?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
vfs_fruit: update rfork size in AppleDouble header
[Samba.git] / source3 / modules / vfs_fruit.c
blob0441d5ebd48501fb969fa76f14ed0e512d1d6709
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
1118 * @param[in] path pathname to file or directory, may be NULL for a
1119 * resource fork
1120 *
1121 * @return status code, 0 means success
1122 **/
1123 static int ad_write(struct adouble *ad, const char *path)
1124 {
1125 int rc = 0;
1126 ssize_t len;
1127
1128 rc = ad_pack(ad);
1129 if (rc != 0) {
1130 goto exit;
1131 }
1132
1133 switch (ad->ad_type) {
1134 case ADOUBLE_META:
1135 rc = SMB_VFS_SETXATTR(ad->ad_handle->conn, path,
1136 AFPINFO_EA_NETATALK, ad->ad_data,
1137 AD_DATASZ_XATTR, 0);
1138 break;
1139 case ADOUBLE_RSRC:
1140 if ((ad->ad_fsp == NULL)
1141 || (ad->ad_fsp->fh == NULL)
1142 || (ad->ad_fsp->fh->fd == -1)) {
1143 rc = -1;
1144 goto exit;
1145 }
1146 /* FIXME: direct sys_pwrite(), don't have an fsp */
1147 len = sys_pwrite(ad->ad_fsp->fh->fd, ad->ad_data,
1148 talloc_get_size(ad->ad_data), 0);
1149 if (len != talloc_get_size(ad->ad_data)) {
1150 DEBUG(1, ("short write on %s: %zd",
1151 fsp_str_dbg(ad->ad_fsp), len));
1152 rc = -1;
1153 goto exit;
1154 }
1155 break;
1156 default:
1157 return -1;
1158 }
1159 exit:
1160 return rc;
1161 }
1162
1163 /*****************************************************************************
1164 * Helper functions
1165 *****************************************************************************/
1166
1167 static bool is_afpinfo_stream(const struct smb_filename *smb_fname)
1168 {
1169 if (strncasecmp_m(smb_fname->stream_name,
1170 AFPINFO_STREAM_NAME,
1171 strlen(AFPINFO_STREAM_NAME)) == 0) {
1172 return true;
1173 }
1174 return false;
1175 }
1176
1177 static bool is_afpresource_stream(const struct smb_filename *smb_fname)
1178 {
1179 if (strncasecmp_m(smb_fname->stream_name,
1180 AFPRESOURCE_STREAM_NAME,
1181 strlen(AFPRESOURCE_STREAM_NAME)) == 0) {
1182 return true;
1183 }
1184 return false;
1185 }
1186
1187 /**
1188 * Test whether stream is an Apple stream, not used atm
1189 **/
1190 #if 0
1191 static bool is_apple_stream(const struct smb_filename *smb_fname)
1192 {
1193 if (is_afpinfo_stream(smb_fname)) {
1194 return true;
1195 }
1196 if (is_afpresource_stream(smb_fname)) {
1197 return true;
1198 }
1199 return false;
1200 }
1201 #endif
1202
1203 /**
1204 * Initialize config struct from our smb.conf config parameters
1205 **/
1206 static int init_fruit_config(vfs_handle_struct *handle)
1207 {
1208 struct fruit_config_data *config;
1209 int enumval;
1210
1211 config = talloc_zero(handle->conn, struct fruit_config_data);
1212 if (!config) {
1213 DEBUG(1, ("talloc_zero() failed\n"));
1214 errno = ENOMEM;
1215 return -1;
1216 }
1217
1218 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1219 "ressource", fruit_rsrc, FRUIT_RSRC_ADFILE);
1220 if (enumval == -1) {
1221 DEBUG(1, ("value for %s: ressource type unknown\n",
1222 FRUIT_PARAM_TYPE_NAME));
1223 return -1;
1224 }
1225 config->rsrc = (enum fruit_rsrc)enumval;
1226
1227 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1228 "metadata", fruit_meta, FRUIT_META_NETATALK);
1229 if (enumval == -1) {
1230 DEBUG(1, ("value for %s: metadata type unknown\n",
1231 FRUIT_PARAM_TYPE_NAME));
1232 return -1;
1233 }
1234 config->meta = (enum fruit_meta)enumval;
1235
1236 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1237 "locking", fruit_locking, FRUIT_LOCKING_NONE);
1238 if (enumval == -1) {
1239 DEBUG(1, ("value for %s: locking type unknown\n",
1240 FRUIT_PARAM_TYPE_NAME));
1241 return -1;
1242 }
1243 config->locking = (enum fruit_locking)enumval;
1244
1245 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1246 "encoding", fruit_encoding, FRUIT_ENC_PRIVATE);
1247 if (enumval == -1) {
1248 DEBUG(1, ("value for %s: encoding type unknown\n",
1249 FRUIT_PARAM_TYPE_NAME));
1250 return -1;
1251 }
1252 config->encoding = (enum fruit_encoding)enumval;
1253
1254 SMB_VFS_HANDLE_SET_DATA(handle, config,
1255 NULL, struct fruit_config_data,
1256 return -1);
1257
1258 return 0;
1259 }
1260
1261 /**
1262 * Prepend "._" to a basename
1263 **/
1264 static int adouble_path(TALLOC_CTX *ctx, const char *path_in, char **path_out)
1265 {
1266 char *parent;
1267 const char *basename;
1268
1269 if (!parent_dirname(ctx, path_in, &parent, &basename)) {
1270 return -1;
1271 }
1272
1273 *path_out = talloc_asprintf(ctx, "%s/._%s", parent, basename);
1274 if (*path_out == NULL) {
1275 return -1;
1276 }
1277
1278 return 0;
1279 }
1280
1281 /**
1282 * Allocate and initialize an AfpInfo struct
1283 **/
1284 static AfpInfo *afpinfo_new(TALLOC_CTX *ctx)
1285 {
1286 AfpInfo *ai = talloc_zero(ctx, AfpInfo);
1287 if (ai == NULL) {
1288 return NULL;
1289 }
1290 ai->afpi_Signature = AFP_Signature;
1291 ai->afpi_Version = AFP_Version;
1292 ai->afpi_BackupTime = AD_DATE_START;
1293 return ai;
1294 }
1295
1296 /**
1297 * Pack an AfpInfo struct into a buffer
1298 *
1299 * Buffer size must be at least AFP_INFO_SIZE
1300 * Returns size of packed buffer
1301 **/
1302 static ssize_t afpinfo_pack(const AfpInfo *ai, char *buf)
1303 {
1304 memset(buf, 0, AFP_INFO_SIZE);
1305
1306 RSIVAL(buf, 0, ai->afpi_Signature);
1307 RSIVAL(buf, 4, ai->afpi_Version);
1308 RSIVAL(buf, 12, ai->afpi_BackupTime);
1309 memcpy(buf + 16, ai->afpi_FinderInfo, sizeof(ai->afpi_FinderInfo));
1310
1311 return AFP_INFO_SIZE;
1312 }
1313
1314 /**
1315 * Unpack a buffer into a AfpInfo structure
1316 *
1317 * Buffer size must be at least AFP_INFO_SIZE
1318 * Returns allocated AfpInfo struct
1319 **/
1320 static AfpInfo *afpinfo_unpack(TALLOC_CTX *ctx, const void *data)
1321 {
1322 AfpInfo *ai = talloc_zero(ctx, AfpInfo);
1323 if (ai == NULL) {
1324 return NULL;
1325 }
1326
1327 ai->afpi_Signature = RIVAL(data, 0);
1328 ai->afpi_Version = RIVAL(data, 4);
1329 ai->afpi_BackupTime = RIVAL(data, 12);
1330 memcpy(ai->afpi_FinderInfo, (const char *)data + 16,
1331 sizeof(ai->afpi_FinderInfo));
1332
1333 if (ai->afpi_Signature != AFP_Signature
1334 || ai->afpi_Version != AFP_Version) {
1335 DEBUG(1, ("Bad AfpInfo signature or version\n"));
1336 TALLOC_FREE(ai);
1337 }
1338
1339 return ai;
1340 }
1341
1342 /**
1343 * Fake an inode number from the md5 hash of the (xattr) name
1344 **/
1345 static SMB_INO_T fruit_inode(const SMB_STRUCT_STAT *sbuf, const char *sname)
1346 {
1347 MD5_CTX ctx;
1348 unsigned char hash[16];
1349 SMB_INO_T result;
1350 char *upper_sname;
1351
1352 upper_sname = talloc_strdup_upper(talloc_tos(), sname);
1353 SMB_ASSERT(upper_sname != NULL);
1354
1355 MD5Init(&ctx);
1356 MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_dev),
1357 sizeof(sbuf->st_ex_dev));
1358 MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_ino),
1359 sizeof(sbuf->st_ex_ino));
1360 MD5Update(&ctx, (unsigned char *)upper_sname,
1361 talloc_get_size(upper_sname)-1);
1362 MD5Final(hash, &ctx);
1363
1364 TALLOC_FREE(upper_sname);
1365
1366 /* Hopefully all the variation is in the lower 4 (or 8) bytes! */
1367 memcpy(&result, hash, sizeof(result));
1368
1369 DEBUG(10, ("fruit_inode \"%s\": ino=0x%llu\n",
1370 sname, (unsigned long long)result));
1371
1372 return result;
1373 }
1374
1375 /**
1376 * Ensure ad_fsp is still valid
1377 **/
1378 static bool fruit_fsp_recheck(struct adouble *ad, files_struct *fsp)
1379 {
1380 if (ad->ad_fsp == fsp) {
1381 return true;
1382 }
1383 ad->ad_fsp = fsp;
1384
1385 return true;
1386 }
1387
1388 static bool add_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
1389 struct stream_struct **streams,
1390 const char *name, off_t size,
1391 off_t alloc_size)
1392 {
1393 struct stream_struct *tmp;
1394
1395 tmp = talloc_realloc(mem_ctx, *streams, struct stream_struct,
1396 (*num_streams)+1);
1397 if (tmp == NULL) {
1398 return false;
1399 }
1400
1401 tmp[*num_streams].name = talloc_asprintf(tmp, "%s:$DATA", name);
1402 if (tmp[*num_streams].name == NULL) {
1403 return false;
1404 }
1405
1406 tmp[*num_streams].size = size;
1407 tmp[*num_streams].alloc_size = alloc_size;
1408
1409 *streams = tmp;
1410 *num_streams += 1;
1411 return true;
1412 }
1413
1414 static bool empty_finderinfo(const struct adouble *ad)
1415 {
1416
1417 char emptybuf[ADEDLEN_FINDERI] = {0};
1418 if (memcmp(emptybuf,
1419 ad_entry(ad, ADEID_FINDERI),
1420 ADEDLEN_FINDERI) == 0) {
1421 return true;
1422 }
1423 return false;
1424 }
1425
1426 /**
1427 * Update btime with btime from Netatalk
1428 **/
1429 static void update_btime(vfs_handle_struct *handle,
1430 struct smb_filename *smb_fname)
1431 {
1432 uint32_t t;
1433 struct timespec creation_time = {0};
1434 struct adouble *ad;
1435
1436 ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_META);
1437 if (ad == NULL) {
1438 return;
1439 }
1440 if (ad_getdate(ad, AD_DATE_UNIX | AD_DATE_CREATE, &t) != 0) {
1441 TALLOC_FREE(ad);
1442 return;
1443 }
1444 TALLOC_FREE(ad);
1445
1446 creation_time.tv_sec = convert_uint32_t_to_time_t(t);
1447 update_stat_ex_create_time(&smb_fname->st, creation_time);
1448
1449 return;
1450 }
1451
1452 /**
1453 * Map an access mask to a Netatalk single byte byte range lock
1454 **/
1455 static off_t access_to_netatalk_brl(enum apple_fork fork,
1456 uint32_t access_mask)
1457 {
1458 off_t offset;
1459
1460 switch (access_mask) {
1461 case FILE_READ_DATA:
1462 offset = AD_FILELOCK_OPEN_RD;
1463 break;
1464
1465 case FILE_WRITE_DATA:
1466 case FILE_APPEND_DATA:
1467 offset = AD_FILELOCK_OPEN_WR;
1468 break;
1469
1470 default:
1471 offset = AD_FILELOCK_OPEN_NONE;
1472 break;
1473 }
1474
1475 if (fork == APPLE_FORK_RSRC) {
1476 if (offset == AD_FILELOCK_OPEN_NONE) {
1477 offset = AD_FILELOCK_RSRC_OPEN_NONE;
1478 } else {
1479 offset += 2;
1480 }
1481 }
1482
1483 return offset;
1484 }
1485
1486 /**
1487 * Map a deny mode to a Netatalk brl
1488 **/
1489 static off_t denymode_to_netatalk_brl(enum apple_fork fork,
1490 uint32_t deny_mode)
1491 {
1492 off_t offset;
1493
1494 switch (deny_mode) {
1495 case DENY_READ:
1496 offset = AD_FILELOCK_DENY_RD;
1497 break;
1498
1499 case DENY_WRITE:
1500 offset = AD_FILELOCK_DENY_WR;
1501 break;
1502
1503 default:
1504 smb_panic("denymode_to_netatalk_brl: bad deny mode\n");
1505 }
1506
1507 if (fork == APPLE_FORK_RSRC) {
1508 offset += 2;
1509 }
1510
1511 return offset;
1512 }
1513
1514 /**
1515 * Call fcntl() with an exclusive F_GETLK request in order to
1516 * determine if there's an exisiting shared lock
1517 *
1518 * @return true if the requested lock was found or any error occured
1519 * false if the lock was not found
1520 **/
1521 static bool test_netatalk_lock(files_struct *fsp, off_t in_offset)
1522 {
1523 bool result;
1524 off_t offset = in_offset;
1525 off_t len = 1;
1526 int type = F_WRLCK;
1527 pid_t pid;
1528
1529 result = SMB_VFS_GETLOCK(fsp, &offset, &len, &type, &pid);
1530 if (result == false) {
1531 return true;
1532 }
1533
1534 if (type != F_UNLCK) {
1535 return true;
1536 }
1537
1538 return false;
1539 }
1540
1541 static NTSTATUS fruit_check_access(vfs_handle_struct *handle,
1542 files_struct *fsp,
1543 uint32_t access_mask,
1544 uint32_t deny_mode)
1545 {
1546 NTSTATUS status = NT_STATUS_OK;
1547 struct byte_range_lock *br_lck = NULL;
1548 bool open_for_reading, open_for_writing, deny_read, deny_write;
1549 off_t off;
1550
1551 /* FIXME: hardcoded data fork, add resource fork */
1552 enum apple_fork fork = APPLE_FORK_DATA;
1553
1554 DEBUG(10, ("fruit_check_access: %s, am: %s/%s, dm: %s/%s\n",
1555 fsp_str_dbg(fsp),
1556 access_mask & FILE_READ_DATA ? "READ" :"-",
1557 access_mask & FILE_WRITE_DATA ? "WRITE" : "-",
1558 deny_mode & DENY_READ ? "DENY_READ" : "-",
1559 deny_mode & DENY_WRITE ? "DENY_WRITE" : "-"));
1560
1561 /*
1562 * Check read access and deny read mode
1563 */
1564 if ((access_mask & FILE_READ_DATA) || (deny_mode & DENY_READ)) {
1565 /* Check access */
1566 open_for_reading = test_netatalk_lock(
1567 fsp, access_to_netatalk_brl(fork, FILE_READ_DATA));
1568
1569 deny_read = test_netatalk_lock(
1570 fsp, denymode_to_netatalk_brl(fork, DENY_READ));
1571
1572 DEBUG(10, ("read: %s, deny_write: %s\n",
1573 open_for_reading == true ? "yes" : "no",
1574 deny_read == true ? "yes" : "no"));
1575
1576 if (((access_mask & FILE_READ_DATA) && deny_read)
1577 || ((deny_mode & DENY_READ) && open_for_reading)) {
1578 return NT_STATUS_SHARING_VIOLATION;
1579 }
1580
1581 /* Set locks */
1582 if (access_mask & FILE_READ_DATA) {
1583 off = access_to_netatalk_brl(fork, FILE_READ_DATA);
1584 br_lck = do_lock(
1585 handle->conn->sconn->msg_ctx, fsp,
1586 fsp->op->global->open_persistent_id, 1, off,
1587 READ_LOCK, POSIX_LOCK, false,
1588 &status, NULL);
1589
1590 if (!NT_STATUS_IS_OK(status)) {
1591 return status;
1592 }
1593 TALLOC_FREE(br_lck);
1594 }
1595
1596 if (deny_mode & DENY_READ) {
1597 off = denymode_to_netatalk_brl(fork, DENY_READ);
1598 br_lck = do_lock(
1599 handle->conn->sconn->msg_ctx, fsp,
1600 fsp->op->global->open_persistent_id, 1, off,
1601 READ_LOCK, POSIX_LOCK, false,
1602 &status, NULL);
1603
1604 if (!NT_STATUS_IS_OK(status)) {
1605 return status;
1606 }
1607 TALLOC_FREE(br_lck);
1608 }
1609 }
1610
1611 /*
1612 * Check write access and deny write mode
1613 */
1614 if ((access_mask & FILE_WRITE_DATA) || (deny_mode & DENY_WRITE)) {
1615 /* Check access */
1616 open_for_writing = test_netatalk_lock(
1617 fsp, access_to_netatalk_brl(fork, FILE_WRITE_DATA));
1618
1619 deny_write = test_netatalk_lock(
1620 fsp, denymode_to_netatalk_brl(fork, DENY_WRITE));
1621
1622 DEBUG(10, ("write: %s, deny_write: %s\n",
1623 open_for_writing == true ? "yes" : "no",
1624 deny_write == true ? "yes" : "no"));
1625
1626 if (((access_mask & FILE_WRITE_DATA) && deny_write)
1627 || ((deny_mode & DENY_WRITE) && open_for_writing)) {
1628 return NT_STATUS_SHARING_VIOLATION;
1629 }
1630
1631 /* Set locks */
1632 if (access_mask & FILE_WRITE_DATA) {
1633 off = access_to_netatalk_brl(fork, FILE_WRITE_DATA);
1634 br_lck = do_lock(
1635 handle->conn->sconn->msg_ctx, fsp,
1636 fsp->op->global->open_persistent_id, 1, off,
1637 READ_LOCK, POSIX_LOCK, false,
1638 &status, NULL);
1639
1640 if (!NT_STATUS_IS_OK(status)) {
1641 return status;
1642 }
1643 TALLOC_FREE(br_lck);
1644
1645 }
1646 if (deny_mode & DENY_WRITE) {
1647 off = denymode_to_netatalk_brl(fork, DENY_WRITE);
1648 br_lck = do_lock(
1649 handle->conn->sconn->msg_ctx, fsp,
1650 fsp->op->global->open_persistent_id, 1, off,
1651 READ_LOCK, POSIX_LOCK, false,
1652 &status, NULL);
1653
1654 if (!NT_STATUS_IS_OK(status)) {
1655 return status;
1656 }
1657 TALLOC_FREE(br_lck);
1658 }
1659 }
1660
1661 TALLOC_FREE(br_lck);
1662
1663 return status;
1664 }
1665
1666 /****************************************************************************
1667 * VFS ops
1668 ****************************************************************************/
1669
1670 static int fruit_connect(vfs_handle_struct *handle,
1671 const char *service,
1672 const char *user)
1673 {
1674 int rc;
1675 char *list = NULL, *newlist = NULL;
1676 struct fruit_config_data *config;
1677
1678 DEBUG(10, ("fruit_connect\n"));
1679
1680 rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
1681 if (rc < 0) {
1682 return rc;
1683 }
1684
1685 list = lp_veto_files(talloc_tos(), SNUM(handle->conn));
1686
1687 if (list) {
1688 if (strstr(list, "/" ADOUBLE_NAME_PREFIX "*/") == NULL) {
1689 newlist = talloc_asprintf(
1690 list,
1691 "%s/" ADOUBLE_NAME_PREFIX "*/",
1692 list);
1693 lp_do_parameter(SNUM(handle->conn),
1694 "veto files",
1695 newlist);
1696 }
1697 } else {
1698 lp_do_parameter(SNUM(handle->conn),
1699 "veto files",
1700 "/" ADOUBLE_NAME_PREFIX "*/");
1701 }
1702
1703 TALLOC_FREE(list);
1704
1705 rc = init_fruit_config(handle);
1706 if (rc != 0) {
1707 return rc;
1708 }
1709
1710 SMB_VFS_HANDLE_GET_DATA(handle, config,
1711 struct fruit_config_data, return -1);
1712
1713 if (config->encoding == FRUIT_ENC_NATIVE) {
1714 lp_do_parameter(
1715 SNUM(handle->conn),
1716 "catia:mappings",
1717 "0x22:0xf020,0x2a:0xf021,0x3a:0xf022,0x3c:0xf023,"
1718 "0x3e:0xf024,0x3f:0xf025,0x5c:0xf026,0x7c:0xf027,"
1719 "0x0d:0xf00d");
1720 }
1721
1722 return rc;
1723 }
1724
1725 static int fruit_open_meta(vfs_handle_struct *handle,
1726 struct smb_filename *smb_fname,
1727 files_struct *fsp, int flags, mode_t mode)
1728 {
1729 int rc = 0;
1730 struct fruit_config_data *config = NULL;
1731 struct smb_filename *smb_fname_base = NULL;
1732 int baseflags;
1733 int hostfd = -1;
1734 struct adouble *ad = NULL;
1735
1736 DEBUG(10, ("fruit_open_meta for %s\n", smb_fname_str_dbg(smb_fname)));
1737
1738 SMB_VFS_HANDLE_GET_DATA(handle, config,
1739 struct fruit_config_data, return -1);
1740
1741 if (config->meta == FRUIT_META_STREAM) {
1742 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1743 }
1744
1745 /* Create an smb_filename with stream_name == NULL. */
1746 smb_fname_base = synthetic_smb_fname(talloc_tos(),
1747 smb_fname->base_name, NULL, NULL);
1748
1749 if (smb_fname_base == NULL) {
1750 errno = ENOMEM;
1751 rc = -1;
1752 goto exit;
1753 }
1754
1755 /*
1756 * We use baseflags to turn off nasty side-effects when opening the
1757 * underlying file.
1758 */
1759 baseflags = flags;
1760 baseflags &= ~O_TRUNC;
1761 baseflags &= ~O_EXCL;
1762 baseflags &= ~O_CREAT;
1763
1764 hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
1765 baseflags, mode);
1766
1767 /*
1768 * It is legit to open a stream on a directory, but the base
1769 * fd has to be read-only.
1770 */
1771 if ((hostfd == -1) && (errno == EISDIR)) {
1772 baseflags &= ~O_ACCMODE;
1773 baseflags |= O_RDONLY;
1774 hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
1775 baseflags, mode);
1776 }
1777
1778 TALLOC_FREE(smb_fname_base);
1779
1780 if (hostfd == -1) {
1781 rc = -1;
1782 goto exit;
1783 }
1784
1785 if (flags & (O_CREAT | O_TRUNC)) {
1786 /*
1787 * The attribute does not exist or needs to be truncated,
1788 * create an AppleDouble EA
1789 */
1790 ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1791 handle, ADOUBLE_META, fsp);
1792 if (ad == NULL) {
1793 rc = -1;
1794 goto exit;
1795 }
1796
1797 rc = ad_write(ad, smb_fname->base_name);
1798 if (rc != 0) {
1799 rc = -1;
1800 goto exit;
1801 }
1802 } else {
1803 ad = ad_alloc(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1804 handle, ADOUBLE_META, fsp);
1805 if (ad == NULL) {
1806 rc = -1;
1807 goto exit;
1808 }
1809 if (ad_read(ad, smb_fname->base_name) == -1) {
1810 rc = -1;
1811 goto exit;
1812 }
1813 }
1814
1815 exit:
1816 DEBUG(10, ("fruit_open meta rc=%d, fd=%d\n", rc, hostfd));
1817 if (rc != 0) {
1818 int saved_errno = errno;
1819 if (hostfd >= 0) {
1820 /*
1821 * BUGBUGBUG -- we would need to call
1822 * fd_close_posix here, but we don't have a
1823 * full fsp yet
1824 */
1825 fsp->fh->fd = hostfd;
1826 SMB_VFS_CLOSE(fsp);
1827 }
1828 hostfd = -1;
1829 errno = saved_errno;
1830 }
1831 return hostfd;
1832 }
1833
1834 static int fruit_open_rsrc(vfs_handle_struct *handle,
1835 struct smb_filename *smb_fname,
1836 files_struct *fsp, int flags, mode_t mode)
1837 {
1838 int rc = 0;
1839 struct fruit_config_data *config = NULL;
1840 struct adouble *ad = NULL;
1841 struct smb_filename *smb_fname_base = NULL;
1842 char *adpath = NULL;
1843 int hostfd = -1;
1844
1845 DEBUG(10, ("fruit_open_rsrc for %s\n", smb_fname_str_dbg(smb_fname)));
1846
1847 SMB_VFS_HANDLE_GET_DATA(handle, config,
1848 struct fruit_config_data, return -1);
1849
1850 switch (config->rsrc) {
1851 case FRUIT_RSRC_STREAM:
1852 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1853 case FRUIT_RSRC_XATTR:
1854 #ifdef HAVE_ATTROPEN
1855 hostfd = attropen(smb_fname->base_name,
1856 AFPRESOURCE_EA_NETATALK, flags, mode);
1857 if (hostfd == -1) {
1858 return -1;
1859 }
1860 ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1861 handle, ADOUBLE_RSRC, fsp);
1862 if (ad == NULL) {
1863 rc = -1;
1864 goto exit;
1865 }
1866 goto exit;
1867 #else
1868 errno = ENOTSUP;
1869 return -1;
1870 #endif
1871 default:
1872 break;
1873 }
1874
1875 if (!(flags & O_CREAT) && !VALID_STAT(smb_fname->st)) {
1876 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
1877 if (rc != 0) {
1878 rc = -1;
1879 goto exit;
1880 }
1881 }
1882
1883 if (VALID_STAT(smb_fname->st) && S_ISDIR(smb_fname->st.st_ex_mode)) {
1884 /* sorry, but directories don't habe a resource fork */
1885 rc = -1;
1886 goto exit;
1887 }
1888
1889 rc = adouble_path(talloc_tos(), smb_fname->base_name, &adpath);
1890 if (rc != 0) {
1891 goto exit;
1892 }
1893
1894 /* Create an smb_filename with stream_name == NULL. */
1895 smb_fname_base = synthetic_smb_fname(talloc_tos(),
1896 adpath, NULL, NULL);
1897 if (smb_fname_base == NULL) {
1898 errno = ENOMEM;
1899 rc = -1;
1900 goto exit;
1901 }
1902
1903 /* Sanitize flags */
1904 if (flags & O_WRONLY) {
1905 /* We always need read access for the metadata header too */
1906 flags &= ~O_WRONLY;
1907 flags |= O_RDWR;
1908 }
1909
1910 hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
1911 flags, mode);
1912 if (hostfd == -1) {
1913 rc = -1;
1914 goto exit;
1915 }
1916
1917 /* REVIEW: we need this in ad_write() */
1918 fsp->fh->fd = hostfd;
1919
1920 if (flags & (O_CREAT | O_TRUNC)) {
1921 ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1922 handle, ADOUBLE_RSRC, fsp);
1923 if (ad == NULL) {
1924 rc = -1;
1925 goto exit;
1926 }
1927 rc = ad_write(ad, smb_fname->base_name);
1928 if (rc != 0) {
1929 rc = -1;
1930 goto exit;
1931 }
1932 } else {
1933 ad = ad_alloc(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1934 handle, ADOUBLE_RSRC, fsp);
1935 if (ad == NULL) {
1936 rc = -1;
1937 goto exit;
1938 }
1939 if (ad_read(ad, smb_fname->base_name) == -1) {
1940 rc = -1;
1941 goto exit;
1942 }
1943 }
1944
1945 exit:
1946
1947 TALLOC_FREE(adpath);
1948 TALLOC_FREE(smb_fname_base);
1949
1950 DEBUG(10, ("fruit_open resource fork: rc=%d, fd=%d\n", rc, hostfd));
1951 if (rc != 0) {
1952 int saved_errno = errno;
1953 if (hostfd >= 0) {
1954 /*
1955 * BUGBUGBUG -- we would need to call
1956 * fd_close_posix here, but we don't have a
1957 * full fsp yet
1958 */
1959 fsp->fh->fd = hostfd;
1960 SMB_VFS_CLOSE(fsp);
1961 }
1962 hostfd = -1;
1963 errno = saved_errno;
1964 }
1965 return hostfd;
1966 }
1967
1968 static int fruit_open(vfs_handle_struct *handle,
1969 struct smb_filename *smb_fname,
1970 files_struct *fsp, int flags, mode_t mode)
1971 {
1972 DEBUG(10, ("fruit_open called for %s\n",
1973 smb_fname_str_dbg(smb_fname)));
1974
1975 if (!is_ntfs_stream_smb_fname(smb_fname)) {
1976 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1977 }
1978
1979 if (is_afpinfo_stream(smb_fname)) {
1980 return fruit_open_meta(handle, smb_fname, fsp, flags, mode);
1981 } else if (is_afpresource_stream(smb_fname)) {
1982 return fruit_open_rsrc(handle, smb_fname, fsp, flags, mode);
1983 }
1984
1985 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
1986 }
1987
1988 static int fruit_rename(struct vfs_handle_struct *handle,
1989 const struct smb_filename *smb_fname_src,
1990 const struct smb_filename *smb_fname_dst)
1991 {
1992 int rc = -1;
1993 char *src_adouble_path = NULL;
1994 char *dst_adouble_path = NULL;
1995 struct fruit_config_data *config = NULL;
1996
1997 rc = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
1998
1999 if (!VALID_STAT(smb_fname_src->st)
2000 || !S_ISREG(smb_fname_src->st.st_ex_mode)) {
2001 return rc;
2002 }
2003
2004 SMB_VFS_HANDLE_GET_DATA(handle, config,
2005 struct fruit_config_data, return -1);
2006
2007 if (config->rsrc == FRUIT_RSRC_XATTR) {
2008 return rc;
2009 }
2010
2011 rc = adouble_path(talloc_tos(), smb_fname_src->base_name,
2012 &src_adouble_path);
2013 if (rc != 0) {
2014 goto done;
2015 }
2016 rc = adouble_path(talloc_tos(), smb_fname_dst->base_name,
2017 &dst_adouble_path);
2018 if (rc != 0) {
2019 goto done;
2020 }
2021
2022 DEBUG(10, ("fruit_rename: %s -> %s\n",
2023 src_adouble_path, dst_adouble_path));
2024
2025 rc = rename(src_adouble_path, dst_adouble_path);
2026 if (errno == ENOENT) {
2027 rc = 0;
2028 }
2029
2030 TALLOC_FREE(src_adouble_path);
2031 TALLOC_FREE(dst_adouble_path);
2032
2033 done:
2034 return rc;
2035 }
2036
2037 static int fruit_unlink(vfs_handle_struct *handle,
2038 const struct smb_filename *smb_fname)
2039 {
2040 int rc = -1;
2041 struct fruit_config_data *config = NULL;
2042 char *adp = NULL;
2043
2044 if (!is_ntfs_stream_smb_fname(smb_fname)) {
2045 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
2046 }
2047
2048 SMB_VFS_HANDLE_GET_DATA(handle, config,
2049 struct fruit_config_data, return -1);
2050
2051 if (is_afpinfo_stream(smb_fname)) {
2052 if (config->meta == FRUIT_META_STREAM) {
2053 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
2054 } else {
2055 rc = SMB_VFS_REMOVEXATTR(handle->conn,
2056 smb_fname->base_name,
2057 AFPINFO_EA_NETATALK);
2058 }
2059 } else if (is_afpresource_stream(smb_fname)) {
2060 if (config->rsrc == FRUIT_RSRC_ADFILE) {
2061 rc = adouble_path(talloc_tos(),
2062 smb_fname->base_name, &adp);
2063 if (rc != 0) {
2064 return -1;
2065 }
2066 /* FIXME: direct unlink(), missing smb_fname */
2067 rc = unlink(adp);
2068 if ((rc == -1) && (errno == ENOENT)) {
2069 rc = 0;
2070 }
2071 } else {
2072 rc = SMB_VFS_REMOVEXATTR(handle->conn,
2073 smb_fname->base_name,
2074 AFPRESOURCE_EA_NETATALK);
2075 }
2076 } else {
2077 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
2078 }
2079
2080 TALLOC_FREE(adp);
2081 return rc;
2082 }
2083
2084 static int fruit_chmod(vfs_handle_struct *handle,
2085 const char *path,
2086 mode_t mode)
2087 {
2088 int rc = -1;
2089 char *adp = NULL;
2090 struct fruit_config_data *config = NULL;
2091 SMB_STRUCT_STAT sb;
2092
2093 rc = SMB_VFS_NEXT_CHMOD(handle, path, mode);
2094 if (rc != 0) {
2095 return rc;
2096 }
2097
2098 SMB_VFS_HANDLE_GET_DATA(handle, config,
2099 struct fruit_config_data, return -1);
2100
2101 if (config->rsrc == FRUIT_RSRC_XATTR) {
2102 return 0;
2103 }
2104
2105 /* FIXME: direct sys_lstat(), missing smb_fname */
2106 rc = sys_lstat(path, &sb, false);
2107 if (rc != 0 || !S_ISREG(sb.st_ex_mode)) {
2108 return rc;
2109 }
2110
2111 rc = adouble_path(talloc_tos(), path, &adp);
2112 if (rc != 0) {
2113 return -1;
2114 }
2115
2116 DEBUG(10, ("fruit_chmod: %s\n", adp));
2117
2118 rc = SMB_VFS_NEXT_CHMOD(handle, adp, mode);
2119 if (errno == ENOENT) {
2120 rc = 0;
2121 }
2122
2123 TALLOC_FREE(adp);
2124 return rc;
2125 }
2126
2127 static int fruit_chown(vfs_handle_struct *handle,
2128 const char *path,
2129 uid_t uid,
2130 gid_t gid)
2131 {
2132 int rc = -1;
2133 char *adp = NULL;
2134 struct fruit_config_data *config = NULL;
2135 SMB_STRUCT_STAT sb;
2136
2137 rc = SMB_VFS_NEXT_CHOWN(handle, path, uid, gid);
2138 if (rc != 0) {
2139 return rc;
2140 }
2141
2142 SMB_VFS_HANDLE_GET_DATA(handle, config,
2143 struct fruit_config_data, return -1);
2144
2145 if (config->rsrc == FRUIT_RSRC_XATTR) {
2146 return rc;
2147 }
2148
2149 /* FIXME: direct sys_lstat(), missing smb_fname */
2150 rc = sys_lstat(path, &sb, false);
2151 if (rc != 0 || !S_ISREG(sb.st_ex_mode)) {
2152 return rc;
2153 }
2154
2155 rc = adouble_path(talloc_tos(), path, &adp);
2156 if (rc != 0) {
2157 goto done;
2158 }
2159
2160 DEBUG(10, ("fruit_chown: %s\n", adp));
2161
2162 rc = SMB_VFS_NEXT_CHOWN(handle, adp, uid, gid);
2163 if (errno == ENOENT) {
2164 rc = 0;
2165 }
2166
2167 done:
2168 TALLOC_FREE(adp);
2169 return rc;
2170 }
2171
2172 static int fruit_rmdir(struct vfs_handle_struct *handle, const char *path)
2173 {
2174 DIR *dh = NULL;
2175 struct dirent *de;
2176 struct fruit_config_data *config;
2177
2178 SMB_VFS_HANDLE_GET_DATA(handle, config,
2179 struct fruit_config_data, return -1);
2180
2181 if (!handle->conn->cwd || !path || (config->rsrc == FRUIT_RSRC_XATTR)) {
2182 goto exit_rmdir;
2183 }
2184
2185 /*
2186 * Due to there is no way to change bDeleteVetoFiles variable
2187 * from this module, need to clean up ourselves
2188 */
2189 dh = opendir(path);
2190 if (dh == NULL) {
2191 goto exit_rmdir;
2192 }
2193
2194 while ((de = readdir(dh)) != NULL) {
2195 if ((strncmp(de->d_name,
2196 ADOUBLE_NAME_PREFIX,
2197 strlen(ADOUBLE_NAME_PREFIX))) == 0) {
2198 char *p = talloc_asprintf(talloc_tos(),
2199 "%s/%s",
2200 path, de->d_name);
2201 if (p == NULL) {
2202 goto exit_rmdir;
2203 }
2204 DEBUG(10, ("fruit_rmdir: delete %s\n", p));
2205 (void)unlink(p);
2206 TALLOC_FREE(p);
2207 }
2208 }
2209
2210 exit_rmdir:
2211 if (dh) {
2212 closedir(dh);
2213 }
2214 return SMB_VFS_NEXT_RMDIR(handle, path);
2215 }
2216
2217 static ssize_t fruit_pread(vfs_handle_struct *handle,
2218 files_struct *fsp, void *data,
2219 size_t n, off_t offset)
2220 {
2221 int rc = 0;
2222 struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
2223 handle, fsp);
2224 struct fruit_config_data *config = NULL;
2225 AfpInfo *ai = NULL;
2226 ssize_t len;
2227 char *name = NULL;
2228 char *tmp_base_name = NULL;
2229 NTSTATUS status;
2230
2231 DEBUG(10, ("fruit_pread: offset=%d, size=%d\n", (int)offset, (int)n));
2232
2233 if (!fsp->base_fsp) {
2234 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2235 }
2236
2237 SMB_VFS_HANDLE_GET_DATA(handle, config,
2238 struct fruit_config_data, return -1);
2239
2240 /* fsp_name is not converted with vfs_catia */
2241 tmp_base_name = fsp->base_fsp->fsp_name->base_name;
2242 status = SMB_VFS_TRANSLATE_NAME(handle->conn,
2243 fsp->base_fsp->fsp_name->base_name,
2244 vfs_translate_to_unix,
2245 talloc_tos(), &name);
2246 if (!NT_STATUS_IS_OK(status)) {
2247 errno = map_errno_from_nt_status(status);
2248 rc = -1;
2249 goto exit;
2250 }
2251 fsp->base_fsp->fsp_name->base_name = name;
2252
2253 if (ad == NULL) {
2254 len = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2255 if (len == -1) {
2256 rc = -1;
2257 goto exit;
2258 }
2259 goto exit;
2260 }
2261
2262 if (!fruit_fsp_recheck(ad, fsp)) {
2263 rc = -1;
2264 goto exit;
2265 }
2266
2267 if (ad->ad_type == ADOUBLE_META) {
2268 ai = afpinfo_new(talloc_tos());
2269 if (ai == NULL) {
2270 rc = -1;
2271 goto exit;
2272 }
2273
2274 len = ad_read(ad, fsp->base_fsp->fsp_name->base_name);
2275 if (len == -1) {
2276 rc = -1;
2277 goto exit;
2278 }
2279
2280 memcpy(&ai->afpi_FinderInfo[0],
2281 ad_entry(ad, ADEID_FINDERI),
2282 ADEDLEN_FINDERI);
2283 len = afpinfo_pack(ai, data);
2284 if (len != AFP_INFO_SIZE) {
2285 rc = -1;
2286 goto exit;
2287 }
2288 } else {
2289 len = SMB_VFS_NEXT_PREAD(
2290 handle, fsp, data, n,
2291 offset + ad_getentryoff(ad, ADEID_RFORK));
2292 if (len == -1) {
2293 rc = -1;
2294 goto exit;
2295 }
2296 }
2297 exit:
2298 fsp->base_fsp->fsp_name->base_name = tmp_base_name;
2299 TALLOC_FREE(name);
2300 TALLOC_FREE(ai);
2301 if (rc != 0) {
2302 len = -1;
2303 }
2304 DEBUG(10, ("fruit_pread: rc=%d, len=%zd\n", rc, len));
2305 return len;
2306 }
2307
2308 static ssize_t fruit_pwrite(vfs_handle_struct *handle,
2309 files_struct *fsp, const void *data,
2310 size_t n, off_t offset)
2311 {
2312 int rc = 0;
2313 struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
2314 handle, fsp);
2315 struct fruit_config_data *config = NULL;
2316 AfpInfo *ai = NULL;
2317 ssize_t len;
2318 char *name = NULL;
2319 char *tmp_base_name = NULL;
2320 NTSTATUS status;
2321
2322 DEBUG(10, ("fruit_pwrite: offset=%d, size=%d\n", (int)offset, (int)n));
2323
2324 if (!fsp->base_fsp) {
2325 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2326 }
2327
2328 SMB_VFS_HANDLE_GET_DATA(handle, config,
2329 struct fruit_config_data, return -1);
2330
2331 tmp_base_name = fsp->base_fsp->fsp_name->base_name;
2332 status = SMB_VFS_TRANSLATE_NAME(handle->conn,
2333 fsp->base_fsp->fsp_name->base_name,
2334 vfs_translate_to_unix,
2335 talloc_tos(), &name);
2336 if (!NT_STATUS_IS_OK(status)) {
2337 errno = map_errno_from_nt_status(status);
2338 rc = -1;
2339 goto exit;
2340 }
2341 fsp->base_fsp->fsp_name->base_name = name;
2342
2343 if (ad == NULL) {
2344 len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2345 if (len != n) {
2346 rc = -1;
2347 goto exit;
2348 }
2349 goto exit;
2350 }
2351
2352 if (!fruit_fsp_recheck(ad, fsp)) {
2353 rc = -1;
2354 goto exit;
2355 }
2356
2357 if (ad->ad_type == ADOUBLE_META) {
2358 if (n != AFP_INFO_SIZE || offset != 0) {
2359 DEBUG(1, ("unexpected offset=%jd or size=%jd\n",
2360 (intmax_t)offset, (intmax_t)n));
2361 rc = -1;
2362 goto exit;
2363 }
2364 ai = afpinfo_unpack(talloc_tos(), data);
2365 if (ai == NULL) {
2366 rc = -1;
2367 goto exit;
2368 }
2369 memcpy(ad_entry(ad, ADEID_FINDERI),
2370 &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
2371 rc = ad_write(ad, name);
2372 } else {
2373 len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n,
2374 offset + ad_getentryoff(ad, ADEID_RFORK));
2375 if (len != n) {
2376 rc = -1;
2377 goto exit;
2378 }
2379
2380 if (config->rsrc == FRUIT_RSRC_ADFILE) {
2381 rc = ad_read(ad, name);
2382 if (rc == -1) {
2383 goto exit;
2384 }
2385 rc = 0;
2386
2387 if ((len + offset) > ad_getentrylen(ad, ADEID_RFORK)) {
2388 ad_setentrylen(ad, ADEID_RFORK, len + offset);
2389 rc = ad_write(ad, name);
2390 }
2391 }
2392 }
2393
2394 exit:
2395 fsp->base_fsp->fsp_name->base_name = tmp_base_name;
2396 TALLOC_FREE(name);
2397 TALLOC_FREE(ai);
2398 if (rc != 0) {
2399 return -1;
2400 }
2401 return n;
2402 }
2403
2404 /**
2405 * Helper to stat/lstat the base file of an smb_fname.
2406 */
2407 static int fruit_stat_base(vfs_handle_struct *handle,
2408 struct smb_filename *smb_fname,
2409 bool follow_links)
2410 {
2411 char *tmp_stream_name;
2412 int rc;
2413
2414 tmp_stream_name = smb_fname->stream_name;
2415 smb_fname->stream_name = NULL;
2416 if (follow_links) {
2417 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
2418 } else {
2419 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
2420 }
2421 smb_fname->stream_name = tmp_stream_name;
2422 return rc;
2423 }
2424
2425 static int fruit_stat_meta(vfs_handle_struct *handle,
2426 struct smb_filename *smb_fname,
2427 bool follow_links)
2428 {
2429 /* Populate the stat struct with info from the base file. */
2430 if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
2431 return -1;
2432 }
2433 smb_fname->st.st_ex_size = AFP_INFO_SIZE;
2434 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
2435 smb_fname->stream_name);
2436 return 0;
2437 }
2438
2439 static int fruit_stat_rsrc(vfs_handle_struct *handle,
2440 struct smb_filename *smb_fname,
2441 bool follow_links)
2442
2443 {
2444 struct adouble *ad = NULL;
2445
2446 DEBUG(10, ("fruit_stat_rsrc called for %s\n",
2447 smb_fname_str_dbg(smb_fname)));
2448
2449 ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_RSRC);
2450 if (ad == NULL) {
2451 errno = ENOENT;
2452 return -1;
2453 }
2454
2455 /* Populate the stat struct with info from the base file. */
2456 if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
2457 TALLOC_FREE(ad);
2458 return -1;
2459 }
2460
2461 smb_fname->st.st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
2462 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
2463 smb_fname->stream_name);
2464 TALLOC_FREE(ad);
2465 return 0;
2466 }
2467
2468 static int fruit_stat(vfs_handle_struct *handle,
2469 struct smb_filename *smb_fname)
2470 {
2471 int rc = -1;
2472
2473 DEBUG(10, ("fruit_stat called for %s\n",
2474 smb_fname_str_dbg(smb_fname)));
2475
2476 if (!is_ntfs_stream_smb_fname(smb_fname)
2477 || is_ntfs_default_stream_smb_fname(smb_fname)) {
2478 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
2479 if (rc == 0) {
2480 update_btime(handle, smb_fname);
2481 }
2482 return rc;
2483 }
2484
2485 /*
2486 * Note if lp_posix_paths() is true, we can never
2487 * get here as is_ntfs_stream_smb_fname() is
2488 * always false. So we never need worry about
2489 * not following links here.
2490 */
2491
2492 if (is_afpinfo_stream(smb_fname)) {
2493 rc = fruit_stat_meta(handle, smb_fname, true);
2494 } else if (is_afpresource_stream(smb_fname)) {
2495 rc = fruit_stat_rsrc(handle, smb_fname, true);
2496 } else {
2497 return SMB_VFS_NEXT_STAT(handle, smb_fname);
2498 }
2499
2500 if (rc == 0) {
2501 update_btime(handle, smb_fname);
2502 smb_fname->st.st_ex_mode &= ~S_IFMT;
2503 smb_fname->st.st_ex_mode |= S_IFREG;
2504 smb_fname->st.st_ex_blocks =
2505 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
2506 }
2507 return rc;
2508 }
2509
2510 static int fruit_lstat(vfs_handle_struct *handle,
2511 struct smb_filename *smb_fname)
2512 {
2513 int rc = -1;
2514
2515 DEBUG(10, ("fruit_lstat called for %s\n",
2516 smb_fname_str_dbg(smb_fname)));
2517
2518 if (!is_ntfs_stream_smb_fname(smb_fname)
2519 || is_ntfs_default_stream_smb_fname(smb_fname)) {
2520 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
2521 if (rc == 0) {
2522 update_btime(handle, smb_fname);
2523 }
2524 return rc;
2525 }
2526
2527 if (is_afpinfo_stream(smb_fname)) {
2528 rc = fruit_stat_meta(handle, smb_fname, false);
2529 } else if (is_afpresource_stream(smb_fname)) {
2530 rc = fruit_stat_rsrc(handle, smb_fname, false);
2531 } else {
2532 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
2533 }
2534
2535 if (rc == 0) {
2536 update_btime(handle, smb_fname);
2537 smb_fname->st.st_ex_mode &= ~S_IFMT;
2538 smb_fname->st.st_ex_mode |= S_IFREG;
2539 smb_fname->st.st_ex_blocks =
2540 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
2541 }
2542 return rc;
2543 }
2544
2545 static int fruit_fstat_meta(vfs_handle_struct *handle,
2546 files_struct *fsp,
2547 SMB_STRUCT_STAT *sbuf)
2548 {
2549 DEBUG(10, ("fruit_fstat_meta called for %s\n",
2550 smb_fname_str_dbg(fsp->base_fsp->fsp_name)));
2551
2552 /* Populate the stat struct with info from the base file. */
2553 if (fruit_stat_base(handle, fsp->base_fsp->fsp_name, false) == -1) {
2554 return -1;
2555 }
2556 *sbuf = fsp->base_fsp->fsp_name->st;
2557 sbuf->st_ex_size = AFP_INFO_SIZE;
2558 sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
2559
2560 return 0;
2561 }
2562
2563 static int fruit_fstat_rsrc(vfs_handle_struct *handle, files_struct *fsp,
2564 SMB_STRUCT_STAT *sbuf)
2565 {
2566 struct fruit_config_data *config;
2567 struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
2568 handle, fsp);
2569
2570 DEBUG(10, ("fruit_fstat_rsrc called for %s\n",
2571 smb_fname_str_dbg(fsp->base_fsp->fsp_name)));
2572
2573 SMB_VFS_HANDLE_GET_DATA(handle, config,
2574 struct fruit_config_data, return -1);
2575
2576 if (config->rsrc == FRUIT_RSRC_STREAM) {
2577 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
2578 }
2579
2580 /* Populate the stat struct with info from the base file. */
2581 if (fruit_stat_base(handle, fsp->base_fsp->fsp_name, false) == -1) {
2582 return -1;
2583 }
2584 *sbuf = fsp->base_fsp->fsp_name->st;
2585 sbuf->st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
2586 sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
2587
2588 DEBUG(10, ("fruit_fstat_rsrc %s, size: %zd\n",
2589 smb_fname_str_dbg(fsp->fsp_name),
2590 (ssize_t)sbuf->st_ex_size));
2591
2592 return 0;
2593 }
2594
2595 static int fruit_fstat(vfs_handle_struct *handle, files_struct *fsp,
2596 SMB_STRUCT_STAT *sbuf)
2597 {
2598 int rc;
2599 char *name = NULL;
2600 char *tmp_base_name = NULL;
2601 NTSTATUS status;
2602 struct adouble *ad = (struct adouble *)
2603 VFS_FETCH_FSP_EXTENSION(handle, fsp);
2604
2605 DEBUG(10, ("fruit_fstat called for %s\n",
2606 smb_fname_str_dbg(fsp->fsp_name)));
2607
2608 if (fsp->base_fsp) {
2609 tmp_base_name = fsp->fsp_name->base_name;
2610 /* fsp_name is not converted with vfs_catia */
2611 status = SMB_VFS_TRANSLATE_NAME(
2612 handle->conn,
2613 fsp->base_fsp->fsp_name->base_name,
2614 vfs_translate_to_unix,
2615 talloc_tos(), &name);
2616
2617 if (!NT_STATUS_IS_OK(status)) {
2618 errno = map_errno_from_nt_status(status);
2619 rc = -1;
2620 goto exit;
2621 }
2622 fsp->base_fsp->fsp_name->base_name = name;
2623 }
2624
2625 if (ad == NULL || fsp->base_fsp == NULL) {
2626 rc = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
2627 goto exit;
2628 }
2629
2630 if (!fruit_fsp_recheck(ad, fsp)) {
2631 rc = -1;
2632 goto exit;
2633 }
2634
2635 switch (ad->ad_type) {
2636 case ADOUBLE_META:
2637 rc = fruit_fstat_meta(handle, fsp, sbuf);
2638 break;
2639 case ADOUBLE_RSRC:
2640 rc = fruit_fstat_rsrc(handle, fsp, sbuf);
2641 break;
2642 default:
2643 DEBUG(10, ("fruit_fstat %s: bad type\n",
2644 smb_fname_str_dbg(fsp->fsp_name)));
2645 rc = -1;
2646 goto exit;
2647 }
2648
2649 if (rc == 0) {
2650 sbuf->st_ex_mode &= ~S_IFMT;
2651 sbuf->st_ex_mode |= S_IFREG;
2652 sbuf->st_ex_blocks = sbuf->st_ex_size / STAT_ST_BLOCKSIZE + 1;
2653 }
2654
2655 exit:
2656 DEBUG(10, ("fruit_fstat %s, size: %zd\n",
2657 smb_fname_str_dbg(fsp->fsp_name),
2658 (ssize_t)sbuf->st_ex_size));
2659 if (tmp_base_name) {
2660 fsp->base_fsp->fsp_name->base_name = tmp_base_name;
2661 }
2662 TALLOC_FREE(name);
2663 return rc;
2664 }
2665
2666 static NTSTATUS fruit_streaminfo(vfs_handle_struct *handle,
2667 struct files_struct *fsp,
2668 const char *fname,
2669 TALLOC_CTX *mem_ctx,
2670 unsigned int *pnum_streams,
2671 struct stream_struct **pstreams)
2672 {
2673 struct fruit_config_data *config = NULL;
2674 struct smb_filename *smb_fname = NULL;
2675 struct adouble *ad = NULL;
2676
2677 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
2678 return NT_STATUS_UNSUCCESSFUL);
2679 DEBUG(10, ("fruit_streaminfo called for %s\n", fname));
2680
2681 smb_fname = synthetic_smb_fname(talloc_tos(), fname, NULL, NULL);
2682 if (smb_fname == NULL) {
2683 return NT_STATUS_NO_MEMORY;
2684 }
2685
2686 if (config->meta == FRUIT_META_NETATALK) {
2687 ad = ad_get(talloc_tos(), handle,
2688 smb_fname->base_name, ADOUBLE_META);
2689 if (ad && !empty_finderinfo(ad)) {
2690 if (!add_fruit_stream(
2691 mem_ctx, pnum_streams, pstreams,
2692 AFPINFO_STREAM_NAME, AFP_INFO_SIZE,
2693 smb_roundup(handle->conn,
2694 AFP_INFO_SIZE))) {
2695 TALLOC_FREE(ad);
2696 TALLOC_FREE(smb_fname);
2697 return NT_STATUS_NO_MEMORY;
2698 }
2699 }
2700 TALLOC_FREE(ad);
2701 }
2702
2703 if (config->rsrc != FRUIT_RSRC_STREAM) {
2704 ad = ad_get(talloc_tos(), handle, smb_fname->base_name,
2705 ADOUBLE_RSRC);
2706 if (ad) {
2707 if (!add_fruit_stream(
2708 mem_ctx, pnum_streams, pstreams,
2709 AFPRESOURCE_STREAM_NAME,
2710 ad_getentrylen(ad, ADEID_RFORK),
2711 smb_roundup(handle->conn,
2712 ad_getentrylen(
2713 ad, ADEID_RFORK)))) {
2714 TALLOC_FREE(ad);
2715 TALLOC_FREE(smb_fname);
2716 return NT_STATUS_NO_MEMORY;
2717 }
2718 }
2719 TALLOC_FREE(ad);
2720 }
2721
2722 TALLOC_FREE(smb_fname);
2723
2724 return SMB_VFS_NEXT_STREAMINFO(handle, fsp, fname, mem_ctx,
2725 pnum_streams, pstreams);
2726 }
2727
2728 static int fruit_ntimes(vfs_handle_struct *handle,
2729 const struct smb_filename *smb_fname,
2730 struct smb_file_time *ft)
2731 {
2732 int rc = 0;
2733 struct adouble *ad = NULL;
2734
2735 if (null_timespec(ft->create_time)) {
2736 goto exit;
2737 }
2738
2739 DEBUG(10,("set btime for %s to %s\n", smb_fname_str_dbg(smb_fname),
2740 time_to_asc(convert_timespec_to_time_t(ft->create_time))));
2741
2742 ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_META);
2743 if (ad == NULL) {
2744 goto exit;
2745 }
2746
2747 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX,
2748 convert_time_t_to_uint32_t(ft->create_time.tv_sec));
2749
2750 rc = ad_write(ad, smb_fname->base_name);
2751
2752 exit:
2753
2754 TALLOC_FREE(ad);
2755 if (rc != 0) {
2756 DEBUG(1, ("fruit_ntimes: %s\n", smb_fname_str_dbg(smb_fname)));
2757 return -1;
2758 }
2759 return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
2760 }
2761
2762 static int fruit_fallocate(struct vfs_handle_struct *handle,
2763 struct files_struct *fsp,
2764 enum vfs_fallocate_mode mode,
2765 off_t offset,
2766 off_t len)
2767 {
2768 struct adouble *ad =
2769 (struct adouble *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
2770
2771 if (ad == NULL) {
2772 return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
2773 }
2774
2775 if (!fruit_fsp_recheck(ad, fsp)) {
2776 return errno;
2777 }
2778
2779 /* Let the pwrite code path handle it. */
2780 return ENOSYS;
2781 }
2782
2783 static int fruit_ftruncate(struct vfs_handle_struct *handle,
2784 struct files_struct *fsp,
2785 off_t offset)
2786 {
2787 int rc = 0;
2788 struct adouble *ad =
2789 (struct adouble *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
2790 struct fruit_config_data *config;
2791
2792 DEBUG(10, ("streams_xattr_ftruncate called for file %s offset %.0f\n",
2793 fsp_str_dbg(fsp), (double)offset));
2794
2795 if (ad == NULL) {
2796 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
2797 }
2798
2799 if (!fruit_fsp_recheck(ad, fsp)) {
2800 return -1;
2801 }
2802
2803 SMB_VFS_HANDLE_GET_DATA(handle, config,
2804 struct fruit_config_data, return -1);
2805
2806 switch (ad->ad_type) {
2807 case ADOUBLE_META:
2808 /*
2809 * As this request hasn't been seen in the wild,
2810 * the only sensible use I can imagine is the client
2811 * truncating the stream to 0 bytes size.
2812 * We simply remove the metadata on such a request.
2813 */
2814 if (offset == 0) {
2815 rc = SMB_VFS_FREMOVEXATTR(fsp,
2816 AFPRESOURCE_EA_NETATALK);
2817 }
2818 break;
2819 case ADOUBLE_RSRC:
2820 if (config->rsrc == FRUIT_RSRC_XATTR && offset == 0) {
2821 rc = SMB_VFS_FREMOVEXATTR(fsp,
2822 AFPRESOURCE_EA_NETATALK);
2823 } else {
2824 rc = SMB_VFS_NEXT_FTRUNCATE(
2825 handle, fsp,
2826 offset + ad_getentryoff(ad, ADEID_RFORK));
2827 if (rc != 0) {
2828 return -1;
2829 }
2830 ad_setentrylen(ad, ADEID_RFORK, offset);
2831 rc = ad_write(ad, NULL);
2832 if (rc != 0) {
2833 return -1;
2834 }
2835 }
2836 break;
2837 default:
2838 return -1;
2839 }
2840
2841 return rc;
2842 }
2843
2844 static NTSTATUS fruit_create_file(vfs_handle_struct *handle,
2845 struct smb_request *req,
2846 uint16_t root_dir_fid,
2847 struct smb_filename *smb_fname,
2848 uint32_t access_mask,
2849 uint32_t share_access,
2850 uint32_t create_disposition,
2851 uint32_t create_options,
2852 uint32_t file_attributes,
2853 uint32_t oplock_request,
2854 struct smb2_lease *lease,
2855 uint64_t allocation_size,
2856 uint32_t private_flags,
2857 struct security_descriptor *sd,
2858 struct ea_list *ea_list,
2859 files_struct **result,
2860 int *pinfo)
2861 {
2862 NTSTATUS status;
2863 struct fruit_config_data *config = NULL;
2864
2865 status = SMB_VFS_NEXT_CREATE_FILE(
2866 handle, req, root_dir_fid, smb_fname,
2867 access_mask, share_access,
2868 create_disposition, create_options,
2869 file_attributes, oplock_request,
2870 lease,
2871 allocation_size, private_flags,
2872 sd, ea_list, result,
2873 pinfo);
2874
2875 if (!NT_STATUS_IS_OK(status)) {
2876 return status;
2877 }
2878
2879 if (is_ntfs_stream_smb_fname(smb_fname)
2880 || (*result == NULL)
2881 || ((*result)->is_directory)) {
2882 return status;
2883 }
2884
2885 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
2886 return NT_STATUS_UNSUCCESSFUL);
2887
2888 if (config->locking == FRUIT_LOCKING_NETATALK) {
2889 status = fruit_check_access(
2890 handle, *result,
2891 access_mask,
2892 map_share_mode_to_deny_mode(share_access, 0));
2893 if (!NT_STATUS_IS_OK(status)) {
2894 goto fail;
2895 }
2896 }
2897
2898 return status;
2899
2900 fail:
2901 DEBUG(1, ("fruit_create_file: %s\n", nt_errstr(status)));
2902
2903 if (*result) {
2904 close_file(req, *result, ERROR_CLOSE);
2905 *result = NULL;
2906 }
2907
2908 return status;
2909 }
2910
2911 static struct vfs_fn_pointers vfs_fruit_fns = {
2912 .connect_fn = fruit_connect,
2913
2914 /* File operations */
2915 .chmod_fn = fruit_chmod,
2916 .chown_fn = fruit_chown,
2917 .unlink_fn = fruit_unlink,
2918 .rename_fn = fruit_rename,
2919 .rmdir_fn = fruit_rmdir,
2920 .open_fn = fruit_open,
2921 .pread_fn = fruit_pread,
2922 .pwrite_fn = fruit_pwrite,
2923 .stat_fn = fruit_stat,
2924 .lstat_fn = fruit_lstat,
2925 .fstat_fn = fruit_fstat,
2926 .streaminfo_fn = fruit_streaminfo,
2927 .ntimes_fn = fruit_ntimes,
2928 .unlink_fn = fruit_unlink,
2929 .ftruncate_fn = fruit_ftruncate,
2930 .fallocate_fn = fruit_fallocate,
2931 .create_file_fn = fruit_create_file,
2932 };
2933
2934 NTSTATUS vfs_fruit_init(void);
2935 NTSTATUS vfs_fruit_init(void)
2936 {
2937 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fruit",
2938 &vfs_fruit_fns);
2939 if (!NT_STATUS_IS_OK(ret)) {
2940 return ret;
2941 }
2942
2943 vfs_fruit_debug_level = debug_add_class("fruit");
2944 if (vfs_fruit_debug_level == -1) {
2945 vfs_fruit_debug_level = DBGC_VFS;
2946 DEBUG(0, ("%s: Couldn't register custom debugging class!\n",
2947 "vfs_fruit_init"));
2948 } else {
2949 DEBUG(10, ("%s: Debug class number of '%s': %d\n",
2950 "vfs_fruit_init","fruit",vfs_fruit_debug_level));
2951 }
2952
2953 return ret;
2954 }
Samba GIT mirror