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 * Copyright 2014 Nexenta Systems, Inc. All rights reserved. 24 */ 25 26 /* 27 * Initialization routines 28 */ 29 30 #include "idmapd.h" 31 #include <signal.h> 32 #include <thread.h> 33 #include <string.h> 34 #include <errno.h> 35 #include <assert.h> 36 #include <unistd.h> 37 #include <sys/types.h> 38 #include <sys/stat.h> 39 #include <rpcsvc/daemon_utils.h> 40 41 42 int 43 init_mapping_system() 44 { 45 int rc = 0; 46 47 if ((rc = load_config()) < 0) 48 return (rc); 49 50 (void) setegid(DAEMON_GID); 51 (void) seteuid(DAEMON_UID); 52 if (init_dbs() < 0) { 53 rc = -1; 54 fini_mapping_system(); 55 } 56 (void) seteuid(0); 57 (void) setegid(0); 58 59 return (rc); 60 } 61 62 void 63 fini_mapping_system() 64 { 65 fini_dbs(); 66 } 67 68 int 69 load_config() 70 { 71 int rc; 72 if ((_idmapdstate.cfg = idmap_cfg_init()) == NULL) { 73 degrade_svc(0, "failed to initialize config"); 74 return (-1); 75 } 76 77 rc = idmap_cfg_upgrade(_idmapdstate.cfg); 78 if (rc != 0) { 79 degrade_svc(0, "fatal error while upgrading configuration"); 80 return (rc); 81 } 82 83 rc = idmap_cfg_load(_idmapdstate.cfg, 0); 84 if (rc < -1) { 85 /* Total failure */ 86 degrade_svc(0, "fatal error while loading configuration"); 87 return (rc); 88 } 89 90 if (rc != 0) 91 /* Partial failure */ 92 idmapdlog(LOG_ERR, "Various errors occurred while loading " 93 "the configuration; check the logs"); 94 95 if ((rc = idmap_cfg_start_updates()) < 0) { 96 /* Total failure */ 97 degrade_svc(0, "could not start config updater"); 98 return (rc); 99 } 100 101 if (DBG(CONFIG, 1)) 102 idmapdlog(LOG_DEBUG, "Initial configuration loaded"); 103 104 return (0); 105 } 106 107 108 void 109 reload_gcs() 110 { 111 int i, j; 112 adutils_ad_t **new_gcs; 113 adutils_ad_t **old_gcs = _idmapdstate.gcs; 114 int new_num_gcs; 115 int old_num_gcs = _idmapdstate.num_gcs; 116 idmap_pg_config_t *pgcfg = &_idmapdstate.cfg->pgcfg; 117 idmap_trustedforest_t *trustfor = pgcfg->trusted_forests; 118 int num_trustfor = pgcfg->num_trusted_forests; 119 ad_disc_domainsinforest_t *domain_in_forest; 120 121 if (pgcfg->use_ads == B_FALSE || 122 pgcfg->domain_name == NULL) { 123 /* 124 * ADS disabled, or no domain name specified. 125 * Not using adutils. (but still can use lsa) 126 */ 127 new_gcs = NULL; 128 new_num_gcs = 0; 129 goto out; 130 } 131 132 if (pgcfg->global_catalog == NULL || 133 pgcfg->global_catalog[0].host[0] == '\0') { 134 /* 135 * No GCs. Continue to use the previous AD config in case 136 * that's still good but auto-discovery had a transient failure. 137 * If that stops working we'll go into degraded mode anyways 138 * when it does. 139 */ 140 idmapdlog(LOG_INFO, 141 "Global Catalog servers not configured/discoverable"); 142 return; 143 } 144 145 new_num_gcs = 1 + num_trustfor; 146 new_gcs = calloc(new_num_gcs, sizeof (adutils_ad_t *)); 147 if (new_gcs == NULL) { 148 degrade_svc(0, "could not allocate AD context array " 149 "(out of memory)"); 150 return; 151 } 152 153 if (adutils_ad_alloc(&new_gcs[0], NULL, ADUTILS_AD_GLOBAL_CATALOG) != 154 ADUTILS_SUCCESS) { 155 free(new_gcs); 156 degrade_svc(0, "could not initialize AD context " 157 "(out of memory)"); 158 return; 159 } 160 161 for (i = 0; pgcfg->global_catalog[i].host[0] != '\0'; i++) { 162 if (idmap_add_ds(new_gcs[0], 163 pgcfg->global_catalog[i].host, 164 pgcfg->global_catalog[i].port) != 0) { 165 adutils_ad_free(&new_gcs[0]); 166 free(new_gcs); 167 degrade_svc(0, "could not set AD hosts " 168 "(out of memory)"); 169 return; 170 } 171 } 172 173 if (pgcfg->domains_in_forest != NULL) { 174 for (i = 0; pgcfg->domains_in_forest[i].domain[0] != '\0'; 175 i++) { 176 if (adutils_add_domain(new_gcs[0], 177 pgcfg->domains_in_forest[i].domain, 178 pgcfg->domains_in_forest[i].sid) != 0) { 179 adutils_ad_free(&new_gcs[0]); 180 free(new_gcs); 181 degrade_svc(0, "could not set AD domains " 182 "(out of memory)"); 183 return; 184 } 185 } 186 } 187 188 for (i = 0; i < num_trustfor; i++) { 189 if (adutils_ad_alloc(&new_gcs[i + 1], NULL, 190 ADUTILS_AD_GLOBAL_CATALOG) != ADUTILS_SUCCESS) { 191 degrade_svc(0, "could not initialize trusted AD " 192 "context (out of memory)"); 193 new_num_gcs = i + 1; 194 goto out; 195 } 196 for (j = 0; trustfor[i].global_catalog[j].host[0] != '\0'; 197 j++) { 198 if (idmap_add_ds(new_gcs[i + 1], 199 trustfor[i].global_catalog[j].host, 200 trustfor[i].global_catalog[j].port) != 0) { 201 adutils_ad_free(&new_gcs[i + 1]); 202 degrade_svc(0, "could not set trusted " 203 "AD hosts (out of memory)"); 204 new_num_gcs = i + 1; 205 goto out; 206 } 207 } 208 for (j = 0; trustfor[i].domains_in_forest[j].domain[0] != '\0'; 209 j++) { 210 domain_in_forest = &trustfor[i].domains_in_forest[j]; 211 /* Only add domains which are marked */ 212 if (domain_in_forest->trusted) { 213 if (adutils_add_domain(new_gcs[i + 1], 214 domain_in_forest->domain, 215 domain_in_forest->sid) != 0) { 216 adutils_ad_free(&new_gcs[i + 1]); 217 degrade_svc(0, "could not set trusted " 218 "AD domains (out of memory)"); 219 new_num_gcs = i + 1; 220 goto out; 221 } 222 } 223 } 224 } 225 226 out: 227 _idmapdstate.gcs = new_gcs; 228 _idmapdstate.num_gcs = new_num_gcs; 229 230 if (old_gcs != NULL) { 231 for (i = 0; i < old_num_gcs; i++) 232 adutils_ad_free(&old_gcs[i]); 233 free(old_gcs); 234 } 235 } 236 237 /* 238 * NEEDSWORK: This should load entries for domain servers for all known 239 * domains - the joined domain, other domains in the forest, and trusted 240 * domains in other forests. However, we don't yet discover any DCs other 241 * than the DCs for the joined domain. 242 */ 243 static 244 void 245 reload_dcs(void) 246 { 247 int i; 248 adutils_ad_t **new_dcs; 249 adutils_ad_t **old_dcs = _idmapdstate.dcs; 250 int new_num_dcs; 251 int old_num_dcs = _idmapdstate.num_dcs; 252 idmap_pg_config_t *pgcfg = &_idmapdstate.cfg->pgcfg; 253 254 if (pgcfg->use_ads == B_FALSE || 255 pgcfg->domain_name == NULL) { 256 /* 257 * ADS disabled, or no domain name specified. 258 * Not using adutils. (but still can use lsa) 259 */ 260 new_dcs = NULL; 261 new_num_dcs = 0; 262 goto out; 263 } 264 265 if (pgcfg->domain_controller == NULL || 266 pgcfg->domain_controller[0].host[0] == '\0') { 267 /* 268 * No DCs. Continue to use the previous AD config in case 269 * that's still good but auto-discovery had a transient failure. 270 * If that stops working we'll go into degraded mode anyways 271 * when it does. 272 */ 273 idmapdlog(LOG_INFO, 274 "Domain controller servers not configured/discoverable"); 275 return; 276 } 277 278 new_num_dcs = 1; 279 new_dcs = calloc(new_num_dcs, sizeof (adutils_ad_t *)); 280 if (new_dcs == NULL) 281 goto nomem; 282 283 if (adutils_ad_alloc(&new_dcs[0], pgcfg->domain_name, 284 ADUTILS_AD_DATA) != ADUTILS_SUCCESS) 285 goto nomem; 286 287 for (i = 0; pgcfg->domain_controller[i].host[0] != '\0'; i++) { 288 if (idmap_add_ds(new_dcs[0], 289 pgcfg->domain_controller[i].host, 290 pgcfg->domain_controller[i].port) != 0) 291 goto nomem; 292 } 293 294 /* 295 * NEEDSWORK: All we need here is to add the domain and SID for 296 * this DC to the list of domains supported by this entry. Isn't 297 * there an easier way to find the SID than to walk through the list 298 * of all of the domains in the forest? 299 */ 300 ad_disc_domainsinforest_t *dif = pgcfg->domains_in_forest; 301 if (dif != NULL) { 302 for (; dif->domain[0] != '\0'; dif++) { 303 if (domain_eq(pgcfg->domain_name, dif->domain)) { 304 if (adutils_add_domain(new_dcs[0], 305 dif->domain, dif->sid) != 0) 306 goto nomem; 307 break; 308 } 309 } 310 } 311 312 out: 313 _idmapdstate.dcs = new_dcs; 314 _idmapdstate.num_dcs = new_num_dcs; 315 316 if (old_dcs != NULL) { 317 for (i = 0; i < old_num_dcs; i++) 318 adutils_ad_free(&old_dcs[i]); 319 free(old_dcs); 320 } 321 322 return; 323 324 nomem: 325 degrade_svc(0, "out of memory"); 326 327 if (new_dcs != NULL) { 328 if (new_dcs[0] != NULL) 329 adutils_ad_free(&new_dcs[0]); 330 free(new_dcs); 331 } 332 } 333 334 335 void 336 reload_ad(void) 337 { 338 reload_gcs(); 339 reload_dcs(); 340 } 341 342 void 343 print_idmapdstate(void) 344 { 345 int i, j; 346 idmap_pg_config_t *pgcfg; 347 idmap_trustedforest_t *tf; 348 349 RDLOCK_CONFIG(); 350 351 if (_idmapdstate.cfg == NULL) { 352 idmapdlog(LOG_INFO, "Null configuration"); 353 UNLOCK_CONFIG(); 354 return; 355 } 356 357 pgcfg = &_idmapdstate.cfg->pgcfg; 358 359 idmapdlog(LOG_DEBUG, "list_size_limit=%llu", pgcfg->list_size_limit); 360 idmapdlog(LOG_DEBUG, "default_domain=%s", 361 CHECK_NULL(pgcfg->default_domain)); 362 idmapdlog(LOG_DEBUG, "domain_name=%s", CHECK_NULL(pgcfg->domain_name)); 363 idmapdlog(LOG_DEBUG, "machine_sid=%s", CHECK_NULL(pgcfg->machine_sid)); 364 if (pgcfg->domain_controller == NULL || 365 pgcfg->domain_controller[0].host[0] == '\0') { 366 idmapdlog(LOG_DEBUG, "No domain controllers known"); 367 } else { 368 for (i = 0; pgcfg->domain_controller[i].host[0] != '\0'; i++) 369 idmapdlog(LOG_DEBUG, "domain_controller=%s port=%d", 370 pgcfg->domain_controller[i].host, 371 pgcfg->domain_controller[i].port); 372 } 373 idmapdlog(LOG_DEBUG, "forest_name=%s", CHECK_NULL(pgcfg->forest_name)); 374 idmapdlog(LOG_DEBUG, "site_name=%s", CHECK_NULL(pgcfg->site_name)); 375 if (pgcfg->global_catalog == NULL || 376 pgcfg->global_catalog[0].host[0] == '\0') { 377 idmapdlog(LOG_DEBUG, "No global catalog servers known"); 378 } else { 379 for (i = 0; pgcfg->global_catalog[i].host[0] != '\0'; i++) 380 idmapdlog(LOG_DEBUG, "global_catalog=%s port=%d", 381 pgcfg->global_catalog[i].host, 382 pgcfg->global_catalog[i].port); 383 } 384 if (pgcfg->domains_in_forest == NULL || 385 pgcfg->domains_in_forest[0].domain[0] == '\0') { 386 idmapdlog(LOG_DEBUG, "No domains in forest %s known", 387 CHECK_NULL(pgcfg->forest_name)); 388 } else { 389 for (i = 0; pgcfg->domains_in_forest[i].domain[0] != '\0'; i++) 390 idmapdlog(LOG_DEBUG, "domains in forest %s = %s", 391 CHECK_NULL(pgcfg->forest_name), 392 pgcfg->domains_in_forest[i].domain); 393 } 394 if (pgcfg->trusted_domains == NULL || 395 pgcfg->trusted_domains[0].domain[0] == '\0') { 396 idmapdlog(LOG_DEBUG, "No trusted domains known"); 397 } else { 398 for (i = 0; pgcfg->trusted_domains[i].domain[0] != '\0'; i++) 399 idmapdlog(LOG_DEBUG, "trusted domain = %s", 400 pgcfg->trusted_domains[i].domain); 401 } 402 403 for (i = 0; i < pgcfg->num_trusted_forests; i++) { 404 tf = &pgcfg->trusted_forests[i]; 405 for (j = 0; tf->global_catalog[j].host[0] != '\0'; j++) 406 idmapdlog(LOG_DEBUG, 407 "trusted forest %s global_catalog=%s port=%d", 408 tf->forest_name, 409 tf->global_catalog[j].host, 410 tf->global_catalog[j].port); 411 for (j = 0; tf->domains_in_forest[j].domain[0] != '\0'; j++) { 412 if (tf->domains_in_forest[j].trusted) { 413 idmapdlog(LOG_DEBUG, 414 "trusted forest %s domain=%s", 415 tf->forest_name, 416 tf->domains_in_forest[j].domain); 417 } 418 } 419 } 420 421 idmapdlog(LOG_DEBUG, "directory_based_mapping=%s", 422 enum_lookup(pgcfg->directory_based_mapping, directory_mapping_map)); 423 idmapdlog(LOG_DEBUG, "ad_unixuser_attr=%s", 424 CHECK_NULL(pgcfg->ad_unixuser_attr)); 425 idmapdlog(LOG_DEBUG, "ad_unixgroup_attr=%s", 426 CHECK_NULL(pgcfg->ad_unixgroup_attr)); 427 idmapdlog(LOG_DEBUG, "nldap_winname_attr=%s", 428 CHECK_NULL(pgcfg->nldap_winname_attr)); 429 430 UNLOCK_CONFIG(); 431 } 432 433 int 434 create_directory(const char *path, uid_t uid, gid_t gid) 435 { 436 int rc; 437 438 if ((rc = mkdir(path, 0700)) < 0 && errno != EEXIST) { 439 idmapdlog(LOG_ERR, "Error creating directory %s (%s)", 440 path, strerror(errno)); 441 return (-1); 442 } 443 444 if (lchown(path, uid, gid) < 0) { 445 idmapdlog(LOG_ERR, "Error creating directory %s (%s)", 446 path, strerror(errno)); 447 if (rc == 0) 448 (void) rmdir(path); 449 return (-1); 450 } 451 return (0); 452 } 453