2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
58 /* ====================================================================
59 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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 * ====================================================================
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).
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.
116 /* ====================================================================
117 * Copyright 2005 Nokia. All rights reserved.
119 * The portions of the attached software ("Contribution") is developed by
120 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
123 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
124 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
125 * support (see RFC 4279) to OpenSSL.
127 * No patent licenses or other rights except those expressly stated in
128 * the OpenSSL open source license shall be deemed granted or received
129 * expressly, by implication, estoppel, or otherwise.
131 * No assurances are provided by Nokia that the Contribution does not
132 * infringe the patent or other intellectual property rights of any third
133 * party or that the license provides you with all the necessary rights
134 * to make use of the Contribution.
136 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
137 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
138 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
139 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
143 #ifndef HEADER_SSL_LOCL_H
144 #define HEADER_SSL_LOCL_H
152 #include <openssl/buffer.h>
153 #include <openssl/comp.h>
154 #include <openssl/bio.h>
155 #include <openssl/stack.h>
156 #ifndef OPENSSL_NO_RSA
157 #include <openssl/rsa.h>
159 #ifndef OPENSSL_NO_DSA
160 #include <openssl/dsa.h>
162 #include <openssl/err.h>
163 #include <openssl/ssl.h>
164 #include <openssl/symhacks.h>
166 #ifdef OPENSSL_BUILD_SHLIBSSL
167 # undef OPENSSL_EXTERN
168 # define OPENSSL_EXTERN OPENSSL_EXPORT
173 #define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \
174 l|=(((unsigned long)(*((c)++)))<< 8), \
175 l|=(((unsigned long)(*((c)++)))<<16), \
176 l|=(((unsigned long)(*((c)++)))<<24))
178 /* NOTE - c is not incremented as per c2l */
179 #define c2ln(c,l1,l2,n) { \
183 case 8: l2 =((unsigned long)(*(--(c))))<<24; \
184 case 7: l2|=((unsigned long)(*(--(c))))<<16; \
185 case 6: l2|=((unsigned long)(*(--(c))))<< 8; \
186 case 5: l2|=((unsigned long)(*(--(c)))); \
187 case 4: l1 =((unsigned long)(*(--(c))))<<24; \
188 case 3: l1|=((unsigned long)(*(--(c))))<<16; \
189 case 2: l1|=((unsigned long)(*(--(c))))<< 8; \
190 case 1: l1|=((unsigned long)(*(--(c)))); \
194 #define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \
195 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
196 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
197 *((c)++)=(unsigned char)(((l)>>24)&0xff))
199 #define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \
200 l|=((unsigned long)(*((c)++)))<<16, \
201 l|=((unsigned long)(*((c)++)))<< 8, \
202 l|=((unsigned long)(*((c)++))))
204 #define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \
205 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
206 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
207 *((c)++)=(unsigned char)(((l) )&0xff))
209 #define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \
210 *((c)++)=(unsigned char)(((l)>>32)&0xff), \
211 *((c)++)=(unsigned char)(((l)>>24)&0xff), \
212 *((c)++)=(unsigned char)(((l)>>16)&0xff), \
213 *((c)++)=(unsigned char)(((l)>> 8)&0xff), \
214 *((c)++)=(unsigned char)(((l) )&0xff))
216 #define n2l6(c,l) (l =((BN_ULLONG)(*((c)++)))<<40, \
217 l|=((BN_ULLONG)(*((c)++)))<<32, \
218 l|=((BN_ULLONG)(*((c)++)))<<24, \
219 l|=((BN_ULLONG)(*((c)++)))<<16, \
220 l|=((BN_ULLONG)(*((c)++)))<< 8, \
221 l|=((BN_ULLONG)(*((c)++))))
223 /* NOTE - c is not incremented as per l2c */
224 #define l2cn(l1,l2,c,n) { \
227 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
228 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
229 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
230 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
231 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
232 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
233 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
234 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
238 #define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \
239 (((unsigned int)(c[1])) )),c+=2)
240 #define s2n(s,c) ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
241 c[1]=(unsigned char)(((s) )&0xff)),c+=2)
243 #define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \
244 (((unsigned long)(c[1]))<< 8)| \
245 (((unsigned long)(c[2])) )),c+=3)
247 #define l2n3(l,c) ((c[0]=(unsigned char)(((l)>>16)&0xff), \
248 c[1]=(unsigned char)(((l)>> 8)&0xff), \
249 c[2]=(unsigned char)(((l) )&0xff)),c+=3)
253 #define SSL_DECRYPT 0
254 #define SSL_ENCRYPT 1
256 #define TWO_BYTE_BIT 0x80
257 #define SEC_ESC_BIT 0x40
258 #define TWO_BYTE_MASK 0x7fff
259 #define THREE_BYTE_MASK 0x3fff
261 #define INC32(a) ((a)=((a)+1)&0xffffffffL)
262 #define DEC32(a) ((a)=((a)-1)&0xffffffffL)
263 #define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */
266 * Define the Bitmasks for SSL_CIPHER.algorithms.
267 * This bits are used packed as dense as possible. If new methods/ciphers
268 * etc will be added, the bits a likely to change, so this information
269 * is for internal library use only, even though SSL_CIPHER.algorithms
270 * can be publicly accessed.
271 * Use the according functions for cipher management instead.
273 * The bit mask handling in the selection and sorting scheme in
274 * ssl_create_cipher_list() has only limited capabilities, reflecting
275 * that the different entities within are mutually exclusive:
276 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
279 /* Bits for algorithm_mkey (key exchange algorithm) */
280 #define SSL_kRSA 0x00000001L /* RSA key exchange */
281 #define SSL_kDHr 0x00000002L /* DH cert, RSA CA cert */ /* no such ciphersuites supported! */
282 #define SSL_kDHd 0x00000004L /* DH cert, DSA CA cert */ /* no such ciphersuite supported! */
283 #define SSL_kEDH 0x00000008L /* tmp DH key no DH cert */
284 #define SSL_kKRB5 0x00000010L /* Kerberos5 key exchange */
285 #define SSL_kECDHr 0x00000020L /* ECDH cert, RSA CA cert */
286 #define SSL_kECDHe 0x00000040L /* ECDH cert, ECDSA CA cert */
287 #define SSL_kEECDH 0x00000080L /* ephemeral ECDH */
288 #define SSL_kPSK 0x00000100L /* PSK */
289 #define SSL_kGOST 0x00000200L /* GOST key exchange */
291 /* Bits for algorithm_auth (server authentication) */
292 #define SSL_aRSA 0x00000001L /* RSA auth */
293 #define SSL_aDSS 0x00000002L /* DSS auth */
294 #define SSL_aNULL 0x00000004L /* no auth (i.e. use ADH or AECDH) */
295 #define SSL_aDH 0x00000008L /* Fixed DH auth (kDHd or kDHr) */ /* no such ciphersuites supported! */
296 #define SSL_aECDH 0x00000010L /* Fixed ECDH auth (kECDHe or kECDHr) */
297 #define SSL_aKRB5 0x00000020L /* KRB5 auth */
298 #define SSL_aECDSA 0x00000040L /* ECDSA auth*/
299 #define SSL_aPSK 0x00000080L /* PSK auth */
300 #define SSL_aGOST94 0x00000100L /* GOST R 34.10-94 signature auth */
301 #define SSL_aGOST01 0x00000200L /* GOST R 34.10-2001 signature auth */
304 /* Bits for algorithm_enc (symmetric encryption) */
305 #define SSL_DES 0x00000001L
306 #define SSL_3DES 0x00000002L
307 #define SSL_RC4 0x00000004L
308 #define SSL_RC2 0x00000008L
309 #define SSL_IDEA 0x00000010L
310 #define SSL_eNULL 0x00000020L
311 #define SSL_AES128 0x00000040L
312 #define SSL_AES256 0x00000080L
313 #define SSL_CAMELLIA128 0x00000100L
314 #define SSL_CAMELLIA256 0x00000200L
315 #define SSL_eGOST2814789CNT 0x00000400L
316 #define SSL_SEED 0x00000800L
318 #define SSL_AES (SSL_AES128|SSL_AES256)
319 #define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256)
322 /* Bits for algorithm_mac (symmetric authentication) */
323 #define SSL_MD5 0x00000001L
324 #define SSL_SHA1 0x00000002L
325 #define SSL_GOST94 0x00000004L
326 #define SSL_GOST89MAC 0x00000008L
328 /* Bits for algorithm_ssl (protocol version) */
329 #define SSL_SSLV2 0x00000001L
330 #define SSL_SSLV3 0x00000002L
331 #define SSL_TLSV1 SSL_SSLV3 /* for now */
333 /* Bits for algorithm2 (handshake digests) */
335 #define SSL_HANDSHAKE_MAC_MD5 0x10
336 #define SSL_HANDSHAKE_MAC_SHA 0x20
337 #define SSL_HANDSHAKE_MAC_GOST94 0x40
338 #define SSL_HANDSHAKE_MAC_DEFAULT (SSL_HANDSHAKE_MAC_MD5 | SSL_HANDSHAKE_MAC_SHA)
341 /* When adding new digest in the ssl_ciph.c and increment SSM_MD_NUM_IDX
342 * make sure to update this constant too */
343 #define SSL_MAX_DIGEST 4
346 #define TLS1_PRF_DGST_SHIFT 8
347 #define TLS1_PRF_MD5 (SSL_HANDSHAKE_MAC_MD5 << TLS1_PRF_DGST_SHIFT)
348 #define TLS1_PRF_SHA1 (SSL_HANDSHAKE_MAC_SHA << TLS1_PRF_DGST_SHIFT)
349 #define TLS1_PRF_GOST94 (SSL_HANDSHAKE_MAC_GOST94 << TLS1_PRF_DGST_SHIFT)
350 #define TLS1_PRF (TLS1_PRF_MD5 | TLS1_PRF_SHA1)
352 * Export and cipher strength information. For each cipher we have to decide
353 * whether it is exportable or not. This information is likely to change
354 * over time, since the export control rules are no static technical issue.
356 * Independent of the export flag the cipher strength is sorted into classes.
357 * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
358 * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
359 * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
360 * since SSL_EXP64 could be similar to SSL_LOW.
361 * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
362 * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
363 * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
366 #define SSL_EXP_MASK 0x00000003L
367 #define SSL_STRONG_MASK 0x000000fcL
369 #define SSL_NOT_EXP 0x00000001L
370 #define SSL_EXPORT 0x00000002L
372 #define SSL_STRONG_NONE 0x00000004L
373 #define SSL_EXP40 0x00000008L
374 #define SSL_MICRO (SSL_EXP40)
375 #define SSL_EXP56 0x00000010L
376 #define SSL_MINI (SSL_EXP56)
377 #define SSL_LOW 0x00000020L
378 #define SSL_MEDIUM 0x00000040L
379 #define SSL_HIGH 0x00000080L
381 /* we have used 000000ff - 24 bits left to go */
384 * Macros to check the export status and cipher strength for export ciphers.
385 * Even though the macros for EXPORT and EXPORT40/56 have similar names,
386 * their meaning is different:
387 * *_EXPORT macros check the 'exportable' status.
388 * *_EXPORT40/56 macros are used to check whether a certain cipher strength
390 * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
391 * algorithm structure element to be passed (algorithms, algo_strength) and no
392 * typechecking can be done as they are all of type unsigned long, their
393 * direct usage is discouraged.
394 * Use the SSL_C_* macros instead.
396 #define SSL_IS_EXPORT(a) ((a)&SSL_EXPORT)
397 #define SSL_IS_EXPORT56(a) ((a)&SSL_EXP56)
398 #define SSL_IS_EXPORT40(a) ((a)&SSL_EXP40)
399 #define SSL_C_IS_EXPORT(c) SSL_IS_EXPORT((c)->algo_strength)
400 #define SSL_C_IS_EXPORT56(c) SSL_IS_EXPORT56((c)->algo_strength)
401 #define SSL_C_IS_EXPORT40(c) SSL_IS_EXPORT40((c)->algo_strength)
403 #define SSL_EXPORT_KEYLENGTH(a,s) (SSL_IS_EXPORT40(s) ? 5 : \
404 (a) == SSL_DES ? 8 : 7)
405 #define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
406 #define SSL_C_EXPORT_KEYLENGTH(c) SSL_EXPORT_KEYLENGTH((c)->algorithm_enc, \
408 #define SSL_C_EXPORT_PKEYLENGTH(c) SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
413 /* Mostly for SSLv3 */
414 #define SSL_PKEY_RSA_ENC 0
415 #define SSL_PKEY_RSA_SIGN 1
416 #define SSL_PKEY_DSA_SIGN 2
417 #define SSL_PKEY_DH_RSA 3
418 #define SSL_PKEY_DH_DSA 4
419 #define SSL_PKEY_ECC 5
420 #define SSL_PKEY_GOST94 6
421 #define SSL_PKEY_GOST01 7
422 #define SSL_PKEY_NUM 8
424 /* SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
425 * <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
426 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
427 * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN
428 * SSL_aRSA <- RSA_ENC | RSA_SIGN
429 * SSL_aDSS <- DSA_SIGN
433 #define CERT_INVALID 0
434 #define CERT_PUBLIC_KEY 1
435 #define CERT_PRIVATE_KEY 2
438 #ifndef OPENSSL_NO_EC
439 /* From ECC-TLS draft, used in encoding the curve type in
442 #define EXPLICIT_PRIME_CURVE_TYPE 1
443 #define EXPLICIT_CHAR2_CURVE_TYPE 2
444 #define NAMED_CURVE_TYPE 3
445 #endif /* OPENSSL_NO_EC */
447 typedef struct cert_pkey_st
450 EVP_PKEY *privatekey;
453 typedef struct cert_st
455 /* Current active set */
456 CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array
457 * Probably it would make more sense to store
458 * an index, not a pointer. */
460 /* The following masks are for the key and auth
461 * algorithms that are supported by the certs below */
463 unsigned long mask_k;
464 unsigned long mask_a;
465 unsigned long export_mask_k;
466 unsigned long export_mask_a;
467 #ifndef OPENSSL_NO_RSA
469 RSA *(*rsa_tmp_cb)(SSL *ssl,int is_export,int keysize);
471 #ifndef OPENSSL_NO_DH
473 DH *(*dh_tmp_cb)(SSL *ssl,int is_export,int keysize);
475 #ifndef OPENSSL_NO_ECDH
477 /* Callback for generating ephemeral ECDH keys */
478 EC_KEY *(*ecdh_tmp_cb)(SSL *ssl,int is_export,int keysize);
481 CERT_PKEY pkeys[SSL_PKEY_NUM];
483 int references; /* >1 only if SSL_copy_session_id is used */
487 typedef struct sess_cert_st
489 STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */
491 /* The 'peer_...' members are used only by clients. */
494 CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never NULL!) */
495 CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
496 /* Obviously we don't have the private keys of these,
497 * so maybe we shouldn't even use the CERT_PKEY type here. */
499 #ifndef OPENSSL_NO_RSA
500 RSA *peer_rsa_tmp; /* not used for SSL 2 */
502 #ifndef OPENSSL_NO_DH
503 DH *peer_dh_tmp; /* not used for SSL 2 */
505 #ifndef OPENSSL_NO_ECDH
506 EC_KEY *peer_ecdh_tmp;
509 int references; /* actually always 1 at the moment */
513 /*#define MAC_DEBUG */
515 /*#define ERR_DEBUG */
516 /*#define ABORT_DEBUG */
517 /*#define PKT_DEBUG 1 */
518 /*#define DES_DEBUG */
519 /*#define DES_OFB_DEBUG */
520 /*#define SSL_DEBUG */
521 /*#define RSA_DEBUG */
522 /*#define IDEA_DEBUG */
524 #define FP_ICC (int (*)(const void *,const void *))
525 #define ssl_put_cipher_by_char(ssl,ciph,ptr) \
526 ((ssl)->method->put_cipher_by_char((ciph),(ptr)))
527 #define ssl_get_cipher_by_char(ssl,ptr) \
528 ((ssl)->method->get_cipher_by_char(ptr))
530 /* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff
531 * It is a bit of a mess of functions, but hell, think of it as
532 * an opaque structure :-) */
533 typedef struct ssl3_enc_method
535 int (*enc)(SSL *, int);
536 int (*mac)(SSL *, unsigned char *, int);
537 int (*setup_key_block)(SSL *);
538 int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int);
539 int (*change_cipher_state)(SSL *, int);
540 int (*final_finish_mac)(SSL *, const char *, int, unsigned char *);
541 int finish_mac_length;
542 int (*cert_verify_mac)(SSL *, int, unsigned char *);
543 const char *client_finished_label;
544 int client_finished_label_len;
545 const char *server_finished_label;
546 int server_finished_label_len;
547 int (*alert_value)(int);
550 /* Used for holding the relevant compression methods loaded into SSL_CTX */
551 typedef struct ssl3_comp_st
553 int comp_id; /* The identifier byte for this compression type */
554 char *name; /* Text name used for the compression type */
555 COMP_METHOD *method; /* The method :-) */
558 extern SSL3_ENC_METHOD ssl3_undef_enc_method;
559 OPENSSL_EXTERN SSL_CIPHER ssl2_ciphers[];
560 OPENSSL_EXTERN SSL_CIPHER ssl3_ciphers[];
563 SSL_METHOD *ssl_bad_method(int ver);
565 extern SSL3_ENC_METHOD TLSv1_enc_data;
566 extern SSL3_ENC_METHOD SSLv3_enc_data;
567 extern SSL3_ENC_METHOD DTLSv1_enc_data;
569 #define IMPLEMENT_tls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
570 const SSL_METHOD *func_name(void) \
572 static const SSL_METHOD func_name##_data= { \
584 ssl3_renegotiate_check, \
588 ssl3_dispatch_alert, \
591 ssl3_get_cipher_by_char, \
592 ssl3_put_cipher_by_char, \
597 tls1_default_timeout, \
599 ssl_undefined_void_function, \
600 ssl3_callback_ctrl, \
601 ssl3_ctx_callback_ctrl, \
603 return &func_name##_data; \
606 #define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
607 const SSL_METHOD *func_name(void) \
609 static const SSL_METHOD func_name##_data= { \
621 ssl3_renegotiate_check, \
625 ssl3_dispatch_alert, \
628 ssl3_get_cipher_by_char, \
629 ssl3_put_cipher_by_char, \
634 ssl3_default_timeout, \
636 ssl_undefined_void_function, \
637 ssl3_callback_ctrl, \
638 ssl3_ctx_callback_ctrl, \
640 return &func_name##_data; \
643 #define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \
644 const SSL_METHOD *func_name(void) \
646 static const SSL_METHOD func_name##_data= { \
656 ssl_undefined_function, \
657 ssl_undefined_function, \
662 ssl3_dispatch_alert, \
665 ssl23_get_cipher_by_char, \
666 ssl23_put_cipher_by_char, \
667 ssl_undefined_const_function, \
671 ssl23_default_timeout, \
672 &ssl3_undef_enc_method, \
673 ssl_undefined_void_function, \
674 ssl3_callback_ctrl, \
675 ssl3_ctx_callback_ctrl, \
677 return &func_name##_data; \
680 #define IMPLEMENT_ssl2_meth_func(func_name, s_accept, s_connect, s_get_meth) \
681 const SSL_METHOD *func_name(void) \
683 static const SSL_METHOD func_name##_data= { \
685 ssl2_new, /* local */ \
686 ssl2_clear, /* local */ \
687 ssl2_free, /* local */ \
694 ssl_ok, /* NULL - renegotiate */ \
695 ssl_ok, /* NULL - check renegotiate */ \
696 NULL, /* NULL - ssl_get_message */ \
697 NULL, /* NULL - ssl_get_record */ \
698 NULL, /* NULL - ssl_write_bytes */ \
699 NULL, /* NULL - dispatch_alert */ \
700 ssl2_ctrl, /* local */ \
701 ssl2_ctx_ctrl, /* local */ \
702 ssl2_get_cipher_by_char, \
703 ssl2_put_cipher_by_char, \
708 ssl2_default_timeout, \
709 &ssl3_undef_enc_method, \
710 ssl_undefined_void_function, \
711 ssl2_callback_ctrl, /* local */ \
712 ssl2_ctx_callback_ctrl, /* local */ \
714 return &func_name##_data; \
717 #define IMPLEMENT_dtls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
718 const SSL_METHOD *func_name(void) \
720 static const SSL_METHOD func_name##_data= { \
732 ssl3_renegotiate_check, \
735 dtls1_write_app_data_bytes, \
736 dtls1_dispatch_alert, \
739 ssl3_get_cipher_by_char, \
740 ssl3_put_cipher_by_char, \
745 dtls1_default_timeout, \
747 ssl_undefined_void_function, \
748 ssl3_callback_ctrl, \
749 ssl3_ctx_callback_ctrl, \
751 return &func_name##_data; \
754 void ssl_clear_cipher_ctx(SSL *s);
755 int ssl_clear_bad_session(SSL *s);
756 CERT *ssl_cert_new(void);
757 CERT *ssl_cert_dup(CERT *cert);
758 int ssl_cert_inst(CERT **o);
759 void ssl_cert_free(CERT *c);
760 SESS_CERT *ssl_sess_cert_new(void);
761 void ssl_sess_cert_free(SESS_CERT *sc);
762 int ssl_set_peer_cert_type(SESS_CERT *c, int type);
763 int ssl_get_new_session(SSL *s, int session);
764 int ssl_get_prev_session(SSL *s, unsigned char *session,int len, const unsigned char *limit);
765 int ssl_cipher_id_cmp(const SSL_CIPHER *a,const SSL_CIPHER *b);
766 int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
767 const SSL_CIPHER * const *bp);
768 STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
769 STACK_OF(SSL_CIPHER) **skp);
770 int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
771 int (*put_cb)(const SSL_CIPHER *, unsigned char *));
772 STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
773 STACK_OF(SSL_CIPHER) **pref,
774 STACK_OF(SSL_CIPHER) **sorted,
775 const char *rule_str);
776 void ssl_update_cache(SSL *s, int mode);
777 int ssl_cipher_get_evp(const SSL_SESSION *s,const EVP_CIPHER **enc,
778 const EVP_MD **md,int *mac_pkey_type,int *mac_secret_size, SSL_COMP **comp);
779 int ssl_get_handshake_digest(int i,long *mask,const EVP_MD **md);
780 int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk);
781 int ssl_undefined_function(SSL *s);
782 int ssl_undefined_void_function(void);
783 int ssl_undefined_const_function(const SSL *s);
784 X509 *ssl_get_server_send_cert(SSL *);
785 EVP_PKEY *ssl_get_sign_pkey(SSL *,SSL_CIPHER *);
786 int ssl_cert_type(X509 *x,EVP_PKEY *pkey);
787 void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher);
788 STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
789 int ssl_verify_alarm_type(long type);
790 void ssl_load_ciphers(void);
792 int ssl2_enc_init(SSL *s, int client);
793 int ssl2_generate_key_material(SSL *s);
794 void ssl2_enc(SSL *s,int send_data);
795 void ssl2_mac(SSL *s,unsigned char *mac,int send_data);
796 SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p);
797 int ssl2_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
798 int ssl2_part_read(SSL *s, unsigned long f, int i);
799 int ssl2_do_write(SSL *s);
800 int ssl2_set_certificate(SSL *s, int type, int len, const unsigned char *data);
801 void ssl2_return_error(SSL *s,int reason);
802 void ssl2_write_error(SSL *s);
803 int ssl2_num_ciphers(void);
804 SSL_CIPHER *ssl2_get_cipher(unsigned int u);
805 int ssl2_new(SSL *s);
806 void ssl2_free(SSL *s);
807 int ssl2_accept(SSL *s);
808 int ssl2_connect(SSL *s);
809 int ssl2_read(SSL *s, void *buf, int len);
810 int ssl2_peek(SSL *s, void *buf, int len);
811 int ssl2_write(SSL *s, const void *buf, int len);
812 int ssl2_shutdown(SSL *s);
813 void ssl2_clear(SSL *s);
814 long ssl2_ctrl(SSL *s,int cmd, long larg, void *parg);
815 long ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
816 long ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
817 long ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
818 int ssl2_pending(const SSL *s);
819 long ssl2_default_timeout(void );
821 SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
822 int ssl3_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
823 void ssl3_init_finished_mac(SSL *s);
824 int ssl3_send_server_certificate(SSL *s);
825 int ssl3_send_newsession_ticket(SSL *s);
826 int ssl3_get_finished(SSL *s,int state_a,int state_b);
827 int ssl3_setup_key_block(SSL *s);
828 int ssl3_send_change_cipher_spec(SSL *s,int state_a,int state_b);
829 int ssl3_change_cipher_state(SSL *s,int which);
830 void ssl3_cleanup_key_block(SSL *s);
831 int ssl3_do_write(SSL *s,int type);
832 void ssl3_send_alert(SSL *s,int level, int desc);
833 int ssl3_generate_master_secret(SSL *s, unsigned char *out,
834 unsigned char *p, int len);
835 int ssl3_get_req_cert_type(SSL *s,unsigned char *p);
836 long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
837 int ssl3_send_finished(SSL *s, int a, int b, const char *sender,int slen);
838 int ssl3_num_ciphers(void);
839 SSL_CIPHER *ssl3_get_cipher(unsigned int u);
840 int ssl3_renegotiate(SSL *ssl);
841 int ssl3_renegotiate_check(SSL *ssl);
842 int ssl3_dispatch_alert(SSL *s);
843 int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
844 int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
845 int ssl3_final_finish_mac(SSL *s, const char *sender, int slen,unsigned char *p);
846 int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
847 void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
848 int ssl3_enc(SSL *s, int send_data);
849 int ssl3_mac(SSL *ssl, unsigned char *md, int send_data);
850 void ssl3_free_digest_list(SSL *s);
851 unsigned long ssl3_output_cert_chain(SSL *s, X509 *x);
852 SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *clnt,
853 STACK_OF(SSL_CIPHER) *srvr);
854 int ssl3_setup_buffers(SSL *s);
855 void ssl3_digest_cached_records(SSL *s);
856 int ssl3_new(SSL *s);
857 void ssl3_free(SSL *s);
858 int ssl3_accept(SSL *s);
859 int ssl3_connect(SSL *s);
860 int ssl3_read(SSL *s, void *buf, int len);
861 int ssl3_peek(SSL *s, void *buf, int len);
862 int ssl3_write(SSL *s, const void *buf, int len);
863 int ssl3_shutdown(SSL *s);
864 void ssl3_clear(SSL *s);
865 long ssl3_ctrl(SSL *s,int cmd, long larg, void *parg);
866 long ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
867 long ssl3_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
868 long ssl3_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
869 int ssl3_pending(const SSL *s);
871 void ssl3_record_sequence_update(unsigned char *seq);
872 int ssl3_do_change_cipher_spec(SSL *ssl);
873 long ssl3_default_timeout(void );
875 int ssl23_num_ciphers(void );
876 SSL_CIPHER *ssl23_get_cipher(unsigned int u);
877 int ssl23_read(SSL *s, void *buf, int len);
878 int ssl23_peek(SSL *s, void *buf, int len);
879 int ssl23_write(SSL *s, const void *buf, int len);
880 int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
881 SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
882 long ssl23_default_timeout(void );
884 long tls1_default_timeout(void);
885 int dtls1_do_write(SSL *s,int type);
886 int ssl3_read_n(SSL *s, int n, int max, int extend);
887 int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
888 int ssl3_do_compress(SSL *ssl);
889 int ssl3_do_uncompress(SSL *ssl);
890 int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
892 unsigned char *dtls1_set_message_header(SSL *s,
893 unsigned char *p, unsigned char mt, unsigned long len,
894 unsigned long frag_off, unsigned long frag_len);
896 int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
897 int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
899 int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
900 int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen);
901 unsigned long dtls1_output_cert_chain(SSL *s, X509 *x);
902 int dtls1_read_failed(SSL *s, int code);
903 int dtls1_buffer_message(SSL *s, int ccs);
904 int dtls1_retransmit_message(SSL *s, unsigned short seq,
905 unsigned long frag_off, int *found);
906 void dtls1_clear_record_buffer(SSL *s);
907 void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr);
908 void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr);
909 void dtls1_reset_seq_numbers(SSL *s, int rw);
910 long dtls1_default_timeout(void);
913 /* some client-only functions */
914 int ssl3_client_hello(SSL *s);
915 int ssl3_get_server_hello(SSL *s);
916 int ssl3_get_certificate_request(SSL *s);
917 int ssl3_get_new_session_ticket(SSL *s);
918 int ssl3_get_server_done(SSL *s);
919 int ssl3_send_client_verify(SSL *s);
920 int ssl3_send_client_certificate(SSL *s);
921 int ssl3_send_client_key_exchange(SSL *s);
922 int ssl3_get_key_exchange(SSL *s);
923 int ssl3_get_server_certificate(SSL *s);
924 int ssl3_check_cert_and_algorithm(SSL *s);
926 int dtls1_client_hello(SSL *s);
927 int dtls1_send_client_certificate(SSL *s);
928 int dtls1_send_client_key_exchange(SSL *s);
929 int dtls1_send_client_verify(SSL *s);
931 /* some server-only functions */
932 int ssl3_get_client_hello(SSL *s);
933 int ssl3_send_server_hello(SSL *s);
934 int ssl3_send_hello_request(SSL *s);
935 int ssl3_send_server_key_exchange(SSL *s);
936 int ssl3_send_certificate_request(SSL *s);
937 int ssl3_send_server_done(SSL *s);
938 int ssl3_check_client_hello(SSL *s);
939 int ssl3_get_client_certificate(SSL *s);
940 int ssl3_get_client_key_exchange(SSL *s);
941 int ssl3_get_cert_verify(SSL *s);
943 int dtls1_send_hello_request(SSL *s);
944 int dtls1_send_server_hello(SSL *s);
945 int dtls1_send_server_certificate(SSL *s);
946 int dtls1_send_server_key_exchange(SSL *s);
947 int dtls1_send_certificate_request(SSL *s);
948 int dtls1_send_server_done(SSL *s);
952 int ssl23_accept(SSL *s);
953 int ssl23_connect(SSL *s);
954 int ssl23_read_bytes(SSL *s, int n);
955 int ssl23_write_bytes(SSL *s);
957 int tls1_new(SSL *s);
958 void tls1_free(SSL *s);
959 void tls1_clear(SSL *s);
960 long tls1_ctrl(SSL *s,int cmd, long larg, void *parg);
961 long tls1_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
963 int dtls1_new(SSL *s);
964 int dtls1_accept(SSL *s);
965 int dtls1_connect(SSL *s);
966 void dtls1_free(SSL *s);
967 void dtls1_clear(SSL *s);
968 long dtls1_ctrl(SSL *s,int cmd, long larg, void *parg);
970 long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
971 int dtls1_get_record(SSL *s);
972 int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
973 unsigned int len, int create_empty_fragement);
974 int dtls1_dispatch_alert(SSL *s);
975 int dtls1_enc(SSL *s, int snd);
977 int ssl_init_wbio_buffer(SSL *s, int push);
978 void ssl_free_wbio_buffer(SSL *s);
980 int tls1_change_cipher_state(SSL *s, int which);
981 int tls1_setup_key_block(SSL *s);
982 int tls1_enc(SSL *s, int snd);
983 int tls1_final_finish_mac(SSL *s,
984 const char *str, int slen, unsigned char *p);
985 int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *p);
986 int tls1_mac(SSL *ssl, unsigned char *md, int snd);
987 int tls1_generate_master_secret(SSL *s, unsigned char *out,
988 unsigned char *p, int len);
989 int tls1_alert_code(int code);
990 int ssl3_alert_code(int code);
993 #ifndef OPENSSL_NO_ECDH
994 int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
997 SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
999 #ifndef OPENSSL_NO_EC
1000 int tls1_ec_curve_id2nid(int curve_id);
1001 int tls1_ec_nid2curve_id(int nid);
1002 #endif /* OPENSSL_NO_EC */
1004 #ifndef OPENSSL_NO_TLSEXT
1005 unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned char *limit);
1006 unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned char *limit);
1007 int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
1008 int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
1009 int ssl_prepare_clienthello_tlsext(SSL *s);
1010 int ssl_prepare_serverhello_tlsext(SSL *s);
1011 int ssl_check_clienthello_tlsext(SSL *s);
1012 int ssl_check_serverhello_tlsext(SSL *s);
1013 #ifdef OPENSSL_NO_SHA256
1014 #define tlsext_tick_md EVP_sha1
1016 #define tlsext_tick_md EVP_sha256
1018 int tls1_process_ticket(SSL *s, unsigned char *session_id, int len,
1019 const unsigned char *limit, SSL_SESSION **ret);
1021 EVP_MD_CTX* ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md) ;
1022 void ssl_clear_hash_ctx(EVP_MD_CTX **hash);