diff options
| author | cvs2svn <admin@example.com> | 2025-04-14 17:32:06 +0000 |
|---|---|---|
| committer | cvs2svn <admin@example.com> | 2025-04-14 17:32:06 +0000 |
| commit | b1ddde874c215cc8891531ed92876f091b7eb83e (patch) | |
| tree | edb6da6af7e865d488dc1a29309f1e1ec226e603 /src/lib/libssl/ssl_sess.c | |
| parent | f0a36529837a161734c802ae4c42e84e42347be2 (diff) | |
| download | openbsd-tb_20250414.tar.gz openbsd-tb_20250414.tar.bz2 openbsd-tb_20250414.zip | |
This commit was manufactured by cvs2git to create tag 'tb_20250414'.tb_20250414
Diffstat (limited to '')
| -rw-r--r-- | src/lib/libssl/ssl_sess.c | 1347 |
1 files changed, 0 insertions, 1347 deletions
diff --git a/src/lib/libssl/ssl_sess.c b/src/lib/libssl/ssl_sess.c deleted file mode 100644 index a5cfc33c04..0000000000 --- a/src/lib/libssl/ssl_sess.c +++ /dev/null | |||
| @@ -1,1347 +0,0 @@ | |||
| 1 | /* $OpenBSD: ssl_sess.c,v 1.129 2025/03/09 15:53:36 tb Exp $ */ | ||
| 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) | ||
| 3 | * All rights reserved. | ||
| 4 | * | ||
| 5 | * This package is an SSL implementation written | ||
| 6 | * by Eric Young (eay@cryptsoft.com). | ||
| 7 | * The implementation was written so as to conform with Netscapes SSL. | ||
| 8 | * | ||
| 9 | * This library is free for commercial and non-commercial use as long as | ||
| 10 | * the following conditions are aheared to. The following conditions | ||
| 11 | * apply to all code found in this distribution, be it the RC4, RSA, | ||
| 12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | ||
| 13 | * included with this distribution is covered by the same copyright terms | ||
| 14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | ||
| 15 | * | ||
| 16 | * Copyright remains Eric Young's, and as such any Copyright notices in | ||
| 17 | * the code are not to be removed. | ||
| 18 | * If this package is used in a product, Eric Young should be given attribution | ||
| 19 | * as the author of the parts of the library used. | ||
| 20 | * This can be in the form of a textual message at program startup or | ||
| 21 | * in documentation (online or textual) provided with the package. | ||
| 22 | * | ||
| 23 | * Redistribution and use in source and binary forms, with or without | ||
| 24 | * modification, are permitted provided that the following conditions | ||
| 25 | * are met: | ||
| 26 | * 1. Redistributions of source code must retain the copyright | ||
| 27 | * notice, this list of conditions and the following disclaimer. | ||
| 28 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 29 | * notice, this list of conditions and the following disclaimer in the | ||
| 30 | * documentation and/or other materials provided with the distribution. | ||
| 31 | * 3. All advertising materials mentioning features or use of this software | ||
| 32 | * must display the following acknowledgement: | ||
| 33 | * "This product includes cryptographic software written by | ||
| 34 | * Eric Young (eay@cryptsoft.com)" | ||
| 35 | * The word 'cryptographic' can be left out if the rouines from the library | ||
| 36 | * being used are not cryptographic related :-). | ||
| 37 | * 4. If you include any Windows specific code (or a derivative thereof) from | ||
| 38 | * the apps directory (application code) you must include an acknowledgement: | ||
| 39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | ||
| 40 | * | ||
| 41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | ||
| 42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | ||
| 44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | ||
| 45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | ||
| 46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | ||
| 47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | ||
| 49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | ||
| 50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | ||
| 51 | * SUCH DAMAGE. | ||
| 52 | * | ||
| 53 | * The licence and distribution terms for any publically available version or | ||
| 54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | ||
| 55 | * copied and put under another distribution licence | ||
| 56 | * [including the GNU Public Licence.] | ||
| 57 | */ | ||
| 58 | /* ==================================================================== | ||
| 59 | * Copyright (c) 1998-2006 The OpenSSL Project. All rights reserved. | ||
| 60 | * | ||
| 61 | * Redistribution and use in source and binary forms, with or without | ||
| 62 | * modification, are permitted provided that the following conditions | ||
| 63 | * are met: | ||
| 64 | * | ||
| 65 | * 1. Redistributions of source code must retain the above copyright | ||
| 66 | * notice, this list of conditions and the following disclaimer. | ||
| 67 | * | ||
| 68 | * 2. Redistributions in binary form must reproduce the above copyright | ||
| 69 | * notice, this list of conditions and the following disclaimer in | ||
| 70 | * the documentation and/or other materials provided with the | ||
| 71 | * distribution. | ||
| 72 | * | ||
| 73 | * 3. All advertising materials mentioning features or use of this | ||
| 74 | * software must display the following acknowledgment: | ||
| 75 | * "This product includes software developed by the OpenSSL Project | ||
| 76 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | ||
| 77 | * | ||
| 78 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | ||
| 79 | * endorse or promote products derived from this software without | ||
| 80 | * prior written permission. For written permission, please contact | ||
| 81 | * openssl-core@openssl.org. | ||
| 82 | * | ||
| 83 | * 5. Products derived from this software may not be called "OpenSSL" | ||
| 84 | * nor may "OpenSSL" appear in their names without prior written | ||
| 85 | * permission of the OpenSSL Project. | ||
| 86 | * | ||
| 87 | * 6. Redistributions of any form whatsoever must retain the following | ||
| 88 | * acknowledgment: | ||
| 89 | * "This product includes software developed by the OpenSSL Project | ||
| 90 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | ||
| 91 | * | ||
| 92 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | ||
| 93 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | ||
| 94 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | ||
| 95 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | ||
| 96 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | ||
| 97 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | ||
| 98 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | ||
| 99 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| 100 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | ||
| 101 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | ||
| 102 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | ||
| 103 | * OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| 104 | * ==================================================================== | ||
| 105 | * | ||
| 106 | * This product includes cryptographic software written by Eric Young | ||
| 107 | * (eay@cryptsoft.com). This product includes software written by Tim | ||
| 108 | * Hudson (tjh@cryptsoft.com). | ||
| 109 | * | ||
| 110 | */ | ||
| 111 | /* ==================================================================== | ||
| 112 | * Copyright 2005 Nokia. All rights reserved. | ||
| 113 | * | ||
| 114 | * The portions of the attached software ("Contribution") is developed by | ||
| 115 | * Nokia Corporation and is licensed pursuant to the OpenSSL open source | ||
| 116 | * license. | ||
| 117 | * | ||
| 118 | * The Contribution, originally written by Mika Kousa and Pasi Eronen of | ||
| 119 | * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites | ||
| 120 | * support (see RFC 4279) to OpenSSL. | ||
| 121 | * | ||
| 122 | * No patent licenses or other rights except those expressly stated in | ||
| 123 | * the OpenSSL open source license shall be deemed granted or received | ||
| 124 | * expressly, by implication, estoppel, or otherwise. | ||
| 125 | * | ||
| 126 | * No assurances are provided by Nokia that the Contribution does not | ||
| 127 | * infringe the patent or other intellectual property rights of any third | ||
| 128 | * party or that the license provides you with all the necessary rights | ||
| 129 | * to make use of the Contribution. | ||
| 130 | * | ||
| 131 | * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN | ||
| 132 | * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA | ||
| 133 | * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY | ||
| 134 | * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR | ||
| 135 | * OTHERWISE. | ||
| 136 | */ | ||
| 137 | |||
| 138 | #include <openssl/lhash.h> | ||
| 139 | #include <openssl/opensslconf.h> | ||
| 140 | |||
| 141 | #include "ssl_local.h" | ||
| 142 | |||
| 143 | static void SSL_SESSION_list_remove(SSL_CTX *ctx, SSL_SESSION *s); | ||
| 144 | static void SSL_SESSION_list_add(SSL_CTX *ctx, SSL_SESSION *s); | ||
| 145 | static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck); | ||
| 146 | |||
| 147 | /* aka SSL_get0_session; gets 0 objects, just returns a copy of the pointer */ | ||
| 148 | SSL_SESSION * | ||
| 149 | SSL_get_session(const SSL *ssl) | ||
| 150 | { | ||
| 151 | return (ssl->session); | ||
| 152 | } | ||
| 153 | LSSL_ALIAS(SSL_get_session); | ||
| 154 | |||
| 155 | /* variant of SSL_get_session: caller really gets something */ | ||
| 156 | SSL_SESSION * | ||
| 157 | SSL_get1_session(SSL *ssl) | ||
| 158 | { | ||
| 159 | SSL_SESSION *sess; | ||
| 160 | |||
| 161 | /* | ||
| 162 | * Need to lock this all up rather than just use CRYPTO_add so that | ||
| 163 | * somebody doesn't free ssl->session between when we check it's | ||
| 164 | * non-null and when we up the reference count. | ||
| 165 | */ | ||
| 166 | CRYPTO_w_lock(CRYPTO_LOCK_SSL_SESSION); | ||
| 167 | sess = ssl->session; | ||
| 168 | if (sess) | ||
| 169 | sess->references++; | ||
| 170 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL_SESSION); | ||
| 171 | |||
| 172 | return (sess); | ||
| 173 | } | ||
| 174 | LSSL_ALIAS(SSL_get1_session); | ||
| 175 | |||
| 176 | int | ||
| 177 | SSL_SESSION_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, | ||
| 178 | CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) | ||
| 179 | { | ||
| 180 | return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_SESSION, | ||
| 181 | argl, argp, new_func, dup_func, free_func); | ||
| 182 | } | ||
| 183 | LSSL_ALIAS(SSL_SESSION_get_ex_new_index); | ||
| 184 | |||
| 185 | int | ||
| 186 | SSL_SESSION_set_ex_data(SSL_SESSION *s, int idx, void *arg) | ||
| 187 | { | ||
| 188 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | ||
| 189 | } | ||
| 190 | LSSL_ALIAS(SSL_SESSION_set_ex_data); | ||
| 191 | |||
| 192 | void * | ||
| 193 | SSL_SESSION_get_ex_data(const SSL_SESSION *s, int idx) | ||
| 194 | { | ||
| 195 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | ||
| 196 | } | ||
| 197 | LSSL_ALIAS(SSL_SESSION_get_ex_data); | ||
| 198 | |||
| 199 | uint32_t | ||
| 200 | SSL_SESSION_get_max_early_data(const SSL_SESSION *s) | ||
| 201 | { | ||
| 202 | return 0; | ||
| 203 | } | ||
| 204 | LSSL_ALIAS(SSL_SESSION_get_max_early_data); | ||
| 205 | |||
| 206 | int | ||
| 207 | SSL_SESSION_set_max_early_data(SSL_SESSION *s, uint32_t max_early_data) | ||
| 208 | { | ||
| 209 | return 1; | ||
| 210 | } | ||
| 211 | LSSL_ALIAS(SSL_SESSION_set_max_early_data); | ||
| 212 | |||
| 213 | SSL_SESSION * | ||
| 214 | SSL_SESSION_new(void) | ||
| 215 | { | ||
| 216 | SSL_SESSION *ss; | ||
| 217 | |||
| 218 | if (!OPENSSL_init_ssl(0, NULL)) { | ||
| 219 | SSLerrorx(SSL_R_LIBRARY_BUG); | ||
| 220 | return(NULL); | ||
| 221 | } | ||
| 222 | |||
| 223 | if ((ss = calloc(1, sizeof(*ss))) == NULL) { | ||
| 224 | SSLerrorx(ERR_R_MALLOC_FAILURE); | ||
| 225 | return (NULL); | ||
| 226 | } | ||
| 227 | |||
| 228 | ss->verify_result = 1; /* avoid 0 (= X509_V_OK) just in case */ | ||
| 229 | ss->references = 1; | ||
| 230 | ss->timeout = 60 * 5 + 4; /* 5 minutes 4 seconds timeout by default */ | ||
| 231 | ss->time = time(NULL); | ||
| 232 | ss->prev = NULL; | ||
| 233 | ss->next = NULL; | ||
| 234 | ss->tlsext_hostname = NULL; | ||
| 235 | |||
| 236 | ss->peer_cert_type = -1; | ||
| 237 | |||
| 238 | ss->tlsext_ecpointformatlist_length = 0; | ||
| 239 | ss->tlsext_ecpointformatlist = NULL; | ||
| 240 | ss->tlsext_supportedgroups_length = 0; | ||
| 241 | ss->tlsext_supportedgroups = NULL; | ||
| 242 | |||
| 243 | CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, ss, &ss->ex_data); | ||
| 244 | |||
| 245 | return (ss); | ||
| 246 | } | ||
| 247 | LSSL_ALIAS(SSL_SESSION_new); | ||
| 248 | |||
| 249 | SSL_SESSION * | ||
| 250 | ssl_session_dup(SSL_SESSION *sess, int include_ticket) | ||
| 251 | { | ||
| 252 | SSL_SESSION *copy; | ||
| 253 | CBS cbs; | ||
| 254 | |||
| 255 | if ((copy = calloc(1, sizeof(*copy))) == NULL) { | ||
| 256 | SSLerrorx(ERR_R_MALLOC_FAILURE); | ||
| 257 | goto err; | ||
| 258 | } | ||
| 259 | |||
| 260 | copy->ssl_version = sess->ssl_version; | ||
| 261 | |||
| 262 | CBS_init(&cbs, sess->master_key, sess->master_key_length); | ||
| 263 | if (!CBS_write_bytes(&cbs, copy->master_key, sizeof(copy->master_key), | ||
| 264 | ©->master_key_length)) | ||
| 265 | goto err; | ||
| 266 | |||
| 267 | CBS_init(&cbs, sess->session_id, sess->session_id_length); | ||
| 268 | if (!CBS_write_bytes(&cbs, copy->session_id, sizeof(copy->session_id), | ||
| 269 | ©->session_id_length)) | ||
| 270 | goto err; | ||
| 271 | |||
| 272 | CBS_init(&cbs, sess->sid_ctx, sess->sid_ctx_length); | ||
| 273 | if (!CBS_write_bytes(&cbs, copy->sid_ctx, sizeof(copy->sid_ctx), | ||
| 274 | ©->sid_ctx_length)) | ||
| 275 | goto err; | ||
| 276 | |||
| 277 | if (sess->peer_cert != NULL) { | ||
| 278 | if (!X509_up_ref(sess->peer_cert)) | ||
| 279 | goto err; | ||
| 280 | copy->peer_cert = sess->peer_cert; | ||
| 281 | } | ||
| 282 | copy->peer_cert_type = sess->peer_cert_type; | ||
| 283 | |||
| 284 | copy->verify_result = sess->verify_result; | ||
| 285 | |||
| 286 | copy->timeout = sess->timeout; | ||
| 287 | copy->time = sess->time; | ||
| 288 | copy->references = 1; | ||
| 289 | |||
| 290 | copy->cipher_value = sess->cipher_value; | ||
| 291 | |||
| 292 | if (sess->tlsext_hostname != NULL) { | ||
| 293 | copy->tlsext_hostname = strdup(sess->tlsext_hostname); | ||
| 294 | if (copy->tlsext_hostname == NULL) | ||
| 295 | goto err; | ||
| 296 | } | ||
| 297 | |||
| 298 | if (include_ticket) { | ||
| 299 | CBS_init(&cbs, sess->tlsext_tick, sess->tlsext_ticklen); | ||
| 300 | if (!CBS_stow(&cbs, ©->tlsext_tick, ©->tlsext_ticklen)) | ||
| 301 | goto err; | ||
| 302 | copy->tlsext_tick_lifetime_hint = | ||
| 303 | sess->tlsext_tick_lifetime_hint; | ||
| 304 | |||
| 305 | /* | ||
| 306 | * XXX - copy sess->resumption_master_secret and all other | ||
| 307 | * TLSv1.3 info here. | ||
| 308 | */ | ||
| 309 | } | ||
| 310 | |||
| 311 | if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, copy, | ||
| 312 | ©->ex_data)) | ||
| 313 | goto err; | ||
| 314 | |||
| 315 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, ©->ex_data, | ||
| 316 | &sess->ex_data)) | ||
| 317 | goto err; | ||
| 318 | |||
| 319 | /* Omit prev/next: the new session gets its own slot in the cache. */ | ||
| 320 | |||
| 321 | copy->not_resumable = sess->not_resumable; | ||
| 322 | |||
| 323 | CBS_init(&cbs, sess->tlsext_ecpointformatlist, | ||
| 324 | sess->tlsext_ecpointformatlist_length); | ||
| 325 | if (!CBS_stow(&cbs, ©->tlsext_ecpointformatlist, | ||
| 326 | ©->tlsext_ecpointformatlist_length)) | ||
| 327 | goto err; | ||
| 328 | |||
| 329 | if (sess->tlsext_supportedgroups != NULL) { | ||
| 330 | if ((copy->tlsext_supportedgroups = calloc(sizeof(uint16_t), | ||
| 331 | sess->tlsext_supportedgroups_length)) == NULL) | ||
| 332 | goto err; | ||
| 333 | memcpy(copy->tlsext_supportedgroups, | ||
| 334 | sess->tlsext_supportedgroups, | ||
| 335 | sizeof(uint16_t) * sess->tlsext_supportedgroups_length); | ||
| 336 | copy->tlsext_supportedgroups_length = | ||
| 337 | sess->tlsext_supportedgroups_length; | ||
| 338 | } | ||
| 339 | |||
| 340 | return copy; | ||
| 341 | |||
| 342 | err: | ||
| 343 | SSL_SESSION_free(copy); | ||
| 344 | |||
| 345 | return NULL; | ||
| 346 | } | ||
| 347 | |||
| 348 | const unsigned char * | ||
| 349 | SSL_SESSION_get_id(const SSL_SESSION *ss, unsigned int *len) | ||
| 350 | { | ||
| 351 | if (len != NULL) | ||
| 352 | *len = (unsigned int)ss->session_id_length; | ||
| 353 | return ss->session_id; | ||
| 354 | } | ||
| 355 | LSSL_ALIAS(SSL_SESSION_get_id); | ||
| 356 | |||
| 357 | const unsigned char * | ||
| 358 | SSL_SESSION_get0_id_context(const SSL_SESSION *ss, unsigned int *len) | ||
| 359 | { | ||
| 360 | if (len != NULL) | ||
| 361 | *len = (unsigned int)ss->sid_ctx_length; | ||
| 362 | return ss->sid_ctx; | ||
| 363 | } | ||
| 364 | LSSL_ALIAS(SSL_SESSION_get0_id_context); | ||
| 365 | |||
| 366 | unsigned int | ||
| 367 | SSL_SESSION_get_compress_id(const SSL_SESSION *ss) | ||
| 368 | { | ||
| 369 | return 0; | ||
| 370 | } | ||
| 371 | LSSL_ALIAS(SSL_SESSION_get_compress_id); | ||
| 372 | |||
| 373 | unsigned long | ||
| 374 | SSL_SESSION_get_ticket_lifetime_hint(const SSL_SESSION *s) | ||
| 375 | { | ||
| 376 | return s->tlsext_tick_lifetime_hint; | ||
| 377 | } | ||
| 378 | LSSL_ALIAS(SSL_SESSION_get_ticket_lifetime_hint); | ||
| 379 | |||
| 380 | int | ||
| 381 | SSL_SESSION_has_ticket(const SSL_SESSION *s) | ||
| 382 | { | ||
| 383 | return (s->tlsext_ticklen > 0) ? 1 : 0; | ||
| 384 | } | ||
| 385 | LSSL_ALIAS(SSL_SESSION_has_ticket); | ||
| 386 | |||
| 387 | /* | ||
| 388 | * SSLv3/TLSv1 has 32 bytes (256 bits) of session ID space. As such, filling | ||
| 389 | * the ID with random gunk repeatedly until we have no conflict is going to | ||
| 390 | * complete in one iteration pretty much "most" of the time (btw: | ||
| 391 | * understatement). So, if it takes us 10 iterations and we still can't avoid | ||
| 392 | * a conflict - well that's a reasonable point to call it quits. Either the | ||
| 393 | * arc4random code is broken or someone is trying to open roughly very close to | ||
| 394 | * 2^128 (or 2^256) SSL sessions to our server. How you might store that many | ||
| 395 | * sessions is perhaps a more interesting question... | ||
| 396 | */ | ||
| 397 | |||
| 398 | #define MAX_SESS_ID_ATTEMPTS 10 | ||
| 399 | |||
| 400 | static int | ||
| 401 | def_generate_session_id(const SSL *ssl, unsigned char *id, unsigned int *id_len) | ||
| 402 | { | ||
| 403 | unsigned int retry = 0; | ||
| 404 | |||
| 405 | do { | ||
| 406 | arc4random_buf(id, *id_len); | ||
| 407 | } while (SSL_has_matching_session_id(ssl, id, *id_len) && | ||
| 408 | (++retry < MAX_SESS_ID_ATTEMPTS)); | ||
| 409 | |||
| 410 | if (retry < MAX_SESS_ID_ATTEMPTS) | ||
| 411 | return 1; | ||
| 412 | |||
| 413 | /* else - woops a session_id match */ | ||
| 414 | /* XXX We should also check the external cache -- | ||
| 415 | * but the probability of a collision is negligible, and | ||
| 416 | * we could not prevent the concurrent creation of sessions | ||
| 417 | * with identical IDs since we currently don't have means | ||
| 418 | * to atomically check whether a session ID already exists | ||
| 419 | * and make a reservation for it if it does not | ||
| 420 | * (this problem applies to the internal cache as well). | ||
| 421 | */ | ||
| 422 | return 0; | ||
| 423 | } | ||
| 424 | |||
| 425 | int | ||
| 426 | ssl_get_new_session(SSL *s, int session) | ||
| 427 | { | ||
| 428 | unsigned int tmp; | ||
| 429 | SSL_SESSION *ss = NULL; | ||
| 430 | GEN_SESSION_CB cb = def_generate_session_id; | ||
| 431 | |||
| 432 | /* This gets used by clients and servers. */ | ||
| 433 | |||
| 434 | if ((ss = SSL_SESSION_new()) == NULL) | ||
| 435 | return (0); | ||
| 436 | |||
| 437 | /* If the context has a default timeout, use it */ | ||
| 438 | if (s->session_ctx->session_timeout == 0) | ||
| 439 | ss->timeout = SSL_get_default_timeout(s); | ||
| 440 | else | ||
| 441 | ss->timeout = s->session_ctx->session_timeout; | ||
| 442 | |||
| 443 | if (s->session != NULL) { | ||
| 444 | SSL_SESSION_free(s->session); | ||
| 445 | s->session = NULL; | ||
| 446 | } | ||
| 447 | |||
| 448 | if (session) { | ||
| 449 | switch (s->version) { | ||
| 450 | case TLS1_VERSION: | ||
| 451 | case TLS1_1_VERSION: | ||
| 452 | case TLS1_2_VERSION: | ||
| 453 | case DTLS1_VERSION: | ||
| 454 | case DTLS1_2_VERSION: | ||
| 455 | ss->ssl_version = s->version; | ||
| 456 | ss->session_id_length = SSL3_SSL_SESSION_ID_LENGTH; | ||
| 457 | break; | ||
| 458 | default: | ||
| 459 | SSLerror(s, SSL_R_UNSUPPORTED_SSL_VERSION); | ||
| 460 | SSL_SESSION_free(ss); | ||
| 461 | return (0); | ||
| 462 | } | ||
| 463 | |||
| 464 | /* If RFC4507 ticket use empty session ID. */ | ||
| 465 | if (s->tlsext_ticket_expected) { | ||
| 466 | ss->session_id_length = 0; | ||
| 467 | goto sess_id_done; | ||
| 468 | } | ||
| 469 | |||
| 470 | /* Choose which callback will set the session ID. */ | ||
| 471 | CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); | ||
| 472 | if (s->generate_session_id) | ||
| 473 | cb = s->generate_session_id; | ||
| 474 | else if (s->session_ctx->generate_session_id) | ||
| 475 | cb = s->session_ctx->generate_session_id; | ||
| 476 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); | ||
| 477 | |||
| 478 | /* Choose a session ID. */ | ||
| 479 | tmp = ss->session_id_length; | ||
| 480 | if (!cb(s, ss->session_id, &tmp)) { | ||
| 481 | /* The callback failed */ | ||
| 482 | SSLerror(s, SSL_R_SSL_SESSION_ID_CALLBACK_FAILED); | ||
| 483 | SSL_SESSION_free(ss); | ||
| 484 | return (0); | ||
| 485 | } | ||
| 486 | |||
| 487 | /* | ||
| 488 | * Don't allow the callback to set the session length to zero. | ||
| 489 | * nor set it higher than it was. | ||
| 490 | */ | ||
| 491 | if (tmp == 0 || tmp > ss->session_id_length) { | ||
| 492 | /* The callback set an illegal length */ | ||
| 493 | SSLerror(s, SSL_R_SSL_SESSION_ID_HAS_BAD_LENGTH); | ||
| 494 | SSL_SESSION_free(ss); | ||
| 495 | return (0); | ||
| 496 | } | ||
| 497 | ss->session_id_length = tmp; | ||
| 498 | |||
| 499 | /* Finally, check for a conflict. */ | ||
| 500 | if (SSL_has_matching_session_id(s, ss->session_id, | ||
| 501 | ss->session_id_length)) { | ||
| 502 | SSLerror(s, SSL_R_SSL_SESSION_ID_CONFLICT); | ||
| 503 | SSL_SESSION_free(ss); | ||
| 504 | return (0); | ||
| 505 | } | ||
| 506 | |||
| 507 | sess_id_done: | ||
| 508 | if (s->tlsext_hostname) { | ||
| 509 | ss->tlsext_hostname = strdup(s->tlsext_hostname); | ||
| 510 | if (ss->tlsext_hostname == NULL) { | ||
| 511 | SSLerror(s, ERR_R_INTERNAL_ERROR); | ||
| 512 | SSL_SESSION_free(ss); | ||
| 513 | return 0; | ||
| 514 | } | ||
| 515 | } | ||
| 516 | } else { | ||
| 517 | ss->session_id_length = 0; | ||
| 518 | } | ||
| 519 | |||
| 520 | if (s->sid_ctx_length > sizeof ss->sid_ctx) { | ||
| 521 | SSLerror(s, ERR_R_INTERNAL_ERROR); | ||
| 522 | SSL_SESSION_free(ss); | ||
| 523 | return 0; | ||
| 524 | } | ||
| 525 | |||
| 526 | memcpy(ss->sid_ctx, s->sid_ctx, s->sid_ctx_length); | ||
| 527 | ss->sid_ctx_length = s->sid_ctx_length; | ||
| 528 | s->session = ss; | ||
| 529 | ss->ssl_version = s->version; | ||
| 530 | ss->verify_result = X509_V_OK; | ||
| 531 | |||
| 532 | return (1); | ||
| 533 | } | ||
| 534 | |||
| 535 | static SSL_SESSION * | ||
| 536 | ssl_session_from_cache(SSL *s, CBS *session_id) | ||
| 537 | { | ||
| 538 | SSL_SESSION *sess; | ||
| 539 | SSL_SESSION data; | ||
| 540 | |||
| 541 | if ((s->session_ctx->session_cache_mode & | ||
| 542 | SSL_SESS_CACHE_NO_INTERNAL_LOOKUP)) | ||
| 543 | return NULL; | ||
| 544 | |||
| 545 | memset(&data, 0, sizeof(data)); | ||
| 546 | |||
| 547 | data.ssl_version = s->version; | ||
| 548 | |||
| 549 | if (!CBS_write_bytes(session_id, data.session_id, | ||
| 550 | sizeof(data.session_id), &data.session_id_length)) | ||
| 551 | return NULL; | ||
| 552 | |||
| 553 | CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); | ||
| 554 | sess = lh_SSL_SESSION_retrieve(s->session_ctx->sessions, &data); | ||
| 555 | if (sess != NULL) | ||
| 556 | CRYPTO_add(&sess->references, 1, CRYPTO_LOCK_SSL_SESSION); | ||
| 557 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); | ||
| 558 | |||
| 559 | if (sess == NULL) | ||
| 560 | s->session_ctx->stats.sess_miss++; | ||
| 561 | |||
| 562 | return sess; | ||
| 563 | } | ||
| 564 | |||
| 565 | static SSL_SESSION * | ||
| 566 | ssl_session_from_callback(SSL *s, CBS *session_id) | ||
| 567 | { | ||
| 568 | SSL_SESSION *sess; | ||
| 569 | int copy; | ||
| 570 | |||
| 571 | if (s->session_ctx->get_session_cb == NULL) | ||
| 572 | return NULL; | ||
| 573 | |||
| 574 | copy = 1; | ||
| 575 | if ((sess = s->session_ctx->get_session_cb(s, | ||
| 576 | CBS_data(session_id), CBS_len(session_id), ©)) == NULL) | ||
| 577 | return NULL; | ||
| 578 | /* | ||
| 579 | * The copy handler may have set copy == 0 to indicate that the session | ||
| 580 | * structures are shared between threads and that it handles the | ||
| 581 | * reference count itself. If it didn't set copy to zero, we must | ||
| 582 | * increment the reference count. | ||
| 583 | */ | ||
| 584 | if (copy) | ||
| 585 | CRYPTO_add(&sess->references, 1, CRYPTO_LOCK_SSL_SESSION); | ||
| 586 | |||
| 587 | s->session_ctx->stats.sess_cb_hit++; | ||
| 588 | |||
| 589 | /* Add the externally cached session to the internal cache as well. */ | ||
| 590 | if (!(s->session_ctx->session_cache_mode & | ||
| 591 | SSL_SESS_CACHE_NO_INTERNAL_STORE)) { | ||
| 592 | /* | ||
| 593 | * The following should not return 1, | ||
| 594 | * otherwise, things are very strange. | ||
| 595 | */ | ||
| 596 | SSL_CTX_add_session(s->session_ctx, sess); | ||
| 597 | } | ||
| 598 | |||
| 599 | return sess; | ||
| 600 | } | ||
| 601 | |||
| 602 | static SSL_SESSION * | ||
| 603 | ssl_session_by_id(SSL *s, CBS *session_id) | ||
| 604 | { | ||
| 605 | SSL_SESSION *sess; | ||
| 606 | |||
| 607 | if (CBS_len(session_id) == 0) | ||
| 608 | return NULL; | ||
| 609 | |||
| 610 | if ((sess = ssl_session_from_cache(s, session_id)) == NULL) | ||
| 611 | sess = ssl_session_from_callback(s, session_id); | ||
| 612 | |||
| 613 | return sess; | ||
| 614 | } | ||
| 615 | |||
| 616 | /* | ||
| 617 | * ssl_get_prev_session attempts to find an SSL_SESSION to be used to resume | ||
| 618 | * this connection. It is only called by servers. | ||
| 619 | * | ||
| 620 | * session_id: points at the session ID in the ClientHello. This code will | ||
| 621 | * read past the end of this in order to parse out the session ticket | ||
| 622 | * extension, if any. | ||
| 623 | * ext_block: a CBS for the ClientHello extensions block. | ||
| 624 | * alert: alert that the caller should send in case of failure. | ||
| 625 | * | ||
| 626 | * Returns: | ||
| 627 | * -1: error | ||
| 628 | * 0: a session may have been found. | ||
| 629 | * | ||
| 630 | * Side effects: | ||
| 631 | * - If a session is found then s->session is pointed at it (after freeing | ||
| 632 | * an existing session if need be) and s->verify_result is set from the | ||
| 633 | * session. | ||
| 634 | * - For both new and resumed sessions, s->tlsext_ticket_expected | ||
| 635 | * indicates whether the server should issue a new session ticket or not. | ||
| 636 | */ | ||
| 637 | int | ||
| 638 | ssl_get_prev_session(SSL *s, CBS *session_id, CBS *ext_block, int *alert) | ||
| 639 | { | ||
| 640 | SSL_SESSION *sess = NULL; | ||
| 641 | int alert_desc = SSL_AD_INTERNAL_ERROR, fatal = 0; | ||
| 642 | int ticket_decrypted = 0; | ||
| 643 | |||
| 644 | /* This is used only by servers. */ | ||
| 645 | |||
| 646 | if (CBS_len(session_id) > SSL_MAX_SSL_SESSION_ID_LENGTH) | ||
| 647 | goto err; | ||
| 648 | |||
| 649 | /* Sets s->tlsext_ticket_expected. */ | ||
| 650 | switch (tls1_process_ticket(s, ext_block, &alert_desc, &sess)) { | ||
| 651 | case TLS1_TICKET_FATAL_ERROR: | ||
| 652 | fatal = 1; | ||
| 653 | goto err; | ||
| 654 | case TLS1_TICKET_NONE: | ||
| 655 | case TLS1_TICKET_EMPTY: | ||
| 656 | if ((sess = ssl_session_by_id(s, session_id)) == NULL) | ||
| 657 | goto err; | ||
| 658 | break; | ||
| 659 | case TLS1_TICKET_NOT_DECRYPTED: | ||
| 660 | goto err; | ||
| 661 | case TLS1_TICKET_DECRYPTED: | ||
| 662 | ticket_decrypted = 1; | ||
| 663 | |||
| 664 | /* | ||
| 665 | * The session ID is used by some clients to detect that the | ||
| 666 | * ticket has been accepted so we copy it into sess. | ||
| 667 | */ | ||
| 668 | if (!CBS_write_bytes(session_id, sess->session_id, | ||
| 669 | sizeof(sess->session_id), &sess->session_id_length)) { | ||
| 670 | fatal = 1; | ||
| 671 | goto err; | ||
| 672 | } | ||
| 673 | break; | ||
| 674 | default: | ||
| 675 | SSLerror(s, ERR_R_INTERNAL_ERROR); | ||
| 676 | fatal = 1; | ||
| 677 | goto err; | ||
| 678 | } | ||
| 679 | |||
| 680 | /* Now sess is non-NULL and we own one of its reference counts. */ | ||
| 681 | |||
| 682 | if (sess->sid_ctx_length != s->sid_ctx_length || | ||
| 683 | timingsafe_memcmp(sess->sid_ctx, s->sid_ctx, | ||
| 684 | sess->sid_ctx_length) != 0) { | ||
| 685 | /* | ||
| 686 | * We have the session requested by the client, but we don't | ||
| 687 | * want to use it in this context. Treat it like a cache miss. | ||
| 688 | */ | ||
| 689 | goto err; | ||
| 690 | } | ||
| 691 | |||
| 692 | if ((s->verify_mode & SSL_VERIFY_PEER) && s->sid_ctx_length == 0) { | ||
| 693 | /* | ||
| 694 | * We can't be sure if this session is being used out of | ||
| 695 | * context, which is especially important for SSL_VERIFY_PEER. | ||
| 696 | * The application should have used | ||
| 697 | * SSL[_CTX]_set_session_id_context. | ||
| 698 | * | ||
| 699 | * For this error case, we generate an error instead of treating | ||
| 700 | * the event like a cache miss (otherwise it would be easy for | ||
| 701 | * applications to effectively disable the session cache by | ||
| 702 | * accident without anyone noticing). | ||
| 703 | */ | ||
| 704 | SSLerror(s, SSL_R_SESSION_ID_CONTEXT_UNINITIALIZED); | ||
| 705 | fatal = 1; | ||
| 706 | goto err; | ||
| 707 | } | ||
| 708 | |||
| 709 | if (sess->timeout < (time(NULL) - sess->time)) { | ||
| 710 | s->session_ctx->stats.sess_timeout++; | ||
| 711 | if (!ticket_decrypted) { | ||
| 712 | /* The session was from the cache, so remove it. */ | ||
| 713 | SSL_CTX_remove_session(s->session_ctx, sess); | ||
| 714 | } | ||
| 715 | goto err; | ||
| 716 | } | ||
| 717 | |||
| 718 | s->session_ctx->stats.sess_hit++; | ||
| 719 | |||
| 720 | SSL_SESSION_free(s->session); | ||
| 721 | s->session = sess; | ||
| 722 | s->verify_result = s->session->verify_result; | ||
| 723 | |||
| 724 | return 1; | ||
| 725 | |||
| 726 | err: | ||
| 727 | SSL_SESSION_free(sess); | ||
| 728 | if (ticket_decrypted) { | ||
| 729 | /* | ||
| 730 | * The session was from a ticket. Issue a ticket for the new | ||
| 731 | * session. | ||
| 732 | */ | ||
| 733 | s->tlsext_ticket_expected = 1; | ||
| 734 | } | ||
| 735 | if (fatal) { | ||
| 736 | *alert = alert_desc; | ||
| 737 | return -1; | ||
| 738 | } | ||
| 739 | return 0; | ||
| 740 | } | ||
| 741 | |||
| 742 | int | ||
| 743 | SSL_CTX_add_session(SSL_CTX *ctx, SSL_SESSION *c) | ||
| 744 | { | ||
| 745 | int ret = 0; | ||
| 746 | SSL_SESSION *s; | ||
| 747 | |||
| 748 | /* | ||
| 749 | * Add just 1 reference count for the SSL_CTX's session cache | ||
| 750 | * even though it has two ways of access: each session is in a | ||
| 751 | * doubly linked list and an lhash. | ||
| 752 | */ | ||
| 753 | CRYPTO_add(&c->references, 1, CRYPTO_LOCK_SSL_SESSION); | ||
| 754 | |||
| 755 | /* | ||
| 756 | * If session c is in already in cache, we take back the increment | ||
| 757 | * later. | ||
| 758 | */ | ||
| 759 | CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); | ||
| 760 | s = lh_SSL_SESSION_insert(ctx->sessions, c); | ||
| 761 | |||
| 762 | /* | ||
| 763 | * s != NULL iff we already had a session with the given PID. | ||
| 764 | * In this case, s == c should hold (then we did not really modify | ||
| 765 | * ctx->sessions), or we're in trouble. | ||
| 766 | */ | ||
| 767 | if (s != NULL && s != c) { | ||
| 768 | /* We *are* in trouble ... */ | ||
| 769 | SSL_SESSION_list_remove(ctx, s); | ||
| 770 | SSL_SESSION_free(s); | ||
| 771 | /* | ||
| 772 | * ... so pretend the other session did not exist in cache | ||
| 773 | * (we cannot handle two SSL_SESSION structures with identical | ||
| 774 | * session ID in the same cache, which could happen e.g. when | ||
| 775 | * two threads concurrently obtain the same session from an | ||
| 776 | * external cache). | ||
| 777 | */ | ||
| 778 | s = NULL; | ||
| 779 | } | ||
| 780 | |||
| 781 | /* Put at the head of the queue unless it is already in the cache */ | ||
| 782 | if (s == NULL) | ||
| 783 | SSL_SESSION_list_add(ctx, c); | ||
| 784 | |||
| 785 | if (s != NULL) { | ||
| 786 | /* | ||
| 787 | * existing cache entry -- decrement previously incremented | ||
| 788 | * reference count because it already takes into account the | ||
| 789 | * cache. | ||
| 790 | */ | ||
| 791 | SSL_SESSION_free(s); /* s == c */ | ||
| 792 | ret = 0; | ||
| 793 | } else { | ||
| 794 | /* | ||
| 795 | * New cache entry -- remove old ones if cache has become | ||
| 796 | * too large. | ||
| 797 | */ | ||
| 798 | |||
| 799 | ret = 1; | ||
| 800 | |||
| 801 | if (SSL_CTX_sess_get_cache_size(ctx) > 0) { | ||
| 802 | while (SSL_CTX_sess_number(ctx) > | ||
| 803 | SSL_CTX_sess_get_cache_size(ctx)) { | ||
| 804 | if (!remove_session_lock(ctx, | ||
| 805 | ctx->session_cache_tail, 0)) | ||
| 806 | break; | ||
| 807 | else | ||
| 808 | ctx->stats.sess_cache_full++; | ||
| 809 | } | ||
| 810 | } | ||
| 811 | } | ||
| 812 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); | ||
| 813 | return (ret); | ||
| 814 | } | ||
| 815 | LSSL_ALIAS(SSL_CTX_add_session); | ||
| 816 | |||
| 817 | int | ||
| 818 | SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c) | ||
| 819 | { | ||
| 820 | return remove_session_lock(ctx, c, 1); | ||
| 821 | } | ||
| 822 | LSSL_ALIAS(SSL_CTX_remove_session); | ||
| 823 | |||
| 824 | static int | ||
| 825 | remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck) | ||
| 826 | { | ||
| 827 | SSL_SESSION *r; | ||
| 828 | int ret = 0; | ||
| 829 | |||
| 830 | if (c == NULL || c->session_id_length == 0) | ||
| 831 | return 0; | ||
| 832 | |||
| 833 | if (lck) | ||
| 834 | CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); | ||
| 835 | if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) { | ||
| 836 | ret = 1; | ||
| 837 | r = lh_SSL_SESSION_delete(ctx->sessions, c); | ||
| 838 | SSL_SESSION_list_remove(ctx, c); | ||
| 839 | } | ||
| 840 | if (lck) | ||
| 841 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); | ||
| 842 | |||
| 843 | if (ret) { | ||
| 844 | r->not_resumable = 1; | ||
| 845 | if (ctx->remove_session_cb != NULL) | ||
| 846 | ctx->remove_session_cb(ctx, r); | ||
| 847 | SSL_SESSION_free(r); | ||
| 848 | } | ||
| 849 | |||
| 850 | return ret; | ||
| 851 | } | ||
| 852 | |||
| 853 | void | ||
| 854 | SSL_SESSION_free(SSL_SESSION *ss) | ||
| 855 | { | ||
| 856 | int i; | ||
| 857 | |||
| 858 | if (ss == NULL) | ||
| 859 | return; | ||
| 860 | |||
| 861 | i = CRYPTO_add(&ss->references, -1, CRYPTO_LOCK_SSL_SESSION); | ||
| 862 | if (i > 0) | ||
| 863 | return; | ||
| 864 | |||
| 865 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, ss, &ss->ex_data); | ||
| 866 | |||
| 867 | explicit_bzero(ss->master_key, sizeof ss->master_key); | ||
| 868 | explicit_bzero(ss->session_id, sizeof ss->session_id); | ||
| 869 | |||
| 870 | X509_free(ss->peer_cert); | ||
| 871 | |||
| 872 | free(ss->tlsext_hostname); | ||
| 873 | free(ss->tlsext_tick); | ||
| 874 | free(ss->tlsext_ecpointformatlist); | ||
| 875 | free(ss->tlsext_supportedgroups); | ||
| 876 | |||
| 877 | tls13_secret_cleanup(&ss->resumption_master_secret); | ||
| 878 | |||
| 879 | freezero(ss, sizeof(*ss)); | ||
| 880 | } | ||
| 881 | LSSL_ALIAS(SSL_SESSION_free); | ||
| 882 | |||
| 883 | int | ||
| 884 | SSL_SESSION_up_ref(SSL_SESSION *ss) | ||
| 885 | { | ||
| 886 | return CRYPTO_add(&ss->references, 1, CRYPTO_LOCK_SSL_SESSION) > 1; | ||
| 887 | } | ||
| 888 | LSSL_ALIAS(SSL_SESSION_up_ref); | ||
| 889 | |||
| 890 | int | ||
| 891 | SSL_set_session(SSL *s, SSL_SESSION *session) | ||
| 892 | { | ||
| 893 | const SSL_METHOD *method; | ||
| 894 | |||
| 895 | if (session == NULL) { | ||
| 896 | SSL_SESSION_free(s->session); | ||
| 897 | s->session = NULL; | ||
| 898 | |||
| 899 | return SSL_set_ssl_method(s, s->ctx->method); | ||
| 900 | } | ||
| 901 | |||
| 902 | if ((method = ssl_get_method(session->ssl_version)) == NULL) { | ||
| 903 | SSLerror(s, SSL_R_UNABLE_TO_FIND_SSL_METHOD); | ||
| 904 | return (0); | ||
| 905 | } | ||
| 906 | |||
| 907 | if (!SSL_set_ssl_method(s, method)) | ||
| 908 | return (0); | ||
| 909 | |||
| 910 | CRYPTO_add(&session->references, 1, CRYPTO_LOCK_SSL_SESSION); | ||
| 911 | SSL_SESSION_free(s->session); | ||
| 912 | s->session = session; | ||
| 913 | s->verify_result = s->session->verify_result; | ||
| 914 | |||
| 915 | return (1); | ||
| 916 | } | ||
| 917 | LSSL_ALIAS(SSL_set_session); | ||
| 918 | |||
| 919 | size_t | ||
| 920 | SSL_SESSION_get_master_key(const SSL_SESSION *ss, unsigned char *out, | ||
| 921 | size_t max_out) | ||
| 922 | { | ||
| 923 | size_t len = ss->master_key_length; | ||
| 924 | |||
| 925 | if (out == NULL) | ||
| 926 | return len; | ||
| 927 | |||
| 928 | if (len > max_out) | ||
| 929 | len = max_out; | ||
| 930 | |||
| 931 | memcpy(out, ss->master_key, len); | ||
| 932 | |||
| 933 | return len; | ||
| 934 | } | ||
| 935 | LSSL_ALIAS(SSL_SESSION_get_master_key); | ||
| 936 | |||
| 937 | long | ||
| 938 | SSL_SESSION_set_timeout(SSL_SESSION *s, long t) | ||
| 939 | { | ||
| 940 | if (s == NULL) | ||
| 941 | return (0); | ||
| 942 | s->timeout = t; | ||
| 943 | return (1); | ||
| 944 | } | ||
| 945 | LSSL_ALIAS(SSL_SESSION_set_timeout); | ||
| 946 | |||
| 947 | long | ||
| 948 | SSL_SESSION_get_timeout(const SSL_SESSION *s) | ||
| 949 | { | ||
| 950 | if (s == NULL) | ||
| 951 | return (0); | ||
| 952 | return (s->timeout); | ||
| 953 | } | ||
| 954 | LSSL_ALIAS(SSL_SESSION_get_timeout); | ||
| 955 | |||
| 956 | /* XXX 2038 */ | ||
| 957 | long | ||
| 958 | SSL_SESSION_get_time(const SSL_SESSION *s) | ||
| 959 | { | ||
| 960 | if (s == NULL) | ||
| 961 | return (0); | ||
| 962 | return (s->time); | ||
| 963 | } | ||
| 964 | LSSL_ALIAS(SSL_SESSION_get_time); | ||
| 965 | |||
| 966 | /* XXX 2038 */ | ||
| 967 | long | ||
| 968 | SSL_SESSION_set_time(SSL_SESSION *s, long t) | ||
| 969 | { | ||
| 970 | if (s == NULL) | ||
| 971 | return (0); | ||
| 972 | s->time = t; | ||
| 973 | return (t); | ||
| 974 | } | ||
| 975 | LSSL_ALIAS(SSL_SESSION_set_time); | ||
| 976 | |||
| 977 | int | ||
| 978 | SSL_SESSION_get_protocol_version(const SSL_SESSION *s) | ||
| 979 | { | ||
| 980 | return s->ssl_version; | ||
| 981 | } | ||
| 982 | LSSL_ALIAS(SSL_SESSION_get_protocol_version); | ||
| 983 | |||
| 984 | const SSL_CIPHER * | ||
| 985 | SSL_SESSION_get0_cipher(const SSL_SESSION *s) | ||
| 986 | { | ||
| 987 | return ssl3_get_cipher_by_value(s->cipher_value); | ||
| 988 | } | ||
| 989 | LSSL_ALIAS(SSL_SESSION_get0_cipher); | ||
| 990 | |||
| 991 | X509 * | ||
| 992 | SSL_SESSION_get0_peer(SSL_SESSION *s) | ||
| 993 | { | ||
| 994 | return s->peer_cert; | ||
| 995 | } | ||
| 996 | LSSL_ALIAS(SSL_SESSION_get0_peer); | ||
| 997 | |||
| 998 | int | ||
| 999 | SSL_SESSION_set1_id(SSL_SESSION *s, const unsigned char *sid, | ||
| 1000 | unsigned int sid_len) | ||
| 1001 | { | ||
| 1002 | if (sid_len > SSL_MAX_SSL_SESSION_ID_LENGTH) { | ||
| 1003 | SSLerrorx(SSL_R_SSL_SESSION_ID_TOO_LONG); | ||
| 1004 | return 0; | ||
| 1005 | } | ||
| 1006 | s->session_id_length = sid_len; | ||
| 1007 | memmove(s->session_id, sid, sid_len); | ||
| 1008 | return 1; | ||
| 1009 | } | ||
| 1010 | LSSL_ALIAS(SSL_SESSION_set1_id); | ||
| 1011 | |||
| 1012 | int | ||
| 1013 | SSL_SESSION_set1_id_context(SSL_SESSION *s, const unsigned char *sid_ctx, | ||
| 1014 | unsigned int sid_ctx_len) | ||
| 1015 | { | ||
| 1016 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | ||
| 1017 | SSLerrorx(SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | ||
| 1018 | return 0; | ||
| 1019 | } | ||
| 1020 | s->sid_ctx_length = sid_ctx_len; | ||
| 1021 | memcpy(s->sid_ctx, sid_ctx, sid_ctx_len); | ||
| 1022 | |||
| 1023 | return 1; | ||
| 1024 | } | ||
| 1025 | LSSL_ALIAS(SSL_SESSION_set1_id_context); | ||
| 1026 | |||
| 1027 | int | ||
| 1028 | SSL_SESSION_is_resumable(const SSL_SESSION *s) | ||
| 1029 | { | ||
| 1030 | return 0; | ||
| 1031 | } | ||
| 1032 | LSSL_ALIAS(SSL_SESSION_is_resumable); | ||
| 1033 | |||
| 1034 | long | ||
| 1035 | SSL_CTX_set_timeout(SSL_CTX *s, long t) | ||
| 1036 | { | ||
| 1037 | long l; | ||
| 1038 | |||
| 1039 | if (s == NULL) | ||
| 1040 | return (0); | ||
| 1041 | l = s->session_timeout; | ||
| 1042 | s->session_timeout = t; | ||
| 1043 | |||
| 1044 | return (l); | ||
| 1045 | } | ||
| 1046 | LSSL_ALIAS(SSL_CTX_set_timeout); | ||
| 1047 | |||
| 1048 | long | ||
| 1049 | SSL_CTX_get_timeout(const SSL_CTX *s) | ||
| 1050 | { | ||
| 1051 | if (s == NULL) | ||
| 1052 | return (0); | ||
| 1053 | return (s->session_timeout); | ||
| 1054 | } | ||
| 1055 | LSSL_ALIAS(SSL_CTX_get_timeout); | ||
| 1056 | |||
| 1057 | int | ||
| 1058 | SSL_set_session_secret_cb(SSL *s, int (*tls_session_secret_cb)(SSL *s, | ||
| 1059 | void *secret, int *secret_len, STACK_OF(SSL_CIPHER) *peer_ciphers, | ||
| 1060 | const SSL_CIPHER **cipher, void *arg), void *arg) | ||
| 1061 | { | ||
| 1062 | if (s == NULL) | ||
| 1063 | return (0); | ||
| 1064 | s->tls_session_secret_cb = tls_session_secret_cb; | ||
| 1065 | s->tls_session_secret_cb_arg = arg; | ||
| 1066 | return (1); | ||
| 1067 | } | ||
| 1068 | LSSL_ALIAS(SSL_set_session_secret_cb); | ||
| 1069 | |||
| 1070 | int | ||
| 1071 | SSL_set_session_ticket_ext_cb(SSL *s, tls_session_ticket_ext_cb_fn cb, | ||
| 1072 | void *arg) | ||
| 1073 | { | ||
| 1074 | if (s == NULL) | ||
| 1075 | return (0); | ||
| 1076 | s->tls_session_ticket_ext_cb = cb; | ||
| 1077 | s->tls_session_ticket_ext_cb_arg = arg; | ||
| 1078 | return (1); | ||
| 1079 | } | ||
| 1080 | LSSL_ALIAS(SSL_set_session_ticket_ext_cb); | ||
| 1081 | |||
| 1082 | int | ||
| 1083 | SSL_set_session_ticket_ext(SSL *s, void *ext_data, int ext_len) | ||
| 1084 | { | ||
| 1085 | if (s->version >= TLS1_VERSION) { | ||
| 1086 | free(s->tlsext_session_ticket); | ||
| 1087 | s->tlsext_session_ticket = | ||
| 1088 | malloc(sizeof(TLS_SESSION_TICKET_EXT) + ext_len); | ||
| 1089 | if (!s->tlsext_session_ticket) { | ||
| 1090 | SSLerror(s, ERR_R_MALLOC_FAILURE); | ||
| 1091 | return 0; | ||
| 1092 | } | ||
| 1093 | |||
| 1094 | if (ext_data) { | ||
| 1095 | s->tlsext_session_ticket->length = ext_len; | ||
| 1096 | s->tlsext_session_ticket->data = | ||
| 1097 | s->tlsext_session_ticket + 1; | ||
| 1098 | memcpy(s->tlsext_session_ticket->data, | ||
| 1099 | ext_data, ext_len); | ||
| 1100 | } else { | ||
| 1101 | s->tlsext_session_ticket->length = 0; | ||
| 1102 | s->tlsext_session_ticket->data = NULL; | ||
| 1103 | } | ||
| 1104 | |||
| 1105 | return 1; | ||
| 1106 | } | ||
| 1107 | |||
| 1108 | return 0; | ||
| 1109 | } | ||
| 1110 | LSSL_ALIAS(SSL_set_session_ticket_ext); | ||
| 1111 | |||
| 1112 | typedef struct timeout_param_st { | ||
| 1113 | SSL_CTX *ctx; | ||
| 1114 | long time; | ||
| 1115 | struct lhash_st_SSL_SESSION *cache; | ||
| 1116 | } TIMEOUT_PARAM; | ||
| 1117 | |||
| 1118 | static void | ||
| 1119 | timeout_doall_arg(SSL_SESSION *s, TIMEOUT_PARAM *p) | ||
| 1120 | { | ||
| 1121 | if ((p->time == 0) || (p->time > (s->time + s->timeout))) { | ||
| 1122 | /* timeout */ | ||
| 1123 | /* The reason we don't call SSL_CTX_remove_session() is to | ||
| 1124 | * save on locking overhead */ | ||
| 1125 | (void)lh_SSL_SESSION_delete(p->cache, s); | ||
| 1126 | SSL_SESSION_list_remove(p->ctx, s); | ||
| 1127 | s->not_resumable = 1; | ||
| 1128 | if (p->ctx->remove_session_cb != NULL) | ||
| 1129 | p->ctx->remove_session_cb(p->ctx, s); | ||
| 1130 | SSL_SESSION_free(s); | ||
| 1131 | } | ||
| 1132 | } | ||
| 1133 | |||
| 1134 | static void | ||
| 1135 | timeout_LHASH_DOALL_ARG(void *arg1, void *arg2) | ||
| 1136 | { | ||
| 1137 | SSL_SESSION *a = arg1; | ||
| 1138 | TIMEOUT_PARAM *b = arg2; | ||
| 1139 | |||
| 1140 | timeout_doall_arg(a, b); | ||
| 1141 | } | ||
| 1142 | |||
| 1143 | /* XXX 2038 */ | ||
| 1144 | void | ||
| 1145 | SSL_CTX_flush_sessions(SSL_CTX *s, long t) | ||
| 1146 | { | ||
| 1147 | TIMEOUT_PARAM tp; | ||
| 1148 | |||
| 1149 | tp.ctx = s; | ||
| 1150 | tp.cache = s->sessions; | ||
| 1151 | if (tp.cache == NULL) | ||
| 1152 | return; | ||
| 1153 | tp.time = t; | ||
| 1154 | |||
| 1155 | CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); | ||
| 1156 | lh_SSL_SESSION_doall_arg(tp.cache, timeout_LHASH_DOALL_ARG, | ||
| 1157 | TIMEOUT_PARAM, &tp); | ||
| 1158 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); | ||
| 1159 | } | ||
| 1160 | LSSL_ALIAS(SSL_CTX_flush_sessions); | ||
| 1161 | |||
| 1162 | int | ||
| 1163 | ssl_clear_bad_session(SSL *s) | ||
| 1164 | { | ||
| 1165 | if ((s->session != NULL) && !(s->shutdown & SSL_SENT_SHUTDOWN) && | ||
| 1166 | !(SSL_in_init(s) || SSL_in_before(s))) { | ||
| 1167 | SSL_CTX_remove_session(s->ctx, s->session); | ||
| 1168 | return (1); | ||
| 1169 | } else | ||
| 1170 | return (0); | ||
| 1171 | } | ||
| 1172 | |||
| 1173 | /* locked by SSL_CTX in the calling function */ | ||
| 1174 | static void | ||
| 1175 | SSL_SESSION_list_remove(SSL_CTX *ctx, SSL_SESSION *s) | ||
| 1176 | { | ||
| 1177 | if (s->next == NULL || s->prev == NULL) | ||
| 1178 | return; | ||
| 1179 | |||
| 1180 | if (s->next == (SSL_SESSION *)&(ctx->session_cache_tail)) { | ||
| 1181 | /* last element in list */ | ||
| 1182 | if (s->prev == (SSL_SESSION *)&(ctx->session_cache_head)) { | ||
| 1183 | /* only one element in list */ | ||
| 1184 | ctx->session_cache_head = NULL; | ||
| 1185 | ctx->session_cache_tail = NULL; | ||
| 1186 | } else { | ||
| 1187 | ctx->session_cache_tail = s->prev; | ||
| 1188 | s->prev->next = | ||
| 1189 | (SSL_SESSION *)&(ctx->session_cache_tail); | ||
| 1190 | } | ||
| 1191 | } else { | ||
| 1192 | if (s->prev == (SSL_SESSION *)&(ctx->session_cache_head)) { | ||
| 1193 | /* first element in list */ | ||
| 1194 | ctx->session_cache_head = s->next; | ||
| 1195 | s->next->prev = | ||
| 1196 | (SSL_SESSION *)&(ctx->session_cache_head); | ||
| 1197 | } else { | ||
| 1198 | /* middle of list */ | ||
| 1199 | s->next->prev = s->prev; | ||
| 1200 | s->prev->next = s->next; | ||
| 1201 | } | ||
| 1202 | } | ||
| 1203 | s->prev = s->next = NULL; | ||
| 1204 | } | ||
| 1205 | |||
| 1206 | static void | ||
| 1207 | SSL_SESSION_list_add(SSL_CTX *ctx, SSL_SESSION *s) | ||
| 1208 | { | ||
| 1209 | if (s->next != NULL && s->prev != NULL) | ||
| 1210 | SSL_SESSION_list_remove(ctx, s); | ||
| 1211 | |||
| 1212 | if (ctx->session_cache_head == NULL) { | ||
| 1213 | ctx->session_cache_head = s; | ||
| 1214 | ctx->session_cache_tail = s; | ||
| 1215 | s->prev = (SSL_SESSION *)&(ctx->session_cache_head); | ||
| 1216 | s->next = (SSL_SESSION *)&(ctx->session_cache_tail); | ||
| 1217 | } else { | ||
| 1218 | s->next = ctx->session_cache_head; | ||
| 1219 | s->next->prev = s; | ||
| 1220 | s->prev = (SSL_SESSION *)&(ctx->session_cache_head); | ||
| 1221 | ctx->session_cache_head = s; | ||
| 1222 | } | ||
| 1223 | } | ||
| 1224 | |||
| 1225 | void | ||
| 1226 | SSL_CTX_sess_set_new_cb(SSL_CTX *ctx, | ||
| 1227 | int (*cb)(struct ssl_st *ssl, SSL_SESSION *sess)) { | ||
| 1228 | ctx->new_session_cb = cb; | ||
| 1229 | } | ||
| 1230 | LSSL_ALIAS(SSL_CTX_sess_set_new_cb); | ||
| 1231 | |||
| 1232 | int | ||
| 1233 | (*SSL_CTX_sess_get_new_cb(SSL_CTX *ctx))(SSL *ssl, SSL_SESSION *sess) | ||
| 1234 | { | ||
| 1235 | return ctx->new_session_cb; | ||
| 1236 | } | ||
| 1237 | LSSL_ALIAS(SSL_CTX_sess_get_new_cb); | ||
| 1238 | |||
| 1239 | void | ||
| 1240 | SSL_CTX_sess_set_remove_cb(SSL_CTX *ctx, | ||
| 1241 | void (*cb)(SSL_CTX *ctx, SSL_SESSION *sess)) | ||
| 1242 | { | ||
| 1243 | ctx->remove_session_cb = cb; | ||
| 1244 | } | ||
| 1245 | LSSL_ALIAS(SSL_CTX_sess_set_remove_cb); | ||
| 1246 | |||
| 1247 | void | ||
| 1248 | (*SSL_CTX_sess_get_remove_cb(SSL_CTX *ctx))(SSL_CTX * ctx, SSL_SESSION *sess) | ||
| 1249 | { | ||
| 1250 | return ctx->remove_session_cb; | ||
| 1251 | } | ||
| 1252 | LSSL_ALIAS(SSL_CTX_sess_get_remove_cb); | ||
| 1253 | |||
| 1254 | void | ||
| 1255 | SSL_CTX_sess_set_get_cb(SSL_CTX *ctx, SSL_SESSION *(*cb)(struct ssl_st *ssl, | ||
| 1256 | const unsigned char *data, int len, int *copy)) | ||
| 1257 | { | ||
| 1258 | ctx->get_session_cb = cb; | ||
| 1259 | } | ||
| 1260 | LSSL_ALIAS(SSL_CTX_sess_set_get_cb); | ||
| 1261 | |||
| 1262 | SSL_SESSION * | ||
| 1263 | (*SSL_CTX_sess_get_get_cb(SSL_CTX *ctx))(SSL *ssl, const unsigned char *data, | ||
| 1264 | int len, int *copy) | ||
| 1265 | { | ||
| 1266 | return ctx->get_session_cb; | ||
| 1267 | } | ||
| 1268 | LSSL_ALIAS(SSL_CTX_sess_get_get_cb); | ||
| 1269 | |||
| 1270 | void | ||
| 1271 | SSL_CTX_set_info_callback(SSL_CTX *ctx, | ||
| 1272 | void (*cb)(const SSL *ssl, int type, int val)) | ||
| 1273 | { | ||
| 1274 | ctx->info_callback = cb; | ||
| 1275 | } | ||
| 1276 | LSSL_ALIAS(SSL_CTX_set_info_callback); | ||
| 1277 | |||
| 1278 | void | ||
| 1279 | (*SSL_CTX_get_info_callback(SSL_CTX *ctx))(const SSL *ssl, int type, int val) | ||
| 1280 | { | ||
| 1281 | return ctx->info_callback; | ||
| 1282 | } | ||
| 1283 | LSSL_ALIAS(SSL_CTX_get_info_callback); | ||
| 1284 | |||
| 1285 | void | ||
| 1286 | SSL_CTX_set_client_cert_cb(SSL_CTX *ctx, | ||
| 1287 | int (*cb)(SSL *ssl, X509 **x509, EVP_PKEY **pkey)) | ||
| 1288 | { | ||
| 1289 | ctx->client_cert_cb = cb; | ||
| 1290 | } | ||
| 1291 | LSSL_ALIAS(SSL_CTX_set_client_cert_cb); | ||
| 1292 | |||
| 1293 | int | ||
| 1294 | (*SSL_CTX_get_client_cert_cb(SSL_CTX *ctx))(SSL * ssl, X509 ** x509, | ||
| 1295 | EVP_PKEY **pkey) | ||
| 1296 | { | ||
| 1297 | return ctx->client_cert_cb; | ||
| 1298 | } | ||
| 1299 | LSSL_ALIAS(SSL_CTX_get_client_cert_cb); | ||
| 1300 | |||
| 1301 | void | ||
| 1302 | SSL_CTX_set_cookie_generate_cb(SSL_CTX *ctx, | ||
| 1303 | int (*cb)(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len)) | ||
| 1304 | { | ||
| 1305 | ctx->app_gen_cookie_cb = cb; | ||
| 1306 | } | ||
| 1307 | LSSL_ALIAS(SSL_CTX_set_cookie_generate_cb); | ||
| 1308 | |||
| 1309 | void | ||
| 1310 | SSL_CTX_set_cookie_verify_cb(SSL_CTX *ctx, | ||
| 1311 | int (*cb)(SSL *ssl, const unsigned char *cookie, unsigned int cookie_len)) | ||
| 1312 | { | ||
| 1313 | ctx->app_verify_cookie_cb = cb; | ||
| 1314 | } | ||
| 1315 | LSSL_ALIAS(SSL_CTX_set_cookie_verify_cb); | ||
| 1316 | |||
| 1317 | int | ||
| 1318 | PEM_write_SSL_SESSION(FILE *fp, SSL_SESSION *x) | ||
| 1319 | { | ||
| 1320 | return PEM_ASN1_write((i2d_of_void *)i2d_SSL_SESSION, | ||
| 1321 | PEM_STRING_SSL_SESSION, fp, x, NULL, NULL, 0, NULL, NULL); | ||
| 1322 | } | ||
| 1323 | LSSL_ALIAS(PEM_write_SSL_SESSION); | ||
| 1324 | |||
| 1325 | SSL_SESSION * | ||
| 1326 | PEM_read_SSL_SESSION(FILE *fp, SSL_SESSION **x, pem_password_cb *cb, void *u) | ||
| 1327 | { | ||
| 1328 | return PEM_ASN1_read((d2i_of_void *)d2i_SSL_SESSION, | ||
| 1329 | PEM_STRING_SSL_SESSION, fp, (void **)x, cb, u); | ||
| 1330 | } | ||
| 1331 | LSSL_ALIAS(PEM_read_SSL_SESSION); | ||
| 1332 | |||
| 1333 | SSL_SESSION * | ||
| 1334 | PEM_read_bio_SSL_SESSION(BIO *bp, SSL_SESSION **x, pem_password_cb *cb, void *u) | ||
| 1335 | { | ||
| 1336 | return PEM_ASN1_read_bio((d2i_of_void *)d2i_SSL_SESSION, | ||
| 1337 | PEM_STRING_SSL_SESSION, bp, (void **)x, cb, u); | ||
| 1338 | } | ||
| 1339 | LSSL_ALIAS(PEM_read_bio_SSL_SESSION); | ||
| 1340 | |||
| 1341 | int | ||
| 1342 | PEM_write_bio_SSL_SESSION(BIO *bp, SSL_SESSION *x) | ||
| 1343 | { | ||
| 1344 | return PEM_ASN1_write_bio((i2d_of_void *)i2d_SSL_SESSION, | ||
| 1345 | PEM_STRING_SSL_SESSION, bp, x, NULL, NULL, 0, NULL, NULL); | ||
| 1346 | } | ||
| 1347 | LSSL_ALIAS(PEM_write_bio_SSL_SESSION); | ||
