| 1 | /* |
| 2 | * Copyright (C) 2012-2014 Tobias Brunner |
| 3 | * Copyright (C) 2008 Martin Willi |
| 4 | * HSR Hochschule fuer Technik Rapperswil |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify it |
| 7 | * under the terms of the GNU General Public License as published by the |
| 8 | * Free Software Foundation; either version 2 of the License, or (at your |
| 9 | * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>. |
| 10 | * |
| 11 | * This program is distributed in the hope that it will be useful, but |
| 12 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| 13 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * for more details. |
| 15 | */ |
| 16 | |
| 17 | #include "stroke_config.h" |
| 18 | |
| 19 | #include <daemon.h> |
| 20 | #include <threading/mutex.h> |
| 21 | #include <utils/lexparser.h> |
| 22 | |
| 23 | #include <netdb.h> |
| 24 | |
| 25 | typedef struct private_stroke_config_t private_stroke_config_t; |
| 26 | |
| 27 | /** |
| 28 | * private data of stroke_config |
| 29 | */ |
| 30 | struct private_stroke_config_t { |
| 31 | |
| 32 | /** |
| 33 | * public functions |
| 34 | */ |
| 35 | stroke_config_t public; |
| 36 | |
| 37 | /** |
| 38 | * list of peer_cfg_t |
| 39 | */ |
| 40 | linked_list_t *list; |
| 41 | |
| 42 | /** |
| 43 | * mutex to lock config list |
| 44 | */ |
| 45 | mutex_t *mutex; |
| 46 | |
| 47 | /** |
| 48 | * ca sections |
| 49 | */ |
| 50 | stroke_ca_t *ca; |
| 51 | |
| 52 | /** |
| 53 | * credentials |
| 54 | */ |
| 55 | stroke_cred_t *cred; |
| 56 | |
| 57 | /** |
| 58 | * Virtual IP pool / DNS backend |
| 59 | */ |
| 60 | stroke_attribute_t *attributes; |
| 61 | }; |
| 62 | |
| 63 | METHOD(backend_t, create_peer_cfg_enumerator, enumerator_t*, |
| 64 | private_stroke_config_t *this, identification_t *me, identification_t *other) |
| 65 | { |
| 66 | this->mutex->lock(this->mutex); |
| 67 | return enumerator_create_cleaner(this->list->create_enumerator(this->list), |
| 68 | (void*)this->mutex->unlock, this->mutex); |
| 69 | } |
| 70 | |
| 71 | CALLBACK(ike_filter, bool, |
| 72 | void *data, enumerator_t *orig, va_list args) |
| 73 | { |
| 74 | peer_cfg_t *cfg; |
| 75 | ike_cfg_t **out; |
| 76 | |
| 77 | VA_ARGS_VGET(args, out); |
| 78 | |
| 79 | if (orig->enumerate(orig, &cfg)) |
| 80 | { |
| 81 | *out = cfg->get_ike_cfg(cfg); |
| 82 | return TRUE; |
| 83 | } |
| 84 | return FALSE; |
| 85 | } |
| 86 | |
| 87 | METHOD(backend_t, create_ike_cfg_enumerator, enumerator_t*, |
| 88 | private_stroke_config_t *this, host_t *me, host_t *other) |
| 89 | { |
| 90 | this->mutex->lock(this->mutex); |
| 91 | return enumerator_create_filter(this->list->create_enumerator(this->list), |
| 92 | ike_filter, this->mutex, |
| 93 | (void*)this->mutex->unlock); |
| 94 | } |
| 95 | |
| 96 | METHOD(backend_t, get_peer_cfg_by_name, peer_cfg_t*, |
| 97 | private_stroke_config_t *this, char *name) |
| 98 | { |
| 99 | enumerator_t *e1, *e2; |
| 100 | peer_cfg_t *current, *found = NULL; |
| 101 | child_cfg_t *child; |
| 102 | |
| 103 | this->mutex->lock(this->mutex); |
| 104 | e1 = this->list->create_enumerator(this->list); |
| 105 | while (e1->enumerate(e1, ¤t)) |
| 106 | { |
| 107 | /* compare peer_cfgs name first */ |
| 108 | if (streq(current->get_name(current), name)) |
| 109 | { |
| 110 | found = current; |
| 111 | found->get_ref(found); |
| 112 | break; |
| 113 | } |
| 114 | /* compare all child_cfg names otherwise */ |
| 115 | e2 = current->create_child_cfg_enumerator(current); |
| 116 | while (e2->enumerate(e2, &child)) |
| 117 | { |
| 118 | if (streq(child->get_name(child), name)) |
| 119 | { |
| 120 | found = current; |
| 121 | found->get_ref(found); |
| 122 | break; |
| 123 | } |
| 124 | } |
| 125 | e2->destroy(e2); |
| 126 | if (found) |
| 127 | { |
| 128 | break; |
| 129 | } |
| 130 | } |
| 131 | e1->destroy(e1); |
| 132 | this->mutex->unlock(this->mutex); |
| 133 | return found; |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * parse a proposal string, either into ike_cfg or child_cfg |
| 138 | */ |
| 139 | static bool add_proposals(private_stroke_config_t *this, char *string, |
| 140 | ike_cfg_t *ike_cfg, child_cfg_t *child_cfg, protocol_id_t proto) |
| 141 | { |
| 142 | if (string) |
| 143 | { |
| 144 | char *single; |
| 145 | char *strict; |
| 146 | proposal_t *proposal; |
| 147 | |
| 148 | strict = string + strlen(string) - 1; |
| 149 | if (*strict == '!') |
| 150 | { |
| 151 | *strict = '\0'; |
| 152 | } |
| 153 | else |
| 154 | { |
| 155 | strict = NULL; |
| 156 | } |
| 157 | while ((single = strsep(&string, ","))) |
| 158 | { |
| 159 | proposal = proposal_create_from_string(proto, single); |
| 160 | if (proposal) |
| 161 | { |
| 162 | if (ike_cfg) |
| 163 | { |
| 164 | ike_cfg->add_proposal(ike_cfg, proposal); |
| 165 | } |
| 166 | else |
| 167 | { |
| 168 | child_cfg->add_proposal(child_cfg, proposal); |
| 169 | } |
| 170 | continue; |
| 171 | } |
| 172 | DBG1(DBG_CFG, "skipped invalid proposal string: %s", single); |
| 173 | return FALSE; |
| 174 | } |
| 175 | if (strict) |
| 176 | { |
| 177 | return TRUE; |
| 178 | } |
| 179 | /* add default porposal to the end if not strict */ |
| 180 | } |
| 181 | if (ike_cfg) |
| 182 | { |
| 183 | ike_cfg->add_proposal(ike_cfg, proposal_create_default(proto)); |
| 184 | ike_cfg->add_proposal(ike_cfg, proposal_create_default_aead(proto)); |
| 185 | } |
| 186 | else |
| 187 | { |
| 188 | child_cfg->add_proposal(child_cfg, proposal_create_default(proto)); |
| 189 | child_cfg->add_proposal(child_cfg, proposal_create_default_aead(proto)); |
| 190 | } |
| 191 | return TRUE; |
| 192 | } |
| 193 | |
| 194 | /** |
| 195 | * Check if any addresses in the given string are local |
| 196 | */ |
| 197 | static bool is_local(char *address, bool any_allowed) |
| 198 | { |
| 199 | enumerator_t *enumerator; |
| 200 | host_t *host; |
| 201 | char *token; |
| 202 | bool found = FALSE; |
| 203 | |
| 204 | enumerator = enumerator_create_token(address, ",", " "); |
| 205 | while (enumerator->enumerate(enumerator, &token)) |
| 206 | { |
| 207 | if (!strchr(token, '/')) |
| 208 | { |
| 209 | host = host_create_from_dns(token, 0, 0); |
| 210 | if (host) |
| 211 | { |
| 212 | if (charon->kernel->get_interface(charon->kernel, host, NULL)) |
| 213 | { |
| 214 | found = TRUE; |
| 215 | } |
| 216 | else if (any_allowed && host->is_anyaddr(host)) |
| 217 | { |
| 218 | found = TRUE; |
| 219 | } |
| 220 | host->destroy(host); |
| 221 | if (found) |
| 222 | { |
| 223 | break; |
| 224 | } |
| 225 | } |
| 226 | } |
| 227 | } |
| 228 | enumerator->destroy(enumerator); |
| 229 | return found; |
| 230 | } |
| 231 | |
| 232 | /** |
| 233 | * Swap ends if indicated by left|right |
| 234 | */ |
| 235 | static void swap_ends(stroke_msg_t *msg) |
| 236 | { |
| 237 | if (!lib->settings->get_bool(lib->settings, "%s.plugins.stroke.allow_swap", |
| 238 | TRUE, lib->ns)) |
| 239 | { |
| 240 | return; |
| 241 | } |
| 242 | |
| 243 | if (is_local(msg->add_conn.other.address, FALSE)) |
| 244 | { |
| 245 | stroke_end_t tmp_end; |
| 246 | |
| 247 | DBG2(DBG_CFG, "left is other host, swapping ends"); |
| 248 | tmp_end = msg->add_conn.me; |
| 249 | msg->add_conn.me = msg->add_conn.other; |
| 250 | msg->add_conn.other = tmp_end; |
| 251 | } |
| 252 | else if (!is_local(msg->add_conn.me.address, TRUE)) |
| 253 | { |
| 254 | DBG1(DBG_CFG, "left nor right host is our side, assuming left=local"); |
| 255 | } |
| 256 | } |
| 257 | |
| 258 | /** |
| 259 | * Build an IKE config from a stroke message |
| 260 | */ |
| 261 | static ike_cfg_t *build_ike_cfg(private_stroke_config_t *this, stroke_msg_t *msg) |
| 262 | { |
| 263 | ike_cfg_create_t ike; |
| 264 | ike_cfg_t *ike_cfg; |
| 265 | char me[256], other[256]; |
| 266 | |
| 267 | swap_ends(msg); |
| 268 | |
| 269 | ike = (ike_cfg_create_t){ |
| 270 | .version = msg->add_conn.version, |
| 271 | .local = msg->add_conn.me.address, |
| 272 | .local_port = msg->add_conn.me.ikeport, |
| 273 | .remote = msg->add_conn.other.address, |
| 274 | .remote_port = msg->add_conn.other.ikeport, |
| 275 | .no_certreq = msg->add_conn.other.sendcert == CERT_NEVER_SEND, |
| 276 | .force_encap = msg->add_conn.force_encap, |
| 277 | .fragmentation = msg->add_conn.fragmentation, |
| 278 | .dscp = msg->add_conn.ikedscp, |
| 279 | }; |
| 280 | if (msg->add_conn.me.allow_any) |
| 281 | { |
| 282 | snprintf(me, sizeof(me), "%s,0.0.0.0/0,::/0", |
| 283 | msg->add_conn.me.address); |
| 284 | ike.local = me; |
| 285 | } |
| 286 | if (msg->add_conn.other.allow_any) |
| 287 | { |
| 288 | snprintf(other, sizeof(other), "%s,0.0.0.0/0,::/0", |
| 289 | msg->add_conn.other.address); |
| 290 | ike.remote = other; |
| 291 | } |
| 292 | if (ike.local_port == IKEV2_UDP_PORT) |
| 293 | { |
| 294 | ike.local_port = charon->socket->get_port(charon->socket, FALSE); |
| 295 | } |
| 296 | ike_cfg = ike_cfg_create(&ike); |
| 297 | |
| 298 | if (!add_proposals(this, msg->add_conn.algorithms.ike, ike_cfg, |
| 299 | NULL, PROTO_IKE)) |
| 300 | { |
| 301 | ike_cfg->destroy(ike_cfg); |
| 302 | return NULL; |
| 303 | } |
| 304 | return ike_cfg; |
| 305 | } |
| 306 | |
| 307 | /** |
| 308 | * Add CRL constraint to config |
| 309 | */ |
| 310 | static void build_crl_policy(auth_cfg_t *cfg, bool local, int policy) |
| 311 | { |
| 312 | /* CRL/OCSP policy, for remote config only */ |
| 313 | if (!local) |
| 314 | { |
| 315 | switch (policy) |
| 316 | { |
| 317 | case CRL_STRICT_YES: |
| 318 | /* if yes, we require a GOOD validation */ |
| 319 | cfg->add(cfg, AUTH_RULE_CRL_VALIDATION, VALIDATION_GOOD); |
| 320 | break; |
| 321 | case CRL_STRICT_IFURI: |
| 322 | /* for ifuri, a SKIPPED validation is sufficient */ |
| 323 | cfg->add(cfg, AUTH_RULE_CRL_VALIDATION, VALIDATION_SKIPPED); |
| 324 | break; |
| 325 | default: |
| 326 | break; |
| 327 | } |
| 328 | } |
| 329 | } |
| 330 | |
| 331 | /** |
| 332 | * build authentication config |
| 333 | */ |
| 334 | static auth_cfg_t *build_auth_cfg(private_stroke_config_t *this, |
| 335 | stroke_msg_t *msg, bool local, bool primary) |
| 336 | { |
| 337 | identification_t *identity; |
| 338 | certificate_t *certificate; |
| 339 | char *auth, *id, *pubkey, *cert, *ca, *groups; |
| 340 | stroke_end_t *end, *other_end; |
| 341 | auth_cfg_t *cfg; |
| 342 | bool loose = FALSE; |
| 343 | |
| 344 | /* select strings */ |
| 345 | if (local) |
| 346 | { |
| 347 | end = &msg->add_conn.me; |
| 348 | other_end = &msg->add_conn.other; |
| 349 | } |
| 350 | else |
| 351 | { |
| 352 | end = &msg->add_conn.other; |
| 353 | other_end = &msg->add_conn.me; |
| 354 | } |
| 355 | if (primary) |
| 356 | { |
| 357 | auth = end->auth; |
| 358 | id = end->id; |
| 359 | if (!id) |
| 360 | { /* leftid/rightid fallback to address */ |
| 361 | id = end->address; |
| 362 | } |
| 363 | cert = end->cert; |
| 364 | ca = end->ca; |
| 365 | if (ca && streq(ca, "%same")) |
| 366 | { |
| 367 | ca = other_end->ca; |
| 368 | } |
| 369 | } |
| 370 | else |
| 371 | { |
| 372 | auth = end->auth2; |
| 373 | id = end->id2; |
| 374 | if (local && !id) |
| 375 | { /* leftid2 falls back to leftid */ |
| 376 | id = end->id; |
| 377 | } |
| 378 | cert = end->cert2; |
| 379 | ca = end->ca2; |
| 380 | if (ca && streq(ca, "%same")) |
| 381 | { |
| 382 | ca = other_end->ca2; |
| 383 | } |
| 384 | } |
| 385 | if (id && *id == '%' && !streq(id, "%any") && !streq(id, "%any6")) |
| 386 | { /* has only an effect on rightid/2 */ |
| 387 | loose = !local; |
| 388 | id++; |
| 389 | } |
| 390 | |
| 391 | if (!auth) |
| 392 | { |
| 393 | if (primary) |
| 394 | { |
| 395 | auth = "pubkey"; |
| 396 | } |
| 397 | else |
| 398 | { /* no second authentication round, fine. But load certificates |
| 399 | * for other purposes (EAP-TLS) */ |
| 400 | if (cert) |
| 401 | { |
| 402 | certificate = this->cred->load_peer(this->cred, cert); |
| 403 | if (certificate) |
| 404 | { |
| 405 | certificate->destroy(certificate); |
| 406 | } |
| 407 | } |
| 408 | return NULL; |
| 409 | } |
| 410 | } |
| 411 | |
| 412 | cfg = auth_cfg_create(); |
| 413 | |
| 414 | /* add identity and peer certificate */ |
| 415 | identity = identification_create_from_string(id); |
| 416 | if (cert) |
| 417 | { |
| 418 | enumerator_t *enumerator; |
| 419 | bool has_subject = FALSE; |
| 420 | certificate_t *first = NULL; |
| 421 | |
| 422 | enumerator = enumerator_create_token(cert, ",", " "); |
| 423 | while (enumerator->enumerate(enumerator, &cert)) |
| 424 | { |
| 425 | certificate = this->cred->load_peer(this->cred, cert); |
| 426 | if (certificate) |
| 427 | { |
| 428 | cfg->add(cfg, AUTH_RULE_SUBJECT_CERT, certificate); |
| 429 | if (!first) |
| 430 | { |
| 431 | first = certificate; |
| 432 | } |
| 433 | if (identity->get_type(identity) != ID_ANY && |
| 434 | certificate->has_subject(certificate, identity)) |
| 435 | { |
| 436 | has_subject = TRUE; |
| 437 | } |
| 438 | } |
| 439 | } |
| 440 | enumerator->destroy(enumerator); |
| 441 | |
| 442 | if (first && !has_subject) |
| 443 | { |
| 444 | DBG1(DBG_CFG, " id '%Y' not confirmed by certificate, " |
| 445 | "defaulting to '%Y'", identity, first->get_subject(first)); |
| 446 | identity->destroy(identity); |
| 447 | identity = first->get_subject(first); |
| 448 | identity = identity->clone(identity); |
| 449 | } |
| 450 | } |
| 451 | /* add raw RSA public key */ |
| 452 | pubkey = end->rsakey; |
| 453 | if (pubkey && !streq(pubkey, "") && !streq(pubkey, "%cert")) |
| 454 | { |
| 455 | certificate = this->cred->load_pubkey(this->cred, pubkey, identity); |
| 456 | if (certificate) |
| 457 | { |
| 458 | cfg->add(cfg, AUTH_RULE_SUBJECT_CERT, certificate); |
| 459 | } |
| 460 | } |
| 461 | if (identity->get_type(identity) != ID_ANY) |
| 462 | { |
| 463 | cfg->add(cfg, AUTH_RULE_IDENTITY, identity); |
| 464 | if (loose) |
| 465 | { |
| 466 | cfg->add(cfg, AUTH_RULE_IDENTITY_LOOSE, TRUE); |
| 467 | } |
| 468 | } |
| 469 | else |
| 470 | { |
| 471 | identity->destroy(identity); |
| 472 | } |
| 473 | |
| 474 | /* CA constraint */ |
| 475 | if (ca) |
| 476 | { |
| 477 | identity = identification_create_from_string(ca); |
| 478 | certificate = lib->credmgr->get_cert(lib->credmgr, CERT_X509, |
| 479 | KEY_ANY, identity, TRUE); |
| 480 | identity->destroy(identity); |
| 481 | if (certificate) |
| 482 | { |
| 483 | cfg->add(cfg, AUTH_RULE_CA_CERT, certificate); |
| 484 | } |
| 485 | else |
| 486 | { |
| 487 | DBG1(DBG_CFG, "CA certificate \"%s\" not found, discarding CA " |
| 488 | "constraint", ca); |
| 489 | } |
| 490 | } |
| 491 | |
| 492 | /* groups */ |
| 493 | groups = primary ? end->groups : end->groups2; |
| 494 | if (groups) |
| 495 | { |
| 496 | enumerator_t *enumerator; |
| 497 | char *group; |
| 498 | |
| 499 | enumerator = enumerator_create_token(groups, ",", " "); |
| 500 | while (enumerator->enumerate(enumerator, &group)) |
| 501 | { |
| 502 | cfg->add(cfg, AUTH_RULE_GROUP, |
| 503 | identification_create_from_string(group)); |
| 504 | } |
| 505 | enumerator->destroy(enumerator); |
| 506 | } |
| 507 | |
| 508 | /* certificatePolicies */ |
| 509 | if (end->cert_policy) |
| 510 | { |
| 511 | enumerator_t *enumerator; |
| 512 | char *policy; |
| 513 | |
| 514 | enumerator = enumerator_create_token(end->cert_policy, ",", " "); |
| 515 | while (enumerator->enumerate(enumerator, &policy)) |
| 516 | { |
| 517 | cfg->add(cfg, AUTH_RULE_CERT_POLICY, strdup(policy)); |
| 518 | } |
| 519 | enumerator->destroy(enumerator); |
| 520 | } |
| 521 | |
| 522 | /* authentication method (class, actually) */ |
| 523 | if (strpfx(auth, "ike:") || |
| 524 | strpfx(auth, "pubkey") || |
| 525 | strpfx(auth, "rsa") || |
| 526 | strpfx(auth, "ecdsa") || |
| 527 | strpfx(auth, "bliss")) |
| 528 | { |
| 529 | cfg->add(cfg, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PUBKEY); |
| 530 | build_crl_policy(cfg, local, msg->add_conn.crl_policy); |
| 531 | cfg->add_pubkey_constraints(cfg, auth, TRUE); |
| 532 | } |
| 533 | else if (streq(auth, "psk") || streq(auth, "secret")) |
| 534 | { |
| 535 | cfg->add(cfg, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PSK); |
| 536 | } |
| 537 | else if (strpfx(auth, "xauth")) |
| 538 | { |
| 539 | char *pos; |
| 540 | |
| 541 | pos = strchr(auth, '-'); |
| 542 | if (pos) |
| 543 | { |
| 544 | cfg->add(cfg, AUTH_RULE_XAUTH_BACKEND, strdup(++pos)); |
| 545 | } |
| 546 | cfg->add(cfg, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_XAUTH); |
| 547 | if (msg->add_conn.xauth_identity) |
| 548 | { |
| 549 | cfg->add(cfg, AUTH_RULE_XAUTH_IDENTITY, |
| 550 | identification_create_from_string(msg->add_conn.xauth_identity)); |
| 551 | } |
| 552 | } |
| 553 | else if (strpfx(auth, "eap")) |
| 554 | { |
| 555 | eap_vendor_type_t *type; |
| 556 | char *pos; |
| 557 | |
| 558 | cfg->add(cfg, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_EAP); |
| 559 | /* check for public key constraints for EAP-TLS etc. */ |
| 560 | pos = strchr(auth, ':'); |
| 561 | if (pos) |
| 562 | { |
| 563 | *pos = 0; |
| 564 | cfg->add_pubkey_constraints(cfg, pos + 1, FALSE); |
| 565 | } |
| 566 | type = eap_vendor_type_from_string(auth); |
| 567 | if (type) |
| 568 | { |
| 569 | cfg->add(cfg, AUTH_RULE_EAP_TYPE, type->type); |
| 570 | if (type->vendor) |
| 571 | { |
| 572 | cfg->add(cfg, AUTH_RULE_EAP_VENDOR, type->vendor); |
| 573 | } |
| 574 | free(type); |
| 575 | } |
| 576 | |
| 577 | if (msg->add_conn.eap_identity) |
| 578 | { |
| 579 | if (streq(msg->add_conn.eap_identity, "%identity")) |
| 580 | { |
| 581 | identity = identification_create_from_encoding(ID_ANY, |
| 582 | chunk_empty); |
| 583 | } |
| 584 | else |
| 585 | { |
| 586 | identity = identification_create_from_string( |
| 587 | msg->add_conn.eap_identity); |
| 588 | } |
| 589 | cfg->add(cfg, AUTH_RULE_EAP_IDENTITY, identity); |
| 590 | } |
| 591 | if (msg->add_conn.aaa_identity) |
| 592 | { |
| 593 | cfg->add(cfg, AUTH_RULE_AAA_IDENTITY, |
| 594 | identification_create_from_string(msg->add_conn.aaa_identity)); |
| 595 | } |
| 596 | } |
| 597 | else |
| 598 | { |
| 599 | if (!streq(auth, "any")) |
| 600 | { |
| 601 | DBG1(DBG_CFG, "authentication method %s unknown, fallback to any", |
| 602 | auth); |
| 603 | } |
| 604 | build_crl_policy(cfg, local, msg->add_conn.crl_policy); |
| 605 | } |
| 606 | return cfg; |
| 607 | } |
| 608 | |
| 609 | /** |
| 610 | * build a mem_pool_t from an address range |
| 611 | */ |
| 612 | static mem_pool_t *create_pool_range(char *str) |
| 613 | { |
| 614 | mem_pool_t *pool; |
| 615 | host_t *from, *to; |
| 616 | |
| 617 | if (!host_create_from_range(str, &from, &to)) |
| 618 | { |
| 619 | return NULL; |
| 620 | } |
| 621 | pool = mem_pool_create_range(str, from, to); |
| 622 | from->destroy(from); |
| 623 | to->destroy(to); |
| 624 | return pool; |
| 625 | } |
| 626 | |
| 627 | /** |
| 628 | * build a peer_cfg from a stroke msg |
| 629 | */ |
| 630 | static peer_cfg_t *build_peer_cfg(private_stroke_config_t *this, |
| 631 | stroke_msg_t *msg, ike_cfg_t *ike_cfg) |
| 632 | { |
| 633 | peer_cfg_t *peer_cfg; |
| 634 | auth_cfg_t *auth_cfg; |
| 635 | peer_cfg_create_t peer = { |
| 636 | .cert_policy = msg->add_conn.me.sendcert, |
| 637 | .keyingtries = msg->add_conn.rekey.tries, |
| 638 | .no_mobike = !msg->add_conn.mobike, |
| 639 | .aggressive = msg->add_conn.aggressive, |
| 640 | .push_mode = msg->add_conn.pushmode, |
| 641 | .dpd = msg->add_conn.dpd.delay, |
| 642 | .dpd_timeout = msg->add_conn.dpd.timeout, |
| 643 | }; |
| 644 | |
| 645 | #ifdef VOWIFI_CFG |
| 646 | int handover = FALSE; |
| 647 | #endif |
| 648 | |
| 649 | #ifdef ME |
| 650 | if (msg->add_conn.ikeme.mediation && msg->add_conn.ikeme.mediated_by) |
| 651 | { |
| 652 | DBG1(DBG_CFG, "a mediation connection cannot be a mediated connection " |
| 653 | "at the same time, aborting"); |
| 654 | return NULL; |
| 655 | } |
| 656 | |
| 657 | if (msg->add_conn.ikeme.mediation) |
| 658 | { |
| 659 | peer.mediation = TRUE; |
| 660 | /* force unique connections for mediation connections */ |
| 661 | msg->add_conn.unique = 1; |
| 662 | } |
| 663 | else if (msg->add_conn.ikeme.mediated_by) |
| 664 | { |
| 665 | peer.mediated_by = msg->add_conn.ikeme.mediated_by; |
| 666 | if (msg->add_conn.ikeme.peerid) |
| 667 | { |
| 668 | peer.peer_id = identification_create_from_string( |
| 669 | msg->add_conn.ikeme.peerid); |
| 670 | } |
| 671 | else if (msg->add_conn.other.id) |
| 672 | { |
| 673 | peer.peer_id = identification_create_from_string( |
| 674 | msg->add_conn.other.id); |
| 675 | } |
| 676 | } |
| 677 | #endif /* ME */ |
| 678 | |
| 679 | peer.jitter_time = msg->add_conn.rekey.margin * msg->add_conn.rekey.fuzz / 100; |
| 680 | peer.over_time = msg->add_conn.rekey.margin; |
| 681 | if (msg->add_conn.rekey.reauth) |
| 682 | { |
| 683 | peer.reauth_time = msg->add_conn.rekey.ike_lifetime - peer.over_time; |
| 684 | } |
| 685 | else |
| 686 | { |
| 687 | peer.rekey_time = msg->add_conn.rekey.ike_lifetime - peer.over_time; |
| 688 | } |
| 689 | switch (msg->add_conn.unique) |
| 690 | { |
| 691 | case 1: /* yes */ |
| 692 | case 2: /* replace */ |
| 693 | peer.unique = UNIQUE_REPLACE; |
| 694 | break; |
| 695 | case 3: /* keep */ |
| 696 | peer.unique = UNIQUE_KEEP; |
| 697 | break; |
| 698 | case 4: /* never */ |
| 699 | peer.unique = UNIQUE_NEVER; |
| 700 | break; |
| 701 | default: /* no */ |
| 702 | peer.unique = UNIQUE_NO; |
| 703 | break; |
| 704 | } |
| 705 | if (msg->add_conn.dpd.action == 0) |
| 706 | { /* dpdaction=none disables DPD */ |
| 707 | peer.dpd = 0; |
| 708 | } |
| 709 | |
| 710 | /* other.sourceip is managed in stroke_attributes. If it is set, we define |
| 711 | * the pool name as the connection name, which the attribute provider |
| 712 | * uses to serve pool addresses. */ |
| 713 | peer_cfg = peer_cfg_create(msg->add_conn.name, ike_cfg, &peer); |
| 714 | |
| 715 | if (msg->add_conn.other.sourceip) |
| 716 | { |
| 717 | enumerator_t *enumerator; |
| 718 | char *token; |
| 719 | |
| 720 | enumerator = enumerator_create_token(msg->add_conn.other.sourceip, |
| 721 | ",", " "); |
| 722 | while (enumerator->enumerate(enumerator, &token)) |
| 723 | { |
| 724 | if (streq(token, "%modeconfig") || streq(token, "%modecfg") || |
| 725 | streq(token, "%config") || streq(token, "%cfg") || |
| 726 | streq(token, "%config4") || streq(token, "%config6")) |
| 727 | { |
| 728 | /* empty pool, uses connection name */ |
| 729 | this->attributes->add_pool(this->attributes, |
| 730 | mem_pool_create(msg->add_conn.name, NULL, 0)); |
| 731 | peer_cfg->add_pool(peer_cfg, msg->add_conn.name); |
| 732 | } |
| 733 | else if (*token == '%') |
| 734 | { |
| 735 | /* external named pool */ |
| 736 | peer_cfg->add_pool(peer_cfg, token + 1); |
| 737 | } |
| 738 | else |
| 739 | { |
| 740 | /* in-memory pool, using range or CIDR notation */ |
| 741 | mem_pool_t *pool; |
| 742 | host_t *base; |
| 743 | int bits; |
| 744 | |
| 745 | pool = create_pool_range(token); |
| 746 | if (!pool) |
| 747 | { |
| 748 | base = host_create_from_subnet(token, &bits); |
| 749 | if (base) |
| 750 | { |
| 751 | pool = mem_pool_create(token, base, bits); |
| 752 | base->destroy(base); |
| 753 | } |
| 754 | } |
| 755 | if (pool) |
| 756 | { |
| 757 | this->attributes->add_pool(this->attributes, pool); |
| 758 | peer_cfg->add_pool(peer_cfg, token); |
| 759 | } |
| 760 | else |
| 761 | { |
| 762 | DBG1(DBG_CFG, "IP pool %s invalid, ignored", token); |
| 763 | } |
| 764 | } |
| 765 | } |
| 766 | enumerator->destroy(enumerator); |
| 767 | } |
| 768 | |
| 769 | if (msg->add_conn.me.sourceip && msg->add_conn.other.sourceip) |
| 770 | { |
| 771 | DBG1(DBG_CFG, "'%s' has both left- and rightsourceip, but IKE can " |
| 772 | "negotiate one virtual IP only, ignoring local virtual IP", |
| 773 | msg->add_conn.name); |
| 774 | } |
| 775 | else if (msg->add_conn.me.sourceip) |
| 776 | { |
| 777 | enumerator_t *enumerator; |
| 778 | char *token; |
| 779 | |
| 780 | enumerator = enumerator_create_token(msg->add_conn.me.sourceip, ",", " "); |
| 781 | while (enumerator->enumerate(enumerator, &token)) |
| 782 | { |
| 783 | host_t *vip = NULL; |
| 784 | |
| 785 | if (streq(token, "%modeconfig") || streq(token, "%modecfg") || |
| 786 | streq(token, "%config") || streq(token, "%cfg")) |
| 787 | { /* try to deduce an address family */ |
| 788 | if (msg->add_conn.me.subnets) |
| 789 | { /* use the same family as in local subnet, if any */ |
| 790 | if (strchr(msg->add_conn.me.subnets, '.')) |
| 791 | { |
| 792 | vip = host_create_any(AF_INET); |
| 793 | } |
| 794 | else |
| 795 | { |
| 796 | vip = host_create_any(AF_INET6); |
| 797 | } |
| 798 | } |
| 799 | else if (msg->add_conn.other.subnets) |
| 800 | { /* use the same family as in remote subnet, if any */ |
| 801 | if (strchr(msg->add_conn.other.subnets, '.')) |
| 802 | { |
| 803 | vip = host_create_any(AF_INET); |
| 804 | } |
| 805 | else |
| 806 | { |
| 807 | vip = host_create_any(AF_INET6); |
| 808 | } |
| 809 | } |
| 810 | else |
| 811 | { |
| 812 | char *addr, *next, *hit; |
| 813 | |
| 814 | /* guess virtual IP family based on local address. If |
| 815 | * multiple addresses are specified, we look at the first |
| 816 | * only, as with leftallowany a ::/0 is always appended. */ |
| 817 | addr = ike_cfg->get_my_addr(ike_cfg); |
| 818 | next = strchr(addr, ','); |
| 819 | hit = strchr(addr, ':'); |
| 820 | if (hit && (!next || hit < next)) |
| 821 | { |
| 822 | vip = host_create_any(AF_INET6); |
| 823 | } |
| 824 | else |
| 825 | { |
| 826 | vip = host_create_any(AF_INET); |
| 827 | } |
| 828 | } |
| 829 | } |
| 830 | else if (streq(token, "%config4")) |
| 831 | { |
| 832 | vip = host_create_any(AF_INET); |
| 833 | } |
| 834 | else if (streq(token, "%config6")) |
| 835 | { |
| 836 | vip = host_create_any(AF_INET6); |
| 837 | } |
| 838 | else |
| 839 | { |
| 840 | #ifdef VOWIFI_CFG |
| 841 | if (!handover) |
| 842 | { |
| 843 | DBG1(DBG_CFG, "Handover detected"); |
| 844 | handover = TRUE; |
| 845 | } |
| 846 | #endif |
| 847 | vip = host_create_from_string(token, 0); |
| 848 | if (!vip) |
| 849 | { |
| 850 | DBG1(DBG_CFG, "ignored invalid subnet token: %s", token); |
| 851 | } |
| 852 | } |
| 853 | |
| 854 | if (vip) |
| 855 | { |
| 856 | peer_cfg->add_virtual_ip(peer_cfg, vip); |
| 857 | } |
| 858 | } |
| 859 | enumerator->destroy(enumerator); |
| 860 | } |
| 861 | |
| 862 | /* build leftauth= */ |
| 863 | auth_cfg = build_auth_cfg(this, msg, TRUE, TRUE); |
| 864 | if (auth_cfg) |
| 865 | { |
| 866 | peer_cfg->add_auth_cfg(peer_cfg, auth_cfg, TRUE); |
| 867 | } |
| 868 | else |
| 869 | { /* we require at least one config on our side */ |
| 870 | peer_cfg->destroy(peer_cfg); |
| 871 | return NULL; |
| 872 | } |
| 873 | /* build leftauth2= */ |
| 874 | auth_cfg = build_auth_cfg(this, msg, TRUE, FALSE); |
| 875 | if (auth_cfg) |
| 876 | { |
| 877 | peer_cfg->add_auth_cfg(peer_cfg, auth_cfg, TRUE); |
| 878 | } |
| 879 | /* build rightauth= */ |
| 880 | auth_cfg = build_auth_cfg(this, msg, FALSE, TRUE); |
| 881 | if (auth_cfg) |
| 882 | { |
| 883 | peer_cfg->add_auth_cfg(peer_cfg, auth_cfg, FALSE); |
| 884 | } |
| 885 | /* build rightauth2= */ |
| 886 | auth_cfg = build_auth_cfg(this, msg, FALSE, FALSE); |
| 887 | if (auth_cfg) |
| 888 | { |
| 889 | peer_cfg->add_auth_cfg(peer_cfg, auth_cfg, FALSE); |
| 890 | } |
| 891 | |
| 892 | #ifdef VOWIFI_CFG |
| 893 | DBG1(DBG_CFG, "Operator Type : %d \n", msg->add_conn.opr_type); |
| 894 | peer_cfg->set_operator(peer_cfg, msg->add_conn.opr_type); |
| 895 | |
| 896 | DBG1(DBG_CFG, "Keepalive interval : %d \n", msg->add_conn.keepalive_interval); |
| 897 | peer_cfg->set_keepalive_interval(peer_cfg, msg->add_conn.keepalive_interval); |
| 898 | |
| 899 | peer_cfg->set_interface(peer_cfg, msg->add_conn.interface); |
| 900 | peer_cfg->set_handover(peer_cfg, handover); |
| 901 | peer_cfg->set_use_original_ts(peer_cfg, msg->add_conn.options & OPT_USE_ORIGINAL_TS); |
| 902 | peer_cfg->set_do_rekey_on_roam(peer_cfg, msg->add_conn.options & OPT_DO_REKEY_ON_ROAM); |
| 903 | peer_cfg->set_retransmit_timeout(peer_cfg, msg->add_conn.retransmit.timeout); |
| 904 | peer_cfg->set_retransmit_base(peer_cfg, msg->add_conn.retransmit.base); |
| 905 | peer_cfg->set_retransmit_retries(peer_cfg, msg->add_conn.retransmit.tries); |
| 906 | peer_cfg->set_retransmit_timeout_handover(peer_cfg, msg->add_conn.retransmit_handover.timeout); |
| 907 | peer_cfg->set_retransmit_base_handover(peer_cfg, msg->add_conn.retransmit_handover.base); |
| 908 | peer_cfg->set_retransmit_retries_handover(peer_cfg, msg->add_conn.retransmit_handover.tries); |
| 909 | #endif |
| 910 | return peer_cfg; |
| 911 | } |
| 912 | |
| 913 | /** |
| 914 | * Parse a protoport specifier |
| 915 | */ |
| 916 | static bool parse_protoport(char *token, uint16_t *from_port, |
| 917 | uint16_t *to_port, uint8_t *protocol) |
| 918 | { |
| 919 | char *sep, *port = "", *endptr; |
| 920 | struct protoent *proto; |
| 921 | struct servent *svc; |
| 922 | long int p; |
| 923 | |
| 924 | sep = strrchr(token, ']'); |
| 925 | if (!sep) |
| 926 | { |
| 927 | return FALSE; |
| 928 | } |
| 929 | *sep = '\0'; |
| 930 | |
| 931 | sep = strchr(token, '/'); |
| 932 | if (sep) |
| 933 | { /* protocol/port */ |
| 934 | *sep = '\0'; |
| 935 | port = sep + 1; |
| 936 | } |
| 937 | |
| 938 | if (streq(token, "%any")) |
| 939 | { |
| 940 | *protocol = 0; |
| 941 | } |
| 942 | else |
| 943 | { |
| 944 | proto = getprotobyname(token); |
| 945 | if (proto) |
| 946 | { |
| 947 | *protocol = proto->p_proto; |
| 948 | } |
| 949 | else |
| 950 | { |
| 951 | p = strtol(token, &endptr, 0); |
| 952 | if ((*token && *endptr) || p < 0 || p > 0xff) |
| 953 | { |
| 954 | return FALSE; |
| 955 | } |
| 956 | *protocol = (uint8_t)p; |
| 957 | } |
| 958 | } |
| 959 | if (streq(port, "%any")) |
| 960 | { |
| 961 | *from_port = 0; |
| 962 | *to_port = 0xffff; |
| 963 | } |
| 964 | else if (streq(port, "%opaque")) |
| 965 | { |
| 966 | *from_port = 0xffff; |
| 967 | *to_port = 0; |
| 968 | } |
| 969 | else if (*port) |
| 970 | { |
| 971 | svc = getservbyname(port, NULL); |
| 972 | if (svc) |
| 973 | { |
| 974 | *from_port = *to_port = ntohs(svc->s_port); |
| 975 | } |
| 976 | else |
| 977 | { |
| 978 | p = strtol(port, &endptr, 0); |
| 979 | if (p < 0 || p > 0xffff) |
| 980 | { |
| 981 | return FALSE; |
| 982 | } |
| 983 | *from_port = p; |
| 984 | if (*endptr == '-') |
| 985 | { |
| 986 | port = endptr + 1; |
| 987 | p = strtol(port, &endptr, 0); |
| 988 | if (p < 0 || p > 0xffff) |
| 989 | { |
| 990 | return FALSE; |
| 991 | } |
| 992 | } |
| 993 | *to_port = p; |
| 994 | if (*endptr) |
| 995 | { |
| 996 | return FALSE; |
| 997 | } |
| 998 | } |
| 999 | } |
| 1000 | return TRUE; |
| 1001 | } |
| 1002 | |
| 1003 | /** |
| 1004 | * build a traffic selector from a stroke_end |
| 1005 | */ |
| 1006 | static void add_ts(private_stroke_config_t *this, |
| 1007 | stroke_end_t *end, child_cfg_t *child_cfg, bool local) |
| 1008 | { |
| 1009 | traffic_selector_t *ts; |
| 1010 | bool ts_added = FALSE; |
| 1011 | |
| 1012 | if (end->subnets) |
| 1013 | { |
| 1014 | enumerator_t *enumerator; |
| 1015 | char *subnet, *pos; |
| 1016 | uint16_t from_port, to_port; |
| 1017 | uint8_t proto; |
| 1018 | |
| 1019 | enumerator = enumerator_create_token(end->subnets, ",", " "); |
| 1020 | while (enumerator->enumerate(enumerator, &subnet)) |
| 1021 | { |
| 1022 | from_port = end->from_port; |
| 1023 | to_port = end->to_port; |
| 1024 | proto = end->protocol; |
| 1025 | |
| 1026 | pos = strchr(subnet, '['); |
| 1027 | if (pos) |
| 1028 | { |
| 1029 | *(pos++) = '\0'; |
| 1030 | if (!parse_protoport(pos, &from_port, &to_port, &proto)) |
| 1031 | { |
| 1032 | DBG1(DBG_CFG, "invalid proto/port: %s, skipped subnet", |
| 1033 | pos); |
| 1034 | continue; |
| 1035 | } |
| 1036 | } |
| 1037 | if (streq(subnet, "%dynamic")) |
| 1038 | { |
| 1039 | ts = traffic_selector_create_dynamic(proto, |
| 1040 | from_port, to_port); |
| 1041 | } |
| 1042 | else |
| 1043 | { |
| 1044 | ts = traffic_selector_create_from_cidr(subnet, proto, |
| 1045 | from_port, to_port); |
| 1046 | } |
| 1047 | if (ts) |
| 1048 | { |
| 1049 | child_cfg->add_traffic_selector(child_cfg, local, ts); |
| 1050 | ts_added = TRUE; |
| 1051 | } |
| 1052 | else |
| 1053 | { |
| 1054 | DBG1(DBG_CFG, "invalid subnet: %s, skipped", subnet); |
| 1055 | } |
| 1056 | } |
| 1057 | enumerator->destroy(enumerator); |
| 1058 | } |
| 1059 | if (!ts_added) |
| 1060 | { |
| 1061 | ts = traffic_selector_create_dynamic(end->protocol, |
| 1062 | end->from_port, end->to_port); |
| 1063 | child_cfg->add_traffic_selector(child_cfg, local, ts); |
| 1064 | } |
| 1065 | } |
| 1066 | |
| 1067 | /** |
| 1068 | * map starter magic values to our action type |
| 1069 | */ |
| 1070 | static action_t map_action(int starter_action) |
| 1071 | { |
| 1072 | switch (starter_action) |
| 1073 | { |
| 1074 | case 2: /* =hold */ |
| 1075 | return ACTION_ROUTE; |
| 1076 | case 3: /* =restart */ |
| 1077 | return ACTION_RESTART; |
| 1078 | default: |
| 1079 | return ACTION_NONE; |
| 1080 | } |
| 1081 | } |
| 1082 | |
| 1083 | /** |
| 1084 | * build a child config from the stroke message |
| 1085 | */ |
| 1086 | static child_cfg_t *build_child_cfg(private_stroke_config_t *this, |
| 1087 | stroke_msg_t *msg) |
| 1088 | { |
| 1089 | child_cfg_t *child_cfg; |
| 1090 | bool success; |
| 1091 | child_cfg_create_t child = { |
| 1092 | .lifetime = { |
| 1093 | .time = { |
| 1094 | .life = msg->add_conn.rekey.ipsec_lifetime, |
| 1095 | .rekey = msg->add_conn.rekey.ipsec_lifetime - msg->add_conn.rekey.margin, |
| 1096 | .jitter = msg->add_conn.rekey.margin * msg->add_conn.rekey.fuzz / 100 |
| 1097 | }, |
| 1098 | .bytes = { |
| 1099 | .life = msg->add_conn.rekey.life_bytes, |
| 1100 | .rekey = msg->add_conn.rekey.life_bytes - msg->add_conn.rekey.margin_bytes, |
| 1101 | .jitter = msg->add_conn.rekey.margin_bytes * msg->add_conn.rekey.fuzz / 100 |
| 1102 | }, |
| 1103 | .packets = { |
| 1104 | .life = msg->add_conn.rekey.life_packets, |
| 1105 | .rekey = msg->add_conn.rekey.life_packets - msg->add_conn.rekey.margin_packets, |
| 1106 | .jitter = msg->add_conn.rekey.margin_packets * msg->add_conn.rekey.fuzz / 100 |
| 1107 | }, |
| 1108 | }, |
| 1109 | .mark_in = { |
| 1110 | .value = msg->add_conn.mark_in.value, |
| 1111 | .mask = msg->add_conn.mark_in.mask |
| 1112 | }, |
| 1113 | .mark_out = { |
| 1114 | .value = msg->add_conn.mark_out.value, |
| 1115 | .mask = msg->add_conn.mark_out.mask |
| 1116 | }, |
| 1117 | .reqid = msg->add_conn.reqid, |
| 1118 | .mode = msg->add_conn.mode, |
| 1119 | .options = (msg->add_conn.proxy_mode ? OPT_PROXY_MODE : 0) | |
| 1120 | (msg->add_conn.ipcomp ? OPT_IPCOMP : 0) | |
| 1121 | (msg->add_conn.me.hostaccess ? OPT_HOSTACCESS : 0) | |
| 1122 | (msg->add_conn.install_policy ? 0 : OPT_NO_POLICIES) | |
| 1123 | (msg->add_conn.sha256_96 ? OPT_SHA256_96 : 0), |
| 1124 | .tfc = msg->add_conn.tfc, |
| 1125 | .inactivity = msg->add_conn.inactivity, |
| 1126 | .dpd_action = map_action(msg->add_conn.dpd.action), |
| 1127 | .close_action = map_action(msg->add_conn.close_action), |
| 1128 | .updown = msg->add_conn.me.updown, |
| 1129 | }; |
| 1130 | |
| 1131 | child_cfg = child_cfg_create(msg->add_conn.name, &child); |
| 1132 | if (msg->add_conn.replay_window != -1) |
| 1133 | { |
| 1134 | child_cfg->set_replay_window(child_cfg, msg->add_conn.replay_window); |
| 1135 | } |
| 1136 | add_ts(this, &msg->add_conn.me, child_cfg, TRUE); |
| 1137 | add_ts(this, &msg->add_conn.other, child_cfg, FALSE); |
| 1138 | |
| 1139 | if (msg->add_conn.algorithms.ah) |
| 1140 | { |
| 1141 | success = add_proposals(this, msg->add_conn.algorithms.ah, |
| 1142 | NULL, child_cfg, PROTO_AH); |
| 1143 | } |
| 1144 | else |
| 1145 | { |
| 1146 | success = add_proposals(this, msg->add_conn.algorithms.esp, |
| 1147 | NULL, child_cfg, PROTO_ESP); |
| 1148 | } |
| 1149 | if (!success) |
| 1150 | { |
| 1151 | child_cfg->destroy(child_cfg); |
| 1152 | return NULL; |
| 1153 | } |
| 1154 | return child_cfg; |
| 1155 | } |
| 1156 | |
| 1157 | METHOD(stroke_config_t, add, void, |
| 1158 | private_stroke_config_t *this, stroke_msg_t *msg) |
| 1159 | { |
| 1160 | ike_cfg_t *ike_cfg, *existing_ike; |
| 1161 | peer_cfg_t *peer_cfg, *existing; |
| 1162 | child_cfg_t *child_cfg; |
| 1163 | enumerator_t *enumerator; |
| 1164 | bool use_existing = FALSE; |
| 1165 | |
| 1166 | ike_cfg = build_ike_cfg(this, msg); |
| 1167 | if (!ike_cfg) |
| 1168 | { |
| 1169 | return; |
| 1170 | } |
| 1171 | peer_cfg = build_peer_cfg(this, msg, ike_cfg); |
| 1172 | if (!peer_cfg) |
| 1173 | { |
| 1174 | ike_cfg->destroy(ike_cfg); |
| 1175 | return; |
| 1176 | } |
| 1177 | |
| 1178 | enumerator = create_peer_cfg_enumerator(this, NULL, NULL); |
| 1179 | while (enumerator->enumerate(enumerator, &existing)) |
| 1180 | { |
| 1181 | existing_ike = existing->get_ike_cfg(existing); |
| 1182 | if (existing->equals(existing, peer_cfg) && |
| 1183 | existing_ike->equals(existing_ike, peer_cfg->get_ike_cfg(peer_cfg))) |
| 1184 | { |
| 1185 | use_existing = TRUE; |
| 1186 | peer_cfg->destroy(peer_cfg); |
| 1187 | peer_cfg = existing; |
| 1188 | peer_cfg->get_ref(peer_cfg); |
| 1189 | DBG1(DBG_CFG, "added child to existing configuration '%s'", |
| 1190 | peer_cfg->get_name(peer_cfg)); |
| 1191 | break; |
| 1192 | } |
| 1193 | } |
| 1194 | enumerator->destroy(enumerator); |
| 1195 | |
| 1196 | child_cfg = build_child_cfg(this, msg); |
| 1197 | if (!child_cfg) |
| 1198 | { |
| 1199 | peer_cfg->destroy(peer_cfg); |
| 1200 | return; |
| 1201 | } |
| 1202 | peer_cfg->add_child_cfg(peer_cfg, child_cfg); |
| 1203 | |
| 1204 | if (use_existing) |
| 1205 | { |
| 1206 | peer_cfg->destroy(peer_cfg); |
| 1207 | } |
| 1208 | else |
| 1209 | { |
| 1210 | /* add config to backend */ |
| 1211 | DBG1(DBG_CFG, "added configuration '%s'", msg->add_conn.name); |
| 1212 | this->mutex->lock(this->mutex); |
| 1213 | this->list->insert_last(this->list, peer_cfg); |
| 1214 | this->mutex->unlock(this->mutex); |
| 1215 | } |
| 1216 | } |
| 1217 | |
| 1218 | METHOD(stroke_config_t, del, void, |
| 1219 | private_stroke_config_t *this, stroke_msg_t *msg) |
| 1220 | { |
| 1221 | enumerator_t *enumerator, *children; |
| 1222 | peer_cfg_t *peer; |
| 1223 | child_cfg_t *child; |
| 1224 | bool deleted = FALSE; |
| 1225 | |
| 1226 | this->mutex->lock(this->mutex); |
| 1227 | enumerator = this->list->create_enumerator(this->list); |
| 1228 | while (enumerator->enumerate(enumerator, &peer)) |
| 1229 | { |
| 1230 | bool keep = FALSE; |
| 1231 | |
| 1232 | /* remove any child with such a name */ |
| 1233 | children = peer->create_child_cfg_enumerator(peer); |
| 1234 | while (children->enumerate(children, &child)) |
| 1235 | { |
| 1236 | if (streq(child->get_name(child), msg->del_conn.name)) |
| 1237 | { |
| 1238 | peer->remove_child_cfg(peer, children); |
| 1239 | child->destroy(child); |
| 1240 | deleted = TRUE; |
| 1241 | } |
| 1242 | else |
| 1243 | { |
| 1244 | keep = TRUE; |
| 1245 | } |
| 1246 | } |
| 1247 | children->destroy(children); |
| 1248 | |
| 1249 | /* if peer config has no children anymore, remove it */ |
| 1250 | if (!keep) |
| 1251 | { |
| 1252 | this->list->remove_at(this->list, enumerator); |
| 1253 | peer->destroy(peer); |
| 1254 | } |
| 1255 | } |
| 1256 | enumerator->destroy(enumerator); |
| 1257 | this->mutex->unlock(this->mutex); |
| 1258 | |
| 1259 | if (deleted) |
| 1260 | { |
| 1261 | DBG1(DBG_CFG, "deleted connection '%s'", msg->del_conn.name); |
| 1262 | } |
| 1263 | else |
| 1264 | { |
| 1265 | DBG1(DBG_CFG, "connection '%s' not found", msg->del_conn.name); |
| 1266 | } |
| 1267 | } |
| 1268 | |
| 1269 | METHOD(stroke_config_t, set_user_credentials, void, |
| 1270 | private_stroke_config_t *this, stroke_msg_t *msg, FILE *prompt) |
| 1271 | { |
| 1272 | enumerator_t *enumerator, *children, *remote_auth; |
| 1273 | peer_cfg_t *peer, *found = NULL; |
| 1274 | auth_cfg_t *auth_cfg, *remote_cfg; |
| 1275 | auth_class_t auth_class; |
| 1276 | child_cfg_t *child; |
| 1277 | identification_t *id, *identity, *gw = NULL; |
| 1278 | shared_key_type_t type = SHARED_ANY; |
| 1279 | chunk_t password = chunk_empty; |
| 1280 | |
| 1281 | this->mutex->lock(this->mutex); |
| 1282 | enumerator = this->list->create_enumerator(this->list); |
| 1283 | while (enumerator->enumerate(enumerator, (void**)&peer)) |
| 1284 | { /* find the peer (or child) config with the given name */ |
| 1285 | if (streq(peer->get_name(peer), msg->user_creds.name)) |
| 1286 | { |
| 1287 | found = peer; |
| 1288 | } |
| 1289 | else |
| 1290 | { |
| 1291 | children = peer->create_child_cfg_enumerator(peer); |
| 1292 | while (children->enumerate(children, &child)) |
| 1293 | { |
| 1294 | if (streq(child->get_name(child), msg->user_creds.name)) |
| 1295 | { |
| 1296 | found = peer; |
| 1297 | break; |
| 1298 | } |
| 1299 | } |
| 1300 | children->destroy(children); |
| 1301 | } |
| 1302 | |
| 1303 | if (found) |
| 1304 | { |
| 1305 | break; |
| 1306 | } |
| 1307 | } |
| 1308 | enumerator->destroy(enumerator); |
| 1309 | |
| 1310 | if (!found) |
| 1311 | { |
| 1312 | DBG1(DBG_CFG, " no config named '%s'", msg->user_creds.name); |
| 1313 | fprintf(prompt, "no config named '%s'\n", msg->user_creds.name); |
| 1314 | this->mutex->unlock(this->mutex); |
| 1315 | return; |
| 1316 | } |
| 1317 | |
| 1318 | id = identification_create_from_string(msg->user_creds.username); |
| 1319 | if (strlen(msg->user_creds.username) == 0 || |
| 1320 | !id || id->get_type(id) == ID_ANY) |
| 1321 | { |
| 1322 | DBG1(DBG_CFG, " invalid username '%s'", msg->user_creds.username); |
| 1323 | fprintf(prompt, "invalid username '%s'\n", msg->user_creds.username); |
| 1324 | this->mutex->unlock(this->mutex); |
| 1325 | DESTROY_IF(id); |
| 1326 | return; |
| 1327 | } |
| 1328 | |
| 1329 | /* replace/set the username in the first EAP/XAuth auth_cfg, also look for |
| 1330 | * a suitable remote ID. |
| 1331 | * note that adding the identity here is not fully thread-safe as the |
| 1332 | * peer_cfg and in turn the auth_cfg could be in use. for the default use |
| 1333 | * case (setting user credentials before upping the connection) this will |
| 1334 | * not be a problem, though. */ |
| 1335 | enumerator = found->create_auth_cfg_enumerator(found, TRUE); |
| 1336 | remote_auth = found->create_auth_cfg_enumerator(found, FALSE); |
| 1337 | while (enumerator->enumerate(enumerator, (void**)&auth_cfg)) |
| 1338 | { |
| 1339 | if (remote_auth->enumerate(remote_auth, (void**)&remote_cfg)) |
| 1340 | { /* fall back on rightid, in case aaa_identity is not specified */ |
| 1341 | identity = remote_cfg->get(remote_cfg, AUTH_RULE_IDENTITY); |
| 1342 | if (identity && identity->get_type(identity) != ID_ANY) |
| 1343 | { |
| 1344 | gw = identity; |
| 1345 | } |
| 1346 | } |
| 1347 | |
| 1348 | auth_class = (uintptr_t)auth_cfg->get(auth_cfg, AUTH_RULE_AUTH_CLASS); |
| 1349 | if (auth_class == AUTH_CLASS_EAP || auth_class == AUTH_CLASS_XAUTH) |
| 1350 | { |
| 1351 | if (auth_class == AUTH_CLASS_EAP) |
| 1352 | { |
| 1353 | auth_cfg->add(auth_cfg, AUTH_RULE_EAP_IDENTITY, id->clone(id)); |
| 1354 | /* if aaa_identity is specified use that as remote ID */ |
| 1355 | identity = auth_cfg->get(auth_cfg, AUTH_RULE_AAA_IDENTITY); |
| 1356 | if (identity && identity->get_type(identity) != ID_ANY) |
| 1357 | { |
| 1358 | gw = identity; |
| 1359 | } |
| 1360 | DBG1(DBG_CFG, " configured EAP-Identity %Y", id); |
| 1361 | } |
| 1362 | else |
| 1363 | { |
| 1364 | auth_cfg->add(auth_cfg, AUTH_RULE_XAUTH_IDENTITY, |
| 1365 | id->clone(id)); |
| 1366 | DBG1(DBG_CFG, " configured XAuth username %Y", id); |
| 1367 | } |
| 1368 | type = SHARED_EAP; |
| 1369 | break; |
| 1370 | } |
| 1371 | } |
| 1372 | enumerator->destroy(enumerator); |
| 1373 | remote_auth->destroy(remote_auth); |
| 1374 | /* clone the gw ID before unlocking the mutex */ |
| 1375 | if (gw) |
| 1376 | { |
| 1377 | gw = gw->clone(gw); |
| 1378 | } |
| 1379 | this->mutex->unlock(this->mutex); |
| 1380 | |
| 1381 | if (type == SHARED_ANY) |
| 1382 | { |
| 1383 | DBG1(DBG_CFG, " config '%s' unsuitable for user credentials", |
| 1384 | msg->user_creds.name); |
| 1385 | fprintf(prompt, "config '%s' unsuitable for user credentials\n", |
| 1386 | msg->user_creds.name); |
| 1387 | id->destroy(id); |
| 1388 | DESTROY_IF(gw); |
| 1389 | return; |
| 1390 | } |
| 1391 | |
| 1392 | if (msg->user_creds.password) |
| 1393 | { |
| 1394 | char *pass; |
| 1395 | |
| 1396 | pass = msg->user_creds.password; |
| 1397 | password = chunk_clone(chunk_create(pass, strlen(pass))); |
| 1398 | memwipe(pass, strlen(pass)); |
| 1399 | } |
| 1400 | else |
| 1401 | { /* prompt the user for the password */ |
| 1402 | char buf[256]; |
| 1403 | |
| 1404 | fprintf(prompt, "Password:\n"); |
| 1405 | if (fgets(buf, sizeof(buf), prompt)) |
| 1406 | { |
| 1407 | password = chunk_clone(chunk_create(buf, strlen(buf))); |
| 1408 | if (password.len > 0) |
| 1409 | { /* trim trailing \n */ |
| 1410 | password.len--; |
| 1411 | } |
| 1412 | memwipe(buf, sizeof(buf)); |
| 1413 | } |
| 1414 | } |
| 1415 | |
| 1416 | if (password.len) |
| 1417 | { |
| 1418 | shared_key_t *shared; |
| 1419 | linked_list_t *owners; |
| 1420 | |
| 1421 | shared = shared_key_create(type, password); |
| 1422 | |
| 1423 | owners = linked_list_create(); |
| 1424 | owners->insert_last(owners, id->clone(id)); |
| 1425 | if (gw && gw->get_type(gw) != ID_ANY) |
| 1426 | { |
| 1427 | owners->insert_last(owners, gw->clone(gw)); |
| 1428 | DBG1(DBG_CFG, " added %N secret for %Y %Y", shared_key_type_names, |
| 1429 | type, id, gw); |
| 1430 | } |
| 1431 | else |
| 1432 | { |
| 1433 | DBG1(DBG_CFG, " added %N secret for %Y", shared_key_type_names, |
| 1434 | type, id); |
| 1435 | } |
| 1436 | this->cred->add_shared(this->cred, shared, owners); |
| 1437 | DBG4(DBG_CFG, " secret: %#B", &password); |
| 1438 | } |
| 1439 | else |
| 1440 | { /* in case a user answers the password prompt by just pressing enter */ |
| 1441 | chunk_clear(&password); |
| 1442 | } |
| 1443 | id->destroy(id); |
| 1444 | DESTROY_IF(gw); |
| 1445 | } |
| 1446 | |
| 1447 | METHOD(stroke_config_t, destroy, void, |
| 1448 | private_stroke_config_t *this) |
| 1449 | { |
| 1450 | this->list->destroy_offset(this->list, offsetof(peer_cfg_t, destroy)); |
| 1451 | this->mutex->destroy(this->mutex); |
| 1452 | free(this); |
| 1453 | } |
| 1454 | |
| 1455 | /* |
| 1456 | * see header file |
| 1457 | */ |
| 1458 | stroke_config_t *stroke_config_create(stroke_ca_t *ca, stroke_cred_t *cred, |
| 1459 | stroke_attribute_t *attributes) |
| 1460 | { |
| 1461 | private_stroke_config_t *this; |
| 1462 | |
| 1463 | INIT(this, |
| 1464 | .public = { |
| 1465 | .backend = { |
| 1466 | .create_peer_cfg_enumerator = _create_peer_cfg_enumerator, |
| 1467 | .create_ike_cfg_enumerator = _create_ike_cfg_enumerator, |
| 1468 | .get_peer_cfg_by_name = _get_peer_cfg_by_name, |
| 1469 | }, |
| 1470 | .add = _add, |
| 1471 | .del = _del, |
| 1472 | .set_user_credentials = _set_user_credentials, |
| 1473 | .destroy = _destroy, |
| 1474 | }, |
| 1475 | .list = linked_list_create(), |
| 1476 | .mutex = mutex_create(MUTEX_TYPE_RECURSIVE), |
| 1477 | .ca = ca, |
| 1478 | .cred = cred, |
| 1479 | .attributes = attributes, |
| 1480 | ); |
| 1481 | |
| 1482 | return &this->public; |
| 1483 | } |