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s4:selftest: explicitly set NSS/RESOLV_WAPPER_* in wait_for_start
[Samba.git] / source3 / modules / vfs_gpfs.c
bloba0fd48fab7cb3206e6be2a2b3f7e7f3c72df33d8
1 /*
2 * Unix SMB/CIFS implementation.
3 * Samba VFS module for GPFS filesystem
4 * Copyright (C) Christian Ambach <cambach1@de.ibm.com> 2006
5 * Copyright (C) Christof Schmitt 2015
6 * Major code contributions by Chetan Shringarpure <chetan.sh@in.ibm.com>
7 * and Gomati Mohanan <gomati.mohanan@in.ibm.com>
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 3 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, see <http://www.gnu.org/licenses/>.
21 */
22
23 #include "includes.h"
24 #include "smbd/smbd.h"
25 #include "include/smbprofile.h"
26 #include "modules/non_posix_acls.h"
27 #include "libcli/security/security.h"
28 #include "nfs4_acls.h"
29 #include "system/filesys.h"
30 #include "auth.h"
31 #include "lib/util/tevent_unix.h"
32 #include "lib/util/gpfswrap.h"
33
34 #undef DBGC_CLASS
35 #define DBGC_CLASS DBGC_VFS
36
37 #ifndef GPFS_GETACL_NATIVE
38 #define GPFS_GETACL_NATIVE 0x00000004
39 #endif
40
41 struct gpfs_config_data {
42 struct smbacl4_vfs_params nfs4_params;
43 bool sharemodes;
44 bool leases;
45 bool hsm;
46 bool syncio;
47 bool winattr;
48 bool ftruncate;
49 bool getrealfilename;
50 bool dfreequota;
51 bool prealloc;
52 bool acl;
53 bool settimes;
54 bool recalls;
55 };
56
57 struct gpfs_fsp_extension {
58 bool offline;
59 };
60
61 static inline unsigned int gpfs_acl_flags(gpfs_acl_t *gacl)
62 {
63 if (gacl->acl_level == GPFS_ACL_LEVEL_V4FLAGS) {
64 return gacl->v4Level1.acl_flags;
65 }
66 return 0;
67 }
68
69 static inline gpfs_ace_v4_t *gpfs_ace_ptr(gpfs_acl_t *gacl, unsigned int i)
70 {
71 if (gacl->acl_level == GPFS_ACL_LEVEL_V4FLAGS) {
72 return &gacl->v4Level1.ace_v4[i];
73 }
74 return &gacl->ace_v4[i];
75 }
76
77 static bool set_gpfs_sharemode(files_struct *fsp, uint32_t access_mask,
78 uint32_t share_access)
79 {
80 unsigned int allow = GPFS_SHARE_NONE;
81 unsigned int deny = GPFS_DENY_NONE;
82 int result;
83
84 if ((fsp == NULL) || (fsp->fh == NULL) || (fsp->fh->fd < 0)) {
85 /* No real file, don't disturb */
86 return True;
87 }
88
89 allow |= (access_mask & (FILE_WRITE_DATA|FILE_APPEND_DATA)) ?
90 GPFS_SHARE_WRITE : 0;
91 allow |= (access_mask & (FILE_READ_DATA|FILE_EXECUTE)) ?
92 GPFS_SHARE_READ : 0;
93
94 if (allow == GPFS_SHARE_NONE) {
95 DEBUG(10, ("special case am=no_access:%x\n",access_mask));
96 }
97 else {
98 deny |= (share_access & FILE_SHARE_WRITE) ?
99 0 : GPFS_DENY_WRITE;
100 deny |= (share_access & (FILE_SHARE_READ)) ?
101 0 : GPFS_DENY_READ;
102
103 /*
104 * GPFS_DENY_DELETE can only be set together with either
105 * GPFS_DENY_WRITE or GPFS_DENY_READ.
106 */
107 if (deny & (GPFS_DENY_WRITE|GPFS_DENY_READ)) {
108 deny |= (share_access & (FILE_SHARE_DELETE)) ?
109 0 : GPFS_DENY_DELETE;
110 }
111 }
112 DEBUG(10, ("am=%x, allow=%d, sa=%x, deny=%d\n",
113 access_mask, allow, share_access, deny));
114
115 result = gpfswrap_set_share(fsp->fh->fd, allow, deny);
116 if (result != 0) {
117 if (errno == ENOSYS) {
118 DEBUG(5, ("VFS module vfs_gpfs loaded, but gpfs "
119 "set_share function support not available. "
120 "Allowing access\n"));
121 return True;
122 } else {
123 DEBUG(10, ("gpfs_set_share failed: %s\n",
124 strerror(errno)));
125 }
126 }
127
128 return (result == 0);
129 }
130
131 static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
132 uint32_t share_mode, uint32_t access_mask)
133 {
134
135 struct gpfs_config_data *config;
136 int ret = 0;
137
138 START_PROFILE(syscall_kernel_flock);
139
140 SMB_VFS_HANDLE_GET_DATA(handle, config,
141 struct gpfs_config_data,
142 return -1);
143
144 if(!config->sharemodes) {
145 return 0;
146 }
147
148 /*
149 * A named stream fsp will have the basefile open in the fsp
150 * fd, so lacking a distinct fd for the stream we have to skip
151 * kernel_flock and set_gpfs_sharemode for stream.
152 */
153 if (is_ntfs_stream_smb_fname(fsp->fsp_name) &&
154 !is_ntfs_default_stream_smb_fname(fsp->fsp_name)) {
155 DEBUG(2,("%s: kernel_flock on stream\n", fsp_str_dbg(fsp)));
156 return 0;
157 }
158
159 kernel_flock(fsp->fh->fd, share_mode, access_mask);
160
161 if (!set_gpfs_sharemode(fsp, access_mask, fsp->share_access)) {
162 ret = -1;
163 }
164
165 END_PROFILE(syscall_kernel_flock);
166
167 return ret;
168 }
169
170 static int vfs_gpfs_close(vfs_handle_struct *handle, files_struct *fsp)
171 {
172
173 struct gpfs_config_data *config;
174
175 SMB_VFS_HANDLE_GET_DATA(handle, config,
176 struct gpfs_config_data,
177 return -1);
178
179 if (config->sharemodes && (fsp->fh != NULL) && (fsp->fh->fd != -1)) {
180 set_gpfs_sharemode(fsp, 0, 0);
181 }
182
183 return SMB_VFS_NEXT_CLOSE(handle, fsp);
184 }
185
186 static int set_gpfs_lease(int fd, int leasetype)
187 {
188 int gpfs_type = GPFS_LEASE_NONE;
189
190 if (leasetype == F_RDLCK) {
191 gpfs_type = GPFS_LEASE_READ;
192 }
193 if (leasetype == F_WRLCK) {
194 gpfs_type = GPFS_LEASE_WRITE;
195 }
196
197 /* we unconditionally set CAP_LEASE, rather than looking for
198 -1/EACCES as there is a bug in some versions of
199 libgpfs_gpl.so which results in a leaked fd on /dev/ss0
200 each time we try this with the wrong capabilities set
201 */
202 linux_set_lease_capability();
203 return gpfswrap_set_lease(fd, gpfs_type);
204 }
205
206 static int vfs_gpfs_setlease(vfs_handle_struct *handle, files_struct *fsp,
207 int leasetype)
208 {
209 struct gpfs_config_data *config;
210 int ret=0;
211
212 START_PROFILE(syscall_linux_setlease);
213
214 SMB_VFS_HANDLE_GET_DATA(handle, config,
215 struct gpfs_config_data,
216 return -1);
217
218 if (linux_set_lease_sighandler(fsp->fh->fd) == -1) {
219 ret = -1;
220 goto failure;
221 }
222
223 if (config->leases) {
224 /*
225 * Ensure the lease owner is root to allow
226 * correct delivery of lease-break signals.
227 */
228 become_root();
229 ret = set_gpfs_lease(fsp->fh->fd,leasetype);
230 unbecome_root();
231 }
232
233 failure:
234 END_PROFILE(syscall_linux_setlease);
235
236 return ret;
237 }
238
239 static int vfs_gpfs_get_real_filename(struct vfs_handle_struct *handle,
240 const char *path,
241 const char *name,
242 TALLOC_CTX *mem_ctx,
243 char **found_name)
244 {
245 int result;
246 char *full_path;
247 char real_pathname[PATH_MAX+1];
248 int buflen;
249 bool mangled;
250 struct gpfs_config_data *config;
251
252 SMB_VFS_HANDLE_GET_DATA(handle, config,
253 struct gpfs_config_data,
254 return -1);
255
256 if (!config->getrealfilename) {
257 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
258 mem_ctx, found_name);
259 }
260
261 mangled = mangle_is_mangled(name, handle->conn->params);
262 if (mangled) {
263 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
264 mem_ctx, found_name);
265 }
266
267 full_path = talloc_asprintf(talloc_tos(), "%s/%s", path, name);
268 if (full_path == NULL) {
269 errno = ENOMEM;
270 return -1;
271 }
272
273 buflen = sizeof(real_pathname) - 1;
274
275 result = gpfswrap_get_realfilename_path(full_path, real_pathname,
276 &buflen);
277
278 TALLOC_FREE(full_path);
279
280 if ((result == -1) && (errno == ENOSYS)) {
281 return SMB_VFS_NEXT_GET_REAL_FILENAME(
282 handle, path, name, mem_ctx, found_name);
283 }
284
285 if (result == -1) {
286 DEBUG(10, ("smbd_gpfs_get_realfilename_path returned %s\n",
287 strerror(errno)));
288 return -1;
289 }
290
291 /*
292 * GPFS does not necessarily null-terminate the returned path
293 * but instead returns the buffer length in buflen.
294 */
295
296 if (buflen < sizeof(real_pathname)) {
297 real_pathname[buflen] = '\0';
298 } else {
299 real_pathname[sizeof(real_pathname)-1] = '\0';
300 }
301
302 DEBUG(10, ("smbd_gpfs_get_realfilename_path: %s/%s -> %s\n",
303 path, name, real_pathname));
304
305 name = strrchr_m(real_pathname, '/');
306 if (name == NULL) {
307 errno = ENOENT;
308 return -1;
309 }
310
311 *found_name = talloc_strdup(mem_ctx, name+1);
312 if (*found_name == NULL) {
313 errno = ENOMEM;
314 return -1;
315 }
316
317 return 0;
318 }
319
320 static void sd2gpfs_control(uint16_t control, struct gpfs_acl *gacl)
321 {
322 unsigned int gpfs_aclflags = 0;
323 control &= SEC_DESC_DACL_PROTECTED | SEC_DESC_SACL_PROTECTED |
324 SEC_DESC_DACL_AUTO_INHERITED | SEC_DESC_SACL_AUTO_INHERITED |
325 SEC_DESC_DACL_DEFAULTED | SEC_DESC_SACL_DEFAULTED |
326 SEC_DESC_DACL_PRESENT | SEC_DESC_SACL_PRESENT;
327 gpfs_aclflags = control << 8;
328 if (!(control & SEC_DESC_DACL_PRESENT))
329 gpfs_aclflags |= ACL4_FLAG_NULL_DACL;
330 if (!(control & SEC_DESC_SACL_PRESENT))
331 gpfs_aclflags |= ACL4_FLAG_NULL_SACL;
332 gacl->acl_level = GPFS_ACL_LEVEL_V4FLAGS;
333 gacl->v4Level1.acl_flags = gpfs_aclflags;
334 }
335
336 static uint16_t gpfs2sd_control(unsigned int gpfs_aclflags)
337 {
338 uint16_t control = gpfs_aclflags >> 8;
339 control &= SEC_DESC_DACL_PROTECTED | SEC_DESC_SACL_PROTECTED |
340 SEC_DESC_DACL_AUTO_INHERITED | SEC_DESC_SACL_AUTO_INHERITED |
341 SEC_DESC_DACL_DEFAULTED | SEC_DESC_SACL_DEFAULTED |
342 SEC_DESC_DACL_PRESENT | SEC_DESC_SACL_PRESENT;
343 control |= SEC_DESC_SELF_RELATIVE;
344 return control;
345 }
346
347 static void gpfs_dumpacl(int level, struct gpfs_acl *gacl)
348 {
349 gpfs_aclCount_t i;
350 if (gacl==NULL)
351 {
352 DEBUG(0, ("gpfs acl is NULL\n"));
353 return;
354 }
355
356 DEBUG(level, ("len: %d, level: %d, version: %d, nace: %d, "
357 "control: %x\n",
358 gacl->acl_len, gacl->acl_level, gacl->acl_version,
359 gacl->acl_nace, gpfs_acl_flags(gacl)));
360
361 for(i=0; i<gacl->acl_nace; i++)
362 {
363 struct gpfs_ace_v4 *gace = gpfs_ace_ptr(gacl, i);
364 DEBUG(level, ("\tace[%d]: type:%d, flags:0x%x, mask:0x%x, "
365 "iflags:0x%x, who:%u\n",
366 i, gace->aceType, gace->aceFlags, gace->aceMask,
367 gace->aceIFlags, gace->aceWho));
368 }
369 }
370
371 static int gpfs_getacl_with_capability(const char *fname, int flags, void *buf)
372 {
373 int ret, saved_errno;
374
375 set_effective_capability(DAC_OVERRIDE_CAPABILITY);
376
377 ret = gpfswrap_getacl(discard_const_p(char, fname), flags, buf);
378 saved_errno = errno;
379
380 drop_effective_capability(DAC_OVERRIDE_CAPABILITY);
381
382 errno = saved_errno;
383 return ret;
384 }
385
386 /*
387 * get the ACL from GPFS, allocated on the specified mem_ctx
388 * internally retries when initial buffer was too small
389 *
390 * caller needs to cast result to either
391 * raw = yes: struct gpfs_opaque_acl
392 * raw = no: struct gpfs_acl
393 *
394 */
395 static void *vfs_gpfs_getacl(TALLOC_CTX *mem_ctx,
396 const char *fname,
397 const bool raw,
398 const gpfs_aclType_t type)
399 {
400
401 void *aclbuf;
402 size_t size = 512;
403 int ret, flags;
404 unsigned int *len;
405 size_t struct_size;
406 bool use_capability = false;
407
408 again:
409
410 aclbuf = talloc_zero_size(mem_ctx, size);
411 if (aclbuf == NULL) {
412 errno = ENOMEM;
413 return NULL;
414 }
415
416 if (raw) {
417 struct gpfs_opaque_acl *buf = (struct gpfs_opaque_acl *) aclbuf;
418 buf->acl_type = type;
419 flags = GPFS_GETACL_NATIVE;
420 len = (unsigned int *) &(buf->acl_buffer_len);
421 struct_size = sizeof(struct gpfs_opaque_acl);
422 } else {
423 struct gpfs_acl *buf = (struct gpfs_acl *) aclbuf;
424 buf->acl_type = type;
425 buf->acl_level = GPFS_ACL_LEVEL_V4FLAGS;
426 flags = GPFS_GETACL_STRUCT;
427 len = &(buf->acl_len);
428 /* reserve space for control flags in gpfs 3.5 and beyond */
429 struct_size = sizeof(struct gpfs_acl) + sizeof(unsigned int);
430 }
431
432 /* set the length of the buffer as input value */
433 *len = size;
434
435 if (use_capability) {
436 ret = gpfs_getacl_with_capability(fname, flags, aclbuf);
437 } else {
438 ret = gpfswrap_getacl(discard_const_p(char, fname),
439 flags, aclbuf);
440 if ((ret != 0) && (errno == EACCES)) {
441 DBG_DEBUG("Retry with DAC capability for %s\n", fname);
442 use_capability = true;
443 ret = gpfs_getacl_with_capability(fname, flags, aclbuf);
444 }
445 }
446
447 if ((ret != 0) && (errno == ENOSPC)) {
448 /*
449 * get the size needed to accommodate the complete buffer
450 *
451 * the value returned only applies to the ACL blob in the
452 * struct so make sure to also have headroom for the first
453 * struct members by adding room for the complete struct
454 * (might be a few bytes too much then)
455 */
456 size = *len + struct_size;
457 talloc_free(aclbuf);
458 DEBUG(10, ("Increasing ACL buffer size to %zu\n", size));
459 goto again;
460 }
461
462 if (ret != 0) {
463 DEBUG(5, ("smbd_gpfs_getacl failed with %s\n",
464 strerror(errno)));
465 talloc_free(aclbuf);
466 return NULL;
467 }
468
469 return aclbuf;
470 }
471
472 /* Tries to get nfs4 acls and returns SMB ACL allocated.
473 * On failure returns 1 if it got non-NFSv4 ACL to prompt
474 * retry with POSIX ACL checks.
475 * On failure returns -1 if there is system (GPFS) error, check errno.
476 * Returns 0 on success
477 */
478 static int gpfs_get_nfs4_acl(TALLOC_CTX *mem_ctx, const char *fname,
479 struct SMB4ACL_T **ppacl)
480 {
481 gpfs_aclCount_t i;
482 struct gpfs_acl *gacl = NULL;
483 DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname));
484
485 /* Get the ACL */
486 gacl = (struct gpfs_acl*) vfs_gpfs_getacl(talloc_tos(), fname,
487 false, 0);
488 if (gacl == NULL) {
489 DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
490 fname, strerror(errno)));
491 if (errno == ENODATA) {
492 /*
493 * GPFS returns ENODATA for snapshot
494 * directories. Retry with POSIX ACLs check.
495 */
496 return 1;
497 }
498
499 return -1;
500 }
501
502 if (gacl->acl_type != GPFS_ACL_TYPE_NFS4) {
503 DEBUG(10, ("Got non-nfsv4 acl\n"));
504 /* Retry with POSIX ACLs check */
505 talloc_free(gacl);
506 return 1;
507 }
508
509 *ppacl = smb_create_smb4acl(mem_ctx);
510
511 if (gacl->acl_level == GPFS_ACL_LEVEL_V4FLAGS) {
512 uint16_t control = gpfs2sd_control(gpfs_acl_flags(gacl));
513 smbacl4_set_controlflags(*ppacl, control);
514 }
515
516 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d, control: %x\n",
517 gacl->acl_len, gacl->acl_level, gacl->acl_version,
518 gacl->acl_nace, gpfs_acl_flags(gacl)));
519
520 for (i=0; i<gacl->acl_nace; i++) {
521 struct gpfs_ace_v4 *gace = gpfs_ace_ptr(gacl, i);
522 SMB_ACE4PROP_T smbace = { 0 };
523 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
524 "who: %d\n", gace->aceType, gace->aceIFlags,
525 gace->aceFlags, gace->aceMask, gace->aceWho));
526
527 if (gace->aceIFlags & ACE4_IFLAG_SPECIAL_ID) {
528 smbace.flags |= SMB_ACE4_ID_SPECIAL;
529 switch (gace->aceWho) {
530 case ACE4_SPECIAL_OWNER:
531 smbace.who.special_id = SMB_ACE4_WHO_OWNER;
532 break;
533 case ACE4_SPECIAL_GROUP:
534 smbace.who.special_id = SMB_ACE4_WHO_GROUP;
535 break;
536 case ACE4_SPECIAL_EVERYONE:
537 smbace.who.special_id = SMB_ACE4_WHO_EVERYONE;
538 break;
539 default:
540 DEBUG(8, ("invalid special gpfs id %d "
541 "ignored\n", gace->aceWho));
542 continue; /* don't add it */
543 }
544 } else {
545 if (gace->aceFlags & ACE4_FLAG_GROUP_ID)
546 smbace.who.gid = gace->aceWho;
547 else
548 smbace.who.uid = gace->aceWho;
549 }
550
551 /* remove redundant deny entries */
552 if (i > 0 && gace->aceType == SMB_ACE4_ACCESS_DENIED_ACE_TYPE) {
553 struct gpfs_ace_v4 *prev = gpfs_ace_ptr(gacl, i - 1);
554 if (prev->aceType == SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE &&
555 prev->aceFlags == gace->aceFlags &&
556 prev->aceIFlags == gace->aceIFlags &&
557 (gace->aceMask & prev->aceMask) == 0 &&
558 gace->aceWho == prev->aceWho) {
559 /* it's redundant - skip it */
560 continue;
561 }
562 }
563
564 smbace.aceType = gace->aceType;
565 smbace.aceFlags = gace->aceFlags;
566 smbace.aceMask = gace->aceMask;
567 smb_add_ace4(*ppacl, &smbace);
568 }
569
570 talloc_free(gacl);
571
572 return 0;
573 }
574
575 static NTSTATUS gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
576 files_struct *fsp, uint32_t security_info,
577 TALLOC_CTX *mem_ctx,
578 struct security_descriptor **ppdesc)
579 {
580 struct SMB4ACL_T *pacl = NULL;
581 int result;
582 struct gpfs_config_data *config;
583 TALLOC_CTX *frame = talloc_stackframe();
584 NTSTATUS status;
585
586 *ppdesc = NULL;
587
588 SMB_VFS_HANDLE_GET_DATA(handle, config,
589 struct gpfs_config_data,
590 return NT_STATUS_INTERNAL_ERROR);
591
592 if (!config->acl) {
593 status = SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info,
594 mem_ctx, ppdesc);
595 TALLOC_FREE(frame);
596 return status;
597 }
598
599 result = gpfs_get_nfs4_acl(frame, fsp->fsp_name->base_name, &pacl);
600
601 if (result == 0) {
602 status = smb_fget_nt_acl_nfs4(fsp, &config->nfs4_params,
603 security_info,
604 mem_ctx, ppdesc, pacl);
605 TALLOC_FREE(frame);
606 return status;
607 }
608
609 if (result > 0) {
610 DEBUG(10, ("retrying with posix acl...\n"));
611 status = posix_fget_nt_acl(fsp, security_info,
612 mem_ctx, ppdesc);
613 TALLOC_FREE(frame);
614 return status;
615 }
616
617 TALLOC_FREE(frame);
618
619 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
620 return map_nt_error_from_unix(errno);
621 }
622
623 static NTSTATUS gpfsacl_get_nt_acl(vfs_handle_struct *handle,
624 const struct smb_filename *smb_fname,
625 uint32_t security_info,
626 TALLOC_CTX *mem_ctx,
627 struct security_descriptor **ppdesc)
628 {
629 struct SMB4ACL_T *pacl = NULL;
630 int result;
631 struct gpfs_config_data *config;
632 TALLOC_CTX *frame = talloc_stackframe();
633 NTSTATUS status;
634
635 *ppdesc = NULL;
636
637 SMB_VFS_HANDLE_GET_DATA(handle, config,
638 struct gpfs_config_data,
639 return NT_STATUS_INTERNAL_ERROR);
640
641 if (!config->acl) {
642 status = SMB_VFS_NEXT_GET_NT_ACL(handle, smb_fname,
643 security_info,
644 mem_ctx, ppdesc);
645 TALLOC_FREE(frame);
646 return status;
647 }
648
649 result = gpfs_get_nfs4_acl(frame, smb_fname->base_name, &pacl);
650
651 if (result == 0) {
652 status = smb_get_nt_acl_nfs4(handle->conn, smb_fname,
653 &config->nfs4_params,
654 security_info, mem_ctx, ppdesc,
655 pacl);
656 TALLOC_FREE(frame);
657 return status;
658 }
659
660 if (result > 0) {
661 DEBUG(10, ("retrying with posix acl...\n"));
662 status = posix_get_nt_acl(handle->conn, smb_fname,
663 security_info, mem_ctx, ppdesc);
664 TALLOC_FREE(frame);
665 return status;
666 }
667
668 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
669 TALLOC_FREE(frame);
670 return map_nt_error_from_unix(errno);
671 }
672
673 static struct gpfs_acl *vfs_gpfs_smbacl2gpfsacl(TALLOC_CTX *mem_ctx,
674 files_struct *fsp,
675 struct SMB4ACL_T *smbacl,
676 bool controlflags)
677 {
678 struct gpfs_acl *gacl;
679 gpfs_aclLen_t gacl_len;
680 struct SMB4ACE_T *smbace;
681
682 gacl_len = offsetof(gpfs_acl_t, ace_v4) + sizeof(unsigned int)
683 + smb_get_naces(smbacl) * sizeof(gpfs_ace_v4_t);
684
685 gacl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, gacl_len);
686 if (gacl == NULL) {
687 DEBUG(0, ("talloc failed\n"));
688 errno = ENOMEM;
689 return NULL;
690 }
691
692 gacl->acl_level = GPFS_ACL_LEVEL_BASE;
693 gacl->acl_version = GPFS_ACL_VERSION_NFS4;
694 gacl->acl_type = GPFS_ACL_TYPE_NFS4;
695 gacl->acl_nace = 0; /* change later... */
696
697 if (controlflags) {
698 gacl->acl_level = GPFS_ACL_LEVEL_V4FLAGS;
699 sd2gpfs_control(smbacl4_get_controlflags(smbacl), gacl);
700 }
701
702 for (smbace=smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
703 struct gpfs_ace_v4 *gace = gpfs_ace_ptr(gacl, gacl->acl_nace);
704 SMB_ACE4PROP_T *aceprop = smb_get_ace4(smbace);
705
706 gace->aceType = aceprop->aceType;
707 gace->aceFlags = aceprop->aceFlags;
708 gace->aceMask = aceprop->aceMask;
709
710 /*
711 * GPFS can't distinguish between WRITE and APPEND on
712 * files, so one being set without the other is an
713 * error. Sorry for the many ()'s :-)
714 */
715
716 if (!fsp->is_directory
717 &&
718 ((((gace->aceMask & ACE4_MASK_WRITE) == 0)
719 && ((gace->aceMask & ACE4_MASK_APPEND) != 0))
720 ||
721 (((gace->aceMask & ACE4_MASK_WRITE) != 0)
722 && ((gace->aceMask & ACE4_MASK_APPEND) == 0)))
723 &&
724 lp_parm_bool(fsp->conn->params->service, "gpfs",
725 "merge_writeappend", True)) {
726 DEBUG(2, ("vfs_gpfs.c: file [%s]: ACE contains "
727 "WRITE^APPEND, setting WRITE|APPEND\n",
728 fsp_str_dbg(fsp)));
729 gace->aceMask |= ACE4_MASK_WRITE|ACE4_MASK_APPEND;
730 }
731
732 gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
733
734 if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
735 {
736 switch(aceprop->who.special_id)
737 {
738 case SMB_ACE4_WHO_EVERYONE:
739 gace->aceWho = ACE4_SPECIAL_EVERYONE;
740 break;
741 case SMB_ACE4_WHO_OWNER:
742 gace->aceWho = ACE4_SPECIAL_OWNER;
743 break;
744 case SMB_ACE4_WHO_GROUP:
745 gace->aceWho = ACE4_SPECIAL_GROUP;
746 break;
747 default:
748 DEBUG(8, ("unsupported special_id %d\n", aceprop->who.special_id));
749 continue; /* don't add it !!! */
750 }
751 } else {
752 /* just only for the type safety... */
753 if (aceprop->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
754 gace->aceWho = aceprop->who.gid;
755 else
756 gace->aceWho = aceprop->who.uid;
757 }
758
759 gacl->acl_nace++;
760 }
761 gacl->acl_len = (char *)gpfs_ace_ptr(gacl, gacl->acl_nace)
762 - (char *)gacl;
763 return gacl;
764 }
765
766 static bool gpfsacl_process_smbacl(vfs_handle_struct *handle,
767 files_struct *fsp,
768 struct SMB4ACL_T *smbacl)
769 {
770 int ret;
771 struct gpfs_acl *gacl;
772 TALLOC_CTX *mem_ctx = talloc_tos();
773
774 gacl = vfs_gpfs_smbacl2gpfsacl(mem_ctx, fsp, smbacl, true);
775 if (gacl == NULL) { /* out of memory */
776 return False;
777 }
778 ret = gpfswrap_putacl(fsp->fsp_name->base_name,
779 GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gacl);
780
781 if ((ret != 0) && (errno == EINVAL)) {
782 DEBUG(10, ("Retry without nfs41 control flags\n"));
783 talloc_free(gacl);
784 gacl = vfs_gpfs_smbacl2gpfsacl(mem_ctx, fsp, smbacl, false);
785 if (gacl == NULL) { /* out of memory */
786 return False;
787 }
788 ret = gpfswrap_putacl(fsp->fsp_name->base_name,
789 GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA,
790 gacl);
791 }
792
793 if (ret != 0) {
794 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno)));
795 gpfs_dumpacl(8, gacl);
796 return False;
797 }
798
799 DEBUG(10, ("gpfs_putacl succeeded\n"));
800 return True;
801 }
802
803 static NTSTATUS gpfsacl_set_nt_acl_internal(vfs_handle_struct *handle, files_struct *fsp, uint32_t security_info_sent, const struct security_descriptor *psd)
804 {
805 struct gpfs_acl *acl;
806 NTSTATUS result = NT_STATUS_ACCESS_DENIED;
807
808 acl = (struct gpfs_acl*) vfs_gpfs_getacl(talloc_tos(),
809 fsp->fsp_name->base_name,
810 false, 0);
811 if (acl == NULL) {
812 return map_nt_error_from_unix(errno);
813 }
814
815 if (acl->acl_version == GPFS_ACL_VERSION_NFS4) {
816 struct gpfs_config_data *config;
817
818 if (lp_parm_bool(fsp->conn->params->service, "gpfs",
819 "refuse_dacl_protected", false)
820 && (psd->type&SEC_DESC_DACL_PROTECTED)) {
821 DEBUG(2, ("Rejecting unsupported ACL with DACL_PROTECTED bit set\n"));
822 talloc_free(acl);
823 return NT_STATUS_NOT_SUPPORTED;
824 }
825
826 SMB_VFS_HANDLE_GET_DATA(handle, config,
827 struct gpfs_config_data,
828 return NT_STATUS_INTERNAL_ERROR);
829
830 result = smb_set_nt_acl_nfs4(handle,
831 fsp, &config->nfs4_params, security_info_sent, psd,
832 gpfsacl_process_smbacl);
833 } else { /* assume POSIX ACL - by default... */
834 result = set_nt_acl(fsp, security_info_sent, psd);
835 }
836
837 talloc_free(acl);
838 return result;
839 }
840
841 static NTSTATUS gpfsacl_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32_t security_info_sent, const struct security_descriptor *psd)
842 {
843 struct gpfs_config_data *config;
844
845 SMB_VFS_HANDLE_GET_DATA(handle, config,
846 struct gpfs_config_data,
847 return NT_STATUS_INTERNAL_ERROR);
848
849 if (!config->acl) {
850 return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
851 }
852
853 return gpfsacl_set_nt_acl_internal(handle, fsp, security_info_sent, psd);
854 }
855
856 static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl, TALLOC_CTX *mem_ctx)
857 {
858 SMB_ACL_T result;
859 gpfs_aclCount_t i;
860
861 result = sys_acl_init(mem_ctx);
862 if (result == NULL) {
863 errno = ENOMEM;
864 return NULL;
865 }
866
867 result->count = pacl->acl_nace;
868 result->acl = talloc_realloc(result, result->acl, struct smb_acl_entry,
869 result->count);
870 if (result->acl == NULL) {
871 TALLOC_FREE(result);
872 errno = ENOMEM;
873 return NULL;
874 }
875
876 for (i=0; i<pacl->acl_nace; i++) {
877 struct smb_acl_entry *ace = &result->acl[i];
878 const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
879
880 DEBUG(10, ("Converting type %d id %lu perm %x\n",
881 (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
882 (int)g_ace->ace_perm));
883
884 switch (g_ace->ace_type) {
885 case GPFS_ACL_USER:
886 ace->a_type = SMB_ACL_USER;
887 ace->info.user.uid = (uid_t)g_ace->ace_who;
888 break;
889 case GPFS_ACL_USER_OBJ:
890 ace->a_type = SMB_ACL_USER_OBJ;
891 break;
892 case GPFS_ACL_GROUP:
893 ace->a_type = SMB_ACL_GROUP;
894 ace->info.group.gid = (gid_t)g_ace->ace_who;
895 break;
896 case GPFS_ACL_GROUP_OBJ:
897 ace->a_type = SMB_ACL_GROUP_OBJ;
898 break;
899 case GPFS_ACL_OTHER:
900 ace->a_type = SMB_ACL_OTHER;
901 break;
902 case GPFS_ACL_MASK:
903 ace->a_type = SMB_ACL_MASK;
904 break;
905 default:
906 DEBUG(10, ("Got invalid ace_type: %d\n",
907 g_ace->ace_type));
908 TALLOC_FREE(result);
909 errno = EINVAL;
910 return NULL;
911 }
912
913 ace->a_perm = 0;
914 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
915 SMB_ACL_READ : 0;
916 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
917 SMB_ACL_WRITE : 0;
918 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
919 SMB_ACL_EXECUTE : 0;
920
921 DEBUGADD(10, ("Converted to %d perm %x\n",
922 ace->a_type, ace->a_perm));
923 }
924
925 return result;
926 }
927
928 static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type,
929 TALLOC_CTX *mem_ctx)
930 {
931 struct gpfs_acl *pacl;
932 SMB_ACL_T result = NULL;
933
934 pacl = vfs_gpfs_getacl(talloc_tos(), path, false, type);
935
936 if (pacl == NULL) {
937 DEBUG(10, ("vfs_gpfs_getacl failed for %s with %s\n",
938 path, strerror(errno)));
939 if (errno == 0) {
940 errno = EINVAL;
941 }
942 goto done;
943 }
944
945 if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
946 DEBUG(10, ("Got acl version %d, expected %d\n",
947 pacl->acl_version, GPFS_ACL_VERSION_POSIX));
948 errno = EINVAL;
949 goto done;
950 }
951
952 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
953 pacl->acl_len, pacl->acl_level, pacl->acl_version,
954 pacl->acl_nace));
955
956 result = gpfs2smb_acl(pacl, mem_ctx);
957 if (result != NULL) {
958 errno = 0;
959 }
960
961 done:
962
963 if (pacl != NULL) {
964 talloc_free(pacl);
965 }
966 if (errno != 0) {
967 TALLOC_FREE(result);
968 }
969 return result;
970 }
971
972 static SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
973 const struct smb_filename *smb_fname,
974 SMB_ACL_TYPE_T type,
975 TALLOC_CTX *mem_ctx)
976 {
977 gpfs_aclType_t gpfs_type;
978 struct gpfs_config_data *config;
979
980 SMB_VFS_HANDLE_GET_DATA(handle, config,
981 struct gpfs_config_data,
982 return NULL);
983
984 if (!config->acl) {
985 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, smb_fname,
986 type, mem_ctx);
987 }
988
989 switch(type) {
990 case SMB_ACL_TYPE_ACCESS:
991 gpfs_type = GPFS_ACL_TYPE_ACCESS;
992 break;
993 case SMB_ACL_TYPE_DEFAULT:
994 gpfs_type = GPFS_ACL_TYPE_DEFAULT;
995 break;
996 default:
997 DEBUG(0, ("Got invalid type: %d\n", type));
998 smb_panic("exiting");
999 }
1000
1001 return gpfsacl_get_posix_acl(smb_fname->base_name, gpfs_type, mem_ctx);
1002 }
1003
1004 static SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
1005 files_struct *fsp,
1006 TALLOC_CTX *mem_ctx)
1007 {
1008 struct gpfs_config_data *config;
1009
1010 SMB_VFS_HANDLE_GET_DATA(handle, config,
1011 struct gpfs_config_data,
1012 return NULL);
1013
1014 if (!config->acl) {
1015 return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
1016 }
1017
1018 return gpfsacl_get_posix_acl(fsp->fsp_name->base_name,
1019 GPFS_ACL_TYPE_ACCESS, mem_ctx);
1020 }
1021
1022 static int gpfsacl_sys_acl_blob_get_file(vfs_handle_struct *handle,
1023 const struct smb_filename *smb_fname,
1024 TALLOC_CTX *mem_ctx,
1025 char **blob_description,
1026 DATA_BLOB *blob)
1027 {
1028 struct gpfs_config_data *config;
1029 struct gpfs_opaque_acl *acl = NULL;
1030 DATA_BLOB aclblob;
1031 int result;
1032 const char *path_p = smb_fname->base_name;
1033
1034 SMB_VFS_HANDLE_GET_DATA(handle, config,
1035 struct gpfs_config_data,
1036 return -1);
1037
1038 if (!config->acl) {
1039 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, smb_fname,
1040 mem_ctx,
1041 blob_description,
1042 blob);
1043 }
1044
1045 errno = 0;
1046 acl = (struct gpfs_opaque_acl *)
1047 vfs_gpfs_getacl(mem_ctx,
1048 path_p,
1049 true,
1050 GPFS_ACL_TYPE_NFS4);
1051
1052 if (errno) {
1053 DEBUG(5, ("vfs_gpfs_getacl finished with errno %d: %s\n",
1054 errno, strerror(errno)));
1055
1056 /* EINVAL means POSIX ACL, bail out on other cases */
1057 if (errno != EINVAL) {
1058 return -1;
1059 }
1060 }
1061
1062 if (acl != NULL) {
1063 /*
1064 * file has NFSv4 ACL
1065 *
1066 * we only need the actual ACL blob here
1067 * acl_version will always be NFS4 because we asked
1068 * for NFS4
1069 * acl_type is only used for POSIX ACLs
1070 */
1071 aclblob.data = (uint8_t*) acl->acl_var_data;
1072 aclblob.length = acl->acl_buffer_len;
1073
1074 *blob_description = talloc_strdup(mem_ctx, "gpfs_nfs4_acl");
1075 if (!*blob_description) {
1076 talloc_free(acl);
1077 errno = ENOMEM;
1078 return -1;
1079 }
1080
1081 result = non_posix_sys_acl_blob_get_file_helper(handle, smb_fname,
1082 aclblob,
1083 mem_ctx, blob);
1084
1085 talloc_free(acl);
1086 return result;
1087 }
1088
1089 /* fall back to POSIX ACL */
1090 return posix_sys_acl_blob_get_file(handle, smb_fname, mem_ctx,
1091 blob_description, blob);
1092 }
1093
1094 static int gpfsacl_sys_acl_blob_get_fd(vfs_handle_struct *handle,
1095 files_struct *fsp,
1096 TALLOC_CTX *mem_ctx,
1097 char **blob_description,
1098 DATA_BLOB *blob)
1099 {
1100 struct gpfs_config_data *config;
1101 struct gpfs_opaque_acl *acl = NULL;
1102 DATA_BLOB aclblob;
1103 int result;
1104
1105 SMB_VFS_HANDLE_GET_DATA(handle, config,
1106 struct gpfs_config_data,
1107 return -1);
1108
1109 if (!config->acl) {
1110 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
1111 blob_description, blob);
1112 }
1113
1114 errno = 0;
1115 acl = (struct gpfs_opaque_acl *) vfs_gpfs_getacl(mem_ctx,
1116 fsp->fsp_name->base_name,
1117 true,
1118 GPFS_ACL_TYPE_NFS4);
1119
1120 if (errno) {
1121 DEBUG(5, ("vfs_gpfs_getacl finished with errno %d: %s\n",
1122 errno, strerror(errno)));
1123
1124 /* EINVAL means POSIX ACL, bail out on other cases */
1125 if (errno != EINVAL) {
1126 return -1;
1127 }
1128 }
1129
1130 if (acl != NULL) {
1131 /*
1132 * file has NFSv4 ACL
1133 *
1134 * we only need the actual ACL blob here
1135 * acl_version will always be NFS4 because we asked
1136 * for NFS4
1137 * acl_type is only used for POSIX ACLs
1138 */
1139 aclblob.data = (uint8_t*) acl->acl_var_data;
1140 aclblob.length = acl->acl_buffer_len;
1141
1142 *blob_description = talloc_strdup(mem_ctx, "gpfs_nfs4_acl");
1143 if (!*blob_description) {
1144 talloc_free(acl);
1145 errno = ENOMEM;
1146 return -1;
1147 }
1148
1149 result = non_posix_sys_acl_blob_get_fd_helper(handle, fsp,
1150 aclblob, mem_ctx,
1151 blob);
1152
1153 talloc_free(acl);
1154 return result;
1155 }
1156
1157 /* fall back to POSIX ACL */
1158 return posix_sys_acl_blob_get_fd(handle, fsp, mem_ctx,
1159 blob_description, blob);
1160 }
1161
1162 static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
1163 SMB_ACL_TYPE_T type)
1164 {
1165 gpfs_aclLen_t len;
1166 struct gpfs_acl *result;
1167 int i;
1168
1169 DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
1170
1171 len = offsetof(gpfs_acl_t, ace_v1) + (pacl->count) *
1172 sizeof(gpfs_ace_v1_t);
1173
1174 result = (struct gpfs_acl *)SMB_MALLOC(len);
1175 if (result == NULL) {
1176 errno = ENOMEM;
1177 return result;
1178 }
1179
1180 result->acl_len = len;
1181 result->acl_level = 0;
1182 result->acl_version = GPFS_ACL_VERSION_POSIX;
1183 result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
1184 GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
1185 result->acl_nace = pacl->count;
1186
1187 for (i=0; i<pacl->count; i++) {
1188 const struct smb_acl_entry *ace = &pacl->acl[i];
1189 struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
1190
1191 DEBUG(10, ("Converting type %d perm %x\n",
1192 (int)ace->a_type, (int)ace->a_perm));
1193
1194 g_ace->ace_perm = 0;
1195
1196 switch(ace->a_type) {
1197 case SMB_ACL_USER:
1198 g_ace->ace_type = GPFS_ACL_USER;
1199 g_ace->ace_who = (gpfs_uid_t)ace->info.user.uid;
1200 break;
1201 case SMB_ACL_USER_OBJ:
1202 g_ace->ace_type = GPFS_ACL_USER_OBJ;
1203 g_ace->ace_perm |= ACL_PERM_CONTROL;
1204 g_ace->ace_who = 0;
1205 break;
1206 case SMB_ACL_GROUP:
1207 g_ace->ace_type = GPFS_ACL_GROUP;
1208 g_ace->ace_who = (gpfs_uid_t)ace->info.group.gid;
1209 break;
1210 case SMB_ACL_GROUP_OBJ:
1211 g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
1212 g_ace->ace_who = 0;
1213 break;
1214 case SMB_ACL_MASK:
1215 g_ace->ace_type = GPFS_ACL_MASK;
1216 g_ace->ace_perm = 0x8f;
1217 g_ace->ace_who = 0;
1218 break;
1219 case SMB_ACL_OTHER:
1220 g_ace->ace_type = GPFS_ACL_OTHER;
1221 g_ace->ace_who = 0;
1222 break;
1223 default:
1224 DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
1225 errno = EINVAL;
1226 SAFE_FREE(result);
1227 return NULL;
1228 }
1229
1230 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
1231 ACL_PERM_READ : 0;
1232 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
1233 ACL_PERM_WRITE : 0;
1234 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
1235 ACL_PERM_EXECUTE : 0;
1236
1237 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
1238 g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
1239 }
1240
1241 return result;
1242 }
1243
1244 static int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
1245 const struct smb_filename *smb_fname,
1246 SMB_ACL_TYPE_T type,
1247 SMB_ACL_T theacl)
1248 {
1249 struct gpfs_acl *gpfs_acl;
1250 int result;
1251 struct gpfs_config_data *config;
1252
1253 SMB_VFS_HANDLE_GET_DATA(handle, config,
1254 struct gpfs_config_data,
1255 return -1);
1256
1257 if (!config->acl) {
1258 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, smb_fname,
1259 type, theacl);
1260 }
1261
1262 gpfs_acl = smb2gpfs_acl(theacl, type);
1263 if (gpfs_acl == NULL) {
1264 return -1;
1265 }
1266
1267 result = gpfswrap_putacl(discard_const_p(char, smb_fname->base_name),
1268 GPFS_PUTACL_STRUCT|GPFS_ACL_SAMBA, gpfs_acl);
1269
1270 SAFE_FREE(gpfs_acl);
1271 return result;
1272 }
1273
1274 static int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
1275 files_struct *fsp,
1276 SMB_ACL_T theacl)
1277 {
1278 struct gpfs_config_data *config;
1279
1280 SMB_VFS_HANDLE_GET_DATA(handle, config,
1281 struct gpfs_config_data,
1282 return -1);
1283
1284 if (!config->acl) {
1285 return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
1286 }
1287
1288 return gpfsacl_sys_acl_set_file(handle, fsp->fsp_name,
1289 SMB_ACL_TYPE_ACCESS, theacl);
1290 }
1291
1292 static int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
1293 const struct smb_filename *smb_fname)
1294 {
1295 struct gpfs_config_data *config;
1296
1297 SMB_VFS_HANDLE_GET_DATA(handle, config,
1298 struct gpfs_config_data,
1299 return -1);
1300
1301 if (!config->acl) {
1302 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, smb_fname);
1303 }
1304
1305 errno = ENOTSUP;
1306 return -1;
1307 }
1308
1309 /*
1310 * Assumed: mode bits are shiftable and standard
1311 * Output: the new aceMask field for an smb nfs4 ace
1312 */
1313 static uint32_t gpfsacl_mask_filter(uint32_t aceType, uint32_t aceMask, uint32_t rwx)
1314 {
1315 const uint32_t posix_nfs4map[3] = {
1316 SMB_ACE4_EXECUTE, /* execute */
1317 SMB_ACE4_WRITE_DATA | SMB_ACE4_APPEND_DATA, /* write; GPFS specific */
1318 SMB_ACE4_READ_DATA /* read */
1319 };
1320 int i;
1321 uint32_t posix_mask = 0x01;
1322 uint32_t posix_bit;
1323 uint32_t nfs4_bits;
1324
1325 for(i=0; i<3; i++) {
1326 nfs4_bits = posix_nfs4map[i];
1327 posix_bit = rwx & posix_mask;
1328
1329 if (aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE) {
1330 if (posix_bit)
1331 aceMask |= nfs4_bits;
1332 else
1333 aceMask &= ~nfs4_bits;
1334 } else {
1335 /* add deny bits when suitable */
1336 if (!posix_bit)
1337 aceMask |= nfs4_bits;
1338 else
1339 aceMask &= ~nfs4_bits;
1340 } /* other ace types are unexpected */
1341
1342 posix_mask <<= 1;
1343 }
1344
1345 return aceMask;
1346 }
1347
1348 static int gpfsacl_emu_chmod(vfs_handle_struct *handle,
1349 const char *path, mode_t mode)
1350 {
1351 struct SMB4ACL_T *pacl = NULL;
1352 int result;
1353 bool haveAllowEntry[SMB_ACE4_WHO_EVERYONE + 1] = {False, False, False, False};
1354 int i;
1355 files_struct fake_fsp = { 0 }; /* TODO: rationalize parametrization */
1356 struct SMB4ACE_T *smbace;
1357 TALLOC_CTX *frame = talloc_stackframe();
1358
1359 DEBUG(10, ("gpfsacl_emu_chmod invoked for %s mode %o\n", path, mode));
1360
1361 result = gpfs_get_nfs4_acl(frame, path, &pacl);
1362 if (result) {
1363 TALLOC_FREE(frame);
1364 return result;
1365 }
1366
1367 if (mode & ~(S_IRWXU | S_IRWXG | S_IRWXO)) {
1368 DEBUG(2, ("WARNING: cutting extra mode bits %o on %s\n", mode, path));
1369 }
1370
1371 for (smbace=smb_first_ace4(pacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
1372 SMB_ACE4PROP_T *ace = smb_get_ace4(smbace);
1373 uint32_t specid = ace->who.special_id;
1374
1375 if (ace->flags&SMB_ACE4_ID_SPECIAL &&
1376 ace->aceType<=SMB_ACE4_ACCESS_DENIED_ACE_TYPE &&
1377 specid <= SMB_ACE4_WHO_EVERYONE) {
1378
1379 uint32_t newMask;
1380
1381 if (ace->aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE)
1382 haveAllowEntry[specid] = True;
1383
1384 /* mode >> 6 for @owner, mode >> 3 for @group,
1385 * mode >> 0 for @everyone */
1386 newMask = gpfsacl_mask_filter(ace->aceType, ace->aceMask,
1387 mode >> ((SMB_ACE4_WHO_EVERYONE - specid) * 3));
1388 if (ace->aceMask!=newMask) {
1389 DEBUG(10, ("ace changed for %s (%o -> %o) id=%d\n",
1390 path, ace->aceMask, newMask, specid));
1391 }
1392 ace->aceMask = newMask;
1393 }
1394 }
1395
1396 /* make sure we have at least ALLOW entries
1397 * for all the 3 special ids (@EVERYONE, @OWNER, @GROUP)
1398 * - if necessary
1399 */
1400 for(i = SMB_ACE4_WHO_OWNER; i<=SMB_ACE4_WHO_EVERYONE; i++) {
1401 SMB_ACE4PROP_T ace = { 0 };
1402
1403 if (haveAllowEntry[i]==True)
1404 continue;
1405
1406 ace.aceType = SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE;
1407 ace.flags |= SMB_ACE4_ID_SPECIAL;
1408 ace.who.special_id = i;
1409
1410 if (i==SMB_ACE4_WHO_GROUP) /* not sure it's necessary... */
1411 ace.aceFlags |= SMB_ACE4_IDENTIFIER_GROUP;
1412
1413 ace.aceMask = gpfsacl_mask_filter(ace.aceType, ace.aceMask,
1414 mode >> ((SMB_ACE4_WHO_EVERYONE - i) * 3));
1415
1416 /* don't add unnecessary aces */
1417 if (!ace.aceMask)
1418 continue;
1419
1420 /* we add it to the END - as windows expects allow aces */
1421 smb_add_ace4(pacl, &ace);
1422 DEBUG(10, ("Added ALLOW ace for %s, mode=%o, id=%d, aceMask=%x\n",
1423 path, mode, i, ace.aceMask));
1424 }
1425
1426 /* don't add complementary DENY ACEs here */
1427 fake_fsp.fsp_name = synthetic_smb_fname(
1428 frame, path, NULL, NULL, 0);
1429 if (fake_fsp.fsp_name == NULL) {
1430 errno = ENOMEM;
1431 TALLOC_FREE(frame);
1432 return -1;
1433 }
1434 /* put the acl */
1435 if (gpfsacl_process_smbacl(handle, &fake_fsp, pacl) == False) {
1436 TALLOC_FREE(frame);
1437 return -1;
1438 }
1439
1440 TALLOC_FREE(frame);
1441 return 0; /* ok for [f]chmod */
1442 }
1443
1444 static int vfs_gpfs_chmod(vfs_handle_struct *handle,
1445 const struct smb_filename *smb_fname,
1446 mode_t mode)
1447 {
1448 struct smb_filename *smb_fname_cpath;
1449 int rc;
1450
1451 smb_fname_cpath = cp_smb_filename(talloc_tos(), smb_fname);
1452 if (smb_fname_cpath == NULL) {
1453 errno = ENOMEM;
1454 return -1;
1455 }
1456
1457 if (SMB_VFS_NEXT_STAT(handle, smb_fname_cpath) != 0) {
1458 TALLOC_FREE(smb_fname_cpath);
1459 return -1;
1460 }
1461
1462 /* avoid chmod() if possible, to preserve acls */
1463 if ((smb_fname_cpath->st.st_ex_mode & ~S_IFMT) == mode) {
1464 TALLOC_FREE(smb_fname_cpath);
1465 return 0;
1466 }
1467
1468 rc = gpfsacl_emu_chmod(handle, smb_fname->base_name, mode);
1469 if (rc == 1)
1470 return SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
1471
1472 TALLOC_FREE(smb_fname_cpath);
1473 return rc;
1474 }
1475
1476 static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
1477 {
1478 SMB_STRUCT_STAT st;
1479 int rc;
1480
1481 if (SMB_VFS_NEXT_FSTAT(handle, fsp, &st) != 0) {
1482 return -1;
1483 }
1484
1485 /* avoid chmod() if possible, to preserve acls */
1486 if ((st.st_ex_mode & ~S_IFMT) == mode) {
1487 return 0;
1488 }
1489
1490 rc = gpfsacl_emu_chmod(handle, fsp->fsp_name->base_name,
1491 mode);
1492 if (rc == 1)
1493 return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
1494 return rc;
1495 }
1496
1497 static uint32_t vfs_gpfs_winattrs_to_dosmode(unsigned int winattrs)
1498 {
1499 uint32_t dosmode = 0;
1500
1501 if (winattrs & GPFS_WINATTR_ARCHIVE){
1502 dosmode |= FILE_ATTRIBUTE_ARCHIVE;
1503 }
1504 if (winattrs & GPFS_WINATTR_HIDDEN){
1505 dosmode |= FILE_ATTRIBUTE_HIDDEN;
1506 }
1507 if (winattrs & GPFS_WINATTR_SYSTEM){
1508 dosmode |= FILE_ATTRIBUTE_SYSTEM;
1509 }
1510 if (winattrs & GPFS_WINATTR_READONLY){
1511 dosmode |= FILE_ATTRIBUTE_READONLY;
1512 }
1513 if (winattrs & GPFS_WINATTR_SPARSE_FILE) {
1514 dosmode |= FILE_ATTRIBUTE_SPARSE;
1515 }
1516 if (winattrs & GPFS_WINATTR_OFFLINE) {
1517 dosmode |= FILE_ATTRIBUTE_OFFLINE;
1518 }
1519
1520 return dosmode;
1521 }
1522
1523 static unsigned int vfs_gpfs_dosmode_to_winattrs(uint32_t dosmode)
1524 {
1525 unsigned int winattrs = 0;
1526
1527 if (dosmode & FILE_ATTRIBUTE_ARCHIVE){
1528 winattrs |= GPFS_WINATTR_ARCHIVE;
1529 }
1530 if (dosmode & FILE_ATTRIBUTE_HIDDEN){
1531 winattrs |= GPFS_WINATTR_HIDDEN;
1532 }
1533 if (dosmode & FILE_ATTRIBUTE_SYSTEM){
1534 winattrs |= GPFS_WINATTR_SYSTEM;
1535 }
1536 if (dosmode & FILE_ATTRIBUTE_READONLY){
1537 winattrs |= GPFS_WINATTR_READONLY;
1538 }
1539 if (dosmode & FILE_ATTRIBUTE_SPARSE) {
1540 winattrs |= GPFS_WINATTR_SPARSE_FILE;
1541 }
1542 if (dosmode & FILE_ATTRIBUTE_OFFLINE) {
1543 winattrs |= GPFS_WINATTR_OFFLINE;
1544 }
1545
1546 return winattrs;
1547 }
1548
1549 static int get_dos_attr_with_capability(struct smb_filename *smb_fname,
1550 struct gpfs_winattr *attr)
1551 {
1552 int saved_errno = 0;
1553 int ret;
1554
1555 /*
1556 * According to MS-FSA 2.1.5.1.2.1 "Algorithm to Check Access to an
1557 * Existing File" FILE_LIST_DIRECTORY on a directory implies
1558 * FILE_READ_ATTRIBUTES for directory entries. Being able to stat() a
1559 * file implies FILE_LIST_DIRECTORY for the directory containing the
1560 * file.
1561 */
1562
1563 if (!VALID_STAT(smb_fname->st)) {
1564 /*
1565 * Safety net: dos_mode() already checks this, but as we set
1566 * DAC_OVERRIDE_CAPABILITY based on this, add an additional
1567 * layer of defense.
1568 */
1569 DBG_ERR("Rejecting DAC override, invalid stat [%s]\n",
1570 smb_fname_str_dbg(smb_fname));
1571 errno = EACCES;
1572 return -1;
1573 }
1574
1575 set_effective_capability(DAC_OVERRIDE_CAPABILITY);
1576
1577 ret = gpfswrap_get_winattrs_path(smb_fname->base_name, attr);
1578 if (ret == -1) {
1579 saved_errno = errno;
1580 }
1581
1582 drop_effective_capability(DAC_OVERRIDE_CAPABILITY);
1583
1584 if (saved_errno != 0) {
1585 errno = saved_errno;
1586 }
1587 return ret;
1588 }
1589
1590 static NTSTATUS vfs_gpfs_get_dos_attributes(struct vfs_handle_struct *handle,
1591 struct smb_filename *smb_fname,
1592 uint32_t *dosmode)
1593 {
1594 struct gpfs_config_data *config;
1595 struct gpfs_winattr attrs = { };
1596 int ret;
1597
1598 SMB_VFS_HANDLE_GET_DATA(handle, config,
1599 struct gpfs_config_data,
1600 return NT_STATUS_INTERNAL_ERROR);
1601
1602 if (!config->winattr) {
1603 return SMB_VFS_NEXT_GET_DOS_ATTRIBUTES(handle,
1604 smb_fname, dosmode);
1605 }
1606
1607 ret = gpfswrap_get_winattrs_path(smb_fname->base_name, &attrs);
1608 if (ret == -1 && errno == ENOSYS) {
1609 return SMB_VFS_NEXT_GET_DOS_ATTRIBUTES(handle, smb_fname,
1610 dosmode);
1611 }
1612 if (ret == -1 && errno == EACCES) {
1613 ret = get_dos_attr_with_capability(smb_fname, &attrs);
1614 }
1615 if (ret == -1) {
1616 DBG_WARNING("Getting winattrs failed for %s: %s\n",
1617 smb_fname->base_name, strerror(errno));
1618 return map_nt_error_from_unix(errno);
1619 }
1620
1621 *dosmode |= vfs_gpfs_winattrs_to_dosmode(attrs.winAttrs);
1622 smb_fname->st.st_ex_calculated_birthtime = false;
1623 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1624 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1625
1626 return NT_STATUS_OK;
1627 }
1628
1629 static NTSTATUS vfs_gpfs_fget_dos_attributes(struct vfs_handle_struct *handle,
1630 struct files_struct *fsp,
1631 uint32_t *dosmode)
1632 {
1633 struct gpfs_config_data *config;
1634 struct gpfs_winattr attrs = { };
1635 int ret;
1636
1637 SMB_VFS_HANDLE_GET_DATA(handle, config,
1638 struct gpfs_config_data,
1639 return NT_STATUS_INTERNAL_ERROR);
1640
1641 if (!config->winattr) {
1642 return SMB_VFS_NEXT_FGET_DOS_ATTRIBUTES(handle, fsp, dosmode);
1643 }
1644
1645 ret = gpfswrap_get_winattrs(fsp->fh->fd, &attrs);
1646 if (ret == -1 && errno == ENOSYS) {
1647 return SMB_VFS_NEXT_FGET_DOS_ATTRIBUTES(handle, fsp, dosmode);
1648 }
1649
1650 if (ret == -1 && errno == EACCES) {
1651 int saved_errno = 0;
1652
1653 /*
1654 * According to MS-FSA 2.1.5.1.2.1 "Algorithm to Check Access to
1655 * an Existing File" FILE_LIST_DIRECTORY on a directory implies
1656 * FILE_READ_ATTRIBUTES for directory entries. Being able to
1657 * open a file implies FILE_LIST_DIRECTORY.
1658 */
1659
1660 set_effective_capability(DAC_OVERRIDE_CAPABILITY);
1661
1662 ret = gpfswrap_get_winattrs(fsp->fh->fd, &attrs);
1663 if (ret == -1) {
1664 saved_errno = errno;
1665 }
1666
1667 drop_effective_capability(DAC_OVERRIDE_CAPABILITY);
1668
1669 if (saved_errno != 0) {
1670 errno = saved_errno;
1671 }
1672 }
1673
1674 if (ret == -1) {
1675 DBG_WARNING("Getting winattrs failed for %s: %s\n",
1676 fsp->fsp_name->base_name, strerror(errno));
1677 return map_nt_error_from_unix(errno);
1678 }
1679
1680 *dosmode |= vfs_gpfs_winattrs_to_dosmode(attrs.winAttrs);
1681 fsp->fsp_name->st.st_ex_calculated_birthtime = false;
1682 fsp->fsp_name->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1683 fsp->fsp_name->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1684
1685 return NT_STATUS_OK;
1686 }
1687
1688 static NTSTATUS vfs_gpfs_set_dos_attributes(struct vfs_handle_struct *handle,
1689 const struct smb_filename *smb_fname,
1690 uint32_t dosmode)
1691 {
1692 struct gpfs_config_data *config;
1693 struct gpfs_winattr attrs = { };
1694 int ret;
1695
1696 SMB_VFS_HANDLE_GET_DATA(handle, config,
1697 struct gpfs_config_data,
1698 return NT_STATUS_INTERNAL_ERROR);
1699
1700 if (!config->winattr) {
1701 return SMB_VFS_NEXT_SET_DOS_ATTRIBUTES(handle,
1702 smb_fname, dosmode);
1703 }
1704
1705 attrs.winAttrs = vfs_gpfs_dosmode_to_winattrs(dosmode);
1706 ret = gpfswrap_set_winattrs_path(smb_fname->base_name,
1707 GPFS_WINATTR_SET_ATTRS, &attrs);
1708
1709 if (ret == -1 && errno == ENOSYS) {
1710 return SMB_VFS_NEXT_SET_DOS_ATTRIBUTES(handle,
1711 smb_fname, dosmode);
1712 }
1713
1714 if (ret == -1) {
1715 DBG_WARNING("Setting winattrs failed for %s: %s\n",
1716 smb_fname->base_name, strerror(errno));
1717 return map_nt_error_from_unix(errno);
1718 }
1719
1720 return NT_STATUS_OK;
1721 }
1722
1723 static NTSTATUS vfs_gpfs_fset_dos_attributes(struct vfs_handle_struct *handle,
1724 struct files_struct *fsp,
1725 uint32_t dosmode)
1726 {
1727 struct gpfs_config_data *config;
1728 struct gpfs_winattr attrs = { };
1729 int ret;
1730
1731 SMB_VFS_HANDLE_GET_DATA(handle, config,
1732 struct gpfs_config_data,
1733 return NT_STATUS_INTERNAL_ERROR);
1734
1735 if (!config->winattr) {
1736 return SMB_VFS_NEXT_FSET_DOS_ATTRIBUTES(handle, fsp, dosmode);
1737 }
1738
1739 attrs.winAttrs = vfs_gpfs_dosmode_to_winattrs(dosmode);
1740 ret = gpfswrap_set_winattrs(fsp->fh->fd,
1741 GPFS_WINATTR_SET_ATTRS, &attrs);
1742
1743 if (ret == -1 && errno == ENOSYS) {
1744 return SMB_VFS_NEXT_FSET_DOS_ATTRIBUTES(handle, fsp, dosmode);
1745 }
1746
1747 if (ret == -1) {
1748 DBG_WARNING("Setting winattrs failed for %s: %s\n",
1749 fsp->fsp_name->base_name, strerror(errno));
1750 return map_nt_error_from_unix(errno);
1751 }
1752
1753 return NT_STATUS_OK;
1754 }
1755
1756 static int stat_with_capability(struct vfs_handle_struct *handle,
1757 struct smb_filename *smb_fname, int flag)
1758 {
1759 #if defined(HAVE_FSTATAT)
1760 int fd = -1;
1761 bool b;
1762 char *dir_name;
1763 const char *rel_name = NULL;
1764 struct stat st;
1765 int ret = -1;
1766
1767 b = parent_dirname(talloc_tos(), smb_fname->base_name,
1768 &dir_name, &rel_name);
1769 if (!b) {
1770 errno = ENOMEM;
1771 return -1;
1772 }
1773
1774 fd = open(dir_name, O_RDONLY, 0);
1775 TALLOC_FREE(dir_name);
1776 if (fd == -1) {
1777 return -1;
1778 }
1779
1780 set_effective_capability(DAC_OVERRIDE_CAPABILITY);
1781 ret = fstatat(fd, rel_name, &st, flag);
1782 drop_effective_capability(DAC_OVERRIDE_CAPABILITY);
1783
1784 close(fd);
1785
1786 if (ret == 0) {
1787 init_stat_ex_from_stat(
1788 &smb_fname->st, &st,
1789 lp_fake_directory_create_times(SNUM(handle->conn)));
1790 }
1791
1792 return ret;
1793 #else
1794 return -1;
1795 #endif
1796 }
1797
1798 static int vfs_gpfs_stat(struct vfs_handle_struct *handle,
1799 struct smb_filename *smb_fname)
1800 {
1801 int ret;
1802 struct gpfs_config_data *config;
1803
1804 SMB_VFS_HANDLE_GET_DATA(handle, config,
1805 struct gpfs_config_data,
1806 return -1);
1807
1808 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
1809 if (ret == -1 && errno == EACCES) {
1810 DEBUG(10, ("Trying stat with capability for %s\n",
1811 smb_fname->base_name));
1812 ret = stat_with_capability(handle, smb_fname, 0);
1813 }
1814 return ret;
1815 }
1816
1817 static int vfs_gpfs_lstat(struct vfs_handle_struct *handle,
1818 struct smb_filename *smb_fname)
1819 {
1820 int ret;
1821 struct gpfs_config_data *config;
1822
1823 SMB_VFS_HANDLE_GET_DATA(handle, config,
1824 struct gpfs_config_data,
1825 return -1);
1826
1827 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1828 if (ret == -1 && errno == EACCES) {
1829 DEBUG(10, ("Trying lstat with capability for %s\n",
1830 smb_fname->base_name));
1831 ret = stat_with_capability(handle, smb_fname,
1832 AT_SYMLINK_NOFOLLOW);
1833 }
1834 return ret;
1835 }
1836
1837 static void timespec_to_gpfs_time(struct timespec ts, gpfs_timestruc_t *gt,
1838 int idx, int *flags)
1839 {
1840 if (!null_timespec(ts)) {
1841 *flags |= 1 << idx;
1842 gt[idx].tv_sec = ts.tv_sec;
1843 gt[idx].tv_nsec = ts.tv_nsec;
1844 DEBUG(10, ("Setting GPFS time %d, flags 0x%x\n", idx, *flags));
1845 }
1846 }
1847
1848 static int smbd_gpfs_set_times_path(char *path, struct smb_file_time *ft)
1849 {
1850 gpfs_timestruc_t gpfs_times[4];
1851 int flags = 0;
1852 int rc;
1853
1854 ZERO_ARRAY(gpfs_times);
1855 timespec_to_gpfs_time(ft->atime, gpfs_times, 0, &flags);
1856 timespec_to_gpfs_time(ft->mtime, gpfs_times, 1, &flags);
1857 /* No good mapping from LastChangeTime to ctime, not storing */
1858 timespec_to_gpfs_time(ft->create_time, gpfs_times, 3, &flags);
1859
1860 if (!flags) {
1861 DEBUG(10, ("nothing to do, return to avoid EINVAL\n"));
1862 return 0;
1863 }
1864
1865 rc = gpfswrap_set_times_path(path, flags, gpfs_times);
1866
1867 if (rc != 0 && errno != ENOSYS) {
1868 DEBUG(1,("gpfs_set_times() returned with error %s\n",
1869 strerror(errno)));
1870 }
1871
1872 return rc;
1873 }
1874
1875 static int vfs_gpfs_ntimes(struct vfs_handle_struct *handle,
1876 const struct smb_filename *smb_fname,
1877 struct smb_file_time *ft)
1878 {
1879
1880 struct gpfs_winattr attrs;
1881 int ret;
1882 char *path = NULL;
1883 NTSTATUS status;
1884 struct gpfs_config_data *config;
1885
1886 SMB_VFS_HANDLE_GET_DATA(handle, config,
1887 struct gpfs_config_data,
1888 return -1);
1889
1890 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1891 if (!NT_STATUS_IS_OK(status)) {
1892 errno = map_errno_from_nt_status(status);
1893 return -1;
1894 }
1895
1896 /* Try to use gpfs_set_times if it is enabled and available */
1897 if (config->settimes) {
1898 ret = smbd_gpfs_set_times_path(path, ft);
1899
1900 if (ret == 0 || (ret == -1 && errno != ENOSYS)) {
1901 return ret;
1902 }
1903 }
1904
1905 DEBUG(10,("gpfs_set_times() not available or disabled, "
1906 "use ntimes and winattr\n"));
1907
1908 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1909 if(ret == -1){
1910 /* don't complain if access was denied */
1911 if (errno != EPERM && errno != EACCES) {
1912 DEBUG(1,("vfs_gpfs_ntimes: SMB_VFS_NEXT_NTIMES failed:"
1913 "%s", strerror(errno)));
1914 }
1915 return -1;
1916 }
1917
1918 if(null_timespec(ft->create_time)){
1919 DEBUG(10,("vfs_gpfs_ntimes:Create Time is NULL\n"));
1920 return 0;
1921 }
1922
1923 if (!config->winattr) {
1924 return 0;
1925 }
1926
1927 attrs.winAttrs = 0;
1928 attrs.creationTime.tv_sec = ft->create_time.tv_sec;
1929 attrs.creationTime.tv_nsec = ft->create_time.tv_nsec;
1930
1931 ret = gpfswrap_set_winattrs_path(discard_const_p(char, path),
1932 GPFS_WINATTR_SET_CREATION_TIME,
1933 &attrs);
1934 if(ret == -1 && errno != ENOSYS){
1935 DEBUG(1,("vfs_gpfs_ntimes: set GPFS ntimes failed %d\n",ret));
1936 return -1;
1937 }
1938 return 0;
1939
1940 }
1941
1942 static int vfs_gpfs_fallocate(struct vfs_handle_struct *handle,
1943 struct files_struct *fsp, uint32_t mode,
1944 off_t offset, off_t len)
1945 {
1946 int ret;
1947 struct gpfs_config_data *config;
1948
1949 SMB_VFS_HANDLE_GET_DATA(handle, config,
1950 struct gpfs_config_data,
1951 return -1);
1952
1953 if (!config->prealloc) {
1954 /* you should better not run fallocate() on GPFS at all */
1955 errno = ENOTSUP;
1956 return -1;
1957 }
1958
1959 if (mode != 0) {
1960 DEBUG(10, ("unmapped fallocate flags: %lx\n",
1961 (unsigned long)mode));
1962 errno = ENOTSUP;
1963 return -1;
1964 }
1965
1966 ret = gpfswrap_prealloc(fsp->fh->fd, offset, len);
1967
1968 if (ret == -1 && errno != ENOSYS) {
1969 DEBUG(0, ("GPFS prealloc failed: %s\n", strerror(errno)));
1970 } else if (ret == -1 && errno == ENOSYS) {
1971 DEBUG(10, ("GPFS prealloc not supported.\n"));
1972 } else {
1973 DEBUG(10, ("GPFS prealloc succeeded.\n"));
1974 }
1975
1976 return ret;
1977 }
1978
1979 static int vfs_gpfs_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1980 off_t len)
1981 {
1982 int result;
1983 struct gpfs_config_data *config;
1984
1985 SMB_VFS_HANDLE_GET_DATA(handle, config,
1986 struct gpfs_config_data,
1987 return -1);
1988
1989 if (!config->ftruncate) {
1990 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1991 }
1992
1993 result = gpfswrap_ftruncate(fsp->fh->fd, len);
1994 if ((result == -1) && (errno == ENOSYS)) {
1995 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1996 }
1997 return result;
1998 }
1999
2000 static bool vfs_gpfs_is_offline(struct vfs_handle_struct *handle,
2001 const struct smb_filename *fname,
2002 SMB_STRUCT_STAT *sbuf)
2003 {
2004 struct gpfs_winattr attrs;
2005 char *path = NULL;
2006 NTSTATUS status;
2007 struct gpfs_config_data *config;
2008 int ret;
2009
2010 SMB_VFS_HANDLE_GET_DATA(handle, config,
2011 struct gpfs_config_data,
2012 return -1);
2013
2014 if (!config->winattr) {
2015 return false;
2016 }
2017
2018 status = get_full_smb_filename(talloc_tos(), fname, &path);
2019 if (!NT_STATUS_IS_OK(status)) {
2020 return false;
2021 }
2022
2023 ret = gpfswrap_get_winattrs_path(path, &attrs);
2024 if (ret == -1) {
2025 TALLOC_FREE(path);
2026 return false;
2027 }
2028
2029 if ((attrs.winAttrs & GPFS_WINATTR_OFFLINE) != 0) {
2030 DEBUG(10, ("%s is offline\n", path));
2031 TALLOC_FREE(path);
2032 return true;
2033 }
2034 DEBUG(10, ("%s is online\n", path));
2035 TALLOC_FREE(path);
2036 return false;
2037 }
2038
2039 static bool vfs_gpfs_fsp_is_offline(struct vfs_handle_struct *handle,
2040 struct files_struct *fsp)
2041 {
2042 struct gpfs_fsp_extension *ext;
2043
2044 ext = VFS_FETCH_FSP_EXTENSION(handle, fsp);
2045 if (ext == NULL) {
2046 /*
2047 * Something bad happened, always ask.
2048 */
2049 return vfs_gpfs_is_offline(handle, fsp->fsp_name,
2050 &fsp->fsp_name->st);
2051 }
2052
2053 if (ext->offline) {
2054 /*
2055 * As long as it's offline, ask.
2056 */
2057 ext->offline = vfs_gpfs_is_offline(handle, fsp->fsp_name,
2058 &fsp->fsp_name->st);
2059 }
2060
2061 return ext->offline;
2062 }
2063
2064 static bool vfs_gpfs_aio_force(struct vfs_handle_struct *handle,
2065 struct files_struct *fsp)
2066 {
2067 return vfs_gpfs_fsp_is_offline(handle, fsp);
2068 }
2069
2070 static ssize_t vfs_gpfs_sendfile(vfs_handle_struct *handle, int tofd,
2071 files_struct *fsp, const DATA_BLOB *hdr,
2072 off_t offset, size_t n)
2073 {
2074 if (vfs_gpfs_fsp_is_offline(handle, fsp)) {
2075 errno = ENOSYS;
2076 return -1;
2077 }
2078 return SMB_VFS_NEXT_SENDFILE(handle, tofd, fsp, hdr, offset, n);
2079 }
2080
2081 static int vfs_gpfs_connect(struct vfs_handle_struct *handle,
2082 const char *service, const char *user)
2083 {
2084 struct gpfs_config_data *config;
2085 int ret;
2086
2087 gpfswrap_lib_init(0);
2088
2089 config = talloc_zero(handle->conn, struct gpfs_config_data);
2090 if (!config) {
2091 DEBUG(0, ("talloc_zero() failed\n"));
2092 errno = ENOMEM;
2093 return -1;
2094 }
2095
2096 ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
2097 if (ret < 0) {
2098 TALLOC_FREE(config);
2099 return ret;
2100 }
2101
2102 ret = smbacl4_get_vfs_params(handle->conn, &config->nfs4_params);
2103 if (ret < 0) {
2104 TALLOC_FREE(config);
2105 return ret;
2106 }
2107
2108 config->sharemodes = lp_parm_bool(SNUM(handle->conn), "gpfs",
2109 "sharemodes", true);
2110
2111 config->leases = lp_parm_bool(SNUM(handle->conn), "gpfs",
2112 "leases", true);
2113
2114 config->hsm = lp_parm_bool(SNUM(handle->conn), "gpfs",
2115 "hsm", false);
2116
2117 config->syncio = lp_parm_bool(SNUM(handle->conn), "gpfs",
2118 "syncio", false);
2119
2120 config->winattr = lp_parm_bool(SNUM(handle->conn), "gpfs",
2121 "winattr", false);
2122
2123 config->ftruncate = lp_parm_bool(SNUM(handle->conn), "gpfs",
2124 "ftruncate", true);
2125
2126 config->getrealfilename = lp_parm_bool(SNUM(handle->conn), "gpfs",
2127 "getrealfilename", true);
2128
2129 config->dfreequota = lp_parm_bool(SNUM(handle->conn), "gpfs",
2130 "dfreequota", false);
2131
2132 config->prealloc = lp_parm_bool(SNUM(handle->conn), "gpfs",
2133 "prealloc", true);
2134
2135 config->acl = lp_parm_bool(SNUM(handle->conn), "gpfs", "acl", true);
2136
2137 config->settimes = lp_parm_bool(SNUM(handle->conn), "gpfs",
2138 "settimes", true);
2139 config->recalls = lp_parm_bool(SNUM(handle->conn), "gpfs",
2140 "recalls", true);
2141
2142 SMB_VFS_HANDLE_SET_DATA(handle, config,
2143 NULL, struct gpfs_config_data,
2144 return -1);
2145
2146 if (config->leases) {
2147 /*
2148 * GPFS lease code is based on kernel oplock code
2149 * so make sure it is turned on
2150 */
2151 if (!lp_kernel_oplocks(SNUM(handle->conn))) {
2152 DEBUG(5, ("Enabling kernel oplocks for "
2153 "gpfs:leases to work\n"));
2154 lp_do_parameter(SNUM(handle->conn), "kernel oplocks",
2155 "true");
2156 }
2157
2158 /*
2159 * as the kernel does not properly support Level II oplocks
2160 * and GPFS leases code is based on kernel infrastructure, we
2161 * need to turn off Level II oplocks if gpfs:leases is enabled
2162 */
2163 if (lp_level2_oplocks(SNUM(handle->conn))) {
2164 DEBUG(5, ("gpfs:leases are enabled, disabling "
2165 "Level II oplocks\n"));
2166 lp_do_parameter(SNUM(handle->conn), "level2 oplocks",
2167 "false");
2168 }
2169 }
2170
2171 return 0;
2172 }
2173
2174 static int get_gpfs_quota(const char *pathname, int type, int id,
2175 struct gpfs_quotaInfo *qi)
2176 {
2177 int ret;
2178
2179 ret = gpfswrap_quotactl(discard_const_p(char, pathname),
2180 GPFS_QCMD(Q_GETQUOTA, type), id, qi);
2181
2182 if (ret) {
2183 if (errno == GPFS_E_NO_QUOTA_INST) {
2184 DEBUG(10, ("Quotas disabled on GPFS filesystem.\n"));
2185 } else if (errno != ENOSYS) {
2186 DEBUG(0, ("Get quota failed, type %d, id, %d, "
2187 "errno %d.\n", type, id, errno));
2188 }
2189
2190 return ret;
2191 }
2192
2193 DEBUG(10, ("quota type %d, id %d, blk u:%lld h:%lld s:%lld gt:%u\n",
2194 type, id, qi->blockUsage, qi->blockHardLimit,
2195 qi->blockSoftLimit, qi->blockGraceTime));
2196
2197 return ret;
2198 }
2199
2200 static void vfs_gpfs_disk_free_quota(struct gpfs_quotaInfo qi, time_t cur_time,
2201 uint64_t *dfree, uint64_t *dsize)
2202 {
2203 uint64_t usage, limit;
2204
2205 /*
2206 * The quota reporting is done in units of 1024 byte blocks, but
2207 * sys_fsusage uses units of 512 byte blocks, adjust the block number
2208 * accordingly. Also filter possibly negative usage counts from gpfs.
2209 */
2210 usage = qi.blockUsage < 0 ? 0 : (uint64_t)qi.blockUsage * 2;
2211 limit = (uint64_t)qi.blockHardLimit * 2;
2212
2213 /*
2214 * When the grace time for the exceeded soft block quota has been
2215 * exceeded, the soft block quota becomes an additional hard limit.
2216 */
2217 if (qi.blockSoftLimit &&
2218 qi.blockGraceTime && cur_time > qi.blockGraceTime) {
2219 /* report disk as full */
2220 *dfree = 0;
2221 *dsize = MIN(*dsize, usage);
2222 }
2223
2224 if (!qi.blockHardLimit)
2225 return;
2226
2227 if (usage >= limit) {
2228 /* report disk as full */
2229 *dfree = 0;
2230 *dsize = MIN(*dsize, usage);
2231
2232 } else {
2233 /* limit has not been reached, determine "free space" */
2234 *dfree = MIN(*dfree, limit - usage);
2235 *dsize = MIN(*dsize, limit);
2236 }
2237 }
2238
2239 static uint64_t vfs_gpfs_disk_free(vfs_handle_struct *handle,
2240 const struct smb_filename *smb_fname,
2241 uint64_t *bsize,
2242 uint64_t *dfree,
2243 uint64_t *dsize)
2244 {
2245 struct security_unix_token *utok;
2246 struct gpfs_quotaInfo qi_user = { 0 }, qi_group = { 0 };
2247 struct gpfs_config_data *config;
2248 int err;
2249 time_t cur_time;
2250
2251 SMB_VFS_HANDLE_GET_DATA(handle, config, struct gpfs_config_data,
2252 return (uint64_t)-1);
2253 if (!config->dfreequota) {
2254 return SMB_VFS_NEXT_DISK_FREE(handle, smb_fname,
2255 bsize, dfree, dsize);
2256 }
2257
2258 err = sys_fsusage(smb_fname->base_name, dfree, dsize);
2259 if (err) {
2260 DEBUG (0, ("Could not get fs usage, errno %d\n", errno));
2261 return SMB_VFS_NEXT_DISK_FREE(handle, smb_fname,
2262 bsize, dfree, dsize);
2263 }
2264
2265 /* sys_fsusage returns units of 512 bytes */
2266 *bsize = 512;
2267
2268 DEBUG(10, ("fs dfree %llu, dsize %llu\n",
2269 (unsigned long long)*dfree, (unsigned long long)*dsize));
2270
2271 utok = handle->conn->session_info->unix_token;
2272
2273 err = get_gpfs_quota(smb_fname->base_name,
2274 GPFS_USRQUOTA, utok->uid, &qi_user);
2275 if (err) {
2276 return SMB_VFS_NEXT_DISK_FREE(handle, smb_fname,
2277 bsize, dfree, dsize);
2278 }
2279
2280 err = get_gpfs_quota(smb_fname->base_name,
2281 GPFS_GRPQUOTA, utok->gid, &qi_group);
2282 if (err) {
2283 return SMB_VFS_NEXT_DISK_FREE(handle, smb_fname,
2284 bsize, dfree, dsize);
2285 }
2286
2287 cur_time = time(NULL);
2288
2289 /* Adjust free space and size according to quota limits. */
2290 vfs_gpfs_disk_free_quota(qi_user, cur_time, dfree, dsize);
2291 vfs_gpfs_disk_free_quota(qi_group, cur_time, dfree, dsize);
2292
2293 return *dfree / 2;
2294 }
2295
2296 static int vfs_gpfs_get_quota(vfs_handle_struct *handle,
2297 const struct smb_filename *smb_fname,
2298 enum SMB_QUOTA_TYPE qtype,
2299 unid_t id,
2300 SMB_DISK_QUOTA *dq)
2301 {
2302 switch(qtype) {
2303 /*
2304 * User/group quota are being used for disk-free
2305 * determination, which in this module is done directly
2306 * by the disk-free function. It's important that this
2307 * module does not return wrong quota values by mistake,
2308 * which would modify the correct values set by disk-free.
2309 * User/group quota are also being used for processing
2310 * NT_TRANSACT_GET_USER_QUOTA in smb1 protocol, which is
2311 * currently not supported by this module.
2312 */
2313 case SMB_USER_QUOTA_TYPE:
2314 case SMB_GROUP_QUOTA_TYPE:
2315 errno = ENOSYS;
2316 return -1;
2317 default:
2318 return SMB_VFS_NEXT_GET_QUOTA(handle, smb_fname,
2319 qtype, id, dq);
2320 }
2321 }
2322
2323 static uint32_t vfs_gpfs_capabilities(struct vfs_handle_struct *handle,
2324 enum timestamp_set_resolution *p_ts_res)
2325 {
2326 struct gpfs_config_data *config;
2327 uint32_t next;
2328
2329 next = SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
2330
2331 SMB_VFS_HANDLE_GET_DATA(handle, config,
2332 struct gpfs_config_data,
2333 return next);
2334
2335 if (config->hsm) {
2336 next |= FILE_SUPPORTS_REMOTE_STORAGE;
2337 }
2338 return next;
2339 }
2340
2341 static int vfs_gpfs_open(struct vfs_handle_struct *handle,
2342 struct smb_filename *smb_fname, files_struct *fsp,
2343 int flags, mode_t mode)
2344 {
2345 struct gpfs_config_data *config;
2346 int ret;
2347 struct gpfs_fsp_extension *ext;
2348
2349 SMB_VFS_HANDLE_GET_DATA(handle, config,
2350 struct gpfs_config_data,
2351 return -1);
2352
2353 if (config->hsm && !config->recalls &&
2354 vfs_gpfs_fsp_is_offline(handle, fsp)) {
2355 DEBUG(10, ("Refusing access to offline file %s\n",
2356 fsp_str_dbg(fsp)));
2357 errno = EACCES;
2358 return -1;
2359 }
2360
2361 if (config->syncio) {
2362 flags |= O_SYNC;
2363 }
2364
2365 ext = VFS_ADD_FSP_EXTENSION(handle, fsp, struct gpfs_fsp_extension,
2366 NULL);
2367 if (ext == NULL) {
2368 errno = ENOMEM;
2369 return -1;
2370 }
2371
2372 /*
2373 * Assume the file is offline until gpfs tells us it's online.
2374 */
2375 *ext = (struct gpfs_fsp_extension) { .offline = true };
2376
2377 ret = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
2378 if (ret == -1) {
2379 VFS_REMOVE_FSP_EXTENSION(handle, fsp);
2380 }
2381 return ret;
2382 }
2383
2384 static ssize_t vfs_gpfs_pread(vfs_handle_struct *handle, files_struct *fsp,
2385 void *data, size_t n, off_t offset)
2386 {
2387 ssize_t ret;
2388 bool was_offline;
2389
2390 was_offline = vfs_gpfs_fsp_is_offline(handle, fsp);
2391
2392 ret = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2393
2394 if ((ret != -1) && was_offline) {
2395 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
2396 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2397 fsp->fsp_name->base_name);
2398 }
2399
2400 return ret;
2401 }
2402
2403 struct vfs_gpfs_pread_state {
2404 struct files_struct *fsp;
2405 ssize_t ret;
2406 bool was_offline;
2407 struct vfs_aio_state vfs_aio_state;
2408 };
2409
2410 static void vfs_gpfs_pread_done(struct tevent_req *subreq);
2411
2412 static struct tevent_req *vfs_gpfs_pread_send(struct vfs_handle_struct *handle,
2413 TALLOC_CTX *mem_ctx,
2414 struct tevent_context *ev,
2415 struct files_struct *fsp,
2416 void *data, size_t n,
2417 off_t offset)
2418 {
2419 struct tevent_req *req, *subreq;
2420 struct vfs_gpfs_pread_state *state;
2421
2422 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pread_state);
2423 if (req == NULL) {
2424 return NULL;
2425 }
2426 state->was_offline = vfs_gpfs_fsp_is_offline(handle, fsp);
2427 state->fsp = fsp;
2428 subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
2429 n, offset);
2430 if (tevent_req_nomem(subreq, req)) {
2431 return tevent_req_post(req, ev);
2432 }
2433 tevent_req_set_callback(subreq, vfs_gpfs_pread_done, req);
2434 return req;
2435 }
2436
2437 static void vfs_gpfs_pread_done(struct tevent_req *subreq)
2438 {
2439 struct tevent_req *req = tevent_req_callback_data(
2440 subreq, struct tevent_req);
2441 struct vfs_gpfs_pread_state *state = tevent_req_data(
2442 req, struct vfs_gpfs_pread_state);
2443
2444 state->ret = SMB_VFS_PREAD_RECV(subreq, &state->vfs_aio_state);
2445 TALLOC_FREE(subreq);
2446 tevent_req_done(req);
2447 }
2448
2449 static ssize_t vfs_gpfs_pread_recv(struct tevent_req *req,
2450 struct vfs_aio_state *vfs_aio_state)
2451 {
2452 struct vfs_gpfs_pread_state *state = tevent_req_data(
2453 req, struct vfs_gpfs_pread_state);
2454 struct files_struct *fsp = state->fsp;
2455
2456 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
2457 return -1;
2458 }
2459 *vfs_aio_state = state->vfs_aio_state;
2460
2461 if ((state->ret != -1) && state->was_offline) {
2462 DEBUG(10, ("sending notify\n"));
2463 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
2464 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2465 fsp->fsp_name->base_name);
2466 }
2467
2468 return state->ret;
2469 }
2470
2471 static ssize_t vfs_gpfs_pwrite(vfs_handle_struct *handle, files_struct *fsp,
2472 const void *data, size_t n, off_t offset)
2473 {
2474 ssize_t ret;
2475 bool was_offline;
2476
2477 was_offline = vfs_gpfs_fsp_is_offline(handle, fsp);
2478
2479 ret = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2480
2481 if ((ret != -1) && was_offline) {
2482 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
2483 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2484 fsp->fsp_name->base_name);
2485 }
2486
2487 return ret;
2488 }
2489
2490 struct vfs_gpfs_pwrite_state {
2491 struct files_struct *fsp;
2492 ssize_t ret;
2493 bool was_offline;
2494 struct vfs_aio_state vfs_aio_state;
2495 };
2496
2497 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq);
2498
2499 static struct tevent_req *vfs_gpfs_pwrite_send(
2500 struct vfs_handle_struct *handle,
2501 TALLOC_CTX *mem_ctx,
2502 struct tevent_context *ev,
2503 struct files_struct *fsp,
2504 const void *data, size_t n,
2505 off_t offset)
2506 {
2507 struct tevent_req *req, *subreq;
2508 struct vfs_gpfs_pwrite_state *state;
2509
2510 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pwrite_state);
2511 if (req == NULL) {
2512 return NULL;
2513 }
2514 state->was_offline = vfs_gpfs_fsp_is_offline(handle, fsp);
2515 state->fsp = fsp;
2516 subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
2517 n, offset);
2518 if (tevent_req_nomem(subreq, req)) {
2519 return tevent_req_post(req, ev);
2520 }
2521 tevent_req_set_callback(subreq, vfs_gpfs_pwrite_done, req);
2522 return req;
2523 }
2524
2525 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq)
2526 {
2527 struct tevent_req *req = tevent_req_callback_data(
2528 subreq, struct tevent_req);
2529 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
2530 req, struct vfs_gpfs_pwrite_state);
2531
2532 state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->vfs_aio_state);
2533 TALLOC_FREE(subreq);
2534 tevent_req_done(req);
2535 }
2536
2537 static ssize_t vfs_gpfs_pwrite_recv(struct tevent_req *req,
2538 struct vfs_aio_state *vfs_aio_state)
2539 {
2540 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
2541 req, struct vfs_gpfs_pwrite_state);
2542 struct files_struct *fsp = state->fsp;
2543
2544 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
2545 return -1;
2546 }
2547 *vfs_aio_state = state->vfs_aio_state;
2548
2549 if ((state->ret != -1) && state->was_offline) {
2550 DEBUG(10, ("sending notify\n"));
2551 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
2552 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2553 fsp->fsp_name->base_name);
2554 }
2555
2556 return state->ret;
2557 }
2558
2559
2560 static struct vfs_fn_pointers vfs_gpfs_fns = {
2561 .connect_fn = vfs_gpfs_connect,
2562 .disk_free_fn = vfs_gpfs_disk_free,
2563 .get_quota_fn = vfs_gpfs_get_quota,
2564 .fs_capabilities_fn = vfs_gpfs_capabilities,
2565 .kernel_flock_fn = vfs_gpfs_kernel_flock,
2566 .linux_setlease_fn = vfs_gpfs_setlease,
2567 .get_real_filename_fn = vfs_gpfs_get_real_filename,
2568 .get_dos_attributes_fn = vfs_gpfs_get_dos_attributes,
2569 .fget_dos_attributes_fn = vfs_gpfs_fget_dos_attributes,
2570 .set_dos_attributes_fn = vfs_gpfs_set_dos_attributes,
2571 .fset_dos_attributes_fn = vfs_gpfs_fset_dos_attributes,
2572 .fget_nt_acl_fn = gpfsacl_fget_nt_acl,
2573 .get_nt_acl_fn = gpfsacl_get_nt_acl,
2574 .fset_nt_acl_fn = gpfsacl_fset_nt_acl,
2575 .sys_acl_get_file_fn = gpfsacl_sys_acl_get_file,
2576 .sys_acl_get_fd_fn = gpfsacl_sys_acl_get_fd,
2577 .sys_acl_blob_get_file_fn = gpfsacl_sys_acl_blob_get_file,
2578 .sys_acl_blob_get_fd_fn = gpfsacl_sys_acl_blob_get_fd,
2579 .sys_acl_set_file_fn = gpfsacl_sys_acl_set_file,
2580 .sys_acl_set_fd_fn = gpfsacl_sys_acl_set_fd,
2581 .sys_acl_delete_def_file_fn = gpfsacl_sys_acl_delete_def_file,
2582 .chmod_fn = vfs_gpfs_chmod,
2583 .fchmod_fn = vfs_gpfs_fchmod,
2584 .close_fn = vfs_gpfs_close,
2585 .stat_fn = vfs_gpfs_stat,
2586 .lstat_fn = vfs_gpfs_lstat,
2587 .ntimes_fn = vfs_gpfs_ntimes,
2588 .aio_force_fn = vfs_gpfs_aio_force,
2589 .sendfile_fn = vfs_gpfs_sendfile,
2590 .fallocate_fn = vfs_gpfs_fallocate,
2591 .open_fn = vfs_gpfs_open,
2592 .pread_fn = vfs_gpfs_pread,
2593 .pread_send_fn = vfs_gpfs_pread_send,
2594 .pread_recv_fn = vfs_gpfs_pread_recv,
2595 .pwrite_fn = vfs_gpfs_pwrite,
2596 .pwrite_send_fn = vfs_gpfs_pwrite_send,
2597 .pwrite_recv_fn = vfs_gpfs_pwrite_recv,
2598 .ftruncate_fn = vfs_gpfs_ftruncate
2599 };
2600
2601 static_decl_vfs;
2602 NTSTATUS vfs_gpfs_init(TALLOC_CTX *ctx)
2603 {
2604 int ret;
2605
2606 ret = gpfswrap_init();
2607 if (ret != 0) {
2608 DEBUG(1, ("Could not initialize GPFS library wrapper\n"));
2609 }
2610
2611 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
2612 &vfs_gpfs_fns);
2613 }
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