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 /* 23 * Copyright 2010 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* 28 * Information about well-known (builtin) names, and functions to retrieve 29 * information about them. 30 */ 31 32 #include <assert.h> 33 #include <string.h> 34 #include "idmapd.h" 35 #include "miscutils.h" 36 37 /* 38 * Table for well-known SIDs. 39 * 40 * Background: 41 * 42 * Some of the well-known principals are stored under: 43 * cn=WellKnown Security Principals, cn=Configuration, dc=<forestRootDomain> 44 * They belong to objectClass "foreignSecurityPrincipal". They don't have 45 * "samAccountName" nor "userPrincipalName" attributes. Their names are 46 * available in "cn" and "name" attributes. Some of these principals have a 47 * second entry under CN=ForeignSecurityPrincipals,dc=<forestRootDomain> and 48 * these duplicate entries have the stringified SID in the "name" and "cn" 49 * attributes instead of the actual name. 50 * 51 * Those of the form S-1-5-32-X are Builtin groups and are stored in the 52 * cn=builtin container (except, Power Users which is not stored in AD) 53 * 54 * These principals are and will remain constant. Therefore doing AD lookups 55 * provides no benefit. Also, using hard-coded table (and thus avoiding AD 56 * lookup) improves performance and avoids additional complexity in the 57 * adutils.c code. Moreover these SIDs can be used when no Active Directory 58 * is available (such as the CIFS server's "workgroup" mode). 59 * 60 * Notes: 61 * 1. Currently we don't support localization of well-known SID names, 62 * unlike Windows. 63 * 64 * 2. Other well-known SIDs i.e. S-1-5-<domain>-<w-k RID> are not stored 65 * here. AD does have normal user/group objects for these objects and 66 * can be looked up using the existing AD lookup code. 67 * 68 * 3. See comments above lookup_wksids_sid2pid() for more information 69 * on how we lookup the wksids table. 70 * 71 * 4. If this table contains two entries for a particular Windows name, 72 * so as to offer both UID and GID mappings, the preferred mapping (the 73 * one that matches Windows usage) must be listed first. That is the 74 * entry that will be used when the caller specifies IDMAP_POSIXID 75 * ("don't care") as the target. 76 * 77 * Entries here come from KB243330, MS-LSAT, and 78 * http://technet.microsoft.com/en-us/library/cc755854.aspx 79 * http://technet.microsoft.com/en-us/library/cc755925.aspx 80 * http://msdn.microsoft.com/en-us/library/cc980032(PROT.10).aspx 81 */ 82 static wksids_table_t wksids[] = { 83 /* S-1-0 Null Authority */ 84 {"S-1-0", 0, "", "Nobody", 1, IDMAP_SENTINEL_PID, -1, 1}, 85 86 /* S-1-1 World Authority */ 87 {"S-1-1", 0, "", "Everyone", 0, IDMAP_SENTINEL_PID, -1, -1}, 88 89 /* S-1-2 Local Authority */ 90 {"S-1-2", 0, "", "Local", 0, IDMAP_SENTINEL_PID, -1, -1}, 91 {"S-1-2", 1, "", "Console Logon", 0, IDMAP_SENTINEL_PID, -1, -1}, 92 93 /* S-1-3 Creator Authority */ 94 {"S-1-3", 0, "", "Creator Owner", 1, IDMAP_WK_CREATOR_OWNER_UID, 1, 0}, 95 {"S-1-3", 1, "", "Creator Group", 0, IDMAP_WK_CREATOR_GROUP_GID, 0, 0}, 96 {"S-1-3", 2, "", "Creator Owner Server", 1, IDMAP_SENTINEL_PID, -1, -1}, 97 {"S-1-3", 3, "", "Creator Group Server", 0, IDMAP_SENTINEL_PID, -1, 1}, 98 {"S-1-3", 4, "", "Owner Rights", 0, IDMAP_SENTINEL_PID, -1, -1}, 99 100 /* S-1-4 Non-unique Authority */ 101 102 /* S-1-5 NT Authority */ 103 {"S-1-5", 1, "", "Dialup", 0, IDMAP_SENTINEL_PID, -1, -1}, 104 {"S-1-5", 2, "", "Network", 0, IDMAP_SENTINEL_PID, -1, -1}, 105 {"S-1-5", 3, "", "Batch", 0, IDMAP_SENTINEL_PID, -1, -1}, 106 {"S-1-5", 4, "", "Interactive", 0, IDMAP_SENTINEL_PID, -1, -1}, 107 /* S-1-5-5-X-Y Logon Session */ 108 {"S-1-5", 6, "", "Service", 0, IDMAP_SENTINEL_PID, -1, -1}, 109 {"S-1-5", 7, "", "Anonymous Logon", 0, GID_NOBODY, 0, 0}, 110 {"S-1-5", 7, "", "Anonymous Logon", 0, UID_NOBODY, 1, 0}, 111 {"S-1-5", 8, "", "Proxy", 0, IDMAP_SENTINEL_PID, -1, -1}, 112 {"S-1-5", 9, "", "Enterprise Domain Controllers", 0, 113 IDMAP_SENTINEL_PID, -1, -1}, 114 {"S-1-5", 10, "", "Self", 0, IDMAP_SENTINEL_PID, -1, -1}, 115 {"S-1-5", 11, "", "Authenticated Users", 0, IDMAP_SENTINEL_PID, -1, -1}, 116 {"S-1-5", 12, "", "Restricted", 0, IDMAP_SENTINEL_PID, -1, -1}, 117 {"S-1-5", 13, "", "Terminal Server Users", 0, 118 IDMAP_SENTINEL_PID, -1, -1}, 119 {"S-1-5", 14, "", "Remote Interactive Logon", 0, 120 IDMAP_SENTINEL_PID, -1, -1}, 121 {"S-1-5", 15, "", "This Organization", 0, IDMAP_SENTINEL_PID, -1, -1}, 122 {"S-1-5", 17, "", "IUSR", 0, IDMAP_SENTINEL_PID, -1, -1}, 123 {"S-1-5", 18, "", "Local System", 0, IDMAP_WK_LOCAL_SYSTEM_GID, 0, 0}, 124 {"S-1-5", 19, "", "Local Service", 0, IDMAP_SENTINEL_PID, -1, -1}, 125 {"S-1-5", 20, "", "Network Service", 0, IDMAP_SENTINEL_PID, -1, -1}, 126 127 /* S-1-5-21-<domain> Machine-local definitions */ 128 {NULL, 498, NULL, "Enterprise Read-only Domain Controllers", 0, 129 IDMAP_SENTINEL_PID, -1, -1}, 130 {NULL, 500, NULL, "Administrator", 1, IDMAP_SENTINEL_PID, 1, -1}, 131 {NULL, 501, NULL, "Guest", 1, IDMAP_SENTINEL_PID, 1, -1}, 132 {NULL, 502, NULL, "KRBTGT", 1, IDMAP_SENTINEL_PID, 1, -1}, 133 {NULL, 512, NULL, "Domain Admins", 0, IDMAP_SENTINEL_PID, -1, -1}, 134 {NULL, 513, NULL, "Domain Users", 0, IDMAP_SENTINEL_PID, -1, -1}, 135 {NULL, 514, NULL, "Domain Guests", 0, IDMAP_SENTINEL_PID, -1, -1}, 136 {NULL, 515, NULL, "Domain Computers", 0, IDMAP_SENTINEL_PID, -1, -1}, 137 {NULL, 516, NULL, "Domain Controllers", 0, IDMAP_SENTINEL_PID, -1, -1}, 138 {NULL, 517, NULL, "Cert Publishers", 0, IDMAP_SENTINEL_PID, -1, -1}, 139 {NULL, 518, NULL, "Schema Admins", 0, IDMAP_SENTINEL_PID, -1, -1}, 140 {NULL, 519, NULL, "Enterprise Admins", 0, IDMAP_SENTINEL_PID, -1, -1}, 141 {NULL, 520, NULL, "Global Policy Creator Owners", 0, 142 IDMAP_SENTINEL_PID, -1, -1}, 143 {NULL, 533, NULL, "RAS and IAS Servers", 0, IDMAP_SENTINEL_PID, -1, -1}, 144 145 /* S-1-5-32 BUILTIN */ 146 {"S-1-5-32", 544, "BUILTIN", "Administrators", 0, 147 IDMAP_SENTINEL_PID, -1, -1}, 148 {"S-1-5-32", 545, "BUILTIN", "Users", 0, IDMAP_SENTINEL_PID, -1, -1}, 149 {"S-1-5-32", 546, "BUILTIN", "Guests", 0, IDMAP_SENTINEL_PID, -1, -1}, 150 {"S-1-5-32", 547, "BUILTIN", "Power Users", 0, 151 IDMAP_SENTINEL_PID, -1, -1}, 152 {"S-1-5-32", 548, "BUILTIN", "Account Operators", 0, 153 IDMAP_SENTINEL_PID, -1, -1}, 154 {"S-1-5-32", 549, "BUILTIN", "Server Operators", 0, 155 IDMAP_SENTINEL_PID, -1, -1}, 156 {"S-1-5-32", 550, "BUILTIN", "Print Operators", 0, 157 IDMAP_SENTINEL_PID, -1, -1}, 158 {"S-1-5-32", 551, "BUILTIN", "Backup Operators", 0, 159 IDMAP_SENTINEL_PID, -1, -1}, 160 {"S-1-5-32", 552, "BUILTIN", "Replicator", 0, 161 IDMAP_SENTINEL_PID, -1, -1}, 162 {"S-1-5-32", 554, "BUILTIN", "Pre-Windows 2000 Compatible Access", 0, 163 IDMAP_SENTINEL_PID, -1, -1}, 164 {"S-1-5-32", 555, "BUILTIN", "Remote Desktop Users", 0, 165 IDMAP_SENTINEL_PID, -1, -1}, 166 {"S-1-5-32", 556, "BUILTIN", "Network Configuration Operators", 0, 167 IDMAP_SENTINEL_PID, -1, -1}, 168 {"S-1-5-32", 557, "BUILTIN", "Incoming Forest Trust Builders", 0, 169 IDMAP_SENTINEL_PID, -1, -1}, 170 {"S-1-5-32", 558, "BUILTIN", "Performance Monitor Users", 0, 171 IDMAP_SENTINEL_PID, -1, -1}, 172 {"S-1-5-32", 559, "BUILTIN", "Performance Log Users", 0, 173 IDMAP_SENTINEL_PID, -1, -1}, 174 {"S-1-5-32", 560, "BUILTIN", "Windows Authorization Access Group", 0, 175 IDMAP_SENTINEL_PID, -1, -1}, 176 {"S-1-5-32", 561, "BUILTIN", "Terminal Server License Servers", 0, 177 IDMAP_SENTINEL_PID, -1, -1}, 178 {"S-1-5-32", 562, "BUILTIN", "Distributed COM Users", 0, 179 IDMAP_SENTINEL_PID, -1, -1}, 180 {"S-1-5-32", 568, "BUILTIN", "IIS_IUSRS", 0, 181 IDMAP_SENTINEL_PID, -1, -1}, 182 {"S-1-5-32", 569, "BUILTIN", "Cryptographic Operators", 0, 183 IDMAP_SENTINEL_PID, -1, -1}, 184 {"S-1-5-32", 573, "BUILTIN", "Event Log Readers", 0, 185 IDMAP_SENTINEL_PID, -1, -1}, 186 {"S-1-5-32", 574, "BUILTIN", "Certificate Service DCOM Access", 0, 187 IDMAP_SENTINEL_PID, -1, -1}, 188 189 {"S-1-5", 33, "", "Write Restricted", 0, IDMAP_SENTINEL_PID, -1, -1}, 190 191 /* S-1-5-64 NT Authority */ 192 {"S-1-5-64", 10, "", "NTLM Authentication", 0, 193 IDMAP_SENTINEL_PID, -1, -1}, 194 {"S-1-5-64", 14, "", "SChannel Authentication", 0, 195 IDMAP_SENTINEL_PID, -1, -1}, 196 {"S-1-5-64", 21, "", "Digest Authentication", 0, 197 IDMAP_SENTINEL_PID, -1, -1}, 198 199 /* S-1-5-80-a-b-c-d NT Service */ 200 201 {"S-1-5", 1000, "", "Other Organization", 0, 202 IDMAP_SENTINEL_PID, -1, -1}, 203 204 /* S-1-7 Internet$ */ 205 206 /* 207 * S-1-16 Mandatory Label 208 * S-1-16-0 Untrusted Mandatory Level 209 * S-1-16-4096 Low Mandatory Level 210 * S-1-16-8192 Medium Mandatory Level 211 * S-1-16-8448 Medium Plus Mandatory Level 212 * S-1-16-12288 High Mandatory Level 213 * S-1-16-16384 System Mandatory Level 214 * S-1-16-20480 Protected Process Mandatory Level 215 */ 216 }; 217 218 /* 219 * Find a wksid entry for the specified Windows name and domain, of the 220 * specified type. 221 * 222 * Ignore entries intended only for U2W use. 223 */ 224 const 225 wksids_table_t * 226 find_wksid_by_name(const char *name, const char *domain, int type) 227 { 228 int i; 229 230 RDLOCK_CONFIG(); 231 int len = strlen(_idmapdstate.hostname); 232 char my_host_name[len + 1]; 233 (void) strcpy(my_host_name, _idmapdstate.hostname); 234 UNLOCK_CONFIG(); 235 236 for (i = 0; i < NELEM(wksids); i++) { 237 /* Check to see if this entry yields the desired type */ 238 switch (type) { 239 case IDMAP_UID: 240 if (wksids[i].is_user == 0) 241 continue; 242 break; 243 case IDMAP_GID: 244 if (wksids[i].is_user == 1) 245 continue; 246 break; 247 case IDMAP_POSIXID: 248 break; 249 default: 250 assert(FALSE); 251 } 252 253 if (strcasecmp(wksids[i].winname, name) != 0) 254 continue; 255 256 if (!EMPTY_STRING(domain)) { 257 const char *dom; 258 259 if (wksids[i].domain != NULL) { 260 dom = wksids[i].domain; 261 } else { 262 dom = my_host_name; 263 } 264 if (strcasecmp(dom, domain) != 0) 265 continue; 266 } 267 268 /* 269 * We have a Windows name, so ignore entries that are only 270 * usable for mapping UNIX->Windows. (Note: the current 271 * table does not have any such entries.) 272 */ 273 if (wksids[i].direction == IDMAP_DIRECTION_U2W) 274 continue; 275 276 return (&wksids[i]); 277 } 278 279 return (NULL); 280 } 281 282 /* 283 * Find a wksid entry for the specified SID, of the specified type. 284 * 285 * Ignore entries intended only for U2W use. 286 */ 287 const 288 wksids_table_t * 289 find_wksid_by_sid(const char *sid, int rid, int type) 290 { 291 int i; 292 293 RDLOCK_CONFIG(); 294 int len = strlen(_idmapdstate.cfg->pgcfg.machine_sid); 295 char my_machine_sid[len + 1]; 296 (void) strcpy(my_machine_sid, _idmapdstate.cfg->pgcfg.machine_sid); 297 UNLOCK_CONFIG(); 298 299 for (i = 0; i < NELEM(wksids); i++) { 300 int sidcmp; 301 302 /* Check to see if this entry yields the desired type */ 303 switch (type) { 304 case IDMAP_UID: 305 if (wksids[i].is_user == 0) 306 continue; 307 break; 308 case IDMAP_GID: 309 if (wksids[i].is_user == 1) 310 continue; 311 break; 312 case IDMAP_POSIXID: 313 break; 314 default: 315 assert(FALSE); 316 } 317 318 if (wksids[i].sidprefix != NULL) { 319 sidcmp = strcasecmp(wksids[i].sidprefix, sid); 320 } else { 321 sidcmp = strcasecmp(my_machine_sid, sid); 322 } 323 324 if (sidcmp != 0) 325 continue; 326 if (wksids[i].rid != rid) 327 continue; 328 329 /* 330 * We have a SID, so ignore entries that are only usable 331 * for mapping UNIX->Windows. (Note: the current table 332 * does not have any such entries.) 333 */ 334 if (wksids[i].direction == IDMAP_DIRECTION_U2W) 335 continue; 336 337 return (&wksids[i]); 338 } 339 340 return (NULL); 341 } 342 343 /* 344 * Find a wksid entry for the specified pid, of the specified type. 345 * Ignore entries that do not specify U2W mappings. 346 */ 347 const 348 wksids_table_t * 349 find_wksid_by_pid(uid_t pid, int is_user) 350 { 351 int i; 352 353 if (pid == IDMAP_SENTINEL_PID) 354 return (NULL); 355 356 for (i = 0; i < NELEM(wksids); i++) { 357 if (wksids[i].pid == pid && 358 wksids[i].is_user == is_user && 359 (wksids[i].direction == IDMAP_DIRECTION_BI || 360 wksids[i].direction == IDMAP_DIRECTION_U2W)) { 361 return (&wksids[i]); 362 } 363 } 364 return (NULL); 365 } 366 367 /* 368 * It is probably a bug that both this and find_wksid_by_sid exist, 369 * but for now the distinction is primarily that one takes {machinesid,rid} 370 * and the other takes a full SID. 371 */ 372 const 373 wksids_table_t * 374 find_wk_by_sid(char *sid) 375 { 376 int i; 377 378 RDLOCK_CONFIG(); 379 int len = strlen(_idmapdstate.cfg->pgcfg.machine_sid); 380 char my_machine_sid[len + 1]; 381 (void) strcpy(my_machine_sid, _idmapdstate.cfg->pgcfg.machine_sid); 382 UNLOCK_CONFIG(); 383 384 for (i = 0; i < NELEM(wksids); i++) { 385 int len; 386 const char *prefix; 387 char *p; 388 unsigned long rid; 389 390 if (wksids[i].sidprefix == NULL) 391 prefix = my_machine_sid; 392 else 393 prefix = wksids[i].sidprefix; 394 395 len = strlen(prefix); 396 397 /* 398 * Check to see whether the SID we're looking for starts 399 * with this prefix, then a -, then a single RID, and it's 400 * the right RID. 401 */ 402 if (strncasecmp(sid, prefix, len) != 0) 403 continue; 404 if (sid[len] != '-') 405 continue; 406 rid = strtoul(sid + len + 1, &p, 10); 407 if (*p != '\0') 408 continue; 409 410 if (rid != wksids[i].rid) 411 continue; 412 413 return (&wksids[i]); 414 } 415 return (NULL); 416 } 417