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vfs_fruit: add fruit:convert_adouble parameter
[Samba.git] / source3 / modules / vfs_fruit.c
blobce5ae38505e8d0b1e3a8d92038a9630446b2fba3
1 /*
2 * OS X and Netatalk interoperability VFS module for Samba-3.x
3 *
4 * Copyright (C) Ralph Boehme, 2013, 2014
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 3 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, see <http://www.gnu.org/licenses/>.
18 */
19
20 #include "includes.h"
21 #include "MacExtensions.h"
22 #include "smbd/smbd.h"
23 #include "system/filesys.h"
24 #include "lib/util/time.h"
25 #include "system/shmem.h"
26 #include "locking/proto.h"
27 #include "smbd/globals.h"
28 #include "messages.h"
29 #include "libcli/security/security.h"
30 #include "../libcli/smb/smb2_create_ctx.h"
31 #include "lib/util/tevent_ntstatus.h"
32 #include "lib/util/tevent_unix.h"
33 #include "offload_token.h"
34 #include "string_replace.h"
35 #include "hash_inode.h"
36 #include "lib/adouble.h"
37 #include "lib/util_macstreams.h"
38
39 /*
40 * Enhanced OS X and Netatalk compatibility
41 * ========================================
42 *
43 * This modules takes advantage of vfs_streams_xattr and
44 * vfs_catia. VFS modules vfs_fruit and vfs_streams_xattr must be
45 * loaded in the correct order:
46 *
47 * vfs modules = catia fruit streams_xattr
48 *
49 * The module intercepts the OS X special streams "AFP_AfpInfo" and
50 * "AFP_Resource" and handles them in a special way. All other named
51 * streams are deferred to vfs_streams_xattr.
52 *
53 * The OS X client maps all NTFS illegal characters to the Unicode
54 * private range. This module optionally stores the characters using
55 * their native ASCII encoding using vfs_catia. If you're not enabling
56 * this feature, you can skip catia from vfs modules.
57 *
58 * Finally, open modes are optionally checked against Netatalk AFP
59 * share modes.
60 *
61 * The "AFP_AfpInfo" named stream is a binary blob containing OS X
62 * extended metadata for files and directories. This module optionally
63 * reads and stores this metadata in a way compatible with Netatalk 3
64 * which stores the metadata in an EA "org.netatalk.metadata". Cf
65 * source3/include/MacExtensions.h for a description of the binary
66 * blobs content.
67 *
68 * The "AFP_Resource" named stream may be arbitrarily large, thus it
69 * can't be stored in an xattr on most filesystem. ZFS on Solaris is
70 * the only available filesystem where xattrs can be of any size and
71 * the OS supports using the file APIs for xattrs.
72 *
73 * The AFP_Resource stream is stored in an AppleDouble file prepending
74 * "._" to the filename. On Solaris with ZFS the stream is optionally
75 * stored in an EA "org.netatalk.resource".
76 *
77 *
78 * Extended Attributes
79 * ===================
80 *
81 * The OS X SMB client sends xattrs as ADS too. For xattr interop with
82 * other protocols you may want to adjust the xattr names the VFS
83 * module vfs_streams_xattr uses for storing ADS's. This defaults to
84 * user.DosStream.ADS_NAME:$DATA and can be changed by specifying
85 * these module parameters:
86 *
87 * streams_xattr:prefix = user.
88 * streams_xattr:store_stream_type = false
89 *
90 *
91 * TODO
92 * ====
93 *
94 * - log diagnostic if any needed VFS module is not loaded
95 * (eg with lp_vfs_objects())
96 * - add tests
97 */
98
99 static int vfs_fruit_debug_level = DBGC_VFS;
100
101 static struct global_fruit_config {
102 bool nego_aapl; /* client negotiated AAPL */
103
104 } global_fruit_config;
105
106 #undef DBGC_CLASS
107 #define DBGC_CLASS vfs_fruit_debug_level
108
109 #define FRUIT_PARAM_TYPE_NAME "fruit"
110
111 enum apple_fork {APPLE_FORK_DATA, APPLE_FORK_RSRC};
112
113 enum fruit_rsrc {FRUIT_RSRC_STREAM, FRUIT_RSRC_ADFILE, FRUIT_RSRC_XATTR};
114 enum fruit_meta {FRUIT_META_STREAM, FRUIT_META_NETATALK};
115 enum fruit_locking {FRUIT_LOCKING_NETATALK, FRUIT_LOCKING_NONE};
116 enum fruit_encoding {FRUIT_ENC_NATIVE, FRUIT_ENC_PRIVATE};
117
118 struct fruit_config_data {
119 enum fruit_rsrc rsrc;
120 enum fruit_meta meta;
121 enum fruit_locking locking;
122 enum fruit_encoding encoding;
123 bool use_aapl; /* config from smb.conf */
124 bool use_copyfile;
125 bool readdir_attr_enabled;
126 bool unix_info_enabled;
127 bool copyfile_enabled;
128 bool veto_appledouble;
129 bool posix_rename;
130 bool aapl_zero_file_id;
131 const char *model;
132 bool time_machine;
133 off_t time_machine_max_size;
134 bool convert_adouble;
135 bool wipe_intentionally_left_blank_rfork;
136 bool delete_empty_adfiles;
137
138 /*
139 * Additional options, all enabled by default,
140 * possibly useful for analyzing performance. The associated
141 * operations with each of them may be expensive, so having
142 * the chance to disable them individually gives a chance
143 * tweaking the setup for the particular usecase.
144 */
145 bool readdir_attr_rsize;
146 bool readdir_attr_finder_info;
147 bool readdir_attr_max_access;
148 /* Recursion guard. Will go away when we have STATX. */
149 bool in_openat_pathref_fsp;
150 };
151
152 static const struct enum_list fruit_rsrc[] = {
153 {FRUIT_RSRC_STREAM, "stream"}, /* pass on to vfs_streams_xattr */
154 {FRUIT_RSRC_ADFILE, "file"}, /* ._ AppleDouble file */
155 {FRUIT_RSRC_XATTR, "xattr"}, /* Netatalk compatible xattr (ZFS only) */
156 { -1, NULL}
157 };
158
159 static const struct enum_list fruit_meta[] = {
160 {FRUIT_META_STREAM, "stream"}, /* pass on to vfs_streams_xattr */
161 {FRUIT_META_NETATALK, "netatalk"}, /* Netatalk compatible xattr */
162 { -1, NULL}
163 };
164
165 static const struct enum_list fruit_locking[] = {
166 {FRUIT_LOCKING_NETATALK, "netatalk"}, /* synchronize locks with Netatalk */
167 {FRUIT_LOCKING_NONE, "none"},
168 { -1, NULL}
169 };
170
171 static const struct enum_list fruit_encoding[] = {
172 {FRUIT_ENC_NATIVE, "native"}, /* map unicode private chars to ASCII */
173 {FRUIT_ENC_PRIVATE, "private"}, /* keep unicode private chars */
174 { -1, NULL}
175 };
176
177 struct fio {
178 vfs_handle_struct *handle;
179 files_struct *fsp; /* backlink to itself */
180
181 /* tcon config handle */
182 struct fruit_config_data *config;
183
184 /* Backend fsp for AppleDouble file, can be NULL */
185 files_struct *ad_fsp;
186 /* link from adouble_open_from_base_fsp() to fio */
187 struct fio *real_fio;
188
189 /* Denote stream type, meta or rsrc */
190 adouble_type_t type;
191
192 /*
193 * AFP_AfpInfo stream created, but not written yet, thus still a fake
194 * pipe fd. This is set to true in fruit_open_meta if there was no
195 * existing stream but the caller requested O_CREAT. It is later set to
196 * false when we get a write on the stream that then does open and
197 * create the stream.
198 */
199 bool fake_fd;
200 int flags;
201 int mode;
202 };
203
204 /*****************************************************************************
205 * Helper functions
206 *****************************************************************************/
207
208 static struct adouble *ad_get_meta_fsp(TALLOC_CTX *ctx,
209 vfs_handle_struct *handle,
210 const struct smb_filename *smb_fname)
211 {
212 NTSTATUS status;
213 struct adouble *ad = NULL;
214 struct smb_filename *smb_fname_cp = NULL;
215 struct fruit_config_data *config = NULL;
216
217 if (smb_fname->fsp != NULL) {
218 return ad_get(ctx, handle, smb_fname, ADOUBLE_META);
219 }
220
221 SMB_VFS_HANDLE_GET_DATA(handle,
222 config,
223 struct fruit_config_data,
224 return NULL);
225
226 if (config->in_openat_pathref_fsp) {
227 return NULL;
228 }
229
230 smb_fname_cp = cp_smb_filename(ctx,
231 smb_fname);
232 if (smb_fname_cp == NULL) {
233 return NULL;
234 }
235 TALLOC_FREE(smb_fname_cp->stream_name);
236 config->in_openat_pathref_fsp = true;
237 status = openat_pathref_fsp(handle->conn->cwd_fsp,
238 smb_fname_cp);
239 config->in_openat_pathref_fsp = false;
240 if (!NT_STATUS_IS_OK(status)) {
241 TALLOC_FREE(smb_fname_cp);
242 return NULL;
243 }
244
245 ad = ad_get(ctx, handle, smb_fname_cp, ADOUBLE_META);
246 TALLOC_FREE(smb_fname_cp);
247 return ad;
248 }
249
250 static struct fio *fruit_get_complete_fio(vfs_handle_struct *handle,
251 files_struct *fsp)
252 {
253 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
254
255 if (fio == NULL) {
256 return NULL;
257 }
258
259 if (fio->real_fio != NULL) {
260 /*
261 * This is an fsp from adouble_open_from_base_fsp()
262 * we should just pass this to the next
263 * module.
264 */
265 return NULL;
266 }
267
268 return fio;
269 }
270
271 /**
272 * Initialize config struct from our smb.conf config parameters
273 **/
274 static int init_fruit_config(vfs_handle_struct *handle)
275 {
276 struct fruit_config_data *config;
277 int enumval;
278 const char *tm_size_str = NULL;
279
280 config = talloc_zero(handle->conn, struct fruit_config_data);
281 if (!config) {
282 DEBUG(1, ("talloc_zero() failed\n"));
283 errno = ENOMEM;
284 return -1;
285 }
286
287 /*
288 * Versions up to Samba 4.5.x had a spelling bug in the
289 * fruit:resource option calling lp_parm_enum with
290 * "res*s*ource" (ie two s).
291 *
292 * In Samba 4.6 we accept both the wrong and the correct
293 * spelling, in Samba 4.7 the bad spelling will be removed.
294 */
295 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
296 "ressource", fruit_rsrc, FRUIT_RSRC_ADFILE);
297 if (enumval == -1) {
298 DEBUG(1, ("value for %s: resource type unknown\n",
299 FRUIT_PARAM_TYPE_NAME));
300 return -1;
301 }
302 config->rsrc = (enum fruit_rsrc)enumval;
303
304 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
305 "resource", fruit_rsrc, enumval);
306 if (enumval == -1) {
307 DEBUG(1, ("value for %s: resource type unknown\n",
308 FRUIT_PARAM_TYPE_NAME));
309 return -1;
310 }
311 config->rsrc = (enum fruit_rsrc)enumval;
312
313 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
314 "metadata", fruit_meta, FRUIT_META_NETATALK);
315 if (enumval == -1) {
316 DEBUG(1, ("value for %s: metadata type unknown\n",
317 FRUIT_PARAM_TYPE_NAME));
318 return -1;
319 }
320 config->meta = (enum fruit_meta)enumval;
321
322 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
323 "locking", fruit_locking, FRUIT_LOCKING_NONE);
324 if (enumval == -1) {
325 DEBUG(1, ("value for %s: locking type unknown\n",
326 FRUIT_PARAM_TYPE_NAME));
327 return -1;
328 }
329 config->locking = (enum fruit_locking)enumval;
330
331 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
332 "encoding", fruit_encoding, FRUIT_ENC_PRIVATE);
333 if (enumval == -1) {
334 DEBUG(1, ("value for %s: encoding type unknown\n",
335 FRUIT_PARAM_TYPE_NAME));
336 return -1;
337 }
338 config->encoding = (enum fruit_encoding)enumval;
339
340 if (config->rsrc == FRUIT_RSRC_ADFILE) {
341 config->veto_appledouble = lp_parm_bool(SNUM(handle->conn),
342 FRUIT_PARAM_TYPE_NAME,
343 "veto_appledouble",
344 true);
345 }
346
347 config->use_aapl = lp_parm_bool(
348 -1, FRUIT_PARAM_TYPE_NAME, "aapl", true);
349
350 config->time_machine = lp_parm_bool(
351 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME, "time machine", false);
352
353 config->unix_info_enabled = lp_parm_bool(
354 -1, FRUIT_PARAM_TYPE_NAME, "nfs_aces", true);
355
356 config->use_copyfile = lp_parm_bool(-1, FRUIT_PARAM_TYPE_NAME,
357 "copyfile", false);
358
359 config->posix_rename = lp_parm_bool(
360 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME, "posix_rename", true);
361
362 config->aapl_zero_file_id =
363 lp_parm_bool(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
364 "zero_file_id", true);
365
366 config->readdir_attr_rsize = lp_parm_bool(
367 SNUM(handle->conn), "readdir_attr", "aapl_rsize", true);
368
369 config->readdir_attr_finder_info = lp_parm_bool(
370 SNUM(handle->conn), "readdir_attr", "aapl_finder_info", true);
371
372 config->readdir_attr_max_access = lp_parm_bool(
373 SNUM(handle->conn), "readdir_attr", "aapl_max_access", true);
374
375 config->model = lp_parm_const_string(
376 -1, FRUIT_PARAM_TYPE_NAME, "model", "MacSamba");
377
378 tm_size_str = lp_parm_const_string(
379 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
380 "time machine max size", NULL);
381 if (tm_size_str != NULL) {
382 config->time_machine_max_size = conv_str_size(tm_size_str);
383 }
384
385 config->convert_adouble = lp_parm_bool(
386 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
387 "convert_adouble", true);
388
389 config->wipe_intentionally_left_blank_rfork = lp_parm_bool(
390 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
391 "wipe_intentionally_left_blank_rfork", false);
392
393 config->delete_empty_adfiles = lp_parm_bool(
394 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
395 "delete_empty_adfiles", false);
396
397 SMB_VFS_HANDLE_SET_DATA(handle, config,
398 NULL, struct fruit_config_data,
399 return -1);
400
401 return 0;
402 }
403
404 static bool add_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
405 struct stream_struct **streams,
406 const char *name, off_t size,
407 off_t alloc_size)
408 {
409 struct stream_struct *tmp;
410
411 tmp = talloc_realloc(mem_ctx, *streams, struct stream_struct,
412 (*num_streams)+1);
413 if (tmp == NULL) {
414 return false;
415 }
416
417 tmp[*num_streams].name = talloc_asprintf(tmp, "%s:$DATA", name);
418 if (tmp[*num_streams].name == NULL) {
419 return false;
420 }
421
422 tmp[*num_streams].size = size;
423 tmp[*num_streams].alloc_size = alloc_size;
424
425 *streams = tmp;
426 *num_streams += 1;
427 return true;
428 }
429
430 static bool filter_empty_rsrc_stream(unsigned int *num_streams,
431 struct stream_struct **streams)
432 {
433 struct stream_struct *tmp = *streams;
434 unsigned int i;
435
436 if (*num_streams == 0) {
437 return true;
438 }
439
440 for (i = 0; i < *num_streams; i++) {
441 if (strequal_m(tmp[i].name, AFPRESOURCE_STREAM)) {
442 break;
443 }
444 }
445
446 if (i == *num_streams) {
447 return true;
448 }
449
450 if (tmp[i].size > 0) {
451 return true;
452 }
453
454 TALLOC_FREE(tmp[i].name);
455 ARRAY_DEL_ELEMENT(tmp, i, *num_streams);
456 *num_streams -= 1;
457 return true;
458 }
459
460 static bool del_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
461 struct stream_struct **streams,
462 const char *name)
463 {
464 struct stream_struct *tmp = *streams;
465 unsigned int i;
466
467 if (*num_streams == 0) {
468 return true;
469 }
470
471 for (i = 0; i < *num_streams; i++) {
472 if (strequal_m(tmp[i].name, name)) {
473 break;
474 }
475 }
476
477 if (i == *num_streams) {
478 return true;
479 }
480
481 TALLOC_FREE(tmp[i].name);
482 ARRAY_DEL_ELEMENT(tmp, i, *num_streams);
483 *num_streams -= 1;
484 return true;
485 }
486
487 static bool ad_empty_finderinfo(const struct adouble *ad)
488 {
489 int cmp;
490 char emptybuf[ADEDLEN_FINDERI] = {0};
491 char *fi = NULL;
492
493 fi = ad_get_entry(ad, ADEID_FINDERI);
494 if (fi == NULL) {
495 DBG_ERR("Missing FinderInfo in struct adouble [%p]\n", ad);
496 return false;
497 }
498
499 cmp = memcmp(emptybuf, fi, ADEDLEN_FINDERI);
500 return (cmp == 0);
501 }
502
503 static bool ai_empty_finderinfo(const AfpInfo *ai)
504 {
505 int cmp;
506 char emptybuf[ADEDLEN_FINDERI] = {0};
507
508 cmp = memcmp(emptybuf, &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
509 return (cmp == 0);
510 }
511
512 /**
513 * Update btime with btime from Netatalk
514 **/
515 static void update_btime(vfs_handle_struct *handle,
516 struct smb_filename *smb_fname)
517 {
518 uint32_t t;
519 struct timespec creation_time = {0};
520 struct adouble *ad;
521 struct fruit_config_data *config = NULL;
522
523 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
524 return);
525
526 switch (config->meta) {
527 case FRUIT_META_STREAM:
528 return;
529 case FRUIT_META_NETATALK:
530 /* Handled below */
531 break;
532 default:
533 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
534 return;
535 }
536
537 ad = ad_get_meta_fsp(talloc_tos(), handle, smb_fname);
538 if (ad == NULL) {
539 return;
540 }
541 if (ad_getdate(ad, AD_DATE_UNIX | AD_DATE_CREATE, &t) != 0) {
542 TALLOC_FREE(ad);
543 return;
544 }
545 TALLOC_FREE(ad);
546
547 creation_time.tv_sec = convert_uint32_t_to_time_t(t);
548 update_stat_ex_create_time(&smb_fname->st, creation_time);
549
550 return;
551 }
552
553 /**
554 * Map an access mask to a Netatalk single byte byte range lock
555 **/
556 static off_t access_to_netatalk_brl(enum apple_fork fork_type,
557 uint32_t access_mask)
558 {
559 off_t offset;
560
561 switch (access_mask) {
562 case FILE_READ_DATA:
563 offset = AD_FILELOCK_OPEN_RD;
564 break;
565
566 case FILE_WRITE_DATA:
567 case FILE_APPEND_DATA:
568 offset = AD_FILELOCK_OPEN_WR;
569 break;
570
571 default:
572 offset = AD_FILELOCK_OPEN_NONE;
573 break;
574 }
575
576 if (fork_type == APPLE_FORK_RSRC) {
577 if (offset == AD_FILELOCK_OPEN_NONE) {
578 offset = AD_FILELOCK_RSRC_OPEN_NONE;
579 } else {
580 offset += 2;
581 }
582 }
583
584 return offset;
585 }
586
587 /**
588 * Map a deny mode to a Netatalk brl
589 **/
590 static off_t denymode_to_netatalk_brl(enum apple_fork fork_type,
591 uint32_t deny_mode)
592 {
593 off_t offset = 0;
594
595 switch (deny_mode) {
596 case DENY_READ:
597 offset = AD_FILELOCK_DENY_RD;
598 break;
599
600 case DENY_WRITE:
601 offset = AD_FILELOCK_DENY_WR;
602 break;
603
604 default:
605 smb_panic("denymode_to_netatalk_brl: bad deny mode\n");
606 }
607
608 if (fork_type == APPLE_FORK_RSRC) {
609 offset += 2;
610 }
611
612 return offset;
613 }
614
615 /**
616 * Call fcntl() with an exclusive F_GETLK request in order to
617 * determine if there's an existing shared lock
618 *
619 * @return true if the requested lock was found or any error occurred
620 * false if the lock was not found
621 **/
622 static bool test_netatalk_lock(files_struct *fsp, off_t in_offset)
623 {
624 bool result;
625 off_t offset = in_offset;
626 off_t len = 1;
627 int type = F_WRLCK;
628 pid_t pid = 0;
629
630 result = SMB_VFS_GETLOCK(fsp, &offset, &len, &type, &pid);
631 if (result == false) {
632 return true;
633 }
634
635 if (type != F_UNLCK) {
636 return true;
637 }
638
639 return false;
640 }
641
642 static NTSTATUS fruit_check_access(vfs_handle_struct *handle,
643 files_struct *fsp,
644 uint32_t access_mask,
645 uint32_t share_mode)
646 {
647 NTSTATUS status = NT_STATUS_OK;
648 off_t off;
649 bool share_for_read = (share_mode & FILE_SHARE_READ);
650 bool share_for_write = (share_mode & FILE_SHARE_WRITE);
651 bool netatalk_already_open_for_reading = false;
652 bool netatalk_already_open_for_writing = false;
653 bool netatalk_already_open_with_deny_read = false;
654 bool netatalk_already_open_with_deny_write = false;
655 struct GUID req_guid = GUID_random();
656
657 /* FIXME: hardcoded data fork, add resource fork */
658 enum apple_fork fork_type = APPLE_FORK_DATA;
659
660 DBG_DEBUG("fruit_check_access: %s, am: %s/%s, sm: 0x%x\n",
661 fsp_str_dbg(fsp),
662 access_mask & FILE_READ_DATA ? "READ" :"-",
663 access_mask & FILE_WRITE_DATA ? "WRITE" : "-",
664 share_mode);
665
666 if (fsp_get_io_fd(fsp) == -1) {
667 return NT_STATUS_OK;
668 }
669
670 /* Read NetATalk opens and deny modes on the file. */
671 netatalk_already_open_for_reading = test_netatalk_lock(fsp,
672 access_to_netatalk_brl(fork_type,
673 FILE_READ_DATA));
674
675 netatalk_already_open_with_deny_read = test_netatalk_lock(fsp,
676 denymode_to_netatalk_brl(fork_type,
677 DENY_READ));
678
679 netatalk_already_open_for_writing = test_netatalk_lock(fsp,
680 access_to_netatalk_brl(fork_type,
681 FILE_WRITE_DATA));
682
683 netatalk_already_open_with_deny_write = test_netatalk_lock(fsp,
684 denymode_to_netatalk_brl(fork_type,
685 DENY_WRITE));
686
687 /* If there are any conflicts - sharing violation. */
688 if ((access_mask & FILE_READ_DATA) &&
689 netatalk_already_open_with_deny_read) {
690 return NT_STATUS_SHARING_VIOLATION;
691 }
692
693 if (!share_for_read &&
694 netatalk_already_open_for_reading) {
695 return NT_STATUS_SHARING_VIOLATION;
696 }
697
698 if ((access_mask & FILE_WRITE_DATA) &&
699 netatalk_already_open_with_deny_write) {
700 return NT_STATUS_SHARING_VIOLATION;
701 }
702
703 if (!share_for_write &&
704 netatalk_already_open_for_writing) {
705 return NT_STATUS_SHARING_VIOLATION;
706 }
707
708 if (!(access_mask & FILE_READ_DATA)) {
709 /*
710 * Nothing we can do here, we need read access
711 * to set locks.
712 */
713 return NT_STATUS_OK;
714 }
715
716 /* Set NetAtalk locks matching our access */
717 if (access_mask & FILE_READ_DATA) {
718 off = access_to_netatalk_brl(fork_type, FILE_READ_DATA);
719 req_guid.time_hi_and_version = __LINE__;
720 status = do_lock(
721 fsp,
722 talloc_tos(),
723 &req_guid,
724 fsp->op->global->open_persistent_id,
725 1,
726 off,
727 READ_LOCK,
728 POSIX_LOCK,
729 NULL,
730 NULL);
731
732 if (!NT_STATUS_IS_OK(status)) {
733 return status;
734 }
735 }
736
737 if (!share_for_read) {
738 off = denymode_to_netatalk_brl(fork_type, DENY_READ);
739 req_guid.time_hi_and_version = __LINE__;
740 status = do_lock(
741 fsp,
742 talloc_tos(),
743 &req_guid,
744 fsp->op->global->open_persistent_id,
745 1,
746 off,
747 READ_LOCK,
748 POSIX_LOCK,
749 NULL,
750 NULL);
751
752 if (!NT_STATUS_IS_OK(status)) {
753 return status;
754 }
755 }
756
757 if (access_mask & FILE_WRITE_DATA) {
758 off = access_to_netatalk_brl(fork_type, FILE_WRITE_DATA);
759 req_guid.time_hi_and_version = __LINE__;
760 status = do_lock(
761 fsp,
762 talloc_tos(),
763 &req_guid,
764 fsp->op->global->open_persistent_id,
765 1,
766 off,
767 READ_LOCK,
768 POSIX_LOCK,
769 NULL,
770 NULL);
771
772 if (!NT_STATUS_IS_OK(status)) {
773 return status;
774 }
775 }
776
777 if (!share_for_write) {
778 off = denymode_to_netatalk_brl(fork_type, DENY_WRITE);
779 req_guid.time_hi_and_version = __LINE__;
780 status = do_lock(
781 fsp,
782 talloc_tos(),
783 &req_guid,
784 fsp->op->global->open_persistent_id,
785 1,
786 off,
787 READ_LOCK,
788 POSIX_LOCK,
789 NULL,
790 NULL);
791
792 if (!NT_STATUS_IS_OK(status)) {
793 return status;
794 }
795 }
796
797 return NT_STATUS_OK;
798 }
799
800 static NTSTATUS check_aapl(vfs_handle_struct *handle,
801 struct smb_request *req,
802 const struct smb2_create_blobs *in_context_blobs,
803 struct smb2_create_blobs *out_context_blobs)
804 {
805 struct fruit_config_data *config;
806 NTSTATUS status;
807 struct smb2_create_blob *aapl = NULL;
808 uint32_t cmd;
809 bool ok;
810 uint8_t p[16];
811 DATA_BLOB blob = data_blob_talloc(req, NULL, 0);
812 uint64_t req_bitmap, client_caps;
813 uint64_t server_caps = SMB2_CRTCTX_AAPL_UNIX_BASED;
814 smb_ucs2_t *model;
815 size_t modellen;
816
817 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
818 return NT_STATUS_UNSUCCESSFUL);
819
820 if (!config->use_aapl
821 || in_context_blobs == NULL
822 || out_context_blobs == NULL) {
823 return NT_STATUS_OK;
824 }
825
826 aapl = smb2_create_blob_find(in_context_blobs,
827 SMB2_CREATE_TAG_AAPL);
828 if (aapl == NULL) {
829 return NT_STATUS_OK;
830 }
831
832 if (aapl->data.length != 24) {
833 DEBUG(1, ("unexpected AAPL ctxt length: %ju\n",
834 (uintmax_t)aapl->data.length));
835 return NT_STATUS_INVALID_PARAMETER;
836 }
837
838 cmd = IVAL(aapl->data.data, 0);
839 if (cmd != SMB2_CRTCTX_AAPL_SERVER_QUERY) {
840 DEBUG(1, ("unsupported AAPL cmd: %d\n", cmd));
841 return NT_STATUS_INVALID_PARAMETER;
842 }
843
844 req_bitmap = BVAL(aapl->data.data, 8);
845 client_caps = BVAL(aapl->data.data, 16);
846
847 SIVAL(p, 0, SMB2_CRTCTX_AAPL_SERVER_QUERY);
848 SIVAL(p, 4, 0);
849 SBVAL(p, 8, req_bitmap);
850 ok = data_blob_append(req, &blob, p, 16);
851 if (!ok) {
852 return NT_STATUS_UNSUCCESSFUL;
853 }
854
855 if (req_bitmap & SMB2_CRTCTX_AAPL_SERVER_CAPS) {
856 if ((client_caps & SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR) &&
857 (handle->conn->fs_capabilities & FILE_NAMED_STREAMS)) {
858 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR;
859 config->readdir_attr_enabled = true;
860 }
861
862 if (config->use_copyfile) {
863 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_OSX_COPYFILE;
864 config->copyfile_enabled = true;
865 }
866
867 /*
868 * The client doesn't set the flag, so we can't check
869 * for it and just set it unconditionally
870 */
871 if (config->unix_info_enabled) {
872 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_NFS_ACE;
873 }
874
875 SBVAL(p, 0, server_caps);
876 ok = data_blob_append(req, &blob, p, 8);
877 if (!ok) {
878 return NT_STATUS_UNSUCCESSFUL;
879 }
880 }
881
882 if (req_bitmap & SMB2_CRTCTX_AAPL_VOLUME_CAPS) {
883 int val = lp_case_sensitive(SNUM(handle->conn));
884 uint64_t caps = 0;
885
886 switch (val) {
887 case Auto:
888 break;
889
890 case True:
891 caps |= SMB2_CRTCTX_AAPL_CASE_SENSITIVE;
892 break;
893
894 default:
895 break;
896 }
897
898 if (config->time_machine) {
899 caps |= SMB2_CRTCTX_AAPL_FULL_SYNC;
900 }
901
902 SBVAL(p, 0, caps);
903
904 ok = data_blob_append(req, &blob, p, 8);
905 if (!ok) {
906 return NT_STATUS_UNSUCCESSFUL;
907 }
908 }
909
910 if (req_bitmap & SMB2_CRTCTX_AAPL_MODEL_INFO) {
911 ok = convert_string_talloc(req,
912 CH_UNIX, CH_UTF16LE,
913 config->model, strlen(config->model),
914 &model, &modellen);
915 if (!ok) {
916 return NT_STATUS_UNSUCCESSFUL;
917 }
918
919 SIVAL(p, 0, 0);
920 SIVAL(p + 4, 0, modellen);
921 ok = data_blob_append(req, &blob, p, 8);
922 if (!ok) {
923 talloc_free(model);
924 return NT_STATUS_UNSUCCESSFUL;
925 }
926
927 ok = data_blob_append(req, &blob, model, modellen);
928 talloc_free(model);
929 if (!ok) {
930 return NT_STATUS_UNSUCCESSFUL;
931 }
932 }
933
934 status = smb2_create_blob_add(out_context_blobs,
935 out_context_blobs,
936 SMB2_CREATE_TAG_AAPL,
937 blob);
938 if (NT_STATUS_IS_OK(status)) {
939 global_fruit_config.nego_aapl = true;
940 }
941
942 return status;
943 }
944
945 static bool readdir_attr_meta_finderi_stream(
946 struct vfs_handle_struct *handle,
947 const struct smb_filename *smb_fname,
948 AfpInfo *ai)
949 {
950 struct smb_filename *stream_name = NULL;
951 files_struct *fsp = NULL;
952 ssize_t nread;
953 NTSTATUS status;
954 bool ok;
955 uint8_t buf[AFP_INFO_SIZE];
956
957 status = synthetic_pathref(talloc_tos(),
958 handle->conn->cwd_fsp,
959 smb_fname->base_name,
960 AFPINFO_STREAM_NAME,
961 NULL,
962 smb_fname->twrp,
963 smb_fname->flags,
964 &stream_name);
965 if (!NT_STATUS_IS_OK(status)) {
966 return false;
967 }
968
969 status = SMB_VFS_CREATE_FILE(
970 handle->conn, /* conn */
971 NULL, /* req */
972 NULL, /* dirfsp */
973 stream_name, /* fname */
974 FILE_READ_DATA, /* access_mask */
975 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
976 FILE_SHARE_DELETE),
977 FILE_OPEN, /* create_disposition*/
978 0, /* create_options */
979 0, /* file_attributes */
980 INTERNAL_OPEN_ONLY, /* oplock_request */
981 NULL, /* lease */
982 0, /* allocation_size */
983 0, /* private_flags */
984 NULL, /* sd */
985 NULL, /* ea_list */
986 &fsp, /* result */
987 NULL, /* pinfo */
988 NULL, NULL); /* create context */
989
990 TALLOC_FREE(stream_name);
991
992 if (!NT_STATUS_IS_OK(status)) {
993 return false;
994 }
995
996 nread = SMB_VFS_PREAD(fsp, &buf[0], AFP_INFO_SIZE, 0);
997 if (nread != AFP_INFO_SIZE) {
998 DBG_ERR("short read [%s] [%zd/%d]\n",
999 smb_fname_str_dbg(stream_name), nread, AFP_INFO_SIZE);
1000 ok = false;
1001 goto fail;
1002 }
1003
1004 memcpy(&ai->afpi_FinderInfo[0], &buf[AFP_OFF_FinderInfo],
1005 AFP_FinderSize);
1006
1007 ok = true;
1008
1009 fail:
1010 if (fsp != NULL) {
1011 close_file_free(NULL, &fsp, NORMAL_CLOSE);
1012 }
1013
1014 return ok;
1015 }
1016
1017 static bool readdir_attr_meta_finderi_netatalk(
1018 struct vfs_handle_struct *handle,
1019 const struct smb_filename *smb_fname,
1020 AfpInfo *ai)
1021 {
1022 struct adouble *ad = NULL;
1023 char *p = NULL;
1024
1025 ad = ad_get_meta_fsp(talloc_tos(), handle, smb_fname);
1026 if (ad == NULL) {
1027 return false;
1028 }
1029
1030 p = ad_get_entry(ad, ADEID_FINDERI);
1031 if (p == NULL) {
1032 DBG_ERR("No ADEID_FINDERI for [%s]\n", smb_fname->base_name);
1033 TALLOC_FREE(ad);
1034 return false;
1035 }
1036
1037 memcpy(&ai->afpi_FinderInfo[0], p, AFP_FinderSize);
1038 TALLOC_FREE(ad);
1039 return true;
1040 }
1041
1042 static bool readdir_attr_meta_finderi(struct vfs_handle_struct *handle,
1043 const struct smb_filename *smb_fname,
1044 struct readdir_attr_data *attr_data)
1045 {
1046 struct fruit_config_data *config = NULL;
1047 uint32_t date_added;
1048 AfpInfo ai = {0};
1049 bool ok;
1050
1051 SMB_VFS_HANDLE_GET_DATA(handle, config,
1052 struct fruit_config_data,
1053 return false);
1054
1055 switch (config->meta) {
1056 case FRUIT_META_NETATALK:
1057 ok = readdir_attr_meta_finderi_netatalk(
1058 handle, smb_fname, &ai);
1059 break;
1060
1061 case FRUIT_META_STREAM:
1062 ok = readdir_attr_meta_finderi_stream(
1063 handle, smb_fname, &ai);
1064 break;
1065
1066 default:
1067 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
1068 return false;
1069 }
1070
1071 if (!ok) {
1072 /* Don't bother with errors, it's likely ENOENT */
1073 return true;
1074 }
1075
1076 if (S_ISREG(smb_fname->st.st_ex_mode)) {
1077 /* finder_type */
1078 memcpy(&attr_data->attr_data.aapl.finder_info[0],
1079 &ai.afpi_FinderInfo[0], 4);
1080
1081 /* finder_creator */
1082 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 4,
1083 &ai.afpi_FinderInfo[4], 4);
1084 }
1085
1086 /* finder_flags */
1087 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 8,
1088 &ai.afpi_FinderInfo[8], 2);
1089
1090 /* finder_ext_flags */
1091 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 10,
1092 &ai.afpi_FinderInfo[24], 2);
1093
1094 /* creation date */
1095 date_added = convert_time_t_to_uint32_t(
1096 smb_fname->st.st_ex_btime.tv_sec - AD_DATE_DELTA);
1097
1098 RSIVAL(&attr_data->attr_data.aapl.finder_info[0], 12, date_added);
1099
1100 return true;
1101 }
1102
1103 static uint64_t readdir_attr_rfork_size_adouble(
1104 struct vfs_handle_struct *handle,
1105 const struct smb_filename *smb_fname)
1106 {
1107 struct adouble *ad = NULL;
1108 uint64_t rfork_size;
1109
1110 ad = ad_get(talloc_tos(), handle, smb_fname,
1111 ADOUBLE_RSRC);
1112 if (ad == NULL) {
1113 return 0;
1114 }
1115
1116 rfork_size = ad_getentrylen(ad, ADEID_RFORK);
1117 TALLOC_FREE(ad);
1118
1119 return rfork_size;
1120 }
1121
1122 static uint64_t readdir_attr_rfork_size_stream(
1123 struct vfs_handle_struct *handle,
1124 const struct smb_filename *smb_fname)
1125 {
1126 struct smb_filename *stream_name = NULL;
1127 int ret;
1128 uint64_t rfork_size;
1129
1130 stream_name = synthetic_smb_fname(talloc_tos(),
1131 smb_fname->base_name,
1132 AFPRESOURCE_STREAM_NAME,
1133 NULL,
1134 smb_fname->twrp,
1135 0);
1136 if (stream_name == NULL) {
1137 return 0;
1138 }
1139
1140 ret = SMB_VFS_STAT(handle->conn, stream_name);
1141 if (ret != 0) {
1142 TALLOC_FREE(stream_name);
1143 return 0;
1144 }
1145
1146 rfork_size = stream_name->st.st_ex_size;
1147 TALLOC_FREE(stream_name);
1148
1149 return rfork_size;
1150 }
1151
1152 static uint64_t readdir_attr_rfork_size(struct vfs_handle_struct *handle,
1153 const struct smb_filename *smb_fname)
1154 {
1155 struct fruit_config_data *config = NULL;
1156 uint64_t rfork_size;
1157
1158 SMB_VFS_HANDLE_GET_DATA(handle, config,
1159 struct fruit_config_data,
1160 return 0);
1161
1162 switch (config->rsrc) {
1163 case FRUIT_RSRC_ADFILE:
1164 rfork_size = readdir_attr_rfork_size_adouble(handle,
1165 smb_fname);
1166 break;
1167
1168 case FRUIT_RSRC_XATTR:
1169 case FRUIT_RSRC_STREAM:
1170 rfork_size = readdir_attr_rfork_size_stream(handle,
1171 smb_fname);
1172 break;
1173
1174 default:
1175 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
1176 rfork_size = 0;
1177 break;
1178 }
1179
1180 return rfork_size;
1181 }
1182
1183 static NTSTATUS readdir_attr_macmeta(struct vfs_handle_struct *handle,
1184 const struct smb_filename *smb_fname,
1185 struct readdir_attr_data *attr_data)
1186 {
1187 NTSTATUS status = NT_STATUS_OK;
1188 struct fruit_config_data *config = NULL;
1189 bool ok;
1190
1191 SMB_VFS_HANDLE_GET_DATA(handle, config,
1192 struct fruit_config_data,
1193 return NT_STATUS_UNSUCCESSFUL);
1194
1195
1196 /* Ensure we return a default value in the creation_date field */
1197 RSIVAL(&attr_data->attr_data.aapl.finder_info, 12, AD_DATE_START);
1198
1199 /*
1200 * Resource fork length
1201 */
1202
1203 if (config->readdir_attr_rsize) {
1204 uint64_t rfork_size;
1205
1206 rfork_size = readdir_attr_rfork_size(handle, smb_fname);
1207 attr_data->attr_data.aapl.rfork_size = rfork_size;
1208 }
1209
1210 /*
1211 * FinderInfo
1212 */
1213
1214 if (config->readdir_attr_finder_info) {
1215 ok = readdir_attr_meta_finderi(handle, smb_fname, attr_data);
1216 if (!ok) {
1217 status = NT_STATUS_INTERNAL_ERROR;
1218 }
1219 }
1220
1221 return status;
1222 }
1223
1224 static NTSTATUS remove_virtual_nfs_aces(struct security_descriptor *psd)
1225 {
1226 NTSTATUS status;
1227 uint32_t i;
1228
1229 if (psd->dacl == NULL) {
1230 return NT_STATUS_OK;
1231 }
1232
1233 for (i = 0; i < psd->dacl->num_aces; i++) {
1234 /* MS NFS style mode/uid/gid */
1235 int cmp = dom_sid_compare_domain(
1236 &global_sid_Unix_NFS,
1237 &psd->dacl->aces[i].trustee);
1238 if (cmp != 0) {
1239 /* Normal ACE entry. */
1240 continue;
1241 }
1242
1243 /*
1244 * security_descriptor_dacl_del()
1245 * *must* return NT_STATUS_OK as we know
1246 * we have something to remove.
1247 */
1248
1249 status = security_descriptor_dacl_del(psd,
1250 &psd->dacl->aces[i].trustee);
1251 if (!NT_STATUS_IS_OK(status)) {
1252 DBG_WARNING("failed to remove MS NFS style ACE: %s\n",
1253 nt_errstr(status));
1254 return status;
1255 }
1256
1257 /*
1258 * security_descriptor_dacl_del() may delete more
1259 * then one entry subsequent to this one if the
1260 * SID matches, but we only need to ensure that
1261 * we stay looking at the same element in the array.
1262 */
1263 i--;
1264 }
1265 return NT_STATUS_OK;
1266 }
1267
1268 /* Search MS NFS style ACE with UNIX mode */
1269 static NTSTATUS check_ms_nfs(vfs_handle_struct *handle,
1270 files_struct *fsp,
1271 struct security_descriptor *psd,
1272 mode_t *pmode,
1273 bool *pdo_chmod)
1274 {
1275 uint32_t i;
1276 struct fruit_config_data *config = NULL;
1277
1278 *pdo_chmod = false;
1279
1280 SMB_VFS_HANDLE_GET_DATA(handle, config,
1281 struct fruit_config_data,
1282 return NT_STATUS_UNSUCCESSFUL);
1283
1284 if (!global_fruit_config.nego_aapl) {
1285 return NT_STATUS_OK;
1286 }
1287 if (psd->dacl == NULL || !config->unix_info_enabled) {
1288 return NT_STATUS_OK;
1289 }
1290
1291 for (i = 0; i < psd->dacl->num_aces; i++) {
1292 if (dom_sid_compare_domain(
1293 &global_sid_Unix_NFS_Mode,
1294 &psd->dacl->aces[i].trustee) == 0) {
1295 *pmode = (mode_t)psd->dacl->aces[i].trustee.sub_auths[2];
1296 *pmode &= (S_IRWXU | S_IRWXG | S_IRWXO);
1297 *pdo_chmod = true;
1298
1299 DEBUG(10, ("MS NFS chmod request %s, %04o\n",
1300 fsp_str_dbg(fsp), (unsigned)(*pmode)));
1301 break;
1302 }
1303 }
1304
1305 /*
1306 * Remove any incoming virtual ACE entries generated by
1307 * fruit_fget_nt_acl().
1308 */
1309
1310 return remove_virtual_nfs_aces(psd);
1311 }
1312
1313 /****************************************************************************
1314 * VFS ops
1315 ****************************************************************************/
1316
1317 static int fruit_connect(vfs_handle_struct *handle,
1318 const char *service,
1319 const char *user)
1320 {
1321 int rc;
1322 char *list = NULL, *newlist = NULL;
1323 struct fruit_config_data *config;
1324 const struct loadparm_substitution *lp_sub =
1325 loadparm_s3_global_substitution();
1326
1327 DEBUG(10, ("fruit_connect\n"));
1328
1329 rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
1330 if (rc < 0) {
1331 return rc;
1332 }
1333
1334 rc = init_fruit_config(handle);
1335 if (rc != 0) {
1336 return rc;
1337 }
1338
1339 SMB_VFS_HANDLE_GET_DATA(handle, config,
1340 struct fruit_config_data, return -1);
1341
1342 if (config->veto_appledouble) {
1343 list = lp_veto_files(talloc_tos(), lp_sub, SNUM(handle->conn));
1344
1345 if (list) {
1346 if (strstr(list, "/" ADOUBLE_NAME_PREFIX "*/") == NULL) {
1347 newlist = talloc_asprintf(
1348 list,
1349 "%s/" ADOUBLE_NAME_PREFIX "*/",
1350 list);
1351 lp_do_parameter(SNUM(handle->conn),
1352 "veto files",
1353 newlist);
1354 }
1355 } else {
1356 lp_do_parameter(SNUM(handle->conn),
1357 "veto files",
1358 "/" ADOUBLE_NAME_PREFIX "*/");
1359 }
1360
1361 TALLOC_FREE(list);
1362 }
1363
1364 if (config->encoding == FRUIT_ENC_NATIVE) {
1365 lp_do_parameter(SNUM(handle->conn),
1366 "catia:mappings",
1367 macos_string_replace_map);
1368 }
1369
1370 if (config->time_machine) {
1371 DBG_NOTICE("Enabling durable handles for Time Machine "
1372 "support on [%s]\n", service);
1373 lp_do_parameter(SNUM(handle->conn), "durable handles", "yes");
1374 lp_do_parameter(SNUM(handle->conn), "kernel oplocks", "no");
1375 lp_do_parameter(SNUM(handle->conn), "kernel share modes", "no");
1376 if (!lp_strict_sync(SNUM(handle->conn))) {
1377 DBG_WARNING("Time Machine without strict sync is not "
1378 "recommended!\n");
1379 }
1380 lp_do_parameter(SNUM(handle->conn), "posix locking", "no");
1381 }
1382
1383 return rc;
1384 }
1385
1386 static void fio_ref_destroy_fn(void *p_data)
1387 {
1388 struct fio *ref_fio = (struct fio *)p_data;
1389 if (ref_fio->real_fio != NULL) {
1390 SMB_ASSERT(ref_fio->real_fio->ad_fsp == ref_fio->fsp);
1391 ref_fio->real_fio->ad_fsp = NULL;
1392 ref_fio->real_fio = NULL;
1393 }
1394 }
1395
1396 static void fio_close_ad_fsp(struct fio *fio)
1397 {
1398 if (fio->ad_fsp != NULL) {
1399 fd_close(fio->ad_fsp);
1400 file_free(NULL, fio->ad_fsp);
1401 /* fio_ref_destroy_fn() should have cleared this */
1402 SMB_ASSERT(fio->ad_fsp == NULL);
1403 }
1404 }
1405
1406 static void fio_destroy_fn(void *p_data)
1407 {
1408 struct fio *fio = (struct fio *)p_data;
1409 fio_close_ad_fsp(fio);
1410 }
1411
1412 static int fruit_open_meta_stream(vfs_handle_struct *handle,
1413 const struct files_struct *dirfsp,
1414 const struct smb_filename *smb_fname,
1415 files_struct *fsp,
1416 int flags,
1417 mode_t mode)
1418 {
1419 struct fruit_config_data *config = NULL;
1420 struct fio *fio = NULL;
1421 struct vfs_open_how how = {
1422 .flags = flags & ~O_CREAT,
1423 .mode = mode,
1424 };
1425 int fd;
1426
1427 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
1428
1429 SMB_VFS_HANDLE_GET_DATA(handle, config,
1430 struct fruit_config_data, return -1);
1431
1432 fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, fio_destroy_fn);
1433 fio->handle = handle;
1434 fio->fsp = fsp;
1435 fio->type = ADOUBLE_META;
1436 fio->config = config;
1437
1438 fd = SMB_VFS_NEXT_OPENAT(handle,
1439 dirfsp,
1440 smb_fname,
1441 fsp,
1442 &how);
1443 if (fd != -1) {
1444 return fd;
1445 }
1446
1447 if (!(flags & O_CREAT)) {
1448 VFS_REMOVE_FSP_EXTENSION(handle, fsp);
1449 return -1;
1450 }
1451
1452 fd = vfs_fake_fd();
1453 if (fd == -1) {
1454 VFS_REMOVE_FSP_EXTENSION(handle, fsp);
1455 return -1;
1456 }
1457
1458 fio->fake_fd = true;
1459 fio->flags = flags;
1460 fio->mode = mode;
1461
1462 return fd;
1463 }
1464
1465 static int fruit_open_meta_netatalk(vfs_handle_struct *handle,
1466 const struct files_struct *dirfsp,
1467 const struct smb_filename *smb_fname,
1468 files_struct *fsp,
1469 int flags,
1470 mode_t mode)
1471 {
1472 struct fruit_config_data *config = NULL;
1473 struct fio *fio = NULL;
1474 struct adouble *ad = NULL;
1475 bool meta_exists = false;
1476 int fd;
1477
1478 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
1479
1480 /*
1481 * We know this is a stream open, so fsp->base_fsp must
1482 * already be open.
1483 */
1484 SMB_ASSERT(fsp_is_alternate_stream(fsp));
1485 SMB_ASSERT(fsp->base_fsp->fsp_name->fsp == fsp->base_fsp);
1486
1487 ad = ad_get(talloc_tos(), handle, fsp->base_fsp->fsp_name, ADOUBLE_META);
1488 if (ad != NULL) {
1489 meta_exists = true;
1490 }
1491
1492 TALLOC_FREE(ad);
1493
1494 if (!meta_exists && !(flags & O_CREAT)) {
1495 errno = ENOENT;
1496 return -1;
1497 }
1498
1499 fd = vfs_fake_fd();
1500 if (fd == -1) {
1501 return -1;
1502 }
1503
1504 SMB_VFS_HANDLE_GET_DATA(handle, config,
1505 struct fruit_config_data, return -1);
1506
1507 fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, fio_destroy_fn);
1508 fio->handle = handle;
1509 fio->fsp = fsp;
1510 fio->type = ADOUBLE_META;
1511 fio->config = config;
1512 fio->fake_fd = true;
1513 fio->flags = flags;
1514 fio->mode = mode;
1515
1516 return fd;
1517 }
1518
1519 static int fruit_open_meta(vfs_handle_struct *handle,
1520 const struct files_struct *dirfsp,
1521 const struct smb_filename *smb_fname,
1522 files_struct *fsp, int flags, mode_t mode)
1523 {
1524 int fd;
1525 struct fruit_config_data *config = NULL;
1526
1527 DBG_DEBUG("path [%s]\n", smb_fname_str_dbg(smb_fname));
1528
1529 SMB_VFS_HANDLE_GET_DATA(handle, config,
1530 struct fruit_config_data, return -1);
1531
1532 switch (config->meta) {
1533 case FRUIT_META_STREAM:
1534 fd = fruit_open_meta_stream(handle, dirfsp, smb_fname,
1535 fsp, flags, mode);
1536 break;
1537
1538 case FRUIT_META_NETATALK:
1539 fd = fruit_open_meta_netatalk(handle, dirfsp, smb_fname,
1540 fsp, flags, mode);
1541 break;
1542
1543 default:
1544 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
1545 return -1;
1546 }
1547
1548 DBG_DEBUG("path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
1549
1550 return fd;
1551 }
1552
1553 static int fruit_open_rsrc_adouble(vfs_handle_struct *handle,
1554 const struct files_struct *dirfsp,
1555 const struct smb_filename *smb_fname,
1556 files_struct *fsp,
1557 int flags,
1558 mode_t mode)
1559 {
1560 int rc = 0;
1561 struct fruit_config_data *config = NULL;
1562 struct files_struct *ad_fsp = NULL;
1563 struct fio *fio = NULL;
1564 struct fio *ref_fio = NULL;
1565 NTSTATUS status;
1566 int fd = -1;
1567
1568 SMB_VFS_HANDLE_GET_DATA(handle, config,
1569 struct fruit_config_data, return -1);
1570
1571 if ((!(flags & O_CREAT)) &&
1572 S_ISDIR(fsp->base_fsp->fsp_name->st.st_ex_mode))
1573 {
1574 /* sorry, but directories don't have a resource fork */
1575 errno = ENOENT;
1576 rc = -1;
1577 goto exit;
1578 }
1579
1580 /*
1581 * We return a fake_fd to the vfs modules above,
1582 * while we open an internal backend fsp for the
1583 * '._' file for the next vfs modules.
1584 *
1585 * Note that adouble_open_from_base_fsp() recurses
1586 * into fruit_openat(), but it'll just pass to
1587 * the next module as just opens a flat file on
1588 * disk.
1589 */
1590
1591 fd = vfs_fake_fd();
1592 if (fd == -1) {
1593 rc = fd;
1594 goto exit;
1595 }
1596
1597 status = adouble_open_from_base_fsp(fsp->conn->cwd_fsp,
1598 fsp->base_fsp,
1599 ADOUBLE_RSRC,
1600 flags,
1601 mode,
1602 &ad_fsp);
1603 if (!NT_STATUS_IS_OK(status)) {
1604 errno = map_errno_from_nt_status(status);
1605 rc = -1;
1606 goto exit;
1607 }
1608
1609 /*
1610 * Now we need to glue both handles together,
1611 * so that they automatically detach each other
1612 * on close.
1613 */
1614 fio = fruit_get_complete_fio(handle, fsp);
1615 if (fio == NULL) {
1616 DBG_ERR("fio=NULL for [%s]\n", fsp_str_dbg(fsp));
1617 errno = EBADF;
1618 rc = -1;
1619 goto exit;
1620 }
1621
1622 ref_fio = VFS_ADD_FSP_EXTENSION(handle, ad_fsp,
1623 struct fio,
1624 fio_ref_destroy_fn);
1625 if (ref_fio == NULL) {
1626 int saved_errno = errno;
1627 fd_close(ad_fsp);
1628 file_free(NULL, ad_fsp);
1629 ad_fsp = NULL;
1630 errno = saved_errno;
1631 rc = -1;
1632 goto exit;
1633 }
1634
1635 SMB_ASSERT(ref_fio->fsp == NULL);
1636 ref_fio->handle = handle;
1637 ref_fio->fsp = ad_fsp;
1638 ref_fio->type = ADOUBLE_RSRC;
1639 ref_fio->config = config;
1640 ref_fio->real_fio = fio;
1641 SMB_ASSERT(fio->ad_fsp == NULL);
1642 fio->ad_fsp = ad_fsp;
1643 fio->fake_fd = true;
1644
1645 exit:
1646
1647 DEBUG(10, ("fruit_open resource fork: rc=%d\n", rc));
1648 if (rc != 0) {
1649 int saved_errno = errno;
1650 if (fd != -1) {
1651 vfs_fake_fd_close(fd);
1652 }
1653 errno = saved_errno;
1654 return rc;
1655 }
1656 return fd;
1657 }
1658
1659 static int fruit_open_rsrc_xattr(vfs_handle_struct *handle,
1660 const struct files_struct *dirfsp,
1661 const struct smb_filename *smb_fname,
1662 files_struct *fsp,
1663 int flags,
1664 mode_t mode)
1665 {
1666 #ifdef HAVE_ATTROPEN
1667 int fd = -1;
1668
1669 /*
1670 * As there's no attropenat() this is only going to work with AT_FDCWD.
1671 */
1672 SMB_ASSERT(fsp_get_pathref_fd(dirfsp) == AT_FDCWD);
1673
1674 fd = attropen(smb_fname->base_name,
1675 AFPRESOURCE_EA_NETATALK,
1676 flags,
1677 mode);
1678 if (fd == -1) {
1679 return -1;
1680 }
1681
1682 return fd;
1683
1684 #else
1685 errno = ENOSYS;
1686 return -1;
1687 #endif
1688 }
1689
1690 static int fruit_open_rsrc(vfs_handle_struct *handle,
1691 const struct files_struct *dirfsp,
1692 const struct smb_filename *smb_fname,
1693 files_struct *fsp, int flags, mode_t mode)
1694 {
1695 int fd;
1696 struct fruit_config_data *config = NULL;
1697 struct fio *fio = NULL;
1698
1699 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
1700
1701 SMB_VFS_HANDLE_GET_DATA(handle, config,
1702 struct fruit_config_data, return -1);
1703
1704 fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, fio_destroy_fn);
1705 fio->handle = handle;
1706 fio->fsp = fsp;
1707 fio->type = ADOUBLE_RSRC;
1708 fio->config = config;
1709
1710 switch (config->rsrc) {
1711 case FRUIT_RSRC_STREAM: {
1712 struct vfs_open_how how = {
1713 .flags = flags, .mode = mode,
1714 };
1715 fd = SMB_VFS_NEXT_OPENAT(handle,
1716 dirfsp,
1717 smb_fname,
1718 fsp,
1719 &how);
1720 break;
1721 }
1722
1723 case FRUIT_RSRC_ADFILE:
1724 fd = fruit_open_rsrc_adouble(handle, dirfsp, smb_fname,
1725 fsp, flags, mode);
1726 break;
1727
1728 case FRUIT_RSRC_XATTR:
1729 fd = fruit_open_rsrc_xattr(handle, dirfsp, smb_fname,
1730 fsp, flags, mode);
1731 break;
1732
1733 default:
1734 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
1735 errno = EINVAL;
1736 return -1;
1737 }
1738
1739 DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
1740
1741 if (fd == -1) {
1742 return -1;
1743 }
1744
1745 return fd;
1746 }
1747
1748 static int fruit_openat(vfs_handle_struct *handle,
1749 const struct files_struct *dirfsp,
1750 const struct smb_filename *smb_fname,
1751 files_struct *fsp,
1752 const struct vfs_open_how *how)
1753 {
1754 int fd;
1755
1756 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
1757
1758 if (!is_named_stream(smb_fname)) {
1759 return SMB_VFS_NEXT_OPENAT(handle,
1760 dirfsp,
1761 smb_fname,
1762 fsp,
1763 how);
1764 }
1765
1766 if (how->resolve != 0) {
1767 errno = ENOSYS;
1768 return -1;
1769 }
1770
1771 SMB_ASSERT(fsp_is_alternate_stream(fsp));
1772
1773 if (is_afpinfo_stream(smb_fname->stream_name)) {
1774 fd = fruit_open_meta(handle,
1775 dirfsp,
1776 smb_fname,
1777 fsp,
1778 how->flags,
1779 how->mode);
1780 } else if (is_afpresource_stream(smb_fname->stream_name)) {
1781 fd = fruit_open_rsrc(handle,
1782 dirfsp,
1783 smb_fname,
1784 fsp,
1785 how->flags,
1786 how->mode);
1787 } else {
1788 fd = SMB_VFS_NEXT_OPENAT(handle,
1789 dirfsp,
1790 smb_fname,
1791 fsp,
1792 how);
1793 }
1794
1795 DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
1796
1797 /* Prevent reopen optimisation */
1798 fsp->fsp_flags.have_proc_fds = false;
1799 return fd;
1800 }
1801
1802 static int fruit_close_meta(vfs_handle_struct *handle,
1803 files_struct *fsp)
1804 {
1805 int ret;
1806 struct fruit_config_data *config = NULL;
1807
1808 SMB_VFS_HANDLE_GET_DATA(handle, config,
1809 struct fruit_config_data, return -1);
1810
1811 switch (config->meta) {
1812 case FRUIT_META_STREAM:
1813 {
1814 struct fio *fio = fruit_get_complete_fio(handle, fsp);
1815 if (fio == NULL) {
1816 return -1;
1817 }
1818 if (fio->fake_fd) {
1819 ret = vfs_fake_fd_close(fsp_get_pathref_fd(fsp));
1820 fsp_set_fd(fsp, -1);
1821 } else {
1822 ret = SMB_VFS_NEXT_CLOSE(handle, fsp);
1823 }
1824 break;
1825 }
1826 case FRUIT_META_NETATALK:
1827 ret = vfs_fake_fd_close(fsp_get_pathref_fd(fsp));
1828 fsp_set_fd(fsp, -1);
1829 break;
1830
1831 default:
1832 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
1833 return -1;
1834 }
1835
1836 return ret;
1837 }
1838
1839
1840 static int fruit_close_rsrc(vfs_handle_struct *handle,
1841 files_struct *fsp)
1842 {
1843 int ret;
1844 struct fruit_config_data *config = NULL;
1845
1846 SMB_VFS_HANDLE_GET_DATA(handle, config,
1847 struct fruit_config_data, return -1);
1848
1849 switch (config->rsrc) {
1850 case FRUIT_RSRC_STREAM:
1851 ret = SMB_VFS_NEXT_CLOSE(handle, fsp);
1852 break;
1853
1854 case FRUIT_RSRC_ADFILE:
1855 {
1856 struct fio *fio = fruit_get_complete_fio(handle, fsp);
1857 if (fio == NULL) {
1858 return -1;
1859 }
1860 fio_close_ad_fsp(fio);
1861 ret = vfs_fake_fd_close(fsp_get_pathref_fd(fsp));
1862 fsp_set_fd(fsp, -1);
1863 break;
1864 }
1865
1866 case FRUIT_RSRC_XATTR:
1867 ret = vfs_fake_fd_close(fsp_get_pathref_fd(fsp));
1868 fsp_set_fd(fsp, -1);
1869 break;
1870
1871 default:
1872 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
1873 return -1;
1874 }
1875
1876 return ret;
1877 }
1878
1879 static int fruit_close(vfs_handle_struct *handle,
1880 files_struct *fsp)
1881 {
1882 int ret;
1883 int fd;
1884
1885 fd = fsp_get_pathref_fd(fsp);
1886
1887 DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(fsp->fsp_name), fd);
1888
1889 if (!fsp_is_alternate_stream(fsp)) {
1890 return SMB_VFS_NEXT_CLOSE(handle, fsp);
1891 }
1892
1893 if (is_afpinfo_stream(fsp->fsp_name->stream_name)) {
1894 ret = fruit_close_meta(handle, fsp);
1895 } else if (is_afpresource_stream(fsp->fsp_name->stream_name)) {
1896 ret = fruit_close_rsrc(handle, fsp);
1897 } else {
1898 ret = SMB_VFS_NEXT_CLOSE(handle, fsp);
1899 }
1900
1901 return ret;
1902 }
1903
1904 static int fruit_renameat(struct vfs_handle_struct *handle,
1905 files_struct *srcfsp,
1906 const struct smb_filename *smb_fname_src,
1907 files_struct *dstfsp,
1908 const struct smb_filename *smb_fname_dst)
1909 {
1910 int rc = -1;
1911 struct fruit_config_data *config = NULL;
1912 struct smb_filename *src_adp_smb_fname = NULL;
1913 struct smb_filename *dst_adp_smb_fname = NULL;
1914
1915 SMB_VFS_HANDLE_GET_DATA(handle, config,
1916 struct fruit_config_data, return -1);
1917
1918 if (!VALID_STAT(smb_fname_src->st)) {
1919 DBG_ERR("Need valid stat for [%s]\n",
1920 smb_fname_str_dbg(smb_fname_src));
1921 return -1;
1922 }
1923
1924 rc = SMB_VFS_NEXT_RENAMEAT(handle,
1925 srcfsp,
1926 smb_fname_src,
1927 dstfsp,
1928 smb_fname_dst);
1929 if (rc != 0) {
1930 return -1;
1931 }
1932
1933 if ((config->rsrc != FRUIT_RSRC_ADFILE) ||
1934 (!S_ISREG(smb_fname_src->st.st_ex_mode)))
1935 {
1936 return 0;
1937 }
1938
1939 rc = adouble_path(talloc_tos(), smb_fname_src, &src_adp_smb_fname);
1940 if (rc != 0) {
1941 goto done;
1942 }
1943
1944 rc = adouble_path(talloc_tos(), smb_fname_dst, &dst_adp_smb_fname);
1945 if (rc != 0) {
1946 goto done;
1947 }
1948
1949 DBG_DEBUG("%s -> %s\n",
1950 smb_fname_str_dbg(src_adp_smb_fname),
1951 smb_fname_str_dbg(dst_adp_smb_fname));
1952
1953 rc = SMB_VFS_NEXT_RENAMEAT(handle,
1954 srcfsp,
1955 src_adp_smb_fname,
1956 dstfsp,
1957 dst_adp_smb_fname);
1958 if (errno == ENOENT) {
1959 rc = 0;
1960 }
1961
1962 done:
1963 TALLOC_FREE(src_adp_smb_fname);
1964 TALLOC_FREE(dst_adp_smb_fname);
1965 return rc;
1966 }
1967
1968 static int fruit_unlink_meta_stream(vfs_handle_struct *handle,
1969 struct files_struct *dirfsp,
1970 const struct smb_filename *smb_fname)
1971 {
1972 return SMB_VFS_NEXT_UNLINKAT(handle,
1973 dirfsp,
1974 smb_fname,
1975 0);
1976 }
1977
1978 static int fruit_unlink_meta_netatalk(vfs_handle_struct *handle,
1979 const struct smb_filename *smb_fname)
1980 {
1981 SMB_ASSERT(smb_fname->fsp != NULL);
1982 SMB_ASSERT(fsp_is_alternate_stream(smb_fname->fsp));
1983 return SMB_VFS_FREMOVEXATTR(smb_fname->fsp->base_fsp,
1984 AFPINFO_EA_NETATALK);
1985 }
1986
1987 static int fruit_unlink_meta(vfs_handle_struct *handle,
1988 struct files_struct *dirfsp,
1989 const struct smb_filename *smb_fname)
1990 {
1991 struct fruit_config_data *config = NULL;
1992 int rc;
1993
1994 SMB_VFS_HANDLE_GET_DATA(handle, config,
1995 struct fruit_config_data, return -1);
1996
1997 switch (config->meta) {
1998 case FRUIT_META_STREAM:
1999 rc = fruit_unlink_meta_stream(handle,
2000 dirfsp,
2001 smb_fname);
2002 break;
2003
2004 case FRUIT_META_NETATALK:
2005 rc = fruit_unlink_meta_netatalk(handle, smb_fname);
2006 break;
2007
2008 default:
2009 DBG_ERR("Unsupported meta config [%d]\n", config->meta);
2010 return -1;
2011 }
2012
2013 return rc;
2014 }
2015
2016 static int fruit_unlink_rsrc_stream(vfs_handle_struct *handle,
2017 struct files_struct *dirfsp,
2018 const struct smb_filename *smb_fname,
2019 bool force_unlink)
2020 {
2021 int ret;
2022
2023 if (!force_unlink) {
2024 struct smb_filename *full_fname = NULL;
2025 off_t size;
2026
2027 /*
2028 * TODO: use SMB_VFS_STATX() once we have it.
2029 */
2030
2031 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
2032 dirfsp,
2033 smb_fname);
2034 if (full_fname == NULL) {
2035 return -1;
2036 }
2037
2038 /*
2039 * 0 byte resource fork streams are not listed by
2040 * vfs_streaminfo, as a result stream cleanup/deletion of file
2041 * deletion doesn't remove the resourcefork stream.
2042 */
2043
2044 ret = SMB_VFS_NEXT_STAT(handle, full_fname);
2045 if (ret != 0) {
2046 TALLOC_FREE(full_fname);
2047 DBG_ERR("stat [%s] failed [%s]\n",
2048 smb_fname_str_dbg(full_fname), strerror(errno));
2049 return -1;
2050 }
2051
2052 size = full_fname->st.st_ex_size;
2053 TALLOC_FREE(full_fname);
2054
2055 if (size > 0) {
2056 /* OS X ignores resource fork stream delete requests */
2057 return 0;
2058 }
2059 }
2060
2061 ret = SMB_VFS_NEXT_UNLINKAT(handle,
2062 dirfsp,
2063 smb_fname,
2064 0);
2065 if ((ret != 0) && (errno == ENOENT) && force_unlink) {
2066 ret = 0;
2067 }
2068
2069 return ret;
2070 }
2071
2072 static int fruit_unlink_rsrc_adouble(vfs_handle_struct *handle,
2073 struct files_struct *dirfsp,
2074 const struct smb_filename *smb_fname,
2075 bool force_unlink)
2076 {
2077 int rc;
2078 struct adouble *ad = NULL;
2079 struct smb_filename *adp_smb_fname = NULL;
2080
2081 if (!force_unlink) {
2082 struct smb_filename *full_fname = NULL;
2083
2084 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
2085 dirfsp,
2086 smb_fname);
2087 if (full_fname == NULL) {
2088 return -1;
2089 }
2090
2091 ad = ad_get(talloc_tos(), handle, full_fname,
2092 ADOUBLE_RSRC);
2093 TALLOC_FREE(full_fname);
2094 if (ad == NULL) {
2095 errno = ENOENT;
2096 return -1;
2097 }
2098
2099
2100 /*
2101 * 0 byte resource fork streams are not listed by
2102 * vfs_streaminfo, as a result stream cleanup/deletion of file
2103 * deletion doesn't remove the resourcefork stream.
2104 */
2105
2106 if (ad_getentrylen(ad, ADEID_RFORK) > 0) {
2107 /* OS X ignores resource fork stream delete requests */
2108 TALLOC_FREE(ad);
2109 return 0;
2110 }
2111
2112 TALLOC_FREE(ad);
2113 }
2114
2115 rc = adouble_path(talloc_tos(), smb_fname, &adp_smb_fname);
2116 if (rc != 0) {
2117 return -1;
2118 }
2119
2120 rc = SMB_VFS_NEXT_UNLINKAT(handle,
2121 dirfsp,
2122 adp_smb_fname,
2123 0);
2124 TALLOC_FREE(adp_smb_fname);
2125 if ((rc != 0) && (errno == ENOENT) && force_unlink) {
2126 rc = 0;
2127 }
2128
2129 return rc;
2130 }
2131
2132 static int fruit_unlink_rsrc_xattr(vfs_handle_struct *handle,
2133 const struct smb_filename *smb_fname,
2134 bool force_unlink)
2135 {
2136 /*
2137 * OS X ignores resource fork stream delete requests, so nothing to do
2138 * here. Removing the file will remove the xattr anyway, so we don't
2139 * have to take care of removing 0 byte resource forks that could be
2140 * left behind.
2141 */
2142 return 0;
2143 }
2144
2145 static int fruit_unlink_rsrc(vfs_handle_struct *handle,
2146 struct files_struct *dirfsp,
2147 const struct smb_filename *smb_fname,
2148 bool force_unlink)
2149 {
2150 struct fruit_config_data *config = NULL;
2151 int rc;
2152
2153 SMB_VFS_HANDLE_GET_DATA(handle, config,
2154 struct fruit_config_data, return -1);
2155
2156 switch (config->rsrc) {
2157 case FRUIT_RSRC_STREAM:
2158 rc = fruit_unlink_rsrc_stream(handle,
2159 dirfsp,
2160 smb_fname,
2161 force_unlink);
2162 break;
2163
2164 case FRUIT_RSRC_ADFILE:
2165 rc = fruit_unlink_rsrc_adouble(handle,
2166 dirfsp,
2167 smb_fname,
2168 force_unlink);
2169 break;
2170
2171 case FRUIT_RSRC_XATTR:
2172 rc = fruit_unlink_rsrc_xattr(handle, smb_fname, force_unlink);
2173 break;
2174
2175 default:
2176 DBG_ERR("Unsupported rsrc config [%d]\n", config->rsrc);
2177 return -1;
2178 }
2179
2180 return rc;
2181 }
2182
2183 static int fruit_fchmod(vfs_handle_struct *handle,
2184 struct files_struct *fsp,
2185 mode_t mode)
2186 {
2187 int rc = -1;
2188 struct fruit_config_data *config = NULL;
2189 struct smb_filename *smb_fname_adp = NULL;
2190 const struct smb_filename *smb_fname = NULL;
2191 NTSTATUS status;
2192
2193 rc = SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
2194 if (rc != 0) {
2195 return rc;
2196 }
2197
2198 smb_fname = fsp->fsp_name;
2199 SMB_VFS_HANDLE_GET_DATA(handle, config,
2200 struct fruit_config_data, return -1);
2201
2202 if (config->rsrc != FRUIT_RSRC_ADFILE) {
2203 return 0;
2204 }
2205
2206 if (!VALID_STAT(smb_fname->st)) {
2207 return 0;
2208 }
2209
2210 if (!S_ISREG(smb_fname->st.st_ex_mode)) {
2211 return 0;
2212 }
2213
2214 rc = adouble_path(talloc_tos(), smb_fname, &smb_fname_adp);
2215 if (rc != 0) {
2216 return -1;
2217 }
2218
2219 status = openat_pathref_fsp(handle->conn->cwd_fsp,
2220 smb_fname_adp);
2221 if (!NT_STATUS_IS_OK(status)) {
2222 /* detect ENOENT (mapped to OBJECT_NAME_NOT_FOUND) */
2223 if (NT_STATUS_EQUAL(status,
2224 NT_STATUS_OBJECT_NAME_NOT_FOUND)){
2225 rc = 0;
2226 goto out;
2227 }
2228 rc = -1;
2229 goto out;
2230 }
2231
2232 DBG_DEBUG("%s\n", smb_fname_adp->base_name);
2233
2234 rc = SMB_VFS_NEXT_FCHMOD(handle, smb_fname_adp->fsp, mode);
2235 if (errno == ENOENT) {
2236 rc = 0;
2237 }
2238 out:
2239 TALLOC_FREE(smb_fname_adp);
2240 return rc;
2241 }
2242
2243 static int fruit_unlinkat(vfs_handle_struct *handle,
2244 struct files_struct *dirfsp,
2245 const struct smb_filename *smb_fname,
2246 int flags)
2247 {
2248 struct fruit_config_data *config = NULL;
2249 struct smb_filename *rsrc_smb_fname = NULL;
2250 int ret;
2251
2252 if (flags & AT_REMOVEDIR) {
2253 return SMB_VFS_NEXT_UNLINKAT(handle,
2254 dirfsp,
2255 smb_fname,
2256 AT_REMOVEDIR);
2257 }
2258
2259 SMB_VFS_HANDLE_GET_DATA(handle, config,
2260 struct fruit_config_data, return -1);
2261
2262 if (is_afpinfo_stream(smb_fname->stream_name)) {
2263 return fruit_unlink_meta(handle,
2264 dirfsp,
2265 smb_fname);
2266 } else if (is_afpresource_stream(smb_fname->stream_name)) {
2267 return fruit_unlink_rsrc(handle,
2268 dirfsp,
2269 smb_fname,
2270 false);
2271 } else if (is_named_stream(smb_fname)) {
2272 return SMB_VFS_NEXT_UNLINKAT(handle,
2273 dirfsp,
2274 smb_fname,
2275 0);
2276 } else if (is_adouble_file(smb_fname->base_name)) {
2277 return SMB_VFS_NEXT_UNLINKAT(handle,
2278 dirfsp,
2279 smb_fname,
2280 0);
2281 }
2282
2283 /*
2284 * A request to delete the base file. Because 0 byte resource
2285 * fork streams are not listed by fruit_streaminfo,
2286 * delete_all_streams() can't remove 0 byte resource fork
2287 * streams, so we have to cleanup this here.
2288 */
2289 rsrc_smb_fname = synthetic_smb_fname(talloc_tos(),
2290 smb_fname->base_name,
2291 AFPRESOURCE_STREAM_NAME,
2292 NULL,
2293 smb_fname->twrp,
2294 smb_fname->flags);
2295 if (rsrc_smb_fname == NULL) {
2296 return -1;
2297 }
2298
2299 ret = fruit_unlink_rsrc(handle, dirfsp, rsrc_smb_fname, true);
2300 if ((ret != 0) && (errno != ENOENT)) {
2301 DBG_ERR("Forced unlink of [%s] failed [%s]\n",
2302 smb_fname_str_dbg(rsrc_smb_fname), strerror(errno));
2303 TALLOC_FREE(rsrc_smb_fname);
2304 return -1;
2305 }
2306 TALLOC_FREE(rsrc_smb_fname);
2307
2308 return SMB_VFS_NEXT_UNLINKAT(handle,
2309 dirfsp,
2310 smb_fname,
2311 0);
2312 }
2313
2314 static ssize_t fruit_pread_meta_stream(vfs_handle_struct *handle,
2315 files_struct *fsp, void *data,
2316 size_t n, off_t offset)
2317 {
2318 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2319 ssize_t nread;
2320 int ret;
2321
2322 if ((fio == NULL) || fio->fake_fd) {
2323 return -1;
2324 }
2325
2326 nread = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2327 if (nread == -1 || nread == n) {
2328 return nread;
2329 }
2330
2331 DBG_ERR("Removing [%s] after short read [%zd]\n",
2332 fsp_str_dbg(fsp), nread);
2333
2334 ret = SMB_VFS_NEXT_UNLINKAT(handle,
2335 fsp->conn->cwd_fsp,
2336 fsp->fsp_name,
2337 0);
2338 if (ret != 0) {
2339 DBG_ERR("Removing [%s] failed\n", fsp_str_dbg(fsp));
2340 return -1;
2341 }
2342
2343 errno = EINVAL;
2344 return -1;
2345 }
2346
2347 static ssize_t fruit_pread_meta_adouble(vfs_handle_struct *handle,
2348 files_struct *fsp, void *data,
2349 size_t n, off_t offset)
2350 {
2351 AfpInfo *ai = NULL;
2352 struct adouble *ad = NULL;
2353 char afpinfo_buf[AFP_INFO_SIZE];
2354 char *p = NULL;
2355 ssize_t nread;
2356
2357 ai = afpinfo_new(talloc_tos());
2358 if (ai == NULL) {
2359 return -1;
2360 }
2361
2362 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_META);
2363 if (ad == NULL) {
2364 nread = -1;
2365 goto fail;
2366 }
2367
2368 p = ad_get_entry(ad, ADEID_FINDERI);
2369 if (p == NULL) {
2370 DBG_ERR("No ADEID_FINDERI for [%s]\n", fsp_str_dbg(fsp));
2371 nread = -1;
2372 goto fail;
2373 }
2374
2375 memcpy(&ai->afpi_FinderInfo[0], p, ADEDLEN_FINDERI);
2376
2377 nread = afpinfo_pack(ai, afpinfo_buf);
2378 if (nread != AFP_INFO_SIZE) {
2379 nread = -1;
2380 goto fail;
2381 }
2382
2383 memcpy(data, afpinfo_buf, n);
2384 nread = n;
2385
2386 fail:
2387 TALLOC_FREE(ai);
2388 return nread;
2389 }
2390
2391 static ssize_t fruit_pread_meta(vfs_handle_struct *handle,
2392 files_struct *fsp, void *data,
2393 size_t n, off_t offset)
2394 {
2395 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2396 ssize_t nread;
2397 ssize_t to_return;
2398
2399 /*
2400 * OS X has a off-by-1 error in the offset calculation, so we're
2401 * bug compatible here. It won't hurt, as any relevant real
2402 * world read requests from the AFP_AfpInfo stream will be
2403 * offset=0 n=60. offset is ignored anyway, see below.
2404 */
2405 if ((offset < 0) || (offset >= AFP_INFO_SIZE + 1)) {
2406 return 0;
2407 }
2408
2409 if (fio == NULL) {
2410 DBG_ERR("Failed to fetch fsp extension");
2411 return -1;
2412 }
2413
2414 /* Yes, macOS always reads from offset 0 */
2415 offset = 0;
2416 to_return = MIN(n, AFP_INFO_SIZE);
2417
2418 switch (fio->config->meta) {
2419 case FRUIT_META_STREAM:
2420 nread = fruit_pread_meta_stream(handle, fsp, data,
2421 to_return, offset);
2422 break;
2423
2424 case FRUIT_META_NETATALK:
2425 nread = fruit_pread_meta_adouble(handle, fsp, data,
2426 to_return, offset);
2427 break;
2428
2429 default:
2430 DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
2431 return -1;
2432 }
2433
2434 if (nread == -1 && fio->fake_fd) {
2435 AfpInfo *ai = NULL;
2436 char afpinfo_buf[AFP_INFO_SIZE];
2437
2438 ai = afpinfo_new(talloc_tos());
2439 if (ai == NULL) {
2440 return -1;
2441 }
2442
2443 nread = afpinfo_pack(ai, afpinfo_buf);
2444 TALLOC_FREE(ai);
2445 if (nread != AFP_INFO_SIZE) {
2446 return -1;
2447 }
2448
2449 memcpy(data, afpinfo_buf, to_return);
2450 return to_return;
2451 }
2452
2453 return nread;
2454 }
2455
2456 static ssize_t fruit_pread_rsrc_stream(vfs_handle_struct *handle,
2457 files_struct *fsp, void *data,
2458 size_t n, off_t offset)
2459 {
2460 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2461 }
2462
2463 static ssize_t fruit_pread_rsrc_xattr(vfs_handle_struct *handle,
2464 files_struct *fsp, void *data,
2465 size_t n, off_t offset)
2466 {
2467 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2468 }
2469
2470 static ssize_t fruit_pread_rsrc_adouble(vfs_handle_struct *handle,
2471 files_struct *fsp, void *data,
2472 size_t n, off_t offset)
2473 {
2474 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2475 struct adouble *ad = NULL;
2476 ssize_t nread;
2477
2478 if (fio == NULL || fio->ad_fsp == NULL) {
2479 DBG_ERR("fio/ad_fsp=NULL for [%s]\n", fsp_str_dbg(fsp));
2480 errno = EBADF;
2481 return -1;
2482 }
2483
2484 ad = ad_fget(talloc_tos(), handle, fio->ad_fsp, ADOUBLE_RSRC);
2485 if (ad == NULL) {
2486 DBG_ERR("ad_fget [%s] failed [%s]\n",
2487 fsp_str_dbg(fio->ad_fsp), strerror(errno));
2488 return -1;
2489 }
2490
2491 nread = SMB_VFS_NEXT_PREAD(handle, fio->ad_fsp, data, n,
2492 offset + ad_getentryoff(ad, ADEID_RFORK));
2493
2494 TALLOC_FREE(ad);
2495 return nread;
2496 }
2497
2498 static ssize_t fruit_pread_rsrc(vfs_handle_struct *handle,
2499 files_struct *fsp, void *data,
2500 size_t n, off_t offset)
2501 {
2502 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2503 ssize_t nread;
2504
2505 if (fio == NULL) {
2506 errno = EINVAL;
2507 return -1;
2508 }
2509
2510 switch (fio->config->rsrc) {
2511 case FRUIT_RSRC_STREAM:
2512 nread = fruit_pread_rsrc_stream(handle, fsp, data, n, offset);
2513 break;
2514
2515 case FRUIT_RSRC_ADFILE:
2516 nread = fruit_pread_rsrc_adouble(handle, fsp, data, n, offset);
2517 break;
2518
2519 case FRUIT_RSRC_XATTR:
2520 nread = fruit_pread_rsrc_xattr(handle, fsp, data, n, offset);
2521 break;
2522
2523 default:
2524 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
2525 return -1;
2526 }
2527
2528 return nread;
2529 }
2530
2531 static ssize_t fruit_pread(vfs_handle_struct *handle,
2532 files_struct *fsp, void *data,
2533 size_t n, off_t offset)
2534 {
2535 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2536 ssize_t nread;
2537
2538 DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
2539 fsp_str_dbg(fsp), (intmax_t)offset, n);
2540
2541 if (fio == NULL) {
2542 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2543 }
2544
2545 if (fio->type == ADOUBLE_META) {
2546 nread = fruit_pread_meta(handle, fsp, data, n, offset);
2547 } else {
2548 nread = fruit_pread_rsrc(handle, fsp, data, n, offset);
2549 }
2550
2551 DBG_DEBUG("Path [%s] nread [%zd]\n", fsp_str_dbg(fsp), nread);
2552 return nread;
2553 }
2554
2555 static bool fruit_must_handle_aio_stream(struct fio *fio)
2556 {
2557 if (fio == NULL) {
2558 return false;
2559 };
2560
2561 if (fio->type == ADOUBLE_META) {
2562 return true;
2563 }
2564
2565 if ((fio->type == ADOUBLE_RSRC) &&
2566 (fio->config->rsrc == FRUIT_RSRC_ADFILE))
2567 {
2568 return true;
2569 }
2570
2571 return false;
2572 }
2573
2574 struct fruit_pread_state {
2575 ssize_t nread;
2576 struct vfs_aio_state vfs_aio_state;
2577 };
2578
2579 static void fruit_pread_done(struct tevent_req *subreq);
2580
2581 static struct tevent_req *fruit_pread_send(
2582 struct vfs_handle_struct *handle,
2583 TALLOC_CTX *mem_ctx,
2584 struct tevent_context *ev,
2585 struct files_struct *fsp,
2586 void *data,
2587 size_t n, off_t offset)
2588 {
2589 struct tevent_req *req = NULL;
2590 struct tevent_req *subreq = NULL;
2591 struct fruit_pread_state *state = NULL;
2592 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2593
2594 req = tevent_req_create(mem_ctx, &state,
2595 struct fruit_pread_state);
2596 if (req == NULL) {
2597 return NULL;
2598 }
2599
2600 if (fruit_must_handle_aio_stream(fio)) {
2601 state->nread = SMB_VFS_PREAD(fsp, data, n, offset);
2602 if (state->nread != n) {
2603 if (state->nread != -1) {
2604 errno = EIO;
2605 }
2606 tevent_req_error(req, errno);
2607 return tevent_req_post(req, ev);
2608 }
2609 tevent_req_done(req);
2610 return tevent_req_post(req, ev);
2611 }
2612
2613 subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp,
2614 data, n, offset);
2615 if (tevent_req_nomem(req, subreq)) {
2616 return tevent_req_post(req, ev);
2617 }
2618 tevent_req_set_callback(subreq, fruit_pread_done, req);
2619 return req;
2620 }
2621
2622 static void fruit_pread_done(struct tevent_req *subreq)
2623 {
2624 struct tevent_req *req = tevent_req_callback_data(
2625 subreq, struct tevent_req);
2626 struct fruit_pread_state *state = tevent_req_data(
2627 req, struct fruit_pread_state);
2628
2629 state->nread = SMB_VFS_PREAD_RECV(subreq, &state->vfs_aio_state);
2630 TALLOC_FREE(subreq);
2631
2632 if (tevent_req_error(req, state->vfs_aio_state.error)) {
2633 return;
2634 }
2635 tevent_req_done(req);
2636 }
2637
2638 static ssize_t fruit_pread_recv(struct tevent_req *req,
2639 struct vfs_aio_state *vfs_aio_state)
2640 {
2641 struct fruit_pread_state *state = tevent_req_data(
2642 req, struct fruit_pread_state);
2643 ssize_t retval = -1;
2644
2645 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
2646 tevent_req_received(req);
2647 return -1;
2648 }
2649
2650 *vfs_aio_state = state->vfs_aio_state;
2651 retval = state->nread;
2652 tevent_req_received(req);
2653 return retval;
2654 }
2655
2656 static ssize_t fruit_pwrite_meta_stream(vfs_handle_struct *handle,
2657 files_struct *fsp, const void *data,
2658 size_t n, off_t offset)
2659 {
2660 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2661 AfpInfo *ai = NULL;
2662 size_t nwritten;
2663 int ret;
2664 bool ok;
2665
2666 DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
2667 fsp_str_dbg(fsp), (intmax_t)offset, n);
2668
2669 if (fio == NULL) {
2670 return -1;
2671 }
2672
2673 if (fio->fake_fd) {
2674 struct vfs_open_how how = {
2675 .flags = fio->flags, .mode = fio->mode,
2676 };
2677 int fd = fsp_get_pathref_fd(fsp);
2678
2679 ret = vfs_fake_fd_close(fd);
2680 fsp_set_fd(fsp, -1);
2681 if (ret != 0) {
2682 DBG_ERR("Close [%s] failed: %s\n",
2683 fsp_str_dbg(fsp), strerror(errno));
2684 return -1;
2685 }
2686
2687 fd = SMB_VFS_NEXT_OPENAT(handle,
2688 NULL, /* opening a stream */
2689 fsp->fsp_name,
2690 fsp,
2691 &how);
2692 if (fd == -1) {
2693 DBG_ERR("On-demand create [%s] in write failed: %s\n",
2694 fsp_str_dbg(fsp), strerror(errno));
2695 return -1;
2696 }
2697 fsp_set_fd(fsp, fd);
2698 fio->fake_fd = false;
2699 }
2700
2701 ai = afpinfo_unpack(talloc_tos(), data);
2702 if (ai == NULL) {
2703 return -1;
2704 }
2705
2706 if (ai_empty_finderinfo(ai)) {
2707 /*
2708 * Writing an all 0 blob to the metadata stream results in the
2709 * stream being removed on a macOS server. This ensures we
2710 * behave the same and it verified by the "delete AFP_AfpInfo by
2711 * writing all 0" test.
2712 */
2713 ret = SMB_VFS_NEXT_FTRUNCATE(handle, fsp, 0);
2714 if (ret != 0) {
2715 DBG_ERR("SMB_VFS_NEXT_FTRUNCATE on [%s] failed\n",
2716 fsp_str_dbg(fsp));
2717 return -1;
2718 }
2719
2720 ok = set_delete_on_close(
2721 fsp,
2722 true,
2723 handle->conn->session_info->security_token,
2724 handle->conn->session_info->unix_token);
2725 if (!ok) {
2726 DBG_ERR("set_delete_on_close on [%s] failed\n",
2727 fsp_str_dbg(fsp));
2728 return -1;
2729 }
2730 return n;
2731 }
2732
2733 nwritten = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2734 if (nwritten != n) {
2735 return -1;
2736 }
2737
2738 return n;
2739 }
2740
2741 static ssize_t fruit_pwrite_meta_netatalk(vfs_handle_struct *handle,
2742 files_struct *fsp, const void *data,
2743 size_t n, off_t offset)
2744 {
2745 struct adouble *ad = NULL;
2746 AfpInfo *ai = NULL;
2747 char *p = NULL;
2748 int ret;
2749 bool ok;
2750
2751 ai = afpinfo_unpack(talloc_tos(), data);
2752 if (ai == NULL) {
2753 return -1;
2754 }
2755
2756 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_META);
2757 if (ad == NULL) {
2758 ad = ad_init(talloc_tos(), ADOUBLE_META);
2759 if (ad == NULL) {
2760 return -1;
2761 }
2762 }
2763 p = ad_get_entry(ad, ADEID_FINDERI);
2764 if (p == NULL) {
2765 DBG_ERR("No ADEID_FINDERI for [%s]\n", fsp_str_dbg(fsp));
2766 TALLOC_FREE(ad);
2767 return -1;
2768 }
2769
2770 memcpy(p, &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
2771
2772 ret = ad_fset(handle, ad, fsp);
2773 if (ret != 0) {
2774 DBG_ERR("ad_pwrite [%s] failed\n", fsp_str_dbg(fsp));
2775 TALLOC_FREE(ad);
2776 return -1;
2777 }
2778
2779 TALLOC_FREE(ad);
2780
2781 if (!ai_empty_finderinfo(ai)) {
2782 return n;
2783 }
2784
2785 /*
2786 * Writing an all 0 blob to the metadata stream results in the stream
2787 * being removed on a macOS server. This ensures we behave the same and
2788 * it verified by the "delete AFP_AfpInfo by writing all 0" test.
2789 */
2790
2791 ok = set_delete_on_close(
2792 fsp,
2793 true,
2794 handle->conn->session_info->security_token,
2795 handle->conn->session_info->unix_token);
2796 if (!ok) {
2797 DBG_ERR("set_delete_on_close on [%s] failed\n",
2798 fsp_str_dbg(fsp));
2799 return -1;
2800 }
2801
2802 return n;
2803 }
2804
2805 static ssize_t fruit_pwrite_meta(vfs_handle_struct *handle,
2806 files_struct *fsp, const void *data,
2807 size_t n, off_t offset)
2808 {
2809 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2810 ssize_t nwritten;
2811 uint8_t buf[AFP_INFO_SIZE];
2812 size_t to_write;
2813 size_t to_copy;
2814 int cmp;
2815
2816 if (fio == NULL) {
2817 DBG_ERR("Failed to fetch fsp extension");
2818 return -1;
2819 }
2820
2821 if (n < 3) {
2822 errno = EINVAL;
2823 return -1;
2824 }
2825
2826 if (offset != 0 && n < 60) {
2827 errno = EINVAL;
2828 return -1;
2829 }
2830
2831 cmp = memcmp(data, "AFP", 3);
2832 if (cmp != 0) {
2833 errno = EINVAL;
2834 return -1;
2835 }
2836
2837 if (n <= AFP_OFF_FinderInfo) {
2838 /*
2839 * Nothing to do here really, just return
2840 */
2841 return n;
2842 }
2843
2844 offset = 0;
2845
2846 to_copy = n;
2847 if (to_copy > AFP_INFO_SIZE) {
2848 to_copy = AFP_INFO_SIZE;
2849 }
2850 memcpy(buf, data, to_copy);
2851
2852 to_write = n;
2853 if (to_write != AFP_INFO_SIZE) {
2854 to_write = AFP_INFO_SIZE;
2855 }
2856
2857 switch (fio->config->meta) {
2858 case FRUIT_META_STREAM:
2859 nwritten = fruit_pwrite_meta_stream(handle,
2860 fsp,
2861 buf,
2862 to_write,
2863 offset);
2864 break;
2865
2866 case FRUIT_META_NETATALK:
2867 nwritten = fruit_pwrite_meta_netatalk(handle,
2868 fsp,
2869 buf,
2870 to_write,
2871 offset);
2872 break;
2873
2874 default:
2875 DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
2876 return -1;
2877 }
2878
2879 if (nwritten != to_write) {
2880 return -1;
2881 }
2882
2883 /*
2884 * Return the requested amount, verified against macOS SMB server
2885 */
2886 return n;
2887 }
2888
2889 static ssize_t fruit_pwrite_rsrc_stream(vfs_handle_struct *handle,
2890 files_struct *fsp, const void *data,
2891 size_t n, off_t offset)
2892 {
2893 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2894 }
2895
2896 static ssize_t fruit_pwrite_rsrc_xattr(vfs_handle_struct *handle,
2897 files_struct *fsp, const void *data,
2898 size_t n, off_t offset)
2899 {
2900 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2901 }
2902
2903 static ssize_t fruit_pwrite_rsrc_adouble(vfs_handle_struct *handle,
2904 files_struct *fsp, const void *data,
2905 size_t n, off_t offset)
2906 {
2907 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2908 struct adouble *ad = NULL;
2909 ssize_t nwritten;
2910 int ret;
2911
2912 if (fio == NULL || fio->ad_fsp == NULL) {
2913 DBG_ERR("fio/ad_fsp=NULL for [%s]\n", fsp_str_dbg(fsp));
2914 errno = EBADF;
2915 return -1;
2916 }
2917
2918 ad = ad_fget(talloc_tos(), handle, fio->ad_fsp, ADOUBLE_RSRC);
2919 if (ad == NULL) {
2920 DBG_ERR("ad_fget [%s] failed [%s]\n",
2921 fsp_str_dbg(fio->ad_fsp), strerror(errno));
2922 return -1;
2923 }
2924
2925 nwritten = SMB_VFS_NEXT_PWRITE(handle, fio->ad_fsp, data, n,
2926 offset + ad_getentryoff(ad, ADEID_RFORK));
2927 if (nwritten != n) {
2928 DBG_ERR("Short write on [%s] [%zd/%zd]\n",
2929 fsp_str_dbg(fio->ad_fsp), nwritten, n);
2930 TALLOC_FREE(ad);
2931 return -1;
2932 }
2933
2934 if ((n + offset) > ad_getentrylen(ad, ADEID_RFORK)) {
2935 ad_setentrylen(ad, ADEID_RFORK, n + offset);
2936 ret = ad_fset(handle, ad, fio->ad_fsp);
2937 if (ret != 0) {
2938 DBG_ERR("ad_pwrite [%s] failed\n", fsp_str_dbg(fio->ad_fsp));
2939 TALLOC_FREE(ad);
2940 return -1;
2941 }
2942 }
2943
2944 TALLOC_FREE(ad);
2945 return n;
2946 }
2947
2948 static ssize_t fruit_pwrite_rsrc(vfs_handle_struct *handle,
2949 files_struct *fsp, const void *data,
2950 size_t n, off_t offset)
2951 {
2952 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2953 ssize_t nwritten;
2954
2955 if (fio == NULL) {
2956 DBG_ERR("Failed to fetch fsp extension");
2957 return -1;
2958 }
2959
2960 switch (fio->config->rsrc) {
2961 case FRUIT_RSRC_STREAM:
2962 nwritten = fruit_pwrite_rsrc_stream(handle, fsp, data, n, offset);
2963 break;
2964
2965 case FRUIT_RSRC_ADFILE:
2966 nwritten = fruit_pwrite_rsrc_adouble(handle, fsp, data, n, offset);
2967 break;
2968
2969 case FRUIT_RSRC_XATTR:
2970 nwritten = fruit_pwrite_rsrc_xattr(handle, fsp, data, n, offset);
2971 break;
2972
2973 default:
2974 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
2975 return -1;
2976 }
2977
2978 return nwritten;
2979 }
2980
2981 static ssize_t fruit_pwrite(vfs_handle_struct *handle,
2982 files_struct *fsp, const void *data,
2983 size_t n, off_t offset)
2984 {
2985 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2986 ssize_t nwritten;
2987
2988 DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
2989 fsp_str_dbg(fsp), (intmax_t)offset, n);
2990
2991 if (fio == NULL) {
2992 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2993 }
2994
2995 if (fio->type == ADOUBLE_META) {
2996 nwritten = fruit_pwrite_meta(handle, fsp, data, n, offset);
2997 } else {
2998 nwritten = fruit_pwrite_rsrc(handle, fsp, data, n, offset);
2999 }
3000
3001 DBG_DEBUG("Path [%s] nwritten=%zd\n", fsp_str_dbg(fsp), nwritten);
3002 return nwritten;
3003 }
3004
3005 struct fruit_pwrite_state {
3006 ssize_t nwritten;
3007 struct vfs_aio_state vfs_aio_state;
3008 };
3009
3010 static void fruit_pwrite_done(struct tevent_req *subreq);
3011
3012 static struct tevent_req *fruit_pwrite_send(
3013 struct vfs_handle_struct *handle,
3014 TALLOC_CTX *mem_ctx,
3015 struct tevent_context *ev,
3016 struct files_struct *fsp,
3017 const void *data,
3018 size_t n, off_t offset)
3019 {
3020 struct tevent_req *req = NULL;
3021 struct tevent_req *subreq = NULL;
3022 struct fruit_pwrite_state *state = NULL;
3023 struct fio *fio = fruit_get_complete_fio(handle, fsp);
3024
3025 req = tevent_req_create(mem_ctx, &state,
3026 struct fruit_pwrite_state);
3027 if (req == NULL) {
3028 return NULL;
3029 }
3030
3031 if (fruit_must_handle_aio_stream(fio)) {
3032 state->nwritten = SMB_VFS_PWRITE(fsp, data, n, offset);
3033 if (state->nwritten != n) {
3034 if (state->nwritten != -1) {
3035 errno = EIO;
3036 }
3037 tevent_req_error(req, errno);
3038 return tevent_req_post(req, ev);
3039 }
3040 tevent_req_done(req);
3041 return tevent_req_post(req, ev);
3042 }
3043
3044 subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp,
3045 data, n, offset);
3046 if (tevent_req_nomem(req, subreq)) {
3047 return tevent_req_post(req, ev);
3048 }
3049 tevent_req_set_callback(subreq, fruit_pwrite_done, req);
3050 return req;
3051 }
3052
3053 static void fruit_pwrite_done(struct tevent_req *subreq)
3054 {
3055 struct tevent_req *req = tevent_req_callback_data(
3056 subreq, struct tevent_req);
3057 struct fruit_pwrite_state *state = tevent_req_data(
3058 req, struct fruit_pwrite_state);
3059
3060 state->nwritten = SMB_VFS_PWRITE_RECV(subreq, &state->vfs_aio_state);
3061 TALLOC_FREE(subreq);
3062
3063 if (tevent_req_error(req, state->vfs_aio_state.error)) {
3064 return;
3065 }
3066 tevent_req_done(req);
3067 }
3068
3069 static ssize_t fruit_pwrite_recv(struct tevent_req *req,
3070 struct vfs_aio_state *vfs_aio_state)
3071 {
3072 struct fruit_pwrite_state *state = tevent_req_data(
3073 req, struct fruit_pwrite_state);
3074 ssize_t retval = -1;
3075
3076 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
3077 tevent_req_received(req);
3078 return -1;
3079 }
3080
3081 *vfs_aio_state = state->vfs_aio_state;
3082 retval = state->nwritten;
3083 tevent_req_received(req);
3084 return retval;
3085 }
3086
3087 struct fruit_fsync_state {
3088 int ret;
3089 struct vfs_aio_state vfs_aio_state;
3090 };
3091
3092 static void fruit_fsync_done(struct tevent_req *subreq);
3093
3094 static struct tevent_req *fruit_fsync_send(
3095 struct vfs_handle_struct *handle,
3096 TALLOC_CTX *mem_ctx,
3097 struct tevent_context *ev,
3098 struct files_struct *fsp)
3099 {
3100 struct tevent_req *req = NULL;
3101 struct tevent_req *subreq = NULL;
3102 struct fruit_fsync_state *state = NULL;
3103 struct fio *fio = fruit_get_complete_fio(handle, fsp);
3104
3105 req = tevent_req_create(mem_ctx, &state,
3106 struct fruit_fsync_state);
3107 if (req == NULL) {
3108 return NULL;
3109 }
3110
3111 if (fruit_must_handle_aio_stream(fio)) {
3112 struct adouble *ad = NULL;
3113
3114 if (fio->type == ADOUBLE_META) {
3115 /*
3116 * We must never pass a fake_fd
3117 * to lower level fsync calls.
3118 * Everything is already done
3119 * synchronously, so just return
3120 * true.
3121 */
3122 SMB_ASSERT(fio->fake_fd);
3123 tevent_req_done(req);
3124 return tevent_req_post(req, ev);
3125 }
3126
3127 /*
3128 * We know the following must be true,
3129 * as it's the condition for fruit_must_handle_aio_stream()
3130 * to return true if fio->type == ADOUBLE_RSRC.
3131 */
3132 SMB_ASSERT(fio->config->rsrc == FRUIT_RSRC_ADFILE);
3133 if (fio->ad_fsp == NULL) {
3134 tevent_req_error(req, EBADF);
3135 return tevent_req_post(req, ev);
3136 }
3137 ad = ad_fget(talloc_tos(), handle, fio->ad_fsp, ADOUBLE_RSRC);
3138 if (ad == NULL) {
3139 tevent_req_error(req, ENOMEM);
3140 return tevent_req_post(req, ev);
3141 }
3142 fsp = fio->ad_fsp;
3143 }
3144
3145 subreq = SMB_VFS_NEXT_FSYNC_SEND(state, ev, handle, fsp);
3146 if (tevent_req_nomem(req, subreq)) {
3147 return tevent_req_post(req, ev);
3148 }
3149 tevent_req_set_callback(subreq, fruit_fsync_done, req);
3150 return req;
3151 }
3152
3153 static void fruit_fsync_done(struct tevent_req *subreq)
3154 {
3155 struct tevent_req *req = tevent_req_callback_data(
3156 subreq, struct tevent_req);
3157 struct fruit_fsync_state *state = tevent_req_data(
3158 req, struct fruit_fsync_state);
3159
3160 state->ret = SMB_VFS_FSYNC_RECV(subreq, &state->vfs_aio_state);
3161 TALLOC_FREE(subreq);
3162 if (state->ret != 0) {
3163 tevent_req_error(req, errno);
3164 return;
3165 }
3166 tevent_req_done(req);
3167 }
3168
3169 static int fruit_fsync_recv(struct tevent_req *req,
3170 struct vfs_aio_state *vfs_aio_state)
3171 {
3172 struct fruit_fsync_state *state = tevent_req_data(
3173 req, struct fruit_fsync_state);
3174 int retval = -1;
3175
3176 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
3177 tevent_req_received(req);
3178 return -1;
3179 }
3180
3181 *vfs_aio_state = state->vfs_aio_state;
3182 retval = state->ret;
3183 tevent_req_received(req);
3184 return retval;
3185 }
3186
3187 /**
3188 * Helper to stat/lstat the base file of an smb_fname.
3189 */
3190 static int fruit_stat_base(vfs_handle_struct *handle,
3191 struct smb_filename *smb_fname,
3192 bool follow_links)
3193 {
3194 char *tmp_stream_name;
3195 int rc;
3196
3197 tmp_stream_name = smb_fname->stream_name;
3198 smb_fname->stream_name = NULL;
3199 if (follow_links) {
3200 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
3201 } else {
3202 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
3203 }
3204 smb_fname->stream_name = tmp_stream_name;
3205
3206 DBG_DEBUG("fruit_stat_base [%s] dev [%ju] ino [%ju]\n",
3207 smb_fname->base_name,
3208 (uintmax_t)smb_fname->st.st_ex_dev,
3209 (uintmax_t)smb_fname->st.st_ex_ino);
3210 return rc;
3211 }
3212
3213 static int fruit_stat_meta_stream(vfs_handle_struct *handle,
3214 struct smb_filename *smb_fname,
3215 bool follow_links)
3216 {
3217 int ret;
3218 ino_t ino;
3219
3220 ret = fruit_stat_base(handle, smb_fname, false);
3221 if (ret != 0) {
3222 return -1;
3223 }
3224
3225 ino = hash_inode(&smb_fname->st, smb_fname->stream_name);
3226
3227 if (follow_links) {
3228 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
3229 } else {
3230 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
3231 }
3232
3233 smb_fname->st.st_ex_ino = ino;
3234
3235 return ret;
3236 }
3237
3238 static int fruit_stat_meta_netatalk(vfs_handle_struct *handle,
3239 struct smb_filename *smb_fname,
3240 bool follow_links)
3241 {
3242 struct adouble *ad = NULL;
3243
3244 /* Populate the stat struct with info from the base file. */
3245 if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
3246 return -1;
3247 }
3248
3249 ad = ad_get_meta_fsp(talloc_tos(), handle, smb_fname);
3250 if (ad == NULL) {
3251 DBG_INFO("fruit_stat_meta %s: %s\n",
3252 smb_fname_str_dbg(smb_fname), strerror(errno));
3253 errno = ENOENT;
3254 return -1;
3255 }
3256 TALLOC_FREE(ad);
3257
3258 smb_fname->st.st_ex_size = AFP_INFO_SIZE;
3259 smb_fname->st.st_ex_ino = hash_inode(&smb_fname->st,
3260 smb_fname->stream_name);
3261 return 0;
3262 }
3263
3264 static int fruit_stat_meta(vfs_handle_struct *handle,
3265 struct smb_filename *smb_fname,
3266 bool follow_links)
3267 {
3268 struct fruit_config_data *config = NULL;
3269 int ret;
3270
3271 SMB_VFS_HANDLE_GET_DATA(handle, config,
3272 struct fruit_config_data, return -1);
3273
3274 switch (config->meta) {
3275 case FRUIT_META_STREAM:
3276 ret = fruit_stat_meta_stream(handle, smb_fname, follow_links);
3277 break;
3278
3279 case FRUIT_META_NETATALK:
3280 ret = fruit_stat_meta_netatalk(handle, smb_fname, follow_links);
3281 break;
3282
3283 default:
3284 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
3285 return -1;
3286 }
3287
3288 return ret;
3289 }
3290
3291 static int fruit_stat_rsrc_netatalk(vfs_handle_struct *handle,
3292 struct smb_filename *smb_fname,
3293 bool follow_links)
3294 {
3295 struct adouble *ad = NULL;
3296 int ret;
3297
3298 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_RSRC);
3299 if (ad == NULL) {
3300 errno = ENOENT;
3301 return -1;
3302 }
3303
3304 /* Populate the stat struct with info from the base file. */
3305 ret = fruit_stat_base(handle, smb_fname, follow_links);
3306 if (ret != 0) {
3307 TALLOC_FREE(ad);
3308 return -1;
3309 }
3310
3311 smb_fname->st.st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
3312 smb_fname->st.st_ex_ino = hash_inode(&smb_fname->st,
3313 smb_fname->stream_name);
3314 TALLOC_FREE(ad);
3315 return 0;
3316 }
3317
3318 static int fruit_stat_rsrc_stream(vfs_handle_struct *handle,
3319 struct smb_filename *smb_fname,
3320 bool follow_links)
3321 {
3322 int ret;
3323
3324 if (follow_links) {
3325 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
3326 } else {
3327 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
3328 }
3329
3330 return ret;
3331 }
3332
3333 static int fruit_stat_rsrc_xattr(vfs_handle_struct *handle,
3334 struct smb_filename *smb_fname,
3335 bool follow_links)
3336 {
3337 #ifdef HAVE_ATTROPEN
3338 int ret;
3339 int fd = -1;
3340
3341 /* Populate the stat struct with info from the base file. */
3342 ret = fruit_stat_base(handle, smb_fname, follow_links);
3343 if (ret != 0) {
3344 return -1;
3345 }
3346
3347 fd = attropen(smb_fname->base_name,
3348 AFPRESOURCE_EA_NETATALK,
3349 O_RDONLY);
3350 if (fd == -1) {
3351 return 0;
3352 }
3353
3354 ret = sys_fstat(fd, &smb_fname->st, false);
3355 if (ret != 0) {
3356 close(fd);
3357 DBG_ERR("fstat [%s:%s] failed\n", smb_fname->base_name,
3358 AFPRESOURCE_EA_NETATALK);
3359 return -1;
3360 }
3361 close(fd);
3362 fd = -1;
3363
3364 smb_fname->st.st_ex_ino = hash_inode(&smb_fname->st,
3365 smb_fname->stream_name);
3366
3367 return ret;
3368
3369 #else
3370 errno = ENOSYS;
3371 return -1;
3372 #endif
3373 }
3374
3375 static int fruit_stat_rsrc(vfs_handle_struct *handle,
3376 struct smb_filename *smb_fname,
3377 bool follow_links)
3378 {
3379 struct fruit_config_data *config = NULL;
3380 int ret;
3381
3382 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
3383
3384 SMB_VFS_HANDLE_GET_DATA(handle, config,
3385 struct fruit_config_data, return -1);
3386
3387 switch (config->rsrc) {
3388 case FRUIT_RSRC_STREAM:
3389 ret = fruit_stat_rsrc_stream(handle, smb_fname, follow_links);
3390 break;
3391
3392 case FRUIT_RSRC_XATTR:
3393 ret = fruit_stat_rsrc_xattr(handle, smb_fname, follow_links);
3394 break;
3395
3396 case FRUIT_RSRC_ADFILE:
3397 ret = fruit_stat_rsrc_netatalk(handle, smb_fname, follow_links);
3398 break;
3399
3400 default:
3401 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
3402 return -1;
3403 }
3404
3405 return ret;
3406 }
3407
3408 static int fruit_stat(vfs_handle_struct *handle,
3409 struct smb_filename *smb_fname)
3410 {
3411 int rc = -1;
3412
3413 DEBUG(10, ("fruit_stat called for %s\n",
3414 smb_fname_str_dbg(smb_fname)));
3415
3416 if (!is_named_stream(smb_fname)) {
3417 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
3418 if (rc == 0) {
3419 update_btime(handle, smb_fname);
3420 }
3421 return rc;
3422 }
3423
3424 /*
3425 * Note if lp_posix_paths() is true, we can never
3426 * get here as is_ntfs_stream_smb_fname() is
3427 * always false. So we never need worry about
3428 * not following links here.
3429 */
3430
3431 if (is_afpinfo_stream(smb_fname->stream_name)) {
3432 rc = fruit_stat_meta(handle, smb_fname, true);
3433 } else if (is_afpresource_stream(smb_fname->stream_name)) {
3434 rc = fruit_stat_rsrc(handle, smb_fname, true);
3435 } else {
3436 return SMB_VFS_NEXT_STAT(handle, smb_fname);
3437 }
3438
3439 if (rc == 0) {
3440 update_btime(handle, smb_fname);
3441 smb_fname->st.st_ex_mode &= ~S_IFMT;
3442 smb_fname->st.st_ex_mode |= S_IFREG;
3443 smb_fname->st.st_ex_blocks =
3444 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
3445 }
3446 return rc;
3447 }
3448
3449 static int fruit_lstat(vfs_handle_struct *handle,
3450 struct smb_filename *smb_fname)
3451 {
3452 int rc = -1;
3453
3454 DEBUG(10, ("fruit_lstat called for %s\n",
3455 smb_fname_str_dbg(smb_fname)));
3456
3457 if (!is_named_stream(smb_fname)) {
3458 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
3459 if (rc == 0) {
3460 update_btime(handle, smb_fname);
3461 }
3462 return rc;
3463 }
3464
3465 if (is_afpinfo_stream(smb_fname->stream_name)) {
3466 rc = fruit_stat_meta(handle, smb_fname, false);
3467 } else if (is_afpresource_stream(smb_fname->stream_name)) {
3468 rc = fruit_stat_rsrc(handle, smb_fname, false);
3469 } else {
3470 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
3471 }
3472
3473 if (rc == 0) {
3474 update_btime(handle, smb_fname);
3475 smb_fname->st.st_ex_mode &= ~S_IFMT;
3476 smb_fname->st.st_ex_mode |= S_IFREG;
3477 smb_fname->st.st_ex_blocks =
3478 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
3479 }
3480 return rc;
3481 }
3482
3483 static int fruit_fstat_meta_stream(vfs_handle_struct *handle,
3484 files_struct *fsp,
3485 SMB_STRUCT_STAT *sbuf)
3486 {
3487 struct fio *fio = fruit_get_complete_fio(handle, fsp);
3488 struct smb_filename smb_fname;
3489 ino_t ino;
3490 int ret;
3491
3492 if (fio == NULL) {
3493 return -1;
3494 }
3495
3496 if (fio->fake_fd) {
3497 ret = fruit_stat_base(handle, fsp->base_fsp->fsp_name, false);
3498 if (ret != 0) {
3499 return -1;
3500 }
3501
3502 *sbuf = fsp->base_fsp->fsp_name->st;
3503 sbuf->st_ex_size = AFP_INFO_SIZE;
3504 sbuf->st_ex_ino = hash_inode(sbuf, fsp->fsp_name->stream_name);
3505 return 0;
3506 }
3507
3508 smb_fname = (struct smb_filename) {
3509 .base_name = fsp->fsp_name->base_name,
3510 .twrp = fsp->fsp_name->twrp,
3511 };
3512
3513 ret = fruit_stat_base(handle, &smb_fname, false);
3514 if (ret != 0) {
3515 return -1;
3516 }
3517 *sbuf = smb_fname.st;
3518
3519 ino = hash_inode(sbuf, fsp->fsp_name->stream_name);
3520
3521 ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
3522 if (ret != 0) {
3523 return -1;
3524 }
3525
3526 sbuf->st_ex_ino = ino;
3527 return 0;
3528 }
3529
3530 static int fruit_fstat_meta_netatalk(vfs_handle_struct *handle,
3531 files_struct *fsp,
3532 SMB_STRUCT_STAT *sbuf)
3533 {
3534 int ret;
3535
3536 ret = fruit_stat_base(handle, fsp->base_fsp->fsp_name, false);
3537 if (ret != 0) {
3538 return -1;
3539 }
3540
3541 *sbuf = fsp->base_fsp->fsp_name->st;
3542 sbuf->st_ex_size = AFP_INFO_SIZE;
3543 sbuf->st_ex_ino = hash_inode(sbuf, fsp->fsp_name->stream_name);
3544
3545 return 0;
3546 }
3547
3548 static int fruit_fstat_meta(vfs_handle_struct *handle,
3549 files_struct *fsp,
3550 SMB_STRUCT_STAT *sbuf,
3551 struct fio *fio)
3552 {
3553 int ret;
3554
3555 DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
3556
3557 switch (fio->config->meta) {
3558 case FRUIT_META_STREAM:
3559 ret = fruit_fstat_meta_stream(handle, fsp, sbuf);
3560 break;
3561
3562 case FRUIT_META_NETATALK:
3563 ret = fruit_fstat_meta_netatalk(handle, fsp, sbuf);
3564 break;
3565
3566 default:
3567 DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
3568 return -1;
3569 }
3570
3571 DBG_DEBUG("Path [%s] ret [%d]\n", fsp_str_dbg(fsp), ret);
3572 return ret;
3573 }
3574
3575 static int fruit_fstat_rsrc_xattr(vfs_handle_struct *handle,
3576 files_struct *fsp,
3577 SMB_STRUCT_STAT *sbuf)
3578 {
3579 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
3580 }
3581
3582 static int fruit_fstat_rsrc_stream(vfs_handle_struct *handle,
3583 files_struct *fsp,
3584 SMB_STRUCT_STAT *sbuf)
3585 {
3586 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
3587 }
3588
3589 static int fruit_fstat_rsrc_adouble(vfs_handle_struct *handle,
3590 files_struct *fsp,
3591 SMB_STRUCT_STAT *sbuf)
3592 {
3593 struct fio *fio = fruit_get_complete_fio(handle, fsp);
3594 struct adouble *ad = NULL;
3595 int ret;
3596
3597 if (fio == NULL || fio->ad_fsp == NULL) {
3598 DBG_ERR("fio/ad_fsp=NULL for [%s]\n", fsp_str_dbg(fsp));
3599 errno = EBADF;
3600 return -1;
3601 }
3602
3603 /* Populate the stat struct with info from the base file. */
3604 ret = fruit_stat_base(handle, fsp->base_fsp->fsp_name, false);
3605 if (ret == -1) {
3606 return -1;
3607 }
3608
3609 ad = ad_fget(talloc_tos(), handle, fio->ad_fsp, ADOUBLE_RSRC);
3610 if (ad == NULL) {
3611 DBG_ERR("ad_fget [%s] failed [%s]\n",
3612 fsp_str_dbg(fio->ad_fsp), strerror(errno));
3613 return -1;
3614 }
3615
3616 *sbuf = fsp->base_fsp->fsp_name->st;
3617 sbuf->st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
3618 sbuf->st_ex_ino = hash_inode(sbuf, fsp->fsp_name->stream_name);
3619
3620 TALLOC_FREE(ad);
3621 return 0;
3622 }
3623
3624 static int fruit_fstat_rsrc(vfs_handle_struct *handle, files_struct *fsp,
3625 SMB_STRUCT_STAT *sbuf, struct fio *fio)
3626 {
3627 int ret;
3628
3629 switch (fio->config->rsrc) {
3630 case FRUIT_RSRC_STREAM:
3631 ret = fruit_fstat_rsrc_stream(handle, fsp, sbuf);
3632 break;
3633
3634 case FRUIT_RSRC_ADFILE:
3635 ret = fruit_fstat_rsrc_adouble(handle, fsp, sbuf);
3636 break;
3637
3638 case FRUIT_RSRC_XATTR:
3639 ret = fruit_fstat_rsrc_xattr(handle, fsp, sbuf);
3640 break;
3641
3642 default:
3643 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
3644 return -1;
3645 }
3646
3647 return ret;
3648 }
3649
3650 static int fruit_fstat(vfs_handle_struct *handle, files_struct *fsp,
3651 SMB_STRUCT_STAT *sbuf)
3652 {
3653 struct fio *fio = fruit_get_complete_fio(handle, fsp);
3654 int rc;
3655
3656 if (fio == NULL) {
3657 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
3658 }
3659
3660 DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
3661
3662 if (fio->type == ADOUBLE_META) {
3663 rc = fruit_fstat_meta(handle, fsp, sbuf, fio);
3664 } else {
3665 rc = fruit_fstat_rsrc(handle, fsp, sbuf, fio);
3666 }
3667
3668 if (rc == 0) {
3669 sbuf->st_ex_mode &= ~S_IFMT;
3670 sbuf->st_ex_mode |= S_IFREG;
3671 sbuf->st_ex_blocks = sbuf->st_ex_size / STAT_ST_BLOCKSIZE + 1;
3672 }
3673
3674 DBG_DEBUG("Path [%s] rc [%d] size [%"PRIdMAX"]\n",
3675 fsp_str_dbg(fsp), rc, (intmax_t)sbuf->st_ex_size);
3676 return rc;
3677 }
3678
3679 static NTSTATUS delete_invalid_meta_stream(
3680 vfs_handle_struct *handle,
3681 const struct smb_filename *smb_fname,
3682 TALLOC_CTX *mem_ctx,
3683 unsigned int *pnum_streams,
3684 struct stream_struct **pstreams,
3685 off_t size)
3686 {
3687 struct smb_filename *sname = NULL;
3688 NTSTATUS status;
3689 int ret;
3690 bool ok;
3691
3692 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams, AFPINFO_STREAM);
3693 if (!ok) {
3694 return NT_STATUS_INTERNAL_ERROR;
3695 }
3696
3697 if (size == 0) {
3698 return NT_STATUS_OK;
3699 }
3700
3701 status = synthetic_pathref(talloc_tos(),
3702 handle->conn->cwd_fsp,
3703 smb_fname->base_name,
3704 AFPINFO_STREAM_NAME,
3705 NULL,
3706 smb_fname->twrp,
3707 0,
3708 &sname);
3709 if (!NT_STATUS_IS_OK(status)) {
3710 return NT_STATUS_NO_MEMORY;
3711 }
3712
3713 ret = SMB_VFS_NEXT_UNLINKAT(handle,
3714 handle->conn->cwd_fsp,
3715 sname,
3716 0);
3717 if (ret != 0) {
3718 DBG_ERR("Removing [%s] failed\n", smb_fname_str_dbg(sname));
3719 TALLOC_FREE(sname);
3720 return map_nt_error_from_unix(errno);
3721 }
3722
3723 TALLOC_FREE(sname);
3724 return NT_STATUS_OK;
3725 }
3726
3727 static NTSTATUS fruit_streaminfo_meta_stream(
3728 vfs_handle_struct *handle,
3729 struct files_struct *fsp,
3730 const struct smb_filename *smb_fname,
3731 TALLOC_CTX *mem_ctx,
3732 unsigned int *pnum_streams,
3733 struct stream_struct **pstreams)
3734 {
3735 struct stream_struct *stream = *pstreams;
3736 unsigned int num_streams = *pnum_streams;
3737 int i;
3738
3739 for (i = 0; i < num_streams; i++) {
3740 if (strequal_m(stream[i].name, AFPINFO_STREAM)) {
3741 break;
3742 }
3743 }
3744
3745 if (i == num_streams) {
3746 return NT_STATUS_OK;
3747 }
3748
3749 if (stream[i].size != AFP_INFO_SIZE) {
3750 DBG_ERR("Removing invalid AFPINFO_STREAM size [%jd] from [%s]\n",
3751 (intmax_t)stream[i].size, smb_fname_str_dbg(smb_fname));
3752
3753 return delete_invalid_meta_stream(handle,
3754 smb_fname,
3755 mem_ctx,
3756 pnum_streams,
3757 pstreams,
3758 stream[i].size);
3759 }
3760
3761
3762 return NT_STATUS_OK;
3763 }
3764
3765 static NTSTATUS fruit_streaminfo_meta_netatalk(
3766 vfs_handle_struct *handle,
3767 struct files_struct *fsp,
3768 const struct smb_filename *smb_fname,
3769 TALLOC_CTX *mem_ctx,
3770 unsigned int *pnum_streams,
3771 struct stream_struct **pstreams)
3772 {
3773 struct stream_struct *stream = *pstreams;
3774 unsigned int num_streams = *pnum_streams;
3775 struct adouble *ad = NULL;
3776 bool is_fi_empty;
3777 int i;
3778 bool ok;
3779
3780 /* Remove the Netatalk xattr from the list */
3781 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
3782 ":" NETATALK_META_XATTR ":$DATA");
3783 if (!ok) {
3784 return NT_STATUS_NO_MEMORY;
3785 }
3786
3787 /*
3788 * Check if there's a AFPINFO_STREAM from the VFS streams
3789 * backend and if yes, remove it from the list
3790 */
3791 for (i = 0; i < num_streams; i++) {
3792 if (strequal_m(stream[i].name, AFPINFO_STREAM)) {
3793 break;
3794 }
3795 }
3796
3797 if (i < num_streams) {
3798 DBG_WARNING("Unexpected AFPINFO_STREAM on [%s]\n",
3799 smb_fname_str_dbg(smb_fname));
3800
3801 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
3802 AFPINFO_STREAM);
3803 if (!ok) {
3804 return NT_STATUS_INTERNAL_ERROR;
3805 }
3806 }
3807
3808 ad = ad_get_meta_fsp(talloc_tos(), handle, smb_fname);
3809 if (ad == NULL) {
3810 return NT_STATUS_OK;
3811 }
3812
3813 is_fi_empty = ad_empty_finderinfo(ad);
3814 TALLOC_FREE(ad);
3815
3816 if (is_fi_empty) {
3817 return NT_STATUS_OK;
3818 }
3819
3820 ok = add_fruit_stream(mem_ctx, pnum_streams, pstreams,
3821 AFPINFO_STREAM_NAME, AFP_INFO_SIZE,
3822 smb_roundup(handle->conn, AFP_INFO_SIZE));
3823 if (!ok) {
3824 return NT_STATUS_NO_MEMORY;
3825 }
3826
3827 return NT_STATUS_OK;
3828 }
3829
3830 static NTSTATUS fruit_streaminfo_meta(vfs_handle_struct *handle,
3831 struct files_struct *fsp,
3832 const struct smb_filename *smb_fname,
3833 TALLOC_CTX *mem_ctx,
3834 unsigned int *pnum_streams,
3835 struct stream_struct **pstreams)
3836 {
3837 struct fruit_config_data *config = NULL;
3838 NTSTATUS status;
3839
3840 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
3841 return NT_STATUS_INTERNAL_ERROR);
3842
3843 switch (config->meta) {
3844 case FRUIT_META_NETATALK:
3845 status = fruit_streaminfo_meta_netatalk(handle, fsp, smb_fname,
3846 mem_ctx, pnum_streams,
3847 pstreams);
3848 break;
3849
3850 case FRUIT_META_STREAM:
3851 status = fruit_streaminfo_meta_stream(handle, fsp, smb_fname,
3852 mem_ctx, pnum_streams,
3853 pstreams);
3854 break;
3855
3856 default:
3857 return NT_STATUS_INTERNAL_ERROR;
3858 }
3859
3860 return status;
3861 }
3862
3863 static NTSTATUS fruit_streaminfo_rsrc_stream(
3864 vfs_handle_struct *handle,
3865 struct files_struct *fsp,
3866 const struct smb_filename *smb_fname,
3867 TALLOC_CTX *mem_ctx,
3868 unsigned int *pnum_streams,
3869 struct stream_struct **pstreams)
3870 {
3871 bool ok;
3872
3873 ok = filter_empty_rsrc_stream(pnum_streams, pstreams);
3874 if (!ok) {
3875 DBG_ERR("Filtering resource stream failed\n");
3876 return NT_STATUS_INTERNAL_ERROR;
3877 }
3878 return NT_STATUS_OK;
3879 }
3880
3881 static NTSTATUS fruit_streaminfo_rsrc_xattr(
3882 vfs_handle_struct *handle,
3883 struct files_struct *fsp,
3884 const struct smb_filename *smb_fname,
3885 TALLOC_CTX *mem_ctx,
3886 unsigned int *pnum_streams,
3887 struct stream_struct **pstreams)
3888 {
3889 bool ok;
3890
3891 ok = filter_empty_rsrc_stream(pnum_streams, pstreams);
3892 if (!ok) {
3893 DBG_ERR("Filtering resource stream failed\n");
3894 return NT_STATUS_INTERNAL_ERROR;
3895 }
3896 return NT_STATUS_OK;
3897 }
3898
3899 static NTSTATUS fruit_streaminfo_rsrc_adouble(
3900 vfs_handle_struct *handle,
3901 struct files_struct *fsp,
3902 const struct smb_filename *smb_fname,
3903 TALLOC_CTX *mem_ctx,
3904 unsigned int *pnum_streams,
3905 struct stream_struct **pstreams)
3906 {
3907 struct stream_struct *stream = *pstreams;
3908 unsigned int num_streams = *pnum_streams;
3909 struct adouble *ad = NULL;
3910 bool ok;
3911 size_t rlen;
3912 int i;
3913
3914 /*
3915 * Check if there's a AFPRESOURCE_STREAM from the VFS streams backend
3916 * and if yes, remove it from the list
3917 */
3918 for (i = 0; i < num_streams; i++) {
3919 if (strequal_m(stream[i].name, AFPRESOURCE_STREAM)) {
3920 break;
3921 }
3922 }
3923
3924 if (i < num_streams) {
3925 DBG_WARNING("Unexpected AFPRESOURCE_STREAM on [%s]\n",
3926 smb_fname_str_dbg(smb_fname));
3927
3928 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
3929 AFPRESOURCE_STREAM);
3930 if (!ok) {
3931 return NT_STATUS_INTERNAL_ERROR;
3932 }
3933 }
3934
3935 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_RSRC);
3936 if (ad == NULL) {
3937 return NT_STATUS_OK;
3938 }
3939
3940 rlen = ad_getentrylen(ad, ADEID_RFORK);
3941 TALLOC_FREE(ad);
3942
3943 if (rlen == 0) {
3944 return NT_STATUS_OK;
3945 }
3946
3947 ok = add_fruit_stream(mem_ctx, pnum_streams, pstreams,
3948 AFPRESOURCE_STREAM_NAME, rlen,
3949 smb_roundup(handle->conn, rlen));
3950 if (!ok) {
3951 return NT_STATUS_NO_MEMORY;
3952 }
3953
3954 return NT_STATUS_OK;
3955 }
3956
3957 static NTSTATUS fruit_streaminfo_rsrc(vfs_handle_struct *handle,
3958 struct files_struct *fsp,
3959 const struct smb_filename *smb_fname,
3960 TALLOC_CTX *mem_ctx,
3961 unsigned int *pnum_streams,
3962 struct stream_struct **pstreams)
3963 {
3964 struct fruit_config_data *config = NULL;
3965 NTSTATUS status;
3966
3967 if (S_ISDIR(smb_fname->st.st_ex_mode)) {
3968 return NT_STATUS_OK;
3969 }
3970
3971 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
3972 return NT_STATUS_INTERNAL_ERROR);
3973
3974 switch (config->rsrc) {
3975 case FRUIT_RSRC_STREAM:
3976 status = fruit_streaminfo_rsrc_stream(handle, fsp, smb_fname,
3977 mem_ctx, pnum_streams,
3978 pstreams);
3979 break;
3980
3981 case FRUIT_RSRC_XATTR:
3982 status = fruit_streaminfo_rsrc_xattr(handle, fsp, smb_fname,
3983 mem_ctx, pnum_streams,
3984 pstreams);
3985 break;
3986
3987 case FRUIT_RSRC_ADFILE:
3988 status = fruit_streaminfo_rsrc_adouble(handle, fsp, smb_fname,
3989 mem_ctx, pnum_streams,
3990 pstreams);
3991 break;
3992
3993 default:
3994 return NT_STATUS_INTERNAL_ERROR;
3995 }
3996
3997 return status;
3998 }
3999
4000 static void fruit_filter_empty_streams(unsigned int *pnum_streams,
4001 struct stream_struct **pstreams)
4002 {
4003 unsigned num_streams = *pnum_streams;
4004 struct stream_struct *streams = *pstreams;
4005 unsigned i = 0;
4006
4007 if (!global_fruit_config.nego_aapl) {
4008 return;
4009 }
4010
4011 while (i < num_streams) {
4012 struct smb_filename smb_fname = (struct smb_filename) {
4013 .stream_name = streams[i].name,
4014 };
4015
4016 if (is_ntfs_default_stream_smb_fname(&smb_fname)
4017 || streams[i].size > 0)
4018 {
4019 i++;
4020 continue;
4021 }
4022
4023 streams[i] = streams[num_streams - 1];
4024 num_streams--;
4025 }
4026
4027 *pnum_streams = num_streams;
4028 }
4029
4030 static NTSTATUS fruit_fstreaminfo(vfs_handle_struct *handle,
4031 struct files_struct *fsp,
4032 TALLOC_CTX *mem_ctx,
4033 unsigned int *pnum_streams,
4034 struct stream_struct **pstreams)
4035 {
4036 struct fruit_config_data *config = NULL;
4037 const struct smb_filename *smb_fname = NULL;
4038 NTSTATUS status;
4039
4040 smb_fname = fsp->fsp_name;
4041
4042 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
4043 return NT_STATUS_UNSUCCESSFUL);
4044
4045 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
4046
4047 status = SMB_VFS_NEXT_FSTREAMINFO(handle, fsp, mem_ctx,
4048 pnum_streams, pstreams);
4049 if (!NT_STATUS_IS_OK(status)) {
4050 return status;
4051 }
4052
4053 fruit_filter_empty_streams(pnum_streams, pstreams);
4054
4055 status = fruit_streaminfo_meta(handle, fsp, smb_fname,
4056 mem_ctx, pnum_streams, pstreams);
4057 if (!NT_STATUS_IS_OK(status)) {
4058 return status;
4059 }
4060
4061 status = fruit_streaminfo_rsrc(handle, fsp, smb_fname,
4062 mem_ctx, pnum_streams, pstreams);
4063 if (!NT_STATUS_IS_OK(status)) {
4064 return status;
4065 }
4066
4067 return NT_STATUS_OK;
4068 }
4069
4070 static int fruit_fntimes(vfs_handle_struct *handle,
4071 files_struct *fsp,
4072 struct smb_file_time *ft)
4073 {
4074 int rc = 0;
4075 struct adouble *ad = NULL;
4076 struct fruit_config_data *config = NULL;
4077
4078 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
4079 return -1);
4080
4081 if ((config->meta != FRUIT_META_NETATALK) ||
4082 is_omit_timespec(&ft->create_time))
4083 {
4084 return SMB_VFS_NEXT_FNTIMES(handle, fsp, ft);
4085 }
4086
4087 DBG_DEBUG("set btime for %s to %s\n", fsp_str_dbg(fsp),
4088 time_to_asc(convert_timespec_to_time_t(ft->create_time)));
4089
4090 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_META);
4091 if (ad == NULL) {
4092 goto exit;
4093 }
4094
4095 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX,
4096 convert_time_t_to_uint32_t(ft->create_time.tv_sec));
4097
4098 rc = ad_fset(handle, ad, fsp);
4099
4100 exit:
4101
4102 TALLOC_FREE(ad);
4103 if (rc != 0) {
4104 DBG_WARNING("%s\n", fsp_str_dbg(fsp));
4105 return -1;
4106 }
4107 return SMB_VFS_NEXT_FNTIMES(handle, fsp, ft);
4108 }
4109
4110 static int fruit_fallocate(struct vfs_handle_struct *handle,
4111 struct files_struct *fsp,
4112 uint32_t mode,
4113 off_t offset,
4114 off_t len)
4115 {
4116 struct fio *fio = fruit_get_complete_fio(handle, fsp);
4117
4118 if (fio == NULL) {
4119 return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
4120 }
4121
4122 /* Let the pwrite code path handle it. */
4123 errno = ENOSYS;
4124 return -1;
4125 }
4126
4127 static int fruit_ftruncate_rsrc_xattr(struct vfs_handle_struct *handle,
4128 struct files_struct *fsp,
4129 off_t offset)
4130 {
4131 #ifdef HAVE_ATTROPEN
4132 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
4133 #endif
4134 return 0;
4135 }
4136
4137 static int fruit_ftruncate_rsrc_adouble(struct vfs_handle_struct *handle,
4138 struct files_struct *fsp,
4139 off_t offset)
4140 {
4141 struct fio *fio = fruit_get_complete_fio(handle, fsp);
4142 int rc;
4143 struct adouble *ad = NULL;
4144 off_t ad_off;
4145
4146 if (fio == NULL || fio->ad_fsp == NULL) {
4147 DBG_ERR("fio/ad_fsp=NULL for [%s]\n", fsp_str_dbg(fsp));
4148 errno = EBADF;
4149 return -1;
4150 }
4151
4152 ad = ad_fget(talloc_tos(), handle, fio->ad_fsp, ADOUBLE_RSRC);
4153 if (ad == NULL) {
4154 DBG_ERR("ad_fget [%s] failed [%s]\n",
4155 fsp_str_dbg(fio->ad_fsp), strerror(errno));
4156 return -1;
4157 }
4158
4159 ad_off = ad_getentryoff(ad, ADEID_RFORK);
4160
4161 rc = SMB_VFS_NEXT_FTRUNCATE(handle, fio->ad_fsp, offset + ad_off);
4162 if (rc != 0) {
4163 TALLOC_FREE(ad);
4164 return -1;
4165 }
4166
4167 ad_setentrylen(ad, ADEID_RFORK, offset);
4168
4169 rc = ad_fset(handle, ad, fio->ad_fsp);
4170 if (rc != 0) {
4171 DBG_ERR("ad_fset [%s] failed [%s]\n",
4172 fsp_str_dbg(fio->ad_fsp), strerror(errno));
4173 TALLOC_FREE(ad);
4174 return -1;
4175 }
4176
4177 TALLOC_FREE(ad);
4178 return 0;
4179 }
4180
4181 static int fruit_ftruncate_rsrc_stream(struct vfs_handle_struct *handle,
4182 struct files_struct *fsp,
4183 off_t offset)
4184 {
4185 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
4186 }
4187
4188 static int fruit_ftruncate_rsrc(struct vfs_handle_struct *handle,
4189 struct files_struct *fsp,
4190 off_t offset)
4191 {
4192 struct fio *fio = fruit_get_complete_fio(handle, fsp);
4193 int ret;
4194
4195 if (fio == NULL) {
4196 DBG_ERR("Failed to fetch fsp extension");
4197 return -1;
4198 }
4199
4200 switch (fio->config->rsrc) {
4201 case FRUIT_RSRC_XATTR:
4202 ret = fruit_ftruncate_rsrc_xattr(handle, fsp, offset);
4203 break;
4204
4205 case FRUIT_RSRC_ADFILE:
4206 ret = fruit_ftruncate_rsrc_adouble(handle, fsp, offset);
4207 break;
4208
4209 case FRUIT_RSRC_STREAM:
4210 ret = fruit_ftruncate_rsrc_stream(handle, fsp, offset);
4211 break;
4212
4213 default:
4214 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
4215 return -1;
4216 }
4217
4218
4219 return ret;
4220 }
4221
4222 static int fruit_ftruncate_meta(struct vfs_handle_struct *handle,
4223 struct files_struct *fsp,
4224 off_t offset)
4225 {
4226 if (offset > 60) {
4227 DBG_WARNING("ftruncate %s to %jd",
4228 fsp_str_dbg(fsp), (intmax_t)offset);
4229 /* OS X returns NT_STATUS_ALLOTTED_SPACE_EXCEEDED */
4230 errno = EOVERFLOW;
4231 return -1;
4232 }
4233
4234 /* OS X returns success but does nothing */
4235 DBG_INFO("ignoring ftruncate %s to %jd\n",
4236 fsp_str_dbg(fsp), (intmax_t)offset);
4237 return 0;
4238 }
4239
4240 static int fruit_ftruncate(struct vfs_handle_struct *handle,
4241 struct files_struct *fsp,
4242 off_t offset)
4243 {
4244 struct fio *fio = fruit_get_complete_fio(handle, fsp);
4245 int ret;
4246
4247 DBG_DEBUG("Path [%s] offset [%"PRIdMAX"]\n", fsp_str_dbg(fsp),
4248 (intmax_t)offset);
4249
4250 if (fio == NULL) {
4251 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
4252 }
4253
4254 if (fio->type == ADOUBLE_META) {
4255 ret = fruit_ftruncate_meta(handle, fsp, offset);
4256 } else {
4257 ret = fruit_ftruncate_rsrc(handle, fsp, offset);
4258 }
4259
4260 DBG_DEBUG("Path [%s] result [%d]\n", fsp_str_dbg(fsp), ret);
4261 return ret;
4262 }
4263
4264 static NTSTATUS fruit_create_file(vfs_handle_struct *handle,
4265 struct smb_request *req,
4266 struct files_struct *dirfsp,
4267 struct smb_filename *smb_fname,
4268 uint32_t access_mask,
4269 uint32_t share_access,
4270 uint32_t create_disposition,
4271 uint32_t create_options,
4272 uint32_t file_attributes,
4273 uint32_t oplock_request,
4274 const struct smb2_lease *lease,
4275 uint64_t allocation_size,
4276 uint32_t private_flags,
4277 struct security_descriptor *sd,
4278 struct ea_list *ea_list,
4279 files_struct **result,
4280 int *pinfo,
4281 const struct smb2_create_blobs *in_context_blobs,
4282 struct smb2_create_blobs *out_context_blobs)
4283 {
4284 NTSTATUS status;
4285 struct fruit_config_data *config = NULL;
4286 files_struct *fsp = NULL;
4287 bool internal_open = (oplock_request & INTERNAL_OPEN_ONLY);
4288 int ret;
4289
4290 status = check_aapl(handle, req, in_context_blobs, out_context_blobs);
4291 if (!NT_STATUS_IS_OK(status)) {
4292 goto fail;
4293 }
4294
4295 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
4296 return NT_STATUS_UNSUCCESSFUL);
4297
4298 if (is_apple_stream(smb_fname->stream_name) &&
4299 !internal_open &&
4300 config->convert_adouble)
4301 {
4302 uint32_t conv_flags = 0;
4303
4304 if (config->wipe_intentionally_left_blank_rfork) {
4305 conv_flags |= AD_CONV_WIPE_BLANK;
4306 }
4307 if (config->delete_empty_adfiles) {
4308 conv_flags |= AD_CONV_DELETE;
4309 }
4310
4311 ret = ad_convert(handle,
4312 smb_fname,
4313 macos_string_replace_map,
4314 conv_flags);
4315 if (ret != 0) {
4316 DBG_ERR("ad_convert(\"%s\") failed\n",
4317 smb_fname_str_dbg(smb_fname));
4318 }
4319 }
4320
4321 status = SMB_VFS_NEXT_CREATE_FILE(
4322 handle, req, dirfsp, smb_fname,
4323 access_mask, share_access,
4324 create_disposition, create_options,
4325 file_attributes, oplock_request,
4326 lease,
4327 allocation_size, private_flags,
4328 sd, ea_list, result,
4329 pinfo, in_context_blobs, out_context_blobs);
4330 if (!NT_STATUS_IS_OK(status)) {
4331 return status;
4332 }
4333
4334 fsp = *result;
4335
4336 if (global_fruit_config.nego_aapl) {
4337 if (config->posix_rename && fsp->fsp_flags.is_directory) {
4338 /*
4339 * Enable POSIX directory rename behaviour
4340 */
4341 fsp->posix_flags |= FSP_POSIX_FLAGS_RENAME;
4342 }
4343 }
4344
4345 /*
4346 * If this is a plain open for existing files, opening an 0
4347 * byte size resource fork MUST fail with
4348 * NT_STATUS_OBJECT_NAME_NOT_FOUND.
4349 *
4350 * Cf the vfs_fruit torture tests in test_rfork_create().
4351 */
4352 if (global_fruit_config.nego_aapl &&
4353 create_disposition == FILE_OPEN &&
4354 smb_fname->st.st_ex_size == 0 &&
4355 is_named_stream(smb_fname))
4356 {
4357 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
4358 goto fail;
4359 }
4360
4361 if (is_named_stream(smb_fname) || fsp->fsp_flags.is_directory) {
4362 return status;
4363 }
4364
4365 if ((config->locking == FRUIT_LOCKING_NETATALK) &&
4366 (fsp->op != NULL) &&
4367 !fsp->fsp_flags.is_pathref)
4368 {
4369 status = fruit_check_access(
4370 handle, *result,
4371 access_mask,
4372 share_access);
4373 if (!NT_STATUS_IS_OK(status)) {
4374 goto fail;
4375 }
4376 }
4377
4378 return status;
4379
4380 fail:
4381 DEBUG(10, ("fruit_create_file: %s\n", nt_errstr(status)));
4382
4383 if (fsp) {
4384 close_file_free(req, &fsp, ERROR_CLOSE);
4385 *result = NULL;
4386 }
4387
4388 return status;
4389 }
4390
4391 static NTSTATUS fruit_freaddir_attr(struct vfs_handle_struct *handle,
4392 struct files_struct *fsp,
4393 TALLOC_CTX *mem_ctx,
4394 struct readdir_attr_data **pattr_data)
4395 {
4396 struct fruit_config_data *config = NULL;
4397 struct readdir_attr_data *attr_data;
4398 uint32_t conv_flags = 0;
4399 NTSTATUS status;
4400 int ret;
4401
4402 SMB_VFS_HANDLE_GET_DATA(handle, config,
4403 struct fruit_config_data,
4404 return NT_STATUS_UNSUCCESSFUL);
4405
4406 if (!global_fruit_config.nego_aapl) {
4407 return SMB_VFS_NEXT_FREADDIR_ATTR(handle,
4408 fsp,
4409 mem_ctx,
4410 pattr_data);
4411 }
4412
4413 DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
4414
4415 if (config->convert_adouble) {
4416 if (config->wipe_intentionally_left_blank_rfork) {
4417 conv_flags |= AD_CONV_WIPE_BLANK;
4418 }
4419 if (config->delete_empty_adfiles) {
4420 conv_flags |= AD_CONV_DELETE;
4421 }
4422
4423 ret = ad_convert(handle,
4424 fsp->fsp_name,
4425 macos_string_replace_map,
4426 conv_flags);
4427 if (ret != 0) {
4428 DBG_ERR("ad_convert(\"%s\") failed\n",
4429 fsp_str_dbg(fsp));
4430 }
4431 }
4432
4433 *pattr_data = talloc_zero(mem_ctx, struct readdir_attr_data);
4434 if (*pattr_data == NULL) {
4435 return NT_STATUS_NO_MEMORY;
4436 }
4437 attr_data = *pattr_data;
4438 attr_data->type = RDATTR_AAPL;
4439
4440 /*
4441 * Mac metadata: compressed FinderInfo, resource fork length
4442 * and creation date
4443 */
4444 status = readdir_attr_macmeta(handle, fsp->fsp_name, attr_data);
4445 if (!NT_STATUS_IS_OK(status)) {
4446 /*
4447 * Error handling is tricky: if we return failure from
4448 * this function, the corresponding directory entry
4449 * will to be passed to the client, so we really just
4450 * want to error out on fatal errors.
4451 */
4452 if (!NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
4453 goto fail;
4454 }
4455 }
4456
4457 /*
4458 * UNIX mode
4459 */
4460 if (config->unix_info_enabled) {
4461 attr_data->attr_data.aapl.unix_mode =
4462 fsp->fsp_name->st.st_ex_mode;
4463 }
4464
4465 /*
4466 * max_access
4467 */
4468 if (!config->readdir_attr_max_access) {
4469 attr_data->attr_data.aapl.max_access = FILE_GENERIC_ALL;
4470 } else {
4471 status = smbd_calculate_access_mask_fsp(fsp->conn->cwd_fsp,
4472 fsp,
4473 false,
4474 SEC_FLAG_MAXIMUM_ALLOWED,
4475 &attr_data->attr_data.aapl.max_access);
4476 if (!NT_STATUS_IS_OK(status)) {
4477 goto fail;
4478 }
4479 }
4480
4481 return NT_STATUS_OK;
4482
4483 fail:
4484 DBG_WARNING("Path [%s], error: %s\n", fsp_str_dbg(fsp),
4485 nt_errstr(status));
4486 TALLOC_FREE(*pattr_data);
4487 return status;
4488 }
4489
4490 static NTSTATUS fruit_fget_nt_acl(vfs_handle_struct *handle,
4491 files_struct *fsp,
4492 uint32_t security_info,
4493 TALLOC_CTX *mem_ctx,
4494 struct security_descriptor **ppdesc)
4495 {
4496 NTSTATUS status;
4497 struct security_ace ace;
4498 struct dom_sid sid;
4499 struct fruit_config_data *config;
4500
4501 SMB_VFS_HANDLE_GET_DATA(handle, config,
4502 struct fruit_config_data,
4503 return NT_STATUS_UNSUCCESSFUL);
4504
4505 status = SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info,
4506 mem_ctx, ppdesc);
4507 if (!NT_STATUS_IS_OK(status)) {
4508 return status;
4509 }
4510
4511 /*
4512 * Add MS NFS style ACEs with uid, gid and mode
4513 */
4514 if (!global_fruit_config.nego_aapl) {
4515 return NT_STATUS_OK;
4516 }
4517 if (!config->unix_info_enabled) {
4518 return NT_STATUS_OK;
4519 }
4520
4521 /* First remove any existing ACE's with NFS style mode/uid/gid SIDs. */
4522 status = remove_virtual_nfs_aces(*ppdesc);
4523 if (!NT_STATUS_IS_OK(status)) {
4524 DBG_WARNING("failed to remove MS NFS style ACEs\n");
4525 return status;
4526 }
4527
4528 /* MS NFS style mode */
4529 sid_compose(&sid, &global_sid_Unix_NFS_Mode, fsp->fsp_name->st.st_ex_mode);
4530 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
4531 status = security_descriptor_dacl_add(*ppdesc, &ace);
4532 if (!NT_STATUS_IS_OK(status)) {
4533 DEBUG(1,("failed to add MS NFS style ACE\n"));
4534 return status;
4535 }
4536
4537 /* MS NFS style uid */
4538 sid_compose(&sid, &global_sid_Unix_NFS_Users, fsp->fsp_name->st.st_ex_uid);
4539 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
4540 status = security_descriptor_dacl_add(*ppdesc, &ace);
4541 if (!NT_STATUS_IS_OK(status)) {
4542 DEBUG(1,("failed to add MS NFS style ACE\n"));
4543 return status;
4544 }
4545
4546 /* MS NFS style gid */
4547 sid_compose(&sid, &global_sid_Unix_NFS_Groups, fsp->fsp_name->st.st_ex_gid);
4548 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
4549 status = security_descriptor_dacl_add(*ppdesc, &ace);
4550 if (!NT_STATUS_IS_OK(status)) {
4551 DEBUG(1,("failed to add MS NFS style ACE\n"));
4552 return status;
4553 }
4554
4555 return NT_STATUS_OK;
4556 }
4557
4558 static NTSTATUS fruit_fset_nt_acl(vfs_handle_struct *handle,
4559 files_struct *fsp,
4560 uint32_t security_info_sent,
4561 const struct security_descriptor *orig_psd)
4562 {
4563 NTSTATUS status;
4564 bool do_chmod;
4565 mode_t ms_nfs_mode = 0;
4566 int result;
4567 struct security_descriptor *psd = NULL;
4568 uint32_t orig_num_aces = 0;
4569
4570 if (orig_psd->dacl != NULL) {
4571 orig_num_aces = orig_psd->dacl->num_aces;
4572 }
4573
4574 psd = security_descriptor_copy(talloc_tos(), orig_psd);
4575 if (psd == NULL) {
4576 return NT_STATUS_NO_MEMORY;
4577 }
4578
4579 DBG_DEBUG("fruit_fset_nt_acl: %s\n", fsp_str_dbg(fsp));
4580
4581 status = check_ms_nfs(handle, fsp, psd, &ms_nfs_mode, &do_chmod);
4582 if (!NT_STATUS_IS_OK(status)) {
4583 DEBUG(1, ("fruit_fset_nt_acl: check_ms_nfs failed%s\n", fsp_str_dbg(fsp)));
4584 TALLOC_FREE(psd);
4585 return status;
4586 }
4587
4588 /*
4589 * If only ms_nfs ACE entries were sent, ensure we set the DACL
4590 * sent/present flags correctly now we've removed them.
4591 */
4592
4593 if (orig_num_aces != 0) {
4594 /*
4595 * Are there any ACE's left ?
4596 */
4597 if (psd->dacl->num_aces == 0) {
4598 /* No - clear the DACL sent/present flags. */
4599 security_info_sent &= ~SECINFO_DACL;
4600 psd->type &= ~SEC_DESC_DACL_PRESENT;
4601 }
4602 }
4603
4604 status = SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
4605 if (!NT_STATUS_IS_OK(status)) {
4606 DEBUG(1, ("fruit_fset_nt_acl: SMB_VFS_NEXT_FSET_NT_ACL failed%s\n", fsp_str_dbg(fsp)));
4607 TALLOC_FREE(psd);
4608 return status;
4609 }
4610
4611 if (do_chmod) {
4612 result = SMB_VFS_FCHMOD(fsp, ms_nfs_mode);
4613 if (result != 0) {
4614 DBG_WARNING("%s, result: %d, %04o error %s\n",
4615 fsp_str_dbg(fsp),
4616 result,
4617 (unsigned)ms_nfs_mode,
4618 strerror(errno));
4619 status = map_nt_error_from_unix(errno);
4620 TALLOC_FREE(psd);
4621 return status;
4622 }
4623 }
4624
4625 TALLOC_FREE(psd);
4626 return NT_STATUS_OK;
4627 }
4628
4629 static struct vfs_offload_ctx *fruit_offload_ctx;
4630
4631 struct fruit_offload_read_state {
4632 struct vfs_handle_struct *handle;
4633 struct tevent_context *ev;
4634 files_struct *fsp;
4635 uint32_t fsctl;
4636 uint32_t flags;
4637 uint64_t xferlen;
4638 DATA_BLOB token;
4639 };
4640
4641 static void fruit_offload_read_done(struct tevent_req *subreq);
4642
4643 static struct tevent_req *fruit_offload_read_send(
4644 TALLOC_CTX *mem_ctx,
4645 struct tevent_context *ev,
4646 struct vfs_handle_struct *handle,
4647 files_struct *fsp,
4648 uint32_t fsctl,
4649 uint32_t ttl,
4650 off_t offset,
4651 size_t to_copy)
4652 {
4653 struct tevent_req *req = NULL;
4654 struct tevent_req *subreq = NULL;
4655 struct fruit_offload_read_state *state = NULL;
4656
4657 req = tevent_req_create(mem_ctx, &state,
4658 struct fruit_offload_read_state);
4659 if (req == NULL) {
4660 return NULL;
4661 }
4662 *state = (struct fruit_offload_read_state) {
4663 .handle = handle,
4664 .ev = ev,
4665 .fsp = fsp,
4666 .fsctl = fsctl,
4667 };
4668
4669 subreq = SMB_VFS_NEXT_OFFLOAD_READ_SEND(mem_ctx, ev, handle, fsp,
4670 fsctl, ttl, offset, to_copy);
4671 if (tevent_req_nomem(subreq, req)) {
4672 return tevent_req_post(req, ev);
4673 }
4674 tevent_req_set_callback(subreq, fruit_offload_read_done, req);
4675 return req;
4676 }
4677
4678 static void fruit_offload_read_done(struct tevent_req *subreq)
4679 {
4680 struct tevent_req *req = tevent_req_callback_data(
4681 subreq, struct tevent_req);
4682 struct fruit_offload_read_state *state = tevent_req_data(
4683 req, struct fruit_offload_read_state);
4684 NTSTATUS status;
4685
4686 status = SMB_VFS_NEXT_OFFLOAD_READ_RECV(subreq,
4687 state->handle,
4688 state,
4689 &state->flags,
4690 &state->xferlen,
4691 &state->token);
4692 TALLOC_FREE(subreq);
4693 if (tevent_req_nterror(req, status)) {
4694 return;
4695 }
4696
4697 if (state->fsctl != FSCTL_SRV_REQUEST_RESUME_KEY) {
4698 tevent_req_done(req);
4699 return;
4700 }
4701
4702 status = vfs_offload_token_ctx_init(state->fsp->conn->sconn->client,
4703 &fruit_offload_ctx);
4704 if (tevent_req_nterror(req, status)) {
4705 return;
4706 }
4707
4708 status = vfs_offload_token_db_store_fsp(fruit_offload_ctx,
4709 state->fsp,
4710 &state->token);
4711 if (tevent_req_nterror(req, status)) {
4712 return;
4713 }
4714
4715 tevent_req_done(req);
4716 return;
4717 }
4718
4719 static NTSTATUS fruit_offload_read_recv(struct tevent_req *req,
4720 struct vfs_handle_struct *handle,
4721 TALLOC_CTX *mem_ctx,
4722 uint32_t *flags,
4723 uint64_t *xferlen,
4724 DATA_BLOB *token)
4725 {
4726 struct fruit_offload_read_state *state = tevent_req_data(
4727 req, struct fruit_offload_read_state);
4728 NTSTATUS status;
4729
4730 if (tevent_req_is_nterror(req, &status)) {
4731 tevent_req_received(req);
4732 return status;
4733 }
4734
4735 *flags = state->flags;
4736 *xferlen = state->xferlen;
4737 token->length = state->token.length;
4738 token->data = talloc_move(mem_ctx, &state->token.data);
4739
4740 tevent_req_received(req);
4741 return NT_STATUS_OK;
4742 }
4743
4744 struct fruit_offload_write_state {
4745 struct vfs_handle_struct *handle;
4746 off_t copied;
4747 struct files_struct *src_fsp;
4748 struct files_struct *dst_fsp;
4749 bool is_copyfile;
4750 };
4751
4752 static void fruit_offload_write_done(struct tevent_req *subreq);
4753 static struct tevent_req *fruit_offload_write_send(struct vfs_handle_struct *handle,
4754 TALLOC_CTX *mem_ctx,
4755 struct tevent_context *ev,
4756 uint32_t fsctl,
4757 DATA_BLOB *token,
4758 off_t transfer_offset,
4759 struct files_struct *dest_fsp,
4760 off_t dest_off,
4761 off_t num)
4762 {
4763 struct tevent_req *req, *subreq;
4764 struct fruit_offload_write_state *state;
4765 NTSTATUS status;
4766 struct fruit_config_data *config;
4767 off_t src_off = transfer_offset;
4768 files_struct *src_fsp = NULL;
4769 off_t to_copy = num;
4770 bool copyfile_enabled = false;
4771
4772 DEBUG(10,("soff: %ju, doff: %ju, len: %ju\n",
4773 (uintmax_t)src_off, (uintmax_t)dest_off, (uintmax_t)num));
4774
4775 SMB_VFS_HANDLE_GET_DATA(handle, config,
4776 struct fruit_config_data,
4777 return NULL);
4778
4779 req = tevent_req_create(mem_ctx, &state,
4780 struct fruit_offload_write_state);
4781 if (req == NULL) {
4782 return NULL;
4783 }
4784 state->handle = handle;
4785 state->dst_fsp = dest_fsp;
4786
4787 switch (fsctl) {
4788 case FSCTL_SRV_COPYCHUNK:
4789 case FSCTL_SRV_COPYCHUNK_WRITE:
4790 copyfile_enabled = config->copyfile_enabled;
4791 break;
4792 default:
4793 break;
4794 }
4795
4796 /*
4797 * Check if this a OS X copyfile style copychunk request with
4798 * a requested chunk count of 0 that was translated to a
4799 * offload_write_send VFS call overloading the parameters src_off
4800 * = dest_off = num = 0.
4801 */
4802 if (copyfile_enabled && num == 0 && src_off == 0 && dest_off == 0) {
4803 status = vfs_offload_token_db_fetch_fsp(
4804 fruit_offload_ctx, token, &src_fsp);
4805 if (tevent_req_nterror(req, status)) {
4806 return tevent_req_post(req, ev);
4807 }
4808 state->src_fsp = src_fsp;
4809
4810 status = vfs_stat_fsp(src_fsp);
4811 if (tevent_req_nterror(req, status)) {
4812 return tevent_req_post(req, ev);
4813 }
4814
4815 to_copy = src_fsp->fsp_name->st.st_ex_size;
4816 state->is_copyfile = true;
4817 }
4818
4819 subreq = SMB_VFS_NEXT_OFFLOAD_WRITE_SEND(handle,
4820 mem_ctx,
4821 ev,
4822 fsctl,
4823 token,
4824 transfer_offset,
4825 dest_fsp,
4826 dest_off,
4827 to_copy);
4828 if (tevent_req_nomem(subreq, req)) {
4829 return tevent_req_post(req, ev);
4830 }
4831
4832 tevent_req_set_callback(subreq, fruit_offload_write_done, req);
4833 return req;
4834 }
4835
4836 static void fruit_offload_write_done(struct tevent_req *subreq)
4837 {
4838 struct tevent_req *req = tevent_req_callback_data(
4839 subreq, struct tevent_req);
4840 struct fruit_offload_write_state *state = tevent_req_data(
4841 req, struct fruit_offload_write_state);
4842 NTSTATUS status;
4843 unsigned int num_streams = 0;
4844 struct stream_struct *streams = NULL;
4845 unsigned int i;
4846 struct smb_filename *src_fname_tmp = NULL;
4847 struct smb_filename *dst_fname_tmp = NULL;
4848
4849 status = SMB_VFS_NEXT_OFFLOAD_WRITE_RECV(state->handle,
4850 subreq,
4851 &state->copied);
4852 TALLOC_FREE(subreq);
4853 if (tevent_req_nterror(req, status)) {
4854 return;
4855 }
4856
4857 if (!state->is_copyfile) {
4858 tevent_req_done(req);
4859 return;
4860 }
4861
4862 /*
4863 * Now copy all remaining streams. We know the share supports
4864 * streams, because we're in vfs_fruit. We don't do this async
4865 * because streams are few and small.
4866 */
4867 status = vfs_fstreaminfo(state->src_fsp,
4868 req, &num_streams, &streams);
4869 if (tevent_req_nterror(req, status)) {
4870 return;
4871 }
4872
4873 if (num_streams == 1) {
4874 /* There is always one stream, ::$DATA. */
4875 tevent_req_done(req);
4876 return;
4877 }
4878
4879 for (i = 0; i < num_streams; i++) {
4880 DEBUG(10, ("%s: stream: '%s'/%zu\n",
4881 __func__, streams[i].name, (size_t)streams[i].size));
4882
4883 src_fname_tmp = synthetic_smb_fname(
4884 req,
4885 state->src_fsp->fsp_name->base_name,
4886 streams[i].name,
4887 NULL,
4888 state->src_fsp->fsp_name->twrp,
4889 state->src_fsp->fsp_name->flags);
4890 if (tevent_req_nomem(src_fname_tmp, req)) {
4891 return;
4892 }
4893
4894 if (is_ntfs_default_stream_smb_fname(src_fname_tmp)) {
4895 TALLOC_FREE(src_fname_tmp);
4896 continue;
4897 }
4898
4899 dst_fname_tmp = synthetic_smb_fname(
4900 req,
4901 state->dst_fsp->fsp_name->base_name,
4902 streams[i].name,
4903 NULL,
4904 state->dst_fsp->fsp_name->twrp,
4905 state->dst_fsp->fsp_name->flags);
4906 if (tevent_req_nomem(dst_fname_tmp, req)) {
4907 TALLOC_FREE(src_fname_tmp);
4908 return;
4909 }
4910
4911 status = copy_file(req,
4912 state->handle->conn,
4913 src_fname_tmp,
4914 dst_fname_tmp,
4915 FILE_CREATE);
4916 if (!NT_STATUS_IS_OK(status)) {
4917 DEBUG(1, ("%s: copy %s to %s failed: %s\n", __func__,
4918 smb_fname_str_dbg(src_fname_tmp),
4919 smb_fname_str_dbg(dst_fname_tmp),
4920 nt_errstr(status)));
4921 TALLOC_FREE(src_fname_tmp);
4922 TALLOC_FREE(dst_fname_tmp);
4923 tevent_req_nterror(req, status);
4924 return;
4925 }
4926
4927 TALLOC_FREE(src_fname_tmp);
4928 TALLOC_FREE(dst_fname_tmp);
4929 }
4930
4931 TALLOC_FREE(streams);
4932 TALLOC_FREE(src_fname_tmp);
4933 TALLOC_FREE(dst_fname_tmp);
4934 tevent_req_done(req);
4935 }
4936
4937 static NTSTATUS fruit_offload_write_recv(struct vfs_handle_struct *handle,
4938 struct tevent_req *req,
4939 off_t *copied)
4940 {
4941 struct fruit_offload_write_state *state = tevent_req_data(
4942 req, struct fruit_offload_write_state);
4943 NTSTATUS status;
4944
4945 if (tevent_req_is_nterror(req, &status)) {
4946 DEBUG(1, ("server side copy chunk failed: %s\n",
4947 nt_errstr(status)));
4948 *copied = 0;
4949 tevent_req_received(req);
4950 return status;
4951 }
4952
4953 *copied = state->copied;
4954 tevent_req_received(req);
4955
4956 return NT_STATUS_OK;
4957 }
4958
4959 static char *fruit_get_bandsize_line(char **lines, int numlines)
4960 {
4961 static regex_t re;
4962 static bool re_initialized = false;
4963 int i;
4964 int ret;
4965
4966 if (!re_initialized) {
4967 ret = regcomp(&re, "^[[:blank:]]*<key>band-size</key>$", 0);
4968 if (ret != 0) {
4969 return NULL;
4970 }
4971 re_initialized = true;
4972 }
4973
4974 for (i = 0; i < numlines; i++) {
4975 regmatch_t matches[1];
4976
4977 ret = regexec(&re, lines[i], 1, matches, 0);
4978 if (ret == 0) {
4979 /*
4980 * Check if the match was on the last line, sa we want
4981 * the subsequent line.
4982 */
4983 if (i + 1 == numlines) {
4984 return NULL;
4985 }
4986 return lines[i + 1];
4987 }
4988 if (ret != REG_NOMATCH) {
4989 return NULL;
4990 }
4991 }
4992
4993 return NULL;
4994 }
4995
4996 static bool fruit_get_bandsize_from_line(char *line, size_t *_band_size)
4997 {
4998 static regex_t re;
4999 static bool re_initialized = false;
5000 regmatch_t matches[2];
5001 uint64_t band_size;
5002 int ret;
5003 bool ok;
5004
5005 if (!re_initialized) {
5006 ret = regcomp(&re,
5007 "^[[:blank:]]*"
5008 "<integer>\\([[:digit:]]*\\)</integer>$",
5009 0);
5010 if (ret != 0) {
5011 return false;
5012 }
5013 re_initialized = true;
5014 }
5015
5016 ret = regexec(&re, line, 2, matches, 0);
5017 if (ret != 0) {
5018 DBG_ERR("regex failed [%s]\n", line);
5019 return false;
5020 }
5021
5022 line[matches[1].rm_eo] = '\0';
5023
5024 ok = conv_str_u64(&line[matches[1].rm_so], &band_size);
5025 if (!ok) {
5026 return false;
5027 }
5028 *_band_size = (size_t)band_size;
5029 return true;
5030 }
5031
5032 /*
5033 * This reads and parses an Info.plist from a TM sparsebundle looking for the
5034 * "band-size" key and value.
5035 */
5036 static bool fruit_get_bandsize(vfs_handle_struct *handle,
5037 const char *dir,
5038 size_t *band_size)
5039 {
5040 #define INFO_PLIST_MAX_SIZE 64*1024
5041 char *plist = NULL;
5042 struct smb_filename *smb_fname = NULL;
5043 files_struct *fsp = NULL;
5044 uint8_t *file_data = NULL;
5045 char **lines = NULL;
5046 char *band_size_line = NULL;
5047 size_t plist_file_size;
5048 ssize_t nread;
5049 int numlines;
5050 int ret;
5051 bool ok = false;
5052 NTSTATUS status;
5053
5054 plist = talloc_asprintf(talloc_tos(),
5055 "%s/%s/Info.plist",
5056 handle->conn->connectpath,
5057 dir);
5058 if (plist == NULL) {
5059 ok = false;
5060 goto out;
5061 }
5062
5063 smb_fname = synthetic_smb_fname(talloc_tos(),
5064 plist,
5065 NULL,
5066 NULL,
5067 0,
5068 0);
5069 if (smb_fname == NULL) {
5070 ok = false;
5071 goto out;
5072 }
5073
5074 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
5075 if (ret != 0) {
5076 DBG_INFO("Ignoring Sparsebundle without Info.plist [%s]\n", dir);
5077 ok = true;
5078 goto out;
5079 }
5080
5081 plist_file_size = smb_fname->st.st_ex_size;
5082
5083 if (plist_file_size > INFO_PLIST_MAX_SIZE) {
5084 DBG_INFO("%s is too large, ignoring\n", plist);
5085 ok = true;
5086 goto out;
5087 }
5088
5089 status = SMB_VFS_NEXT_CREATE_FILE(
5090 handle, /* conn */
5091 NULL, /* req */
5092 NULL, /* dirfsp */
5093 smb_fname, /* fname */
5094 FILE_GENERIC_READ, /* access_mask */
5095 FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
5096 FILE_OPEN, /* create_disposition */
5097 0, /* create_options */
5098 0, /* file_attributes */
5099 INTERNAL_OPEN_ONLY, /* oplock_request */
5100 NULL, /* lease */
5101 0, /* allocation_size */
5102 0, /* private_flags */
5103 NULL, /* sd */
5104 NULL, /* ea_list */
5105 &fsp, /* result */
5106 NULL, /* psbuf */
5107 NULL, NULL); /* create context */
5108 if (!NT_STATUS_IS_OK(status)) {
5109 DBG_INFO("Opening [%s] failed [%s]\n",
5110 smb_fname_str_dbg(smb_fname), nt_errstr(status));
5111 ok = false;
5112 goto out;
5113 }
5114
5115 file_data = talloc_zero_array(talloc_tos(),
5116 uint8_t,
5117 plist_file_size + 1);
5118 if (file_data == NULL) {
5119 ok = false;
5120 goto out;
5121 }
5122
5123 nread = SMB_VFS_NEXT_PREAD(handle, fsp, file_data, plist_file_size, 0);
5124 if (nread != plist_file_size) {
5125 DBG_ERR("Short read on [%s]: %zu/%zd\n",
5126 fsp_str_dbg(fsp), nread, plist_file_size);
5127 ok = false;
5128 goto out;
5129
5130 }
5131
5132 status = close_file_free(NULL, &fsp, NORMAL_CLOSE);
5133 if (!NT_STATUS_IS_OK(status)) {
5134 DBG_ERR("close_file failed: %s\n", nt_errstr(status));
5135 ok = false;
5136 goto out;
5137 }
5138
5139 lines = file_lines_parse((char *)file_data,
5140 plist_file_size,
5141 &numlines,
5142 talloc_tos());
5143 if (lines == NULL) {
5144 ok = false;
5145 goto out;
5146 }
5147
5148 band_size_line = fruit_get_bandsize_line(lines, numlines);
5149 if (band_size_line == NULL) {
5150 DBG_ERR("Didn't find band-size key in [%s]\n",
5151 smb_fname_str_dbg(smb_fname));
5152 ok = false;
5153 goto out;
5154 }
5155
5156 ok = fruit_get_bandsize_from_line(band_size_line, band_size);
5157 if (!ok) {
5158 DBG_ERR("fruit_get_bandsize_from_line failed\n");
5159 goto out;
5160 }
5161
5162 DBG_DEBUG("Parsed band-size [%zu] for [%s]\n", *band_size, plist);
5163
5164 out:
5165 if (fsp != NULL) {
5166 status = close_file_free(NULL, &fsp, NORMAL_CLOSE);
5167 if (!NT_STATUS_IS_OK(status)) {
5168 DBG_ERR("close_file failed: %s\n", nt_errstr(status));
5169 }
5170 }
5171 TALLOC_FREE(plist);
5172 TALLOC_FREE(smb_fname);
5173 TALLOC_FREE(file_data);
5174 TALLOC_FREE(lines);
5175 return ok;
5176 }
5177
5178 struct fruit_disk_free_state {
5179 off_t total_size;
5180 };
5181
5182 static bool fruit_get_num_bands(vfs_handle_struct *handle,
5183 const char *bundle,
5184 size_t *_nbands)
5185 {
5186 char *path = NULL;
5187 struct smb_filename *bands_dir = NULL;
5188 struct smb_Dir *dir_hnd = NULL;
5189 const char *dname = NULL;
5190 char *talloced = NULL;
5191 long offset = 0;
5192 size_t nbands;
5193 NTSTATUS status;
5194
5195 path = talloc_asprintf(talloc_tos(),
5196 "%s/%s/bands",
5197 handle->conn->connectpath,
5198 bundle);
5199 if (path == NULL) {
5200 return false;
5201 }
5202
5203 bands_dir = synthetic_smb_fname(talloc_tos(),
5204 path,
5205 NULL,
5206 NULL,
5207 0,
5208 0);
5209 TALLOC_FREE(path);
5210 if (bands_dir == NULL) {
5211 return false;
5212 }
5213
5214 status = OpenDir(talloc_tos(),
5215 handle->conn,
5216 bands_dir,
5217 NULL,
5218 0,
5219 &dir_hnd);
5220 if (!NT_STATUS_IS_OK(status)) {
5221 TALLOC_FREE(bands_dir);
5222 errno = map_errno_from_nt_status(status);
5223 return false;
5224 }
5225
5226 nbands = 0;
5227
5228 while ((dname = ReadDirName(dir_hnd, &offset, NULL, &talloced))
5229 != NULL)
5230 {
5231 if (ISDOT(dname) || ISDOTDOT(dname)) {
5232 continue;
5233 }
5234 nbands++;
5235 }
5236 TALLOC_FREE(dir_hnd);
5237
5238 DBG_DEBUG("%zu bands in [%s]\n", nbands, smb_fname_str_dbg(bands_dir));
5239
5240 TALLOC_FREE(bands_dir);
5241
5242 *_nbands = nbands;
5243 return true;
5244 }
5245
5246 static bool fruit_tmsize_do_dirent(vfs_handle_struct *handle,
5247 struct fruit_disk_free_state *state,
5248 const char *name)
5249 {
5250 bool ok;
5251 char *p = NULL;
5252 size_t sparsebundle_strlen = strlen("sparsebundle");
5253 size_t bandsize = 0;
5254 size_t nbands;
5255 off_t tm_size;
5256
5257 p = strstr(name, "sparsebundle");
5258 if (p == NULL) {
5259 return true;
5260 }
5261
5262 if (p[sparsebundle_strlen] != '\0') {
5263 return true;
5264 }
5265
5266 DBG_DEBUG("Processing sparsebundle [%s]\n", name);
5267
5268 ok = fruit_get_bandsize(handle, name, &bandsize);
5269 if (!ok) {
5270 /*
5271 * Beware of race conditions: this may be an uninitialized
5272 * Info.plist that a client is just creating. We don't want let
5273 * this to trigger complete failure.
5274 */
5275 DBG_ERR("Processing sparsebundle [%s] failed\n", name);
5276 return true;
5277 }
5278
5279 ok = fruit_get_num_bands(handle, name, &nbands);
5280 if (!ok) {
5281 /*
5282 * Beware of race conditions: this may be a backup sparsebundle
5283 * in an early stage lacking a bands subdirectory. We don't want
5284 * let this to trigger complete failure.
5285 */
5286 DBG_ERR("Processing sparsebundle [%s] failed\n", name);
5287 return true;
5288 }
5289
5290 /*
5291 * Arithmetic on 32-bit systems may cause overflow, depending on
5292 * size_t precision. First we check its unlikely, then we
5293 * force the precision into target off_t, then we check that
5294 * the total did not overflow either.
5295 */
5296 if (bandsize > SIZE_MAX/nbands) {
5297 DBG_ERR("tmsize potential overflow: bandsize [%zu] nbands [%zu]\n",
5298 bandsize, nbands);
5299 return false;
5300 }
5301 tm_size = (off_t)bandsize * (off_t)nbands;
5302
5303 if (state->total_size + tm_size < state->total_size) {
5304 DBG_ERR("tm total size overflow: bandsize [%zu] nbands [%zu]\n",
5305 bandsize, nbands);
5306 return false;
5307 }
5308
5309 state->total_size += tm_size;
5310
5311 DBG_DEBUG("[%s] tm_size [%jd] total_size [%jd]\n",
5312 name, (intmax_t)tm_size, (intmax_t)state->total_size);
5313
5314 return true;
5315 }
5316
5317 /**
5318 * Calculate used size of a TimeMachine volume
5319 *
5320 * This assumes that the volume is used only for TimeMachine.
5321 *
5322 * - readdir(basedir of share), then
5323 * - for every element that matches regex "^\(.*\)\.sparsebundle$" :
5324 * - parse "\1.sparsebundle/Info.plist" and read the band-size XML key
5325 * - count band files in "\1.sparsebundle/bands/"
5326 * - calculate used size of all bands: band_count * band_size
5327 **/
5328 static uint64_t fruit_disk_free(vfs_handle_struct *handle,
5329 const struct smb_filename *smb_fname,
5330 uint64_t *_bsize,
5331 uint64_t *_dfree,
5332 uint64_t *_dsize)
5333 {
5334 struct fruit_config_data *config = NULL;
5335 struct fruit_disk_free_state state = {0};
5336 struct smb_Dir *dir_hnd = NULL;
5337 const char *dname = NULL;
5338 char *talloced = NULL;
5339 long offset = 0;
5340 uint64_t dfree;
5341 uint64_t dsize;
5342 bool ok;
5343 NTSTATUS status;
5344
5345 SMB_VFS_HANDLE_GET_DATA(handle, config,
5346 struct fruit_config_data,
5347 return UINT64_MAX);
5348
5349 if (!config->time_machine ||
5350 config->time_machine_max_size == 0)
5351 {
5352 return SMB_VFS_NEXT_DISK_FREE(handle,
5353 smb_fname,
5354 _bsize,
5355 _dfree,
5356 _dsize);
5357 }
5358
5359 status = OpenDir(talloc_tos(),
5360 handle->conn,
5361 smb_fname,
5362 NULL,
5363 0,
5364 &dir_hnd);
5365 if (!NT_STATUS_IS_OK(status)) {
5366 errno = map_errno_from_nt_status(status);
5367 return UINT64_MAX;
5368 }
5369
5370 while ((dname = ReadDirName(dir_hnd, &offset, NULL, &talloced))
5371 != NULL)
5372 {
5373 ok = fruit_tmsize_do_dirent(handle, &state, dname);
5374 if (!ok) {
5375 TALLOC_FREE(talloced);
5376 TALLOC_FREE(dir_hnd);
5377 return UINT64_MAX;
5378 }
5379 TALLOC_FREE(talloced);
5380 }
5381
5382 TALLOC_FREE(dir_hnd);
5383
5384 dsize = config->time_machine_max_size / 512;
5385 dfree = dsize - (state.total_size / 512);
5386 if (dfree > dsize) {
5387 dfree = 0;
5388 }
5389
5390 *_bsize = 512;
5391 *_dsize = dsize;
5392 *_dfree = dfree;
5393 return dfree / 2;
5394 }
5395
5396 static uint64_t fruit_fs_file_id(struct vfs_handle_struct *handle,
5397 const SMB_STRUCT_STAT *psbuf)
5398 {
5399 struct fruit_config_data *config = NULL;
5400
5401 SMB_VFS_HANDLE_GET_DATA(handle, config,
5402 struct fruit_config_data,
5403 return 0);
5404
5405 if (global_fruit_config.nego_aapl &&
5406 config->aapl_zero_file_id)
5407 {
5408 return 0;
5409 }
5410
5411 return SMB_VFS_NEXT_FS_FILE_ID(handle, psbuf);
5412 }
5413
5414 static struct vfs_fn_pointers vfs_fruit_fns = {
5415 .connect_fn = fruit_connect,
5416 .disk_free_fn = fruit_disk_free,
5417
5418 /* File operations */
5419 .fchmod_fn = fruit_fchmod,
5420 .unlinkat_fn = fruit_unlinkat,
5421 .renameat_fn = fruit_renameat,
5422 .openat_fn = fruit_openat,
5423 .close_fn = fruit_close,
5424 .pread_fn = fruit_pread,
5425 .pwrite_fn = fruit_pwrite,
5426 .pread_send_fn = fruit_pread_send,
5427 .pread_recv_fn = fruit_pread_recv,
5428 .pwrite_send_fn = fruit_pwrite_send,
5429 .pwrite_recv_fn = fruit_pwrite_recv,
5430 .fsync_send_fn = fruit_fsync_send,
5431 .fsync_recv_fn = fruit_fsync_recv,
5432 .stat_fn = fruit_stat,
5433 .lstat_fn = fruit_lstat,
5434 .fstat_fn = fruit_fstat,
5435 .fstreaminfo_fn = fruit_fstreaminfo,
5436 .fntimes_fn = fruit_fntimes,
5437 .ftruncate_fn = fruit_ftruncate,
5438 .fallocate_fn = fruit_fallocate,
5439 .create_file_fn = fruit_create_file,
5440 .freaddir_attr_fn = fruit_freaddir_attr,
5441 .offload_read_send_fn = fruit_offload_read_send,
5442 .offload_read_recv_fn = fruit_offload_read_recv,
5443 .offload_write_send_fn = fruit_offload_write_send,
5444 .offload_write_recv_fn = fruit_offload_write_recv,
5445 .fs_file_id_fn = fruit_fs_file_id,
5446
5447 /* NT ACL operations */
5448 .fget_nt_acl_fn = fruit_fget_nt_acl,
5449 .fset_nt_acl_fn = fruit_fset_nt_acl,
5450 };
5451
5452 static_decl_vfs;
5453 NTSTATUS vfs_fruit_init(TALLOC_CTX *ctx)
5454 {
5455 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fruit",
5456 &vfs_fruit_fns);
5457 if (!NT_STATUS_IS_OK(ret)) {
5458 return ret;
5459 }
5460
5461 vfs_fruit_debug_level = debug_add_class("fruit");
5462 if (vfs_fruit_debug_level == -1) {
5463 vfs_fruit_debug_level = DBGC_VFS;
5464 DEBUG(0, ("%s: Couldn't register custom debugging class!\n",
5465 "vfs_fruit_init"));
5466 } else {
5467 DEBUG(10, ("%s: Debug class number of '%s': %d\n",
5468 "vfs_fruit_init","fruit",vfs_fruit_debug_level));
5469 }
5470
5471 return ret;
5472 }
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