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1 | /* | |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * | |
4 | * Licensed under the OpenSSL license (the "License"). You may not use | |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
8 | */ | |
9 | ||
10 | /* ==================================================================== | |
11 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
12 | * ECC cipher suite support in OpenSSL originally developed by | |
13 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. | |
14 | */ | |
15 | /* ==================================================================== | |
16 | * Copyright 2005 Nokia. All rights reserved. | |
17 | * | |
18 | * The portions of the attached software ("Contribution") is developed by | |
19 | * Nokia Corporation and is licensed pursuant to the OpenSSL open source | |
20 | * license. | |
21 | * | |
22 | * The Contribution, originally written by Mika Kousa and Pasi Eronen of | |
23 | * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites | |
24 | * support (see RFC 4279) to OpenSSL. | |
25 | * | |
26 | * No patent licenses or other rights except those expressly stated in | |
27 | * the OpenSSL open source license shall be deemed granted or received | |
28 | * expressly, by implication, estoppel, or otherwise. | |
29 | * | |
30 | * No assurances are provided by Nokia that the Contribution does not | |
31 | * infringe the patent or other intellectual property rights of any third | |
32 | * party or that the license provides you with all the necessary rights | |
33 | * to make use of the Contribution. | |
34 | * | |
35 | * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN | |
36 | * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA | |
37 | * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY | |
38 | * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR | |
39 | * OTHERWISE. | |
40 | */ | |
41 | ||
42 | #ifndef HEADER_SSL_LOCL_H | |
43 | # define HEADER_SSL_LOCL_H | |
44 | # include <stdlib.h> | |
45 | # include <time.h> | |
46 | # include <string.h> | |
47 | # include <errno.h> | |
48 | ||
49 | # include "e_os.h" | |
50 | # if defined(__unix) || defined(__unix__) | |
51 | # include <sys/time.h> /* struct timeval for DTLS */ | |
52 | # endif | |
53 | ||
54 | # include <openssl/buffer.h> | |
55 | # include <openssl/comp.h> | |
56 | # include <openssl/bio.h> | |
57 | # include <openssl/stack.h> | |
58 | # include <openssl/rsa.h> | |
59 | # include <openssl/dsa.h> | |
60 | # include <openssl/err.h> | |
61 | # include <openssl/ssl.h> | |
62 | # include <openssl/async.h> | |
63 | # include <openssl/symhacks.h> | |
64 | # include <openssl/ct.h> | |
65 | # include "record/record.h" | |
66 | # include "statem/statem.h" | |
67 | # include "packet_locl.h" | |
68 | # include "internal/dane.h" | |
69 | # include "internal/refcount.h" | |
70 | ||
71 | # ifdef OPENSSL_BUILD_SHLIBSSL | |
72 | # undef OPENSSL_EXTERN | |
73 | # define OPENSSL_EXTERN OPENSSL_EXPORT | |
74 | # endif | |
75 | ||
76 | # undef PKCS1_CHECK | |
77 | ||
78 | # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \ | |
79 | l|=(((unsigned long)(*((c)++)))<< 8), \ | |
80 | l|=(((unsigned long)(*((c)++)))<<16), \ | |
81 | l|=(((unsigned long)(*((c)++)))<<24)) | |
82 | ||
83 | /* NOTE - c is not incremented as per c2l */ | |
84 | # define c2ln(c,l1,l2,n) { \ | |
85 | c+=n; \ | |
86 | l1=l2=0; \ | |
87 | switch (n) { \ | |
88 | case 8: l2 =((unsigned long)(*(--(c))))<<24; \ | |
89 | case 7: l2|=((unsigned long)(*(--(c))))<<16; \ | |
90 | case 6: l2|=((unsigned long)(*(--(c))))<< 8; \ | |
91 | case 5: l2|=((unsigned long)(*(--(c)))); \ | |
92 | case 4: l1 =((unsigned long)(*(--(c))))<<24; \ | |
93 | case 3: l1|=((unsigned long)(*(--(c))))<<16; \ | |
94 | case 2: l1|=((unsigned long)(*(--(c))))<< 8; \ | |
95 | case 1: l1|=((unsigned long)(*(--(c)))); \ | |
96 | } \ | |
97 | } | |
98 | ||
99 | # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ | |
100 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
101 | *((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
102 | *((c)++)=(unsigned char)(((l)>>24)&0xff)) | |
103 | ||
104 | # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \ | |
105 | l|=((unsigned long)(*((c)++)))<<16, \ | |
106 | l|=((unsigned long)(*((c)++)))<< 8, \ | |
107 | l|=((unsigned long)(*((c)++)))) | |
108 | ||
109 | # define n2l8(c,l) (l =((uint64_t)(*((c)++)))<<56, \ | |
110 | l|=((uint64_t)(*((c)++)))<<48, \ | |
111 | l|=((uint64_t)(*((c)++)))<<40, \ | |
112 | l|=((uint64_t)(*((c)++)))<<32, \ | |
113 | l|=((uint64_t)(*((c)++)))<<24, \ | |
114 | l|=((uint64_t)(*((c)++)))<<16, \ | |
115 | l|=((uint64_t)(*((c)++)))<< 8, \ | |
116 | l|=((uint64_t)(*((c)++)))) | |
117 | ||
118 | ||
119 | # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \ | |
120 | *((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
121 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
122 | *((c)++)=(unsigned char)(((l) )&0xff)) | |
123 | ||
124 | # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \ | |
125 | *((c)++)=(unsigned char)(((l)>>32)&0xff), \ | |
126 | *((c)++)=(unsigned char)(((l)>>24)&0xff), \ | |
127 | *((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
128 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
129 | *((c)++)=(unsigned char)(((l) )&0xff)) | |
130 | ||
131 | # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \ | |
132 | *((c)++)=(unsigned char)(((l)>>48)&0xff), \ | |
133 | *((c)++)=(unsigned char)(((l)>>40)&0xff), \ | |
134 | *((c)++)=(unsigned char)(((l)>>32)&0xff), \ | |
135 | *((c)++)=(unsigned char)(((l)>>24)&0xff), \ | |
136 | *((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
137 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
138 | *((c)++)=(unsigned char)(((l) )&0xff)) | |
139 | ||
140 | /* NOTE - c is not incremented as per l2c */ | |
141 | # define l2cn(l1,l2,c,n) { \ | |
142 | c+=n; \ | |
143 | switch (n) { \ | |
144 | case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \ | |
145 | case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \ | |
146 | case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \ | |
147 | case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ | |
148 | case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \ | |
149 | case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \ | |
150 | case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \ | |
151 | case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ | |
152 | } \ | |
153 | } | |
154 | ||
155 | # define n2s(c,s) ((s=(((unsigned int)((c)[0]))<< 8)| \ | |
156 | (((unsigned int)((c)[1])) )),(c)+=2) | |
157 | # define s2n(s,c) (((c)[0]=(unsigned char)(((s)>> 8)&0xff), \ | |
158 | (c)[1]=(unsigned char)(((s) )&0xff)),(c)+=2) | |
159 | ||
160 | # define n2l3(c,l) ((l =(((unsigned long)((c)[0]))<<16)| \ | |
161 | (((unsigned long)((c)[1]))<< 8)| \ | |
162 | (((unsigned long)((c)[2])) )),(c)+=3) | |
163 | ||
164 | # define l2n3(l,c) (((c)[0]=(unsigned char)(((l)>>16)&0xff), \ | |
165 | (c)[1]=(unsigned char)(((l)>> 8)&0xff), \ | |
166 | (c)[2]=(unsigned char)(((l) )&0xff)),(c)+=3) | |
167 | ||
168 | /* | |
169 | * DTLS version numbers are strange because they're inverted. Except for | |
170 | * DTLS1_BAD_VER, which should be considered "lower" than the rest. | |
171 | */ | |
172 | # define dtls_ver_ordinal(v1) (((v1) == DTLS1_BAD_VER) ? 0xff00 : (v1)) | |
173 | # define DTLS_VERSION_GT(v1, v2) (dtls_ver_ordinal(v1) < dtls_ver_ordinal(v2)) | |
174 | # define DTLS_VERSION_GE(v1, v2) (dtls_ver_ordinal(v1) <= dtls_ver_ordinal(v2)) | |
175 | # define DTLS_VERSION_LT(v1, v2) (dtls_ver_ordinal(v1) > dtls_ver_ordinal(v2)) | |
176 | # define DTLS_VERSION_LE(v1, v2) (dtls_ver_ordinal(v1) >= dtls_ver_ordinal(v2)) | |
177 | ||
178 | /* LOCAL STUFF */ | |
179 | ||
180 | # define SSL_DECRYPT 0 | |
181 | # define SSL_ENCRYPT 1 | |
182 | ||
183 | # define TWO_BYTE_BIT 0x80 | |
184 | # define SEC_ESC_BIT 0x40 | |
185 | # define TWO_BYTE_MASK 0x7fff | |
186 | # define THREE_BYTE_MASK 0x3fff | |
187 | ||
188 | # define INC32(a) ((a)=((a)+1)&0xffffffffL) | |
189 | # define DEC32(a) ((a)=((a)-1)&0xffffffffL) | |
190 | # define MAX_MAC_SIZE 20 /* up from 16 for SSLv3 */ | |
191 | ||
192 | /* | |
193 | * Define the Bitmasks for SSL_CIPHER.algorithms. | |
194 | * This bits are used packed as dense as possible. If new methods/ciphers | |
195 | * etc will be added, the bits a likely to change, so this information | |
196 | * is for internal library use only, even though SSL_CIPHER.algorithms | |
197 | * can be publicly accessed. | |
198 | * Use the according functions for cipher management instead. | |
199 | * | |
200 | * The bit mask handling in the selection and sorting scheme in | |
201 | * ssl_create_cipher_list() has only limited capabilities, reflecting | |
202 | * that the different entities within are mutually exclusive: | |
203 | * ONLY ONE BIT PER MASK CAN BE SET AT A TIME. | |
204 | */ | |
205 | ||
206 | /* Bits for algorithm_mkey (key exchange algorithm) */ | |
207 | /* RSA key exchange */ | |
208 | # define SSL_kRSA 0x00000001U | |
209 | /* tmp DH key no DH cert */ | |
210 | # define SSL_kDHE 0x00000002U | |
211 | /* synonym */ | |
212 | # define SSL_kEDH SSL_kDHE | |
213 | /* ephemeral ECDH */ | |
214 | # define SSL_kECDHE 0x00000004U | |
215 | /* synonym */ | |
216 | # define SSL_kEECDH SSL_kECDHE | |
217 | /* PSK */ | |
218 | # define SSL_kPSK 0x00000008U | |
219 | /* GOST key exchange */ | |
220 | # define SSL_kGOST 0x00000010U | |
221 | /* SRP */ | |
222 | # define SSL_kSRP 0x00000020U | |
223 | ||
224 | # define SSL_kRSAPSK 0x00000040U | |
225 | # define SSL_kECDHEPSK 0x00000080U | |
226 | # define SSL_kDHEPSK 0x00000100U | |
227 | ||
228 | /* all PSK */ | |
229 | ||
230 | # define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK) | |
231 | ||
232 | /* Bits for algorithm_auth (server authentication) */ | |
233 | /* RSA auth */ | |
234 | # define SSL_aRSA 0x00000001U | |
235 | /* DSS auth */ | |
236 | # define SSL_aDSS 0x00000002U | |
237 | /* no auth (i.e. use ADH or AECDH) */ | |
238 | # define SSL_aNULL 0x00000004U | |
239 | /* ECDSA auth*/ | |
240 | # define SSL_aECDSA 0x00000008U | |
241 | /* PSK auth */ | |
242 | # define SSL_aPSK 0x00000010U | |
243 | /* GOST R 34.10-2001 signature auth */ | |
244 | # define SSL_aGOST01 0x00000020U | |
245 | /* SRP auth */ | |
246 | # define SSL_aSRP 0x00000040U | |
247 | /* GOST R 34.10-2012 signature auth */ | |
248 | # define SSL_aGOST12 0x00000080U | |
249 | ||
250 | /* Bits for algorithm_enc (symmetric encryption) */ | |
251 | # define SSL_DES 0x00000001U | |
252 | # define SSL_3DES 0x00000002U | |
253 | # define SSL_RC4 0x00000004U | |
254 | # define SSL_RC2 0x00000008U | |
255 | # define SSL_IDEA 0x00000010U | |
256 | # define SSL_eNULL 0x00000020U | |
257 | # define SSL_AES128 0x00000040U | |
258 | # define SSL_AES256 0x00000080U | |
259 | # define SSL_CAMELLIA128 0x00000100U | |
260 | # define SSL_CAMELLIA256 0x00000200U | |
261 | # define SSL_eGOST2814789CNT 0x00000400U | |
262 | # define SSL_SEED 0x00000800U | |
263 | # define SSL_AES128GCM 0x00001000U | |
264 | # define SSL_AES256GCM 0x00002000U | |
265 | # define SSL_AES128CCM 0x00004000U | |
266 | # define SSL_AES256CCM 0x00008000U | |
267 | # define SSL_AES128CCM8 0x00010000U | |
268 | # define SSL_AES256CCM8 0x00020000U | |
269 | # define SSL_eGOST2814789CNT12 0x00040000U | |
270 | # define SSL_CHACHA20POLY1305 0x00080000U | |
271 | ||
272 | # define SSL_AESGCM (SSL_AES128GCM | SSL_AES256GCM) | |
273 | # define SSL_AESCCM (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8) | |
274 | # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AESGCM|SSL_AESCCM) | |
275 | # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256) | |
276 | # define SSL_CHACHA20 (SSL_CHACHA20POLY1305) | |
277 | ||
278 | /* Bits for algorithm_mac (symmetric authentication) */ | |
279 | ||
280 | # define SSL_MD5 0x00000001U | |
281 | # define SSL_SHA1 0x00000002U | |
282 | # define SSL_GOST94 0x00000004U | |
283 | # define SSL_GOST89MAC 0x00000008U | |
284 | # define SSL_SHA256 0x00000010U | |
285 | # define SSL_SHA384 0x00000020U | |
286 | /* Not a real MAC, just an indication it is part of cipher */ | |
287 | # define SSL_AEAD 0x00000040U | |
288 | # define SSL_GOST12_256 0x00000080U | |
289 | # define SSL_GOST89MAC12 0x00000100U | |
290 | # define SSL_GOST12_512 0x00000200U | |
291 | ||
292 | /* | |
293 | * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make | |
294 | * sure to update this constant too | |
295 | */ | |
296 | ||
297 | # define SSL_MD_MD5_IDX 0 | |
298 | # define SSL_MD_SHA1_IDX 1 | |
299 | # define SSL_MD_GOST94_IDX 2 | |
300 | # define SSL_MD_GOST89MAC_IDX 3 | |
301 | # define SSL_MD_SHA256_IDX 4 | |
302 | # define SSL_MD_SHA384_IDX 5 | |
303 | # define SSL_MD_GOST12_256_IDX 6 | |
304 | # define SSL_MD_GOST89MAC12_IDX 7 | |
305 | # define SSL_MD_GOST12_512_IDX 8 | |
306 | # define SSL_MD_MD5_SHA1_IDX 9 | |
307 | # define SSL_MD_SHA224_IDX 10 | |
308 | # define SSL_MD_SHA512_IDX 11 | |
309 | # define SSL_MAX_DIGEST 12 | |
310 | ||
311 | /* Bits for algorithm2 (handshake digests and other extra flags) */ | |
312 | ||
313 | /* Bits 0-7 are handshake MAC */ | |
314 | # define SSL_HANDSHAKE_MAC_MASK 0xFF | |
315 | # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX | |
316 | # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX | |
317 | # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX | |
318 | # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX | |
319 | # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX | |
320 | # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX | |
321 | # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1 | |
322 | ||
323 | /* Bits 8-15 bits are PRF */ | |
324 | # define TLS1_PRF_DGST_SHIFT 8 | |
325 | # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT) | |
326 | # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT) | |
327 | # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT) | |
328 | # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT) | |
329 | # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT) | |
330 | # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT) | |
331 | # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT) | |
332 | ||
333 | /* | |
334 | * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also | |
335 | * goes into algorithm2) | |
336 | */ | |
337 | # define TLS1_STREAM_MAC 0x10000 | |
338 | ||
339 | # define SSL_STRONG_MASK 0x0000001FU | |
340 | # define SSL_DEFAULT_MASK 0X00000020U | |
341 | ||
342 | # define SSL_STRONG_NONE 0x00000001U | |
343 | # define SSL_LOW 0x00000002U | |
344 | # define SSL_MEDIUM 0x00000004U | |
345 | # define SSL_HIGH 0x00000008U | |
346 | # define SSL_FIPS 0x00000010U | |
347 | # define SSL_NOT_DEFAULT 0x00000020U | |
348 | ||
349 | /* we have used 0000003f - 26 bits left to go */ | |
350 | ||
351 | /* Check if an SSL structure is using DTLS */ | |
352 | # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) | |
353 | ||
354 | /* Check if we are using TLSv1.3 */ | |
355 | # define SSL_IS_TLS13(s) (!SSL_IS_DTLS(s) \ | |
356 | && (s)->method->version >= TLS1_3_VERSION \ | |
357 | && (s)->method->version != TLS_ANY_VERSION) | |
358 | ||
359 | /* See if we need explicit IV */ | |
360 | # define SSL_USE_EXPLICIT_IV(s) \ | |
361 | (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV) | |
362 | /* | |
363 | * See if we use signature algorithms extension and signature algorithm | |
364 | * before signatures. | |
365 | */ | |
366 | # define SSL_USE_SIGALGS(s) \ | |
367 | (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS) | |
368 | /* | |
369 | * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may | |
370 | * apply to others in future. | |
371 | */ | |
372 | # define SSL_USE_TLS1_2_CIPHERS(s) \ | |
373 | (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS) | |
374 | /* | |
375 | * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method | |
376 | * flags because it may not be set to correct version yet. | |
377 | */ | |
378 | # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \ | |
379 | ((!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \ | |
380 | (SSL_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION))) | |
381 | /* | |
382 | * Determine if a client should send signature algorithms extension: | |
383 | * as with TLS1.2 cipher we can't rely on method flags. | |
384 | */ | |
385 | # define SSL_CLIENT_USE_SIGALGS(s) \ | |
386 | SSL_CLIENT_USE_TLS1_2_CIPHERS(s) | |
387 | ||
388 | # define SSL_USE_ETM(s) (s->s3->flags & TLS1_FLAGS_ENCRYPT_THEN_MAC) | |
389 | ||
390 | /* Mostly for SSLv3 */ | |
391 | # define SSL_PKEY_RSA_ENC 0 | |
392 | # define SSL_PKEY_RSA_SIGN 1 | |
393 | # define SSL_PKEY_DSA_SIGN 2 | |
394 | # define SSL_PKEY_ECC 3 | |
395 | # define SSL_PKEY_GOST01 4 | |
396 | # define SSL_PKEY_GOST12_256 5 | |
397 | # define SSL_PKEY_GOST12_512 6 | |
398 | # define SSL_PKEY_NUM 7 | |
399 | /* | |
400 | * Pseudo-constant. GOST cipher suites can use different certs for 1 | |
401 | * SSL_CIPHER. So let's see which one we have in fact. | |
402 | */ | |
403 | # define SSL_PKEY_GOST_EC SSL_PKEY_NUM+1 | |
404 | ||
405 | /*- | |
406 | * SSL_kRSA <- RSA_ENC | |
407 | * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN) | |
408 | * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN | |
409 | * SSL_aRSA <- RSA_ENC | RSA_SIGN | |
410 | * SSL_aDSS <- DSA_SIGN | |
411 | */ | |
412 | ||
413 | /*- | |
414 | #define CERT_INVALID 0 | |
415 | #define CERT_PUBLIC_KEY 1 | |
416 | #define CERT_PRIVATE_KEY 2 | |
417 | */ | |
418 | ||
419 | /* CipherSuite length. SSLv3 and all TLS versions. */ | |
420 | # define TLS_CIPHER_LEN 2 | |
421 | /* used to hold info on the particular ciphers used */ | |
422 | struct ssl_cipher_st { | |
423 | uint32_t valid; | |
424 | const char *name; /* text name */ | |
425 | uint32_t id; /* id, 4 bytes, first is version */ | |
426 | /* | |
427 | * changed in 1.0.0: these four used to be portions of a single value | |
428 | * 'algorithms' | |
429 | */ | |
430 | uint32_t algorithm_mkey; /* key exchange algorithm */ | |
431 | uint32_t algorithm_auth; /* server authentication */ | |
432 | uint32_t algorithm_enc; /* symmetric encryption */ | |
433 | uint32_t algorithm_mac; /* symmetric authentication */ | |
434 | int min_tls; /* minimum SSL/TLS protocol version */ | |
435 | int max_tls; /* maximum SSL/TLS protocol version */ | |
436 | int min_dtls; /* minimum DTLS protocol version */ | |
437 | int max_dtls; /* maximum DTLS protocol version */ | |
438 | uint32_t algo_strength; /* strength and export flags */ | |
439 | uint32_t algorithm2; /* Extra flags */ | |
440 | int32_t strength_bits; /* Number of bits really used */ | |
441 | uint32_t alg_bits; /* Number of bits for algorithm */ | |
442 | }; | |
443 | ||
444 | /* Used to hold SSL/TLS functions */ | |
445 | struct ssl_method_st { | |
446 | int version; | |
447 | unsigned flags; | |
448 | unsigned long mask; | |
449 | int (*ssl_new) (SSL *s); | |
450 | void (*ssl_clear) (SSL *s); | |
451 | void (*ssl_free) (SSL *s); | |
452 | int (*ssl_accept) (SSL *s); | |
453 | int (*ssl_connect) (SSL *s); | |
454 | int (*ssl_read) (SSL *s, void *buf, size_t len, size_t *readbytes); | |
455 | int (*ssl_peek) (SSL *s, void *buf, size_t len, size_t *readbytes); | |
456 | int (*ssl_write) (SSL *s, const void *buf, size_t len, size_t *written); | |
457 | int (*ssl_shutdown) (SSL *s); | |
458 | int (*ssl_renegotiate) (SSL *s); | |
459 | int (*ssl_renegotiate_check) (SSL *s); | |
460 | int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type, | |
461 | unsigned char *buf, size_t len, int peek, | |
462 | size_t *readbytes); | |
463 | int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, size_t len, | |
464 | size_t *written); | |
465 | int (*ssl_dispatch_alert) (SSL *s); | |
466 | long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg); | |
467 | long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg); | |
468 | const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr); | |
469 | int (*put_cipher_by_char) (const SSL_CIPHER *cipher, WPACKET *pkt, | |
470 | size_t *len); | |
471 | size_t (*ssl_pending) (const SSL *s); | |
472 | int (*num_ciphers) (void); | |
473 | const SSL_CIPHER *(*get_cipher) (unsigned ncipher); | |
474 | long (*get_timeout) (void); | |
475 | const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */ | |
476 | int (*ssl_version) (void); | |
477 | long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void)); | |
478 | long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void)); | |
479 | }; | |
480 | ||
481 | /*- | |
482 | * Lets make this into an ASN.1 type structure as follows | |
483 | * SSL_SESSION_ID ::= SEQUENCE { | |
484 | * version INTEGER, -- structure version number | |
485 | * SSLversion INTEGER, -- SSL version number | |
486 | * Cipher OCTET STRING, -- the 3 byte cipher ID | |
487 | * Session_ID OCTET STRING, -- the Session ID | |
488 | * Master_key OCTET STRING, -- the master key | |
489 | * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument | |
490 | * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time | |
491 | * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds | |
492 | * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate | |
493 | * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context | |
494 | * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer' | |
495 | * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension | |
496 | * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint | |
497 | * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity | |
498 | * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket | |
499 | * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only) | |
500 | * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method | |
501 | * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username | |
502 | * flags [ 13 ] EXPLICIT INTEGER -- optional flags | |
503 | * } | |
504 | * Look in ssl/ssl_asn1.c for more details | |
505 | * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-). | |
506 | */ | |
507 | struct ssl_session_st { | |
508 | int ssl_version; /* what ssl version session info is being kept | |
509 | * in here? */ | |
510 | size_t master_key_length; | |
511 | unsigned char master_key[SSL_MAX_MASTER_KEY_LENGTH]; | |
512 | /* session_id - valid? */ | |
513 | size_t session_id_length; | |
514 | unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH]; | |
515 | /* | |
516 | * this is used to determine whether the session is being reused in the | |
517 | * appropriate context. It is up to the application to set this, via | |
518 | * SSL_new | |
519 | */ | |
520 | size_t sid_ctx_length; | |
521 | unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; | |
522 | # ifndef OPENSSL_NO_PSK | |
523 | char *psk_identity_hint; | |
524 | char *psk_identity; | |
525 | # endif | |
526 | /* | |
527 | * Used to indicate that session resumption is not allowed. Applications | |
528 | * can also set this bit for a new session via not_resumable_session_cb | |
529 | * to disable session caching and tickets. | |
530 | */ | |
531 | int not_resumable; | |
532 | /* This is the cert and type for the other end. */ | |
533 | X509 *peer; | |
534 | int peer_type; | |
535 | /* Certificate chain peer sent */ | |
536 | STACK_OF(X509) *peer_chain; | |
537 | /* | |
538 | * when app_verify_callback accepts a session where the peer's | |
539 | * certificate is not ok, we must remember the error for session reuse: | |
540 | */ | |
541 | long verify_result; /* only for servers */ | |
542 | CRYPTO_REF_COUNT references; | |
543 | long timeout; | |
544 | long time; | |
545 | unsigned int compress_meth; /* Need to lookup the method */ | |
546 | const SSL_CIPHER *cipher; | |
547 | unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used to | |
548 | * load the 'cipher' structure */ | |
549 | STACK_OF(SSL_CIPHER) *ciphers; /* shared ciphers? */ | |
550 | CRYPTO_EX_DATA ex_data; /* application specific data */ | |
551 | /* | |
552 | * These are used to make removal of session-ids more efficient and to | |
553 | * implement a maximum cache size. | |
554 | */ | |
555 | struct ssl_session_st *prev, *next; | |
556 | ||
557 | struct { | |
558 | char *hostname; | |
559 | # ifndef OPENSSL_NO_EC | |
560 | size_t ecpointformats_len; | |
561 | unsigned char *ecpointformats; /* peer's list */ | |
562 | size_t supportedgroups_len; | |
563 | unsigned char *supportedgroups; /* peer's list */ | |
564 | # endif /* OPENSSL_NO_EC */ | |
565 | /* RFC4507 info */ | |
566 | unsigned char *tick; /* Session ticket */ | |
567 | size_t ticklen; /* Session ticket length */ | |
568 | /* Session lifetime hint in seconds */ | |
569 | unsigned long tick_lifetime_hint; | |
570 | } ext; | |
571 | # ifndef OPENSSL_NO_SRP | |
572 | char *srp_username; | |
573 | # endif | |
574 | uint32_t flags; | |
575 | CRYPTO_RWLOCK *lock; | |
576 | }; | |
577 | ||
578 | /* Extended master secret support */ | |
579 | # define SSL_SESS_FLAG_EXTMS 0x1 | |
580 | ||
581 | # ifndef OPENSSL_NO_SRP | |
582 | ||
583 | typedef struct srp_ctx_st { | |
584 | /* param for all the callbacks */ | |
585 | void *SRP_cb_arg; | |
586 | /* set client Hello login callback */ | |
587 | int (*TLS_ext_srp_username_callback) (SSL *, int *, void *); | |
588 | /* set SRP N/g param callback for verification */ | |
589 | int (*SRP_verify_param_callback) (SSL *, void *); | |
590 | /* set SRP client passwd callback */ | |
591 | char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *); | |
592 | char *login; | |
593 | BIGNUM *N, *g, *s, *B, *A; | |
594 | BIGNUM *a, *b, *v; | |
595 | char *info; | |
596 | int strength; | |
597 | unsigned long srp_Mask; | |
598 | } SRP_CTX; | |
599 | ||
600 | # endif | |
601 | ||
602 | struct ssl_comp_st { | |
603 | int id; | |
604 | const char *name; | |
605 | COMP_METHOD *method; | |
606 | }; | |
607 | ||
608 | DEFINE_LHASH_OF(SSL_SESSION); | |
609 | /* Needed in ssl_cert.c */ | |
610 | DEFINE_LHASH_OF(X509_NAME); | |
611 | ||
612 | # define TLSEXT_KEYNAME_LENGTH 16 | |
613 | ||
614 | struct ssl_ctx_st { | |
615 | const SSL_METHOD *method; | |
616 | STACK_OF(SSL_CIPHER) *cipher_list; | |
617 | /* same as above but sorted for lookup */ | |
618 | STACK_OF(SSL_CIPHER) *cipher_list_by_id; | |
619 | struct x509_store_st /* X509_STORE */ *cert_store; | |
620 | LHASH_OF(SSL_SESSION) *sessions; | |
621 | /* | |
622 | * Most session-ids that will be cached, default is | |
623 | * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited. | |
624 | */ | |
625 | size_t session_cache_size; | |
626 | struct ssl_session_st *session_cache_head; | |
627 | struct ssl_session_st *session_cache_tail; | |
628 | /* | |
629 | * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT, | |
630 | * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which | |
631 | * means only SSL_accept which cache SSL_SESSIONS. | |
632 | */ | |
633 | uint32_t session_cache_mode; | |
634 | /* | |
635 | * If timeout is not 0, it is the default timeout value set when | |
636 | * SSL_new() is called. This has been put in to make life easier to set | |
637 | * things up | |
638 | */ | |
639 | long session_timeout; | |
640 | /* | |
641 | * If this callback is not null, it will be called each time a session id | |
642 | * is added to the cache. If this function returns 1, it means that the | |
643 | * callback will do a SSL_SESSION_free() when it has finished using it. | |
644 | * Otherwise, on 0, it means the callback has finished with it. If | |
645 | * remove_session_cb is not null, it will be called when a session-id is | |
646 | * removed from the cache. After the call, OpenSSL will | |
647 | * SSL_SESSION_free() it. | |
648 | */ | |
649 | int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess); | |
650 | void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess); | |
651 | SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl, | |
652 | const unsigned char *data, int len, | |
653 | int *copy); | |
654 | struct { | |
655 | int sess_connect; /* SSL new conn - started */ | |
656 | int sess_connect_renegotiate; /* SSL reneg - requested */ | |
657 | int sess_connect_good; /* SSL new conne/reneg - finished */ | |
658 | int sess_accept; /* SSL new accept - started */ | |
659 | int sess_accept_renegotiate; /* SSL reneg - requested */ | |
660 | int sess_accept_good; /* SSL accept/reneg - finished */ | |
661 | int sess_miss; /* session lookup misses */ | |
662 | int sess_timeout; /* reuse attempt on timeouted session */ | |
663 | int sess_cache_full; /* session removed due to full cache */ | |
664 | int sess_hit; /* session reuse actually done */ | |
665 | int sess_cb_hit; /* session-id that was not in the cache was | |
666 | * passed back via the callback. This | |
667 | * indicates that the application is supplying | |
668 | * session-id's from other processes - spooky | |
669 | * :-) */ | |
670 | } stats; | |
671 | ||
672 | CRYPTO_REF_COUNT references; | |
673 | ||
674 | /* if defined, these override the X509_verify_cert() calls */ | |
675 | int (*app_verify_callback) (X509_STORE_CTX *, void *); | |
676 | void *app_verify_arg; | |
677 | /* | |
678 | * before OpenSSL 0.9.7, 'app_verify_arg' was ignored | |
679 | * ('app_verify_callback' was called with just one argument) | |
680 | */ | |
681 | ||
682 | /* Default password callback. */ | |
683 | pem_password_cb *default_passwd_callback; | |
684 | ||
685 | /* Default password callback user data. */ | |
686 | void *default_passwd_callback_userdata; | |
687 | ||
688 | /* get client cert callback */ | |
689 | int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey); | |
690 | ||
691 | /* cookie generate callback */ | |
692 | int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie, | |
693 | unsigned int *cookie_len); | |
694 | ||
695 | /* verify cookie callback */ | |
696 | int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie, | |
697 | unsigned int cookie_len); | |
698 | ||
699 | CRYPTO_EX_DATA ex_data; | |
700 | ||
701 | const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */ | |
702 | const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3->sha1' */ | |
703 | ||
704 | STACK_OF(X509) *extra_certs; | |
705 | STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */ | |
706 | ||
707 | /* Default values used when no per-SSL value is defined follow */ | |
708 | ||
709 | /* used if SSL's info_callback is NULL */ | |
710 | void (*info_callback) (const SSL *ssl, int type, int val); | |
711 | ||
712 | /* what we put in client cert requests */ | |
713 | STACK_OF(X509_NAME) *client_CA; | |
714 | ||
715 | /* | |
716 | * Default values to use in SSL structures follow (these are copied by | |
717 | * SSL_new) | |
718 | */ | |
719 | ||
720 | uint32_t options; | |
721 | uint32_t mode; | |
722 | int min_proto_version; | |
723 | int max_proto_version; | |
724 | size_t max_cert_list; | |
725 | ||
726 | struct cert_st /* CERT */ *cert; | |
727 | int read_ahead; | |
728 | ||
729 | /* callback that allows applications to peek at protocol messages */ | |
730 | void (*msg_callback) (int write_p, int version, int content_type, | |
731 | const void *buf, size_t len, SSL *ssl, void *arg); | |
732 | void *msg_callback_arg; | |
733 | ||
734 | uint32_t verify_mode; | |
735 | size_t sid_ctx_length; | |
736 | unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; | |
737 | /* called 'verify_callback' in the SSL */ | |
738 | int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx); | |
739 | ||
740 | /* Default generate session ID callback. */ | |
741 | GEN_SESSION_CB generate_session_id; | |
742 | ||
743 | X509_VERIFY_PARAM *param; | |
744 | ||
745 | int quiet_shutdown; | |
746 | ||
747 | # ifndef OPENSSL_NO_CT | |
748 | CTLOG_STORE *ctlog_store; /* CT Log Store */ | |
749 | /* | |
750 | * Validates that the SCTs (Signed Certificate Timestamps) are sufficient. | |
751 | * If they are not, the connection should be aborted. | |
752 | */ | |
753 | ssl_ct_validation_cb ct_validation_callback; | |
754 | void *ct_validation_callback_arg; | |
755 | # endif | |
756 | ||
757 | /* | |
758 | * If we're using more than one pipeline how should we divide the data | |
759 | * up between the pipes? | |
760 | */ | |
761 | size_t split_send_fragment; | |
762 | /* | |
763 | * Maximum amount of data to send in one fragment. actual record size can | |
764 | * be more than this due to padding and MAC overheads. | |
765 | */ | |
766 | size_t max_send_fragment; | |
767 | ||
768 | /* Up to how many pipelines should we use? If 0 then 1 is assumed */ | |
769 | size_t max_pipelines; | |
770 | ||
771 | /* The default read buffer length to use (0 means not set) */ | |
772 | size_t default_read_buf_len; | |
773 | ||
774 | # ifndef OPENSSL_NO_ENGINE | |
775 | /* | |
776 | * Engine to pass requests for client certs to | |
777 | */ | |
778 | ENGINE *client_cert_engine; | |
779 | # endif | |
780 | ||
781 | /* TLS extensions. */ | |
782 | struct { | |
783 | /* TLS extensions servername callback */ | |
784 | int (*servername_cb) (SSL *, int *, void *); | |
785 | void *servername_arg; | |
786 | /* RFC 4507 session ticket keys */ | |
787 | unsigned char tick_key_name[TLSEXT_KEYNAME_LENGTH]; | |
788 | unsigned char tick_hmac_key[32]; | |
789 | unsigned char tick_aes_key[32]; | |
790 | /* Callback to support customisation of ticket key setting */ | |
791 | int (*ticket_key_cb) (SSL *ssl, | |
792 | unsigned char *name, unsigned char *iv, | |
793 | EVP_CIPHER_CTX *ectx, HMAC_CTX *hctx, int enc); | |
794 | ||
795 | /* certificate status request info */ | |
796 | /* Callback for status request */ | |
797 | int (*status_cb) (SSL *ssl, void *arg); | |
798 | void *status_arg; | |
799 | /* ext status type used for CSR extension (OCSP Stapling) */ | |
800 | int status_type; | |
801 | ||
802 | # ifndef OPENSSL_NO_EC | |
803 | /* EC extension values inherited by SSL structure */ | |
804 | size_t ecpointformats_len; | |
805 | unsigned char *ecpointformats; | |
806 | size_t supportedgroups_len; | |
807 | unsigned char *supportedgroups; | |
808 | # endif /* OPENSSL_NO_EC */ | |
809 | ||
810 | # ifndef OPENSSL_NO_NEXTPROTONEG | |
811 | /* | |
812 | * ALPN information (we are in the process of transitioning from NPN to | |
813 | * ALPN.) | |
814 | */ | |
815 | ||
816 | /*- | |
817 | * For a server, this contains a callback function that allows the | |
818 | * server to select the protocol for the connection. | |
819 | * out: on successful return, this must point to the raw protocol | |
820 | * name (without the length prefix). | |
821 | * outlen: on successful return, this contains the length of |*out|. | |
822 | * in: points to the client's list of supported protocols in | |
823 | * wire-format. | |
824 | * inlen: the length of |in|. | |
825 | */ | |
826 | int (*alpn_select_cb) (SSL *s, | |
827 | const unsigned char **out, | |
828 | unsigned char *outlen, | |
829 | const unsigned char *in, | |
830 | unsigned int inlen, void *arg); | |
831 | void *alpn_select_cb_arg; | |
832 | ||
833 | /* | |
834 | * For a client, this contains the list of supported protocols in wire | |
835 | * format. | |
836 | */ | |
837 | unsigned char *alpn; | |
838 | size_t alpn_len; | |
839 | ||
840 | /* Next protocol negotiation information */ | |
841 | ||
842 | /* | |
843 | * For a server, this contains a callback function by which the set of | |
844 | * advertised protocols can be provided. | |
845 | */ | |
846 | int (*npn_advertised_cb) (SSL *s, const unsigned char **buf, | |
847 | unsigned int *len, void *arg); | |
848 | void *npn_advertised_cb_arg; | |
849 | /* | |
850 | * For a client, this contains a callback function that selects the next | |
851 | * protocol from the list provided by the server. | |
852 | */ | |
853 | int (*npn_select_cb) (SSL *s, unsigned char **out, | |
854 | unsigned char *outlen, | |
855 | const unsigned char *in, | |
856 | unsigned int inlen, void *arg); | |
857 | void *npn_select_cb_arg; | |
858 | # endif | |
859 | } ext; | |
860 | ||
861 | # ifndef OPENSSL_NO_PSK | |
862 | unsigned int (*psk_client_callback) (SSL *ssl, const char *hint, | |
863 | char *identity, | |
864 | unsigned int max_identity_len, | |
865 | unsigned char *psk, | |
866 | unsigned int max_psk_len); | |
867 | unsigned int (*psk_server_callback) (SSL *ssl, const char *identity, | |
868 | unsigned char *psk, | |
869 | unsigned int max_psk_len); | |
870 | # endif | |
871 | ||
872 | # ifndef OPENSSL_NO_SRP | |
873 | SRP_CTX srp_ctx; /* ctx for SRP authentication */ | |
874 | # endif | |
875 | ||
876 | /* Shared DANE context */ | |
877 | struct dane_ctx_st dane; | |
878 | ||
879 | /* SRTP profiles we are willing to do from RFC 5764 */ | |
880 | STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; | |
881 | /* | |
882 | * Callback for disabling session caching and ticket support on a session | |
883 | * basis, depending on the chosen cipher. | |
884 | */ | |
885 | int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure); | |
886 | ||
887 | CRYPTO_RWLOCK *lock; | |
888 | }; | |
889 | ||
890 | struct ssl_st { | |
891 | /* | |
892 | * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION, | |
893 | * DTLS1_VERSION) | |
894 | */ | |
895 | int version; | |
896 | /* SSLv3 */ | |
897 | const SSL_METHOD *method; | |
898 | /* | |
899 | * There are 2 BIO's even though they are normally both the same. This | |
900 | * is so data can be read and written to different handlers | |
901 | */ | |
902 | /* used by SSL_read */ | |
903 | BIO *rbio; | |
904 | /* used by SSL_write */ | |
905 | BIO *wbio; | |
906 | /* used during session-id reuse to concatenate messages */ | |
907 | BIO *bbio; | |
908 | /* | |
909 | * This holds a variable that indicates what we were doing when a 0 or -1 | |
910 | * is returned. This is needed for non-blocking IO so we know what | |
911 | * request needs re-doing when in SSL_accept or SSL_connect | |
912 | */ | |
913 | int rwstate; | |
914 | int (*handshake_func) (SSL *); | |
915 | /* | |
916 | * Imagine that here's a boolean member "init" that is switched as soon | |
917 | * as SSL_set_{accept/connect}_state is called for the first time, so | |
918 | * that "state" and "handshake_func" are properly initialized. But as | |
919 | * handshake_func is == 0 until then, we use this test instead of an | |
920 | * "init" member. | |
921 | */ | |
922 | /* are we the server side? */ | |
923 | int server; | |
924 | /* | |
925 | * Generate a new session or reuse an old one. | |
926 | * NB: For servers, the 'new' session may actually be a previously | |
927 | * cached session or even the previous session unless | |
928 | * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set | |
929 | */ | |
930 | int new_session; | |
931 | /* don't send shutdown packets */ | |
932 | int quiet_shutdown; | |
933 | /* we have shut things down, 0x01 sent, 0x02 for received */ | |
934 | int shutdown; | |
935 | /* where we are */ | |
936 | OSSL_STATEM statem; | |
937 | BUF_MEM *init_buf; /* buffer used during init */ | |
938 | void *init_msg; /* pointer to handshake message body, set by | |
939 | * ssl3_get_message() */ | |
940 | size_t init_num; /* amount read/written */ | |
941 | size_t init_off; /* amount read/written */ | |
942 | struct ssl3_state_st *s3; /* SSLv3 variables */ | |
943 | struct dtls1_state_st *d1; /* DTLSv1 variables */ | |
944 | /* callback that allows applications to peek at protocol messages */ | |
945 | void (*msg_callback) (int write_p, int version, int content_type, | |
946 | const void *buf, size_t len, SSL *ssl, void *arg); | |
947 | void *msg_callback_arg; | |
948 | int hit; /* reusing a previous session */ | |
949 | X509_VERIFY_PARAM *param; | |
950 | /* Per connection DANE state */ | |
951 | SSL_DANE dane; | |
952 | /* crypto */ | |
953 | STACK_OF(SSL_CIPHER) *cipher_list; | |
954 | STACK_OF(SSL_CIPHER) *cipher_list_by_id; | |
955 | /* | |
956 | * These are the ones being used, the ones in SSL_SESSION are the ones to | |
957 | * be 'copied' into these ones | |
958 | */ | |
959 | uint32_t mac_flags; | |
960 | /* | |
961 | * The TLS1.3 early_secret and handshake_secret. The master_secret is stored | |
962 | * in the session. | |
963 | */ | |
964 | unsigned char early_secret[EVP_MAX_MD_SIZE]; | |
965 | unsigned char handshake_secret[EVP_MAX_MD_SIZE]; | |
966 | unsigned char client_finished_secret[EVP_MAX_MD_SIZE]; | |
967 | unsigned char server_finished_secret[EVP_MAX_MD_SIZE]; | |
968 | EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */ | |
969 | unsigned char read_iv[EVP_MAX_IV_LENGTH]; /* TLSv1.3 static read IV */ | |
970 | EVP_MD_CTX *read_hash; /* used for mac generation */ | |
971 | COMP_CTX *compress; /* compression */ | |
972 | COMP_CTX *expand; /* uncompress */ | |
973 | EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */ | |
974 | unsigned char write_iv[EVP_MAX_IV_LENGTH]; /* TLSv1.3 static write IV */ | |
975 | EVP_MD_CTX *write_hash; /* used for mac generation */ | |
976 | /* session info */ | |
977 | /* client cert? */ | |
978 | /* This is used to hold the server certificate used */ | |
979 | struct cert_st /* CERT */ *cert; | |
980 | /* | |
981 | * the session_id_context is used to ensure sessions are only reused in | |
982 | * the appropriate context | |
983 | */ | |
984 | size_t sid_ctx_length; | |
985 | unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; | |
986 | /* This can also be in the session once a session is established */ | |
987 | SSL_SESSION *session; | |
988 | /* Default generate session ID callback. */ | |
989 | GEN_SESSION_CB generate_session_id; | |
990 | /* Used in SSL3 */ | |
991 | /* | |
992 | * 0 don't care about verify failure. | |
993 | * 1 fail if verify fails | |
994 | */ | |
995 | uint32_t verify_mode; | |
996 | /* fail if callback returns 0 */ | |
997 | int (*verify_callback) (int ok, X509_STORE_CTX *ctx); | |
998 | /* optional informational callback */ | |
999 | void (*info_callback) (const SSL *ssl, int type, int val); | |
1000 | /* error bytes to be written */ | |
1001 | int error; | |
1002 | /* actual code */ | |
1003 | int error_code; | |
1004 | # ifndef OPENSSL_NO_PSK | |
1005 | unsigned int (*psk_client_callback) (SSL *ssl, const char *hint, | |
1006 | char *identity, | |
1007 | unsigned int max_identity_len, | |
1008 | unsigned char *psk, | |
1009 | unsigned int max_psk_len); | |
1010 | unsigned int (*psk_server_callback) (SSL *ssl, const char *identity, | |
1011 | unsigned char *psk, | |
1012 | unsigned int max_psk_len); | |
1013 | # endif | |
1014 | SSL_CTX *ctx; | |
1015 | /* Verified chain of peer */ | |
1016 | STACK_OF(X509) *verified_chain; | |
1017 | long verify_result; | |
1018 | /* extra application data */ | |
1019 | CRYPTO_EX_DATA ex_data; | |
1020 | /* for server side, keep the list of CA_dn we can use */ | |
1021 | STACK_OF(X509_NAME) *client_CA; | |
1022 | CRYPTO_REF_COUNT references; | |
1023 | /* protocol behaviour */ | |
1024 | uint32_t options; | |
1025 | /* API behaviour */ | |
1026 | uint32_t mode; | |
1027 | int min_proto_version; | |
1028 | int max_proto_version; | |
1029 | size_t max_cert_list; | |
1030 | int first_packet; | |
1031 | /* | |
1032 | * What was passed in ClientHello.legacy_version. Used for RSA pre-master | |
1033 | * secret and SSLv3/TLS (<=1.2) rollback check | |
1034 | */ | |
1035 | int client_version; | |
1036 | /* | |
1037 | * If we're using more than one pipeline how should we divide the data | |
1038 | * up between the pipes? | |
1039 | */ | |
1040 | size_t split_send_fragment; | |
1041 | /* | |
1042 | * Maximum amount of data to send in one fragment. actual record size can | |
1043 | * be more than this due to padding and MAC overheads. | |
1044 | */ | |
1045 | size_t max_send_fragment; | |
1046 | /* Up to how many pipelines should we use? If 0 then 1 is assumed */ | |
1047 | size_t max_pipelines; | |
1048 | ||
1049 | struct { | |
1050 | /* TLS extension debug callback */ | |
1051 | void (*debug_cb) (SSL *s, int client_server, int type, | |
1052 | const unsigned char *data, int len, void *arg); | |
1053 | void *debug_arg; | |
1054 | char *hostname; | |
1055 | /* certificate status request info */ | |
1056 | /* Status type or -1 if no status type */ | |
1057 | int status_type; | |
1058 | /* Raw extension data, if seen */ | |
1059 | unsigned char *scts; | |
1060 | /* Length of raw extension data, if seen */ | |
1061 | uint16_t scts_len; | |
1062 | /* Expect OCSP CertificateStatus message */ | |
1063 | int status_expected; | |
1064 | ||
1065 | struct { | |
1066 | /* OCSP status request only */ | |
1067 | STACK_OF(OCSP_RESPID) *ids; | |
1068 | X509_EXTENSIONS *exts; | |
1069 | /* OCSP response received or to be sent */ | |
1070 | unsigned char *resp; | |
1071 | size_t resp_len; | |
1072 | } ocsp; | |
1073 | ||
1074 | /* RFC4507 session ticket expected to be received or sent */ | |
1075 | int ticket_expected; | |
1076 | # ifndef OPENSSL_NO_EC | |
1077 | size_t ecpointformats_len; | |
1078 | /* our list */ | |
1079 | unsigned char *ecpointformats; | |
1080 | size_t supportedgroups_len; | |
1081 | /* our list */ | |
1082 | unsigned char *supportedgroups; | |
1083 | # endif /* OPENSSL_NO_EC */ | |
1084 | /* TLS Session Ticket extension override */ | |
1085 | TLS_SESSION_TICKET_EXT *session_ticket; | |
1086 | /* TLS Session Ticket extension callback */ | |
1087 | tls_session_ticket_ext_cb_fn session_ticket_cb; | |
1088 | void *session_ticket_cb_arg; | |
1089 | /* TLS pre-shared secret session resumption */ | |
1090 | tls_session_secret_cb_fn session_secret_cb; | |
1091 | void *session_secret_cb_arg; | |
1092 | /* | |
1093 | * For a client, this contains the list of supported protocols in wire | |
1094 | * format. | |
1095 | */ | |
1096 | unsigned char *alpn; | |
1097 | size_t alpn_len; | |
1098 | /* | |
1099 | * Next protocol negotiation. For the client, this is the protocol that | |
1100 | * we sent in NextProtocol and is set when handling ServerHello | |
1101 | * extensions. For a server, this is the client's selected_protocol from | |
1102 | * NextProtocol and is set when handling the NextProtocol message, before | |
1103 | * the Finished message. | |
1104 | */ | |
1105 | unsigned char *npn; | |
1106 | size_t npn_len; | |
1107 | } ext; | |
1108 | ||
1109 | /*- | |
1110 | * no further mod of servername | |
1111 | * 0 : call the servername extension callback. | |
1112 | * 1 : prepare 2, allow last ack just after in server callback. | |
1113 | * 2 : don't call servername callback, no ack in server hello | |
1114 | */ | |
1115 | int servername_done; | |
1116 | # ifndef OPENSSL_NO_CT | |
1117 | /* | |
1118 | * Validates that the SCTs (Signed Certificate Timestamps) are sufficient. | |
1119 | * If they are not, the connection should be aborted. | |
1120 | */ | |
1121 | ssl_ct_validation_cb ct_validation_callback; | |
1122 | /* User-supplied argument tha tis passed to the ct_validation_callback */ | |
1123 | void *ct_validation_callback_arg; | |
1124 | /* | |
1125 | * Consolidated stack of SCTs from all sources. | |
1126 | * Lazily populated by CT_get_peer_scts(SSL*) | |
1127 | */ | |
1128 | STACK_OF(SCT) *scts; | |
1129 | /* Have we attempted to find/parse SCTs yet? */ | |
1130 | int scts_parsed; | |
1131 | # endif | |
1132 | SSL_CTX *initial_ctx; /* initial ctx, used to store sessions */ | |
1133 | # ifndef OPENSSL_NO_NEXTPROTONEG | |
1134 | # endif | |
1135 | # define session_ctx initial_ctx | |
1136 | /* What we'll do */ | |
1137 | STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; | |
1138 | /* What's been chosen */ | |
1139 | SRTP_PROTECTION_PROFILE *srtp_profile; | |
1140 | /*- | |
1141 | * 1 if we are renegotiating. | |
1142 | * 2 if we are a server and are inside a handshake | |
1143 | * (i.e. not just sending a HelloRequest) | |
1144 | */ | |
1145 | int renegotiate; | |
1146 | # ifndef OPENSSL_NO_SRP | |
1147 | /* ctx for SRP authentication */ | |
1148 | SRP_CTX srp_ctx; | |
1149 | # endif | |
1150 | /* | |
1151 | * Callback for disabling session caching and ticket support on a session | |
1152 | * basis, depending on the chosen cipher. | |
1153 | */ | |
1154 | int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure); | |
1155 | RECORD_LAYER rlayer; | |
1156 | /* Default password callback. */ | |
1157 | pem_password_cb *default_passwd_callback; | |
1158 | /* Default password callback user data. */ | |
1159 | void *default_passwd_callback_userdata; | |
1160 | /* Async Job info */ | |
1161 | ASYNC_JOB *job; | |
1162 | ASYNC_WAIT_CTX *waitctx; | |
1163 | size_t asyncrw; | |
1164 | ||
1165 | CRYPTO_RWLOCK *lock; | |
1166 | }; | |
1167 | ||
1168 | typedef struct ssl3_state_st { | |
1169 | long flags; | |
1170 | size_t read_mac_secret_size; | |
1171 | unsigned char read_mac_secret[EVP_MAX_MD_SIZE]; | |
1172 | size_t write_mac_secret_size; | |
1173 | unsigned char write_mac_secret[EVP_MAX_MD_SIZE]; | |
1174 | unsigned char server_random[SSL3_RANDOM_SIZE]; | |
1175 | unsigned char client_random[SSL3_RANDOM_SIZE]; | |
1176 | /* flags for countermeasure against known-IV weakness */ | |
1177 | int need_empty_fragments; | |
1178 | int empty_fragment_done; | |
1179 | /* used during startup, digest all incoming/outgoing packets */ | |
1180 | BIO *handshake_buffer; | |
1181 | /* | |
1182 | * When handshake digest is determined, buffer is hashed and | |
1183 | * freed and MD_CTX for the required digest is stored here. | |
1184 | */ | |
1185 | EVP_MD_CTX *handshake_dgst; | |
1186 | /* | |
1187 | * Set whenever an expected ChangeCipherSpec message is processed. | |
1188 | * Unset when the peer's Finished message is received. | |
1189 | * Unexpected ChangeCipherSpec messages trigger a fatal alert. | |
1190 | */ | |
1191 | int change_cipher_spec; | |
1192 | int warn_alert; | |
1193 | int fatal_alert; | |
1194 | /* | |
1195 | * we allow one fatal and one warning alert to be outstanding, send close | |
1196 | * alert via the warning alert | |
1197 | */ | |
1198 | int alert_dispatch; | |
1199 | unsigned char send_alert[2]; | |
1200 | /* | |
1201 | * This flag is set when we should renegotiate ASAP, basically when there | |
1202 | * is no more data in the read or write buffers | |
1203 | */ | |
1204 | int renegotiate; | |
1205 | int total_renegotiations; | |
1206 | int num_renegotiations; | |
1207 | int in_read_app_data; | |
1208 | struct { | |
1209 | /* actually only need to be 16+20 for SSLv3 and 12 for TLS */ | |
1210 | unsigned char finish_md[EVP_MAX_MD_SIZE * 2]; | |
1211 | size_t finish_md_len; | |
1212 | unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2]; | |
1213 | size_t peer_finish_md_len; | |
1214 | size_t message_size; | |
1215 | int message_type; | |
1216 | /* used to hold the new cipher we are going to use */ | |
1217 | const SSL_CIPHER *new_cipher; | |
1218 | # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH) | |
1219 | EVP_PKEY *pkey; /* holds short lived DH/ECDH key */ | |
1220 | # endif | |
1221 | /* used for certificate requests */ | |
1222 | int cert_req; | |
1223 | int ctype_num; | |
1224 | char ctype[SSL3_CT_NUMBER]; | |
1225 | STACK_OF(X509_NAME) *ca_names; | |
1226 | size_t key_block_length; | |
1227 | unsigned char *key_block; | |
1228 | const EVP_CIPHER *new_sym_enc; | |
1229 | const EVP_MD *new_hash; | |
1230 | int new_mac_pkey_type; | |
1231 | size_t new_mac_secret_size; | |
1232 | # ifndef OPENSSL_NO_COMP | |
1233 | const SSL_COMP *new_compression; | |
1234 | # else | |
1235 | char *new_compression; | |
1236 | # endif | |
1237 | int cert_request; | |
1238 | /* Raw values of the cipher list from a client */ | |
1239 | unsigned char *ciphers_raw; | |
1240 | size_t ciphers_rawlen; | |
1241 | /* Temporary storage for premaster secret */ | |
1242 | unsigned char *pms; | |
1243 | size_t pmslen; | |
1244 | # ifndef OPENSSL_NO_PSK | |
1245 | /* Temporary storage for PSK key */ | |
1246 | unsigned char *psk; | |
1247 | size_t psklen; | |
1248 | # endif | |
1249 | /* | |
1250 | * signature algorithms peer reports: e.g. supported signature | |
1251 | * algorithms extension for server or as part of a certificate | |
1252 | * request for client. | |
1253 | */ | |
1254 | unsigned char *peer_sigalgs; | |
1255 | /* Size of above array */ | |
1256 | size_t peer_sigalgslen; | |
1257 | /* Digest peer uses for signing */ | |
1258 | const EVP_MD *peer_md; | |
1259 | /* Array of digests used for signing */ | |
1260 | const EVP_MD *md[SSL_PKEY_NUM]; | |
1261 | /* | |
1262 | * Set if corresponding CERT_PKEY can be used with current | |
1263 | * SSL session: e.g. appropriate curve, signature algorithms etc. | |
1264 | * If zero it can't be used at all. | |
1265 | */ | |
1266 | uint32_t valid_flags[SSL_PKEY_NUM]; | |
1267 | /* | |
1268 | * For servers the following masks are for the key and auth algorithms | |
1269 | * that are supported by the certs below. For clients they are masks of | |
1270 | * *disabled* algorithms based on the current session. | |
1271 | */ | |
1272 | uint32_t mask_k; | |
1273 | uint32_t mask_a; | |
1274 | /* | |
1275 | * The following are used by the client to see if a cipher is allowed or | |
1276 | * not. It contains the minimum and maximum version the client's using | |
1277 | * based on what it knows so far. | |
1278 | */ | |
1279 | int min_ver; | |
1280 | int max_ver; | |
1281 | } tmp; | |
1282 | ||
1283 | /* Connection binding to prevent renegotiation attacks */ | |
1284 | unsigned char previous_client_finished[EVP_MAX_MD_SIZE]; | |
1285 | size_t previous_client_finished_len; | |
1286 | unsigned char previous_server_finished[EVP_MAX_MD_SIZE]; | |
1287 | size_t previous_server_finished_len; | |
1288 | int send_connection_binding; /* TODOEKR */ | |
1289 | ||
1290 | # ifndef OPENSSL_NO_NEXTPROTONEG | |
1291 | /* | |
1292 | * Set if we saw the Next Protocol Negotiation extension from our peer. | |
1293 | */ | |
1294 | int npn_seen; | |
1295 | # endif | |
1296 | ||
1297 | /* | |
1298 | * ALPN information (we are in the process of transitioning from NPN to | |
1299 | * ALPN.) | |
1300 | */ | |
1301 | ||
1302 | /* | |
1303 | * In a server these point to the selected ALPN protocol after the | |
1304 | * ClientHello has been processed. In a client these contain the protocol | |
1305 | * that the server selected once the ServerHello has been processed. | |
1306 | */ | |
1307 | unsigned char *alpn_selected; | |
1308 | size_t alpn_selected_len; | |
1309 | /* used by the server to know what options were proposed */ | |
1310 | unsigned char *alpn_proposed; | |
1311 | size_t alpn_proposed_len; | |
1312 | /* used by the client to know if it actually sent alpn */ | |
1313 | int alpn_sent; | |
1314 | ||
1315 | # ifndef OPENSSL_NO_EC | |
1316 | /* | |
1317 | * This is set to true if we believe that this is a version of Safari | |
1318 | * running on OS X 10.6 or newer. We wish to know this because Safari on | |
1319 | * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. | |
1320 | */ | |
1321 | char is_probably_safari; | |
1322 | # endif /* !OPENSSL_NO_EC */ | |
1323 | ||
1324 | /* For clients: peer temporary key */ | |
1325 | # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH) | |
1326 | /* The group_id for the DH/ECDH key */ | |
1327 | unsigned int group_id; | |
1328 | EVP_PKEY *peer_tmp; | |
1329 | # endif | |
1330 | ||
1331 | } SSL3_STATE; | |
1332 | ||
1333 | /* DTLS structures */ | |
1334 | ||
1335 | # ifndef OPENSSL_NO_SCTP | |
1336 | # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP" | |
1337 | # endif | |
1338 | ||
1339 | /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */ | |
1340 | # define DTLS1_MAX_MTU_OVERHEAD 48 | |
1341 | ||
1342 | /* | |
1343 | * Flag used in message reuse to indicate the buffer contains the record | |
1344 | * header as well as the the handshake message header. | |
1345 | */ | |
1346 | # define DTLS1_SKIP_RECORD_HEADER 2 | |
1347 | ||
1348 | struct dtls1_retransmit_state { | |
1349 | EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */ | |
1350 | EVP_MD_CTX *write_hash; /* used for mac generation */ | |
1351 | COMP_CTX *compress; /* compression */ | |
1352 | SSL_SESSION *session; | |
1353 | unsigned short epoch; | |
1354 | }; | |
1355 | ||
1356 | struct hm_header_st { | |
1357 | unsigned char type; | |
1358 | size_t msg_len; | |
1359 | unsigned short seq; | |
1360 | size_t frag_off; | |
1361 | size_t frag_len; | |
1362 | unsigned int is_ccs; | |
1363 | struct dtls1_retransmit_state saved_retransmit_state; | |
1364 | }; | |
1365 | ||
1366 | struct dtls1_timeout_st { | |
1367 | /* Number of read timeouts so far */ | |
1368 | unsigned int read_timeouts; | |
1369 | /* Number of write timeouts so far */ | |
1370 | unsigned int write_timeouts; | |
1371 | /* Number of alerts received so far */ | |
1372 | unsigned int num_alerts; | |
1373 | }; | |
1374 | ||
1375 | typedef struct hm_fragment_st { | |
1376 | struct hm_header_st msg_header; | |
1377 | unsigned char *fragment; | |
1378 | unsigned char *reassembly; | |
1379 | } hm_fragment; | |
1380 | ||
1381 | typedef struct pqueue_st pqueue; | |
1382 | typedef struct pitem_st pitem; | |
1383 | ||
1384 | struct pitem_st { | |
1385 | unsigned char priority[8]; /* 64-bit value in big-endian encoding */ | |
1386 | void *data; | |
1387 | pitem *next; | |
1388 | }; | |
1389 | ||
1390 | typedef struct pitem_st *piterator; | |
1391 | ||
1392 | pitem *pitem_new(unsigned char *prio64be, void *data); | |
1393 | void pitem_free(pitem *item); | |
1394 | pqueue *pqueue_new(void); | |
1395 | void pqueue_free(pqueue *pq); | |
1396 | pitem *pqueue_insert(pqueue *pq, pitem *item); | |
1397 | pitem *pqueue_peek(pqueue *pq); | |
1398 | pitem *pqueue_pop(pqueue *pq); | |
1399 | pitem *pqueue_find(pqueue *pq, unsigned char *prio64be); | |
1400 | pitem *pqueue_iterator(pqueue *pq); | |
1401 | pitem *pqueue_next(piterator *iter); | |
1402 | size_t pqueue_size(pqueue *pq); | |
1403 | ||
1404 | typedef struct dtls1_state_st { | |
1405 | unsigned char cookie[DTLS1_COOKIE_LENGTH]; | |
1406 | size_t cookie_len; | |
1407 | unsigned int cookie_verified; | |
1408 | /* handshake message numbers */ | |
1409 | unsigned short handshake_write_seq; | |
1410 | unsigned short next_handshake_write_seq; | |
1411 | unsigned short handshake_read_seq; | |
1412 | /* Buffered handshake messages */ | |
1413 | pqueue *buffered_messages; | |
1414 | /* Buffered (sent) handshake records */ | |
1415 | pqueue *sent_messages; | |
1416 | size_t link_mtu; /* max on-the-wire DTLS packet size */ | |
1417 | size_t mtu; /* max DTLS packet size */ | |
1418 | struct hm_header_st w_msg_hdr; | |
1419 | struct hm_header_st r_msg_hdr; | |
1420 | struct dtls1_timeout_st timeout; | |
1421 | /* | |
1422 | * Indicates when the last handshake msg sent will timeout | |
1423 | */ | |
1424 | struct timeval next_timeout; | |
1425 | /* Timeout duration */ | |
1426 | unsigned short timeout_duration; | |
1427 | unsigned int retransmitting; | |
1428 | # ifndef OPENSSL_NO_SCTP | |
1429 | int shutdown_received; | |
1430 | # endif | |
1431 | } DTLS1_STATE; | |
1432 | ||
1433 | # ifndef OPENSSL_NO_EC | |
1434 | /* | |
1435 | * From ECC-TLS draft, used in encoding the curve type in ECParameters | |
1436 | */ | |
1437 | # define EXPLICIT_PRIME_CURVE_TYPE 1 | |
1438 | # define EXPLICIT_CHAR2_CURVE_TYPE 2 | |
1439 | # define NAMED_CURVE_TYPE 3 | |
1440 | # endif /* OPENSSL_NO_EC */ | |
1441 | ||
1442 | typedef struct cert_pkey_st { | |
1443 | X509 *x509; | |
1444 | EVP_PKEY *privatekey; | |
1445 | /* Chain for this certificate */ | |
1446 | STACK_OF(X509) *chain; | |
1447 | /*- | |
1448 | * serverinfo data for this certificate. The data is in TLS Extension | |
1449 | * wire format, specifically it's a series of records like: | |
1450 | * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension) | |
1451 | * uint16_t length; | |
1452 | * uint8_t data[length]; | |
1453 | */ | |
1454 | unsigned char *serverinfo; | |
1455 | size_t serverinfo_length; | |
1456 | } CERT_PKEY; | |
1457 | /* Retrieve Suite B flags */ | |
1458 | # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS) | |
1459 | /* Uses to check strict mode: suite B modes are always strict */ | |
1460 | # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \ | |
1461 | (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT) | |
1462 | ||
1463 | typedef struct { | |
1464 | unsigned short ext_type; | |
1465 | /* | |
1466 | * Per-connection flags relating to this extension type: not used if | |
1467 | * part of an SSL_CTX structure. | |
1468 | */ | |
1469 | uint32_t ext_flags; | |
1470 | custom_ext_add_cb add_cb; | |
1471 | custom_ext_free_cb free_cb; | |
1472 | void *add_arg; | |
1473 | custom_ext_parse_cb parse_cb; | |
1474 | void *parse_arg; | |
1475 | } custom_ext_method; | |
1476 | ||
1477 | /* ext_flags values */ | |
1478 | ||
1479 | /* | |
1480 | * Indicates an extension has been received. Used to check for unsolicited or | |
1481 | * duplicate extensions. | |
1482 | */ | |
1483 | # define SSL_EXT_FLAG_RECEIVED 0x1 | |
1484 | /* | |
1485 | * Indicates an extension has been sent: used to enable sending of | |
1486 | * corresponding ServerHello extension. | |
1487 | */ | |
1488 | # define SSL_EXT_FLAG_SENT 0x2 | |
1489 | ||
1490 | typedef struct { | |
1491 | custom_ext_method *meths; | |
1492 | size_t meths_count; | |
1493 | } custom_ext_methods; | |
1494 | ||
1495 | typedef struct cert_st { | |
1496 | /* Current active set */ | |
1497 | /* | |
1498 | * ALWAYS points to an element of the pkeys array | |
1499 | * Probably it would make more sense to store | |
1500 | * an index, not a pointer. | |
1501 | */ | |
1502 | CERT_PKEY *key; | |
1503 | # ifndef OPENSSL_NO_DH | |
1504 | EVP_PKEY *dh_tmp; | |
1505 | DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize); | |
1506 | int dh_tmp_auto; | |
1507 | # endif | |
1508 | /* Flags related to certificates */ | |
1509 | uint32_t cert_flags; | |
1510 | CERT_PKEY pkeys[SSL_PKEY_NUM]; | |
1511 | /* | |
1512 | * Certificate types (received or sent) in certificate request message. | |
1513 | * On receive this is only set if number of certificate types exceeds | |
1514 | * SSL3_CT_NUMBER. | |
1515 | */ | |
1516 | unsigned char *ctypes; | |
1517 | size_t ctype_num; | |
1518 | /* | |
1519 | * supported signature algorithms. When set on a client this is sent in | |
1520 | * the client hello as the supported signature algorithms extension. For | |
1521 | * servers it represents the signature algorithms we are willing to use. | |
1522 | */ | |
1523 | unsigned char *conf_sigalgs; | |
1524 | /* Size of above array */ | |
1525 | size_t conf_sigalgslen; | |
1526 | /* | |
1527 | * Client authentication signature algorithms, if not set then uses | |
1528 | * conf_sigalgs. On servers these will be the signature algorithms sent | |
1529 | * to the client in a cerificate request for TLS 1.2. On a client this | |
1530 | * represents the signature algortithms we are willing to use for client | |
1531 | * authentication. | |
1532 | */ | |
1533 | unsigned char *client_sigalgs; | |
1534 | /* Size of above array */ | |
1535 | size_t client_sigalgslen; | |
1536 | /* | |
1537 | * Signature algorithms shared by client and server: cached because these | |
1538 | * are used most often. | |
1539 | */ | |
1540 | TLS_SIGALGS *shared_sigalgs; | |
1541 | size_t shared_sigalgslen; | |
1542 | /* | |
1543 | * Certificate setup callback: if set is called whenever a certificate | |
1544 | * may be required (client or server). the callback can then examine any | |
1545 | * appropriate parameters and setup any certificates required. This | |
1546 | * allows advanced applications to select certificates on the fly: for | |
1547 | * example based on supported signature algorithms or curves. | |
1548 | */ | |
1549 | int (*cert_cb) (SSL *ssl, void *arg); | |
1550 | void *cert_cb_arg; | |
1551 | /* | |
1552 | * Optional X509_STORE for chain building or certificate validation If | |
1553 | * NULL the parent SSL_CTX store is used instead. | |
1554 | */ | |
1555 | X509_STORE *chain_store; | |
1556 | X509_STORE *verify_store; | |
1557 | /* Custom extension methods for server and client */ | |
1558 | custom_ext_methods cli_ext; | |
1559 | custom_ext_methods srv_ext; | |
1560 | /* Security callback */ | |
1561 | int (*sec_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid, | |
1562 | void *other, void *ex); | |
1563 | /* Security level */ | |
1564 | int sec_level; | |
1565 | void *sec_ex; | |
1566 | # ifndef OPENSSL_NO_PSK | |
1567 | /* If not NULL psk identity hint to use for servers */ | |
1568 | char *psk_identity_hint; | |
1569 | # endif | |
1570 | CRYPTO_REF_COUNT references; /* >1 only if SSL_copy_session_id is used */ | |
1571 | CRYPTO_RWLOCK *lock; | |
1572 | } CERT; | |
1573 | ||
1574 | /* Structure containing decoded values of signature algorithms extension */ | |
1575 | struct tls_sigalgs_st { | |
1576 | /* NID of hash algorithm */ | |
1577 | int hash_nid; | |
1578 | /* NID of signature algorithm */ | |
1579 | int sign_nid; | |
1580 | /* Combined hash and signature NID */ | |
1581 | int signandhash_nid; | |
1582 | /* Raw values used in extension */ | |
1583 | unsigned char rsign; | |
1584 | unsigned char rhash; | |
1585 | }; | |
1586 | ||
1587 | # define FP_ICC (int (*)(const void *,const void *)) | |
1588 | ||
1589 | /* | |
1590 | * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit | |
1591 | * of a mess of functions, but hell, think of it as an opaque structure :-) | |
1592 | */ | |
1593 | typedef struct ssl3_enc_method { | |
1594 | int (*enc) (SSL *, SSL3_RECORD *, size_t, int); | |
1595 | int (*mac) (SSL *, SSL3_RECORD *, unsigned char *, int); | |
1596 | int (*setup_key_block) (SSL *); | |
1597 | int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *, | |
1598 | size_t, size_t *); | |
1599 | int (*change_cipher_state) (SSL *, int); | |
1600 | size_t (*final_finish_mac) (SSL *, const char *, size_t, unsigned char *); | |
1601 | const char *client_finished_label; | |
1602 | size_t client_finished_label_len; | |
1603 | const char *server_finished_label; | |
1604 | size_t server_finished_label_len; | |
1605 | int (*alert_value) (int); | |
1606 | int (*export_keying_material) (SSL *, unsigned char *, size_t, | |
1607 | const char *, size_t, | |
1608 | const unsigned char *, size_t, | |
1609 | int use_context); | |
1610 | /* Various flags indicating protocol version requirements */ | |
1611 | uint32_t enc_flags; | |
1612 | /* Set the handshake header */ | |
1613 | int (*set_handshake_header) (SSL *s, WPACKET *pkt, int type); | |
1614 | /* Close construction of the handshake message */ | |
1615 | int (*close_construct_packet) (SSL *s, WPACKET *pkt, int htype); | |
1616 | /* Write out handshake message */ | |
1617 | int (*do_write) (SSL *s); | |
1618 | } SSL3_ENC_METHOD; | |
1619 | ||
1620 | # define ssl_set_handshake_header(s, pkt, htype) \ | |
1621 | s->method->ssl3_enc->set_handshake_header((s), (pkt), (htype)) | |
1622 | # define ssl_close_construct_packet(s, pkt, htype) \ | |
1623 | s->method->ssl3_enc->close_construct_packet((s), (pkt), (htype)) | |
1624 | # define ssl_do_write(s) s->method->ssl3_enc->do_write(s) | |
1625 | ||
1626 | /* Values for enc_flags */ | |
1627 | ||
1628 | /* Uses explicit IV for CBC mode */ | |
1629 | # define SSL_ENC_FLAG_EXPLICIT_IV 0x1 | |
1630 | /* Uses signature algorithms extension */ | |
1631 | # define SSL_ENC_FLAG_SIGALGS 0x2 | |
1632 | /* Uses SHA256 default PRF */ | |
1633 | # define SSL_ENC_FLAG_SHA256_PRF 0x4 | |
1634 | /* Is DTLS */ | |
1635 | # define SSL_ENC_FLAG_DTLS 0x8 | |
1636 | /* | |
1637 | * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may | |
1638 | * apply to others in future. | |
1639 | */ | |
1640 | # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10 | |
1641 | ||
1642 | # ifndef OPENSSL_NO_COMP | |
1643 | /* Used for holding the relevant compression methods loaded into SSL_CTX */ | |
1644 | typedef struct ssl3_comp_st { | |
1645 | int comp_id; /* The identifier byte for this compression | |
1646 | * type */ | |
1647 | char *name; /* Text name used for the compression type */ | |
1648 | COMP_METHOD *method; /* The method :-) */ | |
1649 | } SSL3_COMP; | |
1650 | # endif | |
1651 | ||
1652 | typedef struct raw_extension_st { | |
1653 | /* Raw packet data for the extension */ | |
1654 | PACKET data; | |
1655 | /* Set to 1 if the extension is present or 0 otherwise */ | |
1656 | int present; | |
1657 | /* Set to 1 if we have already parsed the extension or 0 otherwise */ | |
1658 | int parsed; | |
1659 | /* The type of this extension, i.e. a TLSEXT_TYPE_* value */ | |
1660 | unsigned int type; | |
1661 | } RAW_EXTENSION; | |
1662 | ||
1663 | /* | |
1664 | * Extension index values NOTE: Any updates to these defines should be mirrored | |
1665 | * with equivalent updates to ext_defs in extensions.c | |
1666 | */ | |
1667 | typedef enum tlsext_index_en { | |
1668 | TLSEXT_IDX_renegotiate, | |
1669 | TLSEXT_IDX_server_name, | |
1670 | TLSEXT_IDX_srp, | |
1671 | TLSEXT_IDX_ec_point_formats, | |
1672 | TLSEXT_IDX_supported_groups, | |
1673 | TLSEXT_IDX_session_ticket, | |
1674 | TLSEXT_IDX_signature_algorithms, | |
1675 | TLSEXT_IDX_status_request, | |
1676 | TLSEXT_IDX_next_proto_neg, | |
1677 | TLSEXT_IDX_application_layer_protocol_negotiation, | |
1678 | TLSEXT_IDX_use_srtp, | |
1679 | TLSEXT_IDX_encrypt_then_mac, | |
1680 | TLSEXT_IDX_signed_certificate_timestamp, | |
1681 | TLSEXT_IDX_extended_master_secret, | |
1682 | TLSEXT_IDX_supported_versions, | |
1683 | TLSEXT_IDX_key_share, | |
1684 | TLSEXT_IDX_cryptopro_bug, | |
1685 | TLSEXT_IDX_padding | |
1686 | } TLSEXT_INDEX; | |
1687 | ||
1688 | /* | |
1689 | * Dummy status type for the status_type extension. Indicates no status type | |
1690 | * set | |
1691 | */ | |
1692 | #define TLSEXT_STATUSTYPE_nothing -1 | |
1693 | ||
1694 | #define MAX_COMPRESSIONS_SIZE 255 | |
1695 | ||
1696 | typedef struct { | |
1697 | unsigned int isv2; | |
1698 | unsigned int legacy_version; | |
1699 | unsigned char random[SSL3_RANDOM_SIZE]; | |
1700 | size_t session_id_len; | |
1701 | unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH]; | |
1702 | size_t dtls_cookie_len; | |
1703 | unsigned char dtls_cookie[DTLS1_COOKIE_LENGTH]; | |
1704 | PACKET ciphersuites; | |
1705 | size_t compressions_len; | |
1706 | unsigned char compressions[MAX_COMPRESSIONS_SIZE]; | |
1707 | PACKET extensions; | |
1708 | RAW_EXTENSION *pre_proc_exts; | |
1709 | } CLIENTHELLO_MSG; | |
1710 | ||
1711 | extern SSL3_ENC_METHOD ssl3_undef_enc_method; | |
1712 | ||
1713 | __owur const SSL_METHOD *ssl_bad_method(int ver); | |
1714 | __owur const SSL_METHOD *sslv3_method(void); | |
1715 | __owur const SSL_METHOD *sslv3_server_method(void); | |
1716 | __owur const SSL_METHOD *sslv3_client_method(void); | |
1717 | __owur const SSL_METHOD *tlsv1_method(void); | |
1718 | __owur const SSL_METHOD *tlsv1_server_method(void); | |
1719 | __owur const SSL_METHOD *tlsv1_client_method(void); | |
1720 | __owur const SSL_METHOD *tlsv1_1_method(void); | |
1721 | __owur const SSL_METHOD *tlsv1_1_server_method(void); | |
1722 | __owur const SSL_METHOD *tlsv1_1_client_method(void); | |
1723 | __owur const SSL_METHOD *tlsv1_2_method(void); | |
1724 | __owur const SSL_METHOD *tlsv1_2_server_method(void); | |
1725 | __owur const SSL_METHOD *tlsv1_2_client_method(void); | |
1726 | __owur const SSL_METHOD *tlsv1_3_method(void); | |
1727 | __owur const SSL_METHOD *tlsv1_3_server_method(void); | |
1728 | __owur const SSL_METHOD *tlsv1_3_client_method(void); | |
1729 | __owur const SSL_METHOD *dtlsv1_method(void); | |
1730 | __owur const SSL_METHOD *dtlsv1_server_method(void); | |
1731 | __owur const SSL_METHOD *dtlsv1_client_method(void); | |
1732 | __owur const SSL_METHOD *dtls_bad_ver_client_method(void); | |
1733 | __owur const SSL_METHOD *dtlsv1_2_method(void); | |
1734 | __owur const SSL_METHOD *dtlsv1_2_server_method(void); | |
1735 | __owur const SSL_METHOD *dtlsv1_2_client_method(void); | |
1736 | ||
1737 | extern const SSL3_ENC_METHOD TLSv1_enc_data; | |
1738 | extern const SSL3_ENC_METHOD TLSv1_1_enc_data; | |
1739 | extern const SSL3_ENC_METHOD TLSv1_2_enc_data; | |
1740 | extern const SSL3_ENC_METHOD TLSv1_3_enc_data; | |
1741 | extern const SSL3_ENC_METHOD SSLv3_enc_data; | |
1742 | extern const SSL3_ENC_METHOD DTLSv1_enc_data; | |
1743 | extern const SSL3_ENC_METHOD DTLSv1_2_enc_data; | |
1744 | ||
1745 | /* | |
1746 | * Flags for SSL methods | |
1747 | */ | |
1748 | # define SSL_METHOD_NO_FIPS (1U<<0) | |
1749 | # define SSL_METHOD_NO_SUITEB (1U<<1) | |
1750 | ||
1751 | # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \ | |
1752 | s_connect, enc_data) \ | |
1753 | const SSL_METHOD *func_name(void) \ | |
1754 | { \ | |
1755 | static const SSL_METHOD func_name##_data= { \ | |
1756 | version, \ | |
1757 | flags, \ | |
1758 | mask, \ | |
1759 | tls1_new, \ | |
1760 | tls1_clear, \ | |
1761 | tls1_free, \ | |
1762 | s_accept, \ | |
1763 | s_connect, \ | |
1764 | ssl3_read, \ | |
1765 | ssl3_peek, \ | |
1766 | ssl3_write, \ | |
1767 | ssl3_shutdown, \ | |
1768 | ssl3_renegotiate, \ | |
1769 | ssl3_renegotiate_check, \ | |
1770 | ssl3_read_bytes, \ | |
1771 | ssl3_write_bytes, \ | |
1772 | ssl3_dispatch_alert, \ | |
1773 | ssl3_ctrl, \ | |
1774 | ssl3_ctx_ctrl, \ | |
1775 | ssl3_get_cipher_by_char, \ | |
1776 | ssl3_put_cipher_by_char, \ | |
1777 | ssl3_pending, \ | |
1778 | ssl3_num_ciphers, \ | |
1779 | ssl3_get_cipher, \ | |
1780 | tls1_default_timeout, \ | |
1781 | &enc_data, \ | |
1782 | ssl_undefined_void_function, \ | |
1783 | ssl3_callback_ctrl, \ | |
1784 | ssl3_ctx_callback_ctrl, \ | |
1785 | }; \ | |
1786 | return &func_name##_data; \ | |
1787 | } | |
1788 | ||
1789 | # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \ | |
1790 | const SSL_METHOD *func_name(void) \ | |
1791 | { \ | |
1792 | static const SSL_METHOD func_name##_data= { \ | |
1793 | SSL3_VERSION, \ | |
1794 | SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \ | |
1795 | SSL_OP_NO_SSLv3, \ | |
1796 | ssl3_new, \ | |
1797 | ssl3_clear, \ | |
1798 | ssl3_free, \ | |
1799 | s_accept, \ | |
1800 | s_connect, \ | |
1801 | ssl3_read, \ | |
1802 | ssl3_peek, \ | |
1803 | ssl3_write, \ | |
1804 | ssl3_shutdown, \ | |
1805 | ssl3_renegotiate, \ | |
1806 | ssl3_renegotiate_check, \ | |
1807 | ssl3_read_bytes, \ | |
1808 | ssl3_write_bytes, \ | |
1809 | ssl3_dispatch_alert, \ | |
1810 | ssl3_ctrl, \ | |
1811 | ssl3_ctx_ctrl, \ | |
1812 | ssl3_get_cipher_by_char, \ | |
1813 | ssl3_put_cipher_by_char, \ | |
1814 | ssl3_pending, \ | |
1815 | ssl3_num_ciphers, \ | |
1816 | ssl3_get_cipher, \ | |
1817 | ssl3_default_timeout, \ | |
1818 | &SSLv3_enc_data, \ | |
1819 | ssl_undefined_void_function, \ | |
1820 | ssl3_callback_ctrl, \ | |
1821 | ssl3_ctx_callback_ctrl, \ | |
1822 | }; \ | |
1823 | return &func_name##_data; \ | |
1824 | } | |
1825 | ||
1826 | # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \ | |
1827 | s_connect, enc_data) \ | |
1828 | const SSL_METHOD *func_name(void) \ | |
1829 | { \ | |
1830 | static const SSL_METHOD func_name##_data= { \ | |
1831 | version, \ | |
1832 | flags, \ | |
1833 | mask, \ | |
1834 | dtls1_new, \ | |
1835 | dtls1_clear, \ | |
1836 | dtls1_free, \ | |
1837 | s_accept, \ | |
1838 | s_connect, \ | |
1839 | ssl3_read, \ | |
1840 | ssl3_peek, \ | |
1841 | ssl3_write, \ | |
1842 | dtls1_shutdown, \ | |
1843 | ssl3_renegotiate, \ | |
1844 | ssl3_renegotiate_check, \ | |
1845 | dtls1_read_bytes, \ | |
1846 | dtls1_write_app_data_bytes, \ | |
1847 | dtls1_dispatch_alert, \ | |
1848 | dtls1_ctrl, \ | |
1849 | ssl3_ctx_ctrl, \ | |
1850 | ssl3_get_cipher_by_char, \ | |
1851 | ssl3_put_cipher_by_char, \ | |
1852 | ssl3_pending, \ | |
1853 | ssl3_num_ciphers, \ | |
1854 | ssl3_get_cipher, \ | |
1855 | dtls1_default_timeout, \ | |
1856 | &enc_data, \ | |
1857 | ssl_undefined_void_function, \ | |
1858 | ssl3_callback_ctrl, \ | |
1859 | ssl3_ctx_callback_ctrl, \ | |
1860 | }; \ | |
1861 | return &func_name##_data; \ | |
1862 | } | |
1863 | ||
1864 | struct openssl_ssl_test_functions { | |
1865 | int (*p_ssl_init_wbio_buffer) (SSL *s); | |
1866 | int (*p_ssl3_setup_buffers) (SSL *s); | |
1867 | }; | |
1868 | ||
1869 | const char *ssl_protocol_to_string(int version); | |
1870 | ||
1871 | # ifndef OPENSSL_UNIT_TEST | |
1872 | ||
1873 | void ssl_clear_cipher_ctx(SSL *s); | |
1874 | int ssl_clear_bad_session(SSL *s); | |
1875 | __owur CERT *ssl_cert_new(void); | |
1876 | __owur CERT *ssl_cert_dup(CERT *cert); | |
1877 | void ssl_cert_clear_certs(CERT *c); | |
1878 | void ssl_cert_free(CERT *c); | |
1879 | __owur int ssl_get_new_session(SSL *s, int session); | |
1880 | __owur int ssl_get_prev_session(SSL *s, CLIENTHELLO_MSG *hello); | |
1881 | __owur SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket); | |
1882 | __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b); | |
1883 | DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); | |
1884 | __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
1885 | const SSL_CIPHER *const *bp); | |
1886 | __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *meth, | |
1887 | STACK_OF(SSL_CIPHER) **pref, | |
1888 | STACK_OF(SSL_CIPHER) | |
1889 | **sorted, | |
1890 | const char *rule_str, | |
1891 | CERT *c); | |
1892 | void ssl_update_cache(SSL *s, int mode); | |
1893 | __owur int ssl_cipher_get_evp(const SSL_SESSION *s, const EVP_CIPHER **enc, | |
1894 | const EVP_MD **md, int *mac_pkey_type, | |
1895 | size_t *mac_secret_size, SSL_COMP **comp, | |
1896 | int use_etm); | |
1897 | __owur int ssl_cipher_get_overhead(const SSL_CIPHER *c, size_t *mac_overhead, | |
1898 | size_t *int_overhead, size_t *blocksize, | |
1899 | size_t *ext_overhead); | |
1900 | __owur int ssl_cipher_get_cert_index(const SSL_CIPHER *c); | |
1901 | __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, | |
1902 | const unsigned char *ptr); | |
1903 | __owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain); | |
1904 | __owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain); | |
1905 | __owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x); | |
1906 | __owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x); | |
1907 | __owur int ssl_cert_select_current(CERT *c, X509 *x); | |
1908 | __owur int ssl_cert_set_current(CERT *c, long arg); | |
1909 | __owur X509 *ssl_cert_get0_next_certificate(CERT *c, int first); | |
1910 | void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg); | |
1911 | ||
1912 | __owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk); | |
1913 | __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags); | |
1914 | __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, | |
1915 | int ref); | |
1916 | ||
1917 | __owur int ssl_security(const SSL *s, int op, int bits, int nid, void *other); | |
1918 | __owur int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid, | |
1919 | void *other); | |
1920 | ||
1921 | int ssl_undefined_function(SSL *s); | |
1922 | __owur int ssl_undefined_void_function(void); | |
1923 | __owur int ssl_undefined_const_function(const SSL *s); | |
1924 | __owur CERT_PKEY *ssl_get_server_send_pkey(SSL *s); | |
1925 | __owur int ssl_get_server_cert_serverinfo(SSL *s, | |
1926 | const unsigned char **serverinfo, | |
1927 | size_t *serverinfo_length); | |
1928 | __owur EVP_PKEY *ssl_get_sign_pkey(SSL *s, const SSL_CIPHER *c, | |
1929 | const EVP_MD **pmd); | |
1930 | __owur int ssl_cert_type(const X509 *x, const EVP_PKEY *pkey); | |
1931 | void ssl_set_masks(SSL *s); | |
1932 | __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s); | |
1933 | __owur int ssl_verify_alarm_type(long type); | |
1934 | void ssl_sort_cipher_list(void); | |
1935 | void ssl_load_ciphers(void); | |
1936 | __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, | |
1937 | size_t len); | |
1938 | __owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen, | |
1939 | int free_pms); | |
1940 | __owur EVP_PKEY *ssl_generate_pkey(EVP_PKEY *pm); | |
1941 | __owur int ssl_derive(SSL *s, EVP_PKEY *privkey, EVP_PKEY *pubkey, | |
1942 | int genmaster); | |
1943 | __owur EVP_PKEY *ssl_dh_to_pkey(DH *dh); | |
1944 | ||
1945 | __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p); | |
1946 | __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, WPACKET *pkt, | |
1947 | size_t *len); | |
1948 | int ssl3_init_finished_mac(SSL *s); | |
1949 | __owur int ssl3_setup_key_block(SSL *s); | |
1950 | __owur int ssl3_change_cipher_state(SSL *s, int which); | |
1951 | void ssl3_cleanup_key_block(SSL *s); | |
1952 | __owur int ssl3_do_write(SSL *s, int type); | |
1953 | int ssl3_send_alert(SSL *s, int level, int desc); | |
1954 | __owur int ssl3_generate_master_secret(SSL *s, unsigned char *out, | |
1955 | unsigned char *p, size_t len, | |
1956 | size_t *secret_size); | |
1957 | __owur int ssl3_get_req_cert_type(SSL *s, WPACKET *pkt); | |
1958 | __owur int ssl3_num_ciphers(void); | |
1959 | __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u); | |
1960 | int ssl3_renegotiate(SSL *ssl); | |
1961 | int ssl3_renegotiate_check(SSL *ssl); | |
1962 | __owur int ssl3_dispatch_alert(SSL *s); | |
1963 | __owur size_t ssl3_final_finish_mac(SSL *s, const char *sender, size_t slen, | |
1964 | unsigned char *p); | |
1965 | __owur int ssl3_finish_mac(SSL *s, const unsigned char *buf, size_t len); | |
1966 | void ssl3_free_digest_list(SSL *s); | |
1967 | __owur unsigned long ssl3_output_cert_chain(SSL *s, WPACKET *pkt, | |
1968 | CERT_PKEY *cpk, int *al); | |
1969 | __owur const SSL_CIPHER *ssl3_choose_cipher(SSL *ssl, | |
1970 | STACK_OF(SSL_CIPHER) *clnt, | |
1971 | STACK_OF(SSL_CIPHER) *srvr); | |
1972 | __owur int ssl3_digest_cached_records(SSL *s, int keep); | |
1973 | __owur int ssl3_new(SSL *s); | |
1974 | void ssl3_free(SSL *s); | |
1975 | __owur int ssl3_read(SSL *s, void *buf, size_t len, size_t *readbytes); | |
1976 | __owur int ssl3_peek(SSL *s, void *buf, size_t len, size_t *readbytes); | |
1977 | __owur int ssl3_write(SSL *s, const void *buf, size_t len, size_t *written); | |
1978 | __owur int ssl3_shutdown(SSL *s); | |
1979 | void ssl3_clear(SSL *s); | |
1980 | __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg); | |
1981 | __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg); | |
1982 | __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void)); | |
1983 | __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void)); | |
1984 | ||
1985 | __owur int ssl3_do_change_cipher_spec(SSL *ssl); | |
1986 | __owur long ssl3_default_timeout(void); | |
1987 | ||
1988 | __owur int ssl3_set_handshake_header(SSL *s, WPACKET *pkt, int htype); | |
1989 | __owur int tls_close_construct_packet(SSL *s, WPACKET *pkt, int htype); | |
1990 | __owur int dtls1_set_handshake_header(SSL *s, WPACKET *pkt, int htype); | |
1991 | __owur int dtls1_close_construct_packet(SSL *s, WPACKET *pkt, int htype); | |
1992 | __owur int ssl3_handshake_write(SSL *s); | |
1993 | ||
1994 | __owur int ssl_allow_compression(SSL *s); | |
1995 | ||
1996 | __owur int ssl_version_supported(const SSL *s, int version); | |
1997 | ||
1998 | __owur int ssl_set_client_hello_version(SSL *s); | |
1999 | __owur int ssl_check_version_downgrade(SSL *s); | |
2000 | __owur int ssl_set_version_bound(int method_version, int version, int *bound); | |
2001 | __owur int ssl_choose_server_version(SSL *s, CLIENTHELLO_MSG *hello); | |
2002 | __owur int ssl_choose_client_version(SSL *s, int version); | |
2003 | int ssl_get_client_min_max_version(const SSL *s, int *min_version, | |
2004 | int *max_version); | |
2005 | ||
2006 | __owur long tls1_default_timeout(void); | |
2007 | __owur int dtls1_do_write(SSL *s, int type); | |
2008 | void dtls1_set_message_header(SSL *s, | |
2009 | unsigned char mt, | |
2010 | size_t len, | |
2011 | size_t frag_off, size_t frag_len); | |
2012 | ||
2013 | int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf_, size_t len, | |
2014 | size_t *written); | |
2015 | ||
2016 | __owur int dtls1_read_failed(SSL *s, int code); | |
2017 | __owur int dtls1_buffer_message(SSL *s, int ccs); | |
2018 | __owur int dtls1_retransmit_message(SSL *s, unsigned short seq, int *found); | |
2019 | __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs); | |
2020 | int dtls1_retransmit_buffered_messages(SSL *s); | |
2021 | void dtls1_clear_received_buffer(SSL *s); | |
2022 | void dtls1_clear_sent_buffer(SSL *s); | |
2023 | void dtls1_get_message_header(unsigned char *data, | |
2024 | struct hm_header_st *msg_hdr); | |
2025 | __owur long dtls1_default_timeout(void); | |
2026 | __owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft); | |
2027 | __owur int dtls1_check_timeout_num(SSL *s); | |
2028 | __owur int dtls1_handle_timeout(SSL *s); | |
2029 | void dtls1_start_timer(SSL *s); | |
2030 | void dtls1_stop_timer(SSL *s); | |
2031 | __owur int dtls1_is_timer_expired(SSL *s); | |
2032 | void dtls1_double_timeout(SSL *s); | |
2033 | __owur int dtls_raw_hello_verify_request(WPACKET *pkt, unsigned char *cookie, | |
2034 | size_t cookie_len); | |
2035 | __owur int dtls1_send_newsession_ticket(SSL *s); | |
2036 | __owur size_t dtls1_min_mtu(SSL *s); | |
2037 | void dtls1_hm_fragment_free(hm_fragment *frag); | |
2038 | __owur int dtls1_query_mtu(SSL *s); | |
2039 | ||
2040 | __owur int tls1_new(SSL *s); | |
2041 | void tls1_free(SSL *s); | |
2042 | void tls1_clear(SSL *s); | |
2043 | long tls1_ctrl(SSL *s, int cmd, long larg, void *parg); | |
2044 | long tls1_callback_ctrl(SSL *s, int cmd, void (*fp) (void)); | |
2045 | ||
2046 | __owur int dtls1_new(SSL *s); | |
2047 | void dtls1_free(SSL *s); | |
2048 | void dtls1_clear(SSL *s); | |
2049 | long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg); | |
2050 | __owur int dtls1_shutdown(SSL *s); | |
2051 | ||
2052 | __owur int dtls1_dispatch_alert(SSL *s); | |
2053 | ||
2054 | __owur int ssl_init_wbio_buffer(SSL *s); | |
2055 | void ssl_free_wbio_buffer(SSL *s); | |
2056 | ||
2057 | __owur int tls1_change_cipher_state(SSL *s, int which); | |
2058 | __owur int tls1_setup_key_block(SSL *s); | |
2059 | __owur size_t tls1_final_finish_mac(SSL *s, const char *str, size_t slen, | |
2060 | unsigned char *p); | |
2061 | __owur int tls1_generate_master_secret(SSL *s, unsigned char *out, | |
2062 | unsigned char *p, size_t len, | |
2063 | size_t *secret_size); | |
2064 | __owur int tls13_setup_key_block(SSL *s); | |
2065 | __owur size_t tls13_final_finish_mac(SSL *s, const char *str, size_t slen, | |
2066 | unsigned char *p); | |
2067 | __owur int tls13_change_cipher_state(SSL *s, int which); | |
2068 | __owur int tls13_derive_secret(SSL *s, const unsigned char *insecret, | |
2069 | const unsigned char *label, size_t labellen, | |
2070 | unsigned char *secret); | |
2071 | __owur int tls13_derive_key(SSL *s, const unsigned char *secret, | |
2072 | unsigned char *key, size_t keylen); | |
2073 | __owur int tls13_derive_iv(SSL *s, const unsigned char *secret, | |
2074 | unsigned char *iv, size_t ivlen); | |
2075 | __owur int tls13_generate_early_secret(SSL *s, const unsigned char *insecret, | |
2076 | size_t insecretlen); | |
2077 | __owur int tls13_generate_handshake_secret(SSL *s, | |
2078 | const unsigned char *insecret, | |
2079 | size_t insecretlen); | |
2080 | __owur int tls13_generate_master_secret(SSL *s, unsigned char *out, | |
2081 | unsigned char *prev, size_t prevlen, | |
2082 | size_t *secret_size); | |
2083 | __owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen, | |
2084 | const char *label, size_t llen, | |
2085 | const unsigned char *p, size_t plen, | |
2086 | int use_context); | |
2087 | __owur int tls1_alert_code(int code); | |
2088 | __owur int ssl3_alert_code(int code); | |
2089 | __owur int ssl_ok(SSL *s); | |
2090 | ||
2091 | # ifndef OPENSSL_NO_EC | |
2092 | __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s); | |
2093 | # endif | |
2094 | ||
2095 | SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n); | |
2096 | ||
2097 | # ifndef OPENSSL_NO_EC | |
2098 | /* Flags values from tls1_ec_curve_id2nid() */ | |
2099 | /* Mask for curve type */ | |
2100 | # define TLS_CURVE_TYPE 0x3 | |
2101 | # define TLS_CURVE_PRIME 0x0 | |
2102 | # define TLS_CURVE_CHAR2 0x1 | |
2103 | # define TLS_CURVE_CUSTOM 0x2 | |
2104 | __owur int tls1_ec_curve_id2nid(int curve_id, unsigned int *pflags); | |
2105 | __owur int tls1_ec_nid2curve_id(int nid); | |
2106 | __owur int tls1_check_curve(SSL *s, const unsigned char *p, size_t len); | |
2107 | __owur int tls1_shared_group(SSL *s, int nmatch); | |
2108 | __owur int tls1_set_groups(unsigned char **pext, size_t *pextlen, | |
2109 | int *curves, size_t ncurves); | |
2110 | __owur int tls1_set_groups_list(unsigned char **pext, size_t *pextlen, | |
2111 | const char *str); | |
2112 | void tls1_get_formatlist(SSL *s, const unsigned char **pformats, | |
2113 | size_t *num_formats); | |
2114 | __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id); | |
2115 | __owur EVP_PKEY *ssl_generate_pkey_curve(int id); | |
2116 | # endif /* OPENSSL_NO_EC */ | |
2117 | ||
2118 | __owur int tls1_shared_list(SSL *s, | |
2119 | const unsigned char *l1, size_t l1len, | |
2120 | const unsigned char *l2, size_t l2len, int nmatch); | |
2121 | __owur int tls_curve_allowed(SSL *s, const unsigned char *curve, int op); | |
2122 | __owur int tls1_get_curvelist(SSL *s, int sess, const unsigned char **pcurves, | |
2123 | size_t *num_curves); | |
2124 | ||
2125 | void ssl_set_default_md(SSL *s); | |
2126 | __owur int tls1_set_server_sigalgs(SSL *s); | |
2127 | __owur RAW_EXTENSION *tls_get_extension_by_type(RAW_EXTENSION *exts, | |
2128 | size_t numexts, | |
2129 | unsigned int type); | |
2130 | __owur int tls_get_ticket_from_client(SSL *s, CLIENTHELLO_MSG *hello, | |
2131 | SSL_SESSION **ret); | |
2132 | __owur int tls_use_ticket(SSL *s); | |
2133 | ||
2134 | __owur int tls12_get_sigandhash(WPACKET *pkt, const EVP_PKEY *pk, | |
2135 | const EVP_MD *md); | |
2136 | __owur int tls12_get_sigid(const EVP_PKEY *pk); | |
2137 | __owur const EVP_MD *tls12_get_hash(unsigned char hash_alg); | |
2138 | void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op); | |
2139 | ||
2140 | __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client); | |
2141 | __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, | |
2142 | int client); | |
2143 | int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain, | |
2144 | int idx); | |
2145 | void tls1_set_cert_validity(SSL *s); | |
2146 | ||
2147 | # ifndef OPENSSL_NO_CT | |
2148 | __owur int ssl_validate_ct(SSL *s); | |
2149 | # endif | |
2150 | ||
2151 | # ifndef OPENSSL_NO_DH | |
2152 | __owur DH *ssl_get_auto_dh(SSL *s); | |
2153 | # endif | |
2154 | ||
2155 | __owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee); | |
2156 | __owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, | |
2157 | int vfy); | |
2158 | ||
2159 | __owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md); | |
2160 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash); | |
2161 | __owur long ssl_get_algorithm2(SSL *s); | |
2162 | __owur int tls12_copy_sigalgs(SSL *s, WPACKET *pkt, | |
2163 | const unsigned char *psig, size_t psiglen); | |
2164 | __owur int tls1_save_sigalgs(SSL *s, const unsigned char *data, size_t dsize); | |
2165 | __owur int tls1_process_sigalgs(SSL *s); | |
2166 | __owur size_t tls12_get_psigalgs(SSL *s, const unsigned char **psigs); | |
2167 | __owur int tls12_check_peer_sigalg(const EVP_MD **pmd, SSL *s, | |
2168 | const unsigned char *sig, EVP_PKEY *pkey); | |
2169 | void ssl_set_client_disabled(SSL *s); | |
2170 | __owur int ssl_cipher_disabled(SSL *s, const SSL_CIPHER *c, int op); | |
2171 | ||
2172 | __owur int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, | |
2173 | size_t *hashlen); | |
2174 | __owur const EVP_MD *ssl_md(int idx); | |
2175 | __owur const EVP_MD *ssl_handshake_md(SSL *s); | |
2176 | __owur const EVP_MD *ssl_prf_md(SSL *s); | |
2177 | ||
2178 | /* s3_cbc.c */ | |
2179 | __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx); | |
2180 | __owur int ssl3_cbc_digest_record(const EVP_MD_CTX *ctx, | |
2181 | unsigned char *md_out, | |
2182 | size_t *md_out_size, | |
2183 | const unsigned char header[13], | |
2184 | const unsigned char *data, | |
2185 | size_t data_plus_mac_size, | |
2186 | size_t data_plus_mac_plus_padding_size, | |
2187 | const unsigned char *mac_secret, | |
2188 | size_t mac_secret_length, char is_sslv3); | |
2189 | ||
2190 | __owur int tls_fips_digest_extra(const EVP_CIPHER_CTX *cipher_ctx, | |
2191 | EVP_MD_CTX *mac_ctx, const unsigned char *data, | |
2192 | size_t data_len, size_t orig_len); | |
2193 | ||
2194 | __owur int srp_generate_server_master_secret(SSL *s); | |
2195 | __owur int srp_generate_client_master_secret(SSL *s); | |
2196 | __owur int srp_verify_server_param(SSL *s, int *al); | |
2197 | ||
2198 | /* t1_ext.c */ | |
2199 | ||
2200 | void custom_ext_init(custom_ext_methods *meths); | |
2201 | ||
2202 | __owur int custom_ext_parse(SSL *s, int server, | |
2203 | unsigned int ext_type, | |
2204 | const unsigned char *ext_data, size_t ext_size, | |
2205 | int *al); | |
2206 | __owur int custom_ext_add(SSL *s, int server, WPACKET *pkt, int *al); | |
2207 | ||
2208 | __owur int custom_exts_copy(custom_ext_methods *dst, | |
2209 | const custom_ext_methods *src); | |
2210 | void custom_exts_free(custom_ext_methods *exts); | |
2211 | ||
2212 | void ssl_comp_free_compression_methods_int(void); | |
2213 | ||
2214 | # else | |
2215 | ||
2216 | # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer | |
2217 | # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers | |
2218 | ||
2219 | # endif | |
2220 | #endif |