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vfs_fruit: split and simplify fruit_ftruncate
[Samba.git] / source3 / modules / vfs_fruit.c
blob342af76d3db3f21823d06faaca3203c395c646bb
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 #include "../libcli/smb/smb2_create_ctx.h"
32 #include "lib/sys_rw.h"
33 #include "lib/util/tevent_ntstatus.h"
34
35 /*
36 * Enhanced OS X and Netatalk compatibility
37 * ========================================
38 *
39 * This modules takes advantage of vfs_streams_xattr and
40 * vfs_catia. VFS modules vfs_fruit and vfs_streams_xattr must be
41 * loaded in the correct order:
42 *
43 * vfs modules = catia fruit streams_xattr
44 *
45 * The module intercepts the OS X special streams "AFP_AfpInfo" and
46 * "AFP_Resource" and handles them in a special way. All other named
47 * streams are deferred to vfs_streams_xattr.
48 *
49 * The OS X client maps all NTFS illegal characters to the Unicode
50 * private range. This module optionally stores the charcters using
51 * their native ASCII encoding using vfs_catia. If you're not enabling
52 * this feature, you can skip catia from vfs modules.
53 *
54 * Finally, open modes are optionally checked against Netatalk AFP
55 * share modes.
56 *
57 * The "AFP_AfpInfo" named stream is a binary blob containing OS X
58 * extended metadata for files and directories. This module optionally
59 * reads and stores this metadata in a way compatible with Netatalk 3
60 * which stores the metadata in an EA "org.netatalk.metadata". Cf
61 * source3/include/MacExtensions.h for a description of the binary
62 * blobs content.
63 *
64 * The "AFP_Resource" named stream may be arbitrarily large, thus it
65 * can't be stored in an xattr on most filesystem. ZFS on Solaris is
66 * the only available filesystem where xattrs can be of any size and
67 * the OS supports using the file APIs for xattrs.
68 *
69 * The AFP_Resource stream is stored in an AppleDouble file prepending
70 * "._" to the filename. On Solaris with ZFS the stream is optionally
71 * stored in an EA "org.netatalk.ressource".
72 *
73 *
74 * Extended Attributes
75 * ===================
76 *
77 * The OS X SMB client sends xattrs as ADS too. For xattr interop with
78 * other protocols you may want to adjust the xattr names the VFS
79 * module vfs_streams_xattr uses for storing ADS's. This defaults to
80 * user.DosStream.ADS_NAME:$DATA and can be changed by specifying
81 * these module parameters:
82 *
83 * streams_xattr:prefix = user.
84 * streams_xattr:store_stream_type = false
85 *
86 *
87 * TODO
88 * ====
89 *
90 * - log diagnostic if any needed VFS module is not loaded
91 * (eg with lp_vfs_objects())
92 * - add tests
93 */
94
95 static int vfs_fruit_debug_level = DBGC_VFS;
96
97 #undef DBGC_CLASS
98 #define DBGC_CLASS vfs_fruit_debug_level
99
100 #define FRUIT_PARAM_TYPE_NAME "fruit"
101 #define ADOUBLE_NAME_PREFIX "._"
102
103 /*
104 * REVIEW:
105 * This is hokey, but what else can we do?
106 */
107 #if defined(HAVE_ATTROPEN) || defined(FREEBSD)
108 #define AFPINFO_EA_NETATALK "org.netatalk.Metadata"
109 #define AFPRESOURCE_EA_NETATALK "org.netatalk.ResourceFork"
110 #else
111 #define AFPINFO_EA_NETATALK "user.org.netatalk.Metadata"
112 #define AFPRESOURCE_EA_NETATALK "user.org.netatalk.ResourceFork"
113 #endif
114
115 enum apple_fork {APPLE_FORK_DATA, APPLE_FORK_RSRC};
116
117 enum fruit_rsrc {FRUIT_RSRC_STREAM, FRUIT_RSRC_ADFILE, FRUIT_RSRC_XATTR};
118 enum fruit_meta {FRUIT_META_STREAM, FRUIT_META_NETATALK};
119 enum fruit_locking {FRUIT_LOCKING_NETATALK, FRUIT_LOCKING_NONE};
120 enum fruit_encoding {FRUIT_ENC_NATIVE, FRUIT_ENC_PRIVATE};
121
122 struct fruit_config_data {
123 enum fruit_rsrc rsrc;
124 enum fruit_meta meta;
125 enum fruit_locking locking;
126 enum fruit_encoding encoding;
127 bool use_aapl;
128 bool use_copyfile;
129 bool readdir_attr_enabled;
130 bool unix_info_enabled;
131 bool copyfile_enabled;
132 bool veto_appledouble;
133
134 /*
135 * Additional options, all enabled by default,
136 * possibly useful for analyzing performance. The associated
137 * operations with each of them may be expensive, so having
138 * the chance to disable them individually gives a chance
139 * tweaking the setup for the particular usecase.
140 */
141 bool readdir_attr_rsize;
142 bool readdir_attr_finder_info;
143 bool readdir_attr_max_access;
144 };
145
146 static const struct enum_list fruit_rsrc[] = {
147 {FRUIT_RSRC_STREAM, "stream"}, /* pass on to vfs_streams_xattr */
148 {FRUIT_RSRC_ADFILE, "file"}, /* ._ AppleDouble file */
149 {FRUIT_RSRC_XATTR, "xattr"}, /* Netatalk compatible xattr (ZFS only) */
150 { -1, NULL}
151 };
152
153 static const struct enum_list fruit_meta[] = {
154 {FRUIT_META_STREAM, "stream"}, /* pass on to vfs_streams_xattr */
155 {FRUIT_META_NETATALK, "netatalk"}, /* Netatalk compatible xattr */
156 { -1, NULL}
157 };
158
159 static const struct enum_list fruit_locking[] = {
160 {FRUIT_LOCKING_NETATALK, "netatalk"}, /* synchronize locks with Netatalk */
161 {FRUIT_LOCKING_NONE, "none"},
162 { -1, NULL}
163 };
164
165 static const struct enum_list fruit_encoding[] = {
166 {FRUIT_ENC_NATIVE, "native"}, /* map unicode private chars to ASCII */
167 {FRUIT_ENC_PRIVATE, "private"}, /* keep unicode private chars */
168 { -1, NULL}
169 };
170
171 /*****************************************************************************
172 * Defines, functions and data structures that deal with AppleDouble
173 *****************************************************************************/
174
175 /*
176 * There are two AppleDouble blobs we deal with:
177 *
178 * - ADOUBLE_META - AppleDouble blob used by Netatalk for storing
179 * metadata in an xattr
180 *
181 * - ADOUBLE_RSRC - AppleDouble blob used by OS X and Netatalk in
182 * ._ files
183 */
184 typedef enum {ADOUBLE_META, ADOUBLE_RSRC} adouble_type_t;
185
186 /* Version info */
187 #define AD_VERSION2 0x00020000
188 #define AD_VERSION AD_VERSION2
189
190 /*
191 * AppleDouble entry IDs.
192 */
193 #define ADEID_DFORK 1
194 #define ADEID_RFORK 2
195 #define ADEID_NAME 3
196 #define ADEID_COMMENT 4
197 #define ADEID_ICONBW 5
198 #define ADEID_ICONCOL 6
199 #define ADEID_FILEI 7
200 #define ADEID_FILEDATESI 8
201 #define ADEID_FINDERI 9
202 #define ADEID_MACFILEI 10
203 #define ADEID_PRODOSFILEI 11
204 #define ADEID_MSDOSFILEI 12
205 #define ADEID_SHORTNAME 13
206 #define ADEID_AFPFILEI 14
207 #define ADEID_DID 15
208
209 /* Private Netatalk entries */
210 #define ADEID_PRIVDEV 16
211 #define ADEID_PRIVINO 17
212 #define ADEID_PRIVSYN 18
213 #define ADEID_PRIVID 19
214 #define ADEID_MAX (ADEID_PRIVID + 1)
215
216 /*
217 * These are the real ids for the private entries,
218 * as stored in the adouble file
219 */
220 #define AD_DEV 0x80444556
221 #define AD_INO 0x80494E4F
222 #define AD_SYN 0x8053594E
223 #define AD_ID 0x8053567E
224
225 /* Number of actually used entries */
226 #define ADEID_NUM_XATTR 8
227 #define ADEID_NUM_DOT_UND 2
228 #define ADEID_NUM_RSRC_XATTR 1
229
230 /* AppleDouble magic */
231 #define AD_APPLESINGLE_MAGIC 0x00051600
232 #define AD_APPLEDOUBLE_MAGIC 0x00051607
233 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
234
235 /* Sizes of relevant entry bits */
236 #define ADEDLEN_MAGIC 4
237 #define ADEDLEN_VERSION 4
238 #define ADEDLEN_FILLER 16
239 #define AD_FILLER_TAG "Netatalk " /* should be 16 bytes */
240 #define ADEDLEN_NENTRIES 2
241 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
242 ADEDLEN_FILLER + ADEDLEN_NENTRIES) /* 26 */
243 #define AD_ENTRY_LEN_EID 4
244 #define AD_ENTRY_LEN_OFF 4
245 #define AD_ENTRY_LEN_LEN 4
246 #define AD_ENTRY_LEN (AD_ENTRY_LEN_EID + AD_ENTRY_LEN_OFF + AD_ENTRY_LEN_LEN)
247
248 /* Field widths */
249 #define ADEDLEN_NAME 255
250 #define ADEDLEN_COMMENT 200
251 #define ADEDLEN_FILEI 16
252 #define ADEDLEN_FINDERI 32
253 #define ADEDLEN_FILEDATESI 16
254 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
255 #define ADEDLEN_AFPFILEI 4
256 #define ADEDLEN_MACFILEI 4
257 #define ADEDLEN_PRODOSFILEI 8
258 #define ADEDLEN_MSDOSFILEI 2
259 #define ADEDLEN_DID 4
260 #define ADEDLEN_PRIVDEV 8
261 #define ADEDLEN_PRIVINO 8
262 #define ADEDLEN_PRIVSYN 8
263 #define ADEDLEN_PRIVID 4
264
265 /* Offsets */
266 #define ADEDOFF_MAGIC 0
267 #define ADEDOFF_VERSION (ADEDOFF_MAGIC + ADEDLEN_MAGIC)
268 #define ADEDOFF_FILLER (ADEDOFF_VERSION + ADEDLEN_VERSION)
269 #define ADEDOFF_NENTRIES (ADEDOFF_FILLER + ADEDLEN_FILLER)
270
271 #define ADEDOFF_FINDERI_XATTR (AD_HEADER_LEN + \
272 (ADEID_NUM_XATTR * AD_ENTRY_LEN))
273 #define ADEDOFF_COMMENT_XATTR (ADEDOFF_FINDERI_XATTR + ADEDLEN_FINDERI)
274 #define ADEDOFF_FILEDATESI_XATTR (ADEDOFF_COMMENT_XATTR + ADEDLEN_COMMENT)
275 #define ADEDOFF_AFPFILEI_XATTR (ADEDOFF_FILEDATESI_XATTR + \
276 ADEDLEN_FILEDATESI)
277 #define ADEDOFF_PRIVDEV_XATTR (ADEDOFF_AFPFILEI_XATTR + ADEDLEN_AFPFILEI)
278 #define ADEDOFF_PRIVINO_XATTR (ADEDOFF_PRIVDEV_XATTR + ADEDLEN_PRIVDEV)
279 #define ADEDOFF_PRIVSYN_XATTR (ADEDOFF_PRIVINO_XATTR + ADEDLEN_PRIVINO)
280 #define ADEDOFF_PRIVID_XATTR (ADEDOFF_PRIVSYN_XATTR + ADEDLEN_PRIVSYN)
281
282 #define ADEDOFF_FINDERI_DOT_UND (AD_HEADER_LEN + \
283 (ADEID_NUM_DOT_UND * AD_ENTRY_LEN))
284 #define ADEDOFF_RFORK_DOT_UND (ADEDOFF_FINDERI_DOT_UND + ADEDLEN_FINDERI)
285
286 #define AD_DATASZ_XATTR (AD_HEADER_LEN + \
287 (ADEID_NUM_XATTR * AD_ENTRY_LEN) + \
288 ADEDLEN_FINDERI + ADEDLEN_COMMENT + \
289 ADEDLEN_FILEDATESI + ADEDLEN_AFPFILEI + \
290 ADEDLEN_PRIVDEV + ADEDLEN_PRIVINO + \
291 ADEDLEN_PRIVSYN + ADEDLEN_PRIVID)
292
293 #if AD_DATASZ_XATTR != 402
294 #error bad size for AD_DATASZ_XATTR
295 #endif
296
297 #define AD_DATASZ_DOT_UND (AD_HEADER_LEN + \
298 (ADEID_NUM_DOT_UND * AD_ENTRY_LEN) + \
299 ADEDLEN_FINDERI)
300 #if AD_DATASZ_DOT_UND != 82
301 #error bad size for AD_DATASZ_DOT_UND
302 #endif
303
304 /*
305 * Sharemode locks fcntl() offsets
306 */
307 #if _FILE_OFFSET_BITS == 64 || defined(HAVE_LARGEFILE)
308 #define AD_FILELOCK_BASE (UINT64_C(0x7FFFFFFFFFFFFFFF) - 9)
309 #else
310 #define AD_FILELOCK_BASE (UINT32_C(0x7FFFFFFF) - 9)
311 #endif
312 #define BYTELOCK_MAX (AD_FILELOCK_BASE - 1)
313
314 #define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
315 #define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
316 #define AD_FILELOCK_RSRC_OPEN_WR (AD_FILELOCK_BASE + 2)
317 #define AD_FILELOCK_RSRC_OPEN_RD (AD_FILELOCK_BASE + 3)
318 #define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 4)
319 #define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 5)
320 #define AD_FILELOCK_RSRC_DENY_WR (AD_FILELOCK_BASE + 6)
321 #define AD_FILELOCK_RSRC_DENY_RD (AD_FILELOCK_BASE + 7)
322 #define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 8)
323 #define AD_FILELOCK_RSRC_OPEN_NONE (AD_FILELOCK_BASE + 9)
324
325 /* Time stuff we overload the bits a little */
326 #define AD_DATE_CREATE 0
327 #define AD_DATE_MODIFY 4
328 #define AD_DATE_BACKUP 8
329 #define AD_DATE_ACCESS 12
330 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
331 AD_DATE_BACKUP | AD_DATE_ACCESS)
332 #define AD_DATE_UNIX (1 << 10)
333 #define AD_DATE_START 0x80000000
334 #define AD_DATE_DELTA 946684800
335 #define AD_DATE_FROM_UNIX(x) (htonl((x) - AD_DATE_DELTA))
336 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
337
338 /* Accessor macros */
339 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
340 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
341 #define ad_setentrylen(ad,eid,len) ((ad)->ad_eid[(eid)].ade_len = (len))
342 #define ad_setentryoff(ad,eid,off) ((ad)->ad_eid[(eid)].ade_off = (off))
343 #define ad_entry(ad,eid) ((ad)->ad_data + ad_getentryoff((ad),(eid)))
344
345 struct ad_entry {
346 size_t ade_off;
347 size_t ade_len;
348 };
349
350 struct adouble {
351 vfs_handle_struct *ad_handle;
352 files_struct *ad_fsp;
353 adouble_type_t ad_type;
354 uint32_t ad_magic;
355 uint32_t ad_version;
356 struct ad_entry ad_eid[ADEID_MAX];
357 char *ad_data;
358 };
359
360 struct ad_entry_order {
361 uint32_t id, offset, len;
362 };
363
364 /* Netatalk AppleDouble metadata xattr */
365 static const
366 struct ad_entry_order entry_order_meta_xattr[ADEID_NUM_XATTR + 1] = {
367 {ADEID_FINDERI, ADEDOFF_FINDERI_XATTR, ADEDLEN_FINDERI},
368 {ADEID_COMMENT, ADEDOFF_COMMENT_XATTR, 0},
369 {ADEID_FILEDATESI, ADEDOFF_FILEDATESI_XATTR, ADEDLEN_FILEDATESI},
370 {ADEID_AFPFILEI, ADEDOFF_AFPFILEI_XATTR, ADEDLEN_AFPFILEI},
371 {ADEID_PRIVDEV, ADEDOFF_PRIVDEV_XATTR, 0},
372 {ADEID_PRIVINO, ADEDOFF_PRIVINO_XATTR, 0},
373 {ADEID_PRIVSYN, ADEDOFF_PRIVSYN_XATTR, 0},
374 {ADEID_PRIVID, ADEDOFF_PRIVID_XATTR, 0},
375 {0, 0, 0}
376 };
377
378 /* AppleDouble ressource fork file (the ones prefixed by "._") */
379 static const
380 struct ad_entry_order entry_order_dot_und[ADEID_NUM_DOT_UND + 1] = {
381 {ADEID_FINDERI, ADEDOFF_FINDERI_DOT_UND, ADEDLEN_FINDERI},
382 {ADEID_RFORK, ADEDOFF_RFORK_DOT_UND, 0},
383 {0, 0, 0}
384 };
385
386 /*
387 * Fake AppleDouble entry oder for ressource fork xattr. The xattr
388 * isn't an AppleDouble file, it simply contains the ressource data,
389 * but in order to be able to use some API calls like ad_getentryoff()
390 * we build a fake/helper struct adouble with this entry order struct.
391 */
392 static const
393 struct ad_entry_order entry_order_rsrc_xattr[ADEID_NUM_RSRC_XATTR + 1] = {
394 {ADEID_RFORK, 0, 0},
395 {0, 0, 0}
396 };
397
398 /* Conversion from enumerated id to on-disk AppleDouble id */
399 #define AD_EID_DISK(a) (set_eid[a])
400 static const uint32_t set_eid[] = {
401 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
402 AD_DEV, AD_INO, AD_SYN, AD_ID
403 };
404
405 /*
406 * Forward declarations
407 */
408 static struct adouble *ad_init(TALLOC_CTX *ctx, vfs_handle_struct *handle,
409 adouble_type_t type, files_struct *fsp);
410 static int ad_write(struct adouble *ad, const char *path);
411 static int adouble_path(TALLOC_CTX *ctx, const char *path_in, char **path_out);
412
413 /**
414 * Get a date
415 **/
416 static int ad_getdate(const struct adouble *ad,
417 unsigned int dateoff,
418 uint32_t *date)
419 {
420 bool xlate = (dateoff & AD_DATE_UNIX);
421
422 dateoff &= AD_DATE_MASK;
423 if (!ad_getentryoff(ad, ADEID_FILEDATESI)) {
424 return -1;
425 }
426
427 if (dateoff > AD_DATE_ACCESS) {
428 return -1;
429 }
430 memcpy(date,
431 ad_entry(ad, ADEID_FILEDATESI) + dateoff,
432 sizeof(uint32_t));
433
434 if (xlate) {
435 *date = AD_DATE_TO_UNIX(*date);
436 }
437 return 0;
438 }
439
440 /**
441 * Set a date
442 **/
443 static int ad_setdate(struct adouble *ad, unsigned int dateoff, uint32_t date)
444 {
445 bool xlate = (dateoff & AD_DATE_UNIX);
446
447 if (!ad_getentryoff(ad, ADEID_FILEDATESI)) {
448 return 0;
449 }
450
451 dateoff &= AD_DATE_MASK;
452 if (xlate) {
453 date = AD_DATE_FROM_UNIX(date);
454 }
455
456 if (dateoff > AD_DATE_ACCESS) {
457 return -1;
458 }
459
460 memcpy(ad_entry(ad, ADEID_FILEDATESI) + dateoff, &date, sizeof(date));
461
462 return 0;
463 }
464
465
466 /**
467 * Map on-disk AppleDouble id to enumerated id
468 **/
469 static uint32_t get_eid(uint32_t eid)
470 {
471 if (eid <= 15) {
472 return eid;
473 }
474
475 switch (eid) {
476 case AD_DEV:
477 return ADEID_PRIVDEV;
478 case AD_INO:
479 return ADEID_PRIVINO;
480 case AD_SYN:
481 return ADEID_PRIVSYN;
482 case AD_ID:
483 return ADEID_PRIVID;
484 default:
485 break;
486 }
487
488 return 0;
489 }
490
491 /**
492 * Pack AppleDouble structure into data buffer
493 **/
494 static bool ad_pack(struct adouble *ad)
495 {
496 uint32_t eid;
497 uint16_t nent;
498 uint32_t bufsize;
499 uint32_t offset = 0;
500
501 bufsize = talloc_get_size(ad->ad_data);
502
503 if (offset + ADEDLEN_MAGIC < offset ||
504 offset + ADEDLEN_MAGIC >= bufsize) {
505 return false;
506 }
507 RSIVAL(ad->ad_data, offset, ad->ad_magic);
508 offset += ADEDLEN_MAGIC;
509
510 if (offset + ADEDLEN_VERSION < offset ||
511 offset + ADEDLEN_VERSION >= bufsize) {
512 return false;
513 }
514 RSIVAL(ad->ad_data, offset, ad->ad_version);
515 offset += ADEDLEN_VERSION;
516
517 if (offset + ADEDLEN_FILLER < offset ||
518 offset + ADEDLEN_FILLER >= bufsize) {
519 return false;
520 }
521 if (ad->ad_type == ADOUBLE_RSRC) {
522 memcpy(ad->ad_data + offset, AD_FILLER_TAG, ADEDLEN_FILLER);
523 }
524 offset += ADEDLEN_FILLER;
525
526 if (offset + ADEDLEN_NENTRIES < offset ||
527 offset + ADEDLEN_NENTRIES >= bufsize) {
528 return false;
529 }
530 offset += ADEDLEN_NENTRIES;
531
532 for (eid = 0, nent = 0; eid < ADEID_MAX; eid++) {
533 if (ad->ad_eid[eid].ade_off == 0) {
534 /*
535 * ade_off is also used as indicator whether a
536 * specific entry is used or not
537 */
538 continue;
539 }
540
541 if (offset + AD_ENTRY_LEN_EID < offset ||
542 offset + AD_ENTRY_LEN_EID >= bufsize) {
543 return false;
544 }
545 RSIVAL(ad->ad_data, offset, AD_EID_DISK(eid));
546 offset += AD_ENTRY_LEN_EID;
547
548 if (offset + AD_ENTRY_LEN_OFF < offset ||
549 offset + AD_ENTRY_LEN_OFF >= bufsize) {
550 return false;
551 }
552 RSIVAL(ad->ad_data, offset, ad->ad_eid[eid].ade_off);
553 offset += AD_ENTRY_LEN_OFF;
554
555 if (offset + AD_ENTRY_LEN_LEN < offset ||
556 offset + AD_ENTRY_LEN_LEN >= bufsize) {
557 return false;
558 }
559 RSIVAL(ad->ad_data, offset, ad->ad_eid[eid].ade_len);
560 offset += AD_ENTRY_LEN_LEN;
561
562 nent++;
563 }
564
565 if (ADEDOFF_NENTRIES + 2 >= bufsize) {
566 return false;
567 }
568 RSSVAL(ad->ad_data, ADEDOFF_NENTRIES, nent);
569
570 return 0;
571 }
572
573 /**
574 * Unpack an AppleDouble blob into a struct adoble
575 **/
576 static bool ad_unpack(struct adouble *ad, const int nentries, size_t filesize)
577 {
578 size_t bufsize = talloc_get_size(ad->ad_data);
579 int adentries, i;
580 uint32_t eid, len, off;
581
582 /*
583 * The size of the buffer ad->ad_data is checked when read, so
584 * we wouldn't have to check our own offsets, a few extra
585 * checks won't hurt though. We have to check the offsets we
586 * read from the buffer anyway.
587 */
588
589 if (bufsize < (AD_HEADER_LEN + (AD_ENTRY_LEN * nentries))) {
590 DEBUG(1, ("bad size\n"));
591 return false;
592 }
593
594 ad->ad_magic = RIVAL(ad->ad_data, 0);
595 ad->ad_version = RIVAL(ad->ad_data, ADEDOFF_VERSION);
596 if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION)) {
597 DEBUG(1, ("wrong magic or version\n"));
598 return false;
599 }
600
601 adentries = RSVAL(ad->ad_data, ADEDOFF_NENTRIES);
602 if (adentries != nentries) {
603 DEBUG(1, ("invalid number of entries: %d\n", adentries));
604 return false;
605 }
606
607 /* now, read in the entry bits */
608 for (i = 0; i < adentries; i++) {
609 eid = RIVAL(ad->ad_data, AD_HEADER_LEN + (i * AD_ENTRY_LEN));
610 eid = get_eid(eid);
611 off = RIVAL(ad->ad_data, AD_HEADER_LEN + (i * AD_ENTRY_LEN) + 4);
612 len = RIVAL(ad->ad_data, AD_HEADER_LEN + (i * AD_ENTRY_LEN) + 8);
613
614 if (!eid || eid > ADEID_MAX) {
615 DEBUG(1, ("bogus eid %d\n", eid));
616 return false;
617 }
618
619 /*
620 * All entries other than the resource fork are
621 * expected to be read into the ad_data buffer, so
622 * ensure the specified offset is within that bound
623 */
624 if ((off > bufsize) && (eid != ADEID_RFORK)) {
625 DEBUG(1, ("bogus eid %d: off: %" PRIu32 ", len: %" PRIu32 "\n",
626 eid, off, len));
627 return false;
628 }
629
630 /*
631 * All entries besides FinderInfo and resource fork
632 * must fit into the buffer. FinderInfo is special as
633 * it may be larger then the default 32 bytes (if it
634 * contains marshalled xattrs), but we will fixup that
635 * in ad_convert(). And the resource fork is never
636 * accessed directly by the ad_data buf (also see
637 * comment above) anyway.
638 */
639 if ((eid != ADEID_RFORK) &&
640 (eid != ADEID_FINDERI) &&
641 ((off + len) > bufsize)) {
642 DEBUG(1, ("bogus eid %d: off: %" PRIu32 ", len: %" PRIu32 "\n",
643 eid, off, len));
644 return false;
645 }
646
647 /*
648 * That would be obviously broken
649 */
650 if (off > filesize) {
651 DEBUG(1, ("bogus eid %d: off: %" PRIu32 ", len: %" PRIu32 "\n",
652 eid, off, len));
653 return false;
654 }
655
656 /*
657 * Check for any entry that has its end beyond the
658 * filesize.
659 */
660 if (off + len < off) {
661 DEBUG(1, ("offset wrap in eid %d: off: %" PRIu32
662 ", len: %" PRIu32 "\n",
663 eid, off, len));
664 return false;
665
666 }
667 if (off + len > filesize) {
668 /*
669 * If this is the resource fork entry, we fix
670 * up the length, for any other entry we bail
671 * out.
672 */
673 if (eid != ADEID_RFORK) {
674 DEBUG(1, ("bogus eid %d: off: %" PRIu32
675 ", len: %" PRIu32 "\n",
676 eid, off, len));
677 return false;
678 }
679
680 /*
681 * Fixup the resource fork entry by limiting
682 * the size to entryoffset - filesize.
683 */
684 len = filesize - off;
685 DEBUG(1, ("Limiting ADEID_RFORK: off: %" PRIu32
686 ", len: %" PRIu32 "\n", off, len));
687 }
688
689 ad->ad_eid[eid].ade_off = off;
690 ad->ad_eid[eid].ade_len = len;
691 }
692
693 return true;
694 }
695
696 /**
697 * Convert from Apple's ._ file to Netatalk
698 *
699 * Apple's AppleDouble may contain a FinderInfo entry longer then 32
700 * bytes containing packed xattrs. Netatalk can't deal with that, so
701 * we simply discard the packed xattrs.
702 *
703 * @return -1 in case an error occured, 0 if no conversion was done, 1
704 * otherwise
705 **/
706 static int ad_convert(struct adouble *ad, int fd)
707 {
708 int rc = 0;
709 char *map = MAP_FAILED;
710 size_t origlen;
711
712 origlen = ad_getentryoff(ad, ADEID_RFORK) +
713 ad_getentrylen(ad, ADEID_RFORK);
714
715 /* FIXME: direct use of mmap(), vfs_aio_fork does it too */
716 map = mmap(NULL, origlen, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
717 if (map == MAP_FAILED) {
718 DEBUG(2, ("mmap AppleDouble: %s\n", strerror(errno)));
719 rc = -1;
720 goto exit;
721 }
722
723 if (ad_getentrylen(ad, ADEID_RFORK) > 0) {
724 memmove(map + ad_getentryoff(ad, ADEID_FINDERI) + ADEDLEN_FINDERI,
725 map + ad_getentryoff(ad, ADEID_RFORK),
726 ad_getentrylen(ad, ADEID_RFORK));
727 }
728
729 ad_setentrylen(ad, ADEID_FINDERI, ADEDLEN_FINDERI);
730 ad_setentryoff(ad, ADEID_RFORK,
731 ad_getentryoff(ad, ADEID_FINDERI) + ADEDLEN_FINDERI);
732
733 /*
734 * FIXME: direct ftruncate(), but we don't have a fsp for the
735 * VFS call
736 */
737 rc = ftruncate(fd, ad_getentryoff(ad, ADEID_RFORK)
738 + ad_getentrylen(ad, ADEID_RFORK));
739
740 exit:
741 if (map != MAP_FAILED) {
742 munmap(map, origlen);
743 }
744 return rc;
745 }
746
747 /**
748 * Read and parse Netatalk AppleDouble metadata xattr
749 **/
750 static ssize_t ad_header_read_meta(struct adouble *ad, const char *path)
751 {
752 int rc = 0;
753 ssize_t ealen;
754 bool ok;
755
756 DEBUG(10, ("reading meta xattr for %s\n", path));
757
758 ealen = SMB_VFS_GETXATTR(ad->ad_handle->conn, path,
759 AFPINFO_EA_NETATALK, ad->ad_data,
760 AD_DATASZ_XATTR);
761 if (ealen == -1) {
762 switch (errno) {
763 case ENOATTR:
764 case ENOENT:
765 if (errno == ENOATTR) {
766 errno = ENOENT;
767 }
768 rc = -1;
769 goto exit;
770 default:
771 DEBUG(2, ("error reading meta xattr: %s\n",
772 strerror(errno)));
773 rc = -1;
774 goto exit;
775 }
776 }
777 if (ealen != AD_DATASZ_XATTR) {
778 DEBUG(2, ("bad size %zd\n", ealen));
779 errno = EINVAL;
780 rc = -1;
781 goto exit;
782 }
783
784 /* Now parse entries */
785 ok = ad_unpack(ad, ADEID_NUM_XATTR, AD_DATASZ_XATTR);
786 if (!ok) {
787 DEBUG(2, ("invalid AppleDouble metadata xattr\n"));
788 errno = EINVAL;
789 rc = -1;
790 goto exit;
791 }
792
793 if (!ad_getentryoff(ad, ADEID_FINDERI)
794 || !ad_getentryoff(ad, ADEID_COMMENT)
795 || !ad_getentryoff(ad, ADEID_FILEDATESI)
796 || !ad_getentryoff(ad, ADEID_AFPFILEI)
797 || !ad_getentryoff(ad, ADEID_PRIVDEV)
798 || !ad_getentryoff(ad, ADEID_PRIVINO)
799 || !ad_getentryoff(ad, ADEID_PRIVSYN)
800 || !ad_getentryoff(ad, ADEID_PRIVID)) {
801 DEBUG(2, ("invalid AppleDouble metadata xattr\n"));
802 errno = EINVAL;
803 rc = -1;
804 goto exit;
805 }
806
807 exit:
808 DEBUG(10, ("reading meta xattr for %s, rc: %d\n", path, rc));
809
810 if (rc != 0) {
811 ealen = -1;
812 if (errno == EINVAL) {
813 become_root();
814 removexattr(path, AFPINFO_EA_NETATALK);
815 unbecome_root();
816 errno = ENOENT;
817 }
818 }
819 return ealen;
820 }
821
822 /**
823 * Read and parse resource fork, either ._ AppleDouble file or xattr
824 **/
825 static ssize_t ad_header_read_rsrc(struct adouble *ad, const char *path)
826 {
827 struct fruit_config_data *config = NULL;
828 int fd = -1;
829 int rc = 0;
830 ssize_t len;
831 char *adpath = NULL;
832 bool opened = false;
833 int mode;
834 struct adouble *meta_ad = NULL;
835 SMB_STRUCT_STAT sbuf;
836 bool ok;
837 int saved_errno = 0;
838
839 SMB_VFS_HANDLE_GET_DATA(ad->ad_handle, config,
840 struct fruit_config_data, return -1);
841
842 /* Try rw first so we can use the fd in ad_convert() */
843 mode = O_RDWR;
844
845 if (ad->ad_fsp && ad->ad_fsp->fh && (ad->ad_fsp->fh->fd != -1)) {
846 fd = ad->ad_fsp->fh->fd;
847 } else {
848 if (config->rsrc == FRUIT_RSRC_XATTR) {
849 adpath = talloc_strdup(talloc_tos(), path);
850 } else {
851 rc = adouble_path(talloc_tos(), path, &adpath);
852 if (rc != 0) {
853 goto exit;
854 }
855 }
856
857 retry:
858 if (config->rsrc == FRUIT_RSRC_XATTR) {
859 #ifndef HAVE_ATTROPEN
860 errno = ENOSYS;
861 rc = -1;
862 goto exit;
863 #else
864 /* FIXME: direct Solaris xattr syscall */
865 fd = attropen(adpath, AFPRESOURCE_EA_NETATALK,
866 mode, 0);
867 #endif
868 } else {
869 /* FIXME: direct open(), don't have an fsp */
870 fd = open(adpath, mode);
871 }
872
873 if (fd == -1) {
874 switch (errno) {
875 case EROFS:
876 case EACCES:
877 if (mode == O_RDWR) {
878 mode = O_RDONLY;
879 goto retry;
880 }
881 /* fall through ... */
882 default:
883 DEBUG(2, ("open AppleDouble: %s, %s\n",
884 adpath, strerror(errno)));
885 rc = -1;
886 goto exit;
887 }
888 }
889 opened = true;
890 }
891
892 if (config->rsrc == FRUIT_RSRC_XATTR) {
893 /* FIXME: direct sys_fstat(), don't have an fsp */
894 rc = sys_fstat(
895 fd, &sbuf,
896 lp_fake_directory_create_times(
897 SNUM(ad->ad_handle->conn)));
898 if (rc != 0) {
899 goto exit;
900 }
901 len = sbuf.st_ex_size;
902 ad_setentrylen(ad, ADEID_RFORK, len);
903 } else {
904 /* FIXME: direct sys_pread(), don't have an fsp */
905 len = sys_pread(fd, ad->ad_data, AD_DATASZ_DOT_UND, 0);
906 if (len != AD_DATASZ_DOT_UND) {
907 DEBUG(2, ("%s: bad size: %zd\n",
908 strerror(errno), len));
909 rc = -1;
910 goto exit;
911 }
912
913 /* FIXME: direct sys_fstat(), we don't have an fsp */
914 rc = sys_fstat(fd, &sbuf,
915 lp_fake_directory_create_times(
916 SNUM(ad->ad_handle->conn)));
917 if (rc != 0) {
918 goto exit;
919 }
920
921 /* Now parse entries */
922 ok = ad_unpack(ad, ADEID_NUM_DOT_UND, sbuf.st_ex_size);
923 if (!ok) {
924 DEBUG(1, ("invalid AppleDouble ressource %s\n", path));
925 errno = EINVAL;
926 rc = -1;
927 goto exit;
928 }
929
930 if ((ad_getentryoff(ad, ADEID_FINDERI)
931 != ADEDOFF_FINDERI_DOT_UND)
932 || (ad_getentrylen(ad, ADEID_FINDERI)
933 < ADEDLEN_FINDERI)
934 || (ad_getentryoff(ad, ADEID_RFORK)
935 < ADEDOFF_RFORK_DOT_UND)) {
936 DEBUG(2, ("invalid AppleDouble ressource %s\n", path));
937 errno = EINVAL;
938 rc = -1;
939 goto exit;
940 }
941
942 if ((mode == O_RDWR)
943 && (ad_getentrylen(ad, ADEID_FINDERI) > ADEDLEN_FINDERI)) {
944 rc = ad_convert(ad, fd);
945 if (rc != 0) {
946 rc = -1;
947 goto exit;
948 }
949 /*
950 * Can't use ad_write() because we might not have a fsp
951 */
952 rc = ad_pack(ad);
953 if (rc != 0) {
954 goto exit;
955 }
956 /* FIXME: direct sys_pwrite(), don't have an fsp */
957 len = sys_pwrite(fd, ad->ad_data,
958 AD_DATASZ_DOT_UND, 0);
959 if (len != AD_DATASZ_DOT_UND) {
960 DEBUG(2, ("%s: bad size: %zd\n", adpath, len));
961 rc = -1;
962 goto exit;
963 }
964
965 meta_ad = ad_init(talloc_tos(), ad->ad_handle,
966 ADOUBLE_META, NULL);
967 if (meta_ad == NULL) {
968 rc = -1;
969 goto exit;
970 }
971
972 memcpy(ad_entry(meta_ad, ADEID_FINDERI),
973 ad_entry(ad, ADEID_FINDERI),
974 ADEDLEN_FINDERI);
975
976 rc = ad_write(meta_ad, path);
977 if (rc != 0) {
978 rc = -1;
979 goto exit;
980 }
981 }
982 }
983
984 DEBUG(10, ("opened AppleDouble: %s\n", path));
985
986 exit:
987 if (rc != 0) {
988 saved_errno = errno;
989 len = -1;
990 }
991 if (opened && fd != -1) {
992 close(fd);
993 }
994 TALLOC_FREE(adpath);
995 TALLOC_FREE(meta_ad);
996 if (rc != 0) {
997 errno = saved_errno;
998 }
999 return len;
1000 }
1001
1002 /**
1003 * Read and unpack an AppleDouble metadata xattr or resource
1004 **/
1005 static ssize_t ad_read(struct adouble *ad, const char *path)
1006 {
1007 switch (ad->ad_type) {
1008 case ADOUBLE_META:
1009 return ad_header_read_meta(ad, path);
1010 case ADOUBLE_RSRC:
1011 return ad_header_read_rsrc(ad, path);
1012 default:
1013 return -1;
1014 }
1015 }
1016
1017 /**
1018 * Allocate a struct adouble without initialiing it
1019 *
1020 * The struct is either hang of the fsp extension context or if fsp is
1021 * NULL from ctx.
1022 *
1023 * @param[in] ctx talloc context
1024 * @param[in] handle vfs handle
1025 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
1026
1027 * @param[in] fsp if not NULL (for stream IO), the adouble handle is
1028 * added as an fsp extension
1029 *
1030 * @return adouble handle
1031 **/
1032 static struct adouble *ad_alloc(TALLOC_CTX *ctx, vfs_handle_struct *handle,
1033 adouble_type_t type, files_struct *fsp)
1034 {
1035 int rc = 0;
1036 size_t adsize = 0;
1037 struct adouble *ad;
1038 struct fruit_config_data *config;
1039
1040 SMB_VFS_HANDLE_GET_DATA(handle, config,
1041 struct fruit_config_data, return NULL);
1042
1043 switch (type) {
1044 case ADOUBLE_META:
1045 adsize = AD_DATASZ_XATTR;
1046 break;
1047 case ADOUBLE_RSRC:
1048 if (config->rsrc == FRUIT_RSRC_ADFILE) {
1049 adsize = AD_DATASZ_DOT_UND;
1050 }
1051 break;
1052 default:
1053 return NULL;
1054 }
1055
1056 if (!fsp) {
1057 ad = talloc_zero(ctx, struct adouble);
1058 if (ad == NULL) {
1059 rc = -1;
1060 goto exit;
1061 }
1062 if (adsize) {
1063 ad->ad_data = talloc_zero_array(ad, char, adsize);
1064 }
1065 } else {
1066 ad = (struct adouble *)VFS_ADD_FSP_EXTENSION(handle, fsp,
1067 struct adouble,
1068 NULL);
1069 if (ad == NULL) {
1070 rc = -1;
1071 goto exit;
1072 }
1073 if (adsize) {
1074 ad->ad_data = talloc_zero_array(
1075 VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
1076 char, adsize);
1077 }
1078 ad->ad_fsp = fsp;
1079 }
1080
1081 if (adsize && ad->ad_data == NULL) {
1082 rc = -1;
1083 goto exit;
1084 }
1085 ad->ad_handle = handle;
1086 ad->ad_type = type;
1087 ad->ad_magic = AD_MAGIC;
1088 ad->ad_version = AD_VERSION;
1089
1090 exit:
1091 if (rc != 0) {
1092 TALLOC_FREE(ad);
1093 }
1094 return ad;
1095 }
1096
1097 /**
1098 * Allocate and initialize a new struct adouble
1099 *
1100 * @param[in] ctx talloc context
1101 * @param[in] handle vfs handle
1102 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
1103 * @param[in] fsp file handle, may be NULL for a type of e_ad_meta
1104 *
1105 * @return adouble handle, initialized
1106 **/
1107 static struct adouble *ad_init(TALLOC_CTX *ctx, vfs_handle_struct *handle,
1108 adouble_type_t type, files_struct *fsp)
1109 {
1110 int rc = 0;
1111 const struct ad_entry_order *eid;
1112 struct adouble *ad = NULL;
1113 struct fruit_config_data *config;
1114 time_t t = time(NULL);
1115
1116 SMB_VFS_HANDLE_GET_DATA(handle, config,
1117 struct fruit_config_data, return NULL);
1118
1119 switch (type) {
1120 case ADOUBLE_META:
1121 eid = entry_order_meta_xattr;
1122 break;
1123 case ADOUBLE_RSRC:
1124 if (config->rsrc == FRUIT_RSRC_ADFILE) {
1125 eid = entry_order_dot_und;
1126 } else {
1127 eid = entry_order_rsrc_xattr;
1128 }
1129 break;
1130 default:
1131 return NULL;
1132 }
1133
1134 ad = ad_alloc(ctx, handle, type, fsp);
1135 if (ad == NULL) {
1136 return NULL;
1137 }
1138
1139 while (eid->id) {
1140 ad->ad_eid[eid->id].ade_off = eid->offset;
1141 ad->ad_eid[eid->id].ade_len = eid->len;
1142 eid++;
1143 }
1144
1145 /* put something sane in the date fields */
1146 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, t);
1147 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, t);
1148 ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, t);
1149 ad_setdate(ad, AD_DATE_BACKUP, htonl(AD_DATE_START));
1150
1151 if (rc != 0) {
1152 TALLOC_FREE(ad);
1153 }
1154 return ad;
1155 }
1156
1157 /**
1158 * Return AppleDouble data for a file
1159 *
1160 * @param[in] ctx talloc context
1161 * @param[in] handle vfs handle
1162 * @param[in] path pathname to file or directory
1163 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
1164 *
1165 * @return talloced struct adouble or NULL on error
1166 **/
1167 static struct adouble *ad_get(TALLOC_CTX *ctx, vfs_handle_struct *handle,
1168 const char *path, adouble_type_t type)
1169 {
1170 int rc = 0;
1171 ssize_t len;
1172 struct adouble *ad = NULL;
1173
1174 DEBUG(10, ("ad_get(%s) called for %s\n",
1175 type == ADOUBLE_META ? "meta" : "rsrc", path));
1176
1177 ad = ad_alloc(ctx, handle, type, NULL);
1178 if (ad == NULL) {
1179 rc = -1;
1180 goto exit;
1181 }
1182
1183 len = ad_read(ad, path);
1184 if (len == -1) {
1185 DEBUG(10, ("error reading AppleDouble for %s\n", path));
1186 rc = -1;
1187 goto exit;
1188 }
1189
1190 exit:
1191 DEBUG(10, ("ad_get(%s) for %s returning %d\n",
1192 type == ADOUBLE_META ? "meta" : "rsrc", path, rc));
1193
1194 if (rc != 0) {
1195 TALLOC_FREE(ad);
1196 }
1197 return ad;
1198 }
1199
1200 /**
1201 * Set AppleDouble metadata on a file or directory
1202 *
1203 * @param[in] ad adouble handle
1204
1205 * @param[in] path pathname to file or directory, may be NULL for a
1206 * resource fork
1207 *
1208 * @return status code, 0 means success
1209 **/
1210 static int ad_write(struct adouble *ad, const char *path)
1211 {
1212 int rc = 0;
1213 ssize_t len;
1214
1215 rc = ad_pack(ad);
1216 if (rc != 0) {
1217 goto exit;
1218 }
1219
1220 switch (ad->ad_type) {
1221 case ADOUBLE_META:
1222 rc = SMB_VFS_SETXATTR(ad->ad_handle->conn, path,
1223 AFPINFO_EA_NETATALK, ad->ad_data,
1224 AD_DATASZ_XATTR, 0);
1225 break;
1226 case ADOUBLE_RSRC:
1227 if ((ad->ad_fsp == NULL)
1228 || (ad->ad_fsp->fh == NULL)
1229 || (ad->ad_fsp->fh->fd == -1)) {
1230 rc = -1;
1231 goto exit;
1232 }
1233 /* FIXME: direct sys_pwrite(), don't have an fsp */
1234 len = sys_pwrite(ad->ad_fsp->fh->fd, ad->ad_data,
1235 talloc_get_size(ad->ad_data), 0);
1236 if (len != talloc_get_size(ad->ad_data)) {
1237 DEBUG(1, ("short write on %s: %zd",
1238 fsp_str_dbg(ad->ad_fsp), len));
1239 rc = -1;
1240 goto exit;
1241 }
1242 break;
1243 default:
1244 return -1;
1245 }
1246 exit:
1247 return rc;
1248 }
1249
1250 /*****************************************************************************
1251 * Helper functions
1252 *****************************************************************************/
1253
1254 static bool is_afpinfo_stream(const struct smb_filename *smb_fname)
1255 {
1256 if (strncasecmp_m(smb_fname->stream_name,
1257 AFPINFO_STREAM_NAME,
1258 strlen(AFPINFO_STREAM_NAME)) == 0) {
1259 return true;
1260 }
1261 return false;
1262 }
1263
1264 static bool is_afpresource_stream(const struct smb_filename *smb_fname)
1265 {
1266 if (strncasecmp_m(smb_fname->stream_name,
1267 AFPRESOURCE_STREAM_NAME,
1268 strlen(AFPRESOURCE_STREAM_NAME)) == 0) {
1269 return true;
1270 }
1271 return false;
1272 }
1273
1274 /**
1275 * Test whether stream is an Apple stream, not used atm
1276 **/
1277 #if 0
1278 static bool is_apple_stream(const struct smb_filename *smb_fname)
1279 {
1280 if (is_afpinfo_stream(smb_fname)) {
1281 return true;
1282 }
1283 if (is_afpresource_stream(smb_fname)) {
1284 return true;
1285 }
1286 return false;
1287 }
1288 #endif
1289
1290 /**
1291 * Initialize config struct from our smb.conf config parameters
1292 **/
1293 static int init_fruit_config(vfs_handle_struct *handle)
1294 {
1295 struct fruit_config_data *config;
1296 int enumval;
1297
1298 config = talloc_zero(handle->conn, struct fruit_config_data);
1299 if (!config) {
1300 DEBUG(1, ("talloc_zero() failed\n"));
1301 errno = ENOMEM;
1302 return -1;
1303 }
1304
1305 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1306 "ressource", fruit_rsrc, FRUIT_RSRC_ADFILE);
1307 if (enumval == -1) {
1308 DEBUG(1, ("value for %s: ressource type unknown\n",
1309 FRUIT_PARAM_TYPE_NAME));
1310 return -1;
1311 }
1312 config->rsrc = (enum fruit_rsrc)enumval;
1313
1314 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1315 "metadata", fruit_meta, FRUIT_META_NETATALK);
1316 if (enumval == -1) {
1317 DEBUG(1, ("value for %s: metadata type unknown\n",
1318 FRUIT_PARAM_TYPE_NAME));
1319 return -1;
1320 }
1321 config->meta = (enum fruit_meta)enumval;
1322
1323 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1324 "locking", fruit_locking, FRUIT_LOCKING_NONE);
1325 if (enumval == -1) {
1326 DEBUG(1, ("value for %s: locking type unknown\n",
1327 FRUIT_PARAM_TYPE_NAME));
1328 return -1;
1329 }
1330 config->locking = (enum fruit_locking)enumval;
1331
1332 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1333 "encoding", fruit_encoding, FRUIT_ENC_PRIVATE);
1334 if (enumval == -1) {
1335 DEBUG(1, ("value for %s: encoding type unknown\n",
1336 FRUIT_PARAM_TYPE_NAME));
1337 return -1;
1338 }
1339 config->encoding = (enum fruit_encoding)enumval;
1340
1341 config->veto_appledouble = lp_parm_bool(
1342 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1343 "veto_appledouble", true);
1344
1345 config->use_aapl = lp_parm_bool(
1346 -1, FRUIT_PARAM_TYPE_NAME, "aapl", true);
1347
1348 config->unix_info_enabled = lp_parm_bool(
1349 -1, FRUIT_PARAM_TYPE_NAME, "nfs_aces", true);
1350
1351 config->use_copyfile = lp_parm_bool(-1, FRUIT_PARAM_TYPE_NAME,
1352 "copyfile", false);
1353
1354 config->readdir_attr_rsize = lp_parm_bool(
1355 SNUM(handle->conn), "readdir_attr", "aapl_rsize", true);
1356
1357 config->readdir_attr_finder_info = lp_parm_bool(
1358 SNUM(handle->conn), "readdir_attr", "aapl_finder_info", true);
1359
1360 config->readdir_attr_max_access = lp_parm_bool(
1361 SNUM(handle->conn), "readdir_attr", "aapl_max_access", true);
1362
1363 SMB_VFS_HANDLE_SET_DATA(handle, config,
1364 NULL, struct fruit_config_data,
1365 return -1);
1366
1367 return 0;
1368 }
1369
1370 /**
1371 * Prepend "._" to a basename
1372 **/
1373 static int adouble_path(TALLOC_CTX *ctx, const char *path_in, char **path_out)
1374 {
1375 char *parent;
1376 const char *base;
1377
1378 if (!parent_dirname(ctx, path_in, &parent, &base)) {
1379 return -1;
1380 }
1381
1382 *path_out = talloc_asprintf(ctx, "%s/._%s", parent, base);
1383 if (*path_out == NULL) {
1384 return -1;
1385 }
1386
1387 return 0;
1388 }
1389
1390 /**
1391 * Allocate and initialize an AfpInfo struct
1392 **/
1393 static AfpInfo *afpinfo_new(TALLOC_CTX *ctx)
1394 {
1395 AfpInfo *ai = talloc_zero(ctx, AfpInfo);
1396 if (ai == NULL) {
1397 return NULL;
1398 }
1399 ai->afpi_Signature = AFP_Signature;
1400 ai->afpi_Version = AFP_Version;
1401 ai->afpi_BackupTime = AD_DATE_START;
1402 return ai;
1403 }
1404
1405 /**
1406 * Pack an AfpInfo struct into a buffer
1407 *
1408 * Buffer size must be at least AFP_INFO_SIZE
1409 * Returns size of packed buffer
1410 **/
1411 static ssize_t afpinfo_pack(const AfpInfo *ai, char *buf)
1412 {
1413 memset(buf, 0, AFP_INFO_SIZE);
1414
1415 RSIVAL(buf, 0, ai->afpi_Signature);
1416 RSIVAL(buf, 4, ai->afpi_Version);
1417 RSIVAL(buf, 12, ai->afpi_BackupTime);
1418 memcpy(buf + 16, ai->afpi_FinderInfo, sizeof(ai->afpi_FinderInfo));
1419
1420 return AFP_INFO_SIZE;
1421 }
1422
1423 /**
1424 * Unpack a buffer into a AfpInfo structure
1425 *
1426 * Buffer size must be at least AFP_INFO_SIZE
1427 * Returns allocated AfpInfo struct
1428 **/
1429 static AfpInfo *afpinfo_unpack(TALLOC_CTX *ctx, const void *data)
1430 {
1431 AfpInfo *ai = talloc_zero(ctx, AfpInfo);
1432 if (ai == NULL) {
1433 return NULL;
1434 }
1435
1436 ai->afpi_Signature = RIVAL(data, 0);
1437 ai->afpi_Version = RIVAL(data, 4);
1438 ai->afpi_BackupTime = RIVAL(data, 12);
1439 memcpy(ai->afpi_FinderInfo, (const char *)data + 16,
1440 sizeof(ai->afpi_FinderInfo));
1441
1442 if (ai->afpi_Signature != AFP_Signature
1443 || ai->afpi_Version != AFP_Version) {
1444 DEBUG(1, ("Bad AfpInfo signature or version\n"));
1445 TALLOC_FREE(ai);
1446 }
1447
1448 return ai;
1449 }
1450
1451 /**
1452 * Fake an inode number from the md5 hash of the (xattr) name
1453 **/
1454 static SMB_INO_T fruit_inode(const SMB_STRUCT_STAT *sbuf, const char *sname)
1455 {
1456 MD5_CTX ctx;
1457 unsigned char hash[16];
1458 SMB_INO_T result;
1459 char *upper_sname;
1460
1461 upper_sname = talloc_strdup_upper(talloc_tos(), sname);
1462 SMB_ASSERT(upper_sname != NULL);
1463
1464 MD5Init(&ctx);
1465 MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_dev),
1466 sizeof(sbuf->st_ex_dev));
1467 MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_ino),
1468 sizeof(sbuf->st_ex_ino));
1469 MD5Update(&ctx, (unsigned char *)upper_sname,
1470 talloc_get_size(upper_sname)-1);
1471 MD5Final(hash, &ctx);
1472
1473 TALLOC_FREE(upper_sname);
1474
1475 /* Hopefully all the variation is in the lower 4 (or 8) bytes! */
1476 memcpy(&result, hash, sizeof(result));
1477
1478 DEBUG(10, ("fruit_inode \"%s\": ino=0x%llu\n",
1479 sname, (unsigned long long)result));
1480
1481 return result;
1482 }
1483
1484 /**
1485 * Ensure ad_fsp is still valid
1486 **/
1487 static bool fruit_fsp_recheck(struct adouble *ad, files_struct *fsp)
1488 {
1489 if (ad->ad_fsp == fsp) {
1490 return true;
1491 }
1492 ad->ad_fsp = fsp;
1493
1494 return true;
1495 }
1496
1497 static bool add_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
1498 struct stream_struct **streams,
1499 const char *name, off_t size,
1500 off_t alloc_size)
1501 {
1502 struct stream_struct *tmp;
1503
1504 tmp = talloc_realloc(mem_ctx, *streams, struct stream_struct,
1505 (*num_streams)+1);
1506 if (tmp == NULL) {
1507 return false;
1508 }
1509
1510 tmp[*num_streams].name = talloc_asprintf(tmp, "%s:$DATA", name);
1511 if (tmp[*num_streams].name == NULL) {
1512 return false;
1513 }
1514
1515 tmp[*num_streams].size = size;
1516 tmp[*num_streams].alloc_size = alloc_size;
1517
1518 *streams = tmp;
1519 *num_streams += 1;
1520 return true;
1521 }
1522
1523 static bool empty_finderinfo(const struct adouble *ad)
1524 {
1525
1526 char emptybuf[ADEDLEN_FINDERI] = {0};
1527 if (memcmp(emptybuf,
1528 ad_entry(ad, ADEID_FINDERI),
1529 ADEDLEN_FINDERI) == 0) {
1530 return true;
1531 }
1532 return false;
1533 }
1534
1535 /**
1536 * Update btime with btime from Netatalk
1537 **/
1538 static void update_btime(vfs_handle_struct *handle,
1539 struct smb_filename *smb_fname)
1540 {
1541 uint32_t t;
1542 struct timespec creation_time = {0};
1543 struct adouble *ad;
1544
1545 ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_META);
1546 if (ad == NULL) {
1547 return;
1548 }
1549 if (ad_getdate(ad, AD_DATE_UNIX | AD_DATE_CREATE, &t) != 0) {
1550 TALLOC_FREE(ad);
1551 return;
1552 }
1553 TALLOC_FREE(ad);
1554
1555 creation_time.tv_sec = convert_uint32_t_to_time_t(t);
1556 update_stat_ex_create_time(&smb_fname->st, creation_time);
1557
1558 return;
1559 }
1560
1561 /**
1562 * Map an access mask to a Netatalk single byte byte range lock
1563 **/
1564 static off_t access_to_netatalk_brl(enum apple_fork fork_type,
1565 uint32_t access_mask)
1566 {
1567 off_t offset;
1568
1569 switch (access_mask) {
1570 case FILE_READ_DATA:
1571 offset = AD_FILELOCK_OPEN_RD;
1572 break;
1573
1574 case FILE_WRITE_DATA:
1575 case FILE_APPEND_DATA:
1576 offset = AD_FILELOCK_OPEN_WR;
1577 break;
1578
1579 default:
1580 offset = AD_FILELOCK_OPEN_NONE;
1581 break;
1582 }
1583
1584 if (fork_type == APPLE_FORK_RSRC) {
1585 if (offset == AD_FILELOCK_OPEN_NONE) {
1586 offset = AD_FILELOCK_RSRC_OPEN_NONE;
1587 } else {
1588 offset += 2;
1589 }
1590 }
1591
1592 return offset;
1593 }
1594
1595 /**
1596 * Map a deny mode to a Netatalk brl
1597 **/
1598 static off_t denymode_to_netatalk_brl(enum apple_fork fork_type,
1599 uint32_t deny_mode)
1600 {
1601 off_t offset;
1602
1603 switch (deny_mode) {
1604 case DENY_READ:
1605 offset = AD_FILELOCK_DENY_RD;
1606 break;
1607
1608 case DENY_WRITE:
1609 offset = AD_FILELOCK_DENY_WR;
1610 break;
1611
1612 default:
1613 smb_panic("denymode_to_netatalk_brl: bad deny mode\n");
1614 }
1615
1616 if (fork_type == APPLE_FORK_RSRC) {
1617 offset += 2;
1618 }
1619
1620 return offset;
1621 }
1622
1623 /**
1624 * Call fcntl() with an exclusive F_GETLK request in order to
1625 * determine if there's an exisiting shared lock
1626 *
1627 * @return true if the requested lock was found or any error occured
1628 * false if the lock was not found
1629 **/
1630 static bool test_netatalk_lock(files_struct *fsp, off_t in_offset)
1631 {
1632 bool result;
1633 off_t offset = in_offset;
1634 off_t len = 1;
1635 int type = F_WRLCK;
1636 pid_t pid;
1637
1638 result = SMB_VFS_GETLOCK(fsp, &offset, &len, &type, &pid);
1639 if (result == false) {
1640 return true;
1641 }
1642
1643 if (type != F_UNLCK) {
1644 return true;
1645 }
1646
1647 return false;
1648 }
1649
1650 static NTSTATUS fruit_check_access(vfs_handle_struct *handle,
1651 files_struct *fsp,
1652 uint32_t access_mask,
1653 uint32_t deny_mode)
1654 {
1655 NTSTATUS status = NT_STATUS_OK;
1656 struct byte_range_lock *br_lck = NULL;
1657 bool open_for_reading, open_for_writing, deny_read, deny_write;
1658 off_t off;
1659
1660 /* FIXME: hardcoded data fork, add resource fork */
1661 enum apple_fork fork_type = APPLE_FORK_DATA;
1662
1663 DEBUG(10, ("fruit_check_access: %s, am: %s/%s, dm: %s/%s\n",
1664 fsp_str_dbg(fsp),
1665 access_mask & FILE_READ_DATA ? "READ" :"-",
1666 access_mask & FILE_WRITE_DATA ? "WRITE" : "-",
1667 deny_mode & DENY_READ ? "DENY_READ" : "-",
1668 deny_mode & DENY_WRITE ? "DENY_WRITE" : "-"));
1669
1670 /*
1671 * Check read access and deny read mode
1672 */
1673 if ((access_mask & FILE_READ_DATA) || (deny_mode & DENY_READ)) {
1674 /* Check access */
1675 open_for_reading = test_netatalk_lock(
1676 fsp, access_to_netatalk_brl(fork_type, FILE_READ_DATA));
1677
1678 deny_read = test_netatalk_lock(
1679 fsp, denymode_to_netatalk_brl(fork_type, DENY_READ));
1680
1681 DEBUG(10, ("read: %s, deny_write: %s\n",
1682 open_for_reading == true ? "yes" : "no",
1683 deny_read == true ? "yes" : "no"));
1684
1685 if (((access_mask & FILE_READ_DATA) && deny_read)
1686 || ((deny_mode & DENY_READ) && open_for_reading)) {
1687 return NT_STATUS_SHARING_VIOLATION;
1688 }
1689
1690 /* Set locks */
1691 if (access_mask & FILE_READ_DATA) {
1692 off = access_to_netatalk_brl(fork_type, FILE_READ_DATA);
1693 br_lck = do_lock(
1694 handle->conn->sconn->msg_ctx, fsp,
1695 fsp->op->global->open_persistent_id, 1, off,
1696 READ_LOCK, POSIX_LOCK, false,
1697 &status, NULL);
1698
1699 if (!NT_STATUS_IS_OK(status)) {
1700 return status;
1701 }
1702 TALLOC_FREE(br_lck);
1703 }
1704
1705 if (deny_mode & DENY_READ) {
1706 off = denymode_to_netatalk_brl(fork_type, DENY_READ);
1707 br_lck = do_lock(
1708 handle->conn->sconn->msg_ctx, fsp,
1709 fsp->op->global->open_persistent_id, 1, off,
1710 READ_LOCK, POSIX_LOCK, false,
1711 &status, NULL);
1712
1713 if (!NT_STATUS_IS_OK(status)) {
1714 return status;
1715 }
1716 TALLOC_FREE(br_lck);
1717 }
1718 }
1719
1720 /*
1721 * Check write access and deny write mode
1722 */
1723 if ((access_mask & FILE_WRITE_DATA) || (deny_mode & DENY_WRITE)) {
1724 /* Check access */
1725 open_for_writing = test_netatalk_lock(
1726 fsp, access_to_netatalk_brl(fork_type, FILE_WRITE_DATA));
1727
1728 deny_write = test_netatalk_lock(
1729 fsp, denymode_to_netatalk_brl(fork_type, DENY_WRITE));
1730
1731 DEBUG(10, ("write: %s, deny_write: %s\n",
1732 open_for_writing == true ? "yes" : "no",
1733 deny_write == true ? "yes" : "no"));
1734
1735 if (((access_mask & FILE_WRITE_DATA) && deny_write)
1736 || ((deny_mode & DENY_WRITE) && open_for_writing)) {
1737 return NT_STATUS_SHARING_VIOLATION;
1738 }
1739
1740 /* Set locks */
1741 if (access_mask & FILE_WRITE_DATA) {
1742 off = access_to_netatalk_brl(fork_type, FILE_WRITE_DATA);
1743 br_lck = do_lock(
1744 handle->conn->sconn->msg_ctx, fsp,
1745 fsp->op->global->open_persistent_id, 1, off,
1746 READ_LOCK, POSIX_LOCK, false,
1747 &status, NULL);
1748
1749 if (!NT_STATUS_IS_OK(status)) {
1750 return status;
1751 }
1752 TALLOC_FREE(br_lck);
1753
1754 }
1755 if (deny_mode & DENY_WRITE) {
1756 off = denymode_to_netatalk_brl(fork_type, DENY_WRITE);
1757 br_lck = do_lock(
1758 handle->conn->sconn->msg_ctx, fsp,
1759 fsp->op->global->open_persistent_id, 1, off,
1760 READ_LOCK, POSIX_LOCK, false,
1761 &status, NULL);
1762
1763 if (!NT_STATUS_IS_OK(status)) {
1764 return status;
1765 }
1766 TALLOC_FREE(br_lck);
1767 }
1768 }
1769
1770 TALLOC_FREE(br_lck);
1771
1772 return status;
1773 }
1774
1775 static NTSTATUS check_aapl(vfs_handle_struct *handle,
1776 struct smb_request *req,
1777 const struct smb2_create_blobs *in_context_blobs,
1778 struct smb2_create_blobs *out_context_blobs)
1779 {
1780 struct fruit_config_data *config;
1781 NTSTATUS status;
1782 struct smb2_create_blob *aapl = NULL;
1783 uint32_t cmd;
1784 bool ok;
1785 uint8_t p[16];
1786 DATA_BLOB blob = data_blob_talloc(req, NULL, 0);
1787 uint64_t req_bitmap, client_caps;
1788 uint64_t server_caps = SMB2_CRTCTX_AAPL_UNIX_BASED;
1789 smb_ucs2_t *model;
1790 size_t modellen;
1791
1792 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
1793 return NT_STATUS_UNSUCCESSFUL);
1794
1795 if (!config->use_aapl
1796 || in_context_blobs == NULL
1797 || out_context_blobs == NULL) {
1798 return NT_STATUS_OK;
1799 }
1800
1801 aapl = smb2_create_blob_find(in_context_blobs,
1802 SMB2_CREATE_TAG_AAPL);
1803 if (aapl == NULL) {
1804 return NT_STATUS_OK;
1805 }
1806
1807 if (aapl->data.length != 24) {
1808 DEBUG(1, ("unexpected AAPL ctxt legnth: %ju\n",
1809 (uintmax_t)aapl->data.length));
1810 return NT_STATUS_INVALID_PARAMETER;
1811 }
1812
1813 cmd = IVAL(aapl->data.data, 0);
1814 if (cmd != SMB2_CRTCTX_AAPL_SERVER_QUERY) {
1815 DEBUG(1, ("unsupported AAPL cmd: %d\n", cmd));
1816 return NT_STATUS_INVALID_PARAMETER;
1817 }
1818
1819 req_bitmap = BVAL(aapl->data.data, 8);
1820 client_caps = BVAL(aapl->data.data, 16);
1821
1822 SIVAL(p, 0, SMB2_CRTCTX_AAPL_SERVER_QUERY);
1823 SIVAL(p, 4, 0);
1824 SBVAL(p, 8, req_bitmap);
1825 ok = data_blob_append(req, &blob, p, 16);
1826 if (!ok) {
1827 return NT_STATUS_UNSUCCESSFUL;
1828 }
1829
1830 if (req_bitmap & SMB2_CRTCTX_AAPL_SERVER_CAPS) {
1831 if ((client_caps & SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR) &&
1832 (handle->conn->tcon->compat->fs_capabilities & FILE_NAMED_STREAMS)) {
1833 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR;
1834 config->readdir_attr_enabled = true;
1835 }
1836
1837 if (config->use_copyfile) {
1838 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_OSX_COPYFILE;
1839 config->copyfile_enabled = true;
1840 }
1841
1842 /*
1843 * The client doesn't set the flag, so we can't check
1844 * for it and just set it unconditionally
1845 */
1846 if (config->unix_info_enabled) {
1847 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_NFS_ACE;
1848 }
1849
1850 SBVAL(p, 0, server_caps);
1851 ok = data_blob_append(req, &blob, p, 8);
1852 if (!ok) {
1853 return NT_STATUS_UNSUCCESSFUL;
1854 }
1855 }
1856
1857 if (req_bitmap & SMB2_CRTCTX_AAPL_VOLUME_CAPS) {
1858 SBVAL(p, 0,
1859 lp_case_sensitive(SNUM(handle->conn->tcon->compat)) ?
1860 SMB2_CRTCTX_AAPL_CASE_SENSITIVE : 0);
1861 ok = data_blob_append(req, &blob, p, 8);
1862 if (!ok) {
1863 return NT_STATUS_UNSUCCESSFUL;
1864 }
1865 }
1866
1867 if (req_bitmap & SMB2_CRTCTX_AAPL_MODEL_INFO) {
1868 ok = convert_string_talloc(req,
1869 CH_UNIX, CH_UTF16LE,
1870 "Samba", strlen("Samba"),
1871 &model, &modellen);
1872 if (!ok) {
1873 return NT_STATUS_UNSUCCESSFUL;
1874 }
1875
1876 SIVAL(p, 0, 0);
1877 SIVAL(p + 4, 0, modellen);
1878 ok = data_blob_append(req, &blob, p, 8);
1879 if (!ok) {
1880 talloc_free(model);
1881 return NT_STATUS_UNSUCCESSFUL;
1882 }
1883
1884 ok = data_blob_append(req, &blob, model, modellen);
1885 talloc_free(model);
1886 if (!ok) {
1887 return NT_STATUS_UNSUCCESSFUL;
1888 }
1889 }
1890
1891 status = smb2_create_blob_add(out_context_blobs,
1892 out_context_blobs,
1893 SMB2_CREATE_TAG_AAPL,
1894 blob);
1895
1896 return status;
1897 }
1898
1899 static NTSTATUS readdir_attr_macmeta(struct vfs_handle_struct *handle,
1900 const struct smb_filename *smb_fname,
1901 struct readdir_attr_data *attr_data)
1902 {
1903 NTSTATUS status = NT_STATUS_OK;
1904 uint32_t date_added;
1905 struct adouble *ad = NULL;
1906 struct fruit_config_data *config = NULL;
1907
1908 SMB_VFS_HANDLE_GET_DATA(handle, config,
1909 struct fruit_config_data,
1910 return NT_STATUS_UNSUCCESSFUL);
1911
1912
1913 /* Ensure we return a default value in the creation_date field */
1914 RSIVAL(&attr_data->attr_data.aapl.finder_info, 12, AD_DATE_START);
1915
1916 /*
1917 * Resource fork length
1918 */
1919
1920 if (config->readdir_attr_rsize) {
1921 ad = ad_get(talloc_tos(), handle, smb_fname->base_name,
1922 ADOUBLE_RSRC);
1923 if (ad) {
1924 attr_data->attr_data.aapl.rfork_size = ad_getentrylen(
1925 ad, ADEID_RFORK);
1926 TALLOC_FREE(ad);
1927 }
1928 }
1929
1930 /*
1931 * FinderInfo
1932 */
1933
1934 if (config->readdir_attr_finder_info) {
1935 ad = ad_get(talloc_tos(), handle, smb_fname->base_name,
1936 ADOUBLE_META);
1937 if (ad) {
1938 if (S_ISREG(smb_fname->st.st_ex_mode)) {
1939 /* finder_type */
1940 memcpy(&attr_data->attr_data.aapl.finder_info[0],
1941 ad_entry(ad, ADEID_FINDERI), 4);
1942
1943 /* finder_creator */
1944 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 4,
1945 ad_entry(ad, ADEID_FINDERI) + 4, 4);
1946 }
1947
1948 /* finder_flags */
1949 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 8,
1950 ad_entry(ad, ADEID_FINDERI) + 8, 2);
1951
1952 /* finder_ext_flags */
1953 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 10,
1954 ad_entry(ad, ADEID_FINDERI) + 24, 2);
1955
1956 /* creation date */
1957 date_added = convert_time_t_to_uint32_t(
1958 smb_fname->st.st_ex_btime.tv_sec - AD_DATE_DELTA);
1959 RSIVAL(&attr_data->attr_data.aapl.finder_info[0], 12, date_added);
1960
1961 TALLOC_FREE(ad);
1962 }
1963 }
1964
1965 TALLOC_FREE(ad);
1966 return status;
1967 }
1968
1969 /* Search MS NFS style ACE with UNIX mode */
1970 static NTSTATUS check_ms_nfs(vfs_handle_struct *handle,
1971 files_struct *fsp,
1972 const struct security_descriptor *psd,
1973 mode_t *pmode,
1974 bool *pdo_chmod)
1975 {
1976 int i;
1977 struct fruit_config_data *config = NULL;
1978
1979 *pdo_chmod = false;
1980
1981 SMB_VFS_HANDLE_GET_DATA(handle, config,
1982 struct fruit_config_data,
1983 return NT_STATUS_UNSUCCESSFUL);
1984
1985 if (psd->dacl == NULL || !config->unix_info_enabled) {
1986 return NT_STATUS_OK;
1987 }
1988
1989 for (i = 0; i < psd->dacl->num_aces; i++) {
1990 if (dom_sid_compare_domain(
1991 &global_sid_Unix_NFS_Mode,
1992 &psd->dacl->aces[i].trustee) == 0) {
1993 *pmode = (mode_t)psd->dacl->aces[i].trustee.sub_auths[2];
1994 *pmode &= (S_IRWXU | S_IRWXG | S_IRWXO);
1995 *pdo_chmod = true;
1996
1997 DEBUG(10, ("MS NFS chmod request %s, %04o\n",
1998 fsp_str_dbg(fsp), (unsigned)(*pmode)));
1999 break;
2000 }
2001 }
2002
2003 return NT_STATUS_OK;
2004 }
2005
2006 /****************************************************************************
2007 * VFS ops
2008 ****************************************************************************/
2009
2010 static int fruit_connect(vfs_handle_struct *handle,
2011 const char *service,
2012 const char *user)
2013 {
2014 int rc;
2015 char *list = NULL, *newlist = NULL;
2016 struct fruit_config_data *config;
2017
2018 DEBUG(10, ("fruit_connect\n"));
2019
2020 rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
2021 if (rc < 0) {
2022 return rc;
2023 }
2024
2025 rc = init_fruit_config(handle);
2026 if (rc != 0) {
2027 return rc;
2028 }
2029
2030 SMB_VFS_HANDLE_GET_DATA(handle, config,
2031 struct fruit_config_data, return -1);
2032
2033 if (config->veto_appledouble) {
2034 list = lp_veto_files(talloc_tos(), SNUM(handle->conn));
2035
2036 if (list) {
2037 if (strstr(list, "/" ADOUBLE_NAME_PREFIX "*/") == NULL) {
2038 newlist = talloc_asprintf(
2039 list,
2040 "%s/" ADOUBLE_NAME_PREFIX "*/",
2041 list);
2042 lp_do_parameter(SNUM(handle->conn),
2043 "veto files",
2044 newlist);
2045 }
2046 } else {
2047 lp_do_parameter(SNUM(handle->conn),
2048 "veto files",
2049 "/" ADOUBLE_NAME_PREFIX "*/");
2050 }
2051
2052 TALLOC_FREE(list);
2053 }
2054
2055 if (config->encoding == FRUIT_ENC_NATIVE) {
2056 lp_do_parameter(
2057 SNUM(handle->conn),
2058 "catia:mappings",
2059 "0x01:0xf001,0x02:0xf002,0x03:0xf003,0x04:0xf004,"
2060 "0x05:0xf005,0x06:0xf006,0x07:0xf007,0x08:0xf008,"
2061 "0x09:0xf009,0x0a:0xf00a,0x0b:0xf00b,0x0c:0xf00c,"
2062 "0x0d:0xf00d,0x0e:0xf00e,0x0f:0xf00f,0x10:0xf010,"
2063 "0x11:0xf011,0x12:0xf012,0x13:0xf013,0x14:0xf014,"
2064 "0x15:0xf015,0x16:0xf016,0x17:0xf017,0x18:0xf018,"
2065 "0x19:0xf019,0x1a:0xf01a,0x1b:0xf01b,0x1c:0xf01c,"
2066 "0x1d:0xf01d,0x1e:0xf01e,0x1f:0xf01f,"
2067 "0x22:0xf020,0x2a:0xf021,0x3a:0xf022,0x3c:0xf023,"
2068 "0x3e:0xf024,0x3f:0xf025,0x5c:0xf026,0x7c:0xf027,"
2069 "0x0d:0xf00d");
2070 }
2071
2072 return rc;
2073 }
2074
2075 static int fruit_open_meta(vfs_handle_struct *handle,
2076 struct smb_filename *smb_fname,
2077 files_struct *fsp, int flags, mode_t mode)
2078 {
2079 int rc = 0;
2080 struct fruit_config_data *config = NULL;
2081 struct smb_filename *smb_fname_base = NULL;
2082 int baseflags;
2083 int hostfd = -1;
2084 struct adouble *ad = NULL;
2085
2086 DEBUG(10, ("fruit_open_meta for %s\n", smb_fname_str_dbg(smb_fname)));
2087
2088 SMB_VFS_HANDLE_GET_DATA(handle, config,
2089 struct fruit_config_data, return -1);
2090
2091 if (config->meta == FRUIT_META_STREAM) {
2092 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
2093 }
2094
2095 /* Create an smb_filename with stream_name == NULL. */
2096 smb_fname_base = synthetic_smb_fname(talloc_tos(),
2097 smb_fname->base_name, NULL, NULL);
2098
2099 if (smb_fname_base == NULL) {
2100 errno = ENOMEM;
2101 rc = -1;
2102 goto exit;
2103 }
2104
2105 /*
2106 * We use baseflags to turn off nasty side-effects when opening the
2107 * underlying file.
2108 */
2109 baseflags = flags;
2110 baseflags &= ~O_TRUNC;
2111 baseflags &= ~O_EXCL;
2112 baseflags &= ~O_CREAT;
2113
2114 hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
2115 baseflags, mode);
2116
2117 /*
2118 * It is legit to open a stream on a directory, but the base
2119 * fd has to be read-only.
2120 */
2121 if ((hostfd == -1) && (errno == EISDIR)) {
2122 baseflags &= ~O_ACCMODE;
2123 baseflags |= O_RDONLY;
2124 hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
2125 baseflags, mode);
2126 }
2127
2128 TALLOC_FREE(smb_fname_base);
2129
2130 if (hostfd == -1) {
2131 rc = -1;
2132 goto exit;
2133 }
2134
2135 if (flags & (O_CREAT | O_TRUNC)) {
2136 /*
2137 * The attribute does not exist or needs to be truncated,
2138 * create an AppleDouble EA
2139 */
2140 ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
2141 handle, ADOUBLE_META, fsp);
2142 if (ad == NULL) {
2143 rc = -1;
2144 goto exit;
2145 }
2146
2147 rc = ad_write(ad, smb_fname->base_name);
2148 if (rc != 0) {
2149 rc = -1;
2150 goto exit;
2151 }
2152 } else {
2153 ad = ad_alloc(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
2154 handle, ADOUBLE_META, fsp);
2155 if (ad == NULL) {
2156 rc = -1;
2157 goto exit;
2158 }
2159 if (ad_read(ad, smb_fname->base_name) == -1) {
2160 rc = -1;
2161 goto exit;
2162 }
2163 }
2164
2165 exit:
2166 DEBUG(10, ("fruit_open meta rc=%d, fd=%d\n", rc, hostfd));
2167 if (rc != 0) {
2168 int saved_errno = errno;
2169 if (hostfd >= 0) {
2170 /*
2171 * BUGBUGBUG -- we would need to call
2172 * fd_close_posix here, but we don't have a
2173 * full fsp yet
2174 */
2175 fsp->fh->fd = hostfd;
2176 SMB_VFS_CLOSE(fsp);
2177 }
2178 hostfd = -1;
2179 errno = saved_errno;
2180 }
2181 return hostfd;
2182 }
2183
2184 static int fruit_open_rsrc(vfs_handle_struct *handle,
2185 struct smb_filename *smb_fname,
2186 files_struct *fsp, int flags, mode_t mode)
2187 {
2188 int rc = 0;
2189 struct fruit_config_data *config = NULL;
2190 struct adouble *ad = NULL;
2191 struct smb_filename *smb_fname_base = NULL;
2192 char *adpath = NULL;
2193 int hostfd = -1;
2194
2195 DEBUG(10, ("fruit_open_rsrc for %s\n", smb_fname_str_dbg(smb_fname)));
2196
2197 SMB_VFS_HANDLE_GET_DATA(handle, config,
2198 struct fruit_config_data, return -1);
2199
2200 switch (config->rsrc) {
2201 case FRUIT_RSRC_STREAM:
2202 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
2203 case FRUIT_RSRC_XATTR:
2204 #ifdef HAVE_ATTROPEN
2205 hostfd = attropen(smb_fname->base_name,
2206 AFPRESOURCE_EA_NETATALK, flags, mode);
2207 if (hostfd == -1) {
2208 return -1;
2209 }
2210 ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
2211 handle, ADOUBLE_RSRC, fsp);
2212 if (ad == NULL) {
2213 rc = -1;
2214 goto exit;
2215 }
2216 goto exit;
2217 #else
2218 errno = ENOTSUP;
2219 return -1;
2220 #endif
2221 default:
2222 break;
2223 }
2224
2225 if (!(flags & O_CREAT) && !VALID_STAT(smb_fname->st)) {
2226 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
2227 if (rc != 0) {
2228 rc = -1;
2229 goto exit;
2230 }
2231 }
2232
2233 if (VALID_STAT(smb_fname->st) && S_ISDIR(smb_fname->st.st_ex_mode)) {
2234 /* sorry, but directories don't habe a resource fork */
2235 rc = -1;
2236 goto exit;
2237 }
2238
2239 rc = adouble_path(talloc_tos(), smb_fname->base_name, &adpath);
2240 if (rc != 0) {
2241 goto exit;
2242 }
2243
2244 /* Create an smb_filename with stream_name == NULL. */
2245 smb_fname_base = synthetic_smb_fname(talloc_tos(),
2246 adpath, NULL, NULL);
2247 if (smb_fname_base == NULL) {
2248 errno = ENOMEM;
2249 rc = -1;
2250 goto exit;
2251 }
2252
2253 /* Sanitize flags */
2254 if (flags & O_WRONLY) {
2255 /* We always need read access for the metadata header too */
2256 flags &= ~O_WRONLY;
2257 flags |= O_RDWR;
2258 }
2259
2260 hostfd = SMB_VFS_OPEN(handle->conn, smb_fname_base, fsp,
2261 flags, mode);
2262 if (hostfd == -1) {
2263 rc = -1;
2264 goto exit;
2265 }
2266
2267 /* REVIEW: we need this in ad_write() */
2268 fsp->fh->fd = hostfd;
2269
2270 if (flags & (O_CREAT | O_TRUNC)) {
2271 ad = ad_init(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
2272 handle, ADOUBLE_RSRC, fsp);
2273 if (ad == NULL) {
2274 rc = -1;
2275 goto exit;
2276 }
2277 rc = ad_write(ad, smb_fname->base_name);
2278 if (rc != 0) {
2279 rc = -1;
2280 goto exit;
2281 }
2282 } else {
2283 ad = ad_alloc(VFS_MEMCTX_FSP_EXTENSION(handle, fsp),
2284 handle, ADOUBLE_RSRC, fsp);
2285 if (ad == NULL) {
2286 rc = -1;
2287 goto exit;
2288 }
2289 if (ad_read(ad, smb_fname->base_name) == -1) {
2290 rc = -1;
2291 goto exit;
2292 }
2293 }
2294
2295 exit:
2296
2297 TALLOC_FREE(adpath);
2298 TALLOC_FREE(smb_fname_base);
2299
2300 DEBUG(10, ("fruit_open resource fork: rc=%d, fd=%d\n", rc, hostfd));
2301 if (rc != 0) {
2302 int saved_errno = errno;
2303 if (hostfd >= 0) {
2304 /*
2305 * BUGBUGBUG -- we would need to call
2306 * fd_close_posix here, but we don't have a
2307 * full fsp yet
2308 */
2309 fsp->fh->fd = hostfd;
2310 SMB_VFS_CLOSE(fsp);
2311 }
2312 hostfd = -1;
2313 errno = saved_errno;
2314 }
2315 return hostfd;
2316 }
2317
2318 static int fruit_open(vfs_handle_struct *handle,
2319 struct smb_filename *smb_fname,
2320 files_struct *fsp, int flags, mode_t mode)
2321 {
2322 DEBUG(10, ("fruit_open called for %s\n",
2323 smb_fname_str_dbg(smb_fname)));
2324
2325 if (!is_ntfs_stream_smb_fname(smb_fname)) {
2326 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
2327 }
2328
2329 if (is_afpinfo_stream(smb_fname)) {
2330 return fruit_open_meta(handle, smb_fname, fsp, flags, mode);
2331 } else if (is_afpresource_stream(smb_fname)) {
2332 return fruit_open_rsrc(handle, smb_fname, fsp, flags, mode);
2333 }
2334
2335 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
2336 }
2337
2338 static int fruit_rename(struct vfs_handle_struct *handle,
2339 const struct smb_filename *smb_fname_src,
2340 const struct smb_filename *smb_fname_dst)
2341 {
2342 int rc = -1;
2343 char *src_adouble_path = NULL;
2344 char *dst_adouble_path = NULL;
2345 struct fruit_config_data *config = NULL;
2346
2347 rc = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
2348
2349 if (!VALID_STAT(smb_fname_src->st)
2350 || !S_ISREG(smb_fname_src->st.st_ex_mode)) {
2351 return rc;
2352 }
2353
2354 SMB_VFS_HANDLE_GET_DATA(handle, config,
2355 struct fruit_config_data, return -1);
2356
2357 if (config->rsrc == FRUIT_RSRC_XATTR) {
2358 return rc;
2359 }
2360
2361 rc = adouble_path(talloc_tos(), smb_fname_src->base_name,
2362 &src_adouble_path);
2363 if (rc != 0) {
2364 goto done;
2365 }
2366 rc = adouble_path(talloc_tos(), smb_fname_dst->base_name,
2367 &dst_adouble_path);
2368 if (rc != 0) {
2369 goto done;
2370 }
2371
2372 DEBUG(10, ("fruit_rename: %s -> %s\n",
2373 src_adouble_path, dst_adouble_path));
2374
2375 rc = rename(src_adouble_path, dst_adouble_path);
2376 if (errno == ENOENT) {
2377 rc = 0;
2378 }
2379
2380 TALLOC_FREE(src_adouble_path);
2381 TALLOC_FREE(dst_adouble_path);
2382
2383 done:
2384 return rc;
2385 }
2386
2387 static int fruit_unlink(vfs_handle_struct *handle,
2388 const struct smb_filename *smb_fname)
2389 {
2390 int rc = -1;
2391 struct fruit_config_data *config = NULL;
2392 char *adp = NULL;
2393
2394 if (!is_ntfs_stream_smb_fname(smb_fname)) {
2395 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
2396 }
2397
2398 SMB_VFS_HANDLE_GET_DATA(handle, config,
2399 struct fruit_config_data, return -1);
2400
2401 if (is_afpinfo_stream(smb_fname)) {
2402 if (config->meta == FRUIT_META_STREAM) {
2403 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
2404 } else {
2405 rc = SMB_VFS_REMOVEXATTR(handle->conn,
2406 smb_fname->base_name,
2407 AFPINFO_EA_NETATALK);
2408 }
2409 } else if (is_afpresource_stream(smb_fname)) {
2410 if (config->rsrc == FRUIT_RSRC_ADFILE) {
2411 rc = adouble_path(talloc_tos(),
2412 smb_fname->base_name, &adp);
2413 if (rc != 0) {
2414 return -1;
2415 }
2416 /* FIXME: direct unlink(), missing smb_fname */
2417 rc = unlink(adp);
2418 if ((rc == -1) && (errno == ENOENT)) {
2419 rc = 0;
2420 }
2421 } else {
2422 rc = SMB_VFS_REMOVEXATTR(handle->conn,
2423 smb_fname->base_name,
2424 AFPRESOURCE_EA_NETATALK);
2425 }
2426 } else {
2427 rc = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
2428 }
2429
2430 TALLOC_FREE(adp);
2431 return rc;
2432 }
2433
2434 static int fruit_chmod(vfs_handle_struct *handle,
2435 const char *path,
2436 mode_t mode)
2437 {
2438 int rc = -1;
2439 char *adp = NULL;
2440 struct fruit_config_data *config = NULL;
2441 SMB_STRUCT_STAT sb;
2442
2443 rc = SMB_VFS_NEXT_CHMOD(handle, path, mode);
2444 if (rc != 0) {
2445 return rc;
2446 }
2447
2448 SMB_VFS_HANDLE_GET_DATA(handle, config,
2449 struct fruit_config_data, return -1);
2450
2451 if (config->rsrc == FRUIT_RSRC_XATTR) {
2452 return 0;
2453 }
2454
2455 /* FIXME: direct sys_lstat(), missing smb_fname */
2456 rc = sys_lstat(path, &sb, false);
2457 if (rc != 0 || !S_ISREG(sb.st_ex_mode)) {
2458 return rc;
2459 }
2460
2461 rc = adouble_path(talloc_tos(), path, &adp);
2462 if (rc != 0) {
2463 return -1;
2464 }
2465
2466 DEBUG(10, ("fruit_chmod: %s\n", adp));
2467
2468 rc = SMB_VFS_NEXT_CHMOD(handle, adp, mode);
2469 if (errno == ENOENT) {
2470 rc = 0;
2471 }
2472
2473 TALLOC_FREE(adp);
2474 return rc;
2475 }
2476
2477 static int fruit_chown(vfs_handle_struct *handle,
2478 const char *path,
2479 uid_t uid,
2480 gid_t gid)
2481 {
2482 int rc = -1;
2483 char *adp = NULL;
2484 struct fruit_config_data *config = NULL;
2485 SMB_STRUCT_STAT sb;
2486
2487 rc = SMB_VFS_NEXT_CHOWN(handle, path, uid, gid);
2488 if (rc != 0) {
2489 return rc;
2490 }
2491
2492 SMB_VFS_HANDLE_GET_DATA(handle, config,
2493 struct fruit_config_data, return -1);
2494
2495 if (config->rsrc == FRUIT_RSRC_XATTR) {
2496 return rc;
2497 }
2498
2499 /* FIXME: direct sys_lstat(), missing smb_fname */
2500 rc = sys_lstat(path, &sb, false);
2501 if (rc != 0 || !S_ISREG(sb.st_ex_mode)) {
2502 return rc;
2503 }
2504
2505 rc = adouble_path(talloc_tos(), path, &adp);
2506 if (rc != 0) {
2507 goto done;
2508 }
2509
2510 DEBUG(10, ("fruit_chown: %s\n", adp));
2511
2512 rc = SMB_VFS_NEXT_CHOWN(handle, adp, uid, gid);
2513 if (errno == ENOENT) {
2514 rc = 0;
2515 }
2516
2517 done:
2518 TALLOC_FREE(adp);
2519 return rc;
2520 }
2521
2522 static int fruit_rmdir(struct vfs_handle_struct *handle, const char *path)
2523 {
2524 DIR *dh = NULL;
2525 struct dirent *de;
2526 struct fruit_config_data *config;
2527
2528 SMB_VFS_HANDLE_GET_DATA(handle, config,
2529 struct fruit_config_data, return -1);
2530
2531 if (!handle->conn->cwd || !path || (config->rsrc == FRUIT_RSRC_XATTR)) {
2532 goto exit_rmdir;
2533 }
2534
2535 /*
2536 * Due to there is no way to change bDeleteVetoFiles variable
2537 * from this module, need to clean up ourselves
2538 */
2539 dh = opendir(path);
2540 if (dh == NULL) {
2541 goto exit_rmdir;
2542 }
2543
2544 while ((de = readdir(dh)) != NULL) {
2545 if ((strncmp(de->d_name,
2546 ADOUBLE_NAME_PREFIX,
2547 strlen(ADOUBLE_NAME_PREFIX))) == 0) {
2548 char *p = talloc_asprintf(talloc_tos(),
2549 "%s/%s",
2550 path, de->d_name);
2551 if (p == NULL) {
2552 goto exit_rmdir;
2553 }
2554 DEBUG(10, ("fruit_rmdir: delete %s\n", p));
2555 (void)unlink(p);
2556 TALLOC_FREE(p);
2557 }
2558 }
2559
2560 exit_rmdir:
2561 if (dh) {
2562 closedir(dh);
2563 }
2564 return SMB_VFS_NEXT_RMDIR(handle, path);
2565 }
2566
2567 static ssize_t fruit_pread(vfs_handle_struct *handle,
2568 files_struct *fsp, void *data,
2569 size_t n, off_t offset)
2570 {
2571 int rc = 0;
2572 struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
2573 handle, fsp);
2574 struct fruit_config_data *config = NULL;
2575 AfpInfo *ai = NULL;
2576 ssize_t len;
2577 char *name = NULL;
2578 char *tmp_base_name = NULL;
2579 NTSTATUS status;
2580
2581 DEBUG(10, ("fruit_pread: offset=%d, size=%d\n", (int)offset, (int)n));
2582
2583 if (!fsp->base_fsp) {
2584 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2585 }
2586
2587 SMB_VFS_HANDLE_GET_DATA(handle, config,
2588 struct fruit_config_data, return -1);
2589
2590 /* fsp_name is not converted with vfs_catia */
2591 tmp_base_name = fsp->base_fsp->fsp_name->base_name;
2592 status = SMB_VFS_TRANSLATE_NAME(handle->conn,
2593 fsp->base_fsp->fsp_name->base_name,
2594 vfs_translate_to_unix,
2595 talloc_tos(), &name);
2596 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
2597 name = talloc_strdup(talloc_tos(), tmp_base_name);
2598 if (name == NULL) {
2599 rc = -1;
2600 goto exit;
2601 }
2602 } else if (!NT_STATUS_IS_OK(status)) {
2603 errno = map_errno_from_nt_status(status);
2604 rc = -1;
2605 goto exit;
2606 }
2607 fsp->base_fsp->fsp_name->base_name = name;
2608
2609 if (ad == NULL) {
2610 len = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
2611 if (len == -1) {
2612 rc = -1;
2613 goto exit;
2614 }
2615 goto exit;
2616 }
2617
2618 if (!fruit_fsp_recheck(ad, fsp)) {
2619 rc = -1;
2620 goto exit;
2621 }
2622
2623 if (ad->ad_type == ADOUBLE_META) {
2624 char afpinfo_buf[AFP_INFO_SIZE];
2625 size_t to_return;
2626
2627 if ((offset < 0) || (offset >= AFP_INFO_SIZE)) {
2628 len = 0;
2629 rc = 0;
2630 goto exit;
2631 }
2632
2633 to_return = AFP_INFO_SIZE - offset;
2634
2635 ai = afpinfo_new(talloc_tos());
2636 if (ai == NULL) {
2637 rc = -1;
2638 goto exit;
2639 }
2640
2641 len = ad_read(ad, fsp->base_fsp->fsp_name->base_name);
2642 if (len == -1) {
2643 rc = -1;
2644 goto exit;
2645 }
2646
2647 memcpy(&ai->afpi_FinderInfo[0],
2648 ad_entry(ad, ADEID_FINDERI),
2649 ADEDLEN_FINDERI);
2650 len = afpinfo_pack(ai, afpinfo_buf);
2651 if (len != AFP_INFO_SIZE) {
2652 rc = -1;
2653 goto exit;
2654 }
2655
2656 memcpy(data, afpinfo_buf + offset, to_return);
2657 len = to_return;
2658 } else {
2659 len = SMB_VFS_NEXT_PREAD(
2660 handle, fsp, data, n,
2661 offset + ad_getentryoff(ad, ADEID_RFORK));
2662 if (len == -1) {
2663 rc = -1;
2664 goto exit;
2665 }
2666 }
2667 exit:
2668 fsp->base_fsp->fsp_name->base_name = tmp_base_name;
2669 TALLOC_FREE(name);
2670 TALLOC_FREE(ai);
2671 if (rc != 0) {
2672 len = -1;
2673 }
2674 DEBUG(10, ("fruit_pread: rc=%d, len=%zd\n", rc, len));
2675 return len;
2676 }
2677
2678 static ssize_t fruit_pwrite(vfs_handle_struct *handle,
2679 files_struct *fsp, const void *data,
2680 size_t n, off_t offset)
2681 {
2682 int rc = 0;
2683 struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
2684 handle, fsp);
2685 struct fruit_config_data *config = NULL;
2686 AfpInfo *ai = NULL;
2687 ssize_t len;
2688 char *name = NULL;
2689 char *tmp_base_name = NULL;
2690 NTSTATUS status;
2691
2692 DEBUG(10, ("fruit_pwrite: offset=%d, size=%d\n", (int)offset, (int)n));
2693
2694 if (!fsp->base_fsp) {
2695 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2696 }
2697
2698 SMB_VFS_HANDLE_GET_DATA(handle, config,
2699 struct fruit_config_data, return -1);
2700
2701 tmp_base_name = fsp->base_fsp->fsp_name->base_name;
2702 status = SMB_VFS_TRANSLATE_NAME(handle->conn,
2703 fsp->base_fsp->fsp_name->base_name,
2704 vfs_translate_to_unix,
2705 talloc_tos(), &name);
2706 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
2707 name = talloc_strdup(talloc_tos(), tmp_base_name);
2708 if (name == NULL) {
2709 rc = -1;
2710 goto exit;
2711 }
2712 } else if (!NT_STATUS_IS_OK(status)) {
2713 errno = map_errno_from_nt_status(status);
2714 rc = -1;
2715 goto exit;
2716 }
2717 fsp->base_fsp->fsp_name->base_name = name;
2718
2719 if (ad == NULL) {
2720 len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
2721 if (len != n) {
2722 rc = -1;
2723 goto exit;
2724 }
2725 goto exit;
2726 }
2727
2728 if (!fruit_fsp_recheck(ad, fsp)) {
2729 rc = -1;
2730 goto exit;
2731 }
2732
2733 if (ad->ad_type == ADOUBLE_META) {
2734 if (n != AFP_INFO_SIZE || offset != 0) {
2735 DEBUG(1, ("unexpected offset=%jd or size=%jd\n",
2736 (intmax_t)offset, (intmax_t)n));
2737 rc = -1;
2738 goto exit;
2739 }
2740 ai = afpinfo_unpack(talloc_tos(), data);
2741 if (ai == NULL) {
2742 rc = -1;
2743 goto exit;
2744 }
2745 memcpy(ad_entry(ad, ADEID_FINDERI),
2746 &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
2747 rc = ad_write(ad, name);
2748 } else {
2749 len = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n,
2750 offset + ad_getentryoff(ad, ADEID_RFORK));
2751 if (len != n) {
2752 rc = -1;
2753 goto exit;
2754 }
2755
2756 if (config->rsrc == FRUIT_RSRC_ADFILE) {
2757 rc = ad_read(ad, name);
2758 if (rc == -1) {
2759 goto exit;
2760 }
2761 rc = 0;
2762
2763 if ((len + offset) > ad_getentrylen(ad, ADEID_RFORK)) {
2764 ad_setentrylen(ad, ADEID_RFORK, len + offset);
2765 rc = ad_write(ad, name);
2766 }
2767 }
2768 }
2769
2770 exit:
2771 fsp->base_fsp->fsp_name->base_name = tmp_base_name;
2772 TALLOC_FREE(name);
2773 TALLOC_FREE(ai);
2774 if (rc != 0) {
2775 return -1;
2776 }
2777 return n;
2778 }
2779
2780 /**
2781 * Helper to stat/lstat the base file of an smb_fname.
2782 */
2783 static int fruit_stat_base(vfs_handle_struct *handle,
2784 struct smb_filename *smb_fname,
2785 bool follow_links)
2786 {
2787 char *tmp_stream_name;
2788 int rc;
2789
2790 tmp_stream_name = smb_fname->stream_name;
2791 smb_fname->stream_name = NULL;
2792 if (follow_links) {
2793 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
2794 } else {
2795 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
2796 }
2797 smb_fname->stream_name = tmp_stream_name;
2798 return rc;
2799 }
2800
2801 static int fruit_stat_meta(vfs_handle_struct *handle,
2802 struct smb_filename *smb_fname,
2803 bool follow_links)
2804 {
2805 /* Populate the stat struct with info from the base file. */
2806 if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
2807 return -1;
2808 }
2809 smb_fname->st.st_ex_size = AFP_INFO_SIZE;
2810 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
2811 smb_fname->stream_name);
2812 return 0;
2813 }
2814
2815 static int fruit_stat_rsrc(vfs_handle_struct *handle,
2816 struct smb_filename *smb_fname,
2817 bool follow_links)
2818
2819 {
2820 struct adouble *ad = NULL;
2821
2822 DEBUG(10, ("fruit_stat_rsrc called for %s\n",
2823 smb_fname_str_dbg(smb_fname)));
2824
2825 ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_RSRC);
2826 if (ad == NULL) {
2827 errno = ENOENT;
2828 return -1;
2829 }
2830
2831 /* Populate the stat struct with info from the base file. */
2832 if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
2833 TALLOC_FREE(ad);
2834 return -1;
2835 }
2836
2837 smb_fname->st.st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
2838 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
2839 smb_fname->stream_name);
2840 TALLOC_FREE(ad);
2841 return 0;
2842 }
2843
2844 static int fruit_stat(vfs_handle_struct *handle,
2845 struct smb_filename *smb_fname)
2846 {
2847 int rc = -1;
2848
2849 DEBUG(10, ("fruit_stat called for %s\n",
2850 smb_fname_str_dbg(smb_fname)));
2851
2852 if (!is_ntfs_stream_smb_fname(smb_fname)
2853 || is_ntfs_default_stream_smb_fname(smb_fname)) {
2854 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
2855 if (rc == 0) {
2856 update_btime(handle, smb_fname);
2857 }
2858 return rc;
2859 }
2860
2861 /*
2862 * Note if lp_posix_paths() is true, we can never
2863 * get here as is_ntfs_stream_smb_fname() is
2864 * always false. So we never need worry about
2865 * not following links here.
2866 */
2867
2868 if (is_afpinfo_stream(smb_fname)) {
2869 rc = fruit_stat_meta(handle, smb_fname, true);
2870 } else if (is_afpresource_stream(smb_fname)) {
2871 rc = fruit_stat_rsrc(handle, smb_fname, true);
2872 } else {
2873 return SMB_VFS_NEXT_STAT(handle, smb_fname);
2874 }
2875
2876 if (rc == 0) {
2877 update_btime(handle, smb_fname);
2878 smb_fname->st.st_ex_mode &= ~S_IFMT;
2879 smb_fname->st.st_ex_mode |= S_IFREG;
2880 smb_fname->st.st_ex_blocks =
2881 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
2882 }
2883 return rc;
2884 }
2885
2886 static int fruit_lstat(vfs_handle_struct *handle,
2887 struct smb_filename *smb_fname)
2888 {
2889 int rc = -1;
2890
2891 DEBUG(10, ("fruit_lstat called for %s\n",
2892 smb_fname_str_dbg(smb_fname)));
2893
2894 if (!is_ntfs_stream_smb_fname(smb_fname)
2895 || is_ntfs_default_stream_smb_fname(smb_fname)) {
2896 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
2897 if (rc == 0) {
2898 update_btime(handle, smb_fname);
2899 }
2900 return rc;
2901 }
2902
2903 if (is_afpinfo_stream(smb_fname)) {
2904 rc = fruit_stat_meta(handle, smb_fname, false);
2905 } else if (is_afpresource_stream(smb_fname)) {
2906 rc = fruit_stat_rsrc(handle, smb_fname, false);
2907 } else {
2908 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
2909 }
2910
2911 if (rc == 0) {
2912 update_btime(handle, smb_fname);
2913 smb_fname->st.st_ex_mode &= ~S_IFMT;
2914 smb_fname->st.st_ex_mode |= S_IFREG;
2915 smb_fname->st.st_ex_blocks =
2916 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
2917 }
2918 return rc;
2919 }
2920
2921 static int fruit_fstat_meta(vfs_handle_struct *handle,
2922 files_struct *fsp,
2923 SMB_STRUCT_STAT *sbuf)
2924 {
2925 DEBUG(10, ("fruit_fstat_meta called for %s\n",
2926 smb_fname_str_dbg(fsp->base_fsp->fsp_name)));
2927
2928 /* Populate the stat struct with info from the base file. */
2929 if (fruit_stat_base(handle, fsp->base_fsp->fsp_name, false) == -1) {
2930 return -1;
2931 }
2932 *sbuf = fsp->base_fsp->fsp_name->st;
2933 sbuf->st_ex_size = AFP_INFO_SIZE;
2934 sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
2935
2936 return 0;
2937 }
2938
2939 static int fruit_fstat_rsrc(vfs_handle_struct *handle, files_struct *fsp,
2940 SMB_STRUCT_STAT *sbuf)
2941 {
2942 struct fruit_config_data *config;
2943 struct adouble *ad = (struct adouble *)VFS_FETCH_FSP_EXTENSION(
2944 handle, fsp);
2945
2946 DEBUG(10, ("fruit_fstat_rsrc called for %s\n",
2947 smb_fname_str_dbg(fsp->base_fsp->fsp_name)));
2948
2949 SMB_VFS_HANDLE_GET_DATA(handle, config,
2950 struct fruit_config_data, return -1);
2951
2952 if (config->rsrc == FRUIT_RSRC_STREAM) {
2953 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
2954 }
2955
2956 /* Populate the stat struct with info from the base file. */
2957 if (fruit_stat_base(handle, fsp->base_fsp->fsp_name, false) == -1) {
2958 return -1;
2959 }
2960 *sbuf = fsp->base_fsp->fsp_name->st;
2961 sbuf->st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
2962 sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
2963
2964 DEBUG(10, ("fruit_fstat_rsrc %s, size: %zd\n",
2965 smb_fname_str_dbg(fsp->fsp_name),
2966 (ssize_t)sbuf->st_ex_size));
2967
2968 return 0;
2969 }
2970
2971 static int fruit_fstat(vfs_handle_struct *handle, files_struct *fsp,
2972 SMB_STRUCT_STAT *sbuf)
2973 {
2974 int rc;
2975 char *name = NULL;
2976 char *tmp_base_name = NULL;
2977 NTSTATUS status;
2978 struct adouble *ad = (struct adouble *)
2979 VFS_FETCH_FSP_EXTENSION(handle, fsp);
2980
2981 DEBUG(10, ("fruit_fstat called for %s\n",
2982 smb_fname_str_dbg(fsp->fsp_name)));
2983
2984 if (fsp->base_fsp) {
2985 tmp_base_name = fsp->base_fsp->fsp_name->base_name;
2986 /* fsp_name is not converted with vfs_catia */
2987 status = SMB_VFS_TRANSLATE_NAME(
2988 handle->conn,
2989 fsp->base_fsp->fsp_name->base_name,
2990 vfs_translate_to_unix,
2991 talloc_tos(), &name);
2992
2993 if (NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED)) {
2994 name = talloc_strdup(talloc_tos(), tmp_base_name);
2995 if (name == NULL) {
2996 rc = -1;
2997 goto exit;
2998 }
2999 } else if (!NT_STATUS_IS_OK(status)) {
3000 errno = map_errno_from_nt_status(status);
3001 rc = -1;
3002 goto exit;
3003 }
3004 fsp->base_fsp->fsp_name->base_name = name;
3005 }
3006
3007 if (ad == NULL || fsp->base_fsp == NULL) {
3008 rc = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
3009 goto exit;
3010 }
3011
3012 if (!fruit_fsp_recheck(ad, fsp)) {
3013 rc = -1;
3014 goto exit;
3015 }
3016
3017 switch (ad->ad_type) {
3018 case ADOUBLE_META:
3019 rc = fruit_fstat_meta(handle, fsp, sbuf);
3020 break;
3021 case ADOUBLE_RSRC:
3022 rc = fruit_fstat_rsrc(handle, fsp, sbuf);
3023 break;
3024 default:
3025 DEBUG(10, ("fruit_fstat %s: bad type\n",
3026 smb_fname_str_dbg(fsp->fsp_name)));
3027 rc = -1;
3028 goto exit;
3029 }
3030
3031 if (rc == 0) {
3032 sbuf->st_ex_mode &= ~S_IFMT;
3033 sbuf->st_ex_mode |= S_IFREG;
3034 sbuf->st_ex_blocks = sbuf->st_ex_size / STAT_ST_BLOCKSIZE + 1;
3035 }
3036
3037 exit:
3038 DEBUG(10, ("fruit_fstat %s, size: %zd\n",
3039 smb_fname_str_dbg(fsp->fsp_name),
3040 (ssize_t)sbuf->st_ex_size));
3041 if (tmp_base_name) {
3042 fsp->base_fsp->fsp_name->base_name = tmp_base_name;
3043 }
3044 TALLOC_FREE(name);
3045 return rc;
3046 }
3047
3048 static NTSTATUS fruit_streaminfo(vfs_handle_struct *handle,
3049 struct files_struct *fsp,
3050 const char *fname,
3051 TALLOC_CTX *mem_ctx,
3052 unsigned int *pnum_streams,
3053 struct stream_struct **pstreams)
3054 {
3055 struct fruit_config_data *config = NULL;
3056 struct smb_filename *smb_fname = NULL;
3057 struct adouble *ad = NULL;
3058
3059 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
3060 return NT_STATUS_UNSUCCESSFUL);
3061 DEBUG(10, ("fruit_streaminfo called for %s\n", fname));
3062
3063 smb_fname = synthetic_smb_fname(talloc_tos(), fname, NULL, NULL);
3064 if (smb_fname == NULL) {
3065 return NT_STATUS_NO_MEMORY;
3066 }
3067
3068 if (config->meta == FRUIT_META_NETATALK) {
3069 ad = ad_get(talloc_tos(), handle,
3070 smb_fname->base_name, ADOUBLE_META);
3071 if (ad && !empty_finderinfo(ad)) {
3072 if (!add_fruit_stream(
3073 mem_ctx, pnum_streams, pstreams,
3074 AFPINFO_STREAM_NAME, AFP_INFO_SIZE,
3075 smb_roundup(handle->conn,
3076 AFP_INFO_SIZE))) {
3077 TALLOC_FREE(ad);
3078 TALLOC_FREE(smb_fname);
3079 return NT_STATUS_NO_MEMORY;
3080 }
3081 }
3082 TALLOC_FREE(ad);
3083 }
3084
3085 if (config->rsrc != FRUIT_RSRC_STREAM) {
3086 ad = ad_get(talloc_tos(), handle, smb_fname->base_name,
3087 ADOUBLE_RSRC);
3088 if (ad && (ad_getentrylen(ad, ADEID_RFORK) > 0)) {
3089 if (!add_fruit_stream(
3090 mem_ctx, pnum_streams, pstreams,
3091 AFPRESOURCE_STREAM_NAME,
3092 ad_getentrylen(ad, ADEID_RFORK),
3093 smb_roundup(handle->conn,
3094 ad_getentrylen(
3095 ad, ADEID_RFORK)))) {
3096 TALLOC_FREE(ad);
3097 TALLOC_FREE(smb_fname);
3098 return NT_STATUS_NO_MEMORY;
3099 }
3100 }
3101 TALLOC_FREE(ad);
3102 }
3103
3104 TALLOC_FREE(smb_fname);
3105
3106 return SMB_VFS_NEXT_STREAMINFO(handle, fsp, fname, mem_ctx,
3107 pnum_streams, pstreams);
3108 }
3109
3110 static int fruit_ntimes(vfs_handle_struct *handle,
3111 const struct smb_filename *smb_fname,
3112 struct smb_file_time *ft)
3113 {
3114 int rc = 0;
3115 struct adouble *ad = NULL;
3116
3117 if (null_timespec(ft->create_time)) {
3118 goto exit;
3119 }
3120
3121 DEBUG(10,("set btime for %s to %s\n", smb_fname_str_dbg(smb_fname),
3122 time_to_asc(convert_timespec_to_time_t(ft->create_time))));
3123
3124 ad = ad_get(talloc_tos(), handle, smb_fname->base_name, ADOUBLE_META);
3125 if (ad == NULL) {
3126 goto exit;
3127 }
3128
3129 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX,
3130 convert_time_t_to_uint32_t(ft->create_time.tv_sec));
3131
3132 rc = ad_write(ad, smb_fname->base_name);
3133
3134 exit:
3135
3136 TALLOC_FREE(ad);
3137 if (rc != 0) {
3138 DEBUG(1, ("fruit_ntimes: %s\n", smb_fname_str_dbg(smb_fname)));
3139 return -1;
3140 }
3141 return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
3142 }
3143
3144 static int fruit_fallocate(struct vfs_handle_struct *handle,
3145 struct files_struct *fsp,
3146 uint32_t mode,
3147 off_t offset,
3148 off_t len)
3149 {
3150 struct adouble *ad =
3151 (struct adouble *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
3152
3153 if (ad == NULL) {
3154 return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
3155 }
3156
3157 if (!fruit_fsp_recheck(ad, fsp)) {
3158 return -1;
3159 }
3160
3161 /* Let the pwrite code path handle it. */
3162 errno = ENOSYS;
3163 return -1;
3164 }
3165
3166 static int fruit_ftruncate_meta(struct vfs_handle_struct *handle,
3167 struct files_struct *fsp,
3168 off_t offset,
3169 struct adouble *ad)
3170 {
3171 /*
3172 * As this request hasn't been seen in the wild,
3173 * the only sensible use I can imagine is the client
3174 * truncating the stream to 0 bytes size.
3175 * We simply remove the metadata on such a request.
3176 */
3177 if (offset != 0) {
3178 DBG_WARNING("ftruncate %s to %jd",
3179 fsp_str_dbg(fsp), (intmax_t)offset);
3180 return -1;
3181 }
3182
3183 return SMB_VFS_FREMOVEXATTR(fsp, AFPRESOURCE_EA_NETATALK);
3184 }
3185
3186 static int fruit_ftruncate_rsrc(struct vfs_handle_struct *handle,
3187 struct files_struct *fsp,
3188 off_t offset,
3189 struct adouble *ad)
3190 {
3191 int rc;
3192 struct fruit_config_data *config;
3193
3194 SMB_VFS_HANDLE_GET_DATA(handle, config,
3195 struct fruit_config_data, return -1);
3196
3197 if (config->rsrc == FRUIT_RSRC_XATTR && offset == 0) {
3198 return SMB_VFS_FREMOVEXATTR(fsp,
3199 AFPRESOURCE_EA_NETATALK);
3200 }
3201
3202 rc = SMB_VFS_NEXT_FTRUNCATE(
3203 handle, fsp,
3204 offset + ad_getentryoff(ad, ADEID_RFORK));
3205 if (rc != 0) {
3206 return -1;
3207 }
3208
3209 if (config->rsrc == FRUIT_RSRC_ADFILE) {
3210 ad_setentrylen(ad, ADEID_RFORK, offset);
3211 rc = ad_write(ad, NULL);
3212 if (rc != 0) {
3213 return -1;
3214 }
3215 DEBUG(10, ("fruit_ftruncate_rsrc file %s offset %jd\n",
3216 fsp_str_dbg(fsp), (intmax_t)offset));
3217 }
3218
3219 return 0;
3220 }
3221
3222 static int fruit_ftruncate(struct vfs_handle_struct *handle,
3223 struct files_struct *fsp,
3224 off_t offset)
3225 {
3226 int rc = 0;
3227 struct adouble *ad =
3228 (struct adouble *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
3229
3230 DEBUG(10, ("streams_xattr_ftruncate called for file %s offset %.0f\n",
3231 fsp_str_dbg(fsp), (double)offset));
3232
3233 if (ad == NULL) {
3234 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
3235 }
3236
3237 if (!fruit_fsp_recheck(ad, fsp)) {
3238 return -1;
3239 }
3240
3241 switch (ad->ad_type) {
3242 case ADOUBLE_META:
3243 rc = fruit_ftruncate_meta(handle, fsp, offset, ad);
3244 break;
3245
3246 case ADOUBLE_RSRC:
3247 rc = fruit_ftruncate_rsrc(handle, fsp, offset, ad);
3248 break;
3249
3250 default:
3251 return -1;
3252 }
3253
3254 return rc;
3255 }
3256
3257 static NTSTATUS fruit_create_file(vfs_handle_struct *handle,
3258 struct smb_request *req,
3259 uint16_t root_dir_fid,
3260 struct smb_filename *smb_fname,
3261 uint32_t access_mask,
3262 uint32_t share_access,
3263 uint32_t create_disposition,
3264 uint32_t create_options,
3265 uint32_t file_attributes,
3266 uint32_t oplock_request,
3267 struct smb2_lease *lease,
3268 uint64_t allocation_size,
3269 uint32_t private_flags,
3270 struct security_descriptor *sd,
3271 struct ea_list *ea_list,
3272 files_struct **result,
3273 int *pinfo,
3274 const struct smb2_create_blobs *in_context_blobs,
3275 struct smb2_create_blobs *out_context_blobs)
3276 {
3277 NTSTATUS status;
3278 struct fruit_config_data *config = NULL;
3279 files_struct *fsp = NULL;
3280
3281 status = check_aapl(handle, req, in_context_blobs, out_context_blobs);
3282 if (!NT_STATUS_IS_OK(status)) {
3283 return status;
3284 }
3285
3286 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
3287 return NT_STATUS_UNSUCCESSFUL);
3288
3289 status = SMB_VFS_NEXT_CREATE_FILE(
3290 handle, req, root_dir_fid, smb_fname,
3291 access_mask, share_access,
3292 create_disposition, create_options,
3293 file_attributes, oplock_request,
3294 lease,
3295 allocation_size, private_flags,
3296 sd, ea_list, result,
3297 pinfo, in_context_blobs, out_context_blobs);
3298 if (!NT_STATUS_IS_OK(status)) {
3299 return status;
3300 }
3301 fsp = *result;
3302
3303 if (config->copyfile_enabled) {
3304 /*
3305 * Set a flag in the fsp. Gets used in copychunk to
3306 * check whether the special Apple copyfile semantics
3307 * for copychunk should be allowed in a copychunk
3308 * request with a count of 0.
3309 */
3310 fsp->aapl_copyfile_supported = true;
3311 }
3312
3313 /*
3314 * If this is a plain open for existing files, opening an 0
3315 * byte size resource fork MUST fail with
3316 * NT_STATUS_OBJECT_NAME_NOT_FOUND.
3317 *
3318 * Cf the vfs_fruit torture tests in test_rfork_create().
3319 */
3320 if (is_afpresource_stream(fsp->fsp_name) &&
3321 create_disposition == FILE_OPEN)
3322 {
3323 if (fsp->fsp_name->st.st_ex_size == 0) {
3324 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
3325 goto fail;
3326 }
3327 }
3328
3329 if (is_ntfs_stream_smb_fname(smb_fname)
3330 || fsp->is_directory) {
3331 return status;
3332 }
3333
3334 if (config->locking == FRUIT_LOCKING_NETATALK) {
3335 status = fruit_check_access(
3336 handle, *result,
3337 access_mask,
3338 map_share_mode_to_deny_mode(share_access, 0));
3339 if (!NT_STATUS_IS_OK(status)) {
3340 goto fail;
3341 }
3342 }
3343
3344 return status;
3345
3346 fail:
3347 DEBUG(10, ("fruit_create_file: %s\n", nt_errstr(status)));
3348
3349 if (fsp) {
3350 close_file(req, fsp, ERROR_CLOSE);
3351 *result = fsp = NULL;
3352 }
3353
3354 return status;
3355 }
3356
3357 static NTSTATUS fruit_readdir_attr(struct vfs_handle_struct *handle,
3358 const struct smb_filename *fname,
3359 TALLOC_CTX *mem_ctx,
3360 struct readdir_attr_data **pattr_data)
3361 {
3362 struct fruit_config_data *config = NULL;
3363 struct readdir_attr_data *attr_data;
3364 NTSTATUS status;
3365
3366 SMB_VFS_HANDLE_GET_DATA(handle, config,
3367 struct fruit_config_data,
3368 return NT_STATUS_UNSUCCESSFUL);
3369
3370 if (!config->use_aapl) {
3371 return SMB_VFS_NEXT_READDIR_ATTR(handle, fname, mem_ctx, pattr_data);
3372 }
3373
3374 DEBUG(10, ("fruit_readdir_attr %s\n", fname->base_name));
3375
3376 *pattr_data = talloc_zero(mem_ctx, struct readdir_attr_data);
3377 if (*pattr_data == NULL) {
3378 return NT_STATUS_UNSUCCESSFUL;
3379 }
3380 attr_data = *pattr_data;
3381 attr_data->type = RDATTR_AAPL;
3382
3383 /*
3384 * Mac metadata: compressed FinderInfo, resource fork length
3385 * and creation date
3386 */
3387 status = readdir_attr_macmeta(handle, fname, attr_data);
3388 if (!NT_STATUS_IS_OK(status)) {
3389 /*
3390 * Error handling is tricky: if we return failure from
3391 * this function, the corresponding directory entry
3392 * will to be passed to the client, so we really just
3393 * want to error out on fatal errors.
3394 */
3395 if (!NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
3396 goto fail;
3397 }
3398 }
3399
3400 /*
3401 * UNIX mode
3402 */
3403 if (config->unix_info_enabled) {
3404 attr_data->attr_data.aapl.unix_mode = fname->st.st_ex_mode;
3405 }
3406
3407 /*
3408 * max_access
3409 */
3410 if (!config->readdir_attr_max_access) {
3411 attr_data->attr_data.aapl.max_access = FILE_GENERIC_ALL;
3412 } else {
3413 status = smbd_calculate_access_mask(
3414 handle->conn,
3415 fname,
3416 false,
3417 SEC_FLAG_MAXIMUM_ALLOWED,
3418 &attr_data->attr_data.aapl.max_access);
3419 if (!NT_STATUS_IS_OK(status)) {
3420 goto fail;
3421 }
3422 }
3423
3424 return NT_STATUS_OK;
3425
3426 fail:
3427 DEBUG(1, ("fruit_readdir_attr %s, error: %s\n",
3428 fname->base_name, nt_errstr(status)));
3429 TALLOC_FREE(*pattr_data);
3430 return status;
3431 }
3432
3433 static NTSTATUS fruit_fget_nt_acl(vfs_handle_struct *handle,
3434 files_struct *fsp,
3435 uint32_t security_info,
3436 TALLOC_CTX *mem_ctx,
3437 struct security_descriptor **ppdesc)
3438 {
3439 NTSTATUS status;
3440 struct security_ace ace;
3441 struct dom_sid sid;
3442 struct fruit_config_data *config;
3443
3444 SMB_VFS_HANDLE_GET_DATA(handle, config,
3445 struct fruit_config_data,
3446 return NT_STATUS_UNSUCCESSFUL);
3447
3448 status = SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info,
3449 mem_ctx, ppdesc);
3450 if (!NT_STATUS_IS_OK(status)) {
3451 return status;
3452 }
3453
3454 /*
3455 * Add MS NFS style ACEs with uid, gid and mode
3456 */
3457 if (!config->unix_info_enabled) {
3458 return NT_STATUS_OK;
3459 }
3460
3461 /* MS NFS style mode */
3462 sid_compose(&sid, &global_sid_Unix_NFS_Mode, fsp->fsp_name->st.st_ex_mode);
3463 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
3464 status = security_descriptor_dacl_add(*ppdesc, &ace);
3465 if (!NT_STATUS_IS_OK(status)) {
3466 DEBUG(1,("failed to add MS NFS style ACE\n"));
3467 return status;
3468 }
3469
3470 /* MS NFS style uid */
3471 sid_compose(&sid, &global_sid_Unix_NFS_Users, fsp->fsp_name->st.st_ex_uid);
3472 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
3473 status = security_descriptor_dacl_add(*ppdesc, &ace);
3474 if (!NT_STATUS_IS_OK(status)) {
3475 DEBUG(1,("failed to add MS NFS style ACE\n"));
3476 return status;
3477 }
3478
3479 /* MS NFS style gid */
3480 sid_compose(&sid, &global_sid_Unix_NFS_Groups, fsp->fsp_name->st.st_ex_gid);
3481 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
3482 status = security_descriptor_dacl_add(*ppdesc, &ace);
3483 if (!NT_STATUS_IS_OK(status)) {
3484 DEBUG(1,("failed to add MS NFS style ACE\n"));
3485 return status;
3486 }
3487
3488 return NT_STATUS_OK;
3489 }
3490
3491 static NTSTATUS fruit_fset_nt_acl(vfs_handle_struct *handle,
3492 files_struct *fsp,
3493 uint32_t security_info_sent,
3494 const struct security_descriptor *psd)
3495 {
3496 NTSTATUS status;
3497 bool do_chmod;
3498 mode_t ms_nfs_mode;
3499 int result;
3500
3501 DEBUG(1, ("fruit_fset_nt_acl: %s\n", fsp_str_dbg(fsp)));
3502
3503 status = check_ms_nfs(handle, fsp, psd, &ms_nfs_mode, &do_chmod);
3504 if (!NT_STATUS_IS_OK(status)) {
3505 DEBUG(1, ("fruit_fset_nt_acl: check_ms_nfs failed%s\n", fsp_str_dbg(fsp)));
3506 return status;
3507 }
3508
3509 status = SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
3510 if (!NT_STATUS_IS_OK(status)) {
3511 DEBUG(1, ("fruit_fset_nt_acl: SMB_VFS_NEXT_FSET_NT_ACL failed%s\n", fsp_str_dbg(fsp)));
3512 return status;
3513 }
3514
3515 if (do_chmod) {
3516 if (fsp->fh->fd != -1) {
3517 DEBUG(1, ("fchmod: %s\n", fsp_str_dbg(fsp)));
3518 result = SMB_VFS_FCHMOD(fsp, ms_nfs_mode);
3519 } else {
3520 DEBUG(1, ("chmod: %s\n", fsp_str_dbg(fsp)));
3521 result = SMB_VFS_CHMOD(fsp->conn,
3522 fsp->fsp_name->base_name,
3523 ms_nfs_mode);
3524 }
3525
3526 if (result != 0) {
3527 DEBUG(1, ("chmod: %s, result: %d, %04o error %s\n", fsp_str_dbg(fsp),
3528 result, (unsigned)ms_nfs_mode,
3529 strerror(errno)));
3530 status = map_nt_error_from_unix(errno);
3531 return status;
3532 }
3533 }
3534
3535 return NT_STATUS_OK;
3536 }
3537
3538 struct fruit_copy_chunk_state {
3539 struct vfs_handle_struct *handle;
3540 off_t copied;
3541 struct files_struct *src_fsp;
3542 struct files_struct *dst_fsp;
3543 bool is_copyfile;
3544 };
3545
3546 static void fruit_copy_chunk_done(struct tevent_req *subreq);
3547 static struct tevent_req *fruit_copy_chunk_send(struct vfs_handle_struct *handle,
3548 TALLOC_CTX *mem_ctx,
3549 struct tevent_context *ev,
3550 struct files_struct *src_fsp,
3551 off_t src_off,
3552 struct files_struct *dest_fsp,
3553 off_t dest_off,
3554 off_t num)
3555 {
3556 struct tevent_req *req, *subreq;
3557 struct fruit_copy_chunk_state *fruit_copy_chunk_state;
3558 NTSTATUS status;
3559 struct fruit_config_data *config;
3560 off_t to_copy = num;
3561
3562 DEBUG(10,("soff: %ju, doff: %ju, len: %ju\n",
3563 (uintmax_t)src_off, (uintmax_t)dest_off, (uintmax_t)num));
3564
3565 SMB_VFS_HANDLE_GET_DATA(handle, config,
3566 struct fruit_config_data,
3567 return NULL);
3568
3569 req = tevent_req_create(mem_ctx, &fruit_copy_chunk_state,
3570 struct fruit_copy_chunk_state);
3571 if (req == NULL) {
3572 return NULL;
3573 }
3574 fruit_copy_chunk_state->handle = handle;
3575 fruit_copy_chunk_state->src_fsp = src_fsp;
3576 fruit_copy_chunk_state->dst_fsp = dest_fsp;
3577
3578 /*
3579 * Check if this a OS X copyfile style copychunk request with
3580 * a requested chunk count of 0 that was translated to a
3581 * copy_chunk_send VFS call overloading the parameters src_off
3582 * = dest_off = num = 0.
3583 */
3584 if ((src_off == 0) && (dest_off == 0) && (num == 0) &&
3585 src_fsp->aapl_copyfile_supported &&
3586 dest_fsp->aapl_copyfile_supported)
3587 {
3588 status = vfs_stat_fsp(src_fsp);
3589 if (tevent_req_nterror(req, status)) {
3590 return tevent_req_post(req, ev);
3591 }
3592
3593 to_copy = src_fsp->fsp_name->st.st_ex_size;
3594 fruit_copy_chunk_state->is_copyfile = true;
3595 }
3596
3597 subreq = SMB_VFS_NEXT_COPY_CHUNK_SEND(handle,
3598 mem_ctx,
3599 ev,
3600 src_fsp,
3601 src_off,
3602 dest_fsp,
3603 dest_off,
3604 to_copy);
3605 if (tevent_req_nomem(subreq, req)) {
3606 return tevent_req_post(req, ev);
3607 }
3608
3609 tevent_req_set_callback(subreq, fruit_copy_chunk_done, req);
3610 return req;
3611 }
3612
3613 static void fruit_copy_chunk_done(struct tevent_req *subreq)
3614 {
3615 struct tevent_req *req = tevent_req_callback_data(
3616 subreq, struct tevent_req);
3617 struct fruit_copy_chunk_state *state = tevent_req_data(
3618 req, struct fruit_copy_chunk_state);
3619 NTSTATUS status;
3620 unsigned int num_streams = 0;
3621 struct stream_struct *streams = NULL;
3622 int i;
3623 struct smb_filename *src_fname_tmp = NULL;
3624 struct smb_filename *dst_fname_tmp = NULL;
3625
3626 status = SMB_VFS_NEXT_COPY_CHUNK_RECV(state->handle,
3627 subreq,
3628 &state->copied);
3629 TALLOC_FREE(subreq);
3630 if (tevent_req_nterror(req, status)) {
3631 return;
3632 }
3633
3634 if (!state->is_copyfile) {
3635 tevent_req_done(req);
3636 return;
3637 }
3638
3639 /*
3640 * Now copy all reamining streams. We know the share supports
3641 * streams, because we're in vfs_fruit. We don't do this async
3642 * because streams are few and small.
3643 */
3644 status = vfs_streaminfo(state->handle->conn, NULL,
3645 state->src_fsp->fsp_name->base_name,
3646 req, &num_streams, &streams);
3647 if (tevent_req_nterror(req, status)) {
3648 return;
3649 }
3650
3651 if (num_streams == 1) {
3652 /* There is always one stream, ::$DATA. */
3653 tevent_req_done(req);
3654 return;
3655 }
3656
3657 for (i = 0; i < num_streams; i++) {
3658 DEBUG(10, ("%s: stream: '%s'/%ju\n",
3659 __func__, streams[i].name,
3660 (uintmax_t)streams[i].size));
3661
3662 src_fname_tmp = synthetic_smb_fname(
3663 req,
3664 state->src_fsp->fsp_name->base_name,
3665 streams[i].name,
3666 NULL);
3667 if (tevent_req_nomem(src_fname_tmp, req)) {
3668 return;
3669 }
3670
3671 if (is_ntfs_default_stream_smb_fname(src_fname_tmp)) {
3672 TALLOC_FREE(src_fname_tmp);
3673 continue;
3674 }
3675
3676 dst_fname_tmp = synthetic_smb_fname(
3677 req,
3678 state->dst_fsp->fsp_name->base_name,
3679 streams[i].name,
3680 NULL);
3681 if (tevent_req_nomem(dst_fname_tmp, req)) {
3682 TALLOC_FREE(src_fname_tmp);
3683 return;
3684 }
3685
3686 status = copy_file(req,
3687 state->handle->conn,
3688 src_fname_tmp,
3689 dst_fname_tmp,
3690 OPENX_FILE_CREATE_IF_NOT_EXIST,
3691 0, false);
3692 if (!NT_STATUS_IS_OK(status)) {
3693 DEBUG(1, ("%s: copy %s to %s failed: %s\n", __func__,
3694 smb_fname_str_dbg(src_fname_tmp),
3695 smb_fname_str_dbg(dst_fname_tmp),
3696 nt_errstr(status)));
3697 TALLOC_FREE(src_fname_tmp);
3698 TALLOC_FREE(dst_fname_tmp);
3699 tevent_req_nterror(req, status);
3700 return;
3701 }
3702
3703 TALLOC_FREE(src_fname_tmp);
3704 TALLOC_FREE(dst_fname_tmp);
3705 }
3706
3707 TALLOC_FREE(streams);
3708 TALLOC_FREE(src_fname_tmp);
3709 TALLOC_FREE(dst_fname_tmp);
3710 tevent_req_done(req);
3711 }
3712
3713 static NTSTATUS fruit_copy_chunk_recv(struct vfs_handle_struct *handle,
3714 struct tevent_req *req,
3715 off_t *copied)
3716 {
3717 struct fruit_copy_chunk_state *fruit_copy_chunk_state = tevent_req_data(
3718 req, struct fruit_copy_chunk_state);
3719 NTSTATUS status;
3720
3721 if (tevent_req_is_nterror(req, &status)) {
3722 DEBUG(1, ("server side copy chunk failed: %s\n",
3723 nt_errstr(status)));
3724 *copied = 0;
3725 tevent_req_received(req);
3726 return status;
3727 }
3728
3729 *copied = fruit_copy_chunk_state->copied;
3730 tevent_req_received(req);
3731
3732 return NT_STATUS_OK;
3733 }
3734
3735 static struct vfs_fn_pointers vfs_fruit_fns = {
3736 .connect_fn = fruit_connect,
3737
3738 /* File operations */
3739 .chmod_fn = fruit_chmod,
3740 .chown_fn = fruit_chown,
3741 .unlink_fn = fruit_unlink,
3742 .rename_fn = fruit_rename,
3743 .rmdir_fn = fruit_rmdir,
3744 .open_fn = fruit_open,
3745 .pread_fn = fruit_pread,
3746 .pwrite_fn = fruit_pwrite,
3747 .stat_fn = fruit_stat,
3748 .lstat_fn = fruit_lstat,
3749 .fstat_fn = fruit_fstat,
3750 .streaminfo_fn = fruit_streaminfo,
3751 .ntimes_fn = fruit_ntimes,
3752 .ftruncate_fn = fruit_ftruncate,
3753 .fallocate_fn = fruit_fallocate,
3754 .create_file_fn = fruit_create_file,
3755 .readdir_attr_fn = fruit_readdir_attr,
3756 .copy_chunk_send_fn = fruit_copy_chunk_send,
3757 .copy_chunk_recv_fn = fruit_copy_chunk_recv,
3758
3759 /* NT ACL operations */
3760 .fget_nt_acl_fn = fruit_fget_nt_acl,
3761 .fset_nt_acl_fn = fruit_fset_nt_acl,
3762 };
3763
3764 NTSTATUS vfs_fruit_init(void);
3765 NTSTATUS vfs_fruit_init(void)
3766 {
3767 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fruit",
3768 &vfs_fruit_fns);
3769 if (!NT_STATUS_IS_OK(ret)) {
3770 return ret;
3771 }
3772
3773 vfs_fruit_debug_level = debug_add_class("fruit");
3774 if (vfs_fruit_debug_level == -1) {
3775 vfs_fruit_debug_level = DBGC_VFS;
3776 DEBUG(0, ("%s: Couldn't register custom debugging class!\n",
3777 "vfs_fruit_init"));
3778 } else {
3779 DEBUG(10, ("%s: Debug class number of '%s': %d\n",
3780 "vfs_fruit_init","fruit",vfs_fruit_debug_level));
3781 }
3782
3783 return ret;
3784 }
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