?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
vfs_gpfs: move failure label before END_PROFILE
[Samba.git] / source3 / modules / vfs_gpfs.c
blob11e6506a8e7eb5721ee3dd25e08e5f4a43168cf3
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 #include "modules/non_posix_acls.h"
29
30 #undef DBGC_CLASS
31 #define DBGC_CLASS DBGC_VFS
32
33 #include <gpfs_gpl.h>
34 #include "nfs4_acls.h"
35 #include "vfs_gpfs.h"
36 #include "system/filesys.h"
37 #include "auth.h"
38 #include "lib/util/tevent_unix.h"
39
40 struct gpfs_config_data {
41 bool sharemodes;
42 bool leases;
43 bool hsm;
44 bool syncio;
45 bool winattr;
46 bool ftruncate;
47 bool getrealfilename;
48 bool dfreequota;
49 bool prealloc;
50 bool acl;
51 };
52
53
54 static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
55 uint32 share_mode, uint32 access_mask)
56 {
57
58 struct gpfs_config_data *config;
59 int ret = 0;
60
61 SMB_VFS_HANDLE_GET_DATA(handle, config,
62 struct gpfs_config_data,
63 return -1);
64
65 if(!config->sharemodes) {
66 return 0;
67 }
68
69 /*
70 * A named stream fsp will have the basefile open in the fsp
71 * fd, so lacking a distinct fd for the stream we have to skip
72 * kernel_flock and set_gpfs_sharemode for stream.
73 */
74 if (!is_ntfs_default_stream_smb_fname(fsp->fsp_name)) {
75 DEBUG(2,("%s: kernel_flock on stream\n", fsp_str_dbg(fsp)));
76 return 0;
77 }
78
79 START_PROFILE(syscall_kernel_flock);
80
81 kernel_flock(fsp->fh->fd, share_mode, access_mask);
82
83 if (!set_gpfs_sharemode(fsp, access_mask, fsp->share_access)) {
84 ret = -1;
85 }
86
87 END_PROFILE(syscall_kernel_flock);
88
89 return ret;
90 }
91
92 static int vfs_gpfs_close(vfs_handle_struct *handle, files_struct *fsp)
93 {
94
95 struct gpfs_config_data *config;
96
97 SMB_VFS_HANDLE_GET_DATA(handle, config,
98 struct gpfs_config_data,
99 return -1);
100
101 if (config->sharemodes && (fsp->fh != NULL) && (fsp->fh->fd != -1)) {
102 set_gpfs_sharemode(fsp, 0, 0);
103 }
104
105 return SMB_VFS_NEXT_CLOSE(handle, fsp);
106 }
107
108 static int vfs_gpfs_setlease(vfs_handle_struct *handle, files_struct *fsp,
109 int leasetype)
110 {
111 struct gpfs_config_data *config;
112 int ret=0;
113
114 SMB_VFS_HANDLE_GET_DATA(handle, config,
115 struct gpfs_config_data,
116 return -1);
117
118 START_PROFILE(syscall_linux_setlease);
119
120 if (linux_set_lease_sighandler(fsp->fh->fd) == -1) {
121 ret = -1;
122 goto failure;
123 }
124
125 START_PROFILE(syscall_linux_setlease);
126
127 if (config->leases) {
128 /*
129 * Ensure the lease owner is root to allow
130 * correct delivery of lease-break signals.
131 */
132 become_root();
133 ret = set_gpfs_lease(fsp->fh->fd,leasetype);
134 unbecome_root();
135 }
136
137 failure:
138 END_PROFILE(syscall_linux_setlease);
139
140 return ret;
141 }
142
143 static int vfs_gpfs_get_real_filename(struct vfs_handle_struct *handle,
144 const char *path,
145 const char *name,
146 TALLOC_CTX *mem_ctx,
147 char **found_name)
148 {
149 int result;
150 char *full_path;
151 char real_pathname[PATH_MAX+1];
152 int buflen;
153 bool mangled;
154 struct gpfs_config_data *config;
155
156 SMB_VFS_HANDLE_GET_DATA(handle, config,
157 struct gpfs_config_data,
158 return -1);
159
160 if (!config->getrealfilename) {
161 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
162 mem_ctx, found_name);
163 }
164
165 mangled = mangle_is_mangled(name, handle->conn->params);
166 if (mangled) {
167 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
168 mem_ctx, found_name);
169 }
170
171 full_path = talloc_asprintf(talloc_tos(), "%s/%s", path, name);
172 if (full_path == NULL) {
173 errno = ENOMEM;
174 return -1;
175 }
176
177 buflen = sizeof(real_pathname) - 1;
178
179 result = smbd_gpfs_get_realfilename_path(full_path, real_pathname,
180 &buflen);
181
182 TALLOC_FREE(full_path);
183
184 if ((result == -1) && (errno == ENOSYS)) {
185 return SMB_VFS_NEXT_GET_REAL_FILENAME(
186 handle, path, name, mem_ctx, found_name);
187 }
188
189 if (result == -1) {
190 DEBUG(10, ("smbd_gpfs_get_realfilename_path returned %s\n",
191 strerror(errno)));
192 return -1;
193 }
194
195 /*
196 * GPFS does not necessarily null-terminate the returned path
197 * but instead returns the buffer length in buflen.
198 */
199
200 if (buflen < sizeof(real_pathname)) {
201 real_pathname[buflen] = '\0';
202 } else {
203 real_pathname[sizeof(real_pathname)-1] = '\0';
204 }
205
206 DEBUG(10, ("smbd_gpfs_get_realfilename_path: %s/%s -> %s\n",
207 path, name, real_pathname));
208
209 name = strrchr_m(real_pathname, '/');
210 if (name == NULL) {
211 errno = ENOENT;
212 return -1;
213 }
214
215 *found_name = talloc_strdup(mem_ctx, name+1);
216 if (*found_name == NULL) {
217 errno = ENOMEM;
218 return -1;
219 }
220
221 return 0;
222 }
223
224 static void gpfs_dumpacl(int level, struct gpfs_acl *gacl)
225 {
226 gpfs_aclCount_t i;
227 if (gacl==NULL)
228 {
229 DEBUG(0, ("gpfs acl is NULL\n"));
230 return;
231 }
232
233 DEBUG(level, ("gpfs acl: nace: %d, type:%d, version:%d, level:%d, len:%d\n",
234 gacl->acl_nace, gacl->acl_type, gacl->acl_version, gacl->acl_level, gacl->acl_len));
235 for(i=0; i<gacl->acl_nace; i++)
236 {
237 struct gpfs_ace_v4 *gace = gacl->ace_v4 + i;
238 DEBUG(level, ("\tace[%d]: type:%d, flags:0x%x, mask:0x%x, iflags:0x%x, who:%u\n",
239 i, gace->aceType, gace->aceFlags, gace->aceMask,
240 gace->aceIFlags, gace->aceWho));
241 }
242 }
243
244 /*
245 * get the ACL from GPFS, allocated on the specified mem_ctx
246 * internally retries when initial buffer was too small
247 *
248 * caller needs to cast result to either
249 * raw = yes: struct gpfs_opaque_acl
250 * raw = no: struct gpfs_acl
251 *
252 */
253 static void *vfs_gpfs_getacl(TALLOC_CTX *mem_ctx,
254 const char *fname,
255 const bool raw,
256 const gpfs_aclType_t type)
257 {
258
259 void *aclbuf;
260 size_t size = 512;
261 int ret, flags;
262 unsigned int *len;
263 size_t struct_size;
264
265 again:
266
267 aclbuf = talloc_zero_size(mem_ctx, size);
268 if (aclbuf == NULL) {
269 errno = ENOMEM;
270 return NULL;
271 }
272
273 if (raw) {
274 struct gpfs_opaque_acl *buf = (struct gpfs_opaque_acl *) aclbuf;
275 buf->acl_type = type;
276 flags = GPFS_GETACL_NATIVE;
277 len = (unsigned int *) &(buf->acl_buffer_len);
278 struct_size = sizeof(struct gpfs_opaque_acl);
279 } else {
280 struct gpfs_acl *buf = (struct gpfs_acl *) aclbuf;
281 buf->acl_type = type;
282 flags = GPFS_GETACL_STRUCT;
283 len = &(buf->acl_len);
284 struct_size = sizeof(struct gpfs_acl);
285 }
286
287 /* set the length of the buffer as input value */
288 *len = size;
289
290 errno = 0;
291 ret = smbd_gpfs_getacl((char *)fname, flags, aclbuf);
292 if ((ret != 0) && (errno == ENOSPC)) {
293 /*
294 * get the size needed to accommodate the complete buffer
295 *
296 * the value returned only applies to the ACL blob in the
297 * struct so make sure to also have headroom for the first
298 * struct members by adding room for the complete struct
299 * (might be a few bytes too much then)
300 */
301 size = *len + struct_size;
302 talloc_free(aclbuf);
303 DEBUG(10, ("Increasing ACL buffer size to %zu\n", size));
304 goto again;
305 }
306
307 if (ret != 0) {
308 DEBUG(5, ("smbd_gpfs_getacl failed with %s\n",
309 strerror(errno)));
310 talloc_free(aclbuf);
311 return NULL;
312 }
313
314 return aclbuf;
315 }
316
317 /* Tries to get nfs4 acls and returns SMB ACL allocated.
318 * On failure returns 1 if it got non-NFSv4 ACL to prompt
319 * retry with POSIX ACL checks.
320 * On failure returns -1 if there is system (GPFS) error, check errno.
321 * Returns 0 on success
322 */
323 static int gpfs_get_nfs4_acl(TALLOC_CTX *mem_ctx, const char *fname, SMB4ACL_T **ppacl)
324 {
325 gpfs_aclCount_t i;
326 struct gpfs_acl *gacl = NULL;
327 DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname));
328
329 /* Get the ACL */
330 gacl = (struct gpfs_acl*) vfs_gpfs_getacl(talloc_tos(), fname,
331 false, 0);
332 if (gacl == NULL) {
333 DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
334 fname, strerror(errno)));
335 return -1;
336 }
337
338 if (gacl->acl_type != GPFS_ACL_TYPE_NFS4) {
339 DEBUG(10, ("Got non-nfsv4 acl\n"));
340 /* Retry with POSIX ACLs check */
341 talloc_free(gacl);
342 return 1;
343 }
344
345 *ppacl = smb_create_smb4acl(mem_ctx);
346
347 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
348 gacl->acl_len, gacl->acl_level, gacl->acl_version,
349 gacl->acl_nace));
350
351 for (i=0; i<gacl->acl_nace; i++) {
352 struct gpfs_ace_v4 *gace = &gacl->ace_v4[i];
353 SMB_ACE4PROP_T smbace;
354 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
355 "who: %d\n", gace->aceType, gace->aceIFlags,
356 gace->aceFlags, gace->aceMask, gace->aceWho));
357
358 ZERO_STRUCT(smbace);
359 if (gace->aceIFlags & ACE4_IFLAG_SPECIAL_ID) {
360 smbace.flags |= SMB_ACE4_ID_SPECIAL;
361 switch (gace->aceWho) {
362 case ACE4_SPECIAL_OWNER:
363 smbace.who.special_id = SMB_ACE4_WHO_OWNER;
364 break;
365 case ACE4_SPECIAL_GROUP:
366 smbace.who.special_id = SMB_ACE4_WHO_GROUP;
367 break;
368 case ACE4_SPECIAL_EVERYONE:
369 smbace.who.special_id = SMB_ACE4_WHO_EVERYONE;
370 break;
371 default:
372 DEBUG(8, ("invalid special gpfs id %d "
373 "ignored\n", gace->aceWho));
374 continue; /* don't add it */
375 }
376 } else {
377 if (gace->aceFlags & ACE4_FLAG_GROUP_ID)
378 smbace.who.gid = gace->aceWho;
379 else
380 smbace.who.uid = gace->aceWho;
381 }
382
383 /* remove redundant deny entries */
384 if (i > 0 && gace->aceType == SMB_ACE4_ACCESS_DENIED_ACE_TYPE) {
385 struct gpfs_ace_v4 *prev = &gacl->ace_v4[i-1];
386 if (prev->aceType == SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE &&
387 prev->aceFlags == gace->aceFlags &&
388 prev->aceIFlags == gace->aceIFlags &&
389 (gace->aceMask & prev->aceMask) == 0 &&
390 gace->aceWho == prev->aceWho) {
391 /* it's redundant - skip it */
392 continue;
393 }
394 }
395
396 smbace.aceType = gace->aceType;
397 smbace.aceFlags = gace->aceFlags;
398 smbace.aceMask = gace->aceMask;
399 smb_add_ace4(*ppacl, &smbace);
400 }
401
402 talloc_free(gacl);
403
404 return 0;
405 }
406
407 static NTSTATUS gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
408 files_struct *fsp, uint32 security_info,
409 TALLOC_CTX *mem_ctx,
410 struct security_descriptor **ppdesc)
411 {
412 SMB4ACL_T *pacl = NULL;
413 int result;
414 struct gpfs_config_data *config;
415 TALLOC_CTX *frame = talloc_stackframe();
416 NTSTATUS status;
417
418 *ppdesc = NULL;
419
420 SMB_VFS_HANDLE_GET_DATA(handle, config,
421 struct gpfs_config_data,
422 return NT_STATUS_INTERNAL_ERROR);
423
424 if (!config->acl) {
425 status = SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info,
426 mem_ctx, ppdesc);
427 TALLOC_FREE(frame);
428 return status;
429 }
430
431 result = gpfs_get_nfs4_acl(frame, fsp->fsp_name->base_name, &pacl);
432
433 if (result == 0) {
434 status = smb_fget_nt_acl_nfs4(fsp, security_info, mem_ctx,
435 ppdesc, pacl);
436 TALLOC_FREE(frame);
437 return status;
438 }
439
440 if (result > 0) {
441 DEBUG(10, ("retrying with posix acl...\n"));
442 status = posix_fget_nt_acl(fsp, security_info,
443 mem_ctx, ppdesc);
444 TALLOC_FREE(frame);
445 return status;
446 }
447
448 TALLOC_FREE(frame);
449
450 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
451 return map_nt_error_from_unix(errno);
452 }
453
454 static NTSTATUS gpfsacl_get_nt_acl(vfs_handle_struct *handle,
455 const char *name,
456 uint32 security_info,
457 TALLOC_CTX *mem_ctx, struct security_descriptor **ppdesc)
458 {
459 SMB4ACL_T *pacl = NULL;
460 int result;
461 struct gpfs_config_data *config;
462 TALLOC_CTX *frame = talloc_stackframe();
463 NTSTATUS status;
464
465 *ppdesc = NULL;
466
467 SMB_VFS_HANDLE_GET_DATA(handle, config,
468 struct gpfs_config_data,
469 return NT_STATUS_INTERNAL_ERROR);
470
471 if (!config->acl) {
472 status = SMB_VFS_NEXT_GET_NT_ACL(handle, name, security_info,
473 mem_ctx, ppdesc);
474 TALLOC_FREE(frame);
475 return status;
476 }
477
478 result = gpfs_get_nfs4_acl(frame, name, &pacl);
479
480 if (result == 0) {
481 status = smb_get_nt_acl_nfs4(handle->conn, name, security_info,
482 mem_ctx, ppdesc, pacl);
483 TALLOC_FREE(frame);
484 return status;
485 }
486
487 if (result > 0) {
488 DEBUG(10, ("retrying with posix acl...\n"));
489 status = posix_get_nt_acl(handle->conn, name, security_info,
490 mem_ctx, ppdesc);
491 TALLOC_FREE(frame);
492 return status;
493 }
494
495 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
496 TALLOC_FREE(frame);
497 return map_nt_error_from_unix(errno);
498 }
499
500 static bool gpfsacl_process_smbacl(vfs_handle_struct *handle, files_struct *fsp, SMB4ACL_T *smbacl)
501 {
502 int ret;
503 gpfs_aclLen_t gacl_len;
504 SMB4ACE_T *smbace;
505 struct gpfs_acl *gacl;
506 TALLOC_CTX *mem_ctx = talloc_tos();
507
508 gacl_len = offsetof(gpfs_acl_t, ace_v4) + smb_get_naces(smbacl) *
509 sizeof(gpfs_ace_v4_t);
510
511 gacl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, gacl_len);
512 if (gacl == NULL) {
513 DEBUG(0, ("talloc failed\n"));
514 errno = ENOMEM;
515 return False;
516 }
517
518 gacl->acl_len = gacl_len;
519 gacl->acl_level = 0;
520 gacl->acl_version = GPFS_ACL_VERSION_NFS4;
521 gacl->acl_type = GPFS_ACL_TYPE_NFS4;
522 gacl->acl_nace = 0; /* change later... */
523
524 for (smbace=smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
525 struct gpfs_ace_v4 *gace = &gacl->ace_v4[gacl->acl_nace];
526 SMB_ACE4PROP_T *aceprop = smb_get_ace4(smbace);
527
528 gace->aceType = aceprop->aceType;
529 gace->aceFlags = aceprop->aceFlags;
530 gace->aceMask = aceprop->aceMask;
531
532 /*
533 * GPFS can't distinguish between WRITE and APPEND on
534 * files, so one being set without the other is an
535 * error. Sorry for the many ()'s :-)
536 */
537
538 if (!fsp->is_directory
539 &&
540 ((((gace->aceMask & ACE4_MASK_WRITE) == 0)
541 && ((gace->aceMask & ACE4_MASK_APPEND) != 0))
542 ||
543 (((gace->aceMask & ACE4_MASK_WRITE) != 0)
544 && ((gace->aceMask & ACE4_MASK_APPEND) == 0)))
545 &&
546 lp_parm_bool(fsp->conn->params->service, "gpfs",
547 "merge_writeappend", True)) {
548 DEBUG(2, ("vfs_gpfs.c: file [%s]: ACE contains "
549 "WRITE^APPEND, setting WRITE|APPEND\n",
550 fsp_str_dbg(fsp)));
551 gace->aceMask |= ACE4_MASK_WRITE|ACE4_MASK_APPEND;
552 }
553
554 gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
555
556 if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
557 {
558 switch(aceprop->who.special_id)
559 {
560 case SMB_ACE4_WHO_EVERYONE:
561 gace->aceWho = ACE4_SPECIAL_EVERYONE;
562 break;
563 case SMB_ACE4_WHO_OWNER:
564 gace->aceWho = ACE4_SPECIAL_OWNER;
565 break;
566 case SMB_ACE4_WHO_GROUP:
567 gace->aceWho = ACE4_SPECIAL_GROUP;
568 break;
569 default:
570 DEBUG(8, ("unsupported special_id %d\n", aceprop->who.special_id));
571 continue; /* don't add it !!! */
572 }
573 } else {
574 /* just only for the type safety... */
575 if (aceprop->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
576 gace->aceWho = aceprop->who.gid;
577 else
578 gace->aceWho = aceprop->who.uid;
579 }
580
581 gacl->acl_nace++;
582 }
583
584 ret = smbd_gpfs_putacl(fsp->fsp_name->base_name,
585 GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gacl);
586 if (ret != 0) {
587 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno)));
588 gpfs_dumpacl(8, gacl);
589 return False;
590 }
591
592 DEBUG(10, ("gpfs_putacl succeeded\n"));
593 return True;
594 }
595
596 static NTSTATUS gpfsacl_set_nt_acl_internal(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
597 {
598 struct gpfs_acl *acl;
599 NTSTATUS result = NT_STATUS_ACCESS_DENIED;
600
601 acl = (struct gpfs_acl*) vfs_gpfs_getacl(talloc_tos(),
602 fsp->fsp_name->base_name,
603 false, 0);
604 if (acl == NULL) {
605 return map_nt_error_from_unix(errno);
606 }
607
608 if (acl->acl_version == GPFS_ACL_VERSION_NFS4) {
609 if (lp_parm_bool(fsp->conn->params->service, "gpfs",
610 "refuse_dacl_protected", false)
611 && (psd->type&SEC_DESC_DACL_PROTECTED)) {
612 DEBUG(2, ("Rejecting unsupported ACL with DACL_PROTECTED bit set\n"));
613 talloc_free(acl);
614 return NT_STATUS_NOT_SUPPORTED;
615 }
616
617 result = smb_set_nt_acl_nfs4(handle,
618 fsp, security_info_sent, psd,
619 gpfsacl_process_smbacl);
620 } else { /* assume POSIX ACL - by default... */
621 result = set_nt_acl(fsp, security_info_sent, psd);
622 }
623
624 talloc_free(acl);
625 return result;
626 }
627
628 static NTSTATUS gpfsacl_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
629 {
630 struct gpfs_config_data *config;
631
632 SMB_VFS_HANDLE_GET_DATA(handle, config,
633 struct gpfs_config_data,
634 return NT_STATUS_INTERNAL_ERROR);
635
636 if (!config->acl) {
637 return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
638 }
639
640 return gpfsacl_set_nt_acl_internal(handle, fsp, security_info_sent, psd);
641 }
642
643 static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl, TALLOC_CTX *mem_ctx)
644 {
645 SMB_ACL_T result;
646 gpfs_aclCount_t i;
647
648 result = sys_acl_init(mem_ctx);
649 if (result == NULL) {
650 errno = ENOMEM;
651 return NULL;
652 }
653
654 result->count = pacl->acl_nace;
655 result->acl = talloc_realloc(result, result->acl, struct smb_acl_entry,
656 result->count);
657 if (result->acl == NULL) {
658 TALLOC_FREE(result);
659 errno = ENOMEM;
660 return NULL;
661 }
662
663 for (i=0; i<pacl->acl_nace; i++) {
664 struct smb_acl_entry *ace = &result->acl[i];
665 const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
666
667 DEBUG(10, ("Converting type %d id %lu perm %x\n",
668 (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
669 (int)g_ace->ace_perm));
670
671 switch (g_ace->ace_type) {
672 case GPFS_ACL_USER:
673 ace->a_type = SMB_ACL_USER;
674 ace->info.user.uid = (uid_t)g_ace->ace_who;
675 break;
676 case GPFS_ACL_USER_OBJ:
677 ace->a_type = SMB_ACL_USER_OBJ;
678 break;
679 case GPFS_ACL_GROUP:
680 ace->a_type = SMB_ACL_GROUP;
681 ace->info.group.gid = (gid_t)g_ace->ace_who;
682 break;
683 case GPFS_ACL_GROUP_OBJ:
684 ace->a_type = SMB_ACL_GROUP_OBJ;
685 break;
686 case GPFS_ACL_OTHER:
687 ace->a_type = SMB_ACL_OTHER;
688 break;
689 case GPFS_ACL_MASK:
690 ace->a_type = SMB_ACL_MASK;
691 break;
692 default:
693 DEBUG(10, ("Got invalid ace_type: %d\n",
694 g_ace->ace_type));
695 TALLOC_FREE(result);
696 errno = EINVAL;
697 return NULL;
698 }
699
700 ace->a_perm = 0;
701 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
702 SMB_ACL_READ : 0;
703 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
704 SMB_ACL_WRITE : 0;
705 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
706 SMB_ACL_EXECUTE : 0;
707
708 DEBUGADD(10, ("Converted to %d perm %x\n",
709 ace->a_type, ace->a_perm));
710 }
711
712 return result;
713 }
714
715 static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type,
716 TALLOC_CTX *mem_ctx)
717 {
718 struct gpfs_acl *pacl;
719 SMB_ACL_T result = NULL;
720
721 pacl = vfs_gpfs_getacl(talloc_tos(), path, false, type);
722
723 if (pacl == NULL) {
724 DEBUG(10, ("vfs_gpfs_getacl failed for %s with %s\n",
725 path, strerror(errno)));
726 if (errno == 0) {
727 errno = EINVAL;
728 }
729 goto done;
730 }
731
732 if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
733 DEBUG(10, ("Got acl version %d, expected %d\n",
734 pacl->acl_version, GPFS_ACL_VERSION_POSIX));
735 errno = EINVAL;
736 goto done;
737 }
738
739 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
740 pacl->acl_len, pacl->acl_level, pacl->acl_version,
741 pacl->acl_nace));
742
743 result = gpfs2smb_acl(pacl, mem_ctx);
744 if (result != NULL) {
745 errno = 0;
746 }
747
748 done:
749
750 if (pacl != NULL) {
751 talloc_free(pacl);
752 }
753 if (errno != 0) {
754 TALLOC_FREE(result);
755 }
756 return result;
757 }
758
759 static SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
760 const char *path_p,
761 SMB_ACL_TYPE_T type,
762 TALLOC_CTX *mem_ctx)
763 {
764 gpfs_aclType_t gpfs_type;
765 struct gpfs_config_data *config;
766
767 SMB_VFS_HANDLE_GET_DATA(handle, config,
768 struct gpfs_config_data,
769 return NULL);
770
771 if (!config->acl) {
772 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p,
773 type, mem_ctx);
774 }
775
776 switch(type) {
777 case SMB_ACL_TYPE_ACCESS:
778 gpfs_type = GPFS_ACL_TYPE_ACCESS;
779 break;
780 case SMB_ACL_TYPE_DEFAULT:
781 gpfs_type = GPFS_ACL_TYPE_DEFAULT;
782 break;
783 default:
784 DEBUG(0, ("Got invalid type: %d\n", type));
785 smb_panic("exiting");
786 }
787
788 return gpfsacl_get_posix_acl(path_p, gpfs_type, mem_ctx);
789 }
790
791 static SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
792 files_struct *fsp,
793 TALLOC_CTX *mem_ctx)
794 {
795 struct gpfs_config_data *config;
796
797 SMB_VFS_HANDLE_GET_DATA(handle, config,
798 struct gpfs_config_data,
799 return NULL);
800
801 if (!config->acl) {
802 return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
803 }
804
805 return gpfsacl_get_posix_acl(fsp->fsp_name->base_name,
806 GPFS_ACL_TYPE_ACCESS, mem_ctx);
807 }
808
809 static int gpfsacl_sys_acl_blob_get_file(vfs_handle_struct *handle,
810 const char *path_p,
811 TALLOC_CTX *mem_ctx,
812 char **blob_description,
813 DATA_BLOB *blob)
814 {
815 struct gpfs_config_data *config;
816 struct gpfs_opaque_acl *acl = NULL;
817 DATA_BLOB aclblob;
818 int result;
819
820 SMB_VFS_HANDLE_GET_DATA(handle, config,
821 struct gpfs_config_data,
822 return -1);
823
824 if (!config->acl) {
825 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, path_p,
826 mem_ctx,
827 blob_description,
828 blob);
829 }
830
831 errno = 0;
832 acl = (struct gpfs_opaque_acl *)
833 vfs_gpfs_getacl(mem_ctx,
834 path_p,
835 true,
836 GPFS_ACL_TYPE_NFS4);
837
838 if (errno) {
839 DEBUG(5, ("vfs_gpfs_getacl finished with errno %d: %s\n",
840 errno, strerror(errno)));
841
842 /* EINVAL means POSIX ACL, bail out on other cases */
843 if (errno != EINVAL) {
844 return -1;
845 }
846 }
847
848 if (acl != NULL) {
849 /*
850 * file has NFSv4 ACL
851 *
852 * we only need the actual ACL blob here
853 * acl_version will always be NFS4 because we asked
854 * for NFS4
855 * acl_type is only used for POSIX ACLs
856 */
857 aclblob.data = (uint8_t*) acl->acl_var_data;
858 aclblob.length = acl->acl_buffer_len;
859
860 *blob_description = talloc_strdup(mem_ctx, "gpfs_nfs4_acl");
861 if (!*blob_description) {
862 talloc_free(acl);
863 errno = ENOMEM;
864 return -1;
865 }
866
867 result = non_posix_sys_acl_blob_get_file_helper(handle, path_p,
868 aclblob,
869 mem_ctx, blob);
870
871 talloc_free(acl);
872 return result;
873 }
874
875 /* fall back to POSIX ACL */
876 return posix_sys_acl_blob_get_file(handle, path_p, mem_ctx,
877 blob_description, blob);
878 }
879
880 static int gpfsacl_sys_acl_blob_get_fd(vfs_handle_struct *handle,
881 files_struct *fsp,
882 TALLOC_CTX *mem_ctx,
883 char **blob_description,
884 DATA_BLOB *blob)
885 {
886 struct gpfs_config_data *config;
887 struct gpfs_opaque_acl *acl = NULL;
888 DATA_BLOB aclblob;
889 int result;
890
891 SMB_VFS_HANDLE_GET_DATA(handle, config,
892 struct gpfs_config_data,
893 return -1);
894
895 if (!config->acl) {
896 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
897 blob_description, blob);
898 }
899
900 errno = 0;
901 acl = (struct gpfs_opaque_acl *) vfs_gpfs_getacl(mem_ctx,
902 fsp->fsp_name->base_name,
903 true,
904 GPFS_ACL_TYPE_NFS4);
905
906 if (errno) {
907 DEBUG(5, ("vfs_gpfs_getacl finished with errno %d: %s\n",
908 errno, strerror(errno)));
909
910 /* EINVAL means POSIX ACL, bail out on other cases */
911 if (errno != EINVAL) {
912 return -1;
913 }
914 }
915
916 if (acl != NULL) {
917 /*
918 * file has NFSv4 ACL
919 *
920 * we only need the actual ACL blob here
921 * acl_version will always be NFS4 because we asked
922 * for NFS4
923 * acl_type is only used for POSIX ACLs
924 */
925 aclblob.data = (uint8_t*) acl->acl_var_data;
926 aclblob.length = acl->acl_buffer_len;
927
928 *blob_description = talloc_strdup(mem_ctx, "gpfs_nfs4_acl");
929 if (!*blob_description) {
930 talloc_free(acl);
931 errno = ENOMEM;
932 return -1;
933 }
934
935 result = non_posix_sys_acl_blob_get_fd_helper(handle, fsp,
936 aclblob, mem_ctx,
937 blob);
938
939 talloc_free(acl);
940 return result;
941 }
942
943 /* fall back to POSIX ACL */
944 return posix_sys_acl_blob_get_fd(handle, fsp, mem_ctx,
945 blob_description, blob);
946 }
947
948 static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
949 SMB_ACL_TYPE_T type)
950 {
951 gpfs_aclLen_t len;
952 struct gpfs_acl *result;
953 int i;
954
955 DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
956
957 len = offsetof(gpfs_acl_t, ace_v1) + (pacl->count) *
958 sizeof(gpfs_ace_v1_t);
959
960 result = (struct gpfs_acl *)SMB_MALLOC(len);
961 if (result == NULL) {
962 errno = ENOMEM;
963 return result;
964 }
965
966 result->acl_len = len;
967 result->acl_level = 0;
968 result->acl_version = GPFS_ACL_VERSION_POSIX;
969 result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
970 GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
971 result->acl_nace = pacl->count;
972
973 for (i=0; i<pacl->count; i++) {
974 const struct smb_acl_entry *ace = &pacl->acl[i];
975 struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
976
977 DEBUG(10, ("Converting type %d perm %x\n",
978 (int)ace->a_type, (int)ace->a_perm));
979
980 g_ace->ace_perm = 0;
981
982 switch(ace->a_type) {
983 case SMB_ACL_USER:
984 g_ace->ace_type = GPFS_ACL_USER;
985 g_ace->ace_who = (gpfs_uid_t)ace->info.user.uid;
986 break;
987 case SMB_ACL_USER_OBJ:
988 g_ace->ace_type = GPFS_ACL_USER_OBJ;
989 g_ace->ace_perm |= ACL_PERM_CONTROL;
990 g_ace->ace_who = 0;
991 break;
992 case SMB_ACL_GROUP:
993 g_ace->ace_type = GPFS_ACL_GROUP;
994 g_ace->ace_who = (gpfs_uid_t)ace->info.group.gid;
995 break;
996 case SMB_ACL_GROUP_OBJ:
997 g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
998 g_ace->ace_who = 0;
999 break;
1000 case SMB_ACL_MASK:
1001 g_ace->ace_type = GPFS_ACL_MASK;
1002 g_ace->ace_perm = 0x8f;
1003 g_ace->ace_who = 0;
1004 break;
1005 case SMB_ACL_OTHER:
1006 g_ace->ace_type = GPFS_ACL_OTHER;
1007 g_ace->ace_who = 0;
1008 break;
1009 default:
1010 DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
1011 errno = EINVAL;
1012 SAFE_FREE(result);
1013 return NULL;
1014 }
1015
1016 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
1017 ACL_PERM_READ : 0;
1018 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
1019 ACL_PERM_WRITE : 0;
1020 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
1021 ACL_PERM_EXECUTE : 0;
1022
1023 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
1024 g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
1025 }
1026
1027 return result;
1028 }
1029
1030 static int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
1031 const char *name,
1032 SMB_ACL_TYPE_T type,
1033 SMB_ACL_T theacl)
1034 {
1035 struct gpfs_acl *gpfs_acl;
1036 int result;
1037 struct gpfs_config_data *config;
1038
1039 SMB_VFS_HANDLE_GET_DATA(handle, config,
1040 struct gpfs_config_data,
1041 return -1);
1042
1043 if (!config->acl) {
1044 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name, type, theacl);
1045 }
1046
1047 gpfs_acl = smb2gpfs_acl(theacl, type);
1048 if (gpfs_acl == NULL) {
1049 return -1;
1050 }
1051
1052 result = smbd_gpfs_putacl((char *)name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gpfs_acl);
1053
1054 SAFE_FREE(gpfs_acl);
1055 return result;
1056 }
1057
1058 static int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
1059 files_struct *fsp,
1060 SMB_ACL_T theacl)
1061 {
1062 struct gpfs_config_data *config;
1063
1064 SMB_VFS_HANDLE_GET_DATA(handle, config,
1065 struct gpfs_config_data,
1066 return -1);
1067
1068 if (!config->acl) {
1069 return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
1070 }
1071
1072 return gpfsacl_sys_acl_set_file(handle, fsp->fsp_name->base_name,
1073 SMB_ACL_TYPE_ACCESS, theacl);
1074 }
1075
1076 static int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
1077 const char *path)
1078 {
1079 struct gpfs_config_data *config;
1080
1081 SMB_VFS_HANDLE_GET_DATA(handle, config,
1082 struct gpfs_config_data,
1083 return -1);
1084
1085 if (!config->acl) {
1086 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
1087 }
1088
1089 errno = ENOTSUP;
1090 return -1;
1091 }
1092
1093 /*
1094 * Assumed: mode bits are shiftable and standard
1095 * Output: the new aceMask field for an smb nfs4 ace
1096 */
1097 static uint32 gpfsacl_mask_filter(uint32 aceType, uint32 aceMask, uint32 rwx)
1098 {
1099 const uint32 posix_nfs4map[3] = {
1100 SMB_ACE4_EXECUTE, /* execute */
1101 SMB_ACE4_WRITE_DATA | SMB_ACE4_APPEND_DATA, /* write; GPFS specific */
1102 SMB_ACE4_READ_DATA /* read */
1103 };
1104 int i;
1105 uint32_t posix_mask = 0x01;
1106 uint32_t posix_bit;
1107 uint32_t nfs4_bits;
1108
1109 for(i=0; i<3; i++) {
1110 nfs4_bits = posix_nfs4map[i];
1111 posix_bit = rwx & posix_mask;
1112
1113 if (aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE) {
1114 if (posix_bit)
1115 aceMask |= nfs4_bits;
1116 else
1117 aceMask &= ~nfs4_bits;
1118 } else {
1119 /* add deny bits when suitable */
1120 if (!posix_bit)
1121 aceMask |= nfs4_bits;
1122 else
1123 aceMask &= ~nfs4_bits;
1124 } /* other ace types are unexpected */
1125
1126 posix_mask <<= 1;
1127 }
1128
1129 return aceMask;
1130 }
1131
1132 static int gpfsacl_emu_chmod(vfs_handle_struct *handle,
1133 const char *path, mode_t mode)
1134 {
1135 SMB4ACL_T *pacl = NULL;
1136 int result;
1137 bool haveAllowEntry[SMB_ACE4_WHO_EVERYONE + 1] = {False, False, False, False};
1138 int i;
1139 files_struct fake_fsp; /* TODO: rationalize parametrization */
1140 SMB4ACE_T *smbace;
1141 TALLOC_CTX *frame = talloc_stackframe();
1142 NTSTATUS status;
1143
1144 DEBUG(10, ("gpfsacl_emu_chmod invoked for %s mode %o\n", path, mode));
1145
1146 result = gpfs_get_nfs4_acl(frame, path, &pacl);
1147 if (result) {
1148 TALLOC_FREE(frame);
1149 return result;
1150 }
1151
1152 if (mode & ~(S_IRWXU | S_IRWXG | S_IRWXO)) {
1153 DEBUG(2, ("WARNING: cutting extra mode bits %o on %s\n", mode, path));
1154 }
1155
1156 for (smbace=smb_first_ace4(pacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
1157 SMB_ACE4PROP_T *ace = smb_get_ace4(smbace);
1158 uint32_t specid = ace->who.special_id;
1159
1160 if (ace->flags&SMB_ACE4_ID_SPECIAL &&
1161 ace->aceType<=SMB_ACE4_ACCESS_DENIED_ACE_TYPE &&
1162 specid <= SMB_ACE4_WHO_EVERYONE) {
1163
1164 uint32_t newMask;
1165
1166 if (ace->aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE)
1167 haveAllowEntry[specid] = True;
1168
1169 /* mode >> 6 for @owner, mode >> 3 for @group,
1170 * mode >> 0 for @everyone */
1171 newMask = gpfsacl_mask_filter(ace->aceType, ace->aceMask,
1172 mode >> ((SMB_ACE4_WHO_EVERYONE - specid) * 3));
1173 if (ace->aceMask!=newMask) {
1174 DEBUG(10, ("ace changed for %s (%o -> %o) id=%d\n",
1175 path, ace->aceMask, newMask, specid));
1176 }
1177 ace->aceMask = newMask;
1178 }
1179 }
1180
1181 /* make sure we have at least ALLOW entries
1182 * for all the 3 special ids (@EVERYONE, @OWNER, @GROUP)
1183 * - if necessary
1184 */
1185 for(i = SMB_ACE4_WHO_OWNER; i<=SMB_ACE4_WHO_EVERYONE; i++) {
1186 SMB_ACE4PROP_T ace;
1187
1188 if (haveAllowEntry[i]==True)
1189 continue;
1190
1191 ZERO_STRUCT(ace);
1192 ace.aceType = SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE;
1193 ace.flags |= SMB_ACE4_ID_SPECIAL;
1194 ace.who.special_id = i;
1195
1196 if (i==SMB_ACE4_WHO_GROUP) /* not sure it's necessary... */
1197 ace.aceFlags |= SMB_ACE4_IDENTIFIER_GROUP;
1198
1199 ace.aceMask = gpfsacl_mask_filter(ace.aceType, ace.aceMask,
1200 mode >> ((SMB_ACE4_WHO_EVERYONE - i) * 3));
1201
1202 /* don't add unnecessary aces */
1203 if (!ace.aceMask)
1204 continue;
1205
1206 /* we add it to the END - as windows expects allow aces */
1207 smb_add_ace4(pacl, &ace);
1208 DEBUG(10, ("Added ALLOW ace for %s, mode=%o, id=%d, aceMask=%x\n",
1209 path, mode, i, ace.aceMask));
1210 }
1211
1212 /* don't add complementary DENY ACEs here */
1213 ZERO_STRUCT(fake_fsp);
1214 fake_fsp.fsp_name = synthetic_smb_fname(
1215 frame, path, NULL, NULL);
1216 if (fake_fsp.fsp_name == NULL) {
1217 errno = ENOMEM;
1218 TALLOC_FREE(frame);
1219 return -1;
1220 }
1221 /* put the acl */
1222 if (gpfsacl_process_smbacl(handle, &fake_fsp, pacl) == False) {
1223 TALLOC_FREE(frame);
1224 return -1;
1225 }
1226
1227 TALLOC_FREE(frame);
1228 return 0; /* ok for [f]chmod */
1229 }
1230
1231 static int vfs_gpfs_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
1232 {
1233 struct smb_filename *smb_fname_cpath;
1234 int rc;
1235
1236 smb_fname_cpath = synthetic_smb_fname(talloc_tos(), path, NULL, NULL);
1237 if (smb_fname_cpath == NULL) {
1238 errno = ENOMEM;
1239 return -1;
1240 }
1241
1242 if (SMB_VFS_NEXT_STAT(handle, smb_fname_cpath) != 0) {
1243 return -1;
1244 }
1245
1246 /* avoid chmod() if possible, to preserve acls */
1247 if ((smb_fname_cpath->st.st_ex_mode & ~S_IFMT) == mode) {
1248 return 0;
1249 }
1250
1251 rc = gpfsacl_emu_chmod(handle, path, mode);
1252 if (rc == 1)
1253 return SMB_VFS_NEXT_CHMOD(handle, path, mode);
1254 return rc;
1255 }
1256
1257 static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
1258 {
1259 SMB_STRUCT_STAT st;
1260 int rc;
1261
1262 if (SMB_VFS_NEXT_FSTAT(handle, fsp, &st) != 0) {
1263 return -1;
1264 }
1265
1266 /* avoid chmod() if possible, to preserve acls */
1267 if ((st.st_ex_mode & ~S_IFMT) == mode) {
1268 return 0;
1269 }
1270
1271 rc = gpfsacl_emu_chmod(handle, fsp->fsp_name->base_name,
1272 mode);
1273 if (rc == 1)
1274 return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
1275 return rc;
1276 }
1277
1278 static int gpfs_set_xattr(struct vfs_handle_struct *handle, const char *path,
1279 const char *name, const void *value, size_t size, int flags){
1280 struct xattr_DOSATTRIB dosattrib;
1281 enum ndr_err_code ndr_err;
1282 DATA_BLOB blob;
1283 const char *attrstr = value;
1284 unsigned int dosmode=0;
1285 struct gpfs_winattr attrs;
1286 int ret = 0;
1287 struct gpfs_config_data *config;
1288
1289 SMB_VFS_HANDLE_GET_DATA(handle, config,
1290 struct gpfs_config_data,
1291 return -1);
1292
1293 if (!config->winattr) {
1294 DEBUG(10, ("gpfs_set_xattr:name is %s -> next\n",name));
1295 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1296 }
1297
1298 DEBUG(10, ("gpfs_set_xattr: %s \n",path));
1299
1300 /* Only handle DOS Attributes */
1301 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1302 DEBUG(5, ("gpfs_set_xattr:name is %s\n",name));
1303 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1304 }
1305
1306 blob.data = (uint8_t *)attrstr;
1307 blob.length = size;
1308
1309 ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), &dosattrib,
1310 (ndr_pull_flags_fn_t)ndr_pull_xattr_DOSATTRIB);
1311
1312 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1313 DEBUG(1, ("gpfs_set_xattr: bad ndr decode "
1314 "from EA on file %s: Error = %s\n",
1315 path, ndr_errstr(ndr_err)));
1316 return false;
1317 }
1318
1319 if (dosattrib.version != 3) {
1320 DEBUG(1, ("gpfs_set_xattr: expected dosattrib version 3, got "
1321 "%d\n", (int)dosattrib.version));
1322 return false;
1323 }
1324 if (!(dosattrib.info.info3.valid_flags & XATTR_DOSINFO_ATTRIB)) {
1325 DEBUG(10, ("gpfs_set_xattr: XATTR_DOSINFO_ATTRIB not "
1326 "valid, ignoring\n"));
1327 return true;
1328 }
1329
1330 dosmode = dosattrib.info.info3.attrib;
1331
1332 attrs.winAttrs = 0;
1333 /*Just map RD_ONLY, ARCHIVE, SYSTEM HIDDEN and SPARSE. Ignore the others*/
1334 if (dosmode & FILE_ATTRIBUTE_ARCHIVE){
1335 attrs.winAttrs |= GPFS_WINATTR_ARCHIVE;
1336 }
1337 if (dosmode & FILE_ATTRIBUTE_HIDDEN){
1338 attrs.winAttrs |= GPFS_WINATTR_HIDDEN;
1339 }
1340 if (dosmode & FILE_ATTRIBUTE_SYSTEM){
1341 attrs.winAttrs |= GPFS_WINATTR_SYSTEM;
1342 }
1343 if (dosmode & FILE_ATTRIBUTE_READONLY){
1344 attrs.winAttrs |= GPFS_WINATTR_READONLY;
1345 }
1346 if (dosmode & FILE_ATTRIBUTE_SPARSE) {
1347 attrs.winAttrs |= GPFS_WINATTR_SPARSE_FILE;
1348 }
1349
1350
1351 ret = set_gpfs_winattrs(discard_const_p(char, path),
1352 GPFS_WINATTR_SET_ATTRS, &attrs);
1353 if ( ret == -1){
1354 if (errno == ENOSYS) {
1355 return SMB_VFS_NEXT_SETXATTR(handle, path, name, value,
1356 size, flags);
1357 }
1358
1359 DEBUG(1, ("gpfs_set_xattr:Set GPFS attributes failed %d\n",ret));
1360 return -1;
1361 }
1362
1363 DEBUG(10, ("gpfs_set_xattr:Set attributes: 0x%x\n",attrs.winAttrs));
1364 return 0;
1365 }
1366
1367 static ssize_t gpfs_get_xattr(struct vfs_handle_struct *handle, const char *path,
1368 const char *name, void *value, size_t size){
1369 char *attrstr = value;
1370 unsigned int dosmode = 0;
1371 struct gpfs_winattr attrs;
1372 int ret = 0;
1373 struct gpfs_config_data *config;
1374
1375 SMB_VFS_HANDLE_GET_DATA(handle, config,
1376 struct gpfs_config_data,
1377 return -1);
1378
1379 if (!config->winattr) {
1380 DEBUG(10, ("gpfs_get_xattr:name is %s -> next\n",name));
1381 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1382 }
1383
1384 DEBUG(10, ("gpfs_get_xattr: %s \n",path));
1385
1386 /* Only handle DOS Attributes */
1387 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1388 DEBUG(5, ("gpfs_get_xattr:name is %s\n",name));
1389 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1390 }
1391
1392 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1393 if ( ret == -1){
1394 if (errno == ENOSYS) {
1395 return SMB_VFS_NEXT_GETXATTR(handle, path, name, value,
1396 size);
1397 }
1398
1399 DEBUG(1, ("gpfs_get_xattr: Get GPFS attributes failed: "
1400 "%d (%s)\n", ret, strerror(errno)));
1401 return -1;
1402 }
1403
1404 DEBUG(10, ("gpfs_get_xattr:Got attributes: 0x%x\n",attrs.winAttrs));
1405
1406 /*Just map RD_ONLY, ARCHIVE, SYSTEM, HIDDEN and SPARSE. Ignore the others*/
1407 if (attrs.winAttrs & GPFS_WINATTR_ARCHIVE){
1408 dosmode |= FILE_ATTRIBUTE_ARCHIVE;
1409 }
1410 if (attrs.winAttrs & GPFS_WINATTR_HIDDEN){
1411 dosmode |= FILE_ATTRIBUTE_HIDDEN;
1412 }
1413 if (attrs.winAttrs & GPFS_WINATTR_SYSTEM){
1414 dosmode |= FILE_ATTRIBUTE_SYSTEM;
1415 }
1416 if (attrs.winAttrs & GPFS_WINATTR_READONLY){
1417 dosmode |= FILE_ATTRIBUTE_READONLY;
1418 }
1419 if (attrs.winAttrs & GPFS_WINATTR_SPARSE_FILE) {
1420 dosmode |= FILE_ATTRIBUTE_SPARSE;
1421 }
1422
1423 snprintf(attrstr, size, "0x%2.2x",
1424 (unsigned int)(dosmode & SAMBA_ATTRIBUTES_MASK));
1425 DEBUG(10, ("gpfs_get_xattr: returning %s\n",attrstr));
1426 return 4;
1427 }
1428
1429 static int vfs_gpfs_stat(struct vfs_handle_struct *handle,
1430 struct smb_filename *smb_fname)
1431 {
1432 struct gpfs_winattr attrs;
1433 char *fname = NULL;
1434 NTSTATUS status;
1435 int ret;
1436 struct gpfs_config_data *config;
1437
1438 SMB_VFS_HANDLE_GET_DATA(handle, config,
1439 struct gpfs_config_data,
1440 return -1);
1441
1442 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
1443 if (ret == -1) {
1444 return -1;
1445 }
1446
1447 if (!config->winattr) {
1448 return 0;
1449 }
1450
1451 status = get_full_smb_filename(talloc_tos(), smb_fname, &fname);
1452 if (!NT_STATUS_IS_OK(status)) {
1453 errno = map_errno_from_nt_status(status);
1454 return -1;
1455 }
1456 ret = get_gpfs_winattrs(discard_const_p(char, fname), &attrs);
1457 TALLOC_FREE(fname);
1458 if (ret == 0) {
1459 smb_fname->st.st_ex_calculated_birthtime = false;
1460 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1461 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1462 }
1463 return 0;
1464 }
1465
1466 static int vfs_gpfs_fstat(struct vfs_handle_struct *handle,
1467 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1468 {
1469 struct gpfs_winattr attrs;
1470 int ret;
1471 struct gpfs_config_data *config;
1472
1473 SMB_VFS_HANDLE_GET_DATA(handle, config,
1474 struct gpfs_config_data,
1475 return -1);
1476
1477 ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
1478 if (ret == -1) {
1479 return -1;
1480 }
1481 if ((fsp->fh == NULL) || (fsp->fh->fd == -1)) {
1482 return 0;
1483 }
1484 if (!config->winattr) {
1485 return 0;
1486 }
1487
1488 ret = smbd_fget_gpfs_winattrs(fsp->fh->fd, &attrs);
1489 if (ret == 0) {
1490 sbuf->st_ex_calculated_birthtime = false;
1491 sbuf->st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1492 sbuf->st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1493 }
1494 return 0;
1495 }
1496
1497 static int vfs_gpfs_lstat(struct vfs_handle_struct *handle,
1498 struct smb_filename *smb_fname)
1499 {
1500 struct gpfs_winattr attrs;
1501 char *path = NULL;
1502 NTSTATUS status;
1503 int ret;
1504 struct gpfs_config_data *config;
1505
1506 SMB_VFS_HANDLE_GET_DATA(handle, config,
1507 struct gpfs_config_data,
1508 return -1);
1509
1510 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1511 if (ret == -1) {
1512 return -1;
1513 }
1514 if (!config->winattr) {
1515 return 0;
1516 }
1517
1518 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1519 if (!NT_STATUS_IS_OK(status)) {
1520 errno = map_errno_from_nt_status(status);
1521 return -1;
1522 }
1523 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1524 TALLOC_FREE(path);
1525 if (ret == 0) {
1526 smb_fname->st.st_ex_calculated_birthtime = false;
1527 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1528 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1529 }
1530 return 0;
1531 }
1532
1533 static int vfs_gpfs_ntimes(struct vfs_handle_struct *handle,
1534 const struct smb_filename *smb_fname,
1535 struct smb_file_time *ft)
1536 {
1537
1538 struct gpfs_winattr attrs;
1539 int ret;
1540 char *path = NULL;
1541 NTSTATUS status;
1542 struct gpfs_config_data *config;
1543
1544 SMB_VFS_HANDLE_GET_DATA(handle, config,
1545 struct gpfs_config_data,
1546 return -1);
1547
1548 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1549 if(ret == -1){
1550 /* don't complain if access was denied */
1551 if (errno != EPERM && errno != EACCES) {
1552 DEBUG(1,("vfs_gpfs_ntimes: SMB_VFS_NEXT_NTIMES failed:"
1553 "%s", strerror(errno)));
1554 }
1555 return -1;
1556 }
1557
1558 if(null_timespec(ft->create_time)){
1559 DEBUG(10,("vfs_gpfs_ntimes:Create Time is NULL\n"));
1560 return 0;
1561 }
1562
1563 if (!config->winattr) {
1564 return 0;
1565 }
1566
1567 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1568 if (!NT_STATUS_IS_OK(status)) {
1569 errno = map_errno_from_nt_status(status);
1570 return -1;
1571 }
1572
1573 attrs.winAttrs = 0;
1574 attrs.creationTime.tv_sec = ft->create_time.tv_sec;
1575 attrs.creationTime.tv_nsec = ft->create_time.tv_nsec;
1576
1577 ret = set_gpfs_winattrs(discard_const_p(char, path),
1578 GPFS_WINATTR_SET_CREATION_TIME, &attrs);
1579 if(ret == -1 && errno != ENOSYS){
1580 DEBUG(1,("vfs_gpfs_ntimes: set GPFS ntimes failed %d\n",ret));
1581 return -1;
1582 }
1583 return 0;
1584
1585 }
1586
1587 static int vfs_gpfs_fallocate(struct vfs_handle_struct *handle,
1588 struct files_struct *fsp, enum vfs_fallocate_mode mode,
1589 off_t offset, off_t len)
1590 {
1591 int ret;
1592 struct gpfs_config_data *config;
1593
1594 SMB_VFS_HANDLE_GET_DATA(handle, config,
1595 struct gpfs_config_data,
1596 return -1);
1597
1598 if (!config->prealloc) {
1599 /* you should better not run fallocate() on GPFS at all */
1600 errno = ENOTSUP;
1601 return -1;
1602 }
1603
1604 if (mode == VFS_FALLOCATE_KEEP_SIZE) {
1605 DEBUG(10, ("Unsupported VFS_FALLOCATE_KEEP_SIZE\n"));
1606 errno = ENOTSUP;
1607 return -1;
1608 }
1609
1610 ret = smbd_gpfs_prealloc(fsp->fh->fd, offset, len);
1611
1612 if (ret == -1 && errno != ENOSYS) {
1613 DEBUG(0, ("GPFS prealloc failed: %s\n", strerror(errno)));
1614 } else if (ret == -1 && errno == ENOSYS) {
1615 DEBUG(10, ("GPFS prealloc not supported.\n"));
1616 } else {
1617 DEBUG(10, ("GPFS prealloc succeeded.\n"));
1618 }
1619
1620 return ret;
1621 }
1622
1623 static int vfs_gpfs_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1624 off_t len)
1625 {
1626 int result;
1627 struct gpfs_config_data *config;
1628
1629 SMB_VFS_HANDLE_GET_DATA(handle, config,
1630 struct gpfs_config_data,
1631 return -1);
1632
1633 if (!config->ftruncate) {
1634 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1635 }
1636
1637 result = smbd_gpfs_ftruncate(fsp->fh->fd, len);
1638 if ((result == -1) && (errno == ENOSYS)) {
1639 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1640 }
1641 return result;
1642 }
1643
1644 static bool vfs_gpfs_is_offline(struct vfs_handle_struct *handle,
1645 const struct smb_filename *fname,
1646 SMB_STRUCT_STAT *sbuf)
1647 {
1648 struct gpfs_winattr attrs;
1649 char *path = NULL;
1650 NTSTATUS status;
1651 struct gpfs_config_data *config;
1652 int ret;
1653
1654 SMB_VFS_HANDLE_GET_DATA(handle, config,
1655 struct gpfs_config_data,
1656 return -1);
1657
1658 if (!config->winattr) {
1659 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1660 }
1661
1662 status = get_full_smb_filename(talloc_tos(), fname, &path);
1663 if (!NT_STATUS_IS_OK(status)) {
1664 errno = map_errno_from_nt_status(status);
1665 return -1;
1666 }
1667
1668 ret = get_gpfs_winattrs(path, &attrs);
1669 if (ret == -1) {
1670 TALLOC_FREE(path);
1671 return false;
1672 }
1673
1674 if ((attrs.winAttrs & GPFS_WINATTR_OFFLINE) != 0) {
1675 DEBUG(10, ("%s is offline\n", path));
1676 TALLOC_FREE(path);
1677 return true;
1678 }
1679 DEBUG(10, ("%s is online\n", path));
1680 TALLOC_FREE(path);
1681 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1682 }
1683
1684 static bool vfs_gpfs_aio_force(struct vfs_handle_struct *handle,
1685 struct files_struct *fsp)
1686 {
1687 return vfs_gpfs_is_offline(handle, fsp->fsp_name, &fsp->fsp_name->st);
1688 }
1689
1690 static ssize_t vfs_gpfs_sendfile(vfs_handle_struct *handle, int tofd,
1691 files_struct *fsp, const DATA_BLOB *hdr,
1692 off_t offset, size_t n)
1693 {
1694 if (SMB_VFS_IS_OFFLINE(handle->conn, fsp->fsp_name, &fsp->fsp_name->st))
1695 {
1696 errno = ENOSYS;
1697 return -1;
1698 }
1699 return SMB_VFS_NEXT_SENDFILE(handle, tofd, fsp, hdr, offset, n);
1700 }
1701
1702 static int vfs_gpfs_connect(struct vfs_handle_struct *handle,
1703 const char *service, const char *user)
1704 {
1705 struct gpfs_config_data *config;
1706 int ret;
1707
1708 smbd_gpfs_lib_init();
1709
1710 config = talloc_zero(handle->conn, struct gpfs_config_data);
1711 if (!config) {
1712 DEBUG(0, ("talloc_zero() failed\n"));
1713 errno = ENOMEM;
1714 return -1;
1715 }
1716
1717 ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
1718 if (ret < 0) {
1719 TALLOC_FREE(config);
1720 return ret;
1721 }
1722
1723 config->sharemodes = lp_parm_bool(SNUM(handle->conn), "gpfs",
1724 "sharemodes", true);
1725
1726 config->leases = lp_parm_bool(SNUM(handle->conn), "gpfs",
1727 "leases", true);
1728
1729 config->hsm = lp_parm_bool(SNUM(handle->conn), "gpfs",
1730 "hsm", false);
1731
1732 config->syncio = lp_parm_bool(SNUM(handle->conn), "gpfs",
1733 "syncio", false);
1734
1735 config->winattr = lp_parm_bool(SNUM(handle->conn), "gpfs",
1736 "winattr", false);
1737
1738 config->ftruncate = lp_parm_bool(SNUM(handle->conn), "gpfs",
1739 "ftruncate", true);
1740
1741 config->getrealfilename = lp_parm_bool(SNUM(handle->conn), "gpfs",
1742 "getrealfilename", true);
1743
1744 config->dfreequota = lp_parm_bool(SNUM(handle->conn), "gpfs",
1745 "dfreequota", false);
1746
1747 config->prealloc = lp_parm_bool(SNUM(handle->conn), "gpfs",
1748 "prealloc", true);
1749
1750 config->acl = lp_parm_bool(SNUM(handle->conn), "gpfs", "acl", true);
1751
1752 SMB_VFS_HANDLE_SET_DATA(handle, config,
1753 NULL, struct gpfs_config_data,
1754 return -1);
1755
1756 if (config->leases) {
1757 /*
1758 * GPFS lease code is based on kernel oplock code
1759 * so make sure it is turned on
1760 */
1761 if (!lp_kernel_oplocks(SNUM(handle->conn))) {
1762 DEBUG(5, ("Enabling kernel oplocks for "
1763 "gpfs:leases to work\n"));
1764 lp_do_parameter(SNUM(handle->conn), "kernel oplocks",
1765 "true");
1766 }
1767
1768 /*
1769 * as the kernel does not properly support Level II oplocks
1770 * and GPFS leases code is based on kernel infrastructure, we
1771 * need to turn off Level II oplocks if gpfs:leases is enabled
1772 */
1773 if (lp_level2_oplocks(SNUM(handle->conn))) {
1774 DEBUG(5, ("gpfs:leases are enabled, disabling "
1775 "Level II oplocks\n"));
1776 lp_do_parameter(SNUM(handle->conn), "level2 oplocks",
1777 "false");
1778 }
1779 }
1780
1781 return 0;
1782 }
1783
1784 static int vfs_gpfs_get_quotas(const char *path, uid_t uid, gid_t gid,
1785 int *fset_id,
1786 struct gpfs_quotaInfo *qi_user,
1787 struct gpfs_quotaInfo *qi_group,
1788 struct gpfs_quotaInfo *qi_fset)
1789 {
1790 int err;
1791 char *dir_path;
1792 bool b;
1793
1794 /*
1795 * We want to always use the directory to get the fileset id,
1796 * because files might have a share mode. We also do not want
1797 * to get the parent directory when there is already a
1798 * directory to avoid stepping in a different fileset. The
1799 * path passed here is currently either "." or a filename, so
1800 * this is ok. The proper solution would be having a way to
1801 * query the fileset id without opening the file.
1802 */
1803 b = parent_dirname(talloc_tos(), path, &dir_path, NULL);
1804 if (!b) {
1805 errno = ENOMEM;
1806 return -1;
1807 }
1808
1809 DEBUG(10, ("path %s, directory %s\n", path, dir_path));
1810
1811 err = get_gpfs_fset_id(dir_path, fset_id);
1812 if (err) {
1813 DEBUG(0, ("Get fset id failed path %s, dir %s, errno %d.\n",
1814 path, dir_path, errno));
1815 return err;
1816 }
1817
1818 err = get_gpfs_quota(path, GPFS_USRQUOTA, uid, qi_user);
1819 if (err) {
1820 return err;
1821 }
1822
1823 err = get_gpfs_quota(path, GPFS_GRPQUOTA, gid, qi_group);
1824 if (err) {
1825 return err;
1826 }
1827
1828 err = get_gpfs_quota(path, GPFS_FILESETQUOTA, *fset_id, qi_fset);
1829 if (err) {
1830 return err;
1831 }
1832
1833 return 0;
1834 }
1835
1836 static void vfs_gpfs_disk_free_quota(struct gpfs_quotaInfo qi, time_t cur_time,
1837 uint64_t *dfree, uint64_t *dsize)
1838 {
1839 uint64_t usage, limit;
1840
1841 /*
1842 * The quota reporting is done in units of 1024 byte blocks, but
1843 * sys_fsusage uses units of 512 byte blocks, adjust the block number
1844 * accordingly. Also filter possibly negative usage counts from gpfs.
1845 */
1846 usage = qi.blockUsage < 0 ? 0 : (uint64_t)qi.blockUsage * 2;
1847 limit = (uint64_t)qi.blockHardLimit * 2;
1848
1849 /*
1850 * When the grace time for the exceeded soft block quota has been
1851 * exceeded, the soft block quota becomes an additional hard limit.
1852 */
1853 if (qi.blockSoftLimit &&
1854 qi.blockGraceTime && cur_time > qi.blockGraceTime) {
1855 /* report disk as full */
1856 *dfree = 0;
1857 *dsize = MIN(*dsize, usage);
1858 }
1859
1860 if (!qi.blockHardLimit)
1861 return;
1862
1863 if (usage >= limit) {
1864 /* report disk as full */
1865 *dfree = 0;
1866 *dsize = MIN(*dsize, usage);
1867
1868 } else {
1869 /* limit has not been reached, determine "free space" */
1870 *dfree = MIN(*dfree, limit - usage);
1871 *dsize = MIN(*dsize, limit);
1872 }
1873 }
1874
1875 static uint64_t vfs_gpfs_disk_free(vfs_handle_struct *handle, const char *path,
1876 bool small_query, uint64_t *bsize,
1877 uint64_t *dfree, uint64_t *dsize)
1878 {
1879 struct security_unix_token *utok;
1880 struct gpfs_quotaInfo qi_user, qi_group, qi_fset;
1881 struct gpfs_config_data *config;
1882 int err, fset_id;
1883 time_t cur_time;
1884
1885 SMB_VFS_HANDLE_GET_DATA(handle, config, struct gpfs_config_data,
1886 return (uint64_t)-1);
1887 if (!config->dfreequota) {
1888 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1889 bsize, dfree, dsize);
1890 }
1891
1892 err = sys_fsusage(path, dfree, dsize);
1893 if (err) {
1894 DEBUG (0, ("Could not get fs usage, errno %d\n", errno));
1895 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1896 bsize, dfree, dsize);
1897 }
1898
1899 /* sys_fsusage returns units of 512 bytes */
1900 *bsize = 512;
1901
1902 DEBUG(10, ("fs dfree %llu, dsize %llu\n",
1903 (unsigned long long)*dfree, (unsigned long long)*dsize));
1904
1905 utok = handle->conn->session_info->unix_token;
1906 err = vfs_gpfs_get_quotas(path, utok->uid, utok->gid, &fset_id,
1907 &qi_user, &qi_group, &qi_fset);
1908 if (err) {
1909 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1910 bsize, dfree, dsize);
1911 }
1912
1913 cur_time = time(NULL);
1914
1915 /* Adjust free space and size according to quota limits. */
1916 vfs_gpfs_disk_free_quota(qi_user, cur_time, dfree, dsize);
1917 vfs_gpfs_disk_free_quota(qi_group, cur_time, dfree, dsize);
1918
1919 /* Id 0 indicates the default quota, not an actual quota */
1920 if (fset_id != 0) {
1921 vfs_gpfs_disk_free_quota(qi_fset, cur_time, dfree, dsize);
1922 }
1923
1924 disk_norm(small_query, bsize, dfree, dsize);
1925 return *dfree;
1926 }
1927
1928 static uint32_t vfs_gpfs_capabilities(struct vfs_handle_struct *handle,
1929 enum timestamp_set_resolution *p_ts_res)
1930 {
1931 struct gpfs_config_data *config;
1932 uint32_t next;
1933
1934 next = SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
1935
1936 SMB_VFS_HANDLE_GET_DATA(handle, config,
1937 struct gpfs_config_data,
1938 return next);
1939
1940 if (config->hsm) {
1941 next |= FILE_SUPPORTS_REMOTE_STORAGE;
1942 }
1943 return next;
1944 }
1945
1946 static int vfs_gpfs_open(struct vfs_handle_struct *handle,
1947 struct smb_filename *smb_fname, files_struct *fsp,
1948 int flags, mode_t mode)
1949 {
1950 struct gpfs_config_data *config;
1951
1952 SMB_VFS_HANDLE_GET_DATA(handle, config,
1953 struct gpfs_config_data,
1954 return -1);
1955
1956 if (config->syncio) {
1957 flags |= O_SYNC;
1958 }
1959 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1960 }
1961
1962 static ssize_t vfs_gpfs_pread(vfs_handle_struct *handle, files_struct *fsp,
1963 void *data, size_t n, off_t offset)
1964 {
1965 ssize_t ret;
1966 bool was_offline;
1967
1968 was_offline = SMB_VFS_IS_OFFLINE(handle->conn, fsp->fsp_name,
1969 &fsp->fsp_name->st);
1970
1971 ret = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
1972
1973 if ((ret != -1) && was_offline) {
1974 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
1975 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1976 fsp->fsp_name->base_name);
1977 }
1978
1979 return ret;
1980 }
1981
1982 struct vfs_gpfs_pread_state {
1983 struct files_struct *fsp;
1984 ssize_t ret;
1985 int err;
1986 bool was_offline;
1987 };
1988
1989 static void vfs_gpfs_pread_done(struct tevent_req *subreq);
1990
1991 static struct tevent_req *vfs_gpfs_pread_send(struct vfs_handle_struct *handle,
1992 TALLOC_CTX *mem_ctx,
1993 struct tevent_context *ev,
1994 struct files_struct *fsp,
1995 void *data, size_t n,
1996 off_t offset)
1997 {
1998 struct tevent_req *req, *subreq;
1999 struct vfs_gpfs_pread_state *state;
2000
2001 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pread_state);
2002 if (req == NULL) {
2003 return NULL;
2004 }
2005 state->was_offline = SMB_VFS_IS_OFFLINE(handle->conn, fsp->fsp_name,
2006 &fsp->fsp_name->st);
2007 state->fsp = fsp;
2008 subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
2009 n, offset);
2010 if (tevent_req_nomem(subreq, req)) {
2011 return tevent_req_post(req, ev);
2012 }
2013 tevent_req_set_callback(subreq, vfs_gpfs_pread_done, req);
2014 return req;
2015 }
2016
2017 static void vfs_gpfs_pread_done(struct tevent_req *subreq)
2018 {
2019 struct tevent_req *req = tevent_req_callback_data(
2020 subreq, struct tevent_req);
2021 struct vfs_gpfs_pread_state *state = tevent_req_data(
2022 req, struct vfs_gpfs_pread_state);
2023
2024 state->ret = SMB_VFS_PREAD_RECV(subreq, &state->err);
2025 TALLOC_FREE(subreq);
2026 tevent_req_done(req);
2027 }
2028
2029 static ssize_t vfs_gpfs_pread_recv(struct tevent_req *req, int *err)
2030 {
2031 struct vfs_gpfs_pread_state *state = tevent_req_data(
2032 req, struct vfs_gpfs_pread_state);
2033 struct files_struct *fsp = state->fsp;
2034
2035 if (tevent_req_is_unix_error(req, err)) {
2036 return -1;
2037 }
2038 *err = state->err;
2039
2040 if ((state->ret != -1) && state->was_offline) {
2041 DEBUG(10, ("sending notify\n"));
2042 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
2043 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2044 fsp->fsp_name->base_name);
2045 }
2046
2047 return state->ret;
2048 }
2049
2050 static ssize_t vfs_gpfs_pwrite(vfs_handle_struct *handle, files_struct *fsp,
2051 const void *data, size_t n, off_t offset)
2052 {
2053 ssize_t ret;
2054 bool was_offline;
2055
2056 was_offline = SMB_VFS_IS_OFFLINE(handle->conn, fsp->fsp_name,
2057 &fsp->fsp_name->st);
2058
2059 ret = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2060
2061 if ((ret != -1) && was_offline) {
2062 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
2063 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2064 fsp->fsp_name->base_name);
2065 }
2066
2067 return ret;
2068 }
2069
2070 struct vfs_gpfs_pwrite_state {
2071 struct files_struct *fsp;
2072 ssize_t ret;
2073 int err;
2074 bool was_offline;
2075 };
2076
2077 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq);
2078
2079 static struct tevent_req *vfs_gpfs_pwrite_send(
2080 struct vfs_handle_struct *handle,
2081 TALLOC_CTX *mem_ctx,
2082 struct tevent_context *ev,
2083 struct files_struct *fsp,
2084 const void *data, size_t n,
2085 off_t offset)
2086 {
2087 struct tevent_req *req, *subreq;
2088 struct vfs_gpfs_pwrite_state *state;
2089
2090 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pwrite_state);
2091 if (req == NULL) {
2092 return NULL;
2093 }
2094 state->was_offline = SMB_VFS_IS_OFFLINE(handle->conn, fsp->fsp_name,
2095 &fsp->fsp_name->st);
2096 state->fsp = fsp;
2097 subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
2098 n, offset);
2099 if (tevent_req_nomem(subreq, req)) {
2100 return tevent_req_post(req, ev);
2101 }
2102 tevent_req_set_callback(subreq, vfs_gpfs_pwrite_done, req);
2103 return req;
2104 }
2105
2106 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq)
2107 {
2108 struct tevent_req *req = tevent_req_callback_data(
2109 subreq, struct tevent_req);
2110 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
2111 req, struct vfs_gpfs_pwrite_state);
2112
2113 state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->err);
2114 TALLOC_FREE(subreq);
2115 tevent_req_done(req);
2116 }
2117
2118 static ssize_t vfs_gpfs_pwrite_recv(struct tevent_req *req, int *err)
2119 {
2120 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
2121 req, struct vfs_gpfs_pwrite_state);
2122 struct files_struct *fsp = state->fsp;
2123
2124 if (tevent_req_is_unix_error(req, err)) {
2125 return -1;
2126 }
2127 *err = state->err;
2128
2129 if ((state->ret != -1) && state->was_offline) {
2130 DEBUG(10, ("sending notify\n"));
2131 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
2132 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2133 fsp->fsp_name->base_name);
2134 }
2135
2136 return state->ret;
2137 }
2138
2139
2140 static struct vfs_fn_pointers vfs_gpfs_fns = {
2141 .connect_fn = vfs_gpfs_connect,
2142 .disk_free_fn = vfs_gpfs_disk_free,
2143 .fs_capabilities_fn = vfs_gpfs_capabilities,
2144 .kernel_flock_fn = vfs_gpfs_kernel_flock,
2145 .linux_setlease_fn = vfs_gpfs_setlease,
2146 .get_real_filename_fn = vfs_gpfs_get_real_filename,
2147 .fget_nt_acl_fn = gpfsacl_fget_nt_acl,
2148 .get_nt_acl_fn = gpfsacl_get_nt_acl,
2149 .fset_nt_acl_fn = gpfsacl_fset_nt_acl,
2150 .sys_acl_get_file_fn = gpfsacl_sys_acl_get_file,
2151 .sys_acl_get_fd_fn = gpfsacl_sys_acl_get_fd,
2152 .sys_acl_blob_get_file_fn = gpfsacl_sys_acl_blob_get_file,
2153 .sys_acl_blob_get_fd_fn = gpfsacl_sys_acl_blob_get_fd,
2154 .sys_acl_set_file_fn = gpfsacl_sys_acl_set_file,
2155 .sys_acl_set_fd_fn = gpfsacl_sys_acl_set_fd,
2156 .sys_acl_delete_def_file_fn = gpfsacl_sys_acl_delete_def_file,
2157 .chmod_fn = vfs_gpfs_chmod,
2158 .fchmod_fn = vfs_gpfs_fchmod,
2159 .close_fn = vfs_gpfs_close,
2160 .setxattr_fn = gpfs_set_xattr,
2161 .getxattr_fn = gpfs_get_xattr,
2162 .stat_fn = vfs_gpfs_stat,
2163 .fstat_fn = vfs_gpfs_fstat,
2164 .lstat_fn = vfs_gpfs_lstat,
2165 .ntimes_fn = vfs_gpfs_ntimes,
2166 .is_offline_fn = vfs_gpfs_is_offline,
2167 .aio_force_fn = vfs_gpfs_aio_force,
2168 .sendfile_fn = vfs_gpfs_sendfile,
2169 .fallocate_fn = vfs_gpfs_fallocate,
2170 .open_fn = vfs_gpfs_open,
2171 .pread_fn = vfs_gpfs_pread,
2172 .pread_send_fn = vfs_gpfs_pread_send,
2173 .pread_recv_fn = vfs_gpfs_pread_recv,
2174 .pwrite_fn = vfs_gpfs_pwrite,
2175 .pwrite_send_fn = vfs_gpfs_pwrite_send,
2176 .pwrite_recv_fn = vfs_gpfs_pwrite_recv,
2177 .ftruncate_fn = vfs_gpfs_ftruncate
2178 };
2179
2180 NTSTATUS vfs_gpfs_init(void);
2181 NTSTATUS vfs_gpfs_init(void)
2182 {
2183 init_gpfs();
2184
2185 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
2186 &vfs_gpfs_fns);
2187 }
Samba GIT mirror