?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
s3:vfs_gpfs fix memory leak in gpfs_get_nfs4_acl
[Samba/gebeck_regimport.git] / source3 / modules / vfs_gpfs.c
blobe425d2f1c31ab3362f24333247a0f6211d5759d3
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
577 for (i=0; i<pacl->acl_nace; i++) {
578 struct smb_acl_entry *ace = &result->acl[i];
579 const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
580
581 DEBUG(10, ("Converting type %d id %lu perm %x\n",
582 (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
583 (int)g_ace->ace_perm));
584
585 switch (g_ace->ace_type) {
586 case GPFS_ACL_USER:
587 ace->a_type = SMB_ACL_USER;
588 ace->info.user.uid = (uid_t)g_ace->ace_who;
589 break;
590 case GPFS_ACL_USER_OBJ:
591 ace->a_type = SMB_ACL_USER_OBJ;
592 break;
593 case GPFS_ACL_GROUP:
594 ace->a_type = SMB_ACL_GROUP;
595 ace->info.group.gid = (gid_t)g_ace->ace_who;
596 break;
597 case GPFS_ACL_GROUP_OBJ:
598 ace->a_type = SMB_ACL_GROUP_OBJ;
599 break;
600 case GPFS_ACL_OTHER:
601 ace->a_type = SMB_ACL_OTHER;
602 break;
603 case GPFS_ACL_MASK:
604 ace->a_type = SMB_ACL_MASK;
605 break;
606 default:
607 DEBUG(10, ("Got invalid ace_type: %d\n",
608 g_ace->ace_type));
609 errno = EINVAL;
610 TALLOC_FREE(result);
611 return NULL;
612 }
613
614 ace->a_perm = 0;
615 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
616 SMB_ACL_READ : 0;
617 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
618 SMB_ACL_WRITE : 0;
619 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
620 SMB_ACL_EXECUTE : 0;
621
622 DEBUGADD(10, ("Converted to %d perm %x\n",
623 ace->a_type, ace->a_perm));
624 }
625
626 return result;
627 }
628
629 static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type,
630 TALLOC_CTX *mem_ctx)
631 {
632 struct gpfs_acl *pacl;
633 SMB_ACL_T result = NULL;
634
635 pacl = gpfs_getacl_alloc(path, type);
636
637 if (pacl == NULL) {
638 DEBUG(10, ("gpfs_getacl failed for %s with %s\n",
639 path, strerror(errno)));
640 if (errno == 0) {
641 errno = EINVAL;
642 }
643 goto done;
644 }
645
646 if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
647 DEBUG(10, ("Got acl version %d, expected %d\n",
648 pacl->acl_version, GPFS_ACL_VERSION_POSIX));
649 errno = EINVAL;
650 goto done;
651 }
652
653 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
654 pacl->acl_len, pacl->acl_level, pacl->acl_version,
655 pacl->acl_nace));
656
657 result = gpfs2smb_acl(pacl, mem_ctx);
658 if (result != NULL) {
659 errno = 0;
660 }
661
662 done:
663
664 if (errno != 0) {
665 TALLOC_FREE(result);
666 }
667 return result;
668 }
669
670 static SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
671 const char *path_p,
672 SMB_ACL_TYPE_T type,
673 TALLOC_CTX *mem_ctx)
674 {
675 gpfs_aclType_t gpfs_type;
676 struct gpfs_config_data *config;
677
678 SMB_VFS_HANDLE_GET_DATA(handle, config,
679 struct gpfs_config_data,
680 return NULL);
681
682 if (!config->acl) {
683 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p,
684 type, mem_ctx);
685 }
686
687 switch(type) {
688 case SMB_ACL_TYPE_ACCESS:
689 gpfs_type = GPFS_ACL_TYPE_ACCESS;
690 break;
691 case SMB_ACL_TYPE_DEFAULT:
692 gpfs_type = GPFS_ACL_TYPE_DEFAULT;
693 break;
694 default:
695 DEBUG(0, ("Got invalid type: %d\n", type));
696 smb_panic("exiting");
697 }
698
699 return gpfsacl_get_posix_acl(path_p, gpfs_type, mem_ctx);
700 }
701
702 static SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
703 files_struct *fsp,
704 TALLOC_CTX *mem_ctx)
705 {
706 struct gpfs_config_data *config;
707
708 SMB_VFS_HANDLE_GET_DATA(handle, config,
709 struct gpfs_config_data,
710 return NULL);
711
712 if (!config->acl) {
713 return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
714 }
715
716 return gpfsacl_get_posix_acl(fsp->fsp_name->base_name,
717 GPFS_ACL_TYPE_ACCESS, mem_ctx);
718 }
719
720 static int gpfsacl_sys_acl_blob_get_file(vfs_handle_struct *handle,
721 const char *path_p,
722 TALLOC_CTX *mem_ctx,
723 char **blob_description,
724 DATA_BLOB *blob)
725 {
726 struct gpfs_config_data *config;
727 SMB4ACL_T *pacl = NULL;
728 int result;
729
730 SMB_VFS_HANDLE_GET_DATA(handle, config,
731 struct gpfs_config_data,
732 return -1);
733
734 if (!config->acl) {
735 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, path_p,
736 mem_ctx,
737 blob_description,
738 blob);
739 }
740
741 result = gpfs_get_nfs4_acl(path_p, &pacl);
742 if (result == 0) {
743 /* We don't have a way to linearlise the NFS4 ACL
744 * right now, and it is much closer to the NT ACL
745 * anyway */
746 errno = EINVAL;
747 return -1;
748 }
749
750 return posix_sys_acl_blob_get_file(handle, path_p, mem_ctx,
751 blob_description, blob);
752 }
753
754 static int gpfsacl_sys_acl_blob_get_fd(vfs_handle_struct *handle,
755 files_struct *fsp,
756 TALLOC_CTX *mem_ctx,
757 char **blob_description,
758 DATA_BLOB *blob)
759 {
760 struct gpfs_config_data *config;
761 SMB4ACL_T *pacl = NULL;
762 int result;
763
764 SMB_VFS_HANDLE_GET_DATA(handle, config,
765 struct gpfs_config_data,
766 return -1);
767
768 if (!config->acl) {
769 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
770 blob_description, blob);
771 }
772
773 result = gpfs_get_nfs4_acl(fsp->fsp_name->base_name, &pacl);
774 if (result == 0) {
775 /* We don't have a way to linearlise the NFS4 ACL
776 * right now, and it is much closer to the NT ACL
777 * anyway */
778 errno = EINVAL;
779 return -1;
780 }
781
782 return posix_sys_acl_blob_get_fd(handle, fsp, mem_ctx,
783 blob_description, blob);
784 }
785
786 static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
787 SMB_ACL_TYPE_T type)
788 {
789 gpfs_aclLen_t len;
790 struct gpfs_acl *result;
791 int i;
792
793 DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
794
795 len = offsetof(gpfs_acl_t, ace_v1) + (pacl->count) *
796 sizeof(gpfs_ace_v1_t);
797
798 result = (struct gpfs_acl *)SMB_MALLOC(len);
799 if (result == NULL) {
800 errno = ENOMEM;
801 return result;
802 }
803
804 result->acl_len = len;
805 result->acl_level = 0;
806 result->acl_version = GPFS_ACL_VERSION_POSIX;
807 result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
808 GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
809 result->acl_nace = pacl->count;
810
811 for (i=0; i<pacl->count; i++) {
812 const struct smb_acl_entry *ace = &pacl->acl[i];
813 struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
814
815 DEBUG(10, ("Converting type %d perm %x\n",
816 (int)ace->a_type, (int)ace->a_perm));
817
818 g_ace->ace_perm = 0;
819
820 switch(ace->a_type) {
821 case SMB_ACL_USER:
822 g_ace->ace_type = GPFS_ACL_USER;
823 g_ace->ace_who = (gpfs_uid_t)ace->info.user.uid;
824 break;
825 case SMB_ACL_USER_OBJ:
826 g_ace->ace_type = GPFS_ACL_USER_OBJ;
827 g_ace->ace_perm |= ACL_PERM_CONTROL;
828 g_ace->ace_who = 0;
829 break;
830 case SMB_ACL_GROUP:
831 g_ace->ace_type = GPFS_ACL_GROUP;
832 g_ace->ace_who = (gpfs_uid_t)ace->info.group.gid;
833 break;
834 case SMB_ACL_GROUP_OBJ:
835 g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
836 g_ace->ace_who = 0;
837 break;
838 case SMB_ACL_MASK:
839 g_ace->ace_type = GPFS_ACL_MASK;
840 g_ace->ace_perm = 0x8f;
841 g_ace->ace_who = 0;
842 break;
843 case SMB_ACL_OTHER:
844 g_ace->ace_type = GPFS_ACL_OTHER;
845 g_ace->ace_who = 0;
846 break;
847 default:
848 DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
849 errno = EINVAL;
850 SAFE_FREE(result);
851 return NULL;
852 }
853
854 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
855 ACL_PERM_READ : 0;
856 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
857 ACL_PERM_WRITE : 0;
858 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
859 ACL_PERM_EXECUTE : 0;
860
861 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
862 g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
863 }
864
865 return result;
866 }
867
868 static int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
869 const char *name,
870 SMB_ACL_TYPE_T type,
871 SMB_ACL_T theacl)
872 {
873 struct gpfs_acl *gpfs_acl;
874 int result;
875 struct gpfs_config_data *config;
876
877 SMB_VFS_HANDLE_GET_DATA(handle, config,
878 struct gpfs_config_data,
879 return -1);
880
881 if (!config->acl) {
882 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name, type, theacl);
883 }
884
885 gpfs_acl = smb2gpfs_acl(theacl, type);
886 if (gpfs_acl == NULL) {
887 return -1;
888 }
889
890 result = smbd_gpfs_putacl((char *)name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gpfs_acl);
891
892 SAFE_FREE(gpfs_acl);
893 return result;
894 }
895
896 static int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
897 files_struct *fsp,
898 SMB_ACL_T theacl)
899 {
900 struct gpfs_config_data *config;
901
902 SMB_VFS_HANDLE_GET_DATA(handle, config,
903 struct gpfs_config_data,
904 return -1);
905
906 if (!config->acl) {
907 return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
908 }
909
910 return gpfsacl_sys_acl_set_file(handle, fsp->fsp_name->base_name,
911 SMB_ACL_TYPE_ACCESS, theacl);
912 }
913
914 static int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
915 const char *path)
916 {
917 struct gpfs_config_data *config;
918
919 SMB_VFS_HANDLE_GET_DATA(handle, config,
920 struct gpfs_config_data,
921 return -1);
922
923 if (!config->acl) {
924 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
925 }
926
927 errno = ENOTSUP;
928 return -1;
929 }
930
931 /*
932 * Assumed: mode bits are shiftable and standard
933 * Output: the new aceMask field for an smb nfs4 ace
934 */
935 static uint32 gpfsacl_mask_filter(uint32 aceType, uint32 aceMask, uint32 rwx)
936 {
937 const uint32 posix_nfs4map[3] = {
938 SMB_ACE4_EXECUTE, /* execute */
939 SMB_ACE4_WRITE_DATA | SMB_ACE4_APPEND_DATA, /* write; GPFS specific */
940 SMB_ACE4_READ_DATA /* read */
941 };
942 int i;
943 uint32_t posix_mask = 0x01;
944 uint32_t posix_bit;
945 uint32_t nfs4_bits;
946
947 for(i=0; i<3; i++) {
948 nfs4_bits = posix_nfs4map[i];
949 posix_bit = rwx & posix_mask;
950
951 if (aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE) {
952 if (posix_bit)
953 aceMask |= nfs4_bits;
954 else
955 aceMask &= ~nfs4_bits;
956 } else {
957 /* add deny bits when suitable */
958 if (!posix_bit)
959 aceMask |= nfs4_bits;
960 else
961 aceMask &= ~nfs4_bits;
962 } /* other ace types are unexpected */
963
964 posix_mask <<= 1;
965 }
966
967 return aceMask;
968 }
969
970 static int gpfsacl_emu_chmod(const char *path, mode_t mode)
971 {
972 SMB4ACL_T *pacl = NULL;
973 int result;
974 bool haveAllowEntry[SMB_ACE4_WHO_EVERYONE + 1] = {False, False, False, False};
975 int i;
976 files_struct fake_fsp; /* TODO: rationalize parametrization */
977 SMB4ACE_T *smbace;
978 NTSTATUS status;
979
980 DEBUG(10, ("gpfsacl_emu_chmod invoked for %s mode %o\n", path, mode));
981
982 result = gpfs_get_nfs4_acl(path, &pacl);
983 if (result)
984 return result;
985
986 if (mode & ~(S_IRWXU | S_IRWXG | S_IRWXO)) {
987 DEBUG(2, ("WARNING: cutting extra mode bits %o on %s\n", mode, path));
988 }
989
990 for (smbace=smb_first_ace4(pacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
991 SMB_ACE4PROP_T *ace = smb_get_ace4(smbace);
992 uint32_t specid = ace->who.special_id;
993
994 if (ace->flags&SMB_ACE4_ID_SPECIAL &&
995 ace->aceType<=SMB_ACE4_ACCESS_DENIED_ACE_TYPE &&
996 specid <= SMB_ACE4_WHO_EVERYONE) {
997
998 uint32_t newMask;
999
1000 if (ace->aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE)
1001 haveAllowEntry[specid] = True;
1002
1003 /* mode >> 6 for @owner, mode >> 3 for @group,
1004 * mode >> 0 for @everyone */
1005 newMask = gpfsacl_mask_filter(ace->aceType, ace->aceMask,
1006 mode >> ((SMB_ACE4_WHO_EVERYONE - specid) * 3));
1007 if (ace->aceMask!=newMask) {
1008 DEBUG(10, ("ace changed for %s (%o -> %o) id=%d\n",
1009 path, ace->aceMask, newMask, specid));
1010 }
1011 ace->aceMask = newMask;
1012 }
1013 }
1014
1015 /* make sure we have at least ALLOW entries
1016 * for all the 3 special ids (@EVERYONE, @OWNER, @GROUP)
1017 * - if necessary
1018 */
1019 for(i = SMB_ACE4_WHO_OWNER; i<=SMB_ACE4_WHO_EVERYONE; i++) {
1020 SMB_ACE4PROP_T ace;
1021
1022 if (haveAllowEntry[i]==True)
1023 continue;
1024
1025 ZERO_STRUCT(ace);
1026 ace.aceType = SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE;
1027 ace.flags |= SMB_ACE4_ID_SPECIAL;
1028 ace.who.special_id = i;
1029
1030 if (i==SMB_ACE4_WHO_GROUP) /* not sure it's necessary... */
1031 ace.aceFlags |= SMB_ACE4_IDENTIFIER_GROUP;
1032
1033 ace.aceMask = gpfsacl_mask_filter(ace.aceType, ace.aceMask,
1034 mode >> ((SMB_ACE4_WHO_EVERYONE - i) * 3));
1035
1036 /* don't add unnecessary aces */
1037 if (!ace.aceMask)
1038 continue;
1039
1040 /* we add it to the END - as windows expects allow aces */
1041 smb_add_ace4(pacl, &ace);
1042 DEBUG(10, ("Added ALLOW ace for %s, mode=%o, id=%d, aceMask=%x\n",
1043 path, mode, i, ace.aceMask));
1044 }
1045
1046 /* don't add complementary DENY ACEs here */
1047 ZERO_STRUCT(fake_fsp);
1048 status = create_synthetic_smb_fname(talloc_tos(), path, NULL, NULL,
1049 &fake_fsp.fsp_name);
1050 if (!NT_STATUS_IS_OK(status)) {
1051 errno = map_errno_from_nt_status(status);
1052 return -1;
1053 }
1054 /* put the acl */
1055 if (gpfsacl_process_smbacl(&fake_fsp, pacl) == False) {
1056 TALLOC_FREE(fake_fsp.fsp_name);
1057 return -1;
1058 }
1059
1060 TALLOC_FREE(fake_fsp.fsp_name);
1061 return 0; /* ok for [f]chmod */
1062 }
1063
1064 static int vfs_gpfs_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
1065 {
1066 struct smb_filename *smb_fname_cpath;
1067 int rc;
1068 NTSTATUS status;
1069
1070 status = create_synthetic_smb_fname(
1071 talloc_tos(), path, NULL, NULL, &smb_fname_cpath);
1072
1073 if (SMB_VFS_NEXT_STAT(handle, smb_fname_cpath) != 0) {
1074 return -1;
1075 }
1076
1077 /* avoid chmod() if possible, to preserve acls */
1078 if ((smb_fname_cpath->st.st_ex_mode & ~S_IFMT) == mode) {
1079 return 0;
1080 }
1081
1082 rc = gpfsacl_emu_chmod(path, mode);
1083 if (rc == 1)
1084 return SMB_VFS_NEXT_CHMOD(handle, path, mode);
1085 return rc;
1086 }
1087
1088 static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
1089 {
1090 SMB_STRUCT_STAT st;
1091 int rc;
1092
1093 if (SMB_VFS_NEXT_FSTAT(handle, fsp, &st) != 0) {
1094 return -1;
1095 }
1096
1097 /* avoid chmod() if possible, to preserve acls */
1098 if ((st.st_ex_mode & ~S_IFMT) == mode) {
1099 return 0;
1100 }
1101
1102 rc = gpfsacl_emu_chmod(fsp->fsp_name->base_name, mode);
1103 if (rc == 1)
1104 return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
1105 return rc;
1106 }
1107
1108 static int gpfs_set_xattr(struct vfs_handle_struct *handle, const char *path,
1109 const char *name, const void *value, size_t size, int flags){
1110 struct xattr_DOSATTRIB dosattrib;
1111 enum ndr_err_code ndr_err;
1112 DATA_BLOB blob;
1113 const char *attrstr = value;
1114 unsigned int dosmode=0;
1115 struct gpfs_winattr attrs;
1116 int ret = 0;
1117 struct gpfs_config_data *config;
1118
1119 SMB_VFS_HANDLE_GET_DATA(handle, config,
1120 struct gpfs_config_data,
1121 return -1);
1122
1123 if (!config->winattr) {
1124 DEBUG(10, ("gpfs_set_xattr:name is %s -> next\n",name));
1125 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1126 }
1127
1128 DEBUG(10, ("gpfs_set_xattr: %s \n",path));
1129
1130 /* Only handle DOS Attributes */
1131 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1132 DEBUG(5, ("gpfs_set_xattr:name is %s\n",name));
1133 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1134 }
1135
1136 blob.data = (uint8_t *)attrstr;
1137 blob.length = size;
1138
1139 ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), &dosattrib,
1140 (ndr_pull_flags_fn_t)ndr_pull_xattr_DOSATTRIB);
1141
1142 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1143 DEBUG(1, ("gpfs_set_xattr: bad ndr decode "
1144 "from EA on file %s: Error = %s\n",
1145 path, ndr_errstr(ndr_err)));
1146 return false;
1147 }
1148
1149 if (dosattrib.version != 3) {
1150 DEBUG(1, ("gpfs_set_xattr: expected dosattrib version 3, got "
1151 "%d\n", (int)dosattrib.version));
1152 return false;
1153 }
1154 if (!(dosattrib.info.info3.valid_flags & XATTR_DOSINFO_ATTRIB)) {
1155 DEBUG(10, ("gpfs_set_xattr: XATTR_DOSINFO_ATTRIB not "
1156 "valid, ignoring\n"));
1157 return true;
1158 }
1159
1160 dosmode = dosattrib.info.info3.attrib;
1161
1162 attrs.winAttrs = 0;
1163 /*Just map RD_ONLY, ARCHIVE, SYSTEM HIDDEN and SPARSE. Ignore the others*/
1164 if (dosmode & FILE_ATTRIBUTE_ARCHIVE){
1165 attrs.winAttrs |= GPFS_WINATTR_ARCHIVE;
1166 }
1167 if (dosmode & FILE_ATTRIBUTE_HIDDEN){
1168 attrs.winAttrs |= GPFS_WINATTR_HIDDEN;
1169 }
1170 if (dosmode & FILE_ATTRIBUTE_SYSTEM){
1171 attrs.winAttrs |= GPFS_WINATTR_SYSTEM;
1172 }
1173 if (dosmode & FILE_ATTRIBUTE_READONLY){
1174 attrs.winAttrs |= GPFS_WINATTR_READONLY;
1175 }
1176 if (dosmode & FILE_ATTRIBUTE_SPARSE) {
1177 attrs.winAttrs |= GPFS_WINATTR_SPARSE_FILE;
1178 }
1179
1180
1181 ret = set_gpfs_winattrs(discard_const_p(char, path),
1182 GPFS_WINATTR_SET_ATTRS, &attrs);
1183 if ( ret == -1){
1184 if (errno == ENOSYS) {
1185 return SMB_VFS_NEXT_SETXATTR(handle, path, name, value,
1186 size, flags);
1187 }
1188
1189 DEBUG(1, ("gpfs_set_xattr:Set GPFS attributes failed %d\n",ret));
1190 return -1;
1191 }
1192
1193 DEBUG(10, ("gpfs_set_xattr:Set attributes: 0x%x\n",attrs.winAttrs));
1194 return 0;
1195 }
1196
1197 static ssize_t gpfs_get_xattr(struct vfs_handle_struct *handle, const char *path,
1198 const char *name, void *value, size_t size){
1199 char *attrstr = value;
1200 unsigned int dosmode = 0;
1201 struct gpfs_winattr attrs;
1202 int ret = 0;
1203 struct gpfs_config_data *config;
1204
1205 SMB_VFS_HANDLE_GET_DATA(handle, config,
1206 struct gpfs_config_data,
1207 return -1);
1208
1209 if (!config->winattr) {
1210 DEBUG(10, ("gpfs_get_xattr:name is %s -> next\n",name));
1211 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1212 }
1213
1214 DEBUG(10, ("gpfs_get_xattr: %s \n",path));
1215
1216 /* Only handle DOS Attributes */
1217 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1218 DEBUG(5, ("gpfs_get_xattr:name is %s\n",name));
1219 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1220 }
1221
1222 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1223 if ( ret == -1){
1224 if (errno == ENOSYS) {
1225 return SMB_VFS_NEXT_GETXATTR(handle, path, name, value,
1226 size);
1227 }
1228
1229 DEBUG(1, ("gpfs_get_xattr: Get GPFS attributes failed: "
1230 "%d (%s)\n", ret, strerror(errno)));
1231 return -1;
1232 }
1233
1234 DEBUG(10, ("gpfs_get_xattr:Got attributes: 0x%x\n",attrs.winAttrs));
1235
1236 /*Just map RD_ONLY, ARCHIVE, SYSTEM, HIDDEN and SPARSE. Ignore the others*/
1237 if (attrs.winAttrs & GPFS_WINATTR_ARCHIVE){
1238 dosmode |= FILE_ATTRIBUTE_ARCHIVE;
1239 }
1240 if (attrs.winAttrs & GPFS_WINATTR_HIDDEN){
1241 dosmode |= FILE_ATTRIBUTE_HIDDEN;
1242 }
1243 if (attrs.winAttrs & GPFS_WINATTR_SYSTEM){
1244 dosmode |= FILE_ATTRIBUTE_SYSTEM;
1245 }
1246 if (attrs.winAttrs & GPFS_WINATTR_READONLY){
1247 dosmode |= FILE_ATTRIBUTE_READONLY;
1248 }
1249 if (attrs.winAttrs & GPFS_WINATTR_SPARSE_FILE) {
1250 dosmode |= FILE_ATTRIBUTE_SPARSE;
1251 }
1252
1253 snprintf(attrstr, size, "0x%2.2x",
1254 (unsigned int)(dosmode & SAMBA_ATTRIBUTES_MASK));
1255 DEBUG(10, ("gpfs_get_xattr: returning %s\n",attrstr));
1256 return 4;
1257 }
1258
1259 static int vfs_gpfs_stat(struct vfs_handle_struct *handle,
1260 struct smb_filename *smb_fname)
1261 {
1262 struct gpfs_winattr attrs;
1263 char *fname = NULL;
1264 NTSTATUS status;
1265 int ret;
1266 struct gpfs_config_data *config;
1267
1268 SMB_VFS_HANDLE_GET_DATA(handle, config,
1269 struct gpfs_config_data,
1270 return -1);
1271
1272 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
1273 if (ret == -1) {
1274 return -1;
1275 }
1276
1277 if (!config->winattr) {
1278 return 0;
1279 }
1280
1281 status = get_full_smb_filename(talloc_tos(), smb_fname, &fname);
1282 if (!NT_STATUS_IS_OK(status)) {
1283 errno = map_errno_from_nt_status(status);
1284 return -1;
1285 }
1286 ret = get_gpfs_winattrs(discard_const_p(char, fname), &attrs);
1287 TALLOC_FREE(fname);
1288 if (ret == 0) {
1289 smb_fname->st.st_ex_calculated_birthtime = false;
1290 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1291 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1292 smb_fname->st.vfs_private = attrs.winAttrs;
1293 }
1294 return 0;
1295 }
1296
1297 static int vfs_gpfs_fstat(struct vfs_handle_struct *handle,
1298 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1299 {
1300 struct gpfs_winattr attrs;
1301 int ret;
1302 struct gpfs_config_data *config;
1303
1304 SMB_VFS_HANDLE_GET_DATA(handle, config,
1305 struct gpfs_config_data,
1306 return -1);
1307
1308 ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
1309 if (ret == -1) {
1310 return -1;
1311 }
1312 if ((fsp->fh == NULL) || (fsp->fh->fd == -1)) {
1313 return 0;
1314 }
1315 if (!config->winattr) {
1316 return 0;
1317 }
1318
1319 ret = smbd_fget_gpfs_winattrs(fsp->fh->fd, &attrs);
1320 if (ret == 0) {
1321 sbuf->st_ex_calculated_birthtime = false;
1322 sbuf->st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1323 sbuf->st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1324 }
1325 return 0;
1326 }
1327
1328 static int vfs_gpfs_lstat(struct vfs_handle_struct *handle,
1329 struct smb_filename *smb_fname)
1330 {
1331 struct gpfs_winattr attrs;
1332 char *path = NULL;
1333 NTSTATUS status;
1334 int ret;
1335 struct gpfs_config_data *config;
1336
1337 SMB_VFS_HANDLE_GET_DATA(handle, config,
1338 struct gpfs_config_data,
1339 return -1);
1340
1341 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1342 if (ret == -1) {
1343 return -1;
1344 }
1345 if (!config->winattr) {
1346 return 0;
1347 }
1348
1349 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1350 if (!NT_STATUS_IS_OK(status)) {
1351 errno = map_errno_from_nt_status(status);
1352 return -1;
1353 }
1354 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1355 TALLOC_FREE(path);
1356 if (ret == 0) {
1357 smb_fname->st.st_ex_calculated_birthtime = false;
1358 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1359 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1360 smb_fname->st.vfs_private = attrs.winAttrs;
1361 }
1362 return 0;
1363 }
1364
1365 static int vfs_gpfs_ntimes(struct vfs_handle_struct *handle,
1366 const struct smb_filename *smb_fname,
1367 struct smb_file_time *ft)
1368 {
1369
1370 struct gpfs_winattr attrs;
1371 int ret;
1372 char *path = NULL;
1373 NTSTATUS status;
1374 struct gpfs_config_data *config;
1375
1376 SMB_VFS_HANDLE_GET_DATA(handle, config,
1377 struct gpfs_config_data,
1378 return -1);
1379
1380 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1381 if(ret == -1){
1382 /* don't complain if access was denied */
1383 if (errno != EPERM && errno != EACCES) {
1384 DEBUG(1,("vfs_gpfs_ntimes: SMB_VFS_NEXT_NTIMES failed:"
1385 "%s", strerror(errno)));
1386 }
1387 return -1;
1388 }
1389
1390 if(null_timespec(ft->create_time)){
1391 DEBUG(10,("vfs_gpfs_ntimes:Create Time is NULL\n"));
1392 return 0;
1393 }
1394
1395 if (!config->winattr) {
1396 return 0;
1397 }
1398
1399 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1400 if (!NT_STATUS_IS_OK(status)) {
1401 errno = map_errno_from_nt_status(status);
1402 return -1;
1403 }
1404
1405 attrs.winAttrs = 0;
1406 attrs.creationTime.tv_sec = ft->create_time.tv_sec;
1407 attrs.creationTime.tv_nsec = ft->create_time.tv_nsec;
1408
1409 ret = set_gpfs_winattrs(discard_const_p(char, path),
1410 GPFS_WINATTR_SET_CREATION_TIME, &attrs);
1411 if(ret == -1 && errno != ENOSYS){
1412 DEBUG(1,("vfs_gpfs_ntimes: set GPFS ntimes failed %d\n",ret));
1413 return -1;
1414 }
1415 return 0;
1416
1417 }
1418
1419 static int vfs_gpfs_fallocate(struct vfs_handle_struct *handle,
1420 struct files_struct *fsp, enum vfs_fallocate_mode mode,
1421 off_t offset, off_t len)
1422 {
1423 int ret;
1424 struct gpfs_config_data *config;
1425
1426 SMB_VFS_HANDLE_GET_DATA(handle, config,
1427 struct gpfs_config_data,
1428 return -1);
1429
1430 if (!config->prealloc) {
1431 /* you should better not run fallocate() on GPFS at all */
1432 errno = ENOTSUP;
1433 return -1;
1434 }
1435
1436 if (mode == VFS_FALLOCATE_KEEP_SIZE) {
1437 DEBUG(10, ("Unsupported VFS_FALLOCATE_KEEP_SIZE\n"));
1438 errno = ENOTSUP;
1439 return -1;
1440 }
1441
1442 ret = smbd_gpfs_prealloc(fsp->fh->fd, offset, len);
1443
1444 if (ret == -1 && errno != ENOSYS) {
1445 DEBUG(0, ("GPFS prealloc failed: %s\n", strerror(errno)));
1446 } else if (ret == -1 && errno == ENOSYS) {
1447 DEBUG(10, ("GPFS prealloc not supported.\n"));
1448 } else {
1449 DEBUG(10, ("GPFS prealloc succeeded.\n"));
1450 }
1451
1452 return ret;
1453 }
1454
1455 static int vfs_gpfs_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1456 off_t len)
1457 {
1458 int result;
1459 struct gpfs_config_data *config;
1460
1461 SMB_VFS_HANDLE_GET_DATA(handle, config,
1462 struct gpfs_config_data,
1463 return -1);
1464
1465 if (!config->ftruncate) {
1466 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1467 }
1468
1469 result = smbd_gpfs_ftruncate(fsp->fh->fd, len);
1470 if ((result == -1) && (errno == ENOSYS)) {
1471 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1472 }
1473 return result;
1474 }
1475
1476 static bool vfs_gpfs_is_offline(struct vfs_handle_struct *handle,
1477 const struct smb_filename *fname,
1478 SMB_STRUCT_STAT *sbuf)
1479 {
1480 struct gpfs_winattr attrs;
1481 char *path = NULL;
1482 NTSTATUS status;
1483 struct gpfs_config_data *config;
1484
1485 SMB_VFS_HANDLE_GET_DATA(handle, config,
1486 struct gpfs_config_data,
1487 return -1);
1488
1489 if (!config->winattr) {
1490 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1491 }
1492
1493 status = get_full_smb_filename(talloc_tos(), fname, &path);
1494 if (!NT_STATUS_IS_OK(status)) {
1495 errno = map_errno_from_nt_status(status);
1496 return -1;
1497 }
1498
1499 if (VALID_STAT(*sbuf)) {
1500 attrs.winAttrs = sbuf->vfs_private;
1501 } else {
1502 int ret;
1503 ret = get_gpfs_winattrs(path, &attrs);
1504
1505 if (ret == -1) {
1506 TALLOC_FREE(path);
1507 return false;
1508 }
1509 }
1510 if ((attrs.winAttrs & GPFS_WINATTR_OFFLINE) != 0) {
1511 DEBUG(10, ("%s is offline\n", path));
1512 TALLOC_FREE(path);
1513 return true;
1514 }
1515 DEBUG(10, ("%s is online\n", path));
1516 TALLOC_FREE(path);
1517 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1518 }
1519
1520 static bool vfs_gpfs_aio_force(struct vfs_handle_struct *handle,
1521 struct files_struct *fsp)
1522 {
1523 return vfs_gpfs_is_offline(handle, fsp->fsp_name, &fsp->fsp_name->st);
1524 }
1525
1526 static ssize_t vfs_gpfs_sendfile(vfs_handle_struct *handle, int tofd,
1527 files_struct *fsp, const DATA_BLOB *hdr,
1528 off_t offset, size_t n)
1529 {
1530 if ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0) {
1531 errno = ENOSYS;
1532 return -1;
1533 }
1534 return SMB_VFS_NEXT_SENDFILE(handle, tofd, fsp, hdr, offset, n);
1535 }
1536
1537 static int vfs_gpfs_connect(struct vfs_handle_struct *handle,
1538 const char *service, const char *user)
1539 {
1540 struct gpfs_config_data *config;
1541 int ret;
1542
1543 smbd_gpfs_lib_init();
1544
1545 ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
1546
1547 if (ret < 0) {
1548 return ret;
1549 }
1550
1551 config = talloc_zero(handle->conn, struct gpfs_config_data);
1552 if (!config) {
1553 SMB_VFS_NEXT_DISCONNECT(handle);
1554 DEBUG(0, ("talloc_zero() failed\n"));
1555 return -1;
1556 }
1557
1558 config->sharemodes = lp_parm_bool(SNUM(handle->conn), "gpfs",
1559 "sharemodes", true);
1560
1561 config->leases = lp_parm_bool(SNUM(handle->conn), "gpfs",
1562 "leases", true);
1563
1564 config->hsm = lp_parm_bool(SNUM(handle->conn), "gpfs",
1565 "hsm", false);
1566
1567 config->syncio = lp_parm_bool(SNUM(handle->conn), "gpfs",
1568 "syncio", false);
1569
1570 config->winattr = lp_parm_bool(SNUM(handle->conn), "gpfs",
1571 "winattr", false);
1572
1573 config->ftruncate = lp_parm_bool(SNUM(handle->conn), "gpfs",
1574 "ftruncate", true);
1575
1576 config->getrealfilename = lp_parm_bool(SNUM(handle->conn), "gpfs",
1577 "getrealfilename", true);
1578
1579 config->dfreequota = lp_parm_bool(SNUM(handle->conn), "gpfs",
1580 "dfreequota", false);
1581
1582 config->prealloc = lp_parm_bool(SNUM(handle->conn), "gpfs",
1583 "prealloc", true);
1584
1585 config->acl = lp_parm_bool(SNUM(handle->conn), "gpfs", "acl", true);
1586
1587 SMB_VFS_HANDLE_SET_DATA(handle, config,
1588 NULL, struct gpfs_config_data,
1589 return -1);
1590
1591 if (config->leases) {
1592 /*
1593 * GPFS lease code is based on kernel oplock code
1594 * so make sure it is turned on
1595 */
1596 if (!lp_kernel_oplocks(SNUM(handle->conn))) {
1597 DEBUG(5, ("Enabling kernel oplocks for "
1598 "gpfs:leases to work\n"));
1599 lp_do_parameter(SNUM(handle->conn), "kernel oplocks",
1600 "true");
1601 }
1602
1603 /*
1604 * as the kernel does not properly support Level II oplocks
1605 * and GPFS leases code is based on kernel infrastructure, we
1606 * need to turn off Level II oplocks if gpfs:leases is enabled
1607 */
1608 if (lp_level2_oplocks(SNUM(handle->conn))) {
1609 DEBUG(5, ("gpfs:leases are enabled, disabling "
1610 "Level II oplocks\n"));
1611 lp_do_parameter(SNUM(handle->conn), "level2 oplocks",
1612 "false");
1613 }
1614 }
1615
1616 return 0;
1617 }
1618
1619 static int vfs_gpfs_get_quotas(const char *path, uid_t uid, gid_t gid,
1620 int *fset_id,
1621 struct gpfs_quotaInfo *qi_user,
1622 struct gpfs_quotaInfo *qi_group,
1623 struct gpfs_quotaInfo *qi_fset)
1624 {
1625 int err;
1626 char *dir_path;
1627 bool b;
1628
1629 /*
1630 * We want to always use the directory to get the fileset id,
1631 * because files might have a share mode. We also do not want
1632 * to get the parent directory when there is already a
1633 * directory to avoid stepping in a different fileset. The
1634 * path passed here is currently either "." or a filename, so
1635 * this is ok. The proper solution would be having a way to
1636 * query the fileset id without opening the file.
1637 */
1638 b = parent_dirname(talloc_tos(), path, &dir_path, NULL);
1639 if (!b) {
1640 errno = ENOMEM;
1641 return -1;
1642 }
1643
1644 DEBUG(10, ("path %s, directory %s\n", path, dir_path));
1645
1646 err = get_gpfs_fset_id(dir_path, fset_id);
1647 if (err) {
1648 DEBUG(0, ("Get fset id failed path %s, dir %s, errno %d.\n",
1649 path, dir_path, errno));
1650 return err;
1651 }
1652
1653 err = get_gpfs_quota(path, GPFS_USRQUOTA, uid, qi_user);
1654 if (err) {
1655 return err;
1656 }
1657
1658 err = get_gpfs_quota(path, GPFS_GRPQUOTA, gid, qi_group);
1659 if (err) {
1660 return err;
1661 }
1662
1663 err = get_gpfs_quota(path, GPFS_FILESETQUOTA, *fset_id, qi_fset);
1664 if (err) {
1665 return err;
1666 }
1667
1668 return 0;
1669 }
1670
1671 static void vfs_gpfs_disk_free_quota(struct gpfs_quotaInfo qi, time_t cur_time,
1672 uint64_t *dfree, uint64_t *dsize)
1673 {
1674 uint64_t usage, limit;
1675
1676 /*
1677 * The quota reporting is done in units of 1024 byte blocks, but
1678 * sys_fsusage uses units of 512 byte blocks, adjust the block number
1679 * accordingly. Also filter possibly negative usage counts from gpfs.
1680 */
1681 usage = qi.blockUsage < 0 ? 0 : (uint64_t)qi.blockUsage * 2;
1682 limit = (uint64_t)qi.blockHardLimit * 2;
1683
1684 /*
1685 * When the grace time for the exceeded soft block quota has been
1686 * exceeded, the soft block quota becomes an additional hard limit.
1687 */
1688 if (qi.blockSoftLimit &&
1689 qi.blockGraceTime && cur_time > qi.blockGraceTime) {
1690 /* report disk as full */
1691 *dfree = 0;
1692 *dsize = MIN(*dsize, usage);
1693 }
1694
1695 if (!qi.blockHardLimit)
1696 return;
1697
1698 if (usage >= limit) {
1699 /* report disk as full */
1700 *dfree = 0;
1701 *dsize = MIN(*dsize, usage);
1702
1703 } else {
1704 /* limit has not been reached, determine "free space" */
1705 *dfree = MIN(*dfree, limit - usage);
1706 *dsize = MIN(*dsize, limit);
1707 }
1708 }
1709
1710 static uint64_t vfs_gpfs_disk_free(vfs_handle_struct *handle, const char *path,
1711 bool small_query, uint64_t *bsize,
1712 uint64_t *dfree, uint64_t *dsize)
1713 {
1714 struct security_unix_token *utok;
1715 struct gpfs_quotaInfo qi_user, qi_group, qi_fset;
1716 struct gpfs_config_data *config;
1717 int err, fset_id;
1718 time_t cur_time;
1719
1720 SMB_VFS_HANDLE_GET_DATA(handle, config, struct gpfs_config_data,
1721 return (uint64_t)-1);
1722 if (!config->dfreequota) {
1723 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1724 bsize, dfree, dsize);
1725 }
1726
1727 err = sys_fsusage(path, dfree, dsize);
1728 if (err) {
1729 DEBUG (0, ("Could not get fs usage, errno %d\n", errno));
1730 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1731 bsize, dfree, dsize);
1732 }
1733
1734 /* sys_fsusage returns units of 512 bytes */
1735 *bsize = 512;
1736
1737 DEBUG(10, ("fs dfree %llu, dsize %llu\n",
1738 (unsigned long long)*dfree, (unsigned long long)*dsize));
1739
1740 utok = handle->conn->session_info->unix_token;
1741 err = vfs_gpfs_get_quotas(path, utok->uid, utok->gid, &fset_id,
1742 &qi_user, &qi_group, &qi_fset);
1743 if (err) {
1744 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1745 bsize, dfree, dsize);
1746 }
1747
1748 cur_time = time(NULL);
1749
1750 /* Adjust free space and size according to quota limits. */
1751 vfs_gpfs_disk_free_quota(qi_user, cur_time, dfree, dsize);
1752 vfs_gpfs_disk_free_quota(qi_group, cur_time, dfree, dsize);
1753
1754 /* Id 0 indicates the default quota, not an actual quota */
1755 if (fset_id != 0) {
1756 vfs_gpfs_disk_free_quota(qi_fset, cur_time, dfree, dsize);
1757 }
1758
1759 disk_norm(small_query, bsize, dfree, dsize);
1760 return *dfree;
1761 }
1762
1763 static uint32_t vfs_gpfs_capabilities(struct vfs_handle_struct *handle,
1764 enum timestamp_set_resolution *p_ts_res)
1765 {
1766 struct gpfs_config_data *config;
1767 uint32_t next;
1768
1769 next = SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
1770
1771 SMB_VFS_HANDLE_GET_DATA(handle, config,
1772 struct gpfs_config_data,
1773 return next);
1774
1775 if (config->hsm) {
1776 next |= FILE_SUPPORTS_REMOTE_STORAGE;
1777 }
1778 return next;
1779 }
1780
1781 static int vfs_gpfs_open(struct vfs_handle_struct *handle,
1782 struct smb_filename *smb_fname, files_struct *fsp,
1783 int flags, mode_t mode)
1784 {
1785 struct gpfs_config_data *config;
1786
1787 SMB_VFS_HANDLE_GET_DATA(handle, config,
1788 struct gpfs_config_data,
1789 return -1);
1790
1791 if (config->syncio) {
1792 flags |= O_SYNC;
1793 }
1794 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1795 }
1796
1797 static ssize_t vfs_gpfs_pread(vfs_handle_struct *handle, files_struct *fsp,
1798 void *data, size_t n, off_t offset)
1799 {
1800 ssize_t ret;
1801
1802 ret = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
1803
1804 DEBUG(10, ("vfs_private = %x\n",
1805 (unsigned int)fsp->fsp_name->st.vfs_private));
1806
1807 if ((ret != -1) &&
1808 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1809 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1810 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
1811 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1812 fsp->fsp_name->base_name);
1813 }
1814
1815 return ret;
1816 }
1817
1818 struct vfs_gpfs_pread_state {
1819 struct files_struct *fsp;
1820 ssize_t ret;
1821 int err;
1822 };
1823
1824 static void vfs_gpfs_pread_done(struct tevent_req *subreq);
1825
1826 static struct tevent_req *vfs_gpfs_pread_send(struct vfs_handle_struct *handle,
1827 TALLOC_CTX *mem_ctx,
1828 struct tevent_context *ev,
1829 struct files_struct *fsp,
1830 void *data, size_t n,
1831 off_t offset)
1832 {
1833 struct tevent_req *req, *subreq;
1834 struct vfs_gpfs_pread_state *state;
1835
1836 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pread_state);
1837 if (req == NULL) {
1838 return NULL;
1839 }
1840 state->fsp = fsp;
1841 subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
1842 n, offset);
1843 if (tevent_req_nomem(subreq, req)) {
1844 return tevent_req_post(req, ev);
1845 }
1846 tevent_req_set_callback(subreq, vfs_gpfs_pread_done, req);
1847 return req;
1848 }
1849
1850 static void vfs_gpfs_pread_done(struct tevent_req *subreq)
1851 {
1852 struct tevent_req *req = tevent_req_callback_data(
1853 subreq, struct tevent_req);
1854 struct vfs_gpfs_pread_state *state = tevent_req_data(
1855 req, struct vfs_gpfs_pread_state);
1856
1857 state->ret = SMB_VFS_PREAD_RECV(subreq, &state->err);
1858 TALLOC_FREE(subreq);
1859 tevent_req_done(req);
1860 }
1861
1862 static ssize_t vfs_gpfs_pread_recv(struct tevent_req *req, int *err)
1863 {
1864 struct vfs_gpfs_pread_state *state = tevent_req_data(
1865 req, struct vfs_gpfs_pread_state);
1866 struct files_struct *fsp = state->fsp;
1867
1868 if (tevent_req_is_unix_error(req, err)) {
1869 return -1;
1870 }
1871 *err = state->err;
1872
1873 DEBUG(10, ("vfs_private = %x\n",
1874 (unsigned int)fsp->fsp_name->st.vfs_private));
1875
1876 if ((state->ret != -1) &&
1877 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1878 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1879 DEBUG(10, ("sending notify\n"));
1880 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
1881 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1882 fsp->fsp_name->base_name);
1883 }
1884
1885 return state->ret;
1886 }
1887
1888 static ssize_t vfs_gpfs_pwrite(vfs_handle_struct *handle, files_struct *fsp,
1889 const void *data, size_t n, off_t offset)
1890 {
1891 ssize_t ret;
1892
1893 ret = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
1894
1895 DEBUG(10, ("vfs_private = %x\n",
1896 (unsigned int)fsp->fsp_name->st.vfs_private));
1897
1898 if ((ret != -1) &&
1899 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1900 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1901 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
1902 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1903 fsp->fsp_name->base_name);
1904 }
1905
1906 return ret;
1907 }
1908
1909 struct vfs_gpfs_pwrite_state {
1910 struct files_struct *fsp;
1911 ssize_t ret;
1912 int err;
1913 };
1914
1915 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq);
1916
1917 static struct tevent_req *vfs_gpfs_pwrite_send(
1918 struct vfs_handle_struct *handle,
1919 TALLOC_CTX *mem_ctx,
1920 struct tevent_context *ev,
1921 struct files_struct *fsp,
1922 const void *data, size_t n,
1923 off_t offset)
1924 {
1925 struct tevent_req *req, *subreq;
1926 struct vfs_gpfs_pwrite_state *state;
1927
1928 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pwrite_state);
1929 if (req == NULL) {
1930 return NULL;
1931 }
1932 state->fsp = fsp;
1933 subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
1934 n, offset);
1935 if (tevent_req_nomem(subreq, req)) {
1936 return tevent_req_post(req, ev);
1937 }
1938 tevent_req_set_callback(subreq, vfs_gpfs_pwrite_done, req);
1939 return req;
1940 }
1941
1942 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq)
1943 {
1944 struct tevent_req *req = tevent_req_callback_data(
1945 subreq, struct tevent_req);
1946 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
1947 req, struct vfs_gpfs_pwrite_state);
1948
1949 state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->err);
1950 TALLOC_FREE(subreq);
1951 tevent_req_done(req);
1952 }
1953
1954 static ssize_t vfs_gpfs_pwrite_recv(struct tevent_req *req, int *err)
1955 {
1956 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
1957 req, struct vfs_gpfs_pwrite_state);
1958 struct files_struct *fsp = state->fsp;
1959
1960 if (tevent_req_is_unix_error(req, err)) {
1961 return -1;
1962 }
1963 *err = state->err;
1964
1965 DEBUG(10, ("vfs_private = %x\n",
1966 (unsigned int)fsp->fsp_name->st.vfs_private));
1967
1968 if ((state->ret != -1) &&
1969 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1970 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1971 DEBUG(10, ("sending notify\n"));
1972 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
1973 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1974 fsp->fsp_name->base_name);
1975 }
1976
1977 return state->ret;
1978 }
1979
1980
1981 static struct vfs_fn_pointers vfs_gpfs_fns = {
1982 .connect_fn = vfs_gpfs_connect,
1983 .disk_free_fn = vfs_gpfs_disk_free,
1984 .fs_capabilities_fn = vfs_gpfs_capabilities,
1985 .kernel_flock_fn = vfs_gpfs_kernel_flock,
1986 .linux_setlease_fn = vfs_gpfs_setlease,
1987 .get_real_filename_fn = vfs_gpfs_get_real_filename,
1988 .fget_nt_acl_fn = gpfsacl_fget_nt_acl,
1989 .get_nt_acl_fn = gpfsacl_get_nt_acl,
1990 .fset_nt_acl_fn = gpfsacl_fset_nt_acl,
1991 .sys_acl_get_file_fn = gpfsacl_sys_acl_get_file,
1992 .sys_acl_get_fd_fn = gpfsacl_sys_acl_get_fd,
1993 .sys_acl_blob_get_file_fn = gpfsacl_sys_acl_blob_get_file,
1994 .sys_acl_blob_get_fd_fn = gpfsacl_sys_acl_blob_get_fd,
1995 .sys_acl_set_file_fn = gpfsacl_sys_acl_set_file,
1996 .sys_acl_set_fd_fn = gpfsacl_sys_acl_set_fd,
1997 .sys_acl_delete_def_file_fn = gpfsacl_sys_acl_delete_def_file,
1998 .chmod_fn = vfs_gpfs_chmod,
1999 .fchmod_fn = vfs_gpfs_fchmod,
2000 .close_fn = vfs_gpfs_close,
2001 .setxattr_fn = gpfs_set_xattr,
2002 .getxattr_fn = gpfs_get_xattr,
2003 .stat_fn = vfs_gpfs_stat,
2004 .fstat_fn = vfs_gpfs_fstat,
2005 .lstat_fn = vfs_gpfs_lstat,
2006 .ntimes_fn = vfs_gpfs_ntimes,
2007 .is_offline_fn = vfs_gpfs_is_offline,
2008 .aio_force_fn = vfs_gpfs_aio_force,
2009 .sendfile_fn = vfs_gpfs_sendfile,
2010 .fallocate_fn = vfs_gpfs_fallocate,
2011 .open_fn = vfs_gpfs_open,
2012 .pread_fn = vfs_gpfs_pread,
2013 .pread_send_fn = vfs_gpfs_pread_send,
2014 .pread_recv_fn = vfs_gpfs_pread_recv,
2015 .pwrite_fn = vfs_gpfs_pwrite,
2016 .pwrite_send_fn = vfs_gpfs_pwrite_send,
2017 .pwrite_recv_fn = vfs_gpfs_pwrite_recv,
2018 .ftruncate_fn = vfs_gpfs_ftruncate
2019 };
2020
2021 NTSTATUS vfs_gpfs_init(void);
2022 NTSTATUS vfs_gpfs_init(void)
2023 {
2024 init_gpfs();
2025
2026 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
2027 &vfs_gpfs_fns);
2028 }
reg import