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authorSantosh Kumar Pradhan <spradhan@redhat.com>2013-09-19 12:01:38 +0530
committerAnand Avati <avati@redhat.com>2013-09-29 16:54:37 -0700
commite9554f7792d893f0ea8afe368829f9944ef52bdf (patch)
tree465039c76a2c87e2029c93c2fa3f288e7795254b /libglusterfs
parent84fa8af38d2eab0f72349abb8136811bd3e96570 (diff)
gNFS: Incorrect NFS ACL encoding for XFS
Problem: Incorrect NFS ACL encoding causes "system.posix_acl_default" setxattr failure on bricks on XFS file system. XFS (potentially others?) doesn't understand when the 0x10 prefix is added to the ACL type field for default ACLs (which the Linux NFS client adds) which causes setfacl()->setxattr() to fail silently. NFS client adds NFS_ACL_DEFAULT(0x1000) for default ACL. FIX: Mask the prefix (added by NFS client) OFF, so the setfacl is not rejected when it hits the FS. Original patch by: "Richard Wareing" Change-Id: I17ad27d84f030cdea8396eb667ee031f0d41b396 BUG: 1009210 Signed-off-by: Santosh Kumar Pradhan <spradhan@redhat.com> Reviewed-on: http://review.gluster.org/5980 Reviewed-by: Amar Tumballi <amarts@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'libglusterfs')
-rw-r--r--libglusterfs/src/glusterfs-acl.h81
-rw-r--r--libglusterfs/src/glusterfs.h3
2 files changed, 81 insertions, 3 deletions
diff --git a/libglusterfs/src/glusterfs-acl.h b/libglusterfs/src/glusterfs-acl.h
new file mode 100644
index 0000000..6c3154f
--- /dev/null
+++ b/libglusterfs/src/glusterfs-acl.h
@@ -0,0 +1,81 @@
+/*
+ Copyright (c) 2008-2012 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 _COMMON_ACL_H
+#define _COMMON_ACL_H
+
+#include <stdint.h>
+#include <sys/types.h> /* For uid_t */
+
+#include "locking.h" /* For gf_lock_t in struct posix_acl_conf */
+
+#define ACL_PROGRAM 100227
+#define ACLV3_VERSION 3
+
+#define POSIX_ACL_MINIMAL_ACE_COUNT 3
+
+#define POSIX_ACL_READ (0x04)
+#define POSIX_ACL_WRITE (0x02)
+#define POSIX_ACL_EXECUTE (0x01)
+
+#define POSIX_ACL_UNDEFINED_TAG (0x00)
+#define POSIX_ACL_USER_OBJ (0x01)
+#define POSIX_ACL_USER (0x02)
+#define POSIX_ACL_GROUP_OBJ (0x04)
+#define POSIX_ACL_GROUP (0x08)
+#define POSIX_ACL_MASK (0x10)
+#define POSIX_ACL_OTHER (0x20)
+
+#define POSIX_ACL_UNDEFINED_ID (-1)
+
+#define POSIX_ACL_VERSION (0x02)
+
+#define POSIX_ACL_ACCESS_XATTR "system.posix_acl_access"
+#define POSIX_ACL_DEFAULT_XATTR "system.posix_acl_default"
+
+struct posix_acl_xattr_entry {
+ uint16_t tag;
+ uint16_t perm;
+ uint32_t id;
+};
+
+struct posix_acl_xattr_header {
+ uint32_t version;
+ struct posix_acl_xattr_entry entries[];
+};
+
+struct posix_ace {
+ uint16_t tag;
+ uint16_t perm;
+ uint32_t id;
+};
+
+
+struct posix_acl {
+ int refcnt;
+ int count;
+ struct posix_ace entries[];
+};
+
+struct posix_acl_ctx {
+ uid_t uid;
+ gid_t gid;
+ mode_t perm;
+ struct posix_acl *acl_access;
+ struct posix_acl *acl_default;
+};
+
+struct posix_acl_conf {
+ gf_lock_t acl_lock;
+ uid_t super_uid;
+ struct posix_acl *minimal_acl;
+};
+
+#endif /* _COMMON_ACL_H */
diff --git a/libglusterfs/src/glusterfs.h b/libglusterfs/src/glusterfs.h
index 068b307..5fd0c10 100644
--- a/libglusterfs/src/glusterfs.h
+++ b/libglusterfs/src/glusterfs.h
@@ -128,9 +128,6 @@
#define RB_PUMP_CMD_ABORT "glusterfs.pump.abort"
#define RB_PUMP_CMD_STATUS "glusterfs.pump.status"
-#define POSIX_ACL_DEFAULT_XATTR "system.posix_acl_default"
-#define POSIX_ACL_ACCESS_XATTR "system.posix_acl_access"
-
#define GLUSTERFS_RDMA_INLINE_THRESHOLD (2048)
#define GLUSTERFS_RDMA_MAX_HEADER_SIZE (228) /* (sizeof (rdma_header_t) \
+ RDMA_MAX_SEGMENTS \