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-rw-r--r--xlators/storage/posix/src/Makefile.am5
-rw-r--r--xlators/storage/posix/src/posix-common.c1326
-rw-r--r--xlators/storage/posix/src/posix-entry-ops.c2125
-rw-r--r--xlators/storage/posix/src/posix-handle.c3
-rw-r--r--xlators/storage/posix/src/posix-handle.h108
-rw-r--r--xlators/storage/posix/src/posix-helpers.c35
-rw-r--r--xlators/storage/posix/src/posix-inode-fd-ops.c4975
-rw-r--r--xlators/storage/posix/src/posix-inode-handle.h106
-rw-r--r--xlators/storage/posix/src/posix.c8242
-rw-r--r--xlators/storage/posix/src/posix.h243
10 files changed, 8830 insertions, 8338 deletions
diff --git a/xlators/storage/posix/src/Makefile.am b/xlators/storage/posix/src/Makefile.am
index 8ec460578b5..17ea98016c9 100644
--- a/xlators/storage/posix/src/Makefile.am
+++ b/xlators/storage/posix/src/Makefile.am
@@ -5,12 +5,13 @@ xlatordir = $(libdir)/glusterfs/$(PACKAGE_VERSION)/xlator/storage
posix_la_LDFLAGS = -module $(GF_XLATOR_DEFAULT_LDFLAGS)
posix_la_SOURCES = posix.c posix-helpers.c posix-handle.c posix-aio.c \
- posix-gfid-path.c
+ posix-gfid-path.c posix-entry-ops.c posix-inode-fd-ops.c \
+ posix-common.c
posix_la_LIBADD = $(top_builddir)/libglusterfs/src/libglusterfs.la $(LIBAIO) \
$(ACL_LIBS)
noinst_HEADERS = posix.h posix-mem-types.h posix-handle.h posix-aio.h \
- posix-messages.h posix-gfid-path.h
+ posix-messages.h posix-gfid-path.h posix-inode-handle.h
AM_CPPFLAGS = $(GF_CPPFLAGS) -I$(top_srcdir)/libglusterfs/src \
-I$(top_srcdir)/rpc/xdr/src -I$(top_builddir)/rpc/xdr/src \
diff --git a/xlators/storage/posix/src/posix-common.c b/xlators/storage/posix/src/posix-common.c
new file mode 100644
index 00000000000..011bef8a720
--- /dev/null
+++ b/xlators/storage/posix/src/posix-common.c
@@ -0,0 +1,1326 @@
+/*
+ Copyright (c) 2006-2017 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.
+*/
+#define __XOPEN_SOURCE 500
+
+/* for SEEK_HOLE and SEEK_DATA */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <openssl/md5.h>
+#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>
+#include <signal.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include <ftw.h>
+
+#ifndef GF_BSD_HOST_OS
+#include <alloca.h>
+#endif /* GF_BSD_HOST_OS */
+
+#ifdef HAVE_LINKAT
+#include <fcntl.h>
+#endif /* HAVE_LINKAT */
+
+#include "glusterfs.h"
+#include "checksum.h"
+#include "dict.h"
+#include "logging.h"
+#include "posix.h"
+#include "posix-inode-handle.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"
+#include "posix-aio.h"
+#include "glusterfs-acl.h"
+#include "posix-messages.h"
+#include "events.h"
+#include "posix-gfid-path.h"
+#include "compat-uuid.h"
+
+extern char *marker_xattrs[];
+#define ALIGN_SIZE 4096
+
+#undef HAVE_SET_FSID
+#ifdef HAVE_SET_FSID
+
+#define DECLARE_OLD_FS_ID_VAR uid_t old_fsuid; gid_t old_fsgid;
+
+#define SET_FS_ID(uid, gid) do { \
+ old_fsuid = setfsuid (uid); \
+ old_fsgid = setfsgid (gid); \
+ } while (0)
+
+#define SET_TO_OLD_FS_ID() do { \
+ setfsuid (old_fsuid); \
+ setfsgid (old_fsgid); \
+ } while (0)
+
+#else
+
+#define DECLARE_OLD_FS_ID_VAR
+#define SET_FS_ID(uid, gid)
+#define SET_TO_OLD_FS_ID()
+
+#endif
+
+/* Setting microseconds or nanoseconds depending on what's supported:
+ The passed in `tv` can be
+ struct timespec
+ if supported (better, because it supports nanosecond resolution) or
+ struct timeval
+ otherwise. */
+#if HAVE_UTIMENSAT
+#define SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv, nanosecs) \
+ tv.tv_nsec = nanosecs
+#define PATH_SET_TIMESPEC_OR_TIMEVAL(path, tv) \
+ (sys_utimensat (AT_FDCWD, path, tv, AT_SYMLINK_NOFOLLOW))
+#else
+#define SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv, nanosecs) \
+ tv.tv_usec = nanosecs / 1000
+#define PATH_SET_TIMESPEC_OR_TIMEVAL(path, tv) \
+ (lutimes (path, tv))
+#endif
+
+int32_t
+posix_priv (xlator_t *this)
+{
+ struct posix_private *priv = NULL;
+ char key_prefix[GF_DUMP_MAX_BUF_LEN];
+
+ (void) snprintf(key_prefix, GF_DUMP_MAX_BUF_LEN, "%s.%s",
+ this->type, this->name);
+ gf_proc_dump_add_section(key_prefix);
+
+ if (!this)
+ return 0;
+
+ priv = this->private;
+
+ if (!priv)
+ return 0;
+
+ gf_proc_dump_write("base_path", "%s", priv->base_path);
+ gf_proc_dump_write("base_path_length", "%d", priv->base_path_length);
+ gf_proc_dump_write("max_read", "%d", priv->read_value);
+ gf_proc_dump_write("max_write", "%d", priv->write_value);
+ gf_proc_dump_write("nr_files", "%ld", priv->nr_files);
+
+ return 0;
+}
+
+int32_t
+posix_inode (xlator_t *this)
+{
+ return 0;
+}
+
+/**
+ * notify - when parent sends PARENT_UP, send CHILD_UP event from here
+ */
+int32_t
+posix_notify (xlator_t *this,
+ int32_t event,
+ void *data,
+ ...)
+{
+ struct posix_private *priv = NULL;
+
+ priv = this->private;
+ switch (event)
+ {
+ case GF_EVENT_PARENT_UP:
+ {
+ /* Tell the parent that posix xlator is up */
+ default_notify (this, GF_EVENT_CHILD_UP, data);
+ }
+ break;
+ case GF_EVENT_CLEANUP:
+ if (priv->health_check) {
+ priv->health_check_active = _gf_false;
+ pthread_cancel (priv->health_check);
+ priv->health_check = 0;
+ }
+ if (priv->disk_space_check) {
+ priv->disk_space_check_active = _gf_false;
+ pthread_cancel (priv->disk_space_check);
+ priv->disk_space_check = 0;
+ }
+ if (priv->janitor) {
+ (void) gf_thread_cleanup_xint (priv->janitor);
+ priv->janitor = 0;
+ }
+ if (priv->fsyncer) {
+ (void) gf_thread_cleanup_xint (priv->fsyncer);
+ priv->fsyncer = 0;
+ }
+ if (priv->mount_lock) {
+ (void) sys_closedir (priv->mount_lock);
+ priv->mount_lock = NULL;
+ }
+
+ break;
+ default:
+ /* */
+ break;
+ }
+ return 0;
+}
+
+int32_t
+mem_acct_init (xlator_t *this)
+{
+ int ret = -1;
+
+ if (!this)
+ return ret;
+
+ ret = xlator_mem_acct_init (this, gf_posix_mt_end + 1);
+
+ if (ret != 0) {
+ return ret;
+ }
+
+ return ret;
+}
+
+static int
+posix_set_owner (xlator_t *this, uid_t uid, gid_t gid)
+{
+ struct posix_private *priv = NULL;
+ int ret = -1;
+ struct stat st = {0,};
+
+ priv = this->private;
+
+ ret = sys_lstat (priv->base_path, &st);
+ if (ret) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_DIR_OPERATION_FAILED, "Failed to stat "
+ "brick path %s",
+ priv->base_path);
+ return ret;
+ }
+
+ if ((uid == -1 || st.st_uid == uid) &&
+ (gid == -1 || st.st_gid == gid))
+ return 0;
+
+ ret = sys_chown (priv->base_path, uid, gid);
+ if (ret)
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_DIR_OPERATION_FAILED, "Failed to set uid/gid for"
+ " brick path %s", priv->base_path);
+
+ return ret;
+}
+static int
+set_gfid2path_separator (struct posix_private *priv, const char *str)
+{
+ int str_len = 0;
+
+ str_len = strlen(str);
+ if (str_len > 0 && str_len < 8) {
+ strcpy (priv->gfid2path_sep, str);
+ return 0;
+ }
+
+ return -1;
+}
+
+static int
+set_batch_fsync_mode (struct posix_private *priv, const char *str)
+{
+ if (strcmp (str, "none") == 0)
+ priv->batch_fsync_mode = BATCH_NONE;
+ else if (strcmp (str, "syncfs") == 0)
+ priv->batch_fsync_mode = BATCH_SYNCFS;
+ else if (strcmp (str, "syncfs-single-fsync") == 0)
+ priv->batch_fsync_mode = BATCH_SYNCFS_SINGLE_FSYNC;
+ else if (strcmp (str, "syncfs-reverse-fsync") == 0)
+ priv->batch_fsync_mode = BATCH_SYNCFS_REVERSE_FSYNC;
+ else if (strcmp (str, "reverse-fsync") == 0)
+ priv->batch_fsync_mode = BATCH_REVERSE_FSYNC;
+ else
+ return -1;
+
+ return 0;
+}
+
+#ifdef GF_DARWIN_HOST_OS
+static int
+set_xattr_user_namespace_mode (struct posix_private *priv, const char *str)
+{
+ if (strcmp (str, "none") == 0)
+ priv->xattr_user_namespace = XATTR_NONE;
+ else if (strcmp (str, "strip") == 0)
+ priv->xattr_user_namespace = XATTR_STRIP;
+ else if (strcmp (str, "append") == 0)
+ priv->xattr_user_namespace = XATTR_APPEND;
+ else if (strcmp (str, "both") == 0)
+ priv->xattr_user_namespace = XATTR_BOTH;
+ else
+ return -1;
+ return 0;
+}
+#endif
+
+int
+posix_reconfigure (xlator_t *this, dict_t *options)
+{
+ int ret = -1;
+ struct posix_private *priv = NULL;
+ int32_t uid = -1;
+ int32_t gid = -1;
+ char *batch_fsync_mode_str = NULL;
+ char *gfid2path_sep = NULL;
+ int32_t force_create_mode = -1;
+ int32_t force_directory_mode = -1;
+ int32_t create_mask = -1;
+ int32_t create_directory_mask = -1;
+
+ priv = this->private;
+
+ GF_OPTION_RECONF ("brick-uid", uid, options, int32, out);
+ GF_OPTION_RECONF ("brick-gid", gid, options, int32, out);
+ if (uid != -1 || gid != -1)
+ posix_set_owner (this, uid, gid);
+
+ GF_OPTION_RECONF ("batch-fsync-delay-usec", priv->batch_fsync_delay_usec,
+ options, uint32, out);
+
+ GF_OPTION_RECONF ("batch-fsync-mode", batch_fsync_mode_str,
+ options, str, out);
+
+ if (set_batch_fsync_mode (priv, batch_fsync_mode_str) != 0) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_INVALID_ARGUMENT,
+ "Unknown mode string: %s", batch_fsync_mode_str);
+ goto out;
+ }
+
+ GF_OPTION_RECONF ("gfid2path-separator", gfid2path_sep, options,
+ str, out);
+ if (set_gfid2path_separator (priv, gfid2path_sep) != 0) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_INVALID_ARGUMENT,
+ "Length of separator exceeds 7: %s", gfid2path_sep);
+ goto out;
+ }
+
+#ifdef GF_DARWIN_HOST_OS
+
+ char *xattr_user_namespace_mode_str = NULL;
+
+ GF_OPTION_RECONF ("xattr-user-namespace-mode", xattr_user_namespace_mode_str,
+ options, str, out);
+
+ if (set_xattr_user_namespace_mode (priv, xattr_user_namespace_mode_str) != 0) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_UNKNOWN_ARGUMENT,
+ "Unknown xattr user namespace mode string: %s",
+ xattr_user_namespace_mode_str);
+ goto out;
+ }
+
+#endif
+
+ GF_OPTION_RECONF ("linux-aio", priv->aio_configured,
+ options, bool, out);
+
+ if (priv->aio_configured)
+ posix_aio_on (this);
+ else
+ posix_aio_off (this);
+
+ GF_OPTION_RECONF ("update-link-count-parent", priv->update_pgfid_nlinks,
+ options, bool, out);
+
+ GF_OPTION_RECONF ("gfid2path", priv->gfid2path,
+ options, bool, out);
+
+ GF_OPTION_RECONF ("node-uuid-pathinfo", priv->node_uuid_pathinfo,
+ options, bool, out);
+
+ if (priv->node_uuid_pathinfo &&
+ (gf_uuid_is_null (priv->glusterd_uuid))) {
+ gf_msg (this->name, GF_LOG_INFO, 0, P_MSG_UUID_NULL,
+ "glusterd uuid is NULL, pathinfo xattr would"
+ " fallback to <hostname>:<export>");
+ }
+
+ GF_OPTION_RECONF ("reserve", priv->disk_reserve,
+ options, uint32, out);
+ if (priv->disk_reserve)
+ posix_spawn_disk_space_check_thread (this);
+
+ GF_OPTION_RECONF ("health-check-interval", priv->health_check_interval,
+ options, uint32, out);
+ GF_OPTION_RECONF ("health-check-timeout", priv->health_check_timeout,
+ options, uint32, out);
+ posix_spawn_health_check_thread (this);
+
+ GF_OPTION_RECONF ("shared-brick-count", priv->shared_brick_count,
+ options, int32, out);
+ GF_OPTION_RECONF ("force-create-mode", force_create_mode,
+ options, int32, out);
+ priv->force_create_mode = force_create_mode;
+
+ GF_OPTION_RECONF ("force-directory-mode", force_directory_mode,
+ options, int32, out);
+ priv->force_directory_mode = force_directory_mode;
+
+ GF_OPTION_RECONF ("create-mask", create_mask,
+ options, int32, out);
+ priv->create_mask = create_mask;
+
+ GF_OPTION_RECONF ("create-directory-mask", create_directory_mask,
+ options, int32, out);
+ priv->create_directory_mask = create_directory_mask;
+
+ ret = 0;
+out:
+ return ret;
+}
+
+int32_t
+posix_delete_unlink_entry (const char *fpath, const struct stat *sb,
+ int typeflag, struct FTW *ftwbuf) {
+
+ int ret = 0;
+
+ if (!fpath)
+ goto out;
+
+ switch (typeflag) {
+ case FTW_SL:
+ case FTW_NS:
+ case FTW_F:
+ case FTW_SLN:
+ ret = sys_unlink(fpath);
+ break;
+ case FTW_D:
+ case FTW_DP:
+ case FTW_DNR:
+ if (ftwbuf->level != 0) {
+ ret = sys_rmdir(fpath);
+ }
+ break;
+ default:
+ break;
+ }
+ if (ret) {
+ gf_msg ("posix_delete_unlink_entry", GF_LOG_WARNING, errno,
+ P_MSG_HANDLE_CREATE,
+ "Deletion of entries %s failed"
+ "Please delete it manually",
+ fpath);
+ }
+out:
+ return 0;
+}
+
+int32_t
+posix_delete_unlink (const char *unlink_path) {
+
+ int ret = -1;
+ int flags = 0;
+
+ flags |= (FTW_DEPTH | FTW_PHYS);
+
+ ret = nftw(unlink_path, posix_delete_unlink_entry, 2, flags);
+ if (ret) {
+ gf_msg ("posix_delete_unlink", GF_LOG_ERROR, 0,
+ P_MSG_HANDLE_CREATE,
+ "Deleting files from %s failed",
+ unlink_path);
+ }
+ return ret;
+}
+
+int32_t
+posix_create_unlink_dir (xlator_t *this) {
+
+ struct posix_private *priv = NULL;
+ struct stat stbuf;
+ int ret = -1;
+ uuid_t gfid = {0};
+ char gfid_str[64] = {0};
+ char unlink_path[PATH_MAX] = {0,};
+ char landfill_path[PATH_MAX] = {0,};
+
+ priv = this->private;
+
+ (void) snprintf (unlink_path, sizeof(unlink_path), "%s/%s",
+ priv->base_path, GF_UNLINK_PATH);
+
+ gf_uuid_generate (gfid);
+ uuid_utoa_r (gfid, gfid_str);
+
+ (void) snprintf (landfill_path, sizeof(landfill_path), "%s/%s/%s",
+ priv->base_path, GF_LANDFILL_PATH, gfid_str);
+
+ ret = sys_stat (unlink_path, &stbuf);
+ switch (ret) {
+ case -1:
+ if (errno != ENOENT) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_HANDLE_CREATE,
+ "Checking for %s failed",
+ unlink_path);
+ return -1;
+ }
+ break;
+ case 0:
+ if (!S_ISDIR (stbuf.st_mode)) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_HANDLE_CREATE,
+ "Not a directory: %s",
+ unlink_path);
+ return -1;
+ }
+ ret = posix_delete_unlink (unlink_path);
+ return 0;
+ default:
+ break;
+ }
+ ret = sys_mkdir (unlink_path, 0600);
+ if (ret) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_HANDLE_CREATE,
+ "Creating directory %s failed",
+ unlink_path);
+ return -1;
+ }
+
+ return 0;
+}
+
+/**
+ * init -
+ */
+int
+posix_init (xlator_t *this)
+{
+ struct posix_private *_private = NULL;
+ data_t *dir_data = NULL;
+ data_t *tmp_data = NULL;
+ struct stat buf = {0,};
+ gf_boolean_t tmp_bool = 0;
+ int ret = 0;
+ int op_ret = -1;
+ int op_errno = 0;
+ ssize_t size = -1;
+ uuid_t old_uuid = {0,};
+ uuid_t dict_uuid = {0,};
+ uuid_t gfid = {0,};
+ uuid_t rootgfid = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1};
+ char *guuid = NULL;
+ int32_t uid = -1;
+ int32_t gid = -1;
+ char *batch_fsync_mode_str;
+ char *gfid2path_sep = NULL;
+ int force_create = -1;
+ int force_directory = -1;
+ int create_mask = -1;
+ int create_directory_mask = -1;
+
+ dir_data = dict_get (this->options, "directory");
+
+ if (this->children) {
+ gf_msg (this->name, GF_LOG_CRITICAL, 0, P_MSG_SUBVOLUME_ERROR,
+ "FATAL: storage/posix cannot have subvolumes");
+ ret = -1;
+ goto out;
+ }
+
+ if (!this->parents) {
+ gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_VOLUME_DANGLING,
+ "Volume is dangling. Please check the volume file.");
+ }
+
+ if (!dir_data) {
+ gf_msg (this->name, GF_LOG_CRITICAL, 0,
+ P_MSG_EXPORT_DIR_MISSING,
+ "Export directory not specified in volume file.");
+ ret = -1;
+ goto out;
+ }
+
+ umask (000); // umask `masking' is done at the client side
+
+ /* Check whether the specified directory exists, if not log it. */
+ op_ret = sys_stat (dir_data->data, &buf);
+ if ((op_ret != 0) || !S_ISDIR (buf.st_mode)) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_DIR_OPERATION_FAILED,
+ "Directory '%s' doesn't exist, exiting.",
+ dir_data->data);
+ ret = -1;
+ goto out;
+ }
+
+ _private = GF_CALLOC (1, sizeof (*_private),
+ gf_posix_mt_posix_private);
+ if (!_private) {
+ ret = -1;
+ goto out;
+ }
+
+ _private->base_path = gf_strdup (dir_data->data);
+ _private->base_path_length = strlen (_private->base_path);
+
+ ret = dict_get_str (this->options, "hostname", &_private->hostname);
+ if (ret) {
+ _private->hostname = GF_CALLOC (256, sizeof (char),
+ gf_common_mt_char);
+ if (!_private->hostname) {
+ goto out;
+ }
+ ret = gethostname (_private->hostname, 256);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_HOSTNAME_MISSING,
+ "could not find hostname ");
+ }
+ }
+
+ /* Check for Extended attribute support, if not present, log it */
+ op_ret = sys_lsetxattr (dir_data->data,
+ "trusted.glusterfs.test", "working", 8, 0);
+ if (op_ret != -1) {
+ sys_lremovexattr (dir_data->data, "trusted.glusterfs.test");
+ } else {
+ tmp_data = dict_get (this->options,
+ "mandate-attribute");
+ if (tmp_data) {
+ if (gf_string2boolean (tmp_data->data,
+ &tmp_bool) == -1) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_INVALID_OPTION,
+ "wrong option provided for key "
+ "\"mandate-attribute\"");
+ ret = -1;
+ goto out;
+ }
+ if (!tmp_bool) {
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_XATTR_NOTSUP,
+ "Extended attribute not supported, "
+ "starting as per option");
+ } else {
+ gf_msg (this->name, GF_LOG_CRITICAL, 0,
+ P_MSG_XATTR_NOTSUP,
+ "Extended attribute not supported, "
+ "exiting.");
+ ret = -1;
+ goto out;
+ }
+ } else {
+ gf_msg (this->name, GF_LOG_CRITICAL, 0,
+ P_MSG_XATTR_NOTSUP,
+ "Extended attribute not supported, exiting.");
+ ret = -1;
+ goto out;
+ }
+ }
+
+ tmp_data = dict_get (this->options, "volume-id");
+ if (tmp_data) {
+ op_ret = gf_uuid_parse (tmp_data->data, dict_uuid);
+ if (op_ret < 0) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_INVALID_VOLUME_ID,
+ "wrong volume-id (%s) set"
+ " in volume file", tmp_data->data);
+ ret = -1;
+ goto out;
+ }
+ size = sys_lgetxattr (dir_data->data,
+ "trusted.glusterfs.volume-id", old_uuid, 16);
+ if (size == 16) {
+ if (gf_uuid_compare (old_uuid, dict_uuid)) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_INVALID_VOLUME_ID,
+ "mismatching volume-id (%s) received. "
+ "already is a part of volume %s ",
+ tmp_data->data, uuid_utoa (old_uuid));
+ gf_event (EVENT_POSIX_ALREADY_PART_OF_VOLUME,
+ "volume-id=%s;brick=%s:%s",
+ uuid_utoa (old_uuid),
+ _private->hostname, _private->base_path);
+ ret = -1;
+ goto out;
+ }
+ } else if ((size == -1) &&
+ (errno == ENODATA || errno == ENOATTR)) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_VOLUME_ID_ABSENT,
+ "Extended attribute trusted.glusterfs."
+ "volume-id is absent");
+ gf_event (EVENT_POSIX_BRICK_NOT_IN_VOLUME,
+ "brick=%s:%s",
+ _private->hostname, _private->base_path);
+ ret = -1;
+ goto out;
+
+ } else if ((size == -1) && (errno != ENODATA) &&
+ (errno != ENOATTR)) {
+ /* Wrong 'volume-id' is set, it should be error */
+ gf_event (EVENT_POSIX_BRICK_VERIFICATION_FAILED,
+ "brick=%s:%s",
+ _private->hostname, _private->base_path);
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_VOLUME_ID_FETCH_FAILED,
+ "%s: failed to fetch volume-id",
+ dir_data->data);
+ ret = -1;
+ goto out;
+ } else {
+ ret = -1;
+ gf_event (EVENT_POSIX_BRICK_VERIFICATION_FAILED,
+ "brick=%s:%s",
+ _private->hostname, _private->base_path);
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_VOLUME_ID_FETCH_FAILED,
+ "failed to fetch proper volume id from export");
+ goto out;
+ }
+ }
+
+ /* Now check if the export directory has some other 'gfid',
+ other than that of root '/' */
+ size = sys_lgetxattr (dir_data->data, "trusted.gfid", gfid, 16);
+ if (size == 16) {
+ if (!__is_root_gfid (gfid)) {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_GFID_SET_FAILED,
+ "%s: gfid (%s) is not that of glusterfs '/' ",
+ dir_data->data, uuid_utoa (gfid));
+ ret = -1;
+ goto out;
+ }
+ } else if (size != -1) {
+ /* Wrong 'gfid' is set, it should be error */
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_GFID_SET_FAILED,
+ "%s: wrong value set as gfid",
+ dir_data->data);
+ ret = -1;
+ goto out;
+ } else if ((size == -1) && (errno != ENODATA) &&
+ (errno != ENOATTR)) {
+ /* Wrong 'gfid' is set, it should be error */
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_GFID_SET_FAILED,
+ "%s: failed to fetch gfid",
+ dir_data->data);
+ ret = -1;
+ goto out;
+ } else {
+ /* First time volume, set the GFID */
+ size = sys_lsetxattr (dir_data->data, "trusted.gfid", rootgfid,
+ 16, XATTR_CREATE);
+ if (size == -1) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_GFID_SET_FAILED,
+ "%s: failed to set gfid",
+ dir_data->data);
+ ret = -1;
+ goto out;
+ }
+ }
+
+ ret = 0;
+
+ size = sys_lgetxattr (dir_data->data, POSIX_ACL_ACCESS_XATTR,
+ NULL, 0);
+ if ((size < 0) && (errno == ENOTSUP)) {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_ACL_NOTSUP,
+ "Posix access control list is not supported.");
+ gf_event (EVENT_POSIX_ACL_NOT_SUPPORTED,
+ "brick=%s:%s", _private->hostname, _private->base_path);
+ }
+
+ /*
+ * _XOPEN_PATH_MAX is the longest file path len we MUST
+ * support according to POSIX standard. When prepended
+ * by the brick base path it may exceed backed filesystem
+ * capacity (which MAY be bigger than _XOPEN_PATH_MAX). If
+ * this is the case, chdir() to the brick base path and
+ * use relative paths when they are too long. See also
+ * MAKE_REAL_PATH in posix-handle.h
+ */
+ _private->path_max = pathconf(_private->base_path, _PC_PATH_MAX);
+ if (_private->path_max != -1 &&
+ _XOPEN_PATH_MAX + _private->base_path_length > _private->path_max) {
+ ret = chdir(_private->base_path);
+ if (ret) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_BASEPATH_CHDIR_FAILED,
+ "chdir() to \"%s\" failed",
+ _private->base_path);
+ goto out;
+ }
+#ifdef __NetBSD__
+ /*
+ * At least on NetBSD, the chdir() above uncovers a
+ * race condition which cause file lookup to fail
+ * with ENODATA for a few seconds. The volume quickly
+ * reaches a sane state, but regression tests are fast
+ * enough to choke on it. The reason is obscure (as
+ * often with race conditions), but sleeping here for
+ * a second seems to workaround the problem.
+ */
+ sleep(1);
+#endif
+ }
+
+
+ LOCK_INIT (&_private->lock);
+
+ _private->export_statfs = 1;
+ tmp_data = dict_get (this->options, "export-statfs-size");
+ if (tmp_data) {
+ if (gf_string2boolean (tmp_data->data,
+ &_private->export_statfs) == -1) {
+ ret = -1;
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_INVALID_OPTION_VAL,
+ "'export-statfs-size' takes only boolean "
+ "options");
+ goto out;
+ }
+ if (!_private->export_statfs)
+ gf_msg_debug (this->name, 0,
+ "'statfs()' returns dummy size");
+ }
+
+ _private->background_unlink = 0;
+ tmp_data = dict_get (this->options, "background-unlink");
+ if (tmp_data) {
+ if (gf_string2boolean (tmp_data->data,
+ &_private->background_unlink) == -1) {
+ ret = -1;
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_INVALID_OPTION_VAL, "'background-unlink'"
+ " takes only boolean options");
+ goto out;
+ }
+
+ if (_private->background_unlink)
+ gf_msg_debug (this->name, 0,
+ "unlinks will be performed in background");
+ }
+
+ tmp_data = dict_get (this->options, "o-direct");
+ if (tmp_data) {
+ if (gf_string2boolean (tmp_data->data,
+ &_private->o_direct) == -1) {
+ ret = -1;
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_INVALID_OPTION_VAL,
+ "wrong option provided for 'o-direct'");
+ goto out;
+ }
+ if (_private->o_direct)
+ gf_msg_debug (this->name, 0, "o-direct mode is enabled"
+ " (O_DIRECT for every open)");
+ }
+
+ tmp_data = dict_get (this->options, "update-link-count-parent");
+ if (tmp_data) {
+ if (gf_string2boolean (tmp_data->data,
+ &_private->update_pgfid_nlinks) == -1) {
+ ret = -1;
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_INVALID_OPTION, "wrong value provided "
+ "for 'update-link-count-parent'");
+ goto out;
+ }
+ if (_private->update_pgfid_nlinks)
+ gf_msg_debug (this->name, 0, "update-link-count-parent"
+ " is enabled. Thus for each file an "
+ "extended attribute representing the "
+ "number of hardlinks for that file "
+ "within the same parent directory is"
+ " set.");
+ }
+
+ ret = dict_get_str (this->options, "glusterd-uuid", &guuid);
+ if (!ret) {
+ if (gf_uuid_parse (guuid, _private->glusterd_uuid))
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_INVALID_NODE_UUID, "Cannot parse "
+ "glusterd (node) UUID, node-uuid xattr "
+ "request would return - \"No such attribute\"");
+ } else {
+ gf_msg_debug (this->name, 0, "No glusterd (node) UUID passed -"
+ " node-uuid xattr request will return \"No such"
+ " attribute\"");
+ }
+ ret = 0;
+
+ GF_OPTION_INIT ("janitor-sleep-duration",
+ _private->janitor_sleep_duration, int32, out);
+
+ /* performing open dir on brick dir locks the brick dir
+ * and prevents it from being unmounted
+ */
+ _private->mount_lock = sys_opendir (dir_data->data);
+ if (!_private->mount_lock) {
+ ret = -1;
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_DIR_OPERATION_FAILED,
+ "Could not lock brick directory (%s)",
+ strerror (op_errno));
+ goto out;
+ }
+#ifndef GF_DARWIN_HOST_OS
+ {
+ struct rlimit lim;
+ lim.rlim_cur = 1048576;
+ lim.rlim_max = 1048576;
+
+ if (setrlimit (RLIMIT_NOFILE, &lim) == -1) {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_SET_ULIMIT_FAILED,
+ "Failed to set 'ulimit -n "
+ " 1048576'");
+ lim.rlim_cur = 65536;
+ lim.rlim_max = 65536;
+
+ if (setrlimit (RLIMIT_NOFILE, &lim) == -1) {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_SET_FILE_MAX_FAILED,
+ "Failed to set maximum allowed open "
+ "file descriptors to 64k");
+ }
+ else {
+ gf_msg (this->name, GF_LOG_INFO, 0,
+ P_MSG_MAX_FILE_OPEN, "Maximum allowed "
+ "open file descriptors set to 65536");
+ }
+ }
+ }
+#endif
+ _private->shared_brick_count = 1;
+ ret = dict_get_int32 (this->options, "shared-brick-count",
+ &_private->shared_brick_count);
+ if (ret == -1) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_INVALID_OPTION_VAL,
+ "'shared-brick-count' takes only integer "
+ "values");
+ goto out;
+ }
+
+ this->private = (void *)_private;
+
+ op_ret = posix_handle_init (this);
+ if (op_ret == -1) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_HANDLE_CREATE,
+ "Posix handle setup failed");
+ ret = -1;
+ goto out;
+ }
+
+ op_ret = posix_handle_trash_init (this);
+ if (op_ret < 0) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_HANDLE_CREATE_TRASH,
+ "Posix landfill setup failed");
+ ret = -1;
+ goto out;
+ }
+
+ op_ret = posix_create_unlink_dir (this);
+ if (op_ret == -1) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_HANDLE_CREATE,
+ "Creation of unlink directory failed");
+ ret = -1;
+ goto out;
+ }
+
+ _private->aio_init_done = _gf_false;
+ _private->aio_capable = _gf_false;
+
+ GF_OPTION_INIT ("brick-uid", uid, int32, out);
+ GF_OPTION_INIT ("brick-gid", gid, int32, out);
+ if (uid != -1 || gid != -1)
+ posix_set_owner (this, uid, gid);
+
+ GF_OPTION_INIT ("linux-aio", _private->aio_configured, bool, out);
+
+ if (_private->aio_configured) {
+ op_ret = posix_aio_on (this);
+
+ if (op_ret == -1) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_POSIX_AIO,
+ "Posix AIO init failed");
+ ret = -1;
+ goto out;
+ }
+ }
+
+ GF_OPTION_INIT ("node-uuid-pathinfo",
+ _private->node_uuid_pathinfo, bool, out);
+ if (_private->node_uuid_pathinfo &&
+ (gf_uuid_is_null (_private->glusterd_uuid))) {
+ gf_msg (this->name, GF_LOG_INFO, 0, P_MSG_UUID_NULL,
+ "glusterd uuid is NULL, pathinfo xattr would"
+ " fallback to <hostname>:<export>");
+ }
+
+ _private->disk_space_check_active = _gf_false;
+ _private->disk_space_full = 0;
+ GF_OPTION_INIT ("reserve",
+ _private->disk_reserve, uint32, out);
+ if (_private->disk_reserve)
+ posix_spawn_disk_space_check_thread (this);
+
+ _private->health_check_active = _gf_false;
+ GF_OPTION_INIT ("health-check-interval",
+ _private->health_check_interval, uint32, out);
+ GF_OPTION_INIT ("health-check-timeout",
+ _private->health_check_timeout, uint32, out);
+ if (_private->health_check_interval)
+ posix_spawn_health_check_thread (this);
+
+ pthread_mutex_init (&_private->janitor_lock, NULL);
+ pthread_cond_init (&_private->janitor_cond, NULL);
+ INIT_LIST_HEAD (&_private->janitor_fds);
+
+ posix_spawn_janitor_thread (this);
+
+ pthread_mutex_init (&_private->fsync_mutex, NULL);
+ pthread_cond_init (&_private->fsync_cond, NULL);
+ INIT_LIST_HEAD (&_private->fsyncs);
+
+ ret = gf_thread_create (&_private->fsyncer, NULL, posix_fsyncer, this,
+ "posixfsy");
+ if (ret) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_FSYNCER_THREAD_CREATE_FAILED,
+ "fsyncer thread creation failed");
+ goto out;
+ }
+
+ GF_OPTION_INIT ("batch-fsync-mode", batch_fsync_mode_str, str, out);
+
+ if (set_batch_fsync_mode (_private, batch_fsync_mode_str) != 0) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_INVALID_ARGUMENT,
+ "Unknown mode string: %s", batch_fsync_mode_str);
+ goto out;
+ }
+
+ GF_OPTION_INIT ("gfid2path", _private->gfid2path, bool, out);
+
+ GF_OPTION_INIT ("gfid2path-separator", gfid2path_sep, str, out);
+ if (set_gfid2path_separator (_private, gfid2path_sep) != 0) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_INVALID_ARGUMENT,
+ "Length of separator exceeds 7: %s", gfid2path_sep);
+ goto out;
+ }
+
+#ifdef GF_DARWIN_HOST_OS
+
+ char *xattr_user_namespace_mode_str = NULL;
+
+ GF_OPTION_INIT ("xattr-user-namespace-mode",
+ xattr_user_namespace_mode_str, str, out);
+
+ if (set_xattr_user_namespace_mode (_private,
+ xattr_user_namespace_mode_str) != 0) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_INVALID_ARGUMENT,
+ "Unknown xattr user namespace mode string: %s",
+ xattr_user_namespace_mode_str);
+ goto out;
+ }
+#endif
+
+ GF_OPTION_INIT ("batch-fsync-delay-usec", _private->batch_fsync_delay_usec,
+ uint32, out);
+ GF_OPTION_INIT ("force-create-mode", force_create, int32, out);
+ _private->force_create_mode = force_create;
+
+ GF_OPTION_INIT ("force-directory-mode", force_directory, int32, out);
+ _private->force_directory_mode = force_directory;
+
+ GF_OPTION_INIT ("create-mask",
+ create_mask, int32, out);
+ _private->create_mask = create_mask;
+
+ GF_OPTION_INIT ("create-directory-mask",
+ create_directory_mask, int32, out);
+ _private->create_directory_mask = create_directory_mask;
+out:
+ if (ret) {
+ if (_private) {
+ GF_FREE (_private->base_path);
+
+ GF_FREE (_private->hostname);
+
+ GF_FREE (_private->trash_path);
+
+ GF_FREE (_private);
+ }
+
+ this->private = NULL;
+ }
+ return ret;
+}
+
+void
+posix_fini (xlator_t *this)
+{
+ struct posix_private *priv = this->private;
+ if (!priv)
+ return;
+ this->private = NULL;
+ /*unlock brick dir*/
+ if (priv->mount_lock)
+ (void) sys_closedir (priv->mount_lock);
+
+ GF_FREE (priv->base_path);
+ GF_FREE (priv->hostname);
+ GF_FREE (priv->trash_path);
+ GF_FREE (priv);
+
+ return;
+}
+
+struct volume_options options[] = {
+ { .key = {"o-direct"},
+ .type = GF_OPTION_TYPE_BOOL },
+ { .key = {"directory"},
+ .type = GF_OPTION_TYPE_PATH,
+ .default_value = "{{brick.path}}"
+ },
+ { .key = {"hostname"},
+ .type = GF_OPTION_TYPE_ANY },
+ { .key = {"export-statfs-size"},
+ .type = GF_OPTION_TYPE_BOOL },
+ { .key = {"mandate-attribute"},
+ .type = GF_OPTION_TYPE_BOOL },
+ { .key = {"background-unlink"},
+ .type = GF_OPTION_TYPE_BOOL },
+ { .key = {"janitor-sleep-duration"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = 1,
+ .validate = GF_OPT_VALIDATE_MIN,
+ .default_value = "10",
+ .description = "Interval (in seconds) between times the internal "
+ "'landfill' directory is emptied."
+ },
+ { .key = {"volume-id"},
+ .type = GF_OPTION_TYPE_ANY,
+ .default_value = "{{brick.volumeid}}"
+ },
+ { .key = {"glusterd-uuid"},
+ .type = GF_OPTION_TYPE_STR },
+ {
+ .key = {"linux-aio"},
+ .type = GF_OPTION_TYPE_BOOL,
+ .default_value = "off",
+ .description = "Support for native Linux AIO",
+ .op_version = {1},
+ .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+ },
+ {
+ .key = {"brick-uid"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = -1,
+ .validate = GF_OPT_VALIDATE_MIN,
+ .default_value = "-1",
+ .description = "Support for setting uid of brick's owner",
+ .op_version = {1},
+ .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+ },
+ {
+ .key = {"brick-gid"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = -1,
+ .validate = GF_OPT_VALIDATE_MIN,
+ .default_value = "-1",
+ .description = "Support for setting gid of brick's owner",
+ .op_version = {1},
+ .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+ },
+ { .key = {"node-uuid-pathinfo"},
+ .type = GF_OPTION_TYPE_BOOL,
+ .default_value = "off",
+ .description = "return glusterd's node-uuid in pathinfo xattr"
+ " string instead of hostname",
+ .op_version = {3},
+ .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+ },
+ {
+ .key = {"health-check-interval"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = 0,
+ .default_value = "30",
+ .validate = GF_OPT_VALIDATE_MIN,
+ .description = "Interval in seconds for a filesystem health check, "
+ "set to 0 to disable",
+ .op_version = {3},
+ .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+ },
+ {
+ .key = {"health-check-timeout"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = 0,
+ .default_value = "10",
+ .validate = GF_OPT_VALIDATE_MIN,
+ .description = "Interval in seconds to wait aio_write finish for health check, "
+ "set to 0 to disable",
+ .op_version = {GD_OP_VERSION_4_0_0},
+ .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+ },
+ {
+ .key = {"reserve"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = 0,
+ .default_value = "1",
+ .validate = GF_OPT_VALIDATE_MIN,
+ .description = "Percentage of disk space to be reserved."
+ " Set to 0 to disable",
+ .op_version = {GD_OP_VERSION_3_13_0},
+ .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+ },
+ { .key = {"batch-fsync-mode"},
+ .type = GF_OPTION_TYPE_STR,
+ .default_value = "reverse-fsync",
+ .description = "Possible values:\n"
+ "\t- syncfs: Perform one syncfs() on behalf oa batch"
+ "of fsyncs.\n"
+ "\t- syncfs-single-fsync: Perform one syncfs() on behalf of a batch"
+ " of fsyncs and one fsync() per batch.\n"
+ "\t- syncfs-reverse-fsync: Preform one syncfs() on behalf of a batch"
+ " of fsyncs and fsync() each file in the batch in reverse order.\n"
+ " in reverse order.\n"
+ "\t- reverse-fsync: Perform fsync() of each file in the batch in"
+ " reverse order.",
+ .op_version = {3},
+ .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+ },
+ { .key = {"batch-fsync-delay-usec"},
+ .type = GF_OPTION_TYPE_INT,
+ .default_value = "0",
+ .description = "Num of usecs to wait for aggregating fsync"
+ " requests",
+ .op_version = {3},
+ .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+ },
+ { .key = {"update-link-count-parent"},
+ .type = GF_OPTION_TYPE_BOOL,
+ .default_value = "off",
+ .description = "Enable placeholders for gfid to path conversion",
+ .op_version = {GD_OP_VERSION_3_6_0},
+ .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+ },
+ { .key = {"gfid2path"},
+ .type = GF_OPTION_TYPE_BOOL,
+#ifdef __NetBSD__
+ /*
+ * NetBSD storage of extended attributes for UFS1 badly
+ * scales when the list of extended attributes names rises.
+ * This option can add as many extended attributes names
+ * as we have files, hence we keep it disabled for performance
+ * sake.
+ */
+ .default_value = "off",
+#else
+ .default_value = "on",
+#endif
+ .description = "Enable logging metadata for gfid to path conversion",
+ .op_version = {GD_OP_VERSION_3_12_0},
+ .flags = OPT_FLAG_SETTABLE
+ },
+ { .key = {"gfid2path-separator"},
+ .type = GF_OPTION_TYPE_STR,
+ .default_value = ":",
+ .description = "Path separator for glusterfs.gfidtopath virt xattr",
+ .op_version = {GD_OP_VERSION_3_12_0},
+ .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+ },
+#if GF_DARWIN_HOST_OS
+ { .key = {"xattr-user-namespace-mode"},
+ .type = GF_OPTION_TYPE_STR,
+ .default_value = "none",
+ .description = "Option to control XATTR user namespace on the raw filesystem: "
+ "\t- None: Will use the user namespace, so files will be exchangable with Linux.\n"
+ " The raw filesystem will not be compatible with OS X Finder.\n"
+ "\t- Strip: Will strip the user namespace before setting. The raw filesystem will work in OS X.\n",
+ .op_version = {GD_OP_VERSION_3_6_0},
+ .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
+ },
+#endif
+ { .key = {"shared-brick-count"},
+ .type = GF_OPTION_TYPE_INT,
+ .default_value = "1",
+ .description = "Number of bricks sharing the same backend export."
+ " Useful for displaying the proper usable size through statvfs() "
+ "call (df command)",
+ },
+ { .key = {"force-create-mode"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = 0000,
+ .max = 0777,
+ .default_value = "0000",
+ .validate = GF_OPT_VALIDATE_MIN,
+ .validate = GF_OPT_VALIDATE_MAX,
+ .description = "Mode bit permission that will always be set on a file."
+ },
+ { .key = {"force-directory-mode"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = 0000,
+ .max = 0777,
+ .default_value = "0000",
+ .validate = GF_OPT_VALIDATE_MIN,
+ .validate = GF_OPT_VALIDATE_MAX,
+ .description = "Mode bit permission that will be always set on directory"
+ },
+ { .key = {"create-mask"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = 0000,
+ .max = 0777,
+ .default_value = "0777",
+ .validate = GF_OPT_VALIDATE_MIN,
+ .validate = GF_OPT_VALIDATE_MAX,
+ .description = "Any bit not set here will be removed from the"
+ "modes set on a file when it is created"
+ },
+ { .key = {"create-directory-mask"},
+ .type = GF_OPTION_TYPE_INT,
+ .min = 0000,
+ .max = 0777,
+ .default_value = "0777",
+ .validate = GF_OPT_VALIDATE_MIN,
+ .validate = GF_OPT_VALIDATE_MAX,
+ .description = "Any bit not set here will be removed from the"
+ "modes set on a directory when it is created"
+ },
+ { .key = {NULL} }
+};
diff --git a/xlators/storage/posix/src/posix-entry-ops.c b/xlators/storage/posix/src/posix-entry-ops.c
new file mode 100644
index 00000000000..7a83eb3dfba
--- /dev/null
+++ b/xlators/storage/posix/src/posix-entry-ops.c
@@ -0,0 +1,2125 @@
+/*
+ Copyright (c) 2006-2017 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.
+*/
+#define __XOPEN_SOURCE 500
+
+/* for SEEK_HOLE and SEEK_DATA */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <openssl/md5.h>
+#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>
+#include <signal.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include <ftw.h>
+
+#ifndef GF_BSD_HOST_OS
+#include <alloca.h>
+#endif /* GF_BSD_HOST_OS */
+
+#ifdef HAVE_LINKAT
+#include <fcntl.h>
+#endif /* HAVE_LINKAT */
+
+#include "glusterfs.h"
+#include "checksum.h"
+#include "dict.h"
+#include "logging.h"
+#include "posix.h"
+#include "posix-handle.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"
+#include "posix-aio.h"
+#include "glusterfs-acl.h"
+#include "posix-messages.h"
+#include "events.h"
+#include "posix-gfid-path.h"
+#include "compat-uuid.h"
+
+extern char *marker_xattrs[];
+#define ALIGN_SIZE 4096
+
+#undef HAVE_SET_FSID
+#ifdef HAVE_SET_FSID
+
+#define DECLARE_OLD_FS_ID_VAR uid_t old_fsuid; gid_t old_fsgid;
+
+#define SET_FS_ID(uid, gid) do { \
+ old_fsuid = setfsuid (uid); \
+ old_fsgid = setfsgid (gid); \
+ } while (0)
+
+#define SET_TO_OLD_FS_ID() do { \
+ setfsuid (old_fsuid); \
+ setfsgid (old_fsgid); \
+ } while (0)
+
+#else
+
+#define DECLARE_OLD_FS_ID_VAR
+#define SET_FS_ID(uid, gid)
+#define SET_TO_OLD_FS_ID()
+
+#endif
+
+/* Setting microseconds or nanoseconds depending on what's supported:
+ The passed in `tv` can be
+ struct timespec
+ if supported (better, because it supports nanosecond resolution) or
+ struct timeval
+ otherwise. */
+#if HAVE_UTIMENSAT
+#define SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv, nanosecs) \
+ tv.tv_nsec = nanosecs
+#define PATH_SET_TIMESPEC_OR_TIMEVAL(path, tv) \
+ (sys_utimensat (AT_FDCWD, path, tv, AT_SYMLINK_NOFOLLOW))
+#else
+#define SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv, nanosecs) \
+ tv.tv_usec = nanosecs / 1000
+#define PATH_SET_TIMESPEC_OR_TIMEVAL(path, tv) \
+ (lutimes (path, tv))
+#endif
+
+gf_boolean_t
+posix_symlinks_match (xlator_t *this, loc_t *loc, uuid_t gfid)
+{
+ struct posix_private *priv = NULL;
+ char linkname_actual[PATH_MAX] = {0,};
+ char linkname_expected[PATH_MAX] = {0};
+ char *dir_handle = NULL;
+ ssize_t len = 0;
+ size_t handle_size = 0;
+ gf_boolean_t ret = _gf_false;
+
+ priv = this->private;
+ handle_size = POSIX_GFID_HANDLE_SIZE(priv->base_path_length);
+ dir_handle = alloca0 (handle_size);
+
+ snprintf (linkname_expected, handle_size, "../../%02x/%02x/%s/%s",
+ loc->pargfid[0], loc->pargfid[1], uuid_utoa (loc->pargfid),
+ loc->name);
+
+ MAKE_HANDLE_GFID_PATH (dir_handle, this, gfid, NULL);
+ len = sys_readlink (dir_handle, linkname_actual, PATH_MAX);
+ if (len < 0)
+ goto out;
+ linkname_actual[len] = '\0';
+
+ if (!strncmp (linkname_actual, linkname_expected, handle_size))
+ ret = _gf_true;
+
+out:
+ return ret;
+}
+
+dict_t*
+posix_dict_set_nlink (dict_t *req, dict_t *res, int32_t nlink)
+{
+ int ret = -1;
+
+ if (req == NULL || !dict_get (req, GF_REQUEST_LINK_COUNT_XDATA))
+ goto out;
+
+ if (res == NULL)
+ res = dict_new ();
+ if (res == NULL)
+ goto out;
+
+ ret = dict_set_uint32 (res, GF_RESPONSE_LINK_COUNT_XDATA, nlink);
+ if (ret == -1)
+ gf_msg ("posix", GF_LOG_WARNING, 0, P_MSG_SET_XDATA_FAIL,
+ "Failed to set GF_RESPONSE_LINK_COUNT_XDATA");
+out:
+ return res;
+}
+
+/* Regular fops */
+
+int32_t
+posix_lookup (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, dict_t *xdata)
+{
+ struct iatt buf = {0, };
+ int32_t op_ret = -1;
+ int32_t entry_ret = 0;
+ int32_t op_errno = 0;
+ dict_t * xattr = NULL;
+ char * real_path = NULL;
+ char * par_path = NULL;
+ struct iatt postparent = {0,};
+ int32_t gfidless = 0;
+ char *pgfid_xattr_key = NULL;
+ int32_t nlink_samepgfid = 0;
+ struct posix_private *priv = NULL;
+ posix_inode_ctx_t *ctx = NULL;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+
+ priv = this->private;
+
+ /* The Hidden directory should be for housekeeping purpose and it
+ should not get any gfid on it */
+ if (__is_root_gfid (loc->pargfid) && loc->name
+ && (strcmp (loc->name, GF_HIDDEN_PATH) == 0)) {
+ gf_msg (this->name, GF_LOG_WARNING, EPERM,
+ P_MSG_LOOKUP_NOT_PERMITTED, "Lookup issued on %s,"
+ " which is not permitted", GF_HIDDEN_PATH);
+ op_errno = EPERM;
+ op_ret = -1;
+ goto out;
+ }
+
+ op_ret = dict_get_int32 (xdata, GF_GFIDLESS_LOOKUP, &gfidless);
+ op_ret = -1;
+ if (gf_uuid_is_null (loc->pargfid) || (loc->name == NULL)) {
+ /* nameless lookup */
+ MAKE_INODE_HANDLE (real_path, this, loc, &buf);
+ } else {
+ MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &buf);
+
+ if (gf_uuid_is_null (loc->inode->gfid)) {
+ op_ret = posix_gfid_heal (this, real_path, loc, xdata);
+ if (op_ret < 0) {
+ op_errno = -op_ret;
+ op_ret = -1;
+ goto out;
+ }
+ MAKE_ENTRY_HANDLE (real_path, par_path, this,
+ loc, &buf);
+ }
+ }
+
+ op_errno = errno;
+
+ if (op_ret == -1) {
+ if (op_errno != ENOENT) {
+ gf_msg (this->name, GF_LOG_WARNING, op_errno,
+ P_MSG_LSTAT_FAILED,
+ "lstat on %s failed",
+ real_path ? real_path : "null");
+ }
+
+ entry_ret = -1;
+ goto parent;
+ }
+
+ if (xdata && (op_ret == 0)) {
+ xattr = posix_xattr_fill (this, real_path, loc, NULL, -1, xdata,
+ &buf);
+ }
+
+ if (priv->update_pgfid_nlinks) {
+ if (!gf_uuid_is_null (loc->pargfid) && !IA_ISDIR (buf.ia_type)) {
+ MAKE_PGFID_XATTR_KEY (pgfid_xattr_key,
+ PGFID_XATTR_KEY_PREFIX,
+ loc->pargfid);
+
+ op_ret = posix_inode_ctx_get_all (loc->inode, this,
+ &ctx);
+ if (op_ret < 0) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ pthread_mutex_lock (&ctx->pgfid_lock);
+ {
+ SET_PGFID_XATTR_IF_ABSENT (real_path,
+ pgfid_xattr_key,
+ nlink_samepgfid,
+ XATTR_CREATE, op_ret,
+ this, unlock);
+ }
+unlock:
+ pthread_mutex_unlock (&ctx->pgfid_lock);
+ }
+ }
+
+parent:
+ if (par_path) {
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_LSTAT_FAILED, "post-operation lstat on"
+ " parent %s failed", par_path);
+ if (op_errno == ENOENT)
+ /* If parent directory is missing in a lookup,
+ errno should be ESTALE (bad handle) and not
+ ENOENT (missing entry)
+ */
+ op_errno = ESTALE;
+ goto out;
+ }
+ }
+
+ op_ret = entry_ret;
+out:
+ if (!op_ret && !gfidless && gf_uuid_is_null (buf.ia_gfid)) {
+ gf_msg (this->name, GF_LOG_ERROR, ENODATA, P_MSG_NULL_GFID,
+ "buf->ia_gfid is null for "
+ "%s", (real_path) ? real_path: "");
+ op_ret = -1;
+ op_errno = ENODATA;
+ }
+
+ if (op_ret == 0)
+ op_errno = 0;
+ STACK_UNWIND_STRICT (lookup, frame, op_ret, op_errno,
+ (loc)?loc->inode:NULL, &buf, xattr, &postparent);
+
+ if (xattr)
+ dict_unref (xattr);
+
+ return 0;
+}
+
+int
+posix_mknod (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, mode_t mode, dev_t dev, mode_t umask, dict_t *xdata)
+{
+ int tmp_fd = 0;
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char *real_path = 0;
+ char *par_path = 0;
+ struct iatt stbuf = { 0, };
+ struct posix_private *priv = NULL;
+ gid_t gid = 0;
+ struct iatt preparent = {0,};
+ struct iatt postparent = {0,};
+ void * uuid_req = NULL;
+ int32_t nlink_samepgfid = 0;
+ char *pgfid_xattr_key = NULL;
+ gf_boolean_t entry_created = _gf_false, gfid_set = _gf_false;
+ gf_boolean_t linked = _gf_false;
+ gf_loglevel_t level = GF_LOG_NONE;
+ mode_t mode_bit = 0;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+ GFID_NULL_CHECK_AND_GOTO (frame, this, loc, xdata, op_ret, op_errno,
+ out);
+ MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, NULL);
+
+ mode_bit = (priv->create_mask & mode) | priv->force_create_mode;
+ mode = posix_override_umask (mode, mode_bit);
+
+ gid = frame->root->gid;
+
+ SET_FS_ID (frame->root->uid, gid);
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
+ if (!real_path || !par_path) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+
+
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "pre-operation lstat on parent of %s failed",
+ real_path);
+ goto out;
+ }
+
+ if (preparent.ia_prot.sgid) {
+ gid = preparent.ia_gid;
+ }
+
+ /* Check if the 'gfid' already exists, because this mknod may be an
+ internal call from distribute for creating 'linkfile', and that
+ linkfile may be for a hardlinked file */
+ if (dict_get (xdata, GLUSTERFS_INTERNAL_FOP_KEY)) {
+ dict_del (xdata, GLUSTERFS_INTERNAL_FOP_KEY);
+ op_ret = dict_get_ptr (xdata, "gfid-req", &uuid_req);
+ if (op_ret) {
+ gf_msg_debug (this->name, 0, "failed to get the gfid from "
+ "dict for %s", loc->path);
+ goto real_op;
+ }
+ op_ret = posix_create_link_if_gfid_exists (this, uuid_req,
+ real_path,
+ loc->inode->table);
+ if (!op_ret) {
+ linked = _gf_true;
+ goto post_op;
+ }
+ }
+
+real_op:
+#ifdef __NetBSD__
+ if (S_ISFIFO(mode))
+ op_ret = mkfifo (real_path, mode);
+ else
+#endif /* __NetBSD__ */
+ op_ret = sys_mknod (real_path, mode, dev);
+
+ if (op_ret == -1) {
+ op_errno = errno;
+ if ((op_errno == EINVAL) && S_ISREG (mode)) {
+ /* Over Darwin, mknod with (S_IFREG|mode)
+ doesn't work */
+ tmp_fd = sys_creat (real_path, mode);
+ if (tmp_fd == -1) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_CREATE_FAILED, "create failed on"
+ "%s", real_path);
+ goto out;
+ }
+ sys_close (tmp_fd);
+ } else {
+ if (op_errno == EEXIST)
+ level = GF_LOG_DEBUG;
+ else
+ level = GF_LOG_ERROR;
+ gf_msg (this->name, level, errno, P_MSG_MKNOD_FAILED,
+ "mknod on %s failed", real_path);
+ goto out;
+ }
+ }
+
+ entry_created = _gf_true;
+
+#ifndef HAVE_SET_FSID
+ op_ret = sys_lchown (real_path, frame->root->uid, gid);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LCHOWN_FAILED,
+ "lchown on %s failed", real_path);
+ goto out;
+ }
+#endif
+
+post_op:
+ op_ret = posix_acl_xattr_set (this, real_path, xdata);
+ if (op_ret) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_ACL_FAILED,
+ "setting ACLs on %s failed", real_path);
+ }
+
+ if (priv->update_pgfid_nlinks) {
+ MAKE_PGFID_XATTR_KEY (pgfid_xattr_key, PGFID_XATTR_KEY_PREFIX,
+ loc->pargfid);
+ nlink_samepgfid = 1;
+
+ SET_PGFID_XATTR (real_path, pgfid_xattr_key, nlink_samepgfid,
+ XATTR_CREATE, op_ret, this, ignore);
+ }
+
+ if (priv->gfid2path) {
+ posix_set_gfid2path_xattr (this, real_path, loc->pargfid,
+ loc->name);
+ }
+
+ignore:
+ op_ret = posix_entry_create_xattr_set (this, real_path, xdata);
+ if (op_ret) {
+ if (errno != EEXIST)
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_XATTR_FAILED,
+ "setting xattrs on %s failed", real_path);
+ else
+ gf_msg_debug (this->name, 0,
+ "setting xattrs on %s failed", real_path);
+ }
+
+ if (!linked) {
+ op_ret = posix_gfid_set (this, real_path, loc, xdata);
+ if (op_ret) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_GFID_FAILED,
+ "setting gfid on %s failed", real_path);
+ } else {
+ gfid_set = _gf_true;
+ }
+ }
+
+ op_ret = posix_pstat (this, NULL, real_path, &stbuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_MKNOD_FAILED,
+ "mknod on %s failed", real_path);
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "post-operation lstat on parent %s failed",
+ par_path);
+ goto out;
+ }
+
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (mknod, frame, op_ret, op_errno,
+ (loc)?loc->inode:NULL, &stbuf, &preparent,
+ &postparent, NULL);
+
+ if (op_ret < 0) {
+ if (entry_created) {
+ if (S_ISREG (mode))
+ sys_unlink (real_path);
+ else
+ sys_rmdir (real_path);
+ }
+
+ if (gfid_set)
+ posix_gfid_unset (this, xdata);
+ }
+
+ return 0;
+}
+
+int
+posix_mkdir (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, mode_t mode, mode_t umask, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char *real_path = NULL, *gfid_path = NULL;
+ char *par_path = NULL, *xattr_name = NULL;
+ struct iatt stbuf = {0, };
+ struct posix_private *priv = NULL;
+ gid_t gid = 0;
+ struct iatt preparent = {0,};
+ struct iatt postparent = {0,};
+ gf_boolean_t entry_created = _gf_false, gfid_set = _gf_false;
+ void *uuid_req = NULL;
+ ssize_t size = 0;
+ dict_t *xdata_rsp = NULL;
+ void *disk_xattr = NULL;
+ data_t *arg_data = NULL;
+ char pgfid[GF_UUID_BUF_SIZE] = {0};
+ char value_buf[4096] = {0,};
+ gf_boolean_t have_val = _gf_false;
+ mode_t mode_bit = 0;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+
+ /* The Hidden directory should be for housekeeping purpose and it
+ should not get created from a user request */
+ if (__is_root_gfid (loc->pargfid) &&
+ (strcmp (loc->name, GF_HIDDEN_PATH) == 0)) {
+ gf_msg (this->name, GF_LOG_WARNING, EPERM,
+ P_MSG_MKDIR_NOT_PERMITTED, "mkdir issued on %s, which"
+ "is not permitted", GF_HIDDEN_PATH);
+ op_errno = EPERM;
+ op_ret = -1;
+ goto out;
+ }
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+ GFID_NULL_CHECK_AND_GOTO (frame, this, loc, xdata, op_ret, op_errno,
+ out);
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
+
+ MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, NULL);
+ if (!real_path || !par_path) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+
+ if (loc->parent)
+ gf_uuid_unparse (loc->parent->gfid, pgfid);
+ else
+ gf_uuid_unparse (loc->pargfid, pgfid);
+
+ gid = frame->root->gid;
+
+ op_ret = posix_pstat (this, NULL, real_path, &stbuf);
+
+ SET_FS_ID (frame->root->uid, gid);
+
+ mode_bit = (priv->create_directory_mask & mode)
+ | priv->force_directory_mode;
+ mode = posix_override_umask (mode, mode_bit);
+
+ if (xdata) {
+ op_ret = dict_get_ptr (xdata, "gfid-req", &uuid_req);
+ if (!op_ret && !gf_uuid_compare (stbuf.ia_gfid, uuid_req)) {
+ op_ret = -1;
+ op_errno = EEXIST;
+ goto out;
+ }
+ }
+
+ if (uuid_req && !gf_uuid_is_null (uuid_req)) {
+ op_ret = posix_istat (this, uuid_req, NULL, &stbuf);
+ if ((op_ret == 0) && IA_ISDIR (stbuf.ia_type)) {
+ size = posix_handle_path (this, uuid_req, NULL, NULL,
+ 0);
+ if (size > 0)
+ gfid_path = alloca (size);
+
+ if (gfid_path)
+ posix_handle_path (this, uuid_req, NULL,
+ gfid_path, size);
+
+ if (frame->root->pid != GF_CLIENT_PID_SELF_HEALD) {
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_DIR_OF_SAME_ID, "mkdir (%s): "
+ "gfid (%s) is already associated with "
+ "directory (%s). Hence, both "
+ "directories will share same gfid and "
+ "this can lead to inconsistencies.",
+ loc->path, uuid_utoa (uuid_req),
+ gfid_path ? gfid_path : "<NULL>");
+
+ gf_event (EVENT_POSIX_SAME_GFID, "gfid=%s;"
+ "path=%s;newpath=%s;brick=%s:%s",
+ uuid_utoa (uuid_req),
+ gfid_path ? gfid_path : "<NULL>",
+ loc->path, priv->hostname,
+ priv->base_path);
+ }
+ if (!posix_symlinks_match (this, loc, uuid_req))
+ /* For afr selfheal of dir renames, we need to
+ * remove the old symlink in order for
+ * posix_gfid_set to set the symlink to the
+ * new dir.*/
+ posix_handle_unset (this, stbuf.ia_gfid, NULL);
+ }
+ } else if (!uuid_req && frame->root->pid != GF_SERVER_PID_TRASH) {
+ op_ret = -1;
+ op_errno = EPERM;
+ gf_msg_callingfn (this->name, GF_LOG_WARNING, op_errno,
+ P_MSG_NULL_GFID, "mkdir (%s): is issued without "
+ "gfid-req %p", loc->path, xdata);
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "pre-operation lstat on parent %s failed",
+ par_path);
+ goto out;
+ }
+
+ if (preparent.ia_prot.sgid) {
+ gid = preparent.ia_gid;
+ mode |= S_ISGID;
+ }
+
+ op_ret = dict_get_str (xdata, GF_PREOP_PARENT_KEY, &xattr_name);
+ if (xattr_name != NULL) {
+ arg_data = dict_get (xdata, xattr_name);
+ if (arg_data) {
+ size = sys_lgetxattr (par_path, xattr_name, value_buf,
+ sizeof(value_buf) - 1);
+ if (size >= 0) {
+ have_val = _gf_true;
+ } else {
+ if (errno == ERANGE) {
+ gf_msg (this->name, GF_LOG_INFO, errno,
+ P_MSG_PREOP_CHECK_FAILED,
+ "mkdir (%s/%s): getxattr on key "
+ "(%s) path (%s) failed due to "
+ " buffer overflow", pgfid,
+ loc->name, xattr_name,
+ par_path);
+ size = sys_lgetxattr (par_path,
+ xattr_name, NULL,
+ 0);
+ }
+ if (size < 0) {
+ op_ret = -1;
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_PREOP_CHECK_FAILED,
+ "mkdir (%s/%s): getxattr on key (%s)"
+ " path (%s) failed ", pgfid,
+ loc->name, xattr_name,
+ par_path);
+ goto out;
+ }
+ }
+ disk_xattr = alloca (size);
+ if (disk_xattr == NULL) {
+ op_ret = -1;
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_PREOP_CHECK_FAILED,
+ "mkdir (%s/%s): alloca failed during"
+ " preop of mkdir (%s)", pgfid,
+ loc->name, real_path);
+ goto out;
+ }
+ if (have_val) {
+ memcpy (disk_xattr, value_buf, size);
+ } else {
+ size = sys_lgetxattr (par_path, xattr_name,
+ disk_xattr, size);
+ if (size < 0) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_PREOP_CHECK_FAILED,
+ "mkdir (%s/%s): getxattr on "
+ " key (%s) path (%s) failed "
+ "(%s)", pgfid, loc->name,
+ xattr_name, par_path,
+ strerror (errno));
+ goto out;
+ }
+ }
+ if ((arg_data->len != size)
+ || (memcmp (arg_data->data, disk_xattr, size))) {
+ gf_msg (this->name, GF_LOG_INFO, EIO,
+ P_MSG_PREOP_CHECK_FAILED,
+ "mkdir (%s/%s): failing preop of "
+ "mkdir (%s) as on-disk"
+ " xattr value differs from argument "
+ "value for key %s", pgfid, loc->name,
+ real_path, xattr_name);
+ op_ret = -1;
+ op_errno = EIO;
+
+ xdata_rsp = dict_new ();
+ if (xdata_rsp == NULL) {
+ gf_msg (this->name, GF_LOG_ERROR,
+ ENOMEM,
+ P_MSG_PREOP_CHECK_FAILED,
+ "mkdir (%s/%s): "
+ "dict allocation failed", pgfid,
+ loc->name);
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ op_errno = dict_set_int8 (xdata_rsp,
+ GF_PREOP_CHECK_FAILED, 1);
+ goto out;
+ }
+
+ dict_del (xdata, xattr_name);
+ }
+
+ dict_del (xdata, GF_PREOP_PARENT_KEY);
+ }
+
+ op_ret = sys_mkdir (real_path, mode);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_MKDIR_FAILED,
+ "mkdir of %s failed", real_path);
+ goto out;
+ }
+
+ entry_created = _gf_true;
+
+#ifndef HAVE_SET_FSID
+ op_ret = sys_chown (real_path, frame->root->uid, gid);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_CHOWN_FAILED,
+ "chown on %s failed", real_path);
+ goto out;
+ }
+#endif
+ op_ret = posix_acl_xattr_set (this, real_path, xdata);
+ if (op_ret) {
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_ACL_FAILED,
+ "setting ACLs on %s failed ", real_path);
+ }
+
+ op_ret = posix_entry_create_xattr_set (this, real_path, xdata);
+ if (op_ret) {
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_XATTR_FAILED,
+ "setting xattrs on %s failed", real_path);
+ }
+
+ op_ret = posix_gfid_set (this, real_path, loc, xdata);
+ if (op_ret) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_GFID_FAILED,
+ "setting gfid on %s failed", real_path);
+ } else {
+ gfid_set = _gf_true;
+ }
+
+ op_ret = posix_pstat (this, NULL, real_path, &stbuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "lstat on %s failed", real_path);
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "post-operation lstat on parent of %s failed",
+ real_path);
+ goto out;
+ }
+
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (mkdir, frame, op_ret, op_errno,
+ (loc)?loc->inode:NULL, &stbuf, &preparent,
+ &postparent, xdata_rsp);
+
+ if (op_ret < 0) {
+ if (entry_created)
+ sys_rmdir (real_path);
+
+ if (gfid_set)
+ posix_gfid_unset (this, xdata);
+ }
+
+ if (xdata_rsp)
+ dict_unref (xdata_rsp);
+
+ return 0;
+}
+
+int
+posix_add_unlink_to_ctx (inode_t *inode, xlator_t *this, char *unlink_path)
+{
+ uint64_t ctx = GF_UNLINK_FALSE;
+ int ret = 0;
+
+ if (!unlink_path) {
+ gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
+ P_MSG_UNLINK_FAILED,
+ "Creation of unlink entry failed for gfid: %s",
+ unlink_path);
+ ret = -1;
+ goto out;
+ }
+
+ ctx = GF_UNLINK_TRUE;
+ ret = posix_inode_ctx_set_unlink_flag (inode, this, ctx);
+ if (ret < 0) {
+ goto out;
+ }
+
+out:
+ return ret;
+}
+
+int32_t
+posix_move_gfid_to_unlink (xlator_t *this, uuid_t gfid, loc_t *loc)
+{
+ char *unlink_path = NULL;
+ char *gfid_path = NULL;
+ int ret = 0;
+ struct posix_private *priv_posix = NULL;
+
+ priv_posix = (struct posix_private *) this->private;
+
+ MAKE_HANDLE_GFID_PATH (gfid_path, this, gfid, NULL);
+
+ POSIX_GET_FILE_UNLINK_PATH (priv_posix->base_path,
+ loc->inode->gfid, unlink_path);
+ if (!unlink_path) {
+ ret = -1;
+ goto out;
+ }
+ gf_msg_debug (this->name, 0,
+ "Moving gfid: %s to unlink_path : %s",
+ gfid_path, unlink_path);
+ ret = sys_rename (gfid_path, unlink_path);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_UNLINK_FAILED,
+ "Creation of unlink entry failed for gfid: %s",
+ unlink_path);
+ goto out;
+ }
+ ret = posix_add_unlink_to_ctx (loc->inode, this, unlink_path);
+ if (ret < 0)
+ goto out;
+
+out:
+ return ret;
+}
+
+int32_t
+posix_unlink_gfid_handle_and_entry (xlator_t *this, const char *real_path,
+ struct iatt *stbuf, int32_t *op_errno,
+ loc_t *loc, gf_boolean_t get_link_count,
+ dict_t *rsp_dict)
+{
+ int32_t ret = 0;
+ struct iatt prebuf = {0,};
+ gf_boolean_t locked = _gf_false;
+
+ /* Unlink the gfid_handle_first */
+ if (stbuf && stbuf->ia_nlink == 1) {
+
+ LOCK (&loc->inode->lock);
+
+ if (loc->inode->fd_count == 0) {
+ UNLOCK (&loc->inode->lock);
+ ret = posix_handle_unset (this, stbuf->ia_gfid, NULL);
+ } else {
+ UNLOCK (&loc->inode->lock);
+ ret = posix_move_gfid_to_unlink (this, stbuf->ia_gfid,
+ loc);
+ }
+ if (ret) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_UNLINK_FAILED, "unlink of gfid handle "
+ "failed for path:%s with gfid %s",
+ real_path, uuid_utoa (stbuf->ia_gfid));
+ }
+ }
+
+ if (get_link_count) {
+ LOCK (&loc->inode->lock);
+ locked = _gf_true;
+ ret = posix_pstat (this, loc->gfid, real_path, &prebuf);
+ if (ret) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_LSTAT_FAILED, "lstat on %s failed",
+ real_path);
+ goto err;
+ }
+ }
+
+ /* Unlink the actual file */
+ ret = sys_unlink (real_path);
+ if (ret == -1) {
+ if (op_errno)
+ *op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_UNLINK_FAILED,
+ "unlink of %s failed", real_path);
+ goto err;
+ }
+
+ if (locked) {
+ UNLOCK (&loc->inode->lock);
+ locked = _gf_false;
+ }
+
+ ret = dict_set_uint32 (rsp_dict, GET_LINK_COUNT, prebuf.ia_nlink);
+ if (ret)
+ gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_SET_XDATA_FAIL,
+ "failed to set "GET_LINK_COUNT" for %s", real_path);
+
+ return 0;
+
+err:
+ if (locked) {
+ UNLOCK (&loc->inode->lock);
+ locked = _gf_false;
+ }
+ return -1;
+}
+
+gf_boolean_t
+posix_skip_non_linkto_unlink (dict_t *xdata, loc_t *loc, char *key,
+ const char *linkto_xattr, struct iatt *stbuf,
+ const char *real_path)
+{
+ gf_boolean_t skip_unlink = _gf_false;
+ gf_boolean_t is_dht_linkto_file = _gf_false;
+ int unlink_if_linkto = 0;
+ ssize_t xattr_size = -1;
+ int op_ret = -1;
+
+ op_ret = dict_get_int32 (xdata, key,
+ &unlink_if_linkto);
+
+ if (!op_ret && unlink_if_linkto) {
+
+ is_dht_linkto_file = IS_DHT_LINKFILE_MODE (stbuf);
+ if (!is_dht_linkto_file)
+ return _gf_true;
+
+ LOCK (&loc->inode->lock);
+
+ xattr_size = sys_lgetxattr (real_path, linkto_xattr, NULL, 0);
+
+ if (xattr_size <= 0)
+ skip_unlink = _gf_true;
+
+ UNLOCK (&loc->inode->lock);
+
+ gf_msg ("posix", GF_LOG_INFO, 0, P_MSG_XATTR_STATUS,
+ "linkto_xattr status: %"PRIu32" for %s", skip_unlink,
+ real_path);
+ }
+ return skip_unlink;
+
+}
+
+int32_t
+posix_unlink (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int xflag, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char *real_path = NULL;
+ char *par_path = NULL;
+ int32_t fd = -1;
+ struct iatt stbuf = {0,};
+ struct iatt postbuf = {0,};
+ struct posix_private *priv = NULL;
+ struct iatt preparent = {0,};
+ struct iatt postparent = {0,};
+ char *pgfid_xattr_key = NULL;
+ int32_t nlink_samepgfid = 0;
+ int32_t check_open_fd = 0;
+ int32_t skip_unlink = 0;
+ int32_t fdstat_requested = 0;
+ dict_t *unwind_dict = NULL;
+ void *uuid = NULL;
+ char uuid_str[GF_UUID_BUF_SIZE] = {0};
+ char gfid_str[GF_UUID_BUF_SIZE] = {0};
+ gf_boolean_t get_link_count = _gf_false;
+ posix_inode_ctx_t *ctx = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+ MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &stbuf);
+ if (!real_path || !par_path) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "pre-operation lstat on parent %s failed",
+ par_path);
+ goto out;
+ }
+
+ priv = this->private;
+
+ op_ret = dict_get_ptr (xdata, TIER_LINKFILE_GFID, &uuid);
+
+ if (!op_ret && gf_uuid_compare (uuid, stbuf.ia_gfid)) {
+ op_errno = ENOENT;
+ op_ret = -1;
+ gf_uuid_unparse (uuid, uuid_str);
+ gf_uuid_unparse (stbuf.ia_gfid, gfid_str);
+ gf_msg_debug (this->name, op_errno, "Mismatch in gfid for path "
+ "%s. Aborting the unlink. loc->gfid = %s, "
+ "stbuf->ia_gfid = %s", real_path,
+ uuid_str, gfid_str);
+ goto out;
+ }
+
+ op_ret = dict_get_int32 (xdata, DHT_SKIP_OPEN_FD_UNLINK,
+ &check_open_fd);
+
+ if (!op_ret && check_open_fd) {
+
+ LOCK (&loc->inode->lock);
+
+ if (loc->inode->fd_count) {
+ skip_unlink = 1;
+ }
+
+ UNLOCK (&loc->inode->lock);
+
+ gf_msg (this->name, GF_LOG_INFO, 0, P_MSG_KEY_STATUS_INFO,
+ "open-fd-key-status: %"PRIu32" for %s", skip_unlink,
+ real_path);
+
+ if (skip_unlink) {
+ op_ret = -1;
+ op_errno = EBUSY;
+ goto out;
+ }
+ }
+ /*
+ * If either of the function return true, skip_unlink.
+ * If first first function itself return true,
+ * we don't need to call second function, skip unlink.
+ */
+ skip_unlink = posix_skip_non_linkto_unlink (xdata, loc,
+ DHT_SKIP_NON_LINKTO_UNLINK,
+ DHT_LINKTO, &stbuf,
+ real_path);
+ skip_unlink = skip_unlink || posix_skip_non_linkto_unlink (xdata, loc,
+ TIER_SKIP_NON_LINKTO_UNLINK,
+ TIER_LINKTO, &stbuf,
+ real_path);
+ if (skip_unlink) {
+ op_ret = -1;
+ op_errno = EBUSY;
+ goto out;
+ }
+
+ if (IA_ISREG (loc->inode->ia_type) &&
+ xdata && dict_get (xdata, DHT_IATT_IN_XDATA_KEY)) {
+ fdstat_requested = 1;
+ }
+
+ if (fdstat_requested ||
+ (priv->background_unlink && IA_ISREG (loc->inode->ia_type))) {
+ fd = sys_open (real_path, O_RDONLY, 0);
+ if (fd == -1) {
+ op_ret = -1;
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_OPEN_FAILED,
+ "open of %s failed", real_path);
+ goto out;
+ }
+ }
+
+ if (priv->update_pgfid_nlinks && (stbuf.ia_nlink > 1)) {
+ MAKE_PGFID_XATTR_KEY (pgfid_xattr_key, PGFID_XATTR_KEY_PREFIX,
+ loc->pargfid);
+ op_ret = posix_inode_ctx_get_all (loc->inode, this, &ctx);
+ if (op_ret < 0) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+ pthread_mutex_lock (&ctx->pgfid_lock);
+ {
+ UNLINK_MODIFY_PGFID_XATTR (real_path, pgfid_xattr_key,
+ nlink_samepgfid, 0, op_ret,
+ this, unlock);
+ }
+ unlock:
+ pthread_mutex_unlock (&ctx->pgfid_lock);
+
+ if (op_ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_XATTR_FAILED, "modification of "
+ "parent gfid xattr failed (path:%s gfid:%s)",
+ real_path, uuid_utoa (loc->inode->gfid));
+ if (op_errno != ENOATTR)
+ /* Allow unlink if pgfid xattr is not set. */
+ goto out;
+ }
+ }
+
+ if (priv->gfid2path && (stbuf.ia_nlink > 1)) {
+ op_ret = posix_remove_gfid2path_xattr (this, real_path,
+ loc->pargfid,
+ loc->name);
+ if (op_ret < 0) {
+ /* Allow unlink if pgfid xattr is not set. */
+ if (errno != ENOATTR)
+ goto out;
+ }
+ }
+
+ unwind_dict = dict_new ();
+ if (!unwind_dict) {
+ op_errno = -ENOMEM;
+ op_ret = -1;
+ goto out;
+ }
+
+ if (xdata && dict_get (xdata, GET_LINK_COUNT))
+ get_link_count = _gf_true;
+ op_ret = posix_unlink_gfid_handle_and_entry (this, real_path, &stbuf,
+ &op_errno, loc,
+ get_link_count,
+ unwind_dict);
+ if (op_ret == -1) {
+ goto out;
+ }
+
+ if (fdstat_requested) {
+ op_ret = posix_fdstat (this, fd, &postbuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_FSTAT_FAILED, "post operation "
+ "fstat failed on fd=%d", fd);
+ goto out;
+ }
+ op_ret = posix_set_iatt_in_dict (unwind_dict, &postbuf);
+ }
+
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "post-operation lstat on parent %s failed",
+ par_path);
+ goto out;
+ }
+
+ unwind_dict = posix_dict_set_nlink (xdata, unwind_dict, stbuf.ia_nlink);
+ op_ret = 0;
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (unlink, frame, op_ret, op_errno,
+ &preparent, &postparent, unwind_dict);
+
+ if (fd != -1) {
+ sys_close (fd);
+ }
+
+ /* unref unwind_dict*/
+ if (unwind_dict) {
+ dict_unref (unwind_dict);
+ }
+
+ return 0;
+}
+
+
+int
+posix_rmdir (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int flags, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char *real_path = NULL;
+ char *par_path = NULL;
+ char *gfid_str = NULL;
+ struct iatt preparent = {0,};
+ struct iatt postparent = {0,};
+ struct iatt stbuf = {0,};
+ struct posix_private *priv = NULL;
+ char tmp_path[PATH_MAX] = {0,};
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ /* The Hidden directory should be for housekeeping purpose and it
+ should not get deleted from inside process */
+ if (__is_root_gfid (loc->pargfid) &&
+ (strcmp (loc->name, GF_HIDDEN_PATH) == 0)) {
+ gf_msg (this->name, GF_LOG_WARNING, EPERM,
+ P_MSG_RMDIR_NOT_PERMITTED, "rmdir issued on %s, which"
+ "is not permitted", GF_HIDDEN_PATH);
+ op_errno = EPERM;
+ op_ret = -1;
+ goto out;
+ }
+
+ priv = this->private;
+
+ MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &stbuf);
+ if (!real_path || !par_path) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "pre-operation lstat on parent %s failed",
+ par_path);
+ goto out;
+ }
+
+ if (flags) {
+ gfid_str = uuid_utoa (stbuf.ia_gfid);
+
+ op_ret = sys_mkdir (priv->trash_path, 0755);
+ if (errno != EEXIST && op_ret == -1) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_MKDIR_FAILED,
+ "mkdir of %s failed", priv->trash_path);
+ } else {
+ (void) snprintf (tmp_path, sizeof(tmp_path), "%s/%s",
+ priv->trash_path, gfid_str);
+ op_ret = sys_rename (real_path, tmp_path);
+ pthread_cond_signal (&priv->janitor_cond);
+ }
+ } else {
+ op_ret = sys_rmdir (real_path);
+ }
+ op_errno = errno;
+
+ if (op_ret == 0) {
+ if (posix_symlinks_match (this, loc, stbuf.ia_gfid))
+ posix_handle_unset (this, stbuf.ia_gfid, NULL);
+ }
+
+ if (op_errno == EEXIST)
+ /* Solaris sets errno = EEXIST instead of ENOTEMPTY */
+ op_errno = ENOTEMPTY;
+
+ /* No need to log a common error as ENOTEMPTY */
+ if (op_ret == -1 && op_errno != ENOTEMPTY) {
+ gf_msg (this->name, GF_LOG_ERROR, op_errno, P_MSG_RMDIR_FAILED,
+ "rmdir of %s failed", real_path);
+ }
+
+ if (op_ret == -1) {
+ if (op_errno == ENOTEMPTY) {
+ gf_msg_debug (this->name, 0, "%s on %s failed", (flags)
+ ? "rename" : "rmdir", real_path);
+ } else {
+ gf_msg (this->name, GF_LOG_ERROR, op_errno,
+ P_MSG_DIR_OPERATION_FAILED, "%s on %s failed",
+ (flags) ? "rename" : "rmdir", real_path);
+ }
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "post-operation lstat on parent of %s failed",
+ par_path);
+ goto out;
+ }
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (rmdir, frame, op_ret, op_errno,
+ &preparent, &postparent, NULL);
+
+ return 0;
+}
+
+
+int
+posix_symlink (call_frame_t *frame, xlator_t *this,
+ const char *linkname, loc_t *loc, mode_t umask, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char * real_path = 0;
+ char * par_path = 0;
+ struct iatt stbuf = { 0, };
+ struct posix_private *priv = NULL;
+ gid_t gid = 0;
+ struct iatt preparent = {0,};
+ struct iatt postparent = {0,};
+ char *pgfid_xattr_key = NULL;
+ int32_t nlink_samepgfid = 0;
+ gf_boolean_t entry_created = _gf_false, gfid_set = _gf_false;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (linkname, out);
+ VALIDATE_OR_GOTO (loc, out);
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+ GFID_NULL_CHECK_AND_GOTO (frame, this, loc, xdata, op_ret, op_errno,
+ out);
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
+
+ MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &stbuf);
+
+ gid = frame->root->gid;
+ if (!real_path || !par_path) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+
+ SET_FS_ID (frame->root->uid, gid);
+
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "pre-operation lstat on parent %s failed",
+ par_path);
+ goto out;
+ }
+
+ if (preparent.ia_prot.sgid) {
+ gid = preparent.ia_gid;
+ }
+
+ op_ret = sys_symlink (linkname, real_path);
+
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_SYMLINK_FAILED,
+ "symlink of %s --> %s failed",
+ real_path, linkname);
+ goto out;
+ }
+
+ entry_created = _gf_true;
+
+#ifndef HAVE_SET_FSID
+ op_ret = sys_lchown (real_path, frame->root->uid, gid);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LCHOWN_FAILED,
+ "lchown failed on %s", real_path);
+ goto out;
+ }
+#endif
+ op_ret = posix_acl_xattr_set (this, real_path, xdata);
+ if (op_ret) {
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_ACL_FAILED,
+ "setting ACLs on %s failed", real_path);
+ }
+
+ if (priv->update_pgfid_nlinks) {
+ MAKE_PGFID_XATTR_KEY (pgfid_xattr_key, PGFID_XATTR_KEY_PREFIX,
+ loc->pargfid);
+ nlink_samepgfid = 1;
+ SET_PGFID_XATTR (real_path, pgfid_xattr_key, nlink_samepgfid,
+ XATTR_CREATE, op_ret, this, ignore);
+ }
+
+ if (priv->gfid2path) {
+ posix_set_gfid2path_xattr (this, real_path, loc->pargfid,
+ loc->name);
+ }
+
+ignore:
+ op_ret = posix_entry_create_xattr_set (this, real_path, xdata);
+ if (op_ret) {
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_XATTR_FAILED,
+ "setting xattrs on %s failed ", real_path);
+ }
+
+ op_ret = posix_gfid_set (this, real_path, loc, xdata);
+ if (op_ret) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_GFID_FAILED,
+ "setting gfid on %s failed", real_path);
+ } else {
+ gfid_set = _gf_true;
+ }
+
+ op_ret = posix_pstat (this, NULL, real_path, &stbuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "lstat failed on %s", real_path);
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "post-operation lstat on parent %s failed",
+ par_path);
+ goto out;
+ }
+
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (symlink, frame, op_ret, op_errno,
+ (loc)?loc->inode:NULL, &stbuf, &preparent,
+ &postparent, NULL);
+
+ if (op_ret < 0) {
+ if (entry_created)
+ sys_unlink (real_path);
+
+ if (gfid_set)
+ posix_gfid_unset (this, xdata);
+ }
+
+ return 0;
+}
+
+
+int
+posix_rename (call_frame_t *frame, xlator_t *this,
+ loc_t *oldloc, loc_t *newloc, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char *real_oldpath = NULL;
+ char *real_newpath = NULL;
+ char *par_oldpath = NULL;
+ char *par_newpath = NULL;
+ struct iatt stbuf = {0, };
+ struct posix_private *priv = NULL;
+ char was_present = 1;
+ struct iatt preoldparent = {0, };
+ struct iatt postoldparent = {0, };
+ struct iatt prenewparent = {0, };
+ struct iatt postnewparent = {0, };
+ char olddirid[64];
+ char newdirid[64];
+ uuid_t victim = {0};
+ int was_dir = 0;
+ int nlink = 0;
+ char *pgfid_xattr_key = NULL;
+ int32_t nlink_samepgfid = 0;
+ char *gfid_path = NULL;
+ dict_t *unwind_dict = NULL;
+ gf_boolean_t locked = _gf_false;
+ gf_boolean_t get_link_count = _gf_false;
+ posix_inode_ctx_t *ctx_old = NULL;
+ posix_inode_ctx_t *ctx_new = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (oldloc, out);
+ VALIDATE_OR_GOTO (newloc, out);
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+ MAKE_ENTRY_HANDLE (real_oldpath, par_oldpath, this, oldloc, NULL);
+ if (!real_oldpath || !par_oldpath) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+
+ MAKE_ENTRY_HANDLE (real_newpath, par_newpath, this, newloc, &stbuf);
+ if (!real_newpath || !par_newpath) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+
+ unwind_dict = dict_new ();
+ if (!unwind_dict) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, oldloc->pargfid, par_oldpath, &preoldparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "pre-operation lstat on parent %s failed",
+ par_oldpath);
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, newloc->pargfid, par_newpath, &prenewparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "pre-operation lstat on parent of %s failed",
+ par_newpath);
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, NULL, real_newpath, &stbuf);
+ if ((op_ret == -1) && (errno == ENOENT)){
+ was_present = 0;
+ } else {
+ gf_uuid_copy (victim, stbuf.ia_gfid);
+ if (IA_ISDIR (stbuf.ia_type))
+ was_dir = 1;
+ nlink = stbuf.ia_nlink;
+ }
+
+ if (was_present && IA_ISDIR(stbuf.ia_type) && !newloc->inode) {
+ gf_msg (this->name, GF_LOG_WARNING, EEXIST, P_MSG_DIR_FOUND,
+ "found directory at %s while expecting ENOENT",
+ real_newpath);
+ op_ret = -1;
+ op_errno = EEXIST;
+ goto out;
+ }
+
+ if (was_present && IA_ISDIR(stbuf.ia_type) &&
+ gf_uuid_compare (newloc->inode->gfid, stbuf.ia_gfid)) {
+ gf_msg (this->name, GF_LOG_WARNING, EEXIST, P_MSG_DIR_FOUND,
+ "found directory %s at %s while renaming %s",
+ uuid_utoa_r (newloc->inode->gfid, olddirid),
+ real_newpath,
+ uuid_utoa_r (stbuf.ia_gfid, newdirid));
+ op_ret = -1;
+ op_errno = EEXIST;
+ goto out;
+ }
+
+ op_ret = posix_inode_ctx_get_all (oldloc->inode, this, &ctx_old);
+ if (op_ret < 0) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ if (newloc->inode) {
+ op_ret = posix_inode_ctx_get_all (newloc->inode, this, &ctx_new);
+ if (op_ret < 0) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ goto out;
+ }
+ }
+
+ if (IA_ISDIR (oldloc->inode->ia_type))
+ posix_handle_unset (this, oldloc->inode->gfid, NULL);
+
+ pthread_mutex_lock (&ctx_old->pgfid_lock);
+ {
+ if (!IA_ISDIR (oldloc->inode->ia_type)
+ && priv->update_pgfid_nlinks) {
+ MAKE_PGFID_XATTR_KEY (pgfid_xattr_key,
+ PGFID_XATTR_KEY_PREFIX,
+ oldloc->pargfid);
+ UNLINK_MODIFY_PGFID_XATTR (real_oldpath,
+ pgfid_xattr_key,
+ nlink_samepgfid, 0,
+ op_ret,
+ this, unlock);
+ }
+
+ if ((xdata) && (dict_get (xdata, GET_LINK_COUNT))
+ && (real_newpath) && (was_present)) {
+ pthread_mutex_lock (&ctx_new->pgfid_lock);
+ locked = _gf_true;
+ get_link_count = _gf_true;
+ op_ret = posix_pstat (this, newloc->gfid, real_newpath,
+ &stbuf);
+ if ((op_ret == -1) && (errno != ENOENT)) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_LSTAT_FAILED,
+ "lstat on %s failed", real_newpath);
+ goto unlock;
+ }
+ }
+
+ op_ret = sys_rename (real_oldpath, real_newpath);
+ if (op_ret == -1) {
+ op_errno = errno;
+ if (op_errno == ENOTEMPTY) {
+ gf_msg_debug (this->name, 0, "rename of %s to"
+ " %s failed: %s", real_oldpath,
+ real_newpath,
+ strerror (op_errno));
+ } else {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_RENAME_FAILED,
+ "rename of %s to %s failed",
+ real_oldpath, real_newpath);
+ }
+
+ if (priv->update_pgfid_nlinks
+ && !IA_ISDIR (oldloc->inode->ia_type)) {
+ LINK_MODIFY_PGFID_XATTR (real_oldpath,
+ pgfid_xattr_key,
+ nlink_samepgfid, 0,
+ op_ret,
+ this, unlock);
+ }
+
+ goto unlock;
+ }
+
+ if (locked) {
+ pthread_mutex_unlock (&ctx_new->pgfid_lock);
+ locked = _gf_false;
+ }
+
+ if ((get_link_count) &&
+ (dict_set_uint32 (unwind_dict, GET_LINK_COUNT,
+ stbuf.ia_nlink)))
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_SET_XDATA_FAIL, "failed to set "
+ GET_LINK_COUNT" for %s", real_newpath);
+
+ if (!IA_ISDIR (oldloc->inode->ia_type)
+ && priv->update_pgfid_nlinks) {
+ MAKE_PGFID_XATTR_KEY (pgfid_xattr_key,
+ PGFID_XATTR_KEY_PREFIX,
+ newloc->pargfid);
+ LINK_MODIFY_PGFID_XATTR (real_newpath,
+ pgfid_xattr_key,
+ nlink_samepgfid, 0,
+ op_ret,
+ this, unlock);
+ }
+
+ if (!IA_ISDIR (oldloc->inode->ia_type) && priv->gfid2path) {
+ MAKE_HANDLE_ABSPATH (gfid_path, this,
+ oldloc->inode->gfid);
+
+ posix_remove_gfid2path_xattr (this, gfid_path,
+ oldloc->pargfid,
+ oldloc->name);
+ posix_set_gfid2path_xattr (this, gfid_path,
+ newloc->pargfid,
+ newloc->name);
+ }
+ }
+
+unlock:
+ if (locked) {
+ pthread_mutex_unlock (&ctx_new->pgfid_lock);
+ locked = _gf_false;
+ }
+ pthread_mutex_unlock (&ctx_old->pgfid_lock);
+
+ if (op_ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_XATTR_FAILED,
+ "modification of "
+ "parent gfid xattr failed (gfid:%s)",
+ uuid_utoa (oldloc->inode->gfid));
+ goto out;
+ }
+
+ if (was_dir)
+ posix_handle_unset (this, victim, NULL);
+
+ if (was_present && !was_dir && nlink == 1)
+ posix_handle_unset (this, victim, NULL);
+
+ if (IA_ISDIR (oldloc->inode->ia_type)) {
+ posix_handle_soft (this, real_newpath, newloc,
+ oldloc->inode->gfid, NULL);
+ }
+
+ op_ret = posix_pstat (this, NULL, real_newpath, &stbuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "lstat on %s failed", real_newpath);
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, oldloc->pargfid, par_oldpath, &postoldparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "post-operation lstat on parent %s failed",
+ par_oldpath);
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, newloc->pargfid, par_newpath, &postnewparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "post-operation lstat on parent %s failed",
+ par_newpath);
+ goto out;
+ }
+
+ if (was_present)
+ unwind_dict = posix_dict_set_nlink (xdata, unwind_dict, nlink);
+ op_ret = 0;
+out:
+
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (rename, frame, op_ret, op_errno, &stbuf,
+ &preoldparent, &postoldparent,
+ &prenewparent, &postnewparent, unwind_dict);
+
+ if (unwind_dict)
+ dict_unref (unwind_dict);
+
+ return 0;
+}
+
+
+int
+posix_link (call_frame_t *frame, xlator_t *this,
+ loc_t *oldloc, loc_t *newloc, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char *real_oldpath = 0;
+ char *real_newpath = 0;
+ char *par_newpath = 0;
+ struct iatt stbuf = {0, };
+ struct posix_private *priv = NULL;
+ struct iatt preparent = {0,};
+ struct iatt postparent = {0,};
+ int32_t nlink_samepgfid = 0;
+ char *pgfid_xattr_key = NULL;
+ gf_boolean_t entry_created = _gf_false;
+ posix_inode_ctx_t *ctx = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (oldloc, out);
+ VALIDATE_OR_GOTO (newloc, out);
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+ MAKE_INODE_HANDLE (real_oldpath, this, oldloc, &stbuf);
+ if (!real_oldpath) {
+ op_errno = errno;
+ goto out;
+ }
+
+ MAKE_ENTRY_HANDLE (real_newpath, par_newpath, this, newloc, &stbuf);
+ if (!real_newpath || !par_newpath) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, newloc->pargfid, par_newpath, &preparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "lstat failed: %s", par_newpath);
+ goto out;
+ }
+
+
+ op_ret = sys_link (real_oldpath, real_newpath);
+
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LINK_FAILED,
+ "link %s to %s failed",
+ real_oldpath, real_newpath);
+ goto out;
+ }
+
+ entry_created = _gf_true;
+
+ op_ret = posix_pstat (this, NULL, real_newpath, &stbuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "lstat on %s failed", real_newpath);
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, newloc->pargfid, par_newpath, &postparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "lstat failed: %s", par_newpath);
+ goto out;
+ }
+
+ if (priv->update_pgfid_nlinks) {
+ MAKE_PGFID_XATTR_KEY (pgfid_xattr_key, PGFID_XATTR_KEY_PREFIX,
+ newloc->pargfid);
+
+ op_ret = posix_inode_ctx_get_all (newloc->inode, this, &ctx);
+ if (op_ret < 0) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ pthread_mutex_lock (&ctx->pgfid_lock);
+ {
+ LINK_MODIFY_PGFID_XATTR (real_newpath, pgfid_xattr_key,
+ nlink_samepgfid, 0, op_ret,
+ this, unlock);
+ }
+ unlock:
+ pthread_mutex_unlock (&ctx->pgfid_lock);
+
+ if (op_ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_XATTR_FAILED, "modification of "
+ "parent gfid xattr failed (path:%s gfid:%s)",
+ real_newpath, uuid_utoa (newloc->inode->gfid));
+ goto out;
+ }
+ }
+
+ if (priv->gfid2path) {
+ if (stbuf.ia_nlink <= MAX_GFID2PATH_LINK_SUP) {
+ op_ret = posix_set_gfid2path_xattr (this, real_newpath,
+ newloc->pargfid,
+ newloc->name);
+ if (op_ret) {
+ op_errno = errno;
+ goto out;
+ }
+ } else {
+ gf_msg (this->name, GF_LOG_INFO, 0,
+ P_MSG_XATTR_NOTSUP, "Link count exceeded. "
+ "gfid2path xattr not set (path:%s gfid:%s)",
+ real_newpath, uuid_utoa (newloc->inode->gfid));
+ }
+ }
+
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (link, frame, op_ret, op_errno,
+ (oldloc)?oldloc->inode:NULL, &stbuf, &preparent,
+ &postparent, NULL);
+
+ if (op_ret < 0) {
+ if (entry_created)
+ sys_unlink (real_newpath);
+ }
+
+ return 0;
+}
+
+int
+posix_create (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int32_t flags, mode_t mode,
+ mode_t umask, fd_t *fd, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ int32_t _fd = -1;
+ int _flags = 0;
+ char * real_path = NULL;
+ char * par_path = NULL;
+ struct iatt stbuf = {0, };
+ struct posix_fd * pfd = NULL;
+ struct posix_private * priv = NULL;
+ char was_present = 1;
+
+ gid_t gid = 0;
+ struct iatt preparent = {0,};
+ struct iatt postparent = {0,};
+
+ int nlink_samepgfid = 0;
+ char * pgfid_xattr_key = NULL;
+ gf_boolean_t entry_created = _gf_false, gfid_set = _gf_false;
+ mode_t mode_bit = 0;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (this->private, out);
+ VALIDATE_OR_GOTO (loc, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+ GFID_NULL_CHECK_AND_GOTO (frame, this, loc, xdata, op_ret, op_errno,
+ out);
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
+
+ MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &stbuf);
+
+ gid = frame->root->gid;
+
+ SET_FS_ID (frame->root->uid, gid);
+ if (!real_path || !par_path) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "pre-operation lstat on parent %s failed",
+ par_path);
+ goto out;
+ }
+
+ if (preparent.ia_prot.sgid) {
+ gid = preparent.ia_gid;
+ }
+
+ if (!flags) {
+ _flags = O_CREAT | O_RDWR | O_EXCL;
+ }
+ else {
+ _flags = flags | O_CREAT;
+ }
+
+ op_ret = posix_pstat (this, NULL, real_path, &stbuf);
+ if ((op_ret == -1) && (errno == ENOENT)) {
+ was_present = 0;
+ }
+
+ if (priv->o_direct)
+ _flags |= O_DIRECT;
+
+ mode_bit = (priv->create_mask & mode) | priv->force_create_mode;
+ mode = posix_override_umask (mode, mode_bit);
+ _fd = sys_open (real_path, _flags, mode);
+
+ if (_fd == -1) {
+ op_errno = errno;
+ op_ret = -1;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_OPEN_FAILED,
+ "open on %s failed", real_path);
+ goto out;
+ }
+
+ if ((_flags & O_CREAT) && (_flags & O_EXCL)) {
+ entry_created = _gf_true;
+ }
+
+
+ if (was_present)
+ goto fill_stat;
+
+#ifndef HAVE_SET_FSID
+ op_ret = sys_chown (real_path, frame->root->uid, gid);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_CHOWN_FAILED,
+ "chown on %s failed", real_path);
+ }
+#endif
+ op_ret = posix_acl_xattr_set (this, real_path, xdata);
+ if (op_ret) {
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_ACL_FAILED,
+ "setting ACLs on %s failed", real_path);
+ }
+
+ if (priv->update_pgfid_nlinks) {
+ MAKE_PGFID_XATTR_KEY (pgfid_xattr_key, PGFID_XATTR_KEY_PREFIX,
+ loc->pargfid);
+ nlink_samepgfid = 1;
+ SET_PGFID_XATTR (real_path, pgfid_xattr_key, nlink_samepgfid,
+ XATTR_CREATE, op_ret, this, ignore);
+ }
+
+ if (priv->gfid2path) {
+ posix_set_gfid2path_xattr (this, real_path, loc->pargfid,
+ loc->name);
+ }
+ignore:
+ op_ret = posix_entry_create_xattr_set (this, real_path, xdata);
+ if (op_ret) {
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_XATTR_FAILED,
+ "setting xattrs on %s failed ", real_path);
+ }
+
+fill_stat:
+ op_ret = posix_gfid_set (this, real_path, loc, xdata);
+ if (op_ret) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_GFID_FAILED,
+ "setting gfid on %s failed", real_path);
+ } else {
+ gfid_set = _gf_true;
+ }
+
+ op_ret = posix_fdstat (this, _fd, &stbuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
+ "fstat on %d failed", _fd);
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "post-operation lstat on parent %s failed",
+ par_path);
+ goto out;
+ }
+
+ op_ret = -1;
+ pfd = GF_CALLOC (1, sizeof (*pfd), gf_posix_mt_posix_fd);
+ if (!pfd) {
+ op_errno = errno;
+ goto out;
+ }
+
+ pfd->flags = flags;
+ pfd->fd = _fd;
+
+ op_ret = fd_ctx_set (fd, this, (uint64_t)(long)pfd);
+ if (op_ret)
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_FD_PATH_SETTING_FAILED,
+ "failed to set the fd context path=%s fd=%p",
+ real_path, fd);
+
+ LOCK (&priv->lock);
+ {
+ priv->nr_files++;
+ }
+ UNLOCK (&priv->lock);
+
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ if ((-1 == op_ret) && (_fd != -1)) {
+ sys_close (_fd);
+ }
+
+ STACK_UNWIND_STRICT (create, frame, op_ret, op_errno,
+ fd, (loc)?loc->inode:NULL, &stbuf, &preparent,
+ &postparent, xdata);
+
+ if (op_ret < 0) {
+ if (entry_created)
+ sys_unlink (real_path);
+
+ if (gfid_set)
+ posix_gfid_unset (this, xdata);
+ }
+
+ return 0;
+}
diff --git a/xlators/storage/posix/src/posix-handle.c b/xlators/storage/posix/src/posix-handle.c
index 38e3198d812..99501177138 100644
--- a/xlators/storage/posix/src/posix-handle.c
+++ b/xlators/storage/posix/src/posix-handle.c
@@ -26,6 +26,9 @@
#include "compat-errno.h"
+int
+posix_handle_mkdir_hashes (xlator_t *this, const char *newpath);
+
inode_t *
posix_resolve (xlator_t *this, inode_table_t *itable, inode_t *parent,
char *bname, struct iatt *iabuf)
diff --git a/xlators/storage/posix/src/posix-handle.h b/xlators/storage/posix/src/posix-handle.h
index c76e618546f..97186f91e64 100644
--- a/xlators/storage/posix/src/posix-handle.h
+++ b/xlators/storage/posix/src/posix-handle.h
@@ -1,5 +1,5 @@
/*
- Copyright (c) 2011-2012 Red Hat, Inc. <http://www.redhat.com>
+ Copyright (c) 2011-2017 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
@@ -10,29 +10,12 @@
#ifndef _POSIX_HANDLE_H
#define _POSIX_HANDLE_H
-#include <limits.h>
-#include <sys/types.h>
-#include "xlator.h"
-#include "posix-messages.h"
-
-/* From Open Group Base Specifications Issue 6 */
-#ifndef _XOPEN_PATH_MAX
-#define _XOPEN_PATH_MAX 1024
-#endif
-
-#define TRASH_DIR "landfill"
-
-#define UUID0_STR "00000000-0000-0000-0000-000000000000"
-#define SLEN(str) (sizeof(str) - 1)
+#include "posix-inode-handle.h"
#define HANDLE_ABSPATH_LEN(this) (POSIX_BASE_PATH_LEN(this) + \
SLEN("/" GF_HIDDEN_PATH "/00/00/" \
UUID0_STR) + 1)
-#define LOC_HAS_ABSPATH(loc) (loc && (loc->path) && (loc->path[0] == '/'))
-#define LOC_IS_DIR(loc) (loc && (loc->inode) && \
- (loc->inode->ia_type == IA_IFDIR))
-
#define MAKE_PGFID_XATTR_KEY(var, prefix, pgfid) do { \
var = alloca (strlen (prefix) + UUID_CANONICAL_FORM_LEN + 1); \
strcpy (var, prefix); \
@@ -123,32 +106,6 @@
} \
} while (0)
-#define MAKE_REAL_PATH(var, this, path) do { \
- size_t path_len = strlen(path); \
- size_t var_len = path_len + POSIX_BASE_PATH_LEN(this) + 1; \
- if (POSIX_PATH_MAX(this) != -1 && \
- var_len >= POSIX_PATH_MAX(this)) { \
- var = alloca (path_len + 1); \
- strcpy (var, (path[0] == '/') ? path + 1 : path); \
- } else { \
- var = alloca (var_len); \
- strcpy (var, POSIX_BASE_PATH(this)); \
- strcpy (&var[POSIX_BASE_PATH_LEN(this)], path); \
- } \
- } while (0)
-
-#define MAKE_HANDLE_PATH(var, this, gfid, base) do { \
- int __len; \
- __len = posix_handle_path (this, gfid, base, NULL, 0); \
- if (__len <= 0) \
- break; \
- var = alloca (__len); \
- __len = posix_handle_path (this, gfid, base, var, __len); \
- if (__len <= 0) \
- var = NULL; \
- } while (0)
-
-
#define MAKE_HANDLE_GFID_PATH(var, this, gfid, base) do { \
int __len = 0; \
__len = posix_handle_gfid_path (this, gfid, base, NULL, 0); \
@@ -168,7 +125,6 @@
__len = posix_handle_relpath (this, gfid, base, var, __len); \
} while (0)
-
#define MAKE_HANDLE_ABSPATH(var, this, gfid) do { \
struct posix_private * __priv = this->private; \
int __len = HANDLE_ABSPATH_LEN(this); \
@@ -177,36 +133,6 @@
__priv->base_path, gfid[0], gfid[1], uuid_utoa(gfid)); \
} while (0)
-
-#define MAKE_INODE_HANDLE(rpath, this, loc, iatt_p) do { \
- if (gf_uuid_is_null (loc->gfid)) { \
- gf_msg (this->name, GF_LOG_ERROR, 0, \
- P_MSG_INODE_HANDLE_CREATE, \
- "null gfid for path %s", (loc)->path); \
- break; \
- } \
- if (LOC_IS_DIR (loc) && LOC_HAS_ABSPATH (loc)) { \
- MAKE_REAL_PATH (rpath, this, (loc)->path); \
- op_ret = posix_pstat (this, (loc)->gfid, rpath, iatt_p); \
- break; \
- } \
- errno = 0; \
- op_ret = posix_istat (this, loc->gfid, NULL, iatt_p); \
- if (errno != ELOOP) { \
- MAKE_HANDLE_PATH (rpath, this, (loc)->gfid, NULL); \
- if (!rpath) { \
- op_ret = -1; \
- gf_msg (this->name, GF_LOG_ERROR, errno, \
- P_MSG_INODE_HANDLE_CREATE, \
- "Failed to create inode handle " \
- "for path %s", (loc)->path); \
- } \
- break; \
- } \
- /* __ret == -1 && errno == ELOOP */ \
- } while (0)
-
-
#define MAKE_ENTRY_HANDLE(entp, parp, this, loc, ent_p) do { \
char *__parp; \
\
@@ -240,25 +166,6 @@
/* expand ELOOP */ \
} while (0)
-
-#define POSIX_ANCESTRY_PATH (1 << 0)
-#define POSIX_ANCESTRY_DENTRY (1 << 1)
-
-int
-posix_handle_path (xlator_t *this, uuid_t gfid, const char *basename, char *buf,
- size_t len);
-
-int
-posix_make_ancestryfromgfid (xlator_t *this, char *path, int pathsize,
- gf_dirent_t *head, int type, uuid_t gfid,
- const size_t handle_size,
- const char *priv_base_path,
- inode_table_t *table, inode_t **parent,
- dict_t *xdata, int32_t *op_errno);
-int
-posix_handle_path_safe (xlator_t *this, uuid_t gfid, const char *basename,
- char *buf, size_t len);
-
int
posix_handle_gfid_path (xlator_t *this, uuid_t gfid, const char *basename,
char *buf, size_t len);
@@ -275,13 +182,8 @@ posix_handle_soft (xlator_t *this, const char *real_path, loc_t *loc,
int
posix_handle_unset (xlator_t *this, uuid_t gfid, const char *basename);
-int posix_handle_mkdir_hashes (xlator_t *this, const char *newpath);
-
-int posix_handle_init (xlator_t *this);
-
-int posix_create_link_if_gfid_exists (xlator_t *this, uuid_t gfid,
- char *real_path, inode_table_t *itable);
-
int
-posix_handle_trash_init (xlator_t *this);
+posix_create_link_if_gfid_exists (xlator_t *this, uuid_t gfid,
+ char *real_path, inode_table_t *itable);
+
#endif /* !_POSIX_HANDLE_H */
diff --git a/xlators/storage/posix/src/posix-helpers.c b/xlators/storage/posix/src/posix-helpers.c
index 5a3f4b129fb..8f550f9fe0d 100644
--- a/xlators/storage/posix/src/posix-helpers.c
+++ b/xlators/storage/posix/src/posix-helpers.c
@@ -38,6 +38,8 @@
#include "dict.h"
#include "logging.h"
#include "posix.h"
+#include "posix-messages.h"
+#include "posix-handle.h"
#include "xlator.h"
#include "defaults.h"
#include "common-utils.h"
@@ -2643,3 +2645,36 @@ posix_is_bulk_removexattr (char *name, dict_t *xdata)
return _gf_true;
return _gf_false;
}
+
+int32_t
+posix_set_iatt_in_dict (dict_t *dict, struct iatt *in_stbuf)
+{
+ int ret = -1;
+ struct iatt *stbuf = NULL;
+ int32_t len = sizeof(struct iatt);
+
+ if (!dict || !in_stbuf)
+ return ret;
+
+ stbuf = GF_CALLOC (1, len, gf_common_mt_char);
+ if (!stbuf)
+ return ret;
+
+ memcpy (stbuf, in_stbuf, len);
+
+ ret = dict_set_bin (dict, DHT_IATT_IN_XDATA_KEY, stbuf, len);
+ if (ret)
+ GF_FREE (stbuf);
+
+ return ret;
+}
+
+mode_t
+posix_override_umask (mode_t mode, mode_t mode_bit)
+{
+ gf_msg_debug ("posix", 0, "The value of mode is %u", mode);
+ mode = mode >> 9; /* 3x3 (bits for each octal digit)*/
+ mode = (mode << 9) | mode_bit;
+ gf_msg_debug ("posix", 0, "The value of mode is %u", mode);
+ return mode;
+}
diff --git a/xlators/storage/posix/src/posix-inode-fd-ops.c b/xlators/storage/posix/src/posix-inode-fd-ops.c
new file mode 100644
index 00000000000..9d1b19ac9a0
--- /dev/null
+++ b/xlators/storage/posix/src/posix-inode-fd-ops.c
@@ -0,0 +1,4975 @@
+/*
+ Copyright (c) 2006-2017 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.
+*/
+#define __XOPEN_SOURCE 500
+
+/* for SEEK_HOLE and SEEK_DATA */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <openssl/md5.h>
+#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>
+#include <signal.h>
+#include <sys/uio.h>
+#include <unistd.h>
+#include <ftw.h>
+
+#ifndef GF_BSD_HOST_OS
+#include <alloca.h>
+#endif /* GF_BSD_HOST_OS */
+
+#ifdef HAVE_LINKAT
+#include <fcntl.h>
+#endif /* HAVE_LINKAT */
+
+#include "glusterfs.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"
+#include "posix-aio.h"
+#include "glusterfs-acl.h"
+#include "posix-messages.h"
+#include "events.h"
+#include "posix-gfid-path.h"
+#include "compat-uuid.h"
+
+extern char *marker_xattrs[];
+#define ALIGN_SIZE 4096
+
+#undef HAVE_SET_FSID
+#ifdef HAVE_SET_FSID
+
+#define DECLARE_OLD_FS_ID_VAR uid_t old_fsuid; gid_t old_fsgid;
+
+#define SET_FS_ID(uid, gid) do { \
+ old_fsuid = setfsuid (uid); \
+ old_fsgid = setfsgid (gid); \
+ } while (0)
+
+#define SET_TO_OLD_FS_ID() do { \
+ setfsuid (old_fsuid); \
+ setfsgid (old_fsgid); \
+ } while (0)
+
+#else
+
+#define DECLARE_OLD_FS_ID_VAR
+#define SET_FS_ID(uid, gid)
+#define SET_TO_OLD_FS_ID()
+
+#endif
+
+/* Setting microseconds or nanoseconds depending on what's supported:
+ The passed in `tv` can be
+ struct timespec
+ if supported (better, because it supports nanosecond resolution) or
+ struct timeval
+ otherwise. */
+#if HAVE_UTIMENSAT
+#define SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv, nanosecs) \
+ tv.tv_nsec = nanosecs
+#define PATH_SET_TIMESPEC_OR_TIMEVAL(path, tv) \
+ (sys_utimensat (AT_FDCWD, path, tv, AT_SYMLINK_NOFOLLOW))
+#else
+#define SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv, nanosecs) \
+ tv.tv_usec = nanosecs / 1000
+#define PATH_SET_TIMESPEC_OR_TIMEVAL(path, tv) \
+ (lutimes (path, tv))
+#endif
+
+static char *disallow_removexattrs[] = {
+ GF_XATTR_VOL_ID_KEY,
+ GFID_XATTR_KEY,
+ NULL
+};
+
+int32_t
+posix_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
+{
+ struct iatt buf = {0,};
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ struct posix_private *priv = NULL;
+ char *real_path = NULL;
+ dict_t *xattr_rsp = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ MAKE_INODE_HANDLE (real_path, this, loc, &buf);
+
+ if (op_ret == -1) {
+ op_errno = errno;
+ if (op_errno == ENOENT) {
+ gf_msg_debug(this->name, 0, "lstat on %s failed: %s",
+ real_path ? real_path : "<null>",
+ strerror (op_errno));
+ } else {
+ gf_msg (this->name, GF_LOG_ERROR, op_errno,
+ P_MSG_LSTAT_FAILED, "lstat on %s failed",
+ real_path ? real_path : "<null>");
+ }
+ goto out;
+ }
+ if (xdata)
+ xattr_rsp = posix_xattr_fill (this, real_path, loc, NULL, -1,
+ xdata, &buf);
+
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID();
+ STACK_UNWIND_STRICT (stat, frame, op_ret, op_errno, &buf, xattr_rsp);
+ if (xattr_rsp)
+ dict_unref (xattr_rsp);
+
+ return 0;
+}
+
+static int
+posix_do_chmod (xlator_t *this, const char *path, struct iatt *stbuf)
+{
+ int32_t ret = -1;
+ mode_t mode = 0;
+ mode_t mode_bit = 0;
+ struct posix_private *priv = NULL;
+ struct stat stat;
+ int is_symlink = 0;
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+ ret = sys_lstat (path, &stat);
+ if (ret != 0) {
+ gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_LSTAT_FAILED,
+ "lstat failed: %s", path);
+ goto out;
+ }
+
+ if (S_ISLNK (stat.st_mode))
+ is_symlink = 1;
+
+ if (S_ISDIR (stat.st_mode)) {
+ mode = st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type);
+ mode_bit = (mode & priv->create_directory_mask)
+ | priv->force_directory_mode;
+ mode = posix_override_umask(mode, mode_bit);
+ } else {
+ mode = st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type);
+ mode_bit = (mode & priv->create_mask)
+ | priv->force_create_mode;
+ mode = posix_override_umask(mode, mode_bit);
+ }
+ ret = lchmod (path, mode);
+ if ((ret == -1) && (errno == ENOSYS)) {
+ /* in Linux symlinks are always in mode 0777 and no
+ such call as lchmod exists.
+ */
+ gf_msg_debug (this->name, 0, "%s (%s)", path, strerror (errno));
+ if (is_symlink) {
+ ret = 0;
+ goto out;
+ }
+
+ ret = sys_chmod (path, mode);
+ }
+out:
+ return ret;
+}
+
+static int
+posix_do_chown (xlator_t *this,
+ const char *path,
+ struct iatt *stbuf,
+ int32_t valid)
+{
+ int32_t ret = -1;
+ uid_t uid = -1;
+ gid_t gid = -1;
+
+ if (valid & GF_SET_ATTR_UID)
+ uid = stbuf->ia_uid;
+
+ if (valid & GF_SET_ATTR_GID)
+ gid = stbuf->ia_gid;
+
+ ret = sys_lchown (path, uid, gid);
+
+ return ret;
+}
+
+static int
+posix_do_utimes (xlator_t *this,
+ const char *path,
+ struct iatt *stbuf,
+ int valid)
+{
+ int32_t ret = -1;
+#if defined(HAVE_UTIMENSAT)
+ struct timespec tv[2] = { {0,}, {0,} };
+#else
+ struct timeval tv[2] = { {0,}, {0,} };
+#endif
+ struct stat stat;
+ int is_symlink = 0;
+
+ ret = sys_lstat (path, &stat);
+ if (ret != 0) {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_FILE_OP_FAILED, "%s", path);
+ goto out;
+ }
+
+ if (S_ISLNK (stat.st_mode))
+ is_symlink = 1;
+
+ if ((valid & GF_SET_ATTR_ATIME) == GF_SET_ATTR_ATIME) {
+ tv[0].tv_sec = stbuf->ia_atime;
+ SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv[0], stbuf->ia_atime_nsec);
+ } else {
+ /* atime is not given, use current values */
+ tv[0].tv_sec = ST_ATIM_SEC (&stat);
+ SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv[0], ST_ATIM_NSEC (&stat));
+ }
+
+ if ((valid & GF_SET_ATTR_MTIME) == GF_SET_ATTR_MTIME) {
+ tv[1].tv_sec = stbuf->ia_mtime;
+ SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv[1], stbuf->ia_mtime_nsec);
+ } else {
+ /* mtime is not given, use current values */
+ tv[1].tv_sec = ST_MTIM_SEC (&stat);
+ SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv[1], ST_MTIM_NSEC (&stat));
+ }
+
+ ret = PATH_SET_TIMESPEC_OR_TIMEVAL(path, tv);
+ if ((ret == -1) && (errno == ENOSYS)) {
+ gf_msg_debug (this->name, 0, "%s (%s)",
+ path, strerror (errno));
+ if (is_symlink) {
+ ret = 0;
+ goto out;
+ }
+
+ ret = PATH_SET_TIMESPEC_OR_TIMEVAL(path, tv);
+ }
+
+out:
+ return ret;
+}
+
+int
+posix_setattr (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, struct iatt *stbuf, int32_t valid, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char * real_path = 0;
+ struct iatt statpre = {0,};
+ struct iatt statpost = {0,};
+ dict_t *xattr_rsp = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+ MAKE_INODE_HANDLE (real_path, this, loc, &statpre);
+
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "setattr (lstat) on %s failed",
+ real_path ? real_path : "<null>");
+ goto out;
+ }
+
+ if (valid & (GF_SET_ATTR_UID | GF_SET_ATTR_GID)){
+ op_ret = posix_do_chown (this, real_path, stbuf, valid);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_CHOWN_FAILED, "setattr (chown) on %s "
+ "failed", real_path);
+ goto out;
+ }
+ }
+
+ if (valid & GF_SET_ATTR_MODE) {
+ op_ret = posix_do_chmod (this, real_path, stbuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_CHMOD_FAILED, "setattr (chmod) on %s "
+ "failed", real_path);
+ goto out;
+ }
+ }
+
+ if (valid & (GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME)) {
+ op_ret = posix_do_utimes (this, real_path, stbuf, valid);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_UTIMES_FAILED, "setattr (utimes) on %s "
+ "failed", real_path);
+ goto out;
+ }
+ }
+
+ if (!valid) {
+ op_ret = sys_lchown (real_path, -1, -1);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_LCHOWN_FAILED, "lchown (%s, -1, -1) "
+ "failed", real_path);
+
+ goto out;
+ }
+ }
+
+ op_ret = posix_pstat (this, loc->gfid, real_path, &statpost);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "setattr (lstat) on %s failed", real_path);
+ goto out;
+ }
+
+ if (xdata)
+ xattr_rsp = posix_xattr_fill (this, real_path, loc, NULL, -1,
+ xdata, &statpost);
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (setattr, frame, op_ret, op_errno,
+ &statpre, &statpost, xattr_rsp);
+ if (xattr_rsp)
+ dict_unref (xattr_rsp);
+
+ return 0;
+}
+
+int32_t
+posix_do_fchown (xlator_t *this,
+ int fd,
+ struct iatt *stbuf,
+ int32_t valid)
+{
+ int ret = -1;
+ uid_t uid = -1;
+ gid_t gid = -1;
+
+ if (valid & GF_SET_ATTR_UID)
+ uid = stbuf->ia_uid;
+
+ if (valid & GF_SET_ATTR_GID)
+ gid = stbuf->ia_gid;
+
+ ret = sys_fchown (fd, uid, gid);
+
+ return ret;
+}
+
+
+int32_t
+posix_do_fchmod (xlator_t *this,
+ int fd, struct iatt *stbuf)
+{
+ int32_t ret = -1;
+ mode_t mode = 0;
+ mode_t mode_bit = 0;
+ struct posix_private *priv = NULL;
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+ mode = st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type);
+ mode_bit = (mode & priv->create_mask)
+ | priv->force_create_mode;
+ mode = posix_override_umask (mode, mode_bit);
+ ret = sys_fchmod (fd, mode);
+out:
+ return ret;
+}
+
+static int
+posix_do_futimes (xlator_t *this, int fd, struct iatt *stbuf, int valid)
+{
+ int32_t ret = -1;
+ struct timeval tv[2] = { {0,}, {0,} };
+ struct stat stat = {0,};
+
+ ret = sys_fstat (fd, &stat);
+ if (ret != 0) {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_FILE_OP_FAILED, "%d", fd);
+ goto out;
+ }
+
+ if ((valid & GF_SET_ATTR_ATIME) == GF_SET_ATTR_ATIME) {
+ tv[0].tv_sec = stbuf->ia_atime;
+ tv[0].tv_usec = stbuf->ia_atime_nsec / 1000;
+ } else {
+ /* atime is not given, use current values */
+ tv[0].tv_sec = ST_ATIM_SEC (&stat);
+ tv[0].tv_usec = ST_ATIM_NSEC (&stat) / 1000;
+ }
+
+ if ((valid & GF_SET_ATTR_MTIME) == GF_SET_ATTR_MTIME) {
+ tv[1].tv_sec = stbuf->ia_mtime;
+ tv[1].tv_usec = stbuf->ia_mtime_nsec / 1000;
+ } else {
+ /* mtime is not given, use current values */
+ tv[1].tv_sec = ST_MTIM_SEC (&stat);
+ tv[1].tv_usec = ST_MTIM_NSEC (&stat) / 1000;
+ }
+
+ ret = sys_futimes (fd, tv);
+ if (ret == -1)
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FUTIMES_FAILED,
+ "%d", fd);
+
+out:
+ return ret;
+}
+
+int
+posix_fsetattr (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, struct iatt *stbuf, int32_t valid, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ struct iatt statpre = {0,};
+ struct iatt statpost = {0,};
+ struct posix_fd *pfd = NULL;
+ dict_t *xattr_rsp = NULL;
+ int32_t ret = -1;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg_debug (this->name, 0, "pfd is NULL from fd=%p", fd);
+ goto out;
+ }
+
+ op_ret = posix_fdstat (this, pfd->fd, &statpre);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
+ "fsetattr (fstat) failed on fd=%p", fd);
+ goto out;
+ }
+
+ if (valid & (GF_SET_ATTR_UID | GF_SET_ATTR_GID)) {
+ op_ret = posix_do_fchown (this, pfd->fd, stbuf, valid);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_FCHOWN_FAILED, "fsetattr (fchown) failed"
+ " on fd=%p", fd);
+ goto out;
+ }
+
+ }
+
+ if (valid & GF_SET_ATTR_MODE) {
+ op_ret = posix_do_fchmod (this, pfd->fd, stbuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_FCHMOD_FAILED, "fsetattr (fchmod) failed"
+ " on fd=%p", fd);
+ goto out;
+ }
+ }
+
+ if (valid & (GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME)) {
+ op_ret = posix_do_futimes (this, pfd->fd, stbuf, valid);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_FUTIMES_FAILED, "fsetattr (futimes) on "
+ "failed fd=%p", fd);
+ goto out;
+ }
+ }
+
+ if (!valid) {
+ op_ret = sys_fchown (pfd->fd, -1, -1);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_FCHOWN_FAILED,
+ "fchown (%d, -1, -1) failed",
+ pfd->fd);
+
+ goto out;
+ }
+ }
+
+ op_ret = posix_fdstat (this, pfd->fd, &statpost);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
+ "fsetattr (fstat) failed on fd=%p", fd);
+ goto out;
+ }
+
+ if (xdata)
+ xattr_rsp = posix_xattr_fill (this, NULL, NULL, fd, pfd->fd,
+ xdata, &statpost);
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (fsetattr, frame, op_ret, op_errno,
+ &statpre, &statpost, xattr_rsp);
+ if (xattr_rsp)
+ dict_unref (xattr_rsp);
+
+ return 0;
+}
+
+static int32_t
+posix_do_fallocate (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ int32_t flags, off_t offset, size_t len,
+ struct iatt *statpre, struct iatt *statpost, dict_t *xdata)
+{
+ int32_t ret = -1;
+ int32_t op_errno = 0;
+ struct posix_fd *pfd = NULL;
+ gf_boolean_t locked = _gf_false;
+ posix_inode_ctx_t *ctx = NULL;
+ struct posix_private *priv = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ priv = this->private;
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, ret, ret, out);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg_debug (this->name, 0, "pfd is NULL from fd=%p", fd);
+ goto out;
+ }
+
+ ret = posix_inode_ctx_get_all (fd->inode, this, &ctx);
+ if (ret < 0) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ if (xdata && dict_get (xdata, GLUSTERFS_WRITE_UPDATE_ATOMIC)) {
+ locked = _gf_true;
+ pthread_mutex_lock (&ctx->write_atomic_lock);
+ }
+
+ ret = posix_fdstat (this, pfd->fd, statpre);
+ if (ret == -1) {
+ ret = -errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
+ "fallocate (fstat) failed on fd=%p", fd);
+ goto out;
+ }
+
+ ret = sys_fallocate (pfd->fd, flags, offset, len);
+ if (ret == -1) {
+ ret = -errno;
+ gf_msg (this->name, GF_LOG_ERROR, -ret, P_MSG_FALLOCATE_FAILED,
+ "fallocate failed on %s offset: %jd, "
+ "len:%zu, flags: %d", uuid_utoa (fd->inode->gfid),
+ offset, len, flags);
+ goto out;
+ }
+
+ ret = posix_fdstat (this, pfd->fd, statpost);
+ if (ret == -1) {
+ ret = -errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
+ "fallocate (fstat) failed on fd=%p", fd);
+ goto out;
+ }
+
+out:
+ if (locked) {
+ pthread_mutex_unlock (&ctx->write_atomic_lock);
+ locked = _gf_false;
+ }
+ SET_TO_OLD_FS_ID ();
+ if (ret == ENOSPC)
+ ret = -ENOSPC;
+
+ return ret;
+}
+
+char*
+_page_aligned_alloc (size_t size, char **aligned_buf)
+{
+ char *alloc_buf = NULL;
+ char *buf = NULL;
+
+ alloc_buf = GF_CALLOC (1, (size + ALIGN_SIZE), gf_posix_mt_char);
+ if (!alloc_buf)
+ goto out;
+ /* page aligned buffer */
+ buf = GF_ALIGN_BUF (alloc_buf, ALIGN_SIZE);
+ *aligned_buf = buf;
+out:
+ return alloc_buf;
+}
+
+static int32_t
+_posix_do_zerofill(int fd, off_t offset, off_t len, int o_direct)
+{
+ off_t num_vect = 0;
+ off_t num_loop = 1;
+ off_t idx = 0;
+ int32_t op_ret = -1;
+ int32_t vect_size = VECTOR_SIZE;
+ off_t remain = 0;
+ off_t extra = 0;
+ struct iovec *vector = NULL;
+ char *iov_base = NULL;
+ char *alloc_buf = NULL;
+
+ if (len == 0)
+ return 0;
+ if (len < VECTOR_SIZE)
+ vect_size = len;
+
+ num_vect = len / (vect_size);
+ remain = len % vect_size ;
+ if (num_vect > MAX_NO_VECT) {
+ extra = num_vect % MAX_NO_VECT;
+ num_loop = num_vect / MAX_NO_VECT;
+ num_vect = MAX_NO_VECT;
+ }
+
+ vector = GF_CALLOC (num_vect, sizeof(struct iovec),
+ gf_common_mt_iovec);
+ if (!vector)
+ return -1;
+ if (o_direct) {
+ alloc_buf = _page_aligned_alloc(vect_size, &iov_base);
+ if (!alloc_buf) {
+ GF_FREE(vector);
+ return -1;
+ }
+ } else {
+ iov_base = GF_CALLOC (vect_size, sizeof(char),
+ gf_common_mt_char);
+ if (!iov_base) {
+ GF_FREE(vector);
+ return -1;
+ }
+ }
+
+ for (idx = 0; idx < num_vect; idx++) {
+ vector[idx].iov_base = iov_base;
+ vector[idx].iov_len = vect_size;
+ }
+ if (sys_lseek (fd, offset, SEEK_SET) < 0) {
+ op_ret = -1;
+ goto err;
+ }
+
+ for (idx = 0; idx < num_loop; idx++) {
+ op_ret = sys_writev (fd, vector, num_vect);
+ if (op_ret < 0)
+ goto err;
+ }
+ if (extra) {
+ op_ret = sys_writev (fd, vector, extra);
+ if (op_ret < 0)
+ goto err;
+ }
+ if (remain) {
+ vector[0].iov_len = remain;
+ op_ret = sys_writev (fd, vector , 1);
+ if (op_ret < 0)
+ goto err;
+ }
+err:
+ if (o_direct)
+ GF_FREE(alloc_buf);
+ else
+ GF_FREE(iov_base);
+ GF_FREE(vector);
+ return op_ret;
+}
+
+static int32_t
+posix_do_zerofill (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ off_t len, struct iatt *statpre, struct iatt *statpost,
+ dict_t *xdata)
+{
+ int32_t ret = -1;
+ int32_t op_errno = 0;
+ int32_t flags = 0;
+ struct posix_fd *pfd = NULL;
+ gf_boolean_t locked = _gf_false;
+ posix_inode_ctx_t *ctx = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg_debug (this->name, 0, "pfd is NULL from fd=%p", fd);
+ goto out;
+ }
+
+ ret = posix_inode_ctx_get_all (fd->inode, this, &ctx);
+ if (ret < 0) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ if (dict_get (xdata, GLUSTERFS_WRITE_UPDATE_ATOMIC)) {
+ locked = _gf_true;
+ pthread_mutex_lock (&ctx->write_atomic_lock);
+ }
+
+ ret = posix_fdstat (this, pfd->fd, statpre);
+ if (ret == -1) {
+ ret = -errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
+ "pre-operation fstat failed on fd = %p", fd);
+ goto out;
+ }
+
+ /* See if we can use FALLOC_FL_ZERO_RANGE to perform the zero fill.
+ * If it fails, fall back to _posix_do_zerofill() and an optional fsync.
+ */
+ flags = FALLOC_FL_ZERO_RANGE;
+ ret = sys_fallocate (pfd->fd, flags, offset, len);
+ if (ret == 0)
+ goto fsync;
+
+ ret = _posix_do_zerofill (pfd->fd, offset, len, pfd->flags & O_DIRECT);
+ if (ret < 0) {
+ ret = -errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_ZEROFILL_FAILED,
+ "zerofill failed on fd %d length %" PRId64 ,
+ pfd->fd, len);
+ goto out;
+ }
+
+fsync:
+ if (pfd->flags & (O_SYNC|O_DSYNC)) {
+ ret = sys_fsync (pfd->fd);
+ if (ret) {
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_WRITEV_FAILED, "fsync() in writev on fd"
+ "%d failed", pfd->fd);
+ ret = -errno;
+ goto out;
+ }
+ }
+
+ ret = posix_fdstat (this, pfd->fd, statpost);
+ if (ret == -1) {
+ ret = -errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
+ "post operation fstat failed on fd=%p", fd);
+ goto out;
+ }
+
+out:
+ if (locked) {
+ pthread_mutex_unlock (&ctx->write_atomic_lock);
+ locked = _gf_false;
+ }
+ SET_TO_OLD_FS_ID ();
+
+ return ret;
+}
+
+int32_t
+posix_glfallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t keep_size,
+ off_t offset, size_t len, dict_t *xdata)
+{
+ int32_t ret;
+ int32_t flags = 0;
+ struct iatt statpre = {0,};
+ struct iatt statpost = {0,};
+
+#ifdef FALLOC_FL_KEEP_SIZE
+ if (keep_size)
+ flags = FALLOC_FL_KEEP_SIZE;
+#endif /* FALLOC_FL_KEEP_SIZE */
+
+ ret = posix_do_fallocate (frame, this, fd, flags, offset, len,
+ &statpre, &statpost, xdata);
+ if (ret < 0)
+ goto err;
+
+ STACK_UNWIND_STRICT(fallocate, frame, 0, 0, &statpre, &statpost, NULL);
+ return 0;
+
+err:
+ STACK_UNWIND_STRICT(fallocate, frame, -1, -ret, NULL, NULL, NULL);
+ return 0;
+}
+
+int32_t
+posix_discard(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ size_t len, dict_t *xdata)
+{
+ int32_t ret;
+#ifndef FALLOC_FL_KEEP_SIZE
+ ret = EOPNOTSUPP;
+
+#else /* FALLOC_FL_KEEP_SIZE */
+ int32_t flags = FALLOC_FL_KEEP_SIZE|FALLOC_FL_PUNCH_HOLE;
+ struct iatt statpre = {0,};
+ struct iatt statpost = {0,};
+
+ ret = posix_do_fallocate (frame, this, fd, flags, offset, len,
+ &statpre, &statpost, xdata);
+ if (ret < 0)
+ goto err;
+
+ STACK_UNWIND_STRICT(discard, frame, 0, 0, &statpre, &statpost, NULL);
+ return 0;
+
+err:
+#endif /* FALLOC_FL_KEEP_SIZE */
+ STACK_UNWIND_STRICT(discard, frame, -1, -ret, NULL, NULL, NULL);
+ return 0;
+}
+
+int32_t
+posix_zerofill(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ off_t len, dict_t *xdata)
+{
+ int32_t ret = 0;
+ struct iatt statpre = {0,};
+ struct iatt statpost = {0,};
+ struct posix_private *priv = NULL;
+ int op_ret = -1;
+ int op_errno = -EINVAL;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+
+ priv = this->private;
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
+
+ ret = posix_do_zerofill (frame, this, fd, offset, len,
+ &statpre, &statpost, xdata);
+ if (ret < 0) {
+ op_ret = -1;
+ op_errno = -ret;
+ goto out;
+ }
+
+ STACK_UNWIND_STRICT(zerofill, frame, 0, 0, &statpre, &statpost, NULL);
+ return 0;
+
+out:
+ STACK_UNWIND_STRICT(zerofill, frame, op_ret, op_errno, NULL, NULL, NULL);
+ return 0;
+}
+
+int32_t
+posix_ipc (call_frame_t *frame, xlator_t *this, int32_t op, dict_t *xdata)
+{
+ /*
+ * IPC is for inter-translator communication. If one gets here, it
+ * means somebody sent one that nobody else recognized, which is an
+ * error much like an uncaught exception.
+ */
+ gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_IPC_NOT_HANDLE,
+ "GF_LOG_IPC(%d) not handled", op);
+ STACK_UNWIND_STRICT (ipc, frame, -1, -EOPNOTSUPP, NULL);
+ return 0;
+
+}
+
+#ifdef HAVE_SEEK_HOLE
+int32_t
+posix_seek (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ gf_seek_what_t what, dict_t *xdata)
+{
+ struct posix_fd *pfd = NULL;
+ off_t ret = -1;
+ int err = 0;
+ int whence = 0;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ switch (what) {
+ case GF_SEEK_DATA:
+ whence = SEEK_DATA;
+ break;
+ case GF_SEEK_HOLE:
+ whence = SEEK_HOLE;
+ break;
+ default:
+ err = ENOTSUP;
+ gf_msg (this->name, GF_LOG_ERROR, ENOTSUP,
+ P_MSG_SEEK_UNKOWN, "don't know what to seek");
+ goto out;
+ }
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &err);
+ if (ret < 0) {
+ gf_msg_debug (this->name, 0, "pfd is NULL from fd=%p", fd);
+ goto out;
+ }
+
+ ret = sys_lseek (pfd->fd, offset, whence);
+ if (ret == -1) {
+ err = errno;
+ gf_msg (this->name, GF_LOG_ERROR, err, P_MSG_SEEK_FAILED,
+ "seek failed on fd %d length %" PRId64 , pfd->fd,
+ offset);
+ goto out;
+ }
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (seek, frame, (ret == -1 ? -1 : 0), err,
+ (ret == -1 ? -1 : ret), xdata);
+ return 0;
+}
+#endif
+
+int32_t
+posix_opendir (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, fd_t *fd, dict_t *xdata)
+{
+ char * real_path = NULL;
+ int32_t op_ret = -1;
+ int32_t op_errno = EINVAL;
+ DIR * dir = NULL;
+ struct posix_fd * pfd = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+ MAKE_INODE_HANDLE (real_path, this, loc, NULL);
+ if (!real_path) {
+ op_errno = ESTALE;
+ goto out;
+ }
+
+ op_ret = -1;
+ dir = sys_opendir (real_path);
+
+ if (dir == NULL) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_OPENDIR_FAILED,
+ "opendir failed on %s", real_path);
+ goto out;
+ }
+
+ op_ret = dirfd (dir);
+ if (op_ret < 0) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_DIRFD_FAILED,
+ "dirfd() failed on %s", real_path);
+ goto out;
+ }
+
+ pfd = GF_CALLOC (1, sizeof (*pfd), gf_posix_mt_posix_fd);
+ if (!pfd) {
+ op_errno = errno;
+ goto out;
+ }
+
+ pfd->dir = dir;
+ pfd->dir_eof = -1;
+ pfd->fd = op_ret;
+
+ op_ret = fd_ctx_set (fd, this, (uint64_t)(long)pfd);
+ if (op_ret)
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_FD_PATH_SETTING_FAILED, "failed to set the fd"
+ "context path=%s fd=%p", real_path, fd);
+
+ op_ret = 0;
+
+out:
+ if (op_ret == -1) {
+ if (dir) {
+ (void) sys_closedir (dir);
+ dir = NULL;
+ }
+ if (pfd) {
+ GF_FREE (pfd);
+ pfd = NULL;
+ }
+ }
+
+ SET_TO_OLD_FS_ID ();
+ STACK_UNWIND_STRICT (opendir, frame, op_ret, op_errno, fd, NULL);
+ return 0;
+}
+
+int32_t
+posix_releasedir (xlator_t *this,
+ fd_t *fd)
+{
+ struct posix_fd * pfd = NULL;
+ uint64_t tmp_pfd = 0;
+ int ret = 0;
+
+ struct posix_private *priv = NULL;
+
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ ret = fd_ctx_del (fd, this, &tmp_pfd);
+ if (ret < 0) {
+ gf_msg_debug (this->name, 0, "pfd from fd=%p is NULL", fd);
+ goto out;
+ }
+
+ pfd = (struct posix_fd *)(long)tmp_pfd;
+ if (!pfd->dir) {
+ gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_PFD_NULL,
+ "pfd->dir is NULL for fd=%p", fd);
+ goto out;
+ }
+
+ priv = this->private;
+
+ pthread_mutex_lock (&priv->janitor_lock);
+ {
+ INIT_LIST_HEAD (&pfd->list);
+ list_add_tail (&pfd->list, &priv->janitor_fds);
+ pthread_cond_signal (&priv->janitor_cond);
+ }
+ pthread_mutex_unlock (&priv->janitor_lock);
+
+out:
+ return 0;
+}
+
+
+int32_t
+posix_readlink (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, size_t size, dict_t *xdata)
+{
+ char * dest = NULL;
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char * real_path = NULL;
+ struct iatt stbuf = {0,};
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ dest = alloca (size + 1);
+
+ MAKE_INODE_HANDLE (real_path, this, loc, &stbuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "lstat on %s failed",
+ loc->path ? loc->path : "<null>");
+ goto out;
+ }
+
+ op_ret = sys_readlink (real_path, dest, size);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_READYLINK_FAILED,
+ "readlink on %s failed", real_path);
+ goto out;
+ }
+
+ dest[op_ret] = 0;
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (readlink, frame, op_ret, op_errno, dest, &stbuf, NULL);
+
+ return 0;
+}
+
+int32_t
+posix_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset,
+ dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char *real_path = 0;
+ struct posix_private *priv = NULL;
+ struct iatt prebuf = {0,};
+ struct iatt postbuf = {0,};
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ MAKE_INODE_HANDLE (real_path, this, loc, &prebuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "pre-operation lstat on %s failed",
+ real_path ? real_path : "<null>");
+ goto out;
+ }
+
+ op_ret = sys_truncate (real_path, offset);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_TRUNCATE_FAILED,
+ "truncate on %s failed", real_path);
+ goto out;
+ }
+
+ op_ret = posix_pstat (this, loc->gfid, real_path, &postbuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "lstat on %s failed", real_path);
+ goto out;
+ }
+
+ op_ret = 0;
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (truncate, frame, op_ret, op_errno,
+ &prebuf, &postbuf, NULL);
+
+ return 0;
+}
+
+int32_t
+posix_open (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int32_t flags, fd_t *fd, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char *real_path = NULL;
+ int32_t _fd = -1;
+ struct posix_fd *pfd = NULL;
+ struct posix_private *priv = NULL;
+ struct iatt stbuf = {0, };
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (this->private, out);
+ VALIDATE_OR_GOTO (loc, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+
+ if (flags & O_CREAT)
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
+
+ MAKE_INODE_HANDLE (real_path, this, loc, &stbuf);
+ if (!real_path) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+
+ if (IA_ISLNK (stbuf.ia_type)) {
+ op_ret = -1;
+ op_errno = ELOOP;
+ goto out;
+ }
+
+ op_ret = -1;
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ if (priv->o_direct)
+ flags |= O_DIRECT;
+
+ _fd = sys_open (real_path, flags, priv->force_create_mode);
+ if (_fd == -1) {
+ op_ret = -1;
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FILE_OP_FAILED,
+ "open on %s, flags: %d", real_path, flags);
+ goto out;
+ }
+
+ pfd = GF_CALLOC (1, sizeof (*pfd), gf_posix_mt_posix_fd);
+ if (!pfd) {
+ op_errno = errno;
+ goto out;
+ }
+
+ pfd->flags = flags;
+ pfd->fd = _fd;
+
+ op_ret = fd_ctx_set (fd, this, (uint64_t)(long)pfd);
+ if (op_ret)
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_FD_PATH_SETTING_FAILED,
+ "failed to set the fd context path=%s fd=%p",
+ real_path, fd);
+
+ LOCK (&priv->lock);
+ {
+ priv->nr_files++;
+ }
+ UNLOCK (&priv->lock);
+
+ op_ret = 0;
+
+out:
+ if (op_ret == -1) {
+ if (_fd != -1) {
+ sys_close (_fd);
+ }
+ }
+
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (open, frame, op_ret, op_errno, fd, NULL);
+
+ return 0;
+}
+
+int
+posix_readv (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, size_t size, off_t offset, uint32_t flags, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ int _fd = -1;
+ struct posix_private * priv = NULL;
+ struct iobuf * iobuf = NULL;
+ struct iobref * iobref = NULL;
+ struct iovec vec = {0,};
+ struct posix_fd * pfd = NULL;
+ struct iatt stbuf = {0,};
+ int ret = -1;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+ VALIDATE_OR_GOTO (this->private, out);
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
+ "pfd is NULL from fd=%p", fd);
+ goto out;
+ }
+
+ if (!size) {
+ op_errno = EINVAL;
+ gf_msg (this->name, GF_LOG_WARNING, EINVAL,
+ P_MSG_INVALID_ARGUMENT, "size=%"GF_PRI_SIZET, size);
+ goto out;
+ }
+
+ iobuf = iobuf_get_page_aligned (this->ctx->iobuf_pool, size,
+ ALIGN_SIZE);
+ if (!iobuf) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ _fd = pfd->fd;
+ op_ret = sys_pread (_fd, iobuf->ptr, size, offset);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_READ_FAILED, "read failed on gfid=%s, "
+ "fd=%p, offset=%"PRIu64" size=%"GF_PRI_SIZET", "
+ "buf=%p", uuid_utoa (fd->inode->gfid), fd,
+ offset, size, iobuf->ptr);
+ goto out;
+ }
+
+ LOCK (&priv->lock);
+ {
+ priv->read_value += op_ret;
+ }
+ UNLOCK (&priv->lock);
+
+ vec.iov_base = iobuf->ptr;
+ vec.iov_len = op_ret;
+
+ iobref = iobref_new ();
+
+ iobref_add (iobref, iobuf);
+
+ /*
+ * readv successful, and we need to get the stat of the file
+ * we read from
+ */
+
+ op_ret = posix_fdstat (this, _fd, &stbuf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
+ "fstat failed on fd=%p", fd);
+ goto out;
+ }
+
+ /* Hack to notify higher layers of EOF. */
+ if (!stbuf.ia_size || (offset + vec.iov_len) >= stbuf.ia_size)
+ op_errno = ENOENT;
+
+ op_ret = vec.iov_len;
+out:
+
+ STACK_UNWIND_STRICT (readv, frame, op_ret, op_errno,
+ &vec, 1, &stbuf, iobref, NULL);
+
+ if (iobref)
+ iobref_unref (iobref);
+ if (iobuf)
+ iobuf_unref (iobuf);
+
+ return 0;
+}
+
+
+int32_t
+__posix_pwritev (int fd, struct iovec *vector, int count, off_t offset)
+{
+ int32_t op_ret = 0;
+ int idx = 0;
+ int retval = 0;
+ off_t internal_off = 0;
+
+ if (!vector)
+ return -EFAULT;
+
+ internal_off = offset;
+ for (idx = 0; idx < count; idx++) {
+ retval = sys_pwrite (fd, vector[idx].iov_base, vector[idx].iov_len,
+ internal_off);
+ if (retval == -1) {
+ op_ret = -errno;
+ goto err;
+ }
+ op_ret += retval;
+ internal_off += retval;
+ }
+
+err:
+ return op_ret;
+}
+
+int32_t
+__posix_writev (int fd, struct iovec *vector, int count, off_t startoff,
+ int odirect)
+{
+ int32_t op_ret = 0;
+ int idx = 0;
+ int max_buf_size = 0;
+ int retval = 0;
+ char *buf = NULL;
+ char *alloc_buf = NULL;
+ off_t internal_off = 0;
+
+ /* Check for the O_DIRECT flag during open() */
+ if (!odirect)
+ return __posix_pwritev (fd, vector, count, startoff);
+
+ for (idx = 0; idx < count; idx++) {
+ if (max_buf_size < vector[idx].iov_len)
+ max_buf_size = vector[idx].iov_len;
+ }
+
+ alloc_buf = _page_aligned_alloc (max_buf_size, &buf);
+ if (!alloc_buf) {
+ op_ret = -errno;
+ goto err;
+ }
+
+ internal_off = startoff;
+ for (idx = 0; idx < count; idx++) {
+ memcpy (buf, vector[idx].iov_base, vector[idx].iov_len);
+
+ /* not sure whether writev works on O_DIRECT'd fd */
+ retval = sys_pwrite (fd, buf, vector[idx].iov_len, internal_off);
+ if (retval == -1) {
+ op_ret = -errno;
+ goto err;
+ }
+
+ op_ret += retval;
+ internal_off += retval;
+ }
+
+err:
+ GF_FREE (alloc_buf);
+
+ return op_ret;
+}
+
+dict_t*
+_fill_writev_xdata (fd_t *fd, dict_t *xdata, xlator_t *this, int is_append)
+{
+ dict_t *rsp_xdata = NULL;
+ int32_t ret = 0;
+ inode_t *inode = NULL;
+
+ if (fd)
+ inode = fd->inode;
+
+ if (!fd || !fd->inode || gf_uuid_is_null (fd->inode->gfid)) {
+ gf_msg_callingfn (this->name, GF_LOG_ERROR, EINVAL,
+ P_MSG_XATTR_FAILED, "fd: %p inode: %p"
+ "gfid:%s", fd, inode?inode:0,
+ inode?uuid_utoa(inode->gfid):"N/A");
+ goto out;
+ }
+
+ if (!xdata)
+ goto out;
+
+ rsp_xdata = dict_new();
+ if (!rsp_xdata)
+ goto out;
+
+ if (dict_get (xdata, GLUSTERFS_OPEN_FD_COUNT)) {
+ ret = dict_set_uint32 (rsp_xdata, GLUSTERFS_OPEN_FD_COUNT,
+ fd->inode->fd_count);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_DICT_SET_FAILED, "%s: Failed to set "
+ "dictionary value for %s",
+ uuid_utoa (fd->inode->gfid),
+ GLUSTERFS_OPEN_FD_COUNT);
+ }
+ }
+
+ if (dict_get (xdata, GLUSTERFS_WRITE_IS_APPEND)) {
+ ret = dict_set_uint32 (rsp_xdata, GLUSTERFS_WRITE_IS_APPEND,
+ is_append);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_DICT_SET_FAILED, "%s: Failed to set "
+ "dictionary value for %s",
+ uuid_utoa (fd->inode->gfid),
+ GLUSTERFS_WRITE_IS_APPEND);
+ }
+ }
+out:
+ return rsp_xdata;
+}
+
+int32_t
+posix_writev (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ struct iovec *vector, int32_t count, off_t offset,
+ uint32_t flags, struct iobref *iobref, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ int _fd = -1;
+ struct posix_private * priv = NULL;
+ struct posix_fd * pfd = NULL;
+ struct iatt preop = {0,};
+ struct iatt postop = {0,};
+ int ret = -1;
+ dict_t *rsp_xdata = NULL;
+ int is_append = 0;
+ gf_boolean_t locked = _gf_false;
+ gf_boolean_t write_append = _gf_false;
+ gf_boolean_t update_atomic = _gf_false;
+ posix_inode_ctx_t *ctx = NULL;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+ VALIDATE_OR_GOTO (vector, out);
+ VALIDATE_OR_GOTO (this->private, out);
+
+ priv = this->private;
+
+ VALIDATE_OR_GOTO (priv, out);
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, ret, P_MSG_PFD_NULL,
+ "pfd is NULL from fd=%p", fd);
+ goto out;
+ }
+
+ _fd = pfd->fd;
+
+ if (xdata) {
+ if (dict_get (xdata, GLUSTERFS_WRITE_IS_APPEND))
+ write_append = _gf_true;
+ if (dict_get (xdata, GLUSTERFS_WRITE_UPDATE_ATOMIC))
+ update_atomic = _gf_true;
+ }
+
+ /* The write_is_append check and write must happen
+ atomically. Else another write can overtake this
+ write after the check and get written earlier.
+
+ So lock before preop-stat and unlock after write.
+ */
+
+ /*
+ * The update_atomic option is to instruct posix to do prestat,
+ * write and poststat atomically. This is to prevent any modification to
+ * ia_size and ia_blocks until poststat and the diff in their values
+ * between pre and poststat could be of use for some translators (shard
+ * as of today).
+ */
+
+ op_ret = posix_inode_ctx_get_all (fd->inode, this, &ctx);
+ if (op_ret < 0) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ if (write_append || update_atomic) {
+ locked = _gf_true;
+ pthread_mutex_lock (&ctx->write_atomic_lock);
+ }
+
+ op_ret = posix_fdstat (this, _fd, &preop);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
+ "pre-operation fstat failed on fd=%p", fd);
+ goto out;
+ }
+
+ if (locked && write_append) {
+ if (preop.ia_size == offset || (fd->flags & O_APPEND))
+ is_append = 1;
+ }
+
+ op_ret = __posix_writev (_fd, vector, count, offset,
+ (pfd->flags & O_DIRECT));
+
+ if (locked && (!update_atomic)) {
+ pthread_mutex_unlock (&ctx->write_atomic_lock);
+ locked = _gf_false;
+ }
+
+ if (op_ret < 0) {
+ op_errno = -op_ret;
+ op_ret = -1;
+ gf_msg (this->name, GF_LOG_ERROR, op_errno, P_MSG_WRITE_FAILED,
+ "write failed: offset %"PRIu64
+ ",", offset);
+ goto out;
+ }
+
+ rsp_xdata = _fill_writev_xdata (fd, xdata, this, is_append);
+ /* writev successful, we also need to get the stat of
+ * the file we wrote to
+ */
+
+ ret = posix_fdstat (this, _fd, &postop);
+ if (ret == -1) {
+ op_ret = -1;
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_FSTAT_FAILED,
+ "post-operation fstat failed on fd=%p",
+ fd);
+ goto out;
+ }
+
+ if (locked) {
+ pthread_mutex_unlock (&ctx->write_atomic_lock);
+ locked = _gf_false;
+ }
+
+ if (flags & (O_SYNC|O_DSYNC)) {
+ ret = sys_fsync (_fd);
+ if (ret) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_WRITEV_FAILED,
+ "fsync() in writev on fd %d failed",
+ _fd);
+ op_ret = -1;
+ op_errno = errno;
+ goto out;
+ }
+ }
+
+ LOCK (&priv->lock);
+ {
+ priv->write_value += op_ret;
+ }
+ UNLOCK (&priv->lock);
+
+out:
+
+ if (locked) {
+ pthread_mutex_unlock (&ctx->write_atomic_lock);
+ locked = _gf_false;
+ }
+
+ STACK_UNWIND_STRICT (writev, frame, op_ret, op_errno, &preop, &postop,
+ rsp_xdata);
+
+ if (rsp_xdata)
+ dict_unref (rsp_xdata);
+ return 0;
+}
+
+
+int32_t
+posix_statfs (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, dict_t *xdata)
+{
+ char * real_path = NULL;
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ struct statvfs buf = {0, };
+ struct posix_private * priv = NULL;
+ int shared_by = 1;
+ int percent = 0;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+ VALIDATE_OR_GOTO (this->private, out);
+
+ MAKE_INODE_HANDLE (real_path, this, loc, NULL);
+ if (!real_path) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+
+ priv = this->private;
+
+ op_ret = sys_statvfs (real_path, &buf);
+
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_STATVFS_FAILED,
+ "statvfs failed on %s", real_path);
+ goto out;
+ }
+
+ percent = priv->disk_reserve;
+ buf.f_bfree = (buf.f_bfree - ((buf.f_blocks * percent) / 100));
+
+ shared_by = priv->shared_brick_count;
+ if (shared_by > 1) {
+ buf.f_blocks /= shared_by;
+ buf.f_bfree /= shared_by;
+ buf.f_bavail /= shared_by;
+ buf.f_files /= shared_by;
+ buf.f_ffree /= shared_by;
+ buf.f_favail /= shared_by;
+ }
+
+ if (!priv->export_statfs) {
+ buf.f_blocks = 0;
+ buf.f_bfree = 0;
+ buf.f_bavail = 0;
+ buf.f_files = 0;
+ buf.f_ffree = 0;
+ buf.f_favail = 0;
+ }
+
+ op_ret = 0;
+
+out:
+ STACK_UNWIND_STRICT (statfs, frame, op_ret, op_errno, &buf, NULL);
+ return 0;
+}
+
+
+int32_t
+posix_flush (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ int ret = -1;
+ struct posix_fd *pfd = NULL;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
+ "pfd is NULL on fd=%p", fd);
+ goto out;
+ }
+
+ op_ret = 0;
+
+out:
+ STACK_UNWIND_STRICT (flush, frame, op_ret, op_errno, NULL);
+
+ return 0;
+}
+
+
+int32_t
+posix_release (xlator_t *this, fd_t *fd)
+{
+ struct posix_private * priv = NULL;
+ struct posix_fd * pfd = NULL;
+ int ret = -1;
+ uint64_t tmp_pfd = 0;
+
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ priv = this->private;
+
+ ret = fd_ctx_del (fd, this, &tmp_pfd);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_PFD_NULL,
+ "pfd is NULL from fd=%p", fd);
+ goto out;
+ }
+ pfd = (struct posix_fd *)(long)tmp_pfd;
+
+ if (pfd->dir) {
+ gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_DIR_NOT_NULL,
+ "pfd->dir is %p (not NULL) for file fd=%p",
+ pfd->dir, fd);
+ }
+
+ pthread_mutex_lock (&priv->janitor_lock);
+ {
+ INIT_LIST_HEAD (&pfd->list);
+ list_add_tail (&pfd->list, &priv->janitor_fds);
+ pthread_cond_signal (&priv->janitor_cond);
+ }
+ pthread_mutex_unlock (&priv->janitor_lock);
+
+ LOCK (&priv->lock);
+ {
+ priv->nr_files--;
+ }
+ UNLOCK (&priv->lock);
+
+out:
+ return 0;
+}
+
+
+int
+posix_batch_fsync (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, int datasync, dict_t *xdata)
+{
+ call_stub_t *stub = NULL;
+ struct posix_private *priv = NULL;
+
+ priv = this->private;
+
+ stub = fop_fsync_stub (frame, default_fsync, fd, datasync, xdata);
+ if (!stub) {
+ STACK_UNWIND_STRICT (fsync, frame, -1, ENOMEM, 0, 0, 0);
+ return 0;
+ }
+
+ pthread_mutex_lock (&priv->fsync_mutex);
+ {
+ list_add_tail (&stub->list, &priv->fsyncs);
+ priv->fsync_queue_count++;
+ pthread_cond_signal (&priv->fsync_cond);
+ }
+ pthread_mutex_unlock (&priv->fsync_mutex);
+
+ return 0;
+}
+
+
+int32_t
+posix_fsync (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, int32_t datasync, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ int _fd = -1;
+ struct posix_fd * pfd = NULL;
+ int ret = -1;
+ struct iatt preop = {0,};
+ struct iatt postop = {0,};
+ struct posix_private *priv = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+#ifdef GF_DARWIN_HOST_OS
+ /* Always return success in case of fsync in MAC OS X */
+ op_ret = 0;
+ goto out;
+#endif
+
+ priv = this->private;
+
+ if (priv->batch_fsync_mode && xdata && dict_get (xdata, "batch-fsync")) {
+ posix_batch_fsync (frame, this, fd, datasync, xdata);
+ return 0;
+ }
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
+ "pfd not found in fd's ctx");
+ goto out;
+ }
+
+ _fd = pfd->fd;
+
+ op_ret = posix_fdstat (this, _fd, &preop);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_WARNING, errno, P_MSG_FSTAT_FAILED,
+ "pre-operation fstat failed on fd=%p", fd);
+ goto out;
+ }
+
+ if (datasync) {
+ op_ret = sys_fdatasync (_fd);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_FSYNC_FAILED, "fdatasync on fd=%p"
+ "failed:", fd);
+ goto out;
+ }
+ } else {
+ op_ret = sys_fsync (_fd);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_FSYNC_FAILED, "fsync on fd=%p "
+ "failed", fd);
+ goto out;
+ }
+ }
+
+ op_ret = posix_fdstat (this, _fd, &postop);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_WARNING, errno, P_MSG_FSTAT_FAILED,
+ "post-operation fstat failed on fd=%p", fd);
+ goto out;
+ }
+
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (fsync, frame, op_ret, op_errno, &preop, &postop,
+ NULL);
+
+ return 0;
+}
+
+static int gf_posix_xattr_enotsup_log;
+static int
+_handle_setxattr_keyvalue_pair (dict_t *d, char *k, data_t *v,
+ void *tmp)
+{
+ posix_xattr_filler_t *filler = NULL;
+
+ filler = tmp;
+
+ return posix_handle_pair (filler->this, filler->real_path, k, v,
+ filler->flags, filler->stbuf);
+}
+
+#ifdef GF_DARWIN_HOST_OS
+static int
+map_xattr_flags(int flags)
+{
+ /* DARWIN has different defines on XATTR_ flags.
+ There do not seem to be a POSIX standard
+ Parse any other flags over.
+ */
+ int darwinflags = flags & ~(GF_XATTR_CREATE | GF_XATTR_REPLACE | XATTR_REPLACE);
+ if (GF_XATTR_CREATE & flags)
+ darwinflags |= XATTR_CREATE;
+ if (GF_XATTR_REPLACE & flags)
+ darwinflags |= XATTR_REPLACE;
+ return darwinflags;
+}
+#endif
+
+int32_t
+posix_setxattr (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, dict_t *dict, int flags, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char * real_path = NULL;
+ char *acl_xattr = NULL;
+ struct iatt stbuf = {0};
+ int32_t ret = 0;
+ ssize_t acl_size = 0;
+ dict_t *xattr = NULL;
+ posix_xattr_filler_t filler = {0,};
+ struct posix_private *priv = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+ VALIDATE_OR_GOTO (dict, out);
+
+ priv = this->private;
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
+
+ MAKE_INODE_HANDLE (real_path, this, loc, NULL);
+ if (!real_path) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+
+ posix_pstat(this, loc->gfid, real_path, &stbuf);
+
+ op_ret = -1;
+
+ dict_del (dict, GFID_XATTR_KEY);
+ dict_del (dict, GF_XATTR_VOL_ID_KEY);
+ /* the io-stats-dump key should not reach disk */
+ dict_del (dict, GF_XATTR_IOSTATS_DUMP_KEY);
+
+ filler.real_path = real_path;
+ filler.this = this;
+ filler.stbuf = &stbuf;
+
+#ifdef GF_DARWIN_HOST_OS
+ filler.flags = map_xattr_flags(flags);
+#else
+ filler.flags = flags;
+#endif
+ op_ret = dict_foreach (dict, _handle_setxattr_keyvalue_pair,
+ &filler);
+ if (op_ret < 0) {
+ op_errno = -op_ret;
+ op_ret = -1;
+ goto out;
+ }
+
+ xattr = dict_new();
+ if (!xattr)
+ goto out;
+
+/*
+ * FIXFIX: Send the stbuf info in the xdata for now
+ * This is used by DHT to redirect FOPs if the file is being migrated
+ * Ignore errors for now
+ */
+ if (xdata && dict_get (xdata, DHT_IATT_IN_XDATA_KEY)) {
+ ret = posix_pstat(this, loc->gfid, real_path, &stbuf);
+ if (ret)
+ goto out;
+
+ ret = posix_set_iatt_in_dict (xattr, &stbuf);
+ }
+
+/*
+ * ACL can be set on a file/folder using GF_POSIX_ACL_*_KEY xattrs which
+ * won't aware of access-control xlator. To update its context correctly,
+ * POSIX_ACL_*_XATTR stored in xdata which is send in the call_back path.
+ */
+ if (dict_get (dict, GF_POSIX_ACL_ACCESS)) {
+
+ /*
+ * The size of buffer will be know after calling sys_lgetxattr,
+ * so first we allocate buffer with large size(~4k), then we
+ * reduced into required size using GF_REALLO().
+ */
+ acl_xattr = GF_CALLOC (1, ACL_BUFFER_MAX, gf_posix_mt_char);
+ if (!acl_xattr)
+ goto out;
+
+ acl_size = sys_lgetxattr (real_path, POSIX_ACL_ACCESS_XATTR,
+ acl_xattr, ACL_BUFFER_MAX);
+
+ if (acl_size < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_XATTR_FAILED, "Posix acl is not set "
+ "properly at the backend");
+ goto out;
+ }
+
+ /* If acl_size is more than max buffer size, just ignore it */
+ if (acl_size >= ACL_BUFFER_MAX) {
+ gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
+ P_MSG_BUFFER_OVERFLOW, "size of acl is more"
+ "than the buffer");
+ goto out;
+ }
+
+ acl_xattr = GF_REALLOC (acl_xattr, acl_size);
+ if (!acl_xattr)
+ goto out;
+
+ ret = dict_set_bin (xattr, POSIX_ACL_ACCESS_XATTR,
+ acl_xattr, acl_size);
+ if (ret) {
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_SET_XDATA_FAIL, "failed to set"
+ "xdata for acl");
+ GF_FREE (acl_xattr);
+ goto out;
+ }
+ }
+
+ if (dict_get (dict, GF_POSIX_ACL_DEFAULT)) {
+
+ acl_xattr = GF_CALLOC (1, ACL_BUFFER_MAX, gf_posix_mt_char);
+ if (!acl_xattr)
+ goto out;
+
+ acl_size = sys_lgetxattr (real_path, POSIX_ACL_DEFAULT_XATTR,
+ acl_xattr, ACL_BUFFER_MAX);
+
+ if (acl_size < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_XATTR_FAILED, "Posix acl is not set "
+ "properly at the backend");
+ goto out;
+ }
+
+ if (acl_size >= ACL_BUFFER_MAX) {
+ gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
+ P_MSG_BUFFER_OVERFLOW, "size of acl is more"
+ "than the buffer");
+ goto out;
+ }
+
+ acl_xattr = GF_REALLOC (acl_xattr, acl_size);
+ if (!acl_xattr)
+ goto out;
+
+ ret = dict_set_bin (xattr, POSIX_ACL_DEFAULT_XATTR,
+ acl_xattr, acl_size);
+ if (ret) {
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_SET_XDATA_FAIL, "failed to set"
+ "xdata for acl");
+ GF_FREE (acl_xattr);
+ goto out;
+ }
+ }
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (setxattr, frame, op_ret, op_errno, xattr);
+
+ if (xattr)
+ dict_unref (xattr);
+
+ return 0;
+}
+
+
+int
+posix_xattr_get_real_filename (call_frame_t *frame, xlator_t *this, loc_t *loc,
+ const char *key, dict_t *dict, dict_t *xdata)
+{
+ int ret = -1;
+ int op_ret = -1;
+ const char *fname = NULL;
+ char *real_path = NULL;
+ char *found = NULL;
+ DIR *fd = NULL;
+ struct dirent *entry = NULL;
+ struct dirent scratch[2] = {{0,},};
+
+ MAKE_INODE_HANDLE (real_path, this, loc, NULL);
+ if (!real_path) {
+ return -ESTALE;
+ }
+ if (op_ret == -1) {
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
+ "posix_xattr_get_real_filename (lstat) on %s failed",
+ real_path);
+ return -errno;
+ }
+
+ fd = sys_opendir (real_path);
+ if (!fd)
+ return -errno;
+
+ fname = key + strlen (GF_XATTR_GET_REAL_FILENAME_KEY);
+
+ for (;;) {
+ errno = 0;
+ entry = sys_readdir (fd, scratch);
+ if (!entry || errno != 0)
+ break;
+
+ if (strcasecmp (entry->d_name, fname) == 0) {
+ found = gf_strdup (entry->d_name);
+ if (!found) {
+ (void) sys_closedir (fd);
+ return -ENOMEM;
+ }
+ break;
+ }
+ }
+
+ (void) sys_closedir (fd);
+
+ if (!found)
+ return -ENOENT;
+
+ ret = dict_set_dynstr (dict, (char *)key, found);
+ if (ret) {
+ GF_FREE (found);
+ return -ENOMEM;
+ }
+ ret = strlen (found) + 1;
+
+ return ret;
+}
+
+int
+posix_get_ancestry_directory (xlator_t *this, inode_t *leaf_inode,
+ gf_dirent_t *head, char **path, int type,
+ int32_t *op_errno, dict_t *xdata)
+{
+ ssize_t handle_size = 0;
+ struct posix_private *priv = NULL;
+ inode_t *inode = NULL;
+ int ret = -1;
+ char dirpath[PATH_MAX] = {0,};
+
+ priv = this->private;
+
+ handle_size = POSIX_GFID_HANDLE_SIZE(priv->base_path_length);
+
+ ret = posix_make_ancestryfromgfid (this, dirpath, PATH_MAX + 1, head,
+ type | POSIX_ANCESTRY_PATH,
+ leaf_inode->gfid,
+ handle_size, priv->base_path,
+ leaf_inode->table, &inode, xdata,
+ op_errno);
+ if (ret < 0)
+ goto out;
+
+
+ /* there is already a reference in loc->inode */
+ inode_unref (inode);
+
+ if ((type & POSIX_ANCESTRY_PATH) && (path != NULL)) {
+ if (strcmp (dirpath, "/"))
+ dirpath[strlen (dirpath) - 1] = '\0';
+
+ *path = gf_strdup (dirpath);
+ }
+
+out:
+ return ret;
+}
+
+int32_t
+posix_links_in_same_directory (char *dirpath, int count, inode_t *leaf_inode,
+ inode_t *parent, struct stat *stbuf,
+ gf_dirent_t *head, char **path,
+ int type, dict_t *xdata, int32_t *op_errno)
+{
+ int op_ret = -1;
+ gf_dirent_t *gf_entry = NULL;
+ xlator_t *this = NULL;
+ struct posix_private *priv = NULL;
+ DIR *dirp = NULL;
+ struct dirent *entry = NULL;
+ struct dirent scratch[2] = {{0,},};
+ char temppath[PATH_MAX] = {0,};
+ char scr[PATH_MAX * 4] = {0,};
+
+ this = THIS;
+
+ priv = this->private;
+
+ dirp = sys_opendir (dirpath);
+ if (!dirp) {
+ *op_errno = errno;
+ gf_msg (this->name, GF_LOG_WARNING, errno, P_MSG_OPEN_FAILED,
+ "could not opendir %s", dirpath);
+ goto out;
+ }
+
+ while (count > 0) {
+ errno = 0;
+ entry = sys_readdir (dirp, scratch);
+ if (!entry || errno != 0)
+ break;
+
+ if (entry->d_ino != stbuf->st_ino)
+ continue;
+
+ /* Linking an inode here, can cause a race in posix_acl.
+ Parent inode gets linked here, but before
+ it reaches posix_acl_readdirp_cbk, create/lookup can
+ come on a leaf-inode, as parent-inode-ctx not yet updated
+ in posix_acl_readdirp_cbk, create and lookup can fail
+ with EACCESS. So do the inode linking in the quota xlator
+
+ linked_inode = inode_link (leaf_inode, parent,
+ entry->d_name, NULL);
+
+ GF_ASSERT (linked_inode == leaf_inode);
+ inode_unref (linked_inode);*/
+
+ if (type & POSIX_ANCESTRY_DENTRY) {
+ loc_t loc = {0, };
+
+ loc.inode = inode_ref (leaf_inode);
+ gf_uuid_copy (loc.gfid, leaf_inode->gfid);
+
+ (void) snprintf (temppath, sizeof(temppath), "%s/%s",
+ dirpath, entry->d_name);
+
+ gf_entry = gf_dirent_for_name (entry->d_name);
+ gf_entry->inode = inode_ref (leaf_inode);
+ gf_entry->dict
+ = posix_xattr_fill (this, temppath, &loc, NULL,
+ -1, xdata, NULL);
+ iatt_from_stat (&(gf_entry->d_stat), stbuf);
+
+ list_add_tail (&gf_entry->list, &head->list);
+ loc_wipe (&loc);
+ }
+
+ if (type & POSIX_ANCESTRY_PATH) {
+ (void) snprintf (temppath, sizeof(temppath), "%s/%s",
+ &dirpath[priv->base_path_length],
+ entry->d_name);
+ if (!*path) {
+ *path = gf_strdup (temppath);
+ } else {
+ /* creating a colon separated */
+ /* list of hard links */
+ (void) snprintf (scr, sizeof(scr), "%s:%s",
+ *path, temppath);
+
+ GF_FREE (*path);
+ *path = gf_strdup (scr);
+ }
+ if (!*path) {
+ op_ret = -1;
+ *op_errno = ENOMEM;
+ goto out;
+ }
+ }
+
+ count--;
+ }
+
+ op_ret = 0;
+out:
+ if (dirp) {
+ op_ret = sys_closedir (dirp);
+ if (op_ret == -1) {
+ *op_errno = errno;
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_CLOSE_FAILED, "closedir failed");
+ }
+ }
+
+ return op_ret;
+}
+
+int
+posix_get_ancestry_non_directory (xlator_t *this, inode_t *leaf_inode,
+ gf_dirent_t *head, char **path, int type,
+ int32_t *op_errno, dict_t *xdata)
+{
+ size_t remaining_size = 0;
+ int op_ret = -1, pathlen = -1;
+ ssize_t handle_size = 0;
+ uuid_t pgfid = {0,};
+ int nlink_samepgfid = 0;
+ struct stat stbuf = {0,};
+ char *list = NULL;
+ int32_t list_offset = 0;
+ struct posix_private *priv = NULL;
+ ssize_t size = 0;
+ inode_t *parent = NULL;
+ loc_t *loc = NULL;
+ char *leaf_path = NULL;
+ char key[4096] = {0,};
+ char dirpath[PATH_MAX] = {0,};
+ char pgfidstr[UUID_CANONICAL_FORM_LEN+1] = {0,};
+
+ priv = this->private;
+
+ loc = GF_CALLOC (1, sizeof (*loc), gf_posix_mt_char);
+ if (loc == NULL) {
+ op_ret = -1;
+ *op_errno = ENOMEM;
+ goto out;
+ }
+
+ gf_uuid_copy (loc->gfid, leaf_inode->gfid);
+
+ MAKE_INODE_HANDLE (leaf_path, this, loc, NULL);
+ if (!leaf_path) {
+ GF_FREE (loc);
+ *op_errno = ESTALE;
+ goto out;
+ }
+ GF_FREE (loc);
+
+ size = sys_llistxattr (leaf_path, NULL, 0);
+ if (size == -1) {
+ *op_errno = errno;
+ if ((errno == ENOTSUP) || (errno == ENOSYS)) {
+ GF_LOG_OCCASIONALLY (gf_posix_xattr_enotsup_log,
+ this->name, GF_LOG_WARNING,
+ "Extended attributes not "
+ "supported (try remounting brick"
+ " with 'user_xattr' flag)");
+
+ } else {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_XATTR_FAILED, "listxattr failed on"
+ "%s", leaf_path);
+
+ }
+
+ goto out;
+ }
+
+ if (size == 0) {
+ op_ret = 0;
+ goto out;
+ }
+
+ list = alloca (size);
+ if (!list) {
+ *op_errno = errno;
+ goto out;
+ }
+
+ size = sys_llistxattr (leaf_path, list, size);
+ if (size < 0) {
+ op_ret = -1;
+ *op_errno = errno;
+ goto out;
+ }
+ remaining_size = size;
+ list_offset = 0;
+
+ op_ret = sys_lstat (leaf_path, &stbuf);
+ if (op_ret == -1) {
+ *op_errno = errno;
+ gf_msg (this->name, GF_LOG_WARNING, errno, P_MSG_LSTAT_FAILED,
+ "lstat failed on %s", leaf_path);
+ goto out;
+ }
+
+ while (remaining_size > 0) {
+ strncpy (key, list + list_offset, sizeof(key)-1);
+ key[sizeof(key)-1] = '\0';
+ if (strncmp (key, PGFID_XATTR_KEY_PREFIX,
+ strlen (PGFID_XATTR_KEY_PREFIX)) != 0)
+ goto next;
+
+ op_ret = sys_lgetxattr (leaf_path, key,
+ &nlink_samepgfid,
+ sizeof(nlink_samepgfid));
+ if (op_ret == -1) {
+ *op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_XATTR_FAILED, "getxattr failed on "
+ "%s: key = %s ", leaf_path, key);
+ goto out;
+ }
+
+ nlink_samepgfid = ntoh32 (nlink_samepgfid);
+
+ strncpy (pgfidstr, key + strlen(PGFID_XATTR_KEY_PREFIX),
+ sizeof(pgfidstr)-1);
+ pgfidstr[sizeof(pgfidstr)-1] = '\0';
+ gf_uuid_parse (pgfidstr, pgfid);
+
+ handle_size = POSIX_GFID_HANDLE_SIZE(priv->base_path_length);
+
+ /* constructing the absolute real path of parent dir */
+ strncpy (dirpath, priv->base_path, sizeof(dirpath)-1);
+ dirpath[sizeof(dirpath)-1] = '\0';
+ pathlen = PATH_MAX + 1 - priv->base_path_length;
+
+ op_ret = posix_make_ancestryfromgfid (this,
+ dirpath + priv->base_path_length,
+ pathlen,
+ head,
+ type | POSIX_ANCESTRY_PATH,
+ pgfid,
+ handle_size,
+ priv->base_path,
+ leaf_inode->table,
+ &parent, xdata, op_errno);
+ if (op_ret < 0) {
+ goto next;
+ }
+
+ dirpath[strlen (dirpath) - 1] = '\0';
+
+ posix_links_in_same_directory (dirpath, nlink_samepgfid,
+ leaf_inode, parent, &stbuf, head,
+ path, type, xdata, op_errno);
+
+ if (parent != NULL) {
+ inode_unref (parent);
+ parent = NULL;
+ }
+
+ next:
+ remaining_size -= strlen (key) + 1;
+ list_offset += strlen (key) + 1;
+ } /* while (remaining_size > 0) */
+
+ op_ret = 0;
+
+out:
+ return op_ret;
+}
+
+int
+posix_get_ancestry (xlator_t *this, inode_t *leaf_inode,
+ gf_dirent_t *head, char **path, int type, int32_t *op_errno,
+ dict_t *xdata)
+{
+ int ret = -1;
+ struct posix_private *priv = NULL;
+
+ priv = this->private;
+
+ if (IA_ISDIR (leaf_inode->ia_type)) {
+ ret = posix_get_ancestry_directory (this, leaf_inode,
+ head, path, type, op_errno,
+ xdata);
+ } else {
+
+ if (!priv->update_pgfid_nlinks)
+ goto out;
+ ret = posix_get_ancestry_non_directory (this, leaf_inode,
+ head, path, type,
+ op_errno, xdata);
+ }
+
+out:
+ if (ret && path && *path) {
+ GF_FREE (*path);
+ *path = NULL;
+ }
+
+ return ret;
+}
+
+/**
+ * posix_getxattr - this function returns a dictionary with all the
+ * key:value pair present as xattr. used for
+ * both 'listxattr' and 'getxattr'.
+ */
+int32_t
+posix_getxattr (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, const char *name, dict_t *xdata)
+{
+ struct posix_private *priv = NULL;
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char *value = NULL;
+ char *real_path = NULL;
+ dict_t *dict = NULL;
+ char *file_contents = NULL;
+ int ret = -1;
+ char *path = NULL;
+ char *rpath = NULL;
+ ssize_t size = 0;
+ char *list = NULL;
+ int32_t list_offset = 0;
+ size_t remaining_size = 0;
+ char *host_buf = NULL;
+ char *keybuffer = NULL;
+ char *value_buf = NULL;
+ gf_boolean_t have_val = _gf_false;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+ MAKE_INODE_HANDLE (real_path, this, loc, NULL);
+
+ op_ret = -1;
+ priv = this->private;
+
+ ret = posix_handle_georep_xattrs (frame, name, &op_errno, _gf_true);
+ if (ret == -1) {
+ op_ret = -1;
+ /* errno should be set from the above function*/
+ goto out;
+ }
+
+ if (name && posix_is_gfid2path_xattr (name)) {
+ op_ret = -1;
+ op_errno = ENOATTR;
+ goto out;
+ }
+
+ if (loc->inode && IA_ISDIR(loc->inode->ia_type) && name &&
+ ZR_FILE_CONTENT_REQUEST(name)) {
+ ret = posix_get_file_contents (this, loc->gfid, &name[15],
+ &file_contents);
+ if (ret < 0) {
+ op_errno = -ret;
+ gf_msg (this->name, GF_LOG_ERROR, op_errno,
+ P_MSG_FILE_FAILED, "getting file contents"
+ "failed");
+ goto out;
+ }
+ }
+
+ dict = dict_new ();
+ if (!dict) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ if (loc->inode && name && GF_POSIX_ACL_REQUEST (name)) {
+ ret = posix_pacl_get (real_path, name, &value);
+ if (ret || !value) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_ACL_FAILED, "could not get acl (%s) for"
+ "%s", name, real_path);
+ op_ret = -1;
+ goto out;
+ }
+
+ ret = dict_set_dynstr (dict, (char *)name, value);
+ if (ret < 0) {
+ GF_FREE (value);
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_ACL_FAILED, "could not set acl (%s) for"
+ "%s in dictionary", name, real_path);
+ op_ret = -1;
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ size = ret;
+ goto done;
+ }
+
+ if (loc->inode && name &&
+ (strncmp (name, GF_XATTR_GET_REAL_FILENAME_KEY,
+ strlen (GF_XATTR_GET_REAL_FILENAME_KEY)) == 0)) {
+ ret = posix_xattr_get_real_filename (frame, this, loc,
+ name, dict, xdata);
+ if (ret < 0) {
+ op_ret = -1;
+ op_errno = -ret;
+ if (op_errno == ENOENT) {
+ gf_msg_debug (this->name, 0, "Failed to get "
+ "real filename (%s, %s)",
+ loc->path, name);
+ } else {
+ gf_msg (this->name, GF_LOG_WARNING, op_errno,
+ P_MSG_GETTING_FILENAME_FAILED,
+ "Failed to get real filename (%s, %s):"
+ , loc->path, name);
+ }
+ goto out;
+ }
+
+ size = ret;
+ goto done;
+ }
+
+ if (loc->inode && name && !strcmp (name, GLUSTERFS_OPEN_FD_COUNT)) {
+ if (!fd_list_empty (loc->inode)) {
+ ret = dict_set_uint32 (dict, (char *)name, 1);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_DICT_SET_FAILED, "Failed to set "
+ "dictionary value for %s", name);
+ op_errno = ENOMEM;
+ goto out;
+ }
+ } else {
+ ret = dict_set_uint32 (dict, (char *)name, 0);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_DICT_SET_FAILED, "Failed to set "
+ "dictionary value for %s", name);
+ op_errno = ENOMEM;
+ goto out;
+ }
+ }
+ goto done;
+ }
+ if (loc->inode && name && (XATTR_IS_PATHINFO (name))) {
+ if (LOC_HAS_ABSPATH (loc))
+ MAKE_REAL_PATH (rpath, this, loc->path);
+ else
+ rpath = real_path;
+
+ size = gf_asprintf (&host_buf, "<POSIX(%s):%s:%s>",
+ priv->base_path,
+ ((priv->node_uuid_pathinfo &&
+ !gf_uuid_is_null(priv->glusterd_uuid))
+ ? uuid_utoa (priv->glusterd_uuid)
+ : priv->hostname), rpath);
+ if (size < 0) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+ ret = dict_set_dynstr (dict, (char *)name, host_buf);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_DICT_SET_FAILED, "could not set value"
+ " (%s) in dictionary", host_buf);
+ GF_FREE (host_buf);
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ goto done;
+ }
+
+ if (loc->inode && name &&
+ (strcmp (name, GF_XATTR_NODE_UUID_KEY) == 0)
+ && !gf_uuid_is_null (priv->glusterd_uuid)) {
+ size = gf_asprintf (&host_buf, "%s",
+ uuid_utoa (priv->glusterd_uuid));
+ if (size == -1) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+ ret = dict_set_dynstr (dict, GF_XATTR_NODE_UUID_KEY,
+ host_buf);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, -ret,
+ P_MSG_DICT_SET_FAILED, "could not set value"
+ "(%s) in dictionary", host_buf);
+ GF_FREE (host_buf);
+ op_errno = -ret;
+ goto out;
+ }
+ goto done;
+ }
+
+ if (loc->inode && name &&
+ (strcmp (name, GFID_TO_PATH_KEY) == 0)) {
+ ret = inode_path (loc->inode, NULL, &path);
+ if (ret < 0) {
+ op_errno = -ret;
+ gf_msg (this->name, GF_LOG_WARNING, op_errno,
+ P_MSG_INODE_PATH_GET_FAILED,
+ "%s: could not get "
+ "inode path", uuid_utoa (loc->inode->gfid));
+ goto out;
+ }
+
+ size = ret;
+ ret = dict_set_dynstr (dict, GFID_TO_PATH_KEY, path);
+ if (ret < 0) {
+ op_errno = ENOMEM;
+ GF_FREE (path);
+ goto out;
+ }
+ goto done;
+ }
+
+ if (loc->inode && name &&
+ (strcmp (name, GFID2PATH_VIRT_XATTR_KEY) == 0)) {
+ if (!priv->gfid2path) {
+ op_errno = ENOATTR;
+ op_ret = -1;
+ goto out;
+ }
+ ret = posix_get_gfid2path (this, loc->inode, real_path,
+ &op_errno, dict);
+ if (ret < 0) {
+ op_ret = -1;
+ goto out;
+ }
+ size = ret;
+ goto done;
+ }
+
+ if (loc->inode && name
+ && (strcmp (name, GET_ANCESTRY_PATH_KEY) == 0)) {
+ int type = POSIX_ANCESTRY_PATH;
+
+ op_ret = posix_get_ancestry (this, loc->inode, NULL,
+ &path, type, &op_errno,
+ xdata);
+ if (op_ret < 0) {
+ op_ret = -1;
+ op_errno = ENODATA;
+ goto out;
+ }
+ size = op_ret;
+ op_ret = dict_set_dynstr (dict, GET_ANCESTRY_PATH_KEY, path);
+ if (op_ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, -op_ret,
+ P_MSG_GET_KEY_VALUE_FAILED, "could not get "
+ "value for key (%s)", GET_ANCESTRY_PATH_KEY);
+ GF_FREE (path);
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ goto done;
+ }
+
+ if (loc->inode && name
+ && (strncmp (name, GLUSTERFS_GET_OBJECT_SIGNATURE,
+ strlen (GLUSTERFS_GET_OBJECT_SIGNATURE)) == 0)) {
+ op_ret = posix_get_objectsignature (real_path, dict);
+ if (op_ret < 0) {
+ op_errno = -op_ret;
+ goto out;
+ }
+
+ goto done;
+ }
+
+ /* here allocate value_buf of 8192 bytes to avoid one extra getxattr
+ call,If buffer size is small to hold the xattr result then it will
+ allocate a new buffer value of required size and call getxattr again
+ */
+
+ value_buf = alloca (XATTR_VAL_BUF_SIZE);
+ if (name) {
+ char *key = (char *)name;
+
+ keybuffer = key;
+#if defined(GF_DARWIN_HOST_OS_DISABLED)
+ if (priv->xattr_user_namespace == XATTR_STRIP) {
+ if (strncmp(key, "user.",5) == 0) {
+ key += 5;
+ gf_msg_debug (this->name, 0, "getxattr for file %s"
+ " stripping user key: %s -> %s",
+ real_path, keybuffer, key);
+ }
+ }
+#endif
+ memset (value_buf, '\0', XATTR_VAL_BUF_SIZE);
+ size = sys_lgetxattr (real_path, key, value_buf,
+ XATTR_VAL_BUF_SIZE-1);
+ if (size >= 0) {
+ have_val = _gf_true;
+ } else {
+ if (errno == ERANGE) {
+ gf_msg (this->name, GF_LOG_INFO, errno,
+ P_MSG_XATTR_FAILED,
+ "getxattr failed due to overflow of buffer"
+ " on %s: %s ", real_path, key);
+ size = sys_lgetxattr (real_path, key, NULL, 0);
+ }
+ if (size == -1) {
+ op_errno = errno;
+ if ((op_errno == ENOTSUP) ||
+ (op_errno == ENOSYS)) {
+ GF_LOG_OCCASIONALLY (gf_posix_xattr_enotsup_log,
+ this->name,
+ GF_LOG_WARNING,
+ "Extended attributes not "
+ "supported (try remounting"
+ " brick with 'user_xattr' "
+ "flag)");
+ }
+ if ((op_errno == ENOATTR) ||
+ (op_errno == ENODATA)) {
+ gf_msg_debug (this->name, 0,
+ "No such attribute:%s for file %s",
+ key, real_path);
+ } else {
+ gf_msg (this->name, GF_LOG_ERROR,
+ op_errno, P_MSG_XATTR_FAILED,
+ "getxattr failed on %s: %s ",
+ real_path, key);
+ }
+ goto out;
+ }
+ }
+ value = GF_CALLOC (size + 1, sizeof(char), gf_posix_mt_char);
+ if (!value) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ goto out;
+ }
+ if (have_val) {
+ memcpy (value, value_buf, size);
+ } else {
+ size = sys_lgetxattr (real_path, key, value, size);
+ if (size == -1) {
+ op_ret = -1;
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_XATTR_FAILED,
+ "getxattr failed on %s: key = %s",
+ real_path, key);
+ GF_FREE (value);
+ goto out;
+ }
+ }
+ value [size] = '\0';
+ op_ret = dict_set_dynptr (dict, key, value, size);
+ if (op_ret < 0) {
+ op_errno = -op_ret;
+ gf_msg (this->name, GF_LOG_ERROR, op_errno,
+ P_MSG_DICT_SET_FAILED, "dict set operation "
+ "on %s for the key %s failed.", real_path, key);
+ GF_FREE (value);
+ goto out;
+ }
+
+ goto done;
+ }
+
+ have_val = _gf_false;
+ memset (value_buf, '\0', XATTR_VAL_BUF_SIZE);
+ size = sys_llistxattr (real_path, value_buf, XATTR_VAL_BUF_SIZE-1);
+ if (size > 0) {
+ have_val = _gf_true;
+ } else {
+ if (errno == ERANGE) {
+ gf_msg (this->name, GF_LOG_INFO, errno,
+ P_MSG_XATTR_FAILED,
+ "listxattr failed due to overflow of buffer"
+ " on %s ", real_path);
+ size = sys_llistxattr (real_path, NULL, 0);
+ }
+ if (size == -1) {
+ op_errno = errno;
+ if ((errno == ENOTSUP) || (errno == ENOSYS)) {
+ GF_LOG_OCCASIONALLY (gf_posix_xattr_enotsup_log,
+ this->name, GF_LOG_WARNING,
+ "Extended attributes not "
+ "supported (try remounting"
+ " brick with 'user_xattr' "
+ "flag)");
+ } else {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_XATTR_FAILED,
+ "listxattr failed on %s", real_path);
+ }
+ goto out;
+ }
+ if (size == 0)
+ goto done;
+ }
+ list = alloca (size);
+ if (!list) {
+ op_errno = errno;
+ goto out;
+ }
+ if (have_val) {
+ memcpy (list, value_buf, size);
+ } else {
+ size = sys_llistxattr (real_path, list, size);
+ if (size < 0) {
+ op_ret = -1;
+ op_errno = errno;
+ goto out;
+ }
+ }
+ remaining_size = size;
+ list_offset = 0;
+ keybuffer = alloca (XATTR_KEY_BUF_SIZE);
+ while (remaining_size > 0) {
+ strncpy (keybuffer, list + list_offset, XATTR_KEY_BUF_SIZE-1);
+ keybuffer[XATTR_KEY_BUF_SIZE-1] = '\0';
+
+ ret = posix_handle_georep_xattrs (frame, keybuffer, NULL,
+ _gf_false);
+ if (ret == -1)
+ goto ignore;
+
+ if (posix_is_gfid2path_xattr (keybuffer)) {
+ goto ignore;
+ }
+
+ memset (value_buf, '\0', XATTR_VAL_BUF_SIZE);
+ have_val = _gf_false;
+ size = sys_lgetxattr (real_path, keybuffer, value_buf,
+ XATTR_VAL_BUF_SIZE-1);
+ if (size >= 0) {
+ have_val = _gf_true;
+ } else {
+ if (errno == ERANGE) {
+ gf_msg (this->name, GF_LOG_INFO, op_errno,
+ P_MSG_XATTR_FAILED,
+ "getxattr failed due to overflow of"
+ " buffer on %s: %s ", real_path,
+ keybuffer);
+ size = sys_lgetxattr (real_path, keybuffer,
+ NULL, 0);
+ }
+ if (size == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_XATTR_FAILED, "getxattr failed on"
+ " %s: key = %s ", real_path, keybuffer);
+ goto out;
+ }
+ }
+ value = GF_CALLOC (size + 1, sizeof(char),
+ gf_posix_mt_char);
+ if (!value) {
+ op_errno = errno;
+ goto out;
+ }
+ if (have_val) {
+ memcpy (value, value_buf, size);
+ } else {
+ size = sys_lgetxattr (real_path, keybuffer, value, size);
+ if (size == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_XATTR_FAILED, "getxattr failed on"
+ " %s: key = %s ", real_path, keybuffer);
+ GF_FREE (value);
+ goto out;
+ }
+ }
+ value [size] = '\0';
+#ifdef GF_DARWIN_HOST_OS
+ /* The protocol expect namespace for now */
+ char *newkey = NULL;
+ gf_add_prefix (XATTR_USER_PREFIX, keybuffer, &newkey);
+ strncpy (keybuffer, newkey, sizeof(keybuffer));
+ GF_FREE (newkey);
+#endif
+ op_ret = dict_set_dynptr (dict, keybuffer, value, size);
+ if (op_ret < 0) {
+ op_errno = -op_ret;
+ gf_msg (this->name, GF_LOG_ERROR, op_errno,
+ P_MSG_DICT_SET_FAILED, "dict set operation "
+ "on %s for the key %s failed.", real_path,
+ keybuffer);
+ GF_FREE (value);
+ goto out;
+ }
+
+ignore:
+ remaining_size -= strlen (keybuffer) + 1;
+ list_offset += strlen (keybuffer) + 1;
+
+ } /* while (remaining_size > 0) */
+
+done:
+ op_ret = size;
+
+ if (dict) {
+ dict_del (dict, GFID_XATTR_KEY);
+ dict_del (dict, GF_XATTR_VOL_ID_KEY);
+ }
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (getxattr, frame, op_ret, op_errno, dict, NULL);
+
+ if (dict) {
+ dict_unref (dict);
+ }
+
+ return 0;
+}
+
+
+int32_t
+posix_fgetxattr (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, const char *name, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = EINVAL;
+ struct posix_fd * pfd = NULL;
+ int _fd = -1;
+ int32_t list_offset = 0;
+ ssize_t size = 0;
+ size_t remaining_size = 0;
+ char * value = NULL;
+ char * list = NULL;
+ dict_t * dict = NULL;
+ int ret = -1;
+ char key[4096] = {0,};
+ char *value_buf = NULL;
+ gf_boolean_t have_val = _gf_false;
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ op_ret = -1;
+ gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
+ "pfd is NULL from fd=%p", fd);
+ goto out;
+ }
+
+ _fd = pfd->fd;
+
+ /* Get the total size */
+ dict = dict_new ();
+ if (!dict) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ if (name && !strcmp (name, GLUSTERFS_OPEN_FD_COUNT)) {
+ ret = dict_set_uint32 (dict, (char *)name, 1);
+ if (ret < 0) {
+ op_ret = -1;
+ size = -1;
+ op_errno = ENOMEM;
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_DICT_SET_FAILED, "Failed to set "
+ "dictionary value for %s", name);
+ goto out;
+ }
+ goto done;
+ }
+
+ if (name && strncmp (name, GLUSTERFS_GET_OBJECT_SIGNATURE,
+ strlen (GLUSTERFS_GET_OBJECT_SIGNATURE)) == 0) {
+ op_ret = posix_fdget_objectsignature (_fd, dict);
+ if (op_ret < 0) {
+ gf_msg (this->name, GF_LOG_ERROR, 0, 0,
+ "posix_fdget_objectsignature failed");
+ op_errno = -op_ret;
+ op_ret = -1;
+ size = -1;
+ goto out;
+ }
+
+ goto done;
+ }
+
+ /* here allocate value_buf of 8192 bytes to avoid one extra getxattr
+ call,If buffer size is small to hold the xattr result then it will
+ allocate a new buffer value of required size and call getxattr again
+ */
+ value_buf = alloca (XATTR_VAL_BUF_SIZE);
+ memset (value_buf, '\0', XATTR_VAL_BUF_SIZE);
+
+ if (name) {
+ strncpy (key, name, sizeof(key));
+#ifdef GF_DARWIN_HOST_OS
+ struct posix_private *priv = NULL;
+ priv = this->private;
+ if (priv->xattr_user_namespace == XATTR_STRIP) {
+ char *newkey = NULL;
+ gf_add_prefix (XATTR_USER_PREFIX, key, &newkey);
+ strncpy (key, newkey, sizeof(key));
+ GF_FREE (newkey);
+ }
+#endif
+ size = sys_fgetxattr (_fd, key, value_buf,
+ XATTR_VAL_BUF_SIZE-1);
+ if (size >= 0) {
+ have_val = _gf_true;
+ } else {
+ if (errno == ERANGE) {
+ gf_msg (this->name, GF_LOG_INFO, errno,
+ P_MSG_XATTR_FAILED,
+ "fgetxattr failed due to overflow of"
+ "buffer on %s ", key);
+ size = sys_fgetxattr (_fd, key, NULL, 0);
+ }
+ if (size == -1) {
+ op_errno = errno;
+ if (errno == ENODATA || errno == ENOATTR) {
+ gf_msg_debug (this->name, 0, "fgetxattr"
+ " failed on key %s (%s)",
+ key, strerror (op_errno));
+ } else {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_XATTR_FAILED, "fgetxattr"
+ " failed on key %s", key);
+ }
+ goto done;
+ }
+ }
+ value = GF_CALLOC (size + 1, sizeof(char), gf_posix_mt_char);
+ if (!value) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ goto out;
+ }
+ if (have_val) {
+ memcpy (value, value_buf, size);
+ } else {
+ size = sys_fgetxattr (_fd, key, value, size);
+ if (size == -1) {
+ op_ret = -1;
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_XATTR_FAILED, "fgetxattr"
+ " failed on fd %p for the key %s ",
+ fd, key);
+ GF_FREE (value);
+ goto out;
+ }
+ }
+
+ value [size] = '\0';
+ op_ret = dict_set_dynptr (dict, key, value, size);
+ if (op_ret < 0) {
+ op_errno = -op_ret;
+ op_ret = -1;
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_DICT_SET_FAILED, "dict set operation "
+ "on key %s failed", key);
+ GF_FREE (value);
+ goto out;
+ }
+
+ goto done;
+ }
+ memset (value_buf, '\0', XATTR_VAL_BUF_SIZE);
+ size = sys_flistxattr (_fd, value_buf, XATTR_VAL_BUF_SIZE-1);
+ if (size > 0) {
+ have_val = _gf_true;
+ } else {
+ if (errno == ERANGE) {
+ gf_msg (this->name, GF_LOG_INFO, errno,
+ P_MSG_XATTR_FAILED,
+ "listxattr failed due to overflow of buffer"
+ " on %p ", fd);
+ size = sys_flistxattr (_fd, NULL, 0);
+ }
+ if (size == -1) {
+ op_ret = -1;
+ op_errno = errno;
+ if ((errno == ENOTSUP) || (errno == ENOSYS)) {
+ GF_LOG_OCCASIONALLY (gf_posix_xattr_enotsup_log,
+ this->name, GF_LOG_WARNING,
+ "Extended attributes not "
+ "supported (try remounting "
+ "brick with 'user_xattr' flag)");
+ } else {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_XATTR_FAILED, "listxattr failed "
+ "on %p:", fd);
+ }
+ goto out;
+ }
+ if (size == 0)
+ goto done;
+ }
+ list = alloca (size + 1);
+ if (!list) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ goto out;
+ }
+ if (have_val)
+ memcpy (list, value_buf, size);
+ else
+ size = sys_flistxattr (_fd, list, size);
+
+ remaining_size = size;
+ list_offset = 0;
+ while (remaining_size > 0) {
+ if(*(list + list_offset) == '\0')
+ break;
+
+ strncpy (key, list + list_offset, sizeof(key));
+ memset (value_buf, '\0', XATTR_VAL_BUF_SIZE);
+ have_val = _gf_false;
+ size = sys_fgetxattr (_fd, key, value_buf,
+ XATTR_VAL_BUF_SIZE-1);
+ if (size >= 0) {
+ have_val = _gf_true;
+ } else {
+ if (errno == ERANGE) {
+ gf_msg (this->name, GF_LOG_INFO, errno,
+ P_MSG_XATTR_FAILED,
+ "fgetxattr failed due to overflow of buffer"
+ " on fd %p: for the key %s ", fd, key);
+ size = sys_fgetxattr (_fd, key, NULL, 0);
+ }
+ if (size == -1) {
+ op_ret = -1;
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_XATTR_FAILED, "fgetxattr failed "
+ "on fd %p for the key %s ", fd, key);
+ break;
+ }
+ }
+ value = GF_CALLOC (size + 1, sizeof(char),
+ gf_posix_mt_char);
+ if (!value) {
+ op_ret = -1;
+ op_errno = errno;
+ goto out;
+ }
+ if (have_val) {
+ memcpy (value, value_buf, size);
+ } else {
+ size = sys_fgetxattr (_fd, key, value, size);
+ if (size == -1) {
+ op_ret = -1;
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_XATTR_FAILED, "fgetxattr failed o"
+ "n the fd %p for the key %s ", fd, key);
+ GF_FREE (value);
+ break;
+ }
+ }
+ value [size] = '\0';
+
+ op_ret = dict_set_dynptr (dict, key, value, size);
+ if (op_ret) {
+ op_errno = -op_ret;
+ op_ret = -1;
+ gf_msg (this->name, GF_LOG_ERROR, 0,
+ P_MSG_DICT_SET_FAILED, "dict set operation "
+ "failed on key %s", key);
+ GF_FREE (value);
+ goto out;
+ }
+ remaining_size -= strlen (key) + 1;
+ list_offset += strlen (key) + 1;
+
+ } /* while (remaining_size > 0) */
+
+done:
+ op_ret = size;
+
+ if (dict) {
+ dict_del (dict, GFID_XATTR_KEY);
+ dict_del (dict, GF_XATTR_VOL_ID_KEY);
+ }
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (fgetxattr, frame, op_ret, op_errno, dict, NULL);
+
+ if (dict)
+ dict_unref (dict);
+
+ return 0;
+}
+
+static int
+_handle_fsetxattr_keyvalue_pair (dict_t *d, char *k, data_t *v,
+ void *tmp)
+{
+ posix_xattr_filler_t *filler = NULL;
+
+ filler = tmp;
+
+ return posix_fhandle_pair (filler->this, filler->fdnum, k, v,
+ filler->flags, filler->stbuf);
+}
+
+int32_t
+posix_fsetxattr (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, dict_t *dict, int flags, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ struct posix_fd *pfd = NULL;
+ int _fd = -1;
+ int ret = -1;
+ struct iatt stbuf = {0,};
+ dict_t *xattr = NULL;
+ posix_xattr_filler_t filler = {0,};
+ struct posix_private *priv = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+ VALIDATE_OR_GOTO (dict, out);
+
+ priv = this->private;
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
+ "pfd is NULL from fd=%p", fd);
+ goto out;
+ }
+ _fd = pfd->fd;
+
+ ret = posix_fdstat (this, pfd->fd, &stbuf);
+ if (ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, op_errno,
+ P_MSG_FSTAT_FAILED, "fsetxattr (fstat)"
+ "failed on fd=%p", fd);
+ goto out;
+ }
+
+ dict_del (dict, GFID_XATTR_KEY);
+ dict_del (dict, GF_XATTR_VOL_ID_KEY);
+
+ filler.fdnum = _fd;
+ filler.this = this;
+ filler.stbuf = &stbuf;
+#ifdef GF_DARWIN_HOST_OS
+ filler.flags = map_xattr_flags(flags);
+#else
+ filler.flags = flags;
+#endif
+ op_ret = dict_foreach (dict, _handle_fsetxattr_keyvalue_pair,
+ &filler);
+ if (op_ret < 0) {
+ op_errno = -op_ret;
+ op_ret = -1;
+ }
+
+ if (!ret && xdata && dict_get (xdata, GLUSTERFS_DURABLE_OP)) {
+ op_ret = sys_fsync (_fd);
+ if (op_ret < 0) {
+ op_ret = -1;
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_DURABILITY_REQ_NOT_SATISFIED,
+ "could not satisfy durability request: "
+ "reason ");
+ }
+ }
+
+ if (xdata && dict_get (xdata, DHT_IATT_IN_XDATA_KEY)) {
+ ret = posix_fdstat (this, pfd->fd, &stbuf);
+ if (ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, op_errno,
+ P_MSG_XATTR_FAILED, "fsetxattr (fstat)"
+ "failed on fd=%p", fd);
+ goto out;
+ }
+
+ xattr = dict_new ();
+ if (!xattr)
+ goto out;
+ ret = posix_set_iatt_in_dict (xattr, &stbuf);
+ }
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (fsetxattr, frame, op_ret, op_errno, xattr);
+
+ if (xattr)
+ dict_unref (xattr);
+
+ return 0;
+}
+
+int
+_posix_remove_xattr (dict_t *dict, char *key, data_t *value, void *data)
+{
+ int32_t op_ret = 0;
+ xlator_t *this = NULL;
+ posix_xattr_filler_t *filler = NULL;
+
+ filler = (posix_xattr_filler_t *) data;
+ this = filler->this;
+#ifdef GF_DARWIN_HOST_OS
+ struct posix_private *priv = NULL;
+ priv = (struct posix_private *) this->private;
+ char *newkey = NULL;
+ if (priv->xattr_user_namespace == XATTR_STRIP) {
+ gf_remove_prefix (XATTR_USER_PREFIX, key, &newkey);
+ gf_msg_debug ("remove_xattr", 0, "key %s => %s" , key,
+ newkey);
+ key = newkey;
+ }
+#endif
+ /* Bulk remove xattr is internal fop in gluster. Some of the xattrs may
+ * have special behavior. Ex: removexattr("posix.system_acl_access"),
+ * removes more than one xattr on the file that could be present in the
+ * bulk-removal request. Removexattr of these deleted xattrs will fail
+ * with either ENODATA/ENOATTR. Since all this fop cares is removal of the
+ * xattrs in bulk-remove request and if they are already deleted, it can be
+ * treated as success.
+ */
+
+ if (filler->real_path)
+ op_ret = sys_lremovexattr (filler->real_path, key);
+ else
+ op_ret = sys_fremovexattr (filler->fdnum, key);
+
+ if (op_ret == -1) {
+ if (errno == ENODATA || errno == ENOATTR)
+ op_ret = 0;
+ }
+
+ if (op_ret == -1) {
+ filler->op_errno = errno;
+ if (errno != ENOATTR && errno != ENODATA && errno != EPERM) {
+ gf_msg (this->name, GF_LOG_ERROR, errno,
+ P_MSG_XATTR_FAILED, "removexattr failed on "
+ "file/dir %s with gfid: %s (for %s)",
+ filler->real_path?filler->real_path:"",
+ uuid_utoa (filler->inode->gfid), key);
+ }
+ }
+#ifdef GF_DARWIN_HOST_OS
+ GF_FREE(newkey);
+#endif
+ return op_ret;
+}
+
+int
+posix_common_removexattr (call_frame_t *frame, loc_t *loc, fd_t *fd,
+ const char *name, dict_t *xdata, int *op_errno,
+ dict_t **xdata_rsp)
+{
+ gf_boolean_t bulk_removexattr = _gf_false;
+ gf_boolean_t disallow = _gf_false;
+ char *real_path = NULL;
+ struct posix_fd *pfd = NULL;
+ int op_ret = 0;
+ struct iatt stbuf = {0};
+ int ret = 0;
+ int _fd = -1;
+ xlator_t *this = frame->this;
+ inode_t *inode = NULL;
+ posix_xattr_filler_t filler = {0};
+
+ DECLARE_OLD_FS_ID_VAR;
+
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ if (loc) {
+ MAKE_INODE_HANDLE (real_path, this, loc, NULL);
+ if (!real_path) {
+ op_ret = -1;
+ *op_errno = ESTALE;
+ goto out;
+ }
+ inode = loc->inode;
+ } else {
+ op_ret = posix_fd_ctx_get (fd, this, &pfd, op_errno);
+ if (op_ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, *op_errno,
+ P_MSG_PFD_NULL, "pfd is NULL from fd=%p", fd);
+ goto out;
+ }
+ _fd = pfd->fd;
+ inode = fd->inode;
+ }
+
+ if (posix_is_gfid2path_xattr (name)) {
+ op_ret = -1;
+ *op_errno = ENOATTR;
+ goto out;
+ }
+
+ if (gf_get_index_by_elem (disallow_removexattrs, (char *)name) >= 0) {
+ gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_XATTR_NOT_REMOVED,
+ "Remove xattr called on %s for file/dir %s with gfid: "
+ "%s", name, real_path?real_path:"",
+ uuid_utoa(inode->gfid));
+ op_ret = -1;
+ *op_errno = EPERM;
+ goto out;
+ } else if (posix_is_bulk_removexattr ((char *)name, xdata)) {
+ bulk_removexattr = _gf_true;
+ (void) dict_has_key_from_array (xdata, disallow_removexattrs,
+ &disallow);
+ if (disallow) {
+ gf_msg (this->name, GF_LOG_WARNING, 0,
+ P_MSG_XATTR_NOT_REMOVED,
+ "Bulk removexattr has keys that shouldn't be "
+ "removed for file/dir %s with gfid: %s",
+ real_path?real_path:"", uuid_utoa(inode->gfid));
+ op_ret = -1;
+ *op_errno = EPERM;
+ goto out;
+ }
+ }
+
+ if (bulk_removexattr) {
+ filler.real_path = real_path;
+ filler.this = this;
+ filler.fdnum = _fd;
+ filler.inode = inode;
+ op_ret = dict_foreach (xdata, _posix_remove_xattr, &filler);
+ if (op_ret) {
+ *op_errno = filler.op_errno;
+ goto out;
+ }
+ } else {
+ if (loc)
+ op_ret = sys_lremovexattr (real_path, name);
+ else
+ op_ret = sys_fremovexattr (_fd, name);
+ if (op_ret == -1) {
+ *op_errno = errno;
+ if (*op_errno != ENOATTR && *op_errno != ENODATA &&
+ *op_errno != EPERM) {
+ gf_msg (this->name, GF_LOG_ERROR, *op_errno,
+ P_MSG_XATTR_FAILED,
+ "removexattr on %s with gfid %s "
+ "(for %s)", real_path,
+ uuid_utoa (inode->gfid), name);
+ }
+ goto out;
+ }
+ }
+
+ if (xdata && dict_get (xdata, DHT_IATT_IN_XDATA_KEY)) {
+ if (loc)
+ ret = posix_pstat(this, loc->gfid, real_path, &stbuf);
+ else
+ ret = posix_fdstat (this, _fd, &stbuf);
+ if (ret)
+ goto out;
+ *xdata_rsp = dict_new();
+ if (!*xdata_rsp)
+ goto out;
+
+ ret = posix_set_iatt_in_dict (*xdata_rsp, &stbuf);
+ }
+ op_ret = 0;
+out:
+ SET_TO_OLD_FS_ID ();
+ return op_ret;
+}
+
+int32_t
+posix_removexattr (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, const char *name, dict_t *xdata)
+{
+ int op_ret = 0;
+ int op_errno = 0;
+ dict_t *xdata_rsp = NULL;
+
+ op_ret = posix_common_removexattr (frame, loc, NULL, name, xdata,
+ &op_errno, &xdata_rsp);
+ STACK_UNWIND_STRICT (removexattr, frame, op_ret, op_errno, xdata_rsp);
+
+ if (xdata_rsp)
+ dict_unref (xdata_rsp);
+
+ return 0;
+}
+
+int32_t
+posix_fremovexattr (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, const char *name, dict_t *xdata)
+{
+ int32_t op_ret = 0;
+ int32_t op_errno = 0;
+ dict_t *xdata_rsp = NULL;
+
+ op_ret = posix_common_removexattr (frame, NULL, fd, name, xdata,
+ &op_errno, &xdata_rsp);
+ STACK_UNWIND_STRICT (fremovexattr, frame, op_ret, op_errno, xdata_rsp);
+
+ if (xdata_rsp)
+ dict_unref (xdata_rsp);
+
+ return 0;
+}
+
+
+int32_t
+posix_fsyncdir (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, int datasync, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ int ret = -1;
+ struct posix_fd *pfd = NULL;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
+ "pfd is NULL, fd=%p", fd);
+ goto out;
+ }
+
+ op_ret = 0;
+
+out:
+ STACK_UNWIND_STRICT (fsyncdir, frame, op_ret, op_errno, NULL);
+
+ return 0;
+}
+
+
+void
+posix_print_xattr (dict_t *this,
+ char *key,
+ data_t *value,
+ void *data)
+{
+ gf_msg_debug ("posix", 0,
+ "(key/val) = (%s/%d)", key, data_to_int32 (value));
+}
+
+
+/**
+ * add_array - add two arrays of 32-bit numbers (stored in network byte order)
+ * dest = dest + src
+ * @count: number of 32-bit numbers
+ * FIXME: handle overflow
+ */
+
+static void
+__add_array (int32_t *dest, int32_t *src, int count)
+{
+ int i = 0;
+ int32_t destval = 0;
+ for (i = 0; i < count; i++) {
+ destval = ntoh32 (dest[i]);
+ dest[i] = hton32 (destval + ntoh32 (src[i]));
+ }
+}
+
+static void
+__add_long_array (int64_t *dest, int64_t *src, int count)
+{
+ int i = 0;
+ for (i = 0; i < count; i++) {
+ dest[i] = hton64 (ntoh64 (dest[i]) + ntoh64 (src[i]));
+ }
+}
+
+
+/* functions:
+ __add_array_with_default
+ __add_long_array_with_default
+
+ xattrop type:
+ GF_XATTROP_ADD_ARRAY_WITH_DEFAULT
+ GF_XATTROP_ADD_ARRAY64_WITH_DEFAULT
+
+ These operations are similar to 'GF_XATTROP_ADD_ARRAY',
+ except that it adds a default value if xattr is missing
+ or its value is zero on disk.
+
+ One use-case of this operation is in inode-quota.
+ When a new directory is created, its default dir_count
+ should be set to 1. So when a xattrop performed setting
+ inode-xattrs, it should account initial dir_count
+ 1 if the xattrs are not present
+
+ Here is the usage of this operation
+
+ value required in xdata for each key
+ struct array {
+ int32_t newvalue_1;
+ int32_t newvalue_2;
+ ...
+ int32_t newvalue_n;
+ int32_t default_1;
+ int32_t default_2;
+ ...
+ int32_t default_n;
+ };
+
+ or
+
+ struct array {
+ int32_t value_1;
+ int32_t value_2;
+ ...
+ int32_t value_n;
+ } data[2];
+ fill data[0] with new value to add
+ fill data[1] with default value
+
+ xattrop GF_XATTROP_ADD_ARRAY_WITH_DEFAULT
+ for i from 1 to n
+ {
+ if (xattr (dest_i) is zero or not set in the disk)
+ dest_i = newvalue_i + default_i
+ else
+ dest_i = dest_i + newvalue_i
+ }
+
+ value in xdata after xattrop is successful
+ struct array {
+ int32_t dest_1;
+ int32_t dest_2;
+ ...
+ int32_t dest_n;
+ };
+*/
+static void
+__add_array_with_default (int32_t *dest, int32_t *src, int count)
+{
+ int i = 0;
+ int32_t destval = 0;
+
+ for (i = 0; i < count; i++) {
+ destval = ntoh32 (dest[i]);
+ if (destval == 0)
+ dest[i] = hton32 (ntoh32 (src[i]) +
+ ntoh32 (src[count + i]));
+ else
+ dest[i] = hton32 (destval + ntoh32 (src[i]));
+ }
+}
+
+static void
+__add_long_array_with_default (int64_t *dest, int64_t *src, int count)
+{
+ int i = 0;
+ int64_t destval = 0;
+
+ for (i = 0; i < count; i++) {
+ destval = ntoh64 (dest[i]);
+ if (destval == 0)
+ dest[i] = hton64 (ntoh64 (src[i]) +
+ ntoh64 (src[i + count]));
+ else
+ dest[i] = hton64 (destval + ntoh64 (src[i]));
+ }
+}
+
+static int
+_posix_handle_xattr_keyvalue_pair (dict_t *d, char *k, data_t *v,
+ void *tmp)
+{
+ int size = 0;
+ int count = 0;
+ int op_ret = 0;
+ int op_errno = 0;
+ gf_xattrop_flags_t optype = 0;
+ char *array = NULL;
+ char *dst_data = NULL;
+ inode_t *inode = NULL;
+ xlator_t *this = NULL;
+ posix_xattr_filler_t *filler = NULL;
+ posix_inode_ctx_t *ctx = NULL;
+
+ filler = tmp;
+
+ optype = (gf_xattrop_flags_t)(filler->flags);
+ this = filler->this;
+ inode = filler->inode;
+ count = v->len;
+ if (optype == GF_XATTROP_ADD_ARRAY_WITH_DEFAULT ||
+ optype == GF_XATTROP_ADD_ARRAY64_WITH_DEFAULT)
+ count = count / 2;
+
+ array = GF_CALLOC (count, sizeof (char), gf_posix_mt_char);
+
+#ifdef GF_DARWIN_HOST_OS
+ struct posix_private *priv = NULL;
+ priv = this->private;
+ if (priv->xattr_user_namespace == XATTR_STRIP) {
+ if (strncmp(k, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) == 0) {
+ k += XATTR_USER_PREFIX_LEN;
+ }
+ }
+#endif
+ op_ret = posix_inode_ctx_get_all (inode, this, &ctx);
+ if (op_ret < 0) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ pthread_mutex_lock (&ctx->xattrop_lock);
+ {
+ if (filler->real_path) {
+ size = sys_lgetxattr (filler->real_path, k,
+ (char *)array, count);
+ } else {
+ size = sys_fgetxattr (filler->fdnum, k, (char *)array,
+ count);
+ }
+
+ op_errno = errno;
+ if ((size == -1) && (op_errno != ENODATA) &&
+ (op_errno != ENOATTR)) {
+ if (op_errno == ENOTSUP) {
+ GF_LOG_OCCASIONALLY(gf_posix_xattr_enotsup_log,
+ this->name, GF_LOG_WARNING,
+ "Extended attributes not "
+ "supported by filesystem");
+ } else if (op_errno != ENOENT ||
+ !posix_special_xattr (marker_xattrs,
+ k)) {
+ if (filler->real_path)
+ gf_msg (this->name, fop_log_level (GF_FOP_XATTROP,
+ op_errno), op_errno, P_MSG_XATTR_FAILED,
+ "getxattr failed on %s while "
+ "doing xattrop: Key:%s ",
+ filler->real_path, k);
+ else
+ gf_msg (this->name, GF_LOG_ERROR,
+ op_errno, P_MSG_XATTR_FAILED,
+ "fgetxattr failed on gfid=%s "
+ "while doing xattrop: "
+ "Key:%s (%s)",
+ uuid_utoa (filler->inode->gfid),
+ k, strerror (op_errno));
+ }
+
+ op_ret = -1;
+ goto unlock;
+ }
+
+ if (size == -1 && optype == GF_XATTROP_GET_AND_SET) {
+ GF_FREE (array);
+ array = NULL;
+ }
+
+ /* We only write back the xattr if it has been really modified
+ * (i.e. v->data is not all 0's). Otherwise we return its value
+ * but we don't update anything.
+ *
+ * If the xattr does not exist, a value of all 0's is returned
+ * without creating it. */
+ size = count;
+ if (optype != GF_XATTROP_GET_AND_SET &&
+ mem_0filled(v->data, v->len) == 0)
+ goto unlock;
+
+ dst_data = array;
+ switch (optype) {
+
+ case GF_XATTROP_ADD_ARRAY:
+ __add_array ((int32_t *) array,
+ (int32_t *) v->data, count / 4);
+ break;
+
+ case GF_XATTROP_ADD_ARRAY64:
+ __add_long_array ((int64_t *) array,
+ (int64_t *) v->data,
+ count / 8);
+ break;
+
+ case GF_XATTROP_ADD_ARRAY_WITH_DEFAULT:
+ __add_array_with_default ((int32_t *) array,
+ (int32_t *) v->data,
+ count / 4);
+ break;
+
+ case GF_XATTROP_ADD_ARRAY64_WITH_DEFAULT:
+ __add_long_array_with_default ((int64_t *) array,
+ (int64_t *) v->data,
+ count / 8);
+ break;
+
+ case GF_XATTROP_GET_AND_SET:
+ dst_data = v->data;
+ break;
+
+ default:
+ gf_msg (this->name, GF_LOG_ERROR, EINVAL,
+ P_MSG_UNKNOWN_OP, "Unknown xattrop type (%d)"
+ " on %s. Please send a bug report to "
+ "gluster-devel@gluster.org", optype,
+ filler->real_path);
+ op_ret = -1;
+ op_errno = EINVAL;
+ goto unlock;
+ }
+
+ if (filler->real_path) {
+ size = sys_lsetxattr (filler->real_path, k,
+ dst_data, count, 0);
+ } else {
+ size = sys_fsetxattr (filler->fdnum, k,
+ (char *)dst_data,
+ count, 0);
+ }
+ op_errno = errno;
+ }
+unlock:
+ pthread_mutex_unlock (&ctx->xattrop_lock);
+
+ if (op_ret == -1)
+ goto out;
+
+ if (size == -1) {
+ if (filler->real_path)
+ gf_msg (this->name, GF_LOG_ERROR, op_errno,
+ P_MSG_XATTR_FAILED, "setxattr failed on %s "
+ "while doing xattrop: key=%s",
+ filler->real_path, k);
+ else
+ gf_msg (this->name, GF_LOG_ERROR, op_errno,
+ P_MSG_XATTR_FAILED,
+ "fsetxattr failed on gfid=%s while doing "
+ "xattrop: key=%s (%s)",
+ uuid_utoa (filler->inode->gfid),
+ k, strerror (op_errno));
+ op_ret = -1;
+ goto out;
+ } else if (array) {
+ op_ret = dict_set_bin (filler->xattr, k, array, count);
+ if (op_ret) {
+ if (filler->real_path)
+ gf_msg_debug (this->name, 0,
+ "dict_set_bin failed (path=%s): "
+ "key=%s (%s)", filler->real_path,
+ k, strerror (-size));
+ else
+ gf_msg_debug (this->name, 0,
+ "dict_set_bin failed (gfid=%s): "
+ "key=%s (%s)",
+ uuid_utoa (filler->inode->gfid),
+ k, strerror (-size));
+
+ op_ret = -1;
+ op_errno = EINVAL;
+ GF_FREE (array);
+ goto out;
+ }
+ array = NULL;
+ }
+
+out:
+ if (op_ret < 0)
+ filler->op_errno = op_errno;
+
+ if (array)
+ GF_FREE (array);
+
+ return op_ret;
+}
+
+/**
+ * xattrop - xattr operations - for internal use by GlusterFS
+ * @optype: ADD_ARRAY:
+ * dict should contain:
+ * "key" ==> array of 32-bit numbers
+ */
+
+int
+do_xattrop (call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd,
+ gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata)
+{
+ int op_ret = 0;
+ int op_errno = 0;
+ int _fd = -1;
+ char *real_path = NULL;
+ struct posix_fd *pfd = NULL;
+ inode_t *inode = NULL;
+ posix_xattr_filler_t filler = {0,};
+ dict_t *xattr_rsp = NULL;
+ dict_t *xdata_rsp = NULL;
+ struct iatt stbuf = {0};
+ struct posix_private *priv = NULL;
+
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (xattr, out);
+ VALIDATE_OR_GOTO (this, out);
+
+ priv = this->private;
+ DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
+
+ if (fd) {
+ op_ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (op_ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING,
+ fop_log_level(GF_FOP_FXATTROP, op_errno),
+ P_MSG_PFD_GET_FAILED, "failed to get pfd from"
+ " fd=%p", fd);
+ goto out;
+ }
+ _fd = pfd->fd;
+ }
+
+ if (loc && !gf_uuid_is_null (loc->gfid)) {
+ MAKE_INODE_HANDLE (real_path, this, loc, NULL);
+ if (!real_path) {
+ op_ret = -1;
+ op_errno = ESTALE;
+ goto out;
+ }
+ }
+
+ if (real_path) {
+ inode = loc->inode;
+ } else if (fd) {
+ inode = fd->inode;
+ }
+
+ xattr_rsp = dict_new ();
+ if (xattr_rsp == NULL) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ filler.this = this;
+ filler.fdnum = _fd;
+ filler.real_path = real_path;
+ filler.flags = (int)optype;
+ filler.inode = inode;
+ filler.xattr = xattr_rsp;
+
+ op_ret = dict_foreach (xattr, _posix_handle_xattr_keyvalue_pair,
+ &filler);
+ op_errno = filler.op_errno;
+ if (op_ret < 0)
+ goto out;
+
+ if (!xdata)
+ goto out;
+
+ if (fd) {
+ op_ret = posix_fdstat (this, _fd, &stbuf);
+ } else {
+ op_ret = posix_pstat (this, inode->gfid, real_path,
+ &stbuf);
+ }
+ if (op_ret < 0) {
+ op_errno = errno;
+ goto out;
+ }
+ xdata_rsp = posix_xattr_fill (this, real_path, loc, fd, _fd,
+ xdata, &stbuf);
+ if (!xdata_rsp) {
+ op_ret = -1;
+ op_errno = ENOMEM;
+ }
+out:
+
+ STACK_UNWIND_STRICT (xattrop, frame, op_ret, op_errno, xattr_rsp,
+ xdata_rsp);
+
+ if (xattr_rsp)
+ dict_unref (xattr_rsp);
+
+ if (xdata_rsp)
+ dict_unref (xdata_rsp);
+ return 0;
+}
+
+
+int
+posix_xattrop (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata)
+{
+ do_xattrop (frame, this, loc, NULL, optype, xattr, xdata);
+ return 0;
+}
+
+
+int
+posix_fxattrop (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata)
+{
+ do_xattrop (frame, this, NULL, fd, optype, xattr, xdata);
+ return 0;
+}
+
+int
+posix_access (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int32_t mask, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ char *real_path = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (loc, out);
+
+ MAKE_INODE_HANDLE (real_path, this, loc, NULL);
+ if (!real_path) {
+ op_ret = -1;
+ op_errno = errno;
+ goto out;
+ }
+
+ op_ret = sys_access (real_path, mask & 07);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_ACCESS_FAILED,
+ "access failed on %s", real_path);
+ goto out;
+ }
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (access, frame, op_ret, op_errno, NULL);
+ return 0;
+}
+
+
+int32_t
+posix_ftruncate (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, off_t offset, dict_t *xdata)
+{
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ int _fd = -1;
+ struct iatt preop = {0,};
+ struct iatt postop = {0,};
+ struct posix_fd *pfd = NULL;
+ int ret = -1;
+ struct posix_private *priv = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
+ "pfd is NULL, fd=%p", fd);
+ goto out;
+ }
+
+ _fd = pfd->fd;
+
+ op_ret = posix_fdstat (this, _fd, &preop);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
+ "pre-operation fstat failed on fd=%p", fd);
+ goto out;
+ }
+
+ op_ret = sys_ftruncate (_fd, offset);
+
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_TRUNCATE_FAILED,
+ "ftruncate failed on fd=%p (%"PRId64"", fd, offset);
+ goto out;
+ }
+
+ op_ret = posix_fdstat (this, _fd, &postop);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
+ "post-operation fstat failed on fd=%p", fd);
+ goto out;
+ }
+
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (ftruncate, frame, op_ret, op_errno, &preop,
+ &postop, NULL);
+
+ return 0;
+}
+
+
+int32_t
+posix_fstat (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, dict_t *xdata)
+{
+ int _fd = -1;
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ struct iatt buf = {0,};
+ struct posix_fd *pfd = NULL;
+ dict_t *xattr_rsp = NULL;
+ int ret = -1;
+ struct posix_private *priv = NULL;
+
+ DECLARE_OLD_FS_ID_VAR;
+ SET_FS_ID (frame->root->uid, frame->root->gid);
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ priv = this->private;
+ VALIDATE_OR_GOTO (priv, out);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
+ "pfd is NULL, fd=%p", fd);
+ goto out;
+ }
+
+ _fd = pfd->fd;
+
+ op_ret = posix_fdstat (this, _fd, &buf);
+ if (op_ret == -1) {
+ op_errno = errno;
+ gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
+ "fstat failed on fd=%p", fd);
+ goto out;
+ }
+
+ if (xdata)
+ xattr_rsp = posix_xattr_fill (this, NULL, NULL, fd, _fd, xdata,
+ &buf);
+
+ op_ret = 0;
+
+out:
+ SET_TO_OLD_FS_ID ();
+
+ STACK_UNWIND_STRICT (fstat, frame, op_ret, op_errno, &buf, xattr_rsp);
+ if (xattr_rsp)
+ dict_unref (xattr_rsp);
+ return 0;
+}
+
+int32_t
+posix_lease (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, struct gf_lease *lease, dict_t *xdata)
+{
+ struct gf_lease nullease = {0, };
+
+ gf_msg (this->name, GF_LOG_CRITICAL, EINVAL, P_MSG_LEASE_DISABLED,
+ "\"features/leases\" translator is not loaded. You need"
+ "to use it for proper functioning of your application");
+
+ STACK_UNWIND_STRICT (lease, frame, -1, ENOSYS, &nullease, NULL);
+ return 0;
+}
+
+static int gf_posix_lk_log;
+
+int32_t
+posix_lk (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, int32_t cmd, struct gf_flock *lock, dict_t *xdata)
+{
+ struct gf_flock nullock = {0, };
+
+ GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL,
+ "\"features/locks\" translator is "
+ "not loaded. You need to use it for proper "
+ "functioning of your application.");
+
+ STACK_UNWIND_STRICT (lk, frame, -1, ENOSYS, &nullock, NULL);
+ return 0;
+}
+
+int32_t
+posix_inodelk (call_frame_t *frame, xlator_t *this,
+ const char *volume, loc_t *loc, int32_t cmd,
+ struct gf_flock *lock, dict_t *xdata)
+{
+ GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL,
+ "\"features/locks\" translator is "
+ "not loaded. You need to use it for proper "
+ "functioning of your application.");
+
+ STACK_UNWIND_STRICT (inodelk, frame, -1, ENOSYS, NULL);
+ return 0;
+}
+
+int32_t
+posix_finodelk (call_frame_t *frame, xlator_t *this,
+ const char *volume, fd_t *fd, int32_t cmd,
+ struct gf_flock *lock, dict_t *xdata)
+{
+ GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL,
+ "\"features/locks\" translator is "
+ "not loaded. You need to use it for proper "
+ "functioning of your application.");
+
+ STACK_UNWIND_STRICT (finodelk, frame, -1, ENOSYS, NULL);
+ return 0;
+}
+
+
+int32_t
+posix_entrylk (call_frame_t *frame, xlator_t *this,
+ const char *volume, loc_t *loc, const char *basename,
+ entrylk_cmd cmd, entrylk_type type, dict_t *xdata)
+{
+ GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL,
+ "\"features/locks\" translator is "
+ "not loaded. You need to use it for proper "
+ "functioning of your application.");
+
+ STACK_UNWIND_STRICT (entrylk, frame, -1, ENOSYS, NULL);
+ return 0;
+}
+
+int32_t
+posix_fentrylk (call_frame_t *frame, xlator_t *this,
+ const char *volume, fd_t *fd, const char *basename,
+ entrylk_cmd cmd, entrylk_type type, dict_t *xdata)
+{
+ GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL,
+ "\"features/locks\" translator is "
+ "not loaded. You need to use it for proper "
+ "functioning of your application.");
+
+ STACK_UNWIND_STRICT (fentrylk, frame, -1, ENOSYS, NULL);
+ return 0;
+}
+
+
+int
+posix_fill_readdir (fd_t *fd, DIR *dir, off_t off, size_t size,
+ gf_dirent_t *entries, xlator_t *this, int32_t skip_dirs)
+{
+ off_t in_case = -1;
+ off_t last_off = 0;
+ size_t filled = 0;
+ int count = 0;
+ int32_t this_size = -1;
+ gf_dirent_t *this_entry = NULL;
+ struct posix_fd *pfd = NULL;
+ struct stat stbuf = {0,};
+ char *hpath = NULL;
+ int len = 0;
+ int ret = 0;
+ int op_errno = 0;
+ struct dirent *entry = NULL;
+ struct dirent scratch[2] = {{0,},};
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
+ "pfd is NULL, fd=%p", fd);
+ count = -1;
+ errno = op_errno;
+ goto out;
+ }
+
+ if (skip_dirs) {
+ len = posix_handle_path (this, fd->inode->gfid, NULL, NULL, 0);
+ if (len <= 0) {
+ errno = ESTALE;
+ count = -1;
+ goto out;
+ }
+ hpath = alloca (len + 256); /* NAME_MAX */
+
+ if (posix_handle_path (this, fd->inode->gfid, NULL, hpath,
+ len) <= 0) {
+ errno = ESTALE;
+ count = -1;
+ goto out;
+ }
+
+ len = strlen (hpath);
+ hpath[len] = '/';
+ }
+
+ if (!off) {
+ rewinddir (dir);
+ } else {
+ seekdir (dir, off);
+#ifndef GF_LINUX_HOST_OS
+ if ((u_long)telldir(dir) != off && off != pfd->dir_eof) {
+ gf_msg (THIS->name, GF_LOG_ERROR, EINVAL,
+ P_MSG_DIR_OPERATION_FAILED,
+ "seekdir(0x%llx) failed on dir=%p: "
+ "Invalid argument (offset reused from "
+ "another DIR * structure?)", off, dir);
+ errno = EINVAL;
+ count = -1;
+ goto out;
+ }
+#endif /* GF_LINUX_HOST_OS */
+ }
+
+ while (filled <= size) {
+ in_case = (u_long)telldir (dir);
+
+ if (in_case == -1) {
+ gf_msg (THIS->name, GF_LOG_ERROR, errno,
+ P_MSG_DIR_OPERATION_FAILED,
+ "telldir failed on dir=%p", dir);
+ goto out;
+ }
+
+ errno = 0;
+
+ entry = sys_readdir (dir, scratch);
+
+ if (!entry || errno != 0) {
+ if (errno == EBADF) {
+ gf_msg (THIS->name, GF_LOG_WARNING, errno,
+ P_MSG_DIR_OPERATION_FAILED,
+ "readdir failed on dir=%p",
+ dir);
+ goto out;
+ }
+ break;
+ }
+
+#ifdef __NetBSD__
+ /*
+ * NetBSD with UFS1 backend uses backing files for
+ * extended attributes. They can be found in a
+ * .attribute file located at the root of the filesystem
+ * We hide it to glusterfs clients, since chaos will occur
+ * when the cluster/dht xlator decides to distribute
+ * exended attribute backing file across storage servers.
+ */
+ if (__is_root_gfid (fd->inode->gfid) == 0
+ && (!strcmp(entry->d_name, ".attribute")))
+ continue;
+#endif /* __NetBSD__ */
+
+ if (__is_root_gfid (fd->inode->gfid)
+ && (!strcmp (GF_HIDDEN_PATH, entry->d_name))) {
+ continue;
+ }
+
+ if (skip_dirs) {
+ if (DT_ISDIR (entry->d_type)) {
+ continue;
+ } else if (hpath) {
+ strcpy (&hpath[len+1], entry->d_name);
+ ret = sys_lstat (hpath, &stbuf);
+ if (!ret && S_ISDIR (stbuf.st_mode))
+ continue;
+ }
+ }
+
+ this_size = max (sizeof (gf_dirent_t),
+ sizeof (gfs3_dirplist))
+ + strlen (entry->d_name) + 1;
+
+ if (this_size + filled > size) {
+ seekdir (dir, in_case);
+#ifndef GF_LINUX_HOST_OS
+ if ((u_long)telldir(dir) != in_case &&
+ in_case != pfd->dir_eof) {
+ gf_msg (THIS->name, GF_LOG_ERROR, EINVAL,
+ P_MSG_DIR_OPERATION_FAILED,
+ "seekdir(0x%llx) failed on dir=%p: "
+ "Invalid argument (offset reused from "
+ "another DIR * structure?)",
+ in_case, dir);
+ errno = EINVAL;
+ count = -1;
+ goto out;
+ }
+#endif /* GF_LINUX_HOST_OS */
+ break;
+ }
+
+ this_entry = gf_dirent_for_name (entry->d_name);
+
+ if (!this_entry) {
+ gf_msg (THIS->name, GF_LOG_ERROR, errno,
+ P_MSG_GF_DIRENT_CREATE_FAILED,
+ "could not create "
+ "gf_dirent for entry %s", entry->d_name);
+ goto out;
+ }
+ /*
+ * we store the offset of next entry here, which is
+ * probably not intended, but code using syncop_readdir()
+ * (glfs-heal.c, afr-self-heald.c, pump.c) rely on it
+ * for directory read resumption.
+ */
+ last_off = (u_long)telldir(dir);
+ this_entry->d_off = last_off;
+ this_entry->d_ino = entry->d_ino;
+ this_entry->d_type = entry->d_type;
+
+ list_add_tail (&this_entry->list, &entries->list);
+
+ filled += this_size;
+ count ++;
+ }
+
+ if ((!sys_readdir (dir, scratch) && (errno == 0))) {
+ /* Indicate EOF */
+ errno = ENOENT;
+ /* Remember EOF offset for later detection */
+ pfd->dir_eof = (u_long)last_off;
+ }
+out:
+ return count;
+}
+
+dict_t *
+posix_entry_xattr_fill (xlator_t *this, inode_t *inode,
+ fd_t *fd, char *entry_path, dict_t *dict,
+ struct iatt *stbuf)
+{
+ loc_t tmp_loc = {0,};
+
+ /* if we don't send the 'loc', open-fd-count be a problem. */
+ tmp_loc.inode = inode;
+
+ return posix_xattr_fill (this, entry_path, &tmp_loc, NULL, -1, dict,
+ stbuf);
+
+}
+
+
+#ifdef _DIRENT_HAVE_D_TYPE
+static int
+posix_d_type_from_ia_type (ia_type_t type)
+{
+ switch (type) {
+ case IA_IFDIR: return DT_DIR;
+ case IA_IFCHR: return DT_CHR;
+ case IA_IFBLK: return DT_BLK;
+ case IA_IFIFO: return DT_FIFO;
+ case IA_IFLNK: return DT_LNK;
+ case IA_IFREG: return DT_REG;
+ case IA_IFSOCK: return DT_SOCK;
+ default: return DT_UNKNOWN;
+ }
+}
+#endif
+
+
+int
+posix_readdirp_fill (xlator_t *this, fd_t *fd, gf_dirent_t *entries, dict_t *dict)
+{
+ gf_dirent_t *entry = NULL;
+ inode_table_t *itable = NULL;
+ inode_t *inode = NULL;
+ char *hpath = NULL;
+ int len = 0;
+ struct iatt stbuf = {0, };
+ uuid_t gfid;
+ int ret = -1;
+
+ if (list_empty(&entries->list))
+ return 0;
+
+ itable = fd->inode->table;
+
+ len = posix_handle_path (this, fd->inode->gfid, NULL, NULL, 0);
+ if (len <= 0)
+ return -1;
+ hpath = alloca (len + 256); /* NAME_MAX */
+ if (posix_handle_path (this, fd->inode->gfid, NULL, hpath, len) <= 0)
+ return -1;
+ len = strlen (hpath);
+ hpath[len] = '/';
+
+ list_for_each_entry (entry, &entries->list, list) {
+ memset (gfid, 0, 16);
+ inode = inode_grep (fd->inode->table, fd->inode,
+ entry->d_name);
+ if (inode)
+ gf_uuid_copy (gfid, inode->gfid);
+
+ strcpy (&hpath[len+1], entry->d_name);
+
+ ret = posix_pstat (this, gfid, hpath, &stbuf);
+
+ if (ret == -1) {
+ if (inode)
+ inode_unref (inode);
+ continue;
+ }
+
+ if (!inode)
+ inode = inode_find (itable, stbuf.ia_gfid);
+
+ if (!inode)
+ inode = inode_new (itable);
+
+ entry->inode = inode;
+
+ if (dict) {
+ entry->dict =
+ posix_entry_xattr_fill (this, entry->inode,
+ fd, hpath,
+ dict, &stbuf);
+ }
+
+ entry->d_stat = stbuf;
+ if (stbuf.ia_ino)
+ entry->d_ino = stbuf.ia_ino;
+
+#ifdef _DIRENT_HAVE_D_TYPE
+ if (entry->d_type == DT_UNKNOWN && !IA_ISINVAL(stbuf.ia_type)) {
+ /* The platform supports d_type but the underlying
+ filesystem doesn't. We set d_type to the correct
+ value from ia_type */
+ entry->d_type =
+ posix_d_type_from_ia_type (stbuf.ia_type);
+ }
+#endif
+
+ inode = NULL;
+ }
+
+ return 0;
+}
+
+
+int32_t
+posix_do_readdir (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, size_t size, off_t off, int whichop, dict_t *dict)
+{
+ struct posix_fd *pfd = NULL;
+ DIR *dir = NULL;
+ int ret = -1;
+ int count = 0;
+ int32_t op_ret = -1;
+ int32_t op_errno = 0;
+ gf_dirent_t entries;
+ int32_t skip_dirs = 0;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ INIT_LIST_HEAD (&entries.list);
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
+ "pfd is NULL, fd=%p", fd);
+ goto out;
+ }
+
+ dir = pfd->dir;
+
+ if (!dir) {
+ gf_msg (this->name, GF_LOG_WARNING, EINVAL, P_MSG_PFD_NULL,
+ "dir is NULL for fd=%p", fd);
+ op_errno = EINVAL;
+ goto out;
+ }
+
+ /* When READDIR_FILTER option is set to on, we can filter out
+ * directory's entry from the entry->list.
+ */
+ ret = dict_get_int32 (dict, GF_READDIR_SKIP_DIRS, &skip_dirs);
+
+ LOCK (&fd->lock);
+ {
+ /* posix_fill_readdir performs multiple separate individual
+ readdir() calls to fill up the buffer.
+
+ In case of NFS where the same anonymous FD is shared between
+ different applications, reading a common directory can
+ result in the anonymous fd getting re-used unsafely between
+ the two readdir requests (in two different io-threads).
+
+ It would also help, in the future, to replace the loop
+ around readdir() with a single large getdents() call.
+ */
+ count = posix_fill_readdir (fd, dir, off, size, &entries, this,
+ skip_dirs);
+ }
+ UNLOCK (&fd->lock);
+
+ /* pick ENOENT to indicate EOF */
+ op_errno = errno;
+ op_ret = count;
+
+ if (whichop != GF_FOP_READDIRP)
+ goto out;
+
+ posix_readdirp_fill (this, fd, &entries, dict);
+
+out:
+ STACK_UNWIND_STRICT (readdir, frame, op_ret, op_errno, &entries, NULL);
+
+ gf_dirent_free (&entries);
+
+ return 0;
+}
+
+
+int32_t
+posix_readdir (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, size_t size, off_t off, dict_t *xdata)
+{
+ posix_do_readdir (frame, this, fd, size, off, GF_FOP_READDIR, xdata);
+ return 0;
+}
+
+
+int32_t
+posix_readdirp (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, size_t size, off_t off, dict_t *dict)
+{
+ gf_dirent_t entries;
+ int32_t op_ret = -1, op_errno = 0;
+ gf_dirent_t *entry = NULL;
+
+
+ if ((dict != NULL) && (dict_get (dict, GET_ANCESTRY_DENTRY_KEY))) {
+ INIT_LIST_HEAD (&entries.list);
+
+ op_ret = posix_get_ancestry (this, fd->inode, &entries, NULL,
+ POSIX_ANCESTRY_DENTRY,
+ &op_errno, dict);
+ if (op_ret >= 0) {
+ op_ret = 0;
+
+ list_for_each_entry (entry, &entries.list, list) {
+ op_ret++;
+ }
+ }
+
+ STACK_UNWIND_STRICT (readdir, frame, op_ret, op_errno, &entries,
+ NULL);
+
+ gf_dirent_free (&entries);
+ return 0;
+ }
+
+ posix_do_readdir (frame, this, fd, size, off, GF_FOP_READDIRP, dict);
+ return 0;
+}
+
+int32_t
+posix_rchecksum (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, off_t offset, int32_t len, dict_t *xdata)
+{
+ char *alloc_buf = NULL;
+ char *buf = NULL;
+ int _fd = -1;
+ struct posix_fd *pfd = NULL;
+ int op_ret = -1;
+ int op_errno = 0;
+ int ret = 0;
+ ssize_t bytes_read = 0;
+ int32_t weak_checksum = 0;
+ int32_t zerofillcheck = 0;
+ unsigned char strong_checksum[MD5_DIGEST_LENGTH] = {0};
+ struct posix_private *priv = NULL;
+ dict_t *rsp_xdata = NULL;
+ gf_boolean_t buf_has_zeroes = _gf_false;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (fd, out);
+
+ priv = this->private;
+ memset (strong_checksum, 0, MD5_DIGEST_LENGTH);
+
+ alloc_buf = _page_aligned_alloc (len, &buf);
+ if (!alloc_buf) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ rsp_xdata = dict_new();
+ if (!rsp_xdata) {
+ op_errno = ENOMEM;
+ goto out;
+ }
+
+ ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
+ if (ret < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, -ret, P_MSG_PFD_NULL,
+ "pfd is NULL, fd=%p", fd);
+ goto out;
+ }
+
+ _fd = pfd->fd;
+
+ LOCK (&fd->lock);
+ {
+ if (priv->aio_capable && priv->aio_init_done)
+ __posix_fd_set_odirect (fd, pfd, 0, offset, len);
+
+ bytes_read = sys_pread (_fd, buf, len, offset);
+ if (bytes_read < 0) {
+ gf_msg (this->name, GF_LOG_WARNING, errno,
+ P_MSG_PREAD_FAILED,
+ "pread of %d bytes returned %zd", len,
+ bytes_read);
+
+ op_errno = errno;
+ }
+
+ }
+ UNLOCK (&fd->lock);
+
+ if (bytes_read < 0)
+ goto out;
+
+ if (xdata && dict_get_int32 (xdata, "check-zero-filled",
+ &zerofillcheck) == 0) {
+ buf_has_zeroes = (mem_0filled (buf, bytes_read)) ? _gf_false :
+ _gf_true;
+ ret = dict_set_uint32 (rsp_xdata, "buf-has-zeroes",
+ buf_has_zeroes);
+ if (ret) {
+ gf_msg (this->name, GF_LOG_WARNING, -ret,
+ P_MSG_DICT_SET_FAILED, "%s: Failed to set "
+ "dictionary value for key: %s",
+ uuid_utoa (fd->inode->gfid), "buf-has-zeroes");
+ op_errno = -ret;
+ goto out;
+ }
+ }
+ weak_checksum = gf_rsync_weak_checksum ((unsigned char *) buf, (size_t) ret);
+ gf_rsync_strong_checksum ((unsigned char *) buf, (size_t) bytes_read,
+ (unsigned char *) strong_checksum);
+
+ op_ret = 0;
+out:
+ STACK_UNWIND_STRICT (rchecksum, frame, op_ret, op_errno,
+ weak_checksum, strong_checksum, rsp_xdata);
+ if (rsp_xdata)
+ dict_unref (rsp_xdata);
+ GF_FREE (alloc_buf);
+
+ return 0;
+}
+
+int
+posix_forget (xlator_t *this, inode_t *inode)
+{
+ int ret = 0;
+ char *unlink_path = NULL;
+ uint64_t ctx_uint = 0;
+ posix_inode_ctx_t *ctx = NULL;
+ struct posix_private *priv_posix = NULL;
+
+ priv_posix = (struct posix_private *) this->private;
+
+ ret = inode_ctx_del (inode, this, &ctx_uint);
+ if (!ctx_uint)
+ return 0;
+
+ ctx = (posix_inode_ctx_t *)ctx_uint;
+
+ if (ctx->unlink_flag == GF_UNLINK_TRUE) {
+ POSIX_GET_FILE_UNLINK_PATH(priv_posix->base_path,
+ inode->gfid, unlink_path);
+ if (!unlink_path) {
+ gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
+ P_MSG_UNLINK_FAILED,
+ "Failed to remove gfid :%s",
+ uuid_utoa (inode->gfid));
+ ret = -1;
+ goto out;
+ }
+ ret = sys_unlink(unlink_path);
+ }
+out:
+ pthread_mutex_destroy (&ctx->xattrop_lock);
+ pthread_mutex_destroy (&ctx->write_atomic_lock);
+ pthread_mutex_destroy (&ctx->pgfid_lock);
+ GF_FREE (ctx);
+ return ret;
+}
diff --git a/xlators/storage/posix/src/posix-inode-handle.h b/xlators/storage/posix/src/posix-inode-handle.h
new file mode 100644
index 00000000000..6849276d3db
--- /dev/null
+++ b/xlators/storage/posix/src/posix-inode-handle.h
@@ -0,0 +1,106 @@
+/*
+ Copyright (c) 2011-2017 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 _POSIX_INODE_HANDLE_H
+#define _POSIX_INODE_HANDLE_H
+
+#include <limits.h>
+#include <sys/types.h>
+#include "xlator.h"
+#include "gf-dirent.h"
+#include "posix.h"
+
+/* From Open Group Base Specifications Issue 6 */
+#ifndef _XOPEN_PATH_MAX
+#define _XOPEN_PATH_MAX 1024
+#endif
+
+#define TRASH_DIR "landfill"
+
+#define UUID0_STR "00000000-0000-0000-0000-000000000000"
+#define SLEN(str) (sizeof(str) - 1)
+
+#define LOC_HAS_ABSPATH(loc) (loc && (loc->path) && (loc->path[0] == '/'))
+#define LOC_IS_DIR(loc) (loc && (loc->inode) && \
+ (loc->inode->ia_type == IA_IFDIR))
+#define MAKE_REAL_PATH(var, this, path) do { \
+ size_t path_len = strlen(path); \
+ size_t var_len = path_len + POSIX_BASE_PATH_LEN(this) + 1; \
+ if (POSIX_PATH_MAX(this) != -1 && \
+ var_len >= POSIX_PATH_MAX(this)) { \
+ var = alloca (path_len + 1); \
+ strcpy (var, (path[0] == '/') ? path + 1 : path); \
+ } else { \
+ var = alloca (var_len); \
+ strcpy (var, POSIX_BASE_PATH(this)); \
+ strcpy (&var[POSIX_BASE_PATH_LEN(this)], path); \
+ } \
+ } while (0)
+
+#define MAKE_HANDLE_PATH(var, this, gfid, base) do { \
+ int __len; \
+ __len = posix_handle_path (this, gfid, base, NULL, 0); \
+ if (__len <= 0) \
+ break; \
+ var = alloca (__len); \
+ __len = posix_handle_path (this, gfid, base, var, __len); \
+ if (__len <= 0) \
+ var = NULL; \
+ } while (0)
+
+#define MAKE_INODE_HANDLE(rpath, this, loc, iatt_p) do { \
+ if (gf_uuid_is_null (loc->gfid)) { \
+ gf_msg (this->name, GF_LOG_ERROR, 0, \
+ P_MSG_INODE_HANDLE_CREATE, \
+ "null gfid for path %s", (loc)->path); \
+ break; \
+ } \
+ if (LOC_IS_DIR (loc) && LOC_HAS_ABSPATH (loc)) { \
+ MAKE_REAL_PATH (rpath, this, (loc)->path); \
+ op_ret = posix_pstat (this, (loc)->gfid, rpath, iatt_p); \
+ break; \
+ } \
+ errno = 0; \
+ op_ret = posix_istat (this, loc->gfid, NULL, iatt_p); \
+ if (errno != ELOOP) { \
+ MAKE_HANDLE_PATH (rpath, this, (loc)->gfid, NULL); \
+ if (!rpath) { \
+ op_ret = -1; \
+ gf_msg (this->name, GF_LOG_ERROR, errno, \
+ P_MSG_INODE_HANDLE_CREATE, \
+ "Failed to create inode handle " \
+ "for path %s", (loc)->path); \
+ } \
+ break; \
+ } \
+ /* __ret == -1 && errno == ELOOP */ \
+ } while (0)
+
+#define POSIX_ANCESTRY_PATH (1 << 0)
+#define POSIX_ANCESTRY_DENTRY (1 << 1)
+
+int
+posix_handle_path (xlator_t *this, uuid_t gfid, const char *basename, char *buf,
+ size_t len);
+
+int
+posix_make_ancestryfromgfid (xlator_t *this, char *path, int pathsize,
+ gf_dirent_t *head, int type, uuid_t gfid,
+ const size_t handle_size,
+ const char *priv_base_path,
+ inode_table_t *table, inode_t **parent,
+ dict_t *xdata, int32_t *op_errno);
+
+int
+posix_handle_init (xlator_t *this);
+
+int
+posix_handle_trash_init (xlator_t *this);
+
+#endif /* !_POSIX_INODE_HANDLE_H */
diff --git a/xlators/storage/posix/src/posix.c b/xlators/storage/posix/src/posix.c
index 3b03779f305..d8d908f83cd 100644
--- a/xlators/storage/posix/src/posix.c
+++ b/xlators/storage/posix/src/posix.c
@@ -1,5 +1,5 @@
/*
- Copyright (c) 2006-2012 Red Hat, Inc. <http://www.redhat.com>
+ Copyright (c) 2006-2017 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
@@ -14,8026 +14,16 @@
#define _GNU_SOURCE
#endif
-#include <openssl/md5.h>
-#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>
-#include <signal.h>
-#include <sys/uio.h>
-#include <unistd.h>
-#include <ftw.h>
-
-#ifndef GF_BSD_HOST_OS
-#include <alloca.h>
-#endif /* GF_BSD_HOST_OS */
-
-#ifdef HAVE_LINKAT
-#include <fcntl.h>
-#endif /* HAVE_LINKAT */
-
-#include "glusterfs.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"
-#include "posix-aio.h"
-#include "glusterfs-acl.h"
-#include "posix-messages.h"
-#include "events.h"
-#include "posix-gfid-path.h"
-
-extern char *marker_xattrs[];
-#define ALIGN_SIZE 4096
-
-#undef HAVE_SET_FSID
-#ifdef HAVE_SET_FSID
-
-#define DECLARE_OLD_FS_ID_VAR uid_t old_fsuid; gid_t old_fsgid;
-
-#define SET_FS_ID(uid, gid) do { \
- old_fsuid = setfsuid (uid); \
- old_fsgid = setfsgid (gid); \
- } while (0)
-
-#define SET_TO_OLD_FS_ID() do { \
- setfsuid (old_fsuid); \
- setfsgid (old_fsgid); \
- } while (0)
-
-#else
-
-#define DECLARE_OLD_FS_ID_VAR
-#define SET_FS_ID(uid, gid)
-#define SET_TO_OLD_FS_ID()
-
-#endif
-
-/* Setting microseconds or nanoseconds depending on what's supported:
- The passed in `tv` can be
- struct timespec
- if supported (better, because it supports nanosecond resolution) or
- struct timeval
- otherwise. */
-#if HAVE_UTIMENSAT
-#define SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv, nanosecs) \
- tv.tv_nsec = nanosecs
-#define PATH_SET_TIMESPEC_OR_TIMEVAL(path, tv) \
- (sys_utimensat (AT_FDCWD, path, tv, AT_SYMLINK_NOFOLLOW))
-#else
-#define SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv, nanosecs) \
- tv.tv_usec = nanosecs / 1000
-#define PATH_SET_TIMESPEC_OR_TIMEVAL(path, tv) \
- (lutimes (path, tv))
-#endif
+#include "posix.h"
-static char *disallow_removexattrs[] = {
- GF_XATTR_VOL_ID_KEY,
- GFID_XATTR_KEY,
- NULL
+class_methods_t class_methods = {
+ .init = posix_init,
+ .fini = posix_fini,
+ .reconfigure = posix_reconfigure,
+ .notify = posix_notify
};
-gf_boolean_t
-posix_symlinks_match (xlator_t *this, loc_t *loc, uuid_t gfid)
-{
- struct posix_private *priv = NULL;
- char linkname_actual[PATH_MAX] = {0,};
- char linkname_expected[PATH_MAX] = {0};
- char *dir_handle = NULL;
- ssize_t len = 0;
- size_t handle_size = 0;
- gf_boolean_t ret = _gf_false;
-
- priv = this->private;
- handle_size = POSIX_GFID_HANDLE_SIZE(priv->base_path_length);
- dir_handle = alloca0 (handle_size);
-
- snprintf (linkname_expected, handle_size, "../../%02x/%02x/%s/%s",
- loc->pargfid[0], loc->pargfid[1], uuid_utoa (loc->pargfid),
- loc->name);
-
- MAKE_HANDLE_GFID_PATH (dir_handle, this, gfid, NULL);
- len = sys_readlink (dir_handle, linkname_actual, PATH_MAX);
- if (len < 0)
- goto out;
- linkname_actual[len] = '\0';
-
- if (!strncmp (linkname_actual, linkname_expected, handle_size))
- ret = _gf_true;
-
-out:
- return ret;
-}
-
-dict_t*
-posix_dict_set_nlink (dict_t *req, dict_t *res, int32_t nlink)
-{
- int ret = -1;
-
- if (req == NULL || !dict_get (req, GF_REQUEST_LINK_COUNT_XDATA))
- goto out;
-
- if (res == NULL)
- res = dict_new ();
- if (res == NULL)
- goto out;
-
- ret = dict_set_uint32 (res, GF_RESPONSE_LINK_COUNT_XDATA, nlink);
- if (ret == -1)
- gf_msg ("posix", GF_LOG_WARNING, 0, P_MSG_SET_XDATA_FAIL,
- "Failed to set GF_RESPONSE_LINK_COUNT_XDATA");
-out:
- return res;
-}
-
-int
-posix_forget (xlator_t *this, inode_t *inode)
-{
- int ret = 0;
- char *unlink_path = NULL;
- uint64_t ctx_uint = 0;
- posix_inode_ctx_t *ctx = NULL;
- struct posix_private *priv_posix = NULL;
-
- priv_posix = (struct posix_private *) this->private;
-
- ret = inode_ctx_del (inode, this, &ctx_uint);
- if (!ctx_uint)
- return 0;
-
- ctx = (posix_inode_ctx_t *)ctx_uint;
-
- if (ctx->unlink_flag == GF_UNLINK_TRUE) {
- POSIX_GET_FILE_UNLINK_PATH(priv_posix->base_path,
- inode->gfid, unlink_path);
- if (!unlink_path) {
- gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
- P_MSG_UNLINK_FAILED,
- "Failed to remove gfid :%s",
- uuid_utoa (inode->gfid));
- ret = -1;
- goto out;
- }
- ret = sys_unlink(unlink_path);
- }
-out:
- pthread_mutex_destroy (&ctx->xattrop_lock);
- pthread_mutex_destroy (&ctx->write_atomic_lock);
- pthread_mutex_destroy (&ctx->pgfid_lock);
- GF_FREE (ctx);
- return ret;
-}
-
-/* Regular fops */
-
-int32_t
-posix_lookup (call_frame_t *frame, xlator_t *this,
- loc_t *loc, dict_t *xdata)
-{
- struct iatt buf = {0, };
- int32_t op_ret = -1;
- int32_t entry_ret = 0;
- int32_t op_errno = 0;
- dict_t * xattr = NULL;
- char * real_path = NULL;
- char * par_path = NULL;
- struct iatt postparent = {0,};
- int32_t gfidless = 0;
- char *pgfid_xattr_key = NULL;
- int32_t nlink_samepgfid = 0;
- struct posix_private *priv = NULL;
- posix_inode_ctx_t *ctx = NULL;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- priv = this->private;
-
- /* The Hidden directory should be for housekeeping purpose and it
- should not get any gfid on it */
- if (__is_root_gfid (loc->pargfid) && loc->name
- && (strcmp (loc->name, GF_HIDDEN_PATH) == 0)) {
- gf_msg (this->name, GF_LOG_WARNING, EPERM,
- P_MSG_LOOKUP_NOT_PERMITTED, "Lookup issued on %s,"
- " which is not permitted", GF_HIDDEN_PATH);
- op_errno = EPERM;
- op_ret = -1;
- goto out;
- }
-
- op_ret = dict_get_int32 (xdata, GF_GFIDLESS_LOOKUP, &gfidless);
- op_ret = -1;
- if (gf_uuid_is_null (loc->pargfid) || (loc->name == NULL)) {
- /* nameless lookup */
- MAKE_INODE_HANDLE (real_path, this, loc, &buf);
- } else {
- MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &buf);
-
- if (gf_uuid_is_null (loc->inode->gfid)) {
- op_ret = posix_gfid_heal (this, real_path, loc, xdata);
- if (op_ret < 0) {
- op_errno = -op_ret;
- op_ret = -1;
- goto out;
- }
- MAKE_ENTRY_HANDLE (real_path, par_path, this,
- loc, &buf);
- }
- }
-
- op_errno = errno;
-
- if (op_ret == -1) {
- if (op_errno != ENOENT) {
- gf_msg (this->name, GF_LOG_WARNING, op_errno,
- P_MSG_LSTAT_FAILED,
- "lstat on %s failed",
- real_path ? real_path : "null");
- }
-
- entry_ret = -1;
- goto parent;
- }
-
- if (xdata && (op_ret == 0)) {
- xattr = posix_xattr_fill (this, real_path, loc, NULL, -1, xdata,
- &buf);
- }
-
- if (priv->update_pgfid_nlinks) {
- if (!gf_uuid_is_null (loc->pargfid) && !IA_ISDIR (buf.ia_type)) {
- MAKE_PGFID_XATTR_KEY (pgfid_xattr_key,
- PGFID_XATTR_KEY_PREFIX,
- loc->pargfid);
-
- op_ret = posix_inode_ctx_get_all (loc->inode, this,
- &ctx);
- if (op_ret < 0) {
- op_errno = ENOMEM;
- goto out;
- }
-
- pthread_mutex_lock (&ctx->pgfid_lock);
- {
- SET_PGFID_XATTR_IF_ABSENT (real_path,
- pgfid_xattr_key,
- nlink_samepgfid,
- XATTR_CREATE, op_ret,
- this, unlock);
- }
-unlock:
- pthread_mutex_unlock (&ctx->pgfid_lock);
- }
- }
-
-parent:
- if (par_path) {
- op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_LSTAT_FAILED, "post-operation lstat on"
- " parent %s failed", par_path);
- if (op_errno == ENOENT)
- /* If parent directory is missing in a lookup,
- errno should be ESTALE (bad handle) and not
- ENOENT (missing entry)
- */
- op_errno = ESTALE;
- goto out;
- }
- }
-
- op_ret = entry_ret;
-out:
- if (!op_ret && !gfidless && gf_uuid_is_null (buf.ia_gfid)) {
- gf_msg (this->name, GF_LOG_ERROR, ENODATA, P_MSG_NULL_GFID,
- "buf->ia_gfid is null for "
- "%s", (real_path) ? real_path: "");
- op_ret = -1;
- op_errno = ENODATA;
- }
-
- if (op_ret == 0)
- op_errno = 0;
- STACK_UNWIND_STRICT (lookup, frame, op_ret, op_errno,
- (loc)?loc->inode:NULL, &buf, xattr, &postparent);
-
- if (xattr)
- dict_unref (xattr);
-
- return 0;
-}
-
-
-int32_t
-posix_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata)
-{
- struct iatt buf = {0,};
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- struct posix_private *priv = NULL;
- char *real_path = NULL;
- dict_t *xattr_rsp = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- MAKE_INODE_HANDLE (real_path, this, loc, &buf);
-
- if (op_ret == -1) {
- op_errno = errno;
- if (op_errno == ENOENT) {
- gf_msg_debug(this->name, 0, "lstat on %s failed: %s",
- real_path ? real_path : "<null>",
- strerror (op_errno));
- } else {
- gf_msg (this->name, GF_LOG_ERROR, op_errno,
- P_MSG_LSTAT_FAILED, "lstat on %s failed",
- real_path ? real_path : "<null>");
- }
- goto out;
- }
- if (xdata)
- xattr_rsp = posix_xattr_fill (this, real_path, loc, NULL, -1,
- xdata, &buf);
-
- op_ret = 0;
-
-out:
- SET_TO_OLD_FS_ID();
- STACK_UNWIND_STRICT (stat, frame, op_ret, op_errno, &buf, xattr_rsp);
- if (xattr_rsp)
- dict_unref (xattr_rsp);
-
- return 0;
-}
-
-static inline mode_t override_umask (mode_t mode, mode_t mode_bit)
-{
- gf_msg_debug ("posix", 0, "The value of mode is %u", mode);
- mode = mode >> 9; /* 3x3 (bits for each octal digit)*/
- mode = (mode << 9) | mode_bit;
- gf_msg_debug ("posix", 0, "The value of mode is %u", mode);
- return mode;
-}
-
-static int
-posix_do_chmod (xlator_t *this, const char *path, struct iatt *stbuf)
-{
- int32_t ret = -1;
- mode_t mode = 0;
- mode_t mode_bit = 0;
- struct posix_private *priv = NULL;
- struct stat stat;
- int is_symlink = 0;
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
- ret = sys_lstat (path, &stat);
- if (ret != 0) {
- gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_LSTAT_FAILED,
- "lstat failed: %s", path);
- goto out;
- }
-
- if (S_ISLNK (stat.st_mode))
- is_symlink = 1;
-
- if (S_ISDIR (stat.st_mode)) {
- mode = st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type);
- mode_bit = (mode & priv->create_directory_mask)
- | priv->force_directory_mode;
- mode = override_umask(mode, mode_bit);
- } else {
- mode = st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type);
- mode_bit = (mode & priv->create_mask)
- | priv->force_create_mode;
- mode = override_umask(mode, mode_bit);
- }
- ret = lchmod (path, mode);
- if ((ret == -1) && (errno == ENOSYS)) {
- /* in Linux symlinks are always in mode 0777 and no
- such call as lchmod exists.
- */
- gf_msg_debug (this->name, 0, "%s (%s)", path, strerror (errno));
- if (is_symlink) {
- ret = 0;
- goto out;
- }
-
- ret = sys_chmod (path, mode);
- }
-out:
- return ret;
-}
-
-static int
-posix_do_chown (xlator_t *this,
- const char *path,
- struct iatt *stbuf,
- int32_t valid)
-{
- int32_t ret = -1;
- uid_t uid = -1;
- gid_t gid = -1;
-
- if (valid & GF_SET_ATTR_UID)
- uid = stbuf->ia_uid;
-
- if (valid & GF_SET_ATTR_GID)
- gid = stbuf->ia_gid;
-
- ret = sys_lchown (path, uid, gid);
-
- return ret;
-}
-
-static int
-posix_do_utimes (xlator_t *this,
- const char *path,
- struct iatt *stbuf,
- int valid)
-{
- int32_t ret = -1;
-#if defined(HAVE_UTIMENSAT)
- struct timespec tv[2] = { {0,}, {0,} };
-#else
- struct timeval tv[2] = { {0,}, {0,} };
-#endif
- struct stat stat;
- int is_symlink = 0;
-
- ret = sys_lstat (path, &stat);
- if (ret != 0) {
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_FILE_OP_FAILED, "%s", path);
- goto out;
- }
-
- if (S_ISLNK (stat.st_mode))
- is_symlink = 1;
-
- if ((valid & GF_SET_ATTR_ATIME) == GF_SET_ATTR_ATIME) {
- tv[0].tv_sec = stbuf->ia_atime;
- SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv[0], stbuf->ia_atime_nsec);
- } else {
- /* atime is not given, use current values */
- tv[0].tv_sec = ST_ATIM_SEC (&stat);
- SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv[0], ST_ATIM_NSEC (&stat));
- }
-
- if ((valid & GF_SET_ATTR_MTIME) == GF_SET_ATTR_MTIME) {
- tv[1].tv_sec = stbuf->ia_mtime;
- SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv[1], stbuf->ia_mtime_nsec);
- } else {
- /* mtime is not given, use current values */
- tv[1].tv_sec = ST_MTIM_SEC (&stat);
- SET_TIMESPEC_NSEC_OR_TIMEVAL_USEC(tv[1], ST_MTIM_NSEC (&stat));
- }
-
- ret = PATH_SET_TIMESPEC_OR_TIMEVAL(path, tv);
- if ((ret == -1) && (errno == ENOSYS)) {
- gf_msg_debug (this->name, 0, "%s (%s)",
- path, strerror (errno));
- if (is_symlink) {
- ret = 0;
- goto out;
- }
-
- ret = PATH_SET_TIMESPEC_OR_TIMEVAL(path, tv);
- }
-
-out:
- return ret;
-}
-
-int
-posix_setattr (call_frame_t *frame, xlator_t *this,
- loc_t *loc, struct iatt *stbuf, int32_t valid, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char * real_path = 0;
- struct iatt statpre = {0,};
- struct iatt statpost = {0,};
- dict_t *xattr_rsp = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
- MAKE_INODE_HANDLE (real_path, this, loc, &statpre);
-
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "setattr (lstat) on %s failed",
- real_path ? real_path : "<null>");
- goto out;
- }
-
- if (valid & (GF_SET_ATTR_UID | GF_SET_ATTR_GID)){
- op_ret = posix_do_chown (this, real_path, stbuf, valid);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_CHOWN_FAILED, "setattr (chown) on %s "
- "failed", real_path);
- goto out;
- }
- }
-
- if (valid & GF_SET_ATTR_MODE) {
- op_ret = posix_do_chmod (this, real_path, stbuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_CHMOD_FAILED, "setattr (chmod) on %s "
- "failed", real_path);
- goto out;
- }
- }
-
- if (valid & (GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME)) {
- op_ret = posix_do_utimes (this, real_path, stbuf, valid);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_UTIMES_FAILED, "setattr (utimes) on %s "
- "failed", real_path);
- goto out;
- }
- }
-
- if (!valid) {
- op_ret = sys_lchown (real_path, -1, -1);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_LCHOWN_FAILED, "lchown (%s, -1, -1) "
- "failed", real_path);
-
- goto out;
- }
- }
-
- op_ret = posix_pstat (this, loc->gfid, real_path, &statpost);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "setattr (lstat) on %s failed", real_path);
- goto out;
- }
-
- if (xdata)
- xattr_rsp = posix_xattr_fill (this, real_path, loc, NULL, -1,
- xdata, &statpost);
- op_ret = 0;
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (setattr, frame, op_ret, op_errno,
- &statpre, &statpost, xattr_rsp);
- if (xattr_rsp)
- dict_unref (xattr_rsp);
-
- return 0;
-}
-
-int32_t
-posix_do_fchown (xlator_t *this,
- int fd,
- struct iatt *stbuf,
- int32_t valid)
-{
- int ret = -1;
- uid_t uid = -1;
- gid_t gid = -1;
-
- if (valid & GF_SET_ATTR_UID)
- uid = stbuf->ia_uid;
-
- if (valid & GF_SET_ATTR_GID)
- gid = stbuf->ia_gid;
-
- ret = sys_fchown (fd, uid, gid);
-
- return ret;
-}
-
-
-int32_t
-posix_do_fchmod (xlator_t *this,
- int fd, struct iatt *stbuf)
-{
- int32_t ret = -1;
- mode_t mode = 0;
- mode_t mode_bit = 0;
- struct posix_private *priv = NULL;
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
- mode = st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type);
- mode_bit = (mode & priv->create_mask)
- | priv->force_create_mode;
- mode = override_umask (mode, mode_bit);
- ret = sys_fchmod (fd, mode);
-out:
- return ret;
-}
-
-static int
-posix_do_futimes (xlator_t *this, int fd, struct iatt *stbuf, int valid)
-{
- int32_t ret = -1;
- struct timeval tv[2] = { {0,}, {0,} };
- struct stat stat = {0,};
-
- ret = sys_fstat (fd, &stat);
- if (ret != 0) {
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_FILE_OP_FAILED, "%d", fd);
- goto out;
- }
-
- if ((valid & GF_SET_ATTR_ATIME) == GF_SET_ATTR_ATIME) {
- tv[0].tv_sec = stbuf->ia_atime;
- tv[0].tv_usec = stbuf->ia_atime_nsec / 1000;
- } else {
- /* atime is not given, use current values */
- tv[0].tv_sec = ST_ATIM_SEC (&stat);
- tv[0].tv_usec = ST_ATIM_NSEC (&stat) / 1000;
- }
-
- if ((valid & GF_SET_ATTR_MTIME) == GF_SET_ATTR_MTIME) {
- tv[1].tv_sec = stbuf->ia_mtime;
- tv[1].tv_usec = stbuf->ia_mtime_nsec / 1000;
- } else {
- /* mtime is not given, use current values */
- tv[1].tv_sec = ST_MTIM_SEC (&stat);
- tv[1].tv_usec = ST_MTIM_NSEC (&stat) / 1000;
- }
-
- ret = sys_futimes (fd, tv);
- if (ret == -1)
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FUTIMES_FAILED,
- "%d", fd);
-
-out:
- return ret;
-}
-
-int
-posix_fsetattr (call_frame_t *frame, xlator_t *this,
- fd_t *fd, struct iatt *stbuf, int32_t valid, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- struct iatt statpre = {0,};
- struct iatt statpost = {0,};
- struct posix_fd *pfd = NULL;
- dict_t *xattr_rsp = NULL;
- int32_t ret = -1;
-
- DECLARE_OLD_FS_ID_VAR;
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg_debug (this->name, 0, "pfd is NULL from fd=%p", fd);
- goto out;
- }
-
- op_ret = posix_fdstat (this, pfd->fd, &statpre);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
- "fsetattr (fstat) failed on fd=%p", fd);
- goto out;
- }
-
- if (valid & (GF_SET_ATTR_UID | GF_SET_ATTR_GID)) {
- op_ret = posix_do_fchown (this, pfd->fd, stbuf, valid);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_FCHOWN_FAILED, "fsetattr (fchown) failed"
- " on fd=%p", fd);
- goto out;
- }
-
- }
-
- if (valid & GF_SET_ATTR_MODE) {
- op_ret = posix_do_fchmod (this, pfd->fd, stbuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_FCHMOD_FAILED, "fsetattr (fchmod) failed"
- " on fd=%p", fd);
- goto out;
- }
- }
-
- if (valid & (GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME)) {
- op_ret = posix_do_futimes (this, pfd->fd, stbuf, valid);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_FUTIMES_FAILED, "fsetattr (futimes) on "
- "failed fd=%p", fd);
- goto out;
- }
- }
-
- if (!valid) {
- op_ret = sys_fchown (pfd->fd, -1, -1);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_FCHOWN_FAILED,
- "fchown (%d, -1, -1) failed",
- pfd->fd);
-
- goto out;
- }
- }
-
- op_ret = posix_fdstat (this, pfd->fd, &statpost);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
- "fsetattr (fstat) failed on fd=%p", fd);
- goto out;
- }
-
- if (xdata)
- xattr_rsp = posix_xattr_fill (this, NULL, NULL, fd, pfd->fd,
- xdata, &statpost);
- op_ret = 0;
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (fsetattr, frame, op_ret, op_errno,
- &statpre, &statpost, xattr_rsp);
- if (xattr_rsp)
- dict_unref (xattr_rsp);
-
- return 0;
-}
-
-static int32_t
-posix_do_fallocate (call_frame_t *frame, xlator_t *this, fd_t *fd,
- int32_t flags, off_t offset, size_t len,
- struct iatt *statpre, struct iatt *statpost, dict_t *xdata)
-{
- int32_t ret = -1;
- int32_t op_errno = 0;
- struct posix_fd *pfd = NULL;
- gf_boolean_t locked = _gf_false;
- posix_inode_ctx_t *ctx = NULL;
- struct posix_private *priv = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, ret, ret, out);
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg_debug (this->name, 0, "pfd is NULL from fd=%p", fd);
- goto out;
- }
-
- ret = posix_inode_ctx_get_all (fd->inode, this, &ctx);
- if (ret < 0) {
- ret = -ENOMEM;
- goto out;
- }
-
- if (xdata && dict_get (xdata, GLUSTERFS_WRITE_UPDATE_ATOMIC)) {
- locked = _gf_true;
- pthread_mutex_lock (&ctx->write_atomic_lock);
- }
-
- ret = posix_fdstat (this, pfd->fd, statpre);
- if (ret == -1) {
- ret = -errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
- "fallocate (fstat) failed on fd=%p", fd);
- goto out;
- }
-
- ret = sys_fallocate (pfd->fd, flags, offset, len);
- if (ret == -1) {
- ret = -errno;
- gf_msg (this->name, GF_LOG_ERROR, -ret, P_MSG_FALLOCATE_FAILED,
- "fallocate failed on %s offset: %jd, "
- "len:%zu, flags: %d", uuid_utoa (fd->inode->gfid),
- offset, len, flags);
- goto out;
- }
-
- ret = posix_fdstat (this, pfd->fd, statpost);
- if (ret == -1) {
- ret = -errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
- "fallocate (fstat) failed on fd=%p", fd);
- goto out;
- }
-
-out:
- if (locked) {
- pthread_mutex_unlock (&ctx->write_atomic_lock);
- locked = _gf_false;
- }
- SET_TO_OLD_FS_ID ();
- if (ret == ENOSPC)
- ret = -ENOSPC;
-
- return ret;
-}
-
-char*
-_page_aligned_alloc (size_t size, char **aligned_buf)
-{
- char *alloc_buf = NULL;
- char *buf = NULL;
-
- alloc_buf = GF_CALLOC (1, (size + ALIGN_SIZE), gf_posix_mt_char);
- if (!alloc_buf)
- goto out;
- /* page aligned buffer */
- buf = GF_ALIGN_BUF (alloc_buf, ALIGN_SIZE);
- *aligned_buf = buf;
-out:
- return alloc_buf;
-}
-
-static int32_t
-_posix_do_zerofill(int fd, off_t offset, off_t len, int o_direct)
-{
- off_t num_vect = 0;
- off_t num_loop = 1;
- off_t idx = 0;
- int32_t op_ret = -1;
- int32_t vect_size = VECTOR_SIZE;
- off_t remain = 0;
- off_t extra = 0;
- struct iovec *vector = NULL;
- char *iov_base = NULL;
- char *alloc_buf = NULL;
-
- if (len == 0)
- return 0;
- if (len < VECTOR_SIZE)
- vect_size = len;
-
- num_vect = len / (vect_size);
- remain = len % vect_size ;
- if (num_vect > MAX_NO_VECT) {
- extra = num_vect % MAX_NO_VECT;
- num_loop = num_vect / MAX_NO_VECT;
- num_vect = MAX_NO_VECT;
- }
-
- vector = GF_CALLOC (num_vect, sizeof(struct iovec),
- gf_common_mt_iovec);
- if (!vector)
- return -1;
- if (o_direct) {
- alloc_buf = _page_aligned_alloc(vect_size, &iov_base);
- if (!alloc_buf) {
- GF_FREE(vector);
- return -1;
- }
- } else {
- iov_base = GF_CALLOC (vect_size, sizeof(char),
- gf_common_mt_char);
- if (!iov_base) {
- GF_FREE(vector);
- return -1;
- }
- }
-
- for (idx = 0; idx < num_vect; idx++) {
- vector[idx].iov_base = iov_base;
- vector[idx].iov_len = vect_size;
- }
- if (sys_lseek (fd, offset, SEEK_SET) < 0) {
- op_ret = -1;
- goto err;
- }
-
- for (idx = 0; idx < num_loop; idx++) {
- op_ret = sys_writev (fd, vector, num_vect);
- if (op_ret < 0)
- goto err;
- }
- if (extra) {
- op_ret = sys_writev (fd, vector, extra);
- if (op_ret < 0)
- goto err;
- }
- if (remain) {
- vector[0].iov_len = remain;
- op_ret = sys_writev (fd, vector , 1);
- if (op_ret < 0)
- goto err;
- }
-err:
- if (o_direct)
- GF_FREE(alloc_buf);
- else
- GF_FREE(iov_base);
- GF_FREE(vector);
- return op_ret;
-}
-
-static int32_t
-posix_do_zerofill (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
- off_t len, struct iatt *statpre, struct iatt *statpost,
- dict_t *xdata)
-{
- int32_t ret = -1;
- int32_t op_errno = 0;
- int32_t flags = 0;
- struct posix_fd *pfd = NULL;
- gf_boolean_t locked = _gf_false;
- posix_inode_ctx_t *ctx = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg_debug (this->name, 0, "pfd is NULL from fd=%p", fd);
- goto out;
- }
-
- ret = posix_inode_ctx_get_all (fd->inode, this, &ctx);
- if (ret < 0) {
- ret = -ENOMEM;
- goto out;
- }
-
- if (dict_get (xdata, GLUSTERFS_WRITE_UPDATE_ATOMIC)) {
- locked = _gf_true;
- pthread_mutex_lock (&ctx->write_atomic_lock);
- }
-
- ret = posix_fdstat (this, pfd->fd, statpre);
- if (ret == -1) {
- ret = -errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
- "pre-operation fstat failed on fd = %p", fd);
- goto out;
- }
-
- /* See if we can use FALLOC_FL_ZERO_RANGE to perform the zero fill.
- * If it fails, fall back to _posix_do_zerofill() and an optional fsync.
- */
- flags = FALLOC_FL_ZERO_RANGE;
- ret = sys_fallocate (pfd->fd, flags, offset, len);
- if (ret == 0)
- goto fsync;
-
- ret = _posix_do_zerofill (pfd->fd, offset, len, pfd->flags & O_DIRECT);
- if (ret < 0) {
- ret = -errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_ZEROFILL_FAILED,
- "zerofill failed on fd %d length %" PRId64 ,
- pfd->fd, len);
- goto out;
- }
-
-fsync:
- if (pfd->flags & (O_SYNC|O_DSYNC)) {
- ret = sys_fsync (pfd->fd);
- if (ret) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_WRITEV_FAILED, "fsync() in writev on fd"
- "%d failed", pfd->fd);
- ret = -errno;
- goto out;
- }
- }
-
- ret = posix_fdstat (this, pfd->fd, statpost);
- if (ret == -1) {
- ret = -errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
- "post operation fstat failed on fd=%p", fd);
- goto out;
- }
-
-out:
- if (locked) {
- pthread_mutex_unlock (&ctx->write_atomic_lock);
- locked = _gf_false;
- }
- SET_TO_OLD_FS_ID ();
-
- return ret;
-}
-
-static int32_t
-_posix_fallocate(call_frame_t *frame, xlator_t *this, fd_t *fd, int32_t keep_size,
- off_t offset, size_t len, dict_t *xdata)
-{
- int32_t ret;
- int32_t flags = 0;
- struct iatt statpre = {0,};
- struct iatt statpost = {0,};
-
-#ifdef FALLOC_FL_KEEP_SIZE
- if (keep_size)
- flags = FALLOC_FL_KEEP_SIZE;
-#endif /* FALLOC_FL_KEEP_SIZE */
-
- ret = posix_do_fallocate (frame, this, fd, flags, offset, len,
- &statpre, &statpost, xdata);
- if (ret < 0)
- goto err;
-
- STACK_UNWIND_STRICT(fallocate, frame, 0, 0, &statpre, &statpost, NULL);
- return 0;
-
-err:
- STACK_UNWIND_STRICT(fallocate, frame, -1, -ret, NULL, NULL, NULL);
- return 0;
-}
-
-static int32_t
-posix_discard(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
- size_t len, dict_t *xdata)
-{
- int32_t ret;
-#ifndef FALLOC_FL_KEEP_SIZE
- ret = EOPNOTSUPP;
-
-#else /* FALLOC_FL_KEEP_SIZE */
- int32_t flags = FALLOC_FL_KEEP_SIZE|FALLOC_FL_PUNCH_HOLE;
- struct iatt statpre = {0,};
- struct iatt statpost = {0,};
-
- ret = posix_do_fallocate (frame, this, fd, flags, offset, len,
- &statpre, &statpost, xdata);
- if (ret < 0)
- goto err;
-
- STACK_UNWIND_STRICT(discard, frame, 0, 0, &statpre, &statpost, NULL);
- return 0;
-
-err:
-#endif /* FALLOC_FL_KEEP_SIZE */
- STACK_UNWIND_STRICT(discard, frame, -1, -ret, NULL, NULL, NULL);
- return 0;
-}
-
-static int32_t
-posix_zerofill(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
- off_t len, dict_t *xdata)
-{
- int32_t ret = 0;
- struct iatt statpre = {0,};
- struct iatt statpost = {0,};
- struct posix_private *priv = NULL;
- int op_ret = -1;
- int op_errno = -EINVAL;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
-
- priv = this->private;
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
-
- ret = posix_do_zerofill (frame, this, fd, offset, len,
- &statpre, &statpost, xdata);
- if (ret < 0) {
- op_ret = -1;
- op_errno = -ret;
- goto out;
- }
-
- STACK_UNWIND_STRICT(zerofill, frame, 0, 0, &statpre, &statpost, NULL);
- return 0;
-
-out:
- STACK_UNWIND_STRICT(zerofill, frame, op_ret, op_errno, NULL, NULL, NULL);
- return 0;
-}
-
-static int32_t
-posix_ipc (call_frame_t *frame, xlator_t *this, int32_t op, dict_t *xdata)
-{
- /*
- * IPC is for inter-translator communication. If one gets here, it
- * means somebody sent one that nobody else recognized, which is an
- * error much like an uncaught exception.
- */
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_IPC_NOT_HANDLE,
- "GF_LOG_IPC(%d) not handled", op);
- STACK_UNWIND_STRICT (ipc, frame, -1, -EOPNOTSUPP, NULL);
- return 0;
-
-}
-
-#ifdef HAVE_SEEK_HOLE
-static int32_t
-posix_seek (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
- gf_seek_what_t what, dict_t *xdata)
-{
- struct posix_fd *pfd = NULL;
- off_t ret = -1;
- int err = 0;
- int whence = 0;
-
- DECLARE_OLD_FS_ID_VAR;
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- switch (what) {
- case GF_SEEK_DATA:
- whence = SEEK_DATA;
- break;
- case GF_SEEK_HOLE:
- whence = SEEK_HOLE;
- break;
- default:
- err = ENOTSUP;
- gf_msg (this->name, GF_LOG_ERROR, ENOTSUP,
- P_MSG_SEEK_UNKOWN, "don't know what to seek");
- goto out;
- }
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &err);
- if (ret < 0) {
- gf_msg_debug (this->name, 0, "pfd is NULL from fd=%p", fd);
- goto out;
- }
-
- ret = sys_lseek (pfd->fd, offset, whence);
- if (ret == -1) {
- err = errno;
- gf_msg (this->name, GF_LOG_ERROR, err, P_MSG_SEEK_FAILED,
- "seek failed on fd %d length %" PRId64 , pfd->fd,
- offset);
- goto out;
- }
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (seek, frame, (ret == -1 ? -1 : 0), err,
- (ret == -1 ? -1 : ret), xdata);
- return 0;
-}
-#endif
-
-int32_t
-posix_opendir (call_frame_t *frame, xlator_t *this,
- loc_t *loc, fd_t *fd, dict_t *xdata)
-{
- char * real_path = NULL;
- int32_t op_ret = -1;
- int32_t op_errno = EINVAL;
- DIR * dir = NULL;
- struct posix_fd * pfd = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
- VALIDATE_OR_GOTO (fd, out);
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
- MAKE_INODE_HANDLE (real_path, this, loc, NULL);
- if (!real_path) {
- op_errno = ESTALE;
- goto out;
- }
-
- op_ret = -1;
- dir = sys_opendir (real_path);
-
- if (dir == NULL) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_OPENDIR_FAILED,
- "opendir failed on %s", real_path);
- goto out;
- }
-
- op_ret = dirfd (dir);
- if (op_ret < 0) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_DIRFD_FAILED,
- "dirfd() failed on %s", real_path);
- goto out;
- }
-
- pfd = GF_CALLOC (1, sizeof (*pfd), gf_posix_mt_posix_fd);
- if (!pfd) {
- op_errno = errno;
- goto out;
- }
-
- pfd->dir = dir;
- pfd->dir_eof = -1;
- pfd->fd = op_ret;
-
- op_ret = fd_ctx_set (fd, this, (uint64_t)(long)pfd);
- if (op_ret)
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_FD_PATH_SETTING_FAILED, "failed to set the fd"
- "context path=%s fd=%p", real_path, fd);
-
- op_ret = 0;
-
-out:
- if (op_ret == -1) {
- if (dir) {
- (void) sys_closedir (dir);
- dir = NULL;
- }
- if (pfd) {
- GF_FREE (pfd);
- pfd = NULL;
- }
- }
-
- SET_TO_OLD_FS_ID ();
- STACK_UNWIND_STRICT (opendir, frame, op_ret, op_errno, fd, NULL);
- return 0;
-}
-
-int32_t
-posix_releasedir (xlator_t *this,
- fd_t *fd)
-{
- struct posix_fd * pfd = NULL;
- uint64_t tmp_pfd = 0;
- int ret = 0;
-
- struct posix_private *priv = NULL;
-
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- ret = fd_ctx_del (fd, this, &tmp_pfd);
- if (ret < 0) {
- gf_msg_debug (this->name, 0, "pfd from fd=%p is NULL", fd);
- goto out;
- }
-
- pfd = (struct posix_fd *)(long)tmp_pfd;
- if (!pfd->dir) {
- gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_PFD_NULL,
- "pfd->dir is NULL for fd=%p", fd);
- goto out;
- }
-
- priv = this->private;
-
- pthread_mutex_lock (&priv->janitor_lock);
- {
- INIT_LIST_HEAD (&pfd->list);
- list_add_tail (&pfd->list, &priv->janitor_fds);
- pthread_cond_signal (&priv->janitor_cond);
- }
- pthread_mutex_unlock (&priv->janitor_lock);
-
-out:
- return 0;
-}
-
-
-int32_t
-posix_readlink (call_frame_t *frame, xlator_t *this,
- loc_t *loc, size_t size, dict_t *xdata)
-{
- char * dest = NULL;
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char * real_path = NULL;
- struct iatt stbuf = {0,};
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- dest = alloca (size + 1);
-
- MAKE_INODE_HANDLE (real_path, this, loc, &stbuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "lstat on %s failed",
- loc->path ? loc->path : "<null>");
- goto out;
- }
-
- op_ret = sys_readlink (real_path, dest, size);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_READYLINK_FAILED,
- "readlink on %s failed", real_path);
- goto out;
- }
-
- dest[op_ret] = 0;
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (readlink, frame, op_ret, op_errno, dest, &stbuf, NULL);
-
- return 0;
-}
-
-
-int
-posix_mknod (call_frame_t *frame, xlator_t *this,
- loc_t *loc, mode_t mode, dev_t dev, mode_t umask, dict_t *xdata)
-{
- int tmp_fd = 0;
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char *real_path = 0;
- char *par_path = 0;
- struct iatt stbuf = { 0, };
- struct posix_private *priv = NULL;
- gid_t gid = 0;
- struct iatt preparent = {0,};
- struct iatt postparent = {0,};
- void * uuid_req = NULL;
- int32_t nlink_samepgfid = 0;
- char *pgfid_xattr_key = NULL;
- gf_boolean_t entry_created = _gf_false, gfid_set = _gf_false;
- gf_boolean_t linked = _gf_false;
- gf_loglevel_t level = GF_LOG_NONE;
- mode_t mode_bit = 0;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
- GFID_NULL_CHECK_AND_GOTO (frame, this, loc, xdata, op_ret, op_errno,
- out);
- MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, NULL);
-
- mode_bit = (priv->create_mask & mode) | priv->force_create_mode;
- mode = override_umask (mode, mode_bit);
-
- gid = frame->root->gid;
-
- SET_FS_ID (frame->root->uid, gid);
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
- if (!real_path || !par_path) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
-
-
- op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "pre-operation lstat on parent of %s failed",
- real_path);
- goto out;
- }
-
- if (preparent.ia_prot.sgid) {
- gid = preparent.ia_gid;
- }
-
- /* Check if the 'gfid' already exists, because this mknod may be an
- internal call from distribute for creating 'linkfile', and that
- linkfile may be for a hardlinked file */
- if (dict_get (xdata, GLUSTERFS_INTERNAL_FOP_KEY)) {
- dict_del (xdata, GLUSTERFS_INTERNAL_FOP_KEY);
- op_ret = dict_get_ptr (xdata, "gfid-req", &uuid_req);
- if (op_ret) {
- gf_msg_debug (this->name, 0, "failed to get the gfid from "
- "dict for %s", loc->path);
- goto real_op;
- }
- op_ret = posix_create_link_if_gfid_exists (this, uuid_req,
- real_path,
- loc->inode->table);
- if (!op_ret) {
- linked = _gf_true;
- goto post_op;
- }
- }
-
-real_op:
-#ifdef __NetBSD__
- if (S_ISFIFO(mode))
- op_ret = mkfifo (real_path, mode);
- else
-#endif /* __NetBSD__ */
- op_ret = sys_mknod (real_path, mode, dev);
-
- if (op_ret == -1) {
- op_errno = errno;
- if ((op_errno == EINVAL) && S_ISREG (mode)) {
- /* Over Darwin, mknod with (S_IFREG|mode)
- doesn't work */
- tmp_fd = sys_creat (real_path, mode);
- if (tmp_fd == -1) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_CREATE_FAILED, "create failed on"
- "%s", real_path);
- goto out;
- }
- sys_close (tmp_fd);
- } else {
- if (op_errno == EEXIST)
- level = GF_LOG_DEBUG;
- else
- level = GF_LOG_ERROR;
- gf_msg (this->name, level, errno, P_MSG_MKNOD_FAILED,
- "mknod on %s failed", real_path);
- goto out;
- }
- }
-
- entry_created = _gf_true;
-
-#ifndef HAVE_SET_FSID
- op_ret = sys_lchown (real_path, frame->root->uid, gid);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LCHOWN_FAILED,
- "lchown on %s failed", real_path);
- goto out;
- }
-#endif
-
-post_op:
- op_ret = posix_acl_xattr_set (this, real_path, xdata);
- if (op_ret) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_ACL_FAILED,
- "setting ACLs on %s failed", real_path);
- }
-
- if (priv->update_pgfid_nlinks) {
- MAKE_PGFID_XATTR_KEY (pgfid_xattr_key, PGFID_XATTR_KEY_PREFIX,
- loc->pargfid);
- nlink_samepgfid = 1;
-
- SET_PGFID_XATTR (real_path, pgfid_xattr_key, nlink_samepgfid,
- XATTR_CREATE, op_ret, this, ignore);
- }
-
- if (priv->gfid2path) {
- posix_set_gfid2path_xattr (this, real_path, loc->pargfid,
- loc->name);
- }
-
-ignore:
- op_ret = posix_entry_create_xattr_set (this, real_path, xdata);
- if (op_ret) {
- if (errno != EEXIST)
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_XATTR_FAILED,
- "setting xattrs on %s failed", real_path);
- else
- gf_msg_debug (this->name, 0,
- "setting xattrs on %s failed", real_path);
- }
-
- if (!linked) {
- op_ret = posix_gfid_set (this, real_path, loc, xdata);
- if (op_ret) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_GFID_FAILED,
- "setting gfid on %s failed", real_path);
- } else {
- gfid_set = _gf_true;
- }
- }
-
- op_ret = posix_pstat (this, NULL, real_path, &stbuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_MKNOD_FAILED,
- "mknod on %s failed", real_path);
- goto out;
- }
-
- op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "post-operation lstat on parent %s failed",
- par_path);
- goto out;
- }
-
- op_ret = 0;
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (mknod, frame, op_ret, op_errno,
- (loc)?loc->inode:NULL, &stbuf, &preparent,
- &postparent, NULL);
-
- if (op_ret < 0) {
- if (entry_created) {
- if (S_ISREG (mode))
- sys_unlink (real_path);
- else
- sys_rmdir (real_path);
- }
-
- if (gfid_set)
- posix_gfid_unset (this, xdata);
- }
-
- return 0;
-}
-
-int
-posix_mkdir (call_frame_t *frame, xlator_t *this,
- loc_t *loc, mode_t mode, mode_t umask, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char *real_path = NULL, *gfid_path = NULL;
- char *par_path = NULL, *xattr_name = NULL;
- struct iatt stbuf = {0, };
- struct posix_private *priv = NULL;
- gid_t gid = 0;
- struct iatt preparent = {0,};
- struct iatt postparent = {0,};
- gf_boolean_t entry_created = _gf_false, gfid_set = _gf_false;
- void *uuid_req = NULL;
- ssize_t size = 0;
- dict_t *xdata_rsp = NULL;
- void *disk_xattr = NULL;
- data_t *arg_data = NULL;
- char pgfid[GF_UUID_BUF_SIZE] = {0};
- char value_buf[4096] = {0,};
- gf_boolean_t have_val = _gf_false;
- mode_t mode_bit = 0;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- /* The Hidden directory should be for housekeeping purpose and it
- should not get created from a user request */
- if (__is_root_gfid (loc->pargfid) &&
- (strcmp (loc->name, GF_HIDDEN_PATH) == 0)) {
- gf_msg (this->name, GF_LOG_WARNING, EPERM,
- P_MSG_MKDIR_NOT_PERMITTED, "mkdir issued on %s, which"
- "is not permitted", GF_HIDDEN_PATH);
- op_errno = EPERM;
- op_ret = -1;
- goto out;
- }
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
- GFID_NULL_CHECK_AND_GOTO (frame, this, loc, xdata, op_ret, op_errno,
- out);
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
-
- MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, NULL);
- if (!real_path || !par_path) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
-
- if (loc->parent)
- gf_uuid_unparse (loc->parent->gfid, pgfid);
- else
- gf_uuid_unparse (loc->pargfid, pgfid);
-
- gid = frame->root->gid;
-
- op_ret = posix_pstat (this, NULL, real_path, &stbuf);
-
- SET_FS_ID (frame->root->uid, gid);
-
- mode_bit = (priv->create_directory_mask & mode)
- | priv->force_directory_mode;
- mode = override_umask (mode, mode_bit);
-
- if (xdata) {
- op_ret = dict_get_ptr (xdata, "gfid-req", &uuid_req);
- if (!op_ret && !gf_uuid_compare (stbuf.ia_gfid, uuid_req)) {
- op_ret = -1;
- op_errno = EEXIST;
- goto out;
- }
- }
-
- if (uuid_req && !gf_uuid_is_null (uuid_req)) {
- op_ret = posix_istat (this, uuid_req, NULL, &stbuf);
- if ((op_ret == 0) && IA_ISDIR (stbuf.ia_type)) {
- size = posix_handle_path (this, uuid_req, NULL, NULL,
- 0);
- if (size > 0)
- gfid_path = alloca (size);
-
- if (gfid_path)
- posix_handle_path (this, uuid_req, NULL,
- gfid_path, size);
-
- if (frame->root->pid != GF_CLIENT_PID_SELF_HEALD) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_DIR_OF_SAME_ID, "mkdir (%s): "
- "gfid (%s) is already associated with "
- "directory (%s). Hence, both "
- "directories will share same gfid and "
- "this can lead to inconsistencies.",
- loc->path, uuid_utoa (uuid_req),
- gfid_path ? gfid_path : "<NULL>");
-
- gf_event (EVENT_POSIX_SAME_GFID, "gfid=%s;"
- "path=%s;newpath=%s;brick=%s:%s",
- uuid_utoa (uuid_req),
- gfid_path ? gfid_path : "<NULL>",
- loc->path, priv->hostname,
- priv->base_path);
- }
- if (!posix_symlinks_match (this, loc, uuid_req))
- /* For afr selfheal of dir renames, we need to
- * remove the old symlink in order for
- * posix_gfid_set to set the symlink to the
- * new dir.*/
- posix_handle_unset (this, stbuf.ia_gfid, NULL);
- }
- } else if (!uuid_req && frame->root->pid != GF_SERVER_PID_TRASH) {
- op_ret = -1;
- op_errno = EPERM;
- gf_msg_callingfn (this->name, GF_LOG_WARNING, op_errno,
- P_MSG_NULL_GFID, "mkdir (%s): is issued without "
- "gfid-req %p", loc->path, xdata);
- goto out;
- }
-
- op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "pre-operation lstat on parent %s failed",
- par_path);
- goto out;
- }
-
- if (preparent.ia_prot.sgid) {
- gid = preparent.ia_gid;
- mode |= S_ISGID;
- }
-
- op_ret = dict_get_str (xdata, GF_PREOP_PARENT_KEY, &xattr_name);
- if (xattr_name != NULL) {
- arg_data = dict_get (xdata, xattr_name);
- if (arg_data) {
- size = sys_lgetxattr (par_path, xattr_name, value_buf,
- sizeof(value_buf) - 1);
- if (size >= 0) {
- have_val = _gf_true;
- } else {
- if (errno == ERANGE) {
- gf_msg (this->name, GF_LOG_INFO, errno,
- P_MSG_PREOP_CHECK_FAILED,
- "mkdir (%s/%s): getxattr on key "
- "(%s) path (%s) failed due to "
- " buffer overflow", pgfid,
- loc->name, xattr_name,
- par_path);
- size = sys_lgetxattr (par_path,
- xattr_name, NULL,
- 0);
- }
- if (size < 0) {
- op_ret = -1;
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_PREOP_CHECK_FAILED,
- "mkdir (%s/%s): getxattr on key (%s)"
- " path (%s) failed ", pgfid,
- loc->name, xattr_name,
- par_path);
- goto out;
- }
- }
- disk_xattr = alloca (size);
- if (disk_xattr == NULL) {
- op_ret = -1;
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_PREOP_CHECK_FAILED,
- "mkdir (%s/%s): alloca failed during"
- " preop of mkdir (%s)", pgfid,
- loc->name, real_path);
- goto out;
- }
- if (have_val) {
- memcpy (disk_xattr, value_buf, size);
- } else {
- size = sys_lgetxattr (par_path, xattr_name,
- disk_xattr, size);
- if (size < 0) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_PREOP_CHECK_FAILED,
- "mkdir (%s/%s): getxattr on "
- " key (%s) path (%s) failed "
- "(%s)", pgfid, loc->name,
- xattr_name, par_path,
- strerror (errno));
- goto out;
- }
- }
- if ((arg_data->len != size)
- || (memcmp (arg_data->data, disk_xattr, size))) {
- gf_msg (this->name, GF_LOG_INFO, EIO,
- P_MSG_PREOP_CHECK_FAILED,
- "mkdir (%s/%s): failing preop of "
- "mkdir (%s) as on-disk"
- " xattr value differs from argument "
- "value for key %s", pgfid, loc->name,
- real_path, xattr_name);
- op_ret = -1;
- op_errno = EIO;
-
- xdata_rsp = dict_new ();
- if (xdata_rsp == NULL) {
- gf_msg (this->name, GF_LOG_ERROR,
- ENOMEM,
- P_MSG_PREOP_CHECK_FAILED,
- "mkdir (%s/%s): "
- "dict allocation failed", pgfid,
- loc->name);
- op_errno = ENOMEM;
- goto out;
- }
-
- op_errno = dict_set_int8 (xdata_rsp,
- GF_PREOP_CHECK_FAILED, 1);
- goto out;
- }
-
- dict_del (xdata, xattr_name);
- }
-
- dict_del (xdata, GF_PREOP_PARENT_KEY);
- }
-
- op_ret = sys_mkdir (real_path, mode);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_MKDIR_FAILED,
- "mkdir of %s failed", real_path);
- goto out;
- }
-
- entry_created = _gf_true;
-
-#ifndef HAVE_SET_FSID
- op_ret = sys_chown (real_path, frame->root->uid, gid);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_CHOWN_FAILED,
- "chown on %s failed", real_path);
- goto out;
- }
-#endif
- op_ret = posix_acl_xattr_set (this, real_path, xdata);
- if (op_ret) {
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_ACL_FAILED,
- "setting ACLs on %s failed ", real_path);
- }
-
- op_ret = posix_entry_create_xattr_set (this, real_path, xdata);
- if (op_ret) {
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_XATTR_FAILED,
- "setting xattrs on %s failed", real_path);
- }
-
- op_ret = posix_gfid_set (this, real_path, loc, xdata);
- if (op_ret) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_GFID_FAILED,
- "setting gfid on %s failed", real_path);
- } else {
- gfid_set = _gf_true;
- }
-
- op_ret = posix_pstat (this, NULL, real_path, &stbuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "lstat on %s failed", real_path);
- goto out;
- }
-
- op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "post-operation lstat on parent of %s failed",
- real_path);
- goto out;
- }
-
- op_ret = 0;
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (mkdir, frame, op_ret, op_errno,
- (loc)?loc->inode:NULL, &stbuf, &preparent,
- &postparent, xdata_rsp);
-
- if (op_ret < 0) {
- if (entry_created)
- sys_rmdir (real_path);
-
- if (gfid_set)
- posix_gfid_unset (this, xdata);
- }
-
- if (xdata_rsp)
- dict_unref (xdata_rsp);
-
- return 0;
-}
-
-int
-posix_add_unlink_to_ctx (inode_t *inode, xlator_t *this, char *unlink_path)
-{
- uint64_t ctx = GF_UNLINK_FALSE;
- int ret = 0;
-
- if (!unlink_path) {
- gf_msg (this->name, GF_LOG_ERROR, ENOMEM,
- P_MSG_UNLINK_FAILED,
- "Creation of unlink entry failed for gfid: %s",
- unlink_path);
- ret = -1;
- goto out;
- }
-
- ctx = GF_UNLINK_TRUE;
- ret = posix_inode_ctx_set_unlink_flag (inode, this, ctx);
- if (ret < 0) {
- goto out;
- }
-
-out:
- return ret;
-}
-
-int32_t
-posix_move_gfid_to_unlink (xlator_t *this, uuid_t gfid, loc_t *loc)
-{
- char *unlink_path = NULL;
- char *gfid_path = NULL;
- int ret = 0;
- struct posix_private *priv_posix = NULL;
-
- priv_posix = (struct posix_private *) this->private;
-
- MAKE_HANDLE_GFID_PATH (gfid_path, this, gfid, NULL);
-
- POSIX_GET_FILE_UNLINK_PATH (priv_posix->base_path,
- loc->inode->gfid, unlink_path);
- if (!unlink_path) {
- ret = -1;
- goto out;
- }
- gf_msg_debug (this->name, 0,
- "Moving gfid: %s to unlink_path : %s",
- gfid_path, unlink_path);
- ret = sys_rename (gfid_path, unlink_path);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_UNLINK_FAILED,
- "Creation of unlink entry failed for gfid: %s",
- unlink_path);
- goto out;
- }
- ret = posix_add_unlink_to_ctx (loc->inode, this, unlink_path);
- if (ret < 0)
- goto out;
-
-out:
- return ret;
-}
-
-int32_t
-posix_unlink_gfid_handle_and_entry (xlator_t *this, const char *real_path,
- struct iatt *stbuf, int32_t *op_errno,
- loc_t *loc, gf_boolean_t get_link_count,
- dict_t *rsp_dict)
-{
- int32_t ret = 0;
- struct iatt prebuf = {0,};
- gf_boolean_t locked = _gf_false;
-
- /* Unlink the gfid_handle_first */
- if (stbuf && stbuf->ia_nlink == 1) {
-
- LOCK (&loc->inode->lock);
-
- if (loc->inode->fd_count == 0) {
- UNLOCK (&loc->inode->lock);
- ret = posix_handle_unset (this, stbuf->ia_gfid, NULL);
- } else {
- UNLOCK (&loc->inode->lock);
- ret = posix_move_gfid_to_unlink (this, stbuf->ia_gfid,
- loc);
- }
- if (ret) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_UNLINK_FAILED, "unlink of gfid handle "
- "failed for path:%s with gfid %s",
- real_path, uuid_utoa (stbuf->ia_gfid));
- }
- }
-
- if (get_link_count) {
- LOCK (&loc->inode->lock);
- locked = _gf_true;
- ret = posix_pstat (this, loc->gfid, real_path, &prebuf);
- if (ret) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_LSTAT_FAILED, "lstat on %s failed",
- real_path);
- goto err;
- }
- }
-
- /* Unlink the actual file */
- ret = sys_unlink (real_path);
- if (ret == -1) {
- if (op_errno)
- *op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_UNLINK_FAILED,
- "unlink of %s failed", real_path);
- goto err;
- }
-
- if (locked) {
- UNLOCK (&loc->inode->lock);
- locked = _gf_false;
- }
-
- ret = dict_set_uint32 (rsp_dict, GET_LINK_COUNT, prebuf.ia_nlink);
- if (ret)
- gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_SET_XDATA_FAIL,
- "failed to set "GET_LINK_COUNT" for %s", real_path);
-
- return 0;
-
-err:
- if (locked) {
- UNLOCK (&loc->inode->lock);
- locked = _gf_false;
- }
- return -1;
-}
-
-static
-int32_t posix_set_iatt_in_dict (dict_t *dict, struct iatt *in_stbuf)
-{
- int ret = -1;
- struct iatt *stbuf = NULL;
- int32_t len = sizeof(struct iatt);
-
- if (!dict || !in_stbuf)
- return ret;
-
- stbuf = GF_CALLOC (1, len, gf_common_mt_char);
- if (!stbuf)
- return ret;
-
- memcpy (stbuf, in_stbuf, len);
-
- ret = dict_set_bin (dict, DHT_IATT_IN_XDATA_KEY, stbuf, len);
- if (ret)
- GF_FREE (stbuf);
-
- return ret;
-}
-
-gf_boolean_t
-posix_skip_non_linkto_unlink (dict_t *xdata, loc_t *loc, char *key,
- const char *linkto_xattr, struct iatt *stbuf,
- const char *real_path)
-{
- gf_boolean_t skip_unlink = _gf_false;
- gf_boolean_t is_dht_linkto_file = _gf_false;
- int unlink_if_linkto = 0;
- ssize_t xattr_size = -1;
- int op_ret = -1;
-
- op_ret = dict_get_int32 (xdata, key,
- &unlink_if_linkto);
-
- if (!op_ret && unlink_if_linkto) {
-
- is_dht_linkto_file = IS_DHT_LINKFILE_MODE (stbuf);
- if (!is_dht_linkto_file)
- return _gf_true;
-
- LOCK (&loc->inode->lock);
-
- xattr_size = sys_lgetxattr (real_path, linkto_xattr, NULL, 0);
-
- if (xattr_size <= 0)
- skip_unlink = _gf_true;
-
- UNLOCK (&loc->inode->lock);
-
- gf_msg ("posix", GF_LOG_INFO, 0, P_MSG_XATTR_STATUS,
- "linkto_xattr status: %"PRIu32" for %s", skip_unlink,
- real_path);
- }
- return skip_unlink;
-
-}
-
-int32_t
-posix_unlink (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int xflag, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char *real_path = NULL;
- char *par_path = NULL;
- int32_t fd = -1;
- struct iatt stbuf = {0,};
- struct iatt postbuf = {0,};
- struct posix_private *priv = NULL;
- struct iatt preparent = {0,};
- struct iatt postparent = {0,};
- char *pgfid_xattr_key = NULL;
- int32_t nlink_samepgfid = 0;
- int32_t check_open_fd = 0;
- int32_t skip_unlink = 0;
- int32_t fdstat_requested = 0;
- dict_t *unwind_dict = NULL;
- void *uuid = NULL;
- char uuid_str[GF_UUID_BUF_SIZE] = {0};
- char gfid_str[GF_UUID_BUF_SIZE] = {0};
- gf_boolean_t get_link_count = _gf_false;
- posix_inode_ctx_t *ctx = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
- MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &stbuf);
- if (!real_path || !par_path) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
-
- op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "pre-operation lstat on parent %s failed",
- par_path);
- goto out;
- }
-
- priv = this->private;
-
- op_ret = dict_get_ptr (xdata, TIER_LINKFILE_GFID, &uuid);
-
- if (!op_ret && gf_uuid_compare (uuid, stbuf.ia_gfid)) {
- op_errno = ENOENT;
- op_ret = -1;
- gf_uuid_unparse (uuid, uuid_str);
- gf_uuid_unparse (stbuf.ia_gfid, gfid_str);
- gf_msg_debug (this->name, op_errno, "Mismatch in gfid for path "
- "%s. Aborting the unlink. loc->gfid = %s, "
- "stbuf->ia_gfid = %s", real_path,
- uuid_str, gfid_str);
- goto out;
- }
-
- op_ret = dict_get_int32 (xdata, DHT_SKIP_OPEN_FD_UNLINK,
- &check_open_fd);
-
- if (!op_ret && check_open_fd) {
-
- LOCK (&loc->inode->lock);
-
- if (loc->inode->fd_count) {
- skip_unlink = 1;
- }
-
- UNLOCK (&loc->inode->lock);
-
- gf_msg (this->name, GF_LOG_INFO, 0, P_MSG_KEY_STATUS_INFO,
- "open-fd-key-status: %"PRIu32" for %s", skip_unlink,
- real_path);
-
- if (skip_unlink) {
- op_ret = -1;
- op_errno = EBUSY;
- goto out;
- }
- }
- /*
- * If either of the function return true, skip_unlink.
- * If first first function itself return true,
- * we don't need to call second function, skip unlink.
- */
- skip_unlink = posix_skip_non_linkto_unlink (xdata, loc,
- DHT_SKIP_NON_LINKTO_UNLINK,
- DHT_LINKTO, &stbuf,
- real_path);
- skip_unlink = skip_unlink || posix_skip_non_linkto_unlink (xdata, loc,
- TIER_SKIP_NON_LINKTO_UNLINK,
- TIER_LINKTO, &stbuf,
- real_path);
- if (skip_unlink) {
- op_ret = -1;
- op_errno = EBUSY;
- goto out;
- }
-
- if (IA_ISREG (loc->inode->ia_type) &&
- xdata && dict_get (xdata, DHT_IATT_IN_XDATA_KEY)) {
- fdstat_requested = 1;
- }
-
- if (fdstat_requested ||
- (priv->background_unlink && IA_ISREG (loc->inode->ia_type))) {
- fd = sys_open (real_path, O_RDONLY, 0);
- if (fd == -1) {
- op_ret = -1;
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_OPEN_FAILED,
- "open of %s failed", real_path);
- goto out;
- }
- }
-
- if (priv->update_pgfid_nlinks && (stbuf.ia_nlink > 1)) {
- MAKE_PGFID_XATTR_KEY (pgfid_xattr_key, PGFID_XATTR_KEY_PREFIX,
- loc->pargfid);
- op_ret = posix_inode_ctx_get_all (loc->inode, this, &ctx);
- if (op_ret < 0) {
- op_errno = ENOMEM;
- goto out;
- }
- pthread_mutex_lock (&ctx->pgfid_lock);
- {
- UNLINK_MODIFY_PGFID_XATTR (real_path, pgfid_xattr_key,
- nlink_samepgfid, 0, op_ret,
- this, unlock);
- }
- unlock:
- pthread_mutex_unlock (&ctx->pgfid_lock);
-
- if (op_ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_XATTR_FAILED, "modification of "
- "parent gfid xattr failed (path:%s gfid:%s)",
- real_path, uuid_utoa (loc->inode->gfid));
- if (op_errno != ENOATTR)
- /* Allow unlink if pgfid xattr is not set. */
- goto out;
- }
- }
-
- if (priv->gfid2path && (stbuf.ia_nlink > 1)) {
- op_ret = posix_remove_gfid2path_xattr (this, real_path,
- loc->pargfid,
- loc->name);
- if (op_ret < 0) {
- /* Allow unlink if pgfid xattr is not set. */
- if (errno != ENOATTR)
- goto out;
- }
- }
-
- unwind_dict = dict_new ();
- if (!unwind_dict) {
- op_errno = -ENOMEM;
- op_ret = -1;
- goto out;
- }
-
- if (xdata && dict_get (xdata, GET_LINK_COUNT))
- get_link_count = _gf_true;
- op_ret = posix_unlink_gfid_handle_and_entry (this, real_path, &stbuf,
- &op_errno, loc,
- get_link_count,
- unwind_dict);
- if (op_ret == -1) {
- goto out;
- }
-
- if (fdstat_requested) {
- op_ret = posix_fdstat (this, fd, &postbuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_FSTAT_FAILED, "post operation "
- "fstat failed on fd=%d", fd);
- goto out;
- }
- op_ret = posix_set_iatt_in_dict (unwind_dict, &postbuf);
- }
-
- op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "post-operation lstat on parent %s failed",
- par_path);
- goto out;
- }
-
- unwind_dict = posix_dict_set_nlink (xdata, unwind_dict, stbuf.ia_nlink);
- op_ret = 0;
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (unlink, frame, op_ret, op_errno,
- &preparent, &postparent, unwind_dict);
-
- if (fd != -1) {
- sys_close (fd);
- }
-
- /* unref unwind_dict*/
- if (unwind_dict) {
- dict_unref (unwind_dict);
- }
-
- return 0;
-}
-
-
-int
-posix_rmdir (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int flags, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char *real_path = NULL;
- char *par_path = NULL;
- char *gfid_str = NULL;
- struct iatt preparent = {0,};
- struct iatt postparent = {0,};
- struct iatt stbuf = {0,};
- struct posix_private *priv = NULL;
- char tmp_path[PATH_MAX] = {0,};
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- /* The Hidden directory should be for housekeeping purpose and it
- should not get deleted from inside process */
- if (__is_root_gfid (loc->pargfid) &&
- (strcmp (loc->name, GF_HIDDEN_PATH) == 0)) {
- gf_msg (this->name, GF_LOG_WARNING, EPERM,
- P_MSG_RMDIR_NOT_PERMITTED, "rmdir issued on %s, which"
- "is not permitted", GF_HIDDEN_PATH);
- op_errno = EPERM;
- op_ret = -1;
- goto out;
- }
-
- priv = this->private;
-
- MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &stbuf);
- if (!real_path || !par_path) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
-
- op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "pre-operation lstat on parent %s failed",
- par_path);
- goto out;
- }
-
- if (flags) {
- gfid_str = uuid_utoa (stbuf.ia_gfid);
-
- op_ret = sys_mkdir (priv->trash_path, 0755);
- if (errno != EEXIST && op_ret == -1) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_MKDIR_FAILED,
- "mkdir of %s failed", priv->trash_path);
- } else {
- (void) snprintf (tmp_path, sizeof(tmp_path), "%s/%s",
- priv->trash_path, gfid_str);
- op_ret = sys_rename (real_path, tmp_path);
- pthread_cond_signal (&priv->janitor_cond);
- }
- } else {
- op_ret = sys_rmdir (real_path);
- }
- op_errno = errno;
-
- if (op_ret == 0) {
- if (posix_symlinks_match (this, loc, stbuf.ia_gfid))
- posix_handle_unset (this, stbuf.ia_gfid, NULL);
- }
-
- if (op_errno == EEXIST)
- /* Solaris sets errno = EEXIST instead of ENOTEMPTY */
- op_errno = ENOTEMPTY;
-
- /* No need to log a common error as ENOTEMPTY */
- if (op_ret == -1 && op_errno != ENOTEMPTY) {
- gf_msg (this->name, GF_LOG_ERROR, op_errno, P_MSG_RMDIR_FAILED,
- "rmdir of %s failed", real_path);
- }
-
- if (op_ret == -1) {
- if (op_errno == ENOTEMPTY) {
- gf_msg_debug (this->name, 0, "%s on %s failed", (flags)
- ? "rename" : "rmdir", real_path);
- } else {
- gf_msg (this->name, GF_LOG_ERROR, op_errno,
- P_MSG_DIR_OPERATION_FAILED, "%s on %s failed",
- (flags) ? "rename" : "rmdir", real_path);
- }
- goto out;
- }
-
- op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "post-operation lstat on parent of %s failed",
- par_path);
- goto out;
- }
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (rmdir, frame, op_ret, op_errno,
- &preparent, &postparent, NULL);
-
- return 0;
-}
-
-
-int
-posix_symlink (call_frame_t *frame, xlator_t *this,
- const char *linkname, loc_t *loc, mode_t umask, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char * real_path = 0;
- char * par_path = 0;
- struct iatt stbuf = { 0, };
- struct posix_private *priv = NULL;
- gid_t gid = 0;
- struct iatt preparent = {0,};
- struct iatt postparent = {0,};
- char *pgfid_xattr_key = NULL;
- int32_t nlink_samepgfid = 0;
- gf_boolean_t entry_created = _gf_false, gfid_set = _gf_false;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (linkname, out);
- VALIDATE_OR_GOTO (loc, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
- GFID_NULL_CHECK_AND_GOTO (frame, this, loc, xdata, op_ret, op_errno,
- out);
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
-
- MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &stbuf);
-
- gid = frame->root->gid;
- if (!real_path || !par_path) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
-
- SET_FS_ID (frame->root->uid, gid);
-
- op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "pre-operation lstat on parent %s failed",
- par_path);
- goto out;
- }
-
- if (preparent.ia_prot.sgid) {
- gid = preparent.ia_gid;
- }
-
- op_ret = sys_symlink (linkname, real_path);
-
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_SYMLINK_FAILED,
- "symlink of %s --> %s failed",
- real_path, linkname);
- goto out;
- }
-
- entry_created = _gf_true;
-
-#ifndef HAVE_SET_FSID
- op_ret = sys_lchown (real_path, frame->root->uid, gid);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LCHOWN_FAILED,
- "lchown failed on %s", real_path);
- goto out;
- }
-#endif
- op_ret = posix_acl_xattr_set (this, real_path, xdata);
- if (op_ret) {
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_ACL_FAILED,
- "setting ACLs on %s failed", real_path);
- }
-
- if (priv->update_pgfid_nlinks) {
- MAKE_PGFID_XATTR_KEY (pgfid_xattr_key, PGFID_XATTR_KEY_PREFIX,
- loc->pargfid);
- nlink_samepgfid = 1;
- SET_PGFID_XATTR (real_path, pgfid_xattr_key, nlink_samepgfid,
- XATTR_CREATE, op_ret, this, ignore);
- }
-
- if (priv->gfid2path) {
- posix_set_gfid2path_xattr (this, real_path, loc->pargfid,
- loc->name);
- }
-
-ignore:
- op_ret = posix_entry_create_xattr_set (this, real_path, xdata);
- if (op_ret) {
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_XATTR_FAILED,
- "setting xattrs on %s failed ", real_path);
- }
-
- op_ret = posix_gfid_set (this, real_path, loc, xdata);
- if (op_ret) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_GFID_FAILED,
- "setting gfid on %s failed", real_path);
- } else {
- gfid_set = _gf_true;
- }
-
- op_ret = posix_pstat (this, NULL, real_path, &stbuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "lstat failed on %s", real_path);
- goto out;
- }
-
- op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "post-operation lstat on parent %s failed",
- par_path);
- goto out;
- }
-
- op_ret = 0;
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (symlink, frame, op_ret, op_errno,
- (loc)?loc->inode:NULL, &stbuf, &preparent,
- &postparent, NULL);
-
- if (op_ret < 0) {
- if (entry_created)
- sys_unlink (real_path);
-
- if (gfid_set)
- posix_gfid_unset (this, xdata);
- }
-
- return 0;
-}
-
-
-int
-posix_rename (call_frame_t *frame, xlator_t *this,
- loc_t *oldloc, loc_t *newloc, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char *real_oldpath = NULL;
- char *real_newpath = NULL;
- char *par_oldpath = NULL;
- char *par_newpath = NULL;
- struct iatt stbuf = {0, };
- struct posix_private *priv = NULL;
- char was_present = 1;
- struct iatt preoldparent = {0, };
- struct iatt postoldparent = {0, };
- struct iatt prenewparent = {0, };
- struct iatt postnewparent = {0, };
- char olddirid[64];
- char newdirid[64];
- uuid_t victim = {0};
- int was_dir = 0;
- int nlink = 0;
- char *pgfid_xattr_key = NULL;
- int32_t nlink_samepgfid = 0;
- char *gfid_path = NULL;
- dict_t *unwind_dict = NULL;
- gf_boolean_t locked = _gf_false;
- gf_boolean_t get_link_count = _gf_false;
- posix_inode_ctx_t *ctx_old = NULL;
- posix_inode_ctx_t *ctx_new = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (oldloc, out);
- VALIDATE_OR_GOTO (newloc, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
- MAKE_ENTRY_HANDLE (real_oldpath, par_oldpath, this, oldloc, NULL);
- if (!real_oldpath || !par_oldpath) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
-
- MAKE_ENTRY_HANDLE (real_newpath, par_newpath, this, newloc, &stbuf);
- if (!real_newpath || !par_newpath) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
-
- unwind_dict = dict_new ();
- if (!unwind_dict) {
- op_ret = -1;
- op_errno = ENOMEM;
- goto out;
- }
-
- op_ret = posix_pstat (this, oldloc->pargfid, par_oldpath, &preoldparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "pre-operation lstat on parent %s failed",
- par_oldpath);
- goto out;
- }
-
- op_ret = posix_pstat (this, newloc->pargfid, par_newpath, &prenewparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "pre-operation lstat on parent of %s failed",
- par_newpath);
- goto out;
- }
-
- op_ret = posix_pstat (this, NULL, real_newpath, &stbuf);
- if ((op_ret == -1) && (errno == ENOENT)){
- was_present = 0;
- } else {
- gf_uuid_copy (victim, stbuf.ia_gfid);
- if (IA_ISDIR (stbuf.ia_type))
- was_dir = 1;
- nlink = stbuf.ia_nlink;
- }
-
- if (was_present && IA_ISDIR(stbuf.ia_type) && !newloc->inode) {
- gf_msg (this->name, GF_LOG_WARNING, EEXIST, P_MSG_DIR_FOUND,
- "found directory at %s while expecting ENOENT",
- real_newpath);
- op_ret = -1;
- op_errno = EEXIST;
- goto out;
- }
-
- if (was_present && IA_ISDIR(stbuf.ia_type) &&
- gf_uuid_compare (newloc->inode->gfid, stbuf.ia_gfid)) {
- gf_msg (this->name, GF_LOG_WARNING, EEXIST, P_MSG_DIR_FOUND,
- "found directory %s at %s while renaming %s",
- uuid_utoa_r (newloc->inode->gfid, olddirid),
- real_newpath,
- uuid_utoa_r (stbuf.ia_gfid, newdirid));
- op_ret = -1;
- op_errno = EEXIST;
- goto out;
- }
-
- op_ret = posix_inode_ctx_get_all (oldloc->inode, this, &ctx_old);
- if (op_ret < 0) {
- op_ret = -1;
- op_errno = ENOMEM;
- goto out;
- }
-
- if (newloc->inode) {
- op_ret = posix_inode_ctx_get_all (newloc->inode, this, &ctx_new);
- if (op_ret < 0) {
- op_ret = -1;
- op_errno = ENOMEM;
- goto out;
- }
- }
-
- if (IA_ISDIR (oldloc->inode->ia_type))
- posix_handle_unset (this, oldloc->inode->gfid, NULL);
-
- pthread_mutex_lock (&ctx_old->pgfid_lock);
- {
- if (!IA_ISDIR (oldloc->inode->ia_type)
- && priv->update_pgfid_nlinks) {
- MAKE_PGFID_XATTR_KEY (pgfid_xattr_key,
- PGFID_XATTR_KEY_PREFIX,
- oldloc->pargfid);
- UNLINK_MODIFY_PGFID_XATTR (real_oldpath,
- pgfid_xattr_key,
- nlink_samepgfid, 0,
- op_ret,
- this, unlock);
- }
-
- if ((xdata) && (dict_get (xdata, GET_LINK_COUNT))
- && (real_newpath) && (was_present)) {
- pthread_mutex_lock (&ctx_new->pgfid_lock);
- locked = _gf_true;
- get_link_count = _gf_true;
- op_ret = posix_pstat (this, newloc->gfid, real_newpath,
- &stbuf);
- if ((op_ret == -1) && (errno != ENOENT)) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_LSTAT_FAILED,
- "lstat on %s failed", real_newpath);
- goto unlock;
- }
- }
-
- op_ret = sys_rename (real_oldpath, real_newpath);
- if (op_ret == -1) {
- op_errno = errno;
- if (op_errno == ENOTEMPTY) {
- gf_msg_debug (this->name, 0, "rename of %s to"
- " %s failed: %s", real_oldpath,
- real_newpath,
- strerror (op_errno));
- } else {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_RENAME_FAILED,
- "rename of %s to %s failed",
- real_oldpath, real_newpath);
- }
-
- if (priv->update_pgfid_nlinks
- && !IA_ISDIR (oldloc->inode->ia_type)) {
- LINK_MODIFY_PGFID_XATTR (real_oldpath,
- pgfid_xattr_key,
- nlink_samepgfid, 0,
- op_ret,
- this, unlock);
- }
-
- goto unlock;
- }
-
- if (locked) {
- pthread_mutex_unlock (&ctx_new->pgfid_lock);
- locked = _gf_false;
- }
-
- if ((get_link_count) &&
- (dict_set_uint32 (unwind_dict, GET_LINK_COUNT,
- stbuf.ia_nlink)))
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_SET_XDATA_FAIL, "failed to set "
- GET_LINK_COUNT" for %s", real_newpath);
-
- if (!IA_ISDIR (oldloc->inode->ia_type)
- && priv->update_pgfid_nlinks) {
- MAKE_PGFID_XATTR_KEY (pgfid_xattr_key,
- PGFID_XATTR_KEY_PREFIX,
- newloc->pargfid);
- LINK_MODIFY_PGFID_XATTR (real_newpath,
- pgfid_xattr_key,
- nlink_samepgfid, 0,
- op_ret,
- this, unlock);
- }
-
- if (!IA_ISDIR (oldloc->inode->ia_type) && priv->gfid2path) {
- MAKE_HANDLE_ABSPATH (gfid_path, this,
- oldloc->inode->gfid);
-
- posix_remove_gfid2path_xattr (this, gfid_path,
- oldloc->pargfid,
- oldloc->name);
- posix_set_gfid2path_xattr (this, gfid_path,
- newloc->pargfid,
- newloc->name);
- }
- }
-
-unlock:
- if (locked) {
- pthread_mutex_unlock (&ctx_new->pgfid_lock);
- locked = _gf_false;
- }
- pthread_mutex_unlock (&ctx_old->pgfid_lock);
-
- if (op_ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_XATTR_FAILED,
- "modification of "
- "parent gfid xattr failed (gfid:%s)",
- uuid_utoa (oldloc->inode->gfid));
- goto out;
- }
-
- if (was_dir)
- posix_handle_unset (this, victim, NULL);
-
- if (was_present && !was_dir && nlink == 1)
- posix_handle_unset (this, victim, NULL);
-
- if (IA_ISDIR (oldloc->inode->ia_type)) {
- posix_handle_soft (this, real_newpath, newloc,
- oldloc->inode->gfid, NULL);
- }
-
- op_ret = posix_pstat (this, NULL, real_newpath, &stbuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "lstat on %s failed", real_newpath);
- goto out;
- }
-
- op_ret = posix_pstat (this, oldloc->pargfid, par_oldpath, &postoldparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "post-operation lstat on parent %s failed",
- par_oldpath);
- goto out;
- }
-
- op_ret = posix_pstat (this, newloc->pargfid, par_newpath, &postnewparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "post-operation lstat on parent %s failed",
- par_newpath);
- goto out;
- }
-
- if (was_present)
- unwind_dict = posix_dict_set_nlink (xdata, unwind_dict, nlink);
- op_ret = 0;
-out:
-
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (rename, frame, op_ret, op_errno, &stbuf,
- &preoldparent, &postoldparent,
- &prenewparent, &postnewparent, unwind_dict);
-
- if (unwind_dict)
- dict_unref (unwind_dict);
-
- return 0;
-}
-
-
-int
-posix_link (call_frame_t *frame, xlator_t *this,
- loc_t *oldloc, loc_t *newloc, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char *real_oldpath = 0;
- char *real_newpath = 0;
- char *par_newpath = 0;
- struct iatt stbuf = {0, };
- struct posix_private *priv = NULL;
- struct iatt preparent = {0,};
- struct iatt postparent = {0,};
- int32_t nlink_samepgfid = 0;
- char *pgfid_xattr_key = NULL;
- gf_boolean_t entry_created = _gf_false;
- posix_inode_ctx_t *ctx = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (oldloc, out);
- VALIDATE_OR_GOTO (newloc, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
- MAKE_INODE_HANDLE (real_oldpath, this, oldloc, &stbuf);
- if (!real_oldpath) {
- op_errno = errno;
- goto out;
- }
-
- MAKE_ENTRY_HANDLE (real_newpath, par_newpath, this, newloc, &stbuf);
- if (!real_newpath || !par_newpath) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
-
- op_ret = posix_pstat (this, newloc->pargfid, par_newpath, &preparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "lstat failed: %s", par_newpath);
- goto out;
- }
-
-
- op_ret = sys_link (real_oldpath, real_newpath);
-
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LINK_FAILED,
- "link %s to %s failed",
- real_oldpath, real_newpath);
- goto out;
- }
-
- entry_created = _gf_true;
-
- op_ret = posix_pstat (this, NULL, real_newpath, &stbuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "lstat on %s failed", real_newpath);
- goto out;
- }
-
- op_ret = posix_pstat (this, newloc->pargfid, par_newpath, &postparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "lstat failed: %s", par_newpath);
- goto out;
- }
-
- if (priv->update_pgfid_nlinks) {
- MAKE_PGFID_XATTR_KEY (pgfid_xattr_key, PGFID_XATTR_KEY_PREFIX,
- newloc->pargfid);
-
- op_ret = posix_inode_ctx_get_all (newloc->inode, this, &ctx);
- if (op_ret < 0) {
- op_errno = ENOMEM;
- goto out;
- }
-
- pthread_mutex_lock (&ctx->pgfid_lock);
- {
- LINK_MODIFY_PGFID_XATTR (real_newpath, pgfid_xattr_key,
- nlink_samepgfid, 0, op_ret,
- this, unlock);
- }
- unlock:
- pthread_mutex_unlock (&ctx->pgfid_lock);
-
- if (op_ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_XATTR_FAILED, "modification of "
- "parent gfid xattr failed (path:%s gfid:%s)",
- real_newpath, uuid_utoa (newloc->inode->gfid));
- goto out;
- }
- }
-
- if (priv->gfid2path) {
- if (stbuf.ia_nlink <= MAX_GFID2PATH_LINK_SUP) {
- op_ret = posix_set_gfid2path_xattr (this, real_newpath,
- newloc->pargfid,
- newloc->name);
- if (op_ret) {
- op_errno = errno;
- goto out;
- }
- } else {
- gf_msg (this->name, GF_LOG_INFO, 0,
- P_MSG_XATTR_NOTSUP, "Link count exceeded. "
- "gfid2path xattr not set (path:%s gfid:%s)",
- real_newpath, uuid_utoa (newloc->inode->gfid));
- }
- }
-
- op_ret = 0;
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (link, frame, op_ret, op_errno,
- (oldloc)?oldloc->inode:NULL, &stbuf, &preparent,
- &postparent, NULL);
-
- if (op_ret < 0) {
- if (entry_created)
- sys_unlink (real_newpath);
- }
-
- return 0;
-}
-
-
-int32_t
-posix_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset,
- dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char *real_path = 0;
- struct posix_private *priv = NULL;
- struct iatt prebuf = {0,};
- struct iatt postbuf = {0,};
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- MAKE_INODE_HANDLE (real_path, this, loc, &prebuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "pre-operation lstat on %s failed",
- real_path ? real_path : "<null>");
- goto out;
- }
-
- op_ret = sys_truncate (real_path, offset);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_TRUNCATE_FAILED,
- "truncate on %s failed", real_path);
- goto out;
- }
-
- op_ret = posix_pstat (this, loc->gfid, real_path, &postbuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "lstat on %s failed", real_path);
- goto out;
- }
-
- op_ret = 0;
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (truncate, frame, op_ret, op_errno,
- &prebuf, &postbuf, NULL);
-
- return 0;
-}
-
-
-int
-posix_create (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int32_t flags, mode_t mode,
- mode_t umask, fd_t *fd, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- int32_t _fd = -1;
- int _flags = 0;
- char * real_path = NULL;
- char * par_path = NULL;
- struct iatt stbuf = {0, };
- struct posix_fd * pfd = NULL;
- struct posix_private * priv = NULL;
- char was_present = 1;
-
- gid_t gid = 0;
- struct iatt preparent = {0,};
- struct iatt postparent = {0,};
-
- int nlink_samepgfid = 0;
- char * pgfid_xattr_key = NULL;
- gf_boolean_t entry_created = _gf_false, gfid_set = _gf_false;
- mode_t mode_bit = 0;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
- VALIDATE_OR_GOTO (loc, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
- GFID_NULL_CHECK_AND_GOTO (frame, this, loc, xdata, op_ret, op_errno,
- out);
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
-
- MAKE_ENTRY_HANDLE (real_path, par_path, this, loc, &stbuf);
-
- gid = frame->root->gid;
-
- SET_FS_ID (frame->root->uid, gid);
- if (!real_path || !par_path) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
-
- op_ret = posix_pstat (this, loc->pargfid, par_path, &preparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "pre-operation lstat on parent %s failed",
- par_path);
- goto out;
- }
-
- if (preparent.ia_prot.sgid) {
- gid = preparent.ia_gid;
- }
-
- if (!flags) {
- _flags = O_CREAT | O_RDWR | O_EXCL;
- }
- else {
- _flags = flags | O_CREAT;
- }
-
- op_ret = posix_pstat (this, NULL, real_path, &stbuf);
- if ((op_ret == -1) && (errno == ENOENT)) {
- was_present = 0;
- }
-
- if (priv->o_direct)
- _flags |= O_DIRECT;
-
-
- mode_bit = (priv->create_mask & mode) | priv->force_create_mode;
- mode = override_umask (mode, mode_bit);
- _fd = sys_open (real_path, _flags, mode);
-
- if (_fd == -1) {
- op_errno = errno;
- op_ret = -1;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_OPEN_FAILED,
- "open on %s failed", real_path);
- goto out;
- }
-
- if ((_flags & O_CREAT) && (_flags & O_EXCL)) {
- entry_created = _gf_true;
- }
-
-
- if (was_present)
- goto fill_stat;
-
-#ifndef HAVE_SET_FSID
- op_ret = sys_chown (real_path, frame->root->uid, gid);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_CHOWN_FAILED,
- "chown on %s failed", real_path);
- }
-#endif
- op_ret = posix_acl_xattr_set (this, real_path, xdata);
- if (op_ret) {
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_ACL_FAILED,
- "setting ACLs on %s failed", real_path);
- }
-
- if (priv->update_pgfid_nlinks) {
- MAKE_PGFID_XATTR_KEY (pgfid_xattr_key, PGFID_XATTR_KEY_PREFIX,
- loc->pargfid);
- nlink_samepgfid = 1;
- SET_PGFID_XATTR (real_path, pgfid_xattr_key, nlink_samepgfid,
- XATTR_CREATE, op_ret, this, ignore);
- }
-
- if (priv->gfid2path) {
- posix_set_gfid2path_xattr (this, real_path, loc->pargfid,
- loc->name);
- }
-ignore:
- op_ret = posix_entry_create_xattr_set (this, real_path, xdata);
- if (op_ret) {
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_XATTR_FAILED,
- "setting xattrs on %s failed ", real_path);
- }
-
-fill_stat:
- op_ret = posix_gfid_set (this, real_path, loc, xdata);
- if (op_ret) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_GFID_FAILED,
- "setting gfid on %s failed", real_path);
- } else {
- gfid_set = _gf_true;
- }
-
- op_ret = posix_fdstat (this, _fd, &stbuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
- "fstat on %d failed", _fd);
- goto out;
- }
-
- op_ret = posix_pstat (this, loc->pargfid, par_path, &postparent);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "post-operation lstat on parent %s failed",
- par_path);
- goto out;
- }
-
- op_ret = -1;
- pfd = GF_CALLOC (1, sizeof (*pfd), gf_posix_mt_posix_fd);
- if (!pfd) {
- op_errno = errno;
- goto out;
- }
-
- pfd->flags = flags;
- pfd->fd = _fd;
-
- op_ret = fd_ctx_set (fd, this, (uint64_t)(long)pfd);
- if (op_ret)
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_FD_PATH_SETTING_FAILED,
- "failed to set the fd context path=%s fd=%p",
- real_path, fd);
-
- LOCK (&priv->lock);
- {
- priv->nr_files++;
- }
- UNLOCK (&priv->lock);
-
- op_ret = 0;
-
-out:
- SET_TO_OLD_FS_ID ();
-
- if ((-1 == op_ret) && (_fd != -1)) {
- sys_close (_fd);
- }
-
- STACK_UNWIND_STRICT (create, frame, op_ret, op_errno,
- fd, (loc)?loc->inode:NULL, &stbuf, &preparent,
- &postparent, xdata);
-
- if (op_ret < 0) {
- if (entry_created)
- sys_unlink (real_path);
-
- if (gfid_set)
- posix_gfid_unset (this, xdata);
- }
-
- return 0;
-}
-
-int32_t
-posix_open (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int32_t flags, fd_t *fd, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char *real_path = NULL;
- int32_t _fd = -1;
- struct posix_fd *pfd = NULL;
- struct posix_private *priv = NULL;
- struct iatt stbuf = {0, };
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (this->private, out);
- VALIDATE_OR_GOTO (loc, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- if (flags & O_CREAT)
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
-
- MAKE_INODE_HANDLE (real_path, this, loc, &stbuf);
- if (!real_path) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
-
- if (IA_ISLNK (stbuf.ia_type)) {
- op_ret = -1;
- op_errno = ELOOP;
- goto out;
- }
-
- op_ret = -1;
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- if (priv->o_direct)
- flags |= O_DIRECT;
-
- _fd = sys_open (real_path, flags, priv->force_create_mode);
- if (_fd == -1) {
- op_ret = -1;
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FILE_OP_FAILED,
- "open on %s, flags: %d", real_path, flags);
- goto out;
- }
-
- pfd = GF_CALLOC (1, sizeof (*pfd), gf_posix_mt_posix_fd);
- if (!pfd) {
- op_errno = errno;
- goto out;
- }
-
- pfd->flags = flags;
- pfd->fd = _fd;
-
- op_ret = fd_ctx_set (fd, this, (uint64_t)(long)pfd);
- if (op_ret)
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_FD_PATH_SETTING_FAILED,
- "failed to set the fd context path=%s fd=%p",
- real_path, fd);
-
- LOCK (&priv->lock);
- {
- priv->nr_files++;
- }
- UNLOCK (&priv->lock);
-
- op_ret = 0;
-
-out:
- if (op_ret == -1) {
- if (_fd != -1) {
- sys_close (_fd);
- }
- }
-
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (open, frame, op_ret, op_errno, fd, NULL);
-
- return 0;
-}
-
-int
-posix_readv (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t offset, uint32_t flags, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- int _fd = -1;
- struct posix_private * priv = NULL;
- struct iobuf * iobuf = NULL;
- struct iobref * iobref = NULL;
- struct iovec vec = {0,};
- struct posix_fd * pfd = NULL;
- struct iatt stbuf = {0,};
- int ret = -1;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
- "pfd is NULL from fd=%p", fd);
- goto out;
- }
-
- if (!size) {
- op_errno = EINVAL;
- gf_msg (this->name, GF_LOG_WARNING, EINVAL,
- P_MSG_INVALID_ARGUMENT, "size=%"GF_PRI_SIZET, size);
- goto out;
- }
-
- iobuf = iobuf_get_page_aligned (this->ctx->iobuf_pool, size,
- ALIGN_SIZE);
- if (!iobuf) {
- op_errno = ENOMEM;
- goto out;
- }
-
- _fd = pfd->fd;
- op_ret = sys_pread (_fd, iobuf->ptr, size, offset);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_READ_FAILED, "read failed on gfid=%s, "
- "fd=%p, offset=%"PRIu64" size=%"GF_PRI_SIZET", "
- "buf=%p", uuid_utoa (fd->inode->gfid), fd,
- offset, size, iobuf->ptr);
- goto out;
- }
-
- LOCK (&priv->lock);
- {
- priv->read_value += op_ret;
- }
- UNLOCK (&priv->lock);
-
- vec.iov_base = iobuf->ptr;
- vec.iov_len = op_ret;
-
- iobref = iobref_new ();
-
- iobref_add (iobref, iobuf);
-
- /*
- * readv successful, and we need to get the stat of the file
- * we read from
- */
-
- op_ret = posix_fdstat (this, _fd, &stbuf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
- "fstat failed on fd=%p", fd);
- goto out;
- }
-
- /* Hack to notify higher layers of EOF. */
- if (!stbuf.ia_size || (offset + vec.iov_len) >= stbuf.ia_size)
- op_errno = ENOENT;
-
- op_ret = vec.iov_len;
-out:
-
- STACK_UNWIND_STRICT (readv, frame, op_ret, op_errno,
- &vec, 1, &stbuf, iobref, NULL);
-
- if (iobref)
- iobref_unref (iobref);
- if (iobuf)
- iobuf_unref (iobuf);
-
- return 0;
-}
-
-
-int32_t
-__posix_pwritev (int fd, struct iovec *vector, int count, off_t offset)
-{
- int32_t op_ret = 0;
- int idx = 0;
- int retval = 0;
- off_t internal_off = 0;
-
- if (!vector)
- return -EFAULT;
-
- internal_off = offset;
- for (idx = 0; idx < count; idx++) {
- retval = sys_pwrite (fd, vector[idx].iov_base, vector[idx].iov_len,
- internal_off);
- if (retval == -1) {
- op_ret = -errno;
- goto err;
- }
- op_ret += retval;
- internal_off += retval;
- }
-
-err:
- return op_ret;
-}
-
-int32_t
-__posix_writev (int fd, struct iovec *vector, int count, off_t startoff,
- int odirect)
-{
- int32_t op_ret = 0;
- int idx = 0;
- int max_buf_size = 0;
- int retval = 0;
- char *buf = NULL;
- char *alloc_buf = NULL;
- off_t internal_off = 0;
-
- /* Check for the O_DIRECT flag during open() */
- if (!odirect)
- return __posix_pwritev (fd, vector, count, startoff);
-
- for (idx = 0; idx < count; idx++) {
- if (max_buf_size < vector[idx].iov_len)
- max_buf_size = vector[idx].iov_len;
- }
-
- alloc_buf = _page_aligned_alloc (max_buf_size, &buf);
- if (!alloc_buf) {
- op_ret = -errno;
- goto err;
- }
-
- internal_off = startoff;
- for (idx = 0; idx < count; idx++) {
- memcpy (buf, vector[idx].iov_base, vector[idx].iov_len);
-
- /* not sure whether writev works on O_DIRECT'd fd */
- retval = sys_pwrite (fd, buf, vector[idx].iov_len, internal_off);
- if (retval == -1) {
- op_ret = -errno;
- goto err;
- }
-
- op_ret += retval;
- internal_off += retval;
- }
-
-err:
- GF_FREE (alloc_buf);
-
- return op_ret;
-}
-
-dict_t*
-_fill_writev_xdata (fd_t *fd, dict_t *xdata, xlator_t *this, int is_append)
-{
- dict_t *rsp_xdata = NULL;
- int32_t ret = 0;
- inode_t *inode = NULL;
-
- if (fd)
- inode = fd->inode;
-
- if (!fd || !fd->inode || gf_uuid_is_null (fd->inode->gfid)) {
- gf_msg_callingfn (this->name, GF_LOG_ERROR, EINVAL,
- P_MSG_XATTR_FAILED, "fd: %p inode: %p"
- "gfid:%s", fd, inode?inode:0,
- inode?uuid_utoa(inode->gfid):"N/A");
- goto out;
- }
-
- if (!xdata)
- goto out;
-
- rsp_xdata = dict_new();
- if (!rsp_xdata)
- goto out;
-
- if (dict_get (xdata, GLUSTERFS_OPEN_FD_COUNT)) {
- ret = dict_set_uint32 (rsp_xdata, GLUSTERFS_OPEN_FD_COUNT,
- fd->inode->fd_count);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_DICT_SET_FAILED, "%s: Failed to set "
- "dictionary value for %s",
- uuid_utoa (fd->inode->gfid),
- GLUSTERFS_OPEN_FD_COUNT);
- }
- }
-
- if (dict_get (xdata, GLUSTERFS_WRITE_IS_APPEND)) {
- ret = dict_set_uint32 (rsp_xdata, GLUSTERFS_WRITE_IS_APPEND,
- is_append);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_DICT_SET_FAILED, "%s: Failed to set "
- "dictionary value for %s",
- uuid_utoa (fd->inode->gfid),
- GLUSTERFS_WRITE_IS_APPEND);
- }
- }
-out:
- return rsp_xdata;
-}
-
-int32_t
-posix_writev (call_frame_t *frame, xlator_t *this, fd_t *fd,
- struct iovec *vector, int32_t count, off_t offset,
- uint32_t flags, struct iobref *iobref, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- int _fd = -1;
- struct posix_private * priv = NULL;
- struct posix_fd * pfd = NULL;
- struct iatt preop = {0,};
- struct iatt postop = {0,};
- int ret = -1;
- dict_t *rsp_xdata = NULL;
- int is_append = 0;
- gf_boolean_t locked = _gf_false;
- gf_boolean_t write_append = _gf_false;
- gf_boolean_t update_atomic = _gf_false;
- posix_inode_ctx_t *ctx = NULL;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
- VALIDATE_OR_GOTO (vector, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- priv = this->private;
-
- VALIDATE_OR_GOTO (priv, out);
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, ret, P_MSG_PFD_NULL,
- "pfd is NULL from fd=%p", fd);
- goto out;
- }
-
- _fd = pfd->fd;
-
- if (xdata) {
- if (dict_get (xdata, GLUSTERFS_WRITE_IS_APPEND))
- write_append = _gf_true;
- if (dict_get (xdata, GLUSTERFS_WRITE_UPDATE_ATOMIC))
- update_atomic = _gf_true;
- }
-
- /* The write_is_append check and write must happen
- atomically. Else another write can overtake this
- write after the check and get written earlier.
-
- So lock before preop-stat and unlock after write.
- */
-
- /*
- * The update_atomic option is to instruct posix to do prestat,
- * write and poststat atomically. This is to prevent any modification to
- * ia_size and ia_blocks until poststat and the diff in their values
- * between pre and poststat could be of use for some translators (shard
- * as of today).
- */
-
- op_ret = posix_inode_ctx_get_all (fd->inode, this, &ctx);
- if (op_ret < 0) {
- op_errno = ENOMEM;
- goto out;
- }
-
- if (write_append || update_atomic) {
- locked = _gf_true;
- pthread_mutex_lock (&ctx->write_atomic_lock);
- }
-
- op_ret = posix_fdstat (this, _fd, &preop);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
- "pre-operation fstat failed on fd=%p", fd);
- goto out;
- }
-
- if (locked && write_append) {
- if (preop.ia_size == offset || (fd->flags & O_APPEND))
- is_append = 1;
- }
-
- op_ret = __posix_writev (_fd, vector, count, offset,
- (pfd->flags & O_DIRECT));
-
- if (locked && (!update_atomic)) {
- pthread_mutex_unlock (&ctx->write_atomic_lock);
- locked = _gf_false;
- }
-
- if (op_ret < 0) {
- op_errno = -op_ret;
- op_ret = -1;
- gf_msg (this->name, GF_LOG_ERROR, op_errno, P_MSG_WRITE_FAILED,
- "write failed: offset %"PRIu64
- ",", offset);
- goto out;
- }
-
- rsp_xdata = _fill_writev_xdata (fd, xdata, this, is_append);
- /* writev successful, we also need to get the stat of
- * the file we wrote to
- */
-
- ret = posix_fdstat (this, _fd, &postop);
- if (ret == -1) {
- op_ret = -1;
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_FSTAT_FAILED,
- "post-operation fstat failed on fd=%p",
- fd);
- goto out;
- }
-
- if (locked) {
- pthread_mutex_unlock (&ctx->write_atomic_lock);
- locked = _gf_false;
- }
-
- if (flags & (O_SYNC|O_DSYNC)) {
- ret = sys_fsync (_fd);
- if (ret) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_WRITEV_FAILED,
- "fsync() in writev on fd %d failed",
- _fd);
- op_ret = -1;
- op_errno = errno;
- goto out;
- }
- }
-
- LOCK (&priv->lock);
- {
- priv->write_value += op_ret;
- }
- UNLOCK (&priv->lock);
-
-out:
-
- if (locked) {
- pthread_mutex_unlock (&ctx->write_atomic_lock);
- locked = _gf_false;
- }
-
- STACK_UNWIND_STRICT (writev, frame, op_ret, op_errno, &preop, &postop,
- rsp_xdata);
-
- if (rsp_xdata)
- dict_unref (rsp_xdata);
- return 0;
-}
-
-
-int32_t
-posix_statfs (call_frame_t *frame, xlator_t *this,
- loc_t *loc, dict_t *xdata)
-{
- char * real_path = NULL;
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- struct statvfs buf = {0, };
- struct posix_private * priv = NULL;
- int shared_by = 1;
- int percent = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
- VALIDATE_OR_GOTO (this->private, out);
-
- MAKE_INODE_HANDLE (real_path, this, loc, NULL);
- if (!real_path) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
-
- priv = this->private;
-
- op_ret = sys_statvfs (real_path, &buf);
-
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_STATVFS_FAILED,
- "statvfs failed on %s", real_path);
- goto out;
- }
-
- percent = priv->disk_reserve;
- buf.f_bfree = (buf.f_bfree - ((buf.f_blocks * percent) / 100));
-
- shared_by = priv->shared_brick_count;
- if (shared_by > 1) {
- buf.f_blocks /= shared_by;
- buf.f_bfree /= shared_by;
- buf.f_bavail /= shared_by;
- buf.f_files /= shared_by;
- buf.f_ffree /= shared_by;
- buf.f_favail /= shared_by;
- }
-
- if (!priv->export_statfs) {
- buf.f_blocks = 0;
- buf.f_bfree = 0;
- buf.f_bavail = 0;
- buf.f_files = 0;
- buf.f_ffree = 0;
- buf.f_favail = 0;
- }
-
- op_ret = 0;
-
-out:
- STACK_UNWIND_STRICT (statfs, frame, op_ret, op_errno, &buf, NULL);
- return 0;
-}
-
-
-int32_t
-posix_flush (call_frame_t *frame, xlator_t *this,
- fd_t *fd, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- int ret = -1;
- struct posix_fd *pfd = NULL;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
- "pfd is NULL on fd=%p", fd);
- goto out;
- }
-
- op_ret = 0;
-
-out:
- STACK_UNWIND_STRICT (flush, frame, op_ret, op_errno, NULL);
-
- return 0;
-}
-
-
-int32_t
-posix_release (xlator_t *this, fd_t *fd)
-{
- struct posix_private * priv = NULL;
- struct posix_fd * pfd = NULL;
- int ret = -1;
- uint64_t tmp_pfd = 0;
-
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
-
- ret = fd_ctx_del (fd, this, &tmp_pfd);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_PFD_NULL,
- "pfd is NULL from fd=%p", fd);
- goto out;
- }
- pfd = (struct posix_fd *)(long)tmp_pfd;
-
- if (pfd->dir) {
- gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_DIR_NOT_NULL,
- "pfd->dir is %p (not NULL) for file fd=%p",
- pfd->dir, fd);
- }
-
- pthread_mutex_lock (&priv->janitor_lock);
- {
- INIT_LIST_HEAD (&pfd->list);
- list_add_tail (&pfd->list, &priv->janitor_fds);
- pthread_cond_signal (&priv->janitor_cond);
- }
- pthread_mutex_unlock (&priv->janitor_lock);
-
- LOCK (&priv->lock);
- {
- priv->nr_files--;
- }
- UNLOCK (&priv->lock);
-
-out:
- return 0;
-}
-
-
-int
-posix_batch_fsync (call_frame_t *frame, xlator_t *this,
- fd_t *fd, int datasync, dict_t *xdata)
-{
- call_stub_t *stub = NULL;
- struct posix_private *priv = NULL;
-
- priv = this->private;
-
- stub = fop_fsync_stub (frame, default_fsync, fd, datasync, xdata);
- if (!stub) {
- STACK_UNWIND_STRICT (fsync, frame, -1, ENOMEM, 0, 0, 0);
- return 0;
- }
-
- pthread_mutex_lock (&priv->fsync_mutex);
- {
- list_add_tail (&stub->list, &priv->fsyncs);
- priv->fsync_queue_count++;
- pthread_cond_signal (&priv->fsync_cond);
- }
- pthread_mutex_unlock (&priv->fsync_mutex);
-
- return 0;
-}
-
-
-int32_t
-posix_fsync (call_frame_t *frame, xlator_t *this,
- fd_t *fd, int32_t datasync, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- int _fd = -1;
- struct posix_fd * pfd = NULL;
- int ret = -1;
- struct iatt preop = {0,};
- struct iatt postop = {0,};
- struct posix_private *priv = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
-#ifdef GF_DARWIN_HOST_OS
- /* Always return success in case of fsync in MAC OS X */
- op_ret = 0;
- goto out;
-#endif
-
- priv = this->private;
-
- if (priv->batch_fsync_mode && xdata && dict_get (xdata, "batch-fsync")) {
- posix_batch_fsync (frame, this, fd, datasync, xdata);
- return 0;
- }
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
- "pfd not found in fd's ctx");
- goto out;
- }
-
- _fd = pfd->fd;
-
- op_ret = posix_fdstat (this, _fd, &preop);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_WARNING, errno, P_MSG_FSTAT_FAILED,
- "pre-operation fstat failed on fd=%p", fd);
- goto out;
- }
-
- if (datasync) {
- op_ret = sys_fdatasync (_fd);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_FSYNC_FAILED, "fdatasync on fd=%p"
- "failed:", fd);
- goto out;
- }
- } else {
- op_ret = sys_fsync (_fd);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_FSYNC_FAILED, "fsync on fd=%p "
- "failed", fd);
- goto out;
- }
- }
-
- op_ret = posix_fdstat (this, _fd, &postop);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_WARNING, errno, P_MSG_FSTAT_FAILED,
- "post-operation fstat failed on fd=%p", fd);
- goto out;
- }
-
- op_ret = 0;
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (fsync, frame, op_ret, op_errno, &preop, &postop,
- NULL);
-
- return 0;
-}
-
-static int gf_posix_xattr_enotsup_log;
-static int
-_handle_setxattr_keyvalue_pair (dict_t *d, char *k, data_t *v,
- void *tmp)
-{
- posix_xattr_filler_t *filler = NULL;
-
- filler = tmp;
-
- return posix_handle_pair (filler->this, filler->real_path, k, v,
- filler->flags, filler->stbuf);
-}
-
-#ifdef GF_DARWIN_HOST_OS
-static int
-map_xattr_flags(int flags)
-{
- /* DARWIN has different defines on XATTR_ flags.
- There do not seem to be a POSIX standard
- Parse any other flags over.
- */
- int darwinflags = flags & ~(GF_XATTR_CREATE | GF_XATTR_REPLACE | XATTR_REPLACE);
- if (GF_XATTR_CREATE & flags)
- darwinflags |= XATTR_CREATE;
- if (GF_XATTR_REPLACE & flags)
- darwinflags |= XATTR_REPLACE;
- return darwinflags;
-}
-#endif
-
-int32_t
-posix_setxattr (call_frame_t *frame, xlator_t *this,
- loc_t *loc, dict_t *dict, int flags, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char * real_path = NULL;
- char *acl_xattr = NULL;
- struct iatt stbuf = {0};
- int32_t ret = 0;
- ssize_t acl_size = 0;
- dict_t *xattr = NULL;
- posix_xattr_filler_t filler = {0,};
- struct posix_private *priv = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
- VALIDATE_OR_GOTO (dict, out);
-
- priv = this->private;
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
-
- MAKE_INODE_HANDLE (real_path, this, loc, NULL);
- if (!real_path) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
-
- posix_pstat(this, loc->gfid, real_path, &stbuf);
-
- op_ret = -1;
-
- dict_del (dict, GFID_XATTR_KEY);
- dict_del (dict, GF_XATTR_VOL_ID_KEY);
- /* the io-stats-dump key should not reach disk */
- dict_del (dict, GF_XATTR_IOSTATS_DUMP_KEY);
-
- filler.real_path = real_path;
- filler.this = this;
- filler.stbuf = &stbuf;
-
-#ifdef GF_DARWIN_HOST_OS
- filler.flags = map_xattr_flags(flags);
-#else
- filler.flags = flags;
-#endif
- op_ret = dict_foreach (dict, _handle_setxattr_keyvalue_pair,
- &filler);
- if (op_ret < 0) {
- op_errno = -op_ret;
- op_ret = -1;
- goto out;
- }
-
- xattr = dict_new();
- if (!xattr)
- goto out;
-
-/*
- * FIXFIX: Send the stbuf info in the xdata for now
- * This is used by DHT to redirect FOPs if the file is being migrated
- * Ignore errors for now
- */
- if (xdata && dict_get (xdata, DHT_IATT_IN_XDATA_KEY)) {
- ret = posix_pstat(this, loc->gfid, real_path, &stbuf);
- if (ret)
- goto out;
-
- ret = posix_set_iatt_in_dict (xattr, &stbuf);
- }
-
-/*
- * ACL can be set on a file/folder using GF_POSIX_ACL_*_KEY xattrs which
- * won't aware of access-control xlator. To update its context correctly,
- * POSIX_ACL_*_XATTR stored in xdata which is send in the call_back path.
- */
- if (dict_get (dict, GF_POSIX_ACL_ACCESS)) {
-
- /*
- * The size of buffer will be know after calling sys_lgetxattr,
- * so first we allocate buffer with large size(~4k), then we
- * reduced into required size using GF_REALLO().
- */
- acl_xattr = GF_CALLOC (1, ACL_BUFFER_MAX, gf_posix_mt_char);
- if (!acl_xattr)
- goto out;
-
- acl_size = sys_lgetxattr (real_path, POSIX_ACL_ACCESS_XATTR,
- acl_xattr, ACL_BUFFER_MAX);
-
- if (acl_size < 0) {
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_XATTR_FAILED, "Posix acl is not set "
- "properly at the backend");
- goto out;
- }
-
- /* If acl_size is more than max buffer size, just ignore it */
- if (acl_size >= ACL_BUFFER_MAX) {
- gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
- P_MSG_BUFFER_OVERFLOW, "size of acl is more"
- "than the buffer");
- goto out;
- }
-
- acl_xattr = GF_REALLOC (acl_xattr, acl_size);
- if (!acl_xattr)
- goto out;
-
- ret = dict_set_bin (xattr, POSIX_ACL_ACCESS_XATTR,
- acl_xattr, acl_size);
- if (ret) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_SET_XDATA_FAIL, "failed to set"
- "xdata for acl");
- GF_FREE (acl_xattr);
- goto out;
- }
- }
-
- if (dict_get (dict, GF_POSIX_ACL_DEFAULT)) {
-
- acl_xattr = GF_CALLOC (1, ACL_BUFFER_MAX, gf_posix_mt_char);
- if (!acl_xattr)
- goto out;
-
- acl_size = sys_lgetxattr (real_path, POSIX_ACL_DEFAULT_XATTR,
- acl_xattr, ACL_BUFFER_MAX);
-
- if (acl_size < 0) {
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_XATTR_FAILED, "Posix acl is not set "
- "properly at the backend");
- goto out;
- }
-
- if (acl_size >= ACL_BUFFER_MAX) {
- gf_msg (this->name, GF_LOG_WARNING, ENOMEM,
- P_MSG_BUFFER_OVERFLOW, "size of acl is more"
- "than the buffer");
- goto out;
- }
-
- acl_xattr = GF_REALLOC (acl_xattr, acl_size);
- if (!acl_xattr)
- goto out;
-
- ret = dict_set_bin (xattr, POSIX_ACL_DEFAULT_XATTR,
- acl_xattr, acl_size);
- if (ret) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_SET_XDATA_FAIL, "failed to set"
- "xdata for acl");
- GF_FREE (acl_xattr);
- goto out;
- }
- }
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (setxattr, frame, op_ret, op_errno, xattr);
-
- if (xattr)
- dict_unref (xattr);
-
- return 0;
-}
-
-
-int
-posix_xattr_get_real_filename (call_frame_t *frame, xlator_t *this, loc_t *loc,
- const char *key, dict_t *dict, dict_t *xdata)
-{
- int ret = -1;
- int op_ret = -1;
- const char *fname = NULL;
- char *real_path = NULL;
- char *found = NULL;
- DIR *fd = NULL;
- struct dirent *entry = NULL;
- struct dirent scratch[2] = {{0,},};
-
- MAKE_INODE_HANDLE (real_path, this, loc, NULL);
- if (!real_path) {
- return -ESTALE;
- }
- if (op_ret == -1) {
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_LSTAT_FAILED,
- "posix_xattr_get_real_filename (lstat) on %s failed",
- real_path);
- return -errno;
- }
-
- fd = sys_opendir (real_path);
- if (!fd)
- return -errno;
-
- fname = key + strlen (GF_XATTR_GET_REAL_FILENAME_KEY);
-
- for (;;) {
- errno = 0;
- entry = sys_readdir (fd, scratch);
- if (!entry || errno != 0)
- break;
-
- if (strcasecmp (entry->d_name, fname) == 0) {
- found = gf_strdup (entry->d_name);
- if (!found) {
- (void) sys_closedir (fd);
- return -ENOMEM;
- }
- break;
- }
- }
-
- (void) sys_closedir (fd);
-
- if (!found)
- return -ENOENT;
-
- ret = dict_set_dynstr (dict, (char *)key, found);
- if (ret) {
- GF_FREE (found);
- return -ENOMEM;
- }
- ret = strlen (found) + 1;
-
- return ret;
-}
-
-int
-posix_get_ancestry_directory (xlator_t *this, inode_t *leaf_inode,
- gf_dirent_t *head, char **path, int type,
- int32_t *op_errno, dict_t *xdata)
-{
- ssize_t handle_size = 0;
- struct posix_private *priv = NULL;
- inode_t *inode = NULL;
- int ret = -1;
- char dirpath[PATH_MAX] = {0,};
-
- priv = this->private;
-
- handle_size = POSIX_GFID_HANDLE_SIZE(priv->base_path_length);
-
- ret = posix_make_ancestryfromgfid (this, dirpath, PATH_MAX + 1, head,
- type | POSIX_ANCESTRY_PATH,
- leaf_inode->gfid,
- handle_size, priv->base_path,
- leaf_inode->table, &inode, xdata,
- op_errno);
- if (ret < 0)
- goto out;
-
-
- /* there is already a reference in loc->inode */
- inode_unref (inode);
-
- if ((type & POSIX_ANCESTRY_PATH) && (path != NULL)) {
- if (strcmp (dirpath, "/"))
- dirpath[strlen (dirpath) - 1] = '\0';
-
- *path = gf_strdup (dirpath);
- }
-
-out:
- return ret;
-}
-
-int32_t
-posix_links_in_same_directory (char *dirpath, int count, inode_t *leaf_inode,
- inode_t *parent, struct stat *stbuf,
- gf_dirent_t *head, char **path,
- int type, dict_t *xdata, int32_t *op_errno)
-{
- int op_ret = -1;
- gf_dirent_t *gf_entry = NULL;
- xlator_t *this = NULL;
- struct posix_private *priv = NULL;
- DIR *dirp = NULL;
- struct dirent *entry = NULL;
- struct dirent scratch[2] = {{0,},};
- char temppath[PATH_MAX] = {0,};
- char scr[PATH_MAX * 4] = {0,};
-
- this = THIS;
-
- priv = this->private;
-
- dirp = sys_opendir (dirpath);
- if (!dirp) {
- *op_errno = errno;
- gf_msg (this->name, GF_LOG_WARNING, errno, P_MSG_OPEN_FAILED,
- "could not opendir %s", dirpath);
- goto out;
- }
-
- while (count > 0) {
- errno = 0;
- entry = sys_readdir (dirp, scratch);
- if (!entry || errno != 0)
- break;
-
- if (entry->d_ino != stbuf->st_ino)
- continue;
-
- /* Linking an inode here, can cause a race in posix_acl.
- Parent inode gets linked here, but before
- it reaches posix_acl_readdirp_cbk, create/lookup can
- come on a leaf-inode, as parent-inode-ctx not yet updated
- in posix_acl_readdirp_cbk, create and lookup can fail
- with EACCESS. So do the inode linking in the quota xlator
-
- linked_inode = inode_link (leaf_inode, parent,
- entry->d_name, NULL);
-
- GF_ASSERT (linked_inode == leaf_inode);
- inode_unref (linked_inode);*/
-
- if (type & POSIX_ANCESTRY_DENTRY) {
- loc_t loc = {0, };
-
- loc.inode = inode_ref (leaf_inode);
- gf_uuid_copy (loc.gfid, leaf_inode->gfid);
-
- (void) snprintf (temppath, sizeof(temppath), "%s/%s",
- dirpath, entry->d_name);
-
- gf_entry = gf_dirent_for_name (entry->d_name);
- gf_entry->inode = inode_ref (leaf_inode);
- gf_entry->dict
- = posix_xattr_fill (this, temppath, &loc, NULL,
- -1, xdata, NULL);
- iatt_from_stat (&(gf_entry->d_stat), stbuf);
-
- list_add_tail (&gf_entry->list, &head->list);
- loc_wipe (&loc);
- }
-
- if (type & POSIX_ANCESTRY_PATH) {
- (void) snprintf (temppath, sizeof(temppath), "%s/%s",
- &dirpath[priv->base_path_length],
- entry->d_name);
- if (!*path) {
- *path = gf_strdup (temppath);
- } else {
- /* creating a colon separated */
- /* list of hard links */
- (void) snprintf (scr, sizeof(scr), "%s:%s",
- *path, temppath);
-
- GF_FREE (*path);
- *path = gf_strdup (scr);
- }
- if (!*path) {
- op_ret = -1;
- *op_errno = ENOMEM;
- goto out;
- }
- }
-
- count--;
- }
-
- op_ret = 0;
-out:
- if (dirp) {
- op_ret = sys_closedir (dirp);
- if (op_ret == -1) {
- *op_errno = errno;
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_CLOSE_FAILED, "closedir failed");
- }
- }
-
- return op_ret;
-}
-
-int
-posix_get_ancestry_non_directory (xlator_t *this, inode_t *leaf_inode,
- gf_dirent_t *head, char **path, int type,
- int32_t *op_errno, dict_t *xdata)
-{
- size_t remaining_size = 0;
- int op_ret = -1, pathlen = -1;
- ssize_t handle_size = 0;
- uuid_t pgfid = {0,};
- int nlink_samepgfid = 0;
- struct stat stbuf = {0,};
- char *list = NULL;
- int32_t list_offset = 0;
- struct posix_private *priv = NULL;
- ssize_t size = 0;
- inode_t *parent = NULL;
- loc_t *loc = NULL;
- char *leaf_path = NULL;
- char key[4096] = {0,};
- char dirpath[PATH_MAX] = {0,};
- char pgfidstr[UUID_CANONICAL_FORM_LEN+1] = {0,};
-
- priv = this->private;
-
- loc = GF_CALLOC (1, sizeof (*loc), gf_posix_mt_char);
- if (loc == NULL) {
- op_ret = -1;
- *op_errno = ENOMEM;
- goto out;
- }
-
- gf_uuid_copy (loc->gfid, leaf_inode->gfid);
-
- MAKE_INODE_HANDLE (leaf_path, this, loc, NULL);
- if (!leaf_path) {
- GF_FREE (loc);
- *op_errno = ESTALE;
- goto out;
- }
- GF_FREE (loc);
-
- size = sys_llistxattr (leaf_path, NULL, 0);
- if (size == -1) {
- *op_errno = errno;
- if ((errno == ENOTSUP) || (errno == ENOSYS)) {
- GF_LOG_OCCASIONALLY (gf_posix_xattr_enotsup_log,
- this->name, GF_LOG_WARNING,
- "Extended attributes not "
- "supported (try remounting brick"
- " with 'user_xattr' flag)");
-
- } else {
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_XATTR_FAILED, "listxattr failed on"
- "%s", leaf_path);
-
- }
-
- goto out;
- }
-
- if (size == 0) {
- op_ret = 0;
- goto out;
- }
-
- list = alloca (size);
- if (!list) {
- *op_errno = errno;
- goto out;
- }
-
- size = sys_llistxattr (leaf_path, list, size);
- if (size < 0) {
- op_ret = -1;
- *op_errno = errno;
- goto out;
- }
- remaining_size = size;
- list_offset = 0;
-
- op_ret = sys_lstat (leaf_path, &stbuf);
- if (op_ret == -1) {
- *op_errno = errno;
- gf_msg (this->name, GF_LOG_WARNING, errno, P_MSG_LSTAT_FAILED,
- "lstat failed on %s", leaf_path);
- goto out;
- }
-
- while (remaining_size > 0) {
- strncpy (key, list + list_offset, sizeof(key)-1);
- key[sizeof(key)-1] = '\0';
- if (strncmp (key, PGFID_XATTR_KEY_PREFIX,
- strlen (PGFID_XATTR_KEY_PREFIX)) != 0)
- goto next;
-
- op_ret = sys_lgetxattr (leaf_path, key,
- &nlink_samepgfid,
- sizeof(nlink_samepgfid));
- if (op_ret == -1) {
- *op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_XATTR_FAILED, "getxattr failed on "
- "%s: key = %s ", leaf_path, key);
- goto out;
- }
-
- nlink_samepgfid = ntoh32 (nlink_samepgfid);
-
- strncpy (pgfidstr, key + strlen(PGFID_XATTR_KEY_PREFIX),
- sizeof(pgfidstr)-1);
- pgfidstr[sizeof(pgfidstr)-1] = '\0';
- gf_uuid_parse (pgfidstr, pgfid);
-
- handle_size = POSIX_GFID_HANDLE_SIZE(priv->base_path_length);
-
- /* constructing the absolute real path of parent dir */
- strncpy (dirpath, priv->base_path, sizeof(dirpath)-1);
- dirpath[sizeof(dirpath)-1] = '\0';
- pathlen = PATH_MAX + 1 - priv->base_path_length;
-
- op_ret = posix_make_ancestryfromgfid (this,
- dirpath + priv->base_path_length,
- pathlen,
- head,
- type | POSIX_ANCESTRY_PATH,
- pgfid,
- handle_size,
- priv->base_path,
- leaf_inode->table,
- &parent, xdata, op_errno);
- if (op_ret < 0) {
- goto next;
- }
-
- dirpath[strlen (dirpath) - 1] = '\0';
-
- posix_links_in_same_directory (dirpath, nlink_samepgfid,
- leaf_inode, parent, &stbuf, head,
- path, type, xdata, op_errno);
-
- if (parent != NULL) {
- inode_unref (parent);
- parent = NULL;
- }
-
- next:
- remaining_size -= strlen (key) + 1;
- list_offset += strlen (key) + 1;
- } /* while (remaining_size > 0) */
-
- op_ret = 0;
-
-out:
- return op_ret;
-}
-
-int
-posix_get_ancestry (xlator_t *this, inode_t *leaf_inode,
- gf_dirent_t *head, char **path, int type, int32_t *op_errno,
- dict_t *xdata)
-{
- int ret = -1;
- struct posix_private *priv = NULL;
-
- priv = this->private;
-
- if (IA_ISDIR (leaf_inode->ia_type)) {
- ret = posix_get_ancestry_directory (this, leaf_inode,
- head, path, type, op_errno,
- xdata);
- } else {
-
- if (!priv->update_pgfid_nlinks)
- goto out;
- ret = posix_get_ancestry_non_directory (this, leaf_inode,
- head, path, type,
- op_errno, xdata);
- }
-
-out:
- if (ret && path && *path) {
- GF_FREE (*path);
- *path = NULL;
- }
-
- return ret;
-}
-
-/**
- * posix_getxattr - this function returns a dictionary with all the
- * key:value pair present as xattr. used for
- * both 'listxattr' and 'getxattr'.
- */
-int32_t
-posix_getxattr (call_frame_t *frame, xlator_t *this,
- loc_t *loc, const char *name, dict_t *xdata)
-{
- struct posix_private *priv = NULL;
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char *value = NULL;
- char *real_path = NULL;
- dict_t *dict = NULL;
- char *file_contents = NULL;
- int ret = -1;
- char *path = NULL;
- char *rpath = NULL;
- ssize_t size = 0;
- char *list = NULL;
- int32_t list_offset = 0;
- size_t remaining_size = 0;
- char *host_buf = NULL;
- char *keybuffer = NULL;
- char *value_buf = NULL;
- gf_boolean_t have_val = _gf_false;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
- MAKE_INODE_HANDLE (real_path, this, loc, NULL);
-
- op_ret = -1;
- priv = this->private;
-
- ret = posix_handle_georep_xattrs (frame, name, &op_errno, _gf_true);
- if (ret == -1) {
- op_ret = -1;
- goto out;
- }
-
- if (name && posix_is_gfid2path_xattr (name)) {
- op_ret = -1;
- op_errno = ENOATTR;
- goto out;
- }
-
- if (loc->inode && IA_ISDIR(loc->inode->ia_type) && name &&
- ZR_FILE_CONTENT_REQUEST(name)) {
- ret = posix_get_file_contents (this, loc->gfid, &name[15],
- &file_contents);
- if (ret < 0) {
- op_errno = -ret;
- gf_msg (this->name, GF_LOG_ERROR, op_errno,
- P_MSG_FILE_FAILED, "getting file contents"
- "failed");
- goto out;
- }
- }
-
- dict = dict_new ();
- if (!dict) {
- op_errno = ENOMEM;
- goto out;
- }
-
- if (loc->inode && name && GF_POSIX_ACL_REQUEST (name)) {
- ret = posix_pacl_get (real_path, name, &value);
- if (ret || !value) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_ACL_FAILED, "could not get acl (%s) for"
- "%s", name, real_path);
- op_ret = -1;
- goto out;
- }
-
- ret = dict_set_dynstr (dict, (char *)name, value);
- if (ret < 0) {
- GF_FREE (value);
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_ACL_FAILED, "could not set acl (%s) for"
- "%s in dictionary", name, real_path);
- op_ret = -1;
- op_errno = ENOMEM;
- goto out;
- }
-
- size = ret;
- goto done;
- }
-
- if (loc->inode && name &&
- (strncmp (name, GF_XATTR_GET_REAL_FILENAME_KEY,
- strlen (GF_XATTR_GET_REAL_FILENAME_KEY)) == 0)) {
- ret = posix_xattr_get_real_filename (frame, this, loc,
- name, dict, xdata);
- if (ret < 0) {
- op_ret = -1;
- op_errno = -ret;
- if (op_errno == ENOENT) {
- gf_msg_debug (this->name, 0, "Failed to get "
- "real filename (%s, %s)",
- loc->path, name);
- } else {
- gf_msg (this->name, GF_LOG_WARNING, op_errno,
- P_MSG_GETTING_FILENAME_FAILED,
- "Failed to get real filename (%s, %s):"
- , loc->path, name);
- }
- goto out;
- }
-
- size = ret;
- goto done;
- }
-
- if (loc->inode && name && !strcmp (name, GLUSTERFS_OPEN_FD_COUNT)) {
- if (!fd_list_empty (loc->inode)) {
- ret = dict_set_uint32 (dict, (char *)name, 1);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_DICT_SET_FAILED, "Failed to set "
- "dictionary value for %s", name);
- op_errno = ENOMEM;
- goto out;
- }
- } else {
- ret = dict_set_uint32 (dict, (char *)name, 0);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_DICT_SET_FAILED, "Failed to set "
- "dictionary value for %s", name);
- op_errno = ENOMEM;
- goto out;
- }
- }
- goto done;
- }
- if (loc->inode && name && (XATTR_IS_PATHINFO (name))) {
- if (LOC_HAS_ABSPATH (loc))
- MAKE_REAL_PATH (rpath, this, loc->path);
- else
- rpath = real_path;
-
- size = gf_asprintf (&host_buf, "<POSIX(%s):%s:%s>",
- priv->base_path,
- ((priv->node_uuid_pathinfo &&
- !gf_uuid_is_null(priv->glusterd_uuid))
- ? uuid_utoa (priv->glusterd_uuid)
- : priv->hostname), rpath);
- if (size < 0) {
- op_errno = ENOMEM;
- goto out;
- }
- ret = dict_set_dynstr (dict, (char *)name, host_buf);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_DICT_SET_FAILED, "could not set value"
- " (%s) in dictionary", host_buf);
- GF_FREE (host_buf);
- op_errno = ENOMEM;
- goto out;
- }
-
- goto done;
- }
-
- if (loc->inode && name &&
- (strcmp (name, GF_XATTR_NODE_UUID_KEY) == 0)
- && !gf_uuid_is_null (priv->glusterd_uuid)) {
- size = gf_asprintf (&host_buf, "%s",
- uuid_utoa (priv->glusterd_uuid));
- if (size == -1) {
- op_errno = ENOMEM;
- goto out;
- }
- ret = dict_set_dynstr (dict, GF_XATTR_NODE_UUID_KEY,
- host_buf);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, -ret,
- P_MSG_DICT_SET_FAILED, "could not set value"
- "(%s) in dictionary", host_buf);
- GF_FREE (host_buf);
- op_errno = -ret;
- goto out;
- }
- goto done;
- }
-
- if (loc->inode && name &&
- (strcmp (name, GFID_TO_PATH_KEY) == 0)) {
- ret = inode_path (loc->inode, NULL, &path);
- if (ret < 0) {
- op_errno = -ret;
- gf_msg (this->name, GF_LOG_WARNING, op_errno,
- P_MSG_INODE_PATH_GET_FAILED,
- "%s: could not get "
- "inode path", uuid_utoa (loc->inode->gfid));
- goto out;
- }
-
- size = ret;
- ret = dict_set_dynstr (dict, GFID_TO_PATH_KEY, path);
- if (ret < 0) {
- op_errno = ENOMEM;
- GF_FREE (path);
- goto out;
- }
- goto done;
- }
-
- if (loc->inode && name &&
- (strcmp (name, GFID2PATH_VIRT_XATTR_KEY) == 0)) {
- if (!priv->gfid2path) {
- op_errno = ENOATTR;
- op_ret = -1;
- goto out;
- }
- ret = posix_get_gfid2path (this, loc->inode, real_path,
- &op_errno, dict);
- if (ret < 0) {
- op_ret = -1;
- goto out;
- }
- size = ret;
- goto done;
- }
-
- if (loc->inode && name
- && (strcmp (name, GET_ANCESTRY_PATH_KEY) == 0)) {
- int type = POSIX_ANCESTRY_PATH;
-
- op_ret = posix_get_ancestry (this, loc->inode, NULL,
- &path, type, &op_errno,
- xdata);
- if (op_ret < 0) {
- op_ret = -1;
- op_errno = ENODATA;
- goto out;
- }
- size = op_ret;
- op_ret = dict_set_dynstr (dict, GET_ANCESTRY_PATH_KEY, path);
- if (op_ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, -op_ret,
- P_MSG_GET_KEY_VALUE_FAILED, "could not get "
- "value for key (%s)", GET_ANCESTRY_PATH_KEY);
- GF_FREE (path);
- op_errno = ENOMEM;
- goto out;
- }
-
- goto done;
- }
-
- if (loc->inode && name
- && (strncmp (name, GLUSTERFS_GET_OBJECT_SIGNATURE,
- strlen (GLUSTERFS_GET_OBJECT_SIGNATURE)) == 0)) {
- op_ret = posix_get_objectsignature (real_path, dict);
- if (op_ret < 0) {
- op_errno = -op_ret;
- goto out;
- }
-
- goto done;
- }
-
- /* here allocate value_buf of 8192 bytes to avoid one extra getxattr
- call,If buffer size is small to hold the xattr result then it will
- allocate a new buffer value of required size and call getxattr again
- */
-
- value_buf = alloca (XATTR_VAL_BUF_SIZE);
- if (name) {
- char *key = (char *)name;
-
- keybuffer = key;
-#if defined(GF_DARWIN_HOST_OS_DISABLED)
- if (priv->xattr_user_namespace == XATTR_STRIP) {
- if (strncmp(key, "user.",5) == 0) {
- key += 5;
- gf_msg_debug (this->name, 0, "getxattr for file %s"
- " stripping user key: %s -> %s",
- real_path, keybuffer, key);
- }
- }
-#endif
- memset (value_buf, '\0', XATTR_VAL_BUF_SIZE);
- size = sys_lgetxattr (real_path, key, value_buf,
- XATTR_VAL_BUF_SIZE-1);
- if (size >= 0) {
- have_val = _gf_true;
- } else {
- if (errno == ERANGE) {
- gf_msg (this->name, GF_LOG_INFO, errno,
- P_MSG_XATTR_FAILED,
- "getxattr failed due to overflow of buffer"
- " on %s: %s ", real_path, key);
- size = sys_lgetxattr (real_path, key, NULL, 0);
- }
- if (size == -1) {
- op_errno = errno;
- if ((op_errno == ENOTSUP) ||
- (op_errno == ENOSYS)) {
- GF_LOG_OCCASIONALLY (gf_posix_xattr_enotsup_log,
- this->name,
- GF_LOG_WARNING,
- "Extended attributes not "
- "supported (try remounting"
- " brick with 'user_xattr' "
- "flag)");
- }
- if ((op_errno == ENOATTR) ||
- (op_errno == ENODATA)) {
- gf_msg_debug (this->name, 0,
- "No such attribute:%s for file %s",
- key, real_path);
- } else {
- gf_msg (this->name, GF_LOG_ERROR,
- op_errno, P_MSG_XATTR_FAILED,
- "getxattr failed on %s: %s ",
- real_path, key);
- }
- goto out;
- }
- }
- value = GF_CALLOC (size + 1, sizeof(char), gf_posix_mt_char);
- if (!value) {
- op_ret = -1;
- op_errno = ENOMEM;
- goto out;
- }
- if (have_val) {
- memcpy (value, value_buf, size);
- } else {
- size = sys_lgetxattr (real_path, key, value, size);
- if (size == -1) {
- op_ret = -1;
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_XATTR_FAILED,
- "getxattr failed on %s: key = %s",
- real_path, key);
- GF_FREE (value);
- goto out;
- }
- }
- value [size] = '\0';
- op_ret = dict_set_dynptr (dict, key, value, size);
- if (op_ret < 0) {
- op_errno = -op_ret;
- gf_msg (this->name, GF_LOG_ERROR, op_errno,
- P_MSG_DICT_SET_FAILED, "dict set operation "
- "on %s for the key %s failed.", real_path, key);
- GF_FREE (value);
- goto out;
- }
-
- goto done;
- }
-
- have_val = _gf_false;
- memset (value_buf, '\0', XATTR_VAL_BUF_SIZE);
- size = sys_llistxattr (real_path, value_buf, XATTR_VAL_BUF_SIZE-1);
- if (size > 0) {
- have_val = _gf_true;
- } else {
- if (errno == ERANGE) {
- gf_msg (this->name, GF_LOG_INFO, errno,
- P_MSG_XATTR_FAILED,
- "listxattr failed due to overflow of buffer"
- " on %s ", real_path);
- size = sys_llistxattr (real_path, NULL, 0);
- }
- if (size == -1) {
- op_errno = errno;
- if ((errno == ENOTSUP) || (errno == ENOSYS)) {
- GF_LOG_OCCASIONALLY (gf_posix_xattr_enotsup_log,
- this->name, GF_LOG_WARNING,
- "Extended attributes not "
- "supported (try remounting"
- " brick with 'user_xattr' "
- "flag)");
- } else {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_XATTR_FAILED,
- "listxattr failed on %s", real_path);
- }
- goto out;
- }
- if (size == 0)
- goto done;
- }
- list = alloca (size);
- if (!list) {
- op_errno = errno;
- goto out;
- }
- if (have_val) {
- memcpy (list, value_buf, size);
- } else {
- size = sys_llistxattr (real_path, list, size);
- if (size < 0) {
- op_ret = -1;
- op_errno = errno;
- goto out;
- }
- }
- remaining_size = size;
- list_offset = 0;
- keybuffer = alloca (XATTR_KEY_BUF_SIZE);
- while (remaining_size > 0) {
- strncpy (keybuffer, list + list_offset, XATTR_KEY_BUF_SIZE-1);
- keybuffer[XATTR_KEY_BUF_SIZE-1] = '\0';
-
- ret = posix_handle_georep_xattrs (frame, keybuffer, NULL,
- _gf_false);
- if (ret == -1)
- goto ignore;
-
- if (posix_is_gfid2path_xattr (keybuffer)) {
- goto ignore;
- }
-
- memset (value_buf, '\0', XATTR_VAL_BUF_SIZE);
- have_val = _gf_false;
- size = sys_lgetxattr (real_path, keybuffer, value_buf,
- XATTR_VAL_BUF_SIZE-1);
- if (size >= 0) {
- have_val = _gf_true;
- } else {
- if (errno == ERANGE) {
- gf_msg (this->name, GF_LOG_INFO, op_errno,
- P_MSG_XATTR_FAILED,
- "getxattr failed due to overflow of"
- " buffer on %s: %s ", real_path,
- keybuffer);
- size = sys_lgetxattr (real_path, keybuffer,
- NULL, 0);
- }
- if (size == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_XATTR_FAILED, "getxattr failed on"
- " %s: key = %s ", real_path, keybuffer);
- goto out;
- }
- }
- value = GF_CALLOC (size + 1, sizeof(char),
- gf_posix_mt_char);
- if (!value) {
- op_errno = errno;
- goto out;
- }
- if (have_val) {
- memcpy (value, value_buf, size);
- } else {
- size = sys_lgetxattr (real_path, keybuffer, value, size);
- if (size == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_XATTR_FAILED, "getxattr failed on"
- " %s: key = %s ", real_path, keybuffer);
- GF_FREE (value);
- goto out;
- }
- }
- value [size] = '\0';
-#ifdef GF_DARWIN_HOST_OS
- /* The protocol expect namespace for now */
- char *newkey = NULL;
- gf_add_prefix (XATTR_USER_PREFIX, keybuffer, &newkey);
- strncpy (keybuffer, newkey, sizeof(keybuffer));
- GF_FREE (newkey);
-#endif
- op_ret = dict_set_dynptr (dict, keybuffer, value, size);
- if (op_ret < 0) {
- op_errno = -op_ret;
- gf_msg (this->name, GF_LOG_ERROR, op_errno,
- P_MSG_DICT_SET_FAILED, "dict set operation "
- "on %s for the key %s failed.", real_path,
- keybuffer);
- GF_FREE (value);
- goto out;
- }
-
-ignore:
- remaining_size -= strlen (keybuffer) + 1;
- list_offset += strlen (keybuffer) + 1;
-
- } /* while (remaining_size > 0) */
-
-done:
- op_ret = size;
-
- if (dict) {
- dict_del (dict, GFID_XATTR_KEY);
- dict_del (dict, GF_XATTR_VOL_ID_KEY);
- }
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (getxattr, frame, op_ret, op_errno, dict, NULL);
-
- if (dict) {
- dict_unref (dict);
- }
-
- return 0;
-}
-
-
-int32_t
-posix_fgetxattr (call_frame_t *frame, xlator_t *this,
- fd_t *fd, const char *name, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = EINVAL;
- struct posix_fd * pfd = NULL;
- int _fd = -1;
- int32_t list_offset = 0;
- ssize_t size = 0;
- size_t remaining_size = 0;
- char * value = NULL;
- char * list = NULL;
- dict_t * dict = NULL;
- int ret = -1;
- char key[4096] = {0,};
- char *value_buf = NULL;
- gf_boolean_t have_val = _gf_false;
-
- DECLARE_OLD_FS_ID_VAR;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- op_ret = -1;
- gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
- "pfd is NULL from fd=%p", fd);
- goto out;
- }
-
- _fd = pfd->fd;
-
- /* Get the total size */
- dict = dict_new ();
- if (!dict) {
- op_ret = -1;
- op_errno = ENOMEM;
- goto out;
- }
-
- if (name && !strcmp (name, GLUSTERFS_OPEN_FD_COUNT)) {
- ret = dict_set_uint32 (dict, (char *)name, 1);
- if (ret < 0) {
- op_ret = -1;
- size = -1;
- op_errno = ENOMEM;
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_DICT_SET_FAILED, "Failed to set "
- "dictionary value for %s", name);
- goto out;
- }
- goto done;
- }
-
- if (name && strncmp (name, GLUSTERFS_GET_OBJECT_SIGNATURE,
- strlen (GLUSTERFS_GET_OBJECT_SIGNATURE)) == 0) {
- op_ret = posix_fdget_objectsignature (_fd, dict);
- if (op_ret < 0) {
- gf_msg (this->name, GF_LOG_ERROR, 0, 0,
- "posix_fdget_objectsignature failed");
- op_errno = -op_ret;
- op_ret = -1;
- size = -1;
- goto out;
- }
-
- goto done;
- }
-
- /* here allocate value_buf of 8192 bytes to avoid one extra getxattr
- call,If buffer size is small to hold the xattr result then it will
- allocate a new buffer value of required size and call getxattr again
- */
- value_buf = alloca (XATTR_VAL_BUF_SIZE);
- memset (value_buf, '\0', XATTR_VAL_BUF_SIZE);
-
- if (name) {
- strncpy (key, name, sizeof(key));
-#ifdef GF_DARWIN_HOST_OS
- struct posix_private *priv = NULL;
- priv = this->private;
- if (priv->xattr_user_namespace == XATTR_STRIP) {
- char *newkey = NULL;
- gf_add_prefix (XATTR_USER_PREFIX, key, &newkey);
- strncpy (key, newkey, sizeof(key));
- GF_FREE (newkey);
- }
-#endif
- size = sys_fgetxattr (_fd, key, value_buf,
- XATTR_VAL_BUF_SIZE-1);
- if (size >= 0) {
- have_val = _gf_true;
- } else {
- if (errno == ERANGE) {
- gf_msg (this->name, GF_LOG_INFO, errno,
- P_MSG_XATTR_FAILED,
- "fgetxattr failed due to overflow of"
- "buffer on %s ", key);
- size = sys_fgetxattr (_fd, key, NULL, 0);
- }
- if (size == -1) {
- op_errno = errno;
- if (errno == ENODATA || errno == ENOATTR) {
- gf_msg_debug (this->name, 0, "fgetxattr"
- " failed on key %s (%s)",
- key, strerror (op_errno));
- } else {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_XATTR_FAILED, "fgetxattr"
- " failed on key %s", key);
- }
- goto done;
- }
- }
- value = GF_CALLOC (size + 1, sizeof(char), gf_posix_mt_char);
- if (!value) {
- op_ret = -1;
- op_errno = ENOMEM;
- goto out;
- }
- if (have_val) {
- memcpy (value, value_buf, size);
- } else {
- size = sys_fgetxattr (_fd, key, value, size);
- if (size == -1) {
- op_ret = -1;
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_XATTR_FAILED, "fgetxattr"
- " failed on fd %p for the key %s ",
- fd, key);
- GF_FREE (value);
- goto out;
- }
- }
-
- value [size] = '\0';
- op_ret = dict_set_dynptr (dict, key, value, size);
- if (op_ret < 0) {
- op_errno = -op_ret;
- op_ret = -1;
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_DICT_SET_FAILED, "dict set operation "
- "on key %s failed", key);
- GF_FREE (value);
- goto out;
- }
-
- goto done;
- }
- memset (value_buf, '\0', XATTR_VAL_BUF_SIZE);
- size = sys_flistxattr (_fd, value_buf, XATTR_VAL_BUF_SIZE-1);
- if (size > 0) {
- have_val = _gf_true;
- } else {
- if (errno == ERANGE) {
- gf_msg (this->name, GF_LOG_INFO, errno,
- P_MSG_XATTR_FAILED,
- "listxattr failed due to overflow of buffer"
- " on %p ", fd);
- size = sys_flistxattr (_fd, NULL, 0);
- }
- if (size == -1) {
- op_ret = -1;
- op_errno = errno;
- if ((errno == ENOTSUP) || (errno == ENOSYS)) {
- GF_LOG_OCCASIONALLY (gf_posix_xattr_enotsup_log,
- this->name, GF_LOG_WARNING,
- "Extended attributes not "
- "supported (try remounting "
- "brick with 'user_xattr' flag)");
- } else {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_XATTR_FAILED, "listxattr failed "
- "on %p:", fd);
- }
- goto out;
- }
- if (size == 0)
- goto done;
- }
- list = alloca (size + 1);
- if (!list) {
- op_ret = -1;
- op_errno = ENOMEM;
- goto out;
- }
- if (have_val)
- memcpy (list, value_buf, size);
- else
- size = sys_flistxattr (_fd, list, size);
-
- remaining_size = size;
- list_offset = 0;
- while (remaining_size > 0) {
- if(*(list + list_offset) == '\0')
- break;
-
- strncpy (key, list + list_offset, sizeof(key));
- memset (value_buf, '\0', XATTR_VAL_BUF_SIZE);
- have_val = _gf_false;
- size = sys_fgetxattr (_fd, key, value_buf,
- XATTR_VAL_BUF_SIZE-1);
- if (size >= 0) {
- have_val = _gf_true;
- } else {
- if (errno == ERANGE) {
- gf_msg (this->name, GF_LOG_INFO, errno,
- P_MSG_XATTR_FAILED,
- "fgetxattr failed due to overflow of buffer"
- " on fd %p: for the key %s ", fd, key);
- size = sys_fgetxattr (_fd, key, NULL, 0);
- }
- if (size == -1) {
- op_ret = -1;
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_XATTR_FAILED, "fgetxattr failed "
- "on fd %p for the key %s ", fd, key);
- break;
- }
- }
- value = GF_CALLOC (size + 1, sizeof(char),
- gf_posix_mt_char);
- if (!value) {
- op_ret = -1;
- op_errno = errno;
- goto out;
- }
- if (have_val) {
- memcpy (value, value_buf, size);
- } else {
- size = sys_fgetxattr (_fd, key, value, size);
- if (size == -1) {
- op_ret = -1;
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_XATTR_FAILED, "fgetxattr failed o"
- "n the fd %p for the key %s ", fd, key);
- GF_FREE (value);
- break;
- }
- }
- value [size] = '\0';
-
- op_ret = dict_set_dynptr (dict, key, value, size);
- if (op_ret) {
- op_errno = -op_ret;
- op_ret = -1;
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_DICT_SET_FAILED, "dict set operation "
- "failed on key %s", key);
- GF_FREE (value);
- goto out;
- }
- remaining_size -= strlen (key) + 1;
- list_offset += strlen (key) + 1;
-
- } /* while (remaining_size > 0) */
-
-done:
- op_ret = size;
-
- if (dict) {
- dict_del (dict, GFID_XATTR_KEY);
- dict_del (dict, GF_XATTR_VOL_ID_KEY);
- }
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (fgetxattr, frame, op_ret, op_errno, dict, NULL);
-
- if (dict)
- dict_unref (dict);
-
- return 0;
-}
-
-static int
-_handle_fsetxattr_keyvalue_pair (dict_t *d, char *k, data_t *v,
- void *tmp)
-{
- posix_xattr_filler_t *filler = NULL;
-
- filler = tmp;
-
- return posix_fhandle_pair (filler->this, filler->fdnum, k, v,
- filler->flags, filler->stbuf);
-}
-
-int32_t
-posix_fsetxattr (call_frame_t *frame, xlator_t *this,
- fd_t *fd, dict_t *dict, int flags, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- struct posix_fd *pfd = NULL;
- int _fd = -1;
- int ret = -1;
- struct iatt stbuf = {0,};
- dict_t *xattr = NULL;
- posix_xattr_filler_t filler = {0,};
- struct posix_private *priv = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
- VALIDATE_OR_GOTO (dict, out);
-
- priv = this->private;
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
- "pfd is NULL from fd=%p", fd);
- goto out;
- }
- _fd = pfd->fd;
-
- ret = posix_fdstat (this, pfd->fd, &stbuf);
- if (ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, op_errno,
- P_MSG_FSTAT_FAILED, "fsetxattr (fstat)"
- "failed on fd=%p", fd);
- goto out;
- }
-
- dict_del (dict, GFID_XATTR_KEY);
- dict_del (dict, GF_XATTR_VOL_ID_KEY);
-
- filler.fdnum = _fd;
- filler.this = this;
- filler.stbuf = &stbuf;
-#ifdef GF_DARWIN_HOST_OS
- filler.flags = map_xattr_flags(flags);
-#else
- filler.flags = flags;
-#endif
- op_ret = dict_foreach (dict, _handle_fsetxattr_keyvalue_pair,
- &filler);
- if (op_ret < 0) {
- op_errno = -op_ret;
- op_ret = -1;
- }
-
- if (!ret && xdata && dict_get (xdata, GLUSTERFS_DURABLE_OP)) {
- op_ret = sys_fsync (_fd);
- if (op_ret < 0) {
- op_ret = -1;
- op_errno = errno;
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_DURABILITY_REQ_NOT_SATISFIED,
- "could not satisfy durability request: "
- "reason ");
- }
- }
-
- if (xdata && dict_get (xdata, DHT_IATT_IN_XDATA_KEY)) {
- ret = posix_fdstat (this, pfd->fd, &stbuf);
- if (ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, op_errno,
- P_MSG_XATTR_FAILED, "fsetxattr (fstat)"
- "failed on fd=%p", fd);
- goto out;
- }
-
- xattr = dict_new ();
- if (!xattr)
- goto out;
- ret = posix_set_iatt_in_dict (xattr, &stbuf);
- }
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (fsetxattr, frame, op_ret, op_errno, xattr);
-
- if (xattr)
- dict_unref (xattr);
-
- return 0;
-}
-
-int
-_posix_remove_xattr (dict_t *dict, char *key, data_t *value, void *data)
-{
- int32_t op_ret = 0;
- xlator_t *this = NULL;
- posix_xattr_filler_t *filler = NULL;
-
- filler = (posix_xattr_filler_t *) data;
- this = filler->this;
-#ifdef GF_DARWIN_HOST_OS
- struct posix_private *priv = NULL;
- priv = (struct posix_private *) this->private;
- char *newkey = NULL;
- if (priv->xattr_user_namespace == XATTR_STRIP) {
- gf_remove_prefix (XATTR_USER_PREFIX, key, &newkey);
- gf_msg_debug ("remove_xattr", 0, "key %s => %s" , key,
- newkey);
- key = newkey;
- }
-#endif
- /* Bulk remove xattr is internal fop in gluster. Some of the xattrs may
- * have special behavior. Ex: removexattr("posix.system_acl_access"),
- * removes more than one xattr on the file that could be present in the
- * bulk-removal request. Removexattr of these deleted xattrs will fail
- * with either ENODATA/ENOATTR. Since all this fop cares is removal of the
- * xattrs in bulk-remove request and if they are already deleted, it can be
- * treated as success.
- */
-
- if (filler->real_path)
- op_ret = sys_lremovexattr (filler->real_path, key);
- else
- op_ret = sys_fremovexattr (filler->fdnum, key);
-
- if (op_ret == -1) {
- if (errno == ENODATA || errno == ENOATTR)
- op_ret = 0;
- }
-
- if (op_ret == -1) {
- filler->op_errno = errno;
- if (errno != ENOATTR && errno != ENODATA && errno != EPERM) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_XATTR_FAILED, "removexattr failed on "
- "file/dir %s with gfid: %s (for %s)",
- filler->real_path?filler->real_path:"",
- uuid_utoa (filler->inode->gfid), key);
- }
- }
-#ifdef GF_DARWIN_HOST_OS
- GF_FREE(newkey);
-#endif
- return op_ret;
-}
-
-int
-posix_common_removexattr (call_frame_t *frame, loc_t *loc, fd_t *fd,
- const char *name, dict_t *xdata, int *op_errno,
- dict_t **xdata_rsp)
-{
- gf_boolean_t bulk_removexattr = _gf_false;
- gf_boolean_t disallow = _gf_false;
- char *real_path = NULL;
- struct posix_fd *pfd = NULL;
- int op_ret = 0;
- struct iatt stbuf = {0};
- int ret = 0;
- int _fd = -1;
- xlator_t *this = frame->this;
- inode_t *inode = NULL;
- posix_xattr_filler_t filler = {0};
-
- DECLARE_OLD_FS_ID_VAR;
-
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- if (loc) {
- MAKE_INODE_HANDLE (real_path, this, loc, NULL);
- if (!real_path) {
- op_ret = -1;
- *op_errno = ESTALE;
- goto out;
- }
- inode = loc->inode;
- } else {
- op_ret = posix_fd_ctx_get (fd, this, &pfd, op_errno);
- if (op_ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, *op_errno,
- P_MSG_PFD_NULL, "pfd is NULL from fd=%p", fd);
- goto out;
- }
- _fd = pfd->fd;
- inode = fd->inode;
- }
-
- if (posix_is_gfid2path_xattr (name)) {
- op_ret = -1;
- *op_errno = ENOATTR;
- goto out;
- }
-
- if (gf_get_index_by_elem (disallow_removexattrs, (char *)name) >= 0) {
- gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_XATTR_NOT_REMOVED,
- "Remove xattr called on %s for file/dir %s with gfid: "
- "%s", name, real_path?real_path:"",
- uuid_utoa(inode->gfid));
- op_ret = -1;
- *op_errno = EPERM;
- goto out;
- } else if (posix_is_bulk_removexattr ((char *)name, xdata)) {
- bulk_removexattr = _gf_true;
- (void) dict_has_key_from_array (xdata, disallow_removexattrs,
- &disallow);
- if (disallow) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_XATTR_NOT_REMOVED,
- "Bulk removexattr has keys that shouldn't be "
- "removed for file/dir %s with gfid: %s",
- real_path?real_path:"", uuid_utoa(inode->gfid));
- op_ret = -1;
- *op_errno = EPERM;
- goto out;
- }
- }
-
- if (bulk_removexattr) {
- filler.real_path = real_path;
- filler.this = this;
- filler.fdnum = _fd;
- filler.inode = inode;
- op_ret = dict_foreach (xdata, _posix_remove_xattr, &filler);
- if (op_ret) {
- *op_errno = filler.op_errno;
- goto out;
- }
- } else {
- if (loc)
- op_ret = sys_lremovexattr (real_path, name);
- else
- op_ret = sys_fremovexattr (_fd, name);
- if (op_ret == -1) {
- *op_errno = errno;
- if (*op_errno != ENOATTR && *op_errno != ENODATA &&
- *op_errno != EPERM) {
- gf_msg (this->name, GF_LOG_ERROR, *op_errno,
- P_MSG_XATTR_FAILED,
- "removexattr on %s with gfid %s "
- "(for %s)", real_path,
- uuid_utoa (inode->gfid), name);
- }
- goto out;
- }
- }
-
- if (xdata && dict_get (xdata, DHT_IATT_IN_XDATA_KEY)) {
- if (loc)
- ret = posix_pstat(this, loc->gfid, real_path, &stbuf);
- else
- ret = posix_fdstat (this, _fd, &stbuf);
- if (ret)
- goto out;
- *xdata_rsp = dict_new();
- if (!*xdata_rsp)
- goto out;
-
- ret = posix_set_iatt_in_dict (*xdata_rsp, &stbuf);
- }
- op_ret = 0;
-out:
- SET_TO_OLD_FS_ID ();
- return op_ret;
-}
-
-int32_t
-posix_removexattr (call_frame_t *frame, xlator_t *this,
- loc_t *loc, const char *name, dict_t *xdata)
-{
- int op_ret = 0;
- int op_errno = 0;
- dict_t *xdata_rsp = NULL;
-
- op_ret = posix_common_removexattr (frame, loc, NULL, name, xdata,
- &op_errno, &xdata_rsp);
- STACK_UNWIND_STRICT (removexattr, frame, op_ret, op_errno, xdata_rsp);
-
- if (xdata_rsp)
- dict_unref (xdata_rsp);
-
- return 0;
-}
-
-int32_t
-posix_fremovexattr (call_frame_t *frame, xlator_t *this,
- fd_t *fd, const char *name, dict_t *xdata)
-{
- int32_t op_ret = 0;
- int32_t op_errno = 0;
- dict_t *xdata_rsp = NULL;
-
- op_ret = posix_common_removexattr (frame, NULL, fd, name, xdata,
- &op_errno, &xdata_rsp);
- STACK_UNWIND_STRICT (fremovexattr, frame, op_ret, op_errno, xdata_rsp);
-
- if (xdata_rsp)
- dict_unref (xdata_rsp);
-
- return 0;
-}
-
-
-int32_t
-posix_fsyncdir (call_frame_t *frame, xlator_t *this,
- fd_t *fd, int datasync, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- int ret = -1;
- struct posix_fd *pfd = NULL;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
- "pfd is NULL, fd=%p", fd);
- goto out;
- }
-
- op_ret = 0;
-
-out:
- STACK_UNWIND_STRICT (fsyncdir, frame, op_ret, op_errno, NULL);
-
- return 0;
-}
-
-
-void
-posix_print_xattr (dict_t *this,
- char *key,
- data_t *value,
- void *data)
-{
- gf_msg_debug ("posix", 0,
- "(key/val) = (%s/%d)", key, data_to_int32 (value));
-}
-
-
-/**
- * add_array - add two arrays of 32-bit numbers (stored in network byte order)
- * dest = dest + src
- * @count: number of 32-bit numbers
- * FIXME: handle overflow
- */
-
-static void
-__add_array (int32_t *dest, int32_t *src, int count)
-{
- int i = 0;
- int32_t destval = 0;
- for (i = 0; i < count; i++) {
- destval = ntoh32 (dest[i]);
- dest[i] = hton32 (destval + ntoh32 (src[i]));
- }
-}
-
-static void
-__add_long_array (int64_t *dest, int64_t *src, int count)
-{
- int i = 0;
- for (i = 0; i < count; i++) {
- dest[i] = hton64 (ntoh64 (dest[i]) + ntoh64 (src[i]));
- }
-}
-
-
-/* functions:
- __add_array_with_default
- __add_long_array_with_default
-
- xattrop type:
- GF_XATTROP_ADD_ARRAY_WITH_DEFAULT
- GF_XATTROP_ADD_ARRAY64_WITH_DEFAULT
-
- These operations are similar to 'GF_XATTROP_ADD_ARRAY',
- except that it adds a default value if xattr is missing
- or its value is zero on disk.
-
- One use-case of this operation is in inode-quota.
- When a new directory is created, its default dir_count
- should be set to 1. So when a xattrop performed setting
- inode-xattrs, it should account initial dir_count
- 1 if the xattrs are not present
-
- Here is the usage of this operation
-
- value required in xdata for each key
- struct array {
- int32_t newvalue_1;
- int32_t newvalue_2;
- ...
- int32_t newvalue_n;
- int32_t default_1;
- int32_t default_2;
- ...
- int32_t default_n;
- };
-
- or
-
- struct array {
- int32_t value_1;
- int32_t value_2;
- ...
- int32_t value_n;
- } data[2];
- fill data[0] with new value to add
- fill data[1] with default value
-
- xattrop GF_XATTROP_ADD_ARRAY_WITH_DEFAULT
- for i from 1 to n
- {
- if (xattr (dest_i) is zero or not set in the disk)
- dest_i = newvalue_i + default_i
- else
- dest_i = dest_i + newvalue_i
- }
-
- value in xdata after xattrop is successful
- struct array {
- int32_t dest_1;
- int32_t dest_2;
- ...
- int32_t dest_n;
- };
-*/
-static void
-__add_array_with_default (int32_t *dest, int32_t *src, int count)
-{
- int i = 0;
- int32_t destval = 0;
-
- for (i = 0; i < count; i++) {
- destval = ntoh32 (dest[i]);
- if (destval == 0)
- dest[i] = hton32 (ntoh32 (src[i]) +
- ntoh32 (src[count + i]));
- else
- dest[i] = hton32 (destval + ntoh32 (src[i]));
- }
-}
-
-static void
-__add_long_array_with_default (int64_t *dest, int64_t *src, int count)
-{
- int i = 0;
- int64_t destval = 0;
-
- for (i = 0; i < count; i++) {
- destval = ntoh64 (dest[i]);
- if (destval == 0)
- dest[i] = hton64 (ntoh64 (src[i]) +
- ntoh64 (src[i + count]));
- else
- dest[i] = hton64 (destval + ntoh64 (src[i]));
- }
-}
-
-static int
-_posix_handle_xattr_keyvalue_pair (dict_t *d, char *k, data_t *v,
- void *tmp)
-{
- int size = 0;
- int count = 0;
- int op_ret = 0;
- int op_errno = 0;
- gf_xattrop_flags_t optype = 0;
- char *array = NULL;
- char *dst_data = NULL;
- inode_t *inode = NULL;
- xlator_t *this = NULL;
- posix_xattr_filler_t *filler = NULL;
- posix_inode_ctx_t *ctx = NULL;
-
- filler = tmp;
-
- optype = (gf_xattrop_flags_t)(filler->flags);
- this = filler->this;
- inode = filler->inode;
- count = v->len;
- if (optype == GF_XATTROP_ADD_ARRAY_WITH_DEFAULT ||
- optype == GF_XATTROP_ADD_ARRAY64_WITH_DEFAULT)
- count = count / 2;
-
- array = GF_CALLOC (count, sizeof (char), gf_posix_mt_char);
-
-#ifdef GF_DARWIN_HOST_OS
- struct posix_private *priv = NULL;
- priv = this->private;
- if (priv->xattr_user_namespace == XATTR_STRIP) {
- if (strncmp(k, XATTR_USER_PREFIX, XATTR_USER_PREFIX_LEN) == 0) {
- k += XATTR_USER_PREFIX_LEN;
- }
- }
-#endif
- op_ret = posix_inode_ctx_get_all (inode, this, &ctx);
- if (op_ret < 0) {
- op_errno = ENOMEM;
- goto out;
- }
-
- pthread_mutex_lock (&ctx->xattrop_lock);
- {
- if (filler->real_path) {
- size = sys_lgetxattr (filler->real_path, k,
- (char *)array, count);
- } else {
- size = sys_fgetxattr (filler->fdnum, k, (char *)array,
- count);
- }
-
- op_errno = errno;
- if ((size == -1) && (op_errno != ENODATA) &&
- (op_errno != ENOATTR)) {
- if (op_errno == ENOTSUP) {
- GF_LOG_OCCASIONALLY(gf_posix_xattr_enotsup_log,
- this->name, GF_LOG_WARNING,
- "Extended attributes not "
- "supported by filesystem");
- } else if (op_errno != ENOENT ||
- !posix_special_xattr (marker_xattrs,
- k)) {
- if (filler->real_path)
- gf_msg (this->name, fop_log_level (GF_FOP_XATTROP,
- op_errno), op_errno, P_MSG_XATTR_FAILED,
- "getxattr failed on %s while "
- "doing xattrop: Key:%s ",
- filler->real_path, k);
- else
- gf_msg (this->name, GF_LOG_ERROR,
- op_errno, P_MSG_XATTR_FAILED,
- "fgetxattr failed on gfid=%s "
- "while doing xattrop: "
- "Key:%s (%s)",
- uuid_utoa (filler->inode->gfid),
- k, strerror (op_errno));
- }
-
- op_ret = -1;
- goto unlock;
- }
-
- if (size == -1 && optype == GF_XATTROP_GET_AND_SET) {
- GF_FREE (array);
- array = NULL;
- }
-
- /* We only write back the xattr if it has been really modified
- * (i.e. v->data is not all 0's). Otherwise we return its value
- * but we don't update anything.
- *
- * If the xattr does not exist, a value of all 0's is returned
- * without creating it. */
- size = count;
- if (optype != GF_XATTROP_GET_AND_SET &&
- mem_0filled(v->data, v->len) == 0)
- goto unlock;
-
- dst_data = array;
- switch (optype) {
-
- case GF_XATTROP_ADD_ARRAY:
- __add_array ((int32_t *) array,
- (int32_t *) v->data, count / 4);
- break;
-
- case GF_XATTROP_ADD_ARRAY64:
- __add_long_array ((int64_t *) array,
- (int64_t *) v->data,
- count / 8);
- break;
-
- case GF_XATTROP_ADD_ARRAY_WITH_DEFAULT:
- __add_array_with_default ((int32_t *) array,
- (int32_t *) v->data,
- count / 4);
- break;
-
- case GF_XATTROP_ADD_ARRAY64_WITH_DEFAULT:
- __add_long_array_with_default ((int64_t *) array,
- (int64_t *) v->data,
- count / 8);
- break;
-
- case GF_XATTROP_GET_AND_SET:
- dst_data = v->data;
- break;
-
- default:
- gf_msg (this->name, GF_LOG_ERROR, EINVAL,
- P_MSG_UNKNOWN_OP, "Unknown xattrop type (%d)"
- " on %s. Please send a bug report to "
- "gluster-devel@gluster.org", optype,
- filler->real_path);
- op_ret = -1;
- op_errno = EINVAL;
- goto unlock;
- }
-
- if (filler->real_path) {
- size = sys_lsetxattr (filler->real_path, k,
- dst_data, count, 0);
- } else {
- size = sys_fsetxattr (filler->fdnum, k,
- (char *)dst_data,
- count, 0);
- }
- op_errno = errno;
- }
-unlock:
- pthread_mutex_unlock (&ctx->xattrop_lock);
-
- if (op_ret == -1)
- goto out;
-
- if (size == -1) {
- if (filler->real_path)
- gf_msg (this->name, GF_LOG_ERROR, op_errno,
- P_MSG_XATTR_FAILED, "setxattr failed on %s "
- "while doing xattrop: key=%s",
- filler->real_path, k);
- else
- gf_msg (this->name, GF_LOG_ERROR, op_errno,
- P_MSG_XATTR_FAILED,
- "fsetxattr failed on gfid=%s while doing "
- "xattrop: key=%s (%s)",
- uuid_utoa (filler->inode->gfid),
- k, strerror (op_errno));
- op_ret = -1;
- goto out;
- } else if (array) {
- op_ret = dict_set_bin (filler->xattr, k, array, count);
- if (op_ret) {
- if (filler->real_path)
- gf_msg_debug (this->name, 0,
- "dict_set_bin failed (path=%s): "
- "key=%s (%s)", filler->real_path,
- k, strerror (-size));
- else
- gf_msg_debug (this->name, 0,
- "dict_set_bin failed (gfid=%s): "
- "key=%s (%s)",
- uuid_utoa (filler->inode->gfid),
- k, strerror (-size));
-
- op_ret = -1;
- op_errno = EINVAL;
- GF_FREE (array);
- goto out;
- }
- array = NULL;
- }
-
-out:
- if (op_ret < 0)
- filler->op_errno = op_errno;
-
- if (array)
- GF_FREE (array);
-
- return op_ret;
-}
-
-/**
- * xattrop - xattr operations - for internal use by GlusterFS
- * @optype: ADD_ARRAY:
- * dict should contain:
- * "key" ==> array of 32-bit numbers
- */
-
-int
-do_xattrop (call_frame_t *frame, xlator_t *this, loc_t *loc, fd_t *fd,
- gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata)
-{
- int op_ret = 0;
- int op_errno = 0;
- int _fd = -1;
- char *real_path = NULL;
- struct posix_fd *pfd = NULL;
- inode_t *inode = NULL;
- posix_xattr_filler_t filler = {0,};
- dict_t *xattr_rsp = NULL;
- dict_t *xdata_rsp = NULL;
- struct iatt stbuf = {0};
- struct posix_private *priv = NULL;
-
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (xattr, out);
- VALIDATE_OR_GOTO (this, out);
-
- priv = this->private;
- DISK_SPACE_CHECK_AND_GOTO (frame, priv, xdata, op_ret, op_errno, out);
-
- if (fd) {
- op_ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (op_ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING,
- fop_log_level(GF_FOP_FXATTROP, op_errno),
- P_MSG_PFD_GET_FAILED, "failed to get pfd from"
- " fd=%p", fd);
- goto out;
- }
- _fd = pfd->fd;
- }
-
- if (loc && !gf_uuid_is_null (loc->gfid)) {
- MAKE_INODE_HANDLE (real_path, this, loc, NULL);
- if (!real_path) {
- op_ret = -1;
- op_errno = ESTALE;
- goto out;
- }
- }
-
- if (real_path) {
- inode = loc->inode;
- } else if (fd) {
- inode = fd->inode;
- }
-
- xattr_rsp = dict_new ();
- if (xattr_rsp == NULL) {
- op_ret = -1;
- op_errno = ENOMEM;
- goto out;
- }
-
- filler.this = this;
- filler.fdnum = _fd;
- filler.real_path = real_path;
- filler.flags = (int)optype;
- filler.inode = inode;
- filler.xattr = xattr_rsp;
-
- op_ret = dict_foreach (xattr, _posix_handle_xattr_keyvalue_pair,
- &filler);
- op_errno = filler.op_errno;
- if (op_ret < 0)
- goto out;
-
- if (!xdata)
- goto out;
-
- if (fd) {
- op_ret = posix_fdstat (this, _fd, &stbuf);
- } else {
- op_ret = posix_pstat (this, inode->gfid, real_path,
- &stbuf);
- }
- if (op_ret < 0) {
- op_errno = errno;
- goto out;
- }
- xdata_rsp = posix_xattr_fill (this, real_path, loc, fd, _fd,
- xdata, &stbuf);
- if (!xdata_rsp) {
- op_ret = -1;
- op_errno = ENOMEM;
- }
-out:
-
- STACK_UNWIND_STRICT (xattrop, frame, op_ret, op_errno, xattr_rsp,
- xdata_rsp);
-
- if (xattr_rsp)
- dict_unref (xattr_rsp);
-
- if (xdata_rsp)
- dict_unref (xdata_rsp);
- return 0;
-}
-
-
-int
-posix_xattrop (call_frame_t *frame, xlator_t *this,
- loc_t *loc, gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata)
-{
- do_xattrop (frame, this, loc, NULL, optype, xattr, xdata);
- return 0;
-}
-
-
-int
-posix_fxattrop (call_frame_t *frame, xlator_t *this,
- fd_t *fd, gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata)
-{
- do_xattrop (frame, this, NULL, fd, optype, xattr, xdata);
- return 0;
-}
-
-int
-posix_access (call_frame_t *frame, xlator_t *this,
- loc_t *loc, int32_t mask, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- char *real_path = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (loc, out);
-
- MAKE_INODE_HANDLE (real_path, this, loc, NULL);
- if (!real_path) {
- op_ret = -1;
- op_errno = errno;
- goto out;
- }
-
- op_ret = sys_access (real_path, mask & 07);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_ACCESS_FAILED,
- "access failed on %s", real_path);
- goto out;
- }
- op_ret = 0;
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (access, frame, op_ret, op_errno, NULL);
- return 0;
-}
-
-
-int32_t
-posix_ftruncate (call_frame_t *frame, xlator_t *this,
- fd_t *fd, off_t offset, dict_t *xdata)
-{
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- int _fd = -1;
- struct iatt preop = {0,};
- struct iatt postop = {0,};
- struct posix_fd *pfd = NULL;
- int ret = -1;
- struct posix_private *priv = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
- "pfd is NULL, fd=%p", fd);
- goto out;
- }
-
- _fd = pfd->fd;
-
- op_ret = posix_fdstat (this, _fd, &preop);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
- "pre-operation fstat failed on fd=%p", fd);
- goto out;
- }
-
- op_ret = sys_ftruncate (_fd, offset);
-
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_TRUNCATE_FAILED,
- "ftruncate failed on fd=%p (%"PRId64"", fd, offset);
- goto out;
- }
-
- op_ret = posix_fdstat (this, _fd, &postop);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
- "post-operation fstat failed on fd=%p", fd);
- goto out;
- }
-
- op_ret = 0;
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (ftruncate, frame, op_ret, op_errno, &preop,
- &postop, NULL);
-
- return 0;
-}
-
-
-int32_t
-posix_fstat (call_frame_t *frame, xlator_t *this,
- fd_t *fd, dict_t *xdata)
-{
- int _fd = -1;
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- struct iatt buf = {0,};
- struct posix_fd *pfd = NULL;
- dict_t *xattr_rsp = NULL;
- int ret = -1;
- struct posix_private *priv = NULL;
-
- DECLARE_OLD_FS_ID_VAR;
- SET_FS_ID (frame->root->uid, frame->root->gid);
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- VALIDATE_OR_GOTO (priv, out);
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
- "pfd is NULL, fd=%p", fd);
- goto out;
- }
-
- _fd = pfd->fd;
-
- op_ret = posix_fdstat (this, _fd, &buf);
- if (op_ret == -1) {
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, errno, P_MSG_FSTAT_FAILED,
- "fstat failed on fd=%p", fd);
- goto out;
- }
-
- if (xdata)
- xattr_rsp = posix_xattr_fill (this, NULL, NULL, fd, _fd, xdata,
- &buf);
-
- op_ret = 0;
-
-out:
- SET_TO_OLD_FS_ID ();
-
- STACK_UNWIND_STRICT (fstat, frame, op_ret, op_errno, &buf, xattr_rsp);
- if (xattr_rsp)
- dict_unref (xattr_rsp);
- return 0;
-}
-
-int32_t
-posix_lease (call_frame_t *frame, xlator_t *this,
- loc_t *loc, struct gf_lease *lease, dict_t *xdata)
-{
- struct gf_lease nullease = {0, };
-
- gf_msg (this->name, GF_LOG_CRITICAL, EINVAL, P_MSG_LEASE_DISABLED,
- "\"features/leases\" translator is not loaded. You need"
- "to use it for proper functioning of your application");
-
- STACK_UNWIND_STRICT (lease, frame, -1, ENOSYS, &nullease, NULL);
- return 0;
-}
-
-static int gf_posix_lk_log;
-
-int32_t
-posix_lk (call_frame_t *frame, xlator_t *this,
- fd_t *fd, int32_t cmd, struct gf_flock *lock, dict_t *xdata)
-{
- struct gf_flock nullock = {0, };
-
- GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL,
- "\"features/locks\" translator is "
- "not loaded. You need to use it for proper "
- "functioning of your application.");
-
- STACK_UNWIND_STRICT (lk, frame, -1, ENOSYS, &nullock, NULL);
- return 0;
-}
-
-int32_t
-posix_inodelk (call_frame_t *frame, xlator_t *this,
- const char *volume, loc_t *loc, int32_t cmd,
- struct gf_flock *lock, dict_t *xdata)
-{
- GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL,
- "\"features/locks\" translator is "
- "not loaded. You need to use it for proper "
- "functioning of your application.");
-
- STACK_UNWIND_STRICT (inodelk, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-int32_t
-posix_finodelk (call_frame_t *frame, xlator_t *this,
- const char *volume, fd_t *fd, int32_t cmd,
- struct gf_flock *lock, dict_t *xdata)
-{
- GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL,
- "\"features/locks\" translator is "
- "not loaded. You need to use it for proper "
- "functioning of your application.");
-
- STACK_UNWIND_STRICT (finodelk, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-
-int32_t
-posix_entrylk (call_frame_t *frame, xlator_t *this,
- const char *volume, loc_t *loc, const char *basename,
- entrylk_cmd cmd, entrylk_type type, dict_t *xdata)
-{
- GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL,
- "\"features/locks\" translator is "
- "not loaded. You need to use it for proper "
- "functioning of your application.");
-
- STACK_UNWIND_STRICT (entrylk, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-int32_t
-posix_fentrylk (call_frame_t *frame, xlator_t *this,
- const char *volume, fd_t *fd, const char *basename,
- entrylk_cmd cmd, entrylk_type type, dict_t *xdata)
-{
- GF_LOG_OCCASIONALLY (gf_posix_lk_log, this->name, GF_LOG_CRITICAL,
- "\"features/locks\" translator is "
- "not loaded. You need to use it for proper "
- "functioning of your application.");
-
- STACK_UNWIND_STRICT (fentrylk, frame, -1, ENOSYS, NULL);
- return 0;
-}
-
-
-int
-posix_fill_readdir (fd_t *fd, DIR *dir, off_t off, size_t size,
- gf_dirent_t *entries, xlator_t *this, int32_t skip_dirs)
-{
- off_t in_case = -1;
- off_t last_off = 0;
- size_t filled = 0;
- int count = 0;
- int32_t this_size = -1;
- gf_dirent_t *this_entry = NULL;
- struct posix_fd *pfd = NULL;
- struct stat stbuf = {0,};
- char *hpath = NULL;
- int len = 0;
- int ret = 0;
- int op_errno = 0;
- struct dirent *entry = NULL;
- struct dirent scratch[2] = {{0,},};
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
- "pfd is NULL, fd=%p", fd);
- count = -1;
- errno = op_errno;
- goto out;
- }
-
- if (skip_dirs) {
- len = posix_handle_path (this, fd->inode->gfid, NULL, NULL, 0);
- if (len <= 0) {
- errno = ESTALE;
- count = -1;
- goto out;
- }
- hpath = alloca (len + 256); /* NAME_MAX */
-
- if (posix_handle_path (this, fd->inode->gfid, NULL, hpath,
- len) <= 0) {
- errno = ESTALE;
- count = -1;
- goto out;
- }
-
- len = strlen (hpath);
- hpath[len] = '/';
- }
-
- if (!off) {
- rewinddir (dir);
- } else {
- seekdir (dir, off);
-#ifndef GF_LINUX_HOST_OS
- if ((u_long)telldir(dir) != off && off != pfd->dir_eof) {
- gf_msg (THIS->name, GF_LOG_ERROR, EINVAL,
- P_MSG_DIR_OPERATION_FAILED,
- "seekdir(0x%llx) failed on dir=%p: "
- "Invalid argument (offset reused from "
- "another DIR * structure?)", off, dir);
- errno = EINVAL;
- count = -1;
- goto out;
- }
-#endif /* GF_LINUX_HOST_OS */
- }
-
- while (filled <= size) {
- in_case = (u_long)telldir (dir);
-
- if (in_case == -1) {
- gf_msg (THIS->name, GF_LOG_ERROR, errno,
- P_MSG_DIR_OPERATION_FAILED,
- "telldir failed on dir=%p", dir);
- goto out;
- }
-
- errno = 0;
-
- entry = sys_readdir (dir, scratch);
-
- if (!entry || errno != 0) {
- if (errno == EBADF) {
- gf_msg (THIS->name, GF_LOG_WARNING, errno,
- P_MSG_DIR_OPERATION_FAILED,
- "readdir failed on dir=%p",
- dir);
- goto out;
- }
- break;
- }
-
-#ifdef __NetBSD__
- /*
- * NetBSD with UFS1 backend uses backing files for
- * extended attributes. They can be found in a
- * .attribute file located at the root of the filesystem
- * We hide it to glusterfs clients, since chaos will occur
- * when the cluster/dht xlator decides to distribute
- * exended attribute backing file across storage servers.
- */
- if (__is_root_gfid (fd->inode->gfid) == 0
- && (!strcmp(entry->d_name, ".attribute")))
- continue;
-#endif /* __NetBSD__ */
-
- if (__is_root_gfid (fd->inode->gfid)
- && (!strcmp (GF_HIDDEN_PATH, entry->d_name))) {
- continue;
- }
-
- if (skip_dirs) {
- if (DT_ISDIR (entry->d_type)) {
- continue;
- } else if (hpath) {
- strcpy (&hpath[len+1], entry->d_name);
- ret = sys_lstat (hpath, &stbuf);
- if (!ret && S_ISDIR (stbuf.st_mode))
- continue;
- }
- }
-
- this_size = max (sizeof (gf_dirent_t),
- sizeof (gfs3_dirplist))
- + strlen (entry->d_name) + 1;
-
- if (this_size + filled > size) {
- seekdir (dir, in_case);
-#ifndef GF_LINUX_HOST_OS
- if ((u_long)telldir(dir) != in_case &&
- in_case != pfd->dir_eof) {
- gf_msg (THIS->name, GF_LOG_ERROR, EINVAL,
- P_MSG_DIR_OPERATION_FAILED,
- "seekdir(0x%llx) failed on dir=%p: "
- "Invalid argument (offset reused from "
- "another DIR * structure?)",
- in_case, dir);
- errno = EINVAL;
- count = -1;
- goto out;
- }
-#endif /* GF_LINUX_HOST_OS */
- break;
- }
-
- this_entry = gf_dirent_for_name (entry->d_name);
-
- if (!this_entry) {
- gf_msg (THIS->name, GF_LOG_ERROR, errno,
- P_MSG_GF_DIRENT_CREATE_FAILED,
- "could not create "
- "gf_dirent for entry %s", entry->d_name);
- goto out;
- }
- /*
- * we store the offset of next entry here, which is
- * probably not intended, but code using syncop_readdir()
- * (glfs-heal.c, afr-self-heald.c, pump.c) rely on it
- * for directory read resumption.
- */
- last_off = (u_long)telldir(dir);
- this_entry->d_off = last_off;
- this_entry->d_ino = entry->d_ino;
- this_entry->d_type = entry->d_type;
-
- list_add_tail (&this_entry->list, &entries->list);
-
- filled += this_size;
- count ++;
- }
-
- if ((!sys_readdir (dir, scratch) && (errno == 0))) {
- /* Indicate EOF */
- errno = ENOENT;
- /* Remember EOF offset for later detection */
- pfd->dir_eof = (u_long)last_off;
- }
-out:
- return count;
-}
-
-dict_t *
-posix_entry_xattr_fill (xlator_t *this, inode_t *inode,
- fd_t *fd, char *entry_path, dict_t *dict,
- struct iatt *stbuf)
-{
- loc_t tmp_loc = {0,};
-
- /* if we don't send the 'loc', open-fd-count be a problem. */
- tmp_loc.inode = inode;
-
- return posix_xattr_fill (this, entry_path, &tmp_loc, NULL, -1, dict,
- stbuf);
-
-}
-
-
-#ifdef _DIRENT_HAVE_D_TYPE
-static int
-posix_d_type_from_ia_type (ia_type_t type)
-{
- switch (type) {
- case IA_IFDIR: return DT_DIR;
- case IA_IFCHR: return DT_CHR;
- case IA_IFBLK: return DT_BLK;
- case IA_IFIFO: return DT_FIFO;
- case IA_IFLNK: return DT_LNK;
- case IA_IFREG: return DT_REG;
- case IA_IFSOCK: return DT_SOCK;
- default: return DT_UNKNOWN;
- }
-}
-#endif
-
-
-int
-posix_readdirp_fill (xlator_t *this, fd_t *fd, gf_dirent_t *entries, dict_t *dict)
-{
- gf_dirent_t *entry = NULL;
- inode_table_t *itable = NULL;
- inode_t *inode = NULL;
- char *hpath = NULL;
- int len = 0;
- struct iatt stbuf = {0, };
- uuid_t gfid;
- int ret = -1;
-
- if (list_empty(&entries->list))
- return 0;
-
- itable = fd->inode->table;
-
- len = posix_handle_path (this, fd->inode->gfid, NULL, NULL, 0);
- if (len <= 0)
- return -1;
- hpath = alloca (len + 256); /* NAME_MAX */
- if (posix_handle_path (this, fd->inode->gfid, NULL, hpath, len) <= 0)
- return -1;
- len = strlen (hpath);
- hpath[len] = '/';
-
- list_for_each_entry (entry, &entries->list, list) {
- memset (gfid, 0, 16);
- inode = inode_grep (fd->inode->table, fd->inode,
- entry->d_name);
- if (inode)
- gf_uuid_copy (gfid, inode->gfid);
-
- strcpy (&hpath[len+1], entry->d_name);
-
- ret = posix_pstat (this, gfid, hpath, &stbuf);
-
- if (ret == -1) {
- if (inode)
- inode_unref (inode);
- continue;
- }
-
- if (!inode)
- inode = inode_find (itable, stbuf.ia_gfid);
-
- if (!inode)
- inode = inode_new (itable);
-
- entry->inode = inode;
-
- if (dict) {
- entry->dict =
- posix_entry_xattr_fill (this, entry->inode,
- fd, hpath,
- dict, &stbuf);
- }
-
- entry->d_stat = stbuf;
- if (stbuf.ia_ino)
- entry->d_ino = stbuf.ia_ino;
-
-#ifdef _DIRENT_HAVE_D_TYPE
- if (entry->d_type == DT_UNKNOWN && !IA_ISINVAL(stbuf.ia_type)) {
- /* The platform supports d_type but the underlying
- filesystem doesn't. We set d_type to the correct
- value from ia_type */
- entry->d_type =
- posix_d_type_from_ia_type (stbuf.ia_type);
- }
-#endif
-
- inode = NULL;
- }
-
- return 0;
-}
-
-
-int32_t
-posix_do_readdir (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t off, int whichop, dict_t *dict)
-{
- struct posix_fd *pfd = NULL;
- DIR *dir = NULL;
- int ret = -1;
- int count = 0;
- int32_t op_ret = -1;
- int32_t op_errno = 0;
- gf_dirent_t entries;
- int32_t skip_dirs = 0;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- INIT_LIST_HEAD (&entries.list);
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, op_errno, P_MSG_PFD_NULL,
- "pfd is NULL, fd=%p", fd);
- goto out;
- }
-
- dir = pfd->dir;
-
- if (!dir) {
- gf_msg (this->name, GF_LOG_WARNING, EINVAL, P_MSG_PFD_NULL,
- "dir is NULL for fd=%p", fd);
- op_errno = EINVAL;
- goto out;
- }
-
- /* When READDIR_FILTER option is set to on, we can filter out
- * directory's entry from the entry->list.
- */
- ret = dict_get_int32 (dict, GF_READDIR_SKIP_DIRS, &skip_dirs);
-
- LOCK (&fd->lock);
- {
- /* posix_fill_readdir performs multiple separate individual
- readdir() calls to fill up the buffer.
-
- In case of NFS where the same anonymous FD is shared between
- different applications, reading a common directory can
- result in the anonymous fd getting re-used unsafely between
- the two readdir requests (in two different io-threads).
-
- It would also help, in the future, to replace the loop
- around readdir() with a single large getdents() call.
- */
- count = posix_fill_readdir (fd, dir, off, size, &entries, this,
- skip_dirs);
- }
- UNLOCK (&fd->lock);
-
- /* pick ENOENT to indicate EOF */
- op_errno = errno;
- op_ret = count;
-
- if (whichop != GF_FOP_READDIRP)
- goto out;
-
- posix_readdirp_fill (this, fd, &entries, dict);
-
-out:
- STACK_UNWIND_STRICT (readdir, frame, op_ret, op_errno, &entries, NULL);
-
- gf_dirent_free (&entries);
-
- return 0;
-}
-
-
-int32_t
-posix_readdir (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t off, dict_t *xdata)
-{
- posix_do_readdir (frame, this, fd, size, off, GF_FOP_READDIR, xdata);
- return 0;
-}
-
-
-int32_t
-posix_readdirp (call_frame_t *frame, xlator_t *this,
- fd_t *fd, size_t size, off_t off, dict_t *dict)
-{
- gf_dirent_t entries;
- int32_t op_ret = -1, op_errno = 0;
- gf_dirent_t *entry = NULL;
-
-
- if ((dict != NULL) && (dict_get (dict, GET_ANCESTRY_DENTRY_KEY))) {
- INIT_LIST_HEAD (&entries.list);
-
- op_ret = posix_get_ancestry (this, fd->inode, &entries, NULL,
- POSIX_ANCESTRY_DENTRY,
- &op_errno, dict);
- if (op_ret >= 0) {
- op_ret = 0;
-
- list_for_each_entry (entry, &entries.list, list) {
- op_ret++;
- }
- }
-
- STACK_UNWIND_STRICT (readdir, frame, op_ret, op_errno, &entries,
- NULL);
-
- gf_dirent_free (&entries);
- return 0;
- }
-
- posix_do_readdir (frame, this, fd, size, off, GF_FOP_READDIRP, dict);
- return 0;
-}
-
-int32_t
-posix_priv (xlator_t *this)
-{
- struct posix_private *priv = NULL;
- char key_prefix[GF_DUMP_MAX_BUF_LEN];
-
- (void) snprintf(key_prefix, GF_DUMP_MAX_BUF_LEN, "%s.%s",
- this->type, this->name);
- gf_proc_dump_add_section(key_prefix);
-
- if (!this)
- return 0;
-
- priv = this->private;
-
- if (!priv)
- return 0;
-
- gf_proc_dump_write("base_path","%s", priv->base_path);
- gf_proc_dump_write("base_path_length","%d", priv->base_path_length);
- gf_proc_dump_write("max_read","%d", priv->read_value);
- gf_proc_dump_write("max_write","%d", priv->write_value);
- gf_proc_dump_write("nr_files","%ld", priv->nr_files);
-
- return 0;
-}
-
-int32_t
-posix_inode (xlator_t *this)
-{
- return 0;
-}
-
-
-int32_t
-posix_rchecksum (call_frame_t *frame, xlator_t *this,
- fd_t *fd, off_t offset, int32_t len, dict_t *xdata)
-{
- char *alloc_buf = NULL;
- char *buf = NULL;
- int _fd = -1;
- struct posix_fd *pfd = NULL;
- int op_ret = -1;
- int op_errno = 0;
- int ret = 0;
- ssize_t bytes_read = 0;
- int32_t weak_checksum = 0;
- int32_t zerofillcheck = 0;
- unsigned char strong_checksum[MD5_DIGEST_LENGTH] = {0};
- struct posix_private *priv = NULL;
- dict_t *rsp_xdata = NULL;
- gf_boolean_t buf_has_zeroes = _gf_false;
-
- VALIDATE_OR_GOTO (frame, out);
- VALIDATE_OR_GOTO (this, out);
- VALIDATE_OR_GOTO (fd, out);
-
- priv = this->private;
- memset (strong_checksum, 0, MD5_DIGEST_LENGTH);
-
- alloc_buf = _page_aligned_alloc (len, &buf);
- if (!alloc_buf) {
- op_errno = ENOMEM;
- goto out;
- }
-
- rsp_xdata = dict_new();
- if (!rsp_xdata) {
- op_errno = ENOMEM;
- goto out;
- }
-
- ret = posix_fd_ctx_get (fd, this, &pfd, &op_errno);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, -ret, P_MSG_PFD_NULL,
- "pfd is NULL, fd=%p", fd);
- goto out;
- }
-
- _fd = pfd->fd;
-
- LOCK (&fd->lock);
- {
- if (priv->aio_capable && priv->aio_init_done)
- __posix_fd_set_odirect (fd, pfd, 0, offset, len);
-
- bytes_read = sys_pread (_fd, buf, len, offset);
- if (bytes_read < 0) {
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_PREAD_FAILED,
- "pread of %d bytes returned %zd", len,
- bytes_read);
-
- op_errno = errno;
- }
-
- }
- UNLOCK (&fd->lock);
-
- if (bytes_read < 0)
- goto out;
-
- if (xdata && dict_get_int32 (xdata, "check-zero-filled",
- &zerofillcheck) == 0) {
- buf_has_zeroes = (mem_0filled (buf, bytes_read)) ? _gf_false :
- _gf_true;
- ret = dict_set_uint32 (rsp_xdata, "buf-has-zeroes",
- buf_has_zeroes);
- if (ret) {
- gf_msg (this->name, GF_LOG_WARNING, -ret,
- P_MSG_DICT_SET_FAILED, "%s: Failed to set "
- "dictionary value for key: %s",
- uuid_utoa (fd->inode->gfid), "buf-has-zeroes");
- op_errno = -ret;
- goto out;
- }
- }
- weak_checksum = gf_rsync_weak_checksum ((unsigned char *) buf, (size_t) ret);
- gf_rsync_strong_checksum ((unsigned char *) buf, (size_t) bytes_read,
- (unsigned char *) strong_checksum);
-
- op_ret = 0;
-out:
- STACK_UNWIND_STRICT (rchecksum, frame, op_ret, op_errno,
- weak_checksum, strong_checksum, rsp_xdata);
- if (rsp_xdata)
- dict_unref (rsp_xdata);
- GF_FREE (alloc_buf);
-
- return 0;
-}
-
-
-/**
- * notify - when parent sends PARENT_UP, send CHILD_UP event from here
- */
-int32_t
-notify (xlator_t *this,
- int32_t event,
- void *data,
- ...)
-{
- struct posix_private *priv = NULL;
-
- priv = this->private;
- switch (event)
- {
- case GF_EVENT_PARENT_UP:
- {
- /* Tell the parent that posix xlator is up */
- default_notify (this, GF_EVENT_CHILD_UP, data);
- }
- break;
- case GF_EVENT_CLEANUP:
- if (priv->health_check) {
- priv->health_check_active = _gf_false;
- pthread_cancel (priv->health_check);
- priv->health_check = 0;
- }
- if (priv->disk_space_check) {
- priv->disk_space_check_active = _gf_false;
- pthread_cancel (priv->disk_space_check);
- priv->disk_space_check = 0;
- }
- if (priv->janitor) {
- (void) gf_thread_cleanup_xint (priv->janitor);
- priv->janitor = 0;
- }
- if (priv->fsyncer) {
- (void) gf_thread_cleanup_xint (priv->fsyncer);
- priv->fsyncer = 0;
- }
- if (priv->mount_lock) {
- (void) sys_closedir (priv->mount_lock);
- priv->mount_lock = NULL;
- }
-
- break;
- default:
- /* */
- break;
- }
- return 0;
-}
-
-int32_t
-mem_acct_init (xlator_t *this)
-{
- int ret = -1;
-
- if (!this)
- return ret;
-
- ret = xlator_mem_acct_init (this, gf_posix_mt_end + 1);
-
- if (ret != 0) {
- return ret;
- }
-
- return ret;
-}
-
-static int
-posix_set_owner (xlator_t *this, uid_t uid, gid_t gid)
-{
- struct posix_private *priv = NULL;
- int ret = -1;
- struct stat st = {0,};
-
- priv = this->private;
-
- ret = sys_lstat (priv->base_path, &st);
- if (ret) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_DIR_OPERATION_FAILED, "Failed to stat "
- "brick path %s",
- priv->base_path);
- return ret;
- }
-
- if ((uid == -1 || st.st_uid == uid) &&
- (gid == -1 || st.st_gid == gid))
- return 0;
-
- ret = sys_chown (priv->base_path, uid, gid);
- if (ret)
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_DIR_OPERATION_FAILED, "Failed to set uid/gid for"
- " brick path %s", priv->base_path);
-
- return ret;
-}
-static int
-set_gfid2path_separator (struct posix_private *priv, const char *str)
-{
- int str_len = 0;
-
- str_len = strlen(str);
- if (str_len > 0 && str_len < 8) {
- strcpy (priv->gfid2path_sep, str);
- return 0;
- }
-
- return -1;
-}
-
-static int
-set_batch_fsync_mode (struct posix_private *priv, const char *str)
-{
- if (strcmp (str, "none") == 0)
- priv->batch_fsync_mode = BATCH_NONE;
- else if (strcmp (str, "syncfs") == 0)
- priv->batch_fsync_mode = BATCH_SYNCFS;
- else if (strcmp (str, "syncfs-single-fsync") == 0)
- priv->batch_fsync_mode = BATCH_SYNCFS_SINGLE_FSYNC;
- else if (strcmp (str, "syncfs-reverse-fsync") == 0)
- priv->batch_fsync_mode = BATCH_SYNCFS_REVERSE_FSYNC;
- else if (strcmp (str, "reverse-fsync") == 0)
- priv->batch_fsync_mode = BATCH_REVERSE_FSYNC;
- else
- return -1;
-
- return 0;
-}
-
-#ifdef GF_DARWIN_HOST_OS
-static int
-set_xattr_user_namespace_mode (struct posix_private *priv, const char *str)
-{
- if (strcmp (str, "none") == 0)
- priv->xattr_user_namespace = XATTR_NONE;
- else if (strcmp (str, "strip") == 0)
- priv->xattr_user_namespace = XATTR_STRIP;
- else if (strcmp (str, "append") == 0)
- priv->xattr_user_namespace = XATTR_APPEND;
- else if (strcmp (str, "both") == 0)
- priv->xattr_user_namespace = XATTR_BOTH;
- else
- return -1;
- return 0;
-}
-#endif
-
-int
-reconfigure (xlator_t *this, dict_t *options)
-{
- int ret = -1;
- struct posix_private *priv = NULL;
- int32_t uid = -1;
- int32_t gid = -1;
- char *batch_fsync_mode_str = NULL;
- char *gfid2path_sep = NULL;
- int32_t force_create_mode = -1;
- int32_t force_directory_mode = -1;
- int32_t create_mask = -1;
- int32_t create_directory_mask = -1;
-
- priv = this->private;
- GF_OPTION_RECONF ("brick-uid", uid, options, int32, out);
- GF_OPTION_RECONF ("brick-gid", gid, options, int32, out);
- if (uid != -1 || gid != -1)
- posix_set_owner (this, uid, gid);
-
- GF_OPTION_RECONF ("batch-fsync-delay-usec", priv->batch_fsync_delay_usec,
- options, uint32, out);
-
- GF_OPTION_RECONF ("batch-fsync-mode", batch_fsync_mode_str,
- options, str, out);
-
- if (set_batch_fsync_mode (priv, batch_fsync_mode_str) != 0) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_INVALID_ARGUMENT,
- "Unknown mode string: %s", batch_fsync_mode_str);
- goto out;
- }
-
- GF_OPTION_RECONF ("gfid2path-separator", gfid2path_sep, options,
- str, out);
- if (set_gfid2path_separator (priv, gfid2path_sep) != 0) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_INVALID_ARGUMENT,
- "Length of separator exceeds 7: %s", gfid2path_sep);
- goto out;
- }
-
-#ifdef GF_DARWIN_HOST_OS
-
- char *xattr_user_namespace_mode_str = NULL;
-
- GF_OPTION_RECONF ("xattr-user-namespace-mode", xattr_user_namespace_mode_str,
- options, str, out);
-
- if (set_xattr_user_namespace_mode (priv, xattr_user_namespace_mode_str) != 0) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_UNKNOWN_ARGUMENT,
- "Unknown xattr user namespace mode string: %s",
- xattr_user_namespace_mode_str);
- goto out;
- }
-
-#endif
-
- GF_OPTION_RECONF ("linux-aio", priv->aio_configured,
- options, bool, out);
-
- if (priv->aio_configured)
- posix_aio_on (this);
- else
- posix_aio_off (this);
-
- GF_OPTION_RECONF ("update-link-count-parent", priv->update_pgfid_nlinks,
- options, bool, out);
-
- GF_OPTION_RECONF ("gfid2path", priv->gfid2path,
- options, bool, out);
-
- GF_OPTION_RECONF ("node-uuid-pathinfo", priv->node_uuid_pathinfo,
- options, bool, out);
-
- if (priv->node_uuid_pathinfo &&
- (gf_uuid_is_null (priv->glusterd_uuid))) {
- gf_msg (this->name, GF_LOG_INFO, 0, P_MSG_UUID_NULL,
- "glusterd uuid is NULL, pathinfo xattr would"
- " fallback to <hostname>:<export>");
- }
-
- GF_OPTION_RECONF ("reserve", priv->disk_reserve,
- options, uint32, out);
- if (priv->disk_reserve)
- posix_spawn_disk_space_check_thread (this);
-
- GF_OPTION_RECONF ("health-check-interval", priv->health_check_interval,
- options, uint32, out);
- GF_OPTION_RECONF ("health-check-timeout", priv->health_check_timeout,
- options, uint32, out);
- posix_spawn_health_check_thread (this);
-
- GF_OPTION_RECONF ("shared-brick-count", priv->shared_brick_count,
- options, int32, out);
- GF_OPTION_RECONF ("force-create-mode", force_create_mode,
- options, int32, out);
- priv->force_create_mode = force_create_mode;
-
- GF_OPTION_RECONF ("force-directory-mode", force_directory_mode,
- options, int32, out);
- priv->force_directory_mode = force_directory_mode;
-
- GF_OPTION_RECONF ("create-mask", create_mask,
- options, int32, out);
- priv->create_mask = create_mask;
-
- GF_OPTION_RECONF ("create-directory-mask", create_directory_mask,
- options, int32, out);
- priv->create_directory_mask = create_directory_mask;
-
- ret = 0;
-out:
- return ret;
-}
-
-int32_t
-posix_delete_unlink_entry (const char *fpath, const struct stat *sb,
- int typeflag, struct FTW *ftwbuf) {
-
- int ret = 0;
-
- if (!fpath)
- goto out;
-
- switch (typeflag) {
- case FTW_SL:
- case FTW_NS:
- case FTW_F:
- case FTW_SLN:
- ret = sys_unlink(fpath);
- break;
- case FTW_D:
- case FTW_DP:
- case FTW_DNR:
- if (ftwbuf->level != 0) {
- ret = sys_rmdir(fpath);
- }
- break;
- default:
- break;
- }
- if (ret) {
- gf_msg ("posix_delete_unlink_entry", GF_LOG_WARNING, errno,
- P_MSG_HANDLE_CREATE,
- "Deletion of entries %s failed"
- "Please delete it manually",
- fpath);
- }
-out:
- return 0;
-}
-
-int32_t
-posix_delete_unlink (const char *unlink_path) {
-
- int ret = -1;
- int flags = 0;
-
- flags |= (FTW_DEPTH | FTW_PHYS);
-
- ret = nftw(unlink_path, posix_delete_unlink_entry, 2, flags);
- if (ret) {
- gf_msg ("posix_delete_unlink", GF_LOG_ERROR, 0,
- P_MSG_HANDLE_CREATE,
- "Deleting files from %s failed",
- unlink_path);
- }
- return ret;
-}
-
-int32_t
-posix_create_unlink_dir (xlator_t *this) {
-
- struct posix_private *priv = NULL;
- struct stat stbuf;
- int ret = -1;
- uuid_t gfid = {0};
- char gfid_str[64] = {0};
- char unlink_path[PATH_MAX] = {0,};
- char landfill_path[PATH_MAX] = {0,};
-
- priv = this->private;
-
- (void) snprintf (unlink_path, sizeof(unlink_path), "%s/%s",
- priv->base_path, GF_UNLINK_PATH);
-
- gf_uuid_generate (gfid);
- uuid_utoa_r (gfid, gfid_str);
-
- (void) snprintf (landfill_path, sizeof(landfill_path), "%s/%s/%s",
- priv->base_path, GF_LANDFILL_PATH, gfid_str);
-
- ret = sys_stat (unlink_path, &stbuf);
- switch (ret) {
- case -1:
- if (errno != ENOENT) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_HANDLE_CREATE,
- "Checking for %s failed",
- unlink_path);
- return -1;
- }
- break;
- case 0:
- if (!S_ISDIR (stbuf.st_mode)) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_HANDLE_CREATE,
- "Not a directory: %s",
- unlink_path);
- return -1;
- }
- ret = posix_delete_unlink (unlink_path);
- return 0;
- default:
- break;
- }
- ret = sys_mkdir (unlink_path, 0600);
- if (ret) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_HANDLE_CREATE,
- "Creating directory %s failed",
- unlink_path);
- return -1;
- }
-
- return 0;
-}
-
-/**
- * init -
- */
-int
-init (xlator_t *this)
-{
- struct posix_private *_private = NULL;
- data_t *dir_data = NULL;
- data_t *tmp_data = NULL;
- struct stat buf = {0,};
- gf_boolean_t tmp_bool = 0;
- int ret = 0;
- int op_ret = -1;
- int op_errno = 0;
- ssize_t size = -1;
- uuid_t old_uuid = {0,};
- uuid_t dict_uuid = {0,};
- uuid_t gfid = {0,};
- uuid_t rootgfid = {0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1};
- char *guuid = NULL;
- int32_t uid = -1;
- int32_t gid = -1;
- char *batch_fsync_mode_str;
- char *gfid2path_sep = NULL;
- int force_create = -1;
- int force_directory = -1;
- int create_mask = -1;
- int create_directory_mask = -1;
-
- dir_data = dict_get (this->options, "directory");
-
- if (this->children) {
- gf_msg (this->name, GF_LOG_CRITICAL, 0, P_MSG_SUBVOLUME_ERROR,
- "FATAL: storage/posix cannot have subvolumes");
- ret = -1;
- goto out;
- }
-
- if (!this->parents) {
- gf_msg (this->name, GF_LOG_WARNING, 0, P_MSG_VOLUME_DANGLING,
- "Volume is dangling. Please check the volume file.");
- }
-
- if (!dir_data) {
- gf_msg (this->name, GF_LOG_CRITICAL, 0,
- P_MSG_EXPORT_DIR_MISSING,
- "Export directory not specified in volume file.");
- ret = -1;
- goto out;
- }
-
- umask (000); // umask `masking' is done at the client side
-
- /* Check whether the specified directory exists, if not log it. */
- op_ret = sys_stat (dir_data->data, &buf);
- if ((op_ret != 0) || !S_ISDIR (buf.st_mode)) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_DIR_OPERATION_FAILED,
- "Directory '%s' doesn't exist, exiting.",
- dir_data->data);
- ret = -1;
- goto out;
- }
-
- _private = GF_CALLOC (1, sizeof (*_private),
- gf_posix_mt_posix_private);
- if (!_private) {
- ret = -1;
- goto out;
- }
-
- _private->base_path = gf_strdup (dir_data->data);
- _private->base_path_length = strlen (_private->base_path);
-
- ret = dict_get_str (this->options, "hostname", &_private->hostname);
- if (ret) {
- _private->hostname = GF_CALLOC (256, sizeof (char),
- gf_common_mt_char);
- if (!_private->hostname) {
- goto out;
- }
- ret = gethostname (_private->hostname, 256);
- if (ret < 0) {
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_HOSTNAME_MISSING,
- "could not find hostname ");
- }
- }
-
- /* Check for Extended attribute support, if not present, log it */
- op_ret = sys_lsetxattr (dir_data->data,
- "trusted.glusterfs.test", "working", 8, 0);
- if (op_ret != -1) {
- sys_lremovexattr (dir_data->data, "trusted.glusterfs.test");
- } else {
- tmp_data = dict_get (this->options,
- "mandate-attribute");
- if (tmp_data) {
- if (gf_string2boolean (tmp_data->data,
- &tmp_bool) == -1) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_INVALID_OPTION,
- "wrong option provided for key "
- "\"mandate-attribute\"");
- ret = -1;
- goto out;
- }
- if (!tmp_bool) {
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_XATTR_NOTSUP,
- "Extended attribute not supported, "
- "starting as per option");
- } else {
- gf_msg (this->name, GF_LOG_CRITICAL, 0,
- P_MSG_XATTR_NOTSUP,
- "Extended attribute not supported, "
- "exiting.");
- ret = -1;
- goto out;
- }
- } else {
- gf_msg (this->name, GF_LOG_CRITICAL, 0,
- P_MSG_XATTR_NOTSUP,
- "Extended attribute not supported, exiting.");
- ret = -1;
- goto out;
- }
- }
-
- tmp_data = dict_get (this->options, "volume-id");
- if (tmp_data) {
- op_ret = gf_uuid_parse (tmp_data->data, dict_uuid);
- if (op_ret < 0) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_INVALID_VOLUME_ID,
- "wrong volume-id (%s) set"
- " in volume file", tmp_data->data);
- ret = -1;
- goto out;
- }
- size = sys_lgetxattr (dir_data->data,
- "trusted.glusterfs.volume-id", old_uuid, 16);
- if (size == 16) {
- if (gf_uuid_compare (old_uuid, dict_uuid)) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_INVALID_VOLUME_ID,
- "mismatching volume-id (%s) received. "
- "already is a part of volume %s ",
- tmp_data->data, uuid_utoa (old_uuid));
- gf_event (EVENT_POSIX_ALREADY_PART_OF_VOLUME,
- "volume-id=%s;brick=%s:%s",
- uuid_utoa (old_uuid),
- _private->hostname, _private->base_path);
- ret = -1;
- goto out;
- }
- } else if ((size == -1) &&
- (errno == ENODATA || errno == ENOATTR)) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_VOLUME_ID_ABSENT,
- "Extended attribute trusted.glusterfs."
- "volume-id is absent");
- gf_event (EVENT_POSIX_BRICK_NOT_IN_VOLUME,
- "brick=%s:%s",
- _private->hostname, _private->base_path);
- ret = -1;
- goto out;
-
- } else if ((size == -1) && (errno != ENODATA) &&
- (errno != ENOATTR)) {
- /* Wrong 'volume-id' is set, it should be error */
- gf_event (EVENT_POSIX_BRICK_VERIFICATION_FAILED,
- "brick=%s:%s",
- _private->hostname, _private->base_path);
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_VOLUME_ID_FETCH_FAILED,
- "%s: failed to fetch volume-id",
- dir_data->data);
- ret = -1;
- goto out;
- } else {
- ret = -1;
- gf_event (EVENT_POSIX_BRICK_VERIFICATION_FAILED,
- "brick=%s:%s",
- _private->hostname, _private->base_path);
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_VOLUME_ID_FETCH_FAILED,
- "failed to fetch proper volume id from export");
- goto out;
- }
- }
-
- /* Now check if the export directory has some other 'gfid',
- other than that of root '/' */
- size = sys_lgetxattr (dir_data->data, "trusted.gfid", gfid, 16);
- if (size == 16) {
- if (!__is_root_gfid (gfid)) {
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_GFID_SET_FAILED,
- "%s: gfid (%s) is not that of glusterfs '/' ",
- dir_data->data, uuid_utoa (gfid));
- ret = -1;
- goto out;
- }
- } else if (size != -1) {
- /* Wrong 'gfid' is set, it should be error */
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_GFID_SET_FAILED,
- "%s: wrong value set as gfid",
- dir_data->data);
- ret = -1;
- goto out;
- } else if ((size == -1) && (errno != ENODATA) &&
- (errno != ENOATTR)) {
- /* Wrong 'gfid' is set, it should be error */
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_GFID_SET_FAILED,
- "%s: failed to fetch gfid",
- dir_data->data);
- ret = -1;
- goto out;
- } else {
- /* First time volume, set the GFID */
- size = sys_lsetxattr (dir_data->data, "trusted.gfid", rootgfid,
- 16, XATTR_CREATE);
- if (size == -1) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_GFID_SET_FAILED,
- "%s: failed to set gfid",
- dir_data->data);
- ret = -1;
- goto out;
- }
- }
-
- ret = 0;
-
- size = sys_lgetxattr (dir_data->data, POSIX_ACL_ACCESS_XATTR,
- NULL, 0);
- if ((size < 0) && (errno == ENOTSUP)) {
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_ACL_NOTSUP,
- "Posix access control list is not supported.");
- gf_event (EVENT_POSIX_ACL_NOT_SUPPORTED,
- "brick=%s:%s", _private->hostname, _private->base_path);
- }
-
- /*
- * _XOPEN_PATH_MAX is the longest file path len we MUST
- * support according to POSIX standard. When prepended
- * by the brick base path it may exceed backed filesystem
- * capacity (which MAY be bigger than _XOPEN_PATH_MAX). If
- * this is the case, chdir() to the brick base path and
- * use relative paths when they are too long. See also
- * MAKE_REAL_PATH in posix-handle.h
- */
- _private->path_max = pathconf(_private->base_path, _PC_PATH_MAX);
- if (_private->path_max != -1 &&
- _XOPEN_PATH_MAX + _private->base_path_length > _private->path_max) {
- ret = chdir(_private->base_path);
- if (ret) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_BASEPATH_CHDIR_FAILED,
- "chdir() to \"%s\" failed",
- _private->base_path);
- goto out;
- }
-#ifdef __NetBSD__
- /*
- * At least on NetBSD, the chdir() above uncovers a
- * race condition which cause file lookup to fail
- * with ENODATA for a few seconds. The volume quickly
- * reaches a sane state, but regression tests are fast
- * enough to choke on it. The reason is obscure (as
- * often with race conditions), but sleeping here for
- * a second seems to workaround the problem.
- */
- sleep(1);
-#endif
- }
-
-
- LOCK_INIT (&_private->lock);
-
- _private->export_statfs = 1;
- tmp_data = dict_get (this->options, "export-statfs-size");
- if (tmp_data) {
- if (gf_string2boolean (tmp_data->data,
- &_private->export_statfs) == -1) {
- ret = -1;
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_INVALID_OPTION_VAL,
- "'export-statfs-size' takes only boolean "
- "options");
- goto out;
- }
- if (!_private->export_statfs)
- gf_msg_debug (this->name, 0,
- "'statfs()' returns dummy size");
- }
-
- _private->background_unlink = 0;
- tmp_data = dict_get (this->options, "background-unlink");
- if (tmp_data) {
- if (gf_string2boolean (tmp_data->data,
- &_private->background_unlink) == -1) {
- ret = -1;
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_INVALID_OPTION_VAL, "'background-unlink'"
- " takes only boolean options");
- goto out;
- }
-
- if (_private->background_unlink)
- gf_msg_debug (this->name, 0,
- "unlinks will be performed in background");
- }
-
- tmp_data = dict_get (this->options, "o-direct");
- if (tmp_data) {
- if (gf_string2boolean (tmp_data->data,
- &_private->o_direct) == -1) {
- ret = -1;
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_INVALID_OPTION_VAL,
- "wrong option provided for 'o-direct'");
- goto out;
- }
- if (_private->o_direct)
- gf_msg_debug (this->name, 0, "o-direct mode is enabled"
- " (O_DIRECT for every open)");
- }
-
- tmp_data = dict_get (this->options, "update-link-count-parent");
- if (tmp_data) {
- if (gf_string2boolean (tmp_data->data,
- &_private->update_pgfid_nlinks) == -1) {
- ret = -1;
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_INVALID_OPTION, "wrong value provided "
- "for 'update-link-count-parent'");
- goto out;
- }
- if (_private->update_pgfid_nlinks)
- gf_msg_debug (this->name, 0, "update-link-count-parent"
- " is enabled. Thus for each file an "
- "extended attribute representing the "
- "number of hardlinks for that file "
- "within the same parent directory is"
- " set.");
- }
-
- ret = dict_get_str (this->options, "glusterd-uuid", &guuid);
- if (!ret) {
- if (gf_uuid_parse (guuid, _private->glusterd_uuid))
- gf_msg (this->name, GF_LOG_WARNING, 0,
- P_MSG_INVALID_NODE_UUID, "Cannot parse "
- "glusterd (node) UUID, node-uuid xattr "
- "request would return - \"No such attribute\"");
- } else {
- gf_msg_debug (this->name, 0, "No glusterd (node) UUID passed -"
- " node-uuid xattr request will return \"No such"
- " attribute\"");
- }
- ret = 0;
-
- GF_OPTION_INIT ("janitor-sleep-duration",
- _private->janitor_sleep_duration, int32, out);
-
- /* performing open dir on brick dir locks the brick dir
- * and prevents it from being unmounted
- */
- _private->mount_lock = sys_opendir (dir_data->data);
- if (!_private->mount_lock) {
- ret = -1;
- op_errno = errno;
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_DIR_OPERATION_FAILED,
- "Could not lock brick directory (%s)",
- strerror (op_errno));
- goto out;
- }
-#ifndef GF_DARWIN_HOST_OS
- {
- struct rlimit lim;
- lim.rlim_cur = 1048576;
- lim.rlim_max = 1048576;
-
- if (setrlimit (RLIMIT_NOFILE, &lim) == -1) {
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_SET_ULIMIT_FAILED,
- "Failed to set 'ulimit -n "
- " 1048576'");
- lim.rlim_cur = 65536;
- lim.rlim_max = 65536;
-
- if (setrlimit (RLIMIT_NOFILE, &lim) == -1) {
- gf_msg (this->name, GF_LOG_WARNING, errno,
- P_MSG_SET_FILE_MAX_FAILED,
- "Failed to set maximum allowed open "
- "file descriptors to 64k");
- }
- else {
- gf_msg (this->name, GF_LOG_INFO, 0,
- P_MSG_MAX_FILE_OPEN, "Maximum allowed "
- "open file descriptors set to 65536");
- }
- }
- }
-#endif
- _private->shared_brick_count = 1;
- ret = dict_get_int32 (this->options, "shared-brick-count",
- &_private->shared_brick_count);
- if (ret == -1) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_INVALID_OPTION_VAL,
- "'shared-brick-count' takes only integer "
- "values");
- goto out;
- }
-
- this->private = (void *)_private;
-
- op_ret = posix_handle_init (this);
- if (op_ret == -1) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_HANDLE_CREATE,
- "Posix handle setup failed");
- ret = -1;
- goto out;
- }
-
- op_ret = posix_handle_trash_init (this);
- if (op_ret < 0) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_HANDLE_CREATE_TRASH,
- "Posix landfill setup failed");
- ret = -1;
- goto out;
- }
-
- op_ret = posix_create_unlink_dir (this);
- if (op_ret == -1) {
- gf_msg (this->name, GF_LOG_ERROR, 0,
- P_MSG_HANDLE_CREATE,
- "Creation of unlink directory failed");
- ret = -1;
- goto out;
- }
-
- _private->aio_init_done = _gf_false;
- _private->aio_capable = _gf_false;
-
- GF_OPTION_INIT ("brick-uid", uid, int32, out);
- GF_OPTION_INIT ("brick-gid", gid, int32, out);
- if (uid != -1 || gid != -1)
- posix_set_owner (this, uid, gid);
-
- GF_OPTION_INIT ("linux-aio", _private->aio_configured, bool, out);
-
- if (_private->aio_configured) {
- op_ret = posix_aio_on (this);
-
- if (op_ret == -1) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_POSIX_AIO,
- "Posix AIO init failed");
- ret = -1;
- goto out;
- }
- }
-
- GF_OPTION_INIT ("node-uuid-pathinfo",
- _private->node_uuid_pathinfo, bool, out);
- if (_private->node_uuid_pathinfo &&
- (gf_uuid_is_null (_private->glusterd_uuid))) {
- gf_msg (this->name, GF_LOG_INFO, 0, P_MSG_UUID_NULL,
- "glusterd uuid is NULL, pathinfo xattr would"
- " fallback to <hostname>:<export>");
- }
-
- _private->disk_space_check_active = _gf_false;
- _private->disk_space_full = 0;
- GF_OPTION_INIT ("reserve",
- _private->disk_reserve, uint32, out);
- if (_private->disk_reserve)
- posix_spawn_disk_space_check_thread (this);
-
- _private->health_check_active = _gf_false;
- GF_OPTION_INIT ("health-check-interval",
- _private->health_check_interval, uint32, out);
- GF_OPTION_INIT ("health-check-timeout",
- _private->health_check_timeout, uint32, out);
- if (_private->health_check_interval)
- posix_spawn_health_check_thread (this);
-
- pthread_mutex_init (&_private->janitor_lock, NULL);
- pthread_cond_init (&_private->janitor_cond, NULL);
- INIT_LIST_HEAD (&_private->janitor_fds);
-
- posix_spawn_janitor_thread (this);
-
- pthread_mutex_init (&_private->fsync_mutex, NULL);
- pthread_cond_init (&_private->fsync_cond, NULL);
- INIT_LIST_HEAD (&_private->fsyncs);
-
- ret = gf_thread_create (&_private->fsyncer, NULL, posix_fsyncer, this,
- "posixfsy");
- if (ret) {
- gf_msg (this->name, GF_LOG_ERROR, errno,
- P_MSG_FSYNCER_THREAD_CREATE_FAILED,
- "fsyncer thread creation failed");
- goto out;
- }
-
- GF_OPTION_INIT ("batch-fsync-mode", batch_fsync_mode_str, str, out);
-
- if (set_batch_fsync_mode (_private, batch_fsync_mode_str) != 0) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_INVALID_ARGUMENT,
- "Unknown mode string: %s", batch_fsync_mode_str);
- goto out;
- }
-
- GF_OPTION_INIT ("gfid2path", _private->gfid2path, bool, out);
-
- GF_OPTION_INIT ("gfid2path-separator", gfid2path_sep, str, out);
- if (set_gfid2path_separator (_private, gfid2path_sep) != 0) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_INVALID_ARGUMENT,
- "Length of separator exceeds 7: %s", gfid2path_sep);
- goto out;
- }
-
-#ifdef GF_DARWIN_HOST_OS
-
- char *xattr_user_namespace_mode_str = NULL;
-
- GF_OPTION_INIT ("xattr-user-namespace-mode",
- xattr_user_namespace_mode_str, str, out);
-
- if (set_xattr_user_namespace_mode (_private,
- xattr_user_namespace_mode_str) != 0) {
- gf_msg (this->name, GF_LOG_ERROR, 0, P_MSG_INVALID_ARGUMENT,
- "Unknown xattr user namespace mode string: %s",
- xattr_user_namespace_mode_str);
- goto out;
- }
-#endif
-
- GF_OPTION_INIT ("batch-fsync-delay-usec", _private->batch_fsync_delay_usec,
- uint32, out);
- GF_OPTION_INIT ("force-create-mode", force_create, int32, out);
- _private->force_create_mode = force_create;
-
- GF_OPTION_INIT ("force-directory-mode", force_directory, int32, out);
- _private->force_directory_mode = force_directory;
-
- GF_OPTION_INIT ("create-mask",
- create_mask, int32, out);
- _private->create_mask = create_mask;
-
- GF_OPTION_INIT ("create-directory-mask",
- create_directory_mask, int32, out);
- _private->create_directory_mask = create_directory_mask;
-out:
- if (ret) {
- if (_private) {
- GF_FREE (_private->base_path);
-
- GF_FREE (_private->hostname);
-
- GF_FREE (_private->trash_path);
-
- GF_FREE (_private);
- }
-
- this->private = NULL;
- }
- return ret;
-}
-
-void
-fini (xlator_t *this)
-{
- struct posix_private *priv = this->private;
- if (!priv)
- return;
- this->private = NULL;
- /*unlock brick dir*/
- if (priv->mount_lock)
- (void) sys_closedir (priv->mount_lock);
-
- GF_FREE (priv->base_path);
- GF_FREE (priv->hostname);
- GF_FREE (priv->trash_path);
- GF_FREE (priv);
-
- return;
-}
struct xlator_dumpops dumpops = {
.priv = posix_priv,
.inode = posix_inode,
@@ -8081,8 +71,8 @@ struct xlator_fops fops = {
.fxattrop = posix_fxattrop,
.setattr = posix_setattr,
.fsetattr = posix_fsetattr,
- .fallocate = _posix_fallocate,
- .discard = posix_discard,
+ .fallocate = posix_glfallocate,
+ .discard = posix_discard,
.zerofill = posix_zerofill,
.ipc = posix_ipc,
#ifdef HAVE_SEEK_HOLE
@@ -8096,217 +86,3 @@ struct xlator_cbks cbks = {
.releasedir = posix_releasedir,
.forget = posix_forget
};
-
-struct volume_options options[] = {
- { .key = {"o-direct"},
- .type = GF_OPTION_TYPE_BOOL },
- { .key = {"directory"},
- .type = GF_OPTION_TYPE_PATH,
- .default_value = "{{brick.path}}"
- },
- { .key = {"hostname"},
- .type = GF_OPTION_TYPE_ANY },
- { .key = {"export-statfs-size"},
- .type = GF_OPTION_TYPE_BOOL },
- { .key = {"mandate-attribute"},
- .type = GF_OPTION_TYPE_BOOL },
- { .key = {"background-unlink"},
- .type = GF_OPTION_TYPE_BOOL },
- { .key = {"janitor-sleep-duration"},
- .type = GF_OPTION_TYPE_INT,
- .min = 1,
- .validate = GF_OPT_VALIDATE_MIN,
- .default_value = "10",
- .description = "Interval (in seconds) between times the internal "
- "'landfill' directory is emptied."
- },
- { .key = {"volume-id"},
- .type = GF_OPTION_TYPE_ANY,
- .default_value = "{{brick.volumeid}}"
- },
- { .key = {"glusterd-uuid"},
- .type = GF_OPTION_TYPE_STR },
- {
- .key = {"linux-aio"},
- .type = GF_OPTION_TYPE_BOOL,
- .default_value = "off",
- .description = "Support for native Linux AIO",
- .op_version = {1},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
- },
- {
- .key = {"brick-uid"},
- .type = GF_OPTION_TYPE_INT,
- .min = -1,
- .validate = GF_OPT_VALIDATE_MIN,
- .default_value = "-1",
- .description = "Support for setting uid of brick's owner",
- .op_version = {1},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
- },
- {
- .key = {"brick-gid"},
- .type = GF_OPTION_TYPE_INT,
- .min = -1,
- .validate = GF_OPT_VALIDATE_MIN,
- .default_value = "-1",
- .description = "Support for setting gid of brick's owner",
- .op_version = {1},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
- },
- { .key = {"node-uuid-pathinfo"},
- .type = GF_OPTION_TYPE_BOOL,
- .default_value = "off",
- .description = "return glusterd's node-uuid in pathinfo xattr"
- " string instead of hostname",
- .op_version = {3},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
- },
- {
- .key = {"health-check-interval"},
- .type = GF_OPTION_TYPE_INT,
- .min = 0,
- .default_value = "30",
- .validate = GF_OPT_VALIDATE_MIN,
- .description = "Interval in seconds for a filesystem health check, "
- "set to 0 to disable",
- .op_version = {3},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
- },
- {
- .key = {"health-check-timeout"},
- .type = GF_OPTION_TYPE_INT,
- .min = 0,
- .default_value = "10",
- .validate = GF_OPT_VALIDATE_MIN,
- .description = "Interval in seconds to wait aio_write finish for health check, "
- "set to 0 to disable",
- .op_version = {GD_OP_VERSION_4_0_0},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
- },
- {
- .key = {"reserve"},
- .type = GF_OPTION_TYPE_INT,
- .min = 0,
- .default_value = "1",
- .validate = GF_OPT_VALIDATE_MIN,
- .description = "Percentage of disk space to be reserved."
- " Set to 0 to disable",
- .op_version = {GD_OP_VERSION_3_13_0},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
- },
- { .key = {"batch-fsync-mode"},
- .type = GF_OPTION_TYPE_STR,
- .default_value = "reverse-fsync",
- .description = "Possible values:\n"
- "\t- syncfs: Perform one syncfs() on behalf oa batch"
- "of fsyncs.\n"
- "\t- syncfs-single-fsync: Perform one syncfs() on behalf of a batch"
- " of fsyncs and one fsync() per batch.\n"
- "\t- syncfs-reverse-fsync: Preform one syncfs() on behalf of a batch"
- " of fsyncs and fsync() each file in the batch in reverse order.\n"
- " in reverse order.\n"
- "\t- reverse-fsync: Perform fsync() of each file in the batch in"
- " reverse order.",
- .op_version = {3},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
- },
- { .key = {"batch-fsync-delay-usec"},
- .type = GF_OPTION_TYPE_INT,
- .default_value = "0",
- .description = "Num of usecs to wait for aggregating fsync"
- " requests",
- .op_version = {3},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
- },
- { .key = {"update-link-count-parent"},
- .type = GF_OPTION_TYPE_BOOL,
- .default_value = "off",
- .description = "Enable placeholders for gfid to path conversion",
- .op_version = {GD_OP_VERSION_3_6_0},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
- },
- { .key = {"gfid2path"},
- .type = GF_OPTION_TYPE_BOOL,
-#ifdef __NetBSD__
- /*
- * NetBSD storage of extended attributes for UFS1 badly
- * scales when the list of extended attributes names rises.
- * This option can add as many extended attributes names
- * as we have files, hence we keep it disabled for performance
- * sake.
- */
- .default_value = "off",
-#else
- .default_value = "on",
-#endif
- .description = "Enable logging metadata for gfid to path conversion",
- .op_version = {GD_OP_VERSION_3_12_0},
- .flags = OPT_FLAG_SETTABLE
- },
- { .key = {"gfid2path-separator"},
- .type = GF_OPTION_TYPE_STR,
- .default_value = ":",
- .description = "Path separator for glusterfs.gfidtopath virt xattr",
- .op_version = {GD_OP_VERSION_3_12_0},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
- },
-#if GF_DARWIN_HOST_OS
- { .key = {"xattr-user-namespace-mode"},
- .type = GF_OPTION_TYPE_STR,
- .default_value = "none",
- .description = "Option to control XATTR user namespace on the raw filesystem: "
- "\t- None: Will use the user namespace, so files will be exchangable with Linux.\n"
- " The raw filesystem will not be compatible with OS X Finder.\n"
- "\t- Strip: Will strip the user namespace before setting. The raw filesystem will work in OS X.\n",
- .op_version = {GD_OP_VERSION_3_6_0},
- .flags = OPT_FLAG_SETTABLE | OPT_FLAG_DOC
- },
-#endif
- { .key = {"shared-brick-count"},
- .type = GF_OPTION_TYPE_INT,
- .default_value = "1",
- .description = "Number of bricks sharing the same backend export."
- " Useful for displaying the proper usable size through statvfs() "
- "call (df command)",
- },
- { .key = {"force-create-mode"},
- .type = GF_OPTION_TYPE_INT,
- .min = 0000,
- .max = 0777,
- .default_value = "0000",
- .validate = GF_OPT_VALIDATE_MIN,
- .validate = GF_OPT_VALIDATE_MAX,
- .description = "Mode bit permission that will always be set on a file."
- },
- { .key = {"force-directory-mode"},
- .type = GF_OPTION_TYPE_INT,
- .min = 0000,
- .max = 0777,
- .default_value = "0000",
- .validate = GF_OPT_VALIDATE_MIN,
- .validate = GF_OPT_VALIDATE_MAX,
- .description = "Mode bit permission that will be always set on directory"
- },
- { .key = {"create-mask"},
- .type = GF_OPTION_TYPE_INT,
- .min = 0000,
- .max = 0777,
- .default_value = "0777",
- .validate = GF_OPT_VALIDATE_MIN,
- .validate = GF_OPT_VALIDATE_MAX,
- .description = "Any bit not set here will be removed from the"
- "modes set on a file when it is created"
- },
- { .key = {"create-directory-mask"},
- .type = GF_OPTION_TYPE_INT,
- .min = 0000,
- .max = 0777,
- .default_value = "0777",
- .validate = GF_OPT_VALIDATE_MIN,
- .validate = GF_OPT_VALIDATE_MAX,
- .description = "Any bit not set here will be removed from the"
- "modes set on a directory when it is created"
- },
- { .key = {NULL} }
-};
diff --git a/xlators/storage/posix/src/posix.h b/xlators/storage/posix/src/posix.h
index e2f1dfa2dd1..36348767870 100644
--- a/xlators/storage/posix/src/posix.h
+++ b/xlators/storage/posix/src/posix.h
@@ -363,4 +363,247 @@ posix_fdget_objectsignature (int, dict_t *);
gf_boolean_t
posix_is_bulk_removexattr (char *name, dict_t *dict);
+
+int32_t
+posix_set_iatt_in_dict (dict_t *, struct iatt *);
+
+mode_t
+posix_override_umask (mode_t , mode_t);
+
+int32_t
+posix_priv (xlator_t *this);
+
+int32_t
+posix_inode (xlator_t *this);
+
+void
+posix_fini (xlator_t *this);
+
+int
+posix_init (xlator_t *this);
+
+int
+posix_reconfigure (xlator_t *this, dict_t *options);
+
+int32_t
+posix_notify (xlator_t *this, int32_t event, void *data, ...);
+
+/* posix-entry-ops.c FOP signatures */
+int32_t
+posix_lookup (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, dict_t *xdata);
+
+int
+posix_create (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int32_t flags, mode_t mode,
+ mode_t umask, fd_t *fd, dict_t *xdata);
+
+int
+posix_symlink (call_frame_t *frame, xlator_t *this,
+ const char *linkname, loc_t *loc, mode_t umask, dict_t *xdata);
+
+int
+posix_rename (call_frame_t *frame, xlator_t *this,
+ loc_t *oldloc, loc_t *newloc, dict_t *xdata);
+
+int
+posix_link (call_frame_t *frame, xlator_t *this,
+ loc_t *oldloc, loc_t *newloc, dict_t *xdata);
+
+int
+posix_mknod (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, mode_t mode, dev_t dev, mode_t umask, dict_t *xdata);
+
+int
+posix_mkdir (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, mode_t mode, mode_t umask, dict_t *xdata);
+
+int32_t
+posix_unlink (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int xflag, dict_t *xdata);
+
+int
+posix_rmdir (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int flags, dict_t *xdata);
+
+/* posix-inode-fs-ops.c FOP signatures */
+int
+posix_forget (xlator_t *this, inode_t *inode);
+
+int32_t
+posix_discover (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, dict_t *xdata);
+
+int32_t
+posix_stat (call_frame_t *frame, xlator_t *this, loc_t *loc, dict_t *xdata);
+
+int
+posix_setattr (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, struct iatt *stbuf, int32_t valid, dict_t *xdata);
+
+int
+posix_fsetattr (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, struct iatt *stbuf, int32_t valid, dict_t *xdata);
+
+int32_t
+posix_discard(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ size_t len, dict_t *xdata);
+
+int32_t
+posix_zerofill(call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ off_t len, dict_t *xdata);
+
+int32_t
+posix_glfallocate(call_frame_t *frame, xlator_t *this, fd_t *fd,
+ int32_t keep_size, off_t offset, size_t len, dict_t *xdata);
+
+int32_t
+posix_ipc (call_frame_t *frame, xlator_t *this, int32_t op, dict_t *xdata);
+
+int32_t
+posix_seek (call_frame_t *frame, xlator_t *this, fd_t *fd, off_t offset,
+ gf_seek_what_t what, dict_t *xdata);
+
+int32_t
+posix_opendir (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, fd_t *fd, dict_t *xdata);
+
+int32_t
+posix_releasedir (xlator_t *this,
+ fd_t *fd);
+
+int32_t
+posix_readlink (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, size_t size, dict_t *xdata);
+
+int32_t
+posix_truncate (call_frame_t *frame, xlator_t *this, loc_t *loc, off_t offset,
+ dict_t *xdata);
+
+int32_t
+posix_open (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int32_t flags, fd_t *fd, dict_t *xdata);
+
+int
+posix_readv (call_frame_t *frame, xlator_t *this, fd_t *fd, size_t size,
+ off_t offset, uint32_t flags, dict_t *xdata);
+
+int32_t
+posix_writev (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ struct iovec *vector, int32_t count, off_t offset,
+ uint32_t flags, struct iobref *iobref, dict_t *xdata);
+
+int32_t
+posix_statfs (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, dict_t *xdata);
+
+int32_t
+posix_flush (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, dict_t *xdata);
+
+int32_t
+posix_release (xlator_t *this, fd_t *fd);
+
+int32_t
+posix_fsync (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, int32_t datasync, dict_t *xdata);
+
+int32_t
+posix_setxattr (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, dict_t *dict, int flags, dict_t *xdata);
+
+int
+posix_get_ancestry_non_directory (xlator_t *this, inode_t *leaf_inode,
+ gf_dirent_t *head, char **path, int type,
+ int32_t *op_errno, dict_t *xdata);
+
+int
+posix_get_ancestry (xlator_t *this, inode_t *leaf_inode,
+ gf_dirent_t *head, char **path, int type, int32_t *op_errno,
+ dict_t *xdata);
+
+int32_t
+posix_getxattr (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, const char *name, dict_t *xdata);
+
+int32_t
+posix_fgetxattr (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, const char *name, dict_t *xdata);
+
+int32_t
+posix_fsetxattr (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, dict_t *dict, int flags, dict_t *xdata);
+
+int32_t
+posix_removexattr (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, const char *name, dict_t *xdata);
+
+int32_t
+posix_fremovexattr (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, const char *name, dict_t *xdata);
+
+int32_t
+posix_fsyncdir (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, int datasync, dict_t *xdata);
+
+int
+posix_xattrop (call_frame_t *frame, xlator_t *this, loc_t *loc,
+ gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata);
+
+int
+posix_fxattrop (call_frame_t *frame, xlator_t *this, fd_t *fd,
+ gf_xattrop_flags_t optype, dict_t *xattr, dict_t *xdata);
+
+int
+posix_access (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int32_t mask, dict_t *xdata);
+
+int32_t
+posix_ftruncate (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, off_t offset, dict_t *xdata);
+
+int32_t
+posix_fstat (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, dict_t *xdata);
+
+int32_t
+posix_lease (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, struct gf_lease *lease, dict_t *xdata);
+
+int32_t
+posix_lk (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, int32_t cmd, struct gf_flock *lock, dict_t *xdata);
+
+int32_t
+posix_inodelk (call_frame_t *frame, xlator_t *this,
+ const char *volume, loc_t *loc, int32_t cmd,
+ struct gf_flock *lock, dict_t *xdata);
+
+int32_t
+posix_finodelk (call_frame_t *frame, xlator_t *this,
+ const char *volume, fd_t *fd, int32_t cmd,
+ struct gf_flock *lock, dict_t *xdata);
+
+int32_t
+posix_entrylk (call_frame_t *frame, xlator_t *this,
+ const char *volume, loc_t *loc, const char *basename,
+ entrylk_cmd cmd, entrylk_type type, dict_t *xdata);
+
+int32_t
+posix_fentrylk (call_frame_t *frame, xlator_t *this,
+ const char *volume, fd_t *fd, const char *basename,
+ entrylk_cmd cmd, entrylk_type type, dict_t *xdata);
+
+int32_t
+posix_readdir (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, size_t size, off_t off, dict_t *xdata);
+
+int32_t
+posix_readdirp (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, size_t size, off_t off, dict_t *dict);
+
+int32_t
+posix_rchecksum (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, off_t offset, int32_t len, dict_t *xdata);
+
#endif /* _POSIX_H */
generated by cgit (git 2.34.1) at 2024-11-13 00:46:38 +0000