Commit | Line | Data |
---|---|---|
1c3344a1 WD |
1 | /* |
2 | * Handle passing Access Control Lists between systems. | |
3 | * | |
4 | * Copyright (C) 1996 Andrew Tridgell | |
5 | * Copyright (C) 1996 Paul Mackerras | |
6 | * Copyright (C) 2006 Wayne Davison | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | * | |
13 | * This program is distributed in the hope that it will be useful, | |
14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | * GNU General Public License for more details. | |
17 | * | |
18 | * You should have received a copy of the GNU General Public License along | |
19 | * with this program; if not, write to the Free Software Foundation, Inc., | |
20 | * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. | |
21 | */ | |
22 | ||
23 | #include "rsync.h" | |
24 | #include "lib/sysacls.h" | |
25 | ||
26 | #ifdef SUPPORT_ACLS | |
27 | ||
28 | extern int dry_run; | |
29 | extern int am_root; | |
30 | extern int read_only; | |
31 | extern int list_only; | |
32 | extern int orig_umask; | |
33 | extern int protocol_version; | |
34 | extern int numeric_ids; | |
35 | extern int inc_recurse; | |
36 | ||
37 | #define XMIT_USER_OBJ (1<<0) | |
38 | #define XMIT_USER_LIST (1<<1) | |
39 | #define XMIT_GROUP_OBJ (1<<2) | |
40 | #define XMIT_GROUP_LIST (1<<3) | |
41 | #define XMIT_MASK_OBJ (1<<4) | |
42 | #define XMIT_OTHER_OBJ (1<<5) | |
43 | ||
44 | /* === ACL structures === */ | |
45 | ||
46 | typedef struct { | |
47 | id_t id; | |
48 | uchar access; | |
49 | } id_access; | |
50 | ||
51 | typedef struct { | |
52 | id_access *idas; | |
53 | int count; | |
54 | } ida_entries; | |
55 | ||
56 | typedef struct { | |
57 | char *name; | |
58 | uchar len; | |
59 | } idname; | |
60 | ||
61 | #define NO_ENTRY ((uchar)0x80) | |
62 | typedef struct rsync_acl { | |
63 | ida_entries users; | |
64 | ida_entries groups; | |
65 | /* These will be NO_ENTRY if there's no such entry. */ | |
66 | uchar user_obj; | |
67 | uchar group_obj; | |
68 | uchar mask_obj; | |
69 | uchar other_obj; | |
70 | } rsync_acl; | |
71 | ||
72 | typedef struct { | |
73 | rsync_acl racl; | |
74 | SMB_ACL_T sacl; | |
75 | } acl_duo; | |
76 | ||
77 | static const rsync_acl empty_rsync_acl = { | |
78 | {NULL, 0}, {NULL, 0}, NO_ENTRY, NO_ENTRY, NO_ENTRY, NO_ENTRY | |
79 | }; | |
80 | ||
81 | static item_list access_acl_list = EMPTY_ITEM_LIST; | |
82 | static item_list default_acl_list = EMPTY_ITEM_LIST; | |
83 | ||
84 | /* === Calculations on ACL types === */ | |
85 | ||
86 | static const char *str_acl_type(SMB_ACL_TYPE_T type) | |
87 | { | |
88 | return type == SMB_ACL_TYPE_ACCESS ? "SMB_ACL_TYPE_ACCESS" | |
89 | : type == SMB_ACL_TYPE_DEFAULT ? "SMB_ACL_TYPE_DEFAULT" | |
90 | : "unknown SMB_ACL_TYPE_T"; | |
91 | } | |
92 | ||
93 | static int calc_sacl_entries(const rsync_acl *racl) | |
94 | { | |
95 | /* A System ACL always gets user/group/other permission entries. */ | |
96 | return racl->users.count + racl->groups.count | |
97 | #ifdef ACLS_NEED_MASK | |
98 | + 4; | |
99 | #else | |
100 | + (racl->mask_obj != NO_ENTRY) + 3; | |
101 | #endif | |
102 | } | |
103 | ||
104 | /* Extracts and returns the permission bits from the ACL. This cannot be | |
105 | * called on an rsync_acl that has NO_ENTRY in any spot but the mask. */ | |
106 | static int rsync_acl_get_perms(const rsync_acl *racl) | |
107 | { | |
108 | return (racl->user_obj << 6) | |
109 | + ((racl->mask_obj != NO_ENTRY ? racl->mask_obj : racl->group_obj) << 3) | |
110 | + racl->other_obj; | |
111 | } | |
112 | ||
113 | /* Removes the permission-bit entries from the ACL because these | |
114 | * can be reconstructed from the file's mode. */ | |
115 | static void rsync_acl_strip_perms(rsync_acl *racl) | |
116 | { | |
117 | racl->user_obj = NO_ENTRY; | |
118 | if (racl->mask_obj == NO_ENTRY) | |
119 | racl->group_obj = NO_ENTRY; | |
120 | else { | |
121 | if (racl->group_obj == racl->mask_obj) | |
122 | racl->group_obj = NO_ENTRY; | |
123 | racl->mask_obj = NO_ENTRY; | |
124 | } | |
125 | racl->other_obj = NO_ENTRY; | |
126 | } | |
127 | ||
128 | /* Given an empty rsync_acl, fake up the permission bits. */ | |
129 | static void rsync_acl_fake_perms(rsync_acl *racl, mode_t mode) | |
130 | { | |
131 | racl->user_obj = (mode >> 6) & 7; | |
132 | racl->group_obj = (mode >> 3) & 7; | |
133 | racl->other_obj = mode & 7; | |
134 | } | |
135 | ||
136 | /* === Rsync ACL functions === */ | |
137 | ||
138 | static rsync_acl *create_racl(void) | |
139 | { | |
140 | rsync_acl *racl = new(rsync_acl); | |
141 | ||
142 | if (!racl) | |
143 | out_of_memory("create_racl"); | |
144 | *racl = empty_rsync_acl; | |
145 | ||
146 | return racl; | |
147 | } | |
148 | ||
149 | static BOOL ida_entries_equal(const ida_entries *ial1, const ida_entries *ial2) | |
150 | { | |
151 | id_access *ida1, *ida2; | |
152 | int count = ial1->count; | |
153 | if (count != ial2->count) | |
154 | return False; | |
155 | ida1 = ial1->idas; | |
156 | ida2 = ial2->idas; | |
157 | for (; count--; ida1++, ida2++) { | |
158 | if (ida1->access != ida2->access || ida1->id != ida2->id) | |
159 | return False; | |
160 | } | |
161 | return True; | |
162 | } | |
163 | ||
164 | static BOOL rsync_acl_equal(const rsync_acl *racl1, const rsync_acl *racl2) | |
165 | { | |
166 | return racl1->user_obj == racl2->user_obj | |
167 | && racl1->group_obj == racl2->group_obj | |
168 | && racl1->mask_obj == racl2->mask_obj | |
169 | && racl1->other_obj == racl2->other_obj | |
170 | && ida_entries_equal(&racl1->users, &racl2->users) | |
171 | && ida_entries_equal(&racl1->groups, &racl2->groups); | |
172 | } | |
173 | ||
174 | /* Are the extended (non-permission-bit) entries equal? If so, the rest of | |
175 | * the ACL will be handled by the normal mode-preservation code. This is | |
176 | * only meaningful for access ACLs! Note: the 1st arg is a fully-populated | |
177 | * rsync_acl, but the 2nd parameter can be a condensed rsync_acl, which means | |
178 | * that it might have several of its permission objects set to NO_ENTRY. */ | |
179 | static BOOL rsync_acl_equal_enough(const rsync_acl *racl1, | |
180 | const rsync_acl *racl2, mode_t m) | |
181 | { | |
182 | if ((racl1->mask_obj ^ racl2->mask_obj) & NO_ENTRY) | |
183 | return False; /* One has a mask and the other doesn't */ | |
184 | ||
185 | /* When there's a mask, the group_obj becomes an extended entry. */ | |
186 | if (racl1->mask_obj != NO_ENTRY) { | |
187 | /* A condensed rsync_acl with a mask can only have no | |
188 | * group_obj when it was identical to the mask. This | |
189 | * means that it was also identical to the group attrs | |
190 | * from the mode. */ | |
191 | if (racl2->group_obj == NO_ENTRY) { | |
192 | if (racl1->group_obj != ((m >> 3) & 7)) | |
193 | return False; | |
194 | } else if (racl1->group_obj != racl2->group_obj) | |
195 | return False; | |
196 | } | |
197 | return ida_entries_equal(&racl1->users, &racl2->users) | |
198 | && ida_entries_equal(&racl1->groups, &racl2->groups); | |
199 | } | |
200 | ||
201 | static void rsync_acl_free(rsync_acl *racl) | |
202 | { | |
203 | if (racl->users.idas) | |
204 | free(racl->users.idas); | |
205 | if (racl->groups.idas) | |
206 | free(racl->groups.idas); | |
207 | *racl = empty_rsync_acl; | |
208 | } | |
209 | ||
210 | void free_acl(statx *sxp) | |
211 | { | |
212 | if (sxp->acc_acl) { | |
213 | rsync_acl_free(sxp->acc_acl); | |
214 | free(sxp->acc_acl); | |
215 | sxp->acc_acl = NULL; | |
216 | } | |
217 | if (sxp->def_acl) { | |
218 | rsync_acl_free(sxp->def_acl); | |
219 | free(sxp->def_acl); | |
220 | sxp->def_acl = NULL; | |
221 | } | |
222 | } | |
223 | ||
224 | static int id_access_sorter(const void *r1, const void *r2) | |
225 | { | |
226 | id_access *ida1 = (id_access *)r1; | |
227 | id_access *ida2 = (id_access *)r2; | |
228 | id_t rid1 = ida1->id, rid2 = ida2->id; | |
229 | return rid1 == rid2 ? 0 : rid1 < rid2 ? -1 : 1; | |
230 | } | |
231 | ||
232 | static void sort_ida_entries(ida_entries *idal) | |
233 | { | |
234 | if (!idal->count) | |
235 | return; | |
236 | qsort(idal->idas, idal->count, sizeof idal->idas[0], id_access_sorter); | |
237 | } | |
238 | ||
239 | /* === System ACLs === */ | |
240 | ||
241 | /* Transfer the count id_access items out of the temp_ida_list into either | |
242 | * the users or groups ida_entries list in racl. */ | |
243 | static void save_idas(rsync_acl *racl, SMB_ACL_TAG_T type, item_list *temp_ida_list) | |
244 | { | |
245 | id_access *idas; | |
246 | ida_entries *ent; | |
247 | ||
248 | if (temp_ida_list->count) { | |
249 | int cnt = temp_ida_list->count; | |
250 | id_access *temp_idas = temp_ida_list->items; | |
251 | if (!(idas = new_array(id_access, cnt))) | |
252 | out_of_memory("save_idas"); | |
253 | memcpy(idas, temp_idas, cnt * sizeof *temp_idas); | |
254 | } else | |
255 | idas = NULL; | |
256 | ||
257 | ent = type == SMB_ACL_USER ? &racl->users : &racl->groups; | |
258 | ||
259 | if (ent->count) { | |
260 | rprintf(FERROR, "save_idas: disjoint list found for type %d\n", type); | |
261 | exit_cleanup(RERR_UNSUPPORTED); | |
262 | } | |
263 | ent->count = temp_ida_list->count; | |
264 | ent->idas = idas; | |
265 | ||
266 | /* Truncate the temporary list now that its idas have been saved. */ | |
267 | temp_ida_list->count = 0; | |
268 | } | |
269 | ||
270 | /* Unpack system ACL -> rsync ACL verbatim. Return whether we succeeded. */ | |
271 | static BOOL unpack_smb_acl(SMB_ACL_T sacl, rsync_acl *racl) | |
272 | { | |
273 | static item_list temp_ida_list = EMPTY_ITEM_LIST; | |
274 | SMB_ACL_TAG_T prior_list_type = 0; | |
275 | SMB_ACL_ENTRY_T entry; | |
276 | const char *errfun; | |
277 | int rc; | |
278 | ||
279 | errfun = "sys_acl_get_entry"; | |
280 | for (rc = sys_acl_get_entry(sacl, SMB_ACL_FIRST_ENTRY, &entry); | |
281 | rc == 1; | |
282 | rc = sys_acl_get_entry(sacl, SMB_ACL_NEXT_ENTRY, &entry)) { | |
283 | SMB_ACL_TAG_T tag_type; | |
284 | SMB_ACL_PERMSET_T permset; | |
285 | uchar access; | |
286 | void *qualifier; | |
287 | id_access *ida; | |
288 | if ((rc = sys_acl_get_tag_type(entry, &tag_type))) { | |
289 | errfun = "sys_acl_get_tag_type"; | |
290 | break; | |
291 | } | |
292 | if ((rc = sys_acl_get_permset(entry, &permset))) { | |
293 | errfun = "sys_acl_get_tag_type"; | |
294 | break; | |
295 | } | |
296 | access = (sys_acl_get_perm(permset, SMB_ACL_READ) ? 4 : 0) | |
297 | | (sys_acl_get_perm(permset, SMB_ACL_WRITE) ? 2 : 0) | |
298 | | (sys_acl_get_perm(permset, SMB_ACL_EXECUTE) ? 1 : 0); | |
299 | /* continue == done with entry; break == store in temporary ida list */ | |
300 | switch (tag_type) { | |
301 | case SMB_ACL_USER_OBJ: | |
302 | if (racl->user_obj == NO_ENTRY) | |
303 | racl->user_obj = access; | |
304 | else | |
305 | rprintf(FINFO, "unpack_smb_acl: warning: duplicate USER_OBJ entry ignored\n"); | |
306 | continue; | |
307 | case SMB_ACL_USER: | |
308 | break; | |
309 | case SMB_ACL_GROUP_OBJ: | |
310 | if (racl->group_obj == NO_ENTRY) | |
311 | racl->group_obj = access; | |
312 | else | |
313 | rprintf(FINFO, "unpack_smb_acl: warning: duplicate GROUP_OBJ entry ignored\n"); | |
314 | continue; | |
315 | case SMB_ACL_GROUP: | |
316 | break; | |
317 | case SMB_ACL_MASK: | |
318 | if (racl->mask_obj == NO_ENTRY) | |
319 | racl->mask_obj = access; | |
320 | else | |
321 | rprintf(FINFO, "unpack_smb_acl: warning: duplicate MASK entry ignored\n"); | |
322 | continue; | |
323 | case SMB_ACL_OTHER: | |
324 | if (racl->other_obj == NO_ENTRY) | |
325 | racl->other_obj = access; | |
326 | else | |
327 | rprintf(FINFO, "unpack_smb_acl: warning: duplicate OTHER entry ignored\n"); | |
328 | continue; | |
329 | default: | |
330 | rprintf(FINFO, "unpack_smb_acl: warning: entry with unrecognized tag type ignored\n"); | |
331 | continue; | |
332 | } | |
333 | if (!(qualifier = sys_acl_get_qualifier(entry))) { | |
334 | errfun = "sys_acl_get_tag_type"; | |
335 | rc = EINVAL; | |
336 | break; | |
337 | } | |
338 | if (tag_type != prior_list_type) { | |
339 | if (prior_list_type) | |
340 | save_idas(racl, prior_list_type, &temp_ida_list); | |
341 | prior_list_type = tag_type; | |
342 | } | |
343 | ida = EXPAND_ITEM_LIST(&temp_ida_list, id_access, -10); | |
344 | ida->id = *((id_t *)qualifier); | |
345 | ida->access = access; | |
346 | sys_acl_free_qualifier(qualifier, tag_type); | |
347 | } | |
348 | if (rc) { | |
349 | rsyserr(FERROR, errno, "unpack_smb_acl: %s()", errfun); | |
350 | rsync_acl_free(racl); | |
351 | return False; | |
352 | } | |
353 | if (prior_list_type) | |
354 | save_idas(racl, prior_list_type, &temp_ida_list); | |
355 | ||
356 | sort_ida_entries(&racl->users); | |
357 | sort_ida_entries(&racl->groups); | |
358 | ||
359 | #ifdef ACLS_NEED_MASK | |
360 | if (!racl->users.count && !racl->groups.count && racl->mask_obj != NO_ENTRY) { | |
361 | /* Throw away a superfluous mask, but mask off the | |
362 | * group perms with it first. */ | |
363 | racl->group_obj &= racl->mask_obj; | |
364 | racl->mask_obj = NO_ENTRY; | |
365 | } | |
366 | #endif | |
367 | ||
368 | return True; | |
369 | } | |
370 | ||
371 | /* Synactic sugar for system calls */ | |
372 | ||
373 | #define CALL_OR_ERROR(func,args,str) \ | |
374 | do { \ | |
375 | if (func args) { \ | |
376 | errfun = str; \ | |
377 | goto error_exit; \ | |
378 | } \ | |
379 | } while (0) | |
380 | ||
381 | #define COE(func,args) CALL_OR_ERROR(func,args,#func) | |
382 | #define COE2(func,args) CALL_OR_ERROR(func,args,NULL) | |
383 | ||
384 | /* Store the permissions in the system ACL entry. */ | |
385 | static int store_access_in_entry(uchar access, SMB_ACL_ENTRY_T entry) | |
386 | { | |
387 | const char *errfun = NULL; | |
388 | SMB_ACL_PERMSET_T permset; | |
389 | ||
390 | COE( sys_acl_get_permset,(entry, &permset) ); | |
391 | COE( sys_acl_clear_perms,(permset) ); | |
392 | if (access & 4) | |
393 | COE( sys_acl_add_perm,(permset, SMB_ACL_READ) ); | |
394 | if (access & 2) | |
395 | COE( sys_acl_add_perm,(permset, SMB_ACL_WRITE) ); | |
396 | if (access & 1) | |
397 | COE( sys_acl_add_perm,(permset, SMB_ACL_EXECUTE) ); | |
398 | COE( sys_acl_set_permset,(entry, permset) ); | |
399 | ||
400 | return 0; | |
401 | ||
402 | error_exit: | |
403 | rsyserr(FERROR, errno, "store_access_in_entry %s()", errfun); | |
404 | return -1; | |
405 | } | |
406 | ||
407 | /* Pack rsync ACL -> system ACL verbatim. Return whether we succeeded. */ | |
408 | static BOOL pack_smb_acl(SMB_ACL_T *smb_acl, const rsync_acl *racl) | |
409 | { | |
410 | #ifdef ACLS_NEED_MASK | |
411 | uchar mask_bits; | |
412 | #endif | |
413 | size_t count; | |
414 | id_access *ida; | |
415 | const char *errfun = NULL; | |
416 | SMB_ACL_ENTRY_T entry; | |
417 | ||
418 | if (!(*smb_acl = sys_acl_init(calc_sacl_entries(racl)))) { | |
419 | rsyserr(FERROR, errno, "pack_smb_acl: sys_acl_init()"); | |
420 | return False; | |
421 | } | |
422 | ||
423 | COE( sys_acl_create_entry,(smb_acl, &entry) ); | |
424 | COE( sys_acl_set_tag_type,(entry, SMB_ACL_USER_OBJ) ); | |
425 | COE2( store_access_in_entry,(racl->user_obj & 7, entry) ); | |
426 | ||
427 | for (ida = racl->users.idas, count = racl->users.count; count--; ida++) { | |
428 | COE( sys_acl_create_entry,(smb_acl, &entry) ); | |
429 | COE( sys_acl_set_tag_type,(entry, SMB_ACL_USER) ); | |
430 | COE( sys_acl_set_qualifier,(entry, (void*)&ida->id) ); | |
431 | COE2( store_access_in_entry,(ida->access, entry) ); | |
432 | } | |
433 | ||
434 | COE( sys_acl_create_entry,(smb_acl, &entry) ); | |
435 | COE( sys_acl_set_tag_type,(entry, SMB_ACL_GROUP_OBJ) ); | |
436 | COE2( store_access_in_entry,(racl->group_obj & 7, entry) ); | |
437 | ||
438 | for (ida = racl->groups.idas, count = racl->groups.count; count--; ida++) { | |
439 | COE( sys_acl_create_entry,(smb_acl, &entry) ); | |
440 | COE( sys_acl_set_tag_type,(entry, SMB_ACL_GROUP) ); | |
441 | COE( sys_acl_set_qualifier,(entry, (void*)&ida->id) ); | |
442 | COE2( store_access_in_entry,(ida->access, entry) ); | |
443 | } | |
444 | ||
445 | #ifdef ACLS_NEED_MASK | |
446 | mask_bits = racl->mask_obj == NO_ENTRY ? racl->group_obj & 7 : racl->mask_obj; | |
447 | COE( sys_acl_create_entry,(smb_acl, &entry) ); | |
448 | COE( sys_acl_set_tag_type,(entry, SMB_ACL_MASK) ); | |
449 | COE2( store_access_in_entry,(mask_bits, entry) ); | |
450 | #else | |
451 | if (racl->mask_obj != NO_ENTRY) { | |
452 | COE( sys_acl_create_entry,(smb_acl, &entry) ); | |
453 | COE( sys_acl_set_tag_type,(entry, SMB_ACL_MASK) ); | |
454 | COE2( store_access_in_entry,(racl->mask_obj, entry) ); | |
455 | } | |
456 | #endif | |
457 | ||
458 | COE( sys_acl_create_entry,(smb_acl, &entry) ); | |
459 | COE( sys_acl_set_tag_type,(entry, SMB_ACL_OTHER) ); | |
460 | COE2( store_access_in_entry,(racl->other_obj & 7, entry) ); | |
461 | ||
462 | #ifdef DEBUG | |
463 | if (sys_acl_valid(*smb_acl) < 0) | |
464 | rprintf(FERROR, "pack_smb_acl: warning: system says the ACL I packed is invalid\n"); | |
465 | #endif | |
466 | ||
467 | return True; | |
468 | ||
469 | error_exit: | |
470 | if (errfun) { | |
471 | rsyserr(FERROR, errno, "pack_smb_acl %s()", errfun); | |
472 | } | |
473 | sys_acl_free_acl(*smb_acl); | |
474 | return False; | |
475 | } | |
476 | ||
477 | static int find_matching_rsync_acl(const rsync_acl *racl, SMB_ACL_TYPE_T type, | |
478 | const item_list *racl_list) | |
479 | { | |
480 | static int access_match = -1, default_match = -1; | |
481 | int *match = type == SMB_ACL_TYPE_ACCESS ? &access_match : &default_match; | |
482 | size_t count = racl_list->count; | |
483 | ||
484 | /* If this is the first time through or we didn't match the last | |
485 | * time, then start at the end of the list, which should be the | |
486 | * best place to start hunting. */ | |
487 | if (*match == -1) | |
488 | *match = racl_list->count - 1; | |
489 | while (count--) { | |
490 | rsync_acl *base = racl_list->items; | |
491 | if (rsync_acl_equal(base + *match, racl)) | |
492 | return *match; | |
493 | if (!(*match)--) | |
494 | *match = racl_list->count - 1; | |
495 | } | |
496 | ||
497 | *match = -1; | |
498 | return *match; | |
499 | } | |
500 | ||
501 | static int get_rsync_acl(const char *fname, rsync_acl *racl, | |
502 | SMB_ACL_TYPE_T type, mode_t mode) | |
503 | { | |
504 | SMB_ACL_T sacl = sys_acl_get_file(fname, type); | |
505 | ||
506 | if (sacl) { | |
507 | BOOL ok = unpack_smb_acl(sacl, racl); | |
508 | ||
509 | sys_acl_free_acl(sacl); | |
510 | if (!ok) { | |
511 | return -1; | |
512 | } | |
d4a013ed | 513 | } else if (no_acl_syscall_error(errno)) { |
1c3344a1 WD |
514 | /* ACLs are not supported, so pretend we have a basic ACL. */ |
515 | if (type == SMB_ACL_TYPE_ACCESS) | |
516 | rsync_acl_fake_perms(racl, mode); | |
517 | } else { | |
518 | rsyserr(FERROR, errno, "get_acl: sys_acl_get_file(%s, %s)", | |
519 | fname, str_acl_type(type)); | |
520 | return -1; | |
521 | } | |
522 | ||
523 | return 0; | |
524 | } | |
525 | ||
526 | /* Return the Access Control List for the given filename. */ | |
527 | int get_acl(const char *fname, statx *sxp) | |
528 | { | |
529 | sxp->acc_acl = create_racl(); | |
530 | if (get_rsync_acl(fname, sxp->acc_acl, SMB_ACL_TYPE_ACCESS, | |
531 | sxp->st.st_mode) < 0) { | |
532 | free_acl(sxp); | |
533 | return -1; | |
534 | } | |
535 | ||
536 | if (S_ISDIR(sxp->st.st_mode)) { | |
537 | sxp->def_acl = create_racl(); | |
538 | if (get_rsync_acl(fname, sxp->def_acl, SMB_ACL_TYPE_DEFAULT, | |
539 | sxp->st.st_mode) < 0) { | |
540 | free_acl(sxp); | |
541 | return -1; | |
542 | } | |
543 | } | |
544 | ||
545 | return 0; | |
546 | } | |
547 | ||
548 | /* === Send functions === */ | |
549 | ||
550 | /* The general strategy with the tag_type <-> character mapping is that | |
551 | * lowercase implies that no qualifier follows, where uppercase does. | |
552 | * A similar idiom for the ACL type (access or default) itself, but | |
553 | * lowercase in this instance means there's no ACL following, so the | |
554 | * ACL is a repeat, so the receiver should reuse the last of the same | |
555 | * type ACL. */ | |
556 | ||
557 | /* Send the ida list over the file descriptor. */ | |
558 | static void send_ida_entries(const ida_entries *idal, int user_names, int f) | |
559 | { | |
560 | id_access *ida; | |
561 | size_t count = idal->count; | |
562 | ||
563 | write_abbrevint(f, idal->count); | |
564 | ||
565 | for (ida = idal->idas; count--; ida++) { | |
566 | char *name = user_names ? add_uid(ida->id) : add_gid(ida->id); | |
567 | write_abbrevint(f, ida->id); | |
568 | if (inc_recurse && name) { | |
569 | int len = strlen(name); | |
570 | write_byte(f, ida->access | (uchar)0x80); | |
571 | write_byte(f, len); | |
572 | write_buf(f, name, len); | |
573 | } else | |
574 | write_byte(f, ida->access); | |
575 | } | |
576 | } | |
577 | ||
578 | static void send_rsync_acl(rsync_acl *racl, SMB_ACL_TYPE_T type, | |
579 | item_list *racl_list, int f) | |
580 | { | |
581 | int ndx = find_matching_rsync_acl(racl, type, racl_list); | |
582 | ||
583 | /* Send 0 (-1 + 1) to indicate that literal ACL data follows. */ | |
584 | write_abbrevint(f, ndx + 1); | |
585 | ||
586 | if (ndx < 0) { | |
587 | rsync_acl *new_racl = EXPAND_ITEM_LIST(racl_list, rsync_acl, 1000); | |
588 | uchar flags = 0; | |
589 | ||
590 | if (racl->user_obj != NO_ENTRY) | |
591 | flags |= XMIT_USER_OBJ; | |
592 | if (racl->users.count) | |
593 | flags |= XMIT_USER_LIST; | |
594 | ||
595 | if (racl->group_obj != NO_ENTRY) | |
596 | flags |= XMIT_GROUP_OBJ; | |
597 | if (racl->groups.count) | |
598 | flags |= XMIT_GROUP_LIST; | |
599 | ||
600 | if (racl->mask_obj != NO_ENTRY) | |
601 | flags |= XMIT_MASK_OBJ; | |
602 | ||
603 | if (racl->other_obj != NO_ENTRY) | |
604 | flags |= XMIT_OTHER_OBJ; | |
605 | ||
606 | write_byte(f, flags); | |
607 | ||
608 | if (flags & XMIT_USER_OBJ) | |
609 | write_byte(f, racl->user_obj); | |
610 | if (flags & XMIT_USER_LIST) | |
611 | send_ida_entries(&racl->users, 1, f); | |
612 | ||
613 | if (flags & XMIT_GROUP_OBJ) | |
614 | write_byte(f, racl->group_obj); | |
615 | if (flags & XMIT_GROUP_LIST) | |
616 | send_ida_entries(&racl->groups, 0, f); | |
617 | ||
618 | if (flags & XMIT_MASK_OBJ) | |
619 | write_byte(f, racl->mask_obj); | |
620 | ||
621 | if (flags & XMIT_OTHER_OBJ) | |
622 | write_byte(f, racl->other_obj); | |
623 | ||
624 | /* Give the allocated data to the new list object. */ | |
625 | *new_racl = *racl; | |
626 | *racl = empty_rsync_acl; | |
627 | } | |
628 | } | |
629 | ||
630 | /* Send the ACL from the statx structure down the indicated file descriptor. | |
631 | * This also frees the ACL data. */ | |
632 | void send_acl(statx *sxp, int f) | |
633 | { | |
1c3344a1 WD |
634 | if (!sxp->acc_acl) { |
635 | sxp->acc_acl = create_racl(); | |
636 | rsync_acl_fake_perms(sxp->acc_acl, sxp->st.st_mode); | |
637 | } | |
638 | /* Avoid sending values that can be inferred from other data. */ | |
639 | rsync_acl_strip_perms(sxp->acc_acl); | |
640 | ||
641 | send_rsync_acl(sxp->acc_acl, SMB_ACL_TYPE_ACCESS, &access_acl_list, f); | |
642 | ||
643 | if (S_ISDIR(sxp->st.st_mode)) { | |
644 | if (!sxp->def_acl) | |
645 | sxp->def_acl = create_racl(); | |
646 | ||
647 | send_rsync_acl(sxp->def_acl, SMB_ACL_TYPE_DEFAULT, &default_acl_list, f); | |
648 | } | |
649 | } | |
650 | ||
651 | /* === Receive functions === */ | |
652 | ||
653 | static uchar recv_acl_access(uchar *name_follows_val, int f) | |
654 | { | |
655 | uchar access = read_byte(f); | |
656 | ||
657 | if (name_follows_val) { | |
658 | if (access & (uchar)0x80) { | |
659 | access &= ~(uchar)0x80; | |
660 | *name_follows_val = 1; | |
661 | } else | |
662 | *name_follows_val = 0; | |
663 | } | |
664 | ||
665 | if (access & ~(4 | 2 | 1)) { | |
666 | rprintf(FERROR, "recv_acl_access: bogus permset %o\n", access); | |
667 | exit_cleanup(RERR_STREAMIO); | |
668 | } | |
669 | ||
670 | return access; | |
671 | } | |
672 | ||
673 | static uchar recv_ida_entries(ida_entries *ent, int user_names, int f) | |
674 | { | |
675 | uchar computed_mask_bits = 0; | |
676 | uchar has_name; | |
677 | int i, count = read_abbrevint(f); | |
678 | ||
679 | if (count) { | |
680 | if (!(ent->idas = new_array(id_access, ent->count))) | |
681 | out_of_memory("recv_ida_entries"); | |
682 | } else | |
683 | ent->idas = NULL; | |
684 | ||
685 | ent->count = count; | |
686 | ||
687 | for (i = 0; i < count; i++) { | |
688 | id_t id = read_abbrevint(f); | |
689 | int access = recv_acl_access(&has_name, f); | |
690 | ||
691 | if (has_name) { | |
692 | if (user_names) | |
693 | id = recv_user_name(f, id); | |
694 | else | |
695 | id = recv_group_name(f, id); | |
696 | } else if (user_names) { | |
697 | if (inc_recurse && am_root && !numeric_ids) | |
698 | id = match_uid(id); | |
699 | } else { | |
700 | if (inc_recurse && (!am_root || !numeric_ids)) | |
701 | id = match_gid(id); | |
702 | } | |
703 | ||
704 | ent->idas[i].id = id; | |
705 | ent->idas[i].access = access; | |
706 | computed_mask_bits |= access; | |
707 | } | |
708 | ||
709 | return computed_mask_bits; | |
710 | } | |
711 | ||
712 | static int recv_rsync_acl(item_list *racl_list, SMB_ACL_TYPE_T type, int f) | |
713 | { | |
714 | uchar computed_mask_bits = 0; | |
715 | acl_duo *duo_item; | |
716 | uchar flags; | |
717 | int ndx = read_abbrevint(f); | |
718 | ||
719 | if (ndx < 0 || (size_t)ndx > racl_list->count) { | |
720 | rprintf(FERROR, "recv_acl_index: %s ACL index %d > %d\n", | |
e5abce8e | 721 | str_acl_type(type), ndx, (int)racl_list->count); |
1c3344a1 WD |
722 | exit_cleanup(RERR_STREAMIO); |
723 | } | |
724 | ||
725 | if (ndx != 0) | |
726 | return ndx - 1; | |
727 | ||
728 | ndx = racl_list->count; | |
729 | duo_item = EXPAND_ITEM_LIST(racl_list, acl_duo, 1000); | |
730 | duo_item->racl = empty_rsync_acl; | |
731 | ||
732 | flags = read_byte(f); | |
733 | ||
734 | if (flags & XMIT_USER_OBJ) | |
735 | duo_item->racl.user_obj = recv_acl_access(NULL, f); | |
736 | ||
737 | if (flags & XMIT_USER_LIST) | |
738 | computed_mask_bits |= recv_ida_entries(&duo_item->racl.users, 1, f); | |
739 | ||
740 | if (flags & XMIT_GROUP_OBJ) | |
741 | duo_item->racl.group_obj = recv_acl_access(NULL, f); | |
742 | ||
743 | if (flags & XMIT_GROUP_LIST) | |
744 | computed_mask_bits |= recv_ida_entries(&duo_item->racl.groups, 0, f); | |
745 | ||
746 | if (flags & XMIT_MASK_OBJ) | |
747 | duo_item->racl.mask_obj = recv_acl_access(NULL, f); | |
748 | ||
749 | if (flags & XMIT_OTHER_OBJ) | |
750 | duo_item->racl.other_obj = recv_acl_access(NULL, f); | |
751 | ||
752 | if (!duo_item->racl.users.count && !duo_item->racl.groups.count) { | |
753 | /* If we received a superfluous mask, throw it away. */ | |
754 | if (duo_item->racl.mask_obj != NO_ENTRY) { | |
755 | /* Mask off the group perms with it first. */ | |
756 | duo_item->racl.group_obj &= duo_item->racl.mask_obj | NO_ENTRY; | |
757 | duo_item->racl.mask_obj = NO_ENTRY; | |
758 | } | |
759 | } else if (duo_item->racl.mask_obj == NO_ENTRY) /* Must be non-empty with lists. */ | |
760 | duo_item->racl.mask_obj = computed_mask_bits | (duo_item->racl.group_obj & 7); | |
761 | ||
762 | duo_item->sacl = NULL; | |
763 | ||
764 | return ndx; | |
765 | } | |
766 | ||
767 | /* Receive the ACL info the sender has included for this file-list entry. */ | |
768 | void receive_acl(struct file_struct *file, int f) | |
769 | { | |
770 | F_ACL(file) = recv_rsync_acl(&access_acl_list, SMB_ACL_TYPE_ACCESS, f); | |
771 | ||
772 | if (S_ISDIR(file->mode)) | |
773 | F_DEF_ACL(file) = recv_rsync_acl(&default_acl_list, SMB_ACL_TYPE_DEFAULT, f); | |
774 | } | |
775 | ||
776 | static int cache_rsync_acl(rsync_acl *racl, SMB_ACL_TYPE_T type, item_list *racl_list) | |
777 | { | |
778 | int ndx; | |
779 | ||
780 | if (!racl) | |
781 | ndx = -1; | |
782 | else if ((ndx = find_matching_rsync_acl(racl, type, racl_list)) == -1) { | |
783 | acl_duo *new_duo; | |
784 | ndx = racl_list->count; | |
785 | new_duo = EXPAND_ITEM_LIST(racl_list, acl_duo, 1000); | |
786 | new_duo->racl = *racl; | |
787 | new_duo->sacl = NULL; | |
788 | *racl = empty_rsync_acl; | |
789 | } | |
790 | ||
791 | return ndx; | |
792 | } | |
793 | ||
794 | /* Turn the ACL data in statx into cached ACL data, setting the index | |
795 | * values in the file struct. */ | |
796 | void cache_acl(struct file_struct *file, statx *sxp) | |
797 | { | |
798 | F_ACL(file) = cache_rsync_acl(sxp->acc_acl, | |
799 | SMB_ACL_TYPE_ACCESS, &access_acl_list); | |
800 | ||
801 | if (S_ISDIR(sxp->st.st_mode)) { | |
802 | F_DEF_ACL(file) = cache_rsync_acl(sxp->def_acl, | |
803 | SMB_ACL_TYPE_DEFAULT, &default_acl_list); | |
804 | } | |
805 | } | |
806 | ||
807 | static mode_t change_sacl_perms(SMB_ACL_T sacl, rsync_acl *racl, mode_t old_mode, mode_t mode) | |
808 | { | |
809 | SMB_ACL_ENTRY_T entry; | |
810 | const char *errfun; | |
811 | int rc; | |
812 | ||
813 | if (S_ISDIR(mode)) { | |
814 | /* If the sticky bit is going on, it's not safe to allow all | |
815 | * the new ACL to go into effect before it gets set. */ | |
816 | #ifdef SMB_ACL_LOSES_SPECIAL_MODE_BITS | |
817 | if (mode & S_ISVTX) | |
818 | mode &= ~0077; | |
819 | #else | |
820 | if (mode & S_ISVTX && !(old_mode & S_ISVTX)) | |
821 | mode &= ~0077; | |
822 | } else { | |
823 | /* If setuid or setgid is going off, it's not safe to allow all | |
824 | * the new ACL to go into effect before they get cleared. */ | |
825 | if ((old_mode & S_ISUID && !(mode & S_ISUID)) | |
826 | || (old_mode & S_ISGID && !(mode & S_ISGID))) | |
827 | mode &= ~0077; | |
828 | #endif | |
829 | } | |
830 | ||
831 | errfun = "sys_acl_get_entry"; | |
832 | for (rc = sys_acl_get_entry(sacl, SMB_ACL_FIRST_ENTRY, &entry); | |
833 | rc == 1; | |
834 | rc = sys_acl_get_entry(sacl, SMB_ACL_NEXT_ENTRY, &entry)) { | |
835 | SMB_ACL_TAG_T tag_type; | |
836 | if ((rc = sys_acl_get_tag_type(entry, &tag_type))) { | |
837 | errfun = "sys_acl_get_tag_type"; | |
838 | break; | |
839 | } | |
840 | switch (tag_type) { | |
841 | case SMB_ACL_USER_OBJ: | |
842 | COE2( store_access_in_entry,((mode >> 6) & 7, entry) ); | |
843 | break; | |
844 | case SMB_ACL_GROUP_OBJ: | |
845 | /* group is only empty when identical to group perms. */ | |
846 | if (racl->group_obj != NO_ENTRY) | |
847 | break; | |
848 | COE2( store_access_in_entry,((mode >> 3) & 7, entry) ); | |
849 | break; | |
850 | case SMB_ACL_MASK: | |
851 | #ifndef ACLS_NEED_MASK | |
852 | /* mask is only empty when we don't need it. */ | |
853 | if (racl->mask_obj == NO_ENTRY) | |
854 | break; | |
855 | #endif | |
856 | COE2( store_access_in_entry,((mode >> 3) & 7, entry) ); | |
857 | break; | |
858 | case SMB_ACL_OTHER: | |
859 | COE2( store_access_in_entry,(mode & 7, entry) ); | |
860 | break; | |
861 | } | |
862 | } | |
863 | if (rc) { | |
864 | error_exit: | |
865 | if (errfun) { | |
866 | rsyserr(FERROR, errno, "change_sacl_perms: %s()", | |
867 | errfun); | |
868 | } | |
869 | return (mode_t)~0; | |
870 | } | |
871 | ||
872 | #ifdef SMB_ACL_LOSES_SPECIAL_MODE_BITS | |
873 | /* Ensure that chmod() will be called to restore any lost setid bits. */ | |
874 | if (old_mode & (S_ISUID | S_ISGID | S_ISVTX) | |
875 | && BITS_EQUAL(old_mode, mode, CHMOD_BITS)) | |
876 | old_mode &= ~(S_ISUID | S_ISGID | S_ISVTX); | |
877 | #endif | |
878 | ||
879 | /* Return the mode of the file on disk, as we will set them. */ | |
880 | return (old_mode & ~ACCESSPERMS) | (mode & ACCESSPERMS); | |
881 | } | |
882 | ||
883 | static int set_rsync_acl(const char *fname, acl_duo *duo_item, | |
884 | SMB_ACL_TYPE_T type, statx *sxp, mode_t mode) | |
885 | { | |
886 | if (type == SMB_ACL_TYPE_DEFAULT | |
887 | && duo_item->racl.user_obj == NO_ENTRY) { | |
888 | if (sys_acl_delete_def_file(fname) < 0) { | |
889 | rsyserr(FERROR, errno, "set_acl: sys_acl_delete_def_file(%s)", | |
890 | fname); | |
891 | return -1; | |
892 | } | |
893 | } else { | |
894 | mode_t cur_mode = sxp->st.st_mode; | |
895 | if (!duo_item->sacl | |
896 | && !pack_smb_acl(&duo_item->sacl, &duo_item->racl)) | |
897 | return -1; | |
898 | if (type == SMB_ACL_TYPE_ACCESS) { | |
899 | cur_mode = change_sacl_perms(duo_item->sacl, &duo_item->racl, | |
900 | cur_mode, mode); | |
901 | if (cur_mode == (mode_t)~0) | |
902 | return 0; | |
903 | } | |
904 | if (sys_acl_set_file(fname, type, duo_item->sacl) < 0) { | |
905 | rsyserr(FERROR, errno, "set_acl: sys_acl_set_file(%s, %s)", | |
906 | fname, str_acl_type(type)); | |
907 | return -1; | |
908 | } | |
909 | if (type == SMB_ACL_TYPE_ACCESS) | |
910 | sxp->st.st_mode = cur_mode; | |
911 | } | |
912 | ||
913 | return 0; | |
914 | } | |
915 | ||
916 | /* Set ACL on indicated filename. | |
917 | * | |
918 | * This sets extended access ACL entries and default ACL. If convenient, | |
919 | * it sets permission bits along with the access ACL and signals having | |
920 | * done so by modifying sxp->st.st_mode. | |
921 | * | |
922 | * Returns 1 for unchanged, 0 for changed, -1 for failed. Call this | |
923 | * with fname set to NULL to just check if the ACL is unchanged. */ | |
924 | int set_acl(const char *fname, const struct file_struct *file, statx *sxp) | |
925 | { | |
926 | int unchanged = 1; | |
927 | int32 ndx; | |
928 | BOOL eq; | |
929 | ||
930 | if (!dry_run && (read_only || list_only)) { | |
931 | errno = EROFS; | |
932 | return -1; | |
933 | } | |
934 | ||
935 | ndx = F_ACL(file); | |
936 | if (ndx >= 0 && (size_t)ndx < access_acl_list.count) { | |
937 | acl_duo *duo_item = access_acl_list.items; | |
938 | duo_item += ndx; | |
939 | eq = sxp->acc_acl | |
940 | && rsync_acl_equal_enough(sxp->acc_acl, &duo_item->racl, file->mode); | |
941 | if (!eq) { | |
942 | unchanged = 0; | |
943 | if (!dry_run && fname | |
944 | && set_rsync_acl(fname, duo_item, SMB_ACL_TYPE_ACCESS, | |
945 | sxp, file->mode) < 0) | |
946 | unchanged = -1; | |
947 | } | |
948 | } | |
949 | ||
950 | if (!S_ISDIR(sxp->st.st_mode)) | |
951 | return unchanged; | |
952 | ||
953 | ndx = F_DEF_ACL(file); | |
954 | if (ndx >= 0 && (size_t)ndx < default_acl_list.count) { | |
955 | acl_duo *duo_item = default_acl_list.items; | |
956 | duo_item += ndx; | |
957 | eq = sxp->def_acl && rsync_acl_equal(sxp->def_acl, &duo_item->racl); | |
958 | if (!eq) { | |
959 | if (unchanged > 0) | |
960 | unchanged = 0; | |
961 | if (!dry_run && fname | |
962 | && set_rsync_acl(fname, duo_item, SMB_ACL_TYPE_DEFAULT, | |
963 | sxp, file->mode) < 0) | |
964 | unchanged = -1; | |
965 | } | |
966 | } | |
967 | ||
968 | return unchanged; | |
969 | } | |
970 | ||
971 | /* === Enumeration functions for uid mapping === */ | |
972 | ||
973 | /* Context -- one and only one. Should be cycled through once on uid | |
974 | * mapping and once on gid mapping. */ | |
975 | static item_list *_enum_racl_lists[] = { | |
976 | &access_acl_list, &default_acl_list, NULL | |
977 | }; | |
978 | ||
979 | static item_list **enum_racl_list = &_enum_racl_lists[0]; | |
980 | static int enum_ida_index = 0; | |
981 | static size_t enum_racl_index = 0; | |
982 | ||
983 | /* This returns the next tag_type id from the given ACL for the next entry, | |
984 | * or it returns 0 if there are no more tag_type ids in the acl. */ | |
985 | static id_t *next_ace_id(SMB_ACL_TAG_T tag_type, const rsync_acl *racl) | |
986 | { | |
987 | const ida_entries *idal = tag_type == SMB_ACL_USER ? &racl->users : &racl->groups; | |
988 | if (enum_ida_index < idal->count) { | |
989 | id_access *ida = &idal->idas[enum_ida_index++]; | |
990 | return &ida->id; | |
991 | } | |
992 | enum_ida_index = 0; | |
993 | return NULL; | |
994 | } | |
995 | ||
996 | static id_t *next_acl_id(SMB_ACL_TAG_T tag_type, const item_list *racl_list) | |
997 | { | |
998 | for (; enum_racl_index < racl_list->count; enum_racl_index++) { | |
999 | id_t *id; | |
1000 | acl_duo *duo_item = racl_list->items; | |
1001 | duo_item += enum_racl_index; | |
1002 | if ((id = next_ace_id(tag_type, &duo_item->racl)) != NULL) | |
1003 | return id; | |
1004 | } | |
1005 | enum_racl_index = 0; | |
1006 | return NULL; | |
1007 | } | |
1008 | ||
1009 | static id_t *next_acl_list_id(SMB_ACL_TAG_T tag_type) | |
1010 | { | |
1011 | for (; *enum_racl_list; enum_racl_list++) { | |
1012 | id_t *id = next_acl_id(tag_type, *enum_racl_list); | |
1013 | if (id) | |
1014 | return id; | |
1015 | } | |
1016 | enum_racl_list = &_enum_racl_lists[0]; | |
1017 | return NULL; | |
1018 | } | |
1019 | ||
1020 | id_t *next_acl_uid() | |
1021 | { | |
1022 | return next_acl_list_id(SMB_ACL_USER); | |
1023 | } | |
1024 | ||
1025 | id_t *next_acl_gid() | |
1026 | { | |
1027 | return next_acl_list_id(SMB_ACL_GROUP); | |
1028 | } | |
1029 | ||
1030 | /* This is used by dest_mode(). */ | |
1031 | int default_perms_for_dir(const char *dir) | |
1032 | { | |
1033 | rsync_acl racl; | |
1034 | SMB_ACL_T sacl; | |
1035 | BOOL ok; | |
1036 | int perms; | |
1037 | ||
1038 | if (dir == NULL) | |
1039 | dir = "."; | |
1040 | perms = ACCESSPERMS & ~orig_umask; | |
1041 | /* Read the directory's default ACL. If it has none, this will successfully return an empty ACL. */ | |
1042 | sacl = sys_acl_get_file(dir, SMB_ACL_TYPE_DEFAULT); | |
1043 | if (sacl == NULL) { | |
1044 | /* Couldn't get an ACL. Darn. */ | |
1045 | switch (errno) { | |
d4a013ed | 1046 | #ifdef ENOTSUP |
1c3344a1 | 1047 | case ENOTSUP: |
d4a013ed | 1048 | #endif |
1c3344a1 WD |
1049 | case ENOSYS: |
1050 | /* No ACLs are available. */ | |
1051 | break; | |
1052 | case ENOENT: | |
1053 | if (dry_run) { | |
1054 | /* We're doing a dry run, so the containing directory | |
1055 | * wasn't actually created. Don't worry about it. */ | |
1056 | break; | |
1057 | } | |
1058 | /* Otherwise fall through. */ | |
1059 | default: | |
1060 | rprintf(FERROR, "default_perms_for_dir: sys_acl_get_file(%s, %s): %s, falling back on umask\n", | |
1061 | dir, str_acl_type(SMB_ACL_TYPE_DEFAULT), strerror(errno)); | |
1062 | } | |
1063 | return perms; | |
1064 | } | |
1065 | ||
1066 | /* Convert it. */ | |
1067 | racl = empty_rsync_acl; | |
1068 | ok = unpack_smb_acl(sacl, &racl); | |
1069 | sys_acl_free_acl(sacl); | |
1070 | if (!ok) { | |
1071 | rprintf(FERROR, "default_perms_for_dir: unpack_smb_acl failed, falling back on umask\n"); | |
1072 | return perms; | |
1073 | } | |
1074 | ||
1075 | /* Apply the permission-bit entries of the default ACL, if any. */ | |
1076 | if (racl.user_obj != NO_ENTRY) { | |
1077 | perms = rsync_acl_get_perms(&racl); | |
1078 | if (verbose > 2) | |
1079 | rprintf(FINFO, "got ACL-based default perms %o for directory %s\n", perms, dir); | |
1080 | } | |
1081 | ||
1082 | rsync_acl_free(&racl); | |
1083 | return perms; | |
1084 | } | |
1085 | ||
1086 | #endif /* SUPPORT_ACLS */ |