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 2009 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, SENTINEL_PID, -1, 1}, 85 86 /* S-1-1 World Authority */ 87 {"S-1-1", 0, "", "Everyone", 0, SENTINEL_PID, -1, -1}, 88 89 /* S-1-2 Local Authority */ 90 {"S-1-2", 0, "", "Local", 0, SENTINEL_PID, -1, -1}, 91 {"S-1-2", 1, "", "Console Logon", 0, 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, SENTINEL_PID, -1, -1}, 97 {"S-1-3", 3, "", "Creator Group Server", 0, SENTINEL_PID, -1, 1}, 98 {"S-1-3", 4, "", "Owner Rights", 0, 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, SENTINEL_PID, -1, -1}, 104 {"S-1-5", 2, "", "Network", 0, SENTINEL_PID, -1, -1}, 105 {"S-1-5", 3, "", "Batch", 0, SENTINEL_PID, -1, -1}, 106 {"S-1-5", 4, "", "Interactive", 0, SENTINEL_PID, -1, -1}, 107 /* S-1-5-5-X-Y Logon Session */ 108 {"S-1-5", 6, "", "Service", 0, 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, SENTINEL_PID, -1, -1}, 112 {"S-1-5", 9, "", "Enterprise Domain Controllers", 0, 113 SENTINEL_PID, -1, -1}, 114 {"S-1-5", 10, "", "Self", 0, SENTINEL_PID, -1, -1}, 115 {"S-1-5", 11, "", "Authenticated Users", 0, SENTINEL_PID, -1, -1}, 116 {"S-1-5", 12, "", "Restricted", 0, SENTINEL_PID, -1, -1}, 117 {"S-1-5", 13, "", "Terminal Server Users", 0, SENTINEL_PID, -1, -1}, 118 {"S-1-5", 14, "", "Remote Interactive Logon", 0, SENTINEL_PID, -1, -1}, 119 {"S-1-5", 15, "", "This Organization", 0, SENTINEL_PID, -1, -1}, 120 {"S-1-5", 17, "", "IUSR", 0, SENTINEL_PID, -1, -1}, 121 {"S-1-5", 18, "", "Local System", 0, IDMAP_WK_LOCAL_SYSTEM_GID, 0, 0}, 122 {"S-1-5", 19, "", "Local Service", 0, SENTINEL_PID, -1, -1}, 123 {"S-1-5", 20, "", "Network Service", 0, SENTINEL_PID, -1, -1}, 124 125 /* S-1-5-21-<domain> Machine-local definitions */ 126 {NULL, 498, NULL, "Enterprise Read-only Domain Controllers", 0, 127 SENTINEL_PID, -1, -1}, 128 {NULL, 500, NULL, "Administrator", 1, SENTINEL_PID, 1, -1}, 129 {NULL, 501, NULL, "Guest", 1, SENTINEL_PID, 1, -1}, 130 {NULL, 502, NULL, "KRBTGT", 1, SENTINEL_PID, 1, -1}, 131 {NULL, 512, NULL, "Domain Admins", 0, SENTINEL_PID, -1, -1}, 132 {NULL, 513, NULL, "Domain Users", 0, SENTINEL_PID, -1, -1}, 133 {NULL, 514, NULL, "Domain Guests", 0, SENTINEL_PID, -1, -1}, 134 {NULL, 515, NULL, "Domain Computers", 0, SENTINEL_PID, -1, -1}, 135 {NULL, 516, NULL, "Domain Controllers", 0, SENTINEL_PID, -1, -1}, 136 {NULL, 517, NULL, "Cert Publishers", 0, SENTINEL_PID, -1, -1}, 137 {NULL, 518, NULL, "Schema Admins", 0, SENTINEL_PID, -1, -1}, 138 {NULL, 519, NULL, "Enterprise Admins", 0, SENTINEL_PID, -1, -1}, 139 {NULL, 520, NULL, "Global Policy Creator Owners", 0, 140 SENTINEL_PID, -1, -1}, 141 {NULL, 533, NULL, "RAS and IAS Servers", 0, SENTINEL_PID, -1, -1}, 142 143 /* S-1-5-32 BUILTIN */ 144 {"S-1-5-32", 544, "BUILTIN", "Administrators", 0, SENTINEL_PID, -1, -1}, 145 {"S-1-5-32", 545, "BUILTIN", "Users", 0, SENTINEL_PID, -1, -1}, 146 {"S-1-5-32", 546, "BUILTIN", "Guests", 0, SENTINEL_PID, -1, -1}, 147 {"S-1-5-32", 547, "BUILTIN", "Power Users", 0, SENTINEL_PID, -1, -1}, 148 {"S-1-5-32", 548, "BUILTIN", "Account Operators", 0, 149 SENTINEL_PID, -1, -1}, 150 {"S-1-5-32", 549, "BUILTIN", "Server Operators", 0, 151 SENTINEL_PID, -1, -1}, 152 {"S-1-5-32", 550, "BUILTIN", "Print Operators", 0, 153 SENTINEL_PID, -1, -1}, 154 {"S-1-5-32", 551, "BUILTIN", "Backup Operators", 0, 155 SENTINEL_PID, -1, -1}, 156 {"S-1-5-32", 552, "BUILTIN", "Replicator", 0, SENTINEL_PID, -1, -1}, 157 {"S-1-5-32", 554, "BUILTIN", "Pre-Windows 2000 Compatible Access", 0, 158 SENTINEL_PID, -1, -1}, 159 {"S-1-5-32", 555, "BUILTIN", "Remote Desktop Users", 0, 160 SENTINEL_PID, -1, -1}, 161 {"S-1-5-32", 556, "BUILTIN", "Network Configuration Operators", 0, 162 SENTINEL_PID, -1, -1}, 163 {"S-1-5-32", 557, "BUILTIN", "Incoming Forest Trust Builders", 0, 164 SENTINEL_PID, -1, -1}, 165 {"S-1-5-32", 558, "BUILTIN", "Performance Monitor Users", 0, 166 SENTINEL_PID, -1, -1}, 167 {"S-1-5-32", 559, "BUILTIN", "Performance Log Users", 0, 168 SENTINEL_PID, -1, -1}, 169 {"S-1-5-32", 560, "BUILTIN", "Windows Authorization Access Group", 0, 170 SENTINEL_PID, -1, -1}, 171 {"S-1-5-32", 561, "BUILTIN", "Terminal Server License Servers", 0, 172 SENTINEL_PID, -1, -1}, 173 {"S-1-5-32", 562, "BUILTIN", "Distributed COM Users", 0, 174 SENTINEL_PID, -1, -1}, 175 {"S-1-5-32", 568, "BUILTIN", "IIS_IUSRS", 0, SENTINEL_PID, -1, -1}, 176 {"S-1-5-32", 569, "BUILTIN", "Cryptographic Operators", 0, 177 SENTINEL_PID, -1, -1}, 178 {"S-1-5-32", 573, "BUILTIN", "Event Log Readers", 0, 179 SENTINEL_PID, -1, -1}, 180 {"S-1-5-32", 574, "BUILTIN", "Certificate Service DCOM Access", 0, 181 SENTINEL_PID, -1, -1}, 182 183 {"S-1-5", 33, "", "Write Restricted", 0, SENTINEL_PID, -1, -1}, 184 185 /* S-1-5-64 NT Authority */ 186 {"S-1-5-64", 10, "", "NTLM Authentication", 0, SENTINEL_PID, -1, -1}, 187 {"S-1-5-64", 14, "", "SChannel Authentication", 0, 188 SENTINEL_PID, -1, -1}, 189 {"S-1-5-64", 21, "", "Digest Authentication", 0, SENTINEL_PID, -1, -1}, 190 191 /* S-1-5-80-a-b-c-d NT Service */ 192 193 {"S-1-5", 1000, "", "Other Organization", 0, SENTINEL_PID, -1, -1}, 194 195 /* S-1-7 Internet$ */ 196 197 /* 198 * S-1-16 Mandatory Label 199 * S-1-16-0 Untrusted Mandatory Level 200 * S-1-16-4096 Low Mandatory Level 201 * S-1-16-8192 Medium Mandatory Level 202 * S-1-16-8448 Medium Plus Mandatory Level 203 * S-1-16-12288 High Mandatory Level 204 * S-1-16-16384 System Mandatory Level 205 * S-1-16-20480 Protected Process Mandatory Level 206 */ 207 }; 208 209 /* 210 * Find a wksid entry for the specified Windows name and domain, of the 211 * specified type. 212 * 213 * Ignore entries intended only for U2W use. 214 */ 215 const 216 wksids_table_t * 217 find_wksid_by_name(const char *name, const char *domain, int type) 218 { 219 int i; 220 221 RDLOCK_CONFIG(); 222 int len = strlen(_idmapdstate.hostname); 223 char my_host_name[len + 1]; 224 (void) strcpy(my_host_name, _idmapdstate.hostname); 225 UNLOCK_CONFIG(); 226 227 for (i = 0; i < NELEM(wksids); i++) { 228 /* Check to see if this entry yields the desired type */ 229 switch (type) { 230 case IDMAP_UID: 231 if (wksids[i].is_user == 0) 232 continue; 233 break; 234 case IDMAP_GID: 235 if (wksids[i].is_user == 1) 236 continue; 237 break; 238 case IDMAP_POSIXID: 239 break; 240 default: 241 assert(FALSE); 242 } 243 244 if (strcasecmp(wksids[i].winname, name) != 0) 245 continue; 246 247 if (!EMPTY_STRING(domain)) { 248 const char *dom; 249 250 if (wksids[i].domain != NULL) { 251 dom = wksids[i].domain; 252 } else { 253 dom = my_host_name; 254 } 255 if (strcasecmp(dom, domain) != 0) 256 continue; 257 } 258 259 /* 260 * We have a Windows name, so ignore entries that are only 261 * usable for mapping UNIX->Windows. (Note: the current 262 * table does not have any such entries.) 263 */ 264 if (wksids[i].direction == IDMAP_DIRECTION_U2W) 265 continue; 266 267 return (&wksids[i]); 268 } 269 270 return (NULL); 271 } 272 273 /* 274 * Find a wksid entry for the specified SID, of the specified type. 275 * 276 * Ignore entries intended only for U2W use. 277 */ 278 const 279 wksids_table_t * 280 find_wksid_by_sid(const char *sid, int rid, int type) 281 { 282 int i; 283 284 RDLOCK_CONFIG(); 285 int len = strlen(_idmapdstate.cfg->pgcfg.machine_sid); 286 char my_machine_sid[len + 1]; 287 (void) strcpy(my_machine_sid, _idmapdstate.cfg->pgcfg.machine_sid); 288 UNLOCK_CONFIG(); 289 290 for (i = 0; i < NELEM(wksids); i++) { 291 int sidcmp; 292 293 /* Check to see if this entry yields the desired type */ 294 switch (type) { 295 case IDMAP_UID: 296 if (wksids[i].is_user == 0) 297 continue; 298 break; 299 case IDMAP_GID: 300 if (wksids[i].is_user == 1) 301 continue; 302 break; 303 case IDMAP_POSIXID: 304 break; 305 default: 306 assert(FALSE); 307 } 308 309 if (wksids[i].sidprefix != NULL) { 310 sidcmp = strcasecmp(wksids[i].sidprefix, sid); 311 } else { 312 sidcmp = strcasecmp(my_machine_sid, sid); 313 } 314 315 if (sidcmp != 0) 316 continue; 317 if (wksids[i].rid != rid) 318 continue; 319 320 /* 321 * We have a SID, so ignore entries that are only usable 322 * for mapping UNIX->Windows. (Note: the current table 323 * does not have any such entries.) 324 */ 325 if (wksids[i].direction == IDMAP_DIRECTION_U2W) 326 continue; 327 328 return (&wksids[i]); 329 } 330 331 return (NULL); 332 } 333 334 /* 335 * Find a wksid entry for the specified pid, of the specified type. 336 * Ignore entries that do not specify U2W mappings. 337 */ 338 const 339 wksids_table_t * 340 find_wksid_by_pid(uid_t pid, int is_user) 341 { 342 int i; 343 344 if (pid == SENTINEL_PID) 345 return (NULL); 346 347 for (i = 0; i < NELEM(wksids); i++) { 348 if (wksids[i].pid == pid && 349 wksids[i].is_user == is_user && 350 (wksids[i].direction == IDMAP_DIRECTION_BI || 351 wksids[i].direction == IDMAP_DIRECTION_U2W)) { 352 return (&wksids[i]); 353 } 354 } 355 return (NULL); 356 } 357 358 /* 359 * It is probably a bug that both this and find_wksid_by_sid exist, 360 * but for now the distinction is primarily that one takes {machinesid,rid} 361 * and the other takes a full SID. 362 */ 363 const 364 wksids_table_t * 365 find_wk_by_sid(char *sid) 366 { 367 int i; 368 369 RDLOCK_CONFIG(); 370 int len = strlen(_idmapdstate.cfg->pgcfg.machine_sid); 371 char my_machine_sid[len + 1]; 372 (void) strcpy(my_machine_sid, _idmapdstate.cfg->pgcfg.machine_sid); 373 UNLOCK_CONFIG(); 374 375 for (i = 0; i < NELEM(wksids); i++) { 376 int len; 377 const char *prefix; 378 char *p; 379 unsigned long rid; 380 381 if (wksids[i].sidprefix == NULL) 382 prefix = my_machine_sid; 383 else 384 prefix = wksids[i].sidprefix; 385 386 len = strlen(prefix); 387 388 /* 389 * Check to see whether the SID we're looking for starts 390 * with this prefix, then a -, then a single RID, and it's 391 * the right RID. 392 */ 393 if (strncasecmp(sid, prefix, len) != 0) 394 continue; 395 if (sid[len] != '-') 396 continue; 397 rid = strtoul(sid + len + 1, &p, 10); 398 if (*p != '\0') 399 continue; 400 401 if (rid != wksids[i].rid) 402 continue; 403 404 return (&wksids[i]); 405 } 406 return (NULL); 407 } 408