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s3:vfs_gpfs: Check softquota before gracetime
[Samba/vl.git] / source3 / modules / vfs_gpfs.c
blobddd048acc0668722ad91fa1fb0899cce8b2417e3
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 #include "auth.h"
37
38 struct gpfs_config_data {
39 bool sharemodes;
40 bool leases;
41 bool hsm;
42 bool syncio;
43 bool winattr;
44 bool ftruncate;
45 bool getrealfilename;
46 bool dfreequota;
47 bool prealloc;
48 bool acl;
49 };
50
51
52 static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
53 uint32 share_mode, uint32 access_mask)
54 {
55
56 struct gpfs_config_data *config;
57 int ret = 0;
58
59 SMB_VFS_HANDLE_GET_DATA(handle, config,
60 struct gpfs_config_data,
61 return -1);
62
63 START_PROFILE(syscall_kernel_flock);
64
65 kernel_flock(fsp->fh->fd, share_mode, access_mask);
66
67 if (config->sharemodes
68 && !set_gpfs_sharemode(fsp, access_mask, fsp->share_access)) {
69 ret = -1;
70 }
71
72 END_PROFILE(syscall_kernel_flock);
73
74 return ret;
75 }
76
77 static int vfs_gpfs_close(vfs_handle_struct *handle, files_struct *fsp)
78 {
79
80 struct gpfs_config_data *config;
81
82 SMB_VFS_HANDLE_GET_DATA(handle, config,
83 struct gpfs_config_data,
84 return -1);
85
86 if (config->sharemodes && (fsp->fh != NULL) && (fsp->fh->fd != -1)) {
87 set_gpfs_sharemode(fsp, 0, 0);
88 }
89
90 return SMB_VFS_NEXT_CLOSE(handle, fsp);
91 }
92
93 static int vfs_gpfs_setlease(vfs_handle_struct *handle, files_struct *fsp,
94 int leasetype)
95 {
96 struct gpfs_config_data *config;
97 int ret=0;
98
99 SMB_VFS_HANDLE_GET_DATA(handle, config,
100 struct gpfs_config_data,
101 return -1);
102
103 if (linux_set_lease_sighandler(fsp->fh->fd) == -1)
104 return -1;
105
106 START_PROFILE(syscall_linux_setlease);
107
108 if (config->leases) {
109 ret = set_gpfs_lease(fsp->fh->fd,leasetype);
110 }
111
112 END_PROFILE(syscall_linux_setlease);
113
114 return ret;
115 }
116
117 static int vfs_gpfs_get_real_filename(struct vfs_handle_struct *handle,
118 const char *path,
119 const char *name,
120 TALLOC_CTX *mem_ctx,
121 char **found_name)
122 {
123 int result;
124 char *full_path;
125 char real_pathname[PATH_MAX+1];
126 int buflen;
127 bool mangled;
128 struct gpfs_config_data *config;
129
130 SMB_VFS_HANDLE_GET_DATA(handle, config,
131 struct gpfs_config_data,
132 return -1);
133
134 if (!config->getrealfilename) {
135 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
136 mem_ctx, found_name);
137 }
138
139 mangled = mangle_is_mangled(name, handle->conn->params);
140 if (mangled) {
141 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
142 mem_ctx, found_name);
143 }
144
145 full_path = talloc_asprintf(talloc_tos(), "%s/%s", path, name);
146 if (full_path == NULL) {
147 errno = ENOMEM;
148 return -1;
149 }
150
151 buflen = sizeof(real_pathname) - 1;
152
153 result = smbd_gpfs_get_realfilename_path(full_path, real_pathname,
154 &buflen);
155
156 TALLOC_FREE(full_path);
157
158 if ((result == -1) && (errno == ENOSYS)) {
159 return SMB_VFS_NEXT_GET_REAL_FILENAME(
160 handle, path, name, mem_ctx, found_name);
161 }
162
163 if (result == -1) {
164 DEBUG(10, ("smbd_gpfs_get_realfilename_path returned %s\n",
165 strerror(errno)));
166 return -1;
167 }
168
169 /*
170 * GPFS does not necessarily null-terminate the returned path
171 * but instead returns the buffer length in buflen.
172 */
173
174 if (buflen < sizeof(real_pathname)) {
175 real_pathname[buflen] = '\0';
176 } else {
177 real_pathname[sizeof(real_pathname)-1] = '\0';
178 }
179
180 DEBUG(10, ("smbd_gpfs_get_realfilename_path: %s/%s -> %s\n",
181 path, name, real_pathname));
182
183 name = strrchr_m(real_pathname, '/');
184 if (name == NULL) {
185 errno = ENOENT;
186 return -1;
187 }
188
189 *found_name = talloc_strdup(mem_ctx, name+1);
190 if (*found_name == NULL) {
191 errno = ENOMEM;
192 return -1;
193 }
194
195 return 0;
196 }
197
198 static void gpfs_dumpacl(int level, struct gpfs_acl *gacl)
199 {
200 gpfs_aclCount_t i;
201 if (gacl==NULL)
202 {
203 DEBUG(0, ("gpfs acl is NULL\n"));
204 return;
205 }
206
207 DEBUG(level, ("gpfs acl: nace: %d, type:%d, version:%d, level:%d, len:%d\n",
208 gacl->acl_nace, gacl->acl_type, gacl->acl_version, gacl->acl_level, gacl->acl_len));
209 for(i=0; i<gacl->acl_nace; i++)
210 {
211 struct gpfs_ace_v4 *gace = gacl->ace_v4 + i;
212 DEBUG(level, ("\tace[%d]: type:%d, flags:0x%x, mask:0x%x, iflags:0x%x, who:%u\n",
213 i, gace->aceType, gace->aceFlags, gace->aceMask,
214 gace->aceIFlags, gace->aceWho));
215 }
216 }
217
218 static struct gpfs_acl *gpfs_getacl_alloc(const char *fname, gpfs_aclType_t type)
219 {
220 struct gpfs_acl *acl;
221 size_t len = 200;
222 int ret;
223 TALLOC_CTX *mem_ctx = talloc_tos();
224
225 acl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, len);
226 if (acl == NULL) {
227 errno = ENOMEM;
228 return NULL;
229 }
230
231 acl->acl_len = len;
232 acl->acl_level = 0;
233 acl->acl_version = 0;
234 acl->acl_type = type;
235
236 ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT, acl);
237 if ((ret != 0) && (errno == ENOSPC)) {
238 struct gpfs_acl *new_acl = (struct gpfs_acl *)TALLOC_SIZE(
239 mem_ctx, acl->acl_len + sizeof(struct gpfs_acl));
240 if (new_acl == NULL) {
241 errno = ENOMEM;
242 return NULL;
243 }
244
245 new_acl->acl_len = acl->acl_len;
246 new_acl->acl_level = acl->acl_level;
247 new_acl->acl_version = acl->acl_version;
248 new_acl->acl_type = acl->acl_type;
249 acl = new_acl;
250
251 ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT, acl);
252 }
253 if (ret != 0)
254 {
255 DEBUG(8, ("smbd_gpfs_getacl failed with %s\n",strerror(errno)));
256 return NULL;
257 }
258
259 return acl;
260 }
261
262 /* Tries to get nfs4 acls and returns SMB ACL allocated.
263 * On failure returns 1 if it got non-NFSv4 ACL to prompt
264 * retry with POSIX ACL checks.
265 * On failure returns -1 if there is system (GPFS) error, check errno.
266 * Returns 0 on success
267 */
268 static int gpfs_get_nfs4_acl(const char *fname, SMB4ACL_T **ppacl)
269 {
270 gpfs_aclCount_t i;
271 struct gpfs_acl *gacl = NULL;
272 DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname));
273
274 /* First get the real acl length */
275 gacl = gpfs_getacl_alloc(fname, 0);
276 if (gacl == NULL) {
277 DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
278 fname, strerror(errno)));
279 return -1;
280 }
281
282 if (gacl->acl_type != GPFS_ACL_TYPE_NFS4) {
283 DEBUG(10, ("Got non-nfsv4 acl\n"));
284 /* Retry with POSIX ACLs check */
285 return 1;
286 }
287
288 *ppacl = smb_create_smb4acl();
289
290 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
291 gacl->acl_len, gacl->acl_level, gacl->acl_version,
292 gacl->acl_nace));
293
294 for (i=0; i<gacl->acl_nace; i++) {
295 struct gpfs_ace_v4 *gace = &gacl->ace_v4[i];
296 SMB_ACE4PROP_T smbace;
297 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
298 "who: %d\n", gace->aceType, gace->aceIFlags,
299 gace->aceFlags, gace->aceMask, gace->aceWho));
300
301 ZERO_STRUCT(smbace);
302 if (gace->aceIFlags & ACE4_IFLAG_SPECIAL_ID) {
303 smbace.flags |= SMB_ACE4_ID_SPECIAL;
304 switch (gace->aceWho) {
305 case ACE4_SPECIAL_OWNER:
306 smbace.who.special_id = SMB_ACE4_WHO_OWNER;
307 break;
308 case ACE4_SPECIAL_GROUP:
309 smbace.who.special_id = SMB_ACE4_WHO_GROUP;
310 break;
311 case ACE4_SPECIAL_EVERYONE:
312 smbace.who.special_id = SMB_ACE4_WHO_EVERYONE;
313 break;
314 default:
315 DEBUG(8, ("invalid special gpfs id %d "
316 "ignored\n", gace->aceWho));
317 continue; /* don't add it */
318 }
319 } else {
320 if (gace->aceFlags & ACE4_FLAG_GROUP_ID)
321 smbace.who.gid = gace->aceWho;
322 else
323 smbace.who.uid = gace->aceWho;
324 }
325
326 /* remove redundent deny entries */
327 if (i > 0 && gace->aceType == SMB_ACE4_ACCESS_DENIED_ACE_TYPE) {
328 struct gpfs_ace_v4 *prev = &gacl->ace_v4[i-1];
329 if (prev->aceType == SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE &&
330 prev->aceFlags == gace->aceFlags &&
331 prev->aceIFlags == gace->aceIFlags &&
332 (gace->aceMask & prev->aceMask) == 0 &&
333 gace->aceWho == prev->aceWho) {
334 /* its redundent - skip it */
335 continue;
336 }
337 }
338
339 smbace.aceType = gace->aceType;
340 smbace.aceFlags = gace->aceFlags;
341 smbace.aceMask = gace->aceMask;
342 smb_add_ace4(*ppacl, &smbace);
343 }
344
345 return 0;
346 }
347
348 static NTSTATUS gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
349 files_struct *fsp, uint32 security_info,
350 struct security_descriptor **ppdesc)
351 {
352 SMB4ACL_T *pacl = NULL;
353 int result;
354 struct gpfs_config_data *config;
355
356 *ppdesc = NULL;
357
358 SMB_VFS_HANDLE_GET_DATA(handle, config,
359 struct gpfs_config_data,
360 return NT_STATUS_INTERNAL_ERROR);
361
362 if (!config->acl) {
363 return SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info, ppdesc);
364 }
365
366 result = gpfs_get_nfs4_acl(fsp->fsp_name->base_name, &pacl);
367
368 if (result == 0)
369 return smb_fget_nt_acl_nfs4(fsp, security_info, ppdesc, pacl);
370
371 if (result > 0) {
372 DEBUG(10, ("retrying with posix acl...\n"));
373 return posix_fget_nt_acl(fsp, security_info, ppdesc);
374 }
375
376 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
377 return map_nt_error_from_unix(errno);
378 }
379
380 static NTSTATUS gpfsacl_get_nt_acl(vfs_handle_struct *handle,
381 const char *name,
382 uint32 security_info, struct security_descriptor **ppdesc)
383 {
384 SMB4ACL_T *pacl = NULL;
385 int result;
386 struct gpfs_config_data *config;
387
388 *ppdesc = NULL;
389
390 SMB_VFS_HANDLE_GET_DATA(handle, config,
391 struct gpfs_config_data,
392 return NT_STATUS_INTERNAL_ERROR);
393
394 if (!config->acl) {
395 return SMB_VFS_NEXT_GET_NT_ACL(handle, name, security_info, ppdesc);
396 }
397
398 result = gpfs_get_nfs4_acl(name, &pacl);
399
400 if (result == 0)
401 return smb_get_nt_acl_nfs4(handle->conn, name, security_info, ppdesc, pacl);
402
403 if (result > 0) {
404 DEBUG(10, ("retrying with posix acl...\n"));
405 return posix_get_nt_acl(handle->conn, name, security_info, ppdesc);
406 }
407
408 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
409 return map_nt_error_from_unix(errno);
410 }
411
412 static bool gpfsacl_process_smbacl(files_struct *fsp, SMB4ACL_T *smbacl)
413 {
414 int ret;
415 gpfs_aclLen_t gacl_len;
416 SMB4ACE_T *smbace;
417 struct gpfs_acl *gacl;
418 TALLOC_CTX *mem_ctx = talloc_tos();
419
420 gacl_len = sizeof(struct gpfs_acl) +
421 (smb_get_naces(smbacl)-1)*sizeof(gpfs_ace_v4_t);
422
423 gacl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, gacl_len);
424 if (gacl == NULL) {
425 DEBUG(0, ("talloc failed\n"));
426 errno = ENOMEM;
427 return False;
428 }
429
430 gacl->acl_len = gacl_len;
431 gacl->acl_level = 0;
432 gacl->acl_version = GPFS_ACL_VERSION_NFS4;
433 gacl->acl_type = GPFS_ACL_TYPE_NFS4;
434 gacl->acl_nace = 0; /* change later... */
435
436 for (smbace=smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
437 struct gpfs_ace_v4 *gace = &gacl->ace_v4[gacl->acl_nace];
438 SMB_ACE4PROP_T *aceprop = smb_get_ace4(smbace);
439
440 gace->aceType = aceprop->aceType;
441 gace->aceFlags = aceprop->aceFlags;
442 gace->aceMask = aceprop->aceMask;
443
444 /*
445 * GPFS can't distinguish between WRITE and APPEND on
446 * files, so one being set without the other is an
447 * error. Sorry for the many ()'s :-)
448 */
449
450 if (!fsp->is_directory
451 &&
452 ((((gace->aceMask & ACE4_MASK_WRITE) == 0)
453 && ((gace->aceMask & ACE4_MASK_APPEND) != 0))
454 ||
455 (((gace->aceMask & ACE4_MASK_WRITE) != 0)
456 && ((gace->aceMask & ACE4_MASK_APPEND) == 0)))
457 &&
458 lp_parm_bool(fsp->conn->params->service, "gpfs",
459 "merge_writeappend", True)) {
460 DEBUG(2, ("vfs_gpfs.c: file [%s]: ACE contains "
461 "WRITE^APPEND, setting WRITE|APPEND\n",
462 fsp_str_dbg(fsp)));
463 gace->aceMask |= ACE4_MASK_WRITE|ACE4_MASK_APPEND;
464 }
465
466 gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
467
468 if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
469 {
470 switch(aceprop->who.special_id)
471 {
472 case SMB_ACE4_WHO_EVERYONE:
473 gace->aceWho = ACE4_SPECIAL_EVERYONE;
474 break;
475 case SMB_ACE4_WHO_OWNER:
476 gace->aceWho = ACE4_SPECIAL_OWNER;
477 break;
478 case SMB_ACE4_WHO_GROUP:
479 gace->aceWho = ACE4_SPECIAL_GROUP;
480 break;
481 default:
482 DEBUG(8, ("unsupported special_id %d\n", aceprop->who.special_id));
483 continue; /* don't add it !!! */
484 }
485 } else {
486 /* just only for the type safety... */
487 if (aceprop->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
488 gace->aceWho = aceprop->who.gid;
489 else
490 gace->aceWho = aceprop->who.uid;
491 }
492
493 gacl->acl_nace++;
494 }
495
496 ret = smbd_gpfs_putacl(fsp->fsp_name->base_name,
497 GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gacl);
498 if (ret != 0) {
499 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno)));
500 gpfs_dumpacl(8, gacl);
501 return False;
502 }
503
504 DEBUG(10, ("gpfs_putacl succeeded\n"));
505 return True;
506 }
507
508 static NTSTATUS gpfsacl_set_nt_acl_internal(files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
509 {
510 struct gpfs_acl *acl;
511 NTSTATUS result = NT_STATUS_ACCESS_DENIED;
512
513 acl = gpfs_getacl_alloc(fsp->fsp_name->base_name, 0);
514 if (acl == NULL)
515 return result;
516
517 if (acl->acl_version&GPFS_ACL_VERSION_NFS4)
518 {
519 if (lp_parm_bool(fsp->conn->params->service, "gpfs",
520 "refuse_dacl_protected", false)
521 && (psd->type&SEC_DESC_DACL_PROTECTED)) {
522 DEBUG(2, ("Rejecting unsupported ACL with DACL_PROTECTED bit set\n"));
523 return NT_STATUS_NOT_SUPPORTED;
524 }
525
526 result = smb_set_nt_acl_nfs4(
527 fsp, security_info_sent, psd,
528 gpfsacl_process_smbacl);
529 } else { /* assume POSIX ACL - by default... */
530 result = set_nt_acl(fsp, security_info_sent, psd);
531 }
532
533 return result;
534 }
535
536 static NTSTATUS gpfsacl_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
537 {
538 struct gpfs_config_data *config;
539
540 SMB_VFS_HANDLE_GET_DATA(handle, config,
541 struct gpfs_config_data,
542 return NT_STATUS_INTERNAL_ERROR);
543
544 if (!config->acl) {
545 return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
546 }
547
548 return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
549 }
550
551 static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl)
552 {
553 SMB_ACL_T result;
554 gpfs_aclCount_t i;
555
556 result = sys_acl_init(pacl->acl_nace);
557 if (result == NULL) {
558 errno = ENOMEM;
559 return NULL;
560 }
561
562 result->count = pacl->acl_nace;
563
564 for (i=0; i<pacl->acl_nace; i++) {
565 struct smb_acl_entry *ace = &result->acl[i];
566 const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
567
568 DEBUG(10, ("Converting type %d id %lu perm %x\n",
569 (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
570 (int)g_ace->ace_perm));
571
572 switch (g_ace->ace_type) {
573 case GPFS_ACL_USER:
574 ace->a_type = SMB_ACL_USER;
575 ace->uid = (uid_t)g_ace->ace_who;
576 break;
577 case GPFS_ACL_USER_OBJ:
578 ace->a_type = SMB_ACL_USER_OBJ;
579 break;
580 case GPFS_ACL_GROUP:
581 ace->a_type = SMB_ACL_GROUP;
582 ace->gid = (gid_t)g_ace->ace_who;
583 break;
584 case GPFS_ACL_GROUP_OBJ:
585 ace->a_type = SMB_ACL_GROUP_OBJ;
586 break;
587 case GPFS_ACL_OTHER:
588 ace->a_type = SMB_ACL_OTHER;
589 break;
590 case GPFS_ACL_MASK:
591 ace->a_type = SMB_ACL_MASK;
592 break;
593 default:
594 DEBUG(10, ("Got invalid ace_type: %d\n",
595 g_ace->ace_type));
596 errno = EINVAL;
597 SAFE_FREE(result);
598 return NULL;
599 }
600
601 ace->a_perm = 0;
602 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
603 SMB_ACL_READ : 0;
604 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
605 SMB_ACL_WRITE : 0;
606 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
607 SMB_ACL_EXECUTE : 0;
608
609 DEBUGADD(10, ("Converted to %d perm %x\n",
610 ace->a_type, ace->a_perm));
611 }
612
613 return result;
614 }
615
616 static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type)
617 {
618 struct gpfs_acl *pacl;
619 SMB_ACL_T result = NULL;
620
621 pacl = gpfs_getacl_alloc(path, type);
622
623 if (pacl == NULL) {
624 DEBUG(10, ("gpfs_getacl failed for %s with %s\n",
625 path, strerror(errno)));
626 if (errno == 0) {
627 errno = EINVAL;
628 }
629 goto done;
630 }
631
632 if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
633 DEBUG(10, ("Got acl version %d, expected %d\n",
634 pacl->acl_version, GPFS_ACL_VERSION_POSIX));
635 errno = EINVAL;
636 goto done;
637 }
638
639 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
640 pacl->acl_len, pacl->acl_level, pacl->acl_version,
641 pacl->acl_nace));
642
643 result = gpfs2smb_acl(pacl);
644 if (result != NULL) {
645 errno = 0;
646 }
647
648 done:
649
650 if (errno != 0) {
651 SAFE_FREE(result);
652 }
653 return result;
654 }
655
656 static SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
657 const char *path_p,
658 SMB_ACL_TYPE_T type)
659 {
660 gpfs_aclType_t gpfs_type;
661 struct gpfs_config_data *config;
662
663 SMB_VFS_HANDLE_GET_DATA(handle, config,
664 struct gpfs_config_data,
665 return NULL);
666
667 if (!config->acl) {
668 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p, type);
669 }
670
671 switch(type) {
672 case SMB_ACL_TYPE_ACCESS:
673 gpfs_type = GPFS_ACL_TYPE_ACCESS;
674 break;
675 case SMB_ACL_TYPE_DEFAULT:
676 gpfs_type = GPFS_ACL_TYPE_DEFAULT;
677 break;
678 default:
679 DEBUG(0, ("Got invalid type: %d\n", type));
680 smb_panic("exiting");
681 }
682
683 return gpfsacl_get_posix_acl(path_p, gpfs_type);
684 }
685
686 static SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
687 files_struct *fsp)
688 {
689 struct gpfs_config_data *config;
690
691 SMB_VFS_HANDLE_GET_DATA(handle, config,
692 struct gpfs_config_data,
693 return NULL);
694
695 if (!config->acl) {
696 return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp);
697 }
698
699 return gpfsacl_get_posix_acl(fsp->fsp_name->base_name,
700 GPFS_ACL_TYPE_ACCESS);
701 }
702
703 static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
704 SMB_ACL_TYPE_T type)
705 {
706 gpfs_aclLen_t len;
707 struct gpfs_acl *result;
708 int i;
709 union gpfs_ace_union
710 {
711 gpfs_ace_v1_t ace_v1[1]; /* when GPFS_ACL_VERSION_POSIX */
712 gpfs_ace_v4_t ace_v4[1]; /* when GPFS_ACL_VERSION_NFS4 */
713 };
714
715 DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
716
717 len = sizeof(struct gpfs_acl) - sizeof(union gpfs_ace_union) +
718 (pacl->count)*sizeof(gpfs_ace_v1_t);
719
720 result = (struct gpfs_acl *)SMB_MALLOC(len);
721 if (result == NULL) {
722 errno = ENOMEM;
723 return result;
724 }
725
726 result->acl_len = len;
727 result->acl_level = 0;
728 result->acl_version = GPFS_ACL_VERSION_POSIX;
729 result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
730 GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
731 result->acl_nace = pacl->count;
732
733 for (i=0; i<pacl->count; i++) {
734 const struct smb_acl_entry *ace = &pacl->acl[i];
735 struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
736
737 DEBUG(10, ("Converting type %d perm %x\n",
738 (int)ace->a_type, (int)ace->a_perm));
739
740 g_ace->ace_perm = 0;
741
742 switch(ace->a_type) {
743 case SMB_ACL_USER:
744 g_ace->ace_type = GPFS_ACL_USER;
745 g_ace->ace_who = (gpfs_uid_t)ace->uid;
746 break;
747 case SMB_ACL_USER_OBJ:
748 g_ace->ace_type = GPFS_ACL_USER_OBJ;
749 g_ace->ace_perm |= ACL_PERM_CONTROL;
750 g_ace->ace_who = 0;
751 break;
752 case SMB_ACL_GROUP:
753 g_ace->ace_type = GPFS_ACL_GROUP;
754 g_ace->ace_who = (gpfs_uid_t)ace->gid;
755 break;
756 case SMB_ACL_GROUP_OBJ:
757 g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
758 g_ace->ace_who = 0;
759 break;
760 case SMB_ACL_MASK:
761 g_ace->ace_type = GPFS_ACL_MASK;
762 g_ace->ace_perm = 0x8f;
763 g_ace->ace_who = 0;
764 break;
765 case SMB_ACL_OTHER:
766 g_ace->ace_type = GPFS_ACL_OTHER;
767 g_ace->ace_who = 0;
768 break;
769 default:
770 DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
771 errno = EINVAL;
772 SAFE_FREE(result);
773 return NULL;
774 }
775
776 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
777 ACL_PERM_READ : 0;
778 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
779 ACL_PERM_WRITE : 0;
780 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
781 ACL_PERM_EXECUTE : 0;
782
783 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
784 g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
785 }
786
787 return result;
788 }
789
790 static int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
791 const char *name,
792 SMB_ACL_TYPE_T type,
793 SMB_ACL_T theacl)
794 {
795 struct gpfs_acl *gpfs_acl;
796 int result;
797 struct gpfs_config_data *config;
798
799 SMB_VFS_HANDLE_GET_DATA(handle, config,
800 struct gpfs_config_data,
801 return -1);
802
803 if (!config->acl) {
804 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name, type, theacl);
805 }
806
807 gpfs_acl = smb2gpfs_acl(theacl, type);
808 if (gpfs_acl == NULL) {
809 return -1;
810 }
811
812 result = smbd_gpfs_putacl((char *)name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gpfs_acl);
813
814 SAFE_FREE(gpfs_acl);
815 return result;
816 }
817
818 static int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
819 files_struct *fsp,
820 SMB_ACL_T theacl)
821 {
822 struct gpfs_config_data *config;
823
824 SMB_VFS_HANDLE_GET_DATA(handle, config,
825 struct gpfs_config_data,
826 return -1);
827
828 if (!config->acl) {
829 return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
830 }
831
832 return gpfsacl_sys_acl_set_file(handle, fsp->fsp_name->base_name,
833 SMB_ACL_TYPE_ACCESS, theacl);
834 }
835
836 static int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
837 const char *path)
838 {
839 struct gpfs_config_data *config;
840
841 SMB_VFS_HANDLE_GET_DATA(handle, config,
842 struct gpfs_config_data,
843 return -1);
844
845 if (!config->acl) {
846 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
847 }
848
849 errno = ENOTSUP;
850 return -1;
851 }
852
853 /*
854 * Assumed: mode bits are shiftable and standard
855 * Output: the new aceMask field for an smb nfs4 ace
856 */
857 static uint32 gpfsacl_mask_filter(uint32 aceType, uint32 aceMask, uint32 rwx)
858 {
859 const uint32 posix_nfs4map[3] = {
860 SMB_ACE4_EXECUTE, /* execute */
861 SMB_ACE4_WRITE_DATA | SMB_ACE4_APPEND_DATA, /* write; GPFS specific */
862 SMB_ACE4_READ_DATA /* read */
863 };
864 int i;
865 uint32_t posix_mask = 0x01;
866 uint32_t posix_bit;
867 uint32_t nfs4_bits;
868
869 for(i=0; i<3; i++) {
870 nfs4_bits = posix_nfs4map[i];
871 posix_bit = rwx & posix_mask;
872
873 if (aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE) {
874 if (posix_bit)
875 aceMask |= nfs4_bits;
876 else
877 aceMask &= ~nfs4_bits;
878 } else {
879 /* add deny bits when suitable */
880 if (!posix_bit)
881 aceMask |= nfs4_bits;
882 else
883 aceMask &= ~nfs4_bits;
884 } /* other ace types are unexpected */
885
886 posix_mask <<= 1;
887 }
888
889 return aceMask;
890 }
891
892 static int gpfsacl_emu_chmod(const char *path, mode_t mode)
893 {
894 SMB4ACL_T *pacl = NULL;
895 int result;
896 bool haveAllowEntry[SMB_ACE4_WHO_EVERYONE + 1] = {False, False, False, False};
897 int i;
898 files_struct fake_fsp; /* TODO: rationalize parametrization */
899 SMB4ACE_T *smbace;
900 NTSTATUS status;
901
902 DEBUG(10, ("gpfsacl_emu_chmod invoked for %s mode %o\n", path, mode));
903
904 result = gpfs_get_nfs4_acl(path, &pacl);
905 if (result)
906 return result;
907
908 if (mode & ~(S_IRWXU | S_IRWXG | S_IRWXO)) {
909 DEBUG(2, ("WARNING: cutting extra mode bits %o on %s\n", mode, path));
910 }
911
912 for (smbace=smb_first_ace4(pacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
913 SMB_ACE4PROP_T *ace = smb_get_ace4(smbace);
914 uint32_t specid = ace->who.special_id;
915
916 if (ace->flags&SMB_ACE4_ID_SPECIAL &&
917 ace->aceType<=SMB_ACE4_ACCESS_DENIED_ACE_TYPE &&
918 specid <= SMB_ACE4_WHO_EVERYONE) {
919
920 uint32_t newMask;
921
922 if (ace->aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE)
923 haveAllowEntry[specid] = True;
924
925 /* mode >> 6 for @owner, mode >> 3 for @group,
926 * mode >> 0 for @everyone */
927 newMask = gpfsacl_mask_filter(ace->aceType, ace->aceMask,
928 mode >> ((SMB_ACE4_WHO_EVERYONE - specid) * 3));
929 if (ace->aceMask!=newMask) {
930 DEBUG(10, ("ace changed for %s (%o -> %o) id=%d\n",
931 path, ace->aceMask, newMask, specid));
932 }
933 ace->aceMask = newMask;
934 }
935 }
936
937 /* make sure we have at least ALLOW entries
938 * for all the 3 special ids (@EVERYONE, @OWNER, @GROUP)
939 * - if necessary
940 */
941 for(i = SMB_ACE4_WHO_OWNER; i<=SMB_ACE4_WHO_EVERYONE; i++) {
942 SMB_ACE4PROP_T ace;
943
944 if (haveAllowEntry[i]==True)
945 continue;
946
947 ZERO_STRUCT(ace);
948 ace.aceType = SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE;
949 ace.flags |= SMB_ACE4_ID_SPECIAL;
950 ace.who.special_id = i;
951
952 if (i==SMB_ACE4_WHO_GROUP) /* not sure it's necessary... */
953 ace.aceFlags |= SMB_ACE4_IDENTIFIER_GROUP;
954
955 ace.aceMask = gpfsacl_mask_filter(ace.aceType, ace.aceMask,
956 mode >> ((SMB_ACE4_WHO_EVERYONE - i) * 3));
957
958 /* don't add unnecessary aces */
959 if (!ace.aceMask)
960 continue;
961
962 /* we add it to the END - as windows expects allow aces */
963 smb_add_ace4(pacl, &ace);
964 DEBUG(10, ("Added ALLOW ace for %s, mode=%o, id=%d, aceMask=%x\n",
965 path, mode, i, ace.aceMask));
966 }
967
968 /* don't add complementary DENY ACEs here */
969 ZERO_STRUCT(fake_fsp);
970 status = create_synthetic_smb_fname(talloc_tos(), path, NULL, NULL,
971 &fake_fsp.fsp_name);
972 if (!NT_STATUS_IS_OK(status)) {
973 errno = map_errno_from_nt_status(status);
974 return -1;
975 }
976 /* put the acl */
977 if (gpfsacl_process_smbacl(&fake_fsp, pacl) == False) {
978 TALLOC_FREE(fake_fsp.fsp_name);
979 return -1;
980 }
981
982 TALLOC_FREE(fake_fsp.fsp_name);
983 return 0; /* ok for [f]chmod */
984 }
985
986 static int vfs_gpfs_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
987 {
988 struct smb_filename *smb_fname_cpath;
989 int rc;
990 NTSTATUS status;
991
992 status = create_synthetic_smb_fname(
993 talloc_tos(), path, NULL, NULL, &smb_fname_cpath);
994
995 if (SMB_VFS_NEXT_STAT(handle, smb_fname_cpath) != 0) {
996 return -1;
997 }
998
999 /* avoid chmod() if possible, to preserve acls */
1000 if ((smb_fname_cpath->st.st_ex_mode & ~S_IFMT) == mode) {
1001 return 0;
1002 }
1003
1004 rc = gpfsacl_emu_chmod(path, mode);
1005 if (rc == 1)
1006 return SMB_VFS_NEXT_CHMOD(handle, path, mode);
1007 return rc;
1008 }
1009
1010 static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
1011 {
1012 SMB_STRUCT_STAT st;
1013 int rc;
1014
1015 if (SMB_VFS_NEXT_FSTAT(handle, fsp, &st) != 0) {
1016 return -1;
1017 }
1018
1019 /* avoid chmod() if possible, to preserve acls */
1020 if ((st.st_ex_mode & ~S_IFMT) == mode) {
1021 return 0;
1022 }
1023
1024 rc = gpfsacl_emu_chmod(fsp->fsp_name->base_name, mode);
1025 if (rc == 1)
1026 return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
1027 return rc;
1028 }
1029
1030 static int gpfs_set_xattr(struct vfs_handle_struct *handle, const char *path,
1031 const char *name, const void *value, size_t size, int flags){
1032 struct xattr_DOSATTRIB dosattrib;
1033 enum ndr_err_code ndr_err;
1034 DATA_BLOB blob;
1035 const char *attrstr = value;
1036 unsigned int dosmode=0;
1037 struct gpfs_winattr attrs;
1038 int ret = 0;
1039 struct gpfs_config_data *config;
1040
1041 SMB_VFS_HANDLE_GET_DATA(handle, config,
1042 struct gpfs_config_data,
1043 return -1);
1044
1045 if (!config->winattr) {
1046 DEBUG(10, ("gpfs_set_xattr:name is %s -> next\n",name));
1047 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1048 }
1049
1050 DEBUG(10, ("gpfs_set_xattr: %s \n",path));
1051
1052 /* Only handle DOS Attributes */
1053 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1054 DEBUG(5, ("gpfs_set_xattr:name is %s\n",name));
1055 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1056 }
1057
1058 blob.data = (uint8_t *)attrstr;
1059 blob.length = size;
1060
1061 ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), &dosattrib,
1062 (ndr_pull_flags_fn_t)ndr_pull_xattr_DOSATTRIB);
1063
1064 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1065 DEBUG(1, ("gpfs_set_xattr: bad ndr decode "
1066 "from EA on file %s: Error = %s\n",
1067 path, ndr_errstr(ndr_err)));
1068 return false;
1069 }
1070
1071 if (dosattrib.version != 3) {
1072 DEBUG(1, ("gpfs_set_xattr: expected dosattrib version 3, got "
1073 "%d\n", (int)dosattrib.version));
1074 return false;
1075 }
1076 if (!(dosattrib.info.info3.valid_flags & XATTR_DOSINFO_ATTRIB)) {
1077 DEBUG(10, ("gpfs_set_xattr: XATTR_DOSINFO_ATTRIB not "
1078 "valid, ignoring\n"));
1079 return true;
1080 }
1081
1082 dosmode = dosattrib.info.info3.attrib;
1083
1084 attrs.winAttrs = 0;
1085 /*Just map RD_ONLY, ARCHIVE, SYSTEM HIDDEN and SPARSE. Ignore the others*/
1086 if (dosmode & FILE_ATTRIBUTE_ARCHIVE){
1087 attrs.winAttrs |= GPFS_WINATTR_ARCHIVE;
1088 }
1089 if (dosmode & FILE_ATTRIBUTE_HIDDEN){
1090 attrs.winAttrs |= GPFS_WINATTR_HIDDEN;
1091 }
1092 if (dosmode & FILE_ATTRIBUTE_SYSTEM){
1093 attrs.winAttrs |= GPFS_WINATTR_SYSTEM;
1094 }
1095 if (dosmode & FILE_ATTRIBUTE_READONLY){
1096 attrs.winAttrs |= GPFS_WINATTR_READONLY;
1097 }
1098 if (dosmode & FILE_ATTRIBUTE_SPARSE) {
1099 attrs.winAttrs |= GPFS_WINATTR_SPARSE_FILE;
1100 }
1101
1102
1103 ret = set_gpfs_winattrs(discard_const_p(char, path),
1104 GPFS_WINATTR_SET_ATTRS, &attrs);
1105 if ( ret == -1){
1106 if (errno == ENOSYS) {
1107 return SMB_VFS_NEXT_SETXATTR(handle, path, name, value,
1108 size, flags);
1109 }
1110
1111 DEBUG(1, ("gpfs_set_xattr:Set GPFS attributes failed %d\n",ret));
1112 return -1;
1113 }
1114
1115 DEBUG(10, ("gpfs_set_xattr:Set attributes: 0x%x\n",attrs.winAttrs));
1116 return 0;
1117 }
1118
1119 static ssize_t gpfs_get_xattr(struct vfs_handle_struct *handle, const char *path,
1120 const char *name, void *value, size_t size){
1121 char *attrstr = value;
1122 unsigned int dosmode = 0;
1123 struct gpfs_winattr attrs;
1124 int ret = 0;
1125 struct gpfs_config_data *config;
1126
1127 SMB_VFS_HANDLE_GET_DATA(handle, config,
1128 struct gpfs_config_data,
1129 return -1);
1130
1131 if (!config->winattr) {
1132 DEBUG(10, ("gpfs_get_xattr:name is %s -> next\n",name));
1133 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1134 }
1135
1136 DEBUG(10, ("gpfs_get_xattr: %s \n",path));
1137
1138 /* Only handle DOS Attributes */
1139 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1140 DEBUG(5, ("gpfs_get_xattr:name is %s\n",name));
1141 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1142 }
1143
1144 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1145 if ( ret == -1){
1146 if (errno == ENOSYS) {
1147 return SMB_VFS_NEXT_GETXATTR(handle, path, name, value,
1148 size);
1149 }
1150
1151 DEBUG(1, ("gpfs_get_xattr: Get GPFS attributes failed: "
1152 "%d (%s)\n", ret, strerror(errno)));
1153 return -1;
1154 }
1155
1156 DEBUG(10, ("gpfs_get_xattr:Got attributes: 0x%x\n",attrs.winAttrs));
1157
1158 /*Just map RD_ONLY, ARCHIVE, SYSTEM, HIDDEN and SPARSE. Ignore the others*/
1159 if (attrs.winAttrs & GPFS_WINATTR_ARCHIVE){
1160 dosmode |= FILE_ATTRIBUTE_ARCHIVE;
1161 }
1162 if (attrs.winAttrs & GPFS_WINATTR_HIDDEN){
1163 dosmode |= FILE_ATTRIBUTE_HIDDEN;
1164 }
1165 if (attrs.winAttrs & GPFS_WINATTR_SYSTEM){
1166 dosmode |= FILE_ATTRIBUTE_SYSTEM;
1167 }
1168 if (attrs.winAttrs & GPFS_WINATTR_READONLY){
1169 dosmode |= FILE_ATTRIBUTE_READONLY;
1170 }
1171 if (attrs.winAttrs & GPFS_WINATTR_SPARSE_FILE) {
1172 dosmode |= FILE_ATTRIBUTE_SPARSE;
1173 }
1174
1175 snprintf(attrstr, size, "0x%2.2x",
1176 (unsigned int)(dosmode & SAMBA_ATTRIBUTES_MASK));
1177 DEBUG(10, ("gpfs_get_xattr: returning %s\n",attrstr));
1178 return 4;
1179 }
1180
1181 static int vfs_gpfs_stat(struct vfs_handle_struct *handle,
1182 struct smb_filename *smb_fname)
1183 {
1184 struct gpfs_winattr attrs;
1185 char *fname = NULL;
1186 NTSTATUS status;
1187 int ret;
1188 struct gpfs_config_data *config;
1189
1190 SMB_VFS_HANDLE_GET_DATA(handle, config,
1191 struct gpfs_config_data,
1192 return -1);
1193
1194 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
1195 if (ret == -1) {
1196 return -1;
1197 }
1198
1199 if (!config->winattr) {
1200 return 0;
1201 }
1202
1203 status = get_full_smb_filename(talloc_tos(), smb_fname, &fname);
1204 if (!NT_STATUS_IS_OK(status)) {
1205 errno = map_errno_from_nt_status(status);
1206 return -1;
1207 }
1208 ret = get_gpfs_winattrs(discard_const_p(char, fname), &attrs);
1209 TALLOC_FREE(fname);
1210 if (ret == 0) {
1211 smb_fname->st.st_ex_calculated_birthtime = false;
1212 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1213 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1214 smb_fname->st.vfs_private = attrs.winAttrs;
1215 }
1216 return 0;
1217 }
1218
1219 static int vfs_gpfs_fstat(struct vfs_handle_struct *handle,
1220 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1221 {
1222 struct gpfs_winattr attrs;
1223 int ret;
1224 struct gpfs_config_data *config;
1225
1226 SMB_VFS_HANDLE_GET_DATA(handle, config,
1227 struct gpfs_config_data,
1228 return -1);
1229
1230 ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
1231 if (ret == -1) {
1232 return -1;
1233 }
1234 if ((fsp->fh == NULL) || (fsp->fh->fd == -1)) {
1235 return 0;
1236 }
1237 if (!config->winattr) {
1238 return 0;
1239 }
1240
1241 ret = smbd_fget_gpfs_winattrs(fsp->fh->fd, &attrs);
1242 if (ret == 0) {
1243 sbuf->st_ex_calculated_birthtime = false;
1244 sbuf->st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1245 sbuf->st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1246 }
1247 return 0;
1248 }
1249
1250 static int vfs_gpfs_lstat(struct vfs_handle_struct *handle,
1251 struct smb_filename *smb_fname)
1252 {
1253 struct gpfs_winattr attrs;
1254 char *path = NULL;
1255 NTSTATUS status;
1256 int ret;
1257 struct gpfs_config_data *config;
1258
1259 SMB_VFS_HANDLE_GET_DATA(handle, config,
1260 struct gpfs_config_data,
1261 return -1);
1262
1263 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1264 if (ret == -1) {
1265 return -1;
1266 }
1267 if (!config->winattr) {
1268 return 0;
1269 }
1270
1271 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1272 if (!NT_STATUS_IS_OK(status)) {
1273 errno = map_errno_from_nt_status(status);
1274 return -1;
1275 }
1276 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1277 TALLOC_FREE(path);
1278 if (ret == 0) {
1279 smb_fname->st.st_ex_calculated_birthtime = false;
1280 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1281 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1282 smb_fname->st.vfs_private = attrs.winAttrs;
1283 }
1284 return 0;
1285 }
1286
1287 static int vfs_gpfs_ntimes(struct vfs_handle_struct *handle,
1288 const struct smb_filename *smb_fname,
1289 struct smb_file_time *ft)
1290 {
1291
1292 struct gpfs_winattr attrs;
1293 int ret;
1294 char *path = NULL;
1295 NTSTATUS status;
1296 struct gpfs_config_data *config;
1297
1298 SMB_VFS_HANDLE_GET_DATA(handle, config,
1299 struct gpfs_config_data,
1300 return -1);
1301
1302 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1303 if(ret == -1){
1304 /* don't complain if access was denied */
1305 if (errno != EPERM && errno != EACCES) {
1306 DEBUG(1,("vfs_gpfs_ntimes: SMB_VFS_NEXT_NTIMES failed:"
1307 "%s", strerror(errno)));
1308 }
1309 return -1;
1310 }
1311
1312 if(null_timespec(ft->create_time)){
1313 DEBUG(10,("vfs_gpfs_ntimes:Create Time is NULL\n"));
1314 return 0;
1315 }
1316
1317 if (!config->winattr) {
1318 return 0;
1319 }
1320
1321 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1322 if (!NT_STATUS_IS_OK(status)) {
1323 errno = map_errno_from_nt_status(status);
1324 return -1;
1325 }
1326
1327 attrs.winAttrs = 0;
1328 attrs.creationTime.tv_sec = ft->create_time.tv_sec;
1329 attrs.creationTime.tv_nsec = ft->create_time.tv_nsec;
1330
1331 ret = set_gpfs_winattrs(discard_const_p(char, path),
1332 GPFS_WINATTR_SET_CREATION_TIME, &attrs);
1333 if(ret == -1 && errno != ENOSYS){
1334 DEBUG(1,("vfs_gpfs_ntimes: set GPFS ntimes failed %d\n",ret));
1335 return -1;
1336 }
1337 return 0;
1338
1339 }
1340
1341 static int vfs_gpfs_fallocate(struct vfs_handle_struct *handle,
1342 struct files_struct *fsp, enum vfs_fallocate_mode mode,
1343 off_t offset, off_t len)
1344 {
1345 int ret;
1346 struct gpfs_config_data *config;
1347
1348 SMB_VFS_HANDLE_GET_DATA(handle, config,
1349 struct gpfs_config_data,
1350 return -1);
1351
1352 if (!config->prealloc) {
1353 /* you should better not run fallocate() on GPFS at all */
1354 errno = ENOTSUP;
1355 return -1;
1356 }
1357
1358 if (mode == VFS_FALLOCATE_KEEP_SIZE) {
1359 DEBUG(10, ("Unsupported VFS_FALLOCATE_KEEP_SIZE\n"));
1360 errno = ENOTSUP;
1361 return -1;
1362 }
1363
1364 ret = smbd_gpfs_prealloc(fsp->fh->fd, offset, len);
1365
1366 if (ret == -1 && errno != ENOSYS) {
1367 DEBUG(0, ("GPFS prealloc failed: %s\n", strerror(errno)));
1368 } else if (ret == -1 && errno == ENOSYS) {
1369 DEBUG(10, ("GPFS prealloc not supported.\n"));
1370 } else {
1371 DEBUG(10, ("GPFS prealloc succeeded.\n"));
1372 }
1373
1374 return ret;
1375 }
1376
1377 static int vfs_gpfs_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1378 off_t len)
1379 {
1380 int result;
1381 struct gpfs_config_data *config;
1382
1383 SMB_VFS_HANDLE_GET_DATA(handle, config,
1384 struct gpfs_config_data,
1385 return -1);
1386
1387 if (!config->ftruncate) {
1388 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1389 }
1390
1391 result = smbd_gpfs_ftruncate(fsp->fh->fd, len);
1392 if ((result == -1) && (errno == ENOSYS)) {
1393 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1394 }
1395 return result;
1396 }
1397
1398 static bool vfs_gpfs_is_offline(struct vfs_handle_struct *handle,
1399 const struct smb_filename *fname,
1400 SMB_STRUCT_STAT *sbuf)
1401 {
1402 struct gpfs_winattr attrs;
1403 char *path = NULL;
1404 NTSTATUS status;
1405 struct gpfs_config_data *config;
1406
1407 SMB_VFS_HANDLE_GET_DATA(handle, config,
1408 struct gpfs_config_data,
1409 return -1);
1410
1411 if (!config->winattr) {
1412 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1413 }
1414
1415 status = get_full_smb_filename(talloc_tos(), fname, &path);
1416 if (!NT_STATUS_IS_OK(status)) {
1417 errno = map_errno_from_nt_status(status);
1418 return -1;
1419 }
1420
1421 if (VALID_STAT(*sbuf)) {
1422 attrs.winAttrs = sbuf->vfs_private;
1423 } else {
1424 int ret;
1425 ret = get_gpfs_winattrs(path, &attrs);
1426
1427 if (ret == -1) {
1428 TALLOC_FREE(path);
1429 return false;
1430 }
1431 }
1432 if ((attrs.winAttrs & GPFS_WINATTR_OFFLINE) != 0) {
1433 DEBUG(10, ("%s is offline\n", path));
1434 TALLOC_FREE(path);
1435 return true;
1436 }
1437 DEBUG(10, ("%s is online\n", path));
1438 TALLOC_FREE(path);
1439 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1440 }
1441
1442 static bool vfs_gpfs_aio_force(struct vfs_handle_struct *handle,
1443 struct files_struct *fsp)
1444 {
1445 return vfs_gpfs_is_offline(handle, fsp->fsp_name, &fsp->fsp_name->st);
1446 }
1447
1448 static ssize_t vfs_gpfs_sendfile(vfs_handle_struct *handle, int tofd,
1449 files_struct *fsp, const DATA_BLOB *hdr,
1450 off_t offset, size_t n)
1451 {
1452 if ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0) {
1453 errno = ENOSYS;
1454 return -1;
1455 }
1456 return SMB_VFS_NEXT_SENDFILE(handle, tofd, fsp, hdr, offset, n);
1457 }
1458
1459 static int vfs_gpfs_connect(struct vfs_handle_struct *handle,
1460 const char *service, const char *user)
1461 {
1462 struct gpfs_config_data *config;
1463 int ret;
1464
1465 smbd_gpfs_lib_init();
1466
1467 ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
1468
1469 if (ret < 0) {
1470 return ret;
1471 }
1472
1473 config = talloc_zero(handle->conn, struct gpfs_config_data);
1474 if (!config) {
1475 SMB_VFS_NEXT_DISCONNECT(handle);
1476 DEBUG(0, ("talloc_zero() failed\n"));
1477 return -1;
1478 }
1479
1480 config->sharemodes = lp_parm_bool(SNUM(handle->conn), "gpfs",
1481 "sharemodes", true);
1482
1483 config->leases = lp_parm_bool(SNUM(handle->conn), "gpfs",
1484 "leases", true);
1485
1486 config->hsm = lp_parm_bool(SNUM(handle->conn), "gpfs",
1487 "hsm", false);
1488
1489 config->syncio = lp_parm_bool(SNUM(handle->conn), "gpfs",
1490 "syncio", false);
1491
1492 config->winattr = lp_parm_bool(SNUM(handle->conn), "gpfs",
1493 "winattr", false);
1494
1495 config->ftruncate = lp_parm_bool(SNUM(handle->conn), "gpfs",
1496 "ftruncate", true);
1497
1498 config->getrealfilename = lp_parm_bool(SNUM(handle->conn), "gpfs",
1499 "getrealfilename", true);
1500
1501 config->dfreequota = lp_parm_bool(SNUM(handle->conn), "gpfs",
1502 "dfreequota", false);
1503
1504 config->prealloc = lp_parm_bool(SNUM(handle->conn), "gpfs",
1505 "prealloc", true);
1506
1507 config->acl = lp_parm_bool(SNUM(handle->conn), "gpfs", "acl", true);
1508
1509 SMB_VFS_HANDLE_SET_DATA(handle, config,
1510 NULL, struct gpfs_config_data,
1511 return -1);
1512
1513 return 0;
1514 }
1515
1516 static int vfs_gpfs_get_quotas(const char *path, uid_t uid, gid_t gid,
1517 int *fset_id,
1518 struct gpfs_quotaInfo *qi_user,
1519 struct gpfs_quotaInfo *qi_group,
1520 struct gpfs_quotaInfo *qi_fset)
1521 {
1522 int err;
1523
1524 err = get_gpfs_fset_id(path, fset_id);
1525 if (err) {
1526 DEBUG(0, ("Get fset id failed, errno %d.\n", errno));
1527 return err;
1528 }
1529
1530 err = get_gpfs_quota(path, GPFS_USRQUOTA, uid, qi_user);
1531 if (err) {
1532 return err;
1533 }
1534
1535 err = get_gpfs_quota(path, GPFS_GRPQUOTA, gid, qi_group);
1536 if (err) {
1537 return err;
1538 }
1539
1540 err = get_gpfs_quota(path, GPFS_FILESETQUOTA, *fset_id, qi_fset);
1541 if (err) {
1542 return err;
1543 }
1544
1545 return 0;
1546 }
1547
1548 static void vfs_gpfs_disk_free_quota(struct gpfs_quotaInfo qi, time_t cur_time,
1549 uint64_t *dfree, uint64_t *dsize)
1550 {
1551 uint64_t usage, limit;
1552
1553 /*
1554 * The quota reporting is done in units of 1024 byte blocks, but
1555 * sys_fsusage uses units of 512 byte blocks, adjust the block number
1556 * accordingly. Also filter possibly negative usage counts from gpfs.
1557 */
1558 usage = qi.blockUsage < 0 ? 0 : (uint64_t)qi.blockUsage * 2;
1559 limit = (uint64_t)qi.blockHardLimit * 2;
1560
1561 /*
1562 * When the grace time for the exceeded soft block quota has been
1563 * exceeded, the soft block quota becomes an additional hard limit.
1564 */
1565 if (qi.blockSoftLimit &&
1566 qi.blockGraceTime && cur_time > qi.blockGraceTime) {
1567 /* report disk as full */
1568 *dfree = 0;
1569 *dsize = MIN(*dsize, usage);
1570 }
1571
1572 if (!qi.blockHardLimit)
1573 return;
1574
1575 if (usage >= limit) {
1576 /* report disk as full */
1577 *dfree = 0;
1578 *dsize = MIN(*dsize, usage);
1579
1580 } else {
1581 /* limit has not been reached, determine "free space" */
1582 *dfree = MIN(*dfree, limit - usage);
1583 *dsize = MIN(*dsize, limit);
1584 }
1585 }
1586
1587 static uint64_t vfs_gpfs_disk_free(vfs_handle_struct *handle, const char *path,
1588 bool small_query, uint64_t *bsize,
1589 uint64_t *dfree, uint64_t *dsize)
1590 {
1591 struct security_unix_token *utok;
1592 struct gpfs_quotaInfo qi_user, qi_group, qi_fset;
1593 struct gpfs_config_data *config;
1594 int err, fset_id;
1595 time_t cur_time;
1596
1597 SMB_VFS_HANDLE_GET_DATA(handle, config, struct gpfs_config_data,
1598 return (uint64_t)-1);
1599 if (!config->dfreequota) {
1600 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1601 bsize, dfree, dsize);
1602 }
1603
1604 err = sys_fsusage(path, dfree, dsize);
1605 if (err) {
1606 DEBUG (0, ("Could not get fs usage, errno %d\n", errno));
1607 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1608 bsize, dfree, dsize);
1609 }
1610
1611 /* sys_fsusage returns units of 512 bytes */
1612 *bsize = 512;
1613
1614 DEBUG(10, ("fs dfree %llu, dsize %llu\n",
1615 (unsigned long long)*dfree, (unsigned long long)*dsize));
1616
1617 utok = handle->conn->session_info->unix_token;
1618 err = vfs_gpfs_get_quotas(path, utok->uid, utok->gid, &fset_id,
1619 &qi_user, &qi_group, &qi_fset);
1620 if (err) {
1621 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1622 bsize, dfree, dsize);
1623 }
1624
1625 cur_time = time(NULL);
1626
1627 /* Adjust free space and size according to quota limits. */
1628 vfs_gpfs_disk_free_quota(qi_user, cur_time, dfree, dsize);
1629 vfs_gpfs_disk_free_quota(qi_group, cur_time, dfree, dsize);
1630
1631 /* Id 0 indicates the default quota, not an actual quota */
1632 if (fset_id != 0) {
1633 vfs_gpfs_disk_free_quota(qi_fset, cur_time, dfree, dsize);
1634 }
1635
1636 disk_norm(small_query, bsize, dfree, dsize);
1637 return *dfree;
1638 }
1639
1640 static uint32_t vfs_gpfs_capabilities(struct vfs_handle_struct *handle,
1641 enum timestamp_set_resolution *p_ts_res)
1642 {
1643 struct gpfs_config_data *config;
1644 uint32_t next;
1645
1646 next = SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
1647
1648 SMB_VFS_HANDLE_GET_DATA(handle, config,
1649 struct gpfs_config_data,
1650 return next);
1651
1652 if (config->hsm) {
1653 next |= FILE_SUPPORTS_REMOTE_STORAGE;
1654 }
1655 return next;
1656 }
1657
1658 static int vfs_gpfs_open(struct vfs_handle_struct *handle,
1659 struct smb_filename *smb_fname, files_struct *fsp,
1660 int flags, mode_t mode)
1661 {
1662 struct gpfs_config_data *config;
1663
1664 SMB_VFS_HANDLE_GET_DATA(handle, config,
1665 struct gpfs_config_data,
1666 return -1);
1667
1668 if (config->syncio) {
1669 flags |= O_SYNC;
1670 }
1671 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1672 }
1673
1674
1675 static struct vfs_fn_pointers vfs_gpfs_fns = {
1676 .connect_fn = vfs_gpfs_connect,
1677 .disk_free_fn = vfs_gpfs_disk_free,
1678 .fs_capabilities_fn = vfs_gpfs_capabilities,
1679 .kernel_flock_fn = vfs_gpfs_kernel_flock,
1680 .linux_setlease_fn = vfs_gpfs_setlease,
1681 .get_real_filename_fn = vfs_gpfs_get_real_filename,
1682 .fget_nt_acl_fn = gpfsacl_fget_nt_acl,
1683 .get_nt_acl_fn = gpfsacl_get_nt_acl,
1684 .fset_nt_acl_fn = gpfsacl_fset_nt_acl,
1685 .sys_acl_get_file_fn = gpfsacl_sys_acl_get_file,
1686 .sys_acl_get_fd_fn = gpfsacl_sys_acl_get_fd,
1687 .sys_acl_set_file_fn = gpfsacl_sys_acl_set_file,
1688 .sys_acl_set_fd_fn = gpfsacl_sys_acl_set_fd,
1689 .sys_acl_delete_def_file_fn = gpfsacl_sys_acl_delete_def_file,
1690 .chmod_fn = vfs_gpfs_chmod,
1691 .fchmod_fn = vfs_gpfs_fchmod,
1692 .close_fn = vfs_gpfs_close,
1693 .setxattr_fn = gpfs_set_xattr,
1694 .getxattr_fn = gpfs_get_xattr,
1695 .stat_fn = vfs_gpfs_stat,
1696 .fstat_fn = vfs_gpfs_fstat,
1697 .lstat_fn = vfs_gpfs_lstat,
1698 .ntimes_fn = vfs_gpfs_ntimes,
1699 .is_offline_fn = vfs_gpfs_is_offline,
1700 .aio_force_fn = vfs_gpfs_aio_force,
1701 .sendfile_fn = vfs_gpfs_sendfile,
1702 .fallocate_fn = vfs_gpfs_fallocate,
1703 .open_fn = vfs_gpfs_open,
1704 .ftruncate_fn = vfs_gpfs_ftruncate
1705 };
1706
1707 NTSTATUS vfs_gpfs_init(void);
1708 NTSTATUS vfs_gpfs_init(void)
1709 {
1710 init_gpfs();
1711
1712 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
1713 &vfs_gpfs_fns);
1714 }