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1c3344a1 WD |
1 | /* |
2 | Unix SMB/CIFS implementation. | |
3 | Samba system utilities for ACL support. | |
4 | Copyright (C) Jeremy Allison 2000. | |
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 2 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, write to the Free Software | |
18 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
19 | */ | |
20 | ||
21 | #include "rsync.h" | |
22 | #include "sysacls.h" /****** ADDED ******/ | |
23 | ||
24 | #ifdef SUPPORT_ACLS | |
25 | ||
26 | /****** EXTRAS -- THESE ITEMS ARE NOT FROM THE SAMBA SOURCE ******/ | |
27 | #ifdef DEBUG | |
28 | #undef DEBUG | |
29 | #endif | |
30 | #define DEBUG(x,y) | |
31 | ||
32 | void SAFE_FREE(void *mem) | |
33 | { | |
34 | if (mem) | |
35 | free(mem); | |
36 | } | |
37 | ||
38 | char *uidtoname(uid_t uid) | |
39 | { | |
40 | static char idbuf[12]; | |
41 | struct passwd *pw; | |
42 | ||
43 | if ((pw = getpwuid(uid)) == NULL) { | |
44 | slprintf(idbuf, sizeof(idbuf)-1, "%ld", (long)uid); | |
45 | return idbuf; | |
46 | } | |
47 | return pw->pw_name; | |
48 | } | |
49 | /****** EXTRAS -- END ******/ | |
50 | ||
51 | /* | |
52 | This file wraps all differing system ACL interfaces into a consistent | |
53 | one based on the POSIX interface. It also returns the correct errors | |
54 | for older UNIX systems that don't support ACLs. | |
55 | ||
56 | The interfaces that each ACL implementation must support are as follows : | |
57 | ||
58 | int sys_acl_get_entry( SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p) | |
59 | int sys_acl_get_tag_type( SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p) | |
60 | int sys_acl_get_permset( SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p | |
61 | void *sys_acl_get_qualifier( SMB_ACL_ENTRY_T entry_d) | |
62 | SMB_ACL_T sys_acl_get_file( const char *path_p, SMB_ACL_TYPE_T type) | |
63 | SMB_ACL_T sys_acl_get_fd(int fd) | |
64 | int sys_acl_clear_perms(SMB_ACL_PERMSET_T permset); | |
65 | int sys_acl_add_perm( SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm); | |
66 | char *sys_acl_to_text( SMB_ACL_T theacl, ssize_t *plen) | |
67 | SMB_ACL_T sys_acl_init( int count) | |
68 | int sys_acl_create_entry( SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry) | |
69 | int sys_acl_set_tag_type( SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype) | |
70 | int sys_acl_set_qualifier( SMB_ACL_ENTRY_T entry, void *qual) | |
71 | int sys_acl_set_permset( SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset) | |
72 | int sys_acl_valid( SMB_ACL_T theacl ) | |
73 | int sys_acl_set_file( const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) | |
74 | int sys_acl_set_fd( int fd, SMB_ACL_T theacl) | |
75 | int sys_acl_delete_def_file(const char *path) | |
76 | ||
77 | This next one is not POSIX complient - but we *have* to have it ! | |
78 | More POSIX braindamage. | |
79 | ||
80 | int sys_acl_get_perm( SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm) | |
81 | ||
82 | The generic POSIX free is the following call. We split this into | |
83 | several different free functions as we may need to add tag info | |
84 | to structures when emulating the POSIX interface. | |
85 | ||
86 | int sys_acl_free( void *obj_p) | |
87 | ||
88 | The calls we actually use are : | |
89 | ||
90 | int sys_acl_free_text(char *text) - free acl_to_text | |
91 | int sys_acl_free_acl(SMB_ACL_T posix_acl) | |
92 | int sys_acl_free_qualifier(void *qualifier, SMB_ACL_TAG_T tagtype) | |
93 | ||
94 | */ | |
95 | ||
96 | #if defined(HAVE_POSIX_ACLS) | |
97 | ||
98 | /* Identity mapping - easy. */ | |
99 | ||
100 | int sys_acl_get_entry( SMB_ACL_T the_acl, int entry_id, SMB_ACL_ENTRY_T *entry_p) | |
101 | { | |
102 | return acl_get_entry( the_acl, entry_id, entry_p); | |
103 | } | |
104 | ||
105 | int sys_acl_get_tag_type( SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p) | |
106 | { | |
107 | return acl_get_tag_type( entry_d, tag_type_p); | |
108 | } | |
109 | ||
110 | int sys_acl_get_permset( SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p) | |
111 | { | |
112 | return acl_get_permset( entry_d, permset_p); | |
113 | } | |
114 | ||
115 | void *sys_acl_get_qualifier( SMB_ACL_ENTRY_T entry_d) | |
116 | { | |
117 | return acl_get_qualifier( entry_d); | |
118 | } | |
119 | ||
120 | SMB_ACL_T sys_acl_get_file( const char *path_p, SMB_ACL_TYPE_T type) | |
121 | { | |
122 | return acl_get_file( path_p, type); | |
123 | } | |
124 | ||
125 | SMB_ACL_T sys_acl_get_fd(int fd) | |
126 | { | |
127 | return acl_get_fd(fd); | |
128 | } | |
129 | ||
130 | int sys_acl_clear_perms(SMB_ACL_PERMSET_T permset) | |
131 | { | |
132 | return acl_clear_perms(permset); | |
133 | } | |
134 | ||
135 | int sys_acl_add_perm( SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm) | |
136 | { | |
137 | return acl_add_perm(permset, perm); | |
138 | } | |
139 | ||
140 | int sys_acl_get_perm( SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm) | |
141 | { | |
142 | #if defined(HAVE_ACL_GET_PERM_NP) | |
143 | /* | |
144 | * Required for TrustedBSD-based ACL implementations where | |
145 | * non-POSIX.1e functions are denoted by a _np (non-portable) | |
146 | * suffix. | |
147 | */ | |
148 | return acl_get_perm_np(permset, perm); | |
149 | #else | |
150 | return acl_get_perm(permset, perm); | |
151 | #endif | |
152 | } | |
153 | ||
154 | char *sys_acl_to_text( SMB_ACL_T the_acl, ssize_t *plen) | |
155 | { | |
156 | return acl_to_text( the_acl, plen); | |
157 | } | |
158 | ||
159 | SMB_ACL_T sys_acl_init( int count) | |
160 | { | |
161 | return acl_init(count); | |
162 | } | |
163 | ||
164 | int sys_acl_create_entry( SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry) | |
165 | { | |
166 | return acl_create_entry(pacl, pentry); | |
167 | } | |
168 | ||
169 | int sys_acl_set_tag_type( SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype) | |
170 | { | |
171 | return acl_set_tag_type(entry, tagtype); | |
172 | } | |
173 | ||
174 | int sys_acl_set_qualifier( SMB_ACL_ENTRY_T entry, void *qual) | |
175 | { | |
176 | return acl_set_qualifier(entry, qual); | |
177 | } | |
178 | ||
179 | int sys_acl_set_permset( SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset) | |
180 | { | |
181 | return acl_set_permset(entry, permset); | |
182 | } | |
183 | ||
184 | int sys_acl_valid( SMB_ACL_T theacl ) | |
185 | { | |
186 | return acl_valid(theacl); | |
187 | } | |
188 | ||
189 | int sys_acl_set_file(const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) | |
190 | { | |
191 | return acl_set_file(name, acltype, theacl); | |
192 | } | |
193 | ||
194 | int sys_acl_set_fd( int fd, SMB_ACL_T theacl) | |
195 | { | |
196 | return acl_set_fd(fd, theacl); | |
197 | } | |
198 | ||
199 | int sys_acl_delete_def_file(const char *name) | |
200 | { | |
201 | return acl_delete_def_file(name); | |
202 | } | |
203 | ||
204 | int sys_acl_free_text(char *text) | |
205 | { | |
206 | return acl_free(text); | |
207 | } | |
208 | ||
209 | int sys_acl_free_acl(SMB_ACL_T the_acl) | |
210 | { | |
211 | return acl_free(the_acl); | |
212 | } | |
213 | ||
214 | int sys_acl_free_qualifier(void *qual, UNUSED(SMB_ACL_TAG_T tagtype)) | |
215 | { | |
216 | return acl_free(qual); | |
217 | } | |
218 | ||
219 | #elif defined(HAVE_TRU64_ACLS) | |
220 | /* | |
221 | * The interface to DEC/Compaq Tru64 UNIX ACLs | |
222 | * is based on Draft 13 of the POSIX spec which is | |
223 | * slightly different from the Draft 16 interface. | |
224 | * | |
225 | * Also, some of the permset manipulation functions | |
226 | * such as acl_clear_perm() and acl_add_perm() appear | |
227 | * to be broken on Tru64 so we have to manipulate | |
228 | * the permission bits in the permset directly. | |
229 | */ | |
230 | int sys_acl_get_entry( SMB_ACL_T the_acl, int entry_id, SMB_ACL_ENTRY_T *entry_p) | |
231 | { | |
232 | SMB_ACL_ENTRY_T entry; | |
233 | ||
234 | if (entry_id == SMB_ACL_FIRST_ENTRY && acl_first_entry(the_acl) != 0) { | |
235 | return -1; | |
236 | } | |
237 | ||
238 | errno = 0; | |
239 | if ((entry = acl_get_entry(the_acl)) != NULL) { | |
240 | *entry_p = entry; | |
241 | return 1; | |
242 | } | |
243 | ||
244 | return errno ? -1 : 0; | |
245 | } | |
246 | ||
247 | int sys_acl_get_tag_type( SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p) | |
248 | { | |
249 | return acl_get_tag_type( entry_d, tag_type_p); | |
250 | } | |
251 | ||
252 | int sys_acl_get_permset( SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p) | |
253 | { | |
254 | return acl_get_permset( entry_d, permset_p); | |
255 | } | |
256 | ||
257 | void *sys_acl_get_qualifier( SMB_ACL_ENTRY_T entry_d) | |
258 | { | |
259 | return acl_get_qualifier( entry_d); | |
260 | } | |
261 | ||
262 | SMB_ACL_T sys_acl_get_file( const char *path_p, SMB_ACL_TYPE_T type) | |
263 | { | |
264 | return acl_get_file((char *)path_p, type); | |
265 | } | |
266 | ||
267 | SMB_ACL_T sys_acl_get_fd(int fd) | |
268 | { | |
269 | return acl_get_fd(fd, ACL_TYPE_ACCESS); | |
270 | } | |
271 | ||
272 | int sys_acl_clear_perms(SMB_ACL_PERMSET_T permset) | |
273 | { | |
274 | *permset = 0; /* acl_clear_perm() is broken on Tru64 */ | |
275 | ||
276 | return 0; | |
277 | } | |
278 | ||
279 | int sys_acl_add_perm( SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm) | |
280 | { | |
281 | if (perm & ~(SMB_ACL_READ | SMB_ACL_WRITE | SMB_ACL_EXECUTE)) { | |
282 | errno = EINVAL; | |
283 | return -1; | |
284 | } | |
285 | ||
286 | *permset |= perm; /* acl_add_perm() is broken on Tru64 */ | |
287 | ||
288 | return 0; | |
289 | } | |
290 | ||
291 | int sys_acl_get_perm( SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm) | |
292 | { | |
293 | return *permset & perm; /* Tru64 doesn't have acl_get_perm() */ | |
294 | } | |
295 | ||
296 | char *sys_acl_to_text( SMB_ACL_T the_acl, ssize_t *plen) | |
297 | { | |
298 | return acl_to_text( the_acl, plen); | |
299 | } | |
300 | ||
301 | SMB_ACL_T sys_acl_init( int count) | |
302 | { | |
303 | return acl_init(count); | |
304 | } | |
305 | ||
306 | int sys_acl_create_entry( SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry) | |
307 | { | |
308 | SMB_ACL_ENTRY_T entry; | |
309 | ||
310 | if ((entry = acl_create_entry(pacl)) == NULL) { | |
311 | return -1; | |
312 | } | |
313 | ||
314 | *pentry = entry; | |
315 | return 0; | |
316 | } | |
317 | ||
318 | int sys_acl_set_tag_type( SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype) | |
319 | { | |
320 | return acl_set_tag_type(entry, tagtype); | |
321 | } | |
322 | ||
323 | int sys_acl_set_qualifier( SMB_ACL_ENTRY_T entry, void *qual) | |
324 | { | |
325 | return acl_set_qualifier(entry, qual); | |
326 | } | |
327 | ||
328 | int sys_acl_set_permset( SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset) | |
329 | { | |
330 | return acl_set_permset(entry, permset); | |
331 | } | |
332 | ||
333 | int sys_acl_valid( SMB_ACL_T theacl ) | |
334 | { | |
335 | acl_entry_t entry; | |
336 | ||
337 | return acl_valid(theacl, &entry); | |
338 | } | |
339 | ||
340 | int sys_acl_set_file( const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) | |
341 | { | |
342 | return acl_set_file((char *)name, acltype, theacl); | |
343 | } | |
344 | ||
345 | int sys_acl_set_fd( int fd, SMB_ACL_T theacl) | |
346 | { | |
347 | return acl_set_fd(fd, ACL_TYPE_ACCESS, theacl); | |
348 | } | |
349 | ||
350 | int sys_acl_delete_def_file(const char *name) | |
351 | { | |
352 | return acl_delete_def_file((char *)name); | |
353 | } | |
354 | ||
355 | int sys_acl_free_text(char *text) | |
356 | { | |
357 | /* | |
358 | * (void) cast and explicit return 0 are for DEC UNIX | |
359 | * which just #defines acl_free_text() to be free() | |
360 | */ | |
361 | (void) acl_free_text(text); | |
362 | return 0; | |
363 | } | |
364 | ||
365 | int sys_acl_free_acl(SMB_ACL_T the_acl) | |
366 | { | |
367 | return acl_free(the_acl); | |
368 | } | |
369 | ||
370 | int sys_acl_free_qualifier(void *qual, SMB_ACL_TAG_T tagtype) | |
371 | { | |
372 | return acl_free_qualifier(qual, tagtype); | |
373 | } | |
374 | ||
375 | #elif defined(HAVE_UNIXWARE_ACLS) || defined(HAVE_SOLARIS_ACLS) | |
376 | ||
377 | /* | |
378 | * Donated by Michael Davidson <md@sco.COM> for UnixWare / OpenUNIX. | |
379 | * Modified by Toomas Soome <tsoome@ut.ee> for Solaris. | |
380 | */ | |
381 | ||
382 | /* | |
383 | * Note that while this code implements sufficient functionality | |
384 | * to support the sys_acl_* interfaces it does not provide all | |
385 | * of the semantics of the POSIX ACL interfaces. | |
386 | * | |
387 | * In particular, an ACL entry descriptor (SMB_ACL_ENTRY_T) returned | |
388 | * from a call to sys_acl_get_entry() should not be assumed to be | |
389 | * valid after calling any of the following functions, which may | |
390 | * reorder the entries in the ACL. | |
391 | * | |
392 | * sys_acl_valid() | |
393 | * sys_acl_set_file() | |
394 | * sys_acl_set_fd() | |
395 | */ | |
396 | ||
397 | /* | |
398 | * The only difference between Solaris and UnixWare / OpenUNIX is | |
399 | * that the #defines for the ACL operations have different names | |
400 | */ | |
401 | #if defined(HAVE_UNIXWARE_ACLS) | |
402 | ||
403 | #define SETACL ACL_SET | |
404 | #define GETACL ACL_GET | |
405 | #define GETACLCNT ACL_CNT | |
406 | ||
407 | #endif | |
408 | ||
409 | ||
410 | int sys_acl_get_entry(SMB_ACL_T acl_d, int entry_id, SMB_ACL_ENTRY_T *entry_p) | |
411 | { | |
412 | if (entry_id != SMB_ACL_FIRST_ENTRY && entry_id != SMB_ACL_NEXT_ENTRY) { | |
413 | errno = EINVAL; | |
414 | return -1; | |
415 | } | |
416 | ||
417 | if (entry_p == NULL) { | |
418 | errno = EINVAL; | |
419 | return -1; | |
420 | } | |
421 | ||
422 | if (entry_id == SMB_ACL_FIRST_ENTRY) { | |
423 | acl_d->next = 0; | |
424 | } | |
425 | ||
426 | if (acl_d->next < 0) { | |
427 | errno = EINVAL; | |
428 | return -1; | |
429 | } | |
430 | ||
431 | if (acl_d->next >= acl_d->count) { | |
432 | return 0; | |
433 | } | |
434 | ||
435 | *entry_p = &acl_d->acl[acl_d->next++]; | |
436 | ||
437 | return 1; | |
438 | } | |
439 | ||
440 | int sys_acl_get_tag_type(SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *type_p) | |
441 | { | |
442 | *type_p = entry_d->a_type; | |
443 | ||
444 | return 0; | |
445 | } | |
446 | ||
447 | int sys_acl_get_permset(SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p) | |
448 | { | |
449 | *permset_p = &entry_d->a_perm; | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
454 | void *sys_acl_get_qualifier(SMB_ACL_ENTRY_T entry_d) | |
455 | { | |
456 | if (entry_d->a_type != SMB_ACL_USER | |
457 | && entry_d->a_type != SMB_ACL_GROUP) { | |
458 | errno = EINVAL; | |
459 | return NULL; | |
460 | } | |
461 | ||
462 | return &entry_d->a_id; | |
463 | } | |
464 | ||
465 | /* | |
466 | * There is no way of knowing what size the ACL returned by | |
467 | * GETACL will be unless you first call GETACLCNT which means | |
468 | * making an additional system call. | |
469 | * | |
470 | * In the hope of avoiding the cost of the additional system | |
471 | * call in most cases, we initially allocate enough space for | |
472 | * an ACL with INITIAL_ACL_SIZE entries. If this turns out to | |
473 | * be too small then we use GETACLCNT to find out the actual | |
474 | * size, reallocate the ACL buffer, and then call GETACL again. | |
475 | */ | |
476 | ||
477 | #define INITIAL_ACL_SIZE 16 | |
478 | ||
479 | SMB_ACL_T sys_acl_get_file(const char *path_p, SMB_ACL_TYPE_T type) | |
480 | { | |
481 | SMB_ACL_T acl_d; | |
482 | int count; /* # of ACL entries allocated */ | |
483 | int naccess; /* # of access ACL entries */ | |
484 | int ndefault; /* # of default ACL entries */ | |
485 | ||
486 | if (type != SMB_ACL_TYPE_ACCESS && type != SMB_ACL_TYPE_DEFAULT) { | |
487 | errno = EINVAL; | |
488 | return NULL; | |
489 | } | |
490 | ||
491 | count = INITIAL_ACL_SIZE; | |
492 | if ((acl_d = sys_acl_init(count)) == NULL) { | |
493 | return NULL; | |
494 | } | |
495 | ||
496 | /* | |
497 | * If there isn't enough space for the ACL entries we use | |
498 | * GETACLCNT to determine the actual number of ACL entries | |
499 | * reallocate and try again. This is in a loop because it | |
500 | * is possible that someone else could modify the ACL and | |
501 | * increase the number of entries between the call to | |
502 | * GETACLCNT and the call to GETACL. | |
503 | */ | |
504 | while ((count = acl(path_p, GETACL, count, &acl_d->acl[0])) < 0 | |
505 | && errno == ENOSPC) { | |
506 | ||
507 | sys_acl_free_acl(acl_d); | |
508 | ||
509 | if ((count = acl(path_p, GETACLCNT, 0, NULL)) < 0) { | |
510 | return NULL; | |
511 | } | |
512 | ||
513 | if ((acl_d = sys_acl_init(count)) == NULL) { | |
514 | return NULL; | |
515 | } | |
516 | } | |
517 | ||
518 | if (count < 0) { | |
519 | sys_acl_free_acl(acl_d); | |
520 | return NULL; | |
521 | } | |
522 | ||
523 | /* | |
524 | * calculate the number of access and default ACL entries | |
525 | * | |
526 | * Note: we assume that the acl() system call returned a | |
527 | * well formed ACL which is sorted so that all of the | |
528 | * access ACL entries preceed any default ACL entries | |
529 | */ | |
530 | for (naccess = 0; naccess < count; naccess++) { | |
531 | if (acl_d->acl[naccess].a_type & ACL_DEFAULT) | |
532 | break; | |
533 | } | |
534 | ndefault = count - naccess; | |
535 | ||
536 | /* | |
537 | * if the caller wants the default ACL we have to copy | |
538 | * the entries down to the start of the acl[] buffer | |
539 | * and mask out the ACL_DEFAULT flag from the type field | |
540 | */ | |
541 | if (type == SMB_ACL_TYPE_DEFAULT) { | |
542 | int i, j; | |
543 | ||
544 | for (i = 0, j = naccess; i < ndefault; i++, j++) { | |
545 | acl_d->acl[i] = acl_d->acl[j]; | |
546 | acl_d->acl[i].a_type &= ~ACL_DEFAULT; | |
547 | } | |
548 | ||
549 | acl_d->count = ndefault; | |
550 | } else { | |
551 | acl_d->count = naccess; | |
552 | } | |
553 | ||
554 | return acl_d; | |
555 | } | |
556 | ||
557 | SMB_ACL_T sys_acl_get_fd(int fd) | |
558 | { | |
559 | SMB_ACL_T acl_d; | |
560 | int count; /* # of ACL entries allocated */ | |
561 | int naccess; /* # of access ACL entries */ | |
562 | ||
563 | count = INITIAL_ACL_SIZE; | |
564 | if ((acl_d = sys_acl_init(count)) == NULL) { | |
565 | return NULL; | |
566 | } | |
567 | ||
568 | while ((count = facl(fd, GETACL, count, &acl_d->acl[0])) < 0 | |
569 | && errno == ENOSPC) { | |
570 | ||
571 | sys_acl_free_acl(acl_d); | |
572 | ||
573 | if ((count = facl(fd, GETACLCNT, 0, NULL)) < 0) { | |
574 | return NULL; | |
575 | } | |
576 | ||
577 | if ((acl_d = sys_acl_init(count)) == NULL) { | |
578 | return NULL; | |
579 | } | |
580 | } | |
581 | ||
582 | if (count < 0) { | |
583 | sys_acl_free_acl(acl_d); | |
584 | return NULL; | |
585 | } | |
586 | ||
587 | /* | |
588 | * calculate the number of access ACL entries | |
589 | */ | |
590 | for (naccess = 0; naccess < count; naccess++) { | |
591 | if (acl_d->acl[naccess].a_type & ACL_DEFAULT) | |
592 | break; | |
593 | } | |
594 | ||
595 | acl_d->count = naccess; | |
596 | ||
597 | return acl_d; | |
598 | } | |
599 | ||
600 | int sys_acl_clear_perms(SMB_ACL_PERMSET_T permset_d) | |
601 | { | |
602 | *permset_d = 0; | |
603 | ||
604 | return 0; | |
605 | } | |
606 | ||
607 | int sys_acl_add_perm(SMB_ACL_PERMSET_T permset_d, SMB_ACL_PERM_T perm) | |
608 | { | |
609 | if (perm != SMB_ACL_READ && perm != SMB_ACL_WRITE | |
610 | && perm != SMB_ACL_EXECUTE) { | |
611 | errno = EINVAL; | |
612 | return -1; | |
613 | } | |
614 | ||
615 | if (permset_d == NULL) { | |
616 | errno = EINVAL; | |
617 | return -1; | |
618 | } | |
619 | ||
620 | *permset_d |= perm; | |
621 | ||
622 | return 0; | |
623 | } | |
624 | ||
625 | int sys_acl_get_perm(SMB_ACL_PERMSET_T permset_d, SMB_ACL_PERM_T perm) | |
626 | { | |
627 | return *permset_d & perm; | |
628 | } | |
629 | ||
630 | char *sys_acl_to_text(SMB_ACL_T acl_d, ssize_t *len_p) | |
631 | { | |
632 | int i; | |
633 | int len, maxlen; | |
634 | char *text; | |
635 | ||
636 | /* | |
637 | * use an initial estimate of 20 bytes per ACL entry | |
638 | * when allocating memory for the text representation | |
639 | * of the ACL | |
640 | */ | |
641 | len = 0; | |
642 | maxlen = 20 * acl_d->count; | |
643 | if ((text = SMB_MALLOC(maxlen)) == NULL) { | |
644 | errno = ENOMEM; | |
645 | return NULL; | |
646 | } | |
647 | ||
648 | for (i = 0; i < acl_d->count; i++) { | |
649 | struct acl *ap = &acl_d->acl[i]; | |
650 | struct group *gr; | |
651 | char tagbuf[12]; | |
652 | char idbuf[12]; | |
653 | char *tag; | |
654 | char *id = ""; | |
655 | char perms[4]; | |
656 | int nbytes; | |
657 | ||
658 | switch (ap->a_type) { | |
659 | /* | |
660 | * for debugging purposes it's probably more | |
661 | * useful to dump unknown tag types rather | |
662 | * than just returning an error | |
663 | */ | |
664 | default: | |
665 | slprintf(tagbuf, sizeof(tagbuf)-1, "0x%x", | |
666 | ap->a_type); | |
667 | tag = tagbuf; | |
668 | slprintf(idbuf, sizeof(idbuf)-1, "%ld", | |
669 | (long)ap->a_id); | |
670 | id = idbuf; | |
671 | break; | |
672 | ||
673 | case SMB_ACL_USER: | |
674 | id = uidtoname(ap->a_id); | |
675 | case SMB_ACL_USER_OBJ: | |
676 | tag = "user"; | |
677 | break; | |
678 | ||
679 | case SMB_ACL_GROUP: | |
680 | if ((gr = getgrgid(ap->a_id)) == NULL) { | |
681 | slprintf(idbuf, sizeof(idbuf)-1, "%ld", | |
682 | (long)ap->a_id); | |
683 | id = idbuf; | |
684 | } else { | |
685 | id = gr->gr_name; | |
686 | } | |
687 | case SMB_ACL_GROUP_OBJ: | |
688 | tag = "group"; | |
689 | break; | |
690 | ||
691 | case SMB_ACL_OTHER: | |
692 | tag = "other"; | |
693 | break; | |
694 | ||
695 | case SMB_ACL_MASK: | |
696 | tag = "mask"; | |
697 | break; | |
698 | ||
699 | } | |
700 | ||
701 | perms[0] = (ap->a_perm & SMB_ACL_READ) ? 'r' : '-'; | |
702 | perms[1] = (ap->a_perm & SMB_ACL_WRITE) ? 'w' : '-'; | |
703 | perms[2] = (ap->a_perm & SMB_ACL_EXECUTE) ? 'x' : '-'; | |
704 | perms[3] = '\0'; | |
705 | ||
706 | /* <tag> : <qualifier> : rwx \n \0 */ | |
707 | nbytes = strlen(tag) + 1 + strlen(id) + 1 + 3 + 1 + 1; | |
708 | ||
709 | /* | |
710 | * If this entry would overflow the buffer | |
711 | * allocate enough additional memory for this | |
712 | * entry and an estimate of another 20 bytes | |
713 | * for each entry still to be processed | |
714 | */ | |
715 | if ((len + nbytes) > maxlen) { | |
716 | char *oldtext = text; | |
717 | ||
718 | maxlen += nbytes + 20 * (acl_d->count - i); | |
719 | ||
720 | if ((text = SMB_REALLOC(oldtext, maxlen)) == NULL) { | |
721 | SAFE_FREE(oldtext); | |
722 | errno = ENOMEM; | |
723 | return NULL; | |
724 | } | |
725 | } | |
726 | ||
727 | slprintf(&text[len], nbytes-1, "%s:%s:%s\n", tag, id, perms); | |
728 | len += nbytes - 1; | |
729 | } | |
730 | ||
731 | if (len_p) | |
732 | *len_p = len; | |
733 | ||
734 | return text; | |
735 | } | |
736 | ||
737 | SMB_ACL_T sys_acl_init(int count) | |
738 | { | |
739 | SMB_ACL_T a; | |
740 | ||
741 | if (count < 0) { | |
742 | errno = EINVAL; | |
743 | return NULL; | |
744 | } | |
745 | ||
746 | /* | |
747 | * note that since the definition of the structure pointed | |
748 | * to by the SMB_ACL_T includes the first element of the | |
749 | * acl[] array, this actually allocates an ACL with room | |
750 | * for (count+1) entries | |
751 | */ | |
752 | if ((a = (SMB_ACL_T)SMB_MALLOC(sizeof(struct SMB_ACL_T) + count * sizeof(struct acl))) == NULL) { | |
753 | errno = ENOMEM; | |
754 | return NULL; | |
755 | } | |
756 | ||
757 | a->size = count + 1; | |
758 | a->count = 0; | |
759 | a->next = -1; | |
760 | ||
761 | return a; | |
762 | } | |
763 | ||
764 | ||
765 | int sys_acl_create_entry(SMB_ACL_T *acl_p, SMB_ACL_ENTRY_T *entry_p) | |
766 | { | |
767 | SMB_ACL_T acl_d; | |
768 | SMB_ACL_ENTRY_T entry_d; | |
769 | ||
770 | if (acl_p == NULL || entry_p == NULL || (acl_d = *acl_p) == NULL) { | |
771 | errno = EINVAL; | |
772 | return -1; | |
773 | } | |
774 | ||
775 | if (acl_d->count >= acl_d->size) { | |
776 | errno = ENOSPC; | |
777 | return -1; | |
778 | } | |
779 | ||
780 | entry_d = &acl_d->acl[acl_d->count++]; | |
781 | entry_d->a_type = 0; | |
782 | entry_d->a_id = -1; | |
783 | entry_d->a_perm = 0; | |
784 | *entry_p = entry_d; | |
785 | ||
786 | return 0; | |
787 | } | |
788 | ||
789 | int sys_acl_set_tag_type(SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T tag_type) | |
790 | { | |
791 | switch (tag_type) { | |
792 | case SMB_ACL_USER: | |
793 | case SMB_ACL_USER_OBJ: | |
794 | case SMB_ACL_GROUP: | |
795 | case SMB_ACL_GROUP_OBJ: | |
796 | case SMB_ACL_OTHER: | |
797 | case SMB_ACL_MASK: | |
798 | entry_d->a_type = tag_type; | |
799 | break; | |
800 | default: | |
801 | errno = EINVAL; | |
802 | return -1; | |
803 | } | |
804 | ||
805 | return 0; | |
806 | } | |
807 | ||
808 | int sys_acl_set_qualifier(SMB_ACL_ENTRY_T entry_d, void *qual_p) | |
809 | { | |
810 | if (entry_d->a_type != SMB_ACL_GROUP | |
811 | && entry_d->a_type != SMB_ACL_USER) { | |
812 | errno = EINVAL; | |
813 | return -1; | |
814 | } | |
815 | ||
816 | entry_d->a_id = *((id_t *)qual_p); | |
817 | ||
818 | return 0; | |
819 | } | |
820 | ||
821 | int sys_acl_set_permset(SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T permset_d) | |
822 | { | |
823 | if (*permset_d & ~(SMB_ACL_READ|SMB_ACL_WRITE|SMB_ACL_EXECUTE)) { | |
824 | return EINVAL; | |
825 | } | |
826 | ||
827 | entry_d->a_perm = *permset_d; | |
828 | ||
829 | return 0; | |
830 | } | |
831 | ||
832 | /* | |
833 | * sort the ACL and check it for validity | |
834 | * | |
835 | * if it's a minimal ACL with only 4 entries then we | |
836 | * need to recalculate the mask permissions to make | |
837 | * sure that they are the same as the GROUP_OBJ | |
838 | * permissions as required by the UnixWare acl() system call. | |
839 | * | |
840 | * (note: since POSIX allows minimal ACLs which only contain | |
841 | * 3 entries - ie there is no mask entry - we should, in theory, | |
842 | * check for this and add a mask entry if necessary - however | |
843 | * we "know" that the caller of this interface always specifies | |
844 | * a mask so, in practice "this never happens" (tm) - if it *does* | |
845 | * happen aclsort() will fail and return an error and someone will | |
846 | * have to fix it ...) | |
847 | */ | |
848 | ||
849 | static int acl_sort(SMB_ACL_T acl_d) | |
850 | { | |
851 | int fixmask = (acl_d->count <= 4); | |
852 | ||
853 | if (aclsort(acl_d->count, fixmask, acl_d->acl) != 0) { | |
854 | errno = EINVAL; | |
855 | return -1; | |
856 | } | |
857 | return 0; | |
858 | } | |
859 | ||
860 | int sys_acl_valid(SMB_ACL_T acl_d) | |
861 | { | |
862 | return acl_sort(acl_d); | |
863 | } | |
864 | ||
865 | int sys_acl_set_file(const char *name, SMB_ACL_TYPE_T type, SMB_ACL_T acl_d) | |
866 | { | |
867 | struct stat s; | |
868 | struct acl *acl_p; | |
869 | int acl_count; | |
870 | struct acl *acl_buf = NULL; | |
871 | int ret; | |
872 | ||
873 | if (type != SMB_ACL_TYPE_ACCESS && type != SMB_ACL_TYPE_DEFAULT) { | |
874 | errno = EINVAL; | |
875 | return -1; | |
876 | } | |
877 | ||
878 | if (acl_sort(acl_d) != 0) { | |
879 | return -1; | |
880 | } | |
881 | ||
882 | acl_p = &acl_d->acl[0]; | |
883 | acl_count = acl_d->count; | |
884 | ||
885 | /* | |
886 | * if it's a directory there is extra work to do | |
887 | * since the acl() system call will replace both | |
888 | * the access ACLs and the default ACLs (if any) | |
889 | */ | |
890 | if (stat(name, &s) != 0) { | |
891 | return -1; | |
892 | } | |
893 | if (S_ISDIR(s.st_mode)) { | |
894 | SMB_ACL_T acc_acl; | |
895 | SMB_ACL_T def_acl; | |
896 | SMB_ACL_T tmp_acl; | |
897 | int i; | |
898 | ||
899 | if (type == SMB_ACL_TYPE_ACCESS) { | |
900 | acc_acl = acl_d; | |
901 | def_acl = tmp_acl = sys_acl_get_file(name, SMB_ACL_TYPE_DEFAULT); | |
902 | ||
903 | } else { | |
904 | def_acl = acl_d; | |
905 | acc_acl = tmp_acl = sys_acl_get_file(name, SMB_ACL_TYPE_ACCESS); | |
906 | } | |
907 | ||
908 | if (tmp_acl == NULL) { | |
909 | return -1; | |
910 | } | |
911 | ||
912 | /* | |
913 | * allocate a temporary buffer for the complete ACL | |
914 | */ | |
915 | acl_count = acc_acl->count + def_acl->count; | |
916 | acl_p = acl_buf = SMB_MALLOC_ARRAY(struct acl, acl_count); | |
917 | ||
918 | if (acl_buf == NULL) { | |
919 | sys_acl_free_acl(tmp_acl); | |
920 | errno = ENOMEM; | |
921 | return -1; | |
922 | } | |
923 | ||
924 | /* | |
925 | * copy the access control and default entries into the buffer | |
926 | */ | |
927 | memcpy(&acl_buf[0], &acc_acl->acl[0], | |
928 | acc_acl->count * sizeof(acl_buf[0])); | |
929 | ||
930 | memcpy(&acl_buf[acc_acl->count], &def_acl->acl[0], | |
931 | def_acl->count * sizeof(acl_buf[0])); | |
932 | ||
933 | /* | |
934 | * set the ACL_DEFAULT flag on the default entries | |
935 | */ | |
936 | for (i = acc_acl->count; i < acl_count; i++) { | |
937 | acl_buf[i].a_type |= ACL_DEFAULT; | |
938 | } | |
939 | ||
940 | sys_acl_free_acl(tmp_acl); | |
941 | ||
942 | } else if (type != SMB_ACL_TYPE_ACCESS) { | |
943 | errno = EINVAL; | |
944 | return -1; | |
945 | } | |
946 | ||
947 | ret = acl(name, SETACL, acl_count, acl_p); | |
948 | ||
949 | SAFE_FREE(acl_buf); | |
950 | ||
951 | return ret; | |
952 | } | |
953 | ||
954 | int sys_acl_set_fd(int fd, SMB_ACL_T acl_d) | |
955 | { | |
956 | if (acl_sort(acl_d) != 0) { | |
957 | return -1; | |
958 | } | |
959 | ||
960 | return facl(fd, SETACL, acl_d->count, &acl_d->acl[0]); | |
961 | } | |
962 | ||
963 | int sys_acl_delete_def_file(const char *path) | |
964 | { | |
965 | SMB_ACL_T acl_d; | |
966 | int ret; | |
967 | ||
968 | /* | |
969 | * fetching the access ACL and rewriting it has | |
970 | * the effect of deleting the default ACL | |
971 | */ | |
972 | if ((acl_d = sys_acl_get_file(path, SMB_ACL_TYPE_ACCESS)) == NULL) { | |
973 | return -1; | |
974 | } | |
975 | ||
976 | ret = acl(path, SETACL, acl_d->count, acl_d->acl); | |
977 | ||
978 | sys_acl_free_acl(acl_d); | |
979 | ||
980 | return ret; | |
981 | } | |
982 | ||
983 | int sys_acl_free_text(char *text) | |
984 | { | |
985 | SAFE_FREE(text); | |
986 | return 0; | |
987 | } | |
988 | ||
989 | int sys_acl_free_acl(SMB_ACL_T acl_d) | |
990 | { | |
991 | SAFE_FREE(acl_d); | |
992 | return 0; | |
993 | } | |
994 | ||
995 | int sys_acl_free_qualifier(UNUSED(void *qual), UNUSED(SMB_ACL_TAG_T tagtype)) | |
996 | { | |
997 | return 0; | |
998 | } | |
999 | ||
1000 | #elif defined(HAVE_HPUX_ACLS) | |
1001 | #include <dl.h> | |
1002 | ||
1003 | /* | |
1004 | * Based on the Solaris/SCO code - with modifications. | |
1005 | */ | |
1006 | ||
1007 | /* | |
1008 | * Note that while this code implements sufficient functionality | |
1009 | * to support the sys_acl_* interfaces it does not provide all | |
1010 | * of the semantics of the POSIX ACL interfaces. | |
1011 | * | |
1012 | * In particular, an ACL entry descriptor (SMB_ACL_ENTRY_T) returned | |
1013 | * from a call to sys_acl_get_entry() should not be assumed to be | |
1014 | * valid after calling any of the following functions, which may | |
1015 | * reorder the entries in the ACL. | |
1016 | * | |
1017 | * sys_acl_valid() | |
1018 | * sys_acl_set_file() | |
1019 | * sys_acl_set_fd() | |
1020 | */ | |
1021 | ||
1022 | /* This checks if the POSIX ACL system call is defined */ | |
1023 | /* which basically corresponds to whether JFS 3.3 or */ | |
1024 | /* higher is installed. If acl() was called when it */ | |
1025 | /* isn't defined, it causes the process to core dump */ | |
1026 | /* so it is important to check this and avoid acl() */ | |
1027 | /* calls if it isn't there. */ | |
1028 | ||
1029 | static BOOL hpux_acl_call_presence(void) | |
1030 | { | |
1031 | ||
1032 | shl_t handle = NULL; | |
1033 | void *value; | |
1034 | int ret_val=0; | |
1035 | static BOOL already_checked=0; | |
1036 | ||
1037 | if(already_checked) | |
1038 | return True; | |
1039 | ||
1040 | ||
1041 | ret_val = shl_findsym(&handle, "acl", TYPE_PROCEDURE, &value); | |
1042 | ||
1043 | if(ret_val != 0) { | |
1044 | DEBUG(5, ("hpux_acl_call_presence: shl_findsym() returned %d, errno = %d, error %s\n", | |
1045 | ret_val, errno, strerror(errno))); | |
1046 | DEBUG(5,("hpux_acl_call_presence: acl() system call is not present. Check if you have JFS 3.3 and above?\n")); | |
1047 | return False; | |
1048 | } | |
1049 | ||
1050 | DEBUG(10,("hpux_acl_call_presence: acl() system call is present. We have JFS 3.3 or above \n")); | |
1051 | ||
1052 | already_checked = True; | |
1053 | return True; | |
1054 | } | |
1055 | ||
1056 | int sys_acl_get_entry(SMB_ACL_T acl_d, int entry_id, SMB_ACL_ENTRY_T *entry_p) | |
1057 | { | |
1058 | if (entry_id != SMB_ACL_FIRST_ENTRY && entry_id != SMB_ACL_NEXT_ENTRY) { | |
1059 | errno = EINVAL; | |
1060 | return -1; | |
1061 | } | |
1062 | ||
1063 | if (entry_p == NULL) { | |
1064 | errno = EINVAL; | |
1065 | return -1; | |
1066 | } | |
1067 | ||
1068 | if (entry_id == SMB_ACL_FIRST_ENTRY) { | |
1069 | acl_d->next = 0; | |
1070 | } | |
1071 | ||
1072 | if (acl_d->next < 0) { | |
1073 | errno = EINVAL; | |
1074 | return -1; | |
1075 | } | |
1076 | ||
1077 | if (acl_d->next >= acl_d->count) { | |
1078 | return 0; | |
1079 | } | |
1080 | ||
1081 | *entry_p = &acl_d->acl[acl_d->next++]; | |
1082 | ||
1083 | return 1; | |
1084 | } | |
1085 | ||
1086 | int sys_acl_get_tag_type(SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *type_p) | |
1087 | { | |
1088 | *type_p = entry_d->a_type; | |
1089 | ||
1090 | return 0; | |
1091 | } | |
1092 | ||
1093 | int sys_acl_get_permset(SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p) | |
1094 | { | |
1095 | *permset_p = &entry_d->a_perm; | |
1096 | ||
1097 | return 0; | |
1098 | } | |
1099 | ||
1100 | void *sys_acl_get_qualifier(SMB_ACL_ENTRY_T entry_d) | |
1101 | { | |
1102 | if (entry_d->a_type != SMB_ACL_USER | |
1103 | && entry_d->a_type != SMB_ACL_GROUP) { | |
1104 | errno = EINVAL; | |
1105 | return NULL; | |
1106 | } | |
1107 | ||
1108 | return &entry_d->a_id; | |
1109 | } | |
1110 | ||
1111 | /* | |
1112 | * There is no way of knowing what size the ACL returned by | |
1113 | * ACL_GET will be unless you first call ACL_CNT which means | |
1114 | * making an additional system call. | |
1115 | * | |
1116 | * In the hope of avoiding the cost of the additional system | |
1117 | * call in most cases, we initially allocate enough space for | |
1118 | * an ACL with INITIAL_ACL_SIZE entries. If this turns out to | |
1119 | * be too small then we use ACL_CNT to find out the actual | |
1120 | * size, reallocate the ACL buffer, and then call ACL_GET again. | |
1121 | */ | |
1122 | ||
1123 | #define INITIAL_ACL_SIZE 16 | |
1124 | ||
1125 | SMB_ACL_T sys_acl_get_file(const char *path_p, SMB_ACL_TYPE_T type) | |
1126 | { | |
1127 | SMB_ACL_T acl_d; | |
1128 | int count; /* # of ACL entries allocated */ | |
1129 | int naccess; /* # of access ACL entries */ | |
1130 | int ndefault; /* # of default ACL entries */ | |
1131 | ||
1132 | if(hpux_acl_call_presence() == False) { | |
1133 | /* Looks like we don't have the acl() system call on HPUX. | |
1134 | * May be the system doesn't have the latest version of JFS. | |
1135 | */ | |
1136 | return NULL; | |
1137 | } | |
1138 | ||
1139 | if (type != SMB_ACL_TYPE_ACCESS && type != SMB_ACL_TYPE_DEFAULT) { | |
1140 | errno = EINVAL; | |
1141 | return NULL; | |
1142 | } | |
1143 | ||
1144 | count = INITIAL_ACL_SIZE; | |
1145 | if ((acl_d = sys_acl_init(count)) == NULL) { | |
1146 | return NULL; | |
1147 | } | |
1148 | ||
1149 | /* | |
1150 | * If there isn't enough space for the ACL entries we use | |
1151 | * ACL_CNT to determine the actual number of ACL entries | |
1152 | * reallocate and try again. This is in a loop because it | |
1153 | * is possible that someone else could modify the ACL and | |
1154 | * increase the number of entries between the call to | |
1155 | * ACL_CNT and the call to ACL_GET. | |
1156 | */ | |
1157 | while ((count = acl(path_p, ACL_GET, count, &acl_d->acl[0])) < 0 && errno == ENOSPC) { | |
1158 | ||
1159 | sys_acl_free_acl(acl_d); | |
1160 | ||
1161 | if ((count = acl(path_p, ACL_CNT, 0, NULL)) < 0) { | |
1162 | return NULL; | |
1163 | } | |
1164 | ||
1165 | if ((acl_d = sys_acl_init(count)) == NULL) { | |
1166 | return NULL; | |
1167 | } | |
1168 | } | |
1169 | ||
1170 | if (count < 0) { | |
1171 | sys_acl_free_acl(acl_d); | |
1172 | return NULL; | |
1173 | } | |
1174 | ||
1175 | /* | |
1176 | * calculate the number of access and default ACL entries | |
1177 | * | |
1178 | * Note: we assume that the acl() system call returned a | |
1179 | * well formed ACL which is sorted so that all of the | |
1180 | * access ACL entries preceed any default ACL entries | |
1181 | */ | |
1182 | for (naccess = 0; naccess < count; naccess++) { | |
1183 | if (acl_d->acl[naccess].a_type & ACL_DEFAULT) | |
1184 | break; | |
1185 | } | |
1186 | ndefault = count - naccess; | |
1187 | ||
1188 | /* | |
1189 | * if the caller wants the default ACL we have to copy | |
1190 | * the entries down to the start of the acl[] buffer | |
1191 | * and mask out the ACL_DEFAULT flag from the type field | |
1192 | */ | |
1193 | if (type == SMB_ACL_TYPE_DEFAULT) { | |
1194 | int i, j; | |
1195 | ||
1196 | for (i = 0, j = naccess; i < ndefault; i++, j++) { | |
1197 | acl_d->acl[i] = acl_d->acl[j]; | |
1198 | acl_d->acl[i].a_type &= ~ACL_DEFAULT; | |
1199 | } | |
1200 | ||
1201 | acl_d->count = ndefault; | |
1202 | } else { | |
1203 | acl_d->count = naccess; | |
1204 | } | |
1205 | ||
1206 | return acl_d; | |
1207 | } | |
1208 | ||
1209 | SMB_ACL_T sys_acl_get_fd(int fd) | |
1210 | { | |
1211 | /* | |
1212 | * HPUX doesn't have the facl call. Fake it using the path.... JRA. | |
1213 | */ | |
1214 | ||
1215 | files_struct *fsp = file_find_fd(fd); | |
1216 | ||
1217 | if (fsp == NULL) { | |
1218 | errno = EBADF; | |
1219 | return NULL; | |
1220 | } | |
1221 | ||
1222 | /* | |
1223 | * We know we're in the same conn context. So we | |
1224 | * can use the relative path. | |
1225 | */ | |
1226 | ||
1227 | return sys_acl_get_file(fsp->fsp_name, SMB_ACL_TYPE_ACCESS); | |
1228 | } | |
1229 | ||
1230 | int sys_acl_clear_perms(SMB_ACL_PERMSET_T permset_d) | |
1231 | { | |
1232 | *permset_d = 0; | |
1233 | ||
1234 | return 0; | |
1235 | } | |
1236 | ||
1237 | int sys_acl_add_perm(SMB_ACL_PERMSET_T permset_d, SMB_ACL_PERM_T perm) | |
1238 | { | |
1239 | if (perm != SMB_ACL_READ && perm != SMB_ACL_WRITE | |
1240 | && perm != SMB_ACL_EXECUTE) { | |
1241 | errno = EINVAL; | |
1242 | return -1; | |
1243 | } | |
1244 | ||
1245 | if (permset_d == NULL) { | |
1246 | errno = EINVAL; | |
1247 | return -1; | |
1248 | } | |
1249 | ||
1250 | *permset_d |= perm; | |
1251 | ||
1252 | return 0; | |
1253 | } | |
1254 | ||
1255 | int sys_acl_get_perm(SMB_ACL_PERMSET_T permset_d, SMB_ACL_PERM_T perm) | |
1256 | { | |
1257 | return *permset_d & perm; | |
1258 | } | |
1259 | ||
1260 | char *sys_acl_to_text(SMB_ACL_T acl_d, ssize_t *len_p) | |
1261 | { | |
1262 | int i; | |
1263 | int len, maxlen; | |
1264 | char *text; | |
1265 | ||
1266 | /* | |
1267 | * use an initial estimate of 20 bytes per ACL entry | |
1268 | * when allocating memory for the text representation | |
1269 | * of the ACL | |
1270 | */ | |
1271 | len = 0; | |
1272 | maxlen = 20 * acl_d->count; | |
1273 | if ((text = SMB_MALLOC(maxlen)) == NULL) { | |
1274 | errno = ENOMEM; | |
1275 | return NULL; | |
1276 | } | |
1277 | ||
1278 | for (i = 0; i < acl_d->count; i++) { | |
1279 | struct acl *ap = &acl_d->acl[i]; | |
1280 | struct group *gr; | |
1281 | char tagbuf[12]; | |
1282 | char idbuf[12]; | |
1283 | char *tag; | |
1284 | char *id = ""; | |
1285 | char perms[4]; | |
1286 | int nbytes; | |
1287 | ||
1288 | switch (ap->a_type) { | |
1289 | /* | |
1290 | * for debugging purposes it's probably more | |
1291 | * useful to dump unknown tag types rather | |
1292 | * than just returning an error | |
1293 | */ | |
1294 | default: | |
1295 | slprintf(tagbuf, sizeof(tagbuf)-1, "0x%x", | |
1296 | ap->a_type); | |
1297 | tag = tagbuf; | |
1298 | slprintf(idbuf, sizeof(idbuf)-1, "%ld", | |
1299 | (long)ap->a_id); | |
1300 | id = idbuf; | |
1301 | break; | |
1302 | ||
1303 | case SMB_ACL_USER: | |
1304 | id = uidtoname(ap->a_id); | |
1305 | case SMB_ACL_USER_OBJ: | |
1306 | tag = "user"; | |
1307 | break; | |
1308 | ||
1309 | case SMB_ACL_GROUP: | |
1310 | if ((gr = getgrgid(ap->a_id)) == NULL) { | |
1311 | slprintf(idbuf, sizeof(idbuf)-1, "%ld", | |
1312 | (long)ap->a_id); | |
1313 | id = idbuf; | |
1314 | } else { | |
1315 | id = gr->gr_name; | |
1316 | } | |
1317 | case SMB_ACL_GROUP_OBJ: | |
1318 | tag = "group"; | |
1319 | break; | |
1320 | ||
1321 | case SMB_ACL_OTHER: | |
1322 | tag = "other"; | |
1323 | break; | |
1324 | ||
1325 | case SMB_ACL_MASK: | |
1326 | tag = "mask"; | |
1327 | break; | |
1328 | ||
1329 | } | |
1330 | ||
1331 | perms[0] = (ap->a_perm & SMB_ACL_READ) ? 'r' : '-'; | |
1332 | perms[1] = (ap->a_perm & SMB_ACL_WRITE) ? 'w' : '-'; | |
1333 | perms[2] = (ap->a_perm & SMB_ACL_EXECUTE) ? 'x' : '-'; | |
1334 | perms[3] = '\0'; | |
1335 | ||
1336 | /* <tag> : <qualifier> : rwx \n \0 */ | |
1337 | nbytes = strlen(tag) + 1 + strlen(id) + 1 + 3 + 1 + 1; | |
1338 | ||
1339 | /* | |
1340 | * If this entry would overflow the buffer | |
1341 | * allocate enough additional memory for this | |
1342 | * entry and an estimate of another 20 bytes | |
1343 | * for each entry still to be processed | |
1344 | */ | |
1345 | if ((len + nbytes) > maxlen) { | |
1346 | char *oldtext = text; | |
1347 | ||
1348 | maxlen += nbytes + 20 * (acl_d->count - i); | |
1349 | ||
1350 | if ((text = SMB_REALLOC(oldtext, maxlen)) == NULL) { | |
1351 | free(oldtext); | |
1352 | errno = ENOMEM; | |
1353 | return NULL; | |
1354 | } | |
1355 | } | |
1356 | ||
1357 | slprintf(&text[len], nbytes-1, "%s:%s:%s\n", tag, id, perms); | |
1358 | len += nbytes - 1; | |
1359 | } | |
1360 | ||
1361 | if (len_p) | |
1362 | *len_p = len; | |
1363 | ||
1364 | return text; | |
1365 | } | |
1366 | ||
1367 | SMB_ACL_T sys_acl_init(int count) | |
1368 | { | |
1369 | SMB_ACL_T a; | |
1370 | ||
1371 | if (count < 0) { | |
1372 | errno = EINVAL; | |
1373 | return NULL; | |
1374 | } | |
1375 | ||
1376 | /* | |
1377 | * note that since the definition of the structure pointed | |
1378 | * to by the SMB_ACL_T includes the first element of the | |
1379 | * acl[] array, this actually allocates an ACL with room | |
1380 | * for (count+1) entries | |
1381 | */ | |
1382 | if ((a = SMB_MALLOC(sizeof(struct SMB_ACL_T) + count * sizeof(struct acl))) == NULL) { | |
1383 | errno = ENOMEM; | |
1384 | return NULL; | |
1385 | } | |
1386 | ||
1387 | a->size = count + 1; | |
1388 | a->count = 0; | |
1389 | a->next = -1; | |
1390 | ||
1391 | return a; | |
1392 | } | |
1393 | ||
1394 | ||
1395 | int sys_acl_create_entry(SMB_ACL_T *acl_p, SMB_ACL_ENTRY_T *entry_p) | |
1396 | { | |
1397 | SMB_ACL_T acl_d; | |
1398 | SMB_ACL_ENTRY_T entry_d; | |
1399 | ||
1400 | if (acl_p == NULL || entry_p == NULL || (acl_d = *acl_p) == NULL) { | |
1401 | errno = EINVAL; | |
1402 | return -1; | |
1403 | } | |
1404 | ||
1405 | if (acl_d->count >= acl_d->size) { | |
1406 | errno = ENOSPC; | |
1407 | return -1; | |
1408 | } | |
1409 | ||
1410 | entry_d = &acl_d->acl[acl_d->count++]; | |
1411 | entry_d->a_type = 0; | |
1412 | entry_d->a_id = -1; | |
1413 | entry_d->a_perm = 0; | |
1414 | *entry_p = entry_d; | |
1415 | ||
1416 | return 0; | |
1417 | } | |
1418 | ||
1419 | int sys_acl_set_tag_type(SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T tag_type) | |
1420 | { | |
1421 | switch (tag_type) { | |
1422 | case SMB_ACL_USER: | |
1423 | case SMB_ACL_USER_OBJ: | |
1424 | case SMB_ACL_GROUP: | |
1425 | case SMB_ACL_GROUP_OBJ: | |
1426 | case SMB_ACL_OTHER: | |
1427 | case SMB_ACL_MASK: | |
1428 | entry_d->a_type = tag_type; | |
1429 | break; | |
1430 | default: | |
1431 | errno = EINVAL; | |
1432 | return -1; | |
1433 | } | |
1434 | ||
1435 | return 0; | |
1436 | } | |
1437 | ||
1438 | int sys_acl_set_qualifier(SMB_ACL_ENTRY_T entry_d, void *qual_p) | |
1439 | { | |
1440 | if (entry_d->a_type != SMB_ACL_GROUP | |
1441 | && entry_d->a_type != SMB_ACL_USER) { | |
1442 | errno = EINVAL; | |
1443 | return -1; | |
1444 | } | |
1445 | ||
1446 | entry_d->a_id = *((id_t *)qual_p); | |
1447 | ||
1448 | return 0; | |
1449 | } | |
1450 | ||
1451 | int sys_acl_set_permset(SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T permset_d) | |
1452 | { | |
1453 | if (*permset_d & ~(SMB_ACL_READ|SMB_ACL_WRITE|SMB_ACL_EXECUTE)) { | |
1454 | return EINVAL; | |
1455 | } | |
1456 | ||
1457 | entry_d->a_perm = *permset_d; | |
1458 | ||
1459 | return 0; | |
1460 | } | |
1461 | ||
1462 | /* Structure to capture the count for each type of ACE. */ | |
1463 | ||
1464 | struct hpux_acl_types { | |
1465 | int n_user; | |
1466 | int n_def_user; | |
1467 | int n_user_obj; | |
1468 | int n_def_user_obj; | |
1469 | ||
1470 | int n_group; | |
1471 | int n_def_group; | |
1472 | int n_group_obj; | |
1473 | int n_def_group_obj; | |
1474 | ||
1475 | int n_other; | |
1476 | int n_other_obj; | |
1477 | int n_def_other_obj; | |
1478 | ||
1479 | int n_class_obj; | |
1480 | int n_def_class_obj; | |
1481 | ||
1482 | int n_illegal_obj; | |
1483 | }; | |
1484 | ||
1485 | /* count_obj: | |
1486 | * Counts the different number of objects in a given array of ACL | |
1487 | * structures. | |
1488 | * Inputs: | |
1489 | * | |
1490 | * acl_count - Count of ACLs in the array of ACL strucutres. | |
1491 | * aclp - Array of ACL structures. | |
1492 | * acl_type_count - Pointer to acl_types structure. Should already be | |
1493 | * allocated. | |
1494 | * Output: | |
1495 | * | |
1496 | * acl_type_count - This structure is filled up with counts of various | |
1497 | * acl types. | |
1498 | */ | |
1499 | ||
1500 | static int hpux_count_obj(int acl_count, struct acl *aclp, struct hpux_acl_types *acl_type_count) | |
1501 | { | |
1502 | int i; | |
1503 | ||
1504 | memset(acl_type_count, 0, sizeof(struct hpux_acl_types)); | |
1505 | ||
1506 | for(i=0;i<acl_count;i++) { | |
1507 | switch(aclp[i].a_type) { | |
1508 | case USER: | |
1509 | acl_type_count->n_user++; | |
1510 | break; | |
1511 | case USER_OBJ: | |
1512 | acl_type_count->n_user_obj++; | |
1513 | break; | |
1514 | case DEF_USER_OBJ: | |
1515 | acl_type_count->n_def_user_obj++; | |
1516 | break; | |
1517 | case GROUP: | |
1518 | acl_type_count->n_group++; | |
1519 | break; | |
1520 | case GROUP_OBJ: | |
1521 | acl_type_count->n_group_obj++; | |
1522 | break; | |
1523 | case DEF_GROUP_OBJ: | |
1524 | acl_type_count->n_def_group_obj++; | |
1525 | break; | |
1526 | case OTHER_OBJ: | |
1527 | acl_type_count->n_other_obj++; | |
1528 | break; | |
1529 | case DEF_OTHER_OBJ: | |
1530 | acl_type_count->n_def_other_obj++; | |
1531 | break; | |
1532 | case CLASS_OBJ: | |
1533 | acl_type_count->n_class_obj++; | |
1534 | break; | |
1535 | case DEF_CLASS_OBJ: | |
1536 | acl_type_count->n_def_class_obj++; | |
1537 | break; | |
1538 | case DEF_USER: | |
1539 | acl_type_count->n_def_user++; | |
1540 | break; | |
1541 | case DEF_GROUP: | |
1542 | acl_type_count->n_def_group++; | |
1543 | break; | |
1544 | default: | |
1545 | acl_type_count->n_illegal_obj++; | |
1546 | break; | |
1547 | } | |
1548 | } | |
1549 | } | |
1550 | ||
1551 | /* swap_acl_entries: Swaps two ACL entries. | |
1552 | * | |
1553 | * Inputs: aclp0, aclp1 - ACL entries to be swapped. | |
1554 | */ | |
1555 | ||
1556 | static void hpux_swap_acl_entries(struct acl *aclp0, struct acl *aclp1) | |
1557 | { | |
1558 | struct acl temp_acl; | |
1559 | ||
1560 | temp_acl.a_type = aclp0->a_type; | |
1561 | temp_acl.a_id = aclp0->a_id; | |
1562 | temp_acl.a_perm = aclp0->a_perm; | |
1563 | ||
1564 | aclp0->a_type = aclp1->a_type; | |
1565 | aclp0->a_id = aclp1->a_id; | |
1566 | aclp0->a_perm = aclp1->a_perm; | |
1567 | ||
1568 | aclp1->a_type = temp_acl.a_type; | |
1569 | aclp1->a_id = temp_acl.a_id; | |
1570 | aclp1->a_perm = temp_acl.a_perm; | |
1571 | } | |
1572 | ||
1573 | /* prohibited_duplicate_type | |
1574 | * Identifies if given ACL type can have duplicate entries or | |
1575 | * not. | |
1576 | * | |
1577 | * Inputs: acl_type - ACL Type. | |
1578 | * | |
1579 | * Outputs: | |
1580 | * | |
1581 | * Return.. | |
1582 | * | |
1583 | * True - If the ACL type matches any of the prohibited types. | |
1584 | * False - If the ACL type doesn't match any of the prohibited types. | |
1585 | */ | |
1586 | ||
1587 | static BOOL hpux_prohibited_duplicate_type(int acl_type) | |
1588 | { | |
1589 | switch(acl_type) { | |
1590 | case USER: | |
1591 | case GROUP: | |
1592 | case DEF_USER: | |
1593 | case DEF_GROUP: | |
1594 | return True; | |
1595 | default: | |
1596 | return False; | |
1597 | } | |
1598 | } | |
1599 | ||
1600 | /* get_needed_class_perm | |
1601 | * Returns the permissions of a ACL structure only if the ACL | |
1602 | * type matches one of the pre-determined types for computing | |
1603 | * CLASS_OBJ permissions. | |
1604 | * | |
1605 | * Inputs: aclp - Pointer to ACL structure. | |
1606 | */ | |
1607 | ||
1608 | static int hpux_get_needed_class_perm(struct acl *aclp) | |
1609 | { | |
1610 | switch(aclp->a_type) { | |
1611 | case USER: | |
1612 | case GROUP_OBJ: | |
1613 | case GROUP: | |
1614 | case DEF_USER_OBJ: | |
1615 | case DEF_USER: | |
1616 | case DEF_GROUP_OBJ: | |
1617 | case DEF_GROUP: | |
1618 | case DEF_CLASS_OBJ: | |
1619 | case DEF_OTHER_OBJ: | |
1620 | return aclp->a_perm; | |
1621 | default: | |
1622 | return 0; | |
1623 | } | |
1624 | } | |
1625 | ||
1626 | /* acl_sort for HPUX. | |
1627 | * Sorts the array of ACL structures as per the description in | |
1628 | * aclsort man page. Refer to aclsort man page for more details | |
1629 | * | |
1630 | * Inputs: | |
1631 | * | |
1632 | * acl_count - Count of ACLs in the array of ACL structures. | |
1633 | * calclass - If this is not zero, then we compute the CLASS_OBJ | |
1634 | * permissions. | |
1635 | * aclp - Array of ACL structures. | |
1636 | * | |
1637 | * Outputs: | |
1638 | * | |
1639 | * aclp - Sorted array of ACL structures. | |
1640 | * | |
1641 | * Outputs: | |
1642 | * | |
1643 | * Returns 0 for success -1 for failure. Prints a message to the Samba | |
1644 | * debug log in case of failure. | |
1645 | */ | |
1646 | ||
1647 | static int hpux_acl_sort(int acl_count, int calclass, struct acl *aclp) | |
1648 | { | |
1649 | #if !defined(HAVE_HPUX_ACLSORT) | |
1650 | /* | |
1651 | * The aclsort() system call is availabe on the latest HPUX General | |
1652 | * Patch Bundles. So for HPUX, we developed our version of acl_sort | |
1653 | * function. Because, we don't want to update to a new | |
1654 | * HPUX GR bundle just for aclsort() call. | |
1655 | */ | |
1656 | ||
1657 | struct hpux_acl_types acl_obj_count; | |
1658 | int n_class_obj_perm = 0; | |
1659 | int i, j; | |
1660 | ||
1661 | if(!acl_count) { | |
1662 | DEBUG(10,("Zero acl count passed. Returning Success\n")); | |
1663 | return 0; | |
1664 | } | |
1665 | ||
1666 | if(aclp == NULL) { | |
1667 | DEBUG(0,("Null ACL pointer in hpux_acl_sort. Returning Failure. \n")); | |
1668 | return -1; | |
1669 | } | |
1670 | ||
1671 | /* Count different types of ACLs in the ACLs array */ | |
1672 | ||
1673 | hpux_count_obj(acl_count, aclp, &acl_obj_count); | |
1674 | ||
1675 | /* There should be only one entry each of type USER_OBJ, GROUP_OBJ, | |
1676 | * CLASS_OBJ and OTHER_OBJ | |
1677 | */ | |
1678 | ||
1679 | if( (acl_obj_count.n_user_obj != 1) || | |
1680 | (acl_obj_count.n_group_obj != 1) || | |
1681 | (acl_obj_count.n_class_obj != 1) || | |
1682 | (acl_obj_count.n_other_obj != 1) | |
1683 | ) { | |
1684 | DEBUG(0,("hpux_acl_sort: More than one entry or no entries for \ | |
1685 | USER OBJ or GROUP_OBJ or OTHER_OBJ or CLASS_OBJ\n")); | |
1686 | return -1; | |
1687 | } | |
1688 | ||
1689 | /* If any of the default objects are present, there should be only | |
1690 | * one of them each. | |
1691 | */ | |
1692 | ||
1693 | if( (acl_obj_count.n_def_user_obj > 1) || (acl_obj_count.n_def_group_obj > 1) || | |
1694 | (acl_obj_count.n_def_other_obj > 1) || (acl_obj_count.n_def_class_obj > 1) ) { | |
1695 | DEBUG(0,("hpux_acl_sort: More than one entry for DEF_CLASS_OBJ \ | |
1696 | or DEF_USER_OBJ or DEF_GROUP_OBJ or DEF_OTHER_OBJ\n")); | |
1697 | return -1; | |
1698 | } | |
1699 | ||
1700 | /* We now have proper number of OBJ and DEF_OBJ entries. Now sort the acl | |
1701 | * structures. | |
1702 | * | |
1703 | * Sorting crieteria - First sort by ACL type. If there are multiple entries of | |
1704 | * same ACL type, sort by ACL id. | |
1705 | * | |
1706 | * I am using the trival kind of sorting method here because, performance isn't | |
1707 | * really effected by the ACLs feature. More over there aren't going to be more | |
1708 | * than 17 entries on HPUX. | |
1709 | */ | |
1710 | ||
1711 | for(i=0; i<acl_count;i++) { | |
1712 | for (j=i+1; j<acl_count; j++) { | |
1713 | if( aclp[i].a_type > aclp[j].a_type ) { | |
1714 | /* ACL entries out of order, swap them */ | |
1715 | ||
1716 | hpux_swap_acl_entries((aclp+i), (aclp+j)); | |
1717 | ||
1718 | } else if ( aclp[i].a_type == aclp[j].a_type ) { | |
1719 | ||
1720 | /* ACL entries of same type, sort by id */ | |
1721 | ||
1722 | if(aclp[i].a_id > aclp[j].a_id) { | |
1723 | hpux_swap_acl_entries((aclp+i), (aclp+j)); | |
1724 | } else if (aclp[i].a_id == aclp[j].a_id) { | |
1725 | /* We have a duplicate entry. */ | |
1726 | if(hpux_prohibited_duplicate_type(aclp[i].a_type)) { | |
1727 | DEBUG(0, ("hpux_acl_sort: Duplicate entry: Type(hex): %x Id: %d\n", | |
1728 | aclp[i].a_type, aclp[i].a_id)); | |
1729 | return -1; | |
1730 | } | |
1731 | } | |
1732 | ||
1733 | } | |
1734 | } | |
1735 | } | |
1736 | ||
1737 | /* set the class obj permissions to the computed one. */ | |
1738 | if(calclass) { | |
1739 | int n_class_obj_index = -1; | |
1740 | ||
1741 | for(i=0;i<acl_count;i++) { | |
1742 | n_class_obj_perm |= hpux_get_needed_class_perm((aclp+i)); | |
1743 | ||
1744 | if(aclp[i].a_type == CLASS_OBJ) | |
1745 | n_class_obj_index = i; | |
1746 | } | |
1747 | aclp[n_class_obj_index].a_perm = n_class_obj_perm; | |
1748 | } | |
1749 | ||
1750 | return 0; | |
1751 | #else | |
1752 | return aclsort(acl_count, calclass, aclp); | |
1753 | #endif | |
1754 | } | |
1755 | ||
1756 | /* | |
1757 | * sort the ACL and check it for validity | |
1758 | * | |
1759 | * if it's a minimal ACL with only 4 entries then we | |
1760 | * need to recalculate the mask permissions to make | |
1761 | * sure that they are the same as the GROUP_OBJ | |
1762 | * permissions as required by the UnixWare acl() system call. | |
1763 | * | |
1764 | * (note: since POSIX allows minimal ACLs which only contain | |
1765 | * 3 entries - ie there is no mask entry - we should, in theory, | |
1766 | * check for this and add a mask entry if necessary - however | |
1767 | * we "know" that the caller of this interface always specifies | |
1768 | * a mask so, in practice "this never happens" (tm) - if it *does* | |
1769 | * happen aclsort() will fail and return an error and someone will | |
1770 | * have to fix it ...) | |
1771 | */ | |
1772 | ||
1773 | static int acl_sort(SMB_ACL_T acl_d) | |
1774 | { | |
1775 | int fixmask = (acl_d->count <= 4); | |
1776 | ||
1777 | if (hpux_acl_sort(acl_d->count, fixmask, acl_d->acl) != 0) { | |
1778 | errno = EINVAL; | |
1779 | return -1; | |
1780 | } | |
1781 | return 0; | |
1782 | } | |
1783 | ||
1784 | int sys_acl_valid(SMB_ACL_T acl_d) | |
1785 | { | |
1786 | return acl_sort(acl_d); | |
1787 | } | |
1788 | ||
1789 | int sys_acl_set_file(const char *name, SMB_ACL_TYPE_T type, SMB_ACL_T acl_d) | |
1790 | { | |
1791 | struct stat s; | |
1792 | struct acl *acl_p; | |
1793 | int acl_count; | |
1794 | struct acl *acl_buf = NULL; | |
1795 | int ret; | |
1796 | ||
1797 | if(hpux_acl_call_presence() == False) { | |
1798 | /* Looks like we don't have the acl() system call on HPUX. | |
1799 | * May be the system doesn't have the latest version of JFS. | |
1800 | */ | |
1801 | errno=ENOSYS; | |
1802 | return -1; | |
1803 | } | |
1804 | ||
1805 | if (type != SMB_ACL_TYPE_ACCESS && type != SMB_ACL_TYPE_DEFAULT) { | |
1806 | errno = EINVAL; | |
1807 | return -1; | |
1808 | } | |
1809 | ||
1810 | if (acl_sort(acl_d) != 0) { | |
1811 | return -1; | |
1812 | } | |
1813 | ||
1814 | acl_p = &acl_d->acl[0]; | |
1815 | acl_count = acl_d->count; | |
1816 | ||
1817 | /* | |
1818 | * if it's a directory there is extra work to do | |
1819 | * since the acl() system call will replace both | |
1820 | * the access ACLs and the default ACLs (if any) | |
1821 | */ | |
1822 | if (stat(name, &s) != 0) { | |
1823 | return -1; | |
1824 | } | |
1825 | if (S_ISDIR(s.st_mode)) { | |
1826 | SMB_ACL_T acc_acl; | |
1827 | SMB_ACL_T def_acl; | |
1828 | SMB_ACL_T tmp_acl; | |
1829 | int i; | |
1830 | ||
1831 | if (type == SMB_ACL_TYPE_ACCESS) { | |
1832 | acc_acl = acl_d; | |
1833 | def_acl = tmp_acl = sys_acl_get_file(name, SMB_ACL_TYPE_DEFAULT); | |
1834 | ||
1835 | } else { | |
1836 | def_acl = acl_d; | |
1837 | acc_acl = tmp_acl = sys_acl_get_file(name, SMB_ACL_TYPE_ACCESS); | |
1838 | } | |
1839 | ||
1840 | if (tmp_acl == NULL) { | |
1841 | return -1; | |
1842 | } | |
1843 | ||
1844 | /* | |
1845 | * allocate a temporary buffer for the complete ACL | |
1846 | */ | |
1847 | acl_count = acc_acl->count + def_acl->count; | |
1848 | acl_p = acl_buf = SMB_MALLOC_ARRAY(struct acl, acl_count); | |
1849 | ||
1850 | if (acl_buf == NULL) { | |
1851 | sys_acl_free_acl(tmp_acl); | |
1852 | errno = ENOMEM; | |
1853 | return -1; | |
1854 | } | |
1855 | ||
1856 | /* | |
1857 | * copy the access control and default entries into the buffer | |
1858 | */ | |
1859 | memcpy(&acl_buf[0], &acc_acl->acl[0], | |
1860 | acc_acl->count * sizeof(acl_buf[0])); | |
1861 | ||
1862 | memcpy(&acl_buf[acc_acl->count], &def_acl->acl[0], | |
1863 | def_acl->count * sizeof(acl_buf[0])); | |
1864 | ||
1865 | /* | |
1866 | * set the ACL_DEFAULT flag on the default entries | |
1867 | */ | |
1868 | for (i = acc_acl->count; i < acl_count; i++) { | |
1869 | acl_buf[i].a_type |= ACL_DEFAULT; | |
1870 | } | |
1871 | ||
1872 | sys_acl_free_acl(tmp_acl); | |
1873 | ||
1874 | } else if (type != SMB_ACL_TYPE_ACCESS) { | |
1875 | errno = EINVAL; | |
1876 | return -1; | |
1877 | } | |
1878 | ||
1879 | ret = acl(name, ACL_SET, acl_count, acl_p); | |
1880 | ||
1881 | if (acl_buf) { | |
1882 | free(acl_buf); | |
1883 | } | |
1884 | ||
1885 | return ret; | |
1886 | } | |
1887 | ||
1888 | int sys_acl_set_fd(int fd, SMB_ACL_T acl_d) | |
1889 | { | |
1890 | /* | |
1891 | * HPUX doesn't have the facl call. Fake it using the path.... JRA. | |
1892 | */ | |
1893 | ||
1894 | files_struct *fsp = file_find_fd(fd); | |
1895 | ||
1896 | if (fsp == NULL) { | |
1897 | errno = EBADF; | |
1898 | return NULL; | |
1899 | } | |
1900 | ||
1901 | if (acl_sort(acl_d) != 0) { | |
1902 | return -1; | |
1903 | } | |
1904 | ||
1905 | /* | |
1906 | * We know we're in the same conn context. So we | |
1907 | * can use the relative path. | |
1908 | */ | |
1909 | ||
1910 | return sys_acl_set_file(fsp->fsp_name, SMB_ACL_TYPE_ACCESS, acl_d); | |
1911 | } | |
1912 | ||
1913 | int sys_acl_delete_def_file(const char *path) | |
1914 | { | |
1915 | SMB_ACL_T acl_d; | |
1916 | int ret; | |
1917 | ||
1918 | /* | |
1919 | * fetching the access ACL and rewriting it has | |
1920 | * the effect of deleting the default ACL | |
1921 | */ | |
1922 | if ((acl_d = sys_acl_get_file(path, SMB_ACL_TYPE_ACCESS)) == NULL) { | |
1923 | return -1; | |
1924 | } | |
1925 | ||
1926 | ret = acl(path, ACL_SET, acl_d->count, acl_d->acl); | |
1927 | ||
1928 | sys_acl_free_acl(acl_d); | |
1929 | ||
1930 | return ret; | |
1931 | } | |
1932 | ||
1933 | int sys_acl_free_text(char *text) | |
1934 | { | |
1935 | free(text); | |
1936 | return 0; | |
1937 | } | |
1938 | ||
1939 | int sys_acl_free_acl(SMB_ACL_T acl_d) | |
1940 | { | |
1941 | free(acl_d); | |
1942 | return 0; | |
1943 | } | |
1944 | ||
1945 | int sys_acl_free_qualifier(void *qual, SMB_ACL_TAG_T tagtype) | |
1946 | { | |
1947 | return 0; | |
1948 | } | |
1949 | ||
1950 | #elif defined(HAVE_IRIX_ACLS) | |
1951 | ||
1952 | int sys_acl_get_entry(SMB_ACL_T acl_d, int entry_id, SMB_ACL_ENTRY_T *entry_p) | |
1953 | { | |
1954 | if (entry_id != SMB_ACL_FIRST_ENTRY && entry_id != SMB_ACL_NEXT_ENTRY) { | |
1955 | errno = EINVAL; | |
1956 | return -1; | |
1957 | } | |
1958 | ||
1959 | if (entry_p == NULL) { | |
1960 | errno = EINVAL; | |
1961 | return -1; | |
1962 | } | |
1963 | ||
1964 | if (entry_id == SMB_ACL_FIRST_ENTRY) { | |
1965 | acl_d->next = 0; | |
1966 | } | |
1967 | ||
1968 | if (acl_d->next < 0) { | |
1969 | errno = EINVAL; | |
1970 | return -1; | |
1971 | } | |
1972 | ||
1973 | if (acl_d->next >= acl_d->aclp->acl_cnt) { | |
1974 | return 0; | |
1975 | } | |
1976 | ||
1977 | *entry_p = &acl_d->aclp->acl_entry[acl_d->next++]; | |
1978 | ||
1979 | return 1; | |
1980 | } | |
1981 | ||
1982 | int sys_acl_get_tag_type(SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *type_p) | |
1983 | { | |
1984 | *type_p = entry_d->ae_tag; | |
1985 | ||
1986 | return 0; | |
1987 | } | |
1988 | ||
1989 | int sys_acl_get_permset(SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p) | |
1990 | { | |
1991 | *permset_p = entry_d; | |
1992 | ||
1993 | return 0; | |
1994 | } | |
1995 | ||
1996 | void *sys_acl_get_qualifier(SMB_ACL_ENTRY_T entry_d) | |
1997 | { | |
1998 | if (entry_d->ae_tag != SMB_ACL_USER | |
1999 | && entry_d->ae_tag != SMB_ACL_GROUP) { | |
2000 | errno = EINVAL; | |
2001 | return NULL; | |
2002 | } | |
2003 | ||
2004 | return &entry_d->ae_id; | |
2005 | } | |
2006 | ||
2007 | SMB_ACL_T sys_acl_get_file(const char *path_p, SMB_ACL_TYPE_T type) | |
2008 | { | |
2009 | SMB_ACL_T a; | |
2010 | ||
2011 | if ((a = SMB_MALLOC_P(struct SMB_ACL_T)) == NULL) { | |
2012 | errno = ENOMEM; | |
2013 | return NULL; | |
2014 | } | |
2015 | if ((a->aclp = acl_get_file(path_p, type)) == NULL) { | |
2016 | SAFE_FREE(a); | |
2017 | return NULL; | |
2018 | } | |
2019 | a->next = -1; | |
2020 | a->freeaclp = True; | |
2021 | return a; | |
2022 | } | |
2023 | ||
2024 | SMB_ACL_T sys_acl_get_fd(int fd) | |
2025 | { | |
2026 | SMB_ACL_T a; | |
2027 | ||
2028 | if ((a = SMB_MALLOC_P(struct SMB_ACL_T)) == NULL) { | |
2029 | errno = ENOMEM; | |
2030 | return NULL; | |
2031 | } | |
2032 | if ((a->aclp = acl_get_fd(fd)) == NULL) { | |
2033 | SAFE_FREE(a); | |
2034 | return NULL; | |
2035 | } | |
2036 | a->next = -1; | |
2037 | a->freeaclp = True; | |
2038 | return a; | |
2039 | } | |
2040 | ||
2041 | int sys_acl_clear_perms(SMB_ACL_PERMSET_T permset_d) | |
2042 | { | |
2043 | permset_d->ae_perm = 0; | |
2044 | ||
2045 | return 0; | |
2046 | } | |
2047 | ||
2048 | int sys_acl_add_perm(SMB_ACL_PERMSET_T permset_d, SMB_ACL_PERM_T perm) | |
2049 | { | |
2050 | if (perm != SMB_ACL_READ && perm != SMB_ACL_WRITE | |
2051 | && perm != SMB_ACL_EXECUTE) { | |
2052 | errno = EINVAL; | |
2053 | return -1; | |
2054 | } | |
2055 | ||
2056 | if (permset_d == NULL) { | |
2057 | errno = EINVAL; | |
2058 | return -1; | |
2059 | } | |
2060 | ||
2061 | permset_d->ae_perm |= perm; | |
2062 | ||
2063 | return 0; | |
2064 | } | |
2065 | ||
2066 | int sys_acl_get_perm(SMB_ACL_PERMSET_T permset_d, SMB_ACL_PERM_T perm) | |
2067 | { | |
2068 | return permset_d->ae_perm & perm; | |
2069 | } | |
2070 | ||
2071 | char *sys_acl_to_text(SMB_ACL_T acl_d, ssize_t *len_p) | |
2072 | { | |
2073 | return acl_to_text(acl_d->aclp, len_p); | |
2074 | } | |
2075 | ||
2076 | SMB_ACL_T sys_acl_init(int count) | |
2077 | { | |
2078 | SMB_ACL_T a; | |
2079 | ||
2080 | if (count < 0) { | |
2081 | errno = EINVAL; | |
2082 | return NULL; | |
2083 | } | |
2084 | ||
2085 | if ((a = SMB_MALLOC(sizeof(struct SMB_ACL_T) + sizeof(struct acl))) == NULL) { | |
2086 | errno = ENOMEM; | |
2087 | return NULL; | |
2088 | } | |
2089 | ||
2090 | a->next = -1; | |
2091 | a->freeaclp = False; | |
2092 | a->aclp = (struct acl *)(&a->aclp + sizeof(struct acl *)); | |
2093 | a->aclp->acl_cnt = 0; | |
2094 | ||
2095 | return a; | |
2096 | } | |
2097 | ||
2098 | ||
2099 | int sys_acl_create_entry(SMB_ACL_T *acl_p, SMB_ACL_ENTRY_T *entry_p) | |
2100 | { | |
2101 | SMB_ACL_T acl_d; | |
2102 | SMB_ACL_ENTRY_T entry_d; | |
2103 | ||
2104 | if (acl_p == NULL || entry_p == NULL || (acl_d = *acl_p) == NULL) { | |
2105 | errno = EINVAL; | |
2106 | return -1; | |
2107 | } | |
2108 | ||
2109 | if (acl_d->aclp->acl_cnt >= ACL_MAX_ENTRIES) { | |
2110 | errno = ENOSPC; | |
2111 | return -1; | |
2112 | } | |
2113 | ||
2114 | entry_d = &acl_d->aclp->acl_entry[acl_d->aclp->acl_cnt++]; | |
2115 | entry_d->ae_tag = 0; | |
2116 | entry_d->ae_id = 0; | |
2117 | entry_d->ae_perm = 0; | |
2118 | *entry_p = entry_d; | |
2119 | ||
2120 | return 0; | |
2121 | } | |
2122 | ||
2123 | int sys_acl_set_tag_type(SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T tag_type) | |
2124 | { | |
2125 | switch (tag_type) { | |
2126 | case SMB_ACL_USER: | |
2127 | case SMB_ACL_USER_OBJ: | |
2128 | case SMB_ACL_GROUP: | |
2129 | case SMB_ACL_GROUP_OBJ: | |
2130 | case SMB_ACL_OTHER: | |
2131 | case SMB_ACL_MASK: | |
2132 | entry_d->ae_tag = tag_type; | |
2133 | break; | |
2134 | default: | |
2135 | errno = EINVAL; | |
2136 | return -1; | |
2137 | } | |
2138 | ||
2139 | return 0; | |
2140 | } | |
2141 | ||
2142 | int sys_acl_set_qualifier(SMB_ACL_ENTRY_T entry_d, void *qual_p) | |
2143 | { | |
2144 | if (entry_d->ae_tag != SMB_ACL_GROUP | |
2145 | && entry_d->ae_tag != SMB_ACL_USER) { | |
2146 | errno = EINVAL; | |
2147 | return -1; | |
2148 | } | |
2149 | ||
2150 | entry_d->ae_id = *((id_t *)qual_p); | |
2151 | ||
2152 | return 0; | |
2153 | } | |
2154 | ||
2155 | int sys_acl_set_permset(SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T permset_d) | |
2156 | { | |
2157 | if (permset_d->ae_perm & ~(SMB_ACL_READ|SMB_ACL_WRITE|SMB_ACL_EXECUTE)) { | |
2158 | return EINVAL; | |
2159 | } | |
2160 | ||
2161 | entry_d->ae_perm = permset_d->ae_perm; | |
2162 | ||
2163 | return 0; | |
2164 | } | |
2165 | ||
2166 | int sys_acl_valid(SMB_ACL_T acl_d) | |
2167 | { | |
2168 | return acl_valid(acl_d->aclp); | |
2169 | } | |
2170 | ||
2171 | int sys_acl_set_file(const char *name, SMB_ACL_TYPE_T type, SMB_ACL_T acl_d) | |
2172 | { | |
2173 | return acl_set_file(name, type, acl_d->aclp); | |
2174 | } | |
2175 | ||
2176 | int sys_acl_set_fd(int fd, SMB_ACL_T acl_d) | |
2177 | { | |
2178 | return acl_set_fd(fd, acl_d->aclp); | |
2179 | } | |
2180 | ||
2181 | int sys_acl_delete_def_file(const char *name) | |
2182 | { | |
2183 | return acl_delete_def_file(name); | |
2184 | } | |
2185 | ||
2186 | int sys_acl_free_text(char *text) | |
2187 | { | |
2188 | return acl_free(text); | |
2189 | } | |
2190 | ||
2191 | int sys_acl_free_acl(SMB_ACL_T acl_d) | |
2192 | { | |
2193 | if (acl_d->freeaclp) { | |
2194 | acl_free(acl_d->aclp); | |
2195 | } | |
2196 | acl_free(acl_d); | |
2197 | return 0; | |
2198 | } | |
2199 | ||
2200 | int sys_acl_free_qualifier(void *qual, SMB_ACL_TAG_T tagtype) | |
2201 | { | |
2202 | return 0; | |
2203 | } | |
2204 | ||
2205 | #elif defined(HAVE_AIX_ACLS) | |
2206 | ||
2207 | /* Donated by Medha Date, mdate@austin.ibm.com, for IBM */ | |
2208 | ||
2209 | int sys_acl_get_entry( SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p) | |
2210 | { | |
2211 | struct acl_entry_link *link; | |
2212 | struct new_acl_entry *entry; | |
2213 | int keep_going; | |
2214 | ||
2215 | DEBUG(10,("This is the count: %d\n",theacl->count)); | |
2216 | ||
2217 | /* Check if count was previously set to -1. * | |
2218 | * If it was, that means we reached the end * | |
2219 | * of the acl last time. */ | |
2220 | if(theacl->count == -1) | |
2221 | return(0); | |
2222 | ||
2223 | link = theacl; | |
2224 | /* To get to the next acl, traverse linked list until index * | |
2225 | * of acl matches the count we are keeping. This count is * | |
2226 | * incremented each time we return an acl entry. */ | |
2227 | ||
2228 | for(keep_going = 0; keep_going < theacl->count; keep_going++) | |
2229 | link = link->nextp; | |
2230 | ||
2231 | entry = *entry_p = link->entryp; | |
2232 | ||
2233 | DEBUG(10,("*entry_p is %d\n",entry_p)); | |
2234 | DEBUG(10,("*entry_p->ace_access is %d\n",entry->ace_access)); | |
2235 | ||
2236 | /* Increment count */ | |
2237 | theacl->count++; | |
2238 | if(link->nextp == NULL) | |
2239 | theacl->count = -1; | |
2240 | ||
2241 | return(1); | |
2242 | } | |
2243 | ||
2244 | int sys_acl_get_tag_type( SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p) | |
2245 | { | |
2246 | /* Initialize tag type */ | |
2247 | ||
2248 | *tag_type_p = -1; | |
2249 | DEBUG(10,("the tagtype is %d\n",entry_d->ace_id->id_type)); | |
2250 | ||
2251 | /* Depending on what type of entry we have, * | |
2252 | * return tag type. */ | |
2253 | switch(entry_d->ace_id->id_type) { | |
2254 | case ACEID_USER: | |
2255 | *tag_type_p = SMB_ACL_USER; | |
2256 | break; | |
2257 | case ACEID_GROUP: | |
2258 | *tag_type_p = SMB_ACL_GROUP; | |
2259 | break; | |
2260 | ||
2261 | case SMB_ACL_USER_OBJ: | |
2262 | case SMB_ACL_GROUP_OBJ: | |
2263 | case SMB_ACL_OTHER: | |
2264 | *tag_type_p = entry_d->ace_id->id_type; | |
2265 | break; | |
2266 | ||
2267 | default: | |
2268 | return(-1); | |
2269 | } | |
2270 | ||
2271 | return(0); | |
2272 | } | |
2273 | ||
2274 | int sys_acl_get_permset( SMB_ACL_ENTRY_T entry_d, SMB_ACL_PERMSET_T *permset_p) | |
2275 | { | |
2276 | DEBUG(10,("Starting AIX sys_acl_get_permset\n")); | |
2277 | *permset_p = &entry_d->ace_access; | |
2278 | DEBUG(10,("**permset_p is %d\n",**permset_p)); | |
2279 | if(!(**permset_p & S_IXUSR) && | |
2280 | !(**permset_p & S_IWUSR) && | |
2281 | !(**permset_p & S_IRUSR) && | |
2282 | (**permset_p != 0)) | |
2283 | return(-1); | |
2284 | ||
2285 | DEBUG(10,("Ending AIX sys_acl_get_permset\n")); | |
2286 | return(0); | |
2287 | } | |
2288 | ||
2289 | void *sys_acl_get_qualifier( SMB_ACL_ENTRY_T entry_d) | |
2290 | { | |
2291 | return(entry_d->ace_id->id_data); | |
2292 | } | |
2293 | ||
2294 | SMB_ACL_T sys_acl_get_file( const char *path_p, SMB_ACL_TYPE_T type) | |
2295 | { | |
2296 | struct acl *file_acl = (struct acl *)NULL; | |
2297 | struct acl_entry *acl_entry; | |
2298 | struct new_acl_entry *new_acl_entry; | |
2299 | struct ace_id *idp; | |
2300 | struct acl_entry_link *acl_entry_link; | |
2301 | struct acl_entry_link *acl_entry_link_head; | |
2302 | int i; | |
2303 | int rc = 0; | |
2304 | uid_t user_id; | |
2305 | ||
2306 | /* AIX has no DEFAULT */ | |
2307 | if ( type == SMB_ACL_TYPE_DEFAULT ) { | |
2308 | errno = ENOTSUP; | |
2309 | return NULL; | |
2310 | } | |
2311 | ||
2312 | /* Get the acl using statacl */ | |
2313 | ||
2314 | DEBUG(10,("Entering sys_acl_get_file\n")); | |
2315 | DEBUG(10,("path_p is %s\n",path_p)); | |
2316 | ||
2317 | file_acl = (struct acl *)SMB_MALLOC(BUFSIZ); | |
2318 | ||
2319 | if(file_acl == NULL) { | |
2320 | errno=ENOMEM; | |
2321 | DEBUG(0,("Error in AIX sys_acl_get_file: %d\n",errno)); | |
2322 | return(NULL); | |
2323 | } | |
2324 | ||
2325 | memset(file_acl,0,BUFSIZ); | |
2326 | ||
2327 | rc = statacl((char *)path_p,0,file_acl,BUFSIZ); | |
2328 | if(rc == -1) { | |
2329 | DEBUG(0,("statacl returned %d with errno %d\n",rc,errno)); | |
2330 | SAFE_FREE(file_acl); | |
2331 | return(NULL); | |
2332 | } | |
2333 | ||
2334 | DEBUG(10,("Got facl and returned it\n")); | |
2335 | ||
2336 | /* Point to the first acl entry in the acl */ | |
2337 | acl_entry = file_acl->acl_ext; | |
2338 | ||
2339 | /* Begin setting up the head of the linked list * | |
2340 | * that will be used for the storing the acl * | |
2341 | * in a way that is useful for the posix_acls.c * | |
2342 | * code. */ | |
2343 | ||
2344 | acl_entry_link_head = acl_entry_link = sys_acl_init(0); | |
2345 | if(acl_entry_link_head == NULL) | |
2346 | return(NULL); | |
2347 | ||
2348 | acl_entry_link->entryp = SMB_MALLOC_P(struct new_acl_entry); | |
2349 | if(acl_entry_link->entryp == NULL) { | |
2350 | SAFE_FREE(file_acl); | |
2351 | errno = ENOMEM; | |
2352 | DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno)); | |
2353 | return(NULL); | |
2354 | } | |
2355 | ||
2356 | DEBUG(10,("acl_entry is %d\n",acl_entry)); | |
2357 | DEBUG(10,("acl_last(file_acl) id %d\n",acl_last(file_acl))); | |
2358 | ||
2359 | /* Check if the extended acl bit is on. * | |
2360 | * If it isn't, do not show the * | |
2361 | * contents of the acl since AIX intends * | |
2362 | * the extended info to remain unused */ | |
2363 | ||
2364 | if(file_acl->acl_mode & S_IXACL){ | |
2365 | /* while we are not pointing to the very end */ | |
2366 | while(acl_entry < acl_last(file_acl)) { | |
2367 | /* before we malloc anything, make sure this is */ | |
2368 | /* a valid acl entry and one that we want to map */ | |
2369 | idp = id_nxt(acl_entry->ace_id); | |
2370 | if((acl_entry->ace_type == ACC_SPECIFY || | |
2371 | (acl_entry->ace_type == ACC_PERMIT)) && (idp != id_last(acl_entry))) { | |
2372 | acl_entry = acl_nxt(acl_entry); | |
2373 | continue; | |
2374 | } | |
2375 | ||
2376 | idp = acl_entry->ace_id; | |
2377 | ||
2378 | /* Check if this is the first entry in the linked list. * | |
2379 | * The first entry needs to keep prevp pointing to NULL * | |
2380 | * and already has entryp allocated. */ | |
2381 | ||
2382 | if(acl_entry_link_head->count != 0) { | |
2383 | acl_entry_link->nextp = SMB_MALLOC_P(struct acl_entry_link); | |
2384 | ||
2385 | if(acl_entry_link->nextp == NULL) { | |
2386 | SAFE_FREE(file_acl); | |
2387 | errno = ENOMEM; | |
2388 | DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno)); | |
2389 | return(NULL); | |
2390 | } | |
2391 | ||
2392 | acl_entry_link->nextp->prevp = acl_entry_link; | |
2393 | acl_entry_link = acl_entry_link->nextp; | |
2394 | acl_entry_link->entryp = SMB_MALLOC_P(struct new_acl_entry); | |
2395 | if(acl_entry_link->entryp == NULL) { | |
2396 | SAFE_FREE(file_acl); | |
2397 | errno = ENOMEM; | |
2398 | DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno)); | |
2399 | return(NULL); | |
2400 | } | |
2401 | acl_entry_link->nextp = NULL; | |
2402 | } | |
2403 | ||
2404 | acl_entry_link->entryp->ace_len = acl_entry->ace_len; | |
2405 | ||
2406 | /* Don't really need this since all types are going * | |
2407 | * to be specified but, it's better than leaving it 0 */ | |
2408 | ||
2409 | acl_entry_link->entryp->ace_type = acl_entry->ace_type; | |
2410 | ||
2411 | acl_entry_link->entryp->ace_access = acl_entry->ace_access; | |
2412 | ||
2413 | memcpy(acl_entry_link->entryp->ace_id,idp,sizeof(struct ace_id)); | |
2414 | ||
2415 | /* The access in the acl entries must be left shifted by * | |
2416 | * three bites, because they will ultimately be compared * | |
2417 | * to S_IRUSR, S_IWUSR, and S_IXUSR. */ | |
2418 | ||
2419 | switch(acl_entry->ace_type){ | |
2420 | case ACC_PERMIT: | |
2421 | case ACC_SPECIFY: | |
2422 | acl_entry_link->entryp->ace_access = acl_entry->ace_access; | |
2423 | acl_entry_link->entryp->ace_access <<= 6; | |
2424 | acl_entry_link_head->count++; | |
2425 | break; | |
2426 | case ACC_DENY: | |
2427 | /* Since there is no way to return a DENY acl entry * | |
2428 | * change to PERMIT and then shift. */ | |
2429 | DEBUG(10,("acl_entry->ace_access is %d\n",acl_entry->ace_access)); | |
2430 | acl_entry_link->entryp->ace_access = ~acl_entry->ace_access & 7; | |
2431 | DEBUG(10,("acl_entry_link->entryp->ace_access is %d\n",acl_entry_link->entryp->ace_access)); | |
2432 | acl_entry_link->entryp->ace_access <<= 6; | |
2433 | acl_entry_link_head->count++; | |
2434 | break; | |
2435 | default: | |
2436 | return(0); | |
2437 | } | |
2438 | ||
2439 | DEBUG(10,("acl_entry = %d\n",acl_entry)); | |
2440 | DEBUG(10,("The ace_type is %d\n",acl_entry->ace_type)); | |
2441 | ||
2442 | acl_entry = acl_nxt(acl_entry); | |
2443 | } | |
2444 | } /* end of if enabled */ | |
2445 | ||
2446 | /* Since owner, group, other acl entries are not * | |
2447 | * part of the acl entries in an acl, they must * | |
2448 | * be dummied up to become part of the list. */ | |
2449 | ||
2450 | for( i = 1; i < 4; i++) { | |
2451 | DEBUG(10,("i is %d\n",i)); | |
2452 | if(acl_entry_link_head->count != 0) { | |
2453 | acl_entry_link->nextp = SMB_MALLOC_P(struct acl_entry_link); | |
2454 | if(acl_entry_link->nextp == NULL) { | |
2455 | SAFE_FREE(file_acl); | |
2456 | errno = ENOMEM; | |
2457 | DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno)); | |
2458 | return(NULL); | |
2459 | } | |
2460 | ||
2461 | acl_entry_link->nextp->prevp = acl_entry_link; | |
2462 | acl_entry_link = acl_entry_link->nextp; | |
2463 | acl_entry_link->entryp = SMB_MALLOC_P(struct new_acl_entry); | |
2464 | if(acl_entry_link->entryp == NULL) { | |
2465 | SAFE_FREE(file_acl); | |
2466 | errno = ENOMEM; | |
2467 | DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno)); | |
2468 | return(NULL); | |
2469 | } | |
2470 | } | |
2471 | ||
2472 | acl_entry_link->nextp = NULL; | |
2473 | ||
2474 | new_acl_entry = acl_entry_link->entryp; | |
2475 | idp = new_acl_entry->ace_id; | |
2476 | ||
2477 | new_acl_entry->ace_len = sizeof(struct acl_entry); | |
2478 | new_acl_entry->ace_type = ACC_PERMIT; | |
2479 | idp->id_len = sizeof(struct ace_id); | |
2480 | DEBUG(10,("idp->id_len = %d\n",idp->id_len)); | |
2481 | memset(idp->id_data,0,sizeof(uid_t)); | |
2482 | ||
2483 | switch(i) { | |
2484 | case 2: | |
2485 | new_acl_entry->ace_access = file_acl->g_access << 6; | |
2486 | idp->id_type = SMB_ACL_GROUP_OBJ; | |
2487 | break; | |
2488 | ||
2489 | case 3: | |
2490 | new_acl_entry->ace_access = file_acl->o_access << 6; | |
2491 | idp->id_type = SMB_ACL_OTHER; | |
2492 | break; | |
2493 | ||
2494 | case 1: | |
2495 | new_acl_entry->ace_access = file_acl->u_access << 6; | |
2496 | idp->id_type = SMB_ACL_USER_OBJ; | |
2497 | break; | |
2498 | ||
2499 | default: | |
2500 | return(NULL); | |
2501 | ||
2502 | } | |
2503 | ||
2504 | acl_entry_link_head->count++; | |
2505 | DEBUG(10,("new_acl_entry->ace_access = %d\n",new_acl_entry->ace_access)); | |
2506 | } | |
2507 | ||
2508 | acl_entry_link_head->count = 0; | |
2509 | SAFE_FREE(file_acl); | |
2510 | ||
2511 | return(acl_entry_link_head); | |
2512 | } | |
2513 | ||
2514 | SMB_ACL_T sys_acl_get_fd(int fd) | |
2515 | { | |
2516 | struct acl *file_acl = (struct acl *)NULL; | |
2517 | struct acl_entry *acl_entry; | |
2518 | struct new_acl_entry *new_acl_entry; | |
2519 | struct ace_id *idp; | |
2520 | struct acl_entry_link *acl_entry_link; | |
2521 | struct acl_entry_link *acl_entry_link_head; | |
2522 | int i; | |
2523 | int rc = 0; | |
2524 | uid_t user_id; | |
2525 | ||
2526 | /* Get the acl using fstatacl */ | |
2527 | ||
2528 | DEBUG(10,("Entering sys_acl_get_fd\n")); | |
2529 | DEBUG(10,("fd is %d\n",fd)); | |
2530 | file_acl = (struct acl *)SMB_MALLOC(BUFSIZ); | |
2531 | ||
2532 | if(file_acl == NULL) { | |
2533 | errno=ENOMEM; | |
2534 | DEBUG(0,("Error in sys_acl_get_fd is %d\n",errno)); | |
2535 | return(NULL); | |
2536 | } | |
2537 | ||
2538 | memset(file_acl,0,BUFSIZ); | |
2539 | ||
2540 | rc = fstatacl(fd,0,file_acl,BUFSIZ); | |
2541 | if(rc == -1) { | |
2542 | DEBUG(0,("The fstatacl call returned %d with errno %d\n",rc,errno)); | |
2543 | SAFE_FREE(file_acl); | |
2544 | return(NULL); | |
2545 | } | |
2546 | ||
2547 | DEBUG(10,("Got facl and returned it\n")); | |
2548 | ||
2549 | /* Point to the first acl entry in the acl */ | |
2550 | ||
2551 | acl_entry = file_acl->acl_ext; | |
2552 | /* Begin setting up the head of the linked list * | |
2553 | * that will be used for the storing the acl * | |
2554 | * in a way that is useful for the posix_acls.c * | |
2555 | * code. */ | |
2556 | ||
2557 | acl_entry_link_head = acl_entry_link = sys_acl_init(0); | |
2558 | if(acl_entry_link_head == NULL){ | |
2559 | SAFE_FREE(file_acl); | |
2560 | return(NULL); | |
2561 | } | |
2562 | ||
2563 | acl_entry_link->entryp = SMB_MALLOC_P(struct new_acl_entry); | |
2564 | ||
2565 | if(acl_entry_link->entryp == NULL) { | |
2566 | errno = ENOMEM; | |
2567 | DEBUG(0,("Error in sys_acl_get_fd is %d\n",errno)); | |
2568 | SAFE_FREE(file_acl); | |
2569 | return(NULL); | |
2570 | } | |
2571 | ||
2572 | DEBUG(10,("acl_entry is %d\n",acl_entry)); | |
2573 | DEBUG(10,("acl_last(file_acl) id %d\n",acl_last(file_acl))); | |
2574 | ||
2575 | /* Check if the extended acl bit is on. * | |
2576 | * If it isn't, do not show the * | |
2577 | * contents of the acl since AIX intends * | |
2578 | * the extended info to remain unused */ | |
2579 | ||
2580 | if(file_acl->acl_mode & S_IXACL){ | |
2581 | /* while we are not pointing to the very end */ | |
2582 | while(acl_entry < acl_last(file_acl)) { | |
2583 | /* before we malloc anything, make sure this is */ | |
2584 | /* a valid acl entry and one that we want to map */ | |
2585 | ||
2586 | idp = id_nxt(acl_entry->ace_id); | |
2587 | if((acl_entry->ace_type == ACC_SPECIFY || | |
2588 | (acl_entry->ace_type == ACC_PERMIT)) && (idp != id_last(acl_entry))) { | |
2589 | acl_entry = acl_nxt(acl_entry); | |
2590 | continue; | |
2591 | } | |
2592 | ||
2593 | idp = acl_entry->ace_id; | |
2594 | ||
2595 | /* Check if this is the first entry in the linked list. * | |
2596 | * The first entry needs to keep prevp pointing to NULL * | |
2597 | * and already has entryp allocated. */ | |
2598 | ||
2599 | if(acl_entry_link_head->count != 0) { | |
2600 | acl_entry_link->nextp = SMB_MALLOC_P(struct acl_entry_link); | |
2601 | if(acl_entry_link->nextp == NULL) { | |
2602 | errno = ENOMEM; | |
2603 | DEBUG(0,("Error in sys_acl_get_fd is %d\n",errno)); | |
2604 | SAFE_FREE(file_acl); | |
2605 | return(NULL); | |
2606 | } | |
2607 | acl_entry_link->nextp->prevp = acl_entry_link; | |
2608 | acl_entry_link = acl_entry_link->nextp; | |
2609 | acl_entry_link->entryp = SMB_MALLOC_P(struct new_acl_entry); | |
2610 | if(acl_entry_link->entryp == NULL) { | |
2611 | errno = ENOMEM; | |
2612 | DEBUG(0,("Error in sys_acl_get_fd is %d\n",errno)); | |
2613 | SAFE_FREE(file_acl); | |
2614 | return(NULL); | |
2615 | } | |
2616 | ||
2617 | acl_entry_link->nextp = NULL; | |
2618 | } | |
2619 | ||
2620 | acl_entry_link->entryp->ace_len = acl_entry->ace_len; | |
2621 | ||
2622 | /* Don't really need this since all types are going * | |
2623 | * to be specified but, it's better than leaving it 0 */ | |
2624 | ||
2625 | acl_entry_link->entryp->ace_type = acl_entry->ace_type; | |
2626 | acl_entry_link->entryp->ace_access = acl_entry->ace_access; | |
2627 | ||
2628 | memcpy(acl_entry_link->entryp->ace_id, idp, sizeof(struct ace_id)); | |
2629 | ||
2630 | /* The access in the acl entries must be left shifted by * | |
2631 | * three bites, because they will ultimately be compared * | |
2632 | * to S_IRUSR, S_IWUSR, and S_IXUSR. */ | |
2633 | ||
2634 | switch(acl_entry->ace_type){ | |
2635 | case ACC_PERMIT: | |
2636 | case ACC_SPECIFY: | |
2637 | acl_entry_link->entryp->ace_access = acl_entry->ace_access; | |
2638 | acl_entry_link->entryp->ace_access <<= 6; | |
2639 | acl_entry_link_head->count++; | |
2640 | break; | |
2641 | case ACC_DENY: | |
2642 | /* Since there is no way to return a DENY acl entry * | |
2643 | * change to PERMIT and then shift. */ | |
2644 | DEBUG(10,("acl_entry->ace_access is %d\n",acl_entry->ace_access)); | |
2645 | acl_entry_link->entryp->ace_access = ~acl_entry->ace_access & 7; | |
2646 | DEBUG(10,("acl_entry_link->entryp->ace_access is %d\n",acl_entry_link->entryp->ace_access)); | |
2647 | acl_entry_link->entryp->ace_access <<= 6; | |
2648 | acl_entry_link_head->count++; | |
2649 | break; | |
2650 | default: | |
2651 | return(0); | |
2652 | } | |
2653 | ||
2654 | DEBUG(10,("acl_entry = %d\n",acl_entry)); | |
2655 | DEBUG(10,("The ace_type is %d\n",acl_entry->ace_type)); | |
2656 | ||
2657 | acl_entry = acl_nxt(acl_entry); | |
2658 | } | |
2659 | } /* end of if enabled */ | |
2660 | ||
2661 | /* Since owner, group, other acl entries are not * | |
2662 | * part of the acl entries in an acl, they must * | |
2663 | * be dummied up to become part of the list. */ | |
2664 | ||
2665 | for( i = 1; i < 4; i++) { | |
2666 | DEBUG(10,("i is %d\n",i)); | |
2667 | if(acl_entry_link_head->count != 0){ | |
2668 | acl_entry_link->nextp = SMB_MALLOC_P(struct acl_entry_link); | |
2669 | if(acl_entry_link->nextp == NULL) { | |
2670 | errno = ENOMEM; | |
2671 | DEBUG(0,("Error in sys_acl_get_fd is %d\n",errno)); | |
2672 | SAFE_FREE(file_acl); | |
2673 | return(NULL); | |
2674 | } | |
2675 | ||
2676 | acl_entry_link->nextp->prevp = acl_entry_link; | |
2677 | acl_entry_link = acl_entry_link->nextp; | |
2678 | acl_entry_link->entryp = SMB_MALLOC_P(struct new_acl_entry); | |
2679 | ||
2680 | if(acl_entry_link->entryp == NULL) { | |
2681 | SAFE_FREE(file_acl); | |
2682 | errno = ENOMEM; | |
2683 | DEBUG(0,("Error in sys_acl_get_fd is %d\n",errno)); | |
2684 | return(NULL); | |
2685 | } | |
2686 | } | |
2687 | ||
2688 | acl_entry_link->nextp = NULL; | |
2689 | ||
2690 | new_acl_entry = acl_entry_link->entryp; | |
2691 | idp = new_acl_entry->ace_id; | |
2692 | ||
2693 | new_acl_entry->ace_len = sizeof(struct acl_entry); | |
2694 | new_acl_entry->ace_type = ACC_PERMIT; | |
2695 | idp->id_len = sizeof(struct ace_id); | |
2696 | DEBUG(10,("idp->id_len = %d\n",idp->id_len)); | |
2697 | memset(idp->id_data,0,sizeof(uid_t)); | |
2698 | ||
2699 | switch(i) { | |
2700 | case 2: | |
2701 | new_acl_entry->ace_access = file_acl->g_access << 6; | |
2702 | idp->id_type = SMB_ACL_GROUP_OBJ; | |
2703 | break; | |
2704 | ||
2705 | case 3: | |
2706 | new_acl_entry->ace_access = file_acl->o_access << 6; | |
2707 | idp->id_type = SMB_ACL_OTHER; | |
2708 | break; | |
2709 | ||
2710 | case 1: | |
2711 | new_acl_entry->ace_access = file_acl->u_access << 6; | |
2712 | idp->id_type = SMB_ACL_USER_OBJ; | |
2713 | break; | |
2714 | ||
2715 | default: | |
2716 | return(NULL); | |
2717 | } | |
2718 | ||
2719 | acl_entry_link_head->count++; | |
2720 | DEBUG(10,("new_acl_entry->ace_access = %d\n",new_acl_entry->ace_access)); | |
2721 | } | |
2722 | ||
2723 | acl_entry_link_head->count = 0; | |
2724 | SAFE_FREE(file_acl); | |
2725 | ||
2726 | return(acl_entry_link_head); | |
2727 | } | |
2728 | ||
2729 | int sys_acl_clear_perms(SMB_ACL_PERMSET_T permset) | |
2730 | { | |
2731 | *permset = *permset & ~0777; | |
2732 | return(0); | |
2733 | } | |
2734 | ||
2735 | int sys_acl_add_perm( SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm) | |
2736 | { | |
2737 | if((perm != 0) && | |
2738 | (perm & (S_IXUSR | S_IWUSR | S_IRUSR)) == 0) | |
2739 | return(-1); | |
2740 | ||
2741 | *permset |= perm; | |
2742 | DEBUG(10,("This is the permset now: %d\n",*permset)); | |
2743 | return(0); | |
2744 | } | |
2745 | ||
2746 | char *sys_acl_to_text( SMB_ACL_T theacl, ssize_t *plen) | |
2747 | { | |
2748 | return(NULL); | |
2749 | } | |
2750 | ||
2751 | SMB_ACL_T sys_acl_init( int count) | |
2752 | { | |
2753 | struct acl_entry_link *theacl = NULL; | |
2754 | ||
2755 | DEBUG(10,("Entering sys_acl_init\n")); | |
2756 | ||
2757 | theacl = SMB_MALLOC_P(struct acl_entry_link); | |
2758 | if(theacl == NULL) { | |
2759 | errno = ENOMEM; | |
2760 | DEBUG(0,("Error in sys_acl_init is %d\n",errno)); | |
2761 | return(NULL); | |
2762 | } | |
2763 | ||
2764 | theacl->count = 0; | |
2765 | theacl->nextp = NULL; | |
2766 | theacl->prevp = NULL; | |
2767 | theacl->entryp = NULL; | |
2768 | DEBUG(10,("Exiting sys_acl_init\n")); | |
2769 | return(theacl); | |
2770 | } | |
2771 | ||
2772 | int sys_acl_create_entry( SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry) | |
2773 | { | |
2774 | struct acl_entry_link *theacl; | |
2775 | struct acl_entry_link *acl_entryp; | |
2776 | struct acl_entry_link *temp_entry; | |
2777 | int counting; | |
2778 | ||
2779 | DEBUG(10,("Entering the sys_acl_create_entry\n")); | |
2780 | ||
2781 | theacl = acl_entryp = *pacl; | |
2782 | ||
2783 | /* Get to the end of the acl before adding entry */ | |
2784 | ||
2785 | for(counting=0; counting < theacl->count; counting++){ | |
2786 | DEBUG(10,("The acl_entryp is %d\n",acl_entryp)); | |
2787 | temp_entry = acl_entryp; | |
2788 | acl_entryp = acl_entryp->nextp; | |
2789 | } | |
2790 | ||
2791 | if(theacl->count != 0){ | |
2792 | temp_entry->nextp = acl_entryp = SMB_MALLOC_P(struct acl_entry_link); | |
2793 | if(acl_entryp == NULL) { | |
2794 | errno = ENOMEM; | |
2795 | DEBUG(0,("Error in sys_acl_create_entry is %d\n",errno)); | |
2796 | return(-1); | |
2797 | } | |
2798 | ||
2799 | DEBUG(10,("The acl_entryp is %d\n",acl_entryp)); | |
2800 | acl_entryp->prevp = temp_entry; | |
2801 | DEBUG(10,("The acl_entryp->prevp is %d\n",acl_entryp->prevp)); | |
2802 | } | |
2803 | ||
2804 | *pentry = acl_entryp->entryp = SMB_MALLOC_P(struct new_acl_entry); | |
2805 | if(*pentry == NULL) { | |
2806 | errno = ENOMEM; | |
2807 | DEBUG(0,("Error in sys_acl_create_entry is %d\n",errno)); | |
2808 | return(-1); | |
2809 | } | |
2810 | ||
2811 | memset(*pentry,0,sizeof(struct new_acl_entry)); | |
2812 | acl_entryp->entryp->ace_len = sizeof(struct acl_entry); | |
2813 | acl_entryp->entryp->ace_type = ACC_PERMIT; | |
2814 | acl_entryp->entryp->ace_id->id_len = sizeof(struct ace_id); | |
2815 | acl_entryp->nextp = NULL; | |
2816 | theacl->count++; | |
2817 | DEBUG(10,("Exiting sys_acl_create_entry\n")); | |
2818 | return(0); | |
2819 | } | |
2820 | ||
2821 | int sys_acl_set_tag_type( SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype) | |
2822 | { | |
2823 | DEBUG(10,("Starting AIX sys_acl_set_tag_type\n")); | |
2824 | entry->ace_id->id_type = tagtype; | |
2825 | DEBUG(10,("The tag type is %d\n",entry->ace_id->id_type)); | |
2826 | DEBUG(10,("Ending AIX sys_acl_set_tag_type\n")); | |
2827 | } | |
2828 | ||
2829 | int sys_acl_set_qualifier( SMB_ACL_ENTRY_T entry, void *qual) | |
2830 | { | |
2831 | DEBUG(10,("Starting AIX sys_acl_set_qualifier\n")); | |
2832 | memcpy(entry->ace_id->id_data,qual,sizeof(uid_t)); | |
2833 | DEBUG(10,("Ending AIX sys_acl_set_qualifier\n")); | |
2834 | return(0); | |
2835 | } | |
2836 | ||
2837 | int sys_acl_set_permset( SMB_ACL_ENTRY_T entry, SMB_ACL_PERMSET_T permset) | |
2838 | { | |
2839 | DEBUG(10,("Starting AIX sys_acl_set_permset\n")); | |
2840 | if(!(*permset & S_IXUSR) && | |
2841 | !(*permset & S_IWUSR) && | |
2842 | !(*permset & S_IRUSR) && | |
2843 | (*permset != 0)) | |
2844 | return(-1); | |
2845 | ||
2846 | entry->ace_access = *permset; | |
2847 | DEBUG(10,("entry->ace_access = %d\n",entry->ace_access)); | |
2848 | DEBUG(10,("Ending AIX sys_acl_set_permset\n")); | |
2849 | return(0); | |
2850 | } | |
2851 | ||
2852 | int sys_acl_valid( SMB_ACL_T theacl ) | |
2853 | { | |
2854 | int user_obj = 0; | |
2855 | int group_obj = 0; | |
2856 | int other_obj = 0; | |
2857 | struct acl_entry_link *acl_entry; | |
2858 | ||
2859 | for(acl_entry=theacl; acl_entry != NULL; acl_entry = acl_entry->nextp) { | |
2860 | user_obj += (acl_entry->entryp->ace_id->id_type == SMB_ACL_USER_OBJ); | |
2861 | group_obj += (acl_entry->entryp->ace_id->id_type == SMB_ACL_GROUP_OBJ); | |
2862 | other_obj += (acl_entry->entryp->ace_id->id_type == SMB_ACL_OTHER); | |
2863 | } | |
2864 | ||
2865 | DEBUG(10,("user_obj=%d, group_obj=%d, other_obj=%d\n",user_obj,group_obj,other_obj)); | |
2866 | ||
2867 | if(user_obj != 1 || group_obj != 1 || other_obj != 1) | |
2868 | return(-1); | |
2869 | ||
2870 | return(0); | |
2871 | } | |
2872 | ||
2873 | int sys_acl_set_file( const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) | |
2874 | { | |
2875 | struct acl_entry_link *acl_entry_link = NULL; | |
2876 | struct acl *file_acl = NULL; | |
2877 | struct acl *file_acl_temp = NULL; | |
2878 | struct acl_entry *acl_entry = NULL; | |
2879 | struct ace_id *ace_id = NULL; | |
2880 | uint id_type; | |
2881 | uint ace_access; | |
2882 | uint user_id; | |
2883 | uint acl_length; | |
2884 | uint rc; | |
2885 | ||
2886 | DEBUG(10,("Entering sys_acl_set_file\n")); | |
2887 | DEBUG(10,("File name is %s\n",name)); | |
2888 | ||
2889 | /* AIX has no default ACL */ | |
2890 | if(acltype == SMB_ACL_TYPE_DEFAULT) | |
2891 | return(0); | |
2892 | ||
2893 | acl_length = BUFSIZ; | |
2894 | file_acl = (struct acl *)SMB_MALLOC(BUFSIZ); | |
2895 | ||
2896 | if(file_acl == NULL) { | |
2897 | errno = ENOMEM; | |
2898 | DEBUG(0,("Error in sys_acl_set_file is %d\n",errno)); | |
2899 | return(-1); | |
2900 | } | |
2901 | ||
2902 | memset(file_acl,0,BUFSIZ); | |
2903 | ||
2904 | file_acl->acl_len = ACL_SIZ; | |
2905 | file_acl->acl_mode = S_IXACL; | |
2906 | ||
2907 | for(acl_entry_link=theacl; acl_entry_link != NULL; acl_entry_link = acl_entry_link->nextp) { | |
2908 | acl_entry_link->entryp->ace_access >>= 6; | |
2909 | id_type = acl_entry_link->entryp->ace_id->id_type; | |
2910 | ||
2911 | switch(id_type) { | |
2912 | case SMB_ACL_USER_OBJ: | |
2913 | file_acl->u_access = acl_entry_link->entryp->ace_access; | |
2914 | continue; | |
2915 | case SMB_ACL_GROUP_OBJ: | |
2916 | file_acl->g_access = acl_entry_link->entryp->ace_access; | |
2917 | continue; | |
2918 | case SMB_ACL_OTHER: | |
2919 | file_acl->o_access = acl_entry_link->entryp->ace_access; | |
2920 | continue; | |
2921 | case SMB_ACL_MASK: | |
2922 | continue; | |
2923 | } | |
2924 | ||
2925 | if((file_acl->acl_len + sizeof(struct acl_entry)) > acl_length) { | |
2926 | acl_length += sizeof(struct acl_entry); | |
2927 | file_acl_temp = (struct acl *)SMB_MALLOC(acl_length); | |
2928 | if(file_acl_temp == NULL) { | |
2929 | SAFE_FREE(file_acl); | |
2930 | errno = ENOMEM; | |
2931 | DEBUG(0,("Error in sys_acl_set_file is %d\n",errno)); | |
2932 | return(-1); | |
2933 | } | |
2934 | ||
2935 | memcpy(file_acl_temp,file_acl,file_acl->acl_len); | |
2936 | SAFE_FREE(file_acl); | |
2937 | file_acl = file_acl_temp; | |
2938 | } | |
2939 | ||
2940 | acl_entry = (struct acl_entry *)((char *)file_acl + file_acl->acl_len); | |
2941 | file_acl->acl_len += sizeof(struct acl_entry); | |
2942 | acl_entry->ace_len = acl_entry_link->entryp->ace_len; | |
2943 | acl_entry->ace_access = acl_entry_link->entryp->ace_access; | |
2944 | ||
2945 | /* In order to use this, we'll need to wait until we can get denies */ | |
2946 | /* if(!acl_entry->ace_access && acl_entry->ace_type == ACC_PERMIT) | |
2947 | acl_entry->ace_type = ACC_SPECIFY; */ | |
2948 | ||
2949 | acl_entry->ace_type = ACC_SPECIFY; | |
2950 | ||
2951 | ace_id = acl_entry->ace_id; | |
2952 | ||
2953 | ace_id->id_type = acl_entry_link->entryp->ace_id->id_type; | |
2954 | DEBUG(10,("The id type is %d\n",ace_id->id_type)); | |
2955 | ace_id->id_len = acl_entry_link->entryp->ace_id->id_len; | |
2956 | memcpy(&user_id, acl_entry_link->entryp->ace_id->id_data, sizeof(uid_t)); | |
2957 | memcpy(acl_entry->ace_id->id_data, &user_id, sizeof(uid_t)); | |
2958 | } | |
2959 | ||
2960 | rc = chacl(name,file_acl,file_acl->acl_len); | |
2961 | DEBUG(10,("errno is %d\n",errno)); | |
2962 | DEBUG(10,("return code is %d\n",rc)); | |
2963 | SAFE_FREE(file_acl); | |
2964 | DEBUG(10,("Exiting the sys_acl_set_file\n")); | |
2965 | return(rc); | |
2966 | } | |
2967 | ||
2968 | int sys_acl_set_fd( int fd, SMB_ACL_T theacl) | |
2969 | { | |
2970 | struct acl_entry_link *acl_entry_link = NULL; | |
2971 | struct acl *file_acl = NULL; | |
2972 | struct acl *file_acl_temp = NULL; | |
2973 | struct acl_entry *acl_entry = NULL; | |
2974 | struct ace_id *ace_id = NULL; | |
2975 | uint id_type; | |
2976 | uint user_id; | |
2977 | uint acl_length; | |
2978 | uint rc; | |
2979 | ||
2980 | DEBUG(10,("Entering sys_acl_set_fd\n")); | |
2981 | acl_length = BUFSIZ; | |
2982 | file_acl = (struct acl *)SMB_MALLOC(BUFSIZ); | |
2983 | ||
2984 | if(file_acl == NULL) { | |
2985 | errno = ENOMEM; | |
2986 | DEBUG(0,("Error in sys_acl_set_fd is %d\n",errno)); | |
2987 | return(-1); | |
2988 | } | |
2989 | ||
2990 | memset(file_acl,0,BUFSIZ); | |
2991 | ||
2992 | file_acl->acl_len = ACL_SIZ; | |
2993 | file_acl->acl_mode = S_IXACL; | |
2994 | ||
2995 | for(acl_entry_link=theacl; acl_entry_link != NULL; acl_entry_link = acl_entry_link->nextp) { | |
2996 | acl_entry_link->entryp->ace_access >>= 6; | |
2997 | id_type = acl_entry_link->entryp->ace_id->id_type; | |
2998 | DEBUG(10,("The id_type is %d\n",id_type)); | |
2999 | ||
3000 | switch(id_type) { | |
3001 | case SMB_ACL_USER_OBJ: | |
3002 | file_acl->u_access = acl_entry_link->entryp->ace_access; | |
3003 | continue; | |
3004 | case SMB_ACL_GROUP_OBJ: | |
3005 | file_acl->g_access = acl_entry_link->entryp->ace_access; | |
3006 | continue; | |
3007 | case SMB_ACL_OTHER: | |
3008 | file_acl->o_access = acl_entry_link->entryp->ace_access; | |
3009 | continue; | |
3010 | case SMB_ACL_MASK: | |
3011 | continue; | |
3012 | } | |
3013 | ||
3014 | if((file_acl->acl_len + sizeof(struct acl_entry)) > acl_length) { | |
3015 | acl_length += sizeof(struct acl_entry); | |
3016 | file_acl_temp = (struct acl *)SMB_MALLOC(acl_length); | |
3017 | if(file_acl_temp == NULL) { | |
3018 | SAFE_FREE(file_acl); | |
3019 | errno = ENOMEM; | |
3020 | DEBUG(0,("Error in sys_acl_set_fd is %d\n",errno)); | |
3021 | return(-1); | |
3022 | } | |
3023 | ||
3024 | memcpy(file_acl_temp,file_acl,file_acl->acl_len); | |
3025 | SAFE_FREE(file_acl); | |
3026 | file_acl = file_acl_temp; | |
3027 | } | |
3028 | ||
3029 | acl_entry = (struct acl_entry *)((char *)file_acl + file_acl->acl_len); | |
3030 | file_acl->acl_len += sizeof(struct acl_entry); | |
3031 | acl_entry->ace_len = acl_entry_link->entryp->ace_len; | |
3032 | acl_entry->ace_access = acl_entry_link->entryp->ace_access; | |
3033 | ||
3034 | /* In order to use this, we'll need to wait until we can get denies */ | |
3035 | /* if(!acl_entry->ace_access && acl_entry->ace_type == ACC_PERMIT) | |
3036 | acl_entry->ace_type = ACC_SPECIFY; */ | |
3037 | ||
3038 | acl_entry->ace_type = ACC_SPECIFY; | |
3039 | ||
3040 | ace_id = acl_entry->ace_id; | |
3041 | ||
3042 | ace_id->id_type = acl_entry_link->entryp->ace_id->id_type; | |
3043 | DEBUG(10,("The id type is %d\n",ace_id->id_type)); | |
3044 | ace_id->id_len = acl_entry_link->entryp->ace_id->id_len; | |
3045 | memcpy(&user_id, acl_entry_link->entryp->ace_id->id_data, sizeof(uid_t)); | |
3046 | memcpy(ace_id->id_data, &user_id, sizeof(uid_t)); | |
3047 | } | |
3048 | ||
3049 | rc = fchacl(fd,file_acl,file_acl->acl_len); | |
3050 | DEBUG(10,("errno is %d\n",errno)); | |
3051 | DEBUG(10,("return code is %d\n",rc)); | |
3052 | SAFE_FREE(file_acl); | |
3053 | DEBUG(10,("Exiting sys_acl_set_fd\n")); | |
3054 | return(rc); | |
3055 | } | |
3056 | ||
3057 | int sys_acl_delete_def_file(const char *name) | |
3058 | { | |
3059 | /* AIX has no default ACL */ | |
3060 | return 0; | |
3061 | } | |
3062 | ||
3063 | int sys_acl_get_perm( SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm) | |
3064 | { | |
3065 | return(*permset & perm); | |
3066 | } | |
3067 | ||
3068 | int sys_acl_free_text(char *text) | |
3069 | { | |
3070 | return(0); | |
3071 | } | |
3072 | ||
3073 | int sys_acl_free_acl(SMB_ACL_T posix_acl) | |
3074 | { | |
3075 | struct acl_entry_link *acl_entry_link; | |
3076 | ||
3077 | for(acl_entry_link = posix_acl->nextp; acl_entry_link->nextp != NULL; acl_entry_link = acl_entry_link->nextp) { | |
3078 | SAFE_FREE(acl_entry_link->prevp->entryp); | |
3079 | SAFE_FREE(acl_entry_link->prevp); | |
3080 | } | |
3081 | ||
3082 | SAFE_FREE(acl_entry_link->prevp->entryp); | |
3083 | SAFE_FREE(acl_entry_link->prevp); | |
3084 | SAFE_FREE(acl_entry_link->entryp); | |
3085 | SAFE_FREE(acl_entry_link); | |
3086 | ||
3087 | return(0); | |
3088 | } | |
3089 | ||
3090 | int sys_acl_free_qualifier(void *qual, SMB_ACL_TAG_T tagtype) | |
3091 | { | |
3092 | return(0); | |
3093 | } | |
3094 | ||
3095 | #else /* No ACLs. */ | |
3096 | ||
3097 | int sys_acl_get_entry(UNUSED(SMB_ACL_T the_acl), UNUSED(int entry_id), UNUSED(SMB_ACL_ENTRY_T *entry_p)) | |
3098 | { | |
3099 | errno = ENOSYS; | |
3100 | return -1; | |
3101 | } | |
3102 | ||
3103 | int sys_acl_get_tag_type(UNUSED(SMB_ACL_ENTRY_T entry_d), UNUSED(SMB_ACL_TAG_T *tag_type_p)) | |
3104 | { | |
3105 | errno = ENOSYS; | |
3106 | return -1; | |
3107 | } | |
3108 | ||
3109 | int sys_acl_get_permset(UNUSED(SMB_ACL_ENTRY_T entry_d), UNUSED(SMB_ACL_PERMSET_T *permset_p)) | |
3110 | { | |
3111 | errno = ENOSYS; | |
3112 | return -1; | |
3113 | } | |
3114 | ||
3115 | void *sys_acl_get_qualifier(UNUSED(SMB_ACL_ENTRY_T entry_d)) | |
3116 | { | |
3117 | errno = ENOSYS; | |
3118 | return NULL; | |
3119 | } | |
3120 | ||
3121 | SMB_ACL_T sys_acl_get_file(UNUSED(const char *path_p), UNUSED(SMB_ACL_TYPE_T type)) | |
3122 | { | |
3123 | errno = ENOSYS; | |
3124 | return (SMB_ACL_T)NULL; | |
3125 | } | |
3126 | ||
3127 | SMB_ACL_T sys_acl_get_fd(UNUSED(int fd)) | |
3128 | { | |
3129 | errno = ENOSYS; | |
3130 | return (SMB_ACL_T)NULL; | |
3131 | } | |
3132 | ||
3133 | int sys_acl_clear_perms(UNUSED(SMB_ACL_PERMSET_T permset)) | |
3134 | { | |
3135 | errno = ENOSYS; | |
3136 | return -1; | |
3137 | } | |
3138 | ||
3139 | int sys_acl_add_perm( UNUSED(SMB_ACL_PERMSET_T permset), UNUSED(SMB_ACL_PERM_T perm)) | |
3140 | { | |
3141 | errno = ENOSYS; | |
3142 | return -1; | |
3143 | } | |
3144 | ||
3145 | int sys_acl_get_perm( SMB_ACL_PERMSET_T permset, SMB_ACL_PERM_T perm) | |
3146 | { | |
3147 | errno = ENOSYS; | |
3148 | return (permset & perm) ? 1 : 0; | |
3149 | } | |
3150 | ||
3151 | char *sys_acl_to_text(UNUSED(SMB_ACL_T the_acl), UNUSED(ssize_t *plen)) | |
3152 | { | |
3153 | errno = ENOSYS; | |
3154 | return NULL; | |
3155 | } | |
3156 | ||
3157 | int sys_acl_free_text(UNUSED(char *text)) | |
3158 | { | |
3159 | errno = ENOSYS; | |
3160 | return -1; | |
3161 | } | |
3162 | ||
3163 | SMB_ACL_T sys_acl_init(UNUSED(int count)) | |
3164 | { | |
3165 | errno = ENOSYS; | |
3166 | return NULL; | |
3167 | } | |
3168 | ||
3169 | int sys_acl_create_entry(UNUSED(SMB_ACL_T *pacl), UNUSED(SMB_ACL_ENTRY_T *pentry)) | |
3170 | { | |
3171 | errno = ENOSYS; | |
3172 | return -1; | |
3173 | } | |
3174 | ||
3175 | int sys_acl_set_tag_type(UNUSED(SMB_ACL_ENTRY_T entry), UNUSED(SMB_ACL_TAG_T tagtype)) | |
3176 | { | |
3177 | errno = ENOSYS; | |
3178 | return -1; | |
3179 | } | |
3180 | ||
3181 | int sys_acl_set_qualifier(UNUSED(SMB_ACL_ENTRY_T entry), UNUSED(void *qual)) | |
3182 | { | |
3183 | errno = ENOSYS; | |
3184 | return -1; | |
3185 | } | |
3186 | ||
3187 | int sys_acl_set_permset(UNUSED(SMB_ACL_ENTRY_T entry), UNUSED(SMB_ACL_PERMSET_T permset)) | |
3188 | { | |
3189 | errno = ENOSYS; | |
3190 | return -1; | |
3191 | } | |
3192 | ||
3193 | int sys_acl_valid(UNUSED(SMB_ACL_T theacl)) | |
3194 | { | |
3195 | errno = ENOSYS; | |
3196 | return -1; | |
3197 | } | |
3198 | ||
3199 | int sys_acl_set_file(UNUSED(const char *name), UNUSED(SMB_ACL_TYPE_T acltype), UNUSED(SMB_ACL_T theacl)) | |
3200 | { | |
3201 | errno = ENOSYS; | |
3202 | return -1; | |
3203 | } | |
3204 | ||
3205 | int sys_acl_set_fd(UNUSED(int fd), UNUSED(SMB_ACL_T theacl)) | |
3206 | { | |
3207 | errno = ENOSYS; | |
3208 | return -1; | |
3209 | } | |
3210 | ||
3211 | int sys_acl_delete_def_file(UNUSED(const char *name)) | |
3212 | { | |
3213 | errno = ENOSYS; | |
3214 | return -1; | |
3215 | } | |
3216 | ||
3217 | int sys_acl_free_acl(UNUSED(SMB_ACL_T the_acl)) | |
3218 | { | |
3219 | errno = ENOSYS; | |
3220 | return -1; | |
3221 | } | |
3222 | ||
3223 | int sys_acl_free_qualifier(UNUSED(void *qual), UNUSED(SMB_ACL_TAG_T tagtype)) | |
3224 | { | |
3225 | errno = ENOSYS; | |
3226 | return -1; | |
3227 | } | |
3228 | ||
3229 | #endif /* No ACLs. */ | |
3230 | ||
3231 | /************************************************************************ | |
3232 | Deliberately outside the ACL defines. Return 1 if this is a "no acls" | |
3233 | errno, 0 if not. | |
3234 | ************************************************************************/ | |
3235 | ||
3236 | int no_acl_syscall_error(int err) | |
3237 | { | |
3238 | #if defined(ENOSYS) | |
3239 | if (err == ENOSYS) { | |
3240 | return 1; | |
3241 | } | |
3242 | #endif | |
3243 | #if defined(ENOTSUP) | |
3244 | if (err == ENOTSUP) { | |
3245 | return 1; | |
3246 | } | |
3247 | #endif | |
3248 | return 0; | |
3249 | } | |
3250 | ||
3251 | #endif /* SUPPORT_ACLS */ |