summaryrefslogtreecommitdiffstats
path: root/xlators/storage/posix/src/posix-helpers.c
diff options
context:
space:
mode:
Diffstat (limited to 'xlators/storage/posix/src/posix-helpers.c')
-rw-r--r--xlators/storage/posix/src/posix-helpers.c887
1 files changed, 887 insertions, 0 deletions
diff --git a/xlators/storage/posix/src/posix-helpers.c b/xlators/storage/posix/src/posix-helpers.c
new file mode 100644
index 00000000000..7b130d4b918
--- /dev/null
+++ b/xlators/storage/posix/src/posix-helpers.c
@@ -0,0 +1,887 @@
+/*
+ Copyright (c) 2006-2011 Gluster, Inc. <http://www.gluster.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 Affero 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
+ Affero General Public License for more details.
+
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#define __XOPEN_SOURCE 500
+
+#include <stdint.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <errno.h>
+#include <libgen.h>
+#include <pthread.h>
+#include <ftw.h>
+#include <sys/stat.h>
+
+#ifndef GF_BSD_HOST_OS
+#include <alloca.h>
+#endif /* GF_BSD_HOST_OS */
+
+#include "glusterfs.h"
+#include "md5.h"
+#include "checksum.h"
+#include "dict.h"
+#include "logging.h"
+#include "posix.h"
+#include "xlator.h"
+#include "defaults.h"
+#include "common-utils.h"
+#include "compat-errno.h"
+#include "compat.h"
+#include "byte-order.h"
+#include "syscall.h"
+#include "statedump.h"
+#include "locking.h"
+#include "timer.h"
+#include "glusterfs3-xdr.h"
+#include "hashfn.h"
+
+
+typedef struct {
+ xlator_t *this;
+ const char *real_path;
+ dict_t *xattr;
+ struct iatt *stbuf;
+ loc_t *loc;
+} posix_xattr_filler_t;
+
+
+static void
+_posix_xattr_get_set (dict_t *xattr_req,
+ char *key,
+ data_t *data,
+ void *xattrargs)
+{
+ posix_xattr_filler_t *filler = xattrargs;
+ char *value = NULL;
+ ssize_t xattr_size = -1;
+ int ret = -1;
+ char *databuf = NULL;
+ int _fd = -1;
+ loc_t *loc = NULL;
+ ssize_t req_size = 0;
+
+
+ if (!strcmp (key, "gfid-req"))
+ return;
+ /* should size be put into the data_t ? */
+ if (!strcmp (key, GF_CONTENT_KEY)
+ && IA_ISREG (filler->stbuf->ia_type)) {
+
+ /* file content request */
+ req_size = data_to_uint64 (data);
+ if (req_size >= filler->stbuf->ia_size) {
+ _fd = open (filler->real_path, O_RDONLY);
+ if (_fd == -1) {
+ gf_log (filler->this->name, GF_LOG_ERROR,
+ "Opening file %s failed: %s",
+ filler->real_path, strerror (errno));
+ goto err;
+ }
+
+ databuf = GF_CALLOC (1, filler->stbuf->ia_size,
+ gf_posix_mt_char);
+ if (!databuf) {
+ goto err;
+ }
+
+ ret = read (_fd, databuf, filler->stbuf->ia_size);
+ if (ret == -1) {
+ gf_log (filler->this->name, GF_LOG_ERROR,
+ "Read on file %s failed: %s",
+ filler->real_path, strerror (errno));
+ goto err;
+ }
+
+ ret = close (_fd);
+ _fd = -1;
+ if (ret == -1) {
+ gf_log (filler->this->name, GF_LOG_ERROR,
+ "Close on file %s failed: %s",
+ filler->real_path, strerror (errno));
+ goto err;
+ }
+
+ ret = dict_set_bin (filler->xattr, key,
+ databuf, filler->stbuf->ia_size);
+ if (ret < 0) {
+ gf_log (filler->this->name, GF_LOG_ERROR,
+ "failed to set dict value. key: %s, path: %s",
+ key, filler->real_path);
+ goto err;
+ }
+
+ /* To avoid double free in cleanup below */
+ databuf = NULL;
+ err:
+ if (_fd != -1)
+ close (_fd);
+ if (databuf)
+ GF_FREE (databuf);
+ }
+ } else if (!strcmp (key, GLUSTERFS_OPEN_FD_COUNT)) {
+ loc = filler->loc;
+ if (!list_empty (&loc->inode->fd_list)) {
+ ret = dict_set_uint32 (filler->xattr, key, 1);
+ if (ret < 0)
+ gf_log (filler->this->name, GF_LOG_WARNING,
+ "Failed to set dictionary value for %s",
+ key);
+ } else {
+ ret = dict_set_uint32 (filler->xattr, key, 0);
+ if (ret < 0)
+ gf_log (filler->this->name, GF_LOG_WARNING,
+ "Failed to set dictionary value for %s",
+ key);
+ }
+ } else {
+ xattr_size = sys_lgetxattr (filler->real_path, key, NULL, 0);
+
+ if (xattr_size > 0) {
+ value = GF_CALLOC (1, xattr_size + 1,
+ gf_posix_mt_char);
+ if (!value)
+ return;
+
+ sys_lgetxattr (filler->real_path, key, value,
+ xattr_size);
+
+ value[xattr_size] = '\0';
+ ret = dict_set_bin (filler->xattr, key,
+ value, xattr_size);
+ if (ret < 0)
+ gf_log (filler->this->name, GF_LOG_DEBUG,
+ "dict set failed. path: %s, key: %s",
+ filler->real_path, key);
+ }
+ }
+}
+
+
+int
+posix_fill_gfid_path (xlator_t *this, const char *path, struct iatt *iatt)
+{
+ int ret = 0;
+
+ if (!iatt)
+ return 0;
+
+ ret = sys_lgetxattr (path, GFID_XATTR_KEY, iatt->ia_gfid, 16);
+ /* Return value of getxattr */
+ if (ret == 16)
+ ret = 0;
+
+ return ret;
+}
+
+
+int
+posix_fill_gfid_fd (xlator_t *this, int fd, struct iatt *iatt)
+{
+ int ret = 0;
+
+ if (!iatt)
+ return 0;
+
+ ret = sys_fgetxattr (fd, GFID_XATTR_KEY, iatt->ia_gfid, 16);
+ /* Return value of getxattr */
+ if (ret == 16)
+ ret = 0;
+
+ return ret;
+}
+
+void
+posix_fill_ino_from_gfid (xlator_t *this, struct iatt *buf)
+{
+ uint64_t temp_ino = 0;
+ int j = 0;
+ int i = 0;
+
+ /* consider least significant 8 bytes of value out of gfid */
+ for (i = 15; i > (15 - 8); i--) {
+ temp_ino += buf->ia_gfid[i] << j;
+ j += 8;
+ }
+
+ buf->ia_ino = temp_ino;
+}
+
+int
+posix_lstat_with_gfid (xlator_t *this, const char *path, struct iatt *stbuf_p)
+{
+ struct posix_private *priv = NULL;
+ int ret = 0;
+ struct stat lstatbuf = {0, };
+ struct iatt stbuf = {0, };
+
+ priv = this->private;
+
+ ret = lstat (path, &lstatbuf);
+ if (ret == -1)
+ goto out;
+
+ iatt_from_stat (&stbuf, &lstatbuf);
+
+ ret = posix_fill_gfid_path (this, path, &stbuf);
+ if (ret)
+ gf_log_callingfn (this->name, GF_LOG_DEBUG, "failed to get gfid");
+
+ posix_fill_ino_from_gfid (this, &stbuf);
+
+ if (stbuf_p)
+ *stbuf_p = stbuf;
+out:
+ return ret;
+}
+
+
+int
+posix_fstat_with_gfid (xlator_t *this, int fd, struct iatt *stbuf_p)
+{
+ struct posix_private *priv = NULL;
+ int ret = 0;
+ struct stat fstatbuf = {0, };
+ struct iatt stbuf = {0, };
+
+ priv = this->private;
+
+ ret = fstat (fd, &fstatbuf);
+ if (ret == -1)
+ goto out;
+
+ iatt_from_stat (&stbuf, &fstatbuf);
+
+ ret = posix_fill_gfid_fd (this, fd, &stbuf);
+ if (ret)
+ gf_log_callingfn (this->name, GF_LOG_DEBUG, "failed to get gfid");
+
+ posix_fill_ino_from_gfid (this, &stbuf);
+
+ if (stbuf_p)
+ *stbuf_p = stbuf;
+
+out:
+ return ret;
+}
+
+
+dict_t *
+posix_lookup_xattr_fill (xlator_t *this, const char *real_path, loc_t *loc,
+ dict_t *xattr_req, struct iatt *buf)
+{
+ dict_t *xattr = NULL;
+ posix_xattr_filler_t filler = {0, };
+
+ xattr = get_new_dict();
+ if (!xattr) {
+ goto out;
+ }
+
+ filler.this = this;
+ filler.real_path = real_path;
+ filler.xattr = xattr;
+ filler.stbuf = buf;
+ filler.loc = loc;
+
+ dict_foreach (xattr_req, _posix_xattr_get_set, &filler);
+out:
+ return xattr;
+}
+
+
+/*
+ * If the parent directory of {real_path} has the setgid bit set,
+ * then set {gid} to the gid of the parent. Otherwise,
+ * leave {gid} unchanged.
+ */
+
+int
+setgid_override (xlator_t *this, char *real_path, gid_t *gid)
+{
+ char * tmp_path = NULL;
+ char * parent_path = NULL;
+ struct iatt parent_stbuf;
+
+ int op_ret = 0;
+
+ tmp_path = gf_strdup (real_path);
+ if (!tmp_path) {
+ op_ret = -ENOMEM;
+ goto out;
+ }
+
+ parent_path = dirname (tmp_path);
+
+ op_ret = posix_lstat_with_gfid (this, parent_path, &parent_stbuf);
+ if (op_ret == -1) {
+ op_ret = -errno;
+ gf_log_callingfn (this->name, GF_LOG_ERROR,
+ "lstat on parent directory (%s) failed: %s",
+ parent_path, strerror (errno));
+ goto out;
+ }
+
+ if (parent_stbuf.ia_prot.sgid) {
+ /*
+ * Entries created inside a setgid directory
+ * should inherit the gid from the parent
+ */
+
+ *gid = parent_stbuf.ia_gid;
+ }
+out:
+
+ if (tmp_path)
+ GF_FREE (tmp_path);
+
+ return op_ret;
+}
+
+
+int
+posix_gfid_set (xlator_t *this, const char *path, dict_t *xattr_req)
+{
+ void *uuid_req = NULL;
+ uuid_t uuid_curr;
+ int ret = 0;
+ struct stat stat = {0, };
+
+ if (!xattr_req)
+ goto out;
+
+ if (sys_lstat (path, &stat) != 0)
+ goto out;
+
+ ret = sys_lgetxattr (path, GFID_XATTR_KEY, uuid_curr, 16);
+ if (ret == 16) {
+ ret = 0;
+ goto out;
+ }
+
+ ret = dict_get_ptr (xattr_req, "gfid-req", &uuid_req);
+ if (ret) {
+ gf_log_callingfn (this->name, GF_LOG_DEBUG,
+ "failed to get the gfid from dict");
+ goto out;
+ }
+
+ ret = sys_lsetxattr (path, GFID_XATTR_KEY, uuid_req, 16, XATTR_CREATE);
+
+out:
+ return ret;
+}
+
+
+int
+posix_set_file_contents (xlator_t *this, char *real_path,
+ data_pair_t *trav, int flags)
+{
+ char * key = NULL;
+ char real_filepath[ZR_PATH_MAX] = {0,};
+ int32_t file_fd = -1;
+ int op_ret = 0;
+ int ret = -1;
+
+ key = &(trav->key[15]);
+ sprintf (real_filepath, "%s/%s", real_path, key);
+
+ if (flags & XATTR_REPLACE) {
+ /* if file exists, replace it
+ * else, error out */
+ file_fd = open (real_filepath, O_TRUNC|O_WRONLY);
+
+ if (file_fd == -1) {
+ goto create;
+ }
+
+ if (trav->value->len) {
+ ret = write (file_fd, trav->value->data,
+ trav->value->len);
+ if (ret == -1) {
+ op_ret = -errno;
+ gf_log (this->name, GF_LOG_ERROR,
+ "write failed while doing setxattr "
+ "for key %s on path %s: %s",
+ key, real_filepath, strerror (errno));
+ goto out;
+ }
+
+ ret = close (file_fd);
+ if (ret == -1) {
+ op_ret = -errno;
+ gf_log (this->name, GF_LOG_ERROR,
+ "close failed on %s: %s",
+ real_filepath, strerror (errno));
+ goto out;
+ }
+ }
+
+ create: /* we know file doesn't exist, create it */
+
+ file_fd = open (real_filepath, O_CREAT|O_WRONLY, 0644);
+
+ if (file_fd == -1) {
+ op_ret = -errno;
+ gf_log (this->name, GF_LOG_ERROR,
+ "failed to open file %s with O_CREAT: %s",
+ key, strerror (errno));
+ goto out;
+ }
+
+ ret = write (file_fd, trav->value->data, trav->value->len);
+ if (ret == -1) {
+ op_ret = -errno;
+ gf_log (this->name, GF_LOG_ERROR,
+ "write failed on %s while setxattr with "
+ "key %s: %s",
+ real_filepath, key, strerror (errno));
+ goto out;
+ }
+
+ ret = close (file_fd);
+ if (ret == -1) {
+ op_ret = -errno;
+ gf_log (this->name, GF_LOG_ERROR,
+ "close failed on %s while setxattr with "
+ "key %s: %s",
+ real_filepath, key, strerror (errno));
+ goto out;
+ }
+ }
+
+out:
+ return op_ret;
+}
+
+
+int
+posix_get_file_contents (xlator_t *this, char *real_path,
+ const char *name, char **contents)
+{
+ char real_filepath[ZR_PATH_MAX] = {0,};
+ char * key = NULL;
+ int32_t file_fd = -1;
+ struct iatt stbuf = {0,};
+ int op_ret = 0;
+ int ret = -1;
+
+ key = (char *) &(name[15]);
+ sprintf (real_filepath, "%s/%s", real_path, key);
+
+ op_ret = posix_lstat_with_gfid (this, real_filepath, &stbuf);
+ if (op_ret == -1) {
+ op_ret = -errno;
+ gf_log (this->name, GF_LOG_ERROR, "lstat failed on %s: %s",
+ real_filepath, strerror (errno));
+ goto out;
+ }
+
+ file_fd = open (real_filepath, O_RDONLY);
+
+ if (file_fd == -1) {
+ op_ret = -errno;
+ gf_log (this->name, GF_LOG_ERROR, "open failed on %s: %s",
+ real_filepath, strerror (errno));
+ goto out;
+ }
+
+ *contents = GF_CALLOC (stbuf.ia_size + 1, sizeof(char),
+ gf_posix_mt_char);
+ if (! *contents) {
+ op_ret = -errno;
+ goto out;
+ }
+
+ ret = read (file_fd, *contents, stbuf.ia_size);
+ if (ret <= 0) {
+ op_ret = -1;
+ gf_log (this->name, GF_LOG_ERROR, "read on %s failed: %s",
+ real_filepath, strerror (errno));
+ goto out;
+ }
+
+ *contents[stbuf.ia_size] = '\0';
+
+ op_ret = close (file_fd);
+ file_fd = -1;
+ if (op_ret == -1) {
+ op_ret = -errno;
+ gf_log (this->name, GF_LOG_ERROR, "close on %s failed: %s",
+ real_filepath, strerror (errno));
+ goto out;
+ }
+
+out:
+ if (op_ret < 0) {
+ if (*contents)
+ GF_FREE (*contents);
+ if (file_fd != -1)
+ close (file_fd);
+ }
+
+ return op_ret;
+}
+
+static int gf_xattr_enotsup_log;
+
+int
+posix_handle_pair (xlator_t *this, char *real_path,
+ data_pair_t *trav, int flags)
+{
+ int sys_ret = -1;
+ int ret = 0;
+
+ if (ZR_FILE_CONTENT_REQUEST(trav->key)) {
+ ret = posix_set_file_contents (this, real_path, trav, flags);
+ } else {
+ sys_ret = sys_lsetxattr (real_path, trav->key,
+ trav->value->data,
+ trav->value->len, flags);
+
+ if (sys_ret < 0) {
+ if (errno == ENOTSUP) {
+ GF_LOG_OCCASIONALLY(gf_xattr_enotsup_log,
+ this->name,GF_LOG_WARNING,
+ "Extended attributes not "
+ "supported");
+ } else if (errno == ENOENT) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "setxattr on %s failed: %s", real_path,
+ strerror (errno));
+ } else {
+
+#ifdef GF_DARWIN_HOST_OS
+ gf_log (this->name,
+ ((errno == EINVAL) ?
+ GF_LOG_DEBUG : GF_LOG_ERROR),
+ "%s: key:%s error:%s",
+ real_path, trav->key,
+ strerror (errno));
+#else /* ! DARWIN */
+ gf_log (this->name, GF_LOG_ERROR,
+ "%s: key:%s error:%s",
+ real_path, trav->key,
+ strerror (errno));
+#endif /* DARWIN */
+ }
+
+ ret = -errno;
+ goto out;
+ }
+ }
+out:
+ return ret;
+}
+
+int
+posix_fhandle_pair (xlator_t *this, int fd,
+ data_pair_t *trav, int flags)
+{
+ int sys_ret = -1;
+ int ret = 0;
+
+ sys_ret = sys_fsetxattr (fd, trav->key, trav->value->data,
+ trav->value->len, flags);
+
+ if (sys_ret < 0) {
+ if (errno == ENOTSUP) {
+ GF_LOG_OCCASIONALLY(gf_xattr_enotsup_log,
+ this->name,GF_LOG_WARNING,
+ "Extended attributes not "
+ "supported");
+ } else if (errno == ENOENT) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "fsetxattr on fd=%d failed: %s", fd,
+ strerror (errno));
+ } else {
+
+#ifdef GF_DARWIN_HOST_OS
+ gf_log (this->name,
+ ((errno == EINVAL) ?
+ GF_LOG_DEBUG : GF_LOG_ERROR),
+ "fd=%d: key:%s error:%s",
+ fd, trav->key,
+ strerror (errno));
+#else /* ! DARWIN */
+ gf_log (this->name, GF_LOG_ERROR,
+ "fd=%d: key:%s error:%s",
+ fd, trav->key,
+ strerror (errno));
+#endif /* DARWIN */
+ }
+
+ ret = -errno;
+ goto out;
+ }
+
+out:
+ return ret;
+}
+
+
+static int
+janitor_walker (const char *fpath, const struct stat *sb,
+ int typeflag, struct FTW *ftwbuf)
+{
+ switch (sb->st_mode & S_IFMT) {
+ case S_IFREG:
+ case S_IFBLK:
+ case S_IFLNK:
+ case S_IFCHR:
+ case S_IFIFO:
+ case S_IFSOCK:
+ gf_log (THIS->name, GF_LOG_TRACE,
+ "unlinking %s", fpath);
+ unlink (fpath);
+ break;
+
+ case S_IFDIR:
+ if (ftwbuf->level) { /* don't remove top level dir */
+ gf_log (THIS->name, GF_LOG_TRACE,
+ "removing directory %s", fpath);
+
+ rmdir (fpath);
+ }
+ break;
+ }
+
+ return 0; /* 0 = FTW_CONTINUE */
+}
+
+
+static struct posix_fd *
+janitor_get_next_fd (xlator_t *this)
+{
+ struct posix_private *priv = NULL;
+ struct posix_fd *pfd = NULL;
+
+ struct timespec timeout;
+
+ priv = this->private;
+
+ pthread_mutex_lock (&priv->janitor_lock);
+ {
+ if (list_empty (&priv->janitor_fds)) {
+ time (&timeout.tv_sec);
+ timeout.tv_sec += priv->janitor_sleep_duration;
+ timeout.tv_nsec = 0;
+
+ pthread_cond_timedwait (&priv->janitor_cond,
+ &priv->janitor_lock,
+ &timeout);
+ goto unlock;
+ }
+
+ pfd = list_entry (priv->janitor_fds.next, struct posix_fd,
+ list);
+
+ list_del (priv->janitor_fds.next);
+ }
+unlock:
+ pthread_mutex_unlock (&priv->janitor_lock);
+
+ return pfd;
+}
+
+
+static void *
+posix_janitor_thread_proc (void *data)
+{
+ xlator_t * this = NULL;
+ struct posix_private *priv = NULL;
+ struct posix_fd *pfd;
+
+ time_t now;
+
+ this = data;
+ priv = this->private;
+
+ THIS = this;
+
+ while (1) {
+ time (&now);
+ if ((now - priv->last_landfill_check) > priv->janitor_sleep_duration) {
+ gf_log (this->name, GF_LOG_TRACE,
+ "janitor cleaning out /" GF_REPLICATE_TRASH_DIR);
+
+ nftw (priv->trash_path,
+ janitor_walker,
+ 32,
+ FTW_DEPTH | FTW_PHYS);
+
+ priv->last_landfill_check = now;
+ }
+
+ pfd = janitor_get_next_fd (this);
+ if (pfd) {
+ if (pfd->dir == NULL) {
+ gf_log (this->name, GF_LOG_TRACE,
+ "janitor: closing file fd=%d", pfd->fd);
+ close (pfd->fd);
+ } else {
+ gf_log (this->name, GF_LOG_TRACE,
+ "janitor: closing dir fd=%p", pfd->dir);
+ closedir (pfd->dir);
+ }
+
+ if (pfd->path)
+ GF_FREE (pfd->path);
+
+ GF_FREE (pfd);
+ }
+ }
+
+ return NULL;
+}
+
+
+void
+posix_spawn_janitor_thread (xlator_t *this)
+{
+ struct posix_private *priv = NULL;
+ int ret = 0;
+
+ priv = this->private;
+
+ LOCK (&priv->lock);
+ {
+ if (!priv->janitor_present) {
+ ret = pthread_create (&priv->janitor, NULL,
+ posix_janitor_thread_proc, this);
+
+ if (ret < 0) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "spawning janitor thread failed: %s",
+ strerror (errno));
+ goto unlock;
+ }
+
+ priv->janitor_present = _gf_true;
+ }
+ }
+unlock:
+ UNLOCK (&priv->lock);
+}
+
+static int
+is_fresh_file (struct stat *stat)
+{
+ struct timeval tv;
+
+ gettimeofday (&tv, NULL);
+
+ if ((stat->st_ctime >= (tv.tv_sec - 1))
+ && (stat->st_ctime <= tv.tv_sec))
+ return 1;
+
+ return 0;
+}
+
+
+int
+posix_gfid_heal (xlator_t *this, const char *path, dict_t *xattr_req)
+{
+ /* The purpose of this function is to prevent a race
+ where an inode creation FOP (like mkdir/mknod/create etc)
+ races with lookup in the following way:
+
+ {create thread} | {lookup thread}
+ |
+ t0
+ mkdir ("name") |
+ t1
+ | posix_gfid_set ("name", 2);
+ t2
+ posix_gfid_set ("name", 1); |
+ t3
+ lstat ("name"); | lstat ("name");
+
+ In the above case mkdir FOP would have resulted with GFID 2 while
+ it should have been GFID 1. It matters in the case where GFID would
+ have gotten set to 1 on other subvolumes of replciate/distribute
+
+ The "solution" here is that, if we detect lookup is attempting to
+ set a GFID on a file which is created very recently, but does not
+ yet have a GFID (i.e, between t1 and t2), then "fake" it as though
+ posix_gfid_heal was called at t0 instead.
+ */
+
+ uuid_t uuid_curr;
+ int ret = 0;
+ struct stat stat = {0, };
+
+ if (!xattr_req)
+ goto out;
+
+ if (sys_lstat (path, &stat) != 0)
+ goto out;
+
+ ret = sys_lgetxattr (path, GFID_XATTR_KEY, uuid_curr, 16);
+ if (ret != 16) {
+ if (is_fresh_file (&stat)) {
+ ret = -1;
+ errno = ENOENT;
+ goto out;
+ }
+ }
+
+ ret = posix_gfid_set (this, path, xattr_req);
+out:
+ return ret;
+}
+
+
+int
+posix_acl_xattr_set (xlator_t *this, const char *path, dict_t *xattr_req)
+{
+ int ret = 0;
+ data_t *data = NULL;
+ struct stat stat = {0, };
+
+ if (!xattr_req)
+ goto out;
+
+ if (sys_lstat (path, &stat) != 0)
+ goto out;
+
+ data = dict_get (xattr_req, "system.posix_acl_access");
+ if (data) {
+ ret = sys_lsetxattr (path, "system.posix_acl_access",
+ data->data, data->len, 0);
+ if (ret != 0)
+ goto out;
+ }
+
+ data = dict_get (xattr_req, "system.posix_acl_default");
+ if (data) {
+ ret = sys_lsetxattr (path, "system.posix_acl_default",
+ data->data, data->len, 0);
+ if (ret != 0)
+ goto out;
+ }
+
+out:
+ return ret;
+}
+
generated by cgit (git 2.34.1) at 2024-11-19 18:36:45 +0000