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 (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved. 23 */ 24 25 26 /* 27 * Service routines 28 */ 29 30 #include "idmapd.h" 31 #include "idmap_priv.h" 32 #include "nldaputils.h" 33 #include <signal.h> 34 #include <thread.h> 35 #include <string.h> 36 #include <strings.h> 37 #include <errno.h> 38 #include <assert.h> 39 #include <sys/types.h> 40 #include <sys/stat.h> 41 #include <sys/sid.h> 42 #include <ucred.h> 43 #include <pwd.h> 44 #include <auth_attr.h> 45 #include <secdb.h> 46 #include <sys/u8_textprep.h> 47 #include <note.h> 48 49 #define _VALIDATE_LIST_CB_DATA(col, val, siz)\ 50 retcode = validate_list_cb_data(cb_data, argc, argv, col,\ 51 (uchar_t **)val, siz);\ 52 if (retcode == IDMAP_NEXT) {\ 53 result->retcode = IDMAP_NEXT;\ 54 return (0);\ 55 } else if (retcode < 0) {\ 56 result->retcode = retcode;\ 57 return (1);\ 58 } 59 60 #define PROCESS_LIST_SVC_SQL(rcode, db, dbname, sql, limit, flag, cb, res, len)\ 61 rcode = process_list_svc_sql(db, dbname, sql, limit, flag, cb, res);\ 62 if (rcode == IDMAP_ERR_BUSY)\ 63 res->retcode = IDMAP_ERR_BUSY;\ 64 else if (rcode == IDMAP_SUCCESS && len == 0)\ 65 res->retcode = IDMAP_ERR_NOTFOUND; 66 67 68 #define STRDUP_OR_FAIL(to, from) \ 69 if ((from) == NULL) \ 70 to = NULL; \ 71 else { \ 72 if ((to = strdup(from)) == NULL) \ 73 return (1); \ 74 } 75 76 #define STRDUP_CHECK(to, from) \ 77 if ((from) != NULL) { \ 78 to = strdup(from); \ 79 if (to == NULL) { \ 80 result->retcode = IDMAP_ERR_MEMORY; \ 81 goto out; \ 82 } \ 83 } 84 85 /* ARGSUSED */ 86 bool_t 87 idmap_null_1_svc(void *result, struct svc_req *rqstp) 88 { 89 return (TRUE); 90 } 91 92 /* 93 * RPC layer allocates empty strings to replace NULL char *. 94 * This utility function frees these empty strings. 95 */ 96 static 97 void 98 sanitize_mapping_request(idmap_mapping *req) 99 { 100 if (EMPTY_STRING(req->id1name)) { 101 free(req->id1name); 102 req->id1name = NULL; 103 } 104 if (EMPTY_STRING(req->id1domain)) { 105 free(req->id1domain); 106 req->id1domain = NULL; 107 } 108 if (EMPTY_STRING(req->id2name)) { 109 free(req->id2name); 110 req->id2name = NULL; 111 } 112 if (EMPTY_STRING(req->id2domain)) { 113 free(req->id2domain); 114 req->id2domain = NULL; 115 } 116 req->direction = _IDMAP_F_DONE; 117 } 118 119 static 120 int 121 validate_mapped_id_by_name_req(idmap_mapping *req) 122 { 123 int e; 124 125 if (IS_ID_UID(req->id1) || IS_ID_GID(req->id1)) 126 return (IDMAP_SUCCESS); 127 128 if (IS_ID_SID(req->id1)) { 129 if (!EMPTY_STRING(req->id1name) && 130 u8_validate(req->id1name, strlen(req->id1name), 131 NULL, U8_VALIDATE_ENTIRE, &e) < 0) 132 return (IDMAP_ERR_BAD_UTF8); 133 if (!EMPTY_STRING(req->id1domain) && 134 u8_validate(req->id1domain, strlen(req->id1domain), 135 NULL, U8_VALIDATE_ENTIRE, &e) < 0) 136 return (IDMAP_ERR_BAD_UTF8); 137 } 138 139 return (IDMAP_SUCCESS); 140 } 141 142 static 143 int 144 validate_rule(idmap_namerule *rule) 145 { 146 int e; 147 148 if (!EMPTY_STRING(rule->winname) && 149 u8_validate(rule->winname, strlen(rule->winname), 150 NULL, U8_VALIDATE_ENTIRE, &e) < 0) 151 return (IDMAP_ERR_BAD_UTF8); 152 153 if (!EMPTY_STRING(rule->windomain) && 154 u8_validate(rule->windomain, strlen(rule->windomain), 155 NULL, U8_VALIDATE_ENTIRE, &e) < 0) 156 return (IDMAP_ERR_BAD_UTF8); 157 158 return (IDMAP_SUCCESS); 159 160 } 161 162 static 163 bool_t 164 validate_rules(idmap_update_batch *batch) 165 { 166 idmap_update_op *up; 167 int i; 168 169 for (i = 0; i < batch->idmap_update_batch_len; i++) { 170 up = &(batch->idmap_update_batch_val[i]); 171 if (validate_rule(&(up->idmap_update_op_u.rule)) 172 != IDMAP_SUCCESS) 173 return (IDMAP_ERR_BAD_UTF8); 174 } 175 176 return (IDMAP_SUCCESS); 177 } 178 179 /* ARGSUSED */ 180 bool_t 181 idmap_get_mapped_ids_1_svc(idmap_mapping_batch batch, 182 idmap_ids_res *result, struct svc_req *rqstp) 183 { 184 sqlite *cache = NULL, *db = NULL; 185 lookup_state_t state; 186 idmap_retcode retcode; 187 uint_t i; 188 idmap_mapping *req; 189 idmap_id_res *res; 190 boolean_t any_tracing; 191 192 /* Init */ 193 (void) memset(result, 0, sizeof (*result)); 194 (void) memset(&state, 0, sizeof (state)); 195 196 /* Return success if nothing was requested */ 197 if (batch.idmap_mapping_batch_len < 1) 198 goto out; 199 200 /* Get cache handle */ 201 result->retcode = get_cache_handle(&cache); 202 if (result->retcode != IDMAP_SUCCESS) 203 goto out; 204 state.cache = cache; 205 206 /* Get db handle */ 207 result->retcode = get_db_handle(&db); 208 if (result->retcode != IDMAP_SUCCESS) 209 goto out; 210 state.db = db; 211 212 /* Allocate result array */ 213 result->ids.ids_val = calloc(batch.idmap_mapping_batch_len, 214 sizeof (idmap_id_res)); 215 if (result->ids.ids_val == NULL) { 216 idmapdlog(LOG_ERR, "Out of memory"); 217 result->retcode = IDMAP_ERR_MEMORY; 218 goto out; 219 } 220 result->ids.ids_len = batch.idmap_mapping_batch_len; 221 222 /* Allocate hash table to check for duplicate sids */ 223 state.sid_history = calloc(batch.idmap_mapping_batch_len, 224 sizeof (*state.sid_history)); 225 if (state.sid_history == NULL) { 226 idmapdlog(LOG_ERR, "Out of memory"); 227 result->retcode = IDMAP_ERR_MEMORY; 228 goto out; 229 } 230 state.sid_history_size = batch.idmap_mapping_batch_len; 231 for (i = 0; i < state.sid_history_size; i++) { 232 state.sid_history[i].key = state.sid_history_size; 233 state.sid_history[i].next = state.sid_history_size; 234 } 235 state.batch = &batch; 236 state.result = result; 237 238 /* Get directory-based name mapping info */ 239 result->retcode = load_cfg_in_state(&state); 240 if (result->retcode != IDMAP_SUCCESS) 241 goto out; 242 243 /* Init our 'done' flags */ 244 state.sid2pid_done = state.pid2sid_done = TRUE; 245 246 any_tracing = B_FALSE; 247 248 /* First stage */ 249 for (i = 0; i < batch.idmap_mapping_batch_len; i++) { 250 req = &batch.idmap_mapping_batch_val[i]; 251 res = &result->ids.ids_val[i]; 252 if (TRACING(req)) 253 any_tracing = B_TRUE; 254 state.curpos = i; 255 (void) sanitize_mapping_request(req); 256 TRACE(req, res, "Start mapping"); 257 if (IS_ID_SID(req->id1)) { 258 retcode = sid2pid_first_pass( 259 &state, 260 req, 261 res); 262 } else if (IS_ID_UID(req->id1)) { 263 retcode = pid2sid_first_pass( 264 &state, 265 req, 266 res, 1); 267 } else if (IS_ID_GID(req->id1)) { 268 retcode = pid2sid_first_pass( 269 &state, 270 req, 271 res, 0); 272 } else { 273 res->retcode = IDMAP_ERR_IDTYPE; 274 continue; 275 } 276 if (IDMAP_FATAL_ERROR(retcode)) { 277 result->retcode = retcode; 278 goto out; 279 } 280 } 281 282 /* Check if we are done */ 283 if (state.sid2pid_done == TRUE && state.pid2sid_done == TRUE) 284 goto out; 285 286 /* 287 * native LDAP lookups: 288 * pid2sid: 289 * - nldap or mixed mode. Lookup nldap by pid or unixname to get 290 * winname. 291 * sid2pid: 292 * - nldap mode. Got winname and sid (either given or found in 293 * name_cache). Lookup nldap by winname to get pid and 294 * unixname. 295 */ 296 if (state.nldap_nqueries) { 297 retcode = nldap_lookup_batch(&state, &batch, result); 298 if (IDMAP_FATAL_ERROR(retcode)) { 299 TRACE(req, res, "Native LDAP lookup error=%d", retcode); 300 result->retcode = retcode; 301 goto out; 302 } 303 if (any_tracing) { 304 for (i = 0; i < batch.idmap_mapping_batch_len; i++) { 305 res = &result->ids.ids_val[i]; 306 req = &batch.idmap_mapping_batch_val[i]; 307 if (IDMAP_ERROR(res->retcode)) { 308 TRACE(req, res, 309 "Native LDAP lookup error=%d", 310 res->retcode); 311 } else { 312 TRACE(req, res, "Native LDAP lookup"); 313 } 314 } 315 } 316 } 317 318 /* 319 * AD lookups: 320 * pid2sid: 321 * - nldap or mixed mode. Got winname from nldap lookup. 322 * winname2sid could not be resolved locally. Lookup AD 323 * by winname to get sid. 324 * - ad mode. Got unixname. Lookup AD by unixname to get 325 * winname and sid. 326 * sid2pid: 327 * - ad or mixed mode. Lookup AD by sid or winname to get 328 * winname, sid and unixname. 329 * - any mode. Got either sid or winname but not both. Lookup 330 * AD by sid or winname to get winname, sid. 331 */ 332 if (state.ad_nqueries) { 333 retcode = ad_lookup_batch(&state, &batch, result); 334 if (IDMAP_FATAL_ERROR(retcode)) { 335 TRACE(req, res, "AD lookup error=%d", retcode); 336 result->retcode = retcode; 337 goto out; 338 } 339 for (i = 0; i < batch.idmap_mapping_batch_len; i++) { 340 res = &result->ids.ids_val[i]; 341 req = &batch.idmap_mapping_batch_val[i]; 342 if (res->retcode == IDMAP_ERR_DOMAIN_NOTFOUND && 343 req->id1.idmap_id_u.sid.prefix != NULL && 344 req->id1name != NULL) { 345 /* 346 * If AD lookup failed Domain Not Found but 347 * we have a winname and SID, it means that 348 * - LSA succeeded 349 * - it's a request a cross-forest trust 350 * and 351 * - we were looking for directory-based 352 * mapping information. 353 * In that case, we're OK, just go on. 354 * 355 * If this seems more convoluted than it 356 * should be, it is - really, we probably 357 * shouldn't even be attempting AD lookups 358 * in this situation, but that's a more 359 * intricate cleanup that will have to wait 360 * for later. 361 */ 362 res->retcode = IDMAP_SUCCESS; 363 TRACE(req, res, 364 "AD lookup - domain not found (ignored)"); 365 continue; 366 } 367 } 368 } 369 370 /* 371 * native LDAP lookups: 372 * sid2pid: 373 * - nldap mode. Got winname and sid from AD lookup. Lookup nldap 374 * by winname to get pid and unixname. 375 */ 376 if (state.nldap_nqueries) { 377 retcode = nldap_lookup_batch(&state, &batch, result); 378 if (IDMAP_FATAL_ERROR(retcode)) { 379 TRACE(req, res, "Native LDAP lookup error=%d", retcode); 380 result->retcode = retcode; 381 goto out; 382 } 383 if (any_tracing) { 384 for (i = 0; i < batch.idmap_mapping_batch_len; i++) { 385 res = &result->ids.ids_val[i]; 386 req = &batch.idmap_mapping_batch_val[i]; 387 TRACE(req, res, "Native LDAP lookup"); 388 } 389 } 390 } 391 392 /* Reset 'done' flags */ 393 state.sid2pid_done = state.pid2sid_done = TRUE; 394 395 /* Second stage */ 396 for (i = 0; i < batch.idmap_mapping_batch_len; i++) { 397 req = &batch.idmap_mapping_batch_val[i]; 398 res = &result->ids.ids_val[i]; 399 state.curpos = i; 400 if (IS_ID_SID(req->id1)) { 401 retcode = sid2pid_second_pass( 402 &state, 403 req, 404 res); 405 } else if (IS_ID_UID(req->id1)) { 406 retcode = pid2sid_second_pass( 407 &state, 408 req, 409 res, 1); 410 } else if (IS_ID_GID(req->id1)) { 411 retcode = pid2sid_second_pass( 412 &state, 413 req, 414 res, 0); 415 } else { 416 /* First stage has already set the error */ 417 continue; 418 } 419 if (IDMAP_FATAL_ERROR(retcode)) { 420 result->retcode = retcode; 421 goto out; 422 } 423 } 424 425 /* Check if we are done */ 426 if (state.sid2pid_done == TRUE && state.pid2sid_done == TRUE) 427 goto out; 428 429 /* Reset our 'done' flags */ 430 state.sid2pid_done = state.pid2sid_done = TRUE; 431 432 /* Update cache in a single transaction */ 433 if (sql_exec_no_cb(cache, IDMAP_CACHENAME, "BEGIN TRANSACTION;") 434 != IDMAP_SUCCESS) 435 goto out; 436 437 for (i = 0; i < batch.idmap_mapping_batch_len; i++) { 438 req = &batch.idmap_mapping_batch_val[i]; 439 res = &result->ids.ids_val[i]; 440 state.curpos = i; 441 if (IS_ID_SID(req->id1)) { 442 (void) update_cache_sid2pid( 443 &state, 444 req, 445 res); 446 } else if ((IS_ID_UID(req->id1)) || 447 (IS_ID_GID(req->id1))) { 448 (void) update_cache_pid2sid( 449 &state, 450 req, 451 res); 452 } 453 } 454 455 /* Commit if we have at least one successful update */ 456 if (state.sid2pid_done == FALSE || state.pid2sid_done == FALSE) 457 (void) sql_exec_no_cb(cache, IDMAP_CACHENAME, 458 "COMMIT TRANSACTION;"); 459 else 460 (void) sql_exec_no_cb(cache, IDMAP_CACHENAME, 461 "END TRANSACTION;"); 462 463 out: 464 cleanup_lookup_state(&state); 465 if (IDMAP_ERROR(result->retcode)) { 466 if (any_tracing) { 467 for (i = 0; i < batch.idmap_mapping_batch_len; i++) { 468 req = &batch.idmap_mapping_batch_val[i]; 469 res = &result->ids.ids_val[i]; 470 TRACE(req, res, 471 "Failure code %d", result->retcode); 472 } 473 } 474 xdr_free(xdr_idmap_ids_res, (caddr_t)result); 475 result->ids.ids_len = 0; 476 result->ids.ids_val = NULL; 477 } else { 478 if (any_tracing) { 479 for (i = 0; i < batch.idmap_mapping_batch_len; i++) { 480 req = &batch.idmap_mapping_batch_val[i]; 481 res = &result->ids.ids_val[i]; 482 TRACE(req, res, "Done"); 483 } 484 } 485 } 486 result->retcode = idmap_stat4prot(result->retcode); 487 488 for (i = 0; i < result->ids.ids_len; i++) { 489 req = &batch.idmap_mapping_batch_val[i]; 490 res = &result->ids.ids_val[i]; 491 492 if (!(req->flag & IDMAP_REQ_FLG_MAPPING_INFO) && 493 res->retcode == IDMAP_SUCCESS) 494 idmap_how_clear(&res->info.how); 495 } 496 return (TRUE); 497 } 498 499 500 /* ARGSUSED */ 501 static 502 int 503 list_mappings_cb(void *parg, int argc, char **argv, char **colnames) 504 { 505 list_cb_data_t *cb_data; 506 char *str; 507 idmap_mappings_res *result; 508 idmap_retcode retcode; 509 int w2u, u2w; 510 char *end; 511 static int validated_column_names = 0; 512 idmap_how *how; 513 514 cb_data = (list_cb_data_t *)parg; 515 516 if (!validated_column_names) { 517 assert(strcmp(colnames[0], "rowid") == 0); 518 assert(strcmp(colnames[1], "sidprefix") == 0); 519 assert(strcmp(colnames[2], "rid") == 0); 520 assert(strcmp(colnames[3], "pid") == 0); 521 assert(strcmp(colnames[4], "w2u") == 0); 522 assert(strcmp(colnames[5], "u2w") == 0); 523 assert(strcmp(colnames[6], "windomain") == 0); 524 assert(strcmp(colnames[7], "canon_winname") == 0); 525 assert(strcmp(colnames[8], "unixname") == 0); 526 assert(strcmp(colnames[9], "is_user") == 0); 527 assert(strcmp(colnames[10], "is_wuser") == 0); 528 assert(strcmp(colnames[11], "map_type") == 0); 529 assert(strcmp(colnames[12], "map_dn") == 0); 530 assert(strcmp(colnames[13], "map_attr") == 0); 531 assert(strcmp(colnames[14], "map_value") == 0); 532 assert(strcmp(colnames[15], "map_windomain") == 0); 533 assert(strcmp(colnames[16], "map_winname") == 0); 534 assert(strcmp(colnames[17], "map_unixname") == 0); 535 assert(strcmp(colnames[18], "map_is_nt4") == 0); 536 validated_column_names = 1; 537 } 538 539 result = (idmap_mappings_res *)cb_data->result; 540 541 _VALIDATE_LIST_CB_DATA(19, &result->mappings.mappings_val, 542 sizeof (idmap_mapping)); 543 544 result->mappings.mappings_len++; 545 546 if ((str = strdup(argv[1])) == NULL) 547 return (1); 548 result->mappings.mappings_val[cb_data->next].id1.idmap_id_u.sid.prefix = 549 str; 550 result->mappings.mappings_val[cb_data->next].id1.idmap_id_u.sid.rid = 551 strtoul(argv[2], &end, 10); 552 result->mappings.mappings_val[cb_data->next].id1.idtype = 553 strtol(argv[10], &end, 10) ? IDMAP_USID : IDMAP_GSID; 554 555 result->mappings.mappings_val[cb_data->next].id2.idmap_id_u.uid = 556 strtoul(argv[3], &end, 10); 557 result->mappings.mappings_val[cb_data->next].id2.idtype = 558 strtol(argv[9], &end, 10) ? IDMAP_UID : IDMAP_GID; 559 560 w2u = argv[4] ? strtol(argv[4], &end, 10) : 0; 561 u2w = argv[5] ? strtol(argv[5], &end, 10) : 0; 562 563 if (w2u > 0 && u2w == 0) 564 result->mappings.mappings_val[cb_data->next].direction = 565 IDMAP_DIRECTION_W2U; 566 else if (w2u == 0 && u2w > 0) 567 result->mappings.mappings_val[cb_data->next].direction = 568 IDMAP_DIRECTION_U2W; 569 else 570 result->mappings.mappings_val[cb_data->next].direction = 571 IDMAP_DIRECTION_BI; 572 573 STRDUP_OR_FAIL(result->mappings.mappings_val[cb_data->next].id1domain, 574 argv[6]); 575 576 STRDUP_OR_FAIL(result->mappings.mappings_val[cb_data->next].id1name, 577 argv[7]); 578 579 STRDUP_OR_FAIL(result->mappings.mappings_val[cb_data->next].id2name, 580 argv[8]); 581 582 if (cb_data->flag & IDMAP_REQ_FLG_MAPPING_INFO) { 583 how = &result->mappings.mappings_val[cb_data->next].info.how; 584 how->map_type = strtoul(argv[11], &end, 10); 585 switch (how->map_type) { 586 case IDMAP_MAP_TYPE_DS_AD: 587 how->idmap_how_u.ad.dn = 588 strdup(argv[12]); 589 how->idmap_how_u.ad.attr = 590 strdup(argv[13]); 591 how->idmap_how_u.ad.value = 592 strdup(argv[14]); 593 break; 594 595 case IDMAP_MAP_TYPE_DS_NLDAP: 596 how->idmap_how_u.nldap.dn = 597 strdup(argv[12]); 598 how->idmap_how_u.nldap.attr = 599 strdup(argv[13]); 600 how->idmap_how_u.nldap.value = 601 strdup(argv[14]); 602 break; 603 604 case IDMAP_MAP_TYPE_RULE_BASED: 605 how->idmap_how_u.rule.windomain = 606 strdup(argv[15]); 607 how->idmap_how_u.rule.winname = 608 strdup(argv[16]); 609 how->idmap_how_u.rule.unixname = 610 strdup(argv[17]); 611 how->idmap_how_u.rule.is_nt4 = 612 strtoul(argv[18], &end, 10); 613 how->idmap_how_u.rule.is_user = 614 strtol(argv[9], &end, 10); 615 how->idmap_how_u.rule.is_wuser = 616 strtol(argv[10], &end, 10); 617 break; 618 619 case IDMAP_MAP_TYPE_EPHEMERAL: 620 break; 621 622 case IDMAP_MAP_TYPE_LOCAL_SID: 623 break; 624 625 case IDMAP_MAP_TYPE_IDMU: 626 how->idmap_how_u.idmu.dn = 627 strdup(argv[12]); 628 how->idmap_how_u.idmu.attr = 629 strdup(argv[13]); 630 how->idmap_how_u.idmu.value = 631 strdup(argv[14]); 632 break; 633 634 default: 635 /* Unknown mapping type */ 636 assert(FALSE); 637 } 638 639 } 640 641 result->lastrowid = strtoll(argv[0], &end, 10); 642 cb_data->next++; 643 result->retcode = IDMAP_SUCCESS; 644 return (0); 645 } 646 647 648 /* ARGSUSED */ 649 bool_t 650 idmap_list_mappings_1_svc(int64_t lastrowid, uint64_t limit, int32_t flag, 651 idmap_mappings_res *result, struct svc_req *rqstp) 652 { 653 sqlite *cache = NULL; 654 char lbuf[30], rbuf[30]; 655 uint64_t maxlimit; 656 idmap_retcode retcode; 657 char *sql = NULL; 658 time_t curtime; 659 660 (void) memset(result, 0, sizeof (*result)); 661 662 /* Current time */ 663 errno = 0; 664 if ((curtime = time(NULL)) == (time_t)-1) { 665 idmapdlog(LOG_ERR, "Failed to get current time (%s)", 666 strerror(errno)); 667 retcode = IDMAP_ERR_INTERNAL; 668 goto out; 669 } 670 671 RDLOCK_CONFIG(); 672 maxlimit = _idmapdstate.cfg->pgcfg.list_size_limit; 673 UNLOCK_CONFIG(); 674 675 /* Get cache handle */ 676 result->retcode = get_cache_handle(&cache); 677 if (result->retcode != IDMAP_SUCCESS) 678 goto out; 679 680 result->retcode = IDMAP_ERR_INTERNAL; 681 682 /* Create LIMIT expression. */ 683 if (limit == 0 || (maxlimit > 0 && maxlimit < limit)) 684 limit = maxlimit; 685 if (limit > 0) 686 (void) snprintf(lbuf, sizeof (lbuf), 687 "LIMIT %" PRIu64, limit + 1ULL); 688 else 689 lbuf[0] = '\0'; 690 691 (void) snprintf(rbuf, sizeof (rbuf), "rowid > %" PRIu64, lastrowid); 692 693 /* 694 * Combine all the above into a giant SELECT statement that 695 * will return the requested mappings 696 */ 697 698 sql = sqlite_mprintf("SELECT rowid, sidprefix, rid, pid, w2u, " 699 "u2w, windomain, canon_winname, unixname, is_user, is_wuser, " 700 "map_type, map_dn, map_attr, map_value, map_windomain, " 701 "map_winname, map_unixname, map_is_nt4 " 702 "FROM idmap_cache WHERE %s AND " 703 "(pid >= 2147483648 OR (expiration = 0 OR " 704 "expiration ISNULL OR expiration > %d)) " 705 "%s;", 706 rbuf, curtime, lbuf); 707 if (sql == NULL) { 708 result->retcode = IDMAP_ERR_MEMORY; 709 idmapdlog(LOG_ERR, "Out of memory"); 710 goto out; 711 } 712 713 /* Execute the SQL statement and update the return buffer */ 714 PROCESS_LIST_SVC_SQL(retcode, cache, IDMAP_CACHENAME, sql, limit, 715 flag, list_mappings_cb, result, result->mappings.mappings_len); 716 717 out: 718 if (sql) 719 sqlite_freemem(sql); 720 if (IDMAP_ERROR(result->retcode)) 721 xdr_free(xdr_idmap_mappings_res, (caddr_t)result); 722 result->retcode = idmap_stat4prot(result->retcode); 723 return (TRUE); 724 } 725 726 727 /* ARGSUSED */ 728 static 729 int 730 list_namerules_cb(void *parg, int argc, char **argv, char **colnames) 731 { 732 list_cb_data_t *cb_data; 733 idmap_namerules_res *result; 734 idmap_retcode retcode; 735 int w2u_order, u2w_order; 736 char *end; 737 static int validated_column_names = 0; 738 739 if (!validated_column_names) { 740 assert(strcmp(colnames[0], "rowid") == 0); 741 assert(strcmp(colnames[1], "is_user") == 0); 742 assert(strcmp(colnames[2], "is_wuser") == 0); 743 assert(strcmp(colnames[3], "windomain") == 0); 744 assert(strcmp(colnames[4], "winname_display") == 0); 745 assert(strcmp(colnames[5], "is_nt4") == 0); 746 assert(strcmp(colnames[6], "unixname") == 0); 747 assert(strcmp(colnames[7], "w2u_order") == 0); 748 assert(strcmp(colnames[8], "u2w_order") == 0); 749 validated_column_names = 1; 750 } 751 752 cb_data = (list_cb_data_t *)parg; 753 result = (idmap_namerules_res *)cb_data->result; 754 755 _VALIDATE_LIST_CB_DATA(9, &result->rules.rules_val, 756 sizeof (idmap_namerule)); 757 758 result->rules.rules_len++; 759 760 result->rules.rules_val[cb_data->next].is_user = 761 strtol(argv[1], &end, 10); 762 763 result->rules.rules_val[cb_data->next].is_wuser = 764 strtol(argv[2], &end, 10); 765 766 STRDUP_OR_FAIL(result->rules.rules_val[cb_data->next].windomain, 767 argv[3]); 768 769 STRDUP_OR_FAIL(result->rules.rules_val[cb_data->next].winname, 770 argv[4]); 771 772 result->rules.rules_val[cb_data->next].is_nt4 = 773 strtol(argv[5], &end, 10); 774 775 STRDUP_OR_FAIL(result->rules.rules_val[cb_data->next].unixname, 776 argv[6]); 777 778 w2u_order = argv[7] ? strtol(argv[7], &end, 10) : 0; 779 u2w_order = argv[8] ? strtol(argv[8], &end, 10) : 0; 780 781 if (w2u_order > 0 && u2w_order == 0) 782 result->rules.rules_val[cb_data->next].direction = 783 IDMAP_DIRECTION_W2U; 784 else if (w2u_order == 0 && u2w_order > 0) 785 result->rules.rules_val[cb_data->next].direction = 786 IDMAP_DIRECTION_U2W; 787 else 788 result->rules.rules_val[cb_data->next].direction = 789 IDMAP_DIRECTION_BI; 790 791 result->lastrowid = strtoll(argv[0], &end, 10); 792 cb_data->next++; 793 result->retcode = IDMAP_SUCCESS; 794 return (0); 795 } 796 797 798 /* ARGSUSED */ 799 bool_t 800 idmap_list_namerules_1_svc(idmap_namerule rule, uint64_t lastrowid, 801 uint64_t limit, idmap_namerules_res *result, struct svc_req *rqstp) 802 { 803 804 sqlite *db = NULL; 805 char lbuf[30], rbuf[30]; 806 char *sql = NULL; 807 char *expr = NULL; 808 uint64_t maxlimit; 809 idmap_retcode retcode; 810 811 (void) memset(result, 0, sizeof (*result)); 812 813 result->retcode = validate_rule(&rule); 814 if (result->retcode != IDMAP_SUCCESS) 815 goto out; 816 817 RDLOCK_CONFIG(); 818 maxlimit = _idmapdstate.cfg->pgcfg.list_size_limit; 819 UNLOCK_CONFIG(); 820 821 /* Get db handle */ 822 result->retcode = get_db_handle(&db); 823 if (result->retcode != IDMAP_SUCCESS) 824 goto out; 825 826 result->retcode = gen_sql_expr_from_rule(&rule, &expr); 827 if (result->retcode != IDMAP_SUCCESS) 828 goto out; 829 830 /* Create LIMIT expression. */ 831 if (limit == 0 || (maxlimit > 0 && maxlimit < limit)) 832 limit = maxlimit; 833 if (limit > 0) 834 (void) snprintf(lbuf, sizeof (lbuf), 835 "LIMIT %" PRIu64, limit + 1ULL); 836 else 837 lbuf[0] = '\0'; 838 839 (void) snprintf(rbuf, sizeof (rbuf), "rowid > %" PRIu64, lastrowid); 840 841 /* 842 * Combine all the above into a giant SELECT statement that 843 * will return the requested rules 844 */ 845 sql = sqlite_mprintf("SELECT rowid, is_user, is_wuser, windomain, " 846 "winname_display, is_nt4, unixname, w2u_order, u2w_order " 847 "FROM namerules WHERE " 848 " %s %s %s;", 849 rbuf, expr, lbuf); 850 851 if (sql == NULL) { 852 result->retcode = IDMAP_ERR_MEMORY; 853 idmapdlog(LOG_ERR, "Out of memory"); 854 goto out; 855 } 856 857 /* Execute the SQL statement and update the return buffer */ 858 PROCESS_LIST_SVC_SQL(retcode, db, IDMAP_DBNAME, sql, limit, 859 0, list_namerules_cb, result, result->rules.rules_len); 860 861 out: 862 if (expr) 863 sqlite_freemem(expr); 864 if (sql) 865 sqlite_freemem(sql); 866 if (IDMAP_ERROR(result->retcode)) 867 xdr_free(xdr_idmap_namerules_res, (caddr_t)result); 868 result->retcode = idmap_stat4prot(result->retcode); 869 return (TRUE); 870 } 871 872 #define IDMAP_RULES_AUTH "solaris.admin.idmap.rules" 873 static int 874 verify_rules_auth(struct svc_req *rqstp) 875 { 876 ucred_t *uc = NULL; 877 uid_t uid; 878 char buf[1024]; 879 struct passwd pwd; 880 881 if (svc_getcallerucred(rqstp->rq_xprt, &uc) != 0) { 882 idmapdlog(LOG_ERR, "svc_getcallerucred failed during " 883 "authorization (%s)", strerror(errno)); 884 return (-1); 885 } 886 887 uid = ucred_geteuid(uc); 888 if (uid == (uid_t)-1) { 889 idmapdlog(LOG_ERR, "ucred_geteuid failed during " 890 "authorization (%s)", strerror(errno)); 891 ucred_free(uc); 892 return (-1); 893 } 894 895 if (getpwuid_r(uid, &pwd, buf, sizeof (buf)) == NULL) { 896 idmapdlog(LOG_ERR, "getpwuid_r(%u) failed during " 897 "authorization (%s)", uid, strerror(errno)); 898 ucred_free(uc); 899 return (-1); 900 } 901 902 if (chkauthattr(IDMAP_RULES_AUTH, pwd.pw_name) != 1) { 903 idmapdlog(LOG_INFO, "%s is not authorized (%s)", 904 pwd.pw_name, IDMAP_RULES_AUTH); 905 ucred_free(uc); 906 return (-1); 907 } 908 909 ucred_free(uc); 910 return (1); 911 } 912 913 /* 914 * Meaning of the return values is the following: For retcode == 915 * IDMAP_SUCCESS, everything went OK and error_index is 916 * undefined. Otherwise, error_index >=0 shows the failed batch 917 * element. errro_index == -1 indicates failure at the beginning, 918 * error_index == -2 at the end. 919 */ 920 921 /* ARGSUSED */ 922 bool_t 923 idmap_update_1_svc(idmap_update_batch batch, idmap_update_res *res, 924 struct svc_req *rqstp) 925 { 926 sqlite *db = NULL; 927 idmap_update_op *up; 928 int i; 929 int trans = FALSE; 930 931 res->error_index = -1; 932 (void) memset(&res->error_rule, 0, sizeof (res->error_rule)); 933 (void) memset(&res->conflict_rule, 0, sizeof (res->conflict_rule)); 934 935 if (verify_rules_auth(rqstp) < 0) { 936 res->retcode = IDMAP_ERR_PERMISSION_DENIED; 937 goto out; 938 } 939 940 if (batch.idmap_update_batch_len == 0 || 941 batch.idmap_update_batch_val == NULL) { 942 res->retcode = IDMAP_SUCCESS; 943 goto out; 944 } 945 946 res->retcode = validate_rules(&batch); 947 if (res->retcode != IDMAP_SUCCESS) 948 goto out; 949 950 /* Get db handle */ 951 res->retcode = get_db_handle(&db); 952 if (res->retcode != IDMAP_SUCCESS) 953 goto out; 954 955 res->retcode = sql_exec_no_cb(db, IDMAP_DBNAME, "BEGIN TRANSACTION;"); 956 if (res->retcode != IDMAP_SUCCESS) 957 goto out; 958 trans = TRUE; 959 960 for (i = 0; i < batch.idmap_update_batch_len; i++) { 961 up = &batch.idmap_update_batch_val[i]; 962 switch (up->opnum) { 963 case OP_NONE: 964 res->retcode = IDMAP_SUCCESS; 965 break; 966 case OP_ADD_NAMERULE: 967 res->retcode = add_namerule(db, 968 &up->idmap_update_op_u.rule); 969 break; 970 case OP_RM_NAMERULE: 971 res->retcode = rm_namerule(db, 972 &up->idmap_update_op_u.rule); 973 break; 974 case OP_FLUSH_NAMERULES: 975 res->retcode = flush_namerules(db); 976 break; 977 default: 978 res->retcode = IDMAP_ERR_NOTSUPPORTED; 979 break; 980 }; 981 982 if (res->retcode != IDMAP_SUCCESS) { 983 res->error_index = i; 984 if (up->opnum == OP_ADD_NAMERULE || 985 up->opnum == OP_RM_NAMERULE) { 986 idmap_stat r2 = 987 idmap_namerule_cpy(&res->error_rule, 988 &up->idmap_update_op_u.rule); 989 if (r2 != IDMAP_SUCCESS) 990 res->retcode = r2; 991 } 992 goto out; 993 } 994 } 995 996 out: 997 if (trans) { 998 if (res->retcode == IDMAP_SUCCESS) { 999 res->retcode = 1000 sql_exec_no_cb(db, IDMAP_DBNAME, 1001 "COMMIT TRANSACTION;"); 1002 if (res->retcode == IDMAP_SUCCESS) { 1003 /* 1004 * We've updated the rules. Expire the cache 1005 * so that existing mappings will be 1006 * reconsidered. 1007 */ 1008 res->retcode = 1009 idmap_cache_flush(IDMAP_FLUSH_EXPIRE); 1010 } else { 1011 res->error_index = -2; 1012 } 1013 } 1014 else 1015 (void) sql_exec_no_cb(db, IDMAP_DBNAME, 1016 "ROLLBACK TRANSACTION;"); 1017 } 1018 1019 res->retcode = idmap_stat4prot(res->retcode); 1020 1021 return (TRUE); 1022 } 1023 1024 static 1025 int 1026 copy_string(char **to, char *from) 1027 { 1028 if (EMPTY_STRING(from)) { 1029 *to = NULL; 1030 } else { 1031 *to = strdup(from); 1032 if (*to == NULL) { 1033 idmapdlog(LOG_ERR, "Out of memory"); 1034 return (IDMAP_ERR_MEMORY); 1035 } 1036 } 1037 return (IDMAP_SUCCESS); 1038 } 1039 1040 static 1041 int 1042 copy_id(idmap_id *to, idmap_id *from) 1043 { 1044 (void) memset(to, 0, sizeof (*to)); 1045 1046 to->idtype = from->idtype; 1047 if (IS_ID_SID(*from)) { 1048 idmap_retcode retcode; 1049 1050 to->idmap_id_u.sid.rid = from->idmap_id_u.sid.rid; 1051 retcode = copy_string(&to->idmap_id_u.sid.prefix, 1052 from->idmap_id_u.sid.prefix); 1053 1054 return (retcode); 1055 } else { 1056 to->idmap_id_u.uid = from->idmap_id_u.uid; 1057 return (IDMAP_SUCCESS); 1058 } 1059 } 1060 1061 static 1062 int 1063 copy_mapping(idmap_mapping *mapping, idmap_mapping *request) 1064 { 1065 idmap_retcode retcode; 1066 1067 (void) memset(mapping, 0, sizeof (*mapping)); 1068 1069 mapping->flag = request->flag; 1070 mapping->direction = _IDMAP_F_DONE; 1071 1072 retcode = copy_id(&mapping->id1, &request->id1); 1073 if (retcode != IDMAP_SUCCESS) 1074 goto errout; 1075 1076 retcode = copy_string(&mapping->id1domain, request->id1domain); 1077 if (retcode != IDMAP_SUCCESS) 1078 goto errout; 1079 1080 retcode = copy_string(&mapping->id1name, request->id1name); 1081 if (retcode != IDMAP_SUCCESS) 1082 goto errout; 1083 1084 retcode = copy_id(&mapping->id2, &request->id2); 1085 if (retcode != IDMAP_SUCCESS) 1086 goto errout; 1087 1088 retcode = copy_string(&mapping->id2domain, request->id2domain); 1089 if (retcode != IDMAP_SUCCESS) 1090 goto errout; 1091 retcode = copy_string(&mapping->id2name, request->id2name); 1092 if (retcode != IDMAP_SUCCESS) 1093 goto errout; 1094 1095 return (IDMAP_SUCCESS); 1096 1097 errout: 1098 if (IS_ID_SID(mapping->id1)) 1099 free(mapping->id1.idmap_id_u.sid.prefix); 1100 free(mapping->id1domain); 1101 free(mapping->id1name); 1102 if (IS_ID_SID(mapping->id2)) 1103 free(mapping->id2.idmap_id_u.sid.prefix); 1104 free(mapping->id2domain); 1105 free(mapping->id2name); 1106 1107 (void) memset(mapping, 0, sizeof (*mapping)); 1108 return (retcode); 1109 } 1110 1111 1112 /* ARGSUSED */ 1113 bool_t 1114 idmap_get_mapped_id_by_name_1_svc(idmap_mapping request, 1115 idmap_mappings_res *result, struct svc_req *rqstp) 1116 { 1117 idmap_mapping_batch batch_request; 1118 idmap_ids_res batch_result; 1119 idmap_mapping *map; 1120 1121 /* Clear out things we might want to xdr_free on error */ 1122 (void) memset(&batch_result, 0, sizeof (batch_result)); 1123 (void) memset(result, 0, sizeof (*result)); 1124 1125 result->retcode = validate_mapped_id_by_name_req(&request); 1126 if (result->retcode != IDMAP_SUCCESS) 1127 goto out; 1128 1129 /* 1130 * Copy the request. We need to modify it, and 1131 * what we have is a shallow copy. Freeing pointers from 1132 * our copy will lead to problems, since the RPC framework 1133 * has its own copy of those pointers. Besides, we need 1134 * a copy to return. 1135 */ 1136 map = calloc(1, sizeof (idmap_mapping)); 1137 if (map == NULL) { 1138 idmapdlog(LOG_ERR, "Out of memory"); 1139 result->retcode = IDMAP_ERR_MEMORY; 1140 goto out; 1141 } 1142 1143 /* 1144 * Set up to return the filled-in mapping structure. 1145 * Note that we xdr_free result on error, and that'll take 1146 * care of freeing the mapping structure. 1147 */ 1148 result->mappings.mappings_val = map; 1149 result->mappings.mappings_len = 1; 1150 1151 result->retcode = copy_mapping(map, &request); 1152 if (result->retcode != IDMAP_SUCCESS) 1153 goto out; 1154 1155 /* Set up for the request to the batch API */ 1156 batch_request.idmap_mapping_batch_val = map; 1157 batch_request.idmap_mapping_batch_len = 1; 1158 1159 /* Do the real work. */ 1160 (void) idmap_get_mapped_ids_1_svc(batch_request, 1161 &batch_result, rqstp); 1162 1163 /* Copy what we need out of the batch response */ 1164 1165 if (batch_result.retcode != IDMAP_SUCCESS) { 1166 result->retcode = batch_result.retcode; 1167 goto out; 1168 } 1169 1170 result->retcode = copy_id(&map->id2, &batch_result.ids.ids_val[0].id); 1171 if (result->retcode != IDMAP_SUCCESS) 1172 goto out; 1173 1174 map->direction = batch_result.ids.ids_val[0].direction; 1175 1176 result->retcode = batch_result.ids.ids_val[0].retcode; 1177 1178 idmap_info_mov(&map->info, &batch_result.ids.ids_val[0].info); 1179 1180 out: 1181 if (IDMAP_FATAL_ERROR(result->retcode)) { 1182 xdr_free(xdr_idmap_mappings_res, (caddr_t)result); 1183 result->mappings.mappings_len = 0; 1184 result->mappings.mappings_val = NULL; 1185 } 1186 result->retcode = idmap_stat4prot(result->retcode); 1187 1188 xdr_free(xdr_idmap_ids_res, (char *)&batch_result); 1189 1190 return (TRUE); 1191 } 1192 1193 /* ARGSUSED */ 1194 bool_t 1195 idmap_get_prop_1_svc(idmap_prop_type request, 1196 idmap_prop_res *result, struct svc_req *rqstp) 1197 { 1198 idmap_pg_config_t *pgcfg; 1199 1200 /* Init */ 1201 (void) memset(result, 0, sizeof (*result)); 1202 result->retcode = IDMAP_SUCCESS; 1203 result->value.prop = request; 1204 1205 RDLOCK_CONFIG(); 1206 1207 /* Just shortcuts: */ 1208 pgcfg = &_idmapdstate.cfg->pgcfg; 1209 1210 1211 switch (request) { 1212 case PROP_LIST_SIZE_LIMIT: 1213 result->value.idmap_prop_val_u.intval = pgcfg->list_size_limit; 1214 result->auto_discovered = FALSE; 1215 break; 1216 case PROP_DEFAULT_DOMAIN: 1217 result->auto_discovered = FALSE; 1218 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val, 1219 pgcfg->default_domain); 1220 break; 1221 case PROP_DOMAIN_NAME: 1222 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val, 1223 pgcfg->domain_name); 1224 result->auto_discovered = 1225 pgcfg->domain_name_auto_disc; 1226 break; 1227 case PROP_MACHINE_SID: 1228 result->auto_discovered = FALSE; 1229 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val, 1230 pgcfg->machine_sid); 1231 break; 1232 case PROP_DOMAIN_CONTROLLER: 1233 if (pgcfg->domain_controller != NULL) { 1234 (void) memcpy(&result->value.idmap_prop_val_u.dsval, 1235 pgcfg->domain_controller, 1236 sizeof (idmap_ad_disc_ds_t)); 1237 } 1238 result->auto_discovered = pgcfg->domain_controller_auto_disc; 1239 break; 1240 case PROP_FOREST_NAME: 1241 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val, 1242 pgcfg->forest_name); 1243 result->auto_discovered = pgcfg->forest_name_auto_disc; 1244 break; 1245 case PROP_SITE_NAME: 1246 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val, 1247 pgcfg->site_name); 1248 result->auto_discovered = pgcfg->site_name_auto_disc; 1249 break; 1250 case PROP_GLOBAL_CATALOG: 1251 if (pgcfg->global_catalog != NULL) { 1252 (void) memcpy(&result->value.idmap_prop_val_u.dsval, 1253 pgcfg->global_catalog, sizeof (idmap_ad_disc_ds_t)); 1254 } 1255 result->auto_discovered = pgcfg->global_catalog_auto_disc; 1256 break; 1257 case PROP_AD_UNIXUSER_ATTR: 1258 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val, 1259 pgcfg->ad_unixuser_attr); 1260 result->auto_discovered = FALSE; 1261 break; 1262 case PROP_AD_UNIXGROUP_ATTR: 1263 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val, 1264 pgcfg->ad_unixgroup_attr); 1265 result->auto_discovered = FALSE; 1266 break; 1267 case PROP_NLDAP_WINNAME_ATTR: 1268 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val, 1269 pgcfg->nldap_winname_attr); 1270 result->auto_discovered = FALSE; 1271 break; 1272 case PROP_DIRECTORY_BASED_MAPPING: 1273 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val, 1274 enum_lookup(pgcfg->directory_based_mapping, 1275 directory_mapping_map)); 1276 result->auto_discovered = FALSE; 1277 break; 1278 default: 1279 result->retcode = IDMAP_ERR_PROP_UNKNOWN; 1280 break; 1281 } 1282 1283 out: 1284 UNLOCK_CONFIG(); 1285 if (IDMAP_FATAL_ERROR(result->retcode)) { 1286 xdr_free(xdr_idmap_prop_res, (caddr_t)result); 1287 result->value.prop = PROP_UNKNOWN; 1288 } 1289 result->retcode = idmap_stat4prot(result->retcode); 1290 return (TRUE); 1291 } 1292 1293 int 1294 idmap_flush_1_svc( 1295 idmap_flush_op op, 1296 idmap_retcode *result, 1297 struct svc_req *rqstp) 1298 { 1299 NOTE(ARGUNUSED(rqstp)) 1300 if (verify_rules_auth(rqstp) < 0) { 1301 *result = IDMAP_ERR_PERMISSION_DENIED; 1302 return (TRUE); 1303 } 1304 1305 *result = idmap_cache_flush(op); 1306 1307 return (TRUE); 1308 } 1309 1310 /* ARGSUSED */ 1311 int 1312 idmap_prog_1_freeresult(SVCXPRT *transp, xdrproc_t xdr_result, 1313 caddr_t result) 1314 { 1315 xdr_free(xdr_result, result); 1316 return (TRUE); 1317 } 1318 1319 /* 1320 * This function is called by rpc_svc.c when it encounters an error. 1321 */ 1322 NOTE(PRINTFLIKE(1)) 1323 void 1324 idmap_rpc_msgout(const char *fmt, ...) 1325 { 1326 va_list va; 1327 char buf[1000]; 1328 1329 va_start(va, fmt); 1330 (void) vsnprintf(buf, sizeof (buf), fmt, va); 1331 va_end(va); 1332 1333 idmapdlog(LOG_ERR, "idmap RPC: %s", buf); 1334 } 1335