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smbd: Pass "file_id" explicitly into share_mode_entry_to_message()
[Samba.git] / source3 / modules / vfs_fruit.c
blob40ee2553a12c98a0ddbceec95b5934efe035ec3c
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 size_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 =
1993 (size_t)conv_str_size(tm_size_str);
1994 }
1995
1996 SMB_VFS_HANDLE_SET_DATA(handle, config,
1997 NULL, struct fruit_config_data,
1998 return -1);
1999
2000 return 0;
2001 }
2002
2003 /**
2004 * Prepend "._" to a basename
2005 * Return a new struct smb_filename with stream_name == NULL.
2006 **/
2007 static int adouble_path(TALLOC_CTX *ctx,
2008 const struct smb_filename *smb_fname_in,
2009 struct smb_filename **pp_smb_fname_out)
2010 {
2011 char *parent;
2012 const char *base;
2013 struct smb_filename *smb_fname = cp_smb_filename(ctx,
2014 smb_fname_in);
2015
2016 if (smb_fname == NULL) {
2017 return -1;
2018 }
2019
2020 /* We need streamname to be NULL */
2021 TALLOC_FREE(smb_fname->stream_name);
2022
2023 /* And we're replacing base_name. */
2024 TALLOC_FREE(smb_fname->base_name);
2025
2026 if (!parent_dirname(smb_fname, smb_fname_in->base_name,
2027 &parent, &base)) {
2028 TALLOC_FREE(smb_fname);
2029 return -1;
2030 }
2031
2032 smb_fname->base_name = talloc_asprintf(smb_fname,
2033 "%s/._%s", parent, base);
2034 if (smb_fname->base_name == NULL) {
2035 TALLOC_FREE(smb_fname);
2036 return -1;
2037 }
2038
2039 *pp_smb_fname_out = smb_fname;
2040
2041 return 0;
2042 }
2043
2044 /**
2045 * Allocate and initialize an AfpInfo struct
2046 **/
2047 static AfpInfo *afpinfo_new(TALLOC_CTX *ctx)
2048 {
2049 AfpInfo *ai = talloc_zero(ctx, AfpInfo);
2050 if (ai == NULL) {
2051 return NULL;
2052 }
2053 ai->afpi_Signature = AFP_Signature;
2054 ai->afpi_Version = AFP_Version;
2055 ai->afpi_BackupTime = AD_DATE_START;
2056 return ai;
2057 }
2058
2059 /**
2060 * Pack an AfpInfo struct into a buffer
2061 *
2062 * Buffer size must be at least AFP_INFO_SIZE
2063 * Returns size of packed buffer
2064 **/
2065 static ssize_t afpinfo_pack(const AfpInfo *ai, char *buf)
2066 {
2067 memset(buf, 0, AFP_INFO_SIZE);
2068
2069 RSIVAL(buf, 0, ai->afpi_Signature);
2070 RSIVAL(buf, 4, ai->afpi_Version);
2071 RSIVAL(buf, 12, ai->afpi_BackupTime);
2072 memcpy(buf + 16, ai->afpi_FinderInfo, sizeof(ai->afpi_FinderInfo));
2073
2074 return AFP_INFO_SIZE;
2075 }
2076
2077 /**
2078 * Unpack a buffer into a AfpInfo structure
2079 *
2080 * Buffer size must be at least AFP_INFO_SIZE
2081 * Returns allocated AfpInfo struct
2082 **/
2083 static AfpInfo *afpinfo_unpack(TALLOC_CTX *ctx, const void *data)
2084 {
2085 AfpInfo *ai = talloc_zero(ctx, AfpInfo);
2086 if (ai == NULL) {
2087 return NULL;
2088 }
2089
2090 ai->afpi_Signature = RIVAL(data, 0);
2091 ai->afpi_Version = RIVAL(data, 4);
2092 ai->afpi_BackupTime = RIVAL(data, 12);
2093 memcpy(ai->afpi_FinderInfo, (const char *)data + 16,
2094 sizeof(ai->afpi_FinderInfo));
2095
2096 if (ai->afpi_Signature != AFP_Signature
2097 || ai->afpi_Version != AFP_Version) {
2098 DEBUG(1, ("Bad AfpInfo signature or version\n"));
2099 TALLOC_FREE(ai);
2100 }
2101
2102 return ai;
2103 }
2104
2105 /**
2106 * Fake an inode number from the md5 hash of the (xattr) name
2107 **/
2108 static SMB_INO_T fruit_inode(const SMB_STRUCT_STAT *sbuf, const char *sname)
2109 {
2110 MD5_CTX ctx;
2111 unsigned char hash[16];
2112 SMB_INO_T result;
2113 char *upper_sname;
2114
2115 upper_sname = talloc_strdup_upper(talloc_tos(), sname);
2116 SMB_ASSERT(upper_sname != NULL);
2117
2118 MD5Init(&ctx);
2119 MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_dev),
2120 sizeof(sbuf->st_ex_dev));
2121 MD5Update(&ctx, (const unsigned char *)&(sbuf->st_ex_ino),
2122 sizeof(sbuf->st_ex_ino));
2123 MD5Update(&ctx, (unsigned char *)upper_sname,
2124 talloc_get_size(upper_sname)-1);
2125 MD5Final(hash, &ctx);
2126
2127 TALLOC_FREE(upper_sname);
2128
2129 /* Hopefully all the variation is in the lower 4 (or 8) bytes! */
2130 memcpy(&result, hash, sizeof(result));
2131
2132 DEBUG(10, ("fruit_inode \"%s\": ino=0x%llu\n",
2133 sname, (unsigned long long)result));
2134
2135 return result;
2136 }
2137
2138 static bool add_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
2139 struct stream_struct **streams,
2140 const char *name, off_t size,
2141 off_t alloc_size)
2142 {
2143 struct stream_struct *tmp;
2144
2145 tmp = talloc_realloc(mem_ctx, *streams, struct stream_struct,
2146 (*num_streams)+1);
2147 if (tmp == NULL) {
2148 return false;
2149 }
2150
2151 tmp[*num_streams].name = talloc_asprintf(tmp, "%s:$DATA", name);
2152 if (tmp[*num_streams].name == NULL) {
2153 return false;
2154 }
2155
2156 tmp[*num_streams].size = size;
2157 tmp[*num_streams].alloc_size = alloc_size;
2158
2159 *streams = tmp;
2160 *num_streams += 1;
2161 return true;
2162 }
2163
2164 static bool filter_empty_rsrc_stream(unsigned int *num_streams,
2165 struct stream_struct **streams)
2166 {
2167 struct stream_struct *tmp = *streams;
2168 unsigned int i;
2169
2170 if (*num_streams == 0) {
2171 return true;
2172 }
2173
2174 for (i = 0; i < *num_streams; i++) {
2175 if (strequal_m(tmp[i].name, AFPRESOURCE_STREAM)) {
2176 break;
2177 }
2178 }
2179
2180 if (i == *num_streams) {
2181 return true;
2182 }
2183
2184 if (tmp[i].size > 0) {
2185 return true;
2186 }
2187
2188 TALLOC_FREE(tmp[i].name);
2189 if (*num_streams - 1 > i) {
2190 memmove(&tmp[i], &tmp[i+1],
2191 (*num_streams - i - 1) * sizeof(struct stream_struct));
2192 }
2193
2194 *num_streams -= 1;
2195 return true;
2196 }
2197
2198 static bool del_fruit_stream(TALLOC_CTX *mem_ctx, unsigned int *num_streams,
2199 struct stream_struct **streams,
2200 const char *name)
2201 {
2202 struct stream_struct *tmp = *streams;
2203 unsigned int i;
2204
2205 if (*num_streams == 0) {
2206 return true;
2207 }
2208
2209 for (i = 0; i < *num_streams; i++) {
2210 if (strequal_m(tmp[i].name, name)) {
2211 break;
2212 }
2213 }
2214
2215 if (i == *num_streams) {
2216 return true;
2217 }
2218
2219 TALLOC_FREE(tmp[i].name);
2220 if (*num_streams - 1 > i) {
2221 memmove(&tmp[i], &tmp[i+1],
2222 (*num_streams - i - 1) * sizeof(struct stream_struct));
2223 }
2224
2225 *num_streams -= 1;
2226 return true;
2227 }
2228
2229 static bool ad_empty_finderinfo(const struct adouble *ad)
2230 {
2231 int cmp;
2232 char emptybuf[ADEDLEN_FINDERI] = {0};
2233 char *fi = NULL;
2234
2235 fi = ad_get_entry(ad, ADEID_FINDERI);
2236 if (fi == NULL) {
2237 DBG_ERR("Missing FinderInfo in struct adouble [%p]\n", ad);
2238 return false;
2239 }
2240
2241 cmp = memcmp(emptybuf, fi, ADEDLEN_FINDERI);
2242 return (cmp == 0);
2243 }
2244
2245 static bool ai_empty_finderinfo(const AfpInfo *ai)
2246 {
2247 int cmp;
2248 char emptybuf[ADEDLEN_FINDERI] = {0};
2249
2250 cmp = memcmp(emptybuf, &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
2251 return (cmp == 0);
2252 }
2253
2254 /**
2255 * Update btime with btime from Netatalk
2256 **/
2257 static void update_btime(vfs_handle_struct *handle,
2258 struct smb_filename *smb_fname)
2259 {
2260 uint32_t t;
2261 struct timespec creation_time = {0};
2262 struct adouble *ad;
2263 struct fruit_config_data *config = NULL;
2264
2265 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
2266 return);
2267
2268 switch (config->meta) {
2269 case FRUIT_META_STREAM:
2270 return;
2271 case FRUIT_META_NETATALK:
2272 /* Handled below */
2273 break;
2274 default:
2275 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
2276 return;
2277 }
2278
2279 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
2280 if (ad == NULL) {
2281 return;
2282 }
2283 if (ad_getdate(ad, AD_DATE_UNIX | AD_DATE_CREATE, &t) != 0) {
2284 TALLOC_FREE(ad);
2285 return;
2286 }
2287 TALLOC_FREE(ad);
2288
2289 creation_time.tv_sec = convert_uint32_t_to_time_t(t);
2290 update_stat_ex_create_time(&smb_fname->st, creation_time);
2291
2292 return;
2293 }
2294
2295 /**
2296 * Map an access mask to a Netatalk single byte byte range lock
2297 **/
2298 static off_t access_to_netatalk_brl(enum apple_fork fork_type,
2299 uint32_t access_mask)
2300 {
2301 off_t offset;
2302
2303 switch (access_mask) {
2304 case FILE_READ_DATA:
2305 offset = AD_FILELOCK_OPEN_RD;
2306 break;
2307
2308 case FILE_WRITE_DATA:
2309 case FILE_APPEND_DATA:
2310 offset = AD_FILELOCK_OPEN_WR;
2311 break;
2312
2313 default:
2314 offset = AD_FILELOCK_OPEN_NONE;
2315 break;
2316 }
2317
2318 if (fork_type == APPLE_FORK_RSRC) {
2319 if (offset == AD_FILELOCK_OPEN_NONE) {
2320 offset = AD_FILELOCK_RSRC_OPEN_NONE;
2321 } else {
2322 offset += 2;
2323 }
2324 }
2325
2326 return offset;
2327 }
2328
2329 /**
2330 * Map a deny mode to a Netatalk brl
2331 **/
2332 static off_t denymode_to_netatalk_brl(enum apple_fork fork_type,
2333 uint32_t deny_mode)
2334 {
2335 off_t offset;
2336
2337 switch (deny_mode) {
2338 case DENY_READ:
2339 offset = AD_FILELOCK_DENY_RD;
2340 break;
2341
2342 case DENY_WRITE:
2343 offset = AD_FILELOCK_DENY_WR;
2344 break;
2345
2346 default:
2347 smb_panic("denymode_to_netatalk_brl: bad deny mode\n");
2348 }
2349
2350 if (fork_type == APPLE_FORK_RSRC) {
2351 offset += 2;
2352 }
2353
2354 return offset;
2355 }
2356
2357 /**
2358 * Call fcntl() with an exclusive F_GETLK request in order to
2359 * determine if there's an exisiting shared lock
2360 *
2361 * @return true if the requested lock was found or any error occurred
2362 * false if the lock was not found
2363 **/
2364 static bool test_netatalk_lock(files_struct *fsp, off_t in_offset)
2365 {
2366 bool result;
2367 off_t offset = in_offset;
2368 off_t len = 1;
2369 int type = F_WRLCK;
2370 pid_t pid;
2371
2372 result = SMB_VFS_GETLOCK(fsp, &offset, &len, &type, &pid);
2373 if (result == false) {
2374 return true;
2375 }
2376
2377 if (type != F_UNLCK) {
2378 return true;
2379 }
2380
2381 return false;
2382 }
2383
2384 static NTSTATUS fruit_check_access(vfs_handle_struct *handle,
2385 files_struct *fsp,
2386 uint32_t access_mask,
2387 uint32_t deny_mode)
2388 {
2389 NTSTATUS status = NT_STATUS_OK;
2390 struct byte_range_lock *br_lck = NULL;
2391 bool open_for_reading, open_for_writing, deny_read, deny_write;
2392 off_t off;
2393 bool have_read = false;
2394 int flags;
2395
2396 /* FIXME: hardcoded data fork, add resource fork */
2397 enum apple_fork fork_type = APPLE_FORK_DATA;
2398
2399 DEBUG(10, ("fruit_check_access: %s, am: %s/%s, dm: %s/%s\n",
2400 fsp_str_dbg(fsp),
2401 access_mask & FILE_READ_DATA ? "READ" :"-",
2402 access_mask & FILE_WRITE_DATA ? "WRITE" : "-",
2403 deny_mode & DENY_READ ? "DENY_READ" : "-",
2404 deny_mode & DENY_WRITE ? "DENY_WRITE" : "-"));
2405
2406 if (fsp->fh->fd == -1) {
2407 return NT_STATUS_OK;
2408 }
2409
2410 flags = fcntl(fsp->fh->fd, F_GETFL);
2411 if (flags == -1) {
2412 DBG_ERR("fcntl get flags [%s] fd [%d] failed [%s]\n",
2413 fsp_str_dbg(fsp), fsp->fh->fd, strerror(errno));
2414 return map_nt_error_from_unix(errno);
2415 }
2416
2417 if (flags & (O_RDONLY|O_RDWR)) {
2418 /*
2419 * Applying fcntl read locks requires an fd opened for
2420 * reading. This means we won't be applying locks for
2421 * files openend write-only, but what can we do...
2422 */
2423 have_read = true;
2424 }
2425
2426 /*
2427 * Check read access and deny read mode
2428 */
2429 if ((access_mask & FILE_READ_DATA) || (deny_mode & DENY_READ)) {
2430 /* Check access */
2431 open_for_reading = test_netatalk_lock(
2432 fsp, access_to_netatalk_brl(fork_type, FILE_READ_DATA));
2433
2434 deny_read = test_netatalk_lock(
2435 fsp, denymode_to_netatalk_brl(fork_type, DENY_READ));
2436
2437 DEBUG(10, ("read: %s, deny_write: %s\n",
2438 open_for_reading == true ? "yes" : "no",
2439 deny_read == true ? "yes" : "no"));
2440
2441 if (((access_mask & FILE_READ_DATA) && deny_read)
2442 || ((deny_mode & DENY_READ) && open_for_reading)) {
2443 return NT_STATUS_SHARING_VIOLATION;
2444 }
2445
2446 /* Set locks */
2447 if ((access_mask & FILE_READ_DATA) && have_read) {
2448 off = access_to_netatalk_brl(fork_type, FILE_READ_DATA);
2449 br_lck = do_lock(
2450 handle->conn->sconn->msg_ctx, fsp,
2451 fsp->op->global->open_persistent_id, 1, off,
2452 READ_LOCK, POSIX_LOCK, false,
2453 &status, NULL);
2454
2455 if (!NT_STATUS_IS_OK(status)) {
2456 return status;
2457 }
2458 TALLOC_FREE(br_lck);
2459 }
2460
2461 if ((deny_mode & DENY_READ) && have_read) {
2462 off = denymode_to_netatalk_brl(fork_type, DENY_READ);
2463 br_lck = do_lock(
2464 handle->conn->sconn->msg_ctx, fsp,
2465 fsp->op->global->open_persistent_id, 1, off,
2466 READ_LOCK, POSIX_LOCK, false,
2467 &status, NULL);
2468
2469 if (!NT_STATUS_IS_OK(status)) {
2470 return status;
2471 }
2472 TALLOC_FREE(br_lck);
2473 }
2474 }
2475
2476 /*
2477 * Check write access and deny write mode
2478 */
2479 if ((access_mask & FILE_WRITE_DATA) || (deny_mode & DENY_WRITE)) {
2480 /* Check access */
2481 open_for_writing = test_netatalk_lock(
2482 fsp, access_to_netatalk_brl(fork_type, FILE_WRITE_DATA));
2483
2484 deny_write = test_netatalk_lock(
2485 fsp, denymode_to_netatalk_brl(fork_type, DENY_WRITE));
2486
2487 DEBUG(10, ("write: %s, deny_write: %s\n",
2488 open_for_writing == true ? "yes" : "no",
2489 deny_write == true ? "yes" : "no"));
2490
2491 if (((access_mask & FILE_WRITE_DATA) && deny_write)
2492 || ((deny_mode & DENY_WRITE) && open_for_writing)) {
2493 return NT_STATUS_SHARING_VIOLATION;
2494 }
2495
2496 /* Set locks */
2497 if ((access_mask & FILE_WRITE_DATA) && have_read) {
2498 off = access_to_netatalk_brl(fork_type, FILE_WRITE_DATA);
2499 br_lck = do_lock(
2500 handle->conn->sconn->msg_ctx, fsp,
2501 fsp->op->global->open_persistent_id, 1, off,
2502 READ_LOCK, POSIX_LOCK, false,
2503 &status, NULL);
2504
2505 if (!NT_STATUS_IS_OK(status)) {
2506 return status;
2507 }
2508 TALLOC_FREE(br_lck);
2509
2510 }
2511 if ((deny_mode & DENY_WRITE) && have_read) {
2512 off = denymode_to_netatalk_brl(fork_type, DENY_WRITE);
2513 br_lck = do_lock(
2514 handle->conn->sconn->msg_ctx, fsp,
2515 fsp->op->global->open_persistent_id, 1, off,
2516 READ_LOCK, POSIX_LOCK, false,
2517 &status, NULL);
2518
2519 if (!NT_STATUS_IS_OK(status)) {
2520 return status;
2521 }
2522 TALLOC_FREE(br_lck);
2523 }
2524 }
2525
2526 TALLOC_FREE(br_lck);
2527
2528 return status;
2529 }
2530
2531 static NTSTATUS check_aapl(vfs_handle_struct *handle,
2532 struct smb_request *req,
2533 const struct smb2_create_blobs *in_context_blobs,
2534 struct smb2_create_blobs *out_context_blobs)
2535 {
2536 struct fruit_config_data *config;
2537 NTSTATUS status;
2538 struct smb2_create_blob *aapl = NULL;
2539 uint32_t cmd;
2540 bool ok;
2541 uint8_t p[16];
2542 DATA_BLOB blob = data_blob_talloc(req, NULL, 0);
2543 uint64_t req_bitmap, client_caps;
2544 uint64_t server_caps = SMB2_CRTCTX_AAPL_UNIX_BASED;
2545 smb_ucs2_t *model;
2546 size_t modellen;
2547
2548 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
2549 return NT_STATUS_UNSUCCESSFUL);
2550
2551 if (!config->use_aapl
2552 || in_context_blobs == NULL
2553 || out_context_blobs == NULL) {
2554 return NT_STATUS_OK;
2555 }
2556
2557 aapl = smb2_create_blob_find(in_context_blobs,
2558 SMB2_CREATE_TAG_AAPL);
2559 if (aapl == NULL) {
2560 return NT_STATUS_OK;
2561 }
2562
2563 if (aapl->data.length != 24) {
2564 DEBUG(1, ("unexpected AAPL ctxt length: %ju\n",
2565 (uintmax_t)aapl->data.length));
2566 return NT_STATUS_INVALID_PARAMETER;
2567 }
2568
2569 cmd = IVAL(aapl->data.data, 0);
2570 if (cmd != SMB2_CRTCTX_AAPL_SERVER_QUERY) {
2571 DEBUG(1, ("unsupported AAPL cmd: %d\n", cmd));
2572 return NT_STATUS_INVALID_PARAMETER;
2573 }
2574
2575 req_bitmap = BVAL(aapl->data.data, 8);
2576 client_caps = BVAL(aapl->data.data, 16);
2577
2578 SIVAL(p, 0, SMB2_CRTCTX_AAPL_SERVER_QUERY);
2579 SIVAL(p, 4, 0);
2580 SBVAL(p, 8, req_bitmap);
2581 ok = data_blob_append(req, &blob, p, 16);
2582 if (!ok) {
2583 return NT_STATUS_UNSUCCESSFUL;
2584 }
2585
2586 if (req_bitmap & SMB2_CRTCTX_AAPL_SERVER_CAPS) {
2587 if ((client_caps & SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR) &&
2588 (handle->conn->tcon->compat->fs_capabilities & FILE_NAMED_STREAMS)) {
2589 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_READ_DIR_ATTR;
2590 config->readdir_attr_enabled = true;
2591 }
2592
2593 if (config->use_copyfile) {
2594 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_OSX_COPYFILE;
2595 config->copyfile_enabled = true;
2596 }
2597
2598 /*
2599 * The client doesn't set the flag, so we can't check
2600 * for it and just set it unconditionally
2601 */
2602 if (config->unix_info_enabled) {
2603 server_caps |= SMB2_CRTCTX_AAPL_SUPPORTS_NFS_ACE;
2604 }
2605
2606 SBVAL(p, 0, server_caps);
2607 ok = data_blob_append(req, &blob, p, 8);
2608 if (!ok) {
2609 return NT_STATUS_UNSUCCESSFUL;
2610 }
2611 }
2612
2613 if (req_bitmap & SMB2_CRTCTX_AAPL_VOLUME_CAPS) {
2614 int val = lp_case_sensitive(SNUM(handle->conn->tcon->compat));
2615 uint64_t caps = 0;
2616
2617 switch (val) {
2618 case Auto:
2619 break;
2620
2621 case True:
2622 caps |= SMB2_CRTCTX_AAPL_CASE_SENSITIVE;
2623 break;
2624
2625 default:
2626 break;
2627 }
2628
2629 if (config->time_machine) {
2630 caps |= SMB2_CRTCTX_AAPL_FULL_SYNC;
2631 }
2632
2633 SBVAL(p, 0, caps);
2634
2635 ok = data_blob_append(req, &blob, p, 8);
2636 if (!ok) {
2637 return NT_STATUS_UNSUCCESSFUL;
2638 }
2639 }
2640
2641 if (req_bitmap & SMB2_CRTCTX_AAPL_MODEL_INFO) {
2642 ok = convert_string_talloc(req,
2643 CH_UNIX, CH_UTF16LE,
2644 config->model, strlen(config->model),
2645 &model, &modellen);
2646 if (!ok) {
2647 return NT_STATUS_UNSUCCESSFUL;
2648 }
2649
2650 SIVAL(p, 0, 0);
2651 SIVAL(p + 4, 0, modellen);
2652 ok = data_blob_append(req, &blob, p, 8);
2653 if (!ok) {
2654 talloc_free(model);
2655 return NT_STATUS_UNSUCCESSFUL;
2656 }
2657
2658 ok = data_blob_append(req, &blob, model, modellen);
2659 talloc_free(model);
2660 if (!ok) {
2661 return NT_STATUS_UNSUCCESSFUL;
2662 }
2663 }
2664
2665 status = smb2_create_blob_add(out_context_blobs,
2666 out_context_blobs,
2667 SMB2_CREATE_TAG_AAPL,
2668 blob);
2669 if (NT_STATUS_IS_OK(status)) {
2670 global_fruit_config.nego_aapl = true;
2671 if (config->aapl_zero_file_id) {
2672 aapl_force_zero_file_id(handle->conn->sconn);
2673 }
2674 }
2675
2676 return status;
2677 }
2678
2679 static bool readdir_attr_meta_finderi_stream(
2680 struct vfs_handle_struct *handle,
2681 const struct smb_filename *smb_fname,
2682 AfpInfo *ai)
2683 {
2684 struct smb_filename *stream_name = NULL;
2685 files_struct *fsp = NULL;
2686 ssize_t nread;
2687 NTSTATUS status;
2688 int ret;
2689 bool ok;
2690 uint8_t buf[AFP_INFO_SIZE];
2691
2692 stream_name = synthetic_smb_fname(talloc_tos(),
2693 smb_fname->base_name,
2694 AFPINFO_STREAM_NAME,
2695 NULL, smb_fname->flags);
2696 if (stream_name == NULL) {
2697 return false;
2698 }
2699
2700 ret = SMB_VFS_STAT(handle->conn, stream_name);
2701 if (ret != 0) {
2702 return false;
2703 }
2704
2705 status = SMB_VFS_CREATE_FILE(
2706 handle->conn, /* conn */
2707 NULL, /* req */
2708 0, /* root_dir_fid */
2709 stream_name, /* fname */
2710 FILE_READ_DATA, /* access_mask */
2711 (FILE_SHARE_READ | FILE_SHARE_WRITE | /* share_access */
2712 FILE_SHARE_DELETE),
2713 FILE_OPEN, /* create_disposition*/
2714 0, /* create_options */
2715 0, /* file_attributes */
2716 INTERNAL_OPEN_ONLY, /* oplock_request */
2717 NULL, /* lease */
2718 0, /* allocation_size */
2719 0, /* private_flags */
2720 NULL, /* sd */
2721 NULL, /* ea_list */
2722 &fsp, /* result */
2723 NULL, /* pinfo */
2724 NULL, NULL); /* create context */
2725
2726 TALLOC_FREE(stream_name);
2727
2728 if (!NT_STATUS_IS_OK(status)) {
2729 return false;
2730 }
2731
2732 nread = SMB_VFS_PREAD(fsp, &buf[0], AFP_INFO_SIZE, 0);
2733 if (nread != AFP_INFO_SIZE) {
2734 DBG_ERR("short read [%s] [%zd/%d]\n",
2735 smb_fname_str_dbg(stream_name), nread, AFP_INFO_SIZE);
2736 ok = false;
2737 goto fail;
2738 }
2739
2740 memcpy(&ai->afpi_FinderInfo[0], &buf[AFP_OFF_FinderInfo],
2741 AFP_FinderSize);
2742
2743 ok = true;
2744
2745 fail:
2746 if (fsp != NULL) {
2747 close_file(NULL, fsp, NORMAL_CLOSE);
2748 }
2749
2750 return ok;
2751 }
2752
2753 static bool readdir_attr_meta_finderi_netatalk(
2754 struct vfs_handle_struct *handle,
2755 const struct smb_filename *smb_fname,
2756 AfpInfo *ai)
2757 {
2758 struct adouble *ad = NULL;
2759 char *p = NULL;
2760
2761 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
2762 if (ad == NULL) {
2763 return false;
2764 }
2765
2766 p = ad_get_entry(ad, ADEID_FINDERI);
2767 if (p == NULL) {
2768 DBG_ERR("No ADEID_FINDERI for [%s]\n", smb_fname->base_name);
2769 TALLOC_FREE(ad);
2770 return false;
2771 }
2772
2773 memcpy(&ai->afpi_FinderInfo[0], p, AFP_FinderSize);
2774 TALLOC_FREE(ad);
2775 return true;
2776 }
2777
2778 static bool readdir_attr_meta_finderi(struct vfs_handle_struct *handle,
2779 const struct smb_filename *smb_fname,
2780 struct readdir_attr_data *attr_data)
2781 {
2782 struct fruit_config_data *config = NULL;
2783 uint32_t date_added;
2784 AfpInfo ai = {0};
2785 bool ok;
2786
2787 SMB_VFS_HANDLE_GET_DATA(handle, config,
2788 struct fruit_config_data,
2789 return false);
2790
2791 switch (config->meta) {
2792 case FRUIT_META_NETATALK:
2793 ok = readdir_attr_meta_finderi_netatalk(
2794 handle, smb_fname, &ai);
2795 break;
2796
2797 case FRUIT_META_STREAM:
2798 ok = readdir_attr_meta_finderi_stream(
2799 handle, smb_fname, &ai);
2800 break;
2801
2802 default:
2803 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
2804 return false;
2805 }
2806
2807 if (!ok) {
2808 /* Don't bother with errors, it's likely ENOENT */
2809 return true;
2810 }
2811
2812 if (S_ISREG(smb_fname->st.st_ex_mode)) {
2813 /* finder_type */
2814 memcpy(&attr_data->attr_data.aapl.finder_info[0],
2815 &ai.afpi_FinderInfo[0], 4);
2816
2817 /* finder_creator */
2818 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 4,
2819 &ai.afpi_FinderInfo[4], 4);
2820 }
2821
2822 /* finder_flags */
2823 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 8,
2824 &ai.afpi_FinderInfo[8], 2);
2825
2826 /* finder_ext_flags */
2827 memcpy(&attr_data->attr_data.aapl.finder_info[0] + 10,
2828 &ai.afpi_FinderInfo[24], 2);
2829
2830 /* creation date */
2831 date_added = convert_time_t_to_uint32_t(
2832 smb_fname->st.st_ex_btime.tv_sec - AD_DATE_DELTA);
2833
2834 RSIVAL(&attr_data->attr_data.aapl.finder_info[0], 12, date_added);
2835
2836 return true;
2837 }
2838
2839 static uint64_t readdir_attr_rfork_size_adouble(
2840 struct vfs_handle_struct *handle,
2841 const struct smb_filename *smb_fname)
2842 {
2843 struct adouble *ad = NULL;
2844 uint64_t rfork_size;
2845
2846 ad = ad_get(talloc_tos(), handle, smb_fname,
2847 ADOUBLE_RSRC);
2848 if (ad == NULL) {
2849 return 0;
2850 }
2851
2852 rfork_size = ad_getentrylen(ad, ADEID_RFORK);
2853 TALLOC_FREE(ad);
2854
2855 return rfork_size;
2856 }
2857
2858 static uint64_t readdir_attr_rfork_size_stream(
2859 struct vfs_handle_struct *handle,
2860 const struct smb_filename *smb_fname)
2861 {
2862 struct smb_filename *stream_name = NULL;
2863 int ret;
2864 uint64_t rfork_size;
2865
2866 stream_name = synthetic_smb_fname(talloc_tos(),
2867 smb_fname->base_name,
2868 AFPRESOURCE_STREAM_NAME,
2869 NULL, 0);
2870 if (stream_name == NULL) {
2871 return 0;
2872 }
2873
2874 ret = SMB_VFS_STAT(handle->conn, stream_name);
2875 if (ret != 0) {
2876 TALLOC_FREE(stream_name);
2877 return 0;
2878 }
2879
2880 rfork_size = stream_name->st.st_ex_size;
2881 TALLOC_FREE(stream_name);
2882
2883 return rfork_size;
2884 }
2885
2886 static uint64_t readdir_attr_rfork_size(struct vfs_handle_struct *handle,
2887 const struct smb_filename *smb_fname)
2888 {
2889 struct fruit_config_data *config = NULL;
2890 uint64_t rfork_size;
2891
2892 SMB_VFS_HANDLE_GET_DATA(handle, config,
2893 struct fruit_config_data,
2894 return 0);
2895
2896 switch (config->rsrc) {
2897 case FRUIT_RSRC_ADFILE:
2898 case FRUIT_RSRC_XATTR:
2899 rfork_size = readdir_attr_rfork_size_adouble(handle,
2900 smb_fname);
2901 break;
2902
2903 case FRUIT_META_STREAM:
2904 rfork_size = readdir_attr_rfork_size_stream(handle,
2905 smb_fname);
2906 break;
2907
2908 default:
2909 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
2910 rfork_size = 0;
2911 break;
2912 }
2913
2914 return rfork_size;
2915 }
2916
2917 static NTSTATUS readdir_attr_macmeta(struct vfs_handle_struct *handle,
2918 const struct smb_filename *smb_fname,
2919 struct readdir_attr_data *attr_data)
2920 {
2921 NTSTATUS status = NT_STATUS_OK;
2922 struct fruit_config_data *config = NULL;
2923 bool ok;
2924
2925 SMB_VFS_HANDLE_GET_DATA(handle, config,
2926 struct fruit_config_data,
2927 return NT_STATUS_UNSUCCESSFUL);
2928
2929
2930 /* Ensure we return a default value in the creation_date field */
2931 RSIVAL(&attr_data->attr_data.aapl.finder_info, 12, AD_DATE_START);
2932
2933 /*
2934 * Resource fork length
2935 */
2936
2937 if (config->readdir_attr_rsize) {
2938 uint64_t rfork_size;
2939
2940 rfork_size = readdir_attr_rfork_size(handle, smb_fname);
2941 attr_data->attr_data.aapl.rfork_size = rfork_size;
2942 }
2943
2944 /*
2945 * FinderInfo
2946 */
2947
2948 if (config->readdir_attr_finder_info) {
2949 ok = readdir_attr_meta_finderi(handle, smb_fname, attr_data);
2950 if (!ok) {
2951 status = NT_STATUS_INTERNAL_ERROR;
2952 }
2953 }
2954
2955 return status;
2956 }
2957
2958 /* Search MS NFS style ACE with UNIX mode */
2959 static NTSTATUS check_ms_nfs(vfs_handle_struct *handle,
2960 files_struct *fsp,
2961 const struct security_descriptor *psd,
2962 mode_t *pmode,
2963 bool *pdo_chmod)
2964 {
2965 uint32_t i;
2966 struct fruit_config_data *config = NULL;
2967
2968 *pdo_chmod = false;
2969
2970 SMB_VFS_HANDLE_GET_DATA(handle, config,
2971 struct fruit_config_data,
2972 return NT_STATUS_UNSUCCESSFUL);
2973
2974 if (!global_fruit_config.nego_aapl) {
2975 return NT_STATUS_OK;
2976 }
2977 if (psd->dacl == NULL || !config->unix_info_enabled) {
2978 return NT_STATUS_OK;
2979 }
2980
2981 for (i = 0; i < psd->dacl->num_aces; i++) {
2982 if (dom_sid_compare_domain(
2983 &global_sid_Unix_NFS_Mode,
2984 &psd->dacl->aces[i].trustee) == 0) {
2985 *pmode = (mode_t)psd->dacl->aces[i].trustee.sub_auths[2];
2986 *pmode &= (S_IRWXU | S_IRWXG | S_IRWXO);
2987 *pdo_chmod = true;
2988
2989 DEBUG(10, ("MS NFS chmod request %s, %04o\n",
2990 fsp_str_dbg(fsp), (unsigned)(*pmode)));
2991 break;
2992 }
2993 }
2994
2995 return NT_STATUS_OK;
2996 }
2997
2998 /****************************************************************************
2999 * VFS ops
3000 ****************************************************************************/
3001
3002 static int fruit_connect(vfs_handle_struct *handle,
3003 const char *service,
3004 const char *user)
3005 {
3006 int rc;
3007 char *list = NULL, *newlist = NULL;
3008 struct fruit_config_data *config;
3009
3010 DEBUG(10, ("fruit_connect\n"));
3011
3012 rc = SMB_VFS_NEXT_CONNECT(handle, service, user);
3013 if (rc < 0) {
3014 return rc;
3015 }
3016
3017 rc = init_fruit_config(handle);
3018 if (rc != 0) {
3019 return rc;
3020 }
3021
3022 SMB_VFS_HANDLE_GET_DATA(handle, config,
3023 struct fruit_config_data, return -1);
3024
3025 if (config->veto_appledouble) {
3026 list = lp_veto_files(talloc_tos(), SNUM(handle->conn));
3027
3028 if (list) {
3029 if (strstr(list, "/" ADOUBLE_NAME_PREFIX "*/") == NULL) {
3030 newlist = talloc_asprintf(
3031 list,
3032 "%s/" ADOUBLE_NAME_PREFIX "*/",
3033 list);
3034 lp_do_parameter(SNUM(handle->conn),
3035 "veto files",
3036 newlist);
3037 }
3038 } else {
3039 lp_do_parameter(SNUM(handle->conn),
3040 "veto files",
3041 "/" ADOUBLE_NAME_PREFIX "*/");
3042 }
3043
3044 TALLOC_FREE(list);
3045 }
3046
3047 if (config->encoding == FRUIT_ENC_NATIVE) {
3048 lp_do_parameter(SNUM(handle->conn),
3049 "catia:mappings",
3050 fruit_catia_maps);
3051 }
3052
3053 if (config->time_machine) {
3054 DBG_NOTICE("Enabling durable handles for Time Machine "
3055 "support on [%s]\n", service);
3056 lp_do_parameter(SNUM(handle->conn), "durable handles", "yes");
3057 lp_do_parameter(SNUM(handle->conn), "kernel oplocks", "no");
3058 lp_do_parameter(SNUM(handle->conn), "kernel share modes", "no");
3059 if (!lp_strict_sync(SNUM(handle->conn))) {
3060 DBG_WARNING("Time Machine without strict sync is not "
3061 "recommended!\n");
3062 }
3063 lp_do_parameter(SNUM(handle->conn), "posix locking", "no");
3064 }
3065
3066 return rc;
3067 }
3068
3069 static int fruit_open_meta_stream(vfs_handle_struct *handle,
3070 struct smb_filename *smb_fname,
3071 files_struct *fsp,
3072 int flags,
3073 mode_t mode)
3074 {
3075 AfpInfo *ai = NULL;
3076 char afpinfo_buf[AFP_INFO_SIZE];
3077 ssize_t len, written;
3078 int hostfd = -1;
3079 int rc = -1;
3080
3081 hostfd = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
3082 if (hostfd == -1) {
3083 return -1;
3084 }
3085
3086 if (!(flags & (O_CREAT | O_TRUNC))) {
3087 return hostfd;
3088 }
3089
3090 ai = afpinfo_new(talloc_tos());
3091 if (ai == NULL) {
3092 rc = -1;
3093 goto fail;
3094 }
3095
3096 len = afpinfo_pack(ai, afpinfo_buf);
3097 if (len != AFP_INFO_SIZE) {
3098 rc = -1;
3099 goto fail;
3100 }
3101
3102 /* Set fd, needed in SMB_VFS_NEXT_PWRITE() */
3103 fsp->fh->fd = hostfd;
3104
3105 written = SMB_VFS_NEXT_PWRITE(handle, fsp, afpinfo_buf,
3106 AFP_INFO_SIZE, 0);
3107 fsp->fh->fd = -1;
3108 if (written != AFP_INFO_SIZE) {
3109 DBG_ERR("bad write [%zd/%d]\n", written, AFP_INFO_SIZE);
3110 rc = -1;
3111 goto fail;
3112 }
3113
3114 rc = 0;
3115
3116 fail:
3117 DBG_DEBUG("rc=%d, fd=%d\n", rc, hostfd);
3118
3119 if (rc != 0) {
3120 int saved_errno = errno;
3121 if (hostfd >= 0) {
3122 fsp->fh->fd = hostfd;
3123 SMB_VFS_NEXT_CLOSE(handle, fsp);
3124 }
3125 hostfd = -1;
3126 errno = saved_errno;
3127 }
3128 return hostfd;
3129 }
3130
3131 static int fruit_open_meta_netatalk(vfs_handle_struct *handle,
3132 struct smb_filename *smb_fname,
3133 files_struct *fsp,
3134 int flags,
3135 mode_t mode)
3136 {
3137 int rc;
3138 int fakefd = -1;
3139 struct adouble *ad = NULL;
3140 int fds[2];
3141
3142 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
3143
3144 /*
3145 * Return a valid fd, but ensure any attempt to use it returns an error
3146 * (EPIPE). All operations on the smb_fname or the fsp will use path
3147 * based syscalls.
3148 */
3149 rc = pipe(fds);
3150 if (rc != 0) {
3151 goto exit;
3152 }
3153 fakefd = fds[0];
3154 close(fds[1]);
3155
3156 if (flags & (O_CREAT | O_TRUNC)) {
3157 /*
3158 * The attribute does not exist or needs to be truncated,
3159 * create an AppleDouble EA
3160 */
3161 ad = ad_init(fsp, handle, ADOUBLE_META);
3162 if (ad == NULL) {
3163 rc = -1;
3164 goto exit;
3165 }
3166
3167 rc = ad_set(ad, fsp->fsp_name);
3168 if (rc != 0) {
3169 rc = -1;
3170 goto exit;
3171 }
3172
3173 TALLOC_FREE(ad);
3174 }
3175
3176 exit:
3177 DEBUG(10, ("fruit_open meta rc=%d, fd=%d\n", rc, fakefd));
3178 if (rc != 0) {
3179 int saved_errno = errno;
3180 if (fakefd >= 0) {
3181 close(fakefd);
3182 }
3183 fakefd = -1;
3184 errno = saved_errno;
3185 }
3186 return fakefd;
3187 }
3188
3189 static int fruit_open_meta(vfs_handle_struct *handle,
3190 struct smb_filename *smb_fname,
3191 files_struct *fsp, int flags, mode_t mode)
3192 {
3193 int fd;
3194 struct fruit_config_data *config = NULL;
3195 struct fio *fio = NULL;
3196
3197 DBG_DEBUG("path [%s]\n", smb_fname_str_dbg(smb_fname));
3198
3199 SMB_VFS_HANDLE_GET_DATA(handle, config,
3200 struct fruit_config_data, return -1);
3201
3202 switch (config->meta) {
3203 case FRUIT_META_STREAM:
3204 fd = fruit_open_meta_stream(handle, smb_fname,
3205 fsp, flags, mode);
3206 break;
3207
3208 case FRUIT_META_NETATALK:
3209 fd = fruit_open_meta_netatalk(handle, smb_fname,
3210 fsp, flags, mode);
3211 break;
3212
3213 default:
3214 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
3215 return -1;
3216 }
3217
3218 DBG_DEBUG("path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
3219
3220 if (fd == -1) {
3221 return -1;
3222 }
3223
3224 fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, NULL);
3225 fio->type = ADOUBLE_META;
3226 fio->config = config;
3227
3228 return fd;
3229 }
3230
3231 static int fruit_open_rsrc_adouble(vfs_handle_struct *handle,
3232 struct smb_filename *smb_fname,
3233 files_struct *fsp,
3234 int flags,
3235 mode_t mode)
3236 {
3237 int rc = 0;
3238 struct adouble *ad = NULL;
3239 struct smb_filename *smb_fname_base = NULL;
3240 struct fruit_config_data *config = NULL;
3241 int hostfd = -1;
3242
3243 SMB_VFS_HANDLE_GET_DATA(handle, config,
3244 struct fruit_config_data, return -1);
3245
3246 if ((!(flags & O_CREAT)) &&
3247 S_ISDIR(fsp->base_fsp->fsp_name->st.st_ex_mode))
3248 {
3249 /* sorry, but directories don't habe a resource fork */
3250 rc = -1;
3251 goto exit;
3252 }
3253
3254 rc = adouble_path(talloc_tos(), smb_fname, &smb_fname_base);
3255 if (rc != 0) {
3256 goto exit;
3257 }
3258
3259 /* Sanitize flags */
3260 if (flags & O_WRONLY) {
3261 /* We always need read access for the metadata header too */
3262 flags &= ~O_WRONLY;
3263 flags |= O_RDWR;
3264 }
3265
3266 hostfd = SMB_VFS_NEXT_OPEN(handle, smb_fname_base, fsp,
3267 flags, mode);
3268 if (hostfd == -1) {
3269 rc = -1;
3270 goto exit;
3271 }
3272
3273 if (flags & (O_CREAT | O_TRUNC)) {
3274 ad = ad_init(fsp, handle, ADOUBLE_RSRC);
3275 if (ad == NULL) {
3276 rc = -1;
3277 goto exit;
3278 }
3279
3280 fsp->fh->fd = hostfd;
3281
3282 rc = ad_fset(ad, fsp);
3283 fsp->fh->fd = -1;
3284 if (rc != 0) {
3285 rc = -1;
3286 goto exit;
3287 }
3288 TALLOC_FREE(ad);
3289 }
3290
3291 exit:
3292
3293 TALLOC_FREE(smb_fname_base);
3294
3295 DEBUG(10, ("fruit_open resource fork: rc=%d, fd=%d\n", rc, hostfd));
3296 if (rc != 0) {
3297 int saved_errno = errno;
3298 if (hostfd >= 0) {
3299 /*
3300 * BUGBUGBUG -- we would need to call
3301 * fd_close_posix here, but we don't have a
3302 * full fsp yet
3303 */
3304 fsp->fh->fd = hostfd;
3305 SMB_VFS_CLOSE(fsp);
3306 }
3307 hostfd = -1;
3308 errno = saved_errno;
3309 }
3310 return hostfd;
3311 }
3312
3313 static int fruit_open_rsrc_xattr(vfs_handle_struct *handle,
3314 struct smb_filename *smb_fname,
3315 files_struct *fsp,
3316 int flags,
3317 mode_t mode)
3318 {
3319 #ifdef HAVE_ATTROPEN
3320 int fd = -1;
3321
3322 fd = attropen(smb_fname->base_name,
3323 AFPRESOURCE_EA_NETATALK,
3324 flags,
3325 mode);
3326 if (fd == -1) {
3327 return -1;
3328 }
3329
3330 return fd;
3331
3332 #else
3333 errno = ENOSYS;
3334 return -1;
3335 #endif
3336 }
3337
3338 static int fruit_open_rsrc(vfs_handle_struct *handle,
3339 struct smb_filename *smb_fname,
3340 files_struct *fsp, int flags, mode_t mode)
3341 {
3342 int fd;
3343 struct fruit_config_data *config = NULL;
3344 struct fio *fio = NULL;
3345
3346 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
3347
3348 SMB_VFS_HANDLE_GET_DATA(handle, config,
3349 struct fruit_config_data, return -1);
3350
3351 if (((flags & O_ACCMODE) == O_RDONLY)
3352 && (flags & O_CREAT)
3353 && !VALID_STAT(fsp->fsp_name->st))
3354 {
3355 /*
3356 * This means the stream doesn't exist. macOS SMB server fails
3357 * this with NT_STATUS_OBJECT_NAME_NOT_FOUND, so must we. Cf bug
3358 * 12565 and the test for this combination in
3359 * test_rfork_create().
3360 */
3361 errno = ENOENT;
3362 return -1;
3363 }
3364
3365 switch (config->rsrc) {
3366 case FRUIT_RSRC_STREAM:
3367 fd = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
3368 break;
3369
3370 case FRUIT_RSRC_ADFILE:
3371 fd = fruit_open_rsrc_adouble(handle, smb_fname,
3372 fsp, flags, mode);
3373 break;
3374
3375 case FRUIT_RSRC_XATTR:
3376 fd = fruit_open_rsrc_xattr(handle, smb_fname,
3377 fsp, flags, mode);
3378 break;
3379
3380 default:
3381 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
3382 return -1;
3383 }
3384
3385 DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
3386
3387 if (fd == -1) {
3388 return -1;
3389 }
3390
3391 fio = VFS_ADD_FSP_EXTENSION(handle, fsp, struct fio, NULL);
3392 fio->type = ADOUBLE_RSRC;
3393 fio->config = config;
3394
3395 return fd;
3396 }
3397
3398 static int fruit_open(vfs_handle_struct *handle,
3399 struct smb_filename *smb_fname,
3400 files_struct *fsp, int flags, mode_t mode)
3401 {
3402 int fd;
3403
3404 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
3405
3406 if (!is_ntfs_stream_smb_fname(smb_fname)) {
3407 return SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
3408 }
3409
3410 if (is_afpinfo_stream(smb_fname)) {
3411 fd = fruit_open_meta(handle, smb_fname, fsp, flags, mode);
3412 } else if (is_afpresource_stream(smb_fname)) {
3413 fd = fruit_open_rsrc(handle, smb_fname, fsp, flags, mode);
3414 } else {
3415 fd = SMB_VFS_NEXT_OPEN(handle, smb_fname, fsp, flags, mode);
3416 }
3417
3418 DBG_DEBUG("Path [%s] fd [%d]\n", smb_fname_str_dbg(smb_fname), fd);
3419
3420 return fd;
3421 }
3422
3423 static int fruit_rename(struct vfs_handle_struct *handle,
3424 const struct smb_filename *smb_fname_src,
3425 const struct smb_filename *smb_fname_dst)
3426 {
3427 int rc = -1;
3428 struct fruit_config_data *config = NULL;
3429 struct smb_filename *src_adp_smb_fname = NULL;
3430 struct smb_filename *dst_adp_smb_fname = NULL;
3431
3432 SMB_VFS_HANDLE_GET_DATA(handle, config,
3433 struct fruit_config_data, return -1);
3434
3435 if (!VALID_STAT(smb_fname_src->st)) {
3436 DBG_ERR("Need valid stat for [%s]\n",
3437 smb_fname_str_dbg(smb_fname_src));
3438 return -1;
3439 }
3440
3441 rc = SMB_VFS_NEXT_RENAME(handle, smb_fname_src, smb_fname_dst);
3442 if (rc != 0) {
3443 return -1;
3444 }
3445
3446 if ((config->rsrc != FRUIT_RSRC_ADFILE) ||
3447 (!S_ISREG(smb_fname_src->st.st_ex_mode)))
3448 {
3449 return 0;
3450 }
3451
3452 rc = adouble_path(talloc_tos(), smb_fname_src, &src_adp_smb_fname);
3453 if (rc != 0) {
3454 goto done;
3455 }
3456
3457 rc = adouble_path(talloc_tos(), smb_fname_dst, &dst_adp_smb_fname);
3458 if (rc != 0) {
3459 goto done;
3460 }
3461
3462 DBG_DEBUG("%s -> %s\n",
3463 smb_fname_str_dbg(src_adp_smb_fname),
3464 smb_fname_str_dbg(dst_adp_smb_fname));
3465
3466 rc = SMB_VFS_NEXT_RENAME(handle, src_adp_smb_fname, dst_adp_smb_fname);
3467 if (errno == ENOENT) {
3468 rc = 0;
3469 }
3470
3471 done:
3472 TALLOC_FREE(src_adp_smb_fname);
3473 TALLOC_FREE(dst_adp_smb_fname);
3474 return rc;
3475 }
3476
3477 static int fruit_unlink_meta_stream(vfs_handle_struct *handle,
3478 const struct smb_filename *smb_fname)
3479 {
3480 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
3481 }
3482
3483 static int fruit_unlink_meta_netatalk(vfs_handle_struct *handle,
3484 const struct smb_filename *smb_fname)
3485 {
3486 return SMB_VFS_REMOVEXATTR(handle->conn,
3487 smb_fname,
3488 AFPINFO_EA_NETATALK);
3489 }
3490
3491 static int fruit_unlink_meta(vfs_handle_struct *handle,
3492 const struct smb_filename *smb_fname)
3493 {
3494 struct fruit_config_data *config = NULL;
3495 int rc;
3496
3497 SMB_VFS_HANDLE_GET_DATA(handle, config,
3498 struct fruit_config_data, return -1);
3499
3500 switch (config->meta) {
3501 case FRUIT_META_STREAM:
3502 rc = fruit_unlink_meta_stream(handle, smb_fname);
3503 break;
3504
3505 case FRUIT_META_NETATALK:
3506 rc = fruit_unlink_meta_netatalk(handle, smb_fname);
3507 break;
3508
3509 default:
3510 DBG_ERR("Unsupported meta config [%d]\n", config->meta);
3511 return -1;
3512 }
3513
3514 return rc;
3515 }
3516
3517 static int fruit_unlink_rsrc_stream(vfs_handle_struct *handle,
3518 const struct smb_filename *smb_fname,
3519 bool force_unlink)
3520 {
3521 int ret;
3522
3523 if (!force_unlink) {
3524 struct smb_filename *smb_fname_cp = NULL;
3525 off_t size;
3526
3527 smb_fname_cp = cp_smb_filename(talloc_tos(), smb_fname);
3528 if (smb_fname_cp == NULL) {
3529 return -1;
3530 }
3531
3532 /*
3533 * 0 byte resource fork streams are not listed by
3534 * vfs_streaminfo, as a result stream cleanup/deletion of file
3535 * deletion doesn't remove the resourcefork stream.
3536 */
3537
3538 ret = SMB_VFS_NEXT_STAT(handle, smb_fname_cp);
3539 if (ret != 0) {
3540 TALLOC_FREE(smb_fname_cp);
3541 DBG_ERR("stat [%s] failed [%s]\n",
3542 smb_fname_str_dbg(smb_fname_cp), strerror(errno));
3543 return -1;
3544 }
3545
3546 size = smb_fname_cp->st.st_ex_size;
3547 TALLOC_FREE(smb_fname_cp);
3548
3549 if (size > 0) {
3550 /* OS X ignores resource fork stream delete requests */
3551 return 0;
3552 }
3553 }
3554
3555 ret = SMB_VFS_NEXT_UNLINK(handle, smb_fname);
3556 if ((ret != 0) && (errno == ENOENT) && force_unlink) {
3557 ret = 0;
3558 }
3559
3560 return ret;
3561 }
3562
3563 static int fruit_unlink_rsrc_adouble(vfs_handle_struct *handle,
3564 const struct smb_filename *smb_fname,
3565 bool force_unlink)
3566 {
3567 int rc;
3568 struct adouble *ad = NULL;
3569 struct smb_filename *adp_smb_fname = NULL;
3570
3571 if (!force_unlink) {
3572 ad = ad_get(talloc_tos(), handle, smb_fname,
3573 ADOUBLE_RSRC);
3574 if (ad == NULL) {
3575 errno = ENOENT;
3576 return -1;
3577 }
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 if (ad_getentrylen(ad, ADEID_RFORK) > 0) {
3587 /* OS X ignores resource fork stream delete requests */
3588 TALLOC_FREE(ad);
3589 return 0;
3590 }
3591
3592 TALLOC_FREE(ad);
3593 }
3594
3595 rc = adouble_path(talloc_tos(), smb_fname, &adp_smb_fname);
3596 if (rc != 0) {
3597 return -1;
3598 }
3599
3600 rc = SMB_VFS_NEXT_UNLINK(handle, adp_smb_fname);
3601 TALLOC_FREE(adp_smb_fname);
3602 if ((rc != 0) && (errno == ENOENT) && force_unlink) {
3603 rc = 0;
3604 }
3605
3606 return rc;
3607 }
3608
3609 static int fruit_unlink_rsrc_xattr(vfs_handle_struct *handle,
3610 const struct smb_filename *smb_fname,
3611 bool force_unlink)
3612 {
3613 /*
3614 * OS X ignores resource fork stream delete requests, so nothing to do
3615 * here. Removing the file will remove the xattr anyway, so we don't
3616 * have to take care of removing 0 byte resource forks that could be
3617 * left behind.
3618 */
3619 return 0;
3620 }
3621
3622 static int fruit_unlink_rsrc(vfs_handle_struct *handle,
3623 const struct smb_filename *smb_fname,
3624 bool force_unlink)
3625 {
3626 struct fruit_config_data *config = NULL;
3627 int rc;
3628
3629 SMB_VFS_HANDLE_GET_DATA(handle, config,
3630 struct fruit_config_data, return -1);
3631
3632 switch (config->rsrc) {
3633 case FRUIT_RSRC_STREAM:
3634 rc = fruit_unlink_rsrc_stream(handle, smb_fname, force_unlink);
3635 break;
3636
3637 case FRUIT_RSRC_ADFILE:
3638 rc = fruit_unlink_rsrc_adouble(handle, smb_fname, force_unlink);
3639 break;
3640
3641 case FRUIT_RSRC_XATTR:
3642 rc = fruit_unlink_rsrc_xattr(handle, smb_fname, force_unlink);
3643 break;
3644
3645 default:
3646 DBG_ERR("Unsupported rsrc config [%d]\n", config->rsrc);
3647 return -1;
3648 }
3649
3650 return rc;
3651 }
3652
3653 static int fruit_unlink(vfs_handle_struct *handle,
3654 const struct smb_filename *smb_fname)
3655 {
3656 int rc;
3657 struct fruit_config_data *config = NULL;
3658 struct smb_filename *rsrc_smb_fname = NULL;
3659
3660 SMB_VFS_HANDLE_GET_DATA(handle, config,
3661 struct fruit_config_data, return -1);
3662
3663 if (is_afpinfo_stream(smb_fname)) {
3664 return fruit_unlink_meta(handle, smb_fname);
3665 } else if (is_afpresource_stream(smb_fname)) {
3666 return fruit_unlink_rsrc(handle, smb_fname, false);
3667 } if (is_ntfs_stream_smb_fname(smb_fname)) {
3668 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
3669 }
3670
3671 /*
3672 * A request to delete the base file. Because 0 byte resource
3673 * fork streams are not listed by fruit_streaminfo,
3674 * delete_all_streams() can't remove 0 byte resource fork
3675 * streams, so we have to cleanup this here.
3676 */
3677 rsrc_smb_fname = synthetic_smb_fname(talloc_tos(),
3678 smb_fname->base_name,
3679 AFPRESOURCE_STREAM_NAME,
3680 NULL,
3681 smb_fname->flags);
3682 if (rsrc_smb_fname == NULL) {
3683 return -1;
3684 }
3685
3686 rc = fruit_unlink_rsrc(handle, rsrc_smb_fname, true);
3687 if ((rc != 0) && (errno != ENOENT)) {
3688 DBG_ERR("Forced unlink of [%s] failed [%s]\n",
3689 smb_fname_str_dbg(rsrc_smb_fname), strerror(errno));
3690 TALLOC_FREE(rsrc_smb_fname);
3691 return -1;
3692 }
3693 TALLOC_FREE(rsrc_smb_fname);
3694
3695 return SMB_VFS_NEXT_UNLINK(handle, smb_fname);
3696 }
3697
3698 static int fruit_chmod(vfs_handle_struct *handle,
3699 const struct smb_filename *smb_fname,
3700 mode_t mode)
3701 {
3702 int rc = -1;
3703 struct fruit_config_data *config = NULL;
3704 struct smb_filename *smb_fname_adp = NULL;
3705
3706 rc = SMB_VFS_NEXT_CHMOD(handle, smb_fname, mode);
3707 if (rc != 0) {
3708 return rc;
3709 }
3710
3711 SMB_VFS_HANDLE_GET_DATA(handle, config,
3712 struct fruit_config_data, return -1);
3713
3714 if (config->rsrc != FRUIT_RSRC_ADFILE) {
3715 return 0;
3716 }
3717
3718 if (!VALID_STAT(smb_fname->st)) {
3719 return 0;
3720 }
3721
3722 if (!S_ISREG(smb_fname->st.st_ex_mode)) {
3723 return 0;
3724 }
3725
3726 rc = adouble_path(talloc_tos(), smb_fname, &smb_fname_adp);
3727 if (rc != 0) {
3728 return -1;
3729 }
3730
3731 DEBUG(10, ("fruit_chmod: %s\n", smb_fname_adp->base_name));
3732
3733 rc = SMB_VFS_NEXT_CHMOD(handle, smb_fname_adp, mode);
3734 if (errno == ENOENT) {
3735 rc = 0;
3736 }
3737
3738 TALLOC_FREE(smb_fname_adp);
3739 return rc;
3740 }
3741
3742 static int fruit_chown(vfs_handle_struct *handle,
3743 const struct smb_filename *smb_fname,
3744 uid_t uid,
3745 gid_t gid)
3746 {
3747 int rc = -1;
3748 struct fruit_config_data *config = NULL;
3749 struct smb_filename *adp_smb_fname = NULL;
3750
3751 rc = SMB_VFS_NEXT_CHOWN(handle, smb_fname, uid, gid);
3752 if (rc != 0) {
3753 return rc;
3754 }
3755
3756 SMB_VFS_HANDLE_GET_DATA(handle, config,
3757 struct fruit_config_data, return -1);
3758
3759 if (config->rsrc != FRUIT_RSRC_ADFILE) {
3760 return 0;
3761 }
3762
3763 if (!VALID_STAT(smb_fname->st)) {
3764 return 0;
3765 }
3766
3767 if (!S_ISREG(smb_fname->st.st_ex_mode)) {
3768 return 0;
3769 }
3770
3771 rc = adouble_path(talloc_tos(), smb_fname, &adp_smb_fname);
3772 if (rc != 0) {
3773 goto done;
3774 }
3775
3776 DEBUG(10, ("fruit_chown: %s\n", adp_smb_fname->base_name));
3777
3778 rc = SMB_VFS_NEXT_CHOWN(handle, adp_smb_fname, uid, gid);
3779 if (errno == ENOENT) {
3780 rc = 0;
3781 }
3782
3783 done:
3784 TALLOC_FREE(adp_smb_fname);
3785 return rc;
3786 }
3787
3788 static int fruit_rmdir(struct vfs_handle_struct *handle,
3789 const struct smb_filename *smb_fname)
3790 {
3791 DIR *dh = NULL;
3792 struct dirent *de;
3793 struct fruit_config_data *config;
3794
3795 SMB_VFS_HANDLE_GET_DATA(handle, config,
3796 struct fruit_config_data, return -1);
3797
3798 if (config->rsrc != FRUIT_RSRC_ADFILE) {
3799 goto exit_rmdir;
3800 }
3801
3802 /*
3803 * Due to there is no way to change bDeleteVetoFiles variable
3804 * from this module, need to clean up ourselves
3805 */
3806
3807 dh = SMB_VFS_OPENDIR(handle->conn, smb_fname, NULL, 0);
3808 if (dh == NULL) {
3809 goto exit_rmdir;
3810 }
3811
3812 while ((de = SMB_VFS_READDIR(handle->conn, dh, NULL)) != NULL) {
3813 int match;
3814 struct adouble *ad = NULL;
3815 char *p = NULL;
3816 struct smb_filename *ad_smb_fname = NULL;
3817 int ret;
3818
3819 match = strncmp(de->d_name,
3820 ADOUBLE_NAME_PREFIX,
3821 strlen(ADOUBLE_NAME_PREFIX));
3822 if (match != 0) {
3823 continue;
3824 }
3825
3826 p = talloc_asprintf(talloc_tos(), "%s/%s",
3827 smb_fname->base_name, de->d_name);
3828 if (p == NULL) {
3829 DBG_ERR("talloc_asprintf failed\n");
3830 return -1;
3831 }
3832
3833 ad_smb_fname = synthetic_smb_fname(talloc_tos(), p,
3834 NULL, NULL,
3835 smb_fname->flags);
3836 TALLOC_FREE(p);
3837 if (ad_smb_fname == NULL) {
3838 DBG_ERR("synthetic_smb_fname failed\n");
3839 return -1;
3840 }
3841
3842 /*
3843 * Check whether it's a valid AppleDouble file, if
3844 * yes, delete it, ignore it otherwise.
3845 */
3846 ad = ad_get(talloc_tos(), handle, ad_smb_fname, ADOUBLE_RSRC);
3847 if (ad == NULL) {
3848 TALLOC_FREE(ad_smb_fname);
3849 TALLOC_FREE(p);
3850 continue;
3851 }
3852 TALLOC_FREE(ad);
3853
3854 ret = SMB_VFS_NEXT_UNLINK(handle, ad_smb_fname);
3855 if (ret != 0) {
3856 DBG_ERR("Deleting [%s] failed\n",
3857 smb_fname_str_dbg(ad_smb_fname));
3858 }
3859 TALLOC_FREE(ad_smb_fname);
3860 }
3861
3862 exit_rmdir:
3863 if (dh) {
3864 SMB_VFS_CLOSEDIR(handle->conn, dh);
3865 }
3866 return SMB_VFS_NEXT_RMDIR(handle, smb_fname);
3867 }
3868
3869 static ssize_t fruit_pread_meta_stream(vfs_handle_struct *handle,
3870 files_struct *fsp, void *data,
3871 size_t n, off_t offset)
3872 {
3873 ssize_t nread;
3874 int ret;
3875
3876 nread = SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
3877
3878 if (nread == n) {
3879 return nread;
3880 }
3881
3882 DBG_ERR("Removing [%s] after short read [%zd]\n",
3883 fsp_str_dbg(fsp), nread);
3884
3885 ret = SMB_VFS_NEXT_UNLINK(handle, fsp->fsp_name);
3886 if (ret != 0) {
3887 DBG_ERR("Removing [%s] failed\n", fsp_str_dbg(fsp));
3888 return -1;
3889 }
3890
3891 errno = EINVAL;
3892 return -1;
3893 }
3894
3895 static ssize_t fruit_pread_meta_adouble(vfs_handle_struct *handle,
3896 files_struct *fsp, void *data,
3897 size_t n, off_t offset)
3898 {
3899 AfpInfo *ai = NULL;
3900 struct adouble *ad = NULL;
3901 char afpinfo_buf[AFP_INFO_SIZE];
3902 char *p = NULL;
3903 ssize_t nread;
3904
3905 ai = afpinfo_new(talloc_tos());
3906 if (ai == NULL) {
3907 return -1;
3908 }
3909
3910 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_META);
3911 if (ad == NULL) {
3912 nread = -1;
3913 goto fail;
3914 }
3915
3916 p = ad_get_entry(ad, ADEID_FINDERI);
3917 if (p == NULL) {
3918 DBG_ERR("No ADEID_FINDERI for [%s]\n", fsp_str_dbg(fsp));
3919 nread = -1;
3920 goto fail;
3921 }
3922
3923 memcpy(&ai->afpi_FinderInfo[0], p, ADEDLEN_FINDERI);
3924
3925 nread = afpinfo_pack(ai, afpinfo_buf);
3926 if (nread != AFP_INFO_SIZE) {
3927 nread = -1;
3928 goto fail;
3929 }
3930
3931 memcpy(data, afpinfo_buf, n);
3932 nread = n;
3933
3934 fail:
3935 TALLOC_FREE(ai);
3936 return nread;
3937 }
3938
3939 static ssize_t fruit_pread_meta(vfs_handle_struct *handle,
3940 files_struct *fsp, void *data,
3941 size_t n, off_t offset)
3942 {
3943 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
3944 ssize_t nread;
3945 ssize_t to_return;
3946
3947 /*
3948 * OS X has a off-by-1 error in the offset calculation, so we're
3949 * bug compatible here. It won't hurt, as any relevant real
3950 * world read requests from the AFP_AfpInfo stream will be
3951 * offset=0 n=60. offset is ignored anyway, see below.
3952 */
3953 if ((offset < 0) || (offset >= AFP_INFO_SIZE + 1)) {
3954 return 0;
3955 }
3956
3957 /* Yes, macOS always reads from offset 0 */
3958 offset = 0;
3959 to_return = MIN(n, AFP_INFO_SIZE);
3960
3961 switch (fio->config->meta) {
3962 case FRUIT_META_STREAM:
3963 nread = fruit_pread_meta_stream(handle, fsp, data,
3964 to_return, offset);
3965 break;
3966
3967 case FRUIT_META_NETATALK:
3968 nread = fruit_pread_meta_adouble(handle, fsp, data,
3969 to_return, offset);
3970 break;
3971
3972 default:
3973 DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
3974 return -1;
3975 }
3976
3977 return nread;
3978 }
3979
3980 static ssize_t fruit_pread_rsrc_stream(vfs_handle_struct *handle,
3981 files_struct *fsp, void *data,
3982 size_t n, off_t offset)
3983 {
3984 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
3985 }
3986
3987 static ssize_t fruit_pread_rsrc_xattr(vfs_handle_struct *handle,
3988 files_struct *fsp, void *data,
3989 size_t n, off_t offset)
3990 {
3991 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
3992 }
3993
3994 static ssize_t fruit_pread_rsrc_adouble(vfs_handle_struct *handle,
3995 files_struct *fsp, void *data,
3996 size_t n, off_t offset)
3997 {
3998 struct adouble *ad = NULL;
3999 ssize_t nread;
4000
4001 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_RSRC);
4002 if (ad == NULL) {
4003 return -1;
4004 }
4005
4006 nread = SMB_VFS_NEXT_PREAD(handle, fsp, data, n,
4007 offset + ad_getentryoff(ad, ADEID_RFORK));
4008
4009 TALLOC_FREE(ad);
4010 return nread;
4011 }
4012
4013 static ssize_t fruit_pread_rsrc(vfs_handle_struct *handle,
4014 files_struct *fsp, void *data,
4015 size_t n, off_t offset)
4016 {
4017 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4018 ssize_t nread;
4019
4020 switch (fio->config->rsrc) {
4021 case FRUIT_RSRC_STREAM:
4022 nread = fruit_pread_rsrc_stream(handle, fsp, data, n, offset);
4023 break;
4024
4025 case FRUIT_RSRC_ADFILE:
4026 nread = fruit_pread_rsrc_adouble(handle, fsp, data, n, offset);
4027 break;
4028
4029 case FRUIT_RSRC_XATTR:
4030 nread = fruit_pread_rsrc_xattr(handle, fsp, data, n, offset);
4031 break;
4032
4033 default:
4034 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
4035 return -1;
4036 }
4037
4038 return nread;
4039 }
4040
4041 static ssize_t fruit_pread(vfs_handle_struct *handle,
4042 files_struct *fsp, void *data,
4043 size_t n, off_t offset)
4044 {
4045 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4046 ssize_t nread;
4047
4048 DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
4049 fsp_str_dbg(fsp), (intmax_t)offset, n);
4050
4051 if (fio == NULL) {
4052 return SMB_VFS_NEXT_PREAD(handle, fsp, data, n, offset);
4053 }
4054
4055 if (fio->type == ADOUBLE_META) {
4056 nread = fruit_pread_meta(handle, fsp, data, n, offset);
4057 } else {
4058 nread = fruit_pread_rsrc(handle, fsp, data, n, offset);
4059 }
4060
4061 DBG_DEBUG("Path [%s] nread [%zd]\n", fsp_str_dbg(fsp), nread);
4062 return nread;
4063 }
4064
4065 static bool fruit_must_handle_aio_stream(struct fio *fio)
4066 {
4067 if (fio == NULL) {
4068 return false;
4069 };
4070
4071 if ((fio->type == ADOUBLE_META) &&
4072 (fio->config->meta == FRUIT_META_NETATALK))
4073 {
4074 return true;
4075 }
4076
4077 if ((fio->type == ADOUBLE_RSRC) &&
4078 (fio->config->rsrc == FRUIT_RSRC_ADFILE))
4079 {
4080 return true;
4081 }
4082
4083 return false;
4084 }
4085
4086 struct fruit_pread_state {
4087 ssize_t nread;
4088 struct vfs_aio_state vfs_aio_state;
4089 };
4090
4091 static void fruit_pread_done(struct tevent_req *subreq);
4092
4093 static struct tevent_req *fruit_pread_send(
4094 struct vfs_handle_struct *handle,
4095 TALLOC_CTX *mem_ctx,
4096 struct tevent_context *ev,
4097 struct files_struct *fsp,
4098 void *data,
4099 size_t n, off_t offset)
4100 {
4101 struct tevent_req *req = NULL;
4102 struct tevent_req *subreq = NULL;
4103 struct fruit_pread_state *state = NULL;
4104 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4105
4106 req = tevent_req_create(mem_ctx, &state,
4107 struct fruit_pread_state);
4108 if (req == NULL) {
4109 return NULL;
4110 }
4111
4112 if (fruit_must_handle_aio_stream(fio)) {
4113 state->nread = SMB_VFS_PREAD(fsp, data, n, offset);
4114 if (state->nread != n) {
4115 if (state->nread != -1) {
4116 errno = EIO;
4117 }
4118 tevent_req_error(req, errno);
4119 return tevent_req_post(req, ev);
4120 }
4121 tevent_req_done(req);
4122 return tevent_req_post(req, ev);
4123 }
4124
4125 subreq = SMB_VFS_NEXT_PREAD_SEND(state, ev, handle, fsp,
4126 data, n, offset);
4127 if (tevent_req_nomem(req, subreq)) {
4128 return tevent_req_post(req, ev);
4129 }
4130 tevent_req_set_callback(subreq, fruit_pread_done, req);
4131 return req;
4132 }
4133
4134 static void fruit_pread_done(struct tevent_req *subreq)
4135 {
4136 struct tevent_req *req = tevent_req_callback_data(
4137 subreq, struct tevent_req);
4138 struct fruit_pread_state *state = tevent_req_data(
4139 req, struct fruit_pread_state);
4140
4141 state->nread = SMB_VFS_PREAD_RECV(subreq, &state->vfs_aio_state);
4142 TALLOC_FREE(subreq);
4143
4144 if (tevent_req_error(req, state->vfs_aio_state.error)) {
4145 return;
4146 }
4147 tevent_req_done(req);
4148 }
4149
4150 static ssize_t fruit_pread_recv(struct tevent_req *req,
4151 struct vfs_aio_state *vfs_aio_state)
4152 {
4153 struct fruit_pread_state *state = tevent_req_data(
4154 req, struct fruit_pread_state);
4155
4156 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
4157 return -1;
4158 }
4159
4160 *vfs_aio_state = state->vfs_aio_state;
4161 return state->nread;
4162 }
4163
4164 static ssize_t fruit_pwrite_meta_stream(vfs_handle_struct *handle,
4165 files_struct *fsp, const void *data,
4166 size_t n, off_t offset)
4167 {
4168 AfpInfo *ai = NULL;
4169 size_t nwritten;
4170 bool ok;
4171
4172 ai = afpinfo_unpack(talloc_tos(), data);
4173 if (ai == NULL) {
4174 return -1;
4175 }
4176
4177 nwritten = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
4178 if (nwritten != n) {
4179 return -1;
4180 }
4181
4182 if (!ai_empty_finderinfo(ai)) {
4183 return n;
4184 }
4185
4186 ok = set_delete_on_close(
4187 fsp,
4188 true,
4189 handle->conn->session_info->security_token,
4190 handle->conn->session_info->unix_token);
4191 if (!ok) {
4192 DBG_ERR("set_delete_on_close on [%s] failed\n",
4193 fsp_str_dbg(fsp));
4194 return -1;
4195 }
4196
4197 return n;
4198 }
4199
4200 static ssize_t fruit_pwrite_meta_netatalk(vfs_handle_struct *handle,
4201 files_struct *fsp, const void *data,
4202 size_t n, off_t offset)
4203 {
4204 struct adouble *ad = NULL;
4205 AfpInfo *ai = NULL;
4206 char *p = NULL;
4207 int ret;
4208 bool ok;
4209
4210 ai = afpinfo_unpack(talloc_tos(), data);
4211 if (ai == NULL) {
4212 return -1;
4213 }
4214
4215 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_META);
4216 if (ad == NULL) {
4217 ad = ad_init(talloc_tos(), handle, ADOUBLE_META);
4218 if (ad == NULL) {
4219 return -1;
4220 }
4221 }
4222 p = ad_get_entry(ad, ADEID_FINDERI);
4223 if (p == NULL) {
4224 DBG_ERR("No ADEID_FINDERI for [%s]\n", fsp_str_dbg(fsp));
4225 TALLOC_FREE(ad);
4226 return -1;
4227 }
4228
4229 memcpy(p, &ai->afpi_FinderInfo[0], ADEDLEN_FINDERI);
4230
4231 ret = ad_fset(ad, fsp);
4232 if (ret != 0) {
4233 DBG_ERR("ad_pwrite [%s] failed\n", fsp_str_dbg(fsp));
4234 TALLOC_FREE(ad);
4235 return -1;
4236 }
4237
4238 TALLOC_FREE(ad);
4239
4240 if (!ai_empty_finderinfo(ai)) {
4241 return n;
4242 }
4243
4244 ok = set_delete_on_close(
4245 fsp,
4246 true,
4247 handle->conn->session_info->security_token,
4248 handle->conn->session_info->unix_token);
4249 if (!ok) {
4250 DBG_ERR("set_delete_on_close on [%s] failed\n",
4251 fsp_str_dbg(fsp));
4252 return -1;
4253 }
4254
4255 return n;
4256 }
4257
4258 static ssize_t fruit_pwrite_meta(vfs_handle_struct *handle,
4259 files_struct *fsp, const void *data,
4260 size_t n, off_t offset)
4261 {
4262 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4263 ssize_t nwritten;
4264
4265 /*
4266 * Writing an all 0 blob to the metadata stream
4267 * results in the stream being removed on a macOS
4268 * server. This ensures we behave the same and it
4269 * verified by the "delete AFP_AfpInfo by writing all
4270 * 0" test.
4271 */
4272 if (n != AFP_INFO_SIZE || offset != 0) {
4273 DBG_ERR("unexpected offset=%jd or size=%jd\n",
4274 (intmax_t)offset, (intmax_t)n);
4275 return -1;
4276 }
4277
4278 switch (fio->config->meta) {
4279 case FRUIT_META_STREAM:
4280 nwritten = fruit_pwrite_meta_stream(handle, fsp, data,
4281 n, offset);
4282 break;
4283
4284 case FRUIT_META_NETATALK:
4285 nwritten = fruit_pwrite_meta_netatalk(handle, fsp, data,
4286 n, offset);
4287 break;
4288
4289 default:
4290 DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
4291 return -1;
4292 }
4293
4294 return nwritten;
4295 }
4296
4297 static ssize_t fruit_pwrite_rsrc_stream(vfs_handle_struct *handle,
4298 files_struct *fsp, const void *data,
4299 size_t n, off_t offset)
4300 {
4301 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
4302 }
4303
4304 static ssize_t fruit_pwrite_rsrc_xattr(vfs_handle_struct *handle,
4305 files_struct *fsp, const void *data,
4306 size_t n, off_t offset)
4307 {
4308 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
4309 }
4310
4311 static ssize_t fruit_pwrite_rsrc_adouble(vfs_handle_struct *handle,
4312 files_struct *fsp, const void *data,
4313 size_t n, off_t offset)
4314 {
4315 struct adouble *ad = NULL;
4316 ssize_t nwritten;
4317 int ret;
4318
4319 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_RSRC);
4320 if (ad == NULL) {
4321 DBG_ERR("ad_get [%s] failed\n", fsp_str_dbg(fsp));
4322 return -1;
4323 }
4324
4325 nwritten = SMB_VFS_NEXT_PWRITE(handle, fsp, data, n,
4326 offset + ad_getentryoff(ad, ADEID_RFORK));
4327 if (nwritten != n) {
4328 DBG_ERR("Short write on [%s] [%zd/%zd]\n",
4329 fsp_str_dbg(fsp), nwritten, n);
4330 TALLOC_FREE(ad);
4331 return -1;
4332 }
4333
4334 if ((n + offset) > ad_getentrylen(ad, ADEID_RFORK)) {
4335 ad_setentrylen(ad, ADEID_RFORK, n + offset);
4336 ret = ad_fset(ad, fsp);
4337 if (ret != 0) {
4338 DBG_ERR("ad_pwrite [%s] failed\n", fsp_str_dbg(fsp));
4339 TALLOC_FREE(ad);
4340 return -1;
4341 }
4342 }
4343
4344 TALLOC_FREE(ad);
4345 return n;
4346 }
4347
4348 static ssize_t fruit_pwrite_rsrc(vfs_handle_struct *handle,
4349 files_struct *fsp, const void *data,
4350 size_t n, off_t offset)
4351 {
4352 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4353 ssize_t nwritten;
4354
4355 switch (fio->config->rsrc) {
4356 case FRUIT_RSRC_STREAM:
4357 nwritten = fruit_pwrite_rsrc_stream(handle, fsp, data, n, offset);
4358 break;
4359
4360 case FRUIT_RSRC_ADFILE:
4361 nwritten = fruit_pwrite_rsrc_adouble(handle, fsp, data, n, offset);
4362 break;
4363
4364 case FRUIT_RSRC_XATTR:
4365 nwritten = fruit_pwrite_rsrc_xattr(handle, fsp, data, n, offset);
4366 break;
4367
4368 default:
4369 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
4370 return -1;
4371 }
4372
4373 return nwritten;
4374 }
4375
4376 static ssize_t fruit_pwrite(vfs_handle_struct *handle,
4377 files_struct *fsp, const void *data,
4378 size_t n, off_t offset)
4379 {
4380 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4381 ssize_t nwritten;
4382
4383 DBG_DEBUG("Path [%s] offset=%"PRIdMAX", size=%zd\n",
4384 fsp_str_dbg(fsp), (intmax_t)offset, n);
4385
4386 if (fio == NULL) {
4387 return SMB_VFS_NEXT_PWRITE(handle, fsp, data, n, offset);
4388 }
4389
4390 if (fio->type == ADOUBLE_META) {
4391 nwritten = fruit_pwrite_meta(handle, fsp, data, n, offset);
4392 } else {
4393 nwritten = fruit_pwrite_rsrc(handle, fsp, data, n, offset);
4394 }
4395
4396 DBG_DEBUG("Path [%s] nwritten=%zd\n", fsp_str_dbg(fsp), nwritten);
4397 return nwritten;
4398 }
4399
4400 struct fruit_pwrite_state {
4401 ssize_t nwritten;
4402 struct vfs_aio_state vfs_aio_state;
4403 };
4404
4405 static void fruit_pwrite_done(struct tevent_req *subreq);
4406
4407 static struct tevent_req *fruit_pwrite_send(
4408 struct vfs_handle_struct *handle,
4409 TALLOC_CTX *mem_ctx,
4410 struct tevent_context *ev,
4411 struct files_struct *fsp,
4412 const void *data,
4413 size_t n, off_t offset)
4414 {
4415 struct tevent_req *req = NULL;
4416 struct tevent_req *subreq = NULL;
4417 struct fruit_pwrite_state *state = NULL;
4418 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4419
4420 req = tevent_req_create(mem_ctx, &state,
4421 struct fruit_pwrite_state);
4422 if (req == NULL) {
4423 return NULL;
4424 }
4425
4426 if (fruit_must_handle_aio_stream(fio)) {
4427 state->nwritten = SMB_VFS_PWRITE(fsp, data, n, offset);
4428 if (state->nwritten != n) {
4429 if (state->nwritten != -1) {
4430 errno = EIO;
4431 }
4432 tevent_req_error(req, errno);
4433 return tevent_req_post(req, ev);
4434 }
4435 tevent_req_done(req);
4436 return tevent_req_post(req, ev);
4437 }
4438
4439 subreq = SMB_VFS_NEXT_PWRITE_SEND(state, ev, handle, fsp,
4440 data, n, offset);
4441 if (tevent_req_nomem(req, subreq)) {
4442 return tevent_req_post(req, ev);
4443 }
4444 tevent_req_set_callback(subreq, fruit_pwrite_done, req);
4445 return req;
4446 }
4447
4448 static void fruit_pwrite_done(struct tevent_req *subreq)
4449 {
4450 struct tevent_req *req = tevent_req_callback_data(
4451 subreq, struct tevent_req);
4452 struct fruit_pwrite_state *state = tevent_req_data(
4453 req, struct fruit_pwrite_state);
4454
4455 state->nwritten = SMB_VFS_PWRITE_RECV(subreq, &state->vfs_aio_state);
4456 TALLOC_FREE(subreq);
4457
4458 if (tevent_req_error(req, state->vfs_aio_state.error)) {
4459 return;
4460 }
4461 tevent_req_done(req);
4462 }
4463
4464 static ssize_t fruit_pwrite_recv(struct tevent_req *req,
4465 struct vfs_aio_state *vfs_aio_state)
4466 {
4467 struct fruit_pwrite_state *state = tevent_req_data(
4468 req, struct fruit_pwrite_state);
4469
4470 if (tevent_req_is_unix_error(req, &vfs_aio_state->error)) {
4471 return -1;
4472 }
4473
4474 *vfs_aio_state = state->vfs_aio_state;
4475 return state->nwritten;
4476 }
4477
4478 /**
4479 * Helper to stat/lstat the base file of an smb_fname.
4480 */
4481 static int fruit_stat_base(vfs_handle_struct *handle,
4482 struct smb_filename *smb_fname,
4483 bool follow_links)
4484 {
4485 char *tmp_stream_name;
4486 int rc;
4487
4488 tmp_stream_name = smb_fname->stream_name;
4489 smb_fname->stream_name = NULL;
4490 if (follow_links) {
4491 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
4492 } else {
4493 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
4494 }
4495 smb_fname->stream_name = tmp_stream_name;
4496 return rc;
4497 }
4498
4499 static int fruit_stat_meta_stream(vfs_handle_struct *handle,
4500 struct smb_filename *smb_fname,
4501 bool follow_links)
4502 {
4503 int ret;
4504
4505 if (follow_links) {
4506 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
4507 } else {
4508 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
4509 }
4510
4511 return ret;
4512 }
4513
4514 static int fruit_stat_meta_netatalk(vfs_handle_struct *handle,
4515 struct smb_filename *smb_fname,
4516 bool follow_links)
4517 {
4518 struct adouble *ad = NULL;
4519
4520 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
4521 if (ad == NULL) {
4522 DBG_INFO("fruit_stat_meta %s: %s\n",
4523 smb_fname_str_dbg(smb_fname), strerror(errno));
4524 errno = ENOENT;
4525 return -1;
4526 }
4527 TALLOC_FREE(ad);
4528
4529 /* Populate the stat struct with info from the base file. */
4530 if (fruit_stat_base(handle, smb_fname, follow_links) == -1) {
4531 return -1;
4532 }
4533 smb_fname->st.st_ex_size = AFP_INFO_SIZE;
4534 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
4535 smb_fname->stream_name);
4536 return 0;
4537 }
4538
4539 static int fruit_stat_meta(vfs_handle_struct *handle,
4540 struct smb_filename *smb_fname,
4541 bool follow_links)
4542 {
4543 struct fruit_config_data *config = NULL;
4544 int ret;
4545
4546 SMB_VFS_HANDLE_GET_DATA(handle, config,
4547 struct fruit_config_data, return -1);
4548
4549 switch (config->meta) {
4550 case FRUIT_META_STREAM:
4551 ret = fruit_stat_meta_stream(handle, smb_fname, follow_links);
4552 break;
4553
4554 case FRUIT_META_NETATALK:
4555 ret = fruit_stat_meta_netatalk(handle, smb_fname, follow_links);
4556 break;
4557
4558 default:
4559 DBG_ERR("Unexpected meta config [%d]\n", config->meta);
4560 return -1;
4561 }
4562
4563 return ret;
4564 }
4565
4566 static int fruit_stat_rsrc_netatalk(vfs_handle_struct *handle,
4567 struct smb_filename *smb_fname,
4568 bool follow_links)
4569 {
4570 struct adouble *ad = NULL;
4571 int ret;
4572
4573 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_RSRC);
4574 if (ad == NULL) {
4575 errno = ENOENT;
4576 return -1;
4577 }
4578
4579 /* Populate the stat struct with info from the base file. */
4580 ret = fruit_stat_base(handle, smb_fname, follow_links);
4581 if (ret != 0) {
4582 TALLOC_FREE(ad);
4583 return -1;
4584 }
4585
4586 smb_fname->st.st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
4587 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
4588 smb_fname->stream_name);
4589 TALLOC_FREE(ad);
4590 return 0;
4591 }
4592
4593 static int fruit_stat_rsrc_stream(vfs_handle_struct *handle,
4594 struct smb_filename *smb_fname,
4595 bool follow_links)
4596 {
4597 int ret;
4598
4599 if (follow_links) {
4600 ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
4601 } else {
4602 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
4603 }
4604
4605 return ret;
4606 }
4607
4608 static int fruit_stat_rsrc_xattr(vfs_handle_struct *handle,
4609 struct smb_filename *smb_fname,
4610 bool follow_links)
4611 {
4612 #ifdef HAVE_ATTROPEN
4613 int ret;
4614 int fd = -1;
4615
4616 /* Populate the stat struct with info from the base file. */
4617 ret = fruit_stat_base(handle, smb_fname, follow_links);
4618 if (ret != 0) {
4619 return -1;
4620 }
4621
4622 fd = attropen(smb_fname->base_name,
4623 AFPRESOURCE_EA_NETATALK,
4624 O_RDONLY);
4625 if (fd == -1) {
4626 return 0;
4627 }
4628
4629 ret = sys_fstat(fd, &smb_fname->st, false);
4630 if (ret != 0) {
4631 close(fd);
4632 DBG_ERR("fstat [%s:%s] failed\n", smb_fname->base_name,
4633 AFPRESOURCE_EA_NETATALK);
4634 return -1;
4635 }
4636 close(fd);
4637 fd = -1;
4638
4639 smb_fname->st.st_ex_ino = fruit_inode(&smb_fname->st,
4640 smb_fname->stream_name);
4641
4642 return ret;
4643
4644 #else
4645 errno = ENOSYS;
4646 return -1;
4647 #endif
4648 }
4649
4650 static int fruit_stat_rsrc(vfs_handle_struct *handle,
4651 struct smb_filename *smb_fname,
4652 bool follow_links)
4653 {
4654 struct fruit_config_data *config = NULL;
4655 int ret;
4656
4657 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
4658
4659 SMB_VFS_HANDLE_GET_DATA(handle, config,
4660 struct fruit_config_data, return -1);
4661
4662 switch (config->rsrc) {
4663 case FRUIT_RSRC_STREAM:
4664 ret = fruit_stat_rsrc_stream(handle, smb_fname, follow_links);
4665 break;
4666
4667 case FRUIT_RSRC_XATTR:
4668 ret = fruit_stat_rsrc_xattr(handle, smb_fname, follow_links);
4669 break;
4670
4671 case FRUIT_RSRC_ADFILE:
4672 ret = fruit_stat_rsrc_netatalk(handle, smb_fname, follow_links);
4673 break;
4674
4675 default:
4676 DBG_ERR("Unexpected rsrc config [%d]\n", config->rsrc);
4677 return -1;
4678 }
4679
4680 return ret;
4681 }
4682
4683 static int fruit_stat(vfs_handle_struct *handle,
4684 struct smb_filename *smb_fname)
4685 {
4686 int rc = -1;
4687
4688 DEBUG(10, ("fruit_stat called for %s\n",
4689 smb_fname_str_dbg(smb_fname)));
4690
4691 if (!is_ntfs_stream_smb_fname(smb_fname)
4692 || is_ntfs_default_stream_smb_fname(smb_fname)) {
4693 rc = SMB_VFS_NEXT_STAT(handle, smb_fname);
4694 if (rc == 0) {
4695 update_btime(handle, smb_fname);
4696 }
4697 return rc;
4698 }
4699
4700 /*
4701 * Note if lp_posix_paths() is true, we can never
4702 * get here as is_ntfs_stream_smb_fname() is
4703 * always false. So we never need worry about
4704 * not following links here.
4705 */
4706
4707 if (is_afpinfo_stream(smb_fname)) {
4708 rc = fruit_stat_meta(handle, smb_fname, true);
4709 } else if (is_afpresource_stream(smb_fname)) {
4710 rc = fruit_stat_rsrc(handle, smb_fname, true);
4711 } else {
4712 return SMB_VFS_NEXT_STAT(handle, smb_fname);
4713 }
4714
4715 if (rc == 0) {
4716 update_btime(handle, smb_fname);
4717 smb_fname->st.st_ex_mode &= ~S_IFMT;
4718 smb_fname->st.st_ex_mode |= S_IFREG;
4719 smb_fname->st.st_ex_blocks =
4720 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
4721 }
4722 return rc;
4723 }
4724
4725 static int fruit_lstat(vfs_handle_struct *handle,
4726 struct smb_filename *smb_fname)
4727 {
4728 int rc = -1;
4729
4730 DEBUG(10, ("fruit_lstat called for %s\n",
4731 smb_fname_str_dbg(smb_fname)));
4732
4733 if (!is_ntfs_stream_smb_fname(smb_fname)
4734 || is_ntfs_default_stream_smb_fname(smb_fname)) {
4735 rc = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
4736 if (rc == 0) {
4737 update_btime(handle, smb_fname);
4738 }
4739 return rc;
4740 }
4741
4742 if (is_afpinfo_stream(smb_fname)) {
4743 rc = fruit_stat_meta(handle, smb_fname, false);
4744 } else if (is_afpresource_stream(smb_fname)) {
4745 rc = fruit_stat_rsrc(handle, smb_fname, false);
4746 } else {
4747 return SMB_VFS_NEXT_LSTAT(handle, smb_fname);
4748 }
4749
4750 if (rc == 0) {
4751 update_btime(handle, smb_fname);
4752 smb_fname->st.st_ex_mode &= ~S_IFMT;
4753 smb_fname->st.st_ex_mode |= S_IFREG;
4754 smb_fname->st.st_ex_blocks =
4755 smb_fname->st.st_ex_size / STAT_ST_BLOCKSIZE + 1;
4756 }
4757 return rc;
4758 }
4759
4760 static int fruit_fstat_meta_stream(vfs_handle_struct *handle,
4761 files_struct *fsp,
4762 SMB_STRUCT_STAT *sbuf)
4763 {
4764 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
4765 }
4766
4767 static int fruit_fstat_meta_netatalk(vfs_handle_struct *handle,
4768 files_struct *fsp,
4769 SMB_STRUCT_STAT *sbuf)
4770 {
4771 int ret;
4772
4773 ret = fruit_stat_base(handle, fsp->base_fsp->fsp_name, false);
4774 if (ret != 0) {
4775 return -1;
4776 }
4777
4778 *sbuf = fsp->base_fsp->fsp_name->st;
4779 sbuf->st_ex_size = AFP_INFO_SIZE;
4780 sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
4781
4782 return 0;
4783 }
4784
4785 static int fruit_fstat_meta(vfs_handle_struct *handle,
4786 files_struct *fsp,
4787 SMB_STRUCT_STAT *sbuf,
4788 struct fio *fio)
4789 {
4790 int ret;
4791
4792 DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
4793
4794 switch (fio->config->meta) {
4795 case FRUIT_META_STREAM:
4796 ret = fruit_fstat_meta_stream(handle, fsp, sbuf);
4797 break;
4798
4799 case FRUIT_META_NETATALK:
4800 ret = fruit_fstat_meta_netatalk(handle, fsp, sbuf);
4801 break;
4802
4803 default:
4804 DBG_ERR("Unexpected meta config [%d]\n", fio->config->meta);
4805 return -1;
4806 }
4807
4808 DBG_DEBUG("Path [%s] ret [%d]\n", fsp_str_dbg(fsp), ret);
4809 return ret;
4810 }
4811
4812 static int fruit_fstat_rsrc_xattr(vfs_handle_struct *handle,
4813 files_struct *fsp,
4814 SMB_STRUCT_STAT *sbuf)
4815 {
4816 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
4817 }
4818
4819 static int fruit_fstat_rsrc_stream(vfs_handle_struct *handle,
4820 files_struct *fsp,
4821 SMB_STRUCT_STAT *sbuf)
4822 {
4823 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
4824 }
4825
4826 static int fruit_fstat_rsrc_adouble(vfs_handle_struct *handle,
4827 files_struct *fsp,
4828 SMB_STRUCT_STAT *sbuf)
4829 {
4830 struct adouble *ad = NULL;
4831 int ret;
4832
4833 /* Populate the stat struct with info from the base file. */
4834 ret = fruit_stat_base(handle, fsp->base_fsp->fsp_name, false);
4835 if (ret == -1) {
4836 return -1;
4837 }
4838
4839 ad = ad_get(talloc_tos(), handle,
4840 fsp->base_fsp->fsp_name,
4841 ADOUBLE_RSRC);
4842 if (ad == NULL) {
4843 DBG_ERR("ad_get [%s] failed [%s]\n",
4844 fsp_str_dbg(fsp), strerror(errno));
4845 return -1;
4846 }
4847
4848 *sbuf = fsp->base_fsp->fsp_name->st;
4849 sbuf->st_ex_size = ad_getentrylen(ad, ADEID_RFORK);
4850 sbuf->st_ex_ino = fruit_inode(sbuf, fsp->fsp_name->stream_name);
4851
4852 TALLOC_FREE(ad);
4853 return 0;
4854 }
4855
4856 static int fruit_fstat_rsrc(vfs_handle_struct *handle, files_struct *fsp,
4857 SMB_STRUCT_STAT *sbuf, struct fio *fio)
4858 {
4859 int ret;
4860
4861 switch (fio->config->rsrc) {
4862 case FRUIT_RSRC_STREAM:
4863 ret = fruit_fstat_rsrc_stream(handle, fsp, sbuf);
4864 break;
4865
4866 case FRUIT_RSRC_ADFILE:
4867 ret = fruit_fstat_rsrc_adouble(handle, fsp, sbuf);
4868 break;
4869
4870 case FRUIT_RSRC_XATTR:
4871 ret = fruit_fstat_rsrc_xattr(handle, fsp, sbuf);
4872 break;
4873
4874 default:
4875 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
4876 return -1;
4877 }
4878
4879 return ret;
4880 }
4881
4882 static int fruit_fstat(vfs_handle_struct *handle, files_struct *fsp,
4883 SMB_STRUCT_STAT *sbuf)
4884 {
4885 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
4886 int rc;
4887
4888 if (fio == NULL) {
4889 return SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
4890 }
4891
4892 DBG_DEBUG("Path [%s]\n", fsp_str_dbg(fsp));
4893
4894 if (fio->type == ADOUBLE_META) {
4895 rc = fruit_fstat_meta(handle, fsp, sbuf, fio);
4896 } else {
4897 rc = fruit_fstat_rsrc(handle, fsp, sbuf, fio);
4898 }
4899
4900 if (rc == 0) {
4901 sbuf->st_ex_mode &= ~S_IFMT;
4902 sbuf->st_ex_mode |= S_IFREG;
4903 sbuf->st_ex_blocks = sbuf->st_ex_size / STAT_ST_BLOCKSIZE + 1;
4904 }
4905
4906 DBG_DEBUG("Path [%s] rc [%d] size [%"PRIdMAX"]\n",
4907 fsp_str_dbg(fsp), rc, (intmax_t)sbuf->st_ex_size);
4908 return rc;
4909 }
4910
4911 static NTSTATUS delete_invalid_meta_stream(
4912 vfs_handle_struct *handle,
4913 const struct smb_filename *smb_fname,
4914 TALLOC_CTX *mem_ctx,
4915 unsigned int *pnum_streams,
4916 struct stream_struct **pstreams)
4917 {
4918 struct smb_filename *sname = NULL;
4919 int ret;
4920 bool ok;
4921
4922 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams, AFPINFO_STREAM);
4923 if (!ok) {
4924 return NT_STATUS_INTERNAL_ERROR;
4925 }
4926
4927 sname = synthetic_smb_fname(talloc_tos(),
4928 smb_fname->base_name,
4929 AFPINFO_STREAM_NAME,
4930 NULL, 0);
4931 if (sname == NULL) {
4932 return NT_STATUS_NO_MEMORY;
4933 }
4934
4935 ret = SMB_VFS_NEXT_UNLINK(handle, sname);
4936 TALLOC_FREE(sname);
4937 if (ret != 0) {
4938 DBG_ERR("Removing [%s] failed\n", smb_fname_str_dbg(sname));
4939 return map_nt_error_from_unix(errno);
4940 }
4941
4942 return NT_STATUS_OK;
4943 }
4944
4945 static NTSTATUS fruit_streaminfo_meta_stream(
4946 vfs_handle_struct *handle,
4947 struct files_struct *fsp,
4948 const struct smb_filename *smb_fname,
4949 TALLOC_CTX *mem_ctx,
4950 unsigned int *pnum_streams,
4951 struct stream_struct **pstreams)
4952 {
4953 struct stream_struct *stream = *pstreams;
4954 unsigned int num_streams = *pnum_streams;
4955 struct smb_filename *sname = NULL;
4956 char *full_name = NULL;
4957 uint32_t name_hash;
4958 struct share_mode_lock *lck = NULL;
4959 struct file_id id = {0};
4960 bool delete_on_close_set;
4961 int i;
4962 int ret;
4963 NTSTATUS status;
4964 bool ok;
4965
4966 for (i = 0; i < num_streams; i++) {
4967 if (strequal_m(stream[i].name, AFPINFO_STREAM)) {
4968 break;
4969 }
4970 }
4971
4972 if (i == num_streams) {
4973 return NT_STATUS_OK;
4974 }
4975
4976 if (stream[i].size != AFP_INFO_SIZE) {
4977 DBG_ERR("Removing invalid AFPINFO_STREAM size [%jd] from [%s]\n",
4978 (intmax_t)stream[i].size, smb_fname_str_dbg(smb_fname));
4979
4980 return delete_invalid_meta_stream(handle, smb_fname, mem_ctx,
4981 pnum_streams, pstreams);
4982 }
4983
4984 /*
4985 * Now check if there's a delete-on-close pending on the stream. If so,
4986 * hide the stream. This behaviour was verified against a macOS 10.12
4987 * SMB server.
4988 */
4989
4990 sname = synthetic_smb_fname(talloc_tos(),
4991 smb_fname->base_name,
4992 AFPINFO_STREAM_NAME,
4993 NULL, 0);
4994 if (sname == NULL) {
4995 status = NT_STATUS_NO_MEMORY;
4996 goto out;
4997 }
4998
4999 ret = SMB_VFS_NEXT_STAT(handle, sname);
5000 if (ret != 0) {
5001 status = map_nt_error_from_unix(errno);
5002 goto out;
5003 }
5004
5005 id = SMB_VFS_NEXT_FILE_ID_CREATE(handle, &sname->st);
5006
5007 lck = get_existing_share_mode_lock(talloc_tos(), id);
5008 if (lck == NULL) {
5009 status = NT_STATUS_OK;
5010 goto out;
5011 }
5012
5013 full_name = talloc_asprintf(talloc_tos(),
5014 "%s%s",
5015 sname->base_name,
5016 AFPINFO_STREAM);
5017 if (full_name == NULL) {
5018 status = NT_STATUS_NO_MEMORY;
5019 goto out;
5020 }
5021
5022 status = file_name_hash(handle->conn, full_name, &name_hash);
5023 if (!NT_STATUS_IS_OK(status)) {
5024 goto out;
5025 }
5026
5027 delete_on_close_set = is_delete_on_close_set(lck, name_hash);
5028 if (delete_on_close_set) {
5029 ok = del_fruit_stream(mem_ctx,
5030 pnum_streams,
5031 pstreams,
5032 AFPINFO_STREAM);
5033 if (!ok) {
5034 status = NT_STATUS_INTERNAL_ERROR;
5035 goto out;
5036 }
5037 }
5038
5039 status = NT_STATUS_OK;
5040
5041 out:
5042 TALLOC_FREE(sname);
5043 TALLOC_FREE(lck);
5044 TALLOC_FREE(full_name);
5045 return status;
5046 }
5047
5048 static NTSTATUS fruit_streaminfo_meta_netatalk(
5049 vfs_handle_struct *handle,
5050 struct files_struct *fsp,
5051 const struct smb_filename *smb_fname,
5052 TALLOC_CTX *mem_ctx,
5053 unsigned int *pnum_streams,
5054 struct stream_struct **pstreams)
5055 {
5056 struct stream_struct *stream = *pstreams;
5057 unsigned int num_streams = *pnum_streams;
5058 struct adouble *ad = NULL;
5059 bool is_fi_empty;
5060 int i;
5061 bool ok;
5062
5063 /* Remove the Netatalk xattr from the list */
5064 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
5065 ":" NETATALK_META_XATTR ":$DATA");
5066 if (!ok) {
5067 return NT_STATUS_NO_MEMORY;
5068 }
5069
5070 /*
5071 * Check if there's a AFPINFO_STREAM from the VFS streams
5072 * backend and if yes, remove it from the list
5073 */
5074 for (i = 0; i < num_streams; i++) {
5075 if (strequal_m(stream[i].name, AFPINFO_STREAM)) {
5076 break;
5077 }
5078 }
5079
5080 if (i < num_streams) {
5081 DBG_WARNING("Unexpected AFPINFO_STREAM on [%s]\n",
5082 smb_fname_str_dbg(smb_fname));
5083
5084 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
5085 AFPINFO_STREAM);
5086 if (!ok) {
5087 return NT_STATUS_INTERNAL_ERROR;
5088 }
5089 }
5090
5091 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
5092 if (ad == NULL) {
5093 return NT_STATUS_OK;
5094 }
5095
5096 is_fi_empty = ad_empty_finderinfo(ad);
5097 TALLOC_FREE(ad);
5098
5099 if (is_fi_empty) {
5100 return NT_STATUS_OK;
5101 }
5102
5103 ok = add_fruit_stream(mem_ctx, pnum_streams, pstreams,
5104 AFPINFO_STREAM_NAME, AFP_INFO_SIZE,
5105 smb_roundup(handle->conn, AFP_INFO_SIZE));
5106 if (!ok) {
5107 return NT_STATUS_NO_MEMORY;
5108 }
5109
5110 return NT_STATUS_OK;
5111 }
5112
5113 static NTSTATUS fruit_streaminfo_meta(vfs_handle_struct *handle,
5114 struct files_struct *fsp,
5115 const struct smb_filename *smb_fname,
5116 TALLOC_CTX *mem_ctx,
5117 unsigned int *pnum_streams,
5118 struct stream_struct **pstreams)
5119 {
5120 struct fruit_config_data *config = NULL;
5121 NTSTATUS status;
5122
5123 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
5124 return NT_STATUS_INTERNAL_ERROR);
5125
5126 switch (config->meta) {
5127 case FRUIT_META_NETATALK:
5128 status = fruit_streaminfo_meta_netatalk(handle, fsp, smb_fname,
5129 mem_ctx, pnum_streams,
5130 pstreams);
5131 break;
5132
5133 case FRUIT_META_STREAM:
5134 status = fruit_streaminfo_meta_stream(handle, fsp, smb_fname,
5135 mem_ctx, pnum_streams,
5136 pstreams);
5137 break;
5138
5139 default:
5140 return NT_STATUS_INTERNAL_ERROR;
5141 }
5142
5143 return status;
5144 }
5145
5146 static NTSTATUS fruit_streaminfo_rsrc_stream(
5147 vfs_handle_struct *handle,
5148 struct files_struct *fsp,
5149 const struct smb_filename *smb_fname,
5150 TALLOC_CTX *mem_ctx,
5151 unsigned int *pnum_streams,
5152 struct stream_struct **pstreams)
5153 {
5154 bool ok;
5155
5156 ok = filter_empty_rsrc_stream(pnum_streams, pstreams);
5157 if (!ok) {
5158 DBG_ERR("Filtering resource stream failed\n");
5159 return NT_STATUS_INTERNAL_ERROR;
5160 }
5161 return NT_STATUS_OK;
5162 }
5163
5164 static NTSTATUS fruit_streaminfo_rsrc_xattr(
5165 vfs_handle_struct *handle,
5166 struct files_struct *fsp,
5167 const struct smb_filename *smb_fname,
5168 TALLOC_CTX *mem_ctx,
5169 unsigned int *pnum_streams,
5170 struct stream_struct **pstreams)
5171 {
5172 bool ok;
5173
5174 ok = filter_empty_rsrc_stream(pnum_streams, pstreams);
5175 if (!ok) {
5176 DBG_ERR("Filtering resource stream failed\n");
5177 return NT_STATUS_INTERNAL_ERROR;
5178 }
5179 return NT_STATUS_OK;
5180 }
5181
5182 static NTSTATUS fruit_streaminfo_rsrc_adouble(
5183 vfs_handle_struct *handle,
5184 struct files_struct *fsp,
5185 const struct smb_filename *smb_fname,
5186 TALLOC_CTX *mem_ctx,
5187 unsigned int *pnum_streams,
5188 struct stream_struct **pstreams)
5189 {
5190 struct stream_struct *stream = *pstreams;
5191 unsigned int num_streams = *pnum_streams;
5192 struct adouble *ad = NULL;
5193 bool ok;
5194 size_t rlen;
5195 int i;
5196
5197 /*
5198 * Check if there's a AFPRESOURCE_STREAM from the VFS streams backend
5199 * and if yes, remove it from the list
5200 */
5201 for (i = 0; i < num_streams; i++) {
5202 if (strequal_m(stream[i].name, AFPRESOURCE_STREAM)) {
5203 break;
5204 }
5205 }
5206
5207 if (i < num_streams) {
5208 DBG_WARNING("Unexpected AFPRESOURCE_STREAM on [%s]\n",
5209 smb_fname_str_dbg(smb_fname));
5210
5211 ok = del_fruit_stream(mem_ctx, pnum_streams, pstreams,
5212 AFPRESOURCE_STREAM);
5213 if (!ok) {
5214 return NT_STATUS_INTERNAL_ERROR;
5215 }
5216 }
5217
5218 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_RSRC);
5219 if (ad == NULL) {
5220 return NT_STATUS_OK;
5221 }
5222
5223 rlen = ad_getentrylen(ad, ADEID_RFORK);
5224 TALLOC_FREE(ad);
5225
5226 if (rlen == 0) {
5227 return NT_STATUS_OK;
5228 }
5229
5230 ok = add_fruit_stream(mem_ctx, pnum_streams, pstreams,
5231 AFPRESOURCE_STREAM_NAME, rlen,
5232 smb_roundup(handle->conn, rlen));
5233 if (!ok) {
5234 return NT_STATUS_NO_MEMORY;
5235 }
5236
5237 return NT_STATUS_OK;
5238 }
5239
5240 static NTSTATUS fruit_streaminfo_rsrc(vfs_handle_struct *handle,
5241 struct files_struct *fsp,
5242 const struct smb_filename *smb_fname,
5243 TALLOC_CTX *mem_ctx,
5244 unsigned int *pnum_streams,
5245 struct stream_struct **pstreams)
5246 {
5247 struct fruit_config_data *config = NULL;
5248 NTSTATUS status;
5249
5250 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
5251 return NT_STATUS_INTERNAL_ERROR);
5252
5253 switch (config->rsrc) {
5254 case FRUIT_RSRC_STREAM:
5255 status = fruit_streaminfo_rsrc_stream(handle, fsp, smb_fname,
5256 mem_ctx, pnum_streams,
5257 pstreams);
5258 break;
5259
5260 case FRUIT_RSRC_XATTR:
5261 status = fruit_streaminfo_rsrc_xattr(handle, fsp, smb_fname,
5262 mem_ctx, pnum_streams,
5263 pstreams);
5264 break;
5265
5266 case FRUIT_RSRC_ADFILE:
5267 status = fruit_streaminfo_rsrc_adouble(handle, fsp, smb_fname,
5268 mem_ctx, pnum_streams,
5269 pstreams);
5270 break;
5271
5272 default:
5273 return NT_STATUS_INTERNAL_ERROR;
5274 }
5275
5276 return status;
5277 }
5278
5279 static NTSTATUS fruit_streaminfo(vfs_handle_struct *handle,
5280 struct files_struct *fsp,
5281 const struct smb_filename *smb_fname,
5282 TALLOC_CTX *mem_ctx,
5283 unsigned int *pnum_streams,
5284 struct stream_struct **pstreams)
5285 {
5286 struct fruit_config_data *config = NULL;
5287 NTSTATUS status;
5288
5289 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
5290 return NT_STATUS_UNSUCCESSFUL);
5291
5292 DBG_DEBUG("Path [%s]\n", smb_fname_str_dbg(smb_fname));
5293
5294 status = SMB_VFS_NEXT_STREAMINFO(handle, fsp, smb_fname, mem_ctx,
5295 pnum_streams, pstreams);
5296 if (!NT_STATUS_IS_OK(status)) {
5297 return status;
5298 }
5299
5300 status = fruit_streaminfo_meta(handle, fsp, smb_fname,
5301 mem_ctx, pnum_streams, pstreams);
5302 if (!NT_STATUS_IS_OK(status)) {
5303 return status;
5304 }
5305
5306 status = fruit_streaminfo_rsrc(handle, fsp, smb_fname,
5307 mem_ctx, pnum_streams, pstreams);
5308 if (!NT_STATUS_IS_OK(status)) {
5309 return status;
5310 }
5311
5312 return NT_STATUS_OK;
5313 }
5314
5315 static int fruit_ntimes(vfs_handle_struct *handle,
5316 const struct smb_filename *smb_fname,
5317 struct smb_file_time *ft)
5318 {
5319 int rc = 0;
5320 struct adouble *ad = NULL;
5321 struct fruit_config_data *config = NULL;
5322
5323 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
5324 return -1);
5325
5326 if ((config->meta != FRUIT_META_NETATALK) ||
5327 null_timespec(ft->create_time))
5328 {
5329 return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
5330 }
5331
5332 DEBUG(10,("set btime for %s to %s\n", smb_fname_str_dbg(smb_fname),
5333 time_to_asc(convert_timespec_to_time_t(ft->create_time))));
5334
5335 ad = ad_get(talloc_tos(), handle, smb_fname, ADOUBLE_META);
5336 if (ad == NULL) {
5337 goto exit;
5338 }
5339
5340 ad_setdate(ad, AD_DATE_CREATE | AD_DATE_UNIX,
5341 convert_time_t_to_uint32_t(ft->create_time.tv_sec));
5342
5343 rc = ad_set(ad, smb_fname);
5344
5345 exit:
5346
5347 TALLOC_FREE(ad);
5348 if (rc != 0) {
5349 DEBUG(1, ("fruit_ntimes: %s\n", smb_fname_str_dbg(smb_fname)));
5350 return -1;
5351 }
5352 return SMB_VFS_NEXT_NTIMES(handle, smb_fname, ft);
5353 }
5354
5355 static int fruit_fallocate(struct vfs_handle_struct *handle,
5356 struct files_struct *fsp,
5357 uint32_t mode,
5358 off_t offset,
5359 off_t len)
5360 {
5361 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
5362
5363 if (fio == NULL) {
5364 return SMB_VFS_NEXT_FALLOCATE(handle, fsp, mode, offset, len);
5365 }
5366
5367 /* Let the pwrite code path handle it. */
5368 errno = ENOSYS;
5369 return -1;
5370 }
5371
5372 static int fruit_ftruncate_rsrc_xattr(struct vfs_handle_struct *handle,
5373 struct files_struct *fsp,
5374 off_t offset)
5375 {
5376 if (offset == 0) {
5377 return SMB_VFS_FREMOVEXATTR(fsp, AFPRESOURCE_EA_NETATALK);
5378 }
5379
5380 #ifdef HAVE_ATTROPEN
5381 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
5382 #endif
5383 return 0;
5384 }
5385
5386 static int fruit_ftruncate_rsrc_adouble(struct vfs_handle_struct *handle,
5387 struct files_struct *fsp,
5388 off_t offset)
5389 {
5390 int rc;
5391 struct adouble *ad = NULL;
5392 off_t ad_off;
5393
5394 ad = ad_fget(talloc_tos(), handle, fsp, ADOUBLE_RSRC);
5395 if (ad == NULL) {
5396 DBG_DEBUG("ad_get [%s] failed [%s]\n",
5397 fsp_str_dbg(fsp), strerror(errno));
5398 return -1;
5399 }
5400
5401 ad_off = ad_getentryoff(ad, ADEID_RFORK);
5402
5403 rc = ftruncate(fsp->fh->fd, offset + ad_off);
5404 if (rc != 0) {
5405 TALLOC_FREE(ad);
5406 return -1;
5407 }
5408
5409 ad_setentrylen(ad, ADEID_RFORK, offset);
5410
5411 rc = ad_fset(ad, fsp);
5412 if (rc != 0) {
5413 DBG_ERR("ad_fset [%s] failed [%s]\n",
5414 fsp_str_dbg(fsp), strerror(errno));
5415 TALLOC_FREE(ad);
5416 return -1;
5417 }
5418
5419 TALLOC_FREE(ad);
5420 return 0;
5421 }
5422
5423 static int fruit_ftruncate_rsrc_stream(struct vfs_handle_struct *handle,
5424 struct files_struct *fsp,
5425 off_t offset)
5426 {
5427 if (offset == 0) {
5428 return SMB_VFS_NEXT_UNLINK(handle, fsp->fsp_name);
5429 }
5430
5431 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
5432 }
5433
5434 static int fruit_ftruncate_rsrc(struct vfs_handle_struct *handle,
5435 struct files_struct *fsp,
5436 off_t offset)
5437 {
5438 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
5439 int ret;
5440
5441 switch (fio->config->rsrc) {
5442 case FRUIT_RSRC_XATTR:
5443 ret = fruit_ftruncate_rsrc_xattr(handle, fsp, offset);
5444 break;
5445
5446 case FRUIT_RSRC_ADFILE:
5447 ret = fruit_ftruncate_rsrc_adouble(handle, fsp, offset);
5448 break;
5449
5450 case FRUIT_RSRC_STREAM:
5451 ret = fruit_ftruncate_rsrc_stream(handle, fsp, offset);
5452 break;
5453
5454 default:
5455 DBG_ERR("Unexpected rsrc config [%d]\n", fio->config->rsrc);
5456 return -1;
5457 }
5458
5459
5460 return ret;
5461 }
5462
5463 static int fruit_ftruncate_meta(struct vfs_handle_struct *handle,
5464 struct files_struct *fsp,
5465 off_t offset)
5466 {
5467 if (offset > 60) {
5468 DBG_WARNING("ftruncate %s to %jd",
5469 fsp_str_dbg(fsp), (intmax_t)offset);
5470 /* OS X returns NT_STATUS_ALLOTTED_SPACE_EXCEEDED */
5471 errno = EOVERFLOW;
5472 return -1;
5473 }
5474
5475 /* OS X returns success but does nothing */
5476 DBG_INFO("ignoring ftruncate %s to %jd\n",
5477 fsp_str_dbg(fsp), (intmax_t)offset);
5478 return 0;
5479 }
5480
5481 static int fruit_ftruncate(struct vfs_handle_struct *handle,
5482 struct files_struct *fsp,
5483 off_t offset)
5484 {
5485 struct fio *fio = (struct fio *)VFS_FETCH_FSP_EXTENSION(handle, fsp);
5486 int ret;
5487
5488 DBG_DEBUG("Path [%s] offset [%"PRIdMAX"]\n", fsp_str_dbg(fsp),
5489 (intmax_t)offset);
5490
5491 if (fio == NULL) {
5492 return SMB_VFS_NEXT_FTRUNCATE(handle, fsp, offset);
5493 }
5494
5495 if (fio->type == ADOUBLE_META) {
5496 ret = fruit_ftruncate_meta(handle, fsp, offset);
5497 } else {
5498 ret = fruit_ftruncate_rsrc(handle, fsp, offset);
5499 }
5500
5501 DBG_DEBUG("Path [%s] result [%d]\n", fsp_str_dbg(fsp), ret);
5502 return ret;
5503 }
5504
5505 static NTSTATUS fruit_create_file(vfs_handle_struct *handle,
5506 struct smb_request *req,
5507 uint16_t root_dir_fid,
5508 struct smb_filename *smb_fname,
5509 uint32_t access_mask,
5510 uint32_t share_access,
5511 uint32_t create_disposition,
5512 uint32_t create_options,
5513 uint32_t file_attributes,
5514 uint32_t oplock_request,
5515 struct smb2_lease *lease,
5516 uint64_t allocation_size,
5517 uint32_t private_flags,
5518 struct security_descriptor *sd,
5519 struct ea_list *ea_list,
5520 files_struct **result,
5521 int *pinfo,
5522 const struct smb2_create_blobs *in_context_blobs,
5523 struct smb2_create_blobs *out_context_blobs)
5524 {
5525 NTSTATUS status;
5526 struct fruit_config_data *config = NULL;
5527 files_struct *fsp = NULL;
5528
5529 status = check_aapl(handle, req, in_context_blobs, out_context_blobs);
5530 if (!NT_STATUS_IS_OK(status)) {
5531 goto fail;
5532 }
5533
5534 SMB_VFS_HANDLE_GET_DATA(handle, config, struct fruit_config_data,
5535 return NT_STATUS_UNSUCCESSFUL);
5536
5537 status = SMB_VFS_NEXT_CREATE_FILE(
5538 handle, req, root_dir_fid, smb_fname,
5539 access_mask, share_access,
5540 create_disposition, create_options,
5541 file_attributes, oplock_request,
5542 lease,
5543 allocation_size, private_flags,
5544 sd, ea_list, result,
5545 pinfo, in_context_blobs, out_context_blobs);
5546 if (!NT_STATUS_IS_OK(status)) {
5547 return status;
5548 }
5549
5550 fsp = *result;
5551
5552 if (global_fruit_config.nego_aapl) {
5553 if (config->posix_rename && fsp->is_directory) {
5554 /*
5555 * Enable POSIX directory rename behaviour
5556 */
5557 fsp->posix_flags |= FSP_POSIX_FLAGS_RENAME;
5558 }
5559 }
5560
5561 /*
5562 * If this is a plain open for existing files, opening an 0
5563 * byte size resource fork MUST fail with
5564 * NT_STATUS_OBJECT_NAME_NOT_FOUND.
5565 *
5566 * Cf the vfs_fruit torture tests in test_rfork_create().
5567 */
5568 if (is_afpresource_stream(fsp->fsp_name) &&
5569 create_disposition == FILE_OPEN)
5570 {
5571 if (fsp->fsp_name->st.st_ex_size == 0) {
5572 status = NT_STATUS_OBJECT_NAME_NOT_FOUND;
5573 goto fail;
5574 }
5575 }
5576
5577 if (is_ntfs_stream_smb_fname(smb_fname)
5578 || fsp->is_directory) {
5579 return status;
5580 }
5581
5582 if (config->locking == FRUIT_LOCKING_NETATALK) {
5583 status = fruit_check_access(
5584 handle, *result,
5585 access_mask,
5586 map_share_mode_to_deny_mode(share_access, 0));
5587 if (!NT_STATUS_IS_OK(status)) {
5588 goto fail;
5589 }
5590 }
5591
5592 return status;
5593
5594 fail:
5595 DEBUG(10, ("fruit_create_file: %s\n", nt_errstr(status)));
5596
5597 if (fsp) {
5598 close_file(req, fsp, ERROR_CLOSE);
5599 *result = fsp = NULL;
5600 }
5601
5602 return status;
5603 }
5604
5605 static NTSTATUS fruit_readdir_attr(struct vfs_handle_struct *handle,
5606 const struct smb_filename *fname,
5607 TALLOC_CTX *mem_ctx,
5608 struct readdir_attr_data **pattr_data)
5609 {
5610 struct fruit_config_data *config = NULL;
5611 struct readdir_attr_data *attr_data;
5612 NTSTATUS status;
5613
5614 SMB_VFS_HANDLE_GET_DATA(handle, config,
5615 struct fruit_config_data,
5616 return NT_STATUS_UNSUCCESSFUL);
5617
5618 if (!global_fruit_config.nego_aapl) {
5619 return SMB_VFS_NEXT_READDIR_ATTR(handle, fname, mem_ctx, pattr_data);
5620 }
5621
5622 DEBUG(10, ("fruit_readdir_attr %s\n", fname->base_name));
5623
5624 *pattr_data = talloc_zero(mem_ctx, struct readdir_attr_data);
5625 if (*pattr_data == NULL) {
5626 return NT_STATUS_UNSUCCESSFUL;
5627 }
5628 attr_data = *pattr_data;
5629 attr_data->type = RDATTR_AAPL;
5630
5631 /*
5632 * Mac metadata: compressed FinderInfo, resource fork length
5633 * and creation date
5634 */
5635 status = readdir_attr_macmeta(handle, fname, attr_data);
5636 if (!NT_STATUS_IS_OK(status)) {
5637 /*
5638 * Error handling is tricky: if we return failure from
5639 * this function, the corresponding directory entry
5640 * will to be passed to the client, so we really just
5641 * want to error out on fatal errors.
5642 */
5643 if (!NT_STATUS_EQUAL(status, NT_STATUS_ACCESS_DENIED)) {
5644 goto fail;
5645 }
5646 }
5647
5648 /*
5649 * UNIX mode
5650 */
5651 if (config->unix_info_enabled) {
5652 attr_data->attr_data.aapl.unix_mode = fname->st.st_ex_mode;
5653 }
5654
5655 /*
5656 * max_access
5657 */
5658 if (!config->readdir_attr_max_access) {
5659 attr_data->attr_data.aapl.max_access = FILE_GENERIC_ALL;
5660 } else {
5661 status = smbd_calculate_access_mask(
5662 handle->conn,
5663 fname,
5664 false,
5665 SEC_FLAG_MAXIMUM_ALLOWED,
5666 &attr_data->attr_data.aapl.max_access);
5667 if (!NT_STATUS_IS_OK(status)) {
5668 goto fail;
5669 }
5670 }
5671
5672 return NT_STATUS_OK;
5673
5674 fail:
5675 DEBUG(1, ("fruit_readdir_attr %s, error: %s\n",
5676 fname->base_name, nt_errstr(status)));
5677 TALLOC_FREE(*pattr_data);
5678 return status;
5679 }
5680
5681 static NTSTATUS fruit_fget_nt_acl(vfs_handle_struct *handle,
5682 files_struct *fsp,
5683 uint32_t security_info,
5684 TALLOC_CTX *mem_ctx,
5685 struct security_descriptor **ppdesc)
5686 {
5687 NTSTATUS status;
5688 struct security_ace ace;
5689 struct dom_sid sid;
5690 struct fruit_config_data *config;
5691
5692 SMB_VFS_HANDLE_GET_DATA(handle, config,
5693 struct fruit_config_data,
5694 return NT_STATUS_UNSUCCESSFUL);
5695
5696 status = SMB_VFS_NEXT_FGET_NT_ACL(handle, fsp, security_info,
5697 mem_ctx, ppdesc);
5698 if (!NT_STATUS_IS_OK(status)) {
5699 return status;
5700 }
5701
5702 /*
5703 * Add MS NFS style ACEs with uid, gid and mode
5704 */
5705 if (!global_fruit_config.nego_aapl) {
5706 return NT_STATUS_OK;
5707 }
5708 if (!config->unix_info_enabled) {
5709 return NT_STATUS_OK;
5710 }
5711
5712 /* MS NFS style mode */
5713 sid_compose(&sid, &global_sid_Unix_NFS_Mode, fsp->fsp_name->st.st_ex_mode);
5714 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
5715 status = security_descriptor_dacl_add(*ppdesc, &ace);
5716 if (!NT_STATUS_IS_OK(status)) {
5717 DEBUG(1,("failed to add MS NFS style ACE\n"));
5718 return status;
5719 }
5720
5721 /* MS NFS style uid */
5722 sid_compose(&sid, &global_sid_Unix_NFS_Users, fsp->fsp_name->st.st_ex_uid);
5723 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
5724 status = security_descriptor_dacl_add(*ppdesc, &ace);
5725 if (!NT_STATUS_IS_OK(status)) {
5726 DEBUG(1,("failed to add MS NFS style ACE\n"));
5727 return status;
5728 }
5729
5730 /* MS NFS style gid */
5731 sid_compose(&sid, &global_sid_Unix_NFS_Groups, fsp->fsp_name->st.st_ex_gid);
5732 init_sec_ace(&ace, &sid, SEC_ACE_TYPE_ACCESS_DENIED, 0, 0);
5733 status = security_descriptor_dacl_add(*ppdesc, &ace);
5734 if (!NT_STATUS_IS_OK(status)) {
5735 DEBUG(1,("failed to add MS NFS style ACE\n"));
5736 return status;
5737 }
5738
5739 return NT_STATUS_OK;
5740 }
5741
5742 static NTSTATUS fruit_fset_nt_acl(vfs_handle_struct *handle,
5743 files_struct *fsp,
5744 uint32_t security_info_sent,
5745 const struct security_descriptor *psd)
5746 {
5747 NTSTATUS status;
5748 bool do_chmod;
5749 mode_t ms_nfs_mode = 0;
5750 int result;
5751
5752 DBG_DEBUG("fruit_fset_nt_acl: %s\n", fsp_str_dbg(fsp));
5753
5754 status = check_ms_nfs(handle, fsp, psd, &ms_nfs_mode, &do_chmod);
5755 if (!NT_STATUS_IS_OK(status)) {
5756 DEBUG(1, ("fruit_fset_nt_acl: check_ms_nfs failed%s\n", fsp_str_dbg(fsp)));
5757 return status;
5758 }
5759
5760 status = SMB_VFS_NEXT_FSET_NT_ACL(handle, fsp, security_info_sent, psd);
5761 if (!NT_STATUS_IS_OK(status)) {
5762 DEBUG(1, ("fruit_fset_nt_acl: SMB_VFS_NEXT_FSET_NT_ACL failed%s\n", fsp_str_dbg(fsp)));
5763 return status;
5764 }
5765
5766 if (do_chmod) {
5767 if (fsp->fh->fd != -1) {
5768 result = SMB_VFS_FCHMOD(fsp, ms_nfs_mode);
5769 } else {
5770 result = SMB_VFS_CHMOD(fsp->conn,
5771 fsp->fsp_name,
5772 ms_nfs_mode);
5773 }
5774
5775 if (result != 0) {
5776 DEBUG(1, ("chmod: %s, result: %d, %04o error %s\n", fsp_str_dbg(fsp),
5777 result, (unsigned)ms_nfs_mode,
5778 strerror(errno)));
5779 status = map_nt_error_from_unix(errno);
5780 return status;
5781 }
5782 }
5783
5784 return NT_STATUS_OK;
5785 }
5786
5787 static struct vfs_offload_ctx *fruit_offload_ctx;
5788
5789 struct fruit_offload_read_state {
5790 struct vfs_handle_struct *handle;
5791 struct tevent_context *ev;
5792 files_struct *fsp;
5793 uint32_t fsctl;
5794 DATA_BLOB token;
5795 };
5796
5797 static void fruit_offload_read_done(struct tevent_req *subreq);
5798
5799 static struct tevent_req *fruit_offload_read_send(
5800 TALLOC_CTX *mem_ctx,
5801 struct tevent_context *ev,
5802 struct vfs_handle_struct *handle,
5803 files_struct *fsp,
5804 uint32_t fsctl,
5805 uint32_t ttl,
5806 off_t offset,
5807 size_t to_copy)
5808 {
5809 struct tevent_req *req = NULL;
5810 struct tevent_req *subreq = NULL;
5811 struct fruit_offload_read_state *state = NULL;
5812
5813 req = tevent_req_create(mem_ctx, &state,
5814 struct fruit_offload_read_state);
5815 if (req == NULL) {
5816 return NULL;
5817 }
5818 *state = (struct fruit_offload_read_state) {
5819 .handle = handle,
5820 .ev = ev,
5821 .fsp = fsp,
5822 .fsctl = fsctl,
5823 };
5824
5825 subreq = SMB_VFS_NEXT_OFFLOAD_READ_SEND(mem_ctx, ev, handle, fsp,
5826 fsctl, ttl, offset, to_copy);
5827 if (tevent_req_nomem(subreq, req)) {
5828 return tevent_req_post(req, ev);
5829 }
5830 tevent_req_set_callback(subreq, fruit_offload_read_done, req);
5831 return req;
5832 }
5833
5834 static void fruit_offload_read_done(struct tevent_req *subreq)
5835 {
5836 struct tevent_req *req = tevent_req_callback_data(
5837 subreq, struct tevent_req);
5838 struct fruit_offload_read_state *state = tevent_req_data(
5839 req, struct fruit_offload_read_state);
5840 NTSTATUS status;
5841
5842 status = SMB_VFS_NEXT_OFFLOAD_READ_RECV(subreq,
5843 state->handle,
5844 state,
5845 &state->token);
5846 TALLOC_FREE(subreq);
5847 if (tevent_req_nterror(req, status)) {
5848 return;
5849 }
5850
5851 if (state->fsctl != FSCTL_SRV_REQUEST_RESUME_KEY) {
5852 tevent_req_done(req);
5853 return;
5854 }
5855
5856 status = vfs_offload_token_ctx_init(state->fsp->conn->sconn->client,
5857 &fruit_offload_ctx);
5858 if (tevent_req_nterror(req, status)) {
5859 return;
5860 }
5861
5862 status = vfs_offload_token_db_store_fsp(fruit_offload_ctx,
5863 state->fsp,
5864 &state->token);
5865 if (tevent_req_nterror(req, status)) {
5866 return;
5867 }
5868
5869 tevent_req_done(req);
5870 return;
5871 }
5872
5873 static NTSTATUS fruit_offload_read_recv(struct tevent_req *req,
5874 struct vfs_handle_struct *handle,
5875 TALLOC_CTX *mem_ctx,
5876 DATA_BLOB *token)
5877 {
5878 struct fruit_offload_read_state *state = tevent_req_data(
5879 req, struct fruit_offload_read_state);
5880 NTSTATUS status;
5881
5882 if (tevent_req_is_nterror(req, &status)) {
5883 tevent_req_received(req);
5884 return status;
5885 }
5886
5887 token->length = state->token.length;
5888 token->data = talloc_move(mem_ctx, &state->token.data);
5889
5890 tevent_req_received(req);
5891 return NT_STATUS_OK;
5892 }
5893
5894 struct fruit_offload_write_state {
5895 struct vfs_handle_struct *handle;
5896 off_t copied;
5897 struct files_struct *src_fsp;
5898 struct files_struct *dst_fsp;
5899 bool is_copyfile;
5900 };
5901
5902 static void fruit_offload_write_done(struct tevent_req *subreq);
5903 static struct tevent_req *fruit_offload_write_send(struct vfs_handle_struct *handle,
5904 TALLOC_CTX *mem_ctx,
5905 struct tevent_context *ev,
5906 uint32_t fsctl,
5907 DATA_BLOB *token,
5908 off_t transfer_offset,
5909 struct files_struct *dest_fsp,
5910 off_t dest_off,
5911 off_t num)
5912 {
5913 struct tevent_req *req, *subreq;
5914 struct fruit_offload_write_state *state;
5915 NTSTATUS status;
5916 struct fruit_config_data *config;
5917 off_t src_off = transfer_offset;
5918 files_struct *src_fsp = NULL;
5919 off_t to_copy = num;
5920 bool copyfile_enabled = false;
5921
5922 DEBUG(10,("soff: %ju, doff: %ju, len: %ju\n",
5923 (uintmax_t)src_off, (uintmax_t)dest_off, (uintmax_t)num));
5924
5925 SMB_VFS_HANDLE_GET_DATA(handle, config,
5926 struct fruit_config_data,
5927 return NULL);
5928
5929 req = tevent_req_create(mem_ctx, &state,
5930 struct fruit_offload_write_state);
5931 if (req == NULL) {
5932 return NULL;
5933 }
5934 state->handle = handle;
5935 state->dst_fsp = dest_fsp;
5936
5937 switch (fsctl) {
5938 case FSCTL_SRV_COPYCHUNK:
5939 case FSCTL_SRV_COPYCHUNK_WRITE:
5940 copyfile_enabled = config->copyfile_enabled;
5941 break;
5942 default:
5943 break;
5944 }
5945
5946 /*
5947 * Check if this a OS X copyfile style copychunk request with
5948 * a requested chunk count of 0 that was translated to a
5949 * offload_write_send VFS call overloading the parameters src_off
5950 * = dest_off = num = 0.
5951 */
5952 if (copyfile_enabled && num == 0 && src_off == 0 && dest_off == 0) {
5953 status = vfs_offload_token_db_fetch_fsp(
5954 fruit_offload_ctx, token, &src_fsp);
5955 if (tevent_req_nterror(req, status)) {
5956 return tevent_req_post(req, ev);
5957 }
5958 state->src_fsp = src_fsp;
5959
5960 status = vfs_stat_fsp(src_fsp);
5961 if (tevent_req_nterror(req, status)) {
5962 return tevent_req_post(req, ev);
5963 }
5964
5965 to_copy = src_fsp->fsp_name->st.st_ex_size;
5966 state->is_copyfile = true;
5967 }
5968
5969 subreq = SMB_VFS_NEXT_OFFLOAD_WRITE_SEND(handle,
5970 mem_ctx,
5971 ev,
5972 fsctl,
5973 token,
5974 transfer_offset,
5975 dest_fsp,
5976 dest_off,
5977 to_copy);
5978 if (tevent_req_nomem(subreq, req)) {
5979 return tevent_req_post(req, ev);
5980 }
5981
5982 tevent_req_set_callback(subreq, fruit_offload_write_done, req);
5983 return req;
5984 }
5985
5986 static void fruit_offload_write_done(struct tevent_req *subreq)
5987 {
5988 struct tevent_req *req = tevent_req_callback_data(
5989 subreq, struct tevent_req);
5990 struct fruit_offload_write_state *state = tevent_req_data(
5991 req, struct fruit_offload_write_state);
5992 NTSTATUS status;
5993 unsigned int num_streams = 0;
5994 struct stream_struct *streams = NULL;
5995 unsigned int i;
5996 struct smb_filename *src_fname_tmp = NULL;
5997 struct smb_filename *dst_fname_tmp = NULL;
5998
5999 status = SMB_VFS_NEXT_OFFLOAD_WRITE_RECV(state->handle,
6000 subreq,
6001 &state->copied);
6002 TALLOC_FREE(subreq);
6003 if (tevent_req_nterror(req, status)) {
6004 return;
6005 }
6006
6007 if (!state->is_copyfile) {
6008 tevent_req_done(req);
6009 return;
6010 }
6011
6012 /*
6013 * Now copy all remaining streams. We know the share supports
6014 * streams, because we're in vfs_fruit. We don't do this async
6015 * because streams are few and small.
6016 */
6017 status = vfs_streaminfo(state->handle->conn, state->src_fsp,
6018 state->src_fsp->fsp_name,
6019 req, &num_streams, &streams);
6020 if (tevent_req_nterror(req, status)) {
6021 return;
6022 }
6023
6024 if (num_streams == 1) {
6025 /* There is always one stream, ::$DATA. */
6026 tevent_req_done(req);
6027 return;
6028 }
6029
6030 for (i = 0; i < num_streams; i++) {
6031 DEBUG(10, ("%s: stream: '%s'/%zu\n",
6032 __func__, streams[i].name, (size_t)streams[i].size));
6033
6034 src_fname_tmp = synthetic_smb_fname(
6035 req,
6036 state->src_fsp->fsp_name->base_name,
6037 streams[i].name,
6038 NULL,
6039 state->src_fsp->fsp_name->flags);
6040 if (tevent_req_nomem(src_fname_tmp, req)) {
6041 return;
6042 }
6043
6044 if (is_ntfs_default_stream_smb_fname(src_fname_tmp)) {
6045 TALLOC_FREE(src_fname_tmp);
6046 continue;
6047 }
6048
6049 dst_fname_tmp = synthetic_smb_fname(
6050 req,
6051 state->dst_fsp->fsp_name->base_name,
6052 streams[i].name,
6053 NULL,
6054 state->dst_fsp->fsp_name->flags);
6055 if (tevent_req_nomem(dst_fname_tmp, req)) {
6056 TALLOC_FREE(src_fname_tmp);
6057 return;
6058 }
6059
6060 status = copy_file(req,
6061 state->handle->conn,
6062 src_fname_tmp,
6063 dst_fname_tmp,
6064 OPENX_FILE_CREATE_IF_NOT_EXIST,
6065 0, false);
6066 if (!NT_STATUS_IS_OK(status)) {
6067 DEBUG(1, ("%s: copy %s to %s failed: %s\n", __func__,
6068 smb_fname_str_dbg(src_fname_tmp),
6069 smb_fname_str_dbg(dst_fname_tmp),
6070 nt_errstr(status)));
6071 TALLOC_FREE(src_fname_tmp);
6072 TALLOC_FREE(dst_fname_tmp);
6073 tevent_req_nterror(req, status);
6074 return;
6075 }
6076
6077 TALLOC_FREE(src_fname_tmp);
6078 TALLOC_FREE(dst_fname_tmp);
6079 }
6080
6081 TALLOC_FREE(streams);
6082 TALLOC_FREE(src_fname_tmp);
6083 TALLOC_FREE(dst_fname_tmp);
6084 tevent_req_done(req);
6085 }
6086
6087 static NTSTATUS fruit_offload_write_recv(struct vfs_handle_struct *handle,
6088 struct tevent_req *req,
6089 off_t *copied)
6090 {
6091 struct fruit_offload_write_state *state = tevent_req_data(
6092 req, struct fruit_offload_write_state);
6093 NTSTATUS status;
6094
6095 if (tevent_req_is_nterror(req, &status)) {
6096 DEBUG(1, ("server side copy chunk failed: %s\n",
6097 nt_errstr(status)));
6098 *copied = 0;
6099 tevent_req_received(req);
6100 return status;
6101 }
6102
6103 *copied = state->copied;
6104 tevent_req_received(req);
6105
6106 return NT_STATUS_OK;
6107 }
6108
6109 static char *fruit_get_bandsize_line(char **lines, int numlines)
6110 {
6111 static regex_t re;
6112 static bool re_initialized = false;
6113 int i;
6114 int ret;
6115
6116 if (!re_initialized) {
6117 ret = regcomp(&re, "^[[:blank:]]*<key>band-size</key>$", 0);
6118 if (ret != 0) {
6119 return NULL;
6120 }
6121 re_initialized = true;
6122 }
6123
6124 for (i = 0; i < numlines; i++) {
6125 regmatch_t matches[1];
6126
6127 ret = regexec(&re, lines[i], 1, matches, 0);
6128 if (ret == 0) {
6129 /*
6130 * Check if the match was on the last line, sa we want
6131 * the subsequent line.
6132 */
6133 if (i + 1 == numlines) {
6134 return NULL;
6135 }
6136 return lines[i + 1];
6137 }
6138 if (ret != REG_NOMATCH) {
6139 return NULL;
6140 }
6141 }
6142
6143 return NULL;
6144 }
6145
6146 static bool fruit_get_bandsize_from_line(char *line, size_t *_band_size)
6147 {
6148 static regex_t re;
6149 static bool re_initialized = false;
6150 regmatch_t matches[2];
6151 uint64_t band_size;
6152 int ret;
6153 bool ok;
6154
6155 if (!re_initialized) {
6156 ret = regcomp(&re,
6157 "^[[:blank:]]*"
6158 "<integer>\\([[:digit:]]*\\)</integer>$",
6159 0);
6160 if (ret != 0) {
6161 return false;
6162 }
6163 re_initialized = true;
6164 }
6165
6166 ret = regexec(&re, line, 2, matches, 0);
6167 if (ret != 0) {
6168 DBG_ERR("regex failed [%s]\n", line);
6169 return false;
6170 }
6171
6172 line[matches[1].rm_eo] = '\0';
6173
6174 ok = conv_str_u64(&line[matches[1].rm_so], &band_size);
6175 if (!ok) {
6176 return false;
6177 }
6178 *_band_size = (size_t)band_size;
6179 return true;
6180 }
6181
6182 /*
6183 * This reads and parses an Info.plist from a TM sparsebundle looking for the
6184 * "band-size" key and value.
6185 */
6186 static bool fruit_get_bandsize(vfs_handle_struct *handle,
6187 const char *dir,
6188 size_t *band_size)
6189 {
6190 #define INFO_PLIST_MAX_SIZE 64*1024
6191 char *plist = NULL;
6192 struct smb_filename *smb_fname = NULL;
6193 files_struct *fsp = NULL;
6194 uint8_t *file_data = NULL;
6195 char **lines = NULL;
6196 char *band_size_line = NULL;
6197 size_t plist_file_size;
6198 ssize_t nread;
6199 int numlines;
6200 int ret;
6201 bool ok = false;
6202 NTSTATUS status;
6203
6204 plist = talloc_asprintf(talloc_tos(),
6205 "%s/%s/Info.plist",
6206 handle->conn->connectpath,
6207 dir);
6208 if (plist == NULL) {
6209 ok = false;
6210 goto out;
6211 }
6212
6213 smb_fname = synthetic_smb_fname(talloc_tos(), plist, NULL, NULL, 0);
6214 if (smb_fname == NULL) {
6215 ok = false;
6216 goto out;
6217 }
6218
6219 ret = SMB_VFS_NEXT_LSTAT(handle, smb_fname);
6220 if (ret != 0) {
6221 DBG_INFO("Ignoring Sparsebundle without Info.plist [%s]\n", dir);
6222 ok = true;
6223 goto out;
6224 }
6225
6226 plist_file_size = smb_fname->st.st_ex_size;
6227
6228 if (plist_file_size > INFO_PLIST_MAX_SIZE) {
6229 DBG_INFO("%s is too large, ignoring\n", plist);
6230 ok = true;
6231 goto out;
6232 }
6233
6234 status = SMB_VFS_NEXT_CREATE_FILE(
6235 handle, /* conn */
6236 NULL, /* req */
6237 0, /* root_dir_fid */
6238 smb_fname, /* fname */
6239 FILE_GENERIC_READ, /* access_mask */
6240 FILE_SHARE_READ | FILE_SHARE_WRITE, /* share_access */
6241 FILE_OPEN, /* create_disposition */
6242 0, /* create_options */
6243 0, /* file_attributes */
6244 INTERNAL_OPEN_ONLY, /* oplock_request */
6245 NULL, /* lease */
6246 0, /* allocation_size */
6247 0, /* private_flags */
6248 NULL, /* sd */
6249 NULL, /* ea_list */
6250 &fsp, /* result */
6251 NULL, /* psbuf */
6252 NULL, NULL); /* create context */
6253 if (!NT_STATUS_IS_OK(status)) {
6254 DBG_INFO("Opening [%s] failed [%s]\n",
6255 smb_fname_str_dbg(smb_fname), nt_errstr(status));
6256 ok = false;
6257 goto out;
6258 }
6259
6260 file_data = talloc_array(talloc_tos(), uint8_t, plist_file_size);
6261 if (file_data == NULL) {
6262 ok = false;
6263 goto out;
6264 }
6265
6266 nread = SMB_VFS_NEXT_PREAD(handle, fsp, file_data, plist_file_size, 0);
6267 if (nread != plist_file_size) {
6268 DBG_ERR("Short read on [%s]: %zu/%zd\n",
6269 fsp_str_dbg(fsp), nread, plist_file_size);
6270 ok = false;
6271 goto out;
6272
6273 }
6274
6275 status = close_file(NULL, fsp, NORMAL_CLOSE);
6276 fsp = NULL;
6277 if (!NT_STATUS_IS_OK(status)) {
6278 DBG_ERR("close_file failed: %s\n", nt_errstr(status));
6279 ok = false;
6280 goto out;
6281 }
6282
6283 lines = file_lines_parse((char *)file_data,
6284 plist_file_size,
6285 &numlines,
6286 talloc_tos());
6287 if (lines == NULL) {
6288 ok = false;
6289 goto out;
6290 }
6291
6292 band_size_line = fruit_get_bandsize_line(lines, numlines);
6293 if (band_size_line == NULL) {
6294 DBG_ERR("Didn't find band-size key in [%s]\n",
6295 smb_fname_str_dbg(smb_fname));
6296 ok = false;
6297 goto out;
6298 }
6299
6300 ok = fruit_get_bandsize_from_line(band_size_line, band_size);
6301 if (!ok) {
6302 DBG_ERR("fruit_get_bandsize_from_line failed\n");
6303 goto out;
6304 }
6305
6306 DBG_DEBUG("Parsed band-size [%zu] for [%s]\n", *band_size, plist);
6307
6308 out:
6309 if (fsp != NULL) {
6310 status = close_file(NULL, fsp, NORMAL_CLOSE);
6311 if (!NT_STATUS_IS_OK(status)) {
6312 DBG_ERR("close_file failed: %s\n", nt_errstr(status));
6313 }
6314 fsp = NULL;
6315 }
6316 TALLOC_FREE(plist);
6317 TALLOC_FREE(smb_fname);
6318 TALLOC_FREE(file_data);
6319 TALLOC_FREE(lines);
6320 return ok;
6321 }
6322
6323 struct fruit_disk_free_state {
6324 size_t total_size;
6325 };
6326
6327 static bool fruit_get_num_bands(vfs_handle_struct *handle,
6328 char *bundle,
6329 size_t *_nbands)
6330 {
6331 char *path = NULL;
6332 struct smb_filename *bands_dir = NULL;
6333 DIR *d = NULL;
6334 struct dirent *e = NULL;
6335 size_t nbands;
6336 int ret;
6337
6338 path = talloc_asprintf(talloc_tos(),
6339 "%s/%s/bands",
6340 handle->conn->connectpath,
6341 bundle);
6342 if (path == NULL) {
6343 return false;
6344 }
6345
6346 bands_dir = synthetic_smb_fname(talloc_tos(),
6347 path,
6348 NULL,
6349 NULL,
6350 0);
6351 TALLOC_FREE(path);
6352 if (bands_dir == NULL) {
6353 return false;
6354 }
6355
6356 d = SMB_VFS_NEXT_OPENDIR(handle, bands_dir, NULL, 0);
6357 if (d == NULL) {
6358 TALLOC_FREE(bands_dir);
6359 return false;
6360 }
6361
6362 nbands = 0;
6363
6364 for (e = SMB_VFS_NEXT_READDIR(handle, d, NULL);
6365 e != NULL;
6366 e = SMB_VFS_NEXT_READDIR(handle, d, NULL))
6367 {
6368 if (ISDOT(e->d_name) || ISDOTDOT(e->d_name)) {
6369 continue;
6370 }
6371 nbands++;
6372 }
6373
6374 ret = SMB_VFS_NEXT_CLOSEDIR(handle, d);
6375 if (ret != 0) {
6376 TALLOC_FREE(bands_dir);
6377 return false;
6378 }
6379
6380 DBG_DEBUG("%zu bands in [%s]\n", nbands, smb_fname_str_dbg(bands_dir));
6381
6382 TALLOC_FREE(bands_dir);
6383
6384 *_nbands = nbands;
6385 return true;
6386 }
6387
6388 static bool fruit_tmsize_do_dirent(vfs_handle_struct *handle,
6389 struct fruit_disk_free_state *state,
6390 struct dirent *e)
6391 {
6392 bool ok;
6393 char *p = NULL;
6394 size_t sparsebundle_strlen = strlen("sparsebundle");
6395 size_t bandsize = 0;
6396 size_t nbands;
6397 double tm_size;
6398
6399 p = strstr(e->d_name, "sparsebundle");
6400 if (p == NULL) {
6401 return true;
6402 }
6403
6404 if (p[sparsebundle_strlen] != '\0') {
6405 return true;
6406 }
6407
6408 DBG_DEBUG("Processing sparsebundle [%s]\n", e->d_name);
6409
6410 ok = fruit_get_bandsize(handle, e->d_name, &bandsize);
6411 if (!ok) {
6412 /*
6413 * Beware of race conditions: this may be an uninitialized
6414 * Info.plist that a client is just creating. We don't want let
6415 * this to trigger complete failure.
6416 */
6417 DBG_ERR("Processing sparsebundle [%s] failed\n", e->d_name);
6418 return true;
6419 }
6420
6421 ok = fruit_get_num_bands(handle, e->d_name, &nbands);
6422 if (!ok) {
6423 /*
6424 * Beware of race conditions: this may be a backup sparsebundle
6425 * in an early stage lacking a bands subdirectory. We don't want
6426 * let this to trigger complete failure.
6427 */
6428 DBG_ERR("Processing sparsebundle [%s] failed\n", e->d_name);
6429 return true;
6430 }
6431
6432 tm_size = bandsize * nbands;
6433 if (tm_size > UINT64_MAX) {
6434 DBG_ERR("tmsize overflow: bandsize [%zu] nbands [%zu]\n",
6435 bandsize, nbands);
6436 return false;
6437 }
6438
6439 if (state->total_size + tm_size < state->total_size) {
6440 DBG_ERR("tmsize overflow: bandsize [%zu] nbands [%zu]\n",
6441 bandsize, nbands);
6442 return false;
6443 }
6444
6445 state->total_size += tm_size;
6446
6447 DBG_DEBUG("[%s] tm_size [%.0f] total_size [%zu]\n",
6448 e->d_name, tm_size, state->total_size);
6449
6450 return true;
6451 }
6452
6453 /**
6454 * Calculate used size of a TimeMachine volume
6455 *
6456 * This assumes that the volume is used only for TimeMachine.
6457 *
6458 * - readdir(basedir of share), then
6459 * - for every element that matches regex "^\(.*\)\.sparsebundle$" :
6460 * - parse "\1.sparsebundle/Info.plist" and read the band-size XML key
6461 * - count band files in "\1.sparsebundle/bands/"
6462 * - calculate used size of all bands: band_count * band_size
6463 **/
6464 static uint64_t fruit_disk_free(vfs_handle_struct *handle,
6465 const struct smb_filename *smb_fname,
6466 uint64_t *_bsize,
6467 uint64_t *_dfree,
6468 uint64_t *_dsize)
6469 {
6470 struct fruit_config_data *config = NULL;
6471 struct fruit_disk_free_state state = {0};
6472 DIR *d = NULL;
6473 struct dirent *e = NULL;
6474 uint64_t dfree;
6475 uint64_t dsize;
6476 int ret;
6477 bool ok;
6478
6479 SMB_VFS_HANDLE_GET_DATA(handle, config,
6480 struct fruit_config_data,
6481 return UINT64_MAX);
6482
6483 if (!config->time_machine ||
6484 config->time_machine_max_size == 0)
6485 {
6486 return SMB_VFS_NEXT_DISK_FREE(handle,
6487 smb_fname,
6488 _bsize,
6489 _dfree,
6490 _dsize);
6491 }
6492
6493 d = SMB_VFS_NEXT_OPENDIR(handle, smb_fname, NULL, 0);
6494 if (d == NULL) {
6495 return UINT64_MAX;
6496 }
6497
6498 for (e = SMB_VFS_NEXT_READDIR(handle, d, NULL);
6499 e != NULL;
6500 e = SMB_VFS_NEXT_READDIR(handle, d, NULL))
6501 {
6502 ok = fruit_tmsize_do_dirent(handle, &state, e);
6503 if (!ok) {
6504 SMB_VFS_NEXT_CLOSEDIR(handle, d);
6505 return UINT64_MAX;
6506 }
6507 }
6508
6509 ret = SMB_VFS_NEXT_CLOSEDIR(handle, d);
6510 if (ret != 0) {
6511 return UINT64_MAX;
6512 }
6513
6514 dsize = config->time_machine_max_size / 512;
6515 dfree = dsize - (state.total_size / 512);
6516 if (dfree > dsize) {
6517 dfree = 0;
6518 }
6519
6520 *_bsize = 512;
6521 *_dsize = dsize;
6522 *_dfree = dfree;
6523 return dfree / 2;
6524 }
6525
6526 static struct vfs_fn_pointers vfs_fruit_fns = {
6527 .connect_fn = fruit_connect,
6528 .disk_free_fn = fruit_disk_free,
6529
6530 /* File operations */
6531 .chmod_fn = fruit_chmod,
6532 .chown_fn = fruit_chown,
6533 .unlink_fn = fruit_unlink,
6534 .rename_fn = fruit_rename,
6535 .rmdir_fn = fruit_rmdir,
6536 .open_fn = fruit_open,
6537 .pread_fn = fruit_pread,
6538 .pwrite_fn = fruit_pwrite,
6539 .pread_send_fn = fruit_pread_send,
6540 .pread_recv_fn = fruit_pread_recv,
6541 .pwrite_send_fn = fruit_pwrite_send,
6542 .pwrite_recv_fn = fruit_pwrite_recv,
6543 .stat_fn = fruit_stat,
6544 .lstat_fn = fruit_lstat,
6545 .fstat_fn = fruit_fstat,
6546 .streaminfo_fn = fruit_streaminfo,
6547 .ntimes_fn = fruit_ntimes,
6548 .ftruncate_fn = fruit_ftruncate,
6549 .fallocate_fn = fruit_fallocate,
6550 .create_file_fn = fruit_create_file,
6551 .readdir_attr_fn = fruit_readdir_attr,
6552 .offload_read_send_fn = fruit_offload_read_send,
6553 .offload_read_recv_fn = fruit_offload_read_recv,
6554 .offload_write_send_fn = fruit_offload_write_send,
6555 .offload_write_recv_fn = fruit_offload_write_recv,
6556
6557 /* NT ACL operations */
6558 .fget_nt_acl_fn = fruit_fget_nt_acl,
6559 .fset_nt_acl_fn = fruit_fset_nt_acl,
6560 };
6561
6562 static_decl_vfs;
6563 NTSTATUS vfs_fruit_init(TALLOC_CTX *ctx)
6564 {
6565 NTSTATUS ret = smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fruit",
6566 &vfs_fruit_fns);
6567 if (!NT_STATUS_IS_OK(ret)) {
6568 return ret;
6569 }
6570
6571 vfs_fruit_debug_level = debug_add_class("fruit");
6572 if (vfs_fruit_debug_level == -1) {
6573 vfs_fruit_debug_level = DBGC_VFS;
6574 DEBUG(0, ("%s: Couldn't register custom debugging class!\n",
6575 "vfs_fruit_init"));
6576 } else {
6577 DEBUG(10, ("%s: Debug class number of '%s': %d\n",
6578 "vfs_fruit_init","fruit",vfs_fruit_debug_level));
6579 }
6580
6581 return ret;
6582 }
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