2 Unix SMB/CIFS implementation.
4 Wrap GlusterFS GFAPI calls in vfs functions.
6 Copyright (c) 2013 Anand Avati <avati@redhat.com>
8 This program is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3 of the License, or
11 (at your option) any later version.
13 This program is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with this program. If not, see <http://www.gnu.org/licenses/>.
23 * @file vfs_glusterfs.c
24 * @author Anand Avati <avati@redhat.com>
26 * @brief Samba VFS module for glusterfs
29 * - sendfile/recvfile support
31 * A Samba VFS module for GlusterFS, based on Gluster's libgfapi.
32 * This is a "bottom" vfs module (not something to be stacked on top of
33 * another module), and translates (most) calls to the closest actions
34 * available in libgfapi.
39 #include "smbd/smbd.h"
41 #include <glusterfs/api/glfs.h>
42 #include "lib/util/dlinklist.h"
43 #include "lib/util/tevent_unix.h"
44 #include "smbd/globals.h"
45 #include "lib/util/sys_rw.h"
46 #include "smbprofile.h"
47 #include "modules/posixacl_xattr.h"
48 #include "lib/pthreadpool/pthreadpool_tevent.h"
50 #define DEFAULT_VOLFILE_SERVER "localhost"
51 #define GLUSTER_NAME_MAX 255
54 * Helper to convert struct stat to struct stat_ex.
56 static void smb_stat_ex_from_stat(struct stat_ex *dst, const struct stat *src)
60 dst->st_ex_dev = src->st_dev;
61 dst->st_ex_ino = src->st_ino;
62 dst->st_ex_mode = src->st_mode;
63 dst->st_ex_nlink = src->st_nlink;
64 dst->st_ex_uid = src->st_uid;
65 dst->st_ex_gid = src->st_gid;
66 dst->st_ex_rdev = src->st_rdev;
67 dst->st_ex_size = src->st_size;
68 dst->st_ex_atime.tv_sec = src->st_atime;
69 dst->st_ex_mtime.tv_sec = src->st_mtime;
70 dst->st_ex_ctime.tv_sec = src->st_ctime;
71 dst->st_ex_btime.tv_sec = src->st_mtime;
72 dst->st_ex_blksize = src->st_blksize;
73 dst->st_ex_blocks = src->st_blocks;
74 dst->st_ex_file_id = dst->st_ex_ino;
75 dst->st_ex_iflags |= ST_EX_IFLAG_CALCULATED_FILE_ID;
77 dst->st_ex_atime.tv_nsec = src->st_atime_nsec;
78 dst->st_ex_mtime.tv_nsec = src->st_mtime_nsec;
79 dst->st_ex_ctime.tv_nsec = src->st_ctime_nsec;
80 dst->st_ex_btime.tv_nsec = src->st_mtime_nsec;
82 dst->st_ex_itime = dst->st_ex_btime;
83 dst->st_ex_iflags |= ST_EX_IFLAG_CALCULATED_ITIME;
86 /* pre-opened glfs_t */
88 static struct glfs_preopened {
93 struct glfs_preopened *next, *prev;
97 static int glfs_set_preopened(const char *volume, const char *connectpath, glfs_t *fs)
99 struct glfs_preopened *entry = NULL;
101 entry = talloc_zero(NULL, struct glfs_preopened);
107 entry->volume = talloc_strdup(entry, volume);
108 if (!entry->volume) {
114 entry->connectpath = talloc_strdup(entry, connectpath);
115 if (entry->connectpath == NULL) {
124 DLIST_ADD(glfs_preopened, entry);
129 static glfs_t *glfs_find_preopened(const char *volume, const char *connectpath)
131 struct glfs_preopened *entry = NULL;
133 for (entry = glfs_preopened; entry; entry = entry->next) {
134 if (strcmp(entry->volume, volume) == 0 &&
135 strcmp(entry->connectpath, connectpath) == 0)
145 static void glfs_clear_preopened(glfs_t *fs)
147 struct glfs_preopened *entry = NULL;
149 for (entry = glfs_preopened; entry; entry = entry->next) {
150 if (entry->fs == fs) {
154 DLIST_REMOVE(glfs_preopened, entry);
156 glfs_fini(entry->fs);
162 static int vfs_gluster_set_volfile_servers(glfs_t *fs,
163 const char *volfile_servers)
166 size_t server_count = 0;
167 size_t server_success = 0;
169 TALLOC_CTX *frame = talloc_stackframe();
171 DBG_INFO("servers list %s\n", volfile_servers);
173 while (next_token_talloc(frame, &volfile_servers, &server, " \t")) {
174 char *transport = NULL;
179 DBG_INFO("server %zu %s\n", server_count, server);
181 /* Determine the transport type */
182 if (strncmp(server, "unix+", 5) == 0) {
184 transport = talloc_strdup(frame, "unix");
189 host = talloc_strdup(frame, server + 5);
196 char *port_index = NULL;
198 if (strncmp(server, "tcp+", 4) == 0) {
202 /* IPv6 is enclosed in []
203 * ':' before ']' is part of IPv6
204 * ':' after ']' indicates port
207 if (server[0] == '[') {
209 p = index(server, ']');
218 port_index = index(p, ':');
220 if (port_index == NULL) {
223 port = atoi(port_index + 1);
224 port_index[0] = '\0';
226 transport = talloc_strdup(frame, "tcp");
231 host = talloc_strdup(frame, server);
238 DBG_INFO("Calling set volfile server with params "
239 "transport=%s, host=%s, port=%d\n", transport,
242 ret = glfs_set_volfile_server(fs, transport, host, port);
244 DBG_WARNING("Failed to set volfile_server "
245 "transport=%s, host=%s, port=%d (%s)\n",
246 transport, host, port, strerror(errno));
253 if (server_count == 0) {
255 } else if (server_success < server_count) {
256 DBG_WARNING("Failed to set %zu out of %zu servers parsed\n",
257 server_count - server_success, server_count);
265 /* Disk Operations */
267 static int check_for_write_behind_translator(TALLOC_CTX *mem_ctx,
276 bool write_behind_present = false;
280 ret = glfs_get_volfile(fs, NULL, 0);
282 DBG_ERR("%s: Failed to get volfile for "
283 "volume (%s): No volfile\n",
289 DBG_ERR("%s: Invalid return %d for glfs_get_volfile for "
290 "volume (%s): No volfile\n",
299 buf = talloc_zero_array(mem_ctx, char, newlen);
304 ret = glfs_get_volfile(fs, buf, newlen);
307 DBG_ERR("%s: Failed to get volfile for volume (%s)\n",
308 volume, strerror(errno));
312 option = talloc_asprintf(mem_ctx, "volume %s-write-behind", volume);
313 if (option == NULL) {
319 * file_lines_parse() plays horrible tricks with
320 * the passed-in talloc pointers and the hierarcy
321 * which makes freeing hard to get right.
323 * As we know mem_ctx is freed by the caller, after
324 * this point don't free on exit and let the caller
325 * handle it. This violates good Samba coding practice
326 * but we know we're not leaking here.
329 lines = file_lines_parse(buf,
333 if (lines == NULL || numlines <= 0) {
336 /* On success, buf is now a talloc child of lines !! */
338 for (i=0; i < numlines; i++) {
339 if (strequal(lines[i], option)) {
340 write_behind_present = true;
345 if (write_behind_present) {
346 DBG_ERR("Write behind translator is enabled for "
347 "volume (%s), refusing to connect! "
348 "Please turn off the write behind translator by calling "
349 "'gluster volume set %s performance.write-behind off' "
350 "on the commandline. "
351 "Check the vfs_glusterfs(8) manpage for "
352 "further details.\n",
360 static int vfs_gluster_connect(struct vfs_handle_struct *handle,
364 const struct loadparm_substitution *lp_sub =
365 loadparm_s3_global_substitution();
366 const char *volfile_servers;
373 bool write_behind_pass_through_set = false;
375 tmp_ctx = talloc_new(NULL);
376 if (tmp_ctx == NULL) {
380 logfile = lp_parm_substituted_string(tmp_ctx,
387 loglevel = lp_parm_int(SNUM(handle->conn), "glusterfs", "loglevel", -1);
389 volfile_servers = lp_parm_substituted_string(tmp_ctx,
395 if (volfile_servers == NULL) {
396 volfile_servers = DEFAULT_VOLFILE_SERVER;
399 volume = lp_parm_const_string(SNUM(handle->conn), "glusterfs", "volume",
401 if (volume == NULL) {
405 fs = glfs_find_preopened(volume, handle->conn->connectpath);
410 fs = glfs_new(volume);
416 ret = vfs_gluster_set_volfile_servers(fs, volfile_servers);
418 DBG_ERR("Failed to set volfile_servers from list %s\n",
423 ret = glfs_set_xlator_option(fs, "*-md-cache", "cache-posix-acl",
426 DEBUG(0, ("%s: Failed to set xlator options\n", volume));
430 ret = glfs_set_xlator_option(fs, "*-md-cache", "cache-selinux",
433 DEBUG(0, ("%s: Failed to set xlator options\n", volume));
437 ret = glfs_set_xlator_option(fs, "*-snapview-client",
438 "snapdir-entry-path",
439 handle->conn->connectpath);
441 DEBUG(0, ("%s: Failed to set xlator option:"
442 " snapdir-entry-path\n", volume));
446 #ifdef HAVE_GFAPI_VER_7_9
447 ret = glfs_set_xlator_option(fs, "*-write-behind", "pass-through",
450 DBG_ERR("%s: Failed to set xlator option: pass-through\n",
454 write_behind_pass_through_set = true;
457 ret = glfs_set_logging(fs, logfile, loglevel);
459 DEBUG(0, ("%s: Failed to set logfile %s loglevel %d\n",
460 volume, logfile, loglevel));
466 DEBUG(0, ("%s: Failed to initialize volume (%s)\n",
467 volume, strerror(errno)));
471 if (!write_behind_pass_through_set) {
472 ret = check_for_write_behind_translator(tmp_ctx, fs, volume);
478 ret = glfs_set_preopened(volume, handle->conn->connectpath, fs);
480 DEBUG(0, ("%s: Failed to register volume (%s)\n",
481 volume, strerror(errno)));
486 * The shadow_copy2 module will fail to export subdirectories
487 * of a gluster volume unless we specify the mount point,
488 * because the detection fails if the file system is not
490 * https://bugzilla.samba.org/show_bug.cgi?id=13091
492 lp_do_parameter(SNUM(handle->conn), "shadow:mountpoint", "/");
495 * Unless we have an async implementation of getxattrat turn this off.
497 lp_do_parameter(SNUM(handle->conn), "smbd async dosmode", "false");
504 DBG_ERR("%s: Initialized volume from servers %s\n",
505 volume, volfile_servers);
508 talloc_free(tmp_ctx);
512 static void vfs_gluster_disconnect(struct vfs_handle_struct *handle)
518 glfs_clear_preopened(fs);
521 static uint64_t vfs_gluster_disk_free(struct vfs_handle_struct *handle,
522 const struct smb_filename *smb_fname,
527 struct statvfs statvfs = { 0, };
530 ret = glfs_statvfs(handle->data, smb_fname->base_name, &statvfs);
535 if (bsize_p != NULL) {
536 *bsize_p = (uint64_t)statvfs.f_bsize; /* Block size */
538 if (dfree_p != NULL) {
539 *dfree_p = (uint64_t)statvfs.f_bavail; /* Available Block units */
541 if (dsize_p != NULL) {
542 *dsize_p = (uint64_t)statvfs.f_blocks; /* Total Block units */
545 return (uint64_t)statvfs.f_bavail;
548 static int vfs_gluster_get_quota(struct vfs_handle_struct *handle,
549 const struct smb_filename *smb_fname,
550 enum SMB_QUOTA_TYPE qtype,
559 vfs_gluster_set_quota(struct vfs_handle_struct *handle,
560 enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt)
566 static int vfs_gluster_statvfs(struct vfs_handle_struct *handle,
567 const struct smb_filename *smb_fname,
568 struct vfs_statvfs_struct *vfs_statvfs)
570 struct statvfs statvfs = { 0, };
573 ret = glfs_statvfs(handle->data, smb_fname->base_name, &statvfs);
575 DEBUG(0, ("glfs_statvfs(%s) failed: %s\n",
576 smb_fname->base_name, strerror(errno)));
580 ZERO_STRUCTP(vfs_statvfs);
582 vfs_statvfs->OptimalTransferSize = statvfs.f_frsize;
583 vfs_statvfs->BlockSize = statvfs.f_bsize;
584 vfs_statvfs->TotalBlocks = statvfs.f_blocks;
585 vfs_statvfs->BlocksAvail = statvfs.f_bfree;
586 vfs_statvfs->UserBlocksAvail = statvfs.f_bavail;
587 vfs_statvfs->TotalFileNodes = statvfs.f_files;
588 vfs_statvfs->FreeFileNodes = statvfs.f_ffree;
589 vfs_statvfs->FsIdentifier = statvfs.f_fsid;
590 vfs_statvfs->FsCapabilities =
591 FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
596 static uint32_t vfs_gluster_fs_capabilities(struct vfs_handle_struct *handle,
597 enum timestamp_set_resolution *p_ts_res)
599 uint32_t caps = FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
601 #ifdef HAVE_GFAPI_VER_6
602 caps |= FILE_SUPPORTS_SPARSE_FILES;
605 #ifdef STAT_HAVE_NSEC
606 *p_ts_res = TIMESTAMP_SET_NT_OR_BETTER;
612 static glfs_fd_t *vfs_gluster_fetch_glfd(struct vfs_handle_struct *handle,
615 glfs_fd_t **glfd = (glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp);
617 DBG_INFO("Failed to fetch fsp extension\n");
621 DBG_INFO("Empty glfs_fd_t pointer\n");
628 static DIR *vfs_gluster_fdopendir(struct vfs_handle_struct *handle,
629 files_struct *fsp, const char *mask,
632 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
634 DBG_ERR("Failed to fetch gluster fd\n");
641 static int vfs_gluster_closedir(struct vfs_handle_struct *handle, DIR *dirp)
645 START_PROFILE(syscall_closedir);
646 ret = glfs_closedir((void *)dirp);
647 END_PROFILE(syscall_closedir);
652 static struct dirent *vfs_gluster_readdir(struct vfs_handle_struct *handle,
653 struct files_struct *dirfsp,
655 SMB_STRUCT_STAT *sbuf)
657 static char direntbuf[512];
660 struct dirent *dirent = 0;
662 START_PROFILE(syscall_readdir);
664 ret = glfs_readdirplus_r((void *)dirp, &stat, (void *)direntbuf,
667 ret = glfs_readdir_r((void *)dirp, (void *)direntbuf, &dirent);
670 if ((ret < 0) || (dirent == NULL)) {
671 END_PROFILE(syscall_readdir);
676 SET_STAT_INVALID(*sbuf);
677 if (!S_ISLNK(stat.st_mode)) {
678 smb_stat_ex_from_stat(sbuf, &stat);
682 END_PROFILE(syscall_readdir);
686 static long vfs_gluster_telldir(struct vfs_handle_struct *handle, DIR *dirp)
690 START_PROFILE(syscall_telldir);
691 ret = glfs_telldir((void *)dirp);
692 END_PROFILE(syscall_telldir);
697 static void vfs_gluster_seekdir(struct vfs_handle_struct *handle, DIR *dirp,
700 START_PROFILE(syscall_seekdir);
701 glfs_seekdir((void *)dirp, offset);
702 END_PROFILE(syscall_seekdir);
705 static void vfs_gluster_rewinddir(struct vfs_handle_struct *handle, DIR *dirp)
707 START_PROFILE(syscall_rewinddir);
708 glfs_seekdir((void *)dirp, 0);
709 END_PROFILE(syscall_rewinddir);
712 static int vfs_gluster_mkdirat(struct vfs_handle_struct *handle,
713 struct files_struct *dirfsp,
714 const struct smb_filename *smb_fname,
717 struct smb_filename *full_fname = NULL;
720 START_PROFILE(syscall_mkdirat);
722 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
725 if (full_fname == NULL) {
726 END_PROFILE(syscall_mkdirat);
730 ret = glfs_mkdir(handle->data, full_fname->base_name, mode);
732 TALLOC_FREE(full_fname);
734 END_PROFILE(syscall_mkdirat);
739 static int vfs_gluster_openat(struct vfs_handle_struct *handle,
740 const struct files_struct *dirfsp,
741 const struct smb_filename *smb_fname,
746 struct smb_filename *name = NULL;
747 bool became_root = false;
751 START_PROFILE(syscall_openat);
754 * Looks like glfs API doesn't have openat().
756 if (fsp_get_pathref_fd(dirfsp) != AT_FDCWD) {
757 name = full_path_from_dirfsp_atname(talloc_tos(),
766 p_tmp = VFS_ADD_FSP_EXTENSION(handle, fsp, glfs_fd_t *, NULL);
769 END_PROFILE(syscall_openat);
774 if (fsp->fsp_flags.is_pathref) {
776 * ceph doesn't support O_PATH so we have to fallback to
783 if (flags & O_DIRECTORY) {
784 glfd = glfs_opendir(handle->data, smb_fname->base_name);
785 } else if (flags & O_CREAT) {
786 glfd = glfs_creat(handle->data, smb_fname->base_name, flags,
789 glfd = glfs_open(handle->data, smb_fname->base_name, flags);
796 fsp->fsp_flags.have_proc_fds = false;
800 END_PROFILE(syscall_openat);
801 /* no extension destroy_fn, so no need to save errno */
802 VFS_REMOVE_FSP_EXTENSION(handle, fsp);
809 END_PROFILE(syscall_openat);
810 /* An arbitrary value for error reporting, so you know its us. */
814 static int vfs_gluster_close(struct vfs_handle_struct *handle,
818 glfs_fd_t *glfd = NULL;
820 START_PROFILE(syscall_close);
822 glfd = vfs_gluster_fetch_glfd(handle, fsp);
824 END_PROFILE(syscall_close);
825 DBG_ERR("Failed to fetch gluster fd\n");
829 VFS_REMOVE_FSP_EXTENSION(handle, fsp);
831 ret = glfs_close(glfd);
832 END_PROFILE(syscall_close);
837 static ssize_t vfs_gluster_pread(struct vfs_handle_struct *handle,
838 files_struct *fsp, void *data, size_t n,
842 glfs_fd_t *glfd = NULL;
844 START_PROFILE_BYTES(syscall_pread, n);
846 glfd = vfs_gluster_fetch_glfd(handle, fsp);
848 END_PROFILE_BYTES(syscall_pread);
849 DBG_ERR("Failed to fetch gluster fd\n");
853 #ifdef HAVE_GFAPI_VER_7_6
854 ret = glfs_pread(glfd, data, n, offset, 0, NULL);
856 ret = glfs_pread(glfd, data, n, offset, 0);
858 END_PROFILE_BYTES(syscall_pread);
863 struct vfs_gluster_pread_state {
870 struct vfs_aio_state vfs_aio_state;
871 SMBPROFILE_BYTES_ASYNC_STATE(profile_bytes);
874 static void vfs_gluster_pread_do(void *private_data);
875 static void vfs_gluster_pread_done(struct tevent_req *subreq);
876 static int vfs_gluster_pread_state_destructor(struct vfs_gluster_pread_state *state);
878 static struct tevent_req *vfs_gluster_pread_send(struct vfs_handle_struct
879 *handle, TALLOC_CTX *mem_ctx,
880 struct tevent_context *ev,
882 void *data, size_t n,
885 struct vfs_gluster_pread_state *state;
886 struct tevent_req *req, *subreq;
888 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
890 DBG_ERR("Failed to fetch gluster fd\n");
894 req = tevent_req_create(mem_ctx, &state, struct vfs_gluster_pread_state);
903 state->offset = offset;
905 SMBPROFILE_BYTES_ASYNC_START(syscall_asys_pread, profile_p,
906 state->profile_bytes, n);
907 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
909 subreq = pthreadpool_tevent_job_send(
910 state, ev, handle->conn->sconn->pool,
911 vfs_gluster_pread_do, state);
912 if (tevent_req_nomem(subreq, req)) {
913 return tevent_req_post(req, ev);
915 tevent_req_set_callback(subreq, vfs_gluster_pread_done, req);
917 talloc_set_destructor(state, vfs_gluster_pread_state_destructor);
922 static void vfs_gluster_pread_do(void *private_data)
924 struct vfs_gluster_pread_state *state = talloc_get_type_abort(
925 private_data, struct vfs_gluster_pread_state);
926 struct timespec start_time;
927 struct timespec end_time;
929 SMBPROFILE_BYTES_ASYNC_SET_BUSY(state->profile_bytes);
931 PROFILE_TIMESTAMP(&start_time);
934 #ifdef HAVE_GFAPI_VER_7_6
935 state->ret = glfs_pread(state->fd, state->buf, state->count,
936 state->offset, 0, NULL);
938 state->ret = glfs_pread(state->fd, state->buf, state->count,
941 } while ((state->ret == -1) && (errno == EINTR));
943 if (state->ret == -1) {
944 state->vfs_aio_state.error = errno;
947 PROFILE_TIMESTAMP(&end_time);
949 state->vfs_aio_state.duration = nsec_time_diff(&end_time, &start_time);
951 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
954 static int vfs_gluster_pread_state_destructor(struct vfs_gluster_pread_state *state)
959 static void vfs_gluster_pread_done(struct tevent_req *subreq)
961 struct tevent_req *req = tevent_req_callback_data(
962 subreq, struct tevent_req);
963 struct vfs_gluster_pread_state *state = tevent_req_data(
964 req, struct vfs_gluster_pread_state);
967 ret = pthreadpool_tevent_job_recv(subreq);
969 SMBPROFILE_BYTES_ASYNC_END(state->profile_bytes);
970 talloc_set_destructor(state, NULL);
973 tevent_req_error(req, ret);
977 * If we get EAGAIN from pthreadpool_tevent_job_recv() this
978 * means the lower level pthreadpool failed to create a new
979 * thread. Fallback to sync processing in that case to allow
980 * some progress for the client.
982 vfs_gluster_pread_do(state);
985 tevent_req_done(req);
988 static ssize_t vfs_gluster_pread_recv(struct tevent_req *req,
989 struct vfs_aio_state *vfs_aio_state)
991 struct vfs_gluster_pread_state *state = tevent_req_data(
992 req, struct vfs_gluster_pread_state);
994 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
998 *vfs_aio_state = state->vfs_aio_state;
1002 struct vfs_gluster_pwrite_state {
1009 struct vfs_aio_state vfs_aio_state;
1010 SMBPROFILE_BYTES_ASYNC_STATE(profile_bytes);
1013 static void vfs_gluster_pwrite_do(void *private_data);
1014 static void vfs_gluster_pwrite_done(struct tevent_req *subreq);
1015 static int vfs_gluster_pwrite_state_destructor(struct vfs_gluster_pwrite_state *state);
1017 static struct tevent_req *vfs_gluster_pwrite_send(struct vfs_handle_struct
1018 *handle, TALLOC_CTX *mem_ctx,
1019 struct tevent_context *ev,
1021 const void *data, size_t n,
1024 struct tevent_req *req, *subreq;
1025 struct vfs_gluster_pwrite_state *state;
1027 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
1029 DBG_ERR("Failed to fetch gluster fd\n");
1033 req = tevent_req_create(mem_ctx, &state, struct vfs_gluster_pwrite_state);
1042 state->offset = offset;
1044 SMBPROFILE_BYTES_ASYNC_START(syscall_asys_pwrite, profile_p,
1045 state->profile_bytes, n);
1046 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
1048 subreq = pthreadpool_tevent_job_send(
1049 state, ev, handle->conn->sconn->pool,
1050 vfs_gluster_pwrite_do, state);
1051 if (tevent_req_nomem(subreq, req)) {
1052 return tevent_req_post(req, ev);
1054 tevent_req_set_callback(subreq, vfs_gluster_pwrite_done, req);
1056 talloc_set_destructor(state, vfs_gluster_pwrite_state_destructor);
1061 static void vfs_gluster_pwrite_do(void *private_data)
1063 struct vfs_gluster_pwrite_state *state = talloc_get_type_abort(
1064 private_data, struct vfs_gluster_pwrite_state);
1065 struct timespec start_time;
1066 struct timespec end_time;
1068 SMBPROFILE_BYTES_ASYNC_SET_BUSY(state->profile_bytes);
1070 PROFILE_TIMESTAMP(&start_time);
1073 #ifdef HAVE_GFAPI_VER_7_6
1074 state->ret = glfs_pwrite(state->fd, state->buf, state->count,
1075 state->offset, 0, NULL, NULL);
1077 state->ret = glfs_pwrite(state->fd, state->buf, state->count,
1080 } while ((state->ret == -1) && (errno == EINTR));
1082 if (state->ret == -1) {
1083 state->vfs_aio_state.error = errno;
1086 PROFILE_TIMESTAMP(&end_time);
1088 state->vfs_aio_state.duration = nsec_time_diff(&end_time, &start_time);
1090 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
1093 static int vfs_gluster_pwrite_state_destructor(struct vfs_gluster_pwrite_state *state)
1098 static void vfs_gluster_pwrite_done(struct tevent_req *subreq)
1100 struct tevent_req *req = tevent_req_callback_data(
1101 subreq, struct tevent_req);
1102 struct vfs_gluster_pwrite_state *state = tevent_req_data(
1103 req, struct vfs_gluster_pwrite_state);
1106 ret = pthreadpool_tevent_job_recv(subreq);
1107 TALLOC_FREE(subreq);
1108 SMBPROFILE_BYTES_ASYNC_END(state->profile_bytes);
1109 talloc_set_destructor(state, NULL);
1111 if (ret != EAGAIN) {
1112 tevent_req_error(req, ret);
1116 * If we get EAGAIN from pthreadpool_tevent_job_recv() this
1117 * means the lower level pthreadpool failed to create a new
1118 * thread. Fallback to sync processing in that case to allow
1119 * some progress for the client.
1121 vfs_gluster_pwrite_do(state);
1124 tevent_req_done(req);
1127 static ssize_t vfs_gluster_pwrite_recv(struct tevent_req *req,
1128 struct vfs_aio_state *vfs_aio_state)
1130 struct vfs_gluster_pwrite_state *state = tevent_req_data(
1131 req, struct vfs_gluster_pwrite_state);
1133 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
1137 *vfs_aio_state = state->vfs_aio_state;
1142 static ssize_t vfs_gluster_pwrite(struct vfs_handle_struct *handle,
1143 files_struct *fsp, const void *data,
1144 size_t n, off_t offset)
1147 glfs_fd_t *glfd = NULL;
1149 START_PROFILE_BYTES(syscall_pwrite, n);
1151 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1153 END_PROFILE_BYTES(syscall_pwrite);
1154 DBG_ERR("Failed to fetch gluster fd\n");
1158 #ifdef HAVE_GFAPI_VER_7_6
1159 ret = glfs_pwrite(glfd, data, n, offset, 0, NULL, NULL);
1161 ret = glfs_pwrite(glfd, data, n, offset, 0);
1163 END_PROFILE_BYTES(syscall_pwrite);
1168 static off_t vfs_gluster_lseek(struct vfs_handle_struct *handle,
1169 files_struct *fsp, off_t offset, int whence)
1172 glfs_fd_t *glfd = NULL;
1174 START_PROFILE(syscall_lseek);
1176 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1178 END_PROFILE(syscall_lseek);
1179 DBG_ERR("Failed to fetch gluster fd\n");
1183 ret = glfs_lseek(glfd, offset, whence);
1184 END_PROFILE(syscall_lseek);
1189 static ssize_t vfs_gluster_sendfile(struct vfs_handle_struct *handle, int tofd,
1190 files_struct *fromfsp,
1191 const DATA_BLOB *hdr,
1192 off_t offset, size_t n)
1198 static ssize_t vfs_gluster_recvfile(struct vfs_handle_struct *handle,
1199 int fromfd, files_struct *tofsp,
1200 off_t offset, size_t n)
1206 static int vfs_gluster_renameat(struct vfs_handle_struct *handle,
1207 files_struct *srcfsp,
1208 const struct smb_filename *smb_fname_src,
1209 files_struct *dstfsp,
1210 const struct smb_filename *smb_fname_dst)
1214 START_PROFILE(syscall_renameat);
1215 ret = glfs_rename(handle->data, smb_fname_src->base_name,
1216 smb_fname_dst->base_name);
1217 END_PROFILE(syscall_renameat);
1222 struct vfs_gluster_fsync_state {
1226 struct vfs_aio_state vfs_aio_state;
1227 SMBPROFILE_BYTES_ASYNC_STATE(profile_bytes);
1230 static void vfs_gluster_fsync_do(void *private_data);
1231 static void vfs_gluster_fsync_done(struct tevent_req *subreq);
1232 static int vfs_gluster_fsync_state_destructor(struct vfs_gluster_fsync_state *state);
1234 static struct tevent_req *vfs_gluster_fsync_send(struct vfs_handle_struct
1235 *handle, TALLOC_CTX *mem_ctx,
1236 struct tevent_context *ev,
1239 struct tevent_req *req, *subreq;
1240 struct vfs_gluster_fsync_state *state;
1242 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
1244 DBG_ERR("Failed to fetch gluster fd\n");
1248 req = tevent_req_create(mem_ctx, &state, struct vfs_gluster_fsync_state);
1256 SMBPROFILE_BYTES_ASYNC_START(syscall_asys_fsync, profile_p,
1257 state->profile_bytes, 0);
1258 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
1260 subreq = pthreadpool_tevent_job_send(
1261 state, ev, handle->conn->sconn->pool, vfs_gluster_fsync_do, state);
1262 if (tevent_req_nomem(subreq, req)) {
1263 return tevent_req_post(req, ev);
1265 tevent_req_set_callback(subreq, vfs_gluster_fsync_done, req);
1267 talloc_set_destructor(state, vfs_gluster_fsync_state_destructor);
1272 static void vfs_gluster_fsync_do(void *private_data)
1274 struct vfs_gluster_fsync_state *state = talloc_get_type_abort(
1275 private_data, struct vfs_gluster_fsync_state);
1276 struct timespec start_time;
1277 struct timespec end_time;
1279 SMBPROFILE_BYTES_ASYNC_SET_BUSY(state->profile_bytes);
1281 PROFILE_TIMESTAMP(&start_time);
1284 #ifdef HAVE_GFAPI_VER_7_6
1285 state->ret = glfs_fsync(state->fd, NULL, NULL);
1287 state->ret = glfs_fsync(state->fd);
1289 } while ((state->ret == -1) && (errno == EINTR));
1291 if (state->ret == -1) {
1292 state->vfs_aio_state.error = errno;
1295 PROFILE_TIMESTAMP(&end_time);
1297 state->vfs_aio_state.duration = nsec_time_diff(&end_time, &start_time);
1299 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
1302 static int vfs_gluster_fsync_state_destructor(struct vfs_gluster_fsync_state *state)
1307 static void vfs_gluster_fsync_done(struct tevent_req *subreq)
1309 struct tevent_req *req = tevent_req_callback_data(
1310 subreq, struct tevent_req);
1311 struct vfs_gluster_fsync_state *state = tevent_req_data(
1312 req, struct vfs_gluster_fsync_state);
1315 ret = pthreadpool_tevent_job_recv(subreq);
1316 TALLOC_FREE(subreq);
1317 SMBPROFILE_BYTES_ASYNC_END(state->profile_bytes);
1318 talloc_set_destructor(state, NULL);
1320 if (ret != EAGAIN) {
1321 tevent_req_error(req, ret);
1325 * If we get EAGAIN from pthreadpool_tevent_job_recv() this
1326 * means the lower level pthreadpool failed to create a new
1327 * thread. Fallback to sync processing in that case to allow
1328 * some progress for the client.
1330 vfs_gluster_fsync_do(state);
1333 tevent_req_done(req);
1336 static int vfs_gluster_fsync_recv(struct tevent_req *req,
1337 struct vfs_aio_state *vfs_aio_state)
1339 struct vfs_gluster_fsync_state *state = tevent_req_data(
1340 req, struct vfs_gluster_fsync_state);
1342 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
1346 *vfs_aio_state = state->vfs_aio_state;
1350 static int vfs_gluster_stat(struct vfs_handle_struct *handle,
1351 struct smb_filename *smb_fname)
1356 START_PROFILE(syscall_stat);
1357 ret = glfs_stat(handle->data, smb_fname->base_name, &st);
1359 smb_stat_ex_from_stat(&smb_fname->st, &st);
1361 if (ret < 0 && errno != ENOENT) {
1362 DEBUG(0, ("glfs_stat(%s) failed: %s\n",
1363 smb_fname->base_name, strerror(errno)));
1365 END_PROFILE(syscall_stat);
1370 static int vfs_gluster_fstat(struct vfs_handle_struct *handle,
1371 files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1375 glfs_fd_t *glfd = NULL;
1377 START_PROFILE(syscall_fstat);
1379 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1381 END_PROFILE(syscall_fstat);
1382 DBG_ERR("Failed to fetch gluster fd\n");
1386 ret = glfs_fstat(glfd, &st);
1388 smb_stat_ex_from_stat(sbuf, &st);
1391 DEBUG(0, ("glfs_fstat(%d) failed: %s\n",
1392 fsp_get_io_fd(fsp), strerror(errno)));
1394 END_PROFILE(syscall_fstat);
1399 static int vfs_gluster_lstat(struct vfs_handle_struct *handle,
1400 struct smb_filename *smb_fname)
1405 START_PROFILE(syscall_lstat);
1406 ret = glfs_lstat(handle->data, smb_fname->base_name, &st);
1408 smb_stat_ex_from_stat(&smb_fname->st, &st);
1410 if (ret < 0 && errno != ENOENT) {
1411 DEBUG(0, ("glfs_lstat(%s) failed: %s\n",
1412 smb_fname->base_name, strerror(errno)));
1414 END_PROFILE(syscall_lstat);
1419 static uint64_t vfs_gluster_get_alloc_size(struct vfs_handle_struct *handle,
1421 const SMB_STRUCT_STAT *sbuf)
1425 START_PROFILE(syscall_get_alloc_size);
1426 ret = sbuf->st_ex_blocks * 512;
1427 END_PROFILE(syscall_get_alloc_size);
1432 static int vfs_gluster_unlinkat(struct vfs_handle_struct *handle,
1433 struct files_struct *dirfsp,
1434 const struct smb_filename *smb_fname,
1437 struct smb_filename *full_fname = NULL;
1440 START_PROFILE(syscall_unlinkat);
1442 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1445 if (full_fname == NULL) {
1446 END_PROFILE(syscall_unlinkat);
1450 if (flags & AT_REMOVEDIR) {
1451 ret = glfs_rmdir(handle->data, full_fname->base_name);
1453 ret = glfs_unlink(handle->data, full_fname->base_name);
1455 TALLOC_FREE(full_fname);
1456 END_PROFILE(syscall_unlinkat);
1461 static int vfs_gluster_chmod(struct vfs_handle_struct *handle,
1462 const struct smb_filename *smb_fname,
1467 START_PROFILE(syscall_chmod);
1468 ret = glfs_chmod(handle->data, smb_fname->base_name, mode);
1469 END_PROFILE(syscall_chmod);
1474 static int vfs_gluster_fchmod(struct vfs_handle_struct *handle,
1475 files_struct *fsp, mode_t mode)
1478 glfs_fd_t *glfd = NULL;
1480 START_PROFILE(syscall_fchmod);
1482 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1484 END_PROFILE(syscall_fchmod);
1485 DBG_ERR("Failed to fetch gluster fd\n");
1489 ret = glfs_fchmod(glfd, mode);
1490 END_PROFILE(syscall_fchmod);
1495 static int vfs_gluster_fchown(struct vfs_handle_struct *handle,
1496 files_struct *fsp, uid_t uid, gid_t gid)
1499 glfs_fd_t *glfd = NULL;
1501 START_PROFILE(syscall_fchown);
1503 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1505 END_PROFILE(syscall_fchown);
1506 DBG_ERR("Failed to fetch gluster fd\n");
1510 ret = glfs_fchown(glfd, uid, gid);
1511 END_PROFILE(syscall_fchown);
1516 static int vfs_gluster_lchown(struct vfs_handle_struct *handle,
1517 const struct smb_filename *smb_fname,
1523 START_PROFILE(syscall_lchown);
1524 ret = glfs_lchown(handle->data, smb_fname->base_name, uid, gid);
1525 END_PROFILE(syscall_lchown);
1530 static int vfs_gluster_chdir(struct vfs_handle_struct *handle,
1531 const struct smb_filename *smb_fname)
1535 START_PROFILE(syscall_chdir);
1536 ret = glfs_chdir(handle->data, smb_fname->base_name);
1537 END_PROFILE(syscall_chdir);
1542 static struct smb_filename *vfs_gluster_getwd(struct vfs_handle_struct *handle,
1545 char cwd[PATH_MAX] = { '\0' };
1547 struct smb_filename *smb_fname = NULL;
1549 START_PROFILE(syscall_getwd);
1551 ret = glfs_getcwd(handle->data, cwd, PATH_MAX - 1);
1552 END_PROFILE(syscall_getwd);
1557 smb_fname = synthetic_smb_fname(ctx,
1566 static int vfs_gluster_ntimes(struct vfs_handle_struct *handle,
1567 const struct smb_filename *smb_fname,
1568 struct smb_file_time *ft)
1571 struct timespec times[2];
1573 START_PROFILE(syscall_ntimes);
1575 if (is_omit_timespec(&ft->atime)) {
1576 times[0].tv_sec = smb_fname->st.st_ex_atime.tv_sec;
1577 times[0].tv_nsec = smb_fname->st.st_ex_atime.tv_nsec;
1579 times[0].tv_sec = ft->atime.tv_sec;
1580 times[0].tv_nsec = ft->atime.tv_nsec;
1583 if (is_omit_timespec(&ft->mtime)) {
1584 times[1].tv_sec = smb_fname->st.st_ex_mtime.tv_sec;
1585 times[1].tv_nsec = smb_fname->st.st_ex_mtime.tv_nsec;
1587 times[1].tv_sec = ft->mtime.tv_sec;
1588 times[1].tv_nsec = ft->mtime.tv_nsec;
1591 if ((timespec_compare(×[0],
1592 &smb_fname->st.st_ex_atime) == 0) &&
1593 (timespec_compare(×[1],
1594 &smb_fname->st.st_ex_mtime) == 0)) {
1595 END_PROFILE(syscall_ntimes);
1599 ret = glfs_utimens(handle->data, smb_fname->base_name, times);
1600 END_PROFILE(syscall_ntimes);
1605 static int vfs_gluster_ftruncate(struct vfs_handle_struct *handle,
1606 files_struct *fsp, off_t offset)
1609 glfs_fd_t *glfd = NULL;
1611 START_PROFILE(syscall_ftruncate);
1613 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1615 END_PROFILE(syscall_ftruncate);
1616 DBG_ERR("Failed to fetch gluster fd\n");
1620 #ifdef HAVE_GFAPI_VER_7_6
1621 ret = glfs_ftruncate(glfd, offset, NULL, NULL);
1623 ret = glfs_ftruncate(glfd, offset);
1625 END_PROFILE(syscall_ftruncate);
1630 static int vfs_gluster_fallocate(struct vfs_handle_struct *handle,
1631 struct files_struct *fsp,
1633 off_t offset, off_t len)
1636 #ifdef HAVE_GFAPI_VER_6
1637 glfs_fd_t *glfd = NULL;
1638 int keep_size, punch_hole;
1640 START_PROFILE(syscall_fallocate);
1642 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1644 END_PROFILE(syscall_fallocate);
1645 DBG_ERR("Failed to fetch gluster fd\n");
1649 keep_size = mode & VFS_FALLOCATE_FL_KEEP_SIZE;
1650 punch_hole = mode & VFS_FALLOCATE_FL_PUNCH_HOLE;
1652 mode &= ~(VFS_FALLOCATE_FL_KEEP_SIZE|VFS_FALLOCATE_FL_PUNCH_HOLE);
1654 END_PROFILE(syscall_fallocate);
1660 ret = glfs_discard(glfd, offset, len);
1662 DBG_DEBUG("glfs_discard failed: %s\n",
1667 ret = glfs_fallocate(glfd, keep_size, offset, len);
1668 END_PROFILE(syscall_fallocate);
1676 static struct smb_filename *vfs_gluster_realpath(struct vfs_handle_struct *handle,
1678 const struct smb_filename *smb_fname)
1680 char *result = NULL;
1681 struct smb_filename *result_fname = NULL;
1682 char *resolved_path = NULL;
1684 START_PROFILE(syscall_realpath);
1686 resolved_path = SMB_MALLOC_ARRAY(char, PATH_MAX+1);
1687 if (resolved_path == NULL) {
1688 END_PROFILE(syscall_realpath);
1693 result = glfs_realpath(handle->data,
1694 smb_fname->base_name,
1696 if (result != NULL) {
1697 result_fname = synthetic_smb_fname(ctx,
1705 SAFE_FREE(resolved_path);
1706 END_PROFILE(syscall_realpath);
1708 return result_fname;
1711 static bool vfs_gluster_lock(struct vfs_handle_struct *handle,
1712 files_struct *fsp, int op, off_t offset,
1713 off_t count, int type)
1715 struct flock flock = { 0, };
1717 glfs_fd_t *glfd = NULL;
1720 START_PROFILE(syscall_fcntl_lock);
1722 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1724 DBG_ERR("Failed to fetch gluster fd\n");
1729 flock.l_type = type;
1730 flock.l_whence = SEEK_SET;
1731 flock.l_start = offset;
1732 flock.l_len = count;
1735 ret = glfs_posix_lock(glfd, op, &flock);
1737 if (op == F_GETLK) {
1738 /* lock query, true if someone else has locked */
1740 (flock.l_type != F_UNLCK) &&
1741 (flock.l_pid != 0) && (flock.l_pid != getpid())) {
1757 END_PROFILE(syscall_fcntl_lock);
1762 static int vfs_gluster_kernel_flock(struct vfs_handle_struct *handle,
1763 files_struct *fsp, uint32_t share_access,
1764 uint32_t access_mask)
1770 static int vfs_gluster_fcntl(vfs_handle_struct *handle,
1771 files_struct *fsp, int cmd, va_list cmd_arg)
1774 * SMB_VFS_FCNTL() is currently only called by vfs_set_blocking() to
1775 * clear O_NONBLOCK, etc for LOCK_MAND and FIFOs. Ignore it.
1777 if (cmd == F_GETFL) {
1779 } else if (cmd == F_SETFL) {
1780 va_list dup_cmd_arg;
1783 va_copy(dup_cmd_arg, cmd_arg);
1784 opt = va_arg(dup_cmd_arg, int);
1785 va_end(dup_cmd_arg);
1789 DBG_ERR("unexpected fcntl SETFL(%d)\n", opt);
1792 DBG_ERR("unexpected fcntl: %d\n", cmd);
1798 static int vfs_gluster_linux_setlease(struct vfs_handle_struct *handle,
1799 files_struct *fsp, int leasetype)
1805 static bool vfs_gluster_getlock(struct vfs_handle_struct *handle,
1806 files_struct *fsp, off_t *poffset,
1807 off_t *pcount, int *ptype, pid_t *ppid)
1809 struct flock flock = { 0, };
1811 glfs_fd_t *glfd = NULL;
1813 START_PROFILE(syscall_fcntl_getlock);
1815 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1817 END_PROFILE(syscall_fcntl_getlock);
1818 DBG_ERR("Failed to fetch gluster fd\n");
1822 flock.l_type = *ptype;
1823 flock.l_whence = SEEK_SET;
1824 flock.l_start = *poffset;
1825 flock.l_len = *pcount;
1828 ret = glfs_posix_lock(glfd, F_GETLK, &flock);
1831 END_PROFILE(syscall_fcntl_getlock);
1835 *ptype = flock.l_type;
1836 *poffset = flock.l_start;
1837 *pcount = flock.l_len;
1838 *ppid = flock.l_pid;
1839 END_PROFILE(syscall_fcntl_getlock);
1844 static int vfs_gluster_symlinkat(struct vfs_handle_struct *handle,
1845 const struct smb_filename *link_target,
1846 struct files_struct *dirfsp,
1847 const struct smb_filename *new_smb_fname)
1849 struct smb_filename *full_fname = NULL;
1852 START_PROFILE(syscall_symlinkat);
1854 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1857 if (full_fname == NULL) {
1858 END_PROFILE(syscall_symlinkat);
1862 ret = glfs_symlink(handle->data,
1863 link_target->base_name,
1864 full_fname->base_name);
1866 TALLOC_FREE(full_fname);
1868 END_PROFILE(syscall_symlinkat);
1873 static int vfs_gluster_readlinkat(struct vfs_handle_struct *handle,
1874 const struct files_struct *dirfsp,
1875 const struct smb_filename *smb_fname,
1879 struct smb_filename *full_fname = NULL;
1882 START_PROFILE(syscall_readlinkat);
1884 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1887 if (full_fname == NULL) {
1888 END_PROFILE(syscall_readlinkat);
1892 ret = glfs_readlink(handle->data, full_fname->base_name, buf, bufsiz);
1894 TALLOC_FREE(full_fname);
1896 END_PROFILE(syscall_readlinkat);
1901 static int vfs_gluster_linkat(struct vfs_handle_struct *handle,
1902 files_struct *srcfsp,
1903 const struct smb_filename *old_smb_fname,
1904 files_struct *dstfsp,
1905 const struct smb_filename *new_smb_fname,
1909 struct smb_filename *full_fname_old = NULL;
1910 struct smb_filename *full_fname_new = NULL;
1912 START_PROFILE(syscall_linkat);
1914 full_fname_old = full_path_from_dirfsp_atname(talloc_tos(),
1917 if (full_fname_old == NULL) {
1918 END_PROFILE(syscall_linkat);
1921 full_fname_new = full_path_from_dirfsp_atname(talloc_tos(),
1924 if (full_fname_new == NULL) {
1925 TALLOC_FREE(full_fname_old);
1926 END_PROFILE(syscall_linkat);
1930 ret = glfs_link(handle->data,
1931 full_fname_old->base_name,
1932 full_fname_new->base_name);
1934 TALLOC_FREE(full_fname_old);
1935 TALLOC_FREE(full_fname_new);
1936 END_PROFILE(syscall_linkat);
1941 static int vfs_gluster_mknodat(struct vfs_handle_struct *handle,
1942 files_struct *dirfsp,
1943 const struct smb_filename *smb_fname,
1947 struct smb_filename *full_fname = NULL;
1950 START_PROFILE(syscall_mknodat);
1952 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1955 if (full_fname == NULL) {
1956 END_PROFILE(syscall_mknodat);
1960 ret = glfs_mknod(handle->data, full_fname->base_name, mode, dev);
1962 TALLOC_FREE(full_fname);
1964 END_PROFILE(syscall_mknodat);
1969 static int vfs_gluster_chflags(struct vfs_handle_struct *handle,
1970 const struct smb_filename *smb_fname,
1977 static int vfs_gluster_get_real_filename(struct vfs_handle_struct *handle,
1978 const struct smb_filename *path,
1980 TALLOC_CTX *mem_ctx,
1984 char key_buf[GLUSTER_NAME_MAX + 64];
1985 char val_buf[GLUSTER_NAME_MAX + 1];
1987 if (strlen(name) >= GLUSTER_NAME_MAX) {
1988 errno = ENAMETOOLONG;
1992 snprintf(key_buf, GLUSTER_NAME_MAX + 64,
1993 "glusterfs.get_real_filename:%s", name);
1995 ret = glfs_getxattr(handle->data, path->base_name, key_buf, val_buf,
1996 GLUSTER_NAME_MAX + 1);
1998 if (errno == ENOATTR) {
2004 *found_name = talloc_strdup(mem_ctx, val_buf);
2005 if (found_name[0] == NULL) {
2012 static const char *vfs_gluster_connectpath(struct vfs_handle_struct *handle,
2013 const struct smb_filename *smb_fname)
2015 return handle->conn->connectpath;
2020 static ssize_t vfs_gluster_getxattr(struct vfs_handle_struct *handle,
2021 const struct smb_filename *smb_fname,
2026 return glfs_getxattr(handle->data, smb_fname->base_name,
2030 static ssize_t vfs_gluster_fgetxattr(struct vfs_handle_struct *handle,
2031 files_struct *fsp, const char *name,
2032 void *value, size_t size)
2034 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
2036 DBG_ERR("Failed to fetch gluster fd\n");
2040 return glfs_fgetxattr(glfd, name, value, size);
2043 static ssize_t vfs_gluster_flistxattr(struct vfs_handle_struct *handle,
2044 files_struct *fsp, char *list,
2047 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
2049 DBG_ERR("Failed to fetch gluster fd\n");
2053 return glfs_flistxattr(glfd, list, size);
2056 static int vfs_gluster_removexattr(struct vfs_handle_struct *handle,
2057 const struct smb_filename *smb_fname,
2060 return glfs_removexattr(handle->data, smb_fname->base_name, name);
2063 static int vfs_gluster_fremovexattr(struct vfs_handle_struct *handle,
2064 files_struct *fsp, const char *name)
2066 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
2068 DBG_ERR("Failed to fetch gluster fd\n");
2072 return glfs_fremovexattr(glfd, name);
2075 static int vfs_gluster_fsetxattr(struct vfs_handle_struct *handle,
2076 files_struct *fsp, const char *name,
2077 const void *value, size_t size, int flags)
2079 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
2081 DBG_ERR("Failed to fetch gluster fd\n");
2085 return glfs_fsetxattr(glfd, name, value, size, flags);
2088 /* AIO Operations */
2090 static bool vfs_gluster_aio_force(struct vfs_handle_struct *handle,
2096 static NTSTATUS vfs_gluster_create_dfs_pathat(struct vfs_handle_struct *handle,
2097 struct files_struct *dirfsp,
2098 const struct smb_filename *smb_fname,
2099 const struct referral *reflist,
2100 size_t referral_count)
2102 TALLOC_CTX *frame = talloc_stackframe();
2103 NTSTATUS status = NT_STATUS_NO_MEMORY;
2105 char *msdfs_link = NULL;
2107 SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
2109 /* Form the msdfs_link contents */
2110 msdfs_link = msdfs_link_string(frame,
2113 if (msdfs_link == NULL) {
2117 ret = glfs_symlink(handle->data,
2119 smb_fname->base_name);
2121 status = NT_STATUS_OK;
2123 status = map_nt_error_from_unix(errno);
2133 * Read and return the contents of a DFS redirect given a
2134 * pathname. A caller can pass in NULL for ppreflist and
2135 * preferral_count but still determine if this was a
2136 * DFS redirect point by getting NT_STATUS_OK back
2137 * without incurring the overhead of reading and parsing
2138 * the referral contents.
2141 static NTSTATUS vfs_gluster_read_dfs_pathat(struct vfs_handle_struct *handle,
2142 TALLOC_CTX *mem_ctx,
2143 struct files_struct *dirfsp,
2144 struct smb_filename *smb_fname,
2145 struct referral **ppreflist,
2146 size_t *preferral_count)
2148 NTSTATUS status = NT_STATUS_NO_MEMORY;
2150 char *link_target = NULL;
2153 #if defined(HAVE_BROKEN_READLINK)
2154 char link_target_buf[PATH_MAX];
2156 char link_target_buf[7];
2161 SMB_ASSERT(dirfsp == dirfsp->conn->cwd_fsp);
2163 if (is_named_stream(smb_fname)) {
2164 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
2168 if (ppreflist == NULL && preferral_count == NULL) {
2170 * We're only checking if this is a DFS
2171 * redirect. We don't need to return data.
2173 bufsize = sizeof(link_target_buf);
2174 link_target = link_target_buf;
2177 link_target = talloc_array(mem_ctx, char, bufsize);
2183 ret = glfs_lstat(handle->data, smb_fname->base_name, &st);
2185 status = map_nt_error_from_unix(errno);
2189 referral_len = glfs_readlink(handle->data,
2190 smb_fname->base_name,
2193 if (referral_len < 0) {
2194 if (errno == EINVAL) {
2195 DBG_INFO("%s is not a link.\n", smb_fname->base_name);
2196 status = NT_STATUS_OBJECT_TYPE_MISMATCH;
2198 status = map_nt_error_from_unix(errno);
2199 DBG_ERR("Error reading "
2200 "msdfs link %s: %s\n",
2201 smb_fname->base_name,
2206 link_target[referral_len] = '\0';
2208 DBG_INFO("%s -> %s\n",
2209 smb_fname->base_name,
2212 if (!strnequal(link_target, "msdfs:", 6)) {
2213 status = NT_STATUS_OBJECT_TYPE_MISMATCH;
2217 if (ppreflist == NULL && preferral_count == NULL) {
2218 /* Early return for checking if this is a DFS link. */
2219 smb_stat_ex_from_stat(&smb_fname->st, &st);
2220 return NT_STATUS_OK;
2223 ok = parse_msdfs_symlink(mem_ctx,
2224 lp_msdfs_shuffle_referrals(SNUM(handle->conn)),
2230 smb_stat_ex_from_stat(&smb_fname->st, &st);
2231 status = NT_STATUS_OK;
2233 status = NT_STATUS_NO_MEMORY;
2238 if (link_target != link_target_buf) {
2239 TALLOC_FREE(link_target);
2244 static struct vfs_fn_pointers glusterfs_fns = {
2246 /* Disk Operations */
2248 .connect_fn = vfs_gluster_connect,
2249 .disconnect_fn = vfs_gluster_disconnect,
2250 .disk_free_fn = vfs_gluster_disk_free,
2251 .get_quota_fn = vfs_gluster_get_quota,
2252 .set_quota_fn = vfs_gluster_set_quota,
2253 .statvfs_fn = vfs_gluster_statvfs,
2254 .fs_capabilities_fn = vfs_gluster_fs_capabilities,
2256 .get_dfs_referrals_fn = NULL,
2258 /* Directory Operations */
2260 .fdopendir_fn = vfs_gluster_fdopendir,
2261 .readdir_fn = vfs_gluster_readdir,
2262 .seekdir_fn = vfs_gluster_seekdir,
2263 .telldir_fn = vfs_gluster_telldir,
2264 .rewind_dir_fn = vfs_gluster_rewinddir,
2265 .mkdirat_fn = vfs_gluster_mkdirat,
2266 .closedir_fn = vfs_gluster_closedir,
2268 /* File Operations */
2270 .openat_fn = vfs_gluster_openat,
2271 .create_file_fn = NULL,
2272 .close_fn = vfs_gluster_close,
2273 .pread_fn = vfs_gluster_pread,
2274 .pread_send_fn = vfs_gluster_pread_send,
2275 .pread_recv_fn = vfs_gluster_pread_recv,
2276 .pwrite_fn = vfs_gluster_pwrite,
2277 .pwrite_send_fn = vfs_gluster_pwrite_send,
2278 .pwrite_recv_fn = vfs_gluster_pwrite_recv,
2279 .lseek_fn = vfs_gluster_lseek,
2280 .sendfile_fn = vfs_gluster_sendfile,
2281 .recvfile_fn = vfs_gluster_recvfile,
2282 .renameat_fn = vfs_gluster_renameat,
2283 .fsync_send_fn = vfs_gluster_fsync_send,
2284 .fsync_recv_fn = vfs_gluster_fsync_recv,
2286 .stat_fn = vfs_gluster_stat,
2287 .fstat_fn = vfs_gluster_fstat,
2288 .lstat_fn = vfs_gluster_lstat,
2289 .get_alloc_size_fn = vfs_gluster_get_alloc_size,
2290 .unlinkat_fn = vfs_gluster_unlinkat,
2292 .chmod_fn = vfs_gluster_chmod,
2293 .fchmod_fn = vfs_gluster_fchmod,
2294 .fchown_fn = vfs_gluster_fchown,
2295 .lchown_fn = vfs_gluster_lchown,
2296 .chdir_fn = vfs_gluster_chdir,
2297 .getwd_fn = vfs_gluster_getwd,
2298 .ntimes_fn = vfs_gluster_ntimes,
2299 .ftruncate_fn = vfs_gluster_ftruncate,
2300 .fallocate_fn = vfs_gluster_fallocate,
2301 .lock_fn = vfs_gluster_lock,
2302 .kernel_flock_fn = vfs_gluster_kernel_flock,
2303 .fcntl_fn = vfs_gluster_fcntl,
2304 .linux_setlease_fn = vfs_gluster_linux_setlease,
2305 .getlock_fn = vfs_gluster_getlock,
2306 .symlinkat_fn = vfs_gluster_symlinkat,
2307 .readlinkat_fn = vfs_gluster_readlinkat,
2308 .linkat_fn = vfs_gluster_linkat,
2309 .mknodat_fn = vfs_gluster_mknodat,
2310 .realpath_fn = vfs_gluster_realpath,
2311 .chflags_fn = vfs_gluster_chflags,
2312 .file_id_create_fn = NULL,
2313 .streaminfo_fn = NULL,
2314 .get_real_filename_fn = vfs_gluster_get_real_filename,
2315 .connectpath_fn = vfs_gluster_connectpath,
2316 .create_dfs_pathat_fn = vfs_gluster_create_dfs_pathat,
2317 .read_dfs_pathat_fn = vfs_gluster_read_dfs_pathat,
2319 .brl_lock_windows_fn = NULL,
2320 .brl_unlock_windows_fn = NULL,
2321 .strict_lock_check_fn = NULL,
2322 .translate_name_fn = NULL,
2325 /* NT ACL Operations */
2326 .fget_nt_acl_fn = NULL,
2327 .get_nt_acl_at_fn = NULL,
2328 .fset_nt_acl_fn = NULL,
2329 .audit_file_fn = NULL,
2331 /* Posix ACL Operations */
2332 .sys_acl_get_file_fn = posixacl_xattr_acl_get_file,
2333 .sys_acl_get_fd_fn = posixacl_xattr_acl_get_fd,
2334 .sys_acl_blob_get_file_fn = posix_sys_acl_blob_get_file,
2335 .sys_acl_blob_get_fd_fn = posix_sys_acl_blob_get_fd,
2336 .sys_acl_set_fd_fn = posixacl_xattr_acl_set_fd,
2337 .sys_acl_delete_def_file_fn = posixacl_xattr_acl_delete_def_file,
2340 .getxattr_fn = vfs_gluster_getxattr,
2341 .getxattrat_send_fn = vfs_not_implemented_getxattrat_send,
2342 .getxattrat_recv_fn = vfs_not_implemented_getxattrat_recv,
2343 .fgetxattr_fn = vfs_gluster_fgetxattr,
2344 .flistxattr_fn = vfs_gluster_flistxattr,
2345 .removexattr_fn = vfs_gluster_removexattr,
2346 .fremovexattr_fn = vfs_gluster_fremovexattr,
2347 .fsetxattr_fn = vfs_gluster_fsetxattr,
2349 /* AIO Operations */
2350 .aio_force_fn = vfs_gluster_aio_force,
2352 /* Durable handle Operations */
2353 .durable_cookie_fn = NULL,
2354 .durable_disconnect_fn = NULL,
2355 .durable_reconnect_fn = NULL,
2359 NTSTATUS vfs_glusterfs_init(TALLOC_CTX *ctx)
2361 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
2362 "glusterfs", &glusterfs_fns);