1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23 * Use is subject to license terms. 24 */ 25 26 /* 27 * Database related utility routines 28 */ 29 30 #include <stdio.h> 31 #include <stdlib.h> 32 #include <string.h> 33 #include <errno.h> 34 #include <sys/types.h> 35 #include <sys/stat.h> 36 #include <rpc/rpc.h> 37 #include <sys/sid.h> 38 #include <time.h> 39 #include <pwd.h> 40 #include <grp.h> 41 #include <pthread.h> 42 #include <assert.h> 43 #include <sys/u8_textprep.h> 44 45 #include "idmapd.h" 46 #include "adutils.h" 47 #include "string.h" 48 #include "idmap_priv.h" 49 #include "schema.h" 50 #include "nldaputils.h" 51 52 53 static idmap_retcode sql_compile_n_step_once(sqlite *, char *, 54 sqlite_vm **, int *, int, const char ***); 55 static idmap_retcode ad_lookup_one(lookup_state_t *, idmap_mapping *, 56 idmap_id_res *); 57 static idmap_retcode lookup_localsid2pid(idmap_mapping *, idmap_id_res *); 58 static idmap_retcode lookup_cache_name2sid(sqlite *, const char *, 59 const char *, char **, char **, idmap_rid_t *, int *); 60 61 62 #define EMPTY_NAME(name) (*name == 0 || strcmp(name, "\"\"") == 0) 63 64 #define DO_NOT_ALLOC_NEW_ID_MAPPING(req)\ 65 (req->flag & IDMAP_REQ_FLG_NO_NEW_ID_ALLOC) 66 67 #define AVOID_NAMESERVICE(req)\ 68 (req->flag & IDMAP_REQ_FLG_NO_NAMESERVICE) 69 70 #define ALLOW_WK_OR_LOCAL_SIDS_ONLY(req)\ 71 (req->flag & IDMAP_REQ_FLG_WK_OR_LOCAL_SIDS_ONLY) 72 73 #define IS_EPHEMERAL(pid) (pid > INT32_MAX && pid != SENTINEL_PID) 74 75 #define LOCALRID_MIN 1000 76 77 78 typedef enum init_db_option { 79 FAIL_IF_CORRUPT = 0, 80 REMOVE_IF_CORRUPT = 1 81 } init_db_option_t; 82 83 /* 84 * Data structure to store well-known SIDs and 85 * associated mappings (if any) 86 */ 87 typedef struct wksids_table { 88 const char *sidprefix; 89 uint32_t rid; 90 const char *winname; 91 int is_wuser; 92 uid_t pid; 93 int is_user; 94 int direction; 95 } wksids_table_t; 96 97 /* 98 * Thread specfic data to hold the database handles so that the 99 * databaes are not opened and closed for every request. It also 100 * contains the sqlite busy handler structure. 101 */ 102 103 struct idmap_busy { 104 const char *name; 105 const int *delays; 106 int delay_size; 107 int total; 108 int sec; 109 }; 110 111 112 typedef struct idmap_tsd { 113 sqlite *db_db; 114 sqlite *cache_db; 115 struct idmap_busy cache_busy; 116 struct idmap_busy db_busy; 117 } idmap_tsd_t; 118 119 120 121 static const int cache_delay_table[] = 122 { 1, 2, 5, 10, 15, 20, 25, 30, 35, 40, 123 50, 50, 60, 70, 80, 90, 100}; 124 125 static const int db_delay_table[] = 126 { 5, 10, 15, 20, 30, 40, 55, 70, 100}; 127 128 129 static pthread_key_t idmap_tsd_key; 130 131 void 132 idmap_tsd_destroy(void *key) 133 { 134 135 idmap_tsd_t *tsd = (idmap_tsd_t *)key; 136 if (tsd) { 137 if (tsd->db_db) 138 (void) sqlite_close(tsd->db_db); 139 if (tsd->cache_db) 140 (void) sqlite_close(tsd->cache_db); 141 free(tsd); 142 } 143 } 144 145 int 146 idmap_init_tsd_key(void) 147 { 148 return (pthread_key_create(&idmap_tsd_key, idmap_tsd_destroy)); 149 } 150 151 152 153 idmap_tsd_t * 154 idmap_get_tsd(void) 155 { 156 idmap_tsd_t *tsd; 157 158 if ((tsd = pthread_getspecific(idmap_tsd_key)) == NULL) { 159 /* No thread specific data so create it */ 160 if ((tsd = malloc(sizeof (*tsd))) != NULL) { 161 /* Initialize thread specific data */ 162 (void) memset(tsd, 0, sizeof (*tsd)); 163 /* save the trhread specific data */ 164 if (pthread_setspecific(idmap_tsd_key, tsd) != 0) { 165 /* Can't store key */ 166 free(tsd); 167 tsd = NULL; 168 } 169 } else { 170 tsd = NULL; 171 } 172 } 173 174 return (tsd); 175 } 176 177 /* 178 * A simple wrapper around u8_textprep_str() that returns the Unicode 179 * lower-case version of some string. The result must be freed. 180 */ 181 char * 182 tolower_u8(const char *s) 183 { 184 char *res = NULL; 185 char *outs; 186 size_t inlen, outlen, inbytesleft, outbytesleft; 187 int rc, err; 188 189 /* 190 * u8_textprep_str() does not allocate memory. The input and 191 * output buffers may differ in size (though that would be more 192 * likely when normalization is done). We have to loop over it... 193 * 194 * To improve the chances that we can avoid looping we add 10 195 * bytes of output buffer room the first go around. 196 */ 197 inlen = inbytesleft = strlen(s); 198 outlen = outbytesleft = inlen + 10; 199 if ((res = malloc(outlen)) == NULL) 200 return (NULL); 201 outs = res; 202 203 while ((rc = u8_textprep_str((char *)s, &inbytesleft, outs, 204 &outbytesleft, U8_TEXTPREP_TOLOWER, U8_UNICODE_LATEST, &err)) < 0 && 205 err == E2BIG) { 206 if ((res = realloc(res, outlen + inbytesleft)) == NULL) 207 return (NULL); 208 /* adjust input/output buffer pointers */ 209 s += (inlen - inbytesleft); 210 outs = res + outlen - outbytesleft; 211 /* adjust outbytesleft and outlen */ 212 outlen += inbytesleft; 213 outbytesleft += inbytesleft; 214 } 215 216 if (rc < 0) { 217 free(res); 218 res = NULL; 219 return (NULL); 220 } 221 222 res[outlen - outbytesleft] = '\0'; 223 224 return (res); 225 } 226 227 static int sql_exec_tran_no_cb(sqlite *db, char *sql, const char *dbname, 228 const char *while_doing); 229 230 231 /* 232 * Initialize 'dbname' using 'sql' 233 */ 234 static 235 int 236 init_db_instance(const char *dbname, int version, 237 const char *detect_version_sql, char * const *sql, 238 init_db_option_t opt, int *created, int *upgraded) 239 { 240 int rc, curr_version; 241 int tries = 1; 242 int prio = LOG_NOTICE; 243 sqlite *db = NULL; 244 char *errmsg = NULL; 245 246 *created = 0; 247 *upgraded = 0; 248 249 if (opt == REMOVE_IF_CORRUPT) 250 tries = 3; 251 252 rinse_repeat: 253 if (tries == 0) { 254 idmapdlog(LOG_ERR, "Failed to initialize db %s", dbname); 255 return (-1); 256 } 257 if (tries-- == 1) 258 /* Last try, log errors */ 259 prio = LOG_ERR; 260 261 db = sqlite_open(dbname, 0600, &errmsg); 262 if (db == NULL) { 263 idmapdlog(prio, "Error creating database %s (%s)", 264 dbname, CHECK_NULL(errmsg)); 265 sqlite_freemem(errmsg); 266 if (opt == REMOVE_IF_CORRUPT) 267 (void) unlink(dbname); 268 goto rinse_repeat; 269 } 270 271 sqlite_busy_timeout(db, 3000); 272 273 /* Detect current version of schema in the db, if any */ 274 curr_version = 0; 275 if (detect_version_sql != NULL) { 276 char *end, **results; 277 int nrow; 278 279 #ifdef IDMAPD_DEBUG 280 (void) fprintf(stderr, "Schema version detection SQL: %s\n", 281 detect_version_sql); 282 #endif /* IDMAPD_DEBUG */ 283 rc = sqlite_get_table(db, detect_version_sql, &results, 284 &nrow, NULL, &errmsg); 285 if (rc != SQLITE_OK) { 286 idmapdlog(prio, 287 "Error detecting schema version of db %s (%s)", 288 dbname, errmsg); 289 sqlite_freemem(errmsg); 290 sqlite_free_table(results); 291 sqlite_close(db); 292 return (-1); 293 } 294 if (nrow != 1) { 295 idmapdlog(prio, 296 "Error detecting schema version of db %s", dbname); 297 sqlite_close(db); 298 sqlite_free_table(results); 299 return (-1); 300 } 301 curr_version = strtol(results[1], &end, 10); 302 sqlite_free_table(results); 303 } 304 305 if (curr_version < 0) { 306 if (opt == REMOVE_IF_CORRUPT) 307 (void) unlink(dbname); 308 goto rinse_repeat; 309 } 310 311 if (curr_version == version) 312 goto done; 313 314 /* Install or upgrade schema */ 315 #ifdef IDMAPD_DEBUG 316 (void) fprintf(stderr, "Schema init/upgrade SQL: %s\n", 317 sql[curr_version]); 318 #endif /* IDMAPD_DEBUG */ 319 rc = sql_exec_tran_no_cb(db, sql[curr_version], dbname, 320 (curr_version == 0) ? "installing schema" : "upgrading schema"); 321 if (rc != 0) { 322 idmapdlog(prio, "Error %s schema for db %s", dbname, 323 (curr_version == 0) ? "installing schema" : 324 "upgrading schema"); 325 if (opt == REMOVE_IF_CORRUPT) 326 (void) unlink(dbname); 327 goto rinse_repeat; 328 } 329 330 *upgraded = (curr_version > 0); 331 *created = (curr_version == 0); 332 333 done: 334 (void) sqlite_close(db); 335 return (0); 336 } 337 338 339 /* 340 * This is the SQLite database busy handler that retries the SQL 341 * operation until it is successful. 342 */ 343 int 344 /* LINTED E_FUNC_ARG_UNUSED */ 345 idmap_sqlite_busy_handler(void *arg, const char *table_name, int count) 346 { 347 struct idmap_busy *busy = arg; 348 int delay; 349 struct timespec rqtp; 350 351 if (count == 1) { 352 busy->total = 0; 353 busy->sec = 2; 354 } 355 if (busy->total > 1000 * busy->sec) { 356 idmapdlog(LOG_DEBUG, 357 "Thread %d waited %d sec for the %s database", 358 pthread_self(), busy->sec, busy->name); 359 busy->sec++; 360 } 361 362 if (count <= busy->delay_size) { 363 delay = busy->delays[count-1]; 364 } else { 365 delay = busy->delays[busy->delay_size - 1]; 366 } 367 busy->total += delay; 368 rqtp.tv_sec = 0; 369 rqtp.tv_nsec = delay * (NANOSEC / MILLISEC); 370 (void) nanosleep(&rqtp, NULL); 371 return (1); 372 } 373 374 375 /* 376 * Get the database handle 377 */ 378 idmap_retcode 379 get_db_handle(sqlite **db) 380 { 381 char *errmsg; 382 idmap_tsd_t *tsd; 383 384 /* 385 * Retrieve the db handle from thread-specific storage 386 * If none exists, open and store in thread-specific storage. 387 */ 388 if ((tsd = idmap_get_tsd()) == NULL) { 389 idmapdlog(LOG_ERR, 390 "Error getting thread specific data for %s", IDMAP_DBNAME); 391 return (IDMAP_ERR_MEMORY); 392 } 393 394 if (tsd->db_db == NULL) { 395 tsd->db_db = sqlite_open(IDMAP_DBNAME, 0, &errmsg); 396 if (tsd->db_db == NULL) { 397 idmapdlog(LOG_ERR, "Error opening database %s (%s)", 398 IDMAP_DBNAME, CHECK_NULL(errmsg)); 399 sqlite_freemem(errmsg); 400 return (IDMAP_ERR_DB); 401 } 402 403 tsd->db_busy.name = IDMAP_DBNAME; 404 tsd->db_busy.delays = db_delay_table; 405 tsd->db_busy.delay_size = sizeof (db_delay_table) / 406 sizeof (int); 407 sqlite_busy_handler(tsd->db_db, idmap_sqlite_busy_handler, 408 &tsd->db_busy); 409 } 410 *db = tsd->db_db; 411 return (IDMAP_SUCCESS); 412 } 413 414 /* 415 * Get the cache handle 416 */ 417 idmap_retcode 418 get_cache_handle(sqlite **cache) 419 { 420 char *errmsg; 421 idmap_tsd_t *tsd; 422 423 /* 424 * Retrieve the db handle from thread-specific storage 425 * If none exists, open and store in thread-specific storage. 426 */ 427 if ((tsd = idmap_get_tsd()) == NULL) { 428 idmapdlog(LOG_ERR, "Error getting thread specific data for %s", 429 IDMAP_DBNAME); 430 return (IDMAP_ERR_MEMORY); 431 } 432 433 if (tsd->cache_db == NULL) { 434 tsd->cache_db = sqlite_open(IDMAP_CACHENAME, 0, &errmsg); 435 if (tsd->cache_db == NULL) { 436 idmapdlog(LOG_ERR, "Error opening database %s (%s)", 437 IDMAP_CACHENAME, CHECK_NULL(errmsg)); 438 sqlite_freemem(errmsg); 439 return (IDMAP_ERR_DB); 440 } 441 442 tsd->cache_busy.name = IDMAP_CACHENAME; 443 tsd->cache_busy.delays = cache_delay_table; 444 tsd->cache_busy.delay_size = sizeof (cache_delay_table) / 445 sizeof (int); 446 sqlite_busy_handler(tsd->cache_db, idmap_sqlite_busy_handler, 447 &tsd->cache_busy); 448 } 449 *cache = tsd->cache_db; 450 return (IDMAP_SUCCESS); 451 } 452 453 /* 454 * Initialize cache and db 455 */ 456 int 457 init_dbs() 458 { 459 char *sql[4]; 460 int created, upgraded; 461 462 /* name-based mappings; probably OK to blow away in a pinch(?) */ 463 sql[0] = DB_INSTALL_SQL; 464 sql[1] = DB_UPGRADE_FROM_v1_SQL; 465 sql[2] = NULL; 466 467 if (init_db_instance(IDMAP_DBNAME, DB_VERSION, DB_VERSION_SQL, sql, 468 FAIL_IF_CORRUPT, &created, &upgraded) < 0) 469 return (-1); 470 471 /* mappings, name/SID lookup cache + ephemeral IDs; OK to blow away */ 472 sql[0] = CACHE_INSTALL_SQL; 473 sql[1] = CACHE_UPGRADE_FROM_v1_SQL; 474 sql[2] = CACHE_UPGRADE_FROM_v2_SQL; 475 sql[3] = NULL; 476 477 if (init_db_instance(IDMAP_CACHENAME, CACHE_VERSION, CACHE_VERSION_SQL, 478 sql, REMOVE_IF_CORRUPT, &created, &upgraded) < 0) 479 return (-1); 480 481 _idmapdstate.new_eph_db = (created || upgraded) ? 1 : 0; 482 483 return (0); 484 } 485 486 /* 487 * Finalize databases 488 */ 489 void 490 fini_dbs() 491 { 492 } 493 494 /* 495 * This table is a listing of status codes that will be returned to the 496 * client when a SQL command fails with the corresponding error message. 497 */ 498 static msg_table_t sqlmsgtable[] = { 499 {IDMAP_ERR_U2W_NAMERULE_CONFLICT, 500 "columns unixname, is_user, u2w_order are not unique"}, 501 {IDMAP_ERR_W2U_NAMERULE_CONFLICT, 502 "columns winname, windomain, is_user, is_wuser, w2u_order are not" 503 " unique"}, 504 {IDMAP_ERR_W2U_NAMERULE_CONFLICT, "Conflicting w2u namerules"}, 505 {-1, NULL} 506 }; 507 508 /* 509 * idmapd's version of string2stat to map SQLite messages to 510 * status codes 511 */ 512 idmap_retcode 513 idmapd_string2stat(const char *msg) 514 { 515 int i; 516 for (i = 0; sqlmsgtable[i].msg; i++) { 517 if (strcasecmp(sqlmsgtable[i].msg, msg) == 0) 518 return (sqlmsgtable[i].retcode); 519 } 520 return (IDMAP_ERR_OTHER); 521 } 522 523 /* 524 * Executes some SQL in a transaction. 525 * 526 * Returns 0 on success, -1 if it failed but the rollback succeeded, -2 527 * if the rollback failed. 528 */ 529 static 530 int 531 sql_exec_tran_no_cb(sqlite *db, char *sql, const char *dbname, 532 const char *while_doing) 533 { 534 char *errmsg = NULL; 535 int rc; 536 537 rc = sqlite_exec(db, "BEGIN TRANSACTION;", NULL, NULL, &errmsg); 538 if (rc != SQLITE_OK) { 539 idmapdlog(LOG_ERR, "Begin transaction failed (%s) " 540 "while %s (%s)", errmsg, while_doing, dbname); 541 sqlite_freemem(errmsg); 542 return (-1); 543 } 544 545 rc = sqlite_exec(db, sql, NULL, NULL, &errmsg); 546 if (rc != SQLITE_OK) { 547 idmapdlog(LOG_ERR, "Database error (%s) while %s (%s)", errmsg, 548 while_doing, dbname); 549 sqlite_freemem(errmsg); 550 errmsg = NULL; 551 goto rollback; 552 } 553 554 rc = sqlite_exec(db, "COMMIT TRANSACTION", NULL, NULL, &errmsg); 555 if (rc == SQLITE_OK) { 556 sqlite_freemem(errmsg); 557 return (0); 558 } 559 560 idmapdlog(LOG_ERR, "Database commit error (%s) while s (%s)", 561 errmsg, while_doing, dbname); 562 sqlite_freemem(errmsg); 563 errmsg = NULL; 564 565 rollback: 566 rc = sqlite_exec(db, "ROLLBACK TRANSACTION", NULL, NULL, &errmsg); 567 if (rc != SQLITE_OK) { 568 idmapdlog(LOG_ERR, "Rollback failed (%s) while %s (%s)", 569 errmsg, while_doing, dbname); 570 sqlite_freemem(errmsg); 571 return (-2); 572 } 573 sqlite_freemem(errmsg); 574 575 return (-1); 576 } 577 578 /* 579 * Execute the given SQL statment without using any callbacks 580 */ 581 idmap_retcode 582 sql_exec_no_cb(sqlite *db, const char *dbname, char *sql) 583 { 584 char *errmsg = NULL; 585 int r; 586 idmap_retcode retcode; 587 588 r = sqlite_exec(db, sql, NULL, NULL, &errmsg); 589 assert(r != SQLITE_LOCKED && r != SQLITE_BUSY); 590 591 if (r != SQLITE_OK) { 592 idmapdlog(LOG_ERR, "Database error on %s while executing %s " 593 "(%s)", dbname, sql, CHECK_NULL(errmsg)); 594 retcode = idmapd_string2stat(errmsg); 595 if (errmsg != NULL) 596 sqlite_freemem(errmsg); 597 return (retcode); 598 } 599 600 return (IDMAP_SUCCESS); 601 } 602 603 /* 604 * Generate expression that can be used in WHERE statements. 605 * Examples: 606 * <prefix> <col> <op> <value> <suffix> 607 * "" "unixuser" "=" "foo" "AND" 608 */ 609 idmap_retcode 610 gen_sql_expr_from_rule(idmap_namerule *rule, char **out) 611 { 612 char *s_windomain = NULL, *s_winname = NULL; 613 char *s_unixname = NULL; 614 char *lower_winname; 615 int retcode = IDMAP_SUCCESS; 616 617 if (out == NULL) 618 return (IDMAP_ERR_ARG); 619 620 621 if (!EMPTY_STRING(rule->windomain)) { 622 s_windomain = sqlite_mprintf("AND windomain = %Q ", 623 rule->windomain); 624 if (s_windomain == NULL) { 625 retcode = IDMAP_ERR_MEMORY; 626 goto out; 627 } 628 } 629 630 if (!EMPTY_STRING(rule->winname)) { 631 if ((lower_winname = tolower_u8(rule->winname)) == NULL) 632 lower_winname = rule->winname; 633 s_winname = sqlite_mprintf( 634 "AND winname = %Q AND is_wuser = %d ", 635 lower_winname, rule->is_wuser ? 1 : 0); 636 if (lower_winname != rule->winname) 637 free(lower_winname); 638 if (s_winname == NULL) { 639 retcode = IDMAP_ERR_MEMORY; 640 goto out; 641 } 642 } 643 644 if (!EMPTY_STRING(rule->unixname)) { 645 s_unixname = sqlite_mprintf( 646 "AND unixname = %Q AND is_user = %d ", 647 rule->unixname, rule->is_user ? 1 : 0); 648 if (s_unixname == NULL) { 649 retcode = IDMAP_ERR_MEMORY; 650 goto out; 651 } 652 } 653 654 *out = sqlite_mprintf("%s %s %s", 655 s_windomain ? s_windomain : "", 656 s_winname ? s_winname : "", 657 s_unixname ? s_unixname : ""); 658 659 if (*out == NULL) { 660 retcode = IDMAP_ERR_MEMORY; 661 idmapdlog(LOG_ERR, "Out of memory"); 662 goto out; 663 } 664 665 out: 666 if (s_windomain != NULL) 667 sqlite_freemem(s_windomain); 668 if (s_winname != NULL) 669 sqlite_freemem(s_winname); 670 if (s_unixname != NULL) 671 sqlite_freemem(s_unixname); 672 673 return (retcode); 674 } 675 676 677 678 /* 679 * Generate and execute SQL statement for LIST RPC calls 680 */ 681 idmap_retcode 682 process_list_svc_sql(sqlite *db, const char *dbname, char *sql, uint64_t limit, 683 int flag, list_svc_cb cb, void *result) 684 { 685 list_cb_data_t cb_data; 686 char *errmsg = NULL; 687 int r; 688 idmap_retcode retcode = IDMAP_ERR_INTERNAL; 689 690 (void) memset(&cb_data, 0, sizeof (cb_data)); 691 cb_data.result = result; 692 cb_data.limit = limit; 693 cb_data.flag = flag; 694 695 696 r = sqlite_exec(db, sql, cb, &cb_data, &errmsg); 697 assert(r != SQLITE_LOCKED && r != SQLITE_BUSY); 698 switch (r) { 699 case SQLITE_OK: 700 retcode = IDMAP_SUCCESS; 701 break; 702 703 default: 704 retcode = IDMAP_ERR_INTERNAL; 705 idmapdlog(LOG_ERR, "Database error on %s while executing " 706 "%s (%s)", dbname, sql, CHECK_NULL(errmsg)); 707 break; 708 } 709 if (errmsg != NULL) 710 sqlite_freemem(errmsg); 711 return (retcode); 712 } 713 714 /* 715 * This routine is called by callbacks that process the results of 716 * LIST RPC calls to validate data and to allocate memory for 717 * the result array. 718 */ 719 idmap_retcode 720 validate_list_cb_data(list_cb_data_t *cb_data, int argc, char **argv, 721 int ncol, uchar_t **list, size_t valsize) 722 { 723 size_t nsize; 724 void *tmplist; 725 726 if (cb_data->limit > 0 && cb_data->next == cb_data->limit) 727 return (IDMAP_NEXT); 728 729 if (argc < ncol || argv == NULL) { 730 idmapdlog(LOG_ERR, "Invalid data"); 731 return (IDMAP_ERR_INTERNAL); 732 } 733 734 /* alloc in bulk to reduce number of reallocs */ 735 if (cb_data->next >= cb_data->len) { 736 nsize = (cb_data->len + SIZE_INCR) * valsize; 737 tmplist = realloc(*list, nsize); 738 if (tmplist == NULL) { 739 idmapdlog(LOG_ERR, "Out of memory"); 740 return (IDMAP_ERR_MEMORY); 741 } 742 *list = tmplist; 743 (void) memset(*list + (cb_data->len * valsize), 0, 744 SIZE_INCR * valsize); 745 cb_data->len += SIZE_INCR; 746 } 747 return (IDMAP_SUCCESS); 748 } 749 750 static 751 idmap_retcode 752 get_namerule_order(char *winname, char *windomain, char *unixname, 753 int direction, int is_diagonal, int *w2u_order, int *u2w_order) 754 { 755 *w2u_order = 0; 756 *u2w_order = 0; 757 758 /* 759 * Windows to UNIX lookup order: 760 * 1. winname@domain (or winname) to "" 761 * 2. winname@domain (or winname) to unixname 762 * 3. winname@* to "" 763 * 4. winname@* to unixname 764 * 5. *@domain (or *) to * 765 * 6. *@domain (or *) to "" 766 * 7. *@domain (or *) to unixname 767 * 8. *@* to * 768 * 9. *@* to "" 769 * 10. *@* to unixname 770 * 771 * winname is a special case of winname@domain when domain is the 772 * default domain. Similarly * is a special case of *@domain when 773 * domain is the default domain. 774 * 775 * Note that "" has priority over specific names because "" inhibits 776 * mappings and traditionally deny rules always had higher priority. 777 */ 778 if (direction != IDMAP_DIRECTION_U2W) { 779 /* bi-directional or from windows to unix */ 780 if (winname == NULL) 781 return (IDMAP_ERR_W2U_NAMERULE); 782 else if (unixname == NULL) 783 return (IDMAP_ERR_W2U_NAMERULE); 784 else if (EMPTY_NAME(winname)) 785 return (IDMAP_ERR_W2U_NAMERULE); 786 else if (*winname == '*' && windomain && *windomain == '*') { 787 if (*unixname == '*') 788 *w2u_order = 8; 789 else if (EMPTY_NAME(unixname)) 790 *w2u_order = 9; 791 else /* unixname == name */ 792 *w2u_order = 10; 793 } else if (*winname == '*') { 794 if (*unixname == '*') 795 *w2u_order = 5; 796 else if (EMPTY_NAME(unixname)) 797 *w2u_order = 6; 798 else /* name */ 799 *w2u_order = 7; 800 } else if (windomain != NULL && *windomain == '*') { 801 /* winname == name */ 802 if (*unixname == '*') 803 return (IDMAP_ERR_W2U_NAMERULE); 804 else if (EMPTY_NAME(unixname)) 805 *w2u_order = 3; 806 else /* name */ 807 *w2u_order = 4; 808 } else { 809 /* winname == name && windomain == null or name */ 810 if (*unixname == '*') 811 return (IDMAP_ERR_W2U_NAMERULE); 812 else if (EMPTY_NAME(unixname)) 813 *w2u_order = 1; 814 else /* name */ 815 *w2u_order = 2; 816 } 817 818 } 819 820 /* 821 * 1. unixname to "", non-diagonal 822 * 2. unixname to winname@domain (or winname), non-diagonal 823 * 3. unixname to "", diagonal 824 * 4. unixname to winname@domain (or winname), diagonal 825 * 5. * to *@domain (or *), non-diagonal 826 * 5. * to *@domain (or *), diagonal 827 * 7. * to "" 828 * 8. * to winname@domain (or winname) 829 * 9. * to "", non-diagonal 830 * 10. * to winname@domain (or winname), diagonal 831 */ 832 if (direction != IDMAP_DIRECTION_W2U) { 833 int diagonal = is_diagonal ? 1 : 0; 834 835 /* bi-directional or from unix to windows */ 836 if (unixname == NULL || EMPTY_NAME(unixname)) 837 return (IDMAP_ERR_U2W_NAMERULE); 838 else if (winname == NULL) 839 return (IDMAP_ERR_U2W_NAMERULE); 840 else if (windomain != NULL && *windomain == '*') 841 return (IDMAP_ERR_U2W_NAMERULE); 842 else if (*unixname == '*') { 843 if (*winname == '*') 844 *u2w_order = 5 + diagonal; 845 else if (EMPTY_NAME(winname)) 846 *u2w_order = 7 + 2 * diagonal; 847 else 848 *u2w_order = 8 + 2 * diagonal; 849 } else { 850 if (*winname == '*') 851 return (IDMAP_ERR_U2W_NAMERULE); 852 else if (EMPTY_NAME(winname)) 853 *u2w_order = 1 + 2 * diagonal; 854 else 855 *u2w_order = 2 + 2 * diagonal; 856 } 857 } 858 return (IDMAP_SUCCESS); 859 } 860 861 /* 862 * Generate and execute SQL statement to add name-based mapping rule 863 */ 864 idmap_retcode 865 add_namerule(sqlite *db, idmap_namerule *rule) 866 { 867 char *sql = NULL; 868 idmap_stat retcode; 869 char *dom = NULL; 870 int w2u_order, u2w_order; 871 char w2ubuf[11], u2wbuf[11]; 872 873 retcode = get_namerule_order(rule->winname, rule->windomain, 874 rule->unixname, rule->direction, 875 rule->is_user == rule->is_wuser ? 0 : 1, &w2u_order, &u2w_order); 876 if (retcode != IDMAP_SUCCESS) 877 goto out; 878 879 if (w2u_order) 880 (void) snprintf(w2ubuf, sizeof (w2ubuf), "%d", w2u_order); 881 if (u2w_order) 882 (void) snprintf(u2wbuf, sizeof (u2wbuf), "%d", u2w_order); 883 884 /* 885 * For the triggers on namerules table to work correctly: 886 * 1) Use NULL instead of 0 for w2u_order and u2w_order 887 * 2) Use "" instead of NULL for "no domain" 888 */ 889 890 if (!EMPTY_STRING(rule->windomain)) 891 dom = rule->windomain; 892 else if (lookup_wksids_name2sid(rule->winname, NULL, NULL, NULL, NULL) 893 == IDMAP_SUCCESS) { 894 /* well-known SIDs don't need domain */ 895 dom = ""; 896 } 897 898 RDLOCK_CONFIG(); 899 if (dom == NULL) { 900 if (_idmapdstate.cfg->pgcfg.default_domain) 901 dom = _idmapdstate.cfg->pgcfg.default_domain; 902 else 903 dom = ""; 904 } 905 sql = sqlite_mprintf("INSERT into namerules " 906 "(is_user, is_wuser, windomain, winname_display, is_nt4, " 907 "unixname, w2u_order, u2w_order) " 908 "VALUES(%d, %d, %Q, %Q, %d, %Q, %q, %q);", 909 rule->is_user ? 1 : 0, rule->is_wuser ? 1 : 0, dom, 910 rule->winname, rule->is_nt4 ? 1 : 0, rule->unixname, 911 w2u_order ? w2ubuf : NULL, u2w_order ? u2wbuf : NULL); 912 UNLOCK_CONFIG(); 913 914 if (sql == NULL) { 915 retcode = IDMAP_ERR_INTERNAL; 916 idmapdlog(LOG_ERR, "Out of memory"); 917 goto out; 918 } 919 920 retcode = sql_exec_no_cb(db, IDMAP_DBNAME, sql); 921 922 if (retcode == IDMAP_ERR_OTHER) 923 retcode = IDMAP_ERR_CFG; 924 925 out: 926 if (sql != NULL) 927 sqlite_freemem(sql); 928 return (retcode); 929 } 930 931 /* 932 * Flush name-based mapping rules 933 */ 934 idmap_retcode 935 flush_namerules(sqlite *db) 936 { 937 idmap_stat retcode; 938 939 retcode = sql_exec_no_cb(db, IDMAP_DBNAME, "DELETE FROM namerules;"); 940 941 return (retcode); 942 } 943 944 /* 945 * Generate and execute SQL statement to remove a name-based mapping rule 946 */ 947 idmap_retcode 948 rm_namerule(sqlite *db, idmap_namerule *rule) 949 { 950 char *sql = NULL; 951 idmap_stat retcode; 952 char buf[80]; 953 char *expr = NULL; 954 955 if (rule->direction < 0 && EMPTY_STRING(rule->windomain) && 956 EMPTY_STRING(rule->winname) && EMPTY_STRING(rule->unixname)) 957 return (IDMAP_SUCCESS); 958 959 buf[0] = 0; 960 961 if (rule->direction == IDMAP_DIRECTION_BI) 962 (void) snprintf(buf, sizeof (buf), "AND w2u_order > 0" 963 " AND u2w_order > 0"); 964 else if (rule->direction == IDMAP_DIRECTION_W2U) 965 (void) snprintf(buf, sizeof (buf), "AND w2u_order > 0" 966 " AND (u2w_order = 0 OR u2w_order ISNULL)"); 967 else if (rule->direction == IDMAP_DIRECTION_U2W) 968 (void) snprintf(buf, sizeof (buf), "AND u2w_order > 0" 969 " AND (w2u_order = 0 OR w2u_order ISNULL)"); 970 971 retcode = gen_sql_expr_from_rule(rule, &expr); 972 if (retcode != IDMAP_SUCCESS) 973 goto out; 974 975 sql = sqlite_mprintf("DELETE FROM namerules WHERE 1 %s %s;", expr, 976 buf); 977 978 if (sql == NULL) { 979 retcode = IDMAP_ERR_INTERNAL; 980 idmapdlog(LOG_ERR, "Out of memory"); 981 goto out; 982 } 983 984 985 retcode = sql_exec_no_cb(db, IDMAP_DBNAME, sql); 986 987 out: 988 if (expr != NULL) 989 sqlite_freemem(expr); 990 if (sql != NULL) 991 sqlite_freemem(sql); 992 return (retcode); 993 } 994 995 /* 996 * Compile the given SQL query and step just once. 997 * 998 * Input: 999 * db - db handle 1000 * sql - SQL statement 1001 * 1002 * Output: 1003 * vm - virtual SQL machine 1004 * ncol - number of columns in the result 1005 * values - column values 1006 * 1007 * Return values: 1008 * IDMAP_SUCCESS 1009 * IDMAP_ERR_NOTFOUND 1010 * IDMAP_ERR_INTERNAL 1011 */ 1012 1013 static 1014 idmap_retcode 1015 sql_compile_n_step_once(sqlite *db, char *sql, sqlite_vm **vm, int *ncol, 1016 int reqcol, const char ***values) 1017 { 1018 char *errmsg = NULL; 1019 int r; 1020 1021 if ((r = sqlite_compile(db, sql, NULL, vm, &errmsg)) != SQLITE_OK) { 1022 idmapdlog(LOG_ERR, "Database error during %s (%s)", sql, 1023 CHECK_NULL(errmsg)); 1024 sqlite_freemem(errmsg); 1025 return (IDMAP_ERR_INTERNAL); 1026 } 1027 1028 r = sqlite_step(*vm, ncol, values, NULL); 1029 assert(r != SQLITE_LOCKED && r != SQLITE_BUSY); 1030 1031 if (r == SQLITE_ROW) { 1032 if (ncol != NULL && *ncol < reqcol) { 1033 (void) sqlite_finalize(*vm, NULL); 1034 *vm = NULL; 1035 return (IDMAP_ERR_INTERNAL); 1036 } 1037 /* Caller will call finalize after using the results */ 1038 return (IDMAP_SUCCESS); 1039 } else if (r == SQLITE_DONE) { 1040 (void) sqlite_finalize(*vm, NULL); 1041 *vm = NULL; 1042 return (IDMAP_ERR_NOTFOUND); 1043 } 1044 1045 (void) sqlite_finalize(*vm, &errmsg); 1046 *vm = NULL; 1047 idmapdlog(LOG_ERR, "Database error during %s (%s)", sql, 1048 CHECK_NULL(errmsg)); 1049 sqlite_freemem(errmsg); 1050 return (IDMAP_ERR_INTERNAL); 1051 } 1052 1053 /* 1054 * Load config in the state. 1055 * 1056 * nm_siduid and nm_sidgid fields: 1057 * state->nm_siduid represents mode used by sid2uid and uid2sid 1058 * requests for directory-based name mappings. Similarly, 1059 * state->nm_sidgid represents mode used by sid2gid and gid2sid 1060 * requests. 1061 * 1062 * sid2uid/uid2sid: 1063 * none -> ds_name_mapping_enabled != true 1064 * AD-mode -> !nldap_winname_attr && ad_unixuser_attr 1065 * nldap-mode -> nldap_winname_attr && !ad_unixuser_attr 1066 * mixed-mode -> nldap_winname_attr && ad_unixuser_attr 1067 * 1068 * sid2gid/gid2sid: 1069 * none -> ds_name_mapping_enabled != true 1070 * AD-mode -> !nldap_winname_attr && ad_unixgroup_attr 1071 * nldap-mode -> nldap_winname_attr && !ad_unixgroup_attr 1072 * mixed-mode -> nldap_winname_attr && ad_unixgroup_attr 1073 */ 1074 idmap_retcode 1075 load_cfg_in_state(lookup_state_t *state) 1076 { 1077 state->nm_siduid = IDMAP_NM_NONE; 1078 state->nm_sidgid = IDMAP_NM_NONE; 1079 RDLOCK_CONFIG(); 1080 1081 state->eph_map_unres_sids = 0; 1082 if (_idmapdstate.cfg->pgcfg.eph_map_unres_sids) 1083 state->eph_map_unres_sids = 1; 1084 1085 if (_idmapdstate.cfg->pgcfg.default_domain != NULL) { 1086 state->defdom = 1087 strdup(_idmapdstate.cfg->pgcfg.default_domain); 1088 if (state->defdom == NULL) { 1089 UNLOCK_CONFIG(); 1090 return (IDMAP_ERR_MEMORY); 1091 } 1092 } else { 1093 UNLOCK_CONFIG(); 1094 return (IDMAP_SUCCESS); 1095 } 1096 if (_idmapdstate.cfg->pgcfg.ds_name_mapping_enabled == FALSE) { 1097 UNLOCK_CONFIG(); 1098 return (IDMAP_SUCCESS); 1099 } 1100 if (_idmapdstate.cfg->pgcfg.nldap_winname_attr != NULL) { 1101 state->nm_siduid = 1102 (_idmapdstate.cfg->pgcfg.ad_unixuser_attr != NULL) 1103 ? IDMAP_NM_MIXED : IDMAP_NM_NLDAP; 1104 state->nm_sidgid = 1105 (_idmapdstate.cfg->pgcfg.ad_unixgroup_attr != NULL) 1106 ? IDMAP_NM_MIXED : IDMAP_NM_NLDAP; 1107 } else { 1108 state->nm_siduid = 1109 (_idmapdstate.cfg->pgcfg.ad_unixuser_attr != NULL) 1110 ? IDMAP_NM_AD : IDMAP_NM_NONE; 1111 state->nm_sidgid = 1112 (_idmapdstate.cfg->pgcfg.ad_unixgroup_attr != NULL) 1113 ? IDMAP_NM_AD : IDMAP_NM_NONE; 1114 } 1115 if (_idmapdstate.cfg->pgcfg.ad_unixuser_attr != NULL) { 1116 state->ad_unixuser_attr = 1117 strdup(_idmapdstate.cfg->pgcfg.ad_unixuser_attr); 1118 if (state->ad_unixuser_attr == NULL) { 1119 UNLOCK_CONFIG(); 1120 return (IDMAP_ERR_MEMORY); 1121 } 1122 } 1123 if (_idmapdstate.cfg->pgcfg.ad_unixgroup_attr != NULL) { 1124 state->ad_unixgroup_attr = 1125 strdup(_idmapdstate.cfg->pgcfg.ad_unixgroup_attr); 1126 if (state->ad_unixgroup_attr == NULL) { 1127 UNLOCK_CONFIG(); 1128 return (IDMAP_ERR_MEMORY); 1129 } 1130 } 1131 if (_idmapdstate.cfg->pgcfg.nldap_winname_attr != NULL) { 1132 state->nldap_winname_attr = 1133 strdup(_idmapdstate.cfg->pgcfg.nldap_winname_attr); 1134 if (state->nldap_winname_attr == NULL) { 1135 UNLOCK_CONFIG(); 1136 return (IDMAP_ERR_MEMORY); 1137 } 1138 } 1139 UNLOCK_CONFIG(); 1140 return (IDMAP_SUCCESS); 1141 } 1142 1143 /* 1144 * Set the rule with sepecified values. 1145 * All the strings are copied. 1146 */ 1147 static void 1148 idmap_namerule_set(idmap_namerule *rule, const char *windomain, 1149 const char *winname, const char *unixname, boolean_t is_user, 1150 boolean_t is_wuser, boolean_t is_nt4, int direction) 1151 { 1152 /* 1153 * Only update if they differ because we have to free 1154 * and duplicate the strings 1155 */ 1156 if (rule->windomain == NULL || windomain == NULL || 1157 strcmp(rule->windomain, windomain) != 0) { 1158 if (rule->windomain != NULL) { 1159 free(rule->windomain); 1160 rule->windomain = NULL; 1161 } 1162 if (windomain != NULL) 1163 rule->windomain = strdup(windomain); 1164 } 1165 1166 if (rule->winname == NULL || winname == NULL || 1167 strcmp(rule->winname, winname) != 0) { 1168 if (rule->winname != NULL) { 1169 free(rule->winname); 1170 rule->winname = NULL; 1171 } 1172 if (winname != NULL) 1173 rule->winname = strdup(winname); 1174 } 1175 1176 if (rule->unixname == NULL || unixname == NULL || 1177 strcmp(rule->unixname, unixname) != 0) { 1178 if (rule->unixname != NULL) { 1179 free(rule->unixname); 1180 rule->unixname = NULL; 1181 } 1182 if (unixname != NULL) 1183 rule->unixname = strdup(unixname); 1184 } 1185 1186 rule->is_user = is_user; 1187 rule->is_wuser = is_wuser; 1188 rule->is_nt4 = is_nt4; 1189 rule->direction = direction; 1190 } 1191 1192 1193 /* 1194 * Table for well-known SIDs. 1195 * 1196 * Background: 1197 * 1198 * Some of the well-known principals are stored under: 1199 * cn=WellKnown Security Principals, cn=Configuration, dc=<forestRootDomain> 1200 * They belong to objectClass "foreignSecurityPrincipal". They don't have 1201 * "samAccountName" nor "userPrincipalName" attributes. Their names are 1202 * available in "cn" and "name" attributes. Some of these principals have a 1203 * second entry under CN=ForeignSecurityPrincipals,dc=<forestRootDomain> and 1204 * these duplicate entries have the stringified SID in the "name" and "cn" 1205 * attributes instead of the actual name. 1206 * 1207 * Those of the form S-1-5-32-X are Builtin groups and are stored in the 1208 * cn=builtin container (except, Power Users which is not stored in AD) 1209 * 1210 * These principals are and will remain constant. Therefore doing AD lookups 1211 * provides no benefit. Also, using hard-coded table (and thus avoiding AD 1212 * lookup) improves performance and avoids additional complexity in the 1213 * adutils.c code. Moreover these SIDs can be used when no Active Directory 1214 * is available (such as the CIFS server's "workgroup" mode). 1215 * 1216 * Notes: 1217 * 1. Currently we don't support localization of well-known SID names, 1218 * unlike Windows. 1219 * 1220 * 2. Other well-known SIDs i.e. S-1-5-<domain>-<w-k RID> are not stored 1221 * here. AD does have normal user/group objects for these objects and 1222 * can be looked up using the existing AD lookup code. 1223 * 1224 * 3. See comments above lookup_wksids_sid2pid() for more information 1225 * on how we lookup the wksids table. 1226 */ 1227 static wksids_table_t wksids[] = { 1228 {"S-1-0", 0, "Nobody", 0, SENTINEL_PID, -1, 1}, 1229 {"S-1-1", 0, "Everyone", 0, SENTINEL_PID, -1, -1}, 1230 {"S-1-3", 0, "Creator Owner", 1, IDMAP_WK_CREATOR_OWNER_UID, 1, 0}, 1231 {"S-1-3", 1, "Creator Group", 0, IDMAP_WK_CREATOR_GROUP_GID, 0, 0}, 1232 {"S-1-3", 2, "Creator Owner Server", 1, SENTINEL_PID, -1, -1}, 1233 {"S-1-3", 3, "Creator Group Server", 0, SENTINEL_PID, -1, 1}, 1234 {"S-1-3", 4, "Owner Rights", 0, SENTINEL_PID, -1, -1}, 1235 {"S-1-5", 1, "Dialup", 0, SENTINEL_PID, -1, -1}, 1236 {"S-1-5", 2, "Network", 0, SENTINEL_PID, -1, -1}, 1237 {"S-1-5", 3, "Batch", 0, SENTINEL_PID, -1, -1}, 1238 {"S-1-5", 4, "Interactive", 0, SENTINEL_PID, -1, -1}, 1239 {"S-1-5", 6, "Service", 0, SENTINEL_PID, -1, -1}, 1240 {"S-1-5", 7, "Anonymous Logon", 0, GID_NOBODY, 0, 0}, 1241 {"S-1-5", 7, "Anonymous Logon", 0, UID_NOBODY, 1, 0}, 1242 {"S-1-5", 8, "Proxy", 0, SENTINEL_PID, -1, -1}, 1243 {"S-1-5", 9, "Enterprise Domain Controllers", 0, SENTINEL_PID, -1, -1}, 1244 {"S-1-5", 10, "Self", 0, SENTINEL_PID, -1, -1}, 1245 {"S-1-5", 11, "Authenticated Users", 0, SENTINEL_PID, -1, -1}, 1246 {"S-1-5", 12, "Restricted Code", 0, SENTINEL_PID, -1, -1}, 1247 {"S-1-5", 13, "Terminal Server User", 0, SENTINEL_PID, -1, -1}, 1248 {"S-1-5", 14, "Remote Interactive Logon", 0, SENTINEL_PID, -1, -1}, 1249 {"S-1-5", 15, "This Organization", 0, SENTINEL_PID, -1, -1}, 1250 {"S-1-5", 17, "IUSR", 0, SENTINEL_PID, -1, -1}, 1251 {"S-1-5", 18, "Local System", 0, IDMAP_WK_LOCAL_SYSTEM_GID, 0, 0}, 1252 {"S-1-5", 19, "Local Service", 0, SENTINEL_PID, -1, -1}, 1253 {"S-1-5", 20, "Network Service", 0, SENTINEL_PID, -1, -1}, 1254 {"S-1-5", 1000, "Other Organization", 0, SENTINEL_PID, -1, -1}, 1255 {"S-1-5-32", 544, "Administrators", 0, SENTINEL_PID, -1, -1}, 1256 {"S-1-5-32", 545, "Users", 0, SENTINEL_PID, -1, -1}, 1257 {"S-1-5-32", 546, "Guests", 0, SENTINEL_PID, -1, -1}, 1258 {"S-1-5-32", 547, "Power Users", 0, SENTINEL_PID, -1, -1}, 1259 {"S-1-5-32", 548, "Account Operators", 0, SENTINEL_PID, -1, -1}, 1260 {"S-1-5-32", 549, "Server Operators", 0, SENTINEL_PID, -1, -1}, 1261 {"S-1-5-32", 550, "Print Operators", 0, SENTINEL_PID, -1, -1}, 1262 {"S-1-5-32", 551, "Backup Operators", 0, SENTINEL_PID, -1, -1}, 1263 {"S-1-5-32", 552, "Replicator", 0, SENTINEL_PID, -1, -1}, 1264 {"S-1-5-32", 554, "Pre-Windows 2000 Compatible Access", 0, 1265 SENTINEL_PID, -1, -1}, 1266 {"S-1-5-32", 555, "Remote Desktop Users", 0, SENTINEL_PID, -1, -1}, 1267 {"S-1-5-32", 556, "Network Configuration Operators", 0, 1268 SENTINEL_PID, -1, -1}, 1269 {"S-1-5-32", 557, "Incoming Forest Trust Builders", 0, 1270 SENTINEL_PID, -1, -1}, 1271 {"S-1-5-32", 558, "Performance Monitor Users", 0, SENTINEL_PID, -1, -1}, 1272 {"S-1-5-32", 559, "Performance Log Users", 0, SENTINEL_PID, -1, -1}, 1273 {"S-1-5-32", 560, "Windows Authorization Access Group", 0, 1274 SENTINEL_PID, -1, -1}, 1275 {"S-1-5-32", 561, "Terminal Server License Servers", 0, 1276 SENTINEL_PID, -1, -1}, 1277 {"S-1-5-32", 561, "Distributed COM Users", 0, SENTINEL_PID, -1, -1}, 1278 {"S-1-5-32", 568, "IIS_IUSRS", 0, SENTINEL_PID, -1, -1}, 1279 {"S-1-5-32", 569, "Cryptographic Operators", 0, SENTINEL_PID, -1, -1}, 1280 {"S-1-5-32", 573, "Event Log Readers", 0, SENTINEL_PID, -1, -1}, 1281 {"S-1-5-32", 574, "Certificate Service DCOM Access", 0, 1282 SENTINEL_PID, -1, -1}, 1283 {"S-1-5-64", 21, "Digest Authentication", 0, SENTINEL_PID, -1, -1}, 1284 {"S-1-5-64", 10, "NTLM Authentication", 0, SENTINEL_PID, -1, -1}, 1285 {"S-1-5-64", 14, "SChannel Authentication", 0, SENTINEL_PID, -1, -1}, 1286 {NULL, UINT32_MAX, NULL, -1, SENTINEL_PID, -1, -1} 1287 }; 1288 1289 /* 1290 * Lookup well-known SIDs table either by winname or by SID. 1291 * If the given winname or SID is a well-known SID then we set wksid 1292 * variable and then proceed to see if the SID has a hard mapping to 1293 * a particular UID/GID (Ex: Creator Owner/Creator Group mapped to 1294 * fixed ephemeral ids). If we find such mapping then we return 1295 * success otherwise notfound. If a well-known SID is mapped to 1296 * SENTINEL_PID and the direction field is set (bi-directional or 1297 * win2unix) then we treat it as inhibited mapping and return no 1298 * mapping (Ex. S-1-0-0). 1299 */ 1300 static 1301 idmap_retcode 1302 lookup_wksids_sid2pid(idmap_mapping *req, idmap_id_res *res, int *wksid) 1303 { 1304 int i; 1305 1306 *wksid = 0; 1307 1308 for (i = 0; wksids[i].sidprefix != NULL; i++) { 1309 if (req->id1.idmap_id_u.sid.prefix != NULL) { 1310 if ((strcasecmp(wksids[i].sidprefix, 1311 req->id1.idmap_id_u.sid.prefix) != 0) || 1312 wksids[i].rid != req->id1.idmap_id_u.sid.rid) 1313 /* this is not our SID */ 1314 continue; 1315 if (req->id1name == NULL) { 1316 req->id1name = strdup(wksids[i].winname); 1317 if (req->id1name == NULL) 1318 return (IDMAP_ERR_MEMORY); 1319 } 1320 } else if (req->id1name != NULL) { 1321 if (strcasecmp(wksids[i].winname, req->id1name) != 0) 1322 /* this is not our winname */ 1323 continue; 1324 req->id1.idmap_id_u.sid.prefix = 1325 strdup(wksids[i].sidprefix); 1326 if (req->id1.idmap_id_u.sid.prefix == NULL) 1327 return (IDMAP_ERR_MEMORY); 1328 req->id1.idmap_id_u.sid.rid = wksids[i].rid; 1329 } 1330 1331 *wksid = 1; 1332 req->direction |= _IDMAP_F_DONT_UPDATE_NAMECACHE; 1333 1334 req->id1.idtype = (wksids[i].is_wuser) ? 1335 IDMAP_USID : IDMAP_GSID; 1336 1337 if (wksids[i].pid == SENTINEL_PID) { 1338 if (wksids[i].direction == IDMAP_DIRECTION_BI || 1339 wksids[i].direction == IDMAP_DIRECTION_W2U) 1340 /* Inhibited */ 1341 return (IDMAP_ERR_NOMAPPING); 1342 /* Not mapped */ 1343 if (res->id.idtype == IDMAP_POSIXID) { 1344 res->id.idtype = 1345 (wksids[i].is_wuser) ? 1346 IDMAP_UID : IDMAP_GID; 1347 } 1348 return (IDMAP_ERR_NOTFOUND); 1349 } else if (wksids[i].direction == IDMAP_DIRECTION_U2W) 1350 continue; 1351 1352 switch (res->id.idtype) { 1353 case IDMAP_UID: 1354 if (wksids[i].is_user == 0) 1355 continue; 1356 res->id.idmap_id_u.uid = wksids[i].pid; 1357 res->direction = wksids[i].direction; 1358 if (req->flag & IDMAP_REQ_FLG_MAPPING_INFO) { 1359 res->info.how.map_type = 1360 IDMAP_MAP_TYPE_KNOWN_SID; 1361 res->info.src = IDMAP_MAP_SRC_HARD_CODED; 1362 } 1363 return (IDMAP_SUCCESS); 1364 case IDMAP_GID: 1365 if (wksids[i].is_user == 1) 1366 continue; 1367 res->id.idmap_id_u.gid = wksids[i].pid; 1368 res->direction = wksids[i].direction; 1369 if (req->flag & IDMAP_REQ_FLG_MAPPING_INFO) { 1370 res->info.how.map_type = 1371 IDMAP_MAP_TYPE_KNOWN_SID; 1372 res->info.src = IDMAP_MAP_SRC_HARD_CODED; 1373 } 1374 return (IDMAP_SUCCESS); 1375 case IDMAP_POSIXID: 1376 res->id.idmap_id_u.uid = wksids[i].pid; 1377 res->id.idtype = (!wksids[i].is_user) ? 1378 IDMAP_GID : IDMAP_UID; 1379 res->direction = wksids[i].direction; 1380 if (req->flag & IDMAP_REQ_FLG_MAPPING_INFO) { 1381 res->info.how.map_type = 1382 IDMAP_MAP_TYPE_KNOWN_SID; 1383 res->info.src = IDMAP_MAP_SRC_HARD_CODED; 1384 } 1385 return (IDMAP_SUCCESS); 1386 default: 1387 return (IDMAP_ERR_NOTSUPPORTED); 1388 } 1389 } 1390 return (IDMAP_ERR_NOTFOUND); 1391 } 1392 1393 1394 static 1395 idmap_retcode 1396 lookup_wksids_pid2sid(idmap_mapping *req, idmap_id_res *res, int is_user) 1397 { 1398 int i; 1399 if (req->id1.idmap_id_u.uid == SENTINEL_PID) 1400 return (IDMAP_ERR_NOTFOUND); 1401 for (i = 0; wksids[i].sidprefix != NULL; i++) { 1402 if (wksids[i].pid == req->id1.idmap_id_u.uid && 1403 wksids[i].is_user == is_user && 1404 wksids[i].direction != IDMAP_DIRECTION_W2U) { 1405 if (res->id.idtype == IDMAP_SID) { 1406 res->id.idtype = (wksids[i].is_wuser) ? 1407 IDMAP_USID : IDMAP_GSID; 1408 } 1409 res->id.idmap_id_u.sid.rid = wksids[i].rid; 1410 res->id.idmap_id_u.sid.prefix = 1411 strdup(wksids[i].sidprefix); 1412 if (res->id.idmap_id_u.sid.prefix == NULL) { 1413 idmapdlog(LOG_ERR, "Out of memory"); 1414 return (IDMAP_ERR_MEMORY); 1415 } 1416 res->direction = wksids[i].direction; 1417 if (req->flag & IDMAP_REQ_FLG_MAPPING_INFO) { 1418 res->info.how.map_type = 1419 IDMAP_MAP_TYPE_KNOWN_SID; 1420 res->info.src = IDMAP_MAP_SRC_HARD_CODED; 1421 } 1422 return (IDMAP_SUCCESS); 1423 } 1424 } 1425 return (IDMAP_ERR_NOTFOUND); 1426 } 1427 1428 idmap_retcode 1429 lookup_wksids_name2sid(const char *name, char **canonname, char **sidprefix, 1430 idmap_rid_t *rid, int *type) 1431 { 1432 int i; 1433 1434 if ((strncasecmp(name, "BUILTIN\\", 8) == 0) || 1435 (strncasecmp(name, "BUILTIN/", 8) == 0)) 1436 name += 8; 1437 1438 for (i = 0; wksids[i].sidprefix != NULL; i++) { 1439 if (strcasecmp(wksids[i].winname, name) != 0) 1440 continue; 1441 if (sidprefix != NULL && 1442 (*sidprefix = strdup(wksids[i].sidprefix)) == NULL) { 1443 idmapdlog(LOG_ERR, "Out of memory"); 1444 return (IDMAP_ERR_MEMORY); 1445 } 1446 if (canonname != NULL && 1447 (*canonname = strdup(wksids[i].winname)) == NULL) { 1448 idmapdlog(LOG_ERR, "Out of memory"); 1449 if (sidprefix != NULL) { 1450 free(*sidprefix); 1451 *sidprefix = NULL; 1452 } 1453 return (IDMAP_ERR_MEMORY); 1454 } 1455 if (type != NULL) 1456 *type = (wksids[i].is_wuser) ? 1457 _IDMAP_T_USER : _IDMAP_T_GROUP; 1458 if (rid != NULL) 1459 *rid = wksids[i].rid; 1460 return (IDMAP_SUCCESS); 1461 } 1462 return (IDMAP_ERR_NOTFOUND); 1463 } 1464 1465 static 1466 idmap_retcode 1467 lookup_cache_sid2pid(sqlite *cache, idmap_mapping *req, idmap_id_res *res) 1468 { 1469 char *end; 1470 char *sql = NULL; 1471 const char **values; 1472 sqlite_vm *vm = NULL; 1473 int ncol, is_user; 1474 uid_t pid; 1475 time_t curtime, exp; 1476 idmap_retcode retcode; 1477 char *is_user_string, *lower_name; 1478 1479 /* Current time */ 1480 errno = 0; 1481 if ((curtime = time(NULL)) == (time_t)-1) { 1482 idmapdlog(LOG_ERR, "Failed to get current time (%s)", 1483 strerror(errno)); 1484 retcode = IDMAP_ERR_INTERNAL; 1485 goto out; 1486 } 1487 1488 switch (res->id.idtype) { 1489 case IDMAP_UID: 1490 is_user_string = "1"; 1491 break; 1492 case IDMAP_GID: 1493 is_user_string = "0"; 1494 break; 1495 case IDMAP_POSIXID: 1496 /* the non-diagonal mapping */ 1497 is_user_string = "is_wuser"; 1498 break; 1499 default: 1500 retcode = IDMAP_ERR_NOTSUPPORTED; 1501 goto out; 1502 } 1503 1504 /* SQL to lookup the cache */ 1505 1506 if (req->id1.idmap_id_u.sid.prefix != NULL) { 1507 sql = sqlite_mprintf("SELECT pid, is_user, expiration, " 1508 "unixname, u2w, is_wuser, " 1509 "map_type, map_dn, map_attr, map_value, " 1510 "map_windomain, map_winname, map_unixname, map_is_nt4 " 1511 "FROM idmap_cache WHERE is_user = %s AND " 1512 "sidprefix = %Q AND rid = %u AND w2u = 1 AND " 1513 "(pid >= 2147483648 OR " 1514 "(expiration = 0 OR expiration ISNULL OR " 1515 "expiration > %d));", 1516 is_user_string, req->id1.idmap_id_u.sid.prefix, 1517 req->id1.idmap_id_u.sid.rid, curtime); 1518 } else if (req->id1name != NULL) { 1519 if ((lower_name = tolower_u8(req->id1name)) == NULL) 1520 lower_name = req->id1name; 1521 sql = sqlite_mprintf("SELECT pid, is_user, expiration, " 1522 "unixname, u2w, is_wuser, " 1523 "map_type, map_dn, map_attr, map_value, " 1524 "map_windomain, map_winname, map_unixname, map_is_nt4 " 1525 "FROM idmap_cache WHERE is_user = %s AND " 1526 "winname = %Q AND windomain = %Q AND w2u = 1 AND " 1527 "(pid >= 2147483648 OR " 1528 "(expiration = 0 OR expiration ISNULL OR " 1529 "expiration > %d));", 1530 is_user_string, lower_name, req->id1domain, 1531 curtime); 1532 if (lower_name != req->id1name) 1533 free(lower_name); 1534 } else { 1535 retcode = IDMAP_ERR_ARG; 1536 goto out; 1537 } 1538 if (sql == NULL) { 1539 idmapdlog(LOG_ERR, "Out of memory"); 1540 retcode = IDMAP_ERR_MEMORY; 1541 goto out; 1542 } 1543 retcode = sql_compile_n_step_once(cache, sql, &vm, &ncol, 1544 14, &values); 1545 sqlite_freemem(sql); 1546 1547 if (retcode == IDMAP_ERR_NOTFOUND) { 1548 goto out; 1549 } else if (retcode == IDMAP_SUCCESS) { 1550 /* sanity checks */ 1551 if (values[0] == NULL || values[1] == NULL) { 1552 retcode = IDMAP_ERR_CACHE; 1553 goto out; 1554 } 1555 1556 pid = strtoul(values[0], &end, 10); 1557 is_user = strncmp(values[1], "0", 2) ? 1 : 0; 1558 1559 if (is_user) { 1560 res->id.idtype = IDMAP_UID; 1561 res->id.idmap_id_u.uid = pid; 1562 } else { 1563 res->id.idtype = IDMAP_GID; 1564 res->id.idmap_id_u.gid = pid; 1565 } 1566 1567 /* 1568 * We may have an expired ephemeral mapping. Consider 1569 * the expired entry as valid if we are not going to 1570 * perform name-based mapping. But do not renew the 1571 * expiration. 1572 * If we will be doing name-based mapping then store the 1573 * ephemeral pid in the result so that we can use it 1574 * if we end up doing dynamic mapping again. 1575 */ 1576 if (!DO_NOT_ALLOC_NEW_ID_MAPPING(req) && 1577 !AVOID_NAMESERVICE(req) && 1578 IS_EPHEMERAL(pid) && values[2] != NULL) { 1579 exp = strtoll(values[2], &end, 10); 1580 if (exp && exp <= curtime) { 1581 /* Store the ephemeral pid */ 1582 res->direction = IDMAP_DIRECTION_BI; 1583 req->direction |= is_user 1584 ? _IDMAP_F_EXP_EPH_UID 1585 : _IDMAP_F_EXP_EPH_GID; 1586 retcode = IDMAP_ERR_NOTFOUND; 1587 } 1588 } 1589 } 1590 1591 out: 1592 if (retcode == IDMAP_SUCCESS) { 1593 if (values[4] != NULL) 1594 res->direction = 1595 (strtol(values[4], &end, 10) == 0)? 1596 IDMAP_DIRECTION_W2U:IDMAP_DIRECTION_BI; 1597 else 1598 res->direction = IDMAP_DIRECTION_W2U; 1599 1600 if (values[3] != NULL) { 1601 if (req->id2name != NULL) 1602 free(req->id2name); 1603 req->id2name = strdup(values[3]); 1604 if (req->id2name == NULL) { 1605 idmapdlog(LOG_ERR, "Out of memory"); 1606 retcode = IDMAP_ERR_MEMORY; 1607 } 1608 } 1609 1610 req->id1.idtype = strncmp(values[5], "0", 2) ? 1611 IDMAP_USID : IDMAP_GSID; 1612 1613 if (req->flag & IDMAP_REQ_FLG_MAPPING_INFO) { 1614 res->info.src = IDMAP_MAP_SRC_CACHE; 1615 res->info.how.map_type = strtoul(values[6], &end, 10); 1616 switch (res->info.how.map_type) { 1617 case IDMAP_MAP_TYPE_DS_AD: 1618 res->info.how.idmap_how_u.ad.dn = 1619 strdup(values[7]); 1620 res->info.how.idmap_how_u.ad.attr = 1621 strdup(values[8]); 1622 res->info.how.idmap_how_u.ad.value = 1623 strdup(values[9]); 1624 break; 1625 1626 case IDMAP_MAP_TYPE_DS_NLDAP: 1627 res->info.how.idmap_how_u.nldap.dn = 1628 strdup(values[7]); 1629 res->info.how.idmap_how_u.nldap.attr = 1630 strdup(values[8]); 1631 res->info.how.idmap_how_u.nldap.value = 1632 strdup(values[9]); 1633 break; 1634 1635 case IDMAP_MAP_TYPE_RULE_BASED: 1636 res->info.how.idmap_how_u.rule.windomain = 1637 strdup(values[10]); 1638 res->info.how.idmap_how_u.rule.winname = 1639 strdup(values[11]); 1640 res->info.how.idmap_how_u.rule.unixname = 1641 strdup(values[12]); 1642 res->info.how.idmap_how_u.rule.is_nt4 = 1643 strtoul(values[13], &end, 1); 1644 res->info.how.idmap_how_u.rule.is_user = 1645 is_user; 1646 res->info.how.idmap_how_u.rule.is_wuser = 1647 strtoul(values[5], &end, 1); 1648 break; 1649 1650 case IDMAP_MAP_TYPE_EPHEMERAL: 1651 break; 1652 1653 case IDMAP_MAP_TYPE_LOCAL_SID: 1654 break; 1655 1656 case IDMAP_MAP_TYPE_KNOWN_SID: 1657 break; 1658 1659 default: 1660 /* Unknow mapping type */ 1661 assert(FALSE); 1662 } 1663 } 1664 } 1665 if (vm != NULL) 1666 (void) sqlite_finalize(vm, NULL); 1667 return (retcode); 1668 } 1669 1670 static 1671 idmap_retcode 1672 lookup_cache_sid2name(sqlite *cache, const char *sidprefix, idmap_rid_t rid, 1673 char **name, char **domain, int *type) 1674 { 1675 char *end; 1676 char *sql = NULL; 1677 const char **values; 1678 sqlite_vm *vm = NULL; 1679 int ncol; 1680 time_t curtime; 1681 idmap_retcode retcode = IDMAP_SUCCESS; 1682 1683 /* Get current time */ 1684 errno = 0; 1685 if ((curtime = time(NULL)) == (time_t)-1) { 1686 idmapdlog(LOG_ERR, "Failed to get current time (%s)", 1687 strerror(errno)); 1688 retcode = IDMAP_ERR_INTERNAL; 1689 goto out; 1690 } 1691 1692 /* SQL to lookup the cache */ 1693 sql = sqlite_mprintf("SELECT canon_name, domain, type " 1694 "FROM name_cache WHERE " 1695 "sidprefix = %Q AND rid = %u AND " 1696 "(expiration = 0 OR expiration ISNULL OR " 1697 "expiration > %d);", 1698 sidprefix, rid, curtime); 1699 if (sql == NULL) { 1700 idmapdlog(LOG_ERR, "Out of memory"); 1701 retcode = IDMAP_ERR_MEMORY; 1702 goto out; 1703 } 1704 retcode = sql_compile_n_step_once(cache, sql, &vm, &ncol, 3, &values); 1705 sqlite_freemem(sql); 1706 1707 if (retcode == IDMAP_SUCCESS) { 1708 if (type != NULL) { 1709 if (values[2] == NULL) { 1710 retcode = IDMAP_ERR_CACHE; 1711 goto out; 1712 } 1713 *type = strtol(values[2], &end, 10); 1714 } 1715 1716 if (name != NULL && values[0] != NULL) { 1717 if ((*name = strdup(values[0])) == NULL) { 1718 idmapdlog(LOG_ERR, "Out of memory"); 1719 retcode = IDMAP_ERR_MEMORY; 1720 goto out; 1721 } 1722 } 1723 1724 if (domain != NULL && values[1] != NULL) { 1725 if ((*domain = strdup(values[1])) == NULL) { 1726 if (name != NULL && *name) { 1727 free(*name); 1728 *name = NULL; 1729 } 1730 idmapdlog(LOG_ERR, "Out of memory"); 1731 retcode = IDMAP_ERR_MEMORY; 1732 goto out; 1733 } 1734 } 1735 } 1736 1737 out: 1738 if (vm != NULL) 1739 (void) sqlite_finalize(vm, NULL); 1740 return (retcode); 1741 } 1742 1743 /* 1744 * Given SID, find winname using name_cache OR 1745 * Given winname, find SID using name_cache. 1746 * Used when mapping win to unix i.e. req->id1 is windows id and 1747 * req->id2 is unix id 1748 */ 1749 static 1750 idmap_retcode 1751 lookup_name_cache(sqlite *cache, idmap_mapping *req, idmap_id_res *res) 1752 { 1753 int type = -1; 1754 idmap_retcode retcode; 1755 char *sidprefix = NULL; 1756 idmap_rid_t rid; 1757 char *name = NULL, *domain = NULL; 1758 1759 /* Done if we've both sid and winname */ 1760 if (req->id1.idmap_id_u.sid.prefix != NULL && req->id1name != NULL) 1761 return (IDMAP_SUCCESS); 1762 1763 /* Lookup sid to winname */ 1764 if (req->id1.idmap_id_u.sid.prefix != NULL) { 1765 retcode = lookup_cache_sid2name(cache, 1766 req->id1.idmap_id_u.sid.prefix, 1767 req->id1.idmap_id_u.sid.rid, &name, &domain, &type); 1768 goto out; 1769 } 1770 1771 /* Lookup winame to sid */ 1772 retcode = lookup_cache_name2sid(cache, req->id1name, req->id1domain, 1773 &name, &sidprefix, &rid, &type); 1774 1775 out: 1776 if (retcode != IDMAP_SUCCESS) { 1777 free(name); 1778 free(domain); 1779 free(sidprefix); 1780 return (retcode); 1781 } 1782 1783 if (res->id.idtype == IDMAP_POSIXID) { 1784 res->id.idtype = (type == _IDMAP_T_USER) ? 1785 IDMAP_UID : IDMAP_GID; 1786 } 1787 req->id1.idtype = (type == _IDMAP_T_USER) ? 1788 IDMAP_USID : IDMAP_GSID; 1789 1790 req->direction |= _IDMAP_F_DONT_UPDATE_NAMECACHE; 1791 if (name != NULL) { 1792 free(req->id1name); /* Free existing winname */ 1793 req->id1name = name; /* and use canonical name instead */ 1794 } 1795 if (req->id1domain == NULL) 1796 req->id1domain = domain; 1797 if (req->id1.idmap_id_u.sid.prefix == NULL) { 1798 req->id1.idmap_id_u.sid.prefix = sidprefix; 1799 req->id1.idmap_id_u.sid.rid = rid; 1800 } 1801 return (retcode); 1802 } 1803 1804 /* 1805 * Batch AD lookups 1806 */ 1807 idmap_retcode 1808 ad_lookup_batch(lookup_state_t *state, idmap_mapping_batch *batch, 1809 idmap_ids_res *result) 1810 { 1811 idmap_retcode retcode; 1812 int i, add, type, is_wuser, is_user; 1813 int retries = 0, eunixtype; 1814 char **unixname; 1815 idmap_mapping *req; 1816 idmap_id_res *res; 1817 idmap_query_state_t *qs = NULL; 1818 idmap_how *how; 1819 char **dn, **attr, **value; 1820 1821 /* 1822 * Since req->id2.idtype is unused, we will use it here 1823 * to retrieve the value of sid_type. But it needs to be 1824 * reset to IDMAP_NONE before we return to prevent xdr 1825 * from mis-interpreting req->id2 when it tries to free 1826 * the input argument. Other option is to allocate an 1827 * array of integers and use it instead for the batched 1828 * call. But why un-necessarily allocate memory. That may 1829 * be an option if req->id2.idtype cannot be re-used in 1830 * future. 1831 */ 1832 1833 if (state->ad_nqueries == 0) 1834 return (IDMAP_SUCCESS); 1835 1836 for (i = 0; i < batch->idmap_mapping_batch_len; i++) { 1837 req = &batch->idmap_mapping_batch_val[i]; 1838 res = &result->ids.ids_val[i]; 1839 1840 /* Skip if not marked for AD lookup or already in error. */ 1841 if (!(req->direction & _IDMAP_F_LOOKUP_AD) || 1842 res->retcode != IDMAP_SUCCESS) 1843 continue; 1844 1845 /* Init status */ 1846 res->retcode = IDMAP_ERR_RETRIABLE_NET_ERR; 1847 } 1848 1849 retry: 1850 RDLOCK_CONFIG(); 1851 retcode = idmap_lookup_batch_start(_idmapdstate.ad, state->ad_nqueries, 1852 &qs); 1853 UNLOCK_CONFIG(); 1854 if (retcode != IDMAP_SUCCESS) { 1855 if (retcode == IDMAP_ERR_RETRIABLE_NET_ERR && 1856 retries++ < ADUTILS_DEF_NUM_RETRIES) 1857 goto retry; 1858 degrade_svc(1, "failed to create batch for AD lookup"); 1859 goto out; 1860 } 1861 1862 restore_svc(); 1863 1864 idmap_lookup_batch_set_unixattr(qs, state->ad_unixuser_attr, 1865 state->ad_unixgroup_attr); 1866 1867 for (i = 0, add = 0; i < batch->idmap_mapping_batch_len; i++) { 1868 req = &batch->idmap_mapping_batch_val[i]; 1869 res = &result->ids.ids_val[i]; 1870 how = &res->info.how; 1871 1872 retcode = IDMAP_SUCCESS; 1873 req->id2.idtype = IDMAP_NONE; 1874 1875 /* Skip if not marked for AD lookup */ 1876 if (!(req->direction & _IDMAP_F_LOOKUP_AD)) 1877 continue; 1878 1879 if (res->retcode != IDMAP_ERR_RETRIABLE_NET_ERR) 1880 continue; 1881 1882 if (IS_REQUEST_SID(*req, 1)) { 1883 1884 /* win2unix request: */ 1885 1886 unixname = dn = attr = value = NULL; 1887 eunixtype = _IDMAP_T_UNDEF; 1888 if (req->id2name == NULL) { 1889 if (res->id.idtype == IDMAP_UID && 1890 AD_OR_MIXED(state->nm_siduid)) { 1891 eunixtype = _IDMAP_T_USER; 1892 unixname = &req->id2name; 1893 } else if (res->id.idtype == IDMAP_GID && 1894 AD_OR_MIXED(state->nm_sidgid)) { 1895 eunixtype = _IDMAP_T_GROUP; 1896 unixname = &req->id2name; 1897 } else if (AD_OR_MIXED(state->nm_siduid) || 1898 AD_OR_MIXED(state->nm_sidgid)) { 1899 unixname = &req->id2name; 1900 } 1901 } 1902 add = 1; 1903 if (unixname != NULL) { 1904 /* 1905 * Get how info for DS-based name 1906 * mapping only if AD or MIXED 1907 * mode is enabled. 1908 */ 1909 idmap_info_free(&res->info); 1910 res->info.src = IDMAP_MAP_SRC_NEW; 1911 how->map_type = IDMAP_MAP_TYPE_DS_AD; 1912 dn = &how->idmap_how_u.ad.dn; 1913 attr = &how->idmap_how_u.ad.attr; 1914 value = &how->idmap_how_u.ad.value; 1915 } 1916 if (req->id1.idmap_id_u.sid.prefix != NULL) { 1917 /* Lookup AD by SID */ 1918 retcode = idmap_sid2name_batch_add1( 1919 qs, req->id1.idmap_id_u.sid.prefix, 1920 &req->id1.idmap_id_u.sid.rid, eunixtype, 1921 dn, attr, value, 1922 (req->id1name == NULL) ? 1923 &req->id1name : NULL, 1924 (req->id1domain == NULL) ? 1925 &req->id1domain : NULL, 1926 (int *)&req->id2.idtype, unixname, 1927 &res->retcode); 1928 } else { 1929 /* Lookup AD by winname */ 1930 assert(req->id1name != NULL); 1931 retcode = idmap_name2sid_batch_add1( 1932 qs, req->id1name, req->id1domain, 1933 eunixtype, 1934 dn, attr, value, 1935 &req->id1name, 1936 &req->id1.idmap_id_u.sid.prefix, 1937 &req->id1.idmap_id_u.sid.rid, 1938 (int *)&req->id2.idtype, unixname, 1939 &res->retcode); 1940 } 1941 1942 } else if (IS_REQUEST_UID(*req) || IS_REQUEST_GID(*req)) { 1943 1944 /* unix2win request: */ 1945 1946 if (res->id.idmap_id_u.sid.prefix != NULL && 1947 req->id2name != NULL) { 1948 /* Already have SID and winname -- done */ 1949 res->retcode = IDMAP_SUCCESS; 1950 continue; 1951 } 1952 1953 if (res->id.idmap_id_u.sid.prefix != NULL) { 1954 /* 1955 * SID but no winname -- lookup AD by 1956 * SID to get winname. 1957 * how info is not needed here because 1958 * we are not retrieving unixname from 1959 * AD. 1960 */ 1961 add = 1; 1962 retcode = idmap_sid2name_batch_add1( 1963 qs, res->id.idmap_id_u.sid.prefix, 1964 &res->id.idmap_id_u.sid.rid, 1965 _IDMAP_T_UNDEF, 1966 NULL, NULL, NULL, 1967 &req->id2name, 1968 &req->id2domain, (int *)&req->id2.idtype, 1969 NULL, &res->retcode); 1970 } else if (req->id2name != NULL) { 1971 /* 1972 * winname but no SID -- lookup AD by 1973 * winname to get SID. 1974 * how info is not needed here because 1975 * we are not retrieving unixname from 1976 * AD. 1977 */ 1978 add = 1; 1979 retcode = idmap_name2sid_batch_add1( 1980 qs, req->id2name, req->id2domain, 1981 _IDMAP_T_UNDEF, 1982 NULL, NULL, NULL, NULL, 1983 &res->id.idmap_id_u.sid.prefix, 1984 &res->id.idmap_id_u.sid.rid, 1985 (int *)&req->id2.idtype, NULL, 1986 &res->retcode); 1987 } else if (req->id1name != NULL) { 1988 /* 1989 * No SID and no winname but we've unixname -- 1990 * lookup AD by unixname to get SID. 1991 */ 1992 is_user = (IS_REQUEST_UID(*req)) ? 1 : 0; 1993 if (res->id.idtype == IDMAP_USID) 1994 is_wuser = 1; 1995 else if (res->id.idtype == IDMAP_GSID) 1996 is_wuser = 0; 1997 else 1998 is_wuser = is_user; 1999 add = 1; 2000 idmap_info_free(&res->info); 2001 res->info.src = IDMAP_MAP_SRC_NEW; 2002 how->map_type = IDMAP_MAP_TYPE_DS_AD; 2003 retcode = idmap_unixname2sid_batch_add1( 2004 qs, req->id1name, is_user, is_wuser, 2005 &how->idmap_how_u.ad.dn, 2006 &how->idmap_how_u.ad.attr, 2007 &how->idmap_how_u.ad.value, 2008 &res->id.idmap_id_u.sid.prefix, 2009 &res->id.idmap_id_u.sid.rid, 2010 &req->id2name, &req->id2domain, 2011 (int *)&req->id2.idtype, &res->retcode); 2012 } 2013 } 2014 if (retcode != IDMAP_SUCCESS) { 2015 idmap_lookup_release_batch(&qs); 2016 break; 2017 } 2018 } 2019 2020 if (retcode == IDMAP_SUCCESS) { 2021 /* add keeps track if we added an entry to the batch */ 2022 if (add) 2023 retcode = idmap_lookup_batch_end(&qs); 2024 else 2025 idmap_lookup_release_batch(&qs); 2026 } 2027 2028 if (retcode == IDMAP_ERR_RETRIABLE_NET_ERR && 2029 retries++ < ADUTILS_DEF_NUM_RETRIES) 2030 goto retry; 2031 else if (retcode == IDMAP_ERR_RETRIABLE_NET_ERR) 2032 degrade_svc(1, "some AD lookups timed out repeatedly"); 2033 2034 if (retcode != IDMAP_SUCCESS) 2035 idmapdlog(LOG_NOTICE, "Failed to batch AD lookup requests"); 2036 2037 out: 2038 /* 2039 * This loop does the following: 2040 * 1. Reset _IDMAP_F_LOOKUP_AD flag from the request. 2041 * 2. Reset req->id2.idtype to IDMAP_NONE 2042 * 3. If batch_start or batch_add failed then set the status 2043 * of each request marked for AD lookup to that error. 2044 * 4. Evaluate the type of the AD object (i.e. user or group) and 2045 * update the idtype in request. 2046 */ 2047 for (i = 0; i < batch->idmap_mapping_batch_len; i++) { 2048 req = &batch->idmap_mapping_batch_val[i]; 2049 type = req->id2.idtype; 2050 req->id2.idtype = IDMAP_NONE; 2051 res = &result->ids.ids_val[i]; 2052 how = &res->info.how; 2053 if (!(req->direction & _IDMAP_F_LOOKUP_AD)) 2054 continue; 2055 2056 /* Reset AD lookup flag */ 2057 req->direction &= ~(_IDMAP_F_LOOKUP_AD); 2058 2059 /* 2060 * If batch_start or batch_add failed then set the status 2061 * of each request marked for AD lookup to that error. 2062 */ 2063 if (retcode != IDMAP_SUCCESS) { 2064 res->retcode = retcode; 2065 continue; 2066 } 2067 2068 if (!add) 2069 continue; 2070 2071 if (res->retcode == IDMAP_ERR_NOTFOUND) { 2072 /* Nothing found - remove the preset info */ 2073 idmap_info_free(&res->info); 2074 } 2075 2076 if (IS_REQUEST_SID(*req, 1)) { 2077 if (res->retcode != IDMAP_SUCCESS) 2078 continue; 2079 /* Evaluate result type */ 2080 switch (type) { 2081 case _IDMAP_T_USER: 2082 if (res->id.idtype == IDMAP_POSIXID) 2083 res->id.idtype = IDMAP_UID; 2084 req->id1.idtype = IDMAP_USID; 2085 break; 2086 case _IDMAP_T_GROUP: 2087 if (res->id.idtype == IDMAP_POSIXID) 2088 res->id.idtype = IDMAP_GID; 2089 req->id1.idtype = IDMAP_GSID; 2090 break; 2091 default: 2092 res->retcode = IDMAP_ERR_SID; 2093 break; 2094 } 2095 if (res->retcode == IDMAP_SUCCESS && 2096 req->id1name != NULL && 2097 (req->id2name == NULL || 2098 res->id.idmap_id_u.uid == SENTINEL_PID) && 2099 NLDAP_MODE(res->id.idtype, state)) { 2100 req->direction |= _IDMAP_F_LOOKUP_NLDAP; 2101 state->nldap_nqueries++; 2102 } 2103 } else if (IS_REQUEST_UID(*req) || IS_REQUEST_GID(*req)) { 2104 if (res->retcode != IDMAP_SUCCESS) { 2105 if ((!(IDMAP_FATAL_ERROR(res->retcode))) && 2106 res->id.idmap_id_u.sid.prefix == NULL && 2107 req->id2name == NULL && /* no winname */ 2108 req->id1name != NULL) /* unixname */ 2109 /* 2110 * If AD lookup by unixname failed 2111 * with non fatal error then clear 2112 * the error (i.e set res->retcode 2113 * to success). This allows the next 2114 * pass to process other mapping 2115 * mechanisms for this request. 2116 */ 2117 res->retcode = IDMAP_SUCCESS; 2118 continue; 2119 } 2120 /* Evaluate result type */ 2121 switch (type) { 2122 case _IDMAP_T_USER: 2123 if (res->id.idtype == IDMAP_SID) 2124 res->id.idtype = IDMAP_USID; 2125 break; 2126 case _IDMAP_T_GROUP: 2127 if (res->id.idtype == IDMAP_SID) 2128 res->id.idtype = IDMAP_GSID; 2129 break; 2130 default: 2131 res->retcode = IDMAP_ERR_SID; 2132 break; 2133 } 2134 } 2135 } 2136 2137 /* AD lookups done. Reset state->ad_nqueries and return */ 2138 state->ad_nqueries = 0; 2139 return (retcode); 2140 } 2141 2142 /* 2143 * Convention when processing win2unix requests: 2144 * 2145 * Windows identity: 2146 * req->id1name = 2147 * winname if given otherwise winname found will be placed 2148 * here. 2149 * req->id1domain = 2150 * windomain if given otherwise windomain found will be 2151 * placed here. 2152 * req->id1.idtype = 2153 * Either IDMAP_SID/USID/GSID. If this is IDMAP_SID then it'll 2154 * be set to IDMAP_USID/GSID depending upon whether the 2155 * given SID is user or group respectively. The user/group-ness 2156 * is determined either when looking up well-known SIDs table OR 2157 * if the SID is found in namecache OR by ad_lookup_one() OR by 2158 * ad_lookup_batch(). 2159 * req->id1..sid.[prefix, rid] = 2160 * SID if given otherwise SID found will be placed here. 2161 * 2162 * Unix identity: 2163 * req->id2name = 2164 * unixname found will be placed here. 2165 * req->id2domain = 2166 * NOT USED 2167 * res->id.idtype = 2168 * Target type initialized from req->id2.idtype. If 2169 * it is IDMAP_POSIXID then actual type (IDMAP_UID/GID) found 2170 * will be placed here. 2171 * res->id..[uid or gid] = 2172 * UID/GID found will be placed here. 2173 * 2174 * Others: 2175 * res->retcode = 2176 * Return status for this request will be placed here. 2177 * res->direction = 2178 * Direction found will be placed here. Direction 2179 * meaning whether the resultant mapping is valid 2180 * only from win2unix or bi-directional. 2181 * req->direction = 2182 * INTERNAL USE. Used by idmapd to set various 2183 * flags (_IDMAP_F_xxxx) to aid in processing 2184 * of the request. 2185 * req->id2.idtype = 2186 * INTERNAL USE. Initially this is the requested target 2187 * type and is used to initialize res->id.idtype. 2188 * ad_lookup_batch() uses this field temporarily to store 2189 * sid_type obtained by the batched AD lookups and after 2190 * use resets it to IDMAP_NONE to prevent xdr from 2191 * mis-interpreting the contents of req->id2. 2192 * req->id2..[uid or gid or sid] = 2193 * NOT USED 2194 */ 2195 2196 /* 2197 * This function does the following: 2198 * 1. Lookup well-known SIDs table. 2199 * 2. Check if the given SID is a local-SID and if so extract UID/GID from it. 2200 * 3. Lookup cache. 2201 * 4. Check if the client does not want new mapping to be allocated 2202 * in which case this pass is the final pass. 2203 * 5. Set AD lookup flag if it determines that the next stage needs 2204 * to do AD lookup. 2205 */ 2206 idmap_retcode 2207 sid2pid_first_pass(lookup_state_t *state, idmap_mapping *req, 2208 idmap_id_res *res) 2209 { 2210 idmap_retcode retcode; 2211 int wksid; 2212 2213 /* Initialize result */ 2214 res->id.idtype = req->id2.idtype; 2215 res->id.idmap_id_u.uid = SENTINEL_PID; 2216 res->direction = IDMAP_DIRECTION_UNDEF; 2217 wksid = 0; 2218 2219 if (EMPTY_STRING(req->id1.idmap_id_u.sid.prefix)) { 2220 if (req->id1name == NULL) { 2221 retcode = IDMAP_ERR_ARG; 2222 goto out; 2223 } 2224 /* sanitize sidprefix */ 2225 free(req->id1.idmap_id_u.sid.prefix); 2226 req->id1.idmap_id_u.sid.prefix = NULL; 2227 } 2228 2229 /* Lookup well-known SIDs table */ 2230 retcode = lookup_wksids_sid2pid(req, res, &wksid); 2231 if (retcode != IDMAP_ERR_NOTFOUND) 2232 goto out; 2233 2234 if (!wksid) { 2235 /* Check if this is a localsid */ 2236 retcode = lookup_localsid2pid(req, res); 2237 if (retcode != IDMAP_ERR_NOTFOUND) 2238 goto out; 2239 2240 if (ALLOW_WK_OR_LOCAL_SIDS_ONLY(req)) { 2241 retcode = IDMAP_ERR_NONEGENERATED; 2242 goto out; 2243 } 2244 } 2245 2246 /* Lookup cache */ 2247 retcode = lookup_cache_sid2pid(state->cache, req, res); 2248 if (retcode != IDMAP_ERR_NOTFOUND) 2249 goto out; 2250 2251 if (DO_NOT_ALLOC_NEW_ID_MAPPING(req) || AVOID_NAMESERVICE(req)) { 2252 retcode = IDMAP_ERR_NONEGENERATED; 2253 goto out; 2254 } 2255 2256 /* 2257 * Failed to find non-expired entry in cache. Next step is 2258 * to determine if this request needs to be batched for AD lookup. 2259 * 2260 * At this point we have either sid or winname or both. If we don't 2261 * have both then lookup name_cache for the sid or winname 2262 * whichever is missing. If not found then this request will be 2263 * batched for AD lookup. 2264 */ 2265 retcode = lookup_name_cache(state->cache, req, res); 2266 if (retcode != IDMAP_SUCCESS && retcode != IDMAP_ERR_NOTFOUND) 2267 goto out; 2268 2269 /* 2270 * Set the flag to indicate that we are not done yet so that 2271 * subsequent passes considers this request for name-based 2272 * mapping and ephemeral mapping. 2273 */ 2274 state->sid2pid_done = FALSE; 2275 req->direction |= _IDMAP_F_NOTDONE; 2276 2277 /* 2278 * Even if we have both sid and winname, we still may need to batch 2279 * this request for AD lookup if we don't have unixname and 2280 * directory-based name mapping (AD or mixed) is enabled. 2281 * We avoid AD lookup for well-known SIDs because they don't have 2282 * regular AD objects. 2283 */ 2284 if (retcode != IDMAP_SUCCESS || 2285 (!wksid && req->id2name == NULL && 2286 AD_OR_MIXED_MODE(res->id.idtype, state))) { 2287 retcode = IDMAP_SUCCESS; 2288 req->direction |= _IDMAP_F_LOOKUP_AD; 2289 state->ad_nqueries++; 2290 } else if (NLDAP_MODE(res->id.idtype, state)) { 2291 req->direction |= _IDMAP_F_LOOKUP_NLDAP; 2292 state->nldap_nqueries++; 2293 } 2294 2295 2296 out: 2297 res->retcode = idmap_stat4prot(retcode); 2298 /* 2299 * If we are done and there was an error then set fallback pid 2300 * in the result. 2301 */ 2302 if (ARE_WE_DONE(req->direction) && res->retcode != IDMAP_SUCCESS) 2303 res->id.idmap_id_u.uid = UID_NOBODY; 2304 return (retcode); 2305 } 2306 2307 /* 2308 * Generate SID using the following convention 2309 * <machine-sid-prefix>-<1000 + uid> 2310 * <machine-sid-prefix>-<2^31 + gid> 2311 */ 2312 static 2313 idmap_retcode 2314 generate_localsid(idmap_mapping *req, idmap_id_res *res, int is_user, 2315 int fallback) 2316 { 2317 free(res->id.idmap_id_u.sid.prefix); 2318 res->id.idmap_id_u.sid.prefix = NULL; 2319 2320 /* 2321 * Diagonal mapping for localSIDs not supported because of the 2322 * way we generate localSIDs. 2323 */ 2324 if (is_user && res->id.idtype == IDMAP_GSID) 2325 return (IDMAP_ERR_NOMAPPING); 2326 if (!is_user && res->id.idtype == IDMAP_USID) 2327 return (IDMAP_ERR_NOMAPPING); 2328 2329 /* Skip 1000 UIDs */ 2330 if (is_user && req->id1.idmap_id_u.uid > 2331 (INT32_MAX - LOCALRID_MIN)) 2332 return (IDMAP_ERR_NOMAPPING); 2333 2334 RDLOCK_CONFIG(); 2335 /* 2336 * machine_sid is never NULL because if it is we won't be here. 2337 * No need to assert because stdrup(NULL) will core anyways. 2338 */ 2339 res->id.idmap_id_u.sid.prefix = 2340 strdup(_idmapdstate.cfg->pgcfg.machine_sid); 2341 if (res->id.idmap_id_u.sid.prefix == NULL) { 2342 UNLOCK_CONFIG(); 2343 idmapdlog(LOG_ERR, "Out of memory"); 2344 return (IDMAP_ERR_MEMORY); 2345 } 2346 UNLOCK_CONFIG(); 2347 res->id.idmap_id_u.sid.rid = 2348 (is_user) ? req->id1.idmap_id_u.uid + LOCALRID_MIN : 2349 req->id1.idmap_id_u.gid + INT32_MAX + 1; 2350 res->direction = IDMAP_DIRECTION_BI; 2351 if (res->id.idtype == IDMAP_SID) 2352 res->id.idtype = is_user ? IDMAP_USID : IDMAP_GSID; 2353 2354 if (!fallback && req->flag & IDMAP_REQ_FLG_MAPPING_INFO) { 2355 res->info.how.map_type = IDMAP_MAP_TYPE_LOCAL_SID; 2356 res->info.src = IDMAP_MAP_SRC_ALGORITHMIC; 2357 } 2358 2359 /* 2360 * Don't update name_cache because local sids don't have 2361 * valid windows names. 2362 */ 2363 req->direction |= _IDMAP_F_DONT_UPDATE_NAMECACHE; 2364 return (IDMAP_SUCCESS); 2365 } 2366 2367 static 2368 idmap_retcode 2369 lookup_localsid2pid(idmap_mapping *req, idmap_id_res *res) 2370 { 2371 char *sidprefix; 2372 uint32_t rid; 2373 int s; 2374 2375 /* 2376 * If the sidprefix == localsid then UID = last RID - 1000 or 2377 * GID = last RID - 2^31. 2378 */ 2379 if ((sidprefix = req->id1.idmap_id_u.sid.prefix) == NULL) 2380 /* This means we are looking up by winname */ 2381 return (IDMAP_ERR_NOTFOUND); 2382 rid = req->id1.idmap_id_u.sid.rid; 2383 2384 RDLOCK_CONFIG(); 2385 s = (_idmapdstate.cfg->pgcfg.machine_sid) ? 2386 strcasecmp(sidprefix, _idmapdstate.cfg->pgcfg.machine_sid) : 1; 2387 UNLOCK_CONFIG(); 2388 2389 /* 2390 * If the given sidprefix does not match machine_sid then this is 2391 * not a local SID. 2392 */ 2393 if (s != 0) 2394 return (IDMAP_ERR_NOTFOUND); 2395 2396 switch (res->id.idtype) { 2397 case IDMAP_UID: 2398 if (rid > INT32_MAX || rid < LOCALRID_MIN) 2399 return (IDMAP_ERR_ARG); 2400 res->id.idmap_id_u.uid = rid - LOCALRID_MIN; 2401 break; 2402 case IDMAP_GID: 2403 if (rid <= INT32_MAX) 2404 return (IDMAP_ERR_ARG); 2405 res->id.idmap_id_u.gid = rid - INT32_MAX - 1; 2406 break; 2407 case IDMAP_POSIXID: 2408 if (rid > INT32_MAX) { 2409 res->id.idmap_id_u.gid = rid - INT32_MAX - 1; 2410 res->id.idtype = IDMAP_GID; 2411 } else if (rid < LOCALRID_MIN) { 2412 return (IDMAP_ERR_ARG); 2413 } else { 2414 res->id.idmap_id_u.uid = rid - LOCALRID_MIN; 2415 res->id.idtype = IDMAP_UID; 2416 } 2417 break; 2418 default: 2419 return (IDMAP_ERR_NOTSUPPORTED); 2420 } 2421 if (req->flag & IDMAP_REQ_FLG_MAPPING_INFO) { 2422 res->info.how.map_type = IDMAP_MAP_TYPE_LOCAL_SID; 2423 res->info.src = IDMAP_MAP_SRC_ALGORITHMIC; 2424 } 2425 return (IDMAP_SUCCESS); 2426 } 2427 2428 /* 2429 * Name service lookup by unixname to get pid 2430 */ 2431 static 2432 idmap_retcode 2433 ns_lookup_byname(const char *name, const char *lower_name, idmap_id *id) 2434 { 2435 struct passwd pwd, *pwdp; 2436 struct group grp, *grpp; 2437 char buf[1024]; 2438 int errnum; 2439 const char *me = "ns_lookup_byname"; 2440 2441 switch (id->idtype) { 2442 case IDMAP_UID: 2443 pwdp = getpwnam_r(name, &pwd, buf, sizeof (buf)); 2444 if (pwdp == NULL && errno == 0 && lower_name != NULL && 2445 name != lower_name && strcmp(name, lower_name) != 0) 2446 pwdp = getpwnam_r(lower_name, &pwd, buf, sizeof (buf)); 2447 if (pwdp == NULL) { 2448 errnum = errno; 2449 idmapdlog(LOG_WARNING, 2450 "%s: getpwnam_r(%s) failed (%s).", 2451 me, name, errnum ? strerror(errnum) : "not found"); 2452 if (errnum == 0) 2453 return (IDMAP_ERR_NOTFOUND); 2454 else 2455 return (IDMAP_ERR_INTERNAL); 2456 } 2457 id->idmap_id_u.uid = pwd.pw_uid; 2458 break; 2459 case IDMAP_GID: 2460 grpp = getgrnam_r(name, &grp, buf, sizeof (buf)); 2461 if (grpp == NULL && errno == 0 && lower_name != NULL && 2462 name != lower_name && strcmp(name, lower_name) != 0) 2463 grpp = getgrnam_r(lower_name, &grp, buf, sizeof (buf)); 2464 if (grpp == NULL) { 2465 errnum = errno; 2466 idmapdlog(LOG_WARNING, 2467 "%s: getgrnam_r(%s) failed (%s).", 2468 me, name, errnum ? strerror(errnum) : "not found"); 2469 if (errnum == 0) 2470 return (IDMAP_ERR_NOTFOUND); 2471 else 2472 return (IDMAP_ERR_INTERNAL); 2473 } 2474 id->idmap_id_u.gid = grp.gr_gid; 2475 break; 2476 default: 2477 return (IDMAP_ERR_ARG); 2478 } 2479 return (IDMAP_SUCCESS); 2480 } 2481 2482 2483 /* 2484 * Name service lookup by pid to get unixname 2485 */ 2486 static 2487 idmap_retcode 2488 ns_lookup_bypid(uid_t pid, int is_user, char **unixname) 2489 { 2490 struct passwd pwd; 2491 struct group grp; 2492 char buf[1024]; 2493 int errnum; 2494 const char *me = "ns_lookup_bypid"; 2495 2496 if (is_user) { 2497 errno = 0; 2498 if (getpwuid_r(pid, &pwd, buf, sizeof (buf)) == NULL) { 2499 errnum = errno; 2500 idmapdlog(LOG_WARNING, 2501 "%s: getpwuid_r(%u) failed (%s).", 2502 me, pid, errnum ? strerror(errnum) : "not found"); 2503 if (errnum == 0) 2504 return (IDMAP_ERR_NOTFOUND); 2505 else 2506 return (IDMAP_ERR_INTERNAL); 2507 } 2508 *unixname = strdup(pwd.pw_name); 2509 } else { 2510 errno = 0; 2511 if (getgrgid_r(pid, &grp, buf, sizeof (buf)) == NULL) { 2512 errnum = errno; 2513 idmapdlog(LOG_WARNING, 2514 "%s: getgrgid_r(%u) failed (%s).", 2515 me, pid, errnum ? strerror(errnum) : "not found"); 2516 if (errnum == 0) 2517 return (IDMAP_ERR_NOTFOUND); 2518 else 2519 return (IDMAP_ERR_INTERNAL); 2520 } 2521 *unixname = strdup(grp.gr_name); 2522 } 2523 if (*unixname == NULL) 2524 return (IDMAP_ERR_MEMORY); 2525 return (IDMAP_SUCCESS); 2526 } 2527 2528 /* 2529 * Name-based mapping 2530 * 2531 * Case 1: If no rule matches do ephemeral 2532 * 2533 * Case 2: If rule matches and unixname is "" then return no mapping. 2534 * 2535 * Case 3: If rule matches and unixname is specified then lookup name 2536 * service using the unixname. If unixname not found then return no mapping. 2537 * 2538 * Case 4: If rule matches and unixname is * then lookup name service 2539 * using winname as the unixname. If unixname not found then process 2540 * other rules using the lookup order. If no other rule matches then do 2541 * ephemeral. Otherwise, based on the matched rule do Case 2 or 3 or 4. 2542 * This allows us to specify a fallback unixname per _domain_ or no mapping 2543 * instead of the default behaviour of doing ephemeral mapping. 2544 * 2545 * Example 1: 2546 * *@sfbay == * 2547 * If looking up windows users foo@sfbay and foo does not exists in 2548 * the name service then foo@sfbay will be mapped to an ephemeral id. 2549 * 2550 * Example 2: 2551 * *@sfbay == * 2552 * *@sfbay => guest 2553 * If looking up windows users foo@sfbay and foo does not exists in 2554 * the name service then foo@sfbay will be mapped to guest. 2555 * 2556 * Example 3: 2557 * *@sfbay == * 2558 * *@sfbay => "" 2559 * If looking up windows users foo@sfbay and foo does not exists in 2560 * the name service then we will return no mapping for foo@sfbay. 2561 * 2562 */ 2563 static 2564 idmap_retcode 2565 name_based_mapping_sid2pid(lookup_state_t *state, 2566 idmap_mapping *req, idmap_id_res *res) 2567 { 2568 const char *unixname, *windomain; 2569 char *sql = NULL, *errmsg = NULL, *lower_winname = NULL; 2570 idmap_retcode retcode; 2571 char *end, *lower_unixname, *winname; 2572 const char **values; 2573 sqlite_vm *vm = NULL; 2574 int ncol, r, i, is_user, is_wuser; 2575 idmap_namerule *rule = &res->info.how.idmap_how_u.rule; 2576 int direction; 2577 const char *me = "name_based_mapping_sid2pid"; 2578 2579 assert(req->id1name != NULL); /* We have winname */ 2580 assert(req->id2name == NULL); /* We don't have unixname */ 2581 2582 winname = req->id1name; 2583 windomain = req->id1domain; 2584 2585 switch (req->id1.idtype) { 2586 case IDMAP_USID: 2587 is_wuser = 1; 2588 break; 2589 case IDMAP_GSID: 2590 is_wuser = 0; 2591 break; 2592 default: 2593 idmapdlog(LOG_ERR, "%s: Unable to determine if the " 2594 "given Windows id is user or group.", me); 2595 return (IDMAP_ERR_INTERNAL); 2596 } 2597 2598 switch (res->id.idtype) { 2599 case IDMAP_UID: 2600 is_user = 1; 2601 break; 2602 case IDMAP_GID: 2603 is_user = 0; 2604 break; 2605 case IDMAP_POSIXID: 2606 is_user = is_wuser; 2607 res->id.idtype = is_user ? IDMAP_UID : IDMAP_GID; 2608 break; 2609 } 2610 2611 i = 0; 2612 if (windomain == NULL) 2613 windomain = ""; 2614 else if (state->defdom != NULL && 2615 strcasecmp(state->defdom, windomain) == 0) 2616 i = 1; 2617 2618 if ((lower_winname = tolower_u8(winname)) == NULL) 2619 lower_winname = winname; /* hope for the best */ 2620 sql = sqlite_mprintf( 2621 "SELECT unixname, u2w_order, winname_display, windomain, is_nt4 " 2622 "FROM namerules WHERE " 2623 "w2u_order > 0 AND is_user = %d AND is_wuser = %d AND " 2624 "(winname = %Q OR winname = '*') AND " 2625 "(windomain = %Q OR windomain = '*' %s) " 2626 "ORDER BY w2u_order ASC;", 2627 is_user, is_wuser, lower_winname, windomain, 2628 i ? "OR windomain ISNULL OR windomain = ''" : ""); 2629 if (sql == NULL) { 2630 idmapdlog(LOG_ERR, "Out of memory"); 2631 retcode = IDMAP_ERR_MEMORY; 2632 goto out; 2633 } 2634 2635 if (sqlite_compile(state->db, sql, NULL, &vm, &errmsg) != SQLITE_OK) { 2636 retcode = IDMAP_ERR_INTERNAL; 2637 idmapdlog(LOG_ERR, "%s: database error (%s)", me, 2638 CHECK_NULL(errmsg)); 2639 sqlite_freemem(errmsg); 2640 goto out; 2641 } 2642 2643 for (;;) { 2644 r = sqlite_step(vm, &ncol, &values, NULL); 2645 assert(r != SQLITE_LOCKED && r != SQLITE_BUSY); 2646 2647 if (r == SQLITE_ROW) { 2648 if (ncol < 5) { 2649 retcode = IDMAP_ERR_INTERNAL; 2650 goto out; 2651 } 2652 if (values[0] == NULL) { 2653 retcode = IDMAP_ERR_INTERNAL; 2654 goto out; 2655 } 2656 2657 if (values[1] != NULL) 2658 direction = 2659 (strtol(values[1], &end, 10) == 0)? 2660 IDMAP_DIRECTION_W2U:IDMAP_DIRECTION_BI; 2661 else 2662 direction = IDMAP_DIRECTION_W2U; 2663 2664 if (EMPTY_NAME(values[0])) { 2665 idmap_namerule_set(rule, values[3], values[2], 2666 values[0], is_wuser, is_user, 2667 strtol(values[4], &end, 10), 2668 direction); 2669 retcode = IDMAP_ERR_NOMAPPING; 2670 goto out; 2671 } 2672 2673 if (values[0][0] == '*') { 2674 unixname = winname; 2675 lower_unixname = lower_winname; 2676 } else { 2677 unixname = values[0]; 2678 lower_unixname = NULL; 2679 } 2680 2681 retcode = ns_lookup_byname(unixname, lower_unixname, 2682 &res->id); 2683 if (retcode == IDMAP_ERR_NOTFOUND) { 2684 if (values[0][0] == '*') 2685 /* Case 4 */ 2686 continue; 2687 else { 2688 /* Case 3 */ 2689 idmap_namerule_set(rule, values[3], 2690 values[2], values[0], is_wuser, 2691 is_user, 2692 strtol(values[4], &end, 10), 2693 direction); 2694 retcode = IDMAP_ERR_NOMAPPING; 2695 } 2696 } 2697 goto out; 2698 } else if (r == SQLITE_DONE) { 2699 retcode = IDMAP_ERR_NOTFOUND; 2700 goto out; 2701 } else { 2702 (void) sqlite_finalize(vm, &errmsg); 2703 vm = NULL; 2704 idmapdlog(LOG_ERR, "%s: database error (%s)", me, 2705 CHECK_NULL(errmsg)); 2706 sqlite_freemem(errmsg); 2707 retcode = IDMAP_ERR_INTERNAL; 2708 goto out; 2709 } 2710 } 2711 2712 out: 2713 if (sql != NULL) 2714 sqlite_freemem(sql); 2715 res->info.how.map_type = IDMAP_MAP_TYPE_RULE_BASED; 2716 if (retcode == IDMAP_SUCCESS) { 2717 if (values[1] != NULL) 2718 res->direction = 2719 (strtol(values[1], &end, 10) == 0)? 2720 IDMAP_DIRECTION_W2U:IDMAP_DIRECTION_BI; 2721 else 2722 res->direction = IDMAP_DIRECTION_W2U; 2723 2724 req->id2name = strdup(unixname); 2725 if (req->id2name == NULL) { 2726 retcode = IDMAP_ERR_MEMORY; 2727 } 2728 } 2729 2730 if (retcode == IDMAP_SUCCESS) { 2731 idmap_namerule_set(rule, values[3], values[2], 2732 values[0], is_wuser, is_user, strtol(values[4], &end, 10), 2733 res->direction); 2734 res->info.src = IDMAP_MAP_SRC_NEW; 2735 } 2736 2737 if (lower_winname != NULL && lower_winname != winname) 2738 free(lower_winname); 2739 if (vm != NULL) 2740 (void) sqlite_finalize(vm, NULL); 2741 return (retcode); 2742 } 2743 2744 static 2745 int 2746 get_next_eph_uid(uid_t *next_uid) 2747 { 2748 uid_t uid; 2749 gid_t gid; 2750 int err; 2751 2752 *next_uid = (uid_t)-1; 2753 uid = _idmapdstate.next_uid++; 2754 if (uid >= _idmapdstate.limit_uid) { 2755 if ((err = allocids(0, 8192, &uid, 0, &gid)) != 0) 2756 return (err); 2757 2758 _idmapdstate.limit_uid = uid + 8192; 2759 _idmapdstate.next_uid = uid; 2760 } 2761 *next_uid = uid; 2762 2763 return (0); 2764 } 2765 2766 static 2767 int 2768 get_next_eph_gid(gid_t *next_gid) 2769 { 2770 uid_t uid; 2771 gid_t gid; 2772 int err; 2773 2774 *next_gid = (uid_t)-1; 2775 gid = _idmapdstate.next_gid++; 2776 if (gid >= _idmapdstate.limit_gid) { 2777 if ((err = allocids(0, 0, &uid, 8192, &gid)) != 0) 2778 return (err); 2779 2780 _idmapdstate.limit_gid = gid + 8192; 2781 _idmapdstate.next_gid = gid; 2782 } 2783 *next_gid = gid; 2784 2785 return (0); 2786 } 2787 2788 static 2789 int 2790 gethash(const char *str, uint32_t num, uint_t htsize) 2791 { 2792 uint_t hval, i, len; 2793 2794 if (str == NULL) 2795 return (0); 2796 for (len = strlen(str), hval = 0, i = 0; i < len; i++) { 2797 hval += str[i]; 2798 hval += (hval << 10); 2799 hval ^= (hval >> 6); 2800 } 2801 for (str = (const char *)&num, i = 0; i < sizeof (num); i++) { 2802 hval += str[i]; 2803 hval += (hval << 10); 2804 hval ^= (hval >> 6); 2805 } 2806 hval += (hval << 3); 2807 hval ^= (hval >> 11); 2808 hval += (hval << 15); 2809 return (hval % htsize); 2810 } 2811 2812 static 2813 int 2814 get_from_sid_history(lookup_state_t *state, const char *prefix, uint32_t rid, 2815 uid_t *pid) 2816 { 2817 uint_t next, key; 2818 uint_t htsize = state->sid_history_size; 2819 idmap_sid *sid; 2820 2821 next = gethash(prefix, rid, htsize); 2822 while (next != htsize) { 2823 key = state->sid_history[next].key; 2824 if (key == htsize) 2825 return (0); 2826 sid = &state->batch->idmap_mapping_batch_val[key].id1. 2827 idmap_id_u.sid; 2828 if (sid->rid == rid && strcmp(sid->prefix, prefix) == 0) { 2829 *pid = state->result->ids.ids_val[key].id. 2830 idmap_id_u.uid; 2831 return (1); 2832 } 2833 next = state->sid_history[next].next; 2834 } 2835 return (0); 2836 } 2837 2838 static 2839 void 2840 add_to_sid_history(lookup_state_t *state, const char *prefix, uint32_t rid) 2841 { 2842 uint_t hash, next; 2843 uint_t htsize = state->sid_history_size; 2844 2845 hash = next = gethash(prefix, rid, htsize); 2846 while (state->sid_history[next].key != htsize) { 2847 next++; 2848 next %= htsize; 2849 } 2850 state->sid_history[next].key = state->curpos; 2851 if (hash == next) 2852 return; 2853 state->sid_history[next].next = state->sid_history[hash].next; 2854 state->sid_history[hash].next = next; 2855 } 2856 2857 void 2858 cleanup_lookup_state(lookup_state_t *state) 2859 { 2860 free(state->sid_history); 2861 free(state->ad_unixuser_attr); 2862 free(state->ad_unixgroup_attr); 2863 free(state->nldap_winname_attr); 2864 free(state->defdom); 2865 } 2866 2867 /* ARGSUSED */ 2868 static 2869 idmap_retcode 2870 dynamic_ephemeral_mapping(lookup_state_t *state, 2871 idmap_mapping *req, idmap_id_res *res) 2872 { 2873 2874 uid_t next_pid; 2875 2876 res->direction = IDMAP_DIRECTION_BI; 2877 2878 if (IS_EPHEMERAL(res->id.idmap_id_u.uid)) { 2879 res->info.how.map_type = IDMAP_MAP_TYPE_EPHEMERAL; 2880 res->info.src = IDMAP_MAP_SRC_CACHE; 2881 return (IDMAP_SUCCESS); 2882 } 2883 2884 if (state->sid_history != NULL && 2885 get_from_sid_history(state, req->id1.idmap_id_u.sid.prefix, 2886 req->id1.idmap_id_u.sid.rid, &next_pid)) { 2887 res->id.idmap_id_u.uid = next_pid; 2888 res->info.how.map_type = IDMAP_MAP_TYPE_EPHEMERAL; 2889 res->info.src = IDMAP_MAP_SRC_NEW; 2890 return (IDMAP_SUCCESS); 2891 } 2892 2893 if (res->id.idtype == IDMAP_UID) { 2894 if (get_next_eph_uid(&next_pid) != 0) 2895 return (IDMAP_ERR_INTERNAL); 2896 res->id.idmap_id_u.uid = next_pid; 2897 } else { 2898 if (get_next_eph_gid(&next_pid) != 0) 2899 return (IDMAP_ERR_INTERNAL); 2900 res->id.idmap_id_u.gid = next_pid; 2901 } 2902 2903 res->info.how.map_type = IDMAP_MAP_TYPE_EPHEMERAL; 2904 res->info.src = IDMAP_MAP_SRC_NEW; 2905 if (state->sid_history != NULL) 2906 add_to_sid_history(state, req->id1.idmap_id_u.sid.prefix, 2907 req->id1.idmap_id_u.sid.rid); 2908 2909 return (IDMAP_SUCCESS); 2910 } 2911 2912 idmap_retcode 2913 sid2pid_second_pass(lookup_state_t *state, 2914 idmap_mapping *req, idmap_id_res *res) 2915 { 2916 idmap_retcode retcode; 2917 2918 /* Check if second pass is needed */ 2919 if (ARE_WE_DONE(req->direction)) 2920 return (res->retcode); 2921 2922 /* Get status from previous pass */ 2923 retcode = res->retcode; 2924 if (retcode != IDMAP_SUCCESS && state->eph_map_unres_sids && 2925 !EMPTY_STRING(req->id1.idmap_id_u.sid.prefix) && 2926 EMPTY_STRING(req->id1name)) { 2927 /* 2928 * We are asked to map an unresolvable SID to a UID or 2929 * GID, but, which? We'll treat all unresolvable SIDs 2930 * as users unless the caller specified which of a UID 2931 * or GID they want. 2932 */ 2933 if (req->id1.idtype == IDMAP_SID) 2934 req->id1.idtype = IDMAP_USID; 2935 if (res->id.idtype == IDMAP_POSIXID) 2936 res->id.idtype = IDMAP_UID; 2937 goto do_eph; 2938 } 2939 if (retcode != IDMAP_SUCCESS) 2940 goto out; 2941 2942 /* 2943 * If directory-based name mapping is enabled then the unixname 2944 * may already have been retrieved from the AD object (AD-mode or 2945 * mixed-mode) or from native LDAP object (nldap-mode) -- done. 2946 */ 2947 if (req->id2name != NULL) { 2948 assert(res->id.idtype != IDMAP_POSIXID); 2949 if (AD_MODE(res->id.idtype, state)) 2950 res->direction = IDMAP_DIRECTION_BI; 2951 else if (NLDAP_MODE(res->id.idtype, state)) 2952 res->direction = IDMAP_DIRECTION_BI; 2953 else if (MIXED_MODE(res->id.idtype, state)) 2954 res->direction = IDMAP_DIRECTION_W2U; 2955 2956 /* 2957 * Special case: (1) If the ad_unixuser_attr and 2958 * ad_unixgroup_attr uses the same attribute 2959 * name and (2) if this is a diagonal mapping 2960 * request and (3) the unixname has been retrieved 2961 * from the AD object -- then we ignore it and fallback 2962 * to name-based mapping rules and ephemeral mapping 2963 * 2964 * Example: 2965 * Properties: 2966 * config/ad_unixuser_attr = "unixname" 2967 * config/ad_unixgroup_attr = "unixname" 2968 * AD user object: 2969 * dn: cn=bob ... 2970 * objectclass: user 2971 * sam: bob 2972 * unixname: bob1234 2973 * AD group object: 2974 * dn: cn=winadmins ... 2975 * objectclass: group 2976 * sam: winadmins 2977 * unixname: unixadmins 2978 * 2979 * In this example whether "unixname" refers to a unixuser 2980 * or unixgroup depends upon the AD object. 2981 * 2982 * $idmap show -c winname:bob gid 2983 * AD lookup by "samAccountName=bob" for 2984 * "ad_unixgroup_attr (i.e unixname)" for directory-based 2985 * mapping would get "bob1234" which is not what we want. 2986 * Now why not getgrnam_r("bob1234") and use it if it 2987 * is indeed a unixgroup? That's because Unix can have 2988 * users and groups with the same name and we clearly 2989 * don't know the intention of the admin here. 2990 * Therefore we ignore this and fallback to name-based 2991 * mapping rules or ephemeral mapping. 2992 */ 2993 if ((AD_MODE(res->id.idtype, state) || 2994 MIXED_MODE(res->id.idtype, state)) && 2995 state->ad_unixuser_attr != NULL && 2996 state->ad_unixgroup_attr != NULL && 2997 strcasecmp(state->ad_unixuser_attr, 2998 state->ad_unixgroup_attr) == 0 && 2999 ((req->id1.idtype == IDMAP_USID && 3000 res->id.idtype == IDMAP_GID) || 3001 (req->id1.idtype == IDMAP_GSID && 3002 res->id.idtype == IDMAP_UID))) { 3003 free(req->id2name); 3004 req->id2name = NULL; 3005 res->id.idmap_id_u.uid = SENTINEL_PID; 3006 /* fallback */ 3007 } else { 3008 if (res->id.idmap_id_u.uid == SENTINEL_PID) 3009 retcode = ns_lookup_byname(req->id2name, 3010 NULL, &res->id); 3011 /* 3012 * If ns_lookup_byname() fails that means the 3013 * unixname (req->id2name), which was obtained 3014 * from the AD object by directory-based mapping, 3015 * is not a valid Unix user/group and therefore 3016 * we return the error to the client instead of 3017 * doing rule-based mapping or ephemeral mapping. 3018 * This way the client can detect the issue. 3019 */ 3020 goto out; 3021 } 3022 } 3023 3024 /* Free any mapping info from Directory based mapping */ 3025 if (res->info.how.map_type != IDMAP_MAP_TYPE_UNKNOWN) 3026 idmap_info_free(&res->info); 3027 3028 /* 3029 * If we don't have unixname then evaluate local name-based 3030 * mapping rules. 3031 */ 3032 retcode = name_based_mapping_sid2pid(state, req, res); 3033 if (retcode != IDMAP_ERR_NOTFOUND) 3034 goto out; 3035 3036 do_eph: 3037 /* If not found, do ephemeral mapping */ 3038 retcode = dynamic_ephemeral_mapping(state, req, res); 3039 3040 out: 3041 res->retcode = idmap_stat4prot(retcode); 3042 if (res->retcode != IDMAP_SUCCESS) { 3043 req->direction = _IDMAP_F_DONE; 3044 res->id.idmap_id_u.uid = UID_NOBODY; 3045 } 3046 if (!ARE_WE_DONE(req->direction)) 3047 state->sid2pid_done = FALSE; 3048 return (retcode); 3049 } 3050 3051 idmap_retcode 3052 update_cache_pid2sid(lookup_state_t *state, 3053 idmap_mapping *req, idmap_id_res *res) 3054 { 3055 char *sql = NULL; 3056 idmap_retcode retcode; 3057 char *map_dn = NULL; 3058 char *map_attr = NULL; 3059 char *map_value = NULL; 3060 char *map_windomain = NULL; 3061 char *map_winname = NULL; 3062 char *map_unixname = NULL; 3063 int map_is_nt4 = FALSE; 3064 3065 /* Check if we need to cache anything */ 3066 if (ARE_WE_DONE(req->direction)) 3067 return (IDMAP_SUCCESS); 3068 3069 /* We don't cache negative entries */ 3070 if (res->retcode != IDMAP_SUCCESS) 3071 return (IDMAP_SUCCESS); 3072 3073 assert(res->direction != IDMAP_DIRECTION_UNDEF); 3074 assert(req->id1.idmap_id_u.uid != SENTINEL_PID); 3075 assert(res->id.idtype != IDMAP_SID); 3076 3077 assert(res->info.how.map_type != IDMAP_MAP_TYPE_UNKNOWN); 3078 switch (res->info.how.map_type) { 3079 case IDMAP_MAP_TYPE_DS_AD: 3080 map_dn = res->info.how.idmap_how_u.ad.dn; 3081 map_attr = res->info.how.idmap_how_u.ad.attr; 3082 map_value = res->info.how.idmap_how_u.ad.value; 3083 break; 3084 3085 case IDMAP_MAP_TYPE_DS_NLDAP: 3086 map_dn = res->info.how.idmap_how_u.nldap.dn; 3087 map_attr = res->info.how.idmap_how_u.nldap.attr; 3088 map_value = res->info.how.idmap_how_u.nldap.value; 3089 break; 3090 3091 case IDMAP_MAP_TYPE_RULE_BASED: 3092 map_windomain = res->info.how.idmap_how_u.rule.windomain; 3093 map_winname = res->info.how.idmap_how_u.rule.winname; 3094 map_unixname = res->info.how.idmap_how_u.rule.unixname; 3095 map_is_nt4 = res->info.how.idmap_how_u.rule.is_nt4; 3096 break; 3097 3098 case IDMAP_MAP_TYPE_EPHEMERAL: 3099 break; 3100 3101 case IDMAP_MAP_TYPE_LOCAL_SID: 3102 break; 3103 3104 default: 3105 /* Dont cache other mapping types */ 3106 assert(FALSE); 3107 } 3108 3109 /* 3110 * Using NULL for u2w instead of 0 so that our trigger allows 3111 * the same pid to be the destination in multiple entries 3112 */ 3113 sql = sqlite_mprintf("INSERT OR REPLACE into idmap_cache " 3114 "(sidprefix, rid, windomain, canon_winname, pid, unixname, " 3115 "is_user, is_wuser, expiration, w2u, u2w, " 3116 "map_type, map_dn, map_attr, map_value, map_windomain, " 3117 "map_winname, map_unixname, map_is_nt4) " 3118 "VALUES(%Q, %u, %Q, %Q, %u, %Q, %d, %d, " 3119 "strftime('%%s','now') + 600, %q, 1, " 3120 "%d, %Q, %Q, %Q, %Q, %Q, %Q, %d); ", 3121 res->id.idmap_id_u.sid.prefix, res->id.idmap_id_u.sid.rid, 3122 req->id2domain, req->id2name, req->id1.idmap_id_u.uid, 3123 req->id1name, (req->id1.idtype == IDMAP_UID) ? 1 : 0, 3124 (res->id.idtype == IDMAP_USID) ? 1 : 0, 3125 (res->direction == 0) ? "1" : NULL, 3126 res->info.how.map_type, map_dn, map_attr, map_value, 3127 map_windomain, map_winname, map_unixname, map_is_nt4); 3128 3129 if (sql == NULL) { 3130 retcode = IDMAP_ERR_INTERNAL; 3131 idmapdlog(LOG_ERR, "Out of memory"); 3132 goto out; 3133 } 3134 3135 retcode = sql_exec_no_cb(state->cache, IDMAP_CACHENAME, sql); 3136 if (retcode != IDMAP_SUCCESS) 3137 goto out; 3138 3139 state->pid2sid_done = FALSE; 3140 sqlite_freemem(sql); 3141 sql = NULL; 3142 3143 /* Check if we need to update namecache */ 3144 if (req->direction & _IDMAP_F_DONT_UPDATE_NAMECACHE) 3145 goto out; 3146 3147 if (req->id2name == NULL) 3148 goto out; 3149 3150 sql = sqlite_mprintf("INSERT OR REPLACE into name_cache " 3151 "(sidprefix, rid, canon_name, domain, type, expiration) " 3152 "VALUES(%Q, %u, %Q, %Q, %d, strftime('%%s','now') + 3600); ", 3153 res->id.idmap_id_u.sid.prefix, res->id.idmap_id_u.sid.rid, 3154 req->id2name, req->id2domain, 3155 (res->id.idtype == IDMAP_USID) ? _IDMAP_T_USER : _IDMAP_T_GROUP); 3156 3157 if (sql == NULL) { 3158 retcode = IDMAP_ERR_INTERNAL; 3159 idmapdlog(LOG_ERR, "Out of memory"); 3160 goto out; 3161 } 3162 3163 retcode = sql_exec_no_cb(state->cache, IDMAP_CACHENAME, sql); 3164 3165 out: 3166 if (!(req->flag & IDMAP_REQ_FLG_MAPPING_INFO)) 3167 idmap_info_free(&res->info); 3168 if (sql != NULL) 3169 sqlite_freemem(sql); 3170 return (retcode); 3171 } 3172 3173 idmap_retcode 3174 update_cache_sid2pid(lookup_state_t *state, 3175 idmap_mapping *req, idmap_id_res *res) 3176 { 3177 char *sql = NULL; 3178 idmap_retcode retcode; 3179 int is_eph_user; 3180 char *map_dn = NULL; 3181 char *map_attr = NULL; 3182 char *map_value = NULL; 3183 char *map_windomain = NULL; 3184 char *map_winname = NULL; 3185 char *map_unixname = NULL; 3186 int map_is_nt4 = FALSE; 3187 3188 /* Check if we need to cache anything */ 3189 if (ARE_WE_DONE(req->direction)) 3190 return (IDMAP_SUCCESS); 3191 3192 /* We don't cache negative entries */ 3193 if (res->retcode != IDMAP_SUCCESS) 3194 return (IDMAP_SUCCESS); 3195 3196 if (req->direction & _IDMAP_F_EXP_EPH_UID) 3197 is_eph_user = 1; 3198 else if (req->direction & _IDMAP_F_EXP_EPH_GID) 3199 is_eph_user = 0; 3200 else 3201 is_eph_user = -1; 3202 3203 if (is_eph_user >= 0 && !IS_EPHEMERAL(res->id.idmap_id_u.uid)) { 3204 sql = sqlite_mprintf("UPDATE idmap_cache " 3205 "SET w2u = 0 WHERE " 3206 "sidprefix = %Q AND rid = %u AND w2u = 1 AND " 3207 "pid >= 2147483648 AND is_user = %d;", 3208 req->id1.idmap_id_u.sid.prefix, 3209 req->id1.idmap_id_u.sid.rid, 3210 is_eph_user); 3211 if (sql == NULL) { 3212 retcode = IDMAP_ERR_INTERNAL; 3213 idmapdlog(LOG_ERR, "Out of memory"); 3214 goto out; 3215 } 3216 3217 retcode = sql_exec_no_cb(state->cache, IDMAP_CACHENAME, sql); 3218 if (retcode != IDMAP_SUCCESS) 3219 goto out; 3220 3221 sqlite_freemem(sql); 3222 sql = NULL; 3223 } 3224 3225 assert(res->direction != IDMAP_DIRECTION_UNDEF); 3226 assert(res->id.idmap_id_u.uid != SENTINEL_PID); 3227 3228 switch (res->info.how.map_type) { 3229 case IDMAP_MAP_TYPE_DS_AD: 3230 map_dn = res->info.how.idmap_how_u.ad.dn; 3231 map_attr = res->info.how.idmap_how_u.ad.attr; 3232 map_value = res->info.how.idmap_how_u.ad.value; 3233 break; 3234 3235 case IDMAP_MAP_TYPE_DS_NLDAP: 3236 map_dn = res->info.how.idmap_how_u.nldap.dn; 3237 map_attr = res->info.how.idmap_how_u.ad.attr; 3238 map_value = res->info.how.idmap_how_u.nldap.value; 3239 break; 3240 3241 case IDMAP_MAP_TYPE_RULE_BASED: 3242 map_windomain = res->info.how.idmap_how_u.rule.windomain; 3243 map_winname = res->info.how.idmap_how_u.rule.winname; 3244 map_unixname = res->info.how.idmap_how_u.rule.unixname; 3245 map_is_nt4 = res->info.how.idmap_how_u.rule.is_nt4; 3246 break; 3247 3248 case IDMAP_MAP_TYPE_EPHEMERAL: 3249 break; 3250 3251 default: 3252 /* Dont cache other mapping types */ 3253 assert(FALSE); 3254 } 3255 3256 sql = sqlite_mprintf("INSERT OR REPLACE into idmap_cache " 3257 "(sidprefix, rid, windomain, canon_winname, pid, unixname, " 3258 "is_user, is_wuser, expiration, w2u, u2w, " 3259 "map_type, map_dn, map_attr, map_value, map_windomain, " 3260 "map_winname, map_unixname, map_is_nt4) " 3261 "VALUES(%Q, %u, %Q, %Q, %u, %Q, %d, %d, " 3262 "strftime('%%s','now') + 600, 1, %q, " 3263 "%d, %Q, %Q, %Q, %Q, %Q, %Q, %d);", 3264 req->id1.idmap_id_u.sid.prefix, req->id1.idmap_id_u.sid.rid, 3265 (req->id1domain != NULL) ? req->id1domain : "", req->id1name, 3266 res->id.idmap_id_u.uid, req->id2name, 3267 (res->id.idtype == IDMAP_UID) ? 1 : 0, 3268 (req->id1.idtype == IDMAP_USID) ? 1 : 0, 3269 (res->direction == 0) ? "1" : NULL, 3270 res->info.how.map_type, map_dn, map_attr, map_value, 3271 map_windomain, map_winname, map_unixname, map_is_nt4); 3272 3273 if (sql == NULL) { 3274 retcode = IDMAP_ERR_INTERNAL; 3275 idmapdlog(LOG_ERR, "Out of memory"); 3276 goto out; 3277 } 3278 3279 retcode = sql_exec_no_cb(state->cache, IDMAP_CACHENAME, sql); 3280 if (retcode != IDMAP_SUCCESS) 3281 goto out; 3282 3283 state->sid2pid_done = FALSE; 3284 sqlite_freemem(sql); 3285 sql = NULL; 3286 3287 /* Check if we need to update namecache */ 3288 if (req->direction & _IDMAP_F_DONT_UPDATE_NAMECACHE) 3289 goto out; 3290 3291 if (EMPTY_STRING(req->id1name)) 3292 goto out; 3293 3294 sql = sqlite_mprintf("INSERT OR REPLACE into name_cache " 3295 "(sidprefix, rid, canon_name, domain, type, expiration) " 3296 "VALUES(%Q, %u, %Q, %Q, %d, strftime('%%s','now') + 3600); ", 3297 req->id1.idmap_id_u.sid.prefix, req->id1.idmap_id_u.sid.rid, 3298 req->id1name, req->id1domain, 3299 (req->id1.idtype == IDMAP_USID) ? _IDMAP_T_USER : _IDMAP_T_GROUP); 3300 3301 if (sql == NULL) { 3302 retcode = IDMAP_ERR_INTERNAL; 3303 idmapdlog(LOG_ERR, "Out of memory"); 3304 goto out; 3305 } 3306 3307 retcode = sql_exec_no_cb(state->cache, IDMAP_CACHENAME, sql); 3308 3309 out: 3310 if (!(req->flag & IDMAP_REQ_FLG_MAPPING_INFO)) 3311 idmap_info_free(&res->info); 3312 3313 if (sql != NULL) 3314 sqlite_freemem(sql); 3315 return (retcode); 3316 } 3317 3318 static 3319 idmap_retcode 3320 lookup_cache_pid2sid(sqlite *cache, idmap_mapping *req, idmap_id_res *res, 3321 int is_user, int getname) 3322 { 3323 char *end; 3324 char *sql = NULL; 3325 const char **values; 3326 sqlite_vm *vm = NULL; 3327 int ncol; 3328 idmap_retcode retcode = IDMAP_SUCCESS; 3329 time_t curtime; 3330 idmap_id_type idtype; 3331 3332 /* Current time */ 3333 errno = 0; 3334 if ((curtime = time(NULL)) == (time_t)-1) { 3335 idmapdlog(LOG_ERR, "Failed to get current time (%s)", 3336 strerror(errno)); 3337 retcode = IDMAP_ERR_INTERNAL; 3338 goto out; 3339 } 3340 3341 /* SQL to lookup the cache by pid or by unixname */ 3342 if (req->id1.idmap_id_u.uid != SENTINEL_PID) { 3343 sql = sqlite_mprintf("SELECT sidprefix, rid, " 3344 "canon_winname, windomain, w2u, is_wuser, " 3345 "map_type, map_dn, map_attr, map_value, map_windomain, " 3346 "map_winname, map_unixname, map_is_nt4 " 3347 "FROM idmap_cache WHERE " 3348 "pid = %u AND u2w = 1 AND is_user = %d AND " 3349 "(pid >= 2147483648 OR " 3350 "(expiration = 0 OR expiration ISNULL OR " 3351 "expiration > %d));", 3352 req->id1.idmap_id_u.uid, is_user, curtime); 3353 } else if (req->id1name != NULL) { 3354 sql = sqlite_mprintf("SELECT sidprefix, rid, " 3355 "canon_winname, windomain, w2u, is_wuser, " 3356 "map_type, map_dn, map_attr, map_value, map_windomain, " 3357 "map_winname, map_unixname, map_is_nt4 " 3358 "FROM idmap_cache WHERE " 3359 "unixname = %Q AND u2w = 1 AND is_user = %d AND " 3360 "(pid >= 2147483648 OR " 3361 "(expiration = 0 OR expiration ISNULL OR " 3362 "expiration > %d));", 3363 req->id1name, is_user, curtime); 3364 } else { 3365 retcode = IDMAP_ERR_ARG; 3366 goto out; 3367 } 3368 3369 if (sql == NULL) { 3370 idmapdlog(LOG_ERR, "Out of memory"); 3371 retcode = IDMAP_ERR_MEMORY; 3372 goto out; 3373 } 3374 retcode = sql_compile_n_step_once( 3375 cache, sql, &vm, &ncol, 14, &values); 3376 sqlite_freemem(sql); 3377 3378 if (retcode == IDMAP_ERR_NOTFOUND) 3379 goto out; 3380 else if (retcode == IDMAP_SUCCESS) { 3381 /* sanity checks */ 3382 if (values[0] == NULL || values[1] == NULL) { 3383 retcode = IDMAP_ERR_CACHE; 3384 goto out; 3385 } 3386 3387 switch (res->id.idtype) { 3388 case IDMAP_SID: 3389 case IDMAP_USID: 3390 case IDMAP_GSID: 3391 idtype = strtol(values[5], &end, 10) == 1 3392 ? IDMAP_USID : IDMAP_GSID; 3393 3394 if (res->id.idtype == IDMAP_USID && 3395 idtype != IDMAP_USID) { 3396 retcode = IDMAP_ERR_NOTUSER; 3397 goto out; 3398 } else if (res->id.idtype == IDMAP_GSID && 3399 idtype != IDMAP_GSID) { 3400 retcode = IDMAP_ERR_NOTGROUP; 3401 goto out; 3402 } 3403 res->id.idtype = idtype; 3404 3405 res->id.idmap_id_u.sid.rid = 3406 strtoul(values[1], &end, 10); 3407 res->id.idmap_id_u.sid.prefix = strdup(values[0]); 3408 if (res->id.idmap_id_u.sid.prefix == NULL) { 3409 idmapdlog(LOG_ERR, "Out of memory"); 3410 retcode = IDMAP_ERR_MEMORY; 3411 goto out; 3412 } 3413 3414 if (values[4] != NULL) 3415 res->direction = 3416 (strtol(values[4], &end, 10) == 0)? 3417 IDMAP_DIRECTION_U2W:IDMAP_DIRECTION_BI; 3418 else 3419 res->direction = IDMAP_DIRECTION_U2W; 3420 3421 if (getname == 0 || values[2] == NULL) 3422 break; 3423 req->id2name = strdup(values[2]); 3424 if (req->id2name == NULL) { 3425 idmapdlog(LOG_ERR, "Out of memory"); 3426 retcode = IDMAP_ERR_MEMORY; 3427 goto out; 3428 } 3429 3430 if (values[3] == NULL) 3431 break; 3432 req->id2domain = strdup(values[3]); 3433 if (req->id2domain == NULL) { 3434 idmapdlog(LOG_ERR, "Out of memory"); 3435 retcode = IDMAP_ERR_MEMORY; 3436 goto out; 3437 } 3438 3439 break; 3440 default: 3441 retcode = IDMAP_ERR_NOTSUPPORTED; 3442 break; 3443 } 3444 if (req->flag & IDMAP_REQ_FLG_MAPPING_INFO) { 3445 res->info.src = IDMAP_MAP_SRC_CACHE; 3446 res->info.how.map_type = strtoul(values[6], &end, 10); 3447 switch (res->info.how.map_type) { 3448 case IDMAP_MAP_TYPE_DS_AD: 3449 res->info.how.idmap_how_u.ad.dn = 3450 strdup(values[7]); 3451 res->info.how.idmap_how_u.ad.attr = 3452 strdup(values[8]); 3453 res->info.how.idmap_how_u.ad.value = 3454 strdup(values[9]); 3455 break; 3456 3457 case IDMAP_MAP_TYPE_DS_NLDAP: 3458 res->info.how.idmap_how_u.nldap.dn = 3459 strdup(values[7]); 3460 res->info.how.idmap_how_u.nldap.attr = 3461 strdup(values[8]); 3462 res->info.how.idmap_how_u.nldap.value = 3463 strdup(values[9]); 3464 break; 3465 3466 case IDMAP_MAP_TYPE_RULE_BASED: 3467 res->info.how.idmap_how_u.rule.windomain = 3468 strdup(values[10]); 3469 res->info.how.idmap_how_u.rule.winname = 3470 strdup(values[11]); 3471 res->info.how.idmap_how_u.rule.unixname = 3472 strdup(values[12]); 3473 res->info.how.idmap_how_u.rule.is_nt4 = 3474 strtoul(values[13], &end, 10); 3475 res->info.how.idmap_how_u.rule.is_user = 3476 is_user; 3477 res->info.how.idmap_how_u.rule.is_wuser = 3478 strtol(values[5], &end, 10); 3479 break; 3480 3481 case IDMAP_MAP_TYPE_EPHEMERAL: 3482 break; 3483 3484 case IDMAP_MAP_TYPE_LOCAL_SID: 3485 break; 3486 3487 case IDMAP_MAP_TYPE_KNOWN_SID: 3488 break; 3489 3490 default: 3491 /* Unknow mapping type */ 3492 assert(FALSE); 3493 } 3494 } 3495 } 3496 3497 out: 3498 if (vm != NULL) 3499 (void) sqlite_finalize(vm, NULL); 3500 return (retcode); 3501 } 3502 3503 static 3504 idmap_retcode 3505 lookup_cache_name2sid(sqlite *cache, const char *name, const char *domain, 3506 char **canonname, char **sidprefix, idmap_rid_t *rid, int *type) 3507 { 3508 char *end, *lower_name; 3509 char *sql = NULL; 3510 const char **values; 3511 sqlite_vm *vm = NULL; 3512 int ncol; 3513 time_t curtime; 3514 idmap_retcode retcode = IDMAP_SUCCESS; 3515 3516 /* Get current time */ 3517 errno = 0; 3518 if ((curtime = time(NULL)) == (time_t)-1) { 3519 idmapdlog(LOG_ERR, "Failed to get current time (%s)", 3520 strerror(errno)); 3521 retcode = IDMAP_ERR_INTERNAL; 3522 goto out; 3523 } 3524 3525 /* SQL to lookup the cache */ 3526 if ((lower_name = tolower_u8(name)) == NULL) 3527 lower_name = (char *)name; 3528 sql = sqlite_mprintf("SELECT sidprefix, rid, type, canon_name " 3529 "FROM name_cache WHERE name = %Q AND domain = %Q AND " 3530 "(expiration = 0 OR expiration ISNULL OR " 3531 "expiration > %d);", lower_name, domain, curtime); 3532 if (lower_name != name) 3533 free(lower_name); 3534 if (sql == NULL) { 3535 idmapdlog(LOG_ERR, "Out of memory"); 3536 retcode = IDMAP_ERR_MEMORY; 3537 goto out; 3538 } 3539 retcode = sql_compile_n_step_once(cache, sql, &vm, &ncol, 4, &values); 3540 sqlite_freemem(sql); 3541 3542 if (retcode == IDMAP_SUCCESS) { 3543 if (type != NULL) { 3544 if (values[2] == NULL) { 3545 retcode = IDMAP_ERR_CACHE; 3546 goto out; 3547 } 3548 *type = strtol(values[2], &end, 10); 3549 } 3550 3551 if (values[0] == NULL || values[1] == NULL) { 3552 retcode = IDMAP_ERR_CACHE; 3553 goto out; 3554 } 3555 3556 if (canonname != NULL) { 3557 assert(values[3] != NULL); 3558 if ((*canonname = strdup(values[3])) == NULL) { 3559 idmapdlog(LOG_ERR, "Out of memory"); 3560 retcode = IDMAP_ERR_MEMORY; 3561 goto out; 3562 } 3563 } 3564 3565 if ((*sidprefix = strdup(values[0])) == NULL) { 3566 idmapdlog(LOG_ERR, "Out of memory"); 3567 retcode = IDMAP_ERR_MEMORY; 3568 if (canonname != NULL) { 3569 free(*canonname); 3570 *canonname = NULL; 3571 } 3572 goto out; 3573 } 3574 *rid = strtoul(values[1], &end, 10); 3575 } 3576 3577 out: 3578 if (vm != NULL) 3579 (void) sqlite_finalize(vm, NULL); 3580 return (retcode); 3581 } 3582 3583 static 3584 idmap_retcode 3585 ad_lookup_by_winname(lookup_state_t *state, 3586 const char *name, const char *domain, int eunixtype, 3587 char **dn, char **attr, char **value, char **canonname, 3588 char **sidprefix, idmap_rid_t *rid, int *wintype, 3589 char **unixname) 3590 { 3591 int retries = 0; 3592 idmap_query_state_t *qs = NULL; 3593 idmap_retcode rc, retcode; 3594 3595 retry: 3596 RDLOCK_CONFIG(); 3597 retcode = idmap_lookup_batch_start(_idmapdstate.ad, 1, &qs); 3598 UNLOCK_CONFIG(); 3599 if (retcode != IDMAP_SUCCESS) { 3600 if (retcode == IDMAP_ERR_RETRIABLE_NET_ERR && 3601 retries++ < ADUTILS_DEF_NUM_RETRIES) 3602 goto retry; 3603 degrade_svc(1, "failed to create request for AD lookup " 3604 "by winname"); 3605 return (retcode); 3606 } 3607 3608 restore_svc(); 3609 3610 if (state != NULL) 3611 idmap_lookup_batch_set_unixattr(qs, state->ad_unixuser_attr, 3612 state->ad_unixgroup_attr); 3613 3614 retcode = idmap_name2sid_batch_add1(qs, name, domain, eunixtype, 3615 dn, attr, value, canonname, sidprefix, rid, wintype, unixname, &rc); 3616 3617 if (retcode != IDMAP_SUCCESS) 3618 idmap_lookup_release_batch(&qs); 3619 else 3620 retcode = idmap_lookup_batch_end(&qs); 3621 3622 if (retcode == IDMAP_ERR_RETRIABLE_NET_ERR && 3623 retries++ < ADUTILS_DEF_NUM_RETRIES) 3624 goto retry; 3625 else if (retcode == IDMAP_ERR_RETRIABLE_NET_ERR) 3626 degrade_svc(1, "some AD lookups timed out repeatedly"); 3627 3628 if (retcode != IDMAP_SUCCESS) { 3629 idmapdlog(LOG_NOTICE, "AD lookup by winname failed"); 3630 return (retcode); 3631 } 3632 return (rc); 3633 } 3634 3635 idmap_retcode 3636 lookup_name2sid(sqlite *cache, const char *name, const char *domain, 3637 int *is_wuser, char **canonname, char **sidprefix, 3638 idmap_rid_t *rid, idmap_mapping *req, int local_only) 3639 { 3640 int type; 3641 idmap_retcode retcode; 3642 3643 *sidprefix = NULL; 3644 if (canonname != NULL) 3645 *canonname = NULL; 3646 3647 /* Lookup well-known SIDs table */ 3648 retcode = lookup_wksids_name2sid(name, canonname, sidprefix, rid, 3649 &type); 3650 if (retcode == IDMAP_SUCCESS) { 3651 req->direction |= _IDMAP_F_DONT_UPDATE_NAMECACHE; 3652 goto out; 3653 } else if (retcode != IDMAP_ERR_NOTFOUND) { 3654 return (retcode); 3655 } 3656 3657 /* Lookup cache */ 3658 retcode = lookup_cache_name2sid(cache, name, domain, canonname, 3659 sidprefix, rid, &type); 3660 if (retcode == IDMAP_SUCCESS) { 3661 req->direction |= _IDMAP_F_DONT_UPDATE_NAMECACHE; 3662 goto out; 3663 } else if (retcode != IDMAP_ERR_NOTFOUND) { 3664 return (retcode); 3665 } 3666 3667 /* 3668 * The caller may be using this function to determine if this 3669 * request needs to be marked for AD lookup or not 3670 * (i.e. _IDMAP_F_LOOKUP_AD) and therefore may not want this 3671 * function to AD lookup now. 3672 */ 3673 if (local_only) 3674 return (retcode); 3675 3676 /* Lookup AD */ 3677 retcode = ad_lookup_by_winname(NULL, name, domain, _IDMAP_T_UNDEF, 3678 NULL, NULL, NULL, canonname, sidprefix, rid, &type, NULL); 3679 if (retcode != IDMAP_SUCCESS) 3680 return (retcode); 3681 3682 out: 3683 /* 3684 * Entry found (cache or Windows lookup) 3685 * is_wuser is both input as well as output parameter 3686 */ 3687 if (*is_wuser == 1 && type != _IDMAP_T_USER) 3688 retcode = IDMAP_ERR_NOTUSER; 3689 else if (*is_wuser == 0 && type != _IDMAP_T_GROUP) 3690 retcode = IDMAP_ERR_NOTGROUP; 3691 else if (*is_wuser == -1) { 3692 /* Caller wants to know if its user or group */ 3693 if (type == _IDMAP_T_USER) 3694 *is_wuser = 1; 3695 else if (type == _IDMAP_T_GROUP) 3696 *is_wuser = 0; 3697 else 3698 retcode = IDMAP_ERR_SID; 3699 } 3700 3701 if (retcode != IDMAP_SUCCESS) { 3702 free(*sidprefix); 3703 *sidprefix = NULL; 3704 if (canonname != NULL) { 3705 free(*canonname); 3706 *canonname = NULL; 3707 } 3708 } 3709 return (retcode); 3710 } 3711 3712 static 3713 idmap_retcode 3714 name_based_mapping_pid2sid(lookup_state_t *state, const char *unixname, 3715 int is_user, idmap_mapping *req, idmap_id_res *res) 3716 { 3717 const char *winname, *windomain; 3718 char *canonname; 3719 char *sql = NULL, *errmsg = NULL; 3720 idmap_retcode retcode; 3721 char *end; 3722 const char **values; 3723 sqlite_vm *vm = NULL; 3724 int ncol, r; 3725 int is_wuser; 3726 const char *me = "name_based_mapping_pid2sid"; 3727 int non_wild_match = FALSE; 3728 idmap_namerule *rule = &res->info.how.idmap_how_u.rule; 3729 int direction; 3730 3731 assert(unixname != NULL); /* We have unixname */ 3732 assert(req->id2name == NULL); /* We don't have winname */ 3733 assert(res->id.idmap_id_u.sid.prefix == NULL); /* No SID either */ 3734 3735 sql = sqlite_mprintf( 3736 "SELECT winname_display, windomain, w2u_order, " 3737 "is_wuser, unixname, is_nt4 " 3738 "FROM namerules WHERE " 3739 "u2w_order > 0 AND is_user = %d AND " 3740 "(unixname = %Q OR unixname = '*') " 3741 "ORDER BY u2w_order ASC;", is_user, unixname); 3742 if (sql == NULL) { 3743 idmapdlog(LOG_ERR, "Out of memory"); 3744 retcode = IDMAP_ERR_MEMORY; 3745 goto out; 3746 } 3747 3748 if (sqlite_compile(state->db, sql, NULL, &vm, &errmsg) != SQLITE_OK) { 3749 retcode = IDMAP_ERR_INTERNAL; 3750 idmapdlog(LOG_ERR, "%s: database error (%s)", me, 3751 CHECK_NULL(errmsg)); 3752 sqlite_freemem(errmsg); 3753 goto out; 3754 } 3755 3756 for (;;) { 3757 r = sqlite_step(vm, &ncol, &values, NULL); 3758 assert(r != SQLITE_LOCKED && r != SQLITE_BUSY); 3759 if (r == SQLITE_ROW) { 3760 if (ncol < 6) { 3761 retcode = IDMAP_ERR_INTERNAL; 3762 goto out; 3763 } 3764 if (values[0] == NULL) { 3765 /* values [1] and [2] can be null */ 3766 retcode = IDMAP_ERR_INTERNAL; 3767 goto out; 3768 } 3769 3770 if (values[2] != NULL) 3771 direction = 3772 (strtol(values[2], &end, 10) == 0)? 3773 IDMAP_DIRECTION_U2W:IDMAP_DIRECTION_BI; 3774 else 3775 direction = IDMAP_DIRECTION_U2W; 3776 3777 if (EMPTY_NAME(values[0])) { 3778 idmap_namerule_set(rule, values[1], values[0], 3779 values[4], is_user, 3780 strtol(values[3], &end, 10), 3781 strtol(values[5], &end, 10), 3782 direction); 3783 retcode = IDMAP_ERR_NOMAPPING; 3784 goto out; 3785 } 3786 3787 if (values[0][0] == '*') { 3788 winname = unixname; 3789 if (non_wild_match) { 3790 /* 3791 * There were non-wildcard rules 3792 * where the Windows identity doesn't 3793 * exist. Return no mapping. 3794 */ 3795 retcode = IDMAP_ERR_NOMAPPING; 3796 goto out; 3797 } 3798 } else { 3799 /* Save first non-wild match rule */ 3800 if (!non_wild_match) { 3801 idmap_namerule_set(rule, values[1], 3802 values[0], values[4], 3803 is_user, 3804 strtol(values[3], &end, 10), 3805 strtol(values[5], &end, 10), 3806 direction); 3807 non_wild_match = TRUE; 3808 } 3809 winname = values[0]; 3810 } 3811 is_wuser = res->id.idtype == IDMAP_USID ? 1 3812 : res->id.idtype == IDMAP_GSID ? 0 3813 : -1; 3814 if (values[1] != NULL) 3815 windomain = values[1]; 3816 else if (state->defdom != NULL) 3817 windomain = state->defdom; 3818 else { 3819 idmapdlog(LOG_ERR, "%s: no domain", me); 3820 retcode = IDMAP_ERR_DOMAIN_NOTFOUND; 3821 goto out; 3822 } 3823 3824 retcode = lookup_name2sid(state->cache, 3825 winname, windomain, 3826 &is_wuser, &canonname, 3827 &res->id.idmap_id_u.sid.prefix, 3828 &res->id.idmap_id_u.sid.rid, req, 0); 3829 3830 if (retcode == IDMAP_ERR_NOTFOUND) { 3831 continue; 3832 } 3833 goto out; 3834 3835 } else if (r == SQLITE_DONE) { 3836 /* 3837 * If there were non-wildcard rules where 3838 * Windows identity doesn't exist 3839 * return no mapping. 3840 */ 3841 if (non_wild_match) 3842 retcode = IDMAP_ERR_NOMAPPING; 3843 else 3844 retcode = IDMAP_ERR_NOTFOUND; 3845 goto out; 3846 } else { 3847 (void) sqlite_finalize(vm, &errmsg); 3848 vm = NULL; 3849 idmapdlog(LOG_ERR, "%s: database error (%s)", me, 3850 CHECK_NULL(errmsg)); 3851 sqlite_freemem(errmsg); 3852 retcode = IDMAP_ERR_INTERNAL; 3853 goto out; 3854 } 3855 } 3856 3857 out: 3858 if (sql != NULL) 3859 sqlite_freemem(sql); 3860 res->info.how.map_type = IDMAP_MAP_TYPE_RULE_BASED; 3861 if (retcode == IDMAP_SUCCESS) { 3862 res->id.idtype = is_wuser ? IDMAP_USID : IDMAP_GSID; 3863 3864 if (values[2] != NULL) 3865 res->direction = 3866 (strtol(values[2], &end, 10) == 0)? 3867 IDMAP_DIRECTION_U2W:IDMAP_DIRECTION_BI; 3868 else 3869 res->direction = IDMAP_DIRECTION_U2W; 3870 3871 req->id2name = canonname; 3872 if (req->id2name != NULL) { 3873 req->id2domain = strdup(windomain); 3874 if (req->id2domain == NULL) 3875 retcode = IDMAP_ERR_MEMORY; 3876 } 3877 } 3878 3879 if (retcode == IDMAP_SUCCESS) { 3880 idmap_namerule_set(rule, values[1], values[0], values[4], 3881 is_user, strtol(values[3], &end, 10), 3882 strtol(values[5], &end, 10), 3883 rule->direction); 3884 res->info.src = IDMAP_MAP_SRC_NEW; 3885 } 3886 if (vm != NULL) 3887 (void) sqlite_finalize(vm, NULL); 3888 return (retcode); 3889 } 3890 3891 /* 3892 * Convention when processing unix2win requests: 3893 * 3894 * Unix identity: 3895 * req->id1name = 3896 * unixname if given otherwise unixname found will be placed 3897 * here. 3898 * req->id1domain = 3899 * NOT USED 3900 * req->id1.idtype = 3901 * Given type (IDMAP_UID or IDMAP_GID) 3902 * req->id1..[uid or gid] = 3903 * UID/GID if given otherwise UID/GID found will be placed here. 3904 * 3905 * Windows identity: 3906 * req->id2name = 3907 * winname found will be placed here. 3908 * req->id2domain = 3909 * windomain found will be placed here. 3910 * res->id.idtype = 3911 * Target type initialized from req->id2.idtype. If 3912 * it is IDMAP_SID then actual type (IDMAP_USID/GSID) found 3913 * will be placed here. 3914 * req->id..sid.[prefix, rid] = 3915 * SID found will be placed here. 3916 * 3917 * Others: 3918 * res->retcode = 3919 * Return status for this request will be placed here. 3920 * res->direction = 3921 * Direction found will be placed here. Direction 3922 * meaning whether the resultant mapping is valid 3923 * only from unix2win or bi-directional. 3924 * req->direction = 3925 * INTERNAL USE. Used by idmapd to set various 3926 * flags (_IDMAP_F_xxxx) to aid in processing 3927 * of the request. 3928 * req->id2.idtype = 3929 * INTERNAL USE. Initially this is the requested target 3930 * type and is used to initialize res->id.idtype. 3931 * ad_lookup_batch() uses this field temporarily to store 3932 * sid_type obtained by the batched AD lookups and after 3933 * use resets it to IDMAP_NONE to prevent xdr from 3934 * mis-interpreting the contents of req->id2. 3935 * req->id2..[uid or gid or sid] = 3936 * NOT USED 3937 */ 3938 3939 /* 3940 * This function does the following: 3941 * 1. Lookup well-known SIDs table. 3942 * 2. Lookup cache. 3943 * 3. Check if the client does not want new mapping to be allocated 3944 * in which case this pass is the final pass. 3945 * 4. Set AD/NLDAP lookup flags if it determines that the next stage needs 3946 * to do AD/NLDAP lookup. 3947 */ 3948 idmap_retcode 3949 pid2sid_first_pass(lookup_state_t *state, idmap_mapping *req, 3950 idmap_id_res *res, int is_user, int getname) 3951 { 3952 idmap_retcode retcode; 3953 bool_t gen_localsid_on_err = FALSE; 3954 3955 /* Initialize result */ 3956 res->id.idtype = req->id2.idtype; 3957 res->direction = IDMAP_DIRECTION_UNDEF; 3958 3959 if (req->id2.idmap_id_u.sid.prefix != NULL) { 3960 /* sanitize sidprefix */ 3961 free(req->id2.idmap_id_u.sid.prefix); 3962 req->id2.idmap_id_u.sid.prefix = NULL; 3963 } 3964 3965 /* Find pid */ 3966 if (req->id1.idmap_id_u.uid == SENTINEL_PID) { 3967 if (ns_lookup_byname(req->id1name, NULL, &req->id1) 3968 != IDMAP_SUCCESS) { 3969 retcode = IDMAP_ERR_NOMAPPING; 3970 goto out; 3971 } 3972 } 3973 3974 /* Lookup well-known SIDs table */ 3975 retcode = lookup_wksids_pid2sid(req, res, is_user); 3976 if (retcode != IDMAP_ERR_NOTFOUND) 3977 goto out; 3978 3979 /* Lookup cache */ 3980 retcode = lookup_cache_pid2sid(state->cache, req, res, is_user, 3981 getname); 3982 if (retcode != IDMAP_ERR_NOTFOUND) 3983 goto out; 3984 3985 /* Ephemeral ids cannot be allocated during pid2sid */ 3986 if (IS_EPHEMERAL(req->id1.idmap_id_u.uid)) { 3987 retcode = IDMAP_ERR_NOMAPPING; 3988 goto out; 3989 } 3990 3991 if (DO_NOT_ALLOC_NEW_ID_MAPPING(req)) { 3992 retcode = IDMAP_ERR_NONEGENERATED; 3993 goto out; 3994 } 3995 3996 if (AVOID_NAMESERVICE(req)) { 3997 gen_localsid_on_err = TRUE; 3998 retcode = IDMAP_ERR_NOMAPPING; 3999 goto out; 4000 } 4001 4002 /* Set flags for the next stage */ 4003 if (AD_MODE(req->id1.idtype, state)) { 4004 /* 4005 * If AD-based name mapping is enabled then the next stage 4006 * will need to lookup AD using unixname to get the 4007 * corresponding winname. 4008 */ 4009 if (req->id1name == NULL) { 4010 /* Get unixname if only pid is given. */ 4011 retcode = ns_lookup_bypid(req->id1.idmap_id_u.uid, 4012 is_user, &req->id1name); 4013 if (retcode != IDMAP_SUCCESS) { 4014 gen_localsid_on_err = TRUE; 4015 goto out; 4016 } 4017 } 4018 req->direction |= _IDMAP_F_LOOKUP_AD; 4019 state->ad_nqueries++; 4020 } else if (NLDAP_OR_MIXED_MODE(req->id1.idtype, state)) { 4021 /* 4022 * If native LDAP or mixed mode is enabled for name mapping 4023 * then the next stage will need to lookup native LDAP using 4024 * unixname/pid to get the corresponding winname. 4025 */ 4026 req->direction |= _IDMAP_F_LOOKUP_NLDAP; 4027 state->nldap_nqueries++; 4028 } 4029 4030 /* 4031 * Failed to find non-expired entry in cache. Set the flag to 4032 * indicate that we are not done yet. 4033 */ 4034 state->pid2sid_done = FALSE; 4035 req->direction |= _IDMAP_F_NOTDONE; 4036 retcode = IDMAP_SUCCESS; 4037 4038 out: 4039 res->retcode = idmap_stat4prot(retcode); 4040 if (ARE_WE_DONE(req->direction) && res->retcode != IDMAP_SUCCESS) 4041 if (gen_localsid_on_err == TRUE) 4042 (void) generate_localsid(req, res, is_user, TRUE); 4043 return (retcode); 4044 } 4045 4046 idmap_retcode 4047 pid2sid_second_pass(lookup_state_t *state, idmap_mapping *req, 4048 idmap_id_res *res, int is_user) 4049 { 4050 bool_t gen_localsid_on_err = TRUE; 4051 idmap_retcode retcode = IDMAP_SUCCESS; 4052 4053 /* Check if second pass is needed */ 4054 if (ARE_WE_DONE(req->direction)) 4055 return (res->retcode); 4056 4057 /* Get status from previous pass */ 4058 retcode = res->retcode; 4059 if (retcode != IDMAP_SUCCESS) 4060 goto out; 4061 4062 /* 4063 * If directory-based name mapping is enabled then the winname 4064 * may already have been retrieved from the AD object (AD-mode) 4065 * or from native LDAP object (nldap-mode or mixed-mode). 4066 * Note that if we have winname but no SID then it's an error 4067 * because this implies that the Native LDAP entry contains 4068 * winname which does not exist and it's better that we return 4069 * an error instead of doing rule-based mapping so that the user 4070 * can detect the issue and take appropriate action. 4071 */ 4072 if (req->id2name != NULL) { 4073 /* Return notfound if we've winname but no SID. */ 4074 if (res->id.idmap_id_u.sid.prefix == NULL) { 4075 retcode = IDMAP_ERR_NOTFOUND; 4076 goto out; 4077 } 4078 if (AD_MODE(req->id1.idtype, state)) 4079 res->direction = IDMAP_DIRECTION_BI; 4080 else if (NLDAP_MODE(req->id1.idtype, state)) 4081 res->direction = IDMAP_DIRECTION_BI; 4082 else if (MIXED_MODE(req->id1.idtype, state)) 4083 res->direction = IDMAP_DIRECTION_W2U; 4084 goto out; 4085 } else if (res->id.idmap_id_u.sid.prefix != NULL) { 4086 /* 4087 * We've SID but no winname. This is fine because 4088 * the caller may have only requested SID. 4089 */ 4090 goto out; 4091 } 4092 4093 /* Free any mapping info from Directory based mapping */ 4094 if (res->info.how.map_type != IDMAP_MAP_TYPE_UNKNOWN) 4095 idmap_info_free(&res->info); 4096 4097 if (req->id1name == NULL) { 4098 /* Get unixname from name service */ 4099 retcode = ns_lookup_bypid(req->id1.idmap_id_u.uid, is_user, 4100 &req->id1name); 4101 if (retcode != IDMAP_SUCCESS) 4102 goto out; 4103 } else if (req->id1.idmap_id_u.uid == SENTINEL_PID) { 4104 /* Get pid from name service */ 4105 retcode = ns_lookup_byname(req->id1name, NULL, &req->id1); 4106 if (retcode != IDMAP_SUCCESS) { 4107 gen_localsid_on_err = FALSE; 4108 goto out; 4109 } 4110 } 4111 4112 /* Use unixname to evaluate local name-based mapping rules */ 4113 retcode = name_based_mapping_pid2sid(state, req->id1name, is_user, 4114 req, res); 4115 if (retcode == IDMAP_ERR_NOTFOUND) { 4116 retcode = generate_localsid(req, res, is_user, FALSE); 4117 gen_localsid_on_err = FALSE; 4118 } 4119 4120 out: 4121 res->retcode = idmap_stat4prot(retcode); 4122 if (res->retcode != IDMAP_SUCCESS) { 4123 req->direction = _IDMAP_F_DONE; 4124 free(req->id2name); 4125 req->id2name = NULL; 4126 free(req->id2domain); 4127 req->id2domain = NULL; 4128 if (gen_localsid_on_err == TRUE) 4129 (void) generate_localsid(req, res, is_user, TRUE); 4130 else 4131 res->id.idtype = is_user ? IDMAP_USID : IDMAP_GSID; 4132 } 4133 if (!ARE_WE_DONE(req->direction)) 4134 state->pid2sid_done = FALSE; 4135 return (retcode); 4136 } 4137 4138 static 4139 int 4140 copy_mapping_request(idmap_mapping *mapping, idmap_mapping *request) 4141 { 4142 (void) memset(mapping, 0, sizeof (*mapping)); 4143 4144 mapping->flag = request->flag; 4145 mapping->direction = _IDMAP_F_DONE; 4146 mapping->id2.idtype = request->id2.idtype; 4147 4148 mapping->id1.idtype = request->id1.idtype; 4149 if (IS_REQUEST_SID(*request, 1)) { 4150 mapping->id1.idmap_id_u.sid.rid = 4151 request->id1.idmap_id_u.sid.rid; 4152 if (!EMPTY_STRING(request->id1.idmap_id_u.sid.prefix)) { 4153 mapping->id1.idmap_id_u.sid.prefix = 4154 strdup(request->id1.idmap_id_u.sid.prefix); 4155 if (mapping->id1.idmap_id_u.sid.prefix == NULL) 4156 goto errout; 4157 } 4158 } else { 4159 mapping->id1.idmap_id_u.uid = request->id1.idmap_id_u.uid; 4160 } 4161 4162 if (!EMPTY_STRING(request->id1domain)) { 4163 mapping->id1domain = strdup(request->id1domain); 4164 if (mapping->id1domain == NULL) 4165 goto errout; 4166 } 4167 4168 if (!EMPTY_STRING(request->id1name)) { 4169 mapping->id1name = strdup(request->id1name); 4170 if (mapping->id1name == NULL) 4171 goto errout; 4172 } 4173 4174 /* We don't need the rest of the request i.e request->id2 */ 4175 return (0); 4176 4177 errout: 4178 if (mapping->id1.idmap_id_u.sid.prefix != NULL) 4179 free(mapping->id1.idmap_id_u.sid.prefix); 4180 if (mapping->id1domain != NULL) 4181 free(mapping->id1domain); 4182 if (mapping->id1name != NULL) 4183 free(mapping->id1name); 4184 4185 (void) memset(mapping, 0, sizeof (*mapping)); 4186 return (-1); 4187 } 4188 4189 4190 idmap_retcode 4191 get_w2u_mapping(sqlite *cache, sqlite *db, idmap_mapping *request, 4192 idmap_mapping *mapping) 4193 { 4194 idmap_id_res idres; 4195 lookup_state_t state; 4196 char *cp; 4197 idmap_retcode retcode; 4198 const char *winname, *windomain; 4199 4200 (void) memset(&idres, 0, sizeof (idres)); 4201 (void) memset(&state, 0, sizeof (state)); 4202 state.cache = cache; 4203 state.db = db; 4204 4205 /* Get directory-based name mapping info */ 4206 retcode = load_cfg_in_state(&state); 4207 if (retcode != IDMAP_SUCCESS) 4208 goto out; 4209 4210 /* 4211 * Copy data from "request" to "mapping". Note that 4212 * empty strings are not copied from "request" to 4213 * "mapping" and therefore the coresponding strings in 4214 * "mapping" will be NULL. This eliminates having to 4215 * check for empty strings henceforth. 4216 */ 4217 if (copy_mapping_request(mapping, request) < 0) { 4218 retcode = IDMAP_ERR_MEMORY; 4219 goto out; 4220 } 4221 4222 winname = mapping->id1name; 4223 windomain = mapping->id1domain; 4224 4225 if (winname == NULL && windomain != NULL) { 4226 retcode = IDMAP_ERR_ARG; 4227 goto out; 4228 } 4229 4230 /* Need atleast winname or sid to proceed */ 4231 if (winname == NULL && mapping->id1.idmap_id_u.sid.prefix == NULL) { 4232 retcode = IDMAP_ERR_ARG; 4233 goto out; 4234 } 4235 4236 /* 4237 * If domainname is not given but we have a fully qualified 4238 * winname then extract the domainname from the winname, 4239 * otherwise use the default_domain from the config 4240 */ 4241 if (winname != NULL && windomain == NULL) { 4242 retcode = IDMAP_SUCCESS; 4243 if ((cp = strchr(winname, '@')) != NULL) { 4244 *cp = '\0'; 4245 mapping->id1domain = strdup(cp + 1); 4246 if (mapping->id1domain == NULL) 4247 retcode = IDMAP_ERR_MEMORY; 4248 } else if (lookup_wksids_name2sid(winname, NULL, NULL, NULL, 4249 NULL) != IDMAP_SUCCESS) { 4250 if (state.defdom == NULL) { 4251 /* 4252 * We have a non-qualified winname which is 4253 * neither the name of a well-known SID nor 4254 * there is a default domain with which we can 4255 * qualify it. 4256 */ 4257 retcode = IDMAP_ERR_DOMAIN_NOTFOUND; 4258 } else { 4259 mapping->id1domain = strdup(state.defdom); 4260 if (mapping->id1domain == NULL) 4261 retcode = IDMAP_ERR_MEMORY; 4262 } 4263 } 4264 if (retcode != IDMAP_SUCCESS) 4265 goto out; 4266 } 4267 4268 /* 4269 * First pass looks up the well-known SIDs table and cache 4270 * and handles localSIDs 4271 */ 4272 state.sid2pid_done = TRUE; 4273 retcode = sid2pid_first_pass(&state, mapping, &idres); 4274 if (IDMAP_ERROR(retcode) || state.sid2pid_done == TRUE) 4275 goto out; 4276 4277 /* AD lookup */ 4278 if (state.ad_nqueries > 0) { 4279 retcode = ad_lookup_one(&state, mapping, &idres); 4280 if (IDMAP_ERROR(retcode)) 4281 goto out; 4282 } 4283 4284 /* nldap lookup */ 4285 if (state.nldap_nqueries > 0) { 4286 retcode = nldap_lookup_one(&state, mapping, &idres); 4287 if (IDMAP_FATAL_ERROR(retcode)) 4288 goto out; 4289 } 4290 4291 /* Next pass performs name-based mapping and ephemeral mapping. */ 4292 state.sid2pid_done = TRUE; 4293 retcode = sid2pid_second_pass(&state, mapping, &idres); 4294 if (IDMAP_ERROR(retcode) || state.sid2pid_done == TRUE) 4295 goto out; 4296 4297 /* Update cache */ 4298 (void) update_cache_sid2pid(&state, mapping, &idres); 4299 4300 out: 4301 /* 4302 * Note that "mapping" is returned to the client. Therefore 4303 * copy whatever we have in "idres" to mapping->id2 and 4304 * free idres. 4305 */ 4306 mapping->direction = idres.direction; 4307 mapping->id2 = idres.id; 4308 if (mapping->flag & IDMAP_REQ_FLG_MAPPING_INFO || 4309 retcode != IDMAP_SUCCESS) 4310 (void) idmap_info_mov(&mapping->info, &idres.info); 4311 else 4312 idmap_info_free(&idres.info); 4313 (void) memset(&idres, 0, sizeof (idres)); 4314 if (retcode != IDMAP_SUCCESS) 4315 mapping->id2.idmap_id_u.uid = UID_NOBODY; 4316 xdr_free(xdr_idmap_id_res, (caddr_t)&idres); 4317 cleanup_lookup_state(&state); 4318 return (retcode); 4319 } 4320 4321 idmap_retcode 4322 get_u2w_mapping(sqlite *cache, sqlite *db, idmap_mapping *request, 4323 idmap_mapping *mapping, int is_user) 4324 { 4325 idmap_id_res idres; 4326 lookup_state_t state; 4327 idmap_retcode retcode; 4328 4329 /* 4330 * In order to re-use the pid2sid code, we convert 4331 * our input data into structs that are expected by 4332 * pid2sid_first_pass. 4333 */ 4334 4335 (void) memset(&idres, 0, sizeof (idres)); 4336 (void) memset(&state, 0, sizeof (state)); 4337 state.cache = cache; 4338 state.db = db; 4339 4340 /* Get directory-based name mapping info */ 4341 retcode = load_cfg_in_state(&state); 4342 if (retcode != IDMAP_SUCCESS) 4343 goto out; 4344 4345 /* 4346 * Copy data from "request" to "mapping". Note that 4347 * empty strings are not copied from "request" to 4348 * "mapping" and therefore the coresponding strings in 4349 * "mapping" will be NULL. This eliminates having to 4350 * check for empty strings henceforth. 4351 */ 4352 if (copy_mapping_request(mapping, request) < 0) { 4353 retcode = IDMAP_ERR_MEMORY; 4354 goto out; 4355 } 4356 4357 /* 4358 * For unix to windows mapping request, we need atleast a 4359 * unixname or uid/gid to proceed 4360 */ 4361 if (mapping->id1name == NULL && 4362 mapping->id1.idmap_id_u.uid == SENTINEL_PID) { 4363 retcode = IDMAP_ERR_ARG; 4364 goto out; 4365 } 4366 4367 /* First pass looks up cache and well-known SIDs */ 4368 state.pid2sid_done = TRUE; 4369 retcode = pid2sid_first_pass(&state, mapping, &idres, is_user, 1); 4370 if (IDMAP_ERROR(retcode) || state.pid2sid_done == TRUE) 4371 goto out; 4372 4373 /* nldap lookup */ 4374 if (state.nldap_nqueries > 0) { 4375 retcode = nldap_lookup_one(&state, mapping, &idres); 4376 if (IDMAP_FATAL_ERROR(retcode)) 4377 goto out; 4378 } 4379 4380 /* AD lookup */ 4381 if (state.ad_nqueries > 0) { 4382 retcode = ad_lookup_one(&state, mapping, &idres); 4383 if (IDMAP_FATAL_ERROR(retcode)) 4384 goto out; 4385 } 4386 4387 /* 4388 * Next pass processes the result of the preceding passes/lookups. 4389 * It returns if there's nothing more to be done otherwise it 4390 * evaluates local name-based mapping rules 4391 */ 4392 state.pid2sid_done = TRUE; 4393 retcode = pid2sid_second_pass(&state, mapping, &idres, is_user); 4394 if (IDMAP_ERROR(retcode) || state.pid2sid_done == TRUE) 4395 goto out; 4396 4397 /* Update cache */ 4398 (void) update_cache_pid2sid(&state, mapping, &idres); 4399 4400 out: 4401 /* 4402 * Note that "mapping" is returned to the client. Therefore 4403 * copy whatever we have in "idres" to mapping->id2 and 4404 * free idres. 4405 */ 4406 mapping->direction = idres.direction; 4407 mapping->id2 = idres.id; 4408 if (mapping->flag & IDMAP_REQ_FLG_MAPPING_INFO || 4409 retcode != IDMAP_SUCCESS) 4410 (void) idmap_info_mov(&mapping->info, &idres.info); 4411 else 4412 idmap_info_free(&idres.info); 4413 (void) memset(&idres, 0, sizeof (idres)); 4414 xdr_free(xdr_idmap_id_res, (caddr_t)&idres); 4415 cleanup_lookup_state(&state); 4416 return (retcode); 4417 } 4418 4419 /*ARGSUSED*/ 4420 static 4421 idmap_retcode 4422 ad_lookup_one(lookup_state_t *state, idmap_mapping *req, idmap_id_res *res) 4423 { 4424 idmap_mapping_batch batch; 4425 idmap_ids_res result; 4426 4427 batch.idmap_mapping_batch_len = 1; 4428 batch.idmap_mapping_batch_val = req; 4429 result.ids.ids_len = 1; 4430 result.ids.ids_val = res; 4431 return (ad_lookup_batch(state, &batch, &result)); 4432 } 4433