| 1 | /* |
| 2 | Unix SMB/CIFS implementation. |
| 3 | Based on the Samba ACL support code. |
| 4 | Copyright (C) Jeremy Allison 2000. |
| 5 | |
| 6 | The permission functions have been changed to get/set all bits via |
| 7 | one call. Some functions that rsync doesn't need were also removed. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 2 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program; if not, write to the Free Software |
| 21 | Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
| 22 | */ |
| 23 | |
| 24 | #include "rsync.h" |
| 25 | #include "sysacls.h" |
| 26 | |
| 27 | #ifdef SUPPORT_ACLS |
| 28 | |
| 29 | #ifdef DEBUG |
| 30 | #undef DEBUG |
| 31 | #endif |
| 32 | #define DEBUG(x,y) |
| 33 | |
| 34 | void SAFE_FREE(void *mem) |
| 35 | { |
| 36 | if (mem) |
| 37 | free(mem); |
| 38 | } |
| 39 | |
| 40 | /* |
| 41 | This file wraps all differing system ACL interfaces into a consistent |
| 42 | one based on the POSIX interface. It also returns the correct errors |
| 43 | for older UNIX systems that don't support ACLs. |
| 44 | |
| 45 | The interfaces that each ACL implementation must support are as follows : |
| 46 | |
| 47 | int sys_acl_get_entry( SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p) |
| 48 | int sys_acl_get_tag_type( SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p) |
| 49 | int sys_acl_get_access_bits(SMB_ACL_ENTRY_T entry_d, uint32 *bits) |
| 50 | void *sys_acl_get_qualifier( SMB_ACL_ENTRY_T entry_d) |
| 51 | SMB_ACL_T sys_acl_get_file( const char *path_p, SMB_ACL_TYPE_T type) |
| 52 | SMB_ACL_T sys_acl_get_fd(int fd) |
| 53 | SMB_ACL_T sys_acl_init( int count) |
| 54 | int sys_acl_create_entry( SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry) |
| 55 | int sys_acl_set_tag_type( SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype) |
| 56 | int sys_acl_set_qualifier( SMB_ACL_ENTRY_T entry, void *qual) |
| 57 | int sys_acl_set_access_bits(SMB_ACL_ENTRY_T entry, uint32 bits) |
| 58 | int sys_acl_valid( SMB_ACL_T theacl ) |
| 59 | int sys_acl_set_file( const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) |
| 60 | int sys_acl_set_fd( int fd, SMB_ACL_T theacl) |
| 61 | int sys_acl_delete_def_file(const char *path) |
| 62 | |
| 63 | The generic POSIX free is the following call. We split this into |
| 64 | several different free functions as we may need to add tag info |
| 65 | to structures when emulating the POSIX interface. |
| 66 | |
| 67 | int sys_acl_free( void *obj_p) |
| 68 | |
| 69 | The calls we actually use are : |
| 70 | |
| 71 | int sys_acl_free_acl(SMB_ACL_T posix_acl) |
| 72 | int sys_acl_free_qualifier(void *qualifier, SMB_ACL_TAG_T tagtype) |
| 73 | |
| 74 | */ |
| 75 | |
| 76 | #if defined(HAVE_POSIX_ACLS) |
| 77 | |
| 78 | /* Identity mapping - easy. */ |
| 79 | |
| 80 | int sys_acl_get_entry( SMB_ACL_T the_acl, int entry_id, SMB_ACL_ENTRY_T *entry_p) |
| 81 | { |
| 82 | return acl_get_entry( the_acl, entry_id, entry_p); |
| 83 | } |
| 84 | |
| 85 | int sys_acl_get_tag_type( SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p) |
| 86 | { |
| 87 | return acl_get_tag_type( entry_d, tag_type_p); |
| 88 | } |
| 89 | |
| 90 | void *sys_acl_get_qualifier( SMB_ACL_ENTRY_T entry_d) |
| 91 | { |
| 92 | return acl_get_qualifier( entry_d); |
| 93 | } |
| 94 | |
| 95 | SMB_ACL_T sys_acl_get_file( const char *path_p, SMB_ACL_TYPE_T type) |
| 96 | { |
| 97 | return acl_get_file( path_p, type); |
| 98 | } |
| 99 | |
| 100 | #if 0 |
| 101 | SMB_ACL_T sys_acl_get_fd(int fd) |
| 102 | { |
| 103 | return acl_get_fd(fd); |
| 104 | } |
| 105 | #endif |
| 106 | |
| 107 | #if defined(HAVE_ACL_GET_PERM_NP) |
| 108 | #define acl_get_perm(p, b) acl_get_perm_np(p, b) |
| 109 | #endif |
| 110 | |
| 111 | int sys_acl_get_access_bits(SMB_ACL_ENTRY_T entry_d, uint32 *bits) |
| 112 | { |
| 113 | SMB_ACL_PERMSET_T permset; |
| 114 | int rc; |
| 115 | if ((rc = acl_get_permset(entry_d, &permset)) != 0) |
| 116 | return rc; |
| 117 | *bits = (acl_get_perm(permset, ACL_READ) ? 4 : 0) |
| 118 | | (acl_get_perm(permset, ACL_WRITE) ? 2 : 0) |
| 119 | | (acl_get_perm(permset, ACL_EXECUTE) ? 1 : 0); |
| 120 | return 0; |
| 121 | } |
| 122 | |
| 123 | SMB_ACL_T sys_acl_init( int count) |
| 124 | { |
| 125 | return acl_init(count); |
| 126 | } |
| 127 | |
| 128 | int sys_acl_create_entry( SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry) |
| 129 | { |
| 130 | return acl_create_entry(pacl, pentry); |
| 131 | } |
| 132 | |
| 133 | int sys_acl_set_tag_type( SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype) |
| 134 | { |
| 135 | return acl_set_tag_type(entry, tagtype); |
| 136 | } |
| 137 | |
| 138 | int sys_acl_set_qualifier( SMB_ACL_ENTRY_T entry, void *qual) |
| 139 | { |
| 140 | return acl_set_qualifier(entry, qual); |
| 141 | } |
| 142 | |
| 143 | int sys_acl_set_access_bits(SMB_ACL_ENTRY_T entry, uint32 bits) |
| 144 | { |
| 145 | SMB_ACL_PERMSET_T permset; |
| 146 | int rc; |
| 147 | if ((rc = acl_get_permset(entry, &permset)) != 0) |
| 148 | return rc; |
| 149 | acl_clear_perms(permset); |
| 150 | if (bits & 4) |
| 151 | acl_add_perm(permset, ACL_READ); |
| 152 | if (bits & 2) |
| 153 | acl_add_perm(permset, ACL_WRITE); |
| 154 | if (bits & 1) |
| 155 | acl_add_perm(permset, ACL_EXECUTE); |
| 156 | return acl_set_permset(entry, permset); |
| 157 | } |
| 158 | |
| 159 | int sys_acl_valid( SMB_ACL_T theacl ) |
| 160 | { |
| 161 | return acl_valid(theacl); |
| 162 | } |
| 163 | |
| 164 | int sys_acl_set_file(const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) |
| 165 | { |
| 166 | return acl_set_file(name, acltype, theacl); |
| 167 | } |
| 168 | |
| 169 | int sys_acl_set_fd( int fd, SMB_ACL_T theacl) |
| 170 | { |
| 171 | return acl_set_fd(fd, theacl); |
| 172 | } |
| 173 | |
| 174 | int sys_acl_delete_def_file(const char *name) |
| 175 | { |
| 176 | return acl_delete_def_file(name); |
| 177 | } |
| 178 | |
| 179 | int sys_acl_free_acl(SMB_ACL_T the_acl) |
| 180 | { |
| 181 | return acl_free(the_acl); |
| 182 | } |
| 183 | |
| 184 | int sys_acl_free_qualifier(void *qual, UNUSED(SMB_ACL_TAG_T tagtype)) |
| 185 | { |
| 186 | return acl_free(qual); |
| 187 | } |
| 188 | |
| 189 | #elif defined(HAVE_TRU64_ACLS) |
| 190 | /* |
| 191 | * The interface to DEC/Compaq Tru64 UNIX ACLs |
| 192 | * is based on Draft 13 of the POSIX spec which is |
| 193 | * slightly different from the Draft 16 interface. |
| 194 | * |
| 195 | * Also, some of the permset manipulation functions |
| 196 | * such as acl_clear_perm() and acl_add_perm() appear |
| 197 | * to be broken on Tru64 so we have to manipulate |
| 198 | * the permission bits in the permset directly. |
| 199 | */ |
| 200 | int sys_acl_get_entry( SMB_ACL_T the_acl, int entry_id, SMB_ACL_ENTRY_T *entry_p) |
| 201 | { |
| 202 | SMB_ACL_ENTRY_T entry; |
| 203 | |
| 204 | if (entry_id == SMB_ACL_FIRST_ENTRY && acl_first_entry(the_acl) != 0) { |
| 205 | return -1; |
| 206 | } |
| 207 | |
| 208 | errno = 0; |
| 209 | if ((entry = acl_get_entry(the_acl)) != NULL) { |
| 210 | *entry_p = entry; |
| 211 | return 1; |
| 212 | } |
| 213 | |
| 214 | return errno ? -1 : 0; |
| 215 | } |
| 216 | |
| 217 | int sys_acl_get_tag_type( SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p) |
| 218 | { |
| 219 | return acl_get_tag_type( entry_d, tag_type_p); |
| 220 | } |
| 221 | |
| 222 | void *sys_acl_get_qualifier( SMB_ACL_ENTRY_T entry_d) |
| 223 | { |
| 224 | return acl_get_qualifier( entry_d); |
| 225 | } |
| 226 | |
| 227 | SMB_ACL_T sys_acl_get_file( const char *path_p, SMB_ACL_TYPE_T type) |
| 228 | { |
| 229 | return acl_get_file((char *)path_p, type); |
| 230 | } |
| 231 | |
| 232 | #if 0 |
| 233 | SMB_ACL_T sys_acl_get_fd(int fd) |
| 234 | { |
| 235 | return acl_get_fd(fd, ACL_TYPE_ACCESS); |
| 236 | } |
| 237 | #endif |
| 238 | |
| 239 | int sys_acl_get_access_bits(SMB_ACL_ENTRY_T entry_d, uint32 *bits) |
| 240 | { |
| 241 | SMB_ACL_PERMSET_T permset; |
| 242 | int rc; |
| 243 | if ((rc = acl_get_permset(entry_d, &permset)) != 0) |
| 244 | return rc; |
| 245 | *bits = *permset & 7; /* Tru64 doesn't have acl_get_perm() */ |
| 246 | return 0; |
| 247 | } |
| 248 | |
| 249 | SMB_ACL_T sys_acl_init( int count) |
| 250 | { |
| 251 | return acl_init(count); |
| 252 | } |
| 253 | |
| 254 | int sys_acl_create_entry( SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry) |
| 255 | { |
| 256 | SMB_ACL_ENTRY_T entry; |
| 257 | |
| 258 | if ((entry = acl_create_entry(pacl)) == NULL) { |
| 259 | return -1; |
| 260 | } |
| 261 | |
| 262 | *pentry = entry; |
| 263 | return 0; |
| 264 | } |
| 265 | |
| 266 | int sys_acl_set_tag_type( SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype) |
| 267 | { |
| 268 | return acl_set_tag_type(entry, tagtype); |
| 269 | } |
| 270 | |
| 271 | int sys_acl_set_qualifier( SMB_ACL_ENTRY_T entry, void *qual) |
| 272 | { |
| 273 | return acl_set_qualifier(entry, qual); |
| 274 | } |
| 275 | |
| 276 | int sys_acl_set_access_bits(SMB_ACL_ENTRY_T entry, uint32 bits) |
| 277 | { |
| 278 | SMB_ACL_PERMSET_T permset; |
| 279 | int rc; |
| 280 | if ((rc = acl_get_permset(entry, &permset)) != 0) |
| 281 | return rc; |
| 282 | *permset = bits & 7; |
| 283 | return acl_set_permset(entry, permset); |
| 284 | } |
| 285 | |
| 286 | int sys_acl_valid( SMB_ACL_T theacl ) |
| 287 | { |
| 288 | acl_entry_t entry; |
| 289 | |
| 290 | return acl_valid(theacl, &entry); |
| 291 | } |
| 292 | |
| 293 | int sys_acl_set_file( const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) |
| 294 | { |
| 295 | return acl_set_file((char *)name, acltype, theacl); |
| 296 | } |
| 297 | |
| 298 | int sys_acl_set_fd( int fd, SMB_ACL_T theacl) |
| 299 | { |
| 300 | return acl_set_fd(fd, ACL_TYPE_ACCESS, theacl); |
| 301 | } |
| 302 | |
| 303 | int sys_acl_delete_def_file(const char *name) |
| 304 | { |
| 305 | return acl_delete_def_file((char *)name); |
| 306 | } |
| 307 | |
| 308 | int sys_acl_free_acl(SMB_ACL_T the_acl) |
| 309 | { |
| 310 | return acl_free(the_acl); |
| 311 | } |
| 312 | |
| 313 | int sys_acl_free_qualifier(void *qual, SMB_ACL_TAG_T tagtype) |
| 314 | { |
| 315 | return acl_free_qualifier(qual, tagtype); |
| 316 | } |
| 317 | |
| 318 | #elif defined(HAVE_UNIXWARE_ACLS) || defined(HAVE_SOLARIS_ACLS) |
| 319 | |
| 320 | /* |
| 321 | * Donated by Michael Davidson <md@sco.COM> for UnixWare / OpenUNIX. |
| 322 | * Modified by Toomas Soome <tsoome@ut.ee> for Solaris. |
| 323 | */ |
| 324 | |
| 325 | /* |
| 326 | * Note that while this code implements sufficient functionality |
| 327 | * to support the sys_acl_* interfaces it does not provide all |
| 328 | * of the semantics of the POSIX ACL interfaces. |
| 329 | * |
| 330 | * In particular, an ACL entry descriptor (SMB_ACL_ENTRY_T) returned |
| 331 | * from a call to sys_acl_get_entry() should not be assumed to be |
| 332 | * valid after calling any of the following functions, which may |
| 333 | * reorder the entries in the ACL. |
| 334 | * |
| 335 | * sys_acl_valid() |
| 336 | * sys_acl_set_file() |
| 337 | * sys_acl_set_fd() |
| 338 | */ |
| 339 | |
| 340 | /* |
| 341 | * The only difference between Solaris and UnixWare / OpenUNIX is |
| 342 | * that the #defines for the ACL operations have different names |
| 343 | */ |
| 344 | #if defined(HAVE_UNIXWARE_ACLS) |
| 345 | |
| 346 | #define SETACL ACL_SET |
| 347 | #define GETACL ACL_GET |
| 348 | #define GETACLCNT ACL_CNT |
| 349 | |
| 350 | #endif |
| 351 | |
| 352 | |
| 353 | int sys_acl_get_entry(SMB_ACL_T acl_d, int entry_id, SMB_ACL_ENTRY_T *entry_p) |
| 354 | { |
| 355 | if (entry_id != SMB_ACL_FIRST_ENTRY && entry_id != SMB_ACL_NEXT_ENTRY) { |
| 356 | errno = EINVAL; |
| 357 | return -1; |
| 358 | } |
| 359 | |
| 360 | if (entry_p == NULL) { |
| 361 | errno = EINVAL; |
| 362 | return -1; |
| 363 | } |
| 364 | |
| 365 | if (entry_id == SMB_ACL_FIRST_ENTRY) { |
| 366 | acl_d->next = 0; |
| 367 | } |
| 368 | |
| 369 | if (acl_d->next < 0) { |
| 370 | errno = EINVAL; |
| 371 | return -1; |
| 372 | } |
| 373 | |
| 374 | if (acl_d->next >= acl_d->count) { |
| 375 | return 0; |
| 376 | } |
| 377 | |
| 378 | *entry_p = &acl_d->acl[acl_d->next++]; |
| 379 | |
| 380 | return 1; |
| 381 | } |
| 382 | |
| 383 | int sys_acl_get_tag_type(SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *type_p) |
| 384 | { |
| 385 | *type_p = entry_d->a_type; |
| 386 | |
| 387 | return 0; |
| 388 | } |
| 389 | |
| 390 | void *sys_acl_get_qualifier(SMB_ACL_ENTRY_T entry_d) |
| 391 | { |
| 392 | if (entry_d->a_type != SMB_ACL_USER |
| 393 | && entry_d->a_type != SMB_ACL_GROUP) { |
| 394 | errno = EINVAL; |
| 395 | return NULL; |
| 396 | } |
| 397 | |
| 398 | return &entry_d->a_id; |
| 399 | } |
| 400 | |
| 401 | /* |
| 402 | * There is no way of knowing what size the ACL returned by |
| 403 | * GETACL will be unless you first call GETACLCNT which means |
| 404 | * making an additional system call. |
| 405 | * |
| 406 | * In the hope of avoiding the cost of the additional system |
| 407 | * call in most cases, we initially allocate enough space for |
| 408 | * an ACL with INITIAL_ACL_SIZE entries. If this turns out to |
| 409 | * be too small then we use GETACLCNT to find out the actual |
| 410 | * size, reallocate the ACL buffer, and then call GETACL again. |
| 411 | */ |
| 412 | |
| 413 | #define INITIAL_ACL_SIZE 16 |
| 414 | |
| 415 | SMB_ACL_T sys_acl_get_file(const char *path_p, SMB_ACL_TYPE_T type) |
| 416 | { |
| 417 | SMB_ACL_T acl_d; |
| 418 | int count; /* # of ACL entries allocated */ |
| 419 | int naccess; /* # of access ACL entries */ |
| 420 | int ndefault; /* # of default ACL entries */ |
| 421 | |
| 422 | if (type != SMB_ACL_TYPE_ACCESS && type != SMB_ACL_TYPE_DEFAULT) { |
| 423 | errno = EINVAL; |
| 424 | return NULL; |
| 425 | } |
| 426 | |
| 427 | count = INITIAL_ACL_SIZE; |
| 428 | if ((acl_d = sys_acl_init(count)) == NULL) { |
| 429 | return NULL; |
| 430 | } |
| 431 | |
| 432 | /* |
| 433 | * If there isn't enough space for the ACL entries we use |
| 434 | * GETACLCNT to determine the actual number of ACL entries |
| 435 | * reallocate and try again. This is in a loop because it |
| 436 | * is possible that someone else could modify the ACL and |
| 437 | * increase the number of entries between the call to |
| 438 | * GETACLCNT and the call to GETACL. |
| 439 | */ |
| 440 | while ((count = acl(path_p, GETACL, count, &acl_d->acl[0])) < 0 |
| 441 | && errno == ENOSPC) { |
| 442 | |
| 443 | sys_acl_free_acl(acl_d); |
| 444 | |
| 445 | if ((count = acl(path_p, GETACLCNT, 0, NULL)) < 0) { |
| 446 | return NULL; |
| 447 | } |
| 448 | |
| 449 | if ((acl_d = sys_acl_init(count)) == NULL) { |
| 450 | return NULL; |
| 451 | } |
| 452 | } |
| 453 | |
| 454 | if (count < 0) { |
| 455 | sys_acl_free_acl(acl_d); |
| 456 | return NULL; |
| 457 | } |
| 458 | |
| 459 | /* |
| 460 | * calculate the number of access and default ACL entries |
| 461 | * |
| 462 | * Note: we assume that the acl() system call returned a |
| 463 | * well formed ACL which is sorted so that all of the |
| 464 | * access ACL entries preceed any default ACL entries |
| 465 | */ |
| 466 | for (naccess = 0; naccess < count; naccess++) { |
| 467 | if (acl_d->acl[naccess].a_type & ACL_DEFAULT) |
| 468 | break; |
| 469 | } |
| 470 | ndefault = count - naccess; |
| 471 | |
| 472 | /* |
| 473 | * if the caller wants the default ACL we have to copy |
| 474 | * the entries down to the start of the acl[] buffer |
| 475 | * and mask out the ACL_DEFAULT flag from the type field |
| 476 | */ |
| 477 | if (type == SMB_ACL_TYPE_DEFAULT) { |
| 478 | int i, j; |
| 479 | |
| 480 | for (i = 0, j = naccess; i < ndefault; i++, j++) { |
| 481 | acl_d->acl[i] = acl_d->acl[j]; |
| 482 | acl_d->acl[i].a_type &= ~ACL_DEFAULT; |
| 483 | } |
| 484 | |
| 485 | acl_d->count = ndefault; |
| 486 | } else { |
| 487 | acl_d->count = naccess; |
| 488 | } |
| 489 | |
| 490 | return acl_d; |
| 491 | } |
| 492 | |
| 493 | #if 0 |
| 494 | SMB_ACL_T sys_acl_get_fd(int fd) |
| 495 | { |
| 496 | SMB_ACL_T acl_d; |
| 497 | int count; /* # of ACL entries allocated */ |
| 498 | int naccess; /* # of access ACL entries */ |
| 499 | |
| 500 | count = INITIAL_ACL_SIZE; |
| 501 | if ((acl_d = sys_acl_init(count)) == NULL) { |
| 502 | return NULL; |
| 503 | } |
| 504 | |
| 505 | while ((count = facl(fd, GETACL, count, &acl_d->acl[0])) < 0 |
| 506 | && errno == ENOSPC) { |
| 507 | |
| 508 | sys_acl_free_acl(acl_d); |
| 509 | |
| 510 | if ((count = facl(fd, GETACLCNT, 0, NULL)) < 0) { |
| 511 | return NULL; |
| 512 | } |
| 513 | |
| 514 | if ((acl_d = sys_acl_init(count)) == NULL) { |
| 515 | return NULL; |
| 516 | } |
| 517 | } |
| 518 | |
| 519 | if (count < 0) { |
| 520 | sys_acl_free_acl(acl_d); |
| 521 | return NULL; |
| 522 | } |
| 523 | |
| 524 | /* |
| 525 | * calculate the number of access ACL entries |
| 526 | */ |
| 527 | for (naccess = 0; naccess < count; naccess++) { |
| 528 | if (acl_d->acl[naccess].a_type & ACL_DEFAULT) |
| 529 | break; |
| 530 | } |
| 531 | |
| 532 | acl_d->count = naccess; |
| 533 | |
| 534 | return acl_d; |
| 535 | } |
| 536 | #endif |
| 537 | |
| 538 | int sys_acl_get_access_bits(SMB_ACL_ENTRY_T entry_d, uint32 *bits) |
| 539 | { |
| 540 | *bits = entry_d->a_perm; |
| 541 | return 0; |
| 542 | } |
| 543 | |
| 544 | SMB_ACL_T sys_acl_init(int count) |
| 545 | { |
| 546 | SMB_ACL_T a; |
| 547 | |
| 548 | if (count < 0) { |
| 549 | errno = EINVAL; |
| 550 | return NULL; |
| 551 | } |
| 552 | |
| 553 | /* |
| 554 | * note that since the definition of the structure pointed |
| 555 | * to by the SMB_ACL_T includes the first element of the |
| 556 | * acl[] array, this actually allocates an ACL with room |
| 557 | * for (count+1) entries |
| 558 | */ |
| 559 | if ((a = (SMB_ACL_T)SMB_MALLOC(sizeof(struct SMB_ACL_T) + count * sizeof(struct acl))) == NULL) { |
| 560 | errno = ENOMEM; |
| 561 | return NULL; |
| 562 | } |
| 563 | |
| 564 | a->size = count + 1; |
| 565 | a->count = 0; |
| 566 | a->next = -1; |
| 567 | |
| 568 | return a; |
| 569 | } |
| 570 | |
| 571 | |
| 572 | int sys_acl_create_entry(SMB_ACL_T *acl_p, SMB_ACL_ENTRY_T *entry_p) |
| 573 | { |
| 574 | SMB_ACL_T acl_d; |
| 575 | SMB_ACL_ENTRY_T entry_d; |
| 576 | |
| 577 | if (acl_p == NULL || entry_p == NULL || (acl_d = *acl_p) == NULL) { |
| 578 | errno = EINVAL; |
| 579 | return -1; |
| 580 | } |
| 581 | |
| 582 | if (acl_d->count >= acl_d->size) { |
| 583 | errno = ENOSPC; |
| 584 | return -1; |
| 585 | } |
| 586 | |
| 587 | entry_d = &acl_d->acl[acl_d->count++]; |
| 588 | entry_d->a_type = 0; |
| 589 | entry_d->a_id = -1; |
| 590 | entry_d->a_perm = 0; |
| 591 | *entry_p = entry_d; |
| 592 | |
| 593 | return 0; |
| 594 | } |
| 595 | |
| 596 | int sys_acl_set_tag_type(SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T tag_type) |
| 597 | { |
| 598 | switch (tag_type) { |
| 599 | case SMB_ACL_USER: |
| 600 | case SMB_ACL_USER_OBJ: |
| 601 | case SMB_ACL_GROUP: |
| 602 | case SMB_ACL_GROUP_OBJ: |
| 603 | case SMB_ACL_OTHER: |
| 604 | case SMB_ACL_MASK: |
| 605 | entry_d->a_type = tag_type; |
| 606 | break; |
| 607 | default: |
| 608 | errno = EINVAL; |
| 609 | return -1; |
| 610 | } |
| 611 | |
| 612 | return 0; |
| 613 | } |
| 614 | |
| 615 | int sys_acl_set_qualifier(SMB_ACL_ENTRY_T entry_d, void *qual_p) |
| 616 | { |
| 617 | if (entry_d->a_type != SMB_ACL_GROUP |
| 618 | && entry_d->a_type != SMB_ACL_USER) { |
| 619 | errno = EINVAL; |
| 620 | return -1; |
| 621 | } |
| 622 | |
| 623 | entry_d->a_id = *((id_t *)qual_p); |
| 624 | |
| 625 | return 0; |
| 626 | } |
| 627 | |
| 628 | int sys_acl_set_access_bits(SMB_ACL_ENTRY_T entry_d, uint32 bits) |
| 629 | { |
| 630 | entry_d->a_perm = bits; |
| 631 | return 0; |
| 632 | } |
| 633 | |
| 634 | /* |
| 635 | * sort the ACL and check it for validity |
| 636 | * |
| 637 | * if it's a minimal ACL with only 4 entries then we |
| 638 | * need to recalculate the mask permissions to make |
| 639 | * sure that they are the same as the GROUP_OBJ |
| 640 | * permissions as required by the UnixWare acl() system call. |
| 641 | * |
| 642 | * (note: since POSIX allows minimal ACLs which only contain |
| 643 | * 3 entries - ie there is no mask entry - we should, in theory, |
| 644 | * check for this and add a mask entry if necessary - however |
| 645 | * we "know" that the caller of this interface always specifies |
| 646 | * a mask so, in practice "this never happens" (tm) - if it *does* |
| 647 | * happen aclsort() will fail and return an error and someone will |
| 648 | * have to fix it ...) |
| 649 | */ |
| 650 | |
| 651 | static int acl_sort(SMB_ACL_T acl_d) |
| 652 | { |
| 653 | int fixmask = (acl_d->count <= 4); |
| 654 | |
| 655 | if (aclsort(acl_d->count, fixmask, acl_d->acl) != 0) { |
| 656 | errno = EINVAL; |
| 657 | return -1; |
| 658 | } |
| 659 | return 0; |
| 660 | } |
| 661 | |
| 662 | int sys_acl_valid(SMB_ACL_T acl_d) |
| 663 | { |
| 664 | return acl_sort(acl_d); |
| 665 | } |
| 666 | |
| 667 | int sys_acl_set_file(const char *name, SMB_ACL_TYPE_T type, SMB_ACL_T acl_d) |
| 668 | { |
| 669 | struct stat s; |
| 670 | struct acl *acl_p; |
| 671 | int acl_count; |
| 672 | struct acl *acl_buf = NULL; |
| 673 | int ret; |
| 674 | |
| 675 | if (type != SMB_ACL_TYPE_ACCESS && type != SMB_ACL_TYPE_DEFAULT) { |
| 676 | errno = EINVAL; |
| 677 | return -1; |
| 678 | } |
| 679 | |
| 680 | if (acl_sort(acl_d) != 0) { |
| 681 | return -1; |
| 682 | } |
| 683 | |
| 684 | acl_p = &acl_d->acl[0]; |
| 685 | acl_count = acl_d->count; |
| 686 | |
| 687 | /* |
| 688 | * if it's a directory there is extra work to do |
| 689 | * since the acl() system call will replace both |
| 690 | * the access ACLs and the default ACLs (if any) |
| 691 | */ |
| 692 | if (stat(name, &s) != 0) { |
| 693 | return -1; |
| 694 | } |
| 695 | if (S_ISDIR(s.st_mode)) { |
| 696 | SMB_ACL_T acc_acl; |
| 697 | SMB_ACL_T def_acl; |
| 698 | SMB_ACL_T tmp_acl; |
| 699 | int i; |
| 700 | |
| 701 | if (type == SMB_ACL_TYPE_ACCESS) { |
| 702 | acc_acl = acl_d; |
| 703 | def_acl = tmp_acl = sys_acl_get_file(name, SMB_ACL_TYPE_DEFAULT); |
| 704 | |
| 705 | } else { |
| 706 | def_acl = acl_d; |
| 707 | acc_acl = tmp_acl = sys_acl_get_file(name, SMB_ACL_TYPE_ACCESS); |
| 708 | } |
| 709 | |
| 710 | if (tmp_acl == NULL) { |
| 711 | return -1; |
| 712 | } |
| 713 | |
| 714 | /* |
| 715 | * allocate a temporary buffer for the complete ACL |
| 716 | */ |
| 717 | acl_count = acc_acl->count + def_acl->count; |
| 718 | acl_p = acl_buf = SMB_MALLOC_ARRAY(struct acl, acl_count); |
| 719 | |
| 720 | if (acl_buf == NULL) { |
| 721 | sys_acl_free_acl(tmp_acl); |
| 722 | errno = ENOMEM; |
| 723 | return -1; |
| 724 | } |
| 725 | |
| 726 | /* |
| 727 | * copy the access control and default entries into the buffer |
| 728 | */ |
| 729 | memcpy(&acl_buf[0], &acc_acl->acl[0], |
| 730 | acc_acl->count * sizeof(acl_buf[0])); |
| 731 | |
| 732 | memcpy(&acl_buf[acc_acl->count], &def_acl->acl[0], |
| 733 | def_acl->count * sizeof(acl_buf[0])); |
| 734 | |
| 735 | /* |
| 736 | * set the ACL_DEFAULT flag on the default entries |
| 737 | */ |
| 738 | for (i = acc_acl->count; i < acl_count; i++) { |
| 739 | acl_buf[i].a_type |= ACL_DEFAULT; |
| 740 | } |
| 741 | |
| 742 | sys_acl_free_acl(tmp_acl); |
| 743 | |
| 744 | } else if (type != SMB_ACL_TYPE_ACCESS) { |
| 745 | errno = EINVAL; |
| 746 | return -1; |
| 747 | } |
| 748 | |
| 749 | ret = acl(name, SETACL, acl_count, acl_p); |
| 750 | |
| 751 | SAFE_FREE(acl_buf); |
| 752 | |
| 753 | return ret; |
| 754 | } |
| 755 | |
| 756 | int sys_acl_set_fd(int fd, SMB_ACL_T acl_d) |
| 757 | { |
| 758 | if (acl_sort(acl_d) != 0) { |
| 759 | return -1; |
| 760 | } |
| 761 | |
| 762 | return facl(fd, SETACL, acl_d->count, &acl_d->acl[0]); |
| 763 | } |
| 764 | |
| 765 | int sys_acl_delete_def_file(const char *path) |
| 766 | { |
| 767 | SMB_ACL_T acl_d; |
| 768 | int ret; |
| 769 | |
| 770 | /* |
| 771 | * fetching the access ACL and rewriting it has |
| 772 | * the effect of deleting the default ACL |
| 773 | */ |
| 774 | if ((acl_d = sys_acl_get_file(path, SMB_ACL_TYPE_ACCESS)) == NULL) { |
| 775 | return -1; |
| 776 | } |
| 777 | |
| 778 | ret = acl(path, SETACL, acl_d->count, acl_d->acl); |
| 779 | |
| 780 | sys_acl_free_acl(acl_d); |
| 781 | |
| 782 | return ret; |
| 783 | } |
| 784 | |
| 785 | int sys_acl_free_acl(SMB_ACL_T acl_d) |
| 786 | { |
| 787 | SAFE_FREE(acl_d); |
| 788 | return 0; |
| 789 | } |
| 790 | |
| 791 | int sys_acl_free_qualifier(UNUSED(void *qual), UNUSED(SMB_ACL_TAG_T tagtype)) |
| 792 | { |
| 793 | return 0; |
| 794 | } |
| 795 | |
| 796 | #elif defined(HAVE_HPUX_ACLS) |
| 797 | #include <dl.h> |
| 798 | |
| 799 | /* |
| 800 | * Based on the Solaris/SCO code - with modifications. |
| 801 | */ |
| 802 | |
| 803 | /* |
| 804 | * Note that while this code implements sufficient functionality |
| 805 | * to support the sys_acl_* interfaces it does not provide all |
| 806 | * of the semantics of the POSIX ACL interfaces. |
| 807 | * |
| 808 | * In particular, an ACL entry descriptor (SMB_ACL_ENTRY_T) returned |
| 809 | * from a call to sys_acl_get_entry() should not be assumed to be |
| 810 | * valid after calling any of the following functions, which may |
| 811 | * reorder the entries in the ACL. |
| 812 | * |
| 813 | * sys_acl_valid() |
| 814 | * sys_acl_set_file() |
| 815 | * sys_acl_set_fd() |
| 816 | */ |
| 817 | |
| 818 | /* This checks if the POSIX ACL system call is defined */ |
| 819 | /* which basically corresponds to whether JFS 3.3 or */ |
| 820 | /* higher is installed. If acl() was called when it */ |
| 821 | /* isn't defined, it causes the process to core dump */ |
| 822 | /* so it is important to check this and avoid acl() */ |
| 823 | /* calls if it isn't there. */ |
| 824 | |
| 825 | static BOOL hpux_acl_call_presence(void) |
| 826 | { |
| 827 | |
| 828 | shl_t handle = NULL; |
| 829 | void *value; |
| 830 | int ret_val=0; |
| 831 | static BOOL already_checked=0; |
| 832 | |
| 833 | if(already_checked) |
| 834 | return True; |
| 835 | |
| 836 | |
| 837 | ret_val = shl_findsym(&handle, "acl", TYPE_PROCEDURE, &value); |
| 838 | |
| 839 | if(ret_val != 0) { |
| 840 | DEBUG(5, ("hpux_acl_call_presence: shl_findsym() returned %d, errno = %d, error %s\n", |
| 841 | ret_val, errno, strerror(errno))); |
| 842 | DEBUG(5,("hpux_acl_call_presence: acl() system call is not present. Check if you have JFS 3.3 and above?\n")); |
| 843 | return False; |
| 844 | } |
| 845 | |
| 846 | DEBUG(10,("hpux_acl_call_presence: acl() system call is present. We have JFS 3.3 or above \n")); |
| 847 | |
| 848 | already_checked = True; |
| 849 | return True; |
| 850 | } |
| 851 | |
| 852 | int sys_acl_get_entry(SMB_ACL_T acl_d, int entry_id, SMB_ACL_ENTRY_T *entry_p) |
| 853 | { |
| 854 | if (entry_id != SMB_ACL_FIRST_ENTRY && entry_id != SMB_ACL_NEXT_ENTRY) { |
| 855 | errno = EINVAL; |
| 856 | return -1; |
| 857 | } |
| 858 | |
| 859 | if (entry_p == NULL) { |
| 860 | errno = EINVAL; |
| 861 | return -1; |
| 862 | } |
| 863 | |
| 864 | if (entry_id == SMB_ACL_FIRST_ENTRY) { |
| 865 | acl_d->next = 0; |
| 866 | } |
| 867 | |
| 868 | if (acl_d->next < 0) { |
| 869 | errno = EINVAL; |
| 870 | return -1; |
| 871 | } |
| 872 | |
| 873 | if (acl_d->next >= acl_d->count) { |
| 874 | return 0; |
| 875 | } |
| 876 | |
| 877 | *entry_p = &acl_d->acl[acl_d->next++]; |
| 878 | |
| 879 | return 1; |
| 880 | } |
| 881 | |
| 882 | int sys_acl_get_tag_type(SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *type_p) |
| 883 | { |
| 884 | *type_p = entry_d->a_type; |
| 885 | |
| 886 | return 0; |
| 887 | } |
| 888 | |
| 889 | void *sys_acl_get_qualifier(SMB_ACL_ENTRY_T entry_d) |
| 890 | { |
| 891 | if (entry_d->a_type != SMB_ACL_USER |
| 892 | && entry_d->a_type != SMB_ACL_GROUP) { |
| 893 | errno = EINVAL; |
| 894 | return NULL; |
| 895 | } |
| 896 | |
| 897 | return &entry_d->a_id; |
| 898 | } |
| 899 | |
| 900 | /* |
| 901 | * There is no way of knowing what size the ACL returned by |
| 902 | * ACL_GET will be unless you first call ACL_CNT which means |
| 903 | * making an additional system call. |
| 904 | * |
| 905 | * In the hope of avoiding the cost of the additional system |
| 906 | * call in most cases, we initially allocate enough space for |
| 907 | * an ACL with INITIAL_ACL_SIZE entries. If this turns out to |
| 908 | * be too small then we use ACL_CNT to find out the actual |
| 909 | * size, reallocate the ACL buffer, and then call ACL_GET again. |
| 910 | */ |
| 911 | |
| 912 | #define INITIAL_ACL_SIZE 16 |
| 913 | |
| 914 | SMB_ACL_T sys_acl_get_file(const char *path_p, SMB_ACL_TYPE_T type) |
| 915 | { |
| 916 | SMB_ACL_T acl_d; |
| 917 | int count; /* # of ACL entries allocated */ |
| 918 | int naccess; /* # of access ACL entries */ |
| 919 | int ndefault; /* # of default ACL entries */ |
| 920 | |
| 921 | if(hpux_acl_call_presence() == False) { |
| 922 | /* Looks like we don't have the acl() system call on HPUX. |
| 923 | * May be the system doesn't have the latest version of JFS. |
| 924 | */ |
| 925 | return NULL; |
| 926 | } |
| 927 | |
| 928 | if (type != SMB_ACL_TYPE_ACCESS && type != SMB_ACL_TYPE_DEFAULT) { |
| 929 | errno = EINVAL; |
| 930 | return NULL; |
| 931 | } |
| 932 | |
| 933 | count = INITIAL_ACL_SIZE; |
| 934 | if ((acl_d = sys_acl_init(count)) == NULL) { |
| 935 | return NULL; |
| 936 | } |
| 937 | |
| 938 | /* |
| 939 | * If there isn't enough space for the ACL entries we use |
| 940 | * ACL_CNT to determine the actual number of ACL entries |
| 941 | * reallocate and try again. This is in a loop because it |
| 942 | * is possible that someone else could modify the ACL and |
| 943 | * increase the number of entries between the call to |
| 944 | * ACL_CNT and the call to ACL_GET. |
| 945 | */ |
| 946 | while ((count = acl(path_p, ACL_GET, count, &acl_d->acl[0])) < 0 && errno == ENOSPC) { |
| 947 | |
| 948 | sys_acl_free_acl(acl_d); |
| 949 | |
| 950 | if ((count = acl(path_p, ACL_CNT, 0, NULL)) < 0) { |
| 951 | return NULL; |
| 952 | } |
| 953 | |
| 954 | if ((acl_d = sys_acl_init(count)) == NULL) { |
| 955 | return NULL; |
| 956 | } |
| 957 | } |
| 958 | |
| 959 | if (count < 0) { |
| 960 | sys_acl_free_acl(acl_d); |
| 961 | return NULL; |
| 962 | } |
| 963 | |
| 964 | /* |
| 965 | * calculate the number of access and default ACL entries |
| 966 | * |
| 967 | * Note: we assume that the acl() system call returned a |
| 968 | * well formed ACL which is sorted so that all of the |
| 969 | * access ACL entries preceed any default ACL entries |
| 970 | */ |
| 971 | for (naccess = 0; naccess < count; naccess++) { |
| 972 | if (acl_d->acl[naccess].a_type & ACL_DEFAULT) |
| 973 | break; |
| 974 | } |
| 975 | ndefault = count - naccess; |
| 976 | |
| 977 | /* |
| 978 | * if the caller wants the default ACL we have to copy |
| 979 | * the entries down to the start of the acl[] buffer |
| 980 | * and mask out the ACL_DEFAULT flag from the type field |
| 981 | */ |
| 982 | if (type == SMB_ACL_TYPE_DEFAULT) { |
| 983 | int i, j; |
| 984 | |
| 985 | for (i = 0, j = naccess; i < ndefault; i++, j++) { |
| 986 | acl_d->acl[i] = acl_d->acl[j]; |
| 987 | acl_d->acl[i].a_type &= ~ACL_DEFAULT; |
| 988 | } |
| 989 | |
| 990 | acl_d->count = ndefault; |
| 991 | } else { |
| 992 | acl_d->count = naccess; |
| 993 | } |
| 994 | |
| 995 | return acl_d; |
| 996 | } |
| 997 | |
| 998 | #if 0 |
| 999 | SMB_ACL_T sys_acl_get_fd(int fd) |
| 1000 | { |
| 1001 | /* |
| 1002 | * HPUX doesn't have the facl call. Fake it using the path.... JRA. |
| 1003 | */ |
| 1004 | |
| 1005 | files_struct *fsp = file_find_fd(fd); |
| 1006 | |
| 1007 | if (fsp == NULL) { |
| 1008 | errno = EBADF; |
| 1009 | return NULL; |
| 1010 | } |
| 1011 | |
| 1012 | /* |
| 1013 | * We know we're in the same conn context. So we |
| 1014 | * can use the relative path. |
| 1015 | */ |
| 1016 | |
| 1017 | return sys_acl_get_file(fsp->fsp_name, SMB_ACL_TYPE_ACCESS); |
| 1018 | } |
| 1019 | #endif |
| 1020 | |
| 1021 | int sys_acl_get_access_bits(SMB_ACL_ENTRY_T entry_d, uint32 *bits) |
| 1022 | { |
| 1023 | *bits = entry_d->a_perm; |
| 1024 | |
| 1025 | return 0; |
| 1026 | } |
| 1027 | |
| 1028 | SMB_ACL_T sys_acl_init(int count) |
| 1029 | { |
| 1030 | SMB_ACL_T a; |
| 1031 | |
| 1032 | if (count < 0) { |
| 1033 | errno = EINVAL; |
| 1034 | return NULL; |
| 1035 | } |
| 1036 | |
| 1037 | /* |
| 1038 | * note that since the definition of the structure pointed |
| 1039 | * to by the SMB_ACL_T includes the first element of the |
| 1040 | * acl[] array, this actually allocates an ACL with room |
| 1041 | * for (count+1) entries |
| 1042 | */ |
| 1043 | if ((a = SMB_MALLOC(sizeof(struct SMB_ACL_T) + count * sizeof(struct acl))) == NULL) { |
| 1044 | errno = ENOMEM; |
| 1045 | return NULL; |
| 1046 | } |
| 1047 | |
| 1048 | a->size = count + 1; |
| 1049 | a->count = 0; |
| 1050 | a->next = -1; |
| 1051 | |
| 1052 | return a; |
| 1053 | } |
| 1054 | |
| 1055 | |
| 1056 | int sys_acl_create_entry(SMB_ACL_T *acl_p, SMB_ACL_ENTRY_T *entry_p) |
| 1057 | { |
| 1058 | SMB_ACL_T acl_d; |
| 1059 | SMB_ACL_ENTRY_T entry_d; |
| 1060 | |
| 1061 | if (acl_p == NULL || entry_p == NULL || (acl_d = *acl_p) == NULL) { |
| 1062 | errno = EINVAL; |
| 1063 | return -1; |
| 1064 | } |
| 1065 | |
| 1066 | if (acl_d->count >= acl_d->size) { |
| 1067 | errno = ENOSPC; |
| 1068 | return -1; |
| 1069 | } |
| 1070 | |
| 1071 | entry_d = &acl_d->acl[acl_d->count++]; |
| 1072 | entry_d->a_type = 0; |
| 1073 | entry_d->a_id = -1; |
| 1074 | entry_d->a_perm = 0; |
| 1075 | *entry_p = entry_d; |
| 1076 | |
| 1077 | return 0; |
| 1078 | } |
| 1079 | |
| 1080 | int sys_acl_set_tag_type(SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T tag_type) |
| 1081 | { |
| 1082 | switch (tag_type) { |
| 1083 | case SMB_ACL_USER: |
| 1084 | case SMB_ACL_USER_OBJ: |
| 1085 | case SMB_ACL_GROUP: |
| 1086 | case SMB_ACL_GROUP_OBJ: |
| 1087 | case SMB_ACL_OTHER: |
| 1088 | case SMB_ACL_MASK: |
| 1089 | entry_d->a_type = tag_type; |
| 1090 | break; |
| 1091 | default: |
| 1092 | errno = EINVAL; |
| 1093 | return -1; |
| 1094 | } |
| 1095 | |
| 1096 | return 0; |
| 1097 | } |
| 1098 | |
| 1099 | int sys_acl_set_qualifier(SMB_ACL_ENTRY_T entry_d, void *qual_p) |
| 1100 | { |
| 1101 | if (entry_d->a_type != SMB_ACL_GROUP |
| 1102 | && entry_d->a_type != SMB_ACL_USER) { |
| 1103 | errno = EINVAL; |
| 1104 | return -1; |
| 1105 | } |
| 1106 | |
| 1107 | entry_d->a_id = *((id_t *)qual_p); |
| 1108 | |
| 1109 | return 0; |
| 1110 | } |
| 1111 | |
| 1112 | int sys_acl_set_access_bits(SMB_ACL_ENTRY_T entry_d, uint32 bits) |
| 1113 | { |
| 1114 | entry_d->a_perm = bits; |
| 1115 | |
| 1116 | return 0; |
| 1117 | } |
| 1118 | |
| 1119 | /* Structure to capture the count for each type of ACE. */ |
| 1120 | |
| 1121 | struct hpux_acl_types { |
| 1122 | int n_user; |
| 1123 | int n_def_user; |
| 1124 | int n_user_obj; |
| 1125 | int n_def_user_obj; |
| 1126 | |
| 1127 | int n_group; |
| 1128 | int n_def_group; |
| 1129 | int n_group_obj; |
| 1130 | int n_def_group_obj; |
| 1131 | |
| 1132 | int n_other; |
| 1133 | int n_other_obj; |
| 1134 | int n_def_other_obj; |
| 1135 | |
| 1136 | int n_class_obj; |
| 1137 | int n_def_class_obj; |
| 1138 | |
| 1139 | int n_illegal_obj; |
| 1140 | }; |
| 1141 | |
| 1142 | /* count_obj: |
| 1143 | * Counts the different number of objects in a given array of ACL |
| 1144 | * structures. |
| 1145 | * Inputs: |
| 1146 | * |
| 1147 | * acl_count - Count of ACLs in the array of ACL strucutres. |
| 1148 | * aclp - Array of ACL structures. |
| 1149 | * acl_type_count - Pointer to acl_types structure. Should already be |
| 1150 | * allocated. |
| 1151 | * Output: |
| 1152 | * |
| 1153 | * acl_type_count - This structure is filled up with counts of various |
| 1154 | * acl types. |
| 1155 | */ |
| 1156 | |
| 1157 | static int hpux_count_obj(int acl_count, struct acl *aclp, struct hpux_acl_types *acl_type_count) |
| 1158 | { |
| 1159 | int i; |
| 1160 | |
| 1161 | memset(acl_type_count, 0, sizeof(struct hpux_acl_types)); |
| 1162 | |
| 1163 | for(i=0;i<acl_count;i++) { |
| 1164 | switch(aclp[i].a_type) { |
| 1165 | case USER: |
| 1166 | acl_type_count->n_user++; |
| 1167 | break; |
| 1168 | case USER_OBJ: |
| 1169 | acl_type_count->n_user_obj++; |
| 1170 | break; |
| 1171 | case DEF_USER_OBJ: |
| 1172 | acl_type_count->n_def_user_obj++; |
| 1173 | break; |
| 1174 | case GROUP: |
| 1175 | acl_type_count->n_group++; |
| 1176 | break; |
| 1177 | case GROUP_OBJ: |
| 1178 | acl_type_count->n_group_obj++; |
| 1179 | break; |
| 1180 | case DEF_GROUP_OBJ: |
| 1181 | acl_type_count->n_def_group_obj++; |
| 1182 | break; |
| 1183 | case OTHER_OBJ: |
| 1184 | acl_type_count->n_other_obj++; |
| 1185 | break; |
| 1186 | case DEF_OTHER_OBJ: |
| 1187 | acl_type_count->n_def_other_obj++; |
| 1188 | break; |
| 1189 | case CLASS_OBJ: |
| 1190 | acl_type_count->n_class_obj++; |
| 1191 | break; |
| 1192 | case DEF_CLASS_OBJ: |
| 1193 | acl_type_count->n_def_class_obj++; |
| 1194 | break; |
| 1195 | case DEF_USER: |
| 1196 | acl_type_count->n_def_user++; |
| 1197 | break; |
| 1198 | case DEF_GROUP: |
| 1199 | acl_type_count->n_def_group++; |
| 1200 | break; |
| 1201 | default: |
| 1202 | acl_type_count->n_illegal_obj++; |
| 1203 | break; |
| 1204 | } |
| 1205 | } |
| 1206 | } |
| 1207 | |
| 1208 | /* swap_acl_entries: Swaps two ACL entries. |
| 1209 | * |
| 1210 | * Inputs: aclp0, aclp1 - ACL entries to be swapped. |
| 1211 | */ |
| 1212 | |
| 1213 | static void hpux_swap_acl_entries(struct acl *aclp0, struct acl *aclp1) |
| 1214 | { |
| 1215 | struct acl temp_acl; |
| 1216 | |
| 1217 | temp_acl.a_type = aclp0->a_type; |
| 1218 | temp_acl.a_id = aclp0->a_id; |
| 1219 | temp_acl.a_perm = aclp0->a_perm; |
| 1220 | |
| 1221 | aclp0->a_type = aclp1->a_type; |
| 1222 | aclp0->a_id = aclp1->a_id; |
| 1223 | aclp0->a_perm = aclp1->a_perm; |
| 1224 | |
| 1225 | aclp1->a_type = temp_acl.a_type; |
| 1226 | aclp1->a_id = temp_acl.a_id; |
| 1227 | aclp1->a_perm = temp_acl.a_perm; |
| 1228 | } |
| 1229 | |
| 1230 | /* prohibited_duplicate_type |
| 1231 | * Identifies if given ACL type can have duplicate entries or |
| 1232 | * not. |
| 1233 | * |
| 1234 | * Inputs: acl_type - ACL Type. |
| 1235 | * |
| 1236 | * Outputs: |
| 1237 | * |
| 1238 | * Return.. |
| 1239 | * |
| 1240 | * True - If the ACL type matches any of the prohibited types. |
| 1241 | * False - If the ACL type doesn't match any of the prohibited types. |
| 1242 | */ |
| 1243 | |
| 1244 | static BOOL hpux_prohibited_duplicate_type(int acl_type) |
| 1245 | { |
| 1246 | switch(acl_type) { |
| 1247 | case USER: |
| 1248 | case GROUP: |
| 1249 | case DEF_USER: |
| 1250 | case DEF_GROUP: |
| 1251 | return True; |
| 1252 | default: |
| 1253 | return False; |
| 1254 | } |
| 1255 | } |
| 1256 | |
| 1257 | /* get_needed_class_perm |
| 1258 | * Returns the permissions of a ACL structure only if the ACL |
| 1259 | * type matches one of the pre-determined types for computing |
| 1260 | * CLASS_OBJ permissions. |
| 1261 | * |
| 1262 | * Inputs: aclp - Pointer to ACL structure. |
| 1263 | */ |
| 1264 | |
| 1265 | static int hpux_get_needed_class_perm(struct acl *aclp) |
| 1266 | { |
| 1267 | switch(aclp->a_type) { |
| 1268 | case USER: |
| 1269 | case GROUP_OBJ: |
| 1270 | case GROUP: |
| 1271 | case DEF_USER_OBJ: |
| 1272 | case DEF_USER: |
| 1273 | case DEF_GROUP_OBJ: |
| 1274 | case DEF_GROUP: |
| 1275 | case DEF_CLASS_OBJ: |
| 1276 | case DEF_OTHER_OBJ: |
| 1277 | return aclp->a_perm; |
| 1278 | default: |
| 1279 | return 0; |
| 1280 | } |
| 1281 | } |
| 1282 | |
| 1283 | /* acl_sort for HPUX. |
| 1284 | * Sorts the array of ACL structures as per the description in |
| 1285 | * aclsort man page. Refer to aclsort man page for more details |
| 1286 | * |
| 1287 | * Inputs: |
| 1288 | * |
| 1289 | * acl_count - Count of ACLs in the array of ACL structures. |
| 1290 | * calclass - If this is not zero, then we compute the CLASS_OBJ |
| 1291 | * permissions. |
| 1292 | * aclp - Array of ACL structures. |
| 1293 | * |
| 1294 | * Outputs: |
| 1295 | * |
| 1296 | * aclp - Sorted array of ACL structures. |
| 1297 | * |
| 1298 | * Outputs: |
| 1299 | * |
| 1300 | * Returns 0 for success -1 for failure. Prints a message to the Samba |
| 1301 | * debug log in case of failure. |
| 1302 | */ |
| 1303 | |
| 1304 | static int hpux_acl_sort(int acl_count, int calclass, struct acl *aclp) |
| 1305 | { |
| 1306 | #if !defined(HAVE_HPUX_ACLSORT) |
| 1307 | /* |
| 1308 | * The aclsort() system call is availabe on the latest HPUX General |
| 1309 | * Patch Bundles. So for HPUX, we developed our version of acl_sort |
| 1310 | * function. Because, we don't want to update to a new |
| 1311 | * HPUX GR bundle just for aclsort() call. |
| 1312 | */ |
| 1313 | |
| 1314 | struct hpux_acl_types acl_obj_count; |
| 1315 | int n_class_obj_perm = 0; |
| 1316 | int i, j; |
| 1317 | |
| 1318 | if(!acl_count) { |
| 1319 | DEBUG(10,("Zero acl count passed. Returning Success\n")); |
| 1320 | return 0; |
| 1321 | } |
| 1322 | |
| 1323 | if(aclp == NULL) { |
| 1324 | DEBUG(0,("Null ACL pointer in hpux_acl_sort. Returning Failure. \n")); |
| 1325 | return -1; |
| 1326 | } |
| 1327 | |
| 1328 | /* Count different types of ACLs in the ACLs array */ |
| 1329 | |
| 1330 | hpux_count_obj(acl_count, aclp, &acl_obj_count); |
| 1331 | |
| 1332 | /* There should be only one entry each of type USER_OBJ, GROUP_OBJ, |
| 1333 | * CLASS_OBJ and OTHER_OBJ |
| 1334 | */ |
| 1335 | |
| 1336 | if( (acl_obj_count.n_user_obj != 1) || |
| 1337 | (acl_obj_count.n_group_obj != 1) || |
| 1338 | (acl_obj_count.n_class_obj != 1) || |
| 1339 | (acl_obj_count.n_other_obj != 1) |
| 1340 | ) { |
| 1341 | DEBUG(0,("hpux_acl_sort: More than one entry or no entries for \ |
| 1342 | USER OBJ or GROUP_OBJ or OTHER_OBJ or CLASS_OBJ\n")); |
| 1343 | return -1; |
| 1344 | } |
| 1345 | |
| 1346 | /* If any of the default objects are present, there should be only |
| 1347 | * one of them each. |
| 1348 | */ |
| 1349 | |
| 1350 | if( (acl_obj_count.n_def_user_obj > 1) || (acl_obj_count.n_def_group_obj > 1) || |
| 1351 | (acl_obj_count.n_def_other_obj > 1) || (acl_obj_count.n_def_class_obj > 1) ) { |
| 1352 | DEBUG(0,("hpux_acl_sort: More than one entry for DEF_CLASS_OBJ \ |
| 1353 | or DEF_USER_OBJ or DEF_GROUP_OBJ or DEF_OTHER_OBJ\n")); |
| 1354 | return -1; |
| 1355 | } |
| 1356 | |
| 1357 | /* We now have proper number of OBJ and DEF_OBJ entries. Now sort the acl |
| 1358 | * structures. |
| 1359 | * |
| 1360 | * Sorting crieteria - First sort by ACL type. If there are multiple entries of |
| 1361 | * same ACL type, sort by ACL id. |
| 1362 | * |
| 1363 | * I am using the trival kind of sorting method here because, performance isn't |
| 1364 | * really effected by the ACLs feature. More over there aren't going to be more |
| 1365 | * than 17 entries on HPUX. |
| 1366 | */ |
| 1367 | |
| 1368 | for(i=0; i<acl_count;i++) { |
| 1369 | for (j=i+1; j<acl_count; j++) { |
| 1370 | if( aclp[i].a_type > aclp[j].a_type ) { |
| 1371 | /* ACL entries out of order, swap them */ |
| 1372 | |
| 1373 | hpux_swap_acl_entries((aclp+i), (aclp+j)); |
| 1374 | |
| 1375 | } else if ( aclp[i].a_type == aclp[j].a_type ) { |
| 1376 | |
| 1377 | /* ACL entries of same type, sort by id */ |
| 1378 | |
| 1379 | if(aclp[i].a_id > aclp[j].a_id) { |
| 1380 | hpux_swap_acl_entries((aclp+i), (aclp+j)); |
| 1381 | } else if (aclp[i].a_id == aclp[j].a_id) { |
| 1382 | /* We have a duplicate entry. */ |
| 1383 | if(hpux_prohibited_duplicate_type(aclp[i].a_type)) { |
| 1384 | DEBUG(0, ("hpux_acl_sort: Duplicate entry: Type(hex): %x Id: %d\n", |
| 1385 | aclp[i].a_type, aclp[i].a_id)); |
| 1386 | return -1; |
| 1387 | } |
| 1388 | } |
| 1389 | |
| 1390 | } |
| 1391 | } |
| 1392 | } |
| 1393 | |
| 1394 | /* set the class obj permissions to the computed one. */ |
| 1395 | if(calclass) { |
| 1396 | int n_class_obj_index = -1; |
| 1397 | |
| 1398 | for(i=0;i<acl_count;i++) { |
| 1399 | n_class_obj_perm |= hpux_get_needed_class_perm((aclp+i)); |
| 1400 | |
| 1401 | if(aclp[i].a_type == CLASS_OBJ) |
| 1402 | n_class_obj_index = i; |
| 1403 | } |
| 1404 | aclp[n_class_obj_index].a_perm = n_class_obj_perm; |
| 1405 | } |
| 1406 | |
| 1407 | return 0; |
| 1408 | #else |
| 1409 | return aclsort(acl_count, calclass, aclp); |
| 1410 | #endif |
| 1411 | } |
| 1412 | |
| 1413 | /* |
| 1414 | * sort the ACL and check it for validity |
| 1415 | * |
| 1416 | * if it's a minimal ACL with only 4 entries then we |
| 1417 | * need to recalculate the mask permissions to make |
| 1418 | * sure that they are the same as the GROUP_OBJ |
| 1419 | * permissions as required by the UnixWare acl() system call. |
| 1420 | * |
| 1421 | * (note: since POSIX allows minimal ACLs which only contain |
| 1422 | * 3 entries - ie there is no mask entry - we should, in theory, |
| 1423 | * check for this and add a mask entry if necessary - however |
| 1424 | * we "know" that the caller of this interface always specifies |
| 1425 | * a mask so, in practice "this never happens" (tm) - if it *does* |
| 1426 | * happen aclsort() will fail and return an error and someone will |
| 1427 | * have to fix it ...) |
| 1428 | */ |
| 1429 | |
| 1430 | static int acl_sort(SMB_ACL_T acl_d) |
| 1431 | { |
| 1432 | int fixmask = (acl_d->count <= 4); |
| 1433 | |
| 1434 | if (hpux_acl_sort(acl_d->count, fixmask, acl_d->acl) != 0) { |
| 1435 | errno = EINVAL; |
| 1436 | return -1; |
| 1437 | } |
| 1438 | return 0; |
| 1439 | } |
| 1440 | |
| 1441 | int sys_acl_valid(SMB_ACL_T acl_d) |
| 1442 | { |
| 1443 | return acl_sort(acl_d); |
| 1444 | } |
| 1445 | |
| 1446 | int sys_acl_set_file(const char *name, SMB_ACL_TYPE_T type, SMB_ACL_T acl_d) |
| 1447 | { |
| 1448 | struct stat s; |
| 1449 | struct acl *acl_p; |
| 1450 | int acl_count; |
| 1451 | struct acl *acl_buf = NULL; |
| 1452 | int ret; |
| 1453 | |
| 1454 | if(hpux_acl_call_presence() == False) { |
| 1455 | /* Looks like we don't have the acl() system call on HPUX. |
| 1456 | * May be the system doesn't have the latest version of JFS. |
| 1457 | */ |
| 1458 | errno=ENOSYS; |
| 1459 | return -1; |
| 1460 | } |
| 1461 | |
| 1462 | if (type != SMB_ACL_TYPE_ACCESS && type != SMB_ACL_TYPE_DEFAULT) { |
| 1463 | errno = EINVAL; |
| 1464 | return -1; |
| 1465 | } |
| 1466 | |
| 1467 | if (acl_sort(acl_d) != 0) { |
| 1468 | return -1; |
| 1469 | } |
| 1470 | |
| 1471 | acl_p = &acl_d->acl[0]; |
| 1472 | acl_count = acl_d->count; |
| 1473 | |
| 1474 | /* |
| 1475 | * if it's a directory there is extra work to do |
| 1476 | * since the acl() system call will replace both |
| 1477 | * the access ACLs and the default ACLs (if any) |
| 1478 | */ |
| 1479 | if (stat(name, &s) != 0) { |
| 1480 | return -1; |
| 1481 | } |
| 1482 | if (S_ISDIR(s.st_mode)) { |
| 1483 | SMB_ACL_T acc_acl; |
| 1484 | SMB_ACL_T def_acl; |
| 1485 | SMB_ACL_T tmp_acl; |
| 1486 | int i; |
| 1487 | |
| 1488 | if (type == SMB_ACL_TYPE_ACCESS) { |
| 1489 | acc_acl = acl_d; |
| 1490 | def_acl = tmp_acl = sys_acl_get_file(name, SMB_ACL_TYPE_DEFAULT); |
| 1491 | |
| 1492 | } else { |
| 1493 | def_acl = acl_d; |
| 1494 | acc_acl = tmp_acl = sys_acl_get_file(name, SMB_ACL_TYPE_ACCESS); |
| 1495 | } |
| 1496 | |
| 1497 | if (tmp_acl == NULL) { |
| 1498 | return -1; |
| 1499 | } |
| 1500 | |
| 1501 | /* |
| 1502 | * allocate a temporary buffer for the complete ACL |
| 1503 | */ |
| 1504 | acl_count = acc_acl->count + def_acl->count; |
| 1505 | acl_p = acl_buf = SMB_MALLOC_ARRAY(struct acl, acl_count); |
| 1506 | |
| 1507 | if (acl_buf == NULL) { |
| 1508 | sys_acl_free_acl(tmp_acl); |
| 1509 | errno = ENOMEM; |
| 1510 | return -1; |
| 1511 | } |
| 1512 | |
| 1513 | /* |
| 1514 | * copy the access control and default entries into the buffer |
| 1515 | */ |
| 1516 | memcpy(&acl_buf[0], &acc_acl->acl[0], |
| 1517 | acc_acl->count * sizeof(acl_buf[0])); |
| 1518 | |
| 1519 | memcpy(&acl_buf[acc_acl->count], &def_acl->acl[0], |
| 1520 | def_acl->count * sizeof(acl_buf[0])); |
| 1521 | |
| 1522 | /* |
| 1523 | * set the ACL_DEFAULT flag on the default entries |
| 1524 | */ |
| 1525 | for (i = acc_acl->count; i < acl_count; i++) { |
| 1526 | acl_buf[i].a_type |= ACL_DEFAULT; |
| 1527 | } |
| 1528 | |
| 1529 | sys_acl_free_acl(tmp_acl); |
| 1530 | |
| 1531 | } else if (type != SMB_ACL_TYPE_ACCESS) { |
| 1532 | errno = EINVAL; |
| 1533 | return -1; |
| 1534 | } |
| 1535 | |
| 1536 | ret = acl(name, ACL_SET, acl_count, acl_p); |
| 1537 | |
| 1538 | if (acl_buf) { |
| 1539 | free(acl_buf); |
| 1540 | } |
| 1541 | |
| 1542 | return ret; |
| 1543 | } |
| 1544 | |
| 1545 | #if 0 |
| 1546 | int sys_acl_set_fd(int fd, SMB_ACL_T acl_d) |
| 1547 | { |
| 1548 | /* |
| 1549 | * HPUX doesn't have the facl call. Fake it using the path.... JRA. |
| 1550 | */ |
| 1551 | |
| 1552 | files_struct *fsp = file_find_fd(fd); |
| 1553 | |
| 1554 | if (fsp == NULL) { |
| 1555 | errno = EBADF; |
| 1556 | return NULL; |
| 1557 | } |
| 1558 | |
| 1559 | if (acl_sort(acl_d) != 0) { |
| 1560 | return -1; |
| 1561 | } |
| 1562 | |
| 1563 | /* |
| 1564 | * We know we're in the same conn context. So we |
| 1565 | * can use the relative path. |
| 1566 | */ |
| 1567 | |
| 1568 | return sys_acl_set_file(fsp->fsp_name, SMB_ACL_TYPE_ACCESS, acl_d); |
| 1569 | } |
| 1570 | #endif |
| 1571 | |
| 1572 | int sys_acl_delete_def_file(const char *path) |
| 1573 | { |
| 1574 | SMB_ACL_T acl_d; |
| 1575 | int ret; |
| 1576 | |
| 1577 | /* |
| 1578 | * fetching the access ACL and rewriting it has |
| 1579 | * the effect of deleting the default ACL |
| 1580 | */ |
| 1581 | if ((acl_d = sys_acl_get_file(path, SMB_ACL_TYPE_ACCESS)) == NULL) { |
| 1582 | return -1; |
| 1583 | } |
| 1584 | |
| 1585 | ret = acl(path, ACL_SET, acl_d->count, acl_d->acl); |
| 1586 | |
| 1587 | sys_acl_free_acl(acl_d); |
| 1588 | |
| 1589 | return ret; |
| 1590 | } |
| 1591 | |
| 1592 | int sys_acl_free_acl(SMB_ACL_T acl_d) |
| 1593 | { |
| 1594 | free(acl_d); |
| 1595 | return 0; |
| 1596 | } |
| 1597 | |
| 1598 | int sys_acl_free_qualifier(void *qual, SMB_ACL_TAG_T tagtype) |
| 1599 | { |
| 1600 | return 0; |
| 1601 | } |
| 1602 | |
| 1603 | #elif defined(HAVE_IRIX_ACLS) |
| 1604 | |
| 1605 | int sys_acl_get_entry(SMB_ACL_T acl_d, int entry_id, SMB_ACL_ENTRY_T *entry_p) |
| 1606 | { |
| 1607 | if (entry_id != SMB_ACL_FIRST_ENTRY && entry_id != SMB_ACL_NEXT_ENTRY) { |
| 1608 | errno = EINVAL; |
| 1609 | return -1; |
| 1610 | } |
| 1611 | |
| 1612 | if (entry_p == NULL) { |
| 1613 | errno = EINVAL; |
| 1614 | return -1; |
| 1615 | } |
| 1616 | |
| 1617 | if (entry_id == SMB_ACL_FIRST_ENTRY) { |
| 1618 | acl_d->next = 0; |
| 1619 | } |
| 1620 | |
| 1621 | if (acl_d->next < 0) { |
| 1622 | errno = EINVAL; |
| 1623 | return -1; |
| 1624 | } |
| 1625 | |
| 1626 | if (acl_d->next >= acl_d->aclp->acl_cnt) { |
| 1627 | return 0; |
| 1628 | } |
| 1629 | |
| 1630 | *entry_p = &acl_d->aclp->acl_entry[acl_d->next++]; |
| 1631 | |
| 1632 | return 1; |
| 1633 | } |
| 1634 | |
| 1635 | int sys_acl_get_tag_type(SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *type_p) |
| 1636 | { |
| 1637 | *type_p = entry_d->ae_tag; |
| 1638 | |
| 1639 | return 0; |
| 1640 | } |
| 1641 | |
| 1642 | void *sys_acl_get_qualifier(SMB_ACL_ENTRY_T entry_d) |
| 1643 | { |
| 1644 | if (entry_d->ae_tag != SMB_ACL_USER |
| 1645 | && entry_d->ae_tag != SMB_ACL_GROUP) { |
| 1646 | errno = EINVAL; |
| 1647 | return NULL; |
| 1648 | } |
| 1649 | |
| 1650 | return &entry_d->ae_id; |
| 1651 | } |
| 1652 | |
| 1653 | SMB_ACL_T sys_acl_get_file(const char *path_p, SMB_ACL_TYPE_T type) |
| 1654 | { |
| 1655 | SMB_ACL_T a; |
| 1656 | |
| 1657 | if ((a = SMB_MALLOC_P(struct SMB_ACL_T)) == NULL) { |
| 1658 | errno = ENOMEM; |
| 1659 | return NULL; |
| 1660 | } |
| 1661 | if ((a->aclp = acl_get_file(path_p, type)) == NULL) { |
| 1662 | SAFE_FREE(a); |
| 1663 | return NULL; |
| 1664 | } |
| 1665 | a->next = -1; |
| 1666 | a->freeaclp = True; |
| 1667 | return a; |
| 1668 | } |
| 1669 | |
| 1670 | #if 0 |
| 1671 | SMB_ACL_T sys_acl_get_fd(int fd) |
| 1672 | { |
| 1673 | SMB_ACL_T a; |
| 1674 | |
| 1675 | if ((a = SMB_MALLOC_P(struct SMB_ACL_T)) == NULL) { |
| 1676 | errno = ENOMEM; |
| 1677 | return NULL; |
| 1678 | } |
| 1679 | if ((a->aclp = acl_get_fd(fd)) == NULL) { |
| 1680 | SAFE_FREE(a); |
| 1681 | return NULL; |
| 1682 | } |
| 1683 | a->next = -1; |
| 1684 | a->freeaclp = True; |
| 1685 | return a; |
| 1686 | } |
| 1687 | #endif |
| 1688 | |
| 1689 | int sys_acl_get_access_bits(SMB_ACL_ENTRY_T entry_d, uint32 *bits) |
| 1690 | { |
| 1691 | *bits = entry_d->ae_perm; |
| 1692 | |
| 1693 | return 0; |
| 1694 | } |
| 1695 | |
| 1696 | SMB_ACL_T sys_acl_init(int count) |
| 1697 | { |
| 1698 | SMB_ACL_T a; |
| 1699 | |
| 1700 | if (count < 0) { |
| 1701 | errno = EINVAL; |
| 1702 | return NULL; |
| 1703 | } |
| 1704 | |
| 1705 | if ((a = SMB_MALLOC(sizeof(struct SMB_ACL_T) + sizeof(struct acl))) == NULL) { |
| 1706 | errno = ENOMEM; |
| 1707 | return NULL; |
| 1708 | } |
| 1709 | |
| 1710 | a->next = -1; |
| 1711 | a->freeaclp = False; |
| 1712 | a->aclp = (struct acl *)(&a->aclp + sizeof(struct acl *)); |
| 1713 | a->aclp->acl_cnt = 0; |
| 1714 | |
| 1715 | return a; |
| 1716 | } |
| 1717 | |
| 1718 | |
| 1719 | int sys_acl_create_entry(SMB_ACL_T *acl_p, SMB_ACL_ENTRY_T *entry_p) |
| 1720 | { |
| 1721 | SMB_ACL_T acl_d; |
| 1722 | SMB_ACL_ENTRY_T entry_d; |
| 1723 | |
| 1724 | if (acl_p == NULL || entry_p == NULL || (acl_d = *acl_p) == NULL) { |
| 1725 | errno = EINVAL; |
| 1726 | return -1; |
| 1727 | } |
| 1728 | |
| 1729 | if (acl_d->aclp->acl_cnt >= ACL_MAX_ENTRIES) { |
| 1730 | errno = ENOSPC; |
| 1731 | return -1; |
| 1732 | } |
| 1733 | |
| 1734 | entry_d = &acl_d->aclp->acl_entry[acl_d->aclp->acl_cnt++]; |
| 1735 | entry_d->ae_tag = 0; |
| 1736 | entry_d->ae_id = 0; |
| 1737 | entry_d->ae_perm = 0; |
| 1738 | *entry_p = entry_d; |
| 1739 | |
| 1740 | return 0; |
| 1741 | } |
| 1742 | |
| 1743 | int sys_acl_set_tag_type(SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T tag_type) |
| 1744 | { |
| 1745 | switch (tag_type) { |
| 1746 | case SMB_ACL_USER: |
| 1747 | case SMB_ACL_USER_OBJ: |
| 1748 | case SMB_ACL_GROUP: |
| 1749 | case SMB_ACL_GROUP_OBJ: |
| 1750 | case SMB_ACL_OTHER: |
| 1751 | case SMB_ACL_MASK: |
| 1752 | entry_d->ae_tag = tag_type; |
| 1753 | break; |
| 1754 | default: |
| 1755 | errno = EINVAL; |
| 1756 | return -1; |
| 1757 | } |
| 1758 | |
| 1759 | return 0; |
| 1760 | } |
| 1761 | |
| 1762 | int sys_acl_set_qualifier(SMB_ACL_ENTRY_T entry_d, void *qual_p) |
| 1763 | { |
| 1764 | if (entry_d->ae_tag != SMB_ACL_GROUP |
| 1765 | && entry_d->ae_tag != SMB_ACL_USER) { |
| 1766 | errno = EINVAL; |
| 1767 | return -1; |
| 1768 | } |
| 1769 | |
| 1770 | entry_d->ae_id = *((id_t *)qual_p); |
| 1771 | |
| 1772 | return 0; |
| 1773 | } |
| 1774 | |
| 1775 | int sys_acl_set_access_bits(SMB_ACL_ENTRY_T entry_d, uint32 bits) |
| 1776 | { |
| 1777 | entry_d->ae_perm = bits; |
| 1778 | |
| 1779 | return 0; |
| 1780 | } |
| 1781 | |
| 1782 | int sys_acl_valid(SMB_ACL_T acl_d) |
| 1783 | { |
| 1784 | return acl_valid(acl_d->aclp); |
| 1785 | } |
| 1786 | |
| 1787 | int sys_acl_set_file(const char *name, SMB_ACL_TYPE_T type, SMB_ACL_T acl_d) |
| 1788 | { |
| 1789 | return acl_set_file(name, type, acl_d->aclp); |
| 1790 | } |
| 1791 | |
| 1792 | int sys_acl_set_fd(int fd, SMB_ACL_T acl_d) |
| 1793 | { |
| 1794 | return acl_set_fd(fd, acl_d->aclp); |
| 1795 | } |
| 1796 | |
| 1797 | int sys_acl_delete_def_file(const char *name) |
| 1798 | { |
| 1799 | return acl_delete_def_file(name); |
| 1800 | } |
| 1801 | |
| 1802 | int sys_acl_free_acl(SMB_ACL_T acl_d) |
| 1803 | { |
| 1804 | if (acl_d->freeaclp) { |
| 1805 | acl_free(acl_d->aclp); |
| 1806 | } |
| 1807 | acl_free(acl_d); |
| 1808 | return 0; |
| 1809 | } |
| 1810 | |
| 1811 | int sys_acl_free_qualifier(void *qual, SMB_ACL_TAG_T tagtype) |
| 1812 | { |
| 1813 | return 0; |
| 1814 | } |
| 1815 | |
| 1816 | #elif defined(HAVE_AIX_ACLS) |
| 1817 | |
| 1818 | /* Donated by Medha Date, mdate@austin.ibm.com, for IBM */ |
| 1819 | |
| 1820 | int sys_acl_get_entry( SMB_ACL_T theacl, int entry_id, SMB_ACL_ENTRY_T *entry_p) |
| 1821 | { |
| 1822 | struct acl_entry_link *link; |
| 1823 | struct new_acl_entry *entry; |
| 1824 | int keep_going; |
| 1825 | |
| 1826 | DEBUG(10,("This is the count: %d\n",theacl->count)); |
| 1827 | |
| 1828 | /* Check if count was previously set to -1. * |
| 1829 | * If it was, that means we reached the end * |
| 1830 | * of the acl last time. */ |
| 1831 | if(theacl->count == -1) |
| 1832 | return(0); |
| 1833 | |
| 1834 | link = theacl; |
| 1835 | /* To get to the next acl, traverse linked list until index * |
| 1836 | * of acl matches the count we are keeping. This count is * |
| 1837 | * incremented each time we return an acl entry. */ |
| 1838 | |
| 1839 | for(keep_going = 0; keep_going < theacl->count; keep_going++) |
| 1840 | link = link->nextp; |
| 1841 | |
| 1842 | entry = *entry_p = link->entryp; |
| 1843 | |
| 1844 | DEBUG(10,("*entry_p is %d\n",entry_p)); |
| 1845 | DEBUG(10,("*entry_p->ace_access is %d\n",entry->ace_access)); |
| 1846 | |
| 1847 | /* Increment count */ |
| 1848 | theacl->count++; |
| 1849 | if(link->nextp == NULL) |
| 1850 | theacl->count = -1; |
| 1851 | |
| 1852 | return(1); |
| 1853 | } |
| 1854 | |
| 1855 | int sys_acl_get_tag_type( SMB_ACL_ENTRY_T entry_d, SMB_ACL_TAG_T *tag_type_p) |
| 1856 | { |
| 1857 | /* Initialize tag type */ |
| 1858 | |
| 1859 | *tag_type_p = -1; |
| 1860 | DEBUG(10,("the tagtype is %d\n",entry_d->ace_id->id_type)); |
| 1861 | |
| 1862 | /* Depending on what type of entry we have, * |
| 1863 | * return tag type. */ |
| 1864 | switch(entry_d->ace_id->id_type) { |
| 1865 | case ACEID_USER: |
| 1866 | *tag_type_p = SMB_ACL_USER; |
| 1867 | break; |
| 1868 | case ACEID_GROUP: |
| 1869 | *tag_type_p = SMB_ACL_GROUP; |
| 1870 | break; |
| 1871 | |
| 1872 | case SMB_ACL_USER_OBJ: |
| 1873 | case SMB_ACL_GROUP_OBJ: |
| 1874 | case SMB_ACL_OTHER: |
| 1875 | *tag_type_p = entry_d->ace_id->id_type; |
| 1876 | break; |
| 1877 | |
| 1878 | default: |
| 1879 | return(-1); |
| 1880 | } |
| 1881 | |
| 1882 | return(0); |
| 1883 | } |
| 1884 | |
| 1885 | int sys_acl_get_access_bits(SMB_ACL_ENTRY_T entry_d, uint32 *bits) |
| 1886 | { |
| 1887 | SMB_ACL_PERMSET_T permset; |
| 1888 | DEBUG(10,("Starting AIX sys_acl_get_access_bits\n")); |
| 1889 | permset = &entry_d->ace_access; |
| 1890 | DEBUG(10,("*permset is %d\n",*permset)); |
| 1891 | *bits = (*permset & S_IRUSR ? 4 : 0) |
| 1892 | | (*permset & S_IWUSR ? 2 : 0) |
| 1893 | | (*permset & S_IXUSR ? 1 : 0); |
| 1894 | DEBUG(10,("Ending AIX sys_acl_get_access_bits\n")); |
| 1895 | return(0); |
| 1896 | } |
| 1897 | |
| 1898 | void *sys_acl_get_qualifier( SMB_ACL_ENTRY_T entry_d) |
| 1899 | { |
| 1900 | return(entry_d->ace_id->id_data); |
| 1901 | } |
| 1902 | |
| 1903 | SMB_ACL_T sys_acl_get_file( const char *path_p, SMB_ACL_TYPE_T type) |
| 1904 | { |
| 1905 | struct acl *file_acl = (struct acl *)NULL; |
| 1906 | struct acl_entry *acl_entry; |
| 1907 | struct new_acl_entry *new_acl_entry; |
| 1908 | struct ace_id *idp; |
| 1909 | struct acl_entry_link *acl_entry_link; |
| 1910 | struct acl_entry_link *acl_entry_link_head; |
| 1911 | int i; |
| 1912 | int rc = 0; |
| 1913 | uid_t user_id; |
| 1914 | |
| 1915 | /* AIX has no DEFAULT */ |
| 1916 | if ( type == SMB_ACL_TYPE_DEFAULT ) { |
| 1917 | errno = ENOTSUP; |
| 1918 | return NULL; |
| 1919 | } |
| 1920 | |
| 1921 | /* Get the acl using statacl */ |
| 1922 | |
| 1923 | DEBUG(10,("Entering sys_acl_get_file\n")); |
| 1924 | DEBUG(10,("path_p is %s\n",path_p)); |
| 1925 | |
| 1926 | file_acl = (struct acl *)SMB_MALLOC(BUFSIZ); |
| 1927 | |
| 1928 | if(file_acl == NULL) { |
| 1929 | errno=ENOMEM; |
| 1930 | DEBUG(0,("Error in AIX sys_acl_get_file: %d\n",errno)); |
| 1931 | return(NULL); |
| 1932 | } |
| 1933 | |
| 1934 | memset(file_acl,0,BUFSIZ); |
| 1935 | |
| 1936 | rc = statacl((char *)path_p,0,file_acl,BUFSIZ); |
| 1937 | if(rc == -1) { |
| 1938 | DEBUG(0,("statacl returned %d with errno %d\n",rc,errno)); |
| 1939 | SAFE_FREE(file_acl); |
| 1940 | return(NULL); |
| 1941 | } |
| 1942 | |
| 1943 | DEBUG(10,("Got facl and returned it\n")); |
| 1944 | |
| 1945 | /* Point to the first acl entry in the acl */ |
| 1946 | acl_entry = file_acl->acl_ext; |
| 1947 | |
| 1948 | /* Begin setting up the head of the linked list * |
| 1949 | * that will be used for the storing the acl * |
| 1950 | * in a way that is useful for the posix_acls.c * |
| 1951 | * code. */ |
| 1952 | |
| 1953 | acl_entry_link_head = acl_entry_link = sys_acl_init(0); |
| 1954 | if(acl_entry_link_head == NULL) |
| 1955 | return(NULL); |
| 1956 | |
| 1957 | acl_entry_link->entryp = SMB_MALLOC_P(struct new_acl_entry); |
| 1958 | if(acl_entry_link->entryp == NULL) { |
| 1959 | SAFE_FREE(file_acl); |
| 1960 | errno = ENOMEM; |
| 1961 | DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno)); |
| 1962 | return(NULL); |
| 1963 | } |
| 1964 | |
| 1965 | DEBUG(10,("acl_entry is %d\n",acl_entry)); |
| 1966 | DEBUG(10,("acl_last(file_acl) id %d\n",acl_last(file_acl))); |
| 1967 | |
| 1968 | /* Check if the extended acl bit is on. * |
| 1969 | * If it isn't, do not show the * |
| 1970 | * contents of the acl since AIX intends * |
| 1971 | * the extended info to remain unused */ |
| 1972 | |
| 1973 | if(file_acl->acl_mode & S_IXACL){ |
| 1974 | /* while we are not pointing to the very end */ |
| 1975 | while(acl_entry < acl_last(file_acl)) { |
| 1976 | /* before we malloc anything, make sure this is */ |
| 1977 | /* a valid acl entry and one that we want to map */ |
| 1978 | idp = id_nxt(acl_entry->ace_id); |
| 1979 | if((acl_entry->ace_type == ACC_SPECIFY || |
| 1980 | (acl_entry->ace_type == ACC_PERMIT)) && (idp != id_last(acl_entry))) { |
| 1981 | acl_entry = acl_nxt(acl_entry); |
| 1982 | continue; |
| 1983 | } |
| 1984 | |
| 1985 | idp = acl_entry->ace_id; |
| 1986 | |
| 1987 | /* Check if this is the first entry in the linked list. * |
| 1988 | * The first entry needs to keep prevp pointing to NULL * |
| 1989 | * and already has entryp allocated. */ |
| 1990 | |
| 1991 | if(acl_entry_link_head->count != 0) { |
| 1992 | acl_entry_link->nextp = SMB_MALLOC_P(struct acl_entry_link); |
| 1993 | |
| 1994 | if(acl_entry_link->nextp == NULL) { |
| 1995 | SAFE_FREE(file_acl); |
| 1996 | errno = ENOMEM; |
| 1997 | DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno)); |
| 1998 | return(NULL); |
| 1999 | } |
| 2000 | |
| 2001 | acl_entry_link->nextp->prevp = acl_entry_link; |
| 2002 | acl_entry_link = acl_entry_link->nextp; |
| 2003 | acl_entry_link->entryp = SMB_MALLOC_P(struct new_acl_entry); |
| 2004 | if(acl_entry_link->entryp == NULL) { |
| 2005 | SAFE_FREE(file_acl); |
| 2006 | errno = ENOMEM; |
| 2007 | DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno)); |
| 2008 | return(NULL); |
| 2009 | } |
| 2010 | acl_entry_link->nextp = NULL; |
| 2011 | } |
| 2012 | |
| 2013 | acl_entry_link->entryp->ace_len = acl_entry->ace_len; |
| 2014 | |
| 2015 | /* Don't really need this since all types are going * |
| 2016 | * to be specified but, it's better than leaving it 0 */ |
| 2017 | |
| 2018 | acl_entry_link->entryp->ace_type = acl_entry->ace_type; |
| 2019 | |
| 2020 | acl_entry_link->entryp->ace_access = acl_entry->ace_access; |
| 2021 | |
| 2022 | memcpy(acl_entry_link->entryp->ace_id,idp,sizeof(struct ace_id)); |
| 2023 | |
| 2024 | /* The access in the acl entries must be left shifted by * |
| 2025 | * three bites, because they will ultimately be compared * |
| 2026 | * to S_IRUSR, S_IWUSR, and S_IXUSR. */ |
| 2027 | |
| 2028 | switch(acl_entry->ace_type){ |
| 2029 | case ACC_PERMIT: |
| 2030 | case ACC_SPECIFY: |
| 2031 | acl_entry_link->entryp->ace_access = acl_entry->ace_access; |
| 2032 | acl_entry_link->entryp->ace_access <<= 6; |
| 2033 | acl_entry_link_head->count++; |
| 2034 | break; |
| 2035 | case ACC_DENY: |
| 2036 | /* Since there is no way to return a DENY acl entry * |
| 2037 | * change to PERMIT and then shift. */ |
| 2038 | DEBUG(10,("acl_entry->ace_access is %d\n",acl_entry->ace_access)); |
| 2039 | acl_entry_link->entryp->ace_access = ~acl_entry->ace_access & 7; |
| 2040 | DEBUG(10,("acl_entry_link->entryp->ace_access is %d\n",acl_entry_link->entryp->ace_access)); |
| 2041 | acl_entry_link->entryp->ace_access <<= 6; |
| 2042 | acl_entry_link_head->count++; |
| 2043 | break; |
| 2044 | default: |
| 2045 | return(0); |
| 2046 | } |
| 2047 | |
| 2048 | DEBUG(10,("acl_entry = %d\n",acl_entry)); |
| 2049 | DEBUG(10,("The ace_type is %d\n",acl_entry->ace_type)); |
| 2050 | |
| 2051 | acl_entry = acl_nxt(acl_entry); |
| 2052 | } |
| 2053 | } /* end of if enabled */ |
| 2054 | |
| 2055 | /* Since owner, group, other acl entries are not * |
| 2056 | * part of the acl entries in an acl, they must * |
| 2057 | * be dummied up to become part of the list. */ |
| 2058 | |
| 2059 | for( i = 1; i < 4; i++) { |
| 2060 | DEBUG(10,("i is %d\n",i)); |
| 2061 | if(acl_entry_link_head->count != 0) { |
| 2062 | acl_entry_link->nextp = SMB_MALLOC_P(struct acl_entry_link); |
| 2063 | if(acl_entry_link->nextp == NULL) { |
| 2064 | SAFE_FREE(file_acl); |
| 2065 | errno = ENOMEM; |
| 2066 | DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno)); |
| 2067 | return(NULL); |
| 2068 | } |
| 2069 | |
| 2070 | acl_entry_link->nextp->prevp = acl_entry_link; |
| 2071 | acl_entry_link = acl_entry_link->nextp; |
| 2072 | acl_entry_link->entryp = SMB_MALLOC_P(struct new_acl_entry); |
| 2073 | if(acl_entry_link->entryp == NULL) { |
| 2074 | SAFE_FREE(file_acl); |
| 2075 | errno = ENOMEM; |
| 2076 | DEBUG(0,("Error in AIX sys_acl_get_file is %d\n",errno)); |
| 2077 | return(NULL); |
| 2078 | } |
| 2079 | } |
| 2080 | |
| 2081 | acl_entry_link->nextp = NULL; |
| 2082 | |
| 2083 | new_acl_entry = acl_entry_link->entryp; |
| 2084 | idp = new_acl_entry->ace_id; |
| 2085 | |
| 2086 | new_acl_entry->ace_len = sizeof(struct acl_entry); |
| 2087 | new_acl_entry->ace_type = ACC_PERMIT; |
| 2088 | idp->id_len = sizeof(struct ace_id); |
| 2089 | DEBUG(10,("idp->id_len = %d\n",idp->id_len)); |
| 2090 | memset(idp->id_data,0,sizeof(uid_t)); |
| 2091 | |
| 2092 | switch(i) { |
| 2093 | case 2: |
| 2094 | new_acl_entry->ace_access = file_acl->g_access << 6; |
| 2095 | idp->id_type = SMB_ACL_GROUP_OBJ; |
| 2096 | break; |
| 2097 | |
| 2098 | case 3: |
| 2099 | new_acl_entry->ace_access = file_acl->o_access << 6; |
| 2100 | idp->id_type = SMB_ACL_OTHER; |
| 2101 | break; |
| 2102 | |
| 2103 | case 1: |
| 2104 | new_acl_entry->ace_access = file_acl->u_access << 6; |
| 2105 | idp->id_type = SMB_ACL_USER_OBJ; |
| 2106 | break; |
| 2107 | |
| 2108 | default: |
| 2109 | return(NULL); |
| 2110 | |
| 2111 | } |
| 2112 | |
| 2113 | acl_entry_link_head->count++; |
| 2114 | DEBUG(10,("new_acl_entry->ace_access = %d\n",new_acl_entry->ace_access)); |
| 2115 | } |
| 2116 | |
| 2117 | acl_entry_link_head->count = 0; |
| 2118 | SAFE_FREE(file_acl); |
| 2119 | |
| 2120 | return(acl_entry_link_head); |
| 2121 | } |
| 2122 | |
| 2123 | #if 0 |
| 2124 | SMB_ACL_T sys_acl_get_fd(int fd) |
| 2125 | { |
| 2126 | struct acl *file_acl = (struct acl *)NULL; |
| 2127 | struct acl_entry *acl_entry; |
| 2128 | struct new_acl_entry *new_acl_entry; |
| 2129 | struct ace_id *idp; |
| 2130 | struct acl_entry_link *acl_entry_link; |
| 2131 | struct acl_entry_link *acl_entry_link_head; |
| 2132 | int i; |
| 2133 | int rc = 0; |
| 2134 | uid_t user_id; |
| 2135 | |
| 2136 | /* Get the acl using fstatacl */ |
| 2137 | |
| 2138 | DEBUG(10,("Entering sys_acl_get_fd\n")); |
| 2139 | DEBUG(10,("fd is %d\n",fd)); |
| 2140 | file_acl = (struct acl *)SMB_MALLOC(BUFSIZ); |
| 2141 | |
| 2142 | if(file_acl == NULL) { |
| 2143 | errno=ENOMEM; |
| 2144 | DEBUG(0,("Error in sys_acl_get_fd is %d\n",errno)); |
| 2145 | return(NULL); |
| 2146 | } |
| 2147 | |
| 2148 | memset(file_acl,0,BUFSIZ); |
| 2149 | |
| 2150 | rc = fstatacl(fd,0,file_acl,BUFSIZ); |
| 2151 | if(rc == -1) { |
| 2152 | DEBUG(0,("The fstatacl call returned %d with errno %d\n",rc,errno)); |
| 2153 | SAFE_FREE(file_acl); |
| 2154 | return(NULL); |
| 2155 | } |
| 2156 | |
| 2157 | DEBUG(10,("Got facl and returned it\n")); |
| 2158 | |
| 2159 | /* Point to the first acl entry in the acl */ |
| 2160 | |
| 2161 | acl_entry = file_acl->acl_ext; |
| 2162 | /* Begin setting up the head of the linked list * |
| 2163 | * that will be used for the storing the acl * |
| 2164 | * in a way that is useful for the posix_acls.c * |
| 2165 | * code. */ |
| 2166 | |
| 2167 | acl_entry_link_head = acl_entry_link = sys_acl_init(0); |
| 2168 | if(acl_entry_link_head == NULL){ |
| 2169 | SAFE_FREE(file_acl); |
| 2170 | return(NULL); |
| 2171 | } |
| 2172 | |
| 2173 | acl_entry_link->entryp = SMB_MALLOC_P(struct new_acl_entry); |
| 2174 | |
| 2175 | if(acl_entry_link->entryp == NULL) { |
| 2176 | errno = ENOMEM; |
| 2177 | DEBUG(0,("Error in sys_acl_get_fd is %d\n",errno)); |
| 2178 | SAFE_FREE(file_acl); |
| 2179 | return(NULL); |
| 2180 | } |
| 2181 | |
| 2182 | DEBUG(10,("acl_entry is %d\n",acl_entry)); |
| 2183 | DEBUG(10,("acl_last(file_acl) id %d\n",acl_last(file_acl))); |
| 2184 | |
| 2185 | /* Check if the extended acl bit is on. * |
| 2186 | * If it isn't, do not show the * |
| 2187 | * contents of the acl since AIX intends * |
| 2188 | * the extended info to remain unused */ |
| 2189 | |
| 2190 | if(file_acl->acl_mode & S_IXACL){ |
| 2191 | /* while we are not pointing to the very end */ |
| 2192 | while(acl_entry < acl_last(file_acl)) { |
| 2193 | /* before we malloc anything, make sure this is */ |
| 2194 | /* a valid acl entry and one that we want to map */ |
| 2195 | |
| 2196 | idp = id_nxt(acl_entry->ace_id); |
| 2197 | if((acl_entry->ace_type == ACC_SPECIFY || |
| 2198 | (acl_entry->ace_type == ACC_PERMIT)) && (idp != id_last(acl_entry))) { |
| 2199 | acl_entry = acl_nxt(acl_entry); |
| 2200 | continue; |
| 2201 | } |
| 2202 | |
| 2203 | idp = acl_entry->ace_id; |
| 2204 | |
| 2205 | /* Check if this is the first entry in the linked list. * |
| 2206 | * The first entry needs to keep prevp pointing to NULL * |
| 2207 | * and already has entryp allocated. */ |
| 2208 | |
| 2209 | if(acl_entry_link_head->count != 0) { |
| 2210 | acl_entry_link->nextp = SMB_MALLOC_P(struct acl_entry_link); |
| 2211 | if(acl_entry_link->nextp == NULL) { |
| 2212 | errno = ENOMEM; |
| 2213 | DEBUG(0,("Error in sys_acl_get_fd is %d\n",errno)); |
| 2214 | SAFE_FREE(file_acl); |
| 2215 | return(NULL); |
| 2216 | } |
| 2217 | acl_entry_link->nextp->prevp = acl_entry_link; |
| 2218 | acl_entry_link = acl_entry_link->nextp; |
| 2219 | acl_entry_link->entryp = SMB_MALLOC_P(struct new_acl_entry); |
| 2220 | if(acl_entry_link->entryp == NULL) { |
| 2221 | errno = ENOMEM; |
| 2222 | DEBUG(0,("Error in sys_acl_get_fd is %d\n",errno)); |
| 2223 | SAFE_FREE(file_acl); |
| 2224 | return(NULL); |
| 2225 | } |
| 2226 | |
| 2227 | acl_entry_link->nextp = NULL; |
| 2228 | } |
| 2229 | |
| 2230 | acl_entry_link->entryp->ace_len = acl_entry->ace_len; |
| 2231 | |
| 2232 | /* Don't really need this since all types are going * |
| 2233 | * to be specified but, it's better than leaving it 0 */ |
| 2234 | |
| 2235 | acl_entry_link->entryp->ace_type = acl_entry->ace_type; |
| 2236 | acl_entry_link->entryp->ace_access = acl_entry->ace_access; |
| 2237 | |
| 2238 | memcpy(acl_entry_link->entryp->ace_id, idp, sizeof(struct ace_id)); |
| 2239 | |
| 2240 | /* The access in the acl entries must be left shifted by * |
| 2241 | * three bites, because they will ultimately be compared * |
| 2242 | * to S_IRUSR, S_IWUSR, and S_IXUSR. */ |
| 2243 | |
| 2244 | switch(acl_entry->ace_type){ |
| 2245 | case ACC_PERMIT: |
| 2246 | case ACC_SPECIFY: |
| 2247 | acl_entry_link->entryp->ace_access = acl_entry->ace_access; |
| 2248 | acl_entry_link->entryp->ace_access <<= 6; |
| 2249 | acl_entry_link_head->count++; |
| 2250 | break; |
| 2251 | case ACC_DENY: |
| 2252 | /* Since there is no way to return a DENY acl entry * |
| 2253 | * change to PERMIT and then shift. */ |
| 2254 | DEBUG(10,("acl_entry->ace_access is %d\n",acl_entry->ace_access)); |
| 2255 | acl_entry_link->entryp->ace_access = ~acl_entry->ace_access & 7; |
| 2256 | DEBUG(10,("acl_entry_link->entryp->ace_access is %d\n",acl_entry_link->entryp->ace_access)); |
| 2257 | acl_entry_link->entryp->ace_access <<= 6; |
| 2258 | acl_entry_link_head->count++; |
| 2259 | break; |
| 2260 | default: |
| 2261 | return(0); |
| 2262 | } |
| 2263 | |
| 2264 | DEBUG(10,("acl_entry = %d\n",acl_entry)); |
| 2265 | DEBUG(10,("The ace_type is %d\n",acl_entry->ace_type)); |
| 2266 | |
| 2267 | acl_entry = acl_nxt(acl_entry); |
| 2268 | } |
| 2269 | } /* end of if enabled */ |
| 2270 | |
| 2271 | /* Since owner, group, other acl entries are not * |
| 2272 | * part of the acl entries in an acl, they must * |
| 2273 | * be dummied up to become part of the list. */ |
| 2274 | |
| 2275 | for( i = 1; i < 4; i++) { |
| 2276 | DEBUG(10,("i is %d\n",i)); |
| 2277 | if(acl_entry_link_head->count != 0){ |
| 2278 | acl_entry_link->nextp = SMB_MALLOC_P(struct acl_entry_link); |
| 2279 | if(acl_entry_link->nextp == NULL) { |
| 2280 | errno = ENOMEM; |
| 2281 | DEBUG(0,("Error in sys_acl_get_fd is %d\n",errno)); |
| 2282 | SAFE_FREE(file_acl); |
| 2283 | return(NULL); |
| 2284 | } |
| 2285 | |
| 2286 | acl_entry_link->nextp->prevp = acl_entry_link; |
| 2287 | acl_entry_link = acl_entry_link->nextp; |
| 2288 | acl_entry_link->entryp = SMB_MALLOC_P(struct new_acl_entry); |
| 2289 | |
| 2290 | if(acl_entry_link->entryp == NULL) { |
| 2291 | SAFE_FREE(file_acl); |
| 2292 | errno = ENOMEM; |
| 2293 | DEBUG(0,("Error in sys_acl_get_fd is %d\n",errno)); |
| 2294 | return(NULL); |
| 2295 | } |
| 2296 | } |
| 2297 | |
| 2298 | acl_entry_link->nextp = NULL; |
| 2299 | |
| 2300 | new_acl_entry = acl_entry_link->entryp; |
| 2301 | idp = new_acl_entry->ace_id; |
| 2302 | |
| 2303 | new_acl_entry->ace_len = sizeof(struct acl_entry); |
| 2304 | new_acl_entry->ace_type = ACC_PERMIT; |
| 2305 | idp->id_len = sizeof(struct ace_id); |
| 2306 | DEBUG(10,("idp->id_len = %d\n",idp->id_len)); |
| 2307 | memset(idp->id_data,0,sizeof(uid_t)); |
| 2308 | |
| 2309 | switch(i) { |
| 2310 | case 2: |
| 2311 | new_acl_entry->ace_access = file_acl->g_access << 6; |
| 2312 | idp->id_type = SMB_ACL_GROUP_OBJ; |
| 2313 | break; |
| 2314 | |
| 2315 | case 3: |
| 2316 | new_acl_entry->ace_access = file_acl->o_access << 6; |
| 2317 | idp->id_type = SMB_ACL_OTHER; |
| 2318 | break; |
| 2319 | |
| 2320 | case 1: |
| 2321 | new_acl_entry->ace_access = file_acl->u_access << 6; |
| 2322 | idp->id_type = SMB_ACL_USER_OBJ; |
| 2323 | break; |
| 2324 | |
| 2325 | default: |
| 2326 | return(NULL); |
| 2327 | } |
| 2328 | |
| 2329 | acl_entry_link_head->count++; |
| 2330 | DEBUG(10,("new_acl_entry->ace_access = %d\n",new_acl_entry->ace_access)); |
| 2331 | } |
| 2332 | |
| 2333 | acl_entry_link_head->count = 0; |
| 2334 | SAFE_FREE(file_acl); |
| 2335 | |
| 2336 | return(acl_entry_link_head); |
| 2337 | } |
| 2338 | #endif |
| 2339 | |
| 2340 | SMB_ACL_T sys_acl_init( int count) |
| 2341 | { |
| 2342 | struct acl_entry_link *theacl = NULL; |
| 2343 | |
| 2344 | DEBUG(10,("Entering sys_acl_init\n")); |
| 2345 | |
| 2346 | theacl = SMB_MALLOC_P(struct acl_entry_link); |
| 2347 | if(theacl == NULL) { |
| 2348 | errno = ENOMEM; |
| 2349 | DEBUG(0,("Error in sys_acl_init is %d\n",errno)); |
| 2350 | return(NULL); |
| 2351 | } |
| 2352 | |
| 2353 | theacl->count = 0; |
| 2354 | theacl->nextp = NULL; |
| 2355 | theacl->prevp = NULL; |
| 2356 | theacl->entryp = NULL; |
| 2357 | DEBUG(10,("Exiting sys_acl_init\n")); |
| 2358 | return(theacl); |
| 2359 | } |
| 2360 | |
| 2361 | int sys_acl_create_entry( SMB_ACL_T *pacl, SMB_ACL_ENTRY_T *pentry) |
| 2362 | { |
| 2363 | struct acl_entry_link *theacl; |
| 2364 | struct acl_entry_link *acl_entryp; |
| 2365 | struct acl_entry_link *temp_entry; |
| 2366 | int counting; |
| 2367 | |
| 2368 | DEBUG(10,("Entering the sys_acl_create_entry\n")); |
| 2369 | |
| 2370 | theacl = acl_entryp = *pacl; |
| 2371 | |
| 2372 | /* Get to the end of the acl before adding entry */ |
| 2373 | |
| 2374 | for(counting=0; counting < theacl->count; counting++){ |
| 2375 | DEBUG(10,("The acl_entryp is %d\n",acl_entryp)); |
| 2376 | temp_entry = acl_entryp; |
| 2377 | acl_entryp = acl_entryp->nextp; |
| 2378 | } |
| 2379 | |
| 2380 | if(theacl->count != 0){ |
| 2381 | temp_entry->nextp = acl_entryp = SMB_MALLOC_P(struct acl_entry_link); |
| 2382 | if(acl_entryp == NULL) { |
| 2383 | errno = ENOMEM; |
| 2384 | DEBUG(0,("Error in sys_acl_create_entry is %d\n",errno)); |
| 2385 | return(-1); |
| 2386 | } |
| 2387 | |
| 2388 | DEBUG(10,("The acl_entryp is %d\n",acl_entryp)); |
| 2389 | acl_entryp->prevp = temp_entry; |
| 2390 | DEBUG(10,("The acl_entryp->prevp is %d\n",acl_entryp->prevp)); |
| 2391 | } |
| 2392 | |
| 2393 | *pentry = acl_entryp->entryp = SMB_MALLOC_P(struct new_acl_entry); |
| 2394 | if(*pentry == NULL) { |
| 2395 | errno = ENOMEM; |
| 2396 | DEBUG(0,("Error in sys_acl_create_entry is %d\n",errno)); |
| 2397 | return(-1); |
| 2398 | } |
| 2399 | |
| 2400 | memset(*pentry,0,sizeof(struct new_acl_entry)); |
| 2401 | acl_entryp->entryp->ace_len = sizeof(struct acl_entry); |
| 2402 | acl_entryp->entryp->ace_type = ACC_PERMIT; |
| 2403 | acl_entryp->entryp->ace_id->id_len = sizeof(struct ace_id); |
| 2404 | acl_entryp->nextp = NULL; |
| 2405 | theacl->count++; |
| 2406 | DEBUG(10,("Exiting sys_acl_create_entry\n")); |
| 2407 | return(0); |
| 2408 | } |
| 2409 | |
| 2410 | int sys_acl_set_tag_type( SMB_ACL_ENTRY_T entry, SMB_ACL_TAG_T tagtype) |
| 2411 | { |
| 2412 | DEBUG(10,("Starting AIX sys_acl_set_tag_type\n")); |
| 2413 | entry->ace_id->id_type = tagtype; |
| 2414 | DEBUG(10,("The tag type is %d\n",entry->ace_id->id_type)); |
| 2415 | DEBUG(10,("Ending AIX sys_acl_set_tag_type\n")); |
| 2416 | } |
| 2417 | |
| 2418 | int sys_acl_set_qualifier( SMB_ACL_ENTRY_T entry, void *qual) |
| 2419 | { |
| 2420 | DEBUG(10,("Starting AIX sys_acl_set_qualifier\n")); |
| 2421 | memcpy(entry->ace_id->id_data,qual,sizeof(uid_t)); |
| 2422 | DEBUG(10,("Ending AIX sys_acl_set_qualifier\n")); |
| 2423 | return(0); |
| 2424 | } |
| 2425 | |
| 2426 | int sys_acl_set_access_bits(SMB_ACL_ENTRY_T entry, uint32 bits) |
| 2427 | { |
| 2428 | DEBUG(10,("Starting AIX sys_acl_set_permset\n")); |
| 2429 | entry->ace_access = bits; |
| 2430 | DEBUG(10,("entry->ace_access = %d\n",entry->ace_access)); |
| 2431 | DEBUG(10,("Ending AIX sys_acl_set_permset\n")); |
| 2432 | return(0); |
| 2433 | } |
| 2434 | |
| 2435 | int sys_acl_valid( SMB_ACL_T theacl ) |
| 2436 | { |
| 2437 | int user_obj = 0; |
| 2438 | int group_obj = 0; |
| 2439 | int other_obj = 0; |
| 2440 | struct acl_entry_link *acl_entry; |
| 2441 | |
| 2442 | for(acl_entry=theacl; acl_entry != NULL; acl_entry = acl_entry->nextp) { |
| 2443 | user_obj += (acl_entry->entryp->ace_id->id_type == SMB_ACL_USER_OBJ); |
| 2444 | group_obj += (acl_entry->entryp->ace_id->id_type == SMB_ACL_GROUP_OBJ); |
| 2445 | other_obj += (acl_entry->entryp->ace_id->id_type == SMB_ACL_OTHER); |
| 2446 | } |
| 2447 | |
| 2448 | DEBUG(10,("user_obj=%d, group_obj=%d, other_obj=%d\n",user_obj,group_obj,other_obj)); |
| 2449 | |
| 2450 | if(user_obj != 1 || group_obj != 1 || other_obj != 1) |
| 2451 | return(-1); |
| 2452 | |
| 2453 | return(0); |
| 2454 | } |
| 2455 | |
| 2456 | int sys_acl_set_file( const char *name, SMB_ACL_TYPE_T acltype, SMB_ACL_T theacl) |
| 2457 | { |
| 2458 | struct acl_entry_link *acl_entry_link = NULL; |
| 2459 | struct acl *file_acl = NULL; |
| 2460 | struct acl *file_acl_temp = NULL; |
| 2461 | struct acl_entry *acl_entry = NULL; |
| 2462 | struct ace_id *ace_id = NULL; |
| 2463 | uint id_type; |
| 2464 | uint ace_access; |
| 2465 | uint user_id; |
| 2466 | uint acl_length; |
| 2467 | uint rc; |
| 2468 | |
| 2469 | DEBUG(10,("Entering sys_acl_set_file\n")); |
| 2470 | DEBUG(10,("File name is %s\n",name)); |
| 2471 | |
| 2472 | /* AIX has no default ACL */ |
| 2473 | if(acltype == SMB_ACL_TYPE_DEFAULT) |
| 2474 | return(0); |
| 2475 | |
| 2476 | acl_length = BUFSIZ; |
| 2477 | file_acl = (struct acl *)SMB_MALLOC(BUFSIZ); |
| 2478 | |
| 2479 | if(file_acl == NULL) { |
| 2480 | errno = ENOMEM; |
| 2481 | DEBUG(0,("Error in sys_acl_set_file is %d\n",errno)); |
| 2482 | return(-1); |
| 2483 | } |
| 2484 | |
| 2485 | memset(file_acl,0,BUFSIZ); |
| 2486 | |
| 2487 | file_acl->acl_len = ACL_SIZ; |
| 2488 | file_acl->acl_mode = S_IXACL; |
| 2489 | |
| 2490 | for(acl_entry_link=theacl; acl_entry_link != NULL; acl_entry_link = acl_entry_link->nextp) { |
| 2491 | acl_entry_link->entryp->ace_access >>= 6; |
| 2492 | id_type = acl_entry_link->entryp->ace_id->id_type; |
| 2493 | |
| 2494 | switch(id_type) { |
| 2495 | case SMB_ACL_USER_OBJ: |
| 2496 | file_acl->u_access = acl_entry_link->entryp->ace_access; |
| 2497 | continue; |
| 2498 | case SMB_ACL_GROUP_OBJ: |
| 2499 | file_acl->g_access = acl_entry_link->entryp->ace_access; |
| 2500 | continue; |
| 2501 | case SMB_ACL_OTHER: |
| 2502 | file_acl->o_access = acl_entry_link->entryp->ace_access; |
| 2503 | continue; |
| 2504 | case SMB_ACL_MASK: |
| 2505 | continue; |
| 2506 | } |
| 2507 | |
| 2508 | if((file_acl->acl_len + sizeof(struct acl_entry)) > acl_length) { |
| 2509 | acl_length += sizeof(struct acl_entry); |
| 2510 | file_acl_temp = (struct acl *)SMB_MALLOC(acl_length); |
| 2511 | if(file_acl_temp == NULL) { |
| 2512 | SAFE_FREE(file_acl); |
| 2513 | errno = ENOMEM; |
| 2514 | DEBUG(0,("Error in sys_acl_set_file is %d\n",errno)); |
| 2515 | return(-1); |
| 2516 | } |
| 2517 | |
| 2518 | memcpy(file_acl_temp,file_acl,file_acl->acl_len); |
| 2519 | SAFE_FREE(file_acl); |
| 2520 | file_acl = file_acl_temp; |
| 2521 | } |
| 2522 | |
| 2523 | acl_entry = (struct acl_entry *)((char *)file_acl + file_acl->acl_len); |
| 2524 | file_acl->acl_len += sizeof(struct acl_entry); |
| 2525 | acl_entry->ace_len = acl_entry_link->entryp->ace_len; |
| 2526 | acl_entry->ace_access = acl_entry_link->entryp->ace_access; |
| 2527 | |
| 2528 | /* In order to use this, we'll need to wait until we can get denies */ |
| 2529 | /* if(!acl_entry->ace_access && acl_entry->ace_type == ACC_PERMIT) |
| 2530 | acl_entry->ace_type = ACC_SPECIFY; */ |
| 2531 | |
| 2532 | acl_entry->ace_type = ACC_SPECIFY; |
| 2533 | |
| 2534 | ace_id = acl_entry->ace_id; |
| 2535 | |
| 2536 | ace_id->id_type = acl_entry_link->entryp->ace_id->id_type; |
| 2537 | DEBUG(10,("The id type is %d\n",ace_id->id_type)); |
| 2538 | ace_id->id_len = acl_entry_link->entryp->ace_id->id_len; |
| 2539 | memcpy(&user_id, acl_entry_link->entryp->ace_id->id_data, sizeof(uid_t)); |
| 2540 | memcpy(acl_entry->ace_id->id_data, &user_id, sizeof(uid_t)); |
| 2541 | } |
| 2542 | |
| 2543 | rc = chacl(name,file_acl,file_acl->acl_len); |
| 2544 | DEBUG(10,("errno is %d\n",errno)); |
| 2545 | DEBUG(10,("return code is %d\n",rc)); |
| 2546 | SAFE_FREE(file_acl); |
| 2547 | DEBUG(10,("Exiting the sys_acl_set_file\n")); |
| 2548 | return(rc); |
| 2549 | } |
| 2550 | |
| 2551 | int sys_acl_set_fd( int fd, SMB_ACL_T theacl) |
| 2552 | { |
| 2553 | struct acl_entry_link *acl_entry_link = NULL; |
| 2554 | struct acl *file_acl = NULL; |
| 2555 | struct acl *file_acl_temp = NULL; |
| 2556 | struct acl_entry *acl_entry = NULL; |
| 2557 | struct ace_id *ace_id = NULL; |
| 2558 | uint id_type; |
| 2559 | uint user_id; |
| 2560 | uint acl_length; |
| 2561 | uint rc; |
| 2562 | |
| 2563 | DEBUG(10,("Entering sys_acl_set_fd\n")); |
| 2564 | acl_length = BUFSIZ; |
| 2565 | file_acl = (struct acl *)SMB_MALLOC(BUFSIZ); |
| 2566 | |
| 2567 | if(file_acl == NULL) { |
| 2568 | errno = ENOMEM; |
| 2569 | DEBUG(0,("Error in sys_acl_set_fd is %d\n",errno)); |
| 2570 | return(-1); |
| 2571 | } |
| 2572 | |
| 2573 | memset(file_acl,0,BUFSIZ); |
| 2574 | |
| 2575 | file_acl->acl_len = ACL_SIZ; |
| 2576 | file_acl->acl_mode = S_IXACL; |
| 2577 | |
| 2578 | for(acl_entry_link=theacl; acl_entry_link != NULL; acl_entry_link = acl_entry_link->nextp) { |
| 2579 | acl_entry_link->entryp->ace_access >>= 6; |
| 2580 | id_type = acl_entry_link->entryp->ace_id->id_type; |
| 2581 | DEBUG(10,("The id_type is %d\n",id_type)); |
| 2582 | |
| 2583 | switch(id_type) { |
| 2584 | case SMB_ACL_USER_OBJ: |
| 2585 | file_acl->u_access = acl_entry_link->entryp->ace_access; |
| 2586 | continue; |
| 2587 | case SMB_ACL_GROUP_OBJ: |
| 2588 | file_acl->g_access = acl_entry_link->entryp->ace_access; |
| 2589 | continue; |
| 2590 | case SMB_ACL_OTHER: |
| 2591 | file_acl->o_access = acl_entry_link->entryp->ace_access; |
| 2592 | continue; |
| 2593 | case SMB_ACL_MASK: |
| 2594 | continue; |
| 2595 | } |
| 2596 | |
| 2597 | if((file_acl->acl_len + sizeof(struct acl_entry)) > acl_length) { |
| 2598 | acl_length += sizeof(struct acl_entry); |
| 2599 | file_acl_temp = (struct acl *)SMB_MALLOC(acl_length); |
| 2600 | if(file_acl_temp == NULL) { |
| 2601 | SAFE_FREE(file_acl); |
| 2602 | errno = ENOMEM; |
| 2603 | DEBUG(0,("Error in sys_acl_set_fd is %d\n",errno)); |
| 2604 | return(-1); |
| 2605 | } |
| 2606 | |
| 2607 | memcpy(file_acl_temp,file_acl,file_acl->acl_len); |
| 2608 | SAFE_FREE(file_acl); |
| 2609 | file_acl = file_acl_temp; |
| 2610 | } |
| 2611 | |
| 2612 | acl_entry = (struct acl_entry *)((char *)file_acl + file_acl->acl_len); |
| 2613 | file_acl->acl_len += sizeof(struct acl_entry); |
| 2614 | acl_entry->ace_len = acl_entry_link->entryp->ace_len; |
| 2615 | acl_entry->ace_access = acl_entry_link->entryp->ace_access; |
| 2616 | |
| 2617 | /* In order to use this, we'll need to wait until we can get denies */ |
| 2618 | /* if(!acl_entry->ace_access && acl_entry->ace_type == ACC_PERMIT) |
| 2619 | acl_entry->ace_type = ACC_SPECIFY; */ |
| 2620 | |
| 2621 | acl_entry->ace_type = ACC_SPECIFY; |
| 2622 | |
| 2623 | ace_id = acl_entry->ace_id; |
| 2624 | |
| 2625 | ace_id->id_type = acl_entry_link->entryp->ace_id->id_type; |
| 2626 | DEBUG(10,("The id type is %d\n",ace_id->id_type)); |
| 2627 | ace_id->id_len = acl_entry_link->entryp->ace_id->id_len; |
| 2628 | memcpy(&user_id, acl_entry_link->entryp->ace_id->id_data, sizeof(uid_t)); |
| 2629 | memcpy(ace_id->id_data, &user_id, sizeof(uid_t)); |
| 2630 | } |
| 2631 | |
| 2632 | rc = fchacl(fd,file_acl,file_acl->acl_len); |
| 2633 | DEBUG(10,("errno is %d\n",errno)); |
| 2634 | DEBUG(10,("return code is %d\n",rc)); |
| 2635 | SAFE_FREE(file_acl); |
| 2636 | DEBUG(10,("Exiting sys_acl_set_fd\n")); |
| 2637 | return(rc); |
| 2638 | } |
| 2639 | |
| 2640 | int sys_acl_delete_def_file(const char *name) |
| 2641 | { |
| 2642 | /* AIX has no default ACL */ |
| 2643 | return 0; |
| 2644 | } |
| 2645 | |
| 2646 | int sys_acl_free_acl(SMB_ACL_T posix_acl) |
| 2647 | { |
| 2648 | struct acl_entry_link *acl_entry_link; |
| 2649 | |
| 2650 | for(acl_entry_link = posix_acl->nextp; acl_entry_link->nextp != NULL; acl_entry_link = acl_entry_link->nextp) { |
| 2651 | SAFE_FREE(acl_entry_link->prevp->entryp); |
| 2652 | SAFE_FREE(acl_entry_link->prevp); |
| 2653 | } |
| 2654 | |
| 2655 | SAFE_FREE(acl_entry_link->prevp->entryp); |
| 2656 | SAFE_FREE(acl_entry_link->prevp); |
| 2657 | SAFE_FREE(acl_entry_link->entryp); |
| 2658 | SAFE_FREE(acl_entry_link); |
| 2659 | |
| 2660 | return(0); |
| 2661 | } |
| 2662 | |
| 2663 | int sys_acl_free_qualifier(void *qual, SMB_ACL_TAG_T tagtype) |
| 2664 | { |
| 2665 | return(0); |
| 2666 | } |
| 2667 | |
| 2668 | #else /* No ACLs. */ |
| 2669 | |
| 2670 | #error No ACL functions defined for this platform! |
| 2671 | |
| 2672 | #endif |
| 2673 | |
| 2674 | /************************************************************************ |
| 2675 | Deliberately outside the ACL defines. Return 1 if this is a "no acls" |
| 2676 | errno, 0 if not. |
| 2677 | ************************************************************************/ |
| 2678 | |
| 2679 | int no_acl_syscall_error(int err) |
| 2680 | { |
| 2681 | #if defined(ENOSYS) |
| 2682 | if (err == ENOSYS) { |
| 2683 | return 1; |
| 2684 | } |
| 2685 | #endif |
| 2686 | #if defined(ENOTSUP) |
| 2687 | if (err == ENOTSUP) { |
| 2688 | return 1; |
| 2689 | } |
| 2690 | #endif |
| 2691 | return 0; |
| 2692 | } |
| 2693 | |
| 2694 | #endif /* SUPPORT_ACLS */ |