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 2018 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(void) 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(void) 64 { 65 fini_dbs(); 66 } 67 68 int 69 load_config(void) 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(void) 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 void 244 reload_dcs(void) 245 { 246 int i; 247 adutils_ad_t **new_dcs; 248 adutils_ad_t **old_dcs = _idmapdstate.dcs; 249 int new_num_dcs; 250 int old_num_dcs = _idmapdstate.num_dcs; 251 idmap_pg_config_t *pgcfg = &_idmapdstate.cfg->pgcfg; 252 253 if (pgcfg->use_ads == B_FALSE || 254 pgcfg->domain_name == NULL) { 255 /* 256 * ADS disabled, or no domain name specified. 257 * Not using adutils. (but still can use lsa) 258 */ 259 new_dcs = NULL; 260 new_num_dcs = 0; 261 goto out; 262 } 263 264 if (pgcfg->domain_controller == NULL || 265 pgcfg->domain_controller[0].host[0] == '\0') { 266 /* 267 * No DCs. Continue to use the previous AD config in case 268 * that's still good but auto-discovery had a transient failure. 269 * If that stops working we'll go into degraded mode anyways 270 * when it does. 271 */ 272 idmapdlog(LOG_INFO, 273 "Domain controller servers not configured/discoverable"); 274 return; 275 } 276 277 new_num_dcs = 1; 278 new_dcs = calloc(new_num_dcs, sizeof (adutils_ad_t *)); 279 if (new_dcs == NULL) 280 goto nomem; 281 282 if (adutils_ad_alloc(&new_dcs[0], pgcfg->domain_name, 283 ADUTILS_AD_DATA) != ADUTILS_SUCCESS) 284 goto nomem; 285 286 for (i = 0; pgcfg->domain_controller[i].host[0] != '\0'; i++) { 287 if (idmap_add_ds(new_dcs[0], 288 pgcfg->domain_controller[i].host, 289 pgcfg->domain_controller[i].port) != 0) 290 goto nomem; 291 } 292 293 /* 294 * NEEDSWORK: All we need here is to add the domain and SID for 295 * this DC to the list of domains supported by this entry. Isn't 296 * there an easier way to find the SID than to walk through the list 297 * of all of the domains in the forest? 298 */ 299 ad_disc_domainsinforest_t *dif = pgcfg->domains_in_forest; 300 if (dif != NULL) { 301 for (; dif->domain[0] != '\0'; dif++) { 302 if (domain_eq(pgcfg->domain_name, dif->domain)) { 303 if (adutils_add_domain(new_dcs[0], 304 dif->domain, dif->sid) != 0) 305 goto nomem; 306 break; 307 } 308 } 309 } 310 311 out: 312 _idmapdstate.dcs = new_dcs; 313 _idmapdstate.num_dcs = new_num_dcs; 314 315 if (old_dcs != NULL) { 316 for (i = 0; i < old_num_dcs; i++) 317 adutils_ad_free(&old_dcs[i]); 318 free(old_dcs); 319 } 320 321 return; 322 323 nomem: 324 degrade_svc(0, "out of memory"); 325 326 if (new_dcs != NULL) { 327 if (new_dcs[0] != NULL) 328 adutils_ad_free(&new_dcs[0]); 329 free(new_dcs); 330 } 331 } 332 333 void 334 print_idmapdstate(void) 335 { 336 int i, j; 337 idmap_pg_config_t *pgcfg; 338 idmap_trustedforest_t *tf; 339 340 RDLOCK_CONFIG(); 341 342 if (_idmapdstate.cfg == NULL) { 343 idmapdlog(LOG_INFO, "Null configuration"); 344 UNLOCK_CONFIG(); 345 return; 346 } 347 348 pgcfg = &_idmapdstate.cfg->pgcfg; 349 350 idmapdlog(LOG_DEBUG, "list_size_limit=%llu", pgcfg->list_size_limit); 351 idmapdlog(LOG_DEBUG, "max_threads=%llu", pgcfg->max_threads); 352 idmapdlog(LOG_DEBUG, "default_domain=%s", 353 CHECK_NULL(pgcfg->default_domain)); 354 idmapdlog(LOG_DEBUG, "domain_name=%s", CHECK_NULL(pgcfg->domain_name)); 355 idmapdlog(LOG_DEBUG, "machine_sid=%s", CHECK_NULL(pgcfg->machine_sid)); 356 if (pgcfg->domain_controller == NULL || 357 pgcfg->domain_controller[0].host[0] == '\0') { 358 idmapdlog(LOG_DEBUG, "No domain controllers known"); 359 } else { 360 for (i = 0; pgcfg->domain_controller[i].host[0] != '\0'; i++) 361 idmapdlog(LOG_DEBUG, "domain_controller=%s port=%d", 362 pgcfg->domain_controller[i].host, 363 pgcfg->domain_controller[i].port); 364 } 365 idmapdlog(LOG_DEBUG, "forest_name=%s", CHECK_NULL(pgcfg->forest_name)); 366 idmapdlog(LOG_DEBUG, "site_name=%s", CHECK_NULL(pgcfg->site_name)); 367 if (pgcfg->global_catalog == NULL || 368 pgcfg->global_catalog[0].host[0] == '\0') { 369 idmapdlog(LOG_DEBUG, "No global catalog servers known"); 370 } else { 371 for (i = 0; pgcfg->global_catalog[i].host[0] != '\0'; i++) 372 idmapdlog(LOG_DEBUG, "global_catalog=%s port=%d", 373 pgcfg->global_catalog[i].host, 374 pgcfg->global_catalog[i].port); 375 } 376 if (pgcfg->domains_in_forest == NULL || 377 pgcfg->domains_in_forest[0].domain[0] == '\0') { 378 idmapdlog(LOG_DEBUG, "No domains in forest %s known", 379 CHECK_NULL(pgcfg->forest_name)); 380 } else { 381 for (i = 0; pgcfg->domains_in_forest[i].domain[0] != '\0'; i++) 382 idmapdlog(LOG_DEBUG, "domains in forest %s = %s", 383 CHECK_NULL(pgcfg->forest_name), 384 pgcfg->domains_in_forest[i].domain); 385 } 386 if (pgcfg->trusted_domains == NULL || 387 pgcfg->trusted_domains[0].domain[0] == '\0') { 388 idmapdlog(LOG_DEBUG, "No trusted domains known"); 389 } else { 390 for (i = 0; pgcfg->trusted_domains[i].domain[0] != '\0'; i++) 391 idmapdlog(LOG_DEBUG, "trusted domain = %s", 392 pgcfg->trusted_domains[i].domain); 393 } 394 395 for (i = 0; i < pgcfg->num_trusted_forests; i++) { 396 tf = &pgcfg->trusted_forests[i]; 397 for (j = 0; tf->global_catalog[j].host[0] != '\0'; j++) 398 idmapdlog(LOG_DEBUG, 399 "trusted forest %s global_catalog=%s port=%d", 400 tf->forest_name, 401 tf->global_catalog[j].host, 402 tf->global_catalog[j].port); 403 for (j = 0; tf->domains_in_forest[j].domain[0] != '\0'; j++) { 404 if (tf->domains_in_forest[j].trusted) { 405 idmapdlog(LOG_DEBUG, 406 "trusted forest %s domain=%s", 407 tf->forest_name, 408 tf->domains_in_forest[j].domain); 409 } 410 } 411 } 412 413 idmapdlog(LOG_DEBUG, "directory_based_mapping=%s", 414 enum_lookup(pgcfg->directory_based_mapping, directory_mapping_map)); 415 idmapdlog(LOG_DEBUG, "ad_unixuser_attr=%s", 416 CHECK_NULL(pgcfg->ad_unixuser_attr)); 417 idmapdlog(LOG_DEBUG, "ad_unixgroup_attr=%s", 418 CHECK_NULL(pgcfg->ad_unixgroup_attr)); 419 idmapdlog(LOG_DEBUG, "nldap_winname_attr=%s", 420 CHECK_NULL(pgcfg->nldap_winname_attr)); 421 422 UNLOCK_CONFIG(); 423 } 424 425 int 426 create_directory(const char *path, uid_t uid, gid_t gid) 427 { 428 int rc; 429 430 if ((rc = mkdir(path, 0700)) < 0 && errno != EEXIST) { 431 idmapdlog(LOG_ERR, "Error creating directory %s (%s)", 432 path, strerror(errno)); 433 return (-1); 434 } 435 436 if (lchown(path, uid, gid) < 0) { 437 idmapdlog(LOG_ERR, "Error creating directory %s (%s)", 438 path, strerror(errno)); 439 if (rc == 0) 440 (void) rmdir(path); 441 return (-1); 442 } 443 return (0); 444 } 445