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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 n2l6(c,l) (l =((BN_ULLONG)(*((c)++)))<<40, \
193 l|=((BN_ULLONG)(*((c)++)))<<32, \
194 l|=((BN_ULLONG)(*((c)++)))<<24, \
195 l|=((BN_ULLONG)(*((c)++)))<<16, \
196 l|=((BN_ULLONG)(*((c)++)))<< 8, \
197 l|=((BN_ULLONG)(*((c)++))))
198
199/* NOTE - c is not incremented as per l2c */
200#define l2cn(l1,l2,c,n) { \
201 c+=n; \
202 switch (n) { \
203 case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
204 case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
205 case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
206 case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \
207 case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
208 case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
209 case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
210 case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \
211 } \
212 }
213
214#define n2s(c,s) ((s=(((unsigned int)(c[0]))<< 8)| \
215 (((unsigned int)(c[1])) )),c+=2)
216#define s2n(s,c) ((c[0]=(unsigned char)(((s)>> 8)&0xff), \
217 c[1]=(unsigned char)(((s) )&0xff)),c+=2)
218
219#define n2l3(c,l) ((l =(((unsigned long)(c[0]))<<16)| \
220 (((unsigned long)(c[1]))<< 8)| \
221 (((unsigned long)(c[2])) )),c+=3)
222
223#define l2n3(l,c) ((c[0]=(unsigned char)(((l)>>16)&0xff), \
224 c[1]=(unsigned char)(((l)>> 8)&0xff), \
225 c[2]=(unsigned char)(((l) )&0xff)),c+=3)
226
227/* LOCAL STUFF */
228
229#define SSL_DECRYPT 0
230#define SSL_ENCRYPT 1
231
232#define TWO_BYTE_BIT 0x80
233#define SEC_ESC_BIT 0x40
234#define TWO_BYTE_MASK 0x7fff
235#define THREE_BYTE_MASK 0x3fff
236
237#define INC32(a) ((a)=((a)+1)&0xffffffffL)
238#define DEC32(a) ((a)=((a)-1)&0xffffffffL)
239#define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */
240
241/*
242 * Define the Bitmasks for SSL_CIPHER.algorithms.
243 * This bits are used packed as dense as possible. If new methods/ciphers
244 * etc will be added, the bits a likely to change, so this information
245 * is for internal library use only, even though SSL_CIPHER.algorithms
246 * can be publicly accessed.
247 * Use the according functions for cipher management instead.
248 *
249 * The bit mask handling in the selection and sorting scheme in
250 * ssl_create_cipher_list() has only limited capabilities, reflecting
251 * that the different entities within are mutually exclusive:
252 * ONLY ONE BIT PER MASK CAN BE SET AT A TIME.
253 */
254#define SSL_MKEY_MASK 0x000000FFL
255#define SSL_kRSA 0x00000001L /* RSA key exchange */
256#define SSL_kDHr 0x00000002L /* DH cert RSA CA cert */
257#define SSL_kDHd 0x00000004L /* DH cert DSA CA cert */
258#define SSL_kFZA 0x00000008L
259#define SSL_kEDH 0x00000010L /* tmp DH key no DH cert */
260#define SSL_kKRB5 0x00000020L /* Kerberos5 key exchange */
261#define SSL_kECDH 0x00000040L /* ECDH w/ long-term keys */
262#define SSL_kECDHE 0x00000080L /* ephemeral ECDH */
263#define SSL_EDH (SSL_kEDH|(SSL_AUTH_MASK^SSL_aNULL))
264
265#define SSL_AUTH_MASK 0x00007F00L
266#define SSL_aRSA 0x00000100L /* Authenticate with RSA */
267#define SSL_aDSS 0x00000200L /* Authenticate with DSS */
268#define SSL_DSS SSL_aDSS
269#define SSL_aFZA 0x00000400L
270#define SSL_aNULL 0x00000800L /* no Authenticate, ADH */
271#define SSL_aDH 0x00001000L /* no Authenticate, ADH */
272#define SSL_aKRB5 0x00002000L /* Authenticate with KRB5 */
273#define SSL_aECDSA 0x00004000L /* Authenticate with ECDSA */
274
275#define SSL_NULL (SSL_eNULL)
276#define SSL_ADH (SSL_kEDH|SSL_aNULL)
277#define SSL_RSA (SSL_kRSA|SSL_aRSA)
278#define SSL_DH (SSL_kDHr|SSL_kDHd|SSL_kEDH)
279#define SSL_ECDH (SSL_kECDH|SSL_kECDHE)
280#define SSL_FZA (SSL_aFZA|SSL_kFZA|SSL_eFZA)
281#define SSL_KRB5 (SSL_kKRB5|SSL_aKRB5)
282
283#define SSL_ENC_MASK 0x1C3F8000L
284#define SSL_DES 0x00008000L
285#define SSL_3DES 0x00010000L
286#define SSL_RC4 0x00020000L
287#define SSL_RC2 0x00040000L
288#define SSL_IDEA 0x00080000L
289#define SSL_eFZA 0x00100000L
290#define SSL_eNULL 0x00200000L
291#define SSL_AES 0x04000000L
292#define SSL_CAMELLIA 0x08000000L
293#define SSL_SEED 0x10000000L
294
295#define SSL_MAC_MASK 0x00c00000L
296#define SSL_MD5 0x00400000L
297#define SSL_SHA1 0x00800000L
298#define SSL_SHA (SSL_SHA1)
299
300#define SSL_SSL_MASK 0x03000000L
301#define SSL_SSLV2 0x01000000L
302#define SSL_SSLV3 0x02000000L
303#define SSL_TLSV1 SSL_SSLV3 /* for now */
304
305/* we have used 1fffffff - 3 bits left to go. */
306
307/*
308 * Export and cipher strength information. For each cipher we have to decide
309 * whether it is exportable or not. This information is likely to change
310 * over time, since the export control rules are no static technical issue.
311 *
312 * Independent of the export flag the cipher strength is sorted into classes.
313 * SSL_EXP40 was denoting the 40bit US export limit of past times, which now
314 * is at 56bit (SSL_EXP56). If the exportable cipher class is going to change
315 * again (eg. to 64bit) the use of "SSL_EXP*" becomes blurred even more,
316 * since SSL_EXP64 could be similar to SSL_LOW.
317 * For this reason SSL_MICRO and SSL_MINI macros are included to widen the
318 * namespace of SSL_LOW-SSL_HIGH to lower values. As development of speed
319 * and ciphers goes, another extension to SSL_SUPER and/or SSL_ULTRA would
320 * be possible.
321 */
322#define SSL_EXP_MASK 0x00000003L
323#define SSL_NOT_EXP 0x00000001L
324#define SSL_EXPORT 0x00000002L
325
326#define SSL_STRONG_MASK 0x000000fcL
327#define SSL_STRONG_NONE 0x00000004L
328#define SSL_EXP40 0x00000008L
329#define SSL_MICRO (SSL_EXP40)
330#define SSL_EXP56 0x00000010L
331#define SSL_MINI (SSL_EXP56)
332#define SSL_LOW 0x00000020L
333#define SSL_MEDIUM 0x00000040L
334#define SSL_HIGH 0x00000080L
335#define SSL_FIPS 0x00000100L
336
337/* we have used 000001ff - 23 bits left to go */
338
339/*
340 * Macros to check the export status and cipher strength for export ciphers.
341 * Even though the macros for EXPORT and EXPORT40/56 have similar names,
342 * their meaning is different:
343 * *_EXPORT macros check the 'exportable' status.
344 * *_EXPORT40/56 macros are used to check whether a certain cipher strength
345 * is given.
346 * Since the SSL_IS_EXPORT* and SSL_EXPORT* macros depend on the correct
347 * algorithm structure element to be passed (algorithms, algo_strength) and no
348 * typechecking can be done as they are all of type unsigned long, their
349 * direct usage is discouraged.
350 * Use the SSL_C_* macros instead.
351 */
352#define SSL_IS_EXPORT(a) ((a)&SSL_EXPORT)
353#define SSL_IS_EXPORT56(a) ((a)&SSL_EXP56)
354#define SSL_IS_EXPORT40(a) ((a)&SSL_EXP40)
355#define SSL_C_IS_EXPORT(c) SSL_IS_EXPORT((c)->algo_strength)
356#define SSL_C_IS_EXPORT56(c) SSL_IS_EXPORT56((c)->algo_strength)
357#define SSL_C_IS_EXPORT40(c) SSL_IS_EXPORT40((c)->algo_strength)
358
359#define SSL_EXPORT_KEYLENGTH(a,s) (SSL_IS_EXPORT40(s) ? 5 : \
360 ((a)&SSL_ENC_MASK) == SSL_DES ? 8 : 7)
361#define SSL_EXPORT_PKEYLENGTH(a) (SSL_IS_EXPORT40(a) ? 512 : 1024)
362#define SSL_C_EXPORT_KEYLENGTH(c) SSL_EXPORT_KEYLENGTH((c)->algorithms, \
363 (c)->algo_strength)
364#define SSL_C_EXPORT_PKEYLENGTH(c) SSL_EXPORT_PKEYLENGTH((c)->algo_strength)
365
366
367#define SSL_ALL 0xffffffffL
368#define SSL_ALL_CIPHERS (SSL_MKEY_MASK|SSL_AUTH_MASK|SSL_ENC_MASK|\
369 SSL_MAC_MASK)
370#define SSL_ALL_STRENGTHS (SSL_EXP_MASK|SSL_STRONG_MASK)
371
372/* Mostly for SSLv3 */
373#define SSL_PKEY_RSA_ENC 0
374#define SSL_PKEY_RSA_SIGN 1
375#define SSL_PKEY_DSA_SIGN 2
376#define SSL_PKEY_DH_RSA 3
377#define SSL_PKEY_DH_DSA 4
378#define SSL_PKEY_ECC 5
379#define SSL_PKEY_NUM 6
380
381/* SSL_kRSA <- RSA_ENC | (RSA_TMP & RSA_SIGN) |
382 * <- (EXPORT & (RSA_ENC | RSA_TMP) & RSA_SIGN)
383 * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN)
384 * SSL_kEDH <- RSA_ENC | RSA_SIGN | DSA_SIGN
385 * SSL_aRSA <- RSA_ENC | RSA_SIGN
386 * SSL_aDSS <- DSA_SIGN
387 */
388
389/*
390#define CERT_INVALID 0
391#define CERT_PUBLIC_KEY 1
392#define CERT_PRIVATE_KEY 2
393*/
394
395#ifndef OPENSSL_NO_EC
396/* From ECC-TLS draft, used in encoding the curve type in
397 * ECParameters
398 */
399#define EXPLICIT_PRIME_CURVE_TYPE 1
400#define EXPLICIT_CHAR2_CURVE_TYPE 2
401#define NAMED_CURVE_TYPE 3
402#endif /* OPENSSL_NO_EC */
403
404typedef struct cert_pkey_st
405 {
406 X509 *x509;
407 EVP_PKEY *privatekey;
408 } CERT_PKEY;
409
410typedef struct cert_st
411 {
412 /* Current active set */
413 CERT_PKEY *key; /* ALWAYS points to an element of the pkeys array
414 * Probably it would make more sense to store
415 * an index, not a pointer. */
416
417 /* The following masks are for the key and auth
418 * algorithms that are supported by the certs below */
419 int valid;
420 unsigned long mask;
421 unsigned long export_mask;
422#ifndef OPENSSL_NO_RSA
423 RSA *rsa_tmp;
424 RSA *(*rsa_tmp_cb)(SSL *ssl,int is_export,int keysize);
425#endif
426#ifndef OPENSSL_NO_DH
427 DH *dh_tmp;
428 DH *(*dh_tmp_cb)(SSL *ssl,int is_export,int keysize);
429#endif
430#ifndef OPENSSL_NO_ECDH
431 EC_KEY *ecdh_tmp;
432 /* Callback for generating ephemeral ECDH keys */
433 EC_KEY *(*ecdh_tmp_cb)(SSL *ssl,int is_export,int keysize);
434#endif
435
436 CERT_PKEY pkeys[SSL_PKEY_NUM];
437
438 int references; /* >1 only if SSL_copy_session_id is used */
439 } CERT;
440
441
442typedef struct sess_cert_st
443 {
444 STACK_OF(X509) *cert_chain; /* as received from peer (not for SSL2) */
445
446 /* The 'peer_...' members are used only by clients. */
447 int peer_cert_type;
448
449 CERT_PKEY *peer_key; /* points to an element of peer_pkeys (never NULL!) */
450 CERT_PKEY peer_pkeys[SSL_PKEY_NUM];
451 /* Obviously we don't have the private keys of these,
452 * so maybe we shouldn't even use the CERT_PKEY type here. */
453
454#ifndef OPENSSL_NO_RSA
455 RSA *peer_rsa_tmp; /* not used for SSL 2 */
456#endif
457#ifndef OPENSSL_NO_DH
458 DH *peer_dh_tmp; /* not used for SSL 2 */
459#endif
460#ifndef OPENSSL_NO_ECDH
461 EC_KEY *peer_ecdh_tmp;
462#endif
463
464 int references; /* actually always 1 at the moment */
465 } SESS_CERT;
466
467
468/*#define MAC_DEBUG */
469
470/*#define ERR_DEBUG */
471/*#define ABORT_DEBUG */
472/*#define PKT_DEBUG 1 */
473/*#define DES_DEBUG */
474/*#define DES_OFB_DEBUG */
475/*#define SSL_DEBUG */
476/*#define RSA_DEBUG */
477/*#define IDEA_DEBUG */
478
479#define FP_ICC (int (*)(const void *,const void *))
480#define ssl_put_cipher_by_char(ssl,ciph,ptr) \
481 ((ssl)->method->put_cipher_by_char((ciph),(ptr)))
482#define ssl_get_cipher_by_char(ssl,ptr) \
483 ((ssl)->method->get_cipher_by_char(ptr))
484
485/* This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff
486 * It is a bit of a mess of functions, but hell, think of it as
487 * an opaque structure :-) */
488typedef struct ssl3_enc_method
489 {
490 int (*enc)(SSL *, int);
491 int (*mac)(SSL *, unsigned char *, int);
492 int (*setup_key_block)(SSL *);
493 int (*generate_master_secret)(SSL *, unsigned char *, unsigned char *, int);
494 int (*change_cipher_state)(SSL *, int);
495 int (*final_finish_mac)(SSL *, EVP_MD_CTX *, EVP_MD_CTX *, const char *, int, unsigned char *);
496 int finish_mac_length;
497 int (*cert_verify_mac)(SSL *, EVP_MD_CTX *, unsigned char *);
498 const char *client_finished_label;
499 int client_finished_label_len;
500 const char *server_finished_label;
501 int server_finished_label_len;
502 int (*alert_value)(int);
503 } SSL3_ENC_METHOD;
504
505#ifndef OPENSSL_NO_COMP
506/* Used for holding the relevant compression methods loaded into SSL_CTX */
507typedef struct ssl3_comp_st
508 {
509 int comp_id; /* The identifier byte for this compression type */
510 char *name; /* Text name used for the compression type */
511 COMP_METHOD *method; /* The method :-) */
512 } SSL3_COMP;
513#endif
514
515extern SSL3_ENC_METHOD ssl3_undef_enc_method;
516OPENSSL_EXTERN SSL_CIPHER ssl2_ciphers[];
517OPENSSL_EXTERN SSL_CIPHER ssl3_ciphers[];
518
519
520SSL_METHOD *ssl_bad_method(int ver);
521SSL_METHOD *sslv2_base_method(void);
522SSL_METHOD *sslv23_base_method(void);
523SSL_METHOD *sslv3_base_method(void);
524
525extern SSL3_ENC_METHOD TLSv1_enc_data;
526extern SSL3_ENC_METHOD SSLv3_enc_data;
527extern SSL3_ENC_METHOD DTLSv1_enc_data;
528
529#define IMPLEMENT_tls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
530SSL_METHOD *func_name(void) \
531 { \
532 static SSL_METHOD func_name##_data= { \
533 TLS1_VERSION, \
534 tls1_new, \
535 tls1_clear, \
536 tls1_free, \
537 s_accept, \
538 s_connect, \
539 ssl3_read, \
540 ssl3_peek, \
541 ssl3_write, \
542 ssl3_shutdown, \
543 ssl3_renegotiate, \
544 ssl3_renegotiate_check, \
545 ssl3_get_message, \
546 ssl3_read_bytes, \
547 ssl3_write_bytes, \
548 ssl3_dispatch_alert, \
549 ssl3_ctrl, \
550 ssl3_ctx_ctrl, \
551 ssl3_get_cipher_by_char, \
552 ssl3_put_cipher_by_char, \
553 ssl3_pending, \
554 ssl3_num_ciphers, \
555 ssl3_get_cipher, \
556 s_get_meth, \
557 tls1_default_timeout, \
558 &TLSv1_enc_data, \
559 ssl_undefined_void_function, \
560 ssl3_callback_ctrl, \
561 ssl3_ctx_callback_ctrl, \
562 }; \
563 return &func_name##_data; \
564 }
565
566#define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect, s_get_meth) \
567SSL_METHOD *func_name(void) \
568 { \
569 static SSL_METHOD func_name##_data= { \
570 SSL3_VERSION, \
571 ssl3_new, \
572 ssl3_clear, \
573 ssl3_free, \
574 s_accept, \
575 s_connect, \
576 ssl3_read, \
577 ssl3_peek, \
578 ssl3_write, \
579 ssl3_shutdown, \
580 ssl3_renegotiate, \
581 ssl3_renegotiate_check, \
582 ssl3_get_message, \
583 ssl3_read_bytes, \
584 ssl3_write_bytes, \
585 ssl3_dispatch_alert, \
586 ssl3_ctrl, \
587 ssl3_ctx_ctrl, \
588 ssl3_get_cipher_by_char, \
589 ssl3_put_cipher_by_char, \
590 ssl3_pending, \
591 ssl3_num_ciphers, \
592 ssl3_get_cipher, \
593 s_get_meth, \
594 ssl3_default_timeout, \
595 &SSLv3_enc_data, \
596 ssl_undefined_void_function, \
597 ssl3_callback_ctrl, \
598 ssl3_ctx_callback_ctrl, \
599 }; \
600 return &func_name##_data; \
601 }
602
603#define IMPLEMENT_ssl23_meth_func(func_name, s_accept, s_connect, s_get_meth) \
604SSL_METHOD *func_name(void) \
605 { \
606 static SSL_METHOD func_name##_data= { \
607 TLS1_VERSION, \
608 tls1_new, \
609 tls1_clear, \
610 tls1_free, \
611 s_accept, \
612 s_connect, \
613 ssl23_read, \
614 ssl23_peek, \
615 ssl23_write, \
616 ssl_undefined_function, \
617 ssl_undefined_function, \
618 ssl_ok, \
619 ssl3_get_message, \
620 ssl3_read_bytes, \
621 ssl3_write_bytes, \
622 ssl3_dispatch_alert, \
623 ssl3_ctrl, \
624 ssl3_ctx_ctrl, \
625 ssl23_get_cipher_by_char, \
626 ssl23_put_cipher_by_char, \
627 ssl_undefined_const_function, \
628 ssl23_num_ciphers, \
629 ssl23_get_cipher, \
630 s_get_meth, \
631 ssl23_default_timeout, \
632 &ssl3_undef_enc_method, \
633 ssl_undefined_void_function, \
634 ssl3_callback_ctrl, \
635 ssl3_ctx_callback_ctrl, \
636 }; \
637 return &func_name##_data; \
638 }
639
640#define IMPLEMENT_ssl2_meth_func(func_name, s_accept, s_connect, s_get_meth) \
641SSL_METHOD *func_name(void) \
642 { \
643 static SSL_METHOD func_name##_data= { \
644 SSL2_VERSION, \
645 ssl2_new, /* local */ \
646 ssl2_clear, /* local */ \
647 ssl2_free, /* local */ \
648 s_accept, \
649 s_connect, \
650 ssl2_read, \
651 ssl2_peek, \
652 ssl2_write, \
653 ssl2_shutdown, \
654 ssl_ok, /* NULL - renegotiate */ \
655 ssl_ok, /* NULL - check renegotiate */ \
656 NULL, /* NULL - ssl_get_message */ \
657 NULL, /* NULL - ssl_get_record */ \
658 NULL, /* NULL - ssl_write_bytes */ \
659 NULL, /* NULL - dispatch_alert */ \
660 ssl2_ctrl, /* local */ \
661 ssl2_ctx_ctrl, /* local */ \
662 ssl2_get_cipher_by_char, \
663 ssl2_put_cipher_by_char, \
664 ssl2_pending, \
665 ssl2_num_ciphers, \
666 ssl2_get_cipher, \
667 s_get_meth, \
668 ssl2_default_timeout, \
669 &ssl3_undef_enc_method, \
670 ssl_undefined_void_function, \
671 ssl2_callback_ctrl, /* local */ \
672 ssl2_ctx_callback_ctrl, /* local */ \
673 }; \
674 return &func_name##_data; \
675 }
676
677#define IMPLEMENT_dtls1_meth_func(func_name, s_accept, s_connect, s_get_meth) \
678SSL_METHOD *func_name(void) \
679 { \
680 static SSL_METHOD func_name##_data= { \
681 DTLS1_VERSION, \
682 dtls1_new, \
683 dtls1_clear, \
684 dtls1_free, \
685 s_accept, \
686 s_connect, \
687 ssl3_read, \
688 ssl3_peek, \
689 ssl3_write, \
690 ssl3_shutdown, \
691 ssl3_renegotiate, \
692 ssl3_renegotiate_check, \
693 dtls1_get_message, \
694 dtls1_read_bytes, \
695 dtls1_write_app_data_bytes, \
696 dtls1_dispatch_alert, \
697 ssl3_ctrl, \
698 ssl3_ctx_ctrl, \
699 ssl3_get_cipher_by_char, \
700 ssl3_put_cipher_by_char, \
701 ssl3_pending, \
702 ssl3_num_ciphers, \
703 dtls1_get_cipher, \
704 s_get_meth, \
705 dtls1_default_timeout, \
706 &DTLSv1_enc_data, \
707 ssl_undefined_void_function, \
708 ssl3_callback_ctrl, \
709 ssl3_ctx_callback_ctrl, \
710 }; \
711 return &func_name##_data; \
712 }
713
714void ssl_clear_cipher_ctx(SSL *s);
715int ssl_clear_bad_session(SSL *s);
716CERT *ssl_cert_new(void);
717CERT *ssl_cert_dup(CERT *cert);
718int ssl_cert_inst(CERT **o);
719void ssl_cert_free(CERT *c);
720SESS_CERT *ssl_sess_cert_new(void);
721void ssl_sess_cert_free(SESS_CERT *sc);
722int ssl_set_peer_cert_type(SESS_CERT *c, int type);
723int ssl_get_new_session(SSL *s, int session);
724int ssl_get_prev_session(SSL *s, unsigned char *session,int len, const unsigned char *limit);
725int ssl_cipher_id_cmp(const SSL_CIPHER *a,const SSL_CIPHER *b);
726int ssl_cipher_ptr_id_cmp(const SSL_CIPHER * const *ap,
727 const SSL_CIPHER * const *bp);
728STACK_OF(SSL_CIPHER) *ssl_bytes_to_cipher_list(SSL *s,unsigned char *p,int num,
729 STACK_OF(SSL_CIPHER) **skp);
730int ssl_cipher_list_to_bytes(SSL *s,STACK_OF(SSL_CIPHER) *sk,unsigned char *p,
731 int (*put_cb)(const SSL_CIPHER *, unsigned char *));
732STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth,
733 STACK_OF(SSL_CIPHER) **pref,
734 STACK_OF(SSL_CIPHER) **sorted,
735 const char *rule_str);
736void ssl_update_cache(SSL *s, int mode);
737int ssl_cipher_get_evp(const SSL_SESSION *s,const EVP_CIPHER **enc,
738 const EVP_MD **md,SSL_COMP **comp);
739int ssl_verify_cert_chain(SSL *s,STACK_OF(X509) *sk);
740int ssl_undefined_function(SSL *s);
741int ssl_undefined_void_function(void);
742int ssl_undefined_const_function(const SSL *s);
743X509 *ssl_get_server_send_cert(SSL *);
744EVP_PKEY *ssl_get_sign_pkey(SSL *,SSL_CIPHER *);
745int ssl_cert_type(X509 *x,EVP_PKEY *pkey);
746void ssl_set_cert_masks(CERT *c, SSL_CIPHER *cipher);
747STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s);
748int ssl_verify_alarm_type(long type);
749void ssl_load_ciphers(void);
750
751int ssl2_enc_init(SSL *s, int client);
752int ssl2_generate_key_material(SSL *s);
753void ssl2_enc(SSL *s,int send_data);
754void ssl2_mac(SSL *s,unsigned char *mac,int send_data);
755SSL_CIPHER *ssl2_get_cipher_by_char(const unsigned char *p);
756int ssl2_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
757int ssl2_part_read(SSL *s, unsigned long f, int i);
758int ssl2_do_write(SSL *s);
759int ssl2_set_certificate(SSL *s, int type, int len, const unsigned char *data);
760void ssl2_return_error(SSL *s,int reason);
761void ssl2_write_error(SSL *s);
762int ssl2_num_ciphers(void);
763SSL_CIPHER *ssl2_get_cipher(unsigned int u);
764int ssl2_new(SSL *s);
765void ssl2_free(SSL *s);
766int ssl2_accept(SSL *s);
767int ssl2_connect(SSL *s);
768int ssl2_read(SSL *s, void *buf, int len);
769int ssl2_peek(SSL *s, void *buf, int len);
770int ssl2_write(SSL *s, const void *buf, int len);
771int ssl2_shutdown(SSL *s);
772void ssl2_clear(SSL *s);
773long ssl2_ctrl(SSL *s,int cmd, long larg, void *parg);
774long ssl2_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
775long ssl2_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
776long ssl2_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
777int ssl2_pending(const SSL *s);
778long ssl2_default_timeout(void );
779
780SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p);
781int ssl3_put_cipher_by_char(const SSL_CIPHER *c,unsigned char *p);
782void ssl3_init_finished_mac(SSL *s);
783int ssl3_send_server_certificate(SSL *s);
784int ssl3_send_newsession_ticket(SSL *s);
785int ssl3_send_cert_status(SSL *s);
786int ssl3_get_finished(SSL *s,int state_a,int state_b);
787int ssl3_setup_key_block(SSL *s);
788int ssl3_send_change_cipher_spec(SSL *s,int state_a,int state_b);
789int ssl3_change_cipher_state(SSL *s,int which);
790void ssl3_cleanup_key_block(SSL *s);
791int ssl3_do_write(SSL *s,int type);
792void ssl3_send_alert(SSL *s,int level, int desc);
793int ssl3_generate_master_secret(SSL *s, unsigned char *out,
794 unsigned char *p, int len);
795int ssl3_get_req_cert_type(SSL *s,unsigned char *p);
796long ssl3_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
797int ssl3_send_finished(SSL *s, int a, int b, const char *sender,int slen);
798int ssl3_num_ciphers(void);
799SSL_CIPHER *ssl3_get_cipher(unsigned int u);
800int ssl3_renegotiate(SSL *ssl);
801int ssl3_renegotiate_check(SSL *ssl);
802int ssl3_dispatch_alert(SSL *s);
803int ssl3_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
804int ssl3_write_bytes(SSL *s, int type, const void *buf, int len);
805int ssl3_final_finish_mac(SSL *s, EVP_MD_CTX *ctx1, EVP_MD_CTX *ctx2,
806 const char *sender, int slen,unsigned char *p);
807int ssl3_cert_verify_mac(SSL *s, EVP_MD_CTX *in, unsigned char *p);
808void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len);
809int ssl3_enc(SSL *s, int send_data);
810int ssl3_mac(SSL *ssl, unsigned char *md, int send_data);
811unsigned long ssl3_output_cert_chain(SSL *s, X509 *x);
812SSL_CIPHER *ssl3_choose_cipher(SSL *ssl,STACK_OF(SSL_CIPHER) *clnt,
813 STACK_OF(SSL_CIPHER) *srvr);
814int ssl3_setup_buffers(SSL *s);
815int ssl3_new(SSL *s);
816void ssl3_free(SSL *s);
817int ssl3_accept(SSL *s);
818int ssl3_connect(SSL *s);
819int ssl3_read(SSL *s, void *buf, int len);
820int ssl3_peek(SSL *s, void *buf, int len);
821int ssl3_write(SSL *s, const void *buf, int len);
822int ssl3_shutdown(SSL *s);
823void ssl3_clear(SSL *s);
824long ssl3_ctrl(SSL *s,int cmd, long larg, void *parg);
825long ssl3_ctx_ctrl(SSL_CTX *s,int cmd, long larg, void *parg);
826long ssl3_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
827long ssl3_ctx_callback_ctrl(SSL_CTX *s,int cmd, void (*fp)(void));
828int ssl3_pending(const SSL *s);
829
830void ssl3_record_sequence_update(unsigned char *seq);
831int ssl3_do_change_cipher_spec(SSL *ssl);
832long ssl3_default_timeout(void );
833
834int ssl23_num_ciphers(void );
835SSL_CIPHER *ssl23_get_cipher(unsigned int u);
836int ssl23_read(SSL *s, void *buf, int len);
837int ssl23_peek(SSL *s, void *buf, int len);
838int ssl23_write(SSL *s, const void *buf, int len);
839int ssl23_put_cipher_by_char(const SSL_CIPHER *c, unsigned char *p);
840SSL_CIPHER *ssl23_get_cipher_by_char(const unsigned char *p);
841long ssl23_default_timeout(void );
842
843long tls1_default_timeout(void);
844int dtls1_do_write(SSL *s,int type);
845int ssl3_read_n(SSL *s, int n, int max, int extend);
846int dtls1_read_bytes(SSL *s, int type, unsigned char *buf, int len, int peek);
847int ssl3_do_compress(SSL *ssl);
848int ssl3_do_uncompress(SSL *ssl);
849int ssl3_write_pending(SSL *s, int type, const unsigned char *buf,
850 unsigned int len);
851unsigned char *dtls1_set_message_header(SSL *s,
852 unsigned char *p, unsigned char mt, unsigned long len,
853 unsigned long frag_off, unsigned long frag_len);
854
855int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf, int len);
856int dtls1_write_bytes(SSL *s, int type, const void *buf, int len);
857
858int dtls1_send_change_cipher_spec(SSL *s, int a, int b);
859int dtls1_send_finished(SSL *s, int a, int b, const char *sender, int slen);
860unsigned long dtls1_output_cert_chain(SSL *s, X509 *x);
861int dtls1_read_failed(SSL *s, int code);
862int dtls1_buffer_message(SSL *s, int ccs);
863int dtls1_retransmit_message(SSL *s, unsigned short seq,
864 unsigned long frag_off, int *found);
865void dtls1_clear_record_buffer(SSL *s);
866void dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr);
867void dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr);
868void dtls1_reset_seq_numbers(SSL *s, int rw);
869long dtls1_default_timeout(void);
870SSL_CIPHER *dtls1_get_cipher(unsigned int u);
871
872
873
874/* some client-only functions */
875int ssl3_client_hello(SSL *s);
876int ssl3_get_server_hello(SSL *s);
877int ssl3_get_certificate_request(SSL *s);
878int ssl3_get_new_session_ticket(SSL *s);
879int ssl3_get_cert_status(SSL *s);
880int ssl3_get_server_done(SSL *s);
881int ssl3_send_client_verify(SSL *s);
882int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey);
883int ssl3_send_client_certificate(SSL *s);
884int ssl3_send_client_key_exchange(SSL *s);
885int ssl3_get_key_exchange(SSL *s);
886int ssl3_get_server_certificate(SSL *s);
887int ssl3_check_cert_and_algorithm(SSL *s);
888
889int dtls1_client_hello(SSL *s);
890int dtls1_send_client_certificate(SSL *s);
891int dtls1_send_client_key_exchange(SSL *s);
892int dtls1_send_client_verify(SSL *s);
893
894/* some server-only functions */
895int ssl3_get_client_hello(SSL *s);
896int ssl3_send_server_hello(SSL *s);
897int ssl3_send_hello_request(SSL *s);
898int ssl3_send_server_key_exchange(SSL *s);
899int ssl3_send_certificate_request(SSL *s);
900int ssl3_send_server_done(SSL *s);
901int ssl3_check_client_hello(SSL *s);
902int ssl3_get_client_certificate(SSL *s);
903int ssl3_get_client_key_exchange(SSL *s);
904int ssl3_get_cert_verify(SSL *s);
905
906int dtls1_send_hello_request(SSL *s);
907int dtls1_send_server_hello(SSL *s);
908int dtls1_send_server_certificate(SSL *s);
909int dtls1_send_server_key_exchange(SSL *s);
910int dtls1_send_certificate_request(SSL *s);
911int dtls1_send_server_done(SSL *s);
912
913
914
915int ssl23_accept(SSL *s);
916int ssl23_connect(SSL *s);
917int ssl23_read_bytes(SSL *s, int n);
918int ssl23_write_bytes(SSL *s);
919
920int tls1_new(SSL *s);
921void tls1_free(SSL *s);
922void tls1_clear(SSL *s);
923long tls1_ctrl(SSL *s,int cmd, long larg, void *parg);
924long tls1_callback_ctrl(SSL *s,int cmd, void (*fp)(void));
925SSL_METHOD *tlsv1_base_method(void );
926
927int dtls1_new(SSL *s);
928int dtls1_accept(SSL *s);
929int dtls1_connect(SSL *s);
930void dtls1_free(SSL *s);
931void dtls1_clear(SSL *s);
932long dtls1_ctrl(SSL *s,int cmd, long larg, void *parg);
933SSL_METHOD *dtlsv1_base_method(void );
934
935long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok);
936int dtls1_get_record(SSL *s);
937int do_dtls1_write(SSL *s, int type, const unsigned char *buf,
938 unsigned int len, int create_empty_fragement);
939int dtls1_dispatch_alert(SSL *s);
940int dtls1_enc(SSL *s, int snd);
941
942int ssl_init_wbio_buffer(SSL *s, int push);
943void ssl_free_wbio_buffer(SSL *s);
944
945int tls1_change_cipher_state(SSL *s, int which);
946int tls1_setup_key_block(SSL *s);
947int tls1_enc(SSL *s, int snd);
948int tls1_final_finish_mac(SSL *s, EVP_MD_CTX *in1_ctx, EVP_MD_CTX *in2_ctx,
949 const char *str, int slen, unsigned char *p);
950int tls1_cert_verify_mac(SSL *s, EVP_MD_CTX *in, unsigned char *p);
951int tls1_mac(SSL *ssl, unsigned char *md, int snd);
952int tls1_generate_master_secret(SSL *s, unsigned char *out,
953 unsigned char *p, int len);
954int tls1_alert_code(int code);
955int ssl3_alert_code(int code);
956int ssl_ok(SSL *s);
957
958int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
959
960SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n);
961
962#ifndef OPENSSL_NO_TLSEXT
963unsigned char *ssl_add_clienthello_tlsext(SSL *s, unsigned char *p, unsigned char *limit);
964unsigned char *ssl_add_serverhello_tlsext(SSL *s, unsigned char *p, unsigned char *limit);
965int ssl_parse_clienthello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
966int ssl_parse_serverhello_tlsext(SSL *s, unsigned char **data, unsigned char *d, int n, int *al);
967int ssl_prepare_clienthello_tlsext(SSL *s);
968int ssl_prepare_serverhello_tlsext(SSL *s);
969int ssl_check_clienthello_tlsext(SSL *s);
970int ssl_check_serverhello_tlsext(SSL *s);
971#ifdef OPENSSL_NO_SHA256
972#define tlsext_tick_md EVP_sha1
973#else
974#define tlsext_tick_md EVP_sha256
975#endif
976int tls1_process_ticket(SSL *s, unsigned char *session_id, int len,
977 const unsigned char *limit, SSL_SESSION **ret);
978EVP_MD_CTX* ssl_replace_hash(EVP_MD_CTX **hash,const EVP_MD *md) ;
979void ssl_clear_hash_ctx(EVP_MD_CTX **hash);
980#endif
981
982#endif
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