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torture: Add a check to verify MS-SMB2 3.3.5.14.2
[Samba.git] / source3 / modules / vfs_gpfs.c
blob5ad2595544dca530cc12c0832ef2a6ca7d09507c
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 bool settimes;
52 bool recalls;
53 };
54
55 static inline unsigned int gpfs_acl_flags(gpfs_acl_t *gacl)
56 {
57 if (gacl->acl_level == 1) { /* GPFS_ACL_LEVEL_V4FLAGS */
58 /* gacl->v4Level1.acl_flags requires gpfs 3.5 */
59 return *(unsigned int *)&gacl->ace_v4;
60 }
61 return 0;
62 }
63
64 static inline gpfs_ace_v4_t *gpfs_ace_ptr(gpfs_acl_t *gacl, unsigned int i)
65 {
66 if (gacl->acl_level == 1) { /* GPFS_ACL_LEVEL_V4FLAGS */
67 /* &gacl->v4Level1.ace_v4[i] requires gpfs 3.5 */
68 char *ptr = (char *)&gacl->ace_v4[i] + sizeof(unsigned int);
69 return (gpfs_ace_v4_t *)ptr;
70 }
71 return &gacl->ace_v4[i];
72 }
73
74 static int vfs_gpfs_kernel_flock(vfs_handle_struct *handle, files_struct *fsp,
75 uint32 share_mode, uint32 access_mask)
76 {
77
78 struct gpfs_config_data *config;
79 int ret = 0;
80
81 SMB_VFS_HANDLE_GET_DATA(handle, config,
82 struct gpfs_config_data,
83 return -1);
84
85 if(!config->sharemodes) {
86 return 0;
87 }
88
89 START_PROFILE(syscall_kernel_flock);
90
91 kernel_flock(fsp->fh->fd, share_mode, access_mask);
92
93 if (!set_gpfs_sharemode(fsp, access_mask, fsp->share_access)) {
94 ret = -1;
95 }
96
97 END_PROFILE(syscall_kernel_flock);
98
99 return ret;
100 }
101
102 static int vfs_gpfs_close(vfs_handle_struct *handle, files_struct *fsp)
103 {
104
105 struct gpfs_config_data *config;
106
107 SMB_VFS_HANDLE_GET_DATA(handle, config,
108 struct gpfs_config_data,
109 return -1);
110
111 if (config->sharemodes && (fsp->fh != NULL) && (fsp->fh->fd != -1)) {
112 set_gpfs_sharemode(fsp, 0, 0);
113 }
114
115 return SMB_VFS_NEXT_CLOSE(handle, fsp);
116 }
117
118 static int vfs_gpfs_setlease(vfs_handle_struct *handle, files_struct *fsp,
119 int leasetype)
120 {
121 struct gpfs_config_data *config;
122 int ret=0;
123
124 SMB_VFS_HANDLE_GET_DATA(handle, config,
125 struct gpfs_config_data,
126 return -1);
127
128 if (linux_set_lease_sighandler(fsp->fh->fd) == -1)
129 return -1;
130
131 START_PROFILE(syscall_linux_setlease);
132
133 if (config->leases) {
134 /*
135 * Ensure the lease owner is root to allow
136 * correct delivery of lease-break signals.
137 */
138 become_root();
139 ret = set_gpfs_lease(fsp->fh->fd,leasetype);
140 unbecome_root();
141 }
142
143 END_PROFILE(syscall_linux_setlease);
144
145 return ret;
146 }
147
148 static int vfs_gpfs_get_real_filename(struct vfs_handle_struct *handle,
149 const char *path,
150 const char *name,
151 TALLOC_CTX *mem_ctx,
152 char **found_name)
153 {
154 int result;
155 char *full_path;
156 char real_pathname[PATH_MAX+1];
157 int buflen;
158 bool mangled;
159 struct gpfs_config_data *config;
160
161 SMB_VFS_HANDLE_GET_DATA(handle, config,
162 struct gpfs_config_data,
163 return -1);
164
165 if (!config->getrealfilename) {
166 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
167 mem_ctx, found_name);
168 }
169
170 mangled = mangle_is_mangled(name, handle->conn->params);
171 if (mangled) {
172 return SMB_VFS_NEXT_GET_REAL_FILENAME(handle, path, name,
173 mem_ctx, found_name);
174 }
175
176 full_path = talloc_asprintf(talloc_tos(), "%s/%s", path, name);
177 if (full_path == NULL) {
178 errno = ENOMEM;
179 return -1;
180 }
181
182 buflen = sizeof(real_pathname) - 1;
183
184 result = smbd_gpfs_get_realfilename_path(full_path, real_pathname,
185 &buflen);
186
187 TALLOC_FREE(full_path);
188
189 if ((result == -1) && (errno == ENOSYS)) {
190 return SMB_VFS_NEXT_GET_REAL_FILENAME(
191 handle, path, name, mem_ctx, found_name);
192 }
193
194 if (result == -1) {
195 DEBUG(10, ("smbd_gpfs_get_realfilename_path returned %s\n",
196 strerror(errno)));
197 return -1;
198 }
199
200 /*
201 * GPFS does not necessarily null-terminate the returned path
202 * but instead returns the buffer length in buflen.
203 */
204
205 if (buflen < sizeof(real_pathname)) {
206 real_pathname[buflen] = '\0';
207 } else {
208 real_pathname[sizeof(real_pathname)-1] = '\0';
209 }
210
211 DEBUG(10, ("smbd_gpfs_get_realfilename_path: %s/%s -> %s\n",
212 path, name, real_pathname));
213
214 name = strrchr_m(real_pathname, '/');
215 if (name == NULL) {
216 errno = ENOENT;
217 return -1;
218 }
219
220 *found_name = talloc_strdup(mem_ctx, name+1);
221 if (*found_name == NULL) {
222 errno = ENOMEM;
223 return -1;
224 }
225
226 return 0;
227 }
228
229 static void sd2gpfs_control(uint16_t control, struct gpfs_acl *gacl)
230 {
231 unsigned int gpfs_aclflags = 0;
232 control &= SEC_DESC_DACL_PROTECTED | SEC_DESC_SACL_PROTECTED |
233 SEC_DESC_DACL_AUTO_INHERITED | SEC_DESC_SACL_AUTO_INHERITED |
234 SEC_DESC_DACL_DEFAULTED | SEC_DESC_SACL_DEFAULTED |
235 SEC_DESC_DACL_PRESENT | SEC_DESC_SACL_PRESENT;
236 gpfs_aclflags = control << 8;
237 if (!(control & SEC_DESC_DACL_PRESENT))
238 gpfs_aclflags |= 0x00800000; /* ACL4_FLAG_NULL_DACL; */
239 if (!(control & SEC_DESC_SACL_PRESENT))
240 gpfs_aclflags |= 0x01000000; /* ACL4_FLAG_NULL_SACL; */
241 gacl->acl_level = 1; /* GPFS_ACL_LEVEL_V4FLAGS*/
242 /* gacl->v4Level1.acl_flags requires gpfs 3.5 */
243 *(unsigned int *)&gacl->ace_v4 = gpfs_aclflags;
244 }
245
246 static uint16_t gpfs2sd_control(unsigned int gpfs_aclflags)
247 {
248 uint16_t control = gpfs_aclflags >> 8;
249 control &= SEC_DESC_DACL_PROTECTED | SEC_DESC_SACL_PROTECTED |
250 SEC_DESC_DACL_AUTO_INHERITED | SEC_DESC_SACL_AUTO_INHERITED |
251 SEC_DESC_DACL_DEFAULTED | SEC_DESC_SACL_DEFAULTED |
252 SEC_DESC_DACL_PRESENT | SEC_DESC_SACL_PRESENT;
253 control |= SEC_DESC_SELF_RELATIVE;
254 return control;
255 }
256
257 static void gpfs_dumpacl(int level, struct gpfs_acl *gacl)
258 {
259 gpfs_aclCount_t i;
260 if (gacl==NULL)
261 {
262 DEBUG(0, ("gpfs acl is NULL\n"));
263 return;
264 }
265
266 DEBUG(level, ("len: %d, level: %d, version: %d, nace: %d, "
267 "control: %x\n",
268 gacl->acl_len, gacl->acl_level, gacl->acl_version,
269 gacl->acl_nace, gpfs_acl_flags(gacl)));
270
271 for(i=0; i<gacl->acl_nace; i++)
272 {
273 struct gpfs_ace_v4 *gace = gpfs_ace_ptr(gacl, i);
274 DEBUG(level, ("\tace[%d]: type:%d, flags:0x%x, mask:0x%x, "
275 "iflags:0x%x, who:%u\n",
276 i, gace->aceType, gace->aceFlags, gace->aceMask,
277 gace->aceIFlags, gace->aceWho));
278 }
279 }
280
281 /*
282 * get the ACL from GPFS, allocated on the specified mem_ctx
283 * internally retries when initial buffer was too small
284 *
285 * caller needs to cast result to either
286 * raw = yes: struct gpfs_opaque_acl
287 * raw = no: struct gpfs_acl
288 *
289 */
290 static void *vfs_gpfs_getacl(TALLOC_CTX *mem_ctx,
291 const char *fname,
292 const bool raw,
293 const gpfs_aclType_t type)
294 {
295
296 void *aclbuf;
297 size_t size = 512;
298 int ret, flags;
299 unsigned int *len;
300 size_t struct_size;
301
302 again:
303
304 aclbuf = talloc_zero_size(mem_ctx, size);
305 if (aclbuf == NULL) {
306 errno = ENOMEM;
307 return NULL;
308 }
309
310 if (raw) {
311 struct gpfs_opaque_acl *buf = (struct gpfs_opaque_acl *) aclbuf;
312 buf->acl_type = type;
313 flags = GPFS_GETACL_NATIVE;
314 len = (unsigned int *) &(buf->acl_buffer_len);
315 struct_size = sizeof(struct gpfs_opaque_acl);
316 } else {
317 struct gpfs_acl *buf = (struct gpfs_acl *) aclbuf;
318 buf->acl_type = type;
319 buf->acl_level = 1; /* GPFS_ACL_LEVEL_V4FLAGS */
320 flags = GPFS_GETACL_STRUCT;
321 len = &(buf->acl_len);
322 /* reserve space for control flags in gpfs 3.5 and beyond */
323 struct_size = sizeof(struct gpfs_acl) + sizeof(unsigned int);
324 }
325
326 /* set the length of the buffer as input value */
327 *len = size;
328
329 errno = 0;
330 ret = smbd_gpfs_getacl(discard_const_p(char, fname), flags, aclbuf);
331 if ((ret != 0) && (errno == ENOSPC)) {
332 /*
333 * get the size needed to accommodate the complete buffer
334 *
335 * the value returned only applies to the ACL blob in the
336 * struct so make sure to also have headroom for the first
337 * struct members by adding room for the complete struct
338 * (might be a few bytes too much then)
339 */
340 size = *len + struct_size;
341 talloc_free(aclbuf);
342 DEBUG(10, ("Increasing ACL buffer size to %zu\n", size));
343 goto again;
344 }
345
346 if (ret != 0) {
347 DEBUG(5, ("smbd_gpfs_getacl failed with %s\n",
348 strerror(errno)));
349 talloc_free(aclbuf);
350 return NULL;
351 }
352
353 return aclbuf;
354 }
355
356 /* Tries to get nfs4 acls and returns SMB ACL allocated.
357 * On failure returns 1 if it got non-NFSv4 ACL to prompt
358 * retry with POSIX ACL checks.
359 * On failure returns -1 if there is system (GPFS) error, check errno.
360 * Returns 0 on success
361 */
362 static int gpfs_get_nfs4_acl(TALLOC_CTX *mem_ctx, const char *fname, SMB4ACL_T **ppacl)
363 {
364 gpfs_aclCount_t i;
365 struct gpfs_acl *gacl = NULL;
366 DEBUG(10, ("gpfs_get_nfs4_acl invoked for %s\n", fname));
367
368 /* Get the ACL */
369 gacl = (struct gpfs_acl*) vfs_gpfs_getacl(talloc_tos(), fname,
370 false, 0);
371 if (gacl == NULL) {
372 DEBUG(9, ("gpfs_getacl failed for %s with %s\n",
373 fname, strerror(errno)));
374 return -1;
375 }
376
377 if (gacl->acl_type != GPFS_ACL_TYPE_NFS4) {
378 DEBUG(10, ("Got non-nfsv4 acl\n"));
379 /* Retry with POSIX ACLs check */
380 talloc_free(gacl);
381 return 1;
382 }
383
384 *ppacl = smb_create_smb4acl(mem_ctx);
385
386 if (gacl->acl_level == 1) { /* GPFS_ACL_LEVEL_V4FLAGS */
387 uint16_t control = gpfs2sd_control(gpfs_acl_flags(gacl));
388 smbacl4_set_controlflags(*ppacl, control);
389 }
390
391 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d, control: %x\n",
392 gacl->acl_len, gacl->acl_level, gacl->acl_version,
393 gacl->acl_nace, gpfs_acl_flags(gacl)));
394
395 for (i=0; i<gacl->acl_nace; i++) {
396 struct gpfs_ace_v4 *gace = gpfs_ace_ptr(gacl, i);
397 SMB_ACE4PROP_T smbace;
398 DEBUG(10, ("type: %d, iflags: %x, flags: %x, mask: %x, "
399 "who: %d\n", gace->aceType, gace->aceIFlags,
400 gace->aceFlags, gace->aceMask, gace->aceWho));
401
402 ZERO_STRUCT(smbace);
403 if (gace->aceIFlags & ACE4_IFLAG_SPECIAL_ID) {
404 smbace.flags |= SMB_ACE4_ID_SPECIAL;
405 switch (gace->aceWho) {
406 case ACE4_SPECIAL_OWNER:
407 smbace.who.special_id = SMB_ACE4_WHO_OWNER;
408 break;
409 case ACE4_SPECIAL_GROUP:
410 smbace.who.special_id = SMB_ACE4_WHO_GROUP;
411 break;
412 case ACE4_SPECIAL_EVERYONE:
413 smbace.who.special_id = SMB_ACE4_WHO_EVERYONE;
414 break;
415 default:
416 DEBUG(8, ("invalid special gpfs id %d "
417 "ignored\n", gace->aceWho));
418 continue; /* don't add it */
419 }
420 } else {
421 if (gace->aceFlags & ACE4_FLAG_GROUP_ID)
422 smbace.who.gid = gace->aceWho;
423 else
424 smbace.who.uid = gace->aceWho;
425 }
426
427 /* remove redundant deny entries */
428 if (i > 0 && gace->aceType == SMB_ACE4_ACCESS_DENIED_ACE_TYPE) {
429 struct gpfs_ace_v4 *prev = gpfs_ace_ptr(gacl, i - 1);
430 if (prev->aceType == SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE &&
431 prev->aceFlags == gace->aceFlags &&
432 prev->aceIFlags == gace->aceIFlags &&
433 (gace->aceMask & prev->aceMask) == 0 &&
434 gace->aceWho == prev->aceWho) {
435 /* it's redundant - skip it */
436 continue;
437 }
438 }
439
440 smbace.aceType = gace->aceType;
441 smbace.aceFlags = gace->aceFlags;
442 smbace.aceMask = gace->aceMask;
443 smb_add_ace4(*ppacl, &smbace);
444 }
445
446 talloc_free(gacl);
447
448 return 0;
449 }
450
451 static NTSTATUS gpfsacl_fget_nt_acl(vfs_handle_struct *handle,
452 files_struct *fsp, uint32 security_info,
453 TALLOC_CTX *mem_ctx,
454 struct security_descriptor **ppdesc)
455 {
456 SMB4ACL_T *pacl = NULL;
457 int result;
458 struct gpfs_config_data *config;
459 TALLOC_CTX *frame = talloc_stackframe();
460 NTSTATUS status;
461
462 *ppdesc = NULL;
463
464 SMB_VFS_HANDLE_GET_DATA(handle, config,
465 struct gpfs_config_data,
466 return NT_STATUS_INTERNAL_ERROR);
467
468 if (!config->acl) {
469 status = SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info,
470 mem_ctx, ppdesc);
471 TALLOC_FREE(frame);
472 return status;
473 }
474
475 result = gpfs_get_nfs4_acl(frame, fsp->fsp_name->base_name, &pacl);
476
477 if (result == 0) {
478 status = smb_fget_nt_acl_nfs4(fsp, security_info, mem_ctx,
479 ppdesc, pacl);
480 TALLOC_FREE(frame);
481 return status;
482 }
483
484 if (result > 0) {
485 DEBUG(10, ("retrying with posix acl...\n"));
486 status = posix_fget_nt_acl(fsp, security_info,
487 mem_ctx, ppdesc);
488 TALLOC_FREE(frame);
489 return status;
490 }
491
492 TALLOC_FREE(frame);
493
494 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
495 return map_nt_error_from_unix(errno);
496 }
497
498 static NTSTATUS gpfsacl_get_nt_acl(vfs_handle_struct *handle,
499 const char *name,
500 uint32 security_info,
501 TALLOC_CTX *mem_ctx, struct security_descriptor **ppdesc)
502 {
503 SMB4ACL_T *pacl = NULL;
504 int result;
505 struct gpfs_config_data *config;
506 TALLOC_CTX *frame = talloc_stackframe();
507 NTSTATUS status;
508
509 *ppdesc = NULL;
510
511 SMB_VFS_HANDLE_GET_DATA(handle, config,
512 struct gpfs_config_data,
513 return NT_STATUS_INTERNAL_ERROR);
514
515 if (!config->acl) {
516 status = SMB_VFS_NEXT_GET_NT_ACL(handle, name, security_info,
517 mem_ctx, ppdesc);
518 TALLOC_FREE(frame);
519 return status;
520 }
521
522 result = gpfs_get_nfs4_acl(frame, name, &pacl);
523
524 if (result == 0) {
525 status = smb_get_nt_acl_nfs4(handle->conn, name, security_info,
526 mem_ctx, ppdesc, pacl);
527 TALLOC_FREE(frame);
528 return status;
529 }
530
531 if (result > 0) {
532 DEBUG(10, ("retrying with posix acl...\n"));
533 status = posix_get_nt_acl(handle->conn, name, security_info,
534 mem_ctx, ppdesc);
535 TALLOC_FREE(frame);
536 return status;
537 }
538
539 /* GPFS ACL was not read, something wrong happened, error code is set in errno */
540 TALLOC_FREE(frame);
541 return map_nt_error_from_unix(errno);
542 }
543
544 static struct gpfs_acl *vfs_gpfs_smbacl2gpfsacl(TALLOC_CTX *mem_ctx,
545 files_struct *fsp,
546 SMB4ACL_T *smbacl,
547 bool controlflags)
548 {
549 struct gpfs_acl *gacl;
550 gpfs_aclLen_t gacl_len;
551 SMB4ACE_T *smbace;
552
553 gacl_len = offsetof(gpfs_acl_t, ace_v4) + sizeof(unsigned int)
554 + smb_get_naces(smbacl) * sizeof(gpfs_ace_v4_t);
555
556 gacl = (struct gpfs_acl *)TALLOC_SIZE(mem_ctx, gacl_len);
557 if (gacl == NULL) {
558 DEBUG(0, ("talloc failed\n"));
559 errno = ENOMEM;
560 return NULL;
561 }
562
563 gacl->acl_level = 0; /* GPFS_ACL_LEVEL_BASE */
564 gacl->acl_version = GPFS_ACL_VERSION_NFS4;
565 gacl->acl_type = GPFS_ACL_TYPE_NFS4;
566 gacl->acl_nace = 0; /* change later... */
567
568 if (controlflags) {
569 gacl->acl_level = 1; /* GPFS_ACL_LEVEL_V4FLAGS */
570 sd2gpfs_control(smbacl4_get_controlflags(smbacl), gacl);
571 }
572
573 for (smbace=smb_first_ace4(smbacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
574 struct gpfs_ace_v4 *gace = gpfs_ace_ptr(gacl, gacl->acl_nace);
575 SMB_ACE4PROP_T *aceprop = smb_get_ace4(smbace);
576
577 gace->aceType = aceprop->aceType;
578 gace->aceFlags = aceprop->aceFlags;
579 gace->aceMask = aceprop->aceMask;
580
581 /*
582 * GPFS can't distinguish between WRITE and APPEND on
583 * files, so one being set without the other is an
584 * error. Sorry for the many ()'s :-)
585 */
586
587 if (!fsp->is_directory
588 &&
589 ((((gace->aceMask & ACE4_MASK_WRITE) == 0)
590 && ((gace->aceMask & ACE4_MASK_APPEND) != 0))
591 ||
592 (((gace->aceMask & ACE4_MASK_WRITE) != 0)
593 && ((gace->aceMask & ACE4_MASK_APPEND) == 0)))
594 &&
595 lp_parm_bool(fsp->conn->params->service, "gpfs",
596 "merge_writeappend", True)) {
597 DEBUG(2, ("vfs_gpfs.c: file [%s]: ACE contains "
598 "WRITE^APPEND, setting WRITE|APPEND\n",
599 fsp_str_dbg(fsp)));
600 gace->aceMask |= ACE4_MASK_WRITE|ACE4_MASK_APPEND;
601 }
602
603 gace->aceIFlags = (aceprop->flags&SMB_ACE4_ID_SPECIAL) ? ACE4_IFLAG_SPECIAL_ID : 0;
604
605 if (aceprop->flags&SMB_ACE4_ID_SPECIAL)
606 {
607 switch(aceprop->who.special_id)
608 {
609 case SMB_ACE4_WHO_EVERYONE:
610 gace->aceWho = ACE4_SPECIAL_EVERYONE;
611 break;
612 case SMB_ACE4_WHO_OWNER:
613 gace->aceWho = ACE4_SPECIAL_OWNER;
614 break;
615 case SMB_ACE4_WHO_GROUP:
616 gace->aceWho = ACE4_SPECIAL_GROUP;
617 break;
618 default:
619 DEBUG(8, ("unsupported special_id %d\n", aceprop->who.special_id));
620 continue; /* don't add it !!! */
621 }
622 } else {
623 /* just only for the type safety... */
624 if (aceprop->aceFlags&SMB_ACE4_IDENTIFIER_GROUP)
625 gace->aceWho = aceprop->who.gid;
626 else
627 gace->aceWho = aceprop->who.uid;
628 }
629
630 gacl->acl_nace++;
631 }
632 gacl->acl_len = (char *)gpfs_ace_ptr(gacl, gacl->acl_nace)
633 - (char *)gacl;
634 return gacl;
635 }
636
637 static bool gpfsacl_process_smbacl(vfs_handle_struct *handle,
638 files_struct *fsp,
639 SMB4ACL_T *smbacl)
640 {
641 int ret;
642 struct gpfs_acl *gacl;
643 TALLOC_CTX *mem_ctx = talloc_tos();
644
645 gacl = vfs_gpfs_smbacl2gpfsacl(mem_ctx, fsp, smbacl, true);
646 if (gacl == NULL) { /* out of memory */
647 return False;
648 }
649 ret = smbd_gpfs_putacl(fsp->fsp_name->base_name,
650 GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA, gacl);
651
652 if ((ret != 0) && (errno == EINVAL)) {
653 DEBUG(10, ("Retry without nfs41 control flags\n"));
654 talloc_free(gacl);
655 gacl = vfs_gpfs_smbacl2gpfsacl(mem_ctx, fsp, smbacl, false);
656 if (gacl == NULL) { /* out of memory */
657 return False;
658 }
659 ret = smbd_gpfs_putacl(fsp->fsp_name->base_name,
660 GPFS_PUTACL_STRUCT | GPFS_ACL_SAMBA,
661 gacl);
662 }
663
664 if (ret != 0) {
665 DEBUG(8, ("gpfs_putacl failed with %s\n", strerror(errno)));
666 gpfs_dumpacl(8, gacl);
667 return False;
668 }
669
670 DEBUG(10, ("gpfs_putacl succeeded\n"));
671 return True;
672 }
673
674 static NTSTATUS gpfsacl_set_nt_acl_internal(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
675 {
676 struct gpfs_acl *acl;
677 NTSTATUS result = NT_STATUS_ACCESS_DENIED;
678
679 acl = (struct gpfs_acl*) vfs_gpfs_getacl(talloc_tos(),
680 fsp->fsp_name->base_name,
681 false, 0);
682 if (acl == NULL) {
683 return map_nt_error_from_unix(errno);
684 }
685
686 if (acl->acl_version == GPFS_ACL_VERSION_NFS4) {
687 if (lp_parm_bool(fsp->conn->params->service, "gpfs",
688 "refuse_dacl_protected", false)
689 && (psd->type&SEC_DESC_DACL_PROTECTED)) {
690 DEBUG(2, ("Rejecting unsupported ACL with DACL_PROTECTED bit set\n"));
691 talloc_free(acl);
692 return NT_STATUS_NOT_SUPPORTED;
693 }
694
695 result = smb_set_nt_acl_nfs4(handle,
696 fsp, security_info_sent, psd,
697 gpfsacl_process_smbacl);
698 } else { /* assume POSIX ACL - by default... */
699 result = set_nt_acl(fsp, security_info_sent, psd);
700 }
701
702 talloc_free(acl);
703 return result;
704 }
705
706 static NTSTATUS gpfsacl_fset_nt_acl(vfs_handle_struct *handle, files_struct *fsp, uint32 security_info_sent, const struct security_descriptor *psd)
707 {
708 struct gpfs_config_data *config;
709
710 SMB_VFS_HANDLE_GET_DATA(handle, config,
711 struct gpfs_config_data,
712 return NT_STATUS_INTERNAL_ERROR);
713
714 if (!config->acl) {
715 return SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
716 }
717
718 return gpfsacl_set_nt_acl_internal(handle, fsp, security_info_sent, psd);
719 }
720
721 static SMB_ACL_T gpfs2smb_acl(const struct gpfs_acl *pacl, TALLOC_CTX *mem_ctx)
722 {
723 SMB_ACL_T result;
724 gpfs_aclCount_t i;
725
726 result = sys_acl_init(mem_ctx);
727 if (result == NULL) {
728 errno = ENOMEM;
729 return NULL;
730 }
731
732 result->count = pacl->acl_nace;
733 result->acl = talloc_realloc(result, result->acl, struct smb_acl_entry,
734 result->count);
735 if (result->acl == NULL) {
736 TALLOC_FREE(result);
737 errno = ENOMEM;
738 return NULL;
739 }
740
741 for (i=0; i<pacl->acl_nace; i++) {
742 struct smb_acl_entry *ace = &result->acl[i];
743 const struct gpfs_ace_v1 *g_ace = &pacl->ace_v1[i];
744
745 DEBUG(10, ("Converting type %d id %lu perm %x\n",
746 (int)g_ace->ace_type, (unsigned long)g_ace->ace_who,
747 (int)g_ace->ace_perm));
748
749 switch (g_ace->ace_type) {
750 case GPFS_ACL_USER:
751 ace->a_type = SMB_ACL_USER;
752 ace->info.user.uid = (uid_t)g_ace->ace_who;
753 break;
754 case GPFS_ACL_USER_OBJ:
755 ace->a_type = SMB_ACL_USER_OBJ;
756 break;
757 case GPFS_ACL_GROUP:
758 ace->a_type = SMB_ACL_GROUP;
759 ace->info.group.gid = (gid_t)g_ace->ace_who;
760 break;
761 case GPFS_ACL_GROUP_OBJ:
762 ace->a_type = SMB_ACL_GROUP_OBJ;
763 break;
764 case GPFS_ACL_OTHER:
765 ace->a_type = SMB_ACL_OTHER;
766 break;
767 case GPFS_ACL_MASK:
768 ace->a_type = SMB_ACL_MASK;
769 break;
770 default:
771 DEBUG(10, ("Got invalid ace_type: %d\n",
772 g_ace->ace_type));
773 TALLOC_FREE(result);
774 errno = EINVAL;
775 return NULL;
776 }
777
778 ace->a_perm = 0;
779 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_READ) ?
780 SMB_ACL_READ : 0;
781 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_WRITE) ?
782 SMB_ACL_WRITE : 0;
783 ace->a_perm |= (g_ace->ace_perm & ACL_PERM_EXECUTE) ?
784 SMB_ACL_EXECUTE : 0;
785
786 DEBUGADD(10, ("Converted to %d perm %x\n",
787 ace->a_type, ace->a_perm));
788 }
789
790 return result;
791 }
792
793 static SMB_ACL_T gpfsacl_get_posix_acl(const char *path, gpfs_aclType_t type,
794 TALLOC_CTX *mem_ctx)
795 {
796 struct gpfs_acl *pacl;
797 SMB_ACL_T result = NULL;
798
799 pacl = vfs_gpfs_getacl(talloc_tos(), path, false, type);
800
801 if (pacl == NULL) {
802 DEBUG(10, ("vfs_gpfs_getacl failed for %s with %s\n",
803 path, strerror(errno)));
804 if (errno == 0) {
805 errno = EINVAL;
806 }
807 goto done;
808 }
809
810 if (pacl->acl_version != GPFS_ACL_VERSION_POSIX) {
811 DEBUG(10, ("Got acl version %d, expected %d\n",
812 pacl->acl_version, GPFS_ACL_VERSION_POSIX));
813 errno = EINVAL;
814 goto done;
815 }
816
817 DEBUG(10, ("len: %d, level: %d, version: %d, nace: %d\n",
818 pacl->acl_len, pacl->acl_level, pacl->acl_version,
819 pacl->acl_nace));
820
821 result = gpfs2smb_acl(pacl, mem_ctx);
822 if (result != NULL) {
823 errno = 0;
824 }
825
826 done:
827
828 if (pacl != NULL) {
829 talloc_free(pacl);
830 }
831 if (errno != 0) {
832 TALLOC_FREE(result);
833 }
834 return result;
835 }
836
837 static SMB_ACL_T gpfsacl_sys_acl_get_file(vfs_handle_struct *handle,
838 const char *path_p,
839 SMB_ACL_TYPE_T type,
840 TALLOC_CTX *mem_ctx)
841 {
842 gpfs_aclType_t gpfs_type;
843 struct gpfs_config_data *config;
844
845 SMB_VFS_HANDLE_GET_DATA(handle, config,
846 struct gpfs_config_data,
847 return NULL);
848
849 if (!config->acl) {
850 return SMB_VFS_NEXT_SYS_ACL_GET_FILE(handle, path_p,
851 type, mem_ctx);
852 }
853
854 switch(type) {
855 case SMB_ACL_TYPE_ACCESS:
856 gpfs_type = GPFS_ACL_TYPE_ACCESS;
857 break;
858 case SMB_ACL_TYPE_DEFAULT:
859 gpfs_type = GPFS_ACL_TYPE_DEFAULT;
860 break;
861 default:
862 DEBUG(0, ("Got invalid type: %d\n", type));
863 smb_panic("exiting");
864 }
865
866 return gpfsacl_get_posix_acl(path_p, gpfs_type, mem_ctx);
867 }
868
869 static SMB_ACL_T gpfsacl_sys_acl_get_fd(vfs_handle_struct *handle,
870 files_struct *fsp,
871 TALLOC_CTX *mem_ctx)
872 {
873 struct gpfs_config_data *config;
874
875 SMB_VFS_HANDLE_GET_DATA(handle, config,
876 struct gpfs_config_data,
877 return NULL);
878
879 if (!config->acl) {
880 return SMB_VFS_NEXT_SYS_ACL_GET_FD(handle, fsp, mem_ctx);
881 }
882
883 return gpfsacl_get_posix_acl(fsp->fsp_name->base_name,
884 GPFS_ACL_TYPE_ACCESS, mem_ctx);
885 }
886
887 static int gpfsacl_sys_acl_blob_get_file(vfs_handle_struct *handle,
888 const char *path_p,
889 TALLOC_CTX *mem_ctx,
890 char **blob_description,
891 DATA_BLOB *blob)
892 {
893 struct gpfs_config_data *config;
894 struct gpfs_opaque_acl *acl = NULL;
895 DATA_BLOB aclblob;
896 int result;
897
898 SMB_VFS_HANDLE_GET_DATA(handle, config,
899 struct gpfs_config_data,
900 return -1);
901
902 if (!config->acl) {
903 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FILE(handle, path_p,
904 mem_ctx,
905 blob_description,
906 blob);
907 }
908
909 errno = 0;
910 acl = (struct gpfs_opaque_acl *)
911 vfs_gpfs_getacl(mem_ctx,
912 path_p,
913 true,
914 GPFS_ACL_TYPE_NFS4);
915
916 if (errno) {
917 DEBUG(5, ("vfs_gpfs_getacl finished with errno %d: %s\n",
918 errno, strerror(errno)));
919
920 /* EINVAL means POSIX ACL, bail out on other cases */
921 if (errno != EINVAL) {
922 return -1;
923 }
924 }
925
926 if (acl != NULL) {
927 /*
928 * file has NFSv4 ACL
929 *
930 * we only need the actual ACL blob here
931 * acl_version will always be NFS4 because we asked
932 * for NFS4
933 * acl_type is only used for POSIX ACLs
934 */
935 aclblob.data = (uint8_t*) acl->acl_var_data;
936 aclblob.length = acl->acl_buffer_len;
937
938 *blob_description = talloc_strdup(mem_ctx, "gpfs_nfs4_acl");
939 if (!*blob_description) {
940 talloc_free(acl);
941 errno = ENOMEM;
942 return -1;
943 }
944
945 result = non_posix_sys_acl_blob_get_file_helper(handle, path_p,
946 aclblob,
947 mem_ctx, blob);
948
949 talloc_free(acl);
950 return result;
951 }
952
953 /* fall back to POSIX ACL */
954 return posix_sys_acl_blob_get_file(handle, path_p, mem_ctx,
955 blob_description, blob);
956 }
957
958 static int gpfsacl_sys_acl_blob_get_fd(vfs_handle_struct *handle,
959 files_struct *fsp,
960 TALLOC_CTX *mem_ctx,
961 char **blob_description,
962 DATA_BLOB *blob)
963 {
964 struct gpfs_config_data *config;
965 struct gpfs_opaque_acl *acl = NULL;
966 DATA_BLOB aclblob;
967 int result;
968
969 SMB_VFS_HANDLE_GET_DATA(handle, config,
970 struct gpfs_config_data,
971 return -1);
972
973 if (!config->acl) {
974 return SMB_VFS_NEXT_SYS_ACL_BLOB_GET_FD(handle, fsp, mem_ctx,
975 blob_description, blob);
976 }
977
978 errno = 0;
979 acl = (struct gpfs_opaque_acl *) vfs_gpfs_getacl(mem_ctx,
980 fsp->fsp_name->base_name,
981 true,
982 GPFS_ACL_TYPE_NFS4);
983
984 if (errno) {
985 DEBUG(5, ("vfs_gpfs_getacl finished with errno %d: %s\n",
986 errno, strerror(errno)));
987
988 /* EINVAL means POSIX ACL, bail out on other cases */
989 if (errno != EINVAL) {
990 return -1;
991 }
992 }
993
994 if (acl != NULL) {
995 /*
996 * file has NFSv4 ACL
997 *
998 * we only need the actual ACL blob here
999 * acl_version will always be NFS4 because we asked
1000 * for NFS4
1001 * acl_type is only used for POSIX ACLs
1002 */
1003 aclblob.data = (uint8_t*) acl->acl_var_data;
1004 aclblob.length = acl->acl_buffer_len;
1005
1006 *blob_description = talloc_strdup(mem_ctx, "gpfs_nfs4_acl");
1007 if (!*blob_description) {
1008 talloc_free(acl);
1009 errno = ENOMEM;
1010 return -1;
1011 }
1012
1013 result = non_posix_sys_acl_blob_get_fd_helper(handle, fsp,
1014 aclblob, mem_ctx,
1015 blob);
1016
1017 talloc_free(acl);
1018 return result;
1019 }
1020
1021 /* fall back to POSIX ACL */
1022 return posix_sys_acl_blob_get_fd(handle, fsp, mem_ctx,
1023 blob_description, blob);
1024 }
1025
1026 static struct gpfs_acl *smb2gpfs_acl(const SMB_ACL_T pacl,
1027 SMB_ACL_TYPE_T type)
1028 {
1029 gpfs_aclLen_t len;
1030 struct gpfs_acl *result;
1031 int i;
1032
1033 DEBUG(10, ("smb2gpfs_acl: Got ACL with %d entries\n", pacl->count));
1034
1035 len = offsetof(gpfs_acl_t, ace_v1) + (pacl->count) *
1036 sizeof(gpfs_ace_v1_t);
1037
1038 result = (struct gpfs_acl *)SMB_MALLOC(len);
1039 if (result == NULL) {
1040 errno = ENOMEM;
1041 return result;
1042 }
1043
1044 result->acl_len = len;
1045 result->acl_level = 0;
1046 result->acl_version = GPFS_ACL_VERSION_POSIX;
1047 result->acl_type = (type == SMB_ACL_TYPE_DEFAULT) ?
1048 GPFS_ACL_TYPE_DEFAULT : GPFS_ACL_TYPE_ACCESS;
1049 result->acl_nace = pacl->count;
1050
1051 for (i=0; i<pacl->count; i++) {
1052 const struct smb_acl_entry *ace = &pacl->acl[i];
1053 struct gpfs_ace_v1 *g_ace = &result->ace_v1[i];
1054
1055 DEBUG(10, ("Converting type %d perm %x\n",
1056 (int)ace->a_type, (int)ace->a_perm));
1057
1058 g_ace->ace_perm = 0;
1059
1060 switch(ace->a_type) {
1061 case SMB_ACL_USER:
1062 g_ace->ace_type = GPFS_ACL_USER;
1063 g_ace->ace_who = (gpfs_uid_t)ace->info.user.uid;
1064 break;
1065 case SMB_ACL_USER_OBJ:
1066 g_ace->ace_type = GPFS_ACL_USER_OBJ;
1067 g_ace->ace_perm |= ACL_PERM_CONTROL;
1068 g_ace->ace_who = 0;
1069 break;
1070 case SMB_ACL_GROUP:
1071 g_ace->ace_type = GPFS_ACL_GROUP;
1072 g_ace->ace_who = (gpfs_uid_t)ace->info.group.gid;
1073 break;
1074 case SMB_ACL_GROUP_OBJ:
1075 g_ace->ace_type = GPFS_ACL_GROUP_OBJ;
1076 g_ace->ace_who = 0;
1077 break;
1078 case SMB_ACL_MASK:
1079 g_ace->ace_type = GPFS_ACL_MASK;
1080 g_ace->ace_perm = 0x8f;
1081 g_ace->ace_who = 0;
1082 break;
1083 case SMB_ACL_OTHER:
1084 g_ace->ace_type = GPFS_ACL_OTHER;
1085 g_ace->ace_who = 0;
1086 break;
1087 default:
1088 DEBUG(10, ("Got invalid ace_type: %d\n", ace->a_type));
1089 errno = EINVAL;
1090 SAFE_FREE(result);
1091 return NULL;
1092 }
1093
1094 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_READ) ?
1095 ACL_PERM_READ : 0;
1096 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_WRITE) ?
1097 ACL_PERM_WRITE : 0;
1098 g_ace->ace_perm |= (ace->a_perm & SMB_ACL_EXECUTE) ?
1099 ACL_PERM_EXECUTE : 0;
1100
1101 DEBUGADD(10, ("Converted to %d id %d perm %x\n",
1102 g_ace->ace_type, g_ace->ace_who, g_ace->ace_perm));
1103 }
1104
1105 return result;
1106 }
1107
1108 static int gpfsacl_sys_acl_set_file(vfs_handle_struct *handle,
1109 const char *name,
1110 SMB_ACL_TYPE_T type,
1111 SMB_ACL_T theacl)
1112 {
1113 struct gpfs_acl *gpfs_acl;
1114 int result;
1115 struct gpfs_config_data *config;
1116
1117 SMB_VFS_HANDLE_GET_DATA(handle, config,
1118 struct gpfs_config_data,
1119 return -1);
1120
1121 if (!config->acl) {
1122 return SMB_VFS_NEXT_SYS_ACL_SET_FILE(handle, name, type, theacl);
1123 }
1124
1125 gpfs_acl = smb2gpfs_acl(theacl, type);
1126 if (gpfs_acl == NULL) {
1127 return -1;
1128 }
1129
1130 result = smbd_gpfs_putacl(discard_const_p(char, name),
1131 GPFS_PUTACL_STRUCT|GPFS_ACL_SAMBA, gpfs_acl);
1132
1133 SAFE_FREE(gpfs_acl);
1134 return result;
1135 }
1136
1137 static int gpfsacl_sys_acl_set_fd(vfs_handle_struct *handle,
1138 files_struct *fsp,
1139 SMB_ACL_T theacl)
1140 {
1141 struct gpfs_config_data *config;
1142
1143 SMB_VFS_HANDLE_GET_DATA(handle, config,
1144 struct gpfs_config_data,
1145 return -1);
1146
1147 if (!config->acl) {
1148 return SMB_VFS_NEXT_SYS_ACL_SET_FD(handle, fsp, theacl);
1149 }
1150
1151 return gpfsacl_sys_acl_set_file(handle, fsp->fsp_name->base_name,
1152 SMB_ACL_TYPE_ACCESS, theacl);
1153 }
1154
1155 static int gpfsacl_sys_acl_delete_def_file(vfs_handle_struct *handle,
1156 const char *path)
1157 {
1158 struct gpfs_config_data *config;
1159
1160 SMB_VFS_HANDLE_GET_DATA(handle, config,
1161 struct gpfs_config_data,
1162 return -1);
1163
1164 if (!config->acl) {
1165 return SMB_VFS_NEXT_SYS_ACL_DELETE_DEF_FILE(handle, path);
1166 }
1167
1168 errno = ENOTSUP;
1169 return -1;
1170 }
1171
1172 /*
1173 * Assumed: mode bits are shiftable and standard
1174 * Output: the new aceMask field for an smb nfs4 ace
1175 */
1176 static uint32 gpfsacl_mask_filter(uint32 aceType, uint32 aceMask, uint32 rwx)
1177 {
1178 const uint32 posix_nfs4map[3] = {
1179 SMB_ACE4_EXECUTE, /* execute */
1180 SMB_ACE4_WRITE_DATA | SMB_ACE4_APPEND_DATA, /* write; GPFS specific */
1181 SMB_ACE4_READ_DATA /* read */
1182 };
1183 int i;
1184 uint32_t posix_mask = 0x01;
1185 uint32_t posix_bit;
1186 uint32_t nfs4_bits;
1187
1188 for(i=0; i<3; i++) {
1189 nfs4_bits = posix_nfs4map[i];
1190 posix_bit = rwx & posix_mask;
1191
1192 if (aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE) {
1193 if (posix_bit)
1194 aceMask |= nfs4_bits;
1195 else
1196 aceMask &= ~nfs4_bits;
1197 } else {
1198 /* add deny bits when suitable */
1199 if (!posix_bit)
1200 aceMask |= nfs4_bits;
1201 else
1202 aceMask &= ~nfs4_bits;
1203 } /* other ace types are unexpected */
1204
1205 posix_mask <<= 1;
1206 }
1207
1208 return aceMask;
1209 }
1210
1211 static int gpfsacl_emu_chmod(vfs_handle_struct *handle,
1212 const char *path, mode_t mode)
1213 {
1214 SMB4ACL_T *pacl = NULL;
1215 int result;
1216 bool haveAllowEntry[SMB_ACE4_WHO_EVERYONE + 1] = {False, False, False, False};
1217 int i;
1218 files_struct fake_fsp; /* TODO: rationalize parametrization */
1219 SMB4ACE_T *smbace;
1220 TALLOC_CTX *frame = talloc_stackframe();
1221
1222 DEBUG(10, ("gpfsacl_emu_chmod invoked for %s mode %o\n", path, mode));
1223
1224 result = gpfs_get_nfs4_acl(frame, path, &pacl);
1225 if (result) {
1226 TALLOC_FREE(frame);
1227 return result;
1228 }
1229
1230 if (mode & ~(S_IRWXU | S_IRWXG | S_IRWXO)) {
1231 DEBUG(2, ("WARNING: cutting extra mode bits %o on %s\n", mode, path));
1232 }
1233
1234 for (smbace=smb_first_ace4(pacl); smbace!=NULL; smbace = smb_next_ace4(smbace)) {
1235 SMB_ACE4PROP_T *ace = smb_get_ace4(smbace);
1236 uint32_t specid = ace->who.special_id;
1237
1238 if (ace->flags&SMB_ACE4_ID_SPECIAL &&
1239 ace->aceType<=SMB_ACE4_ACCESS_DENIED_ACE_TYPE &&
1240 specid <= SMB_ACE4_WHO_EVERYONE) {
1241
1242 uint32_t newMask;
1243
1244 if (ace->aceType==SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE)
1245 haveAllowEntry[specid] = True;
1246
1247 /* mode >> 6 for @owner, mode >> 3 for @group,
1248 * mode >> 0 for @everyone */
1249 newMask = gpfsacl_mask_filter(ace->aceType, ace->aceMask,
1250 mode >> ((SMB_ACE4_WHO_EVERYONE - specid) * 3));
1251 if (ace->aceMask!=newMask) {
1252 DEBUG(10, ("ace changed for %s (%o -> %o) id=%d\n",
1253 path, ace->aceMask, newMask, specid));
1254 }
1255 ace->aceMask = newMask;
1256 }
1257 }
1258
1259 /* make sure we have at least ALLOW entries
1260 * for all the 3 special ids (@EVERYONE, @OWNER, @GROUP)
1261 * - if necessary
1262 */
1263 for(i = SMB_ACE4_WHO_OWNER; i<=SMB_ACE4_WHO_EVERYONE; i++) {
1264 SMB_ACE4PROP_T ace;
1265
1266 if (haveAllowEntry[i]==True)
1267 continue;
1268
1269 ZERO_STRUCT(ace);
1270 ace.aceType = SMB_ACE4_ACCESS_ALLOWED_ACE_TYPE;
1271 ace.flags |= SMB_ACE4_ID_SPECIAL;
1272 ace.who.special_id = i;
1273
1274 if (i==SMB_ACE4_WHO_GROUP) /* not sure it's necessary... */
1275 ace.aceFlags |= SMB_ACE4_IDENTIFIER_GROUP;
1276
1277 ace.aceMask = gpfsacl_mask_filter(ace.aceType, ace.aceMask,
1278 mode >> ((SMB_ACE4_WHO_EVERYONE - i) * 3));
1279
1280 /* don't add unnecessary aces */
1281 if (!ace.aceMask)
1282 continue;
1283
1284 /* we add it to the END - as windows expects allow aces */
1285 smb_add_ace4(pacl, &ace);
1286 DEBUG(10, ("Added ALLOW ace for %s, mode=%o, id=%d, aceMask=%x\n",
1287 path, mode, i, ace.aceMask));
1288 }
1289
1290 /* don't add complementary DENY ACEs here */
1291 ZERO_STRUCT(fake_fsp);
1292 fake_fsp.fsp_name = synthetic_smb_fname(
1293 frame, path, NULL, NULL);
1294 if (fake_fsp.fsp_name == NULL) {
1295 errno = ENOMEM;
1296 TALLOC_FREE(frame);
1297 return -1;
1298 }
1299 /* put the acl */
1300 if (gpfsacl_process_smbacl(handle, &fake_fsp, pacl) == False) {
1301 TALLOC_FREE(frame);
1302 return -1;
1303 }
1304
1305 TALLOC_FREE(frame);
1306 return 0; /* ok for [f]chmod */
1307 }
1308
1309 static int vfs_gpfs_chmod(vfs_handle_struct *handle, const char *path, mode_t mode)
1310 {
1311 struct smb_filename *smb_fname_cpath;
1312 int rc;
1313
1314 smb_fname_cpath = synthetic_smb_fname(talloc_tos(), path, NULL, NULL);
1315 if (smb_fname_cpath == NULL) {
1316 errno = ENOMEM;
1317 return -1;
1318 }
1319
1320 if (SMB_VFS_NEXT_STAT(handle, smb_fname_cpath) != 0) {
1321 return -1;
1322 }
1323
1324 /* avoid chmod() if possible, to preserve acls */
1325 if ((smb_fname_cpath->st.st_ex_mode & ~S_IFMT) == mode) {
1326 return 0;
1327 }
1328
1329 rc = gpfsacl_emu_chmod(handle, path, mode);
1330 if (rc == 1)
1331 return SMB_VFS_NEXT_CHMOD(handle, path, mode);
1332 return rc;
1333 }
1334
1335 static int vfs_gpfs_fchmod(vfs_handle_struct *handle, files_struct *fsp, mode_t mode)
1336 {
1337 SMB_STRUCT_STAT st;
1338 int rc;
1339
1340 if (SMB_VFS_NEXT_FSTAT(handle, fsp, &st) != 0) {
1341 return -1;
1342 }
1343
1344 /* avoid chmod() if possible, to preserve acls */
1345 if ((st.st_ex_mode & ~S_IFMT) == mode) {
1346 return 0;
1347 }
1348
1349 rc = gpfsacl_emu_chmod(handle, fsp->fsp_name->base_name,
1350 mode);
1351 if (rc == 1)
1352 return SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
1353 return rc;
1354 }
1355
1356 static int gpfs_set_xattr(struct vfs_handle_struct *handle, const char *path,
1357 const char *name, const void *value, size_t size, int flags){
1358 struct xattr_DOSATTRIB dosattrib;
1359 enum ndr_err_code ndr_err;
1360 DATA_BLOB blob;
1361 unsigned int dosmode=0;
1362 struct gpfs_winattr attrs;
1363 int ret = 0;
1364 struct gpfs_config_data *config;
1365
1366 SMB_VFS_HANDLE_GET_DATA(handle, config,
1367 struct gpfs_config_data,
1368 return -1);
1369
1370 if (!config->winattr) {
1371 DEBUG(10, ("gpfs_set_xattr:name is %s -> next\n",name));
1372 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1373 }
1374
1375 DEBUG(10, ("gpfs_set_xattr: %s \n",path));
1376
1377 /* Only handle DOS Attributes */
1378 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1379 DEBUG(5, ("gpfs_set_xattr:name is %s\n",name));
1380 return SMB_VFS_NEXT_SETXATTR(handle,path,name,value,size,flags);
1381 }
1382
1383 blob.data = discard_const_p(uint8_t, value);
1384 blob.length = size;
1385
1386 ndr_err = ndr_pull_struct_blob(&blob, talloc_tos(), &dosattrib,
1387 (ndr_pull_flags_fn_t)ndr_pull_xattr_DOSATTRIB);
1388
1389 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
1390 DEBUG(1, ("gpfs_set_xattr: bad ndr decode "
1391 "from EA on file %s: Error = %s\n",
1392 path, ndr_errstr(ndr_err)));
1393 return false;
1394 }
1395
1396 if (dosattrib.version != 3) {
1397 DEBUG(1, ("gpfs_set_xattr: expected dosattrib version 3, got "
1398 "%d\n", (int)dosattrib.version));
1399 return false;
1400 }
1401 if (!(dosattrib.info.info3.valid_flags & XATTR_DOSINFO_ATTRIB)) {
1402 DEBUG(10, ("gpfs_set_xattr: XATTR_DOSINFO_ATTRIB not "
1403 "valid, ignoring\n"));
1404 return true;
1405 }
1406
1407 dosmode = dosattrib.info.info3.attrib;
1408
1409 attrs.winAttrs = 0;
1410 /*Just map RD_ONLY, ARCHIVE, SYSTEM HIDDEN and SPARSE. Ignore the others*/
1411 if (dosmode & FILE_ATTRIBUTE_ARCHIVE){
1412 attrs.winAttrs |= GPFS_WINATTR_ARCHIVE;
1413 }
1414 if (dosmode & FILE_ATTRIBUTE_HIDDEN){
1415 attrs.winAttrs |= GPFS_WINATTR_HIDDEN;
1416 }
1417 if (dosmode & FILE_ATTRIBUTE_SYSTEM){
1418 attrs.winAttrs |= GPFS_WINATTR_SYSTEM;
1419 }
1420 if (dosmode & FILE_ATTRIBUTE_READONLY){
1421 attrs.winAttrs |= GPFS_WINATTR_READONLY;
1422 }
1423 if (dosmode & FILE_ATTRIBUTE_SPARSE) {
1424 attrs.winAttrs |= GPFS_WINATTR_SPARSE_FILE;
1425 }
1426
1427
1428 ret = set_gpfs_winattrs(discard_const_p(char, path),
1429 GPFS_WINATTR_SET_ATTRS, &attrs);
1430 if ( ret == -1){
1431 if (errno == ENOSYS) {
1432 return SMB_VFS_NEXT_SETXATTR(handle, path, name, value,
1433 size, flags);
1434 }
1435
1436 DEBUG(1, ("gpfs_set_xattr:Set GPFS attributes failed %d\n",ret));
1437 return -1;
1438 }
1439
1440 DEBUG(10, ("gpfs_set_xattr:Set attributes: 0x%x\n",attrs.winAttrs));
1441 return 0;
1442 }
1443
1444 static ssize_t gpfs_get_xattr(struct vfs_handle_struct *handle, const char *path,
1445 const char *name, void *value, size_t size){
1446 char *attrstr = value;
1447 unsigned int dosmode = 0;
1448 struct gpfs_winattr attrs;
1449 int ret = 0;
1450 struct gpfs_config_data *config;
1451
1452 SMB_VFS_HANDLE_GET_DATA(handle, config,
1453 struct gpfs_config_data,
1454 return -1);
1455
1456 if (!config->winattr) {
1457 DEBUG(10, ("gpfs_get_xattr:name is %s -> next\n",name));
1458 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1459 }
1460
1461 DEBUG(10, ("gpfs_get_xattr: %s \n",path));
1462
1463 /* Only handle DOS Attributes */
1464 if (strcmp(name,SAMBA_XATTR_DOS_ATTRIB) != 0){
1465 DEBUG(5, ("gpfs_get_xattr:name is %s\n",name));
1466 return SMB_VFS_NEXT_GETXATTR(handle,path,name,value,size);
1467 }
1468
1469 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1470 if ( ret == -1){
1471 int dbg_lvl;
1472
1473 if (errno == ENOSYS) {
1474 return SMB_VFS_NEXT_GETXATTR(handle, path, name, value,
1475 size);
1476 }
1477
1478 if (errno != EPERM && errno != EACCES) {
1479 dbg_lvl = 1;
1480 } else {
1481 dbg_lvl = 5;
1482 }
1483 DEBUG(dbg_lvl, ("gpfs_get_xattr: Get GPFS attributes failed: "
1484 "%d (%s)\n", ret, strerror(errno)));
1485 return -1;
1486 }
1487
1488 DEBUG(10, ("gpfs_get_xattr:Got attributes: 0x%x\n",attrs.winAttrs));
1489
1490 /*Just map RD_ONLY, ARCHIVE, SYSTEM, HIDDEN and SPARSE. Ignore the others*/
1491 if (attrs.winAttrs & GPFS_WINATTR_ARCHIVE){
1492 dosmode |= FILE_ATTRIBUTE_ARCHIVE;
1493 }
1494 if (attrs.winAttrs & GPFS_WINATTR_HIDDEN){
1495 dosmode |= FILE_ATTRIBUTE_HIDDEN;
1496 }
1497 if (attrs.winAttrs & GPFS_WINATTR_SYSTEM){
1498 dosmode |= FILE_ATTRIBUTE_SYSTEM;
1499 }
1500 if (attrs.winAttrs & GPFS_WINATTR_READONLY){
1501 dosmode |= FILE_ATTRIBUTE_READONLY;
1502 }
1503 if (attrs.winAttrs & GPFS_WINATTR_SPARSE_FILE) {
1504 dosmode |= FILE_ATTRIBUTE_SPARSE;
1505 }
1506
1507 snprintf(attrstr, size, "0x%2.2x",
1508 (unsigned int)(dosmode & SAMBA_ATTRIBUTES_MASK));
1509 DEBUG(10, ("gpfs_get_xattr: returning %s\n",attrstr));
1510 return 4;
1511 }
1512
1513 #if defined(HAVE_FSTATAT)
1514 static int stat_with_capability(struct vfs_handle_struct *handle,
1515 struct smb_filename *smb_fname, int flag)
1516 {
1517 int fd = -1;
1518 bool b;
1519 char *dir_name;
1520 const char *rel_name = NULL;
1521 struct stat st;
1522 int ret = -1;
1523
1524 b = parent_dirname(talloc_tos(), smb_fname->base_name,
1525 &dir_name, &rel_name);
1526 if (!b) {
1527 errno = ENOMEM;
1528 return -1;
1529 }
1530
1531 fd = open(dir_name, O_RDONLY, 0);
1532 TALLOC_FREE(dir_name);
1533 if (fd == -1) {
1534 return -1;
1535 }
1536
1537 set_effective_capability(DAC_OVERRIDE_CAPABILITY);
1538 ret = fstatat(fd, rel_name, &st, flag);
1539 drop_effective_capability(DAC_OVERRIDE_CAPABILITY);
1540
1541 close(fd);
1542
1543 if (ret == 0) {
1544 init_stat_ex_from_stat(
1545 &smb_fname->st, &st,
1546 lp_fake_directory_create_times(SNUM(handle->conn)));
1547 }
1548
1549 return ret;
1550 }
1551 #endif
1552
1553 static int vfs_gpfs_stat(struct vfs_handle_struct *handle,
1554 struct smb_filename *smb_fname)
1555 {
1556 struct gpfs_winattr attrs;
1557 char *fname = NULL;
1558 NTSTATUS status;
1559 int ret;
1560 struct gpfs_config_data *config;
1561
1562 SMB_VFS_HANDLE_GET_DATA(handle, config,
1563 struct gpfs_config_data,
1564 return -1);
1565
1566 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
1567 #if defined(HAVE_FSTATAT)
1568 if (ret == -1 && errno == EACCES) {
1569 DEBUG(10, ("Trying stat with capability for %s\n",
1570 smb_fname->base_name));
1571 ret = stat_with_capability(handle, smb_fname, 0);
1572 }
1573 #endif
1574 if (ret == -1) {
1575 return -1;
1576 }
1577
1578 if (!config->winattr) {
1579 return 0;
1580 }
1581
1582 status = get_full_smb_filename(talloc_tos(), smb_fname, &fname);
1583 if (!NT_STATUS_IS_OK(status)) {
1584 errno = map_errno_from_nt_status(status);
1585 return -1;
1586 }
1587 ret = get_gpfs_winattrs(discard_const_p(char, fname), &attrs);
1588 TALLOC_FREE(fname);
1589 if (ret == 0) {
1590 smb_fname->st.st_ex_calculated_birthtime = false;
1591 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1592 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1593 smb_fname->st.vfs_private = attrs.winAttrs;
1594 }
1595 return 0;
1596 }
1597
1598 static int vfs_gpfs_fstat(struct vfs_handle_struct *handle,
1599 struct files_struct *fsp, SMB_STRUCT_STAT *sbuf)
1600 {
1601 struct gpfs_winattr attrs;
1602 int ret;
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 ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
1610 if (ret == -1) {
1611 return -1;
1612 }
1613 if ((fsp->fh == NULL) || (fsp->fh->fd == -1)) {
1614 return 0;
1615 }
1616 if (!config->winattr) {
1617 return 0;
1618 }
1619
1620 ret = smbd_fget_gpfs_winattrs(fsp->fh->fd, &attrs);
1621 if (ret == 0) {
1622 sbuf->st_ex_calculated_birthtime = false;
1623 sbuf->st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1624 sbuf->st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1625 }
1626 return 0;
1627 }
1628
1629 static int vfs_gpfs_lstat(struct vfs_handle_struct *handle,
1630 struct smb_filename *smb_fname)
1631 {
1632 struct gpfs_winattr attrs;
1633 char *path = NULL;
1634 NTSTATUS status;
1635 int ret;
1636 struct gpfs_config_data *config;
1637
1638 SMB_VFS_HANDLE_GET_DATA(handle, config,
1639 struct gpfs_config_data,
1640 return -1);
1641
1642 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
1643 #if defined(HAVE_FSTATAT)
1644 if (ret == -1 && errno == EACCES) {
1645 DEBUG(10, ("Trying lstat with capability for %s\n",
1646 smb_fname->base_name));
1647 ret = stat_with_capability(handle, smb_fname,
1648 AT_SYMLINK_NOFOLLOW);
1649 }
1650 #endif
1651
1652 if (ret == -1) {
1653 return -1;
1654 }
1655 if (!config->winattr) {
1656 return 0;
1657 }
1658
1659 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1660 if (!NT_STATUS_IS_OK(status)) {
1661 errno = map_errno_from_nt_status(status);
1662 return -1;
1663 }
1664 ret = get_gpfs_winattrs(discard_const_p(char, path), &attrs);
1665 TALLOC_FREE(path);
1666 if (ret == 0) {
1667 smb_fname->st.st_ex_calculated_birthtime = false;
1668 smb_fname->st.st_ex_btime.tv_sec = attrs.creationTime.tv_sec;
1669 smb_fname->st.st_ex_btime.tv_nsec = attrs.creationTime.tv_nsec;
1670 smb_fname->st.vfs_private = attrs.winAttrs;
1671 }
1672 return 0;
1673 }
1674
1675 static int vfs_gpfs_ntimes(struct vfs_handle_struct *handle,
1676 const struct smb_filename *smb_fname,
1677 struct smb_file_time *ft)
1678 {
1679
1680 struct gpfs_winattr attrs;
1681 int ret;
1682 char *path = NULL;
1683 NTSTATUS status;
1684 struct gpfs_config_data *config;
1685
1686 SMB_VFS_HANDLE_GET_DATA(handle, config,
1687 struct gpfs_config_data,
1688 return -1);
1689
1690 status = get_full_smb_filename(talloc_tos(), smb_fname, &path);
1691 if (!NT_STATUS_IS_OK(status)) {
1692 errno = map_errno_from_nt_status(status);
1693 return -1;
1694 }
1695
1696 /* Try to use gpfs_set_times if it is enabled and available */
1697 if (config->settimes) {
1698 ret = smbd_gpfs_set_times_path(path, ft);
1699
1700 if (ret == 0 || (ret == -1 && errno != ENOSYS)) {
1701 return ret;
1702 }
1703 }
1704
1705 DEBUG(10,("gpfs_set_times() not available or disabled, "
1706 "use ntimes and winattr\n"));
1707
1708 ret = SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
1709 if(ret == -1){
1710 /* don't complain if access was denied */
1711 if (errno != EPERM && errno != EACCES) {
1712 DEBUG(1,("vfs_gpfs_ntimes: SMB_VFS_NEXT_NTIMES failed:"
1713 "%s", strerror(errno)));
1714 }
1715 return -1;
1716 }
1717
1718 if(null_timespec(ft->create_time)){
1719 DEBUG(10,("vfs_gpfs_ntimes:Create Time is NULL\n"));
1720 return 0;
1721 }
1722
1723 if (!config->winattr) {
1724 return 0;
1725 }
1726
1727 attrs.winAttrs = 0;
1728 attrs.creationTime.tv_sec = ft->create_time.tv_sec;
1729 attrs.creationTime.tv_nsec = ft->create_time.tv_nsec;
1730
1731 ret = set_gpfs_winattrs(discard_const_p(char, path),
1732 GPFS_WINATTR_SET_CREATION_TIME, &attrs);
1733 if(ret == -1 && errno != ENOSYS){
1734 DEBUG(1,("vfs_gpfs_ntimes: set GPFS ntimes failed %d\n",ret));
1735 return -1;
1736 }
1737 return 0;
1738
1739 }
1740
1741 static int vfs_gpfs_fallocate(struct vfs_handle_struct *handle,
1742 struct files_struct *fsp, enum vfs_fallocate_mode mode,
1743 off_t offset, off_t len)
1744 {
1745 int ret;
1746 struct gpfs_config_data *config;
1747
1748 SMB_VFS_HANDLE_GET_DATA(handle, config,
1749 struct gpfs_config_data,
1750 return -1);
1751
1752 if (!config->prealloc) {
1753 /* you should better not run fallocate() on GPFS at all */
1754 errno = ENOTSUP;
1755 return -1;
1756 }
1757
1758 if (mode == VFS_FALLOCATE_KEEP_SIZE) {
1759 DEBUG(10, ("Unsupported VFS_FALLOCATE_KEEP_SIZE\n"));
1760 errno = ENOTSUP;
1761 return -1;
1762 }
1763
1764 ret = smbd_gpfs_prealloc(fsp->fh->fd, offset, len);
1765
1766 if (ret == -1 && errno != ENOSYS) {
1767 DEBUG(0, ("GPFS prealloc failed: %s\n", strerror(errno)));
1768 } else if (ret == -1 && errno == ENOSYS) {
1769 DEBUG(10, ("GPFS prealloc not supported.\n"));
1770 } else {
1771 DEBUG(10, ("GPFS prealloc succeeded.\n"));
1772 }
1773
1774 return ret;
1775 }
1776
1777 static int vfs_gpfs_ftruncate(vfs_handle_struct *handle, files_struct *fsp,
1778 off_t len)
1779 {
1780 int result;
1781 struct gpfs_config_data *config;
1782
1783 SMB_VFS_HANDLE_GET_DATA(handle, config,
1784 struct gpfs_config_data,
1785 return -1);
1786
1787 if (!config->ftruncate) {
1788 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1789 }
1790
1791 result = smbd_gpfs_ftruncate(fsp->fh->fd, len);
1792 if ((result == -1) && (errno == ENOSYS)) {
1793 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, len);
1794 }
1795 return result;
1796 }
1797
1798 static bool vfs_gpfs_is_offline(struct vfs_handle_struct *handle,
1799 const struct smb_filename *fname,
1800 SMB_STRUCT_STAT *sbuf)
1801 {
1802 struct gpfs_winattr attrs;
1803 char *path = NULL;
1804 NTSTATUS status;
1805 struct gpfs_config_data *config;
1806
1807 SMB_VFS_HANDLE_GET_DATA(handle, config,
1808 struct gpfs_config_data,
1809 return -1);
1810
1811 if (!config->winattr) {
1812 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1813 }
1814
1815 status = get_full_smb_filename(talloc_tos(), fname, &path);
1816 if (!NT_STATUS_IS_OK(status)) {
1817 errno = map_errno_from_nt_status(status);
1818 return -1;
1819 }
1820
1821 if (VALID_STAT(*sbuf)) {
1822 attrs.winAttrs = sbuf->vfs_private;
1823 } else {
1824 int ret;
1825 ret = get_gpfs_winattrs(path, &attrs);
1826
1827 if (ret == -1) {
1828 TALLOC_FREE(path);
1829 return false;
1830 }
1831 }
1832 if ((attrs.winAttrs & GPFS_WINATTR_OFFLINE) != 0) {
1833 DEBUG(10, ("%s is offline\n", path));
1834 TALLOC_FREE(path);
1835 return true;
1836 }
1837 DEBUG(10, ("%s is online\n", path));
1838 TALLOC_FREE(path);
1839 return SMB_VFS_NEXT_IS_OFFLINE(handle, fname, sbuf);
1840 }
1841
1842 static bool vfs_gpfs_aio_force(struct vfs_handle_struct *handle,
1843 struct files_struct *fsp)
1844 {
1845 return vfs_gpfs_is_offline(handle, fsp->fsp_name, &fsp->fsp_name->st);
1846 }
1847
1848 static ssize_t vfs_gpfs_sendfile(vfs_handle_struct *handle, int tofd,
1849 files_struct *fsp, const DATA_BLOB *hdr,
1850 off_t offset, size_t n)
1851 {
1852 if ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0) {
1853 errno = ENOSYS;
1854 return -1;
1855 }
1856 return SMB_VFS_NEXT_SENDFILE(handle, tofd, fsp, hdr, offset, n);
1857 }
1858
1859 static int vfs_gpfs_connect(struct vfs_handle_struct *handle,
1860 const char *service, const char *user)
1861 {
1862 struct gpfs_config_data *config;
1863 int ret;
1864
1865 smbd_gpfs_lib_init();
1866
1867 config = talloc_zero(handle->conn, struct gpfs_config_data);
1868 if (!config) {
1869 DEBUG(0, ("talloc_zero() failed\n"));
1870 errno = ENOMEM;
1871 return -1;
1872 }
1873
1874 ret = SMB_VFS_NEXT_CONNECT(handle, service, user);
1875 if (ret < 0) {
1876 TALLOC_FREE(config);
1877 return ret;
1878 }
1879
1880 config->sharemodes = lp_parm_bool(SNUM(handle->conn), "gpfs",
1881 "sharemodes", true);
1882
1883 config->leases = lp_parm_bool(SNUM(handle->conn), "gpfs",
1884 "leases", true);
1885
1886 config->hsm = lp_parm_bool(SNUM(handle->conn), "gpfs",
1887 "hsm", false);
1888
1889 config->syncio = lp_parm_bool(SNUM(handle->conn), "gpfs",
1890 "syncio", false);
1891
1892 config->winattr = lp_parm_bool(SNUM(handle->conn), "gpfs",
1893 "winattr", false);
1894
1895 config->ftruncate = lp_parm_bool(SNUM(handle->conn), "gpfs",
1896 "ftruncate", true);
1897
1898 config->getrealfilename = lp_parm_bool(SNUM(handle->conn), "gpfs",
1899 "getrealfilename", true);
1900
1901 config->dfreequota = lp_parm_bool(SNUM(handle->conn), "gpfs",
1902 "dfreequota", false);
1903
1904 config->prealloc = lp_parm_bool(SNUM(handle->conn), "gpfs",
1905 "prealloc", true);
1906
1907 config->acl = lp_parm_bool(SNUM(handle->conn), "gpfs", "acl", true);
1908
1909 config->settimes = lp_parm_bool(SNUM(handle->conn), "gpfs",
1910 "settimes", true);
1911 config->recalls = lp_parm_bool(SNUM(handle->conn), "gpfs",
1912 "recalls", true);
1913
1914 SMB_VFS_HANDLE_SET_DATA(handle, config,
1915 NULL, struct gpfs_config_data,
1916 return -1);
1917
1918 if (config->leases) {
1919 /*
1920 * GPFS lease code is based on kernel oplock code
1921 * so make sure it is turned on
1922 */
1923 if (!lp_kernel_oplocks(SNUM(handle->conn))) {
1924 DEBUG(5, ("Enabling kernel oplocks for "
1925 "gpfs:leases to work\n"));
1926 lp_do_parameter(SNUM(handle->conn), "kernel oplocks",
1927 "true");
1928 }
1929
1930 /*
1931 * as the kernel does not properly support Level II oplocks
1932 * and GPFS leases code is based on kernel infrastructure, we
1933 * need to turn off Level II oplocks if gpfs:leases is enabled
1934 */
1935 if (lp_level2_oplocks(SNUM(handle->conn))) {
1936 DEBUG(5, ("gpfs:leases are enabled, disabling "
1937 "Level II oplocks\n"));
1938 lp_do_parameter(SNUM(handle->conn), "level2 oplocks",
1939 "false");
1940 }
1941 }
1942
1943 return 0;
1944 }
1945
1946 static int vfs_gpfs_get_quotas(const char *path, uid_t uid, gid_t gid,
1947 int *fset_id,
1948 struct gpfs_quotaInfo *qi_user,
1949 struct gpfs_quotaInfo *qi_group,
1950 struct gpfs_quotaInfo *qi_fset)
1951 {
1952 int err;
1953 char *dir_path;
1954 bool b;
1955
1956 /*
1957 * We want to always use the directory to get the fileset id,
1958 * because files might have a share mode. We also do not want
1959 * to get the parent directory when there is already a
1960 * directory to avoid stepping in a different fileset. The
1961 * path passed here is currently either "." or a filename, so
1962 * this is ok. The proper solution would be having a way to
1963 * query the fileset id without opening the file.
1964 */
1965 b = parent_dirname(talloc_tos(), path, &dir_path, NULL);
1966 if (!b) {
1967 errno = ENOMEM;
1968 return -1;
1969 }
1970
1971 DEBUG(10, ("path %s, directory %s\n", path, dir_path));
1972
1973 err = get_gpfs_fset_id(dir_path, fset_id);
1974 if (err) {
1975 DEBUG(0, ("Get fset id failed path %s, dir %s, errno %d.\n",
1976 path, dir_path, errno));
1977 return err;
1978 }
1979
1980 err = get_gpfs_quota(path, GPFS_USRQUOTA, uid, qi_user);
1981 if (err) {
1982 return err;
1983 }
1984
1985 err = get_gpfs_quota(path, GPFS_GRPQUOTA, gid, qi_group);
1986 if (err) {
1987 return err;
1988 }
1989
1990 err = get_gpfs_quota(path, GPFS_FILESETQUOTA, *fset_id, qi_fset);
1991 if (err) {
1992 return err;
1993 }
1994
1995 return 0;
1996 }
1997
1998 static void vfs_gpfs_disk_free_quota(struct gpfs_quotaInfo qi, time_t cur_time,
1999 uint64_t *dfree, uint64_t *dsize)
2000 {
2001 uint64_t usage, limit;
2002
2003 /*
2004 * The quota reporting is done in units of 1024 byte blocks, but
2005 * sys_fsusage uses units of 512 byte blocks, adjust the block number
2006 * accordingly. Also filter possibly negative usage counts from gpfs.
2007 */
2008 usage = qi.blockUsage < 0 ? 0 : (uint64_t)qi.blockUsage * 2;
2009 limit = (uint64_t)qi.blockHardLimit * 2;
2010
2011 /*
2012 * When the grace time for the exceeded soft block quota has been
2013 * exceeded, the soft block quota becomes an additional hard limit.
2014 */
2015 if (qi.blockSoftLimit &&
2016 qi.blockGraceTime && cur_time > qi.blockGraceTime) {
2017 /* report disk as full */
2018 *dfree = 0;
2019 *dsize = MIN(*dsize, usage);
2020 }
2021
2022 if (!qi.blockHardLimit)
2023 return;
2024
2025 if (usage >= limit) {
2026 /* report disk as full */
2027 *dfree = 0;
2028 *dsize = MIN(*dsize, usage);
2029
2030 } else {
2031 /* limit has not been reached, determine "free space" */
2032 *dfree = MIN(*dfree, limit - usage);
2033 *dsize = MIN(*dsize, limit);
2034 }
2035 }
2036
2037 static uint64_t vfs_gpfs_disk_free(vfs_handle_struct *handle, const char *path,
2038 bool small_query, uint64_t *bsize,
2039 uint64_t *dfree, uint64_t *dsize)
2040 {
2041 struct security_unix_token *utok;
2042 struct gpfs_quotaInfo qi_user, qi_group, qi_fset;
2043 struct gpfs_config_data *config;
2044 int err, fset_id;
2045 time_t cur_time;
2046
2047 SMB_VFS_HANDLE_GET_DATA(handle, config, struct gpfs_config_data,
2048 return (uint64_t)-1);
2049 if (!config->dfreequota) {
2050 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
2051 bsize, dfree, dsize);
2052 }
2053
2054 err = sys_fsusage(path, dfree, dsize);
2055 if (err) {
2056 DEBUG (0, ("Could not get fs usage, errno %d\n", errno));
2057 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
2058 bsize, dfree, dsize);
2059 }
2060
2061 /* sys_fsusage returns units of 512 bytes */
2062 *bsize = 512;
2063
2064 DEBUG(10, ("fs dfree %llu, dsize %llu\n",
2065 (unsigned long long)*dfree, (unsigned long long)*dsize));
2066
2067 utok = handle->conn->session_info->unix_token;
2068 err = vfs_gpfs_get_quotas(path, utok->uid, utok->gid, &fset_id,
2069 &qi_user, &qi_group, &qi_fset);
2070 if (err) {
2071 return SMB_VFS_NEXT_DISK_FREE(handle, path, small_query,
2072 bsize, dfree, dsize);
2073 }
2074
2075 cur_time = time(NULL);
2076
2077 /* Adjust free space and size according to quota limits. */
2078 vfs_gpfs_disk_free_quota(qi_user, cur_time, dfree, dsize);
2079 vfs_gpfs_disk_free_quota(qi_group, cur_time, dfree, dsize);
2080
2081 /* Id 0 indicates the default quota, not an actual quota */
2082 if (fset_id != 0) {
2083 vfs_gpfs_disk_free_quota(qi_fset, cur_time, dfree, dsize);
2084 }
2085
2086 disk_norm(small_query, bsize, dfree, dsize);
2087 return *dfree;
2088 }
2089
2090 static uint32_t vfs_gpfs_capabilities(struct vfs_handle_struct *handle,
2091 enum timestamp_set_resolution *p_ts_res)
2092 {
2093 struct gpfs_config_data *config;
2094 uint32_t next;
2095
2096 next = SMB_VFS_NEXT_FS_CAPABILITIES(handle, p_ts_res);
2097
2098 SMB_VFS_HANDLE_GET_DATA(handle, config,
2099 struct gpfs_config_data,
2100 return next);
2101
2102 if (config->hsm) {
2103 next |= FILE_SUPPORTS_REMOTE_STORAGE;
2104 }
2105 return next;
2106 }
2107
2108 static int vfs_gpfs_open(struct vfs_handle_struct *handle,
2109 struct smb_filename *smb_fname, files_struct *fsp,
2110 int flags, mode_t mode)
2111 {
2112 struct gpfs_config_data *config;
2113
2114 SMB_VFS_HANDLE_GET_DATA(handle, config,
2115 struct gpfs_config_data,
2116 return -1);
2117
2118 if (config->hsm && !config->recalls) {
2119 if (VALID_STAT(smb_fname->st) &&
2120 (smb_fname->st.vfs_private & GPFS_WINATTR_OFFLINE)) {
2121 DEBUG(10, ("Refusing access to offline file %s\n",
2122 fsp_str_dbg(fsp)));
2123 errno = EACCES;
2124 return -1;
2125 }
2126 }
2127
2128 if (config->syncio) {
2129 flags |= O_SYNC;
2130 }
2131 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
2132 }
2133
2134 static ssize_t vfs_gpfs_pread(vfs_handle_struct *handle, files_struct *fsp,
2135 void *data, size_t n, off_t offset)
2136 {
2137 ssize_t ret;
2138
2139 ret = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2140
2141 DEBUG(10, ("vfs_private = %x\n",
2142 (unsigned int)fsp->fsp_name->st.vfs_private));
2143
2144 if ((ret != -1) &&
2145 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
2146 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
2147 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
2148 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2149 fsp->fsp_name->base_name);
2150 }
2151
2152 return ret;
2153 }
2154
2155 struct vfs_gpfs_pread_state {
2156 struct files_struct *fsp;
2157 ssize_t ret;
2158 int err;
2159 };
2160
2161 static void vfs_gpfs_pread_done(struct tevent_req *subreq);
2162
2163 static struct tevent_req *vfs_gpfs_pread_send(struct vfs_handle_struct *handle,
2164 TALLOC_CTX *mem_ctx,
2165 struct tevent_context *ev,
2166 struct files_struct *fsp,
2167 void *data, size_t n,
2168 off_t offset)
2169 {
2170 struct tevent_req *req, *subreq;
2171 struct vfs_gpfs_pread_state *state;
2172
2173 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pread_state);
2174 if (req == NULL) {
2175 return NULL;
2176 }
2177 state->fsp = fsp;
2178 subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp, data,
2179 n, offset);
2180 if (tevent_req_nomem(subreq, req)) {
2181 return tevent_req_post(req, ev);
2182 }
2183 tevent_req_set_callback(subreq, vfs_gpfs_pread_done, req);
2184 return req;
2185 }
2186
2187 static void vfs_gpfs_pread_done(struct tevent_req *subreq)
2188 {
2189 struct tevent_req *req = tevent_req_callback_data(
2190 subreq, struct tevent_req);
2191 struct vfs_gpfs_pread_state *state = tevent_req_data(
2192 req, struct vfs_gpfs_pread_state);
2193
2194 state->ret = SMB_VFS_PREAD_RECV(subreq, &state->err);
2195 TALLOC_FREE(subreq);
2196 tevent_req_done(req);
2197 }
2198
2199 static ssize_t vfs_gpfs_pread_recv(struct tevent_req *req, int *err)
2200 {
2201 struct vfs_gpfs_pread_state *state = tevent_req_data(
2202 req, struct vfs_gpfs_pread_state);
2203 struct files_struct *fsp = state->fsp;
2204
2205 if (tevent_req_is_unix_error(req, err)) {
2206 return -1;
2207 }
2208 *err = state->err;
2209
2210 DEBUG(10, ("vfs_private = %x\n",
2211 (unsigned int)fsp->fsp_name->st.vfs_private));
2212
2213 if ((state->ret != -1) &&
2214 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
2215 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
2216 DEBUG(10, ("sending notify\n"));
2217 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
2218 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2219 fsp->fsp_name->base_name);
2220 }
2221
2222 return state->ret;
2223 }
2224
2225 static ssize_t vfs_gpfs_pwrite(vfs_handle_struct *handle, files_struct *fsp,
2226 const void *data, size_t n, off_t offset)
2227 {
2228 ssize_t ret;
2229
2230 ret = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2231
2232 DEBUG(10, ("vfs_private = %x\n",
2233 (unsigned int)fsp->fsp_name->st.vfs_private));
2234
2235 if ((ret != -1) &&
2236 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
2237 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
2238 notify_fname(handle->conn, NOTIFY_ACTION_MODIFIED,
2239 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2240 fsp->fsp_name->base_name);
2241 }
2242
2243 return ret;
2244 }
2245
2246 struct vfs_gpfs_pwrite_state {
2247 struct files_struct *fsp;
2248 ssize_t ret;
2249 int err;
2250 };
2251
2252 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq);
2253
2254 static struct tevent_req *vfs_gpfs_pwrite_send(
2255 struct vfs_handle_struct *handle,
2256 TALLOC_CTX *mem_ctx,
2257 struct tevent_context *ev,
2258 struct files_struct *fsp,
2259 const void *data, size_t n,
2260 off_t offset)
2261 {
2262 struct tevent_req *req, *subreq;
2263 struct vfs_gpfs_pwrite_state *state;
2264
2265 req = tevent_req_create(mem_ctx, &state, struct vfs_gpfs_pwrite_state);
2266 if (req == NULL) {
2267 return NULL;
2268 }
2269 state->fsp = fsp;
2270 subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp, data,
2271 n, offset);
2272 if (tevent_req_nomem(subreq, req)) {
2273 return tevent_req_post(req, ev);
2274 }
2275 tevent_req_set_callback(subreq, vfs_gpfs_pwrite_done, req);
2276 return req;
2277 }
2278
2279 static void vfs_gpfs_pwrite_done(struct tevent_req *subreq)
2280 {
2281 struct tevent_req *req = tevent_req_callback_data(
2282 subreq, struct tevent_req);
2283 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
2284 req, struct vfs_gpfs_pwrite_state);
2285
2286 state->ret = SMB_VFS_PWRITE_RECV(subreq, &state->err);
2287 TALLOC_FREE(subreq);
2288 tevent_req_done(req);
2289 }
2290
2291 static ssize_t vfs_gpfs_pwrite_recv(struct tevent_req *req, int *err)
2292 {
2293 struct vfs_gpfs_pwrite_state *state = tevent_req_data(
2294 req, struct vfs_gpfs_pwrite_state);
2295 struct files_struct *fsp = state->fsp;
2296
2297 if (tevent_req_is_unix_error(req, err)) {
2298 return -1;
2299 }
2300 *err = state->err;
2301
2302 DEBUG(10, ("vfs_private = %x\n",
2303 (unsigned int)fsp->fsp_name->st.vfs_private));
2304
2305 if ((state->ret != -1) &&
2306 ((fsp->fsp_name->st.vfs_private & GPFS_WINATTR_OFFLINE) != 0)) {
2307 fsp->fsp_name->st.vfs_private &= ~GPFS_WINATTR_OFFLINE;
2308 DEBUG(10, ("sending notify\n"));
2309 notify_fname(fsp->conn, NOTIFY_ACTION_MODIFIED,
2310 FILE_NOTIFY_CHANGE_ATTRIBUTES,
2311 fsp->fsp_name->base_name);
2312 }
2313
2314 return state->ret;
2315 }
2316
2317
2318 static struct vfs_fn_pointers vfs_gpfs_fns = {
2319 .connect_fn = vfs_gpfs_connect,
2320 .disk_free_fn = vfs_gpfs_disk_free,
2321 .fs_capabilities_fn = vfs_gpfs_capabilities,
2322 .kernel_flock_fn = vfs_gpfs_kernel_flock,
2323 .linux_setlease_fn = vfs_gpfs_setlease,
2324 .get_real_filename_fn = vfs_gpfs_get_real_filename,
2325 .fget_nt_acl_fn = gpfsacl_fget_nt_acl,
2326 .get_nt_acl_fn = gpfsacl_get_nt_acl,
2327 .fset_nt_acl_fn = gpfsacl_fset_nt_acl,
2328 .sys_acl_get_file_fn = gpfsacl_sys_acl_get_file,
2329 .sys_acl_get_fd_fn = gpfsacl_sys_acl_get_fd,
2330 .sys_acl_blob_get_file_fn = gpfsacl_sys_acl_blob_get_file,
2331 .sys_acl_blob_get_fd_fn = gpfsacl_sys_acl_blob_get_fd,
2332 .sys_acl_set_file_fn = gpfsacl_sys_acl_set_file,
2333 .sys_acl_set_fd_fn = gpfsacl_sys_acl_set_fd,
2334 .sys_acl_delete_def_file_fn = gpfsacl_sys_acl_delete_def_file,
2335 .chmod_fn = vfs_gpfs_chmod,
2336 .fchmod_fn = vfs_gpfs_fchmod,
2337 .close_fn = vfs_gpfs_close,
2338 .setxattr_fn = gpfs_set_xattr,
2339 .getxattr_fn = gpfs_get_xattr,
2340 .stat_fn = vfs_gpfs_stat,
2341 .fstat_fn = vfs_gpfs_fstat,
2342 .lstat_fn = vfs_gpfs_lstat,
2343 .ntimes_fn = vfs_gpfs_ntimes,
2344 .is_offline_fn = vfs_gpfs_is_offline,
2345 .aio_force_fn = vfs_gpfs_aio_force,
2346 .sendfile_fn = vfs_gpfs_sendfile,
2347 .fallocate_fn = vfs_gpfs_fallocate,
2348 .open_fn = vfs_gpfs_open,
2349 .pread_fn = vfs_gpfs_pread,
2350 .pread_send_fn = vfs_gpfs_pread_send,
2351 .pread_recv_fn = vfs_gpfs_pread_recv,
2352 .pwrite_fn = vfs_gpfs_pwrite,
2353 .pwrite_send_fn = vfs_gpfs_pwrite_send,
2354 .pwrite_recv_fn = vfs_gpfs_pwrite_recv,
2355 .ftruncate_fn = vfs_gpfs_ftruncate
2356 };
2357
2358 NTSTATUS vfs_gpfs_init(void);
2359 NTSTATUS vfs_gpfs_init(void)
2360 {
2361 init_gpfs();
2362
2363 return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "gpfs",
2364 &vfs_gpfs_fns);
2365 }
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