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s3:vfs_gpfs: add no memory check in gpfs2smb_acl()
[Samba/wip.git] / source3 / modules / vfs_gpfs.c
blobe2058e18323d6864929a57db10804cc677e58ba2
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 #include "lib/util/tevent_unix.h"
38
39 struct gpfs_config_data {
40 bool sharemodes;
41 bool leases;
42 bool hsm;
43 bool syncio;
44 bool winattr;
45 bool ftruncate;
46 bool getrealfilename;
47 bool dfreequota;
48 bool prealloc;
49 bool acl;
50 };
51
52
53 static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
54 uint32 share_mode, uint32 access_mask)
55 {
56
57 struct gpfs_config_data *config;
58 int ret = 0;
59
60 SMB_VFS_HANDLE_GET_DATA(handle, config,
61 struct gpfs_config_data,
62 return -1);
63
64 if(!config->sharemodes) {
65 return 0;
66 }
67
68 START_PROFILE(syscall_kernel_flock);
69
70 kernel_flock(fsp->fh->fd, share_mode, access_mask);
71
72 if (!set_gpfs_sharemode(fsp, access_mask, fsp->share_access)) {
73 ret = -1;
74 }
75
76 END_PROFILE(syscall_kernel_flock);
77
78 return ret;
79 }
80
81 static int vfs_gpfs_close(vfs_handle_struct *handle, files_struct *fsp)
82 {
83
84 struct gpfs_config_data *config;
85
86 SMB_VFS_HANDLE_GET_DATA(handle, config,
87 struct gpfs_config_data,
88 return -1);
89
90 if (config->sharemodes && (fsp->fh != NULL) && (fsp->fh->fd != -1)) {
91 set_gpfs_sharemode(fsp, 0, 0);
92 }
93
94 return SMB_VFS_NEXT_CLOSE(handle, fsp);
95 }
96
97 static int vfs_gpfs_setlease(vfs_handle_struct *handle, files_struct *fsp,
98 int leasetype)
99 {
100 struct gpfs_config_data *config;
101 int ret=0;
102
103 SMB_VFS_HANDLE_GET_DATA(handle, config,
104 struct gpfs_config_data,
105 return -1);
106
107 if (linux_set_lease_sighandler(fsp->fh->fd) == -1)
108 return -1;
109
110 START_PROFILE(syscall_linux_setlease);
111
112 if (config->leases) {
113 ret = set_gpfs_lease(fsp->fh->fd,leasetype);
114 }
115
116 END_PROFILE(syscall_linux_setlease);
117
118 return ret;
119 }
120
121 static int vfs_gpfs_get_real_filename(struct vfs_handle_struct *handle,
122 const char *path,
123 const char *name,
124 TALLOC_CTX *mem_ctx,
125 char **found_name)
126 {
127 int result;
128 char *full_path;
129 char real_pathname[PATH_MAX+1];
130 int buflen;
131 bool mangled;
132 struct gpfs_config_data *config;
133
134 SMB_VFS_HANDLE_GET_DATA(handle, config,
135 struct gpfs_config_data,
136 return -1);
137
138 if (!config->getrealfilename) {
139 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
140 mem_ctx, found_name);
141 }
142
143 mangled = mangle_is_mangled(name, handle->conn->params);
144 if (mangled) {
145 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
146 mem_ctx, found_name);
147 }
148
149 full_path = talloc_asprintf(talloc_tos(), "%s/%s", path, name);
150 if (full_path == NULL) {
151 errno = ENOMEM;
152 return -1;
153 }
154
155 buflen = sizeof(real_pathname) - 1;
156
157 result = smbd_gpfs_get_realfilename_path(full_path, real_pathname,
158 &buflen);
159
160 TALLOC_FREE(full_path);
161
162 if ((result == -1) && (errno == ENOSYS)) {
163 return SMB_VFS_NEXT_GET_REAL_FILENAME(
164 handle, path, name, mem_ctx, found_name);
165 }
166
167 if (result == -1) {
168 DEBUG(10, ("smbd_gpfs_get_realfilename_path returned %s\n",
169 strerror(errno)));
170 return -1;
171 }
172
173 /*
174 * GPFS does not necessarily null-terminate the returned path
175 * but instead returns the buffer length in buflen.
176 */
177
178 if (buflen < sizeof(real_pathname)) {
179 real_pathname[buflen] = '\0';
180 } else {
181 real_pathname[sizeof(real_pathname)-1] = '\0';
182 }
183
184 DEBUG(10, ("smbd_gpfs_get_realfilename_path: %s/%s -> %s\n",
185 path, name, real_pathname));
186
187 name = strrchr_m(real_pathname, '/');
188 if (name == NULL) {
189 errno = ENOENT;
190 return -1;
191 }
192
193 *found_name = talloc_strdup(mem_ctx, name+1);
194 if (*found_name == NULL) {
195 errno = ENOMEM;
196 return -1;
197 }
198
199 return 0;
200 }
201
202 static void gpfs_dumpacl(int level, struct gpfs_acl *gacl)
203 {
204 gpfs_aclCount_t i;
205 if (gacl==NULL)
206 {
207 DEBUG(0, ("gpfs acl is NULL\n"));
208 return;
209 }
210
211 DEBUG(level, ("gpfs acl: nace: %d, type:%d, version:%d, level:%d, len:%d\n",
212 gacl->acl_nace, gacl->acl_type, gacl->acl_version, gacl->acl_level, gacl->acl_len));
213 for(i=0; i<gacl->acl_nace; i++)
214 {
215 struct gpfs_ace_v4 *gace = gacl->ace_v4 + i;
216 DEBUG(level, ("\tace[%d]: type:%d, flags:0x%x, mask:0x%x, iflags:0x%x, who:%u\n",
217 i, gace->aceType, gace->aceFlags, gace->aceMask,
218 gace->aceIFlags, gace->aceWho));
219 }
220 }
221
222 static struct gpfs_acl *gpfs_getacl_alloc(const char *fname, gpfs_aclType_t type)
223 {
224 struct gpfs_acl *acl;
225 size_t len = 200;
226 int ret;
227 TALLOC_CTX *mem_ctx = talloc_tos();
228
229 acl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, len);
230 if (acl == NULL) {
231 errno = ENOMEM;
232 return NULL;
233 }
234
235 acl->acl_len = len;
236 acl->acl_level = 0;
237 acl->acl_version = 0;
238 acl->acl_type = type;
239
240 ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT, acl);
241 if ((ret != 0) && (errno == ENOSPC)) {
242 struct gpfs_acl *new_acl = (struct gpfs_acl *)TALLOC_SIZE(
243 mem_ctx, acl->acl_len + sizeof(struct gpfs_acl));
244 if (new_acl == NULL) {
245 talloc_free(acl);
246 errno = ENOMEM;
247 return NULL;
248 }
249
250 new_acl->acl_len = acl->acl_len;
251 new_acl->acl_level = acl->acl_level;
252 new_acl->acl_version = acl->acl_version;
253 new_acl->acl_type = acl->acl_type;
254 talloc_free(acl);
255 acl = new_acl;
256
257 ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT, acl);
258 }
259 if (ret != 0) {
260 DEBUG(8, ("smbd_gpfs_getacl failed with %s\n",strerror(errno)));
261 talloc_free(acl);
262 return NULL;
263 }
264
265 return acl;
266 }
267
268 /* Tries to get nfs4 acls and returns SMB ACL allocated.
269 * On failure returns 1 if it got non-NFSv4 ACL to prompt
270 * retry with POSIX ACL checks.
271 * On failure returns -1 if there is system (GPFS) error, check errno.
272 * Returns 0 on success
273 */
274 static int gpfs_get_nfs4_acl(const char *fname, SMB4ACL_T **ppacl)
275 {
276 gpfs_aclCount_t i;
277 struct gpfs_acl *gacl = NULL;
278 DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname));
279
280 /* First get the real acl length */
281 gacl = gpfs_getacl_alloc(fname, 0);
282 if (gacl == NULL) {
283 DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
284 fname, strerror(errno)));
285 return -1;
286 }
287
288 if (gacl->acl_type != GPFS_ACL_TYPE_NFS4) {
289 DEBUG(10, ("Got non-nfsv4 acl\n"));
290 /* Retry with POSIX ACLs check */
291 talloc_free(gacl);
292 return 1;
293 }
294
295 *ppacl = smb_create_smb4acl();
296
297 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
298 gacl->acl_len, gacl->acl_level, gacl->acl_version,
299 gacl->acl_nace));
300
301 for (i=0; i<gacl->acl_nace; i++) {
302 struct gpfs_ace_v4 *gace = &gacl->ace_v4[i];
303 SMB_ACE4PROP_T smbace;
304 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
305 "who: %d\n", gace->aceType, gace->aceIFlags,
306 gace->aceFlags, gace->aceMask, gace->aceWho));
307
308 ZERO_STRUCT(smbace);
309 if (gace->aceIFlags & ACE4_IFLAG_SPECIAL_ID) {
310 smbace.flags |= SMB_ACE4_ID_SPECIAL;
311 switch (gace->aceWho) {
312 case ACE4_SPECIAL_OWNER:
313 smbace.who.special_id = SMB_ACE4_WHO_OWNER;
314 break;
315 case ACE4_SPECIAL_GROUP:
316 smbace.who.special_id = SMB_ACE4_WHO_GROUP;
317 break;
318 case ACE4_SPECIAL_EVERYONE:
319 smbace.who.special_id = SMB_ACE4_WHO_EVERYONE;
320 break;
321 default:
322 DEBUG(8, ("invalid special gpfs id %d "
323 "ignored\n", gace->aceWho));
324 continue; /* don't add it */
325 }
326 } else {
327 if (gace->aceFlags & ACE4_FLAG_GROUP_ID)
328 smbace.who.gid = gace->aceWho;
329 else
330 smbace.who.uid = gace->aceWho;
331 }
332
333 /* remove redundent deny entries */
334 if (i > 0 && gace->aceType == SMB_ACE4_ACCESS_DENIED_ACE_TYPE) {
335 struct gpfs_ace_v4 *prev = &gacl->ace_v4[i-1];
336 if (prev->aceType == SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE &&
337 prev->aceFlags == gace->aceFlags &&
338 prev->aceIFlags == gace->aceIFlags &&
339 (gace->aceMask & prev->aceMask) == 0 &&
340 gace->aceWho == prev->aceWho) {
341 /* its redundent - skip it */
342 continue;
343 }
344 }
345
346 smbace.aceType = gace->aceType;
347 smbace.aceFlags = gace->aceFlags;
348 smbace.aceMask = gace->aceMask;
349 smb_add_ace4(*ppacl, &smbace);
350 }
351
352 return 0;
353 }
354
355 static NTSTATUS gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
356 files_struct *fsp, uint32 security_info,
357 TALLOC_CTX *mem_ctx,
358 struct security_descriptor **ppdesc)
359 {
360 SMB4ACL_T *pacl = NULL;
361 int result;
362 struct gpfs_config_data *config;
363
364 *ppdesc = NULL;
365
366 SMB_VFS_HANDLE_GET_DATA(handle, config,
367 struct gpfs_config_data,
368 return NT_STATUS_INTERNAL_ERROR);
369
370 if (!config->acl) {
371 return SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info,
372 mem_ctx, ppdesc);
373 }
374
375 result = gpfs_get_nfs4_acl(fsp->fsp_name->base_name, &pacl);
376
377 if (result == 0)
378 return smb_fget_nt_acl_nfs4(fsp, security_info, mem_ctx, ppdesc, pacl);
379
380 if (result > 0) {
381 DEBUG(10, ("retrying with posix acl...\n"));
382 return posix_fget_nt_acl(fsp, security_info, mem_ctx, ppdesc);
383 }
384
385 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
386 return map_nt_error_from_unix(errno);
387 }
388
389 static NTSTATUS gpfsacl_get_nt_acl(vfs_handle_struct *handle,
390 const char *name,
391 uint32 security_info,
392 TALLOC_CTX *mem_ctx, struct security_descriptor **ppdesc)
393 {
394 SMB4ACL_T *pacl = NULL;
395 int result;
396 struct gpfs_config_data *config;
397
398 *ppdesc = NULL;
399
400 SMB_VFS_HANDLE_GET_DATA(handle, config,
401 struct gpfs_config_data,
402 return NT_STATUS_INTERNAL_ERROR);
403
404 if (!config->acl) {
405 return SMB_VFS_NEXT_GET_NT_ACL(handle, name, security_info,
406 mem_ctx, ppdesc);
407 }
408
409 result = gpfs_get_nfs4_acl(name, &pacl);
410
411 if (result == 0)
412 return smb_get_nt_acl_nfs4(handle->conn, name, security_info,
413 mem_ctx, ppdesc, pacl);
414
415 if (result > 0) {
416 DEBUG(10, ("retrying with posix acl...\n"));
417 return posix_get_nt_acl(handle->conn, name, security_info,
418 mem_ctx, ppdesc);
419 }
420
421 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
422 return map_nt_error_from_unix(errno);
423 }
424
425 static bool gpfsacl_process_smbacl(files_struct *fsp, SMB4ACL_T *smbacl)
426 {
427 int ret;
428 gpfs_aclLen_t gacl_len;
429 SMB4ACE_T *smbace;
430 struct gpfs_acl *gacl;
431 TALLOC_CTX *mem_ctx = talloc_tos();
432
433 gacl_len = offsetof(gpfs_acl_t, ace_v4) + smb_get_naces(smbacl) *
434 sizeof(gpfs_ace_v4_t);
435
436 gacl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, gacl_len);
437 if (gacl == NULL) {
438 DEBUG(0, ("talloc failed\n"));
439 errno = ENOMEM;
440 return False;
441 }
442
443 gacl->acl_len = gacl_len;
444 gacl->acl_level = 0;
445 gacl->acl_version = GPFS_ACL_VERSION_NFS4;
446 gacl->acl_type = GPFS_ACL_TYPE_NFS4;
447 gacl->acl_nace = 0; /* change later... */
448
449 for (smbace=smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
450 struct gpfs_ace_v4 *gace = &gacl->ace_v4[gacl->acl_nace];
451 SMB_ACE4PROP_T *aceprop = smb_get_ace4(smbace);
452
453 gace->aceType = aceprop->aceType;
454 gace->aceFlags = aceprop->aceFlags;
455 gace->aceMask = aceprop->aceMask;
456
457 /*
458 * GPFS can't distinguish between WRITE and APPEND on
459 * files, so one being set without the other is an
460 * error. Sorry for the many ()'s :-)
461 */
462
463 if (!fsp->is_directory
464 &&
465 ((((gace->aceMask & ACE4_MASK_WRITE) == 0)
466 && ((gace->aceMask & ACE4_MASK_APPEND) != 0))
467 ||
468 (((gace->aceMask & ACE4_MASK_WRITE) != 0)
469 && ((gace->aceMask & ACE4_MASK_APPEND) == 0)))
470 &&
471 lp_parm_bool(fsp->conn->params->service, "gpfs",
472 "merge_writeappend", True)) {
473 DEBUG(2, ("vfs_gpfs.c: file [%s]: ACE contains "
474 "WRITE^APPEND, setting WRITE|APPEND\n",
475 fsp_str_dbg(fsp)));
476 gace->aceMask |= ACE4_MASK_WRITE|ACE4_MASK_APPEND;
477 }
478
479 gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
480
481 if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
482 {
483 switch(aceprop->who.special_id)
484 {
485 case SMB_ACE4_WHO_EVERYONE:
486 gace->aceWho = ACE4_SPECIAL_EVERYONE;
487 break;
488 case SMB_ACE4_WHO_OWNER:
489 gace->aceWho = ACE4_SPECIAL_OWNER;
490 break;
491 case SMB_ACE4_WHO_GROUP:
492 gace->aceWho = ACE4_SPECIAL_GROUP;
493 break;
494 default:
495 DEBUG(8, ("unsupported special_id %d\n", aceprop->who.special_id));
496 continue; /* don't add it !!! */
497 }
498 } else {
499 /* just only for the type safety... */
500 if (aceprop->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
501 gace->aceWho = aceprop->who.gid;
502 else
503 gace->aceWho = aceprop->who.uid;
504 }
505
506 gacl->acl_nace++;
507 }
508
509 ret = smbd_gpfs_putacl(fsp->fsp_name->base_name,
510 GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gacl);
511 if (ret != 0) {
512 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno)));
513 gpfs_dumpacl(8, gacl);
514 return False;
515 }
516
517 DEBUG(10, ("gpfs_putacl succeeded\n"));
518 return True;
519 }
520
521 static NTSTATUS gpfsacl_set_nt_acl_internal(files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
522 {
523 struct gpfs_acl *acl;
524 NTSTATUS result = NT_STATUS_ACCESS_DENIED;
525
526 acl = gpfs_getacl_alloc(fsp->fsp_name->base_name, 0);
527 if (acl == NULL)
528 return result;
529
530 if (acl->acl_version&GPFS_ACL_VERSION_NFS4)
531 {
532 if (lp_parm_bool(fsp->conn->params->service, "gpfs",
533 "refuse_dacl_protected", false)
534 && (psd->type&SEC_DESC_DACL_PROTECTED)) {
535 DEBUG(2, ("Rejecting unsupported ACL with DACL_PROTECTED bit set\n"));
536 return NT_STATUS_NOT_SUPPORTED;
537 }
538
539 result = smb_set_nt_acl_nfs4(
540 fsp, security_info_sent, psd,
541 gpfsacl_process_smbacl);
542 } else { /* assume POSIX ACL - by default... */
543 result = set_nt_acl(fsp, security_info_sent, psd);
544 }
545
546 return result;
547 }
548
549 static NTSTATUS gpfsacl_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
550 {
551 struct gpfs_config_data *config;
552
553 SMB_VFS_HANDLE_GET_DATA(handle, config,
554 struct gpfs_config_data,
555 return NT_STATUS_INTERNAL_ERROR);
556
557 if (!config->acl) {
558 return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
559 }
560
561 return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
562 }
563
564 static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl, TALLOC_CTX *mem_ctx)
565 {
566 SMB_ACL_T result;
567 gpfs_aclCount_t i;
568
569 result = sys_acl_init(mem_ctx);
570 if (result == NULL) {
571 errno = ENOMEM;
572 return NULL;
573 }
574
575 result->count = pacl->acl_nace;
576 result->acl = talloc_realloc(result, result->acl, struct smb_acl_entry,
577 result->count);
578 if (result->acl == NULL) {
579 TALLOC_FREE(result);
580 errno = ENOMEM;
581 return NULL;
582 }
583
584 for (i=0; i<pacl->acl_nace; i++) {
585 struct smb_acl_entry *ace = &result->acl[i];
586 const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
587
588 DEBUG(10, ("Converting type %d id %lu perm %x\n",
589 (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
590 (int)g_ace->ace_perm));
591
592 switch (g_ace->ace_type) {
593 case GPFS_ACL_USER:
594 ace->a_type = SMB_ACL_USER;
595 ace->info.user.uid = (uid_t)g_ace->ace_who;
596 break;
597 case GPFS_ACL_USER_OBJ:
598 ace->a_type = SMB_ACL_USER_OBJ;
599 break;
600 case GPFS_ACL_GROUP:
601 ace->a_type = SMB_ACL_GROUP;
602 ace->info.group.gid = (gid_t)g_ace->ace_who;
603 break;
604 case GPFS_ACL_GROUP_OBJ:
605 ace->a_type = SMB_ACL_GROUP_OBJ;
606 break;
607 case GPFS_ACL_OTHER:
608 ace->a_type = SMB_ACL_OTHER;
609 break;
610 case GPFS_ACL_MASK:
611 ace->a_type = SMB_ACL_MASK;
612 break;
613 default:
614 DEBUG(10, ("Got invalid ace_type: %d\n",
615 g_ace->ace_type));
616 TALLOC_FREE(result);
617 errno = EINVAL;
618 return NULL;
619 }
620
621 ace->a_perm = 0;
622 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
623 SMB_ACL_READ : 0;
624 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
625 SMB_ACL_WRITE : 0;
626 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
627 SMB_ACL_EXECUTE : 0;
628
629 DEBUGADD(10, ("Converted to %d perm %x\n",
630 ace->a_type, ace->a_perm));
631 }
632
633 return result;
634 }
635
636 static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type,
637 TALLOC_CTX *mem_ctx)
638 {
639 struct gpfs_acl *pacl;
640 SMB_ACL_T result = NULL;
641
642 pacl = gpfs_getacl_alloc(path, type);
643
644 if (pacl == NULL) {
645 DEBUG(10, ("gpfs_getacl failed for %s with %s\n",
646 path, strerror(errno)));
647 if (errno == 0) {
648 errno = EINVAL;
649 }
650 goto done;
651 }
652
653 if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
654 DEBUG(10, ("Got acl version %d, expected %d\n",
655 pacl->acl_version, GPFS_ACL_VERSION_POSIX));
656 errno = EINVAL;
657 goto done;
658 }
659
660 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
661 pacl->acl_len, pacl->acl_level, pacl->acl_version,
662 pacl->acl_nace));
663
664 result = gpfs2smb_acl(pacl, mem_ctx);
665 if (result != NULL) {
666 errno = 0;
667 }
668
669 done:
670
671 if (pacl != NULL) {
672 talloc_free(pacl);
673 }
674 if (errno != 0) {
675 TALLOC_FREE(result);
676 }
677 return result;
678 }
679
680 static SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
681 const char *path_p,
682 SMB_ACL_TYPE_T type,
683 TALLOC_CTX *mem_ctx)
684 {
685 gpfs_aclType_t gpfs_type;
686 struct gpfs_config_data *config;
687
688 SMB_VFS_HANDLE_GET_DATA(handle, config,
689 struct gpfs_config_data,
690 return NULL);
691
692 if (!config->acl) {
693 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p,
694 type, mem_ctx);
695 }
696
697 switch(type) {
698 case SMB_ACL_TYPE_ACCESS:
699 gpfs_type = GPFS_ACL_TYPE_ACCESS;
700 break;
701 case SMB_ACL_TYPE_DEFAULT:
702 gpfs_type = GPFS_ACL_TYPE_DEFAULT;
703 break;
704 default:
705 DEBUG(0, ("Got invalid type: %d\n", type));
706 smb_panic("exiting");
707 }
708
709 return gpfsacl_get_posix_acl(path_p, gpfs_type, mem_ctx);
710 }
711
712 static SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
713 files_struct *fsp,
714 TALLOC_CTX *mem_ctx)
715 {
716 struct gpfs_config_data *config;
717
718 SMB_VFS_HANDLE_GET_DATA(handle, config,
719 struct gpfs_config_data,
720 return NULL);
721
722 if (!config->acl) {
723 return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
724 }
725
726 return gpfsacl_get_posix_acl(fsp->fsp_name->base_name,
727 GPFS_ACL_TYPE_ACCESS, mem_ctx);
728 }
729
730 static int gpfsacl_sys_acl_blob_get_file(vfs_handle_struct *handle,
731 const char *path_p,
732 TALLOC_CTX *mem_ctx,
733 char **blob_description,
734 DATA_BLOB *blob)
735 {
736 struct gpfs_config_data *config;
737 SMB4ACL_T *pacl = NULL;
738 int result;
739
740 SMB_VFS_HANDLE_GET_DATA(handle, config,
741 struct gpfs_config_data,
742 return -1);
743
744 if (!config->acl) {
745 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, path_p,
746 mem_ctx,
747 blob_description,
748 blob);
749 }
750
751 result = gpfs_get_nfs4_acl(path_p, &pacl);
752 if (result == 0) {
753 /* We don't have a way to linearlise the NFS4 ACL
754 * right now, and it is much closer to the NT ACL
755 * anyway */
756 errno = EINVAL;
757 return -1;
758 }
759
760 return posix_sys_acl_blob_get_file(handle, path_p, mem_ctx,
761 blob_description, blob);
762 }
763
764 static int gpfsacl_sys_acl_blob_get_fd(vfs_handle_struct *handle,
765 files_struct *fsp,
766 TALLOC_CTX *mem_ctx,
767 char **blob_description,
768 DATA_BLOB *blob)
769 {
770 struct gpfs_config_data *config;
771 SMB4ACL_T *pacl = NULL;
772 int result;
773
774 SMB_VFS_HANDLE_GET_DATA(handle, config,
775 struct gpfs_config_data,
776 return -1);
777
778 if (!config->acl) {
779 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
780 blob_description, blob);
781 }
782
783 result = gpfs_get_nfs4_acl(fsp->fsp_name->base_name, &pacl);
784 if (result == 0) {
785 /* We don't have a way to linearlise the NFS4 ACL
786 * right now, and it is much closer to the NT ACL
787 * anyway */
788 errno = EINVAL;
789 return -1;
790 }
791
792 return posix_sys_acl_blob_get_fd(handle, fsp, mem_ctx,
793 blob_description, blob);
794 }
795
796 static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
797 SMB_ACL_TYPE_T type)
798 {
799 gpfs_aclLen_t len;
800 struct gpfs_acl *result;
801 int i;
802
803 DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
804
805 len = offsetof(gpfs_acl_t, ace_v1) + (pacl->count) *
806 sizeof(gpfs_ace_v1_t);
807
808 result = (struct gpfs_acl *)SMB_MALLOC(len);
809 if (result == NULL) {
810 errno = ENOMEM;
811 return result;
812 }
813
814 result->acl_len = len;
815 result->acl_level = 0;
816 result->acl_version = GPFS_ACL_VERSION_POSIX;
817 result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
818 GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
819 result->acl_nace = pacl->count;
820
821 for (i=0; i<pacl->count; i++) {
822 const struct smb_acl_entry *ace = &pacl->acl[i];
823 struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
824
825 DEBUG(10, ("Converting type %d perm %x\n",
826 (int)ace->a_type, (int)ace->a_perm));
827
828 g_ace->ace_perm = 0;
829
830 switch(ace->a_type) {
831 case SMB_ACL_USER:
832 g_ace->ace_type = GPFS_ACL_USER;
833 g_ace->ace_who = (gpfs_uid_t)ace->info.user.uid;
834 break;
835 case SMB_ACL_USER_OBJ:
836 g_ace->ace_type = GPFS_ACL_USER_OBJ;
837 g_ace->ace_perm |= ACL_PERM_CONTROL;
838 g_ace->ace_who = 0;
839 break;
840 case SMB_ACL_GROUP:
841 g_ace->ace_type = GPFS_ACL_GROUP;
842 g_ace->ace_who = (gpfs_uid_t)ace->info.group.gid;
843 break;
844 case SMB_ACL_GROUP_OBJ:
845 g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
846 g_ace->ace_who = 0;
847 break;
848 case SMB_ACL_MASK:
849 g_ace->ace_type = GPFS_ACL_MASK;
850 g_ace->ace_perm = 0x8f;
851 g_ace->ace_who = 0;
852 break;
853 case SMB_ACL_OTHER:
854 g_ace->ace_type = GPFS_ACL_OTHER;
855 g_ace->ace_who = 0;
856 break;
857 default:
858 DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
859 errno = EINVAL;
860 SAFE_FREE(result);
861 return NULL;
862 }
863
864 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
865 ACL_PERM_READ : 0;
866 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
867 ACL_PERM_WRITE : 0;
868 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
869 ACL_PERM_EXECUTE : 0;
870
871 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
872 g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
873 }
874
875 return result;
876 }
877
878 static int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
879 const char *name,
880 SMB_ACL_TYPE_T type,
881 SMB_ACL_T theacl)
882 {
883 struct gpfs_acl *gpfs_acl;
884 int result;
885 struct gpfs_config_data *config;
886
887 SMB_VFS_HANDLE_GET_DATA(handle, config,
888 struct gpfs_config_data,
889 return -1);
890
891 if (!config->acl) {
892 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name, type, theacl);
893 }
894
895 gpfs_acl = smb2gpfs_acl(theacl, type);
896 if (gpfs_acl == NULL) {
897 return -1;
898 }
899
900 result = smbd_gpfs_putacl((char *)name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gpfs_acl);
901
902 SAFE_FREE(gpfs_acl);
903 return result;
904 }
905
906 static int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
907 files_struct *fsp,
908 SMB_ACL_T theacl)
909 {
910 struct gpfs_config_data *config;
911
912 SMB_VFS_HANDLE_GET_DATA(handle, config,
913 struct gpfs_config_data,
914 return -1);
915
916 if (!config->acl) {
917 return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
918 }
919
920 return gpfsacl_sys_acl_set_file(handle, fsp->fsp_name->base_name,
921 SMB_ACL_TYPE_ACCESS, theacl);
922 }
923
924 static int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
925 const char *path)
926 {
927 struct gpfs_config_data *config;
928
929 SMB_VFS_HANDLE_GET_DATA(handle, config,
930 struct gpfs_config_data,
931 return -1);
932
933 if (!config->acl) {
934 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
935 }
936
937 errno = ENOTSUP;
938 return -1;
939 }
940
941 /*
942 * Assumed: mode bits are shiftable and standard
943 * Output: the new aceMask field for an smb nfs4 ace
944 */
945 static uint32 gpfsacl_mask_filter(uint32 aceType, uint32 aceMask, uint32 rwx)
946 {
947 const uint32 posix_nfs4map[3] = {
948 SMB_ACE4_EXECUTE, /* execute */
949 SMB_ACE4_WRITE_DATA | SMB_ACE4_APPEND_DATA, /* write; GPFS specific */
950 SMB_ACE4_READ_DATA /* read */
951 };
952 int i;
953 uint32_t posix_mask = 0x01;
954 uint32_t posix_bit;
955 uint32_t nfs4_bits;
956
957 for(i=0; i<3; i++) {
958 nfs4_bits = posix_nfs4map[i];
959 posix_bit = rwx & posix_mask;
960
961 if (aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE) {
962 if (posix_bit)
963 aceMask |= nfs4_bits;
964 else
965 aceMask &= ~nfs4_bits;
966 } else {
967 /* add deny bits when suitable */
968 if (!posix_bit)
969 aceMask |= nfs4_bits;
970 else
971 aceMask &= ~nfs4_bits;
972 } /* other ace types are unexpected */
973
974 posix_mask <<= 1;
975 }
976
977 return aceMask;
978 }
979
980 static int gpfsacl_emu_chmod(const char *path, mode_t mode)
981 {
982 SMB4ACL_T *pacl = NULL;
983 int result;
984 bool haveAllowEntry[SMB_ACE4_WHO_EVERYONE + 1] = {False, False, False, False};
985 int i;
986 files_struct fake_fsp; /* TODO: rationalize parametrization */
987 SMB4ACE_T *smbace;
988 NTSTATUS status;
989
990 DEBUG(10, ("gpfsacl_emu_chmod invoked for %s mode %o\n", path, mode));
991
992 result = gpfs_get_nfs4_acl(path, &pacl);
993 if (result)
994 return result;
995
996 if (mode & ~(S_IRWXU | S_IRWXG | S_IRWXO)) {
997 DEBUG(2, ("WARNING: cutting extra mode bits %o on %s\n", mode, path));
998 }
999
1000 for (smbace=smb_first_ace4(pacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
1001 SMB_ACE4PROP_T *ace = smb_get_ace4(smbace);
1002 uint32_t specid = ace->who.special_id;
1003
1004 if (ace->flags&SMB_ACE4_ID_SPECIAL &&
1005 ace->aceType<=SMB_ACE4_ACCESS_DENIED_ACE_TYPE &&
1006 specid <= SMB_ACE4_WHO_EVERYONE) {
1007
1008 uint32_t newMask;
1009
1010 if (ace->aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE)
1011 haveAllowEntry[specid] = True;
1012
1013 /* mode >> 6 for @owner, mode >> 3 for @group,
1014 * mode >> 0 for @everyone */
1015 newMask = gpfsacl_mask_filter(ace->aceType, ace->aceMask,
1016 mode >> ((SMB_ACE4_WHO_EVERYONE - specid) * 3));
1017 if (ace->aceMask!=newMask) {
1018 DEBUG(10, ("ace changed for %s (%o -> %o) id=%d\n",
1019 path, ace->aceMask, newMask, specid));
1020 }
1021 ace->aceMask = newMask;
1022 }
1023 }
1024
1025 /* make sure we have at least ALLOW entries
1026 * for all the 3 special ids (@EVERYONE, @OWNER, @GROUP)
1027 * - if necessary
1028 */
1029 for(i = SMB_ACE4_WHO_OWNER; i<=SMB_ACE4_WHO_EVERYONE; i++) {
1030 SMB_ACE4PROP_T ace;
1031
1032 if (haveAllowEntry[i]==True)
1033 continue;
1034
1035 ZERO_STRUCT(ace);
1036 ace.aceType = SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE;
1037 ace.flags |= SMB_ACE4_ID_SPECIAL;
1038 ace.who.special_id = i;
1039
1040 if (i==SMB_ACE4_WHO_GROUP) /* not sure it's necessary... */
1041 ace.aceFlags |= SMB_ACE4_IDENTIFIER_GROUP;
1042
1043 ace.aceMask = gpfsacl_mask_filter(ace.aceType, ace.aceMask,
1044 mode >> ((SMB_ACE4_WHO_EVERYONE - i) * 3));
1045
1046 /* don't add unnecessary aces */
1047 if (!ace.aceMask)
1048 continue;
1049
1050 /* we add it to the END - as windows expects allow aces */
1051 smb_add_ace4(pacl, &ace);
1052 DEBUG(10, ("Added ALLOW ace for %s, mode=%o, id=%d, aceMask=%x\n",
1053 path, mode, i, ace.aceMask));
1054 }
1055
1056 /* don't add complementary DENY ACEs here */
1057 ZERO_STRUCT(fake_fsp);
1058 status = create_synthetic_smb_fname(talloc_tos(), path, NULL, NULL,
1059 &fake_fsp.fsp_name);
1060 if (!NT_STATUS_IS_OK(status)) {
1061 errno = map_errno_from_nt_status(status);
1062 return -1;
1063 }
1064 /* put the acl */
1065 if (gpfsacl_process_smbacl(&fake_fsp, pacl) == False) {
1066 TALLOC_FREE(fake_fsp.fsp_name);
1067 return -1;
1068 }
1069
1070 TALLOC_FREE(fake_fsp.fsp_name);
1071 return 0; /* ok for [f]chmod */
1072 }
1073
1074 static int vfs_gpfs_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
1075 {
1076 struct smb_filename *smb_fname_cpath;
1077 int rc;
1078 NTSTATUS status;
1079
1080 status = create_synthetic_smb_fname(
1081 talloc_tos(), path, NULL, NULL, &smb_fname_cpath);
1082
1083 if (SMB_VFS_NEXT_STAT(handle, smb_fname_cpath) != 0) {
1084 return -1;
1085 }
1086
1087 /* avoid chmod() if possible, to preserve acls */
1088 if ((smb_fname_cpath->st.st_ex_mode & ~S_IFMT) == mode) {
1089 return 0;
1090 }
1091
1092 rc = gpfsacl_emu_chmod(path, mode);
1093 if (rc == 1)
1094 return SMB_VFS_NEXT_CHMOD(handle, path, mode);
1095 return rc;
1096 }
1097
1098 static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
1099 {
1100 SMB_STRUCT_STAT st;
1101 int rc;
1102
1103 if (SMB_VFS_NEXT_FSTAT(handle, fsp, &st) != 0) {
1104 return -1;
1105 }
1106
1107 /* avoid chmod() if possible, to preserve acls */
1108 if ((st.st_ex_mode & ~S_IFMT) == mode) {
1109 return 0;
1110 }
1111
1112 rc = gpfsacl_emu_chmod(fsp->fsp_name->base_name, mode);
1113 if (rc == 1)
1114 return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
1115 return rc;
1116 }
1117
1118 static int gpfs_set_xattr(struct vfs_handle_struct *handle, const char *path,
1119 const char *name, const void *value, size_t size, int flags){
1120 struct xattr_DOSATTRIB dosattrib;
1121 enum ndr_err_code ndr_err;
1122 DATA_BLOB blob;
1123 const char *attrstr = value;
1124 unsigned int dosmode=0;
1125 struct gpfs_winattr attrs;
1126 int ret = 0;
1127 struct gpfs_config_data *config;
1128
1129 SMB_VFS_HANDLE_GET_DATA(handle, config,
1130 struct gpfs_config_data,
1131 return -1);
1132
1133 if (!config->winattr) {
1134 DEBUG(10, ("gpfs_set_xattr:name is %s -> next\n",name));
1135 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1136 }
1137
1138 DEBUG(10, ("gpfs_set_xattr: %s \n",path));
1139
1140 /* Only handle DOS Attributes */
1141 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1142 DEBUG(5, ("gpfs_set_xattr:name is %s\n",name));
1143 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1144 }
1145
1146 blob.data = (uint8_t *)attrstr;
1147 blob.length = size;
1148
1149 ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), &dosattrib,
1150 (ndr_pull_flags_fn_t)ndr_pull_xattr_DOSATTRIB);
1151
1152 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1153 DEBUG(1, ("gpfs_set_xattr: bad ndr decode "
1154 "from EA on file %s: Error = %s\n",
1155 path, ndr_errstr(ndr_err)));
1156 return false;
1157 }
1158
1159 if (dosattrib.version != 3) {
1160 DEBUG(1, ("gpfs_set_xattr: expected dosattrib version 3, got "
1161 "%d\n", (int)dosattrib.version));
1162 return false;
1163 }
1164 if (!(dosattrib.info.info3.valid_flags & XATTR_DOSINFO_ATTRIB)) {
1165 DEBUG(10, ("gpfs_set_xattr: XATTR_DOSINFO_ATTRIB not "
1166 "valid, ignoring\n"));
1167 return true;
1168 }
1169
1170 dosmode = dosattrib.info.info3.attrib;
1171
1172 attrs.winAttrs = 0;
1173 /*Just map RD_ONLY, ARCHIVE, SYSTEM HIDDEN and SPARSE. Ignore the others*/
1174 if (dosmode & FILE_ATTRIBUTE_ARCHIVE){
1175 attrs.winAttrs |= GPFS_WINATTR_ARCHIVE;
1176 }
1177 if (dosmode & FILE_ATTRIBUTE_HIDDEN){
1178 attrs.winAttrs |= GPFS_WINATTR_HIDDEN;
1179 }
1180 if (dosmode & FILE_ATTRIBUTE_SYSTEM){
1181 attrs.winAttrs |= GPFS_WINATTR_SYSTEM;
1182 }
1183 if (dosmode & FILE_ATTRIBUTE_READONLY){
1184 attrs.winAttrs |= GPFS_WINATTR_READONLY;
1185 }
1186 if (dosmode & FILE_ATTRIBUTE_SPARSE) {
1187 attrs.winAttrs |= GPFS_WINATTR_SPARSE_FILE;
1188 }
1189
1190
1191 ret = set_gpfs_winattrs(discard_const_p(char, path),
1192 GPFS_WINATTR_SET_ATTRS, &attrs);
1193 if ( ret == -1){
1194 if (errno == ENOSYS) {
1195 return SMB_VFS_NEXT_SETXATTR(handle, path, name, value,
1196 size, flags);
1197 }
1198
1199 DEBUG(1, ("gpfs_set_xattr:Set GPFS attributes failed %d\n",ret));
1200 return -1;
1201 }
1202
1203 DEBUG(10, ("gpfs_set_xattr:Set attributes: 0x%x\n",attrs.winAttrs));
1204 return 0;
1205 }
1206
1207 static ssize_t gpfs_get_xattr(struct vfs_handle_struct *handle, const char *path,
1208 const char *name, void *value, size_t size){
1209 char *attrstr = value;
1210 unsigned int dosmode = 0;
1211 struct gpfs_winattr attrs;
1212 int ret = 0;
1213 struct gpfs_config_data *config;
1214
1215 SMB_VFS_HANDLE_GET_DATA(handle, config,
1216 struct gpfs_config_data,
1217 return -1);
1218
1219 if (!config->winattr) {
1220 DEBUG(10, ("gpfs_get_xattr:name is %s -> next\n",name));
1221 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1222 }
1223
1224 DEBUG(10, ("gpfs_get_xattr: %s \n",path));
1225
1226 /* Only handle DOS Attributes */
1227 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1228 DEBUG(5, ("gpfs_get_xattr:name is %s\n",name));
1229 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1230 }
1231
1232 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1233 if ( ret == -1){
1234 if (errno == ENOSYS) {
1235 return SMB_VFS_NEXT_GETXATTR(handle, path, name, value,
1236 size);
1237 }
1238
1239 DEBUG(1, ("gpfs_get_xattr: Get GPFS attributes failed: "
1240 "%d (%s)\n", ret, strerror(errno)));
1241 return -1;
1242 }
1243
1244 DEBUG(10, ("gpfs_get_xattr:Got attributes: 0x%x\n",attrs.winAttrs));
1245
1246 /*Just map RD_ONLY, ARCHIVE, SYSTEM, HIDDEN and SPARSE. Ignore the others*/
1247 if (attrs.winAttrs & GPFS_WINATTR_ARCHIVE){
1248 dosmode |= FILE_ATTRIBUTE_ARCHIVE;
1249 }
1250 if (attrs.winAttrs & GPFS_WINATTR_HIDDEN){
1251 dosmode |= FILE_ATTRIBUTE_HIDDEN;
1252 }
1253 if (attrs.winAttrs & GPFS_WINATTR_SYSTEM){
1254 dosmode |= FILE_ATTRIBUTE_SYSTEM;
1255 }
1256 if (attrs.winAttrs & GPFS_WINATTR_READONLY){
1257 dosmode |= FILE_ATTRIBUTE_READONLY;
1258 }
1259 if (attrs.winAttrs & GPFS_WINATTR_SPARSE_FILE) {
1260 dosmode |= FILE_ATTRIBUTE_SPARSE;
1261 }
1262
1263 snprintf(attrstr, size, "0x%2.2x",
1264 (unsigned int)(dosmode & SAMBA_ATTRIBUTES_MASK));
1265 DEBUG(10, ("gpfs_get_xattr: returning %s\n",attrstr));
1266 return 4;
1267 }
1268
1269 static int vfs_gpfs_stat(struct vfs_handle_struct *handle,
1270 struct smb_filename *smb_fname)
1271 {
1272 struct gpfs_winattr attrs;
1273 char *fname = NULL;
1274 NTSTATUS status;
1275 int ret;
1276 struct gpfs_config_data *config;
1277
1278 SMB_VFS_HANDLE_GET_DATA(handle, config,
1279 struct gpfs_config_data,
1280 return -1);
1281
1282 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
1283 if (ret == -1) {
1284 return -1;
1285 }
1286
1287 if (!config->winattr) {
1288 return 0;
1289 }
1290
1291 status = get_full_smb_filename(talloc_tos(), smb_fname, &fname);
1292 if (!NT_STATUS_IS_OK(status)) {
1293 errno = map_errno_from_nt_status(status);
1294 return -1;
1295 }
1296 ret = get_gpfs_winattrs(discard_const_p(char, fname), &attrs);
1297 TALLOC_FREE(fname);
1298 if (ret == 0) {
1299 smb_fname->st.st_ex_calculated_birthtime = false;
1300 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1301 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1302 smb_fname->st.vfs_private = attrs.winAttrs;
1303 }
1304 return 0;
1305 }
1306
1307 static int vfs_gpfs_fstat(struct vfs_handle_struct *handle,
1308 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1309 {
1310 struct gpfs_winattr attrs;
1311 int ret;
1312 struct gpfs_config_data *config;
1313
1314 SMB_VFS_HANDLE_GET_DATA(handle, config,
1315 struct gpfs_config_data,
1316 return -1);
1317
1318 ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
1319 if (ret == -1) {
1320 return -1;
1321 }
1322 if ((fsp->fh == NULL) || (fsp->fh->fd == -1)) {
1323 return 0;
1324 }
1325 if (!config->winattr) {
1326 return 0;
1327 }
1328
1329 ret = smbd_fget_gpfs_winattrs(fsp->fh->fd, &attrs);
1330 if (ret == 0) {
1331 sbuf->st_ex_calculated_birthtime = false;
1332 sbuf->st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1333 sbuf->st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1334 }
1335 return 0;
1336 }
1337
1338 static int vfs_gpfs_lstat(struct vfs_handle_struct *handle,
1339 struct smb_filename *smb_fname)
1340 {
1341 struct gpfs_winattr attrs;
1342 char *path = NULL;
1343 NTSTATUS status;
1344 int ret;
1345 struct gpfs_config_data *config;
1346
1347 SMB_VFS_HANDLE_GET_DATA(handle, config,
1348 struct gpfs_config_data,
1349 return -1);
1350
1351 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1352 if (ret == -1) {
1353 return -1;
1354 }
1355 if (!config->winattr) {
1356 return 0;
1357 }
1358
1359 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1360 if (!NT_STATUS_IS_OK(status)) {
1361 errno = map_errno_from_nt_status(status);
1362 return -1;
1363 }
1364 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1365 TALLOC_FREE(path);
1366 if (ret == 0) {
1367 smb_fname->st.st_ex_calculated_birthtime = false;
1368 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1369 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1370 smb_fname->st.vfs_private = attrs.winAttrs;
1371 }
1372 return 0;
1373 }
1374
1375 static int vfs_gpfs_ntimes(struct vfs_handle_struct *handle,
1376 const struct smb_filename *smb_fname,
1377 struct smb_file_time *ft)
1378 {
1379
1380 struct gpfs_winattr attrs;
1381 int ret;
1382 char *path = NULL;
1383 NTSTATUS status;
1384 struct gpfs_config_data *config;
1385
1386 SMB_VFS_HANDLE_GET_DATA(handle, config,
1387 struct gpfs_config_data,
1388 return -1);
1389
1390 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1391 if(ret == -1){
1392 /* don't complain if access was denied */
1393 if (errno != EPERM && errno != EACCES) {
1394 DEBUG(1,("vfs_gpfs_ntimes: SMB_VFS_NEXT_NTIMES failed:"
1395 "%s", strerror(errno)));
1396 }
1397 return -1;
1398 }
1399
1400 if(null_timespec(ft->create_time)){
1401 DEBUG(10,("vfs_gpfs_ntimes:Create Time is NULL\n"));
1402 return 0;
1403 }
1404
1405 if (!config->winattr) {
1406 return 0;
1407 }
1408
1409 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1410 if (!NT_STATUS_IS_OK(status)) {
1411 errno = map_errno_from_nt_status(status);
1412 return -1;
1413 }
1414
1415 attrs.winAttrs = 0;
1416 attrs.creationTime.tv_sec = ft->create_time.tv_sec;
1417 attrs.creationTime.tv_nsec = ft->create_time.tv_nsec;
1418
1419 ret = set_gpfs_winattrs(discard_const_p(char, path),
1420 GPFS_WINATTR_SET_CREATION_TIME, &attrs);
1421 if(ret == -1 && errno != ENOSYS){
1422 DEBUG(1,("vfs_gpfs_ntimes: set GPFS ntimes failed %d\n",ret));
1423 return -1;
1424 }
1425 return 0;
1426
1427 }
1428
1429 static int vfs_gpfs_fallocate(struct vfs_handle_struct *handle,
1430 struct files_struct *fsp, enum vfs_fallocate_mode mode,
1431 off_t offset, off_t len)
1432 {
1433 int ret;
1434 struct gpfs_config_data *config;
1435
1436 SMB_VFS_HANDLE_GET_DATA(handle, config,
1437 struct gpfs_config_data,
1438 return -1);
1439
1440 if (!config->prealloc) {
1441 /* you should better not run fallocate() on GPFS at all */
1442 errno = ENOTSUP;
1443 return -1;
1444 }
1445
1446 if (mode == VFS_FALLOCATE_KEEP_SIZE) {
1447 DEBUG(10, ("Unsupported VFS_FALLOCATE_KEEP_SIZE\n"));
1448 errno = ENOTSUP;
1449 return -1;
1450 }
1451
1452 ret = smbd_gpfs_prealloc(fsp->fh->fd, offset, len);
1453
1454 if (ret == -1 && errno != ENOSYS) {
1455 DEBUG(0, ("GPFS prealloc failed: %s\n", strerror(errno)));
1456 } else if (ret == -1 && errno == ENOSYS) {
1457 DEBUG(10, ("GPFS prealloc not supported.\n"));
1458 } else {
1459 DEBUG(10, ("GPFS prealloc succeeded.\n"));
1460 }
1461
1462 return ret;
1463 }
1464
1465 static int vfs_gpfs_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1466 off_t len)
1467 {
1468 int result;
1469 struct gpfs_config_data *config;
1470
1471 SMB_VFS_HANDLE_GET_DATA(handle, config,
1472 struct gpfs_config_data,
1473 return -1);
1474
1475 if (!config->ftruncate) {
1476 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1477 }
1478
1479 result = smbd_gpfs_ftruncate(fsp->fh->fd, len);
1480 if ((result == -1) && (errno == ENOSYS)) {
1481 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1482 }
1483 return result;
1484 }
1485
1486 static bool vfs_gpfs_is_offline(struct vfs_handle_struct *handle,
1487 const struct smb_filename *fname,
1488 SMB_STRUCT_STAT *sbuf)
1489 {
1490 struct gpfs_winattr attrs;
1491 char *path = NULL;
1492 NTSTATUS status;
1493 struct gpfs_config_data *config;
1494
1495 SMB_VFS_HANDLE_GET_DATA(handle, config,
1496 struct gpfs_config_data,
1497 return -1);
1498
1499 if (!config->winattr) {
1500 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1501 }
1502
1503 status = get_full_smb_filename(talloc_tos(), fname, &path);
1504 if (!NT_STATUS_IS_OK(status)) {
1505 errno = map_errno_from_nt_status(status);
1506 return -1;
1507 }
1508
1509 if (VALID_STAT(*sbuf)) {
1510 attrs.winAttrs = sbuf->vfs_private;
1511 } else {
1512 int ret;
1513 ret = get_gpfs_winattrs(path, &attrs);
1514
1515 if (ret == -1) {
1516 TALLOC_FREE(path);
1517 return false;
1518 }
1519 }
1520 if ((attrs.winAttrs & GPFS_WINATTR_OFFLINE) != 0) {
1521 DEBUG(10, ("%s is offline\n", path));
1522 TALLOC_FREE(path);
1523 return true;
1524 }
1525 DEBUG(10, ("%s is online\n", path));
1526 TALLOC_FREE(path);
1527 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1528 }
1529
1530 static bool vfs_gpfs_aio_force(struct vfs_handle_struct *handle,
1531 struct files_struct *fsp)
1532 {
1533 return vfs_gpfs_is_offline(handle, fsp->fsp_name, &fsp->fsp_name->st);
1534 }
1535
1536 static ssize_t vfs_gpfs_sendfile(vfs_handle_struct *handle, int tofd,
1537 files_struct *fsp, const DATA_BLOB *hdr,
1538 off_t offset, size_t n)
1539 {
1540 if ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0) {
1541 errno = ENOSYS;
1542 return -1;
1543 }
1544 return SMB_VFS_NEXT_SENDFILE(handle, tofd, fsp, hdr, offset, n);
1545 }
1546
1547 static int vfs_gpfs_connect(struct vfs_handle_struct *handle,
1548 const char *service, const char *user)
1549 {
1550 struct gpfs_config_data *config;
1551 int ret;
1552
1553 smbd_gpfs_lib_init();
1554
1555 ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
1556
1557 if (ret < 0) {
1558 return ret;
1559 }
1560
1561 config = talloc_zero(handle->conn, struct gpfs_config_data);
1562 if (!config) {
1563 SMB_VFS_NEXT_DISCONNECT(handle);
1564 DEBUG(0, ("talloc_zero() failed\n"));
1565 return -1;
1566 }
1567
1568 config->sharemodes = lp_parm_bool(SNUM(handle->conn), "gpfs",
1569 "sharemodes", true);
1570
1571 config->leases = lp_parm_bool(SNUM(handle->conn), "gpfs",
1572 "leases", true);
1573
1574 config->hsm = lp_parm_bool(SNUM(handle->conn), "gpfs",
1575 "hsm", false);
1576
1577 config->syncio = lp_parm_bool(SNUM(handle->conn), "gpfs",
1578 "syncio", false);
1579
1580 config->winattr = lp_parm_bool(SNUM(handle->conn), "gpfs",
1581 "winattr", false);
1582
1583 config->ftruncate = lp_parm_bool(SNUM(handle->conn), "gpfs",
1584 "ftruncate", true);
1585
1586 config->getrealfilename = lp_parm_bool(SNUM(handle->conn), "gpfs",
1587 "getrealfilename", true);
1588
1589 config->dfreequota = lp_parm_bool(SNUM(handle->conn), "gpfs",
1590 "dfreequota", false);
1591
1592 config->prealloc = lp_parm_bool(SNUM(handle->conn), "gpfs",
1593 "prealloc", true);
1594
1595 config->acl = lp_parm_bool(SNUM(handle->conn), "gpfs", "acl", true);
1596
1597 SMB_VFS_HANDLE_SET_DATA(handle, config,
1598 NULL, struct gpfs_config_data,
1599 return -1);
1600
1601 if (config->leases) {
1602 /*
1603 * GPFS lease code is based on kernel oplock code
1604 * so make sure it is turned on
1605 */
1606 if (!lp_kernel_oplocks(SNUM(handle->conn))) {
1607 DEBUG(5, ("Enabling kernel oplocks for "
1608 "gpfs:leases to work\n"));
1609 lp_do_parameter(SNUM(handle->conn), "kernel oplocks",
1610 "true");
1611 }
1612
1613 /*
1614 * as the kernel does not properly support Level II oplocks
1615 * and GPFS leases code is based on kernel infrastructure, we
1616 * need to turn off Level II oplocks if gpfs:leases is enabled
1617 */
1618 if (lp_level2_oplocks(SNUM(handle->conn))) {
1619 DEBUG(5, ("gpfs:leases are enabled, disabling "
1620 "Level II oplocks\n"));
1621 lp_do_parameter(SNUM(handle->conn), "level2 oplocks",
1622 "false");
1623 }
1624 }
1625
1626 return 0;
1627 }
1628
1629 static int vfs_gpfs_get_quotas(const char *path, uid_t uid, gid_t gid,
1630 int *fset_id,
1631 struct gpfs_quotaInfo *qi_user,
1632 struct gpfs_quotaInfo *qi_group,
1633 struct gpfs_quotaInfo *qi_fset)
1634 {
1635 int err;
1636 char *dir_path;
1637 bool b;
1638
1639 /*
1640 * We want to always use the directory to get the fileset id,
1641 * because files might have a share mode. We also do not want
1642 * to get the parent directory when there is already a
1643 * directory to avoid stepping in a different fileset. The
1644 * path passed here is currently either "." or a filename, so
1645 * this is ok. The proper solution would be having a way to
1646 * query the fileset id without opening the file.
1647 */
1648 b = parent_dirname(talloc_tos(), path, &dir_path, NULL);
1649 if (!b) {
1650 errno = ENOMEM;
1651 return -1;
1652 }
1653
1654 DEBUG(10, ("path %s, directory %s\n", path, dir_path));
1655
1656 err = get_gpfs_fset_id(dir_path, fset_id);
1657 if (err) {
1658 DEBUG(0, ("Get fset id failed path %s, dir %s, errno %d.\n",
1659 path, dir_path, errno));
1660 return err;
1661 }
1662
1663 err = get_gpfs_quota(path, GPFS_USRQUOTA, uid, qi_user);
1664 if (err) {
1665 return err;
1666 }
1667
1668 err = get_gpfs_quota(path, GPFS_GRPQUOTA, gid, qi_group);
1669 if (err) {
1670 return err;
1671 }
1672
1673 err = get_gpfs_quota(path, GPFS_FILESETQUOTA, *fset_id, qi_fset);
1674 if (err) {
1675 return err;
1676 }
1677
1678 return 0;
1679 }
1680
1681 static void vfs_gpfs_disk_free_quota(struct gpfs_quotaInfo qi, time_t cur_time,
1682 uint64_t *dfree, uint64_t *dsize)
1683 {
1684 uint64_t usage, limit;
1685
1686 /*
1687 * The quota reporting is done in units of 1024 byte blocks, but
1688 * sys_fsusage uses units of 512 byte blocks, adjust the block number
1689 * accordingly. Also filter possibly negative usage counts from gpfs.
1690 */
1691 usage = qi.blockUsage < 0 ? 0 : (uint64_t)qi.blockUsage * 2;
1692 limit = (uint64_t)qi.blockHardLimit * 2;
1693
1694 /*
1695 * When the grace time for the exceeded soft block quota has been
1696 * exceeded, the soft block quota becomes an additional hard limit.
1697 */
1698 if (qi.blockSoftLimit &&
1699 qi.blockGraceTime && cur_time > qi.blockGraceTime) {
1700 /* report disk as full */
1701 *dfree = 0;
1702 *dsize = MIN(*dsize, usage);
1703 }
1704
1705 if (!qi.blockHardLimit)
1706 return;
1707
1708 if (usage >= limit) {
1709 /* report disk as full */
1710 *dfree = 0;
1711 *dsize = MIN(*dsize, usage);
1712
1713 } else {
1714 /* limit has not been reached, determine "free space" */
1715 *dfree = MIN(*dfree, limit - usage);
1716 *dsize = MIN(*dsize, limit);
1717 }
1718 }
1719
1720 static uint64_t vfs_gpfs_disk_free(vfs_handle_struct *handle, const char *path,
1721 bool small_query, uint64_t *bsize,
1722 uint64_t *dfree, uint64_t *dsize)
1723 {
1724 struct security_unix_token *utok;
1725 struct gpfs_quotaInfo qi_user, qi_group, qi_fset;
1726 struct gpfs_config_data *config;
1727 int err, fset_id;
1728 time_t cur_time;
1729
1730 SMB_VFS_HANDLE_GET_DATA(handle, config, struct gpfs_config_data,
1731 return (uint64_t)-1);
1732 if (!config->dfreequota) {
1733 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1734 bsize, dfree, dsize);
1735 }
1736
1737 err = sys_fsusage(path, dfree, dsize);
1738 if (err) {
1739 DEBUG (0, ("Could not get fs usage, errno %d\n", errno));
1740 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1741 bsize, dfree, dsize);
1742 }
1743
1744 /* sys_fsusage returns units of 512 bytes */
1745 *bsize = 512;
1746
1747 DEBUG(10, ("fs dfree %llu, dsize %llu\n",
1748 (unsigned long long)*dfree, (unsigned long long)*dsize));
1749
1750 utok = handle->conn->session_info->unix_token;
1751 err = vfs_gpfs_get_quotas(path, utok->uid, utok->gid, &fset_id,
1752 &qi_user, &qi_group, &qi_fset);
1753 if (err) {
1754 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1755 bsize, dfree, dsize);
1756 }
1757
1758 cur_time = time(NULL);
1759
1760 /* Adjust free space and size according to quota limits. */
1761 vfs_gpfs_disk_free_quota(qi_user, cur_time, dfree, dsize);
1762 vfs_gpfs_disk_free_quota(qi_group, cur_time, dfree, dsize);
1763
1764 /* Id 0 indicates the default quota, not an actual quota */
1765 if (fset_id != 0) {
1766 vfs_gpfs_disk_free_quota(qi_fset, cur_time, dfree, dsize);
1767 }
1768
1769 disk_norm(small_query, bsize, dfree, dsize);
1770 return *dfree;
1771 }
1772
1773 static uint32_t vfs_gpfs_capabilities(struct vfs_handle_struct *handle,
1774 enum timestamp_set_resolution *p_ts_res)
1775 {
1776 struct gpfs_config_data *config;
1777 uint32_t next;
1778
1779 next = SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
1780
1781 SMB_VFS_HANDLE_GET_DATA(handle, config,
1782 struct gpfs_config_data,
1783 return next);
1784
1785 if (config->hsm) {
1786 next |= FILE_SUPPORTS_REMOTE_STORAGE;
1787 }
1788 return next;
1789 }
1790
1791 static int vfs_gpfs_open(struct vfs_handle_struct *handle,
1792 struct smb_filename *smb_fname, files_struct *fsp,
1793 int flags, mode_t mode)
1794 {
1795 struct gpfs_config_data *config;
1796
1797 SMB_VFS_HANDLE_GET_DATA(handle, config,
1798 struct gpfs_config_data,
1799 return -1);
1800
1801 if (config->syncio) {
1802 flags |= O_SYNC;
1803 }
1804 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1805 }
1806
1807 static ssize_t vfs_gpfs_pread(vfs_handle_struct *handle, files_struct *fsp,
1808 void *data, size_t n, off_t offset)
1809 {
1810 ssize_t ret;
1811
1812 ret = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
1813
1814 DEBUG(10, ("vfs_private = %x\n",
1815 (unsigned int)fsp->fsp_name->st.vfs_private));
1816
1817 if ((ret != -1) &&
1818 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1819 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1820 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
1821 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1822 fsp->fsp_name->base_name);
1823 }
1824
1825 return ret;
1826 }
1827
1828 struct vfs_gpfs_pread_state {
1829 struct files_struct *fsp;
1830 ssize_t ret;
1831 int err;
1832 };
1833
1834 static void vfs_gpfs_pread_done(struct tevent_req *subreq);
1835
1836 static struct tevent_req *vfs_gpfs_pread_send(struct vfs_handle_struct *handle,
1837 TALLOC_CTX *mem_ctx,
1838 struct tevent_context *ev,
1839 struct files_struct *fsp,
1840 void *data, size_t n,
1841 off_t offset)
1842 {
1843 struct tevent_req *req, *subreq;
1844 struct vfs_gpfs_pread_state *state;
1845
1846 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pread_state);
1847 if (req == NULL) {
1848 return NULL;
1849 }
1850 state->fsp = fsp;
1851 subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
1852 n, offset);
1853 if (tevent_req_nomem(subreq, req)) {
1854 return tevent_req_post(req, ev);
1855 }
1856 tevent_req_set_callback(subreq, vfs_gpfs_pread_done, req);
1857 return req;
1858 }
1859
1860 static void vfs_gpfs_pread_done(struct tevent_req *subreq)
1861 {
1862 struct tevent_req *req = tevent_req_callback_data(
1863 subreq, struct tevent_req);
1864 struct vfs_gpfs_pread_state *state = tevent_req_data(
1865 req, struct vfs_gpfs_pread_state);
1866
1867 state->ret = SMB_VFS_PREAD_RECV(subreq, &state->err);
1868 TALLOC_FREE(subreq);
1869 tevent_req_done(req);
1870 }
1871
1872 static ssize_t vfs_gpfs_pread_recv(struct tevent_req *req, int *err)
1873 {
1874 struct vfs_gpfs_pread_state *state = tevent_req_data(
1875 req, struct vfs_gpfs_pread_state);
1876 struct files_struct *fsp = state->fsp;
1877
1878 if (tevent_req_is_unix_error(req, err)) {
1879 return -1;
1880 }
1881 *err = state->err;
1882
1883 DEBUG(10, ("vfs_private = %x\n",
1884 (unsigned int)fsp->fsp_name->st.vfs_private));
1885
1886 if ((state->ret != -1) &&
1887 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1888 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1889 DEBUG(10, ("sending notify\n"));
1890 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
1891 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1892 fsp->fsp_name->base_name);
1893 }
1894
1895 return state->ret;
1896 }
1897
1898 static ssize_t vfs_gpfs_pwrite(vfs_handle_struct *handle, files_struct *fsp,
1899 const void *data, size_t n, off_t offset)
1900 {
1901 ssize_t ret;
1902
1903 ret = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
1904
1905 DEBUG(10, ("vfs_private = %x\n",
1906 (unsigned int)fsp->fsp_name->st.vfs_private));
1907
1908 if ((ret != -1) &&
1909 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1910 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1911 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
1912 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1913 fsp->fsp_name->base_name);
1914 }
1915
1916 return ret;
1917 }
1918
1919 struct vfs_gpfs_pwrite_state {
1920 struct files_struct *fsp;
1921 ssize_t ret;
1922 int err;
1923 };
1924
1925 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq);
1926
1927 static struct tevent_req *vfs_gpfs_pwrite_send(
1928 struct vfs_handle_struct *handle,
1929 TALLOC_CTX *mem_ctx,
1930 struct tevent_context *ev,
1931 struct files_struct *fsp,
1932 const void *data, size_t n,
1933 off_t offset)
1934 {
1935 struct tevent_req *req, *subreq;
1936 struct vfs_gpfs_pwrite_state *state;
1937
1938 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pwrite_state);
1939 if (req == NULL) {
1940 return NULL;
1941 }
1942 state->fsp = fsp;
1943 subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
1944 n, offset);
1945 if (tevent_req_nomem(subreq, req)) {
1946 return tevent_req_post(req, ev);
1947 }
1948 tevent_req_set_callback(subreq, vfs_gpfs_pwrite_done, req);
1949 return req;
1950 }
1951
1952 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq)
1953 {
1954 struct tevent_req *req = tevent_req_callback_data(
1955 subreq, struct tevent_req);
1956 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
1957 req, struct vfs_gpfs_pwrite_state);
1958
1959 state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->err);
1960 TALLOC_FREE(subreq);
1961 tevent_req_done(req);
1962 }
1963
1964 static ssize_t vfs_gpfs_pwrite_recv(struct tevent_req *req, int *err)
1965 {
1966 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
1967 req, struct vfs_gpfs_pwrite_state);
1968 struct files_struct *fsp = state->fsp;
1969
1970 if (tevent_req_is_unix_error(req, err)) {
1971 return -1;
1972 }
1973 *err = state->err;
1974
1975 DEBUG(10, ("vfs_private = %x\n",
1976 (unsigned int)fsp->fsp_name->st.vfs_private));
1977
1978 if ((state->ret != -1) &&
1979 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1980 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1981 DEBUG(10, ("sending notify\n"));
1982 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
1983 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1984 fsp->fsp_name->base_name);
1985 }
1986
1987 return state->ret;
1988 }
1989
1990
1991 static struct vfs_fn_pointers vfs_gpfs_fns = {
1992 .connect_fn = vfs_gpfs_connect,
1993 .disk_free_fn = vfs_gpfs_disk_free,
1994 .fs_capabilities_fn = vfs_gpfs_capabilities,
1995 .kernel_flock_fn = vfs_gpfs_kernel_flock,
1996 .linux_setlease_fn = vfs_gpfs_setlease,
1997 .get_real_filename_fn = vfs_gpfs_get_real_filename,
1998 .fget_nt_acl_fn = gpfsacl_fget_nt_acl,
1999 .get_nt_acl_fn = gpfsacl_get_nt_acl,
2000 .fset_nt_acl_fn = gpfsacl_fset_nt_acl,
2001 .sys_acl_get_file_fn = gpfsacl_sys_acl_get_file,
2002 .sys_acl_get_fd_fn = gpfsacl_sys_acl_get_fd,
2003 .sys_acl_blob_get_file_fn = gpfsacl_sys_acl_blob_get_file,
2004 .sys_acl_blob_get_fd_fn = gpfsacl_sys_acl_blob_get_fd,
2005 .sys_acl_set_file_fn = gpfsacl_sys_acl_set_file,
2006 .sys_acl_set_fd_fn = gpfsacl_sys_acl_set_fd,
2007 .sys_acl_delete_def_file_fn = gpfsacl_sys_acl_delete_def_file,
2008 .chmod_fn = vfs_gpfs_chmod,
2009 .fchmod_fn = vfs_gpfs_fchmod,
2010 .close_fn = vfs_gpfs_close,
2011 .setxattr_fn = gpfs_set_xattr,
2012 .getxattr_fn = gpfs_get_xattr,
2013 .stat_fn = vfs_gpfs_stat,
2014 .fstat_fn = vfs_gpfs_fstat,
2015 .lstat_fn = vfs_gpfs_lstat,
2016 .ntimes_fn = vfs_gpfs_ntimes,
2017 .is_offline_fn = vfs_gpfs_is_offline,
2018 .aio_force_fn = vfs_gpfs_aio_force,
2019 .sendfile_fn = vfs_gpfs_sendfile,
2020 .fallocate_fn = vfs_gpfs_fallocate,
2021 .open_fn = vfs_gpfs_open,
2022 .pread_fn = vfs_gpfs_pread,
2023 .pread_send_fn = vfs_gpfs_pread_send,
2024 .pread_recv_fn = vfs_gpfs_pread_recv,
2025 .pwrite_fn = vfs_gpfs_pwrite,
2026 .pwrite_send_fn = vfs_gpfs_pwrite_send,
2027 .pwrite_recv_fn = vfs_gpfs_pwrite_recv,
2028 .ftruncate_fn = vfs_gpfs_ftruncate
2029 };
2030
2031 NTSTATUS vfs_gpfs_init(void);
2032 NTSTATUS vfs_gpfs_init(void)
2033 {
2034 init_gpfs();
2035
2036 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
2037 &vfs_gpfs_fns);
2038 }
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