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"
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"
49 #define DEFAULT_VOLFILE_SERVER "localhost"
51 static int read_fd = -1;
52 static int write_fd = -1;
53 static struct tevent_fd *aio_read_event = NULL;
56 * Helper to convert struct stat to struct stat_ex.
58 static void smb_stat_ex_from_stat(struct stat_ex *dst, const struct stat *src)
62 dst->st_ex_dev = src->st_dev;
63 dst->st_ex_ino = src->st_ino;
64 dst->st_ex_mode = src->st_mode;
65 dst->st_ex_nlink = src->st_nlink;
66 dst->st_ex_uid = src->st_uid;
67 dst->st_ex_gid = src->st_gid;
68 dst->st_ex_rdev = src->st_rdev;
69 dst->st_ex_size = src->st_size;
70 dst->st_ex_atime.tv_sec = src->st_atime;
71 dst->st_ex_mtime.tv_sec = src->st_mtime;
72 dst->st_ex_ctime.tv_sec = src->st_ctime;
73 dst->st_ex_btime.tv_sec = src->st_mtime;
74 dst->st_ex_blksize = src->st_blksize;
75 dst->st_ex_blocks = src->st_blocks;
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;
84 /* pre-opened glfs_t */
86 static struct glfs_preopened {
91 struct glfs_preopened *next, *prev;
95 static int glfs_set_preopened(const char *volume, const char *connectpath, glfs_t *fs)
97 struct glfs_preopened *entry = NULL;
99 entry = talloc_zero(NULL, struct glfs_preopened);
105 entry->volume = talloc_strdup(entry, volume);
106 if (!entry->volume) {
112 entry->connectpath = talloc_strdup(entry, connectpath);
113 if (entry->connectpath == NULL) {
122 DLIST_ADD(glfs_preopened, entry);
127 static glfs_t *glfs_find_preopened(const char *volume, const char *connectpath)
129 struct glfs_preopened *entry = NULL;
131 for (entry = glfs_preopened; entry; entry = entry->next) {
132 if (strcmp(entry->volume, volume) == 0 &&
133 strcmp(entry->connectpath, connectpath) == 0)
143 static void glfs_clear_preopened(glfs_t *fs)
145 struct glfs_preopened *entry = NULL;
147 for (entry = glfs_preopened; entry; entry = entry->next) {
148 if (entry->fs == fs) {
152 DLIST_REMOVE(glfs_preopened, entry);
154 glfs_fini(entry->fs);
160 static int vfs_gluster_set_volfile_servers(glfs_t *fs,
161 const char *volfile_servers)
164 int server_count = 0;
165 int server_success = 0;
167 TALLOC_CTX *frame = talloc_stackframe();
169 DBG_INFO("servers list %s\n", volfile_servers);
171 while (next_token_talloc(frame, &volfile_servers, &server, " \t")) {
172 char *transport = NULL;
177 DBG_INFO("server %d %s\n", server_count, server);
179 /* Determine the transport type */
180 if (strncmp(server, "unix+", 5) == 0) {
182 transport = talloc_strdup(frame, "unix");
187 host = talloc_strdup(frame, server + 5);
194 char *port_index = NULL;
196 if (strncmp(server, "tcp+", 4) == 0) {
200 /* IPv6 is enclosed in []
201 * ':' before ']' is part of IPv6
202 * ':' after ']' indicates port
205 if (server[0] == '[') {
207 p = index(server, ']');
216 port_index = index(p, ':');
218 if (port_index == NULL) {
221 port = atoi(port_index + 1);
222 port_index[0] = '\0';
224 transport = talloc_strdup(frame, "tcp");
229 host = talloc_strdup(frame, server);
236 DBG_INFO("Calling set volfile server with params "
237 "transport=%s, host=%s, port=%d\n", transport,
240 ret = glfs_set_volfile_server(fs, transport, host, port);
242 DBG_WARNING("Failed to set volfile_server "
243 "transport=%s, host=%s, port=%d (%s)\n",
244 transport, host, port, strerror(errno));
251 if (server_count == 0) {
253 } else if (server_success < server_count) {
254 DBG_WARNING("Failed to set %d out of %d servers parsed\n",
255 server_count - server_success, server_count);
263 /* Disk Operations */
265 static int vfs_gluster_connect(struct vfs_handle_struct *handle,
269 const char *volfile_servers;
277 tmp_ctx = talloc_new(NULL);
278 if (tmp_ctx == NULL) {
282 logfile = lp_parm_talloc_string(tmp_ctx, SNUM(handle->conn), "glusterfs",
285 loglevel = lp_parm_int(SNUM(handle->conn), "glusterfs", "loglevel", -1);
287 volfile_servers = lp_parm_talloc_string(tmp_ctx, SNUM(handle->conn),
288 "glusterfs", "volfile_server",
290 if (volfile_servers == NULL) {
291 volfile_servers = DEFAULT_VOLFILE_SERVER;
294 volume = lp_parm_const_string(SNUM(handle->conn), "glusterfs", "volume",
296 if (volume == NULL) {
300 fs = glfs_find_preopened(volume, handle->conn->connectpath);
305 fs = glfs_new(volume);
311 ret = vfs_gluster_set_volfile_servers(fs, volfile_servers);
313 DBG_ERR("Failed to set volfile_servers from list %s\n",
318 ret = glfs_set_xlator_option(fs, "*-md-cache", "cache-posix-acl",
321 DEBUG(0, ("%s: Failed to set xlator options\n", volume));
326 ret = glfs_set_xlator_option(fs, "*-snapview-client",
327 "snapdir-entry-path",
328 handle->conn->connectpath);
330 DEBUG(0, ("%s: Failed to set xlator option:"
331 " snapdir-entry-path\n", volume));
335 ret = glfs_set_logging(fs, logfile, loglevel);
337 DEBUG(0, ("%s: Failed to set logfile %s loglevel %d\n",
338 volume, logfile, loglevel));
344 DEBUG(0, ("%s: Failed to initialize volume (%s)\n",
345 volume, strerror(errno)));
349 ret = glfs_set_preopened(volume, handle->conn->connectpath, fs);
351 DEBUG(0, ("%s: Failed to register volume (%s)\n",
352 volume, strerror(errno)));
360 DBG_ERR("%s: Initialized volume from servers %s\n",
361 volume, volfile_servers);
364 talloc_free(tmp_ctx);
368 static void vfs_gluster_disconnect(struct vfs_handle_struct *handle)
374 glfs_clear_preopened(fs);
377 static uint64_t vfs_gluster_disk_free(struct vfs_handle_struct *handle,
378 const char *path, uint64_t *bsize_p,
379 uint64_t *dfree_p, uint64_t *dsize_p)
381 struct statvfs statvfs = { 0, };
384 ret = glfs_statvfs(handle->data, path, &statvfs);
389 if (bsize_p != NULL) {
390 *bsize_p = (uint64_t)statvfs.f_bsize; /* Block size */
392 if (dfree_p != NULL) {
393 *dfree_p = (uint64_t)statvfs.f_bavail; /* Available Block units */
395 if (dsize_p != NULL) {
396 *dsize_p = (uint64_t)statvfs.f_blocks; /* Total Block units */
399 return (uint64_t)statvfs.f_bavail;
402 static int vfs_gluster_get_quota(struct vfs_handle_struct *handle,
404 enum SMB_QUOTA_TYPE qtype, unid_t id,
412 vfs_gluster_set_quota(struct vfs_handle_struct *handle,
413 enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt)
419 static int vfs_gluster_statvfs(struct vfs_handle_struct *handle,
421 struct vfs_statvfs_struct *vfs_statvfs)
423 struct statvfs statvfs = { 0, };
426 ret = glfs_statvfs(handle->data, path, &statvfs);
428 DEBUG(0, ("glfs_statvfs(%s) failed: %s\n",
429 path, strerror(errno)));
433 ZERO_STRUCTP(vfs_statvfs);
435 vfs_statvfs->OptimalTransferSize = statvfs.f_frsize;
436 vfs_statvfs->BlockSize = statvfs.f_bsize;
437 vfs_statvfs->TotalBlocks = statvfs.f_blocks;
438 vfs_statvfs->BlocksAvail = statvfs.f_bfree;
439 vfs_statvfs->UserBlocksAvail = statvfs.f_bavail;
440 vfs_statvfs->TotalFileNodes = statvfs.f_files;
441 vfs_statvfs->FreeFileNodes = statvfs.f_ffree;
442 vfs_statvfs->FsIdentifier = statvfs.f_fsid;
443 vfs_statvfs->FsCapabilities =
444 FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
449 static uint32_t vfs_gluster_fs_capabilities(struct vfs_handle_struct *handle,
450 enum timestamp_set_resolution *p_ts_res)
452 uint32_t caps = FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
454 #ifdef STAT_HAVE_NSEC
455 *p_ts_res = TIMESTAMP_SET_NT_OR_BETTER;
461 static DIR *vfs_gluster_opendir(struct vfs_handle_struct *handle,
462 const struct smb_filename *smb_fname,
468 fd = glfs_opendir(handle->data, smb_fname->base_name);
470 DEBUG(0, ("glfs_opendir(%s) failed: %s\n",
471 smb_fname->base_name, strerror(errno)));
477 static DIR *vfs_gluster_fdopendir(struct vfs_handle_struct *handle,
478 files_struct *fsp, const char *mask,
481 return (DIR *) *(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp);
484 static int vfs_gluster_closedir(struct vfs_handle_struct *handle, DIR *dirp)
486 return glfs_closedir((void *)dirp);
489 static struct dirent *vfs_gluster_readdir(struct vfs_handle_struct *handle,
490 DIR *dirp, SMB_STRUCT_STAT *sbuf)
492 static char direntbuf[512];
495 struct dirent *dirent = 0;
498 ret = glfs_readdirplus_r((void *)dirp, &stat, (void *)direntbuf,
501 ret = glfs_readdir_r((void *)dirp, (void *)direntbuf, &dirent);
504 if ((ret < 0) || (dirent == NULL)) {
509 smb_stat_ex_from_stat(sbuf, &stat);
515 static long vfs_gluster_telldir(struct vfs_handle_struct *handle, DIR *dirp)
517 return glfs_telldir((void *)dirp);
520 static void vfs_gluster_seekdir(struct vfs_handle_struct *handle, DIR *dirp,
523 glfs_seekdir((void *)dirp, offset);
526 static void vfs_gluster_rewinddir(struct vfs_handle_struct *handle, DIR *dirp)
528 glfs_seekdir((void *)dirp, 0);
531 static void vfs_gluster_init_search_op(struct vfs_handle_struct *handle,
537 static int vfs_gluster_mkdir(struct vfs_handle_struct *handle,
538 const struct smb_filename *smb_fname,
541 return glfs_mkdir(handle->data, smb_fname->base_name, mode);
544 static int vfs_gluster_rmdir(struct vfs_handle_struct *handle,
545 const struct smb_filename *smb_fname)
547 return glfs_rmdir(handle->data, smb_fname->base_name);
550 static int vfs_gluster_open(struct vfs_handle_struct *handle,
551 struct smb_filename *smb_fname, files_struct *fsp,
552 int flags, mode_t mode)
557 if (flags & O_DIRECTORY) {
558 glfd = glfs_opendir(handle->data, smb_fname->base_name);
559 } else if (flags & O_CREAT) {
560 glfd = glfs_creat(handle->data, smb_fname->base_name, flags,
563 glfd = glfs_open(handle->data, smb_fname->base_name, flags);
569 p_tmp = (glfs_fd_t **)VFS_ADD_FSP_EXTENSION(handle, fsp,
572 /* An arbitrary value for error reporting, so you know its us. */
576 static int vfs_gluster_close(struct vfs_handle_struct *handle,
580 glfd = *(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp);
581 VFS_REMOVE_FSP_EXTENSION(handle, fsp);
582 return glfs_close(glfd);
585 static ssize_t vfs_gluster_read(struct vfs_handle_struct *handle,
586 files_struct *fsp, void *data, size_t n)
588 return glfs_read(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), data, n, 0);
591 static ssize_t vfs_gluster_pread(struct vfs_handle_struct *handle,
592 files_struct *fsp, void *data, size_t n,
595 return glfs_pread(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), data, n, offset, 0);
598 struct glusterfs_aio_state;
600 struct glusterfs_aio_wrapper {
601 struct glusterfs_aio_state *state;
604 struct glusterfs_aio_state {
606 struct tevent_req *req;
608 struct vfs_aio_state vfs_aio_state;
609 struct timespec start;
612 static int aio_wrapper_destructor(struct glusterfs_aio_wrapper *wrap)
614 if (wrap->state != NULL) {
615 wrap->state->cancelled = true;
622 * This function is the callback that will be called on glusterfs
623 * threads once the async IO submitted is complete. To notify
624 * Samba of the completion we use a pipe based queue.
626 static void aio_glusterfs_done(glfs_fd_t *fd, ssize_t ret, void *data)
628 struct glusterfs_aio_state *state = NULL;
632 state = (struct glusterfs_aio_state *)data;
634 PROFILE_TIMESTAMP(&end);
638 state->vfs_aio_state.error = errno;
642 state->vfs_aio_state.duration = nsec_time_diff(&end, &state->start);
645 * Write the state pointer to glusterfs_aio_state to the
646 * pipe, so we can call tevent_req_done() from the main thread,
647 * because tevent_req_done() is not designed to be executed in
648 * the multithread environment, so tevent_req_done() must be
649 * executed from the smbd main thread.
651 * write(2) on pipes with sizes under _POSIX_PIPE_BUF
652 * in size is atomic, without this, the use op pipes in this
653 * code would not work.
655 * sys_write is a thin enough wrapper around write(2)
656 * that we can trust it here.
659 sts = sys_write(write_fd, &state, sizeof(struct glusterfs_aio_state *));
661 DEBUG(0,("\nWrite to pipe failed (%s)", strerror(errno)));
668 * Read each req off the pipe and process it.
670 static void aio_tevent_fd_done(struct tevent_context *event_ctx,
671 struct tevent_fd *fde,
672 uint16_t flags, void *data)
674 struct tevent_req *req = NULL;
675 struct glusterfs_aio_state *state = NULL;
679 * read(2) on pipes is atomic if the needed data is available
680 * in the pipe, per SUS and POSIX. Because we always write
681 * to the pipe in sizeof(struct tevent_req *) chunks, we can
682 * always read in those chunks, atomically.
684 * sys_read is a thin enough wrapper around read(2) that we
688 sts = sys_read(read_fd, &state, sizeof(struct glusterfs_aio_state *));
691 DEBUG(0,("\nRead from pipe failed (%s)", strerror(errno)));
694 /* if we've cancelled the op, there is no req, so just clean up. */
695 if (state->cancelled == true) {
703 tevent_req_done(req);
708 static bool init_gluster_aio(struct vfs_handle_struct *handle)
715 * Already initialized.
728 aio_read_event = tevent_add_fd(handle->conn->sconn->ev_ctx,
734 if (aio_read_event == NULL) {
740 TALLOC_FREE(aio_read_event);
750 static struct glusterfs_aio_state *aio_state_create(TALLOC_CTX *mem_ctx)
752 struct tevent_req *req = NULL;
753 struct glusterfs_aio_state *state = NULL;
754 struct glusterfs_aio_wrapper *wrapper = NULL;
756 req = tevent_req_create(mem_ctx, &wrapper, struct glusterfs_aio_wrapper);
762 state = talloc_zero(NULL, struct glusterfs_aio_state);
769 talloc_set_destructor(wrapper, aio_wrapper_destructor);
770 state->cancelled = false;
773 wrapper->state = state;
778 static struct tevent_req *vfs_gluster_pread_send(struct vfs_handle_struct
779 *handle, TALLOC_CTX *mem_ctx,
780 struct tevent_context *ev,
782 void *data, size_t n,
785 struct glusterfs_aio_state *state = NULL;
786 struct tevent_req *req = NULL;
789 state = aio_state_create(mem_ctx);
797 if (!init_gluster_aio(handle)) {
798 tevent_req_error(req, EIO);
799 return tevent_req_post(req, ev);
802 PROFILE_TIMESTAMP(&state->start);
803 ret = glfs_pread_async(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle,
804 fsp), data, n, offset, 0, aio_glusterfs_done,
807 tevent_req_error(req, -ret);
808 return tevent_req_post(req, ev);
814 static struct tevent_req *vfs_gluster_pwrite_send(struct vfs_handle_struct
815 *handle, TALLOC_CTX *mem_ctx,
816 struct tevent_context *ev,
818 const void *data, size_t n,
821 struct glusterfs_aio_state *state = NULL;
822 struct tevent_req *req = NULL;
825 state = aio_state_create(mem_ctx);
833 if (!init_gluster_aio(handle)) {
834 tevent_req_error(req, EIO);
835 return tevent_req_post(req, ev);
838 PROFILE_TIMESTAMP(&state->start);
839 ret = glfs_pwrite_async(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle,
840 fsp), data, n, offset, 0, aio_glusterfs_done,
843 tevent_req_error(req, -ret);
844 return tevent_req_post(req, ev);
850 static ssize_t vfs_gluster_recv(struct tevent_req *req,
851 struct vfs_aio_state *vfs_aio_state)
853 struct glusterfs_aio_wrapper *wrapper = NULL;
856 wrapper = tevent_req_data(req, struct glusterfs_aio_wrapper);
858 if (wrapper == NULL) {
862 if (wrapper->state == NULL) {
866 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
870 *vfs_aio_state = wrapper->state->vfs_aio_state;
871 ret = wrapper->state->ret;
873 /* Clean up the state, it is in a NULL context. */
875 TALLOC_FREE(wrapper->state);
880 static ssize_t vfs_gluster_write(struct vfs_handle_struct *handle,
881 files_struct *fsp, const void *data, size_t n)
883 return glfs_write(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), data, n, 0);
886 static ssize_t vfs_gluster_pwrite(struct vfs_handle_struct *handle,
887 files_struct *fsp, const void *data,
888 size_t n, off_t offset)
890 return glfs_pwrite(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), data, n, offset, 0);
893 static off_t vfs_gluster_lseek(struct vfs_handle_struct *handle,
894 files_struct *fsp, off_t offset, int whence)
896 return glfs_lseek(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), offset, whence);
899 static ssize_t vfs_gluster_sendfile(struct vfs_handle_struct *handle, int tofd,
900 files_struct *fromfsp,
901 const DATA_BLOB *hdr,
902 off_t offset, size_t n)
908 static ssize_t vfs_gluster_recvfile(struct vfs_handle_struct *handle,
909 int fromfd, files_struct *tofsp,
910 off_t offset, size_t n)
916 static int vfs_gluster_rename(struct vfs_handle_struct *handle,
917 const struct smb_filename *smb_fname_src,
918 const struct smb_filename *smb_fname_dst)
920 return glfs_rename(handle->data, smb_fname_src->base_name,
921 smb_fname_dst->base_name);
924 static int vfs_gluster_fsync(struct vfs_handle_struct *handle,
927 return glfs_fsync(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp));
930 static struct tevent_req *vfs_gluster_fsync_send(struct vfs_handle_struct
931 *handle, TALLOC_CTX *mem_ctx,
932 struct tevent_context *ev,
935 struct tevent_req *req = NULL;
936 struct glusterfs_aio_state *state = NULL;
939 state = aio_state_create(mem_ctx);
947 if (!init_gluster_aio(handle)) {
948 tevent_req_error(req, EIO);
949 return tevent_req_post(req, ev);
952 PROFILE_TIMESTAMP(&state->start);
953 ret = glfs_fsync_async(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle,
954 fsp), aio_glusterfs_done, req);
956 tevent_req_error(req, -ret);
957 return tevent_req_post(req, ev);
962 static int vfs_gluster_fsync_recv(struct tevent_req *req,
963 struct vfs_aio_state *vfs_aio_state)
966 * Use implicit conversion ssize_t->int
968 return vfs_gluster_recv(req, vfs_aio_state);
971 static int vfs_gluster_stat(struct vfs_handle_struct *handle,
972 struct smb_filename *smb_fname)
977 ret = glfs_stat(handle->data, smb_fname->base_name, &st);
979 smb_stat_ex_from_stat(&smb_fname->st, &st);
981 if (ret < 0 && errno != ENOENT) {
982 DEBUG(0, ("glfs_stat(%s) failed: %s\n",
983 smb_fname->base_name, strerror(errno)));
988 static int vfs_gluster_fstat(struct vfs_handle_struct *handle,
989 files_struct *fsp, SMB_STRUCT_STAT *sbuf)
994 ret = glfs_fstat(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), &st);
996 smb_stat_ex_from_stat(sbuf, &st);
999 DEBUG(0, ("glfs_fstat(%d) failed: %s\n",
1000 fsp->fh->fd, strerror(errno)));
1005 static int vfs_gluster_lstat(struct vfs_handle_struct *handle,
1006 struct smb_filename *smb_fname)
1011 ret = glfs_lstat(handle->data, smb_fname->base_name, &st);
1013 smb_stat_ex_from_stat(&smb_fname->st, &st);
1015 if (ret < 0 && errno != ENOENT) {
1016 DEBUG(0, ("glfs_lstat(%s) failed: %s\n",
1017 smb_fname->base_name, strerror(errno)));
1022 static uint64_t vfs_gluster_get_alloc_size(struct vfs_handle_struct *handle,
1024 const SMB_STRUCT_STAT *sbuf)
1026 return sbuf->st_ex_blocks * 512;
1029 static int vfs_gluster_unlink(struct vfs_handle_struct *handle,
1030 const struct smb_filename *smb_fname)
1032 return glfs_unlink(handle->data, smb_fname->base_name);
1035 static int vfs_gluster_chmod(struct vfs_handle_struct *handle,
1036 const struct smb_filename *smb_fname,
1039 return glfs_chmod(handle->data, smb_fname->base_name, mode);
1042 static int vfs_gluster_fchmod(struct vfs_handle_struct *handle,
1043 files_struct *fsp, mode_t mode)
1045 return glfs_fchmod(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), mode);
1048 static int vfs_gluster_chown(struct vfs_handle_struct *handle,
1049 const struct smb_filename *smb_fname,
1053 return glfs_chown(handle->data, smb_fname->base_name, uid, gid);
1056 static int vfs_gluster_fchown(struct vfs_handle_struct *handle,
1057 files_struct *fsp, uid_t uid, gid_t gid)
1059 return glfs_fchown(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), uid, gid);
1062 static int vfs_gluster_lchown(struct vfs_handle_struct *handle,
1063 const struct smb_filename *smb_fname,
1067 return glfs_lchown(handle->data, smb_fname->base_name, uid, gid);
1070 static int vfs_gluster_chdir(struct vfs_handle_struct *handle, const char *path)
1072 return glfs_chdir(handle->data, path);
1075 static char *vfs_gluster_getwd(struct vfs_handle_struct *handle)
1080 cwd = SMB_CALLOC_ARRAY(char, PATH_MAX);
1085 ret = glfs_getcwd(handle->data, cwd, PATH_MAX - 1);
1092 static int vfs_gluster_ntimes(struct vfs_handle_struct *handle,
1093 const struct smb_filename *smb_fname,
1094 struct smb_file_time *ft)
1096 struct timespec times[2];
1098 if (null_timespec(ft->atime)) {
1099 times[0].tv_sec = smb_fname->st.st_ex_atime.tv_sec;
1100 times[0].tv_nsec = smb_fname->st.st_ex_atime.tv_nsec;
1102 times[0].tv_sec = ft->atime.tv_sec;
1103 times[0].tv_nsec = ft->atime.tv_nsec;
1106 if (null_timespec(ft->mtime)) {
1107 times[1].tv_sec = smb_fname->st.st_ex_mtime.tv_sec;
1108 times[1].tv_nsec = smb_fname->st.st_ex_mtime.tv_nsec;
1110 times[1].tv_sec = ft->mtime.tv_sec;
1111 times[1].tv_nsec = ft->mtime.tv_nsec;
1114 if ((timespec_compare(×[0],
1115 &smb_fname->st.st_ex_atime) == 0) &&
1116 (timespec_compare(×[1],
1117 &smb_fname->st.st_ex_mtime) == 0)) {
1121 return glfs_utimens(handle->data, smb_fname->base_name, times);
1124 static int vfs_gluster_ftruncate(struct vfs_handle_struct *handle,
1125 files_struct *fsp, off_t offset)
1127 return glfs_ftruncate(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), offset);
1130 static int vfs_gluster_fallocate(struct vfs_handle_struct *handle,
1131 struct files_struct *fsp,
1133 off_t offset, off_t len)
1135 /* TODO: add support using glfs_fallocate() and glfs_zerofill() */
1140 static char *vfs_gluster_realpath(struct vfs_handle_struct *handle,
1143 char *result = NULL;
1144 char *resolved_path = SMB_MALLOC_ARRAY(char, PATH_MAX+1);
1146 if (resolved_path == NULL) {
1151 result = glfs_realpath(handle->data, path, resolved_path);
1152 if (result == NULL) {
1153 SAFE_FREE(resolved_path);
1159 static bool vfs_gluster_lock(struct vfs_handle_struct *handle,
1160 files_struct *fsp, int op, off_t offset,
1161 off_t count, int type)
1163 struct flock flock = { 0, };
1166 flock.l_type = type;
1167 flock.l_whence = SEEK_SET;
1168 flock.l_start = offset;
1169 flock.l_len = count;
1172 ret = glfs_posix_lock(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), op, &flock);
1174 if (op == F_GETLK) {
1175 /* lock query, true if someone else has locked */
1177 (flock.l_type != F_UNLCK) &&
1178 (flock.l_pid != 0) && (flock.l_pid != getpid()))
1191 static int vfs_gluster_kernel_flock(struct vfs_handle_struct *handle,
1192 files_struct *fsp, uint32_t share_mode,
1193 uint32_t access_mask)
1199 static int vfs_gluster_linux_setlease(struct vfs_handle_struct *handle,
1200 files_struct *fsp, int leasetype)
1206 static bool vfs_gluster_getlock(struct vfs_handle_struct *handle,
1207 files_struct *fsp, off_t *poffset,
1208 off_t *pcount, int *ptype, pid_t *ppid)
1210 struct flock flock = { 0, };
1213 flock.l_type = *ptype;
1214 flock.l_whence = SEEK_SET;
1215 flock.l_start = *poffset;
1216 flock.l_len = *pcount;
1219 ret = glfs_posix_lock(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), F_GETLK, &flock);
1225 *ptype = flock.l_type;
1226 *poffset = flock.l_start;
1227 *pcount = flock.l_len;
1228 *ppid = flock.l_pid;
1233 static int vfs_gluster_symlink(struct vfs_handle_struct *handle,
1234 const char *oldpath, const char *newpath)
1236 return glfs_symlink(handle->data, oldpath, newpath);
1239 static int vfs_gluster_readlink(struct vfs_handle_struct *handle,
1240 const char *path, char *buf, size_t bufsiz)
1242 return glfs_readlink(handle->data, path, buf, bufsiz);
1245 static int vfs_gluster_link(struct vfs_handle_struct *handle,
1246 const char *oldpath, const char *newpath)
1248 return glfs_link(handle->data, oldpath, newpath);
1251 static int vfs_gluster_mknod(struct vfs_handle_struct *handle,
1252 const struct smb_filename *smb_fname,
1256 return glfs_mknod(handle->data, smb_fname->base_name, mode, dev);
1259 static int vfs_gluster_chflags(struct vfs_handle_struct *handle,
1260 const struct smb_filename *smb_fname,
1267 static int vfs_gluster_get_real_filename(struct vfs_handle_struct *handle,
1268 const char *path, const char *name,
1269 TALLOC_CTX *mem_ctx, char **found_name)
1272 char key_buf[NAME_MAX + 64];
1273 char val_buf[NAME_MAX + 1];
1275 if (strlen(name) >= NAME_MAX) {
1276 errno = ENAMETOOLONG;
1280 snprintf(key_buf, NAME_MAX + 64,
1281 "glusterfs.get_real_filename:%s", name);
1283 ret = glfs_getxattr(handle->data, path, key_buf, val_buf, NAME_MAX + 1);
1285 if (errno == ENODATA) {
1291 *found_name = talloc_strdup(mem_ctx, val_buf);
1292 if (found_name[0] == NULL) {
1299 static const char *vfs_gluster_connectpath(struct vfs_handle_struct *handle,
1300 const char *filename)
1302 return handle->conn->connectpath;
1307 static ssize_t vfs_gluster_getxattr(struct vfs_handle_struct *handle,
1308 const struct smb_filename *smb_fname,
1313 return glfs_getxattr(handle->data, smb_fname->base_name,
1317 static ssize_t vfs_gluster_fgetxattr(struct vfs_handle_struct *handle,
1318 files_struct *fsp, const char *name,
1319 void *value, size_t size)
1321 return glfs_fgetxattr(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), name, value, size);
1324 static ssize_t vfs_gluster_listxattr(struct vfs_handle_struct *handle,
1325 const struct smb_filename *smb_fname,
1329 return glfs_listxattr(handle->data, smb_fname->base_name, list, size);
1332 static ssize_t vfs_gluster_flistxattr(struct vfs_handle_struct *handle,
1333 files_struct *fsp, char *list,
1336 return glfs_flistxattr(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), list, size);
1339 static int vfs_gluster_removexattr(struct vfs_handle_struct *handle,
1340 const struct smb_filename *smb_fname,
1343 return glfs_removexattr(handle->data, smb_fname->base_name, name);
1346 static int vfs_gluster_fremovexattr(struct vfs_handle_struct *handle,
1347 files_struct *fsp, const char *name)
1349 return glfs_fremovexattr(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), name);
1352 static int vfs_gluster_setxattr(struct vfs_handle_struct *handle,
1353 const struct smb_filename *smb_fname,
1355 const void *value, size_t size, int flags)
1357 return glfs_setxattr(handle->data, smb_fname->base_name, name, value, size, flags);
1360 static int vfs_gluster_fsetxattr(struct vfs_handle_struct *handle,
1361 files_struct *fsp, const char *name,
1362 const void *value, size_t size, int flags)
1364 return glfs_fsetxattr(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), name, value, size,
1368 /* AIO Operations */
1370 static bool vfs_gluster_aio_force(struct vfs_handle_struct *handle,
1376 static struct vfs_fn_pointers glusterfs_fns = {
1378 /* Disk Operations */
1380 .connect_fn = vfs_gluster_connect,
1381 .disconnect_fn = vfs_gluster_disconnect,
1382 .disk_free_fn = vfs_gluster_disk_free,
1383 .get_quota_fn = vfs_gluster_get_quota,
1384 .set_quota_fn = vfs_gluster_set_quota,
1385 .statvfs_fn = vfs_gluster_statvfs,
1386 .fs_capabilities_fn = vfs_gluster_fs_capabilities,
1388 .get_dfs_referrals_fn = NULL,
1390 /* Directory Operations */
1392 .opendir_fn = vfs_gluster_opendir,
1393 .fdopendir_fn = vfs_gluster_fdopendir,
1394 .readdir_fn = vfs_gluster_readdir,
1395 .seekdir_fn = vfs_gluster_seekdir,
1396 .telldir_fn = vfs_gluster_telldir,
1397 .rewind_dir_fn = vfs_gluster_rewinddir,
1398 .mkdir_fn = vfs_gluster_mkdir,
1399 .rmdir_fn = vfs_gluster_rmdir,
1400 .closedir_fn = vfs_gluster_closedir,
1401 .init_search_op_fn = vfs_gluster_init_search_op,
1403 /* File Operations */
1405 .open_fn = vfs_gluster_open,
1406 .create_file_fn = NULL,
1407 .close_fn = vfs_gluster_close,
1408 .read_fn = vfs_gluster_read,
1409 .pread_fn = vfs_gluster_pread,
1410 .pread_send_fn = vfs_gluster_pread_send,
1411 .pread_recv_fn = vfs_gluster_recv,
1412 .write_fn = vfs_gluster_write,
1413 .pwrite_fn = vfs_gluster_pwrite,
1414 .pwrite_send_fn = vfs_gluster_pwrite_send,
1415 .pwrite_recv_fn = vfs_gluster_recv,
1416 .lseek_fn = vfs_gluster_lseek,
1417 .sendfile_fn = vfs_gluster_sendfile,
1418 .recvfile_fn = vfs_gluster_recvfile,
1419 .rename_fn = vfs_gluster_rename,
1420 .fsync_fn = vfs_gluster_fsync,
1421 .fsync_send_fn = vfs_gluster_fsync_send,
1422 .fsync_recv_fn = vfs_gluster_fsync_recv,
1424 .stat_fn = vfs_gluster_stat,
1425 .fstat_fn = vfs_gluster_fstat,
1426 .lstat_fn = vfs_gluster_lstat,
1427 .get_alloc_size_fn = vfs_gluster_get_alloc_size,
1428 .unlink_fn = vfs_gluster_unlink,
1430 .chmod_fn = vfs_gluster_chmod,
1431 .fchmod_fn = vfs_gluster_fchmod,
1432 .chown_fn = vfs_gluster_chown,
1433 .fchown_fn = vfs_gluster_fchown,
1434 .lchown_fn = vfs_gluster_lchown,
1435 .chdir_fn = vfs_gluster_chdir,
1436 .getwd_fn = vfs_gluster_getwd,
1437 .ntimes_fn = vfs_gluster_ntimes,
1438 .ftruncate_fn = vfs_gluster_ftruncate,
1439 .fallocate_fn = vfs_gluster_fallocate,
1440 .lock_fn = vfs_gluster_lock,
1441 .kernel_flock_fn = vfs_gluster_kernel_flock,
1442 .linux_setlease_fn = vfs_gluster_linux_setlease,
1443 .getlock_fn = vfs_gluster_getlock,
1444 .symlink_fn = vfs_gluster_symlink,
1445 .readlink_fn = vfs_gluster_readlink,
1446 .link_fn = vfs_gluster_link,
1447 .mknod_fn = vfs_gluster_mknod,
1448 .realpath_fn = vfs_gluster_realpath,
1449 .chflags_fn = vfs_gluster_chflags,
1450 .file_id_create_fn = NULL,
1451 .copy_chunk_send_fn = NULL,
1452 .copy_chunk_recv_fn = NULL,
1453 .streaminfo_fn = NULL,
1454 .get_real_filename_fn = vfs_gluster_get_real_filename,
1455 .connectpath_fn = vfs_gluster_connectpath,
1457 .brl_lock_windows_fn = NULL,
1458 .brl_unlock_windows_fn = NULL,
1459 .brl_cancel_windows_fn = NULL,
1460 .strict_lock_fn = NULL,
1461 .strict_unlock_fn = NULL,
1462 .translate_name_fn = NULL,
1465 /* NT ACL Operations */
1466 .fget_nt_acl_fn = NULL,
1467 .get_nt_acl_fn = NULL,
1468 .fset_nt_acl_fn = NULL,
1469 .audit_file_fn = NULL,
1471 /* Posix ACL Operations */
1472 .chmod_acl_fn = NULL, /* passthrough to default */
1473 .fchmod_acl_fn = NULL, /* passthrough to default */
1474 .sys_acl_get_file_fn = posixacl_xattr_acl_get_file,
1475 .sys_acl_get_fd_fn = posixacl_xattr_acl_get_fd,
1476 .sys_acl_blob_get_file_fn = posix_sys_acl_blob_get_file,
1477 .sys_acl_blob_get_fd_fn = posix_sys_acl_blob_get_fd,
1478 .sys_acl_set_file_fn = posixacl_xattr_acl_set_file,
1479 .sys_acl_set_fd_fn = posixacl_xattr_acl_set_fd,
1480 .sys_acl_delete_def_file_fn = posixacl_xattr_acl_delete_def_file,
1483 .getxattr_fn = vfs_gluster_getxattr,
1484 .fgetxattr_fn = vfs_gluster_fgetxattr,
1485 .listxattr_fn = vfs_gluster_listxattr,
1486 .flistxattr_fn = vfs_gluster_flistxattr,
1487 .removexattr_fn = vfs_gluster_removexattr,
1488 .fremovexattr_fn = vfs_gluster_fremovexattr,
1489 .setxattr_fn = vfs_gluster_setxattr,
1490 .fsetxattr_fn = vfs_gluster_fsetxattr,
1492 /* AIO Operations */
1493 .aio_force_fn = vfs_gluster_aio_force,
1495 /* Durable handle Operations */
1496 .durable_cookie_fn = NULL,
1497 .durable_disconnect_fn = NULL,
1498 .durable_reconnect_fn = NULL,
1501 NTSTATUS vfs_glusterfs_init(TALLOC_CTX *);
1502 NTSTATUS vfs_glusterfs_init(TALLOC_CTX *ctx)
1504 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
1505 "glusterfs", &glusterfs_fns);