| File: | daemons/ipa-kdb/ipa_kdb_mspac.c |
| Warning: | line 2626, column 17 Value stored to 'ret' is never read |
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| 1 | /* |
| 2 | * MIT Kerberos KDC database backend for FreeIPA |
| 3 | * |
| 4 | * Authors: Simo Sorce <ssorce@redhat.com> |
| 5 | * |
| 6 | * Copyright (C) 2011 Simo Sorce, Red Hat |
| 7 | * see file 'COPYING' for use and warranty information |
| 8 | * |
| 9 | * This program is free software you can redistribute it and/or modify |
| 10 | * it under the terms of the GNU General Public License as published by |
| 11 | * the Free Software Foundation, either version 3 of the License, or |
| 12 | * (at your option) any later version. |
| 13 | * |
| 14 | * This program is distributed in the hope that it will be useful, |
| 15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | * GNU General Public License for more details. |
| 18 | * |
| 19 | * You should have received a copy of the GNU General Public License |
| 20 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 21 | */ |
| 22 | |
| 23 | #include "config.h" |
| 24 | |
| 25 | #include "ipa_kdb.h" |
| 26 | #include "ipa_mspac.h" |
| 27 | #include <talloc.h> |
| 28 | #include <unicase.h> |
| 29 | #include "util/time.h" |
| 30 | #include "gen_ndr/ndr_krb5pac.h" |
| 31 | |
| 32 | #include "ipa_kdb_mspac_private.h" |
| 33 | |
| 34 | static char *user_pac_attrs[] = { |
| 35 | "objectClass", |
| 36 | "uid", |
| 37 | "cn", |
| 38 | "fqdn", |
| 39 | "gidNumber", |
| 40 | "krbPrincipalName", |
| 41 | "krbCanonicalName", |
| 42 | "krbTicketPolicyReference", |
| 43 | "krbPrincipalExpiration", |
| 44 | "krbPasswordExpiration", |
| 45 | "krbPwdPolicyReference", |
| 46 | "krbPrincipalType", |
| 47 | "krbLastPwdChange", |
| 48 | "krbPrincipalAliases", |
| 49 | "krbLastSuccessfulAuth", |
| 50 | "krbLastFailedAuth", |
| 51 | "krbLoginFailedCount", |
| 52 | "krbLastAdminUnlock", |
| 53 | "krbTicketFlags", |
| 54 | "ipaNTSecurityIdentifier", |
| 55 | "ipaNTLogonScript", |
| 56 | "ipaNTProfilePath", |
| 57 | "ipaNTHomeDirectory", |
| 58 | "ipaNTHomeDirectoryDrive", |
| 59 | NULL((void*)0) |
| 60 | }; |
| 61 | |
| 62 | char *deref_search_attrs[] = { |
| 63 | "memberOf", |
| 64 | NULL((void*)0) |
| 65 | }; |
| 66 | |
| 67 | static char *memberof_pac_attrs[] = { |
| 68 | "gidNumber", |
| 69 | "ipaNTSecurityIdentifier", |
| 70 | NULL((void*)0) |
| 71 | }; |
| 72 | |
| 73 | #define SID_ID_AUTHS6 6 |
| 74 | #define SID_SUB_AUTHS15 15 |
| 75 | #define MAX(a,b)(((a)>(b))?(a):(b)) (((a)>(b))?(a):(b)) |
| 76 | #define MIN(a,b)(((a)<(b))?(a):(b)) (((a)<(b))?(a):(b)) |
| 77 | |
| 78 | #define AUTHZ_DATA_TYPE_PAC"MS-PAC" "MS-PAC" |
| 79 | #define AUTHZ_DATA_TYPE_PAD"PAD" "PAD" |
| 80 | #define AUTHZ_DATA_TYPE_NONE"NONE" "NONE" |
| 81 | |
| 82 | int string_to_sid(const char *str, struct dom_sid *sid) |
| 83 | { |
| 84 | unsigned long val; |
| 85 | const char *s; |
| 86 | char *t; |
| 87 | int i; |
| 88 | |
| 89 | if (str == NULL((void*)0)) { |
| 90 | return EINVAL22; |
| 91 | } |
| 92 | |
| 93 | memset(sid, '\0', sizeof(struct dom_sid)); |
| 94 | |
| 95 | s = str; |
| 96 | |
| 97 | if (strncasecmp(s, "S-", 2) != 0) { |
| 98 | return EINVAL22; |
| 99 | } |
| 100 | s += 2; |
| 101 | |
| 102 | val = strtoul(s, &t, 10); |
| 103 | if (s == t || !t || *t != '-') { |
| 104 | return EINVAL22; |
| 105 | } |
| 106 | s = t + 1; |
| 107 | sid->sid_rev_num = val; |
| 108 | |
| 109 | val = strtoul(s, &t, 10); |
| 110 | if (s == t || !t) { |
| 111 | return EINVAL22; |
| 112 | } |
| 113 | sid->id_auth[2] = (val & 0xff000000) >> 24; |
| 114 | sid->id_auth[3] = (val & 0x00ff0000) >> 16; |
| 115 | sid->id_auth[4] = (val & 0x0000ff00) >> 8; |
| 116 | sid->id_auth[5] = (val & 0x000000ff); |
| 117 | |
| 118 | for (i = 0; i < SID_SUB_AUTHS15; i++) { |
| 119 | switch (*t) { |
| 120 | case '\0': |
| 121 | /* no (more) subauths, we are done with it */ |
| 122 | sid->num_auths = i; |
| 123 | return 0; |
| 124 | case '-': |
| 125 | /* there are (more) subauths */ |
| 126 | s = t + 1;; |
| 127 | break; |
| 128 | default: |
| 129 | /* garbage */ |
| 130 | return EINVAL22; |
| 131 | } |
| 132 | |
| 133 | val = strtoul(s, &t, 10); |
| 134 | if (s == t || !t) { |
| 135 | return EINVAL22; |
| 136 | } |
| 137 | sid->sub_auths[i] = val; |
| 138 | } |
| 139 | |
| 140 | if (*t != '\0') { |
| 141 | return EINVAL22; |
| 142 | } |
| 143 | |
| 144 | sid->num_auths = i; |
| 145 | return 0; |
| 146 | } |
| 147 | |
| 148 | char *dom_sid_string(TALLOC_CTX *memctx, const struct dom_sid *dom_sid) |
| 149 | { |
| 150 | size_t c; |
| 151 | size_t len; |
| 152 | int ofs; |
| 153 | uint32_t ia; |
| 154 | char *buf; |
| 155 | |
| 156 | if (dom_sid == NULL((void*)0) |
| 157 | || dom_sid->num_auths < 0 |
| 158 | || dom_sid->num_auths > SID_SUB_AUTHS15) { |
| 159 | return NULL((void*)0); |
| 160 | } |
| 161 | |
| 162 | len = 25 + dom_sid->num_auths * 11; |
| 163 | |
| 164 | buf = talloc_zero_size(memctx, len)_talloc_zero(memctx, len, "ipa_kdb_mspac.c" ":" "164"); |
| 165 | if (buf == NULL((void*)0)) { |
| 166 | return NULL((void*)0); |
| 167 | } |
| 168 | |
| 169 | ia = (dom_sid->id_auth[5]) + |
| 170 | (dom_sid->id_auth[4] << 8 ) + |
| 171 | (dom_sid->id_auth[3] << 16) + |
| 172 | (dom_sid->id_auth[2] << 24); |
| 173 | |
| 174 | ofs = snprintf(buf, len, "S-%u-%lu", (unsigned int) dom_sid->sid_rev_num, |
| 175 | (unsigned long) ia); |
| 176 | |
| 177 | for (c = 0; c < dom_sid->num_auths; c++) { |
| 178 | ofs += snprintf(buf + ofs, MAX(len - ofs, 0)(((len - ofs)>(0))?(len - ofs):(0)), "-%lu", |
| 179 | (unsigned long) dom_sid->sub_auths[c]); |
| 180 | } |
| 181 | |
| 182 | if (ofs >= len) { |
| 183 | talloc_free(buf)_talloc_free(buf, "ipa_kdb_mspac.c" ":" "183"); |
| 184 | return NULL((void*)0); |
| 185 | } |
| 186 | |
| 187 | return buf; |
| 188 | } |
| 189 | |
| 190 | static struct dom_sid *dom_sid_dup(TALLOC_CTX *memctx, |
| 191 | const struct dom_sid *dom_sid) |
| 192 | { |
| 193 | struct dom_sid *new_sid; |
| 194 | size_t c; |
| 195 | |
| 196 | if (dom_sid == NULL((void*)0)) { |
| 197 | return NULL((void*)0); |
| 198 | } |
| 199 | |
| 200 | new_sid = talloc(memctx, struct dom_sid)(struct dom_sid *)talloc_named_const(memctx, sizeof(struct dom_sid ), "struct dom_sid"); |
| 201 | if (new_sid == NULL((void*)0)) { |
| 202 | return NULL((void*)0); |
| 203 | } |
| 204 | |
| 205 | new_sid->sid_rev_num = dom_sid->sid_rev_num; |
| 206 | for (c = 0; c < SID_ID_AUTHS6; c++) { |
| 207 | new_sid->id_auth[c] = dom_sid->id_auth[c]; |
| 208 | } |
| 209 | new_sid->num_auths = dom_sid->num_auths; |
| 210 | for (c = 0; c < SID_SUB_AUTHS15; c++) { |
| 211 | new_sid->sub_auths[c] = dom_sid->sub_auths[c]; |
| 212 | } |
| 213 | |
| 214 | return new_sid; |
| 215 | } |
| 216 | |
| 217 | /* checks if sid1 is a domain of sid2 or compares them exactly if exact_check is true |
| 218 | * returns |
| 219 | * true -- if sid1 is a domain of sid2 (including full exact match) |
| 220 | * false -- otherwise |
| 221 | * |
| 222 | * dom_sid_check() is supposed to be used with sid1 representing domain SID |
| 223 | * and sid2 being either domain or resource SID in the domain |
| 224 | */ |
| 225 | static bool_Bool dom_sid_check(const struct dom_sid *sid1, const struct dom_sid *sid2, bool_Bool exact_check) |
| 226 | { |
| 227 | int c, num; |
| 228 | |
| 229 | if (sid1 == sid2) { |
| 230 | return true1; |
| 231 | } |
| 232 | |
| 233 | if (sid1 == NULL((void*)0)) { |
| 234 | return false0; |
| 235 | } |
| 236 | |
| 237 | if (sid2 == NULL((void*)0)) { |
| 238 | return false0; |
| 239 | } |
| 240 | |
| 241 | /* If SIDs have different revisions, they are different */ |
| 242 | if (sid1->sid_rev_num != sid2->sid_rev_num) |
| 243 | return false0; |
| 244 | |
| 245 | /* When number of authorities is different, sids are different |
| 246 | * if we were asked to check prefix exactly */ |
| 247 | num = sid2->num_auths - sid1->num_auths; |
| 248 | if (num != 0) { |
| 249 | if (exact_check) { |
| 250 | return false0; |
| 251 | } else { |
| 252 | /* otherwise we are dealing with prefix check |
| 253 | * and sid2 should have RID compared to the sid1 */ |
| 254 | if (num != 1) { |
| 255 | return false0; |
| 256 | } |
| 257 | } |
| 258 | } |
| 259 | |
| 260 | /* now either sid1->num_auths == sid2->num_auths or sid1 has no RID */ |
| 261 | |
| 262 | /* for same size authorities compare them backwards |
| 263 | * since RIDs are likely different */ |
| 264 | for (c = sid1->num_auths; c >= 0; --c) |
| 265 | if (sid1->sub_auths[c] != sid2->sub_auths[c]) |
| 266 | return false0; |
| 267 | |
| 268 | /* Finally, compare Identifier authorities */ |
| 269 | for (c = 0; c < SID_ID_AUTHS6; c++) |
| 270 | if (sid1->id_auth[c] != sid2->id_auth[c]) |
| 271 | return false0; |
| 272 | |
| 273 | return true1; |
| 274 | } |
| 275 | |
| 276 | static bool_Bool dom_sid_is_prefix(const struct dom_sid *sid1, const struct dom_sid *sid2) |
| 277 | { |
| 278 | int c; |
| 279 | |
| 280 | if (sid1 == sid2) { |
| 281 | return true1; |
| 282 | } |
| 283 | |
| 284 | if (sid1 == NULL((void*)0)) { |
| 285 | return false0; |
| 286 | } |
| 287 | |
| 288 | if (sid2 == NULL((void*)0)) { |
| 289 | return false0; |
| 290 | } |
| 291 | |
| 292 | /* If SIDs have different revisions, they are different */ |
| 293 | if (sid1->sid_rev_num != sid2->sid_rev_num) |
| 294 | return false0; |
| 295 | |
| 296 | if (sid1->num_auths > sid2->num_auths) |
| 297 | return false0; |
| 298 | |
| 299 | /* now sid1->num_auths <= sid2->num_auths */ |
| 300 | |
| 301 | /* compare up to sid1->num_auth authorities since RIDs are |
| 302 | * likely different and we are searching for the prefix */ |
| 303 | for (c = 0; c < sid1->num_auths; c++) |
| 304 | if (sid1->sub_auths[c] != sid2->sub_auths[c]) |
| 305 | return false0; |
| 306 | |
| 307 | /* Finally, compare Identifier authorities */ |
| 308 | for (c = 0; c < SID_ID_AUTHS6; c++) |
| 309 | if (sid1->id_auth[c] != sid2->id_auth[c]) |
| 310 | return false0; |
| 311 | |
| 312 | return true1; |
| 313 | } |
| 314 | |
| 315 | static int sid_append_rid(struct dom_sid *sid, uint32_t rid) |
| 316 | { |
| 317 | if (sid->num_auths >= SID_SUB_AUTHS15) { |
| 318 | return EINVAL22; |
| 319 | } |
| 320 | |
| 321 | sid->sub_auths[sid->num_auths++] = rid; |
| 322 | return 0; |
| 323 | } |
| 324 | |
| 325 | /** |
| 326 | * @brief Takes a user sid and removes the rid. |
| 327 | * The sid is changed by this function, |
| 328 | * the removed rid is returned too. |
| 329 | * |
| 330 | * @param sid A user/group SID |
| 331 | * @param rid The actual RID found. |
| 332 | * |
| 333 | * @return 0 on success, EINVAL otherwise. |
| 334 | */ |
| 335 | static int sid_split_rid(struct dom_sid *sid, uint32_t *rid) |
| 336 | { |
| 337 | if (sid->num_auths == 0) { |
| 338 | return EINVAL22; |
| 339 | } |
| 340 | |
| 341 | sid->num_auths--; |
| 342 | if (rid != NULL((void*)0)) { |
| 343 | *rid = sid->sub_auths[sid->num_auths]; |
| 344 | } |
| 345 | sid->sub_auths[sid->num_auths] = 0; |
| 346 | |
| 347 | return 0; |
| 348 | } |
| 349 | |
| 350 | /* Add Asserted Identity SID */ |
| 351 | static krb5_error_code ipadb_add_asserted_identity(struct ipadb_context *ipactx, |
| 352 | unsigned int flags, |
| 353 | TALLOC_CTX *memctx, |
| 354 | struct netr_SamInfo3 *info3) |
| 355 | { |
| 356 | struct netr_SidAttr *arr = NULL((void*)0); |
| 357 | uint32_t sidcount = info3->sidcount; |
| 358 | krb5_error_code ret = 0; |
| 359 | |
| 360 | arr = talloc_realloc(memctx,(struct netr_SidAttr *)_talloc_realloc_array(memctx, info3-> sids, sizeof(struct netr_SidAttr), sidcount + 1, "struct netr_SidAttr" ) |
| 361 | info3->sids,(struct netr_SidAttr *)_talloc_realloc_array(memctx, info3-> sids, sizeof(struct netr_SidAttr), sidcount + 1, "struct netr_SidAttr" ) |
| 362 | struct netr_SidAttr,(struct netr_SidAttr *)_talloc_realloc_array(memctx, info3-> sids, sizeof(struct netr_SidAttr), sidcount + 1, "struct netr_SidAttr" ) |
| 363 | sidcount + 1)(struct netr_SidAttr *)_talloc_realloc_array(memctx, info3-> sids, sizeof(struct netr_SidAttr), sidcount + 1, "struct netr_SidAttr" ); |
| 364 | if (!arr) { |
| 365 | return ENOMEM12; |
| 366 | } |
| 367 | arr[sidcount].sid = talloc_zero(arr, struct dom_sid2)(struct dom_sid *)_talloc_zero(arr, sizeof(struct dom_sid), "struct dom_sid2" ); |
| 368 | if (!arr[sidcount].sid) { |
| 369 | return ENOMEM12; |
| 370 | } |
| 371 | |
| 372 | /* For S4U2Self, add Service Asserted Identity SID |
| 373 | * otherwise, add Authentication Authority Asserted Identity SID */ |
| 374 | ret = string_to_sid((flags & KRB5_KDB_FLAG_PROTOCOL_TRANSITION0x00000100) ? |
| 375 | "S-1-18-2" : "S-1-18-1", |
| 376 | arr[sidcount].sid); |
| 377 | if (ret) { |
| 378 | return ret; |
| 379 | } |
| 380 | arr[sidcount].attributes = SE_GROUP_MANDATORY( 0x00000001 ) | |
| 381 | SE_GROUP_ENABLED( 0x00000004 ) | |
| 382 | SE_GROUP_ENABLED_BY_DEFAULT( 0x00000002 ); |
| 383 | info3->sids = arr; |
| 384 | info3->sidcount = sidcount + 1; |
| 385 | info3->base.user_flags |= NETLOGON_EXTRA_SIDS( 0x00000020 ); |
| 386 | |
| 387 | return 0; |
| 388 | } |
| 389 | |
| 390 | static bool_Bool is_master_host(struct ipadb_context *ipactx, const char *fqdn) |
| 391 | { |
| 392 | int ret; |
| 393 | char *master_host_base = NULL((void*)0); |
| 394 | LDAPMessage *result = NULL((void*)0); |
| 395 | krb5_error_code err; |
| 396 | |
| 397 | ret = asprintf(&master_host_base, "cn=%s,cn=masters,cn=ipa,cn=etc,%s", |
| 398 | fqdn, ipactx->base); |
| 399 | if (ret == -1) { |
| 400 | return false0; |
| 401 | } |
| 402 | err = ipadb_simple_search(ipactx, master_host_base, LDAP_SCOPE_BASE((ber_int_t) 0x0000), |
| 403 | NULL((void*)0), NULL((void*)0), &result); |
| 404 | free(master_host_base); |
| 405 | ldap_msgfree(result); |
| 406 | if (err == 0) { |
| 407 | return true1; |
| 408 | } |
| 409 | |
| 410 | return false0; |
| 411 | } |
| 412 | |
| 413 | static krb5_error_code ipadb_fill_info3(struct ipadb_context *ipactx, |
| 414 | LDAPMessage *lentry, |
| 415 | unsigned int flags, |
| 416 | TALLOC_CTX *memctx, |
| 417 | struct netr_SamInfo3 *info3) |
| 418 | { |
| 419 | LDAP *lcontext = ipactx->lcontext; |
| 420 | LDAPDerefRes *deref_results = NULL((void*)0); |
| 421 | struct dom_sid sid; |
| 422 | gid_t prigid = -1; |
| 423 | time_t timeres; |
| 424 | char *strres; |
| 425 | int intres; |
| 426 | int ret; |
| 427 | char **objectclasses = NULL((void*)0); |
| 428 | size_t c; |
| 429 | bool_Bool is_host = false0; |
| 430 | bool_Bool is_user = false0; |
| 431 | bool_Bool is_service = false0; |
| 432 | bool_Bool is_ipauser = false0; |
| 433 | bool_Bool is_idobject = false0; |
| 434 | krb5_principal princ; |
| 435 | |
| 436 | ret = ipadb_ldap_attr_to_strlist(lcontext, lentry, "objectClass", |
| 437 | &objectclasses); |
| 438 | if (ret == 0 && objectclasses != NULL((void*)0)) { |
| 439 | for (c = 0; objectclasses[c] != NULL((void*)0); c++) { |
| 440 | if (strcasecmp(objectclasses[c], "ipaHost") == 0) { |
| 441 | is_host = true1; |
| 442 | } |
| 443 | if (strcasecmp(objectclasses[c], "ipaService") == 0) { |
| 444 | is_service = true1; |
| 445 | } |
| 446 | if (strcasecmp(objectclasses[c], "ipaNTUserAttrs") == 0) { |
| 447 | is_user = true1; |
| 448 | } |
| 449 | if (strcasecmp(objectclasses[c], "ipaIDObject") == 0) { |
| 450 | is_idobject = true1; |
| 451 | } |
| 452 | if (strcasecmp(objectclasses[c], "ipaUser") == 0) { |
| 453 | is_ipauser = true1; |
| 454 | } |
| 455 | free(objectclasses[c]); |
| 456 | } |
| 457 | } |
| 458 | free(objectclasses); |
| 459 | |
| 460 | /* SMB service on IPA domain member will have both ipaIDOjbect and ipaUser |
| 461 | * object classes. Such service will have to be treated as a user in order |
| 462 | * to issue MS-PAC record for it. */ |
| 463 | if (is_idobject && is_ipauser) { |
| 464 | is_user = true1; |
| 465 | } |
| 466 | |
| 467 | if (!is_host && !is_user && !is_service) { |
| 468 | /* We only handle users and hosts, and services */ |
| 469 | return ENOENT2; |
| 470 | } |
| 471 | |
| 472 | if (is_host) { |
| 473 | ret = ipadb_ldap_attr_to_str(lcontext, lentry, "fqdn", &strres); |
| 474 | if (ret) { |
| 475 | /* fqdn is mandatory for hosts */ |
| 476 | return ret; |
| 477 | } |
| 478 | } else if (is_service) { |
| 479 | ret = ipadb_ldap_attr_to_str(lcontext, lentry, "krbCanonicalName", &strres); |
| 480 | if (ret) { |
| 481 | /* krbCanonicalName is mandatory for services */ |
| 482 | return ret; |
| 483 | } |
| 484 | |
| 485 | ret = krb5_parse_name(ipactx->kcontext, strres, &princ); |
| 486 | |
| 487 | free(strres); |
| 488 | if (ret) { |
| 489 | return ENOENT2; |
| 490 | } |
| 491 | |
| 492 | ret = krb5_unparse_name_flags(ipactx->kcontext, |
| 493 | princ, KRB5_PRINCIPAL_UNPARSE_SHORT0x1, |
| 494 | &strres); |
| 495 | if (ret) { |
| 496 | return ENOENT2; |
| 497 | } |
| 498 | } else { |
| 499 | ret = ipadb_ldap_attr_to_str(lcontext, lentry, "uid", &strres); |
| 500 | if (ret) { |
| 501 | /* uid is mandatory */ |
| 502 | return ret; |
| 503 | } |
| 504 | } |
| 505 | |
| 506 | info3->base.account_name.string = talloc_strdup(memctx, strres); |
| 507 | free(strres); |
| 508 | |
| 509 | if (is_host || is_service) { |
| 510 | prigid = 515; /* Well known RID for domain computers group */ |
| 511 | } else { |
| 512 | ret = ipadb_ldap_attr_to_int(lcontext, lentry, "gidNumber", &intres); |
| 513 | if (ret) { |
| 514 | /* gidNumber is mandatory */ |
| 515 | return ret; |
| 516 | } |
| 517 | prigid = intres; |
| 518 | } |
| 519 | |
| 520 | |
| 521 | info3->base.logon_time = 0; /* do not have this info yet */ |
| 522 | info3->base.logoff_time = -1; /* do not force logoff */ |
| 523 | |
| 524 | /* TODO: is krbPrinciplaExpiration what we want to use in kickoff_time ? |
| 525 | * Needs more investigation */ |
| 526 | #if 0 |
| 527 | ret = ipadb_ldap_attr_to_time_t(lcontext, lentry, |
| 528 | "krbPrincipalExpiration", &timeres); |
| 529 | switch (ret) { |
| 530 | case 0: |
| 531 | unix_to_nt_time(&info3->base.acct_expiry, timeres); |
| 532 | break; |
| 533 | case ENOENT2: |
| 534 | info3->base.acct_expiry = -1; |
| 535 | break; |
| 536 | default: |
| 537 | return ret; |
| 538 | } |
| 539 | #else |
| 540 | info3->base.kickoff_time = -1; |
| 541 | #endif |
| 542 | |
| 543 | ret = ipadb_ldap_attr_to_time_t(lcontext, lentry, |
| 544 | "krbLastPwdChange", &timeres); |
| 545 | switch (ret) { |
| 546 | case 0: |
| 547 | unix_to_nt_time(&info3->base.last_password_change, timeres); |
| 548 | break; |
| 549 | case ENOENT2: |
| 550 | info3->base.last_password_change = 0; |
| 551 | break; |
| 552 | default: |
| 553 | return ret; |
| 554 | } |
| 555 | |
| 556 | /* TODO: from pw policy (ied->pol) */ |
| 557 | info3->base.allow_password_change = 0; |
| 558 | info3->base.force_password_change = -1; |
| 559 | |
| 560 | ret = ipadb_ldap_attr_to_str(lcontext, lentry, "cn", &strres); |
| 561 | switch (ret) { |
| 562 | case 0: |
| 563 | info3->base.full_name.string = talloc_strdup(memctx, strres); |
| 564 | free(strres); |
| 565 | break; |
| 566 | case ENOENT2: |
| 567 | info3->base.full_name.string = ""; |
| 568 | break; |
| 569 | default: |
| 570 | return ret; |
| 571 | } |
| 572 | |
| 573 | ret = ipadb_ldap_attr_to_str(lcontext, lentry, |
| 574 | "ipaNTLogonScript", &strres); |
| 575 | switch (ret) { |
| 576 | case 0: |
| 577 | info3->base.logon_script.string = talloc_strdup(memctx, strres); |
| 578 | free(strres); |
| 579 | break; |
| 580 | case ENOENT2: |
| 581 | info3->base.logon_script.string = ""; |
| 582 | break; |
| 583 | default: |
| 584 | return ret; |
| 585 | } |
| 586 | |
| 587 | ret = ipadb_ldap_attr_to_str(lcontext, lentry, |
| 588 | "ipaNTProfilePath", &strres); |
| 589 | switch (ret) { |
| 590 | case 0: |
| 591 | info3->base.profile_path.string = talloc_strdup(memctx, strres); |
| 592 | free(strres); |
| 593 | break; |
| 594 | case ENOENT2: |
| 595 | info3->base.profile_path.string = ""; |
| 596 | break; |
| 597 | default: |
| 598 | return ret; |
| 599 | } |
| 600 | |
| 601 | ret = ipadb_ldap_attr_to_str(lcontext, lentry, |
| 602 | "ipaNTHomeDirectory", &strres); |
| 603 | switch (ret) { |
| 604 | case 0: |
| 605 | info3->base.home_directory.string = talloc_strdup(memctx, strres); |
| 606 | free(strres); |
| 607 | break; |
| 608 | case ENOENT2: |
| 609 | info3->base.home_directory.string = ""; |
| 610 | break; |
| 611 | default: |
| 612 | return ret; |
| 613 | } |
| 614 | |
| 615 | ret = ipadb_ldap_attr_to_str(lcontext, lentry, |
| 616 | "ipaNTHomeDirectoryDrive", &strres); |
| 617 | switch (ret) { |
| 618 | case 0: |
| 619 | info3->base.home_drive.string = talloc_strdup(memctx, strres); |
| 620 | free(strres); |
| 621 | break; |
| 622 | case ENOENT2: |
| 623 | info3->base.home_drive.string = ""; |
| 624 | break; |
| 625 | default: |
| 626 | return ret; |
| 627 | } |
| 628 | |
| 629 | info3->base.logon_count = 0; /* we do not have this info yet */ |
| 630 | info3->base.bad_password_count = 0; /* we do not have this info yet */ |
| 631 | |
| 632 | if ((is_host || is_service)) { |
| 633 | /* it is either host or service, so get the hostname first */ |
| 634 | char *sep = strchr(info3->base.account_name.string, '/'); |
| 635 | bool_Bool is_master = is_master_host( |
| 636 | ipactx, |
| 637 | sep ? sep + 1 : info3->base.account_name.string); |
| 638 | if (is_master) { |
| 639 | /* Well know RID of domain controllers group */ |
| 640 | info3->base.rid = 516; |
| 641 | } else { |
| 642 | /* Well know RID of domain computers group */ |
| 643 | info3->base.rid = 515; |
| 644 | } |
| 645 | } else { |
| 646 | ret = ipadb_ldap_attr_to_str(lcontext, lentry, |
| 647 | "ipaNTSecurityIdentifier", &strres); |
| 648 | if (ret) { |
| 649 | /* SID is mandatory */ |
| 650 | return ret; |
| 651 | } |
| 652 | ret = string_to_sid(strres, &sid); |
| 653 | free(strres); |
| 654 | if (ret) { |
| 655 | return ret; |
| 656 | } |
| 657 | ret = sid_split_rid(&sid, &info3->base.rid); |
| 658 | if (ret) { |
| 659 | return ret; |
| 660 | } |
| 661 | } |
| 662 | |
| 663 | ret = ipadb_ldap_deref_results(lcontext, lentry, &deref_results); |
| 664 | switch (ret) { |
| 665 | LDAPDerefRes *dres; |
| 666 | LDAPDerefVal *dval; |
| 667 | struct dom_sid gsid; |
| 668 | uint32_t trid; |
| 669 | gid_t tgid; |
| 670 | char *s; |
| 671 | int count; |
| 672 | case 0: |
| 673 | count = 0; |
| 674 | for (dres = deref_results; dres; dres = dres->next) { |
| 675 | count++; /* count*/ |
| 676 | } |
| 677 | info3->base.groups.rids = talloc_array(memctx,(struct samr_RidWithAttribute *)_talloc_array(memctx, sizeof( struct samr_RidWithAttribute), count, "struct samr_RidWithAttribute" ) |
| 678 | struct samr_RidWithAttribute, count)(struct samr_RidWithAttribute *)_talloc_array(memctx, sizeof( struct samr_RidWithAttribute), count, "struct samr_RidWithAttribute" ); |
| 679 | if (!info3->base.groups.rids) { |
| 680 | ldap_derefresponse_free(deref_results); |
| 681 | return ENOMEM12; |
| 682 | } |
| 683 | |
| 684 | count = 0; |
| 685 | info3->base.primary_gid = 0; |
| 686 | for (dres = deref_results; dres; dres = dres->next) { |
| 687 | gsid.sid_rev_num = 0; |
| 688 | tgid = 0; |
| 689 | for (dval = dres->attrVals; dval; dval = dval->next) { |
| 690 | if (strcasecmp(dval->type, "gidNumber") == 0) { |
| 691 | tgid = strtoul((char *)dval->vals[0].bv_val, &s, 10); |
| 692 | if (tgid == 0) { |
| 693 | continue; |
| 694 | } |
| 695 | } |
| 696 | if (strcasecmp(dval->type, "ipaNTSecurityIdentifier") == 0) { |
| 697 | ret = string_to_sid((char *)dval->vals[0].bv_val, &gsid); |
| 698 | if (ret) { |
| 699 | continue; |
| 700 | } |
| 701 | } |
| 702 | } |
| 703 | if (tgid && gsid.sid_rev_num) { |
| 704 | ret = sid_split_rid(&gsid, &trid); |
| 705 | if (ret) { |
| 706 | continue; |
| 707 | } |
| 708 | if (tgid == prigid) { |
| 709 | info3->base.primary_gid = trid; |
| 710 | } |
| 711 | info3->base.groups.rids[count].rid = trid; |
| 712 | info3->base.groups.rids[count].attributes = |
| 713 | SE_GROUP_ENABLED( 0x00000004 ) | |
| 714 | SE_GROUP_MANDATORY( 0x00000001 ) | |
| 715 | SE_GROUP_ENABLED_BY_DEFAULT( 0x00000002 ); |
| 716 | count++; |
| 717 | } |
| 718 | } |
| 719 | info3->base.groups.count = count; |
| 720 | |
| 721 | ldap_derefresponse_free(deref_results); |
| 722 | break; |
| 723 | case ENOENT2: |
| 724 | info3->base.groups.count = 0; |
| 725 | info3->base.groups.rids = NULL((void*)0); |
| 726 | break; |
| 727 | default: |
| 728 | return ret; |
| 729 | } |
| 730 | |
| 731 | if (info3->base.primary_gid == 0) { |
| 732 | if (is_host || is_service) { |
| 733 | info3->base.primary_gid = 515; /* Well known RID for domain computers group */ |
| 734 | } else { |
| 735 | if (ipactx->mspac->fallback_rid) { |
| 736 | info3->base.primary_gid = ipactx->mspac->fallback_rid; |
| 737 | } else { |
| 738 | /* can't give a pack without a primary group rid */ |
| 739 | return ENOENT2; |
| 740 | } |
| 741 | } |
| 742 | } |
| 743 | |
| 744 | /* always zero out, only valid flags are for extra sids with Krb */ |
| 745 | info3->base.user_flags = 0; /* netr_UserFlags */ |
| 746 | |
| 747 | /* always zero out, not used for Krb, only NTLM */ |
| 748 | memset(&info3->base.key, '\0', sizeof(info3->base.key)); |
| 749 | |
| 750 | if (ipactx->mspac->flat_server_name) { |
| 751 | info3->base.logon_server.string = |
| 752 | talloc_strdup(memctx, ipactx->mspac->flat_server_name); |
| 753 | if (!info3->base.logon_server.string) { |
| 754 | return ENOMEM12; |
| 755 | } |
| 756 | } else { |
| 757 | /* can't give a pack without Server NetBIOS Name :-| */ |
| 758 | return ENOENT2; |
| 759 | } |
| 760 | |
| 761 | if (ipactx->mspac->flat_domain_name) { |
| 762 | info3->base.logon_domain.string = |
| 763 | talloc_strdup(memctx, ipactx->mspac->flat_domain_name); |
| 764 | if (!info3->base.logon_domain.string) { |
| 765 | return ENOMEM12; |
| 766 | } |
| 767 | } else { |
| 768 | /* can't give a pack without Domain NetBIOS Name :-| */ |
| 769 | return ENOENT2; |
| 770 | } |
| 771 | |
| 772 | if (is_host || is_service) { |
| 773 | info3->base.domain_sid = talloc_memdup(memctx, &ipactx->mspac->domsid,_talloc_memdup(memctx, &ipactx->mspac->domsid, sizeof (ipactx->mspac->domsid), "ipa_kdb_mspac.c" ":" "774") |
| 774 | sizeof(ipactx->mspac->domsid))_talloc_memdup(memctx, &ipactx->mspac->domsid, sizeof (ipactx->mspac->domsid), "ipa_kdb_mspac.c" ":" "774"); |
| 775 | } else { |
| 776 | /* we got the domain SID for the user sid */ |
| 777 | info3->base.domain_sid = talloc_memdup(memctx, &sid, sizeof(sid))_talloc_memdup(memctx, &sid, sizeof(sid), "ipa_kdb_mspac.c" ":" "777"); |
| 778 | } |
| 779 | |
| 780 | /* always zero out, not used for Krb, only NTLM */ |
| 781 | memset(&info3->base.LMSessKey, '\0', sizeof(info3->base.LMSessKey)); |
| 782 | |
| 783 | /* TODO: fill based on objectclass, user vs computer, etc... */ |
| 784 | info3->base.acct_flags = ACB_NORMAL( 0x00000010 ); /* samr_AcctFlags */ |
| 785 | |
| 786 | info3->base.sub_auth_status = 0; |
| 787 | info3->base.last_successful_logon = 0; |
| 788 | info3->base.last_failed_logon = 0; |
| 789 | info3->base.failed_logon_count = 0; /* We do not have it */ |
| 790 | info3->base.reserved = 0; /* Reserved */ |
| 791 | |
| 792 | ret = ipadb_add_asserted_identity(ipactx, flags, memctx, info3); |
| 793 | return ret; |
| 794 | } |
| 795 | |
| 796 | static krb5_error_code ipadb_get_pac(krb5_context kcontext, |
| 797 | krb5_db_entry *client, |
| 798 | unsigned int flags, |
| 799 | krb5_pac *pac) |
| 800 | { |
| 801 | TALLOC_CTX *tmpctx; |
| 802 | struct ipadb_e_data *ied; |
| 803 | struct ipadb_context *ipactx; |
| 804 | LDAPMessage *results = NULL((void*)0); |
| 805 | LDAPMessage *lentry; |
| 806 | DATA_BLOB pac_data; |
| 807 | krb5_data data; |
| 808 | union PAC_INFO pac_info; |
| 809 | krb5_error_code kerr; |
| 810 | enum ndr_err_code ndr_err; |
| 811 | union PAC_INFO pac_upn; |
| 812 | char *principal = NULL((void*)0); |
| 813 | |
| 814 | /* When no client entry is there, we cannot generate MS-PAC */ |
| 815 | if (!client) { |
| 816 | *pac = NULL((void*)0); |
| 817 | return 0; |
| 818 | } |
| 819 | |
| 820 | ipactx = ipadb_get_context(kcontext); |
| 821 | if (!ipactx) { |
| 822 | return KRB5_KDB_DBNOTINITED(-1780008435L); |
| 823 | } |
| 824 | |
| 825 | ied = (struct ipadb_e_data *)client->e_data; |
| 826 | if (ied->magic != IPA_E_DATA_MAGIC0x0eda7a) { |
| 827 | return EINVAL22; |
| 828 | } |
| 829 | |
| 830 | tmpctx = talloc_new(NULL)talloc_named_const(((void*)0), 0, "talloc_new: " "ipa_kdb_mspac.c" ":" "830"); |
| 831 | if (!tmpctx) { |
| 832 | return ENOMEM12; |
| 833 | } |
| 834 | |
| 835 | memset(&pac_info, 0, sizeof(pac_info)); |
| 836 | pac_info.logon_info.info = talloc_zero(tmpctx, struct PAC_LOGON_INFO)(struct PAC_LOGON_INFO *)_talloc_zero(tmpctx, sizeof(struct PAC_LOGON_INFO ), "struct PAC_LOGON_INFO"); |
| 837 | if (!pac_info.logon_info.info) { |
| 838 | kerr = ENOMEM12; |
| 839 | goto done; |
| 840 | } |
| 841 | |
| 842 | /* PAC_LOGON_NAME and PAC_TYPE_UPN_DNS_INFO are automatically added |
| 843 | * by krb5_pac_sign() later on */ |
| 844 | |
| 845 | /* == Search PAC info == */ |
| 846 | kerr = ipadb_deref_search(ipactx, ied->entry_dn, LDAP_SCOPE_BASE((ber_int_t) 0x0000), |
| 847 | "(objectclass=*)", user_pac_attrs, |
| 848 | deref_search_attrs, memberof_pac_attrs, |
| 849 | &results); |
| 850 | if (kerr) { |
| 851 | goto done; |
| 852 | } |
| 853 | |
| 854 | lentry = ldap_first_entry(ipactx->lcontext, results); |
| 855 | if (!lentry) { |
| 856 | kerr = ENOENT2; |
| 857 | goto done; |
| 858 | } |
| 859 | |
| 860 | /* == Fill Info3 == */ |
| 861 | kerr = ipadb_fill_info3(ipactx, lentry, flags, tmpctx, |
| 862 | &pac_info.logon_info.info->info3); |
| 863 | if (kerr) { |
| 864 | goto done; |
| 865 | } |
| 866 | |
| 867 | /* == Package PAC == */ |
| 868 | ndr_err = ndr_push_union_blob(&pac_data, tmpctx, &pac_info, |
| 869 | PAC_TYPE_LOGON_INFO, |
| 870 | (ndr_push_flags_fn_t)ndr_push_PAC_INFO); |
| 871 | if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)(ndr_err == NDR_ERR_SUCCESS)) { |
| 872 | kerr = KRB5_KDB_INTERNAL_ERROR(-1780008411L); |
| 873 | goto done; |
| 874 | } |
| 875 | |
| 876 | kerr = krb5_pac_init(kcontext, pac); |
| 877 | if (kerr) { |
| 878 | goto done; |
| 879 | } |
| 880 | |
| 881 | data.magic = KV5M_DATA(-1760647422L); |
| 882 | data.data = (char *)pac_data.data; |
| 883 | data.length = pac_data.length; |
| 884 | |
| 885 | kerr = krb5_pac_add_buffer(kcontext, *pac, KRB5_PAC_LOGON_INFO1, &data); |
| 886 | |
| 887 | /* == Package UPN_DNS_LOGON_INFO == */ |
| 888 | memset(&pac_upn, 0, sizeof(pac_upn)); |
| 889 | kerr = krb5_unparse_name(kcontext, client->princ, &principal); |
| 890 | if (kerr) { |
| 891 | goto done; |
| 892 | } |
| 893 | |
| 894 | pac_upn.upn_dns_info.upn_name = talloc_strdup(tmpctx, principal); |
| 895 | krb5_free_unparsed_name(kcontext, principal); |
| 896 | if (pac_upn.upn_dns_info.upn_name == NULL((void*)0)) { |
| 897 | kerr = KRB5_KDB_INTERNAL_ERROR(-1780008411L); |
| 898 | goto done; |
| 899 | } |
| 900 | |
| 901 | pac_upn.upn_dns_info.dns_domain_name = talloc_strdup(tmpctx, ipactx->realm); |
| 902 | if (pac_upn.upn_dns_info.dns_domain_name == NULL((void*)0)) { |
| 903 | kerr = KRB5_KDB_INTERNAL_ERROR(-1780008411L); |
| 904 | goto done; |
| 905 | } |
| 906 | |
| 907 | /* IPA user principals are all constructed */ |
| 908 | if ((pac_info.logon_info.info->info3.base.rid != 515) || |
| 909 | (pac_info.logon_info.info->info3.base.rid != 516)) { |
| 910 | pac_upn.upn_dns_info.flags |= PAC_UPN_DNS_FLAG_CONSTRUCTED( 0x00000001 ); |
| 911 | } |
| 912 | |
| 913 | ndr_err = ndr_push_union_blob(&pac_data, tmpctx, &pac_upn, |
| 914 | PAC_TYPE_UPN_DNS_INFO, |
| 915 | (ndr_push_flags_fn_t)ndr_push_PAC_INFO); |
| 916 | if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)(ndr_err == NDR_ERR_SUCCESS)) { |
| 917 | kerr = KRB5_KDB_INTERNAL_ERROR(-1780008411L); |
| 918 | goto done; |
| 919 | } |
| 920 | |
| 921 | data.magic = KV5M_DATA(-1760647422L); |
| 922 | data.data = (char *)pac_data.data; |
| 923 | data.length = pac_data.length; |
| 924 | |
| 925 | kerr = krb5_pac_add_buffer(kcontext, *pac, KRB5_PAC_UPN_DNS_INFO12, &data); |
| 926 | |
| 927 | done: |
| 928 | ldap_msgfree(results); |
| 929 | talloc_free(tmpctx)_talloc_free(tmpctx, "ipa_kdb_mspac.c" ":" "929"); |
| 930 | return kerr; |
| 931 | } |
| 932 | |
| 933 | static bool_Bool is_cross_realm_krbtgt(krb5_const_principal princ) |
| 934 | { |
| 935 | if ((princ->length != 2) || |
| 936 | (princ->data[0].length != 6) || |
| 937 | (strncasecmp(princ->data[0].data, "krbtgt", 6) != 0)) { |
| 938 | return false0; |
| 939 | } |
| 940 | if (princ->data[1].length == princ->realm.length && |
| 941 | strncasecmp(princ->data[1].data, |
| 942 | princ->realm.data, princ->realm.length) == 0) { |
| 943 | return false0; |
| 944 | } |
| 945 | |
| 946 | return true1; |
| 947 | } |
| 948 | |
| 949 | static char *gen_sid_string(TALLOC_CTX *memctx, struct dom_sid *dom_sid, |
| 950 | uint32_t rid) |
| 951 | { |
| 952 | char *str = NULL((void*)0); |
| 953 | int ret; |
| 954 | |
| 955 | ret = sid_append_rid(dom_sid, rid); |
| 956 | if (ret != 0) { |
| 957 | krb5_klog_syslog(LOG_ERR3, "sid_append_rid failed"); |
| 958 | return NULL((void*)0); |
| 959 | } |
| 960 | |
| 961 | str = dom_sid_string(memctx, dom_sid); |
| 962 | ret = sid_split_rid(dom_sid, NULL((void*)0)); |
| 963 | if (ret != 0) { |
| 964 | krb5_klog_syslog(LOG_ERR3, "sid_split_rid failed"); |
| 965 | talloc_free(str)_talloc_free(str, "ipa_kdb_mspac.c" ":" "965"); |
| 966 | return NULL((void*)0); |
| 967 | } |
| 968 | |
| 969 | return str; |
| 970 | } |
| 971 | |
| 972 | static int get_user_and_group_sids(TALLOC_CTX *memctx, |
| 973 | struct PAC_LOGON_INFO_CTR *logon_info, |
| 974 | char ***_group_sids) |
| 975 | { |
| 976 | int ret; |
| 977 | size_t c; |
| 978 | size_t p = 0; |
| 979 | struct dom_sid *domain_sid = NULL((void*)0); |
| 980 | char **group_sids = NULL((void*)0); |
| 981 | |
| 982 | domain_sid = dom_sid_dup(memctx, logon_info->info->info3.base.domain_sid); |
| 983 | if (domain_sid == NULL((void*)0)) { |
| 984 | krb5_klog_syslog(LOG_ERR3, "dom_sid_dup failed"); |
| 985 | ret = ENOMEM12; |
| 986 | goto done; |
| 987 | } |
| 988 | |
| 989 | group_sids = talloc_array(memctx, char *,(char * *)_talloc_array(memctx, sizeof(char *), 3 + logon_info ->info->info3.base.groups.count + logon_info->info-> info3.sidcount, "char *") |
| 990 | 3 +(char * *)_talloc_array(memctx, sizeof(char *), 3 + logon_info ->info->info3.base.groups.count + logon_info->info-> info3.sidcount, "char *") |
| 991 | logon_info->info->info3.base.groups.count +(char * *)_talloc_array(memctx, sizeof(char *), 3 + logon_info ->info->info3.base.groups.count + logon_info->info-> info3.sidcount, "char *") |
| 992 | logon_info->info->info3.sidcount)(char * *)_talloc_array(memctx, sizeof(char *), 3 + logon_info ->info->info3.base.groups.count + logon_info->info-> info3.sidcount, "char *"); |
| 993 | if (group_sids == NULL((void*)0)) { |
| 994 | krb5_klog_syslog(LOG_ERR3, "talloc_array failed"); |
| 995 | ret = ENOMEM12; |
| 996 | goto done; |
| 997 | } |
| 998 | |
| 999 | group_sids[p] = gen_sid_string(memctx, domain_sid, |
| 1000 | logon_info->info->info3.base.rid); |
| 1001 | if (group_sids[p] == NULL((void*)0)) { |
| 1002 | krb5_klog_syslog(LOG_ERR3, "gen_sid_string failed"); |
| 1003 | ret = EINVAL22; |
| 1004 | goto done; |
| 1005 | } |
| 1006 | p++; |
| 1007 | |
| 1008 | group_sids[p] = gen_sid_string(memctx, domain_sid, |
| 1009 | logon_info->info->info3.base.primary_gid); |
| 1010 | if (group_sids[p] == NULL((void*)0)) { |
| 1011 | krb5_klog_syslog(LOG_ERR3, "gen_sid_string failed"); |
| 1012 | ret = EINVAL22; |
| 1013 | goto done; |
| 1014 | } |
| 1015 | p++; |
| 1016 | |
| 1017 | for (c = 0; c < logon_info->info->info3.base.groups.count; c++) { |
| 1018 | group_sids[p] = gen_sid_string(memctx, domain_sid, |
| 1019 | logon_info->info->info3.base.groups.rids[c].rid); |
| 1020 | if (group_sids[p] == NULL((void*)0)) { |
| 1021 | krb5_klog_syslog(LOG_ERR3, "gen_sid_string 2 failed"); |
| 1022 | ret = EINVAL22; |
| 1023 | goto done; |
| 1024 | } |
| 1025 | p++; |
| 1026 | } |
| 1027 | for (c = 0; c < logon_info->info->info3.sidcount; c++) { |
| 1028 | group_sids[p] = dom_sid_string(memctx, |
| 1029 | logon_info->info->info3.sids[c].sid); |
| 1030 | if (group_sids[p] == NULL((void*)0)) { |
| 1031 | krb5_klog_syslog(LOG_ERR3, "dom_sid_string failed"); |
| 1032 | ret = EINVAL22; |
| 1033 | goto done; |
| 1034 | } |
| 1035 | p++; |
| 1036 | } |
| 1037 | |
| 1038 | group_sids[p] = NULL((void*)0); |
| 1039 | |
| 1040 | *_group_sids = group_sids; |
| 1041 | |
| 1042 | ret = 0; |
| 1043 | done: |
| 1044 | talloc_free(domain_sid)_talloc_free(domain_sid, "ipa_kdb_mspac.c" ":" "1044"); |
| 1045 | if (ret != 0) { |
| 1046 | talloc_free(group_sids)_talloc_free(group_sids, "ipa_kdb_mspac.c" ":" "1046"); |
| 1047 | } |
| 1048 | |
| 1049 | return ret; |
| 1050 | } |
| 1051 | |
| 1052 | static int add_groups(TALLOC_CTX *memctx, |
| 1053 | struct PAC_LOGON_INFO_CTR *logon_info, |
| 1054 | size_t ipa_group_sids_count, |
| 1055 | struct dom_sid2dom_sid *ipa_group_sids) |
| 1056 | { |
| 1057 | size_t c; |
| 1058 | struct netr_SidAttr *sids = NULL((void*)0); |
| 1059 | |
| 1060 | if (ipa_group_sids_count == 0) { |
| 1061 | return 0; |
| 1062 | } |
| 1063 | |
| 1064 | sids = talloc_realloc(memctx, logon_info->info->info3.sids,(struct netr_SidAttr *)_talloc_realloc_array(memctx, logon_info ->info->info3.sids, sizeof(struct netr_SidAttr), logon_info ->info->info3.sidcount + ipa_group_sids_count, "struct netr_SidAttr" ) |
| 1065 | struct netr_SidAttr,(struct netr_SidAttr *)_talloc_realloc_array(memctx, logon_info ->info->info3.sids, sizeof(struct netr_SidAttr), logon_info ->info->info3.sidcount + ipa_group_sids_count, "struct netr_SidAttr" ) |
| 1066 | logon_info->info->info3.sidcount + ipa_group_sids_count)(struct netr_SidAttr *)_talloc_realloc_array(memctx, logon_info ->info->info3.sids, sizeof(struct netr_SidAttr), logon_info ->info->info3.sidcount + ipa_group_sids_count, "struct netr_SidAttr" ); |
| 1067 | if (sids == NULL((void*)0)) { |
| 1068 | return ENOMEM12; |
| 1069 | } |
| 1070 | |
| 1071 | |
| 1072 | for (c = 0; c < ipa_group_sids_count; c++) { |
| 1073 | sids[c + logon_info->info->info3.sidcount].sid = &ipa_group_sids[c]; |
| 1074 | sids[c + logon_info->info->info3.sidcount].attributes = |
| 1075 | SE_GROUP_ENABLED( 0x00000004 ) | |
| 1076 | SE_GROUP_MANDATORY( 0x00000001 ) | |
| 1077 | SE_GROUP_ENABLED_BY_DEFAULT( 0x00000002 ); |
| 1078 | } |
| 1079 | |
| 1080 | logon_info->info->info3.sidcount += ipa_group_sids_count; |
| 1081 | logon_info->info->info3.sids = sids; |
| 1082 | |
| 1083 | |
| 1084 | return 0; |
| 1085 | } |
| 1086 | |
| 1087 | static int map_groups(TALLOC_CTX *memctx, krb5_context kcontext, |
| 1088 | char **group_sids, size_t *_ipa_group_sids_count, |
| 1089 | struct dom_sid **_ipa_group_sids) |
| 1090 | { |
| 1091 | struct ipadb_context *ipactx; |
| 1092 | krb5_error_code kerr; |
| 1093 | int ret; |
| 1094 | LDAPMessage *results = NULL((void*)0); |
| 1095 | LDAPMessage *lentry; |
| 1096 | char *basedn = NULL((void*)0); |
| 1097 | char *filter = NULL((void*)0); |
| 1098 | LDAPDerefRes *deref_results = NULL((void*)0); |
| 1099 | LDAPDerefRes *dres; |
| 1100 | LDAPDerefVal *dval; |
| 1101 | size_t c; |
| 1102 | size_t count = 0; |
| 1103 | size_t sid_index = 0; |
| 1104 | struct dom_sid *sids = NULL((void*)0); |
| 1105 | char *entry_attrs[] ={"1.1", NULL((void*)0)}; |
| 1106 | unsigned long gid; |
| 1107 | struct dom_sid sid; |
| 1108 | char *endptr; |
| 1109 | |
| 1110 | ipactx = ipadb_get_context(kcontext); |
| 1111 | if (ipactx == NULL((void*)0)) { |
| 1112 | return KRB5_KDB_DBNOTINITED(-1780008435L); |
| 1113 | } |
| 1114 | |
| 1115 | basedn = talloc_asprintf(memctx, "cn=groups,cn=accounts,%s", ipactx->base); |
| 1116 | if (basedn == NULL((void*)0)) { |
| 1117 | krb5_klog_syslog(LOG_ERR3, "talloc_asprintf failed."); |
| 1118 | kerr = ENOMEM12; |
| 1119 | goto done; |
| 1120 | } |
| 1121 | |
| 1122 | for (c = 0; group_sids[c] != NULL((void*)0); c++) { |
| 1123 | talloc_free(filter)_talloc_free(filter, "ipa_kdb_mspac.c" ":" "1123"); |
| 1124 | filter = talloc_asprintf(memctx, "(&(objectclass=ipaExternalGroup)(ipaExternalMember=%s))", |
| 1125 | group_sids[c]); |
| 1126 | if (filter == NULL((void*)0)) { |
| 1127 | krb5_klog_syslog(LOG_ERR3, "talloc_asprintf failed."); |
| 1128 | kerr = ENOMEM12; |
| 1129 | goto done; |
| 1130 | } |
| 1131 | |
| 1132 | ldap_msgfree(results); |
| 1133 | kerr = ipadb_deref_search(ipactx, basedn, LDAP_SCOPE_ONE((ber_int_t) 0x0001), filter, |
| 1134 | entry_attrs, deref_search_attrs, |
| 1135 | memberof_pac_attrs, &results); |
| 1136 | if (kerr != 0) { |
| 1137 | krb5_klog_syslog(LOG_ERR3, "ipadb_deref_search failed."); |
| 1138 | goto done; |
| 1139 | } |
| 1140 | |
| 1141 | lentry = ldap_first_entry(ipactx->lcontext, results); |
| 1142 | if (lentry == NULL((void*)0)) { |
| 1143 | continue; |
| 1144 | } |
| 1145 | |
| 1146 | do { |
| 1147 | ldap_derefresponse_free(deref_results); |
| 1148 | ret = ipadb_ldap_deref_results(ipactx->lcontext, lentry, &deref_results); |
| 1149 | switch (ret) { |
| 1150 | case ENOENT2: |
| 1151 | /* No entry found, try next SID */ |
| 1152 | break; |
| 1153 | case 0: |
| 1154 | if (deref_results == NULL((void*)0)) { |
| 1155 | krb5_klog_syslog(LOG_ERR3, "No results."); |
| 1156 | break; |
| 1157 | } |
| 1158 | |
| 1159 | for (dres = deref_results; dres; dres = dres->next) { |
| 1160 | count++; |
| 1161 | } |
| 1162 | |
| 1163 | sids = talloc_realloc(memctx, sids, struct dom_sid, count)(struct dom_sid *)_talloc_realloc_array(memctx, sids, sizeof( struct dom_sid), count, "struct dom_sid"); |
| 1164 | if (sids == NULL((void*)0)) { |
| 1165 | krb5_klog_syslog(LOG_ERR3, "talloc_realloc failed."); |
| 1166 | kerr = ENOMEM12; |
| 1167 | goto done; |
| 1168 | } |
| 1169 | |
| 1170 | for (dres = deref_results; dres; dres = dres->next) { |
| 1171 | gid = 0; |
| 1172 | memset(&sid, '\0', sizeof(struct dom_sid)); |
| 1173 | for (dval = dres->attrVals; dval; dval = dval->next) { |
| 1174 | if (strcasecmp(dval->type, "gidNumber") == 0) { |
| 1175 | errno(*__errno_location ()) = 0; |
| 1176 | gid = strtoul((char *)dval->vals[0].bv_val, |
| 1177 | &endptr,10); |
| 1178 | if (gid == 0 || gid >= UINT32_MAX(4294967295U) || errno(*__errno_location ()) != 0 || |
| 1179 | *endptr != '\0') { |
| 1180 | continue; |
| 1181 | } |
| 1182 | } |
| 1183 | if (strcasecmp(dval->type, |
| 1184 | "ipaNTSecurityIdentifier") == 0) { |
| 1185 | kerr = string_to_sid((char *)dval->vals[0].bv_val, &sid); |
| 1186 | if (kerr != 0) { |
| 1187 | continue; |
| 1188 | } |
| 1189 | } |
| 1190 | } |
| 1191 | if (gid != 0 && sid.sid_rev_num != 0) { |
| 1192 | /* TODO: check if gid maps to sid */ |
| 1193 | if (sid_index >= count) { |
| 1194 | krb5_klog_syslog(LOG_ERR3, "Index larger than " |
| 1195 | "array, this shoould " |
| 1196 | "never happen."); |
| 1197 | kerr = EFAULT14; |
| 1198 | goto done; |
| 1199 | } |
| 1200 | memcpy(&sids[sid_index], &sid, sizeof(struct dom_sid)); |
| 1201 | sid_index++; |
| 1202 | } |
| 1203 | } |
| 1204 | |
| 1205 | break; |
| 1206 | default: |
| 1207 | goto done; |
| 1208 | } |
| 1209 | |
| 1210 | lentry = ldap_next_entry(ipactx->lcontext, lentry); |
| 1211 | } while (lentry != NULL((void*)0)); |
| 1212 | } |
| 1213 | |
| 1214 | *_ipa_group_sids_count = sid_index; |
| 1215 | *_ipa_group_sids = sids; |
| 1216 | |
| 1217 | kerr = 0; |
| 1218 | |
| 1219 | done: |
| 1220 | ldap_derefresponse_free(deref_results); |
| 1221 | talloc_free(basedn)_talloc_free(basedn, "ipa_kdb_mspac.c" ":" "1221"); |
| 1222 | talloc_free(filter)_talloc_free(filter, "ipa_kdb_mspac.c" ":" "1222"); |
| 1223 | ldap_msgfree(results); |
| 1224 | return kerr; |
| 1225 | } |
| 1226 | |
| 1227 | static krb5_error_code get_logon_info(krb5_context context, |
| 1228 | TALLOC_CTX *memctx, |
| 1229 | krb5_data *pac_blob, |
| 1230 | struct PAC_LOGON_INFO_CTR *info) |
| 1231 | { |
| 1232 | DATA_BLOB pac_data; |
| 1233 | enum ndr_err_code ndr_err; |
| 1234 | |
| 1235 | pac_data.length = pac_blob->length; |
| 1236 | pac_data.data = (uint8_t *)pac_blob->data; |
| 1237 | |
| 1238 | ndr_err = ndr_pull_union_blob(&pac_data, memctx, info, |
| 1239 | PAC_TYPE_LOGON_INFO, |
| 1240 | (ndr_pull_flags_fn_t)ndr_pull_PAC_INFO); |
| 1241 | if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)(ndr_err == NDR_ERR_SUCCESS)) { |
| 1242 | return KRB5_KDB_INTERNAL_ERROR(-1780008411L); |
| 1243 | } |
| 1244 | |
| 1245 | return 0; |
| 1246 | } |
| 1247 | |
| 1248 | static krb5_error_code add_local_groups(krb5_context context, |
| 1249 | TALLOC_CTX *memctx, |
| 1250 | struct PAC_LOGON_INFO_CTR *info) |
| 1251 | { |
| 1252 | int ret; |
| 1253 | char **group_sids = NULL((void*)0); |
| 1254 | size_t ipa_group_sids_count = 0; |
| 1255 | struct dom_sid *ipa_group_sids = NULL((void*)0); |
| 1256 | |
| 1257 | ret = get_user_and_group_sids(memctx, info, &group_sids); |
| 1258 | if (ret != 0) { |
| 1259 | return KRB5_KDB_INTERNAL_ERROR(-1780008411L); |
| 1260 | } |
| 1261 | |
| 1262 | ret = map_groups(memctx, context, group_sids, &ipa_group_sids_count, |
| 1263 | &ipa_group_sids); |
| 1264 | if (ret != 0) { |
| 1265 | return KRB5_KDB_INTERNAL_ERROR(-1780008411L); |
| 1266 | } |
| 1267 | |
| 1268 | ret = add_groups(memctx, info, ipa_group_sids_count, ipa_group_sids); |
| 1269 | if (ret != 0) { |
| 1270 | krb5_klog_syslog(LOG_ERR3, "add_groups failed"); |
| 1271 | return KRB5_KDB_INTERNAL_ERROR(-1780008411L); |
| 1272 | } |
| 1273 | |
| 1274 | return 0; |
| 1275 | } |
| 1276 | |
| 1277 | static krb5_error_code save_logon_info(krb5_context context, |
| 1278 | TALLOC_CTX *memctx, |
| 1279 | struct PAC_LOGON_INFO_CTR *info, |
| 1280 | krb5_data *pac_blob) |
| 1281 | { |
| 1282 | DATA_BLOB pac_data; |
| 1283 | enum ndr_err_code ndr_err; |
| 1284 | |
| 1285 | ndr_err = ndr_push_union_blob(&pac_data, memctx, info, |
| 1286 | PAC_TYPE_LOGON_INFO, |
| 1287 | (ndr_push_flags_fn_t)ndr_push_PAC_INFO); |
| 1288 | if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)(ndr_err == NDR_ERR_SUCCESS)) { |
| 1289 | return KRB5_KDB_INTERNAL_ERROR(-1780008411L); |
| 1290 | } |
| 1291 | |
| 1292 | free(pac_blob->data); |
| 1293 | pac_blob->data = malloc(pac_data.length); |
| 1294 | if (pac_blob->data == NULL((void*)0)) { |
| 1295 | pac_blob->length = 0; |
| 1296 | return ENOMEM12; |
| 1297 | } |
| 1298 | memcpy(pac_blob->data, pac_data.data, pac_data.length); |
| 1299 | pac_blob->length = pac_data.length; |
| 1300 | |
| 1301 | return 0; |
| 1302 | } |
| 1303 | |
| 1304 | static struct ipadb_adtrusts *get_domain_from_realm(krb5_context context, |
| 1305 | krb5_data realm) |
| 1306 | { |
| 1307 | struct ipadb_context *ipactx; |
| 1308 | struct ipadb_adtrusts *domain; |
| 1309 | int i; |
| 1310 | |
| 1311 | ipactx = ipadb_get_context(context); |
| 1312 | if (!ipactx) { |
| 1313 | return NULL((void*)0); |
| 1314 | } |
| 1315 | |
| 1316 | if (ipactx->mspac == NULL((void*)0)) { |
| 1317 | return NULL((void*)0); |
| 1318 | } |
| 1319 | |
| 1320 | for (i = 0; i < ipactx->mspac->num_trusts; i++) { |
| 1321 | domain = &ipactx->mspac->trusts[i]; |
| 1322 | if (strlen(domain->domain_name) != realm.length) { |
| 1323 | continue; |
| 1324 | } |
| 1325 | if (strncasecmp(domain->domain_name, realm.data, realm.length) == 0) { |
| 1326 | return domain; |
| 1327 | } |
| 1328 | } |
| 1329 | |
| 1330 | return NULL((void*)0); |
| 1331 | } |
| 1332 | |
| 1333 | static struct ipadb_adtrusts *get_domain_from_realm_update(krb5_context context, |
| 1334 | krb5_data realm) |
| 1335 | { |
| 1336 | struct ipadb_context *ipactx; |
| 1337 | struct ipadb_adtrusts *domain; |
| 1338 | krb5_error_code kerr; |
| 1339 | |
| 1340 | ipactx = ipadb_get_context(context); |
| 1341 | if (!ipactx) { |
| 1342 | return NULL((void*)0); |
| 1343 | } |
| 1344 | |
| 1345 | /* re-init MS-PAC info using default update interval */ |
| 1346 | kerr = ipadb_reinit_mspac(ipactx, false0); |
| 1347 | if (kerr != 0) { |
| 1348 | return NULL((void*)0); |
| 1349 | } |
| 1350 | domain = get_domain_from_realm(context, realm); |
| 1351 | |
| 1352 | return domain; |
| 1353 | } |
| 1354 | |
| 1355 | static void filter_logon_info_log_message(struct dom_sid *sid) |
| 1356 | { |
| 1357 | char *domstr = NULL((void*)0); |
| 1358 | |
| 1359 | domstr = dom_sid_string(NULL((void*)0), sid); |
| 1360 | if (domstr) { |
| 1361 | krb5_klog_syslog(LOG_ERR3, "PAC filtering issue: SID [%s] is not allowed " |
| 1362 | "from a trusted source and will be excluded.", domstr); |
| 1363 | talloc_free(domstr)_talloc_free(domstr, "ipa_kdb_mspac.c" ":" "1363"); |
| 1364 | } else { |
| 1365 | krb5_klog_syslog(LOG_ERR3, "PAC filtering issue: SID is not allowed " |
| 1366 | "from a trusted source and will be excluded." |
| 1367 | "Unable to allocate memory to display SID."); |
| 1368 | } |
| 1369 | } |
| 1370 | |
| 1371 | static void filter_logon_info_log_message_rid(struct dom_sid *sid, uint32_t rid) |
| 1372 | { |
| 1373 | char *domstr = NULL((void*)0); |
| 1374 | |
| 1375 | domstr = dom_sid_string(NULL((void*)0), sid); |
| 1376 | if (domstr) { |
| 1377 | krb5_klog_syslog(LOG_ERR3, "PAC filtering issue: SID [%s-%d] is not allowed " |
| 1378 | "from a trusted source and will be excluded.", domstr, rid); |
| 1379 | talloc_free(domstr)_talloc_free(domstr, "ipa_kdb_mspac.c" ":" "1379"); |
| 1380 | } else { |
| 1381 | krb5_klog_syslog(LOG_ERR3, "PAC filtering issue: SID is not allowed " |
| 1382 | "from a trusted source and will be excluded." |
| 1383 | "Unable to allocate memory to display SID."); |
| 1384 | } |
| 1385 | } |
| 1386 | |
| 1387 | krb5_error_code filter_logon_info(krb5_context context, |
| 1388 | TALLOC_CTX *memctx, |
| 1389 | krb5_data realm, |
| 1390 | struct PAC_LOGON_INFO_CTR *info) |
| 1391 | { |
| 1392 | |
| 1393 | /* We must refuse a PAC that comes signed with a cross realm TGT |
| 1394 | * where the client pretends to be from a different realm. It is an |
| 1395 | * attempt at getting us to sign fake credentials with the help of a |
| 1396 | * compromised trusted realm */ |
| 1397 | |
| 1398 | /* NOTE: there are two outcomes from filtering: |
| 1399 | * REJECT TICKET -- ticket is rejected if domain SID of |
| 1400 | * the principal with MS-PAC is filtered out or |
| 1401 | * its primary group RID is filtered out |
| 1402 | * |
| 1403 | * REMOVE SID -- SIDs are removed from the list of SIDs associated |
| 1404 | * with the principal if they are filtered out |
| 1405 | * This applies also to secondary RIDs of the principal |
| 1406 | * if domain_sid-<secondary RID> is filtered out |
| 1407 | */ |
| 1408 | |
| 1409 | struct ipadb_context *ipactx; |
| 1410 | struct ipadb_adtrusts *domain; |
| 1411 | int i, j, k, l, count; |
| 1412 | uint32_t rid; |
| 1413 | bool_Bool result; |
| 1414 | char *domstr = NULL((void*)0); |
| 1415 | |
| 1416 | domain = get_domain_from_realm_update(context, realm); |
| 1417 | if (!domain) { |
| 1418 | return EINVAL22; |
| 1419 | } |
| 1420 | |
| 1421 | /* check netbios/flat name */ |
| 1422 | if (strcasecmp(info->info->info3.base.logon_domain.string, |
| 1423 | domain->flat_name) != 0) { |
| 1424 | krb5_klog_syslog(LOG_ERR3, "PAC Info mismatch: domain = %s, " |
| 1425 | "expected flat name = %s, " |
| 1426 | "found logon name = %s", |
| 1427 | domain->domain_name, domain->flat_name, |
| 1428 | info->info->info3.base.logon_domain.string); |
| 1429 | return EINVAL22; |
| 1430 | } |
| 1431 | |
| 1432 | /* check exact sid */ |
| 1433 | result = dom_sid_check(&domain->domsid, info->info->info3.base.domain_sid, true1); |
| 1434 | if (!result) { |
| 1435 | domstr = dom_sid_string(NULL((void*)0), info->info->info3.base.domain_sid); |
| 1436 | if (!domstr) { |
| 1437 | return EINVAL22; |
| 1438 | } |
| 1439 | krb5_klog_syslog(LOG_ERR3, "PAC Info mismatch: domain = %s, " |
| 1440 | "expected domain SID = %s, " |
| 1441 | "found domain SID = %s", |
| 1442 | domain->domain_name, domain->domain_sid, domstr); |
| 1443 | talloc_free(domstr)_talloc_free(domstr, "ipa_kdb_mspac.c" ":" "1443"); |
| 1444 | return EINVAL22; |
| 1445 | } |
| 1446 | |
| 1447 | /* Check if this domain has been filtered out by the trust itself*/ |
| 1448 | if (domain->parent != NULL((void*)0)) { |
| 1449 | for(k = 0; k < domain->parent->len_sid_blacklist_incoming; k++) { |
| 1450 | result = dom_sid_check(info->info->info3.base.domain_sid, |
| 1451 | &domain->parent->sid_blacklist_incoming[k], true1); |
| 1452 | if (result) { |
| 1453 | filter_logon_info_log_message(info->info->info3.base.domain_sid); |
| 1454 | return KRB5KDC_ERR_POLICY(-1765328372L); |
| 1455 | } |
| 1456 | } |
| 1457 | } |
| 1458 | |
| 1459 | /* Check if this user's SIDs membership is filtered too */ |
| 1460 | for(k = 0; k < domain->len_sid_blacklist_incoming; k++) { |
| 1461 | /* Short-circuit if there are no RIDs. This may happen if we filtered everything already. |
| 1462 | * In normal situation there would be at least primary gid as RID in the RIDs array |
| 1463 | * but if we filtered out the primary RID, this MS-PAC is invalid */ |
| 1464 | count = info->info->info3.base.groups.count; |
| 1465 | result = dom_sid_is_prefix(info->info->info3.base.domain_sid, |
| 1466 | &domain->sid_blacklist_incoming[k]); |
| 1467 | if (result) { |
| 1468 | i = 0; |
| 1469 | j = 0; |
| 1470 | if (domain->sid_blacklist_incoming[k].num_auths - info->info->info3.base.domain_sid->num_auths != 1) { |
| 1471 | krb5_klog_syslog(LOG_ERR3, "Incoming SID blacklist element matching domain [%s with SID %s] " |
| 1472 | "has more than one RID component. Invalid check skipped.", |
| 1473 | domain->domain_name, domain->domain_sid); |
| 1474 | break; |
| 1475 | } |
| 1476 | rid = domain->sid_blacklist_incoming[k].sub_auths[domain->sid_blacklist_incoming[k].num_auths - 1]; |
| 1477 | if (rid == info->info->info3.base.rid) { |
| 1478 | filter_logon_info_log_message_rid(info->info->info3.base.domain_sid, rid); |
| 1479 | /* Actual user's SID is filtered out */ |
| 1480 | return KRB5KDC_ERR_POLICY(-1765328372L); |
| 1481 | } |
| 1482 | if (rid == info->info->info3.base.primary_gid) { |
| 1483 | /* User's primary group SID is filtered out */ |
| 1484 | return KRB5KDC_ERR_POLICY(-1765328372L); |
| 1485 | } |
| 1486 | if (count == 0) { |
| 1487 | /* Having checked actual user's SID and primary group SID, and having no other RIDs, |
| 1488 | * skip checks below and continue to next blacklist element */ |
| 1489 | continue; |
| 1490 | } |
| 1491 | |
| 1492 | do { |
| 1493 | if (rid == info->info->info3.base.groups.rids[i].rid) { |
| 1494 | filter_logon_info_log_message_rid(info->info->info3.base.domain_sid, rid); |
| 1495 | /* If this is just a non-primary RID, we simply remove it from the array of RIDs */ |
| 1496 | l = count - i - j - 1; |
| 1497 | if (l != 0) { |
| 1498 | memmove(info->info->info3.base.groups.rids+i, |
| 1499 | info->info->info3.base.groups.rids+i+1, |
| 1500 | sizeof(struct samr_RidWithAttribute)*l); |
| 1501 | } |
| 1502 | j++; |
| 1503 | } else { |
| 1504 | i++; |
| 1505 | } |
| 1506 | } while ((i + j) < count); |
| 1507 | |
| 1508 | if (j != 0) { |
| 1509 | count = count-j; |
| 1510 | if (count == 0) { |
| 1511 | /* All RIDs were filtered out. Unusual but MS-KILE 3.3.5.6.3.1 says SHOULD, not MUST for GroupCount */ |
| 1512 | info->info->info3.base.groups.count = 0; |
| 1513 | talloc_free(info->info->info3.base.groups.rids)_talloc_free(info->info->info3.base.groups.rids, "ipa_kdb_mspac.c" ":" "1513"); |
| 1514 | info->info->info3.base.groups.rids = NULL((void*)0); |
| 1515 | } else { |
| 1516 | info->info->info3.base.groups.rids = talloc_realloc(memctx,(struct samr_RidWithAttribute *)_talloc_realloc_array(memctx, info->info->info3.base.groups.rids, sizeof(struct samr_RidWithAttribute ), count, "struct samr_RidWithAttribute") |
| 1517 | info->info->info3.base.groups.rids,(struct samr_RidWithAttribute *)_talloc_realloc_array(memctx, info->info->info3.base.groups.rids, sizeof(struct samr_RidWithAttribute ), count, "struct samr_RidWithAttribute") |
| 1518 | struct samr_RidWithAttribute, count)(struct samr_RidWithAttribute *)_talloc_realloc_array(memctx, info->info->info3.base.groups.rids, sizeof(struct samr_RidWithAttribute ), count, "struct samr_RidWithAttribute"); |
| 1519 | if (!info->info->info3.base.groups.rids) { |
| 1520 | info->info->info3.base.groups.count = 0; |
| 1521 | return ENOMEM12; |
| 1522 | } |
| 1523 | info->info->info3.base.groups.count = count; |
| 1524 | } |
| 1525 | } |
| 1526 | } |
| 1527 | } |
| 1528 | |
| 1529 | /* According to MS-KILE 25.0, info->info->info3.sids may be non zero, so check |
| 1530 | * should include different possibilities into account |
| 1531 | * */ |
| 1532 | if (info->info->info3.sidcount != 0) { |
| 1533 | ipactx = ipadb_get_context(context); |
| 1534 | if (!ipactx || !ipactx->mspac) { |
| 1535 | return KRB5_KDB_DBNOTINITED(-1780008435L); |
| 1536 | } |
| 1537 | count = info->info->info3.sidcount; |
| 1538 | i = 0; |
| 1539 | j = 0; |
| 1540 | do { |
| 1541 | /* Compare SID with our domain without taking RID into account */ |
| 1542 | result = dom_sid_check(&ipactx->mspac->domsid, info->info->info3.sids[i].sid, false0); |
| 1543 | if (result) { |
| 1544 | filter_logon_info_log_message(info->info->info3.sids[i].sid); |
| 1545 | } else { |
| 1546 | /* Go over incoming SID blacklist */ |
| 1547 | for(k = 0; k < domain->len_sid_blacklist_incoming; k++) { |
| 1548 | /* if SID is an exact match, filter it out */ |
| 1549 | result = dom_sid_check(&domain->sid_blacklist_incoming[k], info->info->info3.sids[i].sid, true1); |
| 1550 | if (result) { |
| 1551 | filter_logon_info_log_message(info->info->info3.sids[i].sid); |
| 1552 | break; |
| 1553 | } |
| 1554 | /* if SID is a suffix of the blacklist element, filter it out*/ |
| 1555 | result = dom_sid_is_prefix(&domain->sid_blacklist_incoming[k], info->info->info3.sids[i].sid); |
| 1556 | if (result) { |
| 1557 | filter_logon_info_log_message(info->info->info3.sids[i].sid); |
| 1558 | break; |
| 1559 | } |
| 1560 | } |
| 1561 | } |
| 1562 | if (result) { |
| 1563 | k = count - i - j - 1; |
| 1564 | if (k != 0) { |
| 1565 | memmove(info->info->info3.sids+i, |
| 1566 | info->info->info3.sids+i+1, |
| 1567 | sizeof(struct netr_SidAttr)*k); |
| 1568 | } |
| 1569 | j++; |
| 1570 | } else { |
| 1571 | i++; |
| 1572 | } |
| 1573 | } while ((i + j) < count); |
| 1574 | |
| 1575 | if (j != 0) { |
| 1576 | count = count-j; |
| 1577 | if (count == 0) { |
| 1578 | /* All SIDs were filtered out */ |
| 1579 | info->info->info3.sidcount = 0; |
| 1580 | talloc_free(info->info->info3.sids)_talloc_free(info->info->info3.sids, "ipa_kdb_mspac.c" ":" "1580"); |
| 1581 | info->info->info3.sids = NULL((void*)0); |
| 1582 | } else { |
| 1583 | info->info->info3.sids = talloc_realloc(memctx,(struct netr_SidAttr *)_talloc_realloc_array(memctx, info-> info->info3.sids, sizeof(struct netr_SidAttr), count, "struct netr_SidAttr" ) |
| 1584 | info->info->info3.sids,(struct netr_SidAttr *)_talloc_realloc_array(memctx, info-> info->info3.sids, sizeof(struct netr_SidAttr), count, "struct netr_SidAttr" ) |
| 1585 | struct netr_SidAttr, count)(struct netr_SidAttr *)_talloc_realloc_array(memctx, info-> info->info3.sids, sizeof(struct netr_SidAttr), count, "struct netr_SidAttr" ); |
| 1586 | if (!info->info->info3.sids) { |
| 1587 | info->info->info3.sidcount = 0; |
| 1588 | return ENOMEM12; |
| 1589 | } |
| 1590 | info->info->info3.sidcount = count; |
| 1591 | } |
| 1592 | } |
| 1593 | } |
| 1594 | |
| 1595 | /* According to MS-KILE, ResourceGroups must be zero, so check |
| 1596 | * that it is the case here */ |
| 1597 | #ifdef HAVE_STRUCT_PAC_DOMAIN_GROUP_MEMBERSHIP1 |
| 1598 | if (info->info->resource_groups.domain_sid != NULL((void*)0) && |
| 1599 | info->info->resource_groups.groups.count != 0) { |
| 1600 | return EINVAL22; |
| 1601 | } |
| 1602 | #else |
| 1603 | if (info->info->res_group_dom_sid != NULL((void*)0) && |
| 1604 | info->info->res_groups.count != 0) { |
| 1605 | return EINVAL22; |
| 1606 | } |
| 1607 | #endif |
| 1608 | |
| 1609 | return 0; |
| 1610 | } |
| 1611 | |
| 1612 | |
| 1613 | static krb5_error_code ipadb_check_logon_info(krb5_context context, |
| 1614 | krb5_data origin_realm, |
| 1615 | krb5_data *pac_blob) |
| 1616 | { |
| 1617 | struct PAC_LOGON_INFO_CTR info; |
| 1618 | krb5_error_code kerr; |
| 1619 | TALLOC_CTX *tmpctx; |
| 1620 | |
| 1621 | tmpctx = talloc_new(NULL)talloc_named_const(((void*)0), 0, "talloc_new: " "ipa_kdb_mspac.c" ":" "1621"); |
| 1622 | if (!tmpctx) { |
| 1623 | return ENOMEM12; |
| 1624 | } |
| 1625 | |
| 1626 | kerr = get_logon_info(context, tmpctx, pac_blob, &info); |
| 1627 | if (kerr) { |
| 1628 | goto done; |
| 1629 | } |
| 1630 | |
| 1631 | kerr = filter_logon_info(context, tmpctx, origin_realm, &info); |
| 1632 | if (kerr) { |
| 1633 | goto done; |
| 1634 | } |
| 1635 | |
| 1636 | kerr = add_local_groups(context, tmpctx, &info); |
| 1637 | if (kerr) { |
| 1638 | goto done; |
| 1639 | } |
| 1640 | |
| 1641 | kerr = save_logon_info(context, tmpctx, &info, pac_blob); |
| 1642 | if (kerr) { |
| 1643 | goto done; |
| 1644 | } |
| 1645 | |
| 1646 | done: |
| 1647 | talloc_free(tmpctx)_talloc_free(tmpctx, "ipa_kdb_mspac.c" ":" "1647"); |
| 1648 | return kerr; |
| 1649 | } |
| 1650 | |
| 1651 | static krb5_error_code get_delegation_info(krb5_context context, |
| 1652 | TALLOC_CTX *memctx, krb5_data *pac_blob, |
| 1653 | struct PAC_CONSTRAINED_DELEGATION_CTR *info) |
| 1654 | { |
| 1655 | DATA_BLOB pac_data; |
| 1656 | enum ndr_err_code ndr_err; |
| 1657 | |
| 1658 | pac_data.length = pac_blob->length; |
| 1659 | pac_data.data = (uint8_t *)pac_blob->data; |
| 1660 | |
| 1661 | ndr_err = ndr_pull_union_blob(&pac_data, memctx, info, |
| 1662 | PAC_TYPE_CONSTRAINED_DELEGATION, |
| 1663 | (ndr_pull_flags_fn_t)ndr_pull_PAC_INFO); |
| 1664 | if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)(ndr_err == NDR_ERR_SUCCESS)) { |
| 1665 | return KRB5_KDB_INTERNAL_ERROR(-1780008411L); |
| 1666 | } |
| 1667 | |
| 1668 | return 0; |
| 1669 | } |
| 1670 | |
| 1671 | static krb5_error_code save_delegation_info(krb5_context context, |
| 1672 | TALLOC_CTX *memctx, |
| 1673 | struct PAC_CONSTRAINED_DELEGATION_CTR *info, |
| 1674 | krb5_data *pac_blob) |
| 1675 | { |
| 1676 | DATA_BLOB pac_data; |
| 1677 | enum ndr_err_code ndr_err; |
| 1678 | |
| 1679 | ndr_err = ndr_push_union_blob(&pac_data, memctx, info, |
| 1680 | PAC_TYPE_CONSTRAINED_DELEGATION, |
| 1681 | (ndr_push_flags_fn_t)ndr_push_PAC_INFO); |
| 1682 | if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)(ndr_err == NDR_ERR_SUCCESS)) { |
| 1683 | return KRB5_KDB_INTERNAL_ERROR(-1780008411L); |
| 1684 | } |
| 1685 | |
| 1686 | free(pac_blob->data); |
| 1687 | pac_blob->data = malloc(pac_data.length); |
| 1688 | if (pac_blob->data == NULL((void*)0)) { |
| 1689 | pac_blob->length = 0; |
| 1690 | return ENOMEM12; |
| 1691 | } |
| 1692 | memcpy(pac_blob->data, pac_data.data, pac_data.length); |
| 1693 | pac_blob->length = pac_data.length; |
| 1694 | |
| 1695 | return 0; |
| 1696 | } |
| 1697 | |
| 1698 | static krb5_error_code ipadb_add_transited_service(krb5_context context, |
| 1699 | krb5_db_entry *proxy, |
| 1700 | krb5_db_entry *server, |
| 1701 | krb5_pac old_pac, |
| 1702 | krb5_pac new_pac) |
| 1703 | { |
| 1704 | struct PAC_CONSTRAINED_DELEGATION_CTR info; |
| 1705 | krb5_data pac_blob = { 0 , 0, NULL((void*)0) }; |
| 1706 | krb5_error_code kerr; |
| 1707 | TALLOC_CTX *tmpctx; |
| 1708 | uint32_t i; |
| 1709 | char *tmpstr; |
| 1710 | |
| 1711 | /* When proxy is NULL, authdata flag on the service principal was cleared |
| 1712 | * by an admin. We don't generate MS-PAC in this case */ |
| 1713 | if (proxy == NULL((void*)0)) { |
| 1714 | return 0; |
| 1715 | } |
| 1716 | |
| 1717 | tmpctx = talloc_new(NULL)talloc_named_const(((void*)0), 0, "talloc_new: " "ipa_kdb_mspac.c" ":" "1717"); |
| 1718 | if (!tmpctx) { |
| 1719 | kerr = ENOMEM12; |
| 1720 | goto done; |
| 1721 | } |
| 1722 | |
| 1723 | kerr = krb5_pac_get_buffer(context, old_pac, |
| 1724 | KRB5_PAC_DELEGATION_INFO11, &pac_blob); |
| 1725 | if (kerr != 0 && kerr != ENOENT2) { |
| 1726 | goto done; |
| 1727 | } |
| 1728 | |
| 1729 | if (pac_blob.length != 0) { |
| 1730 | kerr = get_delegation_info(context, tmpctx, &pac_blob, &info); |
| 1731 | if (kerr != 0) { |
| 1732 | goto done; |
| 1733 | } |
| 1734 | } else { |
| 1735 | info.info = talloc_zero(tmpctx, struct PAC_CONSTRAINED_DELEGATION)(struct PAC_CONSTRAINED_DELEGATION *)_talloc_zero(tmpctx, sizeof (struct PAC_CONSTRAINED_DELEGATION), "struct PAC_CONSTRAINED_DELEGATION" ); |
| 1736 | if (!info.info) { |
| 1737 | kerr = ENOMEM12; |
| 1738 | goto done; |
| 1739 | } |
| 1740 | } |
| 1741 | |
| 1742 | krb5_free_data_contents(context, &pac_blob); |
| 1743 | memset(&pac_blob, 0, sizeof(krb5_data)); |
| 1744 | |
| 1745 | kerr = krb5_unparse_name(context, proxy->princ, &tmpstr); |
| 1746 | if (kerr != 0) { |
| 1747 | goto done; |
| 1748 | } |
| 1749 | |
| 1750 | info.info->proxy_target.string = talloc_strdup(tmpctx, tmpstr); |
| 1751 | krb5_free_unparsed_name(context, tmpstr); |
| 1752 | if (!info.info->proxy_target.string) { |
| 1753 | kerr = ENOMEM12; |
| 1754 | goto done; |
| 1755 | } |
| 1756 | |
| 1757 | i = info.info->num_transited_services; |
| 1758 | |
| 1759 | info.info->transited_services = talloc_realloc(tmpctx,(struct lsa_String *)_talloc_realloc_array(tmpctx, info.info-> transited_services, sizeof(struct lsa_String), i + 1, "struct lsa_String" ) |
| 1760 | info.info->transited_services,(struct lsa_String *)_talloc_realloc_array(tmpctx, info.info-> transited_services, sizeof(struct lsa_String), i + 1, "struct lsa_String" ) |
| 1761 | struct lsa_String, i + 1)(struct lsa_String *)_talloc_realloc_array(tmpctx, info.info-> transited_services, sizeof(struct lsa_String), i + 1, "struct lsa_String" ); |
| 1762 | if (!info.info->transited_services) { |
| 1763 | kerr = ENOMEM12; |
| 1764 | goto done; |
| 1765 | } |
| 1766 | |
| 1767 | kerr = krb5_unparse_name(context, server->princ, &tmpstr); |
| 1768 | if (kerr != 0) { |
| 1769 | goto done; |
| 1770 | } |
| 1771 | |
| 1772 | info.info->transited_services[i].string = talloc_strdup(tmpctx, tmpstr); |
| 1773 | krb5_free_unparsed_name(context, tmpstr); |
| 1774 | if (!info.info->transited_services[i].string) { |
| 1775 | kerr = ENOMEM12; |
| 1776 | goto done; |
| 1777 | } |
| 1778 | info.info->num_transited_services = i + 1; |
| 1779 | |
| 1780 | kerr = save_delegation_info(context, tmpctx, &info, &pac_blob); |
| 1781 | if (kerr != 0) { |
| 1782 | goto done; |
| 1783 | } |
| 1784 | |
| 1785 | kerr = krb5_pac_add_buffer(context, new_pac, |
| 1786 | KRB5_PAC_DELEGATION_INFO11, &pac_blob); |
| 1787 | if (kerr) { |
| 1788 | goto done; |
| 1789 | } |
| 1790 | |
| 1791 | done: |
| 1792 | krb5_free_data_contents(context, &pac_blob); |
| 1793 | talloc_free(tmpctx)_talloc_free(tmpctx, "ipa_kdb_mspac.c" ":" "1793"); |
| 1794 | return kerr; |
| 1795 | } |
| 1796 | |
| 1797 | static krb5_error_code ipadb_verify_pac(krb5_context context, |
| 1798 | unsigned int flags, |
| 1799 | krb5_const_principal client_princ, |
| 1800 | krb5_db_entry *proxy, |
| 1801 | krb5_db_entry *server, |
| 1802 | krb5_db_entry *krbtgt, |
| 1803 | krb5_keyblock *server_key, |
| 1804 | krb5_keyblock *krbtgt_key, |
| 1805 | krb5_timestamp authtime, |
| 1806 | krb5_authdata **authdata, |
| 1807 | krb5_pac *pac) |
| 1808 | { |
| 1809 | krb5_keyblock *srv_key = NULL((void*)0); |
| 1810 | krb5_keyblock *priv_key = NULL((void*)0); |
| 1811 | krb5_error_code kerr; |
| 1812 | krb5_ui_4 *types = NULL((void*)0); |
| 1813 | size_t num_buffers; |
| 1814 | krb5_pac old_pac = NULL((void*)0); |
| 1815 | krb5_pac new_pac = NULL((void*)0); |
| 1816 | krb5_data data; |
| 1817 | krb5_data pac_blob = { 0 , 0, NULL((void*)0)}; |
| 1818 | bool_Bool is_cross_realm = false0; |
| 1819 | size_t i; |
| 1820 | |
| 1821 | kerr = krb5_pac_parse(context, |
| 1822 | authdata[0]->contents, |
| 1823 | authdata[0]->length, |
| 1824 | &old_pac); |
| 1825 | if (kerr) { |
| 1826 | goto done; |
| 1827 | } |
| 1828 | |
| 1829 | /* for cross realm trusts cases we need to check the right checksum. |
| 1830 | * when the PAC is signed by our realm, we can always just check it |
| 1831 | * passing our realm krbtgt key as the kdc checksum key (privsvr). |
| 1832 | * But when a trusted realm passes us a PAC the kdc checksum is |
| 1833 | * generated with that realm krbtgt key, so we need to use the cross |
| 1834 | * realm krbtgt to check the 'server' checksum instead. */ |
| 1835 | if (is_cross_realm_krbtgt(krbtgt->princ)) { |
| 1836 | /* krbtgt from a trusted realm */ |
| 1837 | is_cross_realm = true1; |
| 1838 | |
| 1839 | srv_key = krbtgt_key; |
| 1840 | |
| 1841 | } else { |
| 1842 | /* krbtgt from our own realm */ |
| 1843 | priv_key = krbtgt_key; |
| 1844 | } |
| 1845 | |
| 1846 | /* only pass with_realm TRUE when it is cross-realm ticket and S4U |
| 1847 | * extension (S4U2Self or S4U2Proxy (RBCD)) was requested */ |
| 1848 | kerr = krb5_pac_verify_ext(context, old_pac, authtime, |
| 1849 | client_princ, srv_key, priv_key, |
| 1850 | (is_cross_realm && |
| 1851 | (flags & KRB5_KDB_FLAG_PROTOCOL_TRANSITION0x00000100))); |
| 1852 | if (kerr) { |
| 1853 | goto done; |
| 1854 | } |
| 1855 | |
| 1856 | /* Now that the PAC is verified augment it with additional info if |
| 1857 | * it is coming from a different realm */ |
| 1858 | if (is_cross_realm) { |
| 1859 | kerr = krb5_pac_get_buffer(context, old_pac, |
| 1860 | KRB5_PAC_LOGON_INFO1, &pac_blob); |
| 1861 | if (kerr != 0) { |
| 1862 | goto done; |
| 1863 | } |
| 1864 | |
| 1865 | kerr = ipadb_check_logon_info(context, client_princ->realm, &pac_blob); |
| 1866 | if (kerr != 0) { |
| 1867 | goto done; |
| 1868 | } |
| 1869 | } |
| 1870 | /* extract buffers and rebuilt pac from scratch so that when re-signing |
| 1871 | * with a different cksum type does not cause issues due to mismatching |
| 1872 | * signature buffer lengths */ |
| 1873 | kerr = krb5_pac_init(context, &new_pac); |
| 1874 | if (kerr) { |
| 1875 | goto done; |
| 1876 | } |
| 1877 | |
| 1878 | kerr = krb5_pac_get_types(context, old_pac, &num_buffers, &types); |
| 1879 | if (kerr) { |
| 1880 | goto done; |
| 1881 | } |
| 1882 | |
| 1883 | for (i = 0; i < num_buffers; i++) { |
| 1884 | if (types[i] == KRB5_PAC_SERVER_CHECKSUM6 || |
| 1885 | types[i] == KRB5_PAC_PRIVSVR_CHECKSUM7 || |
| 1886 | types[i] == KRB5_PAC_CLIENT_INFO10) { |
| 1887 | continue; |
| 1888 | } |
| 1889 | |
| 1890 | if (types[i] == KRB5_PAC_LOGON_INFO1 && |
| 1891 | pac_blob.length != 0) { |
| 1892 | kerr = krb5_pac_add_buffer(context, new_pac, types[i], &pac_blob); |
| 1893 | if (kerr) { |
| 1894 | krb5_pac_free(context, new_pac); |
| 1895 | goto done; |
| 1896 | } |
| 1897 | |
| 1898 | continue; |
| 1899 | } |
| 1900 | |
| 1901 | if (types[i] == KRB5_PAC_DELEGATION_INFO11 && |
| 1902 | (flags & KRB5_KDB_FLAG_CONSTRAINED_DELEGATION0x00000200)) { |
| 1903 | /* skip it here, we will add it explicitly later */ |
| 1904 | continue; |
| 1905 | } |
| 1906 | |
| 1907 | kerr = krb5_pac_get_buffer(context, old_pac, types[i], &data); |
| 1908 | if (kerr == 0) { |
| 1909 | kerr = krb5_pac_add_buffer(context, new_pac, types[i], &data); |
| 1910 | krb5_free_data_contents(context, &data); |
| 1911 | } |
| 1912 | if (kerr) { |
| 1913 | krb5_pac_free(context, new_pac); |
| 1914 | goto done; |
| 1915 | } |
| 1916 | } |
| 1917 | |
| 1918 | if (flags & KRB5_KDB_FLAG_CONSTRAINED_DELEGATION0x00000200) { |
| 1919 | if (proxy == NULL((void*)0)) { |
| 1920 | *pac = NULL((void*)0); |
| 1921 | kerr = 0; |
| 1922 | goto done; |
| 1923 | } |
| 1924 | |
| 1925 | kerr = ipadb_add_transited_service(context, proxy, server, |
| 1926 | old_pac, new_pac); |
| 1927 | if (kerr) { |
| 1928 | krb5_pac_free(context, new_pac); |
| 1929 | goto done; |
| 1930 | } |
| 1931 | } |
| 1932 | |
| 1933 | *pac = new_pac; |
| 1934 | |
| 1935 | done: |
| 1936 | krb5_free_authdata(context, authdata); |
| 1937 | krb5_pac_free(context, old_pac); |
| 1938 | krb5_free_data_contents(context, &pac_blob); |
| 1939 | free(types); |
| 1940 | return kerr; |
| 1941 | } |
| 1942 | |
| 1943 | static krb5_error_code ipadb_sign_pac(krb5_context context, |
| 1944 | unsigned int flags, |
| 1945 | krb5_const_principal client_princ, |
| 1946 | krb5_db_entry *server, |
| 1947 | krb5_db_entry *krbtgt, |
| 1948 | krb5_keyblock *server_key, |
| 1949 | krb5_keyblock *krbtgt_key, |
| 1950 | krb5_timestamp authtime, |
| 1951 | krb5_pac pac, |
| 1952 | krb5_data *pac_data) |
| 1953 | { |
| 1954 | krb5_keyblock *right_krbtgt_signing_key = NULL((void*)0); |
| 1955 | krb5_key_data *right_krbtgt_key; |
| 1956 | krb5_db_entry *right_krbtgt = NULL((void*)0); |
| 1957 | krb5_principal krbtgt_princ = NULL((void*)0); |
| 1958 | krb5_error_code kerr; |
| 1959 | char *princ = NULL((void*)0); |
| 1960 | bool_Bool is_issuing_referral = false0; |
| 1961 | int ret; |
| 1962 | |
| 1963 | /* for cross realm trusts cases we need to sign with the right key. |
| 1964 | * we need to fetch the right key on our own until the DAL is fixed |
| 1965 | * to pass us separate check tgt keys and sign tgt keys */ |
| 1966 | |
| 1967 | /* We can only ever create the kdc checksum with our realm tgt key. |
| 1968 | * So, if we get a cross realm tgt we have to fetch our realm tgt |
| 1969 | * instead. */ |
| 1970 | if (is_cross_realm_krbtgt(krbtgt->princ)) { |
| 1971 | |
| 1972 | ret = asprintf(&princ, "krbtgt/%.*s@%.*s", |
| 1973 | server->princ->realm.length, |
| 1974 | server->princ->realm.data, |
| 1975 | server->princ->realm.length, |
| 1976 | server->princ->realm.data); |
| 1977 | if (ret == -1) { |
| 1978 | princ = NULL((void*)0); |
| 1979 | kerr = ENOMEM12; |
| 1980 | goto done; |
| 1981 | } |
| 1982 | |
| 1983 | kerr = krb5_parse_name(context, princ, &krbtgt_princ); |
| 1984 | if (kerr) { |
| 1985 | goto done; |
| 1986 | } |
| 1987 | |
| 1988 | kerr = ipadb_get_principal(context, krbtgt_princ, 0, &right_krbtgt); |
| 1989 | if (kerr) { |
| 1990 | goto done; |
| 1991 | } |
| 1992 | |
| 1993 | kerr = krb5_dbe_find_enctype(context, right_krbtgt, |
| 1994 | -1, -1, 0, &right_krbtgt_key); |
| 1995 | if (kerr) { |
| 1996 | goto done; |
| 1997 | } |
| 1998 | if (!right_krbtgt_key) { |
| 1999 | kerr = KRB5KDC_ERR_S_PRINCIPAL_UNKNOWN(-1765328377L); |
| 2000 | goto done; |
| 2001 | } |
| 2002 | |
| 2003 | right_krbtgt_signing_key = malloc(sizeof(krb5_keyblock)); |
| 2004 | if (!right_krbtgt_signing_key) { |
| 2005 | kerr = ENOMEM12; |
| 2006 | goto done; |
| 2007 | } |
| 2008 | |
| 2009 | kerr = krb5_dbe_decrypt_key_data(context, NULL((void*)0), right_krbtgt_key, |
| 2010 | right_krbtgt_signing_key, NULL((void*)0)); |
| 2011 | if (kerr) { |
| 2012 | goto done; |
| 2013 | } |
| 2014 | |
| 2015 | } else { |
| 2016 | right_krbtgt_signing_key = krbtgt_key; |
| 2017 | } |
| 2018 | |
| 2019 | #ifdef KRB5_KDB_FLAG_ISSUING_REFERRAL0x00004000 |
| 2020 | is_issuing_referral = (flags & KRB5_KDB_FLAG_ISSUING_REFERRAL0x00004000) != 0; |
| 2021 | #endif |
| 2022 | |
| 2023 | /* only pass with_realm TRUE when it is cross-realm ticket and S4U2Self |
| 2024 | * was requested */ |
| 2025 | kerr = krb5_pac_sign_ext(context, pac, authtime, client_princ, server_key, |
| 2026 | right_krbtgt_signing_key, |
| 2027 | (is_issuing_referral && |
| 2028 | (flags & KRB5_KDB_FLAG_PROTOCOL_TRANSITION0x00000100)), |
| 2029 | pac_data); |
| 2030 | |
| 2031 | done: |
| 2032 | free(princ); |
| 2033 | krb5_free_principal(context, krbtgt_princ); |
| 2034 | ipadb_free_principal(context, right_krbtgt); |
| 2035 | if (right_krbtgt_signing_key != krbtgt_key) { |
| 2036 | krb5_free_keyblock(context, right_krbtgt_signing_key); |
| 2037 | } |
| 2038 | return kerr; |
| 2039 | } |
| 2040 | |
| 2041 | void get_authz_data_types(krb5_context context, krb5_db_entry *entry, |
| 2042 | bool_Bool *_with_pac, bool_Bool *_with_pad) |
| 2043 | { |
| 2044 | struct ipadb_e_data *ied = NULL((void*)0); |
| 2045 | struct ipadb_context *ipactx; |
| 2046 | size_t c; |
| 2047 | bool_Bool none_found = false0; |
| 2048 | bool_Bool srv_none_found = false0; |
| 2049 | char **authz_data_list; |
| 2050 | bool_Bool with_pac = false0; |
| 2051 | bool_Bool srv_with_pac = false0; |
| 2052 | bool_Bool with_pad = false0; |
| 2053 | bool_Bool srv_with_pad = false0; |
| 2054 | char *sep; |
| 2055 | krb5_data *service_type; |
| 2056 | char *authz_data_type; |
| 2057 | bool_Bool service_specific; |
| 2058 | |
| 2059 | if (entry != NULL((void*)0)) { |
| 2060 | ied = (struct ipadb_e_data *) entry->e_data; |
| 2061 | } |
| 2062 | |
| 2063 | if (ied == NULL((void*)0) || ied->authz_data == NULL((void*)0)) { |
| 2064 | const struct ipadb_global_config *gcfg = NULL((void*)0); |
| 2065 | char **tmp = NULL((void*)0); |
| 2066 | |
| 2067 | if (context == NULL((void*)0)) { |
| 2068 | krb5_klog_syslog(LOG_ERR3, "Missing Kerberos context, no " \ |
| 2069 | "authorization data will be added."); |
| 2070 | goto done; |
| 2071 | } |
| 2072 | |
| 2073 | ipactx = ipadb_get_context(context); |
| 2074 | if (ipactx != NULL((void*)0)) { |
| 2075 | gcfg = ipadb_get_global_config(ipactx); |
| 2076 | if (gcfg != NULL((void*)0)) |
| 2077 | tmp = gcfg->authz_data; |
| 2078 | } |
| 2079 | if (ipactx == NULL((void*)0) || tmp == NULL((void*)0)) { |
| 2080 | krb5_klog_syslog(LOG_ERR3, "No default authorization data types " \ |
| 2081 | "available, no authorization data will " \ |
| 2082 | "be added."); |
| 2083 | goto done; |
| 2084 | } |
| 2085 | |
| 2086 | authz_data_list = tmp; |
| 2087 | } else { |
| 2088 | authz_data_list = ied->authz_data; |
| 2089 | } |
| 2090 | |
| 2091 | |
| 2092 | for (c = 0; authz_data_list[c]; c++) { |
| 2093 | service_specific = false0; |
| 2094 | authz_data_type = authz_data_list[c]; |
| 2095 | sep = strchr(authz_data_list[c], ':'); |
| 2096 | if (sep != NULL((void*)0) && entry != NULL((void*)0)) { |
| 2097 | if (entry->princ == NULL((void*)0)) { |
| 2098 | krb5_klog_syslog(LOG_ERR3, "Missing principal in database " |
| 2099 | "entry, no authorization data will " \ |
| 2100 | "be added."); |
| 2101 | goto done; |
| 2102 | } |
| 2103 | |
| 2104 | service_type = krb5_princ_component(context, entry->princ, 0)(((0) < (entry->princ)->length) ? (entry->princ)-> data + (0) : ((void*)0)); |
| 2105 | if (service_type == NULL((void*)0)) { |
| 2106 | krb5_klog_syslog(LOG_ERR3, "Missing service type in database " |
| 2107 | "entry, no authorization data will " \ |
| 2108 | "be added."); |
| 2109 | goto done; |
| 2110 | } |
| 2111 | |
| 2112 | if (service_type->length == (sep - authz_data_list[c]) && |
| 2113 | strncmp(authz_data_list[c], service_type->data, |
| 2114 | service_type->length) == 0) { |
| 2115 | service_specific = true1; |
| 2116 | authz_data_type = sep + 1; |
| 2117 | } else { |
| 2118 | /* Service specific default does not apply, skipping this |
| 2119 | * entry. */ |
| 2120 | continue; |
| 2121 | } |
| 2122 | } |
| 2123 | |
| 2124 | if (strcmp(authz_data_type, AUTHZ_DATA_TYPE_PAC"MS-PAC") == 0) { |
| 2125 | if (service_specific) { |
| 2126 | srv_with_pac = true1; |
| 2127 | } else { |
| 2128 | with_pac = true1; |
| 2129 | } |
| 2130 | } else if (strcmp(authz_data_type, AUTHZ_DATA_TYPE_PAD"PAD") == 0) { |
| 2131 | if (service_specific) { |
| 2132 | srv_with_pad = true1; |
| 2133 | } else { |
| 2134 | with_pad = true1; |
| 2135 | } |
| 2136 | } else if (strcmp(authz_data_type, AUTHZ_DATA_TYPE_NONE"NONE") == 0) { |
| 2137 | if (service_specific) { |
| 2138 | srv_none_found = true1; |
| 2139 | } else { |
| 2140 | none_found = true1; |
| 2141 | } |
| 2142 | } else { |
| 2143 | krb5_klog_syslog(LOG_ERR3, "Ignoring unsupported " \ |
| 2144 | "authorization data type [%s].", |
| 2145 | authz_data_list[c]); |
| 2146 | } |
| 2147 | } |
| 2148 | |
| 2149 | done: |
| 2150 | if (srv_none_found || srv_with_pac || srv_with_pad) { |
| 2151 | none_found = srv_none_found; |
| 2152 | with_pac = srv_with_pac; |
| 2153 | with_pad = srv_with_pad; |
| 2154 | } |
| 2155 | |
| 2156 | if (none_found) { |
| 2157 | with_pac = false0; |
| 2158 | with_pad = false0; |
| 2159 | } |
| 2160 | |
| 2161 | if (_with_pac != NULL((void*)0)) { |
| 2162 | *_with_pac = with_pac; |
| 2163 | } |
| 2164 | if (_with_pad != NULL((void*)0)) { |
| 2165 | *_with_pad = with_pad; |
| 2166 | } |
| 2167 | |
| 2168 | } |
| 2169 | |
| 2170 | krb5_error_code ipadb_sign_authdata(krb5_context context, |
| 2171 | unsigned int flags, |
| 2172 | krb5_const_principal client_princ, |
| 2173 | krb5_db_entry *client, |
| 2174 | krb5_db_entry *server, |
| 2175 | krb5_db_entry *krbtgt, |
| 2176 | krb5_keyblock *client_key, |
| 2177 | krb5_keyblock *server_key, |
| 2178 | krb5_keyblock *krbtgt_key, |
| 2179 | krb5_keyblock *session_key, |
| 2180 | krb5_timestamp authtime, |
| 2181 | krb5_authdata **tgt_auth_data, |
| 2182 | krb5_authdata ***signed_auth_data) |
| 2183 | { |
| 2184 | krb5_const_principal ks_client_princ; |
| 2185 | krb5_authdata **pac_auth_data = NULL((void*)0); |
| 2186 | krb5_authdata *authdata[2] = { NULL((void*)0), NULL((void*)0) }; |
| 2187 | krb5_authdata ad; |
| 2188 | krb5_boolean is_as_req; |
| 2189 | krb5_error_code kerr; |
| 2190 | krb5_pac pac = NULL((void*)0); |
| 2191 | krb5_data pac_data; |
| 2192 | struct ipadb_context *ipactx; |
| 2193 | bool_Bool with_pac; |
| 2194 | bool_Bool with_pad; |
| 2195 | bool_Bool make_ad = false0; |
| 2196 | int result; |
| 2197 | krb5_db_entry *client_entry = NULL((void*)0); |
| 2198 | krb5_boolean is_equal; |
| 2199 | bool_Bool force_reinit_mspac = false0; |
| 2200 | |
| 2201 | |
| 2202 | is_as_req = ((flags & KRB5_KDB_FLAG_CLIENT_REFERRALS_ONLY0x00000040) != 0); |
| 2203 | |
| 2204 | /* When using s4u2proxy client_princ actually refers to the proxied user |
| 2205 | * while client->princ to the proxy service asking for the TGS on behalf |
| 2206 | * of the proxied user. So always use client_princ in preference */ |
| 2207 | if (client_princ != NULL((void*)0)) { |
| 2208 | ks_client_princ = client_princ; |
| 2209 | if (!is_as_req) { |
| 2210 | is_equal = false0; |
| 2211 | if ((client != NULL((void*)0)) && (client->princ != NULL((void*)0))) { |
| 2212 | is_equal = krb5_principal_compare(context, client_princ, client->princ); |
| 2213 | } |
| 2214 | if (!is_equal) { |
| 2215 | kerr = ipadb_get_principal(context, client_princ, flags, &client_entry); |
| 2216 | /* If we didn't find client_princ in our database, it might be: |
| 2217 | * - a principal from another realm, handle it down in ipadb_get/verify_pac() |
| 2218 | */ |
| 2219 | if (kerr != 0) { |
| 2220 | client_entry = NULL((void*)0); |
| 2221 | } |
| 2222 | } |
| 2223 | } |
| 2224 | } else { |
| 2225 | if (client == NULL((void*)0)) { |
| 2226 | *signed_auth_data = NULL((void*)0); |
| 2227 | return 0; |
| 2228 | } |
| 2229 | ks_client_princ = client->princ; |
| 2230 | } |
| 2231 | |
| 2232 | if (client_entry == NULL((void*)0)) client_entry = client; |
| 2233 | |
| 2234 | if (is_as_req) { |
| 2235 | get_authz_data_types(context, client_entry, &with_pac, &with_pad); |
| 2236 | } else { |
| 2237 | get_authz_data_types(context, server, &with_pac, &with_pad); |
| 2238 | } |
| 2239 | |
| 2240 | if (with_pad) { |
| 2241 | krb5_klog_syslog(LOG_ERR3, "PAD authorization data is requested but " \ |
| 2242 | "currently not supported."); |
| 2243 | } |
| 2244 | |
| 2245 | /* we need to create a PAC if we are requested one and this is an AS REQ, |
| 2246 | * or we are doing protocol transition (S4USelf) but not over cross-realm |
| 2247 | */ |
| 2248 | if ((is_as_req && (flags & KRB5_KDB_FLAG_INCLUDE_PAC0x00000020)) || |
| 2249 | ((flags & KRB5_KDB_FLAG_PROTOCOL_TRANSITION0x00000100) && (client != NULL((void*)0)))) { |
| 2250 | make_ad = true1; |
| 2251 | } |
| 2252 | |
| 2253 | if (with_pac && make_ad) { |
| 2254 | |
| 2255 | ipactx = ipadb_get_context(context); |
| 2256 | if (!ipactx) { |
| 2257 | kerr = ENOMEM12; |
| 2258 | goto done; |
| 2259 | } |
| 2260 | |
| 2261 | /* Be aggressive here: special case for discovering range type |
| 2262 | * immediately after establishing the trust by IPA framework. For all |
| 2263 | * other cases call ipadb_reinit_mspac() with force_reinit_mspac set |
| 2264 | * to 'false' to make sure the information about trusted domains is |
| 2265 | * updated on a regular basis for all worker processes. */ |
| 2266 | if ((krb5_princ_size(context, ks_client_princ)(ks_client_princ)->length == 2) && |
| 2267 | (strncmp(krb5_princ_component(context, ks_client_princ, 0)(((0) < (ks_client_princ)->length) ? (ks_client_princ)-> data + (0) : ((void*)0))->data, "HTTP", |
| 2268 | krb5_princ_component(context, ks_client_princ, 0)(((0) < (ks_client_princ)->length) ? (ks_client_princ)-> data + (0) : ((void*)0))->length) == 0) && |
| 2269 | (ulc_casecmp(krb5_princ_component(context, ks_client_princ, 1)(((1) < (ks_client_princ)->length) ? (ks_client_princ)-> data + (1) : ((void*)0))->data, |
| 2270 | krb5_princ_component(context, ks_client_princ, 1)(((1) < (ks_client_princ)->length) ? (ks_client_princ)-> data + (1) : ((void*)0))->length, |
| 2271 | ipactx->kdc_hostname, strlen(ipactx->kdc_hostname), |
| 2272 | NULL((void*)0), NULL((void*)0), &result) == 0)) { |
| 2273 | force_reinit_mspac = true1; |
| 2274 | } |
| 2275 | |
| 2276 | (void)ipadb_reinit_mspac(ipactx, force_reinit_mspac); |
| 2277 | |
| 2278 | kerr = ipadb_get_pac(context, client, flags, &pac); |
| 2279 | if (kerr != 0 && kerr != ENOENT2) { |
| 2280 | goto done; |
| 2281 | } |
| 2282 | } else if (with_pac && !is_as_req) { |
| 2283 | /* find the existing PAC, if present */ |
| 2284 | kerr = krb5_find_authdata(context, tgt_auth_data, NULL((void*)0), |
| 2285 | KRB5_AUTHDATA_WIN2K_PAC128, &pac_auth_data); |
| 2286 | if (kerr != 0) { |
| 2287 | goto done; |
| 2288 | } |
| 2289 | /* check or generate pac data */ |
| 2290 | if ((pac_auth_data == NULL((void*)0)) || (pac_auth_data[0] == NULL((void*)0))) { |
| 2291 | if (flags & KRB5_KDB_FLAG_CONSTRAINED_DELEGATION0x00000200) { |
| 2292 | kerr = ipadb_get_pac(context, client_entry, flags, &pac); |
| 2293 | if (kerr != 0 && kerr != ENOENT2) { |
| 2294 | goto done; |
| 2295 | } |
| 2296 | } |
| 2297 | } else { |
| 2298 | if (pac_auth_data[1] != NULL((void*)0)) { |
| 2299 | kerr = KRB5KDC_ERR_BADOPTION(-1765328371L); /* FIXME: right error ? */ |
| 2300 | goto done; |
| 2301 | } |
| 2302 | |
| 2303 | kerr = ipadb_verify_pac(context, flags, ks_client_princ, client, |
| 2304 | server, krbtgt, server_key, krbtgt_key, |
| 2305 | authtime, pac_auth_data, &pac); |
| 2306 | if (kerr != 0) { |
| 2307 | goto done; |
| 2308 | } |
| 2309 | } |
| 2310 | } |
| 2311 | |
| 2312 | if (pac == NULL((void*)0)) { |
| 2313 | /* No PAC to deal with, proceed */ |
| 2314 | *signed_auth_data = NULL((void*)0); |
| 2315 | kerr = 0; |
| 2316 | goto done; |
| 2317 | } |
| 2318 | |
| 2319 | kerr = ipadb_sign_pac(context, flags, ks_client_princ, server, krbtgt, |
| 2320 | server_key, krbtgt_key, authtime, pac, &pac_data); |
| 2321 | if (kerr != 0) { |
| 2322 | goto done; |
| 2323 | } |
| 2324 | |
| 2325 | /* put in signed data */ |
| 2326 | ad.magic = KV5M_AUTHDATA(-1760647414L); |
| 2327 | ad.ad_type = KRB5_AUTHDATA_WIN2K_PAC128; |
| 2328 | ad.contents = (krb5_octet *)pac_data.data; |
| 2329 | ad.length = pac_data.length; |
| 2330 | |
| 2331 | authdata[0] = &ad; |
| 2332 | |
| 2333 | kerr = krb5_encode_authdata_container(context, |
| 2334 | KRB5_AUTHDATA_IF_RELEVANT1, |
| 2335 | authdata, |
| 2336 | signed_auth_data); |
| 2337 | krb5_free_data_contents(context, &pac_data); |
| 2338 | if (kerr != 0) { |
| 2339 | goto done; |
| 2340 | } |
| 2341 | |
| 2342 | kerr = 0; |
| 2343 | |
| 2344 | done: |
| 2345 | if (client_entry != NULL((void*)0) && client_entry != client) { |
| 2346 | ipadb_free_principal(context, client_entry); |
| 2347 | } |
| 2348 | krb5_pac_free(context, pac); |
| 2349 | return kerr; |
| 2350 | } |
| 2351 | |
| 2352 | static char *get_server_netbios_name(struct ipadb_context *ipactx) |
| 2353 | { |
| 2354 | char hostname[MAXHOSTNAMELEN64 + 1]; /* NOTE: this is 64, too little ? */ |
| 2355 | char *p; |
| 2356 | |
| 2357 | strncpy(hostname, ipactx->kdc_hostname, MAXHOSTNAMELEN64); |
| 2358 | /* May miss termination */ |
| 2359 | hostname[MAXHOSTNAMELEN64] = '\0'; |
| 2360 | for (p = hostname; *p; p++) { |
| 2361 | if (*p == '.') { |
| 2362 | *p = 0; |
| 2363 | break; |
| 2364 | } else { |
| 2365 | *p = toupper(*p); |
| 2366 | } |
| 2367 | } |
| 2368 | |
| 2369 | return strdup(hostname); |
| 2370 | } |
| 2371 | |
| 2372 | void ipadb_mspac_struct_free(struct ipadb_mspac **mspac) |
| 2373 | { |
| 2374 | int i, j; |
| 2375 | |
| 2376 | if (!*mspac) return; |
| 2377 | |
| 2378 | free((*mspac)->flat_domain_name); |
| 2379 | free((*mspac)->flat_server_name); |
| 2380 | free((*mspac)->fallback_group); |
| 2381 | |
| 2382 | if ((*mspac)->num_trusts) { |
| 2383 | for (i = 0; i < (*mspac)->num_trusts; i++) { |
| 2384 | free((*mspac)->trusts[i].domain_name); |
| 2385 | free((*mspac)->trusts[i].flat_name); |
| 2386 | free((*mspac)->trusts[i].domain_sid); |
| 2387 | free((*mspac)->trusts[i].sid_blacklist_incoming); |
| 2388 | free((*mspac)->trusts[i].sid_blacklist_outgoing); |
| 2389 | free((*mspac)->trusts[i].parent_name); |
| 2390 | (*mspac)->trusts[i].parent = NULL((void*)0); |
| 2391 | if ((*mspac)->trusts[i].upn_suffixes) { |
| 2392 | for (j = 0; (*mspac)->trusts[i].upn_suffixes[j]; j++) { |
| 2393 | free((*mspac)->trusts[i].upn_suffixes[j]); |
| 2394 | } |
| 2395 | free((*mspac)->trusts[i].upn_suffixes); |
| 2396 | } |
| 2397 | } |
| 2398 | free((*mspac)->trusts); |
| 2399 | } |
| 2400 | free(*mspac); |
| 2401 | |
| 2402 | *mspac = NULL((void*)0); |
| 2403 | } |
| 2404 | |
| 2405 | krb5_error_code ipadb_adtrusts_fill_sid_blacklist(char **source_sid_blacklist, |
| 2406 | struct dom_sid **result_sids, |
| 2407 | int *result_length) |
| 2408 | { |
| 2409 | int len, i; |
| 2410 | char **source; |
| 2411 | struct dom_sid *sid_blacklist; |
| 2412 | |
| 2413 | if (source_sid_blacklist) { |
| 2414 | source = source_sid_blacklist; |
| 2415 | } else { |
| 2416 | /* Use default hardcoded list */ |
| 2417 | source = ipa_mspac_well_known_sids; |
| 2418 | } |
| 2419 | len = 0; |
| 2420 | for (i = 0; source && source[i]; i++) { |
| 2421 | len++; |
| 2422 | } |
| 2423 | |
| 2424 | sid_blacklist = calloc(len, sizeof(struct dom_sid)); |
| 2425 | if (sid_blacklist == NULL((void*)0)) { |
| 2426 | return ENOMEM12; |
| 2427 | } |
| 2428 | |
| 2429 | for (i = 0; i < len; i++) { |
| 2430 | (void) string_to_sid(source[i], &sid_blacklist[i]); |
| 2431 | } |
| 2432 | |
| 2433 | *result_sids = sid_blacklist; |
| 2434 | *result_length = len; |
| 2435 | return 0; |
| 2436 | } |
| 2437 | |
| 2438 | krb5_error_code ipadb_adtrusts_fill_sid_blacklists(struct ipadb_adtrusts *adtrust, |
| 2439 | char **sid_blacklist_incoming, |
| 2440 | char **sid_blacklist_outgoing) |
| 2441 | { |
| 2442 | krb5_error_code kerr; |
| 2443 | |
| 2444 | kerr = ipadb_adtrusts_fill_sid_blacklist(sid_blacklist_incoming, |
| 2445 | &adtrust->sid_blacklist_incoming, |
| 2446 | &adtrust->len_sid_blacklist_incoming); |
| 2447 | if (kerr) { |
| 2448 | return kerr; |
| 2449 | } |
| 2450 | |
| 2451 | kerr = ipadb_adtrusts_fill_sid_blacklist(sid_blacklist_outgoing, |
| 2452 | &adtrust->sid_blacklist_outgoing, |
| 2453 | &adtrust->len_sid_blacklist_outgoing); |
| 2454 | if (kerr) { |
| 2455 | return kerr; |
| 2456 | } |
| 2457 | |
| 2458 | return 0; |
| 2459 | } |
| 2460 | |
| 2461 | krb5_error_code ipadb_mspac_check_trusted_domains(struct ipadb_context *ipactx) |
| 2462 | { |
| 2463 | char *attrs[] = { NULL((void*)0) }; |
| 2464 | char *filter = "(objectclass=ipaNTTrustedDomain)"; |
| 2465 | char *base = NULL((void*)0); |
| 2466 | LDAPMessage *result = NULL((void*)0); |
| 2467 | int ret; |
| 2468 | |
| 2469 | ret = asprintf(&base, "cn=ad,cn=trusts,%s", ipactx->base); |
| 2470 | if (ret == -1) { |
| 2471 | ret = ENOMEM12; |
| 2472 | goto done; |
| 2473 | } |
| 2474 | |
| 2475 | /* Run a quick search if there is any trust defined */ |
| 2476 | ret = ipadb_simple_search(ipactx, base, LDAP_SCOPE_SUBTREE((ber_int_t) 0x0002), |
| 2477 | filter, attrs, &result); |
| 2478 | |
| 2479 | done: |
| 2480 | ldap_msgfree(result); |
| 2481 | free(base); |
| 2482 | return ret; |
| 2483 | } |
| 2484 | |
| 2485 | static void ipadb_free_sid_blacklists(char ***sid_blacklist_incoming, char ***sid_blacklist_outgoing) |
| 2486 | { |
| 2487 | int i; |
| 2488 | |
| 2489 | if (sid_blacklist_incoming && *sid_blacklist_incoming) { |
| 2490 | for (i = 0; *sid_blacklist_incoming && (*sid_blacklist_incoming)[i]; i++) { |
| 2491 | free((*sid_blacklist_incoming)[i]); |
| 2492 | } |
| 2493 | free(*sid_blacklist_incoming); |
| 2494 | *sid_blacklist_incoming = NULL((void*)0); |
| 2495 | } |
| 2496 | |
| 2497 | if (sid_blacklist_outgoing && *sid_blacklist_outgoing) { |
| 2498 | for (i = 0; *sid_blacklist_outgoing && (*sid_blacklist_outgoing)[i]; i++) { |
| 2499 | free((*sid_blacklist_outgoing)[i]); |
| 2500 | } |
| 2501 | free(*sid_blacklist_outgoing); |
| 2502 | *sid_blacklist_outgoing = NULL((void*)0); |
| 2503 | } |
| 2504 | } |
| 2505 | |
| 2506 | krb5_error_code ipadb_mspac_get_trusted_domains(struct ipadb_context *ipactx) |
| 2507 | { |
| 2508 | struct ipadb_adtrusts *t; |
| 2509 | LDAP *lc = ipactx->lcontext; |
| 2510 | char *attrs[] = { "cn", "ipaNTTrustPartner", "ipaNTFlatName", |
| 2511 | "ipaNTTrustedDomainSID", "ipaNTSIDBlacklistIncoming", |
| 2512 | "ipaNTSIDBlacklistOutgoing", "ipaNTAdditionalSuffixes", NULL((void*)0) }; |
| 2513 | char *filter = "(objectclass=ipaNTTrustedDomain)"; |
| 2514 | krb5_error_code kerr; |
| 2515 | LDAPMessage *res = NULL((void*)0); |
| 2516 | LDAPMessage *le; |
| 2517 | LDAPRDN rdn; |
| 2518 | char *base = NULL((void*)0); |
| 2519 | char *dnstr = NULL((void*)0); |
| 2520 | char *dnl = NULL((void*)0); |
| 2521 | LDAPDN dn = NULL((void*)0); |
| 2522 | char **sid_blacklist_incoming = NULL((void*)0); |
| 2523 | char **sid_blacklist_outgoing = NULL((void*)0); |
| 2524 | int ret, n, i; |
| 2525 | |
| 2526 | ret = asprintf(&base, "cn=ad,cn=trusts,%s", ipactx->base); |
| 2527 | if (ret == -1) { |
| 2528 | ret = ENOMEM12; |
| 2529 | goto done; |
| 2530 | } |
| 2531 | |
| 2532 | kerr = ipadb_simple_search(ipactx, base, LDAP_SCOPE_SUBTREE((ber_int_t) 0x0002), |
| 2533 | filter, attrs, &res); |
| 2534 | if (kerr == KRB5_KDB_NOENTRY(-1780008443L)) { |
| 2535 | /* nothing to do, there are no trusts */ |
| 2536 | ret = 0; |
| 2537 | goto done; |
| 2538 | } else if (kerr != 0) { |
| 2539 | ret = EIO5; |
| 2540 | goto done; |
| 2541 | } |
| 2542 | |
| 2543 | for (le = ldap_first_entry(lc, res); le; le = ldap_next_entry(lc, le)) { |
| 2544 | dnstr = ldap_get_dn(lc, le); |
| 2545 | |
| 2546 | if (dnstr == NULL((void*)0)) { |
| 2547 | ret = ENOMEM12; |
| 2548 | goto done; |
| 2549 | } |
| 2550 | |
| 2551 | n = ipactx->mspac->num_trusts; |
| 2552 | ipactx->mspac->num_trusts++; |
| 2553 | t = realloc(ipactx->mspac->trusts, |
| 2554 | sizeof(struct ipadb_adtrusts) * ipactx->mspac->num_trusts); |
| 2555 | if (!t) { |
| 2556 | ret = ENOMEM12; |
| 2557 | goto done; |
| 2558 | } |
| 2559 | ipactx->mspac->trusts = t; |
| 2560 | |
| 2561 | memset(&t[n], 0, sizeof(t[n])); |
| 2562 | |
| 2563 | ret = ipadb_ldap_attr_to_str(lc, le, "cn", |
| 2564 | &t[n].domain_name); |
| 2565 | if (ret) { |
| 2566 | ret = EINVAL22; |
| 2567 | goto done; |
| 2568 | } |
| 2569 | |
| 2570 | t[n].flat_name = NULL((void*)0); |
| 2571 | ret = ipadb_ldap_attr_to_str(lc, le, "ipaNTFlatName", |
| 2572 | &t[n].flat_name); |
| 2573 | if (ret && ret != ENOENT2) { |
| 2574 | ret = EINVAL22; |
| 2575 | goto done; |
| 2576 | } |
| 2577 | |
| 2578 | t[n].domain_sid = NULL((void*)0); |
| 2579 | ret = ipadb_ldap_attr_to_str(lc, le, "ipaNTTrustedDomainSID", |
| 2580 | &t[n].domain_sid); |
| 2581 | if (ret && ret != ENOENT2) { |
| 2582 | ret = EINVAL22; |
| 2583 | goto done; |
| 2584 | } |
| 2585 | |
| 2586 | ret = string_to_sid(t[n].domain_sid, &t[n].domsid); |
| 2587 | if (ret && t[n].domain_sid != NULL((void*)0)) { |
| 2588 | ret = EINVAL22; |
| 2589 | goto done; |
| 2590 | } |
| 2591 | |
| 2592 | ret = ipadb_ldap_attr_to_strlist(lc, le, "ipaNTAdditionalSuffixes", |
| 2593 | &t[n].upn_suffixes); |
| 2594 | |
| 2595 | if (ret) { |
| 2596 | if (ret == ENOENT2) { |
| 2597 | /* This attribute is optional */ |
| 2598 | ret = 0; |
| 2599 | t[n].upn_suffixes = NULL((void*)0); |
| 2600 | } else { |
| 2601 | ret = EINVAL22; |
| 2602 | goto done; |
| 2603 | } |
| 2604 | } |
| 2605 | |
| 2606 | ret = ipadb_ldap_attr_to_strlist(lc, le, "ipaNTSIDBlacklistIncoming", |
| 2607 | &sid_blacklist_incoming); |
| 2608 | |
| 2609 | if (ret) { |
| 2610 | if (ret == ENOENT2) { |
| 2611 | /* This attribute is optional */ |
| 2612 | ret = 0; |
| 2613 | sid_blacklist_incoming = NULL((void*)0); |
| 2614 | } else { |
| 2615 | ret = EINVAL22; |
| 2616 | goto done; |
| 2617 | } |
| 2618 | } |
| 2619 | |
| 2620 | ret = ipadb_ldap_attr_to_strlist(lc, le, "ipaNTSIDBlacklistOutgoing", |
| 2621 | &sid_blacklist_outgoing); |
| 2622 | |
| 2623 | if (ret) { |
| 2624 | if (ret == ENOENT2) { |
| 2625 | /* This attribute is optional */ |
| 2626 | ret = 0; |
Value stored to 'ret' is never read | |
| 2627 | sid_blacklist_outgoing = NULL((void*)0); |
| 2628 | } else { |
| 2629 | ret = EINVAL22; |
| 2630 | goto done; |
| 2631 | } |
| 2632 | } |
| 2633 | |
| 2634 | ret = ipadb_adtrusts_fill_sid_blacklists(&t[n], |
| 2635 | sid_blacklist_incoming, |
| 2636 | sid_blacklist_outgoing); |
| 2637 | if (ret) { |
| 2638 | goto done; |
| 2639 | } |
| 2640 | ipadb_free_sid_blacklists(&sid_blacklist_incoming, |
| 2641 | &sid_blacklist_outgoing); |
| 2642 | |
| 2643 | /* Parse first two RDNs of the entry to find its parent */ |
| 2644 | dnl = strcasestr(dnstr, base); |
| 2645 | if (dnl == NULL((void*)0)) { |
| 2646 | goto done; |
| 2647 | } |
| 2648 | |
| 2649 | dnl--; dnl[0] = '\0'; |
| 2650 | /* Create a DN, which is now everything before the base, |
| 2651 | * to get list of rdn values -- the last one would be a root domain. |
| 2652 | * Since with cross-forest trust we have to route everything via root |
| 2653 | * domain, that is enough for us to assign parentship. */ |
| 2654 | ret = ldap_str2dn(dnstr, &dn, LDAP_DN_FORMAT_LDAPV30x0010U); |
| 2655 | if (ret) { |
| 2656 | goto done; |
| 2657 | } |
| 2658 | |
| 2659 | rdn = NULL((void*)0); |
| 2660 | for (i = 0; dn[i] != NULL((void*)0); i++) { |
| 2661 | rdn = dn[i]; |
| 2662 | } |
| 2663 | |
| 2664 | /* We should have a single AVA in the domain RDN */ |
| 2665 | if (rdn == NULL((void*)0)) { |
| 2666 | ldap_dnfree(dn); |
| 2667 | ret = EINVAL22; |
| 2668 | goto done; |
| 2669 | } |
| 2670 | |
| 2671 | t[n].parent_name = strndup(rdn[0]->la_value.bv_val, rdn[0]->la_value.bv_len); |
| 2672 | |
| 2673 | ldap_dnfree(dn); |
| 2674 | |
| 2675 | free(dnstr); |
| 2676 | dnstr = NULL((void*)0); |
| 2677 | } |
| 2678 | |
| 2679 | /* Traverse through all trusts and resolve parents */ |
| 2680 | t = ipactx->mspac->trusts; |
| 2681 | for (i = 0; i < ipactx->mspac->num_trusts; i++) { |
| 2682 | if (t[i].parent_name != NULL((void*)0)) { |
| 2683 | for (n = 0; n < ipactx->mspac->num_trusts; n++) { |
| 2684 | if (strcasecmp(t[i].parent_name, t[n].domain_name) == 0) { |
| 2685 | t[i].parent = &t[n]; |
| 2686 | } |
| 2687 | } |
| 2688 | } |
| 2689 | } |
| 2690 | |
| 2691 | ret = 0; |
| 2692 | |
| 2693 | done: |
| 2694 | if (ret != 0) { |
| 2695 | krb5_klog_syslog(LOG_ERR3, "Failed to read list of trusted domains"); |
| 2696 | } |
| 2697 | free(dnstr); |
| 2698 | free(base); |
| 2699 | ipadb_free_sid_blacklists(&sid_blacklist_incoming, |
| 2700 | &sid_blacklist_outgoing); |
| 2701 | ldap_msgfree(res); |
| 2702 | return ret; |
| 2703 | } |
| 2704 | |
| 2705 | krb5_error_code ipadb_reinit_mspac(struct ipadb_context *ipactx, bool_Bool force_reinit) |
| 2706 | { |
| 2707 | char *dom_attrs[] = { "ipaNTFlatName", |
| 2708 | "ipaNTFallbackPrimaryGroup", |
| 2709 | "ipaNTSecurityIdentifier", |
| 2710 | NULL((void*)0) }; |
| 2711 | char *grp_attrs[] = { "ipaNTSecurityIdentifier", NULL((void*)0) }; |
| 2712 | krb5_error_code kerr; |
| 2713 | LDAPMessage *result = NULL((void*)0); |
| 2714 | LDAPMessage *lentry; |
| 2715 | struct dom_sid gsid; |
| 2716 | char *resstr; |
| 2717 | int ret; |
| 2718 | time_t now; |
| 2719 | |
| 2720 | /* Do not update the mspac struct more than once a minute. This would |
| 2721 | * avoid heavy load on the directory server if there are lots of requests |
| 2722 | * from domains which we do not trust. */ |
| 2723 | now = time(NULL((void*)0)); |
| 2724 | |
| 2725 | if (ipactx->mspac != NULL((void*)0) && |
| 2726 | (force_reinit == false0) && |
| 2727 | (now > ipactx->mspac->last_update) && |
| 2728 | (now - ipactx->mspac->last_update) < 60) { |
| 2729 | return 0; |
| 2730 | } |
| 2731 | |
| 2732 | if (ipactx->mspac && ipactx->mspac->num_trusts == 0) { |
| 2733 | /* Check if there is any trust configured. If not, just return |
| 2734 | * and do not re-initialize the MS-PAC structure. */ |
| 2735 | kerr = ipadb_mspac_check_trusted_domains(ipactx); |
| 2736 | if (kerr == KRB5_KDB_NOENTRY(-1780008443L)) { |
| 2737 | kerr = 0; |
| 2738 | goto done; |
| 2739 | } else if (kerr != 0) { |
| 2740 | goto done; |
| 2741 | } |
| 2742 | } |
| 2743 | |
| 2744 | /* clean up in case we had old values around */ |
| 2745 | ipadb_mspac_struct_free(&ipactx->mspac); |
| 2746 | |
| 2747 | ipactx->mspac = calloc(1, sizeof(struct ipadb_mspac)); |
| 2748 | if (!ipactx->mspac) { |
| 2749 | kerr = ENOMEM12; |
| 2750 | goto done; |
| 2751 | } |
| 2752 | |
| 2753 | ipactx->mspac->last_update = now; |
| 2754 | |
| 2755 | kerr = ipadb_simple_search(ipactx, ipactx->base, LDAP_SCOPE_SUBTREE((ber_int_t) 0x0002), |
| 2756 | "(objectclass=ipaNTDomainAttrs)", dom_attrs, |
| 2757 | &result); |
| 2758 | if (kerr == KRB5_KDB_NOENTRY(-1780008443L)) { |
| 2759 | return ENOENT2; |
| 2760 | } else if (kerr != 0) { |
| 2761 | return EIO5; |
| 2762 | } |
| 2763 | |
| 2764 | lentry = ldap_first_entry(ipactx->lcontext, result); |
| 2765 | if (!lentry) { |
| 2766 | kerr = ENOENT2; |
| 2767 | goto done; |
| 2768 | } |
| 2769 | |
| 2770 | ret = ipadb_ldap_attr_to_str(ipactx->lcontext, lentry, |
| 2771 | "ipaNTFlatName", |
| 2772 | &ipactx->mspac->flat_domain_name); |
| 2773 | if (ret) { |
| 2774 | kerr = ret; |
| 2775 | goto done; |
| 2776 | } |
| 2777 | |
| 2778 | ret = ipadb_ldap_attr_to_str(ipactx->lcontext, lentry, |
| 2779 | "ipaNTSecurityIdentifier", |
| 2780 | &resstr); |
| 2781 | if (ret) { |
| 2782 | kerr = ret; |
| 2783 | goto done; |
| 2784 | } |
| 2785 | |
| 2786 | ret = string_to_sid(resstr, &ipactx->mspac->domsid); |
| 2787 | if (ret) { |
| 2788 | kerr = ret; |
| 2789 | free(resstr); |
| 2790 | goto done; |
| 2791 | } |
| 2792 | free(resstr); |
| 2793 | |
| 2794 | free(ipactx->mspac->flat_server_name); |
| 2795 | ipactx->mspac->flat_server_name = get_server_netbios_name(ipactx); |
| 2796 | if (!ipactx->mspac->flat_server_name) { |
| 2797 | kerr = ENOMEM12; |
| 2798 | goto done; |
| 2799 | } |
| 2800 | |
| 2801 | ret = ipadb_ldap_attr_to_str(ipactx->lcontext, lentry, |
| 2802 | "ipaNTFallbackPrimaryGroup", |
| 2803 | &ipactx->mspac->fallback_group); |
| 2804 | if (ret && ret != ENOENT2) { |
| 2805 | kerr = ret; |
| 2806 | goto done; |
| 2807 | } |
| 2808 | |
| 2809 | /* result and lentry not valid any more from here on */ |
| 2810 | ldap_msgfree(result); |
| 2811 | result = NULL((void*)0); |
| 2812 | lentry = NULL((void*)0); |
| 2813 | |
| 2814 | if (ret != ENOENT2) { |
| 2815 | kerr = ipadb_simple_search(ipactx, ipactx->mspac->fallback_group, |
| 2816 | LDAP_SCOPE_BASE((ber_int_t) 0x0000), |
| 2817 | "(objectclass=posixGroup)", |
| 2818 | grp_attrs, &result); |
| 2819 | if (kerr && kerr != KRB5_KDB_NOENTRY(-1780008443L)) { |
| 2820 | kerr = ret; |
| 2821 | goto done; |
| 2822 | } |
| 2823 | |
| 2824 | lentry = ldap_first_entry(ipactx->lcontext, result); |
| 2825 | if (!lentry) { |
| 2826 | kerr = ENOENT2; |
| 2827 | goto done; |
| 2828 | } |
| 2829 | |
| 2830 | if (kerr == 0) { |
| 2831 | ret = ipadb_ldap_attr_to_str(ipactx->lcontext, lentry, |
| 2832 | "ipaNTSecurityIdentifier", |
| 2833 | &resstr); |
| 2834 | if (ret && ret != ENOENT2) { |
| 2835 | kerr = ret; |
| 2836 | goto done; |
| 2837 | } |
| 2838 | if (ret == 0) { |
| 2839 | ret = string_to_sid(resstr, &gsid); |
| 2840 | if (ret) { |
| 2841 | free(resstr); |
| 2842 | kerr = ret; |
| 2843 | goto done; |
| 2844 | } |
| 2845 | ret = sid_split_rid(&gsid, &ipactx->mspac->fallback_rid); |
| 2846 | if (ret) { |
| 2847 | free(resstr); |
| 2848 | kerr = ret; |
| 2849 | goto done; |
| 2850 | } |
| 2851 | free(resstr); |
| 2852 | } |
| 2853 | } |
| 2854 | } |
| 2855 | |
| 2856 | kerr = ipadb_mspac_get_trusted_domains(ipactx); |
| 2857 | |
| 2858 | done: |
| 2859 | ldap_msgfree(result); |
| 2860 | return kerr; |
| 2861 | } |
| 2862 | |
| 2863 | krb5_error_code ipadb_check_transited_realms(krb5_context kcontext, |
| 2864 | const krb5_data *tr_contents, |
| 2865 | const krb5_data *client_realm, |
| 2866 | const krb5_data *server_realm) |
| 2867 | { |
| 2868 | struct ipadb_context *ipactx; |
| 2869 | bool_Bool has_transited_contents, has_client_realm, has_server_realm; |
| 2870 | int i; |
| 2871 | krb5_error_code ret; |
| 2872 | |
| 2873 | ipactx = ipadb_get_context(kcontext); |
| 2874 | if (!ipactx || !ipactx->mspac) { |
| 2875 | return KRB5_KDB_DBNOTINITED(-1780008435L); |
| 2876 | } |
| 2877 | |
| 2878 | has_transited_contents = false0; |
| 2879 | has_client_realm = false0; |
| 2880 | has_server_realm = false0; |
| 2881 | |
| 2882 | /* First, compare client or server realm with ours */ |
| 2883 | if (strncasecmp(client_realm->data, ipactx->realm, client_realm->length) == 0) { |
| 2884 | has_client_realm = true1; |
| 2885 | } |
| 2886 | if (strncasecmp(server_realm->data, ipactx->realm, server_realm->length) == 0) { |
| 2887 | has_server_realm = true1; |
| 2888 | } |
| 2889 | |
| 2890 | if ((tr_contents->length == 0) || (tr_contents->data[0] == '\0')) { |
| 2891 | /* For in-realm case allow transition */ |
| 2892 | if (has_client_realm && has_server_realm) { |
| 2893 | return 0; |
| 2894 | } |
| 2895 | /* Since transited realm is empty, we don't need to check for it, it is a direct trust case */ |
| 2896 | has_transited_contents = true1; |
| 2897 | } |
| 2898 | |
| 2899 | if (!ipactx->mspac || !ipactx->mspac->trusts) { |
| 2900 | return KRB5_PLUGIN_NO_HANDLE(-1765328135L); |
| 2901 | } |
| 2902 | |
| 2903 | /* Iterate through list of trusts and check if any of input belongs to any of the trust */ |
| 2904 | for(i=0; i < ipactx->mspac->num_trusts ; i++) { |
| 2905 | if (!has_transited_contents && |
| 2906 | (strncasecmp(tr_contents->data, ipactx->mspac->trusts[i].domain_name, tr_contents->length) == 0)) { |
| 2907 | has_transited_contents = true1; |
| 2908 | } |
| 2909 | if (!has_client_realm && |
| 2910 | (strncasecmp(client_realm->data, ipactx->mspac->trusts[i].domain_name, client_realm->length) == 0)) { |
| 2911 | has_client_realm = true1; |
| 2912 | } |
| 2913 | if (!has_server_realm && |
| 2914 | (strncasecmp(server_realm->data, ipactx->mspac->trusts[i].domain_name, server_realm->length) == 0)) { |
| 2915 | has_server_realm = true1; |
| 2916 | } |
| 2917 | } |
| 2918 | |
| 2919 | /* Tell to KDC that we don't handle this transition so that rules in krb5.conf could play its role */ |
| 2920 | ret = KRB5_PLUGIN_NO_HANDLE(-1765328135L); |
| 2921 | if (has_client_realm && has_transited_contents && has_server_realm) { |
| 2922 | ret = 0; |
| 2923 | } |
| 2924 | return ret; |
| 2925 | } |
| 2926 | |
| 2927 | /* Checks whether a principal's realm is one of trusted domains' realm or NetBIOS name |
| 2928 | * and returns the realm of the matched trusted domain in 'trusted_domain' |
| 2929 | * Returns 0 in case of success and KRB5_KDB_NOENTRY otherwise |
| 2930 | * If DAL driver is not initialized, returns KRB5_KDB_DBNOTINITED */ |
| 2931 | krb5_error_code ipadb_is_princ_from_trusted_realm(krb5_context kcontext, |
| 2932 | const char *test_realm, size_t size, |
| 2933 | char **trusted_realm) |
| 2934 | { |
| 2935 | struct ipadb_context *ipactx; |
| 2936 | int i, j, length; |
| 2937 | const char *name; |
| 2938 | bool_Bool result = false0; |
| 2939 | |
| 2940 | if (test_realm == NULL((void*)0) || test_realm[0] == '\0') { |
| 2941 | return KRB5_KDB_NOENTRY(-1780008443L); |
| 2942 | } |
| 2943 | |
| 2944 | ipactx = ipadb_get_context(kcontext); |
| 2945 | if (!ipactx || !ipactx->mspac) { |
| 2946 | return KRB5_KDB_DBNOTINITED(-1780008435L); |
| 2947 | } |
| 2948 | |
| 2949 | /* First, compare realm with ours, it would not be from a trusted realm then */ |
| 2950 | if (strncasecmp(test_realm, ipactx->realm, size) == 0) { |
| 2951 | return KRB5_KDB_NOENTRY(-1780008443L); |
| 2952 | } |
| 2953 | |
| 2954 | if (!ipactx->mspac || !ipactx->mspac->trusts) { |
| 2955 | return KRB5_KDB_NOENTRY(-1780008443L); |
| 2956 | } |
| 2957 | |
| 2958 | /* Iterate through list of trusts and check if input realm belongs to any of the trust */ |
| 2959 | for(i = 0 ; i < ipactx->mspac->num_trusts ; i++) { |
| 2960 | result = strncasecmp(test_realm, |
| 2961 | ipactx->mspac->trusts[i].domain_name, |
| 2962 | size) == 0; |
| 2963 | |
| 2964 | if (!result && (ipactx->mspac->trusts[i].flat_name != NULL((void*)0))) { |
| 2965 | result = strncasecmp(test_realm, |
| 2966 | ipactx->mspac->trusts[i].flat_name, |
| 2967 | size) == 0; |
| 2968 | } |
| 2969 | |
| 2970 | if (!result && (ipactx->mspac->trusts[i].upn_suffixes != NULL((void*)0))) { |
| 2971 | for (j = 0; ipactx->mspac->trusts[i].upn_suffixes[j]; j++) { |
| 2972 | result = strncasecmp(test_realm, |
| 2973 | ipactx->mspac->trusts[i].upn_suffixes[j], |
| 2974 | size) == 0; |
| 2975 | if (result) |
| 2976 | break; |
| 2977 | } |
| 2978 | } |
| 2979 | |
| 2980 | if (result) { |
| 2981 | /* return the realm if caller supplied a place for it */ |
| 2982 | if (trusted_realm != NULL((void*)0)) { |
| 2983 | name = (ipactx->mspac->trusts[i].parent_name != NULL((void*)0)) ? |
| 2984 | ipactx->mspac->trusts[i].parent_name : |
| 2985 | ipactx->mspac->trusts[i].domain_name; |
| 2986 | length = strlen(name) + 1; |
| 2987 | *trusted_realm = calloc(1, length); |
| 2988 | if (*trusted_realm != NULL((void*)0)) { |
| 2989 | for (j = 0; j < length; j++) { |
| 2990 | (*trusted_realm)[j] = toupper(name[j]); |
| 2991 | } |
| 2992 | } else { |
| 2993 | return KRB5_KDB_NOENTRY(-1780008443L); |
| 2994 | } |
| 2995 | } |
| 2996 | return 0; |
| 2997 | } |
| 2998 | } |
| 2999 | |
| 3000 | return KRB5_KDB_NOENTRY(-1780008443L); |
| 3001 | } |