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ae5c8664 MC |
1 | /* |
2 | * ! \file ssl/ssl_lib.c \brief Version independent SSL functions. | |
4f43d0e7 | 3 | */ |
58964a49 | 4 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
5 | * All rights reserved. |
6 | * | |
7 | * This package is an SSL implementation written | |
8 | * by Eric Young (eay@cryptsoft.com). | |
9 | * The implementation was written so as to conform with Netscapes SSL. | |
ae5c8664 | 10 | * |
d02b48c6 RE |
11 | * This library is free for commercial and non-commercial use as long as |
12 | * the following conditions are aheared to. The following conditions | |
13 | * apply to all code found in this distribution, be it the RC4, RSA, | |
14 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
15 | * included with this distribution is covered by the same copyright terms | |
16 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
ae5c8664 | 17 | * |
d02b48c6 RE |
18 | * Copyright remains Eric Young's, and as such any Copyright notices in |
19 | * the code are not to be removed. | |
20 | * If this package is used in a product, Eric Young should be given attribution | |
21 | * as the author of the parts of the library used. | |
22 | * This can be in the form of a textual message at program startup or | |
23 | * in documentation (online or textual) provided with the package. | |
ae5c8664 | 24 | * |
d02b48c6 RE |
25 | * Redistribution and use in source and binary forms, with or without |
26 | * modification, are permitted provided that the following conditions | |
27 | * are met: | |
28 | * 1. Redistributions of source code must retain the copyright | |
29 | * notice, this list of conditions and the following disclaimer. | |
30 | * 2. Redistributions in binary form must reproduce the above copyright | |
31 | * notice, this list of conditions and the following disclaimer in the | |
32 | * documentation and/or other materials provided with the distribution. | |
33 | * 3. All advertising materials mentioning features or use of this software | |
34 | * must display the following acknowledgement: | |
35 | * "This product includes cryptographic software written by | |
36 | * Eric Young (eay@cryptsoft.com)" | |
37 | * The word 'cryptographic' can be left out if the rouines from the library | |
38 | * being used are not cryptographic related :-). | |
ae5c8664 | 39 | * 4. If you include any Windows specific code (or a derivative thereof) from |
d02b48c6 RE |
40 | * the apps directory (application code) you must include an acknowledgement: |
41 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
ae5c8664 | 42 | * |
d02b48c6 RE |
43 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND |
44 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
45 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
46 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
47 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
48 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
49 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
50 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
51 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
52 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
53 | * SUCH DAMAGE. | |
ae5c8664 | 54 | * |
d02b48c6 RE |
55 | * The licence and distribution terms for any publically available version or |
56 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
57 | * copied and put under another distribution licence | |
58 | * [including the GNU Public Licence.] | |
59 | */ | |
bf21446a | 60 | /* ==================================================================== |
52b8dad8 | 61 | * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. |
bf21446a BM |
62 | * |
63 | * Redistribution and use in source and binary forms, with or without | |
64 | * modification, are permitted provided that the following conditions | |
65 | * are met: | |
66 | * | |
67 | * 1. Redistributions of source code must retain the above copyright | |
ae5c8664 | 68 | * notice, this list of conditions and the following disclaimer. |
bf21446a BM |
69 | * |
70 | * 2. Redistributions in binary form must reproduce the above copyright | |
71 | * notice, this list of conditions and the following disclaimer in | |
72 | * the documentation and/or other materials provided with the | |
73 | * distribution. | |
74 | * | |
75 | * 3. All advertising materials mentioning features or use of this | |
76 | * software must display the following acknowledgment: | |
77 | * "This product includes software developed by the OpenSSL Project | |
78 | * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" | |
79 | * | |
80 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | |
81 | * endorse or promote products derived from this software without | |
82 | * prior written permission. For written permission, please contact | |
83 | * openssl-core@openssl.org. | |
84 | * | |
85 | * 5. Products derived from this software may not be called "OpenSSL" | |
86 | * nor may "OpenSSL" appear in their names without prior written | |
87 | * permission of the OpenSSL Project. | |
88 | * | |
89 | * 6. Redistributions of any form whatsoever must retain the following | |
90 | * acknowledgment: | |
91 | * "This product includes software developed by the OpenSSL Project | |
92 | * for use in the OpenSSL Toolkit (http://www.openssl.org/)" | |
93 | * | |
94 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | |
95 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
96 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
97 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | |
98 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
99 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
100 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | |
101 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
102 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
103 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
104 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | |
105 | * OF THE POSSIBILITY OF SUCH DAMAGE. | |
106 | * ==================================================================== | |
107 | * | |
108 | * This product includes cryptographic software written by Eric Young | |
109 | * (eay@cryptsoft.com). This product includes software written by Tim | |
110 | * Hudson (tjh@cryptsoft.com). | |
111 | * | |
112 | */ | |
ea262260 BM |
113 | /* ==================================================================== |
114 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
ae5c8664 | 115 | * ECC cipher suite support in OpenSSL originally developed by |
ea262260 BM |
116 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
117 | */ | |
ddac1974 NL |
118 | /* ==================================================================== |
119 | * Copyright 2005 Nokia. All rights reserved. | |
120 | * | |
121 | * The portions of the attached software ("Contribution") is developed by | |
122 | * Nokia Corporation and is licensed pursuant to the OpenSSL open source | |
123 | * license. | |
124 | * | |
125 | * The Contribution, originally written by Mika Kousa and Pasi Eronen of | |
126 | * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites | |
127 | * support (see RFC 4279) to OpenSSL. | |
128 | * | |
129 | * No patent licenses or other rights except those expressly stated in | |
130 | * the OpenSSL open source license shall be deemed granted or received | |
131 | * expressly, by implication, estoppel, or otherwise. | |
132 | * | |
133 | * No assurances are provided by Nokia that the Contribution does not | |
134 | * infringe the patent or other intellectual property rights of any third | |
135 | * party or that the license provides you with all the necessary rights | |
136 | * to make use of the Contribution. | |
137 | * | |
138 | * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN | |
139 | * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA | |
140 | * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY | |
141 | * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR | |
142 | * OTHERWISE. | |
143 | */ | |
bbb8de09 | 144 | |
027e257b | 145 | #ifdef REF_CHECK |
ae5c8664 | 146 | # include <assert.h> |
027e257b | 147 | #endif |
d02b48c6 | 148 | #include <stdio.h> |
7b63c0fa LJ |
149 | #include "ssl_locl.h" |
150 | #include "kssl_lcl.h" | |
ec577822 BM |
151 | #include <openssl/objects.h> |
152 | #include <openssl/lhash.h> | |
bb7cd4e3 | 153 | #include <openssl/x509v3.h> |
6434abbf | 154 | #include <openssl/rand.h> |
67c8e7f4 | 155 | #include <openssl/ocsp.h> |
3eeaab4b | 156 | #ifndef OPENSSL_NO_DH |
ae5c8664 | 157 | # include <openssl/dh.h> |
3eeaab4b | 158 | #endif |
bdfe932d | 159 | #ifndef OPENSSL_NO_ENGINE |
ae5c8664 MC |
160 | # include <openssl/engine.h> |
161 | #endif | |
162 | ||
163 | const char *SSL_version_str = OPENSSL_VERSION_TEXT; | |
164 | ||
165 | SSL3_ENC_METHOD ssl3_undef_enc_method = { | |
166 | /* | |
167 | * evil casts, but these functions are only called if there's a library | |
168 | * bug | |
169 | */ | |
170 | (int (*)(SSL *, int))ssl_undefined_function, | |
171 | (int (*)(SSL *, unsigned char *, int))ssl_undefined_function, | |
172 | ssl_undefined_function, | |
173 | (int (*)(SSL *, unsigned char *, unsigned char *, int)) | |
174 | ssl_undefined_function, | |
175 | (int (*)(SSL *, int))ssl_undefined_function, | |
176 | (int (*)(SSL *, const char *, int, unsigned char *)) | |
177 | ssl_undefined_function, | |
178 | 0, /* finish_mac_length */ | |
179 | (int (*)(SSL *, int, unsigned char *))ssl_undefined_function, | |
180 | NULL, /* client_finished_label */ | |
181 | 0, /* client_finished_label_len */ | |
182 | NULL, /* server_finished_label */ | |
183 | 0, /* server_finished_label_len */ | |
184 | (int (*)(int))ssl_undefined_function, | |
185 | (int (*)(SSL *, unsigned char *, size_t, const char *, | |
186 | size_t, const unsigned char *, size_t, | |
187 | int use_context))ssl_undefined_function, | |
188 | }; | |
d02b48c6 | 189 | |
4f43d0e7 | 190 | int SSL_clear(SSL *s) |
ae5c8664 | 191 | { |
d02b48c6 | 192 | |
ae5c8664 MC |
193 | if (s->method == NULL) { |
194 | SSLerr(SSL_F_SSL_CLEAR, SSL_R_NO_METHOD_SPECIFIED); | |
195 | return (0); | |
196 | } | |
d02b48c6 | 197 | |
ae5c8664 MC |
198 | if (ssl_clear_bad_session(s)) { |
199 | SSL_SESSION_free(s->session); | |
200 | s->session = NULL; | |
201 | } | |
d62bfb39 | 202 | |
ae5c8664 MC |
203 | s->error = 0; |
204 | s->hit = 0; | |
205 | s->shutdown = 0; | |
d02b48c6 | 206 | |
65a6a1ff MC |
207 | #if 0 |
208 | /* | |
209 | * Disabled since version 1.10 of this file (early return not | |
210 | * needed because SSL_clear is not called when doing renegotiation) | |
211 | */ | |
212 | /* | |
213 | * This is set if we are doing dynamic renegotiation so keep | |
214 | * the old cipher. It is sort of a SSL_clear_lite :-) | |
215 | */ | |
ae5c8664 MC |
216 | if (s->renegotiate) |
217 | return (1); | |
a2a01589 | 218 | #else |
ae5c8664 MC |
219 | if (s->renegotiate) { |
220 | SSLerr(SSL_F_SSL_CLEAR, ERR_R_INTERNAL_ERROR); | |
221 | return 0; | |
222 | } | |
413c4f45 | 223 | #endif |
d02b48c6 | 224 | |
ae5c8664 | 225 | s->type = 0; |
d02b48c6 | 226 | |
ae5c8664 | 227 | s->state = SSL_ST_BEFORE | ((s->server) ? SSL_ST_ACCEPT : SSL_ST_CONNECT); |
413c4f45 | 228 | |
ae5c8664 MC |
229 | s->version = s->method->version; |
230 | s->client_version = s->version; | |
231 | s->rwstate = SSL_NOTHING; | |
232 | s->rstate = SSL_ST_READ_HEADER; | |
544ebbce | 233 | #if 0 |
ae5c8664 | 234 | s->read_ahead = s->ctx->read_ahead; |
544ebbce | 235 | #endif |
d02b48c6 | 236 | |
ae5c8664 MC |
237 | if (s->init_buf != NULL) { |
238 | BUF_MEM_free(s->init_buf); | |
239 | s->init_buf = NULL; | |
240 | } | |
d02b48c6 | 241 | |
ae5c8664 MC |
242 | ssl_clear_cipher_ctx(s); |
243 | ssl_clear_hash_ctx(&s->read_hash); | |
244 | ssl_clear_hash_ctx(&s->write_hash); | |
d02b48c6 | 245 | |
ae5c8664 | 246 | s->first_packet = 0; |
d02b48c6 | 247 | |
413c4f45 | 248 | #if 1 |
ae5c8664 MC |
249 | /* |
250 | * Check to see if we were changed into a different method, if so, revert | |
251 | * back if we are not doing session-id reuse. | |
252 | */ | |
253 | if (!s->in_handshake && (s->session == NULL) | |
254 | && (s->method != s->ctx->method)) { | |
255 | s->method->ssl_free(s); | |
256 | s->method = s->ctx->method; | |
257 | if (!s->method->ssl_new(s)) | |
258 | return (0); | |
259 | } else | |
260 | #endif | |
261 | s->method->ssl_clear(s); | |
262 | return (1); | |
263 | } | |
d02b48c6 | 264 | |
4f43d0e7 | 265 | /** Used to change an SSL_CTXs default SSL method type */ |
ae5c8664 MC |
266 | int SSL_CTX_set_ssl_version(SSL_CTX *ctx, const SSL_METHOD *meth) |
267 | { | |
268 | STACK_OF(SSL_CIPHER) *sk; | |
269 | ||
270 | ctx->method = meth; | |
271 | ||
272 | sk = ssl_create_cipher_list(ctx->method, &(ctx->cipher_list), | |
273 | &(ctx->cipher_list_by_id), | |
274 | meth->version == | |
275 | SSL2_VERSION ? "SSLv2" : | |
276 | SSL_DEFAULT_CIPHER_LIST, ctx->cert); | |
277 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= 0)) { | |
278 | SSLerr(SSL_F_SSL_CTX_SET_SSL_VERSION, | |
279 | SSL_R_SSL_LIBRARY_HAS_NO_CIPHERS); | |
280 | return (0); | |
281 | } | |
282 | return (1); | |
283 | } | |
d02b48c6 | 284 | |
4f43d0e7 | 285 | SSL *SSL_new(SSL_CTX *ctx) |
ae5c8664 MC |
286 | { |
287 | SSL *s; | |
288 | ||
289 | if (ctx == NULL) { | |
290 | SSLerr(SSL_F_SSL_NEW, SSL_R_NULL_SSL_CTX); | |
291 | return (NULL); | |
292 | } | |
293 | if (ctx->method == NULL) { | |
294 | SSLerr(SSL_F_SSL_NEW, SSL_R_SSL_CTX_HAS_NO_DEFAULT_SSL_VERSION); | |
295 | return (NULL); | |
296 | } | |
297 | ||
298 | s = (SSL *)OPENSSL_malloc(sizeof(SSL)); | |
299 | if (s == NULL) | |
300 | goto err; | |
301 | memset(s, 0, sizeof(SSL)); | |
302 | ||
303 | #ifndef OPENSSL_NO_KRB5 | |
304 | s->kssl_ctx = kssl_ctx_new(); | |
305 | #endif /* OPENSSL_NO_KRB5 */ | |
306 | ||
307 | s->options = ctx->options; | |
308 | s->mode = ctx->mode; | |
309 | s->max_cert_list = ctx->max_cert_list; | |
310 | ||
311 | if (ctx->cert != NULL) { | |
312 | /* | |
313 | * Earlier library versions used to copy the pointer to the CERT, not | |
314 | * its contents; only when setting new parameters for the per-SSL | |
315 | * copy, ssl_cert_new would be called (and the direct reference to | |
316 | * the per-SSL_CTX settings would be lost, but those still were | |
317 | * indirectly accessed for various purposes, and for that reason they | |
318 | * used to be known as s->ctx->default_cert). Now we don't look at the | |
319 | * SSL_CTX's CERT after having duplicated it once. | |
320 | */ | |
321 | ||
322 | s->cert = ssl_cert_dup(ctx->cert); | |
323 | if (s->cert == NULL) | |
324 | goto err; | |
325 | } else | |
326 | s->cert = NULL; /* Cannot really happen (see SSL_CTX_new) */ | |
327 | ||
328 | s->read_ahead = ctx->read_ahead; | |
329 | s->msg_callback = ctx->msg_callback; | |
330 | s->msg_callback_arg = ctx->msg_callback_arg; | |
331 | s->verify_mode = ctx->verify_mode; | |
5d7c222d | 332 | #if 0 |
ae5c8664 MC |
333 | s->verify_depth = ctx->verify_depth; |
334 | #endif | |
335 | s->sid_ctx_length = ctx->sid_ctx_length; | |
336 | OPENSSL_assert(s->sid_ctx_length <= sizeof s->sid_ctx); | |
337 | memcpy(&s->sid_ctx, &ctx->sid_ctx, sizeof(s->sid_ctx)); | |
338 | s->verify_callback = ctx->default_verify_callback; | |
339 | s->generate_session_id = ctx->generate_session_id; | |
340 | ||
341 | s->param = X509_VERIFY_PARAM_new(); | |
342 | if (!s->param) | |
343 | goto err; | |
344 | X509_VERIFY_PARAM_inherit(s->param, ctx->param); | |
5d7c222d | 345 | #if 0 |
ae5c8664 MC |
346 | s->purpose = ctx->purpose; |
347 | s->trust = ctx->trust; | |
5d7c222d | 348 | #endif |
ae5c8664 MC |
349 | s->quiet_shutdown = ctx->quiet_shutdown; |
350 | s->max_send_fragment = ctx->max_send_fragment; | |
bf21446a | 351 | |
ae5c8664 MC |
352 | CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); |
353 | s->ctx = ctx; | |
1aeb3da8 | 354 | #ifndef OPENSSL_NO_TLSEXT |
ae5c8664 MC |
355 | s->tlsext_debug_cb = 0; |
356 | s->tlsext_debug_arg = NULL; | |
357 | s->tlsext_ticket_expected = 0; | |
358 | s->tlsext_status_type = -1; | |
359 | s->tlsext_status_expected = 0; | |
360 | s->tlsext_ocsp_ids = NULL; | |
361 | s->tlsext_ocsp_exts = NULL; | |
362 | s->tlsext_ocsp_resp = NULL; | |
363 | s->tlsext_ocsp_resplen = -1; | |
364 | CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); | |
365 | s->initial_ctx = ctx; | |
366 | # ifndef OPENSSL_NO_EC | |
367 | if (ctx->tlsext_ecpointformatlist) { | |
368 | s->tlsext_ecpointformatlist = | |
369 | BUF_memdup(ctx->tlsext_ecpointformatlist, | |
370 | ctx->tlsext_ecpointformatlist_length); | |
371 | if (!s->tlsext_ecpointformatlist) | |
372 | goto err; | |
373 | s->tlsext_ecpointformatlist_length = | |
374 | ctx->tlsext_ecpointformatlist_length; | |
375 | } | |
376 | if (ctx->tlsext_ellipticcurvelist) { | |
377 | s->tlsext_ellipticcurvelist = | |
378 | BUF_memdup(ctx->tlsext_ellipticcurvelist, | |
379 | ctx->tlsext_ellipticcurvelist_length); | |
380 | if (!s->tlsext_ellipticcurvelist) | |
381 | goto err; | |
382 | s->tlsext_ellipticcurvelist_length = | |
383 | ctx->tlsext_ellipticcurvelist_length; | |
384 | } | |
385 | # endif | |
68b33cc5 | 386 | # ifndef OPENSSL_NO_NEXTPROTONEG |
ae5c8664 | 387 | s->next_proto_negotiated = NULL; |
68b33cc5 | 388 | # endif |
b0d6f3c5 | 389 | |
ae5c8664 MC |
390 | if (s->ctx->alpn_client_proto_list) { |
391 | s->alpn_client_proto_list = | |
392 | OPENSSL_malloc(s->ctx->alpn_client_proto_list_len); | |
393 | if (s->alpn_client_proto_list == NULL) | |
394 | goto err; | |
395 | memcpy(s->alpn_client_proto_list, s->ctx->alpn_client_proto_list, | |
396 | s->ctx->alpn_client_proto_list_len); | |
397 | s->alpn_client_proto_list_len = s->ctx->alpn_client_proto_list_len; | |
398 | } | |
1aeb3da8 | 399 | #endif |
d02b48c6 | 400 | |
ae5c8664 | 401 | s->verify_result = X509_V_OK; |
d02b48c6 | 402 | |
ae5c8664 | 403 | s->method = ctx->method; |
d02b48c6 | 404 | |
ae5c8664 MC |
405 | if (!s->method->ssl_new(s)) |
406 | goto err; | |
d02b48c6 | 407 | |
ae5c8664 MC |
408 | s->references = 1; |
409 | s->server = (ctx->method->ssl_accept == ssl_undefined_function) ? 0 : 1; | |
bf21446a | 410 | |
ae5c8664 | 411 | SSL_clear(s); |
58964a49 | 412 | |
ae5c8664 | 413 | CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); |
58964a49 | 414 | |
ddac1974 | 415 | #ifndef OPENSSL_NO_PSK |
ae5c8664 MC |
416 | s->psk_client_callback = ctx->psk_client_callback; |
417 | s->psk_server_callback = ctx->psk_server_callback; | |
ddac1974 NL |
418 | #endif |
419 | ||
ae5c8664 MC |
420 | return (s); |
421 | err: | |
422 | if (s != NULL) | |
423 | SSL_free(s); | |
424 | SSLerr(SSL_F_SSL_NEW, ERR_R_MALLOC_FAILURE); | |
425 | return (NULL); | |
426 | } | |
d02b48c6 | 427 | |
ae5c8664 MC |
428 | int SSL_CTX_set_session_id_context(SSL_CTX *ctx, const unsigned char *sid_ctx, |
429 | unsigned int sid_ctx_len) | |
430 | { | |
431 | if (sid_ctx_len > sizeof ctx->sid_ctx) { | |
432 | SSLerr(SSL_F_SSL_CTX_SET_SESSION_ID_CONTEXT, | |
433 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
434 | return 0; | |
435 | } | |
436 | ctx->sid_ctx_length = sid_ctx_len; | |
437 | memcpy(ctx->sid_ctx, sid_ctx, sid_ctx_len); | |
4eb77b26 BM |
438 | |
439 | return 1; | |
ae5c8664 | 440 | } |
4eb77b26 | 441 | |
ae5c8664 MC |
442 | int SSL_set_session_id_context(SSL *ssl, const unsigned char *sid_ctx, |
443 | unsigned int sid_ctx_len) | |
444 | { | |
445 | if (sid_ctx_len > SSL_MAX_SID_CTX_LENGTH) { | |
446 | SSLerr(SSL_F_SSL_SET_SESSION_ID_CONTEXT, | |
447 | SSL_R_SSL_SESSION_ID_CONTEXT_TOO_LONG); | |
448 | return 0; | |
449 | } | |
450 | ssl->sid_ctx_length = sid_ctx_len; | |
451 | memcpy(ssl->sid_ctx, sid_ctx, sid_ctx_len); | |
b4cadc6e BL |
452 | |
453 | return 1; | |
ae5c8664 | 454 | } |
b4cadc6e | 455 | |
dc644fe2 | 456 | int SSL_CTX_set_generate_session_id(SSL_CTX *ctx, GEN_SESSION_CB cb) |
ae5c8664 MC |
457 | { |
458 | CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); | |
459 | ctx->generate_session_id = cb; | |
460 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); | |
461 | return 1; | |
462 | } | |
dc644fe2 GT |
463 | |
464 | int SSL_set_generate_session_id(SSL *ssl, GEN_SESSION_CB cb) | |
ae5c8664 MC |
465 | { |
466 | CRYPTO_w_lock(CRYPTO_LOCK_SSL); | |
467 | ssl->generate_session_id = cb; | |
468 | CRYPTO_w_unlock(CRYPTO_LOCK_SSL); | |
469 | return 1; | |
470 | } | |
dc644fe2 | 471 | |
f85c9904 | 472 | int SSL_has_matching_session_id(const SSL *ssl, const unsigned char *id, |
ae5c8664 MC |
473 | unsigned int id_len) |
474 | { | |
475 | /* | |
476 | * A quick examination of SSL_SESSION_hash and SSL_SESSION_cmp shows how | |
477 | * we can "construct" a session to give us the desired check - ie. to | |
478 | * find if there's a session in the hash table that would conflict with | |
479 | * any new session built out of this id/id_len and the ssl_version in use | |
480 | * by this SSL. | |
481 | */ | |
482 | SSL_SESSION r, *p; | |
483 | ||
484 | if (id_len > sizeof r.session_id) | |
485 | return 0; | |
486 | ||
487 | r.ssl_version = ssl->version; | |
488 | r.session_id_length = id_len; | |
489 | memcpy(r.session_id, id, id_len); | |
490 | /* | |
491 | * NB: SSLv2 always uses a fixed 16-byte session ID, so even if a | |
492 | * callback is calling us to check the uniqueness of a shorter ID, it | |
493 | * must be compared as a padded-out ID because that is what it will be | |
494 | * converted to when the callback has finished choosing it. | |
495 | */ | |
496 | if ((r.ssl_version == SSL2_VERSION) && | |
497 | (id_len < SSL2_SSL_SESSION_ID_LENGTH)) { | |
498 | memset(r.session_id + id_len, 0, SSL2_SSL_SESSION_ID_LENGTH - id_len); | |
499 | r.session_id_length = SSL2_SSL_SESSION_ID_LENGTH; | |
500 | } | |
501 | ||
502 | CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); | |
503 | p = lh_SSL_SESSION_retrieve(ssl->ctx->sessions, &r); | |
504 | CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); | |
505 | return (p != NULL); | |
506 | } | |
dc644fe2 | 507 | |
bb7cd4e3 | 508 | int SSL_CTX_set_purpose(SSL_CTX *s, int purpose) |
ae5c8664 MC |
509 | { |
510 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
511 | } | |
bb7cd4e3 DSH |
512 | |
513 | int SSL_set_purpose(SSL *s, int purpose) | |
ae5c8664 MC |
514 | { |
515 | return X509_VERIFY_PARAM_set_purpose(s->param, purpose); | |
516 | } | |
926a56bf | 517 | |
bb7cd4e3 | 518 | int SSL_CTX_set_trust(SSL_CTX *s, int trust) |
ae5c8664 MC |
519 | { |
520 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
521 | } | |
bb7cd4e3 DSH |
522 | |
523 | int SSL_set_trust(SSL *s, int trust) | |
ae5c8664 MC |
524 | { |
525 | return X509_VERIFY_PARAM_set_trust(s->param, trust); | |
526 | } | |
bb7cd4e3 | 527 | |
29b0c4a0 | 528 | int SSL_CTX_set1_param(SSL_CTX *ctx, X509_VERIFY_PARAM *vpm) |
ae5c8664 MC |
529 | { |
530 | return X509_VERIFY_PARAM_set1(ctx->param, vpm); | |
531 | } | |
29b0c4a0 DSH |
532 | |
533 | int SSL_set1_param(SSL *ssl, X509_VERIFY_PARAM *vpm) | |
ae5c8664 MC |
534 | { |
535 | return X509_VERIFY_PARAM_set1(ssl->param, vpm); | |
536 | } | |
29b0c4a0 | 537 | |
bf4863b3 | 538 | X509_VERIFY_PARAM *SSL_CTX_get0_param(SSL_CTX *ctx) |
ae5c8664 MC |
539 | { |
540 | return ctx->param; | |
541 | } | |
bf4863b3 DSH |
542 | |
543 | X509_VERIFY_PARAM *SSL_get0_param(SSL *ssl) | |
ae5c8664 MC |
544 | { |
545 | return ssl->param; | |
546 | } | |
bf4863b3 | 547 | |
d312f7be | 548 | void SSL_certs_clear(SSL *s) |
ae5c8664 MC |
549 | { |
550 | ssl_cert_clear_certs(s->cert); | |
551 | } | |
d312f7be | 552 | |
4f43d0e7 | 553 | void SSL_free(SSL *s) |
ae5c8664 MC |
554 | { |
555 | int i; | |
58964a49 | 556 | |
ae5c8664 MC |
557 | if (s == NULL) |
558 | return; | |
e03ddfae | 559 | |
ae5c8664 | 560 | i = CRYPTO_add(&s->references, -1, CRYPTO_LOCK_SSL); |
58964a49 | 561 | #ifdef REF_PRINT |
ae5c8664 | 562 | REF_PRINT("SSL", s); |
58964a49 | 563 | #endif |
ae5c8664 MC |
564 | if (i > 0) |
565 | return; | |
58964a49 | 566 | #ifdef REF_CHECK |
ae5c8664 MC |
567 | if (i < 0) { |
568 | fprintf(stderr, "SSL_free, bad reference count\n"); | |
569 | abort(); /* ok */ | |
570 | } | |
1aeb3da8 | 571 | #endif |
d02b48c6 | 572 | |
ae5c8664 MC |
573 | if (s->param) |
574 | X509_VERIFY_PARAM_free(s->param); | |
575 | ||
576 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL, s, &s->ex_data); | |
577 | ||
578 | if (s->bbio != NULL) { | |
579 | /* If the buffering BIO is in place, pop it off */ | |
580 | if (s->bbio == s->wbio) { | |
581 | s->wbio = BIO_pop(s->wbio); | |
582 | } | |
583 | BIO_free(s->bbio); | |
584 | s->bbio = NULL; | |
585 | } | |
586 | if (s->rbio != NULL) | |
587 | BIO_free_all(s->rbio); | |
588 | if ((s->wbio != NULL) && (s->wbio != s->rbio)) | |
589 | BIO_free_all(s->wbio); | |
590 | ||
591 | if (s->init_buf != NULL) | |
592 | BUF_MEM_free(s->init_buf); | |
593 | ||
594 | /* add extra stuff */ | |
595 | if (s->cipher_list != NULL) | |
596 | sk_SSL_CIPHER_free(s->cipher_list); | |
597 | if (s->cipher_list_by_id != NULL) | |
598 | sk_SSL_CIPHER_free(s->cipher_list_by_id); | |
599 | ||
600 | /* Make the next call work :-) */ | |
601 | if (s->session != NULL) { | |
602 | ssl_clear_bad_session(s); | |
603 | SSL_SESSION_free(s->session); | |
604 | } | |
d02b48c6 | 605 | |
ae5c8664 MC |
606 | ssl_clear_cipher_ctx(s); |
607 | ssl_clear_hash_ctx(&s->read_hash); | |
608 | ssl_clear_hash_ctx(&s->write_hash); | |
d02b48c6 | 609 | |
ae5c8664 MC |
610 | if (s->cert != NULL) |
611 | ssl_cert_free(s->cert); | |
612 | /* Free up if allocated */ | |
613 | ||
614 | #ifndef OPENSSL_NO_TLSEXT | |
615 | if (s->tlsext_hostname) | |
616 | OPENSSL_free(s->tlsext_hostname); | |
617 | if (s->initial_ctx) | |
618 | SSL_CTX_free(s->initial_ctx); | |
619 | # ifndef OPENSSL_NO_EC | |
620 | if (s->tlsext_ecpointformatlist) | |
621 | OPENSSL_free(s->tlsext_ecpointformatlist); | |
622 | if (s->tlsext_ellipticcurvelist) | |
623 | OPENSSL_free(s->tlsext_ellipticcurvelist); | |
624 | # endif /* OPENSSL_NO_EC */ | |
625 | if (s->tlsext_opaque_prf_input) | |
626 | OPENSSL_free(s->tlsext_opaque_prf_input); | |
627 | if (s->tlsext_ocsp_exts) | |
628 | sk_X509_EXTENSION_pop_free(s->tlsext_ocsp_exts, X509_EXTENSION_free); | |
629 | if (s->tlsext_ocsp_ids) | |
630 | sk_OCSP_RESPID_pop_free(s->tlsext_ocsp_ids, OCSP_RESPID_free); | |
631 | if (s->tlsext_ocsp_resp) | |
632 | OPENSSL_free(s->tlsext_ocsp_resp); | |
633 | if (s->alpn_client_proto_list) | |
634 | OPENSSL_free(s->alpn_client_proto_list); | |
635 | #endif | |
636 | ||
637 | if (s->client_CA != NULL) | |
638 | sk_X509_NAME_pop_free(s->client_CA, X509_NAME_free); | |
639 | ||
640 | if (s->method != NULL) | |
641 | s->method->ssl_free(s); | |
642 | ||
643 | if (s->ctx) | |
644 | SSL_CTX_free(s->ctx); | |
cc6688d7 | 645 | |
ae5c8664 MC |
646 | #ifndef OPENSSL_NO_KRB5 |
647 | if (s->kssl_ctx != NULL) | |
648 | kssl_ctx_free(s->kssl_ctx); | |
649 | #endif /* OPENSSL_NO_KRB5 */ | |
0e6c20da | 650 | |
68b33cc5 | 651 | #if !defined(OPENSSL_NO_TLSEXT) && !defined(OPENSSL_NO_NEXTPROTONEG) |
ae5c8664 MC |
652 | if (s->next_proto_negotiated) |
653 | OPENSSL_free(s->next_proto_negotiated); | |
68b33cc5 BL |
654 | #endif |
655 | ||
7b0194db | 656 | #ifndef OPENSSL_NO_SRTP |
ae5c8664 MC |
657 | if (s->srtp_profiles) |
658 | sk_SRTP_PROTECTION_PROFILE_free(s->srtp_profiles); | |
659 | #endif | |
660 | ||
661 | OPENSSL_free(s); | |
662 | } | |
663 | ||
664 | void SSL_set_bio(SSL *s, BIO *rbio, BIO *wbio) | |
665 | { | |
666 | /* | |
667 | * If the output buffering BIO is still in place, remove it | |
668 | */ | |
669 | if (s->bbio != NULL) { | |
670 | if (s->wbio == s->bbio) { | |
671 | s->wbio = s->wbio->next_bio; | |
672 | s->bbio->next_bio = NULL; | |
673 | } | |
674 | } | |
675 | if ((s->rbio != NULL) && (s->rbio != rbio)) | |
676 | BIO_free_all(s->rbio); | |
677 | if ((s->wbio != NULL) && (s->wbio != wbio) && (s->rbio != s->wbio)) | |
678 | BIO_free_all(s->wbio); | |
679 | s->rbio = rbio; | |
680 | s->wbio = wbio; | |
681 | } | |
d02b48c6 | 682 | |
0821bcd4 | 683 | BIO *SSL_get_rbio(const SSL *s) |
ae5c8664 MC |
684 | { |
685 | return (s->rbio); | |
686 | } | |
d02b48c6 | 687 | |
0821bcd4 | 688 | BIO *SSL_get_wbio(const SSL *s) |
ae5c8664 MC |
689 | { |
690 | return (s->wbio); | |
691 | } | |
d02b48c6 | 692 | |
0821bcd4 | 693 | int SSL_get_fd(const SSL *s) |
ae5c8664 MC |
694 | { |
695 | return (SSL_get_rfd(s)); | |
696 | } | |
24cbf3ef | 697 | |
0821bcd4 | 698 | int SSL_get_rfd(const SSL *s) |
ae5c8664 MC |
699 | { |
700 | int ret = -1; | |
701 | BIO *b, *r; | |
702 | ||
703 | b = SSL_get_rbio(s); | |
704 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
705 | if (r != NULL) | |
706 | BIO_get_fd(r, &ret); | |
707 | return (ret); | |
708 | } | |
d02b48c6 | 709 | |
0821bcd4 | 710 | int SSL_get_wfd(const SSL *s) |
ae5c8664 MC |
711 | { |
712 | int ret = -1; | |
713 | BIO *b, *r; | |
714 | ||
715 | b = SSL_get_wbio(s); | |
716 | r = BIO_find_type(b, BIO_TYPE_DESCRIPTOR); | |
717 | if (r != NULL) | |
718 | BIO_get_fd(r, &ret); | |
719 | return (ret); | |
720 | } | |
24cbf3ef | 721 | |
bc36ee62 | 722 | #ifndef OPENSSL_NO_SOCK |
ae5c8664 MC |
723 | int SSL_set_fd(SSL *s, int fd) |
724 | { | |
725 | int ret = 0; | |
726 | BIO *bio = NULL; | |
727 | ||
728 | bio = BIO_new(BIO_s_socket()); | |
729 | ||
730 | if (bio == NULL) { | |
731 | SSLerr(SSL_F_SSL_SET_FD, ERR_R_BUF_LIB); | |
732 | goto err; | |
733 | } | |
734 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
735 | SSL_set_bio(s, bio, bio); | |
736 | ret = 1; | |
737 | err: | |
738 | return (ret); | |
739 | } | |
740 | ||
741 | int SSL_set_wfd(SSL *s, int fd) | |
742 | { | |
743 | int ret = 0; | |
744 | BIO *bio = NULL; | |
745 | ||
746 | if ((s->rbio == NULL) || (BIO_method_type(s->rbio) != BIO_TYPE_SOCKET) | |
747 | || ((int)BIO_get_fd(s->rbio, NULL) != fd)) { | |
748 | bio = BIO_new(BIO_s_socket()); | |
749 | ||
750 | if (bio == NULL) { | |
751 | SSLerr(SSL_F_SSL_SET_WFD, ERR_R_BUF_LIB); | |
752 | goto err; | |
753 | } | |
754 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
755 | SSL_set_bio(s, SSL_get_rbio(s), bio); | |
756 | } else | |
757 | SSL_set_bio(s, SSL_get_rbio(s), SSL_get_rbio(s)); | |
758 | ret = 1; | |
759 | err: | |
760 | return (ret); | |
761 | } | |
d02b48c6 | 762 | |
ae5c8664 MC |
763 | int SSL_set_rfd(SSL *s, int fd) |
764 | { | |
765 | int ret = 0; | |
766 | BIO *bio = NULL; | |
767 | ||
768 | if ((s->wbio == NULL) || (BIO_method_type(s->wbio) != BIO_TYPE_SOCKET) | |
769 | || ((int)BIO_get_fd(s->wbio, NULL) != fd)) { | |
770 | bio = BIO_new(BIO_s_socket()); | |
771 | ||
772 | if (bio == NULL) { | |
773 | SSLerr(SSL_F_SSL_SET_RFD, ERR_R_BUF_LIB); | |
774 | goto err; | |
775 | } | |
776 | BIO_set_fd(bio, fd, BIO_NOCLOSE); | |
777 | SSL_set_bio(s, bio, SSL_get_wbio(s)); | |
778 | } else | |
779 | SSL_set_bio(s, SSL_get_wbio(s), SSL_get_wbio(s)); | |
780 | ret = 1; | |
781 | err: | |
782 | return (ret); | |
783 | } | |
784 | #endif | |
ca03109c BM |
785 | |
786 | /* return length of latest Finished message we sent, copy to 'buf' */ | |
0821bcd4 | 787 | size_t SSL_get_finished(const SSL *s, void *buf, size_t count) |
ae5c8664 MC |
788 | { |
789 | size_t ret = 0; | |
790 | ||
791 | if (s->s3 != NULL) { | |
792 | ret = s->s3->tmp.finish_md_len; | |
793 | if (count > ret) | |
794 | count = ret; | |
795 | memcpy(buf, s->s3->tmp.finish_md, count); | |
796 | } | |
797 | return ret; | |
798 | } | |
ca03109c BM |
799 | |
800 | /* return length of latest Finished message we expected, copy to 'buf' */ | |
0821bcd4 | 801 | size_t SSL_get_peer_finished(const SSL *s, void *buf, size_t count) |
ae5c8664 MC |
802 | { |
803 | size_t ret = 0; | |
ca03109c | 804 | |
ae5c8664 MC |
805 | if (s->s3 != NULL) { |
806 | ret = s->s3->tmp.peer_finish_md_len; | |
807 | if (count > ret) | |
808 | count = ret; | |
809 | memcpy(buf, s->s3->tmp.peer_finish_md, count); | |
810 | } | |
811 | return ret; | |
812 | } | |
ca03109c | 813 | |
0821bcd4 | 814 | int SSL_get_verify_mode(const SSL *s) |
ae5c8664 MC |
815 | { |
816 | return (s->verify_mode); | |
817 | } | |
d02b48c6 | 818 | |
0821bcd4 | 819 | int SSL_get_verify_depth(const SSL *s) |
ae5c8664 MC |
820 | { |
821 | return X509_VERIFY_PARAM_get_depth(s->param); | |
822 | } | |
7f89714e | 823 | |
ae5c8664 MC |
824 | int (*SSL_get_verify_callback(const SSL *s)) (int, X509_STORE_CTX *) { |
825 | return (s->verify_callback); | |
826 | } | |
d02b48c6 | 827 | |
0821bcd4 | 828 | int SSL_CTX_get_verify_mode(const SSL_CTX *ctx) |
ae5c8664 MC |
829 | { |
830 | return (ctx->verify_mode); | |
831 | } | |
d02b48c6 | 832 | |
0821bcd4 | 833 | int SSL_CTX_get_verify_depth(const SSL_CTX *ctx) |
ae5c8664 MC |
834 | { |
835 | return X509_VERIFY_PARAM_get_depth(ctx->param); | |
836 | } | |
837 | ||
838 | int (*SSL_CTX_get_verify_callback(const SSL_CTX *ctx)) (int, X509_STORE_CTX *) { | |
839 | return (ctx->default_verify_callback); | |
840 | } | |
841 | ||
842 | void SSL_set_verify(SSL *s, int mode, | |
843 | int (*callback) (int ok, X509_STORE_CTX *ctx)) | |
844 | { | |
845 | s->verify_mode = mode; | |
846 | if (callback != NULL) | |
847 | s->verify_callback = callback; | |
848 | } | |
849 | ||
850 | void SSL_set_verify_depth(SSL *s, int depth) | |
851 | { | |
852 | X509_VERIFY_PARAM_set_depth(s->param, depth); | |
853 | } | |
854 | ||
855 | void SSL_set_read_ahead(SSL *s, int yes) | |
856 | { | |
857 | s->read_ahead = yes; | |
858 | } | |
d02b48c6 | 859 | |
0821bcd4 | 860 | int SSL_get_read_ahead(const SSL *s) |
ae5c8664 MC |
861 | { |
862 | return (s->read_ahead); | |
863 | } | |
d02b48c6 | 864 | |
0821bcd4 | 865 | int SSL_pending(const SSL *s) |
ae5c8664 MC |
866 | { |
867 | /* | |
868 | * SSL_pending cannot work properly if read-ahead is enabled | |
869 | * (SSL_[CTX_]ctrl(..., SSL_CTRL_SET_READ_AHEAD, 1, NULL)), and it is | |
870 | * impossible to fix since SSL_pending cannot report errors that may be | |
871 | * observed while scanning the new data. (Note that SSL_pending() is | |
872 | * often used as a boolean value, so we'd better not return -1.) | |
873 | */ | |
874 | return (s->method->ssl_pending(s)); | |
875 | } | |
d02b48c6 | 876 | |
0821bcd4 | 877 | X509 *SSL_get_peer_certificate(const SSL *s) |
ae5c8664 MC |
878 | { |
879 | X509 *r; | |
880 | ||
881 | if ((s == NULL) || (s->session == NULL)) | |
882 | r = NULL; | |
883 | else | |
884 | r = s->session->peer; | |
d02b48c6 | 885 | |
ae5c8664 MC |
886 | if (r == NULL) |
887 | return (r); | |
d02b48c6 | 888 | |
ae5c8664 | 889 | CRYPTO_add(&r->references, 1, CRYPTO_LOCK_X509); |
d02b48c6 | 890 | |
ae5c8664 MC |
891 | return (r); |
892 | } | |
d02b48c6 | 893 | |
0821bcd4 | 894 | STACK_OF(X509) *SSL_get_peer_cert_chain(const SSL *s) |
ae5c8664 MC |
895 | { |
896 | STACK_OF(X509) *r; | |
897 | ||
898 | if ((s == NULL) || (s->session == NULL) | |
899 | || (s->session->sess_cert == NULL)) | |
900 | r = NULL; | |
901 | else | |
902 | r = s->session->sess_cert->cert_chain; | |
903 | ||
904 | /* | |
905 | * If we are a client, cert_chain includes the peer's own certificate; if | |
906 | * we are a server, it does not. | |
907 | */ | |
908 | ||
909 | return (r); | |
910 | } | |
911 | ||
912 | /* | |
913 | * Now in theory, since the calling process own 't' it should be safe to | |
914 | * modify. We need to be able to read f without being hassled | |
915 | */ | |
916 | void SSL_copy_session_id(SSL *t, const SSL *f) | |
917 | { | |
918 | CERT *tmp; | |
919 | ||
920 | /* Do we need to to SSL locking? */ | |
921 | SSL_set_session(t, SSL_get_session(f)); | |
922 | ||
923 | /* | |
924 | * what if we are setup as SSLv2 but want to talk SSLv3 or vice-versa | |
925 | */ | |
926 | if (t->method != f->method) { | |
927 | t->method->ssl_free(t); /* cleanup current */ | |
928 | t->method = f->method; /* change method */ | |
929 | t->method->ssl_new(t); /* setup new */ | |
930 | } | |
931 | ||
932 | tmp = t->cert; | |
933 | if (f->cert != NULL) { | |
934 | CRYPTO_add(&f->cert->references, 1, CRYPTO_LOCK_SSL_CERT); | |
935 | t->cert = f->cert; | |
936 | } else | |
937 | t->cert = NULL; | |
938 | if (tmp != NULL) | |
939 | ssl_cert_free(tmp); | |
940 | SSL_set_session_id_context(t, f->sid_ctx, f->sid_ctx_length); | |
941 | } | |
d02b48c6 | 942 | |
58964a49 | 943 | /* Fix this so it checks all the valid key/cert options */ |
0821bcd4 | 944 | int SSL_CTX_check_private_key(const SSL_CTX *ctx) |
ae5c8664 MC |
945 | { |
946 | if ((ctx == NULL) || | |
947 | (ctx->cert == NULL) || (ctx->cert->key->x509 == NULL)) { | |
948 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, | |
949 | SSL_R_NO_CERTIFICATE_ASSIGNED); | |
950 | return (0); | |
951 | } | |
952 | if (ctx->cert->key->privatekey == NULL) { | |
953 | SSLerr(SSL_F_SSL_CTX_CHECK_PRIVATE_KEY, | |
954 | SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
955 | return (0); | |
956 | } | |
957 | return (X509_check_private_key | |
958 | (ctx->cert->key->x509, ctx->cert->key->privatekey)); | |
959 | } | |
d02b48c6 | 960 | |
58964a49 | 961 | /* Fix this function so that it takes an optional type parameter */ |
0821bcd4 | 962 | int SSL_check_private_key(const SSL *ssl) |
ae5c8664 MC |
963 | { |
964 | if (ssl == NULL) { | |
965 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, ERR_R_PASSED_NULL_PARAMETER); | |
966 | return (0); | |
967 | } | |
968 | if (ssl->cert == NULL) { | |
969 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
970 | return 0; | |
971 | } | |
972 | if (ssl->cert->key->x509 == NULL) { | |
973 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_CERTIFICATE_ASSIGNED); | |
974 | return (0); | |
975 | } | |
976 | if (ssl->cert->key->privatekey == NULL) { | |
977 | SSLerr(SSL_F_SSL_CHECK_PRIVATE_KEY, SSL_R_NO_PRIVATE_KEY_ASSIGNED); | |
978 | return (0); | |
979 | } | |
980 | return (X509_check_private_key(ssl->cert->key->x509, | |
981 | ssl->cert->key->privatekey)); | |
982 | } | |
d02b48c6 | 983 | |
4f43d0e7 | 984 | int SSL_accept(SSL *s) |
ae5c8664 MC |
985 | { |
986 | if (s->handshake_func == 0) | |
987 | /* Not properly initialized yet */ | |
988 | SSL_set_accept_state(s); | |
b31b04d9 | 989 | |
ae5c8664 MC |
990 | return (s->method->ssl_accept(s)); |
991 | } | |
d02b48c6 | 992 | |
4f43d0e7 | 993 | int SSL_connect(SSL *s) |
ae5c8664 MC |
994 | { |
995 | if (s->handshake_func == 0) | |
996 | /* Not properly initialized yet */ | |
997 | SSL_set_connect_state(s); | |
b31b04d9 | 998 | |
ae5c8664 MC |
999 | return (s->method->ssl_connect(s)); |
1000 | } | |
d02b48c6 | 1001 | |
0821bcd4 | 1002 | long SSL_get_default_timeout(const SSL *s) |
ae5c8664 MC |
1003 | { |
1004 | return (s->method->get_timeout()); | |
1005 | } | |
1006 | ||
1007 | int SSL_read(SSL *s, void *buf, int num) | |
1008 | { | |
1009 | if (s->handshake_func == 0) { | |
1010 | SSLerr(SSL_F_SSL_READ, SSL_R_UNINITIALIZED); | |
1011 | return -1; | |
1012 | } | |
1013 | ||
1014 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1015 | s->rwstate = SSL_NOTHING; | |
1016 | return (0); | |
1017 | } | |
1018 | return (s->method->ssl_read(s, buf, num)); | |
1019 | } | |
1020 | ||
1021 | int SSL_peek(SSL *s, void *buf, int num) | |
1022 | { | |
1023 | if (s->handshake_func == 0) { | |
1024 | SSLerr(SSL_F_SSL_PEEK, SSL_R_UNINITIALIZED); | |
1025 | return -1; | |
1026 | } | |
1027 | ||
1028 | if (s->shutdown & SSL_RECEIVED_SHUTDOWN) { | |
1029 | return (0); | |
1030 | } | |
1031 | return (s->method->ssl_peek(s, buf, num)); | |
1032 | } | |
1033 | ||
1034 | int SSL_write(SSL *s, const void *buf, int num) | |
1035 | { | |
1036 | if (s->handshake_func == 0) { | |
1037 | SSLerr(SSL_F_SSL_WRITE, SSL_R_UNINITIALIZED); | |
1038 | return -1; | |
1039 | } | |
1040 | ||
1041 | if (s->shutdown & SSL_SENT_SHUTDOWN) { | |
1042 | s->rwstate = SSL_NOTHING; | |
1043 | SSLerr(SSL_F_SSL_WRITE, SSL_R_PROTOCOL_IS_SHUTDOWN); | |
1044 | return (-1); | |
1045 | } | |
1046 | return (s->method->ssl_write(s, buf, num)); | |
1047 | } | |
d02b48c6 | 1048 | |
4f43d0e7 | 1049 | int SSL_shutdown(SSL *s) |
ae5c8664 MC |
1050 | { |
1051 | /* | |
1052 | * Note that this function behaves differently from what one might | |
1053 | * expect. Return values are 0 for no success (yet), 1 for success; but | |
1054 | * calling it once is usually not enough, even if blocking I/O is used | |
1055 | * (see ssl3_shutdown). | |
1056 | */ | |
1057 | ||
1058 | if (s->handshake_func == 0) { | |
1059 | SSLerr(SSL_F_SSL_SHUTDOWN, SSL_R_UNINITIALIZED); | |
1060 | return -1; | |
1061 | } | |
1062 | ||
1063 | if ((s != NULL) && !SSL_in_init(s)) | |
1064 | return (s->method->ssl_shutdown(s)); | |
1065 | else | |
1066 | return (1); | |
1067 | } | |
d02b48c6 | 1068 | |
4f43d0e7 | 1069 | int SSL_renegotiate(SSL *s) |
ae5c8664 MC |
1070 | { |
1071 | if (s->renegotiate == 0) | |
1072 | s->renegotiate = 1; | |
c6dd154b | 1073 | |
ae5c8664 | 1074 | s->new_session = 1; |
c6dd154b | 1075 | |
ae5c8664 MC |
1076 | return (s->method->ssl_renegotiate(s)); |
1077 | } | |
d02b48c6 | 1078 | |
c6dd154b | 1079 | int SSL_renegotiate_abbreviated(SSL *s) |
ae5c8664 MC |
1080 | { |
1081 | if (s->renegotiate == 0) | |
1082 | s->renegotiate = 1; | |
3c3f0259 | 1083 | |
ae5c8664 | 1084 | s->new_session = 0; |
3c3f0259 | 1085 | |
ae5c8664 MC |
1086 | return (s->method->ssl_renegotiate(s)); |
1087 | } | |
c6dd154b | 1088 | |
6b0e9fac | 1089 | int SSL_renegotiate_pending(SSL *s) |
ae5c8664 MC |
1090 | { |
1091 | /* | |
1092 | * becomes true when negotiation is requested; false again once a | |
1093 | * handshake has finished | |
1094 | */ | |
1095 | return (s->renegotiate != 0); | |
1096 | } | |
1097 | ||
1098 | long SSL_ctrl(SSL *s, int cmd, long larg, void *parg) | |
1099 | { | |
1100 | long l; | |
1101 | ||
1102 | switch (cmd) { | |
1103 | case SSL_CTRL_GET_READ_AHEAD: | |
1104 | return (s->read_ahead); | |
1105 | case SSL_CTRL_SET_READ_AHEAD: | |
1106 | l = s->read_ahead; | |
1107 | s->read_ahead = larg; | |
1108 | return (l); | |
1109 | ||
1110 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1111 | s->msg_callback_arg = parg; | |
1112 | return 1; | |
1113 | ||
1114 | case SSL_CTRL_OPTIONS: | |
1115 | return (s->options |= larg); | |
1116 | case SSL_CTRL_CLEAR_OPTIONS: | |
1117 | return (s->options &= ~larg); | |
1118 | case SSL_CTRL_MODE: | |
1119 | return (s->mode |= larg); | |
1120 | case SSL_CTRL_CLEAR_MODE: | |
1121 | return (s->mode &= ~larg); | |
1122 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
1123 | return (s->max_cert_list); | |
1124 | case SSL_CTRL_SET_MAX_CERT_LIST: | |
1125 | l = s->max_cert_list; | |
1126 | s->max_cert_list = larg; | |
1127 | return (l); | |
1128 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
1129 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1130 | return 0; | |
1131 | s->max_send_fragment = larg; | |
1132 | return 1; | |
1133 | case SSL_CTRL_GET_RI_SUPPORT: | |
1134 | if (s->s3) | |
1135 | return s->s3->send_connection_binding; | |
1136 | else | |
1137 | return 0; | |
1138 | case SSL_CTRL_CERT_FLAGS: | |
1139 | return (s->cert->cert_flags |= larg); | |
1140 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
1141 | return (s->cert->cert_flags &= ~larg); | |
1142 | ||
1143 | case SSL_CTRL_GET_RAW_CIPHERLIST: | |
1144 | if (parg) { | |
1145 | if (s->cert->ciphers_raw == NULL) | |
1146 | return 0; | |
1147 | *(unsigned char **)parg = s->cert->ciphers_raw; | |
1148 | return (int)s->cert->ciphers_rawlen; | |
1149 | } else | |
1150 | return ssl_put_cipher_by_char(s, NULL, NULL); | |
1151 | default: | |
1152 | return (s->method->ssl_ctrl(s, cmd, larg, parg)); | |
1153 | } | |
1154 | } | |
1155 | ||
1156 | long SSL_callback_ctrl(SSL *s, int cmd, void (*fp) (void)) | |
1157 | { | |
1158 | switch (cmd) { | |
1159 | case SSL_CTRL_SET_MSG_CALLBACK: | |
1160 | s->msg_callback = (void (*) | |
1161 | (int write_p, int version, int content_type, | |
1162 | const void *buf, size_t len, SSL *ssl, | |
1163 | void *arg))(fp); | |
1164 | return 1; | |
1165 | ||
1166 | default: | |
1167 | return (s->method->ssl_callback_ctrl(s, cmd, fp)); | |
1168 | } | |
1169 | } | |
d3442bc7 | 1170 | |
3c1d6bbc | 1171 | LHASH_OF(SSL_SESSION) *SSL_CTX_sessions(SSL_CTX *ctx) |
ae5c8664 MC |
1172 | { |
1173 | return ctx->sessions; | |
1174 | } | |
1175 | ||
1176 | long SSL_CTX_ctrl(SSL_CTX *ctx, int cmd, long larg, void *parg) | |
1177 | { | |
1178 | long l; | |
1179 | /* For some cases with ctx == NULL perform syntax checks */ | |
1180 | if (ctx == NULL) { | |
1181 | switch (cmd) { | |
5b430cfc | 1182 | #ifndef OPENSSL_NO_EC |
ae5c8664 MC |
1183 | case SSL_CTRL_SET_CURVES_LIST: |
1184 | return tls1_set_curves_list(NULL, NULL, parg); | |
1185 | #endif | |
1186 | case SSL_CTRL_SET_SIGALGS_LIST: | |
1187 | case SSL_CTRL_SET_CLIENT_SIGALGS_LIST: | |
1188 | return tls1_set_sigalgs_list(NULL, parg, 0); | |
1189 | default: | |
1190 | return 0; | |
1191 | } | |
1192 | } | |
1193 | ||
1194 | switch (cmd) { | |
1195 | case SSL_CTRL_GET_READ_AHEAD: | |
1196 | return (ctx->read_ahead); | |
1197 | case SSL_CTRL_SET_READ_AHEAD: | |
1198 | l = ctx->read_ahead; | |
1199 | ctx->read_ahead = larg; | |
1200 | return (l); | |
1201 | ||
1202 | case SSL_CTRL_SET_MSG_CALLBACK_ARG: | |
1203 | ctx->msg_callback_arg = parg; | |
1204 | return 1; | |
1205 | ||
1206 | case SSL_CTRL_GET_MAX_CERT_LIST: | |
1207 | return (ctx->max_cert_list); | |
1208 | case SSL_CTRL_SET_MAX_CERT_LIST: | |
1209 | l = ctx->max_cert_list; | |
1210 | ctx->max_cert_list = larg; | |
1211 | return (l); | |
1212 | ||
1213 | case SSL_CTRL_SET_SESS_CACHE_SIZE: | |
1214 | l = ctx->session_cache_size; | |
1215 | ctx->session_cache_size = larg; | |
1216 | return (l); | |
1217 | case SSL_CTRL_GET_SESS_CACHE_SIZE: | |
1218 | return (ctx->session_cache_size); | |
1219 | case SSL_CTRL_SET_SESS_CACHE_MODE: | |
1220 | l = ctx->session_cache_mode; | |
1221 | ctx->session_cache_mode = larg; | |
1222 | return (l); | |
1223 | case SSL_CTRL_GET_SESS_CACHE_MODE: | |
1224 | return (ctx->session_cache_mode); | |
1225 | ||
1226 | case SSL_CTRL_SESS_NUMBER: | |
1227 | return (lh_SSL_SESSION_num_items(ctx->sessions)); | |
1228 | case SSL_CTRL_SESS_CONNECT: | |
1229 | return (ctx->stats.sess_connect); | |
1230 | case SSL_CTRL_SESS_CONNECT_GOOD: | |
1231 | return (ctx->stats.sess_connect_good); | |
1232 | case SSL_CTRL_SESS_CONNECT_RENEGOTIATE: | |
1233 | return (ctx->stats.sess_connect_renegotiate); | |
1234 | case SSL_CTRL_SESS_ACCEPT: | |
1235 | return (ctx->stats.sess_accept); | |
1236 | case SSL_CTRL_SESS_ACCEPT_GOOD: | |
1237 | return (ctx->stats.sess_accept_good); | |
1238 | case SSL_CTRL_SESS_ACCEPT_RENEGOTIATE: | |
1239 | return (ctx->stats.sess_accept_renegotiate); | |
1240 | case SSL_CTRL_SESS_HIT: | |
1241 | return (ctx->stats.sess_hit); | |
1242 | case SSL_CTRL_SESS_CB_HIT: | |
1243 | return (ctx->stats.sess_cb_hit); | |
1244 | case SSL_CTRL_SESS_MISSES: | |
1245 | return (ctx->stats.sess_miss); | |
1246 | case SSL_CTRL_SESS_TIMEOUTS: | |
1247 | return (ctx->stats.sess_timeout); | |
1248 | case SSL_CTRL_SESS_CACHE_FULL: | |
1249 | return (ctx->stats.sess_cache_full); | |
1250 | case SSL_CTRL_OPTIONS: | |
1251 | return (ctx->options |= larg); | |
1252 | case SSL_CTRL_CLEAR_OPTIONS: | |
1253 | return (ctx->options &= ~larg); | |
1254 | case SSL_CTRL_MODE: | |
1255 | return (ctx->mode |= larg); | |
1256 | case SSL_CTRL_CLEAR_MODE: | |
1257 | return (ctx->mode &= ~larg); | |
1258 | case SSL_CTRL_SET_MAX_SEND_FRAGMENT: | |
1259 | if (larg < 512 || larg > SSL3_RT_MAX_PLAIN_LENGTH) | |
1260 | return 0; | |
1261 | ctx->max_send_fragment = larg; | |
1262 | return 1; | |
1263 | case SSL_CTRL_CERT_FLAGS: | |
1264 | return (ctx->cert->cert_flags |= larg); | |
1265 | case SSL_CTRL_CLEAR_CERT_FLAGS: | |
1266 | return (ctx->cert->cert_flags &= ~larg); | |
1267 | default: | |
1268 | return (ctx->method->ssl_ctx_ctrl(ctx, cmd, larg, parg)); | |
1269 | } | |
1270 | } | |
1271 | ||
1272 | long SSL_CTX_callback_ctrl(SSL_CTX *ctx, int cmd, void (*fp) (void)) | |
1273 | { | |
1274 | switch (cmd) { | |
1275 | case SSL_CTRL_SET_MSG_CALLBACK: | |
1276 | ctx->msg_callback = (void (*) | |
1277 | (int write_p, int version, int content_type, | |
1278 | const void *buf, size_t len, SSL *ssl, | |
1279 | void *arg))(fp); | |
1280 | return 1; | |
1281 | ||
1282 | default: | |
1283 | return (ctx->method->ssl_ctx_callback_ctrl(ctx, cmd, fp)); | |
1284 | } | |
1285 | } | |
d3442bc7 | 1286 | |
ccd86b68 | 1287 | int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b) |
ae5c8664 MC |
1288 | { |
1289 | long l; | |
1290 | ||
1291 | l = a->id - b->id; | |
1292 | if (l == 0L) | |
1293 | return (0); | |
1294 | else | |
1295 | return ((l > 0) ? 1 : -1); | |
1296 | } | |
1297 | ||
1298 | int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
1299 | const SSL_CIPHER *const *bp) | |
1300 | { | |
1301 | long l; | |
1302 | ||
1303 | l = (*ap)->id - (*bp)->id; | |
1304 | if (l == 0L) | |
1305 | return (0); | |
1306 | else | |
1307 | return ((l > 0) ? 1 : -1); | |
1308 | } | |
d02b48c6 | 1309 | |
4f43d0e7 | 1310 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 1311 | * preference */ |
0821bcd4 | 1312 | STACK_OF(SSL_CIPHER) *SSL_get_ciphers(const SSL *s) |
ae5c8664 MC |
1313 | { |
1314 | if (s != NULL) { | |
1315 | if (s->cipher_list != NULL) { | |
1316 | return (s->cipher_list); | |
1317 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list != NULL)) { | |
1318 | return (s->ctx->cipher_list); | |
1319 | } | |
1320 | } | |
1321 | return (NULL); | |
1322 | } | |
d02b48c6 | 1323 | |
4f43d0e7 | 1324 | /** return a STACK of the ciphers available for the SSL and in order of |
d02b48c6 | 1325 | * algorithm id */ |
f73e07cf | 1326 | STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s) |
ae5c8664 MC |
1327 | { |
1328 | if (s != NULL) { | |
1329 | if (s->cipher_list_by_id != NULL) { | |
1330 | return (s->cipher_list_by_id); | |
1331 | } else if ((s->ctx != NULL) && (s->ctx->cipher_list_by_id != NULL)) { | |
1332 | return (s->ctx->cipher_list_by_id); | |
1333 | } | |
1334 | } | |
1335 | return (NULL); | |
1336 | } | |
d02b48c6 | 1337 | |
4f43d0e7 | 1338 | /** The old interface to get the same thing as SSL_get_ciphers() */ |
ae5c8664 MC |
1339 | const char *SSL_get_cipher_list(const SSL *s, int n) |
1340 | { | |
1341 | SSL_CIPHER *c; | |
1342 | STACK_OF(SSL_CIPHER) *sk; | |
1343 | ||
1344 | if (s == NULL) | |
1345 | return (NULL); | |
1346 | sk = SSL_get_ciphers(s); | |
1347 | if ((sk == NULL) || (sk_SSL_CIPHER_num(sk) <= n)) | |
1348 | return (NULL); | |
1349 | c = sk_SSL_CIPHER_value(sk, n); | |
1350 | if (c == NULL) | |
1351 | return (NULL); | |
1352 | return (c->name); | |
1353 | } | |
d02b48c6 | 1354 | |
25f923dd | 1355 | /** specify the ciphers to be used by default by the SSL_CTX */ |
018e57c7 | 1356 | int SSL_CTX_set_cipher_list(SSL_CTX *ctx, const char *str) |
ae5c8664 MC |
1357 | { |
1358 | STACK_OF(SSL_CIPHER) *sk; | |
1359 | ||
1360 | sk = ssl_create_cipher_list(ctx->method, &ctx->cipher_list, | |
1361 | &ctx->cipher_list_by_id, str, ctx->cert); | |
1362 | /* | |
1363 | * ssl_create_cipher_list may return an empty stack if it was unable to | |
1364 | * find a cipher matching the given rule string (for example if the rule | |
1365 | * string specifies a cipher which has been disabled). This is not an | |
1366 | * error as far as ssl_create_cipher_list is concerned, and hence | |
1367 | * ctx->cipher_list and ctx->cipher_list_by_id has been updated. | |
1368 | */ | |
1369 | if (sk == NULL) | |
1370 | return 0; | |
1371 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
1372 | SSLerr(SSL_F_SSL_CTX_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
1373 | return 0; | |
1374 | } | |
1375 | return 1; | |
1376 | } | |
d02b48c6 | 1377 | |
4f43d0e7 | 1378 | /** specify the ciphers to be used by the SSL */ |
ae5c8664 MC |
1379 | int SSL_set_cipher_list(SSL *s, const char *str) |
1380 | { | |
1381 | STACK_OF(SSL_CIPHER) *sk; | |
1382 | ||
1383 | sk = ssl_create_cipher_list(s->ctx->method, &s->cipher_list, | |
1384 | &s->cipher_list_by_id, str, s->cert); | |
1385 | /* see comment in SSL_CTX_set_cipher_list */ | |
1386 | if (sk == NULL) | |
1387 | return 0; | |
1388 | else if (sk_SSL_CIPHER_num(sk) == 0) { | |
1389 | SSLerr(SSL_F_SSL_SET_CIPHER_LIST, SSL_R_NO_CIPHER_MATCH); | |
1390 | return 0; | |
1391 | } | |
1392 | return 1; | |
1393 | } | |
d02b48c6 RE |
1394 | |
1395 | /* works well for SSLv2, not so good for SSLv3 */ | |
ae5c8664 MC |
1396 | char *SSL_get_shared_ciphers(const SSL *s, char *buf, int len) |
1397 | { | |
1398 | char *p; | |
1399 | STACK_OF(SSL_CIPHER) *sk; | |
1400 | SSL_CIPHER *c; | |
1401 | int i; | |
1402 | ||
1403 | if ((s->session == NULL) || (s->session->ciphers == NULL) || (len < 2)) | |
1404 | return (NULL); | |
1405 | ||
1406 | p = buf; | |
1407 | sk = s->session->ciphers; | |
1408 | ||
1409 | if (sk_SSL_CIPHER_num(sk) == 0) | |
1410 | return NULL; | |
1411 | ||
1412 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { | |
1413 | int n; | |
1414 | ||
1415 | c = sk_SSL_CIPHER_value(sk, i); | |
1416 | n = strlen(c->name); | |
1417 | if (n + 1 > len) { | |
1418 | if (p != buf) | |
1419 | --p; | |
1420 | *p = '\0'; | |
1421 | return buf; | |
1422 | } | |
1423 | strcpy(p, c->name); | |
1424 | p += n; | |
1425 | *(p++) = ':'; | |
1426 | len -= n + 1; | |
1427 | } | |
1428 | p[-1] = '\0'; | |
1429 | return (buf); | |
1430 | } | |
1431 | ||
1432 | int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk, | |
1433 | unsigned char *p, | |
1434 | int (*put_cb) (const SSL_CIPHER *, | |
1435 | unsigned char *)) | |
1436 | { | |
1437 | int i, j = 0; | |
1438 | SSL_CIPHER *c; | |
1439 | CERT *ct = s->cert; | |
1440 | unsigned char *q; | |
1441 | int empty_reneg_info_scsv = !s->renegotiate; | |
1442 | /* Set disabled masks for this session */ | |
1443 | ssl_set_client_disabled(s); | |
1444 | ||
1445 | if (sk == NULL) | |
1446 | return (0); | |
1447 | q = p; | |
1448 | if (put_cb == NULL) | |
1449 | put_cb = s->method->put_cipher_by_char; | |
1450 | ||
1451 | for (i = 0; i < sk_SSL_CIPHER_num(sk); i++) { | |
1452 | c = sk_SSL_CIPHER_value(sk, i); | |
1453 | /* Skip disabled ciphers */ | |
1454 | if (c->algorithm_ssl & ct->mask_ssl || | |
1455 | c->algorithm_mkey & ct->mask_k || c->algorithm_auth & ct->mask_a) | |
1456 | continue; | |
50b5966e | 1457 | #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL |
ae5c8664 MC |
1458 | if (c->id == SSL3_CK_SCSV) { |
1459 | if (!empty_reneg_info_scsv) | |
1460 | continue; | |
1461 | else | |
1462 | empty_reneg_info_scsv = 0; | |
1463 | } | |
1464 | #endif | |
1465 | j = put_cb(c, p); | |
1466 | p += j; | |
1467 | } | |
1468 | /* | |
1469 | * If p == q, no ciphers; caller indicates an error. Otherwise, add | |
1470 | * applicable SCSVs. | |
1471 | */ | |
1472 | if (p != q) { | |
1473 | if (empty_reneg_info_scsv) { | |
1474 | static SSL_CIPHER scsv = { | |
1475 | 0, NULL, SSL3_CK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0 | |
1476 | }; | |
1477 | j = put_cb(&scsv, p); | |
1478 | p += j; | |
10f99d7b | 1479 | #ifdef OPENSSL_RI_DEBUG |
ae5c8664 MC |
1480 | fprintf(stderr, |
1481 | "TLS_EMPTY_RENEGOTIATION_INFO_SCSV sent by client\n"); | |
1482 | #endif | |
1483 | } | |
1484 | if (s->mode & SSL_MODE_SEND_FALLBACK_SCSV) { | |
1485 | static SSL_CIPHER scsv = { | |
1486 | 0, NULL, SSL3_CK_FALLBACK_SCSV, 0, 0, 0, 0, 0, 0, 0, 0, 0 | |
1487 | }; | |
1488 | j = put_cb(&scsv, p); | |
1489 | p += j; | |
1490 | } | |
1491 | } | |
1492 | ||
1493 | return (p - q); | |
1494 | } | |
1495 | ||
1496 | STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s, unsigned char *p, | |
1497 | int num, | |
1498 | STACK_OF(SSL_CIPHER) **skp) | |
1499 | { | |
1500 | const SSL_CIPHER *c; | |
1501 | STACK_OF(SSL_CIPHER) *sk; | |
1502 | int i, n; | |
1503 | ||
1504 | if (s->s3) | |
1505 | s->s3->send_connection_binding = 0; | |
1506 | ||
1507 | n = ssl_put_cipher_by_char(s, NULL, NULL); | |
1508 | if (n == 0 || (num % n) != 0) { | |
1509 | SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, | |
1510 | SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST); | |
1511 | return (NULL); | |
1512 | } | |
edc2a76a | 1513 | if ((skp == NULL) || (*skp == NULL)) { |
ae5c8664 | 1514 | sk = sk_SSL_CIPHER_new_null(); /* change perhaps later */ |
edc2a76a MC |
1515 | if(sk == NULL) { |
1516 | SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
1517 | return NULL; | |
1518 | } | |
1519 | } else { | |
ae5c8664 MC |
1520 | sk = *skp; |
1521 | sk_SSL_CIPHER_zero(sk); | |
1522 | } | |
1523 | ||
1524 | if (s->cert->ciphers_raw) | |
1525 | OPENSSL_free(s->cert->ciphers_raw); | |
1526 | s->cert->ciphers_raw = BUF_memdup(p, num); | |
1527 | if (s->cert->ciphers_raw == NULL) { | |
1528 | SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
1529 | goto err; | |
1530 | } | |
1531 | s->cert->ciphers_rawlen = (size_t)num; | |
1532 | ||
1533 | for (i = 0; i < num; i += n) { | |
1534 | /* Check for TLS_EMPTY_RENEGOTIATION_INFO_SCSV */ | |
1535 | if (s->s3 && (n != 3 || !p[0]) && | |
1536 | (p[n - 2] == ((SSL3_CK_SCSV >> 8) & 0xff)) && | |
1537 | (p[n - 1] == (SSL3_CK_SCSV & 0xff))) { | |
1538 | /* SCSV fatal if renegotiating */ | |
1539 | if (s->renegotiate) { | |
1540 | SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, | |
1541 | SSL_R_SCSV_RECEIVED_WHEN_RENEGOTIATING); | |
1542 | ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE); | |
1543 | goto err; | |
1544 | } | |
1545 | s->s3->send_connection_binding = 1; | |
1546 | p += n; | |
10f99d7b | 1547 | #ifdef OPENSSL_RI_DEBUG |
ae5c8664 MC |
1548 | fprintf(stderr, "SCSV received by server\n"); |
1549 | #endif | |
1550 | continue; | |
1551 | } | |
1552 | ||
1553 | /* Check for TLS_FALLBACK_SCSV */ | |
1554 | if ((n != 3 || !p[0]) && | |
1555 | (p[n - 2] == ((SSL3_CK_FALLBACK_SCSV >> 8) & 0xff)) && | |
1556 | (p[n - 1] == (SSL3_CK_FALLBACK_SCSV & 0xff))) { | |
1557 | /* | |
1558 | * The SCSV indicates that the client previously tried a higher | |
1559 | * version. Fail if the current version is an unexpected | |
1560 | * downgrade. | |
1561 | */ | |
1562 | if (!SSL_ctrl(s, SSL_CTRL_CHECK_PROTO_VERSION, 0, NULL)) { | |
1563 | SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, | |
1564 | SSL_R_INAPPROPRIATE_FALLBACK); | |
1565 | if (s->s3) | |
1566 | ssl3_send_alert(s, SSL3_AL_FATAL, | |
1567 | SSL_AD_INAPPROPRIATE_FALLBACK); | |
1568 | goto err; | |
1569 | } | |
1570 | p += n; | |
1571 | continue; | |
1572 | } | |
1573 | ||
1574 | c = ssl_get_cipher_by_char(s, p); | |
1575 | p += n; | |
1576 | if (c != NULL) { | |
1577 | if (!sk_SSL_CIPHER_push(sk, c)) { | |
1578 | SSLerr(SSL_F_SSL_BYTES_TO_CIPHER_LIST, ERR_R_MALLOC_FAILURE); | |
1579 | goto err; | |
1580 | } | |
1581 | } | |
1582 | } | |
d02b48c6 | 1583 | |
ae5c8664 MC |
1584 | if (skp != NULL) |
1585 | *skp = sk; | |
1586 | return (sk); | |
1587 | err: | |
1588 | if ((skp == NULL) || (*skp == NULL)) | |
1589 | sk_SSL_CIPHER_free(sk); | |
1590 | return (NULL); | |
1591 | } | |
f1fd4544 | 1592 | |
34449617 | 1593 | #ifndef OPENSSL_NO_TLSEXT |
52b8dad8 | 1594 | /** return a servername extension value if provided in Client Hello, or NULL. |
f1fd4544 | 1595 | * So far, only host_name types are defined (RFC 3546). |
ed3883d2 BM |
1596 | */ |
1597 | ||
f1fd4544 | 1598 | const char *SSL_get_servername(const SSL *s, const int type) |
ae5c8664 MC |
1599 | { |
1600 | if (type != TLSEXT_NAMETYPE_host_name) | |
1601 | return NULL; | |
a13c20f6 | 1602 | |
ae5c8664 MC |
1603 | return s->session && !s->tlsext_hostname ? |
1604 | s->session->tlsext_hostname : s->tlsext_hostname; | |
1605 | } | |
ed3883d2 | 1606 | |
f1fd4544 | 1607 | int SSL_get_servername_type(const SSL *s) |
ae5c8664 MC |
1608 | { |
1609 | if (s->session | |
1610 | && (!s->tlsext_hostname ? s->session-> | |
1611 | tlsext_hostname : s->tlsext_hostname)) | |
1612 | return TLSEXT_NAMETYPE_host_name; | |
1613 | return -1; | |
1614 | } | |
68b33cc5 | 1615 | |
ae5c8664 MC |
1616 | /* |
1617 | * SSL_select_next_proto implements the standard protocol selection. It is | |
68b33cc5 | 1618 | * expected that this function is called from the callback set by |
ae5c8664 MC |
1619 | * SSL_CTX_set_next_proto_select_cb. The protocol data is assumed to be a |
1620 | * vector of 8-bit, length prefixed byte strings. The length byte itself is | |
1621 | * not included in the length. A byte string of length 0 is invalid. No byte | |
1622 | * string may be truncated. The current, but experimental algorithm for | |
1623 | * selecting the protocol is: 1) If the server doesn't support NPN then this | |
1624 | * is indicated to the callback. In this case, the client application has to | |
1625 | * abort the connection or have a default application level protocol. 2) If | |
1626 | * the server supports NPN, but advertises an empty list then the client | |
1627 | * selects the first protcol in its list, but indicates via the API that this | |
1628 | * fallback case was enacted. 3) Otherwise, the client finds the first | |
1629 | * protocol in the server's list that it supports and selects this protocol. | |
1630 | * This is because it's assumed that the server has better information about | |
1631 | * which protocol a client should use. 4) If the client doesn't support any | |
1632 | * of the server's advertised protocols, then this is treated the same as | |
1633 | * case 2. It returns either OPENSSL_NPN_NEGOTIATED if a common protocol was | |
1634 | * found, or OPENSSL_NPN_NO_OVERLAP if the fallback case was reached. | |
68b33cc5 | 1635 | */ |
ae5c8664 MC |
1636 | int SSL_select_next_proto(unsigned char **out, unsigned char *outlen, |
1637 | const unsigned char *server, | |
1638 | unsigned int server_len, | |
1639 | const unsigned char *client, | |
1640 | unsigned int client_len) | |
1641 | { | |
1642 | unsigned int i, j; | |
1643 | const unsigned char *result; | |
1644 | int status = OPENSSL_NPN_UNSUPPORTED; | |
1645 | ||
1646 | /* | |
1647 | * For each protocol in server preference order, see if we support it. | |
1648 | */ | |
1649 | for (i = 0; i < server_len;) { | |
1650 | for (j = 0; j < client_len;) { | |
1651 | if (server[i] == client[j] && | |
1652 | memcmp(&server[i + 1], &client[j + 1], server[i]) == 0) { | |
1653 | /* We found a match */ | |
1654 | result = &server[i]; | |
1655 | status = OPENSSL_NPN_NEGOTIATED; | |
1656 | goto found; | |
1657 | } | |
1658 | j += client[j]; | |
1659 | j++; | |
1660 | } | |
1661 | i += server[i]; | |
1662 | i++; | |
1663 | } | |
1664 | ||
1665 | /* There's no overlap between our protocols and the server's list. */ | |
1666 | result = client; | |
1667 | status = OPENSSL_NPN_NO_OVERLAP; | |
1668 | ||
1669 | found: | |
1670 | *out = (unsigned char *)result + 1; | |
1671 | *outlen = result[0]; | |
1672 | return status; | |
1673 | } | |
68b33cc5 | 1674 | |
edc687ba | 1675 | # ifndef OPENSSL_NO_NEXTPROTONEG |
ae5c8664 MC |
1676 | /* |
1677 | * SSL_get0_next_proto_negotiated sets *data and *len to point to the | |
1678 | * client's requested protocol for this connection and returns 0. If the | |
1679 | * client didn't request any protocol, then *data is set to NULL. Note that | |
1680 | * the client can request any protocol it chooses. The value returned from | |
1681 | * this function need not be a member of the list of supported protocols | |
68b33cc5 BL |
1682 | * provided by the callback. |
1683 | */ | |
ae5c8664 MC |
1684 | void SSL_get0_next_proto_negotiated(const SSL *s, const unsigned char **data, |
1685 | unsigned *len) | |
1686 | { | |
1687 | *data = s->next_proto_negotiated; | |
1688 | if (!*data) { | |
1689 | *len = 0; | |
1690 | } else { | |
1691 | *len = s->next_proto_negotiated_len; | |
1692 | } | |
1693 | } | |
1694 | ||
1695 | /* | |
1696 | * SSL_CTX_set_next_protos_advertised_cb sets a callback that is called when | |
1697 | * a TLS server needs a list of supported protocols for Next Protocol | |
1698 | * Negotiation. The returned list must be in wire format. The list is | |
1699 | * returned by setting |out| to point to it and |outlen| to its length. This | |
1700 | * memory will not be modified, but one should assume that the SSL* keeps a | |
1701 | * reference to it. The callback should return SSL_TLSEXT_ERR_OK if it | |
1702 | * wishes to advertise. Otherwise, no such extension will be included in the | |
1703 | * ServerHello. | |
1704 | */ | |
1705 | void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *ctx, | |
1706 | int (*cb) (SSL *ssl, | |
1707 | const unsigned char | |
1708 | **out, | |
1709 | unsigned int *outlen, | |
1710 | void *arg), void *arg) | |
1711 | { | |
1712 | ctx->next_protos_advertised_cb = cb; | |
1713 | ctx->next_protos_advertised_cb_arg = arg; | |
1714 | } | |
1715 | ||
1716 | /* | |
1717 | * SSL_CTX_set_next_proto_select_cb sets a callback that is called when a | |
68b33cc5 BL |
1718 | * client needs to select a protocol from the server's provided list. |out| |
1719 | * must be set to point to the selected protocol (which may be within |in|). | |
ae5c8664 MC |
1720 | * The length of the protocol name must be written into |outlen|. The |
1721 | * server's advertised protocols are provided in |in| and |inlen|. The | |
1722 | * callback can assume that |in| is syntactically valid. The client must | |
1723 | * select a protocol. It is fatal to the connection if this callback returns | |
1724 | * a value other than SSL_TLSEXT_ERR_OK. | |
68b33cc5 | 1725 | */ |
ae5c8664 MC |
1726 | void SSL_CTX_set_next_proto_select_cb(SSL_CTX *ctx, |
1727 | int (*cb) (SSL *s, unsigned char **out, | |
1728 | unsigned char *outlen, | |
1729 | const unsigned char *in, | |
1730 | unsigned int inlen, | |
1731 | void *arg), void *arg) | |
1732 | { | |
1733 | ctx->next_proto_select_cb = cb; | |
1734 | ctx->next_proto_select_cb_arg = arg; | |
1735 | } | |
68b33cc5 | 1736 | # endif |
e27711cf | 1737 | |
ae5c8664 MC |
1738 | /* |
1739 | * SSL_CTX_set_alpn_protos sets the ALPN protocol list on |ctx| to |protos|. | |
b0d6f3c5 | 1740 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
ae5c8664 MC |
1741 | * length-prefixed strings). Returns 0 on success. |
1742 | */ | |
1743 | int SSL_CTX_set_alpn_protos(SSL_CTX *ctx, const unsigned char *protos, | |
1744 | unsigned protos_len) | |
1745 | { | |
1746 | if (ctx->alpn_client_proto_list) | |
1747 | OPENSSL_free(ctx->alpn_client_proto_list); | |
1748 | ||
1749 | ctx->alpn_client_proto_list = OPENSSL_malloc(protos_len); | |
1750 | if (!ctx->alpn_client_proto_list) | |
1751 | return 1; | |
1752 | memcpy(ctx->alpn_client_proto_list, protos, protos_len); | |
1753 | ctx->alpn_client_proto_list_len = protos_len; | |
1754 | ||
1755 | return 0; | |
1756 | } | |
1757 | ||
1758 | /* | |
1759 | * SSL_set_alpn_protos sets the ALPN protocol list on |ssl| to |protos|. | |
b0d6f3c5 | 1760 | * |protos| must be in wire-format (i.e. a series of non-empty, 8-bit |
ae5c8664 MC |
1761 | * length-prefixed strings). Returns 0 on success. |
1762 | */ | |
1763 | int SSL_set_alpn_protos(SSL *ssl, const unsigned char *protos, | |
1764 | unsigned protos_len) | |
1765 | { | |
1766 | if (ssl->alpn_client_proto_list) | |
1767 | OPENSSL_free(ssl->alpn_client_proto_list); | |
1768 | ||
1769 | ssl->alpn_client_proto_list = OPENSSL_malloc(protos_len); | |
1770 | if (!ssl->alpn_client_proto_list) | |
1771 | return 1; | |
1772 | memcpy(ssl->alpn_client_proto_list, protos, protos_len); | |
1773 | ssl->alpn_client_proto_list_len = protos_len; | |
1774 | ||
1775 | return 0; | |
1776 | } | |
1777 | ||
1778 | /* | |
1779 | * SSL_CTX_set_alpn_select_cb sets a callback function on |ctx| that is | |
1780 | * called during ClientHello processing in order to select an ALPN protocol | |
1781 | * from the client's list of offered protocols. | |
1782 | */ | |
1783 | void SSL_CTX_set_alpn_select_cb(SSL_CTX *ctx, | |
1784 | int (*cb) (SSL *ssl, | |
1785 | const unsigned char **out, | |
1786 | unsigned char *outlen, | |
1787 | const unsigned char *in, | |
1788 | unsigned int inlen, | |
1789 | void *arg), void *arg) | |
1790 | { | |
1791 | ctx->alpn_select_cb = cb; | |
1792 | ctx->alpn_select_cb_arg = arg; | |
1793 | } | |
1794 | ||
1795 | /* | |
1796 | * SSL_get0_alpn_selected gets the selected ALPN protocol (if any) from | |
1797 | * |ssl|. On return it sets |*data| to point to |*len| bytes of protocol name | |
1798 | * (not including the leading length-prefix byte). If the server didn't | |
1799 | * respond with a negotiated protocol then |*len| will be zero. | |
1800 | */ | |
b0d6f3c5 | 1801 | void SSL_get0_alpn_selected(const SSL *ssl, const unsigned char **data, |
ae5c8664 MC |
1802 | unsigned *len) |
1803 | { | |
1804 | *data = NULL; | |
1805 | if (ssl->s3) | |
1806 | *data = ssl->s3->alpn_selected; | |
1807 | if (*data == NULL) | |
1808 | *len = 0; | |
1809 | else | |
1810 | *len = ssl->s3->alpn_selected_len; | |
1811 | } | |
1812 | ||
1813 | #endif /* !OPENSSL_NO_TLSEXT */ | |
f1fd4544 | 1814 | |
e87afb15 | 1815 | int SSL_export_keying_material(SSL *s, unsigned char *out, size_t olen, |
ae5c8664 MC |
1816 | const char *label, size_t llen, |
1817 | const unsigned char *p, size_t plen, | |
1818 | int use_context) | |
1819 | { | |
1820 | if (s->version < TLS1_VERSION) | |
1821 | return -1; | |
b1d74291 | 1822 | |
ae5c8664 MC |
1823 | return s->method->ssl3_enc->export_keying_material(s, out, olen, label, |
1824 | llen, p, plen, | |
1825 | use_context); | |
1826 | } | |
b1d74291 | 1827 | |
3c1d6bbc | 1828 | static unsigned long ssl_session_hash(const SSL_SESSION *a) |
ae5c8664 MC |
1829 | { |
1830 | unsigned long l; | |
1831 | ||
1832 | l = (unsigned long) | |
1833 | ((unsigned int)a->session_id[0]) | | |
1834 | ((unsigned int)a->session_id[1] << 8L) | | |
1835 | ((unsigned long)a->session_id[2] << 16L) | | |
1836 | ((unsigned long)a->session_id[3] << 24L); | |
1837 | return (l); | |
1838 | } | |
1839 | ||
1840 | /* | |
1841 | * NB: If this function (or indeed the hash function which uses a sort of | |
dc644fe2 | 1842 | * coarser function than this one) is changed, ensure |
ae5c8664 MC |
1843 | * SSL_CTX_has_matching_session_id() is checked accordingly. It relies on |
1844 | * being able to construct an SSL_SESSION that will collide with any existing | |
1845 | * session with a matching session ID. | |
1846 | */ | |
1847 | static int ssl_session_cmp(const SSL_SESSION *a, const SSL_SESSION *b) | |
1848 | { | |
1849 | if (a->ssl_version != b->ssl_version) | |
1850 | return (1); | |
1851 | if (a->session_id_length != b->session_id_length) | |
1852 | return (1); | |
1853 | return (memcmp(a->session_id, b->session_id, a->session_id_length)); | |
1854 | } | |
1855 | ||
1856 | /* | |
1857 | * These wrapper functions should remain rather than redeclaring | |
d0fa136c | 1858 | * SSL_SESSION_hash and SSL_SESSION_cmp for void* types and casting each |
ae5c8664 MC |
1859 | * variable. The reason is that the functions aren't static, they're exposed |
1860 | * via ssl.h. | |
1861 | */ | |
3c1d6bbc BL |
1862 | static IMPLEMENT_LHASH_HASH_FN(ssl_session, SSL_SESSION) |
1863 | static IMPLEMENT_LHASH_COMP_FN(ssl_session, SSL_SESSION) | |
97b17195 | 1864 | |
4ebb342f | 1865 | SSL_CTX *SSL_CTX_new(const SSL_METHOD *meth) |
ae5c8664 MC |
1866 | { |
1867 | SSL_CTX *ret = NULL; | |
dfeab068 | 1868 | |
ae5c8664 MC |
1869 | if (meth == NULL) { |
1870 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_NULL_SSL_METHOD_PASSED); | |
1871 | return (NULL); | |
1872 | } | |
7043fa70 | 1873 | #ifdef OPENSSL_FIPS |
ae5c8664 MC |
1874 | if (FIPS_mode() && (meth->version < TLS1_VERSION)) { |
1875 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_ONLY_TLS_ALLOWED_IN_FIPS_MODE); | |
1876 | return NULL; | |
1877 | } | |
7043fa70 DSH |
1878 | #endif |
1879 | ||
ae5c8664 MC |
1880 | if (SSL_get_ex_data_X509_STORE_CTX_idx() < 0) { |
1881 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_X509_VERIFICATION_SETUP_PROBLEMS); | |
1882 | goto err; | |
1883 | } | |
1884 | ret = (SSL_CTX *)OPENSSL_malloc(sizeof(SSL_CTX)); | |
1885 | if (ret == NULL) | |
1886 | goto err; | |
d02b48c6 | 1887 | |
ae5c8664 | 1888 | memset(ret, 0, sizeof(SSL_CTX)); |
d02b48c6 | 1889 | |
ae5c8664 | 1890 | ret->method = meth; |
d02b48c6 | 1891 | |
ae5c8664 MC |
1892 | ret->cert_store = NULL; |
1893 | ret->session_cache_mode = SSL_SESS_CACHE_SERVER; | |
1894 | ret->session_cache_size = SSL_SESSION_CACHE_MAX_SIZE_DEFAULT; | |
1895 | ret->session_cache_head = NULL; | |
1896 | ret->session_cache_tail = NULL; | |
d02b48c6 | 1897 | |
ae5c8664 MC |
1898 | /* We take the system default */ |
1899 | ret->session_timeout = meth->get_timeout(); | |
d02b48c6 | 1900 | |
ae5c8664 MC |
1901 | ret->new_session_cb = 0; |
1902 | ret->remove_session_cb = 0; | |
1903 | ret->get_session_cb = 0; | |
1904 | ret->generate_session_id = 0; | |
d02b48c6 | 1905 | |
ae5c8664 | 1906 | memset((char *)&ret->stats, 0, sizeof(ret->stats)); |
d02b48c6 | 1907 | |
ae5c8664 MC |
1908 | ret->references = 1; |
1909 | ret->quiet_shutdown = 0; | |
d02b48c6 | 1910 | |
83975c80 | 1911 | /* ret->cipher=NULL;*/ |
e19d4a99 | 1912 | /*- |
83975c80 MC |
1913 | ret->s2->challenge=NULL; |
1914 | ret->master_key=NULL; | |
1915 | ret->key_arg=NULL; | |
1916 | ret->s2->conn_id=NULL; */ | |
d02b48c6 | 1917 | |
ae5c8664 | 1918 | ret->info_callback = NULL; |
d02b48c6 | 1919 | |
ae5c8664 MC |
1920 | ret->app_verify_callback = 0; |
1921 | ret->app_verify_arg = NULL; | |
d02b48c6 | 1922 | |
ae5c8664 MC |
1923 | ret->max_cert_list = SSL_MAX_CERT_LIST_DEFAULT; |
1924 | ret->read_ahead = 0; | |
1925 | ret->msg_callback = 0; | |
1926 | ret->msg_callback_arg = NULL; | |
1927 | ret->verify_mode = SSL_VERIFY_NONE; | |
5d7c222d | 1928 | #if 0 |
ae5c8664 MC |
1929 | ret->verify_depth = -1; /* Don't impose a limit (but x509_lu.c does) */ |
1930 | #endif | |
1931 | ret->sid_ctx_length = 0; | |
1932 | ret->default_verify_callback = NULL; | |
1933 | if ((ret->cert = ssl_cert_new()) == NULL) | |
1934 | goto err; | |
1935 | ||
1936 | ret->default_passwd_callback = 0; | |
1937 | ret->default_passwd_callback_userdata = NULL; | |
1938 | ret->client_cert_cb = 0; | |
1939 | ret->app_gen_cookie_cb = 0; | |
1940 | ret->app_verify_cookie_cb = 0; | |
1941 | ||
1942 | ret->sessions = lh_SSL_SESSION_new(); | |
1943 | if (ret->sessions == NULL) | |
1944 | goto err; | |
1945 | ret->cert_store = X509_STORE_new(); | |
1946 | if (ret->cert_store == NULL) | |
1947 | goto err; | |
1948 | ||
1949 | ssl_create_cipher_list(ret->method, | |
1950 | &ret->cipher_list, &ret->cipher_list_by_id, | |
1951 | meth->version == | |
1952 | SSL2_VERSION ? "SSLv2" : SSL_DEFAULT_CIPHER_LIST, | |
1953 | ret->cert); | |
1954 | if (ret->cipher_list == NULL || sk_SSL_CIPHER_num(ret->cipher_list) <= 0) { | |
1955 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_LIBRARY_HAS_NO_CIPHERS); | |
1956 | goto err2; | |
1957 | } | |
1958 | ||
1959 | ret->param = X509_VERIFY_PARAM_new(); | |
1960 | if (!ret->param) | |
1961 | goto err; | |
1962 | ||
1963 | if ((ret->rsa_md5 = EVP_get_digestbyname("ssl2-md5")) == NULL) { | |
1964 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL2_MD5_ROUTINES); | |
1965 | goto err2; | |
1966 | } | |
1967 | if ((ret->md5 = EVP_get_digestbyname("ssl3-md5")) == NULL) { | |
1968 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_MD5_ROUTINES); | |
1969 | goto err2; | |
1970 | } | |
1971 | if ((ret->sha1 = EVP_get_digestbyname("ssl3-sha1")) == NULL) { | |
1972 | SSLerr(SSL_F_SSL_CTX_NEW, SSL_R_UNABLE_TO_LOAD_SSL3_SHA1_ROUTINES); | |
1973 | goto err2; | |
1974 | } | |
1975 | ||
1976 | if ((ret->client_CA = sk_X509_NAME_new_null()) == NULL) | |
1977 | goto err; | |
1978 | ||
1979 | CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_CTX, ret, &ret->ex_data); | |
1980 | ||
1981 | ret->extra_certs = NULL; | |
1982 | /* No compression for DTLS */ | |
1983 | if (meth->version != DTLS1_VERSION) | |
1984 | ret->comp_methods = SSL_COMP_get_compression_methods(); | |
1985 | ||
1986 | ret->max_send_fragment = SSL3_RT_MAX_PLAIN_LENGTH; | |
566dda07 | 1987 | |
ed3883d2 | 1988 | #ifndef OPENSSL_NO_TLSEXT |
ae5c8664 MC |
1989 | ret->tlsext_servername_callback = 0; |
1990 | ret->tlsext_servername_arg = NULL; | |
1991 | /* Setup RFC4507 ticket keys */ | |
1992 | if ((RAND_pseudo_bytes(ret->tlsext_tick_key_name, 16) <= 0) | |
1993 | || (RAND_bytes(ret->tlsext_tick_hmac_key, 16) <= 0) | |
1994 | || (RAND_bytes(ret->tlsext_tick_aes_key, 16) <= 0)) | |
1995 | ret->options |= SSL_OP_NO_TICKET; | |
6434abbf | 1996 | |
ae5c8664 MC |
1997 | ret->tlsext_status_cb = 0; |
1998 | ret->tlsext_status_arg = NULL; | |
67c8e7f4 | 1999 | |
68b33cc5 | 2000 | # ifndef OPENSSL_NO_NEXTPROTONEG |
ae5c8664 MC |
2001 | ret->next_protos_advertised_cb = 0; |
2002 | ret->next_proto_select_cb = 0; | |
68b33cc5 | 2003 | # endif |
ddac1974 NL |
2004 | #endif |
2005 | #ifndef OPENSSL_NO_PSK | |
ae5c8664 MC |
2006 | ret->psk_identity_hint = NULL; |
2007 | ret->psk_client_callback = NULL; | |
2008 | ret->psk_server_callback = NULL; | |
8671b898 | 2009 | #endif |
a149b246 | 2010 | #ifndef OPENSSL_NO_SRP |
ae5c8664 | 2011 | SSL_CTX_SRP_CTX_init(ret); |
a149b246 | 2012 | #endif |
474b3b1c | 2013 | #ifndef OPENSSL_NO_BUF_FREELISTS |
ae5c8664 MC |
2014 | ret->freelist_max_len = SSL_MAX_BUF_FREELIST_LEN_DEFAULT; |
2015 | ret->rbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST)); | |
2016 | if (!ret->rbuf_freelist) | |
2017 | goto err; | |
2018 | ret->rbuf_freelist->chunklen = 0; | |
2019 | ret->rbuf_freelist->len = 0; | |
2020 | ret->rbuf_freelist->head = NULL; | |
2021 | ret->wbuf_freelist = OPENSSL_malloc(sizeof(SSL3_BUF_FREELIST)); | |
2022 | if (!ret->wbuf_freelist) { | |
2023 | OPENSSL_free(ret->rbuf_freelist); | |
2024 | goto err; | |
2025 | } | |
2026 | ret->wbuf_freelist->chunklen = 0; | |
2027 | ret->wbuf_freelist->len = 0; | |
2028 | ret->wbuf_freelist->head = NULL; | |
ed3883d2 | 2029 | #endif |
4db9677b | 2030 | #ifndef OPENSSL_NO_ENGINE |
ae5c8664 MC |
2031 | ret->client_cert_engine = NULL; |
2032 | # ifdef OPENSSL_SSL_CLIENT_ENGINE_AUTO | |
2033 | # define eng_strx(x) #x | |
2034 | # define eng_str(x) eng_strx(x) | |
2035 | /* Use specific client engine automatically... ignore errors */ | |
2036 | { | |
2037 | ENGINE *eng; | |
2038 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2039 | if (!eng) { | |
2040 | ERR_clear_error(); | |
2041 | ENGINE_load_builtin_engines(); | |
2042 | eng = ENGINE_by_id(eng_str(OPENSSL_SSL_CLIENT_ENGINE_AUTO)); | |
2043 | } | |
2044 | if (!eng || !SSL_CTX_set_client_cert_engine(ret, eng)) | |
2045 | ERR_clear_error(); | |
2046 | } | |
2047 | # endif | |
2048 | #endif | |
2049 | /* | |
2050 | * Default is to connect to non-RI servers. When RI is more widely | |
2051 | * deployed might change this. | |
2052 | */ | |
2053 | ret->options |= SSL_OP_LEGACY_SERVER_CONNECT; | |
2054 | ||
2055 | return (ret); | |
2056 | err: | |
2057 | SSLerr(SSL_F_SSL_CTX_NEW, ERR_R_MALLOC_FAILURE); | |
2058 | err2: | |
2059 | if (ret != NULL) | |
2060 | SSL_CTX_free(ret); | |
2061 | return (NULL); | |
2062 | } | |
d02b48c6 | 2063 | |
0826c85f | 2064 | #if 0 |
f73e07cf | 2065 | static void SSL_COMP_free(SSL_COMP *comp) |
ae5c8664 MC |
2066 | { |
2067 | OPENSSL_free(comp); | |
2068 | } | |
0826c85f | 2069 | #endif |
f73e07cf | 2070 | |
474b3b1c | 2071 | #ifndef OPENSSL_NO_BUF_FREELISTS |
ae5c8664 MC |
2072 | static void ssl_buf_freelist_free(SSL3_BUF_FREELIST *list) |
2073 | { | |
2074 | SSL3_BUF_FREELIST_ENTRY *ent, *next; | |
2075 | for (ent = list->head; ent; ent = next) { | |
2076 | next = ent->next; | |
2077 | OPENSSL_free(ent); | |
2078 | } | |
2079 | OPENSSL_free(list); | |
2080 | } | |
8671b898 BL |
2081 | #endif |
2082 | ||
4f43d0e7 | 2083 | void SSL_CTX_free(SSL_CTX *a) |
ae5c8664 MC |
2084 | { |
2085 | int i; | |
d02b48c6 | 2086 | |
ae5c8664 MC |
2087 | if (a == NULL) |
2088 | return; | |
d02b48c6 | 2089 | |
ae5c8664 | 2090 | i = CRYPTO_add(&a->references, -1, CRYPTO_LOCK_SSL_CTX); |
58964a49 | 2091 | #ifdef REF_PRINT |
ae5c8664 | 2092 | REF_PRINT("SSL_CTX", a); |
58964a49 | 2093 | #endif |
ae5c8664 MC |
2094 | if (i > 0) |
2095 | return; | |
d02b48c6 | 2096 | #ifdef REF_CHECK |
ae5c8664 MC |
2097 | if (i < 0) { |
2098 | fprintf(stderr, "SSL_CTX_free, bad reference count\n"); | |
2099 | abort(); /* ok */ | |
2100 | } | |
2101 | #endif | |
2102 | ||
2103 | if (a->param) | |
2104 | X509_VERIFY_PARAM_free(a->param); | |
2105 | ||
2106 | /* | |
2107 | * Free internal session cache. However: the remove_cb() may reference | |
2108 | * the ex_data of SSL_CTX, thus the ex_data store can only be removed | |
2109 | * after the sessions were flushed. | |
2110 | * As the ex_data handling routines might also touch the session cache, | |
2111 | * the most secure solution seems to be: empty (flush) the cache, then | |
2112 | * free ex_data, then finally free the cache. | |
2113 | * (See ticket [openssl.org #212].) | |
2114 | */ | |
2115 | if (a->sessions != NULL) | |
2116 | SSL_CTX_flush_sessions(a, 0); | |
2117 | ||
2118 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_CTX, a, &a->ex_data); | |
2119 | ||
2120 | if (a->sessions != NULL) | |
2121 | lh_SSL_SESSION_free(a->sessions); | |
2122 | ||
2123 | if (a->cert_store != NULL) | |
2124 | X509_STORE_free(a->cert_store); | |
2125 | if (a->cipher_list != NULL) | |
2126 | sk_SSL_CIPHER_free(a->cipher_list); | |
2127 | if (a->cipher_list_by_id != NULL) | |
2128 | sk_SSL_CIPHER_free(a->cipher_list_by_id); | |
2129 | if (a->cert != NULL) | |
2130 | ssl_cert_free(a->cert); | |
2131 | if (a->client_CA != NULL) | |
2132 | sk_X509_NAME_pop_free(a->client_CA, X509_NAME_free); | |
2133 | if (a->extra_certs != NULL) | |
2134 | sk_X509_pop_free(a->extra_certs, X509_free); | |
2135 | #if 0 /* This should never be done, since it | |
2136 | * removes a global database */ | |
2137 | if (a->comp_methods != NULL) | |
2138 | sk_SSL_COMP_pop_free(a->comp_methods, SSL_COMP_free); | |
cd9b7d7c | 2139 | #else |
ae5c8664 | 2140 | a->comp_methods = NULL; |
cd9b7d7c | 2141 | #endif |
ddac1974 | 2142 | |
7b0194db | 2143 | #ifndef OPENSSL_NO_SRTP |
ae5c8664 MC |
2144 | if (a->srtp_profiles) |
2145 | sk_SRTP_PROTECTION_PROFILE_free(a->srtp_profiles); | |
7b0194db | 2146 | #endif |
060a38a2 | 2147 | |
ddac1974 | 2148 | #ifndef OPENSSL_NO_PSK |
ae5c8664 MC |
2149 | if (a->psk_identity_hint) |
2150 | OPENSSL_free(a->psk_identity_hint); | |
bdfe932d | 2151 | #endif |
a149b246 | 2152 | #ifndef OPENSSL_NO_SRP |
ae5c8664 | 2153 | SSL_CTX_SRP_CTX_free(a); |
a149b246 | 2154 | #endif |
bdfe932d | 2155 | #ifndef OPENSSL_NO_ENGINE |
ae5c8664 MC |
2156 | if (a->client_cert_engine) |
2157 | ENGINE_finish(a->client_cert_engine); | |
ddac1974 | 2158 | #endif |
8671b898 | 2159 | |
474b3b1c | 2160 | #ifndef OPENSSL_NO_BUF_FREELISTS |
ae5c8664 MC |
2161 | if (a->wbuf_freelist) |
2162 | ssl_buf_freelist_free(a->wbuf_freelist); | |
2163 | if (a->rbuf_freelist) | |
2164 | ssl_buf_freelist_free(a->rbuf_freelist); | |
6b870763 DSH |
2165 | #endif |
2166 | #ifndef OPENSSL_NO_TLSEXT | |
2167 | # ifndef OPENSSL_NO_EC | |
ae5c8664 MC |
2168 | if (a->tlsext_ecpointformatlist) |
2169 | OPENSSL_free(a->tlsext_ecpointformatlist); | |
2170 | if (a->tlsext_ellipticcurvelist) | |
2171 | OPENSSL_free(a->tlsext_ellipticcurvelist); | |
2172 | # endif /* OPENSSL_NO_EC */ | |
2173 | if (a->alpn_client_proto_list != NULL) | |
2174 | OPENSSL_free(a->alpn_client_proto_list); | |
8671b898 BL |
2175 | #endif |
2176 | ||
ae5c8664 MC |
2177 | OPENSSL_free(a); |
2178 | } | |
d02b48c6 | 2179 | |
3ae76679 | 2180 | void SSL_CTX_set_default_passwd_cb(SSL_CTX *ctx, pem_password_cb *cb) |
ae5c8664 MC |
2181 | { |
2182 | ctx->default_passwd_callback = cb; | |
2183 | } | |
2184 | ||
2185 | void SSL_CTX_set_default_passwd_cb_userdata(SSL_CTX *ctx, void *u) | |
2186 | { | |
2187 | ctx->default_passwd_callback_userdata = u; | |
2188 | } | |
2189 | ||
2190 | void SSL_CTX_set_cert_verify_callback(SSL_CTX *ctx, | |
2191 | int (*cb) (X509_STORE_CTX *, void *), | |
2192 | void *arg) | |
2193 | { | |
2194 | ctx->app_verify_callback = cb; | |
2195 | ctx->app_verify_arg = arg; | |
2196 | } | |
2197 | ||
2198 | void SSL_CTX_set_verify(SSL_CTX *ctx, int mode, | |
2199 | int (*cb) (int, X509_STORE_CTX *)) | |
2200 | { | |
2201 | ctx->verify_mode = mode; | |
2202 | ctx->default_verify_callback = cb; | |
2203 | } | |
2204 | ||
2205 | void SSL_CTX_set_verify_depth(SSL_CTX *ctx, int depth) | |
2206 | { | |
2207 | X509_VERIFY_PARAM_set_depth(ctx->param, depth); | |
2208 | } | |
2209 | ||
2210 | void SSL_CTX_set_cert_cb(SSL_CTX *c, int (*cb) (SSL *ssl, void *arg), | |
2211 | void *arg) | |
2212 | { | |
2213 | ssl_cert_set_cert_cb(c->cert, cb, arg); | |
2214 | } | |
2215 | ||
2216 | void SSL_set_cert_cb(SSL *s, int (*cb) (SSL *ssl, void *arg), void *arg) | |
2217 | { | |
2218 | ssl_cert_set_cert_cb(s->cert, cb, arg); | |
2219 | } | |
623a5e24 | 2220 | |
babb3798 | 2221 | void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher) |
ae5c8664 MC |
2222 | { |
2223 | CERT_PKEY *cpk; | |
2224 | int rsa_enc, rsa_tmp, rsa_sign, dh_tmp, dh_rsa, dh_dsa, dsa_sign; | |
2225 | int rsa_enc_export, dh_rsa_export, dh_dsa_export; | |
2226 | int rsa_tmp_export, dh_tmp_export, kl; | |
2227 | unsigned long mask_k, mask_a, emask_k, emask_a; | |
5b430cfc | 2228 | #ifndef OPENSSL_NO_ECDSA |
ae5c8664 | 2229 | int have_ecc_cert, ecdsa_ok, ecc_pkey_size; |
5b430cfc | 2230 | #endif |
3eeaab4b | 2231 | #ifndef OPENSSL_NO_ECDH |
ae5c8664 | 2232 | int have_ecdh_tmp, ecdh_ok; |
3eeaab4b | 2233 | #endif |
5b430cfc | 2234 | #ifndef OPENSSL_NO_EC |
ae5c8664 MC |
2235 | X509 *x = NULL; |
2236 | EVP_PKEY *ecc_pkey = NULL; | |
2237 | int signature_nid = 0, pk_nid = 0, md_nid = 0; | |
5b430cfc | 2238 | #endif |
ae5c8664 MC |
2239 | if (c == NULL) |
2240 | return; | |
d02b48c6 | 2241 | |
ae5c8664 | 2242 | kl = SSL_C_EXPORT_PKEYLENGTH(cipher); |
60e31c3a | 2243 | |
bc36ee62 | 2244 | #ifndef OPENSSL_NO_RSA |
ae5c8664 MC |
2245 | rsa_tmp = (c->rsa_tmp != NULL || c->rsa_tmp_cb != NULL); |
2246 | rsa_tmp_export = (c->rsa_tmp_cb != NULL || | |
2247 | (rsa_tmp && RSA_size(c->rsa_tmp) * 8 <= kl)); | |
d02b48c6 | 2248 | #else |
ae5c8664 | 2249 | rsa_tmp = rsa_tmp_export = 0; |
d02b48c6 | 2250 | #endif |
bc36ee62 | 2251 | #ifndef OPENSSL_NO_DH |
ae5c8664 MC |
2252 | dh_tmp = (c->dh_tmp != NULL || c->dh_tmp_cb != NULL); |
2253 | dh_tmp_export = (c->dh_tmp_cb != NULL || | |
2254 | (dh_tmp && DH_size(c->dh_tmp) * 8 <= kl)); | |
d02b48c6 | 2255 | #else |
ae5c8664 | 2256 | dh_tmp = dh_tmp_export = 0; |
d02b48c6 RE |
2257 | #endif |
2258 | ||
ea262260 | 2259 | #ifndef OPENSSL_NO_ECDH |
ae5c8664 MC |
2260 | have_ecdh_tmp = (c->ecdh_tmp || c->ecdh_tmp_cb || c->ecdh_tmp_auto); |
2261 | #endif | |
2262 | cpk = &(c->pkeys[SSL_PKEY_RSA_ENC]); | |
2263 | rsa_enc = cpk->valid_flags & CERT_PKEY_VALID; | |
2264 | rsa_enc_export = (rsa_enc && EVP_PKEY_size(cpk->privatekey) * 8 <= kl); | |
2265 | cpk = &(c->pkeys[SSL_PKEY_RSA_SIGN]); | |
2266 | rsa_sign = cpk->valid_flags & CERT_PKEY_SIGN; | |
2267 | cpk = &(c->pkeys[SSL_PKEY_DSA_SIGN]); | |
2268 | dsa_sign = cpk->valid_flags & CERT_PKEY_SIGN; | |
2269 | cpk = &(c->pkeys[SSL_PKEY_DH_RSA]); | |
2270 | dh_rsa = cpk->valid_flags & CERT_PKEY_VALID; | |
2271 | dh_rsa_export = (dh_rsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl); | |
2272 | cpk = &(c->pkeys[SSL_PKEY_DH_DSA]); | |
d02b48c6 | 2273 | /* FIX THIS EAY EAY EAY */ |
ae5c8664 MC |
2274 | dh_dsa = cpk->valid_flags & CERT_PKEY_VALID; |
2275 | dh_dsa_export = (dh_dsa && EVP_PKEY_size(cpk->privatekey) * 8 <= kl); | |
2276 | cpk = &(c->pkeys[SSL_PKEY_ECC]); | |
5b430cfc | 2277 | #ifndef OPENSSL_NO_EC |
ae5c8664 | 2278 | have_ecc_cert = cpk->valid_flags & CERT_PKEY_VALID; |
5b430cfc | 2279 | #endif |
ae5c8664 MC |
2280 | mask_k = 0; |
2281 | mask_a = 0; | |
2282 | emask_k = 0; | |
2283 | emask_a = 0; | |
0e1dba93 | 2284 | |
d02b48c6 | 2285 | #ifdef CIPHER_DEBUG |
ae5c8664 MC |
2286 | fprintf(stderr, |
2287 | "rt=%d rte=%d dht=%d ecdht=%d re=%d ree=%d rs=%d ds=%d dhr=%d dhd=%d\n", | |
2288 | rsa_tmp, rsa_tmp_export, dh_tmp, have_ecdh_tmp, rsa_enc, | |
2289 | rsa_enc_export, rsa_sign, dsa_sign, dh_rsa, dh_dsa); | |
2290 | #endif | |
2291 | ||
2292 | cpk = &(c->pkeys[SSL_PKEY_GOST01]); | |
2293 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2294 | mask_k |= SSL_kGOST; | |
2295 | mask_a |= SSL_aGOST01; | |
2296 | } | |
2297 | cpk = &(c->pkeys[SSL_PKEY_GOST94]); | |
2298 | if (cpk->x509 != NULL && cpk->privatekey != NULL) { | |
2299 | mask_k |= SSL_kGOST; | |
2300 | mask_a |= SSL_aGOST94; | |
2301 | } | |
2302 | ||
2303 | if (rsa_enc || (rsa_tmp && rsa_sign)) | |
2304 | mask_k |= SSL_kRSA; | |
2305 | if (rsa_enc_export || (rsa_tmp_export && (rsa_sign || rsa_enc))) | |
2306 | emask_k |= SSL_kRSA; | |
d02b48c6 RE |
2307 | |
2308 | #if 0 | |
ae5c8664 MC |
2309 | /* The match needs to be both kEDH and aRSA or aDSA, so don't worry */ |
2310 | if ((dh_tmp || dh_rsa || dh_dsa) && (rsa_enc || rsa_sign || dsa_sign)) | |
2311 | mask_k |= SSL_kEDH; | |
2312 | if ((dh_tmp_export || dh_rsa_export || dh_dsa_export) && | |
2313 | (rsa_enc || rsa_sign || dsa_sign)) | |
2314 | emask_k |= SSL_kEDH; | |
d02b48c6 RE |
2315 | #endif |
2316 | ||
ae5c8664 MC |
2317 | if (dh_tmp_export) |
2318 | emask_k |= SSL_kEDH; | |
d02b48c6 | 2319 | |
ae5c8664 MC |
2320 | if (dh_tmp) |
2321 | mask_k |= SSL_kEDH; | |
d02b48c6 | 2322 | |
ae5c8664 MC |
2323 | if (dh_rsa) |
2324 | mask_k |= SSL_kDHr; | |
2325 | if (dh_rsa_export) | |
2326 | emask_k |= SSL_kDHr; | |
d02b48c6 | 2327 | |
ae5c8664 MC |
2328 | if (dh_dsa) |
2329 | mask_k |= SSL_kDHd; | |
2330 | if (dh_dsa_export) | |
2331 | emask_k |= SSL_kDHd; | |
d02b48c6 | 2332 | |
e4731f76 | 2333 | if (mask_k & (SSL_kDHr | SSL_kDHd)) |
ae5c8664 | 2334 | mask_a |= SSL_aDH; |
0ffa4997 | 2335 | |
ae5c8664 MC |
2336 | if (rsa_enc || rsa_sign) { |
2337 | mask_a |= SSL_aRSA; | |
2338 | emask_a |= SSL_aRSA; | |
2339 | } | |
d02b48c6 | 2340 | |
ae5c8664 MC |
2341 | if (dsa_sign) { |
2342 | mask_a |= SSL_aDSS; | |
2343 | emask_a |= SSL_aDSS; | |
2344 | } | |
d02b48c6 | 2345 | |
ae5c8664 MC |
2346 | mask_a |= SSL_aNULL; |
2347 | emask_a |= SSL_aNULL; | |
d02b48c6 | 2348 | |
bc36ee62 | 2349 | #ifndef OPENSSL_NO_KRB5 |
ae5c8664 MC |
2350 | mask_k |= SSL_kKRB5; |
2351 | mask_a |= SSL_aKRB5; | |
2352 | emask_k |= SSL_kKRB5; | |
2353 | emask_a |= SSL_aKRB5; | |
f9b3bff6 RL |
2354 | #endif |
2355 | ||
ae5c8664 MC |
2356 | /* |
2357 | * An ECC certificate may be usable for ECDH and/or ECDSA cipher suites | |
2358 | * depending on the key usage extension. | |
2359 | */ | |
5b430cfc | 2360 | #ifndef OPENSSL_NO_EC |
ae5c8664 MC |
2361 | if (have_ecc_cert) { |
2362 | cpk = &c->pkeys[SSL_PKEY_ECC]; | |
2363 | x = cpk->x509; | |
2364 | /* This call populates extension flags (ex_flags) */ | |
2365 | X509_check_purpose(x, -1, 0); | |
2366 | # ifndef OPENSSL_NO_ECDH | |
2367 | ecdh_ok = (x->ex_flags & EXFLAG_KUSAGE) ? | |
2368 | (x->ex_kusage & X509v3_KU_KEY_AGREEMENT) : 1; | |
2369 | # endif | |
2370 | ecdsa_ok = (x->ex_flags & EXFLAG_KUSAGE) ? | |
2371 | (x->ex_kusage & X509v3_KU_DIGITAL_SIGNATURE) : 1; | |
2372 | if (!(cpk->valid_flags & CERT_PKEY_SIGN)) | |
2373 | ecdsa_ok = 0; | |
2374 | ecc_pkey = X509_get_pubkey(x); | |
2375 | ecc_pkey_size = (ecc_pkey != NULL) ? EVP_PKEY_bits(ecc_pkey) : 0; | |
2376 | EVP_PKEY_free(ecc_pkey); | |
2377 | if ((x->sig_alg) && (x->sig_alg->algorithm)) { | |
2378 | signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); | |
2379 | OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid); | |
2380 | } | |
2381 | # ifndef OPENSSL_NO_ECDH | |
2382 | if (ecdh_ok) { | |
2383 | ||
2384 | if (pk_nid == NID_rsaEncryption || pk_nid == NID_rsa) { | |
2385 | mask_k |= SSL_kECDHr; | |
2386 | mask_a |= SSL_aECDH; | |
2387 | if (ecc_pkey_size <= 163) { | |
2388 | emask_k |= SSL_kECDHr; | |
2389 | emask_a |= SSL_aECDH; | |
2390 | } | |
2391 | } | |
2392 | ||
2393 | if (pk_nid == NID_X9_62_id_ecPublicKey) { | |
2394 | mask_k |= SSL_kECDHe; | |
2395 | mask_a |= SSL_aECDH; | |
2396 | if (ecc_pkey_size <= 163) { | |
2397 | emask_k |= SSL_kECDHe; | |
2398 | emask_a |= SSL_aECDH; | |
2399 | } | |
2400 | } | |
2401 | } | |
2402 | # endif | |
2403 | # ifndef OPENSSL_NO_ECDSA | |
2404 | if (ecdsa_ok) { | |
2405 | mask_a |= SSL_aECDSA; | |
2406 | emask_a |= SSL_aECDSA; | |
2407 | } | |
2408 | # endif | |
2409 | } | |
5b430cfc | 2410 | #endif |
ea262260 BM |
2411 | |
2412 | #ifndef OPENSSL_NO_ECDH | |
ae5c8664 MC |
2413 | if (have_ecdh_tmp) { |
2414 | mask_k |= SSL_kEECDH; | |
2415 | emask_k |= SSL_kEECDH; | |
2416 | } | |
ea262260 | 2417 | #endif |
ddac1974 NL |
2418 | |
2419 | #ifndef OPENSSL_NO_PSK | |
ae5c8664 MC |
2420 | mask_k |= SSL_kPSK; |
2421 | mask_a |= SSL_aPSK; | |
2422 | emask_k |= SSL_kPSK; | |
2423 | emask_a |= SSL_aPSK; | |
ddac1974 NL |
2424 | #endif |
2425 | ||
ae5c8664 MC |
2426 | c->mask_k = mask_k; |
2427 | c->mask_a = mask_a; | |
2428 | c->export_mask_k = emask_k; | |
2429 | c->export_mask_a = emask_a; | |
2430 | c->valid = 1; | |
2431 | } | |
d02b48c6 | 2432 | |
ea262260 BM |
2433 | /* This handy macro borrowed from crypto/x509v3/v3_purp.c */ |
2434 | #define ku_reject(x, usage) \ | |
ae5c8664 | 2435 | (((x)->ex_flags & EXFLAG_KUSAGE) && !((x)->ex_kusage & (usage))) |
ea262260 | 2436 | |
82ae5713 DSH |
2437 | #ifndef OPENSSL_NO_EC |
2438 | ||
9472baae | 2439 | int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s) |
ae5c8664 MC |
2440 | { |
2441 | unsigned long alg_k, alg_a; | |
2442 | EVP_PKEY *pkey = NULL; | |
2443 | int keysize = 0; | |
2444 | int signature_nid = 0, md_nid = 0, pk_nid = 0; | |
2445 | const SSL_CIPHER *cs = s->s3->tmp.new_cipher; | |
2446 | ||
2447 | alg_k = cs->algorithm_mkey; | |
2448 | alg_a = cs->algorithm_auth; | |
2449 | ||
2450 | if (SSL_C_IS_EXPORT(cs)) { | |
2451 | /* ECDH key length in export ciphers must be <= 163 bits */ | |
2452 | pkey = X509_get_pubkey(x); | |
2453 | if (pkey == NULL) | |
2454 | return 0; | |
2455 | keysize = EVP_PKEY_bits(pkey); | |
2456 | EVP_PKEY_free(pkey); | |
2457 | if (keysize > 163) | |
2458 | return 0; | |
2459 | } | |
2460 | ||
2461 | /* This call populates the ex_flags field correctly */ | |
2462 | X509_check_purpose(x, -1, 0); | |
2463 | if ((x->sig_alg) && (x->sig_alg->algorithm)) { | |
2464 | signature_nid = OBJ_obj2nid(x->sig_alg->algorithm); | |
2465 | OBJ_find_sigid_algs(signature_nid, &md_nid, &pk_nid); | |
2466 | } | |
2467 | if (alg_k & SSL_kECDHe || alg_k & SSL_kECDHr) { | |
2468 | /* key usage, if present, must allow key agreement */ | |
2469 | if (ku_reject(x, X509v3_KU_KEY_AGREEMENT)) { | |
2470 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, | |
2471 | SSL_R_ECC_CERT_NOT_FOR_KEY_AGREEMENT); | |
2472 | return 0; | |
2473 | } | |
2474 | if ((alg_k & SSL_kECDHe) && TLS1_get_version(s) < TLS1_2_VERSION) { | |
2475 | /* signature alg must be ECDSA */ | |
2476 | if (pk_nid != NID_X9_62_id_ecPublicKey) { | |
2477 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, | |
2478 | SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE); | |
2479 | return 0; | |
2480 | } | |
2481 | } | |
2482 | if ((alg_k & SSL_kECDHr) && TLS1_get_version(s) < TLS1_2_VERSION) { | |
2483 | /* signature alg must be RSA */ | |
2484 | ||
2485 | if (pk_nid != NID_rsaEncryption && pk_nid != NID_rsa) { | |
2486 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, | |
2487 | SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE); | |
2488 | return 0; | |
2489 | } | |
2490 | } | |
2491 | } | |
2492 | if (alg_a & SSL_aECDSA) { | |
2493 | /* key usage, if present, must allow signing */ | |
2494 | if (ku_reject(x, X509v3_KU_DIGITAL_SIGNATURE)) { | |
2495 | SSLerr(SSL_F_SSL_CHECK_SRVR_ECC_CERT_AND_ALG, | |
2496 | SSL_R_ECC_CERT_NOT_FOR_SIGNING); | |
2497 | return 0; | |
2498 | } | |
2499 | } | |
2500 | ||
2501 | return 1; /* all checks are ok */ | |
2502 | } | |
ea262260 | 2503 | |
82ae5713 DSH |
2504 | #endif |
2505 | ||
da8512aa | 2506 | static int ssl_get_server_cert_index(const SSL *s) |
ae5c8664 MC |
2507 | { |
2508 | int idx; | |
2509 | idx = ssl_cipher_get_cert_index(s->s3->tmp.new_cipher); | |
2510 | if (idx == SSL_PKEY_RSA_ENC && !s->cert->pkeys[SSL_PKEY_RSA_ENC].x509) | |
2511 | idx = SSL_PKEY_RSA_SIGN; | |
2512 | if (idx == -1) | |
2513 | SSLerr(SSL_F_SSL_GET_SERVER_CERT_INDEX, ERR_R_INTERNAL_ERROR); | |
2514 | return idx; | |
2515 | } | |
8a02a46a | 2516 | |
da8512aa | 2517 | CERT_PKEY *ssl_get_server_send_pkey(const SSL *s) |
ae5c8664 MC |
2518 | { |
2519 | CERT *c; | |
2520 | int i; | |
ea262260 | 2521 | |
ae5c8664 MC |
2522 | c = s->cert; |
2523 | if (!s->s3 || !s->s3->tmp.new_cipher) | |
2524 | return NULL; | |
2525 | ssl_set_cert_masks(c, s->s3->tmp.new_cipher); | |
8a02a46a | 2526 | |
50b5966e | 2527 | #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL |
ae5c8664 MC |
2528 | /* |
2529 | * Broken protocol test: return last used certificate: which may mismatch | |
2530 | * the one expected. | |
2531 | */ | |
2532 | if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL) | |
2533 | return c->key; | |
50b5966e DSH |
2534 | #endif |
2535 | ||
ae5c8664 | 2536 | i = ssl_get_server_cert_index(s); |
8a02a46a | 2537 | |
ae5c8664 MC |
2538 | /* This may or may not be an error. */ |
2539 | if (i < 0) | |
2540 | return NULL; | |
8a02a46a | 2541 | |
ae5c8664 MC |
2542 | /* May be NULL. */ |
2543 | return &c->pkeys[i]; | |
2544 | } | |
d02b48c6 | 2545 | |
ae5c8664 MC |
2546 | EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *cipher, |
2547 | const EVP_MD **pmd) | |
2548 | { | |
2549 | unsigned long alg_a; | |
2550 | CERT *c; | |
2551 | int idx = -1; | |
d02b48c6 | 2552 | |
ae5c8664 MC |
2553 | alg_a = cipher->algorithm_auth; |
2554 | c = s->cert; | |
d02b48c6 | 2555 | |
50b5966e | 2556 | #ifdef OPENSSL_SSL_DEBUG_BROKEN_PROTOCOL |
ae5c8664 MC |
2557 | /* |
2558 | * Broken protocol test: use last key: which may mismatch the one | |
2559 | * expected. | |
2560 | */ | |
2561 | if (c->cert_flags & SSL_CERT_FLAG_BROKEN_PROTOCOL) | |
2562 | idx = c->key - c->pkeys; | |
2563 | else | |
2564 | #endif | |
2565 | ||
2566 | if ((alg_a & SSL_aDSS) && | |
2567 | (c->pkeys[SSL_PKEY_DSA_SIGN].privatekey != NULL)) | |
2568 | idx = SSL_PKEY_DSA_SIGN; | |
2569 | else if (alg_a & SSL_aRSA) { | |
2570 | if (c->pkeys[SSL_PKEY_RSA_SIGN].privatekey != NULL) | |
2571 | idx = SSL_PKEY_RSA_SIGN; | |
2572 | else if (c->pkeys[SSL_PKEY_RSA_ENC].privatekey != NULL) | |
2573 | idx = SSL_PKEY_RSA_ENC; | |
2574 | } else if ((alg_a & SSL_aECDSA) && | |
2575 | (c->pkeys[SSL_PKEY_ECC].privatekey != NULL)) | |
2576 | idx = SSL_PKEY_ECC; | |
2577 | if (idx == -1) { | |
2578 | SSLerr(SSL_F_SSL_GET_SIGN_PKEY, ERR_R_INTERNAL_ERROR); | |
2579 | return (NULL); | |
2580 | } | |
2581 | if (pmd) | |
2582 | *pmd = c->pkeys[idx].digest; | |
2583 | return c->pkeys[idx].privatekey; | |
2584 | } | |
d02b48c6 | 2585 | |
8a02a46a | 2586 | #ifndef OPENSSL_NO_TLSEXT |
e27711cf | 2587 | int ssl_get_server_cert_serverinfo(SSL *s, const unsigned char **serverinfo, |
ae5c8664 MC |
2588 | size_t *serverinfo_length) |
2589 | { | |
2590 | CERT *c = NULL; | |
2591 | int i = 0; | |
2592 | *serverinfo_length = 0; | |
2593 | ||
2594 | c = s->cert; | |
2595 | i = ssl_get_server_cert_index(s); | |
2596 | ||
2597 | if (i == -1) | |
2598 | return 0; | |
2599 | if (c->pkeys[i].serverinfo == NULL) | |
2600 | return 0; | |
2601 | ||
2602 | *serverinfo = c->pkeys[i].serverinfo; | |
2603 | *serverinfo_length = c->pkeys[i].serverinfo_length; | |
2604 | return 1; | |
2605 | } | |
2606 | #endif | |
2607 | ||
2608 | void ssl_update_cache(SSL *s, int mode) | |
2609 | { | |
2610 | int i; | |
2611 | ||
2612 | /* | |
2613 | * If the session_id_length is 0, we are not supposed to cache it, and it | |
2614 | * would be rather hard to do anyway :-) | |
2615 | */ | |
2616 | if (s->session->session_id_length == 0) | |
2617 | return; | |
2618 | ||
2619 | i = s->session_ctx->session_cache_mode; | |
2620 | if ((i & mode) && (!s->hit) | |
2621 | && ((i & SSL_SESS_CACHE_NO_INTERNAL_STORE) | |
2622 | || SSL_CTX_add_session(s->session_ctx, s->session)) | |
2623 | && (s->session_ctx->new_session_cb != NULL)) { | |
2624 | CRYPTO_add(&s->session->references, 1, CRYPTO_LOCK_SSL_SESSION); | |
2625 | if (!s->session_ctx->new_session_cb(s, s->session)) | |
2626 | SSL_SESSION_free(s->session); | |
2627 | } | |
2628 | ||
2629 | /* auto flush every 255 connections */ | |
2630 | if ((!(i & SSL_SESS_CACHE_NO_AUTO_CLEAR)) && ((i & mode) == mode)) { | |
2631 | if ((((mode & SSL_SESS_CACHE_CLIENT) | |
2632 | ? s->session_ctx->stats.sess_connect_good | |
2633 | : s->session_ctx->stats.sess_accept_good) & 0xff) == 0xff) { | |
2634 | SSL_CTX_flush_sessions(s->session_ctx, (unsigned long)time(NULL)); | |
2635 | } | |
2636 | } | |
2637 | } | |
d02b48c6 | 2638 | |
c4f01c53 | 2639 | const SSL_METHOD *SSL_CTX_get_ssl_method(SSL_CTX *ctx) |
ae5c8664 MC |
2640 | { |
2641 | return ctx->method; | |
2642 | } | |
c4f01c53 | 2643 | |
4ebb342f | 2644 | const SSL_METHOD *SSL_get_ssl_method(SSL *s) |
ae5c8664 MC |
2645 | { |
2646 | return (s->method); | |
2647 | } | |
d02b48c6 | 2648 | |
4ebb342f | 2649 | int SSL_set_ssl_method(SSL *s, const SSL_METHOD *meth) |
ae5c8664 MC |
2650 | { |
2651 | int conn = -1; | |
2652 | int ret = 1; | |
2653 | ||
2654 | if (s->method != meth) { | |
2655 | if (s->handshake_func != NULL) | |
2656 | conn = (s->handshake_func == s->method->ssl_connect); | |
2657 | ||
2658 | if (s->method->version == meth->version) | |
2659 | s->method = meth; | |
2660 | else { | |
2661 | s->method->ssl_free(s); | |
2662 | s->method = meth; | |
2663 | ret = s->method->ssl_new(s); | |
2664 | } | |
2665 | ||
2666 | if (conn == 1) | |
2667 | s->handshake_func = meth->ssl_connect; | |
2668 | else if (conn == 0) | |
2669 | s->handshake_func = meth->ssl_accept; | |
2670 | } | |
2671 | return (ret); | |
2672 | } | |
2673 | ||
2674 | int SSL_get_error(const SSL *s, int i) | |
2675 | { | |
2676 | int reason; | |
2677 | unsigned long l; | |
2678 | BIO *bio; | |
2679 | ||
2680 | if (i > 0) | |
2681 | return (SSL_ERROR_NONE); | |
2682 | ||
2683 | /* | |
2684 | * Make things return SSL_ERROR_SYSCALL when doing SSL_do_handshake etc, | |
2685 | * where we do encode the error | |
2686 | */ | |
2687 | if ((l = ERR_peek_error()) != 0) { | |
2688 | if (ERR_GET_LIB(l) == ERR_LIB_SYS) | |
2689 | return (SSL_ERROR_SYSCALL); | |
2690 | else | |
2691 | return (SSL_ERROR_SSL); | |
2692 | } | |
2693 | ||
2694 | if ((i < 0) && SSL_want_read(s)) { | |
2695 | bio = SSL_get_rbio(s); | |
2696 | if (BIO_should_read(bio)) | |
2697 | return (SSL_ERROR_WANT_READ); | |
2698 | else if (BIO_should_write(bio)) | |
2699 | /* | |
2700 | * This one doesn't make too much sense ... We never try to write | |
2701 | * to the rbio, and an application program where rbio and wbio | |
2702 | * are separate couldn't even know what it should wait for. | |
2703 | * However if we ever set s->rwstate incorrectly (so that we have | |
2704 | * SSL_want_read(s) instead of SSL_want_write(s)) and rbio and | |
2705 | * wbio *are* the same, this test works around that bug; so it | |
2706 | * might be safer to keep it. | |
2707 | */ | |
2708 | return (SSL_ERROR_WANT_WRITE); | |
2709 | else if (BIO_should_io_special(bio)) { | |
2710 | reason = BIO_get_retry_reason(bio); | |
2711 | if (reason == BIO_RR_CONNECT) | |
2712 | return (SSL_ERROR_WANT_CONNECT); | |
2713 | else if (reason == BIO_RR_ACCEPT) | |
2714 | return (SSL_ERROR_WANT_ACCEPT); | |
2715 | else | |
2716 | return (SSL_ERROR_SYSCALL); /* unknown */ | |
2717 | } | |
2718 | } | |
2719 | ||
2720 | if ((i < 0) && SSL_want_write(s)) { | |
2721 | bio = SSL_get_wbio(s); | |
2722 | if (BIO_should_write(bio)) | |
2723 | return (SSL_ERROR_WANT_WRITE); | |
2724 | else if (BIO_should_read(bio)) | |
2725 | /* | |
2726 | * See above (SSL_want_read(s) with BIO_should_write(bio)) | |
2727 | */ | |
2728 | return (SSL_ERROR_WANT_READ); | |
2729 | else if (BIO_should_io_special(bio)) { | |
2730 | reason = BIO_get_retry_reason(bio); | |
2731 | if (reason == BIO_RR_CONNECT) | |
2732 | return (SSL_ERROR_WANT_CONNECT); | |
2733 | else if (reason == BIO_RR_ACCEPT) | |
2734 | return (SSL_ERROR_WANT_ACCEPT); | |
2735 | else | |
2736 | return (SSL_ERROR_SYSCALL); | |
2737 | } | |
2738 | } | |
2739 | if ((i < 0) && SSL_want_x509_lookup(s)) { | |
2740 | return (SSL_ERROR_WANT_X509_LOOKUP); | |
2741 | } | |
2742 | ||
2743 | if (i == 0) { | |
2744 | if (s->version == SSL2_VERSION) { | |
2745 | /* assume it is the socket being closed */ | |
2746 | return (SSL_ERROR_ZERO_RETURN); | |
2747 | } else { | |
2748 | if ((s->shutdown & SSL_RECEIVED_SHUTDOWN) && | |
2749 | (s->s3->warn_alert == SSL_AD_CLOSE_NOTIFY)) | |
2750 | return (SSL_ERROR_ZERO_RETURN); | |
2751 | } | |
2752 | } | |
2753 | return (SSL_ERROR_SYSCALL); | |
2754 | } | |
d02b48c6 | 2755 | |
4f43d0e7 | 2756 | int SSL_do_handshake(SSL *s) |
ae5c8664 MC |
2757 | { |
2758 | int ret = 1; | |
2759 | ||
2760 | if (s->handshake_func == NULL) { | |
2761 | SSLerr(SSL_F_SSL_DO_HANDSHAKE, SSL_R_CONNECTION_TYPE_NOT_SET); | |
2762 | return (-1); | |
2763 | } | |
2764 | ||
2765 | s->method->ssl_renegotiate_check(s); | |
2766 | ||
2767 | if (SSL_in_init(s) || SSL_in_before(s)) { | |
2768 | ret = s->handshake_func(s); | |
2769 | } | |
2770 | return (ret); | |
2771 | } | |
2772 | ||
2773 | /* | |
2774 | * For the next 2 functions, SSL_clear() sets shutdown and so one of these | |
2775 | * calls will reset it | |
2776 | */ | |
4f43d0e7 | 2777 | void SSL_set_accept_state(SSL *s) |
ae5c8664 MC |
2778 | { |
2779 | s->server = 1; | |
2780 | s->shutdown = 0; | |
2781 | s->state = SSL_ST_ACCEPT | SSL_ST_BEFORE; | |
2782 | s->handshake_func = s->method->ssl_accept; | |
2783 | /* clear the current cipher */ | |
2784 | ssl_clear_cipher_ctx(s); | |
2785 | ssl_clear_hash_ctx(&s->read_hash); | |
2786 | ssl_clear_hash_ctx(&s->write_hash); | |
2787 | } | |
d02b48c6 | 2788 | |
4f43d0e7 | 2789 | void SSL_set_connect_state(SSL *s) |
ae5c8664 MC |
2790 | { |
2791 | s->server = 0; | |
2792 | s->shutdown = 0; | |
2793 | s->state = SSL_ST_CONNECT | SSL_ST_BEFORE; | |
2794 | s->handshake_func = s->method->ssl_connect; | |
2795 | /* clear the current cipher */ | |
2796 | ssl_clear_cipher_ctx(s); | |
2797 | ssl_clear_hash_ctx(&s->read_hash); | |
2798 | ssl_clear_hash_ctx(&s->write_hash); | |
2799 | } | |
d02b48c6 | 2800 | |
4f43d0e7 | 2801 | int ssl_undefined_function(SSL *s) |
ae5c8664 MC |
2802 | { |
2803 | SSLerr(SSL_F_SSL_UNDEFINED_FUNCTION, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
2804 | return (0); | |
2805 | } | |
d02b48c6 | 2806 | |
41a15c4f | 2807 | int ssl_undefined_void_function(void) |
ae5c8664 MC |
2808 | { |
2809 | SSLerr(SSL_F_SSL_UNDEFINED_VOID_FUNCTION, | |
2810 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
2811 | return (0); | |
2812 | } | |
41a15c4f | 2813 | |
0821bcd4 | 2814 | int ssl_undefined_const_function(const SSL *s) |
ae5c8664 MC |
2815 | { |
2816 | SSLerr(SSL_F_SSL_UNDEFINED_CONST_FUNCTION, | |
2817 | ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
2818 | return (0); | |
2819 | } | |
0821bcd4 | 2820 | |
4f43d0e7 | 2821 | SSL_METHOD *ssl_bad_method(int ver) |
ae5c8664 MC |
2822 | { |
2823 | SSLerr(SSL_F_SSL_BAD_METHOD, ERR_R_SHOULD_NOT_HAVE_BEEN_CALLED); | |
2824 | return (NULL); | |
2825 | } | |
d02b48c6 | 2826 | |
0821bcd4 | 2827 | const char *SSL_get_version(const SSL *s) |
ae5c8664 MC |
2828 | { |
2829 | if (s->version == TLS1_2_VERSION) | |
2830 | return ("TLSv1.2"); | |
2831 | else if (s->version == TLS1_1_VERSION) | |
2832 | return ("TLSv1.1"); | |
2833 | else if (s->version == TLS1_VERSION) | |
2834 | return ("TLSv1"); | |
2835 | else if (s->version == SSL3_VERSION) | |
2836 | return ("SSLv3"); | |
2837 | else if (s->version == SSL2_VERSION) | |
2838 | return ("SSLv2"); | |
3edf1b98 DW |
2839 | else if (s->version == DTLS1_BAD_VER) |
2840 | return ("DTLSv0.9"); | |
2841 | else if (s->version == DTLS1_VERSION) | |
2842 | return ("DTLSv1"); | |
2843 | else if (s->version == DTLS1_2_VERSION) | |
2844 | return ("DTLSv1.2"); | |
ae5c8664 MC |
2845 | else |
2846 | return ("unknown"); | |
2847 | } | |
d02b48c6 | 2848 | |
4f43d0e7 | 2849 | SSL *SSL_dup(SSL *s) |
ae5c8664 MC |
2850 | { |
2851 | STACK_OF(X509_NAME) *sk; | |
2852 | X509_NAME *xn; | |
2853 | SSL *ret; | |
2854 | int i; | |
2855 | ||
2856 | if ((ret = SSL_new(SSL_get_SSL_CTX(s))) == NULL) | |
2857 | return (NULL); | |
2858 | ||
2859 | ret->version = s->version; | |
2860 | ret->type = s->type; | |
2861 | ret->method = s->method; | |
2862 | ||
2863 | if (s->session != NULL) { | |
2864 | /* This copies session-id, SSL_METHOD, sid_ctx, and 'cert' */ | |
2865 | SSL_copy_session_id(ret, s); | |
2866 | } else { | |
2867 | /* | |
2868 | * No session has been established yet, so we have to expect that | |
2869 | * s->cert or ret->cert will be changed later -- they should not both | |
2870 | * point to the same object, and thus we can't use | |
2871 | * SSL_copy_session_id. | |
2872 | */ | |
2873 | ||
2874 | ret->method->ssl_free(ret); | |
2875 | ret->method = s->method; | |
2876 | ret->method->ssl_new(ret); | |
2877 | ||
2878 | if (s->cert != NULL) { | |
2879 | if (ret->cert != NULL) { | |
2880 | ssl_cert_free(ret->cert); | |
2881 | } | |
2882 | ret->cert = ssl_cert_dup(s->cert); | |
2883 | if (ret->cert == NULL) | |
2884 | goto err; | |
2885 | } | |
2886 | ||
2887 | SSL_set_session_id_context(ret, s->sid_ctx, s->sid_ctx_length); | |
2888 | } | |
2889 | ||
2890 | ret->options = s->options; | |
2891 | ret->mode = s->mode; | |
2892 | SSL_set_max_cert_list(ret, SSL_get_max_cert_list(s)); | |
2893 | SSL_set_read_ahead(ret, SSL_get_read_ahead(s)); | |
2894 | ret->msg_callback = s->msg_callback; | |
2895 | ret->msg_callback_arg = s->msg_callback_arg; | |
2896 | SSL_set_verify(ret, SSL_get_verify_mode(s), SSL_get_verify_callback(s)); | |
2897 | SSL_set_verify_depth(ret, SSL_get_verify_depth(s)); | |
2898 | ret->generate_session_id = s->generate_session_id; | |
2899 | ||
2900 | SSL_set_info_callback(ret, SSL_get_info_callback(s)); | |
2901 | ||
2902 | ret->debug = s->debug; | |
2903 | ||
2904 | /* copy app data, a little dangerous perhaps */ | |
2905 | if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL, &ret->ex_data, &s->ex_data)) | |
2906 | goto err; | |
2907 | ||
2908 | /* setup rbio, and wbio */ | |
2909 | if (s->rbio != NULL) { | |
2910 | if (!BIO_dup_state(s->rbio, (char *)&ret->rbio)) | |
2911 | goto err; | |
2912 | } | |
2913 | if (s->wbio != NULL) { | |
2914 | if (s->wbio != s->rbio) { | |
2915 | if (!BIO_dup_state(s->wbio, (char *)&ret->wbio)) | |
2916 | goto err; | |
2917 | } else | |
2918 | ret->wbio = ret->rbio; | |
2919 | } | |
2920 | ret->rwstate = s->rwstate; | |
2921 | ret->in_handshake = s->in_handshake; | |
2922 | ret->handshake_func = s->handshake_func; | |
2923 | ret->server = s->server; | |
2924 | ret->renegotiate = s->renegotiate; | |
2925 | ret->new_session = s->new_session; | |
2926 | ret->quiet_shutdown = s->quiet_shutdown; | |
2927 | ret->shutdown = s->shutdown; | |
2928 | ret->state = s->state; /* SSL_dup does not really work at any state, | |
2929 | * though */ | |
2930 | ret->rstate = s->rstate; | |
2931 | ret->init_num = 0; /* would have to copy ret->init_buf, | |
2932 | * ret->init_msg, ret->init_num, | |
2933 | * ret->init_off */ | |
2934 | ret->hit = s->hit; | |
2935 | ||
2936 | X509_VERIFY_PARAM_inherit(ret->param, s->param); | |
2937 | ||
2938 | /* dup the cipher_list and cipher_list_by_id stacks */ | |
2939 | if (s->cipher_list != NULL) { | |
2940 | if ((ret->cipher_list = sk_SSL_CIPHER_dup(s->cipher_list)) == NULL) | |
2941 | goto err; | |
2942 | } | |
2943 | if (s->cipher_list_by_id != NULL) | |
2944 | if ((ret->cipher_list_by_id = sk_SSL_CIPHER_dup(s->cipher_list_by_id)) | |
2945 | == NULL) | |
2946 | goto err; | |
2947 | ||
2948 | /* Dup the client_CA list */ | |
2949 | if (s->client_CA != NULL) { | |
2950 | if ((sk = sk_X509_NAME_dup(s->client_CA)) == NULL) | |
2951 | goto err; | |
2952 | ret->client_CA = sk; | |
2953 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { | |
2954 | xn = sk_X509_NAME_value(sk, i); | |
2955 | if (sk_X509_NAME_set(sk, i, X509_NAME_dup(xn)) == NULL) { | |
2956 | X509_NAME_free(xn); | |
2957 | goto err; | |
2958 | } | |
2959 | } | |
2960 | } | |
2961 | ||
2962 | if (0) { | |
2963 | err: | |
2964 | if (ret != NULL) | |
2965 | SSL_free(ret); | |
2966 | ret = NULL; | |
2967 | } | |
2968 | return (ret); | |
2969 | } | |
d02b48c6 | 2970 | |
4f43d0e7 | 2971 | void ssl_clear_cipher_ctx(SSL *s) |
ae5c8664 MC |
2972 | { |
2973 | if (s->enc_read_ctx != NULL) { | |
2974 | EVP_CIPHER_CTX_cleanup(s->enc_read_ctx); | |
2975 | OPENSSL_free(s->enc_read_ctx); | |
2976 | s->enc_read_ctx = NULL; | |
2977 | } | |
2978 | if (s->enc_write_ctx != NULL) { | |
2979 | EVP_CIPHER_CTX_cleanup(s->enc_write_ctx); | |
2980 | OPENSSL_free(s->enc_write_ctx); | |
2981 | s->enc_write_ctx = NULL; | |
2982 | } | |
09b6c2ef | 2983 | #ifndef OPENSSL_NO_COMP |
ae5c8664 MC |
2984 | if (s->expand != NULL) { |
2985 | COMP_CTX_free(s->expand); | |
2986 | s->expand = NULL; | |
2987 | } | |
2988 | if (s->compress != NULL) { | |
2989 | COMP_CTX_free(s->compress); | |
2990 | s->compress = NULL; | |
2991 | } | |
2992 | #endif | |
2993 | } | |
d02b48c6 | 2994 | |
0821bcd4 | 2995 | X509 *SSL_get_certificate(const SSL *s) |
ae5c8664 MC |
2996 | { |
2997 | if (s->cert != NULL) | |
2998 | return (s->cert->key->x509); | |
2999 | else | |
3000 | return (NULL); | |
3001 | } | |
d02b48c6 | 3002 | |
2a1b7bd3 | 3003 | EVP_PKEY *SSL_get_privatekey(const SSL *s) |
ae5c8664 MC |
3004 | { |
3005 | if (s->cert != NULL) | |
3006 | return (s->cert->key->privatekey); | |
3007 | else | |
3008 | return (NULL); | |
3009 | } | |
d02b48c6 | 3010 | |
2a1b7bd3 | 3011 | X509 *SSL_CTX_get0_certificate(const SSL_CTX *ctx) |
ae5c8664 MC |
3012 | { |
3013 | if (ctx->cert != NULL) | |
3014 | return ctx->cert->key->x509; | |
3015 | else | |
3016 | return NULL; | |
3017 | } | |
2a1b7bd3 DSH |
3018 | |
3019 | EVP_PKEY *SSL_CTX_get0_privatekey(const SSL_CTX *ctx) | |
ae5c8664 MC |
3020 | { |
3021 | if (ctx->cert != NULL) | |
3022 | return ctx->cert->key->privatekey; | |
3023 | else | |
3024 | return NULL; | |
3025 | } | |
2a1b7bd3 | 3026 | |
babb3798 | 3027 | const SSL_CIPHER *SSL_get_current_cipher(const SSL *s) |
ae5c8664 MC |
3028 | { |
3029 | if ((s->session != NULL) && (s->session->cipher != NULL)) | |
3030 | return (s->session->cipher); | |
3031 | return (NULL); | |
3032 | } | |
3033 | ||
09b6c2ef DSH |
3034 | #ifdef OPENSSL_NO_COMP |
3035 | const void *SSL_get_current_compression(SSL *s) | |
ae5c8664 MC |
3036 | { |
3037 | return NULL; | |
3038 | } | |
3039 | ||
09b6c2ef | 3040 | const void *SSL_get_current_expansion(SSL *s) |
ae5c8664 MC |
3041 | { |
3042 | return NULL; | |
3043 | } | |
09b6c2ef | 3044 | #else |
d02b48c6 | 3045 | |
377dcdba | 3046 | const COMP_METHOD *SSL_get_current_compression(SSL *s) |
ae5c8664 MC |
3047 | { |
3048 | if (s->compress != NULL) | |
3049 | return (s->compress->meth); | |
3050 | return (NULL); | |
3051 | } | |
377dcdba RL |
3052 | |
3053 | const COMP_METHOD *SSL_get_current_expansion(SSL *s) | |
ae5c8664 MC |
3054 | { |
3055 | if (s->expand != NULL) | |
3056 | return (s->expand->meth); | |
3057 | return (NULL); | |
3058 | } | |
3059 | #endif | |
3060 | ||
3061 | int ssl_init_wbio_buffer(SSL *s, int push) | |
3062 | { | |
3063 | BIO *bbio; | |
3064 | ||
3065 | if (s->bbio == NULL) { | |
3066 | bbio = BIO_new(BIO_f_buffer()); | |
3067 | if (bbio == NULL) | |
3068 | return (0); | |
3069 | s->bbio = bbio; | |
3070 | } else { | |
3071 | bbio = s->bbio; | |
3072 | if (s->bbio == s->wbio) | |
3073 | s->wbio = BIO_pop(s->wbio); | |
3074 | } | |
3075 | (void)BIO_reset(bbio); | |
3076 | /* if (!BIO_set_write_buffer_size(bbio,16*1024)) */ | |
3077 | if (!BIO_set_read_buffer_size(bbio, 1)) { | |
3078 | SSLerr(SSL_F_SSL_INIT_WBIO_BUFFER, ERR_R_BUF_LIB); | |
3079 | return (0); | |
3080 | } | |
3081 | if (push) { | |
3082 | if (s->wbio != bbio) | |
3083 | s->wbio = BIO_push(bbio, s->wbio); | |
3084 | } else { | |
3085 | if (s->wbio == bbio) | |
3086 | s->wbio = BIO_pop(bbio); | |
3087 | } | |
3088 | return (1); | |
3089 | } | |
413c4f45 | 3090 | |
4f43d0e7 | 3091 | void ssl_free_wbio_buffer(SSL *s) |
ae5c8664 MC |
3092 | { |
3093 | if (s->bbio == NULL) | |
3094 | return; | |
3095 | ||
3096 | if (s->bbio == s->wbio) { | |
3097 | /* remove buffering */ | |
3098 | s->wbio = BIO_pop(s->wbio); | |
3099 | #ifdef REF_CHECK /* not the usual REF_CHECK, but this avoids | |
3100 | * adding one more preprocessor symbol */ | |
3101 | assert(s->wbio != NULL); | |
3102 | #endif | |
3103 | } | |
3104 | BIO_free(s->bbio); | |
3105 | s->bbio = NULL; | |
3106 | } | |
3107 | ||
3108 | void SSL_CTX_set_quiet_shutdown(SSL_CTX *ctx, int mode) | |
3109 | { | |
3110 | ctx->quiet_shutdown = mode; | |
3111 | } | |
58964a49 | 3112 | |
0821bcd4 | 3113 | int SSL_CTX_get_quiet_shutdown(const SSL_CTX *ctx) |
ae5c8664 MC |
3114 | { |
3115 | return (ctx->quiet_shutdown); | |
3116 | } | |
58964a49 | 3117 | |
ae5c8664 MC |
3118 | void SSL_set_quiet_shutdown(SSL *s, int mode) |
3119 | { | |
3120 | s->quiet_shutdown = mode; | |
3121 | } | |
58964a49 | 3122 | |
0821bcd4 | 3123 | int SSL_get_quiet_shutdown(const SSL *s) |
ae5c8664 MC |
3124 | { |
3125 | return (s->quiet_shutdown); | |
3126 | } | |
58964a49 | 3127 | |
ae5c8664 MC |
3128 | void SSL_set_shutdown(SSL *s, int mode) |
3129 | { | |
3130 | s->shutdown = mode; | |
3131 | } | |
58964a49 | 3132 | |
0821bcd4 | 3133 | int SSL_get_shutdown(const SSL *s) |
ae5c8664 MC |
3134 | { |
3135 | return (s->shutdown); | |
3136 | } | |
58964a49 | 3137 | |
0821bcd4 | 3138 | int SSL_version(const SSL *s) |
ae5c8664 MC |
3139 | { |
3140 | return (s->version); | |
3141 | } | |
58964a49 | 3142 | |
0821bcd4 | 3143 | SSL_CTX *SSL_get_SSL_CTX(const SSL *ssl) |
ae5c8664 MC |
3144 | { |
3145 | return (ssl->ctx); | |
3146 | } | |
3147 | ||
3148 | SSL_CTX *SSL_set_SSL_CTX(SSL *ssl, SSL_CTX *ctx) | |
3149 | { | |
3150 | CERT *ocert = ssl->cert; | |
3151 | if (ssl->ctx == ctx) | |
3152 | return ssl->ctx; | |
367eb1f1 | 3153 | #ifndef OPENSSL_NO_TLSEXT |
ae5c8664 MC |
3154 | if (ctx == NULL) |
3155 | ctx = ssl->initial_ctx; | |
3156 | #endif | |
3157 | ssl->cert = ssl_cert_dup(ctx->cert); | |
3158 | if (ocert) { | |
3159 | /* Preserve any already negotiated parameters */ | |
3160 | if (ssl->server) { | |
3161 | ssl->cert->peer_sigalgs = ocert->peer_sigalgs; | |
3162 | ssl->cert->peer_sigalgslen = ocert->peer_sigalgslen; | |
3163 | ocert->peer_sigalgs = NULL; | |
3164 | ssl->cert->ciphers_raw = ocert->ciphers_raw; | |
3165 | ssl->cert->ciphers_rawlen = ocert->ciphers_rawlen; | |
3166 | ocert->ciphers_raw = NULL; | |
3167 | } | |
3168 | ssl_cert_free(ocert); | |
3169 | } | |
3170 | ||
3171 | /* | |
3172 | * Program invariant: |sid_ctx| has fixed size (SSL_MAX_SID_CTX_LENGTH), | |
3173 | * so setter APIs must prevent invalid lengths from entering the system. | |
3174 | */ | |
3175 | OPENSSL_assert(ssl->sid_ctx_length <= sizeof(ssl->sid_ctx)); | |
3176 | ||
3177 | /* | |
3178 | * If the session ID context matches that of the parent SSL_CTX, | |
3179 | * inherit it from the new SSL_CTX as well. If however the context does | |
3180 | * not match (i.e., it was set per-ssl with SSL_set_session_id_context), | |
3181 | * leave it unchanged. | |
3182 | */ | |
3183 | if ((ssl->ctx != NULL) && | |
3184 | (ssl->sid_ctx_length == ssl->ctx->sid_ctx_length) && | |
3185 | (memcmp(ssl->sid_ctx, ssl->ctx->sid_ctx, ssl->sid_ctx_length) == 0)) { | |
3186 | ssl->sid_ctx_length = ctx->sid_ctx_length; | |
3187 | memcpy(&ssl->sid_ctx, &ctx->sid_ctx, sizeof(ssl->sid_ctx)); | |
3188 | } | |
3189 | ||
3190 | CRYPTO_add(&ctx->references, 1, CRYPTO_LOCK_SSL_CTX); | |
3191 | if (ssl->ctx != NULL) | |
3192 | SSL_CTX_free(ssl->ctx); /* decrement reference count */ | |
3193 | ssl->ctx = ctx; | |
3194 | ||
3195 | return (ssl->ctx); | |
3196 | } | |
ed3883d2 | 3197 | |
bc36ee62 | 3198 | #ifndef OPENSSL_NO_STDIO |
4f43d0e7 | 3199 | int SSL_CTX_set_default_verify_paths(SSL_CTX *ctx) |
ae5c8664 MC |
3200 | { |
3201 | return (X509_STORE_set_default_paths(ctx->cert_store)); | |
3202 | } | |
58964a49 | 3203 | |
303c0028 | 3204 | int SSL_CTX_load_verify_locations(SSL_CTX *ctx, const char *CAfile, |
ae5c8664 MC |
3205 | const char *CApath) |
3206 | { | |
3207 | return (X509_STORE_load_locations(ctx->cert_store, CAfile, CApath)); | |
3208 | } | |
dfeab068 | 3209 | #endif |
58964a49 | 3210 | |
45d87a1f | 3211 | void SSL_set_info_callback(SSL *ssl, |
ae5c8664 MC |
3212 | void (*cb) (const SSL *ssl, int type, int val)) |
3213 | { | |
3214 | ssl->info_callback = cb; | |
3215 | } | |
3216 | ||
3217 | /* | |
3218 | * One compiler (Diab DCC) doesn't like argument names in returned function | |
3219 | * pointer. | |
3220 | */ | |
3221 | void (*SSL_get_info_callback(const SSL *ssl)) (const SSL * /* ssl */ , | |
3222 | int /* type */ , | |
3223 | int /* val */ ) { | |
3224 | return ssl->info_callback; | |
3225 | } | |
58964a49 | 3226 | |
0821bcd4 | 3227 | int SSL_state(const SSL *ssl) |
ae5c8664 MC |
3228 | { |
3229 | return (ssl->state); | |
3230 | } | |
58964a49 | 3231 | |
74096890 | 3232 | void SSL_set_state(SSL *ssl, int state) |
ae5c8664 MC |
3233 | { |
3234 | ssl->state = state; | |
3235 | } | |
74096890 | 3236 | |
ae5c8664 MC |
3237 | void SSL_set_verify_result(SSL *ssl, long arg) |
3238 | { | |
3239 | ssl->verify_result = arg; | |
3240 | } | |
58964a49 | 3241 | |
0821bcd4 | 3242 | long SSL_get_verify_result(const SSL *ssl) |
ae5c8664 MC |
3243 | { |
3244 | return (ssl->verify_result); | |
3245 | } | |
3246 | ||
3247 | int SSL_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, | |
3248 | CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) | |
3249 | { | |
3250 | return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL, argl, argp, | |
3251 | new_func, dup_func, free_func); | |
3252 | } | |
3253 | ||
3254 | int SSL_set_ex_data(SSL *s, int idx, void *arg) | |
3255 | { | |
3256 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3257 | } | |
3258 | ||
3259 | void *SSL_get_ex_data(const SSL *s, int idx) | |
3260 | { | |
3261 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3262 | } | |
3263 | ||
3264 | int SSL_CTX_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, | |
3265 | CRYPTO_EX_dup *dup_func, | |
3266 | CRYPTO_EX_free *free_func) | |
3267 | { | |
3268 | return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_SSL_CTX, argl, argp, | |
3269 | new_func, dup_func, free_func); | |
3270 | } | |
3271 | ||
3272 | int SSL_CTX_set_ex_data(SSL_CTX *s, int idx, void *arg) | |
3273 | { | |
3274 | return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); | |
3275 | } | |
3276 | ||
3277 | void *SSL_CTX_get_ex_data(const SSL_CTX *s, int idx) | |
3278 | { | |
3279 | return (CRYPTO_get_ex_data(&s->ex_data, idx)); | |
3280 | } | |
58964a49 | 3281 | |
4f43d0e7 | 3282 | int ssl_ok(SSL *s) |
ae5c8664 MC |
3283 | { |
3284 | return (1); | |
3285 | } | |
dfeab068 | 3286 | |
0821bcd4 | 3287 | X509_STORE *SSL_CTX_get_cert_store(const SSL_CTX *ctx) |
ae5c8664 MC |
3288 | { |
3289 | return (ctx->cert_store); | |
3290 | } | |
413c4f45 | 3291 | |
ae5c8664 MC |
3292 | void SSL_CTX_set_cert_store(SSL_CTX *ctx, X509_STORE *store) |
3293 | { | |
3294 | if (ctx->cert_store != NULL) | |
3295 | X509_STORE_free(ctx->cert_store); | |
3296 | ctx->cert_store = store; | |
3297 | } | |
413c4f45 | 3298 | |
0821bcd4 | 3299 | int SSL_want(const SSL *s) |
ae5c8664 MC |
3300 | { |
3301 | return (s->rwstate); | |
3302 | } | |
413c4f45 | 3303 | |
ae5c8664 | 3304 | /** |
4f43d0e7 BL |
3305 | * \brief Set the callback for generating temporary RSA keys. |
3306 | * \param ctx the SSL context. | |
3307 | * \param cb the callback | |
3308 | */ | |
3309 | ||
bc36ee62 | 3310 | #ifndef OPENSSL_NO_RSA |
ae5c8664 MC |
3311 | void SSL_CTX_set_tmp_rsa_callback(SSL_CTX *ctx, RSA *(*cb) (SSL *ssl, |
3312 | int is_export, | |
3313 | int keylength)) | |
3314 | { | |
3315 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb); | |
3316 | } | |
79df9d62 | 3317 | |
ae5c8664 MC |
3318 | void SSL_set_tmp_rsa_callback(SSL *ssl, RSA *(*cb) (SSL *ssl, |
3319 | int is_export, | |
3320 | int keylength)) | |
3321 | { | |
3322 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_RSA_CB, (void (*)(void))cb); | |
3323 | } | |
79df9d62 | 3324 | #endif |
f8c3c05d | 3325 | |
4f43d0e7 | 3326 | #ifdef DOXYGEN |
ae5c8664 | 3327 | /** |
4f43d0e7 BL |
3328 | * \brief The RSA temporary key callback function. |
3329 | * \param ssl the SSL session. | |
df63a389 UM |
3330 | * \param is_export \c TRUE if the temp RSA key is for an export ciphersuite. |
3331 | * \param keylength if \c is_export is \c TRUE, then \c keylength is the size | |
3332 | * of the required key in bits. | |
4f43d0e7 BL |
3333 | * \return the temporary RSA key. |
3334 | * \sa SSL_CTX_set_tmp_rsa_callback, SSL_set_tmp_rsa_callback | |
3335 | */ | |
3336 | ||
ae5c8664 MC |
3337 | RSA *cb(SSL *ssl, int is_export, int keylength) |
3338 | { | |
3339 | } | |
4f43d0e7 BL |
3340 | #endif |
3341 | ||
ae5c8664 | 3342 | /** |
4f43d0e7 BL |
3343 | * \brief Set the callback for generating temporary DH keys. |
3344 | * \param ctx the SSL context. | |
3345 | * \param dh the callback | |
3346 | */ | |
3347 | ||
bc36ee62 | 3348 | #ifndef OPENSSL_NO_DH |
ae5c8664 MC |
3349 | void SSL_CTX_set_tmp_dh_callback(SSL_CTX *ctx, |
3350 | DH *(*dh) (SSL *ssl, int is_export, | |
3351 | int keylength)) | |
3352 | { | |
3353 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3354 | } | |
f8c3c05d | 3355 | |
ae5c8664 MC |
3356 | void SSL_set_tmp_dh_callback(SSL *ssl, DH *(*dh) (SSL *ssl, int is_export, |
3357 | int keylength)) | |
3358 | { | |
3359 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_DH_CB, (void (*)(void))dh); | |
3360 | } | |
79df9d62 | 3361 | #endif |
15d21c2d | 3362 | |
ea262260 | 3363 | #ifndef OPENSSL_NO_ECDH |
ae5c8664 MC |
3364 | void SSL_CTX_set_tmp_ecdh_callback(SSL_CTX *ctx, |
3365 | EC_KEY *(*ecdh) (SSL *ssl, int is_export, | |
3366 | int keylength)) | |
3367 | { | |
3368 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_TMP_ECDH_CB, | |
3369 | (void (*)(void))ecdh); | |
3370 | } | |
ea262260 | 3371 | |
ae5c8664 MC |
3372 | void SSL_set_tmp_ecdh_callback(SSL *ssl, |
3373 | EC_KEY *(*ecdh) (SSL *ssl, int is_export, | |
3374 | int keylength)) | |
3375 | { | |
3376 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_TMP_ECDH_CB, (void (*)(void))ecdh); | |
3377 | } | |
ea262260 BM |
3378 | #endif |
3379 | ||
ddac1974 NL |
3380 | #ifndef OPENSSL_NO_PSK |
3381 | int SSL_CTX_use_psk_identity_hint(SSL_CTX *ctx, const char *identity_hint) | |
ae5c8664 MC |
3382 | { |
3383 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
3384 | SSLerr(SSL_F_SSL_CTX_USE_PSK_IDENTITY_HINT, | |
3385 | SSL_R_DATA_LENGTH_TOO_LONG); | |
3386 | return 0; | |
3387 | } | |
3388 | if (ctx->psk_identity_hint != NULL) | |
3389 | OPENSSL_free(ctx->psk_identity_hint); | |
3390 | if (identity_hint != NULL) { | |
3391 | ctx->psk_identity_hint = BUF_strdup(identity_hint); | |
3392 | if (ctx->psk_identity_hint == NULL) | |
3393 | return 0; | |
3394 | } else | |
3395 | ctx->psk_identity_hint = NULL; | |
3396 | return 1; | |
3397 | } | |
ddac1974 NL |
3398 | |
3399 | int SSL_use_psk_identity_hint(SSL *s, const char *identity_hint) | |
ae5c8664 MC |
3400 | { |
3401 | if (s == NULL) | |
3402 | return 0; | |
3403 | ||
3404 | if (s->session == NULL) | |
3405 | return 1; /* session not created yet, ignored */ | |
3406 | ||
3407 | if (identity_hint != NULL && strlen(identity_hint) > PSK_MAX_IDENTITY_LEN) { | |
3408 | SSLerr(SSL_F_SSL_USE_PSK_IDENTITY_HINT, SSL_R_DATA_LENGTH_TOO_LONG); | |
3409 | return 0; | |
3410 | } | |
3411 | if (s->session->psk_identity_hint != NULL) | |
3412 | OPENSSL_free(s->session->psk_identity_hint); | |
3413 | if (identity_hint != NULL) { | |
3414 | s->session->psk_identity_hint = BUF_strdup(identity_hint); | |
3415 | if (s->session->psk_identity_hint == NULL) | |
3416 | return 0; | |
3417 | } else | |
3418 | s->session->psk_identity_hint = NULL; | |
3419 | return 1; | |
3420 | } | |
ddac1974 NL |
3421 | |
3422 | const char *SSL_get_psk_identity_hint(const SSL *s) | |
ae5c8664 MC |
3423 | { |
3424 | if (s == NULL || s->session == NULL) | |
3425 | return NULL; | |
3426 | return (s->session->psk_identity_hint); | |
3427 | } | |
ddac1974 NL |
3428 | |
3429 | const char *SSL_get_psk_identity(const SSL *s) | |
ae5c8664 MC |
3430 | { |
3431 | if (s == NULL || s->session == NULL) | |
3432 | return NULL; | |
3433 | return (s->session->psk_identity); | |
3434 | } | |
7806f3dd | 3435 | |
52b8dad8 | 3436 | void SSL_set_psk_client_callback(SSL *s, |
ae5c8664 MC |
3437 | unsigned int (*cb) (SSL *ssl, |
3438 | const char *hint, | |
3439 | char *identity, | |
3440 | unsigned int | |
3441 | max_identity_len, | |
3442 | unsigned char *psk, | |
3443 | unsigned int | |
3444 | max_psk_len)) | |
3445 | { | |
3446 | s->psk_client_callback = cb; | |
3447 | } | |
7806f3dd NL |
3448 | |
3449 | void SSL_CTX_set_psk_client_callback(SSL_CTX *ctx, | |
ae5c8664 MC |
3450 | unsigned int (*cb) (SSL *ssl, |
3451 | const char *hint, | |
3452 | char *identity, | |
3453 | unsigned int | |
3454 | max_identity_len, | |
3455 | unsigned char *psk, | |
3456 | unsigned int | |
3457 | max_psk_len)) | |
3458 | { | |
3459 | ctx->psk_client_callback = cb; | |
3460 | } | |
7806f3dd | 3461 | |
52b8dad8 | 3462 | void SSL_set_psk_server_callback(SSL *s, |
ae5c8664 MC |
3463 | unsigned int (*cb) (SSL *ssl, |
3464 | const char *identity, | |
3465 | unsigned char *psk, | |
3466 | unsigned int | |
3467 | max_psk_len)) | |
3468 | { | |
3469 | s->psk_server_callback = cb; | |
3470 | } | |
7806f3dd NL |
3471 | |
3472 | void SSL_CTX_set_psk_server_callback(SSL_CTX *ctx, | |
ae5c8664 MC |
3473 | unsigned int (*cb) (SSL *ssl, |
3474 | const char *identity, | |
3475 | unsigned char *psk, | |
3476 | unsigned int | |
3477 | max_psk_len)) | |
3478 | { | |
3479 | ctx->psk_server_callback = cb; | |
3480 | } | |
3481 | #endif | |
3482 | ||
3483 | void SSL_CTX_set_msg_callback(SSL_CTX *ctx, | |
3484 | void (*cb) (int write_p, int version, | |
3485 | int content_type, const void *buf, | |
3486 | size_t len, SSL *ssl, void *arg)) | |
3487 | { | |
3488 | SSL_CTX_callback_ctrl(ctx, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3489 | } | |
3490 | ||
3491 | void SSL_set_msg_callback(SSL *ssl, | |
3492 | void (*cb) (int write_p, int version, | |
3493 | int content_type, const void *buf, | |
3494 | size_t len, SSL *ssl, void *arg)) | |
3495 | { | |
3496 | SSL_callback_ctrl(ssl, SSL_CTRL_SET_MSG_CALLBACK, (void (*)(void))cb); | |
3497 | } | |
3498 | ||
3499 | /* | |
3500 | * Allocates new EVP_MD_CTX and sets pointer to it into given pointer | |
3501 | * vairable, freeing EVP_MD_CTX previously stored in that variable, if any. | |
3502 | * If EVP_MD pointer is passed, initializes ctx with this md Returns newly | |
3503 | * allocated ctx; | |
8671b898 | 3504 | */ |
b948e2c5 | 3505 | |
ae5c8664 | 3506 | EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md) |
b948e2c5 | 3507 | { |
ae5c8664 MC |
3508 | ssl_clear_hash_ctx(hash); |
3509 | *hash = EVP_MD_CTX_create(); | |
3510 | if (md) | |
3511 | EVP_DigestInit_ex(*hash, md, NULL); | |
3512 | return *hash; | |
b948e2c5 | 3513 | } |
ae5c8664 MC |
3514 | |
3515 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash) | |
b948e2c5 DSH |
3516 | { |
3517 | ||
ae5c8664 MC |
3518 | if (*hash) |
3519 | EVP_MD_CTX_destroy(*hash); | |
3520 | *hash = NULL; | |
b948e2c5 | 3521 | } |
a661b653 | 3522 | |
74096890 | 3523 | void SSL_set_debug(SSL *s, int debug) |
ae5c8664 MC |
3524 | { |
3525 | s->debug = debug; | |
3526 | } | |
74096890 DSH |
3527 | |
3528 | int SSL_cache_hit(SSL *s) | |
ae5c8664 MC |
3529 | { |
3530 | return s->hit; | |
3531 | } | |
74096890 | 3532 | |
731abd3b | 3533 | int SSL_is_server(SSL *s) |
ae5c8664 MC |
3534 | { |
3535 | return s->server; | |
3536 | } | |
731abd3b | 3537 | |
bc36ee62 | 3538 | #if defined(_WINDLL) && defined(OPENSSL_SYS_WIN16) |
ae5c8664 | 3539 | # include "../crypto/bio/bss_file.c" |
58964a49 | 3540 | #endif |
f73e07cf BL |
3541 | |
3542 | IMPLEMENT_STACK_OF(SSL_CIPHER) | |
3543 | IMPLEMENT_STACK_OF(SSL_COMP) | |
ae5c8664 | 3544 | IMPLEMENT_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); |