?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
vfs_fruit: remove redundant assignment
[Samba.git] / source3 / modules / vfs_fruit.c
blob242a6cbbc84c99a2a48cdce00e916c13209358d8
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 = 0;
759
760 SMB_VFS_HANDLE_GET_DATA(ad->ad_handle, config,
761 struct fruit_config_data, return -1);
762
763 /* Try rw first so we can use the fd in ad_convert() */
764 mode = O_RDWR;
765
766 if (ad->ad_fsp && ad->ad_fsp->fh && (ad->ad_fsp->fh->fd != -1)) {
767 fd = ad->ad_fsp->fh->fd;
768 } else {
769 if (config->rsrc == FRUIT_RSRC_XATTR) {
770 adpath = talloc_strdup(talloc_tos(), path);
771 } else {
772 rc = adouble_path(talloc_tos(), path, &adpath);
773 if (rc != 0) {
774 goto exit;
775 }
776 }
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 goto exit;
821 }
822 ad_setentrylen(ad, ADEID_RFORK, sbuf.st_ex_size);
823 } else {
824 /* FIXME: direct sys_pread(), don't have an fsp */
825 len = sys_pread(fd, ad->ad_data, AD_DATASZ_DOT_UND, 0);
826 if (len != AD_DATASZ_DOT_UND) {
827 DEBUG(2, ("%s: bad size: %zd\n",
828 strerror(errno), len));
829 rc = -1;
830 goto exit;
831 }
832
833 /* Now parse entries */
834 ok = ad_unpack(ad, ADEID_NUM_DOT_UND);
835 if (!ok) {
836 DEBUG(1, ("invalid AppleDouble ressource %s\n", path));
837 errno = EINVAL;
838 rc = -1;
839 goto exit;
840 }
841
842 if ((ad_getentryoff(ad, ADEID_FINDERI)
843 != ADEDOFF_FINDERI_DOT_UND)
844 || (ad_getentrylen(ad, ADEID_FINDERI)
845 < ADEDLEN_FINDERI)
846 || (ad_getentryoff(ad, ADEID_RFORK)
847 < ADEDOFF_RFORK_DOT_UND)) {
848 DEBUG(2, ("invalid AppleDouble ressource %s\n", path));
849 errno = EINVAL;
850 rc = -1;
851 goto exit;
852 }
853
854 if ((mode == O_RDWR)
855 && (ad_getentrylen(ad, ADEID_FINDERI) > ADEDLEN_FINDERI)) {
856 rc = ad_convert(ad, fd);
857 if (rc != 0) {
858 rc = -1;
859 goto exit;
860 }
861 /*
862 * Can't use ad_write() because we might not have a fsp
863 */
864 rc = ad_pack(ad);
865 if (rc != 0) {
866 goto exit;
867 }
868 /* FIXME: direct sys_pwrite(), don't have an fsp */
869 len = sys_pwrite(fd, ad->ad_data,
870 AD_DATASZ_DOT_UND, 0);
871 if (len != AD_DATASZ_DOT_UND) {
872 DEBUG(2, ("%s: bad size: %zd\n", adpath, len));
873 rc = -1;
874 goto exit;
875 }
876
877 meta_ad = ad_init(talloc_tos(), ad->ad_handle,
878 ADOUBLE_META, NULL);
879 if (meta_ad == NULL) {
880 rc = -1;
881 goto exit;
882 }
883
884 memcpy(ad_entry(meta_ad, ADEID_FINDERI),
885 ad_entry(ad, ADEID_FINDERI),
886 ADEDLEN_FINDERI);
887
888 rc = ad_write(meta_ad, path);
889 if (rc != 0) {
890 rc = -1;
891 goto exit;
892 }
893 }
894 }
895
896 DEBUG(10, ("opened AppleDouble: %s\n", path));
897
898 exit:
899 if (rc != 0) {
900 saved_errno = errno;
901 len = -1;
902 }
903 if (opened && fd != -1) {
904 close(fd);
905 }
906 TALLOC_FREE(adpath);
907 TALLOC_FREE(meta_ad);
908 if (rc != 0) {
909 errno = saved_errno;
910 }
911 return len;
912 }
913
914 /**
915 * Read and unpack an AppleDouble metadata xattr or resource
916 **/
917 static ssize_t ad_read(struct adouble *ad, const char *path)
918 {
919 switch (ad->ad_type) {
920 case ADOUBLE_META:
921 return ad_header_read_meta(ad, path);
922 case ADOUBLE_RSRC:
923 return ad_header_read_rsrc(ad, path);
924 default:
925 return -1;
926 }
927 }
928
929 /**
930 * Allocate a struct adouble without initialiing it
931 *
932 * The struct is either hang of the fsp extension context or if fsp is
933 * NULL from ctx.
934 *
935 * @param[in] ctx talloc context
936 * @param[in] handle vfs handle
937 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
938
939 * @param[in] fsp if not NULL (for stream IO), the adouble handle is
940 * added as an fsp extension
941 *
942 * @return adouble handle
943 **/
944 static struct adouble *ad_alloc(TALLOC_CTX *ctx, vfs_handle_struct *handle,
945 adouble_type_t type, files_struct *fsp)
946 {
947 int rc = 0;
948 size_t adsize = 0;
949 struct adouble *ad;
950 struct fruit_config_data *config;
951
952 SMB_VFS_HANDLE_GET_DATA(handle, config,
953 struct fruit_config_data, return NULL);
954
955 switch (type) {
956 case ADOUBLE_META:
957 adsize = AD_DATASZ_XATTR;
958 break;
959 case ADOUBLE_RSRC:
960 if (config->rsrc == FRUIT_RSRC_ADFILE) {
961 adsize = AD_DATASZ_DOT_UND;
962 }
963 break;
964 default:
965 return NULL;
966 }
967
968 if (!fsp) {
969 ad = talloc_zero(ctx, struct adouble);
970 if (ad == NULL) {
971 rc = -1;
972 goto exit;
973 }
974 if (adsize) {
975 ad->ad_data = talloc_zero_array(ad, char, adsize);
976 }
977 } else {
978 ad = (struct adouble *)VFS_ADD_FSP_EXTENSION(handle, fsp,
979 struct adouble,
980 NULL);
981 if (ad == NULL) {
982 rc = -1;
983 goto exit;
984 }
985 if (adsize) {
986 ad->ad_data = talloc_zero_array(
987 VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
988 char, adsize);
989 }
990 ad->ad_fsp = fsp;
991 }
992
993 if (adsize && ad->ad_data == NULL) {
994 rc = -1;
995 goto exit;
996 }
997 ad->ad_handle = handle;
998 ad->ad_type = type;
999 ad->ad_magic = AD_MAGIC;
1000 ad->ad_version = AD_VERSION;
1001
1002 exit:
1003 if (rc != 0) {
1004 TALLOC_FREE(ad);
1005 }
1006 return ad;
1007 }
1008
1009 /**
1010 * Allocate and initialize a new struct adouble
1011 *
1012 * @param[in] ctx talloc context
1013 * @param[in] handle vfs handle
1014 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
1015 * @param[in] fsp file handle, may be NULL for a type of e_ad_meta
1016 *
1017 * @return adouble handle, initialized
1018 **/
1019 static struct adouble *ad_init(TALLOC_CTX *ctx, vfs_handle_struct *handle,
1020 adouble_type_t type, files_struct *fsp)
1021 {
1022 int rc = 0;
1023 const struct ad_entry_order *eid;
1024 struct adouble *ad = NULL;
1025 struct fruit_config_data *config;
1026 time_t t = time(NULL);
1027
1028 SMB_VFS_HANDLE_GET_DATA(handle, config,
1029 struct fruit_config_data, return NULL);
1030
1031 switch (type) {
1032 case ADOUBLE_META:
1033 eid = entry_order_meta_xattr;
1034 break;
1035 case ADOUBLE_RSRC:
1036 if (config->rsrc == FRUIT_RSRC_ADFILE) {
1037 eid = entry_order_dot_und;
1038 } else {
1039 eid = entry_order_rsrc_xattr;
1040 }
1041 break;
1042 default:
1043 return NULL;
1044 }
1045
1046 ad = ad_alloc(ctx, handle, type, fsp);
1047 if (ad == NULL) {
1048 return NULL;
1049 }
1050
1051 while (eid->id) {
1052 ad->ad_eid[eid->id].ade_off = eid->offset;
1053 ad->ad_eid[eid->id].ade_len = eid->len;
1054 eid++;
1055 }
1056
1057 /* put something sane in the date fields */
1058 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, t);
1059 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, t);
1060 ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, t);
1061 ad_setdate(ad, AD_DATE_BACKUP, htonl(AD_DATE_START));
1062
1063 if (rc != 0) {
1064 TALLOC_FREE(ad);
1065 }
1066 return ad;
1067 }
1068
1069 /**
1070 * Return AppleDouble data for a file
1071 *
1072 * @param[in] ctx talloc context
1073 * @param[in] handle vfs handle
1074 * @param[in] path pathname to file or directory
1075 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
1076 *
1077 * @return talloced struct adouble or NULL on error
1078 **/
1079 static struct adouble *ad_get(TALLOC_CTX *ctx, vfs_handle_struct *handle,
1080 const char *path, adouble_type_t type)
1081 {
1082 int rc = 0;
1083 ssize_t len;
1084 struct adouble *ad = NULL;
1085
1086 DEBUG(10, ("ad_get(%s) called for %s\n",
1087 type == ADOUBLE_META ? "meta" : "rsrc", path));
1088
1089 ad = ad_alloc(ctx, handle, type, NULL);
1090 if (ad == NULL) {
1091 rc = -1;
1092 goto exit;
1093 }
1094
1095 len = ad_read(ad, path);
1096 if (len == -1) {
1097 DEBUG(10, ("error reading AppleDouble for %s\n", path));
1098 rc = -1;
1099 goto exit;
1100 }
1101
1102 exit:
1103 DEBUG(10, ("ad_get(%s) for %s returning %d\n",
1104 type == ADOUBLE_META ? "meta" : "rsrc", path, rc));
1105
1106 if (rc != 0) {
1107 TALLOC_FREE(ad);
1108 }
1109 return ad;
1110 }
1111
1112 /**
1113 * Set AppleDouble metadata on a file or directory
1114 *
1115 * @param[in] ad adouble handle
1116
1117 * @param[in] path pathname to file or directory, may be NULL for a
1118 * resource fork
1119 *
1120 * @return status code, 0 means success
1121 **/
1122 static int ad_write(struct adouble *ad, const char *path)
1123 {
1124 int rc = 0;
1125 ssize_t len;
1126
1127 rc = ad_pack(ad);
1128 if (rc != 0) {
1129 goto exit;
1130 }
1131
1132 switch (ad->ad_type) {
1133 case ADOUBLE_META:
1134 rc = SMB_VFS_SETXATTR(ad->ad_handle->conn, path,
1135 AFPINFO_EA_NETATALK, ad->ad_data,
1136 AD_DATASZ_XATTR, 0);
1137 break;
1138 case ADOUBLE_RSRC:
1139 if ((ad->ad_fsp == NULL)
1140 || (ad->ad_fsp->fh == NULL)
1141 || (ad->ad_fsp->fh->fd == -1)) {
1142 rc = -1;
1143 goto exit;
1144 }
1145 /* FIXME: direct sys_pwrite(), don't have an fsp */
1146 len = sys_pwrite(ad->ad_fsp->fh->fd, ad->ad_data,
1147 talloc_get_size(ad->ad_data), 0);
1148 if (len != talloc_get_size(ad->ad_data)) {
1149 DEBUG(1, ("short write on %s: %zd",
1150 fsp_str_dbg(ad->ad_fsp), len));
1151 rc = -1;
1152 goto exit;
1153 }
1154 break;
1155 default:
1156 return -1;
1157 }
1158 exit:
1159 return rc;
1160 }
1161
1162 /*****************************************************************************
1163 * Helper functions
1164 *****************************************************************************/
1165
1166 static bool is_afpinfo_stream(const struct smb_filename *smb_fname)
1167 {
1168 if (strncasecmp_m(smb_fname->stream_name,
1169 AFPINFO_STREAM_NAME,
1170 strlen(AFPINFO_STREAM_NAME)) == 0) {
1171 return true;
1172 }
1173 return false;
1174 }
1175
1176 static bool is_afpresource_stream(const struct smb_filename *smb_fname)
1177 {
1178 if (strncasecmp_m(smb_fname->stream_name,
1179 AFPRESOURCE_STREAM_NAME,
1180 strlen(AFPRESOURCE_STREAM_NAME)) == 0) {
1181 return true;
1182 }
1183 return false;
1184 }
1185
1186 /**
1187 * Test whether stream is an Apple stream, not used atm
1188 **/
1189 #if 0
1190 static bool is_apple_stream(const struct smb_filename *smb_fname)
1191 {
1192 if (is_afpinfo_stream(smb_fname)) {
1193 return true;
1194 }
1195 if (is_afpresource_stream(smb_fname)) {
1196 return true;
1197 }
1198 return false;
1199 }
1200 #endif
1201
1202 /**
1203 * Initialize config struct from our smb.conf config parameters
1204 **/
1205 static int init_fruit_config(vfs_handle_struct *handle)
1206 {
1207 struct fruit_config_data *config;
1208 int enumval;
1209
1210 config = talloc_zero(handle->conn, struct fruit_config_data);
1211 if (!config) {
1212 DEBUG(1, ("talloc_zero() failed\n"));
1213 errno = ENOMEM;
1214 return -1;
1215 }
1216
1217 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1218 "ressource", fruit_rsrc, FRUIT_RSRC_ADFILE);
1219 if (enumval == -1) {
1220 DEBUG(1, ("value for %s: ressource type unknown\n",
1221 FRUIT_PARAM_TYPE_NAME));
1222 return -1;
1223 }
1224 config->rsrc = (enum fruit_rsrc)enumval;
1225
1226 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1227 "metadata", fruit_meta, FRUIT_META_NETATALK);
1228 if (enumval == -1) {
1229 DEBUG(1, ("value for %s: metadata type unknown\n",
1230 FRUIT_PARAM_TYPE_NAME));
1231 return -1;
1232 }
1233 config->meta = (enum fruit_meta)enumval;
1234
1235 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1236 "locking", fruit_locking, FRUIT_LOCKING_NONE);
1237 if (enumval == -1) {
1238 DEBUG(1, ("value for %s: locking type unknown\n",
1239 FRUIT_PARAM_TYPE_NAME));
1240 return -1;
1241 }
1242 config->locking = (enum fruit_locking)enumval;
1243
1244 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1245 "encoding", fruit_encoding, FRUIT_ENC_PRIVATE);
1246 if (enumval == -1) {
1247 DEBUG(1, ("value for %s: encoding type unknown\n",
1248 FRUIT_PARAM_TYPE_NAME));
1249 return -1;
1250 }
1251 config->encoding = (enum fruit_encoding)enumval;
1252
1253 SMB_VFS_HANDLE_SET_DATA(handle, config,
1254 NULL, struct fruit_config_data,
1255 return -1);
1256
1257 return 0;
1258 }
1259
1260 /**
1261 * Prepend "._" to a basename
1262 **/
1263 static int adouble_path(TALLOC_CTX *ctx, const char *path_in, char **path_out)
1264 {
1265 char *parent;
1266 const char *basename;
1267
1268 if (!parent_dirname(ctx, path_in, &parent, &basename)) {
1269 return -1;
1270 }
1271
1272 *path_out = talloc_asprintf(ctx, "%s/._%s", parent, basename);
1273 if (*path_out == NULL) {
1274 return -1;
1275 }
1276
1277 return 0;
1278 }
1279
1280 /**
1281 * Allocate and initialize an AfpInfo struct
1282 **/
1283 static AfpInfo *afpinfo_new(TALLOC_CTX *ctx)
1284 {
1285 AfpInfo *ai = talloc_zero(ctx, AfpInfo);
1286 if (ai == NULL) {
1287 return NULL;
1288 }
1289 ai->afpi_Signature = AFP_Signature;
1290 ai->afpi_Version = AFP_Version;
1291 ai->afpi_BackupTime = AD_DATE_START;
1292 return ai;
1293 }
1294
1295 /**
1296 * Pack an AfpInfo struct into a buffer
1297 *
1298 * Buffer size must be at least AFP_INFO_SIZE
1299 * Returns size of packed buffer
1300 **/
1301 static ssize_t afpinfo_pack(const AfpInfo *ai, char *buf)
1302 {
1303 memset(buf, 0, AFP_INFO_SIZE);
1304
1305 RSIVAL(buf, 0, ai->afpi_Signature);
1306 RSIVAL(buf, 4, ai->afpi_Version);
1307 RSIVAL(buf, 12, ai->afpi_BackupTime);
1308 memcpy(buf + 16, ai->afpi_FinderInfo, sizeof(ai->afpi_FinderInfo));
1309
1310 return AFP_INFO_SIZE;
1311 }
1312
1313 /**
1314 * Unpack a buffer into a AfpInfo structure
1315 *
1316 * Buffer size must be at least AFP_INFO_SIZE
1317 * Returns allocated AfpInfo struct
1318 **/
1319 static AfpInfo *afpinfo_unpack(TALLOC_CTX *ctx, const void *data)
1320 {
1321 AfpInfo *ai = talloc_zero(ctx, AfpInfo);
1322 if (ai == NULL) {
1323 return NULL;
1324 }
1325
1326 ai->afpi_Signature = RIVAL(data, 0);
1327 ai->afpi_Version = RIVAL(data, 4);
1328 ai->afpi_BackupTime = RIVAL(data, 12);
1329 memcpy(ai->afpi_FinderInfo, (const char *)data + 16,
1330 sizeof(ai->afpi_FinderInfo));
1331
1332 if (ai->afpi_Signature != AFP_Signature
1333 || ai->afpi_Version != AFP_Version) {
1334 DEBUG(1, ("Bad AfpInfo signature or version\n"));
1335 TALLOC_FREE(ai);
1336 }
1337
1338 return ai;
1339 }
1340
1341 /**
1342 * Fake an inode number from the md5 hash of the (xattr) name
1343 **/
1344 static SMB_INO_T fruit_inode(const SMB_STRUCT_STAT *sbuf, const char *sname)
1345 {
1346 MD5_CTX ctx;
1347 unsigned char hash[16];
1348 SMB_INO_T result;
1349 char *upper_sname;
1350
1351 upper_sname = talloc_strdup_upper(talloc_tos(), sname);
1352 SMB_ASSERT(upper_sname != NULL);
1353
1354 MD5Init(&ctx);
1355 MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_dev),
1356 sizeof(sbuf->st_ex_dev));
1357 MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_ino),
1358 sizeof(sbuf->st_ex_ino));
1359 MD5Update(&ctx, (unsigned char *)upper_sname,
1360 talloc_get_size(upper_sname)-1);
1361 MD5Final(hash, &ctx);
1362
1363 TALLOC_FREE(upper_sname);
1364
1365 /* Hopefully all the variation is in the lower 4 (or 8) bytes! */
1366 memcpy(&result, hash, sizeof(result));
1367
1368 DEBUG(10, ("fruit_inode \"%s\": ino=0x%llu\n",
1369 sname, (unsigned long long)result));
1370
1371 return result;
1372 }
1373
1374 /**
1375 * Ensure ad_fsp is still valid
1376 **/
1377 static bool fruit_fsp_recheck(struct adouble *ad, files_struct *fsp)
1378 {
1379 if (ad->ad_fsp == fsp) {
1380 return true;
1381 }
1382 ad->ad_fsp = fsp;
1383
1384 return true;
1385 }
1386
1387 static bool add_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
1388 struct stream_struct **streams,
1389 const char *name, off_t size,
1390 off_t alloc_size)
1391 {
1392 struct stream_struct *tmp;
1393
1394 tmp = talloc_realloc(mem_ctx, *streams, struct stream_struct,
1395 (*num_streams)+1);
1396 if (tmp == NULL) {
1397 return false;
1398 }
1399
1400 tmp[*num_streams].name = talloc_asprintf(tmp, "%s:$DATA", name);
1401 if (tmp[*num_streams].name == NULL) {
1402 return false;
1403 }
1404
1405 tmp[*num_streams].size = size;
1406 tmp[*num_streams].alloc_size = alloc_size;
1407
1408 *streams = tmp;
1409 *num_streams += 1;
1410 return true;
1411 }
1412
1413 static bool empty_finderinfo(const struct adouble *ad)
1414 {
1415
1416 char emptybuf[ADEDLEN_FINDERI] = {0};
1417 if (memcmp(emptybuf,
1418 ad_entry(ad, ADEID_FINDERI),
1419 ADEDLEN_FINDERI) == 0) {
1420 return true;
1421 }
1422 return false;
1423 }
1424
1425 /**
1426 * Update btime with btime from Netatalk
1427 **/
1428 static void update_btime(vfs_handle_struct *handle,
1429 struct smb_filename *smb_fname)
1430 {
1431 uint32_t t;
1432 struct timespec creation_time = {0};
1433 struct adouble *ad;
1434
1435 ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_META);
1436 if (ad == NULL) {
1437 return;
1438 }
1439 if (ad_getdate(ad, AD_DATE_UNIX | AD_DATE_CREATE, &t) != 0) {
1440 TALLOC_FREE(ad);
1441 return;
1442 }
1443 TALLOC_FREE(ad);
1444
1445 creation_time.tv_sec = convert_uint32_t_to_time_t(t);
1446 update_stat_ex_create_time(&smb_fname->st, creation_time);
1447
1448 return;
1449 }
1450
1451 /**
1452 * Map an access mask to a Netatalk single byte byte range lock
1453 **/
1454 static off_t access_to_netatalk_brl(enum apple_fork fork,
1455 uint32_t access_mask)
1456 {
1457 off_t offset;
1458
1459 switch (access_mask) {
1460 case FILE_READ_DATA:
1461 offset = AD_FILELOCK_OPEN_RD;
1462 break;
1463
1464 case FILE_WRITE_DATA:
1465 case FILE_APPEND_DATA:
1466 offset = AD_FILELOCK_OPEN_WR;
1467 break;
1468
1469 default:
1470 offset = AD_FILELOCK_OPEN_NONE;
1471 break;
1472 }
1473
1474 if (fork == APPLE_FORK_RSRC) {
1475 if (offset == AD_FILELOCK_OPEN_NONE) {
1476 offset = AD_FILELOCK_RSRC_OPEN_NONE;
1477 } else {
1478 offset += 2;
1479 }
1480 }
1481
1482 return offset;
1483 }
1484
1485 /**
1486 * Map a deny mode to a Netatalk brl
1487 **/
1488 static off_t denymode_to_netatalk_brl(enum apple_fork fork,
1489 uint32_t deny_mode)
1490 {
1491 off_t offset;
1492
1493 switch (deny_mode) {
1494 case DENY_READ:
1495 offset = AD_FILELOCK_DENY_RD;
1496 break;
1497
1498 case DENY_WRITE:
1499 offset = AD_FILELOCK_DENY_WR;
1500 break;
1501
1502 default:
1503 smb_panic("denymode_to_netatalk_brl: bad deny mode\n");
1504 }
1505
1506 if (fork == APPLE_FORK_RSRC) {
1507 offset += 2;
1508 }
1509
1510 return offset;
1511 }
1512
1513 /**
1514 * Call fcntl() with an exclusive F_GETLK request in order to
1515 * determine if there's an exisiting shared lock
1516 *
1517 * @return true if the requested lock was found or any error occured
1518 * false if the lock was not found
1519 **/
1520 static bool test_netatalk_lock(files_struct *fsp, off_t in_offset)
1521 {
1522 bool result;
1523 off_t offset = in_offset;
1524 off_t len = 1;
1525 int type = F_WRLCK;
1526 pid_t pid;
1527
1528 result = SMB_VFS_GETLOCK(fsp, &offset, &len, &type, &pid);
1529 if (result == false) {
1530 return true;
1531 }
1532
1533 if (type != F_UNLCK) {
1534 return true;
1535 }
1536
1537 return false;
1538 }
1539
1540 static NTSTATUS fruit_check_access(vfs_handle_struct *handle,
1541 files_struct *fsp,
1542 uint32_t access_mask,
1543 uint32_t deny_mode)
1544 {
1545 NTSTATUS status = NT_STATUS_OK;
1546 struct byte_range_lock *br_lck = NULL;
1547 bool open_for_reading, open_for_writing, deny_read, deny_write;
1548 off_t off;
1549
1550 /* FIXME: hardcoded data fork, add resource fork */
1551 enum apple_fork fork = APPLE_FORK_DATA;
1552
1553 DEBUG(10, ("fruit_check_access: %s, am: %s/%s, dm: %s/%s\n",
1554 fsp_str_dbg(fsp),
1555 access_mask & FILE_READ_DATA ? "READ" :"-",
1556 access_mask & FILE_WRITE_DATA ? "WRITE" : "-",
1557 deny_mode & DENY_READ ? "DENY_READ" : "-",
1558 deny_mode & DENY_WRITE ? "DENY_WRITE" : "-"));
1559
1560 /*
1561 * Check read access and deny read mode
1562 */
1563 if ((access_mask & FILE_READ_DATA) || (deny_mode & DENY_READ)) {
1564 /* Check access */
1565 open_for_reading = test_netatalk_lock(
1566 fsp, access_to_netatalk_brl(fork, FILE_READ_DATA));
1567
1568 deny_read = test_netatalk_lock(
1569 fsp, denymode_to_netatalk_brl(fork, DENY_READ));
1570
1571 DEBUG(10, ("read: %s, deny_write: %s\n",
1572 open_for_reading == true ? "yes" : "no",
1573 deny_read == true ? "yes" : "no"));
1574
1575 if (((access_mask & FILE_READ_DATA) && deny_read)
1576 || ((deny_mode & DENY_READ) && open_for_reading)) {
1577 return NT_STATUS_SHARING_VIOLATION;
1578 }
1579
1580 /* Set locks */
1581 if (access_mask & FILE_READ_DATA) {
1582 off = access_to_netatalk_brl(fork, FILE_READ_DATA);
1583 br_lck = do_lock(
1584 handle->conn->sconn->msg_ctx, fsp,
1585 fsp->op->global->open_persistent_id, 1, off,
1586 READ_LOCK, POSIX_LOCK, false,
1587 &status, NULL);
1588
1589 if (!NT_STATUS_IS_OK(status)) {
1590 return status;
1591 }
1592 TALLOC_FREE(br_lck);
1593 }
1594
1595 if (deny_mode & DENY_READ) {
1596 off = denymode_to_netatalk_brl(fork, DENY_READ);
1597 br_lck = do_lock(
1598 handle->conn->sconn->msg_ctx, fsp,
1599 fsp->op->global->open_persistent_id, 1, off,
1600 READ_LOCK, POSIX_LOCK, false,
1601 &status, NULL);
1602
1603 if (!NT_STATUS_IS_OK(status)) {
1604 return status;
1605 }
1606 TALLOC_FREE(br_lck);
1607 }
1608 }
1609
1610 /*
1611 * Check write access and deny write mode
1612 */
1613 if ((access_mask & FILE_WRITE_DATA) || (deny_mode & DENY_WRITE)) {
1614 /* Check access */
1615 open_for_writing = test_netatalk_lock(
1616 fsp, access_to_netatalk_brl(fork, FILE_WRITE_DATA));
1617
1618 deny_write = test_netatalk_lock(
1619 fsp, denymode_to_netatalk_brl(fork, DENY_WRITE));
1620
1621 DEBUG(10, ("write: %s, deny_write: %s\n",
1622 open_for_writing == true ? "yes" : "no",
1623 deny_write == true ? "yes" : "no"));
1624
1625 if (((access_mask & FILE_WRITE_DATA) && deny_write)
1626 || ((deny_mode & DENY_WRITE) && open_for_writing)) {
1627 return NT_STATUS_SHARING_VIOLATION;
1628 }
1629
1630 /* Set locks */
1631 if (access_mask & FILE_WRITE_DATA) {
1632 off = access_to_netatalk_brl(fork, FILE_WRITE_DATA);
1633 br_lck = do_lock(
1634 handle->conn->sconn->msg_ctx, fsp,
1635 fsp->op->global->open_persistent_id, 1, off,
1636 READ_LOCK, POSIX_LOCK, false,
1637 &status, NULL);
1638
1639 if (!NT_STATUS_IS_OK(status)) {
1640 return status;
1641 }
1642 TALLOC_FREE(br_lck);
1643
1644 }
1645 if (deny_mode & DENY_WRITE) {
1646 off = denymode_to_netatalk_brl(fork, DENY_WRITE);
1647 br_lck = do_lock(
1648 handle->conn->sconn->msg_ctx, fsp,
1649 fsp->op->global->open_persistent_id, 1, off,
1650 READ_LOCK, POSIX_LOCK, false,
1651 &status, NULL);
1652
1653 if (!NT_STATUS_IS_OK(status)) {
1654 return status;
1655 }
1656 TALLOC_FREE(br_lck);
1657 }
1658 }
1659
1660 TALLOC_FREE(br_lck);
1661
1662 return status;
1663 }
1664
1665 /****************************************************************************
1666 * VFS ops
1667 ****************************************************************************/
1668
1669 static int fruit_connect(vfs_handle_struct *handle,
1670 const char *service,
1671 const char *user)
1672 {
1673 int rc;
1674 char *list = NULL, *newlist = NULL;
1675 struct fruit_config_data *config;
1676
1677 DEBUG(10, ("fruit_connect\n"));
1678
1679 rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
1680 if (rc < 0) {
1681 return rc;
1682 }
1683
1684 list = lp_veto_files(talloc_tos(), SNUM(handle->conn));
1685
1686 if (list) {
1687 if (strstr(list, "/" ADOUBLE_NAME_PREFIX "*/") == NULL) {
1688 newlist = talloc_asprintf(
1689 list,
1690 "%s/" ADOUBLE_NAME_PREFIX "*/",
1691 list);
1692 lp_do_parameter(SNUM(handle->conn),
1693 "veto files",
1694 newlist);
1695 }
1696 } else {
1697 lp_do_parameter(SNUM(handle->conn),
1698 "veto files",
1699 "/" ADOUBLE_NAME_PREFIX "*/");
1700 }
1701
1702 TALLOC_FREE(list);
1703
1704 rc = init_fruit_config(handle);
1705 if (rc != 0) {
1706 return rc;
1707 }
1708
1709 SMB_VFS_HANDLE_GET_DATA(handle, config,
1710 struct fruit_config_data, return -1);
1711
1712 if (config->encoding == FRUIT_ENC_NATIVE) {
1713 lp_do_parameter(
1714 SNUM(handle->conn),
1715 "catia:mappings",
1716 "0x22:0xf020,0x2a:0xf021,0x3a:0xf022,0x3c:0xf023,"
1717 "0x3e:0xf024,0x3f:0xf025,0x5c:0xf026,0x7c:0xf027,"
1718 "0x0d:0xf00d");
1719 }
1720
1721 return rc;
1722 }
1723
1724 static int fruit_open_meta(vfs_handle_struct *handle,
1725 struct smb_filename *smb_fname,
1726 files_struct *fsp, int flags, mode_t mode)
1727 {
1728 int rc = 0;
1729 struct fruit_config_data *config = NULL;
1730 struct smb_filename *smb_fname_base = NULL;
1731 int baseflags;
1732 int hostfd = -1;
1733 struct adouble *ad = NULL;
1734
1735 DEBUG(10, ("fruit_open_meta for %s\n", smb_fname_str_dbg(smb_fname)));
1736
1737 SMB_VFS_HANDLE_GET_DATA(handle, config,
1738 struct fruit_config_data, return -1);
1739
1740 if (config->meta == FRUIT_META_STREAM) {
1741 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1742 }
1743
1744 /* Create an smb_filename with stream_name == NULL. */
1745 smb_fname_base = synthetic_smb_fname(talloc_tos(),
1746 smb_fname->base_name, NULL, NULL);
1747
1748 if (smb_fname_base == NULL) {
1749 errno = ENOMEM;
1750 rc = -1;
1751 goto exit;
1752 }
1753
1754 /*
1755 * We use baseflags to turn off nasty side-effects when opening the
1756 * underlying file.
1757 */
1758 baseflags = flags;
1759 baseflags &= ~O_TRUNC;
1760 baseflags &= ~O_EXCL;
1761 baseflags &= ~O_CREAT;
1762
1763 hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
1764 baseflags, mode);
1765
1766 /*
1767 * It is legit to open a stream on a directory, but the base
1768 * fd has to be read-only.
1769 */
1770 if ((hostfd == -1) && (errno == EISDIR)) {
1771 baseflags &= ~O_ACCMODE;
1772 baseflags |= O_RDONLY;
1773 hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
1774 baseflags, mode);
1775 }
1776
1777 TALLOC_FREE(smb_fname_base);
1778
1779 if (hostfd == -1) {
1780 rc = -1;
1781 goto exit;
1782 }
1783
1784 if (flags & (O_CREAT | O_TRUNC)) {
1785 /*
1786 * The attribute does not exist or needs to be truncated,
1787 * create an AppleDouble EA
1788 */
1789 ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1790 handle, ADOUBLE_META, fsp);
1791 if (ad == NULL) {
1792 rc = -1;
1793 goto exit;
1794 }
1795
1796 rc = ad_write(ad, smb_fname->base_name);
1797 if (rc != 0) {
1798 rc = -1;
1799 goto exit;
1800 }
1801 } else {
1802 ad = ad_alloc(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1803 handle, ADOUBLE_META, fsp);
1804 if (ad == NULL) {
1805 rc = -1;
1806 goto exit;
1807 }
1808 if (ad_read(ad, smb_fname->base_name) == -1) {
1809 rc = -1;
1810 goto exit;
1811 }
1812 }
1813
1814 exit:
1815 DEBUG(10, ("fruit_open meta rc=%d, fd=%d\n", rc, hostfd));
1816 if (rc != 0) {
1817 int saved_errno = errno;
1818 if (hostfd >= 0) {
1819 /*
1820 * BUGBUGBUG -- we would need to call
1821 * fd_close_posix here, but we don't have a
1822 * full fsp yet
1823 */
1824 fsp->fh->fd = hostfd;
1825 SMB_VFS_CLOSE(fsp);
1826 }
1827 hostfd = -1;
1828 errno = saved_errno;
1829 }
1830 return hostfd;
1831 }
1832
1833 static int fruit_open_rsrc(vfs_handle_struct *handle,
1834 struct smb_filename *smb_fname,
1835 files_struct *fsp, int flags, mode_t mode)
1836 {
1837 int rc = 0;
1838 struct fruit_config_data *config = NULL;
1839 struct adouble *ad = NULL;
1840 struct smb_filename *smb_fname_base = NULL;
1841 char *adpath = NULL;
1842 int hostfd = -1;
1843
1844 DEBUG(10, ("fruit_open_rsrc for %s\n", smb_fname_str_dbg(smb_fname)));
1845
1846 SMB_VFS_HANDLE_GET_DATA(handle, config,
1847 struct fruit_config_data, return -1);
1848
1849 switch (config->rsrc) {
1850 case FRUIT_RSRC_STREAM:
1851 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1852 case FRUIT_RSRC_XATTR:
1853 #ifdef HAVE_ATTROPEN
1854 hostfd = attropen(smb_fname->base_name,
1855 AFPRESOURCE_EA_NETATALK, flags, mode);
1856 if (hostfd == -1) {
1857 return -1;
1858 }
1859 ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1860 handle, ADOUBLE_RSRC, fsp);
1861 if (ad == NULL) {
1862 rc = -1;
1863 goto exit;
1864 }
1865 goto exit;
1866 #else
1867 errno = ENOTSUP;
1868 return -1;
1869 #endif
1870 default:
1871 break;
1872 }
1873
1874 if (!(flags & O_CREAT) && !VALID_STAT(smb_fname->st)) {
1875 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
1876 if (rc != 0) {
1877 rc = -1;
1878 goto exit;
1879 }
1880 }
1881
1882 if (VALID_STAT(smb_fname->st) && S_ISDIR(smb_fname->st.st_ex_mode)) {
1883 /* sorry, but directories don't habe a resource fork */
1884 rc = -1;
1885 goto exit;
1886 }
1887
1888 rc = adouble_path(talloc_tos(), smb_fname->base_name, &adpath);
1889 if (rc != 0) {
1890 goto exit;
1891 }
1892
1893 /* Create an smb_filename with stream_name == NULL. */
1894 smb_fname_base = synthetic_smb_fname(talloc_tos(),
1895 adpath, NULL, NULL);
1896 if (smb_fname_base == NULL) {
1897 errno = ENOMEM;
1898 rc = -1;
1899 goto exit;
1900 }
1901
1902 /* Sanitize flags */
1903 if (flags & O_WRONLY) {
1904 /* We always need read access for the metadata header too */
1905 flags &= ~O_WRONLY;
1906 flags |= O_RDWR;
1907 }
1908
1909 hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
1910 flags, mode);
1911 if (hostfd == -1) {
1912 rc = -1;
1913 goto exit;
1914 }
1915
1916 /* REVIEW: we need this in ad_write() */
1917 fsp->fh->fd = hostfd;
1918
1919 if (flags & (O_CREAT | O_TRUNC)) {
1920 ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1921 handle, ADOUBLE_RSRC, fsp);
1922 if (ad == NULL) {
1923 rc = -1;
1924 goto exit;
1925 }
1926 rc = ad_write(ad, smb_fname->base_name);
1927 if (rc != 0) {
1928 rc = -1;
1929 goto exit;
1930 }
1931 } else {
1932 ad = ad_alloc(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1933 handle, ADOUBLE_RSRC, fsp);
1934 if (ad == NULL) {
1935 rc = -1;
1936 goto exit;
1937 }
1938 if (ad_read(ad, smb_fname->base_name) == -1) {
1939 rc = -1;
1940 goto exit;
1941 }
1942 }
1943
1944 exit:
1945
1946 TALLOC_FREE(adpath);
1947 TALLOC_FREE(smb_fname_base);
1948
1949 DEBUG(10, ("fruit_open resource fork: rc=%d, fd=%d\n", rc, hostfd));
1950 if (rc != 0) {
1951 int saved_errno = errno;
1952 if (hostfd >= 0) {
1953 /*
1954 * BUGBUGBUG -- we would need to call
1955 * fd_close_posix here, but we don't have a
1956 * full fsp yet
1957 */
1958 fsp->fh->fd = hostfd;
1959 SMB_VFS_CLOSE(fsp);
1960 }
1961 hostfd = -1;
1962 errno = saved_errno;
1963 }
1964 return hostfd;
1965 }
1966
1967 static int fruit_open(vfs_handle_struct *handle,
1968 struct smb_filename *smb_fname,
1969 files_struct *fsp, int flags, mode_t mode)
1970 {
1971 DEBUG(10, ("fruit_open called for %s\n",
1972 smb_fname_str_dbg(smb_fname)));
1973
1974 if (!is_ntfs_stream_smb_fname(smb_fname)) {
1975 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1976 }
1977
1978 if (is_afpinfo_stream(smb_fname)) {
1979 return fruit_open_meta(handle, smb_fname, fsp, flags, mode);
1980 } else if (is_afpresource_stream(smb_fname)) {
1981 return fruit_open_rsrc(handle, smb_fname, fsp, flags, mode);
1982 }
1983
1984 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1985 }
1986
1987 static int fruit_rename(struct vfs_handle_struct *handle,
1988 const struct smb_filename *smb_fname_src,
1989 const struct smb_filename *smb_fname_dst)
1990 {
1991 int rc = -1;
1992 char *src_adouble_path = NULL;
1993 char *dst_adouble_path = NULL;
1994 struct fruit_config_data *config = NULL;
1995
1996 rc = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
1997
1998 if (!VALID_STAT(smb_fname_src->st)
1999 || !S_ISREG(smb_fname_src->st.st_ex_mode)) {
2000 return rc;
2001 }
2002
2003 SMB_VFS_HANDLE_GET_DATA(handle, config,
2004 struct fruit_config_data, return -1);
2005
2006 if (config->rsrc == FRUIT_RSRC_XATTR) {
2007 return rc;
2008 }
2009
2010 rc = adouble_path(talloc_tos(), smb_fname_src->base_name,
2011 &src_adouble_path);
2012 if (rc != 0) {
2013 goto done;
2014 }
2015 rc = adouble_path(talloc_tos(), smb_fname_dst->base_name,
2016 &dst_adouble_path);
2017 if (rc != 0) {
2018 goto done;
2019 }
2020
2021 DEBUG(10, ("fruit_rename: %s -> %s\n",
2022 src_adouble_path, dst_adouble_path));
2023
2024 rc = rename(src_adouble_path, dst_adouble_path);
2025 if (errno == ENOENT) {
2026 rc = 0;
2027 }
2028
2029 TALLOC_FREE(src_adouble_path);
2030 TALLOC_FREE(dst_adouble_path);
2031
2032 done:
2033 return rc;
2034 }
2035
2036 static int fruit_unlink(vfs_handle_struct *handle,
2037 const struct smb_filename *smb_fname)
2038 {
2039 int rc = -1;
2040 struct fruit_config_data *config = NULL;
2041 char *adp = NULL;
2042
2043 if (!is_ntfs_stream_smb_fname(smb_fname)) {
2044 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
2045 }
2046
2047 SMB_VFS_HANDLE_GET_DATA(handle, config,
2048 struct fruit_config_data, return -1);
2049
2050 if (is_afpinfo_stream(smb_fname)) {
2051 if (config->meta == FRUIT_META_STREAM) {
2052 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
2053 } else {
2054 rc = SMB_VFS_REMOVEXATTR(handle->conn,
2055 smb_fname->base_name,
2056 AFPINFO_EA_NETATALK);
2057 }
2058 } else if (is_afpresource_stream(smb_fname)) {
2059 if (config->rsrc == FRUIT_RSRC_ADFILE) {
2060 rc = adouble_path(talloc_tos(),
2061 smb_fname->base_name, &adp);
2062 if (rc != 0) {
2063 return -1;
2064 }
2065 /* FIXME: direct unlink(), missing smb_fname */
2066 rc = unlink(adp);
2067 if ((rc == -1) && (errno == ENOENT)) {
2068 rc = 0;
2069 }
2070 } else {
2071 rc = SMB_VFS_REMOVEXATTR(handle->conn,
2072 smb_fname->base_name,
2073 AFPRESOURCE_EA_NETATALK);
2074 }
2075 } else {
2076 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
2077 }
2078
2079 TALLOC_FREE(adp);
2080 return rc;
2081 }
2082
2083 static int fruit_chmod(vfs_handle_struct *handle,
2084 const char *path,
2085 mode_t mode)
2086 {
2087 int rc = -1;
2088 char *adp = NULL;
2089 struct fruit_config_data *config = NULL;
2090 SMB_STRUCT_STAT sb;
2091
2092 rc = SMB_VFS_NEXT_CHMOD(handle, path, mode);
2093 if (rc != 0) {
2094 return rc;
2095 }
2096
2097 SMB_VFS_HANDLE_GET_DATA(handle, config,
2098 struct fruit_config_data, return -1);
2099
2100 if (config->rsrc == FRUIT_RSRC_XATTR) {
2101 return 0;
2102 }
2103
2104 /* FIXME: direct sys_lstat(), missing smb_fname */
2105 rc = sys_lstat(path, &sb, false);
2106 if (rc != 0 || !S_ISREG(sb.st_ex_mode)) {
2107 return rc;
2108 }
2109
2110 rc = adouble_path(talloc_tos(), path, &adp);
2111 if (rc != 0) {
2112 return -1;
2113 }
2114
2115 DEBUG(10, ("fruit_chmod: %s\n", adp));
2116
2117 rc = SMB_VFS_NEXT_CHMOD(handle, adp, mode);
2118 if (errno == ENOENT) {
2119 rc = 0;
2120 }
2121
2122 TALLOC_FREE(adp);
2123 return rc;
2124 }
2125
2126 static int fruit_chown(vfs_handle_struct *handle,
2127 const char *path,
2128 uid_t uid,
2129 gid_t gid)
2130 {
2131 int rc = -1;
2132 char *adp = NULL;
2133 struct fruit_config_data *config = NULL;
2134 SMB_STRUCT_STAT sb;
2135
2136 rc = SMB_VFS_NEXT_CHOWN(handle, path, uid, gid);
2137 if (rc != 0) {
2138 return rc;
2139 }
2140
2141 SMB_VFS_HANDLE_GET_DATA(handle, config,
2142 struct fruit_config_data, return -1);
2143
2144 if (config->rsrc == FRUIT_RSRC_XATTR) {
2145 return rc;
2146 }
2147
2148 /* FIXME: direct sys_lstat(), missing smb_fname */
2149 rc = sys_lstat(path, &sb, false);
2150 if (rc != 0 || !S_ISREG(sb.st_ex_mode)) {
2151 return rc;
2152 }
2153
2154 rc = adouble_path(talloc_tos(), path, &adp);
2155 if (rc != 0) {
2156 goto done;
2157 }
2158
2159 DEBUG(10, ("fruit_chown: %s\n", adp));
2160
2161 rc = SMB_VFS_NEXT_CHOWN(handle, adp, uid, gid);
2162 if (errno == ENOENT) {
2163 rc = 0;
2164 }
2165
2166 done:
2167 TALLOC_FREE(adp);
2168 return rc;
2169 }
2170
2171 static int fruit_rmdir(struct vfs_handle_struct *handle, const char *path)
2172 {
2173 DIR *dh = NULL;
2174 struct dirent *de;
2175 struct fruit_config_data *config;
2176
2177 SMB_VFS_HANDLE_GET_DATA(handle, config,
2178 struct fruit_config_data, return -1);
2179
2180 if (!handle->conn->cwd || !path || (config->rsrc == FRUIT_RSRC_XATTR)) {
2181 goto exit_rmdir;
2182 }
2183
2184 /*
2185 * Due to there is no way to change bDeleteVetoFiles variable
2186 * from this module, need to clean up ourselves
2187 */
2188 dh = opendir(path);
2189 if (dh == NULL) {
2190 goto exit_rmdir;
2191 }
2192
2193 while ((de = readdir(dh)) != NULL) {
2194 if ((strncmp(de->d_name,
2195 ADOUBLE_NAME_PREFIX,
2196 strlen(ADOUBLE_NAME_PREFIX))) == 0) {
2197 char *p = talloc_asprintf(talloc_tos(),
2198 "%s/%s",
2199 path, de->d_name);
2200 if (p == NULL) {
2201 goto exit_rmdir;
2202 }
2203 DEBUG(10, ("fruit_rmdir: delete %s\n", p));
2204 (void)unlink(p);
2205 TALLOC_FREE(p);
2206 }
2207 }
2208
2209 exit_rmdir:
2210 if (dh) {
2211 closedir(dh);
2212 }
2213 return SMB_VFS_NEXT_RMDIR(handle, path);
2214 }
2215
2216 static ssize_t fruit_pread(vfs_handle_struct *handle,
2217 files_struct *fsp, void *data,
2218 size_t n, off_t offset)
2219 {
2220 int rc = 0;
2221 struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
2222 handle, fsp);
2223 struct fruit_config_data *config = NULL;
2224 AfpInfo *ai = NULL;
2225 ssize_t len;
2226 char *name = NULL;
2227 char *tmp_base_name = NULL;
2228 NTSTATUS status;
2229
2230 DEBUG(10, ("fruit_pread: offset=%d, size=%d\n", (int)offset, (int)n));
2231
2232 if (!fsp->base_fsp) {
2233 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2234 }
2235
2236 SMB_VFS_HANDLE_GET_DATA(handle, config,
2237 struct fruit_config_data, return -1);
2238
2239 /* fsp_name is not converted with vfs_catia */
2240 tmp_base_name = fsp->base_fsp->fsp_name->base_name;
2241 status = SMB_VFS_TRANSLATE_NAME(handle->conn,
2242 fsp->base_fsp->fsp_name->base_name,
2243 vfs_translate_to_unix,
2244 talloc_tos(), &name);
2245 if (!NT_STATUS_IS_OK(status)) {
2246 errno = map_errno_from_nt_status(status);
2247 rc = -1;
2248 goto exit;
2249 }
2250 fsp->base_fsp->fsp_name->base_name = name;
2251
2252 if (ad == NULL) {
2253 len = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2254 if (len == -1) {
2255 rc = -1;
2256 goto exit;
2257 }
2258 goto exit;
2259 }
2260
2261 if (!fruit_fsp_recheck(ad, fsp)) {
2262 rc = -1;
2263 goto exit;
2264 }
2265
2266 if (ad->ad_type == ADOUBLE_META) {
2267 ai = afpinfo_new(talloc_tos());
2268 if (ai == NULL) {
2269 rc = -1;
2270 goto exit;
2271 }
2272
2273 len = ad_read(ad, fsp->base_fsp->fsp_name->base_name);
2274 if (len == -1) {
2275 rc = -1;
2276 goto exit;
2277 }
2278
2279 memcpy(&ai->afpi_FinderInfo[0],
2280 ad_entry(ad, ADEID_FINDERI),
2281 ADEDLEN_FINDERI);
2282 len = afpinfo_pack(ai, data);
2283 if (len != AFP_INFO_SIZE) {
2284 rc = -1;
2285 goto exit;
2286 }
2287 } else {
2288 len = SMB_VFS_NEXT_PREAD(
2289 handle, fsp, data, n,
2290 offset + ad_getentryoff(ad, ADEID_RFORK));
2291 if (len == -1) {
2292 rc = -1;
2293 goto exit;
2294 }
2295 }
2296 exit:
2297 fsp->base_fsp->fsp_name->base_name = tmp_base_name;
2298 TALLOC_FREE(name);
2299 TALLOC_FREE(ai);
2300 if (rc != 0) {
2301 len = -1;
2302 }
2303 DEBUG(10, ("fruit_pread: rc=%d, len=%zd\n", rc, len));
2304 return len;
2305 }
2306
2307 static ssize_t fruit_pwrite(vfs_handle_struct *handle,
2308 files_struct *fsp, const void *data,
2309 size_t n, off_t offset)
2310 {
2311 int rc = 0;
2312 struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
2313 handle, fsp);
2314 struct fruit_config_data *config = NULL;
2315 AfpInfo *ai = NULL;
2316 ssize_t len;
2317 char *name = NULL;
2318 char *tmp_base_name = NULL;
2319 NTSTATUS status;
2320
2321 DEBUG(10, ("fruit_pwrite: offset=%d, size=%d\n", (int)offset, (int)n));
2322
2323 if (!fsp->base_fsp) {
2324 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2325 }
2326
2327 SMB_VFS_HANDLE_GET_DATA(handle, config,
2328 struct fruit_config_data, return -1);
2329
2330 tmp_base_name = fsp->base_fsp->fsp_name->base_name;
2331 status = SMB_VFS_TRANSLATE_NAME(handle->conn,
2332 fsp->base_fsp->fsp_name->base_name,
2333 vfs_translate_to_unix,
2334 talloc_tos(), &name);
2335 if (!NT_STATUS_IS_OK(status)) {
2336 errno = map_errno_from_nt_status(status);
2337 rc = -1;
2338 goto exit;
2339 }
2340 fsp->base_fsp->fsp_name->base_name = name;
2341
2342 if (ad == NULL) {
2343 len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2344 if (len != n) {
2345 rc = -1;
2346 goto exit;
2347 }
2348 goto exit;
2349 }
2350
2351 if (!fruit_fsp_recheck(ad, fsp)) {
2352 rc = -1;
2353 goto exit;
2354 }
2355
2356 if (ad->ad_type == ADOUBLE_META) {
2357 if (n != AFP_INFO_SIZE || offset != 0) {
2358 DEBUG(1, ("unexpected offset=%jd or size=%jd\n",
2359 (intmax_t)offset, (intmax_t)n));
2360 rc = -1;
2361 goto exit;
2362 }
2363 ai = afpinfo_unpack(talloc_tos(), data);
2364 if (ai == NULL) {
2365 rc = -1;
2366 goto exit;
2367 }
2368 memcpy(ad_entry(ad, ADEID_FINDERI),
2369 &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
2370 rc = ad_write(ad, name);
2371 } else {
2372 len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n,
2373 offset + ad_getentryoff(ad, ADEID_RFORK));
2374 if (len != n) {
2375 rc = -1;
2376 goto exit;
2377 }
2378
2379 if (config->rsrc == FRUIT_RSRC_ADFILE) {
2380 rc = ad_read(ad, name);
2381 if (rc == -1) {
2382 goto exit;
2383 }
2384 rc = 0;
2385
2386 if ((len + offset) > ad_getentrylen(ad, ADEID_RFORK)) {
2387 ad_setentrylen(ad, ADEID_RFORK, len + offset);
2388 rc = ad_write(ad, name);
2389 }
2390 }
2391 }
2392
2393 exit:
2394 fsp->base_fsp->fsp_name->base_name = tmp_base_name;
2395 TALLOC_FREE(name);
2396 TALLOC_FREE(ai);
2397 if (rc != 0) {
2398 return -1;
2399 }
2400 return n;
2401 }
2402
2403 /**
2404 * Helper to stat/lstat the base file of an smb_fname.
2405 */
2406 static int fruit_stat_base(vfs_handle_struct *handle,
2407 struct smb_filename *smb_fname,
2408 bool follow_links)
2409 {
2410 char *tmp_stream_name;
2411 int rc;
2412
2413 tmp_stream_name = smb_fname->stream_name;
2414 smb_fname->stream_name = NULL;
2415 if (follow_links) {
2416 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
2417 } else {
2418 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
2419 }
2420 smb_fname->stream_name = tmp_stream_name;
2421 return rc;
2422 }
2423
2424 static int fruit_stat_meta(vfs_handle_struct *handle,
2425 struct smb_filename *smb_fname,
2426 bool follow_links)
2427 {
2428 /* Populate the stat struct with info from the base file. */
2429 if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
2430 return -1;
2431 }
2432 smb_fname->st.st_ex_size = AFP_INFO_SIZE;
2433 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
2434 smb_fname->stream_name);
2435 return 0;
2436 }
2437
2438 static int fruit_stat_rsrc(vfs_handle_struct *handle,
2439 struct smb_filename *smb_fname,
2440 bool follow_links)
2441
2442 {
2443 struct adouble *ad = NULL;
2444
2445 DEBUG(10, ("fruit_stat_rsrc called for %s\n",
2446 smb_fname_str_dbg(smb_fname)));
2447
2448 ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_RSRC);
2449 if (ad == NULL) {
2450 errno = ENOENT;
2451 return -1;
2452 }
2453
2454 /* Populate the stat struct with info from the base file. */
2455 if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
2456 TALLOC_FREE(ad);
2457 return -1;
2458 }
2459
2460 smb_fname->st.st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
2461 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
2462 smb_fname->stream_name);
2463 TALLOC_FREE(ad);
2464 return 0;
2465 }
2466
2467 static int fruit_stat(vfs_handle_struct *handle,
2468 struct smb_filename *smb_fname)
2469 {
2470 int rc = -1;
2471
2472 DEBUG(10, ("fruit_stat called for %s\n",
2473 smb_fname_str_dbg(smb_fname)));
2474
2475 if (!is_ntfs_stream_smb_fname(smb_fname)
2476 || is_ntfs_default_stream_smb_fname(smb_fname)) {
2477 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
2478 if (rc == 0) {
2479 update_btime(handle, smb_fname);
2480 }
2481 return rc;
2482 }
2483
2484 /*
2485 * Note if lp_posix_paths() is true, we can never
2486 * get here as is_ntfs_stream_smb_fname() is
2487 * always false. So we never need worry about
2488 * not following links here.
2489 */
2490
2491 if (is_afpinfo_stream(smb_fname)) {
2492 rc = fruit_stat_meta(handle, smb_fname, true);
2493 } else if (is_afpresource_stream(smb_fname)) {
2494 rc = fruit_stat_rsrc(handle, smb_fname, true);
2495 } else {
2496 return SMB_VFS_NEXT_STAT(handle, smb_fname);
2497 }
2498
2499 if (rc == 0) {
2500 update_btime(handle, smb_fname);
2501 smb_fname->st.st_ex_mode &= ~S_IFMT;
2502 smb_fname->st.st_ex_mode |= S_IFREG;
2503 smb_fname->st.st_ex_blocks =
2504 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
2505 }
2506 return rc;
2507 }
2508
2509 static int fruit_lstat(vfs_handle_struct *handle,
2510 struct smb_filename *smb_fname)
2511 {
2512 int rc = -1;
2513
2514 DEBUG(10, ("fruit_lstat called for %s\n",
2515 smb_fname_str_dbg(smb_fname)));
2516
2517 if (!is_ntfs_stream_smb_fname(smb_fname)
2518 || is_ntfs_default_stream_smb_fname(smb_fname)) {
2519 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
2520 if (rc == 0) {
2521 update_btime(handle, smb_fname);
2522 }
2523 return rc;
2524 }
2525
2526 if (is_afpinfo_stream(smb_fname)) {
2527 rc = fruit_stat_meta(handle, smb_fname, false);
2528 } else if (is_afpresource_stream(smb_fname)) {
2529 rc = fruit_stat_rsrc(handle, smb_fname, false);
2530 } else {
2531 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
2532 }
2533
2534 if (rc == 0) {
2535 update_btime(handle, smb_fname);
2536 smb_fname->st.st_ex_mode &= ~S_IFMT;
2537 smb_fname->st.st_ex_mode |= S_IFREG;
2538 smb_fname->st.st_ex_blocks =
2539 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
2540 }
2541 return rc;
2542 }
2543
2544 static int fruit_fstat_meta(vfs_handle_struct *handle,
2545 files_struct *fsp,
2546 SMB_STRUCT_STAT *sbuf)
2547 {
2548 DEBUG(10, ("fruit_fstat_meta called for %s\n",
2549 smb_fname_str_dbg(fsp->base_fsp->fsp_name)));
2550
2551 /* Populate the stat struct with info from the base file. */
2552 if (fruit_stat_base(handle, fsp->base_fsp->fsp_name, false) == -1) {
2553 return -1;
2554 }
2555 *sbuf = fsp->base_fsp->fsp_name->st;
2556 sbuf->st_ex_size = AFP_INFO_SIZE;
2557 sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
2558
2559 return 0;
2560 }
2561
2562 static int fruit_fstat_rsrc(vfs_handle_struct *handle, files_struct *fsp,
2563 SMB_STRUCT_STAT *sbuf)
2564 {
2565 struct fruit_config_data *config;
2566 struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
2567 handle, fsp);
2568
2569 DEBUG(10, ("fruit_fstat_rsrc called for %s\n",
2570 smb_fname_str_dbg(fsp->base_fsp->fsp_name)));
2571
2572 SMB_VFS_HANDLE_GET_DATA(handle, config,
2573 struct fruit_config_data, return -1);
2574
2575 if (config->rsrc == FRUIT_RSRC_STREAM) {
2576 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
2577 }
2578
2579 /* Populate the stat struct with info from the base file. */
2580 if (fruit_stat_base(handle, fsp->base_fsp->fsp_name, false) == -1) {
2581 return -1;
2582 }
2583 *sbuf = fsp->base_fsp->fsp_name->st;
2584 sbuf->st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
2585 sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
2586
2587 DEBUG(10, ("fruit_fstat_rsrc %s, size: %zd\n",
2588 smb_fname_str_dbg(fsp->fsp_name),
2589 (ssize_t)sbuf->st_ex_size));
2590
2591 return 0;
2592 }
2593
2594 static int fruit_fstat(vfs_handle_struct *handle, files_struct *fsp,
2595 SMB_STRUCT_STAT *sbuf)
2596 {
2597 int rc;
2598 char *name = NULL;
2599 char *tmp_base_name = NULL;
2600 NTSTATUS status;
2601 struct adouble *ad = (struct adouble *)
2602 VFS_FETCH_FSP_EXTENSION(handle, fsp);
2603
2604 DEBUG(10, ("fruit_fstat called for %s\n",
2605 smb_fname_str_dbg(fsp->fsp_name)));
2606
2607 if (fsp->base_fsp) {
2608 tmp_base_name = fsp->fsp_name->base_name;
2609 /* fsp_name is not converted with vfs_catia */
2610 status = SMB_VFS_TRANSLATE_NAME(
2611 handle->conn,
2612 fsp->base_fsp->fsp_name->base_name,
2613 vfs_translate_to_unix,
2614 talloc_tos(), &name);
2615
2616 if (!NT_STATUS_IS_OK(status)) {
2617 errno = map_errno_from_nt_status(status);
2618 rc = -1;
2619 goto exit;
2620 }
2621 fsp->base_fsp->fsp_name->base_name = name;
2622 }
2623
2624 if (ad == NULL || fsp->base_fsp == NULL) {
2625 rc = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
2626 goto exit;
2627 }
2628
2629 if (!fruit_fsp_recheck(ad, fsp)) {
2630 rc = -1;
2631 goto exit;
2632 }
2633
2634 switch (ad->ad_type) {
2635 case ADOUBLE_META:
2636 rc = fruit_fstat_meta(handle, fsp, sbuf);
2637 break;
2638 case ADOUBLE_RSRC:
2639 rc = fruit_fstat_rsrc(handle, fsp, sbuf);
2640 break;
2641 default:
2642 DEBUG(10, ("fruit_fstat %s: bad type\n",
2643 smb_fname_str_dbg(fsp->fsp_name)));
2644 rc = -1;
2645 goto exit;
2646 }
2647
2648 if (rc == 0) {
2649 sbuf->st_ex_mode &= ~S_IFMT;
2650 sbuf->st_ex_mode |= S_IFREG;
2651 sbuf->st_ex_blocks = sbuf->st_ex_size / STAT_ST_BLOCKSIZE + 1;
2652 }
2653
2654 exit:
2655 DEBUG(10, ("fruit_fstat %s, size: %zd\n",
2656 smb_fname_str_dbg(fsp->fsp_name),
2657 (ssize_t)sbuf->st_ex_size));
2658 if (tmp_base_name) {
2659 fsp->base_fsp->fsp_name->base_name = tmp_base_name;
2660 }
2661 TALLOC_FREE(name);
2662 return rc;
2663 }
2664
2665 static NTSTATUS fruit_streaminfo(vfs_handle_struct *handle,
2666 struct files_struct *fsp,
2667 const char *fname,
2668 TALLOC_CTX *mem_ctx,
2669 unsigned int *pnum_streams,
2670 struct stream_struct **pstreams)
2671 {
2672 struct fruit_config_data *config = NULL;
2673 struct smb_filename *smb_fname = NULL;
2674 struct adouble *ad = NULL;
2675
2676 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
2677 return NT_STATUS_UNSUCCESSFUL);
2678 DEBUG(10, ("fruit_streaminfo called for %s\n", fname));
2679
2680 smb_fname = synthetic_smb_fname(talloc_tos(), fname, NULL, NULL);
2681 if (smb_fname == NULL) {
2682 return NT_STATUS_NO_MEMORY;
2683 }
2684
2685 if (config->meta == FRUIT_META_NETATALK) {
2686 ad = ad_get(talloc_tos(), handle,
2687 smb_fname->base_name, ADOUBLE_META);
2688 if (ad && !empty_finderinfo(ad)) {
2689 if (!add_fruit_stream(
2690 mem_ctx, pnum_streams, pstreams,
2691 AFPINFO_STREAM_NAME, AFP_INFO_SIZE,
2692 smb_roundup(handle->conn,
2693 AFP_INFO_SIZE))) {
2694 TALLOC_FREE(ad);
2695 TALLOC_FREE(smb_fname);
2696 return NT_STATUS_NO_MEMORY;
2697 }
2698 }
2699 TALLOC_FREE(ad);
2700 }
2701
2702 if (config->rsrc != FRUIT_RSRC_STREAM) {
2703 ad = ad_get(talloc_tos(), handle, smb_fname->base_name,
2704 ADOUBLE_RSRC);
2705 if (ad) {
2706 if (!add_fruit_stream(
2707 mem_ctx, pnum_streams, pstreams,
2708 AFPRESOURCE_STREAM_NAME,
2709 ad_getentrylen(ad, ADEID_RFORK),
2710 smb_roundup(handle->conn,
2711 ad_getentrylen(
2712 ad, ADEID_RFORK)))) {
2713 TALLOC_FREE(ad);
2714 TALLOC_FREE(smb_fname);
2715 return NT_STATUS_NO_MEMORY;
2716 }
2717 }
2718 TALLOC_FREE(ad);
2719 }
2720
2721 TALLOC_FREE(smb_fname);
2722
2723 return SMB_VFS_NEXT_STREAMINFO(handle, fsp, fname, mem_ctx,
2724 pnum_streams, pstreams);
2725 }
2726
2727 static int fruit_ntimes(vfs_handle_struct *handle,
2728 const struct smb_filename *smb_fname,
2729 struct smb_file_time *ft)
2730 {
2731 int rc = 0;
2732 struct adouble *ad = NULL;
2733
2734 if (null_timespec(ft->create_time)) {
2735 goto exit;
2736 }
2737
2738 DEBUG(10,("set btime for %s to %s\n", smb_fname_str_dbg(smb_fname),
2739 time_to_asc(convert_timespec_to_time_t(ft->create_time))));
2740
2741 ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_META);
2742 if (ad == NULL) {
2743 goto exit;
2744 }
2745
2746 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX,
2747 convert_time_t_to_uint32_t(ft->create_time.tv_sec));
2748
2749 rc = ad_write(ad, smb_fname->base_name);
2750
2751 exit:
2752
2753 TALLOC_FREE(ad);
2754 if (rc != 0) {
2755 DEBUG(1, ("fruit_ntimes: %s\n", smb_fname_str_dbg(smb_fname)));
2756 return -1;
2757 }
2758 return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
2759 }
2760
2761 static int fruit_fallocate(struct vfs_handle_struct *handle,
2762 struct files_struct *fsp,
2763 enum vfs_fallocate_mode mode,
2764 off_t offset,
2765 off_t len)
2766 {
2767 struct adouble *ad =
2768 (struct adouble *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
2769
2770 if (ad == NULL) {
2771 return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
2772 }
2773
2774 if (!fruit_fsp_recheck(ad, fsp)) {
2775 return errno;
2776 }
2777
2778 /* Let the pwrite code path handle it. */
2779 return ENOSYS;
2780 }
2781
2782 static int fruit_ftruncate(struct vfs_handle_struct *handle,
2783 struct files_struct *fsp,
2784 off_t offset)
2785 {
2786 int rc = 0;
2787 struct adouble *ad =
2788 (struct adouble *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
2789 struct fruit_config_data *config;
2790
2791 DEBUG(10, ("streams_xattr_ftruncate called for file %s offset %.0f\n",
2792 fsp_str_dbg(fsp), (double)offset));
2793
2794 if (ad == NULL) {
2795 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
2796 }
2797
2798 if (!fruit_fsp_recheck(ad, fsp)) {
2799 return -1;
2800 }
2801
2802 SMB_VFS_HANDLE_GET_DATA(handle, config,
2803 struct fruit_config_data, return -1);
2804
2805 switch (ad->ad_type) {
2806 case ADOUBLE_META:
2807 /*
2808 * As this request hasn't been seen in the wild,
2809 * the only sensible use I can imagine is the client
2810 * truncating the stream to 0 bytes size.
2811 * We simply remove the metadata on such a request.
2812 */
2813 if (offset == 0) {
2814 rc = SMB_VFS_FREMOVEXATTR(fsp,
2815 AFPRESOURCE_EA_NETATALK);
2816 }
2817 break;
2818 case ADOUBLE_RSRC:
2819 if (config->rsrc == FRUIT_RSRC_XATTR && offset == 0) {
2820 rc = SMB_VFS_FREMOVEXATTR(fsp,
2821 AFPRESOURCE_EA_NETATALK);
2822 } else {
2823 rc = SMB_VFS_NEXT_FTRUNCATE(
2824 handle, fsp,
2825 offset + ad_getentryoff(ad, ADEID_RFORK));
2826 if (rc != 0) {
2827 return -1;
2828 }
2829 ad_setentrylen(ad, ADEID_RFORK, offset);
2830 rc = ad_write(ad, NULL);
2831 if (rc != 0) {
2832 return -1;
2833 }
2834 }
2835 break;
2836 default:
2837 return -1;
2838 }
2839
2840 return rc;
2841 }
2842
2843 static NTSTATUS fruit_create_file(vfs_handle_struct *handle,
2844 struct smb_request *req,
2845 uint16_t root_dir_fid,
2846 struct smb_filename *smb_fname,
2847 uint32_t access_mask,
2848 uint32_t share_access,
2849 uint32_t create_disposition,
2850 uint32_t create_options,
2851 uint32_t file_attributes,
2852 uint32_t oplock_request,
2853 struct smb2_lease *lease,
2854 uint64_t allocation_size,
2855 uint32_t private_flags,
2856 struct security_descriptor *sd,
2857 struct ea_list *ea_list,
2858 files_struct **result,
2859 int *pinfo)
2860 {
2861 NTSTATUS status;
2862 struct fruit_config_data *config = NULL;
2863
2864 status = SMB_VFS_NEXT_CREATE_FILE(
2865 handle, req, root_dir_fid, smb_fname,
2866 access_mask, share_access,
2867 create_disposition, create_options,
2868 file_attributes, oplock_request,
2869 lease,
2870 allocation_size, private_flags,
2871 sd, ea_list, result,
2872 pinfo);
2873
2874 if (!NT_STATUS_IS_OK(status)) {
2875 return status;
2876 }
2877
2878 if (is_ntfs_stream_smb_fname(smb_fname)
2879 || (*result == NULL)
2880 || ((*result)->is_directory)) {
2881 return status;
2882 }
2883
2884 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
2885 return NT_STATUS_UNSUCCESSFUL);
2886
2887 if (config->locking == FRUIT_LOCKING_NETATALK) {
2888 status = fruit_check_access(
2889 handle, *result,
2890 access_mask,
2891 map_share_mode_to_deny_mode(share_access, 0));
2892 if (!NT_STATUS_IS_OK(status)) {
2893 goto fail;
2894 }
2895 }
2896
2897 return status;
2898
2899 fail:
2900 DEBUG(1, ("fruit_create_file: %s\n", nt_errstr(status)));
2901
2902 if (*result) {
2903 close_file(req, *result, ERROR_CLOSE);
2904 *result = NULL;
2905 }
2906
2907 return status;
2908 }
2909
2910 static struct vfs_fn_pointers vfs_fruit_fns = {
2911 .connect_fn = fruit_connect,
2912
2913 /* File operations */
2914 .chmod_fn = fruit_chmod,
2915 .chown_fn = fruit_chown,
2916 .unlink_fn = fruit_unlink,
2917 .rename_fn = fruit_rename,
2918 .rmdir_fn = fruit_rmdir,
2919 .open_fn = fruit_open,
2920 .pread_fn = fruit_pread,
2921 .pwrite_fn = fruit_pwrite,
2922 .stat_fn = fruit_stat,
2923 .lstat_fn = fruit_lstat,
2924 .fstat_fn = fruit_fstat,
2925 .streaminfo_fn = fruit_streaminfo,
2926 .ntimes_fn = fruit_ntimes,
2927 .unlink_fn = fruit_unlink,
2928 .ftruncate_fn = fruit_ftruncate,
2929 .fallocate_fn = fruit_fallocate,
2930 .create_file_fn = fruit_create_file,
2931 };
2932
2933 NTSTATUS vfs_fruit_init(void);
2934 NTSTATUS vfs_fruit_init(void)
2935 {
2936 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fruit",
2937 &vfs_fruit_fns);
2938 if (!NT_STATUS_IS_OK(ret)) {
2939 return ret;
2940 }
2941
2942 vfs_fruit_debug_level = debug_add_class("fruit");
2943 if (vfs_fruit_debug_level == -1) {
2944 vfs_fruit_debug_level = DBGC_VFS;
2945 DEBUG(0, ("%s: Couldn't register custom debugging class!\n",
2946 "vfs_fruit_init"));
2947 } else {
2948 DEBUG(10, ("%s: Debug class number of '%s': %d\n",
2949 "vfs_fruit_init","fruit",vfs_fruit_debug_level));
2950 }
2951
2952 return ret;
2953 }
Samba GIT mirror