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 /* Disk Operations */
162 static int vfs_gluster_connect(struct vfs_handle_struct *handle,
166 const char *volfile_server;
174 tmp_ctx = talloc_new(NULL);
175 if (tmp_ctx == NULL) {
179 logfile = lp_parm_talloc_string(tmp_ctx, SNUM(handle->conn), "glusterfs",
182 loglevel = lp_parm_int(SNUM(handle->conn), "glusterfs", "loglevel", -1);
184 volfile_server = lp_parm_const_string(SNUM(handle->conn), "glusterfs",
185 "volfile_server", NULL);
186 if (volfile_server == NULL) {
187 volfile_server = DEFAULT_VOLFILE_SERVER;
190 volume = lp_parm_const_string(SNUM(handle->conn), "glusterfs", "volume",
192 if (volume == NULL) {
196 fs = glfs_find_preopened(volume, handle->conn->connectpath);
201 fs = glfs_new(volume);
207 ret = glfs_set_volfile_server(fs, "tcp", volfile_server, 0);
209 DEBUG(0, ("Failed to set volfile_server %s\n", volfile_server));
213 ret = glfs_set_xlator_option(fs, "*-md-cache", "cache-posix-acl",
216 DEBUG(0, ("%s: Failed to set xlator options\n", volume));
221 ret = glfs_set_xlator_option(fs, "*-snapview-client",
222 "snapdir-entry-path",
223 handle->conn->connectpath);
225 DEBUG(0, ("%s: Failed to set xlator option:"
226 " snapdir-entry-path\n", volume));
231 ret = glfs_set_logging(fs, logfile, loglevel);
233 DEBUG(0, ("%s: Failed to set logfile %s loglevel %d\n",
234 volume, logfile, loglevel));
240 DEBUG(0, ("%s: Failed to initialize volume (%s)\n",
241 volume, strerror(errno)));
245 ret = glfs_set_preopened(volume, handle->conn->connectpath, fs);
247 DEBUG(0, ("%s: Failed to register volume (%s)\n",
248 volume, strerror(errno)));
252 talloc_free(tmp_ctx);
258 DEBUG(0, ("%s: Initialized volume from server %s\n",
259 volume, volfile_server));
265 static void vfs_gluster_disconnect(struct vfs_handle_struct *handle)
271 glfs_clear_preopened(fs);
274 static uint64_t vfs_gluster_disk_free(struct vfs_handle_struct *handle,
275 const char *path, uint64_t *bsize_p,
276 uint64_t *dfree_p, uint64_t *dsize_p)
278 struct statvfs statvfs = { 0, };
281 ret = glfs_statvfs(handle->data, path, &statvfs);
286 if (bsize_p != NULL) {
287 *bsize_p = (uint64_t)statvfs.f_bsize; /* Block size */
289 if (dfree_p != NULL) {
290 *dfree_p = (uint64_t)statvfs.f_bavail; /* Available Block units */
292 if (dsize_p != NULL) {
293 *dsize_p = (uint64_t)statvfs.f_blocks; /* Total Block units */
296 return (uint64_t)statvfs.f_bavail;
299 static int vfs_gluster_get_quota(struct vfs_handle_struct *handle,
301 enum SMB_QUOTA_TYPE qtype, unid_t id,
309 vfs_gluster_set_quota(struct vfs_handle_struct *handle,
310 enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt)
316 static int vfs_gluster_statvfs(struct vfs_handle_struct *handle,
318 struct vfs_statvfs_struct *vfs_statvfs)
320 struct statvfs statvfs = { 0, };
323 ret = glfs_statvfs(handle->data, path, &statvfs);
325 DEBUG(0, ("glfs_statvfs(%s) failed: %s\n",
326 path, strerror(errno)));
330 ZERO_STRUCTP(vfs_statvfs);
332 vfs_statvfs->OptimalTransferSize = statvfs.f_frsize;
333 vfs_statvfs->BlockSize = statvfs.f_bsize;
334 vfs_statvfs->TotalBlocks = statvfs.f_blocks;
335 vfs_statvfs->BlocksAvail = statvfs.f_bfree;
336 vfs_statvfs->UserBlocksAvail = statvfs.f_bavail;
337 vfs_statvfs->TotalFileNodes = statvfs.f_files;
338 vfs_statvfs->FreeFileNodes = statvfs.f_ffree;
339 vfs_statvfs->FsIdentifier = statvfs.f_fsid;
340 vfs_statvfs->FsCapabilities =
341 FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
346 static uint32_t vfs_gluster_fs_capabilities(struct vfs_handle_struct *handle,
347 enum timestamp_set_resolution *p_ts_res)
349 uint32_t caps = FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
351 #ifdef STAT_HAVE_NSEC
352 *p_ts_res = TIMESTAMP_SET_NT_OR_BETTER;
358 static DIR *vfs_gluster_opendir(struct vfs_handle_struct *handle,
359 const struct smb_filename *smb_fname,
365 fd = glfs_opendir(handle->data, smb_fname->base_name);
367 DEBUG(0, ("glfs_opendir(%s) failed: %s\n",
368 smb_fname->base_name, strerror(errno)));
374 static DIR *vfs_gluster_fdopendir(struct vfs_handle_struct *handle,
375 files_struct *fsp, const char *mask,
378 return (DIR *) *(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp);
381 static int vfs_gluster_closedir(struct vfs_handle_struct *handle, DIR *dirp)
383 return glfs_closedir((void *)dirp);
386 static struct dirent *vfs_gluster_readdir(struct vfs_handle_struct *handle,
387 DIR *dirp, SMB_STRUCT_STAT *sbuf)
389 static char direntbuf[512];
392 struct dirent *dirent = 0;
395 ret = glfs_readdirplus_r((void *)dirp, &stat, (void *)direntbuf,
398 ret = glfs_readdir_r((void *)dirp, (void *)direntbuf, &dirent);
401 if ((ret < 0) || (dirent == NULL)) {
406 smb_stat_ex_from_stat(sbuf, &stat);
412 static long vfs_gluster_telldir(struct vfs_handle_struct *handle, DIR *dirp)
414 return glfs_telldir((void *)dirp);
417 static void vfs_gluster_seekdir(struct vfs_handle_struct *handle, DIR *dirp,
420 glfs_seekdir((void *)dirp, offset);
423 static void vfs_gluster_rewinddir(struct vfs_handle_struct *handle, DIR *dirp)
425 glfs_seekdir((void *)dirp, 0);
428 static void vfs_gluster_init_search_op(struct vfs_handle_struct *handle,
434 static int vfs_gluster_mkdir(struct vfs_handle_struct *handle,
435 const struct smb_filename *smb_fname,
438 return glfs_mkdir(handle->data, smb_fname->base_name, mode);
441 static int vfs_gluster_rmdir(struct vfs_handle_struct *handle,
442 const struct smb_filename *smb_fname)
444 return glfs_rmdir(handle->data, smb_fname->base_name);
447 static int vfs_gluster_open(struct vfs_handle_struct *handle,
448 struct smb_filename *smb_fname, files_struct *fsp,
449 int flags, mode_t mode)
454 if (flags & O_DIRECTORY) {
455 glfd = glfs_opendir(handle->data, smb_fname->base_name);
456 } else if (flags & O_CREAT) {
457 glfd = glfs_creat(handle->data, smb_fname->base_name, flags,
460 glfd = glfs_open(handle->data, smb_fname->base_name, flags);
466 p_tmp = (glfs_fd_t **)VFS_ADD_FSP_EXTENSION(handle, fsp,
469 /* An arbitrary value for error reporting, so you know its us. */
473 static int vfs_gluster_close(struct vfs_handle_struct *handle,
477 glfd = *(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp);
478 VFS_REMOVE_FSP_EXTENSION(handle, fsp);
479 return glfs_close(glfd);
482 static ssize_t vfs_gluster_read(struct vfs_handle_struct *handle,
483 files_struct *fsp, void *data, size_t n)
485 return glfs_read(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), data, n, 0);
488 static ssize_t vfs_gluster_pread(struct vfs_handle_struct *handle,
489 files_struct *fsp, void *data, size_t n,
492 return glfs_pread(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), data, n, offset, 0);
495 struct glusterfs_aio_state;
497 struct glusterfs_aio_wrapper {
498 struct glusterfs_aio_state *state;
501 struct glusterfs_aio_state {
503 struct tevent_req *req;
505 struct vfs_aio_state vfs_aio_state;
506 struct timespec start;
509 static int aio_wrapper_destructor(struct glusterfs_aio_wrapper *wrap)
511 if (wrap->state != NULL) {
512 wrap->state->cancelled = true;
519 * This function is the callback that will be called on glusterfs
520 * threads once the async IO submitted is complete. To notify
521 * Samba of the completion we use a pipe based queue.
523 static void aio_glusterfs_done(glfs_fd_t *fd, ssize_t ret, void *data)
525 struct glusterfs_aio_state *state = NULL;
529 state = (struct glusterfs_aio_state *)data;
531 PROFILE_TIMESTAMP(&end);
535 state->vfs_aio_state.error = errno;
539 state->vfs_aio_state.duration = nsec_time_diff(&end, &state->start);
542 * Write the state pointer to glusterfs_aio_state to the
543 * pipe, so we can call tevent_req_done() from the main thread,
544 * because tevent_req_done() is not designed to be executed in
545 * the multithread environment, so tevent_req_done() must be
546 * executed from the smbd main thread.
548 * write(2) on pipes with sizes under _POSIX_PIPE_BUF
549 * in size is atomic, without this, the use op pipes in this
550 * code would not work.
552 * sys_write is a thin enough wrapper around write(2)
553 * that we can trust it here.
556 sts = sys_write(write_fd, &state, sizeof(struct glusterfs_aio_state *));
558 DEBUG(0,("\nWrite to pipe failed (%s)", strerror(errno)));
565 * Read each req off the pipe and process it.
567 static void aio_tevent_fd_done(struct tevent_context *event_ctx,
568 struct tevent_fd *fde,
569 uint16_t flags, void *data)
571 struct tevent_req *req = NULL;
572 struct glusterfs_aio_state *state = NULL;
576 * read(2) on pipes is atomic if the needed data is available
577 * in the pipe, per SUS and POSIX. Because we always write
578 * to the pipe in sizeof(struct tevent_req *) chunks, we can
579 * always read in those chunks, atomically.
581 * sys_read is a thin enough wrapper around read(2) that we
585 sts = sys_read(read_fd, &state, sizeof(struct glusterfs_aio_state *));
588 DEBUG(0,("\nRead from pipe failed (%s)", strerror(errno)));
591 /* if we've cancelled the op, there is no req, so just clean up. */
592 if (state->cancelled == true) {
600 tevent_req_done(req);
605 static bool init_gluster_aio(struct vfs_handle_struct *handle)
612 * Already initialized.
625 aio_read_event = tevent_add_fd(handle->conn->sconn->ev_ctx,
631 if (aio_read_event == NULL) {
637 TALLOC_FREE(aio_read_event);
647 static struct glusterfs_aio_state *aio_state_create(TALLOC_CTX *mem_ctx)
649 struct tevent_req *req = NULL;
650 struct glusterfs_aio_state *state = NULL;
651 struct glusterfs_aio_wrapper *wrapper = NULL;
653 req = tevent_req_create(mem_ctx, &wrapper, struct glusterfs_aio_wrapper);
659 state = talloc_zero(NULL, struct glusterfs_aio_state);
666 talloc_set_destructor(wrapper, aio_wrapper_destructor);
667 state->cancelled = false;
670 wrapper->state = state;
675 static struct tevent_req *vfs_gluster_pread_send(struct vfs_handle_struct
676 *handle, TALLOC_CTX *mem_ctx,
677 struct tevent_context *ev,
679 void *data, size_t n,
682 struct glusterfs_aio_state *state = NULL;
683 struct tevent_req *req = NULL;
686 state = aio_state_create(mem_ctx);
694 if (!init_gluster_aio(handle)) {
695 tevent_req_error(req, EIO);
696 return tevent_req_post(req, ev);
699 PROFILE_TIMESTAMP(&state->start);
700 ret = glfs_pread_async(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle,
701 fsp), data, n, offset, 0, aio_glusterfs_done,
704 tevent_req_error(req, -ret);
705 return tevent_req_post(req, ev);
711 static struct tevent_req *vfs_gluster_pwrite_send(struct vfs_handle_struct
712 *handle, TALLOC_CTX *mem_ctx,
713 struct tevent_context *ev,
715 const void *data, size_t n,
718 struct glusterfs_aio_state *state = NULL;
719 struct tevent_req *req = NULL;
722 state = aio_state_create(mem_ctx);
730 if (!init_gluster_aio(handle)) {
731 tevent_req_error(req, EIO);
732 return tevent_req_post(req, ev);
735 PROFILE_TIMESTAMP(&state->start);
736 ret = glfs_pwrite_async(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle,
737 fsp), data, n, offset, 0, aio_glusterfs_done,
740 tevent_req_error(req, -ret);
741 return tevent_req_post(req, ev);
747 static ssize_t vfs_gluster_recv(struct tevent_req *req,
748 struct vfs_aio_state *vfs_aio_state)
750 struct glusterfs_aio_wrapper *wrapper = NULL;
753 wrapper = tevent_req_data(req, struct glusterfs_aio_wrapper);
755 if (wrapper == NULL) {
759 if (wrapper->state == NULL) {
763 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
767 *vfs_aio_state = wrapper->state->vfs_aio_state;
768 ret = wrapper->state->ret;
770 /* Clean up the state, it is in a NULL context. */
772 TALLOC_FREE(wrapper->state);
777 static ssize_t vfs_gluster_write(struct vfs_handle_struct *handle,
778 files_struct *fsp, const void *data, size_t n)
780 return glfs_write(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), data, n, 0);
783 static ssize_t vfs_gluster_pwrite(struct vfs_handle_struct *handle,
784 files_struct *fsp, const void *data,
785 size_t n, off_t offset)
787 return glfs_pwrite(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), data, n, offset, 0);
790 static off_t vfs_gluster_lseek(struct vfs_handle_struct *handle,
791 files_struct *fsp, off_t offset, int whence)
793 return glfs_lseek(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), offset, whence);
796 static ssize_t vfs_gluster_sendfile(struct vfs_handle_struct *handle, int tofd,
797 files_struct *fromfsp,
798 const DATA_BLOB *hdr,
799 off_t offset, size_t n)
805 static ssize_t vfs_gluster_recvfile(struct vfs_handle_struct *handle,
806 int fromfd, files_struct *tofsp,
807 off_t offset, size_t n)
813 static int vfs_gluster_rename(struct vfs_handle_struct *handle,
814 const struct smb_filename *smb_fname_src,
815 const struct smb_filename *smb_fname_dst)
817 return glfs_rename(handle->data, smb_fname_src->base_name,
818 smb_fname_dst->base_name);
821 static int vfs_gluster_fsync(struct vfs_handle_struct *handle,
824 return glfs_fsync(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp));
827 static struct tevent_req *vfs_gluster_fsync_send(struct vfs_handle_struct
828 *handle, TALLOC_CTX *mem_ctx,
829 struct tevent_context *ev,
832 struct tevent_req *req = NULL;
833 struct glusterfs_aio_state *state = NULL;
836 state = aio_state_create(mem_ctx);
844 if (!init_gluster_aio(handle)) {
845 tevent_req_error(req, EIO);
846 return tevent_req_post(req, ev);
849 PROFILE_TIMESTAMP(&state->start);
850 ret = glfs_fsync_async(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle,
851 fsp), aio_glusterfs_done, req);
853 tevent_req_error(req, -ret);
854 return tevent_req_post(req, ev);
859 static int vfs_gluster_fsync_recv(struct tevent_req *req,
860 struct vfs_aio_state *vfs_aio_state)
863 * Use implicit conversion ssize_t->int
865 return vfs_gluster_recv(req, vfs_aio_state);
868 static int vfs_gluster_stat(struct vfs_handle_struct *handle,
869 struct smb_filename *smb_fname)
874 ret = glfs_stat(handle->data, smb_fname->base_name, &st);
876 smb_stat_ex_from_stat(&smb_fname->st, &st);
878 if (ret < 0 && errno != ENOENT) {
879 DEBUG(0, ("glfs_stat(%s) failed: %s\n",
880 smb_fname->base_name, strerror(errno)));
885 static int vfs_gluster_fstat(struct vfs_handle_struct *handle,
886 files_struct *fsp, SMB_STRUCT_STAT *sbuf)
891 ret = glfs_fstat(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), &st);
893 smb_stat_ex_from_stat(sbuf, &st);
896 DEBUG(0, ("glfs_fstat(%d) failed: %s\n",
897 fsp->fh->fd, strerror(errno)));
902 static int vfs_gluster_lstat(struct vfs_handle_struct *handle,
903 struct smb_filename *smb_fname)
908 ret = glfs_lstat(handle->data, smb_fname->base_name, &st);
910 smb_stat_ex_from_stat(&smb_fname->st, &st);
912 if (ret < 0 && errno != ENOENT) {
913 DEBUG(0, ("glfs_lstat(%s) failed: %s\n",
914 smb_fname->base_name, strerror(errno)));
919 static uint64_t vfs_gluster_get_alloc_size(struct vfs_handle_struct *handle,
921 const SMB_STRUCT_STAT *sbuf)
923 return sbuf->st_ex_blocks * 512;
926 static int vfs_gluster_unlink(struct vfs_handle_struct *handle,
927 const struct smb_filename *smb_fname)
929 return glfs_unlink(handle->data, smb_fname->base_name);
932 static int vfs_gluster_chmod(struct vfs_handle_struct *handle,
933 const struct smb_filename *smb_fname,
936 return glfs_chmod(handle->data, smb_fname->base_name, mode);
939 static int vfs_gluster_fchmod(struct vfs_handle_struct *handle,
940 files_struct *fsp, mode_t mode)
942 return glfs_fchmod(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), mode);
945 static int vfs_gluster_chown(struct vfs_handle_struct *handle,
946 const struct smb_filename *smb_fname,
950 return glfs_chown(handle->data, smb_fname->base_name, uid, gid);
953 static int vfs_gluster_fchown(struct vfs_handle_struct *handle,
954 files_struct *fsp, uid_t uid, gid_t gid)
956 return glfs_fchown(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), uid, gid);
959 static int vfs_gluster_lchown(struct vfs_handle_struct *handle,
960 const struct smb_filename *smb_fname,
964 return glfs_lchown(handle->data, smb_fname->base_name, uid, gid);
967 static int vfs_gluster_chdir(struct vfs_handle_struct *handle, const char *path)
969 return glfs_chdir(handle->data, path);
972 static char *vfs_gluster_getwd(struct vfs_handle_struct *handle)
977 cwd = SMB_CALLOC_ARRAY(char, PATH_MAX);
982 ret = glfs_getcwd(handle->data, cwd, PATH_MAX - 1);
989 static int vfs_gluster_ntimes(struct vfs_handle_struct *handle,
990 const struct smb_filename *smb_fname,
991 struct smb_file_time *ft)
993 struct timespec times[2];
995 if (null_timespec(ft->atime)) {
996 times[0].tv_sec = smb_fname->st.st_ex_atime.tv_sec;
997 times[0].tv_nsec = smb_fname->st.st_ex_atime.tv_nsec;
999 times[0].tv_sec = ft->atime.tv_sec;
1000 times[0].tv_nsec = ft->atime.tv_nsec;
1003 if (null_timespec(ft->mtime)) {
1004 times[1].tv_sec = smb_fname->st.st_ex_mtime.tv_sec;
1005 times[1].tv_nsec = smb_fname->st.st_ex_mtime.tv_nsec;
1007 times[1].tv_sec = ft->mtime.tv_sec;
1008 times[1].tv_nsec = ft->mtime.tv_nsec;
1011 if ((timespec_compare(×[0],
1012 &smb_fname->st.st_ex_atime) == 0) &&
1013 (timespec_compare(×[1],
1014 &smb_fname->st.st_ex_mtime) == 0)) {
1018 return glfs_utimens(handle->data, smb_fname->base_name, times);
1021 static int vfs_gluster_ftruncate(struct vfs_handle_struct *handle,
1022 files_struct *fsp, off_t offset)
1024 return glfs_ftruncate(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), offset);
1027 static int vfs_gluster_fallocate(struct vfs_handle_struct *handle,
1028 struct files_struct *fsp,
1030 off_t offset, off_t len)
1032 /* TODO: add support using glfs_fallocate() and glfs_zerofill() */
1037 static char *vfs_gluster_realpath(struct vfs_handle_struct *handle,
1040 return glfs_realpath(handle->data, path, 0);
1043 static bool vfs_gluster_lock(struct vfs_handle_struct *handle,
1044 files_struct *fsp, int op, off_t offset,
1045 off_t count, int type)
1047 struct flock flock = { 0, };
1050 flock.l_type = type;
1051 flock.l_whence = SEEK_SET;
1052 flock.l_start = offset;
1053 flock.l_len = count;
1056 ret = glfs_posix_lock(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), op, &flock);
1058 if (op == F_GETLK) {
1059 /* lock query, true if someone else has locked */
1061 (flock.l_type != F_UNLCK) &&
1062 (flock.l_pid != 0) && (flock.l_pid != getpid()))
1075 static int vfs_gluster_kernel_flock(struct vfs_handle_struct *handle,
1076 files_struct *fsp, uint32_t share_mode,
1077 uint32_t access_mask)
1083 static int vfs_gluster_linux_setlease(struct vfs_handle_struct *handle,
1084 files_struct *fsp, int leasetype)
1090 static bool vfs_gluster_getlock(struct vfs_handle_struct *handle,
1091 files_struct *fsp, off_t *poffset,
1092 off_t *pcount, int *ptype, pid_t *ppid)
1094 struct flock flock = { 0, };
1097 flock.l_type = *ptype;
1098 flock.l_whence = SEEK_SET;
1099 flock.l_start = *poffset;
1100 flock.l_len = *pcount;
1103 ret = glfs_posix_lock(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), F_GETLK, &flock);
1109 *ptype = flock.l_type;
1110 *poffset = flock.l_start;
1111 *pcount = flock.l_len;
1112 *ppid = flock.l_pid;
1117 static int vfs_gluster_symlink(struct vfs_handle_struct *handle,
1118 const char *oldpath, const char *newpath)
1120 return glfs_symlink(handle->data, oldpath, newpath);
1123 static int vfs_gluster_readlink(struct vfs_handle_struct *handle,
1124 const char *path, char *buf, size_t bufsiz)
1126 return glfs_readlink(handle->data, path, buf, bufsiz);
1129 static int vfs_gluster_link(struct vfs_handle_struct *handle,
1130 const char *oldpath, const char *newpath)
1132 return glfs_link(handle->data, oldpath, newpath);
1135 static int vfs_gluster_mknod(struct vfs_handle_struct *handle, const char *path,
1136 mode_t mode, SMB_DEV_T dev)
1138 return glfs_mknod(handle->data, path, mode, dev);
1141 static int vfs_gluster_chflags(struct vfs_handle_struct *handle,
1142 const char *path, unsigned int flags)
1148 static int vfs_gluster_get_real_filename(struct vfs_handle_struct *handle,
1149 const char *path, const char *name,
1150 TALLOC_CTX *mem_ctx, char **found_name)
1153 char key_buf[NAME_MAX + 64];
1154 char val_buf[NAME_MAX + 1];
1156 if (strlen(name) >= NAME_MAX) {
1157 errno = ENAMETOOLONG;
1161 snprintf(key_buf, NAME_MAX + 64,
1162 "glusterfs.get_real_filename:%s", name);
1164 ret = glfs_getxattr(handle->data, path, key_buf, val_buf, NAME_MAX + 1);
1166 if (errno == ENODATA) {
1172 *found_name = talloc_strdup(mem_ctx, val_buf);
1173 if (found_name[0] == NULL) {
1180 static const char *vfs_gluster_connectpath(struct vfs_handle_struct *handle,
1181 const char *filename)
1183 return handle->conn->connectpath;
1188 static ssize_t vfs_gluster_getxattr(struct vfs_handle_struct *handle,
1189 const char *path, const char *name,
1190 void *value, size_t size)
1192 return glfs_getxattr(handle->data, path, name, value, size);
1195 static ssize_t vfs_gluster_fgetxattr(struct vfs_handle_struct *handle,
1196 files_struct *fsp, const char *name,
1197 void *value, size_t size)
1199 return glfs_fgetxattr(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), name, value, size);
1202 static ssize_t vfs_gluster_listxattr(struct vfs_handle_struct *handle,
1203 const char *path, char *list, size_t size)
1205 return glfs_listxattr(handle->data, path, list, size);
1208 static ssize_t vfs_gluster_flistxattr(struct vfs_handle_struct *handle,
1209 files_struct *fsp, char *list,
1212 return glfs_flistxattr(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), list, size);
1215 static int vfs_gluster_removexattr(struct vfs_handle_struct *handle,
1216 const char *path, const char *name)
1218 return glfs_removexattr(handle->data, path, name);
1221 static int vfs_gluster_fremovexattr(struct vfs_handle_struct *handle,
1222 files_struct *fsp, const char *name)
1224 return glfs_fremovexattr(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), name);
1227 static int vfs_gluster_setxattr(struct vfs_handle_struct *handle,
1228 const char *path, const char *name,
1229 const void *value, size_t size, int flags)
1231 return glfs_setxattr(handle->data, path, name, value, size, flags);
1234 static int vfs_gluster_fsetxattr(struct vfs_handle_struct *handle,
1235 files_struct *fsp, const char *name,
1236 const void *value, size_t size, int flags)
1238 return glfs_fsetxattr(*(glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp), name, value, size,
1242 /* AIO Operations */
1244 static bool vfs_gluster_aio_force(struct vfs_handle_struct *handle,
1250 /* Offline Operations */
1252 static bool vfs_gluster_is_offline(struct vfs_handle_struct *handle,
1253 const struct smb_filename *fname,
1254 SMB_STRUCT_STAT *sbuf)
1259 static int vfs_gluster_set_offline(struct vfs_handle_struct *handle,
1260 const struct smb_filename *fname)
1266 static struct vfs_fn_pointers glusterfs_fns = {
1268 /* Disk Operations */
1270 .connect_fn = vfs_gluster_connect,
1271 .disconnect_fn = vfs_gluster_disconnect,
1272 .disk_free_fn = vfs_gluster_disk_free,
1273 .get_quota_fn = vfs_gluster_get_quota,
1274 .set_quota_fn = vfs_gluster_set_quota,
1275 .statvfs_fn = vfs_gluster_statvfs,
1276 .fs_capabilities_fn = vfs_gluster_fs_capabilities,
1278 .get_dfs_referrals_fn = NULL,
1280 /* Directory Operations */
1282 .opendir_fn = vfs_gluster_opendir,
1283 .fdopendir_fn = vfs_gluster_fdopendir,
1284 .readdir_fn = vfs_gluster_readdir,
1285 .seekdir_fn = vfs_gluster_seekdir,
1286 .telldir_fn = vfs_gluster_telldir,
1287 .rewind_dir_fn = vfs_gluster_rewinddir,
1288 .mkdir_fn = vfs_gluster_mkdir,
1289 .rmdir_fn = vfs_gluster_rmdir,
1290 .closedir_fn = vfs_gluster_closedir,
1291 .init_search_op_fn = vfs_gluster_init_search_op,
1293 /* File Operations */
1295 .open_fn = vfs_gluster_open,
1296 .create_file_fn = NULL,
1297 .close_fn = vfs_gluster_close,
1298 .read_fn = vfs_gluster_read,
1299 .pread_fn = vfs_gluster_pread,
1300 .pread_send_fn = vfs_gluster_pread_send,
1301 .pread_recv_fn = vfs_gluster_recv,
1302 .write_fn = vfs_gluster_write,
1303 .pwrite_fn = vfs_gluster_pwrite,
1304 .pwrite_send_fn = vfs_gluster_pwrite_send,
1305 .pwrite_recv_fn = vfs_gluster_recv,
1306 .lseek_fn = vfs_gluster_lseek,
1307 .sendfile_fn = vfs_gluster_sendfile,
1308 .recvfile_fn = vfs_gluster_recvfile,
1309 .rename_fn = vfs_gluster_rename,
1310 .fsync_fn = vfs_gluster_fsync,
1311 .fsync_send_fn = vfs_gluster_fsync_send,
1312 .fsync_recv_fn = vfs_gluster_fsync_recv,
1314 .stat_fn = vfs_gluster_stat,
1315 .fstat_fn = vfs_gluster_fstat,
1316 .lstat_fn = vfs_gluster_lstat,
1317 .get_alloc_size_fn = vfs_gluster_get_alloc_size,
1318 .unlink_fn = vfs_gluster_unlink,
1320 .chmod_fn = vfs_gluster_chmod,
1321 .fchmod_fn = vfs_gluster_fchmod,
1322 .chown_fn = vfs_gluster_chown,
1323 .fchown_fn = vfs_gluster_fchown,
1324 .lchown_fn = vfs_gluster_lchown,
1325 .chdir_fn = vfs_gluster_chdir,
1326 .getwd_fn = vfs_gluster_getwd,
1327 .ntimes_fn = vfs_gluster_ntimes,
1328 .ftruncate_fn = vfs_gluster_ftruncate,
1329 .fallocate_fn = vfs_gluster_fallocate,
1330 .lock_fn = vfs_gluster_lock,
1331 .kernel_flock_fn = vfs_gluster_kernel_flock,
1332 .linux_setlease_fn = vfs_gluster_linux_setlease,
1333 .getlock_fn = vfs_gluster_getlock,
1334 .symlink_fn = vfs_gluster_symlink,
1335 .readlink_fn = vfs_gluster_readlink,
1336 .link_fn = vfs_gluster_link,
1337 .mknod_fn = vfs_gluster_mknod,
1338 .realpath_fn = vfs_gluster_realpath,
1339 .chflags_fn = vfs_gluster_chflags,
1340 .file_id_create_fn = NULL,
1341 .copy_chunk_send_fn = NULL,
1342 .copy_chunk_recv_fn = NULL,
1343 .streaminfo_fn = NULL,
1344 .get_real_filename_fn = vfs_gluster_get_real_filename,
1345 .connectpath_fn = vfs_gluster_connectpath,
1347 .brl_lock_windows_fn = NULL,
1348 .brl_unlock_windows_fn = NULL,
1349 .brl_cancel_windows_fn = NULL,
1350 .strict_lock_fn = NULL,
1351 .strict_unlock_fn = NULL,
1352 .translate_name_fn = NULL,
1355 /* NT ACL Operations */
1356 .fget_nt_acl_fn = NULL,
1357 .get_nt_acl_fn = NULL,
1358 .fset_nt_acl_fn = NULL,
1359 .audit_file_fn = NULL,
1361 /* Posix ACL Operations */
1362 .chmod_acl_fn = NULL, /* passthrough to default */
1363 .fchmod_acl_fn = NULL, /* passthrough to default */
1364 .sys_acl_get_file_fn = posixacl_xattr_acl_get_file,
1365 .sys_acl_get_fd_fn = posixacl_xattr_acl_get_fd,
1366 .sys_acl_blob_get_file_fn = posix_sys_acl_blob_get_file,
1367 .sys_acl_blob_get_fd_fn = posix_sys_acl_blob_get_fd,
1368 .sys_acl_set_file_fn = posixacl_xattr_acl_set_file,
1369 .sys_acl_set_fd_fn = posixacl_xattr_acl_set_fd,
1370 .sys_acl_delete_def_file_fn = posixacl_xattr_acl_delete_def_file,
1373 .getxattr_fn = vfs_gluster_getxattr,
1374 .fgetxattr_fn = vfs_gluster_fgetxattr,
1375 .listxattr_fn = vfs_gluster_listxattr,
1376 .flistxattr_fn = vfs_gluster_flistxattr,
1377 .removexattr_fn = vfs_gluster_removexattr,
1378 .fremovexattr_fn = vfs_gluster_fremovexattr,
1379 .setxattr_fn = vfs_gluster_setxattr,
1380 .fsetxattr_fn = vfs_gluster_fsetxattr,
1382 /* AIO Operations */
1383 .aio_force_fn = vfs_gluster_aio_force,
1385 /* Offline Operations */
1386 .is_offline_fn = vfs_gluster_is_offline,
1387 .set_offline_fn = vfs_gluster_set_offline,
1389 /* Durable handle Operations */
1390 .durable_cookie_fn = NULL,
1391 .durable_disconnect_fn = NULL,
1392 .durable_reconnect_fn = NULL,
1395 NTSTATUS vfs_glusterfs_init(void);
1396 NTSTATUS vfs_glusterfs_init(void)
1398 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
1399 "glusterfs", &glusterfs_fns);