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s3: smbd: Add SMB2_FILE_POSIX_INFORMATION getinfo info level (100 on the wire).
[Samba.git] / source3 / modules / vfs_glusterfs.c
blob31e606ba5d045124bdb32cb4e46da10622cc86db
1 /*
2 Unix SMB/CIFS implementation.
3
4 Wrap GlusterFS GFAPI calls in vfs functions.
5
6 Copyright (c) 2013 Anand Avati <avati@redhat.com>
7
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.
12
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.
17
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/>.
20 */
21
22 /**
23 * @file vfs_glusterfs.c
24 * @author Anand Avati <avati@redhat.com>
25 * @date May 2013
26 * @brief Samba VFS module for glusterfs
27 *
28 * @todo
29 * - sendfile/recvfile support
30 *
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.
35 *
36 */
37
38 #include "includes.h"
39 #include "smbd/smbd.h"
40 #include <stdio.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"
49
50 #define DEFAULT_VOLFILE_SERVER "localhost"
51 #define GLUSTER_NAME_MAX 255
52
53 /**
54 * Helper to convert struct stat to struct stat_ex.
55 */
56 static void smb_stat_ex_from_stat(struct stat_ex *dst, const struct stat *src)
57 {
58 ZERO_STRUCTP(dst);
59
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 #ifdef STAT_HAVE_NSEC
75 dst->st_ex_atime.tv_nsec = src->st_atime_nsec;
76 dst->st_ex_mtime.tv_nsec = src->st_mtime_nsec;
77 dst->st_ex_ctime.tv_nsec = src->st_ctime_nsec;
78 dst->st_ex_btime.tv_nsec = src->st_mtime_nsec;
79 #endif
80 }
81
82 /* pre-opened glfs_t */
83
84 static struct glfs_preopened {
85 char *volume;
86 char *connectpath;
87 glfs_t *fs;
88 int ref;
89 struct glfs_preopened *next, *prev;
90 } *glfs_preopened;
91
92
93 static int glfs_set_preopened(const char *volume, const char *connectpath, glfs_t *fs)
94 {
95 struct glfs_preopened *entry = NULL;
96
97 entry = talloc_zero(NULL, struct glfs_preopened);
98 if (!entry) {
99 errno = ENOMEM;
100 return -1;
101 }
102
103 entry->volume = talloc_strdup(entry, volume);
104 if (!entry->volume) {
105 talloc_free(entry);
106 errno = ENOMEM;
107 return -1;
108 }
109
110 entry->connectpath = talloc_strdup(entry, connectpath);
111 if (entry->connectpath == NULL) {
112 talloc_free(entry);
113 errno = ENOMEM;
114 return -1;
115 }
116
117 entry->fs = fs;
118 entry->ref = 1;
119
120 DLIST_ADD(glfs_preopened, entry);
121
122 return 0;
123 }
124
125 static glfs_t *glfs_find_preopened(const char *volume, const char *connectpath)
126 {
127 struct glfs_preopened *entry = NULL;
128
129 for (entry = glfs_preopened; entry; entry = entry->next) {
130 if (strcmp(entry->volume, volume) == 0 &&
131 strcmp(entry->connectpath, connectpath) == 0)
132 {
133 entry->ref++;
134 return entry->fs;
135 }
136 }
137
138 return NULL;
139 }
140
141 static void glfs_clear_preopened(glfs_t *fs)
142 {
143 struct glfs_preopened *entry = NULL;
144
145 for (entry = glfs_preopened; entry; entry = entry->next) {
146 if (entry->fs == fs) {
147 if (--entry->ref)
148 return;
149
150 DLIST_REMOVE(glfs_preopened, entry);
151
152 glfs_fini(entry->fs);
153 talloc_free(entry);
154 break;
155 }
156 }
157 }
158
159 static int vfs_gluster_set_volfile_servers(glfs_t *fs,
160 const char *volfile_servers)
161 {
162 char *server = NULL;
163 size_t server_count = 0;
164 size_t server_success = 0;
165 int ret = -1;
166 TALLOC_CTX *frame = talloc_stackframe();
167
168 DBG_INFO("servers list %s\n", volfile_servers);
169
170 while (next_token_talloc(frame, &volfile_servers, &server, " \t")) {
171 char *transport = NULL;
172 char *host = NULL;
173 int port = 0;
174
175 server_count++;
176 DBG_INFO("server %zu %s\n", server_count, server);
177
178 /* Determine the transport type */
179 if (strncmp(server, "unix+", 5) == 0) {
180 port = 0;
181 transport = talloc_strdup(frame, "unix");
182 if (!transport) {
183 errno = ENOMEM;
184 goto out;
185 }
186 host = talloc_strdup(frame, server + 5);
187 if (!host) {
188 errno = ENOMEM;
189 goto out;
190 }
191 } else {
192 char *p = NULL;
193 char *port_index = NULL;
194
195 if (strncmp(server, "tcp+", 4) == 0) {
196 server += 4;
197 }
198
199 /* IPv6 is enclosed in []
200 * ':' before ']' is part of IPv6
201 * ':' after ']' indicates port
202 */
203 p = server;
204 if (server[0] == '[') {
205 server++;
206 p = index(server, ']');
207 if (p == NULL) {
208 /* Malformed IPv6 */
209 continue;
210 }
211 p[0] = '\0';
212 p++;
213 }
214
215 port_index = index(p, ':');
216
217 if (port_index == NULL) {
218 port = 0;
219 } else {
220 port = atoi(port_index + 1);
221 port_index[0] = '\0';
222 }
223 transport = talloc_strdup(frame, "tcp");
224 if (!transport) {
225 errno = ENOMEM;
226 goto out;
227 }
228 host = talloc_strdup(frame, server);
229 if (!host) {
230 errno = ENOMEM;
231 goto out;
232 }
233 }
234
235 DBG_INFO("Calling set volfile server with params "
236 "transport=%s, host=%s, port=%d\n", transport,
237 host, port);
238
239 ret = glfs_set_volfile_server(fs, transport, host, port);
240 if (ret < 0) {
241 DBG_WARNING("Failed to set volfile_server "
242 "transport=%s, host=%s, port=%d (%s)\n",
243 transport, host, port, strerror(errno));
244 } else {
245 server_success++;
246 }
247 }
248
249 out:
250 if (server_count == 0) {
251 ret = -1;
252 } else if (server_success < server_count) {
253 DBG_WARNING("Failed to set %zu out of %zu servers parsed\n",
254 server_count - server_success, server_count);
255 ret = 0;
256 }
257
258 TALLOC_FREE(frame);
259 return ret;
260 }
261
262 /* Disk Operations */
263
264 static int check_for_write_behind_translator(TALLOC_CTX *mem_ctx,
265 glfs_t *fs,
266 const char *volume)
267 {
268 char *buf = NULL;
269 char **lines = NULL;
270 int numlines = 0;
271 int i;
272 char *option;
273 bool write_behind_present = false;
274 size_t newlen;
275 int ret;
276
277 ret = glfs_get_volfile(fs, NULL, 0);
278 if (ret == 0) {
279 DBG_ERR("%s: Failed to get volfile for "
280 "volume (%s): No volfile\n",
281 volume,
282 strerror(errno));
283 return -1;
284 }
285 if (ret > 0) {
286 DBG_ERR("%s: Invalid return %d for glfs_get_volfile for "
287 "volume (%s): No volfile\n",
288 volume,
289 ret,
290 strerror(errno));
291 return -1;
292 }
293
294 newlen = 0 - ret;
295
296 buf = talloc_zero_array(mem_ctx, char, newlen);
297 if (buf == NULL) {
298 return -1;
299 }
300
301 ret = glfs_get_volfile(fs, buf, newlen);
302 if (ret != newlen) {
303 TALLOC_FREE(buf);
304 DBG_ERR("%s: Failed to get volfile for volume (%s)\n",
305 volume, strerror(errno));
306 return -1;
307 }
308
309 option = talloc_asprintf(mem_ctx, "volume %s-write-behind", volume);
310 if (option == NULL) {
311 TALLOC_FREE(buf);
312 return -1;
313 }
314
315 /*
316 * file_lines_parse() plays horrible tricks with
317 * the passed-in talloc pointers and the hierarcy
318 * which makes freeing hard to get right.
319 *
320 * As we know mem_ctx is freed by the caller, after
321 * this point don't free on exit and let the caller
322 * handle it. This violates good Samba coding practice
323 * but we know we're not leaking here.
324 */
325
326 lines = file_lines_parse(buf,
327 newlen,
328 &numlines,
329 mem_ctx);
330 if (lines == NULL || numlines <= 0) {
331 return -1;
332 }
333 /* On success, buf is now a talloc child of lines !! */
334
335 for (i=0; i < numlines; i++) {
336 if (strequal(lines[i], option)) {
337 write_behind_present = true;
338 break;
339 }
340 }
341
342 if (write_behind_present) {
343 DBG_ERR("Write behind translator is enabled for "
344 "volume (%s), refusing to connect! "
345 "Please turn off the write behind translator by calling "
346 "'gluster volume set %s performance.write-behind off' "
347 "on the commandline. "
348 "Check the vfs_glusterfs(8) manpage for "
349 "further details.\n",
350 volume, volume);
351 return -1;
352 }
353
354 return 0;
355 }
356
357 static int vfs_gluster_connect(struct vfs_handle_struct *handle,
358 const char *service,
359 const char *user)
360 {
361 const struct loadparm_substitution *lp_sub =
362 loadparm_s3_global_substitution();
363 const char *volfile_servers;
364 const char *volume;
365 char *logfile;
366 int loglevel;
367 glfs_t *fs = NULL;
368 TALLOC_CTX *tmp_ctx;
369 int ret = 0;
370 bool write_behind_pass_through_set = false;
371
372 tmp_ctx = talloc_new(NULL);
373 if (tmp_ctx == NULL) {
374 ret = -1;
375 goto done;
376 }
377 logfile = lp_parm_substituted_string(tmp_ctx,
378 lp_sub,
379 SNUM(handle->conn),
380 "glusterfs",
381 "logfile",
382 NULL);
383
384 loglevel = lp_parm_int(SNUM(handle->conn), "glusterfs", "loglevel", -1);
385
386 volfile_servers = lp_parm_substituted_string(tmp_ctx,
387 lp_sub,
388 SNUM(handle->conn),
389 "glusterfs",
390 "volfile_server",
391 NULL);
392 if (volfile_servers == NULL) {
393 volfile_servers = DEFAULT_VOLFILE_SERVER;
394 }
395
396 volume = lp_parm_const_string(SNUM(handle->conn), "glusterfs", "volume",
397 NULL);
398 if (volume == NULL) {
399 volume = service;
400 }
401
402 fs = glfs_find_preopened(volume, handle->conn->connectpath);
403 if (fs) {
404 goto done;
405 }
406
407 fs = glfs_new(volume);
408 if (fs == NULL) {
409 ret = -1;
410 goto done;
411 }
412
413 ret = vfs_gluster_set_volfile_servers(fs, volfile_servers);
414 if (ret < 0) {
415 DBG_ERR("Failed to set volfile_servers from list %s\n",
416 volfile_servers);
417 goto done;
418 }
419
420 ret = glfs_set_xlator_option(fs, "*-md-cache", "cache-posix-acl",
421 "true");
422 if (ret < 0) {
423 DEBUG(0, ("%s: Failed to set xlator options\n", volume));
424 goto done;
425 }
426
427 ret = glfs_set_xlator_option(fs, "*-md-cache", "cache-selinux",
428 "true");
429 if (ret < 0) {
430 DEBUG(0, ("%s: Failed to set xlator options\n", volume));
431 goto done;
432 }
433
434 ret = glfs_set_xlator_option(fs, "*-snapview-client",
435 "snapdir-entry-path",
436 handle->conn->connectpath);
437 if (ret < 0) {
438 DEBUG(0, ("%s: Failed to set xlator option:"
439 " snapdir-entry-path\n", volume));
440 goto done;
441 }
442
443 #ifdef HAVE_GFAPI_VER_7_9
444 ret = glfs_set_xlator_option(fs, "*-write-behind", "pass-through",
445 "true");
446 if (ret < 0) {
447 DBG_ERR("%s: Failed to set xlator option: pass-through\n",
448 volume);
449 goto done;
450 }
451 write_behind_pass_through_set = true;
452 #endif
453
454 ret = glfs_set_logging(fs, logfile, loglevel);
455 if (ret < 0) {
456 DEBUG(0, ("%s: Failed to set logfile %s loglevel %d\n",
457 volume, logfile, loglevel));
458 goto done;
459 }
460
461 ret = glfs_init(fs);
462 if (ret < 0) {
463 DEBUG(0, ("%s: Failed to initialize volume (%s)\n",
464 volume, strerror(errno)));
465 goto done;
466 }
467
468 if (!write_behind_pass_through_set) {
469 ret = check_for_write_behind_translator(tmp_ctx, fs, volume);
470 if (ret < 0) {
471 goto done;
472 }
473 }
474
475 ret = glfs_set_preopened(volume, handle->conn->connectpath, fs);
476 if (ret < 0) {
477 DEBUG(0, ("%s: Failed to register volume (%s)\n",
478 volume, strerror(errno)));
479 goto done;
480 }
481
482 /*
483 * The shadow_copy2 module will fail to export subdirectories
484 * of a gluster volume unless we specify the mount point,
485 * because the detection fails if the file system is not
486 * locally mounted:
487 * https://bugzilla.samba.org/show_bug.cgi?id=13091
488 */
489 lp_do_parameter(SNUM(handle->conn), "shadow:mountpoint", "/");
490
491 /*
492 * Unless we have an async implementation of getxattrat turn this off.
493 */
494 lp_do_parameter(SNUM(handle->conn), "smbd async dosmode", "false");
495
496 done:
497 if (ret < 0) {
498 if (fs)
499 glfs_fini(fs);
500 } else {
501 DBG_ERR("%s: Initialized volume from servers %s\n",
502 volume, volfile_servers);
503 handle->data = fs;
504 }
505 talloc_free(tmp_ctx);
506 return ret;
507 }
508
509 static void vfs_gluster_disconnect(struct vfs_handle_struct *handle)
510 {
511 glfs_t *fs = NULL;
512
513 fs = handle->data;
514
515 glfs_clear_preopened(fs);
516 }
517
518 static uint64_t vfs_gluster_disk_free(struct vfs_handle_struct *handle,
519 const struct smb_filename *smb_fname,
520 uint64_t *bsize_p,
521 uint64_t *dfree_p,
522 uint64_t *dsize_p)
523 {
524 struct statvfs statvfs = { 0, };
525 int ret;
526
527 ret = glfs_statvfs(handle->data, smb_fname->base_name, &statvfs);
528 if (ret < 0) {
529 return -1;
530 }
531
532 if (bsize_p != NULL) {
533 *bsize_p = (uint64_t)statvfs.f_bsize; /* Block size */
534 }
535 if (dfree_p != NULL) {
536 *dfree_p = (uint64_t)statvfs.f_bavail; /* Available Block units */
537 }
538 if (dsize_p != NULL) {
539 *dsize_p = (uint64_t)statvfs.f_blocks; /* Total Block units */
540 }
541
542 return (uint64_t)statvfs.f_bavail;
543 }
544
545 static int vfs_gluster_get_quota(struct vfs_handle_struct *handle,
546 const struct smb_filename *smb_fname,
547 enum SMB_QUOTA_TYPE qtype,
548 unid_t id,
549 SMB_DISK_QUOTA *qt)
550 {
551 errno = ENOSYS;
552 return -1;
553 }
554
555 static int
556 vfs_gluster_set_quota(struct vfs_handle_struct *handle,
557 enum SMB_QUOTA_TYPE qtype, unid_t id, SMB_DISK_QUOTA *qt)
558 {
559 errno = ENOSYS;
560 return -1;
561 }
562
563 static int vfs_gluster_statvfs(struct vfs_handle_struct *handle,
564 const struct smb_filename *smb_fname,
565 struct vfs_statvfs_struct *vfs_statvfs)
566 {
567 struct statvfs statvfs = { 0, };
568 int ret;
569
570 ret = glfs_statvfs(handle->data, smb_fname->base_name, &statvfs);
571 if (ret < 0) {
572 DEBUG(0, ("glfs_statvfs(%s) failed: %s\n",
573 smb_fname->base_name, strerror(errno)));
574 return -1;
575 }
576
577 ZERO_STRUCTP(vfs_statvfs);
578
579 vfs_statvfs->OptimalTransferSize = statvfs.f_frsize;
580 vfs_statvfs->BlockSize = statvfs.f_bsize;
581 vfs_statvfs->TotalBlocks = statvfs.f_blocks;
582 vfs_statvfs->BlocksAvail = statvfs.f_bfree;
583 vfs_statvfs->UserBlocksAvail = statvfs.f_bavail;
584 vfs_statvfs->TotalFileNodes = statvfs.f_files;
585 vfs_statvfs->FreeFileNodes = statvfs.f_ffree;
586 vfs_statvfs->FsIdentifier = statvfs.f_fsid;
587 vfs_statvfs->FsCapabilities =
588 FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
589
590 return ret;
591 }
592
593 static uint32_t vfs_gluster_fs_capabilities(struct vfs_handle_struct *handle,
594 enum timestamp_set_resolution *p_ts_res)
595 {
596 uint32_t caps = FILE_CASE_SENSITIVE_SEARCH | FILE_CASE_PRESERVED_NAMES;
597
598 #ifdef HAVE_GFAPI_VER_6
599 caps |= FILE_SUPPORTS_SPARSE_FILES;
600 #endif
601
602 #ifdef STAT_HAVE_NSEC
603 *p_ts_res = TIMESTAMP_SET_NT_OR_BETTER;
604 #endif
605
606 return caps;
607 }
608
609 static glfs_fd_t *vfs_gluster_fetch_glfd(struct vfs_handle_struct *handle,
610 const files_struct *fsp)
611 {
612 glfs_fd_t **glfd = (glfs_fd_t **)VFS_FETCH_FSP_EXTENSION(handle, fsp);
613 if (glfd == NULL) {
614 DBG_INFO("Failed to fetch fsp extension\n");
615 return NULL;
616 }
617 if (*glfd == NULL) {
618 DBG_INFO("Empty glfs_fd_t pointer\n");
619 return NULL;
620 }
621
622 return *glfd;
623 }
624
625 static DIR *vfs_gluster_fdopendir(struct vfs_handle_struct *handle,
626 files_struct *fsp, const char *mask,
627 uint32_t attributes)
628 {
629 glfs_fd_t *glfd = NULL;
630
631 glfd = glfs_opendir(handle->data, fsp->fsp_name->base_name);
632 if (glfd == NULL) {
633 return NULL;
634 }
635
636 return (DIR *)glfd;
637 }
638
639 static int vfs_gluster_closedir(struct vfs_handle_struct *handle, DIR *dirp)
640 {
641 int ret;
642
643 START_PROFILE(syscall_closedir);
644 ret = glfs_closedir((void *)dirp);
645 END_PROFILE(syscall_closedir);
646
647 return ret;
648 }
649
650 static struct dirent *vfs_gluster_readdir(struct vfs_handle_struct *handle,
651 struct files_struct *dirfsp,
652 DIR *dirp,
653 SMB_STRUCT_STAT *sbuf)
654 {
655 static char direntbuf[512];
656 int ret;
657 struct stat stat;
658 struct dirent *dirent = 0;
659
660 START_PROFILE(syscall_readdir);
661 if (sbuf != NULL) {
662 ret = glfs_readdirplus_r((void *)dirp, &stat, (void *)direntbuf,
663 &dirent);
664 } else {
665 ret = glfs_readdir_r((void *)dirp, (void *)direntbuf, &dirent);
666 }
667
668 if ((ret < 0) || (dirent == NULL)) {
669 END_PROFILE(syscall_readdir);
670 return NULL;
671 }
672
673 if (sbuf != NULL) {
674 SET_STAT_INVALID(*sbuf);
675 if (!S_ISLNK(stat.st_mode)) {
676 smb_stat_ex_from_stat(sbuf, &stat);
677 }
678 }
679
680 END_PROFILE(syscall_readdir);
681 return dirent;
682 }
683
684 static long vfs_gluster_telldir(struct vfs_handle_struct *handle, DIR *dirp)
685 {
686 long ret;
687
688 START_PROFILE(syscall_telldir);
689 ret = glfs_telldir((void *)dirp);
690 END_PROFILE(syscall_telldir);
691
692 return ret;
693 }
694
695 static void vfs_gluster_seekdir(struct vfs_handle_struct *handle, DIR *dirp,
696 long offset)
697 {
698 START_PROFILE(syscall_seekdir);
699 glfs_seekdir((void *)dirp, offset);
700 END_PROFILE(syscall_seekdir);
701 }
702
703 static void vfs_gluster_rewinddir(struct vfs_handle_struct *handle, DIR *dirp)
704 {
705 START_PROFILE(syscall_rewinddir);
706 glfs_seekdir((void *)dirp, 0);
707 END_PROFILE(syscall_rewinddir);
708 }
709
710 static int vfs_gluster_mkdirat(struct vfs_handle_struct *handle,
711 struct files_struct *dirfsp,
712 const struct smb_filename *smb_fname,
713 mode_t mode)
714 {
715 int ret;
716
717 #ifdef HAVE_GFAPI_VER_7_11
718 glfs_fd_t *pglfd = NULL;
719
720 START_PROFILE(syscall_mkdirat);
721
722 pglfd = vfs_gluster_fetch_glfd(handle, dirfsp);
723 if (pglfd == NULL) {
724 END_PROFILE(syscall_mkdirat);
725 DBG_ERR("Failed to fetch gluster fd\n");
726 return -1;
727 }
728
729 ret = glfs_mkdirat(pglfd, smb_fname->base_name, mode);
730 #else
731 struct smb_filename *full_fname = NULL;
732
733 START_PROFILE(syscall_mkdirat);
734
735 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
736 dirfsp,
737 smb_fname);
738 if (full_fname == NULL) {
739 END_PROFILE(syscall_mkdirat);
740 return -1;
741 }
742
743 ret = glfs_mkdir(handle->data, full_fname->base_name, mode);
744
745 TALLOC_FREE(full_fname);
746 #endif
747
748 END_PROFILE(syscall_mkdirat);
749
750 return ret;
751 }
752
753 static int vfs_gluster_openat(struct vfs_handle_struct *handle,
754 const struct files_struct *dirfsp,
755 const struct smb_filename *smb_fname,
756 files_struct *fsp,
757 const struct vfs_open_how *how)
758 {
759 int flags = how->flags;
760 struct smb_filename *full_fname = NULL;
761 bool have_opath = false;
762 bool became_root = false;
763 glfs_fd_t *glfd;
764 glfs_fd_t *pglfd = NULL;
765 glfs_fd_t **p_tmp;
766
767 START_PROFILE(syscall_openat);
768
769 if (how->resolve != 0) {
770 END_PROFILE(syscall_openat);
771 errno = ENOSYS;
772 return -1;
773 }
774
775 p_tmp = VFS_ADD_FSP_EXTENSION(handle, fsp, glfs_fd_t *, NULL);
776 if (p_tmp == NULL) {
777 END_PROFILE(syscall_openat);
778 errno = ENOMEM;
779 return -1;
780 }
781
782 #ifdef O_PATH
783 have_opath = true;
784 if (fsp->fsp_flags.is_pathref) {
785 flags |= O_PATH;
786 }
787 #endif
788
789 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
790 dirfsp,
791 smb_fname);
792 if (full_fname == NULL) {
793 END_PROFILE(syscall_openat);
794 return -1;
795 }
796
797 if (fsp->fsp_flags.is_pathref && !have_opath) {
798 become_root();
799 became_root = true;
800 }
801
802 if (fsp_get_pathref_fd(dirfsp) != AT_FDCWD) {
803 #ifdef HAVE_GFAPI_VER_7_11
804 /*
805 * Fetch Gluster fd for parent directory using dirfsp
806 * before calling glfs_openat();
807 */
808 pglfd = vfs_gluster_fetch_glfd(handle, dirfsp);
809 if (pglfd == NULL) {
810 END_PROFILE(syscall_openat);
811 DBG_ERR("Failed to fetch gluster fd\n");
812 return -1;
813 }
814
815 glfd = glfs_openat(pglfd,
816 smb_fname->base_name,
817 flags,
818 how->mode);
819 #else
820 /*
821 * Replace smb_fname with full_path constructed above.
822 */
823 smb_fname = full_fname;
824 #endif
825 }
826
827 if (pglfd == NULL) {
828 /*
829 * smb_fname can either be a full_path or the same one
830 * as received from the caller. In the latter case we
831 * are operating at current working directory.
832 */
833 if (flags & O_CREAT) {
834 glfd = glfs_creat(handle->data,
835 smb_fname->base_name,
836 flags,
837 how->mode);
838 } else {
839 glfd = glfs_open(handle->data,
840 smb_fname->base_name,
841 flags);
842 }
843 }
844
845 if (became_root) {
846 unbecome_root();
847 }
848
849 TALLOC_FREE(full_fname);
850
851 fsp->fsp_flags.have_proc_fds = false;
852
853 if (glfd == NULL) {
854 END_PROFILE(syscall_openat);
855 /* no extension destroy_fn, so no need to save errno */
856 VFS_REMOVE_FSP_EXTENSION(handle, fsp);
857 return -1;
858 }
859
860 *p_tmp = glfd;
861
862 END_PROFILE(syscall_openat);
863 /* An arbitrary value for error reporting, so you know its us. */
864 return 13371337;
865 }
866
867 static int vfs_gluster_close(struct vfs_handle_struct *handle,
868 files_struct *fsp)
869 {
870 int ret;
871 glfs_fd_t *glfd = NULL;
872
873 START_PROFILE(syscall_close);
874
875 glfd = vfs_gluster_fetch_glfd(handle, fsp);
876 if (glfd == NULL) {
877 END_PROFILE(syscall_close);
878 DBG_ERR("Failed to fetch gluster fd\n");
879 return -1;
880 }
881
882 VFS_REMOVE_FSP_EXTENSION(handle, fsp);
883
884 ret = glfs_close(glfd);
885 END_PROFILE(syscall_close);
886
887 return ret;
888 }
889
890 static ssize_t vfs_gluster_pread(struct vfs_handle_struct *handle,
891 files_struct *fsp, void *data, size_t n,
892 off_t offset)
893 {
894 ssize_t ret;
895 glfs_fd_t *glfd = NULL;
896
897 START_PROFILE_BYTES(syscall_pread, n);
898
899 glfd = vfs_gluster_fetch_glfd(handle, fsp);
900 if (glfd == NULL) {
901 END_PROFILE_BYTES(syscall_pread);
902 DBG_ERR("Failed to fetch gluster fd\n");
903 return -1;
904 }
905
906 #ifdef HAVE_GFAPI_VER_7_6
907 ret = glfs_pread(glfd, data, n, offset, 0, NULL);
908 #else
909 ret = glfs_pread(glfd, data, n, offset, 0);
910 #endif
911 END_PROFILE_BYTES(syscall_pread);
912
913 return ret;
914 }
915
916 struct vfs_gluster_pread_state {
917 ssize_t ret;
918 glfs_fd_t *fd;
919 void *buf;
920 size_t count;
921 off_t offset;
922
923 struct vfs_aio_state vfs_aio_state;
924 SMBPROFILE_BYTES_ASYNC_STATE(profile_bytes);
925 };
926
927 static void vfs_gluster_pread_do(void *private_data);
928 static void vfs_gluster_pread_done(struct tevent_req *subreq);
929 static int vfs_gluster_pread_state_destructor(struct vfs_gluster_pread_state *state);
930
931 static struct tevent_req *vfs_gluster_pread_send(struct vfs_handle_struct
932 *handle, TALLOC_CTX *mem_ctx,
933 struct tevent_context *ev,
934 files_struct *fsp,
935 void *data, size_t n,
936 off_t offset)
937 {
938 struct vfs_gluster_pread_state *state;
939 struct tevent_req *req, *subreq;
940
941 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
942 if (glfd == NULL) {
943 DBG_ERR("Failed to fetch gluster fd\n");
944 return NULL;
945 }
946
947 req = tevent_req_create(mem_ctx, &state, struct vfs_gluster_pread_state);
948 if (req == NULL) {
949 return NULL;
950 }
951
952 state->ret = -1;
953 state->fd = glfd;
954 state->buf = data;
955 state->count = n;
956 state->offset = offset;
957
958 SMBPROFILE_BYTES_ASYNC_START(syscall_asys_pread, profile_p,
959 state->profile_bytes, n);
960 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
961
962 subreq = pthreadpool_tevent_job_send(
963 state, ev, handle->conn->sconn->pool,
964 vfs_gluster_pread_do, state);
965 if (tevent_req_nomem(subreq, req)) {
966 return tevent_req_post(req, ev);
967 }
968 tevent_req_set_callback(subreq, vfs_gluster_pread_done, req);
969
970 talloc_set_destructor(state, vfs_gluster_pread_state_destructor);
971
972 return req;
973 }
974
975 static void vfs_gluster_pread_do(void *private_data)
976 {
977 struct vfs_gluster_pread_state *state = talloc_get_type_abort(
978 private_data, struct vfs_gluster_pread_state);
979 struct timespec start_time;
980 struct timespec end_time;
981
982 SMBPROFILE_BYTES_ASYNC_SET_BUSY(state->profile_bytes);
983
984 PROFILE_TIMESTAMP(&start_time);
985
986 do {
987 #ifdef HAVE_GFAPI_VER_7_6
988 state->ret = glfs_pread(state->fd, state->buf, state->count,
989 state->offset, 0, NULL);
990 #else
991 state->ret = glfs_pread(state->fd, state->buf, state->count,
992 state->offset, 0);
993 #endif
994 } while ((state->ret == -1) && (errno == EINTR));
995
996 if (state->ret == -1) {
997 state->vfs_aio_state.error = errno;
998 }
999
1000 PROFILE_TIMESTAMP(&end_time);
1001
1002 state->vfs_aio_state.duration = nsec_time_diff(&end_time, &start_time);
1003
1004 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
1005 }
1006
1007 static int vfs_gluster_pread_state_destructor(struct vfs_gluster_pread_state *state)
1008 {
1009 return -1;
1010 }
1011
1012 static void vfs_gluster_pread_done(struct tevent_req *subreq)
1013 {
1014 struct tevent_req *req = tevent_req_callback_data(
1015 subreq, struct tevent_req);
1016 struct vfs_gluster_pread_state *state = tevent_req_data(
1017 req, struct vfs_gluster_pread_state);
1018 int ret;
1019
1020 ret = pthreadpool_tevent_job_recv(subreq);
1021 TALLOC_FREE(subreq);
1022 SMBPROFILE_BYTES_ASYNC_END(state->profile_bytes);
1023 talloc_set_destructor(state, NULL);
1024 if (ret != 0) {
1025 if (ret != EAGAIN) {
1026 tevent_req_error(req, ret);
1027 return;
1028 }
1029 /*
1030 * If we get EAGAIN from pthreadpool_tevent_job_recv() this
1031 * means the lower level pthreadpool failed to create a new
1032 * thread. Fallback to sync processing in that case to allow
1033 * some progress for the client.
1034 */
1035 vfs_gluster_pread_do(state);
1036 }
1037
1038 tevent_req_done(req);
1039 }
1040
1041 static ssize_t vfs_gluster_pread_recv(struct tevent_req *req,
1042 struct vfs_aio_state *vfs_aio_state)
1043 {
1044 struct vfs_gluster_pread_state *state = tevent_req_data(
1045 req, struct vfs_gluster_pread_state);
1046
1047 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
1048 return -1;
1049 }
1050
1051 *vfs_aio_state = state->vfs_aio_state;
1052 return state->ret;
1053 }
1054
1055 struct vfs_gluster_pwrite_state {
1056 ssize_t ret;
1057 glfs_fd_t *fd;
1058 const void *buf;
1059 size_t count;
1060 off_t offset;
1061
1062 struct vfs_aio_state vfs_aio_state;
1063 SMBPROFILE_BYTES_ASYNC_STATE(profile_bytes);
1064 };
1065
1066 static void vfs_gluster_pwrite_do(void *private_data);
1067 static void vfs_gluster_pwrite_done(struct tevent_req *subreq);
1068 static int vfs_gluster_pwrite_state_destructor(struct vfs_gluster_pwrite_state *state);
1069
1070 static struct tevent_req *vfs_gluster_pwrite_send(struct vfs_handle_struct
1071 *handle, TALLOC_CTX *mem_ctx,
1072 struct tevent_context *ev,
1073 files_struct *fsp,
1074 const void *data, size_t n,
1075 off_t offset)
1076 {
1077 struct tevent_req *req, *subreq;
1078 struct vfs_gluster_pwrite_state *state;
1079
1080 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
1081 if (glfd == NULL) {
1082 DBG_ERR("Failed to fetch gluster fd\n");
1083 return NULL;
1084 }
1085
1086 req = tevent_req_create(mem_ctx, &state, struct vfs_gluster_pwrite_state);
1087 if (req == NULL) {
1088 return NULL;
1089 }
1090
1091 state->ret = -1;
1092 state->fd = glfd;
1093 state->buf = data;
1094 state->count = n;
1095 state->offset = offset;
1096
1097 SMBPROFILE_BYTES_ASYNC_START(syscall_asys_pwrite, profile_p,
1098 state->profile_bytes, n);
1099 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
1100
1101 subreq = pthreadpool_tevent_job_send(
1102 state, ev, handle->conn->sconn->pool,
1103 vfs_gluster_pwrite_do, state);
1104 if (tevent_req_nomem(subreq, req)) {
1105 return tevent_req_post(req, ev);
1106 }
1107 tevent_req_set_callback(subreq, vfs_gluster_pwrite_done, req);
1108
1109 talloc_set_destructor(state, vfs_gluster_pwrite_state_destructor);
1110
1111 return req;
1112 }
1113
1114 static void vfs_gluster_pwrite_do(void *private_data)
1115 {
1116 struct vfs_gluster_pwrite_state *state = talloc_get_type_abort(
1117 private_data, struct vfs_gluster_pwrite_state);
1118 struct timespec start_time;
1119 struct timespec end_time;
1120
1121 SMBPROFILE_BYTES_ASYNC_SET_BUSY(state->profile_bytes);
1122
1123 PROFILE_TIMESTAMP(&start_time);
1124
1125 do {
1126 #ifdef HAVE_GFAPI_VER_7_6
1127 state->ret = glfs_pwrite(state->fd, state->buf, state->count,
1128 state->offset, 0, NULL, NULL);
1129 #else
1130 state->ret = glfs_pwrite(state->fd, state->buf, state->count,
1131 state->offset, 0);
1132 #endif
1133 } while ((state->ret == -1) && (errno == EINTR));
1134
1135 if (state->ret == -1) {
1136 state->vfs_aio_state.error = errno;
1137 }
1138
1139 PROFILE_TIMESTAMP(&end_time);
1140
1141 state->vfs_aio_state.duration = nsec_time_diff(&end_time, &start_time);
1142
1143 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
1144 }
1145
1146 static int vfs_gluster_pwrite_state_destructor(struct vfs_gluster_pwrite_state *state)
1147 {
1148 return -1;
1149 }
1150
1151 static void vfs_gluster_pwrite_done(struct tevent_req *subreq)
1152 {
1153 struct tevent_req *req = tevent_req_callback_data(
1154 subreq, struct tevent_req);
1155 struct vfs_gluster_pwrite_state *state = tevent_req_data(
1156 req, struct vfs_gluster_pwrite_state);
1157 int ret;
1158
1159 ret = pthreadpool_tevent_job_recv(subreq);
1160 TALLOC_FREE(subreq);
1161 SMBPROFILE_BYTES_ASYNC_END(state->profile_bytes);
1162 talloc_set_destructor(state, NULL);
1163 if (ret != 0) {
1164 if (ret != EAGAIN) {
1165 tevent_req_error(req, ret);
1166 return;
1167 }
1168 /*
1169 * If we get EAGAIN from pthreadpool_tevent_job_recv() this
1170 * means the lower level pthreadpool failed to create a new
1171 * thread. Fallback to sync processing in that case to allow
1172 * some progress for the client.
1173 */
1174 vfs_gluster_pwrite_do(state);
1175 }
1176
1177 tevent_req_done(req);
1178 }
1179
1180 static ssize_t vfs_gluster_pwrite_recv(struct tevent_req *req,
1181 struct vfs_aio_state *vfs_aio_state)
1182 {
1183 struct vfs_gluster_pwrite_state *state = tevent_req_data(
1184 req, struct vfs_gluster_pwrite_state);
1185
1186 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
1187 return -1;
1188 }
1189
1190 *vfs_aio_state = state->vfs_aio_state;
1191
1192 return state->ret;
1193 }
1194
1195 static ssize_t vfs_gluster_pwrite(struct vfs_handle_struct *handle,
1196 files_struct *fsp, const void *data,
1197 size_t n, off_t offset)
1198 {
1199 ssize_t ret;
1200 glfs_fd_t *glfd = NULL;
1201
1202 START_PROFILE_BYTES(syscall_pwrite, n);
1203
1204 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1205 if (glfd == NULL) {
1206 END_PROFILE_BYTES(syscall_pwrite);
1207 DBG_ERR("Failed to fetch gluster fd\n");
1208 return -1;
1209 }
1210
1211 #ifdef HAVE_GFAPI_VER_7_6
1212 ret = glfs_pwrite(glfd, data, n, offset, 0, NULL, NULL);
1213 #else
1214 ret = glfs_pwrite(glfd, data, n, offset, 0);
1215 #endif
1216 END_PROFILE_BYTES(syscall_pwrite);
1217
1218 return ret;
1219 }
1220
1221 static off_t vfs_gluster_lseek(struct vfs_handle_struct *handle,
1222 files_struct *fsp, off_t offset, int whence)
1223 {
1224 off_t ret = 0;
1225 glfs_fd_t *glfd = NULL;
1226
1227 START_PROFILE(syscall_lseek);
1228
1229 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1230 if (glfd == NULL) {
1231 END_PROFILE(syscall_lseek);
1232 DBG_ERR("Failed to fetch gluster fd\n");
1233 return -1;
1234 }
1235
1236 ret = glfs_lseek(glfd, offset, whence);
1237 END_PROFILE(syscall_lseek);
1238
1239 return ret;
1240 }
1241
1242 static ssize_t vfs_gluster_sendfile(struct vfs_handle_struct *handle, int tofd,
1243 files_struct *fromfsp,
1244 const DATA_BLOB *hdr,
1245 off_t offset, size_t n)
1246 {
1247 errno = ENOTSUP;
1248 return -1;
1249 }
1250
1251 static ssize_t vfs_gluster_recvfile(struct vfs_handle_struct *handle,
1252 int fromfd, files_struct *tofsp,
1253 off_t offset, size_t n)
1254 {
1255 errno = ENOTSUP;
1256 return -1;
1257 }
1258
1259 static int vfs_gluster_renameat(struct vfs_handle_struct *handle,
1260 files_struct *srcfsp,
1261 const struct smb_filename *smb_fname_src,
1262 files_struct *dstfsp,
1263 const struct smb_filename *smb_fname_dst)
1264 {
1265 int ret;
1266
1267 #ifdef HAVE_GFAPI_VER_7_11
1268 glfs_fd_t *src_pglfd = NULL;
1269 glfs_fd_t *dst_pglfd = NULL;
1270
1271 START_PROFILE(syscall_renameat);
1272
1273 src_pglfd = vfs_gluster_fetch_glfd(handle, srcfsp);
1274 if (src_pglfd == NULL) {
1275 END_PROFILE(syscall_renameat);
1276 DBG_ERR("Failed to fetch gluster fd\n");
1277 return -1;
1278 }
1279
1280 dst_pglfd = vfs_gluster_fetch_glfd(handle, dstfsp);
1281 if (dst_pglfd == NULL) {
1282 END_PROFILE(syscall_renameat);
1283 DBG_ERR("Failed to fetch gluster fd\n");
1284 return -1;
1285 }
1286
1287 ret = glfs_renameat(src_pglfd, smb_fname_src->base_name,
1288 dst_pglfd, smb_fname_dst->base_name);
1289 #else
1290 struct smb_filename *full_fname_src = NULL;
1291 struct smb_filename *full_fname_dst = NULL;
1292
1293 START_PROFILE(syscall_renameat);
1294
1295 full_fname_src = full_path_from_dirfsp_atname(talloc_tos(),
1296 srcfsp,
1297 smb_fname_src);
1298 if (full_fname_src == NULL) {
1299 END_PROFILE(syscall_renameat);
1300 errno = ENOMEM;
1301 return -1;
1302 }
1303
1304 full_fname_dst = full_path_from_dirfsp_atname(talloc_tos(),
1305 dstfsp,
1306 smb_fname_dst);
1307 if (full_fname_dst == NULL) {
1308 END_PROFILE(syscall_renameat);
1309 TALLOC_FREE(full_fname_src);
1310 errno = ENOMEM;
1311 return -1;
1312 }
1313 ret = glfs_rename(handle->data,
1314 full_fname_src->base_name,
1315 full_fname_dst->base_name);
1316
1317 TALLOC_FREE(full_fname_src);
1318 TALLOC_FREE(full_fname_dst);
1319 #endif
1320
1321 END_PROFILE(syscall_renameat);
1322
1323 return ret;
1324 }
1325
1326 struct vfs_gluster_fsync_state {
1327 ssize_t ret;
1328 glfs_fd_t *fd;
1329
1330 struct vfs_aio_state vfs_aio_state;
1331 SMBPROFILE_BYTES_ASYNC_STATE(profile_bytes);
1332 };
1333
1334 static void vfs_gluster_fsync_do(void *private_data);
1335 static void vfs_gluster_fsync_done(struct tevent_req *subreq);
1336 static int vfs_gluster_fsync_state_destructor(struct vfs_gluster_fsync_state *state);
1337
1338 static struct tevent_req *vfs_gluster_fsync_send(struct vfs_handle_struct
1339 *handle, TALLOC_CTX *mem_ctx,
1340 struct tevent_context *ev,
1341 files_struct *fsp)
1342 {
1343 struct tevent_req *req, *subreq;
1344 struct vfs_gluster_fsync_state *state;
1345
1346 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
1347 if (glfd == NULL) {
1348 DBG_ERR("Failed to fetch gluster fd\n");
1349 return NULL;
1350 }
1351
1352 req = tevent_req_create(mem_ctx, &state, struct vfs_gluster_fsync_state);
1353 if (req == NULL) {
1354 return NULL;
1355 }
1356
1357 state->ret = -1;
1358 state->fd = glfd;
1359
1360 SMBPROFILE_BYTES_ASYNC_START(syscall_asys_fsync, profile_p,
1361 state->profile_bytes, 0);
1362 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
1363
1364 subreq = pthreadpool_tevent_job_send(
1365 state, ev, handle->conn->sconn->pool, vfs_gluster_fsync_do, state);
1366 if (tevent_req_nomem(subreq, req)) {
1367 return tevent_req_post(req, ev);
1368 }
1369 tevent_req_set_callback(subreq, vfs_gluster_fsync_done, req);
1370
1371 talloc_set_destructor(state, vfs_gluster_fsync_state_destructor);
1372
1373 return req;
1374 }
1375
1376 static void vfs_gluster_fsync_do(void *private_data)
1377 {
1378 struct vfs_gluster_fsync_state *state = talloc_get_type_abort(
1379 private_data, struct vfs_gluster_fsync_state);
1380 struct timespec start_time;
1381 struct timespec end_time;
1382
1383 SMBPROFILE_BYTES_ASYNC_SET_BUSY(state->profile_bytes);
1384
1385 PROFILE_TIMESTAMP(&start_time);
1386
1387 do {
1388 #ifdef HAVE_GFAPI_VER_7_6
1389 state->ret = glfs_fsync(state->fd, NULL, NULL);
1390 #else
1391 state->ret = glfs_fsync(state->fd);
1392 #endif
1393 } while ((state->ret == -1) && (errno == EINTR));
1394
1395 if (state->ret == -1) {
1396 state->vfs_aio_state.error = errno;
1397 }
1398
1399 PROFILE_TIMESTAMP(&end_time);
1400
1401 state->vfs_aio_state.duration = nsec_time_diff(&end_time, &start_time);
1402
1403 SMBPROFILE_BYTES_ASYNC_SET_IDLE(state->profile_bytes);
1404 }
1405
1406 static int vfs_gluster_fsync_state_destructor(struct vfs_gluster_fsync_state *state)
1407 {
1408 return -1;
1409 }
1410
1411 static void vfs_gluster_fsync_done(struct tevent_req *subreq)
1412 {
1413 struct tevent_req *req = tevent_req_callback_data(
1414 subreq, struct tevent_req);
1415 struct vfs_gluster_fsync_state *state = tevent_req_data(
1416 req, struct vfs_gluster_fsync_state);
1417 int ret;
1418
1419 ret = pthreadpool_tevent_job_recv(subreq);
1420 TALLOC_FREE(subreq);
1421 SMBPROFILE_BYTES_ASYNC_END(state->profile_bytes);
1422 talloc_set_destructor(state, NULL);
1423 if (ret != 0) {
1424 if (ret != EAGAIN) {
1425 tevent_req_error(req, ret);
1426 return;
1427 }
1428 /*
1429 * If we get EAGAIN from pthreadpool_tevent_job_recv() this
1430 * means the lower level pthreadpool failed to create a new
1431 * thread. Fallback to sync processing in that case to allow
1432 * some progress for the client.
1433 */
1434 vfs_gluster_fsync_do(state);
1435 }
1436
1437 tevent_req_done(req);
1438 }
1439
1440 static int vfs_gluster_fsync_recv(struct tevent_req *req,
1441 struct vfs_aio_state *vfs_aio_state)
1442 {
1443 struct vfs_gluster_fsync_state *state = tevent_req_data(
1444 req, struct vfs_gluster_fsync_state);
1445
1446 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
1447 return -1;
1448 }
1449
1450 *vfs_aio_state = state->vfs_aio_state;
1451 return state->ret;
1452 }
1453
1454 static int vfs_gluster_stat(struct vfs_handle_struct *handle,
1455 struct smb_filename *smb_fname)
1456 {
1457 struct stat st;
1458 int ret;
1459
1460 START_PROFILE(syscall_stat);
1461 ret = glfs_stat(handle->data, smb_fname->base_name, &st);
1462 if (ret == 0) {
1463 smb_stat_ex_from_stat(&smb_fname->st, &st);
1464 }
1465 if (ret < 0 && errno != ENOENT) {
1466 DEBUG(0, ("glfs_stat(%s) failed: %s\n",
1467 smb_fname->base_name, strerror(errno)));
1468 }
1469 END_PROFILE(syscall_stat);
1470
1471 return ret;
1472 }
1473
1474 static int vfs_gluster_fstat(struct vfs_handle_struct *handle,
1475 files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1476 {
1477 struct stat st;
1478 int ret;
1479 glfs_fd_t *glfd = NULL;
1480
1481 START_PROFILE(syscall_fstat);
1482
1483 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1484 if (glfd == NULL) {
1485 END_PROFILE(syscall_fstat);
1486 DBG_ERR("Failed to fetch gluster fd\n");
1487 return -1;
1488 }
1489
1490 ret = glfs_fstat(glfd, &st);
1491 if (ret == 0) {
1492 smb_stat_ex_from_stat(sbuf, &st);
1493 }
1494 if (ret < 0) {
1495 DEBUG(0, ("glfs_fstat(%d) failed: %s\n",
1496 fsp_get_io_fd(fsp), strerror(errno)));
1497 }
1498 END_PROFILE(syscall_fstat);
1499
1500 return ret;
1501 }
1502
1503 static int vfs_gluster_fstatat(struct vfs_handle_struct *handle,
1504 const struct files_struct *dirfsp,
1505 const struct smb_filename *smb_fname,
1506 SMB_STRUCT_STAT *sbuf,
1507 int flags)
1508 {
1509 struct stat st;
1510 int ret;
1511
1512 #ifdef HAVE_GFAPI_VER_7_11
1513 glfs_fd_t *pglfd = NULL;
1514
1515 START_PROFILE(syscall_fstatat);
1516
1517 pglfd = vfs_gluster_fetch_glfd(handle, dirfsp);
1518 if (pglfd == NULL) {
1519 END_PROFILE(syscall_fstatat);
1520 DBG_ERR("Failed to fetch gluster fd\n");
1521 return -1;
1522 }
1523
1524 ret = glfs_fstatat(pglfd, smb_fname->base_name, &st, flags);
1525 #else
1526 struct smb_filename *full_fname = NULL;
1527
1528 START_PROFILE(syscall_fstatat);
1529
1530 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1531 dirfsp,
1532 smb_fname);
1533 if (full_fname == NULL) {
1534 END_PROFILE(syscall_fstatat);
1535 return -1;
1536 }
1537
1538 ret = glfs_stat(handle->data, full_fname->base_name, &st);
1539
1540 TALLOC_FREE(full_fname->base_name);
1541 #endif
1542
1543 if (ret == 0) {
1544 smb_stat_ex_from_stat(sbuf, &st);
1545 }
1546
1547 END_PROFILE(syscall_fstatat);
1548
1549 return ret;
1550 }
1551
1552 static int vfs_gluster_lstat(struct vfs_handle_struct *handle,
1553 struct smb_filename *smb_fname)
1554 {
1555 struct stat st;
1556 int ret;
1557
1558 START_PROFILE(syscall_lstat);
1559 ret = glfs_lstat(handle->data, smb_fname->base_name, &st);
1560 if (ret == 0) {
1561 smb_stat_ex_from_stat(&smb_fname->st, &st);
1562 }
1563 if (ret < 0 && errno != ENOENT) {
1564 DEBUG(0, ("glfs_lstat(%s) failed: %s\n",
1565 smb_fname->base_name, strerror(errno)));
1566 }
1567 END_PROFILE(syscall_lstat);
1568
1569 return ret;
1570 }
1571
1572 static uint64_t vfs_gluster_get_alloc_size(struct vfs_handle_struct *handle,
1573 files_struct *fsp,
1574 const SMB_STRUCT_STAT *sbuf)
1575 {
1576 uint64_t ret;
1577
1578 START_PROFILE(syscall_get_alloc_size);
1579 ret = sbuf->st_ex_blocks * 512;
1580 END_PROFILE(syscall_get_alloc_size);
1581
1582 return ret;
1583 }
1584
1585 static int vfs_gluster_unlinkat(struct vfs_handle_struct *handle,
1586 struct files_struct *dirfsp,
1587 const struct smb_filename *smb_fname,
1588 int flags)
1589 {
1590 int ret;
1591
1592 #ifdef HAVE_GFAPI_VER_7_11
1593 glfs_fd_t *pglfd = NULL;
1594
1595 START_PROFILE(syscall_unlinkat);
1596
1597 pglfd = vfs_gluster_fetch_glfd(handle, dirfsp);
1598 if (pglfd == NULL) {
1599 END_PROFILE(syscall_unlinkat);
1600 DBG_ERR("Failed to fetch gluster fd\n");
1601 return -1;
1602 }
1603
1604 ret = glfs_unlinkat(pglfd, smb_fname->base_name, flags);
1605 #else
1606 struct smb_filename *full_fname = NULL;
1607
1608 START_PROFILE(syscall_unlinkat);
1609
1610 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
1611 dirfsp,
1612 smb_fname);
1613 if (full_fname == NULL) {
1614 END_PROFILE(syscall_unlinkat);
1615 return -1;
1616 }
1617
1618 if (flags & AT_REMOVEDIR) {
1619 ret = glfs_rmdir(handle->data, full_fname->base_name);
1620 } else {
1621 ret = glfs_unlink(handle->data, full_fname->base_name);
1622 }
1623
1624 TALLOC_FREE(full_fname);
1625 #endif
1626
1627 END_PROFILE(syscall_unlinkat);
1628
1629 return ret;
1630 }
1631
1632 static int vfs_gluster_fchmod(struct vfs_handle_struct *handle,
1633 files_struct *fsp, mode_t mode)
1634 {
1635 int ret;
1636 glfs_fd_t *glfd = NULL;
1637
1638 START_PROFILE(syscall_fchmod);
1639
1640 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1641 if (glfd == NULL) {
1642 END_PROFILE(syscall_fchmod);
1643 DBG_ERR("Failed to fetch gluster fd\n");
1644 return -1;
1645 }
1646
1647 if (!fsp->fsp_flags.is_pathref) {
1648 /*
1649 * We can use an io_fd to remove xattrs.
1650 */
1651 ret = glfs_fchmod(glfd, mode);
1652 } else {
1653 /*
1654 * This is no longer a handle based call.
1655 */
1656 ret = glfs_chmod(handle->data, fsp->fsp_name->base_name, mode);
1657 }
1658 END_PROFILE(syscall_fchmod);
1659
1660 return ret;
1661 }
1662
1663 static int vfs_gluster_fchown(struct vfs_handle_struct *handle,
1664 files_struct *fsp, uid_t uid, gid_t gid)
1665 {
1666 int ret;
1667 glfs_fd_t *glfd = NULL;
1668
1669 START_PROFILE(syscall_fchown);
1670
1671 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1672 if (glfd == NULL) {
1673 END_PROFILE(syscall_fchown);
1674 DBG_ERR("Failed to fetch gluster fd\n");
1675 return -1;
1676 }
1677
1678 ret = glfs_fchown(glfd, uid, gid);
1679 END_PROFILE(syscall_fchown);
1680
1681 return ret;
1682 }
1683
1684 static int vfs_gluster_lchown(struct vfs_handle_struct *handle,
1685 const struct smb_filename *smb_fname,
1686 uid_t uid,
1687 gid_t gid)
1688 {
1689 int ret;
1690
1691 START_PROFILE(syscall_lchown);
1692 ret = glfs_lchown(handle->data, smb_fname->base_name, uid, gid);
1693 END_PROFILE(syscall_lchown);
1694
1695 return ret;
1696 }
1697
1698 static int vfs_gluster_chdir(struct vfs_handle_struct *handle,
1699 const struct smb_filename *smb_fname)
1700 {
1701 int ret;
1702
1703 START_PROFILE(syscall_chdir);
1704 ret = glfs_chdir(handle->data, smb_fname->base_name);
1705 END_PROFILE(syscall_chdir);
1706
1707 return ret;
1708 }
1709
1710 static struct smb_filename *vfs_gluster_getwd(struct vfs_handle_struct *handle,
1711 TALLOC_CTX *ctx)
1712 {
1713 char cwd[PATH_MAX] = { '\0' };
1714 char *ret;
1715 struct smb_filename *smb_fname = NULL;
1716
1717 START_PROFILE(syscall_getwd);
1718
1719 ret = glfs_getcwd(handle->data, cwd, PATH_MAX - 1);
1720 END_PROFILE(syscall_getwd);
1721
1722 if (ret == NULL) {
1723 return NULL;
1724 }
1725 smb_fname = synthetic_smb_fname(ctx,
1726 ret,
1727 NULL,
1728 NULL,
1729 0,
1730 0);
1731 return smb_fname;
1732 }
1733
1734 static int vfs_gluster_fntimes(struct vfs_handle_struct *handle,
1735 files_struct *fsp,
1736 struct smb_file_time *ft)
1737 {
1738 int ret = -1;
1739 struct timespec times[2];
1740 glfs_fd_t *glfd = NULL;
1741
1742 START_PROFILE(syscall_fntimes);
1743
1744 if (is_omit_timespec(&ft->atime)) {
1745 times[0].tv_sec = fsp->fsp_name->st.st_ex_atime.tv_sec;
1746 times[0].tv_nsec = fsp->fsp_name->st.st_ex_atime.tv_nsec;
1747 } else {
1748 times[0].tv_sec = ft->atime.tv_sec;
1749 times[0].tv_nsec = ft->atime.tv_nsec;
1750 }
1751
1752 if (is_omit_timespec(&ft->mtime)) {
1753 times[1].tv_sec = fsp->fsp_name->st.st_ex_mtime.tv_sec;
1754 times[1].tv_nsec = fsp->fsp_name->st.st_ex_mtime.tv_nsec;
1755 } else {
1756 times[1].tv_sec = ft->mtime.tv_sec;
1757 times[1].tv_nsec = ft->mtime.tv_nsec;
1758 }
1759
1760 if ((timespec_compare(&times[0],
1761 &fsp->fsp_name->st.st_ex_atime) == 0) &&
1762 (timespec_compare(&times[1],
1763 &fsp->fsp_name->st.st_ex_mtime) == 0)) {
1764 END_PROFILE(syscall_fntimes);
1765 return 0;
1766 }
1767
1768 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1769 if (glfd == NULL) {
1770 END_PROFILE(syscall_fntimes);
1771 DBG_ERR("Failed to fetch gluster fd\n");
1772 return -1;
1773 }
1774
1775 if (!fsp->fsp_flags.is_pathref) {
1776 ret = glfs_futimens(glfd, times);
1777 } else {
1778 ret = glfs_utimens(handle->data,
1779 fsp->fsp_name->base_name,
1780 times);
1781 }
1782 END_PROFILE(syscall_fntimes);
1783
1784 return ret;
1785 }
1786
1787 static int vfs_gluster_ftruncate(struct vfs_handle_struct *handle,
1788 files_struct *fsp, off_t offset)
1789 {
1790 int ret;
1791 glfs_fd_t *glfd = NULL;
1792
1793 START_PROFILE(syscall_ftruncate);
1794
1795 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1796 if (glfd == NULL) {
1797 END_PROFILE(syscall_ftruncate);
1798 DBG_ERR("Failed to fetch gluster fd\n");
1799 return -1;
1800 }
1801
1802 #ifdef HAVE_GFAPI_VER_7_6
1803 ret = glfs_ftruncate(glfd, offset, NULL, NULL);
1804 #else
1805 ret = glfs_ftruncate(glfd, offset);
1806 #endif
1807 END_PROFILE(syscall_ftruncate);
1808
1809 return ret;
1810 }
1811
1812 static int vfs_gluster_fallocate(struct vfs_handle_struct *handle,
1813 struct files_struct *fsp,
1814 uint32_t mode,
1815 off_t offset, off_t len)
1816 {
1817 int ret;
1818 #ifdef HAVE_GFAPI_VER_6
1819 glfs_fd_t *glfd = NULL;
1820 int keep_size, punch_hole;
1821
1822 START_PROFILE(syscall_fallocate);
1823
1824 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1825 if (glfd == NULL) {
1826 END_PROFILE(syscall_fallocate);
1827 DBG_ERR("Failed to fetch gluster fd\n");
1828 return -1;
1829 }
1830
1831 keep_size = mode & VFS_FALLOCATE_FL_KEEP_SIZE;
1832 punch_hole = mode & VFS_FALLOCATE_FL_PUNCH_HOLE;
1833
1834 mode &= ~(VFS_FALLOCATE_FL_KEEP_SIZE|VFS_FALLOCATE_FL_PUNCH_HOLE);
1835 if (mode != 0) {
1836 END_PROFILE(syscall_fallocate);
1837 errno = ENOTSUP;
1838 return -1;
1839 }
1840
1841 if (punch_hole) {
1842 ret = glfs_discard(glfd, offset, len);
1843 if (ret != 0) {
1844 DBG_DEBUG("glfs_discard failed: %s\n",
1845 strerror(errno));
1846 }
1847 }
1848
1849 ret = glfs_fallocate(glfd, keep_size, offset, len);
1850 END_PROFILE(syscall_fallocate);
1851 #else
1852 errno = ENOTSUP;
1853 ret = -1;
1854 #endif
1855 return ret;
1856 }
1857
1858 static struct smb_filename *vfs_gluster_realpath(struct vfs_handle_struct *handle,
1859 TALLOC_CTX *ctx,
1860 const struct smb_filename *smb_fname)
1861 {
1862 char *result = NULL;
1863 struct smb_filename *result_fname = NULL;
1864 char *resolved_path = NULL;
1865
1866 START_PROFILE(syscall_realpath);
1867
1868 resolved_path = SMB_MALLOC_ARRAY(char, PATH_MAX+1);
1869 if (resolved_path == NULL) {
1870 END_PROFILE(syscall_realpath);
1871 errno = ENOMEM;
1872 return NULL;
1873 }
1874
1875 result = glfs_realpath(handle->data,
1876 smb_fname->base_name,
1877 resolved_path);
1878 if (result != NULL) {
1879 result_fname = synthetic_smb_fname(ctx,
1880 result,
1881 NULL,
1882 NULL,
1883 0,
1884 0);
1885 }
1886
1887 SAFE_FREE(resolved_path);
1888 END_PROFILE(syscall_realpath);
1889
1890 return result_fname;
1891 }
1892
1893 static bool vfs_gluster_lock(struct vfs_handle_struct *handle,
1894 files_struct *fsp, int op, off_t offset,
1895 off_t count, int type)
1896 {
1897 struct flock flock = { 0, };
1898 int ret;
1899 glfs_fd_t *glfd = NULL;
1900 bool ok = false;
1901
1902 START_PROFILE(syscall_fcntl_lock);
1903
1904 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1905 if (glfd == NULL) {
1906 DBG_ERR("Failed to fetch gluster fd\n");
1907 ok = false;
1908 goto out;
1909 }
1910
1911 flock.l_type = type;
1912 flock.l_whence = SEEK_SET;
1913 flock.l_start = offset;
1914 flock.l_len = count;
1915 flock.l_pid = 0;
1916
1917 ret = glfs_posix_lock(glfd, op, &flock);
1918
1919 if (op == F_GETLK) {
1920 /* lock query, true if someone else has locked */
1921 if ((ret != -1) &&
1922 (flock.l_type != F_UNLCK) &&
1923 (flock.l_pid != 0) && (flock.l_pid != getpid())) {
1924 ok = true;
1925 goto out;
1926 }
1927 /* not me */
1928 ok = false;
1929 goto out;
1930 }
1931
1932 if (ret == -1) {
1933 ok = false;
1934 goto out;
1935 }
1936
1937 ok = true;
1938 out:
1939 END_PROFILE(syscall_fcntl_lock);
1940
1941 return ok;
1942 }
1943
1944 static int vfs_gluster_filesystem_sharemode(struct vfs_handle_struct *handle,
1945 files_struct *fsp,
1946 uint32_t share_access,
1947 uint32_t access_mask)
1948 {
1949 errno = ENOSYS;
1950 return -1;
1951 }
1952
1953 static int vfs_gluster_fcntl(vfs_handle_struct *handle,
1954 files_struct *fsp, int cmd, va_list cmd_arg)
1955 {
1956 /*
1957 * SMB_VFS_FCNTL() is currently only called by vfs_set_blocking() to
1958 * clear O_NONBLOCK, etc for LOCK_MAND and FIFOs. Ignore it.
1959 */
1960 if (cmd == F_GETFL) {
1961 return 0;
1962 } else if (cmd == F_SETFL) {
1963 va_list dup_cmd_arg;
1964 int opt;
1965
1966 va_copy(dup_cmd_arg, cmd_arg);
1967 opt = va_arg(dup_cmd_arg, int);
1968 va_end(dup_cmd_arg);
1969 if (opt == 0) {
1970 return 0;
1971 }
1972 DBG_ERR("unexpected fcntl SETFL(%d)\n", opt);
1973 goto err_out;
1974 }
1975 DBG_ERR("unexpected fcntl: %d\n", cmd);
1976 err_out:
1977 errno = EINVAL;
1978 return -1;
1979 }
1980
1981 static int vfs_gluster_linux_setlease(struct vfs_handle_struct *handle,
1982 files_struct *fsp, int leasetype)
1983 {
1984 errno = ENOSYS;
1985 return -1;
1986 }
1987
1988 static bool vfs_gluster_getlock(struct vfs_handle_struct *handle,
1989 files_struct *fsp, off_t *poffset,
1990 off_t *pcount, int *ptype, pid_t *ppid)
1991 {
1992 struct flock flock = { 0, };
1993 int ret;
1994 glfs_fd_t *glfd = NULL;
1995
1996 START_PROFILE(syscall_fcntl_getlock);
1997
1998 glfd = vfs_gluster_fetch_glfd(handle, fsp);
1999 if (glfd == NULL) {
2000 END_PROFILE(syscall_fcntl_getlock);
2001 DBG_ERR("Failed to fetch gluster fd\n");
2002 return false;
2003 }
2004
2005 flock.l_type = *ptype;
2006 flock.l_whence = SEEK_SET;
2007 flock.l_start = *poffset;
2008 flock.l_len = *pcount;
2009 flock.l_pid = 0;
2010
2011 ret = glfs_posix_lock(glfd, F_GETLK, &flock);
2012
2013 if (ret == -1) {
2014 END_PROFILE(syscall_fcntl_getlock);
2015 return false;
2016 }
2017
2018 *ptype = flock.l_type;
2019 *poffset = flock.l_start;
2020 *pcount = flock.l_len;
2021 *ppid = flock.l_pid;
2022 END_PROFILE(syscall_fcntl_getlock);
2023
2024 return true;
2025 }
2026
2027 static int vfs_gluster_symlinkat(struct vfs_handle_struct *handle,
2028 const struct smb_filename *link_target,
2029 struct files_struct *dirfsp,
2030 const struct smb_filename *new_smb_fname)
2031 {
2032 int ret;
2033
2034 #ifdef HAVE_GFAPI_VER_7_11
2035 glfs_fd_t *pglfd = NULL;
2036
2037 START_PROFILE(syscall_symlinkat);
2038
2039 pglfd = vfs_gluster_fetch_glfd(handle, dirfsp);
2040 if (pglfd == NULL) {
2041 END_PROFILE(syscall_symlinkat);
2042 DBG_ERR("Failed to fetch gluster fd\n");
2043 return -1;
2044 }
2045
2046 ret = glfs_symlinkat(link_target->base_name,
2047 pglfd,
2048 new_smb_fname->base_name);
2049 #else
2050 struct smb_filename *full_fname = NULL;
2051
2052 START_PROFILE(syscall_symlinkat);
2053
2054 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
2055 dirfsp,
2056 new_smb_fname);
2057 if (full_fname == NULL) {
2058 END_PROFILE(syscall_symlinkat);
2059 return -1;
2060 }
2061
2062 ret = glfs_symlink(handle->data,
2063 link_target->base_name,
2064 full_fname->base_name);
2065
2066 TALLOC_FREE(full_fname);
2067 #endif
2068
2069 END_PROFILE(syscall_symlinkat);
2070
2071 return ret;
2072 }
2073
2074 static int vfs_gluster_readlinkat(struct vfs_handle_struct *handle,
2075 const struct files_struct *dirfsp,
2076 const struct smb_filename *smb_fname,
2077 char *buf,
2078 size_t bufsiz)
2079 {
2080 int ret;
2081
2082 #ifdef HAVE_GFAPI_VER_7_11
2083 glfs_fd_t *pglfd = NULL;
2084
2085 START_PROFILE(syscall_readlinkat);
2086
2087 pglfd = vfs_gluster_fetch_glfd(handle, dirfsp);
2088 if (pglfd == NULL) {
2089 END_PROFILE(syscall_readlinkat);
2090 DBG_ERR("Failed to fetch gluster fd\n");
2091 return -1;
2092 }
2093
2094 ret = glfs_readlinkat(pglfd, smb_fname->base_name, buf, bufsiz);
2095 #else
2096 struct smb_filename *full_fname = NULL;
2097
2098 START_PROFILE(syscall_readlinkat);
2099
2100 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
2101 dirfsp,
2102 smb_fname);
2103 if (full_fname == NULL) {
2104 END_PROFILE(syscall_readlinkat);
2105 return -1;
2106 }
2107
2108 ret = glfs_readlink(handle->data, full_fname->base_name, buf, bufsiz);
2109
2110 TALLOC_FREE(full_fname);
2111 #endif
2112
2113 END_PROFILE(syscall_readlinkat);
2114
2115 return ret;
2116 }
2117
2118 static int vfs_gluster_linkat(struct vfs_handle_struct *handle,
2119 files_struct *srcfsp,
2120 const struct smb_filename *old_smb_fname,
2121 files_struct *dstfsp,
2122 const struct smb_filename *new_smb_fname,
2123 int flags)
2124 {
2125 int ret;
2126
2127 #ifdef HAVE_GFAPI_VER_7_11
2128 glfs_fd_t *src_pglfd = NULL;
2129 glfs_fd_t *dst_pglfd = NULL;
2130
2131 START_PROFILE(syscall_linkat);
2132
2133 src_pglfd = vfs_gluster_fetch_glfd(handle, srcfsp);
2134 if (src_pglfd == NULL) {
2135 END_PROFILE(syscall_linkat);
2136 DBG_ERR("Failed to fetch gluster fd\n");
2137 return -1;
2138 }
2139
2140 dst_pglfd = vfs_gluster_fetch_glfd(handle, dstfsp);
2141 if (dst_pglfd == NULL) {
2142 END_PROFILE(syscall_linkat);
2143 DBG_ERR("Failed to fetch gluster fd\n");
2144 return -1;
2145 }
2146
2147 ret = glfs_linkat(src_pglfd,
2148 old_smb_fname->base_name,
2149 dst_pglfd,
2150 new_smb_fname->base_name,
2151 flags);
2152 #else
2153 struct smb_filename *full_fname_old = NULL;
2154 struct smb_filename *full_fname_new = NULL;
2155
2156 START_PROFILE(syscall_linkat);
2157
2158 full_fname_old = full_path_from_dirfsp_atname(talloc_tos(),
2159 srcfsp,
2160 old_smb_fname);
2161 if (full_fname_old == NULL) {
2162 END_PROFILE(syscall_linkat);
2163 return -1;
2164 }
2165
2166 full_fname_new = full_path_from_dirfsp_atname(talloc_tos(),
2167 dstfsp,
2168 new_smb_fname);
2169 if (full_fname_new == NULL) {
2170 END_PROFILE(syscall_linkat);
2171 TALLOC_FREE(full_fname_old);
2172 return -1;
2173 }
2174
2175 ret = glfs_link(handle->data,
2176 full_fname_old->base_name,
2177 full_fname_new->base_name);
2178
2179 TALLOC_FREE(full_fname_old);
2180 TALLOC_FREE(full_fname_new);
2181 #endif
2182
2183 END_PROFILE(syscall_linkat);
2184
2185 return ret;
2186 }
2187
2188 static int vfs_gluster_mknodat(struct vfs_handle_struct *handle,
2189 files_struct *dirfsp,
2190 const struct smb_filename *smb_fname,
2191 mode_t mode,
2192 SMB_DEV_T dev)
2193 {
2194 int ret;
2195
2196 #ifdef HAVE_GFAPI_VER_7_11
2197 glfs_fd_t *pglfd = NULL;
2198
2199 START_PROFILE(syscall_mknodat);
2200
2201 pglfd = vfs_gluster_fetch_glfd(handle, dirfsp);
2202 if (pglfd == NULL) {
2203 END_PROFILE(syscall_mknodat);
2204 DBG_ERR("Failed to fetch gluster fd\n");
2205 return -1;
2206 }
2207
2208 ret = glfs_mknodat(pglfd, smb_fname->base_name, mode, dev);
2209 #else
2210 struct smb_filename *full_fname = NULL;
2211
2212 START_PROFILE(syscall_mknodat);
2213
2214 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
2215 dirfsp,
2216 smb_fname);
2217 if (full_fname == NULL) {
2218 END_PROFILE(syscall_mknodat);
2219 return -1;
2220 }
2221
2222 ret = glfs_mknod(handle->data, full_fname->base_name, mode, dev);
2223
2224 TALLOC_FREE(full_fname);
2225 #endif
2226
2227 END_PROFILE(syscall_mknodat);
2228
2229 return ret;
2230 }
2231
2232 static int vfs_gluster_fchflags(struct vfs_handle_struct *handle,
2233 struct files_struct *fsp,
2234 unsigned int flags)
2235 {
2236 errno = ENOSYS;
2237 return -1;
2238 }
2239
2240 static NTSTATUS vfs_gluster_get_real_filename_at(
2241 struct vfs_handle_struct *handle,
2242 struct files_struct *dirfsp,
2243 const char *name,
2244 TALLOC_CTX *mem_ctx,
2245 char **found_name)
2246 {
2247 int ret;
2248 char key_buf[GLUSTER_NAME_MAX + 64];
2249 char val_buf[GLUSTER_NAME_MAX + 1];
2250
2251 if (strlen(name) >= GLUSTER_NAME_MAX) {
2252 return NT_STATUS_OBJECT_NAME_INVALID;
2253 }
2254
2255 snprintf(key_buf, GLUSTER_NAME_MAX + 64,
2256 "glusterfs.get_real_filename:%s", name);
2257
2258 ret = glfs_getxattr(handle->data,
2259 dirfsp->fsp_name->base_name,
2260 key_buf,
2261 val_buf,
2262 GLUSTER_NAME_MAX + 1);
2263 if (ret == -1) {
2264 if (errno == ENOATTR) {
2265 errno = ENOENT;
2266 }
2267 return map_nt_error_from_unix(errno);
2268 }
2269
2270 *found_name = talloc_strdup(mem_ctx, val_buf);
2271 if (found_name[0] == NULL) {
2272 return NT_STATUS_NO_MEMORY;
2273 }
2274
2275 return NT_STATUS_OK;
2276 }
2277
2278 static const char *vfs_gluster_connectpath(
2279 struct vfs_handle_struct *handle,
2280 const struct files_struct *dirfsp,
2281 const struct smb_filename *smb_fname)
2282 {
2283 return handle->conn->connectpath;
2284 }
2285
2286 /* EA Operations */
2287
2288 static ssize_t vfs_gluster_fgetxattr(struct vfs_handle_struct *handle,
2289 files_struct *fsp, const char *name,
2290 void *value, size_t size)
2291 {
2292 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
2293 if (glfd == NULL) {
2294 DBG_ERR("Failed to fetch gluster fd\n");
2295 return -1;
2296 }
2297
2298 if (!fsp->fsp_flags.is_pathref) {
2299 /*
2300 * We can use an io_fd to retrieve xattr value.
2301 */
2302 return glfs_fgetxattr(glfd, name, value, size);
2303 }
2304
2305 /*
2306 * This is no longer a handle based call.
2307 */
2308 return glfs_getxattr(handle->data,
2309 fsp->fsp_name->base_name,
2310 name,
2311 value,
2312 size);
2313 }
2314
2315 static ssize_t vfs_gluster_flistxattr(struct vfs_handle_struct *handle,
2316 files_struct *fsp, char *list,
2317 size_t size)
2318 {
2319 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
2320 if (glfd == NULL) {
2321 DBG_ERR("Failed to fetch gluster fd\n");
2322 return -1;
2323 }
2324 if (!fsp->fsp_flags.is_pathref) {
2325 /*
2326 * We can use an io_fd to list xattrs.
2327 */
2328 return glfs_flistxattr(glfd, list, size);
2329 } else {
2330 /*
2331 * This is no longer a handle based call.
2332 */
2333 return glfs_listxattr(handle->data,
2334 fsp->fsp_name->base_name,
2335 list,
2336 size);
2337 }
2338 }
2339
2340 static int vfs_gluster_fremovexattr(struct vfs_handle_struct *handle,
2341 files_struct *fsp, const char *name)
2342 {
2343 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
2344 if (glfd == NULL) {
2345 DBG_ERR("Failed to fetch gluster fd\n");
2346 return -1;
2347 }
2348 if (!fsp->fsp_flags.is_pathref) {
2349 /*
2350 * We can use an io_fd to remove xattrs.
2351 */
2352 return glfs_fremovexattr(glfd, name);
2353 } else {
2354 /*
2355 * This is no longer a handle based call.
2356 */
2357 return glfs_removexattr(handle->data,
2358 fsp->fsp_name->base_name,
2359 name);
2360 }
2361 }
2362
2363 static int vfs_gluster_fsetxattr(struct vfs_handle_struct *handle,
2364 files_struct *fsp, const char *name,
2365 const void *value, size_t size, int flags)
2366 {
2367 glfs_fd_t *glfd = vfs_gluster_fetch_glfd(handle, fsp);
2368 if (glfd == NULL) {
2369 DBG_ERR("Failed to fetch gluster fd\n");
2370 return -1;
2371 }
2372
2373 if (!fsp->fsp_flags.is_pathref) {
2374 /*
2375 * We can use an io_fd to set xattrs.
2376 */
2377 return glfs_fsetxattr(glfd, name, value, size, flags);
2378 } else {
2379 /*
2380 * This is no longer a handle based call.
2381 */
2382 return glfs_setxattr(handle->data,
2383 fsp->fsp_name->base_name,
2384 name,
2385 value,
2386 size,
2387 flags);
2388 }
2389 }
2390
2391 /* AIO Operations */
2392
2393 static bool vfs_gluster_aio_force(struct vfs_handle_struct *handle,
2394 files_struct *fsp)
2395 {
2396 return false;
2397 }
2398
2399 static NTSTATUS vfs_gluster_create_dfs_pathat(struct vfs_handle_struct *handle,
2400 struct files_struct *dirfsp,
2401 const struct smb_filename *smb_fname,
2402 const struct referral *reflist,
2403 size_t referral_count)
2404 {
2405 TALLOC_CTX *frame = talloc_stackframe();
2406 NTSTATUS status = NT_STATUS_NO_MEMORY;
2407 int ret;
2408 char *msdfs_link = NULL;
2409 #ifdef HAVE_GFAPI_VER_7_11
2410 glfs_fd_t *pglfd = NULL;
2411 #else
2412 struct smb_filename *full_fname = NULL;
2413 #endif
2414
2415 /* Form the msdfs_link contents */
2416 msdfs_link = msdfs_link_string(frame,
2417 reflist,
2418 referral_count);
2419 if (msdfs_link == NULL) {
2420 goto out;
2421 }
2422
2423 #ifdef HAVE_GFAPI_VER_7_11
2424 pglfd = vfs_gluster_fetch_glfd(handle, dirfsp);
2425 if (pglfd == NULL) {
2426 DBG_ERR("Failed to fetch gluster fd\n");
2427 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
2428 goto out;
2429 }
2430
2431 ret = glfs_symlinkat(msdfs_link, pglfd, smb_fname->base_name);
2432 #else
2433 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
2434 dirfsp,
2435 smb_fname);
2436 if (full_fname == NULL) {
2437 goto out;
2438 }
2439
2440 ret = glfs_symlink(handle->data, msdfs_link, full_fname->base_name);
2441
2442 TALLOC_FREE(full_fname);
2443 #endif
2444 if (ret == 0) {
2445 status = NT_STATUS_OK;
2446 } else {
2447 status = map_nt_error_from_unix(errno);
2448 }
2449
2450 out:
2451
2452 TALLOC_FREE(frame);
2453 return status;
2454 }
2455
2456 /*
2457 * Read and return the contents of a DFS redirect given a
2458 * pathname. A caller can pass in NULL for ppreflist and
2459 * preferral_count but still determine if this was a
2460 * DFS redirect point by getting NT_STATUS_OK back
2461 * without incurring the overhead of reading and parsing
2462 * the referral contents.
2463 */
2464
2465 static NTSTATUS vfs_gluster_read_dfs_pathat(struct vfs_handle_struct *handle,
2466 TALLOC_CTX *mem_ctx,
2467 struct files_struct *dirfsp,
2468 struct smb_filename *smb_fname,
2469 struct referral **ppreflist,
2470 size_t *preferral_count)
2471 {
2472 NTSTATUS status = NT_STATUS_NO_MEMORY;
2473 size_t bufsize;
2474 char *link_target = NULL;
2475 int referral_len;
2476 bool ok;
2477 #if defined(HAVE_BROKEN_READLINK)
2478 char link_target_buf[PATH_MAX];
2479 #else
2480 char link_target_buf[7];
2481 #endif
2482 struct stat st;
2483 struct smb_filename *full_fname = NULL;
2484 int ret;
2485 #ifdef HAVE_GFAPI_VER_7_11
2486 glfs_fd_t *pglfd = NULL;
2487 #endif
2488
2489 if (is_named_stream(smb_fname)) {
2490 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
2491 goto err;
2492 }
2493
2494 if (ppreflist == NULL && preferral_count == NULL) {
2495 /*
2496 * We're only checking if this is a DFS
2497 * redirect. We don't need to return data.
2498 */
2499 bufsize = sizeof(link_target_buf);
2500 link_target = link_target_buf;
2501 } else {
2502 bufsize = PATH_MAX;
2503 link_target = talloc_array(mem_ctx, char, bufsize);
2504 if (!link_target) {
2505 goto err;
2506 }
2507 }
2508
2509 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
2510 dirfsp,
2511 smb_fname);
2512 if (full_fname == NULL) {
2513 status = NT_STATUS_NO_MEMORY;
2514 goto err;
2515 }
2516
2517 ret = glfs_lstat(handle->data, full_fname->base_name, &st);
2518 if (ret < 0) {
2519 status = map_nt_error_from_unix(errno);
2520 goto err;
2521 }
2522
2523 #ifdef HAVE_GFAPI_VER_7_11
2524 pglfd = vfs_gluster_fetch_glfd(handle, dirfsp);
2525 if (pglfd == NULL) {
2526 DBG_ERR("Failed to fetch gluster fd\n");
2527 return NT_STATUS_OBJECT_NAME_NOT_FOUND;
2528 }
2529
2530 referral_len = glfs_readlinkat(pglfd,
2531 smb_fname->base_name,
2532 link_target,
2533 bufsize - 1);
2534 #else
2535 referral_len = glfs_readlink(handle->data,
2536 full_fname->base_name,
2537 link_target,
2538 bufsize - 1);
2539 #endif
2540 if (referral_len < 0) {
2541 if (errno == EINVAL) {
2542 DBG_INFO("%s is not a link.\n", full_fname->base_name);
2543 status = NT_STATUS_OBJECT_TYPE_MISMATCH;
2544 } else {
2545 status = map_nt_error_from_unix(errno);
2546 DBG_ERR("Error reading "
2547 "msdfs link %s: %s\n",
2548 full_fname->base_name,
2549 strerror(errno));
2550 }
2551 goto err;
2552 }
2553 link_target[referral_len] = '\0';
2554
2555 DBG_INFO("%s -> %s\n",
2556 full_fname->base_name,
2557 link_target);
2558
2559 if (!strnequal(link_target, "msdfs:", 6)) {
2560 status = NT_STATUS_OBJECT_TYPE_MISMATCH;
2561 goto err;
2562 }
2563
2564 if (ppreflist == NULL && preferral_count == NULL) {
2565 /* Early return for checking if this is a DFS link. */
2566 TALLOC_FREE(full_fname);
2567 smb_stat_ex_from_stat(&smb_fname->st, &st);
2568 return NT_STATUS_OK;
2569 }
2570
2571 ok = parse_msdfs_symlink(mem_ctx,
2572 lp_msdfs_shuffle_referrals(SNUM(handle->conn)),
2573 link_target,
2574 ppreflist,
2575 preferral_count);
2576
2577 if (ok) {
2578 smb_stat_ex_from_stat(&smb_fname->st, &st);
2579 status = NT_STATUS_OK;
2580 } else {
2581 status = NT_STATUS_NO_MEMORY;
2582 }
2583
2584 err:
2585
2586 if (link_target != link_target_buf) {
2587 TALLOC_FREE(link_target);
2588 }
2589 TALLOC_FREE(full_fname);
2590 return status;
2591 }
2592
2593 static struct vfs_fn_pointers glusterfs_fns = {
2594
2595 /* Disk Operations */
2596
2597 .connect_fn = vfs_gluster_connect,
2598 .disconnect_fn = vfs_gluster_disconnect,
2599 .disk_free_fn = vfs_gluster_disk_free,
2600 .get_quota_fn = vfs_gluster_get_quota,
2601 .set_quota_fn = vfs_gluster_set_quota,
2602 .statvfs_fn = vfs_gluster_statvfs,
2603 .fs_capabilities_fn = vfs_gluster_fs_capabilities,
2604
2605 .get_dfs_referrals_fn = NULL,
2606
2607 /* Directory Operations */
2608
2609 .fdopendir_fn = vfs_gluster_fdopendir,
2610 .readdir_fn = vfs_gluster_readdir,
2611 .seekdir_fn = vfs_gluster_seekdir,
2612 .telldir_fn = vfs_gluster_telldir,
2613 .rewind_dir_fn = vfs_gluster_rewinddir,
2614 .mkdirat_fn = vfs_gluster_mkdirat,
2615 .closedir_fn = vfs_gluster_closedir,
2616
2617 /* File Operations */
2618
2619 .openat_fn = vfs_gluster_openat,
2620 .create_file_fn = NULL,
2621 .close_fn = vfs_gluster_close,
2622 .pread_fn = vfs_gluster_pread,
2623 .pread_send_fn = vfs_gluster_pread_send,
2624 .pread_recv_fn = vfs_gluster_pread_recv,
2625 .pwrite_fn = vfs_gluster_pwrite,
2626 .pwrite_send_fn = vfs_gluster_pwrite_send,
2627 .pwrite_recv_fn = vfs_gluster_pwrite_recv,
2628 .lseek_fn = vfs_gluster_lseek,
2629 .sendfile_fn = vfs_gluster_sendfile,
2630 .recvfile_fn = vfs_gluster_recvfile,
2631 .renameat_fn = vfs_gluster_renameat,
2632 .fsync_send_fn = vfs_gluster_fsync_send,
2633 .fsync_recv_fn = vfs_gluster_fsync_recv,
2634
2635 .stat_fn = vfs_gluster_stat,
2636 .fstat_fn = vfs_gluster_fstat,
2637 .fstatat_fn = vfs_gluster_fstatat,
2638 .lstat_fn = vfs_gluster_lstat,
2639 .get_alloc_size_fn = vfs_gluster_get_alloc_size,
2640 .unlinkat_fn = vfs_gluster_unlinkat,
2641
2642 .fchmod_fn = vfs_gluster_fchmod,
2643 .fchown_fn = vfs_gluster_fchown,
2644 .lchown_fn = vfs_gluster_lchown,
2645 .chdir_fn = vfs_gluster_chdir,
2646 .getwd_fn = vfs_gluster_getwd,
2647 .fntimes_fn = vfs_gluster_fntimes,
2648 .ftruncate_fn = vfs_gluster_ftruncate,
2649 .fallocate_fn = vfs_gluster_fallocate,
2650 .lock_fn = vfs_gluster_lock,
2651 .filesystem_sharemode_fn = vfs_gluster_filesystem_sharemode,
2652 .fcntl_fn = vfs_gluster_fcntl,
2653 .linux_setlease_fn = vfs_gluster_linux_setlease,
2654 .getlock_fn = vfs_gluster_getlock,
2655 .symlinkat_fn = vfs_gluster_symlinkat,
2656 .readlinkat_fn = vfs_gluster_readlinkat,
2657 .linkat_fn = vfs_gluster_linkat,
2658 .mknodat_fn = vfs_gluster_mknodat,
2659 .realpath_fn = vfs_gluster_realpath,
2660 .fchflags_fn = vfs_gluster_fchflags,
2661 .file_id_create_fn = NULL,
2662 .fstreaminfo_fn = NULL,
2663 .get_real_filename_at_fn = vfs_gluster_get_real_filename_at,
2664 .connectpath_fn = vfs_gluster_connectpath,
2665 .create_dfs_pathat_fn = vfs_gluster_create_dfs_pathat,
2666 .read_dfs_pathat_fn = vfs_gluster_read_dfs_pathat,
2667
2668 .brl_lock_windows_fn = NULL,
2669 .brl_unlock_windows_fn = NULL,
2670 .strict_lock_check_fn = NULL,
2671 .translate_name_fn = NULL,
2672 .fsctl_fn = NULL,
2673
2674 /* NT ACL Operations */
2675 .fget_nt_acl_fn = NULL,
2676 .fset_nt_acl_fn = NULL,
2677 .audit_file_fn = NULL,
2678
2679 /* Posix ACL Operations */
2680 .sys_acl_get_fd_fn = posixacl_xattr_acl_get_fd,
2681 .sys_acl_blob_get_fd_fn = posix_sys_acl_blob_get_fd,
2682 .sys_acl_set_fd_fn = posixacl_xattr_acl_set_fd,
2683 .sys_acl_delete_def_fd_fn = posixacl_xattr_acl_delete_def_fd,
2684
2685 /* EA Operations */
2686 .getxattrat_send_fn = vfs_not_implemented_getxattrat_send,
2687 .getxattrat_recv_fn = vfs_not_implemented_getxattrat_recv,
2688 .fgetxattr_fn = vfs_gluster_fgetxattr,
2689 .flistxattr_fn = vfs_gluster_flistxattr,
2690 .fremovexattr_fn = vfs_gluster_fremovexattr,
2691 .fsetxattr_fn = vfs_gluster_fsetxattr,
2692
2693 /* AIO Operations */
2694 .aio_force_fn = vfs_gluster_aio_force,
2695
2696 /* Durable handle Operations */
2697 .durable_cookie_fn = NULL,
2698 .durable_disconnect_fn = NULL,
2699 .durable_reconnect_fn = NULL,
2700 };
2701
2702 static_decl_vfs;
2703 NTSTATUS vfs_glusterfs_init(TALLOC_CTX *ctx)
2704 {
2705 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION,
2706 "glusterfs", &glusterfs_fns);
2707 }
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