1 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 2 * All rights reserved. 3 * 4 * This package is an SSL implementation written 5 * by Eric Young (eay (at) cryptsoft.com). 6 * The implementation was written so as to conform with Netscapes SSL. 7 * 8 * This library is free for commercial and non-commercial use as long as 9 * the following conditions are aheared to. The following conditions 10 * apply to all code found in this distribution, be it the RC4, RSA, 11 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 12 * included with this distribution is covered by the same copyright terms 13 * except that the holder is Tim Hudson (tjh (at) cryptsoft.com). 14 * 15 * Copyright remains Eric Young's, and as such any Copyright notices in 16 * the code are not to be removed. 17 * If this package is used in a product, Eric Young should be given attribution 18 * as the author of the parts of the library used. 19 * This can be in the form of a textual message at program startup or 20 * in documentation (online or textual) provided with the package. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 3. All advertising materials mentioning features or use of this software 31 * must display the following acknowledgement: 32 * "This product includes cryptographic software written by 33 * Eric Young (eay (at) cryptsoft.com)" 34 * The word 'cryptographic' can be left out if the rouines from the library 35 * being used are not cryptographic related :-). 36 * 4. If you include any Windows specific code (or a derivative thereof) from 37 * the apps directory (application code) you must include an acknowledgement: 38 * "This product includes software written by Tim Hudson (tjh (at) cryptsoft.com)" 39 * 40 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 41 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 43 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 44 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 45 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 46 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 48 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 49 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 50 * SUCH DAMAGE. 51 * 52 * The licence and distribution terms for any publically available version or 53 * derivative of this code cannot be changed. i.e. this code cannot simply be 54 * copied and put under another distribution licence 55 * [including the GNU Public Licence.] 56 */ 57 /* ==================================================================== 58 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved. 59 * 60 * Redistribution and use in source and binary forms, with or without 61 * modification, are permitted provided that the following conditions 62 * are met: 63 * 64 * 1. Redistributions of source code must retain the above copyright 65 * notice, this list of conditions and the following disclaimer. 66 * 67 * 2. Redistributions in binary form must reproduce the above copyright 68 * notice, this list of conditions and the following disclaimer in 69 * the documentation and/or other materials provided with the 70 * distribution. 71 * 72 * 3. All advertising materials mentioning features or use of this 73 * software must display the following acknowledgment: 74 * "This product includes software developed by the OpenSSL Project 75 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 76 * 77 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 78 * endorse or promote products derived from this software without 79 * prior written permission. For written permission, please contact 80 * openssl-core (at) openssl.org. 81 * 82 * 5. Products derived from this software may not be called "OpenSSL" 83 * nor may "OpenSSL" appear in their names without prior written 84 * permission of the OpenSSL Project. 85 * 86 * 6. Redistributions of any form whatsoever must retain the following 87 * acknowledgment: 88 * "This product includes software developed by the OpenSSL Project 89 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 90 * 91 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 92 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 93 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 94 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 95 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 96 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 97 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 98 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 99 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 100 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 101 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 102 * OF THE POSSIBILITY OF SUCH DAMAGE. 103 * ==================================================================== 104 * 105 * This product includes cryptographic software written by Eric Young 106 * (eay (at) cryptsoft.com). This product includes software written by Tim 107 * Hudson (tjh (at) cryptsoft.com). 108 * 109 */ 110 /* ==================================================================== 111 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 112 * ECC cipher suite support in OpenSSL originally developed by 113 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. 114 */ 115 /* ==================================================================== 116 * Copyright 2005 Nokia. All rights reserved. 117 * 118 * The portions of the attached software ("Contribution") is developed by 119 * Nokia Corporation and is licensed pursuant to the OpenSSL open source 120 * license. 121 * 122 * The Contribution, originally written by Mika Kousa and Pasi Eronen of 123 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites 124 * support (see RFC 4279) to OpenSSL. 125 * 126 * No patent licenses or other rights except those expressly stated in 127 * the OpenSSL open source license shall be deemed granted or received 128 * expressly, by implication, estoppel, or otherwise. 129 * 130 * No assurances are provided by Nokia that the Contribution does not 131 * infringe the patent or other intellectual property rights of any third 132 * party or that the license provides you with all the necessary rights 133 * to make use of the Contribution. 134 * 135 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN 136 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA 137 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY 138 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR 139 * OTHERWISE. 140 */ 141 142 #ifndef HEADER_SSL_LOCL_H 143 #define HEADER_SSL_LOCL_H 144 145 #include <openssl/base.h> 146 147 #include <errno.h> 148 #include <stdlib.h> 149 #include <string.h> 150 #include <time.h> 151 152 #include <openssl/aead.h> 153 #include <openssl/bio.h> 154 #include <openssl/buf.h> 155 #include <openssl/dsa.h> 156 #include <openssl/err.h> 157 #include <openssl/rsa.h> 158 #include <openssl/ssl.h> 159 #include <openssl/stack.h> 160 161 #define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \ 162 l|=(((unsigned long)(*((c)++)))<< 8), \ 163 l|=(((unsigned long)(*((c)++)))<<16), \ 164 l|=(((unsigned long)(*((c)++)))<<24)) 165 166 /* NOTE - c is not incremented as per c2l */ 167 #define c2ln(c,l1,l2,n) { \ 168 c+=n; \ 169 l1=l2=0; \ 170 switch (n) { \ 171 case 8: l2 =((unsigned long)(*(--(c))))<<24; \ 172 case 7: l2|=((unsigned long)(*(--(c))))<<16; \ 173 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \ 174 case 5: l2|=((unsigned long)(*(--(c)))); \ 175 case 4: l1 =((unsigned long)(*(--(c))))<<24; \ 176 case 3: l1|=((unsigned long)(*(--(c))))<<16; \ 177 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \ 178 case 1: l1|=((unsigned long)(*(--(c)))); \ 179 } \ 180 } 181 182 #define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ 183 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ 184 *((c)++)=(unsigned char)(((l)>>16)&0xff), \ 185 *((c)++)=(unsigned char)(((l)>>24)&0xff)) 186 187 #define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \ 188 l|=((unsigned long)(*((c)++)))<<16, \ 189 l|=((unsigned long)(*((c)++)))<< 8, \ 190 l|=((unsigned long)(*((c)++)))) 191 192 #define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \ 193 *((c)++)=(unsigned char)(((l)>>16)&0xff), \ 194 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ 195 *((c)++)=(unsigned char)(((l) )&0xff)) 196 197 #define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \ 198 *((c)++)=(unsigned char)(((l)>>32)&0xff), \ 199 *((c)++)=(unsigned char)(((l)>>24)&0xff), \ 200 *((c)++)=(unsigned char)(((l)>>16)&0xff), \ 201 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ 202 *((c)++)=(unsigned char)(((l) )&0xff)) 203 204 #define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \ 205 *((c)++)=(unsigned char)(((l)>>48)&0xff), \ 206 *((c)++)=(unsigned char)(((l)>>40)&0xff), \ 207 *((c)++)=(unsigned char)(((l)>>32)&0xff), \ 208 *((c)++)=(unsigned char)(((l)>>24)&0xff), \ 209 *((c)++)=(unsigned char)(((l)>>16)&0xff), \ 210 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ 211 *((c)++)=(unsigned char)(((l) )&0xff)) 212 213 #define n2l6(c,l) (l =((BN_ULLONG)(*((c)++)))<<40, \ 214 l|=((BN_ULLONG)(*((c)++)))<<32, \ 215 l|=((BN_ULLONG)(*((c)++)))<<24, \ 216 l|=((BN_ULLONG)(*((c)++)))<<16, \ 217 l|=((BN_ULLONG)(*((c)++)))<< 8, \ 218 l|=((BN_ULLONG)(*((c)++)))) 219 220 /* NOTE - c is not incremented as per l2c */ 221 #define l2cn(l1,l2,c,n) { \ 222 c+=n; \ 223 switch (n) { \ 224 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \ 225 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \ 226 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \ 227 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ 228 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \ 229 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \ 230 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \ 231 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ 232 } \ 233 } 234 235 #define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \ 236 (((unsigned int)(c[1])) )),c+=2) 237 #define s2n(s,c) ((c[0]=(unsigned char)(((s)>> 8)&0xff), \ 238 c[1]=(unsigned char)(((s) )&0xff)),c+=2) 239 240 #define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \ 241 (((unsigned long)(c[1]))<< 8)| \ 242 (((unsigned long)(c[2])) )),c+=3) 243 244 #define l2n3(l,c) ((c[0]=(unsigned char)(((l)>>16)&0xff), \ 245 c[1]=(unsigned char)(((l)>> 8)&0xff), \ 246 c[2]=(unsigned char)(((l) )&0xff)),c+=3) 247 248 /* LOCAL STUFF */ 249 250 #define SSL_DECRYPT 0 251 #define SSL_ENCRYPT 1 252 253 #define TWO_BYTE_BIT 0x80 254 #define SEC_ESC_BIT 0x40 255 #define TWO_BYTE_MASK 0x7fff 256 #define THREE_BYTE_MASK 0x3fff 257 258 #define INC32(a) ((a)=((a)+1)&0xffffffffL) 259 #define DEC32(a) ((a)=((a)-1)&0xffffffffL) 260 #define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */ 261 262 /* 263 * Define the Bitmasks for SSL_CIPHER.algorithms. 264 * This bits are used packed as dense as possible. If new methods/ciphers 265 * etc will be added, the bits a likely to change, so this information 266 * is for internal library use only, even though SSL_CIPHER.algorithms 267 * can be publicly accessed. 268 * Use the according functions for cipher management instead. 269 * 270 * The bit mask handling in the selection and sorting scheme in 271 * ssl_create_cipher_list() has only limited capabilities, reflecting 272 * that the different entities within are mutually exclusive: 273 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME. 274 */ 275 276 /* Bits for algorithm_mkey (key exchange algorithm) */ 277 #define SSL_kRSA 0x00000001L /* RSA key exchange */ 278 #define SSL_kEDH 0x00000002L /* tmp DH key no DH cert */ 279 #define SSL_kEECDH 0x00000004L /* ephemeral ECDH */ 280 #define SSL_kPSK 0x00000008L /* PSK */ 281 282 /* Bits for algorithm_auth (server authentication) */ 283 #define SSL_aRSA 0x00000001L /* RSA auth */ 284 #define SSL_aNULL 0x00000002L /* no auth (i.e. use ADH or AECDH) */ 285 #define SSL_aECDSA 0x00000004L /* ECDSA auth*/ 286 #define SSL_aPSK 0x00000008L /* PSK auth */ 287 288 289 /* Bits for algorithm_enc (symmetric encryption) */ 290 #define SSL_3DES 0x00000001L 291 #define SSL_RC4 0x00000002L 292 #define SSL_AES128 0x00000004L 293 #define SSL_AES256 0x00000008L 294 #define SSL_AES128GCM 0x00000010L 295 #define SSL_AES256GCM 0x00000020L 296 #define SSL_CHACHA20POLY1305 0x00000040L 297 298 #define SSL_AES (SSL_AES128|SSL_AES256|SSL_AES128GCM|SSL_AES256GCM) 299 300 301 /* Bits for algorithm_mac (symmetric authentication) */ 302 303 #define SSL_MD5 0x00000001L 304 #define SSL_SHA1 0x00000002L 305 #define SSL_SHA256 0x00000004L 306 #define SSL_SHA384 0x00000008L 307 /* Not a real MAC, just an indication it is part of cipher */ 308 #define SSL_AEAD 0x00000010L 309 310 /* Bits for algorithm_ssl (protocol version) */ 311 #define SSL_SSLV3 0x00000002L 312 #define SSL_TLSV1 SSL_SSLV3 /* for now */ 313 #define SSL_TLSV1_2 0x00000004L 314 315 316 /* Bits for algorithm2 (handshake digests and other extra flags) */ 317 318 #define SSL_HANDSHAKE_MAC_MD5 0x10 319 #define SSL_HANDSHAKE_MAC_SHA 0x20 320 #define SSL_HANDSHAKE_MAC_SHA256 0x40 321 #define SSL_HANDSHAKE_MAC_SHA384 0x80 322 #define SSL_HANDSHAKE_MAC_DEFAULT (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA) 323 324 /* When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX 325 * make sure to update this constant too */ 326 #define SSL_MAX_DIGEST 4 327 328 #define TLS1_PRF_DGST_MASK (0xff << TLS1_PRF_DGST_SHIFT) 329 330 #define TLS1_PRF_DGST_SHIFT 10 331 #define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT) 332 #define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT) 333 #define TLS1_PRF_SHA256 (SSL_HANDSHAKE_MAC_SHA256 << TLS1_PRF_DGST_SHIFT) 334 #define TLS1_PRF_SHA384 (SSL_HANDSHAKE_MAC_SHA384 << TLS1_PRF_DGST_SHIFT) 335 #define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1) 336 337 #define TLSEXT_CHANNEL_ID_SIZE 128 338 339 /* SSL_CIPHER_ALGORITHM2_AEAD is a flag in SSL_CIPHER.algorithm2 which 340 * indicates that the cipher is implemented via an EVP_AEAD. */ 341 #define SSL_CIPHER_ALGORITHM2_AEAD (1<<23) 342 343 /* SSL_CIPHER_AEAD_FIXED_NONCE_LEN returns the number of bytes of fixed nonce 344 * for an SSL_CIPHER* with the SSL_CIPHER_ALGORITHM2_AEAD flag. */ 345 #define SSL_CIPHER_AEAD_FIXED_NONCE_LEN(ssl_cipher) \ 346 (((ssl_cipher->algorithm2 >> 24) & 0xf)*2) 347 348 /* SSL_CIPHER_ALGORITHM2_VARIABLE_NONCE_INCLUDED_IN_RECORD is a flag in 349 * SSL_CIPHER.algorithm2 which indicates that the variable part of the nonce is 350 * included as a prefix of the record. (AES-GCM, for example, does with with an 351 * 8-byte variable nonce.) */ 352 #define SSL_CIPHER_ALGORITHM2_VARIABLE_NONCE_INCLUDED_IN_RECORD (1<<22) 353 354 /* SSL_CIPHER_ALGORITHM2_STATEFUL_AEAD is a flag in SSL_CIPHER.algorithm2 which 355 * indicates that the AEAD is stateful and so doesn't take an nonce. This is 356 * only true of legacy cipher suites. */ 357 #define SSL_CIPHER_ALGORITHM2_STATEFUL_AEAD (1<<28) 358 359 /* 360 * Cipher strength information. 361 */ 362 #define SSL_MEDIUM 0x00000001L 363 #define SSL_HIGH 0x00000002L 364 #define SSL_FIPS 0x00000004L 365 366 /* we have used 000001ff - 23 bits left to go */ 367 368 /* Check if an SSL structure is using DTLS */ 369 #define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) 370 /* See if we need explicit IV */ 371 #define SSL_USE_EXPLICIT_IV(s) \ 372 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV) 373 /* See if we use signature algorithms extension 374 * and signature algorithm before signatures. 375 */ 376 #define SSL_USE_SIGALGS(s) \ 377 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS) 378 /* Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: 379 * may apply to others in future. 380 */ 381 #define SSL_USE_TLS1_2_CIPHERS(s) \ 382 (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS) 383 /* Determine if a client can use TLS 1.2 ciphersuites: can't rely on method 384 * flags because it may not be set to correct version yet. 385 */ 386 #define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \ 387 ((SSL_IS_DTLS(s) && s->client_version <= DTLS1_2_VERSION) || \ 388 (!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION)) 389 390 /* Mostly for SSLv3 */ 391 #define SSL_PKEY_RSA_ENC 0 392 #define SSL_PKEY_RSA_SIGN 1 393 #define SSL_PKEY_ECC 2 394 #define SSL_PKEY_NUM 3 395 396 /* SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) | 397 * <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN) 398 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN) 399 * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN 400 * SSL_aRSA <- RSA_ENC | RSA_SIGN 401 * SSL_aDSS <- DSA_SIGN 402 */ 403 404 /* 405 #define CERT_INVALID 0 406 #define CERT_PUBLIC_KEY 1 407 #define CERT_PRIVATE_KEY 2 408 */ 409 410 #define PENDING_SESSION -10000 411 #define CERTIFICATE_SELECTION_PENDING -10001 412 413 /* From ECC-TLS draft, used in encoding the curve type in 414 * ECParameters 415 */ 416 #define EXPLICIT_PRIME_CURVE_TYPE 1 417 #define EXPLICIT_CHAR2_CURVE_TYPE 2 418 #define NAMED_CURVE_TYPE 3 419 420 /* Values for the |hash_message| parameter of |s->method->ssl_get_message|. */ 421 #define SSL_GET_MESSAGE_DONT_HASH_MESSAGE 0 422 #define SSL_GET_MESSAGE_HASH_MESSAGE 1 423 424 typedef struct cert_pkey_st 425 { 426 X509 *x509; 427 EVP_PKEY *privatekey; 428 /* Digest to use when signing */ 429 const EVP_MD *digest; 430 /* Chain for this certificate */ 431 STACK_OF(X509) *chain; 432 /* Set if CERT_PKEY can be used with current SSL session: e.g. 433 * appropriate curve, signature algorithms etc. If zero it can't be 434 * used at all. 435 */ 436 int valid_flags; 437 } CERT_PKEY; 438 439 #define SSL_CERT_FLAGS_CHECK_TLS_STRICT \ 440 SSL_CERT_FLAG_TLS_STRICT 441 442 typedef struct cert_st 443 { 444 /* Current active set */ 445 CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array 446 * Probably it would make more sense to store 447 * an index, not a pointer. */ 448 449 /* For servers the following masks are for the key and auth 450 * algorithms that are supported by the certs below. 451 * For clients they are masks of *disabled* algorithms based 452 * on the current session. 453 */ 454 int valid; 455 unsigned long mask_k; 456 unsigned long mask_a; 457 /* Client only */ 458 unsigned long mask_ssl; 459 DH *dh_tmp; 460 DH *(*dh_tmp_cb)(SSL *ssl,int is_export,int keysize); 461 EC_KEY *ecdh_tmp; 462 /* Callback for generating ephemeral ECDH keys */ 463 EC_KEY *(*ecdh_tmp_cb)(SSL *ssl,int is_export,int keysize); 464 /* Select ECDH parameters automatically */ 465 int ecdh_tmp_auto; 466 /* Flags related to certificates */ 467 unsigned int cert_flags; 468 CERT_PKEY pkeys[SSL_PKEY_NUM]; 469 470 /* Server-only: client_certificate_types is list of certificate types to 471 * include in the CertificateRequest message. 472 */ 473 unsigned char *client_certificate_types; 474 size_t num_client_certificate_types; 475 476 /* signature algorithms peer reports: e.g. supported signature 477 * algorithms extension for server or as part of a certificate 478 * request for client. 479 */ 480 unsigned char *peer_sigalgs; 481 /* Size of above array */ 482 size_t peer_sigalgslen; 483 /* suppported signature algorithms. 484 * When set on a client this is sent in the client hello as the 485 * supported signature algorithms extension. For servers 486 * it represents the signature algorithms we are willing to use. 487 */ 488 unsigned char *conf_sigalgs; 489 /* Size of above array */ 490 size_t conf_sigalgslen; 491 /* Client authentication signature algorithms, if not set then 492 * uses conf_sigalgs. On servers these will be the signature 493 * algorithms sent to the client in a cerificate request for TLS 1.2. 494 * On a client this represents the signature algortithms we are 495 * willing to use for client authentication. 496 */ 497 unsigned char *client_sigalgs; 498 /* Size of above array */ 499 size_t client_sigalgslen; 500 /* Signature algorithms shared by client and server: cached 501 * because these are used most often. 502 */ 503 TLS_SIGALGS *shared_sigalgs; 504 size_t shared_sigalgslen; 505 506 /* Certificate setup callback: if set is called whenever a 507 * certificate may be required (client or server). the callback 508 * can then examine any appropriate parameters and setup any 509 * certificates required. This allows advanced applications 510 * to select certificates on the fly: for example based on 511 * supported signature algorithms or curves. 512 */ 513 int (*cert_cb)(SSL *ssl, void *arg); 514 void *cert_cb_arg; 515 516 /* Optional X509_STORE for chain building or certificate validation 517 * If NULL the parent SSL_CTX store is used instead. 518 */ 519 X509_STORE *chain_store; 520 X509_STORE *verify_store; 521 522 /* Raw values of the cipher list from a client */ 523 unsigned char *ciphers_raw; 524 size_t ciphers_rawlen; 525 } CERT; 526 527 528 typedef struct sess_cert_st 529 { 530 STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */ 531 532 /* The 'peer_...' members are used only by clients. */ 533 int peer_cert_type; 534 535 CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never NULL!) */ 536 CERT_PKEY peer_pkeys[SSL_PKEY_NUM]; 537 /* Obviously we don't have the private keys of these, 538 * so maybe we shouldn't even use the CERT_PKEY type here. */ 539 540 RSA *peer_rsa_tmp; /* not used for SSL 2 */ 541 DH *peer_dh_tmp; /* not used for SSL 2 */ 542 EC_KEY *peer_ecdh_tmp; 543 } SESS_CERT; 544 /* Structure containing decoded values of signature algorithms extension */ 545 struct tls_sigalgs_st 546 { 547 /* NID of hash algorithm */ 548 int hash_nid; 549 /* NID of signature algorithm */ 550 int sign_nid; 551 /* Combined hash and signature NID */ 552 int signandhash_nid; 553 /* Raw values used in extension */ 554 unsigned char rsign; 555 unsigned char rhash; 556 }; 557 558 /*#define MAC_DEBUG */ 559 560 /*#define ERR_DEBUG */ 561 /*#define ABORT_DEBUG */ 562 /*#define PKT_DEBUG 1 */ 563 /*#define DES_DEBUG */ 564 /*#define DES_OFB_DEBUG */ 565 /*#define SSL_DEBUG */ 566 /*#define RSA_DEBUG */ 567 /*#define IDEA_DEBUG */ 568 569 #define FP_ICC (int (*)(const void *,const void *)) 570 571 /* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff 572 * It is a bit of a mess of functions, but hell, think of it as 573 * an opaque structure :-) */ 574 typedef struct ssl3_enc_method 575 { 576 int (*enc)(SSL *, int); 577 int (*mac)(SSL *, unsigned char *, int); 578 int (*setup_key_block)(SSL *); 579 int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int); 580 int (*change_cipher_state)(SSL *, int); 581 int (*final_finish_mac)(SSL *, const char *, int, unsigned char *); 582 int finish_mac_length; 583 int (*cert_verify_mac)(SSL *, int, unsigned char *); 584 const char *client_finished_label; 585 int client_finished_label_len; 586 const char *server_finished_label; 587 int server_finished_label_len; 588 int (*alert_value)(int); 589 int (*export_keying_material)(SSL *, unsigned char *, size_t, 590 const char *, size_t, 591 const unsigned char *, size_t, 592 int use_context); 593 /* Various flags indicating protocol version requirements */ 594 unsigned int enc_flags; 595 /* Handshake header length */ 596 unsigned int hhlen; 597 /* Set the handshake header */ 598 void (*set_handshake_header)(SSL *s, int type, unsigned long len); 599 /* Write out handshake message */ 600 int (*do_write)(SSL *s); 601 } SSL3_ENC_METHOD; 602 603 #define SSL_HM_HEADER_LENGTH(s) s->method->ssl3_enc->hhlen 604 #define ssl_handshake_start(s) \ 605 (((unsigned char *)s->init_buf->data) + s->method->ssl3_enc->hhlen) 606 #define ssl_set_handshake_header(s, htype, len) \ 607 s->method->ssl3_enc->set_handshake_header(s, htype, len) 608 #define ssl_do_write(s) s->method->ssl3_enc->do_write(s) 609 610 /* Values for enc_flags */ 611 612 /* Uses explicit IV for CBC mode */ 613 #define SSL_ENC_FLAG_EXPLICIT_IV 0x1 614 /* Uses signature algorithms extension */ 615 #define SSL_ENC_FLAG_SIGALGS 0x2 616 /* Uses SHA256 default PRF */ 617 #define SSL_ENC_FLAG_SHA256_PRF 0x4 618 /* Is DTLS */ 619 #define SSL_ENC_FLAG_DTLS 0x8 620 /* Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: 621 * may apply to others in future. 622 */ 623 #define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10 624 625 /* ssl_aead_ctx_st contains information about an AEAD that is being used to 626 * encrypt an SSL connection. */ 627 struct ssl_aead_ctx_st 628 { 629 EVP_AEAD_CTX ctx; 630 /* fixed_nonce contains any bytes of the nonce that are fixed for all 631 * records. */ 632 unsigned char fixed_nonce[8]; 633 unsigned char fixed_nonce_len, variable_nonce_len, tag_len; 634 /* variable_nonce_included_in_record is non-zero if the variable nonce 635 * for a record is included as a prefix before the ciphertext. */ 636 char variable_nonce_included_in_record; 637 }; 638 639 640 extern SSL3_ENC_METHOD ssl3_undef_enc_method; 641 extern const SSL_CIPHER ssl3_ciphers[]; 642 643 644 SSL_METHOD *ssl_bad_method(int ver); 645 646 extern SSL3_ENC_METHOD TLSv1_enc_data; 647 extern SSL3_ENC_METHOD TLSv1_1_enc_data; 648 extern SSL3_ENC_METHOD TLSv1_2_enc_data; 649 extern SSL3_ENC_METHOD SSLv3_enc_data; 650 extern SSL3_ENC_METHOD DTLSv1_enc_data; 651 extern SSL3_ENC_METHOD DTLSv1_2_enc_data; 652 653 #define IMPLEMENT_tls_meth_func(version, func_name, s_accept, s_connect, \ 654 s_get_meth, enc_data) \ 655 const SSL_METHOD *func_name(void) \ 656 { \ 657 static const SSL_METHOD func_name##_data= { \ 658 version, \ 659 ssl3_new, \ 660 ssl3_clear, \ 661 ssl3_free, \ 662 s_accept, \ 663 s_connect, \ 664 ssl3_read, \ 665 ssl3_peek, \ 666 ssl3_write, \ 667 ssl3_shutdown, \ 668 ssl3_renegotiate, \ 669 ssl3_renegotiate_check, \ 670 ssl3_get_message, \ 671 ssl3_read_bytes, \ 672 ssl3_write_bytes, \ 673 ssl3_dispatch_alert, \ 674 ssl3_ctrl, \ 675 ssl3_ctx_ctrl, \ 676 ssl3_pending, \ 677 ssl3_num_ciphers, \ 678 ssl3_get_cipher, \ 679 s_get_meth, \ 680 &enc_data, \ 681 ssl_undefined_void_function, \ 682 ssl3_callback_ctrl, \ 683 ssl3_ctx_callback_ctrl, \ 684 }; \ 685 return &func_name##_data; \ 686 } 687 688 #define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \ 689 const SSL_METHOD *func_name(void) \ 690 { \ 691 static const SSL_METHOD func_name##_data= { \ 692 SSL3_VERSION, \ 693 ssl3_new, \ 694 ssl3_clear, \ 695 ssl3_free, \ 696 s_accept, \ 697 s_connect, \ 698 ssl3_read, \ 699 ssl3_peek, \ 700 ssl3_write, \ 701 ssl3_shutdown, \ 702 ssl3_renegotiate, \ 703 ssl3_renegotiate_check, \ 704 ssl3_get_message, \ 705 ssl3_read_bytes, \ 706 ssl3_write_bytes, \ 707 ssl3_dispatch_alert, \ 708 ssl3_ctrl, \ 709 ssl3_ctx_ctrl, \ 710 ssl3_pending, \ 711 ssl3_num_ciphers, \ 712 ssl3_get_cipher, \ 713 s_get_meth, \ 714 &SSLv3_enc_data, \ 715 ssl_undefined_void_function, \ 716 ssl3_callback_ctrl, \ 717 ssl3_ctx_callback_ctrl, \ 718 }; \ 719 return &func_name##_data; \ 720 } 721 722 #define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \ 723 const SSL_METHOD *func_name(void) \ 724 { \ 725 static const SSL_METHOD func_name##_data= { \ 726 TLS1_2_VERSION, \ 727 ssl3_new, \ 728 ssl3_clear, \ 729 ssl3_free, \ 730 s_accept, \ 731 s_connect, \ 732 ssl23_read, \ 733 ssl23_peek, \ 734 ssl23_write, \ 735 ssl_undefined_function, \ 736 ssl_undefined_function, \ 737 ssl_ok, \ 738 ssl3_get_message, \ 739 ssl3_read_bytes, \ 740 ssl3_write_bytes, \ 741 ssl3_dispatch_alert, \ 742 ssl3_ctrl, \ 743 ssl3_ctx_ctrl, \ 744 ssl_undefined_const_function, \ 745 ssl3_num_ciphers, \ 746 ssl3_get_cipher, \ 747 s_get_meth, \ 748 &TLSv1_2_enc_data, \ 749 ssl_undefined_void_function, \ 750 ssl3_callback_ctrl, \ 751 ssl3_ctx_callback_ctrl, \ 752 }; \ 753 return &func_name##_data; \ 754 } 755 756 #define IMPLEMENT_dtls1_meth_func(version, func_name, s_accept, s_connect, \ 757 s_get_meth, enc_data) \ 758 const SSL_METHOD *func_name(void) \ 759 { \ 760 static const SSL_METHOD func_name##_data= { \ 761 version, \ 762 dtls1_new, \ 763 dtls1_clear, \ 764 dtls1_free, \ 765 s_accept, \ 766 s_connect, \ 767 ssl3_read, \ 768 ssl3_peek, \ 769 ssl3_write, \ 770 dtls1_shutdown, \ 771 ssl3_renegotiate, \ 772 ssl3_renegotiate_check, \ 773 dtls1_get_message, \ 774 dtls1_read_bytes, \ 775 dtls1_write_app_data_bytes, \ 776 dtls1_dispatch_alert, \ 777 dtls1_ctrl, \ 778 ssl3_ctx_ctrl, \ 779 ssl3_pending, \ 780 ssl3_num_ciphers, \ 781 dtls1_get_cipher, \ 782 s_get_meth, \ 783 &enc_data, \ 784 ssl_undefined_void_function, \ 785 ssl3_callback_ctrl, \ 786 ssl3_ctx_callback_ctrl, \ 787 }; \ 788 return &func_name##_data; \ 789 } 790 791 void ssl_clear_cipher_ctx(SSL *s); 792 int ssl_clear_bad_session(SSL *s); 793 CERT *ssl_cert_new(void); 794 CERT *ssl_cert_dup(CERT *cert); 795 void ssl_cert_set_default_md(CERT *cert); 796 int ssl_cert_inst(CERT **o); 797 void ssl_cert_clear_certs(CERT *c); 798 void ssl_cert_free(CERT *c); 799 SESS_CERT *ssl_sess_cert_new(void); 800 void ssl_sess_cert_free(SESS_CERT *sc); 801 int ssl_set_peer_cert_type(SESS_CERT *c, int type); 802 int ssl_get_prev_session(SSL *s, const struct ssl_early_callback_ctx *ctx); 803 int ssl_cipher_id_cmp(const void *in_a, const void *in_b); 804 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER **ap, const SSL_CIPHER **bp); 805 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s, const CBS *cbs, 806 STACK_OF(SSL_CIPHER) **skp); 807 int ssl_cipher_list_to_bytes(SSL *s, STACK_OF(SSL_CIPHER) *sk, unsigned char *p); 808 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth, 809 struct ssl_cipher_preference_list_st **pref, 810 STACK_OF(SSL_CIPHER) **sorted, 811 const char *rule_str, CERT *c); 812 struct ssl_cipher_preference_list_st* ssl_cipher_preference_list_dup( 813 struct ssl_cipher_preference_list_st *cipher_list); 814 void ssl_cipher_preference_list_free( 815 struct ssl_cipher_preference_list_st *cipher_list); 816 struct ssl_cipher_preference_list_st* ssl_cipher_preference_list_from_ciphers( 817 STACK_OF(SSL_CIPHER) *ciphers); 818 struct ssl_cipher_preference_list_st* ssl_get_cipher_preferences(SSL *s); 819 int ssl_cipher_get_evp_aead(const SSL_SESSION *s, const EVP_AEAD **aead); 820 int ssl_cipher_get_evp(const SSL_SESSION *s,const EVP_CIPHER **enc, 821 const EVP_MD **md,int *mac_pkey_type,int *mac_secret_size); 822 int ssl_cipher_get_mac(const SSL_SESSION *s, const EVP_MD **md, int *mac_pkey_type, int *mac_secret_size); 823 int ssl_get_handshake_digest(int i,long *mask,const EVP_MD **md); 824 int ssl_cipher_get_cert_index(const SSL_CIPHER *c); 825 int ssl_cipher_has_server_public_key(const SSL_CIPHER *cipher); 826 int ssl_cipher_requires_server_key_exchange(const SSL_CIPHER *cipher); 827 828 int ssl_cert_set0_chain(CERT *c, STACK_OF(X509) *chain); 829 int ssl_cert_set1_chain(CERT *c, STACK_OF(X509) *chain); 830 int ssl_cert_add0_chain_cert(CERT *c, X509 *x); 831 int ssl_cert_add1_chain_cert(CERT *c, X509 *x); 832 int ssl_cert_select_current(CERT *c, X509 *x); 833 void ssl_cert_set_cert_cb(CERT *c, int (*cb)(SSL *ssl, void *arg), void *arg); 834 835 int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk); 836 int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l); 837 int ssl_build_cert_chain(CERT *c, X509_STORE *chain_store, int flags); 838 int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref); 839 int ssl_undefined_function(SSL *s); 840 int ssl_undefined_void_function(void); 841 int ssl_undefined_const_function(const SSL *s); 842 CERT_PKEY *ssl_get_server_send_pkey(const SSL *s); 843 EVP_PKEY *ssl_get_sign_pkey(SSL *s,const SSL_CIPHER *c, const EVP_MD **pmd); 844 int ssl_cert_type(X509 *x,EVP_PKEY *pkey); 845 void ssl_set_cert_masks(CERT *c, const SSL_CIPHER *cipher); 846 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s); 847 int ssl_verify_alarm_type(long type); 848 int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, int len); 849 850 const SSL_CIPHER *ssl3_get_cipher_by_value(uint16_t value); 851 uint16_t ssl3_get_cipher_value(const SSL_CIPHER *c); 852 void ssl3_init_finished_mac(SSL *s); 853 int ssl3_send_server_certificate(SSL *s); 854 int ssl3_send_new_session_ticket(SSL *s); 855 int ssl3_send_cert_status(SSL *s); 856 int ssl3_get_finished(SSL *s,int state_a,int state_b); 857 int ssl3_setup_key_block(SSL *s); 858 int ssl3_send_change_cipher_spec(SSL *s,int state_a,int state_b); 859 int ssl3_change_cipher_state(SSL *s,int which); 860 void ssl3_cleanup_key_block(SSL *s); 861 int ssl3_do_write(SSL *s,int type); 862 int ssl3_send_alert(SSL *s,int level, int desc); 863 int ssl3_generate_master_secret(SSL *s, unsigned char *out, 864 unsigned char *p, int len); 865 int ssl3_get_req_cert_type(SSL *s,unsigned char *p); 866 long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int hash_message, int *ok); 867 868 /* ssl3_hash_current_message incorporates the current handshake message into 869 * the handshake hash. */ 870 void ssl3_hash_current_message(SSL *s); 871 872 /* ssl3_cert_verify_hash writes the CertificateVerify hash into the bytes 873 * pointed to by |out| and writes the number of bytes to |*out_len|. |out| must 874 * have room for EVP_MAX_MD_SIZE bytes. For TLS 1.2 and up, |*out_md| is used 875 * for the hash function, otherwise the hash function depends on the type of 876 * |pkey| and is written to |*out_md|. It returns one on success and zero on 877 * failure. */ 878 int ssl3_cert_verify_hash(SSL *s, uint8_t *out, size_t *out_len, const EVP_MD **out_md, EVP_PKEY *pkey); 879 880 int ssl3_send_finished(SSL *s, int a, int b, const char *sender,int slen); 881 int ssl3_num_ciphers(void); 882 const SSL_CIPHER *ssl3_get_cipher(unsigned int u); 883 int ssl3_renegotiate(SSL *ssl); 884 int ssl3_renegotiate_check(SSL *ssl); 885 int ssl3_dispatch_alert(SSL *s); 886 int ssl3_expect_change_cipher_spec(SSL *s); 887 int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek); 888 int ssl3_write_bytes(SSL *s, int type, const void *buf, int len); 889 int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,unsigned char *p); 890 int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p); 891 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len); 892 int ssl3_enc(SSL *s, int send_data); 893 int n_ssl3_mac(SSL *ssl, unsigned char *md, int send_data); 894 void ssl3_free_digest_list(SSL *s); 895 unsigned long ssl3_output_cert_chain(SSL *s, CERT_PKEY *cpk); 896 const SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *clnt, 897 struct ssl_cipher_preference_list_st *srvr); 898 int ssl3_setup_buffers(SSL *s); 899 int ssl3_setup_read_buffer(SSL *s); 900 int ssl3_setup_write_buffer(SSL *s); 901 int ssl3_release_read_buffer(SSL *s); 902 int ssl3_release_write_buffer(SSL *s); 903 int ssl3_digest_cached_records(SSL *s); 904 int ssl3_new(SSL *s); 905 void ssl3_free(SSL *s); 906 int ssl3_accept(SSL *s); 907 int ssl3_connect(SSL *s); 908 int ssl3_read(SSL *s, void *buf, int len); 909 int ssl3_peek(SSL *s, void *buf, int len); 910 int ssl3_write(SSL *s, const void *buf, int len); 911 int ssl3_shutdown(SSL *s); 912 void ssl3_clear(SSL *s); 913 long ssl3_ctrl(SSL *s,int cmd, long larg, void *parg); 914 long ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg); 915 long ssl3_callback_ctrl(SSL *s,int cmd, void (*fp)(void)); 916 long ssl3_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void)); 917 int ssl3_pending(const SSL *s); 918 919 void ssl3_record_sequence_update(unsigned char *seq); 920 int ssl3_do_change_cipher_spec(SSL *ssl); 921 922 void ssl3_set_handshake_header(SSL *s, int htype, unsigned long len); 923 int ssl3_handshake_write(SSL *s); 924 925 int ssl23_read(SSL *s, void *buf, int len); 926 int ssl23_peek(SSL *s, void *buf, int len); 927 int ssl23_write(SSL *s, const void *buf, int len); 928 929 int dtls1_do_write(SSL *s,int type); 930 int ssl3_read_n(SSL *s, int n, int max, int extend); 931 int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek); 932 int ssl3_write_pending(SSL *s, int type, const unsigned char *buf, 933 unsigned int len); 934 unsigned char *dtls1_set_message_header(SSL *s, 935 unsigned char *p, unsigned char mt, unsigned long len, 936 unsigned long frag_off, unsigned long frag_len); 937 938 int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len); 939 int dtls1_write_bytes(SSL *s, int type, const void *buf, int len); 940 941 int dtls1_send_change_cipher_spec(SSL *s, int a, int b); 942 int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen); 943 unsigned long dtls1_output_cert_chain(SSL *s, CERT_PKEY *cpk); 944 int dtls1_read_failed(SSL *s, int code); 945 int dtls1_buffer_message(SSL *s, int ccs); 946 int dtls1_retransmit_message(SSL *s, unsigned short seq, 947 unsigned long frag_off, int *found); 948 int dtls1_get_queue_priority(unsigned short seq, int is_ccs); 949 int dtls1_retransmit_buffered_messages(SSL *s); 950 void dtls1_clear_record_buffer(SSL *s); 951 void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr); 952 void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr); 953 void dtls1_reset_seq_numbers(SSL *s, int rw); 954 int dtls1_check_timeout_num(SSL *s); 955 int dtls1_handle_timeout(SSL *s); 956 const SSL_CIPHER *dtls1_get_cipher(unsigned int u); 957 void dtls1_start_timer(SSL *s); 958 void dtls1_stop_timer(SSL *s); 959 int dtls1_is_timer_expired(SSL *s); 960 void dtls1_double_timeout(SSL *s); 961 unsigned int dtls1_min_mtu(void); 962 963 /* some client-only functions */ 964 int ssl3_send_client_hello(SSL *s); 965 int ssl3_get_server_hello(SSL *s); 966 int ssl3_get_certificate_request(SSL *s); 967 int ssl3_get_new_session_ticket(SSL *s); 968 int ssl3_get_cert_status(SSL *s); 969 int ssl3_get_server_done(SSL *s); 970 int ssl3_send_cert_verify(SSL *s); 971 int ssl3_send_client_certificate(SSL *s); 972 int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey); 973 int ssl3_send_client_key_exchange(SSL *s); 974 int ssl3_get_server_key_exchange(SSL *s); 975 int ssl3_get_server_certificate(SSL *s); 976 int ssl3_check_cert_and_algorithm(SSL *s); 977 int ssl3_send_next_proto(SSL *s); 978 int ssl3_send_channel_id(SSL *s); 979 980 int dtls1_client_hello(SSL *s); 981 982 /* some server-only functions */ 983 int ssl3_get_client_hello(SSL *s); 984 int ssl3_send_server_hello(SSL *s); 985 int ssl3_send_hello_request(SSL *s); 986 int ssl3_send_server_key_exchange(SSL *s); 987 int ssl3_send_certificate_request(SSL *s); 988 int ssl3_send_server_done(SSL *s); 989 int ssl3_get_client_certificate(SSL *s); 990 int ssl3_get_client_key_exchange(SSL *s); 991 int ssl3_get_cert_verify(SSL *s); 992 int ssl3_get_next_proto(SSL *s); 993 int ssl3_get_channel_id(SSL *s); 994 995 int ssl23_accept(SSL *s); 996 int ssl23_connect(SSL *s); 997 int ssl23_read_bytes(SSL *s, int n); 998 int ssl23_write_bytes(SSL *s); 999 1000 int dtls1_new(SSL *s); 1001 int dtls1_accept(SSL *s); 1002 int dtls1_connect(SSL *s); 1003 void dtls1_free(SSL *s); 1004 void dtls1_clear(SSL *s); 1005 long dtls1_ctrl(SSL *s,int cmd, long larg, void *parg); 1006 int dtls1_shutdown(SSL *s); 1007 1008 long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int hash_message, int *ok); 1009 int dtls1_get_record(SSL *s); 1010 int dtls1_dispatch_alert(SSL *s); 1011 int dtls1_enc(SSL *s, int snd); 1012 1013 int ssl_init_wbio_buffer(SSL *s, int push); 1014 void ssl_free_wbio_buffer(SSL *s); 1015 1016 int tls1_change_cipher_state(SSL *s, int which); 1017 int tls1_setup_key_block(SSL *s); 1018 int tls1_enc(SSL *s, int snd); 1019 int tls1_handshake_digest(SSL *s, unsigned char *out, size_t out_len); 1020 int tls1_final_finish_mac(SSL *s, 1021 const char *str, int slen, unsigned char *p); 1022 int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p); 1023 int tls1_mac(SSL *ssl, unsigned char *md, int snd); 1024 int tls1_generate_master_secret(SSL *s, unsigned char *out, 1025 unsigned char *p, int len); 1026 int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen, 1027 const char *label, size_t llen, 1028 const unsigned char *p, size_t plen, int use_context); 1029 int tls1_alert_code(int code); 1030 int ssl3_alert_code(int code); 1031 int ssl_ok(SSL *s); 1032 1033 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s); 1034 1035 char ssl_early_callback_init(struct ssl_early_callback_ctx *ctx); 1036 int tls1_ec_curve_id2nid(uint16_t curve_id); 1037 uint16_t tls1_ec_nid2curve_id(int nid); 1038 1039 /* tls1_check_curve parses ECParameters out of |cbs|, modifying it. It 1040 * checks the curve is one of our preferences and writes the 1041 * NamedCurve value to |*out_curve_id|. It returns one on success and 1042 * zero on error. */ 1043 int tls1_check_curve(SSL *s, CBS *cbs, uint16_t *out_curve_id); 1044 1045 /* tls1_get_shared_curve returns the NID of the first preferred shared curve 1046 * between client and server preferences. If none can be found, it returns 1047 * NID_undef. */ 1048 int tls1_get_shared_curve(SSL *s); 1049 1050 /* tls1_set_curves converts the array of |ncurves| NIDs pointed to by |curves| 1051 * into a newly allocated array of TLS curve IDs. On success, the function 1052 * returns one and writes the array to |*out_curve_ids| and its size to 1053 * |*out_curve_ids_len|. Otherwise, it returns zero. */ 1054 int tls1_set_curves(uint16_t **out_curve_ids, size_t *out_curve_ids_len, 1055 const int *curves, size_t ncurves); 1056 1057 int tls1_check_ec_tmp_key(SSL *s, unsigned long id); 1058 1059 int tls1_shared_list(SSL *s, 1060 const unsigned char *l1, size_t l1len, 1061 const unsigned char *l2, size_t l2len, 1062 int nmatch); 1063 unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *buf, unsigned char *limit, size_t header_len); 1064 unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *buf, unsigned char *limit); 1065 int ssl_parse_clienthello_tlsext(SSL *s, CBS *cbs); 1066 int ssl_parse_serverhello_tlsext(SSL *s, CBS *cbs); 1067 int ssl_prepare_clienthello_tlsext(SSL *s); 1068 int ssl_prepare_serverhello_tlsext(SSL *s); 1069 1070 #define tlsext_tick_md EVP_sha256 1071 int tls1_process_ticket(SSL *s, const struct ssl_early_callback_ctx *ctx, 1072 SSL_SESSION **ret); 1073 1074 int tls12_get_sigandhash(unsigned char *p, const EVP_PKEY *pk, 1075 const EVP_MD *md); 1076 int tls12_get_sigid(const EVP_PKEY *pk); 1077 const EVP_MD *tls12_get_hash(unsigned char hash_alg); 1078 1079 int tls1_channel_id_hash(EVP_MD_CTX *ctx, SSL *s); 1080 int tls1_record_handshake_hashes_for_channel_id(SSL *s); 1081 1082 int tls1_set_sigalgs_list(CERT *c, const char *str, int client); 1083 int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, int client); 1084 int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain, 1085 int idx); 1086 void tls1_set_cert_validity(SSL *s); 1087 1088 /* ssl_ctx_log_rsa_client_key_exchange logs |premaster| to |ctx|, if logging is 1089 * enabled. It returns one on success and zero on failure. The entry is 1090 * identified by the first 8 bytes of |encrypted_premaster|. */ 1091 int ssl_ctx_log_rsa_client_key_exchange(SSL_CTX *ctx, 1092 const uint8_t *encrypted_premaster, size_t encrypted_premaster_len, 1093 const uint8_t *premaster, size_t premaster_len); 1094 1095 /* ssl_ctx_log_master_secret logs |master| to |ctx|, if logging is enabled. It 1096 * returns one on success and zero on failure. The entry is identified by 1097 * |client_random|. */ 1098 int ssl_ctx_log_master_secret(SSL_CTX *ctx, 1099 const uint8_t *client_random, size_t client_random_len, 1100 const uint8_t *master, size_t master_len); 1101 1102 int ssl3_can_cutthrough(const SSL *s); 1103 int ssl_get_max_version(const SSL *s); 1104 EVP_MD_CTX* ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md) ; 1105 void ssl_clear_hash_ctx(EVP_MD_CTX **hash); 1106 int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len, 1107 int maxlen); 1108 int ssl_parse_serverhello_renegotiate_ext(SSL *s, CBS *cbs, int *out_alert); 1109 int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len, 1110 int maxlen); 1111 int ssl_parse_clienthello_renegotiate_ext(SSL *s, CBS *cbs, int *out_alert); 1112 long ssl_get_algorithm2(SSL *s); 1113 int tls1_process_sigalgs(SSL *s, const CBS *sigalgs); 1114 size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs); 1115 int tls12_check_peer_sigalg(const EVP_MD **out_md, int *out_alert, SSL *s, 1116 CBS *cbs, EVP_PKEY *pkey); 1117 void ssl_set_client_disabled(SSL *s); 1118 1119 int ssl_add_clienthello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen); 1120 int ssl_parse_clienthello_use_srtp_ext(SSL *s, CBS *cbs, int *out_alert); 1121 int ssl_add_serverhello_use_srtp_ext(SSL *s, unsigned char *p, int *len, int maxlen); 1122 int ssl_parse_serverhello_use_srtp_ext(SSL *s, CBS *cbs, int *out_alert); 1123 1124 /* s3_cbc.c */ 1125 void ssl3_cbc_copy_mac(unsigned char* out, 1126 const SSL3_RECORD *rec, 1127 unsigned md_size,unsigned orig_len); 1128 int ssl3_cbc_remove_padding(const SSL* s, 1129 SSL3_RECORD *rec, 1130 unsigned block_size, 1131 unsigned mac_size); 1132 int tls1_cbc_remove_padding(const SSL* s, 1133 SSL3_RECORD *rec, 1134 unsigned block_size, 1135 unsigned mac_size); 1136 char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx); 1137 void ssl3_cbc_digest_record( 1138 const EVP_MD_CTX *ctx, 1139 unsigned char* md_out, 1140 size_t* md_out_size, 1141 const unsigned char header[13], 1142 const unsigned char *data, 1143 size_t data_plus_mac_size, 1144 size_t data_plus_mac_plus_padding_size, 1145 const unsigned char *mac_secret, 1146 unsigned mac_secret_length, 1147 char is_sslv3); 1148 1149 #endif 1150
