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authorVikas Gorur <vikas@zresearch.com>2009-02-18 17:36:07 +0530
committerVikas Gorur <vikas@zresearch.com>2009-02-18 17:36:07 +0530
commit77adf4cd648dce41f89469dd185deec6b6b53a0b (patch)
tree02e155a5753b398ee572b45793f889b538efab6b /xlators/features/path-convertor
parentf3b2e6580e5663292ee113c741343c8a43ee133f (diff)
Added all files
Diffstat (limited to 'xlators/features/path-convertor')
-rw-r--r--xlators/features/path-convertor/Makefile.am3
-rw-r--r--xlators/features/path-convertor/src/Makefile.am14
-rw-r--r--xlators/features/path-convertor/src/path.c1217
3 files changed, 1234 insertions, 0 deletions
diff --git a/xlators/features/path-convertor/Makefile.am b/xlators/features/path-convertor/Makefile.am
new file mode 100644
index 0000000..d471a3f
--- /dev/null
+++ b/xlators/features/path-convertor/Makefile.am
@@ -0,0 +1,3 @@
+SUBDIRS = src
+
+CLEANFILES =
diff --git a/xlators/features/path-convertor/src/Makefile.am b/xlators/features/path-convertor/src/Makefile.am
new file mode 100644
index 0000000..1fde193
--- /dev/null
+++ b/xlators/features/path-convertor/src/Makefile.am
@@ -0,0 +1,14 @@
+
+xlator_LTLIBRARIES = path-converter.la
+xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/features
+
+path_converter_la_LDFLAGS = -module -avoidversion
+
+path_converter_la_SOURCES = path.c
+path_converter_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la
+
+AM_CFLAGS = -fPIC -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE -Wall -D$(GF_HOST_OS)\
+ -I$(top_srcdir)/libglusterfs/src -shared -nostartfiles $(GF_CFLAGS)
+
+CLEANFILES =
+
diff --git a/xlators/features/path-convertor/src/path.c b/xlators/features/path-convertor/src/path.c
new file mode 100644
index 0000000..41ef1d8
--- /dev/null
+++ b/xlators/features/path-convertor/src/path.c
@@ -0,0 +1,1217 @@
+/*
+ Copyright (c) 2008 Z RESEARCH, Inc. <http://www.zresearch.com>
+ This file is part of GlusterFS.
+
+ GlusterFS 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.
+
+ GlusterFS 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/>.
+*/
+
+/* TODO: add gf_log to all the cases returning errors */
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+/**
+ * xlators/features/path-translator:
+ * This translator converts the path it gets into user specified targets.
+ */
+
+#include <sys/types.h>
+#include <regex.h>
+#include <time.h>
+#include <errno.h>
+#include "glusterfs.h"
+#include "xlator.h"
+
+typedef struct path_private
+{
+ int32_t this_len;
+ int32_t start_off;
+ int32_t end_off;
+ char *this;
+ char *that;
+ char *path;
+ regex_t *preg;
+} path_private_t;
+
+static char *
+name_this_to_that (xlator_t *xl, const char *path, const char *name)
+{
+ path_private_t *priv = xl->private;
+ char priv_path[ZR_PATH_MAX] = {0,};
+ char *tmp_name = NULL;
+ int32_t path_len = strlen (path);
+ int32_t name_len = strlen (name) - ZR_FILE_CONTENT_STRLEN;
+ int32_t total_len = path_len + name_len;
+ int32_t i = 0, j = 0;
+
+ if (path_len >= priv->end_off)
+ return (char *)name;
+
+ if (priv->end_off && (total_len > priv->end_off)) {
+ j = priv->start_off;
+ tmp_name = CALLOC (1, (total_len + ZR_FILE_CONTENT_STRLEN));
+ ERR_ABORT (tmp_name);
+
+ /* Get the complete path for the file first */
+ strcpy (tmp_name, path);
+ strcat (tmp_name, name + ZR_FILE_CONTENT_STRLEN);
+
+ strncpy (priv_path, tmp_name, priv->start_off);
+ for (i = priv->start_off; i < priv->end_off; i++) {
+ if (tmp_name[i] == '/')
+ continue;
+ priv_path[j++] = tmp_name[i];
+ }
+ memcpy ((priv_path + j),
+ (tmp_name + priv->end_off),
+ (total_len - priv->end_off));
+ priv_path[(total_len - (priv->end_off - j))] = '\0';
+
+ strcpy (tmp_name, ZR_FILE_CONTENT_STR);
+ strcat (tmp_name, priv_path);
+
+ return tmp_name;
+ }
+
+ return (char *)name;
+}
+
+/* This function should return
+ * NULL -
+ * converted path - if path match
+ * same path - if it doesn't match
+ */
+static char *
+path_this_to_that (xlator_t *xl, const char *path)
+{
+ path_private_t *priv = xl->private;
+ char *priv_path = NULL;
+ int32_t path_len = strlen (path);
+ int32_t i = 0, j = 0;
+
+ if (priv->end_off && (path_len > priv->start_off)) {
+ priv_path = CALLOC (1, path_len);
+ ERR_ABORT (priv_path);
+
+ if (priv->start_off && (path_len > priv->start_off))
+ memcpy (priv_path, path, priv->start_off);
+ if (path_len > priv->end_off) {
+ j = priv->start_off;
+ for (i = priv->start_off; i < priv->end_off; i++) {
+ if (path[i] == '/')
+ continue;
+ priv_path[j++] = path[i];
+ }
+ memcpy ((priv_path + j),
+ (path + priv->end_off),
+ (path_len - priv->end_off));
+ priv_path[(path_len - (priv->end_off - j))] = '\0';
+ }
+ return priv_path;
+ }
+ return (char *)path;
+}
+
+int32_t
+path_create_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ fd_t *fd,
+ inode_t *inode,
+ struct stat *buf)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, fd, inode, buf);
+ return 0;
+}
+
+int32_t
+path_open_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ fd_t *fd)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, fd);
+ return 0;
+}
+
+int32_t
+path_getdents_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ dir_entry_t *entries,
+ int32_t count)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, entries, count);
+ return 0;
+}
+
+int32_t
+path_readdir_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ gf_dirent_t *buf)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, buf);
+ return 0;
+}
+
+
+int32_t
+path_readlink_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ const char *buf)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, buf);
+ return 0;
+}
+
+int32_t
+path_lookup_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ inode_t *inode,
+ struct stat *buf,
+ dict_t *xattr)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, inode, buf, xattr);
+ return 0;
+}
+
+
+int32_t
+path_symlink_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ inode_t *inode,
+ struct stat *buf)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, inode, buf);
+ return 0;
+}
+
+int32_t
+path_mknod_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ inode_t *inode,
+ struct stat *buf)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, inode, buf);
+ return 0;
+}
+
+
+int32_t
+path_mkdir_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ inode_t *inode,
+ struct stat *buf)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, inode, buf);
+ return 0;
+}
+
+int32_t
+path_link_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ inode_t *inode,
+ struct stat *buf)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, inode, buf);
+ return 0;
+}
+
+int32_t
+path_opendir_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ fd_t *fd)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, fd);
+ return 0;
+}
+
+
+int32_t
+path_common_buf_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ struct stat *buf)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, buf);
+ return 0;
+}
+
+int32_t
+path_common_dict_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ dict_t *dict)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, dict);
+ return 0;
+}
+
+int32_t
+path_common_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno)
+{
+ STACK_UNWIND (frame, op_ret, op_errno);
+ return 0;
+}
+
+/* */
+int32_t
+path_lookup (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ dict_t *xattr_req)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame, path_lookup_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->lookup,
+ loc, xattr_req);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_stat (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_common_buf_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->stat,
+ loc);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_readlink (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ size_t size)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_readlink_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->readlink,
+ loc,
+ size);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_mknod (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ mode_t mode,
+ dev_t dev)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_mknod_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->mknod,
+ loc,
+ mode,
+ dev);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_mkdir (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ mode_t mode)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_mkdir_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->mkdir,
+ loc,
+ mode);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_unlink (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_common_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->unlink,
+ loc);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_rmdir (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_common_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->rmdir,
+ loc);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_symlink (call_frame_t *frame,
+ xlator_t *this,
+ const char *linkpath,
+ loc_t *loc)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_symlink_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->symlink,
+ linkpath,
+ loc);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_rename (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *oldloc,
+ loc_t *newloc)
+{
+ char *oldloc_path = (char *)oldloc->path;
+ char *tmp_oldloc_path = NULL;
+
+ char *newloc_path = (char *)newloc->path;
+ char *tmp_newloc_path = NULL;
+
+ if (!(tmp_oldloc_path = path_this_to_that (this, oldloc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ oldloc->path = tmp_oldloc_path;
+
+ if (!(tmp_newloc_path = path_this_to_that (this, newloc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ newloc->path = tmp_newloc_path;
+
+ STACK_WIND (frame,
+ path_common_buf_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->rename,
+ oldloc,
+ newloc);
+
+ oldloc->path = oldloc_path;
+ if (tmp_oldloc_path != oldloc_path)
+ FREE (tmp_oldloc_path);
+
+ newloc->path = newloc_path;
+ if (tmp_newloc_path != newloc_path)
+ FREE (tmp_newloc_path);
+
+ return 0;
+}
+
+int32_t
+path_link (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *oldloc,
+ loc_t *newloc)
+{
+ char *oldloc_path = (char *)oldloc->path;
+ char *tmp_oldloc_path = NULL;
+
+ char *newloc_path = (char *)newloc->path;
+ char *tmp_newloc_path = NULL;
+
+ if (!(tmp_oldloc_path = path_this_to_that (this, oldloc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ oldloc->path = tmp_oldloc_path;
+
+ if (!(tmp_newloc_path = path_this_to_that (this, newloc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ newloc->path = tmp_newloc_path;
+
+ STACK_WIND (frame,
+ path_link_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->link,
+ oldloc,
+ newloc);
+
+ oldloc->path = oldloc_path;
+ if (tmp_oldloc_path != oldloc_path)
+ FREE (tmp_oldloc_path);
+
+ newloc->path = newloc_path;
+ if (tmp_newloc_path != newloc_path)
+ FREE (tmp_newloc_path);
+
+ return 0;
+}
+
+int32_t
+path_chmod (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ mode_t mode)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_common_buf_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->chmod,
+ loc,
+ mode);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_chown (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ uid_t uid,
+ gid_t gid)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_common_buf_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->chown,
+ loc,
+ uid,
+ gid);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_truncate (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ off_t offset)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_common_buf_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->truncate,
+ loc,
+ offset);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_utimens (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ struct timespec tv[2])
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_common_buf_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->utimens,
+ loc,
+ tv);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_open (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ int32_t flags,
+ fd_t *fd)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_open_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->open,
+ loc,
+ flags,
+ fd);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_create (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ int32_t flags,
+ mode_t mode,
+ fd_t *fd)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_create_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->create,
+ loc,
+ flags,
+ mode,
+ fd);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_setxattr (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ dict_t *dict,
+ int32_t flags)
+{
+ char *tmp_name = NULL;
+ data_pair_t *trav = dict->members_list;
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ if (ZR_FILE_CONTENT_REQUEST(trav->key)) {
+ tmp_name = name_this_to_that (this, loc->path, trav->key);
+ if (tmp_name != trav->key) {
+ trav->key = tmp_name;
+ } else {
+ tmp_name = NULL;
+ }
+ }
+
+ STACK_WIND (frame,
+ path_common_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->setxattr,
+ loc,
+ dict,
+ flags);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ if (tmp_name)
+ FREE (tmp_name);
+
+ return 0;
+}
+
+int32_t
+path_getxattr (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ const char *name)
+{
+ char *tmp_name = (char *)name;
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ if (ZR_FILE_CONTENT_REQUEST(name)) {
+ tmp_name = name_this_to_that (this, loc->path, name);
+ }
+
+ STACK_WIND (frame,
+ path_common_dict_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->getxattr,
+ loc,
+ tmp_name);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ if (tmp_name != name)
+ FREE (tmp_name);
+
+ return 0;
+}
+
+int32_t
+path_removexattr (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ const char *name)
+{
+ char *tmp_name = (char *)name;
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ if (ZR_FILE_CONTENT_REQUEST(name)) {
+ tmp_name = name_this_to_that (this, loc->path, name);
+ }
+
+ STACK_WIND (frame,
+ path_common_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->removexattr,
+ loc,
+ tmp_name);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ if (tmp_name != name)
+ FREE (tmp_name);
+
+ return 0;
+}
+
+int32_t
+path_opendir (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ fd_t *fd)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_opendir_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->opendir,
+ loc,
+ fd);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_access (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ int32_t mask)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_common_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->access,
+ loc,
+ mask);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_checksum_cbk (call_frame_t *frame,
+ void *cookie,
+ xlator_t *this,
+ int32_t op_ret,
+ int32_t op_errno,
+ uint8_t *fchecksum,
+ uint8_t *dchecksum)
+{
+ STACK_UNWIND (frame, op_ret, op_errno, fchecksum, dchecksum);
+ return 0;
+}
+
+int32_t
+path_checksum (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ int32_t flag)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_checksum_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->checksum,
+ loc,
+ flag);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+
+int32_t
+path_entrylk (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, const char *basename,
+ entrylk_cmd cmd, entrylk_type type)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame, path_common_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->entrylk,
+ loc, basename, cmd, type);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+int32_t
+path_inodelk (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int32_t cmd, struct flock *lock)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_common_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->inodelk,
+ loc, cmd, lock);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+
+int32_t
+path_xattrop (call_frame_t *frame,
+ xlator_t *this,
+ loc_t *loc,
+ gf_xattrop_flags_t flags,
+ dict_t *dict)
+{
+ char *loc_path = (char *)loc->path;
+ char *tmp_path = NULL;
+
+ if (!(tmp_path = path_this_to_that (this, loc->path))) {
+ STACK_UNWIND (frame, -1, ENOENT, NULL, NULL);
+ return 0;
+ }
+ loc->path = tmp_path;
+
+ STACK_WIND (frame,
+ path_common_dict_cbk,
+ FIRST_CHILD(this),
+ FIRST_CHILD(this)->fops->xattrop,
+ loc,
+ flags,
+ dict);
+
+ loc->path = loc_path;
+ if (tmp_path != loc_path)
+ FREE (tmp_path);
+
+ return 0;
+}
+
+
+int32_t
+init (xlator_t *this)
+{
+ dict_t *options = this->options;
+ path_private_t *priv = NULL;
+
+ if (!this->children || this->children->next) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "path translator requires exactly one subvolume");
+ return -1;
+ }
+
+ if (!this->parents) {
+ gf_log (this->name, GF_LOG_WARNING,
+ "dangling volume. check volfile ");
+ }
+
+ priv = CALLOC (1, sizeof (*priv));
+ ERR_ABORT (priv);
+ if (dict_get (options, "start-offset")) {
+ priv->start_off = data_to_int32 (dict_get (options,
+ "start-offset"));
+ }
+ if (dict_get (options, "end-offset")) {
+ priv->end_off = data_to_int32 (dict_get (options,
+ "end-offset"));
+ }
+
+ if (dict_get (options, "regex")) {
+ int32_t ret = 0;
+ priv->preg = CALLOC (1, sizeof (regex_t));
+ ERR_ABORT (priv->preg);
+ ret = regcomp (priv->preg,
+ data_to_str (dict_get (options, "regex")),
+ REG_EXTENDED);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to compile the 'option regex'");
+ FREE (priv);
+ return -1;
+ }
+ if (dict_get (options, "replace-with")) {
+ priv->that = data_to_str (dict_get (options,
+ "replace-with"));
+ } else {
+ priv->that = "";
+ }
+ }
+
+ this->private = priv;
+ return 0;
+}
+
+void
+fini (xlator_t *this)
+{
+ return;
+}
+
+struct xlator_fops fops = {
+ .stat = path_stat,
+ .readlink = path_readlink,
+ .mknod = path_mknod,
+ .mkdir = path_mkdir,
+ .unlink = path_unlink,
+ .rmdir = path_rmdir,
+ .symlink = path_symlink,
+ .rename = path_rename,
+ .link = path_link,
+ .chmod = path_chmod,
+ .chown = path_chown,
+ .truncate = path_truncate,
+ .utimens = path_utimens,
+ .open = path_open,
+ .setxattr = path_setxattr,
+ .getxattr = path_getxattr,
+ .removexattr = path_removexattr,
+ .opendir = path_opendir,
+ .access = path_access,
+ .create = path_create,
+ .lookup = path_lookup,
+ .checksum = path_checksum,
+ .xattrop = path_xattrop,
+ .entrylk = path_entrylk,
+ .inodelk = path_inodelk,
+};
+
+
+struct xlator_mops mops = {
+};
+
+
+struct xlator_cbks cbks = {
+};
+
+struct volume_options options[] = {
+ { .key = {"start-offset"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = 0,
+ .max = 4095
+ },
+ { .key = {"end-offset"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = 1,
+ .max = 4096
+ },
+ { .key = {"replace-with"},
+ .type = GF_OPTION_TYPE_ANY
+ },
+ { .key = {NULL} },
+};