ssl_locl.h revision 284295
1/* ssl/ssl_locl.h */ 2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay@cryptsoft.com). 7 * The implementation was written so as to conform with Netscapes SSL. 8 * 9 * This library is free for commercial and non-commercial use as long as 10 * the following conditions are aheared to. The following conditions 11 * apply to all code found in this distribution, be it the RC4, RSA, 12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation 13 * included with this distribution is covered by the same copyright terms 14 * except that the holder is Tim Hudson (tjh@cryptsoft.com). 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. 18 * If this package is used in a product, Eric Young should be given attribution 19 * as the author of the parts of the library used. 20 * This can be in the form of a textual message at program startup or 21 * in documentation (online or textual) provided with the package. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * "This product includes cryptographic software written by 34 * Eric Young (eay@cryptsoft.com)" 35 * The word 'cryptographic' can be left out if the rouines from the library 36 * being used are not cryptographic related :-). 37 * 4. If you include any Windows specific code (or a derivative thereof) from 38 * the apps directory (application code) you must include an acknowledgement: 39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" 40 * 41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 51 * SUCH DAMAGE. 52 * 53 * The licence and distribution terms for any publically available version or 54 * derivative of this code cannot be changed. i.e. this code cannot simply be 55 * copied and put under another distribution licence 56 * [including the GNU Public Licence.] 57 */ 58/* ==================================================================== 59 * Copyright (c) 1998-2001 The OpenSSL Project. All rights reserved. 60 * 61 * Redistribution and use in source and binary forms, with or without 62 * modification, are permitted provided that the following conditions 63 * are met: 64 * 65 * 1. Redistributions of source code must retain the above copyright 66 * notice, this list of conditions and the following disclaimer. 67 * 68 * 2. Redistributions in binary form must reproduce the above copyright 69 * notice, this list of conditions and the following disclaimer in 70 * the documentation and/or other materials provided with the 71 * distribution. 72 * 73 * 3. All advertising materials mentioning features or use of this 74 * software must display the following acknowledgment: 75 * "This product includes software developed by the OpenSSL Project 76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" 77 * 78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 79 * endorse or promote products derived from this software without 80 * prior written permission. For written permission, please contact 81 * openssl-core@openssl.org. 82 * 83 * 5. Products derived from this software may not be called "OpenSSL" 84 * nor may "OpenSSL" appear in their names without prior written 85 * permission of the OpenSSL Project. 86 * 87 * 6. Redistributions of any form whatsoever must retain the following 88 * acknowledgment: 89 * "This product includes software developed by the OpenSSL Project 90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)" 91 * 92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 103 * OF THE POSSIBILITY OF SUCH DAMAGE. 104 * ==================================================================== 105 * 106 * This product includes cryptographic software written by Eric Young 107 * (eay@cryptsoft.com). This product includes software written by Tim 108 * Hudson (tjh@cryptsoft.com). 109 * 110 */ 111/* ==================================================================== 112 * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. 113 * ECC cipher suite support in OpenSSL originally developed by 114 * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. 115 */ 116 117#ifndef HEADER_SSL_LOCL_H 118#define HEADER_SSL_LOCL_H 119#include <stdlib.h> 120#include <time.h> 121#include <string.h> 122#include <errno.h> 123 124#include "e_os.h" 125 126#include <openssl/buffer.h> 127#ifndef OPENSSL_NO_COMP 128#include <openssl/comp.h> 129#endif 130#include <openssl/bio.h> 131#include <openssl/stack.h> 132#ifndef OPENSSL_NO_RSA 133#include <openssl/rsa.h> 134#endif 135#ifndef OPENSSL_NO_DSA 136#include <openssl/dsa.h> 137#endif 138#include <openssl/err.h> 139#include <openssl/ssl.h> 140#include <openssl/symhacks.h> 141 142#ifdef OPENSSL_BUILD_SHLIBSSL 143# undef OPENSSL_EXTERN 144# define OPENSSL_EXTERN OPENSSL_EXPORT 145#endif 146 147#define PKCS1_CHECK 148 149#define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \ 150 l|=(((unsigned long)(*((c)++)))<< 8), \ 151 l|=(((unsigned long)(*((c)++)))<<16), \ 152 l|=(((unsigned long)(*((c)++)))<<24)) 153 154/* NOTE - c is not incremented as per c2l */ 155#define c2ln(c,l1,l2,n) { \ 156 c+=n; \ 157 l1=l2=0; \ 158 switch (n) { \ 159 case 8: l2 =((unsigned long)(*(--(c))))<<24; \ 160 case 7: l2|=((unsigned long)(*(--(c))))<<16; \ 161 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \ 162 case 5: l2|=((unsigned long)(*(--(c)))); \ 163 case 4: l1 =((unsigned long)(*(--(c))))<<24; \ 164 case 3: l1|=((unsigned long)(*(--(c))))<<16; \ 165 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \ 166 case 1: l1|=((unsigned long)(*(--(c)))); \ 167 } \ 168 } 169 170#define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ 171 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ 172 *((c)++)=(unsigned char)(((l)>>16)&0xff), \ 173 *((c)++)=(unsigned char)(((l)>>24)&0xff)) 174 175#define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \ 176 l|=((unsigned long)(*((c)++)))<<16, \ 177 l|=((unsigned long)(*((c)++)))<< 8, \ 178 l|=((unsigned long)(*((c)++)))) 179 180#define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \ 181 *((c)++)=(unsigned char)(((l)>>16)&0xff), \ 182 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ 183 *((c)++)=(unsigned char)(((l) )&0xff)) 184 185#define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \ 186 *((c)++)=(unsigned char)(((l)>>32)&0xff), \ 187 *((c)++)=(unsigned char)(((l)>>24)&0xff), \ 188 *((c)++)=(unsigned char)(((l)>>16)&0xff), \ 189 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ 190 *((c)++)=(unsigned char)(((l) )&0xff)) 191 192#define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \ 193 *((c)++)=(unsigned char)(((l)>>48)&0xff), \ 194 *((c)++)=(unsigned char)(((l)>>40)&0xff), \ 195 *((c)++)=(unsigned char)(((l)>>32)&0xff), \ 196 *((c)++)=(unsigned char)(((l)>>24)&0xff), \ 197 *((c)++)=(unsigned char)(((l)>>16)&0xff), \ 198 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ 199 *((c)++)=(unsigned char)(((l) )&0xff)) 200 201#define n2l6(c,l) (l =((BN_ULLONG)(*((c)++)))<<40, \ 202 l|=((BN_ULLONG)(*((c)++)))<<32, \ 203 l|=((BN_ULLONG)(*((c)++)))<<24, \ 204 l|=((BN_ULLONG)(*((c)++)))<<16, \ 205 l|=((BN_ULLONG)(*((c)++)))<< 8, \ 206 l|=((BN_ULLONG)(*((c)++)))) 207 208/* NOTE - c is not incremented as per l2c */ 209#define l2cn(l1,l2,c,n) { \ 210 c+=n; \ 211 switch (n) { \ 212 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \ 213 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \ 214 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \ 215 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ 216 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \ 217 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \ 218 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \ 219 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ 220 } \ 221 } 222 223#define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \ 224 (((unsigned int)(c[1])) )),c+=2) 225#define s2n(s,c) ((c[0]=(unsigned char)(((s)>> 8)&0xff), \ 226 c[1]=(unsigned char)(((s) )&0xff)),c+=2) 227 228#define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \ 229 (((unsigned long)(c[1]))<< 8)| \ 230 (((unsigned long)(c[2])) )),c+=3) 231 232#define l2n3(l,c) ((c[0]=(unsigned char)(((l)>>16)&0xff), \ 233 c[1]=(unsigned char)(((l)>> 8)&0xff), \ 234 c[2]=(unsigned char)(((l) )&0xff)),c+=3) 235 236/* LOCAL STUFF */ 237 238#define SSL_DECRYPT 0 239#define SSL_ENCRYPT 1 240 241#define TWO_BYTE_BIT 0x80 242#define SEC_ESC_BIT 0x40 243#define TWO_BYTE_MASK 0x7fff 244#define THREE_BYTE_MASK 0x3fff 245 246#define INC32(a) ((a)=((a)+1)&0xffffffffL) 247#define DEC32(a) ((a)=((a)-1)&0xffffffffL) 248#define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */ 249 250/* 251 * Define the Bitmasks for SSL_CIPHER.algorithms. 252 * This bits are used packed as dense as possible. If new methods/ciphers 253 * etc will be added, the bits a likely to change, so this information 254 * is for internal library use only, even though SSL_CIPHER.algorithms 255 * can be publicly accessed. 256 * Use the according functions for cipher management instead. 257 * 258 * The bit mask handling in the selection and sorting scheme in 259 * ssl_create_cipher_list() has only limited capabilities, reflecting 260 * that the different entities within are mutually exclusive: 261 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME. 262 */ 263#define SSL_MKEY_MASK 0x000000FFL 264#define SSL_kRSA 0x00000001L /* RSA key exchange */ 265#define SSL_kDHr 0x00000002L /* DH cert RSA CA cert */ 266#define SSL_kDHd 0x00000004L /* DH cert DSA CA cert */ 267#define SSL_kFZA 0x00000008L 268#define SSL_kEDH 0x00000010L /* tmp DH key no DH cert */ 269#define SSL_kKRB5 0x00000020L /* Kerberos5 key exchange */ 270#define SSL_kECDH 0x00000040L /* ECDH w/ long-term keys */ 271#define SSL_kECDHE 0x00000080L /* ephemeral ECDH */ 272#define SSL_EDH (SSL_kEDH|(SSL_AUTH_MASK^SSL_aNULL)) 273 274#define SSL_AUTH_MASK 0x00007F00L 275#define SSL_aRSA 0x00000100L /* Authenticate with RSA */ 276#define SSL_aDSS 0x00000200L /* Authenticate with DSS */ 277#define SSL_DSS SSL_aDSS 278#define SSL_aFZA 0x00000400L 279#define SSL_aNULL 0x00000800L /* no Authenticate, ADH */ 280#define SSL_aDH 0x00001000L /* no Authenticate, ADH */ 281#define SSL_aKRB5 0x00002000L /* Authenticate with KRB5 */ 282#define SSL_aECDSA 0x00004000L /* Authenticate with ECDSA */ 283 284#define SSL_NULL (SSL_eNULL) 285#define SSL_ADH (SSL_kEDH|SSL_aNULL) 286#define SSL_RSA (SSL_kRSA|SSL_aRSA) 287#define SSL_DH (SSL_kDHr|SSL_kDHd|SSL_kEDH) 288#define SSL_ECDH (SSL_kECDH|SSL_kECDHE) 289#define SSL_FZA (SSL_aFZA|SSL_kFZA|SSL_eFZA) 290#define SSL_KRB5 (SSL_kKRB5|SSL_aKRB5) 291 292#define SSL_ENC_MASK 0x1C3F8000L 293#define SSL_DES 0x00008000L 294#define SSL_3DES 0x00010000L 295#define SSL_RC4 0x00020000L 296#define SSL_RC2 0x00040000L 297#define SSL_IDEA 0x00080000L 298#define SSL_eFZA 0x00100000L 299#define SSL_eNULL 0x00200000L 300#define SSL_AES 0x04000000L 301#define SSL_CAMELLIA 0x08000000L 302#define SSL_SEED 0x10000000L 303 304#define SSL_MAC_MASK 0x00c00000L 305#define SSL_MD5 0x00400000L 306#define SSL_SHA1 0x00800000L 307#define SSL_SHA (SSL_SHA1) 308 309#define SSL_SSL_MASK 0x03000000L 310#define SSL_SSLV2 0x01000000L 311#define SSL_SSLV3 0x02000000L 312#define SSL_TLSV1 SSL_SSLV3 /* for now */ 313 314/* we have used 1fffffff - 3 bits left to go. */ 315 316/* 317 * Export and cipher strength information. For each cipher we have to decide 318 * whether it is exportable or not. This information is likely to change 319 * over time, since the export control rules are no static technical issue. 320 * 321 * Independent of the export flag the cipher strength is sorted into classes. 322 * SSL_EXP40 was denoting the 40bit US export limit of past times, which now 323 * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change 324 * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more, 325 * since SSL_EXP64 could be similar to SSL_LOW. 326 * For this reason SSL_MICRO and SSL_MINI macros are included to widen the 327 * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed 328 * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would 329 * be possible. 330 */ 331#define SSL_EXP_MASK 0x00000003L 332#define SSL_NOT_EXP 0x00000001L 333#define SSL_EXPORT 0x00000002L 334 335#define SSL_STRONG_MASK 0x000000fcL 336#define SSL_STRONG_NONE 0x00000004L 337#define SSL_EXP40 0x00000008L 338#define SSL_MICRO (SSL_EXP40) 339#define SSL_EXP56 0x00000010L 340#define SSL_MINI (SSL_EXP56) 341#define SSL_LOW 0x00000020L 342#define SSL_MEDIUM 0x00000040L 343#define SSL_HIGH 0x00000080L 344#define SSL_FIPS 0x00000100L 345 346/* we have used 000001ff - 23 bits left to go */ 347 348/* 349 * Macros to check the export status and cipher strength for export ciphers. 350 * Even though the macros for EXPORT and EXPORT40/56 have similar names, 351 * their meaning is different: 352 * *_EXPORT macros check the 'exportable' status. 353 * *_EXPORT40/56 macros are used to check whether a certain cipher strength 354 * is given. 355 * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct 356 * algorithm structure element to be passed (algorithms, algo_strength) and no 357 * typechecking can be done as they are all of type unsigned long, their 358 * direct usage is discouraged. 359 * Use the SSL_C_* macros instead. 360 */ 361#define SSL_IS_EXPORT(a) ((a)&SSL_EXPORT) 362#define SSL_IS_EXPORT56(a) ((a)&SSL_EXP56) 363#define SSL_IS_EXPORT40(a) ((a)&SSL_EXP40) 364#define SSL_C_IS_EXPORT(c) SSL_IS_EXPORT((c)->algo_strength) 365#define SSL_C_IS_EXPORT56(c) SSL_IS_EXPORT56((c)->algo_strength) 366#define SSL_C_IS_EXPORT40(c) SSL_IS_EXPORT40((c)->algo_strength) 367 368#define SSL_EXPORT_KEYLENGTH(a,s) (SSL_IS_EXPORT40(s) ? 5 : \ 369 ((a)&SSL_ENC_MASK) == SSL_DES ? 8 : 7) 370#define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024) 371#define SSL_C_EXPORT_KEYLENGTH(c) SSL_EXPORT_KEYLENGTH((c)->algorithms, \ 372 (c)->algo_strength) 373#define SSL_C_EXPORT_PKEYLENGTH(c) SSL_EXPORT_PKEYLENGTH((c)->algo_strength) 374 375 376#define SSL_ALL 0xffffffffL 377#define SSL_ALL_CIPHERS (SSL_MKEY_MASK|SSL_AUTH_MASK|SSL_ENC_MASK|\ 378 SSL_MAC_MASK) 379#define SSL_ALL_STRENGTHS (SSL_EXP_MASK|SSL_STRONG_MASK) 380 381/* Mostly for SSLv3 */ 382#define SSL_PKEY_RSA_ENC 0 383#define SSL_PKEY_RSA_SIGN 1 384#define SSL_PKEY_DSA_SIGN 2 385#define SSL_PKEY_DH_RSA 3 386#define SSL_PKEY_DH_DSA 4 387#define SSL_PKEY_ECC 5 388#define SSL_PKEY_NUM 6 389 390/* SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) | 391 * <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN) 392 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN) 393 * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN 394 * SSL_aRSA <- RSA_ENC | RSA_SIGN 395 * SSL_aDSS <- DSA_SIGN 396 */ 397 398/* 399#define CERT_INVALID 0 400#define CERT_PUBLIC_KEY 1 401#define CERT_PRIVATE_KEY 2 402*/ 403 404#ifndef OPENSSL_NO_EC 405/* From ECC-TLS draft, used in encoding the curve type in 406 * ECParameters 407 */ 408#define EXPLICIT_PRIME_CURVE_TYPE 1 409#define EXPLICIT_CHAR2_CURVE_TYPE 2 410#define NAMED_CURVE_TYPE 3 411#endif /* OPENSSL_NO_EC */ 412 413typedef struct cert_pkey_st 414 { 415 X509 *x509; 416 EVP_PKEY *privatekey; 417 } CERT_PKEY; 418 419typedef struct cert_st 420 { 421 /* Current active set */ 422 CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array 423 * Probably it would make more sense to store 424 * an index, not a pointer. */ 425 426 /* The following masks are for the key and auth 427 * algorithms that are supported by the certs below */ 428 int valid; 429 unsigned long mask; 430 unsigned long export_mask; 431#ifndef OPENSSL_NO_RSA 432 RSA *rsa_tmp; 433 RSA *(*rsa_tmp_cb)(SSL *ssl,int is_export,int keysize); 434#endif 435#ifndef OPENSSL_NO_DH 436 DH *dh_tmp; 437 DH *(*dh_tmp_cb)(SSL *ssl,int is_export,int keysize); 438#endif 439#ifndef OPENSSL_NO_ECDH 440 EC_KEY *ecdh_tmp; 441 /* Callback for generating ephemeral ECDH keys */ 442 EC_KEY *(*ecdh_tmp_cb)(SSL *ssl,int is_export,int keysize); 443#endif 444 445 CERT_PKEY pkeys[SSL_PKEY_NUM]; 446 447 int references; /* >1 only if SSL_copy_session_id is used */ 448 } CERT; 449 450 451typedef struct sess_cert_st 452 { 453 STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */ 454 455 /* The 'peer_...' members are used only by clients. */ 456 int peer_cert_type; 457 458 CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never NULL!) */ 459 CERT_PKEY peer_pkeys[SSL_PKEY_NUM]; 460 /* Obviously we don't have the private keys of these, 461 * so maybe we shouldn't even use the CERT_PKEY type here. */ 462 463#ifndef OPENSSL_NO_RSA 464 RSA *peer_rsa_tmp; /* not used for SSL 2 */ 465#endif 466#ifndef OPENSSL_NO_DH 467 DH *peer_dh_tmp; /* not used for SSL 2 */ 468#endif 469#ifndef OPENSSL_NO_ECDH 470 EC_KEY *peer_ecdh_tmp; 471#endif 472 473 int references; /* actually always 1 at the moment */ 474 } SESS_CERT; 475 476 477/*#define MAC_DEBUG */ 478 479/*#define ERR_DEBUG */ 480/*#define ABORT_DEBUG */ 481/*#define PKT_DEBUG 1 */ 482/*#define DES_DEBUG */ 483/*#define DES_OFB_DEBUG */ 484/*#define SSL_DEBUG */ 485/*#define RSA_DEBUG */ 486/*#define IDEA_DEBUG */ 487 488#define FP_ICC (int (*)(const void *,const void *)) 489#define ssl_put_cipher_by_char(ssl,ciph,ptr) \ 490 ((ssl)->method->put_cipher_by_char((ciph),(ptr))) 491#define ssl_get_cipher_by_char(ssl,ptr) \ 492 ((ssl)->method->get_cipher_by_char(ptr)) 493 494/* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff 495 * It is a bit of a mess of functions, but hell, think of it as 496 * an opaque structure :-) */ 497typedef struct ssl3_enc_method 498 { 499 int (*enc)(SSL *, int); 500 int (*mac)(SSL *, unsigned char *, int); 501 int (*setup_key_block)(SSL *); 502 int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int); 503 int (*change_cipher_state)(SSL *, int); 504 int (*final_finish_mac)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char *, int, unsigned char *); 505 int finish_mac_length; 506 int (*cert_verify_mac)(SSL *, EVP_MD_CTX *, unsigned char *); 507 const char *client_finished_label; 508 int client_finished_label_len; 509 const char *server_finished_label; 510 int server_finished_label_len; 511 int (*alert_value)(int); 512 } SSL3_ENC_METHOD; 513 514#ifndef OPENSSL_NO_COMP 515/* Used for holding the relevant compression methods loaded into SSL_CTX */ 516typedef struct ssl3_comp_st 517 { 518 int comp_id; /* The identifier byte for this compression type */ 519 char *name; /* Text name used for the compression type */ 520 COMP_METHOD *method; /* The method :-) */ 521 } SSL3_COMP; 522#endif 523 524extern SSL3_ENC_METHOD ssl3_undef_enc_method; 525OPENSSL_EXTERN SSL_CIPHER ssl2_ciphers[]; 526OPENSSL_EXTERN SSL_CIPHER ssl3_ciphers[]; 527 528 529SSL_METHOD *ssl_bad_method(int ver); 530SSL_METHOD *sslv2_base_method(void); 531SSL_METHOD *sslv23_base_method(void); 532SSL_METHOD *sslv3_base_method(void); 533 534extern SSL3_ENC_METHOD TLSv1_enc_data; 535extern SSL3_ENC_METHOD SSLv3_enc_data; 536extern SSL3_ENC_METHOD DTLSv1_enc_data; 537 538#define IMPLEMENT_tls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \ 539SSL_METHOD *func_name(void) \ 540 { \ 541 static SSL_METHOD func_name##_data= { \ 542 TLS1_VERSION, \ 543 tls1_new, \ 544 tls1_clear, \ 545 tls1_free, \ 546 s_accept, \ 547 s_connect, \ 548 ssl3_read, \ 549 ssl3_peek, \ 550 ssl3_write, \ 551 ssl3_shutdown, \ 552 ssl3_renegotiate, \ 553 ssl3_renegotiate_check, \ 554 ssl3_get_message, \ 555 ssl3_read_bytes, \ 556 ssl3_write_bytes, \ 557 ssl3_dispatch_alert, \ 558 ssl3_ctrl, \ 559 ssl3_ctx_ctrl, \ 560 ssl3_get_cipher_by_char, \ 561 ssl3_put_cipher_by_char, \ 562 ssl3_pending, \ 563 ssl3_num_ciphers, \ 564 ssl3_get_cipher, \ 565 s_get_meth, \ 566 tls1_default_timeout, \ 567 &TLSv1_enc_data, \ 568 ssl_undefined_void_function, \ 569 ssl3_callback_ctrl, \ 570 ssl3_ctx_callback_ctrl, \ 571 }; \ 572 return &func_name##_data; \ 573 } 574 575#define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \ 576SSL_METHOD *func_name(void) \ 577 { \ 578 static SSL_METHOD func_name##_data= { \ 579 SSL3_VERSION, \ 580 ssl3_new, \ 581 ssl3_clear, \ 582 ssl3_free, \ 583 s_accept, \ 584 s_connect, \ 585 ssl3_read, \ 586 ssl3_peek, \ 587 ssl3_write, \ 588 ssl3_shutdown, \ 589 ssl3_renegotiate, \ 590 ssl3_renegotiate_check, \ 591 ssl3_get_message, \ 592 ssl3_read_bytes, \ 593 ssl3_write_bytes, \ 594 ssl3_dispatch_alert, \ 595 ssl3_ctrl, \ 596 ssl3_ctx_ctrl, \ 597 ssl3_get_cipher_by_char, \ 598 ssl3_put_cipher_by_char, \ 599 ssl3_pending, \ 600 ssl3_num_ciphers, \ 601 ssl3_get_cipher, \ 602 s_get_meth, \ 603 ssl3_default_timeout, \ 604 &SSLv3_enc_data, \ 605 ssl_undefined_void_function, \ 606 ssl3_callback_ctrl, \ 607 ssl3_ctx_callback_ctrl, \ 608 }; \ 609 return &func_name##_data; \ 610 } 611 612#define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \ 613SSL_METHOD *func_name(void) \ 614 { \ 615 static SSL_METHOD func_name##_data= { \ 616 TLS1_VERSION, \ 617 tls1_new, \ 618 tls1_clear, \ 619 tls1_free, \ 620 s_accept, \ 621 s_connect, \ 622 ssl23_read, \ 623 ssl23_peek, \ 624 ssl23_write, \ 625 ssl_undefined_function, \ 626 ssl_undefined_function, \ 627 ssl_ok, \ 628 ssl3_get_message, \ 629 ssl3_read_bytes, \ 630 ssl3_write_bytes, \ 631 ssl3_dispatch_alert, \ 632 ssl3_ctrl, \ 633 ssl3_ctx_ctrl, \ 634 ssl23_get_cipher_by_char, \ 635 ssl23_put_cipher_by_char, \ 636 ssl_undefined_const_function, \ 637 ssl23_num_ciphers, \ 638 ssl23_get_cipher, \ 639 s_get_meth, \ 640 ssl23_default_timeout, \ 641 &ssl3_undef_enc_method, \ 642 ssl_undefined_void_function, \ 643 ssl3_callback_ctrl, \ 644 ssl3_ctx_callback_ctrl, \ 645 }; \ 646 return &func_name##_data; \ 647 } 648 649#define IMPLEMENT_ssl2_meth_func(func_name, s_accept, s_connect, s_get_meth) \ 650SSL_METHOD *func_name(void) \ 651 { \ 652 static SSL_METHOD func_name##_data= { \ 653 SSL2_VERSION, \ 654 ssl2_new, /* local */ \ 655 ssl2_clear, /* local */ \ 656 ssl2_free, /* local */ \ 657 s_accept, \ 658 s_connect, \ 659 ssl2_read, \ 660 ssl2_peek, \ 661 ssl2_write, \ 662 ssl2_shutdown, \ 663 ssl_ok, /* NULL - renegotiate */ \ 664 ssl_ok, /* NULL - check renegotiate */ \ 665 NULL, /* NULL - ssl_get_message */ \ 666 NULL, /* NULL - ssl_get_record */ \ 667 NULL, /* NULL - ssl_write_bytes */ \ 668 NULL, /* NULL - dispatch_alert */ \ 669 ssl2_ctrl, /* local */ \ 670 ssl2_ctx_ctrl, /* local */ \ 671 ssl2_get_cipher_by_char, \ 672 ssl2_put_cipher_by_char, \ 673 ssl2_pending, \ 674 ssl2_num_ciphers, \ 675 ssl2_get_cipher, \ 676 s_get_meth, \ 677 ssl2_default_timeout, \ 678 &ssl3_undef_enc_method, \ 679 ssl_undefined_void_function, \ 680 ssl2_callback_ctrl, /* local */ \ 681 ssl2_ctx_callback_ctrl, /* local */ \ 682 }; \ 683 return &func_name##_data; \ 684 } 685 686#define IMPLEMENT_dtls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \ 687SSL_METHOD *func_name(void) \ 688 { \ 689 static SSL_METHOD func_name##_data= { \ 690 DTLS1_VERSION, \ 691 dtls1_new, \ 692 dtls1_clear, \ 693 dtls1_free, \ 694 s_accept, \ 695 s_connect, \ 696 ssl3_read, \ 697 ssl3_peek, \ 698 ssl3_write, \ 699 ssl3_shutdown, \ 700 ssl3_renegotiate, \ 701 ssl3_renegotiate_check, \ 702 dtls1_get_message, \ 703 dtls1_read_bytes, \ 704 dtls1_write_app_data_bytes, \ 705 dtls1_dispatch_alert, \ 706 dtls1_ctrl, \ 707 ssl3_ctx_ctrl, \ 708 ssl3_get_cipher_by_char, \ 709 ssl3_put_cipher_by_char, \ 710 ssl3_pending, \ 711 ssl3_num_ciphers, \ 712 dtls1_get_cipher, \ 713 s_get_meth, \ 714 dtls1_default_timeout, \ 715 &DTLSv1_enc_data, \ 716 ssl_undefined_void_function, \ 717 ssl3_callback_ctrl, \ 718 ssl3_ctx_callback_ctrl, \ 719 }; \ 720 return &func_name##_data; \ 721 } 722 723void ssl_clear_cipher_ctx(SSL *s); 724int ssl_clear_bad_session(SSL *s); 725CERT *ssl_cert_new(void); 726CERT *ssl_cert_dup(CERT *cert); 727int ssl_cert_inst(CERT **o); 728void ssl_cert_free(CERT *c); 729SESS_CERT *ssl_sess_cert_new(void); 730void ssl_sess_cert_free(SESS_CERT *sc); 731int ssl_set_peer_cert_type(SESS_CERT *c, int type); 732int ssl_get_new_session(SSL *s, int session); 733int ssl_get_prev_session(SSL *s, unsigned char *session,int len, const unsigned char *limit); 734SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket); 735int ssl_cipher_id_cmp(const SSL_CIPHER *a,const SSL_CIPHER *b); 736int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap, 737 const SSL_CIPHER * const *bp); 738STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num, 739 STACK_OF(SSL_CIPHER) **skp); 740int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p, 741 int (*put_cb)(const SSL_CIPHER *, unsigned char *)); 742STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth, 743 STACK_OF(SSL_CIPHER) **pref, 744 STACK_OF(SSL_CIPHER) **sorted, 745 const char *rule_str); 746void ssl_update_cache(SSL *s, int mode); 747int ssl_cipher_get_evp(const SSL_SESSION *s,const EVP_CIPHER **enc, 748 const EVP_MD **md,SSL_COMP **comp); 749int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk); 750int ssl_undefined_function(SSL *s); 751int ssl_undefined_void_function(void); 752int ssl_undefined_const_function(const SSL *s); 753CERT_PKEY *ssl_get_server_send_pkey(const SSL *s); 754X509 *ssl_get_server_send_cert(const SSL *); 755EVP_PKEY *ssl_get_sign_pkey(SSL *,SSL_CIPHER *); 756int ssl_cert_type(X509 *x,EVP_PKEY *pkey); 757void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher); 758STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s); 759int ssl_verify_alarm_type(long type); 760void ssl_load_ciphers(void); 761 762int ssl2_enc_init(SSL *s, int client); 763int ssl2_generate_key_material(SSL *s); 764void ssl2_enc(SSL *s,int send_data); 765void ssl2_mac(SSL *s,unsigned char *mac,int send_data); 766SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p); 767int ssl2_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p); 768int ssl2_part_read(SSL *s, unsigned long f, int i); 769int ssl2_do_write(SSL *s); 770int ssl2_set_certificate(SSL *s, int type, int len, const unsigned char *data); 771void ssl2_return_error(SSL *s,int reason); 772void ssl2_write_error(SSL *s); 773int ssl2_num_ciphers(void); 774SSL_CIPHER *ssl2_get_cipher(unsigned int u); 775int ssl2_new(SSL *s); 776void ssl2_free(SSL *s); 777int ssl2_accept(SSL *s); 778int ssl2_connect(SSL *s); 779int ssl2_read(SSL *s, void *buf, int len); 780int ssl2_peek(SSL *s, void *buf, int len); 781int ssl2_write(SSL *s, const void *buf, int len); 782int ssl2_shutdown(SSL *s); 783void ssl2_clear(SSL *s); 784long ssl2_ctrl(SSL *s,int cmd, long larg, void *parg); 785long ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg); 786long ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)(void)); 787long ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void)); 788int ssl2_pending(const SSL *s); 789long ssl2_default_timeout(void ); 790 791SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p); 792int ssl3_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p); 793void ssl3_init_finished_mac(SSL *s); 794int ssl3_send_server_certificate(SSL *s); 795int ssl3_send_newsession_ticket(SSL *s); 796int ssl3_send_cert_status(SSL *s); 797int ssl3_get_finished(SSL *s,int state_a,int state_b); 798int ssl3_setup_key_block(SSL *s); 799int ssl3_send_change_cipher_spec(SSL *s,int state_a,int state_b); 800int ssl3_change_cipher_state(SSL *s,int which); 801void ssl3_cleanup_key_block(SSL *s); 802int ssl3_do_write(SSL *s,int type); 803int ssl3_send_alert(SSL *s,int level, int desc); 804int ssl3_generate_master_secret(SSL *s, unsigned char *out, 805 unsigned char *p, int len); 806int ssl3_get_req_cert_type(SSL *s,unsigned char *p); 807long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok); 808int ssl3_send_finished(SSL *s, int a, int b, const char *sender,int slen); 809int ssl3_num_ciphers(void); 810SSL_CIPHER *ssl3_get_cipher(unsigned int u); 811int ssl3_renegotiate(SSL *ssl); 812int ssl3_renegotiate_check(SSL *ssl); 813int ssl3_dispatch_alert(SSL *s); 814int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek); 815int ssl3_write_bytes(SSL *s, int type, const void *buf, int len); 816int ssl3_final_finish_mac(SSL *s, EVP_MD_CTX *ctx1, EVP_MD_CTX *ctx2, 817 const char *sender, int slen,unsigned char *p); 818int ssl3_cert_verify_mac(SSL *s, EVP_MD_CTX *in, unsigned char *p); 819void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len); 820int ssl3_enc(SSL *s, int send_data); 821int ssl3_mac(SSL *ssl, unsigned char *md, int send_data); 822unsigned long ssl3_output_cert_chain(SSL *s, X509 *x); 823SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *clnt, 824 STACK_OF(SSL_CIPHER) *srvr); 825int ssl3_setup_buffers(SSL *s); 826int ssl3_new(SSL *s); 827void ssl3_free(SSL *s); 828int ssl3_accept(SSL *s); 829int ssl3_connect(SSL *s); 830int ssl3_read(SSL *s, void *buf, int len); 831int ssl3_peek(SSL *s, void *buf, int len); 832int ssl3_write(SSL *s, const void *buf, int len); 833int ssl3_shutdown(SSL *s); 834void ssl3_clear(SSL *s); 835long ssl3_ctrl(SSL *s,int cmd, long larg, void *parg); 836long ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg); 837long ssl3_callback_ctrl(SSL *s,int cmd, void (*fp)(void)); 838long ssl3_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void)); 839int ssl3_pending(const SSL *s); 840 841void ssl3_record_sequence_update(unsigned char *seq); 842int ssl3_do_change_cipher_spec(SSL *ssl); 843long ssl3_default_timeout(void ); 844 845int ssl23_num_ciphers(void ); 846SSL_CIPHER *ssl23_get_cipher(unsigned int u); 847int ssl23_read(SSL *s, void *buf, int len); 848int ssl23_peek(SSL *s, void *buf, int len); 849int ssl23_write(SSL *s, const void *buf, int len); 850int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p); 851SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p); 852long ssl23_default_timeout(void ); 853 854long tls1_default_timeout(void); 855int dtls1_do_write(SSL *s,int type); 856int ssl3_read_n(SSL *s, int n, int max, int extend); 857int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek); 858int ssl3_do_compress(SSL *ssl); 859int ssl3_do_uncompress(SSL *ssl); 860int ssl3_write_pending(SSL *s, int type, const unsigned char *buf, 861 unsigned int len); 862unsigned char *dtls1_set_message_header(SSL *s, 863 unsigned char *p, unsigned char mt, unsigned long len, 864 unsigned long frag_off, unsigned long frag_len); 865 866int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len); 867int dtls1_write_bytes(SSL *s, int type, const void *buf, int len); 868 869int dtls1_send_change_cipher_spec(SSL *s, int a, int b); 870int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen); 871unsigned long dtls1_output_cert_chain(SSL *s, X509 *x); 872int dtls1_read_failed(SSL *s, int code); 873int dtls1_buffer_message(SSL *s, int ccs); 874int dtls1_retransmit_message(SSL *s, unsigned short seq, 875 unsigned long frag_off, int *found); 876int dtls1_get_queue_priority(unsigned short seq, int is_ccs); 877int dtls1_retransmit_buffered_messages(SSL *s); 878void dtls1_clear_record_buffer(SSL *s); 879void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr); 880void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr); 881void dtls1_reset_seq_numbers(SSL *s, int rw); 882long dtls1_default_timeout(void); 883struct timeval* dtls1_get_timeout(SSL *s, struct timeval* timeleft); 884int dtls1_check_timeout_num(SSL *s); 885int dtls1_handle_timeout(SSL *s); 886SSL_CIPHER *dtls1_get_cipher(unsigned int u); 887void dtls1_start_timer(SSL *s); 888void dtls1_stop_timer(SSL *s); 889int dtls1_is_timer_expired(SSL *s); 890void dtls1_double_timeout(SSL *s); 891int dtls1_send_newsession_ticket(SSL *s); 892unsigned int dtls1_min_mtu(void); 893 894 895/* some client-only functions */ 896int ssl3_client_hello(SSL *s); 897int ssl3_get_server_hello(SSL *s); 898int ssl3_get_certificate_request(SSL *s); 899int ssl3_get_new_session_ticket(SSL *s); 900int ssl3_get_cert_status(SSL *s); 901int ssl3_get_server_done(SSL *s); 902int ssl3_send_client_verify(SSL *s); 903int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey); 904int ssl3_send_client_certificate(SSL *s); 905int ssl3_send_client_key_exchange(SSL *s); 906int ssl3_get_key_exchange(SSL *s); 907int ssl3_get_server_certificate(SSL *s); 908int ssl3_check_cert_and_algorithm(SSL *s); 909#ifndef OPENSSL_NO_TLSEXT 910int ssl3_check_finished(SSL *s); 911#endif 912 913int dtls1_client_hello(SSL *s); 914int dtls1_send_client_certificate(SSL *s); 915int dtls1_send_client_key_exchange(SSL *s); 916int dtls1_send_client_verify(SSL *s); 917 918/* some server-only functions */ 919int ssl3_get_client_hello(SSL *s); 920int ssl3_send_server_hello(SSL *s); 921int ssl3_send_hello_request(SSL *s); 922int ssl3_send_server_key_exchange(SSL *s); 923int ssl3_send_certificate_request(SSL *s); 924int ssl3_send_server_done(SSL *s); 925int ssl3_check_client_hello(SSL *s); 926int ssl3_get_client_certificate(SSL *s); 927int ssl3_get_client_key_exchange(SSL *s); 928int ssl3_get_cert_verify(SSL *s); 929 930int dtls1_send_hello_request(SSL *s); 931int dtls1_send_server_hello(SSL *s); 932int dtls1_send_server_certificate(SSL *s); 933int dtls1_send_server_key_exchange(SSL *s); 934int dtls1_send_certificate_request(SSL *s); 935int dtls1_send_server_done(SSL *s); 936 937 938 939int ssl23_accept(SSL *s); 940int ssl23_connect(SSL *s); 941int ssl23_read_bytes(SSL *s, int n); 942int ssl23_write_bytes(SSL *s); 943 944int tls1_new(SSL *s); 945void tls1_free(SSL *s); 946void tls1_clear(SSL *s); 947long tls1_ctrl(SSL *s,int cmd, long larg, void *parg); 948long tls1_callback_ctrl(SSL *s,int cmd, void (*fp)(void)); 949SSL_METHOD *tlsv1_base_method(void ); 950 951int dtls1_new(SSL *s); 952int dtls1_accept(SSL *s); 953int dtls1_connect(SSL *s); 954void dtls1_free(SSL *s); 955void dtls1_clear(SSL *s); 956long dtls1_ctrl(SSL *s,int cmd, long larg, void *parg); 957SSL_METHOD *dtlsv1_base_method(void ); 958 959long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok); 960int dtls1_get_record(SSL *s); 961int do_dtls1_write(SSL *s, int type, const unsigned char *buf, 962 unsigned int len, int create_empty_fragement); 963int dtls1_dispatch_alert(SSL *s); 964int dtls1_enc(SSL *s, int snd); 965 966int ssl_init_wbio_buffer(SSL *s, int push); 967void ssl_free_wbio_buffer(SSL *s); 968 969int tls1_change_cipher_state(SSL *s, int which); 970int tls1_setup_key_block(SSL *s); 971int tls1_enc(SSL *s, int snd); 972int tls1_final_finish_mac(SSL *s, EVP_MD_CTX *in1_ctx, EVP_MD_CTX *in2_ctx, 973 const char *str, int slen, unsigned char *p); 974int tls1_cert_verify_mac(SSL *s, EVP_MD_CTX *in, unsigned char *p); 975int tls1_mac(SSL *ssl, unsigned char *md, int snd); 976int tls1_generate_master_secret(SSL *s, unsigned char *out, 977 unsigned char *p, int len); 978int tls1_alert_code(int code); 979int ssl3_alert_code(int code); 980int ssl_ok(SSL *s); 981 982int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs); 983 984SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n); 985 986#ifndef OPENSSL_NO_TLSEXT 987unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned char *limit); 988unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned char *limit); 989int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al); 990int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al); 991int ssl_prepare_clienthello_tlsext(SSL *s); 992int ssl_prepare_serverhello_tlsext(SSL *s); 993int ssl_check_clienthello_tlsext_early(SSL *s); 994int ssl_check_clienthello_tlsext_late(SSL *s); 995int ssl_check_serverhello_tlsext(SSL *s); 996 997#ifdef OPENSSL_NO_SHA256 998#define tlsext_tick_md EVP_sha1 999#else 1000#define tlsext_tick_md EVP_sha256 1001#endif 1002int tls1_process_ticket(SSL *s, unsigned char *session_id, int len, 1003 const unsigned char *limit, SSL_SESSION **ret); 1004EVP_MD_CTX* ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md) ; 1005void ssl_clear_hash_ctx(EVP_MD_CTX **hash); 1006 1007int ssl_add_serverhello_renegotiate_ext(SSL *s, unsigned char *p, int *len, 1008 int maxlen); 1009int ssl_parse_serverhello_renegotiate_ext(SSL *s, unsigned char *d, int len, 1010 int *al); 1011int ssl_add_clienthello_renegotiate_ext(SSL *s, unsigned char *p, int *len, 1012 int maxlen); 1013int ssl_parse_clienthello_renegotiate_ext(SSL *s, unsigned char *d, int len, 1014 int *al); 1015#endif 1016/* s3_cbc.c */ 1017void ssl3_cbc_copy_mac(unsigned char* out, 1018 const SSL3_RECORD *rec, 1019 unsigned md_size,unsigned orig_len); 1020int ssl3_cbc_remove_padding(const SSL* s, 1021 SSL3_RECORD *rec, 1022 unsigned block_size, 1023 unsigned mac_size); 1024int tls1_cbc_remove_padding(const SSL* s, 1025 SSL3_RECORD *rec, 1026 unsigned block_size, 1027 unsigned mac_size); 1028char ssl3_cbc_record_digest_supported(const EVP_MD *hash); 1029void ssl3_cbc_digest_record( 1030 const EVP_MD *hash, 1031 unsigned char* md_out, 1032 size_t* md_out_size, 1033 const unsigned char header[13], 1034 const unsigned char *data, 1035 size_t data_plus_mac_size, 1036 size_t data_plus_mac_plus_padding_size, 1037 const unsigned char *mac_secret, 1038 unsigned mac_secret_length, 1039 char is_sslv3); 1040 1041void tls_fips_digest_extra( 1042 const EVP_CIPHER_CTX *cipher_ctx, const EVP_MD *hash, HMAC_CTX *hctx, 1043 const unsigned char *data, size_t data_len, size_t orig_len); 1044 1045#endif 1046