| 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 */ |