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s3: smbd: Fruit. Make the use of dom_sid_compare_domain() much clearer.
[Samba.git] / source3 / modules / vfs_fruit.c
blob1a05d0bae3462bc5f3dc458defcf5be195ab5968
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/util/sys_rw.h"
33 #include "lib/util/tevent_ntstatus.h"
34 #include "lib/util/tevent_unix.h"
35 #include "offload_token.h"
36 #include "string_replace.h"
37
38 /*
39 * Enhanced OS X and Netatalk compatibility
40 * ========================================
41 *
42 * This modules takes advantage of vfs_streams_xattr and
43 * vfs_catia. VFS modules vfs_fruit and vfs_streams_xattr must be
44 * loaded in the correct order:
45 *
46 * vfs modules = catia fruit streams_xattr
47 *
48 * The module intercepts the OS X special streams "AFP_AfpInfo" and
49 * "AFP_Resource" and handles them in a special way. All other named
50 * streams are deferred to vfs_streams_xattr.
51 *
52 * The OS X client maps all NTFS illegal characters to the Unicode
53 * private range. This module optionally stores the charcters using
54 * their native ASCII encoding using vfs_catia. If you're not enabling
55 * this feature, you can skip catia from vfs modules.
56 *
57 * Finally, open modes are optionally checked against Netatalk AFP
58 * share modes.
59 *
60 * The "AFP_AfpInfo" named stream is a binary blob containing OS X
61 * extended metadata for files and directories. This module optionally
62 * reads and stores this metadata in a way compatible with Netatalk 3
63 * which stores the metadata in an EA "org.netatalk.metadata". Cf
64 * source3/include/MacExtensions.h for a description of the binary
65 * blobs content.
66 *
67 * The "AFP_Resource" named stream may be arbitrarily large, thus it
68 * can't be stored in an xattr on most filesystem. ZFS on Solaris is
69 * the only available filesystem where xattrs can be of any size and
70 * the OS supports using the file APIs for xattrs.
71 *
72 * The AFP_Resource stream is stored in an AppleDouble file prepending
73 * "._" to the filename. On Solaris with ZFS the stream is optionally
74 * stored in an EA "org.netatalk.resource".
75 *
76 *
77 * Extended Attributes
78 * ===================
79 *
80 * The OS X SMB client sends xattrs as ADS too. For xattr interop with
81 * other protocols you may want to adjust the xattr names the VFS
82 * module vfs_streams_xattr uses for storing ADS's. This defaults to
83 * user.DosStream.ADS_NAME:$DATA and can be changed by specifying
84 * these module parameters:
85 *
86 * streams_xattr:prefix = user.
87 * streams_xattr:store_stream_type = false
88 *
89 *
90 * TODO
91 * ====
92 *
93 * - log diagnostic if any needed VFS module is not loaded
94 * (eg with lp_vfs_objects())
95 * - add tests
96 */
97
98 static int vfs_fruit_debug_level = DBGC_VFS;
99
100 static struct global_fruit_config {
101 bool nego_aapl; /* client negotiated AAPL */
102
103 } global_fruit_config;
104
105 #undef DBGC_CLASS
106 #define DBGC_CLASS vfs_fruit_debug_level
107
108 #define FRUIT_PARAM_TYPE_NAME "fruit"
109 #define ADOUBLE_NAME_PREFIX "._"
110
111 #define NETATALK_META_XATTR "org.netatalk.Metadata"
112 #define NETATALK_RSRC_XATTR "org.netatalk.ResourceFork"
113
114 #if defined(HAVE_ATTROPEN)
115 #define AFPINFO_EA_NETATALK NETATALK_META_XATTR
116 #define AFPRESOURCE_EA_NETATALK NETATALK_RSRC_XATTR
117 #else
118 #define AFPINFO_EA_NETATALK "user." NETATALK_META_XATTR
119 #define AFPRESOURCE_EA_NETATALK "user." NETATALK_RSRC_XATTR
120 #endif
121
122 enum apple_fork {APPLE_FORK_DATA, APPLE_FORK_RSRC};
123
124 enum fruit_rsrc {FRUIT_RSRC_STREAM, FRUIT_RSRC_ADFILE, FRUIT_RSRC_XATTR};
125 enum fruit_meta {FRUIT_META_STREAM, FRUIT_META_NETATALK};
126 enum fruit_locking {FRUIT_LOCKING_NETATALK, FRUIT_LOCKING_NONE};
127 enum fruit_encoding {FRUIT_ENC_NATIVE, FRUIT_ENC_PRIVATE};
128
129 struct fruit_config_data {
130 enum fruit_rsrc rsrc;
131 enum fruit_meta meta;
132 enum fruit_locking locking;
133 enum fruit_encoding encoding;
134 bool use_aapl; /* config from smb.conf */
135 bool use_copyfile;
136 bool readdir_attr_enabled;
137 bool unix_info_enabled;
138 bool copyfile_enabled;
139 bool veto_appledouble;
140 bool posix_rename;
141 bool aapl_zero_file_id;
142 const char *model;
143 bool time_machine;
144 off_t time_machine_max_size;
145
146 /*
147 * Additional options, all enabled by default,
148 * possibly useful for analyzing performance. The associated
149 * operations with each of them may be expensive, so having
150 * the chance to disable them individually gives a chance
151 * tweaking the setup for the particular usecase.
152 */
153 bool readdir_attr_rsize;
154 bool readdir_attr_finder_info;
155 bool readdir_attr_max_access;
156 };
157
158 static const struct enum_list fruit_rsrc[] = {
159 {FRUIT_RSRC_STREAM, "stream"}, /* pass on to vfs_streams_xattr */
160 {FRUIT_RSRC_ADFILE, "file"}, /* ._ AppleDouble file */
161 {FRUIT_RSRC_XATTR, "xattr"}, /* Netatalk compatible xattr (ZFS only) */
162 { -1, NULL}
163 };
164
165 static const struct enum_list fruit_meta[] = {
166 {FRUIT_META_STREAM, "stream"}, /* pass on to vfs_streams_xattr */
167 {FRUIT_META_NETATALK, "netatalk"}, /* Netatalk compatible xattr */
168 { -1, NULL}
169 };
170
171 static const struct enum_list fruit_locking[] = {
172 {FRUIT_LOCKING_NETATALK, "netatalk"}, /* synchronize locks with Netatalk */
173 {FRUIT_LOCKING_NONE, "none"},
174 { -1, NULL}
175 };
176
177 static const struct enum_list fruit_encoding[] = {
178 {FRUIT_ENC_NATIVE, "native"}, /* map unicode private chars to ASCII */
179 {FRUIT_ENC_PRIVATE, "private"}, /* keep unicode private chars */
180 { -1, NULL}
181 };
182
183 static const char *fruit_catia_maps =
184 "0x01:0xf001,0x02:0xf002,0x03:0xf003,0x04:0xf004,"
185 "0x05:0xf005,0x06:0xf006,0x07:0xf007,0x08:0xf008,"
186 "0x09:0xf009,0x0a:0xf00a,0x0b:0xf00b,0x0c:0xf00c,"
187 "0x0d:0xf00d,0x0e:0xf00e,0x0f:0xf00f,0x10:0xf010,"
188 "0x11:0xf011,0x12:0xf012,0x13:0xf013,0x14:0xf014,"
189 "0x15:0xf015,0x16:0xf016,0x17:0xf017,0x18:0xf018,"
190 "0x19:0xf019,0x1a:0xf01a,0x1b:0xf01b,0x1c:0xf01c,"
191 "0x1d:0xf01d,0x1e:0xf01e,0x1f:0xf01f,"
192 "0x22:0xf020,0x2a:0xf021,0x3a:0xf022,0x3c:0xf023,"
193 "0x3e:0xf024,0x3f:0xf025,0x5c:0xf026,0x7c:0xf027,"
194 "0x0d:0xf00d";
195
196 /*****************************************************************************
197 * Defines, functions and data structures that deal with AppleDouble
198 *****************************************************************************/
199
200 /*
201 * There are two AppleDouble blobs we deal with:
202 *
203 * - ADOUBLE_META - AppleDouble blob used by Netatalk for storing
204 * metadata in an xattr
205 *
206 * - ADOUBLE_RSRC - AppleDouble blob used by OS X and Netatalk in
207 * ._ files
208 */
209 typedef enum {ADOUBLE_META, ADOUBLE_RSRC} adouble_type_t;
210
211 /* Version info */
212 #define AD_VERSION2 0x00020000
213 #define AD_VERSION AD_VERSION2
214
215 /*
216 * AppleDouble entry IDs.
217 */
218 #define ADEID_DFORK 1
219 #define ADEID_RFORK 2
220 #define ADEID_NAME 3
221 #define ADEID_COMMENT 4
222 #define ADEID_ICONBW 5
223 #define ADEID_ICONCOL 6
224 #define ADEID_FILEI 7
225 #define ADEID_FILEDATESI 8
226 #define ADEID_FINDERI 9
227 #define ADEID_MACFILEI 10
228 #define ADEID_PRODOSFILEI 11
229 #define ADEID_MSDOSFILEI 12
230 #define ADEID_SHORTNAME 13
231 #define ADEID_AFPFILEI 14
232 #define ADEID_DID 15
233
234 /* Private Netatalk entries */
235 #define ADEID_PRIVDEV 16
236 #define ADEID_PRIVINO 17
237 #define ADEID_PRIVSYN 18
238 #define ADEID_PRIVID 19
239 #define ADEID_MAX (ADEID_PRIVID + 1)
240
241 /*
242 * These are the real ids for the private entries,
243 * as stored in the adouble file
244 */
245 #define AD_DEV 0x80444556
246 #define AD_INO 0x80494E4F
247 #define AD_SYN 0x8053594E
248 #define AD_ID 0x8053567E
249
250 /* Number of actually used entries */
251 #define ADEID_NUM_XATTR 8
252 #define ADEID_NUM_DOT_UND 2
253 #define ADEID_NUM_RSRC_XATTR 1
254
255 /* AppleDouble magic */
256 #define AD_APPLESINGLE_MAGIC 0x00051600
257 #define AD_APPLEDOUBLE_MAGIC 0x00051607
258 #define AD_MAGIC AD_APPLEDOUBLE_MAGIC
259
260 /* Sizes of relevant entry bits */
261 #define ADEDLEN_MAGIC 4
262 #define ADEDLEN_VERSION 4
263 #define ADEDLEN_FILLER 16
264 #define AD_FILLER_TAG "Netatalk " /* should be 16 bytes */
265 #define ADEDLEN_NENTRIES 2
266 #define AD_HEADER_LEN (ADEDLEN_MAGIC + ADEDLEN_VERSION + \
267 ADEDLEN_FILLER + ADEDLEN_NENTRIES) /* 26 */
268 #define AD_ENTRY_LEN_EID 4
269 #define AD_ENTRY_LEN_OFF 4
270 #define AD_ENTRY_LEN_LEN 4
271 #define AD_ENTRY_LEN (AD_ENTRY_LEN_EID + AD_ENTRY_LEN_OFF + AD_ENTRY_LEN_LEN)
272
273 /* Field widths */
274 #define ADEDLEN_NAME 255
275 #define ADEDLEN_COMMENT 200
276 #define ADEDLEN_FILEI 16
277 #define ADEDLEN_FINDERI 32
278 #define ADEDLEN_FILEDATESI 16
279 #define ADEDLEN_SHORTNAME 12 /* length up to 8.3 */
280 #define ADEDLEN_AFPFILEI 4
281 #define ADEDLEN_MACFILEI 4
282 #define ADEDLEN_PRODOSFILEI 8
283 #define ADEDLEN_MSDOSFILEI 2
284 #define ADEDLEN_DID 4
285 #define ADEDLEN_PRIVDEV 8
286 #define ADEDLEN_PRIVINO 8
287 #define ADEDLEN_PRIVSYN 8
288 #define ADEDLEN_PRIVID 4
289
290 /* Offsets */
291 #define ADEDOFF_MAGIC 0
292 #define ADEDOFF_VERSION (ADEDOFF_MAGIC + ADEDLEN_MAGIC)
293 #define ADEDOFF_FILLER (ADEDOFF_VERSION + ADEDLEN_VERSION)
294 #define ADEDOFF_NENTRIES (ADEDOFF_FILLER + ADEDLEN_FILLER)
295
296 #define ADEDOFF_FINDERI_XATTR (AD_HEADER_LEN + \
297 (ADEID_NUM_XATTR * AD_ENTRY_LEN))
298 #define ADEDOFF_COMMENT_XATTR (ADEDOFF_FINDERI_XATTR + ADEDLEN_FINDERI)
299 #define ADEDOFF_FILEDATESI_XATTR (ADEDOFF_COMMENT_XATTR + ADEDLEN_COMMENT)
300 #define ADEDOFF_AFPFILEI_XATTR (ADEDOFF_FILEDATESI_XATTR + \
301 ADEDLEN_FILEDATESI)
302 #define ADEDOFF_PRIVDEV_XATTR (ADEDOFF_AFPFILEI_XATTR + ADEDLEN_AFPFILEI)
303 #define ADEDOFF_PRIVINO_XATTR (ADEDOFF_PRIVDEV_XATTR + ADEDLEN_PRIVDEV)
304 #define ADEDOFF_PRIVSYN_XATTR (ADEDOFF_PRIVINO_XATTR + ADEDLEN_PRIVINO)
305 #define ADEDOFF_PRIVID_XATTR (ADEDOFF_PRIVSYN_XATTR + ADEDLEN_PRIVSYN)
306
307 #define ADEDOFF_FINDERI_DOT_UND (AD_HEADER_LEN + \
308 (ADEID_NUM_DOT_UND * AD_ENTRY_LEN))
309 #define ADEDOFF_RFORK_DOT_UND (ADEDOFF_FINDERI_DOT_UND + ADEDLEN_FINDERI)
310
311 #define AD_DATASZ_XATTR (AD_HEADER_LEN + \
312 (ADEID_NUM_XATTR * AD_ENTRY_LEN) + \
313 ADEDLEN_FINDERI + ADEDLEN_COMMENT + \
314 ADEDLEN_FILEDATESI + ADEDLEN_AFPFILEI + \
315 ADEDLEN_PRIVDEV + ADEDLEN_PRIVINO + \
316 ADEDLEN_PRIVSYN + ADEDLEN_PRIVID)
317
318 #if AD_DATASZ_XATTR != 402
319 #error bad size for AD_DATASZ_XATTR
320 #endif
321
322 #define AD_DATASZ_DOT_UND (AD_HEADER_LEN + \
323 (ADEID_NUM_DOT_UND * AD_ENTRY_LEN) + \
324 ADEDLEN_FINDERI)
325 #if AD_DATASZ_DOT_UND != 82
326 #error bad size for AD_DATASZ_DOT_UND
327 #endif
328
329 /*
330 * Sharemode locks fcntl() offsets
331 */
332 #if _FILE_OFFSET_BITS == 64 || defined(HAVE_LARGEFILE)
333 #define AD_FILELOCK_BASE (UINT64_C(0x7FFFFFFFFFFFFFFF) - 9)
334 #else
335 #define AD_FILELOCK_BASE (UINT32_C(0x7FFFFFFF) - 9)
336 #endif
337 #define BYTELOCK_MAX (AD_FILELOCK_BASE - 1)
338
339 #define AD_FILELOCK_OPEN_WR (AD_FILELOCK_BASE + 0)
340 #define AD_FILELOCK_OPEN_RD (AD_FILELOCK_BASE + 1)
341 #define AD_FILELOCK_RSRC_OPEN_WR (AD_FILELOCK_BASE + 2)
342 #define AD_FILELOCK_RSRC_OPEN_RD (AD_FILELOCK_BASE + 3)
343 #define AD_FILELOCK_DENY_WR (AD_FILELOCK_BASE + 4)
344 #define AD_FILELOCK_DENY_RD (AD_FILELOCK_BASE + 5)
345 #define AD_FILELOCK_RSRC_DENY_WR (AD_FILELOCK_BASE + 6)
346 #define AD_FILELOCK_RSRC_DENY_RD (AD_FILELOCK_BASE + 7)
347 #define AD_FILELOCK_OPEN_NONE (AD_FILELOCK_BASE + 8)
348 #define AD_FILELOCK_RSRC_OPEN_NONE (AD_FILELOCK_BASE + 9)
349
350 /* Time stuff we overload the bits a little */
351 #define AD_DATE_CREATE 0
352 #define AD_DATE_MODIFY 4
353 #define AD_DATE_BACKUP 8
354 #define AD_DATE_ACCESS 12
355 #define AD_DATE_MASK (AD_DATE_CREATE | AD_DATE_MODIFY | \
356 AD_DATE_BACKUP | AD_DATE_ACCESS)
357 #define AD_DATE_UNIX (1 << 10)
358 #define AD_DATE_START 0x80000000
359 #define AD_DATE_DELTA 946684800
360 #define AD_DATE_FROM_UNIX(x) (htonl((x) - AD_DATE_DELTA))
361 #define AD_DATE_TO_UNIX(x) (ntohl(x) + AD_DATE_DELTA)
362
363 #define AD_XATTR_HDR_MAGIC 0x41545452 /* 'ATTR' */
364 #define AD_XATTR_MAX_ENTRIES 1024 /* Some arbitrarily enforced limit */
365 #define AD_XATTR_HDR_SIZE 36
366 #define AD_XATTR_MAX_HDR_SIZE 65536
367
368 /* Accessor macros */
369 #define ad_getentrylen(ad,eid) ((ad)->ad_eid[(eid)].ade_len)
370 #define ad_getentryoff(ad,eid) ((ad)->ad_eid[(eid)].ade_off)
371 #define ad_setentrylen(ad,eid,len) ((ad)->ad_eid[(eid)].ade_len = (len))
372 #define ad_setentryoff(ad,eid,off) ((ad)->ad_eid[(eid)].ade_off = (off))
373
374 /*
375 * Both struct ad_xattr_header and struct ad_xattr_entry describe the in memory
376 * representation as well as the on-disk format.
377 *
378 * The ad_xattr_header follows the FinderInfo data in the FinderInfo entry if
379 * the length of the FinderInfo entry is larger then 32 bytes. It is then
380 * preceeded with 2 bytes padding.
381 *
382 * Cf: https://opensource.apple.com/source/xnu/xnu-4570.1.46/bsd/vfs/vfs_xattr.c
383 */
384
385 struct ad_xattr_header {
386 uint32_t adx_magic; /* ATTR_HDR_MAGIC */
387 uint32_t adx_debug_tag; /* for debugging == file id of owning file */
388 uint32_t adx_total_size; /* file offset of end of attribute header + entries + data */
389 uint32_t adx_data_start; /* file offset to attribute data area */
390 uint32_t adx_data_length; /* length of attribute data area */
391 uint32_t adx_reserved[3];
392 uint16_t adx_flags;
393 uint16_t adx_num_attrs;
394 };
395
396 /* On-disk entries are aligned on 4 byte boundaries */
397 struct ad_xattr_entry {
398 uint32_t adx_offset; /* file offset to data */
399 uint32_t adx_length; /* size of attribute data */
400 uint16_t adx_flags;
401 uint8_t adx_namelen; /* included the NULL terminator */
402 char *adx_name; /* NULL-terminated UTF-8 name */
403 };
404
405 struct ad_entry {
406 size_t ade_off;
407 size_t ade_len;
408 };
409
410 struct adouble {
411 vfs_handle_struct *ad_handle;
412 int ad_fd;
413 bool ad_opened;
414 adouble_type_t ad_type;
415 uint32_t ad_magic;
416 uint32_t ad_version;
417 struct ad_entry ad_eid[ADEID_MAX];
418 char *ad_data;
419 struct ad_xattr_header adx_header;
420 struct ad_xattr_entry *adx_entries;
421 };
422
423 struct ad_entry_order {
424 uint32_t id, offset, len;
425 };
426
427 /* Netatalk AppleDouble metadata xattr */
428 static const
429 struct ad_entry_order entry_order_meta_xattr[ADEID_NUM_XATTR + 1] = {
430 {ADEID_FINDERI, ADEDOFF_FINDERI_XATTR, ADEDLEN_FINDERI},
431 {ADEID_COMMENT, ADEDOFF_COMMENT_XATTR, 0},
432 {ADEID_FILEDATESI, ADEDOFF_FILEDATESI_XATTR, ADEDLEN_FILEDATESI},
433 {ADEID_AFPFILEI, ADEDOFF_AFPFILEI_XATTR, ADEDLEN_AFPFILEI},
434 {ADEID_PRIVDEV, ADEDOFF_PRIVDEV_XATTR, 0},
435 {ADEID_PRIVINO, ADEDOFF_PRIVINO_XATTR, 0},
436 {ADEID_PRIVSYN, ADEDOFF_PRIVSYN_XATTR, 0},
437 {ADEID_PRIVID, ADEDOFF_PRIVID_XATTR, 0},
438 {0, 0, 0}
439 };
440
441 /* AppleDouble resource fork file (the ones prefixed by "._") */
442 static const
443 struct ad_entry_order entry_order_dot_und[ADEID_NUM_DOT_UND + 1] = {
444 {ADEID_FINDERI, ADEDOFF_FINDERI_DOT_UND, ADEDLEN_FINDERI},
445 {ADEID_RFORK, ADEDOFF_RFORK_DOT_UND, 0},
446 {0, 0, 0}
447 };
448
449 /*
450 * Fake AppleDouble entry oder for resource fork xattr. The xattr
451 * isn't an AppleDouble file, it simply contains the resource data,
452 * but in order to be able to use some API calls like ad_getentryoff()
453 * we build a fake/helper struct adouble with this entry order struct.
454 */
455 static const
456 struct ad_entry_order entry_order_rsrc_xattr[ADEID_NUM_RSRC_XATTR + 1] = {
457 {ADEID_RFORK, 0, 0},
458 {0, 0, 0}
459 };
460
461 /* Conversion from enumerated id to on-disk AppleDouble id */
462 #define AD_EID_DISK(a) (set_eid[a])
463 static const uint32_t set_eid[] = {
464 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
465 AD_DEV, AD_INO, AD_SYN, AD_ID
466 };
467
468 struct fio {
469 /* tcon config handle */
470 struct fruit_config_data *config;
471
472 /* Denote stream type, meta or rsrc */
473 adouble_type_t type;
474 };
475
476 /*
477 * Forward declarations
478 */
479 static struct adouble *ad_init(TALLOC_CTX *ctx, vfs_handle_struct *handle,
480 adouble_type_t type);
481 static int ad_set(struct adouble *ad, const struct smb_filename *smb_fname);
482 static int ad_fset(struct adouble *ad, files_struct *fsp);
483 static int adouble_path(TALLOC_CTX *ctx,
484 const struct smb_filename *smb_fname__in,
485 struct smb_filename **ppsmb_fname_out);
486 static AfpInfo *afpinfo_new(TALLOC_CTX *ctx);
487 static ssize_t afpinfo_pack(const AfpInfo *ai, char *buf);
488 static AfpInfo *afpinfo_unpack(TALLOC_CTX *ctx, const void *data);
489
490
491 /**
492 * Return a pointer to an AppleDouble entry
493 *
494 * Returns NULL if the entry is not present
495 **/
496 static char *ad_get_entry(const struct adouble *ad, int eid)
497 {
498 off_t off = ad_getentryoff(ad, eid);
499 size_t len = ad_getentrylen(ad, eid);
500
501 if (off == 0 || len == 0) {
502 return NULL;
503 }
504
505 return ad->ad_data + off;
506 }
507
508 /**
509 * Get a date
510 **/
511 static int ad_getdate(const struct adouble *ad,
512 unsigned int dateoff,
513 uint32_t *date)
514 {
515 bool xlate = (dateoff & AD_DATE_UNIX);
516 char *p = NULL;
517
518 dateoff &= AD_DATE_MASK;
519 p = ad_get_entry(ad, ADEID_FILEDATESI);
520 if (p == NULL) {
521 return -1;
522 }
523
524 if (dateoff > AD_DATE_ACCESS) {
525 return -1;
526 }
527
528 memcpy(date, p + dateoff, sizeof(uint32_t));
529
530 if (xlate) {
531 *date = AD_DATE_TO_UNIX(*date);
532 }
533 return 0;
534 }
535
536 /**
537 * Set a date
538 **/
539 static int ad_setdate(struct adouble *ad, unsigned int dateoff, uint32_t date)
540 {
541 bool xlate = (dateoff & AD_DATE_UNIX);
542 char *p = NULL;
543
544 p = ad_get_entry(ad, ADEID_FILEDATESI);
545 if (p == NULL) {
546 return -1;
547 }
548
549 dateoff &= AD_DATE_MASK;
550 if (xlate) {
551 date = AD_DATE_FROM_UNIX(date);
552 }
553
554 if (dateoff > AD_DATE_ACCESS) {
555 return -1;
556 }
557
558 memcpy(p + dateoff, &date, sizeof(date));
559
560 return 0;
561 }
562
563
564 /**
565 * Map on-disk AppleDouble id to enumerated id
566 **/
567 static uint32_t get_eid(uint32_t eid)
568 {
569 if (eid <= 15) {
570 return eid;
571 }
572
573 switch (eid) {
574 case AD_DEV:
575 return ADEID_PRIVDEV;
576 case AD_INO:
577 return ADEID_PRIVINO;
578 case AD_SYN:
579 return ADEID_PRIVSYN;
580 case AD_ID:
581 return ADEID_PRIVID;
582 default:
583 break;
584 }
585
586 return 0;
587 }
588
589 /**
590 * Pack AppleDouble structure into data buffer
591 **/
592 static bool ad_pack(struct adouble *ad)
593 {
594 uint32_t eid;
595 uint16_t nent;
596 uint32_t bufsize;
597 uint32_t offset = 0;
598
599 bufsize = talloc_get_size(ad->ad_data);
600 if (bufsize < AD_DATASZ_DOT_UND) {
601 DBG_ERR("bad buffer size [0x%" PRIx32 "]\n", bufsize);
602 return false;
603 }
604
605 if (offset + ADEDLEN_MAGIC < offset ||
606 offset + ADEDLEN_MAGIC >= bufsize) {
607 return false;
608 }
609 RSIVAL(ad->ad_data, offset, ad->ad_magic);
610 offset += ADEDLEN_MAGIC;
611
612 if (offset + ADEDLEN_VERSION < offset ||
613 offset + ADEDLEN_VERSION >= bufsize) {
614 return false;
615 }
616 RSIVAL(ad->ad_data, offset, ad->ad_version);
617 offset += ADEDLEN_VERSION;
618
619 if (offset + ADEDLEN_FILLER < offset ||
620 offset + ADEDLEN_FILLER >= bufsize) {
621 return false;
622 }
623 if (ad->ad_type == ADOUBLE_RSRC) {
624 memcpy(ad->ad_data + offset, AD_FILLER_TAG, ADEDLEN_FILLER);
625 }
626 offset += ADEDLEN_FILLER;
627
628 if (offset + ADEDLEN_NENTRIES < offset ||
629 offset + ADEDLEN_NENTRIES >= bufsize) {
630 return false;
631 }
632 offset += ADEDLEN_NENTRIES;
633
634 for (eid = 0, nent = 0; eid < ADEID_MAX; eid++) {
635 if (ad->ad_eid[eid].ade_off == 0) {
636 /*
637 * ade_off is also used as indicator whether a
638 * specific entry is used or not
639 */
640 continue;
641 }
642
643 if (offset + AD_ENTRY_LEN_EID < offset ||
644 offset + AD_ENTRY_LEN_EID >= bufsize) {
645 return false;
646 }
647 RSIVAL(ad->ad_data, offset, AD_EID_DISK(eid));
648 offset += AD_ENTRY_LEN_EID;
649
650 if (offset + AD_ENTRY_LEN_OFF < offset ||
651 offset + AD_ENTRY_LEN_OFF >= bufsize) {
652 return false;
653 }
654 RSIVAL(ad->ad_data, offset, ad->ad_eid[eid].ade_off);
655 offset += AD_ENTRY_LEN_OFF;
656
657 if (offset + AD_ENTRY_LEN_LEN < offset ||
658 offset + AD_ENTRY_LEN_LEN >= bufsize) {
659 return false;
660 }
661 RSIVAL(ad->ad_data, offset, ad->ad_eid[eid].ade_len);
662 offset += AD_ENTRY_LEN_LEN;
663
664 nent++;
665 }
666
667 if (ADEDOFF_NENTRIES + 2 >= bufsize) {
668 return false;
669 }
670 RSSVAL(ad->ad_data, ADEDOFF_NENTRIES, nent);
671
672 return true;
673 }
674
675 static bool ad_unpack_xattrs(struct adouble *ad)
676 {
677 struct ad_xattr_header *h = &ad->adx_header;
678 const char *p = ad->ad_data;
679 uint32_t hoff;
680 uint32_t i;
681
682 if (ad_getentrylen(ad, ADEID_FINDERI) <= ADEDLEN_FINDERI) {
683 return true;
684 }
685
686 /* 2 bytes padding */
687 hoff = ad_getentryoff(ad, ADEID_FINDERI) + ADEDLEN_FINDERI + 2;
688
689 h->adx_magic = RIVAL(p, hoff + 0);
690 h->adx_debug_tag = RIVAL(p, hoff + 4); /* Not used -> not checked */
691 h->adx_total_size = RIVAL(p, hoff + 8);
692 h->adx_data_start = RIVAL(p, hoff + 12);
693 h->adx_data_length = RIVAL(p, hoff + 16);
694 h->adx_flags = RSVAL(p, hoff + 32); /* Not used -> not checked */
695 h->adx_num_attrs = RSVAL(p, hoff + 34);
696
697 if (h->adx_magic != AD_XATTR_HDR_MAGIC) {
698 DBG_ERR("Bad magic: 0x%" PRIx32 "\n", h->adx_magic);
699 return false;
700 }
701
702 if (h->adx_total_size > ad_getentryoff(ad, ADEID_RFORK)) {
703 DBG_ERR("Bad total size: 0x%" PRIx32 "\n", h->adx_total_size);
704 return false;
705 }
706 if (h->adx_total_size > AD_XATTR_MAX_HDR_SIZE) {
707 DBG_ERR("Bad total size: 0x%" PRIx32 "\n", h->adx_total_size);
708 return false;
709 }
710
711 if (h->adx_data_start < (hoff + AD_XATTR_HDR_SIZE)) {
712 DBG_ERR("Bad start: 0x%" PRIx32 "\n", h->adx_data_start);
713 return false;
714 }
715
716 if ((h->adx_data_start + h->adx_data_length) < h->adx_data_start) {
717 DBG_ERR("Bad length: %" PRIu32 "\n", h->adx_data_length);
718 return false;
719 }
720 if ((h->adx_data_start + h->adx_data_length) >
721 ad->adx_header.adx_total_size)
722 {
723 DBG_ERR("Bad length: %" PRIu32 "\n", h->adx_data_length);
724 return false;
725 }
726
727 if (h->adx_num_attrs > AD_XATTR_MAX_ENTRIES) {
728 DBG_ERR("Bad num xattrs: %" PRIu16 "\n", h->adx_num_attrs);
729 return false;
730 }
731
732 if (h->adx_num_attrs == 0) {
733 return true;
734 }
735
736 ad->adx_entries = talloc_zero_array(
737 ad, struct ad_xattr_entry, h->adx_num_attrs);
738 if (ad->adx_entries == NULL) {
739 return false;
740 }
741
742 hoff += AD_XATTR_HDR_SIZE;
743
744 for (i = 0; i < h->adx_num_attrs; i++) {
745 struct ad_xattr_entry *e = &ad->adx_entries[i];
746
747 hoff = (hoff + 3) & ~3;
748
749 e->adx_offset = RIVAL(p, hoff + 0);
750 e->adx_length = RIVAL(p, hoff + 4);
751 e->adx_flags = RSVAL(p, hoff + 8);
752 e->adx_namelen = *(p + hoff + 10);
753
754 if (e->adx_offset >= ad->adx_header.adx_total_size) {
755 DBG_ERR("Bad adx_offset: %" PRIx32 "\n",
756 e->adx_offset);
757 return false;
758 }
759
760 if ((e->adx_offset + e->adx_length) < e->adx_offset) {
761 DBG_ERR("Bad adx_length: %" PRIx32 "\n",
762 e->adx_length);
763 return false;
764 }
765
766 if ((e->adx_offset + e->adx_length) >
767 ad->adx_header.adx_total_size)
768 {
769 DBG_ERR("Bad adx_length: %" PRIx32 "\n",
770 e->adx_length);
771 return false;
772 }
773
774 if (e->adx_namelen == 0) {
775 DBG_ERR("Bad adx_namelen: %" PRIx32 "\n",
776 e->adx_namelen);
777 return false;
778 }
779 if ((hoff + 11 + e->adx_namelen) < hoff + 11) {
780 DBG_ERR("Bad adx_namelen: %" PRIx32 "\n",
781 e->adx_namelen);
782 return false;
783 }
784 if ((hoff + 11 + e->adx_namelen) >
785 ad->adx_header.adx_data_start)
786 {
787 DBG_ERR("Bad adx_namelen: %" PRIx32 "\n",
788 e->adx_namelen);
789 return false;
790 }
791
792 e->adx_name = talloc_strndup(ad->adx_entries,
793 p + hoff + 11,
794 e->adx_namelen);
795 if (e->adx_name == NULL) {
796 return false;
797 }
798
799 DBG_DEBUG("xattr [%s] offset [0x%x] size [0x%x]\n",
800 e->adx_name, e->adx_offset, e->adx_length);
801 dump_data(10, (uint8_t *)(ad->ad_data + e->adx_offset),
802 e->adx_length);
803
804 hoff += 11 + e->adx_namelen;
805 }
806
807 return true;
808 }
809
810 /**
811 * Unpack an AppleDouble blob into a struct adoble
812 **/
813 static bool ad_unpack(struct adouble *ad, const size_t nentries,
814 size_t filesize)
815 {
816 size_t bufsize = talloc_get_size(ad->ad_data);
817 size_t adentries, i;
818 uint32_t eid, len, off;
819 bool ok;
820
821 /*
822 * The size of the buffer ad->ad_data is checked when read, so
823 * we wouldn't have to check our own offsets, a few extra
824 * checks won't hurt though. We have to check the offsets we
825 * read from the buffer anyway.
826 */
827
828 if (bufsize < (AD_HEADER_LEN + (AD_ENTRY_LEN * nentries))) {
829 DEBUG(1, ("bad size\n"));
830 return false;
831 }
832
833 ad->ad_magic = RIVAL(ad->ad_data, 0);
834 ad->ad_version = RIVAL(ad->ad_data, ADEDOFF_VERSION);
835 if ((ad->ad_magic != AD_MAGIC) || (ad->ad_version != AD_VERSION)) {
836 DEBUG(1, ("wrong magic or version\n"));
837 return false;
838 }
839
840 adentries = RSVAL(ad->ad_data, ADEDOFF_NENTRIES);
841 if (adentries != nentries) {
842 DEBUG(1, ("invalid number of entries: %zu\n",
843 adentries));
844 return false;
845 }
846
847 /* now, read in the entry bits */
848 for (i = 0; i < adentries; i++) {
849 eid = RIVAL(ad->ad_data, AD_HEADER_LEN + (i * AD_ENTRY_LEN));
850 eid = get_eid(eid);
851 off = RIVAL(ad->ad_data, AD_HEADER_LEN + (i * AD_ENTRY_LEN) + 4);
852 len = RIVAL(ad->ad_data, AD_HEADER_LEN + (i * AD_ENTRY_LEN) + 8);
853
854 if (!eid || eid >= ADEID_MAX) {
855 DEBUG(1, ("bogus eid %d\n", eid));
856 return false;
857 }
858
859 /*
860 * All entries other than the resource fork are
861 * expected to be read into the ad_data buffer, so
862 * ensure the specified offset is within that bound
863 */
864 if ((off > bufsize) && (eid != ADEID_RFORK)) {
865 DEBUG(1, ("bogus eid %d: off: %" PRIu32 ", len: %" PRIu32 "\n",
866 eid, off, len));
867 return false;
868 }
869
870 /*
871 * All entries besides FinderInfo and resource fork
872 * must fit into the buffer. FinderInfo is special as
873 * it may be larger then the default 32 bytes (if it
874 * contains marshalled xattrs), but we will fixup that
875 * in ad_convert(). And the resource fork is never
876 * accessed directly by the ad_data buf (also see
877 * comment above) anyway.
878 */
879 if ((eid != ADEID_RFORK) &&
880 (eid != ADEID_FINDERI) &&
881 ((off + len) > bufsize)) {
882 DEBUG(1, ("bogus eid %d: off: %" PRIu32 ", len: %" PRIu32 "\n",
883 eid, off, len));
884 return false;
885 }
886
887 /*
888 * That would be obviously broken
889 */
890 if (off > filesize) {
891 DEBUG(1, ("bogus eid %d: off: %" PRIu32 ", len: %" PRIu32 "\n",
892 eid, off, len));
893 return false;
894 }
895
896 /*
897 * Check for any entry that has its end beyond the
898 * filesize.
899 */
900 if (off + len < off) {
901 DEBUG(1, ("offset wrap in eid %d: off: %" PRIu32
902 ", len: %" PRIu32 "\n",
903 eid, off, len));
904 return false;
905
906 }
907 if (off + len > filesize) {
908 /*
909 * If this is the resource fork entry, we fix
910 * up the length, for any other entry we bail
911 * out.
912 */
913 if (eid != ADEID_RFORK) {
914 DEBUG(1, ("bogus eid %d: off: %" PRIu32
915 ", len: %" PRIu32 "\n",
916 eid, off, len));
917 return false;
918 }
919
920 /*
921 * Fixup the resource fork entry by limiting
922 * the size to entryoffset - filesize.
923 */
924 len = filesize - off;
925 DEBUG(1, ("Limiting ADEID_RFORK: off: %" PRIu32
926 ", len: %" PRIu32 "\n", off, len));
927 }
928
929 ad->ad_eid[eid].ade_off = off;
930 ad->ad_eid[eid].ade_len = len;
931 }
932
933 ok = ad_unpack_xattrs(ad);
934 if (!ok) {
935 return false;
936 }
937
938 return true;
939 }
940
941 static bool ad_convert_xattr(struct adouble *ad,
942 const struct smb_filename *smb_fname,
943 char *map)
944 {
945 static struct char_mappings **string_replace_cmaps = NULL;
946 uint16_t i;
947 int saved_errno = 0;
948 NTSTATUS status;
949
950 if (ad->adx_header.adx_num_attrs == 0) {
951 return true;
952 }
953
954 if (string_replace_cmaps == NULL) {
955 const char **mappings = NULL;
956
957 mappings = str_list_make_v3_const(
958 talloc_tos(), fruit_catia_maps, NULL);
959 if (mappings == NULL) {
960 return false;
961 }
962 string_replace_cmaps = string_replace_init_map(mappings);
963 TALLOC_FREE(mappings);
964 }
965
966 for (i = 0; i < ad->adx_header.adx_num_attrs; i++) {
967 struct ad_xattr_entry *e = &ad->adx_entries[i];
968 char *mapped_name = NULL;
969 char *tmp = NULL;
970 struct smb_filename *stream_name = NULL;
971 files_struct *fsp = NULL;
972 ssize_t nwritten;
973
974 status = string_replace_allocate(ad->ad_handle->conn,
975 e->adx_name,
976 string_replace_cmaps,
977 talloc_tos(),
978 &mapped_name,
979 vfs_translate_to_windows);
980 if (!NT_STATUS_IS_OK(status) &&
981 !NT_STATUS_EQUAL(status, NT_STATUS_NONE_MAPPED))
982 {
983 DBG_ERR("string_replace_allocate failed\n");
984 return -1;
985 }
986
987 tmp = mapped_name;
988 mapped_name = talloc_asprintf(talloc_tos(), ":%s", tmp);
989 TALLOC_FREE(tmp);
990 if (mapped_name == NULL) {
991 return -1;
992 }
993
994 stream_name = synthetic_smb_fname(talloc_tos(),
995 smb_fname->base_name,
996 mapped_name,
997 NULL,
998 smb_fname->flags);
999 TALLOC_FREE(mapped_name);
1000 if (stream_name == NULL) {
1001 DBG_ERR("synthetic_smb_fname failed\n");
1002 return -1;
1003 }
1004
1005 DBG_DEBUG("stream_name: %s\n", smb_fname_str_dbg(stream_name));
1006
1007 status = SMB_VFS_CREATE_FILE(
1008 ad->ad_handle->conn, /* conn */
1009 NULL, /* req */
1010 0, /* root_dir_fid */
1011 stream_name, /* fname */
1012 FILE_GENERIC_WRITE, /* access_mask */
1013 FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
1014 FILE_OPEN_IF, /* create_disposition */
1015 0, /* create_options */
1016 0, /* file_attributes */
1017 INTERNAL_OPEN_ONLY, /* oplock_request */
1018 NULL, /* lease */
1019 0, /* allocation_size */
1020 0, /* private_flags */
1021 NULL, /* sd */
1022 NULL, /* ea_list */
1023 &fsp, /* result */
1024 NULL, /* psbuf */
1025 NULL, NULL); /* create context */
1026 TALLOC_FREE(stream_name);
1027 if (!NT_STATUS_IS_OK(status)) {
1028 DBG_ERR("SMB_VFS_CREATE_FILE failed\n");
1029 return -1;
1030 }
1031
1032 nwritten = SMB_VFS_PWRITE(fsp,
1033 map + e->adx_offset,
1034 e->adx_length,
1035 0);
1036 if (nwritten == -1) {
1037 DBG_ERR("SMB_VFS_PWRITE failed\n");
1038 saved_errno = errno;
1039 close_file(NULL, fsp, ERROR_CLOSE);
1040 errno = saved_errno;
1041 return -1;
1042 }
1043
1044 status = close_file(NULL, fsp, NORMAL_CLOSE);
1045 if (!NT_STATUS_IS_OK(status)) {
1046 return -1;
1047 }
1048 fsp = NULL;
1049 }
1050
1051 return true;
1052 }
1053
1054 /**
1055 * Convert from Apple's ._ file to Netatalk
1056 *
1057 * Apple's AppleDouble may contain a FinderInfo entry longer then 32
1058 * bytes containing packed xattrs. Netatalk can't deal with that, so
1059 * we simply discard the packed xattrs.
1060 *
1061 * @return -1 in case an error occurred, 0 if no conversion was done, 1
1062 * otherwise
1063 **/
1064 static int ad_convert(struct adouble *ad,
1065 const struct smb_filename *smb_fname,
1066 int fd)
1067 {
1068 int rc = 0;
1069 char *map = MAP_FAILED;
1070 size_t origlen;
1071 bool ok;
1072
1073 origlen = ad_getentryoff(ad, ADEID_RFORK) +
1074 ad_getentrylen(ad, ADEID_RFORK);
1075
1076 /* FIXME: direct use of mmap(), vfs_aio_fork does it too */
1077 map = mmap(NULL, origlen, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
1078 if (map == MAP_FAILED) {
1079 DEBUG(2, ("mmap AppleDouble: %s\n", strerror(errno)));
1080 rc = -1;
1081 goto exit;
1082 }
1083
1084 ok = ad_convert_xattr(ad, smb_fname, map);
1085 if (!ok) {
1086 munmap(map, origlen);
1087 return -1;
1088 }
1089
1090 if (ad_getentrylen(ad, ADEID_RFORK) > 0) {
1091 memmove(map + ad_getentryoff(ad, ADEID_FINDERI) + ADEDLEN_FINDERI,
1092 map + ad_getentryoff(ad, ADEID_RFORK),
1093 ad_getentrylen(ad, ADEID_RFORK));
1094 }
1095
1096 ad_setentrylen(ad, ADEID_FINDERI, ADEDLEN_FINDERI);
1097 ad_setentryoff(ad, ADEID_RFORK,
1098 ad_getentryoff(ad, ADEID_FINDERI) + ADEDLEN_FINDERI);
1099
1100 /*
1101 * FIXME: direct ftruncate(), but we don't have a fsp for the
1102 * VFS call
1103 */
1104 rc = ftruncate(fd, ad_getentryoff(ad, ADEID_RFORK)
1105 + ad_getentrylen(ad, ADEID_RFORK));
1106
1107 exit:
1108 if (map != MAP_FAILED) {
1109 munmap(map, origlen);
1110 }
1111 return rc;
1112 }
1113
1114 /**
1115 * Read and parse Netatalk AppleDouble metadata xattr
1116 **/
1117 static ssize_t ad_read_meta(struct adouble *ad,
1118 const struct smb_filename *smb_fname)
1119 {
1120 int rc = 0;
1121 ssize_t ealen;
1122 bool ok;
1123
1124 DEBUG(10, ("reading meta xattr for %s\n", smb_fname->base_name));
1125
1126 ealen = SMB_VFS_GETXATTR(ad->ad_handle->conn, smb_fname,
1127 AFPINFO_EA_NETATALK, ad->ad_data,
1128 AD_DATASZ_XATTR);
1129 if (ealen == -1) {
1130 switch (errno) {
1131 case ENOATTR:
1132 case ENOENT:
1133 if (errno == ENOATTR) {
1134 errno = ENOENT;
1135 }
1136 rc = -1;
1137 goto exit;
1138 default:
1139 DEBUG(2, ("error reading meta xattr: %s\n",
1140 strerror(errno)));
1141 rc = -1;
1142 goto exit;
1143 }
1144 }
1145 if (ealen != AD_DATASZ_XATTR) {
1146 DEBUG(2, ("bad size %zd\n", ealen));
1147 errno = EINVAL;
1148 rc = -1;
1149 goto exit;
1150 }
1151
1152 /* Now parse entries */
1153 ok = ad_unpack(ad, ADEID_NUM_XATTR, AD_DATASZ_XATTR);
1154 if (!ok) {
1155 DEBUG(2, ("invalid AppleDouble metadata xattr\n"));
1156 errno = EINVAL;
1157 rc = -1;
1158 goto exit;
1159 }
1160
1161 if (!ad_getentryoff(ad, ADEID_FINDERI)
1162 || !ad_getentryoff(ad, ADEID_COMMENT)
1163 || !ad_getentryoff(ad, ADEID_FILEDATESI)
1164 || !ad_getentryoff(ad, ADEID_AFPFILEI)
1165 || !ad_getentryoff(ad, ADEID_PRIVDEV)
1166 || !ad_getentryoff(ad, ADEID_PRIVINO)
1167 || !ad_getentryoff(ad, ADEID_PRIVSYN)
1168 || !ad_getentryoff(ad, ADEID_PRIVID)) {
1169 DEBUG(2, ("invalid AppleDouble metadata xattr\n"));
1170 errno = EINVAL;
1171 rc = -1;
1172 goto exit;
1173 }
1174
1175 exit:
1176 DEBUG(10, ("reading meta xattr for %s, rc: %d\n",
1177 smb_fname->base_name, rc));
1178
1179 if (rc != 0) {
1180 ealen = -1;
1181 if (errno == EINVAL) {
1182 become_root();
1183 removexattr(smb_fname->base_name, AFPINFO_EA_NETATALK);
1184 unbecome_root();
1185 errno = ENOENT;
1186 }
1187 }
1188 return ealen;
1189 }
1190
1191 static int ad_open_rsrc_xattr(const struct smb_filename *smb_fname,
1192 int flags,
1193 mode_t mode)
1194 {
1195 #ifdef HAVE_ATTROPEN
1196 /* FIXME: direct Solaris xattr syscall */
1197 return attropen(smb_fname->base_name,
1198 AFPRESOURCE_EA_NETATALK, flags, mode);
1199 #else
1200 errno = ENOSYS;
1201 return -1;
1202 #endif
1203 }
1204
1205 static int ad_open_rsrc_adouble(const struct smb_filename *smb_fname,
1206 int flags,
1207 mode_t mode)
1208 {
1209 int ret;
1210 int fd;
1211 struct smb_filename *adp_smb_fname = NULL;
1212
1213 ret = adouble_path(talloc_tos(), smb_fname, &adp_smb_fname);
1214 if (ret != 0) {
1215 return -1;
1216 }
1217
1218 fd = open(adp_smb_fname->base_name, flags, mode);
1219 TALLOC_FREE(adp_smb_fname);
1220
1221 return fd;
1222 }
1223
1224 static int ad_open_rsrc(vfs_handle_struct *handle,
1225 const struct smb_filename *smb_fname,
1226 int flags,
1227 mode_t mode)
1228 {
1229 struct fruit_config_data *config = NULL;
1230 int fd;
1231
1232 SMB_VFS_HANDLE_GET_DATA(handle, config,
1233 struct fruit_config_data, return -1);
1234
1235 if (config->rsrc == FRUIT_RSRC_XATTR) {
1236 fd = ad_open_rsrc_xattr(smb_fname, flags, mode);
1237 } else {
1238 fd = ad_open_rsrc_adouble(smb_fname, flags, mode);
1239 }
1240
1241 return fd;
1242 }
1243
1244 /*
1245 * Here's the deal: for ADOUBLE_META we can do without an fd as we can issue
1246 * path based xattr calls. For ADOUBLE_RSRC however we need a full-fledged fd
1247 * for file IO on the ._ file.
1248 */
1249 static int ad_open(vfs_handle_struct *handle,
1250 struct adouble *ad,
1251 files_struct *fsp,
1252 const struct smb_filename *smb_fname,
1253 int flags,
1254 mode_t mode)
1255 {
1256 int fd;
1257
1258 DBG_DEBUG("Path [%s] type [%s]\n", smb_fname->base_name,
1259 ad->ad_type == ADOUBLE_META ? "meta" : "rsrc");
1260
1261 if (ad->ad_type == ADOUBLE_META) {
1262 return 0;
1263 }
1264
1265 if ((fsp != NULL) && (fsp->fh != NULL) && (fsp->fh->fd != -1)) {
1266 ad->ad_fd = fsp->fh->fd;
1267 ad->ad_opened = false;
1268 return 0;
1269 }
1270
1271 fd = ad_open_rsrc(handle, smb_fname, flags, mode);
1272 if (fd == -1) {
1273 return -1;
1274 }
1275 ad->ad_opened = true;
1276 ad->ad_fd = fd;
1277
1278 DBG_DEBUG("Path [%s] type [%s] fd [%d]\n",
1279 smb_fname->base_name,
1280 ad->ad_type == ADOUBLE_META ? "meta" : "rsrc", fd);
1281
1282 return 0;
1283 }
1284
1285 static ssize_t ad_read_rsrc_xattr(struct adouble *ad)
1286 {
1287 int ret;
1288 SMB_STRUCT_STAT st;
1289
1290 /* FIXME: direct sys_fstat(), don't have an fsp */
1291 ret = sys_fstat(ad->ad_fd, &st,
1292 lp_fake_directory_create_times(
1293 SNUM(ad->ad_handle->conn)));
1294 if (ret != 0) {
1295 return -1;
1296 }
1297
1298 ad_setentrylen(ad, ADEID_RFORK, st.st_ex_size);
1299 return st.st_ex_size;
1300 }
1301
1302 static ssize_t ad_read_rsrc_adouble(struct adouble *ad,
1303 const struct smb_filename *smb_fname)
1304 {
1305 SMB_STRUCT_STAT sbuf;
1306 char *p_ad = NULL;
1307 AfpInfo *ai = NULL;
1308 DATA_BLOB aiblob;
1309 struct smb_filename *stream_name = NULL;
1310 files_struct *fsp = NULL;
1311 ssize_t len;
1312 size_t size;
1313 ssize_t nwritten;
1314 NTSTATUS status;
1315 int saved_errno = 0;
1316 int ret;
1317 bool ok;
1318
1319 ret = sys_fstat(ad->ad_fd, &sbuf, lp_fake_directory_create_times(
1320 SNUM(ad->ad_handle->conn)));
1321 if (ret != 0) {
1322 return -1;
1323 }
1324
1325 /*
1326 * AppleDouble file header content and size, two cases:
1327 *
1328 * - without xattrs it is exactly AD_DATASZ_DOT_UND (82) bytes large
1329 * - with embedded xattrs it can be larger, up to AD_XATTR_MAX_HDR_SIZE
1330 *
1331 * Read as much as we can up to AD_XATTR_MAX_HDR_SIZE.
1332 */
1333 size = sbuf.st_ex_size;
1334 if (size > talloc_array_length(ad->ad_data)) {
1335 if (size > AD_XATTR_MAX_HDR_SIZE) {
1336 size = AD_XATTR_MAX_HDR_SIZE;
1337 }
1338 p_ad = talloc_realloc(ad, ad->ad_data, char, size);
1339 if (p_ad == NULL) {
1340 return -1;
1341 }
1342 ad->ad_data = p_ad;
1343 }
1344
1345 len = sys_pread(ad->ad_fd, ad->ad_data,
1346 talloc_array_length(ad->ad_data), 0);
1347 if (len != talloc_array_length(ad->ad_data)) {
1348 DBG_NOTICE("%s %s: bad size: %zd\n",
1349 smb_fname->base_name, strerror(errno), len);
1350 return -1;
1351 }
1352
1353 /* Now parse entries */
1354 ok = ad_unpack(ad, ADEID_NUM_DOT_UND, sbuf.st_ex_size);
1355 if (!ok) {
1356 DBG_ERR("invalid AppleDouble resource %s\n",
1357 smb_fname->base_name);
1358 errno = EINVAL;
1359 return -1;
1360 }
1361
1362 if ((ad_getentryoff(ad, ADEID_FINDERI) != ADEDOFF_FINDERI_DOT_UND)
1363 || (ad_getentrylen(ad, ADEID_FINDERI) < ADEDLEN_FINDERI)
1364 || (ad_getentryoff(ad, ADEID_RFORK) < ADEDOFF_RFORK_DOT_UND)) {
1365 DBG_ERR("invalid AppleDouble resource %s\n",
1366 smb_fname->base_name);
1367 errno = EINVAL;
1368 return -1;
1369 }
1370
1371 if (ad_getentrylen(ad, ADEID_FINDERI) == ADEDLEN_FINDERI) {
1372 return len;
1373 }
1374
1375 /*
1376 * Try to fixup AppleDouble files created by OS X with xattrs
1377 * appended to the ADEID_FINDERI entry. We simply remove the
1378 * xattrs blob, this means any fancy xattr that was stored
1379 * there is lost.
1380 */
1381
1382 ret = ad_convert(ad, smb_fname, ad->ad_fd);
1383 if (ret != 0) {
1384 DBG_WARNING("Failed to convert [%s]\n", smb_fname->base_name);
1385 return len;
1386 }
1387
1388 ok = ad_pack(ad);
1389 if (!ok) {
1390 DBG_WARNING("ad_pack [%s] failed\n", smb_fname->base_name);
1391 return -1;
1392 }
1393
1394 len = sys_pwrite(ad->ad_fd, ad->ad_data, AD_DATASZ_DOT_UND, 0);
1395 if (len != AD_DATASZ_DOT_UND) {
1396 DBG_ERR("%s: bad size: %zd\n", smb_fname->base_name, len);
1397 return -1;
1398 }
1399
1400 p_ad = ad_get_entry(ad, ADEID_FINDERI);
1401 if (p_ad == NULL) {
1402 return -1;
1403 }
1404
1405 ai = afpinfo_new(talloc_tos());
1406 if (ai == NULL) {
1407 return -1;
1408 }
1409
1410 memcpy(ai->afpi_FinderInfo, p_ad, ADEDLEN_FINDERI);
1411
1412 aiblob = data_blob_talloc(talloc_tos(), NULL, AFP_INFO_SIZE);
1413 if (aiblob.data == NULL) {
1414 TALLOC_FREE(ai);
1415 return -1;
1416 }
1417
1418 size = afpinfo_pack(ai, (char *)aiblob.data);
1419 TALLOC_FREE(ai);
1420 if (size != AFP_INFO_SIZE) {
1421 return -1;
1422 }
1423
1424 stream_name = synthetic_smb_fname(talloc_tos(),
1425 smb_fname->base_name,
1426 AFPINFO_STREAM,
1427 NULL,
1428 smb_fname->flags);
1429 if (stream_name == NULL) {
1430 data_blob_free(&aiblob);
1431 DBG_ERR("synthetic_smb_fname failed\n");
1432 return -1;
1433 }
1434
1435 DBG_DEBUG("stream_name: %s\n", smb_fname_str_dbg(stream_name));
1436
1437 status = SMB_VFS_CREATE_FILE(
1438 ad->ad_handle->conn, /* conn */
1439 NULL, /* req */
1440 0, /* root_dir_fid */
1441 stream_name, /* fname */
1442 FILE_GENERIC_WRITE, /* access_mask */
1443 FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
1444 FILE_OPEN_IF, /* create_disposition */
1445 0, /* create_options */
1446 0, /* file_attributes */
1447 INTERNAL_OPEN_ONLY, /* oplock_request */
1448 NULL, /* lease */
1449 0, /* allocation_size */
1450 0, /* private_flags */
1451 NULL, /* sd */
1452 NULL, /* ea_list */
1453 &fsp, /* result */
1454 NULL, /* psbuf */
1455 NULL, NULL); /* create context */
1456 TALLOC_FREE(stream_name);
1457 if (!NT_STATUS_IS_OK(status)) {
1458 DBG_ERR("SMB_VFS_CREATE_FILE failed\n");
1459 return -1;
1460 }
1461
1462 nwritten = SMB_VFS_PWRITE(fsp,
1463 aiblob.data,
1464 aiblob.length,
1465 0);
1466 if (nwritten == -1) {
1467 DBG_ERR("SMB_VFS_PWRITE failed\n");
1468 saved_errno = errno;
1469 close_file(NULL, fsp, ERROR_CLOSE);
1470 errno = saved_errno;
1471 return -1;
1472 }
1473
1474 status = close_file(NULL, fsp, NORMAL_CLOSE);
1475 if (!NT_STATUS_IS_OK(status)) {
1476 return -1;
1477 }
1478 fsp = NULL;
1479
1480 return len;
1481 }
1482
1483 /**
1484 * Read and parse resource fork, either ._ AppleDouble file or xattr
1485 **/
1486 static ssize_t ad_read_rsrc(struct adouble *ad,
1487 const struct smb_filename *smb_fname)
1488 {
1489 struct fruit_config_data *config = NULL;
1490 ssize_t len;
1491
1492 SMB_VFS_HANDLE_GET_DATA(ad->ad_handle, config,
1493 struct fruit_config_data, return -1);
1494
1495 if (config->rsrc == FRUIT_RSRC_XATTR) {
1496 len = ad_read_rsrc_xattr(ad);
1497 } else {
1498 len = ad_read_rsrc_adouble(ad, smb_fname);
1499 }
1500
1501 return len;
1502 }
1503
1504 /**
1505 * Read and unpack an AppleDouble metadata xattr or resource
1506 **/
1507 static ssize_t ad_read(struct adouble *ad, const struct smb_filename *smb_fname)
1508 {
1509 switch (ad->ad_type) {
1510 case ADOUBLE_META:
1511 return ad_read_meta(ad, smb_fname);
1512 case ADOUBLE_RSRC:
1513 return ad_read_rsrc(ad, smb_fname);
1514 default:
1515 return -1;
1516 }
1517 }
1518
1519 static int adouble_destructor(struct adouble *ad)
1520 {
1521 if ((ad->ad_fd != -1) && ad->ad_opened) {
1522 close(ad->ad_fd);
1523 ad->ad_fd = -1;
1524 }
1525 return 0;
1526 }
1527
1528 /**
1529 * Allocate a struct adouble without initialiing it
1530 *
1531 * The struct is either hang of the fsp extension context or if fsp is
1532 * NULL from ctx.
1533 *
1534 * @param[in] ctx talloc context
1535 * @param[in] handle vfs handle
1536 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
1537 *
1538 * @return adouble handle
1539 **/
1540 static struct adouble *ad_alloc(TALLOC_CTX *ctx, vfs_handle_struct *handle,
1541 adouble_type_t type)
1542 {
1543 int rc = 0;
1544 size_t adsize = 0;
1545 struct adouble *ad;
1546 struct fruit_config_data *config;
1547
1548 SMB_VFS_HANDLE_GET_DATA(handle, config,
1549 struct fruit_config_data, return NULL);
1550
1551 switch (type) {
1552 case ADOUBLE_META:
1553 adsize = AD_DATASZ_XATTR;
1554 break;
1555 case ADOUBLE_RSRC:
1556 if (config->rsrc == FRUIT_RSRC_ADFILE) {
1557 adsize = AD_DATASZ_DOT_UND;
1558 }
1559 break;
1560 default:
1561 return NULL;
1562 }
1563
1564 ad = talloc_zero(ctx, struct adouble);
1565 if (ad == NULL) {
1566 rc = -1;
1567 goto exit;
1568 }
1569
1570 if (adsize) {
1571 ad->ad_data = talloc_zero_array(ad, char, adsize);
1572 if (ad->ad_data == NULL) {
1573 rc = -1;
1574 goto exit;
1575 }
1576 }
1577
1578 ad->ad_handle = handle;
1579 ad->ad_type = type;
1580 ad->ad_magic = AD_MAGIC;
1581 ad->ad_version = AD_VERSION;
1582 ad->ad_fd = -1;
1583
1584 talloc_set_destructor(ad, adouble_destructor);
1585
1586 exit:
1587 if (rc != 0) {
1588 TALLOC_FREE(ad);
1589 }
1590 return ad;
1591 }
1592
1593 /**
1594 * Allocate and initialize a new struct adouble
1595 *
1596 * @param[in] ctx talloc context
1597 * @param[in] handle vfs handle
1598 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
1599 *
1600 * @return adouble handle, initialized
1601 **/
1602 static struct adouble *ad_init(TALLOC_CTX *ctx, vfs_handle_struct *handle,
1603 adouble_type_t type)
1604 {
1605 int rc = 0;
1606 const struct ad_entry_order *eid;
1607 struct adouble *ad = NULL;
1608 struct fruit_config_data *config;
1609 time_t t = time(NULL);
1610
1611 SMB_VFS_HANDLE_GET_DATA(handle, config,
1612 struct fruit_config_data, return NULL);
1613
1614 switch (type) {
1615 case ADOUBLE_META:
1616 eid = entry_order_meta_xattr;
1617 break;
1618 case ADOUBLE_RSRC:
1619 if (config->rsrc == FRUIT_RSRC_ADFILE) {
1620 eid = entry_order_dot_und;
1621 } else {
1622 eid = entry_order_rsrc_xattr;
1623 }
1624 break;
1625 default:
1626 return NULL;
1627 }
1628
1629 ad = ad_alloc(ctx, handle, type);
1630 if (ad == NULL) {
1631 return NULL;
1632 }
1633
1634 while (eid->id) {
1635 ad->ad_eid[eid->id].ade_off = eid->offset;
1636 ad->ad_eid[eid->id].ade_len = eid->len;
1637 eid++;
1638 }
1639
1640 /* put something sane in the date fields */
1641 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX, t);
1642 ad_setdate(ad, AD_DATE_MODIFY | AD_DATE_UNIX, t);
1643 ad_setdate(ad, AD_DATE_ACCESS | AD_DATE_UNIX, t);
1644 ad_setdate(ad, AD_DATE_BACKUP, htonl(AD_DATE_START));
1645
1646 if (rc != 0) {
1647 TALLOC_FREE(ad);
1648 }
1649 return ad;
1650 }
1651
1652 static struct adouble *ad_get_internal(TALLOC_CTX *ctx,
1653 vfs_handle_struct *handle,
1654 files_struct *fsp,
1655 const struct smb_filename *smb_fname,
1656 adouble_type_t type)
1657 {
1658 int rc = 0;
1659 ssize_t len;
1660 struct adouble *ad = NULL;
1661 int mode;
1662
1663 if (fsp != NULL) {
1664 smb_fname = fsp->base_fsp->fsp_name;
1665 }
1666
1667 DEBUG(10, ("ad_get(%s) called for %s\n",
1668 type == ADOUBLE_META ? "meta" : "rsrc",
1669 smb_fname->base_name));
1670
1671 ad = ad_alloc(ctx, handle, type);
1672 if (ad == NULL) {
1673 rc = -1;
1674 goto exit;
1675 }
1676
1677 /* Try rw first so we can use the fd in ad_convert() */
1678 mode = O_RDWR;
1679
1680 rc = ad_open(handle, ad, fsp, smb_fname, mode, 0);
1681 if (rc == -1 && ((errno == EROFS) || (errno == EACCES))) {
1682 mode = O_RDONLY;
1683 rc = ad_open(handle, ad, fsp, smb_fname, mode, 0);
1684 }
1685 if (rc == -1) {
1686 DBG_DEBUG("ad_open [%s] error [%s]\n",
1687 smb_fname->base_name, strerror(errno));
1688 goto exit;
1689
1690 }
1691
1692 len = ad_read(ad, smb_fname);
1693 if (len == -1) {
1694 DEBUG(10, ("error reading AppleDouble for %s\n",
1695 smb_fname->base_name));
1696 rc = -1;
1697 goto exit;
1698 }
1699
1700 exit:
1701 DEBUG(10, ("ad_get(%s) for %s returning %d\n",
1702 type == ADOUBLE_META ? "meta" : "rsrc",
1703 smb_fname->base_name, rc));
1704
1705 if (rc != 0) {
1706 TALLOC_FREE(ad);
1707 }
1708 return ad;
1709 }
1710
1711 /**
1712 * Return AppleDouble data for a file
1713 *
1714 * @param[in] ctx talloc context
1715 * @param[in] handle vfs handle
1716 * @param[in] smb_fname pathname to file or directory
1717 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
1718 *
1719 * @return talloced struct adouble or NULL on error
1720 **/
1721 static struct adouble *ad_get(TALLOC_CTX *ctx,
1722 vfs_handle_struct *handle,
1723 const struct smb_filename *smb_fname,
1724 adouble_type_t type)
1725 {
1726 return ad_get_internal(ctx, handle, NULL, smb_fname, type);
1727 }
1728
1729 /**
1730 * Return AppleDouble data for a file
1731 *
1732 * @param[in] ctx talloc context
1733 * @param[in] handle vfs handle
1734 * @param[in] fsp fsp to use for IO
1735 * @param[in] type type of AppleDouble, ADOUBLE_META or ADOUBLE_RSRC
1736 *
1737 * @return talloced struct adouble or NULL on error
1738 **/
1739 static struct adouble *ad_fget(TALLOC_CTX *ctx, vfs_handle_struct *handle,
1740 files_struct *fsp, adouble_type_t type)
1741 {
1742 return ad_get_internal(ctx, handle, fsp, NULL, type);
1743 }
1744
1745 /**
1746 * Set AppleDouble metadata on a file or directory
1747 *
1748 * @param[in] ad adouble handle
1749 *
1750 * @param[in] smb_fname pathname to file or directory
1751 *
1752 * @return status code, 0 means success
1753 **/
1754 static int ad_set(struct adouble *ad, const struct smb_filename *smb_fname)
1755 {
1756 bool ok;
1757 int ret;
1758
1759 DBG_DEBUG("Path [%s]\n", smb_fname->base_name);
1760
1761 if (ad->ad_type != ADOUBLE_META) {
1762 DBG_ERR("ad_set on [%s] used with ADOUBLE_RSRC\n",
1763 smb_fname->base_name);
1764 return -1;
1765 }
1766
1767 ok = ad_pack(ad);
1768 if (!ok) {
1769 return -1;
1770 }
1771
1772 ret = SMB_VFS_SETXATTR(ad->ad_handle->conn,
1773 smb_fname,
1774 AFPINFO_EA_NETATALK,
1775 ad->ad_data,
1776 AD_DATASZ_XATTR, 0);
1777
1778 DBG_DEBUG("Path [%s] ret [%d]\n", smb_fname->base_name, ret);
1779
1780 return ret;
1781 }
1782
1783 /**
1784 * Set AppleDouble metadata on a file or directory
1785 *
1786 * @param[in] ad adouble handle
1787 * @param[in] fsp file handle
1788 *
1789 * @return status code, 0 means success
1790 **/
1791 static int ad_fset(struct adouble *ad, files_struct *fsp)
1792 {
1793 int rc = -1;
1794 ssize_t len;
1795 bool ok;
1796
1797 DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
1798
1799 if ((fsp == NULL)
1800 || (fsp->fh == NULL)
1801 || (fsp->fh->fd == -1))
1802 {
1803 smb_panic("bad fsp");
1804 }
1805
1806 ok = ad_pack(ad);
1807 if (!ok) {
1808 return -1;
1809 }
1810
1811 switch (ad->ad_type) {
1812 case ADOUBLE_META:
1813 rc = SMB_VFS_NEXT_SETXATTR(ad->ad_handle,
1814 fsp->fsp_name,
1815 AFPINFO_EA_NETATALK,
1816 ad->ad_data,
1817 AD_DATASZ_XATTR, 0);
1818 break;
1819
1820 case ADOUBLE_RSRC:
1821 len = SMB_VFS_NEXT_PWRITE(ad->ad_handle,
1822 fsp,
1823 ad->ad_data,
1824 AD_DATASZ_DOT_UND,
1825 0);
1826 if (len != AD_DATASZ_DOT_UND) {
1827 DBG_ERR("short write on %s: %zd", fsp_str_dbg(fsp), len);
1828 return -1;
1829 }
1830 rc = 0;
1831 break;
1832
1833 default:
1834 return -1;
1835 }
1836
1837 DBG_DEBUG("Path [%s] rc [%d]\n", fsp_str_dbg(fsp), rc);
1838
1839 return rc;
1840 }
1841
1842 /*****************************************************************************
1843 * Helper functions
1844 *****************************************************************************/
1845
1846 static bool is_afpinfo_stream(const struct smb_filename *smb_fname)
1847 {
1848 if (strncasecmp_m(smb_fname->stream_name,
1849 AFPINFO_STREAM_NAME,
1850 strlen(AFPINFO_STREAM_NAME)) == 0) {
1851 return true;
1852 }
1853 return false;
1854 }
1855
1856 static bool is_afpresource_stream(const struct smb_filename *smb_fname)
1857 {
1858 if (strncasecmp_m(smb_fname->stream_name,
1859 AFPRESOURCE_STREAM_NAME,
1860 strlen(AFPRESOURCE_STREAM_NAME)) == 0) {
1861 return true;
1862 }
1863 return false;
1864 }
1865
1866 /**
1867 * Test whether stream is an Apple stream, not used atm
1868 **/
1869 #if 0
1870 static bool is_apple_stream(const struct smb_filename *smb_fname)
1871 {
1872 if (is_afpinfo_stream(smb_fname)) {
1873 return true;
1874 }
1875 if (is_afpresource_stream(smb_fname)) {
1876 return true;
1877 }
1878 return false;
1879 }
1880 #endif
1881
1882 /**
1883 * Initialize config struct from our smb.conf config parameters
1884 **/
1885 static int init_fruit_config(vfs_handle_struct *handle)
1886 {
1887 struct fruit_config_data *config;
1888 int enumval;
1889 const char *tm_size_str = NULL;
1890
1891 config = talloc_zero(handle->conn, struct fruit_config_data);
1892 if (!config) {
1893 DEBUG(1, ("talloc_zero() failed\n"));
1894 errno = ENOMEM;
1895 return -1;
1896 }
1897
1898 /*
1899 * Versions up to Samba 4.5.x had a spelling bug in the
1900 * fruit:resource option calling lp_parm_enum with
1901 * "res*s*ource" (ie two s).
1902 *
1903 * In Samba 4.6 we accept both the wrong and the correct
1904 * spelling, in Samba 4.7 the bad spelling will be removed.
1905 */
1906 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1907 "ressource", fruit_rsrc, FRUIT_RSRC_ADFILE);
1908 if (enumval == -1) {
1909 DEBUG(1, ("value for %s: resource type unknown\n",
1910 FRUIT_PARAM_TYPE_NAME));
1911 return -1;
1912 }
1913 config->rsrc = (enum fruit_rsrc)enumval;
1914
1915 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1916 "resource", fruit_rsrc, enumval);
1917 if (enumval == -1) {
1918 DEBUG(1, ("value for %s: resource type unknown\n",
1919 FRUIT_PARAM_TYPE_NAME));
1920 return -1;
1921 }
1922 config->rsrc = (enum fruit_rsrc)enumval;
1923
1924 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1925 "metadata", fruit_meta, FRUIT_META_NETATALK);
1926 if (enumval == -1) {
1927 DEBUG(1, ("value for %s: metadata type unknown\n",
1928 FRUIT_PARAM_TYPE_NAME));
1929 return -1;
1930 }
1931 config->meta = (enum fruit_meta)enumval;
1932
1933 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1934 "locking", fruit_locking, FRUIT_LOCKING_NONE);
1935 if (enumval == -1) {
1936 DEBUG(1, ("value for %s: locking type unknown\n",
1937 FRUIT_PARAM_TYPE_NAME));
1938 return -1;
1939 }
1940 config->locking = (enum fruit_locking)enumval;
1941
1942 enumval = lp_parm_enum(SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1943 "encoding", fruit_encoding, FRUIT_ENC_PRIVATE);
1944 if (enumval == -1) {
1945 DEBUG(1, ("value for %s: encoding type unknown\n",
1946 FRUIT_PARAM_TYPE_NAME));
1947 return -1;
1948 }
1949 config->encoding = (enum fruit_encoding)enumval;
1950
1951 if (config->rsrc == FRUIT_RSRC_ADFILE) {
1952 config->veto_appledouble = lp_parm_bool(SNUM(handle->conn),
1953 FRUIT_PARAM_TYPE_NAME,
1954 "veto_appledouble",
1955 true);
1956 }
1957
1958 config->use_aapl = lp_parm_bool(
1959 -1, FRUIT_PARAM_TYPE_NAME, "aapl", true);
1960
1961 config->time_machine = lp_parm_bool(
1962 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME, "time machine", false);
1963
1964 config->unix_info_enabled = lp_parm_bool(
1965 -1, FRUIT_PARAM_TYPE_NAME, "nfs_aces", true);
1966
1967 config->use_copyfile = lp_parm_bool(-1, FRUIT_PARAM_TYPE_NAME,
1968 "copyfile", false);
1969
1970 config->posix_rename = lp_parm_bool(
1971 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME, "posix_rename", true);
1972
1973 config->aapl_zero_file_id =
1974 lp_parm_bool(-1, FRUIT_PARAM_TYPE_NAME, "zero_file_id", true);
1975
1976 config->readdir_attr_rsize = lp_parm_bool(
1977 SNUM(handle->conn), "readdir_attr", "aapl_rsize", true);
1978
1979 config->readdir_attr_finder_info = lp_parm_bool(
1980 SNUM(handle->conn), "readdir_attr", "aapl_finder_info", true);
1981
1982 config->readdir_attr_max_access = lp_parm_bool(
1983 SNUM(handle->conn), "readdir_attr", "aapl_max_access", true);
1984
1985 config->model = lp_parm_const_string(
1986 -1, FRUIT_PARAM_TYPE_NAME, "model", "MacSamba");
1987
1988 tm_size_str = lp_parm_const_string(
1989 SNUM(handle->conn), FRUIT_PARAM_TYPE_NAME,
1990 "time machine max size", NULL);
1991 if (tm_size_str != NULL) {
1992 config->time_machine_max_size = conv_str_size(tm_size_str);
1993 }
1994
1995 SMB_VFS_HANDLE_SET_DATA(handle, config,
1996 NULL, struct fruit_config_data,
1997 return -1);
1998
1999 return 0;
2000 }
2001
2002 /**
2003 * Prepend "._" to a basename
2004 * Return a new struct smb_filename with stream_name == NULL.
2005 **/
2006 static int adouble_path(TALLOC_CTX *ctx,
2007 const struct smb_filename *smb_fname_in,
2008 struct smb_filename **pp_smb_fname_out)
2009 {
2010 char *parent;
2011 const char *base;
2012 struct smb_filename *smb_fname = cp_smb_filename(ctx,
2013 smb_fname_in);
2014
2015 if (smb_fname == NULL) {
2016 return -1;
2017 }
2018
2019 /* We need streamname to be NULL */
2020 TALLOC_FREE(smb_fname->stream_name);
2021
2022 /* And we're replacing base_name. */
2023 TALLOC_FREE(smb_fname->base_name);
2024
2025 if (!parent_dirname(smb_fname, smb_fname_in->base_name,
2026 &parent, &base)) {
2027 TALLOC_FREE(smb_fname);
2028 return -1;
2029 }
2030
2031 smb_fname->base_name = talloc_asprintf(smb_fname,
2032 "%s/._%s", parent, base);
2033 if (smb_fname->base_name == NULL) {
2034 TALLOC_FREE(smb_fname);
2035 return -1;
2036 }
2037
2038 *pp_smb_fname_out = smb_fname;
2039
2040 return 0;
2041 }
2042
2043 /**
2044 * Allocate and initialize an AfpInfo struct
2045 **/
2046 static AfpInfo *afpinfo_new(TALLOC_CTX *ctx)
2047 {
2048 AfpInfo *ai = talloc_zero(ctx, AfpInfo);
2049 if (ai == NULL) {
2050 return NULL;
2051 }
2052 ai->afpi_Signature = AFP_Signature;
2053 ai->afpi_Version = AFP_Version;
2054 ai->afpi_BackupTime = AD_DATE_START;
2055 return ai;
2056 }
2057
2058 /**
2059 * Pack an AfpInfo struct into a buffer
2060 *
2061 * Buffer size must be at least AFP_INFO_SIZE
2062 * Returns size of packed buffer
2063 **/
2064 static ssize_t afpinfo_pack(const AfpInfo *ai, char *buf)
2065 {
2066 memset(buf, 0, AFP_INFO_SIZE);
2067
2068 RSIVAL(buf, 0, ai->afpi_Signature);
2069 RSIVAL(buf, 4, ai->afpi_Version);
2070 RSIVAL(buf, 12, ai->afpi_BackupTime);
2071 memcpy(buf + 16, ai->afpi_FinderInfo, sizeof(ai->afpi_FinderInfo));
2072
2073 return AFP_INFO_SIZE;
2074 }
2075
2076 /**
2077 * Unpack a buffer into a AfpInfo structure
2078 *
2079 * Buffer size must be at least AFP_INFO_SIZE
2080 * Returns allocated AfpInfo struct
2081 **/
2082 static AfpInfo *afpinfo_unpack(TALLOC_CTX *ctx, const void *data)
2083 {
2084 AfpInfo *ai = talloc_zero(ctx, AfpInfo);
2085 if (ai == NULL) {
2086 return NULL;
2087 }
2088
2089 ai->afpi_Signature = RIVAL(data, 0);
2090 ai->afpi_Version = RIVAL(data, 4);
2091 ai->afpi_BackupTime = RIVAL(data, 12);
2092 memcpy(ai->afpi_FinderInfo, (const char *)data + 16,
2093 sizeof(ai->afpi_FinderInfo));
2094
2095 if (ai->afpi_Signature != AFP_Signature
2096 || ai->afpi_Version != AFP_Version) {
2097 DEBUG(1, ("Bad AfpInfo signature or version\n"));
2098 TALLOC_FREE(ai);
2099 }
2100
2101 return ai;
2102 }
2103
2104 /**
2105 * Fake an inode number from the md5 hash of the (xattr) name
2106 **/
2107 static SMB_INO_T fruit_inode(const SMB_STRUCT_STAT *sbuf, const char *sname)
2108 {
2109 MD5_CTX ctx;
2110 unsigned char hash[16];
2111 SMB_INO_T result;
2112 char *upper_sname;
2113
2114 upper_sname = talloc_strdup_upper(talloc_tos(), sname);
2115 SMB_ASSERT(upper_sname != NULL);
2116
2117 MD5Init(&ctx);
2118 MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_dev),
2119 sizeof(sbuf->st_ex_dev));
2120 MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_ino),
2121 sizeof(sbuf->st_ex_ino));
2122 MD5Update(&ctx, (unsigned char *)upper_sname,
2123 talloc_get_size(upper_sname)-1);
2124 MD5Final(hash, &ctx);
2125
2126 TALLOC_FREE(upper_sname);
2127
2128 /* Hopefully all the variation is in the lower 4 (or 8) bytes! */
2129 memcpy(&result, hash, sizeof(result));
2130
2131 DEBUG(10, ("fruit_inode \"%s\": ino=0x%llu\n",
2132 sname, (unsigned long long)result));
2133
2134 return result;
2135 }
2136
2137 static bool add_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
2138 struct stream_struct **streams,
2139 const char *name, off_t size,
2140 off_t alloc_size)
2141 {
2142 struct stream_struct *tmp;
2143
2144 tmp = talloc_realloc(mem_ctx, *streams, struct stream_struct,
2145 (*num_streams)+1);
2146 if (tmp == NULL) {
2147 return false;
2148 }
2149
2150 tmp[*num_streams].name = talloc_asprintf(tmp, "%s:$DATA", name);
2151 if (tmp[*num_streams].name == NULL) {
2152 return false;
2153 }
2154
2155 tmp[*num_streams].size = size;
2156 tmp[*num_streams].alloc_size = alloc_size;
2157
2158 *streams = tmp;
2159 *num_streams += 1;
2160 return true;
2161 }
2162
2163 static bool filter_empty_rsrc_stream(unsigned int *num_streams,
2164 struct stream_struct **streams)
2165 {
2166 struct stream_struct *tmp = *streams;
2167 unsigned int i;
2168
2169 if (*num_streams == 0) {
2170 return true;
2171 }
2172
2173 for (i = 0; i < *num_streams; i++) {
2174 if (strequal_m(tmp[i].name, AFPRESOURCE_STREAM)) {
2175 break;
2176 }
2177 }
2178
2179 if (i == *num_streams) {
2180 return true;
2181 }
2182
2183 if (tmp[i].size > 0) {
2184 return true;
2185 }
2186
2187 TALLOC_FREE(tmp[i].name);
2188 if (*num_streams - 1 > i) {
2189 memmove(&tmp[i], &tmp[i+1],
2190 (*num_streams - i - 1) * sizeof(struct stream_struct));
2191 }
2192
2193 *num_streams -= 1;
2194 return true;
2195 }
2196
2197 static bool del_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
2198 struct stream_struct **streams,
2199 const char *name)
2200 {
2201 struct stream_struct *tmp = *streams;
2202 unsigned int i;
2203
2204 if (*num_streams == 0) {
2205 return true;
2206 }
2207
2208 for (i = 0; i < *num_streams; i++) {
2209 if (strequal_m(tmp[i].name, name)) {
2210 break;
2211 }
2212 }
2213
2214 if (i == *num_streams) {
2215 return true;
2216 }
2217
2218 TALLOC_FREE(tmp[i].name);
2219 if (*num_streams - 1 > i) {
2220 memmove(&tmp[i], &tmp[i+1],
2221 (*num_streams - i - 1) * sizeof(struct stream_struct));
2222 }
2223
2224 *num_streams -= 1;
2225 return true;
2226 }
2227
2228 static bool ad_empty_finderinfo(const struct adouble *ad)
2229 {
2230 int cmp;
2231 char emptybuf[ADEDLEN_FINDERI] = {0};
2232 char *fi = NULL;
2233
2234 fi = ad_get_entry(ad, ADEID_FINDERI);
2235 if (fi == NULL) {
2236 DBG_ERR("Missing FinderInfo in struct adouble [%p]\n", ad);
2237 return false;
2238 }
2239
2240 cmp = memcmp(emptybuf, fi, ADEDLEN_FINDERI);
2241 return (cmp == 0);
2242 }
2243
2244 static bool ai_empty_finderinfo(const AfpInfo *ai)
2245 {
2246 int cmp;
2247 char emptybuf[ADEDLEN_FINDERI] = {0};
2248
2249 cmp = memcmp(emptybuf, &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
2250 return (cmp == 0);
2251 }
2252
2253 /**
2254 * Update btime with btime from Netatalk
2255 **/
2256 static void update_btime(vfs_handle_struct *handle,
2257 struct smb_filename *smb_fname)
2258 {
2259 uint32_t t;
2260 struct timespec creation_time = {0};
2261 struct adouble *ad;
2262 struct fruit_config_data *config = NULL;
2263
2264 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
2265 return);
2266
2267 switch (config->meta) {
2268 case FRUIT_META_STREAM:
2269 return;
2270 case FRUIT_META_NETATALK:
2271 /* Handled below */
2272 break;
2273 default:
2274 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
2275 return;
2276 }
2277
2278 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
2279 if (ad == NULL) {
2280 return;
2281 }
2282 if (ad_getdate(ad, AD_DATE_UNIX | AD_DATE_CREATE, &t) != 0) {
2283 TALLOC_FREE(ad);
2284 return;
2285 }
2286 TALLOC_FREE(ad);
2287
2288 creation_time.tv_sec = convert_uint32_t_to_time_t(t);
2289 update_stat_ex_create_time(&smb_fname->st, creation_time);
2290
2291 return;
2292 }
2293
2294 /**
2295 * Map an access mask to a Netatalk single byte byte range lock
2296 **/
2297 static off_t access_to_netatalk_brl(enum apple_fork fork_type,
2298 uint32_t access_mask)
2299 {
2300 off_t offset;
2301
2302 switch (access_mask) {
2303 case FILE_READ_DATA:
2304 offset = AD_FILELOCK_OPEN_RD;
2305 break;
2306
2307 case FILE_WRITE_DATA:
2308 case FILE_APPEND_DATA:
2309 offset = AD_FILELOCK_OPEN_WR;
2310 break;
2311
2312 default:
2313 offset = AD_FILELOCK_OPEN_NONE;
2314 break;
2315 }
2316
2317 if (fork_type == APPLE_FORK_RSRC) {
2318 if (offset == AD_FILELOCK_OPEN_NONE) {
2319 offset = AD_FILELOCK_RSRC_OPEN_NONE;
2320 } else {
2321 offset += 2;
2322 }
2323 }
2324
2325 return offset;
2326 }
2327
2328 /**
2329 * Map a deny mode to a Netatalk brl
2330 **/
2331 static off_t denymode_to_netatalk_brl(enum apple_fork fork_type,
2332 uint32_t deny_mode)
2333 {
2334 off_t offset;
2335
2336 switch (deny_mode) {
2337 case DENY_READ:
2338 offset = AD_FILELOCK_DENY_RD;
2339 break;
2340
2341 case DENY_WRITE:
2342 offset = AD_FILELOCK_DENY_WR;
2343 break;
2344
2345 default:
2346 smb_panic("denymode_to_netatalk_brl: bad deny mode\n");
2347 }
2348
2349 if (fork_type == APPLE_FORK_RSRC) {
2350 offset += 2;
2351 }
2352
2353 return offset;
2354 }
2355
2356 /**
2357 * Call fcntl() with an exclusive F_GETLK request in order to
2358 * determine if there's an exisiting shared lock
2359 *
2360 * @return true if the requested lock was found or any error occurred
2361 * false if the lock was not found
2362 **/
2363 static bool test_netatalk_lock(files_struct *fsp, off_t in_offset)
2364 {
2365 bool result;
2366 off_t offset = in_offset;
2367 off_t len = 1;
2368 int type = F_WRLCK;
2369 pid_t pid;
2370
2371 result = SMB_VFS_GETLOCK(fsp, &offset, &len, &type, &pid);
2372 if (result == false) {
2373 return true;
2374 }
2375
2376 if (type != F_UNLCK) {
2377 return true;
2378 }
2379
2380 return false;
2381 }
2382
2383 static NTSTATUS fruit_check_access(vfs_handle_struct *handle,
2384 files_struct *fsp,
2385 uint32_t access_mask,
2386 uint32_t deny_mode)
2387 {
2388 NTSTATUS status = NT_STATUS_OK;
2389 struct byte_range_lock *br_lck = NULL;
2390 bool open_for_reading, open_for_writing, deny_read, deny_write;
2391 off_t off;
2392 bool have_read = false;
2393 int flags;
2394
2395 /* FIXME: hardcoded data fork, add resource fork */
2396 enum apple_fork fork_type = APPLE_FORK_DATA;
2397
2398 DEBUG(10, ("fruit_check_access: %s, am: %s/%s, dm: %s/%s\n",
2399 fsp_str_dbg(fsp),
2400 access_mask & FILE_READ_DATA ? "READ" :"-",
2401 access_mask & FILE_WRITE_DATA ? "WRITE" : "-",
2402 deny_mode & DENY_READ ? "DENY_READ" : "-",
2403 deny_mode & DENY_WRITE ? "DENY_WRITE" : "-"));
2404
2405 if (fsp->fh->fd == -1) {
2406 return NT_STATUS_OK;
2407 }
2408
2409 flags = fcntl(fsp->fh->fd, F_GETFL);
2410 if (flags == -1) {
2411 DBG_ERR("fcntl get flags [%s] fd [%d] failed [%s]\n",
2412 fsp_str_dbg(fsp), fsp->fh->fd, strerror(errno));
2413 return map_nt_error_from_unix(errno);
2414 }
2415
2416 if (flags & (O_RDONLY|O_RDWR)) {
2417 /*
2418 * Applying fcntl read locks requires an fd opened for
2419 * reading. This means we won't be applying locks for
2420 * files openend write-only, but what can we do...
2421 */
2422 have_read = true;
2423 }
2424
2425 /*
2426 * Check read access and deny read mode
2427 */
2428 if ((access_mask & FILE_READ_DATA) || (deny_mode & DENY_READ)) {
2429 /* Check access */
2430 open_for_reading = test_netatalk_lock(
2431 fsp, access_to_netatalk_brl(fork_type, FILE_READ_DATA));
2432
2433 deny_read = test_netatalk_lock(
2434 fsp, denymode_to_netatalk_brl(fork_type, DENY_READ));
2435
2436 DEBUG(10, ("read: %s, deny_write: %s\n",
2437 open_for_reading == true ? "yes" : "no",
2438 deny_read == true ? "yes" : "no"));
2439
2440 if (((access_mask & FILE_READ_DATA) && deny_read)
2441 || ((deny_mode & DENY_READ) && open_for_reading)) {
2442 return NT_STATUS_SHARING_VIOLATION;
2443 }
2444
2445 /* Set locks */
2446 if ((access_mask & FILE_READ_DATA) && have_read) {
2447 off = access_to_netatalk_brl(fork_type, FILE_READ_DATA);
2448 br_lck = do_lock(
2449 handle->conn->sconn->msg_ctx, fsp,
2450 fsp->op->global->open_persistent_id, 1, off,
2451 READ_LOCK, POSIX_LOCK, false,
2452 &status, NULL);
2453
2454 if (!NT_STATUS_IS_OK(status)) {
2455 return status;
2456 }
2457 TALLOC_FREE(br_lck);
2458 }
2459
2460 if ((deny_mode & DENY_READ) && have_read) {
2461 off = denymode_to_netatalk_brl(fork_type, DENY_READ);
2462 br_lck = do_lock(
2463 handle->conn->sconn->msg_ctx, fsp,
2464 fsp->op->global->open_persistent_id, 1, off,
2465 READ_LOCK, POSIX_LOCK, false,
2466 &status, NULL);
2467
2468 if (!NT_STATUS_IS_OK(status)) {
2469 return status;
2470 }
2471 TALLOC_FREE(br_lck);
2472 }
2473 }
2474
2475 /*
2476 * Check write access and deny write mode
2477 */
2478 if ((access_mask & FILE_WRITE_DATA) || (deny_mode & DENY_WRITE)) {
2479 /* Check access */
2480 open_for_writing = test_netatalk_lock(
2481 fsp, access_to_netatalk_brl(fork_type, FILE_WRITE_DATA));
2482
2483 deny_write = test_netatalk_lock(
2484 fsp, denymode_to_netatalk_brl(fork_type, DENY_WRITE));
2485
2486 DEBUG(10, ("write: %s, deny_write: %s\n",
2487 open_for_writing == true ? "yes" : "no",
2488 deny_write == true ? "yes" : "no"));
2489
2490 if (((access_mask & FILE_WRITE_DATA) && deny_write)
2491 || ((deny_mode & DENY_WRITE) && open_for_writing)) {
2492 return NT_STATUS_SHARING_VIOLATION;
2493 }
2494
2495 /* Set locks */
2496 if ((access_mask & FILE_WRITE_DATA) && have_read) {
2497 off = access_to_netatalk_brl(fork_type, FILE_WRITE_DATA);
2498 br_lck = do_lock(
2499 handle->conn->sconn->msg_ctx, fsp,
2500 fsp->op->global->open_persistent_id, 1, off,
2501 READ_LOCK, POSIX_LOCK, false,
2502 &status, NULL);
2503
2504 if (!NT_STATUS_IS_OK(status)) {
2505 return status;
2506 }
2507 TALLOC_FREE(br_lck);
2508
2509 }
2510 if ((deny_mode & DENY_WRITE) && have_read) {
2511 off = denymode_to_netatalk_brl(fork_type, DENY_WRITE);
2512 br_lck = do_lock(
2513 handle->conn->sconn->msg_ctx, fsp,
2514 fsp->op->global->open_persistent_id, 1, off,
2515 READ_LOCK, POSIX_LOCK, false,
2516 &status, NULL);
2517
2518 if (!NT_STATUS_IS_OK(status)) {
2519 return status;
2520 }
2521 TALLOC_FREE(br_lck);
2522 }
2523 }
2524
2525 TALLOC_FREE(br_lck);
2526
2527 return status;
2528 }
2529
2530 static NTSTATUS check_aapl(vfs_handle_struct *handle,
2531 struct smb_request *req,
2532 const struct smb2_create_blobs *in_context_blobs,
2533 struct smb2_create_blobs *out_context_blobs)
2534 {
2535 struct fruit_config_data *config;
2536 NTSTATUS status;
2537 struct smb2_create_blob *aapl = NULL;
2538 uint32_t cmd;
2539 bool ok;
2540 uint8_t p[16];
2541 DATA_BLOB blob = data_blob_talloc(req, NULL, 0);
2542 uint64_t req_bitmap, client_caps;
2543 uint64_t server_caps = SMB2_CRTCTX_AAPL_UNIX_BASED;
2544 smb_ucs2_t *model;
2545 size_t modellen;
2546
2547 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
2548 return NT_STATUS_UNSUCCESSFUL);
2549
2550 if (!config->use_aapl
2551 || in_context_blobs == NULL
2552 || out_context_blobs == NULL) {
2553 return NT_STATUS_OK;
2554 }
2555
2556 aapl = smb2_create_blob_find(in_context_blobs,
2557 SMB2_CREATE_TAG_AAPL);
2558 if (aapl == NULL) {
2559 return NT_STATUS_OK;
2560 }
2561
2562 if (aapl->data.length != 24) {
2563 DEBUG(1, ("unexpected AAPL ctxt length: %ju\n",
2564 (uintmax_t)aapl->data.length));
2565 return NT_STATUS_INVALID_PARAMETER;
2566 }
2567
2568 cmd = IVAL(aapl->data.data, 0);
2569 if (cmd != SMB2_CRTCTX_AAPL_SERVER_QUERY) {
2570 DEBUG(1, ("unsupported AAPL cmd: %d\n", cmd));
2571 return NT_STATUS_INVALID_PARAMETER;
2572 }
2573
2574 req_bitmap = BVAL(aapl->data.data, 8);
2575 client_caps = BVAL(aapl->data.data, 16);
2576
2577 SIVAL(p, 0, SMB2_CRTCTX_AAPL_SERVER_QUERY);
2578 SIVAL(p, 4, 0);
2579 SBVAL(p, 8, req_bitmap);
2580 ok = data_blob_append(req, &blob, p, 16);
2581 if (!ok) {
2582 return NT_STATUS_UNSUCCESSFUL;
2583 }
2584
2585 if (req_bitmap & SMB2_CRTCTX_AAPL_SERVER_CAPS) {
2586 if ((client_caps & SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR) &&
2587 (handle->conn->tcon->compat->fs_capabilities & FILE_NAMED_STREAMS)) {
2588 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR;
2589 config->readdir_attr_enabled = true;
2590 }
2591
2592 if (config->use_copyfile) {
2593 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_OSX_COPYFILE;
2594 config->copyfile_enabled = true;
2595 }
2596
2597 /*
2598 * The client doesn't set the flag, so we can't check
2599 * for it and just set it unconditionally
2600 */
2601 if (config->unix_info_enabled) {
2602 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_NFS_ACE;
2603 }
2604
2605 SBVAL(p, 0, server_caps);
2606 ok = data_blob_append(req, &blob, p, 8);
2607 if (!ok) {
2608 return NT_STATUS_UNSUCCESSFUL;
2609 }
2610 }
2611
2612 if (req_bitmap & SMB2_CRTCTX_AAPL_VOLUME_CAPS) {
2613 int val = lp_case_sensitive(SNUM(handle->conn->tcon->compat));
2614 uint64_t caps = 0;
2615
2616 switch (val) {
2617 case Auto:
2618 break;
2619
2620 case True:
2621 caps |= SMB2_CRTCTX_AAPL_CASE_SENSITIVE;
2622 break;
2623
2624 default:
2625 break;
2626 }
2627
2628 if (config->time_machine) {
2629 caps |= SMB2_CRTCTX_AAPL_FULL_SYNC;
2630 }
2631
2632 SBVAL(p, 0, caps);
2633
2634 ok = data_blob_append(req, &blob, p, 8);
2635 if (!ok) {
2636 return NT_STATUS_UNSUCCESSFUL;
2637 }
2638 }
2639
2640 if (req_bitmap & SMB2_CRTCTX_AAPL_MODEL_INFO) {
2641 ok = convert_string_talloc(req,
2642 CH_UNIX, CH_UTF16LE,
2643 config->model, strlen(config->model),
2644 &model, &modellen);
2645 if (!ok) {
2646 return NT_STATUS_UNSUCCESSFUL;
2647 }
2648
2649 SIVAL(p, 0, 0);
2650 SIVAL(p + 4, 0, modellen);
2651 ok = data_blob_append(req, &blob, p, 8);
2652 if (!ok) {
2653 talloc_free(model);
2654 return NT_STATUS_UNSUCCESSFUL;
2655 }
2656
2657 ok = data_blob_append(req, &blob, model, modellen);
2658 talloc_free(model);
2659 if (!ok) {
2660 return NT_STATUS_UNSUCCESSFUL;
2661 }
2662 }
2663
2664 status = smb2_create_blob_add(out_context_blobs,
2665 out_context_blobs,
2666 SMB2_CREATE_TAG_AAPL,
2667 blob);
2668 if (NT_STATUS_IS_OK(status)) {
2669 global_fruit_config.nego_aapl = true;
2670 if (config->aapl_zero_file_id) {
2671 aapl_force_zero_file_id(handle->conn->sconn);
2672 }
2673 }
2674
2675 return status;
2676 }
2677
2678 static bool readdir_attr_meta_finderi_stream(
2679 struct vfs_handle_struct *handle,
2680 const struct smb_filename *smb_fname,
2681 AfpInfo *ai)
2682 {
2683 struct smb_filename *stream_name = NULL;
2684 files_struct *fsp = NULL;
2685 ssize_t nread;
2686 NTSTATUS status;
2687 int ret;
2688 bool ok;
2689 uint8_t buf[AFP_INFO_SIZE];
2690
2691 stream_name = synthetic_smb_fname(talloc_tos(),
2692 smb_fname->base_name,
2693 AFPINFO_STREAM_NAME,
2694 NULL, smb_fname->flags);
2695 if (stream_name == NULL) {
2696 return false;
2697 }
2698
2699 ret = SMB_VFS_STAT(handle->conn, stream_name);
2700 if (ret != 0) {
2701 return false;
2702 }
2703
2704 status = SMB_VFS_CREATE_FILE(
2705 handle->conn, /* conn */
2706 NULL, /* req */
2707 0, /* root_dir_fid */
2708 stream_name, /* fname */
2709 FILE_READ_DATA, /* access_mask */
2710 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
2711 FILE_SHARE_DELETE),
2712 FILE_OPEN, /* create_disposition*/
2713 0, /* create_options */
2714 0, /* file_attributes */
2715 INTERNAL_OPEN_ONLY, /* oplock_request */
2716 NULL, /* lease */
2717 0, /* allocation_size */
2718 0, /* private_flags */
2719 NULL, /* sd */
2720 NULL, /* ea_list */
2721 &fsp, /* result */
2722 NULL, /* pinfo */
2723 NULL, NULL); /* create context */
2724
2725 TALLOC_FREE(stream_name);
2726
2727 if (!NT_STATUS_IS_OK(status)) {
2728 return false;
2729 }
2730
2731 nread = SMB_VFS_PREAD(fsp, &buf[0], AFP_INFO_SIZE, 0);
2732 if (nread != AFP_INFO_SIZE) {
2733 DBG_ERR("short read [%s] [%zd/%d]\n",
2734 smb_fname_str_dbg(stream_name), nread, AFP_INFO_SIZE);
2735 ok = false;
2736 goto fail;
2737 }
2738
2739 memcpy(&ai->afpi_FinderInfo[0], &buf[AFP_OFF_FinderInfo],
2740 AFP_FinderSize);
2741
2742 ok = true;
2743
2744 fail:
2745 if (fsp != NULL) {
2746 close_file(NULL, fsp, NORMAL_CLOSE);
2747 }
2748
2749 return ok;
2750 }
2751
2752 static bool readdir_attr_meta_finderi_netatalk(
2753 struct vfs_handle_struct *handle,
2754 const struct smb_filename *smb_fname,
2755 AfpInfo *ai)
2756 {
2757 struct adouble *ad = NULL;
2758 char *p = NULL;
2759
2760 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
2761 if (ad == NULL) {
2762 return false;
2763 }
2764
2765 p = ad_get_entry(ad, ADEID_FINDERI);
2766 if (p == NULL) {
2767 DBG_ERR("No ADEID_FINDERI for [%s]\n", smb_fname->base_name);
2768 TALLOC_FREE(ad);
2769 return false;
2770 }
2771
2772 memcpy(&ai->afpi_FinderInfo[0], p, AFP_FinderSize);
2773 TALLOC_FREE(ad);
2774 return true;
2775 }
2776
2777 static bool readdir_attr_meta_finderi(struct vfs_handle_struct *handle,
2778 const struct smb_filename *smb_fname,
2779 struct readdir_attr_data *attr_data)
2780 {
2781 struct fruit_config_data *config = NULL;
2782 uint32_t date_added;
2783 AfpInfo ai = {0};
2784 bool ok;
2785
2786 SMB_VFS_HANDLE_GET_DATA(handle, config,
2787 struct fruit_config_data,
2788 return false);
2789
2790 switch (config->meta) {
2791 case FRUIT_META_NETATALK:
2792 ok = readdir_attr_meta_finderi_netatalk(
2793 handle, smb_fname, &ai);
2794 break;
2795
2796 case FRUIT_META_STREAM:
2797 ok = readdir_attr_meta_finderi_stream(
2798 handle, smb_fname, &ai);
2799 break;
2800
2801 default:
2802 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
2803 return false;
2804 }
2805
2806 if (!ok) {
2807 /* Don't bother with errors, it's likely ENOENT */
2808 return true;
2809 }
2810
2811 if (S_ISREG(smb_fname->st.st_ex_mode)) {
2812 /* finder_type */
2813 memcpy(&attr_data->attr_data.aapl.finder_info[0],
2814 &ai.afpi_FinderInfo[0], 4);
2815
2816 /* finder_creator */
2817 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 4,
2818 &ai.afpi_FinderInfo[4], 4);
2819 }
2820
2821 /* finder_flags */
2822 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 8,
2823 &ai.afpi_FinderInfo[8], 2);
2824
2825 /* finder_ext_flags */
2826 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 10,
2827 &ai.afpi_FinderInfo[24], 2);
2828
2829 /* creation date */
2830 date_added = convert_time_t_to_uint32_t(
2831 smb_fname->st.st_ex_btime.tv_sec - AD_DATE_DELTA);
2832
2833 RSIVAL(&attr_data->attr_data.aapl.finder_info[0], 12, date_added);
2834
2835 return true;
2836 }
2837
2838 static uint64_t readdir_attr_rfork_size_adouble(
2839 struct vfs_handle_struct *handle,
2840 const struct smb_filename *smb_fname)
2841 {
2842 struct adouble *ad = NULL;
2843 uint64_t rfork_size;
2844
2845 ad = ad_get(talloc_tos(), handle, smb_fname,
2846 ADOUBLE_RSRC);
2847 if (ad == NULL) {
2848 return 0;
2849 }
2850
2851 rfork_size = ad_getentrylen(ad, ADEID_RFORK);
2852 TALLOC_FREE(ad);
2853
2854 return rfork_size;
2855 }
2856
2857 static uint64_t readdir_attr_rfork_size_stream(
2858 struct vfs_handle_struct *handle,
2859 const struct smb_filename *smb_fname)
2860 {
2861 struct smb_filename *stream_name = NULL;
2862 int ret;
2863 uint64_t rfork_size;
2864
2865 stream_name = synthetic_smb_fname(talloc_tos(),
2866 smb_fname->base_name,
2867 AFPRESOURCE_STREAM_NAME,
2868 NULL, 0);
2869 if (stream_name == NULL) {
2870 return 0;
2871 }
2872
2873 ret = SMB_VFS_STAT(handle->conn, stream_name);
2874 if (ret != 0) {
2875 TALLOC_FREE(stream_name);
2876 return 0;
2877 }
2878
2879 rfork_size = stream_name->st.st_ex_size;
2880 TALLOC_FREE(stream_name);
2881
2882 return rfork_size;
2883 }
2884
2885 static uint64_t readdir_attr_rfork_size(struct vfs_handle_struct *handle,
2886 const struct smb_filename *smb_fname)
2887 {
2888 struct fruit_config_data *config = NULL;
2889 uint64_t rfork_size;
2890
2891 SMB_VFS_HANDLE_GET_DATA(handle, config,
2892 struct fruit_config_data,
2893 return 0);
2894
2895 switch (config->rsrc) {
2896 case FRUIT_RSRC_ADFILE:
2897 case FRUIT_RSRC_XATTR:
2898 rfork_size = readdir_attr_rfork_size_adouble(handle,
2899 smb_fname);
2900 break;
2901
2902 case FRUIT_META_STREAM:
2903 rfork_size = readdir_attr_rfork_size_stream(handle,
2904 smb_fname);
2905 break;
2906
2907 default:
2908 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
2909 rfork_size = 0;
2910 break;
2911 }
2912
2913 return rfork_size;
2914 }
2915
2916 static NTSTATUS readdir_attr_macmeta(struct vfs_handle_struct *handle,
2917 const struct smb_filename *smb_fname,
2918 struct readdir_attr_data *attr_data)
2919 {
2920 NTSTATUS status = NT_STATUS_OK;
2921 struct fruit_config_data *config = NULL;
2922 bool ok;
2923
2924 SMB_VFS_HANDLE_GET_DATA(handle, config,
2925 struct fruit_config_data,
2926 return NT_STATUS_UNSUCCESSFUL);
2927
2928
2929 /* Ensure we return a default value in the creation_date field */
2930 RSIVAL(&attr_data->attr_data.aapl.finder_info, 12, AD_DATE_START);
2931
2932 /*
2933 * Resource fork length
2934 */
2935
2936 if (config->readdir_attr_rsize) {
2937 uint64_t rfork_size;
2938
2939 rfork_size = readdir_attr_rfork_size(handle, smb_fname);
2940 attr_data->attr_data.aapl.rfork_size = rfork_size;
2941 }
2942
2943 /*
2944 * FinderInfo
2945 */
2946
2947 if (config->readdir_attr_finder_info) {
2948 ok = readdir_attr_meta_finderi(handle, smb_fname, attr_data);
2949 if (!ok) {
2950 status = NT_STATUS_INTERNAL_ERROR;
2951 }
2952 }
2953
2954 return status;
2955 }
2956
2957 static NTSTATUS remove_virtual_nfs_aces(struct security_descriptor *psd)
2958 {
2959 NTSTATUS status;
2960 uint32_t i;
2961
2962 if (psd->dacl == NULL) {
2963 return NT_STATUS_OK;
2964 }
2965
2966 for (i = 0; i < psd->dacl->num_aces; i++) {
2967 /* MS NFS style mode/uid/gid */
2968 int cmp = dom_sid_compare_domain(
2969 &global_sid_Unix_NFS,
2970 &psd->dacl->aces[i].trustee);
2971 if (cmp != 0) {
2972 /* Normal ACE entry. */
2973 continue;
2974 }
2975
2976 /*
2977 * security_descriptor_dacl_del()
2978 * *must* return NT_STATUS_OK as we know
2979 * we have something to remove.
2980 */
2981
2982 status = security_descriptor_dacl_del(psd,
2983 &psd->dacl->aces[i].trustee);
2984 if (!NT_STATUS_IS_OK(status)) {
2985 DBG_WARNING("failed to remove MS NFS style ACE: %s\n",
2986 nt_errstr(status));
2987 return status;
2988 }
2989
2990 /*
2991 * security_descriptor_dacl_del() may delete more
2992 * then one entry subsequent to this one if the
2993 * SID matches, but we only need to ensure that
2994 * we stay looking at the same element in the array.
2995 */
2996 i--;
2997 }
2998 return NT_STATUS_OK;
2999 }
3000
3001 /* Search MS NFS style ACE with UNIX mode */
3002 static NTSTATUS check_ms_nfs(vfs_handle_struct *handle,
3003 files_struct *fsp,
3004 struct security_descriptor *psd,
3005 mode_t *pmode,
3006 bool *pdo_chmod)
3007 {
3008 uint32_t i;
3009 struct fruit_config_data *config = NULL;
3010
3011 *pdo_chmod = false;
3012
3013 SMB_VFS_HANDLE_GET_DATA(handle, config,
3014 struct fruit_config_data,
3015 return NT_STATUS_UNSUCCESSFUL);
3016
3017 if (!global_fruit_config.nego_aapl) {
3018 return NT_STATUS_OK;
3019 }
3020 if (psd->dacl == NULL || !config->unix_info_enabled) {
3021 return NT_STATUS_OK;
3022 }
3023
3024 for (i = 0; i < psd->dacl->num_aces; i++) {
3025 if (dom_sid_compare_domain(
3026 &global_sid_Unix_NFS_Mode,
3027 &psd->dacl->aces[i].trustee) == 0) {
3028 *pmode = (mode_t)psd->dacl->aces[i].trustee.sub_auths[2];
3029 *pmode &= (S_IRWXU | S_IRWXG | S_IRWXO);
3030 *pdo_chmod = true;
3031
3032 DEBUG(10, ("MS NFS chmod request %s, %04o\n",
3033 fsp_str_dbg(fsp), (unsigned)(*pmode)));
3034 break;
3035 }
3036 }
3037
3038 /*
3039 * Remove any incoming virtual ACE entries generated by
3040 * fruit_fget_nt_acl().
3041 */
3042
3043 return remove_virtual_nfs_aces(psd);
3044 }
3045
3046 /****************************************************************************
3047 * VFS ops
3048 ****************************************************************************/
3049
3050 static int fruit_connect(vfs_handle_struct *handle,
3051 const char *service,
3052 const char *user)
3053 {
3054 int rc;
3055 char *list = NULL, *newlist = NULL;
3056 struct fruit_config_data *config;
3057
3058 DEBUG(10, ("fruit_connect\n"));
3059
3060 rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
3061 if (rc < 0) {
3062 return rc;
3063 }
3064
3065 rc = init_fruit_config(handle);
3066 if (rc != 0) {
3067 return rc;
3068 }
3069
3070 SMB_VFS_HANDLE_GET_DATA(handle, config,
3071 struct fruit_config_data, return -1);
3072
3073 if (config->veto_appledouble) {
3074 list = lp_veto_files(talloc_tos(), SNUM(handle->conn));
3075
3076 if (list) {
3077 if (strstr(list, "/" ADOUBLE_NAME_PREFIX "*/") == NULL) {
3078 newlist = talloc_asprintf(
3079 list,
3080 "%s/" ADOUBLE_NAME_PREFIX "*/",
3081 list);
3082 lp_do_parameter(SNUM(handle->conn),
3083 "veto files",
3084 newlist);
3085 }
3086 } else {
3087 lp_do_parameter(SNUM(handle->conn),
3088 "veto files",
3089 "/" ADOUBLE_NAME_PREFIX "*/");
3090 }
3091
3092 TALLOC_FREE(list);
3093 }
3094
3095 if (config->encoding == FRUIT_ENC_NATIVE) {
3096 lp_do_parameter(SNUM(handle->conn),
3097 "catia:mappings",
3098 fruit_catia_maps);
3099 }
3100
3101 if (config->time_machine) {
3102 DBG_NOTICE("Enabling durable handles for Time Machine "
3103 "support on [%s]\n", service);
3104 lp_do_parameter(SNUM(handle->conn), "durable handles", "yes");
3105 lp_do_parameter(SNUM(handle->conn), "kernel oplocks", "no");
3106 lp_do_parameter(SNUM(handle->conn), "kernel share modes", "no");
3107 if (!lp_strict_sync(SNUM(handle->conn))) {
3108 DBG_WARNING("Time Machine without strict sync is not "
3109 "recommended!\n");
3110 }
3111 lp_do_parameter(SNUM(handle->conn), "posix locking", "no");
3112 }
3113
3114 return rc;
3115 }
3116
3117 static int fruit_open_meta_stream(vfs_handle_struct *handle,
3118 struct smb_filename *smb_fname,
3119 files_struct *fsp,
3120 int flags,
3121 mode_t mode)
3122 {
3123 AfpInfo *ai = NULL;
3124 char afpinfo_buf[AFP_INFO_SIZE];
3125 ssize_t len, written;
3126 int hostfd = -1;
3127 int rc = -1;
3128
3129 hostfd = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
3130 if (hostfd == -1) {
3131 return -1;
3132 }
3133
3134 if (!(flags & (O_CREAT | O_TRUNC))) {
3135 return hostfd;
3136 }
3137
3138 ai = afpinfo_new(talloc_tos());
3139 if (ai == NULL) {
3140 rc = -1;
3141 goto fail;
3142 }
3143
3144 len = afpinfo_pack(ai, afpinfo_buf);
3145 if (len != AFP_INFO_SIZE) {
3146 rc = -1;
3147 goto fail;
3148 }
3149
3150 /* Set fd, needed in SMB_VFS_NEXT_PWRITE() */
3151 fsp->fh->fd = hostfd;
3152
3153 written = SMB_VFS_NEXT_PWRITE(handle, fsp, afpinfo_buf,
3154 AFP_INFO_SIZE, 0);
3155 fsp->fh->fd = -1;
3156 if (written != AFP_INFO_SIZE) {
3157 DBG_ERR("bad write [%zd/%d]\n", written, AFP_INFO_SIZE);
3158 rc = -1;
3159 goto fail;
3160 }
3161
3162 rc = 0;
3163
3164 fail:
3165 DBG_DEBUG("rc=%d, fd=%d\n", rc, hostfd);
3166
3167 if (rc != 0) {
3168 int saved_errno = errno;
3169 if (hostfd >= 0) {
3170 fsp->fh->fd = hostfd;
3171 SMB_VFS_NEXT_CLOSE(handle, fsp);
3172 }
3173 hostfd = -1;
3174 errno = saved_errno;
3175 }
3176 return hostfd;
3177 }
3178
3179 static int fruit_open_meta_netatalk(vfs_handle_struct *handle,
3180 struct smb_filename *smb_fname,
3181 files_struct *fsp,
3182 int flags,
3183 mode_t mode)
3184 {
3185 int rc;
3186 int fakefd = -1;
3187 struct adouble *ad = NULL;
3188 int fds[2];
3189
3190 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
3191
3192 /*
3193 * Return a valid fd, but ensure any attempt to use it returns an error
3194 * (EPIPE). All operations on the smb_fname or the fsp will use path
3195 * based syscalls.
3196 */
3197 rc = pipe(fds);
3198 if (rc != 0) {
3199 goto exit;
3200 }
3201 fakefd = fds[0];
3202 close(fds[1]);
3203
3204 if (flags & (O_CREAT | O_TRUNC)) {
3205 /*
3206 * The attribute does not exist or needs to be truncated,
3207 * create an AppleDouble EA
3208 */
3209 ad = ad_init(fsp, handle, ADOUBLE_META);
3210 if (ad == NULL) {
3211 rc = -1;
3212 goto exit;
3213 }
3214
3215 rc = ad_set(ad, fsp->fsp_name);
3216 if (rc != 0) {
3217 rc = -1;
3218 goto exit;
3219 }
3220
3221 TALLOC_FREE(ad);
3222 }
3223
3224 exit:
3225 DEBUG(10, ("fruit_open meta rc=%d, fd=%d\n", rc, fakefd));
3226 if (rc != 0) {
3227 int saved_errno = errno;
3228 if (fakefd >= 0) {
3229 close(fakefd);
3230 }
3231 fakefd = -1;
3232 errno = saved_errno;
3233 }
3234 return fakefd;
3235 }
3236
3237 static int fruit_open_meta(vfs_handle_struct *handle,
3238 struct smb_filename *smb_fname,
3239 files_struct *fsp, int flags, mode_t mode)
3240 {
3241 int fd;
3242 struct fruit_config_data *config = NULL;
3243 struct fio *fio = NULL;
3244
3245 DBG_DEBUG("path [%s]\n", smb_fname_str_dbg(smb_fname));
3246
3247 SMB_VFS_HANDLE_GET_DATA(handle, config,
3248 struct fruit_config_data, return -1);
3249
3250 switch (config->meta) {
3251 case FRUIT_META_STREAM:
3252 fd = fruit_open_meta_stream(handle, smb_fname,
3253 fsp, flags, mode);
3254 break;
3255
3256 case FRUIT_META_NETATALK:
3257 fd = fruit_open_meta_netatalk(handle, smb_fname,
3258 fsp, flags, mode);
3259 break;
3260
3261 default:
3262 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
3263 return -1;
3264 }
3265
3266 DBG_DEBUG("path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
3267
3268 if (fd == -1) {
3269 return -1;
3270 }
3271
3272 fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, NULL);
3273 fio->type = ADOUBLE_META;
3274 fio->config = config;
3275
3276 return fd;
3277 }
3278
3279 static int fruit_open_rsrc_adouble(vfs_handle_struct *handle,
3280 struct smb_filename *smb_fname,
3281 files_struct *fsp,
3282 int flags,
3283 mode_t mode)
3284 {
3285 int rc = 0;
3286 struct adouble *ad = NULL;
3287 struct smb_filename *smb_fname_base = NULL;
3288 struct fruit_config_data *config = NULL;
3289 int hostfd = -1;
3290
3291 SMB_VFS_HANDLE_GET_DATA(handle, config,
3292 struct fruit_config_data, return -1);
3293
3294 if ((!(flags & O_CREAT)) &&
3295 S_ISDIR(fsp->base_fsp->fsp_name->st.st_ex_mode))
3296 {
3297 /* sorry, but directories don't habe a resource fork */
3298 rc = -1;
3299 goto exit;
3300 }
3301
3302 rc = adouble_path(talloc_tos(), smb_fname, &smb_fname_base);
3303 if (rc != 0) {
3304 goto exit;
3305 }
3306
3307 /* Sanitize flags */
3308 if (flags & O_WRONLY) {
3309 /* We always need read access for the metadata header too */
3310 flags &= ~O_WRONLY;
3311 flags |= O_RDWR;
3312 }
3313
3314 hostfd = SMB_VFS_NEXT_OPEN(handle, smb_fname_base, fsp,
3315 flags, mode);
3316 if (hostfd == -1) {
3317 rc = -1;
3318 goto exit;
3319 }
3320
3321 if (flags & (O_CREAT | O_TRUNC)) {
3322 ad = ad_init(fsp, handle, ADOUBLE_RSRC);
3323 if (ad == NULL) {
3324 rc = -1;
3325 goto exit;
3326 }
3327
3328 fsp->fh->fd = hostfd;
3329
3330 rc = ad_fset(ad, fsp);
3331 fsp->fh->fd = -1;
3332 if (rc != 0) {
3333 rc = -1;
3334 goto exit;
3335 }
3336 TALLOC_FREE(ad);
3337 }
3338
3339 exit:
3340
3341 TALLOC_FREE(smb_fname_base);
3342
3343 DEBUG(10, ("fruit_open resource fork: rc=%d, fd=%d\n", rc, hostfd));
3344 if (rc != 0) {
3345 int saved_errno = errno;
3346 if (hostfd >= 0) {
3347 /*
3348 * BUGBUGBUG -- we would need to call
3349 * fd_close_posix here, but we don't have a
3350 * full fsp yet
3351 */
3352 fsp->fh->fd = hostfd;
3353 SMB_VFS_CLOSE(fsp);
3354 }
3355 hostfd = -1;
3356 errno = saved_errno;
3357 }
3358 return hostfd;
3359 }
3360
3361 static int fruit_open_rsrc_xattr(vfs_handle_struct *handle,
3362 struct smb_filename *smb_fname,
3363 files_struct *fsp,
3364 int flags,
3365 mode_t mode)
3366 {
3367 #ifdef HAVE_ATTROPEN
3368 int fd = -1;
3369
3370 fd = attropen(smb_fname->base_name,
3371 AFPRESOURCE_EA_NETATALK,
3372 flags,
3373 mode);
3374 if (fd == -1) {
3375 return -1;
3376 }
3377
3378 return fd;
3379
3380 #else
3381 errno = ENOSYS;
3382 return -1;
3383 #endif
3384 }
3385
3386 static int fruit_open_rsrc(vfs_handle_struct *handle,
3387 struct smb_filename *smb_fname,
3388 files_struct *fsp, int flags, mode_t mode)
3389 {
3390 int fd;
3391 struct fruit_config_data *config = NULL;
3392 struct fio *fio = NULL;
3393
3394 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
3395
3396 SMB_VFS_HANDLE_GET_DATA(handle, config,
3397 struct fruit_config_data, return -1);
3398
3399 if (((flags & O_ACCMODE) == O_RDONLY)
3400 && (flags & O_CREAT)
3401 && !VALID_STAT(fsp->fsp_name->st))
3402 {
3403 /*
3404 * This means the stream doesn't exist. macOS SMB server fails
3405 * this with NT_STATUS_OBJECT_NAME_NOT_FOUND, so must we. Cf bug
3406 * 12565 and the test for this combination in
3407 * test_rfork_create().
3408 */
3409 errno = ENOENT;
3410 return -1;
3411 }
3412
3413 switch (config->rsrc) {
3414 case FRUIT_RSRC_STREAM:
3415 fd = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
3416 break;
3417
3418 case FRUIT_RSRC_ADFILE:
3419 fd = fruit_open_rsrc_adouble(handle, smb_fname,
3420 fsp, flags, mode);
3421 break;
3422
3423 case FRUIT_RSRC_XATTR:
3424 fd = fruit_open_rsrc_xattr(handle, smb_fname,
3425 fsp, flags, mode);
3426 break;
3427
3428 default:
3429 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
3430 return -1;
3431 }
3432
3433 DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
3434
3435 if (fd == -1) {
3436 return -1;
3437 }
3438
3439 fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, NULL);
3440 fio->type = ADOUBLE_RSRC;
3441 fio->config = config;
3442
3443 return fd;
3444 }
3445
3446 static int fruit_open(vfs_handle_struct *handle,
3447 struct smb_filename *smb_fname,
3448 files_struct *fsp, int flags, mode_t mode)
3449 {
3450 int fd;
3451
3452 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
3453
3454 if (!is_ntfs_stream_smb_fname(smb_fname)) {
3455 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
3456 }
3457
3458 if (is_afpinfo_stream(smb_fname)) {
3459 fd = fruit_open_meta(handle, smb_fname, fsp, flags, mode);
3460 } else if (is_afpresource_stream(smb_fname)) {
3461 fd = fruit_open_rsrc(handle, smb_fname, fsp, flags, mode);
3462 } else {
3463 fd = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
3464 }
3465
3466 DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
3467
3468 return fd;
3469 }
3470
3471 static int fruit_rename(struct vfs_handle_struct *handle,
3472 const struct smb_filename *smb_fname_src,
3473 const struct smb_filename *smb_fname_dst)
3474 {
3475 int rc = -1;
3476 struct fruit_config_data *config = NULL;
3477 struct smb_filename *src_adp_smb_fname = NULL;
3478 struct smb_filename *dst_adp_smb_fname = NULL;
3479
3480 SMB_VFS_HANDLE_GET_DATA(handle, config,
3481 struct fruit_config_data, return -1);
3482
3483 if (!VALID_STAT(smb_fname_src->st)) {
3484 DBG_ERR("Need valid stat for [%s]\n",
3485 smb_fname_str_dbg(smb_fname_src));
3486 return -1;
3487 }
3488
3489 rc = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
3490 if (rc != 0) {
3491 return -1;
3492 }
3493
3494 if ((config->rsrc != FRUIT_RSRC_ADFILE) ||
3495 (!S_ISREG(smb_fname_src->st.st_ex_mode)))
3496 {
3497 return 0;
3498 }
3499
3500 rc = adouble_path(talloc_tos(), smb_fname_src, &src_adp_smb_fname);
3501 if (rc != 0) {
3502 goto done;
3503 }
3504
3505 rc = adouble_path(talloc_tos(), smb_fname_dst, &dst_adp_smb_fname);
3506 if (rc != 0) {
3507 goto done;
3508 }
3509
3510 DBG_DEBUG("%s -> %s\n",
3511 smb_fname_str_dbg(src_adp_smb_fname),
3512 smb_fname_str_dbg(dst_adp_smb_fname));
3513
3514 rc = SMB_VFS_NEXT_RENAME(handle, src_adp_smb_fname, dst_adp_smb_fname);
3515 if (errno == ENOENT) {
3516 rc = 0;
3517 }
3518
3519 done:
3520 TALLOC_FREE(src_adp_smb_fname);
3521 TALLOC_FREE(dst_adp_smb_fname);
3522 return rc;
3523 }
3524
3525 static int fruit_unlink_meta_stream(vfs_handle_struct *handle,
3526 const struct smb_filename *smb_fname)
3527 {
3528 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
3529 }
3530
3531 static int fruit_unlink_meta_netatalk(vfs_handle_struct *handle,
3532 const struct smb_filename *smb_fname)
3533 {
3534 return SMB_VFS_REMOVEXATTR(handle->conn,
3535 smb_fname,
3536 AFPINFO_EA_NETATALK);
3537 }
3538
3539 static int fruit_unlink_meta(vfs_handle_struct *handle,
3540 const struct smb_filename *smb_fname)
3541 {
3542 struct fruit_config_data *config = NULL;
3543 int rc;
3544
3545 SMB_VFS_HANDLE_GET_DATA(handle, config,
3546 struct fruit_config_data, return -1);
3547
3548 switch (config->meta) {
3549 case FRUIT_META_STREAM:
3550 rc = fruit_unlink_meta_stream(handle, smb_fname);
3551 break;
3552
3553 case FRUIT_META_NETATALK:
3554 rc = fruit_unlink_meta_netatalk(handle, smb_fname);
3555 break;
3556
3557 default:
3558 DBG_ERR("Unsupported meta config [%d]\n", config->meta);
3559 return -1;
3560 }
3561
3562 return rc;
3563 }
3564
3565 static int fruit_unlink_rsrc_stream(vfs_handle_struct *handle,
3566 const struct smb_filename *smb_fname,
3567 bool force_unlink)
3568 {
3569 int ret;
3570
3571 if (!force_unlink) {
3572 struct smb_filename *smb_fname_cp = NULL;
3573 off_t size;
3574
3575 smb_fname_cp = cp_smb_filename(talloc_tos(), smb_fname);
3576 if (smb_fname_cp == NULL) {
3577 return -1;
3578 }
3579
3580 /*
3581 * 0 byte resource fork streams are not listed by
3582 * vfs_streaminfo, as a result stream cleanup/deletion of file
3583 * deletion doesn't remove the resourcefork stream.
3584 */
3585
3586 ret = SMB_VFS_NEXT_STAT(handle, smb_fname_cp);
3587 if (ret != 0) {
3588 TALLOC_FREE(smb_fname_cp);
3589 DBG_ERR("stat [%s] failed [%s]\n",
3590 smb_fname_str_dbg(smb_fname_cp), strerror(errno));
3591 return -1;
3592 }
3593
3594 size = smb_fname_cp->st.st_ex_size;
3595 TALLOC_FREE(smb_fname_cp);
3596
3597 if (size > 0) {
3598 /* OS X ignores resource fork stream delete requests */
3599 return 0;
3600 }
3601 }
3602
3603 ret = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
3604 if ((ret != 0) && (errno == ENOENT) && force_unlink) {
3605 ret = 0;
3606 }
3607
3608 return ret;
3609 }
3610
3611 static int fruit_unlink_rsrc_adouble(vfs_handle_struct *handle,
3612 const struct smb_filename *smb_fname,
3613 bool force_unlink)
3614 {
3615 int rc;
3616 struct adouble *ad = NULL;
3617 struct smb_filename *adp_smb_fname = NULL;
3618
3619 if (!force_unlink) {
3620 ad = ad_get(talloc_tos(), handle, smb_fname,
3621 ADOUBLE_RSRC);
3622 if (ad == NULL) {
3623 errno = ENOENT;
3624 return -1;
3625 }
3626
3627
3628 /*
3629 * 0 byte resource fork streams are not listed by
3630 * vfs_streaminfo, as a result stream cleanup/deletion of file
3631 * deletion doesn't remove the resourcefork stream.
3632 */
3633
3634 if (ad_getentrylen(ad, ADEID_RFORK) > 0) {
3635 /* OS X ignores resource fork stream delete requests */
3636 TALLOC_FREE(ad);
3637 return 0;
3638 }
3639
3640 TALLOC_FREE(ad);
3641 }
3642
3643 rc = adouble_path(talloc_tos(), smb_fname, &adp_smb_fname);
3644 if (rc != 0) {
3645 return -1;
3646 }
3647
3648 rc = SMB_VFS_NEXT_UNLINK(handle, adp_smb_fname);
3649 TALLOC_FREE(adp_smb_fname);
3650 if ((rc != 0) && (errno == ENOENT) && force_unlink) {
3651 rc = 0;
3652 }
3653
3654 return rc;
3655 }
3656
3657 static int fruit_unlink_rsrc_xattr(vfs_handle_struct *handle,
3658 const struct smb_filename *smb_fname,
3659 bool force_unlink)
3660 {
3661 /*
3662 * OS X ignores resource fork stream delete requests, so nothing to do
3663 * here. Removing the file will remove the xattr anyway, so we don't
3664 * have to take care of removing 0 byte resource forks that could be
3665 * left behind.
3666 */
3667 return 0;
3668 }
3669
3670 static int fruit_unlink_rsrc(vfs_handle_struct *handle,
3671 const struct smb_filename *smb_fname,
3672 bool force_unlink)
3673 {
3674 struct fruit_config_data *config = NULL;
3675 int rc;
3676
3677 SMB_VFS_HANDLE_GET_DATA(handle, config,
3678 struct fruit_config_data, return -1);
3679
3680 switch (config->rsrc) {
3681 case FRUIT_RSRC_STREAM:
3682 rc = fruit_unlink_rsrc_stream(handle, smb_fname, force_unlink);
3683 break;
3684
3685 case FRUIT_RSRC_ADFILE:
3686 rc = fruit_unlink_rsrc_adouble(handle, smb_fname, force_unlink);
3687 break;
3688
3689 case FRUIT_RSRC_XATTR:
3690 rc = fruit_unlink_rsrc_xattr(handle, smb_fname, force_unlink);
3691 break;
3692
3693 default:
3694 DBG_ERR("Unsupported rsrc config [%d]\n", config->rsrc);
3695 return -1;
3696 }
3697
3698 return rc;
3699 }
3700
3701 static int fruit_unlink(vfs_handle_struct *handle,
3702 const struct smb_filename *smb_fname)
3703 {
3704 int rc;
3705 struct fruit_config_data *config = NULL;
3706 struct smb_filename *rsrc_smb_fname = NULL;
3707
3708 SMB_VFS_HANDLE_GET_DATA(handle, config,
3709 struct fruit_config_data, return -1);
3710
3711 if (is_afpinfo_stream(smb_fname)) {
3712 return fruit_unlink_meta(handle, smb_fname);
3713 } else if (is_afpresource_stream(smb_fname)) {
3714 return fruit_unlink_rsrc(handle, smb_fname, false);
3715 } if (is_ntfs_stream_smb_fname(smb_fname)) {
3716 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
3717 }
3718
3719 /*
3720 * A request to delete the base file. Because 0 byte resource
3721 * fork streams are not listed by fruit_streaminfo,
3722 * delete_all_streams() can't remove 0 byte resource fork
3723 * streams, so we have to cleanup this here.
3724 */
3725 rsrc_smb_fname = synthetic_smb_fname(talloc_tos(),
3726 smb_fname->base_name,
3727 AFPRESOURCE_STREAM_NAME,
3728 NULL,
3729 smb_fname->flags);
3730 if (rsrc_smb_fname == NULL) {
3731 return -1;
3732 }
3733
3734 rc = fruit_unlink_rsrc(handle, rsrc_smb_fname, true);
3735 if ((rc != 0) && (errno != ENOENT)) {
3736 DBG_ERR("Forced unlink of [%s] failed [%s]\n",
3737 smb_fname_str_dbg(rsrc_smb_fname), strerror(errno));
3738 TALLOC_FREE(rsrc_smb_fname);
3739 return -1;
3740 }
3741 TALLOC_FREE(rsrc_smb_fname);
3742
3743 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
3744 }
3745
3746 static int fruit_chmod(vfs_handle_struct *handle,
3747 const struct smb_filename *smb_fname,
3748 mode_t mode)
3749 {
3750 int rc = -1;
3751 struct fruit_config_data *config = NULL;
3752 struct smb_filename *smb_fname_adp = NULL;
3753
3754 rc = SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
3755 if (rc != 0) {
3756 return rc;
3757 }
3758
3759 SMB_VFS_HANDLE_GET_DATA(handle, config,
3760 struct fruit_config_data, return -1);
3761
3762 if (config->rsrc != FRUIT_RSRC_ADFILE) {
3763 return 0;
3764 }
3765
3766 if (!VALID_STAT(smb_fname->st)) {
3767 return 0;
3768 }
3769
3770 if (!S_ISREG(smb_fname->st.st_ex_mode)) {
3771 return 0;
3772 }
3773
3774 rc = adouble_path(talloc_tos(), smb_fname, &smb_fname_adp);
3775 if (rc != 0) {
3776 return -1;
3777 }
3778
3779 DEBUG(10, ("fruit_chmod: %s\n", smb_fname_adp->base_name));
3780
3781 rc = SMB_VFS_NEXT_CHMOD(handle, smb_fname_adp, mode);
3782 if (errno == ENOENT) {
3783 rc = 0;
3784 }
3785
3786 TALLOC_FREE(smb_fname_adp);
3787 return rc;
3788 }
3789
3790 static int fruit_chown(vfs_handle_struct *handle,
3791 const struct smb_filename *smb_fname,
3792 uid_t uid,
3793 gid_t gid)
3794 {
3795 int rc = -1;
3796 struct fruit_config_data *config = NULL;
3797 struct smb_filename *adp_smb_fname = NULL;
3798
3799 rc = SMB_VFS_NEXT_CHOWN(handle, smb_fname, uid, gid);
3800 if (rc != 0) {
3801 return rc;
3802 }
3803
3804 SMB_VFS_HANDLE_GET_DATA(handle, config,
3805 struct fruit_config_data, return -1);
3806
3807 if (config->rsrc != FRUIT_RSRC_ADFILE) {
3808 return 0;
3809 }
3810
3811 if (!VALID_STAT(smb_fname->st)) {
3812 return 0;
3813 }
3814
3815 if (!S_ISREG(smb_fname->st.st_ex_mode)) {
3816 return 0;
3817 }
3818
3819 rc = adouble_path(talloc_tos(), smb_fname, &adp_smb_fname);
3820 if (rc != 0) {
3821 goto done;
3822 }
3823
3824 DEBUG(10, ("fruit_chown: %s\n", adp_smb_fname->base_name));
3825
3826 rc = SMB_VFS_NEXT_CHOWN(handle, adp_smb_fname, uid, gid);
3827 if (errno == ENOENT) {
3828 rc = 0;
3829 }
3830
3831 done:
3832 TALLOC_FREE(adp_smb_fname);
3833 return rc;
3834 }
3835
3836 static int fruit_rmdir(struct vfs_handle_struct *handle,
3837 const struct smb_filename *smb_fname)
3838 {
3839 DIR *dh = NULL;
3840 struct dirent *de;
3841 struct fruit_config_data *config;
3842
3843 SMB_VFS_HANDLE_GET_DATA(handle, config,
3844 struct fruit_config_data, return -1);
3845
3846 if (config->rsrc != FRUIT_RSRC_ADFILE) {
3847 goto exit_rmdir;
3848 }
3849
3850 /*
3851 * Due to there is no way to change bDeleteVetoFiles variable
3852 * from this module, need to clean up ourselves
3853 */
3854
3855 dh = SMB_VFS_OPENDIR(handle->conn, smb_fname, NULL, 0);
3856 if (dh == NULL) {
3857 goto exit_rmdir;
3858 }
3859
3860 while ((de = SMB_VFS_READDIR(handle->conn, dh, NULL)) != NULL) {
3861 int match;
3862 struct adouble *ad = NULL;
3863 char *p = NULL;
3864 struct smb_filename *ad_smb_fname = NULL;
3865 int ret;
3866
3867 match = strncmp(de->d_name,
3868 ADOUBLE_NAME_PREFIX,
3869 strlen(ADOUBLE_NAME_PREFIX));
3870 if (match != 0) {
3871 continue;
3872 }
3873
3874 p = talloc_asprintf(talloc_tos(), "%s/%s",
3875 smb_fname->base_name, de->d_name);
3876 if (p == NULL) {
3877 DBG_ERR("talloc_asprintf failed\n");
3878 return -1;
3879 }
3880
3881 ad_smb_fname = synthetic_smb_fname(talloc_tos(), p,
3882 NULL, NULL,
3883 smb_fname->flags);
3884 TALLOC_FREE(p);
3885 if (ad_smb_fname == NULL) {
3886 DBG_ERR("synthetic_smb_fname failed\n");
3887 return -1;
3888 }
3889
3890 /*
3891 * Check whether it's a valid AppleDouble file, if
3892 * yes, delete it, ignore it otherwise.
3893 */
3894 ad = ad_get(talloc_tos(), handle, ad_smb_fname, ADOUBLE_RSRC);
3895 if (ad == NULL) {
3896 TALLOC_FREE(ad_smb_fname);
3897 TALLOC_FREE(p);
3898 continue;
3899 }
3900 TALLOC_FREE(ad);
3901
3902 ret = SMB_VFS_NEXT_UNLINK(handle, ad_smb_fname);
3903 if (ret != 0) {
3904 DBG_ERR("Deleting [%s] failed\n",
3905 smb_fname_str_dbg(ad_smb_fname));
3906 }
3907 TALLOC_FREE(ad_smb_fname);
3908 }
3909
3910 exit_rmdir:
3911 if (dh) {
3912 SMB_VFS_CLOSEDIR(handle->conn, dh);
3913 }
3914 return SMB_VFS_NEXT_RMDIR(handle, smb_fname);
3915 }
3916
3917 static ssize_t fruit_pread_meta_stream(vfs_handle_struct *handle,
3918 files_struct *fsp, void *data,
3919 size_t n, off_t offset)
3920 {
3921 ssize_t nread;
3922 int ret;
3923
3924 nread = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
3925
3926 if (nread == n) {
3927 return nread;
3928 }
3929
3930 DBG_ERR("Removing [%s] after short read [%zd]\n",
3931 fsp_str_dbg(fsp), nread);
3932
3933 ret = SMB_VFS_NEXT_UNLINK(handle, fsp->fsp_name);
3934 if (ret != 0) {
3935 DBG_ERR("Removing [%s] failed\n", fsp_str_dbg(fsp));
3936 return -1;
3937 }
3938
3939 errno = EINVAL;
3940 return -1;
3941 }
3942
3943 static ssize_t fruit_pread_meta_adouble(vfs_handle_struct *handle,
3944 files_struct *fsp, void *data,
3945 size_t n, off_t offset)
3946 {
3947 AfpInfo *ai = NULL;
3948 struct adouble *ad = NULL;
3949 char afpinfo_buf[AFP_INFO_SIZE];
3950 char *p = NULL;
3951 ssize_t nread;
3952
3953 ai = afpinfo_new(talloc_tos());
3954 if (ai == NULL) {
3955 return -1;
3956 }
3957
3958 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_META);
3959 if (ad == NULL) {
3960 nread = -1;
3961 goto fail;
3962 }
3963
3964 p = ad_get_entry(ad, ADEID_FINDERI);
3965 if (p == NULL) {
3966 DBG_ERR("No ADEID_FINDERI for [%s]\n", fsp_str_dbg(fsp));
3967 nread = -1;
3968 goto fail;
3969 }
3970
3971 memcpy(&ai->afpi_FinderInfo[0], p, ADEDLEN_FINDERI);
3972
3973 nread = afpinfo_pack(ai, afpinfo_buf);
3974 if (nread != AFP_INFO_SIZE) {
3975 nread = -1;
3976 goto fail;
3977 }
3978
3979 memcpy(data, afpinfo_buf, n);
3980 nread = n;
3981
3982 fail:
3983 TALLOC_FREE(ai);
3984 return nread;
3985 }
3986
3987 static ssize_t fruit_pread_meta(vfs_handle_struct *handle,
3988 files_struct *fsp, void *data,
3989 size_t n, off_t offset)
3990 {
3991 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
3992 ssize_t nread;
3993 ssize_t to_return;
3994
3995 /*
3996 * OS X has a off-by-1 error in the offset calculation, so we're
3997 * bug compatible here. It won't hurt, as any relevant real
3998 * world read requests from the AFP_AfpInfo stream will be
3999 * offset=0 n=60. offset is ignored anyway, see below.
4000 */
4001 if ((offset < 0) || (offset >= AFP_INFO_SIZE + 1)) {
4002 return 0;
4003 }
4004
4005 /* Yes, macOS always reads from offset 0 */
4006 offset = 0;
4007 to_return = MIN(n, AFP_INFO_SIZE);
4008
4009 switch (fio->config->meta) {
4010 case FRUIT_META_STREAM:
4011 nread = fruit_pread_meta_stream(handle, fsp, data,
4012 to_return, offset);
4013 break;
4014
4015 case FRUIT_META_NETATALK:
4016 nread = fruit_pread_meta_adouble(handle, fsp, data,
4017 to_return, offset);
4018 break;
4019
4020 default:
4021 DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
4022 return -1;
4023 }
4024
4025 return nread;
4026 }
4027
4028 static ssize_t fruit_pread_rsrc_stream(vfs_handle_struct *handle,
4029 files_struct *fsp, void *data,
4030 size_t n, off_t offset)
4031 {
4032 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
4033 }
4034
4035 static ssize_t fruit_pread_rsrc_xattr(vfs_handle_struct *handle,
4036 files_struct *fsp, void *data,
4037 size_t n, off_t offset)
4038 {
4039 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
4040 }
4041
4042 static ssize_t fruit_pread_rsrc_adouble(vfs_handle_struct *handle,
4043 files_struct *fsp, void *data,
4044 size_t n, off_t offset)
4045 {
4046 struct adouble *ad = NULL;
4047 ssize_t nread;
4048
4049 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_RSRC);
4050 if (ad == NULL) {
4051 return -1;
4052 }
4053
4054 nread = SMB_VFS_NEXT_PREAD(handle, fsp, data, n,
4055 offset + ad_getentryoff(ad, ADEID_RFORK));
4056
4057 TALLOC_FREE(ad);
4058 return nread;
4059 }
4060
4061 static ssize_t fruit_pread_rsrc(vfs_handle_struct *handle,
4062 files_struct *fsp, void *data,
4063 size_t n, off_t offset)
4064 {
4065 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4066 ssize_t nread;
4067
4068 switch (fio->config->rsrc) {
4069 case FRUIT_RSRC_STREAM:
4070 nread = fruit_pread_rsrc_stream(handle, fsp, data, n, offset);
4071 break;
4072
4073 case FRUIT_RSRC_ADFILE:
4074 nread = fruit_pread_rsrc_adouble(handle, fsp, data, n, offset);
4075 break;
4076
4077 case FRUIT_RSRC_XATTR:
4078 nread = fruit_pread_rsrc_xattr(handle, fsp, data, n, offset);
4079 break;
4080
4081 default:
4082 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
4083 return -1;
4084 }
4085
4086 return nread;
4087 }
4088
4089 static ssize_t fruit_pread(vfs_handle_struct *handle,
4090 files_struct *fsp, void *data,
4091 size_t n, off_t offset)
4092 {
4093 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4094 ssize_t nread;
4095
4096 DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
4097 fsp_str_dbg(fsp), (intmax_t)offset, n);
4098
4099 if (fio == NULL) {
4100 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
4101 }
4102
4103 if (fio->type == ADOUBLE_META) {
4104 nread = fruit_pread_meta(handle, fsp, data, n, offset);
4105 } else {
4106 nread = fruit_pread_rsrc(handle, fsp, data, n, offset);
4107 }
4108
4109 DBG_DEBUG("Path [%s] nread [%zd]\n", fsp_str_dbg(fsp), nread);
4110 return nread;
4111 }
4112
4113 static bool fruit_must_handle_aio_stream(struct fio *fio)
4114 {
4115 if (fio == NULL) {
4116 return false;
4117 };
4118
4119 if ((fio->type == ADOUBLE_META) &&
4120 (fio->config->meta == FRUIT_META_NETATALK))
4121 {
4122 return true;
4123 }
4124
4125 if ((fio->type == ADOUBLE_RSRC) &&
4126 (fio->config->rsrc == FRUIT_RSRC_ADFILE))
4127 {
4128 return true;
4129 }
4130
4131 return false;
4132 }
4133
4134 struct fruit_pread_state {
4135 ssize_t nread;
4136 struct vfs_aio_state vfs_aio_state;
4137 };
4138
4139 static void fruit_pread_done(struct tevent_req *subreq);
4140
4141 static struct tevent_req *fruit_pread_send(
4142 struct vfs_handle_struct *handle,
4143 TALLOC_CTX *mem_ctx,
4144 struct tevent_context *ev,
4145 struct files_struct *fsp,
4146 void *data,
4147 size_t n, off_t offset)
4148 {
4149 struct tevent_req *req = NULL;
4150 struct tevent_req *subreq = NULL;
4151 struct fruit_pread_state *state = NULL;
4152 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4153
4154 req = tevent_req_create(mem_ctx, &state,
4155 struct fruit_pread_state);
4156 if (req == NULL) {
4157 return NULL;
4158 }
4159
4160 if (fruit_must_handle_aio_stream(fio)) {
4161 state->nread = SMB_VFS_PREAD(fsp, data, n, offset);
4162 if (state->nread != n) {
4163 if (state->nread != -1) {
4164 errno = EIO;
4165 }
4166 tevent_req_error(req, errno);
4167 return tevent_req_post(req, ev);
4168 }
4169 tevent_req_done(req);
4170 return tevent_req_post(req, ev);
4171 }
4172
4173 subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp,
4174 data, n, offset);
4175 if (tevent_req_nomem(req, subreq)) {
4176 return tevent_req_post(req, ev);
4177 }
4178 tevent_req_set_callback(subreq, fruit_pread_done, req);
4179 return req;
4180 }
4181
4182 static void fruit_pread_done(struct tevent_req *subreq)
4183 {
4184 struct tevent_req *req = tevent_req_callback_data(
4185 subreq, struct tevent_req);
4186 struct fruit_pread_state *state = tevent_req_data(
4187 req, struct fruit_pread_state);
4188
4189 state->nread = SMB_VFS_PREAD_RECV(subreq, &state->vfs_aio_state);
4190 TALLOC_FREE(subreq);
4191
4192 if (tevent_req_error(req, state->vfs_aio_state.error)) {
4193 return;
4194 }
4195 tevent_req_done(req);
4196 }
4197
4198 static ssize_t fruit_pread_recv(struct tevent_req *req,
4199 struct vfs_aio_state *vfs_aio_state)
4200 {
4201 struct fruit_pread_state *state = tevent_req_data(
4202 req, struct fruit_pread_state);
4203
4204 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
4205 return -1;
4206 }
4207
4208 *vfs_aio_state = state->vfs_aio_state;
4209 return state->nread;
4210 }
4211
4212 static ssize_t fruit_pwrite_meta_stream(vfs_handle_struct *handle,
4213 files_struct *fsp, const void *data,
4214 size_t n, off_t offset)
4215 {
4216 AfpInfo *ai = NULL;
4217 size_t nwritten;
4218 bool ok;
4219
4220 ai = afpinfo_unpack(talloc_tos(), data);
4221 if (ai == NULL) {
4222 return -1;
4223 }
4224
4225 nwritten = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
4226 if (nwritten != n) {
4227 return -1;
4228 }
4229
4230 if (!ai_empty_finderinfo(ai)) {
4231 return n;
4232 }
4233
4234 ok = set_delete_on_close(
4235 fsp,
4236 true,
4237 handle->conn->session_info->security_token,
4238 handle->conn->session_info->unix_token);
4239 if (!ok) {
4240 DBG_ERR("set_delete_on_close on [%s] failed\n",
4241 fsp_str_dbg(fsp));
4242 return -1;
4243 }
4244
4245 return n;
4246 }
4247
4248 static ssize_t fruit_pwrite_meta_netatalk(vfs_handle_struct *handle,
4249 files_struct *fsp, const void *data,
4250 size_t n, off_t offset)
4251 {
4252 struct adouble *ad = NULL;
4253 AfpInfo *ai = NULL;
4254 char *p = NULL;
4255 int ret;
4256 bool ok;
4257
4258 ai = afpinfo_unpack(talloc_tos(), data);
4259 if (ai == NULL) {
4260 return -1;
4261 }
4262
4263 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_META);
4264 if (ad == NULL) {
4265 ad = ad_init(talloc_tos(), handle, ADOUBLE_META);
4266 if (ad == NULL) {
4267 return -1;
4268 }
4269 }
4270 p = ad_get_entry(ad, ADEID_FINDERI);
4271 if (p == NULL) {
4272 DBG_ERR("No ADEID_FINDERI for [%s]\n", fsp_str_dbg(fsp));
4273 TALLOC_FREE(ad);
4274 return -1;
4275 }
4276
4277 memcpy(p, &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
4278
4279 ret = ad_fset(ad, fsp);
4280 if (ret != 0) {
4281 DBG_ERR("ad_pwrite [%s] failed\n", fsp_str_dbg(fsp));
4282 TALLOC_FREE(ad);
4283 return -1;
4284 }
4285
4286 TALLOC_FREE(ad);
4287
4288 if (!ai_empty_finderinfo(ai)) {
4289 return n;
4290 }
4291
4292 ok = set_delete_on_close(
4293 fsp,
4294 true,
4295 handle->conn->session_info->security_token,
4296 handle->conn->session_info->unix_token);
4297 if (!ok) {
4298 DBG_ERR("set_delete_on_close on [%s] failed\n",
4299 fsp_str_dbg(fsp));
4300 return -1;
4301 }
4302
4303 return n;
4304 }
4305
4306 static ssize_t fruit_pwrite_meta(vfs_handle_struct *handle,
4307 files_struct *fsp, const void *data,
4308 size_t n, off_t offset)
4309 {
4310 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4311 ssize_t nwritten;
4312
4313 /*
4314 * Writing an all 0 blob to the metadata stream
4315 * results in the stream being removed on a macOS
4316 * server. This ensures we behave the same and it
4317 * verified by the "delete AFP_AfpInfo by writing all
4318 * 0" test.
4319 */
4320 if (n != AFP_INFO_SIZE || offset != 0) {
4321 DBG_ERR("unexpected offset=%jd or size=%jd\n",
4322 (intmax_t)offset, (intmax_t)n);
4323 return -1;
4324 }
4325
4326 switch (fio->config->meta) {
4327 case FRUIT_META_STREAM:
4328 nwritten = fruit_pwrite_meta_stream(handle, fsp, data,
4329 n, offset);
4330 break;
4331
4332 case FRUIT_META_NETATALK:
4333 nwritten = fruit_pwrite_meta_netatalk(handle, fsp, data,
4334 n, offset);
4335 break;
4336
4337 default:
4338 DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
4339 return -1;
4340 }
4341
4342 return nwritten;
4343 }
4344
4345 static ssize_t fruit_pwrite_rsrc_stream(vfs_handle_struct *handle,
4346 files_struct *fsp, const void *data,
4347 size_t n, off_t offset)
4348 {
4349 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
4350 }
4351
4352 static ssize_t fruit_pwrite_rsrc_xattr(vfs_handle_struct *handle,
4353 files_struct *fsp, const void *data,
4354 size_t n, off_t offset)
4355 {
4356 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
4357 }
4358
4359 static ssize_t fruit_pwrite_rsrc_adouble(vfs_handle_struct *handle,
4360 files_struct *fsp, const void *data,
4361 size_t n, off_t offset)
4362 {
4363 struct adouble *ad = NULL;
4364 ssize_t nwritten;
4365 int ret;
4366
4367 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_RSRC);
4368 if (ad == NULL) {
4369 DBG_ERR("ad_get [%s] failed\n", fsp_str_dbg(fsp));
4370 return -1;
4371 }
4372
4373 nwritten = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n,
4374 offset + ad_getentryoff(ad, ADEID_RFORK));
4375 if (nwritten != n) {
4376 DBG_ERR("Short write on [%s] [%zd/%zd]\n",
4377 fsp_str_dbg(fsp), nwritten, n);
4378 TALLOC_FREE(ad);
4379 return -1;
4380 }
4381
4382 if ((n + offset) > ad_getentrylen(ad, ADEID_RFORK)) {
4383 ad_setentrylen(ad, ADEID_RFORK, n + offset);
4384 ret = ad_fset(ad, fsp);
4385 if (ret != 0) {
4386 DBG_ERR("ad_pwrite [%s] failed\n", fsp_str_dbg(fsp));
4387 TALLOC_FREE(ad);
4388 return -1;
4389 }
4390 }
4391
4392 TALLOC_FREE(ad);
4393 return n;
4394 }
4395
4396 static ssize_t fruit_pwrite_rsrc(vfs_handle_struct *handle,
4397 files_struct *fsp, const void *data,
4398 size_t n, off_t offset)
4399 {
4400 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4401 ssize_t nwritten;
4402
4403 switch (fio->config->rsrc) {
4404 case FRUIT_RSRC_STREAM:
4405 nwritten = fruit_pwrite_rsrc_stream(handle, fsp, data, n, offset);
4406 break;
4407
4408 case FRUIT_RSRC_ADFILE:
4409 nwritten = fruit_pwrite_rsrc_adouble(handle, fsp, data, n, offset);
4410 break;
4411
4412 case FRUIT_RSRC_XATTR:
4413 nwritten = fruit_pwrite_rsrc_xattr(handle, fsp, data, n, offset);
4414 break;
4415
4416 default:
4417 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
4418 return -1;
4419 }
4420
4421 return nwritten;
4422 }
4423
4424 static ssize_t fruit_pwrite(vfs_handle_struct *handle,
4425 files_struct *fsp, const void *data,
4426 size_t n, off_t offset)
4427 {
4428 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4429 ssize_t nwritten;
4430
4431 DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
4432 fsp_str_dbg(fsp), (intmax_t)offset, n);
4433
4434 if (fio == NULL) {
4435 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
4436 }
4437
4438 if (fio->type == ADOUBLE_META) {
4439 nwritten = fruit_pwrite_meta(handle, fsp, data, n, offset);
4440 } else {
4441 nwritten = fruit_pwrite_rsrc(handle, fsp, data, n, offset);
4442 }
4443
4444 DBG_DEBUG("Path [%s] nwritten=%zd\n", fsp_str_dbg(fsp), nwritten);
4445 return nwritten;
4446 }
4447
4448 struct fruit_pwrite_state {
4449 ssize_t nwritten;
4450 struct vfs_aio_state vfs_aio_state;
4451 };
4452
4453 static void fruit_pwrite_done(struct tevent_req *subreq);
4454
4455 static struct tevent_req *fruit_pwrite_send(
4456 struct vfs_handle_struct *handle,
4457 TALLOC_CTX *mem_ctx,
4458 struct tevent_context *ev,
4459 struct files_struct *fsp,
4460 const void *data,
4461 size_t n, off_t offset)
4462 {
4463 struct tevent_req *req = NULL;
4464 struct tevent_req *subreq = NULL;
4465 struct fruit_pwrite_state *state = NULL;
4466 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4467
4468 req = tevent_req_create(mem_ctx, &state,
4469 struct fruit_pwrite_state);
4470 if (req == NULL) {
4471 return NULL;
4472 }
4473
4474 if (fruit_must_handle_aio_stream(fio)) {
4475 state->nwritten = SMB_VFS_PWRITE(fsp, data, n, offset);
4476 if (state->nwritten != n) {
4477 if (state->nwritten != -1) {
4478 errno = EIO;
4479 }
4480 tevent_req_error(req, errno);
4481 return tevent_req_post(req, ev);
4482 }
4483 tevent_req_done(req);
4484 return tevent_req_post(req, ev);
4485 }
4486
4487 subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp,
4488 data, n, offset);
4489 if (tevent_req_nomem(req, subreq)) {
4490 return tevent_req_post(req, ev);
4491 }
4492 tevent_req_set_callback(subreq, fruit_pwrite_done, req);
4493 return req;
4494 }
4495
4496 static void fruit_pwrite_done(struct tevent_req *subreq)
4497 {
4498 struct tevent_req *req = tevent_req_callback_data(
4499 subreq, struct tevent_req);
4500 struct fruit_pwrite_state *state = tevent_req_data(
4501 req, struct fruit_pwrite_state);
4502
4503 state->nwritten = SMB_VFS_PWRITE_RECV(subreq, &state->vfs_aio_state);
4504 TALLOC_FREE(subreq);
4505
4506 if (tevent_req_error(req, state->vfs_aio_state.error)) {
4507 return;
4508 }
4509 tevent_req_done(req);
4510 }
4511
4512 static ssize_t fruit_pwrite_recv(struct tevent_req *req,
4513 struct vfs_aio_state *vfs_aio_state)
4514 {
4515 struct fruit_pwrite_state *state = tevent_req_data(
4516 req, struct fruit_pwrite_state);
4517
4518 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
4519 return -1;
4520 }
4521
4522 *vfs_aio_state = state->vfs_aio_state;
4523 return state->nwritten;
4524 }
4525
4526 /**
4527 * Helper to stat/lstat the base file of an smb_fname.
4528 */
4529 static int fruit_stat_base(vfs_handle_struct *handle,
4530 struct smb_filename *smb_fname,
4531 bool follow_links)
4532 {
4533 char *tmp_stream_name;
4534 int rc;
4535
4536 tmp_stream_name = smb_fname->stream_name;
4537 smb_fname->stream_name = NULL;
4538 if (follow_links) {
4539 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
4540 } else {
4541 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
4542 }
4543 smb_fname->stream_name = tmp_stream_name;
4544 return rc;
4545 }
4546
4547 static int fruit_stat_meta_stream(vfs_handle_struct *handle,
4548 struct smb_filename *smb_fname,
4549 bool follow_links)
4550 {
4551 int ret;
4552
4553 if (follow_links) {
4554 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
4555 } else {
4556 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
4557 }
4558
4559 return ret;
4560 }
4561
4562 static int fruit_stat_meta_netatalk(vfs_handle_struct *handle,
4563 struct smb_filename *smb_fname,
4564 bool follow_links)
4565 {
4566 struct adouble *ad = NULL;
4567
4568 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
4569 if (ad == NULL) {
4570 DBG_INFO("fruit_stat_meta %s: %s\n",
4571 smb_fname_str_dbg(smb_fname), strerror(errno));
4572 errno = ENOENT;
4573 return -1;
4574 }
4575 TALLOC_FREE(ad);
4576
4577 /* Populate the stat struct with info from the base file. */
4578 if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
4579 return -1;
4580 }
4581 smb_fname->st.st_ex_size = AFP_INFO_SIZE;
4582 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
4583 smb_fname->stream_name);
4584 return 0;
4585 }
4586
4587 static int fruit_stat_meta(vfs_handle_struct *handle,
4588 struct smb_filename *smb_fname,
4589 bool follow_links)
4590 {
4591 struct fruit_config_data *config = NULL;
4592 int ret;
4593
4594 SMB_VFS_HANDLE_GET_DATA(handle, config,
4595 struct fruit_config_data, return -1);
4596
4597 switch (config->meta) {
4598 case FRUIT_META_STREAM:
4599 ret = fruit_stat_meta_stream(handle, smb_fname, follow_links);
4600 break;
4601
4602 case FRUIT_META_NETATALK:
4603 ret = fruit_stat_meta_netatalk(handle, smb_fname, follow_links);
4604 break;
4605
4606 default:
4607 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
4608 return -1;
4609 }
4610
4611 return ret;
4612 }
4613
4614 static int fruit_stat_rsrc_netatalk(vfs_handle_struct *handle,
4615 struct smb_filename *smb_fname,
4616 bool follow_links)
4617 {
4618 struct adouble *ad = NULL;
4619 int ret;
4620
4621 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_RSRC);
4622 if (ad == NULL) {
4623 errno = ENOENT;
4624 return -1;
4625 }
4626
4627 /* Populate the stat struct with info from the base file. */
4628 ret = fruit_stat_base(handle, smb_fname, follow_links);
4629 if (ret != 0) {
4630 TALLOC_FREE(ad);
4631 return -1;
4632 }
4633
4634 smb_fname->st.st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
4635 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
4636 smb_fname->stream_name);
4637 TALLOC_FREE(ad);
4638 return 0;
4639 }
4640
4641 static int fruit_stat_rsrc_stream(vfs_handle_struct *handle,
4642 struct smb_filename *smb_fname,
4643 bool follow_links)
4644 {
4645 int ret;
4646
4647 if (follow_links) {
4648 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
4649 } else {
4650 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
4651 }
4652
4653 return ret;
4654 }
4655
4656 static int fruit_stat_rsrc_xattr(vfs_handle_struct *handle,
4657 struct smb_filename *smb_fname,
4658 bool follow_links)
4659 {
4660 #ifdef HAVE_ATTROPEN
4661 int ret;
4662 int fd = -1;
4663
4664 /* Populate the stat struct with info from the base file. */
4665 ret = fruit_stat_base(handle, smb_fname, follow_links);
4666 if (ret != 0) {
4667 return -1;
4668 }
4669
4670 fd = attropen(smb_fname->base_name,
4671 AFPRESOURCE_EA_NETATALK,
4672 O_RDONLY);
4673 if (fd == -1) {
4674 return 0;
4675 }
4676
4677 ret = sys_fstat(fd, &smb_fname->st, false);
4678 if (ret != 0) {
4679 close(fd);
4680 DBG_ERR("fstat [%s:%s] failed\n", smb_fname->base_name,
4681 AFPRESOURCE_EA_NETATALK);
4682 return -1;
4683 }
4684 close(fd);
4685 fd = -1;
4686
4687 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
4688 smb_fname->stream_name);
4689
4690 return ret;
4691
4692 #else
4693 errno = ENOSYS;
4694 return -1;
4695 #endif
4696 }
4697
4698 static int fruit_stat_rsrc(vfs_handle_struct *handle,
4699 struct smb_filename *smb_fname,
4700 bool follow_links)
4701 {
4702 struct fruit_config_data *config = NULL;
4703 int ret;
4704
4705 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
4706
4707 SMB_VFS_HANDLE_GET_DATA(handle, config,
4708 struct fruit_config_data, return -1);
4709
4710 switch (config->rsrc) {
4711 case FRUIT_RSRC_STREAM:
4712 ret = fruit_stat_rsrc_stream(handle, smb_fname, follow_links);
4713 break;
4714
4715 case FRUIT_RSRC_XATTR:
4716 ret = fruit_stat_rsrc_xattr(handle, smb_fname, follow_links);
4717 break;
4718
4719 case FRUIT_RSRC_ADFILE:
4720 ret = fruit_stat_rsrc_netatalk(handle, smb_fname, follow_links);
4721 break;
4722
4723 default:
4724 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
4725 return -1;
4726 }
4727
4728 return ret;
4729 }
4730
4731 static int fruit_stat(vfs_handle_struct *handle,
4732 struct smb_filename *smb_fname)
4733 {
4734 int rc = -1;
4735
4736 DEBUG(10, ("fruit_stat called for %s\n",
4737 smb_fname_str_dbg(smb_fname)));
4738
4739 if (!is_ntfs_stream_smb_fname(smb_fname)
4740 || is_ntfs_default_stream_smb_fname(smb_fname)) {
4741 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
4742 if (rc == 0) {
4743 update_btime(handle, smb_fname);
4744 }
4745 return rc;
4746 }
4747
4748 /*
4749 * Note if lp_posix_paths() is true, we can never
4750 * get here as is_ntfs_stream_smb_fname() is
4751 * always false. So we never need worry about
4752 * not following links here.
4753 */
4754
4755 if (is_afpinfo_stream(smb_fname)) {
4756 rc = fruit_stat_meta(handle, smb_fname, true);
4757 } else if (is_afpresource_stream(smb_fname)) {
4758 rc = fruit_stat_rsrc(handle, smb_fname, true);
4759 } else {
4760 return SMB_VFS_NEXT_STAT(handle, smb_fname);
4761 }
4762
4763 if (rc == 0) {
4764 update_btime(handle, smb_fname);
4765 smb_fname->st.st_ex_mode &= ~S_IFMT;
4766 smb_fname->st.st_ex_mode |= S_IFREG;
4767 smb_fname->st.st_ex_blocks =
4768 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
4769 }
4770 return rc;
4771 }
4772
4773 static int fruit_lstat(vfs_handle_struct *handle,
4774 struct smb_filename *smb_fname)
4775 {
4776 int rc = -1;
4777
4778 DEBUG(10, ("fruit_lstat called for %s\n",
4779 smb_fname_str_dbg(smb_fname)));
4780
4781 if (!is_ntfs_stream_smb_fname(smb_fname)
4782 || is_ntfs_default_stream_smb_fname(smb_fname)) {
4783 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
4784 if (rc == 0) {
4785 update_btime(handle, smb_fname);
4786 }
4787 return rc;
4788 }
4789
4790 if (is_afpinfo_stream(smb_fname)) {
4791 rc = fruit_stat_meta(handle, smb_fname, false);
4792 } else if (is_afpresource_stream(smb_fname)) {
4793 rc = fruit_stat_rsrc(handle, smb_fname, false);
4794 } else {
4795 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
4796 }
4797
4798 if (rc == 0) {
4799 update_btime(handle, smb_fname);
4800 smb_fname->st.st_ex_mode &= ~S_IFMT;
4801 smb_fname->st.st_ex_mode |= S_IFREG;
4802 smb_fname->st.st_ex_blocks =
4803 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
4804 }
4805 return rc;
4806 }
4807
4808 static int fruit_fstat_meta_stream(vfs_handle_struct *handle,
4809 files_struct *fsp,
4810 SMB_STRUCT_STAT *sbuf)
4811 {
4812 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
4813 }
4814
4815 static int fruit_fstat_meta_netatalk(vfs_handle_struct *handle,
4816 files_struct *fsp,
4817 SMB_STRUCT_STAT *sbuf)
4818 {
4819 int ret;
4820
4821 ret = fruit_stat_base(handle, fsp->base_fsp->fsp_name, false);
4822 if (ret != 0) {
4823 return -1;
4824 }
4825
4826 *sbuf = fsp->base_fsp->fsp_name->st;
4827 sbuf->st_ex_size = AFP_INFO_SIZE;
4828 sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
4829
4830 return 0;
4831 }
4832
4833 static int fruit_fstat_meta(vfs_handle_struct *handle,
4834 files_struct *fsp,
4835 SMB_STRUCT_STAT *sbuf,
4836 struct fio *fio)
4837 {
4838 int ret;
4839
4840 DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
4841
4842 switch (fio->config->meta) {
4843 case FRUIT_META_STREAM:
4844 ret = fruit_fstat_meta_stream(handle, fsp, sbuf);
4845 break;
4846
4847 case FRUIT_META_NETATALK:
4848 ret = fruit_fstat_meta_netatalk(handle, fsp, sbuf);
4849 break;
4850
4851 default:
4852 DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
4853 return -1;
4854 }
4855
4856 DBG_DEBUG("Path [%s] ret [%d]\n", fsp_str_dbg(fsp), ret);
4857 return ret;
4858 }
4859
4860 static int fruit_fstat_rsrc_xattr(vfs_handle_struct *handle,
4861 files_struct *fsp,
4862 SMB_STRUCT_STAT *sbuf)
4863 {
4864 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
4865 }
4866
4867 static int fruit_fstat_rsrc_stream(vfs_handle_struct *handle,
4868 files_struct *fsp,
4869 SMB_STRUCT_STAT *sbuf)
4870 {
4871 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
4872 }
4873
4874 static int fruit_fstat_rsrc_adouble(vfs_handle_struct *handle,
4875 files_struct *fsp,
4876 SMB_STRUCT_STAT *sbuf)
4877 {
4878 struct adouble *ad = NULL;
4879 int ret;
4880
4881 /* Populate the stat struct with info from the base file. */
4882 ret = fruit_stat_base(handle, fsp->base_fsp->fsp_name, false);
4883 if (ret == -1) {
4884 return -1;
4885 }
4886
4887 ad = ad_get(talloc_tos(), handle,
4888 fsp->base_fsp->fsp_name,
4889 ADOUBLE_RSRC);
4890 if (ad == NULL) {
4891 DBG_ERR("ad_get [%s] failed [%s]\n",
4892 fsp_str_dbg(fsp), strerror(errno));
4893 return -1;
4894 }
4895
4896 *sbuf = fsp->base_fsp->fsp_name->st;
4897 sbuf->st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
4898 sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
4899
4900 TALLOC_FREE(ad);
4901 return 0;
4902 }
4903
4904 static int fruit_fstat_rsrc(vfs_handle_struct *handle, files_struct *fsp,
4905 SMB_STRUCT_STAT *sbuf, struct fio *fio)
4906 {
4907 int ret;
4908
4909 switch (fio->config->rsrc) {
4910 case FRUIT_RSRC_STREAM:
4911 ret = fruit_fstat_rsrc_stream(handle, fsp, sbuf);
4912 break;
4913
4914 case FRUIT_RSRC_ADFILE:
4915 ret = fruit_fstat_rsrc_adouble(handle, fsp, sbuf);
4916 break;
4917
4918 case FRUIT_RSRC_XATTR:
4919 ret = fruit_fstat_rsrc_xattr(handle, fsp, sbuf);
4920 break;
4921
4922 default:
4923 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
4924 return -1;
4925 }
4926
4927 return ret;
4928 }
4929
4930 static int fruit_fstat(vfs_handle_struct *handle, files_struct *fsp,
4931 SMB_STRUCT_STAT *sbuf)
4932 {
4933 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4934 int rc;
4935
4936 if (fio == NULL) {
4937 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
4938 }
4939
4940 DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
4941
4942 if (fio->type == ADOUBLE_META) {
4943 rc = fruit_fstat_meta(handle, fsp, sbuf, fio);
4944 } else {
4945 rc = fruit_fstat_rsrc(handle, fsp, sbuf, fio);
4946 }
4947
4948 if (rc == 0) {
4949 sbuf->st_ex_mode &= ~S_IFMT;
4950 sbuf->st_ex_mode |= S_IFREG;
4951 sbuf->st_ex_blocks = sbuf->st_ex_size / STAT_ST_BLOCKSIZE + 1;
4952 }
4953
4954 DBG_DEBUG("Path [%s] rc [%d] size [%"PRIdMAX"]\n",
4955 fsp_str_dbg(fsp), rc, (intmax_t)sbuf->st_ex_size);
4956 return rc;
4957 }
4958
4959 static NTSTATUS delete_invalid_meta_stream(
4960 vfs_handle_struct *handle,
4961 const struct smb_filename *smb_fname,
4962 TALLOC_CTX *mem_ctx,
4963 unsigned int *pnum_streams,
4964 struct stream_struct **pstreams)
4965 {
4966 struct smb_filename *sname = NULL;
4967 int ret;
4968 bool ok;
4969
4970 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams, AFPINFO_STREAM);
4971 if (!ok) {
4972 return NT_STATUS_INTERNAL_ERROR;
4973 }
4974
4975 sname = synthetic_smb_fname(talloc_tos(),
4976 smb_fname->base_name,
4977 AFPINFO_STREAM_NAME,
4978 NULL, 0);
4979 if (sname == NULL) {
4980 return NT_STATUS_NO_MEMORY;
4981 }
4982
4983 ret = SMB_VFS_NEXT_UNLINK(handle, sname);
4984 TALLOC_FREE(sname);
4985 if (ret != 0) {
4986 DBG_ERR("Removing [%s] failed\n", smb_fname_str_dbg(sname));
4987 return map_nt_error_from_unix(errno);
4988 }
4989
4990 return NT_STATUS_OK;
4991 }
4992
4993 static NTSTATUS fruit_streaminfo_meta_stream(
4994 vfs_handle_struct *handle,
4995 struct files_struct *fsp,
4996 const struct smb_filename *smb_fname,
4997 TALLOC_CTX *mem_ctx,
4998 unsigned int *pnum_streams,
4999 struct stream_struct **pstreams)
5000 {
5001 struct stream_struct *stream = *pstreams;
5002 unsigned int num_streams = *pnum_streams;
5003 struct smb_filename *sname = NULL;
5004 char *full_name = NULL;
5005 uint32_t name_hash;
5006 struct share_mode_lock *lck = NULL;
5007 struct file_id id = {0};
5008 bool delete_on_close_set;
5009 int i;
5010 int ret;
5011 NTSTATUS status;
5012 bool ok;
5013
5014 for (i = 0; i < num_streams; i++) {
5015 if (strequal_m(stream[i].name, AFPINFO_STREAM)) {
5016 break;
5017 }
5018 }
5019
5020 if (i == num_streams) {
5021 return NT_STATUS_OK;
5022 }
5023
5024 if (stream[i].size != AFP_INFO_SIZE) {
5025 DBG_ERR("Removing invalid AFPINFO_STREAM size [%jd] from [%s]\n",
5026 (intmax_t)stream[i].size, smb_fname_str_dbg(smb_fname));
5027
5028 return delete_invalid_meta_stream(handle, smb_fname, mem_ctx,
5029 pnum_streams, pstreams);
5030 }
5031
5032 /*
5033 * Now check if there's a delete-on-close pending on the stream. If so,
5034 * hide the stream. This behaviour was verified against a macOS 10.12
5035 * SMB server.
5036 */
5037
5038 sname = synthetic_smb_fname(talloc_tos(),
5039 smb_fname->base_name,
5040 AFPINFO_STREAM_NAME,
5041 NULL, 0);
5042 if (sname == NULL) {
5043 status = NT_STATUS_NO_MEMORY;
5044 goto out;
5045 }
5046
5047 ret = SMB_VFS_NEXT_STAT(handle, sname);
5048 if (ret != 0) {
5049 status = map_nt_error_from_unix(errno);
5050 goto out;
5051 }
5052
5053 id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &sname->st);
5054
5055 lck = get_existing_share_mode_lock(talloc_tos(), id);
5056 if (lck == NULL) {
5057 status = NT_STATUS_OK;
5058 goto out;
5059 }
5060
5061 full_name = talloc_asprintf(talloc_tos(),
5062 "%s%s",
5063 sname->base_name,
5064 AFPINFO_STREAM);
5065 if (full_name == NULL) {
5066 status = NT_STATUS_NO_MEMORY;
5067 goto out;
5068 }
5069
5070 status = file_name_hash(handle->conn, full_name, &name_hash);
5071 if (!NT_STATUS_IS_OK(status)) {
5072 goto out;
5073 }
5074
5075 delete_on_close_set = is_delete_on_close_set(lck, name_hash);
5076 if (delete_on_close_set) {
5077 ok = del_fruit_stream(mem_ctx,
5078 pnum_streams,
5079 pstreams,
5080 AFPINFO_STREAM);
5081 if (!ok) {
5082 status = NT_STATUS_INTERNAL_ERROR;
5083 goto out;
5084 }
5085 }
5086
5087 status = NT_STATUS_OK;
5088
5089 out:
5090 TALLOC_FREE(sname);
5091 TALLOC_FREE(lck);
5092 TALLOC_FREE(full_name);
5093 return status;
5094 }
5095
5096 static NTSTATUS fruit_streaminfo_meta_netatalk(
5097 vfs_handle_struct *handle,
5098 struct files_struct *fsp,
5099 const struct smb_filename *smb_fname,
5100 TALLOC_CTX *mem_ctx,
5101 unsigned int *pnum_streams,
5102 struct stream_struct **pstreams)
5103 {
5104 struct stream_struct *stream = *pstreams;
5105 unsigned int num_streams = *pnum_streams;
5106 struct adouble *ad = NULL;
5107 bool is_fi_empty;
5108 int i;
5109 bool ok;
5110
5111 /* Remove the Netatalk xattr from the list */
5112 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
5113 ":" NETATALK_META_XATTR ":$DATA");
5114 if (!ok) {
5115 return NT_STATUS_NO_MEMORY;
5116 }
5117
5118 /*
5119 * Check if there's a AFPINFO_STREAM from the VFS streams
5120 * backend and if yes, remove it from the list
5121 */
5122 for (i = 0; i < num_streams; i++) {
5123 if (strequal_m(stream[i].name, AFPINFO_STREAM)) {
5124 break;
5125 }
5126 }
5127
5128 if (i < num_streams) {
5129 DBG_WARNING("Unexpected AFPINFO_STREAM on [%s]\n",
5130 smb_fname_str_dbg(smb_fname));
5131
5132 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
5133 AFPINFO_STREAM);
5134 if (!ok) {
5135 return NT_STATUS_INTERNAL_ERROR;
5136 }
5137 }
5138
5139 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
5140 if (ad == NULL) {
5141 return NT_STATUS_OK;
5142 }
5143
5144 is_fi_empty = ad_empty_finderinfo(ad);
5145 TALLOC_FREE(ad);
5146
5147 if (is_fi_empty) {
5148 return NT_STATUS_OK;
5149 }
5150
5151 ok = add_fruit_stream(mem_ctx, pnum_streams, pstreams,
5152 AFPINFO_STREAM_NAME, AFP_INFO_SIZE,
5153 smb_roundup(handle->conn, AFP_INFO_SIZE));
5154 if (!ok) {
5155 return NT_STATUS_NO_MEMORY;
5156 }
5157
5158 return NT_STATUS_OK;
5159 }
5160
5161 static NTSTATUS fruit_streaminfo_meta(vfs_handle_struct *handle,
5162 struct files_struct *fsp,
5163 const struct smb_filename *smb_fname,
5164 TALLOC_CTX *mem_ctx,
5165 unsigned int *pnum_streams,
5166 struct stream_struct **pstreams)
5167 {
5168 struct fruit_config_data *config = NULL;
5169 NTSTATUS status;
5170
5171 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
5172 return NT_STATUS_INTERNAL_ERROR);
5173
5174 switch (config->meta) {
5175 case FRUIT_META_NETATALK:
5176 status = fruit_streaminfo_meta_netatalk(handle, fsp, smb_fname,
5177 mem_ctx, pnum_streams,
5178 pstreams);
5179 break;
5180
5181 case FRUIT_META_STREAM:
5182 status = fruit_streaminfo_meta_stream(handle, fsp, smb_fname,
5183 mem_ctx, pnum_streams,
5184 pstreams);
5185 break;
5186
5187 default:
5188 return NT_STATUS_INTERNAL_ERROR;
5189 }
5190
5191 return status;
5192 }
5193
5194 static NTSTATUS fruit_streaminfo_rsrc_stream(
5195 vfs_handle_struct *handle,
5196 struct files_struct *fsp,
5197 const struct smb_filename *smb_fname,
5198 TALLOC_CTX *mem_ctx,
5199 unsigned int *pnum_streams,
5200 struct stream_struct **pstreams)
5201 {
5202 bool ok;
5203
5204 ok = filter_empty_rsrc_stream(pnum_streams, pstreams);
5205 if (!ok) {
5206 DBG_ERR("Filtering resource stream failed\n");
5207 return NT_STATUS_INTERNAL_ERROR;
5208 }
5209 return NT_STATUS_OK;
5210 }
5211
5212 static NTSTATUS fruit_streaminfo_rsrc_xattr(
5213 vfs_handle_struct *handle,
5214 struct files_struct *fsp,
5215 const struct smb_filename *smb_fname,
5216 TALLOC_CTX *mem_ctx,
5217 unsigned int *pnum_streams,
5218 struct stream_struct **pstreams)
5219 {
5220 bool ok;
5221
5222 ok = filter_empty_rsrc_stream(pnum_streams, pstreams);
5223 if (!ok) {
5224 DBG_ERR("Filtering resource stream failed\n");
5225 return NT_STATUS_INTERNAL_ERROR;
5226 }
5227 return NT_STATUS_OK;
5228 }
5229
5230 static NTSTATUS fruit_streaminfo_rsrc_adouble(
5231 vfs_handle_struct *handle,
5232 struct files_struct *fsp,
5233 const struct smb_filename *smb_fname,
5234 TALLOC_CTX *mem_ctx,
5235 unsigned int *pnum_streams,
5236 struct stream_struct **pstreams)
5237 {
5238 struct stream_struct *stream = *pstreams;
5239 unsigned int num_streams = *pnum_streams;
5240 struct adouble *ad = NULL;
5241 bool ok;
5242 size_t rlen;
5243 int i;
5244
5245 /*
5246 * Check if there's a AFPRESOURCE_STREAM from the VFS streams backend
5247 * and if yes, remove it from the list
5248 */
5249 for (i = 0; i < num_streams; i++) {
5250 if (strequal_m(stream[i].name, AFPRESOURCE_STREAM)) {
5251 break;
5252 }
5253 }
5254
5255 if (i < num_streams) {
5256 DBG_WARNING("Unexpected AFPRESOURCE_STREAM on [%s]\n",
5257 smb_fname_str_dbg(smb_fname));
5258
5259 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
5260 AFPRESOURCE_STREAM);
5261 if (!ok) {
5262 return NT_STATUS_INTERNAL_ERROR;
5263 }
5264 }
5265
5266 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_RSRC);
5267 if (ad == NULL) {
5268 return NT_STATUS_OK;
5269 }
5270
5271 rlen = ad_getentrylen(ad, ADEID_RFORK);
5272 TALLOC_FREE(ad);
5273
5274 if (rlen == 0) {
5275 return NT_STATUS_OK;
5276 }
5277
5278 ok = add_fruit_stream(mem_ctx, pnum_streams, pstreams,
5279 AFPRESOURCE_STREAM_NAME, rlen,
5280 smb_roundup(handle->conn, rlen));
5281 if (!ok) {
5282 return NT_STATUS_NO_MEMORY;
5283 }
5284
5285 return NT_STATUS_OK;
5286 }
5287
5288 static NTSTATUS fruit_streaminfo_rsrc(vfs_handle_struct *handle,
5289 struct files_struct *fsp,
5290 const struct smb_filename *smb_fname,
5291 TALLOC_CTX *mem_ctx,
5292 unsigned int *pnum_streams,
5293 struct stream_struct **pstreams)
5294 {
5295 struct fruit_config_data *config = NULL;
5296 NTSTATUS status;
5297
5298 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
5299 return NT_STATUS_INTERNAL_ERROR);
5300
5301 switch (config->rsrc) {
5302 case FRUIT_RSRC_STREAM:
5303 status = fruit_streaminfo_rsrc_stream(handle, fsp, smb_fname,
5304 mem_ctx, pnum_streams,
5305 pstreams);
5306 break;
5307
5308 case FRUIT_RSRC_XATTR:
5309 status = fruit_streaminfo_rsrc_xattr(handle, fsp, smb_fname,
5310 mem_ctx, pnum_streams,
5311 pstreams);
5312 break;
5313
5314 case FRUIT_RSRC_ADFILE:
5315 status = fruit_streaminfo_rsrc_adouble(handle, fsp, smb_fname,
5316 mem_ctx, pnum_streams,
5317 pstreams);
5318 break;
5319
5320 default:
5321 return NT_STATUS_INTERNAL_ERROR;
5322 }
5323
5324 return status;
5325 }
5326
5327 static NTSTATUS fruit_streaminfo(vfs_handle_struct *handle,
5328 struct files_struct *fsp,
5329 const struct smb_filename *smb_fname,
5330 TALLOC_CTX *mem_ctx,
5331 unsigned int *pnum_streams,
5332 struct stream_struct **pstreams)
5333 {
5334 struct fruit_config_data *config = NULL;
5335 NTSTATUS status;
5336
5337 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
5338 return NT_STATUS_UNSUCCESSFUL);
5339
5340 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
5341
5342 status = SMB_VFS_NEXT_STREAMINFO(handle, fsp, smb_fname, mem_ctx,
5343 pnum_streams, pstreams);
5344 if (!NT_STATUS_IS_OK(status)) {
5345 return status;
5346 }
5347
5348 status = fruit_streaminfo_meta(handle, fsp, smb_fname,
5349 mem_ctx, pnum_streams, pstreams);
5350 if (!NT_STATUS_IS_OK(status)) {
5351 return status;
5352 }
5353
5354 status = fruit_streaminfo_rsrc(handle, fsp, smb_fname,
5355 mem_ctx, pnum_streams, pstreams);
5356 if (!NT_STATUS_IS_OK(status)) {
5357 return status;
5358 }
5359
5360 return NT_STATUS_OK;
5361 }
5362
5363 static int fruit_ntimes(vfs_handle_struct *handle,
5364 const struct smb_filename *smb_fname,
5365 struct smb_file_time *ft)
5366 {
5367 int rc = 0;
5368 struct adouble *ad = NULL;
5369 struct fruit_config_data *config = NULL;
5370
5371 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
5372 return -1);
5373
5374 if ((config->meta != FRUIT_META_NETATALK) ||
5375 null_timespec(ft->create_time))
5376 {
5377 return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
5378 }
5379
5380 DEBUG(10,("set btime for %s to %s\n", smb_fname_str_dbg(smb_fname),
5381 time_to_asc(convert_timespec_to_time_t(ft->create_time))));
5382
5383 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
5384 if (ad == NULL) {
5385 goto exit;
5386 }
5387
5388 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX,
5389 convert_time_t_to_uint32_t(ft->create_time.tv_sec));
5390
5391 rc = ad_set(ad, smb_fname);
5392
5393 exit:
5394
5395 TALLOC_FREE(ad);
5396 if (rc != 0) {
5397 DEBUG(1, ("fruit_ntimes: %s\n", smb_fname_str_dbg(smb_fname)));
5398 return -1;
5399 }
5400 return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
5401 }
5402
5403 static int fruit_fallocate(struct vfs_handle_struct *handle,
5404 struct files_struct *fsp,
5405 uint32_t mode,
5406 off_t offset,
5407 off_t len)
5408 {
5409 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
5410
5411 if (fio == NULL) {
5412 return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
5413 }
5414
5415 /* Let the pwrite code path handle it. */
5416 errno = ENOSYS;
5417 return -1;
5418 }
5419
5420 static int fruit_ftruncate_rsrc_xattr(struct vfs_handle_struct *handle,
5421 struct files_struct *fsp,
5422 off_t offset)
5423 {
5424 if (offset == 0) {
5425 return SMB_VFS_FREMOVEXATTR(fsp, AFPRESOURCE_EA_NETATALK);
5426 }
5427
5428 #ifdef HAVE_ATTROPEN
5429 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
5430 #endif
5431 return 0;
5432 }
5433
5434 static int fruit_ftruncate_rsrc_adouble(struct vfs_handle_struct *handle,
5435 struct files_struct *fsp,
5436 off_t offset)
5437 {
5438 int rc;
5439 struct adouble *ad = NULL;
5440 off_t ad_off;
5441
5442 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_RSRC);
5443 if (ad == NULL) {
5444 DBG_DEBUG("ad_get [%s] failed [%s]\n",
5445 fsp_str_dbg(fsp), strerror(errno));
5446 return -1;
5447 }
5448
5449 ad_off = ad_getentryoff(ad, ADEID_RFORK);
5450
5451 rc = ftruncate(fsp->fh->fd, offset + ad_off);
5452 if (rc != 0) {
5453 TALLOC_FREE(ad);
5454 return -1;
5455 }
5456
5457 ad_setentrylen(ad, ADEID_RFORK, offset);
5458
5459 rc = ad_fset(ad, fsp);
5460 if (rc != 0) {
5461 DBG_ERR("ad_fset [%s] failed [%s]\n",
5462 fsp_str_dbg(fsp), strerror(errno));
5463 TALLOC_FREE(ad);
5464 return -1;
5465 }
5466
5467 TALLOC_FREE(ad);
5468 return 0;
5469 }
5470
5471 static int fruit_ftruncate_rsrc_stream(struct vfs_handle_struct *handle,
5472 struct files_struct *fsp,
5473 off_t offset)
5474 {
5475 if (offset == 0) {
5476 return SMB_VFS_NEXT_UNLINK(handle, fsp->fsp_name);
5477 }
5478
5479 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
5480 }
5481
5482 static int fruit_ftruncate_rsrc(struct vfs_handle_struct *handle,
5483 struct files_struct *fsp,
5484 off_t offset)
5485 {
5486 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
5487 int ret;
5488
5489 switch (fio->config->rsrc) {
5490 case FRUIT_RSRC_XATTR:
5491 ret = fruit_ftruncate_rsrc_xattr(handle, fsp, offset);
5492 break;
5493
5494 case FRUIT_RSRC_ADFILE:
5495 ret = fruit_ftruncate_rsrc_adouble(handle, fsp, offset);
5496 break;
5497
5498 case FRUIT_RSRC_STREAM:
5499 ret = fruit_ftruncate_rsrc_stream(handle, fsp, offset);
5500 break;
5501
5502 default:
5503 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
5504 return -1;
5505 }
5506
5507
5508 return ret;
5509 }
5510
5511 static int fruit_ftruncate_meta(struct vfs_handle_struct *handle,
5512 struct files_struct *fsp,
5513 off_t offset)
5514 {
5515 if (offset > 60) {
5516 DBG_WARNING("ftruncate %s to %jd",
5517 fsp_str_dbg(fsp), (intmax_t)offset);
5518 /* OS X returns NT_STATUS_ALLOTTED_SPACE_EXCEEDED */
5519 errno = EOVERFLOW;
5520 return -1;
5521 }
5522
5523 /* OS X returns success but does nothing */
5524 DBG_INFO("ignoring ftruncate %s to %jd\n",
5525 fsp_str_dbg(fsp), (intmax_t)offset);
5526 return 0;
5527 }
5528
5529 static int fruit_ftruncate(struct vfs_handle_struct *handle,
5530 struct files_struct *fsp,
5531 off_t offset)
5532 {
5533 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
5534 int ret;
5535
5536 DBG_DEBUG("Path [%s] offset [%"PRIdMAX"]\n", fsp_str_dbg(fsp),
5537 (intmax_t)offset);
5538
5539 if (fio == NULL) {
5540 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
5541 }
5542
5543 if (fio->type == ADOUBLE_META) {
5544 ret = fruit_ftruncate_meta(handle, fsp, offset);
5545 } else {
5546 ret = fruit_ftruncate_rsrc(handle, fsp, offset);
5547 }
5548
5549 DBG_DEBUG("Path [%s] result [%d]\n", fsp_str_dbg(fsp), ret);
5550 return ret;
5551 }
5552
5553 static NTSTATUS fruit_create_file(vfs_handle_struct *handle,
5554 struct smb_request *req,
5555 uint16_t root_dir_fid,
5556 struct smb_filename *smb_fname,
5557 uint32_t access_mask,
5558 uint32_t share_access,
5559 uint32_t create_disposition,
5560 uint32_t create_options,
5561 uint32_t file_attributes,
5562 uint32_t oplock_request,
5563 struct smb2_lease *lease,
5564 uint64_t allocation_size,
5565 uint32_t private_flags,
5566 struct security_descriptor *sd,
5567 struct ea_list *ea_list,
5568 files_struct **result,
5569 int *pinfo,
5570 const struct smb2_create_blobs *in_context_blobs,
5571 struct smb2_create_blobs *out_context_blobs)
5572 {
5573 NTSTATUS status;
5574 struct fruit_config_data *config = NULL;
5575 files_struct *fsp = NULL;
5576
5577 status = check_aapl(handle, req, in_context_blobs, out_context_blobs);
5578 if (!NT_STATUS_IS_OK(status)) {
5579 goto fail;
5580 }
5581
5582 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
5583 return NT_STATUS_UNSUCCESSFUL);
5584
5585 status = SMB_VFS_NEXT_CREATE_FILE(
5586 handle, req, root_dir_fid, smb_fname,
5587 access_mask, share_access,
5588 create_disposition, create_options,
5589 file_attributes, oplock_request,
5590 lease,
5591 allocation_size, private_flags,
5592 sd, ea_list, result,
5593 pinfo, in_context_blobs, out_context_blobs);
5594 if (!NT_STATUS_IS_OK(status)) {
5595 return status;
5596 }
5597
5598 fsp = *result;
5599
5600 if (global_fruit_config.nego_aapl) {
5601 if (config->posix_rename && fsp->is_directory) {
5602 /*
5603 * Enable POSIX directory rename behaviour
5604 */
5605 fsp->posix_flags |= FSP_POSIX_FLAGS_RENAME;
5606 }
5607 }
5608
5609 /*
5610 * If this is a plain open for existing files, opening an 0
5611 * byte size resource fork MUST fail with
5612 * NT_STATUS_OBJECT_NAME_NOT_FOUND.
5613 *
5614 * Cf the vfs_fruit torture tests in test_rfork_create().
5615 */
5616 if (is_afpresource_stream(fsp->fsp_name) &&
5617 create_disposition == FILE_OPEN)
5618 {
5619 if (fsp->fsp_name->st.st_ex_size == 0) {
5620 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
5621 goto fail;
5622 }
5623 }
5624
5625 if (is_ntfs_stream_smb_fname(smb_fname)
5626 || fsp->is_directory) {
5627 return status;
5628 }
5629
5630 if (config->locking == FRUIT_LOCKING_NETATALK) {
5631 status = fruit_check_access(
5632 handle, *result,
5633 access_mask,
5634 map_share_mode_to_deny_mode(share_access, 0));
5635 if (!NT_STATUS_IS_OK(status)) {
5636 goto fail;
5637 }
5638 }
5639
5640 return status;
5641
5642 fail:
5643 DEBUG(10, ("fruit_create_file: %s\n", nt_errstr(status)));
5644
5645 if (fsp) {
5646 close_file(req, fsp, ERROR_CLOSE);
5647 *result = fsp = NULL;
5648 }
5649
5650 return status;
5651 }
5652
5653 static NTSTATUS fruit_readdir_attr(struct vfs_handle_struct *handle,
5654 const struct smb_filename *fname,
5655 TALLOC_CTX *mem_ctx,
5656 struct readdir_attr_data **pattr_data)
5657 {
5658 struct fruit_config_data *config = NULL;
5659 struct readdir_attr_data *attr_data;
5660 NTSTATUS status;
5661
5662 SMB_VFS_HANDLE_GET_DATA(handle, config,
5663 struct fruit_config_data,
5664 return NT_STATUS_UNSUCCESSFUL);
5665
5666 if (!global_fruit_config.nego_aapl) {
5667 return SMB_VFS_NEXT_READDIR_ATTR(handle, fname, mem_ctx, pattr_data);
5668 }
5669
5670 DEBUG(10, ("fruit_readdir_attr %s\n", fname->base_name));
5671
5672 *pattr_data = talloc_zero(mem_ctx, struct readdir_attr_data);
5673 if (*pattr_data == NULL) {
5674 return NT_STATUS_UNSUCCESSFUL;
5675 }
5676 attr_data = *pattr_data;
5677 attr_data->type = RDATTR_AAPL;
5678
5679 /*
5680 * Mac metadata: compressed FinderInfo, resource fork length
5681 * and creation date
5682 */
5683 status = readdir_attr_macmeta(handle, fname, attr_data);
5684 if (!NT_STATUS_IS_OK(status)) {
5685 /*
5686 * Error handling is tricky: if we return failure from
5687 * this function, the corresponding directory entry
5688 * will to be passed to the client, so we really just
5689 * want to error out on fatal errors.
5690 */
5691 if (!NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
5692 goto fail;
5693 }
5694 }
5695
5696 /*
5697 * UNIX mode
5698 */
5699 if (config->unix_info_enabled) {
5700 attr_data->attr_data.aapl.unix_mode = fname->st.st_ex_mode;
5701 }
5702
5703 /*
5704 * max_access
5705 */
5706 if (!config->readdir_attr_max_access) {
5707 attr_data->attr_data.aapl.max_access = FILE_GENERIC_ALL;
5708 } else {
5709 status = smbd_calculate_access_mask(
5710 handle->conn,
5711 fname,
5712 false,
5713 SEC_FLAG_MAXIMUM_ALLOWED,
5714 &attr_data->attr_data.aapl.max_access);
5715 if (!NT_STATUS_IS_OK(status)) {
5716 goto fail;
5717 }
5718 }
5719
5720 return NT_STATUS_OK;
5721
5722 fail:
5723 DEBUG(1, ("fruit_readdir_attr %s, error: %s\n",
5724 fname->base_name, nt_errstr(status)));
5725 TALLOC_FREE(*pattr_data);
5726 return status;
5727 }
5728
5729 static NTSTATUS fruit_fget_nt_acl(vfs_handle_struct *handle,
5730 files_struct *fsp,
5731 uint32_t security_info,
5732 TALLOC_CTX *mem_ctx,
5733 struct security_descriptor **ppdesc)
5734 {
5735 NTSTATUS status;
5736 struct security_ace ace;
5737 struct dom_sid sid;
5738 struct fruit_config_data *config;
5739
5740 SMB_VFS_HANDLE_GET_DATA(handle, config,
5741 struct fruit_config_data,
5742 return NT_STATUS_UNSUCCESSFUL);
5743
5744 status = SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info,
5745 mem_ctx, ppdesc);
5746 if (!NT_STATUS_IS_OK(status)) {
5747 return status;
5748 }
5749
5750 /*
5751 * Add MS NFS style ACEs with uid, gid and mode
5752 */
5753 if (!global_fruit_config.nego_aapl) {
5754 return NT_STATUS_OK;
5755 }
5756 if (!config->unix_info_enabled) {
5757 return NT_STATUS_OK;
5758 }
5759
5760 /* First remove any existing ACE's with NFS style mode/uid/gid SIDs. */
5761 status = remove_virtual_nfs_aces(*ppdesc);
5762 if (!NT_STATUS_IS_OK(status)) {
5763 DBG_WARNING("failed to remove MS NFS style ACEs\n");
5764 return status;
5765 }
5766
5767 /* MS NFS style mode */
5768 sid_compose(&sid, &global_sid_Unix_NFS_Mode, fsp->fsp_name->st.st_ex_mode);
5769 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
5770 status = security_descriptor_dacl_add(*ppdesc, &ace);
5771 if (!NT_STATUS_IS_OK(status)) {
5772 DEBUG(1,("failed to add MS NFS style ACE\n"));
5773 return status;
5774 }
5775
5776 /* MS NFS style uid */
5777 sid_compose(&sid, &global_sid_Unix_NFS_Users, fsp->fsp_name->st.st_ex_uid);
5778 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
5779 status = security_descriptor_dacl_add(*ppdesc, &ace);
5780 if (!NT_STATUS_IS_OK(status)) {
5781 DEBUG(1,("failed to add MS NFS style ACE\n"));
5782 return status;
5783 }
5784
5785 /* MS NFS style gid */
5786 sid_compose(&sid, &global_sid_Unix_NFS_Groups, fsp->fsp_name->st.st_ex_gid);
5787 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
5788 status = security_descriptor_dacl_add(*ppdesc, &ace);
5789 if (!NT_STATUS_IS_OK(status)) {
5790 DEBUG(1,("failed to add MS NFS style ACE\n"));
5791 return status;
5792 }
5793
5794 return NT_STATUS_OK;
5795 }
5796
5797 static NTSTATUS fruit_fset_nt_acl(vfs_handle_struct *handle,
5798 files_struct *fsp,
5799 uint32_t security_info_sent,
5800 const struct security_descriptor *orig_psd)
5801 {
5802 NTSTATUS status;
5803 bool do_chmod;
5804 mode_t ms_nfs_mode = 0;
5805 int result;
5806 struct security_descriptor *psd = NULL;
5807 uint32_t orig_num_aces = 0;
5808
5809 if (orig_psd->dacl != NULL) {
5810 orig_num_aces = orig_psd->dacl->num_aces;
5811 }
5812
5813 psd = security_descriptor_copy(talloc_tos(), orig_psd);
5814 if (psd == NULL) {
5815 return NT_STATUS_NO_MEMORY;
5816 }
5817
5818 DBG_DEBUG("fruit_fset_nt_acl: %s\n", fsp_str_dbg(fsp));
5819
5820 status = check_ms_nfs(handle, fsp, psd, &ms_nfs_mode, &do_chmod);
5821 if (!NT_STATUS_IS_OK(status)) {
5822 DEBUG(1, ("fruit_fset_nt_acl: check_ms_nfs failed%s\n", fsp_str_dbg(fsp)));
5823 TALLOC_FREE(psd);
5824 return status;
5825 }
5826
5827 /*
5828 * If only ms_nfs ACE entries were sent, ensure we set the DACL
5829 * sent/present flags correctly now we've removed them.
5830 */
5831
5832 if (orig_num_aces != 0) {
5833 /*
5834 * Are there any ACE's left ?
5835 */
5836 if (psd->dacl->num_aces == 0) {
5837 /* No - clear the DACL sent/present flags. */
5838 security_info_sent &= ~SECINFO_DACL;
5839 psd->type &= ~SEC_DESC_DACL_PRESENT;
5840 }
5841 }
5842
5843 status = SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
5844 if (!NT_STATUS_IS_OK(status)) {
5845 DEBUG(1, ("fruit_fset_nt_acl: SMB_VFS_NEXT_FSET_NT_ACL failed%s\n", fsp_str_dbg(fsp)));
5846 TALLOC_FREE(psd);
5847 return status;
5848 }
5849
5850 if (do_chmod) {
5851 if (fsp->fh->fd != -1) {
5852 result = SMB_VFS_FCHMOD(fsp, ms_nfs_mode);
5853 } else {
5854 result = SMB_VFS_CHMOD(fsp->conn,
5855 fsp->fsp_name,
5856 ms_nfs_mode);
5857 }
5858
5859 if (result != 0) {
5860 DEBUG(1, ("chmod: %s, result: %d, %04o error %s\n", fsp_str_dbg(fsp),
5861 result, (unsigned)ms_nfs_mode,
5862 strerror(errno)));
5863 status = map_nt_error_from_unix(errno);
5864 TALLOC_FREE(psd);
5865 return status;
5866 }
5867 }
5868
5869 TALLOC_FREE(psd);
5870 return NT_STATUS_OK;
5871 }
5872
5873 static struct vfs_offload_ctx *fruit_offload_ctx;
5874
5875 struct fruit_offload_read_state {
5876 struct vfs_handle_struct *handle;
5877 struct tevent_context *ev;
5878 files_struct *fsp;
5879 uint32_t fsctl;
5880 DATA_BLOB token;
5881 };
5882
5883 static void fruit_offload_read_done(struct tevent_req *subreq);
5884
5885 static struct tevent_req *fruit_offload_read_send(
5886 TALLOC_CTX *mem_ctx,
5887 struct tevent_context *ev,
5888 struct vfs_handle_struct *handle,
5889 files_struct *fsp,
5890 uint32_t fsctl,
5891 uint32_t ttl,
5892 off_t offset,
5893 size_t to_copy)
5894 {
5895 struct tevent_req *req = NULL;
5896 struct tevent_req *subreq = NULL;
5897 struct fruit_offload_read_state *state = NULL;
5898
5899 req = tevent_req_create(mem_ctx, &state,
5900 struct fruit_offload_read_state);
5901 if (req == NULL) {
5902 return NULL;
5903 }
5904 *state = (struct fruit_offload_read_state) {
5905 .handle = handle,
5906 .ev = ev,
5907 .fsp = fsp,
5908 .fsctl = fsctl,
5909 };
5910
5911 subreq = SMB_VFS_NEXT_OFFLOAD_READ_SEND(mem_ctx, ev, handle, fsp,
5912 fsctl, ttl, offset, to_copy);
5913 if (tevent_req_nomem(subreq, req)) {
5914 return tevent_req_post(req, ev);
5915 }
5916 tevent_req_set_callback(subreq, fruit_offload_read_done, req);
5917 return req;
5918 }
5919
5920 static void fruit_offload_read_done(struct tevent_req *subreq)
5921 {
5922 struct tevent_req *req = tevent_req_callback_data(
5923 subreq, struct tevent_req);
5924 struct fruit_offload_read_state *state = tevent_req_data(
5925 req, struct fruit_offload_read_state);
5926 NTSTATUS status;
5927
5928 status = SMB_VFS_NEXT_OFFLOAD_READ_RECV(subreq,
5929 state->handle,
5930 state,
5931 &state->token);
5932 TALLOC_FREE(subreq);
5933 if (tevent_req_nterror(req, status)) {
5934 return;
5935 }
5936
5937 if (state->fsctl != FSCTL_SRV_REQUEST_RESUME_KEY) {
5938 tevent_req_done(req);
5939 return;
5940 }
5941
5942 status = vfs_offload_token_ctx_init(state->fsp->conn->sconn->client,
5943 &fruit_offload_ctx);
5944 if (tevent_req_nterror(req, status)) {
5945 return;
5946 }
5947
5948 status = vfs_offload_token_db_store_fsp(fruit_offload_ctx,
5949 state->fsp,
5950 &state->token);
5951 if (tevent_req_nterror(req, status)) {
5952 return;
5953 }
5954
5955 tevent_req_done(req);
5956 return;
5957 }
5958
5959 static NTSTATUS fruit_offload_read_recv(struct tevent_req *req,
5960 struct vfs_handle_struct *handle,
5961 TALLOC_CTX *mem_ctx,
5962 DATA_BLOB *token)
5963 {
5964 struct fruit_offload_read_state *state = tevent_req_data(
5965 req, struct fruit_offload_read_state);
5966 NTSTATUS status;
5967
5968 if (tevent_req_is_nterror(req, &status)) {
5969 tevent_req_received(req);
5970 return status;
5971 }
5972
5973 token->length = state->token.length;
5974 token->data = talloc_move(mem_ctx, &state->token.data);
5975
5976 tevent_req_received(req);
5977 return NT_STATUS_OK;
5978 }
5979
5980 struct fruit_offload_write_state {
5981 struct vfs_handle_struct *handle;
5982 off_t copied;
5983 struct files_struct *src_fsp;
5984 struct files_struct *dst_fsp;
5985 bool is_copyfile;
5986 };
5987
5988 static void fruit_offload_write_done(struct tevent_req *subreq);
5989 static struct tevent_req *fruit_offload_write_send(struct vfs_handle_struct *handle,
5990 TALLOC_CTX *mem_ctx,
5991 struct tevent_context *ev,
5992 uint32_t fsctl,
5993 DATA_BLOB *token,
5994 off_t transfer_offset,
5995 struct files_struct *dest_fsp,
5996 off_t dest_off,
5997 off_t num)
5998 {
5999 struct tevent_req *req, *subreq;
6000 struct fruit_offload_write_state *state;
6001 NTSTATUS status;
6002 struct fruit_config_data *config;
6003 off_t src_off = transfer_offset;
6004 files_struct *src_fsp = NULL;
6005 off_t to_copy = num;
6006 bool copyfile_enabled = false;
6007
6008 DEBUG(10,("soff: %ju, doff: %ju, len: %ju\n",
6009 (uintmax_t)src_off, (uintmax_t)dest_off, (uintmax_t)num));
6010
6011 SMB_VFS_HANDLE_GET_DATA(handle, config,
6012 struct fruit_config_data,
6013 return NULL);
6014
6015 req = tevent_req_create(mem_ctx, &state,
6016 struct fruit_offload_write_state);
6017 if (req == NULL) {
6018 return NULL;
6019 }
6020 state->handle = handle;
6021 state->dst_fsp = dest_fsp;
6022
6023 switch (fsctl) {
6024 case FSCTL_SRV_COPYCHUNK:
6025 case FSCTL_SRV_COPYCHUNK_WRITE:
6026 copyfile_enabled = config->copyfile_enabled;
6027 break;
6028 default:
6029 break;
6030 }
6031
6032 /*
6033 * Check if this a OS X copyfile style copychunk request with
6034 * a requested chunk count of 0 that was translated to a
6035 * offload_write_send VFS call overloading the parameters src_off
6036 * = dest_off = num = 0.
6037 */
6038 if (copyfile_enabled && num == 0 && src_off == 0 && dest_off == 0) {
6039 status = vfs_offload_token_db_fetch_fsp(
6040 fruit_offload_ctx, token, &src_fsp);
6041 if (tevent_req_nterror(req, status)) {
6042 return tevent_req_post(req, ev);
6043 }
6044 state->src_fsp = src_fsp;
6045
6046 status = vfs_stat_fsp(src_fsp);
6047 if (tevent_req_nterror(req, status)) {
6048 return tevent_req_post(req, ev);
6049 }
6050
6051 to_copy = src_fsp->fsp_name->st.st_ex_size;
6052 state->is_copyfile = true;
6053 }
6054
6055 subreq = SMB_VFS_NEXT_OFFLOAD_WRITE_SEND(handle,
6056 mem_ctx,
6057 ev,
6058 fsctl,
6059 token,
6060 transfer_offset,
6061 dest_fsp,
6062 dest_off,
6063 to_copy);
6064 if (tevent_req_nomem(subreq, req)) {
6065 return tevent_req_post(req, ev);
6066 }
6067
6068 tevent_req_set_callback(subreq, fruit_offload_write_done, req);
6069 return req;
6070 }
6071
6072 static void fruit_offload_write_done(struct tevent_req *subreq)
6073 {
6074 struct tevent_req *req = tevent_req_callback_data(
6075 subreq, struct tevent_req);
6076 struct fruit_offload_write_state *state = tevent_req_data(
6077 req, struct fruit_offload_write_state);
6078 NTSTATUS status;
6079 unsigned int num_streams = 0;
6080 struct stream_struct *streams = NULL;
6081 unsigned int i;
6082 struct smb_filename *src_fname_tmp = NULL;
6083 struct smb_filename *dst_fname_tmp = NULL;
6084
6085 status = SMB_VFS_NEXT_OFFLOAD_WRITE_RECV(state->handle,
6086 subreq,
6087 &state->copied);
6088 TALLOC_FREE(subreq);
6089 if (tevent_req_nterror(req, status)) {
6090 return;
6091 }
6092
6093 if (!state->is_copyfile) {
6094 tevent_req_done(req);
6095 return;
6096 }
6097
6098 /*
6099 * Now copy all remaining streams. We know the share supports
6100 * streams, because we're in vfs_fruit. We don't do this async
6101 * because streams are few and small.
6102 */
6103 status = vfs_streaminfo(state->handle->conn, state->src_fsp,
6104 state->src_fsp->fsp_name,
6105 req, &num_streams, &streams);
6106 if (tevent_req_nterror(req, status)) {
6107 return;
6108 }
6109
6110 if (num_streams == 1) {
6111 /* There is always one stream, ::$DATA. */
6112 tevent_req_done(req);
6113 return;
6114 }
6115
6116 for (i = 0; i < num_streams; i++) {
6117 DEBUG(10, ("%s: stream: '%s'/%zu\n",
6118 __func__, streams[i].name, (size_t)streams[i].size));
6119
6120 src_fname_tmp = synthetic_smb_fname(
6121 req,
6122 state->src_fsp->fsp_name->base_name,
6123 streams[i].name,
6124 NULL,
6125 state->src_fsp->fsp_name->flags);
6126 if (tevent_req_nomem(src_fname_tmp, req)) {
6127 return;
6128 }
6129
6130 if (is_ntfs_default_stream_smb_fname(src_fname_tmp)) {
6131 TALLOC_FREE(src_fname_tmp);
6132 continue;
6133 }
6134
6135 dst_fname_tmp = synthetic_smb_fname(
6136 req,
6137 state->dst_fsp->fsp_name->base_name,
6138 streams[i].name,
6139 NULL,
6140 state->dst_fsp->fsp_name->flags);
6141 if (tevent_req_nomem(dst_fname_tmp, req)) {
6142 TALLOC_FREE(src_fname_tmp);
6143 return;
6144 }
6145
6146 status = copy_file(req,
6147 state->handle->conn,
6148 src_fname_tmp,
6149 dst_fname_tmp,
6150 OPENX_FILE_CREATE_IF_NOT_EXIST,
6151 0, false);
6152 if (!NT_STATUS_IS_OK(status)) {
6153 DEBUG(1, ("%s: copy %s to %s failed: %s\n", __func__,
6154 smb_fname_str_dbg(src_fname_tmp),
6155 smb_fname_str_dbg(dst_fname_tmp),
6156 nt_errstr(status)));
6157 TALLOC_FREE(src_fname_tmp);
6158 TALLOC_FREE(dst_fname_tmp);
6159 tevent_req_nterror(req, status);
6160 return;
6161 }
6162
6163 TALLOC_FREE(src_fname_tmp);
6164 TALLOC_FREE(dst_fname_tmp);
6165 }
6166
6167 TALLOC_FREE(streams);
6168 TALLOC_FREE(src_fname_tmp);
6169 TALLOC_FREE(dst_fname_tmp);
6170 tevent_req_done(req);
6171 }
6172
6173 static NTSTATUS fruit_offload_write_recv(struct vfs_handle_struct *handle,
6174 struct tevent_req *req,
6175 off_t *copied)
6176 {
6177 struct fruit_offload_write_state *state = tevent_req_data(
6178 req, struct fruit_offload_write_state);
6179 NTSTATUS status;
6180
6181 if (tevent_req_is_nterror(req, &status)) {
6182 DEBUG(1, ("server side copy chunk failed: %s\n",
6183 nt_errstr(status)));
6184 *copied = 0;
6185 tevent_req_received(req);
6186 return status;
6187 }
6188
6189 *copied = state->copied;
6190 tevent_req_received(req);
6191
6192 return NT_STATUS_OK;
6193 }
6194
6195 static char *fruit_get_bandsize_line(char **lines, int numlines)
6196 {
6197 static regex_t re;
6198 static bool re_initialized = false;
6199 int i;
6200 int ret;
6201
6202 if (!re_initialized) {
6203 ret = regcomp(&re, "^[[:blank:]]*<key>band-size</key>$", 0);
6204 if (ret != 0) {
6205 return NULL;
6206 }
6207 re_initialized = true;
6208 }
6209
6210 for (i = 0; i < numlines; i++) {
6211 regmatch_t matches[1];
6212
6213 ret = regexec(&re, lines[i], 1, matches, 0);
6214 if (ret == 0) {
6215 /*
6216 * Check if the match was on the last line, sa we want
6217 * the subsequent line.
6218 */
6219 if (i + 1 == numlines) {
6220 return NULL;
6221 }
6222 return lines[i + 1];
6223 }
6224 if (ret != REG_NOMATCH) {
6225 return NULL;
6226 }
6227 }
6228
6229 return NULL;
6230 }
6231
6232 static bool fruit_get_bandsize_from_line(char *line, size_t *_band_size)
6233 {
6234 static regex_t re;
6235 static bool re_initialized = false;
6236 regmatch_t matches[2];
6237 uint64_t band_size;
6238 int ret;
6239 bool ok;
6240
6241 if (!re_initialized) {
6242 ret = regcomp(&re,
6243 "^[[:blank:]]*"
6244 "<integer>\\([[:digit:]]*\\)</integer>$",
6245 0);
6246 if (ret != 0) {
6247 return false;
6248 }
6249 re_initialized = true;
6250 }
6251
6252 ret = regexec(&re, line, 2, matches, 0);
6253 if (ret != 0) {
6254 DBG_ERR("regex failed [%s]\n", line);
6255 return false;
6256 }
6257
6258 line[matches[1].rm_eo] = '\0';
6259
6260 ok = conv_str_u64(&line[matches[1].rm_so], &band_size);
6261 if (!ok) {
6262 return false;
6263 }
6264 *_band_size = (size_t)band_size;
6265 return true;
6266 }
6267
6268 /*
6269 * This reads and parses an Info.plist from a TM sparsebundle looking for the
6270 * "band-size" key and value.
6271 */
6272 static bool fruit_get_bandsize(vfs_handle_struct *handle,
6273 const char *dir,
6274 size_t *band_size)
6275 {
6276 #define INFO_PLIST_MAX_SIZE 64*1024
6277 char *plist = NULL;
6278 struct smb_filename *smb_fname = NULL;
6279 files_struct *fsp = NULL;
6280 uint8_t *file_data = NULL;
6281 char **lines = NULL;
6282 char *band_size_line = NULL;
6283 size_t plist_file_size;
6284 ssize_t nread;
6285 int numlines;
6286 int ret;
6287 bool ok = false;
6288 NTSTATUS status;
6289
6290 plist = talloc_asprintf(talloc_tos(),
6291 "%s/%s/Info.plist",
6292 handle->conn->connectpath,
6293 dir);
6294 if (plist == NULL) {
6295 ok = false;
6296 goto out;
6297 }
6298
6299 smb_fname = synthetic_smb_fname(talloc_tos(), plist, NULL, NULL, 0);
6300 if (smb_fname == NULL) {
6301 ok = false;
6302 goto out;
6303 }
6304
6305 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
6306 if (ret != 0) {
6307 DBG_INFO("Ignoring Sparsebundle without Info.plist [%s]\n", dir);
6308 ok = true;
6309 goto out;
6310 }
6311
6312 plist_file_size = smb_fname->st.st_ex_size;
6313
6314 if (plist_file_size > INFO_PLIST_MAX_SIZE) {
6315 DBG_INFO("%s is too large, ignoring\n", plist);
6316 ok = true;
6317 goto out;
6318 }
6319
6320 status = SMB_VFS_NEXT_CREATE_FILE(
6321 handle, /* conn */
6322 NULL, /* req */
6323 0, /* root_dir_fid */
6324 smb_fname, /* fname */
6325 FILE_GENERIC_READ, /* access_mask */
6326 FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
6327 FILE_OPEN, /* create_disposition */
6328 0, /* create_options */
6329 0, /* file_attributes */
6330 INTERNAL_OPEN_ONLY, /* oplock_request */
6331 NULL, /* lease */
6332 0, /* allocation_size */
6333 0, /* private_flags */
6334 NULL, /* sd */
6335 NULL, /* ea_list */
6336 &fsp, /* result */
6337 NULL, /* psbuf */
6338 NULL, NULL); /* create context */
6339 if (!NT_STATUS_IS_OK(status)) {
6340 DBG_INFO("Opening [%s] failed [%s]\n",
6341 smb_fname_str_dbg(smb_fname), nt_errstr(status));
6342 ok = false;
6343 goto out;
6344 }
6345
6346 file_data = talloc_array(talloc_tos(), uint8_t, plist_file_size);
6347 if (file_data == NULL) {
6348 ok = false;
6349 goto out;
6350 }
6351
6352 nread = SMB_VFS_NEXT_PREAD(handle, fsp, file_data, plist_file_size, 0);
6353 if (nread != plist_file_size) {
6354 DBG_ERR("Short read on [%s]: %zu/%zd\n",
6355 fsp_str_dbg(fsp), nread, plist_file_size);
6356 ok = false;
6357 goto out;
6358
6359 }
6360
6361 status = close_file(NULL, fsp, NORMAL_CLOSE);
6362 fsp = NULL;
6363 if (!NT_STATUS_IS_OK(status)) {
6364 DBG_ERR("close_file failed: %s\n", nt_errstr(status));
6365 ok = false;
6366 goto out;
6367 }
6368
6369 lines = file_lines_parse((char *)file_data,
6370 plist_file_size,
6371 &numlines,
6372 talloc_tos());
6373 if (lines == NULL) {
6374 ok = false;
6375 goto out;
6376 }
6377
6378 band_size_line = fruit_get_bandsize_line(lines, numlines);
6379 if (band_size_line == NULL) {
6380 DBG_ERR("Didn't find band-size key in [%s]\n",
6381 smb_fname_str_dbg(smb_fname));
6382 ok = false;
6383 goto out;
6384 }
6385
6386 ok = fruit_get_bandsize_from_line(band_size_line, band_size);
6387 if (!ok) {
6388 DBG_ERR("fruit_get_bandsize_from_line failed\n");
6389 goto out;
6390 }
6391
6392 DBG_DEBUG("Parsed band-size [%zu] for [%s]\n", *band_size, plist);
6393
6394 out:
6395 if (fsp != NULL) {
6396 status = close_file(NULL, fsp, NORMAL_CLOSE);
6397 if (!NT_STATUS_IS_OK(status)) {
6398 DBG_ERR("close_file failed: %s\n", nt_errstr(status));
6399 }
6400 fsp = NULL;
6401 }
6402 TALLOC_FREE(plist);
6403 TALLOC_FREE(smb_fname);
6404 TALLOC_FREE(file_data);
6405 TALLOC_FREE(lines);
6406 return ok;
6407 }
6408
6409 struct fruit_disk_free_state {
6410 off_t total_size;
6411 };
6412
6413 static bool fruit_get_num_bands(vfs_handle_struct *handle,
6414 char *bundle,
6415 size_t *_nbands)
6416 {
6417 char *path = NULL;
6418 struct smb_filename *bands_dir = NULL;
6419 DIR *d = NULL;
6420 struct dirent *e = NULL;
6421 size_t nbands;
6422 int ret;
6423
6424 path = talloc_asprintf(talloc_tos(),
6425 "%s/%s/bands",
6426 handle->conn->connectpath,
6427 bundle);
6428 if (path == NULL) {
6429 return false;
6430 }
6431
6432 bands_dir = synthetic_smb_fname(talloc_tos(),
6433 path,
6434 NULL,
6435 NULL,
6436 0);
6437 TALLOC_FREE(path);
6438 if (bands_dir == NULL) {
6439 return false;
6440 }
6441
6442 d = SMB_VFS_NEXT_OPENDIR(handle, bands_dir, NULL, 0);
6443 if (d == NULL) {
6444 TALLOC_FREE(bands_dir);
6445 return false;
6446 }
6447
6448 nbands = 0;
6449
6450 for (e = SMB_VFS_NEXT_READDIR(handle, d, NULL);
6451 e != NULL;
6452 e = SMB_VFS_NEXT_READDIR(handle, d, NULL))
6453 {
6454 if (ISDOT(e->d_name) || ISDOTDOT(e->d_name)) {
6455 continue;
6456 }
6457 nbands++;
6458 }
6459
6460 ret = SMB_VFS_NEXT_CLOSEDIR(handle, d);
6461 if (ret != 0) {
6462 TALLOC_FREE(bands_dir);
6463 return false;
6464 }
6465
6466 DBG_DEBUG("%zu bands in [%s]\n", nbands, smb_fname_str_dbg(bands_dir));
6467
6468 TALLOC_FREE(bands_dir);
6469
6470 *_nbands = nbands;
6471 return true;
6472 }
6473
6474 static bool fruit_tmsize_do_dirent(vfs_handle_struct *handle,
6475 struct fruit_disk_free_state *state,
6476 struct dirent *e)
6477 {
6478 bool ok;
6479 char *p = NULL;
6480 size_t sparsebundle_strlen = strlen("sparsebundle");
6481 size_t bandsize = 0;
6482 size_t nbands;
6483 off_t tm_size;
6484
6485 p = strstr(e->d_name, "sparsebundle");
6486 if (p == NULL) {
6487 return true;
6488 }
6489
6490 if (p[sparsebundle_strlen] != '\0') {
6491 return true;
6492 }
6493
6494 DBG_DEBUG("Processing sparsebundle [%s]\n", e->d_name);
6495
6496 ok = fruit_get_bandsize(handle, e->d_name, &bandsize);
6497 if (!ok) {
6498 /*
6499 * Beware of race conditions: this may be an uninitialized
6500 * Info.plist that a client is just creating. We don't want let
6501 * this to trigger complete failure.
6502 */
6503 DBG_ERR("Processing sparsebundle [%s] failed\n", e->d_name);
6504 return true;
6505 }
6506
6507 ok = fruit_get_num_bands(handle, e->d_name, &nbands);
6508 if (!ok) {
6509 /*
6510 * Beware of race conditions: this may be a backup sparsebundle
6511 * in an early stage lacking a bands subdirectory. We don't want
6512 * let this to trigger complete failure.
6513 */
6514 DBG_ERR("Processing sparsebundle [%s] failed\n", e->d_name);
6515 return true;
6516 }
6517
6518 tm_size = bandsize * nbands;
6519 if (tm_size > UINT64_MAX) {
6520 DBG_ERR("tmsize overflow: bandsize [%zu] nbands [%zu]\n",
6521 bandsize, nbands);
6522 return false;
6523 }
6524
6525 if (state->total_size + tm_size < state->total_size) {
6526 DBG_ERR("tmsize overflow: bandsize [%zu] nbands [%zu]\n",
6527 bandsize, nbands);
6528 return false;
6529 }
6530
6531 state->total_size += tm_size;
6532
6533 DBG_DEBUG("[%s] tm_size [%jd] total_size [%jd]\n",
6534 e->d_name, (intmax_t)tm_size, (intmax_t)state->total_size);
6535
6536 return true;
6537 }
6538
6539 /**
6540 * Calculate used size of a TimeMachine volume
6541 *
6542 * This assumes that the volume is used only for TimeMachine.
6543 *
6544 * - readdir(basedir of share), then
6545 * - for every element that matches regex "^\(.*\)\.sparsebundle$" :
6546 * - parse "\1.sparsebundle/Info.plist" and read the band-size XML key
6547 * - count band files in "\1.sparsebundle/bands/"
6548 * - calculate used size of all bands: band_count * band_size
6549 **/
6550 static uint64_t fruit_disk_free(vfs_handle_struct *handle,
6551 const struct smb_filename *smb_fname,
6552 uint64_t *_bsize,
6553 uint64_t *_dfree,
6554 uint64_t *_dsize)
6555 {
6556 struct fruit_config_data *config = NULL;
6557 struct fruit_disk_free_state state = {0};
6558 DIR *d = NULL;
6559 struct dirent *e = NULL;
6560 uint64_t dfree;
6561 uint64_t dsize;
6562 int ret;
6563 bool ok;
6564
6565 SMB_VFS_HANDLE_GET_DATA(handle, config,
6566 struct fruit_config_data,
6567 return UINT64_MAX);
6568
6569 if (!config->time_machine ||
6570 config->time_machine_max_size == 0)
6571 {
6572 return SMB_VFS_NEXT_DISK_FREE(handle,
6573 smb_fname,
6574 _bsize,
6575 _dfree,
6576 _dsize);
6577 }
6578
6579 d = SMB_VFS_NEXT_OPENDIR(handle, smb_fname, NULL, 0);
6580 if (d == NULL) {
6581 return UINT64_MAX;
6582 }
6583
6584 for (e = SMB_VFS_NEXT_READDIR(handle, d, NULL);
6585 e != NULL;
6586 e = SMB_VFS_NEXT_READDIR(handle, d, NULL))
6587 {
6588 ok = fruit_tmsize_do_dirent(handle, &state, e);
6589 if (!ok) {
6590 SMB_VFS_NEXT_CLOSEDIR(handle, d);
6591 return UINT64_MAX;
6592 }
6593 }
6594
6595 ret = SMB_VFS_NEXT_CLOSEDIR(handle, d);
6596 if (ret != 0) {
6597 return UINT64_MAX;
6598 }
6599
6600 dsize = config->time_machine_max_size / 512;
6601 dfree = dsize - (state.total_size / 512);
6602 if (dfree > dsize) {
6603 dfree = 0;
6604 }
6605
6606 *_bsize = 512;
6607 *_dsize = dsize;
6608 *_dfree = dfree;
6609 return dfree / 2;
6610 }
6611
6612 static struct vfs_fn_pointers vfs_fruit_fns = {
6613 .connect_fn = fruit_connect,
6614 .disk_free_fn = fruit_disk_free,
6615
6616 /* File operations */
6617 .chmod_fn = fruit_chmod,
6618 .chown_fn = fruit_chown,
6619 .unlink_fn = fruit_unlink,
6620 .rename_fn = fruit_rename,
6621 .rmdir_fn = fruit_rmdir,
6622 .open_fn = fruit_open,
6623 .pread_fn = fruit_pread,
6624 .pwrite_fn = fruit_pwrite,
6625 .pread_send_fn = fruit_pread_send,
6626 .pread_recv_fn = fruit_pread_recv,
6627 .pwrite_send_fn = fruit_pwrite_send,
6628 .pwrite_recv_fn = fruit_pwrite_recv,
6629 .stat_fn = fruit_stat,
6630 .lstat_fn = fruit_lstat,
6631 .fstat_fn = fruit_fstat,
6632 .streaminfo_fn = fruit_streaminfo,
6633 .ntimes_fn = fruit_ntimes,
6634 .ftruncate_fn = fruit_ftruncate,
6635 .fallocate_fn = fruit_fallocate,
6636 .create_file_fn = fruit_create_file,
6637 .readdir_attr_fn = fruit_readdir_attr,
6638 .offload_read_send_fn = fruit_offload_read_send,
6639 .offload_read_recv_fn = fruit_offload_read_recv,
6640 .offload_write_send_fn = fruit_offload_write_send,
6641 .offload_write_recv_fn = fruit_offload_write_recv,
6642
6643 /* NT ACL operations */
6644 .fget_nt_acl_fn = fruit_fget_nt_acl,
6645 .fset_nt_acl_fn = fruit_fset_nt_acl,
6646 };
6647
6648 static_decl_vfs;
6649 NTSTATUS vfs_fruit_init(TALLOC_CTX *ctx)
6650 {
6651 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fruit",
6652 &vfs_fruit_fns);
6653 if (!NT_STATUS_IS_OK(ret)) {
6654 return ret;
6655 }
6656
6657 vfs_fruit_debug_level = debug_add_class("fruit");
6658 if (vfs_fruit_debug_level == -1) {
6659 vfs_fruit_debug_level = DBGC_VFS;
6660 DEBUG(0, ("%s: Couldn't register custom debugging class!\n",
6661 "vfs_fruit_init"));
6662 } else {
6663 DEBUG(10, ("%s: Debug class number of '%s': %d\n",
6664 "vfs_fruit_init","fruit",vfs_fruit_debug_level));
6665 }
6666
6667 return ret;
6668 }
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