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authorNiels de Vos <ndevos@redhat.com>2015-04-03 18:14:13 +0200
committerVijay Bellur <vbellur@redhat.com>2015-04-10 11:39:52 +0000
commit6eb27480b6559103e4437facd7aecbcd373479c9 (patch)
tree946b5531baddce4387ac7786f7230c3d52dd1161 /Makefile.am
parent26cbd3bdf5dad190559afbdf0ac125262c4e90a6 (diff)
build: make contrib/uuid dependency optional
On Linux systems we should use the libuuid from the distribution and not bundle and statically link the contrib/uuid/ bits. libglusterfs/src/compat-uuid.h has been introduced and should become an abstraction layer for different UUID APIs. Non-Linux operating systems should implement their compatibility layer there. Once all operating systems have an implementation in compat-uuid.h, we can remove contrib/uuid/ from the repository completely. Change-Id: I345e5357644be2521685e00358bb8c83c4ea0577 BUG: 1206587 Signed-off-by: Niels de Vos <ndevos@redhat.com> Reviewed-on: http://review.gluster.org/10129 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'Makefile.am')
-rw-r--r--Makefile.am2
1 files changed, 2 insertions, 0 deletions
diff --git a/Makefile.am b/Makefile.am
index 3b71fa8a4ea..05c4af767d4 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -7,6 +7,7 @@ EXTRA_DIST = autogen.sh \
build-aux/xdrgen \
contrib/argp-standalone \
contrib/umountd \
+ contrib/uuid \
$(shell find $(top_srcdir)/tests -type f -print)
SUBDIRS = $(ARGP_STANDALONE_DIR) libglusterfs rpc api xlators glusterfsd \
@@ -17,6 +18,7 @@ pkgconfigdir = @pkgconfigdir@
pkgconfig_DATA = glusterfs-api.pc libgfchangelog.pc libgfdb.pc
CLEANFILES =
+CONFIG_CLEAN_FILES = $(CONTRIB_BUILDDIR)/uuid/uuid_types.h
gitclean: distclean
find . -name Makefile.in -exec rm -f {} \;
2%;'/> -rw-r--r--COPYING-GPLV2339
-rw-r--r--COPYING-LGPLV3165
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-rw-r--r--xlators/storage/posix/src/posix-gfid-path.c243
-rw-r--r--xlators/storage/posix/src/posix-gfid-path.h28
-rw-r--r--xlators/storage/posix/src/posix-handle.c1364
-rw-r--r--xlators/storage/posix/src/posix-handle.h334
-rw-r--r--xlators/storage/posix/src/posix-helpers.c4133
-rw-r--r--xlators/storage/posix/src/posix-inode-fd-ops.c6004
-rw-r--r--xlators/storage/posix/src/posix-inode-handle.h118
-rw-r--r--xlators/storage/posix/src/posix-mem-types.h39
-rw-r--r--xlators/storage/posix/src/posix-messages.h74
-rw-r--r--xlators/storage/posix/src/posix-metadata-disk.h31
-rw-r--r--xlators/storage/posix/src/posix-metadata.c916
-rw-r--r--xlators/storage/posix/src/posix-metadata.h71
-rw-r--r--xlators/storage/posix/src/posix.c4322
-rw-r--r--xlators/storage/posix/src/posix.h729
-rw-r--r--xlators/system/posix-acl/src/Makefile.am17
-rw-r--r--xlators/system/posix-acl/src/posix-acl-mem-types.h23
-rw-r--r--xlators/system/posix-acl/src/posix-acl-messages.h28
-rw-r--r--xlators/system/posix-acl/src/posix-acl-xattr.c253
-rw-r--r--xlators/system/posix-acl/src/posix-acl-xattr.h55
-rw-r--r--xlators/system/posix-acl/src/posix-acl.c3172
-rw-r--r--xlators/system/posix-acl/src/posix-acl.h104
-rw-r--r--xlators/xlator.sym1
2575 files changed, 677966 insertions, 329804 deletions
diff --git a/.clang-format b/.clang-format
new file mode 100644
index 00000000000..84c2efe3fad
--- /dev/null
+++ b/.clang-format
@@ -0,0 +1,107 @@
+---
+Language: Cpp
+# BasedOnStyle: Chromium
+AccessModifierOffset: -1
+AlignAfterOpenBracket: Align
+AlignConsecutiveAssignments: false
+AlignConsecutiveDeclarations: false
+AlignEscapedNewlines: Right
+AlignOperands: true
+AlignTrailingComments: true
+AllowAllParametersOfDeclarationOnNextLine: false
+AllowShortBlocksOnASingleLine: false
+AllowShortCaseLabelsOnASingleLine: false
+AllowShortFunctionsOnASingleLine: Inline
+AllowShortIfStatementsOnASingleLine: false
+AllowShortLoopsOnASingleLine: false
+AlwaysBreakAfterDefinitionReturnType: All
+AlwaysBreakAfterReturnType: All
+AlwaysBreakBeforeMultilineStrings: true
+AlwaysBreakTemplateDeclarations: true
+BinPackArguments: true
+BinPackParameters: true
+BraceWrapping:
+ AfterClass: false
+ AfterControlStatement: false
+ AfterEnum: false
+ AfterFunction: true
+ AfterNamespace: false
+ AfterObjCDeclaration: false
+ AfterStruct: false
+ AfterUnion: false
+ BeforeCatch: false
+ BeforeElse: false
+ IndentBraces: false
+ SplitEmptyFunction: true
+ SplitEmptyRecord: true
+ SplitEmptyNamespace: true
+BreakBeforeBinaryOperators: None
+BreakBeforeBraces: Linux
+BreakBeforeInheritanceComma: false
+BreakBeforeTernaryOperators: true
+BreakConstructorInitializersBeforeComma: false
+BreakConstructorInitializers: BeforeColon
+BreakAfterJavaFieldAnnotations: false
+BreakStringLiterals: true
+ColumnLimit: 80
+CommentPragmas: '^ IWYU pragma:'
+CompactNamespaces: false
+ConstructorInitializerAllOnOneLineOrOnePerLine: true
+ConstructorInitializerIndentWidth: 4
+ContinuationIndentWidth: 4
+Cpp11BracedListStyle: true
+DerivePointerAlignment: false
+DisableFormat: false
+ExperimentalAutoDetectBinPacking: false
+FixNamespaceComments: true
+ForEachMacros:
+ - foreach
+ - Q_FOREACH
+ - BOOST_FOREACH
+IncludeCategories:
+ - Regex: '^<.*\.h>'
+ Priority: 1
+ - Regex: '^<.*'
+ Priority: 2
+ - Regex: '.*'
+ Priority: 3
+IncludeIsMainRegex: '([-_](test|unittest))?$'
+IndentCaseLabels: true
+IndentWidth: 4
+IndentWrappedFunctionNames: false
+JavaScriptQuotes: Leave
+JavaScriptWrapImports: true
+KeepEmptyLinesAtTheStartOfBlocks: false
+MacroBlockBegin: ''
+MacroBlockEnd: ''
+MaxEmptyLinesToKeep: 1
+NamespaceIndentation: None
+ObjCBlockIndentWidth: 2
+ObjCSpaceAfterProperty: false
+ObjCSpaceBeforeProtocolList: false
+PenaltyBreakAssignment: 200
+PenaltyBreakBeforeFirstCallParameter: 1
+PenaltyBreakComment: 300
+PenaltyBreakFirstLessLess: 120
+PenaltyBreakString: 1000
+PenaltyExcessCharacter: 1000000
+PenaltyReturnTypeOnItsOwnLine: 200
+PointerAlignment: Right
+ReflowComments: true
+SortIncludes: false
+SortUsingDeclarations: true
+SpaceAfterCStyleCast: false
+SpaceAfterTemplateKeyword: true
+SpaceBeforeAssignmentOperators: true
+SpaceBeforeParens: ControlStatements
+SpaceInEmptyParentheses: false
+SpacesBeforeTrailingComments: 2
+SpacesInAngles: false
+SpacesInContainerLiterals: true
+SpacesInCStyleCastParentheses: false
+SpacesInParentheses: false
+SpacesInSquareBrackets: false
+Standard: Auto
+TabWidth: 8
+UseTab: Never
+...
diff --git a/.github/ISSUE_TEMPLATE b/.github/ISSUE_TEMPLATE
new file mode 100644
index 00000000000..386ed2d8dd5
--- /dev/null
+++ b/.github/ISSUE_TEMPLATE
@@ -0,0 +1,30 @@
+<!-- Please use this template while reporting an issue, providing as much information as possible. Failure to do so may result in a delayed response. Thank you! -->
+
+**Description of problem:**
+
+
+**The exact command to reproduce the issue**:
+
+
+**The full output of the command that failed**:
+<details>
+
+
+
+</details>
+
+**Expected results:**
+
+
+**Additional info:**
+
+
+**- The output of the `gluster volume info` command**:
+<details>
+
+
+
+</details>
+
+**- The operating system / glusterfs version**:
+
diff --git a/xlators/features/marker/utils/syncdaemon/__init__.py b/.github/PULL_REQUEST_TEMPLATE
index e69de29bb2d..e69de29bb2d 100644
--- a/xlators/features/marker/utils/syncdaemon/__init__.py
+++ b/.github/PULL_REQUEST_TEMPLATE
diff --git a/.github/RELEASE_TRACKER_TEMPLATE b/.github/RELEASE_TRACKER_TEMPLATE
new file mode 100644
index 00000000000..502bbd5556c
--- /dev/null
+++ b/.github/RELEASE_TRACKER_TEMPLATE
@@ -0,0 +1,12 @@
+<!-- Please use this template while creating a tracker issue -->
+
+**Description of problem:**
+A tracker issue to track the issues that will be fixed as a part of this release
+
+
+**Major or minor release**:
+
+
+**Release version**:
+
+
diff --git a/.github/stale.yml b/.github/stale.yml
new file mode 100644
index 00000000000..460e327c6ea
--- /dev/null
+++ b/.github/stale.yml
@@ -0,0 +1,25 @@
+# Number of days of inactivity before an issue becomes stale
+daysUntilStale: 210
+# Number of days of inactivity before a stale issue is closed
+daysUntilClose: 15
+# Issues with these labels will never be considered stale
+exemptLabels:
+ - pinned
+ - security
+# Label to use when marking an issue as stale
+staleLabel: wontfix
+
+# Comment to post when marking an issue as stale. Set to `false` to disable
+markComment: >
+ Thank you for your contributions.
+
+ Noticed that this issue is not having any activity in last ~6 months! We
+ are marking this issue as stale because it has not had recent activity.
+
+ It will be closed in 2 weeks if no one responds with a comment here.
+
+
+# Comment to post when closing a stale issue. Set to `false` to disable
+closeComment: >
+ Closing this issue as there was no update since my last update on issue.
+ If this is an issue which is still valid, feel free to open it.
diff --git a/.gitignore b/.gitignore
index c5371b26436..fc5ba586f8e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -3,31 +3,123 @@ autom4te.cache
build
config.*
configure
+cscope.*
+tags
depcomp
+INSTALL
install-sh
ltmain.sh
+Makefile
Makefile.in
missing
+stamp-h1
+stamp-h2
+test-driver
+*compile
+*.gcda
+*.gcno
*.sw?
*~
-*lo
-*la
-*o
+*.lo
+*.la
+*.o
+*.tar.gz
+*.rpm
+*.diff
+*.patch
.libs
-Makefile
-stamp-h1
+.deps
+.dirstamp
+
+# Softlinks to test and log
+log
+*.vol
+.clang-format
+
+# cmocka unit tests
+*.log
+*.trs
+*_unittest
# Generated files
-extras/init.d/glusterfs-server.plist
-extras/init.d/glusterfsd-Debian
-extras/init.d/glusterfsd-Redhat
-extras/init.d/glusterfsd-SuSE
+site.h
+*.py[co]
+api/examples/__init__.py
+api/examples/setup.py
+api/src/gfapi.map
+cli/src/gluster
+contrib/fuse-util/fusermount-glusterfs
+extras/geo-rep/gsync-sync-gfid
+extras/geo-rep/schedule_georep.py
+extras/snap_scheduler/conf.py
+extras/init.d/glusterd-Debian
+extras/init.d/glusterd-FreeBSD
+extras/init.d/glusterd-Redhat
+extras/init.d/glusterd-SuSE
+extras/init.d/glusterd.plist
+extras/ocf/glusterd
+extras/ocf/volume
+extras/run-gluster.tmpfiles
+extras/systemd/glusterd.service
+extras/systemd/gluster-ta-volume.service
+extras/systemd/glusterfssharedstorage.service
+extras/who-wrote-glusterfs/gitdm
+geo-replication/.tox
+geo-replication/gsyncd.conf
+geo-replication/src/gsyncd
+geo-replication/src/peer_gsec_create
+geo-replication/src/peer_mountbroker
+geo-replication/src/peer_mountbroker.py
+geo-replication/src/set_geo_rep_pem_keys.sh
+geo-replication/src/peer_georep-sshkey.py
+geo-replication/syncdaemon.egg-info
+geo-replication/syncdaemon/conf.py
+geo-replication/tests/unit/.coverage
+geo-replication/tests/unit/cover
+geo-replication/tests/unit/coverage.xml
+geo-replication/tests/unit/nosetests.xml
+geo-replication/tests/unit/results.html
+glusterfs-api.pc
glusterfs.spec
-libtool
-xlators/mount/fuse/utils/mount.glusterfs
-xlators/mount/fuse/utils/mount_glusterfs
-argp-standalone/libargp.a
+glusterfsd/src/glusterd
+glusterfsd/src/glusterfs
glusterfsd/src/glusterfsd
-libglusterfs/src/spec.lex.c
+glusterfsd/src/gf_attach
+heal/src/glfsheal
+libgfchangelog.pc
+libglusterfs/src/graph.lex.c
libglusterfs/src/y.tab.c
libglusterfs/src/y.tab.h
+libglusterfs/src/defaults.c
+libglusterfs/src/cli1-xdr.h
+libglusterfs/src/protocol-common.h
+libtool
+# copied XDR for cyclic libglusterfs <-> rpc-header dependency
+run-tests.sh
+!tests/basic/fuse/Makefile
+!tests/basic/gfapi/Makefile
+tests/env.rc
+tests/utils/arequal-checksum
+xlators/features/glupy/src/__init__.py
+xlators/features/glupy/src/setup.py
+xlators/mount/fuse/utils/mount.glusterfs
+xlators/mount/fuse/utils/mount_glusterfs
+extras/peer_add_secret_pub
+tools/gfind_missing_files/gcrawler
+tools/glusterfind/glusterfind
+tools/glusterfind/src/tool.conf
+# Eventing
+events/src/eventsapiconf.py
+extras/systemd/glustereventsd.service
+events/src/eventtypes.py
+libglusterfs/src/eventtypes.h
+extras/init.d/glustereventsd-Debian
+extras/init.d/glustereventsd-FreeBSD
+extras/init.d/glustereventsd-Redhat
+tools/setgfid2path/src/gluster-setgfid2path
+xlators/features/cloudsync/src/cloudsync-autogen-fops.c
+xlators/features/cloudsync/src/cloudsync-autogen-fops.h
+xlators/features/utime/src/utime-autogen-fops.c
+xlators/features/utime/src/utime-autogen-fops.h
+tests/basic/metadisp/ftruncate
+xlators/features/metadisp/src/fops.c
diff --git a/.mailmap b/.mailmap
new file mode 100644
index 00000000000..141a1667ffa
--- /dev/null
+++ b/.mailmap
@@ -0,0 +1,43 @@
+# .mailmap, see 'git short-log --help' for details
+#
+# This file needs to match extras/who-wrote-glusterfs/gitdm.aliases.
+#
+# Listing of contributors that filed patches with different email addresses.
+# Format: <name> <main-email> <alias> [<alias> ...]
+#
+
+Amar Tumballi <amarts@redhat.com> <amar@gluster.com> <amar@del.gluster.com>
+Anand Avati <avati@redhat.com> <avati@gluster.com> <avati@dev.gluster.com> <avati@amp.gluster.com> <avati@blackhole.gluster.com>
+Anush Shetty <ashetty@redhat.com> <anush@gluster.com>
+Csaba Henk <csaba@redhat.com> <csaba@gluster.com> <csaba@lowlife.hu> <csaba@zresearch.com>
+Günther Deschner <gd@redhat.com> <gd@samba.org>
+Harshavardhana <fharshav@redhat.com> <harsha@gluster.com> <harsha@zresearch.com> <harsha@dev.gluster.com> <harsha@harshavardhana.net>
+Ji-Hyeon Gim <potatogim@gluesys.com> <potatogim@potatogim.net>
+Justin Clift <justin@gluster.org> <jclift@redhat.com>
+Kaleb S. KEITHLEY <kkeithle@redhat.com> <kkeithle@f16node1.kkeithle.usersys.redhat.com> <kkeithle@linux.keithley.org>
+Kaushal M <kaushal@redhat.com> <kaushal@gluster.com>
+Kaushik BV <kbudiger@redhat.com> <kaushikbv@gluster.com>
+Krishna Srinivas <ksriniva@redhat.com> <krishna@gluster.com> <krishna@zresearch.com> <krishna@guest-laptop>
+Krishnan Parthasarathi <kparthas@redhat.com> <kp@gluster.com>
+Louis Zuckerman <louiszuckerman@gmail.com> <me@louiszuckerman.com>
+M S Vishwanath Bhat <vbhat@redhat.com> <msvbhat@gmail.com> <vishwanath@gluster.com>
+Michael Adam <madam@redhat.com> <obnox@samba.org>
+Oleksandr Natalenko <oleksandr@natalenko.name> <o.natalenko@lanet.ua>
+Patrick Uiterwijk <puiterwijk@fedoraproject.org> <patrick@puiterwijk.org>
+Pavan Sondur <pavan@gluster.com> <pavan@dev.gluster.com>
+Pete Zaitcev <zaitcev@kotori.zaitcev.us> <zaitcev@yahoo.com>
+Pranith Kumar K <pkarampu@redhat.com> <pranithk@gluster.com>
+Prashanth Pai <ppai@redhat.com> <nullpai@gmail.com>
+Raghavendra Bhat <raghavendra@redhat.com> <raghavendrabhat@gluster.com>
+Raghavendra G <rgowdapp@redhat.com> <raghavendra@gluster.com> <raghavendra@zresearch.com>
+Rahul C S <rahulcs@redhat.com> <rahulcssjce@gmail.com>
+Rajesh Amaravathi <rajesh@redhat.com> <rajesh@gluster.com> <rajesh.amaravathi@gmail.com>
+Ravishankar N <ravishankar@redhat.com> <root@ravi2.(none)>
+Sakshi Bansal <sabansal@redhat.com> <sabansal@localhost.localdomain>
+Shehjar Tikoo <shehjart@gluster.com> <shehjart@zresearch.com>
+Venky Shankar <vshankar@redhat.com> <venky@gluster.com>
+Vijay Bellur <vbellur@redhat.com> <vijay@gluster.com> <vijay@dev.gluster.com>
+Vijaykumar Koppad <vkoppad@redhat.com> <vijaykumar.koppad@gmail.com>
+Vijaikumar Mallikarjuna <vmallika@redhat.com>
+Vikas Gorur <vikas@gluster.com> <vikas@zresearch.com>
+shishir gowda <sgowda@redhat.com> <shishirng@gluster.com>
diff --git a/.testignore b/.testignore
new file mode 100644
index 00000000000..fe8f838bf2b
--- /dev/null
+++ b/.testignore
@@ -0,0 +1,64 @@
+.github/ISSUE_TEMPLATE
+.github/PULL_REQUEST_TEMPLATE
+.github/stale.yml
+.gitignore
+.mailmap
+.testignore
+.clang-format
+rfc.sh
+submit-for-review.sh
+AUTHORS
+CONTRIBUTING.md
+COPYING-GPLV2
+COPYING-LGPLV3
+ChangeLog
+INSTALL
+MAINTAINERS
+NEWS
+README.md
+THANKS
+COMMITMENT
+api/examples/README
+api/examples/getvolfile.py
+api/src/README.Symbol_Versions
+build-aux/checkpatch.pl
+contrib/fuse-lib/COPYING.LIB
+contrib/fuse-util/COPYING
+contrib/macfuse/COPYING.txt
+doc/*
+extras/FreeBSD/README.FreeBSD
+extras/Solaris/README.solaris
+extras/Ubuntu/README.Ubuntu
+extras/benchmarking/README
+extras/cliutils/README.md
+extras/command-completion/README
+extras/create_new_xlator/README.md
+extras/glusterfs.vim
+extras/glusterfs-logrotate
+extras/glusterfs-georep-logrotate
+extras/init.d/glusterd-Debian.in
+extras/init.d/glusterd-FreeBSD.in
+extras/init.d/glusterd-Redhat.in
+extras/init.d/glusterd-SuSE.in
+extras/init.d/glusterd.plist.in
+extras/init.d/glustereventsd-Debian.in
+extras/init.d/glustereventsd-FreeBSD.in
+extras/init.d/glustereventsd-Redhat.in
+extras/init.d/rhel5-load-fuse.modules
+extras/logger.conf.example
+extras/snap_scheduler/README.md
+extras/test/ld-preload-test/README
+extras/who-wrote-glusterfs/*
+extras/distributed-testing/*
+geo-replication/syncdaemon/README.md
+geo-replication/test-requirements.txt
+rpc/xdr/src/.gitignore
+tests/README.md
+xlators/experimental/README.md
+xlators/experimental/dht2/README.md
+xlators/experimental/dht2/TODO.md
+xlators/experimental/posix2/README.md
+xlators/experimental/posix2/TODO.md
+xlators/features/glupy/doc/README.md
+xlators/features/glupy/doc/TESTING
+xlators/features/glupy/doc/test.vol
diff --git a/COMMITMENT b/COMMITMENT
new file mode 100644
index 00000000000..16b75efcf29
--- /dev/null
+++ b/COMMITMENT
@@ -0,0 +1,46 @@
+Common Cure Rights Commitment
+Version 1.0
+
+Before filing or continuing to prosecute any legal proceeding or claim
+(other than a Defensive Action) arising from termination of a Covered
+License, we commit to extend to the person or entity ('you') accused
+of violating the Covered License the following provisions regarding
+cure and reinstatement, taken from GPL version 3. As used here, the
+term 'this License' refers to the specific Covered License being
+enforced.
+
+ However, if you cease all violation of this License, then your
+ license from a particular copyright holder is reinstated (a)
+ provisionally, unless and until the copyright holder explicitly
+ and finally terminates your license, and (b) permanently, if the
+ copyright holder fails to notify you of the violation by some
+ reasonable means prior to 60 days after the cessation.
+
+ Moreover, your license from a particular copyright holder is
+ reinstated permanently if the copyright holder notifies you of the
+ violation by some reasonable means, this is the first time you
+ have received notice of violation of this License (for any work)
+ from that copyright holder, and you cure the violation prior to 30
+ days after your receipt of the notice.
+
+We intend this Commitment to be irrevocable, and binding and
+enforceable against us and assignees of or successors to our
+copyrights.
+
+Definitions
+
+'Covered License' means the GNU General Public License, version 2
+(GPLv2), the GNU Lesser General Public License, version 2.1
+(LGPLv2.1), or the GNU Library General Public License, version 2
+(LGPLv2), all as published by the Free Software Foundation.
+
+'Defensive Action' means a legal proceeding or claim that We bring
+against you in response to a prior proceeding or claim initiated by
+you or your affiliate.
+
+'We' means each contributor to this repository as of the date of
+inclusion of this file, including subsidiaries of a corporate
+contributor.
+
+This work is available under a Creative Commons Attribution-ShareAlike
+4.0 International license (https://creativecommons.org/licenses/by-sa/4.0/).
diff --git a/CONTRIBUTING b/CONTRIBUTING
deleted file mode 100644
index 8b3baa7e5f6..00000000000
--- a/CONTRIBUTING
+++ /dev/null
@@ -1,25 +0,0 @@
- Developer's Certificate of Origin 1.1
-
- By making a contribution to this project, I certify that:
-
- (a) The contribution was created in whole or in part by me and I
- have the right to submit it under the open source license
- indicated in the file; or
-
- (b) The contribution is based upon previous work that, to the best
- of my knowledge, is covered under an appropriate open source
- license and I have the right under that license to submit that
- work with modifications, whether created in whole or in part
- by me, under the same open source license (unless I am
- permitted to submit under a different license), as indicated
- in the file; or
-
- (c) The contribution was provided directly to me by some other
- person who certified (a), (b) or (c) and I have not modified
- it.
-
- (d) I understand and agree that this project and the contribution
- are public and that a record of the contribution (including all
- personal information I submit with it, including my sign-off) is
- maintained indefinitely and may be redistributed consistent with
- this project or the open source license(s) involved. \ No newline at end of file
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
new file mode 100644
index 00000000000..65fc3497104
--- /dev/null
+++ b/CONTRIBUTING.md
@@ -0,0 +1,114 @@
+# GlusterFS project Contribution guidelines
+
+## Development Workflow
+
+We follow most of the details as per the [document here](https://help.github.com/en/github/collaborating-with-issues-and-pull-requests). If you are not aware of the github workflow, it is recommended to go through them before continuing here.
+
+
+#### Get the Repository setup
+
+0. Fork Repository
+ - Fork [GlusterFS repository](https://github.com/gluster/glusterfs/fork).
+
+1. Clone Repository
+ - Clone the glusterfs repo freshly from github using below steps.
+
+```
+ git clone git@github.com:${username}/glusterfs.git
+ cd glusterfs/
+ git remote add upstream git@github.com:gluster/glusterfs.git
+```
+
+About two tasks are one time for the life time. You can continue to use the same repository for all the work in future.
+
+#### Development & Other flows
+
+0. Issue:
+ - Make sure there is an issue filed for the task you are working on.
+ - If it is not filed, open the issue with all the description.
+ - If it is a bug fix, add label "Type:Bug".
+ - If it is an RFC, provide all the documentation, and request for "DocApproved", and "SpecApproved" label.
+
+1. Code:
+ - Start coding
+ - Build and test locally
+ - Make sure clang-format is installed and is run on the patch.
+
+2. Keep up-to-date
+ - GlusterFS is a large project with many developers, so there would be one or the other patch everyday.
+ - It is critical for developer to be up-to-date with `devel` repo to be Conflict-Free when PR is opened.
+ - Git provides many options to keep up-to-date, below is one of them
+```
+ git fetch upstream
+ git rebase upstream/devel
+```
+ - It is recommended you keep pushing to your repo every day, so you don't loose any work.
+ - It can be done by `./rfc.sh` (or `git push origin HEAD:issueNNN`)
+
+2. Commit Message / PR description:
+ - The name of the branch on your personal fork can start with issueNNNN, followed by anything of your choice.
+ - PRs continue to have the title of format "component: \<title\>", like it is practiced now.
+ - When you open a PR, having a reference Issue for the commit is mandatory in GlusterFS.
+ - Commit message can have, either `Fixes: #NNNN` or `Updates: #NNNN` in a separate line in the commit message.
+ - Here, NNNN is the Issue ID in glusterfs repository.
+ - Each commit needs the author to have the "Signed-off-by: Name \<email\>" line.
+ - Can do this by `-s` option for `git commit`.
+ - If the PR is not ready for review, apply the label `work-in-progress`.
+ - Check the availability of "Draft PR" is present for you, if yes, use that instead.
+
+3. Tests:
+ - All the required smoke tests would be auto-triggered.
+ - Developers get a chance to retrigger the smoke tests using **"/recheck smoke"** as comment.
+ - The "regression" tests would be triggered by a comment **"/run regression"** from developers in the [@gluster-maintainers](https://github.com/orgs/gluster/teams/gluster-maintainers) group.
+ - Ask for help as comment in PR if you have any questions about the process!
+
+4. Review Process:
+ - `+2` : is equivalent to "Approve" from the people in the maintainer's group.
+ - `+1` : can be given by a maintainer/reviewer by explicitly stating that in the comment.
+ - `-1` : provide details on required changes and pick "Request Changes" while submitting your review.
+ - `-2` : done by adding the `DO-NOT-MERGE` label.
+
+ - Any further discussions can happen as comments in the PR.
+
+5. Making changes:
+ - There are 2 approaches to submit changes done after addressing review comments.
+ - Commit changes as a new commit on top of the original commits in the branch, and push the changes to same branch (issueNNNN)
+ - Commit changes into the same commit with `--amend` option, and do a push to the same branch with `--force` option.
+
+6. Merging:
+ - GlusterFS project follows 'Squash and Merge' method
+ - This is mainly to preserve the historic Gerrit method of one patch in `git log` for one URL link.
+ - This also makes every merge a complete patch, which has passed all tests.
+ - The merging of the patch is expected to be done by the maintainers.
+ - It can be done when all the tests (smoke and regression) pass.
+ - When the PR has 'Approved' flag from corresponding maintainer.
+ - If you feel there is delay, feel free to add a comment, discuss the same in Slack channel, or send email.
+
+## By contributing to this project, the contributor would need to agree to below.
+
+### Developer's Certificate of Origin 1.1
+
+By making a contribution to this project, I certify that:
+
+(a) The contribution was created in whole or in part by me and I
+ have the right to submit it under the open source license
+ indicated in the file; or
+
+(b) The contribution is based upon previous work that, to the best
+ of my knowledge, is covered under an appropriate open source
+ license and I have the right under that license to submit that
+ work with modifications, whether created in whole or in part
+ by me, under the same open source license (unless I am
+ permitted to submit under a different license), as indicated
+ in the file; or
+
+(c) The contribution was provided directly to me by some other
+ person who certified (a), (b) or (c) and I have not modified
+ it.
+
+(d) I understand and agree that this project and the contribution
+ are public and that a record of the contribution (including all
+ personal information I submit with it, including my sign-off) is
+ maintained indefinitely and may be redistributed consistent with
+ this project or the open source license(s) involved.
+
diff --git a/COPYING b/COPYING
deleted file mode 100644
index 5737cfa27e2..00000000000
--- a/COPYING
+++ /dev/null
@@ -1,674 +0,0 @@
- GNU GENERAL PUBLIC LICENSE
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-otherwise) that contradict the conditions of this License, they do not
-excuse you from the conditions of this License. If you cannot convey a
-covered work so as to satisfy simultaneously your obligations under this
-License and any other pertinent obligations, then as a consequence you may
-not convey it at all. For example, if you agree to terms that obligate you
-to collect a royalty for further conveying from those to whom you convey
-the Program, the only way you could satisfy both those terms and this
-License would be to refrain entirely from conveying the Program.
-
- 13. Use with the GNU General Public License.
-
- Notwithstanding any other provision of this License, you have
-permission to link or combine any covered work with a work licensed
-under version 3 of the GNU General Public License into a single
-combined work, and to convey the resulting work. The terms of this
-License will continue to apply to the part which is the covered work,
-but the special requirements of the GNU General Public License,
-section 13, concerning interaction through a network will apply to the
-combination as such.
-
- 14. Revised Versions of this License.
-
- The Free Software Foundation may publish revised and/or new versions of
-the GNU General Public License from time to time. Such new versions will
-be similar in spirit to the present version, but may differ in detail to
-address new problems or concerns.
-
- Each version is given a distinguishing version number. If the
-Program specifies that a certain numbered version of the GNU General
-Public License "or any later version" applies to it, you have the
-option of following the terms and conditions either of that numbered
-version or of any later version published by the Free Software
-Foundation. If the Program does not specify a version number of the
-GNU General Public License, you may choose any version ever published
-by the Free Software Foundation.
-
- If the Program specifies that a proxy can decide which future
-versions of the GNU General Public License can be used, that proxy's
-public statement of acceptance of a version permanently authorizes you
-to choose that version for the Program.
-
- Later license versions may give you additional or different
-permissions. However, no additional obligations are imposed on any
-author or copyright holder as a result of your choosing to follow a
-later version.
-
- 15. Disclaimer of Warranty.
-
- THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
-APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
-HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
-OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
-THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
-PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
-IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
-ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
-
- 16. Limitation of Liability.
-
- IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
-WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
-THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
-GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
-USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
-DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
-PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
-EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
-SUCH DAMAGES.
-
- 17. Interpretation of Sections 15 and 16.
-
- If the disclaimer of warranty and limitation of liability provided
-above cannot be given local legal effect according to their terms,
-reviewing courts shall apply local law that most closely approximates
-an absolute waiver of all civil liability in connection with the
-Program, unless a warranty or assumption of liability accompanies a
-copy of the Program in return for a fee.
-
- END OF TERMS AND CONDITIONS
-
- How to Apply These Terms to Your New Programs
-
- If you develop a new program, and you want it to be of the greatest
-possible use to the public, the best way to achieve this is to make it
-free software which everyone can redistribute and change under these terms.
-
- To do so, attach the following notices to the program. It is safest
-to attach them to the start of each source file to most effectively
-state the exclusion of warranty; and each file should have at least
-the "copyright" line and a pointer to where the full notice is found.
-
- <one line to give the program's name and a brief idea of what it does.>
- Copyright (C) <year> <name of author>
-
- This program is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program. If not, see <http://www.gnu.org/licenses/>.
-
-Also add information on how to contact you by electronic and paper mail.
-
- If the program does terminal interaction, make it output a short
-notice like this when it starts in an interactive mode:
-
- <program> Copyright (C) <year> <name of author>
- This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
- This is free software, and you are welcome to redistribute it
- under certain conditions; type `show c' for details.
-
-The hypothetical commands `show w' and `show c' should show the appropriate
-parts of the General Public License. Of course, your program's commands
-might be different; for a GUI interface, you would use an "about box".
-
- You should also get your employer (if you work as a programmer) or school,
-if any, to sign a "copyright disclaimer" for the program, if necessary.
-For more information on this, and how to apply and follow the GNU GPL, see
-<http://www.gnu.org/licenses/>.
-
- The GNU General Public License does not permit incorporating your program
-into proprietary programs. If your program is a subroutine library, you
-may consider it more useful to permit linking proprietary applications with
-the library. If this is what you want to do, use the GNU Lesser General
-Public License instead of this License. But first, please read
-<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/COPYING-GPLV2 b/COPYING-GPLV2
new file mode 100644
index 00000000000..d159169d105
--- /dev/null
+++ b/COPYING-GPLV2
@@ -0,0 +1,339 @@
+ GNU GENERAL PUBLIC LICENSE
+ Version 2, June 1991
+
+ Copyright (C) 1989, 1991 Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+ Preamble
+
+ The licenses for most software are designed to take away your
+freedom to share and change it. By contrast, the GNU General Public
+License is intended to guarantee your freedom to share and change free
+software--to make sure the software is free for all its users. This
+General Public License applies to most of the Free Software
+Foundation's software and to any other program whose authors commit to
+using it. (Some other Free Software Foundation software is covered by
+the GNU Lesser General Public License instead.) You can apply it to
+your programs, too.
+
+ When we speak of free software, we are referring to freedom, not
+price. Our General Public Licenses are designed to make sure that you
+have the freedom to distribute copies of free software (and charge for
+this service if you wish), that you receive source code or can get it
+if you want it, that you can change the software or use pieces of it
+in new free programs; and that you know you can do these things.
+
+ To protect your rights, we need to make restrictions that forbid
+anyone to deny you these rights or to ask you to surrender the rights.
+These restrictions translate to certain responsibilities for you if you
+distribute copies of the software, or if you modify it.
+
+ For example, if you distribute copies of such a program, whether
+gratis or for a fee, you must give the recipients all the rights that
+you have. You must make sure that they, too, receive or can get the
+source code. And you must show them these terms so they know their
+rights.
+
+ We protect your rights with two steps: (1) copyright the software, and
+(2) offer you this license which gives you legal permission to copy,
+distribute and/or modify the software.
+
+ Also, for each author's protection and ours, we want to make certain
+that everyone understands that there is no warranty for this free
+software. If the software is modified by someone else and passed on, we
+want its recipients to know that what they have is not the original, so
+that any problems introduced by others will not reflect on the original
+authors' reputations.
+
+ Finally, any free program is threatened constantly by software
+patents. We wish to avoid the danger that redistributors of a free
+program will individually obtain patent licenses, in effect making the
+program proprietary. To prevent this, we have made it clear that any
+patent must be licensed for everyone's free use or not licensed at all.
+
+ The precise terms and conditions for copying, distribution and
+modification follow.
+
+ GNU GENERAL PUBLIC LICENSE
+ TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION
+
+ 0. This License applies to any program or other work which contains
+a notice placed by the copyright holder saying it may be distributed
+under the terms of this General Public License. The "Program", below,
+refers to any such program or work, and a "work based on the Program"
+means either the Program or any derivative work under copyright law:
+that is to say, a work containing the Program or a portion of it,
+either verbatim or with modifications and/or translated into another
+language. (Hereinafter, translation is included without limitation in
+the term "modification".) Each licensee is addressed as "you".
+
+Activities other than copying, distribution and modification are not
+covered by this License; they are outside its scope. The act of
+running the Program is not restricted, and the output from the Program
+is covered only if its contents constitute a work based on the
+Program (independent of having been made by running the Program).
+Whether that is true depends on what the Program does.
+
+ 1. You may copy and distribute verbatim copies of the Program's
+source code as you receive it, in any medium, provided that you
+conspicuously and appropriately publish on each copy an appropriate
+copyright notice and disclaimer of warranty; keep intact all the
+notices that refer to this License and to the absence of any warranty;
+and give any other recipients of the Program a copy of this License
+along with the Program.
+
+You may charge a fee for the physical act of transferring a copy, and
+you may at your option offer warranty protection in exchange for a fee.
+
+ 2. You may modify your copy or copies of the Program or any portion
+of it, thus forming a work based on the Program, and copy and
+distribute such modifications or work under the terms of Section 1
+above, provided that you also meet all of these conditions:
+
+ a) You must cause the modified files to carry prominent notices
+ stating that you changed the files and the date of any change.
+
+ b) You must cause any work that you distribute or publish, that in
+ whole or in part contains or is derived from the Program or any
+ part thereof, to be licensed as a whole at no charge to all third
+ parties under the terms of this License.
+
+ c) If the modified program normally reads commands interactively
+ when run, you must cause it, when started running for such
+ interactive use in the most ordinary way, to print or display an
+ announcement including an appropriate copyright notice and a
+ notice that there is no warranty (or else, saying that you provide
+ a warranty) and that users may redistribute the program under
+ these conditions, and telling the user how to view a copy of this
+ License. (Exception: if the Program itself is interactive but
+ does not normally print such an announcement, your work based on
+ the Program is not required to print an announcement.)
+
+These requirements apply to the modified work as a whole. If
+identifiable sections of that work are not derived from the Program,
+and can be reasonably considered independent and separate works in
+themselves, then this License, and its terms, do not apply to those
+sections when you distribute them as separate works. But when you
+distribute the same sections as part of a whole which is a work based
+on the Program, the distribution of the whole must be on the terms of
+this License, whose permissions for other licensees extend to the
+entire whole, and thus to each and every part regardless of who wrote it.
+
+Thus, it is not the intent of this section to claim rights or contest
+your rights to work written entirely by you; rather, the intent is to
+exercise the right to control the distribution of derivative or
+collective works based on the Program.
+
+In addition, mere aggregation of another work not based on the Program
+with the Program (or with a work based on the Program) on a volume of
+a storage or distribution medium does not bring the other work under
+the scope of this License.
+
+ 3. You may copy and distribute the Program (or a work based on it,
+under Section 2) in object code or executable form under the terms of
+Sections 1 and 2 above provided that you also do one of the following:
+
+ a) Accompany it with the complete corresponding machine-readable
+ source code, which must be distributed under the terms of Sections
+ 1 and 2 above on a medium customarily used for software interchange; or,
+
+ b) Accompany it with a written offer, valid for at least three
+ years, to give any third party, for a charge no more than your
+ cost of physically performing source distribution, a complete
+ machine-readable copy of the corresponding source code, to be
+ distributed under the terms of Sections 1 and 2 above on a medium
+ customarily used for software interchange; or,
+
+ c) Accompany it with the information you received as to the offer
+ to distribute corresponding source code. (This alternative is
+ allowed only for noncommercial distribution and only if you
+ received the program in object code or executable form with such
+ an offer, in accord with Subsection b above.)
+
+The source code for a work means the preferred form of the work for
+making modifications to it. For an executable work, complete source
+code means all the source code for all modules it contains, plus any
+associated interface definition files, plus the scripts used to
+control compilation and installation of the executable. However, as a
+special exception, the source code distributed need not include
+anything that is normally distributed (in either source or binary
+form) with the major components (compiler, kernel, and so on) of the
+operating system on which the executable runs, unless that component
+itself accompanies the executable.
+
+If distribution of executable or object code is made by offering
+access to copy from a designated place, then offering equivalent
+access to copy the source code from the same place counts as
+distribution of the source code, even though third parties are not
+compelled to copy the source along with the object code.
+
+ 4. You may not copy, modify, sublicense, or distribute the Program
+except as expressly provided under this License. Any attempt
+otherwise to copy, modify, sublicense or distribute the Program is
+void, and will automatically terminate your rights under this License.
+However, parties who have received copies, or rights, from you under
+this License will not have their licenses terminated so long as such
+parties remain in full compliance.
+
+ 5. You are not required to accept this License, since you have not
+signed it. However, nothing else grants you permission to modify or
+distribute the Program or its derivative works. These actions are
+prohibited by law if you do not accept this License. Therefore, by
+modifying or distributing the Program (or any work based on the
+Program), you indicate your acceptance of this License to do so, and
+all its terms and conditions for copying, distributing or modifying
+the Program or works based on it.
+
+ 6. Each time you redistribute the Program (or any work based on the
+Program), the recipient automatically receives a license from the
+original licensor to copy, distribute or modify the Program subject to
+these terms and conditions. You may not impose any further
+restrictions on the recipients' exercise of the rights granted herein.
+You are not responsible for enforcing compliance by third parties to
+this License.
+
+ 7. If, as a consequence of a court judgment or allegation of patent
+infringement or for any other reason (not limited to patent issues),
+conditions are imposed on you (whether by court order, agreement or
+otherwise) that contradict the conditions of this License, they do not
+excuse you from the conditions of this License. If you cannot
+distribute so as to satisfy simultaneously your obligations under this
+License and any other pertinent obligations, then as a consequence you
+may not distribute the Program at all. For example, if a patent
+license would not permit royalty-free redistribution of the Program by
+all those who receive copies directly or indirectly through you, then
+the only way you could satisfy both it and this License would be to
+refrain entirely from distribution of the Program.
+
+If any portion of this section is held invalid or unenforceable under
+any particular circumstance, the balance of the section is intended to
+apply and the section as a whole is intended to apply in other
+circumstances.
+
+It is not the purpose of this section to induce you to infringe any
+patents or other property right claims or to contest validity of any
+such claims; this section has the sole purpose of protecting the
+integrity of the free software distribution system, which is
+implemented by public license practices. Many people have made
+generous contributions to the wide range of software distributed
+through that system in reliance on consistent application of that
+system; it is up to the author/donor to decide if he or she is willing
+to distribute software through any other system and a licensee cannot
+impose that choice.
+
+This section is intended to make thoroughly clear what is believed to
+be a consequence of the rest of this License.
+
+ 8. If the distribution and/or use of the Program is restricted in
+certain countries either by patents or by copyrighted interfaces, the
+original copyright holder who places the Program under this License
+may add an explicit geographical distribution limitation excluding
+those countries, so that distribution is permitted only in or among
+countries not thus excluded. In such case, this License incorporates
+the limitation as if written in the body of this License.
+
+ 9. The Free Software Foundation may publish revised and/or new versions
+of the General Public License from time to time. Such new versions will
+be similar in spirit to the present version, but may differ in detail to
+address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program
+specifies a version number of this License which applies to it and "any
+later version", you have the option of following the terms and conditions
+either of that version or of any later version published by the Free
+Software Foundation. If the Program does not specify a version number of
+this License, you may choose any version ever published by the Free Software
+Foundation.
+
+ 10. If you wish to incorporate parts of the Program into other free
+programs whose distribution conditions are different, write to the author
+to ask for permission. For software which is copyrighted by the Free
+Software Foundation, write to the Free Software Foundation; we sometimes
+make exceptions for this. Our decision will be guided by the two goals
+of preserving the free status of all derivatives of our free software and
+of promoting the sharing and reuse of software generally.
+
+ NO WARRANTY
+
+ 11. BECAUSE THE PROGRAM IS LICENSED FREE OF CHARGE, THERE IS NO WARRANTY
+FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN
+OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES
+PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED
+OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS
+TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE
+PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING,
+REPAIR OR CORRECTION.
+
+ 12. IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MAY MODIFY AND/OR
+REDISTRIBUTE THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES,
+INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING
+OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED
+TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY
+YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER
+PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE
+POSSIBILITY OF SUCH DAMAGES.
+
+ END OF TERMS AND CONDITIONS
+
+ How to Apply These Terms to Your New Programs
+
+ If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+ To do so, attach the following notices to the program. It is safest
+to attach them to the start of each source file to most effectively
+convey the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+ <one line to give the program's name and a brief idea of what it does.>
+ Copyright (C) <year> <name of author>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program is interactive, make it output a short notice like this
+when it starts in an interactive mode:
+
+ Gnomovision version 69, Copyright (C) year name of author
+ Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+ This is free software, and you are welcome to redistribute it
+ under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License. Of course, the commands you use may
+be called something other than `show w' and `show c'; they could even be
+mouse-clicks or menu items--whatever suits your program.
+
+You should also get your employer (if you work as a programmer) or your
+school, if any, to sign a "copyright disclaimer" for the program, if
+necessary. Here is a sample; alter the names:
+
+ Yoyodyne, Inc., hereby disclaims all copyright interest in the program
+ `Gnomovision' (which makes passes at compilers) written by James Hacker.
+
+ <signature of Ty Coon>, 1 April 1989
+ Ty Coon, President of Vice
+
+This General Public License does not permit incorporating your program into
+proprietary programs. If your program is a subroutine library, you may
+consider it more useful to permit linking proprietary applications with the
+library. If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.
diff --git a/COPYING-LGPLV3 b/COPYING-LGPLV3
new file mode 100644
index 00000000000..65c5ca88a67
--- /dev/null
+++ b/COPYING-LGPLV3
@@ -0,0 +1,165 @@
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+ This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+ 0. Additional Definitions.
+
+ As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+ "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+ An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+ A "Combined Work" is a work produced by combining or linking an
+Application with the Library. The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+ The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+ The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+ 1. Exception to Section 3 of the GNU GPL.
+
+ You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+ 2. Conveying Modified Versions.
+
+ If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+ a) under this License, provided that you make a good faith effort to
+ ensure that, in the event an Application does not supply the
+ function or data, the facility still operates, and performs
+ whatever part of its purpose remains meaningful, or
+
+ b) under the GNU GPL, with none of the additional permissions of
+ this License applicable to that copy.
+
+ 3. Object Code Incorporating Material from Library Header Files.
+
+ The object code form of an Application may incorporate material from
+a header file that is part of the Library. You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+ a) Give prominent notice with each copy of the object code that the
+ Library is used in it and that the Library and its use are
+ covered by this License.
+
+ b) Accompany the object code with a copy of the GNU GPL and this license
+ document.
+
+ 4. Combined Works.
+
+ You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+ a) Give prominent notice with each copy of the Combined Work that
+ the Library is used in it and that the Library and its use are
+ covered by this License.
+
+ b) Accompany the Combined Work with a copy of the GNU GPL and this license
+ document.
+
+ c) For a Combined Work that displays copyright notices during
+ execution, include the copyright notice for the Library among
+ these notices, as well as a reference directing the user to the
+ copies of the GNU GPL and this license document.
+
+ d) Do one of the following:
+
+ 0) Convey the Minimal Corresponding Source under the terms of this
+ License, and the Corresponding Application Code in a form
+ suitable for, and under terms that permit, the user to
+ recombine or relink the Application with a modified version of
+ the Linked Version to produce a modified Combined Work, in the
+ manner specified by section 6 of the GNU GPL for conveying
+ Corresponding Source.
+
+ 1) Use a suitable shared library mechanism for linking with the
+ Library. A suitable mechanism is one that (a) uses at run time
+ a copy of the Library already present on the user's computer
+ system, and (b) will operate properly with a modified version
+ of the Library that is interface-compatible with the Linked
+ Version.
+
+ e) Provide Installation Information, but only if you would otherwise
+ be required to provide such information under section 6 of the
+ GNU GPL, and only to the extent that such information is
+ necessary to install and execute a modified version of the
+ Combined Work produced by recombining or relinking the
+ Application with a modified version of the Linked Version. (If
+ you use option 4d0, the Installation Information must accompany
+ the Minimal Corresponding Source and Corresponding Application
+ Code. If you use option 4d1, you must provide the Installation
+ Information in the manner specified by section 6 of the GNU GPL
+ for conveying Corresponding Source.)
+
+ 5. Combined Libraries.
+
+ You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+ a) Accompany the combined library with a copy of the same work based
+ on the Library, uncombined with any other library facilities,
+ conveyed under the terms of this License.
+
+ b) Give prominent notice with the combined library that part of it
+ is a work based on the Library, and explaining where to find the
+ accompanying uncombined form of the same work.
+
+ 6. Revised Versions of the GNU Lesser General Public License.
+
+ The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+ If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
diff --git a/INSTALL b/INSTALL
index 88e28999df9..a56390e54fb 100644
--- a/INSTALL
+++ b/INSTALL
@@ -1,32 +1,47 @@
Installation Instructions
*************************
-Run ./configure after untaring the package.
+0. If you have cloned from git, run ./autogen.sh.
+
+1. Run ./configure.
bash# ./configure
GlusterFS configure summary
===========================
- FUSE client : yes
- Infiniband verbs : yes
- epoll IO multiplex : yes
- Berkeley-DB : yes
- libglusterfsclient : yes
- mod_glusterfs : yes
- argp-standalone : no
+ GlusterFS configure summary
+ ===========================
+ FUSE client : yes
+ Infiniband verbs : yes
+ epoll IO multiplex : yes
+ argp-standalone : no
+ fusermount : yes
+ readline : yes
+ georeplication : yes
+ Linux-AIO : yes
+ Enable Debug : no
+ Block Device xlator : yes
+ glupy : yes
+ Use syslog : yes
+ XML output : yes
+ QEMU Block formats : yes
+ Encryption xlator : yes
+
The configure summary will tell you what all components will be built with
GlusterFS. Other than 'argp-standalone' if something else says 'no', that
feature in GlusterFS will not be built. 'argp-standalone' package will only
be used if the system doesn't have a proper argp package installed.
-Now just run 'make' and later run 'make install' to install the package.
+2. Now just run 'make' and later run 'make install' to install the package.
bash# make
bash# make install
-Installation complete :-)
+Installation completed :-)
bash# glusterfs --version
Make sure your version is the latest from the release, and the one you
just installed :-)
+
+For more information on GlusterFS installation refer# http://docs.gluster.org/en/latest/Developer-guide/Building-GlusterFS/
diff --git a/MAINTAINERS b/MAINTAINERS
new file mode 100644
index 00000000000..953e8755fd9
--- /dev/null
+++ b/MAINTAINERS
@@ -0,0 +1,510 @@
+GlusterFS Maintainers
+=====================
+
+The intention of this file is not to establish who owns what portions of the
+code base, but to provide a set of names that developers can consult when they
+have a question about a particular subset and also to provide a set of names
+to be CC'd when submitting a patch to obtain appropriate review.
+
+In general, if you have a question about inclusion of a patch, you should
+consult gluster-devel@gluster.org and not any specific individual privately.
+
+Descriptions of section entries:
+
+ M: Main contact that knows and takes care of this area
+ L: Mailing list that is relevant to this area
+ W: Web-page with status/info
+ Q: Patchwork web based patch tracking system site
+ T: SCM tree type and location. Type is one of: git, hg, quilt, stgit.
+ S: Status, one of the following:
+ Supported: Someone is actually paid to look after this.
+ Maintained: Someone actually looks after it.
+ Odd Fixes: It has a maintainer but they don't have time to do
+ much other than throw the odd patch in. See below.
+ Orphan: No current maintainer [but maybe you could take the
+ role as you write your new code].
+ Obsolete: Old code. Something tagged obsolete generally means
+ it has been replaced by a better system and you
+ should be using that.
+ F: Files and directories with wildcard patterns.
+ A trailing slash includes all files and subdirectory files.
+ F: drivers/net/ all files in and below drivers/net
+ F: drivers/net/* all files in drivers/net, but not below
+ F: */net/* all files in "any top level directory"/net
+ One pattern per line. Multiple F: lines acceptable.
+ X: Files and directories that are NOT maintained, same rules as F:
+ Files exclusions are tested before file matches.
+ Can be useful for excluding a specific subdirectory, for instance:
+ F: net/
+ X: net/ipv6/
+ matches all files in and below net excluding net/ipv6/
+ K: Keyword perl extended regex pattern to match content in a
+ patch or file. For instance:
+ K: of_get_profile
+ matches patches or files that contain "of_get_profile"
+ K: \b(printk|pr_(info|err))\b
+ matches patches or files that contain one or more of the words
+ printk, pr_info or pr_err
+ One regex pattern per line. Multiple K: lines acceptable.
+ P: Peer for a component
+
+
+General Project Architects
+--------------------------
+M: Amar Tumballi <amarts@gmail.com>
+M: Xavier Hernandez <xhernandez@redhat.com>
+P: Pranith Karampuri <pranith.karampuri@phonepe.com>
+P: Atin Mukherjee <amukherj@redhat.com>
+
+xlators:
+--------
+Access Control List (ACL)
+M: Raghavendra Talur <rtalur@redhat.com>
+P: Jiffin Tony Thottan <jthottan@redhat.com>
+S: Maintained
+F: xlators/system/posix-acl/
+
+Arbiter
+M: Ravishankar N <ravishankar@redhat.com>
+P: Pranith Karampuri <pranith.karampuri@phonepe.com>
+S: Maintained
+F: xlators/features/arbiter/
+
+Automatic File Replication (AFR)
+M: Pranith Karampuri <pranith.karampuri@phonepe.com>
+M: Ravishankar N <ravishankar@redhat.com>
+P: Karthik US <ksubrahm@redhat.com>
+S: Maintained
+F: xlators/cluster/afr/
+
+Barrier
+M: Raghavendra Bhat <rabhat@redhat.com>
+P: Atin Mukherjee <amukherj@redhat.com>
+S: Maintained
+F: xlators/features/barrier
+
+BitRot
+M: Kotresh HR <khiremat@redhat.com>
+P: Raghavendra Bhat <rabhat@redhat.com>
+S: Maintained
+F: xlators/features/bit-rot/
+
+Changelog
+M: Aravinda V K <avishwan@redhat.com>
+P: Kotresh HR <khiremat@redhat.com>
+S: Maintained
+F: xlators/features/changelog/
+
+Distributed Hashing Table (DHT)
+P: Susant Palai <spalai@redhat.com>
+S: Maintained
+F: xlators/cluster/dht/
+
+Erasure Coding
+M: Pranith Karampuri <pranith.karampuri@phonepe.com>
+M: Xavier Hernandez <xhernandez@redhat.com>
+P: Ashish Pandey <aspandey@redhat.com>
+S: Maintained
+F: xlators/cluster/ec/
+
+Error-gen
+M: Raghavendra Talur <rtalur@redhat.com>
+S: Maintained
+F: xlators/debug/error-gen/
+
+FUSE Bridge
+M: Csaba Henk <chenk@redhat.com>
+P: Niels de Vos <ndevos@redhat.com>
+S: Maintained
+F: xlators/mount/
+
+Index
+M: Pranith Karampuri <pranith.karampuri@phonepe.com>
+P: Ravishankar N <ravishankar@redhat.com>
+S: Maintained
+F: xlators/features/index/
+
+IO Cache
+P: Mohammed Rafi KC <rafi.kavungal@iternity.com>
+S: Maintained
+F: xlators/performance/io-cache/
+
+IO Statistics
+M: Krutika Dhananjay <kdhananj@redhat.com>
+M: Shyam Ranganathan <srangana@redhat.com>
+S: Maintained
+F: xlators/debug/io-stats/
+
+IO threads
+M: Pranith Karampuri <pranith.karampuri@phonepe.com>
+P: Ravishankar N <ravishankar@redhat.com>
+S: Maintained
+F: xlators/performance/io-threads/
+
+Leases
+M: Poornima G <pgurusid@redhat.com>
+P: Niels de Vos <ndevos@redhat.com>
+P: Soumya Koduri <skoduri@redhat.com>
+S: Maintained
+F: xlators/features/leases/
+
+Locks
+M: Krutika Dhananjay <kdhananj@redhat.com>
+P: Xavier Hernandez <xhernandez@redhat.com>
+S: Maintained
+F: xlators/features/locks/
+
+Marker
+M: Kotresh HR <khiremat@redhat.com>
+S: Maintained
+F: xlators/features/marker/
+
+Meta
+M: Mohammed Rafi KC <rafi.kavungal@iternity.com>
+S: Maintained
+F: xlators/features/meta/
+
+Metadata-cache
+M: Poornima G <pgurusid@redhat.com>
+P: Soumya Koduri <skoduri@redhat.com>
+S: Maintained
+F: xlators/performance/md-cache/
+
+Negative-lookup Cache
+M: Poornima G <pgurusid@redhat.com>
+P: Pranith Karampuri <pranith.karampuri@phonepe.com>
+S: Maintained
+F: xlators/performance/nl-cache/
+
+gNFS
+M: Jiffin Tony Thottan <jthottan@redhat.com>
+P: Xie Changlong <xiechanglong@cmss.chinamobile.com>
+P: Amar Tumballi <amarts@gmail.com>
+S: Odd Fixes
+F: xlators/nfs/server/
+
+Open-behind
+S: Maintained
+F: xlators/performance/open-behind/
+
+Posix:
+M: Raghavendra Bhat <raghavendra@redhat.com>
+P: Kotresh HR <khiremat@redhat.com>
+P: Krutika Dhananjay <kdhananj@redhat.com>
+S: Maintained
+F: xlators/storage/posix/
+
+Quick-read
+S: Maintained
+F: xlators/performance/quick-read/
+
+Quota
+M: Shyamsundar Ranganathan <srangana@redhat.com>
+P: Hari Gowtham <hgowtham@redhat.com>
+S: Maintained
+F: xlators/features/quota/
+
+Read-ahead
+P: Csaba Henk <chenk@redhat.com>
+S: Maintained
+F: xlators/performance/read-ahead/
+
+Readdir-ahead
+S: Maintained
+F: xlators/performance/readdir-ahead/
+
+Sharding
+M: Krutika Dhananjay <kdhananj@redhat.com>
+P: Xavier Hernandez <xhernandez@redhat.com>
+S: Maintained
+F: xlators/features/shard/
+
+Trash
+M: Anoop C S <anoopcs@redhat.com>
+M: Jiffin Tony Thottan <jthottan@redhat.com>
+S: Maintained
+F: xlators/features/trash/
+
+Upcall
+M: Poornima G <pgurusid@redhat.com>
+M: Soumya Koduri <skoduri@redhat.com>
+P: Niels de Vos <ndevos@redhat.com>
+S: Maintained
+F: xlators/features/upcall/
+
+Write-behind
+P: Csaba Henk <chenk@redhat.com>
+S: Maintained
+F: xlators/performance/write-behind/
+
+Write Once Read Many
+P: Karthik US <ksubrahm@redhat.com>
+S: Maintained
+F: xlators/features/read-only/
+
+Cloudsync
+M: Susant Kumar Palai <spalai@redhat.com>
+S: Maintained
+F: xlators/features/cloudsync/
+
+Other bits of code:
+-------------------
+
+Doc
+M: Humble Chirammal <hchiramm@redhat.com>
+M: Raghavendra Talur <rtalur@redhat.com>
+S: Maintained
+F: doc/
+
+Geo Replication
+M: Aravinda V K <avishwan@redhat.com>
+M: Kotresh HR <khiremat@redhat.com>
+M: Sunny Kumar <sunkumar@redhat.com>
+S: Maintained
+F: geo-replication/
+
+Glusterfind
+M: Aravinda VK <avishwan@redhat.com>
+S: Maintained
+F: tools/glusterfind/
+
+libgfapi
+M: Niels de Vos <ndevos@redhat.com>
+P: Poornima G <pgurusid@redhat.com>
+P: Shyamsundar Ranganathan <srangana@redhat.com>
+P: Soumya Koduri <skoduri@redhat.com>
+S: Maintained
+F: api/
+
+libglusterfs
+M: Amar Tumballi <amarts@gmail.com>
+M: Xavier Hernandez <xhernandez@redhat.com>
+M: Jeff Darcy <jeff@pl.atyp.us>
+P: Kaleb Keithley <kkeithle@redhat.com>
+P: Niels de Vos <ndevos@redhat.com>
+P: Pranith Karampuri <pranith.karampuri@phonepe.com>
+P: Shyamsundar Ranganathan <srangana@redhat.com>
+S: Maintained
+F: libglusterfs/
+
+xxhash
+M: Aravinda VK <avishwan@redhat.com>
+M: Kotresh HR <khiremat@redhat.com>
+P: Yaniv Kaul <ykaul@redhat.com>
+S: Maintained
+F: contrib/xxhash/
+T: https://github.com/Cyan4973/xxHash.git
+
+Management Daemon - glusterd
+M: Atin Mukherjee <amukherj@redhat.com>
+M: Mohit Agrawal <moagrawa@redhat.com>
+M: Sanju Rakonde <srakonde@redhat.com>
+S: Maintained
+F: cli/
+F: xlators/mgmt/glusterd/
+
+Protocol
+M: Niels de Vos <ndevos@redhat.com>
+P: Mohammed Rafi KC <rafi.kavungal@iternity.com>
+S: Maintained
+F: xlators/protocol/
+
+Remote Procedure Call subsystem
+P: Mohit Agrawal <moagrawa@redhat.com>
+S: Maintained
+F: rpc/rpc-lib/
+F: rpc/xdr/
+
+Snapshot
+M: Raghavendra Bhat <raghavendra@redhat.com>
+P: Mohammed Rafi KC <rafi.kavungal@iternity.com>
+P: Sunny Kumar <sunkumar@redhat.com>
+S: Maintained
+F: xlators/mgmt/glusterd/src/glusterd-snap*
+F: extras/snap-scheduler.py
+
+Socket subsystem
+P: Krutika Dhananjay <kdhananj@redhat.com>
+P: Milind Changire <mchangir@redhat.com>
+P: Mohammed Rafi KC <rafi.kavungal@iternity.com>
+P: Mohit Agrawal <moagrawa@redhat.com>
+S: Maintained
+F: rpc/rpc-transport/socket/
+
+Testing - .t framework
+M: Raghavendra Talur <rtalur@redhat.com>
+S: Maintained
+F: tests/
+
+Utilities
+M: Aravinda VK <avishwan@redhat.com>
+P: Niels de Vos <ndevos@redhat.com>
+P: Raghavendra Talur <rtalur@redhat.com>
+P: Sachidanda Urs <surs@redhat.com>
+S: Maintained
+F: extras/
+
+Events APIs
+M: Aravinda VK <avishwan@redhat.com>
+S: Maintained
+F: events/
+F: libglusterfs/src/events*
+F: libglusterfs/src/eventtypes*
+F: extras/systemd/glustereventsd*
+
+Distribution Specific:
+----------------------
+Build:
+M: Niels de Vos <ndevos@redhat.com>
+M: Hari Gowtham <hgowtham@redhat.com>
+P: Anoop C S <anoopcs@redhat.com>
+P: Raghavendra Talur <rtalur@redhat.com>
+P: Rinku Kothiya <rkothiya@redhat.com>
+S: Maintained
+
+Debian packages on download.gluster.org
+M: packaging@gluster.org
+M: Kaleb Keithley <kkeithle@redhat.com>
+P: Sheetal Pamecha <spamecha@redhat.com>
+P: Shwetha Acharya <sacharya@redhat.com>
+S: Maintained
+W: http://download.gluster.org/pub/gluster/glusterfs/LATEST/Debian/Debian.README
+T: https://github.com/gluster/glusterfs-debian.git
+
+OpenSuSE
+M: packaging@gluster.org
+M: Kaleb Keithley <kkeithle@redhat.com>
+P: Sheetal Pamecha <spamecha@redhat.com>
+P: Shwetha Acharya <sacharya@redhat.com>
+S: Maintained
+W: https://build.opensuse.org/repositories/home:glusterfs
+W: https://download.gluster.org/pub/gluster/glusterfs/LATEST/SuSE/SuSE.README
+T: https://github.com/gluster/glusterfs-suse.git
+
+Packages for the CentOS Storage SIG
+M: centos-devel@centos.org
+M: Niels de Vos <ndevos@redhat.com>
+P: Kaleb Keithley <kkeithle@redhat.com>
+S: Maintained
+W: https://wiki.centos.org/SpecialInterestGroup/Storage/Gluster
+T: https://github.com/CentOS-Storage-SIG/glusterfs.git
+
+Ubuntu PPA
+M: packaging@gluster.org
+M: Kaleb Keithley <kkeithle@redhat.com>
+P: Sheetal Pamecha <spamecha@redhat.com>
+P: Shwetha Acharya <sacharya@redhat.com>
+S: Maintained
+W: https://launchpad.net/~gluster
+W: http://download.gluster.org/pub/gluster/glusterfs/LATEST/Ubuntu/Ubuntu.README
+T: https://github.com/gluster/glusterfs-debian.git
+
+Related projects
+----------------
+Gluster Block
+M: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
+M: Xiubo Li <xiubli@redhat.com>
+S: Maintained
+T: https://github.com/gluster/gluster-block.git
+
+GlusterFS core-utils
+M: Anoop C S <anoopcs@redhat.com>
+S: Maintained
+T: https://github.com/gluster/glusterfs-coreutils.git
+
+NFS-Ganesha FSAL plugin
+M: Jiffin Tony Thottan <jthottan@redhat.com>
+M: Kaleb Keithley <kkeithle@redhat.com>
+M: Soumya Koduri <skoduri@redhat.com>
+S: Maintained
+T: git://github.com/nfs-ganesha/nfs-ganesha.git
+F: src/nfs-ganesha~/src/FSAL/FSAL_GLUSTER/
+
+QEMU integration
+M: Niels de Vos <ndevos@redhat.com>
+M: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>
+S: Maintained
+T: git://git.qemu.org/qemu.git
+F: block/gluster.c
+
+Samba VFS plugin
+M: Anoop C S <anoopcs@redhat.com>
+M: Raghavendra Talur <rtalur@redhat.com>
+M: Michael Adam <madam@redhat.com>
+M: Poornima G <pgurusid@redhat.com>
+S: Maintained
+T: git://git.samba.org/samba.git
+F: source3/modules/vfs_glusterfs.c
+
+Storhaug
+M: Jose A. Rivera <jarrpa@redhat.com>
+P: Kaleb Keithley <kkeithle@redhat.com>
+S: Maintained
+T: https://github.com/linux-ha-storage/storhaug.git
+
+Testing - Glusto-Tests
+M: Jonathan Holloway <jholloway@redhat.com>
+M: Vijay Bhaskar Reddy Avuthu <vavuthu@redhat.com>
+M: Akarsha Rai <akrai@redhat.com>
+S: Maintained
+T: https://github.com/gluster/glusto-tests.git
+
+Wireshark dissectors
+M: Niels de Vos <ndevos@redhat.com>
+S: Maintained
+W: https://forge.gluster.org/wireshark
+T: http://code.wireshark.org/git/wireshark
+F: epan/dissectors/packet-gluster*
+
+Infrastructure
+--------------
+
+Platform
+M: Michael Scherer <misc@redhat.com>
+P: Shyamsundar Ranganathan <srangana@redhat.com>
+P: Amar Tumballi <amarts@gmail.com>
+
+Continuous Integration
+M: Michael Scherer <misc@redhat.com>
+M: Deepshikha Khandelwal <dkhandel@redhat.com>
+P: Niels de Vos <ndevos@redhat.com>
+
+Special Thanks
+--------------
+
+GlusterFS would not be possible without the contributions of:
+
+
+M: Vijay Bellur <vbellur@redhat.com>
+M: Jeff Darcy <jeff@pl.atyp.us>
+M: Shreyas Siravara <sshreyas@fb.com>
+M: Kaushal M <kaushal@redhat.com>
+M: Nigel Babu
+M: Prashanth Pai
+P: Sanoj Unnikrishnan
+P: Milind Changire <mchangir@redhat.com>
+P: Sunil Kumar Acharya <sheggodu@redhat.com>
+M: Samikshan Bairagya <samikshan@gmail.com>
+M: Chris Hertel
+M: M. Mohan Kumar <mohan@in.ibm.com>
+M: Shishir Gowda <gowda.shishir@gmail.com>
+M: Brian Foster <bfoster@redhat.com>
+M: Anand Avati <avati@cs.stanford.edu>
+M: Dennis Schafroth <dennis@schafroth.com>
+M: Harshavardhana <harsha@harshavardhana.net>
+M: Krishnan Parthasarathi
+M: Justin Clift <justin@gluster.org>
+M: Venky Shankar <vshankar@redhat.com>
+M: Shravan Chandrashekar <shravantc99@gmail.com>
+M: Joseph Fernandes
+M: Vijaikumar Mallikarjuna
+M: Anand Subramanian
+M: Bharata B Rao <bharata@linux.vnet.ibm.com>
+M: Rajesh Joseph
+M: Dan Lambright
+M: Jay Vyas
+M: Luis Pabon
+M: Ira Cooper
+M: Shwetha Panduranga
+M: Nithya Balachandran
+M: Raghavendra Gowdappa
diff --git a/Makefile.am b/Makefile.am
index 85e0a13f1b6..98ea5c1038d 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -1,14 +1,55 @@
-EXTRA_DIST = autogen.sh COPYING INSTALL README AUTHORS THANKS NEWS glusterfs.spec
+SOURCES = site.h
-SUBDIRS = argp-standalone libglusterfs rpc xlators glusterfsd $(FUSERMOUNT_SUBDIR) doc extras cli
+EXTRA_DIST = autogen.sh \
+ COPYING-GPLV2 COPYING-LGPLV3 COMMITMENT \
+ INSTALL README.md AUTHORS THANKS NEWS \
+ glusterfs.spec glusterfs-api.pc.in libgfchangelog.pc.in \
+ run-tests.sh \
+ build-aux/pkg-version \
+ contrib/umountd \
+ $(shell find $(top_srcdir)/tests -type f -print)
-CLEANFILES =
+
+SUBDIRS = $(ARGP_STANDALONE_DIR) libglusterfs rpc libglusterd api \
+ glusterfsd xlators $(FUSERMOUNT_SUBDIR) doc extras cli heal \
+ @SYNCDAEMON_SUBDIR@ @UMOUNTD_SUBDIR@ tools events
+
+pkgconfigdir = @pkgconfigdir@
+pkgconfig_DATA = glusterfs-api.pc libgfchangelog.pc
+
+CLEANFILES = glusterfs-api.pc libgfchangelog.pc contrib/umountd/Makefile
+
+clean-local:
+ find . -name '*.o' -o -name '*.lo' -o -name '.Po' | xargs rm -f
gitclean: distclean
find . -name Makefile.in -exec rm -f {} \;
- find . -name Makefile -exec rm -f {} \;
find . -name mount.glusterfs -exec rm -f {} \;
+ find . -name .deps -o -name .libs | xargs rm -rf
rm -fr autom4te.cache
rm -f missing aclocal.m4 config.h.in config.guess config.sub ltmain.sh install-sh configure depcomp
- rm -fr argp-standalone/autom4te.cache
- rm -f argp-standalone/aclocal.m4 argp-standalone/config.h.in argp-standalone/configure argp-standalone/depcomp argp-standalone/install-sh argp-standalone/missing
+
+# dist-hook gets executed with 'make dist', this is the only target getting
+# executed, a dist-hook in other Makefile.am files seem to get ignored.
+dist-hook: gen-VERSION gen-ChangeLog
+ -rm -fr $(distdir)/contrib/umountd/.deps
+ -rm -f $(distdir)/events/src/eventtypes.py
+ -rm -f $(distdir)/tests/env.rc
+ -cp -f $(top_srcdir)/build-aux/config.sub.dist $(distdir)/config.sub
+ -cp -f $(top_srcdir)/build-aux/config.guess.dist $(distdir)/config.guess
+
+.PHONY: gen-VERSION gen-ChangeLog clang-check
+
+clang-check:
+ @$(top_srcdir)/extras/clang-checker.sh
+
+gen-ChangeLog:
+ (cd $(srcdir) && git diff && echo ===== git log ==== && git log) > $(distdir)/ChangeLog
+
+.PHONY : gen-VERSION
+gen-VERSION:
+ if test -d $(top_srcdir)/.git; then \
+ cd $(top_srcdir); \
+ ./build-aux/pkg-version --full \
+ > $(abs_top_builddir)/$(distdir)/VERSION; \
+ fi
diff --git a/README b/README
deleted file mode 100644
index ce648743ee9..00000000000
--- a/README
+++ /dev/null
@@ -1 +0,0 @@
-For more info, please visit http://www.gluster.org/.
diff --git a/README.md b/README.md
new file mode 100644
index 00000000000..9d68e033782
--- /dev/null
+++ b/README.md
@@ -0,0 +1,46 @@
+# Gluster
+ Gluster is a software defined distributed storage that can scale to several
+ petabytes. It provides interfaces for object, block and file storage.
+
+## Development
+ The development workflow is documented in [Contributors guide](CONTRIBUTING.md)
+
+## Documentation
+ The Gluster documentation can be found at [Gluster Docs](http://docs.gluster.org).
+
+## Deployment
+ Quick instructions to build and install can be found in [INSTALL](INSTALL) file.
+
+## Testing
+
+ GlusterFS source contains some functional tests under `tests/` directory. All
+ these tests are run against every patch submitted for review. If you want your
+ patch to be tested, please add a `.t` test file as part of your patch submission.
+ You can also submit a patch to only add a `.t` file for the test case you are
+ aware of.
+
+ To run these tests, on your test-machine, just run `./run-tests.sh`. Don't run
+ this on a machine where you have 'production' glusterfs is running, as it would
+ blindly kill all gluster processes in each runs.
+
+ If you are sending a patch, and want to validate one or few specific tests, then
+ run a single test by running the below command.
+
+```
+ bash# /bin/bash ${path_to_gluster}/tests/basic/rpc-coverage.t
+```
+
+ You can also use `prove` tool if available in your machine, as follows.
+
+```
+ bash# prove -vmfe '/bin/bash' ${path_to_gluster}/tests/basic/rpc-coverage.t
+```
+
+
+## Maintainers
+ The list of Gluster maintainers is available in [MAINTAINERS](MAINTAINERS) file.
+
+## License
+ Gluster is dual licensed under [GPLV2](COPYING-GPLV2) and [LGPLV3+](COPYING-LGPLV3).
+
+ Please visit the [Gluster Home Page](http://www.gluster.org/) to find out more about Gluster.
diff --git a/THANKS b/THANKS
index e1ce5105d79..d056d00bb72 100644
--- a/THANKS
+++ b/THANKS
@@ -1 +1 @@
-For all of you, who use the product and help us making it more robust, useful, popular..
+For all of you, who use the product and help us make it more robust, useful, and popular.
diff --git a/api/Makefile.am b/api/Makefile.am
new file mode 100644
index 00000000000..f0ad1ee971c
--- /dev/null
+++ b/api/Makefile.am
@@ -0,0 +1 @@
+SUBDIRS = src examples
diff --git a/api/examples/Makefile.am b/api/examples/Makefile.am
new file mode 100644
index 00000000000..7112c81d6a7
--- /dev/null
+++ b/api/examples/Makefile.am
@@ -0,0 +1,6 @@
+# The bits needed for glfsxmp
+EXTRA_PROGRAMS = glfsxmp
+glfsxmp_SOURCES = glfsxmp.c
+glfsxmp_CFLAGS = $(GLFS_CFLAGS) -Wall
+glfsxmp_LDADD = $(GLFS_LIBS) -lrt
+
diff --git a/api/examples/README b/api/examples/README
new file mode 100644
index 00000000000..4d2b521f779
--- /dev/null
+++ b/api/examples/README
@@ -0,0 +1,36 @@
+This is an example application which uses libgfapi. It is
+a complete autotools based build system which demonstrates the
+required changes in configure.ac, Makefile.am etc to successfuly
+detect for and build an application against libgfapi.
+
+There are two approaches to building a libgfapi based application:
+
+1. In the presence of pkg-config in your build system.
+This is the recommended approach which is also used in this example.
+For this approach to work, you need to build glusterfs by passing
+--pkgconfigdir=/usr/lib64/pkgconfig (or the appropriate directory)
+in your distro. This already happens if you build RPMs with the
+glusterfs.spec provided in glusterfs.git. You will also need to
+install glusterfs-api RPM.
+
+2. In the absence of pkg-config in your build system.
+Make sure your LDFLAGS includes -L/path/to/lib where libgfapi.so is
+installed and -I/path/to/include/glusterfs where the 'api' directory
+containing the headers are available.
+
+glfsxmp.c
+=========
+
+glfsxmp.c is an example application which uses libgfapi
+
+Compilation Steps For glfsxmp.c
+===============================
+
+1. $./autogen.sh
+2. $./configure
+
+Note: Before running ./configure , as mentioned above, you need to
+ take care of #1 or #2 i.e. pkg-config path or LDFLAGS and
+ -I/<path> with correct values.
+
+3. $make glfsxmp
diff --git a/api/examples/autogen.sh b/api/examples/autogen.sh
new file mode 100755
index 00000000000..1fee6be11bb
--- /dev/null
+++ b/api/examples/autogen.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+aclocal
+autoconf
+automake --foreign
diff --git a/api/examples/configure.ac b/api/examples/configure.ac
new file mode 100644
index 00000000000..b80177a4e87
--- /dev/null
+++ b/api/examples/configure.ac
@@ -0,0 +1,12 @@
+
+AC_INIT([glfs-test],[0.1],[gluster-devel@nongu.org])
+
+AM_INIT_AUTOMAKE
+
+AC_CONFIG_FILES([Makefile])
+
+AC_PROG_CC
+
+PKG_CHECK_MODULES([GLFS], [glusterfs-api >= 3])
+
+AC_OUTPUT
diff --git a/api/examples/getvolfile.py b/api/examples/getvolfile.py
new file mode 100755
index 00000000000..3b2c8ab5a15
--- /dev/null
+++ b/api/examples/getvolfile.py
@@ -0,0 +1,45 @@
+#!/usr/bin/python3
+
+from __future__ import print_function
+import ctypes
+import ctypes.util
+
+api = ctypes.CDLL("libgfapi.so")
+api.glfs_get_volfile.argtypes = [ctypes.c_void_p,
+ ctypes.c_void_p,
+ ctypes.c_ulong]
+api.glfs_get_volfile.restype = ctypes.c_long
+
+
+def get_volfile(host, volume):
+ # This is set to a large value to exercise the "buffer not big enough"
+ # path. More realistically, you'd just start with a huge buffer.
+ BUF_LEN = 0
+ fs = api.glfs_new(volume)
+ # api.glfs_set_logging(fs,"/dev/stderr",7)
+ api.glfs_set_volfile_server(fs, "tcp", host, 24007)
+ api.glfs_init(fs)
+ vbuf = ctypes.create_string_buffer(BUF_LEN)
+ vlen = api.glfs_get_volfile(fs, vbuf, BUF_LEN)
+ if vlen < 0:
+ vlen = BUF_LEN - vlen
+ vbuf = ctypes.create_string_buffer(vlen)
+ vlen = api.glfs_get_volfile(fs, vbuf, vlen)
+ api.glfs_fini(fs)
+ if vlen <= 0:
+ return vlen
+ return vbuf.value[:vlen]
+
+if __name__ == "__main__":
+ import sys
+
+ try:
+ res = get_volfile(*sys.argv[1:3])
+ except:
+ print("fetching volfile failed (volume not started?)")
+
+ try:
+ for line in res.split('\n'):
+ print(line)
+ except:
+ print("bad return value %s" % res)
diff --git a/api/examples/glfsxmp.c b/api/examples/glfsxmp.c
new file mode 100644
index 00000000000..a55616ef739
--- /dev/null
+++ b/api/examples/glfsxmp.c
@@ -0,0 +1,1811 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <glusterfs/api/glfs.h>
+#include <glusterfs/api/glfs-handles.h>
+#include <string.h>
+#include <time.h>
+
+#define TEST_STR_LEN 2048
+
+int
+test_dirops(glfs_t *fs)
+{
+ glfs_fd_t *fd = NULL;
+ char buf[512];
+ struct dirent *entry = NULL;
+
+ fd = glfs_opendir(fs, "/");
+ if (!fd) {
+ fprintf(stderr, "/: %s\n", strerror(errno));
+ return -1;
+ }
+
+ fprintf(stderr, "Entries:\n");
+ while (glfs_readdir_r(fd, (struct dirent *)buf, &entry), entry) {
+ fprintf(stderr, "%s: %lu\n", entry->d_name, glfs_telldir(fd));
+ }
+
+ glfs_closedir(fd);
+ return 0;
+}
+
+int
+test_xattr(glfs_t *fs)
+{
+ char *filename = "/filename2";
+ char *linkfile = "/linkfile";
+ glfs_fd_t *fd = NULL;
+ char buf[512];
+ char *ptr;
+ int ret;
+
+ ret = glfs_setxattr(fs, filename, "user.testkey", "testval", 8, 0);
+ fprintf(stderr, "setxattr(%s): %d (%s)\n", filename, ret, strerror(errno));
+
+ ret = glfs_setxattr(fs, filename, "user.testkey2", "testval", 8, 0);
+ fprintf(stderr, "setxattr(%s): %d (%s)\n", filename, ret, strerror(errno));
+
+ ret = glfs_getxattr(fs, filename, "user.testkey", buf, 512);
+ fprintf(stderr, "getxattr(%s): %d (%s)\n", filename, ret, strerror(errno));
+ if (ret < 0)
+ return -1;
+
+ ret = glfs_listxattr(fs, filename, buf, 512);
+ fprintf(stderr, "listxattr(%s): %d (%s)\n", filename, ret, strerror(errno));
+ if (ret < 0)
+ return -1;
+
+ ret = glfs_symlink(fs, "filename", linkfile);
+ fprintf(stderr, "symlink(%s %s): %s\n", filename, linkfile,
+ strerror(errno));
+ if (ret < 0)
+ return -1;
+
+ ret = glfs_readlink(fs, linkfile, buf, 512);
+ fprintf(stderr, "readlink(%s) : %d (%s)\n", filename, ret, strerror(errno));
+ if (ret < 0)
+ return -1;
+
+ ret = glfs_lsetxattr(fs, filename, "user.testkey3", "testval", 8, 0);
+ fprintf(stderr, "lsetxattr(%s) : %d (%s)\n", linkfile, ret,
+ strerror(errno));
+ if (ret < 0)
+ return -1;
+
+ ret = glfs_llistxattr(fs, linkfile, buf, 512);
+ fprintf(stderr, "llistxattr(%s): %d (%s)\n", filename, ret,
+ strerror(errno));
+ if (ret < 0)
+ return -1;
+
+ ret = glfs_lgetxattr(fs, filename, "user.testkey3", buf, 512);
+ fprintf(stderr, "lgetxattr(%s): %d (%s)\n", linkfile, ret, strerror(errno));
+ if (ret < 0)
+ return -1;
+
+ for (ptr = buf; ptr < buf + ret; ptr++) {
+ printf("key=%s\n", ptr);
+ ptr += strlen(ptr);
+ }
+
+ ret = glfs_removexattr(fs, filename, "user.testkey2");
+ fprintf(stderr, "removexattr(%s): %d (%s)\n", filename, ret,
+ strerror(errno));
+
+ fd = glfs_open(fs, filename, O_RDWR);
+ fprintf(stderr, "open(%s): (%p) %s\n", filename, fd, strerror(errno));
+
+ ret = glfs_fsetxattr(fd, "user.testkey2", "testval", 8, 0);
+ fprintf(stderr, "fsetxattr(%s): %d (%s)\n", filename, ret, strerror(errno));
+
+ ret = glfs_fgetxattr(fd, "user.testkey2", buf, 512);
+ fprintf(stderr, "fgetxattr(%s): %d (%s)\n", filename, ret, strerror(errno));
+
+ ret = glfs_flistxattr(fd, buf, 512);
+ fprintf(stderr, "flistxattr(%s): %d (%s)\n", filename, ret,
+ strerror(errno));
+ if (ret < 0)
+ return -1;
+
+ for (ptr = buf; ptr < buf + ret; ptr++) {
+ printf("key=%s\n", ptr);
+ ptr += strlen(ptr);
+ }
+
+ ret = glfs_fremovexattr(fd, "user.testkey2");
+ fprintf(stderr, "fremovexattr(%s): %d (%s)\n", filename, ret,
+ strerror(errno));
+
+ glfs_close(fd);
+
+ return 0;
+}
+
+int
+test_chdir(glfs_t *fs)
+{
+ int ret = -1;
+ char *dir = "/dir";
+ char *topdir = "/topdir";
+ char *linkdir = "/linkdir";
+ char *linkdir2 = "/linkdir2";
+ char *subdir = "./subdir";
+ char *respath = NULL;
+ char pathbuf[4096];
+
+ ret = glfs_mkdir(fs, topdir, 0755);
+ fprintf(stderr, "mkdir(%s): %s\n", topdir, strerror(errno));
+ if (ret)
+ return -1;
+
+ ret = glfs_mkdir(fs, dir, 0755);
+ fprintf(stderr, "mkdir(%s): %s\n", dir, strerror(errno));
+ if (ret)
+ return -1;
+
+ respath = glfs_getcwd(fs, pathbuf, 4096);
+ fprintf(stdout, "getcwd() = %s\n", respath);
+
+ ret = glfs_symlink(fs, "topdir", linkdir);
+ if (ret) {
+ fprintf(stderr, "symlink(%s, %s): %s\n", topdir, linkdir,
+ strerror(errno));
+ return -1;
+ }
+
+ ret = glfs_chdir(fs, linkdir);
+ if (ret) {
+ fprintf(stderr, "chdir(%s): %s\n", linkdir, strerror(errno));
+ return -1;
+ }
+
+ respath = glfs_getcwd(fs, pathbuf, 4096);
+ fprintf(stdout, "getcwd() = %s\n", respath);
+
+ respath = glfs_realpath(fs, subdir, pathbuf);
+ if (respath) {
+ fprintf(stderr, "realpath(%s) worked unexpectedly: %s\n", subdir,
+ respath);
+ return -1;
+ }
+
+ ret = glfs_mkdir(fs, subdir, 0755);
+ if (ret) {
+ fprintf(stderr, "mkdir(%s): %s\n", subdir, strerror(errno));
+ return -1;
+ }
+
+ respath = glfs_realpath(fs, subdir, pathbuf);
+ if (!respath) {
+ fprintf(stderr, "realpath(%s): %s\n", subdir, strerror(errno));
+ } else {
+ fprintf(stdout, "realpath(%s) = %s\n", subdir, respath);
+ }
+
+ ret = glfs_chdir(fs, subdir);
+ if (ret) {
+ fprintf(stderr, "chdir(%s): %s\n", subdir, strerror(errno));
+ return -1;
+ }
+
+ respath = glfs_getcwd(fs, pathbuf, 4096);
+ fprintf(stdout, "getcwd() = %s\n", respath);
+
+ respath = glfs_realpath(fs, "/linkdir/subdir", pathbuf);
+ if (!respath) {
+ fprintf(stderr, "realpath(/linkdir/subdir): %s\n", strerror(errno));
+ } else {
+ fprintf(stdout, "realpath(/linkdir/subdir) = %s\n", respath);
+ }
+
+ return 0;
+}
+
+#ifdef DEBUG
+static void
+peek_stat(struct stat *sb)
+{
+ printf("Dumping stat information:\n");
+ printf("File type: ");
+
+ switch (sb->st_mode & S_IFMT) {
+ case S_IFBLK:
+ printf("block device\n");
+ break;
+ case S_IFCHR:
+ printf("character device\n");
+ break;
+ case S_IFDIR:
+ printf("directory\n");
+ break;
+ case S_IFIFO:
+ printf("FIFO/pipe\n");
+ break;
+ case S_IFLNK:
+ printf("symlink\n");
+ break;
+ case S_IFREG:
+ printf("regular file\n");
+ break;
+ case S_IFSOCK:
+ printf("socket\n");
+ break;
+ default:
+ printf("unknown?\n");
+ break;
+ }
+
+ printf("I-node number: %ld\n", (long)sb->st_ino);
+
+ printf("Mode: %lo (octal)\n",
+ (unsigned long)sb->st_mode);
+
+ printf("Link count: %ld\n", (long)sb->st_nlink);
+ printf("Ownership: UID=%ld GID=%ld\n", (long)sb->st_uid,
+ (long)sb->st_gid);
+
+ printf("Preferred I/O block size: %ld bytes\n", (long)sb->st_blksize);
+ printf("File size: %lld bytes\n", (long long)sb->st_size);
+ printf("Blocks allocated: %lld\n", (long long)sb->st_blocks);
+
+ printf("Last status change: %s", ctime(&sb->st_ctime));
+ printf("Last file access: %s", ctime(&sb->st_atime));
+ printf("Last file modification: %s", ctime(&sb->st_mtime));
+
+ return;
+}
+
+static void
+peek_handle(unsigned char *glid)
+{
+ int i;
+
+ for (i = 0; i < GFAPI_HANDLE_LENGTH; i++) {
+ printf(":%02x:", glid[i]);
+ }
+ printf("\n");
+}
+#else /* DEBUG */
+static void
+peek_stat(struct stat *sb)
+{
+ return;
+}
+
+static void
+peek_handle(unsigned char *id)
+{
+ return;
+}
+#endif /* DEBUG */
+
+glfs_t *fs = NULL;
+char *full_parent_name = "/testdir", *parent_name = "testdir";
+
+void
+test_h_unlink(void)
+{
+ char *my_dir = "unlinkdir";
+ char *my_file = "file.txt";
+ char *my_subdir = "dir1";
+ struct glfs_object *parent = NULL, *leaf = NULL, *dir = NULL,
+ *subdir = NULL, *subleaf = NULL;
+ struct stat sb;
+ int ret;
+
+ printf("glfs_h_unlink tests: In Progress\n");
+
+ /* Prepare tests */
+ parent = glfs_h_lookupat(fs, NULL, full_parent_name, &sb, 0);
+ if (parent == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ full_parent_name, NULL, strerror(errno));
+ printf("glfs_h_lookupat tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ dir = glfs_h_mkdir(fs, parent, my_dir, 0755, &sb);
+ if (dir == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error creating %s: from (%p),%s\n",
+ my_dir, parent, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+
+ leaf = glfs_h_creat(fs, dir, my_file, O_CREAT, 0644, &sb);
+ if (leaf == NULL) {
+ fprintf(stderr, "glfs_h_creat: error creating %s: from (%p),%s\n",
+ my_file, dir, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+
+ subdir = glfs_h_mkdir(fs, dir, my_subdir, 0755, &sb);
+ if (subdir == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error creating %s: from (%p),%s\n",
+ my_subdir, dir, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+
+ subleaf = glfs_h_creat(fs, subdir, my_file, O_CREAT, 0644, &sb);
+ if (subleaf == NULL) {
+ fprintf(stderr, "glfs_h_creat: error creating %s: from (%p),%s\n",
+ my_file, subdir, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+
+ /* unlink non empty directory */
+ ret = glfs_h_unlink(fs, dir, my_subdir);
+ if ((ret && errno != ENOTEMPTY) || (ret == 0)) {
+ fprintf(stderr,
+ "glfs_h_unlink: error unlinking %s: it is non empty: %s\n",
+ my_subdir, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+
+ /* unlink regular file */
+ ret = glfs_h_unlink(fs, subdir, my_file);
+ if (ret) {
+ fprintf(stderr, "glfs_h_unlink: error unlinking %s: from (%p),%s\n",
+ my_file, subdir, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+
+ /* unlink directory */
+ ret = glfs_h_unlink(fs, dir, my_subdir);
+ if (ret) {
+ fprintf(stderr, "glfs_h_unlink: error unlinking %s: from (%p),%s\n",
+ my_subdir, dir, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+
+ /* unlink regular file */
+ ret = glfs_h_unlink(fs, dir, my_file);
+ if (ret) {
+ fprintf(stderr, "glfs_h_unlink: error unlinking %s: from (%p),%s\n",
+ my_file, dir, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+
+ /* unlink non-existent regular file */
+ ret = glfs_h_unlink(fs, dir, my_file);
+ if ((ret && errno != ENOENT) || (ret == 0)) {
+ fprintf(stderr,
+ "glfs_h_unlink: error unlinking non-existent %s: invalid errno "
+ ",%d, %s\n",
+ my_file, ret, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+
+ /* unlink non-existent directory */
+ ret = glfs_h_unlink(fs, dir, my_subdir);
+ if ((ret && errno != ENOENT) || (ret == 0)) {
+ fprintf(stderr,
+ "glfs_h_unlink: error unlinking non-existent %s: invalid "
+ "errno ,%d, %s\n",
+ my_subdir, ret, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+
+ /* unlink directory */
+ ret = glfs_h_unlink(fs, parent, my_dir);
+ if (ret) {
+ fprintf(stderr, "glfs_h_unlink: error unlinking %s: from (%p),%s\n",
+ my_dir, dir, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+
+ printf("glfs_h_unlink tests: PASSED\n");
+
+out:
+ if (dir)
+ glfs_h_close(dir);
+ if (leaf)
+ glfs_h_close(leaf);
+ if (subdir)
+ glfs_h_close(subdir);
+ if (subleaf)
+ glfs_h_close(subleaf);
+ if (parent)
+ glfs_h_close(parent);
+
+ return;
+}
+
+void
+test_h_getsetattrs(void)
+{
+ char *my_dir = "attrdir";
+ char *my_file = "attrfile.txt";
+ struct glfs_object *parent = NULL, *leaf = NULL, *dir = NULL;
+ struct stat sb, retsb;
+ int ret, valid;
+ struct timespec timestamp;
+
+ printf("glfs_h_getattrs and setattrs tests: In Progress\n");
+
+ /* Prepare tests */
+ parent = glfs_h_lookupat(fs, NULL, full_parent_name, &sb, 0);
+ if (parent == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ full_parent_name, NULL, strerror(errno));
+ printf("glfs_h_lookupat tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ dir = glfs_h_mkdir(fs, parent, my_dir, 0755, &sb);
+ if (dir == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error creating %s: from (%p),%s\n",
+ my_dir, parent, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ leaf = glfs_h_creat(fs, dir, my_file, O_CREAT, 0644, &sb);
+ if (leaf == NULL) {
+ fprintf(stderr, "glfs_h_creat: error creating %s: from (%p),%s\n",
+ my_file, dir, strerror(errno));
+ printf("glfs_h_unlink tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ ret = glfs_h_getattrs(fs, dir, &retsb);
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_getattrs: error %s: from (%p),%s\n", my_dir,
+ dir, strerror(errno));
+ printf("glfs_h_getattrs and setattrs tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&retsb);
+ /* TODO: Compare stat information */
+
+ retsb.st_mode = 00666;
+ retsb.st_uid = 1000;
+ retsb.st_gid = 1001;
+ ret = clock_gettime(CLOCK_REALTIME, &timestamp);
+ if (ret != 0) {
+ fprintf(stderr, "clock_gettime: error %s\n", strerror(errno));
+ printf("glfs_h_getattrs and setattrs tests: FAILED\n");
+ goto out;
+ }
+ retsb.st_atim = timestamp;
+ retsb.st_mtim = timestamp;
+ valid = GFAPI_SET_ATTR_MODE | GFAPI_SET_ATTR_UID | GFAPI_SET_ATTR_GID |
+ GFAPI_SET_ATTR_ATIME | GFAPI_SET_ATTR_MTIME;
+ peek_stat(&retsb);
+
+ ret = glfs_h_setattrs(fs, dir, &retsb, valid);
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_setattrs: error %s: from (%p),%s\n", my_dir,
+ dir, strerror(errno));
+ printf("glfs_h_getattrs and setattrs tests: FAILED\n");
+ goto out;
+ }
+
+ memset(&retsb, 0, sizeof(struct stat));
+ ret = glfs_h_stat(fs, dir, &retsb);
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_stat: error %s: from (%p),%s\n", my_dir, dir,
+ strerror(errno));
+ printf("glfs_h_getattrs and setattrs tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&retsb);
+
+ printf("glfs_h_getattrs and setattrs tests: PASSED\n");
+out:
+ if (parent)
+ glfs_h_close(parent);
+ if (leaf)
+ glfs_h_close(leaf);
+ if (dir)
+ glfs_h_close(dir);
+
+ return;
+}
+
+void
+test_h_truncate(void)
+{
+ char *my_dir = "truncatedir";
+ char *my_file = "file.txt";
+ struct glfs_object *root = NULL, *parent = NULL, *leaf = NULL;
+ struct stat sb;
+ glfs_fd_t *fd = NULL;
+ char buf[32];
+ off_t offset = 0;
+ int ret = 0;
+
+ printf("glfs_h_truncate tests: In Progress\n");
+
+ /* Prepare tests */
+ root = glfs_h_lookupat(fs, NULL, full_parent_name, &sb, 0);
+ if (root == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ full_parent_name, NULL, strerror(errno));
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ parent = glfs_h_mkdir(fs, root, my_dir, 0755, &sb);
+ if (parent == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error creating %s: from (%p),%s\n",
+ my_dir, root, strerror(errno));
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ leaf = glfs_h_creat(fs, parent, my_file, O_CREAT, 0644, &sb);
+ if (leaf == NULL) {
+ fprintf(stderr, "glfs_h_creat: error creating %s: from (%p),%s\n",
+ my_file, parent, strerror(errno));
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ fd = glfs_h_open(fs, leaf, O_RDWR);
+ if (fd == NULL) {
+ fprintf(stderr, "glfs_h_open: error on open of %s: %s\n", my_file,
+ strerror(errno));
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+
+ memcpy(buf, "abcdefghijklmnopqrstuvwxyz012345", 32);
+ ret = glfs_write(fd, buf, 32, 0);
+
+ /* run tests */
+ /* truncate lower */
+ offset = 30;
+ ret = glfs_h_truncate(fs, leaf, offset);
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_truncate: error creating %s: from (%p),%s\n",
+ my_file, parent, strerror(errno));
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+ ret = glfs_h_getattrs(fs, leaf, &sb);
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_getattrs: error for %s (%p),%s\n", my_file,
+ leaf, strerror(errno));
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+ if (sb.st_size != offset) {
+ fprintf(stderr, "glfs_h_truncate: post size mismatch\n");
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+
+ /* truncate higher */
+ offset = 32;
+ ret = glfs_h_truncate(fs, leaf, offset);
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_truncate: error creating %s: from (%p),%s\n",
+ my_file, parent, strerror(errno));
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+ ret = glfs_h_getattrs(fs, leaf, &sb);
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_getattrs: error for %s (%p),%s\n", my_file,
+ leaf, strerror(errno));
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+ if (sb.st_size != offset) {
+ fprintf(stderr, "glfs_h_truncate: post size mismatch\n");
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+
+ /* truncate equal */
+ offset = 30;
+ ret = glfs_h_truncate(fs, leaf, offset);
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_truncate: error creating %s: from (%p),%s\n",
+ my_file, parent, strerror(errno));
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+ ret = glfs_h_getattrs(fs, leaf, &sb);
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_getattrs: error for %s (%p),%s\n", my_file,
+ leaf, strerror(errno));
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+ if (sb.st_size != offset) {
+ fprintf(stderr, "glfs_h_truncate: post size mismatch\n");
+ printf("glfs_h_truncate tests: FAILED\n");
+ goto out;
+ }
+
+ printf("glfs_h_truncate tests: PASSED\n");
+out:
+ if (fd)
+ glfs_close(fd);
+ if (root)
+ glfs_h_close(root);
+ if (parent)
+ glfs_h_close(parent);
+ if (leaf)
+ glfs_h_close(leaf);
+
+ return;
+}
+
+void
+test_h_links(void)
+{
+ char *my_dir = "linkdir";
+ char *my_file = "file.txt";
+ char *my_symlnk = "slnk.txt";
+ char *my_lnk = "lnk.txt";
+ char *linksrc_dir = "dir1";
+ char *linktgt_dir = "dir2";
+ struct glfs_object *root = NULL, *parent = NULL, *leaf = NULL,
+ *dirsrc = NULL, *dirtgt = NULL, *dleaf = NULL;
+ struct glfs_object *ln1 = NULL;
+ struct stat sb;
+ int ret;
+ char *buf = NULL;
+
+ printf("glfs_h_link(s) tests: In Progress\n");
+
+ /* Prepare tests */
+ root = glfs_h_lookupat(fs, NULL, full_parent_name, &sb, 0);
+ if (root == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ full_parent_name, NULL, strerror(errno));
+ printf("glfs_h_link(s) tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ parent = glfs_h_mkdir(fs, root, my_dir, 0755, &sb);
+ if (parent == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error creating %s: from (%p),%s\n",
+ my_dir, root, strerror(errno));
+ printf("glfs_h_link(s) tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ leaf = glfs_h_creat(fs, parent, my_file, O_CREAT, 0644, &sb);
+ if (leaf == NULL) {
+ fprintf(stderr, "glfs_h_creat: error creating %s: from (%p),%s\n",
+ my_file, parent, strerror(errno));
+ printf("glfs_h_link(s) tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ dirsrc = glfs_h_mkdir(fs, parent, linksrc_dir, 0755, &sb);
+ if (dirsrc == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error creating %s: from (%p),%s\n",
+ linksrc_dir, parent, strerror(errno));
+ printf("glfs_h_link(s) tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ dirtgt = glfs_h_mkdir(fs, parent, linktgt_dir, 0755, &sb);
+ if (dirtgt == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error creating %s: from (%p),%s\n",
+ linktgt_dir, parent, strerror(errno));
+ printf("glfs_h_link(s) tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ dleaf = glfs_h_creat(fs, dirsrc, my_file, O_CREAT, 0644, &sb);
+ if (dleaf == NULL) {
+ fprintf(stderr, "glfs_h_creat: error creating %s: from (%p),%s\n",
+ my_file, dirsrc, strerror(errno));
+ printf("glfs_h_link(s) tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ /* run tests */
+ /* sym link: /testdir/linkdir/file.txt to ./slnk.txt */
+ ln1 = glfs_h_symlink(fs, parent, my_symlnk, "./file.txt", &sb);
+ if (ln1 == NULL) {
+ fprintf(stderr, "glfs_h_symlink: error creating %s: from (%p),%s\n",
+ my_symlnk, parent, strerror(errno));
+ printf("glfs_h_link(s) tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ buf = calloc(1024, sizeof(char));
+ if (buf == NULL) {
+ fprintf(stderr, "Error allocating memory\n");
+ printf("glfs_h_link(s) tests: FAILED\n");
+ goto out;
+ }
+
+ ret = glfs_h_readlink(fs, ln1, buf, 1024);
+ if (ret <= 0) {
+ fprintf(stderr, "glfs_h_readlink: error reading %s: from (%p),%s\n",
+ my_symlnk, ln1, strerror(errno));
+ printf("glfs_h_link(s) tests: FAILED\n");
+ goto out;
+ }
+ if (!(strncmp(buf, my_symlnk, strlen(my_symlnk)))) {
+ fprintf(stderr,
+ "glfs_h_readlink: error mismatch in link name: actual %s: "
+ "retrieved %s\n",
+ my_symlnk, buf);
+ printf("glfs_h_link(s) tests: FAILED\n");
+ goto out;
+ }
+
+ /* link: /testdir/linkdir/file.txt to ./lnk.txt */
+ ret = glfs_h_link(fs, leaf, parent, my_lnk);
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_link: error creating %s: from (%p),%s\n",
+ my_lnk, parent, strerror(errno));
+ printf("glfs_h_link(s) tests: FAILED\n");
+ goto out;
+ }
+ /* TODO: Should write content to a file and read from the link */
+
+ /* link: /testdir/linkdir/dir1/file.txt to ../dir2/slnk.txt */
+ ret = glfs_h_link(fs, dleaf, dirtgt, my_lnk);
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_link: error creating %s: from (%p),%s\n",
+ my_lnk, dirtgt, strerror(errno));
+ printf("glfs_h_link(s) tests: FAILED\n");
+ goto out;
+ }
+ /* TODO: Should write content to a file and read from the link */
+
+ printf("glfs_h_link(s) tests: PASSED\n");
+
+out:
+ if (root)
+ glfs_h_close(root);
+ if (parent)
+ glfs_h_close(parent);
+ if (leaf)
+ glfs_h_close(leaf);
+ if (dirsrc)
+ glfs_h_close(dirsrc);
+ if (dirtgt)
+ glfs_h_close(dirtgt);
+ if (dleaf)
+ glfs_h_close(dleaf);
+ if (ln1)
+ glfs_h_close(ln1);
+ if (buf)
+ free(buf);
+
+ return;
+}
+
+void
+test_h_rename(void)
+{
+ char *my_dir = "renamedir";
+ char *my_file = "file.txt";
+ char *src_dir = "dir1";
+ char *tgt_dir = "dir2";
+ struct glfs_object *root = NULL, *parent = NULL, *leaf = NULL,
+ *dirsrc = NULL, *dirtgt = NULL, *dleaf = NULL;
+ struct stat sb;
+ int ret;
+
+ printf("glfs_h_rename tests: In Progress\n");
+
+ /* Prepare tests */
+ root = glfs_h_lookupat(fs, NULL, full_parent_name, &sb, 0);
+ if (root == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ full_parent_name, NULL, strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ parent = glfs_h_mkdir(fs, root, my_dir, 0755, &sb);
+ if (parent == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error creating %s: from (%p),%s\n",
+ my_dir, root, strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ leaf = glfs_h_creat(fs, parent, my_file, O_CREAT, 0644, &sb);
+ if (leaf == NULL) {
+ fprintf(stderr, "glfs_h_creat: error creating %s: from (%p),%s\n",
+ my_file, parent, strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ dirsrc = glfs_h_mkdir(fs, parent, src_dir, 0755, &sb);
+ if (dirsrc == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error creating %s: from (%p),%s\n",
+ src_dir, parent, strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ dirtgt = glfs_h_mkdir(fs, parent, tgt_dir, 0755, &sb);
+ if (dirtgt == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error creating %s: from (%p),%s\n",
+ tgt_dir, parent, strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ dleaf = glfs_h_creat(fs, dirsrc, my_file, O_CREAT, 0644, &sb);
+ if (dleaf == NULL) {
+ fprintf(stderr, "glfs_h_creat: error creating %s: from (%p),%s\n",
+ my_file, dirsrc, strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ /* run tests */
+ /* Rename file.txt -> file1.txt */
+ ret = glfs_h_rename(fs, parent, "file.txt", parent, "file1.txt");
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_rename: error renaming %s to %s (%s)\n",
+ "file.txt", "file1.txt", strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+
+ /* rename dir1/file.txt -> file.txt */
+ ret = glfs_h_rename(fs, dirsrc, "file.txt", parent, "file.txt");
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_rename: error renaming %s/%s to %s (%s)\n",
+ src_dir, "file.txt", "file.txt", strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+
+ /* rename file1.txt -> file.txt (exists) */
+ ret = glfs_h_rename(fs, parent, "file1.txt", parent, "file.txt");
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_rename: error renaming %s to %s (%s)\n",
+ "file.txt", "file.txt", strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+
+ /* rename dir1 -> dir3 */
+ ret = glfs_h_rename(fs, parent, "dir1", parent, "dir3");
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_rename: error renaming %s to %s (%s)\n", "dir1",
+ "dir3", strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+
+ /* rename dir2 ->dir3 (exists) */
+ ret = glfs_h_rename(fs, parent, "dir2", parent, "dir3");
+ if (ret != 0) {
+ fprintf(stderr, "glfs_h_rename: error renaming %s to %s (%s)\n", "dir2",
+ "dir3", strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+
+ /* rename file.txt -> dir3 (fail) */
+ ret = glfs_h_rename(fs, parent, "file.txt", parent, "dir3");
+ if (ret == 0) {
+ fprintf(stderr, "glfs_h_rename: NO error renaming %s to %s (%s)\n",
+ "file.txt", "dir3", strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+
+ /* rename dir3 -> file.txt (fail) */
+ ret = glfs_h_rename(fs, parent, "dir3", parent, "file.txt");
+ if (ret == 0) {
+ fprintf(stderr, "glfs_h_rename: NO error renaming %s to %s (%s)\n",
+ "dir3", "file.txt", strerror(errno));
+ printf("glfs_h_rename tests: FAILED\n");
+ goto out;
+ }
+
+ printf("glfs_h_rename tests: PASSED\n");
+
+out:
+ if (root)
+ glfs_h_close(root);
+ if (parent)
+ glfs_h_close(parent);
+ if (leaf)
+ glfs_h_close(leaf);
+ if (dirsrc)
+ glfs_h_close(dirsrc);
+ if (dirtgt)
+ glfs_h_close(dirtgt);
+ if (dleaf)
+ glfs_h_close(dleaf);
+
+ return;
+}
+
+void
+assimilatetime(struct timespec *ts, struct timespec ts_st,
+ struct timespec ts_ed)
+{
+ if ((ts_ed.tv_nsec - ts_st.tv_nsec) < 0) {
+ ts->tv_sec += ts_ed.tv_sec - ts_st.tv_sec - 1;
+ ts->tv_nsec += 1000000000 + ts_ed.tv_nsec - ts_st.tv_nsec;
+ } else {
+ ts->tv_sec += ts_ed.tv_sec - ts_st.tv_sec;
+ ts->tv_nsec += ts_ed.tv_nsec - ts_st.tv_nsec;
+ }
+
+ if (ts->tv_nsec > 1000000000) {
+ ts->tv_nsec = ts->tv_nsec - 1000000000;
+ ts->tv_sec += 1;
+ }
+
+ return;
+}
+
+#define MAX_FILES_CREATE 10
+#define MAXPATHNAME 512
+void
+test_h_performance(void)
+{
+ char *my_dir = "perftest", *full_dir_path = "/testdir/perftest";
+ char *my_file = "file_", my_file_name[MAXPATHNAME];
+ struct glfs_object *parent = NULL, *leaf = NULL, *dir = NULL;
+ struct stat sb;
+ int ret, i;
+ struct glfs_fd *fd;
+ struct timespec c_ts = {0, 0}, c_ts_st, c_ts_ed;
+ struct timespec o_ts = {0, 0}, o_ts_st, o_ts_ed;
+
+ printf("glfs_h_performance tests: In Progress\n");
+
+ /* Prepare tests */
+ parent = glfs_h_lookupat(fs, NULL, full_parent_name, &sb, 0);
+ if (parent == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ full_parent_name, NULL, strerror(errno));
+ printf("glfs_h_performance tests: FAILED\n");
+ goto out;
+ }
+
+ dir = glfs_h_mkdir(fs, parent, my_dir, 0755, &sb);
+ if (dir == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error creating %s: from (%p),%s\n",
+ my_dir, parent, strerror(errno));
+ printf("glfs_h_performance tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ /* create performance */
+ ret = clock_gettime(CLOCK_REALTIME, &o_ts_st);
+ if (ret != 0) {
+ fprintf(stderr, "clock_gettime: error %s\n", strerror(errno));
+ printf("glfs_h_getattrs and setattrs tests: FAILED\n");
+ goto out;
+ }
+
+ for (i = 0; i < MAX_FILES_CREATE; i++) {
+ sprintf(my_file_name, "%s%d", my_file, i);
+
+ ret = clock_gettime(CLOCK_REALTIME, &c_ts_st);
+ if (ret != 0) {
+ fprintf(stderr, "clock_gettime: error %s\n", strerror(errno));
+ printf("glfs_h_getattrs and setattrs tests: FAILED\n");
+ goto out;
+ }
+
+ leaf = glfs_h_lookupat(fs, dir, my_file_name, &sb, 0);
+ if (leaf != NULL) {
+ fprintf(stderr, "glfs_h_lookup: exists %s\n", my_file_name);
+ printf("glfs_h_performance tests: FAILED\n");
+ goto out;
+ }
+
+ leaf = glfs_h_creat(fs, dir, my_file_name, O_CREAT, 0644, &sb);
+ if (leaf == NULL) {
+ fprintf(stderr, "glfs_h_creat: error creating %s: from (%p),%s\n",
+ my_file, dir, strerror(errno));
+ printf("glfs_h_performance tests: FAILED\n");
+ goto out;
+ }
+
+ ret = clock_gettime(CLOCK_REALTIME, &c_ts_ed);
+ if (ret != 0) {
+ fprintf(stderr, "clock_gettime: error %s\n", strerror(errno));
+ printf("glfs_h_getattrs and setattrs tests: FAILED\n");
+ goto out;
+ }
+
+ assimilatetime(&c_ts, c_ts_st, c_ts_ed);
+ glfs_h_close(leaf);
+ leaf = NULL;
+ }
+
+ ret = clock_gettime(CLOCK_REALTIME, &o_ts_ed);
+ if (ret != 0) {
+ fprintf(stderr, "clock_gettime: error %s\n", strerror(errno));
+ printf("glfs_h_getattrs and setattrs tests: FAILED\n");
+ goto out;
+ }
+
+ assimilatetime(&o_ts, o_ts_st, o_ts_ed);
+
+ printf("Creation performance (handle based):\n\t# empty files:%d\n",
+ MAX_FILES_CREATE);
+ printf("\tOverall time:\n\t\tSecs:%ld\n\t\tnSecs:%ld\n", o_ts.tv_sec,
+ o_ts.tv_nsec);
+ printf("\tcreate call time time:\n\t\tSecs:%ld\n\t\tnSecs:%ld\n",
+ c_ts.tv_sec, c_ts.tv_nsec);
+
+ /* create using path */
+ c_ts.tv_sec = o_ts.tv_sec = 0;
+ c_ts.tv_nsec = o_ts.tv_nsec = 0;
+
+ sprintf(my_file_name, "%s1", full_dir_path);
+ ret = glfs_mkdir(fs, my_file_name, 0755);
+ if (ret != 0) {
+ fprintf(stderr, "glfs_mkdir: error creating %s: from (%p),%s\n", my_dir,
+ parent, strerror(errno));
+ printf("glfs_h_performance tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ ret = clock_gettime(CLOCK_REALTIME, &o_ts_st);
+ if (ret != 0) {
+ fprintf(stderr, "clock_gettime: error %s\n", strerror(errno));
+ printf("glfs_h_getattrs and setattrs tests: FAILED\n");
+ goto out;
+ }
+
+ for (i = 0; i < MAX_FILES_CREATE; i++) {
+ sprintf(my_file_name, "%s1/%sn%d", full_dir_path, my_file, i);
+
+ ret = clock_gettime(CLOCK_REALTIME, &c_ts_st);
+ if (ret != 0) {
+ fprintf(stderr, "clock_gettime: error %s\n", strerror(errno));
+ printf("glfs_h_getattrs and setattrs tests: FAILED\n");
+ goto out;
+ }
+
+ ret = glfs_stat(fs, my_file_name, &sb);
+ if (ret == 0) {
+ fprintf(stderr, "glfs_stat: exists %s\n", my_file_name);
+ printf("glfs_h_performance tests: FAILED\n");
+ goto out;
+ }
+
+ fd = glfs_creat(fs, my_file_name, O_CREAT, 0644);
+ if (fd == NULL) {
+ fprintf(stderr, "glfs_creat: error creating %s: from (%p),%s\n",
+ my_file, dir, strerror(errno));
+ printf("glfs_h_performance tests: FAILED\n");
+ goto out;
+ }
+
+ ret = clock_gettime(CLOCK_REALTIME, &c_ts_ed);
+ if (ret != 0) {
+ fprintf(stderr, "clock_gettime: error %s\n", strerror(errno));
+ printf("glfs_h_getattrs and setattrs tests: FAILED\n");
+ goto out;
+ }
+
+ assimilatetime(&c_ts, c_ts_st, c_ts_ed);
+ glfs_close(fd);
+ }
+
+ ret = clock_gettime(CLOCK_REALTIME, &o_ts_ed);
+ if (ret != 0) {
+ fprintf(stderr, "clock_gettime: error %s\n", strerror(errno));
+ printf("glfs_h_getattrs and setattrs tests: FAILED\n");
+ goto out;
+ }
+
+ assimilatetime(&o_ts, o_ts_st, o_ts_ed);
+
+ printf("Creation performance (path based):\n\t# empty files:%d\n",
+ MAX_FILES_CREATE);
+ printf("\tOverall time:\n\t\tSecs:%ld\n\t\tnSecs:%ld\n", o_ts.tv_sec,
+ o_ts.tv_nsec);
+ printf("\tcreate call time time:\n\t\tSecs:%ld\n\t\tnSecs:%ld\n",
+ c_ts.tv_sec, c_ts.tv_nsec);
+out:
+ return;
+}
+
+int
+test_handleops(int argc, char *argv[])
+{
+ int ret = 0;
+ glfs_fd_t *fd = NULL;
+ struct stat sb = {
+ 0,
+ };
+ struct glfs_object *root = NULL, *parent = NULL, *leaf = NULL, *tmp = NULL;
+ char readbuf[32], writebuf[32];
+ unsigned char leaf_handle[GFAPI_HANDLE_LENGTH];
+
+ char *full_leaf_name = "/testdir/testfile.txt", *leaf_name = "testfile.txt",
+ *relative_leaf_name = "testdir/testfile.txt";
+ char *leaf_name1 = "testfile1.txt";
+ char *full_newparent_name = "/testdir/dir1", *newparent_name = "dir1";
+ char *full_newnod_name = "/testdir/nod1", *newnod_name = "nod1";
+
+ /* Initialize test area */
+ ret = glfs_mkdir(fs, full_parent_name, 0755);
+ if (ret != 0 && errno != EEXIST) {
+ fprintf(stderr, "%s: (%p) %s\n", full_parent_name, fd, strerror(errno));
+ printf("Test initialization failed on volume %s\n", argv[1]);
+ goto out;
+ } else if (ret != 0) {
+ printf("Found test directory %s to be existing\n", full_parent_name);
+ printf("Cleanup test directory and restart tests\n");
+ goto out;
+ }
+
+ fd = glfs_creat(fs, full_leaf_name, O_CREAT, 0644);
+ if (fd == NULL) {
+ fprintf(stderr, "%s: (%p) %s\n", full_leaf_name, fd, strerror(errno));
+ printf("Test initialization failed on volume %s\n", argv[1]);
+ goto out;
+ }
+ glfs_close(fd);
+
+ printf("Initialized the test area, within volume %s\n", argv[1]);
+
+ /* Handle based APIs test area */
+
+ /* glfs_lookupat test */
+ printf("glfs_h_lookupat tests: In Progress\n");
+ /* start at root of the volume */
+ root = glfs_h_lookupat(fs, NULL, "/", &sb, 0);
+ if (root == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n", "/",
+ NULL, strerror(errno));
+ printf("glfs_h_lookupat tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ /* lookup a parent within root */
+ parent = glfs_h_lookupat(fs, root, parent_name, &sb, 0);
+ if (parent == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ parent_name, root, strerror(errno));
+ printf("glfs_h_lookupat tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ /* lookup a leaf/child within the parent */
+ leaf = glfs_h_lookupat(fs, parent, leaf_name, &sb, 0);
+ if (leaf == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ leaf_name, parent, strerror(errno));
+ printf("glfs_h_lookupat tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ /* reset */
+ glfs_h_close(root);
+ root = NULL;
+ glfs_h_close(leaf);
+ leaf = NULL;
+ glfs_h_close(parent);
+ parent = NULL;
+
+ /* check absolute paths */
+ root = glfs_h_lookupat(fs, NULL, "/", &sb, 0);
+ if (root == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n", "/",
+ NULL, strerror(errno));
+ printf("glfs_h_lookupat tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ parent = glfs_h_lookupat(fs, NULL, full_parent_name, &sb, 0);
+ if (parent == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ full_parent_name, root, strerror(errno));
+ printf("glfs_h_lookupat tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ leaf = glfs_h_lookupat(fs, NULL, full_leaf_name, &sb, 0);
+ if (leaf == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ full_leaf_name, parent, strerror(errno));
+ printf("glfs_h_lookupat tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ /* reset */
+ glfs_h_close(leaf);
+ leaf = NULL;
+
+ /* check multiple component paths */
+ leaf = glfs_h_lookupat(fs, root, relative_leaf_name, &sb, 0);
+ if (leaf == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ relative_leaf_name, parent, strerror(errno));
+ goto out;
+ }
+ peek_stat(&sb);
+
+ /* reset */
+ glfs_h_close(root);
+ root = NULL;
+ glfs_h_close(parent);
+ parent = NULL;
+
+ /* check symlinks in path */
+
+ /* TODO: -ve test cases */
+ /* parent invalid
+ * path invalid
+ * path does not exist after some components
+ * no parent, but relative path
+ * parent and full path? -ve?
+ */
+
+ printf("glfs_h_lookupat tests: PASSED\n");
+
+ /* glfs_openat test */
+ printf("glfs_h_open tests: In Progress\n");
+ fd = glfs_h_open(fs, leaf, O_RDWR);
+ if (fd == NULL) {
+ fprintf(stderr, "glfs_h_open: error on open of %s: %s\n",
+ full_leaf_name, strerror(errno));
+ printf("glfs_h_open tests: FAILED\n");
+ goto out;
+ }
+
+ /* test read/write based on fd */
+ memcpy(writebuf, "abcdefghijklmnopqrstuvwxyz012345", 32);
+ ret = glfs_write(fd, writebuf, 32, 0);
+
+ glfs_lseek(fd, 0, SEEK_SET);
+
+ ret = glfs_read(fd, readbuf, 32, 0);
+ if (memcmp(readbuf, writebuf, 32)) {
+ printf("Failed to read what I wrote: %s %s\n", readbuf, writebuf);
+ glfs_close(fd);
+ printf("glfs_h_open tests: FAILED\n");
+ goto out;
+ }
+
+ glfs_h_close(leaf);
+ leaf = NULL;
+ glfs_close(fd);
+
+ printf("glfs_h_open tests: PASSED\n");
+
+ /* Create tests */
+ printf("glfs_h_creat tests: In Progress\n");
+ parent = glfs_h_lookupat(fs, NULL, full_parent_name, &sb, 0);
+ if (parent == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ full_parent_name, root, strerror(errno));
+ printf("glfs_h_creat tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ leaf = glfs_h_creat(fs, parent, leaf_name1, O_CREAT, 0644, &sb);
+ if (leaf == NULL) {
+ fprintf(stderr, "glfs_h_creat: error on create of %s: from (%p),%s\n",
+ leaf_name1, parent, strerror(errno));
+ printf("glfs_h_creat tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ glfs_h_close(leaf);
+ leaf = NULL;
+
+ leaf = glfs_h_creat(fs, parent, leaf_name1, O_CREAT | O_EXCL, 0644, &sb);
+ if (leaf != NULL || errno != EEXIST) {
+ fprintf(stderr,
+ "glfs_h_creat: existing file, leaf = (%p), errno = %s\n", leaf,
+ strerror(errno));
+ printf("glfs_h_creat tests: FAILED\n");
+ if (leaf != NULL) {
+ glfs_h_close(leaf);
+ leaf = NULL;
+ }
+ }
+
+ tmp = glfs_h_creat(fs, root, parent_name, O_CREAT, 0644, &sb);
+ if (tmp != NULL || !(errno == EISDIR || errno == EINVAL)) {
+ fprintf(stderr, "glfs_h_creat: dir create, tmp = (%p), errno = %s\n",
+ leaf, strerror(errno));
+ printf("glfs_h_creat tests: FAILED\n");
+ if (tmp != NULL) {
+ glfs_h_close(tmp);
+ tmp = NULL;
+ }
+ }
+
+ /* TODO: Other combinations and -ve cases as applicable */
+ printf("glfs_h_creat tests: PASSED\n");
+
+ /* extract handle and create from handle test */
+ printf(
+ "glfs_h_extract_handle and glfs_h_create_from_handle tests: In "
+ "Progress\n");
+ /* TODO: Change the lookup to create below for a GIFD recovery failure,
+ * that needs to be fixed */
+ leaf = glfs_h_lookupat(fs, parent, leaf_name1, &sb, 0);
+ if (leaf == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ leaf_name1, parent, strerror(errno));
+ printf("glfs_h_extract_handle tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ ret = glfs_h_extract_handle(leaf, leaf_handle, GFAPI_HANDLE_LENGTH);
+ if (ret < 0) {
+ fprintf(stderr,
+ "glfs_h_extract_handle: error extracting handle of %s: %s\n",
+ full_leaf_name, strerror(errno));
+ printf("glfs_h_extract_handle tests: FAILED\n");
+ goto out;
+ }
+ peek_handle(leaf_handle);
+
+ glfs_h_close(leaf);
+ leaf = NULL;
+
+ leaf = glfs_h_create_from_handle(fs, leaf_handle, GFAPI_HANDLE_LENGTH, &sb);
+ if (leaf == NULL) {
+ fprintf(
+ stderr,
+ "glfs_h_create_from_handle: error on create of %s: from (%p),%s\n",
+ leaf_name1, leaf_handle, strerror(errno));
+ printf("glfs_h_create_from_handle tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ fd = glfs_h_open(fs, leaf, O_RDWR);
+ if (fd == NULL) {
+ fprintf(stderr, "glfs_h_open: error on open of %s: %s\n",
+ full_leaf_name, strerror(errno));
+ printf("glfs_h_create_from_handle tests: FAILED\n");
+ goto out;
+ }
+
+ /* test read/write based on fd */
+ memcpy(writebuf, "abcdefghijklmnopqrstuvwxyz012345", 32);
+ ret = glfs_write(fd, writebuf, 32, 0);
+
+ glfs_lseek(fd, 0, SEEK_SET);
+
+ ret = glfs_read(fd, readbuf, 32, 0);
+ if (memcmp(readbuf, writebuf, 32)) {
+ printf("Failed to read what I wrote: %s %s\n", writebuf, writebuf);
+ printf("glfs_h_create_from_handle tests: FAILED\n");
+ glfs_close(fd);
+ goto out;
+ }
+
+ glfs_close(fd);
+ glfs_h_close(leaf);
+ leaf = NULL;
+ glfs_h_close(parent);
+ parent = NULL;
+
+ printf(
+ "glfs_h_extract_handle and glfs_h_create_from_handle tests: PASSED\n");
+
+ /* Mkdir tests */
+ printf("glfs_h_mkdir tests: In Progress\n");
+
+ ret = glfs_rmdir(fs, full_newparent_name);
+ if (ret && errno != ENOENT) {
+ fprintf(stderr, "glfs_rmdir: Failed for %s: %s\n", full_newparent_name,
+ strerror(errno));
+ printf("glfs_h_mkdir tests: FAILED\n");
+ goto out;
+ }
+
+ parent = glfs_h_lookupat(fs, NULL, full_parent_name, &sb, 0);
+ if (parent == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ full_parent_name, root, strerror(errno));
+ printf("glfs_h_mkdir tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ leaf = glfs_h_mkdir(fs, parent, newparent_name, 0755, &sb);
+ if (leaf == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error on mkdir of %s: from (%p),%s\n",
+ newparent_name, parent, strerror(errno));
+ printf("glfs_h_mkdir tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ glfs_h_close(leaf);
+ leaf = NULL;
+
+ leaf = glfs_h_mkdir(fs, parent, newparent_name, 0755, &sb);
+ if (leaf != NULL || errno != EEXIST) {
+ fprintf(stderr,
+ "glfs_h_mkdir: existing directory, leaf = (%p), errno = %s\n",
+ leaf, strerror(errno));
+ printf("glfs_h_mkdir tests: FAILED\n");
+ if (leaf != NULL) {
+ glfs_h_close(leaf);
+ leaf = NULL;
+ }
+ }
+
+ glfs_h_close(parent);
+ parent = NULL;
+
+ printf("glfs_h_mkdir tests: PASSED\n");
+
+ /* Mknod tests */
+ printf("glfs_h_mknod tests: In Progress\n");
+ ret = glfs_unlink(fs, full_newnod_name);
+ if (ret && errno != ENOENT) {
+ fprintf(stderr, "glfs_unlink: Failed for %s: %s\n", full_newnod_name,
+ strerror(errno));
+ printf("glfs_h_mknod tests: FAILED\n");
+ goto out;
+ }
+
+ parent = glfs_h_lookupat(fs, NULL, full_parent_name, &sb, 0);
+ if (parent == NULL) {
+ fprintf(stderr,
+ "glfs_h_lookupat: error on lookup of %s: from (%p),%s\n",
+ full_parent_name, root, strerror(errno));
+ printf("glfs_h_mknod tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ leaf = glfs_h_mknod(fs, parent, newnod_name, S_IFIFO, 0, &sb);
+ if (leaf == NULL) {
+ fprintf(stderr, "glfs_h_mkdir: error on mkdir of %s: from (%p),%s\n",
+ newnod_name, parent, strerror(errno));
+ printf("glfs_h_mknod tests: FAILED\n");
+ goto out;
+ }
+ peek_stat(&sb);
+
+ /* TODO: create op on a FIFO node hangs, need to check and fix
+ tmp = glfs_h_creat (fs, parent, newnod_name, O_CREAT, 0644, &sb);
+ if (tmp != NULL || errno != EINVAL) {
+ fprintf (stderr, "glfs_h_creat: node create, tmp = (%p), errno =
+ %s\n", tmp, strerror (errno)); printf ("glfs_h_creat/mknod tests:
+ FAILED\n"); if (tmp != NULL) { glfs_h_close(tmp); tmp = NULL;
+ }
+ } */
+
+ glfs_h_close(leaf);
+ leaf = NULL;
+
+ leaf = glfs_h_mknod(fs, parent, newnod_name, 0644, 0, &sb);
+ if (leaf != NULL || errno != EEXIST) {
+ fprintf(stderr,
+ "glfs_h_mknod: existing node, leaf = (%p), errno = %s\n", leaf,
+ strerror(errno));
+ printf("glfs_h_mknod tests: FAILED\n");
+ if (leaf != NULL) {
+ glfs_h_close(leaf);
+ leaf = NULL;
+ }
+ }
+
+ glfs_h_close(parent);
+ parent = NULL;
+
+ printf("glfs_h_mknod tests: PASSED\n");
+
+ /* unlink tests */
+ test_h_unlink();
+
+ /* TODO: opendir tests */
+
+ /* getattr tests */
+ test_h_getsetattrs();
+
+ /* TODO: setattr tests */
+
+ /* truncate tests */
+ test_h_truncate();
+
+ /* link tests */
+ test_h_links();
+
+ /* rename tests */
+ test_h_rename();
+
+ /* performance tests */
+ test_h_performance();
+
+ /* END: New APIs test area */
+
+out:
+ /* Cleanup glfs handles */
+ if (root)
+ glfs_h_close(root);
+ if (parent)
+ glfs_h_close(parent);
+ if (leaf)
+ glfs_h_close(leaf);
+
+ return ret;
+}
+
+int
+test_write_apis(glfs_t *fs)
+{
+ /* Add more content here */
+ /* Some apis we can get are */
+ /*
+ 0. glfs_set_xlator_option()
+
+ Read/Write combinations:
+ . glfs_{p,}readv/{p,}writev
+ . glfs_pread/pwrite
+
+ tests/basic/gfapi/gfapi-async-calls-test.c
+ . glfs_read_async/write_async
+ . glfs_pread_async/pwrite_async
+ . glfs_readv_async/writev_async
+ . glfs_preadv_async/pwritev_async
+
+ . ftruncate/ftruncate_async
+ . fsync/fsync_async
+ . fdatasync/fdatasync_async
+
+ */
+
+ glfs_fd_t *fd = NULL;
+ char *filename = "/filename2";
+ int flags = O_RDWR;
+ char *buf = "some bytes!";
+ char writestr[TEST_STR_LEN];
+ struct iovec iov = {&writestr, TEST_STR_LEN};
+ int ret, i;
+
+ for (i = 0; i < TEST_STR_LEN; i++)
+ writestr[i] = 0x11;
+
+ fd = glfs_open(fs, filename, flags);
+ if (!fd)
+ fprintf(stderr, "open(%s): (%p) %s\n", filename, fd, strerror(errno));
+
+ ret = glfs_writev(fd, &iov, 1, flags);
+ if (ret < 0) {
+ fprintf(stderr, "writev(%s): %d (%s)\n", filename, ret,
+ strerror(errno));
+ }
+
+ ret = glfs_pwrite(fd, buf, 10, 4, flags, NULL, NULL);
+ if (ret < 0) {
+ fprintf(stderr, "pwrite(%s): %d (%s)\n", filename, ret,
+ strerror(errno));
+ }
+
+ ret = glfs_pwritev(fd, &iov, 1, 4, flags);
+ if (ret < 0) {
+ fprintf(stderr, "pwritev(%s): %d (%s)\n", filename, ret,
+ strerror(errno));
+ }
+
+ return 0;
+}
+
+int
+test_metadata_ops(glfs_t *fs, glfs_t *fs2)
+{
+ glfs_fd_t *fd = NULL;
+ glfs_fd_t *fd2 = NULL;
+ struct stat sb = {
+ 0,
+ };
+ struct glfs_stat gsb = {
+ 0,
+ };
+ struct statvfs sfs;
+ char readbuf[32];
+ char writebuf[32];
+
+ char *filename = "/filename2";
+ int ret;
+
+ ret = glfs_lstat(fs, filename, &sb);
+ fprintf(stderr, "lstat(%s): (%d) %s\n", filename, ret, strerror(errno));
+
+ fd = glfs_creat(fs, filename, O_RDWR, 0644);
+ fprintf(stderr, "creat(%s): (%p) %s\n", filename, fd, strerror(errno));
+
+ fd2 = glfs_open(fs2, filename, O_RDWR);
+ fprintf(stderr, "open(%s): (%p) %s\n", filename, fd, strerror(errno));
+
+ glfs_lseek(fd2, 0, SEEK_SET);
+
+ ret = glfs_read(fd2, readbuf, 32, 0);
+
+ printf("read %d, %s", ret, readbuf);
+
+ /* get stat */
+ ret = glfs_fstat(fd2, &sb);
+
+ ret = glfs_access(fs, filename, R_OK);
+
+ /* set stat */
+ /* TODO: got some errors, need to fix */
+ /* ret = glfs_fsetattr(fd2, &gsb); */
+
+ glfs_close(fd);
+ glfs_close(fd2);
+
+ filename = "/filename3";
+ ret = glfs_mknod(fs, filename, S_IFIFO, 0);
+ fprintf(stderr, "%s: (%d) %s\n", filename, ret, strerror(errno));
+
+ ret = glfs_lstat(fs, filename, &sb);
+ fprintf(stderr, "%s: (%d) %s\n", filename, ret, strerror(errno));
+
+ ret = glfs_rename(fs, filename, "/filename4");
+ fprintf(stderr, "rename(%s): (%d) %s\n", filename, ret, strerror(errno));
+
+ ret = glfs_unlink(fs, "/filename4");
+ fprintf(stderr, "unlink(%s): (%d) %s\n", "/filename4", ret,
+ strerror(errno));
+
+ filename = "/dirname2";
+ ret = glfs_mkdir(fs, filename, 0);
+ fprintf(stderr, "%s: (%d) %s\n", filename, ret, strerror(errno));
+
+ ret = glfs_lstat(fs, filename, &sb);
+ fprintf(stderr, "lstat(%s): (%d) %s\n", filename, ret, strerror(errno));
+
+ ret = glfs_rmdir(fs, filename);
+ fprintf(stderr, "rmdir(%s): (%d) %s\n", filename, ret, strerror(errno));
+}
+int
+main(int argc, char *argv[])
+{
+ glfs_t *fs2 = NULL;
+ int ret = 0;
+ glfs_fd_t *fd = NULL;
+ glfs_fd_t *fd2 = NULL;
+ struct stat sb = {
+ 0,
+ };
+ struct glfs_stat gsb = {
+ 0,
+ };
+ struct statvfs sfs;
+ char readbuf[32];
+ char writebuf[32];
+
+ char *filename = "/filename2";
+
+ if (argc != 3) {
+ printf("Expect following args\n\t%s <volname> <hostname>\n", argv[0]);
+ return -1;
+ }
+
+ fs = glfs_new(argv[1]);
+ if (!fs) {
+ fprintf(stderr, "glfs_new: returned NULL\n");
+ return 1;
+ }
+
+ // ret = glfs_set_volfile (fs, "/tmp/posix.vol");
+
+ ret = glfs_set_volfile_server(fs, "tcp", argv[2], 24007);
+
+ // ret = glfs_set_volfile_server (fs, "unix", "/tmp/gluster.sock", 0);
+
+ ret = glfs_set_logging(fs, "/dev/stderr", 7);
+
+ ret = glfs_init(fs);
+
+ fprintf(stderr, "glfs_init: returned %d\n", ret);
+
+ if (ret)
+ goto out;
+
+ sleep(2);
+
+ fs2 = glfs_new(argv[1]);
+ if (!fs2) {
+ fprintf(stderr, "glfs_new: returned NULL\n");
+ return 1;
+ }
+
+ // ret = glfs_set_volfile (fs2, "/tmp/posix.vol");
+
+ ret = glfs_set_volfile_server(fs2, "tcp", argv[2], 24007);
+
+ ret = glfs_set_logging(fs2, "/dev/stderr", 7);
+
+ ret = glfs_init(fs2);
+
+ fprintf(stderr, "glfs_init: returned %d\n", ret);
+
+ test_metadata_ops(fs, fs2);
+
+ test_dirops(fs);
+
+ test_xattr(fs);
+
+ test_chdir(fs);
+
+ test_handleops(argc, argv);
+ // done
+
+ /* Test some extra apis */
+ test_write_apis(fs);
+
+ glfs_statvfs(fs, "/", &sfs);
+
+ glfs_fini(fs);
+ glfs_fini(fs2);
+
+ ret = 0;
+out:
+ return ret;
+}
diff --git a/api/src/Makefile.am b/api/src/Makefile.am
new file mode 100644
index 00000000000..7f9a7d17b35
--- /dev/null
+++ b/api/src/Makefile.am
@@ -0,0 +1,43 @@
+lib_LTLIBRARIES = libgfapi.la
+noinst_HEADERS = glfs-mem-types.h glfs-internal.h gfapi-messages.h
+libgfapi_HEADERS = glfs.h glfs-handles.h
+libgfapidir = $(includedir)/glusterfs/api
+
+EXTRA_DIST = gfapi.map gfapi.aliases
+
+libgfapi_la_SOURCES = glfs.c glfs-mgmt.c glfs-fops.c glfs-resolve.c \
+ glfs-handleops.c
+libgfapi_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la \
+ $(top_builddir)/rpc/rpc-lib/src/libgfrpc.la \
+ $(top_builddir)/rpc/xdr/src/libgfxdr.la
+
+libgfapi_la_LDFLAGS = -version-info $(GFAPI_LT_VERSION) $(GF_LDFLAGS) \
+ $(GFAPI_EXTRA_LDFLAGS) $(ACL_LIBS)
+
+libgfapi_la_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src \
+ -I$(top_srcdir)/rpc/rpc-lib/src \
+ -I$(top_srcdir)/rpc/xdr/src \
+ -I$(top_builddir)/rpc/xdr/src \
+ -DDATADIR=\"$(localstatedir)\" \
+ -D__USE_FILE_OFFSET64 -D__USE_LARGEFILE64
+
+AM_CFLAGS = -Wall $(GF_CFLAGS)
+
+xlator_LTLIBRARIES = api.la
+xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/mount
+# workaround for broken parallel install support in automake with LTLIBRARIES
+# http://debbugs.gnu.org/cgi/bugreport.cgi?bug=7328
+install_xlatorLTLIBRARIES = install-xlatorLTLIBRARIES
+$(install_xlatorLTLIBRARIES): install-libLTLIBRARIES
+
+api_la_SOURCES = glfs-master.c
+api_la_DEPENDENCIES = libgfapi.la
+api_la_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src \
+ -I$(top_srcdir)/rpc/xdr/src \
+ -I$(top_builddir)/rpc/xdr/src
+api_la_LDFLAGS = -module $(GF_XLATOR_DEFAULT_LDFLAGS)
+#api_la_LDFLAGS = -module $(GF_XLATOR_DEFAULT_LDFLAGS) $(GF_LDFLAGS)
+api_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la \
+ $(top_builddir)/rpc/rpc-lib/src/libgfrpc.la \
+ $(top_builddir)/rpc/xdr/src/libgfxdr.la \
+ $(top_builddir)/api/src/libgfapi.la
diff --git a/api/src/README.Symbol_Versions b/api/src/README.Symbol_Versions
new file mode 100644
index 00000000000..b6ec95f9311
--- /dev/null
+++ b/api/src/README.Symbol_Versions
@@ -0,0 +1,3 @@
+
+See ../../doc/developer-guide/gfapi-symbol-versions.md
+
diff --git a/api/src/gfapi-messages.h b/api/src/gfapi-messages.h
new file mode 100644
index 00000000000..b9223940416
--- /dev/null
+++ b/api/src/gfapi-messages.h
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2015-2018 Red Hat, Inc. <http://www.redhat.com>
+ * This file is part of GlusterFS.
+ *
+ * This file is licensed to you under your choice of the GNU Lesser
+ * General Public License, version 3 or any later version (LGPLv3 or
+ * later), or the GNU General Public License, version 2 (GPLv2), in all
+ * cases as published by the Free Software Foundation.
+ * */
+
+#ifndef _GFAPI_MESSAGES_H__
+#define _GFAPI_MESSAGES_H__
+
+#include <glusterfs/glfs-message-id.h>
+
+/* To add new message IDs, append new identifiers at the end of the list.
+ *
+ * Never remove a message ID. If it's not used anymore, you can rename it or
+ * leave it as it is, but not delete it. This is to prevent reutilization of
+ * IDs by other messages.
+ *
+ * The component name must match one of the entries defined in
+ * glfs-message-id.h.
+ */
+
+GLFS_MSGID(API, API_MSG_MEM_ACCT_INIT_FAILED, API_MSG_MASTER_XLATOR_INIT_FAILED,
+ API_MSG_GFAPI_XLATOR_INIT_FAILED, API_MSG_VOLFILE_OPEN_FAILED,
+ API_MSG_VOL_SPEC_FILE_ERROR, API_MSG_GLFS_FSOBJ_NULL,
+ API_MSG_INVALID_ENTRY, API_MSG_FSMUTEX_LOCK_FAILED,
+ API_MSG_COND_WAIT_FAILED, API_MSG_FSMUTEX_UNLOCK_FAILED,
+ API_MSG_INODE_REFRESH_FAILED, API_MSG_GRAPH_CONSTRUCT_FAILED,
+ API_MSG_API_XLATOR_ERROR, API_MSG_XDR_PAYLOAD_FAILED,
+ API_MSG_GET_VOLINFO_CBK_FAILED, API_MSG_FETCH_VOLUUID_FAILED,
+ API_MSG_INSUFF_SIZE, API_MSG_FRAME_CREAT_FAILED,
+ API_MSG_DICT_SET_FAILED, API_MSG_XDR_DECODE_FAILED,
+ API_MSG_GET_VOLFILE_FAILED, API_MSG_WRONG_OPVERSION,
+ API_MSG_DICT_SERIALIZE_FAILED, API_MSG_REMOTE_HOST_CONN_FAILED,
+ API_MSG_VOLFILE_SERVER_EXHAUST, API_MSG_CREATE_RPC_CLIENT_FAILED,
+ API_MSG_REG_NOTIFY_FUNC_FAILED, API_MSG_REG_CBK_FUNC_FAILED,
+ API_MSG_GET_CWD_FAILED, API_MSG_FGETXATTR_FAILED,
+ API_MSG_LOCKINFO_KEY_MISSING, API_MSG_FSETXATTR_FAILED,
+ API_MSG_FSYNC_FAILED, API_MSG_FDCREATE_FAILED,
+ API_MSG_INODE_PATH_FAILED, API_MSG_SYNCOP_OPEN_FAILED,
+ API_MSG_LOCK_MIGRATE_FAILED, API_MSG_OPENFD_SKIPPED,
+ API_MSG_FIRST_LOOKUP_GRAPH_FAILED, API_MSG_CWD_GRAPH_REF_FAILED,
+ API_MSG_SWITCHED_GRAPH, API_MSG_XDR_RESPONSE_DECODE_FAILED,
+ API_MSG_VOLFILE_INFO, API_MSG_VOLFILE_CONNECTING, API_MSG_NEW_GRAPH,
+ API_MSG_ALLOC_FAILED, API_MSG_CREATE_HANDLE_FAILED,
+ API_MSG_INODE_LINK_FAILED, API_MSG_STATEDUMP_FAILED,
+ API_MSG_XREADDIRP_R_FAILED, API_MSG_LOCK_INSERT_MERGE_FAILED,
+ API_MSG_SETTING_LOCK_TYPE_FAILED, API_MSG_INODE_FIND_FAILED,
+ API_MSG_FDCTX_SET_FAILED, API_MSG_UPCALL_SYNCOP_FAILED,
+ API_MSG_INVALID_ARG, API_MSG_UPCALL_EVENT_NULL_RECEIVED,
+ API_MSG_FLAGS_HANDLE, API_MSG_FDCREATE_FAILED_ON_GRAPH,
+ API_MSG_TRANS_RDMA_DEP, API_MSG_TRANS_NOT_SUPPORTED,
+ API_MSG_FS_NOT_INIT, API_MSG_INVALID_SYSRQ,
+ API_MSG_DECODE_XDR_FAILED, API_MSG_NULL, API_MSG_CALL_NOT_SUCCESSFUL,
+ API_MSG_CALL_NOT_VALID, API_MSG_UNABLE_TO_DEL,
+ API_MSG_REMOTE_HOST_DISCONN, API_MSG_HANDLE_NOT_SET);
+
+#define API_MSG_ALLOC_FAILED_STR "Upcall allocation failed"
+#define API_MSG_LOCK_INSERT_MERGE_FAILED_STR \
+ "Lock insertion and splitting/merging failed"
+#define API_MSG_SETTING_LOCK_TYPE_FAILED_STR "Setting lock type failed"
+
+#define API_MSG_INVALID_ARG_STR "Invalid"
+#define API_MSG_INVALID_ENTRY_STR "Upcall entry validation failed"
+#define API_MSG_INODE_FIND_FAILED_STR "Unable to find inode entry"
+#define API_MSG_CREATE_HANDLE_FAILED_STR "handle creation failed"
+#define API_MSG_UPCALL_EVENT_NULL_RECEIVED_STR \
+ "Upcall_EVENT_NULL received. Skipping it"
+#define API_MSG_UPCALL_SYNCOP_FAILED_STR "Synctask for upcall failed"
+#define API_MSG_FDCREATE_FAILED_STR "Allocating anonymous fd failed"
+#define API_MSG_XREADDIRP_R_FAILED_STR "glfs_x_readdirp_r failed"
+#define API_MSG_FDCTX_SET_FAILED_STR "Setting fd ctx failed"
+#define API_MSG_FLAGS_HANDLE_STR "arg not set. Flags handled are"
+#define API_MSG_INODE_REFRESH_FAILED_STR "inode refresh failed"
+#define API_MSG_INODE_LINK_FAILED_STR "inode linking failed"
+#define API_MSG_GET_CWD_FAILED_STR "Failed to get cwd"
+#define API_MSG_FGETXATTR_FAILED_STR "fgetxattr failed"
+#define API_MSG_LOCKINFO_KEY_MISSING_STR "missing lockinfo key"
+#define API_MSG_FSYNC_FAILED_STR "fsync() failed"
+#define API_MSG_FDCREATE_FAILED_ON_GRAPH_STR "fd_create failed on graph"
+#define API_MSG_INODE_PATH_FAILED_STR "inode_path failed"
+#define API_MSG_SYNCOP_OPEN_FAILED_STR "syncop_open failed"
+#define API_MSG_LOCK_MIGRATE_FAILED_STR "lock migration failed on graph"
+#define API_MSG_OPENFD_SKIPPED_STR "skipping openfd in graph"
+#define API_MSG_FIRST_LOOKUP_GRAPH_FAILED_STR "first lookup on graph failed"
+#define API_MSG_CWD_GRAPH_REF_FAILED_STR "cwd refresh of graph failed"
+#define API_MSG_SWITCHED_GRAPH_STR "switched to graph"
+#define API_MSG_FSETXATTR_FAILED_STR "fsetxattr failed"
+#define API_MSG_MEM_ACCT_INIT_FAILED_STR "Memory accounting init failed"
+#define API_MSG_MASTER_XLATOR_INIT_FAILED_STR \
+ "master xlator for initialization failed"
+#define API_MSG_GFAPI_XLATOR_INIT_FAILED_STR \
+ "failed to initialize gfapi translator"
+#define API_MSG_VOLFILE_OPEN_FAILED_STR "volume file open failed"
+#define API_MSG_VOL_SPEC_FILE_ERROR_STR "Cannot reach volume specification file"
+#define API_MSG_TRANS_RDMA_DEP_STR \
+ "transport RDMA is deprecated, falling back to tcp"
+#define API_MSG_TRANS_NOT_SUPPORTED_STR \
+ "transport is not supported, possible values tcp|unix"
+#define API_MSG_GLFS_FSOBJ_NULL_STR "fs is NULL"
+#define API_MSG_FS_NOT_INIT_STR "fs is not properly initialized"
+#define API_MSG_FSMUTEX_LOCK_FAILED_STR \
+ "pthread lock on glfs mutex, returned error"
+#define API_MSG_FSMUTEX_UNLOCK_FAILED_STR \
+ "pthread unlock on glfs mutex, returned error"
+#define API_MSG_COND_WAIT_FAILED_STR "cond wait failed"
+#define API_MSG_INVALID_SYSRQ_STR "not a valid sysrq"
+#define API_MSG_GRAPH_CONSTRUCT_FAILED_STR "failed to construct the graph"
+#define API_MSG_API_XLATOR_ERROR_STR \
+ "api master xlator cannot be specified in volume file"
+#define API_MSG_STATEDUMP_FAILED_STR "statedump failed"
+#define API_MSG_DECODE_XDR_FAILED_STR \
+ "Failed to decode xdr response for GF_CBK_STATEDUMP"
+#define API_MSG_NULL_STR "NULL"
+#define API_MSG_XDR_PAYLOAD_FAILED_STR "failed to create XDR payload"
+#define API_MSG_CALL_NOT_SUCCESSFUL_STR \
+ "GET_VOLUME_INFO RPC call is not successful"
+#define API_MSG_XDR_RESPONSE_DECODE_FAILED_STR \
+ "Failed to decode xdr response for GET_VOLUME_INFO"
+#define API_MSG_CALL_NOT_VALID_STR \
+ "Response received for GET_VOLUME_INFO RPC is not valid"
+#define API_MSG_GET_VOLINFO_CBK_FAILED_STR \
+ "In GET_VOLUME_INFO cbk, received error"
+#define API_MSG_FETCH_VOLUUID_FAILED_STR "Unable to fetch volume UUID"
+#define API_MSG_INSUFF_SIZE_STR "Insufficient size passed"
+#define API_MSG_FRAME_CREAT_FAILED_STR "failed to create the frame"
+#define API_MSG_DICT_SET_FAILED_STR "failed to set"
+#define API_MSG_XDR_DECODE_FAILED_STR "XDR decoding error"
+#define API_MSG_GET_VOLFILE_FAILED_STR "failed to get the volume file"
+#define API_MSG_VOLFILE_INFO_STR "No change in volfile, continuing"
+#define API_MSG_UNABLE_TO_DEL_STR "unable to delete file"
+#define API_MSG_WRONG_OPVERSION_STR \
+ "Server is operating at an op-version which is not supported"
+#define API_MSG_DICT_SERIALIZE_FAILED_STR "Failed to serialize dictionary"
+#define API_MSG_REMOTE_HOST_CONN_FAILED_STR "Failed to connect to remote-host"
+#define API_MSG_REMOTE_HOST_DISCONN_STR "disconnected from remote-host"
+#define API_MSG_VOLFILE_SERVER_EXHAUST_STR "Exhausted all volfile servers"
+#define API_MSG_VOLFILE_CONNECTING_STR "connecting to next volfile server"
+#define API_MSG_CREATE_RPC_CLIENT_FAILED_STR "failed to create rpc clnt"
+#define API_MSG_REG_NOTIFY_FUNC_FAILED_STR "failed to register notify function"
+#define API_MSG_REG_CBK_FUNC_FAILED_STR "failed to register callback function"
+#define API_MSG_NEW_GRAPH_STR "New graph coming up"
+#define API_MSG_HANDLE_NOT_SET_STR "handle not set. Flags handled for xstat are"
+#endif /* !_GFAPI_MESSAGES_H__ */
diff --git a/api/src/gfapi.aliases b/api/src/gfapi.aliases
new file mode 100644
index 00000000000..bc639e6b99f
--- /dev/null
+++ b/api/src/gfapi.aliases
@@ -0,0 +1,201 @@
+
+_priv_glfs_loc_touchup _glfs_loc_touchup$GFAPI_PRIVATE_3.4.0
+_priv_glfs_active_subvol _glfs_active_subvol$GFAPI_PRIVATE_3.4.0
+_priv_glfs_subvol_done _glfs_subvol_done$GFAPI_PRIVATE_3.4.0
+_priv_glfs_init_done _glfs_init_done$GFAPI_PRIVATE_3.4.0
+_priv_glfs_resolve_at _glfs_resolve_at$GFAPI_PRIVATE_3.4.0
+
+_pub_glfs_new _glfs_new$GFAPI_3.4.0
+_pub_glfs_set_volfile _glfs_set_volfile$GFAPI_3.4.0
+_pub_glfs_set_volfile_server _glfs_set_volfile_server$GFAPI_3.4.0
+_pub_glfs_set_logging _glfs_set_logging$GFAPI_3.4.0
+_pub_glfs_init _glfs_init$GFAPI_3.4.0
+_pub_glfs_fini _glfs_fini$GFAPI_3.4.0
+_pub_glfs_open _glfs_open$GFAPI_3.4.0
+_pub_glfs_creat _glfs_creat$GFAPI_3.4.0
+_pub_glfs_close _glfs_close$GFAPI_3.4.0
+_pub_glfs_from_glfd _glfs_from_glfd$GFAPI_3.4.0
+_pub_glfs_set_xlator_option _glfs_set_xlator_option$GFAPI_3.4.0
+_pub_glfs_read _glfs_read$GFAPI_3.4.0
+_pub_glfs_write _glfs_write$GFAPI_3.4.0
+_pub_glfs_readv _glfs_readv$GFAPI_3.4.0
+_pub_glfs_writev _glfs_writev$GFAPI_3.4.0
+_pub_glfs_pread34 _glfs_pread$GFAPI_3.4.0
+_pub_glfs_pwrite34 _glfs_pwrite$GFAPI_3.4.0
+_pub_glfs_pread_async34 _glfs_pread_async$GFAPI_3.4.0
+_pub_glfs_pwrite_async34 _glfs_pwrite_async$GFAPI_3.4.0
+_pub_glfs_preadv _glfs_preadv$GFAPI_3.4.0
+_pub_glfs_pwritev _glfs_pwritev$GFAPI_3.4.0
+_pub_glfs_lseek _glfs_lseek$GFAPI_3.4.0
+_pub_glfs_ftruncate34 _glfs_ftruncate$GFAPI_3.4.0
+_pub_glfs_ftruncate_async34 _glfs_ftruncate_async$GFAPI_3.4.0
+_pub_glfs_lstat _glfs_lstat$GFAPI_3.4.0
+_pub_glfs_stat _glfs_stat$GFAPI_3.4.0
+_pub_glfs_fstat _glfs_fstat$GFAPI_3.4.0
+_pub_glfs_fsync34 _glfs_fsync$GFAPI_3.4.0
+_pub_glfs_fsync_async34 _glfs_fsync_async$GFAPI_3.4.0
+_pub_glfs_fdatasync34 _glfs_fdatasync$GFAPI_3.4.0
+_pub_glfs_fdatasync_async34 _glfs_fdatasync_async$GFAPI_3.4.0
+_pub_glfs_access _glfs_access$GFAPI_3.4.0
+_pub_glfs_symlink _glfs_symlink$GFAPI_3.4.0
+_pub_glfs_readlink _glfs_readlink$GFAPI_3.4.0
+_pub_glfs_mknod _glfs_mknod$GFAPI_3.4.0
+_pub_glfs_mkdir _glfs_mkdir$GFAPI_3.4.0
+_pub_glfs_unlink _glfs_unlink$GFAPI_3.4.0
+_pub_glfs_rmdir _glfs_rmdir$GFAPI_3.4.0
+_pub_glfs_rename _glfs_rename$GFAPI_3.4.0
+_pub_glfs_link _glfs_link$GFAPI_3.4.0
+_pub_glfs_opendir _glfs_opendir$GFAPI_3.4.0
+_pub_glfs_readdir_r _glfs_readdir_r$GFAPI_3.4.0
+_pub_glfs_readdirplus_r _glfs_readdirplus_r$GFAPI_3.4.0
+_pub_glfs_telldir _glfs_telldir$GFAPI_3.4.0
+_pub_glfs_seekdir _glfs_seekdir$GFAPI_3.4.0
+_pub_glfs_closedir _glfs_closedir$GFAPI_3.4.0
+_pub_glfs_statvfs _glfs_statvfs$GFAPI_3.4.0
+_pub_glfs_chmod _glfs_chmod$GFAPI_3.4.0
+_pub_glfs_fchmod _glfs_fchmod$GFAPI_3.4.0
+_pub_glfs_chown _glfs_chown$GFAPI_3.4.0
+_pub_glfs_lchown _glfs_lchown$GFAPI_3.4.0
+_pub_glfs_fchown _glfs_fchown$GFAPI_3.4.0
+_pub_glfs_utimens _glfs_utimens$GFAPI_3.4.0
+_pub_glfs_lutimens _glfs_lutimens$GFAPI_3.4.0
+_pub_glfs_futimens _glfs_futimens$GFAPI_3.4.0
+_pub_glfs_getxattr _glfs_getxattr$GFAPI_3.4.0
+_pub_glfs_lgetxattr _glfs_lgetxattr$GFAPI_3.4.0
+_pub_glfs_fgetxattr _glfs_fgetxattr$GFAPI_3.4.0
+_pub_glfs_listxattr _glfs_listxattr$GFAPI_3.4.0
+_pub_glfs_llistxattr _glfs_llistxattr$GFAPI_3.4.0
+_pub_glfs_flistxattr _glfs_flistxattr$GFAPI_3.4.0
+_pub_glfs_setxattr _glfs_setxattr$GFAPI_3.4.0
+_pub_glfs_lsetxattr _glfs_lsetxattr$GFAPI_3.4.0
+_pub_glfs_fsetxattr _glfs_fsetxattr$GFAPI_3.4.0
+_pub_glfs_removexattr _glfs_removexattr$GFAPI_3.4.0
+_pub_glfs_lremovexattr _glfs_lremovexattr$GFAPI_3.4.0
+_pub_glfs_fremovexattr _glfs_fremovexattr$GFAPI_3.4.0
+_pub_glfs_getcwd _glfs_getcwd$GFAPI_3.4.0
+_pub_glfs_chdir _glfs_chdir$GFAPI_3.4.0
+_pub_glfs_fchdir _glfs_fchdir$GFAPI_3.4.0
+_pub_glfs_realpath34 _glfs_realpath$GFAPI_3.4.0
+_pub_glfs_posix_lock _glfs_posix_lock$GFAPI_3.4.0
+_pub_glfs_dup _glfs_dup$GFAPI_3.4.0
+
+_pub_glfs_setfsuid _glfs_setfsuid$GFAPI_3.4.2
+_pub_glfs_setfsgid _glfs_setfsgid$GFAPI_3.4.2
+_pub_glfs_setfsgroups _glfs_setfsgroups$GFAPI_3.4.2
+_pub_glfs_h_lookupat34 _glfs_h_lookupat$GFAPI_3.4.2
+_pub_glfs_h_creat _glfs_h_creat$GFAPI_3.4.2
+_pub_glfs_h_mkdir _glfs_h_mkdir$GFAPI_3.4.2
+_pub_glfs_h_mknod _glfs_h_mknod$GFAPI_3.4.2
+_pub_glfs_h_symlink _glfs_h_symlink$GFAPI_3.4.2
+_pub_glfs_h_unlink _glfs_h_unlink$GFAPI_3.4.2
+_pub_glfs_h_close _glfs_h_close$GFAPI_3.4.2
+_pub_glfs_h_truncate _glfs_h_truncate$GFAPI_3.4.2
+_pub_glfs_h_stat _glfs_h_stat$GFAPI_3.4.2
+_pub_glfs_h_getattrs _glfs_h_getattrs$GFAPI_3.4.2
+_pub_glfs_h_setattrs _glfs_h_setattrs$GFAPI_3.4.2
+_pub_glfs_h_readlink _glfs_h_readlink$GFAPI_3.4.2
+_pub_glfs_h_link _glfs_h_link$GFAPI_3.4.2
+_pub_glfs_h_rename _glfs_h_rename$GFAPI_3.4.2
+_pub_glfs_h_extract_handle _glfs_h_extract_handle$GFAPI_3.4.2
+_pub_glfs_h_create_from_handle _glfs_h_create_from_handle$GFAPI_3.4.2
+_pub_glfs_h_opendir _glfs_h_opendir$GFAPI_3.4.2
+_pub_glfs_h_open _glfs_h_open$GFAPI_3.4.2
+
+_pub_glfs_get_volumeid _glfs_get_volumeid$GFAPI_3.5.0
+_pub_glfs_readdir _glfs_readdir$GFAPI_3.5.0
+_pub_glfs_readdirplus _glfs_readdirplus$GFAPI_3.5.0
+_pub_glfs_fallocate _glfs_fallocate$GFAPI_3.5.0
+_pub_glfs_discard _glfs_discard$GFAPI_3.5.0
+_pub_glfs_zerofill _glfs_zerofill$GFAPI_3.5.0
+_pub_glfs_caller_specific_init _glfs_caller_specific_init$GFAPI_3.5.0
+_pub_glfs_h_setxattrs _glfs_h_setxattrs$GFAPI_3.5.0
+
+_pub_glfs_unset_volfile_server _glfs_unset_volfile_server$GFAPI_3.5.1
+_pub_glfs_h_getxattrs _glfs_h_getxattrs$GFAPI_3.5.1
+_pub_glfs_h_removexattrs _glfs_h_removexattrs$GFAPI_3.5.1
+
+_pub_glfs_get_volfile _glfs_get_volfile$GFAPI_3.6.0
+_pub_glfs_h_access _glfs_h_access$GFAPI_3.6.0
+
+_pub_glfs_h_poll_upcall370 _glfs_h_poll_upcall$GFAPI_3.7.0
+_pub_glfs_h_acl_set _glfs_h_acl_set$GFAPI_3.7.0
+_pub_glfs_h_acl_get _glfs_h_acl_get$GFAPI_3.7.0
+_pub_glfs_h_statfs _glfs_h_statfs$GFAPI_3.7.0
+_pub_glfs_h_anonymous_read _glfs_h_anonymous_read$GFAPI_3.7.0
+_pub_glfs_h_anonymous_write _glfs_h_anonymous_write$GFAPI_3.7.0
+
+_priv_glfs_free_from_ctx _glfs_free_from_ctx$GFAPI_PRIVATE_3.7.0
+_priv_glfs_new_from_ctx _glfs_new_from_ctx$GFAPI_PRIVATE_3.7.0
+_priv_glfs_resolve _glfs_resolve$GFAPI_PRIVATE_3.7.0
+_priv_glfs_process_upcall_event _glfs_process_upcall_event$GFAPI_PRIVATE_3.7.0
+
+_pub_glfs_h_lookupat _glfs_h_lookupat$GFAPI_3.7.4
+
+_pub_glfs_truncate _glfs_truncate$GFAPI_3.7.15
+
+_pub_glfs_free _glfs_free$GFAPI_3.7.16
+_pub_glfs_h_poll_upcall _glfs_h_poll_upcall$GFAPI_3.7.16
+_pub_glfs_upcall_get_fs _glfs_upcall_get_fs$GFAPI_3.7.16
+_pub_glfs_upcall_get_reason _glfs_upcall_get_reason$GFAPI_3.7.16
+_pub_glfs_upcall_get_event _glfs_upcall_get_event$GFAPI_3.7.16
+_pub_glfs_upcall_inode_get_object _glfs_upcall_inode_get_object$GFAPI_3.7.16
+_pub_glfs_upcall_inode_get_flags _glfs_upcall_inode_get_flags$GFAPI_3.7.16
+_pub_glfs_upcall_inode_get_stat _glfs_upcall_inode_get_stat$GFAPI_3.7.16
+_pub_glfs_upcall_inode_get_expire _glfs_upcall_inode_get_expire$GFAPI_3.7.16
+_pub_glfs_upcall_inode_get_pobject _glfs_upcall_inode_get_pobject$GFAPI_3.7.16
+_pub_glfs_upcall_inode_get_pstat _glfs_upcall_inode_get_pstat$GFAPI_3.7.16
+_pub_glfs_upcall_inode_get_oldpobject _glfs_upcall_inode_get_oldpobject$GFAPI_3.7.16
+_pub_glfs_upcall_inode_get_oldpstat _glfs_upcall_inode_get_oldpstat$GFAPI_3.7.16
+
+_pub_glfs_realpath _glfs_realpath$GFAPI_3.7.17
+
+_pub_glfs_sysrq _glfs_sysrq$GFAPI_3.10.0
+
+_pub_glfs_fd_set_lkowner _glfs_fd_set_lkowner$GFAPI_3.10.7
+
+_pub_glfs_xreaddirplus_r _glfs_xreaddirplus_r$GFAPI_3.11.0
+_pub_glfs_xreaddirplus_r_get_stat _glfs_xreaddirplus_r_get_stat$GFAPI_3.11.0
+_pub_glfs_xreaddirplus_r_get_object _glfs_xreaddirplus_r_get_object$GFAPI_3.11.0
+_pub_glfs_object_copy _glfs_object_copy$GFAPI_3.11.0
+
+_priv_glfs_ipc _glfs_ipc$GFAPI_3.12.0
+
+_pub_glfs_upcall_register _glfs_upcall_register$GFAPI_3.13.0
+_pub_glfs_upcall_unregister _glfs_upcall_unregister$GFAPI_3.13.0
+
+_pub_glfs_setfsleaseid _glfs_setfsleaseid$GFAPI_4.0.0
+_pub_glfs_file_lock _glfs_file_lock$GFAPI_4.0.0
+_pub_glfs_lease _glfs_lease$GFAPI_4.0.0
+_pub_glfs_h_lease _glfs_h_lease$GFAPI_4.0.0
+_pub_glfs_upcall_lease_get_object _glfs_upcall_lease_get_object$GFAPI_4.1.6
+_pub_glfs_upcall_lease_get_lease_type _glfs_upcall_lease_get_lease_type$GFAPI_4.1.6
+
+_priv_glfs_statx _glfs_statx$GFAPI_6.0
+_priv_glfs_iatt_from_statx _glfs_iatt_from_statx$GFAPI_6.0
+_priv_glfs_setfspid _glfs_setfspid$GFAPI_6.1
+
+_pub_glfs_read_async _glfs_read_async$GFAPI_6.0
+_pub_glfs_write_async _glfs_write_async$GFAPI_6.0
+_pub_glfs_readv_async _glfs_readv_async$GFAPI_6.0
+_pub_glfs_writev_async _glfs_writev_async$GFAPI_6.0
+_pub_glfs_pread _glfs_pread$GFAPI_6.0
+_pub_glfs_pwrite _glfs_pwrite$GFAPI_6.0
+_pub_glfs_pread_async _glfs_pread_async$GFAPI_6.0
+_pub_glfs_pwrite_async _glfs_pwrite_async$GFAPI_6.0
+_pub_glfs_preadv_async _glfs_preadv_async$GFAPI_6.0
+_pub_glfs_pwritev_async _glfs_pwritev_async$GFAPI_6.0
+_pub_glfs_fsync _glfs_fsync$GFAPI_6.0
+_pub_glfs_fsync_async _glfs_fsync_async$GFAPI_6.0
+_pub_glfs_fdatasync _glfs_fdatasync$GFAPI_6.0
+_pub_glfs_fdatasync_async _glfs_fdatasync_async$GFAPI_6.0
+_pub_glfs_ftruncate _glfs_ftruncate$GFAPI_6.0
+_pub_glfs_ftruncate_async _glfs_ftruncate_async$GFAPI_6.0
+_pub_glfs_discard_async _glfs_discard_async$GFAPI_6.0
+_pub_glfs_zerofill_async _glfs_zerofill_async$GFAPI_6.0
+_pub_glfs_copy_file_range _glfs_copy_file_range$GFAPI_6.0
+_pub_glfs_fsetattr _glfs_fsetattr$GFAPI_6.0
+_pub_glfs_setattr _glfs_setattr$GFAPI_6.0
+
+_pub_glfs_set_statedump_path _glfs_set_statedump_path@GFAPI_7.0
+
+_pub_glfs_h_creat_open _glfs_h_creat_open@GFAPI_6.6
diff --git a/api/src/gfapi.map b/api/src/gfapi.map
new file mode 100644
index 00000000000..228ac47c084
--- /dev/null
+++ b/api/src/gfapi.map
@@ -0,0 +1,283 @@
+
+GFAPI_PRIVATE_3.4.0 {
+ global:
+ glfs_loc_touchup;
+ glfs_active_subvol;
+ glfs_subvol_done;
+ glfs_init_done;
+ glfs_resolve_at;
+ local: *;
+};
+
+GFAPI_3.4.0 {
+ global:
+ glfs_new;
+ glfs_set_volfile;
+ glfs_set_volfile_server;
+ glfs_set_logging;
+ glfs_init;
+ glfs_fini;
+ glfs_open;
+ glfs_creat;
+ glfs_close;
+ glfs_from_glfd;
+ glfs_set_xlator_option;
+ glfs_read;
+ glfs_write;
+ glfs_read_async;
+ glfs_write_async;
+ glfs_readv;
+ glfs_writev;
+ glfs_readv_async;
+ glfs_writev_async;
+ glfs_pread;
+ glfs_pwrite;
+ glfs_pread_async;
+ glfs_pwrite_async;
+ glfs_preadv;
+ glfs_pwritev;
+ glfs_preadv_async;
+ glfs_pwritev_async;
+ glfs_lseek;
+ glfs_ftruncate;
+ glfs_ftruncate_async;
+ glfs_lstat;
+ glfs_stat;
+ glfs_fstat;
+ glfs_fsync;
+ glfs_fsync_async;
+ glfs_fdatasync;
+ glfs_fdatasync_async;
+ glfs_access;
+ glfs_symlink;
+ glfs_readlink;
+ glfs_mknod;
+ glfs_mkdir;
+ glfs_unlink;
+ glfs_rmdir;
+ glfs_rename;
+ glfs_link;
+ glfs_opendir;
+ glfs_readdir_r;
+ glfs_readdirplus_r;
+ glfs_telldir;
+ glfs_seekdir;
+ glfs_closedir;
+ glfs_statvfs;
+ glfs_chmod;
+ glfs_fchmod;
+ glfs_chown;
+ glfs_lchown;
+ glfs_fchown;
+ glfs_utimens;
+ glfs_lutimens;
+ glfs_futimens;
+ glfs_getxattr;
+ glfs_lgetxattr;
+ glfs_fgetxattr;
+ glfs_listxattr;
+ glfs_llistxattr;
+ glfs_flistxattr;
+ glfs_setxattr;
+ glfs_lsetxattr;
+ glfs_fsetxattr;
+ glfs_removexattr;
+ glfs_lremovexattr;
+ glfs_fremovexattr;
+ glfs_getcwd;
+ glfs_chdir;
+ glfs_fchdir;
+ glfs_realpath;
+ glfs_posix_lock;
+ glfs_dup;
+} GFAPI_PRIVATE_3.4.0;
+
+GFAPI_3.4.2 {
+ global:
+ glfs_setfsuid;
+ glfs_setfsgid;
+ glfs_setfsgroups;
+ glfs_h_creat;
+ glfs_h_mkdir;
+ glfs_h_mknod;
+ glfs_h_symlink;
+ glfs_h_unlink;
+ glfs_h_close;
+ glfs_h_truncate;
+ glfs_h_stat;
+ glfs_h_getattrs;
+ glfs_h_setattrs;
+ glfs_h_readlink;
+ glfs_h_link;
+ glfs_h_rename;
+ glfs_h_extract_handle;
+ glfs_h_create_from_handle;
+ glfs_h_opendir;
+ glfs_h_open;
+ glfs_h_lookupat;
+} GFAPI_3.4.0;
+
+GFAPI_3.5.0 {
+ global:
+ glfs_get_volumeid;
+ glfs_readdir;
+ glfs_readdirplus;
+ glfs_fallocate;
+ glfs_discard;
+ glfs_discard_async;
+ glfs_zerofill;
+ glfs_zerofill_async;
+ glfs_caller_specific_init;
+ glfs_h_setxattrs;
+} GFAPI_3.4.2;
+
+GFAPI_3.5.1 {
+ global:
+ glfs_unset_volfile_server;
+ glfs_h_getxattrs;
+ glfs_h_removexattrs;
+} GFAPI_3.5.0;
+
+GFAPI_3.6.0 {
+ global:
+ glfs_get_volfile;
+ glfs_h_access;
+} GFAPI_3.5.1;
+
+GFAPI_3.7.0 {
+ global:
+ glfs_h_poll_upcall;
+ glfs_h_acl_set;
+ glfs_h_acl_get;
+ glfs_h_statfs;
+ glfs_h_anonymous_read;
+ glfs_h_anonymous_write;
+} GFAPI_3.6.0;
+
+GFAPI_PRIVATE_3.7.0 {
+ global:
+ glfs_free_from_ctx;
+ glfs_new_from_ctx;
+ glfs_resolve;
+ glfs_process_upcall_event;
+} GFAPI_3.7.0;
+
+GFAPI_3.7.4 {
+ global:
+ glfs_h_lookupat;
+} GFAPI_PRIVATE_3.7.0;
+
+GFAPI_3.7.15 {
+ global:
+ glfs_truncate;
+} GFAPI_3.7.4;
+
+GFAPI_3.7.16 {
+ global:
+ glfs_free;
+ glfs_upcall_get_fs;
+ glfs_upcall_get_reason;
+ glfs_upcall_get_event;
+ glfs_upcall_inode_get_object;
+ glfs_upcall_inode_get_flags;
+ glfs_upcall_inode_get_stat;
+ glfs_upcall_inode_get_expire;
+ glfs_upcall_inode_get_pobject;
+ glfs_upcall_inode_get_pstat;
+ glfs_upcall_inode_get_oldpobject;
+ glfs_upcall_inode_get_oldpstat;
+ glfs_h_poll_upcall;
+} GFAPI_3.7.15;
+
+GFAPI_3.7.17 {
+ global:
+ glfs_realpath;
+} GFAPI_3.7.16;
+
+GFAPI_3.10.0 {
+ global:
+ glfs_sysrq;
+} GFAPI_3.7.17;
+
+GFAPI_3.10.7 {
+ global:
+ glfs_fd_set_lkowner;
+} GFAPI_3.10.0;
+
+GFAPI_3.11.0 {
+ glfs_xreaddirplus_r;
+ glfs_xreaddirplus_r_get_stat;
+ glfs_xreaddirplus_r_get_object;
+ glfs_object_copy;
+} GFAPI_3.10.7;
+
+GFAPI_PRIVATE_3.12.0 {
+ global:
+ glfs_ipc;
+} GFAPI_3.11.0;
+
+GFAPI_3.13.0 {
+ global:
+ glfs_upcall_register;
+ glfs_upcall_unregister;
+} GFAPI_PRIVATE_3.12.0;
+
+GFAPI_4.0.0 {
+ global:
+ glfs_setfsleaseid;
+ glfs_file_lock;
+ glfs_lease;
+ glfs_h_lease;
+} GFAPI_3.13.0;
+
+GFAPI_4.1.6 {
+ global:
+ glfs_upcall_lease_get_object;
+ glfs_upcall_lease_get_lease_type;
+} GFAPI_4.0.0;
+
+GFAPI_PRIVATE_6.0 {
+ global:
+ glfs_statx;
+ glfs_iatt_from_statx;
+} GFAPI_4.1.6;
+
+GFAPI_6.0 {
+ global:
+ glfs_read_async;
+ glfs_write_async;
+ glfs_readv_async;
+ glfs_writev_async;
+ glfs_pread;
+ glfs_pwrite;
+ glfs_pread_async;
+ glfs_pwrite_async;
+ glfs_preadv_async;
+ glfs_pwritev_async;
+ glfs_fsync;
+ glfs_fsync_async;
+ glfs_fdatasync;
+ glfs_fdatasync_async;
+ glfs_ftruncate;
+ glfs_ftruncate_async;
+ glfs_discard_async;
+ glfs_zerofill_async;
+ glfs_copy_file_range;
+ glfs_setattr;
+ glfs_fsetattr;
+} GFAPI_PRIVATE_6.0;
+
+GFAPI_PRIVATE_6.1 {
+ global:
+ glfs_setfspid;
+} GFAPI_6.0;
+
+GFAPI_6.6 {
+ global:
+ glfs_h_creat_open;
+} GFAPI_PRIVATE_6.1;
+
+GFAPI_7.0 {
+ global:
+ glfs_set_statedump_path;
+} GFAPI_6.6;
diff --git a/api/src/glfs-fops.c b/api/src/glfs-fops.c
new file mode 100644
index 00000000000..6aa3c5602d1
--- /dev/null
+++ b/api/src/glfs-fops.c
@@ -0,0 +1,6445 @@
+
+/*
+ Copyright (c) 2012-2018 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+/* for SEEK_HOLE and SEEK_DATA */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <unistd.h>
+
+#include "glfs-internal.h"
+#include "glfs-mem-types.h"
+#include <glusterfs/syncop.h>
+#include "glfs.h"
+#include "gfapi-messages.h"
+#include <glusterfs/compat-errno.h>
+#include <limits.h>
+#include "glusterfs3.h"
+#include <glusterfs/iatt.h>
+
+#ifdef NAME_MAX
+#define GF_NAME_MAX NAME_MAX
+#else
+#define GF_NAME_MAX 255
+#endif
+
+struct upcall_syncop_args {
+ struct glfs *fs;
+ struct gf_upcall upcall_data;
+};
+
+#define READDIRBUF_SIZE (sizeof(struct dirent) + GF_NAME_MAX + 1)
+
+typedef void (*glfs_io_cbk34)(glfs_fd_t *fd, ssize_t ret, void *data);
+
+/*
+ * This function will mark glfd for deletion and decrement its refcount.
+ */
+int
+glfs_mark_glfd_for_deletion(struct glfs_fd *glfd)
+{
+ LOCK(&glfd->lock);
+ {
+ glfd->state = GLFD_CLOSE;
+ }
+ UNLOCK(&glfd->lock);
+
+ GF_REF_PUT(glfd);
+
+ return 0;
+}
+
+/* This function is useful for all async fops. There is chance that glfd is
+ * closed before async fop is completed. When glfd is closed we change the
+ * state to GLFD_CLOSE.
+ *
+ * This function will return _gf_true if the glfd is still valid else return
+ * _gf_false.
+ */
+gf_boolean_t
+glfs_is_glfd_still_valid(struct glfs_fd *glfd)
+{
+ gf_boolean_t ret = _gf_false;
+
+ LOCK(&glfd->lock);
+ {
+ if (glfd->state != GLFD_CLOSE)
+ ret = _gf_true;
+ }
+ UNLOCK(&glfd->lock);
+
+ return ret;
+}
+
+void
+glfd_set_state_bind(struct glfs_fd *glfd)
+{
+ LOCK(&glfd->lock);
+ {
+ glfd->state = GLFD_OPEN;
+ }
+ UNLOCK(&glfd->lock);
+
+ fd_bind(glfd->fd);
+ glfs_fd_bind(glfd);
+
+ return;
+}
+
+/*
+ * This routine is called when an upcall event of type
+ * 'GF_UPCALL_CACHE_INVALIDATION' is received.
+ * It makes a copy of the contents of the upcall cache-invalidation
+ * data received into an entry which is stored in the upcall list
+ * maintained by gfapi.
+ */
+int
+glfs_get_upcall_cache_invalidation(struct gf_upcall *to_up_data,
+ struct gf_upcall *from_up_data)
+{
+ struct gf_upcall_cache_invalidation *ca_data = NULL;
+ struct gf_upcall_cache_invalidation *f_ca_data = NULL;
+ int ret = -1;
+
+ GF_VALIDATE_OR_GOTO(THIS->name, to_up_data, out);
+ GF_VALIDATE_OR_GOTO(THIS->name, from_up_data, out);
+
+ f_ca_data = from_up_data->data;
+ GF_VALIDATE_OR_GOTO(THIS->name, f_ca_data, out);
+
+ ca_data = GF_CALLOC(1, sizeof(*ca_data), glfs_mt_upcall_entry_t);
+
+ if (!ca_data) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, errno, API_MSG_ALLOC_FAILED, "entry",
+ NULL);
+ goto out;
+ }
+
+ to_up_data->data = ca_data;
+
+ ca_data->flags = f_ca_data->flags;
+ ca_data->expire_time_attr = f_ca_data->expire_time_attr;
+ ca_data->stat = f_ca_data->stat;
+ ca_data->p_stat = f_ca_data->p_stat;
+ ca_data->oldp_stat = f_ca_data->oldp_stat;
+
+ ret = 0;
+out:
+ return ret;
+}
+
+int
+glfs_get_upcall_lease(struct gf_upcall *to_up_data,
+ struct gf_upcall *from_up_data)
+{
+ struct gf_upcall_recall_lease *ca_data = NULL;
+ struct gf_upcall_recall_lease *f_ca_data = NULL;
+ int ret = -1;
+
+ GF_VALIDATE_OR_GOTO(THIS->name, to_up_data, out);
+ GF_VALIDATE_OR_GOTO(THIS->name, from_up_data, out);
+
+ f_ca_data = from_up_data->data;
+ GF_VALIDATE_OR_GOTO(THIS->name, f_ca_data, out);
+
+ ca_data = GF_CALLOC(1, sizeof(*ca_data), glfs_mt_upcall_entry_t);
+
+ if (!ca_data) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, errno, API_MSG_ALLOC_FAILED, "entry",
+ NULL);
+ goto out;
+ }
+
+ to_up_data->data = ca_data;
+
+ ca_data->lease_type = f_ca_data->lease_type;
+ gf_uuid_copy(ca_data->tid, f_ca_data->tid);
+ ca_data->dict = f_ca_data->dict;
+
+ ret = 0;
+out:
+ return ret;
+}
+int
+glfs_loc_link(loc_t *loc, struct iatt *iatt)
+{
+ int ret = -1;
+ inode_t *old_inode = NULL;
+ uint64_t ctx_value = LOOKUP_NOT_NEEDED;
+
+ if (!loc->inode) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ old_inode = loc->inode;
+
+ /* If the inode already exists in the cache, the inode
+ * returned here points to the existing one. We need
+ * to update loc.inode accordingly.
+ */
+ loc->inode = inode_link(loc->inode, loc->parent, loc->name, iatt);
+ if (loc->inode) {
+ inode_ctx_set(loc->inode, THIS, &ctx_value);
+ inode_lookup(loc->inode);
+ inode_unref(old_inode);
+ ret = 0;
+ } else {
+ ret = -1;
+ }
+
+ return ret;
+}
+
+void
+glfs_iatt_to_stat(struct glfs *fs, struct iatt *iatt, struct stat *stat)
+{
+ iatt_to_stat(iatt, stat);
+ stat->st_dev = fs->dev_id;
+}
+
+void
+glfs_iatt_to_statx(struct glfs *fs, const struct iatt *iatt,
+ struct glfs_stat *statx)
+{
+ statx->glfs_st_mask = 0;
+
+ statx->glfs_st_mode = 0;
+ if (IATT_TYPE_VALID(iatt->ia_flags)) {
+ statx->glfs_st_mode |= st_mode_type_from_ia(iatt->ia_type);
+ statx->glfs_st_mask |= GLFS_STAT_TYPE;
+ }
+
+ if (IATT_MODE_VALID(iatt->ia_flags)) {
+ statx->glfs_st_mode |= st_mode_prot_from_ia(iatt->ia_prot);
+ statx->glfs_st_mask |= GLFS_STAT_MODE;
+ }
+
+ if (IATT_NLINK_VALID(iatt->ia_flags)) {
+ statx->glfs_st_nlink = iatt->ia_nlink;
+ statx->glfs_st_mask |= GLFS_STAT_NLINK;
+ }
+
+ if (IATT_UID_VALID(iatt->ia_flags)) {
+ statx->glfs_st_uid = iatt->ia_uid;
+ statx->glfs_st_mask |= GLFS_STAT_UID;
+ }
+
+ if (IATT_GID_VALID(iatt->ia_flags)) {
+ statx->glfs_st_gid = iatt->ia_gid;
+ statx->glfs_st_mask |= GLFS_STAT_GID;
+ }
+
+ if (IATT_ATIME_VALID(iatt->ia_flags)) {
+ statx->glfs_st_atime.tv_sec = iatt->ia_atime;
+ statx->glfs_st_atime.tv_nsec = iatt->ia_atime_nsec;
+ statx->glfs_st_mask |= GLFS_STAT_ATIME;
+ }
+
+ if (IATT_MTIME_VALID(iatt->ia_flags)) {
+ statx->glfs_st_mtime.tv_sec = iatt->ia_mtime;
+ statx->glfs_st_mtime.tv_nsec = iatt->ia_mtime_nsec;
+ statx->glfs_st_mask |= GLFS_STAT_MTIME;
+ }
+
+ if (IATT_CTIME_VALID(iatt->ia_flags)) {
+ statx->glfs_st_ctime.tv_sec = iatt->ia_ctime;
+ statx->glfs_st_ctime.tv_nsec = iatt->ia_ctime_nsec;
+ statx->glfs_st_mask |= GLFS_STAT_CTIME;
+ }
+
+ if (IATT_BTIME_VALID(iatt->ia_flags)) {
+ statx->glfs_st_btime.tv_sec = iatt->ia_btime;
+ statx->glfs_st_btime.tv_nsec = iatt->ia_btime_nsec;
+ statx->glfs_st_mask |= GLFS_STAT_BTIME;
+ }
+
+ if (IATT_INO_VALID(iatt->ia_flags)) {
+ statx->glfs_st_ino = iatt->ia_ino;
+ statx->glfs_st_mask |= GLFS_STAT_INO;
+ }
+
+ if (IATT_SIZE_VALID(iatt->ia_flags)) {
+ statx->glfs_st_size = iatt->ia_size;
+ statx->glfs_st_mask |= GLFS_STAT_SIZE;
+ }
+
+ if (IATT_BLOCKS_VALID(iatt->ia_flags)) {
+ statx->glfs_st_blocks = iatt->ia_blocks;
+ statx->glfs_st_mask |= GLFS_STAT_BLOCKS;
+ }
+
+ /* unconditionally present, encode as is */
+ statx->glfs_st_blksize = iatt->ia_blksize;
+ statx->glfs_st_rdev_major = ia_major(iatt->ia_rdev);
+ statx->glfs_st_rdev_minor = ia_minor(iatt->ia_rdev);
+ statx->glfs_st_dev_major = ia_major(fs->dev_id);
+ statx->glfs_st_dev_minor = ia_minor(fs->dev_id);
+
+ /* At present we do not read any localFS attributes and pass them along,
+ * so setting this to 0. As we start supporting file attributes we can
+ * populate the same here as well */
+ statx->glfs_st_attributes = 0;
+ statx->glfs_st_attributes_mask = 0;
+}
+
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_iatt_from_statx, 6.0)
+void
+priv_glfs_iatt_from_statx(struct iatt *iatt, const struct glfs_stat *statx)
+{
+ /* Most code in xlators are not checking validity flags before accessing
+ the items. Hence zero everything before setting valid items */
+ memset(iatt, 0, sizeof(struct iatt));
+
+ if (GLFS_STAT_TYPE_VALID(statx->glfs_st_mask)) {
+ iatt->ia_type = ia_type_from_st_mode(statx->glfs_st_mode);
+ iatt->ia_flags |= IATT_TYPE;
+ }
+
+ if (GLFS_STAT_MODE_VALID(statx->glfs_st_mask)) {
+ iatt->ia_prot = ia_prot_from_st_mode(statx->glfs_st_mode);
+ iatt->ia_flags |= IATT_MODE;
+ }
+
+ if (GLFS_STAT_NLINK_VALID(statx->glfs_st_mask)) {
+ iatt->ia_nlink = statx->glfs_st_nlink;
+ iatt->ia_flags |= IATT_NLINK;
+ }
+
+ if (GLFS_STAT_UID_VALID(statx->glfs_st_mask)) {
+ iatt->ia_uid = statx->glfs_st_uid;
+ iatt->ia_flags |= IATT_UID;
+ }
+
+ if (GLFS_STAT_GID_VALID(statx->glfs_st_mask)) {
+ iatt->ia_gid = statx->glfs_st_gid;
+ iatt->ia_flags |= IATT_GID;
+ }
+
+ if (GLFS_STAT_ATIME_VALID(statx->glfs_st_mask)) {
+ iatt->ia_atime = statx->glfs_st_atime.tv_sec;
+ iatt->ia_atime_nsec = statx->glfs_st_atime.tv_nsec;
+ iatt->ia_flags |= IATT_ATIME;
+ }
+
+ if (GLFS_STAT_MTIME_VALID(statx->glfs_st_mask)) {
+ iatt->ia_mtime = statx->glfs_st_mtime.tv_sec;
+ iatt->ia_mtime_nsec = statx->glfs_st_mtime.tv_nsec;
+ iatt->ia_flags |= IATT_MTIME;
+ }
+
+ if (GLFS_STAT_CTIME_VALID(statx->glfs_st_mask)) {
+ iatt->ia_ctime = statx->glfs_st_ctime.tv_sec;
+ iatt->ia_ctime_nsec = statx->glfs_st_ctime.tv_nsec;
+ iatt->ia_flags |= IATT_CTIME;
+ }
+
+ if (GLFS_STAT_BTIME_VALID(statx->glfs_st_mask)) {
+ iatt->ia_btime = statx->glfs_st_btime.tv_sec;
+ iatt->ia_btime_nsec = statx->glfs_st_btime.tv_nsec;
+ iatt->ia_flags |= IATT_BTIME;
+ }
+
+ if (GLFS_STAT_INO_VALID(statx->glfs_st_mask)) {
+ iatt->ia_ino = statx->glfs_st_ino;
+ iatt->ia_flags |= IATT_INO;
+ }
+
+ if (GLFS_STAT_SIZE_VALID(statx->glfs_st_mask)) {
+ iatt->ia_size = statx->glfs_st_size;
+ iatt->ia_flags |= IATT_SIZE;
+ }
+
+ if (GLFS_STAT_BLOCKS_VALID(statx->glfs_st_mask)) {
+ iatt->ia_blocks = statx->glfs_st_blocks;
+ iatt->ia_flags |= IATT_BLOCKS;
+ }
+
+ /* unconditionally present, encode as is */
+ iatt->ia_blksize = statx->glfs_st_blksize;
+ iatt->ia_rdev = makedev(statx->glfs_st_rdev_major,
+ statx->glfs_st_rdev_minor);
+ iatt->ia_dev = makedev(statx->glfs_st_dev_major, statx->glfs_st_dev_minor);
+ iatt->ia_attributes = statx->glfs_st_attributes;
+ iatt->ia_attributes_mask = statx->glfs_st_attributes_mask;
+}
+
+void
+glfsflags_from_gfapiflags(struct glfs_stat *stat, int *glvalid)
+{
+ *glvalid = 0;
+ if (stat->glfs_st_mask & GLFS_STAT_MODE) {
+ *glvalid |= GF_SET_ATTR_MODE;
+ }
+
+ if (stat->glfs_st_mask & GLFS_STAT_SIZE) {
+ *glvalid |= GF_SET_ATTR_SIZE;
+ }
+
+ if (stat->glfs_st_mask & GLFS_STAT_UID) {
+ *glvalid |= GF_SET_ATTR_UID;
+ }
+
+ if (stat->glfs_st_mask & GLFS_STAT_GID) {
+ *glvalid |= GF_SET_ATTR_GID;
+ }
+
+ if (stat->glfs_st_mask & GLFS_STAT_ATIME) {
+ *glvalid |= GF_SET_ATTR_ATIME;
+ }
+
+ if (stat->glfs_st_mask & GLFS_STAT_MTIME) {
+ *glvalid |= GF_SET_ATTR_MTIME;
+ }
+}
+
+int
+glfs_loc_unlink(loc_t *loc)
+{
+ inode_unlink(loc->inode, loc->parent, loc->name);
+
+ /* since glfs_h_* objects hold a reference to inode
+ * it is safe to keep lookup count to '0' */
+ if (!inode_has_dentry(loc->inode))
+ inode_forget(loc->inode, 0);
+
+ return 0;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_open, 3.4.0)
+struct glfs_fd *
+pub_glfs_open(struct glfs *fs, const char *path, int flags)
+{
+ int ret = -1;
+ struct glfs_fd *glfd = NULL;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ glfd = glfs_fd_new(fs);
+ if (!glfd)
+ goto out;
+
+retry:
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ if (IA_ISDIR(iatt.ia_type)) {
+ ret = -1;
+ errno = EISDIR;
+ goto out;
+ }
+
+ if (!IA_ISREG(iatt.ia_type)) {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ if (glfd->fd) {
+ /* Retry. Safe to touch glfd->fd as we
+ still have not glfs_fd_bind() yet.
+ */
+ fd_unref(glfd->fd);
+ glfd->fd = NULL;
+ }
+
+ glfd->fd = fd_create(loc.inode, getpid());
+ if (!glfd->fd) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+ glfd->fd->flags = flags;
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_open(subvol, &loc, flags, glfd->fd, fop_attr, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+out:
+ loc_wipe(&loc);
+
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ if (ret && glfd) {
+ GF_REF_PUT(glfd);
+ glfd = NULL;
+ } else if (glfd) {
+ glfd_set_state_bind(glfd);
+ }
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return glfd;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_close, 3.4.0)
+int
+pub_glfs_close(struct glfs_fd *glfd)
+{
+ xlator_t *subvol = NULL;
+ int ret = -1;
+ fd_t *fd = NULL;
+ struct glfs *fs = NULL;
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ if (glfd->lk_owner.len != 0) {
+ ret = syncopctx_setfslkowner(&glfd->lk_owner);
+ if (ret)
+ goto out;
+ }
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_flush(subvol, fd, fop_attr, NULL);
+ DECODE_SYNCOP_ERR(ret);
+out:
+ fs = glfd->fs;
+
+ if (fd)
+ fd_unref(fd);
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ glfs_mark_glfd_for_deletion(glfd);
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_lstat, 3.4.0)
+int
+pub_glfs_lstat(struct glfs *fs, const char *path, struct stat *stat)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ ret = glfs_lresolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret == 0 && stat)
+ glfs_iatt_to_stat(fs, &iatt, stat);
+out:
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_stat, 3.4.0)
+int
+pub_glfs_stat(struct glfs *fs, const char *path, struct stat *stat)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret == 0 && stat)
+ glfs_iatt_to_stat(fs, &iatt, stat);
+out:
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_statx, 6.0)
+int
+priv_glfs_statx(struct glfs *fs, const char *path, const unsigned int mask,
+ struct glfs_stat *statxbuf)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ if (path == NULL) {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ if (mask & ~GLFS_STAT_ALL) {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+retry:
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret == 0 && statxbuf)
+ glfs_iatt_to_statx(fs, &iatt, statxbuf);
+out:
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fstat, 3.4.0)
+int
+pub_glfs_fstat(struct glfs_fd *glfd, struct stat *stat)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ struct iatt iatt = {
+ 0,
+ };
+ fd_t *fd = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ ret = syncop_fstat(subvol, fd, &iatt, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret == 0 && stat)
+ glfs_iatt_to_stat(glfd->fs, &iatt, stat);
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_creat, 3.4.0)
+struct glfs_fd *
+pub_glfs_creat(struct glfs *fs, const char *path, int flags, mode_t mode)
+{
+ int ret = -1;
+ struct glfs_fd *glfd = NULL;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ uuid_t gfid;
+ dict_t *xattr_req = NULL;
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ xattr_req = dict_new();
+ if (!xattr_req) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gf_uuid_generate(gfid);
+ ret = dict_set_gfuuid(xattr_req, "gfid-req", gfid, true);
+ if (ret) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ glfd = glfs_fd_new(fs);
+ if (!glfd)
+ goto out;
+
+ /* This must be glfs_resolve() and NOT glfs_lresolve().
+ That is because open("name", O_CREAT) where "name"
+ is a danging symlink must create the dangling
+ destination.
+ */
+retry:
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret == -1 && errno != ENOENT)
+ /* Any other type of error is fatal */
+ goto out;
+
+ if (ret == -1 && errno == ENOENT && !loc.parent)
+ /* The parent directory or an ancestor even
+ higher does not exist
+ */
+ goto out;
+
+ if (loc.inode) {
+ if (flags & O_EXCL) {
+ ret = -1;
+ errno = EEXIST;
+ goto out;
+ }
+
+ if (IA_ISDIR(iatt.ia_type)) {
+ ret = -1;
+ errno = EISDIR;
+ goto out;
+ }
+
+ if (!IA_ISREG(iatt.ia_type)) {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+ }
+
+ if (ret == -1 && errno == ENOENT) {
+ loc.inode = inode_new(loc.parent->table);
+ if (!loc.inode) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+ }
+
+ if (glfd->fd) {
+ /* Retry. Safe to touch glfd->fd as we
+ still have not glfs_fd_bind() yet.
+ */
+ fd_unref(glfd->fd);
+ glfd->fd = NULL;
+ }
+
+ glfd->fd = fd_create(loc.inode, getpid());
+ if (!glfd->fd) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+ glfd->fd->flags = flags;
+
+ if (get_fop_attr_thrd_key(&xattr_req))
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+ if (ret == 0) {
+ ret = syncop_open(subvol, &loc, flags, glfd->fd, xattr_req, NULL);
+ DECODE_SYNCOP_ERR(ret);
+ } else {
+ ret = syncop_create(subvol, &loc, flags, mode, glfd->fd, &iatt,
+ xattr_req, NULL);
+ DECODE_SYNCOP_ERR(ret);
+ }
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret == 0)
+ ret = glfs_loc_link(&loc, &iatt);
+out:
+ loc_wipe(&loc);
+
+ if (xattr_req)
+ dict_unref(xattr_req);
+
+ if (ret && glfd) {
+ GF_REF_PUT(glfd);
+ glfd = NULL;
+ } else if (glfd) {
+ glfd_set_state_bind(glfd);
+ }
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return glfd;
+}
+
+#ifdef HAVE_SEEK_HOLE
+static int
+glfs_seek(struct glfs_fd *glfd, off_t offset, int whence)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ gf_seek_what_t what = 0;
+ off_t off = -1;
+
+ switch (whence) {
+ case SEEK_DATA:
+ what = GF_SEEK_DATA;
+ break;
+ case SEEK_HOLE:
+ what = GF_SEEK_HOLE;
+ break;
+ default:
+ /* other SEEK_* do not make sense, all operations get an offset
+ * and the position in the fd is not tracked */
+ errno = EINVAL;
+ goto out;
+ }
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ errno = EBADFD;
+ goto done;
+ }
+
+ ret = syncop_seek(subvol, fd, offset, what, NULL, &off);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret != -1)
+ glfd->offset = off;
+
+done:
+ if (fd)
+ fd_unref(fd);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+out:
+ return ret;
+}
+#endif
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_lseek, 3.4.0)
+off_t
+pub_glfs_lseek(struct glfs_fd *glfd, off_t offset, int whence)
+{
+ struct stat sb = {
+ 0,
+ };
+ int ret = -1;
+ off_t off = -1;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ switch (whence) {
+ case SEEK_SET:
+ glfd->offset = offset;
+ ret = 0;
+ break;
+ case SEEK_CUR:
+ glfd->offset += offset;
+ ret = 0;
+ break;
+ case SEEK_END:
+ ret = pub_glfs_fstat(glfd, &sb);
+ if (ret) {
+ /* seek cannot fail :O */
+ break;
+ }
+ glfd->offset = sb.st_size + offset;
+ break;
+#ifdef HAVE_SEEK_HOLE
+ case SEEK_DATA:
+ case SEEK_HOLE:
+ ret = glfs_seek(glfd, offset, whence);
+ break;
+#endif
+ default:
+ errno = EINVAL;
+ }
+
+ if (glfd)
+ GF_REF_PUT(glfd);
+
+ __GLFS_EXIT_FS;
+
+ if (ret != -1)
+ off = glfd->offset;
+
+ return off;
+
+invalid_fs:
+ return -1;
+}
+
+static ssize_t
+glfs_preadv_common(struct glfs_fd *glfd, const struct iovec *iovec, int iovcnt,
+ off_t offset, int flags, struct glfs_stat *poststat)
+{
+ xlator_t *subvol = NULL;
+ ssize_t ret = -1;
+ ssize_t size = -1;
+ struct iovec *iov = NULL;
+ int cnt = 0;
+ struct iobref *iobref = NULL;
+ fd_t *fd = NULL;
+ struct iatt iatt = {
+ 0,
+ };
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ size = iov_length(iovec, iovcnt);
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_readv(subvol, fd, size, offset, 0, &iov, &cnt, &iobref, &iatt,
+ fop_attr, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret >= 0 && poststat)
+ glfs_iatt_to_statx(glfd->fs, &iatt, poststat);
+
+ if (ret <= 0)
+ goto out;
+
+ size = iov_copy(iovec, iovcnt, iov, cnt); /* FIXME!!! */
+
+ glfd->offset = (offset + size);
+
+ ret = size;
+out:
+ if (iov)
+ GF_FREE(iov);
+ if (iobref)
+ iobref_unref(iobref);
+
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_preadv, 3.4.0)
+ssize_t
+pub_glfs_preadv(struct glfs_fd *glfd, const struct iovec *iovec, int iovcnt,
+ off_t offset, int flags)
+{
+ return glfs_preadv_common(glfd, iovec, iovcnt, offset, flags, NULL);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_read, 3.4.0)
+ssize_t
+pub_glfs_read(struct glfs_fd *glfd, void *buf, size_t count, int flags)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ if (glfd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ iov.iov_base = buf;
+ iov.iov_len = count;
+
+ ret = pub_glfs_preadv(glfd, &iov, 1, glfd->offset, flags);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_pread34, glfs_pread, 3.4.0)
+ssize_t
+pub_glfs_pread34(struct glfs_fd *glfd, void *buf, size_t count, off_t offset,
+ int flags)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ iov.iov_base = buf;
+ iov.iov_len = count;
+
+ ret = pub_glfs_preadv(glfd, &iov, 1, offset, flags);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_pread, 6.0)
+ssize_t
+pub_glfs_pread(struct glfs_fd *glfd, void *buf, size_t count, off_t offset,
+ int flags, struct glfs_stat *poststat)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ iov.iov_base = buf;
+ iov.iov_len = count;
+
+ ret = glfs_preadv_common(glfd, &iov, 1, offset, flags, poststat);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_readv, 3.4.0)
+ssize_t
+pub_glfs_readv(struct glfs_fd *glfd, const struct iovec *iov, int count,
+ int flags)
+{
+ ssize_t ret = 0;
+
+ if (glfd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ ret = pub_glfs_preadv(glfd, iov, count, glfd->offset, flags);
+
+ return ret;
+}
+
+struct glfs_io {
+ struct glfs_fd *glfd;
+ int op;
+ off_t offset;
+ struct iovec *iov;
+ int count;
+ int flags;
+ gf_boolean_t oldcb;
+ union {
+ glfs_io_cbk34 fn34;
+ glfs_io_cbk fn;
+ };
+ void *data;
+};
+
+static int
+glfs_io_async_cbk(int op_ret, int op_errno, call_frame_t *frame, void *cookie,
+ struct iovec *iovec, int count, struct iatt *prebuf,
+ struct iatt *postbuf)
+{
+ struct glfs_io *gio = NULL;
+ xlator_t *subvol = NULL;
+ struct glfs *fs = NULL;
+ struct glfs_fd *glfd = NULL;
+ int ret = -1;
+ struct glfs_stat prestat = {}, *prestatp = NULL;
+ struct glfs_stat poststat = {}, *poststatp = NULL;
+
+ GF_VALIDATE_OR_GOTO("gfapi", frame, inval);
+ GF_VALIDATE_OR_GOTO("gfapi", cookie, inval);
+
+ gio = frame->local;
+ frame->local = NULL;
+ subvol = cookie;
+ glfd = gio->glfd;
+ fs = glfd->fs;
+
+ if (!glfs_is_glfd_still_valid(glfd))
+ goto err;
+
+ if (op_ret <= 0) {
+ goto out;
+ } else if (gio->op == GF_FOP_READ) {
+ if (!iovec) {
+ op_ret = -1;
+ op_errno = EINVAL;
+ goto out;
+ }
+
+ op_ret = iov_copy(gio->iov, gio->count, iovec, count);
+ glfd->offset = gio->offset + op_ret;
+ } else if (gio->op == GF_FOP_WRITE) {
+ glfd->offset = gio->offset + gio->iov->iov_len;
+ }
+
+out:
+ errno = op_errno;
+ if (gio->oldcb) {
+ gio->fn34(gio->glfd, op_ret, gio->data);
+ } else {
+ if (prebuf) {
+ prestatp = &prestat;
+ glfs_iatt_to_statx(fs, prebuf, prestatp);
+ }
+
+ if (postbuf) {
+ poststatp = &poststat;
+ glfs_iatt_to_statx(fs, postbuf, poststatp);
+ }
+
+ gio->fn(gio->glfd, op_ret, prestatp, poststatp, gio->data);
+ }
+err:
+ fd_unref(glfd->fd);
+ /* Since the async operation is complete
+ * release the ref taken during the start
+ * of async operation
+ */
+ GF_REF_PUT(glfd);
+
+ GF_FREE(gio->iov);
+ GF_FREE(gio);
+ STACK_DESTROY(frame->root);
+ glfs_subvol_done(fs, subvol);
+
+ ret = 0;
+inval:
+ return ret;
+}
+
+static int
+glfs_preadv_async_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, struct iovec *iovec, int count,
+ struct iatt *stbuf, struct iobref *iobref, dict_t *xdata)
+{
+ glfs_io_async_cbk(op_ret, op_errno, frame, cookie, iovec, count, NULL,
+ stbuf);
+
+ return 0;
+}
+
+static int
+glfs_preadv_async_common(struct glfs_fd *glfd, const struct iovec *iovec,
+ int count, off_t offset, int flags, gf_boolean_t oldcb,
+ glfs_io_cbk fn, void *data)
+{
+ struct glfs_io *gio = NULL;
+ int ret = 0;
+ call_frame_t *frame = NULL;
+ xlator_t *subvol = NULL;
+ struct glfs *fs = NULL;
+ fd_t *fd = NULL;
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ fs = glfd->fs;
+
+ frame = syncop_create_frame(THIS);
+ if (!frame) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gio = GF_CALLOC(1, sizeof(*gio), glfs_mt_glfs_io_t);
+ if (!gio) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gio->iov = iov_dup(iovec, count);
+ if (!gio->iov) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gio->op = GF_FOP_READ;
+ gio->glfd = glfd;
+ gio->count = count;
+ gio->offset = offset;
+ gio->flags = flags;
+ gio->oldcb = oldcb;
+ gio->fn = fn;
+ gio->data = data;
+
+ frame->local = gio;
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ STACK_WIND_COOKIE(frame, glfs_preadv_async_cbk, subvol, subvol,
+ subvol->fops->readv, fd, iov_length(iovec, count), offset,
+ flags, fop_attr);
+
+out:
+ if (ret) {
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ if (gio) {
+ GF_FREE(gio->iov);
+ GF_FREE(gio);
+ }
+ if (frame) {
+ STACK_DESTROY(frame->root);
+ }
+ glfs_subvol_done(fs, subvol);
+ }
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ __GLFS_EXIT_FS;
+
+ return ret;
+
+invalid_fs:
+ return -1;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_preadv_async34, glfs_preadv_async, 3.4.0)
+int
+pub_glfs_preadv_async34(struct glfs_fd *glfd, const struct iovec *iovec,
+ int count, off_t offset, int flags, glfs_io_cbk34 fn,
+ void *data)
+{
+ return glfs_preadv_async_common(glfd, iovec, count, offset, flags, _gf_true,
+ (void *)fn, data);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_preadv_async, 6.0)
+int
+pub_glfs_preadv_async(struct glfs_fd *glfd, const struct iovec *iovec,
+ int count, off_t offset, int flags, glfs_io_cbk fn,
+ void *data)
+{
+ return glfs_preadv_async_common(glfd, iovec, count, offset, flags,
+ _gf_false, fn, data);
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_read_async34, glfs_read_async, 3.4.0)
+int
+pub_glfs_read_async34(struct glfs_fd *glfd, void *buf, size_t count, int flags,
+ glfs_io_cbk34 fn, void *data)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ if (glfd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ iov.iov_base = buf;
+ iov.iov_len = count;
+
+ ret = glfs_preadv_async_common(glfd, &iov, 1, glfd->offset, flags, _gf_true,
+ (void *)fn, data);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_read_async, 6.0)
+int
+pub_glfs_read_async(struct glfs_fd *glfd, void *buf, size_t count, int flags,
+ glfs_io_cbk fn, void *data)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ if (glfd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ iov.iov_base = buf;
+ iov.iov_len = count;
+
+ ret = glfs_preadv_async_common(glfd, &iov, 1, glfd->offset, flags,
+ _gf_false, fn, data);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_pread_async34, glfs_pread_async, 3.4.0)
+int
+pub_glfs_pread_async34(struct glfs_fd *glfd, void *buf, size_t count,
+ off_t offset, int flags, glfs_io_cbk34 fn, void *data)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ iov.iov_base = buf;
+ iov.iov_len = count;
+
+ ret = glfs_preadv_async_common(glfd, &iov, 1, offset, flags, _gf_true,
+ (void *)fn, data);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_pread_async, 6.0)
+int
+pub_glfs_pread_async(struct glfs_fd *glfd, void *buf, size_t count,
+ off_t offset, int flags, glfs_io_cbk fn, void *data)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ iov.iov_base = buf;
+ iov.iov_len = count;
+
+ ret = glfs_preadv_async_common(glfd, &iov, 1, offset, flags, _gf_false, fn,
+ data);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_readv_async34, glfs_readv_async, 3.4.0)
+int
+pub_glfs_readv_async34(struct glfs_fd *glfd, const struct iovec *iov, int count,
+ int flags, glfs_io_cbk34 fn, void *data)
+{
+ ssize_t ret = 0;
+
+ if (glfd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ ret = glfs_preadv_async_common(glfd, iov, count, glfd->offset, flags,
+ _gf_true, (void *)fn, data);
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_readv_async, 6.0)
+int
+pub_glfs_readv_async(struct glfs_fd *glfd, const struct iovec *iov, int count,
+ int flags, glfs_io_cbk fn, void *data)
+{
+ ssize_t ret = 0;
+
+ if (glfd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ ret = glfs_preadv_async_common(glfd, iov, count, glfd->offset, flags,
+ _gf_false, fn, data);
+ return ret;
+}
+
+static ssize_t
+glfs_pwritev_common(struct glfs_fd *glfd, const struct iovec *iovec, int iovcnt,
+ off_t offset, int flags, struct glfs_stat *prestat,
+ struct glfs_stat *poststat)
+{
+ xlator_t *subvol = NULL;
+ int ret = -1;
+ struct iobref *iobref = NULL;
+ struct iobuf *iobuf = NULL;
+ struct iovec iov = {
+ 0,
+ };
+ fd_t *fd = NULL;
+ struct iatt preiatt =
+ {
+ 0,
+ },
+ postiatt = {
+ 0,
+ };
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ ret = iobuf_copy(subvol->ctx->iobuf_pool, iovec, iovcnt, &iobref, &iobuf,
+ &iov);
+ if (ret)
+ goto out;
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_writev(subvol, fd, &iov, 1, offset, iobref, flags, &preiatt,
+ &postiatt, fop_attr, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret >= 0) {
+ if (prestat)
+ glfs_iatt_to_statx(glfd->fs, &preiatt, prestat);
+ if (poststat)
+ glfs_iatt_to_statx(glfd->fs, &postiatt, poststat);
+ }
+
+ if (ret <= 0)
+ goto out;
+
+ glfd->offset = (offset + iov.iov_len);
+out:
+ if (iobuf)
+ iobuf_unref(iobuf);
+ if (iobref)
+ iobref_unref(iobref);
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_copy_file_range, 6.0)
+ssize_t
+pub_glfs_copy_file_range(struct glfs_fd *glfd_in, off64_t *off_in,
+ struct glfs_fd *glfd_out, off64_t *off_out, size_t len,
+ unsigned int flags, struct glfs_stat *statbuf,
+ struct glfs_stat *prestat, struct glfs_stat *poststat)
+{
+ xlator_t *subvol = NULL;
+ int ret = -1;
+ fd_t *fd_in = NULL;
+ fd_t *fd_out = NULL;
+ struct iatt preiatt =
+ {
+ 0,
+ },
+ iattbuf =
+ {
+ 0,
+ },
+ postiatt = {
+ 0,
+ };
+ dict_t *fop_attr = NULL;
+ off64_t pos_in;
+ off64_t pos_out;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd_in, invalid_fs);
+ __GLFS_ENTRY_VALIDATE_FD(glfd_out, invalid_fs);
+
+ GF_REF_GET(glfd_in);
+ GF_REF_GET(glfd_out);
+
+ if (glfd_in->fs != glfd_out->fs) {
+ ret = -1;
+ errno = EXDEV;
+ goto out;
+ }
+
+ subvol = glfs_active_subvol(glfd_in->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd_in = glfs_resolve_fd(glfd_in->fs, subvol, glfd_in);
+ if (!fd_in) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ fd_out = glfs_resolve_fd(glfd_out->fs, subvol, glfd_out);
+ if (!fd_out) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ /*
+ * This is based on how the vfs layer in the kernel handles
+ * copy_file_range call. Upon receiving it follows the
+ * below method to consider the offset.
+ * if (off_in != NULL)
+ * use the value off_in to perform the op
+ * else if off_in == NULL
+ * use the current file offset position to perform the op
+ *
+ * For gfapi, glfd->offset is used. For a freshly opened
+ * fd, the offset is set to 0.
+ */
+ if (off_in)
+ pos_in = *off_in;
+ else
+ pos_in = glfd_in->offset;
+
+ if (off_out)
+ pos_out = *off_out;
+ else
+ pos_out = glfd_out->offset;
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_copy_file_range(subvol, fd_in, pos_in, fd_out, pos_out, len,
+ flags, &iattbuf, &preiatt, &postiatt, fop_attr,
+ NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret >= 0) {
+ pos_in += ret;
+ pos_out += ret;
+
+ if (off_in)
+ *off_in = pos_in;
+ if (off_out)
+ *off_out = pos_out;
+
+ if (statbuf)
+ glfs_iatt_to_statx(glfd_in->fs, &iattbuf, statbuf);
+ if (prestat)
+ glfs_iatt_to_statx(glfd_in->fs, &preiatt, prestat);
+ if (poststat)
+ glfs_iatt_to_statx(glfd_in->fs, &postiatt, poststat);
+ }
+
+ if (ret <= 0)
+ goto out;
+
+ /*
+ * If *off_in is NULL, then there is no offset info that can
+ * obtained from the input argument. Hence follow below method.
+ * If *off_in is NULL, then
+ * glfd->offset = offset + ret;
+ * else
+ * do nothing.
+ *
+ * According to the man page of copy_file_range, if off_in is
+ * NULL, then the offset of the source file is advanced by
+ * the return value of the fop. The same applies to off_out as
+ * well. Otherwise, if *off_in is not NULL, then the offset
+ * is not advanced by the filesystem. The entity which sends
+ * the copy_file_range call is supposed to advance the offset
+ * value in its buffer (pointed to by *off_in or *off_out)
+ * by the return value of copy_file_range.
+ */
+ if (!off_in)
+ glfd_in->offset += ret;
+
+ if (!off_out)
+ glfd_out->offset += ret;
+
+out:
+ if (fd_in)
+ fd_unref(fd_in);
+ if (fd_out)
+ fd_unref(fd_out);
+ if (glfd_in)
+ GF_REF_PUT(glfd_in);
+ if (glfd_out)
+ GF_REF_PUT(glfd_out);
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ glfs_subvol_done(glfd_in->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_pwritev, 3.4.0)
+ssize_t
+pub_glfs_pwritev(struct glfs_fd *glfd, const struct iovec *iovec, int iovcnt,
+ off_t offset, int flags)
+{
+ return glfs_pwritev_common(glfd, iovec, iovcnt, offset, flags, NULL, NULL);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_write, 3.4.0)
+ssize_t
+pub_glfs_write(struct glfs_fd *glfd, const void *buf, size_t count, int flags)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ if (glfd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ iov.iov_base = (void *)buf;
+ iov.iov_len = count;
+
+ ret = pub_glfs_pwritev(glfd, &iov, 1, glfd->offset, flags);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_writev, 3.4.0)
+ssize_t
+pub_glfs_writev(struct glfs_fd *glfd, const struct iovec *iov, int count,
+ int flags)
+{
+ ssize_t ret = 0;
+
+ if (glfd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ ret = pub_glfs_pwritev(glfd, iov, count, glfd->offset, flags);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_pwrite34, glfs_pwrite, 3.4.0)
+ssize_t
+pub_glfs_pwrite34(struct glfs_fd *glfd, const void *buf, size_t count,
+ off_t offset, int flags)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ iov.iov_base = (void *)buf;
+ iov.iov_len = count;
+
+ ret = pub_glfs_pwritev(glfd, &iov, 1, offset, flags);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_pwrite, 6.0)
+ssize_t
+pub_glfs_pwrite(struct glfs_fd *glfd, const void *buf, size_t count,
+ off_t offset, int flags, struct glfs_stat *prestat,
+ struct glfs_stat *poststat)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ iov.iov_base = (void *)buf;
+ iov.iov_len = count;
+
+ ret = glfs_pwritev_common(glfd, &iov, 1, offset, flags, prestat, poststat);
+
+ return ret;
+}
+
+extern glfs_t *
+pub_glfs_from_glfd(glfs_fd_t *);
+
+static int
+glfs_pwritev_async_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+ int op_ret, int op_errno, struct iatt *prebuf,
+ struct iatt *postbuf, dict_t *xdata)
+{
+ glfs_io_async_cbk(op_ret, op_errno, frame, cookie, NULL, 0, prebuf,
+ postbuf);
+
+ return 0;
+}
+
+static int
+glfs_pwritev_async_common(struct glfs_fd *glfd, const struct iovec *iovec,
+ int count, off_t offset, int flags,
+ gf_boolean_t oldcb, glfs_io_cbk fn, void *data)
+{
+ struct glfs_io *gio = NULL;
+ int ret = -1;
+ call_frame_t *frame = NULL;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ struct iobref *iobref = NULL;
+ struct iobuf *iobuf = NULL;
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ /* Need to take explicit ref so that the fd
+ * is not destroyed before the fop is complete
+ */
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ errno = EBADFD;
+ goto out;
+ }
+
+ gio = GF_CALLOC(1, sizeof(*gio), glfs_mt_glfs_io_t);
+ if (!gio) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gio->op = GF_FOP_WRITE;
+ gio->glfd = glfd;
+ gio->offset = offset;
+ gio->flags = flags;
+ gio->oldcb = oldcb;
+ gio->fn = fn;
+ gio->data = data;
+ gio->count = 1;
+ gio->iov = GF_CALLOC(gio->count, sizeof(*(gio->iov)), gf_common_mt_iovec);
+ if (!gio->iov) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ ret = iobuf_copy(subvol->ctx->iobuf_pool, iovec, count, &iobref, &iobuf,
+ gio->iov);
+ if (ret)
+ goto out;
+
+ frame = syncop_create_frame(THIS);
+ if (!frame) {
+ errno = ENOMEM;
+ ret = -1;
+ goto out;
+ }
+
+ frame->local = gio;
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ STACK_WIND_COOKIE(frame, glfs_pwritev_async_cbk, subvol, subvol,
+ subvol->fops->writev, fd, gio->iov, gio->count, offset,
+ flags, iobref, fop_attr);
+
+ ret = 0;
+out:
+ if (ret) {
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ GF_FREE(gio);
+ /*
+ * If there is any error condition check after the frame
+ * creation, we have to destroy the frame root.
+ */
+ glfs_subvol_done(glfd->fs, subvol);
+ }
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ if (iobuf)
+ iobuf_unref(iobuf);
+ if (iobref)
+ iobref_unref(iobref);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_pwritev_async34, glfs_pwritev_async, 3.4.0)
+int
+pub_glfs_pwritev_async34(struct glfs_fd *glfd, const struct iovec *iovec,
+ int count, off_t offset, int flags, glfs_io_cbk34 fn,
+ void *data)
+{
+ return glfs_pwritev_async_common(glfd, iovec, count, offset, flags,
+ _gf_true, (void *)fn, data);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_pwritev_async, 6.0)
+int
+pub_glfs_pwritev_async(struct glfs_fd *glfd, const struct iovec *iovec,
+ int count, off_t offset, int flags, glfs_io_cbk fn,
+ void *data)
+{
+ return glfs_pwritev_async_common(glfd, iovec, count, offset, flags,
+ _gf_false, fn, data);
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_write_async34, glfs_write_async, 3.4.0)
+int
+pub_glfs_write_async34(struct glfs_fd *glfd, const void *buf, size_t count,
+ int flags, glfs_io_cbk34 fn, void *data)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ if (glfd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ iov.iov_base = (void *)buf;
+ iov.iov_len = count;
+
+ ret = glfs_pwritev_async_common(glfd, &iov, 1, glfd->offset, flags,
+ _gf_true, (void *)fn, data);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_write_async, 6.0)
+int
+pub_glfs_write_async(struct glfs_fd *glfd, const void *buf, size_t count,
+ int flags, glfs_io_cbk fn, void *data)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ if (glfd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ iov.iov_base = (void *)buf;
+ iov.iov_len = count;
+
+ ret = glfs_pwritev_async_common(glfd, &iov, 1, glfd->offset, flags,
+ _gf_false, fn, data);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_pwrite_async34, glfs_pwrite_async, 3.4.0)
+int
+pub_glfs_pwrite_async34(struct glfs_fd *glfd, const void *buf, int count,
+ off_t offset, int flags, glfs_io_cbk34 fn, void *data)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ iov.iov_base = (void *)buf;
+ iov.iov_len = count;
+
+ ret = glfs_pwritev_async_common(glfd, &iov, 1, offset, flags, _gf_true,
+ (void *)fn, data);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_pwrite_async, 6.0)
+int
+pub_glfs_pwrite_async(struct glfs_fd *glfd, const void *buf, int count,
+ off_t offset, int flags, glfs_io_cbk fn, void *data)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ iov.iov_base = (void *)buf;
+ iov.iov_len = count;
+
+ ret = glfs_pwritev_async_common(glfd, &iov, 1, offset, flags, _gf_false, fn,
+ data);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_writev_async34, glfs_writev_async, 3.4.0)
+int
+pub_glfs_writev_async34(struct glfs_fd *glfd, const struct iovec *iov,
+ int count, int flags, glfs_io_cbk34 fn, void *data)
+{
+ ssize_t ret = 0;
+
+ if (glfd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ ret = glfs_pwritev_async_common(glfd, iov, count, glfd->offset, flags,
+ _gf_true, (void *)fn, data);
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_writev_async, 6.0)
+int
+pub_glfs_writev_async(struct glfs_fd *glfd, const struct iovec *iov, int count,
+ int flags, glfs_io_cbk fn, void *data)
+{
+ ssize_t ret = 0;
+
+ if (glfd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ ret = glfs_pwritev_async_common(glfd, iov, count, glfd->offset, flags,
+ _gf_false, fn, data);
+ return ret;
+}
+
+static int
+glfs_fsync_common(struct glfs_fd *glfd, struct glfs_stat *prestat,
+ struct glfs_stat *poststat)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ struct iatt preiatt =
+ {
+ 0,
+ },
+ postiatt = {
+ 0,
+ };
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_fsync(subvol, fd, 0, &preiatt, &postiatt, fop_attr, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret >= 0) {
+ if (prestat)
+ glfs_iatt_to_statx(glfd->fs, &preiatt, prestat);
+ if (poststat)
+ glfs_iatt_to_statx(glfd->fs, &postiatt, poststat);
+ }
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_fsync34, glfs_fsync, 3.4.0)
+int
+pub_glfs_fsync34(struct glfs_fd *glfd)
+{
+ return glfs_fsync_common(glfd, NULL, NULL);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fsync, 6.0)
+int
+pub_glfs_fsync(struct glfs_fd *glfd, struct glfs_stat *prestat,
+ struct glfs_stat *poststat)
+{
+ return glfs_fsync_common(glfd, prestat, poststat);
+}
+
+static int
+glfs_fsync_async_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+ struct iatt *postbuf, dict_t *xdata)
+{
+ glfs_io_async_cbk(op_ret, op_errno, frame, cookie, NULL, 0, prebuf,
+ postbuf);
+
+ return 0;
+}
+
+static int
+glfs_fsync_async_common(struct glfs_fd *glfd, gf_boolean_t oldcb,
+ glfs_io_cbk fn, void *data, int dataonly)
+{
+ struct glfs_io *gio = NULL;
+ int ret = 0;
+ call_frame_t *frame = NULL;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+
+ /* Need to take explicit ref so that the fd
+ * is not destroyed before the fop is complete
+ */
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ frame = syncop_create_frame(THIS);
+ if (!frame) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gio = GF_CALLOC(1, sizeof(*gio), glfs_mt_glfs_io_t);
+ if (!gio) {
+ errno = ENOMEM;
+ ret = -1;
+ goto out;
+ }
+
+ gio->op = GF_FOP_FSYNC;
+ gio->glfd = glfd;
+ gio->flags = dataonly;
+ gio->oldcb = oldcb;
+ gio->fn = fn;
+ gio->data = data;
+
+ frame->local = gio;
+
+ STACK_WIND_COOKIE(frame, glfs_fsync_async_cbk, subvol, subvol,
+ subvol->fops->fsync, fd, dataonly, NULL);
+
+out:
+ if (ret) {
+ if (fd)
+ fd_unref(fd);
+ GF_REF_PUT(glfd);
+ GF_FREE(gio);
+ if (frame)
+ STACK_DESTROY(frame->root);
+ glfs_subvol_done(glfd->fs, subvol);
+ }
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_fsync_async34, glfs_fsync_async, 3.4.0)
+int
+pub_glfs_fsync_async34(struct glfs_fd *glfd, glfs_io_cbk34 fn, void *data)
+{
+ int ret = -1;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ ret = glfs_fsync_async_common(glfd, _gf_true, (void *)fn, data, 0);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fsync_async, 6.0)
+int
+pub_glfs_fsync_async(struct glfs_fd *glfd, glfs_io_cbk fn, void *data)
+{
+ int ret = -1;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ ret = glfs_fsync_async_common(glfd, _gf_false, fn, data, 0);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+static int
+glfs_fdatasync_common(struct glfs_fd *glfd, struct glfs_stat *prestat,
+ struct glfs_stat *poststat)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ struct iatt preiatt =
+ {
+ 0,
+ },
+ postiatt = {
+ 0,
+ };
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_fsync(subvol, fd, 1, &preiatt, &postiatt, fop_attr, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret >= 0) {
+ if (prestat)
+ glfs_iatt_to_statx(glfd->fs, &preiatt, prestat);
+ if (poststat)
+ glfs_iatt_to_statx(glfd->fs, &postiatt, poststat);
+ }
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_fdatasync34, glfs_fdatasync, 3.4.0)
+int
+pub_glfs_fdatasync34(struct glfs_fd *glfd)
+{
+ return glfs_fdatasync_common(glfd, NULL, NULL);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fdatasync, 6.0)
+int
+pub_glfs_fdatasync(struct glfs_fd *glfd, struct glfs_stat *prestat,
+ struct glfs_stat *poststat)
+{
+ return glfs_fdatasync_common(glfd, prestat, poststat);
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_fdatasync_async34, glfs_fdatasync_async, 3.4.0)
+int
+pub_glfs_fdatasync_async34(struct glfs_fd *glfd, glfs_io_cbk34 fn, void *data)
+{
+ int ret = -1;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ ret = glfs_fsync_async_common(glfd, _gf_true, (void *)fn, data, 1);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fdatasync_async, 6.0)
+int
+pub_glfs_fdatasync_async(struct glfs_fd *glfd, glfs_io_cbk fn, void *data)
+{
+ int ret = -1;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ ret = glfs_fsync_async_common(glfd, _gf_false, fn, data, 1);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+static int
+glfs_ftruncate_common(struct glfs_fd *glfd, off_t offset,
+ struct glfs_stat *prestat, struct glfs_stat *poststat)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ struct iatt preiatt =
+ {
+ 0,
+ },
+ postiatt = {
+ 0,
+ };
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_ftruncate(subvol, fd, offset, &preiatt, &postiatt, fop_attr,
+ NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret >= 0) {
+ if (prestat)
+ glfs_iatt_to_statx(glfd->fs, &preiatt, prestat);
+ if (poststat)
+ glfs_iatt_to_statx(glfd->fs, &postiatt, poststat);
+ }
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_ftruncate34, glfs_ftruncate, 3.4.0)
+int
+pub_glfs_ftruncate34(struct glfs_fd *glfd, off_t offset)
+{
+ return glfs_ftruncate_common(glfd, offset, NULL, NULL);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_ftruncate, 6.0)
+int
+pub_glfs_ftruncate(struct glfs_fd *glfd, off_t offset,
+ struct glfs_stat *prestat, struct glfs_stat *poststat)
+{
+ return glfs_ftruncate_common(glfd, offset, prestat, poststat);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_truncate, 3.7.15)
+int
+pub_glfs_truncate(struct glfs *fs, const char *path, off_t length)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ ret = syncop_truncate(subvol, &loc, length, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+out:
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+static int
+glfs_ftruncate_async_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct iatt *prebuf,
+ struct iatt *postbuf, dict_t *xdata)
+{
+ glfs_io_async_cbk(op_ret, op_errno, frame, cookie, NULL, 0, prebuf,
+ postbuf);
+
+ return 0;
+}
+
+static int
+glfs_ftruncate_async_common(struct glfs_fd *glfd, off_t offset,
+ gf_boolean_t oldcb, glfs_io_cbk fn, void *data)
+{
+ struct glfs_io *gio = NULL;
+ int ret = -1;
+ call_frame_t *frame = NULL;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ /* Need to take explicit ref so that the fd
+ * is not destroyed before the fop is complete
+ */
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ errno = EBADFD;
+ goto out;
+ }
+
+ frame = syncop_create_frame(THIS);
+ if (!frame) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gio = GF_CALLOC(1, sizeof(*gio), glfs_mt_glfs_io_t);
+ if (!gio) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gio->op = GF_FOP_FTRUNCATE;
+ gio->glfd = glfd;
+ gio->offset = offset;
+ gio->oldcb = oldcb;
+ gio->fn = fn;
+ gio->data = data;
+
+ frame->local = gio;
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ STACK_WIND_COOKIE(frame, glfs_ftruncate_async_cbk, subvol, subvol,
+ subvol->fops->ftruncate, fd, offset, fop_attr);
+
+ ret = 0;
+
+out:
+ if (ret) {
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ GF_FREE(gio);
+ if (frame)
+ STACK_DESTROY(frame->root);
+ glfs_subvol_done(glfd->fs, subvol);
+ }
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_ftruncate_async34, glfs_ftruncate_async, 3.4.0)
+int
+pub_glfs_ftruncate_async34(struct glfs_fd *glfd, off_t offset, glfs_io_cbk34 fn,
+ void *data)
+{
+ return glfs_ftruncate_async_common(glfd, offset, _gf_true, (void *)fn,
+ data);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_ftruncate_async, 6.0)
+int
+pub_glfs_ftruncate_async(struct glfs_fd *glfd, off_t offset, glfs_io_cbk fn,
+ void *data)
+{
+ return glfs_ftruncate_async_common(glfd, offset, _gf_false, fn, data);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_access, 3.4.0)
+int
+pub_glfs_access(struct glfs *fs, const char *path, int mode)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ ret = syncop_access(subvol, &loc, mode, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+out:
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_symlink, 3.4.0)
+int
+pub_glfs_symlink(struct glfs *fs, const char *data, const char *path)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ uuid_t gfid;
+ dict_t *xattr_req = NULL;
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ xattr_req = dict_new();
+ if (!xattr_req) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gf_uuid_generate(gfid);
+ ret = dict_set_gfuuid(xattr_req, "gfid-req", gfid, true);
+ if (ret) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+retry:
+ ret = glfs_lresolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (loc.inode) {
+ errno = EEXIST;
+ ret = -1;
+ goto out;
+ }
+
+ if (ret == -1 && errno != ENOENT)
+ /* Any other type of error is fatal */
+ goto out;
+
+ if (ret == -1 && errno == ENOENT && !loc.parent)
+ /* The parent directory or an ancestor even
+ higher does not exist
+ */
+ goto out;
+
+ /* ret == -1 && errno == ENOENT */
+ loc.inode = inode_new(loc.parent->table);
+ if (!loc.inode) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ ret = syncop_symlink(subvol, &loc, data, &iatt, xattr_req, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret == 0)
+ ret = glfs_loc_link(&loc, &iatt);
+out:
+ loc_wipe(&loc);
+
+ if (xattr_req)
+ dict_unref(xattr_req);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_readlink, 3.4.0)
+int
+pub_glfs_readlink(struct glfs *fs, const char *path, char *buf, size_t bufsiz)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+ char *linkval = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ ret = glfs_lresolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ if (iatt.ia_type != IA_IFLNK) {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ ret = syncop_readlink(subvol, &loc, &linkval, bufsiz, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+ if (ret > 0) {
+ memcpy(buf, linkval, ret);
+ GF_FREE(linkval);
+ }
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+out:
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_mknod, 3.4.0)
+int
+pub_glfs_mknod(struct glfs *fs, const char *path, mode_t mode, dev_t dev)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ uuid_t gfid;
+ dict_t *xattr_req = NULL;
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ xattr_req = dict_new();
+ if (!xattr_req) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gf_uuid_generate(gfid);
+ ret = dict_set_gfuuid(xattr_req, "gfid-req", gfid, true);
+ if (ret) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+retry:
+ ret = glfs_lresolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (loc.inode) {
+ errno = EEXIST;
+ ret = -1;
+ goto out;
+ }
+
+ if (ret == -1 && errno != ENOENT)
+ /* Any other type of error is fatal */
+ goto out;
+
+ if (ret == -1 && errno == ENOENT && !loc.parent)
+ /* The parent directory or an ancestor even
+ higher does not exist
+ */
+ goto out;
+
+ /* ret == -1 && errno == ENOENT */
+ loc.inode = inode_new(loc.parent->table);
+ if (!loc.inode) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ ret = syncop_mknod(subvol, &loc, mode, dev, &iatt, xattr_req, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret == 0)
+ ret = glfs_loc_link(&loc, &iatt);
+out:
+ loc_wipe(&loc);
+
+ if (xattr_req)
+ dict_unref(xattr_req);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_mkdir, 3.4.0)
+int
+pub_glfs_mkdir(struct glfs *fs, const char *path, mode_t mode)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ uuid_t gfid;
+ dict_t *xattr_req = NULL;
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ xattr_req = dict_new();
+ if (!xattr_req) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gf_uuid_generate(gfid);
+ ret = dict_set_gfuuid(xattr_req, "gfid-req", gfid, true);
+ if (ret) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+retry:
+ ret = glfs_lresolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (loc.inode) {
+ errno = EEXIST;
+ ret = -1;
+ goto out;
+ }
+
+ if (ret == -1 && errno != ENOENT)
+ /* Any other type of error is fatal */
+ goto out;
+
+ if (ret == -1 && errno == ENOENT && !loc.parent)
+ /* The parent directory or an ancestor even
+ higher does not exist
+ */
+ goto out;
+
+ /* ret == -1 && errno == ENOENT */
+ loc.inode = inode_new(loc.parent->table);
+ if (!loc.inode) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ ret = syncop_mkdir(subvol, &loc, mode, &iatt, xattr_req, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret == 0)
+ ret = glfs_loc_link(&loc, &iatt);
+out:
+ loc_wipe(&loc);
+
+ if (xattr_req)
+ dict_unref(xattr_req);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_unlink, 3.4.0)
+int
+pub_glfs_unlink(struct glfs *fs, const char *path)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ ret = glfs_lresolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ if (iatt.ia_type == IA_IFDIR) {
+ ret = -1;
+ errno = EISDIR;
+ goto out;
+ }
+
+ /* TODO: Add leaseid */
+ ret = syncop_unlink(subvol, &loc, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret == 0)
+ ret = glfs_loc_unlink(&loc);
+out:
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_rmdir, 3.4.0)
+int
+pub_glfs_rmdir(struct glfs *fs, const char *path)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ ret = glfs_lresolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ if (iatt.ia_type != IA_IFDIR) {
+ ret = -1;
+ errno = ENOTDIR;
+ goto out;
+ }
+
+ ret = syncop_rmdir(subvol, &loc, 0, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret == 0)
+ ret = glfs_loc_unlink(&loc);
+out:
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_rename, 3.4.0)
+int
+pub_glfs_rename(struct glfs *fs, const char *oldpath, const char *newpath)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t oldloc = {
+ 0,
+ };
+ loc_t newloc = {
+ 0,
+ };
+ struct iatt oldiatt = {
+ 0,
+ };
+ struct iatt newiatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ ret = glfs_lresolve(fs, subvol, oldpath, &oldloc, &oldiatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &oldloc, retry);
+
+ if (ret)
+ goto out;
+retrynew:
+ ret = glfs_lresolve(fs, subvol, newpath, &newloc, &newiatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &newloc, retrynew);
+
+ if (ret && errno != ENOENT && newloc.parent)
+ goto out;
+
+ if (newiatt.ia_type != IA_INVAL) {
+ if ((oldiatt.ia_type == IA_IFDIR) != (newiatt.ia_type == IA_IFDIR)) {
+ /* Either both old and new must be dirs,
+ * or both must be non-dirs. Else, fail.
+ */
+ ret = -1;
+ errno = EISDIR;
+ goto out;
+ }
+ }
+
+ /* TODO: - check if new or old is a prefix of the other, and fail EINVAL
+ * - Add leaseid */
+
+ ret = syncop_rename(subvol, &oldloc, &newloc, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret == -1 && errno == ESTALE) {
+ if (reval < DEFAULT_REVAL_COUNT) {
+ reval++;
+ loc_wipe(&oldloc);
+ loc_wipe(&newloc);
+ goto retry;
+ }
+ }
+
+ if (ret == 0) {
+ inode_rename(oldloc.parent->table, oldloc.parent, oldloc.name,
+ newloc.parent, newloc.name, oldloc.inode, &oldiatt);
+
+ if (newloc.inode && !inode_has_dentry(newloc.inode))
+ inode_forget(newloc.inode, 0);
+ }
+out:
+ loc_wipe(&oldloc);
+ loc_wipe(&newloc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_link, 3.4.0)
+int
+pub_glfs_link(struct glfs *fs, const char *oldpath, const char *newpath)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t oldloc = {
+ 0,
+ };
+ loc_t newloc = {
+ 0,
+ };
+ struct iatt oldiatt = {
+ 0,
+ };
+ struct iatt newiatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ ret = glfs_lresolve(fs, subvol, oldpath, &oldloc, &oldiatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &oldloc, retry);
+
+ if (ret)
+ goto out;
+retrynew:
+ ret = glfs_lresolve(fs, subvol, newpath, &newloc, &newiatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &newloc, retrynew);
+
+ if (ret == 0) {
+ ret = -1;
+ errno = EEXIST;
+ goto out;
+ }
+
+ if (oldiatt.ia_type == IA_IFDIR) {
+ ret = -1;
+ errno = EISDIR;
+ goto out;
+ }
+
+ /* Filling the inode of the hard link to be same as that of the
+ original file
+ */
+ if (newloc.inode) {
+ inode_unref(newloc.inode);
+ newloc.inode = NULL;
+ }
+ newloc.inode = inode_ref(oldloc.inode);
+
+ ret = syncop_link(subvol, &oldloc, &newloc, &newiatt, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret == -1 && errno == ESTALE) {
+ loc_wipe(&oldloc);
+ loc_wipe(&newloc);
+ if (reval--)
+ goto retry;
+ }
+
+ if (ret == 0)
+ ret = glfs_loc_link(&newloc, &newiatt);
+out:
+ loc_wipe(&oldloc);
+ loc_wipe(&newloc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_opendir, 3.4.0)
+struct glfs_fd *
+pub_glfs_opendir(struct glfs *fs, const char *path)
+{
+ int ret = -1;
+ struct glfs_fd *glfd = NULL;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ glfd = glfs_fd_new(fs);
+ if (!glfd)
+ goto out;
+
+ INIT_LIST_HEAD(&glfd->entries);
+retry:
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ if (!IA_ISDIR(iatt.ia_type)) {
+ ret = -1;
+ errno = ENOTDIR;
+ goto out;
+ }
+
+ if (glfd->fd) {
+ /* Retry. Safe to touch glfd->fd as we
+ still have not glfs_fd_bind() yet.
+ */
+ fd_unref(glfd->fd);
+ glfd->fd = NULL;
+ }
+
+ glfd->fd = fd_create(loc.inode, getpid());
+ if (!glfd->fd) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ ret = syncop_opendir(subvol, &loc, glfd->fd, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+out:
+ loc_wipe(&loc);
+
+ if (ret && glfd) {
+ GF_REF_PUT(glfd);
+ glfd = NULL;
+ } else if (glfd) {
+ glfd_set_state_bind(glfd);
+ }
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return glfd;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_closedir, 3.4.0)
+int
+pub_glfs_closedir(struct glfs_fd *glfd)
+{
+ int ret = -1;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ gf_dirent_free(list_entry(&glfd->entries, gf_dirent_t, list));
+
+ glfs_mark_glfd_for_deletion(glfd);
+
+ __GLFS_EXIT_FS;
+
+ ret = 0;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_telldir, 3.4.0)
+long
+pub_glfs_telldir(struct glfs_fd *fd)
+{
+ if (fd == NULL) {
+ errno = EBADF;
+ return -1;
+ }
+
+ return fd->offset;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_seekdir, 3.4.0)
+void
+pub_glfs_seekdir(struct glfs_fd *fd, long offset)
+{
+ gf_dirent_t *entry = NULL;
+ gf_dirent_t *tmp = NULL;
+
+ if (fd == NULL) {
+ errno = EBADF;
+ return;
+ }
+
+ if (fd->offset == offset)
+ return;
+
+ fd->offset = offset;
+ fd->next = NULL;
+
+ list_for_each_entry_safe(entry, tmp, &fd->entries, list)
+ {
+ if (entry->d_off != offset)
+ continue;
+
+ if (&tmp->list != &fd->entries) {
+ /* found! */
+ fd->next = tmp;
+ return;
+ }
+ }
+ /* could not find entry at requested offset in the cache.
+ next readdir_r() will result in glfd_entry_refresh()
+ */
+}
+
+static int
+glfs_discard_async_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno,
+ struct iatt *preop_stbuf, struct iatt *postop_stbuf,
+ dict_t *xdata)
+{
+ glfs_io_async_cbk(op_ret, op_errno, frame, cookie, NULL, 0, preop_stbuf,
+ postop_stbuf);
+
+ return 0;
+}
+
+static int
+glfs_discard_async_common(struct glfs_fd *glfd, off_t offset, size_t len,
+ gf_boolean_t oldcb, glfs_io_cbk fn, void *data)
+{
+ struct glfs_io *gio = NULL;
+ int ret = -1;
+ call_frame_t *frame = NULL;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ /* Need to take explicit ref so that the fd
+ * is not destroyed before the fop is complete
+ */
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ errno = EBADFD;
+ goto out;
+ }
+
+ frame = syncop_create_frame(THIS);
+ if (!frame) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gio = GF_CALLOC(1, sizeof(*gio), glfs_mt_glfs_io_t);
+ if (!gio) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gio->op = GF_FOP_DISCARD;
+ gio->glfd = glfd;
+ gio->offset = offset;
+ gio->count = len;
+ gio->oldcb = oldcb;
+ gio->fn = fn;
+ gio->data = data;
+
+ frame->local = gio;
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ STACK_WIND_COOKIE(frame, glfs_discard_async_cbk, subvol, subvol,
+ subvol->fops->discard, fd, offset, len, fop_attr);
+
+ ret = 0;
+out:
+ if (ret) {
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ GF_FREE(gio);
+ if (frame)
+ STACK_DESTROY(frame->root);
+ glfs_subvol_done(glfd->fs, subvol);
+ }
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_discard_async35, glfs_discard_async, 3.5.0)
+int
+pub_glfs_discard_async35(struct glfs_fd *glfd, off_t offset, size_t len,
+ glfs_io_cbk34 fn, void *data)
+{
+ return glfs_discard_async_common(glfd, offset, len, _gf_true, (void *)fn,
+ data);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_discard_async, 6.0)
+int
+pub_glfs_discard_async(struct glfs_fd *glfd, off_t offset, size_t len,
+ glfs_io_cbk fn, void *data)
+{
+ return glfs_discard_async_common(glfd, offset, len, _gf_false, fn, data);
+}
+
+static int
+glfs_zerofill_async_cbk(call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno,
+ struct iatt *preop_stbuf, struct iatt *postop_stbuf,
+ dict_t *xdata)
+{
+ glfs_io_async_cbk(op_ret, op_errno, frame, cookie, NULL, 0, preop_stbuf,
+ postop_stbuf);
+
+ return 0;
+}
+
+static int
+glfs_zerofill_async_common(struct glfs_fd *glfd, off_t offset, off_t len,
+ gf_boolean_t oldcb, glfs_io_cbk fn, void *data)
+{
+ struct glfs_io *gio = NULL;
+ int ret = -1;
+ call_frame_t *frame = NULL;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ /* Need to take explicit ref so that the fd
+ * is not destroyed before the fop is complete
+ */
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ errno = EBADFD;
+ goto out;
+ }
+
+ frame = syncop_create_frame(THIS);
+ if (!frame) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gio = GF_CALLOC(1, sizeof(*gio), glfs_mt_glfs_io_t);
+ if (!gio) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gio->op = GF_FOP_ZEROFILL;
+ gio->glfd = glfd;
+ gio->offset = offset;
+ gio->count = len;
+ gio->oldcb = oldcb;
+ gio->fn = fn;
+ gio->data = data;
+
+ frame->local = gio;
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ STACK_WIND_COOKIE(frame, glfs_zerofill_async_cbk, subvol, subvol,
+ subvol->fops->zerofill, fd, offset, len, fop_attr);
+ ret = 0;
+out:
+ if (ret) {
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ GF_FREE(gio);
+ if (frame)
+ STACK_DESTROY(frame->root);
+ glfs_subvol_done(glfd->fs, subvol);
+ }
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_zerofill_async35, glfs_zerofill_async, 3.5.0)
+int
+pub_glfs_zerofill_async35(struct glfs_fd *glfd, off_t offset, off_t len,
+ glfs_io_cbk34 fn, void *data)
+{
+ return glfs_zerofill_async_common(glfd, offset, len, _gf_true, (void *)fn,
+ data);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_zerofill_async, 6.0)
+int
+pub_glfs_zerofill_async(struct glfs_fd *glfd, off_t offset, off_t len,
+ glfs_io_cbk fn, void *data)
+{
+ return glfs_zerofill_async_common(glfd, offset, len, _gf_false, fn, data);
+}
+
+void
+gf_dirent_to_dirent(gf_dirent_t *gf_dirent, struct dirent *dirent)
+{
+ dirent->d_ino = gf_dirent->d_ino;
+
+#ifdef _DIRENT_HAVE_D_OFF
+ dirent->d_off = gf_dirent->d_off;
+#endif
+
+#ifdef _DIRENT_HAVE_D_TYPE
+ dirent->d_type = gf_dirent->d_type;
+#endif
+
+#ifdef _DIRENT_HAVE_D_NAMLEN
+ dirent->d_namlen = strlen(gf_dirent->d_name);
+#endif
+
+ snprintf(dirent->d_name, NAME_MAX + 1, "%s", gf_dirent->d_name);
+}
+
+int
+glfd_entry_refresh(struct glfs_fd *glfd, int plus)
+{
+ xlator_t *subvol = NULL;
+ gf_dirent_t entries;
+ gf_dirent_t old;
+ gf_dirent_t *entry = NULL;
+ int ret = -1;
+ fd_t *fd = NULL;
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ if (fd->inode->ia_type != IA_IFDIR) {
+ ret = -1;
+ errno = EBADF;
+ goto out;
+ }
+
+ INIT_LIST_HEAD(&entries.list);
+ INIT_LIST_HEAD(&old.list);
+
+ if (plus)
+ ret = syncop_readdirp(subvol, fd, 131072, glfd->offset, &entries, NULL,
+ NULL);
+ else
+ ret = syncop_readdir(subvol, fd, 131072, glfd->offset, &entries, NULL,
+ NULL);
+ DECODE_SYNCOP_ERR(ret);
+ if (ret >= 0) {
+ if (plus) {
+ list_for_each_entry(entry, &entries.list, list)
+ {
+ if ((!entry->inode && (!IA_ISDIR(entry->d_stat.ia_type))) ||
+ ((entry->d_stat.ia_ctime == 0) &&
+ strcmp(entry->d_name, ".") &&
+ strcmp(entry->d_name, ".."))) {
+ /* entry->inode for directories will be
+ * always set to null to force a lookup
+ * on the dentry. Hence to not degrade
+ * readdir performance, we skip lookups
+ * for directory entries. Also we will have
+ * proper stat if directory present on
+ * hashed subvolume.
+ *
+ * In addition, if the stat is invalid, force
+ * lookup to fetch proper stat.
+ */
+ gf_fill_iatt_for_dirent(entry, fd->inode, subvol);
+ }
+ }
+
+ gf_link_inodes_from_dirent(THIS, fd->inode, &entries);
+ }
+
+ list_splice_init(&glfd->entries, &old.list);
+ list_splice_init(&entries.list, &glfd->entries);
+
+ /* spurious errno is dangerous for glfd_entry_next() */
+ errno = 0;
+ }
+
+ if (ret > 0)
+ glfd->next = list_entry(glfd->entries.next, gf_dirent_t, list);
+
+ gf_dirent_free(&old);
+out:
+ if (fd)
+ fd_unref(fd);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ return ret;
+}
+
+gf_dirent_t *
+glfd_entry_next(struct glfs_fd *glfd, int plus)
+{
+ gf_dirent_t *entry = NULL;
+ int ret = -1;
+
+ if (!glfd->offset || !glfd->next) {
+ ret = glfd_entry_refresh(glfd, plus);
+ if (ret < 0)
+ return NULL;
+ }
+
+ entry = glfd->next;
+ if (!entry)
+ return NULL;
+
+ if (&entry->next->list == &glfd->entries)
+ glfd->next = NULL;
+ else
+ glfd->next = entry->next;
+
+ glfd->offset = entry->d_off;
+
+ return entry;
+}
+
+struct dirent *
+glfs_readdirbuf_get(struct glfs_fd *glfd)
+{
+ struct dirent *buf = NULL;
+
+ LOCK(&glfd->fd->lock);
+ {
+ buf = glfd->readdirbuf;
+ if (buf) {
+ memset(buf, 0, READDIRBUF_SIZE);
+ goto unlock;
+ }
+
+ buf = GF_CALLOC(1, READDIRBUF_SIZE, glfs_mt_readdirbuf_t);
+ if (!buf) {
+ errno = ENOMEM;
+ goto unlock;
+ }
+
+ glfd->readdirbuf = buf;
+ }
+unlock:
+ UNLOCK(&glfd->fd->lock);
+
+ return buf;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_readdirplus_r, 3.4.0)
+int
+pub_glfs_readdirplus_r(struct glfs_fd *glfd, struct stat *stat,
+ struct dirent *ext, struct dirent **res)
+{
+ int ret = 0;
+ gf_dirent_t *entry = NULL;
+ struct dirent *buf = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ errno = 0;
+
+ if (ext)
+ buf = ext;
+ else
+ buf = glfs_readdirbuf_get(glfd);
+
+ if (!buf) {
+ errno = ENOMEM;
+ ret = -1;
+ goto out;
+ }
+
+ entry = glfd_entry_next(glfd, !!stat);
+ if (errno)
+ ret = -1;
+
+ if (res) {
+ if (entry)
+ *res = buf;
+ else
+ *res = NULL;
+ }
+
+ if (entry) {
+ gf_dirent_to_dirent(entry, buf);
+ if (stat)
+ glfs_iatt_to_stat(glfd->fs, &entry->d_stat, stat);
+ }
+
+out:
+ if (glfd)
+ GF_REF_PUT(glfd);
+
+ __GLFS_EXIT_FS;
+
+ return ret;
+
+invalid_fs:
+ return -1;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_readdir_r, 3.4.0)
+int
+pub_glfs_readdir_r(struct glfs_fd *glfd, struct dirent *buf,
+ struct dirent **res)
+{
+ return pub_glfs_readdirplus_r(glfd, 0, buf, res);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_readdirplus, 3.5.0)
+struct dirent *
+pub_glfs_readdirplus(struct glfs_fd *glfd, struct stat *stat)
+{
+ struct dirent *res = NULL;
+ int ret = -1;
+
+ ret = pub_glfs_readdirplus_r(glfd, stat, NULL, &res);
+ if (ret)
+ return NULL;
+
+ return res;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_readdir, 3.5.0)
+struct dirent *
+pub_glfs_readdir(struct glfs_fd *glfd)
+{
+ return pub_glfs_readdirplus(glfd, NULL);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_statvfs, 3.4.0)
+int
+pub_glfs_statvfs(struct glfs *fs, const char *path, struct statvfs *buf)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ ret = syncop_statfs(subvol, &loc, buf, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+out:
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_setattr, 6.0)
+int
+pub_glfs_setattr(struct glfs *fs, const char *path, struct glfs_stat *stat,
+ int follow)
+{
+ int ret = -1;
+ int glvalid;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt riatt = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ GF_VALIDATE_OR_GOTO("glfs_setattr", stat, out);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ if (follow)
+ ret = glfs_resolve(fs, subvol, path, &loc, &riatt, reval);
+ else
+ ret = glfs_lresolve(fs, subvol, path, &loc, &riatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ glfs_iatt_from_statx(&iatt, stat);
+ glfsflags_from_gfapiflags(stat, &glvalid);
+
+ /* TODO : Add leaseid */
+ ret = syncop_setattr(subvol, &loc, &iatt, glvalid, 0, 0, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+out:
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fsetattr, 6.0)
+int
+pub_glfs_fsetattr(struct glfs_fd *glfd, struct glfs_stat *stat)
+{
+ int ret = -1;
+ int glvalid;
+ struct iatt iatt = {
+ 0,
+ };
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ GF_VALIDATE_OR_GOTO("glfs_fsetattr", stat, out);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ glfs_iatt_from_statx(&iatt, stat);
+ glfsflags_from_gfapiflags(stat, &glvalid);
+
+ /* TODO : Add leaseid */
+ ret = syncop_fsetattr(subvol, fd, &iatt, glvalid, 0, 0, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_chmod, 3.4.0)
+int
+pub_glfs_chmod(struct glfs *fs, const char *path, mode_t mode)
+{
+ int ret = -1;
+ struct glfs_stat stat = {
+ 0,
+ };
+
+ stat.glfs_st_mode = mode;
+ stat.glfs_st_mask = GLFS_STAT_MODE;
+
+ ret = glfs_setattr(fs, path, &stat, 1);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fchmod, 3.4.0)
+int
+pub_glfs_fchmod(struct glfs_fd *glfd, mode_t mode)
+{
+ int ret = -1;
+ struct glfs_stat stat = {
+ 0,
+ };
+
+ stat.glfs_st_mode = mode;
+ stat.glfs_st_mask = GLFS_STAT_MODE;
+
+ ret = glfs_fsetattr(glfd, &stat);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_chown, 3.4.0)
+int
+pub_glfs_chown(struct glfs *fs, const char *path, uid_t uid, gid_t gid)
+{
+ int ret = 0;
+ struct glfs_stat stat = {
+ 0,
+ };
+
+ if (uid != (uid_t)-1) {
+ stat.glfs_st_uid = uid;
+ stat.glfs_st_mask = GLFS_STAT_UID;
+ }
+
+ if (gid != (uid_t)-1) {
+ stat.glfs_st_gid = gid;
+ stat.glfs_st_mask = stat.glfs_st_mask | GLFS_STAT_GID;
+ }
+
+ if (stat.glfs_st_mask)
+ ret = glfs_setattr(fs, path, &stat, 1);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_lchown, 3.4.0)
+int
+pub_glfs_lchown(struct glfs *fs, const char *path, uid_t uid, gid_t gid)
+{
+ int ret = 0;
+ struct glfs_stat stat = {
+ 0,
+ };
+
+ if (uid != (uid_t)-1) {
+ stat.glfs_st_uid = uid;
+ stat.glfs_st_mask = GLFS_STAT_UID;
+ }
+
+ if (gid != (uid_t)-1) {
+ stat.glfs_st_gid = gid;
+ stat.glfs_st_mask = stat.glfs_st_mask | GLFS_STAT_GID;
+ }
+
+ if (stat.glfs_st_mask)
+ ret = glfs_setattr(fs, path, &stat, 0);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fchown, 3.4.0)
+int
+pub_glfs_fchown(struct glfs_fd *glfd, uid_t uid, gid_t gid)
+{
+ int ret = 0;
+ struct glfs_stat stat = {
+ 0,
+ };
+
+ if (uid != (uid_t)-1) {
+ stat.glfs_st_uid = uid;
+ stat.glfs_st_mask = GLFS_STAT_UID;
+ }
+
+ if (gid != (uid_t)-1) {
+ stat.glfs_st_gid = gid;
+ stat.glfs_st_mask = stat.glfs_st_mask | GLFS_STAT_GID;
+ }
+
+ if (stat.glfs_st_mask)
+ ret = glfs_fsetattr(glfd, &stat);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_utimens, 3.4.0)
+int
+pub_glfs_utimens(struct glfs *fs, const char *path,
+ const struct timespec times[2])
+{
+ int ret = -1;
+ struct glfs_stat stat = {
+ 0,
+ };
+
+ stat.glfs_st_atime = times[0];
+ stat.glfs_st_mtime = times[1];
+
+ stat.glfs_st_mask = GLFS_STAT_ATIME | GLFS_STAT_MTIME;
+
+ ret = glfs_setattr(fs, path, &stat, 1);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_lutimens, 3.4.0)
+int
+pub_glfs_lutimens(struct glfs *fs, const char *path,
+ const struct timespec times[2])
+{
+ int ret = -1;
+ struct glfs_stat stat = {
+ 0,
+ };
+
+ stat.glfs_st_atime = times[0];
+ stat.glfs_st_mtime = times[1];
+
+ stat.glfs_st_mask = GLFS_STAT_ATIME | GLFS_STAT_MTIME;
+
+ ret = glfs_setattr(fs, path, &stat, 0);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_futimens, 3.4.0)
+int
+pub_glfs_futimens(struct glfs_fd *glfd, const struct timespec times[2])
+{
+ int ret = -1;
+ struct glfs_stat stat = {
+ 0,
+ };
+
+ stat.glfs_st_atime = times[0];
+ stat.glfs_st_mtime = times[1];
+
+ stat.glfs_st_mask = GLFS_STAT_ATIME | GLFS_STAT_MTIME;
+
+ ret = glfs_fsetattr(glfd, &stat);
+
+ return ret;
+}
+
+int
+glfs_getxattr_process(void *value, size_t size, dict_t *xattr, const char *name)
+{
+ data_t *data = NULL;
+ int ret = -1;
+
+ data = dict_get(xattr, (char *)name);
+ if (!data) {
+ errno = ENODATA;
+ ret = -1;
+ goto out;
+ }
+
+ ret = data->len;
+ if (!value || !size)
+ goto out;
+
+ if (size < ret) {
+ ret = -1;
+ errno = ERANGE;
+ goto out;
+ }
+
+ memcpy(value, data->data, ret);
+out:
+ return ret;
+}
+
+ssize_t
+glfs_getxattr_common(struct glfs *fs, const char *path, const char *name,
+ void *value, size_t size, int follow)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ dict_t *xattr = NULL;
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ if (!name || *name == '\0') {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ if (strlen(name) > GF_XATTR_NAME_MAX) {
+ ret = -1;
+ errno = ENAMETOOLONG;
+ goto out;
+ }
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+retry:
+ if (follow)
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+ else
+ ret = glfs_lresolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ ret = syncop_getxattr(subvol, &loc, &xattr, name, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ ret = glfs_getxattr_process(value, size, xattr, name);
+out:
+ loc_wipe(&loc);
+
+ if (xattr)
+ dict_unref(xattr);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_getxattr, 3.4.0)
+ssize_t
+pub_glfs_getxattr(struct glfs *fs, const char *path, const char *name,
+ void *value, size_t size)
+{
+ return glfs_getxattr_common(fs, path, name, value, size, 1);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_lgetxattr, 3.4.0)
+ssize_t
+pub_glfs_lgetxattr(struct glfs *fs, const char *path, const char *name,
+ void *value, size_t size)
+{
+ return glfs_getxattr_common(fs, path, name, value, size, 0);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fgetxattr, 3.4.0)
+ssize_t
+pub_glfs_fgetxattr(struct glfs_fd *glfd, const char *name, void *value,
+ size_t size)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ dict_t *xattr = NULL;
+ fd_t *fd = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ if (!name || *name == '\0') {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ if (strlen(name) > GF_XATTR_NAME_MAX) {
+ ret = -1;
+ errno = ENAMETOOLONG;
+ goto out;
+ }
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ ret = syncop_fgetxattr(subvol, fd, &xattr, name, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+ if (ret)
+ goto out;
+
+ ret = glfs_getxattr_process(value, size, xattr, name);
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ if (xattr)
+ dict_unref(xattr);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+int
+glfs_listxattr_process(void *value, size_t size, dict_t *xattr)
+{
+ int ret = -1;
+
+ if (!xattr)
+ goto out;
+
+ ret = dict_keys_join(NULL, 0, xattr, NULL);
+
+ if (!value || !size)
+ goto out;
+
+ if (size < ret) {
+ ret = -1;
+ errno = ERANGE;
+ } else {
+ dict_keys_join(value, size, xattr, NULL);
+ }
+
+out:
+ return ret;
+}
+
+ssize_t
+glfs_listxattr_common(struct glfs *fs, const char *path, void *value,
+ size_t size, int follow)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ dict_t *xattr = NULL;
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+retry:
+ if (follow)
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+ else
+ ret = glfs_lresolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ ret = syncop_getxattr(subvol, &loc, &xattr, NULL, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ ret = glfs_listxattr_process(value, size, xattr);
+out:
+ loc_wipe(&loc);
+
+ if (xattr)
+ dict_unref(xattr);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_listxattr, 3.4.0)
+ssize_t
+pub_glfs_listxattr(struct glfs *fs, const char *path, void *value, size_t size)
+{
+ return glfs_listxattr_common(fs, path, value, size, 1);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_llistxattr, 3.4.0)
+ssize_t
+pub_glfs_llistxattr(struct glfs *fs, const char *path, void *value, size_t size)
+{
+ return glfs_listxattr_common(fs, path, value, size, 0);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_flistxattr, 3.4.0)
+ssize_t
+pub_glfs_flistxattr(struct glfs_fd *glfd, void *value, size_t size)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ dict_t *xattr = NULL;
+ fd_t *fd = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ ret = syncop_fgetxattr(subvol, fd, &xattr, NULL, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+ if (ret)
+ goto out;
+
+ ret = glfs_listxattr_process(value, size, xattr);
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ if (xattr)
+ dict_unref(xattr);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+int
+glfs_setxattr_common(struct glfs *fs, const char *path, const char *name,
+ const void *value, size_t size, int flags, int follow)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ dict_t *xattr = NULL;
+ int reval = 0;
+ void *value_cp = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ if (!name || *name == '\0') {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ if (strlen(name) > GF_XATTR_NAME_MAX) {
+ ret = -1;
+ errno = ENAMETOOLONG;
+ goto out;
+ }
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+retry:
+ if (follow)
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+ else
+ ret = glfs_lresolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ value_cp = gf_memdup(value, size);
+ GF_CHECK_ALLOC_AND_LOG(subvol->name, value_cp, ret,
+ "Failed to"
+ " duplicate setxattr value",
+ out);
+
+ xattr = dict_for_key_value(name, value_cp, size, _gf_false);
+ if (!xattr) {
+ GF_FREE(value_cp);
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ ret = syncop_setxattr(subvol, &loc, xattr, flags, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+out:
+ loc_wipe(&loc);
+ if (xattr)
+ dict_unref(xattr);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_setxattr, 3.4.0)
+int
+pub_glfs_setxattr(struct glfs *fs, const char *path, const char *name,
+ const void *value, size_t size, int flags)
+{
+ return glfs_setxattr_common(fs, path, name, value, size, flags, 1);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_lsetxattr, 3.4.0)
+int
+pub_glfs_lsetxattr(struct glfs *fs, const char *path, const char *name,
+ const void *value, size_t size, int flags)
+{
+ return glfs_setxattr_common(fs, path, name, value, size, flags, 0);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fsetxattr, 3.4.0)
+int
+pub_glfs_fsetxattr(struct glfs_fd *glfd, const char *name, const void *value,
+ size_t size, int flags)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ dict_t *xattr = NULL;
+ fd_t *fd = NULL;
+ void *value_cp = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ if (!name || *name == '\0') {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ if (strlen(name) > GF_XATTR_NAME_MAX) {
+ ret = -1;
+ errno = ENAMETOOLONG;
+ goto out;
+ }
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ value_cp = gf_memdup(value, size);
+ GF_CHECK_ALLOC_AND_LOG(subvol->name, value_cp, ret,
+ "Failed to"
+ " duplicate setxattr value",
+ out);
+
+ xattr = dict_for_key_value(name, value_cp, size, _gf_false);
+ if (!xattr) {
+ GF_FREE(value_cp);
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ ret = syncop_fsetxattr(subvol, fd, xattr, flags, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+out:
+ if (xattr)
+ dict_unref(xattr);
+
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+int
+glfs_removexattr_common(struct glfs *fs, const char *path, const char *name,
+ int follow)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ if (follow)
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+ else
+ ret = glfs_lresolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ ret = syncop_removexattr(subvol, &loc, name, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+out:
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_removexattr, 3.4.0)
+int
+pub_glfs_removexattr(struct glfs *fs, const char *path, const char *name)
+{
+ return glfs_removexattr_common(fs, path, name, 1);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_lremovexattr, 3.4.0)
+int
+pub_glfs_lremovexattr(struct glfs *fs, const char *path, const char *name)
+{
+ return glfs_removexattr_common(fs, path, name, 0);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fremovexattr, 3.4.0)
+int
+pub_glfs_fremovexattr(struct glfs_fd *glfd, const char *name)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ ret = syncop_fremovexattr(subvol, fd, name, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fallocate, 3.5.0)
+int
+pub_glfs_fallocate(struct glfs_fd *glfd, int keep_size, off_t offset,
+ size_t len)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_fallocate(subvol, fd, keep_size, offset, len, fop_attr, NULL);
+ DECODE_SYNCOP_ERR(ret);
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_discard, 3.5.0)
+int
+pub_glfs_discard(struct glfs_fd *glfd, off_t offset, size_t len)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_discard(subvol, fd, offset, len, fop_attr, NULL);
+ DECODE_SYNCOP_ERR(ret);
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_zerofill, 3.5.0)
+int
+pub_glfs_zerofill(struct glfs_fd *glfd, off_t offset, off_t len)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ dict_t *fop_attr = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ errno = EBADFD;
+ goto out;
+ }
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_zerofill(subvol, fd, offset, len, fop_attr, NULL);
+ DECODE_SYNCOP_ERR(ret);
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_chdir, 3.4.0)
+int
+pub_glfs_chdir(struct glfs *fs, const char *path)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ if (!IA_ISDIR(iatt.ia_type)) {
+ ret = -1;
+ errno = ENOTDIR;
+ goto out;
+ }
+
+ glfs_cwd_set(fs, loc.inode);
+
+out:
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fchdir, 3.4.0)
+int
+pub_glfs_fchdir(struct glfs_fd *glfd)
+{
+ int ret = -1;
+ inode_t *inode = NULL;
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ inode = fd->inode;
+
+ if (!IA_ISDIR(inode->ia_type)) {
+ ret = -1;
+ errno = ENOTDIR;
+ goto out;
+ }
+
+ glfs_cwd_set(glfd->fs, inode);
+ ret = 0;
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+static gf_boolean_t warn_realpath = _gf_true; /* log once */
+
+static char *
+glfs_realpath_common(struct glfs *fs, const char *path, char *resolved_path,
+ gf_boolean_t warn_deprecated)
+{
+ int ret = -1;
+ char *retpath = NULL;
+ char *allocpath = NULL;
+ xlator_t *subvol = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int reval = 0;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ if (resolved_path)
+ retpath = resolved_path;
+ else if (warn_deprecated) {
+ retpath = allocpath = malloc(PATH_MAX + 1);
+ if (warn_realpath) {
+ warn_realpath = _gf_false;
+ gf_log(THIS->name, GF_LOG_WARNING,
+ "this application "
+ "is compiled against an old version of "
+ "libgfapi, it should use glfs_free() to "
+ "release the path returned by "
+ "glfs_realpath()");
+ }
+ } else {
+ retpath = allocpath = GLFS_CALLOC(1, PATH_MAX + 1, NULL,
+ glfs_mt_realpath_t);
+ }
+
+ if (!retpath) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+retry:
+ ret = glfs_resolve(fs, subvol, path, &loc, &iatt, reval);
+
+ ESTALE_RETRY(ret, errno, reval, &loc, retry);
+
+ if (ret)
+ goto out;
+
+ if (loc.path) {
+ snprintf(retpath, PATH_MAX + 1, "%s", loc.path);
+ }
+
+out:
+ loc_wipe(&loc);
+
+ if (ret == -1) {
+ if (warn_deprecated && allocpath)
+ free(allocpath);
+ else if (allocpath)
+ GLFS_FREE(allocpath);
+ retpath = NULL;
+ }
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return retpath;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_realpath34, glfs_realpath, 3.4.0)
+char *
+pub_glfs_realpath34(struct glfs *fs, const char *path, char *resolved_path)
+{
+ return glfs_realpath_common(fs, path, resolved_path, _gf_true);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_realpath, 3.7.17)
+char *
+pub_glfs_realpath(struct glfs *fs, const char *path, char *resolved_path)
+{
+ return glfs_realpath_common(fs, path, resolved_path, _gf_false);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_getcwd, 3.4.0)
+char *
+pub_glfs_getcwd(struct glfs *fs, char *buf, size_t n)
+{
+ int ret = -1;
+ inode_t *inode = NULL;
+ char *path = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ if (!buf || n < 2) {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ inode = glfs_cwd_get(fs);
+
+ if (!inode) {
+ strncpy(buf, "/", n);
+ ret = 0;
+ goto out;
+ }
+
+ ret = inode_path(inode, 0, &path);
+ if (n <= ret) {
+ ret = -1;
+ errno = ERANGE;
+ goto out;
+ }
+
+ strncpy(buf, path, n);
+ ret = 0;
+out:
+ GF_FREE(path);
+
+ if (inode)
+ inode_unref(inode);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ if (ret < 0)
+ return NULL;
+
+ return buf;
+}
+
+static void
+gf_flock_to_flock(struct gf_flock *gf_flock, struct flock *flock)
+{
+ flock->l_type = gf_flock->l_type;
+ flock->l_whence = gf_flock->l_whence;
+ flock->l_start = gf_flock->l_start;
+ flock->l_len = gf_flock->l_len;
+ flock->l_pid = gf_flock->l_pid;
+}
+
+static void
+gf_flock_from_flock(struct gf_flock *gf_flock, struct flock *flock)
+{
+ gf_flock->l_type = flock->l_type;
+ gf_flock->l_whence = flock->l_whence;
+ gf_flock->l_start = flock->l_start;
+ gf_flock->l_len = flock->l_len;
+ gf_flock->l_pid = flock->l_pid;
+}
+
+static int
+glfs_lock_common(struct glfs_fd *glfd, int cmd, struct flock *flock,
+ dict_t *xdata)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ struct gf_flock gf_flock = {
+ 0,
+ };
+ struct gf_flock saved_flock = {
+ 0,
+ };
+ fd_t *fd = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ if (!flock) {
+ errno = EINVAL;
+ goto out;
+ }
+
+ GF_REF_GET(glfd);
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ /* Generate glusterfs flock structure from client flock
+ * structure to be processed by server */
+ gf_flock_from_flock(&gf_flock, flock);
+
+ /* Keep another copy of flock for split/merge of locks
+ * at client side */
+ gf_flock_from_flock(&saved_flock, flock);
+
+ if (glfd->lk_owner.len != 0) {
+ ret = syncopctx_setfslkowner(&glfd->lk_owner);
+
+ if (ret)
+ goto out;
+ }
+
+ ret = get_fop_attr_thrd_key(&xdata);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_lk(subvol, fd, cmd, &gf_flock, xdata, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ /* Convert back from gf_flock to flock as expected by application */
+ gf_flock_to_flock(&gf_flock, flock);
+
+ if (ret == 0 && (cmd == F_SETLK || cmd == F_SETLKW)) {
+ ret = fd_lk_insert_and_merge(fd, cmd, &saved_flock);
+ if (ret) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, 0,
+ API_MSG_LOCK_INSERT_MERGE_FAILED, "gfid=%s",
+ uuid_utoa(fd->inode->gfid), NULL);
+ ret = 0;
+ }
+ }
+
+out:
+ if (fd)
+ fd_unref(fd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_file_lock, 4.0.0)
+int
+pub_glfs_file_lock(struct glfs_fd *glfd, int cmd, struct flock *flock,
+ glfs_lock_mode_t lk_mode)
+{
+ int ret = -1;
+ dict_t *xdata_in = NULL;
+
+ if (lk_mode == GLFS_LK_MANDATORY) {
+ /* Create a new dictionary */
+ xdata_in = dict_new();
+ if (xdata_in == NULL) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ /* Set GF_LK_MANDATORY internally within dictionary to map
+ * GLFS_LK_MANDATORY */
+ ret = dict_set_uint32(xdata_in, GF_LOCK_MODE, GF_LK_MANDATORY);
+ if (ret) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, 0,
+ API_MSG_SETTING_LOCK_TYPE_FAILED, NULL);
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+ }
+
+ ret = glfs_lock_common(glfd, cmd, flock, xdata_in);
+out:
+ if (xdata_in)
+ dict_unref(xdata_in);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_posix_lock, 3.4.0)
+int
+pub_glfs_posix_lock(struct glfs_fd *glfd, int cmd, struct flock *flock)
+{
+ return glfs_lock_common(glfd, cmd, flock, NULL);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fd_set_lkowner, 3.10.7)
+int
+pub_glfs_fd_set_lkowner(struct glfs_fd *glfd, void *data, int len)
+{
+ int ret = -1;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ if (!GF_REF_GET(glfd)) {
+ goto invalid_fs;
+ }
+
+ GF_VALIDATE_OR_GOTO(THIS->name, data, out);
+
+ if ((len <= 0) || (len > GFAPI_MAX_LOCK_OWNER_LEN)) {
+ errno = EINVAL;
+ gf_smsg(THIS->name, GF_LOG_ERROR, errno, API_MSG_INVALID_ARG,
+ "lk_owner len=%d", len, NULL);
+ goto out;
+ }
+
+ glfd->lk_owner.len = len;
+
+ memcpy(glfd->lk_owner.data, data, len);
+
+ ret = 0;
+out:
+ if (glfd)
+ GF_REF_PUT(glfd);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_dup, 3.4.0)
+struct glfs_fd *
+pub_glfs_dup(struct glfs_fd *glfd)
+{
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ struct glfs_fd *dupfd = NULL;
+ struct glfs *fs = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ fs = glfd->fs;
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(fs, subvol, glfd);
+ if (!fd) {
+ errno = EBADFD;
+ goto out;
+ }
+
+ dupfd = glfs_fd_new(fs);
+ if (!dupfd) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ dupfd->fd = fd_ref(fd);
+ dupfd->state = glfd->state;
+out:
+ if (fd)
+ fd_unref(fd);
+ if (dupfd)
+ glfs_fd_bind(dupfd);
+ if (glfd)
+ GF_REF_PUT(glfd);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return dupfd;
+}
+
+static void
+glfs_enqueue_upcall_data(struct glfs *fs, struct gf_upcall *upcall_data)
+{
+ int ret = -1;
+ upcall_entry *u_list = NULL;
+
+ if (!fs || !upcall_data)
+ goto out;
+
+ u_list = GF_CALLOC(1, sizeof(*u_list), glfs_mt_upcall_entry_t);
+
+ if (!u_list) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, ENOMEM, API_MSG_ALLOC_FAILED, "entry",
+ NULL);
+ goto out;
+ }
+
+ INIT_LIST_HEAD(&u_list->upcall_list);
+
+ gf_uuid_copy(u_list->upcall_data.gfid, upcall_data->gfid);
+ u_list->upcall_data.event_type = upcall_data->event_type;
+
+ switch (upcall_data->event_type) {
+ case GF_UPCALL_CACHE_INVALIDATION:
+ ret = glfs_get_upcall_cache_invalidation(&u_list->upcall_data,
+ upcall_data);
+ break;
+ case GF_UPCALL_RECALL_LEASE:
+ ret = glfs_get_upcall_lease(&u_list->upcall_data, upcall_data);
+ break;
+ default:
+ break;
+ }
+
+ if (ret) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, errno, API_MSG_INVALID_ENTRY, NULL);
+ goto out;
+ }
+
+ pthread_mutex_lock(&fs->upcall_list_mutex);
+ {
+ list_add_tail(&u_list->upcall_list, &fs->upcall_list);
+ }
+ pthread_mutex_unlock(&fs->upcall_list_mutex);
+
+ ret = 0;
+
+out:
+ if (ret && u_list) {
+ GF_FREE(u_list->upcall_data.data);
+ GF_FREE(u_list);
+ }
+}
+
+static void
+glfs_free_upcall_lease(void *to_free)
+{
+ struct glfs_upcall_lease *arg = to_free;
+
+ if (!arg)
+ return;
+
+ if (arg->object)
+ glfs_h_close(arg->object);
+
+ GF_FREE(arg);
+}
+
+int
+glfs_recall_lease_fd(struct glfs *fs, struct gf_upcall *up_data)
+{
+ struct gf_upcall_recall_lease *recall_lease = NULL;
+ xlator_t *subvol = NULL;
+ int ret = 0;
+ inode_t *inode = NULL;
+ struct glfs_fd *glfd = NULL;
+ struct glfs_fd *tmp = NULL;
+ struct list_head glfd_list;
+ fd_t *fd = NULL;
+ uint64_t value = 0;
+ struct glfs_lease lease = {
+ 0,
+ };
+
+ GF_VALIDATE_OR_GOTO("gfapi", up_data, out);
+ GF_VALIDATE_OR_GOTO("gfapi", fs, out);
+
+ recall_lease = up_data->data;
+ GF_VALIDATE_OR_GOTO("gfapi", recall_lease, out);
+
+ INIT_LIST_HEAD(&glfd_list);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ gf_msg_debug(THIS->name, 0, "Recall lease received for gfid:%s",
+ uuid_utoa(up_data->gfid));
+
+ inode = inode_find(subvol->itable, up_data->gfid);
+ if (!inode) {
+ ret = -1;
+ gf_smsg(THIS->name, GF_LOG_ERROR, errno, API_MSG_INODE_FIND_FAILED,
+ "gfid=%s", uuid_utoa(up_data->gfid), "graph_id=%d",
+ subvol->graph->id, NULL);
+ goto out;
+ }
+
+ LOCK(&inode->lock);
+ {
+ list_for_each_entry(fd, &inode->fd_list, inode_list)
+ {
+ ret = fd_ctx_get(fd, subvol, &value);
+ glfd = (struct glfs_fd *)(uintptr_t)value;
+ if (glfd) {
+ gf_msg_trace(THIS->name, 0, "glfd (%p) has held lease", glfd);
+ GF_REF_GET(glfd);
+ list_add_tail(&glfd->list, &glfd_list);
+ }
+ }
+ }
+ UNLOCK(&inode->lock);
+
+ if (!list_empty(&glfd_list)) {
+ list_for_each_entry_safe(glfd, tmp, &glfd_list, list)
+ {
+ LOCK(&glfd->lock);
+ {
+ if (glfd->state != GLFD_CLOSE) {
+ gf_msg_trace(THIS->name, 0,
+ "glfd (%p) has held lease, "
+ "calling recall cbk",
+ glfd);
+ glfd->cbk(lease, glfd->cookie);
+ }
+ }
+ UNLOCK(&glfd->lock);
+
+ list_del_init(&glfd->list);
+ GF_REF_PUT(glfd);
+ }
+ }
+
+out:
+ return ret;
+}
+
+static int
+glfs_recall_lease_upcall(struct glfs *fs, struct glfs_upcall *up_arg,
+ struct gf_upcall *up_data)
+{
+ struct gf_upcall_recall_lease *recall_lease = NULL;
+ struct glfs_object *object = NULL;
+ xlator_t *subvol = NULL;
+ int ret = -1;
+ struct glfs_upcall_lease *up_lease_arg = NULL;
+
+ GF_VALIDATE_OR_GOTO("gfapi", up_data, out);
+ GF_VALIDATE_OR_GOTO("gfapi", fs, out);
+
+ recall_lease = up_data->data;
+ GF_VALIDATE_OR_GOTO("gfapi", recall_lease, out);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ errno = EIO;
+ goto out;
+ }
+
+ gf_msg_debug(THIS->name, 0, "Recall lease received for gfid:%s",
+ uuid_utoa(up_data->gfid));
+
+ object = glfs_h_find_handle(fs, up_data->gfid, GFAPI_HANDLE_LENGTH);
+ if (!object) {
+ /* The reason handle creation will fail is because we
+ * couldn't find the inode in the gfapi inode table.
+ *
+ * But since application would have taken inode_ref, the
+ * only case when this can happen is when it has closed
+ * the handle and hence will no more be interested in
+ * the upcall for this particular gfid.
+ */
+ gf_smsg(THIS->name, GF_LOG_DEBUG, errno, API_MSG_CREATE_HANDLE_FAILED,
+ "gfid=%s", uuid_utoa(up_data->gfid), NULL);
+ errno = ESTALE;
+ goto out;
+ }
+
+ up_lease_arg = GF_CALLOC(1, sizeof(struct glfs_upcall_lease),
+ glfs_mt_upcall_inode_t);
+ up_lease_arg->object = object;
+
+ GF_VALIDATE_OR_GOTO("glfs_recall_lease", up_lease_arg, out);
+
+ up_lease_arg->lease_type = recall_lease->lease_type;
+
+ up_arg->reason = GLFS_UPCALL_RECALL_LEASE;
+ up_arg->event = up_lease_arg;
+ up_arg->free_event = glfs_free_upcall_lease;
+
+ ret = 0;
+
+out:
+ if (ret) {
+ /* Close p_object and oldp_object as well if being referenced.*/
+ if (object)
+ glfs_h_close(object);
+
+ /* Set reason to prevent applications from using ->event */
+ up_arg->reason = GF_UPCALL_EVENT_NULL;
+ }
+ return ret;
+}
+
+static int
+upcall_syncop_args_free(struct upcall_syncop_args *args)
+{
+ dict_t *dict = NULL;
+ struct gf_upcall *upcall_data = NULL;
+
+ if (args) {
+ upcall_data = &args->upcall_data;
+ switch (upcall_data->event_type) {
+ case GF_UPCALL_CACHE_INVALIDATION:
+ dict = ((struct gf_upcall_cache_invalidation *)(upcall_data
+ ->data))
+ ->dict;
+ break;
+ case GF_UPCALL_RECALL_LEASE:
+ dict = ((struct gf_upcall_recall_lease *)(upcall_data->data))
+ ->dict;
+ break;
+ }
+ if (dict)
+ dict_unref(dict);
+
+ GF_FREE(upcall_data->client_uid);
+ GF_FREE(upcall_data->data);
+ }
+ GF_FREE(args);
+ return 0;
+}
+
+static int
+glfs_upcall_syncop_cbk(int ret, call_frame_t *frame, void *opaque)
+{
+ struct upcall_syncop_args *args = opaque;
+
+ (void)upcall_syncop_args_free(args);
+
+ return 0;
+}
+
+static int
+glfs_cbk_upcall_syncop(void *opaque)
+{
+ struct upcall_syncop_args *args = opaque;
+ struct gf_upcall *upcall_data = NULL;
+ struct glfs_upcall *up_arg = NULL;
+ struct glfs *fs;
+ int ret = -1;
+
+ fs = args->fs;
+ upcall_data = &args->upcall_data;
+
+ if (!upcall_data) {
+ goto out;
+ }
+
+ up_arg = GLFS_CALLOC(1, sizeof(struct gf_upcall), glfs_release_upcall,
+ glfs_mt_upcall_entry_t);
+ if (!up_arg) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, ENOMEM, API_MSG_ALLOC_FAILED, "entry",
+ NULL);
+ goto out;
+ }
+
+ switch (upcall_data->event_type) {
+ case GF_UPCALL_CACHE_INVALIDATION:
+ ret = glfs_h_poll_cache_invalidation(fs, up_arg, upcall_data);
+ break;
+ case GF_UPCALL_RECALL_LEASE:
+ ret = glfs_recall_lease_upcall(fs, up_arg, upcall_data);
+ break;
+ default:
+ errno = EINVAL;
+ }
+
+ /* It could so happen that the file which got
+ * upcall notification may have got deleted by
+ * the same client. In such cases up_arg->reason
+ * is set to GLFS_UPCALL_EVENT_NULL. No need to
+ * send upcall then
+ */
+ if (up_arg->reason == GLFS_UPCALL_EVENT_NULL) {
+ gf_smsg(THIS->name, GF_LOG_DEBUG, errno,
+ API_MSG_UPCALL_EVENT_NULL_RECEIVED, NULL);
+ ret = 0;
+ GLFS_FREE(up_arg);
+ goto out;
+ } else if (ret) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, errno, API_MSG_INVALID_ENTRY, NULL);
+ GLFS_FREE(up_arg);
+ goto out;
+ }
+
+ if (fs->up_cbk && up_arg)
+ (fs->up_cbk)(up_arg, fs->up_data);
+
+ /* application takes care of calling glfs_free on up_arg post
+ * their processing */
+
+out:
+ return ret;
+}
+
+static struct gf_upcall_cache_invalidation *
+gf_copy_cache_invalidation(struct gf_upcall_cache_invalidation *src)
+{
+ struct gf_upcall_cache_invalidation *dst = NULL;
+
+ if (!src)
+ goto out;
+
+ dst = GF_CALLOC(1, sizeof(struct gf_upcall_cache_invalidation),
+ glfs_mt_upcall_entry_t);
+
+ if (!dst) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, ENOMEM, API_MSG_ALLOC_FAILED, "entry",
+ NULL);
+ goto out;
+ }
+
+ dst->flags = src->flags;
+ dst->expire_time_attr = src->expire_time_attr;
+ dst->stat = src->stat;
+ dst->p_stat = src->p_stat;
+ dst->oldp_stat = src->oldp_stat;
+
+ if (src->dict)
+ dst->dict = dict_copy_with_ref(src->dict, NULL);
+
+ return dst;
+out:
+ return NULL;
+}
+
+static struct gf_upcall_recall_lease *
+gf_copy_recall_lease(struct gf_upcall_recall_lease *src)
+{
+ struct gf_upcall_recall_lease *dst = NULL;
+
+ if (!src)
+ goto out;
+
+ dst = GF_CALLOC(1, sizeof(struct gf_upcall_recall_lease),
+ glfs_mt_upcall_entry_t);
+
+ if (!dst) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, ENOMEM, API_MSG_ALLOC_FAILED, "entry",
+ NULL);
+ goto out;
+ }
+
+ dst->lease_type = src->lease_type;
+ memcpy(dst->tid, src->tid, 16);
+
+ if (src->dict)
+ dst->dict = dict_copy_with_ref(src->dict, NULL);
+
+ return dst;
+out:
+ return NULL;
+}
+
+static struct upcall_syncop_args *
+upcall_syncop_args_init(struct glfs *fs, struct gf_upcall *upcall_data)
+{
+ struct upcall_syncop_args *args = NULL;
+ int ret = -1;
+ struct gf_upcall *t_data = NULL;
+
+ if (!fs || !upcall_data)
+ goto out;
+
+ args = GF_CALLOC(1, sizeof(struct upcall_syncop_args),
+ glfs_mt_upcall_entry_t);
+ if (!args) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, ENOMEM, API_MSG_ALLOC_FAILED,
+ "syncop args", NULL);
+ goto out;
+ }
+
+ /* Note: we are not taking any ref on fs here.
+ * Ideally applications have to unregister for upcall events
+ * or stop polling for upcall events before performing
+ * glfs_fini. And as for outstanding synctasks created, we wait
+ * for all syncenv threads to finish tasks before cleaning up the
+ * fs->ctx. Hence it seems safe to process these callback
+ * notification without taking any lock/ref.
+ */
+ args->fs = fs;
+ t_data = &(args->upcall_data);
+ t_data->client_uid = gf_strdup(upcall_data->client_uid);
+
+ gf_uuid_copy(t_data->gfid, upcall_data->gfid);
+ t_data->event_type = upcall_data->event_type;
+
+ switch (t_data->event_type) {
+ case GF_UPCALL_CACHE_INVALIDATION:
+ t_data->data = gf_copy_cache_invalidation(
+ (struct gf_upcall_cache_invalidation *)upcall_data->data);
+ break;
+ case GF_UPCALL_RECALL_LEASE:
+ t_data->data = gf_copy_recall_lease(
+ (struct gf_upcall_recall_lease *)upcall_data->data);
+ break;
+ }
+
+ if (!t_data->data)
+ goto out;
+
+ return args;
+out:
+ if (ret) {
+ if (args) {
+ GF_FREE(args->upcall_data.client_uid);
+ GF_FREE(args);
+ }
+ }
+
+ return NULL;
+}
+
+static void
+glfs_cbk_upcall_data(struct glfs *fs, struct gf_upcall *upcall_data)
+{
+ struct upcall_syncop_args *args = NULL;
+ int ret = -1;
+
+ if (!fs || !upcall_data)
+ goto out;
+
+ if (!(fs->upcall_events & upcall_data->event_type)) {
+ /* ignore events which application hasn't registered*/
+ goto out;
+ }
+
+ args = upcall_syncop_args_init(fs, upcall_data);
+
+ if (!args)
+ goto out;
+
+ ret = synctask_new(THIS->ctx->env, glfs_cbk_upcall_syncop,
+ glfs_upcall_syncop_cbk, NULL, args);
+ /* should we retry incase of failure? */
+ if (ret) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, errno, API_MSG_UPCALL_SYNCOP_FAILED,
+ "event_type=%d", upcall_data->event_type, "gfid=%s",
+ (char *)(upcall_data->gfid), NULL);
+ upcall_syncop_args_free(args);
+ }
+
+out:
+ return;
+}
+
+/*
+ * This routine is called in case of any notification received
+ * from the server. All the upcall events are queued up in a list
+ * to be read by the applications.
+ *
+ * In case if the application registers a cbk function, that shall
+ * be called by this routine in case of any event received.
+ * The cbk fn is responsible for notifying the
+ * applications the way it desires for each event queued (for eg.,
+ * can raise a signal or broadcast a cond variable etc.)
+ *
+ * Otherwise all the upcall events are queued up in a list
+ * to be read/polled by the applications.
+ */
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_process_upcall_event, 3.7.0)
+void
+priv_glfs_process_upcall_event(struct glfs *fs, void *data)
+{
+ glusterfs_ctx_t *ctx = NULL;
+ struct gf_upcall *upcall_data = NULL;
+
+ DECLARE_OLD_THIS;
+
+ gf_msg_debug(THIS->name, 0, "Upcall gfapi callback is called");
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, err);
+
+ if (!data)
+ goto out;
+
+ /* Unlike in I/O path, "glfs_fini" would not have freed
+ * 'fs' by the time we take lock as it waits for all epoll
+ * threads to exit including this
+ */
+ pthread_mutex_lock(&fs->mutex);
+ {
+ ctx = fs->ctx;
+
+ /* if we're not interested in upcalls (anymore), skip them */
+ if (ctx->cleanup_started || !fs->cache_upcalls) {
+ pthread_mutex_unlock(&fs->mutex);
+ goto out;
+ }
+
+ fs->pin_refcnt++;
+ }
+ pthread_mutex_unlock(&fs->mutex);
+
+ upcall_data = (struct gf_upcall *)data;
+
+ gf_msg_trace(THIS->name, 0, "Upcall gfapi gfid = %s",
+ (char *)(upcall_data->gfid));
+
+ /* *
+ * TODO: RECALL LEASE for each glfd
+ *
+ * In case of RECALL_LEASE, we could associate separate
+ * cbk function for each glfd either by
+ * - extending pub_glfs_lease to accept new args (recall_cbk_fn, cookie)
+ * - or by defining new API "glfs_register_recall_cbk_fn (glfd,
+ * recall_cbk_fn, cookie) . In such cases, flag it and instead of calling
+ * below upcall functions, define a new one to go through the glfd list and
+ * invoke each of theirs recall_cbk_fn.
+ * */
+
+ if (fs->up_cbk) { /* upcall cbk registered */
+ (void)glfs_cbk_upcall_data(fs, upcall_data);
+ } else {
+ (void)glfs_enqueue_upcall_data(fs, upcall_data);
+ }
+
+ pthread_mutex_lock(&fs->mutex);
+ {
+ fs->pin_refcnt--;
+ }
+ pthread_mutex_unlock(&fs->mutex);
+
+out:
+ __GLFS_EXIT_FS;
+err:
+ return;
+}
+
+ssize_t
+glfs_anonymous_pwritev(struct glfs *fs, struct glfs_object *object,
+ const struct iovec *iovec, int iovcnt, off_t offset,
+ int flags)
+{
+ xlator_t *subvol = NULL;
+ struct iobref *iobref = NULL;
+ struct iobuf *iobuf = NULL;
+ struct iovec iov = {
+ 0,
+ };
+ inode_t *inode = NULL;
+ fd_t *fd = NULL;
+ int ret = -1;
+ size_t size = -1;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ ret = -1;
+ errno = ESTALE;
+ goto out;
+ }
+
+ fd = fd_anonymous(inode);
+ if (!fd) {
+ ret = -1;
+ gf_smsg("gfapi", GF_LOG_ERROR, ENOMEM, API_MSG_FDCREATE_FAILED, NULL);
+ errno = ENOMEM;
+ goto out;
+ }
+
+ size = iov_length(iovec, iovcnt);
+
+ iobuf = iobuf_get2(subvol->ctx->iobuf_pool, size);
+ if (!iobuf) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ iobref = iobref_new();
+ if (!iobref) {
+ iobuf_unref(iobuf);
+ errno = ENOMEM;
+ ret = -1;
+ goto out;
+ }
+
+ ret = iobref_add(iobref, iobuf);
+ if (ret) {
+ iobuf_unref(iobuf);
+ iobref_unref(iobref);
+ errno = ENOMEM;
+ ret = -1;
+ goto out;
+ }
+
+ iov_unload(iobuf_ptr(iobuf), iovec, iovcnt);
+
+ iov.iov_base = iobuf_ptr(iobuf);
+ iov.iov_len = size;
+
+ /* TODO : set leaseid */
+ ret = syncop_writev(subvol, fd, &iov, 1, offset, iobref, flags, NULL, NULL,
+ NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ iobuf_unref(iobuf);
+ iobref_unref(iobref);
+
+ if (ret <= 0)
+ goto out;
+
+out:
+
+ if (fd)
+ fd_unref(fd);
+
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+ssize_t
+glfs_anonymous_preadv(struct glfs *fs, struct glfs_object *object,
+ const struct iovec *iovec, int iovcnt, off_t offset,
+ int flags)
+{
+ xlator_t *subvol = NULL;
+ struct iovec *iov = NULL;
+ struct iobref *iobref = NULL;
+ inode_t *inode = NULL;
+ fd_t *fd = NULL;
+ int cnt = 0;
+ ssize_t ret = -1;
+ ssize_t size = -1;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ ret = -1;
+ errno = ESTALE;
+ goto out;
+ }
+
+ fd = fd_anonymous(inode);
+ if (!fd) {
+ ret = -1;
+ gf_smsg("gfapi", GF_LOG_ERROR, ENOMEM, API_MSG_FDCREATE_FAILED, NULL);
+ errno = ENOMEM;
+ goto out;
+ }
+
+ size = iov_length(iovec, iovcnt);
+
+ /* TODO : set leaseid */
+ ret = syncop_readv(subvol, fd, size, offset, flags, &iov, &cnt, &iobref,
+ NULL, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+ if (ret <= 0)
+ goto out;
+
+ size = iov_copy(iovec, iovcnt, iov, cnt);
+
+ ret = size;
+out:
+ if (iov)
+ GF_FREE(iov);
+ if (iobref)
+ iobref_unref(iobref);
+ if (fd)
+ fd_unref(fd);
+
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+static void
+glfs_release_xreaddirp_stat(void *ptr)
+{
+ struct glfs_xreaddirp_stat *to_free = ptr;
+
+ if (to_free->object)
+ glfs_h_close(to_free->object);
+}
+
+/*
+ * Given glfd of a directory, this function does readdirp and returns
+ * xstat along with dirents.
+ */
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_xreaddirplus_r, 3.11.0)
+int
+pub_glfs_xreaddirplus_r(struct glfs_fd *glfd, uint32_t flags,
+ struct glfs_xreaddirp_stat **xstat_p,
+ struct dirent *ext, struct dirent **res)
+{
+ int ret = -1;
+ gf_dirent_t *entry = NULL;
+ struct dirent *buf = NULL;
+ struct glfs_xreaddirp_stat *xstat = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ GF_VALIDATE_OR_GOTO(THIS->name, xstat_p, out);
+ GF_VALIDATE_OR_GOTO(THIS->name, res, out);
+
+ errno = 0;
+
+ if (ext)
+ buf = ext;
+ else
+ buf = glfs_readdirbuf_get(glfd);
+
+ if (!buf)
+ goto out;
+
+ xstat = GLFS_CALLOC(1, sizeof(struct glfs_xreaddirp_stat),
+ glfs_release_xreaddirp_stat, glfs_mt_xreaddirp_stat_t);
+
+ if (!xstat)
+ goto out;
+
+ /* this is readdirplus operation */
+ entry = glfd_entry_next(glfd, 1);
+
+ /* XXX: Ideally when we reach EOD, errno should have been
+ * set to ENOENT. But that doesn't seem to be the case.
+ *
+ * The only way to confirm if its EOD at this point is that
+ * errno == 0 and entry == NULL
+ */
+ if (errno)
+ goto out;
+
+ if (!entry) {
+ /* reached EOD, ret = 0 */
+ ret = 0;
+ *res = NULL;
+ *xstat_p = NULL;
+
+ /* free xstat as applications shall not be using it */
+ GLFS_FREE(xstat);
+
+ goto out;
+ }
+
+ *res = buf;
+ gf_dirent_to_dirent(entry, buf);
+
+ if (flags & GFAPI_XREADDIRP_STAT) {
+ glfs_iatt_to_stat(glfd->fs, &entry->d_stat, &xstat->st);
+ xstat->flags_handled |= GFAPI_XREADDIRP_STAT;
+ }
+
+ if ((flags & GFAPI_XREADDIRP_HANDLE) &&
+ /* skip . and .. */
+ strcmp(buf->d_name, ".") && strcmp(buf->d_name, "..")) {
+ /* Now create object.
+ * We can use "glfs_h_find_handle" as well as inodes would have
+ * already got linked as part of 'gf_link_inodes_from_dirent' */
+ xstat->object = glfs_h_create_from_handle(
+ glfd->fs, entry->d_stat.ia_gfid, GFAPI_HANDLE_LENGTH, NULL);
+
+ if (xstat->object) { /* success */
+ /* note: xstat->object->inode->ref is taken
+ * This shall be unref'ed when application does
+ * glfs_free(xstat) */
+ xstat->flags_handled |= GFAPI_XREADDIRP_HANDLE;
+ }
+ }
+
+ ret = xstat->flags_handled;
+ *xstat_p = xstat;
+
+ gf_msg_debug(THIS->name, 0,
+ "xreaddirp- requested_flags (%x) , processed_flags (%x)",
+ flags, xstat->flags_handled);
+
+out:
+ GF_REF_PUT(glfd);
+
+ if (ret < 0) {
+ gf_smsg(THIS->name, GF_LOG_WARNING, errno, API_MSG_XREADDIRP_R_FAILED,
+ "reason=%s", strerror(errno), NULL);
+
+ if (xstat)
+ GLFS_FREE(xstat);
+ }
+
+ __GLFS_EXIT_FS;
+
+ return ret;
+
+invalid_fs:
+ return -1;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_xreaddirplus_get_stat, 3.11.0)
+struct stat *
+pub_glfs_xreaddirplus_get_stat(struct glfs_xreaddirp_stat *xstat)
+{
+ GF_VALIDATE_OR_GOTO("glfs_xreaddirplus_get_stat", xstat, out);
+
+ if (!xstat->flags_handled & GFAPI_XREADDIRP_STAT)
+ gf_smsg(THIS->name, GF_LOG_ERROR, errno, API_MSG_FLAGS_HANDLE,
+ "GFAPI_XREADDIRP_STAT"
+ "xstat=%p",
+ xstat, "handles=%x", xstat->flags_handled, NULL);
+ return &xstat->st;
+
+out:
+ return NULL;
+}
+
+void
+gf_lease_to_glfs_lease(struct gf_lease *gf_lease, struct glfs_lease *lease)
+{
+ u_int lease_type = gf_lease->lease_type;
+ lease->cmd = gf_lease->cmd;
+ lease->lease_type = lease_type;
+ memcpy(lease->lease_id, gf_lease->lease_id, LEASE_ID_SIZE);
+}
+
+void
+glfs_lease_to_gf_lease(struct glfs_lease *lease, struct gf_lease *gf_lease)
+{
+ u_int lease_type = lease->lease_type;
+ gf_lease->cmd = lease->cmd;
+ gf_lease->lease_type = lease_type;
+ memcpy(gf_lease->lease_id, lease->lease_id, LEASE_ID_SIZE);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_lease, 4.0.0)
+int
+pub_glfs_lease(struct glfs_fd *glfd, struct glfs_lease *lease,
+ glfs_recall_cbk fn, void *data)
+{
+ int ret = -1;
+ loc_t loc = {
+ 0,
+ };
+ xlator_t *subvol = NULL;
+ fd_t *fd = NULL;
+ struct gf_lease gf_lease = {
+ 0,
+ };
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FD(glfd, invalid_fs);
+
+ GF_REF_GET(glfd);
+
+ if (!is_valid_lease_id(lease->lease_id)) {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ subvol = glfs_active_subvol(glfd->fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ fd = glfs_resolve_fd(glfd->fs, subvol, glfd);
+ if (!fd) {
+ ret = -1;
+ errno = EBADFD;
+ goto out;
+ }
+
+ switch (lease->lease_type) {
+ case GLFS_RD_LEASE:
+ if ((fd->flags != O_RDONLY) && !(fd->flags & O_RDWR)) {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+ break;
+ case GLFS_RW_LEASE:
+ if (!((fd->flags & O_WRONLY) || (fd->flags & O_RDWR))) {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+ break;
+ default:
+ if (lease->cmd != GLFS_GET_LEASE) {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+ break;
+ }
+
+ /* populate loc */
+ GLFS_LOC_FILL_INODE(fd->inode, loc, out);
+
+ glfs_lease_to_gf_lease(lease, &gf_lease);
+
+ ret = syncop_lease(subvol, &loc, &gf_lease, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ gf_lease_to_glfs_lease(&gf_lease, lease);
+
+ /* TODO: Add leases for client replay
+ if (ret == 0 && (cmd == F_SETLK || cmd == F_SETLKW))
+ fd_lk_insert_and_merge (fd, cmd, &saved_flock);
+ */
+ if (ret == 0) {
+ ret = fd_ctx_set(glfd->fd, subvol, (uint64_t)(long)glfd);
+ if (ret) {
+ gf_smsg(subvol->name, GF_LOG_ERROR, ENOMEM,
+ API_MSG_FDCTX_SET_FAILED, "fd=%p", glfd->fd, NULL);
+ goto out;
+ }
+ glfd->cbk = fn;
+ glfd->cookie = data;
+ }
+
+out:
+
+ if (glfd)
+ GF_REF_PUT(glfd);
+
+ if (subvol)
+ glfs_subvol_done(glfd->fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
diff --git a/api/src/glfs-handleops.c b/api/src/glfs-handleops.c
new file mode 100644
index 00000000000..53c2ee896f9
--- /dev/null
+++ b/api/src/glfs-handleops.c
@@ -0,0 +1,2655 @@
+/*
+ * Copyright (c) 2013-2018 Red Hat, Inc. <http://www.redhat.com>
+ * This file is part of GlusterFS.
+ *
+ * This file is licensed to you under your choice of the GNU Lesser
+ * General Public License, version 3 or any later version (LGPLv3 or
+ * later), or the GNU General Public License, version 2 (GPLv2), in all
+ * cases as published by the Free Software Foundation.
+ */
+
+#include "glfs-internal.h"
+#include "glfs-mem-types.h"
+#include <glusterfs/syncop.h>
+#include "glfs.h"
+#include "glfs-handles.h"
+#include "gfapi-messages.h"
+
+int
+glfs_listxattr_process(void *value, size_t size, dict_t *xattr);
+
+void
+glfs_iatt_from_stat(struct stat *stat, int valid, struct iatt *iatt,
+ int *glvalid)
+{
+ /* validate in args */
+ if ((stat == NULL) || (iatt == NULL) || (glvalid == NULL)) {
+ errno = EINVAL;
+ return;
+ }
+
+ *glvalid = 0;
+
+ if (valid & GFAPI_SET_ATTR_MODE) {
+ iatt->ia_prot = ia_prot_from_st_mode(stat->st_mode);
+ *glvalid |= GF_SET_ATTR_MODE;
+ }
+
+ if (valid & GFAPI_SET_ATTR_UID) {
+ iatt->ia_uid = stat->st_uid;
+ *glvalid |= GF_SET_ATTR_UID;
+ }
+
+ if (valid & GFAPI_SET_ATTR_GID) {
+ iatt->ia_gid = stat->st_gid;
+ *glvalid |= GF_SET_ATTR_GID;
+ }
+
+ if (valid & GFAPI_SET_ATTR_ATIME) {
+ iatt->ia_atime = stat->st_atime;
+ iatt->ia_atime_nsec = ST_ATIM_NSEC(stat);
+ *glvalid |= GF_SET_ATTR_ATIME;
+ }
+
+ if (valid & GFAPI_SET_ATTR_MTIME) {
+ iatt->ia_mtime = stat->st_mtime;
+ iatt->ia_mtime_nsec = ST_MTIM_NSEC(stat);
+ *glvalid |= GF_SET_ATTR_MTIME;
+ }
+
+ return;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_lookupat, 3.7.4)
+struct glfs_object *
+pub_glfs_h_lookupat(struct glfs *fs, struct glfs_object *parent,
+ const char *path, struct stat *stat, int follow)
+{
+ int ret = 0;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ struct iatt iatt = {
+ 0,
+ };
+ struct glfs_object *object = NULL;
+ loc_t loc = {
+ 0,
+ };
+
+ DECLARE_OLD_THIS;
+
+ /* validate in args */
+ if (path == NULL) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ if (parent) {
+ inode = glfs_resolve_inode(fs, subvol, parent);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+ }
+
+ /* fop/op */
+ ret = glfs_resolve_at(fs, subvol, inode, path, &loc, &iatt, follow, 0);
+
+ /* populate out args */
+ if (!ret) {
+ if (stat)
+ glfs_iatt_to_stat(fs, &iatt, stat);
+
+ ret = glfs_create_object(&loc, &object);
+ }
+
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return object;
+}
+
+GFAPI_SYMVER_PUBLIC(glfs_h_lookupat34, glfs_h_lookupat, 3.4.2)
+struct glfs_object *
+pub_glfs_h_lookupat34(struct glfs *fs, struct glfs_object *parent,
+ const char *path, struct stat *stat)
+{
+ return pub_glfs_h_lookupat(fs, parent, path, stat, 0);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_statfs, 3.7.0)
+int
+pub_glfs_h_statfs(struct glfs *fs, struct glfs_object *object,
+ struct statvfs *statvfs)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+
+ DECLARE_OLD_THIS;
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL || statvfs == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ /* populate loc */
+ GLFS_LOC_FILL_INODE(inode, loc, out);
+
+ /* fop/op */
+ ret = syncop_statfs(subvol, &loc, statvfs, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ loc_wipe(&loc);
+
+out:
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_stat, 3.4.2)
+int
+pub_glfs_h_stat(struct glfs *fs, struct glfs_object *object, struct stat *stat)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+
+ DECLARE_OLD_THIS;
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ /* populate loc */
+ GLFS_LOC_FILL_INODE(inode, loc, out);
+
+ /* fop/op */
+ ret = syncop_stat(subvol, &loc, &iatt, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ /* populate out args */
+ if (!ret && stat) {
+ glfs_iatt_to_stat(fs, &iatt, stat);
+ }
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_getattrs, 3.4.2)
+int
+pub_glfs_h_getattrs(struct glfs *fs, struct glfs_object *object,
+ struct stat *stat)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ struct iatt iatt = {
+ 0,
+ };
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ ret = 0;
+ errno = ESTALE;
+ goto out;
+ }
+
+ /* fop/op */
+ ret = glfs_resolve_base(fs, subvol, inode, &iatt);
+
+ /* populate out args */
+ if (!ret && stat) {
+ glfs_iatt_to_stat(fs, &iatt, stat);
+ }
+
+out:
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+int
+glfs_h_getxattrs_common(struct glfs *fs, struct glfs_object *object,
+ dict_t **xattr, const char *name,
+ gf_boolean_t is_listxattr)
+{
+ int ret = 0;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (!is_listxattr) {
+ if (!name || *name == '\0') {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (strlen(name) > GF_XATTR_NAME_MAX) {
+ errno = ENAMETOOLONG;
+ return -1;
+ }
+ }
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ /* populate loc */
+ GLFS_LOC_FILL_INODE(inode, loc, out);
+
+ ret = syncop_getxattr(subvol, &loc, xattr, name, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_getxattrs, 3.5.1)
+int
+pub_glfs_h_getxattrs(struct glfs *fs, struct glfs_object *object,
+ const char *name, void *value, size_t size)
+{
+ int ret = -1;
+ dict_t *xattr = NULL;
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ ret = glfs_h_getxattrs_common(fs, object, &xattr, name, (name == NULL));
+ if (ret)
+ goto out;
+
+ /* If @name is NULL, means get all the xattrs (i.e listxattr). */
+ if (name)
+ ret = glfs_getxattr_process(value, size, xattr, name);
+ else
+ ret = glfs_listxattr_process(value, size, xattr);
+
+out:
+ if (xattr)
+ dict_unref(xattr);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_setattrs, 3.4.2)
+int
+pub_glfs_h_setattrs(struct glfs *fs, struct glfs_object *object,
+ struct stat *stat, int valid)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ int glvalid = 0;
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL) || (stat == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ /* map valid masks from in args */
+ glfs_iatt_from_stat(stat, valid, &iatt, &glvalid);
+
+ /* populate loc */
+ GLFS_LOC_FILL_INODE(inode, loc, out);
+
+ /* fop/op */
+ ret = syncop_setattr(subvol, &loc, &iatt, glvalid, 0, 0, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_setxattrs, 3.5.0)
+int
+pub_glfs_h_setxattrs(struct glfs *fs, struct glfs_object *object,
+ const char *name, const void *value, size_t size,
+ int flags)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+ dict_t *xattr = NULL;
+ void *value_cp = NULL;
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL) || (name == NULL) || (value == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (!name || *name == '\0') {
+ errno = EINVAL;
+ return -1;
+ }
+
+ if (strlen(name) > GF_XATTR_NAME_MAX) {
+ errno = ENAMETOOLONG;
+ return -1;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ value_cp = gf_memdup(value, size);
+ GF_CHECK_ALLOC_AND_LOG(subvol->name, value_cp, ret,
+ "Failed to"
+ " duplicate setxattr value",
+ out);
+
+ xattr = dict_for_key_value(name, value_cp, size, _gf_false);
+ if (!xattr) {
+ GF_FREE(value_cp);
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ /* populate loc */
+ GLFS_LOC_FILL_INODE(inode, loc, out);
+
+ /* fop/op */
+ ret = syncop_setxattr(subvol, &loc, xattr, flags, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ if (xattr)
+ dict_unref(xattr);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_removexattrs, 3.5.1)
+int
+pub_glfs_h_removexattrs(struct glfs *fs, struct glfs_object *object,
+ const char *name)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL) || (name == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ /* populate loc */
+ GLFS_LOC_FILL_INODE(inode, loc, out);
+
+ /* fop/op */
+ ret = syncop_removexattr(subvol, &loc, name, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_open, 3.4.2)
+struct glfs_fd *
+pub_glfs_h_open(struct glfs *fs, struct glfs_object *object, int flags)
+{
+ int ret = -1;
+ struct glfs_fd *glfd = NULL;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+ dict_t *fop_attr = NULL;
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL)) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ /* check types to open */
+ if (IA_ISDIR(inode->ia_type)) {
+ ret = -1;
+ errno = EISDIR;
+ goto out;
+ }
+
+ if (!IA_ISREG(inode->ia_type)) {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ glfd = glfs_fd_new(fs);
+ if (!glfd) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ glfd->fd = fd_create(inode, getpid());
+ if (!glfd->fd) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+ glfd->fd->flags = flags;
+
+ /* populate loc */
+ GLFS_LOC_FILL_INODE(inode, loc, out);
+
+ /* fop/op */
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ ret = syncop_open(subvol, &loc, flags, glfd->fd, fop_attr, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ glfd->fd->flags = flags;
+
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ if (ret && glfd) {
+ GF_REF_PUT(glfd);
+ glfd = NULL;
+ } else if (glfd) {
+ glfd_set_state_bind(glfd);
+ }
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return glfd;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_creat, 3.4.2)
+struct glfs_object *
+pub_glfs_h_creat(struct glfs *fs, struct glfs_object *parent, const char *path,
+ int flags, mode_t mode, struct stat *stat)
+{
+ int ret = -1;
+ fd_t *fd = NULL;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ uuid_t gfid;
+ dict_t *xattr_req = NULL;
+ struct glfs_object *object = NULL;
+
+ /* validate in args */
+ if ((fs == NULL) || (parent == NULL) || (path == NULL)) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, parent);
+ if (!inode) {
+ ret = -1;
+ errno = ESTALE;
+ goto out;
+ }
+
+ xattr_req = dict_new();
+ if (!xattr_req) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gf_uuid_generate(gfid);
+ ret = dict_set_gfuuid(xattr_req, "gfid-req", gfid, true);
+ if (ret) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ GLFS_LOC_FILL_PINODE(inode, loc, ret, errno, out, path);
+
+ fd = fd_create(loc.inode, getpid());
+ if (!fd) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+ fd->flags = flags;
+
+ /* fop/op */
+ ret = syncop_create(subvol, &loc, flags, mode, fd, &iatt, xattr_req, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ /* populate out args */
+ if (ret == 0) {
+ ret = glfs_loc_link(&loc, &iatt);
+ if (ret != 0) {
+ goto out;
+ }
+
+ if (stat)
+ glfs_iatt_to_stat(fs, &iatt, stat);
+
+ ret = glfs_create_object(&loc, &object);
+ }
+
+out:
+ if (ret && object != NULL) {
+ /* Release the held reference */
+ glfs_h_close(object);
+ object = NULL;
+ }
+
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ if (xattr_req)
+ dict_unref(xattr_req);
+
+ if (fd)
+ fd_unref(fd);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return object;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_creat_open, 6.6)
+struct glfs_object *
+pub_glfs_h_creat_open(struct glfs *fs, struct glfs_object *parent,
+ const char *path, int flags, mode_t mode,
+ struct stat *stat, struct glfs_fd **out_fd)
+{
+ int ret = -1;
+ struct glfs_fd *glfd = NULL;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ uuid_t gfid;
+ dict_t *xattr_req = NULL;
+ struct glfs_object *object = NULL;
+ dict_t *fop_attr = NULL;
+
+ /* validate in args */
+ if ((fs == NULL) || (parent == NULL) || (path == NULL) ||
+ (out_fd == NULL)) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, parent);
+ if (!inode) {
+ ret = -1;
+ goto out;
+ }
+
+ xattr_req = dict_new();
+ if (!xattr_req) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gf_uuid_generate(gfid);
+ ret = dict_set_gfuuid(xattr_req, "gfid-req", gfid, true);
+ if (ret) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ GLFS_LOC_FILL_PINODE(inode, loc, ret, errno, out, path);
+
+ glfd = glfs_fd_new(fs);
+ if (!glfd) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ glfd->fd = fd_create(loc.inode, getpid());
+ if (!glfd->fd) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+ glfd->fd->flags = flags;
+
+ ret = get_fop_attr_thrd_key(&fop_attr);
+ if (ret)
+ gf_msg_debug("gfapi", 0, "Getting leaseid from thread failed");
+
+ /* fop/op */
+ ret = syncop_create(subvol, &loc, flags, mode, glfd->fd, &iatt, xattr_req,
+ NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ /* populate out args */
+ if (ret == 0) {
+ glfd->fd->flags = flags;
+
+ ret = glfs_loc_link(&loc, &iatt);
+ if (ret != 0) {
+ goto out;
+ }
+
+ if (stat)
+ glfs_iatt_to_stat(fs, &iatt, stat);
+
+ ret = glfs_create_object(&loc, &object);
+ }
+
+out:
+ if (ret && object != NULL) {
+ /* Release the held reference */
+ glfs_h_close(object);
+ object = NULL;
+ }
+
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ if (fop_attr)
+ dict_unref(fop_attr);
+
+ if (xattr_req)
+ dict_unref(xattr_req);
+
+ if (ret && glfd) {
+ GF_REF_PUT(glfd);
+ } else if (glfd) {
+ glfd_set_state_bind(glfd);
+ *out_fd = glfd;
+ }
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return object;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_mkdir, 3.4.2)
+struct glfs_object *
+pub_glfs_h_mkdir(struct glfs *fs, struct glfs_object *parent, const char *path,
+ mode_t mode, struct stat *stat)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ uuid_t gfid;
+ dict_t *xattr_req = NULL;
+ struct glfs_object *object = NULL;
+
+ /* validate in args */
+ if ((fs == NULL) || (parent == NULL) || (path == NULL)) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, parent);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ xattr_req = dict_new();
+ if (!xattr_req) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gf_uuid_generate(gfid);
+ ret = dict_set_gfuuid(xattr_req, "gfid-req", gfid, true);
+ if (ret) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ GLFS_LOC_FILL_PINODE(inode, loc, ret, errno, out, path);
+
+ /* fop/op */
+ ret = syncop_mkdir(subvol, &loc, mode, &iatt, xattr_req, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ /* populate out args */
+ if (ret == 0) {
+ ret = glfs_loc_link(&loc, &iatt);
+ if (ret != 0) {
+ goto out;
+ }
+
+ if (stat)
+ glfs_iatt_to_stat(fs, &iatt, stat);
+
+ ret = glfs_create_object(&loc, &object);
+ }
+
+out:
+ if (ret && object != NULL) {
+ glfs_h_close(object);
+ object = NULL;
+ }
+
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ if (xattr_req)
+ dict_unref(xattr_req);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return object;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_mknod, 3.4.2)
+struct glfs_object *
+pub_glfs_h_mknod(struct glfs *fs, struct glfs_object *parent, const char *path,
+ mode_t mode, dev_t dev, struct stat *stat)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ uuid_t gfid;
+ dict_t *xattr_req = NULL;
+ struct glfs_object *object = NULL;
+
+ /* validate in args */
+ if ((fs == NULL) || (parent == NULL) || (path == NULL)) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, parent);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ xattr_req = dict_new();
+ if (!xattr_req) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gf_uuid_generate(gfid);
+ ret = dict_set_gfuuid(xattr_req, "gfid-req", gfid, true);
+ if (ret) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ GLFS_LOC_FILL_PINODE(inode, loc, ret, errno, out, path);
+
+ /* fop/op */
+ ret = syncop_mknod(subvol, &loc, mode, dev, &iatt, xattr_req, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ /* populate out args */
+ if (ret == 0) {
+ ret = glfs_loc_link(&loc, &iatt);
+ if (ret != 0) {
+ goto out;
+ }
+
+ if (stat)
+ glfs_iatt_to_stat(fs, &iatt, stat);
+
+ ret = glfs_create_object(&loc, &object);
+ }
+out:
+ if (ret && object != NULL) {
+ glfs_h_close(object);
+ object = NULL;
+ }
+
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ if (xattr_req)
+ dict_unref(xattr_req);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return object;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_unlink, 3.4.2)
+int
+pub_glfs_h_unlink(struct glfs *fs, struct glfs_object *parent, const char *path)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+
+ /* validate in args */
+ if ((fs == NULL) || (parent == NULL) || (path == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, parent);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ ret = glfs_resolve_at(fs, subvol, inode, path, &loc, NULL, 0, 0);
+ if (ret != 0) {
+ goto out;
+ }
+
+ if (!IA_ISDIR(loc.inode->ia_type)) {
+ ret = syncop_unlink(subvol, &loc, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+ if (ret != 0) {
+ goto out;
+ }
+ } else {
+ ret = syncop_rmdir(subvol, &loc, 0, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+ if (ret != 0) {
+ goto out;
+ }
+ }
+
+ if (ret == 0)
+ ret = glfs_loc_unlink(&loc);
+
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_opendir, 3.4.2)
+struct glfs_fd *
+pub_glfs_h_opendir(struct glfs *fs, struct glfs_object *object)
+{
+ int ret = -1;
+ struct glfs_fd *glfd = NULL;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL)) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ if (!IA_ISDIR(inode->ia_type)) {
+ ret = -1;
+ errno = ENOTDIR;
+ goto out;
+ }
+
+ glfd = glfs_fd_new(fs);
+ if (!glfd)
+ goto out;
+
+ INIT_LIST_HEAD(&glfd->entries);
+
+ glfd->fd = fd_create(inode, getpid());
+ if (!glfd->fd) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ GLFS_LOC_FILL_INODE(inode, loc, out);
+
+ /* fop/op */
+ ret = syncop_opendir(subvol, &loc, glfd->fd, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ if (ret && glfd) {
+ GF_REF_PUT(glfd);
+ glfd = NULL;
+ } else if (glfd) {
+ glfd_set_state_bind(glfd);
+ }
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return glfd;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_access, 3.6.0)
+int
+pub_glfs_h_access(struct glfs *fs, struct glfs_object *object, int mask)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+
+ DECLARE_OLD_THIS;
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL)) {
+ errno = EINVAL;
+ return ret;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ GLFS_LOC_FILL_INODE(inode, loc, out);
+
+ /* fop/op */
+
+ ret = syncop_access(subvol, &loc, mask, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_extract_handle, 3.4.2)
+ssize_t
+pub_glfs_h_extract_handle(struct glfs_object *object, unsigned char *handle,
+ int len)
+{
+ ssize_t ret = -1;
+
+ /* validate in args */
+ if (object == NULL) {
+ errno = EINVAL;
+ goto out;
+ }
+
+ if (!handle || !len) {
+ ret = GFAPI_HANDLE_LENGTH;
+ goto out;
+ }
+
+ if (len < GFAPI_HANDLE_LENGTH) {
+ errno = ERANGE;
+ goto out;
+ }
+
+ memcpy(handle, object->gfid, GFAPI_HANDLE_LENGTH);
+
+ ret = GFAPI_HANDLE_LENGTH;
+
+out:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_create_from_handle, 3.4.2)
+struct glfs_object *
+pub_glfs_h_create_from_handle(struct glfs *fs, unsigned char *handle, int len,
+ struct stat *stat)
+{
+ loc_t loc = {
+ 0,
+ };
+ int ret = -1;
+ struct iatt iatt = {
+ 0,
+ };
+ inode_t *newinode = NULL;
+ xlator_t *subvol = NULL;
+ struct glfs_object *object = NULL;
+ uint64_t ctx_value = LOOKUP_NOT_NEEDED;
+ gf_boolean_t lookup_needed = _gf_false;
+
+ /* validate in args */
+ if ((fs == NULL) || (handle == NULL) || (len != GFAPI_HANDLE_LENGTH)) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ errno = EIO;
+ goto out;
+ }
+
+ memcpy(loc.gfid, handle, GFAPI_HANDLE_LENGTH);
+
+ /* make sure the gfid received is valid */
+ GF_VALIDATE_OR_GOTO("glfs_h_create_from_handle",
+ !(gf_uuid_is_null(loc.gfid)), out);
+
+ newinode = inode_find(subvol->itable, loc.gfid);
+ if (newinode) {
+ if (!stat) /* No need of lookup */
+ goto found;
+
+ lookup_needed = inode_needs_lookup(newinode, THIS);
+ if (lookup_needed) {
+ loc.inode = newinode;
+ } else {
+ /* populate loc */
+ GLFS_LOC_FILL_INODE(newinode, loc, fill_out);
+
+ /* fop/op */
+ ret = syncop_stat(subvol, &loc, &iatt, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret) {
+ fill_out:
+ /* Drop the reference hold in inode_find */
+ inode_unref(newinode);
+ goto out;
+ }
+
+ glfs_iatt_to_stat(fs, &iatt, stat);
+ goto found;
+ }
+ } else {
+ loc.inode = inode_new(subvol->itable);
+ if (!loc.inode) {
+ errno = ENOMEM;
+ goto out;
+ }
+ }
+
+ ret = syncop_lookup(subvol, &loc, &iatt, 0, 0, 0);
+ DECODE_SYNCOP_ERR(ret);
+ if (ret) {
+ gf_smsg(subvol->name, GF_LOG_WARNING, errno,
+ API_MSG_INODE_REFRESH_FAILED, "gfid=%s", uuid_utoa(loc.gfid),
+ "error=%s", strerror(errno), NULL);
+ goto out;
+ }
+
+ newinode = inode_link(loc.inode, 0, 0, &iatt);
+ if (newinode) {
+ if (newinode == loc.inode) {
+ inode_ctx_set(newinode, THIS, &ctx_value);
+ }
+ inode_lookup(newinode);
+ } else {
+ gf_smsg(subvol->name, GF_LOG_WARNING, errno, API_MSG_INODE_LINK_FAILED,
+ "gfid=%s", uuid_utoa(loc.gfid), NULL);
+ goto out;
+ }
+
+ /* populate stat */
+ if (stat)
+ glfs_iatt_to_stat(fs, &iatt, stat);
+
+found:
+ object = GF_CALLOC(1, sizeof(struct glfs_object), glfs_mt_glfs_object_t);
+ if (object == NULL) {
+ errno = ENOMEM;
+ ret = -1;
+ goto out;
+ }
+
+ /* populate the return object */
+ object->inode = newinode;
+ gf_uuid_copy(object->gfid, object->inode->gfid);
+
+out:
+ /* TODO: Check where the inode ref is being held? */
+ loc_wipe(&loc);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return object;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_close, 3.4.2)
+int
+pub_glfs_h_close(struct glfs_object *object)
+{
+ /* since glfs_h_* objects hold a reference to inode
+ * it is safe to keep lookup count to '0' */
+ inode_forget(object->inode, 0);
+ inode_unref(object->inode);
+ GF_FREE(object);
+
+ return 0;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_truncate, 3.4.2)
+int
+pub_glfs_h_truncate(struct glfs *fs, struct glfs_object *object, off_t offset)
+{
+ loc_t loc = {
+ 0,
+ };
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+
+ DECLARE_OLD_THIS;
+
+ /* validate in args */
+ if (object == NULL) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ GLFS_LOC_FILL_INODE(inode, loc, out);
+
+ /* fop/op */
+ ret = syncop_truncate(subvol, &loc, (off_t)offset, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ /* populate out args */
+ if (ret == 0)
+ ret = glfs_loc_unlink(&loc);
+
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_symlink, 3.4.2)
+struct glfs_object *
+pub_glfs_h_symlink(struct glfs *fs, struct glfs_object *parent,
+ const char *name, const char *data, struct stat *stat)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ uuid_t gfid;
+ dict_t *xattr_req = NULL;
+ struct glfs_object *object = NULL;
+
+ DECLARE_OLD_THIS;
+
+ /* validate in args */
+ if ((parent == NULL) || (name == NULL) || (data == NULL)) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, parent);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ xattr_req = dict_new();
+ if (!xattr_req) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gf_uuid_generate(gfid);
+ ret = dict_set_gfuuid(xattr_req, "gfid-req", gfid, true);
+ if (ret) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ GLFS_LOC_FILL_PINODE(inode, loc, ret, errno, out, name);
+
+ /* fop/op */
+ ret = syncop_symlink(subvol, &loc, data, &iatt, xattr_req, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ /* populate out args */
+ if (ret == 0) {
+ ret = glfs_loc_link(&loc, &iatt);
+ if (ret != 0) {
+ goto out;
+ }
+
+ if (stat)
+ glfs_iatt_to_stat(fs, &iatt, stat);
+
+ ret = glfs_create_object(&loc, &object);
+ }
+
+out:
+ if (ret && object != NULL) {
+ pub_glfs_h_close(object);
+ object = NULL;
+ }
+
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ if (xattr_req)
+ dict_unref(xattr_req);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return object;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_readlink, 3.4.2)
+int
+pub_glfs_h_readlink(struct glfs *fs, struct glfs_object *object, char *buf,
+ size_t bufsiz)
+{
+ loc_t loc = {
+ 0,
+ };
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ char *linkval = NULL;
+
+ DECLARE_OLD_THIS;
+
+ /* validate in args */
+ if ((object == NULL) || (buf == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ GLFS_LOC_FILL_INODE(inode, loc, out);
+
+ /* fop/op */
+ ret = syncop_readlink(subvol, &loc, &linkval, bufsiz, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ /* populate out args */
+ if (ret > 0)
+ memcpy(buf, linkval, ret);
+
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ if (linkval)
+ GF_FREE(linkval);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_link, 3.4.2)
+int
+pub_glfs_h_link(struct glfs *fs, struct glfs_object *linksrc,
+ struct glfs_object *parent, const char *name)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ inode_t *pinode = NULL;
+ loc_t oldloc = {
+ 0,
+ };
+ loc_t newloc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+
+ DECLARE_OLD_THIS;
+
+ /* validate in args */
+ if ((linksrc == NULL) || (parent == NULL) || (name == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, linksrc);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ if (inode->ia_type == IA_IFDIR) {
+ ret = -1;
+ errno = EISDIR;
+ goto out;
+ }
+
+ GLFS_LOC_FILL_INODE(inode, oldloc, out);
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ pinode = glfs_resolve_inode(fs, subvol, parent);
+ if (!pinode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ /* setup newloc based on parent */
+ newloc.parent = inode_ref(pinode);
+ newloc.name = name;
+ ret = glfs_loc_touchup(&newloc);
+ if (ret != 0) {
+ errno = EINVAL;
+ goto out;
+ }
+
+ /* Filling the inode of the hard link to be same as that of the
+ * original file
+ */
+ newloc.inode = inode_ref(inode);
+
+ /* fop/op */
+ ret = syncop_link(subvol, &oldloc, &newloc, &iatt, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret == 0)
+ ret = glfs_loc_link(&newloc, &iatt);
+out:
+ loc_wipe(&oldloc);
+ loc_wipe(&newloc);
+
+ if (inode)
+ inode_unref(inode);
+
+ if (pinode)
+ inode_unref(pinode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_rename, 3.4.2)
+int
+pub_glfs_h_rename(struct glfs *fs, struct glfs_object *olddir,
+ const char *oldname, struct glfs_object *newdir,
+ const char *newname)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *oldpinode = NULL;
+ inode_t *newpinode = NULL;
+ loc_t oldloc = {
+ 0,
+ };
+ loc_t newloc = {
+ 0,
+ };
+ struct iatt oldiatt = {
+ 0,
+ };
+ struct iatt newiatt = {
+ 0,
+ };
+
+ DECLARE_OLD_THIS;
+
+ /* validate in args */
+ if ((olddir == NULL) || (oldname == NULL) || (newdir == NULL) ||
+ (newname == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ oldpinode = glfs_resolve_inode(fs, subvol, olddir);
+ if (!oldpinode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ ret = glfs_resolve_at(fs, subvol, oldpinode, oldname, &oldloc, &oldiatt, 0,
+ 0);
+ if (ret != 0) {
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ newpinode = glfs_resolve_inode(fs, subvol, newdir);
+ if (!newpinode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ ret = glfs_resolve_at(fs, subvol, newpinode, newname, &newloc, &newiatt, 0,
+ 0);
+
+ if (ret && errno != ENOENT && newloc.parent)
+ goto out;
+
+ if (newiatt.ia_type != IA_INVAL) {
+ if ((oldiatt.ia_type == IA_IFDIR) != (newiatt.ia_type == IA_IFDIR)) {
+ /* Either both old and new must be dirs,
+ * or both must be non-dirs. Else, fail.
+ */
+ ret = -1;
+ errno = EEXIST;
+ goto out;
+ }
+ }
+
+ /* TODO: check if new or old is a prefix of the other, and fail EINVAL */
+
+ ret = syncop_rename(subvol, &oldloc, &newloc, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret == 0) {
+ inode_rename(oldloc.parent->table, oldloc.parent, oldloc.name,
+ newloc.parent, newloc.name, oldloc.inode, &oldiatt);
+
+ if (newloc.inode && !inode_has_dentry(newloc.inode))
+ inode_forget(newloc.inode, 0);
+ }
+
+out:
+ loc_wipe(&oldloc);
+ loc_wipe(&newloc);
+
+ if (oldpinode)
+ inode_unref(oldpinode);
+
+ if (newpinode)
+ inode_unref(newpinode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+/*
+ * Given a handle/gfid, find if the corresponding inode is present in
+ * the inode table. If yes create and return the corresponding glfs_object.
+ */
+struct glfs_object *
+glfs_h_find_handle(struct glfs *fs, unsigned char *handle, int len)
+{
+ inode_t *newinode = NULL;
+ xlator_t *subvol = NULL;
+ struct glfs_object *object = NULL;
+ uuid_t gfid;
+
+ /* validate in args */
+ if ((fs == NULL) || (handle == NULL) || (len != GFAPI_HANDLE_LENGTH)) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ errno = EIO;
+ goto out;
+ }
+
+ memcpy(gfid, handle, GFAPI_HANDLE_LENGTH);
+
+ /* make sure the gfid received is valid */
+ GF_VALIDATE_OR_GOTO("glfs_h_find_handle", !(gf_uuid_is_null(gfid)), out);
+
+ newinode = inode_find(subvol->itable, gfid);
+ if (!newinode) {
+ goto out;
+ }
+
+ object = GF_CALLOC(1, sizeof(struct glfs_object), glfs_mt_glfs_object_t);
+ if (object == NULL) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ /* populate the return object. The ref taken here
+ * is un'refed when the application does glfs_h_close() */
+ object->inode = inode_ref(newinode);
+ gf_uuid_copy(object->gfid, object->inode->gfid);
+
+out:
+ /* inode_find takes a reference. Unref it. */
+ if (newinode)
+ inode_unref(newinode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return object;
+}
+
+static void
+glfs_free_upcall_inode(void *to_free)
+{
+ struct glfs_upcall_inode *arg = to_free;
+
+ if (!arg)
+ return;
+
+ if (arg->object)
+ glfs_h_close(arg->object);
+ if (arg->p_object)
+ glfs_h_close(arg->p_object);
+ if (arg->oldp_object)
+ glfs_h_close(arg->oldp_object);
+
+ GF_FREE(arg);
+}
+
+int
+glfs_h_poll_cache_invalidation(struct glfs *fs, struct glfs_upcall *up_arg,
+ struct gf_upcall *upcall_data)
+{
+ int ret = -1;
+ struct glfs_object *p_object = NULL;
+ struct glfs_object *oldp_object = NULL;
+ struct glfs_object *object = NULL;
+ struct gf_upcall_cache_invalidation *ca_data = NULL;
+ struct glfs_upcall_inode *up_inode_arg = NULL;
+
+ ca_data = upcall_data->data;
+ GF_VALIDATE_OR_GOTO("glfs_h_poll_cache_invalidation", ca_data, out);
+
+ object = glfs_h_find_handle(fs, upcall_data->gfid, GFAPI_HANDLE_LENGTH);
+ if (!object) {
+ /* The reason handle creation will fail is because we
+ * couldn't find the inode in the gfapi inode table.
+ *
+ * But since application would have taken inode_ref, the
+ * only case when this can happen is when it has closed
+ * the handle and hence will no more be interested in
+ * the upcall for this particular gfid.
+ */
+ gf_smsg(THIS->name, GF_LOG_DEBUG, errno, API_MSG_CREATE_HANDLE_FAILED,
+ "gfid=%s", uuid_utoa(upcall_data->gfid), NULL);
+ errno = ESTALE;
+ goto out;
+ }
+
+ up_inode_arg = GF_CALLOC(1, sizeof(struct glfs_upcall_inode),
+ glfs_mt_upcall_inode_t);
+ GF_VALIDATE_OR_GOTO("glfs_h_poll_cache_invalidation", up_inode_arg, out);
+
+ up_inode_arg->object = object;
+ up_inode_arg->flags = ca_data->flags;
+ up_inode_arg->expire_time_attr = ca_data->expire_time_attr;
+
+ /* XXX: Update stat as well in case of UP_*_TIMES.
+ * This will be addressed as part of INODE_UPDATE */
+ if (ca_data->flags & GFAPI_INODE_UPDATE_FLAGS) {
+ glfs_iatt_to_stat(fs, &ca_data->stat, &up_inode_arg->buf);
+ }
+
+ if (ca_data->flags & GFAPI_UP_PARENT_TIMES) {
+ p_object = glfs_h_find_handle(fs, ca_data->p_stat.ia_gfid,
+ GFAPI_HANDLE_LENGTH);
+ if (!p_object) {
+ gf_smsg(THIS->name, GF_LOG_DEBUG, errno,
+ API_MSG_CREATE_HANDLE_FAILED, "gfid=%s",
+ uuid_utoa(ca_data->p_stat.ia_gfid), NULL);
+ errno = ESTALE;
+ goto out;
+ }
+
+ glfs_iatt_to_stat(fs, &ca_data->p_stat, &up_inode_arg->p_buf);
+ }
+ up_inode_arg->p_object = p_object;
+
+ /* In case of RENAME, update old parent as well */
+ if (ca_data->flags & GFAPI_UP_RENAME) {
+ oldp_object = glfs_h_find_handle(fs, ca_data->oldp_stat.ia_gfid,
+ GFAPI_HANDLE_LENGTH);
+ if (!oldp_object) {
+ gf_smsg(THIS->name, GF_LOG_DEBUG, errno,
+ API_MSG_CREATE_HANDLE_FAILED, "gfid=%s",
+ uuid_utoa(ca_data->oldp_stat.ia_gfid), NULL);
+ errno = ESTALE;
+ /* By the time we receive upcall old parent_dir may
+ * have got removed. We still need to send upcall
+ * for the file/dir and current parent handles. */
+ up_inode_arg->oldp_object = NULL;
+ ret = 0;
+ }
+
+ glfs_iatt_to_stat(fs, &ca_data->oldp_stat, &up_inode_arg->oldp_buf);
+ }
+ up_inode_arg->oldp_object = oldp_object;
+
+ up_arg->reason = GLFS_UPCALL_INODE_INVALIDATE;
+ up_arg->event = up_inode_arg;
+ up_arg->free_event = glfs_free_upcall_inode;
+
+ ret = 0;
+
+out:
+ if (ret) {
+ /* Close p_object and oldp_object as well if being referenced.*/
+ if (object)
+ glfs_h_close(object);
+
+ /* Set reason to prevent applications from using ->event */
+ up_arg->reason = GLFS_UPCALL_EVENT_NULL;
+ GF_FREE(up_inode_arg);
+ }
+ return ret;
+}
+
+void
+glfs_release_upcall(void *ptr)
+{
+ struct glfs_upcall *to_free = ptr;
+
+ if (to_free->event)
+ to_free->free_event(to_free->event);
+}
+
+/*
+ * This API is used to poll for upcall events stored in the upcall list.
+ * Current users of this API is NFS-Ganesha. In case of any event received, it
+ * will be mapped appropriately into 'glfs_upcall' along with the handle object
+ * to be passed to NFS-Ganesha.
+ *
+ * On success, applications need to check if up_arg is not-NULL or errno is not
+ * ENOENT. glfs_upcall_get_reason() can be used to decide what kind of event
+ * has been received.
+ *
+ * Current supported upcall_events:
+ * GLFS_UPCALL_INODE_INVALIDATE
+ *
+ * After processing the event, applications need to free 'up_arg' by calling
+ * glfs_free().
+ *
+ * Also similar to I/Os, the application should ideally stop polling before
+ * calling glfs_fini(..). Hence making an assumption that 'fs' & ctx structures
+ * cannot be freed while in this routine.
+ */
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_poll_upcall, 3.7.16)
+int
+pub_glfs_h_poll_upcall(struct glfs *fs, struct glfs_upcall **up_arg)
+{
+ upcall_entry *u_list = NULL;
+ upcall_entry *tmp = NULL;
+ xlator_t *subvol = NULL;
+ glusterfs_ctx_t *ctx = NULL;
+ int ret = -1;
+ struct gf_upcall *upcall_data = NULL;
+
+ DECLARE_OLD_THIS;
+
+ if (!up_arg) {
+ errno = EINVAL;
+ goto err;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, err);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ errno = EIO;
+ goto restore;
+ }
+
+ /* Ideally applications should stop polling before calling
+ * 'glfs_fini'. Yet cross check if cleanup has started. */
+ pthread_mutex_lock(&fs->mutex);
+ {
+ ctx = fs->ctx;
+
+ if (ctx->cleanup_started) {
+ pthread_mutex_unlock(&fs->mutex);
+ goto out;
+ }
+
+ fs->pin_refcnt++;
+
+ /* once we call this function, the applications seems to be
+ * interested in events, enable caching them */
+ fs->cache_upcalls = _gf_true;
+ }
+ pthread_mutex_unlock(&fs->mutex);
+
+ pthread_mutex_lock(&fs->upcall_list_mutex);
+ {
+ list_for_each_entry_safe(u_list, tmp, &fs->upcall_list, upcall_list)
+ {
+ list_del_init(&u_list->upcall_list);
+ upcall_data = &u_list->upcall_data;
+ break;
+ }
+ }
+ /* No other thread can delete this entry. So unlock it */
+ pthread_mutex_unlock(&fs->upcall_list_mutex);
+
+ if (upcall_data) {
+ switch (upcall_data->event_type) {
+ case GF_UPCALL_CACHE_INVALIDATION:
+ *up_arg = GLFS_CALLOC(1, sizeof(struct gf_upcall),
+ glfs_release_upcall,
+ glfs_mt_upcall_entry_t);
+ if (!*up_arg) {
+ errno = ENOMEM;
+ break; /* goto free u_list */
+ }
+
+ /* XXX: Need to revisit this to support
+ * GLFS_UPCALL_INODE_UPDATE if required. */
+ ret = glfs_h_poll_cache_invalidation(fs, *up_arg, upcall_data);
+ if (ret || (*up_arg)->reason == GLFS_UPCALL_EVENT_NULL) {
+ /* It could so happen that the file which got
+ * upcall notification may have got deleted by
+ * the same client. Irrespective of the error,
+ * return with an error or success+ENOENT. */
+ if ((*up_arg)->reason == GLFS_UPCALL_EVENT_NULL)
+ errno = ENOENT;
+
+ GLFS_FREE(*up_arg);
+ *up_arg = NULL;
+ }
+ break;
+ case GF_UPCALL_RECALL_LEASE:
+ gf_log("glfs_h_poll_upcall", GF_LOG_DEBUG,
+ "UPCALL_RECALL_LEASE is not implemented yet");
+ /* fallthrough till we support leases */
+ case GF_UPCALL_EVENT_NULL:
+ /* no 'default:' label, to force handling all upcall events */
+ errno = ENOENT;
+ break;
+ }
+
+ GF_FREE(u_list->upcall_data.data);
+ GF_FREE(u_list);
+ } else {
+ /* fs->upcall_list was empty, no upcall events cached */
+ errno = ENOENT;
+ }
+
+ ret = 0;
+
+out:
+ pthread_mutex_lock(&fs->mutex);
+ {
+ fs->pin_refcnt--;
+ }
+ pthread_mutex_unlock(&fs->mutex);
+
+ glfs_subvol_done(fs, subvol);
+
+restore:
+ __GLFS_EXIT_FS;
+err:
+ return ret;
+}
+
+static gf_boolean_t log_upcall370 = _gf_true; /* log once */
+
+/* The old glfs_h_poll_upcall interface requires intimate knowledge of the
+ * structures that are returned to the calling application. This is not
+ * recommended, as the returned structures need to returned correctly (handles
+ * closed, memory free'd with the unavailable GF_FREE(), and possibly more.)
+ *
+ * To the best of our knowledge, only NFS-Ganesha uses the upcall events
+ * through gfapi. We keep this backwards compatibility function around so that
+ * applications using the existing implementation do not break.
+ *
+ * WARNING: this function will be removed in the future.
+ */
+GFAPI_SYMVER_PUBLIC(glfs_h_poll_upcall370, glfs_h_poll_upcall, 3.7.0)
+int
+pub_glfs_h_poll_upcall370(struct glfs *fs, struct glfs_callback_arg *up_arg)
+{
+ struct glfs_upcall *upcall = NULL;
+ int ret = -1;
+
+ if (log_upcall370) {
+ log_upcall370 = _gf_false;
+ gf_log(THIS->name, GF_LOG_WARNING,
+ "this application is "
+ "compiled against an old version of libgfapi, it "
+ "should use glfs_free() to release the structure "
+ "returned by glfs_h_poll_upcall() - for more details, "
+ "see http://review.gluster.org/14701");
+ }
+
+ ret = pub_glfs_h_poll_upcall(fs, &upcall);
+ if (ret == 0) {
+ up_arg->fs = fs;
+ if ((errno == ENOENT) || !upcall || !upcall->event) {
+ up_arg->reason = GLFS_UPCALL_EVENT_NULL;
+ goto out;
+ }
+
+ up_arg->reason = upcall->reason;
+
+ if (upcall->reason == GLFS_UPCALL_INODE_INVALIDATE) {
+ struct glfs_callback_inode_arg *cb_inode = NULL;
+ struct glfs_upcall_inode *up_inode = NULL;
+
+ cb_inode = GF_CALLOC(1, sizeof(struct glfs_callback_inode_arg),
+ glfs_mt_upcall_inode_t);
+ if (!cb_inode) {
+ errno = ENOMEM;
+ ret = -1;
+ goto out;
+ }
+
+ up_inode = upcall->event;
+
+ /* copy attributes one by one, the memory layout might
+ * be different between the old glfs_callback_inode_arg
+ * and new glfs_upcall_inode */
+ cb_inode->object = up_inode->object;
+ cb_inode->flags = up_inode->flags;
+ memcpy(&cb_inode->buf, &up_inode->buf, sizeof(struct stat));
+ cb_inode->expire_time_attr = up_inode->expire_time_attr;
+ cb_inode->p_object = up_inode->p_object;
+ memcpy(&cb_inode->p_buf, &up_inode->p_buf, sizeof(struct stat));
+ cb_inode->oldp_object = up_inode->oldp_object;
+ memcpy(&cb_inode->oldp_buf, &up_inode->oldp_buf,
+ sizeof(struct stat));
+
+ up_arg->event_arg = cb_inode;
+ }
+ }
+
+out:
+ if (upcall) {
+ /* we can not use glfs_free() here, objects need to stay */
+ GF_FREE(upcall->event);
+ GF_FREE(upcall);
+ }
+
+ return ret;
+}
+
+#ifdef HAVE_ACL_LIBACL_H
+#include <glusterfs/glusterfs-acl.h>
+#include <acl/libacl.h>
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_acl_set, 3.7.0)
+int
+pub_glfs_h_acl_set(struct glfs *fs, struct glfs_object *object,
+ const acl_type_t type, const acl_t acl)
+{
+ int ret = -1;
+ char *acl_s = NULL;
+ const char *acl_key = NULL;
+ struct glfs_object *new_object = NULL;
+
+ DECLARE_OLD_THIS;
+
+ if (!object || !acl) {
+ errno = EINVAL;
+ return ret;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ acl_key = gf_posix_acl_get_key(type);
+ if (!acl_key)
+ goto out;
+
+ acl_s = acl_to_any_text(acl, NULL, ',', TEXT_ABBREVIATE | TEXT_NUMERIC_IDS);
+ if (!acl_s)
+ goto out;
+
+ if (IA_ISLNK(object->inode->ia_type)) {
+ new_object = glfs_h_resolve_symlink(fs, object);
+ if (new_object == NULL)
+ goto out;
+ } else
+ new_object = object;
+
+ ret = pub_glfs_h_setxattrs(fs, new_object, acl_key, acl_s,
+ strlen(acl_s) + 1, 0);
+
+ acl_free(acl_s);
+
+out:
+ if (IA_ISLNK(object->inode->ia_type) && new_object)
+ glfs_h_close(new_object);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_acl_get, 3.7.0)
+acl_t
+pub_glfs_h_acl_get(struct glfs *fs, struct glfs_object *object,
+ const acl_type_t type)
+{
+ int ret = 0;
+ acl_t acl = NULL;
+ char *acl_s = NULL;
+ dict_t *xattr = NULL;
+ const char *acl_key = NULL;
+ struct glfs_object *new_object = NULL;
+
+ DECLARE_OLD_THIS;
+
+ if (!object) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ acl_key = gf_posix_acl_get_key(type);
+ if (!acl_key)
+ goto out;
+
+ if (IA_ISLNK(object->inode->ia_type)) {
+ new_object = glfs_h_resolve_symlink(fs, object);
+ if (new_object == NULL)
+ goto out;
+ } else
+ new_object = object;
+
+ ret = glfs_h_getxattrs_common(fs, new_object, &xattr, acl_key, _gf_false);
+ if (ret)
+ goto out;
+
+ ret = dict_get_str(xattr, (char *)acl_key, &acl_s);
+ if (ret)
+ goto out;
+
+ acl = acl_from_text(acl_s);
+
+out:
+ if (xattr)
+ dict_unref(xattr);
+
+ if (IA_ISLNK(object->inode->ia_type) && new_object)
+ glfs_h_close(new_object);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return acl;
+}
+#else /* !HAVE_ACL_LIBACL_H */
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_acl_get, 3.7.0)
+acl_t
+pub_glfs_h_acl_get(struct glfs *fs, struct glfs_object *object,
+ const acl_type_t type)
+{
+ errno = ENOTSUP;
+ return NULL;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_acl_set, 3.7.0)
+int
+pub_glfs_h_acl_set(struct glfs *fs, struct glfs_object *object,
+ const acl_type_t type, const acl_t acl)
+{
+ errno = ENOTSUP;
+ return -1;
+}
+#endif
+
+/* The API to perform read using anonymous fd */
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_anonymous_read, 3.7.0)
+ssize_t
+pub_glfs_h_anonymous_read(struct glfs *fs, struct glfs_object *object,
+ const void *buf, size_t count, off_t offset)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ iov.iov_base = (void *)buf;
+ iov.iov_len = count;
+
+ ret = glfs_anonymous_preadv(fs, object, &iov, 1, offset, 0);
+
+ return ret;
+}
+
+/* The API to perform write using anonymous fd */
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_anonymous_write, 3.7.0)
+ssize_t
+pub_glfs_h_anonymous_write(struct glfs *fs, struct glfs_object *object,
+ const void *buf, size_t count, off_t offset)
+{
+ struct iovec iov = {
+ 0,
+ };
+ ssize_t ret = 0;
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ iov.iov_base = (void *)buf;
+ iov.iov_len = count;
+
+ ret = glfs_anonymous_pwritev(fs, object, &iov, 1, offset, 0);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_object_copy, 3.11.0)
+struct glfs_object *
+pub_glfs_object_copy(struct glfs_object *src)
+{
+ struct glfs_object *object = NULL;
+
+ GF_VALIDATE_OR_GOTO("glfs_dup_object", src, out);
+
+ object = GF_CALLOC(1, sizeof(struct glfs_object), glfs_mt_glfs_object_t);
+ if (object == NULL) {
+ errno = ENOMEM;
+ gf_smsg(THIS->name, GF_LOG_WARNING, errno, API_MSG_CREATE_HANDLE_FAILED,
+ "glfs_dup_object gfid=%s", uuid_utoa(src->inode->gfid), NULL);
+ return NULL;
+ }
+
+ object->inode = inode_ref(src->inode);
+ gf_uuid_copy(object->gfid, src->inode->gfid);
+
+out:
+ return object;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_xreaddirplus_get_object, 3.11.0)
+struct glfs_object *
+pub_glfs_xreaddirplus_get_object(struct glfs_xreaddirp_stat *xstat)
+{
+ GF_VALIDATE_OR_GOTO("glfs_xreaddirplus_get_object", xstat, out);
+
+ if (!(xstat->flags_handled & GFAPI_XREADDIRP_HANDLE))
+ gf_smsg(THIS->name, GF_LOG_ERROR, errno, API_MSG_HANDLE_NOT_SET,
+ "GFAPI_XREADDIRP_HANDLE xstat=%p", xstat, "handle=%x",
+ xstat->flags_handled, NULL);
+
+ return xstat->object;
+
+out:
+ return NULL;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_h_lease, 4.0.0)
+int
+pub_glfs_h_lease(struct glfs *fs, struct glfs_object *object,
+ struct glfs_lease *lease)
+{
+ int ret = -1;
+ xlator_t *subvol = NULL;
+ inode_t *inode = NULL;
+ loc_t loc = {
+ 0,
+ };
+ struct gf_lease gf_lease = {
+ 0,
+ };
+
+ /* validate in args */
+ if ((fs == NULL) || (object == NULL)) {
+ errno = EINVAL;
+ return -1;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* get the active volume */
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ /* get/refresh the in arg objects inode in correlation to the xlator */
+ inode = glfs_resolve_inode(fs, subvol, object);
+ if (!inode) {
+ errno = ESTALE;
+ goto out;
+ }
+
+ /* populate loc */
+ GLFS_LOC_FILL_INODE(inode, loc, out);
+
+ glfs_lease_to_gf_lease(lease, &gf_lease);
+
+ ret = syncop_lease(subvol, &loc, &gf_lease, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ gf_lease_to_glfs_lease(&gf_lease, lease);
+
+out:
+ loc_wipe(&loc);
+
+ if (inode)
+ inode_unref(inode);
+
+ glfs_subvol_done(fs, subvol);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
diff --git a/api/src/glfs-handles.h b/api/src/glfs-handles.h
new file mode 100644
index 00000000000..4d039b9c76b
--- /dev/null
+++ b/api/src/glfs-handles.h
@@ -0,0 +1,355 @@
+/*
+ Copyright (c) 2013-2018 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+#ifndef _GLFS_HANDLES_H
+#define _GLFS_HANDLES_H
+
+#include "glfs.h"
+
+/* GLFS OBJECT BASED OPERATIONS
+ *
+ * The following APIs are introduced to provide an API framework that can work
+ * with gluster objects (files and directories), instead of absolute paths.
+ *
+ * The following API set can be related to the POSIX *at interfaces (like
+ * openat (2)). The intention of these APIs is to be able to operate based
+ * on parent object and looking up or creating child objects within, OR to be
+ * used on the actual object thus looked up or created, and retrieve information
+ * regarding the same.
+ *
+ * The APIs also provide for generating an opaque invariant handle to the
+ * object, that can later be used to lookup the object, instead of the regular
+ * glfs_h_* variants. The APIs that provide this behaviour are,
+ * glfs_h_extract_handle and glfs_h_create_from_handle.
+ *
+ * The object handles can be transitioned to fd based operations as supported
+ * by glfs.h calls, using the glfs_h_open call. This provides a way to move
+ * from objects to fd's akin to moving from path to fd for required operations.
+ *
+ * NOTE: The opaque invariant handle is the GFID of the object in reality, but
+ * maintained as an opaque data value, for potential internal changes to the
+ * same without impacting the caller.
+ *
+ * NOTE: Currently looking up an object can create multiple object handles to
+ * the same, i.e distinct glfs_object *. Hence each such looked up or received
+ * handle from other calls, would need to be closed. In the future, for a given
+ * object these pointers would be the same, and an ease of use API to forget all
+ * instances of this bject would be provided (instead of a per lookup close).
+ * This should not change the APIs in their current form.
+ *
+ */
+
+/* Handle length for object handles returned from glfs_h_extract_handle or
+ * glfs_h_create_from_handle */
+#define GFAPI_HANDLE_LENGTH 16
+
+/* These flags should be in sync to the ones defined in upcall.h */
+#define GFAPI_UP_NLINK 0x00000001 /* update nlink */
+#define GFAPI_UP_MODE 0x00000002 /* update mode and ctime */
+#define GFAPI_UP_OWN 0x00000004 /* update mode,uid,gid and ctime */
+#define GFAPI_UP_SIZE 0x00000008 /* update fsize */
+#define GFAPI_UP_TIMES 0x00000010 /* update all times */
+#define GFAPI_UP_ATIME 0x00000020 /* update atime only */
+#define GFAPI_UP_PERM \
+ 0x00000040 /* update fields needed for \
+ permission checking */
+#define GFAPI_UP_RENAME \
+ 0x00000080 /* this is a rename op - \
+ delete the cache entry */
+#define GFAPI_UP_FORGET \
+ 0x00000100 /* inode_forget on server side - \
+ invalidate the cache entry */
+#define GFAPI_UP_PARENT_TIMES 0x00000200 /* update parent dir times */
+
+#define GFAPI_INODE_UPDATE_FLAGS \
+ (GFAPI_UP_NLINK | GFAPI_UP_MODE | GFAPI_UP_OWN | GFAPI_UP_SIZE | \
+ GFAPI_UP_TIMES | GFAPI_UP_ATIME)
+
+/* Portability non glibc c++ build systems */
+#ifndef __THROW
+#if defined __cplusplus
+#define __THROW throw()
+#else
+#define __THROW
+#endif
+#endif
+
+__BEGIN_DECLS
+
+/*
+ * Notes:
+ *
+ * The file object handle. One per looked up, created file/directory
+ *
+ * This had been introduced to facilitate gfid/inode based gfapi
+ * - a requirement introduced by nfs-ganesha
+ */
+struct glfs_object;
+typedef struct glfs_object glfs_object_t;
+
+/* Functions for getting details about the glfs_upcall_inode
+ *
+ * None of the pointers returned by the below functions should be free()'d,
+ * glfs_free()'d or glfs_h_close()'d by the application.
+ *
+ * Releasing of the structures is done by passing the glfs_upcall pointer
+ * to glfs_free().
+ */
+struct glfs_upcall_inode;
+typedef struct glfs_upcall_inode glfs_upcall_inode_t;
+
+glfs_object_t *
+glfs_upcall_inode_get_object(glfs_upcall_inode_t *arg) __THROW
+ GFAPI_PUBLIC(glfs_upcall_inode_get_object, 3.7.16);
+
+uint64_t
+glfs_upcall_inode_get_flags(glfs_upcall_inode_t *arg) __THROW
+ GFAPI_PUBLIC(glfs_upcall_inode_get_flags, 3.7.16);
+
+struct stat *
+glfs_upcall_inode_get_stat(glfs_upcall_inode_t *arg) __THROW
+ GFAPI_PUBLIC(glfs_upcall_inode_get_stat, 3.7.16);
+
+uint64_t
+glfs_upcall_inode_get_expire(glfs_upcall_inode_t *arg) __THROW
+ GFAPI_PUBLIC(glfs_upcall_inode_get_expire, 3.7.16);
+
+glfs_object_t *
+glfs_upcall_inode_get_pobject(glfs_upcall_inode_t *arg) __THROW
+ GFAPI_PUBLIC(glfs_upcall_inode_get_pobject, 3.7.16);
+
+struct stat *
+glfs_upcall_inode_get_pstat(glfs_upcall_inode_t *arg) __THROW
+ GFAPI_PUBLIC(glfs_upcall_inode_get_pstat, 3.7.16);
+
+glfs_object_t *
+glfs_upcall_inode_get_oldpobject(glfs_upcall_inode_t *arg) __THROW
+ GFAPI_PUBLIC(glfs_upcall_inode_get_oldpobject, 3.7.16);
+
+struct stat *
+glfs_upcall_inode_get_oldpstat(glfs_upcall_inode_t *arg) __THROW
+ GFAPI_PUBLIC(glfs_upcall_inode_get_oldpstat, 3.7.16);
+
+/* Handle based operations */
+/* Operations that generate handles */
+glfs_object_t *
+glfs_h_lookupat(glfs_t *fs, glfs_object_t *parent, const char *path,
+ struct stat *stat, int follow) __THROW
+ GFAPI_PUBLIC(glfs_h_lookupat, 3.7.4);
+
+glfs_object_t *
+glfs_h_creat(glfs_t *fs, glfs_object_t *parent, const char *path, int flags,
+ mode_t mode, struct stat *sb) __THROW
+ GFAPI_PUBLIC(glfs_h_creat, 3.4.2);
+
+glfs_object_t *
+glfs_h_mkdir(glfs_t *fs, glfs_object_t *parent, const char *path, mode_t flags,
+ struct stat *sb) __THROW GFAPI_PUBLIC(glfs_h_mkdir, 3.4.2);
+
+glfs_object_t *
+glfs_h_mknod(glfs_t *fs, glfs_object_t *parent, const char *path, mode_t mode,
+ dev_t dev, struct stat *sb) __THROW
+ GFAPI_PUBLIC(glfs_h_mknod, 3.4.2);
+
+glfs_object_t *
+glfs_h_symlink(glfs_t *fs, glfs_object_t *parent, const char *name,
+ const char *data, struct stat *stat) __THROW
+ GFAPI_PUBLIC(glfs_h_symlink, 3.4.2);
+
+/* Operations on the actual objects */
+int
+glfs_h_unlink(glfs_t *fs, glfs_object_t *parent, const char *path) __THROW
+ GFAPI_PUBLIC(glfs_h_unlink, 3.4.2);
+
+int
+glfs_h_close(glfs_object_t *object) __THROW GFAPI_PUBLIC(glfs_h_close, 3.4.2);
+
+int
+glfs_caller_specific_init(void *uid_caller_key, void *gid_caller_key,
+ void *future) __THROW
+ GFAPI_PUBLIC(glfs_caller_specific_init, 3.5.0);
+
+int
+glfs_h_truncate(glfs_t *fs, glfs_object_t *object, off_t offset) __THROW
+ GFAPI_PUBLIC(glfs_h_truncate, 3.4.2);
+
+int
+glfs_h_stat(glfs_t *fs, glfs_object_t *object, struct stat *stat) __THROW
+ GFAPI_PUBLIC(glfs_h_stat, 3.4.2);
+
+int
+glfs_h_statfs(glfs_t *fs, glfs_object_t *object, struct statvfs *stat) __THROW
+ GFAPI_PUBLIC(glfs_h_statfs, 3.7.0);
+
+int
+glfs_h_getattrs(glfs_t *fs, glfs_object_t *object, struct stat *stat) __THROW
+ GFAPI_PUBLIC(glfs_h_getattrs, 3.4.2);
+
+int
+glfs_h_getxattrs(glfs_t *fs, glfs_object_t *object, const char *name,
+ void *value, size_t size) __THROW
+ GFAPI_PUBLIC(glfs_h_getxattrs, 3.5.1);
+
+int
+glfs_h_setattrs(glfs_t *fs, glfs_object_t *object, struct stat *sb,
+ int valid) __THROW GFAPI_PUBLIC(glfs_h_setattrs, 3.4.2);
+
+int
+glfs_h_setxattrs(glfs_t *fs, glfs_object_t *object, const char *name,
+ const void *value, size_t size, int flags) __THROW
+ GFAPI_PUBLIC(glfs_h_setxattrs, 3.5.0);
+
+int
+glfs_h_readlink(glfs_t *fs, glfs_object_t *object, char *buf,
+ size_t bufsiz) __THROW GFAPI_PUBLIC(glfs_h_readlink, 3.4.2);
+
+int
+glfs_h_link(glfs_t *fs, glfs_object_t *linktgt, glfs_object_t *parent,
+ const char *name) __THROW GFAPI_PUBLIC(glfs_h_link, 3.4.2);
+
+int
+glfs_h_rename(glfs_t *fs, glfs_object_t *olddir, const char *oldname,
+ glfs_object_t *newdir, const char *newname) __THROW
+ GFAPI_PUBLIC(glfs_h_rename, 3.4.2);
+
+int
+glfs_h_removexattrs(glfs_t *fs, glfs_object_t *object, const char *name) __THROW
+ GFAPI_PUBLIC(glfs_h_removexattrs, 3.5.1);
+
+/* Operations enabling opaque invariant handle to object transitions */
+ssize_t
+glfs_h_extract_handle(glfs_object_t *object, unsigned char *handle,
+ int len) __THROW
+ GFAPI_PUBLIC(glfs_h_extract_handle, 3.4.2);
+
+/* Given a handle, looks up the inode and creates glfs_object.
+ * In addition, if provided 'stat', copies the inode attributes
+ */
+glfs_object_t *
+glfs_h_create_from_handle(glfs_t *fs, unsigned char *handle, int len,
+ struct stat *stat) __THROW
+ GFAPI_PUBLIC(glfs_h_create_from_handle, 3.4.2);
+
+/* Operations enabling object handles to fd transitions */
+glfs_fd_t *
+glfs_h_opendir(glfs_t *fs, glfs_object_t *object) __THROW
+ GFAPI_PUBLIC(glfs_h_opendir, 3.4.2);
+
+glfs_fd_t *
+glfs_h_open(glfs_t *fs, glfs_object_t *object, int flags) __THROW
+ GFAPI_PUBLIC(glfs_h_open, 3.4.2);
+
+int
+glfs_h_access(glfs_t *fs, glfs_object_t *object, int mask) __THROW
+ GFAPI_PUBLIC(glfs_h_access, 3.6.0);
+
+struct glfs_object *
+glfs_h_creat_open(struct glfs *fs, struct glfs_object *parent, const char *path,
+ int flags, mode_t mode, struct stat *stat,
+ struct glfs_fd **out_fd) __THROW
+ GFAPI_PUBLIC(glfs_h_creat_open, 6.6);
+/*
+ SYNOPSIS
+
+ glfs_h_poll_upcall: Poll for upcall events given a 'glfs' object.
+
+ DESCRIPTION
+
+ This API is used to poll for upcall events stored in the
+ upcall list. Current users of this API is NFS-Ganesha.
+ In case of any event received, it will be mapped appropriately
+ into 'glfs_upcall' along with the handle('glfs_object') to be
+ passed to NFS-Ganesha.
+
+ In case of success, applications need to check the value of
+ cbk->handle to be NON NULL before processing the upcall
+ events.
+
+ PARAMETERS
+
+ @fs: glfs object to poll the upcall events for
+ @cbk: Pointer that will contain an upcall event for use by the application.
+ Application is responsible for free'ing the structure with glfs_free().
+
+ RETURN VALUES
+
+ 0 : Success.
+ -1 : Error condition, mostly due to out of memory.
+
+*/
+
+int
+glfs_h_poll_upcall(glfs_t *fs, glfs_upcall_t **cbk) __THROW
+ GFAPI_PUBLIC(glfs_h_poll_upcall, 3.7.16);
+
+int
+glfs_h_acl_set(glfs_t *fs, glfs_object_t *object, const acl_type_t type,
+ const acl_t acl) __THROW GFAPI_PUBLIC(glfs_h_acl_set, 3.7.0);
+
+acl_t
+glfs_h_acl_get(glfs_t *fs, glfs_object_t *object, const acl_type_t type) __THROW
+ GFAPI_PUBLIC(glfs_h_acl_get, 3.7.0);
+
+size_t
+glfs_h_anonymous_write(glfs_t *fs, glfs_object_t *object, const void *buf,
+ size_t count, off_t offset) __THROW
+ GFAPI_PUBLIC(glfs_h_anonymous_write, 3.7.0);
+
+ssize_t
+glfs_h_anonymous_read(glfs_t *fs, glfs_object_t *object, const void *buf,
+ size_t count, off_t offset) __THROW
+ GFAPI_PUBLIC(glfs_h_anonymous_read, 3.7.0);
+
+/*
+ * Caution: The object returned by this object gets freed as part
+ * of 'glfs_free(xstat)'. Make sure to have a copy using 'glfs_object_copy()'
+ * to use post that.
+ */
+glfs_object_t *
+glfs_xreaddirplus_get_object(struct glfs_xreaddirp_stat *xstat) __THROW
+ GFAPI_PUBLIC(glfs_xreaddirplus_get_object, 3.11.0);
+
+/* Applications should close the object returned by this routine
+ * explicitly using 'glfs_h_close()'
+ */
+glfs_object_t *
+glfs_object_copy(glfs_object_t *src) __THROW
+ GFAPI_PUBLIC(glfs_object_copy, 3.11.0);
+
+int
+glfs_h_lease(glfs_t *fs, glfs_object_t *object, glfs_lease_t *lease) __THROW
+ GFAPI_PUBLIC(glfs_h_lease, 4.0.0);
+
+glfs_object_t *
+glfs_h_find_handle(glfs_t *fs, unsigned char *handle, int len) __THROW
+ GFAPI_PUBLIC(glfs_h_lease, 4.0.0);
+
+/* Functions for getting details about the glfs_upcall_lease
+ *
+ * None of the pointers returned by the below functions should be free()'d,
+ * glfs_free()'d or glfs_h_close()'d by the application.
+ *
+ * Releasing of the structures is done by passing the glfs_upcall pointer
+ * to glfs_free().
+ */
+struct glfs_upcall_lease;
+typedef struct glfs_upcall_lease glfs_upcall_lease_t;
+
+glfs_object_t *
+glfs_upcall_lease_get_object(glfs_upcall_lease_t *arg) __THROW
+ GFAPI_PUBLIC(glfs_upcall_lease_get_object, 4.1.6);
+
+uint32_t
+glfs_upcall_lease_get_lease_type(glfs_upcall_lease_t *arg) __THROW
+ GFAPI_PUBLIC(glfs_upcall_lease_get_lease_type, 4.1.6);
+
+__END_DECLS
+
+#endif /* !_GLFS_HANDLES_H */
diff --git a/api/src/glfs-internal.h b/api/src/glfs-internal.h
new file mode 100644
index 00000000000..7cc3b18a104
--- /dev/null
+++ b/api/src/glfs-internal.h
@@ -0,0 +1,756 @@
+/*
+ Copyright (c) 2012-2018 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+#ifndef _GLFS_INTERNAL_H
+#define _GLFS_INTERNAL_H
+
+#include <glusterfs/xlator.h>
+#include <glusterfs/glusterfs.h>
+#include <glusterfs/upcall-utils.h>
+#include "glfs-handles.h"
+#include <glusterfs/refcount.h>
+#include <glusterfs/syncop.h>
+
+#define GLFS_SYMLINK_MAX_FOLLOW 2048
+
+#define DEFAULT_REVAL_COUNT 1
+
+/*
+ * According to pthread mutex and conditional variable ( cond,
+ * child_down_count, upcall mutex and mutex) initialization of struct glfs
+ * members, below GLFS_INIT_* flags are set in 'pthread_flags' member of struct
+ * glfs. The flags are set from glfs_init() and glfs_new_from_ctx() functions
+ * as part of fs inititialization.
+ *
+ * These flag bits are validated in glfs_fini() to destroy all or partially
+ * initialized mutex and conditional variables of glfs object.
+ * If you introduce new pthread mutex or conditional variable in glfs object,
+ * please make sure you have a flag bit intorduced here for proper cleanup
+ * in glfs_fini().
+ *
+ */
+
+#define PTHREAD_MUTEX_INIT(mutex, attr, flags, mask, label) \
+ do { \
+ int __ret = -1; \
+ __ret = pthread_mutex_init(mutex, attr); \
+ if (__ret == 0) \
+ flags |= mask; \
+ else \
+ goto label; \
+ } while (0)
+
+#define PTHREAD_MUTEX_DESTROY(mutex, flags, mask) \
+ do { \
+ if (flags & mask) \
+ (void)pthread_mutex_destroy(mutex); \
+ } while (0)
+
+#define PTHREAD_COND_INIT(cond, attr, flags, mask, label) \
+ do { \
+ int __ret = -1; \
+ __ret = pthread_cond_init(cond, attr); \
+ if (__ret == 0) \
+ flags |= mask; \
+ else \
+ goto label; \
+ } while (0)
+
+#define PTHREAD_COND_DESTROY(cond, flags, mask) \
+ do { \
+ if (flags & mask) \
+ (void)pthread_cond_destroy(cond); \
+ } while (0)
+
+#define GLFS_INIT_MUTEX 0x00000001 /* pthread_mutex_flag */
+#define GLFS_INIT_COND 0x00000002 /* pthread_cond_flag */
+#define GLFS_INIT_COND_CHILD 0x00000004 /* pthread_cond_child_down_flag */
+#define GLFS_INIT_MUTEX_UPCALL 0x00000008 /* pthread_mutex_upcall_flag */
+
+#ifndef GF_DARWIN_HOST_OS
+#ifndef GFAPI_PUBLIC
+#define GFAPI_PUBLIC(sym, ver) /**/
+#endif
+#ifndef GFAPI_PRIVATE
+#define GFAPI_PRIVATE(sym, ver) /**/
+#endif
+#if __GNUC__ >= 10
+#define GFAPI_SYMVER_PUBLIC_DEFAULT(fn, ver) \
+ __attribute__((__symver__(STR(fn) "@@GFAPI_" STR(ver))))
+
+#define GFAPI_SYMVER_PRIVATE_DEFAULT(fn, ver) \
+ __attribute__((__symver__(STR(fn) "@@GFAPI_PRIVATE_" STR(ver))))
+
+#define GFAPI_SYMVER_PUBLIC(fn1, fn2, ver) \
+ __attribute__((__symver__(STR(fn2) "@GFAPI_" STR(ver))))
+
+#define GFAPI_SYMVER_PRIVATE(fn1, fn2, ver) \
+ __attribute__((__symver__(STR(fn2) "@GFAPI_PRIVATE_" STR(ver))))
+
+#else
+#define GFAPI_SYMVER_PUBLIC_DEFAULT(fn, ver) \
+ asm(".symver pub_" STR(fn) ", " STR(fn) "@@GFAPI_" STR(ver));
+
+#define GFAPI_SYMVER_PRIVATE_DEFAULT(fn, ver) \
+ asm(".symver priv_" STR(fn) ", " STR(fn) "@@GFAPI_PRIVATE_" STR(ver));
+
+#define GFAPI_SYMVER_PUBLIC(fn1, fn2, ver) \
+ asm(".symver pub_" STR(fn1) ", " STR(fn2) "@GFAPI_" STR(ver));
+
+#define GFAPI_SYMVER_PRIVATE(fn1, fn2, ver) \
+ asm(".symver priv_" STR(fn1) ", " STR(fn2) "@GFAPI_PRIVATE_" STR(ver));
+#endif
+#define STR(str) #str
+#else
+#ifndef GFAPI_PUBLIC
+#define GFAPI_PUBLIC(sym, ver) __asm("_" __STRING(sym) "$GFAPI_" __STRING(ver));
+#endif
+#ifndef GFAPI_PRIVATE
+#define GFAPI_PRIVATE(sym, ver) \
+ __asm("_" __STRING(sym) "$GFAPI_PRIVATE_" __STRING(ver));
+#endif
+#define GFAPI_SYMVER_PUBLIC_DEFAULT(fn, dotver) /**/
+#define GFAPI_SYMVER_PRIVATE_DEFAULT(fn, dotver) /**/
+#define GFAPI_SYMVER_PUBLIC(fn1, fn2, dotver) /**/
+#define GFAPI_SYMVER_PRIVATE(fn1, fn2, dotver) /**/
+#endif
+
+#define ESTALE_RETRY(ret, errno, reval, loc, label) \
+ do { \
+ if (ret == -1 && errno == ESTALE) { \
+ if (reval < DEFAULT_REVAL_COUNT) { \
+ reval++; \
+ loc_wipe(loc); \
+ goto label; \
+ } \
+ } \
+ } while (0)
+
+#define GLFS_LOC_FILL_INODE(oinode, loc, label) \
+ do { \
+ loc.inode = inode_ref(oinode); \
+ gf_uuid_copy(loc.gfid, oinode->gfid); \
+ ret = glfs_loc_touchup(&loc); \
+ if (ret != 0) { \
+ errno = EINVAL; \
+ goto label; \
+ } \
+ } while (0)
+
+#define GLFS_LOC_FILL_PINODE(pinode, loc, ret, errno, label, path) \
+ do { \
+ loc.inode = inode_new(pinode->table); \
+ if (!loc.inode) { \
+ ret = -1; \
+ errno = ENOMEM; \
+ goto label; \
+ } \
+ loc.parent = inode_ref(pinode); \
+ loc.name = path; \
+ ret = glfs_loc_touchup(&loc); \
+ if (ret != 0) { \
+ errno = EINVAL; \
+ goto label; \
+ } \
+ } while (0)
+
+struct glfs;
+
+struct _upcall_entry {
+ struct list_head upcall_list;
+ struct gf_upcall upcall_data;
+};
+typedef struct _upcall_entry upcall_entry;
+
+typedef int (*glfs_init_cbk)(struct glfs *fs, int ret);
+
+struct glfs {
+ char *volname;
+ uuid_t vol_uuid;
+
+ glusterfs_ctx_t *ctx;
+
+ pthread_t poller;
+
+ glfs_init_cbk init_cbk;
+ pthread_mutex_t mutex;
+ pthread_cond_t cond;
+ pthread_cond_t child_down_cond; /* for broadcasting CHILD_DOWN */
+ int init;
+ int ret;
+ int err;
+
+ xlator_t *active_subvol; /* active graph */
+ xlator_t *mip_subvol; /* graph for which migration is in
+ * progress */
+ xlator_t *next_subvol; /* Any new graph is put to
+ * next_subvol, the graph in
+ * next_subvol can either be moved
+ * to mip_subvol (if any IO picks it
+ * up for migration), or be
+ * destroyed (if there is a new
+ * graph, and this was never picked
+ * for migration) */
+ xlator_t *old_subvol;
+
+ char *oldvolfile;
+ ssize_t oldvollen;
+
+ inode_t *cwd;
+
+ uint32_t dev_id; /* Used to fill st_dev in struct stat */
+
+ struct list_head openfds;
+
+ gf_boolean_t migration_in_progress;
+
+ gf_boolean_t cache_upcalls; /* add upcalls to the upcall_list? */
+ struct list_head upcall_list;
+ pthread_mutex_t upcall_list_mutex; /* mutex for upcall entry list */
+
+ uint32_t pin_refcnt;
+ uint32_t pthread_flags; /* GLFS_INIT_* # defines set this flag */
+
+ uint32_t upcall_events; /* Mask of upcall events application
+ * is interested in */
+ glfs_upcall_cbk up_cbk; /* upcall cbk function to be registered */
+ void *up_data; /* Opaque data provided by application
+ * during upcall registration */
+ struct list_head waitq; /* waiting synctasks */
+};
+
+/* This enum is used to maintain the state of glfd. In case of async fops
+ * fd might be closed before the actual fop is complete. Therefore we need
+ * to track whether the fd is closed or not, instead actually closing it.*/
+enum glfs_fd_state { GLFD_INIT, GLFD_OPEN, GLFD_CLOSE };
+
+struct glfs_fd {
+ struct list_head openfds;
+ struct list_head list;
+ GF_REF_DECL;
+ struct glfs *fs;
+ enum glfs_fd_state state;
+ off_t offset;
+ fd_t *fd; /* Currently guared by @fs->mutex. TODO: per-glfd lock */
+ struct list_head entries;
+ gf_dirent_t *next;
+ struct dirent *readdirbuf;
+ gf_lkowner_t lk_owner;
+ glfs_leaseid_t lease_id; /* Stores lease_id of client in glfd */
+ gf_lock_t lock; /* lock taken before updating fd state */
+ glfs_recall_cbk cbk;
+ void *cookie;
+};
+
+/* glfs object handle introduced for the alternate gfapi implementation based
+ on glfs handles/gfid/inode
+*/
+struct glfs_object {
+ inode_t *inode;
+ uuid_t gfid;
+};
+
+struct glfs_upcall {
+ struct glfs *fs; /* glfs object */
+ enum glfs_upcall_reason reason; /* Upcall event type */
+ void *event; /* changes based in the event type */
+ void (*free_event)(void *); /* free event after the usage */
+};
+
+struct glfs_upcall_inode {
+ struct glfs_object *object; /* Object which need to be acted upon */
+ int flags; /* Cache UPDATE/INVALIDATE flags */
+ struct stat buf; /* Latest stat of this entry */
+ unsigned int expire_time_attr; /* the amount of time for which
+ * the application need to cache
+ * this entry */
+ struct glfs_object *p_object; /* parent Object to be updated */
+ struct stat p_buf; /* Latest stat of parent dir handle */
+ struct glfs_object *oldp_object; /* Old parent Object to be updated */
+ struct stat oldp_buf; /* Latest stat of old parent dir handle */
+};
+
+struct glfs_upcall_lease {
+ struct glfs_object *object; /* Object which need to be acted upon */
+ uint32_t lease_type; /* Lease type to which client can downgrade to*/
+};
+
+struct glfs_upcall_lease_fd {
+ uint32_t lease_type; /* Lease type to which client can downgrade to*/
+ void *fd_cookie; /* Object which need to be acted upon */
+};
+
+struct glfs_xreaddirp_stat {
+ struct stat
+ st; /* Stat for that dirent - corresponds to GFAPI_XREADDIRP_STAT */
+ struct glfs_object *object; /* handled for GFAPI_XREADDIRP_HANDLE */
+ uint32_t flags_handled; /* final set of flags successfulyy handled */
+};
+
+#define DEFAULT_EVENT_POOL_SIZE 16384
+#define GF_MEMPOOL_COUNT_OF_DICT_T 4096
+#define GF_MEMPOOL_COUNT_OF_DATA_T (GF_MEMPOOL_COUNT_OF_DICT_T * 4)
+#define GF_MEMPOOL_COUNT_OF_DATA_PAIR_T (GF_MEMPOOL_COUNT_OF_DICT_T * 4)
+
+#define GF_MEMPOOL_COUNT_OF_LRU_BUF_T 256
+
+typedef void(glfs_mem_release_t)(void *ptr);
+
+struct glfs_mem_header {
+ uint32_t magic;
+ size_t nmemb;
+ size_t size;
+ glfs_mem_release_t *release;
+};
+
+#define GLFS_MEM_HEADER_SIZE (sizeof(struct glfs_mem_header))
+#define GLFS_MEM_HEADER_MAGIC 0x20170830
+
+static inline void *
+__glfs_calloc(size_t nmemb, size_t size, glfs_mem_release_t release,
+ uint32_t type, const char *typestr)
+{
+ struct glfs_mem_header *header = NULL;
+
+ header = __gf_calloc(nmemb, (size + GLFS_MEM_HEADER_SIZE), type, typestr);
+ if (!header)
+ return NULL;
+
+ header->magic = GLFS_MEM_HEADER_MAGIC;
+ header->nmemb = nmemb;
+ header->size = size;
+ header->release = release;
+
+ return header + 1;
+}
+
+static inline void *
+__glfs_malloc(size_t size, glfs_mem_release_t release, uint32_t type,
+ const char *typestr)
+{
+ struct glfs_mem_header *header = NULL;
+
+ header = __gf_malloc((size + GLFS_MEM_HEADER_SIZE), type, typestr);
+ if (!header)
+ return NULL;
+
+ header->magic = GLFS_MEM_HEADER_MAGIC;
+ header->nmemb = 1;
+ header->size = size;
+ header->release = release;
+
+ return header + 1;
+}
+
+static inline void *
+__glfs_realloc(void *ptr, size_t size)
+{
+ struct glfs_mem_header *old_header = NULL;
+ struct glfs_mem_header *new_header = NULL;
+ struct glfs_mem_header tmp_header;
+ void *new_ptr = NULL;
+
+ GF_ASSERT(NULL != ptr);
+
+ old_header = (struct glfs_mem_header *)(ptr - GLFS_MEM_HEADER_SIZE);
+ GF_ASSERT(old_header->magic == GLFS_MEM_HEADER_MAGIC);
+ tmp_header = *old_header;
+
+ new_ptr = __gf_realloc(old_header, (size + GLFS_MEM_HEADER_SIZE));
+ if (!new_ptr)
+ return NULL;
+
+ new_header = (struct glfs_mem_header *)new_ptr;
+ *new_header = tmp_header;
+ new_header->size = size;
+
+ return new_header + 1;
+}
+
+static inline void
+__glfs_free(void *free_ptr)
+{
+ struct glfs_mem_header *header = NULL;
+ void *release_ptr = NULL;
+ int i = 0;
+
+ if (!free_ptr)
+ return;
+
+ header = (struct glfs_mem_header *)(free_ptr - GLFS_MEM_HEADER_SIZE);
+ GF_ASSERT(header->magic == GLFS_MEM_HEADER_MAGIC);
+
+ if (header->release) {
+ release_ptr = free_ptr;
+ for (i = 0; i < header->nmemb; i++) {
+ header->release(release_ptr);
+ release_ptr += header->size;
+ }
+ }
+
+ __gf_free(header);
+}
+
+#define GLFS_CALLOC(nmemb, size, release, type) \
+ __glfs_calloc(nmemb, size, release, type, #type)
+
+#define GLFS_MALLOC(size, release, type) \
+ __glfs_malloc(size, release, type, #type)
+
+#define GLFS_REALLOC(ptr, size) __glfs_realloc(ptr, size)
+
+#define GLFS_FREE(free_ptr) __glfs_free(free_ptr)
+
+int
+glfs_mgmt_init(struct glfs *fs);
+void
+glfs_init_done(struct glfs *fs, int ret) GFAPI_PRIVATE(glfs_init_done, 3.4.0);
+int
+glfs_process_volfp(struct glfs *fs, FILE *fp);
+int
+glfs_resolve(struct glfs *fs, xlator_t *subvol, const char *path, loc_t *loc,
+ struct iatt *iatt, int reval) GFAPI_PRIVATE(glfs_resolve, 3.7.0);
+int
+glfs_lresolve(struct glfs *fs, xlator_t *subvol, const char *path, loc_t *loc,
+ struct iatt *iatt, int reval);
+fd_t *
+glfs_resolve_fd(struct glfs *fs, xlator_t *subvol, struct glfs_fd *glfd);
+
+fd_t *
+__glfs_migrate_fd(struct glfs *fs, xlator_t *subvol, struct glfs_fd *glfd);
+
+int
+glfs_first_lookup(xlator_t *subvol);
+
+void
+glfs_process_upcall_event(struct glfs *fs, void *data)
+ GFAPI_PRIVATE(glfs_process_upcall_event, 3.7.0);
+
+#define __GLFS_ENTRY_VALIDATE_FS(fs, label) \
+ do { \
+ if (!fs) { \
+ errno = EINVAL; \
+ goto label; \
+ } \
+ old_THIS = THIS; \
+ THIS = fs->ctx->master; \
+ } while (0)
+
+#define __GLFS_EXIT_FS \
+ do { \
+ THIS = old_THIS; \
+ } while (0)
+
+#define __GLFS_ENTRY_VALIDATE_FD(glfd, label) \
+ do { \
+ if (!glfd || !glfd->fd || !glfd->fd->inode || \
+ glfd->state != GLFD_OPEN) { \
+ errno = EBADF; \
+ goto label; \
+ } \
+ old_THIS = THIS; \
+ THIS = glfd->fd->inode->table->xl->ctx->master; \
+ } while (0)
+
+#define __GLFS_LOCK_WAIT(fs) \
+ do { \
+ struct synctask *task = NULL; \
+ \
+ task = synctask_get(); \
+ \
+ if (task) { \
+ list_add_tail(&task->waitq, &fs->waitq); \
+ pthread_mutex_unlock(&fs->mutex); \
+ synctask_yield(task, NULL); \
+ pthread_mutex_lock(&fs->mutex); \
+ } else { \
+ /* non-synctask */ \
+ pthread_cond_wait(&fs->cond, &fs->mutex); \
+ } \
+ } while (0)
+
+#define __GLFS_SYNCTASK_WAKE(fs) \
+ do { \
+ struct synctask *waittask = NULL; \
+ \
+ while (!list_empty(&fs->waitq)) { \
+ waittask = list_entry(fs->waitq.next, struct synctask, waitq); \
+ list_del_init(&waittask->waitq); \
+ synctask_wake(waittask); \
+ } \
+ } while (0)
+
+/*
+ By default all lock attempts from user context must
+ use glfs_lock() and glfs_unlock(). This allows
+ for a safe implementation of graph migration where
+ we can give up the mutex during syncop calls so
+ that bottom up calls (particularly CHILD_UP notify)
+ can do a mutex_lock() on @glfs without deadlocking
+ the filesystem.
+
+ All the fops should wait for graph migration to finish
+ before starting the fops. Therefore these functions should
+ call glfs_lock with wait_for_migration as true. But waiting
+ for migration to finish in call-back path can result thread
+ dead-locks. The reason for this is we only have finite
+ number of epoll threads. so if we wait on epoll threads
+ there will not be any thread left to handle outstanding
+ rpc replies.
+*/
+static inline int
+glfs_lock(struct glfs *fs, gf_boolean_t wait_for_migration)
+{
+ pthread_mutex_lock(&fs->mutex);
+
+ while (!fs->init)
+ __GLFS_LOCK_WAIT(fs);
+
+ while (wait_for_migration && fs->migration_in_progress)
+ __GLFS_LOCK_WAIT(fs);
+
+ return 0;
+}
+
+static inline void
+glfs_unlock(struct glfs *fs)
+{
+ pthread_mutex_unlock(&fs->mutex);
+}
+
+struct glfs_fd *
+glfs_fd_new(struct glfs *fs);
+void
+glfs_fd_bind(struct glfs_fd *glfd);
+void
+glfd_set_state_bind(struct glfs_fd *glfd);
+
+xlator_t *
+glfs_active_subvol(struct glfs *fs) GFAPI_PRIVATE(glfs_active_subvol, 3.4.0);
+xlator_t *
+__glfs_active_subvol(struct glfs *fs);
+void
+glfs_subvol_done(struct glfs *fs, xlator_t *subvol)
+ GFAPI_PRIVATE(glfs_subvol_done, 3.4.0);
+
+inode_t *
+glfs_refresh_inode(xlator_t *subvol, inode_t *inode);
+
+inode_t *
+glfs_cwd_get(struct glfs *fs);
+int
+glfs_cwd_set(struct glfs *fs, inode_t *inode);
+inode_t *
+glfs_resolve_inode(struct glfs *fs, xlator_t *subvol,
+ struct glfs_object *object);
+int
+glfs_create_object(loc_t *loc, struct glfs_object **retobject);
+int
+__glfs_cwd_set(struct glfs *fs, inode_t *inode);
+
+int
+glfs_resolve_base(struct glfs *fs, xlator_t *subvol, inode_t *inode,
+ struct iatt *iatt);
+
+int
+glfs_resolve_at(struct glfs *fs, xlator_t *subvol, inode_t *at,
+ const char *origpath, loc_t *loc, struct iatt *iatt, int follow,
+ int reval) GFAPI_PRIVATE(glfs_resolve_at, 3.4.0);
+int
+glfs_loc_touchup(loc_t *loc) GFAPI_PRIVATE(glfs_loc_touchup, 3.4.0);
+void
+glfs_iatt_to_stat(struct glfs *fs, struct iatt *iatt, struct stat *stat);
+void
+glfs_iatt_from_stat(struct stat *stat, int valid, struct iatt *iatt,
+ int *gvalid);
+int
+glfs_loc_link(loc_t *loc, struct iatt *iatt);
+int
+glfs_loc_unlink(loc_t *loc);
+int
+glfs_getxattr_process(void *value, size_t size, dict_t *xattr,
+ const char *name);
+
+/* Sends RPC call to glusterd to fetch required volume info */
+int
+glfs_get_volume_info(struct glfs *fs);
+
+/*
+ SYNOPSIS
+
+ glfs_new_from_ctx: Creates a virtual mount object by taking a
+ glusterfs_ctx_t object.
+
+ DESCRIPTION
+
+ glfs_new_from_ctx() is not same as glfs_new(). It takes the
+ glusterfs_ctx_t object instead of creating one by glusterfs_ctx_new().
+ Again the usage is restricted to NFS MOUNT over UDP i.e. in
+ glfs_resolve_at() which would take fs object as input but never use
+ (purpose is not to change the ABI of glfs_resolve_at()).
+
+ PARAMETERS
+
+ @ctx: glusterfs_ctx_t object
+
+ RETURN VALUES
+
+ fs : Pointer to the newly created glfs_t object.
+ NULL : Otherwise.
+*/
+
+struct glfs *
+glfs_new_from_ctx(glusterfs_ctx_t *ctx) GFAPI_PRIVATE(glfs_new_from_ctx, 3.7.0);
+
+/*
+ SYNOPSIS
+
+ glfs_free_from_ctx: Free up the memory occupied by glfs_t object
+ created by glfs_new_from_ctx().
+
+ DESCRIPTION
+
+ The glfs_t object allocated by glfs_new_from_ctx() must be released
+ by the caller using this routine. The usage can be found
+ at glfs_fini() or NFS, MOUNT over UDP i.e.
+ __mnt3udp_get_export_subdir_inode ()
+ => glfs_resolve_at().
+
+ PARAMETERS
+
+ @fs: The glfs_t object to be deallocated.
+
+ RETURN VALUES
+
+ void
+*/
+
+void
+glfs_free_from_ctx(struct glfs *fs) GFAPI_PRIVATE(glfs_free_from_ctx, 3.7.0);
+
+int
+glfs_recall_lease_fd(struct glfs *fs, struct gf_upcall *up_data);
+
+int
+glfs_get_upcall_cache_invalidation(struct gf_upcall *to_up_data,
+ struct gf_upcall *from_up_data);
+int
+glfs_h_poll_cache_invalidation(struct glfs *fs, struct glfs_upcall *up_arg,
+ struct gf_upcall *upcall_data);
+
+ssize_t
+glfs_anonymous_preadv(struct glfs *fs, struct glfs_object *object,
+ const struct iovec *iovec, int iovcnt, off_t offset,
+ int flags);
+ssize_t
+glfs_anonymous_pwritev(struct glfs *fs, struct glfs_object *object,
+ const struct iovec *iovec, int iovcnt, off_t offset,
+ int flags);
+
+struct glfs_object *
+glfs_h_resolve_symlink(struct glfs *fs, struct glfs_object *object);
+
+/* Deprecated structures that were passed to client applications, replaced by
+ * accessor functions. Do not use these in new applications, and update older
+ * usage.
+ *
+ * See http://review.gluster.org/14701 for more details.
+ *
+ * WARNING: These structures will be removed in the future.
+ */
+struct glfs_callback_arg {
+ struct glfs *fs;
+ enum glfs_upcall_reason reason;
+ void *event_arg;
+};
+
+struct glfs_callback_inode_arg {
+ struct glfs_object *object; /* Object which need to be acted upon */
+ int flags; /* Cache UPDATE/INVALIDATE flags */
+ struct stat buf; /* Latest stat of this entry */
+ unsigned int expire_time_attr; /* the amount of time for which
+ * the application need to cache
+ * this entry
+ */
+ struct glfs_object *p_object; /* parent Object to be updated */
+ struct stat p_buf; /* Latest stat of parent dir handle */
+ struct glfs_object *oldp_object; /* Old parent Object
+ * to be updated */
+ struct stat oldp_buf; /* Latest stat of old parent
+ * dir handle */
+};
+struct dirent *
+glfs_readdirbuf_get(struct glfs_fd *glfd);
+
+gf_dirent_t *
+glfd_entry_next(struct glfs_fd *glfd, int plus);
+
+void
+gf_dirent_to_dirent(gf_dirent_t *gf_dirent, struct dirent *dirent);
+
+void
+gf_lease_to_glfs_lease(struct gf_lease *gf_lease, struct glfs_lease *lease);
+
+void
+glfs_lease_to_gf_lease(struct glfs_lease *lease, struct gf_lease *gf_lease);
+
+void
+glfs_release_upcall(void *ptr);
+
+int
+get_fop_attr_glfd(dict_t **fop_attr, struct glfs_fd *glfd);
+
+int
+set_fop_attr_glfd(struct glfs_fd *glfd);
+
+int
+get_fop_attr_thrd_key(dict_t **fop_attr);
+
+void
+unset_fop_attr(dict_t **fop_attr);
+
+/*
+ SYNOPSIS
+ glfs_statx: Fetch extended file attributes for the given path.
+
+ DESCRIPTION
+ This function fetches extended file attributes for the given path.
+
+ PARAMETERS
+ @fs: The 'virtual mount' object referencing a volume, under which file exists.
+ @path: Path of the file within the virtual mount.
+ @mask: Requested extended file attributes mask, (See mask defines above)
+
+ RETURN VALUES
+ -1 : Failure. @errno will be set with the type of failure.
+ 0 : Filled in statxbuf with appropriate masks for valid items in the
+ structure.
+
+ ERRNO VALUES
+ EINVAL: fs is invalid
+ EINVAL: mask has unsupported bits set
+ Other errors as returned by stat(2)
+ */
+
+int
+glfs_statx(struct glfs *fs, const char *path, unsigned int mask,
+ struct glfs_stat *statxbuf) GFAPI_PRIVATE(glfs_statx, 6.0);
+
+void
+glfs_iatt_from_statx(struct iatt *, const struct glfs_stat *)
+ GFAPI_PRIVATE(glfs_iatt_from_statx, 6.0);
+
+/*
+ * This API is a per thread setting, similar to glfs_setfs{u/g}id, because of
+ * the call to syncopctx_setfspid.
+ */
+int
+glfs_setfspid(struct glfs *, pid_t) GFAPI_PRIVATE(glfs_setfspid, 6.1);
+#endif /* !_GLFS_INTERNAL_H */
diff --git a/api/src/glfs-master.c b/api/src/glfs-master.c
new file mode 100644
index 00000000000..100dcc16cc0
--- /dev/null
+++ b/api/src/glfs-master.c
@@ -0,0 +1,183 @@
+/*
+ Copyright (c) 2012-2016 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+#include <stdio.h>
+
+#include <glusterfs/glusterfs.h>
+
+#include "glfs-internal.h"
+#include "glfs-mem-types.h"
+#include "gfapi-messages.h"
+
+int
+graph_setup(struct glfs *fs, glusterfs_graph_t *graph)
+{
+ xlator_t *new_subvol = NULL;
+ xlator_t *old_subvol = NULL;
+ inode_table_t *itable = NULL;
+ int ret = -1;
+
+ new_subvol = graph->top;
+
+ /* This is called in a bottom-up context, it should specifically
+ NOT be glfs_lock()
+ */
+ pthread_mutex_lock(&fs->mutex);
+ {
+ if (new_subvol->switched || new_subvol == fs->active_subvol ||
+ new_subvol == fs->next_subvol || new_subvol == fs->mip_subvol) {
+ /* Spurious CHILD_UP event on old graph */
+ ret = 0;
+ goto unlock;
+ }
+
+ if (!new_subvol->itable) {
+ itable = inode_table_new(131072, new_subvol);
+ if (!itable) {
+ errno = ENOMEM;
+ ret = -1;
+ goto unlock;
+ }
+
+ new_subvol->itable = itable;
+ }
+
+ old_subvol = fs->next_subvol;
+ fs->next_subvol = new_subvol;
+ fs->next_subvol->winds++; /* first ref */
+ ret = 0;
+ }
+unlock:
+ pthread_mutex_unlock(&fs->mutex);
+
+ if (old_subvol)
+ /* wasn't picked up so far, skip */
+ glfs_subvol_done(fs, old_subvol);
+
+ return ret;
+}
+
+int
+notify(xlator_t *this, int event, void *data, ...)
+{
+ glusterfs_graph_t *graph = NULL;
+ struct glfs *fs = NULL;
+
+ graph = data;
+ fs = this->private;
+
+ switch (event) {
+ case GF_EVENT_GRAPH_NEW:
+ gf_smsg(this->name, GF_LOG_INFO, 0, API_MSG_NEW_GRAPH,
+ "graph-uuid=%s",
+ uuid_utoa((unsigned char *)graph->graph_uuid), "id=%d",
+ graph->id, NULL);
+ break;
+ case GF_EVENT_CHILD_UP:
+ pthread_mutex_lock(&fs->mutex);
+ {
+ graph->used = 1;
+ }
+ pthread_mutex_unlock(&fs->mutex);
+ graph_setup(fs, graph);
+ glfs_init_done(fs, 0);
+ break;
+ case GF_EVENT_CHILD_DOWN:
+ pthread_mutex_lock(&fs->mutex);
+ {
+ graph->used = 0;
+ pthread_cond_broadcast(&fs->child_down_cond);
+ }
+ pthread_mutex_unlock(&fs->mutex);
+ glfs_init_done(fs, 1);
+ break;
+ case GF_EVENT_CHILD_CONNECTING:
+ break;
+ case GF_EVENT_UPCALL:
+ glfs_process_upcall_event(fs, data);
+ break;
+ default:
+ gf_msg_debug(this->name, 0, "got notify event %d", event);
+ break;
+ }
+
+ return 0;
+}
+
+int
+mem_acct_init(xlator_t *this)
+{
+ int ret = -1;
+
+ if (!this)
+ return ret;
+
+ ret = xlator_mem_acct_init(this, glfs_mt_end + 1);
+ if (ret) {
+ gf_smsg(this->name, GF_LOG_ERROR, ENOMEM, API_MSG_MEM_ACCT_INIT_FAILED,
+ NULL);
+ return ret;
+ }
+
+ return 0;
+}
+
+int
+init(xlator_t *this)
+{
+ return 0;
+}
+
+void
+fini(xlator_t *this)
+{
+}
+
+/* place-holder fops */
+int
+glfs_forget(xlator_t *this, inode_t *inode)
+{
+ return 0;
+}
+
+int
+glfs_release(xlator_t *this, fd_t *fd)
+{
+ return 0;
+}
+
+int
+glfs_releasedir(xlator_t *this, fd_t *fd)
+{
+ return 0;
+}
+
+struct xlator_dumpops dumpops;
+
+struct xlator_fops fops;
+
+struct xlator_cbks cbks = {
+ .forget = glfs_forget,
+ .release = glfs_release,
+ .releasedir = glfs_releasedir,
+};
+
+xlator_api_t xlator_api = {
+ .init = init,
+ .fini = fini,
+ .notify = notify,
+ .mem_acct_init = mem_acct_init,
+ .op_version = {1},
+ .dumpops = &dumpops,
+ .fops = &fops,
+ .cbks = &cbks,
+ .identifier = "glfs-api",
+ .category = GF_MAINTAINED,
+};
diff --git a/api/src/glfs-mem-types.h b/api/src/glfs-mem-types.h
new file mode 100644
index 00000000000..bfa325a3ad9
--- /dev/null
+++ b/api/src/glfs-mem-types.h
@@ -0,0 +1,35 @@
+/*
+ Copyright (c) 2012-2017 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+#ifndef _GLFS_MEM_TYPES_H
+#define _GLFS_MEM_TYPES_H
+
+#include <glusterfs/mem-types.h>
+
+#define GF_MEM_TYPE_START (gf_common_mt_end + 1)
+
+enum glfs_mem_types_ {
+ glfs_mt_call_pool_t = GF_MEM_TYPE_START,
+ glfs_mt_xlator_t,
+ glfs_mt_glfs_fd_t,
+ glfs_mt_glfs_io_t,
+ glfs_mt_volfile_t,
+ glfs_mt_xlator_cmdline_option_t,
+ glfs_mt_server_cmdline_t,
+ glfs_mt_glfs_object_t,
+ glfs_mt_readdirbuf_t,
+ glfs_mt_upcall_entry_t,
+ glfs_mt_acl_t,
+ glfs_mt_upcall_inode_t,
+ glfs_mt_realpath_t,
+ glfs_mt_xreaddirp_stat_t,
+ glfs_mt_end
+};
+#endif
diff --git a/api/src/glfs-mgmt.c b/api/src/glfs-mgmt.c
new file mode 100644
index 00000000000..7c82b8cd162
--- /dev/null
+++ b/api/src/glfs-mgmt.c
@@ -0,0 +1,1049 @@
+/*
+ Copyright (c) 2012-2018 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+#include <stdio.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <stdlib.h>
+#include <signal.h>
+#include <pthread.h>
+
+#include <glusterfs/glusterfs.h>
+#include "glfs.h"
+#include <glusterfs/dict.h>
+
+#include "rpc-clnt.h"
+#include "protocol-common.h"
+#include "xdr-generic.h"
+#include "rpc-common-xdr.h"
+
+#include <glusterfs/syncop.h>
+
+#include "glfs-internal.h"
+#include "gfapi-messages.h"
+#include <glusterfs/syscall.h>
+
+int
+glfs_volfile_fetch(struct glfs *fs);
+int32_t
+glfs_get_volume_info_rpc(call_frame_t *frame, xlator_t *this, struct glfs *fs);
+
+int
+glfs_process_volfp(struct glfs *fs, FILE *fp)
+{
+ glusterfs_graph_t *graph = NULL;
+ int ret = -1;
+ xlator_t *trav = NULL;
+ glusterfs_ctx_t *ctx = NULL;
+
+ ctx = fs->ctx;
+ graph = glusterfs_graph_construct(fp);
+ if (!graph) {
+ gf_smsg("glfs", GF_LOG_ERROR, errno, API_MSG_GRAPH_CONSTRUCT_FAILED,
+ NULL);
+ goto out;
+ }
+
+ for (trav = graph->first; trav; trav = trav->next) {
+ if (strcmp(trav->type, "mount/api") == 0) {
+ gf_smsg("glfs", GF_LOG_ERROR, EINVAL, API_MSG_API_XLATOR_ERROR,
+ NULL);
+ goto out;
+ }
+ }
+
+ ret = glusterfs_graph_prepare(graph, ctx, fs->volname);
+ if (ret) {
+ glusterfs_graph_destroy(graph);
+ goto out;
+ }
+
+ ret = glusterfs_graph_activate(graph, ctx);
+
+ if (ret) {
+ glusterfs_graph_destroy(graph);
+ goto out;
+ }
+
+ gf_log_dump_graph(fp, graph);
+
+ ret = 0;
+out:
+ if (fp)
+ fclose(fp);
+
+ if (!ctx->active) {
+ ret = -1;
+ }
+
+ return ret;
+}
+
+int
+mgmt_cbk_spec(struct rpc_clnt *rpc, void *mydata, void *data)
+{
+ struct glfs *fs = NULL;
+ xlator_t *this = NULL;
+
+ this = mydata;
+ fs = this->private;
+
+ glfs_volfile_fetch(fs);
+
+ return 0;
+}
+
+int
+mgmt_cbk_event(struct rpc_clnt *rpc, void *mydata, void *data)
+{
+ return 0;
+}
+
+static int
+mgmt_cbk_statedump(struct rpc_clnt *rpc, void *mydata, void *data)
+{
+ struct glfs *fs = NULL;
+ xlator_t *this = NULL;
+ gf_statedump target_pid = {
+ 0,
+ };
+ struct iovec *iov = NULL;
+ int ret = -1;
+
+ this = mydata;
+ if (!this) {
+ gf_smsg("glfs", GF_LOG_ERROR, EINVAL, API_MSG_NULL, "mydata", NULL);
+ errno = EINVAL;
+ goto out;
+ }
+
+ fs = this->private;
+ if (!fs) {
+ gf_smsg("glfs", GF_LOG_ERROR, EINVAL, API_MSG_NULL, "glfs", NULL);
+ errno = EINVAL;
+ goto out;
+ }
+
+ iov = (struct iovec *)data;
+ if (!iov) {
+ gf_smsg("glfs", GF_LOG_ERROR, EINVAL, API_MSG_NULL, "iovec data", NULL);
+ errno = EINVAL;
+ goto out;
+ }
+
+ ret = xdr_to_generic(*iov, &target_pid, (xdrproc_t)xdr_gf_statedump);
+ if (ret < 0) {
+ gf_smsg("glfs", GF_LOG_ERROR, EINVAL, API_MSG_DECODE_XDR_FAILED, NULL);
+ goto out;
+ }
+
+ gf_msg_trace("glfs", 0, "statedump requested for pid: %d", target_pid.pid);
+
+ if ((uint64_t)getpid() == target_pid.pid) {
+ gf_msg_debug("glfs", 0, "Taking statedump for pid: %d", target_pid.pid);
+
+ ret = glfs_sysrq(fs, GLFS_SYSRQ_STATEDUMP);
+ if (ret < 0) {
+ gf_smsg("glfs", GF_LOG_INFO, 0, API_MSG_STATEDUMP_FAILED, NULL);
+ }
+ }
+out:
+ return ret;
+}
+
+static rpcclnt_cb_actor_t mgmt_cbk_actors[GF_CBK_MAXVALUE] = {
+ [GF_CBK_FETCHSPEC] = {"FETCHSPEC", mgmt_cbk_spec, GF_CBK_FETCHSPEC},
+ [GF_CBK_EVENT_NOTIFY] = {"EVENTNOTIFY", mgmt_cbk_event,
+ GF_CBK_EVENT_NOTIFY},
+ [GF_CBK_STATEDUMP] = {"STATEDUMP", mgmt_cbk_statedump, GF_CBK_STATEDUMP},
+};
+
+static struct rpcclnt_cb_program mgmt_cbk_prog = {
+ .progname = "GlusterFS Callback",
+ .prognum = GLUSTER_CBK_PROGRAM,
+ .progver = GLUSTER_CBK_VERSION,
+ .actors = mgmt_cbk_actors,
+ .numactors = GF_CBK_MAXVALUE,
+};
+
+static char *clnt_handshake_procs[GF_HNDSK_MAXVALUE] = {
+ [GF_HNDSK_NULL] = "NULL",
+ [GF_HNDSK_SETVOLUME] = "SETVOLUME",
+ [GF_HNDSK_GETSPEC] = "GETSPEC",
+ [GF_HNDSK_PING] = "PING",
+ [GF_HNDSK_EVENT_NOTIFY] = "EVENTNOTIFY",
+ [GF_HNDSK_GET_VOLUME_INFO] = "GETVOLUMEINFO",
+};
+
+static rpc_clnt_prog_t clnt_handshake_prog = {
+ .progname = "GlusterFS Handshake",
+ .prognum = GLUSTER_HNDSK_PROGRAM,
+ .progver = GLUSTER_HNDSK_VERSION,
+ .procnames = clnt_handshake_procs,
+};
+
+int
+mgmt_submit_request(void *req, call_frame_t *frame, glusterfs_ctx_t *ctx,
+ rpc_clnt_prog_t *prog, int procnum, fop_cbk_fn_t cbkfn,
+ xdrproc_t xdrproc)
+{
+ int ret = -1;
+ int count = 0;
+ struct iovec iov = {
+ 0,
+ };
+ struct iobuf *iobuf = NULL;
+ struct iobref *iobref = NULL;
+ ssize_t xdr_size = 0;
+
+ iobref = iobref_new();
+ if (!iobref) {
+ goto out;
+ }
+
+ if (req) {
+ xdr_size = xdr_sizeof(xdrproc, req);
+
+ iobuf = iobuf_get2(ctx->iobuf_pool, xdr_size);
+ if (!iobuf) {
+ goto out;
+ };
+
+ iobref_add(iobref, iobuf);
+
+ iov.iov_base = iobuf->ptr;
+ iov.iov_len = iobuf_pagesize(iobuf);
+
+ /* Create the xdr payload */
+ ret = xdr_serialize_generic(iov, req, xdrproc);
+ if (ret == -1) {
+ gf_smsg(THIS->name, GF_LOG_WARNING, 0, API_MSG_XDR_PAYLOAD_FAILED,
+ NULL);
+ goto out;
+ }
+ iov.iov_len = ret;
+ count = 1;
+ }
+
+ /* Send the msg */
+ ret = rpc_clnt_submit(ctx->mgmt, prog, procnum, cbkfn, &iov, count, NULL, 0,
+ iobref, frame, NULL, 0, NULL, 0, NULL);
+
+out:
+ if (iobref)
+ iobref_unref(iobref);
+
+ if (iobuf)
+ iobuf_unref(iobuf);
+ return ret;
+}
+
+/*
+ * Callback routine for 'GF_HNDSK_GET_VOLUME_INFO' rpc request
+ */
+int
+mgmt_get_volinfo_cbk(struct rpc_req *req, struct iovec *iov, int count,
+ void *myframe)
+{
+ int ret = 0;
+ char *volume_id_str = NULL;
+ dict_t *dict = NULL;
+ gf_get_volume_info_rsp rsp = {
+ 0,
+ };
+ call_frame_t *frame = NULL;
+ glusterfs_ctx_t *ctx = NULL;
+ struct glfs *fs = NULL;
+ struct syncargs *args;
+
+ frame = myframe;
+ ctx = frame->this->ctx;
+ args = frame->local;
+
+ if (!ctx) {
+ gf_smsg(frame->this->name, GF_LOG_ERROR, EINVAL, API_MSG_NULL,
+ "context", NULL);
+ errno = EINVAL;
+ ret = -1;
+ goto out;
+ }
+
+ fs = ((xlator_t *)ctx->master)->private;
+
+ if (-1 == req->rpc_status) {
+ gf_smsg(frame->this->name, GF_LOG_ERROR, EINVAL,
+ API_MSG_CALL_NOT_SUCCESSFUL, NULL);
+ errno = EINVAL;
+ ret = -1;
+ goto out;
+ }
+
+ ret = xdr_to_generic(*iov, &rsp, (xdrproc_t)xdr_gf_get_volume_info_rsp);
+
+ if (ret < 0) {
+ gf_smsg(frame->this->name, GF_LOG_ERROR, 0,
+ API_MSG_XDR_RESPONSE_DECODE_FAILED, NULL);
+ goto out;
+ }
+
+ gf_msg_debug(frame->this->name, 0,
+ "Received resp to GET_VOLUME_INFO "
+ "RPC: %d",
+ rsp.op_ret);
+
+ if (rsp.op_ret == -1) {
+ errno = rsp.op_errno;
+ ret = -1;
+ goto out;
+ }
+
+ if (!rsp.dict.dict_len) {
+ gf_smsg(frame->this->name, GF_LOG_ERROR, EINVAL, API_MSG_CALL_NOT_VALID,
+ NULL);
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ dict = dict_new();
+
+ if (!dict) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ ret = dict_unserialize(rsp.dict.dict_val, rsp.dict.dict_len, &dict);
+
+ if (ret) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ ret = dict_get_str_sizen(dict, "volume_id", &volume_id_str);
+ if (ret) {
+ errno = EINVAL;
+ goto out;
+ }
+
+ ret = 0;
+out:
+ if (volume_id_str) {
+ gf_msg_debug(frame->this->name, 0, "Volume Id: %s", volume_id_str);
+ pthread_mutex_lock(&fs->mutex);
+ gf_uuid_parse(volume_id_str, fs->vol_uuid);
+ pthread_mutex_unlock(&fs->mutex);
+ }
+
+ if (ret) {
+ gf_smsg(frame->this->name, GF_LOG_ERROR, errno,
+ API_MSG_GET_VOLINFO_CBK_FAILED, "error=%s", strerror(errno),
+ NULL);
+ }
+
+ if (dict)
+ dict_unref(dict);
+
+ if (rsp.dict.dict_val)
+ free(rsp.dict.dict_val);
+
+ if (rsp.op_errstr)
+ free(rsp.op_errstr);
+
+ gf_msg_debug(frame->this->name, 0, "Returning: %d", ret);
+
+ __wake(args);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_get_volumeid, 3.5.0)
+int
+pub_glfs_get_volumeid(struct glfs *fs, char *volid, size_t size)
+{
+ /* TODO: Define a global macro to store UUID size */
+ size_t uuid_size = 16;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ pthread_mutex_lock(&fs->mutex);
+ {
+ /* check if the volume uuid is initialized */
+ if (!gf_uuid_is_null(fs->vol_uuid)) {
+ pthread_mutex_unlock(&fs->mutex);
+ goto done;
+ }
+ }
+ pthread_mutex_unlock(&fs->mutex);
+
+ /* Need to fetch volume_uuid */
+ glfs_get_volume_info(fs);
+
+ if (gf_uuid_is_null(fs->vol_uuid)) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, EINVAL, API_MSG_FETCH_VOLUUID_FAILED,
+ NULL);
+ goto out;
+ }
+
+done:
+ if (!volid || !size) {
+ gf_msg_debug(THIS->name, 0, "volumeid/size is null");
+ __GLFS_EXIT_FS;
+ return uuid_size;
+ }
+
+ if (size < uuid_size) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, ERANGE, API_MSG_INSUFF_SIZE, NULL);
+ errno = ERANGE;
+ goto out;
+ }
+
+ memcpy(volid, fs->vol_uuid, uuid_size);
+
+ __GLFS_EXIT_FS;
+
+ return uuid_size;
+
+out:
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return -1;
+}
+
+int
+glfs_get_volume_info(struct glfs *fs)
+{
+ call_frame_t *frame = NULL;
+ glusterfs_ctx_t *ctx = NULL;
+ struct syncargs args = {
+ 0,
+ };
+ int ret = 0;
+
+ ctx = fs->ctx;
+ frame = create_frame(THIS, ctx->pool);
+ if (!frame) {
+ gf_smsg("glfs", GF_LOG_ERROR, ENOMEM, API_MSG_FRAME_CREAT_FAILED, NULL);
+ ret = -1;
+ goto out;
+ }
+
+ frame->local = &args;
+
+ __yawn((&args));
+
+ ret = glfs_get_volume_info_rpc(frame, THIS, fs);
+ if (ret)
+ goto out;
+
+ __yield((&args));
+
+ frame->local = NULL;
+ STACK_DESTROY(frame->root);
+
+out:
+ return ret;
+}
+
+int32_t
+glfs_get_volume_info_rpc(call_frame_t *frame, xlator_t *this, struct glfs *fs)
+{
+ gf_get_volume_info_req req = {{
+ 0,
+ }};
+ int ret = 0;
+ glusterfs_ctx_t *ctx = NULL;
+ dict_t *dict = NULL;
+ int32_t flags = 0;
+
+ if (!frame || !this || !fs) {
+ ret = -1;
+ goto out;
+ }
+
+ ctx = fs->ctx;
+
+ dict = dict_new();
+ if (!dict) {
+ ret = -1;
+ goto out;
+ }
+
+ if (fs->volname) {
+ ret = dict_set_str(dict, "volname", fs->volname);
+ if (ret)
+ goto out;
+ }
+
+ // Set the flags for the fields which we are interested in
+ flags = (int32_t)GF_GET_VOLUME_UUID; // ctx->flags;
+ ret = dict_set_int32(dict, "flags", flags);
+ if (ret) {
+ gf_smsg(frame->this->name, GF_LOG_ERROR, EINVAL,
+ API_MSG_DICT_SET_FAILED, "flags", NULL);
+ goto out;
+ }
+
+ ret = dict_allocate_and_serialize(dict, &req.dict.dict_val,
+ &req.dict.dict_len);
+
+ ret = mgmt_submit_request(&req, frame, ctx, &clnt_handshake_prog,
+ GF_HNDSK_GET_VOLUME_INFO, mgmt_get_volinfo_cbk,
+ (xdrproc_t)xdr_gf_get_volume_info_req);
+out:
+ if (dict) {
+ dict_unref(dict);
+ }
+
+ GF_FREE(req.dict.dict_val);
+
+ return ret;
+}
+
+static int
+glusterfs_oldvolfile_update(struct glfs *fs, char *volfile, ssize_t size)
+{
+ int ret = -1;
+
+ pthread_mutex_lock(&fs->mutex);
+
+ fs->oldvollen = size;
+ if (!fs->oldvolfile) {
+ fs->oldvolfile = CALLOC(1, size + 1);
+ } else {
+ fs->oldvolfile = REALLOC(fs->oldvolfile, size + 1);
+ }
+
+ if (!fs->oldvolfile) {
+ fs->oldvollen = 0;
+ } else {
+ memcpy(fs->oldvolfile, volfile, size);
+ fs->oldvollen = size;
+ ret = 0;
+ }
+
+ pthread_mutex_unlock(&fs->mutex);
+
+ return ret;
+}
+
+int
+glfs_mgmt_getspec_cbk(struct rpc_req *req, struct iovec *iov, int count,
+ void *myframe)
+{
+ gf_getspec_rsp rsp = {
+ 0,
+ };
+ call_frame_t *frame = NULL;
+ glusterfs_ctx_t *ctx = NULL;
+ int ret = 0;
+ ssize_t size = 0;
+ FILE *tmpfp = NULL;
+ int need_retry = 0;
+ struct glfs *fs = NULL;
+ dict_t *dict = NULL;
+ char *servers_list = NULL;
+ int tmp_fd = -1;
+ char template[] = "/tmp/gfapi.volfile.XXXXXX";
+
+ frame = myframe;
+ ctx = frame->this->ctx;
+
+ if (!ctx) {
+ gf_smsg(frame->this->name, GF_LOG_ERROR, EINVAL, API_MSG_NULL,
+ "context", NULL);
+ errno = EINVAL;
+ ret = -1;
+ goto out;
+ }
+
+ fs = ((xlator_t *)ctx->master)->private;
+
+ if (-1 == req->rpc_status) {
+ ret = -1;
+ need_retry = 1;
+ goto out;
+ }
+
+ ret = xdr_to_generic(*iov, &rsp, (xdrproc_t)xdr_gf_getspec_rsp);
+ if (ret < 0) {
+ gf_smsg(frame->this->name, GF_LOG_ERROR, 0, API_MSG_XDR_DECODE_FAILED,
+ NULL);
+ ret = -1;
+ goto out;
+ }
+
+ if (-1 == rsp.op_ret) {
+ gf_smsg(frame->this->name, GF_LOG_ERROR, rsp.op_errno,
+ API_MSG_GET_VOLFILE_FAILED, "from server", NULL);
+ ret = -1;
+ errno = rsp.op_errno;
+ goto out;
+ }
+
+ if (!rsp.xdata.xdata_len) {
+ goto volfile;
+ }
+
+ dict = dict_new();
+ if (!dict) {
+ ret = -1;
+ errno = ENOMEM;
+ goto out;
+ }
+
+ ret = dict_unserialize(rsp.xdata.xdata_val, rsp.xdata.xdata_len, &dict);
+ if (ret) {
+ gf_log(frame->this->name, GF_LOG_ERROR,
+ "failed to unserialize xdata to dictionary");
+ goto out;
+ }
+ dict->extra_stdfree = rsp.xdata.xdata_val;
+
+ /* glusterd2 only */
+ ret = dict_get_str(dict, "servers-list", &servers_list);
+ if (ret) {
+ goto volfile;
+ }
+
+ gf_log(frame->this->name, GF_LOG_INFO,
+ "Received list of available volfile servers: %s", servers_list);
+
+ ret = gf_process_getspec_servers_list(&ctx->cmd_args, servers_list);
+ if (ret) {
+ gf_log(frame->this->name, GF_LOG_ERROR,
+ "Failed (%s) to process servers list: %s", strerror(errno),
+ servers_list);
+ }
+
+volfile:
+ ret = 0;
+ size = rsp.op_ret;
+
+ pthread_mutex_lock(&fs->mutex);
+ if ((size == fs->oldvollen) &&
+ (memcmp(fs->oldvolfile, rsp.spec, size) == 0)) {
+ pthread_mutex_unlock(&fs->mutex);
+ gf_smsg(frame->this->name, GF_LOG_INFO, 0, API_MSG_VOLFILE_INFO, NULL);
+ goto out;
+ }
+ pthread_mutex_unlock(&fs->mutex);
+
+ /* coverity[secure_temp] mkstemp uses 0600 as the mode and is safe */
+ tmp_fd = mkstemp(template);
+ if (-1 == tmp_fd) {
+ ret = -1;
+ goto out;
+ }
+
+ /* Calling unlink so that when the file is closed or program
+ * terminates the temporary file is deleted.
+ */
+ ret = sys_unlink(template);
+ if (ret < 0) {
+ gf_smsg(frame->this->name, GF_LOG_INFO, 0, API_MSG_UNABLE_TO_DEL,
+ "template=%s", template, NULL);
+ ret = 0;
+ }
+
+ tmpfp = fdopen(tmp_fd, "w+b");
+ if (!tmpfp) {
+ ret = -1;
+ goto out;
+ }
+
+ fwrite(rsp.spec, size, 1, tmpfp);
+ fflush(tmpfp);
+ if (ferror(tmpfp)) {
+ ret = -1;
+ goto out;
+ }
+
+ /* Check if only options have changed. No need to reload the
+ * volfile if topology hasn't changed.
+ * glusterfs_volfile_reconfigure returns 3 possible return states
+ * return 0 =======> reconfiguration of options has succeeded
+ * return 1 =======> the graph has to be reconstructed and all
+ * the xlators should be inited return -1(or -ve) =======> Some Internal
+ * Error occurred during the operation
+ */
+
+ pthread_mutex_lock(&fs->mutex);
+ ret = gf_volfile_reconfigure(fs->oldvollen, tmpfp, fs->ctx, fs->oldvolfile);
+ pthread_mutex_unlock(&fs->mutex);
+
+ if (ret == 0) {
+ gf_msg_debug("glusterfsd-mgmt", 0,
+ "No need to re-load "
+ "volfile, reconfigure done");
+ ret = glusterfs_oldvolfile_update(fs, rsp.spec, size);
+ goto out;
+ }
+
+ if (ret < 0) {
+ gf_msg_debug("glusterfsd-mgmt", 0, "Reconfigure failed !!");
+ goto out;
+ }
+
+ ret = glfs_process_volfp(fs, tmpfp);
+ /* tmpfp closed */
+ tmpfp = NULL;
+ tmp_fd = -1;
+ if (ret)
+ goto out;
+
+ ret = glusterfs_oldvolfile_update(fs, rsp.spec, size);
+out:
+ STACK_DESTROY(frame->root);
+
+ if (rsp.spec)
+ free(rsp.spec);
+
+ if (dict)
+ dict_unref(dict);
+
+ // Stop if server is running at an unsupported op-version
+ if (ENOTSUP == ret) {
+ gf_smsg("mgmt", GF_LOG_ERROR, ENOTSUP, API_MSG_WRONG_OPVERSION, NULL);
+ errno = ENOTSUP;
+ glfs_init_done(fs, -1);
+ }
+
+ if (ret && ctx && !ctx->active) {
+ /* Do it only for the first time */
+ /* Failed to get the volume file, something wrong,
+ restart the process */
+ gf_smsg("glfs-mgmt", GF_LOG_ERROR, EINVAL, API_MSG_GET_VOLFILE_FAILED,
+ "key=%s", ctx->cmd_args.volfile_id, NULL);
+ if (!need_retry) {
+ if (!errno)
+ errno = EINVAL;
+ glfs_init_done(fs, -1);
+ }
+ }
+
+ if (tmpfp)
+ fclose(tmpfp);
+ else if (tmp_fd != -1)
+ sys_close(tmp_fd);
+
+ return 0;
+}
+
+int
+glfs_volfile_fetch(struct glfs *fs)
+{
+ cmd_args_t *cmd_args = NULL;
+ gf_getspec_req req = {
+ 0,
+ };
+ int ret = -1;
+ call_frame_t *frame = NULL;
+ glusterfs_ctx_t *ctx = NULL;
+ dict_t *dict = NULL;
+
+ ctx = fs->ctx;
+ cmd_args = &ctx->cmd_args;
+
+ req.key = cmd_args->volfile_id;
+ req.flags = 0;
+
+ dict = dict_new();
+ if (!dict) {
+ goto out;
+ }
+
+ // Set the supported min and max op-versions, so glusterd can make a
+ // decision
+ ret = dict_set_int32(dict, "min-op-version", GD_OP_VERSION_MIN);
+ if (ret) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, EINVAL, API_MSG_DICT_SET_FAILED,
+ "min-op-version", NULL);
+ goto out;
+ }
+
+ ret = dict_set_int32(dict, "max-op-version", GD_OP_VERSION_MAX);
+ if (ret) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, EINVAL, API_MSG_DICT_SET_FAILED,
+ "max-op-version", NULL);
+ goto out;
+ }
+
+ /* Ask for a list of volfile (glusterd2 only) servers */
+ if (GF_CLIENT_PROCESS == ctx->process_mode) {
+ req.flags = req.flags | GF_GETSPEC_FLAG_SERVERS_LIST;
+ }
+
+ ret = dict_allocate_and_serialize(dict, &req.xdata.xdata_val,
+ &req.xdata.xdata_len);
+ if (ret < 0) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, 0, API_MSG_DICT_SERIALIZE_FAILED,
+ NULL);
+ goto out;
+ }
+
+ frame = create_frame(THIS, ctx->pool);
+ if (!frame) {
+ ret = -1;
+ goto out;
+ }
+
+ ret = mgmt_submit_request(&req, frame, ctx, &clnt_handshake_prog,
+ GF_HNDSK_GETSPEC, glfs_mgmt_getspec_cbk,
+ (xdrproc_t)xdr_gf_getspec_req);
+out:
+ if (req.xdata.xdata_val)
+ GF_FREE(req.xdata.xdata_val);
+ if (dict)
+ dict_unref(dict);
+
+ return ret;
+}
+
+static int
+mgmt_rpc_notify(struct rpc_clnt *rpc, void *mydata, rpc_clnt_event_t event,
+ void *data)
+{
+ xlator_t *this = NULL;
+ glusterfs_ctx_t *ctx = NULL;
+ server_cmdline_t *server = NULL;
+ rpc_transport_t *rpc_trans = NULL;
+ struct glfs *fs = NULL;
+ int ret = 0;
+ struct dnscache6 *dnscache = NULL;
+
+ this = mydata;
+ rpc_trans = rpc->conn.trans;
+
+ ctx = this->ctx;
+ if (!ctx)
+ goto out;
+
+ fs = ((xlator_t *)ctx->master)->private;
+
+ switch (event) {
+ case RPC_CLNT_DISCONNECT:
+ if (!ctx->active) {
+ if (rpc_trans->connect_failed)
+ gf_smsg("glfs-mgmt", GF_LOG_ERROR, 0,
+ API_MSG_REMOTE_HOST_CONN_FAILED, "server=%s",
+ ctx->cmd_args.volfile_server, NULL);
+ else
+ gf_smsg("glfs-mgmt", GF_LOG_INFO, 0,
+ API_MSG_REMOTE_HOST_CONN_FAILED, "server=%s",
+ ctx->cmd_args.volfile_server, NULL);
+
+ if (!rpc->disabled) {
+ /*
+ * Check if dnscache is exhausted for current server
+ * and continue until cache is exhausted
+ */
+ dnscache = rpc_trans->dnscache;
+ if (dnscache && dnscache->next) {
+ break;
+ }
+ }
+ server = ctx->cmd_args.curr_server;
+ if (server->list.next == &ctx->cmd_args.volfile_servers) {
+ errno = ENOTCONN;
+ gf_smsg("glfs-mgmt", GF_LOG_INFO, ENOTCONN,
+ API_MSG_VOLFILE_SERVER_EXHAUST, NULL);
+ glfs_init_done(fs, -1);
+ break;
+ }
+ server = list_entry(server->list.next, typeof(*server), list);
+ ctx->cmd_args.curr_server = server;
+ ctx->cmd_args.volfile_server_port = server->port;
+ ctx->cmd_args.volfile_server = server->volfile_server;
+ ctx->cmd_args.volfile_server_transport = server->transport;
+
+ ret = dict_set_str(rpc_trans->options, "transport-type",
+ server->transport);
+ if (ret != 0) {
+ gf_smsg("glfs-mgmt", GF_LOG_ERROR, ENOTCONN,
+ API_MSG_DICT_SET_FAILED, "transport-type=%s",
+ server->transport, NULL);
+ errno = ENOTCONN;
+ glfs_init_done(fs, -1);
+ break;
+ }
+
+ if (strcmp(server->transport, "unix") == 0) {
+ ret = dict_set_str(rpc_trans->options,
+ "transport.socket.connect-path",
+ server->volfile_server);
+ if (ret != 0) {
+ gf_smsg("glfs-mgmt", GF_LOG_ERROR, ENOTCONN,
+ API_MSG_DICT_SET_FAILED,
+ "socket.connect-path=%s",
+ server->volfile_server, NULL);
+ errno = ENOTCONN;
+ glfs_init_done(fs, -1);
+ break;
+ }
+ /* delete the remote-host and remote-port keys
+ * in case they were set while looping through
+ * list of volfile servers previously
+ */
+ dict_del(rpc_trans->options, "remote-host");
+ dict_del(rpc_trans->options, "remote-port");
+ } else {
+ ret = dict_set_int32(rpc_trans->options, "remote-port",
+ server->port);
+ if (ret != 0) {
+ gf_smsg("glfs-mgmt", GF_LOG_ERROR, ENOTCONN,
+ API_MSG_DICT_SET_FAILED, "remote-port=%d",
+ server->port, NULL);
+ errno = ENOTCONN;
+ glfs_init_done(fs, -1);
+ break;
+ }
+
+ ret = dict_set_str(rpc_trans->options, "remote-host",
+ server->volfile_server);
+ if (ret != 0) {
+ gf_smsg("glfs-mgmt", GF_LOG_ERROR, ENOTCONN,
+ API_MSG_DICT_SET_FAILED, "remote-host=%s",
+ server->volfile_server, NULL);
+ errno = ENOTCONN;
+ glfs_init_done(fs, -1);
+ break;
+ }
+ /* delete the "transport.socket.connect-path"
+ * key in case if it was set while looping
+ * through list of volfile servers previously
+ */
+ dict_del(rpc_trans->options,
+ "transport.socket.connect-path");
+ }
+
+ gf_smsg("glfs-mgmt", GF_LOG_INFO, 0, API_MSG_VOLFILE_CONNECTING,
+ "server=%s", server->volfile_server, "port=%d",
+ server->port, "transport=%s", server->transport, NULL);
+ }
+ break;
+ case RPC_CLNT_CONNECT:
+ ret = glfs_volfile_fetch(fs);
+ if (ret && (ctx->active == NULL)) {
+ /* Do it only for the first time */
+ /* Exit the process.. there are some wrong options */
+ gf_smsg("glfs-mgmt", GF_LOG_ERROR, EINVAL,
+ API_MSG_GET_VOLFILE_FAILED, "key=%s",
+ ctx->cmd_args.volfile_id, NULL);
+ errno = EINVAL;
+ glfs_init_done(fs, -1);
+ }
+
+ break;
+ default:
+ break;
+ }
+out:
+ return 0;
+}
+
+int
+glusterfs_mgmt_notify(int32_t op, void *data, ...)
+{
+ int ret = 0;
+
+ switch (op) {
+ case GF_EN_DEFRAG_STATUS:
+ break;
+
+ default:
+ break;
+ }
+
+ return ret;
+}
+
+int
+glfs_mgmt_init(struct glfs *fs)
+{
+ cmd_args_t *cmd_args = NULL;
+ struct rpc_clnt *rpc = NULL;
+ dict_t *options = NULL;
+ int ret = -1;
+ int port = GF_DEFAULT_BASE_PORT;
+ char *host = NULL;
+ glusterfs_ctx_t *ctx = NULL;
+
+ ctx = fs->ctx;
+ cmd_args = &ctx->cmd_args;
+
+ if (ctx->mgmt)
+ return 0;
+
+ options = dict_new();
+ if (!options)
+ goto out;
+
+ if (cmd_args->volfile_server_port)
+ port = cmd_args->volfile_server_port;
+
+ if (cmd_args->volfile_server) {
+ host = cmd_args->volfile_server;
+ } else if (cmd_args->volfile_server_transport &&
+ !strcmp(cmd_args->volfile_server_transport, "unix")) {
+ host = DEFAULT_GLUSTERD_SOCKFILE;
+ } else {
+ host = "localhost";
+ }
+
+ if (cmd_args->volfile_server_transport &&
+ !strcmp(cmd_args->volfile_server_transport, "unix")) {
+ ret = rpc_transport_unix_options_build(options, host, 0);
+ } else {
+ xlator_cmdline_option_t *opt = find_xlator_option_in_cmd_args_t(
+ "address-family", cmd_args);
+ ret = rpc_transport_inet_options_build(options, host, port,
+ (opt ? opt->value : NULL));
+ }
+
+ if (ret)
+ goto out;
+
+ rpc = rpc_clnt_new(options, THIS, THIS->name, 8);
+ if (!rpc) {
+ ret = -1;
+ gf_smsg(THIS->name, GF_LOG_WARNING, 0, API_MSG_CREATE_RPC_CLIENT_FAILED,
+ NULL);
+ goto out;
+ }
+
+ ret = rpc_clnt_register_notify(rpc, mgmt_rpc_notify, THIS);
+ if (ret) {
+ gf_smsg(THIS->name, GF_LOG_WARNING, 0, API_MSG_REG_NOTIFY_FUNC_FAILED,
+ NULL);
+ goto out;
+ }
+
+ ret = rpcclnt_cbk_program_register(rpc, &mgmt_cbk_prog, THIS);
+ if (ret) {
+ gf_smsg(THIS->name, GF_LOG_WARNING, 0, API_MSG_REG_CBK_FUNC_FAILED,
+ NULL);
+ goto out;
+ }
+
+ ctx->notify = glusterfs_mgmt_notify;
+
+ /* This value should be set before doing the 'rpc_clnt_start()' as
+ the notify function uses this variable */
+ ctx->mgmt = rpc;
+
+ ret = rpc_clnt_start(rpc);
+out:
+ if (options)
+ dict_unref(options);
+ return ret;
+}
diff --git a/api/src/glfs-resolve.c b/api/src/glfs-resolve.c
new file mode 100644
index 00000000000..8a393ecb464
--- /dev/null
+++ b/api/src/glfs-resolve.c
@@ -0,0 +1,1199 @@
+/*
+ Copyright (c) 2012-2018 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <inttypes.h>
+#include <limits.h>
+
+#include <glusterfs/glusterfs.h>
+#include <glusterfs/logging.h>
+#include <glusterfs/stack.h>
+#include <glusterfs/gf-event.h>
+#include "glfs-mem-types.h"
+#include <glusterfs/common-utils.h>
+#include <glusterfs/syncop.h>
+#include <glusterfs/call-stub.h>
+#include "gfapi-messages.h"
+#include <glusterfs/inode.h>
+#include "glfs-internal.h"
+
+#define graphid_str(subvol) \
+ (uuid_utoa((unsigned char *)subvol->graph->graph_uuid))
+int
+glfs_first_lookup_safe(xlator_t *subvol)
+{
+ loc_t loc = {
+ 0,
+ };
+ int ret = -1;
+
+ loc.inode = subvol->itable->root;
+ memset(loc.gfid, 0, 16);
+ loc.gfid[15] = 1;
+ loc.path = "/";
+ loc.name = "";
+
+ ret = syncop_lookup(subvol, &loc, 0, 0, 0, 0);
+ DECODE_SYNCOP_ERR(ret);
+
+ gf_msg_debug(subvol->name, 0, "first lookup complete %d", ret);
+
+ return ret;
+}
+
+int
+__glfs_first_lookup(struct glfs *fs, xlator_t *subvol)
+{
+ int ret = -1;
+
+ fs->migration_in_progress = 1;
+ pthread_mutex_unlock(&fs->mutex);
+ {
+ ret = glfs_first_lookup_safe(subvol);
+ }
+ pthread_mutex_lock(&fs->mutex);
+ fs->migration_in_progress = 0;
+ pthread_cond_broadcast(&fs->cond);
+
+ /* wake up other waiting tasks */
+ __GLFS_SYNCTASK_WAKE(fs);
+
+ return ret;
+}
+
+/**
+ * We have to check if need_lookup flag is set in both old and the new inodes.
+ * If its set in oldinode, then directly go ahead and do an explicit lookup.
+ * But if its not set in the oldinode, then check if the newinode is linked
+ * via readdirp. If so an explicit lookup is needed on the new inode, so that
+ * below xlators can set their respective contexts.
+ */
+inode_t *
+glfs_refresh_inode_safe(xlator_t *subvol, inode_t *oldinode,
+ gf_boolean_t need_lookup)
+{
+ loc_t loc = {
+ 0,
+ };
+ int ret = -1;
+ struct iatt iatt = {
+ 0,
+ };
+ inode_t *newinode = NULL;
+ gf_boolean_t lookup_needed = _gf_false;
+ uint64_t ctx_value = LOOKUP_NOT_NEEDED;
+
+ if (!oldinode)
+ return NULL;
+
+ if (!need_lookup && oldinode->table->xl == subvol)
+ return inode_ref(oldinode);
+
+ newinode = inode_find(subvol->itable, oldinode->gfid);
+ if (!need_lookup && newinode) {
+ lookup_needed = inode_needs_lookup(newinode, THIS);
+ if (!lookup_needed)
+ return newinode;
+ }
+
+ gf_uuid_copy(loc.gfid, oldinode->gfid);
+ if (!newinode)
+ loc.inode = inode_new(subvol->itable);
+ else
+ loc.inode = newinode;
+
+ if (!loc.inode)
+ return NULL;
+
+ ret = syncop_lookup(subvol, &loc, &iatt, 0, 0, 0);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret) {
+ gf_smsg(subvol->name, GF_LOG_WARNING, errno,
+ API_MSG_INODE_REFRESH_FAILED, "gfid=%s",
+ uuid_utoa(oldinode->gfid), "err=%s", strerror(errno), NULL);
+ loc_wipe(&loc);
+ return NULL;
+ }
+
+ newinode = inode_link(loc.inode, 0, 0, &iatt);
+ if (newinode) {
+ if (newinode == loc.inode)
+ inode_ctx_set(newinode, THIS, &ctx_value);
+ inode_lookup(newinode);
+ } else {
+ gf_smsg(subvol->name, GF_LOG_WARNING, errno, API_MSG_INODE_LINK_FAILED,
+ "gfid=%s", uuid_utoa((unsigned char *)&iatt.ia_gfid), NULL);
+ }
+
+ loc_wipe(&loc);
+
+ return newinode;
+}
+
+inode_t *
+__glfs_refresh_inode(struct glfs *fs, xlator_t *subvol, inode_t *inode,
+ gf_boolean_t need_lookup)
+{
+ inode_t *newinode = NULL;
+
+ fs->migration_in_progress = 1;
+ pthread_mutex_unlock(&fs->mutex);
+ {
+ newinode = glfs_refresh_inode_safe(subvol, inode, need_lookup);
+ }
+ pthread_mutex_lock(&fs->mutex);
+ fs->migration_in_progress = 0;
+ pthread_cond_broadcast(&fs->cond);
+
+ /* wake up other waiting tasks */
+ __GLFS_SYNCTASK_WAKE(fs);
+
+ return newinode;
+}
+
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_loc_touchup, 3.4.0)
+int
+priv_glfs_loc_touchup(loc_t *loc)
+{
+ int ret = 0;
+
+ ret = loc_touchup(loc, loc->name);
+ if (ret < 0) {
+ errno = -ret;
+ ret = -1;
+ }
+
+ return ret;
+}
+
+int
+glfs_resolve_symlink(struct glfs *fs, xlator_t *subvol, inode_t *inode,
+ char **lpath)
+{
+ loc_t loc = {
+ 0,
+ };
+ char *path = NULL;
+ char *rpath = NULL;
+ int ret = -1;
+
+ loc.inode = inode_ref(inode);
+ gf_uuid_copy(loc.gfid, inode->gfid);
+ ret = inode_path(inode, NULL, &rpath);
+ if (ret < 0)
+ goto out;
+ loc.path = rpath;
+
+ ret = syncop_readlink(subvol, &loc, &path, 4096, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+
+ if (ret < 0)
+ goto out;
+
+ if (lpath)
+ *lpath = path;
+out:
+ loc_wipe(&loc);
+ return ret;
+}
+
+int
+glfs_resolve_base(struct glfs *fs, xlator_t *subvol, inode_t *inode,
+ struct iatt *iatt)
+{
+ loc_t loc = {
+ 0,
+ };
+ int ret = -1;
+ char *path = NULL;
+
+ loc.inode = inode_ref(inode);
+ gf_uuid_copy(loc.gfid, inode->gfid);
+
+ ret = inode_path(loc.inode, NULL, &path);
+ loc.path = path;
+ if (ret < 0)
+ goto out;
+
+ ret = syncop_lookup(subvol, &loc, iatt, NULL, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+out:
+ loc_wipe(&loc);
+
+ return ret;
+}
+/*
+ * This function can be used to call named lookup on root.
+ * If you use glfs_resolve_base, that will be a nameless lookup.
+ */
+static int
+glfs_resolve_root(struct glfs *fs, xlator_t *subvol, inode_t *inode,
+ struct iatt *iatt)
+{
+ loc_t loc = {
+ 0,
+ };
+ int ret = -1;
+ char *path = NULL;
+
+ loc.inode = inode_ref(inode);
+
+ ret = inode_path(loc.inode, ".", &path);
+ loc.path = path;
+ loc.name = ".";
+ /* Having a value in loc.name will help to bypass md-cache check for
+ * nameless lookup.
+ * TODO: Re-visit on nameless lookup and md-cache.
+ * Github issue : https://github.com/gluster/glusterfs/issues/232
+ */
+ loc.parent = inode_ref(inode);
+ if (ret < 0)
+ goto out;
+
+ ret = syncop_lookup(subvol, &loc, iatt, NULL, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+out:
+ loc_wipe(&loc);
+
+ return ret;
+}
+
+inode_t *
+glfs_resolve_component(struct glfs *fs, xlator_t *subvol, inode_t *parent,
+ const char *component, struct iatt *iatt,
+ int force_lookup)
+{
+ loc_t loc = {
+ 0,
+ };
+ inode_t *inode = NULL;
+ inode_t *temp_parent = NULL;
+ int reval = 0;
+ int ret = -1;
+ int glret = -1;
+ struct iatt ciatt = {
+ 0,
+ };
+ uuid_t gfid;
+ dict_t *xattr_req = NULL;
+ uint64_t ctx_value = LOOKUP_NOT_NEEDED;
+
+ loc.parent = inode_ref(parent);
+ gf_uuid_copy(loc.pargfid, parent->gfid);
+
+ if (__is_root_gfid(parent->gfid) &&
+ ((strcmp(component, ".") == 0) || (strcmp(component, "..") == 0) ||
+ (strcmp(component, "") == 0))) {
+ if (!force_lookup) {
+ inode = inode_ref(parent);
+ } else {
+ ret = glfs_resolve_root(fs, subvol, parent, &ciatt);
+ if (!ret)
+ inode = inode_ref(parent);
+ }
+ goto found;
+ }
+ /* *
+ * if the component name is either "." or "..", it will try to
+ * resolve that if inode has a proper parent (named lookup).
+ *
+ * Below condition works like this
+ *
+ * Example 1 :
+ * Path /out_dir/dir/in_dir/.
+ * In put values :
+ * parent = in_dir
+ * component : "."
+ *
+ * Out put values:
+ * parent : dir
+ * component : "in_dir"
+ *
+ * Example 2 :
+ * Path /out_dir/dir/in_dir/..
+ * In put values :
+ * parent = in_dir
+ * component : ".."
+ *
+ * Out put values:
+ * parent : output_dir
+ * component : "dir"
+ *
+ * In case of nameless lookup, both "." and ".." retained
+ */
+
+ if (strcmp(component, ".") == 0) {
+ loc.inode = inode_ref(parent);
+ temp_parent = inode_parent(loc.inode, 0, 0);
+ if (temp_parent) {
+ inode_unref(loc.parent);
+ loc.parent = temp_parent;
+ gf_uuid_copy(loc.pargfid, temp_parent->gfid);
+ inode_find_directory_name(loc.inode, &loc.name);
+ }
+
+ } else if (strcmp(component, "..") == 0) {
+ loc.inode = inode_parent(parent, 0, 0);
+ if (loc.inode) {
+ temp_parent = inode_parent(loc.inode, 0, 0);
+ if (temp_parent) {
+ inode_unref(loc.parent);
+ loc.parent = temp_parent;
+ gf_uuid_copy(loc.pargfid, temp_parent->gfid);
+ inode_find_directory_name(loc.inode, &loc.name);
+ } else if (__is_root_gfid(loc.inode->gfid)) {
+ inode_unref(loc.parent);
+ loc.parent = inode_ref(loc.inode);
+ gf_uuid_copy(loc.pargfid, loc.inode->gfid);
+ loc.name = ".";
+ } else {
+ inode_unref(loc.inode);
+ loc.inode = NULL;
+ }
+ }
+ } else
+ loc.inode = inode_grep(parent->table, parent, component);
+
+ if (!loc.name)
+ loc.name = component;
+
+ if (loc.inode) {
+ gf_uuid_copy(loc.gfid, loc.inode->gfid);
+ reval = 1;
+
+ if (!(force_lookup || inode_needs_lookup(loc.inode, THIS))) {
+ inode = inode_ref(loc.inode);
+ goto found;
+ }
+ } else {
+ gf_uuid_generate(gfid);
+ loc.inode = inode_new(parent->table);
+ if (!loc.inode) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ xattr_req = dict_new();
+ if (!xattr_req) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ ret = dict_set_gfuuid(xattr_req, "gfid-req", gfid, true);
+ if (ret) {
+ errno = ENOMEM;
+ goto out;
+ }
+ }
+
+ glret = priv_glfs_loc_touchup(&loc);
+ if (glret < 0) {
+ ret = -1;
+ goto out;
+ }
+
+ ret = syncop_lookup(subvol, &loc, &ciatt, NULL, xattr_req, NULL);
+ if (ret && reval) {
+ /*
+ * A stale mapping might exist for a dentry/inode that has been
+ * removed from another client.
+ */
+ if (-ret == ENOENT) {
+ inode_unlink(loc.inode, loc.parent, loc.name);
+ if (!inode_has_dentry(loc.inode))
+ inode_forget(loc.inode, 0);
+ }
+
+ inode_unref(loc.inode);
+ gf_uuid_clear(loc.gfid);
+ loc.inode = inode_new(parent->table);
+ if (!loc.inode) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ xattr_req = dict_new();
+ if (!xattr_req) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ gf_uuid_generate(gfid);
+
+ ret = dict_set_gfuuid(xattr_req, "gfid-req", gfid, true);
+ if (ret) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ ret = syncop_lookup(subvol, &loc, &ciatt, NULL, xattr_req, NULL);
+ }
+ DECODE_SYNCOP_ERR(ret);
+ if (ret)
+ goto out;
+
+ inode = inode_link(loc.inode, loc.parent, component, &ciatt);
+
+ if (!inode) {
+ gf_smsg(subvol->name, GF_LOG_WARNING, errno, API_MSG_INODE_LINK_FAILED,
+ "gfid=%s", uuid_utoa((unsigned char *)&ciatt.ia_gfid), NULL);
+ goto out;
+ } else if (inode == loc.inode)
+ inode_ctx_set(inode, THIS, &ctx_value);
+found:
+ if (inode) {
+ ciatt.ia_type = inode->ia_type;
+ inode_lookup(inode);
+ }
+ if (iatt)
+ *iatt = ciatt;
+out:
+ if (xattr_req)
+ dict_unref(xattr_req);
+ loc_wipe(&loc);
+
+ return inode;
+}
+
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_resolve_at, 3.4.0)
+int
+priv_glfs_resolve_at(struct glfs *fs, xlator_t *subvol, inode_t *at,
+ const char *origpath, loc_t *loc, struct iatt *iatt,
+ int follow, int reval)
+{
+ inode_t *inode = NULL;
+ inode_t *parent = NULL;
+ char *saveptr = NULL;
+ char *path = NULL;
+ char *component = NULL;
+ char *next_component = NULL;
+ int ret = -1;
+ struct iatt ciatt = {
+ 0,
+ };
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ if (origpath[0] == '\0') {
+ errno = EINVAL;
+ goto invalid_fs;
+ }
+
+ parent = NULL;
+ if (at && origpath[0] != '/') {
+ /* A relative resolution of a path which starts with '/'
+ is equal to an absolute path resolution.
+ */
+ inode = inode_ref(at);
+ } else {
+ inode = inode_ref(subvol->itable->root);
+
+ if (strcmp(origpath, "/") == 0)
+ glfs_resolve_root(fs, subvol, inode, &ciatt);
+ }
+
+ path = gf_strdup(origpath);
+ if (!path)
+ goto invalid_fs;
+
+ for (component = strtok_r(path, "/", &saveptr); component;
+ component = next_component) {
+ next_component = strtok_r(NULL, "/", &saveptr);
+
+ if (parent)
+ inode_unref(parent);
+ parent = inode;
+ inode = glfs_resolve_component(fs, subvol, parent, component, &ciatt,
+ /* force hard lookup on the last
+ component, as the caller
+ wants proper iatt filled
+ */
+ (reval || (!next_component && iatt)));
+ if (!inode) {
+ ret = -1;
+ break;
+ }
+
+ if (IA_ISLNK(ciatt.ia_type) && (next_component || follow)) {
+ /* If the component is not the last piece,
+ then following it is necessary even if
+ not requested by the caller
+ */
+ char *lpath = NULL;
+ loc_t sym_loc = {
+ 0,
+ };
+
+ if (follow > GLFS_SYMLINK_MAX_FOLLOW) {
+ errno = ELOOP;
+ ret = -1;
+ if (inode) {
+ inode_unref(inode);
+ inode = NULL;
+ }
+ break;
+ }
+
+ ret = glfs_resolve_symlink(fs, subvol, inode, &lpath);
+ inode_unref(inode);
+ inode = NULL;
+ if (ret < 0)
+ break;
+
+ ret = priv_glfs_resolve_at(fs, subvol, parent, lpath, &sym_loc,
+ /* followed iatt becomes the
+ component iatt
+ */
+ &ciatt,
+ /* always recurisvely follow while
+ following symlink
+ */
+ follow + 1, reval);
+ if (ret == 0)
+ inode = inode_ref(sym_loc.inode);
+ loc_wipe(&sym_loc);
+ GF_FREE(lpath);
+ }
+
+ if (!next_component)
+ break;
+
+ if (!IA_ISDIR(ciatt.ia_type)) {
+ /* next_component exists and this component is
+ not a directory
+ */
+ inode_unref(inode);
+ inode = NULL;
+ ret = -1;
+ errno = ENOTDIR;
+ break;
+ }
+ }
+
+ if (parent && next_component)
+ /* resolution failed mid-way */
+ goto out;
+
+ /* At this point, all components up to the last parent directory
+ have been resolved successfully (@parent). Resolution of basename
+ might have failed (@inode) if at all.
+ */
+
+ loc->parent = parent;
+ if (parent) {
+ gf_uuid_copy(loc->pargfid, parent->gfid);
+ loc->name = component;
+ }
+
+ loc->inode = inode;
+ if (inode) {
+ gf_uuid_copy(loc->gfid, inode->gfid);
+ if (iatt)
+ *iatt = ciatt;
+ ret = 0;
+ }
+
+ if (priv_glfs_loc_touchup(loc) < 0) {
+ ret = -1;
+ }
+out:
+ GF_FREE(path);
+ __GLFS_EXIT_FS;
+
+ /* do NOT loc_wipe here as only last component might be missing */
+invalid_fs:
+ return ret;
+}
+
+int
+glfs_resolve_path(struct glfs *fs, xlator_t *subvol, const char *origpath,
+ loc_t *loc, struct iatt *iatt, int follow, int reval)
+{
+ int ret = -1;
+ inode_t *cwd = NULL;
+
+ if (origpath[0] == '/')
+ return priv_glfs_resolve_at(fs, subvol, NULL, origpath, loc, iatt,
+ follow, reval);
+
+ cwd = glfs_cwd_get(fs);
+ if (NULL == cwd) {
+ gf_smsg(subvol->name, GF_LOG_WARNING, EIO, API_MSG_GET_CWD_FAILED,
+ NULL);
+ errno = EIO;
+ goto out;
+ }
+
+ ret = priv_glfs_resolve_at(fs, subvol, cwd, origpath, loc, iatt, follow,
+ reval);
+ if (cwd)
+ inode_unref(cwd);
+
+out:
+ return ret;
+}
+
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_resolve, 3.7.0)
+int
+priv_glfs_resolve(struct glfs *fs, xlator_t *subvol, const char *origpath,
+ loc_t *loc, struct iatt *iatt, int reval)
+{
+ int ret = -1;
+
+ ret = glfs_resolve_path(fs, subvol, origpath, loc, iatt, 1, reval);
+
+ return ret;
+}
+
+int
+glfs_lresolve(struct glfs *fs, xlator_t *subvol, const char *origpath,
+ loc_t *loc, struct iatt *iatt, int reval)
+{
+ int ret = -1;
+
+ ret = glfs_resolve_path(fs, subvol, origpath, loc, iatt, 0, reval);
+
+ return ret;
+}
+
+int
+glfs_migrate_fd_locks_safe(struct glfs *fs, xlator_t *oldsubvol, fd_t *oldfd,
+ xlator_t *newsubvol, fd_t *newfd)
+{
+ dict_t *lockinfo = NULL;
+ int ret = 0;
+ char uuid1[64];
+
+ if (!oldfd->lk_ctx || fd_lk_ctx_empty(oldfd->lk_ctx))
+ return 0;
+
+ newfd->lk_ctx = fd_lk_ctx_ref(oldfd->lk_ctx);
+
+ ret = syncop_fgetxattr(oldsubvol, oldfd, &lockinfo, GF_XATTR_LOCKINFO_KEY,
+ NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+ if (ret < 0) {
+ gf_smsg(fs->volname, GF_LOG_WARNING, errno, API_MSG_FGETXATTR_FAILED,
+ "gfid=%s", uuid_utoa_r(oldfd->inode->gfid, uuid1), "err=%s",
+ strerror(errno), "subvol=%s", graphid_str(oldsubvol), "id=%d",
+ oldsubvol->graph->id, NULL);
+ goto out;
+ }
+
+ if (!dict_get(lockinfo, GF_XATTR_LOCKINFO_KEY)) {
+ gf_smsg(fs->volname, GF_LOG_WARNING, 0, API_MSG_LOCKINFO_KEY_MISSING,
+ "gfid=%s", uuid_utoa_r(oldfd->inode->gfid, uuid1), "subvol=%s",
+ graphid_str(oldsubvol), "id=%d", oldsubvol->graph->id, NULL);
+ goto out;
+ }
+
+ ret = syncop_fsetxattr(newsubvol, newfd, lockinfo, 0, NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+ if (ret < 0) {
+ gf_smsg(fs->volname, GF_LOG_WARNING, 0, API_MSG_FSETXATTR_FAILED,
+ "gfid=%s", uuid_utoa_r(newfd->inode->gfid, uuid1), "err=%s",
+ strerror(errno), "subvol=%s", graphid_str(newsubvol), "id=%d",
+ newsubvol->graph->id, NULL);
+ goto out;
+ }
+out:
+ if (lockinfo)
+ dict_unref(lockinfo);
+ return ret;
+}
+
+fd_t *
+glfs_migrate_fd_safe(struct glfs *fs, xlator_t *newsubvol, fd_t *oldfd)
+{
+ fd_t *newfd = NULL;
+ inode_t *oldinode = NULL;
+ inode_t *newinode = NULL;
+ xlator_t *oldsubvol = NULL;
+ int ret = -1;
+ loc_t loc = {
+ 0,
+ };
+ char uuid1[64];
+ dict_t *xdata = NULL;
+
+ oldinode = oldfd->inode;
+ oldsubvol = oldinode->table->xl;
+
+ if (oldsubvol == newsubvol)
+ return fd_ref(oldfd);
+
+ if (!oldsubvol->switched) {
+ xdata = dict_new();
+ if (!xdata || dict_set_int8(xdata, "last-fsync", 1)) {
+ gf_smsg(fs->volname, GF_LOG_WARNING, ENOMEM, API_MSG_FSYNC_FAILED,
+ "err=%s", "last-fsync set failed", "gfid=%s",
+ uuid_utoa_r(oldfd->inode->gfid, uuid1), "subvol=%s",
+ graphid_str(oldsubvol), "id=%d", oldsubvol->graph->id,
+ NULL);
+ }
+
+ ret = syncop_fsync(oldsubvol, oldfd, 0, NULL, NULL, xdata, NULL);
+ DECODE_SYNCOP_ERR(ret);
+ if (ret) {
+ gf_smsg(fs->volname, GF_LOG_WARNING, errno, API_MSG_FSYNC_FAILED,
+ "err=%s", strerror(errno), "gfid=%s",
+ uuid_utoa_r(oldfd->inode->gfid, uuid1), "subvol=%s",
+ graphid_str(oldsubvol), "id=%d", oldsubvol->graph->id,
+ NULL);
+ }
+ }
+
+ newinode = glfs_refresh_inode_safe(newsubvol, oldinode, _gf_false);
+ if (!newinode) {
+ gf_smsg(fs->volname, GF_LOG_WARNING, errno,
+ API_MSG_INODE_REFRESH_FAILED, "gfid=%s",
+ uuid_utoa_r(oldinode->gfid, uuid1), "err=%s", strerror(errno),
+ "subvol=%s", graphid_str(newsubvol), "id=%d",
+ newsubvol->graph->id, NULL);
+ goto out;
+ }
+
+ newfd = fd_create(newinode, getpid());
+ if (!newfd) {
+ gf_smsg(fs->volname, GF_LOG_WARNING, errno,
+ API_MSG_FDCREATE_FAILED_ON_GRAPH, "gfid=%s",
+ uuid_utoa_r(newinode->gfid, uuid1), "err=%s", strerror(errno),
+ "subvol=%s", graphid_str(newsubvol), "id=%d",
+ newsubvol->graph->id, NULL);
+ goto out;
+ }
+
+ loc.inode = inode_ref(newinode);
+
+ ret = inode_path(oldfd->inode, NULL, (char **)&loc.path);
+ if (ret < 0) {
+ gf_smsg(fs->volname, GF_LOG_INFO, 0, API_MSG_INODE_PATH_FAILED, NULL);
+ goto out;
+ }
+
+ gf_uuid_copy(loc.gfid, oldinode->gfid);
+
+ if (IA_ISDIR(oldinode->ia_type))
+ ret = syncop_opendir(newsubvol, &loc, newfd, NULL, NULL);
+ else
+ ret = syncop_open(newsubvol, &loc,
+ oldfd->flags & ~(O_TRUNC | O_EXCL | O_CREAT), newfd,
+ NULL, NULL);
+ DECODE_SYNCOP_ERR(ret);
+ loc_wipe(&loc);
+
+ if (ret) {
+ gf_smsg(fs->volname, GF_LOG_WARNING, errno, API_MSG_SYNCOP_OPEN_FAILED,
+ "type=%s", IA_ISDIR(oldinode->ia_type) ? "dir" : "", "gfid=%s",
+ uuid_utoa_r(newinode->gfid, uuid1), "err=%s", strerror(errno),
+ "subvol=%s", graphid_str(newsubvol), "id=%d",
+ newsubvol->graph->id, NULL);
+ goto out;
+ }
+
+ ret = glfs_migrate_fd_locks_safe(fs, oldsubvol, oldfd, newsubvol, newfd);
+
+ if (ret) {
+ gf_smsg(fs->volname, GF_LOG_WARNING, errno, API_MSG_LOCK_MIGRATE_FAILED,
+ "gfid=%s", uuid_utoa_r(newinode->gfid, uuid1), "err=%s",
+ strerror(errno), "subvol=%s", graphid_str(newsubvol), "id=%d",
+ newsubvol->graph->id, NULL);
+ goto out;
+ }
+
+ newfd->flags = oldfd->flags;
+ fd_bind(newfd);
+out:
+ if (newinode)
+ inode_unref(newinode);
+
+ if (ret) {
+ fd_unref(newfd);
+ newfd = NULL;
+ }
+
+ if (xdata)
+ dict_unref(xdata);
+
+ return newfd;
+}
+
+fd_t *
+__glfs_migrate_fd(struct glfs *fs, xlator_t *newsubvol, struct glfs_fd *glfd)
+{
+ fd_t *oldfd = NULL;
+ fd_t *newfd = NULL;
+
+ oldfd = glfd->fd;
+
+ fs->migration_in_progress = 1;
+ pthread_mutex_unlock(&fs->mutex);
+ {
+ newfd = glfs_migrate_fd_safe(fs, newsubvol, oldfd);
+ }
+ pthread_mutex_lock(&fs->mutex);
+ fs->migration_in_progress = 0;
+ pthread_cond_broadcast(&fs->cond);
+
+ /* wake up other waiting tasks */
+ __GLFS_SYNCTASK_WAKE(fs);
+
+ return newfd;
+}
+
+fd_t *
+__glfs_resolve_fd(struct glfs *fs, xlator_t *subvol, struct glfs_fd *glfd)
+{
+ fd_t *fd = NULL;
+
+ if (glfd->fd->inode->table->xl == subvol)
+ return fd_ref(glfd->fd);
+
+ fd = __glfs_migrate_fd(fs, subvol, glfd);
+ if (!fd)
+ return NULL;
+
+ if (subvol == fs->active_subvol) {
+ fd_unref(glfd->fd);
+ glfd->fd = fd_ref(fd);
+ }
+
+ return fd;
+}
+
+fd_t *
+glfs_resolve_fd(struct glfs *fs, xlator_t *subvol, struct glfs_fd *glfd)
+{
+ fd_t *fd = NULL;
+
+ glfs_lock(fs, _gf_true);
+ {
+ fd = __glfs_resolve_fd(fs, subvol, glfd);
+ }
+ glfs_unlock(fs);
+
+ return fd;
+}
+
+void
+__glfs_migrate_openfds(struct glfs *fs, xlator_t *subvol)
+{
+ struct glfs_fd *glfd = NULL;
+ fd_t *fd = NULL;
+
+ list_for_each_entry(glfd, &fs->openfds, openfds)
+ {
+ if (gf_uuid_is_null(glfd->fd->inode->gfid)) {
+ gf_smsg(fs->volname, GF_LOG_INFO, 0, API_MSG_OPENFD_SKIPPED,
+ "glfd=%p", glfd, "glfd->fd=%p", glfd->fd, "subvol=%s",
+ graphid_str(subvol), "id=%d", subvol->graph->id, NULL);
+ /* create in progress, defer */
+ continue;
+ }
+
+ fd = __glfs_migrate_fd(fs, subvol, glfd);
+ if (fd) {
+ fd_unref(glfd->fd);
+ glfd->fd = fd;
+ }
+ }
+}
+
+/* Note that though it appears that this function executes under fs->mutex,
+ * it is not fully executed under fs->mutex. i.e. there are functions like
+ * __glfs_first_lookup, __glfs_refresh_inode, __glfs_migrate_openfds which
+ * unlocks fs->mutex before sending any network fop, and reacquire fs->mutex
+ * once the fop is complete. Hence the variable read from fs at the start of the
+ * function need not have the same value by the end of the function.
+ */
+xlator_t *
+__glfs_active_subvol(struct glfs *fs)
+{
+ xlator_t *new_subvol = NULL;
+ int ret = -1;
+ inode_t *new_cwd = NULL;
+
+ if (!fs->next_subvol)
+ return fs->active_subvol;
+
+ new_subvol = fs->mip_subvol = fs->next_subvol;
+ fs->next_subvol = NULL;
+
+ ret = __glfs_first_lookup(fs, new_subvol);
+ if (ret) {
+ gf_smsg(fs->volname, GF_LOG_INFO, errno,
+ API_MSG_FIRST_LOOKUP_GRAPH_FAILED, "subvol=%s",
+ graphid_str(new_subvol), "id=%d", new_subvol->graph->id,
+ "err=%s", strerror(errno), NULL);
+ return NULL;
+ }
+
+ if (fs->cwd) {
+ new_cwd = __glfs_refresh_inode(fs, new_subvol, fs->cwd, _gf_false);
+
+ if (!new_cwd) {
+ char buf1[64];
+ gf_smsg(fs->volname, GF_LOG_INFO, errno,
+ API_MSG_CWD_GRAPH_REF_FAILED, "buf=%s",
+ uuid_utoa_r(fs->cwd->gfid, buf1), "subvol=%s",
+ graphid_str(new_subvol), "id=%d", new_subvol->graph->id,
+ "err=%s", strerror(errno), NULL);
+ return NULL;
+ }
+ }
+
+ __glfs_migrate_openfds(fs, new_subvol);
+ /* TODO: Migrate the fds and inodes which have leases to the new graph
+ * (issue #350)*/
+
+ /* switching @active_subvol and @cwd
+ should be atomic
+ */
+ fs->old_subvol = fs->active_subvol;
+ fs->active_subvol = fs->mip_subvol;
+ fs->mip_subvol = NULL;
+
+ if (new_cwd) {
+ __glfs_cwd_set(fs, new_cwd);
+ inode_unref(new_cwd);
+ }
+
+ gf_smsg(fs->volname, GF_LOG_INFO, 0, API_MSG_SWITCHED_GRAPH, "subvol=%s",
+ graphid_str(new_subvol), "id=%d", new_subvol->graph->id, NULL);
+
+ return new_subvol;
+}
+
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_subvol_done, 3.4.0)
+void
+priv_glfs_subvol_done(struct glfs *fs, xlator_t *subvol)
+{
+ int ref = 0;
+ xlator_t *active_subvol = NULL;
+
+ if (!subvol)
+ return;
+
+ /* For decrementing subvol->wind ref count we need not check/wait for
+ * migration-in-progress flag.
+ * Also glfs_subvol_done is called in call-back path therefore waiting
+ * for migration-in-progress flag can lead to dead-lock.
+ */
+ glfs_lock(fs, _gf_false);
+ {
+ ref = (--subvol->winds);
+ active_subvol = fs->active_subvol;
+ }
+ glfs_unlock(fs);
+
+ if (ref == 0) {
+ assert(subvol != active_subvol);
+ xlator_notify(subvol, GF_EVENT_PARENT_DOWN, subvol, NULL);
+ }
+}
+
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_active_subvol, 3.4.0)
+xlator_t *
+priv_glfs_active_subvol(struct glfs *fs)
+{
+ xlator_t *subvol = NULL;
+ xlator_t *old_subvol = NULL;
+
+ glfs_lock(fs, _gf_true);
+ {
+ subvol = __glfs_active_subvol(fs);
+
+ if (subvol)
+ subvol->winds++;
+
+ if (fs->old_subvol) {
+ old_subvol = fs->old_subvol;
+ fs->old_subvol = NULL;
+ old_subvol->switched = 1;
+ }
+ }
+ glfs_unlock(fs);
+
+ if (old_subvol)
+ priv_glfs_subvol_done(fs, old_subvol);
+
+ return subvol;
+}
+
+int
+__glfs_cwd_set(struct glfs *fs, inode_t *inode)
+{
+ if (inode->table->xl != fs->active_subvol) {
+ inode = __glfs_refresh_inode(fs, fs->active_subvol, inode, _gf_false);
+ if (!inode)
+ return -1;
+ } else {
+ inode_ref(inode);
+ }
+
+ if (fs->cwd)
+ inode_unref(fs->cwd);
+
+ fs->cwd = inode;
+
+ return 0;
+}
+
+int
+glfs_cwd_set(struct glfs *fs, inode_t *inode)
+{
+ int ret = 0;
+
+ glfs_lock(fs, _gf_true);
+ {
+ ret = __glfs_cwd_set(fs, inode);
+ }
+ glfs_unlock(fs);
+
+ return ret;
+}
+
+inode_t *
+__glfs_cwd_get(struct glfs *fs)
+{
+ inode_t *cwd = NULL;
+
+ if (!fs->cwd)
+ return NULL;
+
+ if (fs->cwd->table->xl == fs->active_subvol) {
+ cwd = inode_ref(fs->cwd);
+ return cwd;
+ }
+
+ cwd = __glfs_refresh_inode(fs, fs->active_subvol, fs->cwd, _gf_false);
+
+ return cwd;
+}
+
+inode_t *
+glfs_cwd_get(struct glfs *fs)
+{
+ inode_t *cwd = NULL;
+
+ glfs_lock(fs, _gf_true);
+ {
+ cwd = __glfs_cwd_get(fs);
+ }
+ glfs_unlock(fs);
+
+ return cwd;
+}
+
+inode_t *
+__glfs_resolve_inode(struct glfs *fs, xlator_t *subvol,
+ struct glfs_object *object)
+{
+ inode_t *inode = NULL;
+ gf_boolean_t lookup_needed = _gf_false;
+
+ lookup_needed = inode_needs_lookup(object->inode, THIS);
+
+ if (!lookup_needed && object->inode->table->xl == subvol)
+ return inode_ref(object->inode);
+
+ inode = __glfs_refresh_inode(fs, fs->active_subvol, object->inode,
+ lookup_needed);
+ if (!inode)
+ return NULL;
+
+ if (subvol == fs->active_subvol) {
+ inode_unref(object->inode);
+ object->inode = inode_ref(inode);
+ }
+
+ return inode;
+}
+
+inode_t *
+glfs_resolve_inode(struct glfs *fs, xlator_t *subvol,
+ struct glfs_object *object)
+{
+ inode_t *inode = NULL;
+
+ glfs_lock(fs, _gf_true);
+ {
+ inode = __glfs_resolve_inode(fs, subvol, object);
+ }
+ glfs_unlock(fs);
+
+ return inode;
+}
+
+int
+glfs_create_object(loc_t *loc, struct glfs_object **retobject)
+{
+ struct glfs_object *object = NULL;
+
+ object = GF_CALLOC(1, sizeof(struct glfs_object), glfs_mt_glfs_object_t);
+ if (object == NULL) {
+ errno = ENOMEM;
+ return -1;
+ }
+
+ object->inode = loc->inode;
+ gf_uuid_copy(object->gfid, object->inode->gfid);
+
+ /* we hold the reference */
+ loc->inode = NULL;
+
+ *retobject = object;
+
+ return 0;
+}
+
+struct glfs_object *
+glfs_h_resolve_symlink(struct glfs *fs, struct glfs_object *object)
+{
+ xlator_t *subvol = NULL;
+ loc_t sym_loc = {
+ 0,
+ };
+ struct iatt iatt = {
+ 0,
+ };
+ char *lpath = NULL;
+ int ret = 0;
+ struct glfs_object *target_object = NULL;
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ ret = glfs_resolve_symlink(fs, subvol, object->inode, &lpath);
+ if (ret < 0)
+ goto out;
+
+ ret = glfs_resolve_at(fs, subvol, NULL, lpath, &sym_loc, &iatt,
+ /* always recurisvely follow while
+ following symlink
+ */
+ 1, 0);
+ if (ret == 0)
+ ret = glfs_create_object(&sym_loc, &target_object);
+
+out:
+ loc_wipe(&sym_loc);
+ GF_FREE(lpath);
+ return target_object;
+}
diff --git a/api/src/glfs.c b/api/src/glfs.c
new file mode 100644
index 00000000000..b4bf1423f6d
--- /dev/null
+++ b/api/src/glfs.c
@@ -0,0 +1,1806 @@
+/*
+ Copyright (c) 2012-2018 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+/*
+ TODO:
+ - set proper pid/lk_owner to call frames (currently buried in syncop)
+ - fix logging.c/h to store logfp and loglevel in glusterfs_ctx_t and
+ reach it via THIS.
+ - update syncop functions to accept/return xdata. ???
+ - protocol/client to reconnect immediately after portmap disconnect.
+ - handle SEEK_END failure in _lseek()
+ - handle umask (per filesystem?)
+ - make itables LRU based
+ - 0-copy for readv/writev
+ - reconcile the open/creat mess
+*/
+
+#include <unistd.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <inttypes.h>
+#include <sys/types.h>
+#include <unistd.h>
+#include <limits.h>
+#ifdef GF_LINUX_HOST_OS
+#include <sys/prctl.h>
+#endif
+
+#include <glusterfs/glusterfs.h>
+#include <glusterfs/logging.h>
+#include <glusterfs/stack.h>
+#include <glusterfs/gf-event.h>
+#include "glfs-mem-types.h"
+#include <glusterfs/common-utils.h>
+#include <glusterfs/syncop.h>
+#include <glusterfs/call-stub.h>
+#include <glusterfs/hashfn.h>
+#include "rpc-clnt.h"
+#include <glusterfs/statedump.h>
+#include <glusterfs/syscall.h>
+
+#include "gfapi-messages.h"
+#include "glfs.h"
+#include "glfs-internal.h"
+
+static gf_boolean_t
+vol_assigned(cmd_args_t *args)
+{
+ return args->volfile || args->volfile_server;
+}
+
+static int
+glusterfs_ctx_defaults_init(glusterfs_ctx_t *ctx)
+{
+ call_pool_t *pool = NULL;
+ int ret = -1;
+
+ if (!ctx) {
+ goto err;
+ }
+
+ ret = xlator_mem_acct_init(THIS, glfs_mt_end + 1);
+ if (ret != 0) {
+ gf_smsg(THIS->name, GF_LOG_ERROR, ENOMEM, API_MSG_MEM_ACCT_INIT_FAILED,
+ NULL);
+ return ret;
+ }
+
+ /* reset ret to -1 so that we don't need to explicitly
+ * set it in all error paths before "goto err"
+ */
+
+ ret = -1;
+
+ ctx->process_uuid = generate_glusterfs_ctx_id();
+ if (!ctx->process_uuid) {
+ goto err;
+ }
+
+ ctx->page_size = 128 * GF_UNIT_KB;
+
+ ctx->iobuf_pool = iobuf_pool_new();
+ if (!ctx->iobuf_pool) {
+ goto err;
+ }
+
+ ctx->event_pool = gf_event_pool_new(DEFAULT_EVENT_POOL_SIZE,
+ STARTING_EVENT_THREADS);
+ if (!ctx->event_pool) {
+ goto err;
+ }
+
+ ctx->env = syncenv_new(0, 0, 0);
+ if (!ctx->env) {
+ goto err;
+ }
+
+ pool = GF_CALLOC(1, sizeof(call_pool_t), glfs_mt_call_pool_t);
+ if (!pool) {
+ goto err;
+ }
+
+ /* frame_mem_pool size 112 * 4k */
+ pool->frame_mem_pool = mem_pool_new(call_frame_t, 4096);
+ if (!pool->frame_mem_pool) {
+ goto err;
+ }
+ /* stack_mem_pool size 256 * 1024 */
+ pool->stack_mem_pool = mem_pool_new(call_stack_t, 1024);
+ if (!pool->stack_mem_pool) {
+ goto err;
+ }
+
+ ctx->stub_mem_pool = mem_pool_new(call_stub_t, 1024);
+ if (!ctx->stub_mem_pool) {
+ goto err;
+ }
+
+ ctx->dict_pool = mem_pool_new(dict_t, GF_MEMPOOL_COUNT_OF_DICT_T);
+ if (!ctx->dict_pool)
+ goto err;
+
+ ctx->dict_pair_pool = mem_pool_new(data_pair_t,
+ GF_MEMPOOL_COUNT_OF_DATA_PAIR_T);
+ if (!ctx->dict_pair_pool)
+ goto err;
+
+ ctx->dict_data_pool = mem_pool_new(data_t, GF_MEMPOOL_COUNT_OF_DATA_T);
+ if (!ctx->dict_data_pool)
+ goto err;
+
+ ctx->logbuf_pool = mem_pool_new(log_buf_t, GF_MEMPOOL_COUNT_OF_LRU_BUF_T);
+ if (!ctx->logbuf_pool)
+ goto err;
+
+ INIT_LIST_HEAD(&pool->all_frames);
+ INIT_LIST_HEAD(&ctx->cmd_args.xlator_options);
+ INIT_LIST_HEAD(&ctx->cmd_args.volfile_servers);
+
+ LOCK_INIT(&pool->lock);
+ ctx->pool = pool;
+
+ ret = 0;
+err:
+ if (ret && pool) {
+ if (pool->frame_mem_pool)
+ mem_pool_destroy(pool->frame_mem_pool);
+ if (pool->stack_mem_pool)
+ mem_pool_destroy(pool->stack_mem_pool);
+ GF_FREE(pool);
+ }
+
+ if (ret && ctx) {
+ if (ctx->stub_mem_pool)
+ mem_pool_destroy(ctx->stub_mem_pool);
+ if (ctx->dict_pool)
+ mem_pool_destroy(ctx->dict_pool);
+ if (ctx->dict_data_pool)
+ mem_pool_destroy(ctx->dict_data_pool);
+ if (ctx->dict_pair_pool)
+ mem_pool_destroy(ctx->dict_pair_pool);
+ if (ctx->logbuf_pool)
+ mem_pool_destroy(ctx->logbuf_pool);
+ }
+
+ return ret;
+}
+
+static int
+create_master(struct glfs *fs)
+{
+ int ret = 0;
+ xlator_t *master = NULL;
+
+ master = GF_CALLOC(1, sizeof(*master), glfs_mt_xlator_t);
+ if (!master)
+ goto err;
+
+ master->name = gf_strdup("gfapi");
+ if (!master->name)
+ goto err;
+
+ if (xlator_set_type(master, "mount/api") == -1) {
+ gf_smsg("glfs", GF_LOG_ERROR, 0, API_MSG_MASTER_XLATOR_INIT_FAILED,
+ "name=%s", fs->volname, NULL);
+ goto err;
+ }
+
+ master->ctx = fs->ctx;
+ master->private = fs;
+ master->options = dict_new();
+ if (!master->options)
+ goto err;
+
+ ret = xlator_init(master);
+ if (ret) {
+ gf_smsg("glfs", GF_LOG_ERROR, 0, API_MSG_GFAPI_XLATOR_INIT_FAILED,
+ NULL);
+ goto err;
+ }
+
+ fs->ctx->master = master;
+ THIS = master;
+
+ return 0;
+
+err:
+ if (master) {
+ xlator_destroy(master);
+ }
+
+ return -1;
+}
+
+static FILE *
+get_volfp(struct glfs *fs)
+{
+ cmd_args_t *cmd_args = NULL;
+ FILE *specfp = NULL;
+
+ cmd_args = &fs->ctx->cmd_args;
+
+ if ((specfp = fopen(cmd_args->volfile, "r")) == NULL) {
+ gf_smsg("glfs", GF_LOG_ERROR, errno, API_MSG_VOLFILE_OPEN_FAILED,
+ "file=%s", cmd_args->volfile, "err=%s", strerror(errno), NULL);
+ return NULL;
+ }
+
+ gf_msg_debug("glfs", 0, "loading volume file %s", cmd_args->volfile);
+
+ return specfp;
+}
+
+int
+glfs_volumes_init(struct glfs *fs)
+{
+ FILE *fp = NULL;
+ cmd_args_t *cmd_args = NULL;
+ int ret = 0;
+
+ cmd_args = &fs->ctx->cmd_args;
+
+ if (!vol_assigned(cmd_args))
+ return -1;
+
+ if (sys_access(SECURE_ACCESS_FILE, F_OK) == 0) {
+ fs->ctx->secure_mgmt = 1;
+ fs->ctx->ssl_cert_depth = glusterfs_read_secure_access_file();
+ }
+
+ if (cmd_args->volfile_server) {
+ ret = glfs_mgmt_init(fs);
+ goto out;
+ }
+
+ fp = get_volfp(fs);
+
+ if (!fp) {
+ gf_smsg("glfs", GF_LOG_ERROR, ENOENT, API_MSG_VOL_SPEC_FILE_ERROR,
+ NULL);
+ ret = -1;
+ goto out;
+ }
+
+ ret = glfs_process_volfp(fs, fp);
+ if (ret)
+ goto out;
+
+out:
+ return ret;
+}
+
+///////////////////////////////////////////////////////////////////////////////
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_set_xlator_option, 3.4.0)
+int
+pub_glfs_set_xlator_option(struct glfs *fs, const char *xlator, const char *key,
+ const char *value)
+{
+ xlator_cmdline_option_t *option = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ option = GF_CALLOC(1, sizeof(*option), glfs_mt_xlator_cmdline_option_t);
+ if (!option)
+ goto enomem;
+
+ INIT_LIST_HEAD(&option->cmd_args);
+
+ option->volume = gf_strdup(xlator);
+ if (!option->volume)
+ goto enomem;
+ option->key = gf_strdup(key);
+ if (!option->key)
+ goto enomem;
+ option->value = gf_strdup(value);
+ if (!option->value)
+ goto enomem;
+
+ list_add(&option->cmd_args, &fs->ctx->cmd_args.xlator_options);
+
+ __GLFS_EXIT_FS;
+
+ return 0;
+enomem:
+ errno = ENOMEM;
+
+ if (!option) {
+ __GLFS_EXIT_FS;
+ return -1;
+ }
+
+ GF_FREE(option->volume);
+ GF_FREE(option->key);
+ GF_FREE(option->value);
+ GF_FREE(option);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return -1;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_unset_volfile_server, 3.5.1)
+int
+pub_glfs_unset_volfile_server(struct glfs *fs, const char *transport,
+ const char *host, const int port)
+{
+ cmd_args_t *cmd_args = NULL;
+ server_cmdline_t *server = NULL;
+ server_cmdline_t *tmp = NULL;
+ char *transport_val = NULL;
+ int port_val = 0;
+ int ret = -1;
+
+ if (!fs || !host) {
+ errno = EINVAL;
+ return ret;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ cmd_args = &fs->ctx->cmd_args;
+
+ if (transport) {
+ transport_val = gf_strdup(transport);
+ } else {
+ transport_val = gf_strdup(GF_DEFAULT_VOLFILE_TRANSPORT);
+ }
+
+ if (!transport_val) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ if (port) {
+ port_val = port;
+ } else {
+ port_val = GF_DEFAULT_BASE_PORT;
+ }
+
+ list_for_each_entry_safe(server, tmp, &cmd_args->curr_server->list, list)
+ {
+ if (!server->volfile_server || !server->transport)
+ continue;
+ if ((!strcmp(server->volfile_server, host) &&
+ !strcmp(server->transport, transport_val) &&
+ (server->port == port_val))) {
+ list_del(&server->list);
+ ret = 0;
+ goto out;
+ }
+ }
+
+out:
+ GF_FREE(transport_val);
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_set_volfile_server, 3.4.0)
+int
+pub_glfs_set_volfile_server(struct glfs *fs, const char *transport,
+ const char *host, int port)
+{
+ cmd_args_t *cmd_args = NULL;
+ int ret = -1;
+ char *server_host = NULL;
+ char *server_transport = NULL;
+
+ if (!fs || !host) {
+ errno = EINVAL;
+ return ret;
+ }
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ cmd_args = &fs->ctx->cmd_args;
+ cmd_args->max_connect_attempts = 1;
+
+ server_host = gf_strdup(host);
+ if (!server_host) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ if (transport) {
+ /* volfile fetch support over tcp|unix only */
+ if (!strcmp(transport, "tcp") || !strcmp(transport, "unix")) {
+ server_transport = gf_strdup(transport);
+ } else if (!strcmp(transport, "rdma")) {
+ server_transport = gf_strdup(GF_DEFAULT_VOLFILE_TRANSPORT);
+ gf_smsg("glfs", GF_LOG_WARNING, EINVAL, API_MSG_TRANS_RDMA_DEP,
+ NULL);
+ } else {
+ gf_smsg("glfs", GF_LOG_TRACE, EINVAL, API_MSG_TRANS_NOT_SUPPORTED,
+ "transport=%s", transport, NULL);
+ goto out;
+ }
+ } else {
+ server_transport = gf_strdup(GF_DEFAULT_VOLFILE_TRANSPORT);
+ }
+
+ if (!server_transport) {
+ errno = ENOMEM;
+ goto out;
+ }
+
+ if (!port) {
+ port = GF_DEFAULT_BASE_PORT;
+ }
+
+ if (!strcmp(server_transport, "unix")) {
+ port = 0;
+ }
+
+ ret = gf_set_volfile_server_common(cmd_args, server_host, server_transport,
+ port);
+ if (ret) {
+ gf_log("glfs", GF_LOG_ERROR, "failed to set volfile server: %s",
+ strerror(errno));
+ }
+
+out:
+ if (server_host) {
+ GF_FREE(server_host);
+ }
+
+ if (server_transport) {
+ GF_FREE(server_transport);
+ }
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+/* *
+ * Used to free the arguments allocated by glfs_set_volfile_server()
+ */
+static void
+glfs_free_volfile_servers(cmd_args_t *cmd_args)
+{
+ server_cmdline_t *server = NULL;
+ server_cmdline_t *tmp = NULL;
+
+ GF_VALIDATE_OR_GOTO(THIS->name, cmd_args, out);
+
+ list_for_each_entry_safe(server, tmp, &cmd_args->volfile_servers, list)
+ {
+ list_del_init(&server->list);
+ GF_FREE(server->volfile_server);
+ GF_FREE(server->transport);
+ GF_FREE(server);
+ }
+ cmd_args->curr_server = NULL;
+out:
+ return;
+}
+
+static void
+glfs_free_xlator_options(cmd_args_t *cmd_args)
+{
+ xlator_cmdline_option_t *xo = NULL;
+ xlator_cmdline_option_t *tmp_xo = NULL;
+
+ if (!&(cmd_args->xlator_options))
+ return;
+
+ list_for_each_entry_safe(xo, tmp_xo, &cmd_args->xlator_options, cmd_args)
+ {
+ list_del_init(&xo->cmd_args);
+ GF_FREE(xo->volume);
+ GF_FREE(xo->key);
+ GF_FREE(xo->value);
+ GF_FREE(xo);
+ }
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_setfsuid, 3.4.2)
+int
+pub_glfs_setfsuid(uid_t fsuid)
+{
+ /* TODO:
+ * - Set the THIS and restore it appropriately
+ */
+ return syncopctx_setfsuid(&fsuid);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_setfsgid, 3.4.2)
+int
+pub_glfs_setfsgid(gid_t fsgid)
+{
+ /* TODO:
+ * - Set the THIS and restore it appropriately
+ */
+ return syncopctx_setfsgid(&fsgid);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_setfsgroups, 3.4.2)
+int
+pub_glfs_setfsgroups(size_t size, const gid_t *list)
+{
+ /* TODO:
+ * - Set the THIS and restore it appropriately
+ */
+ return syncopctx_setfsgroups(size, list);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_setfsleaseid, 4.0.0)
+int
+pub_glfs_setfsleaseid(glfs_leaseid_t leaseid)
+{
+ int ret = -1;
+ char *gleaseid = NULL;
+
+ gleaseid = gf_leaseid_get();
+ if (gleaseid) {
+ if (leaseid)
+ memcpy(gleaseid, leaseid, LEASE_ID_SIZE);
+ else /* reset leaseid */
+ memset(gleaseid, 0, LEASE_ID_SIZE);
+ ret = 0;
+ }
+
+ if (ret)
+ gf_log("glfs", GF_LOG_ERROR, "failed to set leaseid: %s",
+ strerror(errno));
+ return ret;
+}
+
+int
+get_fop_attr_glfd(dict_t **fop_attr, struct glfs_fd *glfd)
+{
+ char *leaseid = NULL;
+ int ret = 0;
+ gf_boolean_t dict_create = _gf_false;
+
+ leaseid = GF_MALLOC(LEASE_ID_SIZE, gf_common_mt_char);
+ GF_CHECK_ALLOC_AND_LOG("gfapi", leaseid, ret, "lease id alloc failed", out);
+ memcpy(leaseid, glfd->lease_id, LEASE_ID_SIZE);
+ if (*fop_attr == NULL) {
+ *fop_attr = dict_new();
+ dict_create = _gf_true;
+ }
+ GF_CHECK_ALLOC_AND_LOG("gfapi", *fop_attr, ret, "dict_new failed", out);
+ ret = dict_set_bin(*fop_attr, "lease-id", leaseid, LEASE_ID_SIZE);
+out:
+ if (ret) {
+ GF_FREE(leaseid);
+ if (dict_create) {
+ if (*fop_attr)
+ dict_unref(*fop_attr);
+ *fop_attr = NULL;
+ }
+ }
+ return ret;
+}
+
+int
+set_fop_attr_glfd(struct glfs_fd *glfd)
+{
+ char *lease_id = NULL;
+ int ret = -1;
+
+ lease_id = gf_existing_leaseid();
+ if (lease_id) {
+ memcpy(glfd->lease_id, lease_id, LEASE_ID_SIZE);
+ ret = 0;
+ }
+ return ret;
+}
+
+int
+get_fop_attr_thrd_key(dict_t **fop_attr)
+{
+ char *existing_leaseid = NULL, *leaseid = NULL;
+ int ret = 0;
+ gf_boolean_t dict_create = _gf_false;
+
+ existing_leaseid = gf_existing_leaseid();
+ if (existing_leaseid) {
+ leaseid = GF_MALLOC(LEASE_ID_SIZE, gf_common_mt_char);
+ GF_CHECK_ALLOC_AND_LOG("gfapi", leaseid, ret, "lease id alloc failed",
+ out);
+ memcpy(leaseid, existing_leaseid, LEASE_ID_SIZE);
+ if (*fop_attr == NULL) {
+ *fop_attr = dict_new();
+ dict_create = _gf_true;
+ }
+ GF_CHECK_ALLOC_AND_LOG("gfapi", *fop_attr, ret, "dict_new failed", out);
+ ret = dict_set_bin(*fop_attr, "lease-id", leaseid, LEASE_ID_SIZE);
+ }
+
+out:
+ if (ret) {
+ GF_FREE(leaseid);
+ if (dict_create) {
+ if (*fop_attr)
+ dict_unref(*fop_attr);
+ *fop_attr = NULL;
+ }
+ }
+ return ret;
+}
+
+void
+unset_fop_attr(dict_t **fop_attr)
+{
+ char *lease_id = NULL;
+ lease_id = gf_existing_leaseid();
+ if (lease_id)
+ memset(lease_id, 0, LEASE_ID_SIZE);
+ if (*fop_attr) {
+ dict_unref(*fop_attr);
+ *fop_attr = NULL;
+ }
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_from_glfd, 3.4.0)
+struct glfs *
+pub_glfs_from_glfd(struct glfs_fd *glfd)
+{
+ if (glfd == NULL) {
+ errno = EBADF;
+ return NULL;
+ }
+
+ return glfd->fs;
+}
+
+static void
+glfs_fd_destroy(struct glfs_fd *glfd)
+{
+ if (!glfd)
+ return;
+
+ glfs_lock(glfd->fs, _gf_true);
+ {
+ list_del_init(&glfd->openfds);
+ }
+ glfs_unlock(glfd->fs);
+
+ if (glfd->fd) {
+ fd_unref(glfd->fd);
+ glfd->fd = NULL;
+ }
+
+ GF_FREE(glfd->readdirbuf);
+
+ GF_FREE(glfd);
+}
+
+struct glfs_fd *
+glfs_fd_new(struct glfs *fs)
+{
+ struct glfs_fd *glfd = NULL;
+
+ glfd = GF_CALLOC(1, sizeof(*glfd), glfs_mt_glfs_fd_t);
+ if (!glfd)
+ return NULL;
+
+ glfd->fs = fs;
+
+ INIT_LIST_HEAD(&glfd->openfds);
+
+ GF_REF_INIT(glfd, glfs_fd_destroy);
+
+ return glfd;
+}
+
+void
+glfs_fd_bind(struct glfs_fd *glfd)
+{
+ struct glfs *fs = NULL;
+
+ fs = glfd->fs;
+
+ glfs_lock(fs, _gf_true);
+ {
+ list_add_tail(&glfd->openfds, &fs->openfds);
+ }
+ glfs_unlock(fs);
+}
+
+static void *
+glfs_poller(void *data)
+{
+ struct glfs *fs = NULL;
+
+ fs = data;
+
+ gf_event_dispatch(fs->ctx->event_pool);
+
+ return NULL;
+}
+
+static struct glfs *
+glfs_new_fs(const char *volname)
+{
+ struct glfs *fs = NULL;
+
+ fs = CALLOC(1, sizeof(*fs));
+ if (!fs)
+ return NULL;
+
+ INIT_LIST_HEAD(&fs->openfds);
+ INIT_LIST_HEAD(&fs->upcall_list);
+ INIT_LIST_HEAD(&fs->waitq);
+
+ PTHREAD_MUTEX_INIT(&fs->mutex, NULL, fs->pthread_flags, GLFS_INIT_MUTEX,
+ err);
+
+ PTHREAD_COND_INIT(&fs->cond, NULL, fs->pthread_flags, GLFS_INIT_COND, err);
+
+ PTHREAD_COND_INIT(&fs->child_down_cond, NULL, fs->pthread_flags,
+ GLFS_INIT_COND_CHILD, err);
+
+ PTHREAD_MUTEX_INIT(&fs->upcall_list_mutex, NULL, fs->pthread_flags,
+ GLFS_INIT_MUTEX_UPCALL, err);
+
+ fs->volname = strdup(volname);
+ if (!fs->volname)
+ goto err;
+
+ fs->pin_refcnt = 0;
+ fs->upcall_events = 0;
+ fs->up_cbk = NULL;
+ fs->up_data = NULL;
+
+ return fs;
+
+err:
+ glfs_free_from_ctx(fs);
+ return NULL;
+}
+
+extern xlator_t global_xlator;
+extern glusterfs_ctx_t *global_ctx;
+extern pthread_mutex_t global_ctx_mutex;
+
+static int
+glfs_init_global_ctx()
+{
+ int ret = 0;
+ glusterfs_ctx_t *ctx = NULL;
+
+ pthread_mutex_lock(&global_ctx_mutex);
+ {
+ if (global_xlator.ctx)
+ goto unlock;
+
+ ctx = glusterfs_ctx_new();
+ if (!ctx) {
+ ret = -1;
+ goto unlock;
+ }
+
+ gf_log_globals_init(ctx, GF_LOG_NONE);
+
+ global_ctx = ctx;
+ global_xlator.ctx = global_ctx;
+
+ ret = glusterfs_ctx_defaults_init(ctx);
+ if (ret) {
+ global_ctx = NULL;
+ global_xlator.ctx = NULL;
+ goto unlock;
+ }
+ }
+unlock:
+ pthread_mutex_unlock(&global_ctx_mutex);
+
+ if (ret)
+ FREE(ctx);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_new, 3.4.0)
+struct glfs *
+pub_glfs_new(const char *volname)
+{
+ if (!volname) {
+ errno = EINVAL;
+ return NULL;
+ }
+
+ struct glfs *fs = NULL;
+ int i = 0;
+ int ret = -1;
+ glusterfs_ctx_t *ctx = NULL;
+ xlator_t *old_THIS = NULL;
+ char pname[16] = "";
+ char msg[32] = "";
+
+ if (volname[0] == '/' || volname[0] == '-') {
+ if (strncmp(volname, "/snaps/", 7) == 0) {
+ goto label;
+ }
+ errno = EINVAL;
+ return NULL;
+ }
+
+ for (i = 0; i < strlen(volname); i++) {
+ if (!isalnum(volname[i]) && (volname[i] != '_') &&
+ (volname[i] != '-')) {
+ errno = EINVAL;
+ return NULL;
+ }
+ }
+
+label:
+ /*
+ * Do this as soon as possible in case something else depends on
+ * pool allocations.
+ */
+ mem_pools_init();
+
+ fs = glfs_new_fs(volname);
+ if (!fs)
+ goto out;
+
+ ctx = glusterfs_ctx_new();
+ if (!ctx)
+ goto out;
+
+ /* first globals init, for gf_mem_acct_enable_set () */
+
+ ret = glusterfs_globals_init(ctx);
+ if (ret)
+ goto out;
+
+ old_THIS = THIS;
+ ret = glfs_init_global_ctx();
+ if (ret)
+ goto out;
+
+ /* then ctx_defaults_init, for xlator_mem_acct_init(THIS) */
+
+ ret = glusterfs_ctx_defaults_init(ctx);
+ if (ret)
+ goto out;
+
+ fs->ctx = ctx;
+ fs->ctx->process_mode = GF_CLIENT_PROCESS;
+
+ ret = glfs_set_logging(fs, "/dev/null", 0);
+ if (ret)
+ goto out;
+
+ fs->ctx->cmd_args.volfile_id = gf_strdup(volname);
+ if (!(fs->ctx->cmd_args.volfile_id)) {
+ ret = -1;
+ goto out;
+ }
+
+ ret = -1;
+#ifdef GF_LINUX_HOST_OS
+ ret = prctl(PR_GET_NAME, (unsigned long)pname, 0, 0, 0);
+#endif
+ if (ret)
+ fs->ctx->cmd_args.process_name = gf_strdup("gfapi");
+ else {
+ snprintf(msg, sizeof(msg), "gfapi.%s", pname);
+ fs->ctx->cmd_args.process_name = gf_strdup(msg);
+ }
+ ret = 0;
+
+out:
+ if (ret) {
+ if (fs) {
+ glfs_fini(fs);
+ fs = NULL;
+ } else {
+ /* glfs_fini() calls mem_pools_fini() too */
+ mem_pools_fini();
+ }
+ }
+
+ if (old_THIS)
+ THIS = old_THIS;
+
+ return fs;
+}
+
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_new_from_ctx, 3.7.0)
+struct glfs *
+priv_glfs_new_from_ctx(glusterfs_ctx_t *ctx)
+{
+ struct glfs *fs = NULL;
+
+ if (!ctx)
+ goto out;
+
+ fs = glfs_new_fs("");
+ if (!fs)
+ goto out;
+
+ fs->ctx = ctx;
+
+out:
+ return fs;
+}
+
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_free_from_ctx, 3.7.0)
+void
+priv_glfs_free_from_ctx(struct glfs *fs)
+{
+ upcall_entry *u_list = NULL;
+ upcall_entry *tmp = NULL;
+
+ if (!fs)
+ return;
+
+ /* cleanup upcall structures */
+ list_for_each_entry_safe(u_list, tmp, &fs->upcall_list, upcall_list)
+ {
+ list_del_init(&u_list->upcall_list);
+ GF_FREE(u_list->upcall_data.data);
+ GF_FREE(u_list);
+ }
+
+ PTHREAD_MUTEX_DESTROY(&fs->mutex, fs->pthread_flags, GLFS_INIT_MUTEX);
+
+ PTHREAD_COND_DESTROY(&fs->cond, fs->pthread_flags, GLFS_INIT_COND);
+
+ PTHREAD_COND_DESTROY(&fs->child_down_cond, fs->pthread_flags,
+ GLFS_INIT_COND_CHILD);
+
+ PTHREAD_MUTEX_DESTROY(&fs->upcall_list_mutex, fs->pthread_flags,
+ GLFS_INIT_MUTEX_UPCALL);
+
+ if (fs->oldvolfile)
+ FREE(fs->oldvolfile);
+
+ FREE(fs->volname);
+
+ FREE(fs);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_set_volfile, 3.4.0)
+int
+pub_glfs_set_volfile(struct glfs *fs, const char *volfile)
+{
+ cmd_args_t *cmd_args = NULL;
+
+ cmd_args = &fs->ctx->cmd_args;
+
+ if (vol_assigned(cmd_args))
+ return -1;
+
+ cmd_args->volfile = gf_strdup(volfile);
+ if (!cmd_args->volfile)
+ return -1;
+ return 0;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_set_logging, 3.4.0)
+int
+pub_glfs_set_logging(struct glfs *fs, const char *logfile, int loglevel)
+{
+ int ret = -1;
+ char *tmplog = NULL;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ if (!logfile) {
+ ret = gf_set_log_file_path(&fs->ctx->cmd_args, fs->ctx);
+ if (ret)
+ goto out;
+ tmplog = fs->ctx->cmd_args.log_file;
+ } else {
+ tmplog = (char *)logfile;
+ }
+
+ /* finish log set parameters before init */
+ if (loglevel >= 0)
+ gf_log_set_loglevel(fs->ctx, loglevel);
+
+ ret = gf_log_init(fs->ctx, tmplog, NULL);
+ if (ret)
+ goto out;
+
+ ret = gf_log_inject_timer_event(fs->ctx);
+ if (ret)
+ goto out;
+
+out:
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+int
+glfs_init_wait(struct glfs *fs)
+{
+ int ret = -1;
+
+ /* Always a top-down call, use glfs_lock() */
+ glfs_lock(fs, _gf_true);
+ {
+ while (!fs->init)
+ pthread_cond_wait(&fs->cond, &fs->mutex);
+ ret = fs->ret;
+ errno = fs->err;
+ }
+ glfs_unlock(fs);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_init_done, 3.4.0)
+void
+priv_glfs_init_done(struct glfs *fs, int ret)
+{
+ glfs_init_cbk init_cbk;
+
+ if (!fs) {
+ gf_smsg("glfs", GF_LOG_ERROR, EINVAL, API_MSG_GLFS_FSOBJ_NULL, NULL);
+ goto out;
+ }
+
+ init_cbk = fs->init_cbk;
+
+ /* Always a bottom-up call, use mutex_lock() */
+ pthread_mutex_lock(&fs->mutex);
+ {
+ fs->init = 1;
+ fs->ret = ret;
+ fs->err = errno;
+
+ if (!init_cbk)
+ pthread_cond_broadcast(&fs->cond);
+ }
+ pthread_mutex_unlock(&fs->mutex);
+
+ if (init_cbk)
+ init_cbk(fs, ret);
+out:
+ return;
+}
+
+int
+glfs_init_common(struct glfs *fs)
+{
+ int ret = -1;
+
+ ret = create_master(fs);
+ if (ret)
+ return ret;
+
+ ret = gf_thread_create(&fs->poller, NULL, glfs_poller, fs, "glfspoll");
+ if (ret)
+ return ret;
+
+ ret = glfs_volumes_init(fs);
+ if (ret)
+ return ret;
+
+ fs->dev_id = gf_dm_hashfn(fs->volname, strlen(fs->volname));
+ return ret;
+}
+
+int
+glfs_init_async(struct glfs *fs, glfs_init_cbk cbk)
+{
+ int ret = -1;
+
+ if (!fs || !fs->ctx) {
+ gf_smsg("glfs", GF_LOG_ERROR, EINVAL, API_MSG_FS_NOT_INIT, NULL);
+ errno = EINVAL;
+ return ret;
+ }
+
+ fs->init_cbk = cbk;
+
+ ret = glfs_init_common(fs);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_init, 3.4.0)
+int
+pub_glfs_init(struct glfs *fs)
+{
+ int ret = -1;
+
+ DECLARE_OLD_THIS;
+
+ if (!fs || !fs->ctx) {
+ gf_smsg("glfs", GF_LOG_ERROR, EINVAL, API_MSG_FS_NOT_INIT, NULL);
+ errno = EINVAL;
+ return ret;
+ }
+
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ ret = glfs_init_common(fs);
+ if (ret)
+ goto out;
+
+ ret = glfs_init_wait(fs);
+out:
+ __GLFS_EXIT_FS;
+
+ /* Set the initial current working directory to "/" */
+ if (ret >= 0) {
+ ret = glfs_chdir(fs, "/");
+ }
+
+invalid_fs:
+ return ret;
+}
+
+static int
+glusterfs_ctx_destroy(glusterfs_ctx_t *ctx)
+{
+ call_pool_t *pool = NULL;
+ int ret = 0;
+ glusterfs_graph_t *trav_graph = NULL;
+ glusterfs_graph_t *tmp = NULL;
+
+ if (ctx == NULL)
+ return 0;
+
+ if (ctx->cmd_args.curr_server)
+ glfs_free_volfile_servers(&ctx->cmd_args);
+
+ glfs_free_xlator_options(&ctx->cmd_args);
+
+ /* For all the graphs, crawl through the xlator_t structs and free
+ * all its members except for the mem_acct member,
+ * as GF_FREE will be referencing it.
+ */
+ list_for_each_entry_safe(trav_graph, tmp, &ctx->graphs, list)
+ {
+ xlator_tree_free_members(trav_graph->first);
+ }
+
+ /* Free the memory pool */
+ if (ctx->stub_mem_pool)
+ mem_pool_destroy(ctx->stub_mem_pool);
+ if (ctx->dict_pool)
+ mem_pool_destroy(ctx->dict_pool);
+ if (ctx->dict_data_pool)
+ mem_pool_destroy(ctx->dict_data_pool);
+ if (ctx->dict_pair_pool)
+ mem_pool_destroy(ctx->dict_pair_pool);
+ if (ctx->logbuf_pool)
+ mem_pool_destroy(ctx->logbuf_pool);
+
+ pool = ctx->pool;
+ if (pool) {
+ if (pool->frame_mem_pool)
+ mem_pool_destroy(pool->frame_mem_pool);
+ if (pool->stack_mem_pool)
+ mem_pool_destroy(pool->stack_mem_pool);
+ LOCK_DESTROY(&pool->lock);
+ GF_FREE(pool);
+ }
+
+ /* Free the event pool */
+ ret = gf_event_pool_destroy(ctx->event_pool);
+
+ /* Free the iobuf pool */
+ iobuf_pool_destroy(ctx->iobuf_pool);
+
+ GF_FREE(ctx->process_uuid);
+ GF_FREE(ctx->cmd_args.volfile_id);
+ GF_FREE(ctx->cmd_args.process_name);
+
+ LOCK_DESTROY(&ctx->lock);
+ pthread_mutex_destroy(&ctx->notify_lock);
+ pthread_cond_destroy(&ctx->notify_cond);
+
+ /* Free all the graph structs and its containing xlator_t structs
+ * from this point there should be no reference to GF_FREE/GF_CALLOC
+ * as it will try to access mem_acct and the below function would
+ * have freed the same.
+ */
+ list_for_each_entry_safe(trav_graph, tmp, &ctx->graphs, list)
+ {
+ glusterfs_graph_destroy_residual(trav_graph);
+ }
+
+ GF_FREE(ctx->statedump_path);
+ FREE(ctx);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_fini, 3.4.0)
+int
+pub_glfs_fini(struct glfs *fs)
+{
+ int ret = -1;
+ int countdown = 100;
+ xlator_t *subvol = NULL;
+ glusterfs_ctx_t *ctx = NULL;
+ glusterfs_graph_t *graph = NULL;
+ call_pool_t *call_pool = NULL;
+ int fs_init = 0;
+ int err = -1;
+ struct synctask *waittask = NULL;
+
+ DECLARE_OLD_THIS;
+
+ if (!fs) {
+ errno = EINVAL;
+ goto invalid_fs;
+ }
+
+ ctx = fs->ctx;
+ if (!ctx) {
+ goto free_fs;
+ }
+
+ THIS = fs->ctx->master;
+
+ if (ctx->mgmt) {
+ rpc_clnt_disable(ctx->mgmt);
+ }
+
+ call_pool = fs->ctx->pool;
+
+ /* Wake up any suspended synctasks */
+ while (!list_empty(&fs->waitq)) {
+ waittask = list_entry(fs->waitq.next, struct synctask, waitq);
+ list_del_init(&waittask->waitq);
+ synctask_wake(waittask);
+ }
+
+ while (countdown--) {
+ /* give some time for background frames to finish */
+ pthread_mutex_lock(&fs->mutex);
+ {
+ /* Do we need to increase countdown? */
+ if ((!call_pool->cnt) && (!fs->pin_refcnt)) {
+ gf_msg_trace("glfs", 0,
+ "call_pool_cnt - %" PRId64
+ ","
+ "pin_refcnt - %d",
+ call_pool->cnt, fs->pin_refcnt);
+
+ ctx->cleanup_started = 1;
+ pthread_mutex_unlock(&fs->mutex);
+ break;
+ }
+ }
+ pthread_mutex_unlock(&fs->mutex);
+ gf_nanosleep(100000 * GF_US_IN_NS);
+ }
+
+ /* leaked frames may exist, we ignore */
+
+ /*We deem glfs_fini as successful if there are no pending frames in the call
+ *pool*/
+ ret = (call_pool->cnt == 0) ? 0 : -1;
+
+ pthread_mutex_lock(&fs->mutex);
+ {
+ fs_init = fs->init;
+ }
+ pthread_mutex_unlock(&fs->mutex);
+
+ if (fs_init != 0) {
+ subvol = glfs_active_subvol(fs);
+ if (subvol) {
+ /* PARENT_DOWN within glfs_subvol_done() is issued
+ only on graph switch (new graph should activiate
+ and decrement the extra @winds count taken in
+ glfs_graph_setup()
+
+ Since we are explicitly destroying,
+ PARENT_DOWN is necessary
+ */
+ xlator_notify(subvol, GF_EVENT_PARENT_DOWN, subvol, 0);
+ /* Here we wait for GF_EVENT_CHILD_DOWN before exiting,
+ in case of asynchrnous cleanup
+ */
+ graph = subvol->graph;
+ err = pthread_mutex_lock(&fs->mutex);
+ if (err != 0) {
+ gf_smsg("glfs", GF_LOG_ERROR, err, API_MSG_FSMUTEX_LOCK_FAILED,
+ "error=%s", strerror(err), NULL);
+ goto fail;
+ }
+ /* check and wait for CHILD_DOWN for active subvol*/
+ {
+ while (graph->used) {
+ err = pthread_cond_wait(&fs->child_down_cond, &fs->mutex);
+ if (err != 0)
+ gf_smsg("glfs", GF_LOG_INFO, err,
+ API_MSG_COND_WAIT_FAILED, "name=%s",
+ subvol->name, "err=%s", strerror(err), NULL);
+ }
+ }
+
+ err = pthread_mutex_unlock(&fs->mutex);
+ if (err != 0) {
+ gf_smsg("glfs", GF_LOG_ERROR, err,
+ API_MSG_FSMUTEX_UNLOCK_FAILED, "error=%s",
+ strerror(err), NULL);
+ goto fail;
+ }
+ }
+ glfs_subvol_done(fs, subvol);
+ }
+
+ ctx->cleanup_started = 1;
+
+ if (fs_init != 0) {
+ /* Destroy all the inode tables of all the graphs.
+ * NOTE:
+ * - inode objects should be destroyed before calling fini()
+ * of each xlator, as fini() and forget() of the xlators
+ * can share few common locks or data structures, calling
+ * fini first might destroy those required by forget
+ * ( eg: in quick-read)
+ * - The call to inode_table_destroy_all is not required when
+ * the cleanup during graph switch is implemented to perform
+ * inode table destroy.
+ */
+ inode_table_destroy_all(ctx);
+
+ /* Call fini() of all the xlators in the active graph
+ * NOTE:
+ * - xlator fini() should be called before destroying any of
+ * the threads. (eg: fini() in protocol-client uses timer
+ * thread) */
+ glusterfs_graph_deactivate(ctx->active);
+
+ /* Join the syncenv_processor threads and cleanup
+ * syncenv resources*/
+ syncenv_destroy(ctx->env);
+
+ /* Join the poller thread */
+ if (gf_event_dispatch_destroy(ctx->event_pool) < 0)
+ ret = -1;
+ }
+
+ /* Avoid dispatching events to mgmt after freed,
+ * unreference mgmt after the event_dispatch_destroy */
+ if (ctx->mgmt) {
+ rpc_clnt_unref(ctx->mgmt);
+ ctx->mgmt = NULL;
+ }
+
+ /* log infra has to be brought down before destroying
+ * timer registry, as logging uses timer infra
+ */
+ if (gf_log_fini(ctx) != 0)
+ ret = -1;
+
+ /* Join the timer thread */
+ if (fs_init != 0) {
+ gf_timer_registry_destroy(ctx);
+ }
+
+ /* Destroy the context and the global pools */
+ if (glusterfs_ctx_destroy(ctx) != 0)
+ ret = -1;
+
+free_fs:
+ glfs_free_from_ctx(fs);
+
+ /*
+ * Do this as late as possible in case anything else has (or
+ * grows) a dependency on mem-pool allocations.
+ */
+ mem_pools_fini();
+
+fail:
+ if (!ret)
+ ret = err;
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_get_volfile, 3.6.0)
+ssize_t
+pub_glfs_get_volfile(struct glfs *fs, void *buf, size_t len)
+{
+ ssize_t res = -1;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ glfs_lock(fs, _gf_true);
+ if (len >= fs->oldvollen) {
+ gf_msg_trace("glfs", 0, "copying %zu to %p", len, buf);
+ memcpy(buf, fs->oldvolfile, len);
+ res = len;
+ } else {
+ res = len - fs->oldvollen;
+ gf_msg_trace("glfs", 0, "buffer is %zd too short", -res);
+ }
+ glfs_unlock(fs);
+
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return res;
+}
+
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_ipc, 3.12.0)
+int
+priv_glfs_ipc(struct glfs *fs, int opcode, void *xd_in, void **xd_out)
+{
+ xlator_t *subvol = NULL;
+ int ret = -1;
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ subvol = glfs_active_subvol(fs);
+ if (!subvol) {
+ ret = -1;
+ errno = EIO;
+ goto out;
+ }
+
+ ret = syncop_ipc(subvol, opcode, (dict_t *)xd_in, (dict_t **)xd_out);
+ DECODE_SYNCOP_ERR(ret);
+
+out:
+ glfs_subvol_done(fs, subvol);
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PRIVATE_DEFAULT(glfs_setfspid, 6.1)
+int
+priv_glfs_setfspid(struct glfs *fs, pid_t pid)
+{
+ cmd_args_t *cmd_args = NULL;
+ int ret = 0;
+
+ cmd_args = &fs->ctx->cmd_args;
+ cmd_args->client_pid = pid;
+ cmd_args->client_pid_set = 1;
+ ret = syncopctx_setfspid(&pid);
+
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_free, 3.7.16)
+void
+pub_glfs_free(void *ptr)
+{
+ GLFS_FREE(ptr);
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_get_fs, 3.7.16)
+struct glfs *
+pub_glfs_upcall_get_fs(struct glfs_upcall *arg)
+{
+ return arg->fs;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_get_reason, 3.7.16)
+enum glfs_upcall_reason
+pub_glfs_upcall_get_reason(struct glfs_upcall *arg)
+{
+ return arg->reason;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_get_event, 3.7.16)
+void *
+pub_glfs_upcall_get_event(struct glfs_upcall *arg)
+{
+ return arg->event;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_inode_get_object, 3.7.16)
+struct glfs_object *
+pub_glfs_upcall_inode_get_object(struct glfs_upcall_inode *arg)
+{
+ return arg->object;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_inode_get_flags, 3.7.16)
+uint64_t
+pub_glfs_upcall_inode_get_flags(struct glfs_upcall_inode *arg)
+{
+ return arg->flags;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_inode_get_stat, 3.7.16)
+struct stat *
+pub_glfs_upcall_inode_get_stat(struct glfs_upcall_inode *arg)
+{
+ return &arg->buf;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_inode_get_expire, 3.7.16)
+uint64_t
+pub_glfs_upcall_inode_get_expire(struct glfs_upcall_inode *arg)
+{
+ return arg->expire_time_attr;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_inode_get_pobject, 3.7.16)
+struct glfs_object *
+pub_glfs_upcall_inode_get_pobject(struct glfs_upcall_inode *arg)
+{
+ return arg->p_object;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_inode_get_pstat, 3.7.16)
+struct stat *
+pub_glfs_upcall_inode_get_pstat(struct glfs_upcall_inode *arg)
+{
+ return &arg->p_buf;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_inode_get_oldpobject, 3.7.16)
+struct glfs_object *
+pub_glfs_upcall_inode_get_oldpobject(struct glfs_upcall_inode *arg)
+{
+ return arg->oldp_object;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_inode_get_oldpstat, 3.7.16)
+struct stat *
+pub_glfs_upcall_inode_get_oldpstat(struct glfs_upcall_inode *arg)
+{
+ return &arg->oldp_buf;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_lease_get_object, 4.1.6)
+struct glfs_object *
+pub_glfs_upcall_lease_get_object(struct glfs_upcall_lease *arg)
+{
+ return arg->object;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_lease_get_lease_type, 4.1.6)
+uint32_t
+pub_glfs_upcall_lease_get_lease_type(struct glfs_upcall_lease *arg)
+{
+ return arg->lease_type;
+}
+
+/* definitions of the GLFS_SYSRQ_* chars are in glfs.h */
+static struct glfs_sysrq_help {
+ char sysrq;
+ char *msg;
+} glfs_sysrq_help[] = {{GLFS_SYSRQ_HELP, "(H)elp"},
+ {GLFS_SYSRQ_STATEDUMP, "(S)tatedump"},
+ {0, NULL}};
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_sysrq, 3.10.0)
+int
+pub_glfs_sysrq(struct glfs *fs, char sysrq)
+{
+ glusterfs_ctx_t *ctx = NULL;
+ int ret = 0;
+ int msg_len;
+ char msg[1024] = {
+ 0,
+ }; /* should not exceed 1024 chars */
+
+ if (!fs || !fs->ctx) {
+ ret = -1;
+ errno = EINVAL;
+ goto out;
+ }
+
+ ctx = fs->ctx;
+
+ switch (sysrq) {
+ case GLFS_SYSRQ_HELP: {
+ struct glfs_sysrq_help *usage = NULL;
+
+ for (usage = glfs_sysrq_help; usage->sysrq; usage++) {
+ msg_len = strlen(msg);
+ snprintf(msg + msg_len, /* append to msg */
+ sizeof(msg) - msg_len - 2,
+ /* - 2 for the " " + terminating \0 */
+ " %s", usage->msg);
+ }
+
+ /* not really an 'error', but make sure it gets logged */
+ gf_log("glfs", GF_LOG_ERROR, "available events: %s", msg);
+
+ break;
+ }
+ case GLFS_SYSRQ_STATEDUMP:
+ gf_proc_dump_info(SIGUSR1, ctx);
+ break;
+ default:
+ gf_smsg("glfs", GF_LOG_ERROR, ENOTSUP, API_MSG_INVALID_SYSRQ,
+ "sysrq=%c", sysrq, NULL);
+ errno = ENOTSUP;
+ ret = -1;
+ }
+out:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_register, 3.13.0)
+int
+pub_glfs_upcall_register(struct glfs *fs, uint32_t event_list,
+ glfs_upcall_cbk cbk, void *data)
+{
+ int ret = 0;
+
+ /* list of supported upcall events */
+ uint32_t up_events = (GLFS_EVENT_INODE_INVALIDATE |
+ GLFS_EVENT_RECALL_LEASE);
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ GF_VALIDATE_OR_GOTO(THIS->name, cbk, out);
+
+ /* Event list should be either GLFS_EVENT_ANY
+ * or list of supported individual events (up_events)
+ */
+ if ((event_list != GLFS_EVENT_ANY) && (event_list & ~up_events)) {
+ errno = EINVAL;
+ ret = -1;
+ gf_smsg(THIS->name, GF_LOG_ERROR, errno, API_MSG_INVALID_ARG,
+ "event_list=(0x%08x)", event_list, NULL);
+ goto out;
+ }
+
+ /* in case other thread does unregister */
+ pthread_mutex_lock(&fs->mutex);
+ {
+ if (event_list & GLFS_EVENT_INODE_INVALIDATE) {
+ /* @todo: Check if features.cache-invalidation is
+ * enabled.
+ */
+ fs->upcall_events |= GF_UPCALL_CACHE_INVALIDATION;
+ ret |= GLFS_EVENT_INODE_INVALIDATE;
+ }
+ if (event_list & GLFS_EVENT_RECALL_LEASE) {
+ /* @todo: Check if features.leases is enabled */
+ fs->upcall_events |= GF_UPCALL_RECALL_LEASE;
+ ret |= GLFS_EVENT_RECALL_LEASE;
+ }
+ /* Override cbk function if existing */
+ fs->up_cbk = cbk;
+ fs->up_data = data;
+ fs->cache_upcalls = _gf_true;
+ }
+ pthread_mutex_unlock(&fs->mutex);
+
+out:
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_upcall_unregister, 3.13.0)
+int
+pub_glfs_upcall_unregister(struct glfs *fs, uint32_t event_list)
+{
+ int ret = 0;
+ /* list of supported upcall events */
+ uint32_t up_events = (GLFS_EVENT_INODE_INVALIDATE |
+ GLFS_EVENT_RECALL_LEASE);
+
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ /* Event list should be either GLFS_EVENT_ANY
+ * or list of supported individual events (up_events)
+ */
+ if ((event_list != GLFS_EVENT_ANY) && (event_list & ~up_events)) {
+ errno = EINVAL;
+ ret = -1;
+ gf_smsg(THIS->name, GF_LOG_ERROR, errno, API_MSG_INVALID_ARG,
+ "event_list=(0x%08x)", event_list, NULL);
+ goto out;
+ }
+
+ pthread_mutex_lock(&fs->mutex);
+ {
+ /* We already checked if event_list contains list of supported
+ * upcall events. No other specific checks needed as of now for
+ * unregister */
+ fs->upcall_events &= ~(event_list);
+ ret |= ((event_list == GLFS_EVENT_ANY) ? up_events : event_list);
+
+ /* If there are no upcall events registered, reset cbk */
+ if (fs->upcall_events == 0) {
+ fs->up_cbk = NULL;
+ fs->up_data = NULL;
+ fs->cache_upcalls = _gf_false;
+ }
+ }
+ pthread_mutex_unlock(&fs->mutex);
+
+out:
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return ret;
+}
+
+GFAPI_SYMVER_PUBLIC_DEFAULT(glfs_set_statedump_path, 7.0)
+int
+pub_glfs_set_statedump_path(struct glfs *fs, const char *path)
+{
+ struct stat st;
+ int ret;
+ DECLARE_OLD_THIS;
+ __GLFS_ENTRY_VALIDATE_FS(fs, invalid_fs);
+
+ if (!path) {
+ gf_log("glfs", GF_LOG_ERROR, "path is NULL");
+ errno = EINVAL;
+ goto err;
+ }
+
+ /* If path is not present OR, if it is directory AND has enough permission
+ * to create files, then proceed */
+ ret = sys_stat(path, &st);
+ if (ret && errno != ENOENT) {
+ gf_log("glfs", GF_LOG_ERROR, "%s: not a valid path (%s)", path,
+ strerror(errno));
+ errno = EINVAL;
+ goto err;
+ }
+
+ if (!ret) {
+ /* file is present, now check other things */
+ if (!S_ISDIR(st.st_mode)) {
+ gf_log("glfs", GF_LOG_ERROR, "%s: path is not directory", path);
+ errno = EINVAL;
+ goto err;
+ }
+ if (sys_access(path, W_OK | X_OK) < 0) {
+ gf_log("glfs", GF_LOG_ERROR,
+ "%s: path doesn't have write permission", path);
+ errno = EPERM;
+ goto err;
+ }
+ }
+
+ /* If set, it needs to be freed, so we don't have leak */
+ GF_FREE(fs->ctx->statedump_path);
+
+ fs->ctx->statedump_path = gf_strdup(path);
+ if (!fs->ctx->statedump_path) {
+ gf_log("glfs", GF_LOG_ERROR,
+ "%s: failed to set statedump path, no memory", path);
+ errno = ENOMEM;
+ goto err;
+ }
+
+ __GLFS_EXIT_FS;
+
+ return 0;
+err:
+ __GLFS_EXIT_FS;
+
+invalid_fs:
+ return -1;
+}
diff --git a/api/src/glfs.h b/api/src/glfs.h
new file mode 100644
index 00000000000..279d11d58ee
--- /dev/null
+++ b/api/src/glfs.h
@@ -0,0 +1,1485 @@
+/*
+ Copyright (c) 2012-2018 Red Hat, Inc. <http://www.redhat.com>
+ This file is part of GlusterFS.
+
+ This file is licensed to you under your choice of the GNU Lesser
+ General Public License, version 3 or any later version (LGPLv3 or
+ later), or the GNU General Public License, version 2 (GPLv2), in all
+ cases as published by the Free Software Foundation.
+*/
+
+#ifndef _GLFS_H
+#define _GLFS_H
+
+/*
+ Enforce the following flags as libgfapi is built
+ with them, and we want programs linking against them to also
+ be built with these flags. This is necessary as it affects
+ some of the structures defined in libc headers (like struct stat)
+ and those definitions need to be consistently compiled in
+ both the library and the application.
+*/
+
+/* Values for valid flags to be used when using XXXsetattr, to set multiple
+ attribute values passed via the related stat structure.
+ */
+
+#define GFAPI_SET_ATTR_MODE 0x1
+#define GFAPI_SET_ATTR_UID 0x2
+#define GFAPI_SET_ATTR_GID 0x4
+#define GFAPI_SET_ATTR_SIZE 0x8
+#define GFAPI_SET_ATTR_ATIME 0x10
+#define GFAPI_SET_ATTR_MTIME 0x20
+
+#ifndef _FILE_OFFSET_BITS
+#define _FILE_OFFSET_BITS 64
+#endif
+
+#ifndef __USE_FILE_OFFSET64
+#define __USE_FILE_OFFSET64
+#endif
+
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include <sys/cdefs.h>
+#include <dirent.h>
+#include <sys/statvfs.h>
+#include <stdint.h>
+#include <sys/time.h>
+
+/*
+ * For off64_t to be defined, we need both
+ * __USE_LARGEFILE64 to be true and __off64_t_defnined to be
+ * false. But, making __USE_LARGEFILE64 true causes other issues
+ * such as redinition of stat and fstat to stat64 and fstat64
+ * respectively which again causes compilation issues.
+ * Without off64_t being defined, this will not compile as
+ * copy_file_range uses off64_t. Hence define it here. First
+ * check whether __off64_t_defined is true or not. <unistd.h>
+ * sets that flag when it defines off64_t. If __off64_t_defined
+ * is false and __USE_FILE_OFFSET64 is true, then go on to define
+ * off64_t using __off64_t.
+ */
+#ifndef GF_BSD_HOST_OS
+#if defined(__USE_FILE_OFFSET64) && !defined(__off64_t_defined)
+typedef __off64_t off64_t;
+#endif /* defined(__USE_FILE_OFFSET64) && !defined(__off64_t_defined) */
+#else
+#include <stdio.h>
+#ifndef _OFF64_T_DECLARED
+/*
+ * Including <stdio.h> (done above) should actually define
+ * _OFF64_T_DECLARED with off64_t data type being available
+ * for consumption. But, off64_t data type is not recognizable
+ * for FreeBSD versions less than 11. Hence, int64_t is typedefed
+ * to off64_t.
+ */
+#define _OFF64_T_DECLARED
+typedef int64_t off64_t;
+#endif /* _OFF64_T_DECLARED */
+#endif /* GF_BSD_HOST_OS */
+
+#if defined(HAVE_SYS_ACL_H) || (defined(USE_POSIX_ACLS) && USE_POSIX_ACLS)
+#include <sys/acl.h>
+#else
+typedef void *acl_t;
+typedef int acl_type_t;
+#endif
+
+/* Portability non glibc c++ build systems */
+#ifndef __THROW
+#if defined __cplusplus
+#define __THROW throw()
+#else
+#define __THROW
+#endif
+#endif
+
+#ifndef GF_DARWIN_HOST_OS
+#define GFAPI_PUBLIC(sym, ver) /**/
+#define GFAPI_PRIVATE(sym, ver) /**/
+#else
+#define GFAPI_PUBLIC(sym, ver) __asm("_" __STRING(sym) "$GFAPI_" __STRING(ver))
+#define GFAPI_PRIVATE(sym, ver) \
+ __asm("_" __STRING(sym) "$GFAPI_PRIVATE_" __STRING(ver))
+#endif
+
+__BEGIN_DECLS
+
+/* The filesystem object. One object per 'virtual mount' */
+struct glfs;
+typedef struct glfs glfs_t;
+
+/*
+ SYNOPSIS
+
+ glfs_new: Create a new 'virtual mount' object.
+
+ DESCRIPTION
+
+ This is most likely the very first function you will use. This function
+ will create a new glfs_t (virtual mount) object in memory.
+
+ On this newly created glfs_t, you need to be either set a volfile path
+ (glfs_set_volfile) or a volfile server (glfs_set_volfile_server).
+
+ The glfs_t object needs to be initialized with glfs_init() before you
+ can start issuing file operations on it.
+
+ PARAMETERS
+
+ @volname: Name of the volume. This identifies the server-side volume and
+ the fetched volfile (equivalent of --volfile-id command line
+ parameter to glusterfsd). When used with glfs_set_volfile() the
+ @volname has no effect (except for appearing in log messages).
+
+ RETURN VALUES
+
+ NULL : Out of memory condition.
+ Others : Pointer to the newly created glfs_t virtual mount object.
+
+*/
+
+glfs_t *
+glfs_new(const char *volname) __THROW GFAPI_PUBLIC(glfs_new, 3.4.0);
+
+/*
+ SYNOPSIS
+
+ glfs_set_volfile: Specify the path to the volume specification file.
+
+ DESCRIPTION
+
+ If you are using a static volume specification file (without dynamic
+ volume management abilities from the CLI), then specify the path to
+ the volume specification file.
+
+ This is incompatible with glfs_set_volfile_server().
+
+ PARAMETERS
+
+ @fs: The 'virtual mount' object to be configured with the volume
+ specification file.
+
+ @volfile: Path to the locally available volume specification file.
+
+ RETURN VALUES
+
+ 0 : Success.
+ -1 : Failure. @errno will be set with the type of failure.
+
+*/
+
+int
+glfs_set_volfile(glfs_t *fs, const char *volfile) __THROW
+ GFAPI_PUBLIC(glfs_set_volfile, 3.4.0);
+
+/*
+ SYNOPSIS
+
+ glfs_set_volfile_server: Specify the list of addresses for management server.
+
+ DESCRIPTION
+
+ This function specifies the list of addresses for the management server
+ (glusterd) to connect, and establish the volume configuration. The @volname
+ parameter passed to glfs_new() is the volume which will be virtually
+ mounted as the glfs_t object. All operations performed by the CLI at
+ the management server will automatically be reflected in the 'virtual
+ mount' object as it maintains a connection to glusterd and polls on
+ configuration change notifications.
+
+ This is incompatible with glfs_set_volfile().
+
+ PARAMETERS
+
+ @fs: The 'virtual mount' object to be configured with the volume
+ specification file.
+
+ @transport: String specifying the transport used to connect to the
+ management daemon. Specifying NULL will result in the
+ usage of the default (tcp) transport type. Permitted
+ values are "tcp" or "unix".
+
+ @host: String specifying the address where to find the management daemon.
+ Socket path, while using Unix domain socket as transport type.
+ This would either be
+ - FQDN (e.g : "storage01.company.com") or
+ - ASCII (e.g : "192.168.22.1") or
+ - Socket path (e.g : "/var/run/glusterd.socket")
+
+ NOTE: This API is special, multiple calls to this function with different
+ volfile servers, port or transport-type would create a list of volfile
+ servers which would be polled during `volfile_fetch_attempts()`
+
+ @port: The TCP port number where gluster management daemon is listening.
+ Specifying 0 uses the default port number GF_DEFAULT_BASE_PORT.
+ This parameter is unused if you are using a UNIX domain socket.
+
+ RETURN VALUES
+
+ 0 : Success.
+ -1 : Failure. @errno will be set with the type of failure.
+
+*/
+
+int
+glfs_set_volfile_server(glfs_t *fs, const char *transport, const char *host,
+ int port) __THROW
+ GFAPI_PUBLIC(glfs_set_volfile_server, 3.4.0);
+
+int
+glfs_unset_volfile_server(glfs_t *fs, const char *transport, const char *host,
+ int port) __THROW
+ GFAPI_PUBLIC(glfs_unset_volfile_server, 3.5.1);
+/*
+ SYNOPSIS
+
+ glfs_set_logging: Specify logging parameters.
+
+ DESCRIPTION
+
+ This function specifies logging parameters for the virtual mount.
+ Default log file is /dev/null.
+
+ PARAMETERS
+
+ @fs: The 'virtual mount' object to be configured with the logging parameters.
+
+ @logfile: The logfile to be used for logging. Will be created if it does not
+ already exist (provided system permissions allow). If NULL, a new
+ logfile will be created in default log directory associated with
+ the glusterfs installation.
+
+ @loglevel: Numerical value specifying the degree of verbosity. Higher the
+ value, more verbose the logging.
+
+ RETURN VALUES
+
+ 0 : Success.
+ -1 : Failure. @errno will be set with the type of failure.
+
+*/
+
+int
+glfs_set_logging(glfs_t *fs, const char *logfile, int loglevel) __THROW
+ GFAPI_PUBLIC(glfs_set_logging, 3.4.0);
+
+/*
+ SYNOPSIS
+
+ glfs_init: Initialize the 'virtual mount'
+
+ DESCRIPTION
+
+ This function initializes the glfs_t object. This consists of many steps:
+ - Spawn a poll-loop thread.
+ - Establish connection to management daemon and receive volume specification.
+ - Construct translator graph and initialize graph.
+ - Wait for initialization (connecting to all bricks) to complete.
+
+ PARAMETERS
+
+ @fs: The 'virtual mount' object to be initialized.
+
+ RETURN VALUES
+
+ 0 : Success.
+ -1 : Failure. @errno will be set with the type of failure.
+
+*/
+
+int
+glfs_init(glfs_t *fs) __THROW GFAPI_PUBLIC(glfs_init, 3.4.0);
+
+/*
+ SYNOPSIS
+
+ glfs_fini: Cleanup and destroy the 'virtual mount'
+
+ DESCRIPTION
+
+ This function attempts to gracefully destroy glfs_t object. An attempt is
+ made to wait for all background processing to complete before returning.
+
+ glfs_fini() must be called after all operations on glfs_t is finished.
+
+ IMPORTANT
+
+ IT IS NECESSARY TO CALL glfs_fini() ON ALL THE INITIALIZED glfs_t
+ OBJECTS BEFORE TERMINATING THE PROGRAM. THERE MAY BE CACHED AND
+ UNWRITTEN / INCOMPLETE OPERATIONS STILL IN PROGRESS EVEN THOUGH THE
+ API CALLS HAVE RETURNED. glfs_fini() WILL WAIT FOR BACKGROUND OPERATIONS
+ TO COMPLETE BEFORE RETURNING, THEREBY MAKING IT SAFE FOR THE PROGRAM TO
+ EXIT.
+
+ PARAMETERS
+
+ @fs: The 'virtual mount' object to be destroyed.
+
+ RETURN VALUES
+
+ 0 : Success.
+*/
+
+int
+glfs_fini(glfs_t *fs) __THROW GFAPI_PUBLIC(glfs_fini, 3.4.0);
+
+/*
+ SYNOPSIS
+
+ glfs_getvol: Get the volfile associated with a 'virtual mount'
+
+ DESCRIPTION
+
+ Sometimes it's useful e.g. for scripts to see the volfile, so that they
+ can parse it and find subvolumes to do things like split-brain resolution
+ or custom layouts. The API here was specifically intended to make access
+ e.g. from Python as simple as possible.
+
+ Note that the volume must be started (not necessarily mounted) for this
+ to work.
+
+ PARAMETERS
+
+ @fs: The 'virtual mount' object for which a volfile is desired
+ @buf: Pointer to a place for the volfile length to be stored
+ @len: Length of @buf
+
+ RETURN VALUES
+
+ >0: filled N bytes of buffer
+ 0: no volfile available
+ <0: volfile length exceeds @len by N bytes (@buf unchanged)
+*/
+
+ssize_t
+glfs_get_volfile(glfs_t *fs, void *buf, size_t len) __THROW
+ GFAPI_PUBLIC(glfs_get_volfile, 3.6.0);
+
+/*
+ SYNOPSIS
+
+ glfs_get_volumeid: Copy the Volume UUID stored in the glfs object fs.
+
+ DESCRIPTION
+
+ This function when invoked for the first time sends RPC call to the
+ the management server (glusterd) to fetch volume uuid and stores it
+ in the glusterfs_context linked to the glfs object fs which can be used
+ in the subsequent calls. Later it parses that UUID to convert it from
+ canonical string format into an opaque byte array and copy it into
+ the volid array. In case if either of the input parameters, volid or
+ size, is NULL, number of bytes required to copy the volume UUID is returned.
+
+ PARAMETERS
+
+ @fs: The 'virtual mount' object to be used to retrieve and store
+ volume's UUID.
+ @volid: Pointer to a place for the volume UUID to be stored
+ @size: Length of @volid
+
+ RETURN VALUES
+
+ -1 : Failure. @errno will be set with the type of failure.
+ Others : length of the volume UUID stored.
+*/
+
+int
+glfs_get_volumeid(glfs_t *fs, char *volid, size_t size) __THROW
+ GFAPI_PUBLIC(glfs_get_volumeid, 3.5.0);
+
+/*
+ * FILE OPERATION
+ *
+ * What follows are filesystem operations performed on the
+ * 'virtual mount'. The calls here are kept as close to
+ * the POSIX system calls as possible.
+ *
+ * Notes:
+ *
+ * - All paths specified, even if absolute, are relative to the
+ * root of the virtual mount and not the system root (/).
+ *
+ */
+
+/* The file descriptor object. One per open file/directory. */
+
+struct glfs_fd;
+typedef struct glfs_fd glfs_fd_t;
+
+/*
+ * Mask for request/result items in the struct glfs_stat.
+ *
+ * Query request/result mask for glfs_stat() (family of functions) and
+ * struct glfs_stat::glfs_st_mask.
+ *
+ * These bits should be set in the mask argument of glfs_stat() (family of
+ * functions) to request particular items when calling glfs_stat().
+ *
+ * NOTE: Lower order 32 bits are used to reflect statx(2) bits. For Gluster
+ * specific attrs/extensions, use higher order 32 bits.
+ *
+ */
+#define GLFS_STAT_TYPE 0x0000000000000001U /* Want/got stx_mode & S_IFMT */
+#define GLFS_STAT_MODE 0x0000000000000002U /* Want/got stx_mode & ~S_IFMT */
+#define GLFS_STAT_NLINK 0x0000000000000004U /* Want/got stx_nlink */
+#define GLFS_STAT_UID 0x0000000000000008U /* Want/got stx_uid */
+#define GLFS_STAT_GID 0x0000000000000010U /* Want/got stx_gid */
+#define GLFS_STAT_ATIME 0x0000000000000020U /* Want/got stx_atime */
+#define GLFS_STAT_MTIME 0x0000000000000040U /* Want/got stx_mtime */
+#define GLFS_STAT_CTIME 0x0000000000000080U /* Want/got stx_ctime */
+#define GLFS_STAT_INO 0x0000000000000100U /* Want/got stx_ino */
+#define GLFS_STAT_SIZE 0x0000000000000200U /* Want/got stx_size */
+#define GLFS_STAT_BLOCKS 0x0000000000000400U /* Want/got stx_blocks */
+#define GLFS_STAT_BASIC_STATS \
+ 0x00000000000007ffU /* Items in the normal stat struct */
+#define GLFS_STAT_BTIME 0x0000000000000800U /* Want/got stx_btime */
+#define GLFS_STAT_ALL 0x0000000000000fffU /* All currently supported flags */
+#define GLFS_STAT_RESERVED \
+ 0x8000000000000000U /* Reserved to denote future expansion */
+
+/* Macros for checking validity of struct glfs_stat members.*/
+#define GLFS_STAT_TYPE_VALID(stmask) (stmask & GLFS_STAT_TYPE)
+#define GLFS_STAT_MODE_VALID(stmask) (stmask & GLFS_STAT_MODE)
+#define GLFS_STAT_NLINK_VALID(stmask) (stmask & GLFS_STAT_NLINK)
+#define GLFS_STAT_UID_VALID(stmask) (stmask & GLFS_STAT_UID)
+#define GLFS_STAT_GID_VALID(stmask) (stmask & GLFS_STAT_GID)
+#define GLFS_STAT_ATIME_VALID(stmask) (stmask & GLFS_STAT_ATIME)
+#define GLFS_STAT_MTIME_VALID(stmask) (stmask & GLFS_STAT_MTIME)
+#define GLFS_STAT_CTIME_VALID(stmask) (stmask & GLFS_STAT_CTIME)
+#define GLFS_STAT_INO_VALID(stmask) (stmask & GLFS_STAT_INO)
+#define GLFS_STAT_SIZE_VALID(stmask) (stmask & GLFS_STAT_SIZE)
+#define GLFS_STAT_BLOCKS_VALID(stmask) (stmask & GLFS_STAT_BLOCKS)
+#define GLFS_STAT_BTIME_VALID(stmask) (stmask & GLFS_STAT_BTIME)
+#define GLFS_STAT_GFID_VALID(stmask) (stmask & GLFS_STAT_GFID)
+
+/*
+ * Attributes to be found in glfs_st_attributes and masked in
+ * glfs_st_attributes_mask.
+ *
+ * These give information about the features or the state of a file that might
+ * be of use to programs.
+ *
+ * NOTE: Lower order 32 bits are used to reflect statx(2) attribute bits. For
+ * Gluster specific attrs, use higher order 32 bits.
+ *
+ * NOTE: We do not support any file attributes or state as yet!
+ */
+#define GLFS_STAT_ATTR_RESERVED \
+ 0x8000000000000000U /* Reserved to denote future expansion */
+
+/* Extended file attribute structure.
+ *
+ * The caller passes a mask of what they're specifically interested in as a
+ * parameter to glfs_stat(). What glfs_stat() actually got will be indicated
+ * in glfs_st_mask upon return.
+ *
+ * For each bit in the mask argument:
+ *
+ * - if the datum is not supported:
+ *
+ * - the bit will be cleared, and
+ *
+ * - the datum value is undefined
+ *
+ * - otherwise, if explicitly requested:
+ *
+ * - the field will be filled in and the bit will be set;
+ *
+ * - otherwise, if not requested, but available in, it will be filled in
+ * anyway, and the bit will be set upon return;
+ *
+ * - otherwise the field and the bit will be cleared before returning.
+ *
+ */
+
+struct glfs_stat {
+ uint64_t glfs_st_mask; /* What results were written [uncond] */
+ uint64_t glfs_st_attributes; /* Flags conveying information about the file
+ [uncond] */
+ uint64_t glfs_st_attributes_mask; /* Mask to show what's supported in
+ st_attributes [ucond] */
+ struct timespec glfs_st_atime; /* Last access time */
+ struct timespec glfs_st_btime; /* File creation time */
+ struct timespec glfs_st_ctime; /* Last attribute change time */
+ struct timespec glfs_st_mtime; /* Last data modification time */
+ ino_t glfs_st_ino; /* Inode number */
+ off_t glfs_st_size; /* File size */
+ blkcnt_t glfs_st_blocks; /* Number of 512-byte blocks allocated */
+ uint32_t glfs_st_rdev_major; /* Device ID of special file [if bdev/cdev] */
+ uint32_t glfs_st_rdev_minor;
+ uint32_t glfs_st_dev_major; /* ID of device containing file [uncond] */
+ uint32_t glfs_st_dev_minor;
+ blksize_t glfs_st_blksize; /* Preferred general I/O size [uncond] */
+ nlink_t glfs_st_nlink; /* Number of hard links */
+ uid_t glfs_st_uid; /* User ID of owner */
+ gid_t glfs_st_gid; /* Group ID of owner */
+ mode_t glfs_st_mode; /* File mode */
+};
+
+#define GLFS_LEASE_ID_SIZE 16 /* 128bits */
+typedef char glfs_leaseid_t[GLFS_LEASE_ID_SIZE];
+
+/*
+ * PER THREAD IDENTITY MODIFIERS
+ *
+ * The following operations enable to set a per thread identity context
+ * for the glfs APIs to perform operations as. The calls here are kept as close
+ * to POSIX equivalents as possible.
+ *
+ * NOTES:
+ *
+ * - setgroups is a per thread setting, hence this is named as fsgroups to be
+ * close in naming to the fs(u/g)id APIs
+ * - Typical mode of operation is to set the IDs as required, with the
+ * supplementary groups being optionally set, make the glfs call and post the
+ * glfs operation set them back to eu/gid or uid/gid as appropriate to the
+ * caller
+ * - The groups once set, need to be unset by setting the size to 0 (in which
+ * case the list argument is a do not care)
+ * - In case of leases feature enables, setfsleaseid is used to set and reset
+ * leaseid before and after every I/O operation.
+ * - Once a process for a thread of operation choses to set the IDs, all glfs
+ * calls made from that thread would default to the IDs set for the thread.
+ * As a result use these APIs with care and ensure that the set IDs are
+ * reverted to global process defaults as required.
+ *
+ */
+int
+glfs_setfsuid(uid_t fsuid) __THROW GFAPI_PUBLIC(glfs_setfsuid, 3.4.2);
+
+int
+glfs_setfsgid(gid_t fsgid) __THROW GFAPI_PUBLIC(glfs_setfsgid, 3.4.2);
+
+int
+glfs_setfsgroups(size_t size, const gid_t *list) __THROW
+ GFAPI_PUBLIC(glfs_setfsgroups, 3.4.2);
+
+int
+glfs_setfsleaseid(glfs_leaseid_t leaseid) __THROW
+ GFAPI_PUBLIC(glfs_setfsleaseid, 4.0.0);
+
+/*
+ SYNOPSIS
+
+ glfs_open: Open a file.
+
+ DESCRIPTION
+
+ This function opens a file on a virtual mount.
+
+ PARAMETERS
+
+ @fs: The 'virtual mount' object to be initialized.
+
+ @path: Path of the file within the virtual mount.
+
+ @flags: Open flags. See open(2). O_CREAT is not supported.
+ Use glfs_creat() for creating files.
+
+ RETURN VALUES
+
+ NULL : Failure. @errno will be set with the type of failure.
+ Others : Pointer to the opened glfs_fd_t.
+
+ */
+
+glfs_fd_t *
+glfs_open(glfs_t *fs, const char *path, int flags) __THROW
+ GFAPI_PUBLIC(glfs_open, 3.4.0);
+
+/*
+ SYNOPSIS
+
+ glfs_creat: Create a file.
+
+ DESCRIPTION
+
+ This function opens a file on a virtual mount.
+
+ PARAMETERS
+
+ @fs: The 'virtual mount' object to be initialized.
+
+ @path: Path of the file within the virtual mount.
+
+ @mode: Permission of the file to be created.
+
+ @flags: Create flags. See open(2). O_EXCL is supported.
+
+ RETURN VALUES
+
+ NULL : Failure. @errno will be set with the type of failure.
+ Others : Pointer to the opened glfs_fd_t.
+
+ */
+
+glfs_fd_t *
+glfs_creat(glfs_t *fs, const char *path, int flags, mode_t mode) __THROW
+ GFAPI_PUBLIC(glfs_creat, 3.4.0);
+
+int
+glfs_close(glfs_fd_t *fd) __THROW GFAPI_PUBLIC(glfs_close, 3.4.0);
+
+glfs_t *
+glfs_from_glfd(glfs_fd_t *fd) __THROW GFAPI_PUBLIC(glfs_from_glfd, 3.4.0);
+
+int
+glfs_set_xlator_option(glfs_t *fs, const char *xlator, const char *key,
+ const char *value) __THROW
+ GFAPI_PUBLIC(glfs_set_xlator_option, 3.4.0);
+
+/*
+
+ glfs_io_cbk
+
+ The following is the function type definition of the callback
+ function pointer which has to be provided by the caller to the
+ *_async() versions of the IO calls.
+
+ The callback function is called on completion of the requested
+ IO, and the appropriate return value is returned in @ret.
+
+ In case of an error in completing the IO, @ret will be -1 and
+ @errno will be set with the appropriate error.
+
+ @ret will be same as the return value of the non _async() variant
+ of the particular call
+
+ @data is the same context pointer provided by the caller at the
+ time of issuing the async IO call. This can be used by the
+ caller to differentiate different instances of the async requests
+ in a common callback function.
+
+ @prestat and @poststat are allocated on the stack, that are auto destroyed
+ post the callback function returns.
+*/
+
+typedef void (*glfs_io_cbk)(glfs_fd_t *fd, ssize_t ret,
+ struct glfs_stat *prestat,
+ struct glfs_stat *poststat, void *data);
+
+// glfs_{read,write}[_async]
+
+ssize_t
+glfs_read(glfs_fd_t *fd, void *buf, size_t count, int flags) __THROW
+ GFAPI_PUBLIC(glfs_read, 3.4.0);
+
+ssize_t
+glfs_write(glfs_fd_t *fd, const void *buf, size_t count, int flags) __THROW
+ GFAPI_PUBLIC(glfs_write, 3.4.0);
+
+int
+glfs_read_async(glfs_fd_t *fd, void *buf, size_t count, int flags,
+ glfs_io_cbk fn, void *data) __THROW
+ GFAPI_PUBLIC(glfs_read_async, 6.0);
+
+int
+glfs_write_async(glfs_fd_t *fd, const void *buf, size_t count, int flags,
+ glfs_io_cbk fn, void *data) __THROW
+ GFAPI_PUBLIC(glfs_write_async, 6.0);
+
+// glfs_{read,write}v[_async]
+
+ssize_t
+glfs_readv(glfs_fd_t *fd, const struct iovec *iov, int iovcnt,
+ int flags) __THROW GFAPI_PUBLIC(glfs_readv, 3.4.0);
+
+ssize_t
+glfs_writev(glfs_fd_t *fd, const struct iovec *iov, int iovcnt,
+ int flags) __THROW GFAPI_PUBLIC(glfs_writev, 3.4.0);
+
+int
+glfs_readv_async(glfs_fd_t *fd, const struct iovec *iov, int count, int flags,
+ glfs_io_cbk fn, void *data) __THROW
+ GFAPI_PUBLIC(glfs_readv_async, 6.0);
+
+int
+glfs_writev_async(glfs_fd_t *fd, const struct iovec *iov, int count, int flags,
+ glfs_io_cbk fn, void *data) __THROW
+ GFAPI_PUBLIC(glfs_writev_async, 6.0);
+
+// glfs_p{read,write}[_async]
+
+ssize_t
+glfs_pread(glfs_fd_t *fd, void *buf, size_t count, off_t offset, int flags,
+ struct glfs_stat *poststat) __THROW GFAPI_PUBLIC(glfs_pread, 6.0);
+
+ssize_t
+glfs_pwrite(glfs_fd_t *fd, const void *buf, size_t count, off_t offset,
+ int flags, struct glfs_stat *prestat,
+ struct glfs_stat *poststat) __THROW GFAPI_PUBLIC(glfs_pwrite, 6.0);
+
+int
+glfs_pread_async(glfs_fd_t *fd, void *buf, size_t count, off_t offset,
+ int flags, glfs_io_cbk fn, void *data) __THROW
+ GFAPI_PUBLIC(glfs_pread_async, 6.0);
+
+int
+glfs_pwrite_async(glfs_fd_t *fd, const void *buf, int count, off_t offset,
+ int flags, glfs_io_cbk fn, void *data) __THROW
+ GFAPI_PUBLIC(glfs_pwrite_async, 6.0);
+
+// glfs_p{read,write}v[_async]
+
+ssize_t
+glfs_preadv(glfs_fd_t *fd, const struct iovec *iov, int iovcnt, off_t offset,
+ int flags) __THROW GFAPI_PUBLIC(glfs_preadv, 3.4.0);
+
+ssize_t
+glfs_pwritev(glfs_fd_t *fd, const struct iovec *iov, int iovcnt, off_t offset,
+ int flags) __THROW GFAPI_PUBLIC(glfs_pwritev, 3.4.0);
+
+int
+glfs_preadv_async(glfs_fd_t *fd, const struct iovec *iov, int count,
+ off_t offset, int flags, glfs_io_cbk fn, void *data) __THROW
+ GFAPI_PUBLIC(glfs_preadv_async, 6.0);
+
+int
+glfs_pwritev_async(glfs_fd_t *fd, const struct iovec *iov, int count,
+ off_t offset, int flags, glfs_io_cbk fn, void *data) __THROW
+ GFAPI_PUBLIC(glfs_pwritev_async, 6.0);
+
+off_t
+glfs_lseek(glfs_fd_t *fd, off_t offset, int whence) __THROW
+ GFAPI_PUBLIC(glfs_lseek, 3.4.0);
+
+ssize_t
+glfs_copy_file_range(struct glfs_fd *glfd_in, off64_t *off_in,
+ struct glfs_fd *glfd_out, off64_t *off_out, size_t len,
+ unsigned int flags, struct glfs_stat *statbuf,
+ struct glfs_stat *prestat,
+ struct glfs_stat *poststat) __THROW
+ GFAPI_PUBLIC(glfs_copy_file_range, 6.0);
+
+int
+glfs_truncate(glfs_t *fs, const char *path, off_t length) __THROW
+ GFAPI_PUBLIC(glfs_truncate, 3.7.15);
+
+int
+glfs_ftruncate(glfs_fd_t *fd, off_t length, struct glfs_stat *prestat,
+ struct glfs_stat *poststat) __THROW
+ GFAPI_PUBLIC(glfs_ftruncate, 6.0);
+
+int
+glfs_ftruncate_async(glfs_fd_t *fd, off_t length, glfs_io_cbk fn,
+ void *data) __THROW
+ GFAPI_PUBLIC(glfs_ftruncate_async, 6.0);
+
+int
+glfs_lstat(glfs_t *fs, const char *path, struct stat *buf) __THROW
+ GFAPI_PUBLIC(glfs_lstat, 3.4.0);
+
+int
+glfs_stat(glfs_t *fs, const char *path, struct stat *buf) __THROW
+ GFAPI_PUBLIC(glfs_stat, 3.4.0);
+
+int
+glfs_fstat(glfs_fd_t *fd, struct stat *buf) __THROW
+ GFAPI_PUBLIC(glfs_fstat, 3.4.0);
+
+int
+glfs_fsync(glfs_fd_t *fd, struct glfs_stat *prestat,
+ struct glfs_stat *poststat) __THROW GFAPI_PUBLIC(glfs_fsync, 6.0);
+
+int
+glfs_fsync_async(glfs_fd_t *fd, glfs_io_cbk fn, void *data) __THROW
+ GFAPI_PUBLIC(glfs_fsync_async, 6.0);
+
+int
+glfs_fdatasync(glfs_fd_t *fd, struct glfs_stat *prestat,
+ struct glfs_stat *poststat) __THROW
+ GFAPI_PUBLIC(glfs_fdatasync, 6.0);
+
+int
+glfs_fdatasync_async(glfs_fd_t *fd, glfs_io_cbk fn, void *data) __THROW
+ GFAPI_PUBLIC(glfs_fdatasync_async, 6.0);
+
+int
+glfs_access(glfs_t *fs, const char *path, int mode) __THROW
+ GFAPI_PUBLIC(glfs_access, 3.4.0);
+
+int
+glfs_symlink(glfs_t *fs, const char *oldpath, const char *newpath) __THROW
+ GFAPI_PUBLIC(glfs_symlink, 3.4.0);
+
+int
+glfs_readlink(glfs_t *fs, const char *path, char *buf, size_t bufsiz) __THROW
+ GFAPI_PUBLIC(glfs_readlink, 3.4.0);
+
+int
+glfs_mknod(glfs_t *fs, const char *path, mode_t mode, dev_t dev) __THROW
+ GFAPI_PUBLIC(glfs_mknod, 3.4.0);
+
+int
+glfs_mkdir(glfs_t *fs, const char *path, mode_t mode) __THROW
+ GFAPI_PUBLIC(glfs_mkdir, 3.4.0);
+
+int
+glfs_unlink(glfs_t *fs, const char *path) __THROW
+ GFAPI_PUBLIC(glfs_unlink, 3.4.0);
+
+int
+glfs_rmdir(glfs_t *fs, const char *path) __THROW
+ GFAPI_PUBLIC(glfs_rmdir, 3.4.0);
+
+int
+glfs_rename(glfs_t *fs, const char *oldpath, const char *newpath) __THROW
+ GFAPI_PUBLIC(glfs_rename, 3.4.0);
+
+int
+glfs_link(glfs_t *fs, const char *oldpath, const char *newpath) __THROW
+ GFAPI_PUBLIC(glfs_link, 3.4.0);
+
+glfs_fd_t *
+glfs_opendir(glfs_t *fs, const char *path) __THROW
+ GFAPI_PUBLIC(glfs_opendir, 3.4.0);
+
+/*
+ * @glfs_readdir_r and @glfs_readdirplus_r ARE thread safe AND re-entrant,
+ * but the interface has ambiguity about the size of @dirent to be allocated
+ * before calling the APIs. 512 byte buffer (for @dirent) is sufficient for
+ * all known systems which are tested againt glusterfs/gfapi, but may be
+ * insufficient in the future.
+ */
+
+int
+glfs_readdir_r(glfs_fd_t *fd, struct dirent *dirent,
+ struct dirent **result) __THROW
+ GFAPI_PUBLIC(glfs_readdir_r, 3.4.0);
+
+int
+glfs_readdirplus_r(glfs_fd_t *fd, struct stat *stat, struct dirent *dirent,
+ struct dirent **result) __THROW
+ GFAPI_PUBLIC(glfs_readdirplus_r, 3.4.0);
+
+/*
+ * @glfs_readdir and @glfs_readdirplus are NEITHER thread safe NOR re-entrant
+ * when called on the same directory handle. However they ARE thread safe
+ * AND re-entrant when called on different directory handles (which may be
+ * referring to the same directory too.)
+ */
+
+struct dirent *
+glfs_readdir(glfs_fd_t *fd) __THROW GFAPI_PUBLIC(glfs_readdir, 3.5.0);
+
+struct dirent *
+glfs_readdirplus(glfs_fd_t *fd, struct stat *stat) __THROW
+ GFAPI_PUBLIC(glfs_readdirplus, 3.5.0);
+
+long
+glfs_telldir(glfs_fd_t *fd) __THROW GFAPI_PUBLIC(glfs_telldir, 3.4.0);
+
+void
+glfs_seekdir(glfs_fd_t *fd, long offset) __THROW
+ GFAPI_PUBLIC(glfs_seekdir, 3.4.0);
+
+int
+glfs_closedir(glfs_fd_t *fd) __THROW GFAPI_PUBLIC(glfs_closedir, 3.4.0);
+
+int
+glfs_statvfs(glfs_t *fs, const char *path, struct statvfs *buf) __THROW
+ GFAPI_PUBLIC(glfs_statvfs, 3.4.0);
+
+int
+glfs_chmod(glfs_t *fs, const char *path, mode_t mode) __THROW
+ GFAPI_PUBLIC(glfs_chmod, 3.4.0);
+
+int
+glfs_fchmod(glfs_fd_t *fd, mode_t mode) __THROW
+ GFAPI_PUBLIC(glfs_fchmod, 3.4.0);
+
+int
+glfs_chown(glfs_t *fs, const char *path, uid_t uid, gid_t gid) __THROW
+ GFAPI_PUBLIC(glfs_chown, 3.4.0);
+
+int
+glfs_lchown(glfs_t *fs, const char *path, uid_t uid, gid_t gid) __THROW
+ GFAPI_PUBLIC(glfs_lchown, 3.4.0);
+
+int
+glfs_fchown(glfs_fd_t *fd, uid_t uid, gid_t gid) __THROW
+ GFAPI_PUBLIC(glfs_fchown, 3.4.0);
+
+int
+glfs_utimens(glfs_t *fs, const char *path,
+ const struct timespec times[2]) __THROW
+ GFAPI_PUBLIC(glfs_utimens, 3.4.0);
+
+int
+glfs_lutimens(glfs_t *fs, const char *path,
+ const struct timespec times[2]) __THROW
+ GFAPI_PUBLIC(glfs_lutimens, 3.4.0);
+
+int
+glfs_futimens(glfs_fd_t *fd, const struct timespec times[2]) __THROW
+ GFAPI_PUBLIC(glfs_futimens, 3.4.0);
+
+ssize_t
+glfs_getxattr(glfs_t *fs, const char *path, const char *name, void *value,
+ size_t size) __THROW GFAPI_PUBLIC(glfs_getxattr, 3.4.0);
+
+ssize_t
+glfs_lgetxattr(glfs_t *fs, const char *path, const char *name, void *value,
+ size_t size) __THROW GFAPI_PUBLIC(glfs_lgetxattr, 3.4.0);
+
+ssize_t
+glfs_fgetxattr(glfs_fd_t *fd, const char *name, void *value,
+ size_t size) __THROW GFAPI_PUBLIC(glfs_fgetxattr, 3.4.0);
+
+ssize_t
+glfs_listxattr(glfs_t *fs, const char *path, void *value, size_t size) __THROW
+ GFAPI_PUBLIC(glfs_listxattr, 3.4.0);
+
+ssize_t
+glfs_llistxattr(glfs_t *fs, const char *path, void *value, size_t size) __THROW
+ GFAPI_PUBLIC(glfs_llistxattr, 3.4.0);
+
+ssize_t
+glfs_flistxattr(glfs_fd_t *fd, void *value, size_t size) __THROW
+ GFAPI_PUBLIC(glfs_flistxattr, 3.4.0);
+
+int
+glfs_setxattr(glfs_t *fs, const char *path, const char *name, const void *value,
+ size_t size, int flags) __THROW
+ GFAPI_PUBLIC(glfs_setxattr, 3.4.0);
+
+int
+glfs_lsetxattr(glfs_t *fs, const char *path, const char *name,
+ const void *value, size_t size, int flags) __THROW
+ GFAPI_PUBLIC(glfs_lsetxattr, 3.4.0);
+
+int
+glfs_fsetxattr(glfs_fd_t *fd, const char *name, const void *value, size_t size,
+ int flags) __THROW GFAPI_PUBLIC(glfs_fsetxattr, 3.4.0);
+
+int
+glfs_removexattr(glfs_t *fs, const char *path, const char *name) __THROW
+ GFAPI_PUBLIC(glfs_removexattr, 3.4.0);
+
+int
+glfs_lremovexattr(glfs_t *fs, const char *path, const char *name) __THROW
+ GFAPI_PUBLIC(glfs_lremovexattr, 3.4.0);
+
+int
+glfs_fremovexattr(glfs_fd_t *fd, const char *name) __THROW
+ GFAPI_PUBLIC(glfs_fremovexattr, 3.4.0);
+
+int
+glfs_fallocate(glfs_fd_t *fd, int keep_size, off_t offset, size_t len) __THROW
+ GFAPI_PUBLIC(glfs_fallocate, 3.5.0);
+
+int
+glfs_discard(glfs_fd_t *fd, off_t offset, size_t len) __THROW
+ GFAPI_PUBLIC(glfs_discard, 3.5.0);
+
+int
+glfs_discard_async(glfs_fd_t *fd, off_t length, size_t lent, glfs_io_cbk fn,
+ void *data) __THROW GFAPI_PUBLIC(glfs_discard_async, 6.0);
+
+int
+glfs_zerofill(glfs_fd_t *fd, off_t offset, off_t len) __THROW
+ GFAPI_PUBLIC(glfs_zerofill, 3.5.0);
+
+int
+glfs_zerofill_async(glfs_fd_t *fd, off_t length, off_t len, glfs_io_cbk fn,
+ void *data) __THROW GFAPI_PUBLIC(glfs_zerofill_async, 6.0);
+
+char *
+glfs_getcwd(glfs_t *fs, char *buf, size_t size) __THROW
+ GFAPI_PUBLIC(glfs_getcwd, 3.4.0);
+
+int
+glfs_chdir(glfs_t *fs, const char *path) __THROW
+ GFAPI_PUBLIC(glfs_chdir, 3.4.0);
+
+int
+glfs_fchdir(glfs_fd_t *fd) __THROW GFAPI_PUBLIC(glfs_fchdir, 3.4.0);
+
+char *
+glfs_realpath(glfs_t *fs, const char *path, char *resolved_path) __THROW
+ GFAPI_PUBLIC(glfs_realpath, 3.7.17);
+
+/*
+ * @cmd and @flock are as specified in man fcntl(2).
+ */
+int
+glfs_posix_lock(glfs_fd_t *fd, int cmd, struct flock *flock) __THROW
+ GFAPI_PUBLIC(glfs_posix_lock, 3.4.0);
+
+/*
+ SYNOPSIS
+
+ glfs_file_lock: Request extended byte range lock on a file
+
+ DESCRIPTION
+
+ This function is capable of requesting either advisory or mandatory type
+ byte range locks on a file.
+
+ Note: To set a unique owner key for locks based on a particular file
+ descriptor, make use of glfs_fd_set_lkowner() api to do so before
+ requesting lock via this api. This owner key will be further consumed
+ by other incoming data modifying file operations via the same file
+ descriptor.
+
+ PARAMETERS
+
+ @fd: File descriptor
+
+ @cmd: As specified in man fcntl(2).
+
+ @flock: As specified in man fcntl(2).
+
+ @lk_