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s3:vfs_gpfs:Fix query of creation time from GPFS
[Samba.git] / source3 / modules / vfs_gpfs.c
blobbf47ee52f21dda56539788caab608d2f36e13b64
1 /*
2 Unix SMB/CIFS implementation.
3 Wrap gpfs calls in vfs functions.
4
5 Copyright (C) Christian Ambach <cambach1@de.ibm.com> 2006
6
7 Major code contributions by Chetan Shringarpure <chetan.sh@in.ibm.com>
8 and Gomati Mohanan <gomati.mohanan@in.ibm.com>
9
10 This program is free software; you can redistribute it and/or modify
11 it under the terms of the GNU General Public License as published by
12 the Free Software Foundation; either version 3 of the License, or
13 (at your option) any later version.
14
15 This program is distributed in the hope that it will be useful,
16 but WITHOUT ANY WARRANTY; without even the implied warranty of
17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 GNU General Public License for more details.
19
20 You should have received a copy of the GNU General Public License
21 along with this program. If not, see <http://www.gnu.org/licenses/>.
22 */
23
24 #include "includes.h"
25 #include "smbd/smbd.h"
26 #include "librpc/gen_ndr/ndr_xattr.h"
27 #include "include/smbprofile.h"
28
29 #undef DBGC_CLASS
30 #define DBGC_CLASS DBGC_VFS
31
32 #include <gpfs_gpl.h>
33 #include "nfs4_acls.h"
34 #include "vfs_gpfs.h"
35 #include "system/filesys.h"
36
37 struct gpfs_config_data {
38 bool sharemodes;
39 bool leases;
40 bool hsm;
41 bool syncio;
42 bool winattr;
43 bool ftruncate;
44 bool getrealfilename;
45 };
46
47
48 static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
49 uint32 share_mode, uint32 access_mask)
50 {
51
52 struct gpfs_config_data *config;
53
54 SMB_VFS_HANDLE_GET_DATA(handle, config,
55 struct gpfs_config_data,
56 return -1);
57
58 START_PROFILE(syscall_kernel_flock);
59
60 kernel_flock(fsp->fh->fd, share_mode, access_mask);
61
62 if (config->sharemodes
63 && !set_gpfs_sharemode(fsp, access_mask, fsp->share_access)) {
64 return -1;
65 }
66
67 END_PROFILE(syscall_kernel_flock);
68
69 return 0;
70 }
71
72 static int vfs_gpfs_close(vfs_handle_struct *handle, files_struct *fsp)
73 {
74
75 struct gpfs_config_data *config;
76
77 SMB_VFS_HANDLE_GET_DATA(handle, config,
78 struct gpfs_config_data,
79 return -1);
80
81 if (config->sharemodes && (fsp->fh != NULL) && (fsp->fh->fd != -1)) {
82 set_gpfs_sharemode(fsp, 0, 0);
83 }
84
85 return SMB_VFS_NEXT_CLOSE(handle, fsp);
86 }
87
88 static int vfs_gpfs_setlease(vfs_handle_struct *handle, files_struct *fsp,
89 int leasetype)
90 {
91 struct gpfs_config_data *config;
92 int ret=0;
93
94 SMB_VFS_HANDLE_GET_DATA(handle, config,
95 struct gpfs_config_data,
96 return -1);
97
98 START_PROFILE(syscall_linux_setlease);
99
100 if (linux_set_lease_sighandler(fsp->fh->fd) == -1)
101 return -1;
102
103 if (config->leases) {
104 ret = set_gpfs_lease(fsp->fh->fd,leasetype);
105 }
106
107 if (ret < 0) {
108 /* This must have come from GPFS not being available */
109 /* or some other error, hence call the default */
110 ret = linux_setlease(fsp->fh->fd, leasetype);
111 }
112
113 END_PROFILE(syscall_linux_setlease);
114
115 return ret;
116 }
117
118 static int vfs_gpfs_get_real_filename(struct vfs_handle_struct *handle,
119 const char *path,
120 const char *name,
121 TALLOC_CTX *mem_ctx,
122 char **found_name)
123 {
124 int result;
125 char *full_path;
126 char real_pathname[PATH_MAX+1];
127 int buflen;
128 bool mangled;
129 struct gpfs_config_data *config;
130
131 SMB_VFS_HANDLE_GET_DATA(handle, config,
132 struct gpfs_config_data,
133 return -1);
134
135 if (!config->getrealfilename) {
136 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
137 mem_ctx, found_name);
138 }
139
140 mangled = mangle_is_mangled(name, handle->conn->params);
141 if (mangled) {
142 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
143 mem_ctx, found_name);
144 }
145
146 full_path = talloc_asprintf(talloc_tos(), "%s/%s", path, name);
147 if (full_path == NULL) {
148 errno = ENOMEM;
149 return -1;
150 }
151
152 buflen = sizeof(real_pathname) - 1;
153
154 result = smbd_gpfs_get_realfilename_path(full_path, real_pathname,
155 &buflen);
156
157 TALLOC_FREE(full_path);
158
159 if ((result == -1) && (errno == ENOSYS)) {
160 return SMB_VFS_NEXT_GET_REAL_FILENAME(
161 handle, path, name, mem_ctx, found_name);
162 }
163
164 if (result == -1) {
165 DEBUG(10, ("smbd_gpfs_get_realfilename_path returned %s\n",
166 strerror(errno)));
167 return -1;
168 }
169
170 /*
171 * GPFS does not necessarily null-terminate the returned path
172 * but instead returns the buffer length in buflen.
173 */
174
175 if (buflen < sizeof(real_pathname)) {
176 real_pathname[buflen] = '\0';
177 } else {
178 real_pathname[sizeof(real_pathname)-1] = '\0';
179 }
180
181 DEBUG(10, ("smbd_gpfs_get_realfilename_path: %s/%s -> %s\n",
182 path, name, real_pathname));
183
184 name = strrchr_m(real_pathname, '/');
185 if (name == NULL) {
186 errno = ENOENT;
187 return -1;
188 }
189
190 *found_name = talloc_strdup(mem_ctx, name+1);
191 if (*found_name == NULL) {
192 errno = ENOMEM;
193 return -1;
194 }
195
196 return 0;
197 }
198
199 static void gpfs_dumpacl(int level, struct gpfs_acl *gacl)
200 {
201 gpfs_aclCount_t i;
202 if (gacl==NULL)
203 {
204 DEBUG(0, ("gpfs acl is NULL\n"));
205 return;
206 }
207
208 DEBUG(level, ("gpfs acl: nace: %d, type:%d, version:%d, level:%d, len:%d\n",
209 gacl->acl_nace, gacl->acl_type, gacl->acl_version, gacl->acl_level, gacl->acl_len));
210 for(i=0; i<gacl->acl_nace; i++)
211 {
212 struct gpfs_ace_v4 *gace = gacl->ace_v4 + i;
213 DEBUG(level, ("\tace[%d]: type:%d, flags:0x%x, mask:0x%x, iflags:0x%x, who:%u\n",
214 i, gace->aceType, gace->aceFlags, gace->aceMask,
215 gace->aceIFlags, gace->aceWho));
216 }
217 }
218
219 static struct gpfs_acl *gpfs_getacl_alloc(const char *fname, gpfs_aclType_t type)
220 {
221 struct gpfs_acl *acl;
222 size_t len = 200;
223 int ret;
224 TALLOC_CTX *mem_ctx = talloc_tos();
225
226 acl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, len);
227 if (acl == NULL) {
228 errno = ENOMEM;
229 return NULL;
230 }
231
232 acl->acl_len = len;
233 acl->acl_level = 0;
234 acl->acl_version = 0;
235 acl->acl_type = type;
236
237 ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT | GPFS_ACL_SAMBA, acl);
238 if ((ret != 0) && (errno == ENOSPC)) {
239 struct gpfs_acl *new_acl = (struct gpfs_acl *)TALLOC_SIZE(
240 mem_ctx, acl->acl_len + sizeof(struct gpfs_acl));
241 if (new_acl == NULL) {
242 errno = ENOMEM;
243 return NULL;
244 }
245
246 new_acl->acl_len = acl->acl_len;
247 new_acl->acl_level = acl->acl_level;
248 new_acl->acl_version = acl->acl_version;
249 new_acl->acl_type = acl->acl_type;
250 acl = new_acl;
251
252 ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT | GPFS_ACL_SAMBA, acl);
253 }
254 if (ret != 0)
255 {
256 DEBUG(8, ("smbd_gpfs_getacl failed with %s\n",strerror(errno)));
257 return NULL;
258 }
259
260 return acl;
261 }
262
263 /* Tries to get nfs4 acls and returns SMB ACL allocated.
264 * On failure returns 1 if it got non-NFSv4 ACL to prompt
265 * retry with POSIX ACL checks.
266 * On failure returns -1 if there is system (GPFS) error, check errno.
267 * Returns 0 on success
268 */
269 static int gpfs_get_nfs4_acl(const char *fname, SMB4ACL_T **ppacl)
270 {
271 gpfs_aclCount_t i;
272 struct gpfs_acl *gacl = NULL;
273 DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname));
274
275 /* First get the real acl length */
276 gacl = gpfs_getacl_alloc(fname, 0);
277 if (gacl == NULL) {
278 DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
279 fname, strerror(errno)));
280 return -1;
281 }
282
283 if (gacl->acl_type != GPFS_ACL_TYPE_NFS4) {
284 DEBUG(10, ("Got non-nfsv4 acl\n"));
285 /* Retry with POSIX ACLs check */
286 return 1;
287 }
288
289 *ppacl = smb_create_smb4acl();
290
291 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
292 gacl->acl_len, gacl->acl_level, gacl->acl_version,
293 gacl->acl_nace));
294
295 for (i=0; i<gacl->acl_nace; i++) {
296 struct gpfs_ace_v4 *gace = &gacl->ace_v4[i];
297 SMB_ACE4PROP_T smbace;
298 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
299 "who: %d\n", gace->aceType, gace->aceIFlags,
300 gace->aceFlags, gace->aceMask, gace->aceWho));
301
302 ZERO_STRUCT(smbace);
303 if (gace->aceIFlags & ACE4_IFLAG_SPECIAL_ID) {
304 smbace.flags |= SMB_ACE4_ID_SPECIAL;
305 switch (gace->aceWho) {
306 case ACE4_SPECIAL_OWNER:
307 smbace.who.special_id = SMB_ACE4_WHO_OWNER;
308 break;
309 case ACE4_SPECIAL_GROUP:
310 smbace.who.special_id = SMB_ACE4_WHO_GROUP;
311 break;
312 case ACE4_SPECIAL_EVERYONE:
313 smbace.who.special_id = SMB_ACE4_WHO_EVERYONE;
314 break;
315 default:
316 DEBUG(8, ("invalid special gpfs id %d "
317 "ignored\n", gace->aceWho));
318 continue; /* don't add it */
319 }
320 } else {
321 if (gace->aceFlags & ACE4_FLAG_GROUP_ID)
322 smbace.who.gid = gace->aceWho;
323 else
324 smbace.who.uid = gace->aceWho;
325 }
326
327 /* remove redundent deny entries */
328 if (i > 0 && gace->aceType == SMB_ACE4_ACCESS_DENIED_ACE_TYPE) {
329 struct gpfs_ace_v4 *prev = &gacl->ace_v4[i-1];
330 if (prev->aceType == SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE &&
331 prev->aceFlags == gace->aceFlags &&
332 prev->aceIFlags == gace->aceIFlags &&
333 (gace->aceMask & prev->aceMask) == 0 &&
334 gace->aceWho == prev->aceWho) {
335 /* its redundent - skip it */
336 continue;
337 }
338 }
339
340 smbace.aceType = gace->aceType;
341 smbace.aceFlags = gace->aceFlags;
342 smbace.aceMask = gace->aceMask;
343 smb_add_ace4(*ppacl, &smbace);
344 }
345
346 return 0;
347 }
348
349 static NTSTATUS gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
350 files_struct *fsp, uint32 security_info,
351 struct security_descriptor **ppdesc)
352 {
353 SMB4ACL_T *pacl = NULL;
354 int result;
355
356 *ppdesc = NULL;
357 result = gpfs_get_nfs4_acl(fsp->fsp_name->base_name, &pacl);
358
359 if (result == 0)
360 return smb_fget_nt_acl_nfs4(fsp, security_info, ppdesc, pacl);
361
362 if (result > 0) {
363 DEBUG(10, ("retrying with posix acl...\n"));
364 return posix_fget_nt_acl(fsp, security_info, ppdesc);
365 }
366
367 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
368 return map_nt_error_from_unix(errno);
369 }
370
371 static NTSTATUS gpfsacl_get_nt_acl(vfs_handle_struct *handle,
372 const char *name,
373 uint32 security_info, struct security_descriptor **ppdesc)
374 {
375 SMB4ACL_T *pacl = NULL;
376 int result;
377
378 *ppdesc = NULL;
379 result = gpfs_get_nfs4_acl(name, &pacl);
380
381 if (result == 0)
382 return smb_get_nt_acl_nfs4(handle->conn, name, security_info, ppdesc, pacl);
383
384 if (result > 0) {
385 DEBUG(10, ("retrying with posix acl...\n"));
386 return posix_get_nt_acl(handle->conn, name, security_info, ppdesc);
387 }
388
389 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
390 return map_nt_error_from_unix(errno);
391 }
392
393 static bool gpfsacl_process_smbacl(files_struct *fsp, SMB4ACL_T *smbacl)
394 {
395 int ret;
396 gpfs_aclLen_t gacl_len;
397 SMB4ACE_T *smbace;
398 struct gpfs_acl *gacl;
399 TALLOC_CTX *mem_ctx = talloc_tos();
400
401 gacl_len = sizeof(struct gpfs_acl) +
402 (smb_get_naces(smbacl)-1)*sizeof(gpfs_ace_v4_t);
403
404 gacl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, gacl_len);
405 if (gacl == NULL) {
406 DEBUG(0, ("talloc failed\n"));
407 errno = ENOMEM;
408 return False;
409 }
410
411 gacl->acl_len = gacl_len;
412 gacl->acl_level = 0;
413 gacl->acl_version = GPFS_ACL_VERSION_NFS4;
414 gacl->acl_type = GPFS_ACL_TYPE_NFS4;
415 gacl->acl_nace = 0; /* change later... */
416
417 for (smbace=smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
418 struct gpfs_ace_v4 *gace = &gacl->ace_v4[gacl->acl_nace];
419 SMB_ACE4PROP_T *aceprop = smb_get_ace4(smbace);
420
421 gace->aceType = aceprop->aceType;
422 gace->aceFlags = aceprop->aceFlags;
423 gace->aceMask = aceprop->aceMask;
424
425 /*
426 * GPFS can't distinguish between WRITE and APPEND on
427 * files, so one being set without the other is an
428 * error. Sorry for the many ()'s :-)
429 */
430
431 if (!fsp->is_directory
432 &&
433 ((((gace->aceMask & ACE4_MASK_WRITE) == 0)
434 && ((gace->aceMask & ACE4_MASK_APPEND) != 0))
435 ||
436 (((gace->aceMask & ACE4_MASK_WRITE) != 0)
437 && ((gace->aceMask & ACE4_MASK_APPEND) == 0)))
438 &&
439 lp_parm_bool(fsp->conn->params->service, "gpfs",
440 "merge_writeappend", True)) {
441 DEBUG(2, ("vfs_gpfs.c: file [%s]: ACE contains "
442 "WRITE^APPEND, setting WRITE|APPEND\n",
443 fsp_str_dbg(fsp)));
444 gace->aceMask |= ACE4_MASK_WRITE|ACE4_MASK_APPEND;
445 }
446
447 gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
448
449 if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
450 {
451 switch(aceprop->who.special_id)
452 {
453 case SMB_ACE4_WHO_EVERYONE:
454 gace->aceWho = ACE4_SPECIAL_EVERYONE;
455 break;
456 case SMB_ACE4_WHO_OWNER:
457 gace->aceWho = ACE4_SPECIAL_OWNER;
458 break;
459 case SMB_ACE4_WHO_GROUP:
460 gace->aceWho = ACE4_SPECIAL_GROUP;
461 break;
462 default:
463 DEBUG(8, ("unsupported special_id %d\n", aceprop->who.special_id));
464 continue; /* don't add it !!! */
465 }
466 } else {
467 /* just only for the type safety... */
468 if (aceprop->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
469 gace->aceWho = aceprop->who.gid;
470 else
471 gace->aceWho = aceprop->who.uid;
472 }
473
474 gacl->acl_nace++;
475 }
476
477 ret = smbd_gpfs_putacl(fsp->fsp_name->base_name,
478 GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gacl);
479 if (ret != 0) {
480 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno)));
481 gpfs_dumpacl(8, gacl);
482 return False;
483 }
484
485 DEBUG(10, ("gpfs_putacl succeeded\n"));
486 return True;
487 }
488
489 static NTSTATUS gpfsacl_set_nt_acl_internal(files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
490 {
491 struct gpfs_acl *acl;
492 NTSTATUS result = NT_STATUS_ACCESS_DENIED;
493
494 acl = gpfs_getacl_alloc(fsp->fsp_name->base_name, 0);
495 if (acl == NULL)
496 return result;
497
498 if (acl->acl_version&GPFS_ACL_VERSION_NFS4)
499 {
500 if (lp_parm_bool(fsp->conn->params->service, "gpfs",
501 "refuse_dacl_protected", false)
502 && (psd->type&SEC_DESC_DACL_PROTECTED)) {
503 DEBUG(2, ("Rejecting unsupported ACL with DACL_PROTECTED bit set\n"));
504 return NT_STATUS_NOT_SUPPORTED;
505 }
506
507 result = smb_set_nt_acl_nfs4(
508 fsp, security_info_sent, psd,
509 gpfsacl_process_smbacl);
510 } else { /* assume POSIX ACL - by default... */
511 result = set_nt_acl(fsp, security_info_sent, psd);
512 }
513
514 return result;
515 }
516
517 static NTSTATUS gpfsacl_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
518 {
519 return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
520 }
521
522 static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl)
523 {
524 SMB_ACL_T result;
525 gpfs_aclCount_t i;
526
527 result = sys_acl_init(pacl->acl_nace);
528 if (result == NULL) {
529 errno = ENOMEM;
530 return NULL;
531 }
532
533 result->count = pacl->acl_nace;
534
535 for (i=0; i<pacl->acl_nace; i++) {
536 struct smb_acl_entry *ace = &result->acl[i];
537 const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
538
539 DEBUG(10, ("Converting type %d id %lu perm %x\n",
540 (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
541 (int)g_ace->ace_perm));
542
543 switch (g_ace->ace_type) {
544 case GPFS_ACL_USER:
545 ace->a_type = SMB_ACL_USER;
546 ace->uid = (uid_t)g_ace->ace_who;
547 break;
548 case GPFS_ACL_USER_OBJ:
549 ace->a_type = SMB_ACL_USER_OBJ;
550 break;
551 case GPFS_ACL_GROUP:
552 ace->a_type = SMB_ACL_GROUP;
553 ace->gid = (gid_t)g_ace->ace_who;
554 break;
555 case GPFS_ACL_GROUP_OBJ:
556 ace->a_type = SMB_ACL_GROUP_OBJ;
557 break;
558 case GPFS_ACL_OTHER:
559 ace->a_type = SMB_ACL_OTHER;
560 break;
561 case GPFS_ACL_MASK:
562 ace->a_type = SMB_ACL_MASK;
563 break;
564 default:
565 DEBUG(10, ("Got invalid ace_type: %d\n",
566 g_ace->ace_type));
567 errno = EINVAL;
568 SAFE_FREE(result);
569 return NULL;
570 }
571
572 ace->a_perm = 0;
573 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
574 SMB_ACL_READ : 0;
575 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
576 SMB_ACL_WRITE : 0;
577 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
578 SMB_ACL_EXECUTE : 0;
579
580 DEBUGADD(10, ("Converted to %d perm %x\n",
581 ace->a_type, ace->a_perm));
582 }
583
584 return result;
585 }
586
587 static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type)
588 {
589 struct gpfs_acl *pacl;
590 SMB_ACL_T result = NULL;
591
592 pacl = gpfs_getacl_alloc(path, type);
593
594 if (pacl == NULL) {
595 DEBUG(10, ("gpfs_getacl failed for %s with %s\n",
596 path, strerror(errno)));
597 if (errno == 0) {
598 errno = EINVAL;
599 }
600 goto done;
601 }
602
603 if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
604 DEBUG(10, ("Got acl version %d, expected %d\n",
605 pacl->acl_version, GPFS_ACL_VERSION_POSIX));
606 errno = EINVAL;
607 goto done;
608 }
609
610 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
611 pacl->acl_len, pacl->acl_level, pacl->acl_version,
612 pacl->acl_nace));
613
614 result = gpfs2smb_acl(pacl);
615 if (result == NULL) {
616 goto done;
617 }
618
619 done:
620
621 if (errno != 0) {
622 SAFE_FREE(result);
623 }
624 return result;
625 }
626
627 static SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
628 const char *path_p,
629 SMB_ACL_TYPE_T type)
630 {
631 gpfs_aclType_t gpfs_type;
632
633 switch(type) {
634 case SMB_ACL_TYPE_ACCESS:
635 gpfs_type = GPFS_ACL_TYPE_ACCESS;
636 break;
637 case SMB_ACL_TYPE_DEFAULT:
638 gpfs_type = GPFS_ACL_TYPE_DEFAULT;
639 break;
640 default:
641 DEBUG(0, ("Got invalid type: %d\n", type));
642 smb_panic("exiting");
643 }
644
645 return gpfsacl_get_posix_acl(path_p, gpfs_type);
646 }
647
648 static SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
649 files_struct *fsp)
650 {
651 return gpfsacl_get_posix_acl(fsp->fsp_name->base_name,
652 GPFS_ACL_TYPE_ACCESS);
653 }
654
655 static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
656 SMB_ACL_TYPE_T type)
657 {
658 gpfs_aclLen_t len;
659 struct gpfs_acl *result;
660 int i;
661 union gpfs_ace_union
662 {
663 gpfs_ace_v1_t ace_v1[1]; /* when GPFS_ACL_VERSION_POSIX */
664 gpfs_ace_v4_t ace_v4[1]; /* when GPFS_ACL_VERSION_NFS4 */
665 };
666
667 DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
668
669 len = sizeof(struct gpfs_acl) - sizeof(union gpfs_ace_union) +
670 (pacl->count)*sizeof(gpfs_ace_v1_t);
671
672 result = (struct gpfs_acl *)SMB_MALLOC(len);
673 if (result == NULL) {
674 errno = ENOMEM;
675 return result;
676 }
677
678 result->acl_len = len;
679 result->acl_level = 0;
680 result->acl_version = GPFS_ACL_VERSION_POSIX;
681 result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
682 GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
683 result->acl_nace = pacl->count;
684
685 for (i=0; i<pacl->count; i++) {
686 const struct smb_acl_entry *ace = &pacl->acl[i];
687 struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
688
689 DEBUG(10, ("Converting type %d perm %x\n",
690 (int)ace->a_type, (int)ace->a_perm));
691
692 g_ace->ace_perm = 0;
693
694 switch(ace->a_type) {
695 case SMB_ACL_USER:
696 g_ace->ace_type = GPFS_ACL_USER;
697 g_ace->ace_who = (gpfs_uid_t)ace->uid;
698 break;
699 case SMB_ACL_USER_OBJ:
700 g_ace->ace_type = GPFS_ACL_USER_OBJ;
701 g_ace->ace_perm |= ACL_PERM_CONTROL;
702 g_ace->ace_who = 0;
703 break;
704 case SMB_ACL_GROUP:
705 g_ace->ace_type = GPFS_ACL_GROUP;
706 g_ace->ace_who = (gpfs_uid_t)ace->gid;
707 break;
708 case SMB_ACL_GROUP_OBJ:
709 g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
710 g_ace->ace_who = 0;
711 break;
712 case SMB_ACL_MASK:
713 g_ace->ace_type = GPFS_ACL_MASK;
714 g_ace->ace_perm = 0x8f;
715 g_ace->ace_who = 0;
716 break;
717 case SMB_ACL_OTHER:
718 g_ace->ace_type = GPFS_ACL_OTHER;
719 g_ace->ace_who = 0;
720 break;
721 default:
722 DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
723 errno = EINVAL;
724 SAFE_FREE(result);
725 return NULL;
726 }
727
728 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
729 ACL_PERM_READ : 0;
730 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
731 ACL_PERM_WRITE : 0;
732 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
733 ACL_PERM_EXECUTE : 0;
734
735 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
736 g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
737 }
738
739 return result;
740 }
741
742 static int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
743 const char *name,
744 SMB_ACL_TYPE_T type,
745 SMB_ACL_T theacl)
746 {
747 struct gpfs_acl *gpfs_acl;
748 int result;
749
750 gpfs_acl = smb2gpfs_acl(theacl, type);
751 if (gpfs_acl == NULL) {
752 return -1;
753 }
754
755 result = smbd_gpfs_putacl((char *)name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gpfs_acl);
756
757 SAFE_FREE(gpfs_acl);
758 return result;
759 }
760
761 static int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
762 files_struct *fsp,
763 SMB_ACL_T theacl)
764 {
765 return gpfsacl_sys_acl_set_file(handle, fsp->fsp_name->base_name,
766 SMB_ACL_TYPE_ACCESS, theacl);
767 }
768
769 static int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
770 const char *path)
771 {
772 errno = ENOTSUP;
773 return -1;
774 }
775
776 /*
777 * Assumed: mode bits are shiftable and standard
778 * Output: the new aceMask field for an smb nfs4 ace
779 */
780 static uint32 gpfsacl_mask_filter(uint32 aceType, uint32 aceMask, uint32 rwx)
781 {
782 const uint32 posix_nfs4map[3] = {
783 SMB_ACE4_EXECUTE, /* execute */
784 SMB_ACE4_WRITE_DATA | SMB_ACE4_APPEND_DATA, /* write; GPFS specific */
785 SMB_ACE4_READ_DATA /* read */
786 };
787 int i;
788 uint32_t posix_mask = 0x01;
789 uint32_t posix_bit;
790 uint32_t nfs4_bits;
791
792 for(i=0; i<3; i++) {
793 nfs4_bits = posix_nfs4map[i];
794 posix_bit = rwx & posix_mask;
795
796 if (aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE) {
797 if (posix_bit)
798 aceMask |= nfs4_bits;
799 else
800 aceMask &= ~nfs4_bits;
801 } else {
802 /* add deny bits when suitable */
803 if (!posix_bit)
804 aceMask |= nfs4_bits;
805 else
806 aceMask &= ~nfs4_bits;
807 } /* other ace types are unexpected */
808
809 posix_mask <<= 1;
810 }
811
812 return aceMask;
813 }
814
815 static int gpfsacl_emu_chmod(const char *path, mode_t mode)
816 {
817 SMB4ACL_T *pacl = NULL;
818 int result;
819 bool haveAllowEntry[SMB_ACE4_WHO_EVERYONE + 1] = {False, False, False, False};
820 int i;
821 files_struct fake_fsp; /* TODO: rationalize parametrization */
822 SMB4ACE_T *smbace;
823 NTSTATUS status;
824
825 DEBUG(10, ("gpfsacl_emu_chmod invoked for %s mode %o\n", path, mode));
826
827 result = gpfs_get_nfs4_acl(path, &pacl);
828 if (result)
829 return result;
830
831 if (mode & ~(S_IRWXU | S_IRWXG | S_IRWXO)) {
832 DEBUG(2, ("WARNING: cutting extra mode bits %o on %s\n", mode, path));
833 }
834
835 for (smbace=smb_first_ace4(pacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
836 SMB_ACE4PROP_T *ace = smb_get_ace4(smbace);
837 uint32_t specid = ace->who.special_id;
838
839 if (ace->flags&SMB_ACE4_ID_SPECIAL &&
840 ace->aceType<=SMB_ACE4_ACCESS_DENIED_ACE_TYPE &&
841 specid <= SMB_ACE4_WHO_EVERYONE) {
842
843 uint32_t newMask;
844
845 if (ace->aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE)
846 haveAllowEntry[specid] = True;
847
848 /* mode >> 6 for @owner, mode >> 3 for @group,
849 * mode >> 0 for @everyone */
850 newMask = gpfsacl_mask_filter(ace->aceType, ace->aceMask,
851 mode >> ((SMB_ACE4_WHO_EVERYONE - specid) * 3));
852 if (ace->aceMask!=newMask) {
853 DEBUG(10, ("ace changed for %s (%o -> %o) id=%d\n",
854 path, ace->aceMask, newMask, specid));
855 }
856 ace->aceMask = newMask;
857 }
858 }
859
860 /* make sure we have at least ALLOW entries
861 * for all the 3 special ids (@EVERYONE, @OWNER, @GROUP)
862 * - if necessary
863 */
864 for(i = SMB_ACE4_WHO_OWNER; i<=SMB_ACE4_WHO_EVERYONE; i++) {
865 SMB_ACE4PROP_T ace;
866
867 if (haveAllowEntry[i]==True)
868 continue;
869
870 ZERO_STRUCT(ace);
871 ace.aceType = SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE;
872 ace.flags |= SMB_ACE4_ID_SPECIAL;
873 ace.who.special_id = i;
874
875 if (i==SMB_ACE4_WHO_GROUP) /* not sure it's necessary... */
876 ace.aceFlags |= SMB_ACE4_IDENTIFIER_GROUP;
877
878 ace.aceMask = gpfsacl_mask_filter(ace.aceType, ace.aceMask,
879 mode >> ((SMB_ACE4_WHO_EVERYONE - i) * 3));
880
881 /* don't add unnecessary aces */
882 if (!ace.aceMask)
883 continue;
884
885 /* we add it to the END - as windows expects allow aces */
886 smb_add_ace4(pacl, &ace);
887 DEBUG(10, ("Added ALLOW ace for %s, mode=%o, id=%d, aceMask=%x\n",
888 path, mode, i, ace.aceMask));
889 }
890
891 /* don't add complementary DENY ACEs here */
892 ZERO_STRUCT(fake_fsp);
893 status = create_synthetic_smb_fname(talloc_tos(), path, NULL, NULL,
894 &fake_fsp.fsp_name);
895 if (!NT_STATUS_IS_OK(status)) {
896 errno = map_errno_from_nt_status(status);
897 return -1;
898 }
899 /* put the acl */
900 if (gpfsacl_process_smbacl(&fake_fsp, pacl) == False) {
901 TALLOC_FREE(fake_fsp.fsp_name);
902 return -1;
903 }
904
905 TALLOC_FREE(fake_fsp.fsp_name);
906 return 0; /* ok for [f]chmod */
907 }
908
909 static int vfs_gpfs_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
910 {
911 struct smb_filename *smb_fname_cpath;
912 int rc;
913 NTSTATUS status;
914
915 status = create_synthetic_smb_fname(
916 talloc_tos(), path, NULL, NULL, &smb_fname_cpath);
917
918 if (SMB_VFS_NEXT_STAT(handle, smb_fname_cpath) != 0) {
919 return -1;
920 }
921
922 /* avoid chmod() if possible, to preserve acls */
923 if ((smb_fname_cpath->st.st_ex_mode & ~S_IFMT) == mode) {
924 return 0;
925 }
926
927 rc = gpfsacl_emu_chmod(path, mode);
928 if (rc == 1)
929 return SMB_VFS_NEXT_CHMOD(handle, path, mode);
930 return rc;
931 }
932
933 static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
934 {
935 SMB_STRUCT_STAT st;
936 int rc;
937
938 if (SMB_VFS_NEXT_FSTAT(handle, fsp, &st) != 0) {
939 return -1;
940 }
941
942 /* avoid chmod() if possible, to preserve acls */
943 if ((st.st_ex_mode & ~S_IFMT) == mode) {
944 return 0;
945 }
946
947 rc = gpfsacl_emu_chmod(fsp->fsp_name->base_name, mode);
948 if (rc == 1)
949 return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
950 return rc;
951 }
952
953 static int gpfs_set_xattr(struct vfs_handle_struct *handle, const char *path,
954 const char *name, const void *value, size_t size, int flags){
955 struct xattr_DOSATTRIB dosattrib;
956 enum ndr_err_code ndr_err;
957 DATA_BLOB blob;
958 const char *attrstr = value;
959 unsigned int dosmode=0;
960 struct gpfs_winattr attrs;
961 int ret = 0;
962 struct gpfs_config_data *config;
963
964 SMB_VFS_HANDLE_GET_DATA(handle, config,
965 struct gpfs_config_data,
966 return -1);
967
968 if (!config->winattr) {
969 DEBUG(10, ("gpfs_set_xattr:name is %s -> next\n",name));
970 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
971 }
972
973 DEBUG(10, ("gpfs_set_xattr: %s \n",path));
974
975 /* Only handle DOS Attributes */
976 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
977 DEBUG(5, ("gpfs_set_xattr:name is %s\n",name));
978 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
979 }
980
981 blob.data = (uint8_t *)attrstr;
982 blob.length = size;
983
984 ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), &dosattrib,
985 (ndr_pull_flags_fn_t)ndr_pull_xattr_DOSATTRIB);
986
987 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
988 DEBUG(1, ("gpfs_set_xattr: bad ndr decode "
989 "from EA on file %s: Error = %s\n",
990 path, ndr_errstr(ndr_err)));
991 return false;
992 }
993
994 if (dosattrib.version != 3) {
995 DEBUG(1, ("gpfs_set_xattr: expected dosattrib version 3, got "
996 "%d\n", (int)dosattrib.version));
997 return false;
998 }
999 if (!(dosattrib.info.info3.valid_flags & XATTR_DOSINFO_ATTRIB)) {
1000 DEBUG(10, ("gpfs_set_xattr: XATTR_DOSINFO_ATTRIB not "
1001 "valid, ignoring\n"));
1002 return true;
1003 }
1004
1005 dosmode = dosattrib.info.info3.attrib;
1006
1007 attrs.winAttrs = 0;
1008 /*Just map RD_ONLY, ARCHIVE, SYSTEM HIDDEN and SPARSE. Ignore the others*/
1009 if (dosmode & FILE_ATTRIBUTE_ARCHIVE){
1010 attrs.winAttrs |= GPFS_WINATTR_ARCHIVE;
1011 }
1012 if (dosmode & FILE_ATTRIBUTE_HIDDEN){
1013 attrs.winAttrs |= GPFS_WINATTR_HIDDEN;
1014 }
1015 if (dosmode & FILE_ATTRIBUTE_SYSTEM){
1016 attrs.winAttrs |= GPFS_WINATTR_SYSTEM;
1017 }
1018 if (dosmode & FILE_ATTRIBUTE_READONLY){
1019 attrs.winAttrs |= GPFS_WINATTR_READONLY;
1020 }
1021 if (dosmode & FILE_ATTRIBUTE_SPARSE) {
1022 attrs.winAttrs |= GPFS_WINATTR_SPARSE_FILE;
1023 }
1024
1025
1026 ret = set_gpfs_winattrs(discard_const_p(char, path),
1027 GPFS_WINATTR_SET_ATTRS, &attrs);
1028 if ( ret == -1){
1029 if (errno == ENOSYS) {
1030 return SMB_VFS_NEXT_SETXATTR(handle, path, name, value,
1031 size, flags);
1032 }
1033
1034 DEBUG(1, ("gpfs_set_xattr:Set GPFS attributes failed %d\n",ret));
1035 return -1;
1036 }
1037
1038 DEBUG(10, ("gpfs_set_xattr:Set attributes: 0x%x\n",attrs.winAttrs));
1039 return 0;
1040 }
1041
1042 static ssize_t gpfs_get_xattr(struct vfs_handle_struct *handle, const char *path,
1043 const char *name, void *value, size_t size){
1044 char *attrstr = value;
1045 unsigned int dosmode = 0;
1046 struct gpfs_winattr attrs;
1047 int ret = 0;
1048 struct gpfs_config_data *config;
1049
1050 SMB_VFS_HANDLE_GET_DATA(handle, config,
1051 struct gpfs_config_data,
1052 return -1);
1053
1054 if (!config->winattr) {
1055 DEBUG(10, ("gpfs_get_xattr:name is %s -> next\n",name));
1056 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1057 }
1058
1059 DEBUG(10, ("gpfs_get_xattr: %s \n",path));
1060
1061 /* Only handle DOS Attributes */
1062 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1063 DEBUG(5, ("gpfs_get_xattr:name is %s\n",name));
1064 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1065 }
1066
1067 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1068 if ( ret == -1){
1069 if (errno == ENOSYS) {
1070 return SMB_VFS_NEXT_GETXATTR(handle, path, name, value,
1071 size);
1072 }
1073
1074 DEBUG(1, ("gpfs_get_xattr: Get GPFS attributes failed: "
1075 "%d (%s)\n", ret, strerror(errno)));
1076 return -1;
1077 }
1078
1079 DEBUG(10, ("gpfs_get_xattr:Got attributes: 0x%x\n",attrs.winAttrs));
1080
1081 /*Just map RD_ONLY, ARCHIVE, SYSTEM, HIDDEN and SPARSE. Ignore the others*/
1082 if (attrs.winAttrs & GPFS_WINATTR_ARCHIVE){
1083 dosmode |= FILE_ATTRIBUTE_ARCHIVE;
1084 }
1085 if (attrs.winAttrs & GPFS_WINATTR_HIDDEN){
1086 dosmode |= FILE_ATTRIBUTE_HIDDEN;
1087 }
1088 if (attrs.winAttrs & GPFS_WINATTR_SYSTEM){
1089 dosmode |= FILE_ATTRIBUTE_SYSTEM;
1090 }
1091 if (attrs.winAttrs & GPFS_WINATTR_READONLY){
1092 dosmode |= FILE_ATTRIBUTE_READONLY;
1093 }
1094 if (attrs.winAttrs & GPFS_WINATTR_SPARSE_FILE) {
1095 dosmode |= FILE_ATTRIBUTE_SPARSE;
1096 }
1097
1098 snprintf(attrstr, size, "0x%2.2x",
1099 (unsigned int)(dosmode & SAMBA_ATTRIBUTES_MASK));
1100 DEBUG(10, ("gpfs_get_xattr: returning %s\n",attrstr));
1101 return 4;
1102 }
1103
1104 static int vfs_gpfs_stat(struct vfs_handle_struct *handle,
1105 struct smb_filename *smb_fname)
1106 {
1107 struct gpfs_winattr attrs;
1108 char *fname = NULL;
1109 NTSTATUS status;
1110 int ret;
1111 struct gpfs_config_data *config;
1112
1113 SMB_VFS_HANDLE_GET_DATA(handle, config,
1114 struct gpfs_config_data,
1115 return -1);
1116
1117 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
1118 if (ret == -1) {
1119 return -1;
1120 }
1121
1122 if (!config->winattr) {
1123 return 0;
1124 }
1125
1126 status = get_full_smb_filename(talloc_tos(), smb_fname, &fname);
1127 if (!NT_STATUS_IS_OK(status)) {
1128 errno = map_errno_from_nt_status(status);
1129 return -1;
1130 }
1131 ret = get_gpfs_winattrs(discard_const_p(char, fname), &attrs);
1132 TALLOC_FREE(fname);
1133 if (ret == 0) {
1134 smb_fname->st.st_ex_calculated_birthtime = false;
1135 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1136 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1137 smb_fname->st.vfs_private = attrs.winAttrs;
1138 }
1139 return 0;
1140 }
1141
1142 static int vfs_gpfs_fstat(struct vfs_handle_struct *handle,
1143 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1144 {
1145 struct gpfs_winattr attrs;
1146 int ret;
1147 struct gpfs_config_data *config;
1148
1149 SMB_VFS_HANDLE_GET_DATA(handle, config,
1150 struct gpfs_config_data,
1151 return -1);
1152
1153 ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
1154 if (ret == -1) {
1155 return -1;
1156 }
1157 if ((fsp->fh == NULL) || (fsp->fh->fd == -1)) {
1158 return 0;
1159 }
1160 if (!config->winattr) {
1161 return 0;
1162 }
1163
1164 ret = smbd_fget_gpfs_winattrs(fsp->fh->fd, &attrs);
1165 if (ret == 0) {
1166 sbuf->st_ex_calculated_birthtime = false;
1167 sbuf->st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1168 sbuf->st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1169 }
1170 return 0;
1171 }
1172
1173 static int vfs_gpfs_lstat(struct vfs_handle_struct *handle,
1174 struct smb_filename *smb_fname)
1175 {
1176 struct gpfs_winattr attrs;
1177 char *path = NULL;
1178 NTSTATUS status;
1179 int ret;
1180 struct gpfs_config_data *config;
1181
1182 SMB_VFS_HANDLE_GET_DATA(handle, config,
1183 struct gpfs_config_data,
1184 return -1);
1185
1186 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1187 if (ret == -1) {
1188 return -1;
1189 }
1190 if (!config->winattr) {
1191 return 0;
1192 }
1193
1194 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1195 if (!NT_STATUS_IS_OK(status)) {
1196 errno = map_errno_from_nt_status(status);
1197 return -1;
1198 }
1199 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1200 TALLOC_FREE(path);
1201 if (ret == 0) {
1202 smb_fname->st.st_ex_calculated_birthtime = false;
1203 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1204 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1205 smb_fname->st.vfs_private = attrs.winAttrs;
1206 }
1207 return 0;
1208 }
1209
1210 static int vfs_gpfs_ntimes(struct vfs_handle_struct *handle,
1211 const struct smb_filename *smb_fname,
1212 struct smb_file_time *ft)
1213 {
1214
1215 struct gpfs_winattr attrs;
1216 int ret;
1217 char *path = NULL;
1218 NTSTATUS status;
1219 struct gpfs_config_data *config;
1220
1221 SMB_VFS_HANDLE_GET_DATA(handle, config,
1222 struct gpfs_config_data,
1223 return -1);
1224
1225 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1226 if(ret == -1){
1227 DEBUG(1,("vfs_gpfs_ntimes: SMB_VFS_NEXT_NTIMES failed\n"));
1228 return -1;
1229 }
1230
1231 if(null_timespec(ft->create_time)){
1232 DEBUG(10,("vfs_gpfs_ntimes:Create Time is NULL\n"));
1233 return 0;
1234 }
1235
1236 if (!config->winattr) {
1237 return 0;
1238 }
1239
1240 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1241 if (!NT_STATUS_IS_OK(status)) {
1242 errno = map_errno_from_nt_status(status);
1243 return -1;
1244 }
1245
1246 attrs.winAttrs = 0;
1247 attrs.creationTime.tv_sec = ft->create_time.tv_sec;
1248 attrs.creationTime.tv_nsec = ft->create_time.tv_nsec;
1249
1250 ret = set_gpfs_winattrs(discard_const_p(char, path),
1251 GPFS_WINATTR_SET_CREATION_TIME, &attrs);
1252 if(ret == -1 && errno != ENOSYS){
1253 DEBUG(1,("vfs_gpfs_ntimes: set GPFS ntimes failed %d\n",ret));
1254 return -1;
1255 }
1256 return 0;
1257
1258 }
1259
1260 static int vfs_gpfs_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1261 SMB_OFF_T len)
1262 {
1263 int result;
1264 struct gpfs_config_data *config;
1265
1266 SMB_VFS_HANDLE_GET_DATA(handle, config,
1267 struct gpfs_config_data,
1268 return -1);
1269
1270 if (!config->ftruncate) {
1271 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1272 }
1273
1274 result = smbd_gpfs_ftruncate(fsp->fh->fd, len);
1275 if ((result == -1) && (errno == ENOSYS)) {
1276 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1277 }
1278 return result;
1279 }
1280
1281 static bool vfs_gpfs_is_offline(struct vfs_handle_struct *handle,
1282 const struct smb_filename *fname,
1283 SMB_STRUCT_STAT *sbuf)
1284 {
1285 struct gpfs_winattr attrs;
1286 char *path = NULL;
1287 NTSTATUS status;
1288 struct gpfs_config_data *config;
1289
1290 SMB_VFS_HANDLE_GET_DATA(handle, config,
1291 struct gpfs_config_data,
1292 return -1);
1293
1294 if (!config->winattr) {
1295 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1296 }
1297
1298 status = get_full_smb_filename(talloc_tos(), fname, &path);
1299 if (!NT_STATUS_IS_OK(status)) {
1300 errno = map_errno_from_nt_status(status);
1301 return -1;
1302 }
1303
1304 if (VALID_STAT(*sbuf)) {
1305 attrs.winAttrs = sbuf->vfs_private;
1306 } else {
1307 int ret;
1308 ret = get_gpfs_winattrs(path, &attrs);
1309
1310 if (ret == -1) {
1311 TALLOC_FREE(path);
1312 return false;
1313 }
1314 }
1315 if ((attrs.winAttrs & GPFS_WINATTR_OFFLINE) != 0) {
1316 DEBUG(10, ("%s is offline\n", path));
1317 TALLOC_FREE(path);
1318 return true;
1319 }
1320 DEBUG(10, ("%s is online\n", path));
1321 TALLOC_FREE(path);
1322 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1323 }
1324
1325 static bool vfs_gpfs_aio_force(struct vfs_handle_struct *handle,
1326 struct files_struct *fsp)
1327 {
1328 return vfs_gpfs_is_offline(handle, fsp->fsp_name, &fsp->fsp_name->st);
1329 }
1330
1331 static ssize_t vfs_gpfs_sendfile(vfs_handle_struct *handle, int tofd,
1332 files_struct *fsp, const DATA_BLOB *hdr,
1333 SMB_OFF_T offset, size_t n)
1334 {
1335 if ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0) {
1336 errno = ENOSYS;
1337 return -1;
1338 }
1339 return SMB_VFS_NEXT_SENDFILE(handle, tofd, fsp, hdr, offset, n);
1340 }
1341
1342 int vfs_gpfs_connect(struct vfs_handle_struct *handle, const char *service,
1343 const char *user)
1344 {
1345 struct gpfs_config_data *config;
1346
1347 smbd_gpfs_lib_init();
1348
1349 int ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
1350
1351 if (ret < 0) {
1352 return ret;
1353 }
1354
1355 config = talloc_zero(handle->conn, struct gpfs_config_data);
1356 if (!config) {
1357 SMB_VFS_NEXT_DISCONNECT(handle);
1358 DEBUG(0, ("talloc_zero() failed\n"));
1359 return -1;
1360 }
1361
1362 config->sharemodes = lp_parm_bool(SNUM(handle->conn), "gpfs",
1363 "sharemodes", true);
1364
1365 config->leases = lp_parm_bool(SNUM(handle->conn), "gpfs",
1366 "leases", true);
1367
1368 config->hsm = lp_parm_bool(SNUM(handle->conn), "gpfs",
1369 "hsm", false);
1370
1371 config->syncio = lp_parm_bool(SNUM(handle->conn), "gpfs",
1372 "syncio", false);
1373
1374 config->winattr = lp_parm_bool(SNUM(handle->conn), "gpfs",
1375 "winattr", false);
1376
1377 config->ftruncate = lp_parm_bool(SNUM(handle->conn), "gpfs",
1378 "ftruncate", true);
1379
1380 config->getrealfilename = lp_parm_bool(SNUM(handle->conn), "gpfs",
1381 "getrealfilename", true);
1382
1383 SMB_VFS_HANDLE_SET_DATA(handle, config,
1384 NULL, struct gpfs_config_data,
1385 return -1);
1386
1387 return 0;
1388 }
1389
1390 static uint32_t vfs_gpfs_capabilities(struct vfs_handle_struct *handle,
1391 enum timestamp_set_resolution *p_ts_res)
1392 {
1393 struct gpfs_config_data *config;
1394 uint32_t next;
1395
1396 next = SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
1397
1398 SMB_VFS_HANDLE_GET_DATA(handle, config,
1399 struct gpfs_config_data,
1400 return next);
1401
1402 if (config->hsm) {
1403 next |= FILE_SUPPORTS_REMOTE_STORAGE;
1404 }
1405 return next;
1406 }
1407
1408 static int vfs_gpfs_open(struct vfs_handle_struct *handle,
1409 struct smb_filename *smb_fname, files_struct *fsp,
1410 int flags, mode_t mode)
1411 {
1412 struct gpfs_config_data *config;
1413
1414 SMB_VFS_HANDLE_GET_DATA(handle, config,
1415 struct gpfs_config_data,
1416 return -1);
1417
1418 if (config->syncio) {
1419 flags |= O_SYNC;
1420 }
1421 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1422 }
1423
1424
1425 static struct vfs_fn_pointers vfs_gpfs_fns = {
1426 .connect_fn = vfs_gpfs_connect,
1427 .fs_capabilities_fn = vfs_gpfs_capabilities,
1428 .kernel_flock_fn = vfs_gpfs_kernel_flock,
1429 .linux_setlease_fn = vfs_gpfs_setlease,
1430 .get_real_filename_fn = vfs_gpfs_get_real_filename,
1431 .fget_nt_acl_fn = gpfsacl_fget_nt_acl,
1432 .get_nt_acl_fn = gpfsacl_get_nt_acl,
1433 .fset_nt_acl_fn = gpfsacl_fset_nt_acl,
1434 .sys_acl_get_file_fn = gpfsacl_sys_acl_get_file,
1435 .sys_acl_get_fd_fn = gpfsacl_sys_acl_get_fd,
1436 .sys_acl_set_file_fn = gpfsacl_sys_acl_set_file,
1437 .sys_acl_set_fd_fn = gpfsacl_sys_acl_set_fd,
1438 .sys_acl_delete_def_file_fn = gpfsacl_sys_acl_delete_def_file,
1439 .chmod_fn = vfs_gpfs_chmod,
1440 .fchmod_fn = vfs_gpfs_fchmod,
1441 .close_fn = vfs_gpfs_close,
1442 .setxattr_fn = gpfs_set_xattr,
1443 .getxattr_fn = gpfs_get_xattr,
1444 .stat_fn = vfs_gpfs_stat,
1445 .fstat_fn = vfs_gpfs_fstat,
1446 .lstat_fn = vfs_gpfs_lstat,
1447 .ntimes_fn = vfs_gpfs_ntimes,
1448 .is_offline_fn = vfs_gpfs_is_offline,
1449 .aio_force_fn = vfs_gpfs_aio_force,
1450 .sendfile_fn = vfs_gpfs_sendfile,
1451 .open_fn = vfs_gpfs_open,
1452 .ftruncate_fn = vfs_gpfs_ftruncate
1453 };
1454
1455 NTSTATUS vfs_gpfs_init(void);
1456 NTSTATUS vfs_gpfs_init(void)
1457 {
1458 init_gpfs();
1459
1460 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
1461 &vfs_gpfs_fns);
1462 }
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