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vfs_fruit: fix unpacking of AppleDouble files
[Samba.git] / source3 / modules / vfs_fruit.c
blobbdb068a7e2605a75497131692c1f0b633156e6f5
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 "../lib/crypto/md5.h"
26 #include "system/shmem.h"
27 #include "locking/proto.h"
28 #include "smbd/globals.h"
29 #include "messages.h"
30 #include "libcli/security/security.h"
31
32 /*
33 * Enhanced OS X and Netatalk compatibility
34 * ========================================
35 *
36 * This modules takes advantage of vfs_streams_xattr and
37 * vfs_catia. VFS modules vfs_fruit and vfs_streams_xattr must be
38 * loaded in the correct order:
39 *
40 * vfs modules = catia fruit streams_xattr
41 *
42 * The module intercepts the OS X special streams "AFP_AfpInfo" and
43 * "AFP_Resource" and handles them in a special way. All other named
44 * streams are deferred to vfs_streams_xattr.
45 *
46 * The OS X client maps all NTFS illegal characters to the Unicode
47 * private range. This module optionally stores the charcters using
48 * their native ASCII encoding using vfs_catia. If you're not enabling
49 * this feature, you can skip catia from vfs modules.
50 *
51 * Finally, open modes are optionally checked against Netatalk AFP
52 * share modes.
53 *
54 * The "AFP_AfpInfo" named stream is a binary blob containing OS X
55 * extended metadata for files and directories. This module optionally
56 * reads and stores this metadata in a way compatible with Netatalk 3
57 * which stores the metadata in an EA "org.netatalk.metadata". Cf
58 * source3/include/MacExtensions.h for a description of the binary
59 * blobs content.
60 *
61 * The "AFP_Resource" named stream may be arbitrarily large, thus it
62 * can't be stored in an xattr on most filesystem. ZFS on Solaris is
63 * the only available filesystem where xattrs can be of any size and
64 * the OS supports using the file APIs for xattrs.
65 *
66 * The AFP_Resource stream is stored in an AppleDouble file prepending
67 * "._" to the filename. On Solaris with ZFS the stream is optionally
68 * stored in an EA "org.netatalk.ressource".
69 *
70 *
71 * Extended Attributes
72 * ===================
73 *
74 * The OS X SMB client sends xattrs as ADS too. For xattr interop with
75 * other protocols you may want to adjust the xattr names the VFS
76 * module vfs_streams_xattr uses for storing ADS's. This defaults to
77 * user.DosStream.ADS_NAME:$DATA and can be changed by specifying
78 * these module parameters:
79 *
80 * streams_xattr:prefix = user.
81 * streams_xattr:store_stream_type = false
82 *
83 *
84 * TODO
85 * ====
86 *
87 * - log diagnostic if any needed VFS module is not loaded
88 * (eg with lp_vfs_objects())
89 * - add tests
90 */
91
92 static int vfs_fruit_debug_level = DBGC_VFS;
93
94 #undef DBGC_CLASS
95 #define DBGC_CLASS vfs_fruit_debug_level
96
97 #define FRUIT_PARAM_TYPE_NAME "fruit"
98 #define ADOUBLE_NAME_PREFIX "._"
99
100 /*
101 * REVIEW:
102 * This is hokey, but what else can we do?
103 */
104 #if defined(HAVE_ATTROPEN) || defined(FREEBSD)
105 #define AFPINFO_EA_NETATALK "org.netatalk.Metadata"
106 #define AFPRESOURCE_EA_NETATALK "org.netatalk.ResourceFork"
107 #else
108 #define AFPINFO_EA_NETATALK "user.org.netatalk.Metadata"
109 #define AFPRESOURCE_EA_NETATALK "user.org.netatalk.ResourceFork"
110 #endif
111
112 enum apple_fork {APPLE_FORK_DATA, APPLE_FORK_RSRC};
113
114 enum fruit_rsrc {FRUIT_RSRC_STREAM, FRUIT_RSRC_ADFILE, FRUIT_RSRC_XATTR};
115 enum fruit_meta {FRUIT_META_STREAM, FRUIT_META_NETATALK};
116 enum fruit_locking {FRUIT_LOCKING_NETATALK, FRUIT_LOCKING_NONE};
117 enum fruit_encoding {FRUIT_ENC_NATIVE, FRUIT_ENC_PRIVATE};
118
119 struct fruit_config_data {
120 enum fruit_rsrc rsrc;
121 enum fruit_meta meta;
122 enum fruit_locking locking;
123 enum fruit_encoding encoding;
124 };
125
126 static const struct enum_list fruit_rsrc[] = {
127 {FRUIT_RSRC_STREAM, "stream"}, /* pass on to vfs_streams_xattr */
128 {FRUIT_RSRC_ADFILE, "file"}, /* ._ AppleDouble file */
129 {FRUIT_RSRC_XATTR, "xattr"}, /* Netatalk compatible xattr (ZFS only) */
130 { -1, NULL}
131 };
132
133 static const struct enum_list fruit_meta[] = {
134 {FRUIT_META_STREAM, "stream"}, /* pass on to vfs_streams_xattr */
135 {FRUIT_META_NETATALK, "netatalk"}, /* Netatalk compatible xattr */
136 { -1, NULL}
137 };
138
139 static const struct enum_list fruit_locking[] = {
140 {FRUIT_LOCKING_NETATALK, "netatalk"}, /* synchronize locks with Netatalk */
141 {FRUIT_LOCKING_NONE, "none"},
142 { -1, NULL}
143 };
144
145 static const struct enum_list fruit_encoding[] = {
146 {FRUIT_ENC_NATIVE, "native"}, /* map unicode private chars to ASCII */
147 {FRUIT_ENC_PRIVATE, "private"}, /* keep unicode private chars */
148 { -1, NULL}
149 };
150
151 /*****************************************************************************
152 * Defines, functions and data structures that deal with AppleDouble
153 *****************************************************************************/
154
155 /*
156 * There are two AppleDouble blobs we deal with:
157 *
158 * - ADOUBLE_META - AppleDouble blob used by Netatalk for storing
159 * metadata in an xattr
160 *
161 * - ADOUBLE_RSRC - AppleDouble blob used by OS X and Netatalk in
162 * ._ files
163 */
164 typedef enum {ADOUBLE_META, ADOUBLE_RSRC} adouble_type_t;
165
166 /* Version info */
167 #define AD_VERSION2 0x00020000
168 #define AD_VERSION AD_VERSION2
169
170 /*
171 * AppleDouble entry IDs.
172 */
173 #define ADEID_DFORK 1
174 #define ADEID_RFORK 2
175 #define ADEID_NAME 3
176 #define ADEID_COMMENT 4
177 #define ADEID_ICONBW 5
178 #define ADEID_ICONCOL 6
179 #define ADEID_FILEI 7
180 #define ADEID_FILEDATESI 8
181 #define ADEID_FINDERI 9
182 #define ADEID_MACFILEI 10
183 #define ADEID_PRODOSFILEI 11
184 #define ADEID_MSDOSFILEI 12
185 #define ADEID_SHORTNAME 13
186 #define ADEID_AFPFILEI 14
187 #define ADEID_DID 15
188
189 /* Private Netatalk entries */
190 #define ADEID_PRIVDEV 16
191 #define ADEID_PRIVINO 17
192 #define ADEID_PRIVSYN 18
193 #define ADEID_PRIVID 19
194 #define ADEID_MAX (ADEID_PRIVID + 1)
195
196 /*
197 * These are the real ids for the private entries,
198 * as stored in the adouble file
199 */
200 #define AD_DEV 0x80444556
201 #define AD_INO 0x80494E4F
202 #define AD_SYN 0x8053594E
203 #define AD_ID 0x8053567E
204
205 /* Number of actually used entries */
206 #define ADEID_NUM_XATTR 8
207 #define ADEID_NUM_DOT_UND 2
208 #define ADEID_NUM_RSRC_XATTR 1
209
210 /* AppleDouble magic */
211 #define AD_APPLESINGLE_MAGIC 0x00051600
212 #define AD_APPLEDOUBLE_MAGIC 0x00051607
213 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
214
215 /* Sizes of relevant entry bits */
216 #define ADEDLEN_MAGIC 4
217 #define ADEDLEN_VERSION 4
218 #define ADEDLEN_FILLER 16
219 #define AD_FILLER_TAG "Netatalk " /* should be 16 bytes */
220 #define ADEDLEN_NENTRIES 2
221 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
222 ADEDLEN_FILLER + ADEDLEN_NENTRIES) /* 26 */
223 #define AD_ENTRY_LEN_EID 4
224 #define AD_ENTRY_LEN_OFF 4
225 #define AD_ENTRY_LEN_LEN 4
226 #define AD_ENTRY_LEN (AD_ENTRY_LEN_EID + AD_ENTRY_LEN_OFF + AD_ENTRY_LEN_LEN)
227
228 /* Field widths */
229 #define ADEDLEN_NAME 255
230 #define ADEDLEN_COMMENT 200
231 #define ADEDLEN_FILEI 16
232 #define ADEDLEN_FINDERI 32
233 #define ADEDLEN_FILEDATESI 16
234 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
235 #define ADEDLEN_AFPFILEI 4
236 #define ADEDLEN_MACFILEI 4
237 #define ADEDLEN_PRODOSFILEI 8
238 #define ADEDLEN_MSDOSFILEI 2
239 #define ADEDLEN_DID 4
240 #define ADEDLEN_PRIVDEV 8
241 #define ADEDLEN_PRIVINO 8
242 #define ADEDLEN_PRIVSYN 8
243 #define ADEDLEN_PRIVID 4
244
245 /* Offsets */
246 #define ADEDOFF_MAGIC 0
247 #define ADEDOFF_VERSION (ADEDOFF_MAGIC + ADEDLEN_MAGIC)
248 #define ADEDOFF_FILLER (ADEDOFF_VERSION + ADEDLEN_VERSION)
249 #define ADEDOFF_NENTRIES (ADEDOFF_FILLER + ADEDLEN_FILLER)
250
251 #define ADEDOFF_FINDERI_XATTR (AD_HEADER_LEN + \
252 (ADEID_NUM_XATTR * AD_ENTRY_LEN))
253 #define ADEDOFF_COMMENT_XATTR (ADEDOFF_FINDERI_XATTR + ADEDLEN_FINDERI)
254 #define ADEDOFF_FILEDATESI_XATTR (ADEDOFF_COMMENT_XATTR + ADEDLEN_COMMENT)
255 #define ADEDOFF_AFPFILEI_XATTR (ADEDOFF_FILEDATESI_XATTR + \
256 ADEDLEN_FILEDATESI)
257 #define ADEDOFF_PRIVDEV_XATTR (ADEDOFF_AFPFILEI_XATTR + ADEDLEN_AFPFILEI)
258 #define ADEDOFF_PRIVINO_XATTR (ADEDOFF_PRIVDEV_XATTR + ADEDLEN_PRIVDEV)
259 #define ADEDOFF_PRIVSYN_XATTR (ADEDOFF_PRIVINO_XATTR + ADEDLEN_PRIVINO)
260 #define ADEDOFF_PRIVID_XATTR (ADEDOFF_PRIVSYN_XATTR + ADEDLEN_PRIVSYN)
261
262 #define ADEDOFF_FINDERI_DOT_UND (AD_HEADER_LEN + \
263 (ADEID_NUM_DOT_UND * AD_ENTRY_LEN))
264 #define ADEDOFF_RFORK_DOT_UND (ADEDOFF_FINDERI_DOT_UND + ADEDLEN_FINDERI)
265
266 #define AD_DATASZ_XATTR (AD_HEADER_LEN + \
267 (ADEID_NUM_XATTR * AD_ENTRY_LEN) + \
268 ADEDLEN_FINDERI + ADEDLEN_COMMENT + \
269 ADEDLEN_FILEDATESI + ADEDLEN_AFPFILEI + \
270 ADEDLEN_PRIVDEV + ADEDLEN_PRIVINO + \
271 ADEDLEN_PRIVSYN + ADEDLEN_PRIVID)
272
273 #if AD_DATASZ_XATTR != 402
274 #error bad size for AD_DATASZ_XATTR
275 #endif
276
277 #define AD_DATASZ_DOT_UND (AD_HEADER_LEN + \
278 (ADEID_NUM_DOT_UND * AD_ENTRY_LEN) + \
279 ADEDLEN_FINDERI)
280 #if AD_DATASZ_DOT_UND != 82
281 #error bad size for AD_DATASZ_DOT_UND
282 #endif
283
284 /*
285 * Sharemode locks fcntl() offsets
286 */
287 #if _FILE_OFFSET_BITS == 64 || defined(HAVE_LARGEFILE)
288 #define AD_FILELOCK_BASE (UINT64_C(0x7FFFFFFFFFFFFFFF) - 9)
289 #else
290 #define AD_FILELOCK_BASE (UINT32_C(0x7FFFFFFF) - 9)
291 #endif
292 #define BYTELOCK_MAX (AD_FILELOCK_BASE - 1)
293
294 #define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
295 #define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
296 #define AD_FILELOCK_RSRC_OPEN_WR (AD_FILELOCK_BASE + 2)
297 #define AD_FILELOCK_RSRC_OPEN_RD (AD_FILELOCK_BASE + 3)
298 #define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 4)
299 #define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 5)
300 #define AD_FILELOCK_RSRC_DENY_WR (AD_FILELOCK_BASE + 6)
301 #define AD_FILELOCK_RSRC_DENY_RD (AD_FILELOCK_BASE + 7)
302 #define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 8)
303 #define AD_FILELOCK_RSRC_OPEN_NONE (AD_FILELOCK_BASE + 9)
304
305 /* Time stuff we overload the bits a little */
306 #define AD_DATE_CREATE 0
307 #define AD_DATE_MODIFY 4
308 #define AD_DATE_BACKUP 8
309 #define AD_DATE_ACCESS 12
310 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
311 AD_DATE_BACKUP | AD_DATE_ACCESS)
312 #define AD_DATE_UNIX (1 << 10)
313 #define AD_DATE_START 0x80000000
314 #define AD_DATE_DELTA 946684800
315 #define AD_DATE_FROM_UNIX(x) (htonl((x) - AD_DATE_DELTA))
316 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
317
318 /* Accessor macros */
319 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
320 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
321 #define ad_setentrylen(ad,eid,len) ((ad)->ad_eid[(eid)].ade_len = (len))
322 #define ad_setentryoff(ad,eid,off) ((ad)->ad_eid[(eid)].ade_off = (off))
323 #define ad_entry(ad,eid) ((ad)->ad_data + ad_getentryoff((ad),(eid)))
324
325 struct ad_entry {
326 size_t ade_off;
327 size_t ade_len;
328 };
329
330 struct adouble {
331 vfs_handle_struct *ad_handle;
332 files_struct *ad_fsp;
333 adouble_type_t ad_type;
334 uint32_t ad_magic;
335 uint32_t ad_version;
336 struct ad_entry ad_eid[ADEID_MAX];
337 char *ad_data;
338 };
339
340 struct ad_entry_order {
341 uint32_t id, offset, len;
342 };
343
344 /* Netatalk AppleDouble metadata xattr */
345 static const
346 struct ad_entry_order entry_order_meta_xattr[ADEID_NUM_XATTR + 1] = {
347 {ADEID_FINDERI, ADEDOFF_FINDERI_XATTR, ADEDLEN_FINDERI},
348 {ADEID_COMMENT, ADEDOFF_COMMENT_XATTR, 0},
349 {ADEID_FILEDATESI, ADEDOFF_FILEDATESI_XATTR, ADEDLEN_FILEDATESI},
350 {ADEID_AFPFILEI, ADEDOFF_AFPFILEI_XATTR, ADEDLEN_AFPFILEI},
351 {ADEID_PRIVDEV, ADEDOFF_PRIVDEV_XATTR, 0},
352 {ADEID_PRIVINO, ADEDOFF_PRIVINO_XATTR, 0},
353 {ADEID_PRIVSYN, ADEDOFF_PRIVSYN_XATTR, 0},
354 {ADEID_PRIVID, ADEDOFF_PRIVID_XATTR, 0},
355 {0, 0, 0}
356 };
357
358 /* AppleDouble ressource fork file (the ones prefixed by "._") */
359 static const
360 struct ad_entry_order entry_order_dot_und[ADEID_NUM_DOT_UND + 1] = {
361 {ADEID_FINDERI, ADEDOFF_FINDERI_DOT_UND, ADEDLEN_FINDERI},
362 {ADEID_RFORK, ADEDOFF_RFORK_DOT_UND, 0},
363 {0, 0, 0}
364 };
365
366 /*
367 * Fake AppleDouble entry oder for ressource fork xattr. The xattr
368 * isn't an AppleDouble file, it simply contains the ressource data,
369 * but in order to be able to use some API calls like ad_getentryoff()
370 * we build a fake/helper struct adouble with this entry order struct.
371 */
372 static const
373 struct ad_entry_order entry_order_rsrc_xattr[ADEID_NUM_RSRC_XATTR + 1] = {
374 {ADEID_RFORK, 0, 0},
375 {0, 0, 0}
376 };
377
378 /* Conversion from enumerated id to on-disk AppleDouble id */
379 #define AD_EID_DISK(a) (set_eid[a])
380 static const uint32_t set_eid[] = {
381 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
382 AD_DEV, AD_INO, AD_SYN, AD_ID
383 };
384
385 /*
386 * Forward declarations
387 */
388 static struct adouble *ad_init(TALLOC_CTX *ctx, vfs_handle_struct *handle,
389 adouble_type_t type, files_struct *fsp);
390 static int ad_write(struct adouble *ad, const char *path);
391 static int adouble_path(TALLOC_CTX *ctx, const char *path_in, char **path_out);
392
393 /**
394 * Get a date
395 **/
396 static int ad_getdate(const struct adouble *ad,
397 unsigned int dateoff,
398 uint32_t *date)
399 {
400 bool xlate = (dateoff & AD_DATE_UNIX);
401
402 dateoff &= AD_DATE_MASK;
403 if (!ad_getentryoff(ad, ADEID_FILEDATESI)) {
404 return -1;
405 }
406
407 if (dateoff > AD_DATE_ACCESS) {
408 return -1;
409 }
410 memcpy(date,
411 ad_entry(ad, ADEID_FILEDATESI) + dateoff,
412 sizeof(uint32_t));
413
414 if (xlate) {
415 *date = AD_DATE_TO_UNIX(*date);
416 }
417 return 0;
418 }
419
420 /**
421 * Set a date
422 **/
423 static int ad_setdate(struct adouble *ad, unsigned int dateoff, uint32_t date)
424 {
425 bool xlate = (dateoff & AD_DATE_UNIX);
426
427 if (!ad_getentryoff(ad, ADEID_FILEDATESI)) {
428 return 0;
429 }
430
431 dateoff &= AD_DATE_MASK;
432 if (xlate) {
433 date = AD_DATE_FROM_UNIX(date);
434 }
435
436 if (dateoff > AD_DATE_ACCESS) {
437 return -1;
438 }
439
440 memcpy(ad_entry(ad, ADEID_FILEDATESI) + dateoff, &date, sizeof(date));
441
442 return 0;
443 }
444
445
446 /**
447 * Map on-disk AppleDouble id to enumerated id
448 **/
449 static uint32_t get_eid(uint32_t eid)
450 {
451 if (eid <= 15) {
452 return eid;
453 }
454
455 switch (eid) {
456 case AD_DEV:
457 return ADEID_PRIVDEV;
458 case AD_INO:
459 return ADEID_PRIVINO;
460 case AD_SYN:
461 return ADEID_PRIVSYN;
462 case AD_ID:
463 return ADEID_PRIVID;
464 default:
465 break;
466 }
467
468 return 0;
469 }
470
471 /**
472 * Pack AppleDouble structure into data buffer
473 **/
474 static bool ad_pack(struct adouble *ad)
475 {
476 uint32_t eid;
477 uint16_t nent;
478 uint32_t bufsize;
479 uint32_t offset = 0;
480
481 bufsize = talloc_get_size(ad->ad_data);
482
483 if (offset + ADEDLEN_MAGIC < offset ||
484 offset + ADEDLEN_MAGIC >= bufsize) {
485 return false;
486 }
487 RSIVAL(ad->ad_data, offset, ad->ad_magic);
488 offset += ADEDLEN_MAGIC;
489
490 if (offset + ADEDLEN_VERSION < offset ||
491 offset + ADEDLEN_VERSION >= bufsize) {
492 return false;
493 }
494 RSIVAL(ad->ad_data, offset, ad->ad_version);
495 offset += ADEDLEN_VERSION;
496
497 if (offset + ADEDLEN_FILLER < offset ||
498 offset + ADEDLEN_FILLER >= bufsize) {
499 return false;
500 }
501 if (ad->ad_type == ADOUBLE_RSRC) {
502 memcpy(ad->ad_data + offset, AD_FILLER_TAG, ADEDLEN_FILLER);
503 }
504 offset += ADEDLEN_FILLER;
505
506 if (offset + ADEDLEN_NENTRIES < offset ||
507 offset + ADEDLEN_NENTRIES >= bufsize) {
508 return false;
509 }
510 offset += ADEDLEN_NENTRIES;
511
512 for (eid = 0, nent = 0; eid < ADEID_MAX; eid++) {
513 if ((ad->ad_eid[eid].ade_off == 0)) {
514 /*
515 * ade_off is also used as indicator whether a
516 * specific entry is used or not
517 */
518 continue;
519 }
520
521 if (offset + AD_ENTRY_LEN_EID < offset ||
522 offset + AD_ENTRY_LEN_EID >= bufsize) {
523 return false;
524 }
525 RSIVAL(ad->ad_data, offset, AD_EID_DISK(eid));
526 offset += AD_ENTRY_LEN_EID;
527
528 if (offset + AD_ENTRY_LEN_OFF < offset ||
529 offset + AD_ENTRY_LEN_OFF >= bufsize) {
530 return false;
531 }
532 RSIVAL(ad->ad_data, offset, ad->ad_eid[eid].ade_off);
533 offset += AD_ENTRY_LEN_OFF;
534
535 if (offset + AD_ENTRY_LEN_LEN < offset ||
536 offset + AD_ENTRY_LEN_LEN >= bufsize) {
537 return false;
538 }
539 RSIVAL(ad->ad_data, offset, ad->ad_eid[eid].ade_len);
540 offset += AD_ENTRY_LEN_LEN;
541
542 nent++;
543 }
544
545 if (ADEDOFF_NENTRIES + 2 >= bufsize) {
546 return false;
547 }
548 RSSVAL(ad->ad_data, ADEDOFF_NENTRIES, nent);
549
550 return 0;
551 }
552
553 /**
554 * Unpack an AppleDouble blob into a struct adoble
555 **/
556 static bool ad_unpack(struct adouble *ad, const int nentries)
557 {
558 size_t bufsize = talloc_get_size(ad->ad_data);
559 int adentries, i;
560 uint32_t eid, len, off;
561
562 /*
563 * The size of the buffer ad->ad_data is checked when read, so
564 * we wouldn't have to check our own offsets, a few extra
565 * checks won't hurt though. We have to check the offsets we
566 * read from the buffer anyway.
567 */
568
569 if (bufsize < (AD_HEADER_LEN + (AD_ENTRY_LEN * nentries))) {
570 DEBUG(1, ("bad size\n"));
571 return false;
572 }
573
574 ad->ad_magic = RIVAL(ad->ad_data, 0);
575 ad->ad_version = RIVAL(ad->ad_data, ADEDOFF_VERSION);
576 if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION)) {
577 DEBUG(1, ("wrong magic or version\n"));
578 return false;
579 }
580
581 adentries = RSVAL(ad->ad_data, ADEDOFF_NENTRIES);
582 if (adentries != nentries) {
583 DEBUG(1, ("invalid number of entries: %d\n", adentries));
584 return false;
585 }
586
587 /* now, read in the entry bits */
588 for (i = 0; i < adentries; i++) {
589 eid = RIVAL(ad->ad_data, AD_HEADER_LEN + (i * AD_ENTRY_LEN));
590 eid = get_eid(eid);
591 off = RIVAL(ad->ad_data, AD_HEADER_LEN + (i * AD_ENTRY_LEN) + 4);
592 len = RIVAL(ad->ad_data, AD_HEADER_LEN + (i * AD_ENTRY_LEN) + 8);
593
594 if (!eid || eid > ADEID_MAX) {
595 DEBUG(1, ("bogus eid %d\n", eid));
596 return false;
597 }
598
599 if ((off > bufsize) && (eid != ADEID_RFORK)) {
600 DEBUG(1, ("bogus eid %d: off: %" PRIu32 ", len: %" PRIu32 "\n",
601 eid, off, len));
602 return false;
603 }
604 if ((eid != ADEID_RFORK) &&
605 (eid != ADEID_FINDERI) &&
606 ((off + len) > bufsize)) {
607 DEBUG(1, ("bogus eid %d: off: %" PRIu32 ", len: %" PRIu32 "\n",
608 eid, off, len));
609 return false;
610 }
611
612 ad->ad_eid[eid].ade_off = off;
613 ad->ad_eid[eid].ade_len = len;
614 }
615
616 return true;
617 }
618
619 /**
620 * Convert from Apple's ._ file to Netatalk
621 *
622 * Apple's AppleDouble may contain a FinderInfo entry longer then 32
623 * bytes containing packed xattrs. Netatalk can't deal with that, so
624 * we simply discard the packed xattrs.
625 *
626 * @return -1 in case an error occured, 0 if no conversion was done, 1
627 * otherwise
628 **/
629 static int ad_convert(struct adouble *ad, int fd)
630 {
631 int rc = 0;
632 char *map = MAP_FAILED;
633 size_t origlen;
634
635 origlen = ad_getentryoff(ad, ADEID_RFORK) +
636 ad_getentrylen(ad, ADEID_RFORK);
637
638 /* FIXME: direct use of mmap(), vfs_aio_fork does it too */
639 map = mmap(NULL, origlen, PROT_WRITE, MAP_SHARED, fd, 0);
640 if (map == MAP_FAILED) {
641 DEBUG(2, ("mmap AppleDouble: %s\n", strerror(errno)));
642 rc = -1;
643 goto exit;
644 }
645
646 memmove(map + ad_getentryoff(ad, ADEID_FINDERI) + ADEDLEN_FINDERI,
647 map + ad_getentryoff(ad, ADEID_RFORK),
648 ad_getentrylen(ad, ADEID_RFORK));
649
650 ad_setentrylen(ad, ADEID_FINDERI, ADEDLEN_FINDERI);
651 ad_setentryoff(ad, ADEID_RFORK,
652 ad_getentryoff(ad, ADEID_FINDERI) + ADEDLEN_FINDERI);
653
654 /*
655 * FIXME: direct ftruncate(), but we don't have a fsp for the
656 * VFS call
657 */
658 rc = ftruncate(fd, ad_getentryoff(ad, ADEID_RFORK)
659 + ad_getentrylen(ad, ADEID_RFORK));
660
661 exit:
662 if (map != MAP_FAILED) {
663 munmap(map, origlen);
664 }
665 return rc;
666 }
667
668 /**
669 * Read and parse Netatalk AppleDouble metadata xattr
670 **/
671 static ssize_t ad_header_read_meta(struct adouble *ad, const char *path)
672 {
673 int rc = 0;
674 ssize_t ealen;
675 bool ok;
676
677 DEBUG(10, ("reading meta xattr for %s\n", path));
678
679 ealen = SMB_VFS_GETXATTR(ad->ad_handle->conn, path,
680 AFPINFO_EA_NETATALK, ad->ad_data,
681 AD_DATASZ_XATTR);
682 if (ealen == -1) {
683 switch (errno) {
684 case ENOATTR:
685 case ENOENT:
686 if (errno == ENOATTR) {
687 errno = ENOENT;
688 }
689 rc = -1;
690 goto exit;
691 default:
692 DEBUG(2, ("error reading meta xattr: %s\n",
693 strerror(errno)));
694 rc = -1;
695 goto exit;
696 }
697 }
698 if (ealen != AD_DATASZ_XATTR) {
699 DEBUG(2, ("bad size %zd\n", ealen));
700 errno = EINVAL;
701 rc = -1;
702 goto exit;
703 }
704
705 /* Now parse entries */
706 ok = ad_unpack(ad, ADEID_NUM_XATTR);
707 if (!ok) {
708 DEBUG(2, ("invalid AppleDouble metadata xattr\n"));
709 errno = EINVAL;
710 rc = -1;
711 goto exit;
712 }
713
714 if (!ad_getentryoff(ad, ADEID_FINDERI)
715 || !ad_getentryoff(ad, ADEID_COMMENT)
716 || !ad_getentryoff(ad, ADEID_FILEDATESI)
717 || !ad_getentryoff(ad, ADEID_AFPFILEI)
718 || !ad_getentryoff(ad, ADEID_PRIVDEV)
719 || !ad_getentryoff(ad, ADEID_PRIVINO)
720 || !ad_getentryoff(ad, ADEID_PRIVSYN)
721 || !ad_getentryoff(ad, ADEID_PRIVID)) {
722 DEBUG(2, ("invalid AppleDouble metadata xattr\n"));
723 errno = EINVAL;
724 rc = -1;
725 goto exit;
726 }
727
728 exit:
729 DEBUG(10, ("reading meta xattr for %s, rc: %d\n", path, rc));
730
731 if (rc != 0) {
732 ealen = -1;
733 if (errno == EINVAL) {
734 become_root();
735 removexattr(path, AFPINFO_EA_NETATALK);
736 unbecome_root();
737 errno = ENOENT;
738 }
739 }
740 return ealen;
741 }
742
743 /**
744 * Read and parse resource fork, either ._ AppleDouble file or xattr
745 **/
746 static ssize_t ad_header_read_rsrc(struct adouble *ad, const char *path)
747 {
748 struct fruit_config_data *config = NULL;
749 int fd = -1;
750 int rc = 0;
751 ssize_t len;
752 char *adpath = NULL;
753 bool opened = false;
754 int mode;
755 struct adouble *meta_ad = NULL;
756 SMB_STRUCT_STAT sbuf;
757 bool ok;
758 int saved_errno;
759
760 SMB_VFS_HANDLE_GET_DATA(ad->ad_handle, config,
761 struct fruit_config_data, return -1);
762
763 if (ad->ad_fsp && ad->ad_fsp->fh && (ad->ad_fsp->fh->fd != -1)) {
764 fd = ad->ad_fsp->fh->fd;
765 } else {
766 if (config->rsrc == FRUIT_RSRC_XATTR) {
767 adpath = talloc_strdup(talloc_tos(), path);
768 } else {
769 rc = adouble_path(talloc_tos(), path, &adpath);
770 if (rc != 0) {
771 goto exit;
772 }
773 }
774
775 /* Try rw first so we can use the fd in ad_convert() */
776 mode = O_RDWR;
777
778 retry:
779 if (config->rsrc == FRUIT_RSRC_XATTR) {
780 #ifndef HAVE_ATTROPEN
781 errno = ENOSYS;
782 rc = -1;
783 goto exit;
784 #else
785 /* FIXME: direct Solaris xattr syscall */
786 fd = attropen(adpath, AFPRESOURCE_EA_NETATALK,
787 mode, 0);
788 #endif
789 } else {
790 /* FIXME: direct open(), don't have an fsp */
791 fd = open(adpath, mode);
792 }
793
794 if (fd == -1) {
795 switch (errno) {
796 case EROFS:
797 case EACCES:
798 if (mode == O_RDWR) {
799 mode = O_RDONLY;
800 goto retry;
801 }
802 /* fall through ... */
803 default:
804 DEBUG(2, ("open AppleDouble: %s, %s\n",
805 adpath, strerror(errno)));
806 rc = -1;
807 goto exit;
808 }
809 }
810 opened = true;
811 }
812
813 if (config->rsrc == FRUIT_RSRC_XATTR) {
814 /* FIXME: direct sys_fstat(), don't have an fsp */
815 rc = sys_fstat(
816 fd, &sbuf,
817 lp_fake_directory_create_times(
818 SNUM(ad->ad_handle->conn)));
819 if (rc != 0) {
820 rc = -1;
821 goto exit;
822 }
823 ad_setentrylen(ad, ADEID_RFORK, sbuf.st_ex_size);
824 } else {
825 /* FIXME: direct sys_pread(), don't have an fsp */
826 len = sys_pread(fd, ad->ad_data, AD_DATASZ_DOT_UND, 0);
827 if (len != AD_DATASZ_DOT_UND) {
828 DEBUG(2, ("%s: bad size: %zd\n",
829 strerror(errno), len));
830 rc = -1;
831 goto exit;
832 }
833
834 /* Now parse entries */
835 ok = ad_unpack(ad, ADEID_NUM_DOT_UND);
836 if (!ok) {
837 DEBUG(1, ("invalid AppleDouble ressource %s\n", path));
838 errno = EINVAL;
839 rc = -1;
840 goto exit;
841 }
842
843 if ((ad_getentryoff(ad, ADEID_FINDERI)
844 != ADEDOFF_FINDERI_DOT_UND)
845 || (ad_getentrylen(ad, ADEID_FINDERI)
846 < ADEDLEN_FINDERI)
847 || (ad_getentryoff(ad, ADEID_RFORK)
848 < ADEDOFF_RFORK_DOT_UND)) {
849 DEBUG(2, ("invalid AppleDouble ressource %s\n", path));
850 errno = EINVAL;
851 rc = -1;
852 goto exit;
853 }
854
855 if ((mode == O_RDWR)
856 && (ad_getentrylen(ad, ADEID_FINDERI) > ADEDLEN_FINDERI)) {
857 rc = ad_convert(ad, fd);
858 if (rc != 0) {
859 rc = -1;
860 goto exit;
861 }
862 /*
863 * Can't use ad_write() because we might not have a fsp
864 */
865 rc = ad_pack(ad);
866 if (rc != 0) {
867 goto exit;
868 }
869 /* FIXME: direct sys_pwrite(), don't have an fsp */
870 len = sys_pwrite(fd, ad->ad_data,
871 AD_DATASZ_DOT_UND, 0);
872 if (len != AD_DATASZ_DOT_UND) {
873 DEBUG(2, ("%s: bad size: %zd\n", adpath, len));
874 rc = -1;
875 goto exit;
876 }
877
878 meta_ad = ad_init(talloc_tos(), ad->ad_handle,
879 ADOUBLE_META, NULL);
880 if (meta_ad == NULL) {
881 rc = -1;
882 goto exit;
883 }
884
885 memcpy(ad_entry(meta_ad, ADEID_FINDERI),
886 ad_entry(ad, ADEID_FINDERI),
887 ADEDLEN_FINDERI);
888
889 rc = ad_write(meta_ad, path);
890 if (rc != 0) {
891 rc = -1;
892 goto exit;
893 }
894 }
895 }
896
897 DEBUG(10, ("opened AppleDouble: %s\n", path));
898
899 exit:
900 if (rc != 0) {
901 saved_errno = errno;
902 len = -1;
903 }
904 if (opened && fd != -1) {
905 close(fd);
906 }
907 TALLOC_FREE(adpath);
908 TALLOC_FREE(meta_ad);
909 if (rc != 0) {
910 errno = saved_errno;
911 }
912 return len;
913 }
914
915 /**
916 * Read and unpack an AppleDouble metadata xattr or resource
917 **/
918 static ssize_t ad_read(struct adouble *ad, const char *path)
919 {
920 switch (ad->ad_type) {
921 case ADOUBLE_META:
922 return ad_header_read_meta(ad, path);
923 case ADOUBLE_RSRC:
924 return ad_header_read_rsrc(ad, path);
925 default:
926 return -1;
927 }
928 }
929
930 /**
931 * Allocate a struct adouble without initialiing it
932 *
933 * The struct is either hang of the fsp extension context or if fsp is
934 * NULL from ctx.
935 *
936 * @param[in] ctx talloc context
937 * @param[in] handle vfs handle
938 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
939
940 * @param[in] fsp if not NULL (for stream IO), the adouble handle is
941 * added as an fsp extension
942 *
943 * @return adouble handle
944 **/
945 static struct adouble *ad_alloc(TALLOC_CTX *ctx, vfs_handle_struct *handle,
946 adouble_type_t type, files_struct *fsp)
947 {
948 int rc = 0;
949 size_t adsize = 0;
950 struct adouble *ad;
951 struct fruit_config_data *config;
952
953 SMB_VFS_HANDLE_GET_DATA(handle, config,
954 struct fruit_config_data, return NULL);
955
956 switch (type) {
957 case ADOUBLE_META:
958 adsize = AD_DATASZ_XATTR;
959 break;
960 case ADOUBLE_RSRC:
961 if (config->rsrc == FRUIT_RSRC_ADFILE) {
962 adsize = AD_DATASZ_DOT_UND;
963 }
964 break;
965 default:
966 return NULL;
967 }
968
969 if (!fsp) {
970 ad = talloc_zero(ctx, struct adouble);
971 if (ad == NULL) {
972 rc = -1;
973 goto exit;
974 }
975 if (adsize) {
976 ad->ad_data = talloc_zero_array(ad, char, adsize);
977 }
978 } else {
979 ad = (struct adouble *)VFS_ADD_FSP_EXTENSION(handle, fsp,
980 struct adouble,
981 NULL);
982 if (ad == NULL) {
983 rc = -1;
984 goto exit;
985 }
986 if (adsize) {
987 ad->ad_data = talloc_zero_array(
988 VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
989 char, adsize);
990 }
991 ad->ad_fsp = fsp;
992 }
993
994 if (adsize && ad->ad_data == NULL) {
995 rc = -1;
996 goto exit;
997 }
998 ad->ad_handle = handle;
999 ad->ad_type = type;
1000 ad->ad_magic = AD_MAGIC;
1001 ad->ad_version = AD_VERSION;
1002
1003 exit:
1004 if (rc != 0) {
1005 TALLOC_FREE(ad);
1006 }
1007 return ad;
1008 }
1009
1010 /**
1011 * Allocate and initialize a new struct adouble
1012 *
1013 * @param[in] ctx talloc context
1014 * @param[in] handle vfs handle
1015 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
1016 * @param[in] fsp file handle, may be NULL for a type of e_ad_meta
1017 *
1018 * @return adouble handle, initialized
1019 **/
1020 static struct adouble *ad_init(TALLOC_CTX *ctx, vfs_handle_struct *handle,
1021 adouble_type_t type, files_struct *fsp)
1022 {
1023 int rc = 0;
1024 const struct ad_entry_order *eid;
1025 struct adouble *ad = NULL;
1026 struct fruit_config_data *config;
1027 time_t t = time(NULL);
1028
1029 SMB_VFS_HANDLE_GET_DATA(handle, config,
1030 struct fruit_config_data, return NULL);
1031
1032 switch (type) {
1033 case ADOUBLE_META:
1034 eid = entry_order_meta_xattr;
1035 break;
1036 case ADOUBLE_RSRC:
1037 if (config->rsrc == FRUIT_RSRC_ADFILE) {
1038 eid = entry_order_dot_und;
1039 } else {
1040 eid = entry_order_rsrc_xattr;
1041 }
1042 break;
1043 default:
1044 return NULL;
1045 }
1046
1047 ad = ad_alloc(ctx, handle, type, fsp);
1048 if (ad == NULL) {
1049 return NULL;
1050 }
1051
1052 while (eid->id) {
1053 ad->ad_eid[eid->id].ade_off = eid->offset;
1054 ad->ad_eid[eid->id].ade_len = eid->len;
1055 eid++;
1056 }
1057
1058 /* put something sane in the date fields */
1059 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, t);
1060 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, t);
1061 ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, t);
1062 ad_setdate(ad, AD_DATE_BACKUP, htonl(AD_DATE_START));
1063
1064 if (rc != 0) {
1065 TALLOC_FREE(ad);
1066 }
1067 return ad;
1068 }
1069
1070 /**
1071 * Return AppleDouble data for a file
1072 *
1073 * @param[in] ctx talloc context
1074 * @param[in] handle vfs handle
1075 * @param[in] path pathname to file or directory
1076 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
1077 *
1078 * @return talloced struct adouble or NULL on error
1079 **/
1080 static struct adouble *ad_get(TALLOC_CTX *ctx, vfs_handle_struct *handle,
1081 const char *path, adouble_type_t type)
1082 {
1083 int rc = 0;
1084 ssize_t len;
1085 struct adouble *ad = NULL;
1086
1087 DEBUG(10, ("ad_get(%s) called for %s\n",
1088 type == ADOUBLE_META ? "meta" : "rsrc", path));
1089
1090 ad = ad_alloc(ctx, handle, type, NULL);
1091 if (ad == NULL) {
1092 rc = -1;
1093 goto exit;
1094 }
1095
1096 len = ad_read(ad, path);
1097 if (len == -1) {
1098 DEBUG(10, ("error reading AppleDouble for %s\n", path));
1099 rc = -1;
1100 goto exit;
1101 }
1102
1103 exit:
1104 DEBUG(10, ("ad_get(%s) for %s returning %d\n",
1105 type == ADOUBLE_META ? "meta" : "rsrc", path, rc));
1106
1107 if (rc != 0) {
1108 TALLOC_FREE(ad);
1109 }
1110 return ad;
1111 }
1112
1113 /**
1114 * Set AppleDouble metadata on a file or directory
1115 *
1116 * @param[in] ad adouble handle
1117 * @param[in] path pathname to file or directory
1118 *
1119 * @return status code, 0 means success
1120 **/
1121 static int ad_write(struct adouble *ad, const char *path)
1122 {
1123 int rc = 0;
1124 ssize_t len;
1125
1126 rc = ad_pack(ad);
1127 if (rc != 0) {
1128 goto exit;
1129 }
1130
1131 switch (ad->ad_type) {
1132 case ADOUBLE_META:
1133 rc = SMB_VFS_SETXATTR(ad->ad_handle->conn, path,
1134 AFPINFO_EA_NETATALK, ad->ad_data,
1135 AD_DATASZ_XATTR, 0);
1136 break;
1137 case ADOUBLE_RSRC:
1138 if ((ad->ad_fsp == NULL)
1139 || (ad->ad_fsp->fh == NULL)
1140 || (ad->ad_fsp->fh->fd == -1)) {
1141 rc = -1;
1142 goto exit;
1143 }
1144 /* FIXME: direct sys_pwrite(), don't have an fsp */
1145 len = sys_pwrite(ad->ad_fsp->fh->fd, ad->ad_data,
1146 talloc_get_size(ad->ad_data), 0);
1147 if (len != talloc_get_size(ad->ad_data)) {
1148 DEBUG(1, ("short write on %s: %zd", path, len));
1149 rc = -1;
1150 goto exit;
1151 }
1152 break;
1153 default:
1154 return -1;
1155 }
1156 exit:
1157 return rc;
1158 }
1159
1160 /*****************************************************************************
1161 * Helper functions
1162 *****************************************************************************/
1163
1164 static bool is_afpinfo_stream(const struct smb_filename *smb_fname)
1165 {
1166 if (strncasecmp_m(smb_fname->stream_name,
1167 AFPINFO_STREAM_NAME,
1168 strlen(AFPINFO_STREAM_NAME)) == 0) {
1169 return true;
1170 }
1171 return false;
1172 }
1173
1174 static bool is_afpresource_stream(const struct smb_filename *smb_fname)
1175 {
1176 if (strncasecmp_m(smb_fname->stream_name,
1177 AFPRESOURCE_STREAM_NAME,
1178 strlen(AFPRESOURCE_STREAM_NAME)) == 0) {
1179 return true;
1180 }
1181 return false;
1182 }
1183
1184 /**
1185 * Test whether stream is an Apple stream, not used atm
1186 **/
1187 #if 0
1188 static bool is_apple_stream(const struct smb_filename *smb_fname)
1189 {
1190 if (is_afpinfo_stream(smb_fname)) {
1191 return true;
1192 }
1193 if (is_afpresource_stream(smb_fname)) {
1194 return true;
1195 }
1196 return false;
1197 }
1198 #endif
1199
1200 /**
1201 * Initialize config struct from our smb.conf config parameters
1202 **/
1203 static int init_fruit_config(vfs_handle_struct *handle)
1204 {
1205 struct fruit_config_data *config;
1206 int enumval;
1207
1208 config = talloc_zero(handle->conn, struct fruit_config_data);
1209 if (!config) {
1210 DEBUG(1, ("talloc_zero() failed\n"));
1211 errno = ENOMEM;
1212 return -1;
1213 }
1214
1215 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1216 "ressource", fruit_rsrc, FRUIT_RSRC_ADFILE);
1217 if (enumval == -1) {
1218 DEBUG(1, ("value for %s: ressource type unknown\n",
1219 FRUIT_PARAM_TYPE_NAME));
1220 return -1;
1221 }
1222 config->rsrc = (enum fruit_rsrc)enumval;
1223
1224 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1225 "metadata", fruit_meta, FRUIT_META_NETATALK);
1226 if (enumval == -1) {
1227 DEBUG(1, ("value for %s: metadata type unknown\n",
1228 FRUIT_PARAM_TYPE_NAME));
1229 return -1;
1230 }
1231 config->meta = (enum fruit_meta)enumval;
1232
1233 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1234 "locking", fruit_locking, FRUIT_LOCKING_NONE);
1235 if (enumval == -1) {
1236 DEBUG(1, ("value for %s: locking type unknown\n",
1237 FRUIT_PARAM_TYPE_NAME));
1238 return -1;
1239 }
1240 config->locking = (enum fruit_locking)enumval;
1241
1242 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1243 "encoding", fruit_encoding, FRUIT_ENC_PRIVATE);
1244 if (enumval == -1) {
1245 DEBUG(1, ("value for %s: encoding type unknown\n",
1246 FRUIT_PARAM_TYPE_NAME));
1247 return -1;
1248 }
1249 config->encoding = (enum fruit_encoding)enumval;
1250
1251 SMB_VFS_HANDLE_SET_DATA(handle, config,
1252 NULL, struct fruit_config_data,
1253 return -1);
1254
1255 return 0;
1256 }
1257
1258 /**
1259 * Prepend "._" to a basename
1260 **/
1261 static int adouble_path(TALLOC_CTX *ctx, const char *path_in, char **path_out)
1262 {
1263 char *parent;
1264 const char *basename;
1265
1266 if (!parent_dirname(ctx, path_in, &parent, &basename)) {
1267 return -1;
1268 }
1269
1270 *path_out = talloc_asprintf(ctx, "%s/._%s", parent, basename);
1271 if (*path_out == NULL) {
1272 return -1;
1273 }
1274
1275 return 0;
1276 }
1277
1278 /**
1279 * Allocate and initialize an AfpInfo struct
1280 **/
1281 static AfpInfo *afpinfo_new(TALLOC_CTX *ctx)
1282 {
1283 AfpInfo *ai = talloc_zero(ctx, AfpInfo);
1284 if (ai == NULL) {
1285 return NULL;
1286 }
1287 ai->afpi_Signature = AFP_Signature;
1288 ai->afpi_Version = AFP_Version;
1289 ai->afpi_BackupTime = AD_DATE_START;
1290 return ai;
1291 }
1292
1293 /**
1294 * Pack an AfpInfo struct into a buffer
1295 *
1296 * Buffer size must be at least AFP_INFO_SIZE
1297 * Returns size of packed buffer
1298 **/
1299 static ssize_t afpinfo_pack(const AfpInfo *ai, char *buf)
1300 {
1301 memset(buf, 0, AFP_INFO_SIZE);
1302
1303 RSIVAL(buf, 0, ai->afpi_Signature);
1304 RSIVAL(buf, 4, ai->afpi_Version);
1305 RSIVAL(buf, 12, ai->afpi_BackupTime);
1306 memcpy(buf + 16, ai->afpi_FinderInfo, sizeof(ai->afpi_FinderInfo));
1307
1308 return AFP_INFO_SIZE;
1309 }
1310
1311 /**
1312 * Unpack a buffer into a AfpInfo structure
1313 *
1314 * Buffer size must be at least AFP_INFO_SIZE
1315 * Returns allocated AfpInfo struct
1316 **/
1317 static AfpInfo *afpinfo_unpack(TALLOC_CTX *ctx, const void *data)
1318 {
1319 AfpInfo *ai = talloc_zero(ctx, AfpInfo);
1320 if (ai == NULL) {
1321 return NULL;
1322 }
1323
1324 ai->afpi_Signature = RIVAL(data, 0);
1325 ai->afpi_Version = RIVAL(data, 4);
1326 ai->afpi_BackupTime = RIVAL(data, 12);
1327 memcpy(ai->afpi_FinderInfo, (const char *)data + 16,
1328 sizeof(ai->afpi_FinderInfo));
1329
1330 if (ai->afpi_Signature != AFP_Signature
1331 || ai->afpi_Version != AFP_Version) {
1332 DEBUG(1, ("Bad AfpInfo signature or version\n"));
1333 TALLOC_FREE(ai);
1334 }
1335
1336 return ai;
1337 }
1338
1339 /**
1340 * Fake an inode number from the md5 hash of the (xattr) name
1341 **/
1342 static SMB_INO_T fruit_inode(const SMB_STRUCT_STAT *sbuf, const char *sname)
1343 {
1344 MD5_CTX ctx;
1345 unsigned char hash[16];
1346 SMB_INO_T result;
1347 char *upper_sname;
1348
1349 upper_sname = talloc_strdup_upper(talloc_tos(), sname);
1350 SMB_ASSERT(upper_sname != NULL);
1351
1352 MD5Init(&ctx);
1353 MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_dev),
1354 sizeof(sbuf->st_ex_dev));
1355 MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_ino),
1356 sizeof(sbuf->st_ex_ino));
1357 MD5Update(&ctx, (unsigned char *)upper_sname,
1358 talloc_get_size(upper_sname)-1);
1359 MD5Final(hash, &ctx);
1360
1361 TALLOC_FREE(upper_sname);
1362
1363 /* Hopefully all the variation is in the lower 4 (or 8) bytes! */
1364 memcpy(&result, hash, sizeof(result));
1365
1366 DEBUG(10, ("fruit_inode \"%s\": ino=0x%llu\n",
1367 sname, (unsigned long long)result));
1368
1369 return result;
1370 }
1371
1372 /**
1373 * Ensure ad_fsp is still valid
1374 **/
1375 static bool fruit_fsp_recheck(struct adouble *ad, files_struct *fsp)
1376 {
1377 if (ad->ad_fsp == fsp) {
1378 return true;
1379 }
1380 ad->ad_fsp = fsp;
1381
1382 return true;
1383 }
1384
1385 static bool add_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
1386 struct stream_struct **streams,
1387 const char *name, off_t size,
1388 off_t alloc_size)
1389 {
1390 struct stream_struct *tmp;
1391
1392 tmp = talloc_realloc(mem_ctx, *streams, struct stream_struct,
1393 (*num_streams)+1);
1394 if (tmp == NULL) {
1395 return false;
1396 }
1397
1398 tmp[*num_streams].name = talloc_asprintf(tmp, "%s:$DATA", name);
1399 if (tmp[*num_streams].name == NULL) {
1400 return false;
1401 }
1402
1403 tmp[*num_streams].size = size;
1404 tmp[*num_streams].alloc_size = alloc_size;
1405
1406 *streams = tmp;
1407 *num_streams += 1;
1408 return true;
1409 }
1410
1411 static bool empty_finderinfo(const struct adouble *ad)
1412 {
1413
1414 char emptybuf[ADEDLEN_FINDERI] = {0};
1415 if (memcmp(emptybuf,
1416 ad_entry(ad, ADEID_FINDERI),
1417 ADEDLEN_FINDERI) == 0) {
1418 return true;
1419 }
1420 return false;
1421 }
1422
1423 /**
1424 * Update btime with btime from Netatalk
1425 **/
1426 static void update_btime(vfs_handle_struct *handle,
1427 struct smb_filename *smb_fname)
1428 {
1429 uint32_t t;
1430 struct timespec creation_time = {0};
1431 struct adouble *ad;
1432
1433 ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_META);
1434 if (ad == NULL) {
1435 return;
1436 }
1437 if (ad_getdate(ad, AD_DATE_UNIX | AD_DATE_CREATE, &t) != 0) {
1438 TALLOC_FREE(ad);
1439 return;
1440 }
1441 TALLOC_FREE(ad);
1442
1443 creation_time.tv_sec = convert_uint32_t_to_time_t(t);
1444 update_stat_ex_create_time(&smb_fname->st, creation_time);
1445
1446 return;
1447 }
1448
1449 /**
1450 * Map an access mask to a Netatalk single byte byte range lock
1451 **/
1452 static off_t access_to_netatalk_brl(enum apple_fork fork,
1453 uint32_t access_mask)
1454 {
1455 off_t offset;
1456
1457 switch (access_mask) {
1458 case FILE_READ_DATA:
1459 offset = AD_FILELOCK_OPEN_RD;
1460 break;
1461
1462 case FILE_WRITE_DATA:
1463 case FILE_APPEND_DATA:
1464 offset = AD_FILELOCK_OPEN_WR;
1465 break;
1466
1467 default:
1468 offset = AD_FILELOCK_OPEN_NONE;
1469 break;
1470 }
1471
1472 if (fork == APPLE_FORK_RSRC) {
1473 if (offset == AD_FILELOCK_OPEN_NONE) {
1474 offset = AD_FILELOCK_RSRC_OPEN_NONE;
1475 } else {
1476 offset += 2;
1477 }
1478 }
1479
1480 return offset;
1481 }
1482
1483 /**
1484 * Map a deny mode to a Netatalk brl
1485 **/
1486 static off_t denymode_to_netatalk_brl(enum apple_fork fork,
1487 uint32_t deny_mode)
1488 {
1489 off_t offset;
1490
1491 switch (deny_mode) {
1492 case DENY_READ:
1493 offset = AD_FILELOCK_DENY_RD;
1494 break;
1495
1496 case DENY_WRITE:
1497 offset = AD_FILELOCK_DENY_WR;
1498 break;
1499
1500 default:
1501 smb_panic("denymode_to_netatalk_brl: bad deny mode\n");
1502 }
1503
1504 if (fork == APPLE_FORK_RSRC) {
1505 offset += 2;
1506 }
1507
1508 return offset;
1509 }
1510
1511 /**
1512 * Call fcntl() with an exclusive F_GETLK request in order to
1513 * determine if there's an exisiting shared lock
1514 *
1515 * @return true if the requested lock was found or any error occured
1516 * false if the lock was not found
1517 **/
1518 static bool test_netatalk_lock(files_struct *fsp, off_t in_offset)
1519 {
1520 bool result;
1521 off_t offset = in_offset;
1522 off_t len = 1;
1523 int type = F_WRLCK;
1524 pid_t pid;
1525
1526 result = SMB_VFS_GETLOCK(fsp, &offset, &len, &type, &pid);
1527 if (result == false) {
1528 return true;
1529 }
1530
1531 if (type != F_UNLCK) {
1532 return true;
1533 }
1534
1535 return false;
1536 }
1537
1538 static NTSTATUS fruit_check_access(vfs_handle_struct *handle,
1539 files_struct *fsp,
1540 uint32_t access_mask,
1541 uint32_t deny_mode)
1542 {
1543 NTSTATUS status = NT_STATUS_OK;
1544 struct byte_range_lock *br_lck = NULL;
1545 bool open_for_reading, open_for_writing, deny_read, deny_write;
1546 off_t off;
1547
1548 /* FIXME: hardcoded data fork, add resource fork */
1549 enum apple_fork fork = APPLE_FORK_DATA;
1550
1551 DEBUG(10, ("fruit_check_access: %s, am: %s/%s, dm: %s/%s\n",
1552 fsp_str_dbg(fsp),
1553 access_mask & FILE_READ_DATA ? "READ" :"-",
1554 access_mask & FILE_WRITE_DATA ? "WRITE" : "-",
1555 deny_mode & DENY_READ ? "DENY_READ" : "-",
1556 deny_mode & DENY_WRITE ? "DENY_WRITE" : "-"));
1557
1558 /*
1559 * Check read access and deny read mode
1560 */
1561 if ((access_mask & FILE_READ_DATA) || (deny_mode & DENY_READ)) {
1562 /* Check access */
1563 open_for_reading = test_netatalk_lock(
1564 fsp, access_to_netatalk_brl(fork, FILE_READ_DATA));
1565
1566 deny_read = test_netatalk_lock(
1567 fsp, denymode_to_netatalk_brl(fork, DENY_READ));
1568
1569 DEBUG(10, ("read: %s, deny_write: %s\n",
1570 open_for_reading == true ? "yes" : "no",
1571 deny_read == true ? "yes" : "no"));
1572
1573 if (((access_mask & FILE_READ_DATA) && deny_read)
1574 || ((deny_mode & DENY_READ) && open_for_reading)) {
1575 return NT_STATUS_SHARING_VIOLATION;
1576 }
1577
1578 /* Set locks */
1579 if (access_mask & FILE_READ_DATA) {
1580 off = access_to_netatalk_brl(fork, FILE_READ_DATA);
1581 br_lck = do_lock(
1582 handle->conn->sconn->msg_ctx, fsp,
1583 fsp->op->global->open_persistent_id, 1, off,
1584 READ_LOCK, POSIX_LOCK, false,
1585 &status, NULL);
1586
1587 if (!NT_STATUS_IS_OK(status)) {
1588 return status;
1589 }
1590 TALLOC_FREE(br_lck);
1591 }
1592
1593 if (deny_mode & DENY_READ) {
1594 off = denymode_to_netatalk_brl(fork, DENY_READ);
1595 br_lck = do_lock(
1596 handle->conn->sconn->msg_ctx, fsp,
1597 fsp->op->global->open_persistent_id, 1, off,
1598 READ_LOCK, POSIX_LOCK, false,
1599 &status, NULL);
1600
1601 if (!NT_STATUS_IS_OK(status)) {
1602 return status;
1603 }
1604 TALLOC_FREE(br_lck);
1605 }
1606 }
1607
1608 /*
1609 * Check write access and deny write mode
1610 */
1611 if ((access_mask & FILE_WRITE_DATA) || (deny_mode & DENY_WRITE)) {
1612 /* Check access */
1613 open_for_writing = test_netatalk_lock(
1614 fsp, access_to_netatalk_brl(fork, FILE_WRITE_DATA));
1615
1616 deny_write = test_netatalk_lock(
1617 fsp, denymode_to_netatalk_brl(fork, DENY_WRITE));
1618
1619 DEBUG(10, ("write: %s, deny_write: %s\n",
1620 open_for_writing == true ? "yes" : "no",
1621 deny_write == true ? "yes" : "no"));
1622
1623 if (((access_mask & FILE_WRITE_DATA) && deny_write)
1624 || ((deny_mode & DENY_WRITE) && open_for_writing)) {
1625 return NT_STATUS_SHARING_VIOLATION;
1626 }
1627
1628 /* Set locks */
1629 if (access_mask & FILE_WRITE_DATA) {
1630 off = access_to_netatalk_brl(fork, FILE_WRITE_DATA);
1631 br_lck = do_lock(
1632 handle->conn->sconn->msg_ctx, fsp,
1633 fsp->op->global->open_persistent_id, 1, off,
1634 READ_LOCK, POSIX_LOCK, false,
1635 &status, NULL);
1636
1637 if (!NT_STATUS_IS_OK(status)) {
1638 return status;
1639 }
1640 TALLOC_FREE(br_lck);
1641
1642 }
1643 if (deny_mode & DENY_WRITE) {
1644 off = denymode_to_netatalk_brl(fork, DENY_WRITE);
1645 br_lck = do_lock(
1646 handle->conn->sconn->msg_ctx, fsp,
1647 fsp->op->global->open_persistent_id, 1, off,
1648 READ_LOCK, POSIX_LOCK, false,
1649 &status, NULL);
1650
1651 if (!NT_STATUS_IS_OK(status)) {
1652 return status;
1653 }
1654 TALLOC_FREE(br_lck);
1655 }
1656 }
1657
1658 TALLOC_FREE(br_lck);
1659
1660 return status;
1661 }
1662
1663 /****************************************************************************
1664 * VFS ops
1665 ****************************************************************************/
1666
1667 static int fruit_connect(vfs_handle_struct *handle,
1668 const char *service,
1669 const char *user)
1670 {
1671 int rc;
1672 char *list = NULL, *newlist = NULL;
1673 struct fruit_config_data *config;
1674
1675 DEBUG(10, ("fruit_connect\n"));
1676
1677 rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
1678 if (rc < 0) {
1679 return rc;
1680 }
1681
1682 list = lp_veto_files(talloc_tos(), SNUM(handle->conn));
1683
1684 if (list) {
1685 if (strstr(list, "/" ADOUBLE_NAME_PREFIX "*/") == NULL) {
1686 newlist = talloc_asprintf(
1687 list,
1688 "%s/" ADOUBLE_NAME_PREFIX "*/",
1689 list);
1690 lp_do_parameter(SNUM(handle->conn),
1691 "veto files",
1692 newlist);
1693 }
1694 } else {
1695 lp_do_parameter(SNUM(handle->conn),
1696 "veto files",
1697 "/" ADOUBLE_NAME_PREFIX "*/");
1698 }
1699
1700 TALLOC_FREE(list);
1701
1702 rc = init_fruit_config(handle);
1703 if (rc != 0) {
1704 return rc;
1705 }
1706
1707 SMB_VFS_HANDLE_GET_DATA(handle, config,
1708 struct fruit_config_data, return -1);
1709
1710 if (config->encoding == FRUIT_ENC_NATIVE) {
1711 lp_do_parameter(
1712 SNUM(handle->conn),
1713 "catia:mappings",
1714 "0x22:0xf020,0x2a:0xf021,0x3a:0xf022,0x3c:0xf023,"
1715 "0x3e:0xf024,0x3f:0xf025,0x5c:0xf026,0x7c:0xf027,"
1716 "0x0d:0xf00d");
1717 }
1718
1719 return rc;
1720 }
1721
1722 static int fruit_open_meta(vfs_handle_struct *handle,
1723 struct smb_filename *smb_fname,
1724 files_struct *fsp, int flags, mode_t mode)
1725 {
1726 int rc = 0;
1727 struct fruit_config_data *config = NULL;
1728 struct smb_filename *smb_fname_base = NULL;
1729 int baseflags;
1730 int hostfd = -1;
1731 struct adouble *ad = NULL;
1732
1733 DEBUG(10, ("fruit_open_meta for %s\n", smb_fname_str_dbg(smb_fname)));
1734
1735 SMB_VFS_HANDLE_GET_DATA(handle, config,
1736 struct fruit_config_data, return -1);
1737
1738 if (config->meta == FRUIT_META_STREAM) {
1739 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1740 }
1741
1742 /* Create an smb_filename with stream_name == NULL. */
1743 smb_fname_base = synthetic_smb_fname(talloc_tos(),
1744 smb_fname->base_name, NULL, NULL);
1745
1746 if (smb_fname_base == NULL) {
1747 errno = ENOMEM;
1748 rc = -1;
1749 goto exit;
1750 }
1751
1752 /*
1753 * We use baseflags to turn off nasty side-effects when opening the
1754 * underlying file.
1755 */
1756 baseflags = flags;
1757 baseflags &= ~O_TRUNC;
1758 baseflags &= ~O_EXCL;
1759 baseflags &= ~O_CREAT;
1760
1761 hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
1762 baseflags, mode);
1763
1764 /*
1765 * It is legit to open a stream on a directory, but the base
1766 * fd has to be read-only.
1767 */
1768 if ((hostfd == -1) && (errno == EISDIR)) {
1769 baseflags &= ~O_ACCMODE;
1770 baseflags |= O_RDONLY;
1771 hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
1772 baseflags, mode);
1773 }
1774
1775 TALLOC_FREE(smb_fname_base);
1776
1777 if (hostfd == -1) {
1778 rc = -1;
1779 goto exit;
1780 }
1781
1782 if (flags & (O_CREAT | O_TRUNC)) {
1783 /*
1784 * The attribute does not exist or needs to be truncated,
1785 * create an AppleDouble EA
1786 */
1787 ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1788 handle, ADOUBLE_META, fsp);
1789 if (ad == NULL) {
1790 rc = -1;
1791 goto exit;
1792 }
1793
1794 rc = ad_write(ad, smb_fname->base_name);
1795 if (rc != 0) {
1796 rc = -1;
1797 goto exit;
1798 }
1799 } else {
1800 ad = ad_alloc(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1801 handle, ADOUBLE_META, fsp);
1802 if (ad == NULL) {
1803 rc = -1;
1804 goto exit;
1805 }
1806 if (ad_read(ad, smb_fname->base_name) == -1) {
1807 rc = -1;
1808 goto exit;
1809 }
1810 }
1811
1812 exit:
1813 DEBUG(10, ("fruit_open meta rc=%d, fd=%d\n", rc, hostfd));
1814 if (rc != 0) {
1815 int saved_errno = errno;
1816 if (hostfd >= 0) {
1817 /*
1818 * BUGBUGBUG -- we would need to call
1819 * fd_close_posix here, but we don't have a
1820 * full fsp yet
1821 */
1822 fsp->fh->fd = hostfd;
1823 SMB_VFS_CLOSE(fsp);
1824 }
1825 hostfd = -1;
1826 errno = saved_errno;
1827 }
1828 return hostfd;
1829 }
1830
1831 static int fruit_open_rsrc(vfs_handle_struct *handle,
1832 struct smb_filename *smb_fname,
1833 files_struct *fsp, int flags, mode_t mode)
1834 {
1835 int rc = 0;
1836 struct fruit_config_data *config = NULL;
1837 struct adouble *ad = NULL;
1838 struct smb_filename *smb_fname_base = NULL;
1839 char *adpath = NULL;
1840 int hostfd = -1;
1841
1842 DEBUG(10, ("fruit_open_rsrc for %s\n", smb_fname_str_dbg(smb_fname)));
1843
1844 SMB_VFS_HANDLE_GET_DATA(handle, config,
1845 struct fruit_config_data, return -1);
1846
1847 switch (config->rsrc) {
1848 case FRUIT_RSRC_STREAM:
1849 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1850 case FRUIT_RSRC_XATTR:
1851 #ifdef HAVE_ATTROPEN
1852 hostfd = attropen(smb_fname->base_name,
1853 AFPRESOURCE_EA_NETATALK, flags, mode);
1854 if (hostfd == -1) {
1855 return -1;
1856 }
1857 ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1858 handle, ADOUBLE_RSRC, fsp);
1859 if (ad == NULL) {
1860 rc = -1;
1861 goto exit;
1862 }
1863 goto exit;
1864 #else
1865 errno = ENOTSUP;
1866 return -1;
1867 #endif
1868 default:
1869 break;
1870 }
1871
1872 if (!(flags & O_CREAT) && !VALID_STAT(smb_fname->st)) {
1873 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
1874 if (rc != 0) {
1875 rc = -1;
1876 goto exit;
1877 }
1878 }
1879
1880 if (VALID_STAT(smb_fname->st) && S_ISDIR(smb_fname->st.st_ex_mode)) {
1881 /* sorry, but directories don't habe a resource fork */
1882 rc = -1;
1883 goto exit;
1884 }
1885
1886 rc = adouble_path(talloc_tos(), smb_fname->base_name, &adpath);
1887 if (rc != 0) {
1888 goto exit;
1889 }
1890
1891 /* Create an smb_filename with stream_name == NULL. */
1892 smb_fname_base = synthetic_smb_fname(talloc_tos(),
1893 adpath, NULL, NULL);
1894 if (smb_fname_base == NULL) {
1895 errno = ENOMEM;
1896 rc = -1;
1897 goto exit;
1898 }
1899
1900 /* Sanitize flags */
1901 if (flags & O_WRONLY) {
1902 /* We always need read access for the metadata header too */
1903 flags &= ~O_WRONLY;
1904 flags |= O_RDWR;
1905 }
1906
1907 hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
1908 flags, mode);
1909 if (hostfd == -1) {
1910 rc = -1;
1911 goto exit;
1912 }
1913
1914 /* REVIEW: we need this in ad_write() */
1915 fsp->fh->fd = hostfd;
1916
1917 if (flags & (O_CREAT | O_TRUNC)) {
1918 ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1919 handle, ADOUBLE_RSRC, fsp);
1920 if (ad == NULL) {
1921 rc = -1;
1922 goto exit;
1923 }
1924 rc = ad_write(ad, smb_fname->base_name);
1925 if (rc != 0) {
1926 rc = -1;
1927 goto exit;
1928 }
1929 } else {
1930 ad = ad_alloc(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1931 handle, ADOUBLE_RSRC, fsp);
1932 if (ad == NULL) {
1933 rc = -1;
1934 goto exit;
1935 }
1936 if (ad_read(ad, smb_fname->base_name) == -1) {
1937 rc = -1;
1938 goto exit;
1939 }
1940 }
1941
1942 exit:
1943
1944 TALLOC_FREE(adpath);
1945 TALLOC_FREE(smb_fname_base);
1946
1947 DEBUG(10, ("fruit_open resource fork: rc=%d, fd=%d\n", rc, hostfd));
1948 if (rc != 0) {
1949 int saved_errno = errno;
1950 if (hostfd >= 0) {
1951 /*
1952 * BUGBUGBUG -- we would need to call
1953 * fd_close_posix here, but we don't have a
1954 * full fsp yet
1955 */
1956 fsp->fh->fd = hostfd;
1957 SMB_VFS_CLOSE(fsp);
1958 }
1959 hostfd = -1;
1960 errno = saved_errno;
1961 }
1962 return hostfd;
1963 }
1964
1965 static int fruit_open(vfs_handle_struct *handle,
1966 struct smb_filename *smb_fname,
1967 files_struct *fsp, int flags, mode_t mode)
1968 {
1969 DEBUG(10, ("fruit_open called for %s\n",
1970 smb_fname_str_dbg(smb_fname)));
1971
1972 if (!is_ntfs_stream_smb_fname(smb_fname)) {
1973 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1974 }
1975
1976 if (is_afpinfo_stream(smb_fname)) {
1977 return fruit_open_meta(handle, smb_fname, fsp, flags, mode);
1978 } else if (is_afpresource_stream(smb_fname)) {
1979 return fruit_open_rsrc(handle, smb_fname, fsp, flags, mode);
1980 }
1981
1982 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1983 }
1984
1985 static int fruit_rename(struct vfs_handle_struct *handle,
1986 const struct smb_filename *smb_fname_src,
1987 const struct smb_filename *smb_fname_dst)
1988 {
1989 int rc = -1;
1990 char *src_adouble_path = NULL;
1991 char *dst_adouble_path = NULL;
1992 struct fruit_config_data *config = NULL;
1993
1994 rc = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
1995
1996 if (!VALID_STAT(smb_fname_src->st)
1997 || !S_ISREG(smb_fname_src->st.st_ex_mode)) {
1998 return rc;
1999 }
2000
2001 SMB_VFS_HANDLE_GET_DATA(handle, config,
2002 struct fruit_config_data, return -1);
2003
2004 if (config->rsrc == FRUIT_RSRC_XATTR) {
2005 return rc;
2006 }
2007
2008 rc = adouble_path(talloc_tos(), smb_fname_src->base_name,
2009 &src_adouble_path);
2010 if (rc != 0) {
2011 goto done;
2012 }
2013 rc = adouble_path(talloc_tos(), smb_fname_dst->base_name,
2014 &dst_adouble_path);
2015 if (rc != 0) {
2016 goto done;
2017 }
2018
2019 DEBUG(10, ("fruit_rename: %s -> %s\n",
2020 src_adouble_path, dst_adouble_path));
2021
2022 rc = rename(src_adouble_path, dst_adouble_path);
2023 if (errno == ENOENT) {
2024 rc = 0;
2025 }
2026
2027 TALLOC_FREE(src_adouble_path);
2028 TALLOC_FREE(dst_adouble_path);
2029
2030 done:
2031 return rc;
2032 }
2033
2034 static int fruit_unlink(vfs_handle_struct *handle,
2035 const struct smb_filename *smb_fname)
2036 {
2037 int rc = -1;
2038 struct fruit_config_data *config = NULL;
2039 char *adp = NULL;
2040
2041 if (!is_ntfs_stream_smb_fname(smb_fname)) {
2042 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
2043 }
2044
2045 SMB_VFS_HANDLE_GET_DATA(handle, config,
2046 struct fruit_config_data, return -1);
2047
2048 if (is_afpinfo_stream(smb_fname)) {
2049 if (config->meta == FRUIT_META_STREAM) {
2050 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
2051 } else {
2052 rc = SMB_VFS_REMOVEXATTR(handle->conn,
2053 smb_fname->base_name,
2054 AFPINFO_EA_NETATALK);
2055 }
2056 } else if (is_afpresource_stream(smb_fname)) {
2057 if (config->rsrc == FRUIT_RSRC_ADFILE) {
2058 rc = adouble_path(talloc_tos(),
2059 smb_fname->base_name, &adp);
2060 if (rc != 0) {
2061 return -1;
2062 }
2063 /* FIXME: direct unlink(), missing smb_fname */
2064 rc = unlink(adp);
2065 if ((rc == -1) && (errno == ENOENT)) {
2066 rc = 0;
2067 }
2068 } else {
2069 rc = SMB_VFS_REMOVEXATTR(handle->conn,
2070 smb_fname->base_name,
2071 AFPRESOURCE_EA_NETATALK);
2072 }
2073 } else {
2074 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
2075 }
2076
2077 TALLOC_FREE(adp);
2078 return rc;
2079 }
2080
2081 static int fruit_chmod(vfs_handle_struct *handle,
2082 const char *path,
2083 mode_t mode)
2084 {
2085 int rc = -1;
2086 char *adp = NULL;
2087 struct fruit_config_data *config = NULL;
2088 SMB_STRUCT_STAT sb;
2089
2090 rc = SMB_VFS_NEXT_CHMOD(handle, path, mode);
2091 if (rc != 0) {
2092 return rc;
2093 }
2094
2095 SMB_VFS_HANDLE_GET_DATA(handle, config,
2096 struct fruit_config_data, return -1);
2097
2098 if (config->rsrc == FRUIT_RSRC_XATTR) {
2099 return 0;
2100 }
2101
2102 /* FIXME: direct sys_lstat(), missing smb_fname */
2103 rc = sys_lstat(path, &sb, false);
2104 if (rc != 0 || !S_ISREG(sb.st_ex_mode)) {
2105 return rc;
2106 }
2107
2108 rc = adouble_path(talloc_tos(), path, &adp);
2109 if (rc != 0) {
2110 return -1;
2111 }
2112
2113 DEBUG(10, ("fruit_chmod: %s\n", adp));
2114
2115 rc = SMB_VFS_NEXT_CHMOD(handle, adp, mode);
2116 if (errno == ENOENT) {
2117 rc = 0;
2118 }
2119
2120 TALLOC_FREE(adp);
2121 return rc;
2122 }
2123
2124 static int fruit_chown(vfs_handle_struct *handle,
2125 const char *path,
2126 uid_t uid,
2127 gid_t gid)
2128 {
2129 int rc = -1;
2130 char *adp = NULL;
2131 struct fruit_config_data *config = NULL;
2132 SMB_STRUCT_STAT sb;
2133
2134 rc = SMB_VFS_NEXT_CHOWN(handle, path, uid, gid);
2135 if (rc != 0) {
2136 return rc;
2137 }
2138
2139 SMB_VFS_HANDLE_GET_DATA(handle, config,
2140 struct fruit_config_data, return -1);
2141
2142 if (config->rsrc == FRUIT_RSRC_XATTR) {
2143 return rc;
2144 }
2145
2146 /* FIXME: direct sys_lstat(), missing smb_fname */
2147 rc = sys_lstat(path, &sb, false);
2148 if (rc != 0 || !S_ISREG(sb.st_ex_mode)) {
2149 return rc;
2150 }
2151
2152 rc = adouble_path(talloc_tos(), path, &adp);
2153 if (rc != 0) {
2154 goto done;
2155 }
2156
2157 DEBUG(10, ("fruit_chown: %s\n", adp));
2158
2159 rc = SMB_VFS_NEXT_CHOWN(handle, adp, uid, gid);
2160 if (errno == ENOENT) {
2161 rc = 0;
2162 }
2163
2164 done:
2165 TALLOC_FREE(adp);
2166 return rc;
2167 }
2168
2169 static int fruit_rmdir(struct vfs_handle_struct *handle, const char *path)
2170 {
2171 DIR *dh = NULL;
2172 struct dirent *de;
2173 struct fruit_config_data *config;
2174
2175 SMB_VFS_HANDLE_GET_DATA(handle, config,
2176 struct fruit_config_data, return -1);
2177
2178 if (!handle->conn->cwd || !path || (config->rsrc == FRUIT_RSRC_XATTR)) {
2179 goto exit_rmdir;
2180 }
2181
2182 /*
2183 * Due to there is no way to change bDeleteVetoFiles variable
2184 * from this module, need to clean up ourselves
2185 */
2186 dh = opendir(path);
2187 if (dh == NULL) {
2188 goto exit_rmdir;
2189 }
2190
2191 while ((de = readdir(dh)) != NULL) {
2192 if ((strncmp(de->d_name,
2193 ADOUBLE_NAME_PREFIX,
2194 strlen(ADOUBLE_NAME_PREFIX))) == 0) {
2195 char *p = talloc_asprintf(talloc_tos(),
2196 "%s/%s",
2197 path, de->d_name);
2198 if (p == NULL) {
2199 goto exit_rmdir;
2200 }
2201 DEBUG(10, ("fruit_rmdir: delete %s\n", p));
2202 (void)unlink(p);
2203 TALLOC_FREE(p);
2204 }
2205 }
2206
2207 exit_rmdir:
2208 if (dh) {
2209 closedir(dh);
2210 }
2211 return SMB_VFS_NEXT_RMDIR(handle, path);
2212 }
2213
2214 static ssize_t fruit_pread(vfs_handle_struct *handle,
2215 files_struct *fsp, void *data,
2216 size_t n, off_t offset)
2217 {
2218 int rc = 0;
2219 struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
2220 handle, fsp);
2221 struct fruit_config_data *config = NULL;
2222 AfpInfo *ai = NULL;
2223 ssize_t len;
2224 char *name = NULL;
2225 char *tmp_base_name = NULL;
2226 NTSTATUS status;
2227
2228 DEBUG(10, ("fruit_pread: offset=%d, size=%d\n", (int)offset, (int)n));
2229
2230 if (!fsp->base_fsp) {
2231 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2232 }
2233
2234 SMB_VFS_HANDLE_GET_DATA(handle, config,
2235 struct fruit_config_data, return -1);
2236
2237 /* fsp_name is not converted with vfs_catia */
2238 tmp_base_name = fsp->base_fsp->fsp_name->base_name;
2239 status = SMB_VFS_TRANSLATE_NAME(handle->conn,
2240 fsp->base_fsp->fsp_name->base_name,
2241 vfs_translate_to_unix,
2242 talloc_tos(), &name);
2243 if (!NT_STATUS_IS_OK(status)) {
2244 errno = map_errno_from_nt_status(status);
2245 rc = -1;
2246 goto exit;
2247 }
2248 fsp->base_fsp->fsp_name->base_name = name;
2249
2250 if (ad == NULL) {
2251 len = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2252 if (len == -1) {
2253 rc = -1;
2254 goto exit;
2255 }
2256 goto exit;
2257 }
2258
2259 if (!fruit_fsp_recheck(ad, fsp)) {
2260 rc = -1;
2261 goto exit;
2262 }
2263
2264 if (ad->ad_type == ADOUBLE_META) {
2265 ai = afpinfo_new(talloc_tos());
2266 if (ai == NULL) {
2267 rc = -1;
2268 goto exit;
2269 }
2270
2271 len = ad_read(ad, fsp->base_fsp->fsp_name->base_name);
2272 if (len == -1) {
2273 rc = -1;
2274 goto exit;
2275 }
2276
2277 memcpy(&ai->afpi_FinderInfo[0],
2278 ad_entry(ad, ADEID_FINDERI),
2279 ADEDLEN_FINDERI);
2280 len = afpinfo_pack(ai, data);
2281 if (len != AFP_INFO_SIZE) {
2282 rc = -1;
2283 goto exit;
2284 }
2285 } else {
2286 len = SMB_VFS_NEXT_PREAD(
2287 handle, fsp, data, n,
2288 offset + ad_getentryoff(ad, ADEID_RFORK));
2289 if (len == -1) {
2290 rc = -1;
2291 goto exit;
2292 }
2293 }
2294 exit:
2295 fsp->base_fsp->fsp_name->base_name = tmp_base_name;
2296 TALLOC_FREE(name);
2297 TALLOC_FREE(ai);
2298 if (rc != 0) {
2299 len = -1;
2300 }
2301 DEBUG(10, ("fruit_pread: rc=%d, len=%zd\n", rc, len));
2302 return len;
2303 }
2304
2305 static ssize_t fruit_pwrite(vfs_handle_struct *handle,
2306 files_struct *fsp, const void *data,
2307 size_t n, off_t offset)
2308 {
2309 int rc = 0;
2310 struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
2311 handle, fsp);
2312 struct fruit_config_data *config = NULL;
2313 AfpInfo *ai = NULL;
2314 ssize_t len, new_rfork_size;
2315 char *name = NULL;
2316 char *tmp_base_name = NULL;
2317 NTSTATUS status;
2318
2319 DEBUG(10, ("fruit_pwrite: offset=%d, size=%d\n", (int)offset, (int)n));
2320
2321 if (!fsp->base_fsp) {
2322 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2323 }
2324
2325 SMB_VFS_HANDLE_GET_DATA(handle, config,
2326 struct fruit_config_data, return -1);
2327
2328 tmp_base_name = fsp->base_fsp->fsp_name->base_name;
2329 status = SMB_VFS_TRANSLATE_NAME(handle->conn,
2330 fsp->base_fsp->fsp_name->base_name,
2331 vfs_translate_to_unix,
2332 talloc_tos(), &name);
2333 if (!NT_STATUS_IS_OK(status)) {
2334 errno = map_errno_from_nt_status(status);
2335 rc = -1;
2336 goto exit;
2337 }
2338 fsp->base_fsp->fsp_name->base_name = name;
2339
2340 if (ad == NULL) {
2341 len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2342 if (len != n) {
2343 rc = -1;
2344 goto exit;
2345 }
2346 goto exit;
2347 }
2348
2349 if (!fruit_fsp_recheck(ad, fsp)) {
2350 rc = -1;
2351 goto exit;
2352 }
2353
2354 if (ad->ad_type == ADOUBLE_META) {
2355 if (n != AFP_INFO_SIZE || offset != 0) {
2356 DEBUG(1, ("unexpected offset=%jd or size=%jd\n",
2357 (intmax_t)offset, (intmax_t)n));
2358 rc = -1;
2359 goto exit;
2360 }
2361 ai = afpinfo_unpack(talloc_tos(), data);
2362 if (ai == NULL) {
2363 rc = -1;
2364 goto exit;
2365 }
2366 memcpy(ad_entry(ad, ADEID_FINDERI),
2367 &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
2368 rc = ad_write(ad, name);
2369 } else {
2370 len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n,
2371 offset + ad_getentryoff(ad, ADEID_RFORK));
2372 if (len != n) {
2373 rc = -1;
2374 goto exit;
2375 }
2376
2377 if (config->rsrc == FRUIT_RSRC_ADFILE) {
2378 rc = ad_read(ad, name);
2379 if (rc == -1) {
2380 rc = -1;
2381 goto exit;
2382 }
2383 rc = 0;
2384
2385 new_rfork_size = len + offset
2386 + ad_getentryoff(ad, ADEID_RFORK);
2387 if (new_rfork_size > ad_getentrylen(ad, ADEID_RFORK)) {
2388 ad_setentrylen(ad, ADEID_RFORK,
2389 new_rfork_size);
2390 rc = ad_write(ad, name);
2391 }
2392 }
2393 }
2394
2395 exit:
2396 fsp->base_fsp->fsp_name->base_name = tmp_base_name;
2397 TALLOC_FREE(name);
2398 TALLOC_FREE(ai);
2399 if (rc != 0) {
2400 return -1;
2401 }
2402 return n;
2403 }
2404
2405 /**
2406 * Helper to stat/lstat the base file of an smb_fname.
2407 */
2408 static int fruit_stat_base(vfs_handle_struct *handle,
2409 struct smb_filename *smb_fname,
2410 bool follow_links)
2411 {
2412 char *tmp_stream_name;
2413 int rc;
2414
2415 tmp_stream_name = smb_fname->stream_name;
2416 smb_fname->stream_name = NULL;
2417 if (follow_links) {
2418 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
2419 } else {
2420 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
2421 }
2422 smb_fname->stream_name = tmp_stream_name;
2423 return rc;
2424 }
2425
2426 static int fruit_stat_meta(vfs_handle_struct *handle,
2427 struct smb_filename *smb_fname,
2428 bool follow_links)
2429 {
2430 /* Populate the stat struct with info from the base file. */
2431 if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
2432 return -1;
2433 }
2434 smb_fname->st.st_ex_size = AFP_INFO_SIZE;
2435 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
2436 smb_fname->stream_name);
2437 return 0;
2438 }
2439
2440 static int fruit_stat_rsrc(vfs_handle_struct *handle,
2441 struct smb_filename *smb_fname,
2442 bool follow_links)
2443
2444 {
2445 struct adouble *ad = NULL;
2446
2447 DEBUG(10, ("fruit_stat_rsrc called for %s\n",
2448 smb_fname_str_dbg(smb_fname)));
2449
2450 ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_RSRC);
2451 if (ad == NULL) {
2452 errno = ENOENT;
2453 return -1;
2454 }
2455
2456 /* Populate the stat struct with info from the base file. */
2457 if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
2458 TALLOC_FREE(ad);
2459 return -1;
2460 }
2461
2462 smb_fname->st.st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
2463 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
2464 smb_fname->stream_name);
2465 TALLOC_FREE(ad);
2466 return 0;
2467 }
2468
2469 static int fruit_stat(vfs_handle_struct *handle,
2470 struct smb_filename *smb_fname)
2471 {
2472 int rc = -1;
2473
2474 DEBUG(10, ("fruit_stat called for %s\n",
2475 smb_fname_str_dbg(smb_fname)));
2476
2477 if (!is_ntfs_stream_smb_fname(smb_fname)
2478 || is_ntfs_default_stream_smb_fname(smb_fname)) {
2479 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
2480 if (rc == 0) {
2481 update_btime(handle, smb_fname);
2482 }
2483 return rc;
2484 }
2485
2486 /*
2487 * Note if lp_posix_paths() is true, we can never
2488 * get here as is_ntfs_stream_smb_fname() is
2489 * always false. So we never need worry about
2490 * not following links here.
2491 */
2492
2493 if (is_afpinfo_stream(smb_fname)) {
2494 rc = fruit_stat_meta(handle, smb_fname, true);
2495 } else if (is_afpresource_stream(smb_fname)) {
2496 rc = fruit_stat_rsrc(handle, smb_fname, true);
2497 } else {
2498 return SMB_VFS_NEXT_STAT(handle, smb_fname);
2499 }
2500
2501 if (rc == 0) {
2502 update_btime(handle, smb_fname);
2503 smb_fname->st.st_ex_mode &= ~S_IFMT;
2504 smb_fname->st.st_ex_mode |= S_IFREG;
2505 smb_fname->st.st_ex_blocks =
2506 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
2507 }
2508 return rc;
2509 }
2510
2511 static int fruit_lstat(vfs_handle_struct *handle,
2512 struct smb_filename *smb_fname)
2513 {
2514 int rc = -1;
2515
2516 DEBUG(10, ("fruit_lstat called for %s\n",
2517 smb_fname_str_dbg(smb_fname)));
2518
2519 if (!is_ntfs_stream_smb_fname(smb_fname)
2520 || is_ntfs_default_stream_smb_fname(smb_fname)) {
2521 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
2522 if (rc == 0) {
2523 update_btime(handle, smb_fname);
2524 }
2525 return rc;
2526 }
2527
2528 if (is_afpinfo_stream(smb_fname)) {
2529 rc = fruit_stat_meta(handle, smb_fname, false);
2530 } else if (is_afpresource_stream(smb_fname)) {
2531 rc = fruit_stat_rsrc(handle, smb_fname, false);
2532 } else {
2533 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
2534 }
2535
2536 if (rc == 0) {
2537 update_btime(handle, smb_fname);
2538 smb_fname->st.st_ex_mode &= ~S_IFMT;
2539 smb_fname->st.st_ex_mode |= S_IFREG;
2540 smb_fname->st.st_ex_blocks =
2541 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
2542 }
2543 return rc;
2544 }
2545
2546 static int fruit_fstat_meta(vfs_handle_struct *handle,
2547 files_struct *fsp,
2548 SMB_STRUCT_STAT *sbuf)
2549 {
2550 DEBUG(10, ("fruit_fstat_meta called for %s\n",
2551 smb_fname_str_dbg(fsp->base_fsp->fsp_name)));
2552
2553 /* Populate the stat struct with info from the base file. */
2554 if (fruit_stat_base(handle, fsp->base_fsp->fsp_name, false) == -1) {
2555 return -1;
2556 }
2557 *sbuf = fsp->base_fsp->fsp_name->st;
2558 sbuf->st_ex_size = AFP_INFO_SIZE;
2559 sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
2560
2561 return 0;
2562 }
2563
2564 static int fruit_fstat_rsrc(vfs_handle_struct *handle, files_struct *fsp,
2565 SMB_STRUCT_STAT *sbuf)
2566 {
2567 struct fruit_config_data *config;
2568 struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
2569 handle, fsp);
2570
2571 DEBUG(10, ("fruit_fstat_rsrc called for %s\n",
2572 smb_fname_str_dbg(fsp->base_fsp->fsp_name)));
2573
2574 SMB_VFS_HANDLE_GET_DATA(handle, config,
2575 struct fruit_config_data, return -1);
2576
2577 if (config->rsrc == FRUIT_RSRC_STREAM) {
2578 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
2579 }
2580
2581 /* Populate the stat struct with info from the base file. */
2582 if (fruit_stat_base(handle, fsp->base_fsp->fsp_name, false) == -1) {
2583 return -1;
2584 }
2585 *sbuf = fsp->base_fsp->fsp_name->st;
2586 sbuf->st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
2587 sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
2588
2589 DEBUG(10, ("fruit_fstat_rsrc %s, size: %zd\n",
2590 smb_fname_str_dbg(fsp->fsp_name),
2591 (ssize_t)sbuf->st_ex_size));
2592
2593 return 0;
2594 }
2595
2596 static int fruit_fstat(vfs_handle_struct *handle, files_struct *fsp,
2597 SMB_STRUCT_STAT *sbuf)
2598 {
2599 int rc;
2600 char *name = NULL;
2601 char *tmp_base_name = NULL;
2602 NTSTATUS status;
2603 struct adouble *ad = (struct adouble *)
2604 VFS_FETCH_FSP_EXTENSION(handle, fsp);
2605
2606 DEBUG(10, ("fruit_fstat called for %s\n",
2607 smb_fname_str_dbg(fsp->fsp_name)));
2608
2609 if (fsp->base_fsp) {
2610 tmp_base_name = fsp->fsp_name->base_name;
2611 /* fsp_name is not converted with vfs_catia */
2612 status = SMB_VFS_TRANSLATE_NAME(
2613 handle->conn,
2614 fsp->base_fsp->fsp_name->base_name,
2615 vfs_translate_to_unix,
2616 talloc_tos(), &name);
2617
2618 if (!NT_STATUS_IS_OK(status)) {
2619 errno = map_errno_from_nt_status(status);
2620 rc = -1;
2621 goto exit;
2622 }
2623 fsp->base_fsp->fsp_name->base_name = name;
2624 }
2625
2626 if (ad == NULL || fsp->base_fsp == NULL) {
2627 rc = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
2628 goto exit;
2629 }
2630
2631 if (!fruit_fsp_recheck(ad, fsp)) {
2632 rc = -1;
2633 goto exit;
2634 }
2635
2636 switch (ad->ad_type) {
2637 case ADOUBLE_META:
2638 rc = fruit_fstat_meta(handle, fsp, sbuf);
2639 break;
2640 case ADOUBLE_RSRC:
2641 rc = fruit_fstat_rsrc(handle, fsp, sbuf);
2642 break;
2643 default:
2644 DEBUG(10, ("fruit_fstat %s: bad type\n",
2645 smb_fname_str_dbg(fsp->fsp_name)));
2646 rc = -1;
2647 goto exit;
2648 }
2649
2650 if (rc == 0) {
2651 sbuf->st_ex_mode &= ~S_IFMT;
2652 sbuf->st_ex_mode |= S_IFREG;
2653 sbuf->st_ex_blocks = sbuf->st_ex_size / STAT_ST_BLOCKSIZE + 1;
2654 }
2655
2656 exit:
2657 DEBUG(10, ("fruit_fstat %s, size: %zd\n",
2658 smb_fname_str_dbg(fsp->fsp_name),
2659 (ssize_t)sbuf->st_ex_size));
2660 if (tmp_base_name) {
2661 fsp->base_fsp->fsp_name->base_name = tmp_base_name;
2662 }
2663 TALLOC_FREE(name);
2664 return rc;
2665 }
2666
2667 static NTSTATUS fruit_streaminfo(vfs_handle_struct *handle,
2668 struct files_struct *fsp,
2669 const char *fname,
2670 TALLOC_CTX *mem_ctx,
2671 unsigned int *pnum_streams,
2672 struct stream_struct **pstreams)
2673 {
2674 struct fruit_config_data *config = NULL;
2675 struct smb_filename *smb_fname = NULL;
2676 struct adouble *ad = NULL;
2677
2678 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
2679 return NT_STATUS_UNSUCCESSFUL);
2680 DEBUG(10, ("fruit_streaminfo called for %s\n", fname));
2681
2682 smb_fname = synthetic_smb_fname(talloc_tos(), fname, NULL, NULL);
2683 if (smb_fname == NULL) {
2684 return NT_STATUS_NO_MEMORY;
2685 }
2686
2687 if (config->meta == FRUIT_META_NETATALK) {
2688 ad = ad_get(talloc_tos(), handle,
2689 smb_fname->base_name, ADOUBLE_META);
2690 if (ad && !empty_finderinfo(ad)) {
2691 if (!add_fruit_stream(
2692 mem_ctx, pnum_streams, pstreams,
2693 AFPINFO_STREAM_NAME, AFP_INFO_SIZE,
2694 smb_roundup(handle->conn,
2695 AFP_INFO_SIZE))) {
2696 TALLOC_FREE(ad);
2697 TALLOC_FREE(smb_fname);
2698 return NT_STATUS_NO_MEMORY;
2699 }
2700 }
2701 TALLOC_FREE(ad);
2702 }
2703
2704 if (config->rsrc != FRUIT_RSRC_STREAM) {
2705 ad = ad_get(talloc_tos(), handle, smb_fname->base_name,
2706 ADOUBLE_RSRC);
2707 if (ad) {
2708 if (!add_fruit_stream(
2709 mem_ctx, pnum_streams, pstreams,
2710 AFPRESOURCE_STREAM_NAME,
2711 ad_getentrylen(ad, ADEID_RFORK),
2712 smb_roundup(handle->conn,
2713 ad_getentrylen(
2714 ad, ADEID_RFORK)))) {
2715 TALLOC_FREE(ad);
2716 TALLOC_FREE(smb_fname);
2717 return NT_STATUS_NO_MEMORY;
2718 }
2719 }
2720 TALLOC_FREE(ad);
2721 }
2722
2723 TALLOC_FREE(smb_fname);
2724
2725 return SMB_VFS_NEXT_STREAMINFO(handle, fsp, fname, mem_ctx,
2726 pnum_streams, pstreams);
2727 }
2728
2729 static int fruit_ntimes(vfs_handle_struct *handle,
2730 const struct smb_filename *smb_fname,
2731 struct smb_file_time *ft)
2732 {
2733 int rc = 0;
2734 struct adouble *ad = NULL;
2735
2736 if (null_timespec(ft->create_time)) {
2737 goto exit;
2738 }
2739
2740 DEBUG(10,("set btime for %s to %s\n", smb_fname_str_dbg(smb_fname),
2741 time_to_asc(convert_timespec_to_time_t(ft->create_time))));
2742
2743 ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_META);
2744 if (ad == NULL) {
2745 goto exit;
2746 }
2747
2748 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX,
2749 convert_time_t_to_uint32_t(ft->create_time.tv_sec));
2750
2751 rc = ad_write(ad, smb_fname->base_name);
2752
2753 exit:
2754
2755 TALLOC_FREE(ad);
2756 if (rc != 0) {
2757 DEBUG(1, ("fruit_ntimes: %s\n", smb_fname_str_dbg(smb_fname)));
2758 return -1;
2759 }
2760 return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
2761 }
2762
2763 static int fruit_fallocate(struct vfs_handle_struct *handle,
2764 struct files_struct *fsp,
2765 enum vfs_fallocate_mode mode,
2766 off_t offset,
2767 off_t len)
2768 {
2769 struct adouble *ad =
2770 (struct adouble *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
2771
2772 if (ad == NULL) {
2773 return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
2774 }
2775
2776 if (!fruit_fsp_recheck(ad, fsp)) {
2777 return errno;
2778 }
2779
2780 /* Let the pwrite code path handle it. */
2781 return ENOSYS;
2782 }
2783
2784 static int fruit_ftruncate(struct vfs_handle_struct *handle,
2785 struct files_struct *fsp,
2786 off_t offset)
2787 {
2788 int rc = 0;
2789 struct adouble *ad =
2790 (struct adouble *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
2791 struct fruit_config_data *config;
2792
2793 DEBUG(10, ("streams_xattr_ftruncate called for file %s offset %.0f\n",
2794 fsp_str_dbg(fsp), (double)offset));
2795
2796 if (ad == NULL) {
2797 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
2798 }
2799
2800 if (!fruit_fsp_recheck(ad, fsp)) {
2801 return -1;
2802 }
2803
2804 SMB_VFS_HANDLE_GET_DATA(handle, config,
2805 struct fruit_config_data, return -1);
2806
2807 switch (ad->ad_type) {
2808 case ADOUBLE_META:
2809 /*
2810 * As this request hasn't been seen in the wild,
2811 * the only sensible use I can imagine is the client
2812 * truncating the stream to 0 bytes size.
2813 * We simply remove the metadata on such a request.
2814 */
2815 if (offset == 0) {
2816 rc = SMB_VFS_FREMOVEXATTR(fsp,
2817 AFPRESOURCE_EA_NETATALK);
2818 }
2819 break;
2820 case ADOUBLE_RSRC:
2821 if (config->rsrc == FRUIT_RSRC_XATTR && offset == 0) {
2822 rc = SMB_VFS_FREMOVEXATTR(fsp,
2823 AFPRESOURCE_EA_NETATALK);
2824 } else {
2825 rc = SMB_VFS_NEXT_FTRUNCATE(
2826 handle, fsp,
2827 offset + ad_getentryoff(ad, ADEID_RFORK));
2828 }
2829 break;
2830 default:
2831 return -1;
2832 }
2833
2834 return rc;
2835 }
2836
2837 static NTSTATUS fruit_create_file(vfs_handle_struct *handle,
2838 struct smb_request *req,
2839 uint16_t root_dir_fid,
2840 struct smb_filename *smb_fname,
2841 uint32_t access_mask,
2842 uint32_t share_access,
2843 uint32_t create_disposition,
2844 uint32_t create_options,
2845 uint32_t file_attributes,
2846 uint32_t oplock_request,
2847 struct smb2_lease *lease,
2848 uint64_t allocation_size,
2849 uint32_t private_flags,
2850 struct security_descriptor *sd,
2851 struct ea_list *ea_list,
2852 files_struct **result,
2853 int *pinfo)
2854 {
2855 NTSTATUS status;
2856 struct fruit_config_data *config = NULL;
2857
2858 status = SMB_VFS_NEXT_CREATE_FILE(
2859 handle, req, root_dir_fid, smb_fname,
2860 access_mask, share_access,
2861 create_disposition, create_options,
2862 file_attributes, oplock_request,
2863 lease,
2864 allocation_size, private_flags,
2865 sd, ea_list, result,
2866 pinfo);
2867
2868 if (!NT_STATUS_IS_OK(status)) {
2869 return status;
2870 }
2871
2872 if (is_ntfs_stream_smb_fname(smb_fname)
2873 || (*result == NULL)
2874 || ((*result)->is_directory)) {
2875 return status;
2876 }
2877
2878 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
2879 return NT_STATUS_UNSUCCESSFUL);
2880
2881 if (config->locking == FRUIT_LOCKING_NETATALK) {
2882 status = fruit_check_access(
2883 handle, *result,
2884 access_mask,
2885 map_share_mode_to_deny_mode(share_access, 0));
2886 if (!NT_STATUS_IS_OK(status)) {
2887 goto fail;
2888 }
2889 }
2890
2891 return status;
2892
2893 fail:
2894 DEBUG(1, ("fruit_create_file: %s\n", nt_errstr(status)));
2895
2896 if (*result) {
2897 close_file(req, *result, ERROR_CLOSE);
2898 *result = NULL;
2899 }
2900
2901 return status;
2902 }
2903
2904 static struct vfs_fn_pointers vfs_fruit_fns = {
2905 .connect_fn = fruit_connect,
2906
2907 /* File operations */
2908 .chmod_fn = fruit_chmod,
2909 .chown_fn = fruit_chown,
2910 .unlink_fn = fruit_unlink,
2911 .rename_fn = fruit_rename,
2912 .rmdir_fn = fruit_rmdir,
2913 .open_fn = fruit_open,
2914 .pread_fn = fruit_pread,
2915 .pwrite_fn = fruit_pwrite,
2916 .stat_fn = fruit_stat,
2917 .lstat_fn = fruit_lstat,
2918 .fstat_fn = fruit_fstat,
2919 .streaminfo_fn = fruit_streaminfo,
2920 .ntimes_fn = fruit_ntimes,
2921 .unlink_fn = fruit_unlink,
2922 .ftruncate_fn = fruit_ftruncate,
2923 .fallocate_fn = fruit_fallocate,
2924 .create_file_fn = fruit_create_file,
2925 };
2926
2927 NTSTATUS vfs_fruit_init(void);
2928 NTSTATUS vfs_fruit_init(void)
2929 {
2930 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fruit",
2931 &vfs_fruit_fns);
2932 if (!NT_STATUS_IS_OK(ret)) {
2933 return ret;
2934 }
2935
2936 vfs_fruit_debug_level = debug_add_class("fruit");
2937 if (vfs_fruit_debug_level == -1) {
2938 vfs_fruit_debug_level = DBGC_VFS;
2939 DEBUG(0, ("%s: Couldn't register custom debugging class!\n",
2940 "vfs_fruit_init"));
2941 } else {
2942 DEBUG(10, ("%s: Debug class number of '%s': %d\n",
2943 "vfs_fruit_init","fruit",vfs_fruit_debug_level));
2944 }
2945
2946 return ret;
2947 }
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