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s3:vfs_gpfs fix the build
[Samba/bjacke.git] / source3 / modules / vfs_gpfs.c
blobba751b94032003b1e1f52d001cd43fe8033c0514
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 errno = ENOMEM;
246 return NULL;
247 }
248
249 new_acl->acl_len = acl->acl_len;
250 new_acl->acl_level = acl->acl_level;
251 new_acl->acl_version = acl->acl_version;
252 new_acl->acl_type = acl->acl_type;
253 acl = new_acl;
254
255 ret = smbd_gpfs_getacl((char *)fname, GPFS_GETACL_STRUCT, acl);
256 }
257 if (ret != 0)
258 {
259 DEBUG(8, ("smbd_gpfs_getacl failed with %s\n",strerror(errno)));
260 return NULL;
261 }
262
263 return acl;
264 }
265
266 /* Tries to get nfs4 acls and returns SMB ACL allocated.
267 * On failure returns 1 if it got non-NFSv4 ACL to prompt
268 * retry with POSIX ACL checks.
269 * On failure returns -1 if there is system (GPFS) error, check errno.
270 * Returns 0 on success
271 */
272 static int gpfs_get_nfs4_acl(const char *fname, SMB4ACL_T **ppacl)
273 {
274 gpfs_aclCount_t i;
275 struct gpfs_acl *gacl = NULL;
276 DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname));
277
278 /* First get the real acl length */
279 gacl = gpfs_getacl_alloc(fname, 0);
280 if (gacl == NULL) {
281 DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
282 fname, strerror(errno)));
283 return -1;
284 }
285
286 if (gacl->acl_type != GPFS_ACL_TYPE_NFS4) {
287 DEBUG(10, ("Got non-nfsv4 acl\n"));
288 /* Retry with POSIX ACLs check */
289 return 1;
290 }
291
292 *ppacl = smb_create_smb4acl();
293
294 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
295 gacl->acl_len, gacl->acl_level, gacl->acl_version,
296 gacl->acl_nace));
297
298 for (i=0; i<gacl->acl_nace; i++) {
299 struct gpfs_ace_v4 *gace = &gacl->ace_v4[i];
300 SMB_ACE4PROP_T smbace;
301 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
302 "who: %d\n", gace->aceType, gace->aceIFlags,
303 gace->aceFlags, gace->aceMask, gace->aceWho));
304
305 ZERO_STRUCT(smbace);
306 if (gace->aceIFlags & ACE4_IFLAG_SPECIAL_ID) {
307 smbace.flags |= SMB_ACE4_ID_SPECIAL;
308 switch (gace->aceWho) {
309 case ACE4_SPECIAL_OWNER:
310 smbace.who.special_id = SMB_ACE4_WHO_OWNER;
311 break;
312 case ACE4_SPECIAL_GROUP:
313 smbace.who.special_id = SMB_ACE4_WHO_GROUP;
314 break;
315 case ACE4_SPECIAL_EVERYONE:
316 smbace.who.special_id = SMB_ACE4_WHO_EVERYONE;
317 break;
318 default:
319 DEBUG(8, ("invalid special gpfs id %d "
320 "ignored\n", gace->aceWho));
321 continue; /* don't add it */
322 }
323 } else {
324 if (gace->aceFlags & ACE4_FLAG_GROUP_ID)
325 smbace.who.gid = gace->aceWho;
326 else
327 smbace.who.uid = gace->aceWho;
328 }
329
330 /* remove redundent deny entries */
331 if (i > 0 && gace->aceType == SMB_ACE4_ACCESS_DENIED_ACE_TYPE) {
332 struct gpfs_ace_v4 *prev = &gacl->ace_v4[i-1];
333 if (prev->aceType == SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE &&
334 prev->aceFlags == gace->aceFlags &&
335 prev->aceIFlags == gace->aceIFlags &&
336 (gace->aceMask & prev->aceMask) == 0 &&
337 gace->aceWho == prev->aceWho) {
338 /* its redundent - skip it */
339 continue;
340 }
341 }
342
343 smbace.aceType = gace->aceType;
344 smbace.aceFlags = gace->aceFlags;
345 smbace.aceMask = gace->aceMask;
346 smb_add_ace4(*ppacl, &smbace);
347 }
348
349 return 0;
350 }
351
352 static NTSTATUS gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
353 files_struct *fsp, uint32 security_info,
354 TALLOC_CTX *mem_ctx,
355 struct security_descriptor **ppdesc)
356 {
357 SMB4ACL_T *pacl = NULL;
358 int result;
359 struct gpfs_config_data *config;
360
361 *ppdesc = NULL;
362
363 SMB_VFS_HANDLE_GET_DATA(handle, config,
364 struct gpfs_config_data,
365 return NT_STATUS_INTERNAL_ERROR);
366
367 if (!config->acl) {
368 return SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info,
369 mem_ctx, ppdesc);
370 }
371
372 result = gpfs_get_nfs4_acl(fsp->fsp_name->base_name, &pacl);
373
374 if (result == 0)
375 return smb_fget_nt_acl_nfs4(fsp, security_info, mem_ctx, ppdesc, pacl);
376
377 if (result > 0) {
378 DEBUG(10, ("retrying with posix acl...\n"));
379 return posix_fget_nt_acl(fsp, security_info, mem_ctx, ppdesc);
380 }
381
382 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
383 return map_nt_error_from_unix(errno);
384 }
385
386 static NTSTATUS gpfsacl_get_nt_acl(vfs_handle_struct *handle,
387 const char *name,
388 uint32 security_info,
389 TALLOC_CTX *mem_ctx, struct security_descriptor **ppdesc)
390 {
391 SMB4ACL_T *pacl = NULL;
392 int result;
393 struct gpfs_config_data *config;
394
395 *ppdesc = NULL;
396
397 SMB_VFS_HANDLE_GET_DATA(handle, config,
398 struct gpfs_config_data,
399 return NT_STATUS_INTERNAL_ERROR);
400
401 if (!config->acl) {
402 return SMB_VFS_NEXT_GET_NT_ACL(handle, name, security_info,
403 mem_ctx, ppdesc);
404 }
405
406 result = gpfs_get_nfs4_acl(name, &pacl);
407
408 if (result == 0)
409 return smb_get_nt_acl_nfs4(handle->conn, name, security_info,
410 mem_ctx, ppdesc, pacl);
411
412 if (result > 0) {
413 DEBUG(10, ("retrying with posix acl...\n"));
414 return posix_get_nt_acl(handle->conn, name, security_info,
415 mem_ctx, ppdesc);
416 }
417
418 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
419 return map_nt_error_from_unix(errno);
420 }
421
422 static bool gpfsacl_process_smbacl(files_struct *fsp, SMB4ACL_T *smbacl)
423 {
424 int ret;
425 gpfs_aclLen_t gacl_len;
426 SMB4ACE_T *smbace;
427 struct gpfs_acl *gacl;
428 TALLOC_CTX *mem_ctx = talloc_tos();
429
430 gacl_len = offsetof(gpfs_acl_t, ace_v4) + smb_get_naces(smbacl) *
431 sizeof(gpfs_ace_v4_t);
432
433 gacl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, gacl_len);
434 if (gacl == NULL) {
435 DEBUG(0, ("talloc failed\n"));
436 errno = ENOMEM;
437 return False;
438 }
439
440 gacl->acl_len = gacl_len;
441 gacl->acl_level = 0;
442 gacl->acl_version = GPFS_ACL_VERSION_NFS4;
443 gacl->acl_type = GPFS_ACL_TYPE_NFS4;
444 gacl->acl_nace = 0; /* change later... */
445
446 for (smbace=smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
447 struct gpfs_ace_v4 *gace = &gacl->ace_v4[gacl->acl_nace];
448 SMB_ACE4PROP_T *aceprop = smb_get_ace4(smbace);
449
450 gace->aceType = aceprop->aceType;
451 gace->aceFlags = aceprop->aceFlags;
452 gace->aceMask = aceprop->aceMask;
453
454 /*
455 * GPFS can't distinguish between WRITE and APPEND on
456 * files, so one being set without the other is an
457 * error. Sorry for the many ()'s :-)
458 */
459
460 if (!fsp->is_directory
461 &&
462 ((((gace->aceMask & ACE4_MASK_WRITE) == 0)
463 && ((gace->aceMask & ACE4_MASK_APPEND) != 0))
464 ||
465 (((gace->aceMask & ACE4_MASK_WRITE) != 0)
466 && ((gace->aceMask & ACE4_MASK_APPEND) == 0)))
467 &&
468 lp_parm_bool(fsp->conn->params->service, "gpfs",
469 "merge_writeappend", True)) {
470 DEBUG(2, ("vfs_gpfs.c: file [%s]: ACE contains "
471 "WRITE^APPEND, setting WRITE|APPEND\n",
472 fsp_str_dbg(fsp)));
473 gace->aceMask |= ACE4_MASK_WRITE|ACE4_MASK_APPEND;
474 }
475
476 gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
477
478 if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
479 {
480 switch(aceprop->who.special_id)
481 {
482 case SMB_ACE4_WHO_EVERYONE:
483 gace->aceWho = ACE4_SPECIAL_EVERYONE;
484 break;
485 case SMB_ACE4_WHO_OWNER:
486 gace->aceWho = ACE4_SPECIAL_OWNER;
487 break;
488 case SMB_ACE4_WHO_GROUP:
489 gace->aceWho = ACE4_SPECIAL_GROUP;
490 break;
491 default:
492 DEBUG(8, ("unsupported special_id %d\n", aceprop->who.special_id));
493 continue; /* don't add it !!! */
494 }
495 } else {
496 /* just only for the type safety... */
497 if (aceprop->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
498 gace->aceWho = aceprop->who.gid;
499 else
500 gace->aceWho = aceprop->who.uid;
501 }
502
503 gacl->acl_nace++;
504 }
505
506 ret = smbd_gpfs_putacl(fsp->fsp_name->base_name,
507 GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gacl);
508 if (ret != 0) {
509 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno)));
510 gpfs_dumpacl(8, gacl);
511 return False;
512 }
513
514 DEBUG(10, ("gpfs_putacl succeeded\n"));
515 return True;
516 }
517
518 static NTSTATUS gpfsacl_set_nt_acl_internal(files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
519 {
520 struct gpfs_acl *acl;
521 NTSTATUS result = NT_STATUS_ACCESS_DENIED;
522
523 acl = gpfs_getacl_alloc(fsp->fsp_name->base_name, 0);
524 if (acl == NULL)
525 return result;
526
527 if (acl->acl_version&GPFS_ACL_VERSION_NFS4)
528 {
529 if (lp_parm_bool(fsp->conn->params->service, "gpfs",
530 "refuse_dacl_protected", false)
531 && (psd->type&SEC_DESC_DACL_PROTECTED)) {
532 DEBUG(2, ("Rejecting unsupported ACL with DACL_PROTECTED bit set\n"));
533 return NT_STATUS_NOT_SUPPORTED;
534 }
535
536 result = smb_set_nt_acl_nfs4(
537 fsp, security_info_sent, psd,
538 gpfsacl_process_smbacl);
539 } else { /* assume POSIX ACL - by default... */
540 result = set_nt_acl(fsp, security_info_sent, psd);
541 }
542
543 return result;
544 }
545
546 static NTSTATUS gpfsacl_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
547 {
548 struct gpfs_config_data *config;
549
550 SMB_VFS_HANDLE_GET_DATA(handle, config,
551 struct gpfs_config_data,
552 return NT_STATUS_INTERNAL_ERROR);
553
554 if (!config->acl) {
555 return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
556 }
557
558 return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
559 }
560
561 static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl, TALLOC_CTX *mem_ctx)
562 {
563 SMB_ACL_T result;
564 gpfs_aclCount_t i;
565
566 result = sys_acl_init(mem_ctx);
567 if (result == NULL) {
568 errno = ENOMEM;
569 return NULL;
570 }
571
572 result->count = pacl->acl_nace;
573
574 for (i=0; i<pacl->acl_nace; i++) {
575 struct smb_acl_entry *ace = &result->acl[i];
576 const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
577
578 DEBUG(10, ("Converting type %d id %lu perm %x\n",
579 (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
580 (int)g_ace->ace_perm));
581
582 switch (g_ace->ace_type) {
583 case GPFS_ACL_USER:
584 ace->a_type = SMB_ACL_USER;
585 ace->info.user.uid = (uid_t)g_ace->ace_who;
586 break;
587 case GPFS_ACL_USER_OBJ:
588 ace->a_type = SMB_ACL_USER_OBJ;
589 break;
590 case GPFS_ACL_GROUP:
591 ace->a_type = SMB_ACL_GROUP;
592 ace->info.group.gid = (gid_t)g_ace->ace_who;
593 break;
594 case GPFS_ACL_GROUP_OBJ:
595 ace->a_type = SMB_ACL_GROUP_OBJ;
596 break;
597 case GPFS_ACL_OTHER:
598 ace->a_type = SMB_ACL_OTHER;
599 break;
600 case GPFS_ACL_MASK:
601 ace->a_type = SMB_ACL_MASK;
602 break;
603 default:
604 DEBUG(10, ("Got invalid ace_type: %d\n",
605 g_ace->ace_type));
606 errno = EINVAL;
607 TALLOC_FREE(result);
608 return NULL;
609 }
610
611 ace->a_perm = 0;
612 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
613 SMB_ACL_READ : 0;
614 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
615 SMB_ACL_WRITE : 0;
616 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
617 SMB_ACL_EXECUTE : 0;
618
619 DEBUGADD(10, ("Converted to %d perm %x\n",
620 ace->a_type, ace->a_perm));
621 }
622
623 return result;
624 }
625
626 static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type,
627 TALLOC_CTX *mem_ctx)
628 {
629 struct gpfs_acl *pacl;
630 SMB_ACL_T result = NULL;
631
632 pacl = gpfs_getacl_alloc(path, type);
633
634 if (pacl == NULL) {
635 DEBUG(10, ("gpfs_getacl failed for %s with %s\n",
636 path, strerror(errno)));
637 if (errno == 0) {
638 errno = EINVAL;
639 }
640 goto done;
641 }
642
643 if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
644 DEBUG(10, ("Got acl version %d, expected %d\n",
645 pacl->acl_version, GPFS_ACL_VERSION_POSIX));
646 errno = EINVAL;
647 goto done;
648 }
649
650 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
651 pacl->acl_len, pacl->acl_level, pacl->acl_version,
652 pacl->acl_nace));
653
654 result = gpfs2smb_acl(pacl, mem_ctx);
655 if (result != NULL) {
656 errno = 0;
657 }
658
659 done:
660
661 if (errno != 0) {
662 TALLOC_FREE(result);
663 }
664 return result;
665 }
666
667 static SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
668 const char *path_p,
669 SMB_ACL_TYPE_T type,
670 TALLOC_CTX *mem_ctx)
671 {
672 gpfs_aclType_t gpfs_type;
673 struct gpfs_config_data *config;
674
675 SMB_VFS_HANDLE_GET_DATA(handle, config,
676 struct gpfs_config_data,
677 return NULL);
678
679 if (!config->acl) {
680 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p,
681 type, mem_ctx);
682 }
683
684 switch(type) {
685 case SMB_ACL_TYPE_ACCESS:
686 gpfs_type = GPFS_ACL_TYPE_ACCESS;
687 break;
688 case SMB_ACL_TYPE_DEFAULT:
689 gpfs_type = GPFS_ACL_TYPE_DEFAULT;
690 break;
691 default:
692 DEBUG(0, ("Got invalid type: %d\n", type));
693 smb_panic("exiting");
694 }
695
696 return gpfsacl_get_posix_acl(path_p, gpfs_type, mem_ctx);
697 }
698
699 static SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
700 files_struct *fsp,
701 TALLOC_CTX *mem_ctx)
702 {
703 struct gpfs_config_data *config;
704
705 SMB_VFS_HANDLE_GET_DATA(handle, config,
706 struct gpfs_config_data,
707 return NULL);
708
709 if (!config->acl) {
710 return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
711 }
712
713 return gpfsacl_get_posix_acl(fsp->fsp_name->base_name,
714 GPFS_ACL_TYPE_ACCESS, mem_ctx);
715 }
716
717 static int gpfsacl_sys_acl_blob_get_file(vfs_handle_struct *handle, const char *path_p,
718 TALLOC_CTX *mem_ctx,
719 char **blob_description,
720 DATA_BLOB *blob)
721 {
722 struct gpfs_config_data *config;
723 SMB4ACL_T *pacl = NULL;
724 int result;
725
726 SMB_VFS_HANDLE_GET_DATA(handle, config,
727 struct gpfs_config_data,
728 return -1);
729
730 if (!config->acl) {
731 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, path_p, mem_ctx, blob_description, blob);
732 }
733
734 result = gpfs_get_nfs4_acl(path_p, &pacl);
735 if (result == 0) {
736 /* We don't have a way to linearlise the NFS4 ACL
737 * right now, and it is much closer to the NT ACL
738 * anyway */
739 errno = EINVAL;
740 return -1;
741 }
742
743 return posix_sys_acl_blob_get_file(handle, path_p, mem_ctx,
744 blob_description, blob);
745 }
746
747 static int gpfsacl_sys_acl_blob_get_fd(vfs_handle_struct *handle, files_struct *fsp,
748 TALLOC_CTX *mem_ctx,
749 char **blob_description,
750 DATA_BLOB *blob)
751 {
752 struct gpfs_config_data *config;
753 SMB4ACL_T *pacl = NULL;
754 int result;
755
756 SMB_VFS_HANDLE_GET_DATA(handle, config,
757 struct gpfs_config_data,
758 return -1);
759
760 if (!config->acl) {
761 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx, blob_description, blob);
762 }
763
764 result = gpfs_get_nfs4_acl(fsp->fsp_name->base_name, &pacl);
765 if (result == 0) {
766 /* We don't have a way to linearlise the NFS4 ACL
767 * right now, and it is much closer to the NT ACL
768 * anyway */
769 errno = EINVAL;
770 return -1;
771 }
772
773 return posix_sys_acl_blob_get_fd(handle, fsp, mem_ctx,
774 blob_description, blob);
775 }
776
777 static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
778 SMB_ACL_TYPE_T type)
779 {
780 gpfs_aclLen_t len;
781 struct gpfs_acl *result;
782 int i;
783
784 DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
785
786 len = offsetof(gpfs_acl_t, ace_v1) + (pacl->count) *
787 sizeof(gpfs_ace_v1_t);
788
789 result = (struct gpfs_acl *)SMB_MALLOC(len);
790 if (result == NULL) {
791 errno = ENOMEM;
792 return result;
793 }
794
795 result->acl_len = len;
796 result->acl_level = 0;
797 result->acl_version = GPFS_ACL_VERSION_POSIX;
798 result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
799 GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
800 result->acl_nace = pacl->count;
801
802 for (i=0; i<pacl->count; i++) {
803 const struct smb_acl_entry *ace = &pacl->acl[i];
804 struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
805
806 DEBUG(10, ("Converting type %d perm %x\n",
807 (int)ace->a_type, (int)ace->a_perm));
808
809 g_ace->ace_perm = 0;
810
811 switch(ace->a_type) {
812 case SMB_ACL_USER:
813 g_ace->ace_type = GPFS_ACL_USER;
814 g_ace->ace_who = (gpfs_uid_t)ace->info.user.uid;
815 break;
816 case SMB_ACL_USER_OBJ:
817 g_ace->ace_type = GPFS_ACL_USER_OBJ;
818 g_ace->ace_perm |= ACL_PERM_CONTROL;
819 g_ace->ace_who = 0;
820 break;
821 case SMB_ACL_GROUP:
822 g_ace->ace_type = GPFS_ACL_GROUP;
823 g_ace->ace_who = (gpfs_uid_t)ace->info.group.gid;
824 break;
825 case SMB_ACL_GROUP_OBJ:
826 g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
827 g_ace->ace_who = 0;
828 break;
829 case SMB_ACL_MASK:
830 g_ace->ace_type = GPFS_ACL_MASK;
831 g_ace->ace_perm = 0x8f;
832 g_ace->ace_who = 0;
833 break;
834 case SMB_ACL_OTHER:
835 g_ace->ace_type = GPFS_ACL_OTHER;
836 g_ace->ace_who = 0;
837 break;
838 default:
839 DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
840 errno = EINVAL;
841 SAFE_FREE(result);
842 return NULL;
843 }
844
845 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
846 ACL_PERM_READ : 0;
847 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
848 ACL_PERM_WRITE : 0;
849 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
850 ACL_PERM_EXECUTE : 0;
851
852 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
853 g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
854 }
855
856 return result;
857 }
858
859 static int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
860 const char *name,
861 SMB_ACL_TYPE_T type,
862 SMB_ACL_T theacl)
863 {
864 struct gpfs_acl *gpfs_acl;
865 int result;
866 struct gpfs_config_data *config;
867
868 SMB_VFS_HANDLE_GET_DATA(handle, config,
869 struct gpfs_config_data,
870 return -1);
871
872 if (!config->acl) {
873 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name, type, theacl);
874 }
875
876 gpfs_acl = smb2gpfs_acl(theacl, type);
877 if (gpfs_acl == NULL) {
878 return -1;
879 }
880
881 result = smbd_gpfs_putacl((char *)name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gpfs_acl);
882
883 SAFE_FREE(gpfs_acl);
884 return result;
885 }
886
887 static int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
888 files_struct *fsp,
889 SMB_ACL_T theacl)
890 {
891 struct gpfs_config_data *config;
892
893 SMB_VFS_HANDLE_GET_DATA(handle, config,
894 struct gpfs_config_data,
895 return -1);
896
897 if (!config->acl) {
898 return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
899 }
900
901 return gpfsacl_sys_acl_set_file(handle, fsp->fsp_name->base_name,
902 SMB_ACL_TYPE_ACCESS, theacl);
903 }
904
905 static int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
906 const char *path)
907 {
908 struct gpfs_config_data *config;
909
910 SMB_VFS_HANDLE_GET_DATA(handle, config,
911 struct gpfs_config_data,
912 return -1);
913
914 if (!config->acl) {
915 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
916 }
917
918 errno = ENOTSUP;
919 return -1;
920 }
921
922 /*
923 * Assumed: mode bits are shiftable and standard
924 * Output: the new aceMask field for an smb nfs4 ace
925 */
926 static uint32 gpfsacl_mask_filter(uint32 aceType, uint32 aceMask, uint32 rwx)
927 {
928 const uint32 posix_nfs4map[3] = {
929 SMB_ACE4_EXECUTE, /* execute */
930 SMB_ACE4_WRITE_DATA | SMB_ACE4_APPEND_DATA, /* write; GPFS specific */
931 SMB_ACE4_READ_DATA /* read */
932 };
933 int i;
934 uint32_t posix_mask = 0x01;
935 uint32_t posix_bit;
936 uint32_t nfs4_bits;
937
938 for(i=0; i<3; i++) {
939 nfs4_bits = posix_nfs4map[i];
940 posix_bit = rwx & posix_mask;
941
942 if (aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE) {
943 if (posix_bit)
944 aceMask |= nfs4_bits;
945 else
946 aceMask &= ~nfs4_bits;
947 } else {
948 /* add deny bits when suitable */
949 if (!posix_bit)
950 aceMask |= nfs4_bits;
951 else
952 aceMask &= ~nfs4_bits;
953 } /* other ace types are unexpected */
954
955 posix_mask <<= 1;
956 }
957
958 return aceMask;
959 }
960
961 static int gpfsacl_emu_chmod(const char *path, mode_t mode)
962 {
963 SMB4ACL_T *pacl = NULL;
964 int result;
965 bool haveAllowEntry[SMB_ACE4_WHO_EVERYONE + 1] = {False, False, False, False};
966 int i;
967 files_struct fake_fsp; /* TODO: rationalize parametrization */
968 SMB4ACE_T *smbace;
969 NTSTATUS status;
970
971 DEBUG(10, ("gpfsacl_emu_chmod invoked for %s mode %o\n", path, mode));
972
973 result = gpfs_get_nfs4_acl(path, &pacl);
974 if (result)
975 return result;
976
977 if (mode & ~(S_IRWXU | S_IRWXG | S_IRWXO)) {
978 DEBUG(2, ("WARNING: cutting extra mode bits %o on %s\n", mode, path));
979 }
980
981 for (smbace=smb_first_ace4(pacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
982 SMB_ACE4PROP_T *ace = smb_get_ace4(smbace);
983 uint32_t specid = ace->who.special_id;
984
985 if (ace->flags&SMB_ACE4_ID_SPECIAL &&
986 ace->aceType<=SMB_ACE4_ACCESS_DENIED_ACE_TYPE &&
987 specid <= SMB_ACE4_WHO_EVERYONE) {
988
989 uint32_t newMask;
990
991 if (ace->aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE)
992 haveAllowEntry[specid] = True;
993
994 /* mode >> 6 for @owner, mode >> 3 for @group,
995 * mode >> 0 for @everyone */
996 newMask = gpfsacl_mask_filter(ace->aceType, ace->aceMask,
997 mode >> ((SMB_ACE4_WHO_EVERYONE - specid) * 3));
998 if (ace->aceMask!=newMask) {
999 DEBUG(10, ("ace changed for %s (%o -> %o) id=%d\n",
1000 path, ace->aceMask, newMask, specid));
1001 }
1002 ace->aceMask = newMask;
1003 }
1004 }
1005
1006 /* make sure we have at least ALLOW entries
1007 * for all the 3 special ids (@EVERYONE, @OWNER, @GROUP)
1008 * - if necessary
1009 */
1010 for(i = SMB_ACE4_WHO_OWNER; i<=SMB_ACE4_WHO_EVERYONE; i++) {
1011 SMB_ACE4PROP_T ace;
1012
1013 if (haveAllowEntry[i]==True)
1014 continue;
1015
1016 ZERO_STRUCT(ace);
1017 ace.aceType = SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE;
1018 ace.flags |= SMB_ACE4_ID_SPECIAL;
1019 ace.who.special_id = i;
1020
1021 if (i==SMB_ACE4_WHO_GROUP) /* not sure it's necessary... */
1022 ace.aceFlags |= SMB_ACE4_IDENTIFIER_GROUP;
1023
1024 ace.aceMask = gpfsacl_mask_filter(ace.aceType, ace.aceMask,
1025 mode >> ((SMB_ACE4_WHO_EVERYONE - i) * 3));
1026
1027 /* don't add unnecessary aces */
1028 if (!ace.aceMask)
1029 continue;
1030
1031 /* we add it to the END - as windows expects allow aces */
1032 smb_add_ace4(pacl, &ace);
1033 DEBUG(10, ("Added ALLOW ace for %s, mode=%o, id=%d, aceMask=%x\n",
1034 path, mode, i, ace.aceMask));
1035 }
1036
1037 /* don't add complementary DENY ACEs here */
1038 ZERO_STRUCT(fake_fsp);
1039 status = create_synthetic_smb_fname(talloc_tos(), path, NULL, NULL,
1040 &fake_fsp.fsp_name);
1041 if (!NT_STATUS_IS_OK(status)) {
1042 errno = map_errno_from_nt_status(status);
1043 return -1;
1044 }
1045 /* put the acl */
1046 if (gpfsacl_process_smbacl(&fake_fsp, pacl) == False) {
1047 TALLOC_FREE(fake_fsp.fsp_name);
1048 return -1;
1049 }
1050
1051 TALLOC_FREE(fake_fsp.fsp_name);
1052 return 0; /* ok for [f]chmod */
1053 }
1054
1055 static int vfs_gpfs_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
1056 {
1057 struct smb_filename *smb_fname_cpath;
1058 int rc;
1059 NTSTATUS status;
1060
1061 status = create_synthetic_smb_fname(
1062 talloc_tos(), path, NULL, NULL, &smb_fname_cpath);
1063
1064 if (SMB_VFS_NEXT_STAT(handle, smb_fname_cpath) != 0) {
1065 return -1;
1066 }
1067
1068 /* avoid chmod() if possible, to preserve acls */
1069 if ((smb_fname_cpath->st.st_ex_mode & ~S_IFMT) == mode) {
1070 return 0;
1071 }
1072
1073 rc = gpfsacl_emu_chmod(path, mode);
1074 if (rc == 1)
1075 return SMB_VFS_NEXT_CHMOD(handle, path, mode);
1076 return rc;
1077 }
1078
1079 static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
1080 {
1081 SMB_STRUCT_STAT st;
1082 int rc;
1083
1084 if (SMB_VFS_NEXT_FSTAT(handle, fsp, &st) != 0) {
1085 return -1;
1086 }
1087
1088 /* avoid chmod() if possible, to preserve acls */
1089 if ((st.st_ex_mode & ~S_IFMT) == mode) {
1090 return 0;
1091 }
1092
1093 rc = gpfsacl_emu_chmod(fsp->fsp_name->base_name, mode);
1094 if (rc == 1)
1095 return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
1096 return rc;
1097 }
1098
1099 static int gpfs_set_xattr(struct vfs_handle_struct *handle, const char *path,
1100 const char *name, const void *value, size_t size, int flags){
1101 struct xattr_DOSATTRIB dosattrib;
1102 enum ndr_err_code ndr_err;
1103 DATA_BLOB blob;
1104 const char *attrstr = value;
1105 unsigned int dosmode=0;
1106 struct gpfs_winattr attrs;
1107 int ret = 0;
1108 struct gpfs_config_data *config;
1109
1110 SMB_VFS_HANDLE_GET_DATA(handle, config,
1111 struct gpfs_config_data,
1112 return -1);
1113
1114 if (!config->winattr) {
1115 DEBUG(10, ("gpfs_set_xattr:name is %s -> next\n",name));
1116 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1117 }
1118
1119 DEBUG(10, ("gpfs_set_xattr: %s \n",path));
1120
1121 /* Only handle DOS Attributes */
1122 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1123 DEBUG(5, ("gpfs_set_xattr:name is %s\n",name));
1124 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1125 }
1126
1127 blob.data = (uint8_t *)attrstr;
1128 blob.length = size;
1129
1130 ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), &dosattrib,
1131 (ndr_pull_flags_fn_t)ndr_pull_xattr_DOSATTRIB);
1132
1133 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1134 DEBUG(1, ("gpfs_set_xattr: bad ndr decode "
1135 "from EA on file %s: Error = %s\n",
1136 path, ndr_errstr(ndr_err)));
1137 return false;
1138 }
1139
1140 if (dosattrib.version != 3) {
1141 DEBUG(1, ("gpfs_set_xattr: expected dosattrib version 3, got "
1142 "%d\n", (int)dosattrib.version));
1143 return false;
1144 }
1145 if (!(dosattrib.info.info3.valid_flags & XATTR_DOSINFO_ATTRIB)) {
1146 DEBUG(10, ("gpfs_set_xattr: XATTR_DOSINFO_ATTRIB not "
1147 "valid, ignoring\n"));
1148 return true;
1149 }
1150
1151 dosmode = dosattrib.info.info3.attrib;
1152
1153 attrs.winAttrs = 0;
1154 /*Just map RD_ONLY, ARCHIVE, SYSTEM HIDDEN and SPARSE. Ignore the others*/
1155 if (dosmode & FILE_ATTRIBUTE_ARCHIVE){
1156 attrs.winAttrs |= GPFS_WINATTR_ARCHIVE;
1157 }
1158 if (dosmode & FILE_ATTRIBUTE_HIDDEN){
1159 attrs.winAttrs |= GPFS_WINATTR_HIDDEN;
1160 }
1161 if (dosmode & FILE_ATTRIBUTE_SYSTEM){
1162 attrs.winAttrs |= GPFS_WINATTR_SYSTEM;
1163 }
1164 if (dosmode & FILE_ATTRIBUTE_READONLY){
1165 attrs.winAttrs |= GPFS_WINATTR_READONLY;
1166 }
1167 if (dosmode & FILE_ATTRIBUTE_SPARSE) {
1168 attrs.winAttrs |= GPFS_WINATTR_SPARSE_FILE;
1169 }
1170
1171
1172 ret = set_gpfs_winattrs(discard_const_p(char, path),
1173 GPFS_WINATTR_SET_ATTRS, &attrs);
1174 if ( ret == -1){
1175 if (errno == ENOSYS) {
1176 return SMB_VFS_NEXT_SETXATTR(handle, path, name, value,
1177 size, flags);
1178 }
1179
1180 DEBUG(1, ("gpfs_set_xattr:Set GPFS attributes failed %d\n",ret));
1181 return -1;
1182 }
1183
1184 DEBUG(10, ("gpfs_set_xattr:Set attributes: 0x%x\n",attrs.winAttrs));
1185 return 0;
1186 }
1187
1188 static ssize_t gpfs_get_xattr(struct vfs_handle_struct *handle, const char *path,
1189 const char *name, void *value, size_t size){
1190 char *attrstr = value;
1191 unsigned int dosmode = 0;
1192 struct gpfs_winattr attrs;
1193 int ret = 0;
1194 struct gpfs_config_data *config;
1195
1196 SMB_VFS_HANDLE_GET_DATA(handle, config,
1197 struct gpfs_config_data,
1198 return -1);
1199
1200 if (!config->winattr) {
1201 DEBUG(10, ("gpfs_get_xattr:name is %s -> next\n",name));
1202 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1203 }
1204
1205 DEBUG(10, ("gpfs_get_xattr: %s \n",path));
1206
1207 /* Only handle DOS Attributes */
1208 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1209 DEBUG(5, ("gpfs_get_xattr:name is %s\n",name));
1210 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1211 }
1212
1213 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1214 if ( ret == -1){
1215 if (errno == ENOSYS) {
1216 return SMB_VFS_NEXT_GETXATTR(handle, path, name, value,
1217 size);
1218 }
1219
1220 DEBUG(1, ("gpfs_get_xattr: Get GPFS attributes failed: "
1221 "%d (%s)\n", ret, strerror(errno)));
1222 return -1;
1223 }
1224
1225 DEBUG(10, ("gpfs_get_xattr:Got attributes: 0x%x\n",attrs.winAttrs));
1226
1227 /*Just map RD_ONLY, ARCHIVE, SYSTEM, HIDDEN and SPARSE. Ignore the others*/
1228 if (attrs.winAttrs & GPFS_WINATTR_ARCHIVE){
1229 dosmode |= FILE_ATTRIBUTE_ARCHIVE;
1230 }
1231 if (attrs.winAttrs & GPFS_WINATTR_HIDDEN){
1232 dosmode |= FILE_ATTRIBUTE_HIDDEN;
1233 }
1234 if (attrs.winAttrs & GPFS_WINATTR_SYSTEM){
1235 dosmode |= FILE_ATTRIBUTE_SYSTEM;
1236 }
1237 if (attrs.winAttrs & GPFS_WINATTR_READONLY){
1238 dosmode |= FILE_ATTRIBUTE_READONLY;
1239 }
1240 if (attrs.winAttrs & GPFS_WINATTR_SPARSE_FILE) {
1241 dosmode |= FILE_ATTRIBUTE_SPARSE;
1242 }
1243
1244 snprintf(attrstr, size, "0x%2.2x",
1245 (unsigned int)(dosmode & SAMBA_ATTRIBUTES_MASK));
1246 DEBUG(10, ("gpfs_get_xattr: returning %s\n",attrstr));
1247 return 4;
1248 }
1249
1250 static int vfs_gpfs_stat(struct vfs_handle_struct *handle,
1251 struct smb_filename *smb_fname)
1252 {
1253 struct gpfs_winattr attrs;
1254 char *fname = NULL;
1255 NTSTATUS status;
1256 int ret;
1257 struct gpfs_config_data *config;
1258
1259 SMB_VFS_HANDLE_GET_DATA(handle, config,
1260 struct gpfs_config_data,
1261 return -1);
1262
1263 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
1264 if (ret == -1) {
1265 return -1;
1266 }
1267
1268 if (!config->winattr) {
1269 return 0;
1270 }
1271
1272 status = get_full_smb_filename(talloc_tos(), smb_fname, &fname);
1273 if (!NT_STATUS_IS_OK(status)) {
1274 errno = map_errno_from_nt_status(status);
1275 return -1;
1276 }
1277 ret = get_gpfs_winattrs(discard_const_p(char, fname), &attrs);
1278 TALLOC_FREE(fname);
1279 if (ret == 0) {
1280 smb_fname->st.st_ex_calculated_birthtime = false;
1281 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1282 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1283 smb_fname->st.vfs_private = attrs.winAttrs;
1284 }
1285 return 0;
1286 }
1287
1288 static int vfs_gpfs_fstat(struct vfs_handle_struct *handle,
1289 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1290 {
1291 struct gpfs_winattr attrs;
1292 int ret;
1293 struct gpfs_config_data *config;
1294
1295 SMB_VFS_HANDLE_GET_DATA(handle, config,
1296 struct gpfs_config_data,
1297 return -1);
1298
1299 ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
1300 if (ret == -1) {
1301 return -1;
1302 }
1303 if ((fsp->fh == NULL) || (fsp->fh->fd == -1)) {
1304 return 0;
1305 }
1306 if (!config->winattr) {
1307 return 0;
1308 }
1309
1310 ret = smbd_fget_gpfs_winattrs(fsp->fh->fd, &attrs);
1311 if (ret == 0) {
1312 sbuf->st_ex_calculated_birthtime = false;
1313 sbuf->st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1314 sbuf->st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1315 }
1316 return 0;
1317 }
1318
1319 static int vfs_gpfs_lstat(struct vfs_handle_struct *handle,
1320 struct smb_filename *smb_fname)
1321 {
1322 struct gpfs_winattr attrs;
1323 char *path = NULL;
1324 NTSTATUS status;
1325 int ret;
1326 struct gpfs_config_data *config;
1327
1328 SMB_VFS_HANDLE_GET_DATA(handle, config,
1329 struct gpfs_config_data,
1330 return -1);
1331
1332 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1333 if (ret == -1) {
1334 return -1;
1335 }
1336 if (!config->winattr) {
1337 return 0;
1338 }
1339
1340 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1341 if (!NT_STATUS_IS_OK(status)) {
1342 errno = map_errno_from_nt_status(status);
1343 return -1;
1344 }
1345 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1346 TALLOC_FREE(path);
1347 if (ret == 0) {
1348 smb_fname->st.st_ex_calculated_birthtime = false;
1349 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1350 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1351 smb_fname->st.vfs_private = attrs.winAttrs;
1352 }
1353 return 0;
1354 }
1355
1356 static int vfs_gpfs_ntimes(struct vfs_handle_struct *handle,
1357 const struct smb_filename *smb_fname,
1358 struct smb_file_time *ft)
1359 {
1360
1361 struct gpfs_winattr attrs;
1362 int ret;
1363 char *path = NULL;
1364 NTSTATUS status;
1365 struct gpfs_config_data *config;
1366
1367 SMB_VFS_HANDLE_GET_DATA(handle, config,
1368 struct gpfs_config_data,
1369 return -1);
1370
1371 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1372 if(ret == -1){
1373 /* don't complain if access was denied */
1374 if (errno != EPERM && errno != EACCES) {
1375 DEBUG(1,("vfs_gpfs_ntimes: SMB_VFS_NEXT_NTIMES failed:"
1376 "%s", strerror(errno)));
1377 }
1378 return -1;
1379 }
1380
1381 if(null_timespec(ft->create_time)){
1382 DEBUG(10,("vfs_gpfs_ntimes:Create Time is NULL\n"));
1383 return 0;
1384 }
1385
1386 if (!config->winattr) {
1387 return 0;
1388 }
1389
1390 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1391 if (!NT_STATUS_IS_OK(status)) {
1392 errno = map_errno_from_nt_status(status);
1393 return -1;
1394 }
1395
1396 attrs.winAttrs = 0;
1397 attrs.creationTime.tv_sec = ft->create_time.tv_sec;
1398 attrs.creationTime.tv_nsec = ft->create_time.tv_nsec;
1399
1400 ret = set_gpfs_winattrs(discard_const_p(char, path),
1401 GPFS_WINATTR_SET_CREATION_TIME, &attrs);
1402 if(ret == -1 && errno != ENOSYS){
1403 DEBUG(1,("vfs_gpfs_ntimes: set GPFS ntimes failed %d\n",ret));
1404 return -1;
1405 }
1406 return 0;
1407
1408 }
1409
1410 static int vfs_gpfs_fallocate(struct vfs_handle_struct *handle,
1411 struct files_struct *fsp, enum vfs_fallocate_mode mode,
1412 off_t offset, off_t len)
1413 {
1414 int ret;
1415 struct gpfs_config_data *config;
1416
1417 SMB_VFS_HANDLE_GET_DATA(handle, config,
1418 struct gpfs_config_data,
1419 return -1);
1420
1421 if (!config->prealloc) {
1422 /* you should better not run fallocate() on GPFS at all */
1423 errno = ENOTSUP;
1424 return -1;
1425 }
1426
1427 if (mode == VFS_FALLOCATE_KEEP_SIZE) {
1428 DEBUG(10, ("Unsupported VFS_FALLOCATE_KEEP_SIZE\n"));
1429 errno = ENOTSUP;
1430 return -1;
1431 }
1432
1433 ret = smbd_gpfs_prealloc(fsp->fh->fd, offset, len);
1434
1435 if (ret == -1 && errno != ENOSYS) {
1436 DEBUG(0, ("GPFS prealloc failed: %s\n", strerror(errno)));
1437 } else if (ret == -1 && errno == ENOSYS) {
1438 DEBUG(10, ("GPFS prealloc not supported.\n"));
1439 } else {
1440 DEBUG(10, ("GPFS prealloc succeeded.\n"));
1441 }
1442
1443 return ret;
1444 }
1445
1446 static int vfs_gpfs_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1447 off_t len)
1448 {
1449 int result;
1450 struct gpfs_config_data *config;
1451
1452 SMB_VFS_HANDLE_GET_DATA(handle, config,
1453 struct gpfs_config_data,
1454 return -1);
1455
1456 if (!config->ftruncate) {
1457 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1458 }
1459
1460 result = smbd_gpfs_ftruncate(fsp->fh->fd, len);
1461 if ((result == -1) && (errno == ENOSYS)) {
1462 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1463 }
1464 return result;
1465 }
1466
1467 static bool vfs_gpfs_is_offline(struct vfs_handle_struct *handle,
1468 const struct smb_filename *fname,
1469 SMB_STRUCT_STAT *sbuf)
1470 {
1471 struct gpfs_winattr attrs;
1472 char *path = NULL;
1473 NTSTATUS status;
1474 struct gpfs_config_data *config;
1475
1476 SMB_VFS_HANDLE_GET_DATA(handle, config,
1477 struct gpfs_config_data,
1478 return -1);
1479
1480 if (!config->winattr) {
1481 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1482 }
1483
1484 status = get_full_smb_filename(talloc_tos(), fname, &path);
1485 if (!NT_STATUS_IS_OK(status)) {
1486 errno = map_errno_from_nt_status(status);
1487 return -1;
1488 }
1489
1490 if (VALID_STAT(*sbuf)) {
1491 attrs.winAttrs = sbuf->vfs_private;
1492 } else {
1493 int ret;
1494 ret = get_gpfs_winattrs(path, &attrs);
1495
1496 if (ret == -1) {
1497 TALLOC_FREE(path);
1498 return false;
1499 }
1500 }
1501 if ((attrs.winAttrs & GPFS_WINATTR_OFFLINE) != 0) {
1502 DEBUG(10, ("%s is offline\n", path));
1503 TALLOC_FREE(path);
1504 return true;
1505 }
1506 DEBUG(10, ("%s is online\n", path));
1507 TALLOC_FREE(path);
1508 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1509 }
1510
1511 static bool vfs_gpfs_aio_force(struct vfs_handle_struct *handle,
1512 struct files_struct *fsp)
1513 {
1514 return vfs_gpfs_is_offline(handle, fsp->fsp_name, &fsp->fsp_name->st);
1515 }
1516
1517 static ssize_t vfs_gpfs_sendfile(vfs_handle_struct *handle, int tofd,
1518 files_struct *fsp, const DATA_BLOB *hdr,
1519 off_t offset, size_t n)
1520 {
1521 if ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0) {
1522 errno = ENOSYS;
1523 return -1;
1524 }
1525 return SMB_VFS_NEXT_SENDFILE(handle, tofd, fsp, hdr, offset, n);
1526 }
1527
1528 static int vfs_gpfs_connect(struct vfs_handle_struct *handle,
1529 const char *service, const char *user)
1530 {
1531 struct gpfs_config_data *config;
1532 int ret;
1533
1534 smbd_gpfs_lib_init();
1535
1536 ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
1537
1538 if (ret < 0) {
1539 return ret;
1540 }
1541
1542 config = talloc_zero(handle->conn, struct gpfs_config_data);
1543 if (!config) {
1544 SMB_VFS_NEXT_DISCONNECT(handle);
1545 DEBUG(0, ("talloc_zero() failed\n"));
1546 return -1;
1547 }
1548
1549 config->sharemodes = lp_parm_bool(SNUM(handle->conn), "gpfs",
1550 "sharemodes", true);
1551
1552 config->leases = lp_parm_bool(SNUM(handle->conn), "gpfs",
1553 "leases", true);
1554
1555 config->hsm = lp_parm_bool(SNUM(handle->conn), "gpfs",
1556 "hsm", false);
1557
1558 config->syncio = lp_parm_bool(SNUM(handle->conn), "gpfs",
1559 "syncio", false);
1560
1561 config->winattr = lp_parm_bool(SNUM(handle->conn), "gpfs",
1562 "winattr", false);
1563
1564 config->ftruncate = lp_parm_bool(SNUM(handle->conn), "gpfs",
1565 "ftruncate", true);
1566
1567 config->getrealfilename = lp_parm_bool(SNUM(handle->conn), "gpfs",
1568 "getrealfilename", true);
1569
1570 config->dfreequota = lp_parm_bool(SNUM(handle->conn), "gpfs",
1571 "dfreequota", false);
1572
1573 config->prealloc = lp_parm_bool(SNUM(handle->conn), "gpfs",
1574 "prealloc", true);
1575
1576 config->acl = lp_parm_bool(SNUM(handle->conn), "gpfs", "acl", true);
1577
1578 SMB_VFS_HANDLE_SET_DATA(handle, config,
1579 NULL, struct gpfs_config_data,
1580 return -1);
1581
1582 if (config->leases) {
1583 /*
1584 * GPFS lease code is based on kernel oplock code
1585 * so make sure it is turned on
1586 */
1587 if (!lp_kernel_oplocks(SNUM(handle->conn))) {
1588 DEBUG(5, ("Enabling kernel oplocks for "
1589 "gpfs:leases to work\n"));
1590 lp_do_parameter(SNUM(handle->conn), "kernel oplocks",
1591 "true");
1592 }
1593
1594 /*
1595 * as the kernel does not properly support Level II oplocks
1596 * and GPFS leases code is based on kernel infrastructure, we
1597 * need to turn off Level II oplocks if gpfs:leases is enabled
1598 */
1599 if (lp_level2_oplocks(SNUM(handle->conn))) {
1600 DEBUG(5, ("gpfs:leases are enabled, disabling "
1601 "Level II oplocks\n"));
1602 lp_do_parameter(SNUM(handle->conn), "level2 oplocks",
1603 "false");
1604 }
1605 }
1606
1607 return 0;
1608 }
1609
1610 static int vfs_gpfs_get_quotas(const char *path, uid_t uid, gid_t gid,
1611 int *fset_id,
1612 struct gpfs_quotaInfo *qi_user,
1613 struct gpfs_quotaInfo *qi_group,
1614 struct gpfs_quotaInfo *qi_fset)
1615 {
1616 int err;
1617 char *dir_path;
1618 bool b;
1619
1620 /*
1621 * We want to always use the directory to get the fileset id,
1622 * because files might have a share mode. We also do not want
1623 * to get the parent directory when there is already a
1624 * directory to avoid stepping in a different fileset. The
1625 * path passed here is currently either "." or a filename, so
1626 * this is ok. The proper solution would be having a way to
1627 * query the fileset id without opening the file.
1628 */
1629 b = parent_dirname(talloc_tos(), path, &dir_path, NULL);
1630 if (!b) {
1631 errno = ENOMEM;
1632 return -1;
1633 }
1634
1635 DEBUG(10, ("path %s, directory %s\n", path, dir_path));
1636
1637 err = get_gpfs_fset_id(dir_path, fset_id);
1638 if (err) {
1639 DEBUG(0, ("Get fset id failed path %s, dir %s, errno %d.\n",
1640 path, dir_path, errno));
1641 return err;
1642 }
1643
1644 err = get_gpfs_quota(path, GPFS_USRQUOTA, uid, qi_user);
1645 if (err) {
1646 return err;
1647 }
1648
1649 err = get_gpfs_quota(path, GPFS_GRPQUOTA, gid, qi_group);
1650 if (err) {
1651 return err;
1652 }
1653
1654 err = get_gpfs_quota(path, GPFS_FILESETQUOTA, *fset_id, qi_fset);
1655 if (err) {
1656 return err;
1657 }
1658
1659 return 0;
1660 }
1661
1662 static void vfs_gpfs_disk_free_quota(struct gpfs_quotaInfo qi, time_t cur_time,
1663 uint64_t *dfree, uint64_t *dsize)
1664 {
1665 uint64_t usage, limit;
1666
1667 /*
1668 * The quota reporting is done in units of 1024 byte blocks, but
1669 * sys_fsusage uses units of 512 byte blocks, adjust the block number
1670 * accordingly. Also filter possibly negative usage counts from gpfs.
1671 */
1672 usage = qi.blockUsage < 0 ? 0 : (uint64_t)qi.blockUsage * 2;
1673 limit = (uint64_t)qi.blockHardLimit * 2;
1674
1675 /*
1676 * When the grace time for the exceeded soft block quota has been
1677 * exceeded, the soft block quota becomes an additional hard limit.
1678 */
1679 if (qi.blockSoftLimit &&
1680 qi.blockGraceTime && cur_time > qi.blockGraceTime) {
1681 /* report disk as full */
1682 *dfree = 0;
1683 *dsize = MIN(*dsize, usage);
1684 }
1685
1686 if (!qi.blockHardLimit)
1687 return;
1688
1689 if (usage >= limit) {
1690 /* report disk as full */
1691 *dfree = 0;
1692 *dsize = MIN(*dsize, usage);
1693
1694 } else {
1695 /* limit has not been reached, determine "free space" */
1696 *dfree = MIN(*dfree, limit - usage);
1697 *dsize = MIN(*dsize, limit);
1698 }
1699 }
1700
1701 static uint64_t vfs_gpfs_disk_free(vfs_handle_struct *handle, const char *path,
1702 bool small_query, uint64_t *bsize,
1703 uint64_t *dfree, uint64_t *dsize)
1704 {
1705 struct security_unix_token *utok;
1706 struct gpfs_quotaInfo qi_user, qi_group, qi_fset;
1707 struct gpfs_config_data *config;
1708 int err, fset_id;
1709 time_t cur_time;
1710
1711 SMB_VFS_HANDLE_GET_DATA(handle, config, struct gpfs_config_data,
1712 return (uint64_t)-1);
1713 if (!config->dfreequota) {
1714 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1715 bsize, dfree, dsize);
1716 }
1717
1718 err = sys_fsusage(path, dfree, dsize);
1719 if (err) {
1720 DEBUG (0, ("Could not get fs usage, errno %d\n", errno));
1721 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1722 bsize, dfree, dsize);
1723 }
1724
1725 /* sys_fsusage returns units of 512 bytes */
1726 *bsize = 512;
1727
1728 DEBUG(10, ("fs dfree %llu, dsize %llu\n",
1729 (unsigned long long)*dfree, (unsigned long long)*dsize));
1730
1731 utok = handle->conn->session_info->unix_token;
1732 err = vfs_gpfs_get_quotas(path, utok->uid, utok->gid, &fset_id,
1733 &qi_user, &qi_group, &qi_fset);
1734 if (err) {
1735 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1736 bsize, dfree, dsize);
1737 }
1738
1739 cur_time = time(NULL);
1740
1741 /* Adjust free space and size according to quota limits. */
1742 vfs_gpfs_disk_free_quota(qi_user, cur_time, dfree, dsize);
1743 vfs_gpfs_disk_free_quota(qi_group, cur_time, dfree, dsize);
1744
1745 /* Id 0 indicates the default quota, not an actual quota */
1746 if (fset_id != 0) {
1747 vfs_gpfs_disk_free_quota(qi_fset, cur_time, dfree, dsize);
1748 }
1749
1750 disk_norm(small_query, bsize, dfree, dsize);
1751 return *dfree;
1752 }
1753
1754 static uint32_t vfs_gpfs_capabilities(struct vfs_handle_struct *handle,
1755 enum timestamp_set_resolution *p_ts_res)
1756 {
1757 struct gpfs_config_data *config;
1758 uint32_t next;
1759
1760 next = SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
1761
1762 SMB_VFS_HANDLE_GET_DATA(handle, config,
1763 struct gpfs_config_data,
1764 return next);
1765
1766 if (config->hsm) {
1767 next |= FILE_SUPPORTS_REMOTE_STORAGE;
1768 }
1769 return next;
1770 }
1771
1772 static int vfs_gpfs_open(struct vfs_handle_struct *handle,
1773 struct smb_filename *smb_fname, files_struct *fsp,
1774 int flags, mode_t mode)
1775 {
1776 struct gpfs_config_data *config;
1777
1778 SMB_VFS_HANDLE_GET_DATA(handle, config,
1779 struct gpfs_config_data,
1780 return -1);
1781
1782 if (config->syncio) {
1783 flags |= O_SYNC;
1784 }
1785 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1786 }
1787
1788 static ssize_t vfs_gpfs_pread(vfs_handle_struct *handle, files_struct *fsp,
1789 void *data, size_t n, off_t offset)
1790 {
1791 ssize_t ret;
1792
1793 ret = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
1794
1795 DEBUG(10, ("vfs_private = %x\n",
1796 (unsigned int)fsp->fsp_name->st.vfs_private));
1797
1798 if ((ret != -1) &&
1799 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1800 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1801 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
1802 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1803 fsp->fsp_name->base_name);
1804 }
1805
1806 return ret;
1807 }
1808
1809 struct vfs_gpfs_pread_state {
1810 struct files_struct *fsp;
1811 ssize_t ret;
1812 int err;
1813 };
1814
1815 static void vfs_gpfs_pread_done(struct tevent_req *subreq);
1816
1817 static struct tevent_req *vfs_gpfs_pread_send(struct vfs_handle_struct *handle,
1818 TALLOC_CTX *mem_ctx,
1819 struct tevent_context *ev,
1820 struct files_struct *fsp,
1821 void *data, size_t n,
1822 off_t offset)
1823 {
1824 struct tevent_req *req, *subreq;
1825 struct vfs_gpfs_pread_state *state;
1826
1827 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pread_state);
1828 if (req == NULL) {
1829 return NULL;
1830 }
1831 state->fsp = fsp;
1832 subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
1833 n, offset);
1834 if (tevent_req_nomem(subreq, req)) {
1835 return tevent_req_post(req, ev);
1836 }
1837 tevent_req_set_callback(subreq, vfs_gpfs_pread_done, req);
1838 return req;
1839 }
1840
1841 static void vfs_gpfs_pread_done(struct tevent_req *subreq)
1842 {
1843 struct tevent_req *req = tevent_req_callback_data(
1844 subreq, struct tevent_req);
1845 struct vfs_gpfs_pread_state *state = tevent_req_data(
1846 req, struct vfs_gpfs_pread_state);
1847
1848 state->ret = SMB_VFS_PREAD_RECV(subreq, &state->err);
1849 TALLOC_FREE(subreq);
1850 tevent_req_done(req);
1851 }
1852
1853 static ssize_t vfs_gpfs_pread_recv(struct tevent_req *req, int *err)
1854 {
1855 struct vfs_gpfs_pread_state *state = tevent_req_data(
1856 req, struct vfs_gpfs_pread_state);
1857 struct files_struct *fsp = state->fsp;
1858
1859 if (tevent_req_is_unix_error(req, err)) {
1860 return -1;
1861 }
1862 *err = state->err;
1863
1864 DEBUG(10, ("vfs_private = %x\n",
1865 (unsigned int)fsp->fsp_name->st.vfs_private));
1866
1867 if ((state->ret != -1) &&
1868 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1869 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1870 DEBUG(10, ("sending notify\n"));
1871 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
1872 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1873 fsp->fsp_name->base_name);
1874 }
1875
1876 return state->ret;
1877 }
1878
1879 static ssize_t vfs_gpfs_pwrite(vfs_handle_struct *handle, files_struct *fsp,
1880 const void *data, size_t n, off_t offset)
1881 {
1882 ssize_t ret;
1883
1884 ret = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
1885
1886 DEBUG(10, ("vfs_private = %x\n",
1887 (unsigned int)fsp->fsp_name->st.vfs_private));
1888
1889 if ((ret != -1) &&
1890 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1891 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1892 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
1893 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1894 fsp->fsp_name->base_name);
1895 }
1896
1897 return ret;
1898 }
1899
1900 struct vfs_gpfs_pwrite_state {
1901 struct files_struct *fsp;
1902 ssize_t ret;
1903 int err;
1904 };
1905
1906 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq);
1907
1908 static struct tevent_req *vfs_gpfs_pwrite_send(
1909 struct vfs_handle_struct *handle,
1910 TALLOC_CTX *mem_ctx,
1911 struct tevent_context *ev,
1912 struct files_struct *fsp,
1913 const void *data, size_t n,
1914 off_t offset)
1915 {
1916 struct tevent_req *req, *subreq;
1917 struct vfs_gpfs_pwrite_state *state;
1918
1919 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pwrite_state);
1920 if (req == NULL) {
1921 return NULL;
1922 }
1923 state->fsp = fsp;
1924 subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
1925 n, offset);
1926 if (tevent_req_nomem(subreq, req)) {
1927 return tevent_req_post(req, ev);
1928 }
1929 tevent_req_set_callback(subreq, vfs_gpfs_pwrite_done, req);
1930 return req;
1931 }
1932
1933 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq)
1934 {
1935 struct tevent_req *req = tevent_req_callback_data(
1936 subreq, struct tevent_req);
1937 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
1938 req, struct vfs_gpfs_pwrite_state);
1939
1940 state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->err);
1941 TALLOC_FREE(subreq);
1942 tevent_req_done(req);
1943 }
1944
1945 static ssize_t vfs_gpfs_pwrite_recv(struct tevent_req *req, int *err)
1946 {
1947 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
1948 req, struct vfs_gpfs_pwrite_state);
1949 struct files_struct *fsp = state->fsp;
1950
1951 if (tevent_req_is_unix_error(req, err)) {
1952 return -1;
1953 }
1954 *err = state->err;
1955
1956 DEBUG(10, ("vfs_private = %x\n",
1957 (unsigned int)fsp->fsp_name->st.vfs_private));
1958
1959 if ((state->ret != -1) &&
1960 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1961 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1962 DEBUG(10, ("sending notify\n"));
1963 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
1964 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1965 fsp->fsp_name->base_name);
1966 }
1967
1968 return state->ret;
1969 }
1970
1971
1972 static struct vfs_fn_pointers vfs_gpfs_fns = {
1973 .connect_fn = vfs_gpfs_connect,
1974 .disk_free_fn = vfs_gpfs_disk_free,
1975 .fs_capabilities_fn = vfs_gpfs_capabilities,
1976 .kernel_flock_fn = vfs_gpfs_kernel_flock,
1977 .linux_setlease_fn = vfs_gpfs_setlease,
1978 .get_real_filename_fn = vfs_gpfs_get_real_filename,
1979 .fget_nt_acl_fn = gpfsacl_fget_nt_acl,
1980 .get_nt_acl_fn = gpfsacl_get_nt_acl,
1981 .fset_nt_acl_fn = gpfsacl_fset_nt_acl,
1982 .sys_acl_get_file_fn = gpfsacl_sys_acl_get_file,
1983 .sys_acl_get_fd_fn = gpfsacl_sys_acl_get_fd,
1984 .sys_acl_blob_get_file_fn = gpfsacl_sys_acl_blob_get_file,
1985 .sys_acl_blob_get_fd_fn = gpfsacl_sys_acl_blob_get_fd,
1986 .sys_acl_set_file_fn = gpfsacl_sys_acl_set_file,
1987 .sys_acl_set_fd_fn = gpfsacl_sys_acl_set_fd,
1988 .sys_acl_delete_def_file_fn = gpfsacl_sys_acl_delete_def_file,
1989 .chmod_fn = vfs_gpfs_chmod,
1990 .fchmod_fn = vfs_gpfs_fchmod,
1991 .close_fn = vfs_gpfs_close,
1992 .setxattr_fn = gpfs_set_xattr,
1993 .getxattr_fn = gpfs_get_xattr,
1994 .stat_fn = vfs_gpfs_stat,
1995 .fstat_fn = vfs_gpfs_fstat,
1996 .lstat_fn = vfs_gpfs_lstat,
1997 .ntimes_fn = vfs_gpfs_ntimes,
1998 .is_offline_fn = vfs_gpfs_is_offline,
1999 .aio_force_fn = vfs_gpfs_aio_force,
2000 .sendfile_fn = vfs_gpfs_sendfile,
2001 .fallocate_fn = vfs_gpfs_fallocate,
2002 .open_fn = vfs_gpfs_open,
2003 .pread_fn = vfs_gpfs_pread,
2004 .pread_send_fn = vfs_gpfs_pread_send,
2005 .pread_recv_fn = vfs_gpfs_pread_recv,
2006 .pwrite_fn = vfs_gpfs_pwrite,
2007 .pwrite_send_fn = vfs_gpfs_pwrite_send,
2008 .pwrite_recv_fn = vfs_gpfs_pwrite_recv,
2009 .ftruncate_fn = vfs_gpfs_ftruncate
2010 };
2011
2012 NTSTATUS vfs_gpfs_init(void);
2013 NTSTATUS vfs_gpfs_init(void)
2014 {
2015 init_gpfs();
2016
2017 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
2018 &vfs_gpfs_fns);
2019 }
stuff from bjacke