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python: models: rename argument ldb to samdb
[samba.git] / source3 / modules / vfs_fruit.c
blobb63fff7f95d218b6f441692e4a18aff3031790b5
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 "lib/util/util_file.h"
34 #include "offload_token.h"
35 #include "string_replace.h"
36 #include "hash_inode.h"
37 #include "lib/adouble.h"
38 #include "lib/util_macstreams.h"
39 #include "source3/smbd/dir.h"
40
41 /*
42 * Enhanced OS X and Netatalk compatibility
43 * ========================================
44 *
45 * This modules takes advantage of vfs_streams_xattr and
46 * vfs_catia. VFS modules vfs_fruit and vfs_streams_xattr must be
47 * loaded in the correct order:
48 *
49 * vfs modules = catia fruit streams_xattr
50 *
51 * The module intercepts the OS X special streams "AFP_AfpInfo" and
52 * "AFP_Resource" and handles them in a special way. All other named
53 * streams are deferred to vfs_streams_xattr.
54 *
55 * The OS X client maps all NTFS illegal characters to the Unicode
56 * private range. This module optionally stores the characters using
57 * their native ASCII encoding using vfs_catia. If you're not enabling
58 * this feature, you can skip catia from vfs modules.
59 *
60 * Finally, open modes are optionally checked against Netatalk AFP
61 * share modes.
62 *
63 * The "AFP_AfpInfo" named stream is a binary blob containing OS X
64 * extended metadata for files and directories. This module optionally
65 * reads and stores this metadata in a way compatible with Netatalk 3
66 * which stores the metadata in an EA "org.netatalk.metadata". Cf
67 * source3/include/MacExtensions.h for a description of the binary
68 * blobs content.
69 *
70 * The "AFP_Resource" named stream may be arbitrarily large, thus it
71 * can't be stored in an xattr on most filesystem. ZFS on Solaris is
72 * the only available filesystem where xattrs can be of any size and
73 * the OS supports using the file APIs for xattrs.
74 *
75 * The AFP_Resource stream is stored in an AppleDouble file prepending
76 * "._" to the filename. On Solaris with ZFS the stream is optionally
77 * stored in an EA "org.netatalk.resource".
78 *
79 *
80 * Extended Attributes
81 * ===================
82 *
83 * The OS X SMB client sends xattrs as ADS too. For xattr interop with
84 * other protocols you may want to adjust the xattr names the VFS
85 * module vfs_streams_xattr uses for storing ADS's. This defaults to
86 * user.DosStream.ADS_NAME:$DATA and can be changed by specifying
87 * these module parameters:
88 *
89 * streams_xattr:prefix = user.
90 * streams_xattr:store_stream_type = false
91 *
92 *
93 * TODO
94 * ====
95 *
96 * - log diagnostic if any needed VFS module is not loaded
97 * (eg with lp_vfs_objects())
98 * - add tests
99 */
100
101 static int vfs_fruit_debug_level = DBGC_VFS;
102
103 static struct global_fruit_config {
104 bool nego_aapl; /* client negotiated AAPL */
105
106 } global_fruit_config;
107
108 #undef DBGC_CLASS
109 #define DBGC_CLASS vfs_fruit_debug_level
110
111 #define FRUIT_PARAM_TYPE_NAME "fruit"
112
113 enum apple_fork {APPLE_FORK_DATA, APPLE_FORK_RSRC};
114
115 enum fruit_rsrc {FRUIT_RSRC_STREAM, FRUIT_RSRC_ADFILE, FRUIT_RSRC_XATTR};
116 enum fruit_meta {FRUIT_META_STREAM, FRUIT_META_NETATALK};
117 enum fruit_locking {FRUIT_LOCKING_NETATALK, FRUIT_LOCKING_NONE};
118 enum fruit_encoding {FRUIT_ENC_NATIVE, FRUIT_ENC_PRIVATE};
119
120 struct fruit_config_data {
121 enum fruit_rsrc rsrc;
122 enum fruit_meta meta;
123 enum fruit_locking locking;
124 enum fruit_encoding encoding;
125 bool use_aapl; /* config from smb.conf */
126 bool use_copyfile;
127 bool readdir_attr_enabled;
128 bool unix_info_enabled;
129 bool copyfile_enabled;
130 bool veto_appledouble;
131 bool posix_rename;
132 bool aapl_zero_file_id;
133 const char *model;
134 bool time_machine;
135 off_t time_machine_max_size;
136 bool convert_adouble;
137 bool wipe_intentionally_left_blank_rfork;
138 bool delete_empty_adfiles;
139 bool validate_afpinfo;
140
141 /*
142 * Additional options, all enabled by default,
143 * possibly useful for analyzing performance. The associated
144 * operations with each of them may be expensive, so having
145 * the chance to disable them individually gives a chance
146 * tweaking the setup for the particular usecase.
147 */
148 bool readdir_attr_rsize;
149 bool readdir_attr_finder_info;
150 bool readdir_attr_max_access;
151 /* Recursion guard. Will go away when we have STATX. */
152 bool in_openat_pathref_fsp;
153 };
154
155 static const struct enum_list fruit_rsrc[] = {
156 {FRUIT_RSRC_STREAM, "stream"}, /* pass on to vfs_streams_xattr */
157 {FRUIT_RSRC_ADFILE, "file"}, /* ._ AppleDouble file */
158 {FRUIT_RSRC_XATTR, "xattr"}, /* Netatalk compatible xattr (ZFS only) */
159 { -1, NULL}
160 };
161
162 static const struct enum_list fruit_meta[] = {
163 {FRUIT_META_STREAM, "stream"}, /* pass on to vfs_streams_xattr */
164 {FRUIT_META_NETATALK, "netatalk"}, /* Netatalk compatible xattr */
165 { -1, NULL}
166 };
167
168 static const struct enum_list fruit_locking[] = {
169 {FRUIT_LOCKING_NETATALK, "netatalk"}, /* synchronize locks with Netatalk */
170 {FRUIT_LOCKING_NONE, "none"},
171 { -1, NULL}
172 };
173
174 static const struct enum_list fruit_encoding[] = {
175 {FRUIT_ENC_NATIVE, "native"}, /* map unicode private chars to ASCII */
176 {FRUIT_ENC_PRIVATE, "private"}, /* keep unicode private chars */
177 { -1, NULL}
178 };
179
180 struct fio {
181 vfs_handle_struct *handle;
182 files_struct *fsp; /* backlink to itself */
183
184 /* tcon config handle */
185 struct fruit_config_data *config;
186
187 /* Backend fsp for AppleDouble file, can be NULL */
188 files_struct *ad_fsp;
189 /* link from adouble_open_from_base_fsp() to fio */
190 struct fio *real_fio;
191
192 /* Denote stream type, meta or rsrc */
193 adouble_type_t type;
194
195 /*
196 * AFP_AfpInfo stream created, but not written yet, thus still a fake
197 * pipe fd. This is set to true in fruit_open_meta if there was no
198 * existing stream but the caller requested O_CREAT. It is later set to
199 * false when we get a write on the stream that then does open and
200 * create the stream.
201 */
202 bool fake_fd;
203 int flags;
204 int mode;
205 };
206
207 /*****************************************************************************
208 * Helper functions
209 *****************************************************************************/
210
211 static struct adouble *ad_get_meta_fsp(TALLOC_CTX *ctx,
212 vfs_handle_struct *handle,
213 const struct smb_filename *smb_fname)
214 {
215 NTSTATUS status;
216 struct adouble *ad = NULL;
217 struct smb_filename *smb_fname_cp = NULL;
218 struct fruit_config_data *config = NULL;
219
220 if (smb_fname->fsp != NULL) {
221 return ad_get(ctx, handle, smb_fname, ADOUBLE_META);
222 }
223
224 SMB_VFS_HANDLE_GET_DATA(handle,
225 config,
226 struct fruit_config_data,
227 return NULL);
228
229 if (config->in_openat_pathref_fsp) {
230 return NULL;
231 }
232
233 smb_fname_cp = cp_smb_filename(ctx,
234 smb_fname);
235 if (smb_fname_cp == NULL) {
236 return NULL;
237 }
238 TALLOC_FREE(smb_fname_cp->stream_name);
239 config->in_openat_pathref_fsp = true;
240 status = openat_pathref_fsp(handle->conn->cwd_fsp,
241 smb_fname_cp);
242 config->in_openat_pathref_fsp = false;
243 if (!NT_STATUS_IS_OK(status)) {
244 TALLOC_FREE(smb_fname_cp);
245 return NULL;
246 }
247
248 ad = ad_get(ctx, handle, smb_fname_cp, ADOUBLE_META);
249 TALLOC_FREE(smb_fname_cp);
250 return ad;
251 }
252
253 static struct fio *fruit_get_complete_fio(vfs_handle_struct *handle,
254 files_struct *fsp)
255 {
256 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
257
258 if (fio == NULL) {
259 return NULL;
260 }
261
262 if (fio->real_fio != NULL) {
263 /*
264 * This is an fsp from adouble_open_from_base_fsp()
265 * we should just pass this to the next
266 * module.
267 */
268 return NULL;
269 }
270
271 return fio;
272 }
273
274 /**
275 * Initialize config struct from our smb.conf config parameters
276 **/
277 static int init_fruit_config(vfs_handle_struct *handle)
278 {
279 struct fruit_config_data *config;
280 int enumval = -1;
281 const char *tm_size_str = NULL;
282
283 config = talloc_zero(handle->conn, struct fruit_config_data);
284 if (!config) {
285 DEBUG(1, ("talloc_zero() failed\n"));
286 errno = ENOMEM;
287 return -1;
288 }
289
290 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
291 "resource", fruit_rsrc, FRUIT_RSRC_ADFILE);
292 if (enumval == -1) {
293 DEBUG(1, ("value for %s: resource type unknown\n",
294 FRUIT_PARAM_TYPE_NAME));
295 return -1;
296 }
297 config->rsrc = (enum fruit_rsrc)enumval;
298
299 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
300 "metadata", fruit_meta, FRUIT_META_NETATALK);
301 if (enumval == -1) {
302 DEBUG(1, ("value for %s: metadata type unknown\n",
303 FRUIT_PARAM_TYPE_NAME));
304 return -1;
305 }
306 config->meta = (enum fruit_meta)enumval;
307
308 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
309 "locking", fruit_locking, FRUIT_LOCKING_NONE);
310 if (enumval == -1) {
311 DEBUG(1, ("value for %s: locking type unknown\n",
312 FRUIT_PARAM_TYPE_NAME));
313 return -1;
314 }
315 config->locking = (enum fruit_locking)enumval;
316
317 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
318 "encoding", fruit_encoding, FRUIT_ENC_PRIVATE);
319 if (enumval == -1) {
320 DEBUG(1, ("value for %s: encoding type unknown\n",
321 FRUIT_PARAM_TYPE_NAME));
322 return -1;
323 }
324 config->encoding = (enum fruit_encoding)enumval;
325
326 if (config->rsrc == FRUIT_RSRC_ADFILE) {
327 config->veto_appledouble = lp_parm_bool(SNUM(handle->conn),
328 FRUIT_PARAM_TYPE_NAME,
329 "veto_appledouble",
330 true);
331 }
332
333 config->use_aapl = lp_parm_bool(
334 -1, FRUIT_PARAM_TYPE_NAME, "aapl", true);
335
336 config->time_machine = lp_parm_bool(
337 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME, "time machine", false);
338
339 config->unix_info_enabled = lp_parm_bool(
340 -1, FRUIT_PARAM_TYPE_NAME, "nfs_aces", true);
341
342 config->use_copyfile = lp_parm_bool(-1, FRUIT_PARAM_TYPE_NAME,
343 "copyfile", false);
344
345 config->posix_rename = lp_parm_bool(
346 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME, "posix_rename", true);
347
348 config->aapl_zero_file_id =
349 lp_parm_bool(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
350 "zero_file_id", true);
351
352 config->readdir_attr_rsize = lp_parm_bool(
353 SNUM(handle->conn), "readdir_attr", "aapl_rsize", true);
354
355 config->readdir_attr_finder_info = lp_parm_bool(
356 SNUM(handle->conn), "readdir_attr", "aapl_finder_info", true);
357
358 config->readdir_attr_max_access = lp_parm_bool(
359 SNUM(handle->conn), "readdir_attr", "aapl_max_access", true);
360
361 config->model = lp_parm_const_string(
362 -1, FRUIT_PARAM_TYPE_NAME, "model", "MacSamba");
363
364 tm_size_str = lp_parm_const_string(
365 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
366 "time machine max size", NULL);
367 if (tm_size_str != NULL) {
368 config->time_machine_max_size = conv_str_size(tm_size_str);
369 }
370
371 config->convert_adouble = lp_parm_bool(
372 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
373 "convert_adouble", true);
374
375 config->wipe_intentionally_left_blank_rfork = lp_parm_bool(
376 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
377 "wipe_intentionally_left_blank_rfork", false);
378
379 config->delete_empty_adfiles = lp_parm_bool(
380 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
381 "delete_empty_adfiles", false);
382
383 config->validate_afpinfo = lp_parm_bool(
384 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
385 "validate_afpinfo", true);
386
387 SMB_VFS_HANDLE_SET_DATA(handle, config,
388 NULL, struct fruit_config_data,
389 return -1);
390
391 return 0;
392 }
393
394 static bool add_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
395 struct stream_struct **streams,
396 const char *name, off_t size,
397 off_t alloc_size)
398 {
399 struct stream_struct *tmp;
400
401 tmp = talloc_realloc(mem_ctx, *streams, struct stream_struct,
402 (*num_streams)+1);
403 if (tmp == NULL) {
404 return false;
405 }
406
407 tmp[*num_streams].name = talloc_asprintf(tmp, "%s:$DATA", name);
408 if (tmp[*num_streams].name == NULL) {
409 return false;
410 }
411
412 tmp[*num_streams].size = size;
413 tmp[*num_streams].alloc_size = alloc_size;
414
415 *streams = tmp;
416 *num_streams += 1;
417 return true;
418 }
419
420 static bool filter_empty_rsrc_stream(unsigned int *num_streams,
421 struct stream_struct **streams)
422 {
423 struct stream_struct *tmp = *streams;
424 unsigned int i;
425
426 if (*num_streams == 0) {
427 return true;
428 }
429
430 for (i = 0; i < *num_streams; i++) {
431 if (strequal_m(tmp[i].name, AFPRESOURCE_STREAM)) {
432 break;
433 }
434 }
435
436 if (i == *num_streams) {
437 return true;
438 }
439
440 if (tmp[i].size > 0) {
441 return true;
442 }
443
444 TALLOC_FREE(tmp[i].name);
445 ARRAY_DEL_ELEMENT(tmp, i, *num_streams);
446 *num_streams -= 1;
447 return true;
448 }
449
450 static bool del_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
451 struct stream_struct **streams,
452 const char *name)
453 {
454 struct stream_struct *tmp = *streams;
455 unsigned int i;
456
457 if (*num_streams == 0) {
458 return true;
459 }
460
461 for (i = 0; i < *num_streams; i++) {
462 if (strequal_m(tmp[i].name, name)) {
463 break;
464 }
465 }
466
467 if (i == *num_streams) {
468 return true;
469 }
470
471 TALLOC_FREE(tmp[i].name);
472 ARRAY_DEL_ELEMENT(tmp, i, *num_streams);
473 *num_streams -= 1;
474 return true;
475 }
476
477 static bool ad_empty_finderinfo(const struct adouble *ad)
478 {
479 int cmp;
480 char emptybuf[ADEDLEN_FINDERI] = {0};
481 char *fi = NULL;
482
483 fi = ad_get_entry(ad, ADEID_FINDERI);
484 if (fi == NULL) {
485 DBG_ERR("Missing FinderInfo in struct adouble [%p]\n", ad);
486 return false;
487 }
488
489 cmp = memcmp(emptybuf, fi, ADEDLEN_FINDERI);
490 return (cmp == 0);
491 }
492
493 static bool ai_empty_finderinfo(const AfpInfo *ai)
494 {
495 int cmp;
496 char emptybuf[ADEDLEN_FINDERI] = {0};
497
498 cmp = memcmp(emptybuf, &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
499 return (cmp == 0);
500 }
501
502 /**
503 * Update btime with btime from Netatalk
504 **/
505 static void update_btime(vfs_handle_struct *handle,
506 struct smb_filename *smb_fname)
507 {
508 uint32_t t;
509 struct timespec creation_time = {0};
510 struct adouble *ad;
511 struct fruit_config_data *config = NULL;
512
513 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
514 return);
515
516 switch (config->meta) {
517 case FRUIT_META_STREAM:
518 return;
519 case FRUIT_META_NETATALK:
520 /* Handled below */
521 break;
522 default:
523 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
524 return;
525 }
526
527 ad = ad_get_meta_fsp(talloc_tos(), handle, smb_fname);
528 if (ad == NULL) {
529 return;
530 }
531 if (ad_getdate(ad, AD_DATE_UNIX | AD_DATE_CREATE, &t) != 0) {
532 TALLOC_FREE(ad);
533 return;
534 }
535 TALLOC_FREE(ad);
536
537 creation_time.tv_sec = convert_uint32_t_to_time_t(t);
538 update_stat_ex_create_time(&smb_fname->st, creation_time);
539
540 return;
541 }
542
543 /**
544 * Map an access mask to a Netatalk single byte byte range lock
545 **/
546 static off_t access_to_netatalk_brl(enum apple_fork fork_type,
547 uint32_t access_mask)
548 {
549 off_t offset;
550
551 switch (access_mask) {
552 case FILE_READ_DATA:
553 offset = AD_FILELOCK_OPEN_RD;
554 break;
555
556 case FILE_WRITE_DATA:
557 case FILE_APPEND_DATA:
558 offset = AD_FILELOCK_OPEN_WR;
559 break;
560
561 default:
562 offset = AD_FILELOCK_OPEN_NONE;
563 break;
564 }
565
566 if (fork_type == APPLE_FORK_RSRC) {
567 if (offset == AD_FILELOCK_OPEN_NONE) {
568 offset = AD_FILELOCK_RSRC_OPEN_NONE;
569 } else {
570 offset += 2;
571 }
572 }
573
574 return offset;
575 }
576
577 /**
578 * Map a deny mode to a Netatalk brl
579 **/
580 static off_t denymode_to_netatalk_brl(enum apple_fork fork_type,
581 uint32_t deny_mode)
582 {
583 off_t offset = 0;
584
585 switch (deny_mode) {
586 case DENY_READ:
587 offset = AD_FILELOCK_DENY_RD;
588 break;
589
590 case DENY_WRITE:
591 offset = AD_FILELOCK_DENY_WR;
592 break;
593
594 default:
595 smb_panic("denymode_to_netatalk_brl: bad deny mode\n");
596 }
597
598 if (fork_type == APPLE_FORK_RSRC) {
599 offset += 2;
600 }
601
602 return offset;
603 }
604
605 /**
606 * Call fcntl() with an exclusive F_GETLK request in order to
607 * determine if there's an existing shared lock
608 *
609 * @return true if the requested lock was found or any error occurred
610 * false if the lock was not found
611 **/
612 static bool test_netatalk_lock(files_struct *fsp, off_t in_offset)
613 {
614 bool result;
615 off_t offset = in_offset;
616 off_t len = 1;
617 int type = F_WRLCK;
618 pid_t pid = 0;
619
620 result = SMB_VFS_GETLOCK(fsp, &offset, &len, &type, &pid);
621 if (result == false) {
622 return true;
623 }
624
625 if (type != F_UNLCK) {
626 return true;
627 }
628
629 return false;
630 }
631
632 static NTSTATUS fruit_check_access(vfs_handle_struct *handle,
633 files_struct *fsp,
634 uint32_t access_mask,
635 uint32_t share_mode)
636 {
637 NTSTATUS status = NT_STATUS_OK;
638 off_t off;
639 bool share_for_read = (share_mode & FILE_SHARE_READ);
640 bool share_for_write = (share_mode & FILE_SHARE_WRITE);
641 bool netatalk_already_open_for_reading = false;
642 bool netatalk_already_open_for_writing = false;
643 bool netatalk_already_open_with_deny_read = false;
644 bool netatalk_already_open_with_deny_write = false;
645 struct GUID req_guid = GUID_random();
646
647 /* FIXME: hardcoded data fork, add resource fork */
648 enum apple_fork fork_type = APPLE_FORK_DATA;
649
650 DBG_DEBUG("fruit_check_access: %s, am: %s/%s, sm: 0x%x\n",
651 fsp_str_dbg(fsp),
652 access_mask & FILE_READ_DATA ? "READ" :"-",
653 access_mask & FILE_WRITE_DATA ? "WRITE" : "-",
654 share_mode);
655
656 if (fsp_get_io_fd(fsp) == -1) {
657 return NT_STATUS_OK;
658 }
659
660 /* Read NetATalk opens and deny modes on the file. */
661 netatalk_already_open_for_reading = test_netatalk_lock(fsp,
662 access_to_netatalk_brl(fork_type,
663 FILE_READ_DATA));
664
665 netatalk_already_open_with_deny_read = test_netatalk_lock(fsp,
666 denymode_to_netatalk_brl(fork_type,
667 DENY_READ));
668
669 netatalk_already_open_for_writing = test_netatalk_lock(fsp,
670 access_to_netatalk_brl(fork_type,
671 FILE_WRITE_DATA));
672
673 netatalk_already_open_with_deny_write = test_netatalk_lock(fsp,
674 denymode_to_netatalk_brl(fork_type,
675 DENY_WRITE));
676
677 /* If there are any conflicts - sharing violation. */
678 if ((access_mask & FILE_READ_DATA) &&
679 netatalk_already_open_with_deny_read) {
680 return NT_STATUS_SHARING_VIOLATION;
681 }
682
683 if (!share_for_read &&
684 netatalk_already_open_for_reading) {
685 return NT_STATUS_SHARING_VIOLATION;
686 }
687
688 if ((access_mask & FILE_WRITE_DATA) &&
689 netatalk_already_open_with_deny_write) {
690 return NT_STATUS_SHARING_VIOLATION;
691 }
692
693 if (!share_for_write &&
694 netatalk_already_open_for_writing) {
695 return NT_STATUS_SHARING_VIOLATION;
696 }
697
698 if (!(access_mask & FILE_READ_DATA)) {
699 /*
700 * Nothing we can do here, we need read access
701 * to set locks.
702 */
703 return NT_STATUS_OK;
704 }
705
706 /* Set NetAtalk locks matching our access */
707 if (access_mask & FILE_READ_DATA) {
708 off = access_to_netatalk_brl(fork_type, FILE_READ_DATA);
709 req_guid.time_hi_and_version = __LINE__;
710 status = do_lock(
711 fsp,
712 talloc_tos(),
713 &req_guid,
714 fsp->op->global->open_persistent_id,
715 1,
716 off,
717 READ_LOCK,
718 POSIX_LOCK,
719 NULL,
720 NULL);
721
722 if (!NT_STATUS_IS_OK(status)) {
723 return status;
724 }
725 }
726
727 if (!share_for_read) {
728 off = denymode_to_netatalk_brl(fork_type, DENY_READ);
729 req_guid.time_hi_and_version = __LINE__;
730 status = do_lock(
731 fsp,
732 talloc_tos(),
733 &req_guid,
734 fsp->op->global->open_persistent_id,
735 1,
736 off,
737 READ_LOCK,
738 POSIX_LOCK,
739 NULL,
740 NULL);
741
742 if (!NT_STATUS_IS_OK(status)) {
743 return status;
744 }
745 }
746
747 if (access_mask & FILE_WRITE_DATA) {
748 off = access_to_netatalk_brl(fork_type, FILE_WRITE_DATA);
749 req_guid.time_hi_and_version = __LINE__;
750 status = do_lock(
751 fsp,
752 talloc_tos(),
753 &req_guid,
754 fsp->op->global->open_persistent_id,
755 1,
756 off,
757 READ_LOCK,
758 POSIX_LOCK,
759 NULL,
760 NULL);
761
762 if (!NT_STATUS_IS_OK(status)) {
763 return status;
764 }
765 }
766
767 if (!share_for_write) {
768 off = denymode_to_netatalk_brl(fork_type, DENY_WRITE);
769 req_guid.time_hi_and_version = __LINE__;
770 status = do_lock(
771 fsp,
772 talloc_tos(),
773 &req_guid,
774 fsp->op->global->open_persistent_id,
775 1,
776 off,
777 READ_LOCK,
778 POSIX_LOCK,
779 NULL,
780 NULL);
781
782 if (!NT_STATUS_IS_OK(status)) {
783 return status;
784 }
785 }
786
787 return NT_STATUS_OK;
788 }
789
790 static NTSTATUS check_aapl(vfs_handle_struct *handle,
791 struct smb_request *req,
792 const struct smb2_create_blobs *in_context_blobs,
793 struct smb2_create_blobs *out_context_blobs)
794 {
795 struct fruit_config_data *config;
796 NTSTATUS status;
797 struct smb2_create_blob *aapl = NULL;
798 uint32_t cmd;
799 bool ok;
800 uint8_t p[16];
801 DATA_BLOB blob = data_blob_talloc(req, NULL, 0);
802 uint64_t req_bitmap, client_caps;
803 uint64_t server_caps = SMB2_CRTCTX_AAPL_UNIX_BASED;
804 smb_ucs2_t *model;
805 size_t modellen;
806
807 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
808 return NT_STATUS_UNSUCCESSFUL);
809
810 if (!config->use_aapl
811 || in_context_blobs == NULL
812 || out_context_blobs == NULL) {
813 return NT_STATUS_OK;
814 }
815
816 aapl = smb2_create_blob_find(in_context_blobs,
817 SMB2_CREATE_TAG_AAPL);
818 if (aapl == NULL) {
819 return NT_STATUS_OK;
820 }
821
822 if (aapl->data.length != 24) {
823 DEBUG(1, ("unexpected AAPL ctxt length: %ju\n",
824 (uintmax_t)aapl->data.length));
825 return NT_STATUS_INVALID_PARAMETER;
826 }
827
828 cmd = IVAL(aapl->data.data, 0);
829 if (cmd != SMB2_CRTCTX_AAPL_SERVER_QUERY) {
830 DEBUG(1, ("unsupported AAPL cmd: %d\n", cmd));
831 return NT_STATUS_INVALID_PARAMETER;
832 }
833
834 req_bitmap = BVAL(aapl->data.data, 8);
835 client_caps = BVAL(aapl->data.data, 16);
836
837 SIVAL(p, 0, SMB2_CRTCTX_AAPL_SERVER_QUERY);
838 SIVAL(p, 4, 0);
839 SBVAL(p, 8, req_bitmap);
840 ok = data_blob_append(req, &blob, p, 16);
841 if (!ok) {
842 return NT_STATUS_UNSUCCESSFUL;
843 }
844
845 if (req_bitmap & SMB2_CRTCTX_AAPL_SERVER_CAPS) {
846 if ((client_caps & SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR) &&
847 (handle->conn->fs_capabilities & FILE_NAMED_STREAMS)) {
848 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR;
849 config->readdir_attr_enabled = true;
850 }
851
852 if (config->use_copyfile) {
853 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_OSX_COPYFILE;
854 config->copyfile_enabled = true;
855 }
856
857 /*
858 * The client doesn't set the flag, so we can't check
859 * for it and just set it unconditionally
860 */
861 if (config->unix_info_enabled) {
862 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_NFS_ACE;
863 }
864
865 SBVAL(p, 0, server_caps);
866 ok = data_blob_append(req, &blob, p, 8);
867 if (!ok) {
868 return NT_STATUS_UNSUCCESSFUL;
869 }
870 }
871
872 if (req_bitmap & SMB2_CRTCTX_AAPL_VOLUME_CAPS) {
873 int val = lp_case_sensitive(SNUM(handle->conn));
874 uint64_t caps = 0;
875
876 switch (val) {
877 case Auto:
878 break;
879
880 case True:
881 caps |= SMB2_CRTCTX_AAPL_CASE_SENSITIVE;
882 break;
883
884 default:
885 break;
886 }
887
888 if (config->time_machine) {
889 caps |= SMB2_CRTCTX_AAPL_FULL_SYNC;
890 }
891
892 SBVAL(p, 0, caps);
893
894 ok = data_blob_append(req, &blob, p, 8);
895 if (!ok) {
896 return NT_STATUS_UNSUCCESSFUL;
897 }
898 }
899
900 if (req_bitmap & SMB2_CRTCTX_AAPL_MODEL_INFO) {
901 ok = convert_string_talloc(req,
902 CH_UNIX, CH_UTF16LE,
903 config->model, strlen(config->model),
904 &model, &modellen);
905 if (!ok) {
906 return NT_STATUS_UNSUCCESSFUL;
907 }
908
909 SIVAL(p, 0, 0);
910 SIVAL(p + 4, 0, modellen);
911 ok = data_blob_append(req, &blob, p, 8);
912 if (!ok) {
913 talloc_free(model);
914 return NT_STATUS_UNSUCCESSFUL;
915 }
916
917 ok = data_blob_append(req, &blob, model, modellen);
918 talloc_free(model);
919 if (!ok) {
920 return NT_STATUS_UNSUCCESSFUL;
921 }
922 }
923
924 status = smb2_create_blob_add(out_context_blobs,
925 out_context_blobs,
926 SMB2_CREATE_TAG_AAPL,
927 blob);
928 if (NT_STATUS_IS_OK(status)) {
929 global_fruit_config.nego_aapl = true;
930 }
931
932 return status;
933 }
934
935 static bool readdir_attr_meta_finderi_stream(
936 struct vfs_handle_struct *handle,
937 const struct smb_filename *smb_fname,
938 AfpInfo *ai)
939 {
940 struct smb_filename *stream_name = NULL;
941 files_struct *fsp = NULL;
942 ssize_t nread;
943 NTSTATUS status;
944 bool ok;
945 uint8_t buf[AFP_INFO_SIZE];
946
947 status = synthetic_pathref(talloc_tos(),
948 handle->conn->cwd_fsp,
949 smb_fname->base_name,
950 AFPINFO_STREAM_NAME,
951 NULL,
952 smb_fname->twrp,
953 smb_fname->flags,
954 &stream_name);
955 if (!NT_STATUS_IS_OK(status)) {
956 return false;
957 }
958
959 status = SMB_VFS_CREATE_FILE(
960 handle->conn, /* conn */
961 NULL, /* req */
962 NULL, /* dirfsp */
963 stream_name, /* fname */
964 FILE_READ_DATA, /* access_mask */
965 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
966 FILE_SHARE_DELETE),
967 FILE_OPEN, /* create_disposition*/
968 0, /* create_options */
969 0, /* file_attributes */
970 INTERNAL_OPEN_ONLY, /* oplock_request */
971 NULL, /* lease */
972 0, /* allocation_size */
973 0, /* private_flags */
974 NULL, /* sd */
975 NULL, /* ea_list */
976 &fsp, /* result */
977 NULL, /* pinfo */
978 NULL, NULL); /* create context */
979
980 TALLOC_FREE(stream_name);
981
982 if (!NT_STATUS_IS_OK(status)) {
983 return false;
984 }
985
986 nread = SMB_VFS_PREAD(fsp, &buf[0], AFP_INFO_SIZE, 0);
987 if (nread != AFP_INFO_SIZE) {
988 DBG_ERR("short read [%s] [%zd/%d]\n",
989 smb_fname_str_dbg(stream_name), nread, AFP_INFO_SIZE);
990 ok = false;
991 goto fail;
992 }
993
994 memcpy(&ai->afpi_FinderInfo[0], &buf[AFP_OFF_FinderInfo],
995 AFP_FinderSize);
996
997 ok = true;
998
999 fail:
1000 if (fsp != NULL) {
1001 close_file_free(NULL, &fsp, NORMAL_CLOSE);
1002 }
1003
1004 return ok;
1005 }
1006
1007 static bool readdir_attr_meta_finderi_netatalk(
1008 struct vfs_handle_struct *handle,
1009 const struct smb_filename *smb_fname,
1010 AfpInfo *ai)
1011 {
1012 struct adouble *ad = NULL;
1013 char *p = NULL;
1014
1015 ad = ad_get_meta_fsp(talloc_tos(), handle, smb_fname);
1016 if (ad == NULL) {
1017 return false;
1018 }
1019
1020 p = ad_get_entry(ad, ADEID_FINDERI);
1021 if (p == NULL) {
1022 DBG_ERR("No ADEID_FINDERI for [%s]\n", smb_fname->base_name);
1023 TALLOC_FREE(ad);
1024 return false;
1025 }
1026
1027 memcpy(&ai->afpi_FinderInfo[0], p, AFP_FinderSize);
1028 TALLOC_FREE(ad);
1029 return true;
1030 }
1031
1032 static bool readdir_attr_meta_finderi(struct vfs_handle_struct *handle,
1033 const struct smb_filename *smb_fname,
1034 struct readdir_attr_data *attr_data)
1035 {
1036 struct fruit_config_data *config = NULL;
1037 uint32_t date_added;
1038 AfpInfo ai = {0};
1039 bool ok;
1040
1041 SMB_VFS_HANDLE_GET_DATA(handle, config,
1042 struct fruit_config_data,
1043 return false);
1044
1045 switch (config->meta) {
1046 case FRUIT_META_NETATALK:
1047 ok = readdir_attr_meta_finderi_netatalk(
1048 handle, smb_fname, &ai);
1049 break;
1050
1051 case FRUIT_META_STREAM:
1052 ok = readdir_attr_meta_finderi_stream(
1053 handle, smb_fname, &ai);
1054 break;
1055
1056 default:
1057 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
1058 return false;
1059 }
1060
1061 if (!ok) {
1062 /* Don't bother with errors, it's likely ENOENT */
1063 return true;
1064 }
1065
1066 if (S_ISREG(smb_fname->st.st_ex_mode)) {
1067 /* finder_type */
1068 memcpy(&attr_data->attr_data.aapl.finder_info[0],
1069 &ai.afpi_FinderInfo[0], 4);
1070
1071 /* finder_creator */
1072 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 4,
1073 &ai.afpi_FinderInfo[4], 4);
1074 }
1075
1076 /* finder_flags */
1077 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 8,
1078 &ai.afpi_FinderInfo[8], 2);
1079
1080 /* finder_ext_flags */
1081 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 10,
1082 &ai.afpi_FinderInfo[24], 2);
1083
1084 /* creation date */
1085 date_added = convert_time_t_to_uint32_t(
1086 smb_fname->st.st_ex_btime.tv_sec - AD_DATE_DELTA);
1087
1088 RSIVAL(&attr_data->attr_data.aapl.finder_info[0], 12, date_added);
1089
1090 return true;
1091 }
1092
1093 static uint64_t readdir_attr_rfork_size_adouble(
1094 struct vfs_handle_struct *handle,
1095 const struct smb_filename *smb_fname)
1096 {
1097 struct adouble *ad = NULL;
1098 uint64_t rfork_size;
1099
1100 ad = ad_get(talloc_tos(), handle, smb_fname,
1101 ADOUBLE_RSRC);
1102 if (ad == NULL) {
1103 return 0;
1104 }
1105
1106 rfork_size = ad_getentrylen(ad, ADEID_RFORK);
1107 TALLOC_FREE(ad);
1108
1109 return rfork_size;
1110 }
1111
1112 static uint64_t readdir_attr_rfork_size_stream(
1113 struct vfs_handle_struct *handle,
1114 const struct smb_filename *smb_fname)
1115 {
1116 struct smb_filename *stream_name = NULL;
1117 int ret;
1118 uint64_t rfork_size;
1119
1120 stream_name = synthetic_smb_fname(talloc_tos(),
1121 smb_fname->base_name,
1122 AFPRESOURCE_STREAM_NAME,
1123 NULL,
1124 smb_fname->twrp,
1125 0);
1126 if (stream_name == NULL) {
1127 return 0;
1128 }
1129
1130 ret = SMB_VFS_STAT(handle->conn, stream_name);
1131 if (ret != 0) {
1132 TALLOC_FREE(stream_name);
1133 return 0;
1134 }
1135
1136 rfork_size = stream_name->st.st_ex_size;
1137 TALLOC_FREE(stream_name);
1138
1139 return rfork_size;
1140 }
1141
1142 static uint64_t readdir_attr_rfork_size(struct vfs_handle_struct *handle,
1143 const struct smb_filename *smb_fname)
1144 {
1145 struct fruit_config_data *config = NULL;
1146 uint64_t rfork_size;
1147
1148 SMB_VFS_HANDLE_GET_DATA(handle, config,
1149 struct fruit_config_data,
1150 return 0);
1151
1152 switch (config->rsrc) {
1153 case FRUIT_RSRC_ADFILE:
1154 rfork_size = readdir_attr_rfork_size_adouble(handle,
1155 smb_fname);
1156 break;
1157
1158 case FRUIT_RSRC_XATTR:
1159 case FRUIT_RSRC_STREAM:
1160 rfork_size = readdir_attr_rfork_size_stream(handle,
1161 smb_fname);
1162 break;
1163
1164 default:
1165 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
1166 rfork_size = 0;
1167 break;
1168 }
1169
1170 return rfork_size;
1171 }
1172
1173 static NTSTATUS readdir_attr_macmeta(struct vfs_handle_struct *handle,
1174 const struct smb_filename *smb_fname,
1175 struct readdir_attr_data *attr_data)
1176 {
1177 NTSTATUS status = NT_STATUS_OK;
1178 struct fruit_config_data *config = NULL;
1179 bool ok;
1180
1181 SMB_VFS_HANDLE_GET_DATA(handle, config,
1182 struct fruit_config_data,
1183 return NT_STATUS_UNSUCCESSFUL);
1184
1185
1186 /* Ensure we return a default value in the creation_date field */
1187 RSIVAL(&attr_data->attr_data.aapl.finder_info, 12, AD_DATE_START);
1188
1189 /*
1190 * Resource fork length
1191 */
1192
1193 if (config->readdir_attr_rsize) {
1194 uint64_t rfork_size;
1195
1196 rfork_size = readdir_attr_rfork_size(handle, smb_fname);
1197 attr_data->attr_data.aapl.rfork_size = rfork_size;
1198 }
1199
1200 /*
1201 * FinderInfo
1202 */
1203
1204 if (config->readdir_attr_finder_info) {
1205 ok = readdir_attr_meta_finderi(handle, smb_fname, attr_data);
1206 if (!ok) {
1207 status = NT_STATUS_INTERNAL_ERROR;
1208 }
1209 }
1210
1211 return status;
1212 }
1213
1214 static NTSTATUS remove_virtual_nfs_aces(struct security_descriptor *psd)
1215 {
1216 NTSTATUS status;
1217 uint32_t i;
1218
1219 if (psd->dacl == NULL) {
1220 return NT_STATUS_OK;
1221 }
1222
1223 for (i = 0; i < psd->dacl->num_aces; i++) {
1224 /* MS NFS style mode/uid/gid */
1225 int cmp = dom_sid_compare_domain(
1226 &global_sid_Unix_NFS,
1227 &psd->dacl->aces[i].trustee);
1228 if (cmp != 0) {
1229 /* Normal ACE entry. */
1230 continue;
1231 }
1232
1233 /*
1234 * security_descriptor_dacl_del()
1235 * *must* return NT_STATUS_OK as we know
1236 * we have something to remove.
1237 */
1238
1239 status = security_descriptor_dacl_del(psd,
1240 &psd->dacl->aces[i].trustee);
1241 if (!NT_STATUS_IS_OK(status)) {
1242 DBG_WARNING("failed to remove MS NFS style ACE: %s\n",
1243 nt_errstr(status));
1244 return status;
1245 }
1246
1247 /*
1248 * security_descriptor_dacl_del() may delete more
1249 * then one entry subsequent to this one if the
1250 * SID matches, but we only need to ensure that
1251 * we stay looking at the same element in the array.
1252 */
1253 i--;
1254 }
1255 return NT_STATUS_OK;
1256 }
1257
1258 /* Search MS NFS style ACE with UNIX mode */
1259 static NTSTATUS check_ms_nfs(vfs_handle_struct *handle,
1260 files_struct *fsp,
1261 struct security_descriptor *psd,
1262 mode_t *pmode,
1263 bool *pdo_chmod)
1264 {
1265 uint32_t i;
1266 struct fruit_config_data *config = NULL;
1267
1268 *pdo_chmod = false;
1269
1270 SMB_VFS_HANDLE_GET_DATA(handle, config,
1271 struct fruit_config_data,
1272 return NT_STATUS_UNSUCCESSFUL);
1273
1274 if (!global_fruit_config.nego_aapl) {
1275 return NT_STATUS_OK;
1276 }
1277 if (psd->dacl == NULL || !config->unix_info_enabled) {
1278 return NT_STATUS_OK;
1279 }
1280
1281 for (i = 0; i < psd->dacl->num_aces; i++) {
1282 if (dom_sid_compare_domain(
1283 &global_sid_Unix_NFS_Mode,
1284 &psd->dacl->aces[i].trustee) == 0) {
1285 *pmode = (mode_t)psd->dacl->aces[i].trustee.sub_auths[2];
1286 *pmode &= (S_IRWXU | S_IRWXG | S_IRWXO);
1287 *pdo_chmod = true;
1288
1289 DEBUG(10, ("MS NFS chmod request %s, %04o\n",
1290 fsp_str_dbg(fsp), (unsigned)(*pmode)));
1291 break;
1292 }
1293 }
1294
1295 /*
1296 * Remove any incoming virtual ACE entries generated by
1297 * fruit_fget_nt_acl().
1298 */
1299
1300 return remove_virtual_nfs_aces(psd);
1301 }
1302
1303 /****************************************************************************
1304 * VFS ops
1305 ****************************************************************************/
1306
1307 static int fruit_connect(vfs_handle_struct *handle,
1308 const char *service,
1309 const char *user)
1310 {
1311 int rc;
1312 char *list = NULL, *newlist = NULL;
1313 struct fruit_config_data *config;
1314 const struct loadparm_substitution *lp_sub =
1315 loadparm_s3_global_substitution();
1316
1317 DEBUG(10, ("fruit_connect\n"));
1318
1319 rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
1320 if (rc < 0) {
1321 return rc;
1322 }
1323
1324 rc = init_fruit_config(handle);
1325 if (rc != 0) {
1326 return rc;
1327 }
1328
1329 SMB_VFS_HANDLE_GET_DATA(handle, config,
1330 struct fruit_config_data, return -1);
1331
1332 if (config->veto_appledouble) {
1333 list = lp_veto_files(talloc_tos(), lp_sub, SNUM(handle->conn));
1334
1335 if (list) {
1336 if (strstr(list, "/" ADOUBLE_NAME_PREFIX "*/") == NULL) {
1337 newlist = talloc_asprintf(
1338 list,
1339 "%s/" ADOUBLE_NAME_PREFIX "*/",
1340 list);
1341 lp_do_parameter(SNUM(handle->conn),
1342 "veto files",
1343 newlist);
1344 }
1345 } else {
1346 lp_do_parameter(SNUM(handle->conn),
1347 "veto files",
1348 "/" ADOUBLE_NAME_PREFIX "*/");
1349 }
1350
1351 TALLOC_FREE(list);
1352 }
1353
1354 if (config->encoding == FRUIT_ENC_NATIVE) {
1355 lp_do_parameter(SNUM(handle->conn),
1356 "catia:mappings",
1357 macos_string_replace_map);
1358 }
1359
1360 if (config->time_machine) {
1361 DBG_NOTICE("Enabling durable handles for Time Machine "
1362 "support on [%s]\n", service);
1363 lp_do_parameter(SNUM(handle->conn), "durable handles", "yes");
1364 lp_do_parameter(SNUM(handle->conn), "kernel oplocks", "no");
1365 lp_do_parameter(SNUM(handle->conn), "kernel share modes", "no");
1366 if (!lp_strict_sync(SNUM(handle->conn))) {
1367 DBG_WARNING("Time Machine without strict sync is not "
1368 "recommended!\n");
1369 }
1370 lp_do_parameter(SNUM(handle->conn), "posix locking", "no");
1371 }
1372
1373 return rc;
1374 }
1375
1376 static void fio_ref_destroy_fn(void *p_data)
1377 {
1378 struct fio *ref_fio = (struct fio *)p_data;
1379 if (ref_fio->real_fio != NULL) {
1380 SMB_ASSERT(ref_fio->real_fio->ad_fsp == ref_fio->fsp);
1381 ref_fio->real_fio->ad_fsp = NULL;
1382 ref_fio->real_fio = NULL;
1383 }
1384 }
1385
1386 static void fio_close_ad_fsp(struct fio *fio)
1387 {
1388 if (fio->ad_fsp != NULL) {
1389 fd_close(fio->ad_fsp);
1390 file_free(NULL, fio->ad_fsp);
1391 /* fio_ref_destroy_fn() should have cleared this */
1392 SMB_ASSERT(fio->ad_fsp == NULL);
1393 }
1394 }
1395
1396 static void fio_destroy_fn(void *p_data)
1397 {
1398 struct fio *fio = (struct fio *)p_data;
1399 fio_close_ad_fsp(fio);
1400 }
1401
1402 static int fruit_open_meta_stream(vfs_handle_struct *handle,
1403 const struct files_struct *dirfsp,
1404 const struct smb_filename *smb_fname,
1405 files_struct *fsp,
1406 int flags,
1407 mode_t mode)
1408 {
1409 struct fruit_config_data *config = NULL;
1410 struct fio *fio = NULL;
1411 struct vfs_open_how how = {
1412 .flags = flags & ~O_CREAT,
1413 .mode = mode,
1414 };
1415 int fd;
1416
1417 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
1418
1419 SMB_VFS_HANDLE_GET_DATA(handle, config,
1420 struct fruit_config_data, return -1);
1421
1422 fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, fio_destroy_fn);
1423 fio->handle = handle;
1424 fio->fsp = fsp;
1425 fio->type = ADOUBLE_META;
1426 fio->config = config;
1427
1428 fd = SMB_VFS_NEXT_OPENAT(handle,
1429 dirfsp,
1430 smb_fname,
1431 fsp,
1432 &how);
1433 if (fd != -1) {
1434 return fd;
1435 }
1436
1437 if (!(flags & O_CREAT)) {
1438 VFS_REMOVE_FSP_EXTENSION(handle, fsp);
1439 return -1;
1440 }
1441
1442 fd = vfs_fake_fd();
1443 if (fd == -1) {
1444 VFS_REMOVE_FSP_EXTENSION(handle, fsp);
1445 return -1;
1446 }
1447
1448 fio->fake_fd = true;
1449 fio->flags = flags;
1450 fio->mode = mode;
1451
1452 return fd;
1453 }
1454
1455 static int fruit_open_meta_netatalk(vfs_handle_struct *handle,
1456 const struct files_struct *dirfsp,
1457 const struct smb_filename *smb_fname,
1458 files_struct *fsp,
1459 int flags,
1460 mode_t mode)
1461 {
1462 struct fruit_config_data *config = NULL;
1463 struct fio *fio = NULL;
1464 struct adouble *ad = NULL;
1465 bool meta_exists = false;
1466 int fd;
1467
1468 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
1469
1470 /*
1471 * We know this is a stream open, so fsp->base_fsp must
1472 * already be open.
1473 */
1474 SMB_ASSERT(fsp_is_alternate_stream(fsp));
1475 SMB_ASSERT(fsp->base_fsp->fsp_name->fsp == fsp->base_fsp);
1476
1477 ad = ad_get(talloc_tos(), handle, fsp->base_fsp->fsp_name, ADOUBLE_META);
1478 if (ad != NULL) {
1479 meta_exists = true;
1480 }
1481
1482 TALLOC_FREE(ad);
1483
1484 if (!meta_exists && !(flags & O_CREAT)) {
1485 errno = ENOENT;
1486 return -1;
1487 }
1488
1489 fd = vfs_fake_fd();
1490 if (fd == -1) {
1491 return -1;
1492 }
1493
1494 SMB_VFS_HANDLE_GET_DATA(handle, config,
1495 struct fruit_config_data, return -1);
1496
1497 fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, fio_destroy_fn);
1498 fio->handle = handle;
1499 fio->fsp = fsp;
1500 fio->type = ADOUBLE_META;
1501 fio->config = config;
1502 fio->fake_fd = true;
1503 fio->flags = flags;
1504 fio->mode = mode;
1505
1506 return fd;
1507 }
1508
1509 static int fruit_open_meta(vfs_handle_struct *handle,
1510 const struct files_struct *dirfsp,
1511 const struct smb_filename *smb_fname,
1512 files_struct *fsp, int flags, mode_t mode)
1513 {
1514 int fd;
1515 struct fruit_config_data *config = NULL;
1516
1517 DBG_DEBUG("path [%s]\n", smb_fname_str_dbg(smb_fname));
1518
1519 SMB_VFS_HANDLE_GET_DATA(handle, config,
1520 struct fruit_config_data, return -1);
1521
1522 switch (config->meta) {
1523 case FRUIT_META_STREAM:
1524 fd = fruit_open_meta_stream(handle, dirfsp, smb_fname,
1525 fsp, flags, mode);
1526 break;
1527
1528 case FRUIT_META_NETATALK:
1529 fd = fruit_open_meta_netatalk(handle, dirfsp, smb_fname,
1530 fsp, flags, mode);
1531 break;
1532
1533 default:
1534 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
1535 return -1;
1536 }
1537
1538 DBG_DEBUG("path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
1539
1540 return fd;
1541 }
1542
1543 static int fruit_open_rsrc_adouble(vfs_handle_struct *handle,
1544 const struct files_struct *dirfsp,
1545 const struct smb_filename *smb_fname,
1546 files_struct *fsp,
1547 int flags,
1548 mode_t mode)
1549 {
1550 int rc = 0;
1551 struct fruit_config_data *config = NULL;
1552 struct files_struct *ad_fsp = NULL;
1553 struct fio *fio = NULL;
1554 struct fio *ref_fio = NULL;
1555 NTSTATUS status;
1556 int fd = -1;
1557
1558 SMB_VFS_HANDLE_GET_DATA(handle, config,
1559 struct fruit_config_data, return -1);
1560
1561 if ((!(flags & O_CREAT)) &&
1562 S_ISDIR(fsp->base_fsp->fsp_name->st.st_ex_mode))
1563 {
1564 /* sorry, but directories don't have a resource fork */
1565 errno = ENOENT;
1566 rc = -1;
1567 goto exit;
1568 }
1569
1570 /*
1571 * We return a fake_fd to the vfs modules above,
1572 * while we open an internal backend fsp for the
1573 * '._' file for the next vfs modules.
1574 *
1575 * Note that adouble_open_from_base_fsp() recurses
1576 * into fruit_openat(), but it'll just pass to
1577 * the next module as just opens a flat file on
1578 * disk.
1579 */
1580
1581 fd = vfs_fake_fd();
1582 if (fd == -1) {
1583 rc = fd;
1584 goto exit;
1585 }
1586
1587 status = adouble_open_from_base_fsp(fsp->conn->cwd_fsp,
1588 fsp->base_fsp,
1589 ADOUBLE_RSRC,
1590 flags,
1591 mode,
1592 &ad_fsp);
1593 if (!NT_STATUS_IS_OK(status)) {
1594 errno = map_errno_from_nt_status(status);
1595 rc = -1;
1596 goto exit;
1597 }
1598
1599 /*
1600 * Now we need to glue both handles together,
1601 * so that they automatically detach each other
1602 * on close.
1603 */
1604 fio = fruit_get_complete_fio(handle, fsp);
1605 if (fio == NULL) {
1606 DBG_ERR("fio=NULL for [%s]\n", fsp_str_dbg(fsp));
1607 errno = EBADF;
1608 rc = -1;
1609 goto exit;
1610 }
1611
1612 ref_fio = VFS_ADD_FSP_EXTENSION(handle, ad_fsp,
1613 struct fio,
1614 fio_ref_destroy_fn);
1615 if (ref_fio == NULL) {
1616 int saved_errno = errno;
1617 fd_close(ad_fsp);
1618 file_free(NULL, ad_fsp);
1619 ad_fsp = NULL;
1620 errno = saved_errno;
1621 rc = -1;
1622 goto exit;
1623 }
1624
1625 SMB_ASSERT(ref_fio->fsp == NULL);
1626 ref_fio->handle = handle;
1627 ref_fio->fsp = ad_fsp;
1628 ref_fio->type = ADOUBLE_RSRC;
1629 ref_fio->config = config;
1630 ref_fio->real_fio = fio;
1631 SMB_ASSERT(fio->ad_fsp == NULL);
1632 fio->ad_fsp = ad_fsp;
1633 fio->fake_fd = true;
1634
1635 exit:
1636
1637 DEBUG(10, ("fruit_open resource fork: rc=%d\n", rc));
1638 if (rc != 0) {
1639 int saved_errno = errno;
1640 if (fd != -1) {
1641 vfs_fake_fd_close(fd);
1642 }
1643 errno = saved_errno;
1644 return rc;
1645 }
1646 return fd;
1647 }
1648
1649 static int fruit_open_rsrc_xattr(vfs_handle_struct *handle,
1650 const struct files_struct *dirfsp,
1651 const struct smb_filename *smb_fname,
1652 files_struct *fsp,
1653 int flags,
1654 mode_t mode)
1655 {
1656 #ifdef HAVE_ATTROPEN
1657 int fd = -1;
1658
1659 /*
1660 * As there's no attropenat() this is only going to work with AT_FDCWD.
1661 */
1662 SMB_ASSERT(fsp_get_pathref_fd(dirfsp) == AT_FDCWD);
1663
1664 fd = attropen(smb_fname->base_name,
1665 AFPRESOURCE_EA_NETATALK,
1666 flags,
1667 mode);
1668 if (fd == -1) {
1669 return -1;
1670 }
1671
1672 return fd;
1673
1674 #else
1675 errno = ENOSYS;
1676 return -1;
1677 #endif
1678 }
1679
1680 static int fruit_open_rsrc(vfs_handle_struct *handle,
1681 const struct files_struct *dirfsp,
1682 const struct smb_filename *smb_fname,
1683 files_struct *fsp, int flags, mode_t mode)
1684 {
1685 int fd;
1686 struct fruit_config_data *config = NULL;
1687 struct fio *fio = NULL;
1688
1689 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
1690
1691 SMB_VFS_HANDLE_GET_DATA(handle, config,
1692 struct fruit_config_data, return -1);
1693
1694 fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, fio_destroy_fn);
1695 fio->handle = handle;
1696 fio->fsp = fsp;
1697 fio->type = ADOUBLE_RSRC;
1698 fio->config = config;
1699
1700 switch (config->rsrc) {
1701 case FRUIT_RSRC_STREAM: {
1702 struct vfs_open_how how = {
1703 .flags = flags, .mode = mode,
1704 };
1705 fd = SMB_VFS_NEXT_OPENAT(handle,
1706 dirfsp,
1707 smb_fname,
1708 fsp,
1709 &how);
1710 break;
1711 }
1712
1713 case FRUIT_RSRC_ADFILE:
1714 fd = fruit_open_rsrc_adouble(handle, dirfsp, smb_fname,
1715 fsp, flags, mode);
1716 break;
1717
1718 case FRUIT_RSRC_XATTR:
1719 fd = fruit_open_rsrc_xattr(handle, dirfsp, smb_fname,
1720 fsp, flags, mode);
1721 break;
1722
1723 default:
1724 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
1725 errno = EINVAL;
1726 return -1;
1727 }
1728
1729 DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
1730
1731 if (fd == -1) {
1732 return -1;
1733 }
1734
1735 return fd;
1736 }
1737
1738 static int fruit_openat(vfs_handle_struct *handle,
1739 const struct files_struct *dirfsp,
1740 const struct smb_filename *smb_fname,
1741 files_struct *fsp,
1742 const struct vfs_open_how *how)
1743 {
1744 int fd;
1745
1746 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
1747
1748 if (!is_named_stream(smb_fname)) {
1749 return SMB_VFS_NEXT_OPENAT(handle,
1750 dirfsp,
1751 smb_fname,
1752 fsp,
1753 how);
1754 }
1755
1756 if (how->resolve != 0) {
1757 errno = ENOSYS;
1758 return -1;
1759 }
1760
1761 SMB_ASSERT(fsp_is_alternate_stream(fsp));
1762
1763 if (is_afpinfo_stream(smb_fname->stream_name)) {
1764 fd = fruit_open_meta(handle,
1765 dirfsp,
1766 smb_fname,
1767 fsp,
1768 how->flags,
1769 how->mode);
1770 } else if (is_afpresource_stream(smb_fname->stream_name)) {
1771 fd = fruit_open_rsrc(handle,
1772 dirfsp,
1773 smb_fname,
1774 fsp,
1775 how->flags,
1776 how->mode);
1777 } else {
1778 fd = SMB_VFS_NEXT_OPENAT(handle,
1779 dirfsp,
1780 smb_fname,
1781 fsp,
1782 how);
1783 }
1784
1785 DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
1786
1787 /* Prevent reopen optimisation */
1788 fsp->fsp_flags.have_proc_fds = false;
1789 return fd;
1790 }
1791
1792 static int fruit_close_meta(vfs_handle_struct *handle,
1793 files_struct *fsp)
1794 {
1795 int ret;
1796 struct fruit_config_data *config = NULL;
1797
1798 SMB_VFS_HANDLE_GET_DATA(handle, config,
1799 struct fruit_config_data, return -1);
1800
1801 switch (config->meta) {
1802 case FRUIT_META_STREAM:
1803 {
1804 struct fio *fio = fruit_get_complete_fio(handle, fsp);
1805 if (fio == NULL) {
1806 return -1;
1807 }
1808 if (fio->fake_fd) {
1809 ret = vfs_fake_fd_close(fsp_get_pathref_fd(fsp));
1810 fsp_set_fd(fsp, -1);
1811 } else {
1812 ret = SMB_VFS_NEXT_CLOSE(handle, fsp);
1813 }
1814 break;
1815 }
1816 case FRUIT_META_NETATALK:
1817 ret = vfs_fake_fd_close(fsp_get_pathref_fd(fsp));
1818 fsp_set_fd(fsp, -1);
1819 break;
1820
1821 default:
1822 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
1823 return -1;
1824 }
1825
1826 return ret;
1827 }
1828
1829
1830 static int fruit_close_rsrc(vfs_handle_struct *handle,
1831 files_struct *fsp)
1832 {
1833 int ret;
1834 struct fruit_config_data *config = NULL;
1835
1836 SMB_VFS_HANDLE_GET_DATA(handle, config,
1837 struct fruit_config_data, return -1);
1838
1839 switch (config->rsrc) {
1840 case FRUIT_RSRC_STREAM:
1841 ret = SMB_VFS_NEXT_CLOSE(handle, fsp);
1842 break;
1843
1844 case FRUIT_RSRC_ADFILE:
1845 {
1846 struct fio *fio = fruit_get_complete_fio(handle, fsp);
1847 if (fio == NULL) {
1848 return -1;
1849 }
1850 fio_close_ad_fsp(fio);
1851 ret = vfs_fake_fd_close(fsp_get_pathref_fd(fsp));
1852 fsp_set_fd(fsp, -1);
1853 break;
1854 }
1855
1856 case FRUIT_RSRC_XATTR:
1857 ret = vfs_fake_fd_close(fsp_get_pathref_fd(fsp));
1858 fsp_set_fd(fsp, -1);
1859 break;
1860
1861 default:
1862 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
1863 return -1;
1864 }
1865
1866 return ret;
1867 }
1868
1869 static int fruit_close(vfs_handle_struct *handle,
1870 files_struct *fsp)
1871 {
1872 int ret;
1873 int fd;
1874
1875 fd = fsp_get_pathref_fd(fsp);
1876
1877 DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(fsp->fsp_name), fd);
1878
1879 if (!fsp_is_alternate_stream(fsp)) {
1880 return SMB_VFS_NEXT_CLOSE(handle, fsp);
1881 }
1882
1883 if (is_afpinfo_stream(fsp->fsp_name->stream_name)) {
1884 ret = fruit_close_meta(handle, fsp);
1885 } else if (is_afpresource_stream(fsp->fsp_name->stream_name)) {
1886 ret = fruit_close_rsrc(handle, fsp);
1887 } else {
1888 ret = SMB_VFS_NEXT_CLOSE(handle, fsp);
1889 }
1890
1891 return ret;
1892 }
1893
1894 static int fruit_renameat(struct vfs_handle_struct *handle,
1895 files_struct *srcfsp,
1896 const struct smb_filename *smb_fname_src,
1897 files_struct *dstfsp,
1898 const struct smb_filename *smb_fname_dst)
1899 {
1900 int rc = -1;
1901 struct fruit_config_data *config = NULL;
1902 struct smb_filename *src_adp_smb_fname = NULL;
1903 struct smb_filename *dst_adp_smb_fname = NULL;
1904
1905 SMB_VFS_HANDLE_GET_DATA(handle, config,
1906 struct fruit_config_data, return -1);
1907
1908 if (!VALID_STAT(smb_fname_src->st)) {
1909 DBG_ERR("Need valid stat for [%s]\n",
1910 smb_fname_str_dbg(smb_fname_src));
1911 return -1;
1912 }
1913
1914 rc = SMB_VFS_NEXT_RENAMEAT(handle,
1915 srcfsp,
1916 smb_fname_src,
1917 dstfsp,
1918 smb_fname_dst);
1919 if (rc != 0) {
1920 return -1;
1921 }
1922
1923 if ((config->rsrc != FRUIT_RSRC_ADFILE) ||
1924 (!S_ISREG(smb_fname_src->st.st_ex_mode)))
1925 {
1926 return 0;
1927 }
1928
1929 rc = adouble_path(talloc_tos(), smb_fname_src, &src_adp_smb_fname);
1930 if (rc != 0) {
1931 goto done;
1932 }
1933
1934 rc = adouble_path(talloc_tos(), smb_fname_dst, &dst_adp_smb_fname);
1935 if (rc != 0) {
1936 goto done;
1937 }
1938
1939 DBG_DEBUG("%s -> %s\n",
1940 smb_fname_str_dbg(src_adp_smb_fname),
1941 smb_fname_str_dbg(dst_adp_smb_fname));
1942
1943 rc = SMB_VFS_NEXT_RENAMEAT(handle,
1944 srcfsp,
1945 src_adp_smb_fname,
1946 dstfsp,
1947 dst_adp_smb_fname);
1948 if (errno == ENOENT) {
1949 rc = 0;
1950 }
1951
1952 done:
1953 TALLOC_FREE(src_adp_smb_fname);
1954 TALLOC_FREE(dst_adp_smb_fname);
1955 return rc;
1956 }
1957
1958 static int fruit_unlink_meta_stream(vfs_handle_struct *handle,
1959 struct files_struct *dirfsp,
1960 const struct smb_filename *smb_fname)
1961 {
1962 return SMB_VFS_NEXT_UNLINKAT(handle,
1963 dirfsp,
1964 smb_fname,
1965 0);
1966 }
1967
1968 static int fruit_unlink_meta_netatalk(vfs_handle_struct *handle,
1969 const struct smb_filename *smb_fname)
1970 {
1971 SMB_ASSERT(smb_fname->fsp != NULL);
1972 SMB_ASSERT(fsp_is_alternate_stream(smb_fname->fsp));
1973 return SMB_VFS_FREMOVEXATTR(smb_fname->fsp->base_fsp,
1974 AFPINFO_EA_NETATALK);
1975 }
1976
1977 static int fruit_unlink_meta(vfs_handle_struct *handle,
1978 struct files_struct *dirfsp,
1979 const struct smb_filename *smb_fname)
1980 {
1981 struct fruit_config_data *config = NULL;
1982 int rc;
1983
1984 SMB_VFS_HANDLE_GET_DATA(handle, config,
1985 struct fruit_config_data, return -1);
1986
1987 switch (config->meta) {
1988 case FRUIT_META_STREAM:
1989 rc = fruit_unlink_meta_stream(handle,
1990 dirfsp,
1991 smb_fname);
1992 break;
1993
1994 case FRUIT_META_NETATALK:
1995 rc = fruit_unlink_meta_netatalk(handle, smb_fname);
1996 break;
1997
1998 default:
1999 DBG_ERR("Unsupported meta config [%d]\n", config->meta);
2000 return -1;
2001 }
2002
2003 return rc;
2004 }
2005
2006 static int fruit_unlink_rsrc_stream(vfs_handle_struct *handle,
2007 struct files_struct *dirfsp,
2008 const struct smb_filename *smb_fname,
2009 bool force_unlink)
2010 {
2011 int ret;
2012
2013 if (!force_unlink) {
2014 struct smb_filename *full_fname = NULL;
2015 off_t size;
2016
2017 /*
2018 * TODO: use SMB_VFS_STATX() once we have it.
2019 */
2020
2021 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
2022 dirfsp,
2023 smb_fname);
2024 if (full_fname == NULL) {
2025 return -1;
2026 }
2027
2028 /*
2029 * 0 byte resource fork streams are not listed by
2030 * vfs_streaminfo, as a result stream cleanup/deletion of file
2031 * deletion doesn't remove the resourcefork stream.
2032 */
2033
2034 ret = SMB_VFS_NEXT_STAT(handle, full_fname);
2035 if (ret != 0) {
2036 TALLOC_FREE(full_fname);
2037 DBG_ERR("stat [%s] failed [%s]\n",
2038 smb_fname_str_dbg(full_fname), strerror(errno));
2039 return -1;
2040 }
2041
2042 size = full_fname->st.st_ex_size;
2043 TALLOC_FREE(full_fname);
2044
2045 if (size > 0) {
2046 /* OS X ignores resource fork stream delete requests */
2047 return 0;
2048 }
2049 }
2050
2051 ret = SMB_VFS_NEXT_UNLINKAT(handle,
2052 dirfsp,
2053 smb_fname,
2054 0);
2055 if ((ret != 0) && (errno == ENOENT) && force_unlink) {
2056 ret = 0;
2057 }
2058
2059 return ret;
2060 }
2061
2062 static int fruit_unlink_rsrc_adouble(vfs_handle_struct *handle,
2063 struct files_struct *dirfsp,
2064 const struct smb_filename *smb_fname,
2065 bool force_unlink)
2066 {
2067 int rc;
2068 struct adouble *ad = NULL;
2069 struct smb_filename *adp_smb_fname = NULL;
2070
2071 if (!force_unlink) {
2072 struct smb_filename *full_fname = NULL;
2073
2074 full_fname = full_path_from_dirfsp_atname(talloc_tos(),
2075 dirfsp,
2076 smb_fname);
2077 if (full_fname == NULL) {
2078 return -1;
2079 }
2080
2081 ad = ad_get(talloc_tos(), handle, full_fname,
2082 ADOUBLE_RSRC);
2083 TALLOC_FREE(full_fname);
2084 if (ad == NULL) {
2085 errno = ENOENT;
2086 return -1;
2087 }
2088
2089
2090 /*
2091 * 0 byte resource fork streams are not listed by
2092 * vfs_streaminfo, as a result stream cleanup/deletion of file
2093 * deletion doesn't remove the resourcefork stream.
2094 */
2095
2096 if (ad_getentrylen(ad, ADEID_RFORK) > 0) {
2097 /* OS X ignores resource fork stream delete requests */
2098 TALLOC_FREE(ad);
2099 return 0;
2100 }
2101
2102 TALLOC_FREE(ad);
2103 }
2104
2105 rc = adouble_path(talloc_tos(), smb_fname, &adp_smb_fname);
2106 if (rc != 0) {
2107 return -1;
2108 }
2109
2110 rc = SMB_VFS_NEXT_UNLINKAT(handle,
2111 dirfsp,
2112 adp_smb_fname,
2113 0);
2114 TALLOC_FREE(adp_smb_fname);
2115 if ((rc != 0) && (errno == ENOENT || errno == ENAMETOOLONG) && force_unlink) {
2116 rc = 0;
2117 }
2118
2119 return rc;
2120 }
2121
2122 static int fruit_unlink_rsrc_xattr(vfs_handle_struct *handle,
2123 const struct smb_filename *smb_fname,
2124 bool force_unlink)
2125 {
2126 /*
2127 * OS X ignores resource fork stream delete requests, so nothing to do
2128 * here. Removing the file will remove the xattr anyway, so we don't
2129 * have to take care of removing 0 byte resource forks that could be
2130 * left behind.
2131 */
2132 return 0;
2133 }
2134
2135 static int fruit_unlink_rsrc(vfs_handle_struct *handle,
2136 struct files_struct *dirfsp,
2137 const struct smb_filename *smb_fname,
2138 bool force_unlink)
2139 {
2140 struct fruit_config_data *config = NULL;
2141 int rc;
2142
2143 SMB_VFS_HANDLE_GET_DATA(handle, config,
2144 struct fruit_config_data, return -1);
2145
2146 switch (config->rsrc) {
2147 case FRUIT_RSRC_STREAM:
2148 rc = fruit_unlink_rsrc_stream(handle,
2149 dirfsp,
2150 smb_fname,
2151 force_unlink);
2152 break;
2153
2154 case FRUIT_RSRC_ADFILE:
2155 rc = fruit_unlink_rsrc_adouble(handle,
2156 dirfsp,
2157 smb_fname,
2158 force_unlink);
2159 break;
2160
2161 case FRUIT_RSRC_XATTR:
2162 rc = fruit_unlink_rsrc_xattr(handle, smb_fname, force_unlink);
2163 break;
2164
2165 default:
2166 DBG_ERR("Unsupported rsrc config [%d]\n", config->rsrc);
2167 return -1;
2168 }
2169
2170 return rc;
2171 }
2172
2173 static int fruit_fchmod(vfs_handle_struct *handle,
2174 struct files_struct *fsp,
2175 mode_t mode)
2176 {
2177 int rc = -1;
2178 struct fruit_config_data *config = NULL;
2179 struct smb_filename *smb_fname_adp = NULL;
2180 const struct smb_filename *smb_fname = NULL;
2181 NTSTATUS status;
2182
2183 rc = SMB_VFS_NEXT_FCHMOD(handle, fsp, mode);
2184 if (rc != 0) {
2185 return rc;
2186 }
2187
2188 smb_fname = fsp->fsp_name;
2189 SMB_VFS_HANDLE_GET_DATA(handle, config,
2190 struct fruit_config_data, return -1);
2191
2192 if (config->rsrc != FRUIT_RSRC_ADFILE) {
2193 return 0;
2194 }
2195
2196 if (!VALID_STAT(smb_fname->st)) {
2197 return 0;
2198 }
2199
2200 if (!S_ISREG(smb_fname->st.st_ex_mode)) {
2201 return 0;
2202 }
2203
2204 rc = adouble_path(talloc_tos(), smb_fname, &smb_fname_adp);
2205 if (rc != 0) {
2206 return -1;
2207 }
2208
2209 status = openat_pathref_fsp(handle->conn->cwd_fsp,
2210 smb_fname_adp);
2211 if (!NT_STATUS_IS_OK(status)) {
2212 /* detect ENOENT (mapped to OBJECT_NAME_NOT_FOUND) */
2213 if (NT_STATUS_EQUAL(status,
2214 NT_STATUS_OBJECT_NAME_NOT_FOUND)){
2215 rc = 0;
2216 goto out;
2217 }
2218 rc = -1;
2219 goto out;
2220 }
2221
2222 DBG_DEBUG("%s\n", smb_fname_adp->base_name);
2223
2224 rc = SMB_VFS_NEXT_FCHMOD(handle, smb_fname_adp->fsp, mode);
2225 if (errno == ENOENT) {
2226 rc = 0;
2227 }
2228 out:
2229 TALLOC_FREE(smb_fname_adp);
2230 return rc;
2231 }
2232
2233 static int fruit_unlinkat(vfs_handle_struct *handle,
2234 struct files_struct *dirfsp,
2235 const struct smb_filename *smb_fname,
2236 int flags)
2237 {
2238 struct fruit_config_data *config = NULL;
2239 struct smb_filename *rsrc_smb_fname = NULL;
2240 int ret;
2241
2242 if (flags & AT_REMOVEDIR) {
2243 return SMB_VFS_NEXT_UNLINKAT(handle,
2244 dirfsp,
2245 smb_fname,
2246 AT_REMOVEDIR);
2247 }
2248
2249 SMB_VFS_HANDLE_GET_DATA(handle, config,
2250 struct fruit_config_data, return -1);
2251
2252 if (is_afpinfo_stream(smb_fname->stream_name)) {
2253 return fruit_unlink_meta(handle,
2254 dirfsp,
2255 smb_fname);
2256 } else if (is_afpresource_stream(smb_fname->stream_name)) {
2257 return fruit_unlink_rsrc(handle,
2258 dirfsp,
2259 smb_fname,
2260 false);
2261 } else if (is_named_stream(smb_fname)) {
2262 return SMB_VFS_NEXT_UNLINKAT(handle,
2263 dirfsp,
2264 smb_fname,
2265 0);
2266 } else if (is_adouble_file(smb_fname->base_name)) {
2267 return SMB_VFS_NEXT_UNLINKAT(handle,
2268 dirfsp,
2269 smb_fname,
2270 0);
2271 }
2272
2273 /*
2274 * A request to delete the base file. Because 0 byte resource
2275 * fork streams are not listed by fruit_streaminfo,
2276 * delete_all_streams() can't remove 0 byte resource fork
2277 * streams, so we have to cleanup this here.
2278 */
2279 rsrc_smb_fname = synthetic_smb_fname(talloc_tos(),
2280 smb_fname->base_name,
2281 AFPRESOURCE_STREAM_NAME,
2282 NULL,
2283 smb_fname->twrp,
2284 smb_fname->flags);
2285 if (rsrc_smb_fname == NULL) {
2286 return -1;
2287 }
2288
2289 ret = fruit_unlink_rsrc(handle, dirfsp, rsrc_smb_fname, true);
2290 if ((ret != 0) && (errno != ENOENT)) {
2291 DBG_ERR("Forced unlink of [%s] failed [%s]\n",
2292 smb_fname_str_dbg(rsrc_smb_fname), strerror(errno));
2293 TALLOC_FREE(rsrc_smb_fname);
2294 return -1;
2295 }
2296 TALLOC_FREE(rsrc_smb_fname);
2297
2298 return SMB_VFS_NEXT_UNLINKAT(handle,
2299 dirfsp,
2300 smb_fname,
2301 0);
2302 }
2303
2304 static ssize_t fruit_pread_meta_stream(vfs_handle_struct *handle,
2305 files_struct *fsp, void *data,
2306 size_t n, off_t offset)
2307 {
2308 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2309 ssize_t nread;
2310 int ret;
2311
2312 if ((fio == NULL) || fio->fake_fd) {
2313 return -1;
2314 }
2315
2316 nread = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2317 if (nread == -1 || nread == n) {
2318 return nread;
2319 }
2320
2321 DBG_ERR("Removing [%s] after short read [%zd]\n",
2322 fsp_str_dbg(fsp), nread);
2323
2324 ret = SMB_VFS_NEXT_UNLINKAT(handle,
2325 fsp->conn->cwd_fsp,
2326 fsp->fsp_name,
2327 0);
2328 if (ret != 0) {
2329 DBG_ERR("Removing [%s] failed\n", fsp_str_dbg(fsp));
2330 return -1;
2331 }
2332
2333 errno = EINVAL;
2334 return -1;
2335 }
2336
2337 static ssize_t fruit_pread_meta_adouble(vfs_handle_struct *handle,
2338 files_struct *fsp, void *data,
2339 size_t n, off_t offset)
2340 {
2341 AfpInfo *ai = NULL;
2342 struct adouble *ad = NULL;
2343 char afpinfo_buf[AFP_INFO_SIZE];
2344 char *p = NULL;
2345 ssize_t nread;
2346
2347 ai = afpinfo_new(talloc_tos());
2348 if (ai == NULL) {
2349 return -1;
2350 }
2351
2352 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_META);
2353 if (ad == NULL) {
2354 nread = -1;
2355 goto fail;
2356 }
2357
2358 p = ad_get_entry(ad, ADEID_FINDERI);
2359 if (p == NULL) {
2360 DBG_ERR("No ADEID_FINDERI for [%s]\n", fsp_str_dbg(fsp));
2361 nread = -1;
2362 goto fail;
2363 }
2364
2365 memcpy(&ai->afpi_FinderInfo[0], p, ADEDLEN_FINDERI);
2366
2367 nread = afpinfo_pack(ai, afpinfo_buf);
2368 if (nread != AFP_INFO_SIZE) {
2369 nread = -1;
2370 goto fail;
2371 }
2372
2373 memcpy(data, afpinfo_buf, n);
2374 nread = n;
2375
2376 fail:
2377 TALLOC_FREE(ai);
2378 return nread;
2379 }
2380
2381 static ssize_t fruit_pread_meta(vfs_handle_struct *handle,
2382 files_struct *fsp, void *data,
2383 size_t n, off_t offset)
2384 {
2385 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2386 ssize_t nread;
2387 ssize_t to_return;
2388
2389 /*
2390 * OS X has a off-by-1 error in the offset calculation, so we're
2391 * bug compatible here. It won't hurt, as any relevant real
2392 * world read requests from the AFP_AfpInfo stream will be
2393 * offset=0 n=60. offset is ignored anyway, see below.
2394 */
2395 if ((offset < 0) || (offset >= AFP_INFO_SIZE + 1)) {
2396 return 0;
2397 }
2398
2399 if (fio == NULL) {
2400 DBG_ERR("Failed to fetch fsp extension\n");
2401 return -1;
2402 }
2403
2404 /* Yes, macOS always reads from offset 0 */
2405 offset = 0;
2406 to_return = MIN(n, AFP_INFO_SIZE);
2407
2408 switch (fio->config->meta) {
2409 case FRUIT_META_STREAM:
2410 nread = fruit_pread_meta_stream(handle, fsp, data,
2411 to_return, offset);
2412 break;
2413
2414 case FRUIT_META_NETATALK:
2415 nread = fruit_pread_meta_adouble(handle, fsp, data,
2416 to_return, offset);
2417 break;
2418
2419 default:
2420 DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
2421 return -1;
2422 }
2423
2424 if (nread == -1 && fio->fake_fd) {
2425 AfpInfo *ai = NULL;
2426 char afpinfo_buf[AFP_INFO_SIZE];
2427
2428 ai = afpinfo_new(talloc_tos());
2429 if (ai == NULL) {
2430 return -1;
2431 }
2432
2433 nread = afpinfo_pack(ai, afpinfo_buf);
2434 TALLOC_FREE(ai);
2435 if (nread != AFP_INFO_SIZE) {
2436 return -1;
2437 }
2438
2439 memcpy(data, afpinfo_buf, to_return);
2440 return to_return;
2441 }
2442
2443 return nread;
2444 }
2445
2446 static ssize_t fruit_pread_rsrc_stream(vfs_handle_struct *handle,
2447 files_struct *fsp, void *data,
2448 size_t n, off_t offset)
2449 {
2450 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2451 }
2452
2453 static ssize_t fruit_pread_rsrc_xattr(vfs_handle_struct *handle,
2454 files_struct *fsp, void *data,
2455 size_t n, off_t offset)
2456 {
2457 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2458 }
2459
2460 static ssize_t fruit_pread_rsrc_adouble(vfs_handle_struct *handle,
2461 files_struct *fsp, void *data,
2462 size_t n, off_t offset)
2463 {
2464 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2465 struct adouble *ad = NULL;
2466 ssize_t nread;
2467
2468 if (fio == NULL || fio->ad_fsp == NULL) {
2469 DBG_ERR("fio/ad_fsp=NULL for [%s]\n", fsp_str_dbg(fsp));
2470 errno = EBADF;
2471 return -1;
2472 }
2473
2474 ad = ad_fget(talloc_tos(), handle, fio->ad_fsp, ADOUBLE_RSRC);
2475 if (ad == NULL) {
2476 DBG_ERR("ad_fget [%s] failed [%s]\n",
2477 fsp_str_dbg(fio->ad_fsp), strerror(errno));
2478 return -1;
2479 }
2480
2481 nread = SMB_VFS_NEXT_PREAD(handle, fio->ad_fsp, data, n,
2482 offset + ad_getentryoff(ad, ADEID_RFORK));
2483
2484 TALLOC_FREE(ad);
2485 return nread;
2486 }
2487
2488 static ssize_t fruit_pread_rsrc(vfs_handle_struct *handle,
2489 files_struct *fsp, void *data,
2490 size_t n, off_t offset)
2491 {
2492 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2493 ssize_t nread;
2494
2495 if (fio == NULL) {
2496 errno = EINVAL;
2497 return -1;
2498 }
2499
2500 switch (fio->config->rsrc) {
2501 case FRUIT_RSRC_STREAM:
2502 nread = fruit_pread_rsrc_stream(handle, fsp, data, n, offset);
2503 break;
2504
2505 case FRUIT_RSRC_ADFILE:
2506 nread = fruit_pread_rsrc_adouble(handle, fsp, data, n, offset);
2507 break;
2508
2509 case FRUIT_RSRC_XATTR:
2510 nread = fruit_pread_rsrc_xattr(handle, fsp, data, n, offset);
2511 break;
2512
2513 default:
2514 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
2515 return -1;
2516 }
2517
2518 return nread;
2519 }
2520
2521 static ssize_t fruit_pread(vfs_handle_struct *handle,
2522 files_struct *fsp, void *data,
2523 size_t n, off_t offset)
2524 {
2525 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2526 ssize_t nread;
2527
2528 DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
2529 fsp_str_dbg(fsp), (intmax_t)offset, n);
2530
2531 if (fio == NULL) {
2532 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2533 }
2534
2535 if (fio->type == ADOUBLE_META) {
2536 nread = fruit_pread_meta(handle, fsp, data, n, offset);
2537 } else {
2538 nread = fruit_pread_rsrc(handle, fsp, data, n, offset);
2539 }
2540
2541 DBG_DEBUG("Path [%s] nread [%zd]\n", fsp_str_dbg(fsp), nread);
2542 return nread;
2543 }
2544
2545 static bool fruit_must_handle_aio_stream(struct fio *fio)
2546 {
2547 if (fio == NULL) {
2548 return false;
2549 };
2550
2551 if (fio->type == ADOUBLE_META) {
2552 return true;
2553 }
2554
2555 if ((fio->type == ADOUBLE_RSRC) &&
2556 (fio->config->rsrc == FRUIT_RSRC_ADFILE))
2557 {
2558 return true;
2559 }
2560
2561 return false;
2562 }
2563
2564 struct fruit_pread_state {
2565 ssize_t nread;
2566 struct vfs_aio_state vfs_aio_state;
2567 };
2568
2569 static void fruit_pread_done(struct tevent_req *subreq);
2570
2571 static struct tevent_req *fruit_pread_send(
2572 struct vfs_handle_struct *handle,
2573 TALLOC_CTX *mem_ctx,
2574 struct tevent_context *ev,
2575 struct files_struct *fsp,
2576 void *data,
2577 size_t n, off_t offset)
2578 {
2579 struct tevent_req *req = NULL;
2580 struct tevent_req *subreq = NULL;
2581 struct fruit_pread_state *state = NULL;
2582 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2583
2584 req = tevent_req_create(mem_ctx, &state,
2585 struct fruit_pread_state);
2586 if (req == NULL) {
2587 return NULL;
2588 }
2589
2590 if (fruit_must_handle_aio_stream(fio)) {
2591 state->nread = SMB_VFS_PREAD(fsp, data, n, offset);
2592 if (state->nread != n) {
2593 if (state->nread != -1) {
2594 errno = EIO;
2595 }
2596 tevent_req_error(req, errno);
2597 return tevent_req_post(req, ev);
2598 }
2599 tevent_req_done(req);
2600 return tevent_req_post(req, ev);
2601 }
2602
2603 subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp,
2604 data, n, offset);
2605 if (tevent_req_nomem(req, subreq)) {
2606 return tevent_req_post(req, ev);
2607 }
2608 tevent_req_set_callback(subreq, fruit_pread_done, req);
2609 return req;
2610 }
2611
2612 static void fruit_pread_done(struct tevent_req *subreq)
2613 {
2614 struct tevent_req *req = tevent_req_callback_data(
2615 subreq, struct tevent_req);
2616 struct fruit_pread_state *state = tevent_req_data(
2617 req, struct fruit_pread_state);
2618
2619 state->nread = SMB_VFS_PREAD_RECV(subreq, &state->vfs_aio_state);
2620 TALLOC_FREE(subreq);
2621
2622 if (tevent_req_error(req, state->vfs_aio_state.error)) {
2623 return;
2624 }
2625 tevent_req_done(req);
2626 }
2627
2628 static ssize_t fruit_pread_recv(struct tevent_req *req,
2629 struct vfs_aio_state *vfs_aio_state)
2630 {
2631 struct fruit_pread_state *state = tevent_req_data(
2632 req, struct fruit_pread_state);
2633 ssize_t retval = -1;
2634
2635 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
2636 tevent_req_received(req);
2637 return -1;
2638 }
2639
2640 *vfs_aio_state = state->vfs_aio_state;
2641 retval = state->nread;
2642 tevent_req_received(req);
2643 return retval;
2644 }
2645
2646 static ssize_t fruit_pwrite_meta_stream(vfs_handle_struct *handle,
2647 files_struct *fsp, const void *indata,
2648 size_t n, off_t offset)
2649 {
2650 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2651 const void *data = indata;
2652 char afpinfo_buf[AFP_INFO_SIZE];
2653 AfpInfo *ai = NULL;
2654 size_t nwritten;
2655 int ret;
2656 bool ok;
2657
2658 DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
2659 fsp_str_dbg(fsp), (intmax_t)offset, n);
2660
2661 if (fio == NULL) {
2662 return -1;
2663 }
2664
2665 if (fio->fake_fd) {
2666 struct vfs_open_how how = {
2667 .flags = fio->flags, .mode = fio->mode,
2668 };
2669 int fd = fsp_get_pathref_fd(fsp);
2670
2671 ret = vfs_fake_fd_close(fd);
2672 fsp_set_fd(fsp, -1);
2673 if (ret != 0) {
2674 DBG_ERR("Close [%s] failed: %s\n",
2675 fsp_str_dbg(fsp), strerror(errno));
2676 return -1;
2677 }
2678
2679 fd = SMB_VFS_NEXT_OPENAT(handle,
2680 NULL, /* opening a stream */
2681 fsp->fsp_name,
2682 fsp,
2683 &how);
2684 if (fd == -1) {
2685 DBG_ERR("On-demand create [%s] in write failed: %s\n",
2686 fsp_str_dbg(fsp), strerror(errno));
2687 return -1;
2688 }
2689 fsp_set_fd(fsp, fd);
2690 fio->fake_fd = false;
2691 }
2692
2693 ai = afpinfo_unpack(talloc_tos(), data, fio->config->validate_afpinfo);
2694 if (ai == NULL) {
2695 return -1;
2696 }
2697
2698 if (ai_empty_finderinfo(ai)) {
2699 /*
2700 * Writing an all 0 blob to the metadata stream results in the
2701 * stream being removed on a macOS server. This ensures we
2702 * behave the same and it verified by the "delete AFP_AfpInfo by
2703 * writing all 0" test.
2704 */
2705 ret = SMB_VFS_NEXT_FTRUNCATE(handle, fsp, 0);
2706 if (ret != 0) {
2707 DBG_ERR("SMB_VFS_NEXT_FTRUNCATE on [%s] failed\n",
2708 fsp_str_dbg(fsp));
2709 return -1;
2710 }
2711
2712 ok = set_delete_on_close(
2713 fsp,
2714 true,
2715 handle->conn->session_info->security_token,
2716 handle->conn->session_info->unix_token);
2717 if (!ok) {
2718 DBG_ERR("set_delete_on_close on [%s] failed\n",
2719 fsp_str_dbg(fsp));
2720 return -1;
2721 }
2722 return n;
2723 }
2724
2725 if (!fio->config->validate_afpinfo) {
2726 /*
2727 * Ensure the buffer contains a valid header, so marshall
2728 * the data from the afpinfo struck back into a buffer
2729 * and write that instead of the possibly malformed data
2730 * we got from the client.
2731 */
2732 nwritten = afpinfo_pack(ai, afpinfo_buf);
2733 if (nwritten != AFP_INFO_SIZE) {
2734 errno = EINVAL;
2735 return -1;
2736 }
2737 data = afpinfo_buf;
2738 }
2739
2740 nwritten = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2741 if (nwritten != n) {
2742 return -1;
2743 }
2744
2745 return n;
2746 }
2747
2748 static ssize_t fruit_pwrite_meta_netatalk(vfs_handle_struct *handle,
2749 files_struct *fsp, const void *data,
2750 size_t n, off_t offset)
2751 {
2752 struct fruit_config_data *config = NULL;
2753 struct adouble *ad = NULL;
2754 AfpInfo *ai = NULL;
2755 char *p = NULL;
2756 int ret;
2757 bool ok;
2758
2759 SMB_VFS_HANDLE_GET_DATA(handle, config,
2760 struct fruit_config_data, return -1);
2761
2762 ai = afpinfo_unpack(talloc_tos(), data, config->validate_afpinfo);
2763 if (ai == NULL) {
2764 return -1;
2765 }
2766
2767 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_META);
2768 if (ad == NULL) {
2769 ad = ad_init(talloc_tos(), ADOUBLE_META);
2770 if (ad == NULL) {
2771 return -1;
2772 }
2773 }
2774 p = ad_get_entry(ad, ADEID_FINDERI);
2775 if (p == NULL) {
2776 DBG_ERR("No ADEID_FINDERI for [%s]\n", fsp_str_dbg(fsp));
2777 TALLOC_FREE(ad);
2778 return -1;
2779 }
2780
2781 memcpy(p, &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
2782
2783 ret = ad_fset(handle, ad, fsp);
2784 if (ret != 0) {
2785 DBG_ERR("ad_pwrite [%s] failed\n", fsp_str_dbg(fsp));
2786 TALLOC_FREE(ad);
2787 return -1;
2788 }
2789
2790 TALLOC_FREE(ad);
2791
2792 if (!ai_empty_finderinfo(ai)) {
2793 return n;
2794 }
2795
2796 /*
2797 * Writing an all 0 blob to the metadata stream results in the stream
2798 * being removed on a macOS server. This ensures we behave the same and
2799 * it verified by the "delete AFP_AfpInfo by writing all 0" test.
2800 */
2801
2802 ok = set_delete_on_close(
2803 fsp,
2804 true,
2805 handle->conn->session_info->security_token,
2806 handle->conn->session_info->unix_token);
2807 if (!ok) {
2808 DBG_ERR("set_delete_on_close on [%s] failed\n",
2809 fsp_str_dbg(fsp));
2810 return -1;
2811 }
2812
2813 return n;
2814 }
2815
2816 static ssize_t fruit_pwrite_meta(vfs_handle_struct *handle,
2817 files_struct *fsp, const void *data,
2818 size_t n, off_t offset)
2819 {
2820 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2821 ssize_t nwritten;
2822 uint8_t buf[AFP_INFO_SIZE];
2823 size_t to_write;
2824 size_t to_copy;
2825 int cmp;
2826
2827 if (fio == NULL) {
2828 DBG_ERR("Failed to fetch fsp extension\n");
2829 return -1;
2830 }
2831
2832 if (n < 3) {
2833 errno = EINVAL;
2834 return -1;
2835 }
2836
2837 if (offset != 0 && n < 60) {
2838 errno = EINVAL;
2839 return -1;
2840 }
2841
2842 if (fio->config->validate_afpinfo) {
2843 cmp = memcmp(data, "AFP", 3);
2844 if (cmp != 0) {
2845 errno = EINVAL;
2846 return -1;
2847 }
2848 }
2849
2850 if (n <= AFP_OFF_FinderInfo) {
2851 /*
2852 * Nothing to do here really, just return
2853 */
2854 return n;
2855 }
2856
2857 offset = 0;
2858
2859 to_copy = n;
2860 if (to_copy > AFP_INFO_SIZE) {
2861 to_copy = AFP_INFO_SIZE;
2862 }
2863 memcpy(buf, data, to_copy);
2864
2865 to_write = n;
2866 if (to_write != AFP_INFO_SIZE) {
2867 to_write = AFP_INFO_SIZE;
2868 }
2869
2870 switch (fio->config->meta) {
2871 case FRUIT_META_STREAM:
2872 nwritten = fruit_pwrite_meta_stream(handle,
2873 fsp,
2874 buf,
2875 to_write,
2876 offset);
2877 break;
2878
2879 case FRUIT_META_NETATALK:
2880 nwritten = fruit_pwrite_meta_netatalk(handle,
2881 fsp,
2882 buf,
2883 to_write,
2884 offset);
2885 break;
2886
2887 default:
2888 DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
2889 return -1;
2890 }
2891
2892 if (nwritten != to_write) {
2893 return -1;
2894 }
2895
2896 /*
2897 * Return the requested amount, verified against macOS SMB server
2898 */
2899 return n;
2900 }
2901
2902 static ssize_t fruit_pwrite_rsrc_stream(vfs_handle_struct *handle,
2903 files_struct *fsp, const void *data,
2904 size_t n, off_t offset)
2905 {
2906 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2907 }
2908
2909 static ssize_t fruit_pwrite_rsrc_xattr(vfs_handle_struct *handle,
2910 files_struct *fsp, const void *data,
2911 size_t n, off_t offset)
2912 {
2913 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2914 }
2915
2916 static ssize_t fruit_pwrite_rsrc_adouble(vfs_handle_struct *handle,
2917 files_struct *fsp, const void *data,
2918 size_t n, off_t offset)
2919 {
2920 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2921 struct adouble *ad = NULL;
2922 ssize_t nwritten;
2923 int ret;
2924
2925 if (fio == NULL || fio->ad_fsp == NULL) {
2926 DBG_ERR("fio/ad_fsp=NULL for [%s]\n", fsp_str_dbg(fsp));
2927 errno = EBADF;
2928 return -1;
2929 }
2930
2931 ad = ad_fget(talloc_tos(), handle, fio->ad_fsp, ADOUBLE_RSRC);
2932 if (ad == NULL) {
2933 DBG_ERR("ad_fget [%s] failed [%s]\n",
2934 fsp_str_dbg(fio->ad_fsp), strerror(errno));
2935 return -1;
2936 }
2937
2938 nwritten = SMB_VFS_NEXT_PWRITE(handle, fio->ad_fsp, data, n,
2939 offset + ad_getentryoff(ad, ADEID_RFORK));
2940 if (nwritten != n) {
2941 DBG_ERR("Short write on [%s] [%zd/%zd]\n",
2942 fsp_str_dbg(fio->ad_fsp), nwritten, n);
2943 TALLOC_FREE(ad);
2944 return -1;
2945 }
2946
2947 if ((n + offset) > ad_getentrylen(ad, ADEID_RFORK)) {
2948 ad_setentrylen(ad, ADEID_RFORK, n + offset);
2949 ret = ad_fset(handle, ad, fio->ad_fsp);
2950 if (ret != 0) {
2951 DBG_ERR("ad_pwrite [%s] failed\n", fsp_str_dbg(fio->ad_fsp));
2952 TALLOC_FREE(ad);
2953 return -1;
2954 }
2955 }
2956
2957 TALLOC_FREE(ad);
2958 return n;
2959 }
2960
2961 static ssize_t fruit_pwrite_rsrc(vfs_handle_struct *handle,
2962 files_struct *fsp, const void *data,
2963 size_t n, off_t offset)
2964 {
2965 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2966 ssize_t nwritten;
2967
2968 if (fio == NULL) {
2969 DBG_ERR("Failed to fetch fsp extension\n");
2970 return -1;
2971 }
2972
2973 switch (fio->config->rsrc) {
2974 case FRUIT_RSRC_STREAM:
2975 nwritten = fruit_pwrite_rsrc_stream(handle, fsp, data, n, offset);
2976 break;
2977
2978 case FRUIT_RSRC_ADFILE:
2979 nwritten = fruit_pwrite_rsrc_adouble(handle, fsp, data, n, offset);
2980 break;
2981
2982 case FRUIT_RSRC_XATTR:
2983 nwritten = fruit_pwrite_rsrc_xattr(handle, fsp, data, n, offset);
2984 break;
2985
2986 default:
2987 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
2988 return -1;
2989 }
2990
2991 return nwritten;
2992 }
2993
2994 static ssize_t fruit_pwrite(vfs_handle_struct *handle,
2995 files_struct *fsp, const void *data,
2996 size_t n, off_t offset)
2997 {
2998 struct fio *fio = fruit_get_complete_fio(handle, fsp);
2999 ssize_t nwritten;
3000
3001 DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
3002 fsp_str_dbg(fsp), (intmax_t)offset, n);
3003
3004 if (fio == NULL) {
3005 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
3006 }
3007
3008 if (fio->type == ADOUBLE_META) {
3009 nwritten = fruit_pwrite_meta(handle, fsp, data, n, offset);
3010 } else {
3011 nwritten = fruit_pwrite_rsrc(handle, fsp, data, n, offset);
3012 }
3013
3014 DBG_DEBUG("Path [%s] nwritten=%zd\n", fsp_str_dbg(fsp), nwritten);
3015 return nwritten;
3016 }
3017
3018 struct fruit_pwrite_state {
3019 ssize_t nwritten;
3020 struct vfs_aio_state vfs_aio_state;
3021 };
3022
3023 static void fruit_pwrite_done(struct tevent_req *subreq);
3024
3025 static struct tevent_req *fruit_pwrite_send(
3026 struct vfs_handle_struct *handle,
3027 TALLOC_CTX *mem_ctx,
3028 struct tevent_context *ev,
3029 struct files_struct *fsp,
3030 const void *data,
3031 size_t n, off_t offset)
3032 {
3033 struct tevent_req *req = NULL;
3034 struct tevent_req *subreq = NULL;
3035 struct fruit_pwrite_state *state = NULL;
3036 struct fio *fio = fruit_get_complete_fio(handle, fsp);
3037
3038 req = tevent_req_create(mem_ctx, &state,
3039 struct fruit_pwrite_state);
3040 if (req == NULL) {
3041 return NULL;
3042 }
3043
3044 if (fruit_must_handle_aio_stream(fio)) {
3045 state->nwritten = SMB_VFS_PWRITE(fsp, data, n, offset);
3046 if (state->nwritten != n) {
3047 if (state->nwritten != -1) {
3048 errno = EIO;
3049 }
3050 tevent_req_error(req, errno);
3051 return tevent_req_post(req, ev);
3052 }
3053 tevent_req_done(req);
3054 return tevent_req_post(req, ev);
3055 }
3056
3057 subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp,
3058 data, n, offset);
3059 if (tevent_req_nomem(req, subreq)) {
3060 return tevent_req_post(req, ev);
3061 }
3062 tevent_req_set_callback(subreq, fruit_pwrite_done, req);
3063 return req;
3064 }
3065
3066 static void fruit_pwrite_done(struct tevent_req *subreq)
3067 {
3068 struct tevent_req *req = tevent_req_callback_data(
3069 subreq, struct tevent_req);
3070 struct fruit_pwrite_state *state = tevent_req_data(
3071 req, struct fruit_pwrite_state);
3072
3073 state->nwritten = SMB_VFS_PWRITE_RECV(subreq, &state->vfs_aio_state);
3074 TALLOC_FREE(subreq);
3075
3076 if (tevent_req_error(req, state->vfs_aio_state.error)) {
3077 return;
3078 }
3079 tevent_req_done(req);
3080 }
3081
3082 static ssize_t fruit_pwrite_recv(struct tevent_req *req,
3083 struct vfs_aio_state *vfs_aio_state)
3084 {
3085 struct fruit_pwrite_state *state = tevent_req_data(
3086 req, struct fruit_pwrite_state);
3087 ssize_t retval = -1;
3088
3089 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
3090 tevent_req_received(req);
3091 return -1;
3092 }
3093
3094 *vfs_aio_state = state->vfs_aio_state;
3095 retval = state->nwritten;
3096 tevent_req_received(req);
3097 return retval;
3098 }
3099
3100 struct fruit_fsync_state {
3101 int ret;
3102 struct vfs_aio_state vfs_aio_state;
3103 };
3104
3105 static void fruit_fsync_done(struct tevent_req *subreq);
3106
3107 static struct tevent_req *fruit_fsync_send(
3108 struct vfs_handle_struct *handle,
3109 TALLOC_CTX *mem_ctx,
3110 struct tevent_context *ev,
3111 struct files_struct *fsp)
3112 {
3113 struct tevent_req *req = NULL;
3114 struct tevent_req *subreq = NULL;
3115 struct fruit_fsync_state *state = NULL;
3116 struct fio *fio = fruit_get_complete_fio(handle, fsp);
3117
3118 req = tevent_req_create(mem_ctx, &state,
3119 struct fruit_fsync_state);
3120 if (req == NULL) {
3121 return NULL;
3122 }
3123
3124 if (fruit_must_handle_aio_stream(fio)) {
3125 struct adouble *ad = NULL;
3126
3127 if (fio->type == ADOUBLE_META) {
3128 /*
3129 * We must never pass a fake_fd
3130 * to lower level fsync calls.
3131 * Everything is already done
3132 * synchronously, so just return
3133 * true.
3134 */
3135 SMB_ASSERT(fio->fake_fd);
3136 tevent_req_done(req);
3137 return tevent_req_post(req, ev);
3138 }
3139
3140 /*
3141 * We know the following must be true,
3142 * as it's the condition for fruit_must_handle_aio_stream()
3143 * to return true if fio->type == ADOUBLE_RSRC.
3144 */
3145 SMB_ASSERT(fio->config->rsrc == FRUIT_RSRC_ADFILE);
3146 if (fio->ad_fsp == NULL) {
3147 tevent_req_error(req, EBADF);
3148 return tevent_req_post(req, ev);
3149 }
3150 ad = ad_fget(talloc_tos(), handle, fio->ad_fsp, ADOUBLE_RSRC);
3151 if (ad == NULL) {
3152 tevent_req_error(req, ENOMEM);
3153 return tevent_req_post(req, ev);
3154 }
3155 fsp = fio->ad_fsp;
3156 }
3157
3158 subreq = SMB_VFS_NEXT_FSYNC_SEND(state, ev, handle, fsp);
3159 if (tevent_req_nomem(req, subreq)) {
3160 return tevent_req_post(req, ev);
3161 }
3162 tevent_req_set_callback(subreq, fruit_fsync_done, req);
3163 return req;
3164 }
3165
3166 static void fruit_fsync_done(struct tevent_req *subreq)
3167 {
3168 struct tevent_req *req = tevent_req_callback_data(
3169 subreq, struct tevent_req);
3170 struct fruit_fsync_state *state = tevent_req_data(
3171 req, struct fruit_fsync_state);
3172
3173 state->ret = SMB_VFS_FSYNC_RECV(subreq, &state->vfs_aio_state);
3174 TALLOC_FREE(subreq);
3175 if (state->ret != 0) {
3176 tevent_req_error(req, errno);
3177 return;
3178 }
3179 tevent_req_done(req);
3180 }
3181
3182 static int fruit_fsync_recv(struct tevent_req *req,
3183 struct vfs_aio_state *vfs_aio_state)
3184 {
3185 struct fruit_fsync_state *state = tevent_req_data(
3186 req, struct fruit_fsync_state);
3187 int retval = -1;
3188
3189 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
3190 tevent_req_received(req);
3191 return -1;
3192 }
3193
3194 *vfs_aio_state = state->vfs_aio_state;
3195 retval = state->ret;
3196 tevent_req_received(req);
3197 return retval;
3198 }
3199
3200 /**
3201 * Helper to stat/lstat the base file of an smb_fname.
3202 */
3203 static int fruit_stat_base(vfs_handle_struct *handle,
3204 struct smb_filename *smb_fname,
3205 bool follow_links)
3206 {
3207 char *tmp_stream_name;
3208 int rc;
3209
3210 tmp_stream_name = smb_fname->stream_name;
3211 smb_fname->stream_name = NULL;
3212 if (follow_links) {
3213 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
3214 } else {
3215 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
3216 }
3217 smb_fname->stream_name = tmp_stream_name;
3218
3219 DBG_DEBUG("fruit_stat_base [%s] dev [%ju] ino [%ju]\n",
3220 smb_fname->base_name,
3221 (uintmax_t)smb_fname->st.st_ex_dev,
3222 (uintmax_t)smb_fname->st.st_ex_ino);
3223 return rc;
3224 }
3225
3226 static int fruit_stat_meta_stream(vfs_handle_struct *handle,
3227 struct smb_filename *smb_fname,
3228 bool follow_links)
3229 {
3230 int ret;
3231 ino_t ino;
3232
3233 ret = fruit_stat_base(handle, smb_fname, false);
3234 if (ret != 0) {
3235 return -1;
3236 }
3237
3238 ino = hash_inode(&smb_fname->st, smb_fname->stream_name);
3239
3240 if (follow_links) {
3241 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
3242 } else {
3243 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
3244 }
3245
3246 smb_fname->st.st_ex_ino = ino;
3247
3248 return ret;
3249 }
3250
3251 static int fruit_stat_meta_netatalk(vfs_handle_struct *handle,
3252 struct smb_filename *smb_fname,
3253 bool follow_links)
3254 {
3255 struct adouble *ad = NULL;
3256
3257 /* Populate the stat struct with info from the base file. */
3258 if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
3259 return -1;
3260 }
3261
3262 ad = ad_get_meta_fsp(talloc_tos(), handle, smb_fname);
3263 if (ad == NULL) {
3264 DBG_INFO("fruit_stat_meta %s: %s\n",
3265 smb_fname_str_dbg(smb_fname), strerror(errno));
3266 errno = ENOENT;
3267 return -1;
3268 }
3269 TALLOC_FREE(ad);
3270
3271 smb_fname->st.st_ex_size = AFP_INFO_SIZE;
3272 smb_fname->st.st_ex_ino = hash_inode(&smb_fname->st,
3273 smb_fname->stream_name);
3274 return 0;
3275 }
3276
3277 static int fruit_stat_meta(vfs_handle_struct *handle,
3278 struct smb_filename *smb_fname,
3279 bool follow_links)
3280 {
3281 struct fruit_config_data *config = NULL;
3282 int ret;
3283
3284 SMB_VFS_HANDLE_GET_DATA(handle, config,
3285 struct fruit_config_data, return -1);
3286
3287 switch (config->meta) {
3288 case FRUIT_META_STREAM:
3289 ret = fruit_stat_meta_stream(handle, smb_fname, follow_links);
3290 break;
3291
3292 case FRUIT_META_NETATALK:
3293 ret = fruit_stat_meta_netatalk(handle, smb_fname, follow_links);
3294 break;
3295
3296 default:
3297 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
3298 return -1;
3299 }
3300
3301 return ret;
3302 }
3303
3304 static int fruit_stat_rsrc_netatalk(vfs_handle_struct *handle,
3305 struct smb_filename *smb_fname,
3306 bool follow_links)
3307 {
3308 struct adouble *ad = NULL;
3309 int ret;
3310
3311 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_RSRC);
3312 if (ad == NULL) {
3313 errno = ENOENT;
3314 return -1;
3315 }
3316
3317 /* Populate the stat struct with info from the base file. */
3318 ret = fruit_stat_base(handle, smb_fname, follow_links);
3319 if (ret != 0) {
3320 TALLOC_FREE(ad);
3321 return -1;
3322 }
3323
3324 smb_fname->st.st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
3325 smb_fname->st.st_ex_ino = hash_inode(&smb_fname->st,
3326 smb_fname->stream_name);
3327 TALLOC_FREE(ad);
3328 return 0;
3329 }
3330
3331 static int fruit_stat_rsrc_stream(vfs_handle_struct *handle,
3332 struct smb_filename *smb_fname,
3333 bool follow_links)
3334 {
3335 int ret;
3336
3337 if (follow_links) {
3338 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
3339 } else {
3340 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
3341 }
3342
3343 return ret;
3344 }
3345
3346 static int fruit_stat_rsrc_xattr(vfs_handle_struct *handle,
3347 struct smb_filename *smb_fname,
3348 bool follow_links)
3349 {
3350 #ifdef HAVE_ATTROPEN
3351 int ret;
3352 int fd = -1;
3353
3354 /* Populate the stat struct with info from the base file. */
3355 ret = fruit_stat_base(handle, smb_fname, follow_links);
3356 if (ret != 0) {
3357 return -1;
3358 }
3359
3360 fd = attropen(smb_fname->base_name,
3361 AFPRESOURCE_EA_NETATALK,
3362 O_RDONLY);
3363 if (fd == -1) {
3364 return 0;
3365 }
3366
3367 ret = sys_fstat(fd, &smb_fname->st, false);
3368 if (ret != 0) {
3369 close(fd);
3370 DBG_ERR("fstat [%s:%s] failed\n", smb_fname->base_name,
3371 AFPRESOURCE_EA_NETATALK);
3372 return -1;
3373 }
3374 close(fd);
3375 fd = -1;
3376
3377 smb_fname->st.st_ex_ino = hash_inode(&smb_fname->st,
3378 smb_fname->stream_name);
3379
3380 return ret;
3381
3382 #else
3383 errno = ENOSYS;
3384 return -1;
3385 #endif
3386 }
3387
3388 static int fruit_stat_rsrc(vfs_handle_struct *handle,
3389 struct smb_filename *smb_fname,
3390 bool follow_links)
3391 {
3392 struct fruit_config_data *config = NULL;
3393 int ret;
3394
3395 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
3396
3397 SMB_VFS_HANDLE_GET_DATA(handle, config,
3398 struct fruit_config_data, return -1);
3399
3400 switch (config->rsrc) {
3401 case FRUIT_RSRC_STREAM:
3402 ret = fruit_stat_rsrc_stream(handle, smb_fname, follow_links);
3403 break;
3404
3405 case FRUIT_RSRC_XATTR:
3406 ret = fruit_stat_rsrc_xattr(handle, smb_fname, follow_links);
3407 break;
3408
3409 case FRUIT_RSRC_ADFILE:
3410 ret = fruit_stat_rsrc_netatalk(handle, smb_fname, follow_links);
3411 break;
3412
3413 default:
3414 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
3415 return -1;
3416 }
3417
3418 return ret;
3419 }
3420
3421 static int fruit_stat(vfs_handle_struct *handle,
3422 struct smb_filename *smb_fname)
3423 {
3424 int rc = -1;
3425
3426 DEBUG(10, ("fruit_stat called for %s\n",
3427 smb_fname_str_dbg(smb_fname)));
3428
3429 if (!is_named_stream(smb_fname)) {
3430 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
3431 if (rc == 0) {
3432 update_btime(handle, smb_fname);
3433 }
3434 return rc;
3435 }
3436
3437 /*
3438 * Note if lp_posix_paths() is true, we can never
3439 * get here as is_ntfs_stream_smb_fname() is
3440 * always false. So we never need worry about
3441 * not following links here.
3442 */
3443
3444 if (is_afpinfo_stream(smb_fname->stream_name)) {
3445 rc = fruit_stat_meta(handle, smb_fname, true);
3446 } else if (is_afpresource_stream(smb_fname->stream_name)) {
3447 rc = fruit_stat_rsrc(handle, smb_fname, true);
3448 } else {
3449 return SMB_VFS_NEXT_STAT(handle, smb_fname);
3450 }
3451
3452 if (rc == 0) {
3453 update_btime(handle, smb_fname);
3454 smb_fname->st.st_ex_mode &= ~S_IFMT;
3455 smb_fname->st.st_ex_mode |= S_IFREG;
3456 smb_fname->st.st_ex_blocks =
3457 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
3458 }
3459 return rc;
3460 }
3461
3462 static int fruit_lstat(vfs_handle_struct *handle,
3463 struct smb_filename *smb_fname)
3464 {
3465 int rc = -1;
3466
3467 DEBUG(10, ("fruit_lstat called for %s\n",
3468 smb_fname_str_dbg(smb_fname)));
3469
3470 if (!is_named_stream(smb_fname)) {
3471 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
3472 if (rc == 0) {
3473 update_btime(handle, smb_fname);
3474 }
3475 return rc;
3476 }
3477
3478 if (is_afpinfo_stream(smb_fname->stream_name)) {
3479 rc = fruit_stat_meta(handle, smb_fname, false);
3480 } else if (is_afpresource_stream(smb_fname->stream_name)) {
3481 rc = fruit_stat_rsrc(handle, smb_fname, false);
3482 } else {
3483 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
3484 }
3485
3486 if (rc == 0) {
3487 update_btime(handle, smb_fname);
3488 smb_fname->st.st_ex_mode &= ~S_IFMT;
3489 smb_fname->st.st_ex_mode |= S_IFREG;
3490 smb_fname->st.st_ex_blocks =
3491 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
3492 }
3493 return rc;
3494 }
3495
3496 static int fruit_fstat_meta_stream(vfs_handle_struct *handle,
3497 files_struct *fsp,
3498 SMB_STRUCT_STAT *sbuf)
3499 {
3500 struct fio *fio = fruit_get_complete_fio(handle, fsp);
3501 struct smb_filename smb_fname;
3502 ino_t ino;
3503 int ret;
3504
3505 if (fio == NULL) {
3506 return -1;
3507 }
3508
3509 if (fio->fake_fd) {
3510 ret = fruit_stat_base(handle, fsp->base_fsp->fsp_name, false);
3511 if (ret != 0) {
3512 return -1;
3513 }
3514
3515 *sbuf = fsp->base_fsp->fsp_name->st;
3516 sbuf->st_ex_size = AFP_INFO_SIZE;
3517 sbuf->st_ex_ino = hash_inode(sbuf, fsp->fsp_name->stream_name);
3518 return 0;
3519 }
3520
3521 smb_fname = (struct smb_filename) {
3522 .base_name = fsp->fsp_name->base_name,
3523 .twrp = fsp->fsp_name->twrp,
3524 };
3525
3526 ret = fruit_stat_base(handle, &smb_fname, false);
3527 if (ret != 0) {
3528 return -1;
3529 }
3530 *sbuf = smb_fname.st;
3531
3532 ino = hash_inode(sbuf, fsp->fsp_name->stream_name);
3533
3534 ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
3535 if (ret != 0) {
3536 return -1;
3537 }
3538
3539 sbuf->st_ex_ino = ino;
3540 return 0;
3541 }
3542
3543 static int fruit_fstat_meta_netatalk(vfs_handle_struct *handle,
3544 files_struct *fsp,
3545 SMB_STRUCT_STAT *sbuf)
3546 {
3547 int ret;
3548
3549 ret = fruit_stat_base(handle, fsp->base_fsp->fsp_name, false);
3550 if (ret != 0) {
3551 return -1;
3552 }
3553
3554 *sbuf = fsp->base_fsp->fsp_name->st;
3555 sbuf->st_ex_size = AFP_INFO_SIZE;
3556 sbuf->st_ex_ino = hash_inode(sbuf, fsp->fsp_name->stream_name);
3557
3558 return 0;
3559 }
3560
3561 static int fruit_fstat_meta(vfs_handle_struct *handle,
3562 files_struct *fsp,
3563 SMB_STRUCT_STAT *sbuf,
3564 struct fio *fio)
3565 {
3566 int ret;
3567
3568 DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
3569
3570 switch (fio->config->meta) {
3571 case FRUIT_META_STREAM:
3572 ret = fruit_fstat_meta_stream(handle, fsp, sbuf);
3573 break;
3574
3575 case FRUIT_META_NETATALK:
3576 ret = fruit_fstat_meta_netatalk(handle, fsp, sbuf);
3577 break;
3578
3579 default:
3580 DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
3581 return -1;
3582 }
3583
3584 DBG_DEBUG("Path [%s] ret [%d]\n", fsp_str_dbg(fsp), ret);
3585 return ret;
3586 }
3587
3588 static int fruit_fstat_rsrc_xattr(vfs_handle_struct *handle,
3589 files_struct *fsp,
3590 SMB_STRUCT_STAT *sbuf)
3591 {
3592 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
3593 }
3594
3595 static int fruit_fstat_rsrc_stream(vfs_handle_struct *handle,
3596 files_struct *fsp,
3597 SMB_STRUCT_STAT *sbuf)
3598 {
3599 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
3600 }
3601
3602 static int fruit_fstat_rsrc_adouble(vfs_handle_struct *handle,
3603 files_struct *fsp,
3604 SMB_STRUCT_STAT *sbuf)
3605 {
3606 struct fio *fio = fruit_get_complete_fio(handle, fsp);
3607 struct adouble *ad = NULL;
3608 int ret;
3609
3610 if (fio == NULL || fio->ad_fsp == NULL) {
3611 DBG_ERR("fio/ad_fsp=NULL for [%s]\n", fsp_str_dbg(fsp));
3612 errno = EBADF;
3613 return -1;
3614 }
3615
3616 /* Populate the stat struct with info from the base file. */
3617 ret = fruit_stat_base(handle, fsp->base_fsp->fsp_name, false);
3618 if (ret == -1) {
3619 return -1;
3620 }
3621
3622 ad = ad_fget(talloc_tos(), handle, fio->ad_fsp, ADOUBLE_RSRC);
3623 if (ad == NULL) {
3624 DBG_ERR("ad_fget [%s] failed [%s]\n",
3625 fsp_str_dbg(fio->ad_fsp), strerror(errno));
3626 return -1;
3627 }
3628
3629 *sbuf = fsp->base_fsp->fsp_name->st;
3630 sbuf->st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
3631 sbuf->st_ex_ino = hash_inode(sbuf, fsp->fsp_name->stream_name);
3632
3633 TALLOC_FREE(ad);
3634 return 0;
3635 }
3636
3637 static int fruit_fstat_rsrc(vfs_handle_struct *handle, files_struct *fsp,
3638 SMB_STRUCT_STAT *sbuf, struct fio *fio)
3639 {
3640 int ret;
3641
3642 switch (fio->config->rsrc) {
3643 case FRUIT_RSRC_STREAM:
3644 ret = fruit_fstat_rsrc_stream(handle, fsp, sbuf);
3645 break;
3646
3647 case FRUIT_RSRC_ADFILE:
3648 ret = fruit_fstat_rsrc_adouble(handle, fsp, sbuf);
3649 break;
3650
3651 case FRUIT_RSRC_XATTR:
3652 ret = fruit_fstat_rsrc_xattr(handle, fsp, sbuf);
3653 break;
3654
3655 default:
3656 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
3657 return -1;
3658 }
3659
3660 return ret;
3661 }
3662
3663 static int fruit_fstat(vfs_handle_struct *handle, files_struct *fsp,
3664 SMB_STRUCT_STAT *sbuf)
3665 {
3666 struct fio *fio = fruit_get_complete_fio(handle, fsp);
3667 int rc;
3668
3669 if (fio == NULL) {
3670 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
3671 }
3672
3673 DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
3674
3675 if (fio->type == ADOUBLE_META) {
3676 rc = fruit_fstat_meta(handle, fsp, sbuf, fio);
3677 } else {
3678 rc = fruit_fstat_rsrc(handle, fsp, sbuf, fio);
3679 }
3680
3681 if (rc == 0) {
3682 sbuf->st_ex_mode &= ~S_IFMT;
3683 sbuf->st_ex_mode |= S_IFREG;
3684 sbuf->st_ex_blocks = sbuf->st_ex_size / STAT_ST_BLOCKSIZE + 1;
3685 }
3686
3687 DBG_DEBUG("Path [%s] rc [%d] size [%"PRIdMAX"]\n",
3688 fsp_str_dbg(fsp), rc, (intmax_t)sbuf->st_ex_size);
3689 return rc;
3690 }
3691
3692 static NTSTATUS delete_invalid_meta_stream(
3693 vfs_handle_struct *handle,
3694 const struct smb_filename *smb_fname,
3695 TALLOC_CTX *mem_ctx,
3696 unsigned int *pnum_streams,
3697 struct stream_struct **pstreams,
3698 off_t size)
3699 {
3700 struct smb_filename *sname = NULL;
3701 NTSTATUS status;
3702 int ret;
3703 bool ok;
3704
3705 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams, AFPINFO_STREAM);
3706 if (!ok) {
3707 return NT_STATUS_INTERNAL_ERROR;
3708 }
3709
3710 if (size == 0) {
3711 return NT_STATUS_OK;
3712 }
3713
3714 status = synthetic_pathref(talloc_tos(),
3715 handle->conn->cwd_fsp,
3716 smb_fname->base_name,
3717 AFPINFO_STREAM_NAME,
3718 NULL,
3719 smb_fname->twrp,
3720 0,
3721 &sname);
3722 if (!NT_STATUS_IS_OK(status)) {
3723 return NT_STATUS_NO_MEMORY;
3724 }
3725
3726 ret = SMB_VFS_NEXT_UNLINKAT(handle,
3727 handle->conn->cwd_fsp,
3728 sname,
3729 0);
3730 if (ret != 0) {
3731 DBG_ERR("Removing [%s] failed\n", smb_fname_str_dbg(sname));
3732 TALLOC_FREE(sname);
3733 return map_nt_error_from_unix(errno);
3734 }
3735
3736 TALLOC_FREE(sname);
3737 return NT_STATUS_OK;
3738 }
3739
3740 static NTSTATUS fruit_streaminfo_meta_stream(
3741 vfs_handle_struct *handle,
3742 struct files_struct *fsp,
3743 const struct smb_filename *smb_fname,
3744 TALLOC_CTX *mem_ctx,
3745 unsigned int *pnum_streams,
3746 struct stream_struct **pstreams)
3747 {
3748 struct stream_struct *stream = *pstreams;
3749 unsigned int num_streams = *pnum_streams;
3750 int i;
3751
3752 for (i = 0; i < num_streams; i++) {
3753 if (strequal_m(stream[i].name, AFPINFO_STREAM)) {
3754 break;
3755 }
3756 }
3757
3758 if (i == num_streams) {
3759 return NT_STATUS_OK;
3760 }
3761
3762 if (stream[i].size != AFP_INFO_SIZE) {
3763 DBG_ERR("Removing invalid AFPINFO_STREAM size [%jd] from [%s]\n",
3764 (intmax_t)stream[i].size, smb_fname_str_dbg(smb_fname));
3765
3766 return delete_invalid_meta_stream(handle,
3767 smb_fname,
3768 mem_ctx,
3769 pnum_streams,
3770 pstreams,
3771 stream[i].size);
3772 }
3773
3774
3775 return NT_STATUS_OK;
3776 }
3777
3778 static NTSTATUS fruit_streaminfo_meta_netatalk(
3779 vfs_handle_struct *handle,
3780 struct files_struct *fsp,
3781 const struct smb_filename *smb_fname,
3782 TALLOC_CTX *mem_ctx,
3783 unsigned int *pnum_streams,
3784 struct stream_struct **pstreams)
3785 {
3786 struct stream_struct *stream = *pstreams;
3787 unsigned int num_streams = *pnum_streams;
3788 struct adouble *ad = NULL;
3789 bool is_fi_empty;
3790 int i;
3791 bool ok;
3792
3793 /* Remove the Netatalk xattr from the list */
3794 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
3795 ":" NETATALK_META_XATTR ":$DATA");
3796 if (!ok) {
3797 return NT_STATUS_NO_MEMORY;
3798 }
3799
3800 /*
3801 * Check if there's a AFPINFO_STREAM from the VFS streams
3802 * backend and if yes, remove it from the list
3803 */
3804 for (i = 0; i < num_streams; i++) {
3805 if (strequal_m(stream[i].name, AFPINFO_STREAM)) {
3806 break;
3807 }
3808 }
3809
3810 if (i < num_streams) {
3811 DBG_WARNING("Unexpected AFPINFO_STREAM on [%s]\n",
3812 smb_fname_str_dbg(smb_fname));
3813
3814 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
3815 AFPINFO_STREAM);
3816 if (!ok) {
3817 return NT_STATUS_INTERNAL_ERROR;
3818 }
3819 }
3820
3821 ad = ad_get_meta_fsp(talloc_tos(), handle, smb_fname);
3822 if (ad == NULL) {
3823 return NT_STATUS_OK;
3824 }
3825
3826 is_fi_empty = ad_empty_finderinfo(ad);
3827 TALLOC_FREE(ad);
3828
3829 if (is_fi_empty) {
3830 return NT_STATUS_OK;
3831 }
3832
3833 ok = add_fruit_stream(mem_ctx, pnum_streams, pstreams,
3834 AFPINFO_STREAM_NAME, AFP_INFO_SIZE,
3835 smb_roundup(handle->conn, AFP_INFO_SIZE));
3836 if (!ok) {
3837 return NT_STATUS_NO_MEMORY;
3838 }
3839
3840 return NT_STATUS_OK;
3841 }
3842
3843 static NTSTATUS fruit_streaminfo_meta(vfs_handle_struct *handle,
3844 struct files_struct *fsp,
3845 const struct smb_filename *smb_fname,
3846 TALLOC_CTX *mem_ctx,
3847 unsigned int *pnum_streams,
3848 struct stream_struct **pstreams)
3849 {
3850 struct fruit_config_data *config = NULL;
3851 NTSTATUS status;
3852
3853 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
3854 return NT_STATUS_INTERNAL_ERROR);
3855
3856 switch (config->meta) {
3857 case FRUIT_META_NETATALK:
3858 status = fruit_streaminfo_meta_netatalk(handle, fsp, smb_fname,
3859 mem_ctx, pnum_streams,
3860 pstreams);
3861 break;
3862
3863 case FRUIT_META_STREAM:
3864 status = fruit_streaminfo_meta_stream(handle, fsp, smb_fname,
3865 mem_ctx, pnum_streams,
3866 pstreams);
3867 break;
3868
3869 default:
3870 return NT_STATUS_INTERNAL_ERROR;
3871 }
3872
3873 return status;
3874 }
3875
3876 static NTSTATUS fruit_streaminfo_rsrc_stream(
3877 vfs_handle_struct *handle,
3878 struct files_struct *fsp,
3879 const struct smb_filename *smb_fname,
3880 TALLOC_CTX *mem_ctx,
3881 unsigned int *pnum_streams,
3882 struct stream_struct **pstreams)
3883 {
3884 bool ok;
3885
3886 ok = filter_empty_rsrc_stream(pnum_streams, pstreams);
3887 if (!ok) {
3888 DBG_ERR("Filtering resource stream failed\n");
3889 return NT_STATUS_INTERNAL_ERROR;
3890 }
3891 return NT_STATUS_OK;
3892 }
3893
3894 static NTSTATUS fruit_streaminfo_rsrc_xattr(
3895 vfs_handle_struct *handle,
3896 struct files_struct *fsp,
3897 const struct smb_filename *smb_fname,
3898 TALLOC_CTX *mem_ctx,
3899 unsigned int *pnum_streams,
3900 struct stream_struct **pstreams)
3901 {
3902 bool ok;
3903
3904 ok = filter_empty_rsrc_stream(pnum_streams, pstreams);
3905 if (!ok) {
3906 DBG_ERR("Filtering resource stream failed\n");
3907 return NT_STATUS_INTERNAL_ERROR;
3908 }
3909 return NT_STATUS_OK;
3910 }
3911
3912 static NTSTATUS fruit_streaminfo_rsrc_adouble(
3913 vfs_handle_struct *handle,
3914 struct files_struct *fsp,
3915 const struct smb_filename *smb_fname,
3916 TALLOC_CTX *mem_ctx,
3917 unsigned int *pnum_streams,
3918 struct stream_struct **pstreams)
3919 {
3920 struct stream_struct *stream = *pstreams;
3921 unsigned int num_streams = *pnum_streams;
3922 struct adouble *ad = NULL;
3923 bool ok;
3924 size_t rlen;
3925 int i;
3926
3927 /*
3928 * Check if there's a AFPRESOURCE_STREAM from the VFS streams backend
3929 * and if yes, remove it from the list
3930 */
3931 for (i = 0; i < num_streams; i++) {
3932 if (strequal_m(stream[i].name, AFPRESOURCE_STREAM)) {
3933 break;
3934 }
3935 }
3936
3937 if (i < num_streams) {
3938 DBG_WARNING("Unexpected AFPRESOURCE_STREAM on [%s]\n",
3939 smb_fname_str_dbg(smb_fname));
3940
3941 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
3942 AFPRESOURCE_STREAM);
3943 if (!ok) {
3944 return NT_STATUS_INTERNAL_ERROR;
3945 }
3946 }
3947
3948 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_RSRC);
3949 if (ad == NULL) {
3950 return NT_STATUS_OK;
3951 }
3952
3953 rlen = ad_getentrylen(ad, ADEID_RFORK);
3954 TALLOC_FREE(ad);
3955
3956 if (rlen == 0) {
3957 return NT_STATUS_OK;
3958 }
3959
3960 ok = add_fruit_stream(mem_ctx, pnum_streams, pstreams,
3961 AFPRESOURCE_STREAM_NAME, rlen,
3962 smb_roundup(handle->conn, rlen));
3963 if (!ok) {
3964 return NT_STATUS_NO_MEMORY;
3965 }
3966
3967 return NT_STATUS_OK;
3968 }
3969
3970 static NTSTATUS fruit_streaminfo_rsrc(vfs_handle_struct *handle,
3971 struct files_struct *fsp,
3972 const struct smb_filename *smb_fname,
3973 TALLOC_CTX *mem_ctx,
3974 unsigned int *pnum_streams,
3975 struct stream_struct **pstreams)
3976 {
3977 struct fruit_config_data *config = NULL;
3978 NTSTATUS status;
3979
3980 if (S_ISDIR(smb_fname->st.st_ex_mode)) {
3981 return NT_STATUS_OK;
3982 }
3983
3984 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
3985 return NT_STATUS_INTERNAL_ERROR);
3986
3987 switch (config->rsrc) {
3988 case FRUIT_RSRC_STREAM:
3989 status = fruit_streaminfo_rsrc_stream(handle, fsp, smb_fname,
3990 mem_ctx, pnum_streams,
3991 pstreams);
3992 break;
3993
3994 case FRUIT_RSRC_XATTR:
3995 status = fruit_streaminfo_rsrc_xattr(handle, fsp, smb_fname,
3996 mem_ctx, pnum_streams,
3997 pstreams);
3998 break;
3999
4000 case FRUIT_RSRC_ADFILE:
4001 status = fruit_streaminfo_rsrc_adouble(handle, fsp, smb_fname,
4002 mem_ctx, pnum_streams,
4003 pstreams);
4004 break;
4005
4006 default:
4007 return NT_STATUS_INTERNAL_ERROR;
4008 }
4009
4010 return status;
4011 }
4012
4013 static void fruit_filter_empty_streams(unsigned int *pnum_streams,
4014 struct stream_struct **pstreams)
4015 {
4016 unsigned num_streams = *pnum_streams;
4017 struct stream_struct *streams = *pstreams;
4018 unsigned i = 0;
4019
4020 if (!global_fruit_config.nego_aapl) {
4021 return;
4022 }
4023
4024 while (i < num_streams) {
4025 struct smb_filename smb_fname = (struct smb_filename) {
4026 .stream_name = streams[i].name,
4027 };
4028
4029 if (is_ntfs_default_stream_smb_fname(&smb_fname)
4030 || streams[i].size > 0)
4031 {
4032 i++;
4033 continue;
4034 }
4035
4036 streams[i] = streams[num_streams - 1];
4037 num_streams--;
4038 }
4039
4040 *pnum_streams = num_streams;
4041 }
4042
4043 static NTSTATUS fruit_fstreaminfo(vfs_handle_struct *handle,
4044 struct files_struct *fsp,
4045 TALLOC_CTX *mem_ctx,
4046 unsigned int *pnum_streams,
4047 struct stream_struct **pstreams)
4048 {
4049 struct fruit_config_data *config = NULL;
4050 const struct smb_filename *smb_fname = NULL;
4051 NTSTATUS status;
4052
4053 smb_fname = fsp->fsp_name;
4054
4055 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
4056 return NT_STATUS_UNSUCCESSFUL);
4057
4058 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
4059
4060 status = SMB_VFS_NEXT_FSTREAMINFO(handle, fsp, mem_ctx,
4061 pnum_streams, pstreams);
4062 if (!NT_STATUS_IS_OK(status)) {
4063 return status;
4064 }
4065
4066 fruit_filter_empty_streams(pnum_streams, pstreams);
4067
4068 status = fruit_streaminfo_meta(handle, fsp, smb_fname,
4069 mem_ctx, pnum_streams, pstreams);
4070 if (!NT_STATUS_IS_OK(status)) {
4071 return status;
4072 }
4073
4074 status = fruit_streaminfo_rsrc(handle, fsp, smb_fname,
4075 mem_ctx, pnum_streams, pstreams);
4076 if (!NT_STATUS_IS_OK(status)) {
4077 return status;
4078 }
4079
4080 return NT_STATUS_OK;
4081 }
4082
4083 static int fruit_fntimes(vfs_handle_struct *handle,
4084 files_struct *fsp,
4085 struct smb_file_time *ft)
4086 {
4087 int rc = 0;
4088 struct adouble *ad = NULL;
4089 struct fruit_config_data *config = NULL;
4090
4091 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
4092 return -1);
4093
4094 if ((config->meta != FRUIT_META_NETATALK) ||
4095 is_omit_timespec(&ft->create_time))
4096 {
4097 return SMB_VFS_NEXT_FNTIMES(handle, fsp, ft);
4098 }
4099
4100 DBG_DEBUG("set btime for %s to %s", fsp_str_dbg(fsp),
4101 time_to_asc(convert_timespec_to_time_t(ft->create_time)));
4102
4103 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_META);
4104 if (ad == NULL) {
4105 goto exit;
4106 }
4107
4108 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX,
4109 convert_time_t_to_uint32_t(ft->create_time.tv_sec));
4110
4111 rc = ad_fset(handle, ad, fsp);
4112
4113 exit:
4114
4115 TALLOC_FREE(ad);
4116 if (rc != 0) {
4117 DBG_WARNING("%s\n", fsp_str_dbg(fsp));
4118 return -1;
4119 }
4120 return SMB_VFS_NEXT_FNTIMES(handle, fsp, ft);
4121 }
4122
4123 static int fruit_fallocate(struct vfs_handle_struct *handle,
4124 struct files_struct *fsp,
4125 uint32_t mode,
4126 off_t offset,
4127 off_t len)
4128 {
4129 struct fio *fio = fruit_get_complete_fio(handle, fsp);
4130
4131 if (fio == NULL) {
4132 return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
4133 }
4134
4135 /* Let the pwrite code path handle it. */
4136 errno = ENOSYS;
4137 return -1;
4138 }
4139
4140 static int fruit_ftruncate_rsrc_xattr(struct vfs_handle_struct *handle,
4141 struct files_struct *fsp,
4142 off_t offset)
4143 {
4144 #ifdef HAVE_ATTROPEN
4145 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
4146 #endif
4147 return 0;
4148 }
4149
4150 static int fruit_ftruncate_rsrc_adouble(struct vfs_handle_struct *handle,
4151 struct files_struct *fsp,
4152 off_t offset)
4153 {
4154 struct fio *fio = fruit_get_complete_fio(handle, fsp);
4155 int rc;
4156 struct adouble *ad = NULL;
4157 off_t ad_off;
4158
4159 if (fio == NULL || fio->ad_fsp == NULL) {
4160 DBG_ERR("fio/ad_fsp=NULL for [%s]\n", fsp_str_dbg(fsp));
4161 errno = EBADF;
4162 return -1;
4163 }
4164
4165 ad = ad_fget(talloc_tos(), handle, fio->ad_fsp, ADOUBLE_RSRC);
4166 if (ad == NULL) {
4167 DBG_ERR("ad_fget [%s] failed [%s]\n",
4168 fsp_str_dbg(fio->ad_fsp), strerror(errno));
4169 return -1;
4170 }
4171
4172 ad_off = ad_getentryoff(ad, ADEID_RFORK);
4173
4174 rc = SMB_VFS_NEXT_FTRUNCATE(handle, fio->ad_fsp, offset + ad_off);
4175 if (rc != 0) {
4176 TALLOC_FREE(ad);
4177 return -1;
4178 }
4179
4180 ad_setentrylen(ad, ADEID_RFORK, offset);
4181
4182 rc = ad_fset(handle, ad, fio->ad_fsp);
4183 if (rc != 0) {
4184 DBG_ERR("ad_fset [%s] failed [%s]\n",
4185 fsp_str_dbg(fio->ad_fsp), strerror(errno));
4186 TALLOC_FREE(ad);
4187 return -1;
4188 }
4189
4190 TALLOC_FREE(ad);
4191 return 0;
4192 }
4193
4194 static int fruit_ftruncate_rsrc_stream(struct vfs_handle_struct *handle,
4195 struct files_struct *fsp,
4196 off_t offset)
4197 {
4198 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
4199 }
4200
4201 static int fruit_ftruncate_rsrc(struct vfs_handle_struct *handle,
4202 struct files_struct *fsp,
4203 off_t offset)
4204 {
4205 struct fio *fio = fruit_get_complete_fio(handle, fsp);
4206 int ret;
4207
4208 if (fio == NULL) {
4209 DBG_ERR("Failed to fetch fsp extension\n");
4210 return -1;
4211 }
4212
4213 switch (fio->config->rsrc) {
4214 case FRUIT_RSRC_XATTR:
4215 ret = fruit_ftruncate_rsrc_xattr(handle, fsp, offset);
4216 break;
4217
4218 case FRUIT_RSRC_ADFILE:
4219 ret = fruit_ftruncate_rsrc_adouble(handle, fsp, offset);
4220 break;
4221
4222 case FRUIT_RSRC_STREAM:
4223 ret = fruit_ftruncate_rsrc_stream(handle, fsp, offset);
4224 break;
4225
4226 default:
4227 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
4228 return -1;
4229 }
4230
4231
4232 return ret;
4233 }
4234
4235 static int fruit_ftruncate_meta(struct vfs_handle_struct *handle,
4236 struct files_struct *fsp,
4237 off_t offset)
4238 {
4239 if (offset > 60) {
4240 DBG_WARNING("ftruncate %s to %jd\n",
4241 fsp_str_dbg(fsp), (intmax_t)offset);
4242 /* OS X returns NT_STATUS_ALLOTTED_SPACE_EXCEEDED */
4243 errno = EOVERFLOW;
4244 return -1;
4245 }
4246
4247 /* OS X returns success but does nothing */
4248 DBG_INFO("ignoring ftruncate %s to %jd\n",
4249 fsp_str_dbg(fsp), (intmax_t)offset);
4250 return 0;
4251 }
4252
4253 static int fruit_ftruncate(struct vfs_handle_struct *handle,
4254 struct files_struct *fsp,
4255 off_t offset)
4256 {
4257 struct fio *fio = fruit_get_complete_fio(handle, fsp);
4258 int ret;
4259
4260 DBG_DEBUG("Path [%s] offset [%"PRIdMAX"]\n", fsp_str_dbg(fsp),
4261 (intmax_t)offset);
4262
4263 if (fio == NULL) {
4264 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
4265 }
4266
4267 if (fio->type == ADOUBLE_META) {
4268 ret = fruit_ftruncate_meta(handle, fsp, offset);
4269 } else {
4270 ret = fruit_ftruncate_rsrc(handle, fsp, offset);
4271 }
4272
4273 DBG_DEBUG("Path [%s] result [%d]\n", fsp_str_dbg(fsp), ret);
4274 return ret;
4275 }
4276
4277 static NTSTATUS fruit_create_file(vfs_handle_struct *handle,
4278 struct smb_request *req,
4279 struct files_struct *dirfsp,
4280 struct smb_filename *smb_fname,
4281 uint32_t access_mask,
4282 uint32_t share_access,
4283 uint32_t create_disposition,
4284 uint32_t create_options,
4285 uint32_t file_attributes,
4286 uint32_t oplock_request,
4287 const struct smb2_lease *lease,
4288 uint64_t allocation_size,
4289 uint32_t private_flags,
4290 struct security_descriptor *sd,
4291 struct ea_list *ea_list,
4292 files_struct **result,
4293 int *pinfo,
4294 const struct smb2_create_blobs *in_context_blobs,
4295 struct smb2_create_blobs *out_context_blobs)
4296 {
4297 NTSTATUS status;
4298 struct fruit_config_data *config = NULL;
4299 files_struct *fsp = NULL;
4300 bool internal_open = (oplock_request & INTERNAL_OPEN_ONLY);
4301 int ret;
4302
4303 status = check_aapl(handle, req, in_context_blobs, out_context_blobs);
4304 if (!NT_STATUS_IS_OK(status)) {
4305 goto fail;
4306 }
4307
4308 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
4309 return NT_STATUS_UNSUCCESSFUL);
4310
4311 if (is_apple_stream(smb_fname->stream_name) &&
4312 !internal_open &&
4313 config->convert_adouble)
4314 {
4315 uint32_t conv_flags = 0;
4316
4317 if (config->wipe_intentionally_left_blank_rfork) {
4318 conv_flags |= AD_CONV_WIPE_BLANK;
4319 }
4320 if (config->delete_empty_adfiles) {
4321 conv_flags |= AD_CONV_DELETE;
4322 }
4323
4324 ret = ad_convert(handle,
4325 smb_fname,
4326 macos_string_replace_map,
4327 conv_flags);
4328 if (ret != 0) {
4329 DBG_ERR("ad_convert(\"%s\") failed\n",
4330 smb_fname_str_dbg(smb_fname));
4331 }
4332 }
4333
4334 status = SMB_VFS_NEXT_CREATE_FILE(
4335 handle, req, dirfsp, smb_fname,
4336 access_mask, share_access,
4337 create_disposition, create_options,
4338 file_attributes, oplock_request,
4339 lease,
4340 allocation_size, private_flags,
4341 sd, ea_list, result,
4342 pinfo, in_context_blobs, out_context_blobs);
4343 if (!NT_STATUS_IS_OK(status)) {
4344 return status;
4345 }
4346
4347 fsp = *result;
4348
4349 if (global_fruit_config.nego_aapl) {
4350 if (config->posix_rename && fsp->fsp_flags.is_directory) {
4351 /*
4352 * Enable POSIX directory rename behaviour
4353 */
4354 fsp->posix_flags |= FSP_POSIX_FLAGS_RENAME;
4355 }
4356 }
4357
4358 /*
4359 * If this is a plain open for existing files, opening an 0
4360 * byte size resource fork MUST fail with
4361 * NT_STATUS_OBJECT_NAME_NOT_FOUND.
4362 *
4363 * Cf the vfs_fruit torture tests in test_rfork_create().
4364 */
4365 if (global_fruit_config.nego_aapl &&
4366 create_disposition == FILE_OPEN &&
4367 smb_fname->st.st_ex_size == 0 &&
4368 is_named_stream(smb_fname))
4369 {
4370 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
4371 goto fail;
4372 }
4373
4374 if (is_named_stream(smb_fname) || fsp->fsp_flags.is_directory) {
4375 return status;
4376 }
4377
4378 if ((config->locking == FRUIT_LOCKING_NETATALK) &&
4379 (fsp->op != NULL) &&
4380 !fsp->fsp_flags.is_pathref)
4381 {
4382 status = fruit_check_access(
4383 handle, *result,
4384 access_mask,
4385 share_access);
4386 if (!NT_STATUS_IS_OK(status)) {
4387 goto fail;
4388 }
4389 }
4390
4391 return status;
4392
4393 fail:
4394 DEBUG(10, ("fruit_create_file: %s\n", nt_errstr(status)));
4395
4396 if (fsp) {
4397 close_file_free(req, &fsp, ERROR_CLOSE);
4398 *result = NULL;
4399 }
4400
4401 return status;
4402 }
4403
4404 static NTSTATUS fruit_freaddir_attr(struct vfs_handle_struct *handle,
4405 struct files_struct *fsp,
4406 TALLOC_CTX *mem_ctx,
4407 struct readdir_attr_data **pattr_data)
4408 {
4409 struct fruit_config_data *config = NULL;
4410 struct readdir_attr_data *attr_data;
4411 uint32_t conv_flags = 0;
4412 NTSTATUS status;
4413 int ret;
4414
4415 SMB_VFS_HANDLE_GET_DATA(handle, config,
4416 struct fruit_config_data,
4417 return NT_STATUS_UNSUCCESSFUL);
4418
4419 if (!global_fruit_config.nego_aapl) {
4420 return SMB_VFS_NEXT_FREADDIR_ATTR(handle,
4421 fsp,
4422 mem_ctx,
4423 pattr_data);
4424 }
4425
4426 DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
4427
4428 if (config->convert_adouble) {
4429 if (config->wipe_intentionally_left_blank_rfork) {
4430 conv_flags |= AD_CONV_WIPE_BLANK;
4431 }
4432 if (config->delete_empty_adfiles) {
4433 conv_flags |= AD_CONV_DELETE;
4434 }
4435
4436 ret = ad_convert(handle,
4437 fsp->fsp_name,
4438 macos_string_replace_map,
4439 conv_flags);
4440 if (ret != 0) {
4441 DBG_ERR("ad_convert(\"%s\") failed\n",
4442 fsp_str_dbg(fsp));
4443 }
4444 }
4445
4446 *pattr_data = talloc_zero(mem_ctx, struct readdir_attr_data);
4447 if (*pattr_data == NULL) {
4448 return NT_STATUS_NO_MEMORY;
4449 }
4450 attr_data = *pattr_data;
4451 attr_data->type = RDATTR_AAPL;
4452
4453 /*
4454 * Mac metadata: compressed FinderInfo, resource fork length
4455 * and creation date
4456 */
4457 status = readdir_attr_macmeta(handle, fsp->fsp_name, attr_data);
4458 if (!NT_STATUS_IS_OK(status)) {
4459 /*
4460 * Error handling is tricky: if we return failure from
4461 * this function, the corresponding directory entry
4462 * will to be passed to the client, so we really just
4463 * want to error out on fatal errors.
4464 */
4465 if (!NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
4466 goto fail;
4467 }
4468 }
4469
4470 /*
4471 * UNIX mode
4472 */
4473 if (config->unix_info_enabled) {
4474 attr_data->attr_data.aapl.unix_mode =
4475 fsp->fsp_name->st.st_ex_mode;
4476 }
4477
4478 /*
4479 * max_access
4480 */
4481 if (!config->readdir_attr_max_access) {
4482 attr_data->attr_data.aapl.max_access = FILE_GENERIC_ALL;
4483 } else {
4484 status = smbd_calculate_access_mask_fsp(fsp->conn->cwd_fsp,
4485 fsp,
4486 false,
4487 SEC_FLAG_MAXIMUM_ALLOWED,
4488 &attr_data->attr_data.aapl.max_access);
4489 if (!NT_STATUS_IS_OK(status)) {
4490 goto fail;
4491 }
4492 }
4493
4494 return NT_STATUS_OK;
4495
4496 fail:
4497 DBG_WARNING("Path [%s], error: %s\n", fsp_str_dbg(fsp),
4498 nt_errstr(status));
4499 TALLOC_FREE(*pattr_data);
4500 return status;
4501 }
4502
4503 static NTSTATUS fruit_fget_nt_acl(vfs_handle_struct *handle,
4504 files_struct *fsp,
4505 uint32_t security_info,
4506 TALLOC_CTX *mem_ctx,
4507 struct security_descriptor **ppdesc)
4508 {
4509 NTSTATUS status;
4510 struct security_ace ace;
4511 struct dom_sid sid;
4512 struct fruit_config_data *config;
4513
4514 SMB_VFS_HANDLE_GET_DATA(handle, config,
4515 struct fruit_config_data,
4516 return NT_STATUS_UNSUCCESSFUL);
4517
4518 status = SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info,
4519 mem_ctx, ppdesc);
4520 if (!NT_STATUS_IS_OK(status)) {
4521 return status;
4522 }
4523
4524 /*
4525 * Add MS NFS style ACEs with uid, gid and mode
4526 */
4527 if (!global_fruit_config.nego_aapl) {
4528 return NT_STATUS_OK;
4529 }
4530 if (!config->unix_info_enabled) {
4531 return NT_STATUS_OK;
4532 }
4533
4534 /* First remove any existing ACE's with NFS style mode/uid/gid SIDs. */
4535 status = remove_virtual_nfs_aces(*ppdesc);
4536 if (!NT_STATUS_IS_OK(status)) {
4537 DBG_WARNING("failed to remove MS NFS style ACEs\n");
4538 return status;
4539 }
4540
4541 /* MS NFS style mode */
4542 sid_compose(&sid, &global_sid_Unix_NFS_Mode, fsp->fsp_name->st.st_ex_mode);
4543 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
4544 status = security_descriptor_dacl_add(*ppdesc, &ace);
4545 if (!NT_STATUS_IS_OK(status)) {
4546 DEBUG(1,("failed to add MS NFS style ACE\n"));
4547 return status;
4548 }
4549
4550 /* MS NFS style uid */
4551 sid_compose(&sid, &global_sid_Unix_NFS_Users, fsp->fsp_name->st.st_ex_uid);
4552 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
4553 status = security_descriptor_dacl_add(*ppdesc, &ace);
4554 if (!NT_STATUS_IS_OK(status)) {
4555 DEBUG(1,("failed to add MS NFS style ACE\n"));
4556 return status;
4557 }
4558
4559 /* MS NFS style gid */
4560 sid_compose(&sid, &global_sid_Unix_NFS_Groups, fsp->fsp_name->st.st_ex_gid);
4561 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
4562 status = security_descriptor_dacl_add(*ppdesc, &ace);
4563 if (!NT_STATUS_IS_OK(status)) {
4564 DEBUG(1,("failed to add MS NFS style ACE\n"));
4565 return status;
4566 }
4567
4568 return NT_STATUS_OK;
4569 }
4570
4571 static NTSTATUS fruit_fset_nt_acl(vfs_handle_struct *handle,
4572 files_struct *fsp,
4573 uint32_t security_info_sent,
4574 const struct security_descriptor *orig_psd)
4575 {
4576 NTSTATUS status;
4577 bool do_chmod;
4578 mode_t ms_nfs_mode = 0;
4579 int result;
4580 struct security_descriptor *psd = NULL;
4581 uint32_t orig_num_aces = 0;
4582
4583 if (orig_psd->dacl != NULL) {
4584 orig_num_aces = orig_psd->dacl->num_aces;
4585 }
4586
4587 psd = security_descriptor_copy(talloc_tos(), orig_psd);
4588 if (psd == NULL) {
4589 return NT_STATUS_NO_MEMORY;
4590 }
4591
4592 DBG_DEBUG("fruit_fset_nt_acl: %s\n", fsp_str_dbg(fsp));
4593
4594 status = check_ms_nfs(handle, fsp, psd, &ms_nfs_mode, &do_chmod);
4595 if (!NT_STATUS_IS_OK(status)) {
4596 DEBUG(1, ("fruit_fset_nt_acl: check_ms_nfs failed%s\n", fsp_str_dbg(fsp)));
4597 TALLOC_FREE(psd);
4598 return status;
4599 }
4600
4601 /*
4602 * If only ms_nfs ACE entries were sent, ensure we set the DACL
4603 * sent/present flags correctly now we've removed them.
4604 */
4605
4606 if (orig_num_aces != 0) {
4607 /*
4608 * Are there any ACE's left ?
4609 */
4610 if (psd->dacl->num_aces == 0) {
4611 /* No - clear the DACL sent/present flags. */
4612 security_info_sent &= ~SECINFO_DACL;
4613 psd->type &= ~SEC_DESC_DACL_PRESENT;
4614 }
4615 }
4616
4617 status = SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
4618 if (!NT_STATUS_IS_OK(status)) {
4619 DEBUG(1, ("fruit_fset_nt_acl: SMB_VFS_NEXT_FSET_NT_ACL failed%s\n", fsp_str_dbg(fsp)));
4620 TALLOC_FREE(psd);
4621 return status;
4622 }
4623
4624 if (do_chmod) {
4625 result = SMB_VFS_FCHMOD(fsp, ms_nfs_mode);
4626 if (result != 0) {
4627 DBG_WARNING("%s, result: %d, %04o error %s\n",
4628 fsp_str_dbg(fsp),
4629 result,
4630 (unsigned)ms_nfs_mode,
4631 strerror(errno));
4632 status = map_nt_error_from_unix(errno);
4633 TALLOC_FREE(psd);
4634 return status;
4635 }
4636 }
4637
4638 TALLOC_FREE(psd);
4639 return NT_STATUS_OK;
4640 }
4641
4642 static struct vfs_offload_ctx *fruit_offload_ctx;
4643
4644 struct fruit_offload_read_state {
4645 struct vfs_handle_struct *handle;
4646 struct tevent_context *ev;
4647 files_struct *fsp;
4648 uint32_t fsctl;
4649 uint32_t flags;
4650 uint64_t xferlen;
4651 DATA_BLOB token;
4652 };
4653
4654 static void fruit_offload_read_done(struct tevent_req *subreq);
4655
4656 static struct tevent_req *fruit_offload_read_send(
4657 TALLOC_CTX *mem_ctx,
4658 struct tevent_context *ev,
4659 struct vfs_handle_struct *handle,
4660 files_struct *fsp,
4661 uint32_t fsctl,
4662 uint32_t ttl,
4663 off_t offset,
4664 size_t to_copy)
4665 {
4666 struct tevent_req *req = NULL;
4667 struct tevent_req *subreq = NULL;
4668 struct fruit_offload_read_state *state = NULL;
4669
4670 req = tevent_req_create(mem_ctx, &state,
4671 struct fruit_offload_read_state);
4672 if (req == NULL) {
4673 return NULL;
4674 }
4675 *state = (struct fruit_offload_read_state) {
4676 .handle = handle,
4677 .ev = ev,
4678 .fsp = fsp,
4679 .fsctl = fsctl,
4680 };
4681
4682 subreq = SMB_VFS_NEXT_OFFLOAD_READ_SEND(mem_ctx, ev, handle, fsp,
4683 fsctl, ttl, offset, to_copy);
4684 if (tevent_req_nomem(subreq, req)) {
4685 return tevent_req_post(req, ev);
4686 }
4687 tevent_req_set_callback(subreq, fruit_offload_read_done, req);
4688 return req;
4689 }
4690
4691 static void fruit_offload_read_done(struct tevent_req *subreq)
4692 {
4693 struct tevent_req *req = tevent_req_callback_data(
4694 subreq, struct tevent_req);
4695 struct fruit_offload_read_state *state = tevent_req_data(
4696 req, struct fruit_offload_read_state);
4697 NTSTATUS status;
4698
4699 status = SMB_VFS_NEXT_OFFLOAD_READ_RECV(subreq,
4700 state->handle,
4701 state,
4702 &state->flags,
4703 &state->xferlen,
4704 &state->token);
4705 TALLOC_FREE(subreq);
4706 if (tevent_req_nterror(req, status)) {
4707 return;
4708 }
4709
4710 if (state->fsctl != FSCTL_SRV_REQUEST_RESUME_KEY) {
4711 tevent_req_done(req);
4712 return;
4713 }
4714
4715 status = vfs_offload_token_ctx_init(state->fsp->conn->sconn->client,
4716 &fruit_offload_ctx);
4717 if (tevent_req_nterror(req, status)) {
4718 return;
4719 }
4720
4721 status = vfs_offload_token_db_store_fsp(fruit_offload_ctx,
4722 state->fsp,
4723 &state->token);
4724 if (tevent_req_nterror(req, status)) {
4725 return;
4726 }
4727
4728 tevent_req_done(req);
4729 return;
4730 }
4731
4732 static NTSTATUS fruit_offload_read_recv(struct tevent_req *req,
4733 struct vfs_handle_struct *handle,
4734 TALLOC_CTX *mem_ctx,
4735 uint32_t *flags,
4736 uint64_t *xferlen,
4737 DATA_BLOB *token)
4738 {
4739 struct fruit_offload_read_state *state = tevent_req_data(
4740 req, struct fruit_offload_read_state);
4741 NTSTATUS status;
4742
4743 if (tevent_req_is_nterror(req, &status)) {
4744 tevent_req_received(req);
4745 return status;
4746 }
4747
4748 *flags = state->flags;
4749 *xferlen = state->xferlen;
4750 token->length = state->token.length;
4751 token->data = talloc_move(mem_ctx, &state->token.data);
4752
4753 tevent_req_received(req);
4754 return NT_STATUS_OK;
4755 }
4756
4757 struct fruit_offload_write_state {
4758 struct vfs_handle_struct *handle;
4759 off_t copied;
4760 struct files_struct *src_fsp;
4761 struct files_struct *dst_fsp;
4762 bool is_copyfile;
4763 };
4764
4765 static void fruit_offload_write_done(struct tevent_req *subreq);
4766 static struct tevent_req *fruit_offload_write_send(struct vfs_handle_struct *handle,
4767 TALLOC_CTX *mem_ctx,
4768 struct tevent_context *ev,
4769 uint32_t fsctl,
4770 DATA_BLOB *token,
4771 off_t transfer_offset,
4772 struct files_struct *dest_fsp,
4773 off_t dest_off,
4774 off_t num)
4775 {
4776 struct tevent_req *req, *subreq;
4777 struct fruit_offload_write_state *state;
4778 NTSTATUS status;
4779 struct fruit_config_data *config;
4780 off_t src_off = transfer_offset;
4781 files_struct *src_fsp = NULL;
4782 off_t to_copy = num;
4783 bool copyfile_enabled = false;
4784
4785 DEBUG(10,("soff: %ju, doff: %ju, len: %ju\n",
4786 (uintmax_t)src_off, (uintmax_t)dest_off, (uintmax_t)num));
4787
4788 SMB_VFS_HANDLE_GET_DATA(handle, config,
4789 struct fruit_config_data,
4790 return NULL);
4791
4792 req = tevent_req_create(mem_ctx, &state,
4793 struct fruit_offload_write_state);
4794 if (req == NULL) {
4795 return NULL;
4796 }
4797 state->handle = handle;
4798 state->dst_fsp = dest_fsp;
4799
4800 switch (fsctl) {
4801 case FSCTL_SRV_COPYCHUNK:
4802 case FSCTL_SRV_COPYCHUNK_WRITE:
4803 copyfile_enabled = config->copyfile_enabled;
4804 break;
4805 default:
4806 break;
4807 }
4808
4809 /*
4810 * Check if this a OS X copyfile style copychunk request with
4811 * a requested chunk count of 0 that was translated to a
4812 * offload_write_send VFS call overloading the parameters src_off
4813 * = dest_off = num = 0.
4814 */
4815 if (copyfile_enabled && num == 0 && src_off == 0 && dest_off == 0) {
4816 status = vfs_offload_token_db_fetch_fsp(
4817 fruit_offload_ctx, token, &src_fsp);
4818 if (tevent_req_nterror(req, status)) {
4819 return tevent_req_post(req, ev);
4820 }
4821 state->src_fsp = src_fsp;
4822
4823 status = vfs_stat_fsp(src_fsp);
4824 if (tevent_req_nterror(req, status)) {
4825 return tevent_req_post(req, ev);
4826 }
4827
4828 to_copy = src_fsp->fsp_name->st.st_ex_size;
4829 state->is_copyfile = true;
4830 }
4831
4832 subreq = SMB_VFS_NEXT_OFFLOAD_WRITE_SEND(handle,
4833 mem_ctx,
4834 ev,
4835 fsctl,
4836 token,
4837 transfer_offset,
4838 dest_fsp,
4839 dest_off,
4840 to_copy);
4841 if (tevent_req_nomem(subreq, req)) {
4842 return tevent_req_post(req, ev);
4843 }
4844
4845 tevent_req_set_callback(subreq, fruit_offload_write_done, req);
4846 return req;
4847 }
4848
4849 static void fruit_offload_write_done(struct tevent_req *subreq)
4850 {
4851 struct tevent_req *req = tevent_req_callback_data(
4852 subreq, struct tevent_req);
4853 struct fruit_offload_write_state *state = tevent_req_data(
4854 req, struct fruit_offload_write_state);
4855 NTSTATUS status;
4856 unsigned int num_streams = 0;
4857 struct stream_struct *streams = NULL;
4858 unsigned int i;
4859 struct smb_filename *src_fname_tmp = NULL;
4860 struct smb_filename *dst_fname_tmp = NULL;
4861
4862 status = SMB_VFS_NEXT_OFFLOAD_WRITE_RECV(state->handle,
4863 subreq,
4864 &state->copied);
4865 TALLOC_FREE(subreq);
4866 if (tevent_req_nterror(req, status)) {
4867 return;
4868 }
4869
4870 if (!state->is_copyfile) {
4871 tevent_req_done(req);
4872 return;
4873 }
4874
4875 /*
4876 * Now copy all remaining streams. We know the share supports
4877 * streams, because we're in vfs_fruit. We don't do this async
4878 * because streams are few and small.
4879 */
4880 status = vfs_fstreaminfo(state->src_fsp,
4881 req, &num_streams, &streams);
4882 if (tevent_req_nterror(req, status)) {
4883 return;
4884 }
4885
4886 if (num_streams == 1) {
4887 /* There is always one stream, ::$DATA. */
4888 tevent_req_done(req);
4889 return;
4890 }
4891
4892 for (i = 0; i < num_streams; i++) {
4893 DEBUG(10, ("%s: stream: '%s'/%zu\n",
4894 __func__, streams[i].name, (size_t)streams[i].size));
4895
4896 src_fname_tmp = synthetic_smb_fname(
4897 req,
4898 state->src_fsp->fsp_name->base_name,
4899 streams[i].name,
4900 NULL,
4901 state->src_fsp->fsp_name->twrp,
4902 state->src_fsp->fsp_name->flags);
4903 if (tevent_req_nomem(src_fname_tmp, req)) {
4904 return;
4905 }
4906
4907 if (is_ntfs_default_stream_smb_fname(src_fname_tmp)) {
4908 TALLOC_FREE(src_fname_tmp);
4909 continue;
4910 }
4911
4912 dst_fname_tmp = synthetic_smb_fname(
4913 req,
4914 state->dst_fsp->fsp_name->base_name,
4915 streams[i].name,
4916 NULL,
4917 state->dst_fsp->fsp_name->twrp,
4918 state->dst_fsp->fsp_name->flags);
4919 if (tevent_req_nomem(dst_fname_tmp, req)) {
4920 TALLOC_FREE(src_fname_tmp);
4921 return;
4922 }
4923
4924 status = copy_file(req,
4925 state->handle->conn,
4926 src_fname_tmp,
4927 dst_fname_tmp,
4928 FILE_CREATE);
4929 if (!NT_STATUS_IS_OK(status)) {
4930 DEBUG(1, ("%s: copy %s to %s failed: %s\n", __func__,
4931 smb_fname_str_dbg(src_fname_tmp),
4932 smb_fname_str_dbg(dst_fname_tmp),
4933 nt_errstr(status)));
4934 TALLOC_FREE(src_fname_tmp);
4935 TALLOC_FREE(dst_fname_tmp);
4936 tevent_req_nterror(req, status);
4937 return;
4938 }
4939
4940 TALLOC_FREE(src_fname_tmp);
4941 TALLOC_FREE(dst_fname_tmp);
4942 }
4943
4944 TALLOC_FREE(streams);
4945 TALLOC_FREE(src_fname_tmp);
4946 TALLOC_FREE(dst_fname_tmp);
4947 tevent_req_done(req);
4948 }
4949
4950 static NTSTATUS fruit_offload_write_recv(struct vfs_handle_struct *handle,
4951 struct tevent_req *req,
4952 off_t *copied)
4953 {
4954 struct fruit_offload_write_state *state = tevent_req_data(
4955 req, struct fruit_offload_write_state);
4956 NTSTATUS status;
4957
4958 if (tevent_req_is_nterror(req, &status)) {
4959 DEBUG(1, ("server side copy chunk failed: %s\n",
4960 nt_errstr(status)));
4961 *copied = 0;
4962 tevent_req_received(req);
4963 return status;
4964 }
4965
4966 *copied = state->copied;
4967 tevent_req_received(req);
4968
4969 return NT_STATUS_OK;
4970 }
4971
4972 static char *fruit_get_bandsize_line(char **lines, int numlines)
4973 {
4974 static regex_t re;
4975 static bool re_initialized = false;
4976 int i;
4977 int ret;
4978
4979 if (!re_initialized) {
4980 ret = regcomp(&re, "^[[:blank:]]*<key>band-size</key>$", 0);
4981 if (ret != 0) {
4982 return NULL;
4983 }
4984 re_initialized = true;
4985 }
4986
4987 for (i = 0; i < numlines; i++) {
4988 regmatch_t matches[1];
4989
4990 ret = regexec(&re, lines[i], 1, matches, 0);
4991 if (ret == 0) {
4992 /*
4993 * Check if the match was on the last line, sa we want
4994 * the subsequent line.
4995 */
4996 if (i + 1 == numlines) {
4997 return NULL;
4998 }
4999 return lines[i + 1];
5000 }
5001 if (ret != REG_NOMATCH) {
5002 return NULL;
5003 }
5004 }
5005
5006 return NULL;
5007 }
5008
5009 static bool fruit_get_bandsize_from_line(char *line, size_t *_band_size)
5010 {
5011 static regex_t re;
5012 static bool re_initialized = false;
5013 regmatch_t matches[2];
5014 uint64_t band_size;
5015 int ret;
5016 bool ok;
5017
5018 if (!re_initialized) {
5019 ret = regcomp(&re,
5020 "^[[:blank:]]*"
5021 "<integer>\\([[:digit:]]*\\)</integer>$",
5022 0);
5023 if (ret != 0) {
5024 return false;
5025 }
5026 re_initialized = true;
5027 }
5028
5029 ret = regexec(&re, line, 2, matches, 0);
5030 if (ret != 0) {
5031 DBG_ERR("regex failed [%s]\n", line);
5032 return false;
5033 }
5034
5035 line[matches[1].rm_eo] = '\0';
5036
5037 ok = conv_str_u64(&line[matches[1].rm_so], &band_size);
5038 if (!ok) {
5039 return false;
5040 }
5041 *_band_size = (size_t)band_size;
5042 return true;
5043 }
5044
5045 /*
5046 * This reads and parses an Info.plist from a TM sparsebundle looking for the
5047 * "band-size" key and value.
5048 */
5049 static bool fruit_get_bandsize(vfs_handle_struct *handle,
5050 const char *dir,
5051 size_t *band_size)
5052 {
5053 #define INFO_PLIST_MAX_SIZE 64*1024
5054 char *plist = NULL;
5055 struct smb_filename *smb_fname = NULL;
5056 files_struct *fsp = NULL;
5057 uint8_t *file_data = NULL;
5058 char **lines = NULL;
5059 char *band_size_line = NULL;
5060 size_t plist_file_size;
5061 ssize_t nread;
5062 int numlines;
5063 int ret;
5064 bool ok = false;
5065 NTSTATUS status;
5066
5067 plist = talloc_asprintf(talloc_tos(),
5068 "%s/%s/Info.plist",
5069 handle->conn->connectpath,
5070 dir);
5071 if (plist == NULL) {
5072 ok = false;
5073 goto out;
5074 }
5075
5076 smb_fname = synthetic_smb_fname(talloc_tos(),
5077 plist,
5078 NULL,
5079 NULL,
5080 0,
5081 0);
5082 if (smb_fname == NULL) {
5083 ok = false;
5084 goto out;
5085 }
5086
5087 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
5088 if (ret != 0) {
5089 DBG_INFO("Ignoring Sparsebundle without Info.plist [%s]\n", dir);
5090 ok = true;
5091 goto out;
5092 }
5093
5094 plist_file_size = smb_fname->st.st_ex_size;
5095
5096 if (plist_file_size > INFO_PLIST_MAX_SIZE) {
5097 DBG_INFO("%s is too large, ignoring\n", plist);
5098 ok = true;
5099 goto out;
5100 }
5101
5102 status = SMB_VFS_NEXT_CREATE_FILE(
5103 handle, /* conn */
5104 NULL, /* req */
5105 NULL, /* dirfsp */
5106 smb_fname, /* fname */
5107 FILE_GENERIC_READ, /* access_mask */
5108 FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
5109 FILE_OPEN, /* create_disposition */
5110 0, /* create_options */
5111 0, /* file_attributes */
5112 INTERNAL_OPEN_ONLY, /* oplock_request */
5113 NULL, /* lease */
5114 0, /* allocation_size */
5115 0, /* private_flags */
5116 NULL, /* sd */
5117 NULL, /* ea_list */
5118 &fsp, /* result */
5119 NULL, /* psbuf */
5120 NULL, NULL); /* create context */
5121 if (!NT_STATUS_IS_OK(status)) {
5122 DBG_INFO("Opening [%s] failed [%s]\n",
5123 smb_fname_str_dbg(smb_fname), nt_errstr(status));
5124 ok = false;
5125 goto out;
5126 }
5127
5128 file_data = talloc_zero_array(talloc_tos(),
5129 uint8_t,
5130 plist_file_size + 1);
5131 if (file_data == NULL) {
5132 ok = false;
5133 goto out;
5134 }
5135
5136 nread = SMB_VFS_NEXT_PREAD(handle, fsp, file_data, plist_file_size, 0);
5137 if (nread != plist_file_size) {
5138 DBG_ERR("Short read on [%s]: %zu/%zd\n",
5139 fsp_str_dbg(fsp), nread, plist_file_size);
5140 ok = false;
5141 goto out;
5142
5143 }
5144
5145 status = close_file_free(NULL, &fsp, NORMAL_CLOSE);
5146 if (!NT_STATUS_IS_OK(status)) {
5147 DBG_ERR("close_file failed: %s\n", nt_errstr(status));
5148 ok = false;
5149 goto out;
5150 }
5151
5152 lines = file_lines_parse((char *)file_data,
5153 plist_file_size,
5154 &numlines,
5155 talloc_tos());
5156 if (lines == NULL) {
5157 ok = false;
5158 goto out;
5159 }
5160
5161 band_size_line = fruit_get_bandsize_line(lines, numlines);
5162 if (band_size_line == NULL) {
5163 DBG_ERR("Didn't find band-size key in [%s]\n",
5164 smb_fname_str_dbg(smb_fname));
5165 ok = false;
5166 goto out;
5167 }
5168
5169 ok = fruit_get_bandsize_from_line(band_size_line, band_size);
5170 if (!ok) {
5171 DBG_ERR("fruit_get_bandsize_from_line failed\n");
5172 goto out;
5173 }
5174
5175 DBG_DEBUG("Parsed band-size [%zu] for [%s]\n", *band_size, plist);
5176
5177 out:
5178 if (fsp != NULL) {
5179 status = close_file_free(NULL, &fsp, NORMAL_CLOSE);
5180 if (!NT_STATUS_IS_OK(status)) {
5181 DBG_ERR("close_file failed: %s\n", nt_errstr(status));
5182 }
5183 }
5184 TALLOC_FREE(plist);
5185 TALLOC_FREE(smb_fname);
5186 TALLOC_FREE(file_data);
5187 TALLOC_FREE(lines);
5188 return ok;
5189 }
5190
5191 struct fruit_disk_free_state {
5192 off_t total_size;
5193 };
5194
5195 static bool fruit_get_num_bands(vfs_handle_struct *handle,
5196 const char *bundle,
5197 size_t *_nbands)
5198 {
5199 char *path = NULL;
5200 struct smb_filename *bands_dir = NULL;
5201 struct smb_Dir *dir_hnd = NULL;
5202 const char *dname = NULL;
5203 char *talloced = NULL;
5204 size_t nbands;
5205 NTSTATUS status;
5206
5207 path = talloc_asprintf(talloc_tos(),
5208 "%s/%s/bands",
5209 handle->conn->connectpath,
5210 bundle);
5211 if (path == NULL) {
5212 return false;
5213 }
5214
5215 bands_dir = synthetic_smb_fname(talloc_tos(),
5216 path,
5217 NULL,
5218 NULL,
5219 0,
5220 0);
5221 TALLOC_FREE(path);
5222 if (bands_dir == NULL) {
5223 return false;
5224 }
5225
5226 status = OpenDir(talloc_tos(),
5227 handle->conn,
5228 bands_dir,
5229 NULL,
5230 0,
5231 &dir_hnd);
5232 if (!NT_STATUS_IS_OK(status)) {
5233 TALLOC_FREE(bands_dir);
5234 errno = map_errno_from_nt_status(status);
5235 return false;
5236 }
5237
5238 nbands = 0;
5239
5240 while ((dname = ReadDirName(dir_hnd, &talloced)) != NULL) {
5241 if (ISDOT(dname) || ISDOTDOT(dname)) {
5242 continue;
5243 }
5244 nbands++;
5245 }
5246 TALLOC_FREE(dir_hnd);
5247
5248 DBG_DEBUG("%zu bands in [%s]\n", nbands, smb_fname_str_dbg(bands_dir));
5249
5250 TALLOC_FREE(bands_dir);
5251
5252 *_nbands = nbands;
5253 return true;
5254 }
5255
5256 static bool fruit_tmsize_do_dirent(vfs_handle_struct *handle,
5257 struct fruit_disk_free_state *state,
5258 const char *name)
5259 {
5260 bool ok;
5261 char *p = NULL;
5262 size_t sparsebundle_strlen = strlen("sparsebundle");
5263 size_t bandsize = 0;
5264 size_t nbands;
5265 off_t tm_size;
5266
5267 p = strstr(name, "sparsebundle");
5268 if (p == NULL) {
5269 return true;
5270 }
5271
5272 if (p[sparsebundle_strlen] != '\0') {
5273 return true;
5274 }
5275
5276 DBG_DEBUG("Processing sparsebundle [%s]\n", name);
5277
5278 ok = fruit_get_bandsize(handle, name, &bandsize);
5279 if (!ok) {
5280 /*
5281 * Beware of race conditions: this may be an uninitialized
5282 * Info.plist that a client is just creating. We don't want let
5283 * this to trigger complete failure.
5284 */
5285 DBG_ERR("Processing sparsebundle [%s] failed\n", name);
5286 return true;
5287 }
5288
5289 ok = fruit_get_num_bands(handle, name, &nbands);
5290 if (!ok) {
5291 /*
5292 * Beware of race conditions: this may be a backup sparsebundle
5293 * in an early stage lacking a bands subdirectory. We don't want
5294 * let this to trigger complete failure.
5295 */
5296 DBG_ERR("Processing sparsebundle [%s] failed\n", name);
5297 return true;
5298 }
5299
5300 /*
5301 * Arithmetic on 32-bit systems may cause overflow, depending on
5302 * size_t precision. First we check its unlikely, then we
5303 * force the precision into target off_t, then we check that
5304 * the total did not overflow either.
5305 */
5306 if (bandsize > SIZE_MAX/nbands) {
5307 DBG_ERR("tmsize potential overflow: bandsize [%zu] nbands [%zu]\n",
5308 bandsize, nbands);
5309 return false;
5310 }
5311 tm_size = (off_t)bandsize * (off_t)nbands;
5312
5313 if (state->total_size + tm_size < state->total_size) {
5314 DBG_ERR("tm total size overflow: bandsize [%zu] nbands [%zu]\n",
5315 bandsize, nbands);
5316 return false;
5317 }
5318
5319 state->total_size += tm_size;
5320
5321 DBG_DEBUG("[%s] tm_size [%jd] total_size [%jd]\n",
5322 name, (intmax_t)tm_size, (intmax_t)state->total_size);
5323
5324 return true;
5325 }
5326
5327 /**
5328 * Calculate used size of a TimeMachine volume
5329 *
5330 * This assumes that the volume is used only for TimeMachine.
5331 *
5332 * - readdir(basedir of share), then
5333 * - for every element that matches regex "^\(.*\)\.sparsebundle$" :
5334 * - parse "\1.sparsebundle/Info.plist" and read the band-size XML key
5335 * - count band files in "\1.sparsebundle/bands/"
5336 * - calculate used size of all bands: band_count * band_size
5337 **/
5338 static uint64_t fruit_disk_free(vfs_handle_struct *handle,
5339 const struct smb_filename *smb_fname,
5340 uint64_t *_bsize,
5341 uint64_t *_dfree,
5342 uint64_t *_dsize)
5343 {
5344 struct fruit_config_data *config = NULL;
5345 struct fruit_disk_free_state state = {0};
5346 struct smb_Dir *dir_hnd = NULL;
5347 const char *dname = NULL;
5348 char *talloced = NULL;
5349 uint64_t dfree;
5350 uint64_t dsize;
5351 bool ok;
5352 NTSTATUS status;
5353
5354 SMB_VFS_HANDLE_GET_DATA(handle, config,
5355 struct fruit_config_data,
5356 return UINT64_MAX);
5357
5358 if (!config->time_machine ||
5359 config->time_machine_max_size == 0)
5360 {
5361 return SMB_VFS_NEXT_DISK_FREE(handle,
5362 smb_fname,
5363 _bsize,
5364 _dfree,
5365 _dsize);
5366 }
5367
5368 status = OpenDir(talloc_tos(),
5369 handle->conn,
5370 smb_fname,
5371 NULL,
5372 0,
5373 &dir_hnd);
5374 if (!NT_STATUS_IS_OK(status)) {
5375 errno = map_errno_from_nt_status(status);
5376 return UINT64_MAX;
5377 }
5378
5379 while ((dname = ReadDirName(dir_hnd, &talloced)) != NULL) {
5380 ok = fruit_tmsize_do_dirent(handle, &state, dname);
5381 if (!ok) {
5382 TALLOC_FREE(talloced);
5383 TALLOC_FREE(dir_hnd);
5384 return UINT64_MAX;
5385 }
5386 TALLOC_FREE(talloced);
5387 }
5388
5389 TALLOC_FREE(dir_hnd);
5390
5391 dsize = config->time_machine_max_size / 512;
5392 dfree = dsize - (state.total_size / 512);
5393 if (dfree > dsize) {
5394 dfree = 0;
5395 }
5396
5397 *_bsize = 512;
5398 *_dsize = dsize;
5399 *_dfree = dfree;
5400 return dfree / 2;
5401 }
5402
5403 static uint64_t fruit_fs_file_id(struct vfs_handle_struct *handle,
5404 const SMB_STRUCT_STAT *psbuf)
5405 {
5406 struct fruit_config_data *config = NULL;
5407
5408 SMB_VFS_HANDLE_GET_DATA(handle, config,
5409 struct fruit_config_data,
5410 return 0);
5411
5412 if (global_fruit_config.nego_aapl &&
5413 config->aapl_zero_file_id)
5414 {
5415 return 0;
5416 }
5417
5418 return SMB_VFS_NEXT_FS_FILE_ID(handle, psbuf);
5419 }
5420
5421 static struct vfs_fn_pointers vfs_fruit_fns = {
5422 .connect_fn = fruit_connect,
5423 .disk_free_fn = fruit_disk_free,
5424
5425 /* File operations */
5426 .fchmod_fn = fruit_fchmod,
5427 .unlinkat_fn = fruit_unlinkat,
5428 .renameat_fn = fruit_renameat,
5429 .openat_fn = fruit_openat,
5430 .close_fn = fruit_close,
5431 .pread_fn = fruit_pread,
5432 .pwrite_fn = fruit_pwrite,
5433 .pread_send_fn = fruit_pread_send,
5434 .pread_recv_fn = fruit_pread_recv,
5435 .pwrite_send_fn = fruit_pwrite_send,
5436 .pwrite_recv_fn = fruit_pwrite_recv,
5437 .fsync_send_fn = fruit_fsync_send,
5438 .fsync_recv_fn = fruit_fsync_recv,
5439 .stat_fn = fruit_stat,
5440 .lstat_fn = fruit_lstat,
5441 .fstat_fn = fruit_fstat,
5442 .fstreaminfo_fn = fruit_fstreaminfo,
5443 .fntimes_fn = fruit_fntimes,
5444 .ftruncate_fn = fruit_ftruncate,
5445 .fallocate_fn = fruit_fallocate,
5446 .create_file_fn = fruit_create_file,
5447 .freaddir_attr_fn = fruit_freaddir_attr,
5448 .offload_read_send_fn = fruit_offload_read_send,
5449 .offload_read_recv_fn = fruit_offload_read_recv,
5450 .offload_write_send_fn = fruit_offload_write_send,
5451 .offload_write_recv_fn = fruit_offload_write_recv,
5452 .fs_file_id_fn = fruit_fs_file_id,
5453
5454 /* NT ACL operations */
5455 .fget_nt_acl_fn = fruit_fget_nt_acl,
5456 .fset_nt_acl_fn = fruit_fset_nt_acl,
5457 };
5458
5459 static_decl_vfs;
5460 NTSTATUS vfs_fruit_init(TALLOC_CTX *ctx)
5461 {
5462 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fruit",
5463 &vfs_fruit_fns);
5464 if (!NT_STATUS_IS_OK(ret)) {
5465 return ret;
5466 }
5467
5468 vfs_fruit_debug_level = debug_add_class("fruit");
5469 if (vfs_fruit_debug_level == -1) {
5470 vfs_fruit_debug_level = DBGC_VFS;
5471 DEBUG(0, ("%s: Couldn't register custom debugging class!\n",
5472 "vfs_fruit_init"));
5473 } else {
5474 DEBUG(10, ("%s: Debug class number of '%s': %d\n",
5475 "vfs_fruit_init","fruit",vfs_fruit_debug_level));
5476 }
5477
5478 return ret;
5479 }
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