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smbd: Convert open_np_file to synthetic_smb_fname
[Samba/bjacke.git] / source3 / modules / vfs_gpfs.c
blob674e101c5837186b6850ee176c6bdd2fd7e6e461
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 START_PROFILE(syscall_kernel_flock);
70
71 kernel_flock(fsp->fh->fd, share_mode, access_mask);
72
73 if (!set_gpfs_sharemode(fsp, access_mask, fsp->share_access)) {
74 ret = -1;
75 }
76
77 END_PROFILE(syscall_kernel_flock);
78
79 return ret;
80 }
81
82 static int vfs_gpfs_close(vfs_handle_struct *handle, files_struct *fsp)
83 {
84
85 struct gpfs_config_data *config;
86
87 SMB_VFS_HANDLE_GET_DATA(handle, config,
88 struct gpfs_config_data,
89 return -1);
90
91 if (config->sharemodes && (fsp->fh != NULL) && (fsp->fh->fd != -1)) {
92 set_gpfs_sharemode(fsp, 0, 0);
93 }
94
95 return SMB_VFS_NEXT_CLOSE(handle, fsp);
96 }
97
98 static int vfs_gpfs_setlease(vfs_handle_struct *handle, files_struct *fsp,
99 int leasetype)
100 {
101 struct gpfs_config_data *config;
102 int ret=0;
103
104 SMB_VFS_HANDLE_GET_DATA(handle, config,
105 struct gpfs_config_data,
106 return -1);
107
108 if (linux_set_lease_sighandler(fsp->fh->fd) == -1)
109 return -1;
110
111 START_PROFILE(syscall_linux_setlease);
112
113 if (config->leases) {
114 ret = set_gpfs_lease(fsp->fh->fd,leasetype);
115 }
116
117 END_PROFILE(syscall_linux_setlease);
118
119 return ret;
120 }
121
122 static int vfs_gpfs_get_real_filename(struct vfs_handle_struct *handle,
123 const char *path,
124 const char *name,
125 TALLOC_CTX *mem_ctx,
126 char **found_name)
127 {
128 int result;
129 char *full_path;
130 char real_pathname[PATH_MAX+1];
131 int buflen;
132 bool mangled;
133 struct gpfs_config_data *config;
134
135 SMB_VFS_HANDLE_GET_DATA(handle, config,
136 struct gpfs_config_data,
137 return -1);
138
139 if (!config->getrealfilename) {
140 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
141 mem_ctx, found_name);
142 }
143
144 mangled = mangle_is_mangled(name, handle->conn->params);
145 if (mangled) {
146 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
147 mem_ctx, found_name);
148 }
149
150 full_path = talloc_asprintf(talloc_tos(), "%s/%s", path, name);
151 if (full_path == NULL) {
152 errno = ENOMEM;
153 return -1;
154 }
155
156 buflen = sizeof(real_pathname) - 1;
157
158 result = smbd_gpfs_get_realfilename_path(full_path, real_pathname,
159 &buflen);
160
161 TALLOC_FREE(full_path);
162
163 if ((result == -1) && (errno == ENOSYS)) {
164 return SMB_VFS_NEXT_GET_REAL_FILENAME(
165 handle, path, name, mem_ctx, found_name);
166 }
167
168 if (result == -1) {
169 DEBUG(10, ("smbd_gpfs_get_realfilename_path returned %s\n",
170 strerror(errno)));
171 return -1;
172 }
173
174 /*
175 * GPFS does not necessarily null-terminate the returned path
176 * but instead returns the buffer length in buflen.
177 */
178
179 if (buflen < sizeof(real_pathname)) {
180 real_pathname[buflen] = '\0';
181 } else {
182 real_pathname[sizeof(real_pathname)-1] = '\0';
183 }
184
185 DEBUG(10, ("smbd_gpfs_get_realfilename_path: %s/%s -> %s\n",
186 path, name, real_pathname));
187
188 name = strrchr_m(real_pathname, '/');
189 if (name == NULL) {
190 errno = ENOENT;
191 return -1;
192 }
193
194 *found_name = talloc_strdup(mem_ctx, name+1);
195 if (*found_name == NULL) {
196 errno = ENOMEM;
197 return -1;
198 }
199
200 return 0;
201 }
202
203 static void gpfs_dumpacl(int level, struct gpfs_acl *gacl)
204 {
205 gpfs_aclCount_t i;
206 if (gacl==NULL)
207 {
208 DEBUG(0, ("gpfs acl is NULL\n"));
209 return;
210 }
211
212 DEBUG(level, ("gpfs acl: nace: %d, type:%d, version:%d, level:%d, len:%d\n",
213 gacl->acl_nace, gacl->acl_type, gacl->acl_version, gacl->acl_level, gacl->acl_len));
214 for(i=0; i<gacl->acl_nace; i++)
215 {
216 struct gpfs_ace_v4 *gace = gacl->ace_v4 + i;
217 DEBUG(level, ("\tace[%d]: type:%d, flags:0x%x, mask:0x%x, iflags:0x%x, who:%u\n",
218 i, gace->aceType, gace->aceFlags, gace->aceMask,
219 gace->aceIFlags, gace->aceWho));
220 }
221 }
222
223 /*
224 * get the ACL from GPFS, allocated on the specified mem_ctx
225 * internally retries when initial buffer was too small
226 *
227 * caller needs to cast result to either
228 * raw = yes: struct gpfs_opaque_acl
229 * raw = no: struct gpfs_acl
230 *
231 */
232 static void *vfs_gpfs_getacl(TALLOC_CTX *mem_ctx,
233 const char *fname,
234 const bool raw,
235 const gpfs_aclType_t type)
236 {
237
238 void *aclbuf;
239 size_t size = 512;
240 int ret, flags;
241 unsigned int *len;
242 size_t struct_size;
243
244 again:
245
246 aclbuf = talloc_zero_size(mem_ctx, size);
247 if (aclbuf == NULL) {
248 errno = ENOMEM;
249 return NULL;
250 }
251
252 if (raw) {
253 struct gpfs_opaque_acl *buf = (struct gpfs_opaque_acl *) aclbuf;
254 buf->acl_type = type;
255 flags = GPFS_GETACL_NATIVE;
256 len = (unsigned int *) &(buf->acl_buffer_len);
257 struct_size = sizeof(struct gpfs_opaque_acl);
258 } else {
259 struct gpfs_acl *buf = (struct gpfs_acl *) aclbuf;
260 buf->acl_type = type;
261 flags = GPFS_GETACL_STRUCT;
262 len = &(buf->acl_len);
263 struct_size = sizeof(struct gpfs_acl);
264 }
265
266 /* set the length of the buffer as input value */
267 *len = size;
268
269 errno = 0;
270 ret = smbd_gpfs_getacl((char *)fname, flags, aclbuf);
271 if ((ret != 0) && (errno == ENOSPC)) {
272 /*
273 * get the size needed to accommodate the complete buffer
274 *
275 * the value returned only applies to the ACL blob in the
276 * struct so make sure to also have headroom for the first
277 * struct members by adding room for the complete struct
278 * (might be a few bytes too much then)
279 */
280 size = *len + struct_size;
281 talloc_free(aclbuf);
282 DEBUG(10, ("Increasing ACL buffer size to %zu\n", size));
283 goto again;
284 }
285
286 if (ret != 0) {
287 DEBUG(5, ("smbd_gpfs_getacl failed with %s\n",
288 strerror(errno)));
289 talloc_free(aclbuf);
290 return NULL;
291 }
292
293 return aclbuf;
294 }
295
296 /* Tries to get nfs4 acls and returns SMB ACL allocated.
297 * On failure returns 1 if it got non-NFSv4 ACL to prompt
298 * retry with POSIX ACL checks.
299 * On failure returns -1 if there is system (GPFS) error, check errno.
300 * Returns 0 on success
301 */
302 static int gpfs_get_nfs4_acl(const char *fname, SMB4ACL_T **ppacl)
303 {
304 gpfs_aclCount_t i;
305 struct gpfs_acl *gacl = NULL;
306 DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname));
307
308 /* Get the ACL */
309 gacl = (struct gpfs_acl*) vfs_gpfs_getacl(talloc_tos(), fname,
310 false, 0);
311 if (gacl == NULL) {
312 DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
313 fname, strerror(errno)));
314 return -1;
315 }
316
317 if (gacl->acl_type != GPFS_ACL_TYPE_NFS4) {
318 DEBUG(10, ("Got non-nfsv4 acl\n"));
319 /* Retry with POSIX ACLs check */
320 talloc_free(gacl);
321 return 1;
322 }
323
324 *ppacl = smb_create_smb4acl();
325
326 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
327 gacl->acl_len, gacl->acl_level, gacl->acl_version,
328 gacl->acl_nace));
329
330 for (i=0; i<gacl->acl_nace; i++) {
331 struct gpfs_ace_v4 *gace = &gacl->ace_v4[i];
332 SMB_ACE4PROP_T smbace;
333 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
334 "who: %d\n", gace->aceType, gace->aceIFlags,
335 gace->aceFlags, gace->aceMask, gace->aceWho));
336
337 ZERO_STRUCT(smbace);
338 if (gace->aceIFlags & ACE4_IFLAG_SPECIAL_ID) {
339 smbace.flags |= SMB_ACE4_ID_SPECIAL;
340 switch (gace->aceWho) {
341 case ACE4_SPECIAL_OWNER:
342 smbace.who.special_id = SMB_ACE4_WHO_OWNER;
343 break;
344 case ACE4_SPECIAL_GROUP:
345 smbace.who.special_id = SMB_ACE4_WHO_GROUP;
346 break;
347 case ACE4_SPECIAL_EVERYONE:
348 smbace.who.special_id = SMB_ACE4_WHO_EVERYONE;
349 break;
350 default:
351 DEBUG(8, ("invalid special gpfs id %d "
352 "ignored\n", gace->aceWho));
353 continue; /* don't add it */
354 }
355 } else {
356 if (gace->aceFlags & ACE4_FLAG_GROUP_ID)
357 smbace.who.gid = gace->aceWho;
358 else
359 smbace.who.uid = gace->aceWho;
360 }
361
362 /* remove redundant deny entries */
363 if (i > 0 && gace->aceType == SMB_ACE4_ACCESS_DENIED_ACE_TYPE) {
364 struct gpfs_ace_v4 *prev = &gacl->ace_v4[i-1];
365 if (prev->aceType == SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE &&
366 prev->aceFlags == gace->aceFlags &&
367 prev->aceIFlags == gace->aceIFlags &&
368 (gace->aceMask & prev->aceMask) == 0 &&
369 gace->aceWho == prev->aceWho) {
370 /* it's redundant - skip it */
371 continue;
372 }
373 }
374
375 smbace.aceType = gace->aceType;
376 smbace.aceFlags = gace->aceFlags;
377 smbace.aceMask = gace->aceMask;
378 smb_add_ace4(*ppacl, &smbace);
379 }
380
381 talloc_free(gacl);
382
383 return 0;
384 }
385
386 static NTSTATUS gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
387 files_struct *fsp, uint32 security_info,
388 TALLOC_CTX *mem_ctx,
389 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_FGET_NT_ACL(handle, fsp, security_info,
403 mem_ctx, ppdesc);
404 }
405
406 result = gpfs_get_nfs4_acl(fsp->fsp_name->base_name, &pacl);
407
408 if (result == 0)
409 return smb_fget_nt_acl_nfs4(fsp, security_info, mem_ctx, ppdesc, pacl);
410
411 if (result > 0) {
412 DEBUG(10, ("retrying with posix acl...\n"));
413 return posix_fget_nt_acl(fsp, security_info, mem_ctx, ppdesc);
414 }
415
416 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
417 return map_nt_error_from_unix(errno);
418 }
419
420 static NTSTATUS gpfsacl_get_nt_acl(vfs_handle_struct *handle,
421 const char *name,
422 uint32 security_info,
423 TALLOC_CTX *mem_ctx, struct security_descriptor **ppdesc)
424 {
425 SMB4ACL_T *pacl = NULL;
426 int result;
427 struct gpfs_config_data *config;
428
429 *ppdesc = NULL;
430
431 SMB_VFS_HANDLE_GET_DATA(handle, config,
432 struct gpfs_config_data,
433 return NT_STATUS_INTERNAL_ERROR);
434
435 if (!config->acl) {
436 return SMB_VFS_NEXT_GET_NT_ACL(handle, name, security_info,
437 mem_ctx, ppdesc);
438 }
439
440 result = gpfs_get_nfs4_acl(name, &pacl);
441
442 if (result == 0)
443 return smb_get_nt_acl_nfs4(handle->conn, name, security_info,
444 mem_ctx, ppdesc, pacl);
445
446 if (result > 0) {
447 DEBUG(10, ("retrying with posix acl...\n"));
448 return posix_get_nt_acl(handle->conn, name, security_info,
449 mem_ctx, ppdesc);
450 }
451
452 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
453 return map_nt_error_from_unix(errno);
454 }
455
456 static bool gpfsacl_process_smbacl(files_struct *fsp, SMB4ACL_T *smbacl)
457 {
458 int ret;
459 gpfs_aclLen_t gacl_len;
460 SMB4ACE_T *smbace;
461 struct gpfs_acl *gacl;
462 TALLOC_CTX *mem_ctx = talloc_tos();
463
464 gacl_len = offsetof(gpfs_acl_t, ace_v4) + smb_get_naces(smbacl) *
465 sizeof(gpfs_ace_v4_t);
466
467 gacl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, gacl_len);
468 if (gacl == NULL) {
469 DEBUG(0, ("talloc failed\n"));
470 errno = ENOMEM;
471 return False;
472 }
473
474 gacl->acl_len = gacl_len;
475 gacl->acl_level = 0;
476 gacl->acl_version = GPFS_ACL_VERSION_NFS4;
477 gacl->acl_type = GPFS_ACL_TYPE_NFS4;
478 gacl->acl_nace = 0; /* change later... */
479
480 for (smbace=smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
481 struct gpfs_ace_v4 *gace = &gacl->ace_v4[gacl->acl_nace];
482 SMB_ACE4PROP_T *aceprop = smb_get_ace4(smbace);
483
484 gace->aceType = aceprop->aceType;
485 gace->aceFlags = aceprop->aceFlags;
486 gace->aceMask = aceprop->aceMask;
487
488 /*
489 * GPFS can't distinguish between WRITE and APPEND on
490 * files, so one being set without the other is an
491 * error. Sorry for the many ()'s :-)
492 */
493
494 if (!fsp->is_directory
495 &&
496 ((((gace->aceMask & ACE4_MASK_WRITE) == 0)
497 && ((gace->aceMask & ACE4_MASK_APPEND) != 0))
498 ||
499 (((gace->aceMask & ACE4_MASK_WRITE) != 0)
500 && ((gace->aceMask & ACE4_MASK_APPEND) == 0)))
501 &&
502 lp_parm_bool(fsp->conn->params->service, "gpfs",
503 "merge_writeappend", True)) {
504 DEBUG(2, ("vfs_gpfs.c: file [%s]: ACE contains "
505 "WRITE^APPEND, setting WRITE|APPEND\n",
506 fsp_str_dbg(fsp)));
507 gace->aceMask |= ACE4_MASK_WRITE|ACE4_MASK_APPEND;
508 }
509
510 gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
511
512 if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
513 {
514 switch(aceprop->who.special_id)
515 {
516 case SMB_ACE4_WHO_EVERYONE:
517 gace->aceWho = ACE4_SPECIAL_EVERYONE;
518 break;
519 case SMB_ACE4_WHO_OWNER:
520 gace->aceWho = ACE4_SPECIAL_OWNER;
521 break;
522 case SMB_ACE4_WHO_GROUP:
523 gace->aceWho = ACE4_SPECIAL_GROUP;
524 break;
525 default:
526 DEBUG(8, ("unsupported special_id %d\n", aceprop->who.special_id));
527 continue; /* don't add it !!! */
528 }
529 } else {
530 /* just only for the type safety... */
531 if (aceprop->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
532 gace->aceWho = aceprop->who.gid;
533 else
534 gace->aceWho = aceprop->who.uid;
535 }
536
537 gacl->acl_nace++;
538 }
539
540 ret = smbd_gpfs_putacl(fsp->fsp_name->base_name,
541 GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gacl);
542 if (ret != 0) {
543 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno)));
544 gpfs_dumpacl(8, gacl);
545 return False;
546 }
547
548 DEBUG(10, ("gpfs_putacl succeeded\n"));
549 return True;
550 }
551
552 static NTSTATUS gpfsacl_set_nt_acl_internal(files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
553 {
554 struct gpfs_acl *acl;
555 NTSTATUS result = NT_STATUS_ACCESS_DENIED;
556
557 acl = (struct gpfs_acl*) vfs_gpfs_getacl(talloc_tos(),
558 fsp->fsp_name->base_name,
559 false, 0);
560 if (acl == NULL) {
561 return map_nt_error_from_unix(errno);
562 }
563
564 if (acl->acl_version == GPFS_ACL_VERSION_NFS4) {
565 if (lp_parm_bool(fsp->conn->params->service, "gpfs",
566 "refuse_dacl_protected", false)
567 && (psd->type&SEC_DESC_DACL_PROTECTED)) {
568 DEBUG(2, ("Rejecting unsupported ACL with DACL_PROTECTED bit set\n"));
569 talloc_free(acl);
570 return NT_STATUS_NOT_SUPPORTED;
571 }
572
573 result = smb_set_nt_acl_nfs4(
574 fsp, security_info_sent, psd,
575 gpfsacl_process_smbacl);
576 } else { /* assume POSIX ACL - by default... */
577 result = set_nt_acl(fsp, security_info_sent, psd);
578 }
579
580 talloc_free(acl);
581 return result;
582 }
583
584 static NTSTATUS gpfsacl_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
585 {
586 struct gpfs_config_data *config;
587
588 SMB_VFS_HANDLE_GET_DATA(handle, config,
589 struct gpfs_config_data,
590 return NT_STATUS_INTERNAL_ERROR);
591
592 if (!config->acl) {
593 return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
594 }
595
596 return gpfsacl_set_nt_acl_internal(fsp, security_info_sent, psd);
597 }
598
599 static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl, TALLOC_CTX *mem_ctx)
600 {
601 SMB_ACL_T result;
602 gpfs_aclCount_t i;
603
604 result = sys_acl_init(mem_ctx);
605 if (result == NULL) {
606 errno = ENOMEM;
607 return NULL;
608 }
609
610 result->count = pacl->acl_nace;
611 result->acl = talloc_realloc(result, result->acl, struct smb_acl_entry,
612 result->count);
613 if (result->acl == NULL) {
614 TALLOC_FREE(result);
615 errno = ENOMEM;
616 return NULL;
617 }
618
619 for (i=0; i<pacl->acl_nace; i++) {
620 struct smb_acl_entry *ace = &result->acl[i];
621 const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
622
623 DEBUG(10, ("Converting type %d id %lu perm %x\n",
624 (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
625 (int)g_ace->ace_perm));
626
627 switch (g_ace->ace_type) {
628 case GPFS_ACL_USER:
629 ace->a_type = SMB_ACL_USER;
630 ace->info.user.uid = (uid_t)g_ace->ace_who;
631 break;
632 case GPFS_ACL_USER_OBJ:
633 ace->a_type = SMB_ACL_USER_OBJ;
634 break;
635 case GPFS_ACL_GROUP:
636 ace->a_type = SMB_ACL_GROUP;
637 ace->info.group.gid = (gid_t)g_ace->ace_who;
638 break;
639 case GPFS_ACL_GROUP_OBJ:
640 ace->a_type = SMB_ACL_GROUP_OBJ;
641 break;
642 case GPFS_ACL_OTHER:
643 ace->a_type = SMB_ACL_OTHER;
644 break;
645 case GPFS_ACL_MASK:
646 ace->a_type = SMB_ACL_MASK;
647 break;
648 default:
649 DEBUG(10, ("Got invalid ace_type: %d\n",
650 g_ace->ace_type));
651 TALLOC_FREE(result);
652 errno = EINVAL;
653 return NULL;
654 }
655
656 ace->a_perm = 0;
657 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
658 SMB_ACL_READ : 0;
659 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
660 SMB_ACL_WRITE : 0;
661 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
662 SMB_ACL_EXECUTE : 0;
663
664 DEBUGADD(10, ("Converted to %d perm %x\n",
665 ace->a_type, ace->a_perm));
666 }
667
668 return result;
669 }
670
671 static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type,
672 TALLOC_CTX *mem_ctx)
673 {
674 struct gpfs_acl *pacl;
675 SMB_ACL_T result = NULL;
676
677 pacl = vfs_gpfs_getacl(talloc_tos(), path, false, type);
678
679 if (pacl == NULL) {
680 DEBUG(10, ("vfs_gpfs_getacl failed for %s with %s\n",
681 path, strerror(errno)));
682 if (errno == 0) {
683 errno = EINVAL;
684 }
685 goto done;
686 }
687
688 if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
689 DEBUG(10, ("Got acl version %d, expected %d\n",
690 pacl->acl_version, GPFS_ACL_VERSION_POSIX));
691 errno = EINVAL;
692 goto done;
693 }
694
695 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
696 pacl->acl_len, pacl->acl_level, pacl->acl_version,
697 pacl->acl_nace));
698
699 result = gpfs2smb_acl(pacl, mem_ctx);
700 if (result != NULL) {
701 errno = 0;
702 }
703
704 done:
705
706 if (pacl != NULL) {
707 talloc_free(pacl);
708 }
709 if (errno != 0) {
710 TALLOC_FREE(result);
711 }
712 return result;
713 }
714
715 static SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
716 const char *path_p,
717 SMB_ACL_TYPE_T type,
718 TALLOC_CTX *mem_ctx)
719 {
720 gpfs_aclType_t gpfs_type;
721 struct gpfs_config_data *config;
722
723 SMB_VFS_HANDLE_GET_DATA(handle, config,
724 struct gpfs_config_data,
725 return NULL);
726
727 if (!config->acl) {
728 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p,
729 type, mem_ctx);
730 }
731
732 switch(type) {
733 case SMB_ACL_TYPE_ACCESS:
734 gpfs_type = GPFS_ACL_TYPE_ACCESS;
735 break;
736 case SMB_ACL_TYPE_DEFAULT:
737 gpfs_type = GPFS_ACL_TYPE_DEFAULT;
738 break;
739 default:
740 DEBUG(0, ("Got invalid type: %d\n", type));
741 smb_panic("exiting");
742 }
743
744 return gpfsacl_get_posix_acl(path_p, gpfs_type, mem_ctx);
745 }
746
747 static SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
748 files_struct *fsp,
749 TALLOC_CTX *mem_ctx)
750 {
751 struct gpfs_config_data *config;
752
753 SMB_VFS_HANDLE_GET_DATA(handle, config,
754 struct gpfs_config_data,
755 return NULL);
756
757 if (!config->acl) {
758 return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
759 }
760
761 return gpfsacl_get_posix_acl(fsp->fsp_name->base_name,
762 GPFS_ACL_TYPE_ACCESS, mem_ctx);
763 }
764
765 static int gpfsacl_sys_acl_blob_get_file(vfs_handle_struct *handle,
766 const char *path_p,
767 TALLOC_CTX *mem_ctx,
768 char **blob_description,
769 DATA_BLOB *blob)
770 {
771 struct gpfs_config_data *config;
772 struct gpfs_opaque_acl *acl = NULL;
773 DATA_BLOB aclblob;
774 int result;
775
776 SMB_VFS_HANDLE_GET_DATA(handle, config,
777 struct gpfs_config_data,
778 return -1);
779
780 if (!config->acl) {
781 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, path_p,
782 mem_ctx,
783 blob_description,
784 blob);
785 }
786
787 errno = 0;
788 acl = (struct gpfs_opaque_acl *)
789 vfs_gpfs_getacl(mem_ctx,
790 path_p,
791 true,
792 GPFS_ACL_TYPE_NFS4);
793
794 if (errno) {
795 DEBUG(5, ("vfs_gpfs_getacl finished with errno %d: %s\n",
796 errno, strerror(errno)));
797
798 /* EINVAL means POSIX ACL, bail out on other cases */
799 if (errno != EINVAL) {
800 return -1;
801 }
802 }
803
804 if (acl != NULL) {
805 /*
806 * file has NFSv4 ACL
807 *
808 * we only need the actual ACL blob here
809 * acl_version will always be NFS4 because we asked
810 * for NFS4
811 * acl_type is only used for POSIX ACLs
812 */
813 aclblob.data = (uint8_t*) acl->acl_var_data;
814 aclblob.length = acl->acl_buffer_len;
815
816 *blob_description = talloc_strdup(mem_ctx, "gpfs_nfs4_acl");
817 if (!*blob_description) {
818 talloc_free(acl);
819 errno = ENOMEM;
820 return -1;
821 }
822
823 result = non_posix_sys_acl_blob_get_file_helper(handle, path_p,
824 aclblob,
825 mem_ctx, blob);
826
827 talloc_free(acl);
828 return result;
829 }
830
831 /* fall back to POSIX ACL */
832 return posix_sys_acl_blob_get_file(handle, path_p, mem_ctx,
833 blob_description, blob);
834 }
835
836 static int gpfsacl_sys_acl_blob_get_fd(vfs_handle_struct *handle,
837 files_struct *fsp,
838 TALLOC_CTX *mem_ctx,
839 char **blob_description,
840 DATA_BLOB *blob)
841 {
842 struct gpfs_config_data *config;
843 struct gpfs_opaque_acl *acl = NULL;
844 DATA_BLOB aclblob;
845 int result;
846
847 SMB_VFS_HANDLE_GET_DATA(handle, config,
848 struct gpfs_config_data,
849 return -1);
850
851 if (!config->acl) {
852 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
853 blob_description, blob);
854 }
855
856 errno = 0;
857 acl = (struct gpfs_opaque_acl *) vfs_gpfs_getacl(mem_ctx,
858 fsp->fsp_name->base_name,
859 true,
860 GPFS_ACL_TYPE_NFS4);
861
862 if (errno) {
863 DEBUG(5, ("vfs_gpfs_getacl finished with errno %d: %s\n",
864 errno, strerror(errno)));
865
866 /* EINVAL means POSIX ACL, bail out on other cases */
867 if (errno != EINVAL) {
868 return -1;
869 }
870 }
871
872 if (acl != NULL) {
873 /*
874 * file has NFSv4 ACL
875 *
876 * we only need the actual ACL blob here
877 * acl_version will always be NFS4 because we asked
878 * for NFS4
879 * acl_type is only used for POSIX ACLs
880 */
881 aclblob.data = (uint8_t*) acl->acl_var_data;
882 aclblob.length = acl->acl_buffer_len;
883
884 *blob_description = talloc_strdup(mem_ctx, "gpfs_nfs4_acl");
885 if (!*blob_description) {
886 talloc_free(acl);
887 errno = ENOMEM;
888 return -1;
889 }
890
891 result = non_posix_sys_acl_blob_get_fd_helper(handle, fsp,
892 aclblob, mem_ctx,
893 blob);
894
895 talloc_free(acl);
896 return result;
897 }
898
899 /* fall back to POSIX ACL */
900 return posix_sys_acl_blob_get_fd(handle, fsp, mem_ctx,
901 blob_description, blob);
902 }
903
904 static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
905 SMB_ACL_TYPE_T type)
906 {
907 gpfs_aclLen_t len;
908 struct gpfs_acl *result;
909 int i;
910
911 DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
912
913 len = offsetof(gpfs_acl_t, ace_v1) + (pacl->count) *
914 sizeof(gpfs_ace_v1_t);
915
916 result = (struct gpfs_acl *)SMB_MALLOC(len);
917 if (result == NULL) {
918 errno = ENOMEM;
919 return result;
920 }
921
922 result->acl_len = len;
923 result->acl_level = 0;
924 result->acl_version = GPFS_ACL_VERSION_POSIX;
925 result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
926 GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
927 result->acl_nace = pacl->count;
928
929 for (i=0; i<pacl->count; i++) {
930 const struct smb_acl_entry *ace = &pacl->acl[i];
931 struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
932
933 DEBUG(10, ("Converting type %d perm %x\n",
934 (int)ace->a_type, (int)ace->a_perm));
935
936 g_ace->ace_perm = 0;
937
938 switch(ace->a_type) {
939 case SMB_ACL_USER:
940 g_ace->ace_type = GPFS_ACL_USER;
941 g_ace->ace_who = (gpfs_uid_t)ace->info.user.uid;
942 break;
943 case SMB_ACL_USER_OBJ:
944 g_ace->ace_type = GPFS_ACL_USER_OBJ;
945 g_ace->ace_perm |= ACL_PERM_CONTROL;
946 g_ace->ace_who = 0;
947 break;
948 case SMB_ACL_GROUP:
949 g_ace->ace_type = GPFS_ACL_GROUP;
950 g_ace->ace_who = (gpfs_uid_t)ace->info.group.gid;
951 break;
952 case SMB_ACL_GROUP_OBJ:
953 g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
954 g_ace->ace_who = 0;
955 break;
956 case SMB_ACL_MASK:
957 g_ace->ace_type = GPFS_ACL_MASK;
958 g_ace->ace_perm = 0x8f;
959 g_ace->ace_who = 0;
960 break;
961 case SMB_ACL_OTHER:
962 g_ace->ace_type = GPFS_ACL_OTHER;
963 g_ace->ace_who = 0;
964 break;
965 default:
966 DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
967 errno = EINVAL;
968 SAFE_FREE(result);
969 return NULL;
970 }
971
972 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
973 ACL_PERM_READ : 0;
974 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
975 ACL_PERM_WRITE : 0;
976 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
977 ACL_PERM_EXECUTE : 0;
978
979 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
980 g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
981 }
982
983 return result;
984 }
985
986 static int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
987 const char *name,
988 SMB_ACL_TYPE_T type,
989 SMB_ACL_T theacl)
990 {
991 struct gpfs_acl *gpfs_acl;
992 int result;
993 struct gpfs_config_data *config;
994
995 SMB_VFS_HANDLE_GET_DATA(handle, config,
996 struct gpfs_config_data,
997 return -1);
998
999 if (!config->acl) {
1000 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name, type, theacl);
1001 }
1002
1003 gpfs_acl = smb2gpfs_acl(theacl, type);
1004 if (gpfs_acl == NULL) {
1005 return -1;
1006 }
1007
1008 result = smbd_gpfs_putacl((char *)name, GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gpfs_acl);
1009
1010 SAFE_FREE(gpfs_acl);
1011 return result;
1012 }
1013
1014 static int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
1015 files_struct *fsp,
1016 SMB_ACL_T theacl)
1017 {
1018 struct gpfs_config_data *config;
1019
1020 SMB_VFS_HANDLE_GET_DATA(handle, config,
1021 struct gpfs_config_data,
1022 return -1);
1023
1024 if (!config->acl) {
1025 return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
1026 }
1027
1028 return gpfsacl_sys_acl_set_file(handle, fsp->fsp_name->base_name,
1029 SMB_ACL_TYPE_ACCESS, theacl);
1030 }
1031
1032 static int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
1033 const char *path)
1034 {
1035 struct gpfs_config_data *config;
1036
1037 SMB_VFS_HANDLE_GET_DATA(handle, config,
1038 struct gpfs_config_data,
1039 return -1);
1040
1041 if (!config->acl) {
1042 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
1043 }
1044
1045 errno = ENOTSUP;
1046 return -1;
1047 }
1048
1049 /*
1050 * Assumed: mode bits are shiftable and standard
1051 * Output: the new aceMask field for an smb nfs4 ace
1052 */
1053 static uint32 gpfsacl_mask_filter(uint32 aceType, uint32 aceMask, uint32 rwx)
1054 {
1055 const uint32 posix_nfs4map[3] = {
1056 SMB_ACE4_EXECUTE, /* execute */
1057 SMB_ACE4_WRITE_DATA | SMB_ACE4_APPEND_DATA, /* write; GPFS specific */
1058 SMB_ACE4_READ_DATA /* read */
1059 };
1060 int i;
1061 uint32_t posix_mask = 0x01;
1062 uint32_t posix_bit;
1063 uint32_t nfs4_bits;
1064
1065 for(i=0; i<3; i++) {
1066 nfs4_bits = posix_nfs4map[i];
1067 posix_bit = rwx & posix_mask;
1068
1069 if (aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE) {
1070 if (posix_bit)
1071 aceMask |= nfs4_bits;
1072 else
1073 aceMask &= ~nfs4_bits;
1074 } else {
1075 /* add deny bits when suitable */
1076 if (!posix_bit)
1077 aceMask |= nfs4_bits;
1078 else
1079 aceMask &= ~nfs4_bits;
1080 } /* other ace types are unexpected */
1081
1082 posix_mask <<= 1;
1083 }
1084
1085 return aceMask;
1086 }
1087
1088 static int gpfsacl_emu_chmod(const char *path, mode_t mode)
1089 {
1090 SMB4ACL_T *pacl = NULL;
1091 int result;
1092 bool haveAllowEntry[SMB_ACE4_WHO_EVERYONE + 1] = {False, False, False, False};
1093 int i;
1094 files_struct fake_fsp; /* TODO: rationalize parametrization */
1095 SMB4ACE_T *smbace;
1096 NTSTATUS status;
1097
1098 DEBUG(10, ("gpfsacl_emu_chmod invoked for %s mode %o\n", path, mode));
1099
1100 result = gpfs_get_nfs4_acl(path, &pacl);
1101 if (result)
1102 return result;
1103
1104 if (mode & ~(S_IRWXU | S_IRWXG | S_IRWXO)) {
1105 DEBUG(2, ("WARNING: cutting extra mode bits %o on %s\n", mode, path));
1106 }
1107
1108 for (smbace=smb_first_ace4(pacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
1109 SMB_ACE4PROP_T *ace = smb_get_ace4(smbace);
1110 uint32_t specid = ace->who.special_id;
1111
1112 if (ace->flags&SMB_ACE4_ID_SPECIAL &&
1113 ace->aceType<=SMB_ACE4_ACCESS_DENIED_ACE_TYPE &&
1114 specid <= SMB_ACE4_WHO_EVERYONE) {
1115
1116 uint32_t newMask;
1117
1118 if (ace->aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE)
1119 haveAllowEntry[specid] = True;
1120
1121 /* mode >> 6 for @owner, mode >> 3 for @group,
1122 * mode >> 0 for @everyone */
1123 newMask = gpfsacl_mask_filter(ace->aceType, ace->aceMask,
1124 mode >> ((SMB_ACE4_WHO_EVERYONE - specid) * 3));
1125 if (ace->aceMask!=newMask) {
1126 DEBUG(10, ("ace changed for %s (%o -> %o) id=%d\n",
1127 path, ace->aceMask, newMask, specid));
1128 }
1129 ace->aceMask = newMask;
1130 }
1131 }
1132
1133 /* make sure we have at least ALLOW entries
1134 * for all the 3 special ids (@EVERYONE, @OWNER, @GROUP)
1135 * - if necessary
1136 */
1137 for(i = SMB_ACE4_WHO_OWNER; i<=SMB_ACE4_WHO_EVERYONE; i++) {
1138 SMB_ACE4PROP_T ace;
1139
1140 if (haveAllowEntry[i]==True)
1141 continue;
1142
1143 ZERO_STRUCT(ace);
1144 ace.aceType = SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE;
1145 ace.flags |= SMB_ACE4_ID_SPECIAL;
1146 ace.who.special_id = i;
1147
1148 if (i==SMB_ACE4_WHO_GROUP) /* not sure it's necessary... */
1149 ace.aceFlags |= SMB_ACE4_IDENTIFIER_GROUP;
1150
1151 ace.aceMask = gpfsacl_mask_filter(ace.aceType, ace.aceMask,
1152 mode >> ((SMB_ACE4_WHO_EVERYONE - i) * 3));
1153
1154 /* don't add unnecessary aces */
1155 if (!ace.aceMask)
1156 continue;
1157
1158 /* we add it to the END - as windows expects allow aces */
1159 smb_add_ace4(pacl, &ace);
1160 DEBUG(10, ("Added ALLOW ace for %s, mode=%o, id=%d, aceMask=%x\n",
1161 path, mode, i, ace.aceMask));
1162 }
1163
1164 /* don't add complementary DENY ACEs here */
1165 ZERO_STRUCT(fake_fsp);
1166 fake_fsp.fsp_name = synthetic_smb_fname(
1167 talloc_tos(), path, NULL, NULL);
1168 if (fake_fsp.fsp_name == NULL) {
1169 errno = ENOMEM;
1170 return -1;
1171 }
1172 /* put the acl */
1173 if (gpfsacl_process_smbacl(&fake_fsp, pacl) == False) {
1174 TALLOC_FREE(fake_fsp.fsp_name);
1175 return -1;
1176 }
1177
1178 TALLOC_FREE(fake_fsp.fsp_name);
1179 return 0; /* ok for [f]chmod */
1180 }
1181
1182 static int vfs_gpfs_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
1183 {
1184 struct smb_filename *smb_fname_cpath;
1185 int rc;
1186
1187 smb_fname_cpath = synthetic_smb_fname(talloc_tos(), path, NULL, NULL);
1188 if (smb_fname_cpath == NULL) {
1189 errno = ENOMEM;
1190 return -1;
1191 }
1192
1193 if (SMB_VFS_NEXT_STAT(handle, smb_fname_cpath) != 0) {
1194 return -1;
1195 }
1196
1197 /* avoid chmod() if possible, to preserve acls */
1198 if ((smb_fname_cpath->st.st_ex_mode & ~S_IFMT) == mode) {
1199 return 0;
1200 }
1201
1202 rc = gpfsacl_emu_chmod(path, mode);
1203 if (rc == 1)
1204 return SMB_VFS_NEXT_CHMOD(handle, path, mode);
1205 return rc;
1206 }
1207
1208 static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
1209 {
1210 SMB_STRUCT_STAT st;
1211 int rc;
1212
1213 if (SMB_VFS_NEXT_FSTAT(handle, fsp, &st) != 0) {
1214 return -1;
1215 }
1216
1217 /* avoid chmod() if possible, to preserve acls */
1218 if ((st.st_ex_mode & ~S_IFMT) == mode) {
1219 return 0;
1220 }
1221
1222 rc = gpfsacl_emu_chmod(fsp->fsp_name->base_name, mode);
1223 if (rc == 1)
1224 return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
1225 return rc;
1226 }
1227
1228 static int gpfs_set_xattr(struct vfs_handle_struct *handle, const char *path,
1229 const char *name, const void *value, size_t size, int flags){
1230 struct xattr_DOSATTRIB dosattrib;
1231 enum ndr_err_code ndr_err;
1232 DATA_BLOB blob;
1233 const char *attrstr = value;
1234 unsigned int dosmode=0;
1235 struct gpfs_winattr attrs;
1236 int ret = 0;
1237 struct gpfs_config_data *config;
1238
1239 SMB_VFS_HANDLE_GET_DATA(handle, config,
1240 struct gpfs_config_data,
1241 return -1);
1242
1243 if (!config->winattr) {
1244 DEBUG(10, ("gpfs_set_xattr:name is %s -> next\n",name));
1245 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1246 }
1247
1248 DEBUG(10, ("gpfs_set_xattr: %s \n",path));
1249
1250 /* Only handle DOS Attributes */
1251 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1252 DEBUG(5, ("gpfs_set_xattr:name is %s\n",name));
1253 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1254 }
1255
1256 blob.data = (uint8_t *)attrstr;
1257 blob.length = size;
1258
1259 ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), &dosattrib,
1260 (ndr_pull_flags_fn_t)ndr_pull_xattr_DOSATTRIB);
1261
1262 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1263 DEBUG(1, ("gpfs_set_xattr: bad ndr decode "
1264 "from EA on file %s: Error = %s\n",
1265 path, ndr_errstr(ndr_err)));
1266 return false;
1267 }
1268
1269 if (dosattrib.version != 3) {
1270 DEBUG(1, ("gpfs_set_xattr: expected dosattrib version 3, got "
1271 "%d\n", (int)dosattrib.version));
1272 return false;
1273 }
1274 if (!(dosattrib.info.info3.valid_flags & XATTR_DOSINFO_ATTRIB)) {
1275 DEBUG(10, ("gpfs_set_xattr: XATTR_DOSINFO_ATTRIB not "
1276 "valid, ignoring\n"));
1277 return true;
1278 }
1279
1280 dosmode = dosattrib.info.info3.attrib;
1281
1282 attrs.winAttrs = 0;
1283 /*Just map RD_ONLY, ARCHIVE, SYSTEM HIDDEN and SPARSE. Ignore the others*/
1284 if (dosmode & FILE_ATTRIBUTE_ARCHIVE){
1285 attrs.winAttrs |= GPFS_WINATTR_ARCHIVE;
1286 }
1287 if (dosmode & FILE_ATTRIBUTE_HIDDEN){
1288 attrs.winAttrs |= GPFS_WINATTR_HIDDEN;
1289 }
1290 if (dosmode & FILE_ATTRIBUTE_SYSTEM){
1291 attrs.winAttrs |= GPFS_WINATTR_SYSTEM;
1292 }
1293 if (dosmode & FILE_ATTRIBUTE_READONLY){
1294 attrs.winAttrs |= GPFS_WINATTR_READONLY;
1295 }
1296 if (dosmode & FILE_ATTRIBUTE_SPARSE) {
1297 attrs.winAttrs |= GPFS_WINATTR_SPARSE_FILE;
1298 }
1299
1300
1301 ret = set_gpfs_winattrs(discard_const_p(char, path),
1302 GPFS_WINATTR_SET_ATTRS, &attrs);
1303 if ( ret == -1){
1304 if (errno == ENOSYS) {
1305 return SMB_VFS_NEXT_SETXATTR(handle, path, name, value,
1306 size, flags);
1307 }
1308
1309 DEBUG(1, ("gpfs_set_xattr:Set GPFS attributes failed %d\n",ret));
1310 return -1;
1311 }
1312
1313 DEBUG(10, ("gpfs_set_xattr:Set attributes: 0x%x\n",attrs.winAttrs));
1314 return 0;
1315 }
1316
1317 static ssize_t gpfs_get_xattr(struct vfs_handle_struct *handle, const char *path,
1318 const char *name, void *value, size_t size){
1319 char *attrstr = value;
1320 unsigned int dosmode = 0;
1321 struct gpfs_winattr attrs;
1322 int ret = 0;
1323 struct gpfs_config_data *config;
1324
1325 SMB_VFS_HANDLE_GET_DATA(handle, config,
1326 struct gpfs_config_data,
1327 return -1);
1328
1329 if (!config->winattr) {
1330 DEBUG(10, ("gpfs_get_xattr:name is %s -> next\n",name));
1331 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1332 }
1333
1334 DEBUG(10, ("gpfs_get_xattr: %s \n",path));
1335
1336 /* Only handle DOS Attributes */
1337 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1338 DEBUG(5, ("gpfs_get_xattr:name is %s\n",name));
1339 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1340 }
1341
1342 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1343 if ( ret == -1){
1344 if (errno == ENOSYS) {
1345 return SMB_VFS_NEXT_GETXATTR(handle, path, name, value,
1346 size);
1347 }
1348
1349 DEBUG(1, ("gpfs_get_xattr: Get GPFS attributes failed: "
1350 "%d (%s)\n", ret, strerror(errno)));
1351 return -1;
1352 }
1353
1354 DEBUG(10, ("gpfs_get_xattr:Got attributes: 0x%x\n",attrs.winAttrs));
1355
1356 /*Just map RD_ONLY, ARCHIVE, SYSTEM, HIDDEN and SPARSE. Ignore the others*/
1357 if (attrs.winAttrs & GPFS_WINATTR_ARCHIVE){
1358 dosmode |= FILE_ATTRIBUTE_ARCHIVE;
1359 }
1360 if (attrs.winAttrs & GPFS_WINATTR_HIDDEN){
1361 dosmode |= FILE_ATTRIBUTE_HIDDEN;
1362 }
1363 if (attrs.winAttrs & GPFS_WINATTR_SYSTEM){
1364 dosmode |= FILE_ATTRIBUTE_SYSTEM;
1365 }
1366 if (attrs.winAttrs & GPFS_WINATTR_READONLY){
1367 dosmode |= FILE_ATTRIBUTE_READONLY;
1368 }
1369 if (attrs.winAttrs & GPFS_WINATTR_SPARSE_FILE) {
1370 dosmode |= FILE_ATTRIBUTE_SPARSE;
1371 }
1372
1373 snprintf(attrstr, size, "0x%2.2x",
1374 (unsigned int)(dosmode & SAMBA_ATTRIBUTES_MASK));
1375 DEBUG(10, ("gpfs_get_xattr: returning %s\n",attrstr));
1376 return 4;
1377 }
1378
1379 static int vfs_gpfs_stat(struct vfs_handle_struct *handle,
1380 struct smb_filename *smb_fname)
1381 {
1382 struct gpfs_winattr attrs;
1383 char *fname = NULL;
1384 NTSTATUS status;
1385 int ret;
1386 struct gpfs_config_data *config;
1387
1388 SMB_VFS_HANDLE_GET_DATA(handle, config,
1389 struct gpfs_config_data,
1390 return -1);
1391
1392 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
1393 if (ret == -1) {
1394 return -1;
1395 }
1396
1397 if (!config->winattr) {
1398 return 0;
1399 }
1400
1401 status = get_full_smb_filename(talloc_tos(), smb_fname, &fname);
1402 if (!NT_STATUS_IS_OK(status)) {
1403 errno = map_errno_from_nt_status(status);
1404 return -1;
1405 }
1406 ret = get_gpfs_winattrs(discard_const_p(char, fname), &attrs);
1407 TALLOC_FREE(fname);
1408 if (ret == 0) {
1409 smb_fname->st.st_ex_calculated_birthtime = false;
1410 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1411 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1412 smb_fname->st.vfs_private = attrs.winAttrs;
1413 }
1414 return 0;
1415 }
1416
1417 static int vfs_gpfs_fstat(struct vfs_handle_struct *handle,
1418 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1419 {
1420 struct gpfs_winattr attrs;
1421 int ret;
1422 struct gpfs_config_data *config;
1423
1424 SMB_VFS_HANDLE_GET_DATA(handle, config,
1425 struct gpfs_config_data,
1426 return -1);
1427
1428 ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
1429 if (ret == -1) {
1430 return -1;
1431 }
1432 if ((fsp->fh == NULL) || (fsp->fh->fd == -1)) {
1433 return 0;
1434 }
1435 if (!config->winattr) {
1436 return 0;
1437 }
1438
1439 ret = smbd_fget_gpfs_winattrs(fsp->fh->fd, &attrs);
1440 if (ret == 0) {
1441 sbuf->st_ex_calculated_birthtime = false;
1442 sbuf->st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1443 sbuf->st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1444 }
1445 return 0;
1446 }
1447
1448 static int vfs_gpfs_lstat(struct vfs_handle_struct *handle,
1449 struct smb_filename *smb_fname)
1450 {
1451 struct gpfs_winattr attrs;
1452 char *path = NULL;
1453 NTSTATUS status;
1454 int ret;
1455 struct gpfs_config_data *config;
1456
1457 SMB_VFS_HANDLE_GET_DATA(handle, config,
1458 struct gpfs_config_data,
1459 return -1);
1460
1461 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1462 if (ret == -1) {
1463 return -1;
1464 }
1465 if (!config->winattr) {
1466 return 0;
1467 }
1468
1469 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1470 if (!NT_STATUS_IS_OK(status)) {
1471 errno = map_errno_from_nt_status(status);
1472 return -1;
1473 }
1474 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1475 TALLOC_FREE(path);
1476 if (ret == 0) {
1477 smb_fname->st.st_ex_calculated_birthtime = false;
1478 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1479 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1480 smb_fname->st.vfs_private = attrs.winAttrs;
1481 }
1482 return 0;
1483 }
1484
1485 static int vfs_gpfs_ntimes(struct vfs_handle_struct *handle,
1486 const struct smb_filename *smb_fname,
1487 struct smb_file_time *ft)
1488 {
1489
1490 struct gpfs_winattr attrs;
1491 int ret;
1492 char *path = NULL;
1493 NTSTATUS status;
1494 struct gpfs_config_data *config;
1495
1496 SMB_VFS_HANDLE_GET_DATA(handle, config,
1497 struct gpfs_config_data,
1498 return -1);
1499
1500 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1501 if(ret == -1){
1502 /* don't complain if access was denied */
1503 if (errno != EPERM && errno != EACCES) {
1504 DEBUG(1,("vfs_gpfs_ntimes: SMB_VFS_NEXT_NTIMES failed:"
1505 "%s", strerror(errno)));
1506 }
1507 return -1;
1508 }
1509
1510 if(null_timespec(ft->create_time)){
1511 DEBUG(10,("vfs_gpfs_ntimes:Create Time is NULL\n"));
1512 return 0;
1513 }
1514
1515 if (!config->winattr) {
1516 return 0;
1517 }
1518
1519 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1520 if (!NT_STATUS_IS_OK(status)) {
1521 errno = map_errno_from_nt_status(status);
1522 return -1;
1523 }
1524
1525 attrs.winAttrs = 0;
1526 attrs.creationTime.tv_sec = ft->create_time.tv_sec;
1527 attrs.creationTime.tv_nsec = ft->create_time.tv_nsec;
1528
1529 ret = set_gpfs_winattrs(discard_const_p(char, path),
1530 GPFS_WINATTR_SET_CREATION_TIME, &attrs);
1531 if(ret == -1 && errno != ENOSYS){
1532 DEBUG(1,("vfs_gpfs_ntimes: set GPFS ntimes failed %d\n",ret));
1533 return -1;
1534 }
1535 return 0;
1536
1537 }
1538
1539 static int vfs_gpfs_fallocate(struct vfs_handle_struct *handle,
1540 struct files_struct *fsp, enum vfs_fallocate_mode mode,
1541 off_t offset, off_t len)
1542 {
1543 int ret;
1544 struct gpfs_config_data *config;
1545
1546 SMB_VFS_HANDLE_GET_DATA(handle, config,
1547 struct gpfs_config_data,
1548 return -1);
1549
1550 if (!config->prealloc) {
1551 /* you should better not run fallocate() on GPFS at all */
1552 errno = ENOTSUP;
1553 return -1;
1554 }
1555
1556 if (mode == VFS_FALLOCATE_KEEP_SIZE) {
1557 DEBUG(10, ("Unsupported VFS_FALLOCATE_KEEP_SIZE\n"));
1558 errno = ENOTSUP;
1559 return -1;
1560 }
1561
1562 ret = smbd_gpfs_prealloc(fsp->fh->fd, offset, len);
1563
1564 if (ret == -1 && errno != ENOSYS) {
1565 DEBUG(0, ("GPFS prealloc failed: %s\n", strerror(errno)));
1566 } else if (ret == -1 && errno == ENOSYS) {
1567 DEBUG(10, ("GPFS prealloc not supported.\n"));
1568 } else {
1569 DEBUG(10, ("GPFS prealloc succeeded.\n"));
1570 }
1571
1572 return ret;
1573 }
1574
1575 static int vfs_gpfs_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1576 off_t len)
1577 {
1578 int result;
1579 struct gpfs_config_data *config;
1580
1581 SMB_VFS_HANDLE_GET_DATA(handle, config,
1582 struct gpfs_config_data,
1583 return -1);
1584
1585 if (!config->ftruncate) {
1586 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1587 }
1588
1589 result = smbd_gpfs_ftruncate(fsp->fh->fd, len);
1590 if ((result == -1) && (errno == ENOSYS)) {
1591 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1592 }
1593 return result;
1594 }
1595
1596 static bool vfs_gpfs_is_offline(struct vfs_handle_struct *handle,
1597 const struct smb_filename *fname,
1598 SMB_STRUCT_STAT *sbuf)
1599 {
1600 struct gpfs_winattr attrs;
1601 char *path = NULL;
1602 NTSTATUS status;
1603 struct gpfs_config_data *config;
1604
1605 SMB_VFS_HANDLE_GET_DATA(handle, config,
1606 struct gpfs_config_data,
1607 return -1);
1608
1609 if (!config->winattr) {
1610 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1611 }
1612
1613 status = get_full_smb_filename(talloc_tos(), fname, &path);
1614 if (!NT_STATUS_IS_OK(status)) {
1615 errno = map_errno_from_nt_status(status);
1616 return -1;
1617 }
1618
1619 if (VALID_STAT(*sbuf)) {
1620 attrs.winAttrs = sbuf->vfs_private;
1621 } else {
1622 int ret;
1623 ret = get_gpfs_winattrs(path, &attrs);
1624
1625 if (ret == -1) {
1626 TALLOC_FREE(path);
1627 return false;
1628 }
1629 }
1630 if ((attrs.winAttrs & GPFS_WINATTR_OFFLINE) != 0) {
1631 DEBUG(10, ("%s is offline\n", path));
1632 TALLOC_FREE(path);
1633 return true;
1634 }
1635 DEBUG(10, ("%s is online\n", path));
1636 TALLOC_FREE(path);
1637 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1638 }
1639
1640 static bool vfs_gpfs_aio_force(struct vfs_handle_struct *handle,
1641 struct files_struct *fsp)
1642 {
1643 return vfs_gpfs_is_offline(handle, fsp->fsp_name, &fsp->fsp_name->st);
1644 }
1645
1646 static ssize_t vfs_gpfs_sendfile(vfs_handle_struct *handle, int tofd,
1647 files_struct *fsp, const DATA_BLOB *hdr,
1648 off_t offset, size_t n)
1649 {
1650 if ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0) {
1651 errno = ENOSYS;
1652 return -1;
1653 }
1654 return SMB_VFS_NEXT_SENDFILE(handle, tofd, fsp, hdr, offset, n);
1655 }
1656
1657 static int vfs_gpfs_connect(struct vfs_handle_struct *handle,
1658 const char *service, const char *user)
1659 {
1660 struct gpfs_config_data *config;
1661 int ret;
1662
1663 smbd_gpfs_lib_init();
1664
1665 ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
1666
1667 if (ret < 0) {
1668 return ret;
1669 }
1670
1671 config = talloc_zero(handle->conn, struct gpfs_config_data);
1672 if (!config) {
1673 SMB_VFS_NEXT_DISCONNECT(handle);
1674 DEBUG(0, ("talloc_zero() failed\n"));
1675 return -1;
1676 }
1677
1678 config->sharemodes = lp_parm_bool(SNUM(handle->conn), "gpfs",
1679 "sharemodes", true);
1680
1681 config->leases = lp_parm_bool(SNUM(handle->conn), "gpfs",
1682 "leases", true);
1683
1684 config->hsm = lp_parm_bool(SNUM(handle->conn), "gpfs",
1685 "hsm", false);
1686
1687 config->syncio = lp_parm_bool(SNUM(handle->conn), "gpfs",
1688 "syncio", false);
1689
1690 config->winattr = lp_parm_bool(SNUM(handle->conn), "gpfs",
1691 "winattr", false);
1692
1693 config->ftruncate = lp_parm_bool(SNUM(handle->conn), "gpfs",
1694 "ftruncate", true);
1695
1696 config->getrealfilename = lp_parm_bool(SNUM(handle->conn), "gpfs",
1697 "getrealfilename", true);
1698
1699 config->dfreequota = lp_parm_bool(SNUM(handle->conn), "gpfs",
1700 "dfreequota", false);
1701
1702 config->prealloc = lp_parm_bool(SNUM(handle->conn), "gpfs",
1703 "prealloc", true);
1704
1705 config->acl = lp_parm_bool(SNUM(handle->conn), "gpfs", "acl", true);
1706
1707 SMB_VFS_HANDLE_SET_DATA(handle, config,
1708 NULL, struct gpfs_config_data,
1709 return -1);
1710
1711 if (config->leases) {
1712 /*
1713 * GPFS lease code is based on kernel oplock code
1714 * so make sure it is turned on
1715 */
1716 if (!lp_kernel_oplocks(SNUM(handle->conn))) {
1717 DEBUG(5, ("Enabling kernel oplocks for "
1718 "gpfs:leases to work\n"));
1719 lp_do_parameter(SNUM(handle->conn), "kernel oplocks",
1720 "true");
1721 }
1722
1723 /*
1724 * as the kernel does not properly support Level II oplocks
1725 * and GPFS leases code is based on kernel infrastructure, we
1726 * need to turn off Level II oplocks if gpfs:leases is enabled
1727 */
1728 if (lp_level2_oplocks(SNUM(handle->conn))) {
1729 DEBUG(5, ("gpfs:leases are enabled, disabling "
1730 "Level II oplocks\n"));
1731 lp_do_parameter(SNUM(handle->conn), "level2 oplocks",
1732 "false");
1733 }
1734 }
1735
1736 return 0;
1737 }
1738
1739 static int vfs_gpfs_get_quotas(const char *path, uid_t uid, gid_t gid,
1740 int *fset_id,
1741 struct gpfs_quotaInfo *qi_user,
1742 struct gpfs_quotaInfo *qi_group,
1743 struct gpfs_quotaInfo *qi_fset)
1744 {
1745 int err;
1746 char *dir_path;
1747 bool b;
1748
1749 /*
1750 * We want to always use the directory to get the fileset id,
1751 * because files might have a share mode. We also do not want
1752 * to get the parent directory when there is already a
1753 * directory to avoid stepping in a different fileset. The
1754 * path passed here is currently either "." or a filename, so
1755 * this is ok. The proper solution would be having a way to
1756 * query the fileset id without opening the file.
1757 */
1758 b = parent_dirname(talloc_tos(), path, &dir_path, NULL);
1759 if (!b) {
1760 errno = ENOMEM;
1761 return -1;
1762 }
1763
1764 DEBUG(10, ("path %s, directory %s\n", path, dir_path));
1765
1766 err = get_gpfs_fset_id(dir_path, fset_id);
1767 if (err) {
1768 DEBUG(0, ("Get fset id failed path %s, dir %s, errno %d.\n",
1769 path, dir_path, errno));
1770 return err;
1771 }
1772
1773 err = get_gpfs_quota(path, GPFS_USRQUOTA, uid, qi_user);
1774 if (err) {
1775 return err;
1776 }
1777
1778 err = get_gpfs_quota(path, GPFS_GRPQUOTA, gid, qi_group);
1779 if (err) {
1780 return err;
1781 }
1782
1783 err = get_gpfs_quota(path, GPFS_FILESETQUOTA, *fset_id, qi_fset);
1784 if (err) {
1785 return err;
1786 }
1787
1788 return 0;
1789 }
1790
1791 static void vfs_gpfs_disk_free_quota(struct gpfs_quotaInfo qi, time_t cur_time,
1792 uint64_t *dfree, uint64_t *dsize)
1793 {
1794 uint64_t usage, limit;
1795
1796 /*
1797 * The quota reporting is done in units of 1024 byte blocks, but
1798 * sys_fsusage uses units of 512 byte blocks, adjust the block number
1799 * accordingly. Also filter possibly negative usage counts from gpfs.
1800 */
1801 usage = qi.blockUsage < 0 ? 0 : (uint64_t)qi.blockUsage * 2;
1802 limit = (uint64_t)qi.blockHardLimit * 2;
1803
1804 /*
1805 * When the grace time for the exceeded soft block quota has been
1806 * exceeded, the soft block quota becomes an additional hard limit.
1807 */
1808 if (qi.blockSoftLimit &&
1809 qi.blockGraceTime && cur_time > qi.blockGraceTime) {
1810 /* report disk as full */
1811 *dfree = 0;
1812 *dsize = MIN(*dsize, usage);
1813 }
1814
1815 if (!qi.blockHardLimit)
1816 return;
1817
1818 if (usage >= limit) {
1819 /* report disk as full */
1820 *dfree = 0;
1821 *dsize = MIN(*dsize, usage);
1822
1823 } else {
1824 /* limit has not been reached, determine "free space" */
1825 *dfree = MIN(*dfree, limit - usage);
1826 *dsize = MIN(*dsize, limit);
1827 }
1828 }
1829
1830 static uint64_t vfs_gpfs_disk_free(vfs_handle_struct *handle, const char *path,
1831 bool small_query, uint64_t *bsize,
1832 uint64_t *dfree, uint64_t *dsize)
1833 {
1834 struct security_unix_token *utok;
1835 struct gpfs_quotaInfo qi_user, qi_group, qi_fset;
1836 struct gpfs_config_data *config;
1837 int err, fset_id;
1838 time_t cur_time;
1839
1840 SMB_VFS_HANDLE_GET_DATA(handle, config, struct gpfs_config_data,
1841 return (uint64_t)-1);
1842 if (!config->dfreequota) {
1843 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1844 bsize, dfree, dsize);
1845 }
1846
1847 err = sys_fsusage(path, dfree, dsize);
1848 if (err) {
1849 DEBUG (0, ("Could not get fs usage, errno %d\n", errno));
1850 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1851 bsize, dfree, dsize);
1852 }
1853
1854 /* sys_fsusage returns units of 512 bytes */
1855 *bsize = 512;
1856
1857 DEBUG(10, ("fs dfree %llu, dsize %llu\n",
1858 (unsigned long long)*dfree, (unsigned long long)*dsize));
1859
1860 utok = handle->conn->session_info->unix_token;
1861 err = vfs_gpfs_get_quotas(path, utok->uid, utok->gid, &fset_id,
1862 &qi_user, &qi_group, &qi_fset);
1863 if (err) {
1864 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
1865 bsize, dfree, dsize);
1866 }
1867
1868 cur_time = time(NULL);
1869
1870 /* Adjust free space and size according to quota limits. */
1871 vfs_gpfs_disk_free_quota(qi_user, cur_time, dfree, dsize);
1872 vfs_gpfs_disk_free_quota(qi_group, cur_time, dfree, dsize);
1873
1874 /* Id 0 indicates the default quota, not an actual quota */
1875 if (fset_id != 0) {
1876 vfs_gpfs_disk_free_quota(qi_fset, cur_time, dfree, dsize);
1877 }
1878
1879 disk_norm(small_query, bsize, dfree, dsize);
1880 return *dfree;
1881 }
1882
1883 static uint32_t vfs_gpfs_capabilities(struct vfs_handle_struct *handle,
1884 enum timestamp_set_resolution *p_ts_res)
1885 {
1886 struct gpfs_config_data *config;
1887 uint32_t next;
1888
1889 next = SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
1890
1891 SMB_VFS_HANDLE_GET_DATA(handle, config,
1892 struct gpfs_config_data,
1893 return next);
1894
1895 if (config->hsm) {
1896 next |= FILE_SUPPORTS_REMOTE_STORAGE;
1897 }
1898 return next;
1899 }
1900
1901 static int vfs_gpfs_open(struct vfs_handle_struct *handle,
1902 struct smb_filename *smb_fname, files_struct *fsp,
1903 int flags, mode_t mode)
1904 {
1905 struct gpfs_config_data *config;
1906
1907 SMB_VFS_HANDLE_GET_DATA(handle, config,
1908 struct gpfs_config_data,
1909 return -1);
1910
1911 if (config->syncio) {
1912 flags |= O_SYNC;
1913 }
1914 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1915 }
1916
1917 static ssize_t vfs_gpfs_pread(vfs_handle_struct *handle, files_struct *fsp,
1918 void *data, size_t n, off_t offset)
1919 {
1920 ssize_t ret;
1921
1922 ret = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
1923
1924 DEBUG(10, ("vfs_private = %x\n",
1925 (unsigned int)fsp->fsp_name->st.vfs_private));
1926
1927 if ((ret != -1) &&
1928 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1929 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1930 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
1931 FILE_NOTIFY_CHANGE_ATTRIBUTES,
1932 fsp->fsp_name->base_name);
1933 }
1934
1935 return ret;
1936 }
1937
1938 struct vfs_gpfs_pread_state {
1939 struct files_struct *fsp;
1940 ssize_t ret;
1941 int err;
1942 };
1943
1944 static void vfs_gpfs_pread_done(struct tevent_req *subreq);
1945
1946 static struct tevent_req *vfs_gpfs_pread_send(struct vfs_handle_struct *handle,
1947 TALLOC_CTX *mem_ctx,
1948 struct tevent_context *ev,
1949 struct files_struct *fsp,
1950 void *data, size_t n,
1951 off_t offset)
1952 {
1953 struct tevent_req *req, *subreq;
1954 struct vfs_gpfs_pread_state *state;
1955
1956 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pread_state);
1957 if (req == NULL) {
1958 return NULL;
1959 }
1960 state->fsp = fsp;
1961 subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
1962 n, offset);
1963 if (tevent_req_nomem(subreq, req)) {
1964 return tevent_req_post(req, ev);
1965 }
1966 tevent_req_set_callback(subreq, vfs_gpfs_pread_done, req);
1967 return req;
1968 }
1969
1970 static void vfs_gpfs_pread_done(struct tevent_req *subreq)
1971 {
1972 struct tevent_req *req = tevent_req_callback_data(
1973 subreq, struct tevent_req);
1974 struct vfs_gpfs_pread_state *state = tevent_req_data(
1975 req, struct vfs_gpfs_pread_state);
1976
1977 state->ret = SMB_VFS_PREAD_RECV(subreq, &state->err);
1978 TALLOC_FREE(subreq);
1979 tevent_req_done(req);
1980 }
1981
1982 static ssize_t vfs_gpfs_pread_recv(struct tevent_req *req, int *err)
1983 {
1984 struct vfs_gpfs_pread_state *state = tevent_req_data(
1985 req, struct vfs_gpfs_pread_state);
1986 struct files_struct *fsp = state->fsp;
1987
1988 if (tevent_req_is_unix_error(req, err)) {
1989 return -1;
1990 }
1991 *err = state->err;
1992
1993 DEBUG(10, ("vfs_private = %x\n",
1994 (unsigned int)fsp->fsp_name->st.vfs_private));
1995
1996 if ((state->ret != -1) &&
1997 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
1998 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
1999 DEBUG(10, ("sending notify\n"));
2000 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
2001 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2002 fsp->fsp_name->base_name);
2003 }
2004
2005 return state->ret;
2006 }
2007
2008 static ssize_t vfs_gpfs_pwrite(vfs_handle_struct *handle, files_struct *fsp,
2009 const void *data, size_t n, off_t offset)
2010 {
2011 ssize_t ret;
2012
2013 ret = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2014
2015 DEBUG(10, ("vfs_private = %x\n",
2016 (unsigned int)fsp->fsp_name->st.vfs_private));
2017
2018 if ((ret != -1) &&
2019 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
2020 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
2021 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
2022 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2023 fsp->fsp_name->base_name);
2024 }
2025
2026 return ret;
2027 }
2028
2029 struct vfs_gpfs_pwrite_state {
2030 struct files_struct *fsp;
2031 ssize_t ret;
2032 int err;
2033 };
2034
2035 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq);
2036
2037 static struct tevent_req *vfs_gpfs_pwrite_send(
2038 struct vfs_handle_struct *handle,
2039 TALLOC_CTX *mem_ctx,
2040 struct tevent_context *ev,
2041 struct files_struct *fsp,
2042 const void *data, size_t n,
2043 off_t offset)
2044 {
2045 struct tevent_req *req, *subreq;
2046 struct vfs_gpfs_pwrite_state *state;
2047
2048 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pwrite_state);
2049 if (req == NULL) {
2050 return NULL;
2051 }
2052 state->fsp = fsp;
2053 subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
2054 n, offset);
2055 if (tevent_req_nomem(subreq, req)) {
2056 return tevent_req_post(req, ev);
2057 }
2058 tevent_req_set_callback(subreq, vfs_gpfs_pwrite_done, req);
2059 return req;
2060 }
2061
2062 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq)
2063 {
2064 struct tevent_req *req = tevent_req_callback_data(
2065 subreq, struct tevent_req);
2066 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
2067 req, struct vfs_gpfs_pwrite_state);
2068
2069 state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->err);
2070 TALLOC_FREE(subreq);
2071 tevent_req_done(req);
2072 }
2073
2074 static ssize_t vfs_gpfs_pwrite_recv(struct tevent_req *req, int *err)
2075 {
2076 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
2077 req, struct vfs_gpfs_pwrite_state);
2078 struct files_struct *fsp = state->fsp;
2079
2080 if (tevent_req_is_unix_error(req, err)) {
2081 return -1;
2082 }
2083 *err = state->err;
2084
2085 DEBUG(10, ("vfs_private = %x\n",
2086 (unsigned int)fsp->fsp_name->st.vfs_private));
2087
2088 if ((state->ret != -1) &&
2089 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
2090 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
2091 DEBUG(10, ("sending notify\n"));
2092 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
2093 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2094 fsp->fsp_name->base_name);
2095 }
2096
2097 return state->ret;
2098 }
2099
2100
2101 static struct vfs_fn_pointers vfs_gpfs_fns = {
2102 .connect_fn = vfs_gpfs_connect,
2103 .disk_free_fn = vfs_gpfs_disk_free,
2104 .fs_capabilities_fn = vfs_gpfs_capabilities,
2105 .kernel_flock_fn = vfs_gpfs_kernel_flock,
2106 .linux_setlease_fn = vfs_gpfs_setlease,
2107 .get_real_filename_fn = vfs_gpfs_get_real_filename,
2108 .fget_nt_acl_fn = gpfsacl_fget_nt_acl,
2109 .get_nt_acl_fn = gpfsacl_get_nt_acl,
2110 .fset_nt_acl_fn = gpfsacl_fset_nt_acl,
2111 .sys_acl_get_file_fn = gpfsacl_sys_acl_get_file,
2112 .sys_acl_get_fd_fn = gpfsacl_sys_acl_get_fd,
2113 .sys_acl_blob_get_file_fn = gpfsacl_sys_acl_blob_get_file,
2114 .sys_acl_blob_get_fd_fn = gpfsacl_sys_acl_blob_get_fd,
2115 .sys_acl_set_file_fn = gpfsacl_sys_acl_set_file,
2116 .sys_acl_set_fd_fn = gpfsacl_sys_acl_set_fd,
2117 .sys_acl_delete_def_file_fn = gpfsacl_sys_acl_delete_def_file,
2118 .chmod_fn = vfs_gpfs_chmod,
2119 .fchmod_fn = vfs_gpfs_fchmod,
2120 .close_fn = vfs_gpfs_close,
2121 .setxattr_fn = gpfs_set_xattr,
2122 .getxattr_fn = gpfs_get_xattr,
2123 .stat_fn = vfs_gpfs_stat,
2124 .fstat_fn = vfs_gpfs_fstat,
2125 .lstat_fn = vfs_gpfs_lstat,
2126 .ntimes_fn = vfs_gpfs_ntimes,
2127 .is_offline_fn = vfs_gpfs_is_offline,
2128 .aio_force_fn = vfs_gpfs_aio_force,
2129 .sendfile_fn = vfs_gpfs_sendfile,
2130 .fallocate_fn = vfs_gpfs_fallocate,
2131 .open_fn = vfs_gpfs_open,
2132 .pread_fn = vfs_gpfs_pread,
2133 .pread_send_fn = vfs_gpfs_pread_send,
2134 .pread_recv_fn = vfs_gpfs_pread_recv,
2135 .pwrite_fn = vfs_gpfs_pwrite,
2136 .pwrite_send_fn = vfs_gpfs_pwrite_send,
2137 .pwrite_recv_fn = vfs_gpfs_pwrite_recv,
2138 .ftruncate_fn = vfs_gpfs_ftruncate
2139 };
2140
2141 NTSTATUS vfs_gpfs_init(void);
2142 NTSTATUS vfs_gpfs_init(void)
2143 {
2144 init_gpfs();
2145
2146 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
2147 &vfs_gpfs_fns);
2148 }
stuff from bjacke