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1 | /* | |
2 | * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved. | |
3 | * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved | |
4 | * Copyright 2005 Nokia. All rights reserved. | |
5 | * | |
6 | * Licensed under the Apache License 2.0 (the "License"). You may not use | |
7 | * this file except in compliance with the License. You can obtain a copy | |
8 | * in the file LICENSE in the source distribution or at | |
9 | * https://www.openssl.org/source/license.html | |
10 | */ | |
11 | ||
12 | #ifndef OSSL_SSL_LOCAL_H | |
13 | # define OSSL_SSL_LOCAL_H | |
14 | ||
15 | # include "e_os.h" /* struct timeval for DTLS */ | |
16 | # include <stdlib.h> | |
17 | # include <time.h> | |
18 | # include <string.h> | |
19 | # include <errno.h> | |
20 | ||
21 | # include <openssl/buffer.h> | |
22 | # include <openssl/comp.h> | |
23 | # include <openssl/bio.h> | |
24 | # include <openssl/rsa.h> | |
25 | # include <openssl/dsa.h> | |
26 | # include <openssl/err.h> | |
27 | # include <openssl/ssl.h> | |
28 | # include <openssl/async.h> | |
29 | # include <openssl/symhacks.h> | |
30 | # include <openssl/ct.h> | |
31 | # include "record/record.h" | |
32 | # include "statem/statem.h" | |
33 | # include "internal/packet.h" | |
34 | # include "internal/dane.h" | |
35 | # include "internal/refcount.h" | |
36 | # include "internal/tsan_assist.h" | |
37 | # include "internal/bio.h" | |
38 | ||
39 | # ifdef OPENSSL_BUILD_SHLIBSSL | |
40 | # undef OPENSSL_EXTERN | |
41 | # define OPENSSL_EXTERN OPENSSL_EXPORT | |
42 | # endif | |
43 | ||
44 | # define c2l(c,l) (l = ((unsigned long)(*((c)++))) , \ | |
45 | l|=(((unsigned long)(*((c)++)))<< 8), \ | |
46 | l|=(((unsigned long)(*((c)++)))<<16), \ | |
47 | l|=(((unsigned long)(*((c)++)))<<24)) | |
48 | ||
49 | /* NOTE - c is not incremented as per c2l */ | |
50 | # define c2ln(c,l1,l2,n) { \ | |
51 | c+=n; \ | |
52 | l1=l2=0; \ | |
53 | switch (n) { \ | |
54 | case 8: l2 =((unsigned long)(*(--(c))))<<24; \ | |
55 | case 7: l2|=((unsigned long)(*(--(c))))<<16; \ | |
56 | case 6: l2|=((unsigned long)(*(--(c))))<< 8; \ | |
57 | case 5: l2|=((unsigned long)(*(--(c)))); \ | |
58 | case 4: l1 =((unsigned long)(*(--(c))))<<24; \ | |
59 | case 3: l1|=((unsigned long)(*(--(c))))<<16; \ | |
60 | case 2: l1|=((unsigned long)(*(--(c))))<< 8; \ | |
61 | case 1: l1|=((unsigned long)(*(--(c)))); \ | |
62 | } \ | |
63 | } | |
64 | ||
65 | # define l2c(l,c) (*((c)++)=(unsigned char)(((l) )&0xff), \ | |
66 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
67 | *((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
68 | *((c)++)=(unsigned char)(((l)>>24)&0xff)) | |
69 | ||
70 | # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24, \ | |
71 | l|=((unsigned long)(*((c)++)))<<16, \ | |
72 | l|=((unsigned long)(*((c)++)))<< 8, \ | |
73 | l|=((unsigned long)(*((c)++)))) | |
74 | ||
75 | # define n2l8(c,l) (l =((uint64_t)(*((c)++)))<<56, \ | |
76 | l|=((uint64_t)(*((c)++)))<<48, \ | |
77 | l|=((uint64_t)(*((c)++)))<<40, \ | |
78 | l|=((uint64_t)(*((c)++)))<<32, \ | |
79 | l|=((uint64_t)(*((c)++)))<<24, \ | |
80 | l|=((uint64_t)(*((c)++)))<<16, \ | |
81 | l|=((uint64_t)(*((c)++)))<< 8, \ | |
82 | l|=((uint64_t)(*((c)++)))) | |
83 | ||
84 | ||
85 | # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24)&0xff), \ | |
86 | *((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
87 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
88 | *((c)++)=(unsigned char)(((l) )&0xff)) | |
89 | ||
90 | # define l2n6(l,c) (*((c)++)=(unsigned char)(((l)>>40)&0xff), \ | |
91 | *((c)++)=(unsigned char)(((l)>>32)&0xff), \ | |
92 | *((c)++)=(unsigned char)(((l)>>24)&0xff), \ | |
93 | *((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
94 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
95 | *((c)++)=(unsigned char)(((l) )&0xff)) | |
96 | ||
97 | # define l2n8(l,c) (*((c)++)=(unsigned char)(((l)>>56)&0xff), \ | |
98 | *((c)++)=(unsigned char)(((l)>>48)&0xff), \ | |
99 | *((c)++)=(unsigned char)(((l)>>40)&0xff), \ | |
100 | *((c)++)=(unsigned char)(((l)>>32)&0xff), \ | |
101 | *((c)++)=(unsigned char)(((l)>>24)&0xff), \ | |
102 | *((c)++)=(unsigned char)(((l)>>16)&0xff), \ | |
103 | *((c)++)=(unsigned char)(((l)>> 8)&0xff), \ | |
104 | *((c)++)=(unsigned char)(((l) )&0xff)) | |
105 | ||
106 | /* NOTE - c is not incremented as per l2c */ | |
107 | # define l2cn(l1,l2,c,n) { \ | |
108 | c+=n; \ | |
109 | switch (n) { \ | |
110 | case 8: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \ | |
111 | case 7: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \ | |
112 | case 6: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \ | |
113 | case 5: *(--(c))=(unsigned char)(((l2) )&0xff); \ | |
114 | case 4: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \ | |
115 | case 3: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \ | |
116 | case 2: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \ | |
117 | case 1: *(--(c))=(unsigned char)(((l1) )&0xff); \ | |
118 | } \ | |
119 | } | |
120 | ||
121 | # define n2s(c,s) ((s=(((unsigned int)((c)[0]))<< 8)| \ | |
122 | (((unsigned int)((c)[1])) )),(c)+=2) | |
123 | # define s2n(s,c) (((c)[0]=(unsigned char)(((s)>> 8)&0xff), \ | |
124 | (c)[1]=(unsigned char)(((s) )&0xff)),(c)+=2) | |
125 | ||
126 | # define n2l3(c,l) ((l =(((unsigned long)((c)[0]))<<16)| \ | |
127 | (((unsigned long)((c)[1]))<< 8)| \ | |
128 | (((unsigned long)((c)[2])) )),(c)+=3) | |
129 | ||
130 | # define l2n3(l,c) (((c)[0]=(unsigned char)(((l)>>16)&0xff), \ | |
131 | (c)[1]=(unsigned char)(((l)>> 8)&0xff), \ | |
132 | (c)[2]=(unsigned char)(((l) )&0xff)),(c)+=3) | |
133 | ||
134 | # define TLS_MAX_VERSION_INTERNAL TLS1_3_VERSION | |
135 | # define DTLS_MAX_VERSION_INTERNAL DTLS1_2_VERSION | |
136 | ||
137 | /* | |
138 | * DTLS version numbers are strange because they're inverted. Except for | |
139 | * DTLS1_BAD_VER, which should be considered "lower" than the rest. | |
140 | */ | |
141 | # define dtls_ver_ordinal(v1) (((v1) == DTLS1_BAD_VER) ? 0xff00 : (v1)) | |
142 | # define DTLS_VERSION_GT(v1, v2) (dtls_ver_ordinal(v1) < dtls_ver_ordinal(v2)) | |
143 | # define DTLS_VERSION_GE(v1, v2) (dtls_ver_ordinal(v1) <= dtls_ver_ordinal(v2)) | |
144 | # define DTLS_VERSION_LT(v1, v2) (dtls_ver_ordinal(v1) > dtls_ver_ordinal(v2)) | |
145 | # define DTLS_VERSION_LE(v1, v2) (dtls_ver_ordinal(v1) >= dtls_ver_ordinal(v2)) | |
146 | ||
147 | ||
148 | /* | |
149 | * Define the Bitmasks for SSL_CIPHER.algorithms. | |
150 | * This bits are used packed as dense as possible. If new methods/ciphers | |
151 | * etc will be added, the bits a likely to change, so this information | |
152 | * is for internal library use only, even though SSL_CIPHER.algorithms | |
153 | * can be publicly accessed. | |
154 | * Use the according functions for cipher management instead. | |
155 | * | |
156 | * The bit mask handling in the selection and sorting scheme in | |
157 | * ssl_create_cipher_list() has only limited capabilities, reflecting | |
158 | * that the different entities within are mutually exclusive: | |
159 | * ONLY ONE BIT PER MASK CAN BE SET AT A TIME. | |
160 | */ | |
161 | ||
162 | /* Bits for algorithm_mkey (key exchange algorithm) */ | |
163 | /* RSA key exchange */ | |
164 | # define SSL_kRSA 0x00000001U | |
165 | /* tmp DH key no DH cert */ | |
166 | # define SSL_kDHE 0x00000002U | |
167 | /* synonym */ | |
168 | # define SSL_kEDH SSL_kDHE | |
169 | /* ephemeral ECDH */ | |
170 | # define SSL_kECDHE 0x00000004U | |
171 | /* synonym */ | |
172 | # define SSL_kEECDH SSL_kECDHE | |
173 | /* PSK */ | |
174 | # define SSL_kPSK 0x00000008U | |
175 | /* GOST key exchange */ | |
176 | # define SSL_kGOST 0x00000010U | |
177 | /* SRP */ | |
178 | # define SSL_kSRP 0x00000020U | |
179 | ||
180 | # define SSL_kRSAPSK 0x00000040U | |
181 | # define SSL_kECDHEPSK 0x00000080U | |
182 | # define SSL_kDHEPSK 0x00000100U | |
183 | /* GOST KDF key exchange, draft-smyshlyaev-tls12-gost-suites */ | |
184 | # define SSL_kGOST18 0x00000200U | |
185 | ||
186 | /* all PSK */ | |
187 | ||
188 | # define SSL_PSK (SSL_kPSK | SSL_kRSAPSK | SSL_kECDHEPSK | SSL_kDHEPSK) | |
189 | ||
190 | /* Any appropriate key exchange algorithm (for TLS 1.3 ciphersuites) */ | |
191 | # define SSL_kANY 0x00000000U | |
192 | ||
193 | /* Bits for algorithm_auth (server authentication) */ | |
194 | /* RSA auth */ | |
195 | # define SSL_aRSA 0x00000001U | |
196 | /* DSS auth */ | |
197 | # define SSL_aDSS 0x00000002U | |
198 | /* no auth (i.e. use ADH or AECDH) */ | |
199 | # define SSL_aNULL 0x00000004U | |
200 | /* ECDSA auth*/ | |
201 | # define SSL_aECDSA 0x00000008U | |
202 | /* PSK auth */ | |
203 | # define SSL_aPSK 0x00000010U | |
204 | /* GOST R 34.10-2001 signature auth */ | |
205 | # define SSL_aGOST01 0x00000020U | |
206 | /* SRP auth */ | |
207 | # define SSL_aSRP 0x00000040U | |
208 | /* GOST R 34.10-2012 signature auth */ | |
209 | # define SSL_aGOST12 0x00000080U | |
210 | /* Any appropriate signature auth (for TLS 1.3 ciphersuites) */ | |
211 | # define SSL_aANY 0x00000000U | |
212 | /* All bits requiring a certificate */ | |
213 | #define SSL_aCERT \ | |
214 | (SSL_aRSA | SSL_aDSS | SSL_aECDSA | SSL_aGOST01 | SSL_aGOST12) | |
215 | ||
216 | /* Bits for algorithm_enc (symmetric encryption) */ | |
217 | # define SSL_DES 0x00000001U | |
218 | # define SSL_3DES 0x00000002U | |
219 | # define SSL_RC4 0x00000004U | |
220 | # define SSL_RC2 0x00000008U | |
221 | # define SSL_IDEA 0x00000010U | |
222 | # define SSL_eNULL 0x00000020U | |
223 | # define SSL_AES128 0x00000040U | |
224 | # define SSL_AES256 0x00000080U | |
225 | # define SSL_CAMELLIA128 0x00000100U | |
226 | # define SSL_CAMELLIA256 0x00000200U | |
227 | # define SSL_eGOST2814789CNT 0x00000400U | |
228 | # define SSL_SEED 0x00000800U | |
229 | # define SSL_AES128GCM 0x00001000U | |
230 | # define SSL_AES256GCM 0x00002000U | |
231 | # define SSL_AES128CCM 0x00004000U | |
232 | # define SSL_AES256CCM 0x00008000U | |
233 | # define SSL_AES128CCM8 0x00010000U | |
234 | # define SSL_AES256CCM8 0x00020000U | |
235 | # define SSL_eGOST2814789CNT12 0x00040000U | |
236 | # define SSL_CHACHA20POLY1305 0x00080000U | |
237 | # define SSL_ARIA128GCM 0x00100000U | |
238 | # define SSL_ARIA256GCM 0x00200000U | |
239 | # define SSL_MAGMA 0x00400000U | |
240 | # define SSL_KUZNYECHIK 0x00800000U | |
241 | ||
242 | # define SSL_AESGCM (SSL_AES128GCM | SSL_AES256GCM) | |
243 | # define SSL_AESCCM (SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8) | |
244 | # define SSL_AES (SSL_AES128|SSL_AES256|SSL_AESGCM|SSL_AESCCM) | |
245 | # define SSL_CAMELLIA (SSL_CAMELLIA128|SSL_CAMELLIA256) | |
246 | # define SSL_CHACHA20 (SSL_CHACHA20POLY1305) | |
247 | # define SSL_ARIAGCM (SSL_ARIA128GCM | SSL_ARIA256GCM) | |
248 | # define SSL_ARIA (SSL_ARIAGCM) | |
249 | # define SSL_CBC (SSL_DES | SSL_3DES | SSL_RC2 | SSL_IDEA \ | |
250 | | SSL_AES128 | SSL_AES256 | SSL_CAMELLIA128 \ | |
251 | | SSL_CAMELLIA256 | SSL_SEED) | |
252 | ||
253 | /* Bits for algorithm_mac (symmetric authentication) */ | |
254 | ||
255 | # define SSL_MD5 0x00000001U | |
256 | # define SSL_SHA1 0x00000002U | |
257 | # define SSL_GOST94 0x00000004U | |
258 | # define SSL_GOST89MAC 0x00000008U | |
259 | # define SSL_SHA256 0x00000010U | |
260 | # define SSL_SHA384 0x00000020U | |
261 | /* Not a real MAC, just an indication it is part of cipher */ | |
262 | # define SSL_AEAD 0x00000040U | |
263 | # define SSL_GOST12_256 0x00000080U | |
264 | # define SSL_GOST89MAC12 0x00000100U | |
265 | # define SSL_GOST12_512 0x00000200U | |
266 | # define SSL_MAGMAOMAC 0x00000400U | |
267 | # define SSL_KUZNYECHIKOMAC 0x00000800U | |
268 | ||
269 | /* | |
270 | * When adding new digest in the ssl_ciph.c and increment SSL_MD_NUM_IDX make | |
271 | * sure to update this constant too | |
272 | */ | |
273 | ||
274 | # define SSL_MD_MD5_IDX 0 | |
275 | # define SSL_MD_SHA1_IDX 1 | |
276 | # define SSL_MD_GOST94_IDX 2 | |
277 | # define SSL_MD_GOST89MAC_IDX 3 | |
278 | # define SSL_MD_SHA256_IDX 4 | |
279 | # define SSL_MD_SHA384_IDX 5 | |
280 | # define SSL_MD_GOST12_256_IDX 6 | |
281 | # define SSL_MD_GOST89MAC12_IDX 7 | |
282 | # define SSL_MD_GOST12_512_IDX 8 | |
283 | # define SSL_MD_MD5_SHA1_IDX 9 | |
284 | # define SSL_MD_SHA224_IDX 10 | |
285 | # define SSL_MD_SHA512_IDX 11 | |
286 | # define SSL_MD_MAGMAOMAC_IDX 12 | |
287 | # define SSL_MD_KUZNYECHIKOMAC_IDX 13 | |
288 | # define SSL_MAX_DIGEST 14 | |
289 | ||
290 | #define SSL_MD_NUM_IDX SSL_MAX_DIGEST | |
291 | ||
292 | /* Bits for algorithm2 (handshake digests and other extra flags) */ | |
293 | ||
294 | /* Bits 0-7 are handshake MAC */ | |
295 | # define SSL_HANDSHAKE_MAC_MASK 0xFF | |
296 | # define SSL_HANDSHAKE_MAC_MD5_SHA1 SSL_MD_MD5_SHA1_IDX | |
297 | # define SSL_HANDSHAKE_MAC_SHA256 SSL_MD_SHA256_IDX | |
298 | # define SSL_HANDSHAKE_MAC_SHA384 SSL_MD_SHA384_IDX | |
299 | # define SSL_HANDSHAKE_MAC_GOST94 SSL_MD_GOST94_IDX | |
300 | # define SSL_HANDSHAKE_MAC_GOST12_256 SSL_MD_GOST12_256_IDX | |
301 | # define SSL_HANDSHAKE_MAC_GOST12_512 SSL_MD_GOST12_512_IDX | |
302 | # define SSL_HANDSHAKE_MAC_DEFAULT SSL_HANDSHAKE_MAC_MD5_SHA1 | |
303 | ||
304 | /* Bits 8-15 bits are PRF */ | |
305 | # define TLS1_PRF_DGST_SHIFT 8 | |
306 | # define TLS1_PRF_SHA1_MD5 (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT) | |
307 | # define TLS1_PRF_SHA256 (SSL_MD_SHA256_IDX << TLS1_PRF_DGST_SHIFT) | |
308 | # define TLS1_PRF_SHA384 (SSL_MD_SHA384_IDX << TLS1_PRF_DGST_SHIFT) | |
309 | # define TLS1_PRF_GOST94 (SSL_MD_GOST94_IDX << TLS1_PRF_DGST_SHIFT) | |
310 | # define TLS1_PRF_GOST12_256 (SSL_MD_GOST12_256_IDX << TLS1_PRF_DGST_SHIFT) | |
311 | # define TLS1_PRF_GOST12_512 (SSL_MD_GOST12_512_IDX << TLS1_PRF_DGST_SHIFT) | |
312 | # define TLS1_PRF (SSL_MD_MD5_SHA1_IDX << TLS1_PRF_DGST_SHIFT) | |
313 | ||
314 | /* | |
315 | * Stream MAC for GOST ciphersuites from cryptopro draft (currently this also | |
316 | * goes into algorithm2) | |
317 | */ | |
318 | # define TLS1_STREAM_MAC 0x10000 | |
319 | /* | |
320 | * TLSTREE cipher/mac key derivation from draft-smyshlyaev-tls12-gost-suites | |
321 | * (currently this also goes into algorithm2) | |
322 | */ | |
323 | # define TLS1_TLSTREE 0x20000 | |
324 | ||
325 | # define SSL_STRONG_MASK 0x0000001FU | |
326 | # define SSL_DEFAULT_MASK 0X00000020U | |
327 | ||
328 | # define SSL_STRONG_NONE 0x00000001U | |
329 | # define SSL_LOW 0x00000002U | |
330 | # define SSL_MEDIUM 0x00000004U | |
331 | # define SSL_HIGH 0x00000008U | |
332 | # define SSL_FIPS 0x00000010U | |
333 | # define SSL_NOT_DEFAULT 0x00000020U | |
334 | ||
335 | /* we have used 0000003f - 26 bits left to go */ | |
336 | ||
337 | /* Flag used on OpenSSL ciphersuite ids to indicate they are for SSLv3+ */ | |
338 | # define SSL3_CK_CIPHERSUITE_FLAG 0x03000000 | |
339 | ||
340 | /* Check if an SSL structure is using DTLS */ | |
341 | # define SSL_IS_DTLS(s) (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) | |
342 | ||
343 | /* Check if we are using TLSv1.3 */ | |
344 | # define SSL_IS_TLS13(s) (!SSL_IS_DTLS(s) \ | |
345 | && (s)->method->version >= TLS1_3_VERSION \ | |
346 | && (s)->method->version != TLS_ANY_VERSION) | |
347 | ||
348 | # define SSL_TREAT_AS_TLS13(s) \ | |
349 | (SSL_IS_TLS13(s) || (s)->early_data_state == SSL_EARLY_DATA_CONNECTING \ | |
350 | || (s)->early_data_state == SSL_EARLY_DATA_CONNECT_RETRY \ | |
351 | || (s)->early_data_state == SSL_EARLY_DATA_WRITING \ | |
352 | || (s)->early_data_state == SSL_EARLY_DATA_WRITE_RETRY \ | |
353 | || (s)->hello_retry_request == SSL_HRR_PENDING) | |
354 | ||
355 | # define SSL_IS_FIRST_HANDSHAKE(S) ((s)->s3.tmp.finish_md_len == 0 \ | |
356 | || (s)->s3.tmp.peer_finish_md_len == 0) | |
357 | ||
358 | /* See if we need explicit IV */ | |
359 | # define SSL_USE_EXPLICIT_IV(s) \ | |
360 | (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_EXPLICIT_IV) | |
361 | /* | |
362 | * See if we use signature algorithms extension and signature algorithm | |
363 | * before signatures. | |
364 | */ | |
365 | # define SSL_USE_SIGALGS(s) \ | |
366 | (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_SIGALGS) | |
367 | /* | |
368 | * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may | |
369 | * apply to others in future. | |
370 | */ | |
371 | # define SSL_USE_TLS1_2_CIPHERS(s) \ | |
372 | (s->method->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS) | |
373 | /* | |
374 | * Determine if a client can use TLS 1.2 ciphersuites: can't rely on method | |
375 | * flags because it may not be set to correct version yet. | |
376 | */ | |
377 | # define SSL_CLIENT_USE_TLS1_2_CIPHERS(s) \ | |
378 | ((!SSL_IS_DTLS(s) && s->client_version >= TLS1_2_VERSION) || \ | |
379 | (SSL_IS_DTLS(s) && DTLS_VERSION_GE(s->client_version, DTLS1_2_VERSION))) | |
380 | /* | |
381 | * Determine if a client should send signature algorithms extension: | |
382 | * as with TLS1.2 cipher we can't rely on method flags. | |
383 | */ | |
384 | # define SSL_CLIENT_USE_SIGALGS(s) \ | |
385 | SSL_CLIENT_USE_TLS1_2_CIPHERS(s) | |
386 | ||
387 | # define IS_MAX_FRAGMENT_LENGTH_EXT_VALID(value) \ | |
388 | (((value) >= TLSEXT_max_fragment_length_512) && \ | |
389 | ((value) <= TLSEXT_max_fragment_length_4096)) | |
390 | # define USE_MAX_FRAGMENT_LENGTH_EXT(session) \ | |
391 | IS_MAX_FRAGMENT_LENGTH_EXT_VALID(session->ext.max_fragment_len_mode) | |
392 | # define GET_MAX_FRAGMENT_LENGTH(session) \ | |
393 | (512U << (session->ext.max_fragment_len_mode - 1)) | |
394 | ||
395 | # define SSL_READ_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_READ) | |
396 | # define SSL_WRITE_ETM(s) (s->s3.flags & TLS1_FLAGS_ENCRYPT_THEN_MAC_WRITE) | |
397 | ||
398 | /* Mostly for SSLv3 */ | |
399 | # define SSL_PKEY_RSA 0 | |
400 | # define SSL_PKEY_RSA_PSS_SIGN 1 | |
401 | # define SSL_PKEY_DSA_SIGN 2 | |
402 | # define SSL_PKEY_ECC 3 | |
403 | # define SSL_PKEY_GOST01 4 | |
404 | # define SSL_PKEY_GOST12_256 5 | |
405 | # define SSL_PKEY_GOST12_512 6 | |
406 | # define SSL_PKEY_ED25519 7 | |
407 | # define SSL_PKEY_ED448 8 | |
408 | # define SSL_PKEY_NUM 9 | |
409 | ||
410 | # define SSL_ENC_DES_IDX 0 | |
411 | # define SSL_ENC_3DES_IDX 1 | |
412 | # define SSL_ENC_RC4_IDX 2 | |
413 | # define SSL_ENC_RC2_IDX 3 | |
414 | # define SSL_ENC_IDEA_IDX 4 | |
415 | # define SSL_ENC_NULL_IDX 5 | |
416 | # define SSL_ENC_AES128_IDX 6 | |
417 | # define SSL_ENC_AES256_IDX 7 | |
418 | # define SSL_ENC_CAMELLIA128_IDX 8 | |
419 | # define SSL_ENC_CAMELLIA256_IDX 9 | |
420 | # define SSL_ENC_GOST89_IDX 10 | |
421 | # define SSL_ENC_SEED_IDX 11 | |
422 | # define SSL_ENC_AES128GCM_IDX 12 | |
423 | # define SSL_ENC_AES256GCM_IDX 13 | |
424 | # define SSL_ENC_AES128CCM_IDX 14 | |
425 | # define SSL_ENC_AES256CCM_IDX 15 | |
426 | # define SSL_ENC_AES128CCM8_IDX 16 | |
427 | # define SSL_ENC_AES256CCM8_IDX 17 | |
428 | # define SSL_ENC_GOST8912_IDX 18 | |
429 | # define SSL_ENC_CHACHA_IDX 19 | |
430 | # define SSL_ENC_ARIA128GCM_IDX 20 | |
431 | # define SSL_ENC_ARIA256GCM_IDX 21 | |
432 | # define SSL_ENC_MAGMA_IDX 22 | |
433 | # define SSL_ENC_KUZNYECHIK_IDX 23 | |
434 | # define SSL_ENC_NUM_IDX 24 | |
435 | ||
436 | /*- | |
437 | * SSL_kRSA <- RSA_ENC | |
438 | * SSL_kDH <- DH_ENC & (RSA_ENC | RSA_SIGN | DSA_SIGN) | |
439 | * SSL_kDHE <- RSA_ENC | RSA_SIGN | DSA_SIGN | |
440 | * SSL_aRSA <- RSA_ENC | RSA_SIGN | |
441 | * SSL_aDSS <- DSA_SIGN | |
442 | */ | |
443 | ||
444 | /*- | |
445 | #define CERT_INVALID 0 | |
446 | #define CERT_PUBLIC_KEY 1 | |
447 | #define CERT_PRIVATE_KEY 2 | |
448 | */ | |
449 | ||
450 | /* Post-Handshake Authentication state */ | |
451 | typedef enum { | |
452 | SSL_PHA_NONE = 0, | |
453 | SSL_PHA_EXT_SENT, /* client-side only: extension sent */ | |
454 | SSL_PHA_EXT_RECEIVED, /* server-side only: extension received */ | |
455 | SSL_PHA_REQUEST_PENDING, /* server-side only: request pending */ | |
456 | SSL_PHA_REQUESTED /* request received by client, or sent by server */ | |
457 | } SSL_PHA_STATE; | |
458 | ||
459 | /* CipherSuite length. SSLv3 and all TLS versions. */ | |
460 | # define TLS_CIPHER_LEN 2 | |
461 | /* used to hold info on the particular ciphers used */ | |
462 | struct ssl_cipher_st { | |
463 | uint32_t valid; | |
464 | const char *name; /* text name */ | |
465 | const char *stdname; /* RFC name */ | |
466 | uint32_t id; /* id, 4 bytes, first is version */ | |
467 | /* | |
468 | * changed in 1.0.0: these four used to be portions of a single value | |
469 | * 'algorithms' | |
470 | */ | |
471 | uint32_t algorithm_mkey; /* key exchange algorithm */ | |
472 | uint32_t algorithm_auth; /* server authentication */ | |
473 | uint32_t algorithm_enc; /* symmetric encryption */ | |
474 | uint32_t algorithm_mac; /* symmetric authentication */ | |
475 | int min_tls; /* minimum SSL/TLS protocol version */ | |
476 | int max_tls; /* maximum SSL/TLS protocol version */ | |
477 | int min_dtls; /* minimum DTLS protocol version */ | |
478 | int max_dtls; /* maximum DTLS protocol version */ | |
479 | uint32_t algo_strength; /* strength and export flags */ | |
480 | uint32_t algorithm2; /* Extra flags */ | |
481 | int32_t strength_bits; /* Number of bits really used */ | |
482 | uint32_t alg_bits; /* Number of bits for algorithm */ | |
483 | }; | |
484 | ||
485 | /* Used to hold SSL/TLS functions */ | |
486 | struct ssl_method_st { | |
487 | int version; | |
488 | unsigned flags; | |
489 | unsigned long mask; | |
490 | int (*ssl_new) (SSL *s); | |
491 | int (*ssl_clear) (SSL *s); | |
492 | void (*ssl_free) (SSL *s); | |
493 | int (*ssl_accept) (SSL *s); | |
494 | int (*ssl_connect) (SSL *s); | |
495 | int (*ssl_read) (SSL *s, void *buf, size_t len, size_t *readbytes); | |
496 | int (*ssl_peek) (SSL *s, void *buf, size_t len, size_t *readbytes); | |
497 | int (*ssl_write) (SSL *s, const void *buf, size_t len, size_t *written); | |
498 | int (*ssl_shutdown) (SSL *s); | |
499 | int (*ssl_renegotiate) (SSL *s); | |
500 | int (*ssl_renegotiate_check) (SSL *s, int); | |
501 | int (*ssl_read_bytes) (SSL *s, int type, int *recvd_type, | |
502 | unsigned char *buf, size_t len, int peek, | |
503 | size_t *readbytes); | |
504 | int (*ssl_write_bytes) (SSL *s, int type, const void *buf_, size_t len, | |
505 | size_t *written); | |
506 | int (*ssl_dispatch_alert) (SSL *s); | |
507 | long (*ssl_ctrl) (SSL *s, int cmd, long larg, void *parg); | |
508 | long (*ssl_ctx_ctrl) (SSL_CTX *ctx, int cmd, long larg, void *parg); | |
509 | const SSL_CIPHER *(*get_cipher_by_char) (const unsigned char *ptr); | |
510 | int (*put_cipher_by_char) (const SSL_CIPHER *cipher, WPACKET *pkt, | |
511 | size_t *len); | |
512 | size_t (*ssl_pending) (const SSL *s); | |
513 | int (*num_ciphers) (void); | |
514 | const SSL_CIPHER *(*get_cipher) (unsigned ncipher); | |
515 | long (*get_timeout) (void); | |
516 | const struct ssl3_enc_method *ssl3_enc; /* Extra SSLv3/TLS stuff */ | |
517 | int (*ssl_version) (void); | |
518 | long (*ssl_callback_ctrl) (SSL *s, int cb_id, void (*fp) (void)); | |
519 | long (*ssl_ctx_callback_ctrl) (SSL_CTX *s, int cb_id, void (*fp) (void)); | |
520 | }; | |
521 | ||
522 | /* | |
523 | * Matches the length of PSK_MAX_PSK_LEN. We keep it the same value for | |
524 | * consistency, even in the event of OPENSSL_NO_PSK being defined. | |
525 | */ | |
526 | # define TLS13_MAX_RESUMPTION_PSK_LENGTH 256 | |
527 | ||
528 | /*- | |
529 | * Lets make this into an ASN.1 type structure as follows | |
530 | * SSL_SESSION_ID ::= SEQUENCE { | |
531 | * version INTEGER, -- structure version number | |
532 | * SSLversion INTEGER, -- SSL version number | |
533 | * Cipher OCTET STRING, -- the 3 byte cipher ID | |
534 | * Session_ID OCTET STRING, -- the Session ID | |
535 | * Master_key OCTET STRING, -- the master key | |
536 | * Key_Arg [ 0 ] IMPLICIT OCTET STRING, -- the optional Key argument | |
537 | * Time [ 1 ] EXPLICIT INTEGER, -- optional Start Time | |
538 | * Timeout [ 2 ] EXPLICIT INTEGER, -- optional Timeout ins seconds | |
539 | * Peer [ 3 ] EXPLICIT X509, -- optional Peer Certificate | |
540 | * Session_ID_context [ 4 ] EXPLICIT OCTET STRING, -- the Session ID context | |
541 | * Verify_result [ 5 ] EXPLICIT INTEGER, -- X509_V_... code for `Peer' | |
542 | * HostName [ 6 ] EXPLICIT OCTET STRING, -- optional HostName from servername TLS extension | |
543 | * PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint | |
544 | * PSK_identity [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity | |
545 | * Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket | |
546 | * Ticket [10] EXPLICIT OCTET STRING, -- session ticket (clients only) | |
547 | * Compression_meth [11] EXPLICIT OCTET STRING, -- optional compression method | |
548 | * SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username | |
549 | * flags [ 13 ] EXPLICIT INTEGER -- optional flags | |
550 | * } | |
551 | * Look in ssl/ssl_asn1.c for more details | |
552 | * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-). | |
553 | */ | |
554 | struct ssl_session_st { | |
555 | int ssl_version; /* what ssl version session info is being kept | |
556 | * in here? */ | |
557 | size_t master_key_length; | |
558 | ||
559 | /* TLSv1.3 early_secret used for external PSKs */ | |
560 | unsigned char early_secret[EVP_MAX_MD_SIZE]; | |
561 | /* | |
562 | * For <=TLS1.2 this is the master_key. For TLS1.3 this is the resumption | |
563 | * PSK | |
564 | */ | |
565 | unsigned char master_key[TLS13_MAX_RESUMPTION_PSK_LENGTH]; | |
566 | /* session_id - valid? */ | |
567 | size_t session_id_length; | |
568 | unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH]; | |
569 | /* | |
570 | * this is used to determine whether the session is being reused in the | |
571 | * appropriate context. It is up to the application to set this, via | |
572 | * SSL_new | |
573 | */ | |
574 | size_t sid_ctx_length; | |
575 | unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; | |
576 | # ifndef OPENSSL_NO_PSK | |
577 | char *psk_identity_hint; | |
578 | char *psk_identity; | |
579 | # endif | |
580 | /* | |
581 | * Used to indicate that session resumption is not allowed. Applications | |
582 | * can also set this bit for a new session via not_resumable_session_cb | |
583 | * to disable session caching and tickets. | |
584 | */ | |
585 | int not_resumable; | |
586 | /* This is the cert and type for the other end. */ | |
587 | X509 *peer; | |
588 | int peer_type; | |
589 | /* Certificate chain peer sent. */ | |
590 | STACK_OF(X509) *peer_chain; | |
591 | /* | |
592 | * when app_verify_callback accepts a session where the peer's | |
593 | * certificate is not ok, we must remember the error for session reuse: | |
594 | */ | |
595 | long verify_result; /* only for servers */ | |
596 | CRYPTO_REF_COUNT references; | |
597 | long timeout; | |
598 | long time; | |
599 | unsigned int compress_meth; /* Need to lookup the method */ | |
600 | const SSL_CIPHER *cipher; | |
601 | unsigned long cipher_id; /* when ASN.1 loaded, this needs to be used to | |
602 | * load the 'cipher' structure */ | |
603 | CRYPTO_EX_DATA ex_data; /* application specific data */ | |
604 | /* | |
605 | * These are used to make removal of session-ids more efficient and to | |
606 | * implement a maximum cache size. | |
607 | */ | |
608 | struct ssl_session_st *prev, *next; | |
609 | ||
610 | struct { | |
611 | char *hostname; | |
612 | /* RFC4507 info */ | |
613 | unsigned char *tick; /* Session ticket */ | |
614 | size_t ticklen; /* Session ticket length */ | |
615 | /* Session lifetime hint in seconds */ | |
616 | unsigned long tick_lifetime_hint; | |
617 | uint32_t tick_age_add; | |
618 | /* Max number of bytes that can be sent as early data */ | |
619 | uint32_t max_early_data; | |
620 | /* The ALPN protocol selected for this session */ | |
621 | unsigned char *alpn_selected; | |
622 | size_t alpn_selected_len; | |
623 | /* | |
624 | * Maximum Fragment Length as per RFC 4366. | |
625 | * If this value does not contain RFC 4366 allowed values (1-4) then | |
626 | * either the Maximum Fragment Length Negotiation failed or was not | |
627 | * performed at all. | |
628 | */ | |
629 | uint8_t max_fragment_len_mode; | |
630 | } ext; | |
631 | # ifndef OPENSSL_NO_SRP | |
632 | char *srp_username; | |
633 | # endif | |
634 | unsigned char *ticket_appdata; | |
635 | size_t ticket_appdata_len; | |
636 | uint32_t flags; | |
637 | CRYPTO_RWLOCK *lock; | |
638 | }; | |
639 | ||
640 | /* Extended master secret support */ | |
641 | # define SSL_SESS_FLAG_EXTMS 0x1 | |
642 | ||
643 | # ifndef OPENSSL_NO_SRP | |
644 | ||
645 | typedef struct srp_ctx_st { | |
646 | /* param for all the callbacks */ | |
647 | void *SRP_cb_arg; | |
648 | /* set client Hello login callback */ | |
649 | int (*TLS_ext_srp_username_callback) (SSL *, int *, void *); | |
650 | /* set SRP N/g param callback for verification */ | |
651 | int (*SRP_verify_param_callback) (SSL *, void *); | |
652 | /* set SRP client passwd callback */ | |
653 | char *(*SRP_give_srp_client_pwd_callback) (SSL *, void *); | |
654 | char *login; | |
655 | BIGNUM *N, *g, *s, *B, *A; | |
656 | BIGNUM *a, *b, *v; | |
657 | char *info; | |
658 | int strength; | |
659 | unsigned long srp_Mask; | |
660 | } SRP_CTX; | |
661 | ||
662 | # endif | |
663 | ||
664 | typedef enum { | |
665 | SSL_EARLY_DATA_NONE = 0, | |
666 | SSL_EARLY_DATA_CONNECT_RETRY, | |
667 | SSL_EARLY_DATA_CONNECTING, | |
668 | SSL_EARLY_DATA_WRITE_RETRY, | |
669 | SSL_EARLY_DATA_WRITING, | |
670 | SSL_EARLY_DATA_WRITE_FLUSH, | |
671 | SSL_EARLY_DATA_UNAUTH_WRITING, | |
672 | SSL_EARLY_DATA_FINISHED_WRITING, | |
673 | SSL_EARLY_DATA_ACCEPT_RETRY, | |
674 | SSL_EARLY_DATA_ACCEPTING, | |
675 | SSL_EARLY_DATA_READ_RETRY, | |
676 | SSL_EARLY_DATA_READING, | |
677 | SSL_EARLY_DATA_FINISHED_READING | |
678 | } SSL_EARLY_DATA_STATE; | |
679 | ||
680 | /* | |
681 | * We check that the amount of unreadable early data doesn't exceed | |
682 | * max_early_data. max_early_data is given in plaintext bytes. However if it is | |
683 | * unreadable then we only know the number of ciphertext bytes. We also don't | |
684 | * know how much the overhead should be because it depends on the ciphersuite. | |
685 | * We make a small allowance. We assume 5 records of actual data plus the end | |
686 | * of early data alert record. Each record has a tag and a content type byte. | |
687 | * The longest tag length we know of is EVP_GCM_TLS_TAG_LEN. We don't count the | |
688 | * content of the alert record either which is 2 bytes. | |
689 | */ | |
690 | # define EARLY_DATA_CIPHERTEXT_OVERHEAD ((6 * (EVP_GCM_TLS_TAG_LEN + 1)) + 2) | |
691 | ||
692 | /* | |
693 | * The allowance we have between the client's calculated ticket age and our own. | |
694 | * We allow for 10 seconds (units are in ms). If a ticket is presented and the | |
695 | * client's age calculation is different by more than this than our own then we | |
696 | * do not allow that ticket for early_data. | |
697 | */ | |
698 | # define TICKET_AGE_ALLOWANCE (10 * 1000) | |
699 | ||
700 | #define MAX_COMPRESSIONS_SIZE 255 | |
701 | ||
702 | struct ssl_comp_st { | |
703 | int id; | |
704 | const char *name; | |
705 | COMP_METHOD *method; | |
706 | }; | |
707 | ||
708 | typedef struct raw_extension_st { | |
709 | /* Raw packet data for the extension */ | |
710 | PACKET data; | |
711 | /* Set to 1 if the extension is present or 0 otherwise */ | |
712 | int present; | |
713 | /* Set to 1 if we have already parsed the extension or 0 otherwise */ | |
714 | int parsed; | |
715 | /* The type of this extension, i.e. a TLSEXT_TYPE_* value */ | |
716 | unsigned int type; | |
717 | /* Track what order extensions are received in (0-based). */ | |
718 | size_t received_order; | |
719 | } RAW_EXTENSION; | |
720 | ||
721 | typedef struct { | |
722 | unsigned int isv2; | |
723 | unsigned int legacy_version; | |
724 | unsigned char random[SSL3_RANDOM_SIZE]; | |
725 | size_t session_id_len; | |
726 | unsigned char session_id[SSL_MAX_SSL_SESSION_ID_LENGTH]; | |
727 | size_t dtls_cookie_len; | |
728 | unsigned char dtls_cookie[DTLS1_COOKIE_LENGTH]; | |
729 | PACKET ciphersuites; | |
730 | size_t compressions_len; | |
731 | unsigned char compressions[MAX_COMPRESSIONS_SIZE]; | |
732 | PACKET extensions; | |
733 | size_t pre_proc_exts_len; | |
734 | RAW_EXTENSION *pre_proc_exts; | |
735 | } CLIENTHELLO_MSG; | |
736 | ||
737 | /* | |
738 | * Extension index values NOTE: Any updates to these defines should be mirrored | |
739 | * with equivalent updates to ext_defs in extensions.c | |
740 | */ | |
741 | typedef enum tlsext_index_en { | |
742 | TLSEXT_IDX_renegotiate, | |
743 | TLSEXT_IDX_server_name, | |
744 | TLSEXT_IDX_max_fragment_length, | |
745 | TLSEXT_IDX_srp, | |
746 | TLSEXT_IDX_ec_point_formats, | |
747 | TLSEXT_IDX_supported_groups, | |
748 | TLSEXT_IDX_session_ticket, | |
749 | TLSEXT_IDX_status_request, | |
750 | TLSEXT_IDX_next_proto_neg, | |
751 | TLSEXT_IDX_application_layer_protocol_negotiation, | |
752 | TLSEXT_IDX_use_srtp, | |
753 | TLSEXT_IDX_encrypt_then_mac, | |
754 | TLSEXT_IDX_signed_certificate_timestamp, | |
755 | TLSEXT_IDX_extended_master_secret, | |
756 | TLSEXT_IDX_signature_algorithms_cert, | |
757 | TLSEXT_IDX_post_handshake_auth, | |
758 | TLSEXT_IDX_signature_algorithms, | |
759 | TLSEXT_IDX_supported_versions, | |
760 | TLSEXT_IDX_psk_kex_modes, | |
761 | TLSEXT_IDX_key_share, | |
762 | TLSEXT_IDX_cookie, | |
763 | TLSEXT_IDX_cryptopro_bug, | |
764 | TLSEXT_IDX_early_data, | |
765 | TLSEXT_IDX_certificate_authorities, | |
766 | TLSEXT_IDX_padding, | |
767 | TLSEXT_IDX_psk, | |
768 | /* Dummy index - must always be the last entry */ | |
769 | TLSEXT_IDX_num_builtins | |
770 | } TLSEXT_INDEX; | |
771 | ||
772 | DEFINE_LHASH_OF(SSL_SESSION); | |
773 | /* Needed in ssl_cert.c */ | |
774 | DEFINE_LHASH_OF(X509_NAME); | |
775 | ||
776 | # define TLSEXT_KEYNAME_LENGTH 16 | |
777 | # define TLSEXT_TICK_KEY_LENGTH 32 | |
778 | ||
779 | typedef struct ssl_ctx_ext_secure_st { | |
780 | unsigned char tick_hmac_key[TLSEXT_TICK_KEY_LENGTH]; | |
781 | unsigned char tick_aes_key[TLSEXT_TICK_KEY_LENGTH]; | |
782 | } SSL_CTX_EXT_SECURE; | |
783 | ||
784 | /* | |
785 | * Helper function for HMAC | |
786 | * The structure should be considered opaque, it will change once the low | |
787 | * level deprecated calls are removed. At that point it can be replaced | |
788 | * by EVP_MAC_CTX and most of the functions converted to macros or inlined | |
789 | * directly. | |
790 | */ | |
791 | typedef struct ssl_hmac_st { | |
792 | EVP_MAC_CTX *ctx; | |
793 | # ifndef OPENSSL_NO_DEPRECATED_3_0 | |
794 | HMAC_CTX *old_ctx; | |
795 | # endif | |
796 | } SSL_HMAC; | |
797 | ||
798 | SSL_HMAC *ssl_hmac_new(const SSL_CTX *ctx); | |
799 | void ssl_hmac_free(SSL_HMAC *ctx); | |
800 | # ifndef OPENSSL_NO_DEPRECATED_3_0 | |
801 | HMAC_CTX *ssl_hmac_get0_HMAC_CTX(SSL_HMAC *ctx); | |
802 | # endif | |
803 | EVP_MAC_CTX *ssl_hmac_get0_EVP_MAC_CTX(SSL_HMAC *ctx); | |
804 | int ssl_hmac_init(SSL_HMAC *ctx, void *key, size_t len, char *md); | |
805 | int ssl_hmac_update(SSL_HMAC *ctx, const unsigned char *data, size_t len); | |
806 | int ssl_hmac_final(SSL_HMAC *ctx, unsigned char *md, size_t *len, | |
807 | size_t max_size); | |
808 | size_t ssl_hmac_size(const SSL_HMAC *ctx); | |
809 | ||
810 | struct ssl_ctx_st { | |
811 | OPENSSL_CTX *libctx; | |
812 | ||
813 | const SSL_METHOD *method; | |
814 | STACK_OF(SSL_CIPHER) *cipher_list; | |
815 | /* same as above but sorted for lookup */ | |
816 | STACK_OF(SSL_CIPHER) *cipher_list_by_id; | |
817 | /* TLSv1.3 specific ciphersuites */ | |
818 | STACK_OF(SSL_CIPHER) *tls13_ciphersuites; | |
819 | struct x509_store_st /* X509_STORE */ *cert_store; | |
820 | LHASH_OF(SSL_SESSION) *sessions; | |
821 | /* | |
822 | * Most session-ids that will be cached, default is | |
823 | * SSL_SESSION_CACHE_MAX_SIZE_DEFAULT. 0 is unlimited. | |
824 | */ | |
825 | size_t session_cache_size; | |
826 | struct ssl_session_st *session_cache_head; | |
827 | struct ssl_session_st *session_cache_tail; | |
828 | /* | |
829 | * This can have one of 2 values, ored together, SSL_SESS_CACHE_CLIENT, | |
830 | * SSL_SESS_CACHE_SERVER, Default is SSL_SESSION_CACHE_SERVER, which | |
831 | * means only SSL_accept will cache SSL_SESSIONS. | |
832 | */ | |
833 | uint32_t session_cache_mode; | |
834 | /* | |
835 | * If timeout is not 0, it is the default timeout value set when | |
836 | * SSL_new() is called. This has been put in to make life easier to set | |
837 | * things up | |
838 | */ | |
839 | long session_timeout; | |
840 | /* | |
841 | * If this callback is not null, it will be called each time a session id | |
842 | * is added to the cache. If this function returns 1, it means that the | |
843 | * callback will do a SSL_SESSION_free() when it has finished using it. | |
844 | * Otherwise, on 0, it means the callback has finished with it. If | |
845 | * remove_session_cb is not null, it will be called when a session-id is | |
846 | * removed from the cache. After the call, OpenSSL will | |
847 | * SSL_SESSION_free() it. | |
848 | */ | |
849 | int (*new_session_cb) (struct ssl_st *ssl, SSL_SESSION *sess); | |
850 | void (*remove_session_cb) (struct ssl_ctx_st *ctx, SSL_SESSION *sess); | |
851 | SSL_SESSION *(*get_session_cb) (struct ssl_st *ssl, | |
852 | const unsigned char *data, int len, | |
853 | int *copy); | |
854 | struct { | |
855 | TSAN_QUALIFIER int sess_connect; /* SSL new conn - started */ | |
856 | TSAN_QUALIFIER int sess_connect_renegotiate; /* SSL reneg - requested */ | |
857 | TSAN_QUALIFIER int sess_connect_good; /* SSL new conne/reneg - finished */ | |
858 | TSAN_QUALIFIER int sess_accept; /* SSL new accept - started */ | |
859 | TSAN_QUALIFIER int sess_accept_renegotiate; /* SSL reneg - requested */ | |
860 | TSAN_QUALIFIER int sess_accept_good; /* SSL accept/reneg - finished */ | |
861 | TSAN_QUALIFIER int sess_miss; /* session lookup misses */ | |
862 | TSAN_QUALIFIER int sess_timeout; /* reuse attempt on timeouted session */ | |
863 | TSAN_QUALIFIER int sess_cache_full; /* session removed due to full cache */ | |
864 | TSAN_QUALIFIER int sess_hit; /* session reuse actually done */ | |
865 | TSAN_QUALIFIER int sess_cb_hit; /* session-id that was not in | |
866 | * the cache was passed back via | |
867 | * the callback. This indicates | |
868 | * that the application is | |
869 | * supplying session-id's from | |
870 | * other processes - spooky | |
871 | * :-) */ | |
872 | } stats; | |
873 | ||
874 | CRYPTO_REF_COUNT references; | |
875 | ||
876 | /* if defined, these override the X509_verify_cert() calls */ | |
877 | int (*app_verify_callback) (X509_STORE_CTX *, void *); | |
878 | void *app_verify_arg; | |
879 | /* | |
880 | * before OpenSSL 0.9.7, 'app_verify_arg' was ignored | |
881 | * ('app_verify_callback' was called with just one argument) | |
882 | */ | |
883 | ||
884 | /* Default password callback. */ | |
885 | pem_password_cb *default_passwd_callback; | |
886 | ||
887 | /* Default password callback user data. */ | |
888 | void *default_passwd_callback_userdata; | |
889 | ||
890 | /* get client cert callback */ | |
891 | int (*client_cert_cb) (SSL *ssl, X509 **x509, EVP_PKEY **pkey); | |
892 | ||
893 | /* cookie generate callback */ | |
894 | int (*app_gen_cookie_cb) (SSL *ssl, unsigned char *cookie, | |
895 | unsigned int *cookie_len); | |
896 | ||
897 | /* verify cookie callback */ | |
898 | int (*app_verify_cookie_cb) (SSL *ssl, const unsigned char *cookie, | |
899 | unsigned int cookie_len); | |
900 | ||
901 | /* TLS1.3 app-controlled cookie generate callback */ | |
902 | int (*gen_stateless_cookie_cb) (SSL *ssl, unsigned char *cookie, | |
903 | size_t *cookie_len); | |
904 | ||
905 | /* TLS1.3 verify app-controlled cookie callback */ | |
906 | int (*verify_stateless_cookie_cb) (SSL *ssl, const unsigned char *cookie, | |
907 | size_t cookie_len); | |
908 | ||
909 | CRYPTO_EX_DATA ex_data; | |
910 | ||
911 | const EVP_MD *md5; /* For SSLv3/TLSv1 'ssl3-md5' */ | |
912 | const EVP_MD *sha1; /* For SSLv3/TLSv1 'ssl3-sha1' */ | |
913 | ||
914 | STACK_OF(X509) *extra_certs; | |
915 | STACK_OF(SSL_COMP) *comp_methods; /* stack of SSL_COMP, SSLv3/TLSv1 */ | |
916 | ||
917 | /* Default values used when no per-SSL value is defined follow */ | |
918 | ||
919 | /* used if SSL's info_callback is NULL */ | |
920 | void (*info_callback) (const SSL *ssl, int type, int val); | |
921 | ||
922 | /* | |
923 | * What we put in certificate_authorities extension for TLS 1.3 | |
924 | * (ClientHello and CertificateRequest) or just client cert requests for | |
925 | * earlier versions. If client_ca_names is populated then it is only used | |
926 | * for client cert requests, and in preference to ca_names. | |
927 | */ | |
928 | STACK_OF(X509_NAME) *ca_names; | |
929 | STACK_OF(X509_NAME) *client_ca_names; | |
930 | ||
931 | /* | |
932 | * Default values to use in SSL structures follow (these are copied by | |
933 | * SSL_new) | |
934 | */ | |
935 | ||
936 | uint32_t options; | |
937 | uint32_t mode; | |
938 | int min_proto_version; | |
939 | int max_proto_version; | |
940 | size_t max_cert_list; | |
941 | ||
942 | struct cert_st /* CERT */ *cert; | |
943 | int read_ahead; | |
944 | ||
945 | /* callback that allows applications to peek at protocol messages */ | |
946 | void (*msg_callback) (int write_p, int version, int content_type, | |
947 | const void *buf, size_t len, SSL *ssl, void *arg); | |
948 | void *msg_callback_arg; | |
949 | ||
950 | uint32_t verify_mode; | |
951 | size_t sid_ctx_length; | |
952 | unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; | |
953 | /* called 'verify_callback' in the SSL */ | |
954 | int (*default_verify_callback) (int ok, X509_STORE_CTX *ctx); | |
955 | ||
956 | /* Default generate session ID callback. */ | |
957 | GEN_SESSION_CB generate_session_id; | |
958 | ||
959 | X509_VERIFY_PARAM *param; | |
960 | ||
961 | int quiet_shutdown; | |
962 | ||
963 | # ifndef OPENSSL_NO_CT | |
964 | CTLOG_STORE *ctlog_store; /* CT Log Store */ | |
965 | /* | |
966 | * Validates that the SCTs (Signed Certificate Timestamps) are sufficient. | |
967 | * If they are not, the connection should be aborted. | |
968 | */ | |
969 | ssl_ct_validation_cb ct_validation_callback; | |
970 | void *ct_validation_callback_arg; | |
971 | # endif | |
972 | ||
973 | /* | |
974 | * If we're using more than one pipeline how should we divide the data | |
975 | * up between the pipes? | |
976 | */ | |
977 | size_t split_send_fragment; | |
978 | /* | |
979 | * Maximum amount of data to send in one fragment. actual record size can | |
980 | * be more than this due to padding and MAC overheads. | |
981 | */ | |
982 | size_t max_send_fragment; | |
983 | ||
984 | /* Up to how many pipelines should we use? If 0 then 1 is assumed */ | |
985 | size_t max_pipelines; | |
986 | ||
987 | /* The default read buffer length to use (0 means not set) */ | |
988 | size_t default_read_buf_len; | |
989 | ||
990 | # ifndef OPENSSL_NO_ENGINE | |
991 | /* | |
992 | * Engine to pass requests for client certs to | |
993 | */ | |
994 | ENGINE *client_cert_engine; | |
995 | # endif | |
996 | ||
997 | /* ClientHello callback. Mostly for extensions, but not entirely. */ | |
998 | SSL_client_hello_cb_fn client_hello_cb; | |
999 | void *client_hello_cb_arg; | |
1000 | ||
1001 | /* TLS extensions. */ | |
1002 | struct { | |
1003 | /* TLS extensions servername callback */ | |
1004 | int (*servername_cb) (SSL *, int *, void *); | |
1005 | void *servername_arg; | |
1006 | /* RFC 4507 session ticket keys */ | |
1007 | unsigned char tick_key_name[TLSEXT_KEYNAME_LENGTH]; | |
1008 | SSL_CTX_EXT_SECURE *secure; | |
1009 | # ifndef OPENSSL_NO_DEPRECATED_3_0 | |
1010 | /* Callback to support customisation of ticket key setting */ | |
1011 | int (*ticket_key_cb) (SSL *ssl, | |
1012 | unsigned char *name, unsigned char *iv, | |
1013 | EVP_CIPHER_CTX *ectx, HMAC_CTX *hctx, int enc); | |
1014 | #endif | |
1015 | int (*ticket_key_evp_cb) (SSL *ssl, | |
1016 | unsigned char *name, unsigned char *iv, | |
1017 | EVP_CIPHER_CTX *ectx, EVP_MAC_CTX *hctx, | |
1018 | int enc); | |
1019 | ||
1020 | /* certificate status request info */ | |
1021 | /* Callback for status request */ | |
1022 | int (*status_cb) (SSL *ssl, void *arg); | |
1023 | void *status_arg; | |
1024 | /* ext status type used for CSR extension (OCSP Stapling) */ | |
1025 | int status_type; | |
1026 | /* RFC 4366 Maximum Fragment Length Negotiation */ | |
1027 | uint8_t max_fragment_len_mode; | |
1028 | ||
1029 | # ifndef OPENSSL_NO_EC | |
1030 | /* EC extension values inherited by SSL structure */ | |
1031 | size_t ecpointformats_len; | |
1032 | unsigned char *ecpointformats; | |
1033 | # endif /* OPENSSL_NO_EC */ | |
1034 | ||
1035 | size_t supportedgroups_len; | |
1036 | uint16_t *supportedgroups; | |
1037 | ||
1038 | /* | |
1039 | * ALPN information (we are in the process of transitioning from NPN to | |
1040 | * ALPN.) | |
1041 | */ | |
1042 | ||
1043 | /*- | |
1044 | * For a server, this contains a callback function that allows the | |
1045 | * server to select the protocol for the connection. | |
1046 | * out: on successful return, this must point to the raw protocol | |
1047 | * name (without the length prefix). | |
1048 | * outlen: on successful return, this contains the length of |*out|. | |
1049 | * in: points to the client's list of supported protocols in | |
1050 | * wire-format. | |
1051 | * inlen: the length of |in|. | |
1052 | */ | |
1053 | int (*alpn_select_cb) (SSL *s, | |
1054 | const unsigned char **out, | |
1055 | unsigned char *outlen, | |
1056 | const unsigned char *in, | |
1057 | unsigned int inlen, void *arg); | |
1058 | void *alpn_select_cb_arg; | |
1059 | ||
1060 | /* | |
1061 | * For a client, this contains the list of supported protocols in wire | |
1062 | * format. | |
1063 | */ | |
1064 | unsigned char *alpn; | |
1065 | size_t alpn_len; | |
1066 | ||
1067 | # ifndef OPENSSL_NO_NEXTPROTONEG | |
1068 | /* Next protocol negotiation information */ | |
1069 | ||
1070 | /* | |
1071 | * For a server, this contains a callback function by which the set of | |
1072 | * advertised protocols can be provided. | |
1073 | */ | |
1074 | SSL_CTX_npn_advertised_cb_func npn_advertised_cb; | |
1075 | void *npn_advertised_cb_arg; | |
1076 | /* | |
1077 | * For a client, this contains a callback function that selects the next | |
1078 | * protocol from the list provided by the server. | |
1079 | */ | |
1080 | SSL_CTX_npn_select_cb_func npn_select_cb; | |
1081 | void *npn_select_cb_arg; | |
1082 | # endif | |
1083 | ||
1084 | unsigned char cookie_hmac_key[SHA256_DIGEST_LENGTH]; | |
1085 | } ext; | |
1086 | ||
1087 | # ifndef OPENSSL_NO_PSK | |
1088 | SSL_psk_client_cb_func psk_client_callback; | |
1089 | SSL_psk_server_cb_func psk_server_callback; | |
1090 | # endif | |
1091 | SSL_psk_find_session_cb_func psk_find_session_cb; | |
1092 | SSL_psk_use_session_cb_func psk_use_session_cb; | |
1093 | ||
1094 | # ifndef OPENSSL_NO_SRP | |
1095 | SRP_CTX srp_ctx; /* ctx for SRP authentication */ | |
1096 | # endif | |
1097 | ||
1098 | /* Shared DANE context */ | |
1099 | struct dane_ctx_st dane; | |
1100 | ||
1101 | # ifndef OPENSSL_NO_SRTP | |
1102 | /* SRTP profiles we are willing to do from RFC 5764 */ | |
1103 | STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; | |
1104 | # endif | |
1105 | /* | |
1106 | * Callback for disabling session caching and ticket support on a session | |
1107 | * basis, depending on the chosen cipher. | |
1108 | */ | |
1109 | int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure); | |
1110 | ||
1111 | CRYPTO_RWLOCK *lock; | |
1112 | ||
1113 | /* | |
1114 | * Callback for logging key material for use with debugging tools like | |
1115 | * Wireshark. The callback should log `line` followed by a newline. | |
1116 | */ | |
1117 | SSL_CTX_keylog_cb_func keylog_callback; | |
1118 | ||
1119 | /* | |
1120 | * The maximum number of bytes advertised in session tickets that can be | |
1121 | * sent as early data. | |
1122 | */ | |
1123 | uint32_t max_early_data; | |
1124 | ||
1125 | /* | |
1126 | * The maximum number of bytes of early data that a server will tolerate | |
1127 | * (which should be at least as much as max_early_data). | |
1128 | */ | |
1129 | uint32_t recv_max_early_data; | |
1130 | ||
1131 | /* TLS1.3 padding callback */ | |
1132 | size_t (*record_padding_cb)(SSL *s, int type, size_t len, void *arg); | |
1133 | void *record_padding_arg; | |
1134 | size_t block_padding; | |
1135 | ||
1136 | /* Session ticket appdata */ | |
1137 | SSL_CTX_generate_session_ticket_fn generate_ticket_cb; | |
1138 | SSL_CTX_decrypt_session_ticket_fn decrypt_ticket_cb; | |
1139 | void *ticket_cb_data; | |
1140 | ||
1141 | /* The number of TLS1.3 tickets to automatically send */ | |
1142 | size_t num_tickets; | |
1143 | ||
1144 | /* Callback to determine if early_data is acceptable or not */ | |
1145 | SSL_allow_early_data_cb_fn allow_early_data_cb; | |
1146 | void *allow_early_data_cb_data; | |
1147 | ||
1148 | /* Do we advertise Post-handshake auth support? */ | |
1149 | int pha_enabled; | |
1150 | ||
1151 | /* Callback for SSL async handling */ | |
1152 | SSL_async_callback_fn async_cb; | |
1153 | void *async_cb_arg; | |
1154 | ||
1155 | char *propq; | |
1156 | ||
1157 | const EVP_CIPHER *ssl_cipher_methods[SSL_ENC_NUM_IDX]; | |
1158 | const EVP_MD *ssl_digest_methods[SSL_MD_NUM_IDX]; | |
1159 | size_t ssl_mac_secret_size[SSL_MD_NUM_IDX]; | |
1160 | ||
1161 | /* Cache of all sigalgs we know and whether they are available or not */ | |
1162 | struct sigalg_lookup_st *sigalg_lookup_cache; | |
1163 | }; | |
1164 | ||
1165 | typedef struct cert_pkey_st CERT_PKEY; | |
1166 | ||
1167 | struct ssl_st { | |
1168 | /* | |
1169 | * protocol version (one of SSL2_VERSION, SSL3_VERSION, TLS1_VERSION, | |
1170 | * DTLS1_VERSION) | |
1171 | */ | |
1172 | int version; | |
1173 | /* SSLv3 */ | |
1174 | const SSL_METHOD *method; | |
1175 | /* | |
1176 | * There are 2 BIO's even though they are normally both the same. This | |
1177 | * is so data can be read and written to different handlers | |
1178 | */ | |
1179 | /* used by SSL_read */ | |
1180 | BIO *rbio; | |
1181 | /* used by SSL_write */ | |
1182 | BIO *wbio; | |
1183 | /* used during session-id reuse to concatenate messages */ | |
1184 | BIO *bbio; | |
1185 | /* | |
1186 | * This holds a variable that indicates what we were doing when a 0 or -1 | |
1187 | * is returned. This is needed for non-blocking IO so we know what | |
1188 | * request needs re-doing when in SSL_accept or SSL_connect | |
1189 | */ | |
1190 | int rwstate; | |
1191 | int (*handshake_func) (SSL *); | |
1192 | /* | |
1193 | * Imagine that here's a boolean member "init" that is switched as soon | |
1194 | * as SSL_set_{accept/connect}_state is called for the first time, so | |
1195 | * that "state" and "handshake_func" are properly initialized. But as | |
1196 | * handshake_func is == 0 until then, we use this test instead of an | |
1197 | * "init" member. | |
1198 | */ | |
1199 | /* are we the server side? */ | |
1200 | int server; | |
1201 | /* | |
1202 | * Generate a new session or reuse an old one. | |
1203 | * NB: For servers, the 'new' session may actually be a previously | |
1204 | * cached session or even the previous session unless | |
1205 | * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set | |
1206 | */ | |
1207 | int new_session; | |
1208 | /* don't send shutdown packets */ | |
1209 | int quiet_shutdown; | |
1210 | /* we have shut things down, 0x01 sent, 0x02 for received */ | |
1211 | int shutdown; | |
1212 | /* where we are */ | |
1213 | OSSL_STATEM statem; | |
1214 | SSL_EARLY_DATA_STATE early_data_state; | |
1215 | BUF_MEM *init_buf; /* buffer used during init */ | |
1216 | void *init_msg; /* pointer to handshake message body, set by | |
1217 | * ssl3_get_message() */ | |
1218 | size_t init_num; /* amount read/written */ | |
1219 | size_t init_off; /* amount read/written */ | |
1220 | ||
1221 | struct { | |
1222 | long flags; | |
1223 | size_t read_mac_secret_size; | |
1224 | unsigned char read_mac_secret[EVP_MAX_MD_SIZE]; | |
1225 | size_t write_mac_secret_size; | |
1226 | unsigned char write_mac_secret[EVP_MAX_MD_SIZE]; | |
1227 | unsigned char server_random[SSL3_RANDOM_SIZE]; | |
1228 | unsigned char client_random[SSL3_RANDOM_SIZE]; | |
1229 | /* flags for countermeasure against known-IV weakness */ | |
1230 | int need_empty_fragments; | |
1231 | int empty_fragment_done; | |
1232 | /* used during startup, digest all incoming/outgoing packets */ | |
1233 | BIO *handshake_buffer; | |
1234 | /* | |
1235 | * When handshake digest is determined, buffer is hashed and | |
1236 | * freed and MD_CTX for the required digest is stored here. | |
1237 | */ | |
1238 | EVP_MD_CTX *handshake_dgst; | |
1239 | /* | |
1240 | * Set whenever an expected ChangeCipherSpec message is processed. | |
1241 | * Unset when the peer's Finished message is received. | |
1242 | * Unexpected ChangeCipherSpec messages trigger a fatal alert. | |
1243 | */ | |
1244 | int change_cipher_spec; | |
1245 | int warn_alert; | |
1246 | int fatal_alert; | |
1247 | /* | |
1248 | * we allow one fatal and one warning alert to be outstanding, send close | |
1249 | * alert via the warning alert | |
1250 | */ | |
1251 | int alert_dispatch; | |
1252 | unsigned char send_alert[2]; | |
1253 | /* | |
1254 | * This flag is set when we should renegotiate ASAP, basically when there | |
1255 | * is no more data in the read or write buffers | |
1256 | */ | |
1257 | int renegotiate; | |
1258 | int total_renegotiations; | |
1259 | int num_renegotiations; | |
1260 | int in_read_app_data; | |
1261 | struct { | |
1262 | /* actually only need to be 16+20 for SSLv3 and 12 for TLS */ | |
1263 | unsigned char finish_md[EVP_MAX_MD_SIZE * 2]; | |
1264 | size_t finish_md_len; | |
1265 | unsigned char peer_finish_md[EVP_MAX_MD_SIZE * 2]; | |
1266 | size_t peer_finish_md_len; | |
1267 | size_t message_size; | |
1268 | int message_type; | |
1269 | /* used to hold the new cipher we are going to use */ | |
1270 | const SSL_CIPHER *new_cipher; | |
1271 | # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH) | |
1272 | EVP_PKEY *pkey; /* holds short lived DH/ECDH key */ | |
1273 | # endif | |
1274 | /* used for certificate requests */ | |
1275 | int cert_req; | |
1276 | /* Certificate types in certificate request message. */ | |
1277 | uint8_t *ctype; | |
1278 | size_t ctype_len; | |
1279 | /* Certificate authorities list peer sent */ | |
1280 | STACK_OF(X509_NAME) *peer_ca_names; | |
1281 | size_t key_block_length; | |
1282 | unsigned char *key_block; | |
1283 | const EVP_CIPHER *new_sym_enc; | |
1284 | const EVP_MD *new_hash; | |
1285 | int new_mac_pkey_type; | |
1286 | size_t new_mac_secret_size; | |
1287 | # ifndef OPENSSL_NO_COMP | |
1288 | const SSL_COMP *new_compression; | |
1289 | # else | |
1290 | char *new_compression; | |
1291 | # endif | |
1292 | int cert_request; | |
1293 | /* Raw values of the cipher list from a client */ | |
1294 | unsigned char *ciphers_raw; | |
1295 | size_t ciphers_rawlen; | |
1296 | /* Temporary storage for premaster secret */ | |
1297 | unsigned char *pms; | |
1298 | size_t pmslen; | |
1299 | # ifndef OPENSSL_NO_PSK | |
1300 | /* Temporary storage for PSK key */ | |
1301 | unsigned char *psk; | |
1302 | size_t psklen; | |
1303 | # endif | |
1304 | /* Signature algorithm we actually use */ | |
1305 | const struct sigalg_lookup_st *sigalg; | |
1306 | /* Pointer to certificate we use */ | |
1307 | CERT_PKEY *cert; | |
1308 | /* | |
1309 | * signature algorithms peer reports: e.g. supported signature | |
1310 | * algorithms extension for server or as part of a certificate | |
1311 | * request for client. | |
1312 | * Keep track of the algorithms for TLS and X.509 usage separately. | |
1313 | */ | |
1314 | uint16_t *peer_sigalgs; | |
1315 | uint16_t *peer_cert_sigalgs; | |
1316 | /* Size of above arrays */ | |
1317 | size_t peer_sigalgslen; | |
1318 | size_t peer_cert_sigalgslen; | |
1319 | /* Sigalg peer actually uses */ | |
1320 | const struct sigalg_lookup_st *peer_sigalg; | |
1321 | /* | |
1322 | * Set if corresponding CERT_PKEY can be used with current | |
1323 | * SSL session: e.g. appropriate curve, signature algorithms etc. | |
1324 | * If zero it can't be used at all. | |
1325 | */ | |
1326 | uint32_t valid_flags[SSL_PKEY_NUM]; | |
1327 | /* | |
1328 | * For servers the following masks are for the key and auth algorithms | |
1329 | * that are supported by the certs below. For clients they are masks of | |
1330 | * *disabled* algorithms based on the current session. | |
1331 | */ | |
1332 | uint32_t mask_k; | |
1333 | uint32_t mask_a; | |
1334 | /* | |
1335 | * The following are used by the client to see if a cipher is allowed or | |
1336 | * not. It contains the minimum and maximum version the client's using | |
1337 | * based on what it knows so far. | |
1338 | */ | |
1339 | int min_ver; | |
1340 | int max_ver; | |
1341 | } tmp; | |
1342 | ||
1343 | /* Connection binding to prevent renegotiation attacks */ | |
1344 | unsigned char previous_client_finished[EVP_MAX_MD_SIZE]; | |
1345 | size_t previous_client_finished_len; | |
1346 | unsigned char previous_server_finished[EVP_MAX_MD_SIZE]; | |
1347 | size_t previous_server_finished_len; | |
1348 | int send_connection_binding; /* TODOEKR */ | |
1349 | ||
1350 | # ifndef OPENSSL_NO_NEXTPROTONEG | |
1351 | /* | |
1352 | * Set if we saw the Next Protocol Negotiation extension from our peer. | |
1353 | */ | |
1354 | int npn_seen; | |
1355 | # endif | |
1356 | ||
1357 | /* | |
1358 | * ALPN information (we are in the process of transitioning from NPN to | |
1359 | * ALPN.) | |
1360 | */ | |
1361 | ||
1362 | /* | |
1363 | * In a server these point to the selected ALPN protocol after the | |
1364 | * ClientHello has been processed. In a client these contain the protocol | |
1365 | * that the server selected once the ServerHello has been processed. | |
1366 | */ | |
1367 | unsigned char *alpn_selected; | |
1368 | size_t alpn_selected_len; | |
1369 | /* used by the server to know what options were proposed */ | |
1370 | unsigned char *alpn_proposed; | |
1371 | size_t alpn_proposed_len; | |
1372 | /* used by the client to know if it actually sent alpn */ | |
1373 | int alpn_sent; | |
1374 | ||
1375 | # ifndef OPENSSL_NO_EC | |
1376 | /* | |
1377 | * This is set to true if we believe that this is a version of Safari | |
1378 | * running on OS X 10.6 or newer. We wish to know this because Safari on | |
1379 | * 10.8 .. 10.8.3 has broken ECDHE-ECDSA support. | |
1380 | */ | |
1381 | char is_probably_safari; | |
1382 | # endif /* !OPENSSL_NO_EC */ | |
1383 | ||
1384 | /* For clients: peer temporary key */ | |
1385 | # if !defined(OPENSSL_NO_EC) || !defined(OPENSSL_NO_DH) | |
1386 | /* The group_id for the DH/ECDH key */ | |
1387 | uint16_t group_id; | |
1388 | EVP_PKEY *peer_tmp; | |
1389 | # endif | |
1390 | ||
1391 | } s3; | |
1392 | ||
1393 | struct dtls1_state_st *d1; /* DTLSv1 variables */ | |
1394 | /* callback that allows applications to peek at protocol messages */ | |
1395 | void (*msg_callback) (int write_p, int version, int content_type, | |
1396 | const void *buf, size_t len, SSL *ssl, void *arg); | |
1397 | void *msg_callback_arg; | |
1398 | int hit; /* reusing a previous session */ | |
1399 | X509_VERIFY_PARAM *param; | |
1400 | /* Per connection DANE state */ | |
1401 | SSL_DANE dane; | |
1402 | /* crypto */ | |
1403 | STACK_OF(SSL_CIPHER) *peer_ciphers; | |
1404 | STACK_OF(SSL_CIPHER) *cipher_list; | |
1405 | STACK_OF(SSL_CIPHER) *cipher_list_by_id; | |
1406 | /* TLSv1.3 specific ciphersuites */ | |
1407 | STACK_OF(SSL_CIPHER) *tls13_ciphersuites; | |
1408 | /* | |
1409 | * These are the ones being used, the ones in SSL_SESSION are the ones to | |
1410 | * be 'copied' into these ones | |
1411 | */ | |
1412 | uint32_t mac_flags; | |
1413 | /* | |
1414 | * The TLS1.3 secrets. | |
1415 | */ | |
1416 | unsigned char early_secret[EVP_MAX_MD_SIZE]; | |
1417 | unsigned char handshake_secret[EVP_MAX_MD_SIZE]; | |
1418 | unsigned char master_secret[EVP_MAX_MD_SIZE]; | |
1419 | unsigned char resumption_master_secret[EVP_MAX_MD_SIZE]; | |
1420 | unsigned char client_finished_secret[EVP_MAX_MD_SIZE]; | |
1421 | unsigned char server_finished_secret[EVP_MAX_MD_SIZE]; | |
1422 | unsigned char server_finished_hash[EVP_MAX_MD_SIZE]; | |
1423 | unsigned char handshake_traffic_hash[EVP_MAX_MD_SIZE]; | |
1424 | unsigned char client_app_traffic_secret[EVP_MAX_MD_SIZE]; | |
1425 | unsigned char server_app_traffic_secret[EVP_MAX_MD_SIZE]; | |
1426 | unsigned char exporter_master_secret[EVP_MAX_MD_SIZE]; | |
1427 | unsigned char early_exporter_master_secret[EVP_MAX_MD_SIZE]; | |
1428 | EVP_CIPHER_CTX *enc_read_ctx; /* cryptographic state */ | |
1429 | unsigned char read_iv[EVP_MAX_IV_LENGTH]; /* TLSv1.3 static read IV */ | |
1430 | EVP_MD_CTX *read_hash; /* used for mac generation */ | |
1431 | COMP_CTX *compress; /* compression */ | |
1432 | COMP_CTX *expand; /* uncompress */ | |
1433 | EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */ | |
1434 | unsigned char write_iv[EVP_MAX_IV_LENGTH]; /* TLSv1.3 static write IV */ | |
1435 | EVP_MD_CTX *write_hash; /* used for mac generation */ | |
1436 | /* session info */ | |
1437 | /* client cert? */ | |
1438 | /* This is used to hold the server certificate used */ | |
1439 | struct cert_st /* CERT */ *cert; | |
1440 | ||
1441 | /* | |
1442 | * The hash of all messages prior to the CertificateVerify, and the length | |
1443 | * of that hash. | |
1444 | */ | |
1445 | unsigned char cert_verify_hash[EVP_MAX_MD_SIZE]; | |
1446 | size_t cert_verify_hash_len; | |
1447 | ||
1448 | /* Flag to indicate whether we should send a HelloRetryRequest or not */ | |
1449 | enum {SSL_HRR_NONE = 0, SSL_HRR_PENDING, SSL_HRR_COMPLETE} | |
1450 | hello_retry_request; | |
1451 | ||
1452 | /* | |
1453 | * the session_id_context is used to ensure sessions are only reused in | |
1454 | * the appropriate context | |
1455 | */ | |
1456 | size_t sid_ctx_length; | |
1457 | unsigned char sid_ctx[SSL_MAX_SID_CTX_LENGTH]; | |
1458 | /* This can also be in the session once a session is established */ | |
1459 | SSL_SESSION *session; | |
1460 | /* TLSv1.3 PSK session */ | |
1461 | SSL_SESSION *psksession; | |
1462 | unsigned char *psksession_id; | |
1463 | size_t psksession_id_len; | |
1464 | /* Default generate session ID callback. */ | |
1465 | GEN_SESSION_CB generate_session_id; | |
1466 | /* | |
1467 | * The temporary TLSv1.3 session id. This isn't really a session id at all | |
1468 | * but is a random value sent in the legacy session id field. | |
1469 | */ | |
1470 | unsigned char tmp_session_id[SSL_MAX_SSL_SESSION_ID_LENGTH]; | |
1471 | size_t tmp_session_id_len; | |
1472 | /* Used in SSL3 */ | |
1473 | /* | |
1474 | * 0 don't care about verify failure. | |
1475 | * 1 fail if verify fails | |
1476 | */ | |
1477 | uint32_t verify_mode; | |
1478 | /* fail if callback returns 0 */ | |
1479 | int (*verify_callback) (int ok, X509_STORE_CTX *ctx); | |
1480 | /* optional informational callback */ | |
1481 | void (*info_callback) (const SSL *ssl, int type, int val); | |
1482 | /* error bytes to be written */ | |
1483 | int error; | |
1484 | /* actual code */ | |
1485 | int error_code; | |
1486 | # ifndef OPENSSL_NO_PSK | |
1487 | SSL_psk_client_cb_func psk_client_callback; | |
1488 | SSL_psk_server_cb_func psk_server_callback; | |
1489 | # endif | |
1490 | SSL_psk_find_session_cb_func psk_find_session_cb; | |
1491 | SSL_psk_use_session_cb_func psk_use_session_cb; | |
1492 | ||
1493 | SSL_CTX *ctx; | |
1494 | /* Verified chain of peer */ | |
1495 | STACK_OF(X509) *verified_chain; | |
1496 | long verify_result; | |
1497 | /* extra application data */ | |
1498 | CRYPTO_EX_DATA ex_data; | |
1499 | /* | |
1500 | * What we put in certificate_authorities extension for TLS 1.3 | |
1501 | * (ClientHello and CertificateRequest) or just client cert requests for | |
1502 | * earlier versions. If client_ca_names is populated then it is only used | |
1503 | * for client cert requests, and in preference to ca_names. | |
1504 | */ | |
1505 | STACK_OF(X509_NAME) *ca_names; | |
1506 | STACK_OF(X509_NAME) *client_ca_names; | |
1507 | CRYPTO_REF_COUNT references; | |
1508 | /* protocol behaviour */ | |
1509 | uint32_t options; | |
1510 | /* API behaviour */ | |
1511 | uint32_t mode; | |
1512 | int min_proto_version; | |
1513 | int max_proto_version; | |
1514 | size_t max_cert_list; | |
1515 | int first_packet; | |
1516 | /* | |
1517 | * What was passed in ClientHello.legacy_version. Used for RSA pre-master | |
1518 | * secret and SSLv3/TLS (<=1.2) rollback check | |
1519 | */ | |
1520 | int client_version; | |
1521 | /* | |
1522 | * If we're using more than one pipeline how should we divide the data | |
1523 | * up between the pipes? | |
1524 | */ | |
1525 | size_t split_send_fragment; | |
1526 | /* | |
1527 | * Maximum amount of data to send in one fragment. actual record size can | |
1528 | * be more than this due to padding and MAC overheads. | |
1529 | */ | |
1530 | size_t max_send_fragment; | |
1531 | /* Up to how many pipelines should we use? If 0 then 1 is assumed */ | |
1532 | size_t max_pipelines; | |
1533 | ||
1534 | struct { | |
1535 | /* Built-in extension flags */ | |
1536 | uint8_t extflags[TLSEXT_IDX_num_builtins]; | |
1537 | /* TLS extension debug callback */ | |
1538 | void (*debug_cb)(SSL *s, int client_server, int type, | |
1539 | const unsigned char *data, int len, void *arg); | |
1540 | void *debug_arg; | |
1541 | char *hostname; | |
1542 | /* certificate status request info */ | |
1543 | /* Status type or -1 if no status type */ | |
1544 | int status_type; | |
1545 | /* Raw extension data, if seen */ | |
1546 | unsigned char *scts; | |
1547 | /* Length of raw extension data, if seen */ | |
1548 | uint16_t scts_len; | |
1549 | /* Expect OCSP CertificateStatus message */ | |
1550 | int status_expected; | |
1551 | ||
1552 | struct { | |
1553 | /* OCSP status request only */ | |
1554 | STACK_OF(OCSP_RESPID) *ids; | |
1555 | X509_EXTENSIONS *exts; | |
1556 | /* OCSP response received or to be sent */ | |
1557 | unsigned char *resp; | |
1558 | size_t resp_len; | |
1559 | } ocsp; | |
1560 | ||
1561 | /* RFC4507 session ticket expected to be received or sent */ | |
1562 | int ticket_expected; | |
1563 | /* TLS 1.3 tickets requested by the application. */ | |
1564 | int extra_tickets_expected; | |
1565 | # ifndef OPENSSL_NO_EC | |
1566 | size_t ecpointformats_len; | |
1567 | /* our list */ | |
1568 | unsigned char *ecpointformats; | |
1569 | ||
1570 | size_t peer_ecpointformats_len; | |
1571 | /* peer's list */ | |
1572 | unsigned char *peer_ecpointformats; | |
1573 | # endif /* OPENSSL_NO_EC */ | |
1574 | size_t supportedgroups_len; | |
1575 | /* our list */ | |
1576 | uint16_t *supportedgroups; | |
1577 | ||
1578 | size_t peer_supportedgroups_len; | |
1579 | /* peer's list */ | |
1580 | uint16_t *peer_supportedgroups; | |
1581 | ||
1582 | /* TLS Session Ticket extension override */ | |
1583 | TLS_SESSION_TICKET_EXT *session_ticket; | |
1584 | /* TLS Session Ticket extension callback */ | |
1585 | tls_session_ticket_ext_cb_fn session_ticket_cb; | |
1586 | void *session_ticket_cb_arg; | |
1587 | /* TLS pre-shared secret session resumption */ | |
1588 | tls_session_secret_cb_fn session_secret_cb; | |
1589 | void *session_secret_cb_arg; | |
1590 | /* | |
1591 | * For a client, this contains the list of supported protocols in wire | |
1592 | * format. | |
1593 | */ | |
1594 | unsigned char *alpn; | |
1595 | size_t alpn_len; | |
1596 | /* | |
1597 | * Next protocol negotiation. For the client, this is the protocol that | |
1598 | * we sent in NextProtocol and is set when handling ServerHello | |
1599 | * extensions. For a server, this is the client's selected_protocol from | |
1600 | * NextProtocol and is set when handling the NextProtocol message, before | |
1601 | * the Finished message. | |
1602 | */ | |
1603 | unsigned char *npn; | |
1604 | size_t npn_len; | |
1605 | ||
1606 | /* The available PSK key exchange modes */ | |
1607 | int psk_kex_mode; | |
1608 | ||
1609 | /* Set to one if we have negotiated ETM */ | |
1610 | int use_etm; | |
1611 | ||
1612 | /* Are we expecting to receive early data? */ | |
1613 | int early_data; | |
1614 | /* Is the session suitable for early data? */ | |
1615 | int early_data_ok; | |
1616 | ||
1617 | /* May be sent by a server in HRR. Must be echoed back in ClientHello */ | |
1618 | unsigned char *tls13_cookie; | |
1619 | size_t tls13_cookie_len; | |
1620 | /* Have we received a cookie from the client? */ | |
1621 | int cookieok; | |
1622 | ||
1623 | /* | |
1624 | * Maximum Fragment Length as per RFC 4366. | |
1625 | * If this member contains one of the allowed values (1-4) | |
1626 | * then we should include Maximum Fragment Length Negotiation | |
1627 | * extension in Client Hello. | |
1628 | * Please note that value of this member does not have direct | |
1629 | * effect. The actual (binding) value is stored in SSL_SESSION, | |
1630 | * as this extension is optional on server side. | |
1631 | */ | |
1632 | uint8_t max_fragment_len_mode; | |
1633 | ||
1634 | /* | |
1635 | * On the client side the number of ticket identities we sent in the | |
1636 | * ClientHello. On the server side the identity of the ticket we | |
1637 | * selected. | |
1638 | */ | |
1639 | int tick_identity; | |
1640 | } ext; | |
1641 | ||
1642 | /* | |
1643 | * Parsed form of the ClientHello, kept around across client_hello_cb | |
1644 | * calls. | |
1645 | */ | |
1646 | CLIENTHELLO_MSG *clienthello; | |
1647 | ||
1648 | /*- | |
1649 | * no further mod of servername | |
1650 | * 0 : call the servername extension callback. | |
1651 | * 1 : prepare 2, allow last ack just after in server callback. | |
1652 | * 2 : don't call servername callback, no ack in server hello | |
1653 | */ | |
1654 | int servername_done; | |
1655 | # ifndef OPENSSL_NO_CT | |
1656 | /* | |
1657 | * Validates that the SCTs (Signed Certificate Timestamps) are sufficient. | |
1658 | * If they are not, the connection should be aborted. | |
1659 | */ | |
1660 | ssl_ct_validation_cb ct_validation_callback; | |
1661 | /* User-supplied argument that is passed to the ct_validation_callback */ | |
1662 | void *ct_validation_callback_arg; | |
1663 | /* | |
1664 | * Consolidated stack of SCTs from all sources. | |
1665 | * Lazily populated by CT_get_peer_scts(SSL*) | |
1666 | */ | |
1667 | STACK_OF(SCT) *scts; | |
1668 | /* Have we attempted to find/parse SCTs yet? */ | |
1669 | int scts_parsed; | |
1670 | # endif | |
1671 | SSL_CTX *session_ctx; /* initial ctx, used to store sessions */ | |
1672 | # ifndef OPENSSL_NO_SRTP | |
1673 | /* What we'll do */ | |
1674 | STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles; | |
1675 | /* What's been chosen */ | |
1676 | SRTP_PROTECTION_PROFILE *srtp_profile; | |
1677 | # endif | |
1678 | /*- | |
1679 | * 1 if we are renegotiating. | |
1680 | * 2 if we are a server and are inside a handshake | |
1681 | * (i.e. not just sending a HelloRequest) | |
1682 | */ | |
1683 | int renegotiate; | |
1684 | /* If sending a KeyUpdate is pending */ | |
1685 | int key_update; | |
1686 | /* Post-handshake authentication state */ | |
1687 | SSL_PHA_STATE post_handshake_auth; | |
1688 | int pha_enabled; | |
1689 | uint8_t* pha_context; | |
1690 | size_t pha_context_len; | |
1691 | int certreqs_sent; | |
1692 | EVP_MD_CTX *pha_dgst; /* this is just the digest through ClientFinished */ | |
1693 | ||
1694 | # ifndef OPENSSL_NO_SRP | |
1695 | /* ctx for SRP authentication */ | |
1696 | SRP_CTX srp_ctx; | |
1697 | # endif | |
1698 | /* | |
1699 | * Callback for disabling session caching and ticket support on a session | |
1700 | * basis, depending on the chosen cipher. | |
1701 | */ | |
1702 | int (*not_resumable_session_cb) (SSL *ssl, int is_forward_secure); | |
1703 | RECORD_LAYER rlayer; | |
1704 | /* Default password callback. */ | |
1705 | pem_password_cb *default_passwd_callback; | |
1706 | /* Default password callback user data. */ | |
1707 | void *default_passwd_callback_userdata; | |
1708 | /* Async Job info */ | |
1709 | ASYNC_JOB *job; | |
1710 | ASYNC_WAIT_CTX *waitctx; | |
1711 | size_t asyncrw; | |
1712 | ||
1713 | /* | |
1714 | * The maximum number of bytes advertised in session tickets that can be | |
1715 | * sent as early data. | |
1716 | */ | |
1717 | uint32_t max_early_data; | |
1718 | /* | |
1719 | * The maximum number of bytes of early data that a server will tolerate | |
1720 | * (which should be at least as much as max_early_data). | |
1721 | */ | |
1722 | uint32_t recv_max_early_data; | |
1723 | ||
1724 | /* | |
1725 | * The number of bytes of early data received so far. If we accepted early | |
1726 | * data then this is a count of the plaintext bytes. If we rejected it then | |
1727 | * this is a count of the ciphertext bytes. | |
1728 | */ | |
1729 | uint32_t early_data_count; | |
1730 | ||
1731 | /* TLS1.3 padding callback */ | |
1732 | size_t (*record_padding_cb)(SSL *s, int type, size_t len, void *arg); | |
1733 | void *record_padding_arg; | |
1734 | size_t block_padding; | |
1735 | ||
1736 | CRYPTO_RWLOCK *lock; | |
1737 | ||
1738 | /* The number of TLS1.3 tickets to automatically send */ | |
1739 | size_t num_tickets; | |
1740 | /* The number of TLS1.3 tickets actually sent so far */ | |
1741 | size_t sent_tickets; | |
1742 | /* The next nonce value to use when we send a ticket on this connection */ | |
1743 | uint64_t next_ticket_nonce; | |
1744 | ||
1745 | /* Callback to determine if early_data is acceptable or not */ | |
1746 | SSL_allow_early_data_cb_fn allow_early_data_cb; | |
1747 | void *allow_early_data_cb_data; | |
1748 | ||
1749 | /* Callback for SSL async handling */ | |
1750 | SSL_async_callback_fn async_cb; | |
1751 | void *async_cb_arg; | |
1752 | ||
1753 | /* | |
1754 | * Signature algorithms shared by client and server: cached because these | |
1755 | * are used most often. | |
1756 | */ | |
1757 | const struct sigalg_lookup_st **shared_sigalgs; | |
1758 | size_t shared_sigalgslen; | |
1759 | }; | |
1760 | ||
1761 | /* | |
1762 | * Structure containing table entry of values associated with the signature | |
1763 | * algorithms (signature scheme) extension | |
1764 | */ | |
1765 | typedef struct sigalg_lookup_st { | |
1766 | /* TLS 1.3 signature scheme name */ | |
1767 | const char *name; | |
1768 | /* Raw value used in extension */ | |
1769 | uint16_t sigalg; | |
1770 | /* NID of hash algorithm or NID_undef if no hash */ | |
1771 | int hash; | |
1772 | /* Index of hash algorithm or -1 if no hash algorithm */ | |
1773 | int hash_idx; | |
1774 | /* NID of signature algorithm */ | |
1775 | int sig; | |
1776 | /* Index of signature algorithm */ | |
1777 | int sig_idx; | |
1778 | /* Combined hash and signature NID, if any */ | |
1779 | int sigandhash; | |
1780 | /* Required public key curve (ECDSA only) */ | |
1781 | int curve; | |
1782 | /* Whether this signature algorithm is actually available for use */ | |
1783 | int enabled; | |
1784 | } SIGALG_LOOKUP; | |
1785 | ||
1786 | typedef struct tls_group_info_st { | |
1787 | int nid; /* Curve NID */ | |
1788 | const char *keytype; | |
1789 | int secbits; /* Bits of security (from SP800-57) */ | |
1790 | uint32_t flags; /* For group type and applicable TLS versions */ | |
1791 | uint16_t group_id; /* Group ID */ | |
1792 | } TLS_GROUP_INFO; | |
1793 | ||
1794 | /* flags values */ | |
1795 | # define TLS_GROUP_TYPE 0x0000000FU /* Mask for group type */ | |
1796 | # define TLS_GROUP_CURVE_PRIME 0x00000001U | |
1797 | # define TLS_GROUP_CURVE_CHAR2 0x00000002U | |
1798 | # define TLS_GROUP_CURVE_CUSTOM 0x00000004U | |
1799 | # define TLS_GROUP_FFDHE 0x00000008U | |
1800 | # define TLS_GROUP_ONLY_FOR_TLS1_3 0x00000010U | |
1801 | ||
1802 | # define TLS_GROUP_FFDHE_FOR_TLS1_3 (TLS_GROUP_FFDHE|TLS_GROUP_ONLY_FOR_TLS1_3) | |
1803 | ||
1804 | /* | |
1805 | * Structure containing table entry of certificate info corresponding to | |
1806 | * CERT_PKEY entries | |
1807 | */ | |
1808 | typedef struct { | |
1809 | int nid; /* NID of public key algorithm */ | |
1810 | uint32_t amask; /* authmask corresponding to key type */ | |
1811 | } SSL_CERT_LOOKUP; | |
1812 | ||
1813 | /* DTLS structures */ | |
1814 | ||
1815 | # ifndef OPENSSL_NO_SCTP | |
1816 | # define DTLS1_SCTP_AUTH_LABEL "EXPORTER_DTLS_OVER_SCTP" | |
1817 | # endif | |
1818 | ||
1819 | /* Max MTU overhead we know about so far is 40 for IPv6 + 8 for UDP */ | |
1820 | # define DTLS1_MAX_MTU_OVERHEAD 48 | |
1821 | ||
1822 | /* | |
1823 | * Flag used in message reuse to indicate the buffer contains the record | |
1824 | * header as well as the handshake message header. | |
1825 | */ | |
1826 | # define DTLS1_SKIP_RECORD_HEADER 2 | |
1827 | ||
1828 | struct dtls1_retransmit_state { | |
1829 | EVP_CIPHER_CTX *enc_write_ctx; /* cryptographic state */ | |
1830 | EVP_MD_CTX *write_hash; /* used for mac generation */ | |
1831 | COMP_CTX *compress; /* compression */ | |
1832 | SSL_SESSION *session; | |
1833 | unsigned short epoch; | |
1834 | }; | |
1835 | ||
1836 | struct hm_header_st { | |
1837 | unsigned char type; | |
1838 | size_t msg_len; | |
1839 | unsigned short seq; | |
1840 | size_t frag_off; | |
1841 | size_t frag_len; | |
1842 | unsigned int is_ccs; | |
1843 | struct dtls1_retransmit_state saved_retransmit_state; | |
1844 | }; | |
1845 | ||
1846 | struct dtls1_timeout_st { | |
1847 | /* Number of read timeouts so far */ | |
1848 | unsigned int read_timeouts; | |
1849 | /* Number of write timeouts so far */ | |
1850 | unsigned int write_timeouts; | |
1851 | /* Number of alerts received so far */ | |
1852 | unsigned int num_alerts; | |
1853 | }; | |
1854 | ||
1855 | typedef struct hm_fragment_st { | |
1856 | struct hm_header_st msg_header; | |
1857 | unsigned char *fragment; | |
1858 | unsigned char *reassembly; | |
1859 | } hm_fragment; | |
1860 | ||
1861 | typedef struct pqueue_st pqueue; | |
1862 | typedef struct pitem_st pitem; | |
1863 | ||
1864 | struct pitem_st { | |
1865 | unsigned char priority[8]; /* 64-bit value in big-endian encoding */ | |
1866 | void *data; | |
1867 | pitem *next; | |
1868 | }; | |
1869 | ||
1870 | typedef struct pitem_st *piterator; | |
1871 | ||
1872 | pitem *pitem_new(unsigned char *prio64be, void *data); | |
1873 | void pitem_free(pitem *item); | |
1874 | pqueue *pqueue_new(void); | |
1875 | void pqueue_free(pqueue *pq); | |
1876 | pitem *pqueue_insert(pqueue *pq, pitem *item); | |
1877 | pitem *pqueue_peek(pqueue *pq); | |
1878 | pitem *pqueue_pop(pqueue *pq); | |
1879 | pitem *pqueue_find(pqueue *pq, unsigned char *prio64be); | |
1880 | pitem *pqueue_iterator(pqueue *pq); | |
1881 | pitem *pqueue_next(piterator *iter); | |
1882 | size_t pqueue_size(pqueue *pq); | |
1883 | ||
1884 | typedef struct dtls1_state_st { | |
1885 | unsigned char cookie[DTLS1_COOKIE_LENGTH]; | |
1886 | size_t cookie_len; | |
1887 | unsigned int cookie_verified; | |
1888 | /* handshake message numbers */ | |
1889 | unsigned short handshake_write_seq; | |
1890 | unsigned short next_handshake_write_seq; | |
1891 | unsigned short handshake_read_seq; | |
1892 | /* Buffered handshake messages */ | |
1893 | pqueue *buffered_messages; | |
1894 | /* Buffered (sent) handshake records */ | |
1895 | pqueue *sent_messages; | |
1896 | size_t link_mtu; /* max on-the-wire DTLS packet size */ | |
1897 | size_t mtu; /* max DTLS packet size */ | |
1898 | struct hm_header_st w_msg_hdr; | |
1899 | struct hm_header_st r_msg_hdr; | |
1900 | struct dtls1_timeout_st timeout; | |
1901 | /* | |
1902 | * Indicates when the last handshake msg sent will timeout | |
1903 | */ | |
1904 | struct timeval next_timeout; | |
1905 | /* Timeout duration */ | |
1906 | unsigned int timeout_duration_us; | |
1907 | ||
1908 | unsigned int retransmitting; | |
1909 | # ifndef OPENSSL_NO_SCTP | |
1910 | int shutdown_received; | |
1911 | # endif | |
1912 | ||
1913 | DTLS_timer_cb timer_cb; | |
1914 | ||
1915 | } DTLS1_STATE; | |
1916 | ||
1917 | # ifndef OPENSSL_NO_EC | |
1918 | /* | |
1919 | * From ECC-TLS draft, used in encoding the curve type in ECParameters | |
1920 | */ | |
1921 | # define EXPLICIT_PRIME_CURVE_TYPE 1 | |
1922 | # define EXPLICIT_CHAR2_CURVE_TYPE 2 | |
1923 | # define NAMED_CURVE_TYPE 3 | |
1924 | # endif /* OPENSSL_NO_EC */ | |
1925 | ||
1926 | struct cert_pkey_st { | |
1927 | X509 *x509; | |
1928 | EVP_PKEY *privatekey; | |
1929 | /* Chain for this certificate */ | |
1930 | STACK_OF(X509) *chain; | |
1931 | /*- | |
1932 | * serverinfo data for this certificate. The data is in TLS Extension | |
1933 | * wire format, specifically it's a series of records like: | |
1934 | * uint16_t extension_type; // (RFC 5246, 7.4.1.4, Extension) | |
1935 | * uint16_t length; | |
1936 | * uint8_t data[length]; | |
1937 | */ | |
1938 | unsigned char *serverinfo; | |
1939 | size_t serverinfo_length; | |
1940 | }; | |
1941 | /* Retrieve Suite B flags */ | |
1942 | # define tls1_suiteb(s) (s->cert->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS) | |
1943 | /* Uses to check strict mode: suite B modes are always strict */ | |
1944 | # define SSL_CERT_FLAGS_CHECK_TLS_STRICT \ | |
1945 | (SSL_CERT_FLAG_SUITEB_128_LOS|SSL_CERT_FLAG_TLS_STRICT) | |
1946 | ||
1947 | typedef enum { | |
1948 | ENDPOINT_CLIENT = 0, | |
1949 | ENDPOINT_SERVER, | |
1950 | ENDPOINT_BOTH | |
1951 | } ENDPOINT; | |
1952 | ||
1953 | ||
1954 | typedef struct { | |
1955 | unsigned short ext_type; | |
1956 | ENDPOINT role; | |
1957 | /* The context which this extension applies to */ | |
1958 | unsigned int context; | |
1959 | /* | |
1960 | * Per-connection flags relating to this extension type: not used if | |
1961 | * part of an SSL_CTX structure. | |
1962 | */ | |
1963 | uint32_t ext_flags; | |
1964 | SSL_custom_ext_add_cb_ex add_cb; | |
1965 | SSL_custom_ext_free_cb_ex free_cb; | |
1966 | void *add_arg; | |
1967 | SSL_custom_ext_parse_cb_ex parse_cb; | |
1968 | void *parse_arg; | |
1969 | } custom_ext_method; | |
1970 | ||
1971 | /* ext_flags values */ | |
1972 | ||
1973 | /* | |
1974 | * Indicates an extension has been received. Used to check for unsolicited or | |
1975 | * duplicate extensions. | |
1976 | */ | |
1977 | # define SSL_EXT_FLAG_RECEIVED 0x1 | |
1978 | /* | |
1979 | * Indicates an extension has been sent: used to enable sending of | |
1980 | * corresponding ServerHello extension. | |
1981 | */ | |
1982 | # define SSL_EXT_FLAG_SENT 0x2 | |
1983 | ||
1984 | typedef struct { | |
1985 | custom_ext_method *meths; | |
1986 | size_t meths_count; | |
1987 | } custom_ext_methods; | |
1988 | ||
1989 | typedef struct cert_st { | |
1990 | /* Current active set */ | |
1991 | /* | |
1992 | * ALWAYS points to an element of the pkeys array | |
1993 | * Probably it would make more sense to store | |
1994 | * an index, not a pointer. | |
1995 | */ | |
1996 | CERT_PKEY *key; | |
1997 | # ifndef OPENSSL_NO_DH | |
1998 | EVP_PKEY *dh_tmp; | |
1999 | DH *(*dh_tmp_cb) (SSL *ssl, int is_export, int keysize); | |
2000 | int dh_tmp_auto; | |
2001 | # endif | |
2002 | /* Flags related to certificates */ | |
2003 | uint32_t cert_flags; | |
2004 | CERT_PKEY pkeys[SSL_PKEY_NUM]; | |
2005 | /* Custom certificate types sent in certificate request message. */ | |
2006 | uint8_t *ctype; | |
2007 | size_t ctype_len; | |
2008 | /* | |
2009 | * supported signature algorithms. When set on a client this is sent in | |
2010 | * the client hello as the supported signature algorithms extension. For | |
2011 | * servers it represents the signature algorithms we are willing to use. | |
2012 | */ | |
2013 | uint16_t *conf_sigalgs; | |
2014 | /* Size of above array */ | |
2015 | size_t conf_sigalgslen; | |
2016 | /* | |
2017 | * Client authentication signature algorithms, if not set then uses | |
2018 | * conf_sigalgs. On servers these will be the signature algorithms sent | |
2019 | * to the client in a certificate request for TLS 1.2. On a client this | |
2020 | * represents the signature algorithms we are willing to use for client | |
2021 | * authentication. | |
2022 | */ | |
2023 | uint16_t *client_sigalgs; | |
2024 | /* Size of above array */ | |
2025 | size_t client_sigalgslen; | |
2026 | /* | |
2027 | * Certificate setup callback: if set is called whenever a certificate | |
2028 | * may be required (client or server). the callback can then examine any | |
2029 | * appropriate parameters and setup any certificates required. This | |
2030 | * allows advanced applications to select certificates on the fly: for | |
2031 | * example based on supported signature algorithms or curves. | |
2032 | */ | |
2033 | int (*cert_cb) (SSL *ssl, void *arg); | |
2034 | void *cert_cb_arg; | |
2035 | /* | |
2036 | * Optional X509_STORE for chain building or certificate validation If | |
2037 | * NULL the parent SSL_CTX store is used instead. | |
2038 | */ | |
2039 | X509_STORE *chain_store; | |
2040 | X509_STORE *verify_store; | |
2041 | /* Custom extensions */ | |
2042 | custom_ext_methods custext; | |
2043 | /* Security callback */ | |
2044 | int (*sec_cb) (const SSL *s, const SSL_CTX *ctx, int op, int bits, int nid, | |
2045 | void *other, void *ex); | |
2046 | /* Security level */ | |
2047 | int sec_level; | |
2048 | void *sec_ex; | |
2049 | # ifndef OPENSSL_NO_PSK | |
2050 | /* If not NULL psk identity hint to use for servers */ | |
2051 | char *psk_identity_hint; | |
2052 | # endif | |
2053 | CRYPTO_REF_COUNT references; /* >1 only if SSL_copy_session_id is used */ | |
2054 | CRYPTO_RWLOCK *lock; | |
2055 | } CERT; | |
2056 | ||
2057 | # define FP_ICC (int (*)(const void *,const void *)) | |
2058 | ||
2059 | /* | |
2060 | * This is for the SSLv3/TLSv1.0 differences in crypto/hash stuff It is a bit | |
2061 | * of a mess of functions, but hell, think of it as an opaque structure :-) | |
2062 | */ | |
2063 | typedef struct ssl3_enc_method { | |
2064 | int (*enc) (SSL *, SSL3_RECORD *, size_t, int); | |
2065 | int (*mac) (SSL *, SSL3_RECORD *, unsigned char *, int); | |
2066 | int (*setup_key_block) (SSL *); | |
2067 | int (*generate_master_secret) (SSL *, unsigned char *, unsigned char *, | |
2068 | size_t, size_t *); | |
2069 | int (*change_cipher_state) (SSL *, int); | |
2070 | size_t (*final_finish_mac) (SSL *, const char *, size_t, unsigned char *); | |
2071 | const char *client_finished_label; | |
2072 | size_t client_finished_label_len; | |
2073 | const char *server_finished_label; | |
2074 | size_t server_finished_label_len; | |
2075 | int (*alert_value) (int); | |
2076 | int (*export_keying_material) (SSL *, unsigned char *, size_t, | |
2077 | const char *, size_t, | |
2078 | const unsigned char *, size_t, | |
2079 | int use_context); | |
2080 | /* Various flags indicating protocol version requirements */ | |
2081 | uint32_t enc_flags; | |
2082 | /* Set the handshake header */ | |
2083 | int (*set_handshake_header) (SSL *s, WPACKET *pkt, int type); | |
2084 | /* Close construction of the handshake message */ | |
2085 | int (*close_construct_packet) (SSL *s, WPACKET *pkt, int htype); | |
2086 | /* Write out handshake message */ | |
2087 | int (*do_write) (SSL *s); | |
2088 | } SSL3_ENC_METHOD; | |
2089 | ||
2090 | # define ssl_set_handshake_header(s, pkt, htype) \ | |
2091 | s->method->ssl3_enc->set_handshake_header((s), (pkt), (htype)) | |
2092 | # define ssl_close_construct_packet(s, pkt, htype) \ | |
2093 | s->method->ssl3_enc->close_construct_packet((s), (pkt), (htype)) | |
2094 | # define ssl_do_write(s) s->method->ssl3_enc->do_write(s) | |
2095 | ||
2096 | /* Values for enc_flags */ | |
2097 | ||
2098 | /* Uses explicit IV for CBC mode */ | |
2099 | # define SSL_ENC_FLAG_EXPLICIT_IV 0x1 | |
2100 | /* Uses signature algorithms extension */ | |
2101 | # define SSL_ENC_FLAG_SIGALGS 0x2 | |
2102 | /* Uses SHA256 default PRF */ | |
2103 | # define SSL_ENC_FLAG_SHA256_PRF 0x4 | |
2104 | /* Is DTLS */ | |
2105 | # define SSL_ENC_FLAG_DTLS 0x8 | |
2106 | /* | |
2107 | * Allow TLS 1.2 ciphersuites: applies to DTLS 1.2 as well as TLS 1.2: may | |
2108 | * apply to others in future. | |
2109 | */ | |
2110 | # define SSL_ENC_FLAG_TLS1_2_CIPHERS 0x10 | |
2111 | ||
2112 | # ifndef OPENSSL_NO_COMP | |
2113 | /* Used for holding the relevant compression methods loaded into SSL_CTX */ | |
2114 | typedef struct ssl3_comp_st { | |
2115 | int comp_id; /* The identifier byte for this compression | |
2116 | * type */ | |
2117 | char *name; /* Text name used for the compression type */ | |
2118 | COMP_METHOD *method; /* The method :-) */ | |
2119 | } SSL3_COMP; | |
2120 | # endif | |
2121 | ||
2122 | typedef enum downgrade_en { | |
2123 | DOWNGRADE_NONE, | |
2124 | DOWNGRADE_TO_1_2, | |
2125 | DOWNGRADE_TO_1_1 | |
2126 | } DOWNGRADE; | |
2127 | ||
2128 | /* | |
2129 | * Dummy status type for the status_type extension. Indicates no status type | |
2130 | * set | |
2131 | */ | |
2132 | #define TLSEXT_STATUSTYPE_nothing -1 | |
2133 | ||
2134 | /* Sigalgs values */ | |
2135 | #define TLSEXT_SIGALG_ecdsa_secp256r1_sha256 0x0403 | |
2136 | #define TLSEXT_SIGALG_ecdsa_secp384r1_sha384 0x0503 | |
2137 | #define TLSEXT_SIGALG_ecdsa_secp521r1_sha512 0x0603 | |
2138 | #define TLSEXT_SIGALG_ecdsa_sha224 0x0303 | |
2139 | #define TLSEXT_SIGALG_ecdsa_sha1 0x0203 | |
2140 | #define TLSEXT_SIGALG_rsa_pss_rsae_sha256 0x0804 | |
2141 | #define TLSEXT_SIGALG_rsa_pss_rsae_sha384 0x0805 | |
2142 | #define TLSEXT_SIGALG_rsa_pss_rsae_sha512 0x0806 | |
2143 | #define TLSEXT_SIGALG_rsa_pss_pss_sha256 0x0809 | |
2144 | #define TLSEXT_SIGALG_rsa_pss_pss_sha384 0x080a | |
2145 | #define TLSEXT_SIGALG_rsa_pss_pss_sha512 0x080b | |
2146 | #define TLSEXT_SIGALG_rsa_pkcs1_sha256 0x0401 | |
2147 | #define TLSEXT_SIGALG_rsa_pkcs1_sha384 0x0501 | |
2148 | #define TLSEXT_SIGALG_rsa_pkcs1_sha512 0x0601 | |
2149 | #define TLSEXT_SIGALG_rsa_pkcs1_sha224 0x0301 | |
2150 | #define TLSEXT_SIGALG_rsa_pkcs1_sha1 0x0201 | |
2151 | #define TLSEXT_SIGALG_dsa_sha256 0x0402 | |
2152 | #define TLSEXT_SIGALG_dsa_sha384 0x0502 | |
2153 | #define TLSEXT_SIGALG_dsa_sha512 0x0602 | |
2154 | #define TLSEXT_SIGALG_dsa_sha224 0x0302 | |
2155 | #define TLSEXT_SIGALG_dsa_sha1 0x0202 | |
2156 | #define TLSEXT_SIGALG_gostr34102012_256_intrinsic 0x0840 | |
2157 | #define TLSEXT_SIGALG_gostr34102012_512_intrinsic 0x0841 | |
2158 | #define TLSEXT_SIGALG_gostr34102012_256_gostr34112012_256 0xeeee | |
2159 | #define TLSEXT_SIGALG_gostr34102012_512_gostr34112012_512 0xefef | |
2160 | #define TLSEXT_SIGALG_gostr34102001_gostr3411 0xeded | |
2161 | ||
2162 | #define TLSEXT_SIGALG_ed25519 0x0807 | |
2163 | #define TLSEXT_SIGALG_ed448 0x0808 | |
2164 | ||
2165 | /* Known PSK key exchange modes */ | |
2166 | #define TLSEXT_KEX_MODE_KE 0x00 | |
2167 | #define TLSEXT_KEX_MODE_KE_DHE 0x01 | |
2168 | ||
2169 | /* | |
2170 | * Internal representations of key exchange modes | |
2171 | */ | |
2172 | #define TLSEXT_KEX_MODE_FLAG_NONE 0 | |
2173 | #define TLSEXT_KEX_MODE_FLAG_KE 1 | |
2174 | #define TLSEXT_KEX_MODE_FLAG_KE_DHE 2 | |
2175 | ||
2176 | #define SSL_USE_PSS(s) (s->s3.tmp.peer_sigalg != NULL && \ | |
2177 | s->s3.tmp.peer_sigalg->sig == EVP_PKEY_RSA_PSS) | |
2178 | ||
2179 | /* A dummy signature value not valid for TLSv1.2 signature algs */ | |
2180 | #define TLSEXT_signature_rsa_pss 0x0101 | |
2181 | ||
2182 | /* TLSv1.3 downgrade protection sentinel values */ | |
2183 | extern const unsigned char tls11downgrade[8]; | |
2184 | extern const unsigned char tls12downgrade[8]; | |
2185 | ||
2186 | extern SSL3_ENC_METHOD ssl3_undef_enc_method; | |
2187 | ||
2188 | __owur const SSL_METHOD *ssl_bad_method(int ver); | |
2189 | __owur const SSL_METHOD *sslv3_method(void); | |
2190 | __owur const SSL_METHOD *sslv3_server_method(void); | |
2191 | __owur const SSL_METHOD *sslv3_client_method(void); | |
2192 | __owur const SSL_METHOD *tlsv1_method(void); | |
2193 | __owur const SSL_METHOD *tlsv1_server_method(void); | |
2194 | __owur const SSL_METHOD *tlsv1_client_method(void); | |
2195 | __owur const SSL_METHOD *tlsv1_1_method(void); | |
2196 | __owur const SSL_METHOD *tlsv1_1_server_method(void); | |
2197 | __owur const SSL_METHOD *tlsv1_1_client_method(void); | |
2198 | __owur const SSL_METHOD *tlsv1_2_method(void); | |
2199 | __owur const SSL_METHOD *tlsv1_2_server_method(void); | |
2200 | __owur const SSL_METHOD *tlsv1_2_client_method(void); | |
2201 | __owur const SSL_METHOD *tlsv1_3_method(void); | |
2202 | __owur const SSL_METHOD *tlsv1_3_server_method(void); | |
2203 | __owur const SSL_METHOD *tlsv1_3_client_method(void); | |
2204 | __owur const SSL_METHOD *dtlsv1_method(void); | |
2205 | __owur const SSL_METHOD *dtlsv1_server_method(void); | |
2206 | __owur const SSL_METHOD *dtlsv1_client_method(void); | |
2207 | __owur const SSL_METHOD *dtls_bad_ver_client_method(void); | |
2208 | __owur const SSL_METHOD *dtlsv1_2_method(void); | |
2209 | __owur const SSL_METHOD *dtlsv1_2_server_method(void); | |
2210 | __owur const SSL_METHOD *dtlsv1_2_client_method(void); | |
2211 | ||
2212 | extern const SSL3_ENC_METHOD TLSv1_enc_data; | |
2213 | extern const SSL3_ENC_METHOD TLSv1_1_enc_data; | |
2214 | extern const SSL3_ENC_METHOD TLSv1_2_enc_data; | |
2215 | extern const SSL3_ENC_METHOD TLSv1_3_enc_data; | |
2216 | extern const SSL3_ENC_METHOD SSLv3_enc_data; | |
2217 | extern const SSL3_ENC_METHOD DTLSv1_enc_data; | |
2218 | extern const SSL3_ENC_METHOD DTLSv1_2_enc_data; | |
2219 | ||
2220 | /* | |
2221 | * Flags for SSL methods | |
2222 | */ | |
2223 | # define SSL_METHOD_NO_FIPS (1U<<0) | |
2224 | # define SSL_METHOD_NO_SUITEB (1U<<1) | |
2225 | ||
2226 | # define IMPLEMENT_tls_meth_func(version, flags, mask, func_name, s_accept, \ | |
2227 | s_connect, enc_data) \ | |
2228 | const SSL_METHOD *func_name(void) \ | |
2229 | { \ | |
2230 | static const SSL_METHOD func_name##_data= { \ | |
2231 | version, \ | |
2232 | flags, \ | |
2233 | mask, \ | |
2234 | tls1_new, \ | |
2235 | tls1_clear, \ | |
2236 | tls1_free, \ | |
2237 | s_accept, \ | |
2238 | s_connect, \ | |
2239 | ssl3_read, \ | |
2240 | ssl3_peek, \ | |
2241 | ssl3_write, \ | |
2242 | ssl3_shutdown, \ | |
2243 | ssl3_renegotiate, \ | |
2244 | ssl3_renegotiate_check, \ | |
2245 | ssl3_read_bytes, \ | |
2246 | ssl3_write_bytes, \ | |
2247 | ssl3_dispatch_alert, \ | |
2248 | ssl3_ctrl, \ | |
2249 | ssl3_ctx_ctrl, \ | |
2250 | ssl3_get_cipher_by_char, \ | |
2251 | ssl3_put_cipher_by_char, \ | |
2252 | ssl3_pending, \ | |
2253 | ssl3_num_ciphers, \ | |
2254 | ssl3_get_cipher, \ | |
2255 | tls1_default_timeout, \ | |
2256 | &enc_data, \ | |
2257 | ssl_undefined_void_function, \ | |
2258 | ssl3_callback_ctrl, \ | |
2259 | ssl3_ctx_callback_ctrl, \ | |
2260 | }; \ | |
2261 | return &func_name##_data; \ | |
2262 | } | |
2263 | ||
2264 | # define IMPLEMENT_ssl3_meth_func(func_name, s_accept, s_connect) \ | |
2265 | const SSL_METHOD *func_name(void) \ | |
2266 | { \ | |
2267 | static const SSL_METHOD func_name##_data= { \ | |
2268 | SSL3_VERSION, \ | |
2269 | SSL_METHOD_NO_FIPS | SSL_METHOD_NO_SUITEB, \ | |
2270 | SSL_OP_NO_SSLv3, \ | |
2271 | ssl3_new, \ | |
2272 | ssl3_clear, \ | |
2273 | ssl3_free, \ | |
2274 | s_accept, \ | |
2275 | s_connect, \ | |
2276 | ssl3_read, \ | |
2277 | ssl3_peek, \ | |
2278 | ssl3_write, \ | |
2279 | ssl3_shutdown, \ | |
2280 | ssl3_renegotiate, \ | |
2281 | ssl3_renegotiate_check, \ | |
2282 | ssl3_read_bytes, \ | |
2283 | ssl3_write_bytes, \ | |
2284 | ssl3_dispatch_alert, \ | |
2285 | ssl3_ctrl, \ | |
2286 | ssl3_ctx_ctrl, \ | |
2287 | ssl3_get_cipher_by_char, \ | |
2288 | ssl3_put_cipher_by_char, \ | |
2289 | ssl3_pending, \ | |
2290 | ssl3_num_ciphers, \ | |
2291 | ssl3_get_cipher, \ | |
2292 | ssl3_default_timeout, \ | |
2293 | &SSLv3_enc_data, \ | |
2294 | ssl_undefined_void_function, \ | |
2295 | ssl3_callback_ctrl, \ | |
2296 | ssl3_ctx_callback_ctrl, \ | |
2297 | }; \ | |
2298 | return &func_name##_data; \ | |
2299 | } | |
2300 | ||
2301 | # define IMPLEMENT_dtls1_meth_func(version, flags, mask, func_name, s_accept, \ | |
2302 | s_connect, enc_data) \ | |
2303 | const SSL_METHOD *func_name(void) \ | |
2304 | { \ | |
2305 | static const SSL_METHOD func_name##_data= { \ | |
2306 | version, \ | |
2307 | flags, \ | |
2308 | mask, \ | |
2309 | dtls1_new, \ | |
2310 | dtls1_clear, \ | |
2311 | dtls1_free, \ | |
2312 | s_accept, \ | |
2313 | s_connect, \ | |
2314 | ssl3_read, \ | |
2315 | ssl3_peek, \ | |
2316 | ssl3_write, \ | |
2317 | dtls1_shutdown, \ | |
2318 | ssl3_renegotiate, \ | |
2319 | ssl3_renegotiate_check, \ | |
2320 | dtls1_read_bytes, \ | |
2321 | dtls1_write_app_data_bytes, \ | |
2322 | dtls1_dispatch_alert, \ | |
2323 | dtls1_ctrl, \ | |
2324 | ssl3_ctx_ctrl, \ | |
2325 | ssl3_get_cipher_by_char, \ | |
2326 | ssl3_put_cipher_by_char, \ | |
2327 | ssl3_pending, \ | |
2328 | ssl3_num_ciphers, \ | |
2329 | ssl3_get_cipher, \ | |
2330 | dtls1_default_timeout, \ | |
2331 | &enc_data, \ | |
2332 | ssl_undefined_void_function, \ | |
2333 | ssl3_callback_ctrl, \ | |
2334 | ssl3_ctx_callback_ctrl, \ | |
2335 | }; \ | |
2336 | return &func_name##_data; \ | |
2337 | } | |
2338 | ||
2339 | struct openssl_ssl_test_functions { | |
2340 | int (*p_ssl_init_wbio_buffer) (SSL *s); | |
2341 | int (*p_ssl3_setup_buffers) (SSL *s); | |
2342 | }; | |
2343 | ||
2344 | const char *ssl_protocol_to_string(int version); | |
2345 | ||
2346 | /* Returns true if certificate and private key for 'idx' are present */ | |
2347 | static ossl_inline int ssl_has_cert(const SSL *s, int idx) | |
2348 | { | |
2349 | if (idx < 0 || idx >= SSL_PKEY_NUM) | |
2350 | return 0; | |
2351 | return s->cert->pkeys[idx].x509 != NULL | |
2352 | && s->cert->pkeys[idx].privatekey != NULL; | |
2353 | } | |
2354 | ||
2355 | static ossl_inline void tls1_get_peer_groups(SSL *s, const uint16_t **pgroups, | |
2356 | size_t *pgroupslen) | |
2357 | { | |
2358 | *pgroups = s->ext.peer_supportedgroups; | |
2359 | *pgroupslen = s->ext.peer_supportedgroups_len; | |
2360 | } | |
2361 | ||
2362 | # ifndef OPENSSL_UNIT_TEST | |
2363 | ||
2364 | __owur int ssl_read_internal(SSL *s, void *buf, size_t num, size_t *readbytes); | |
2365 | __owur int ssl_write_internal(SSL *s, const void *buf, size_t num, size_t *written); | |
2366 | void ssl_clear_cipher_ctx(SSL *s); | |
2367 | int ssl_clear_bad_session(SSL *s); | |
2368 | __owur CERT *ssl_cert_new(void); | |
2369 | __owur CERT *ssl_cert_dup(CERT *cert); | |
2370 | void ssl_cert_clear_certs(CERT *c); | |
2371 | void ssl_cert_free(CERT *c); | |
2372 | __owur int ssl_generate_session_id(SSL *s, SSL_SESSION *ss); | |
2373 | __owur int ssl_get_new_session(SSL *s, int session); | |
2374 | __owur SSL_SESSION *lookup_sess_in_cache(SSL *s, const unsigned char *sess_id, | |
2375 | size_t sess_id_len); | |
2376 | __owur int ssl_get_prev_session(SSL *s, CLIENTHELLO_MSG *hello); | |
2377 | __owur SSL_SESSION *ssl_session_dup(const SSL_SESSION *src, int ticket); | |
2378 | __owur int ssl_cipher_id_cmp(const SSL_CIPHER *a, const SSL_CIPHER *b); | |
2379 | DECLARE_OBJ_BSEARCH_GLOBAL_CMP_FN(SSL_CIPHER, SSL_CIPHER, ssl_cipher_id); | |
2380 | __owur int ssl_cipher_ptr_id_cmp(const SSL_CIPHER *const *ap, | |
2381 | const SSL_CIPHER *const *bp); | |
2382 | __owur STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(const SSL_METHOD *ssl_method, | |
2383 | STACK_OF(SSL_CIPHER) *tls13_ciphersuites, | |
2384 | STACK_OF(SSL_CIPHER) **cipher_list, | |
2385 | STACK_OF(SSL_CIPHER) **cipher_list_by_id, | |
2386 | const char *rule_str, | |
2387 | CERT *c); | |
2388 | __owur int ssl_cache_cipherlist(SSL *s, PACKET *cipher_suites, int sslv2format); | |
2389 | __owur int bytes_to_cipher_list(SSL *s, PACKET *cipher_suites, | |
2390 | STACK_OF(SSL_CIPHER) **skp, | |
2391 | STACK_OF(SSL_CIPHER) **scsvs, int sslv2format, | |
2392 | int fatal); | |
2393 | void ssl_update_cache(SSL *s, int mode); | |
2394 | __owur int ssl_cipher_get_evp_cipher(SSL_CTX *ctx, const SSL_CIPHER *sslc, | |
2395 | const EVP_CIPHER **enc); | |
2396 | __owur int ssl_cipher_get_evp(SSL_CTX *ctxc, const SSL_SESSION *s, | |
2397 | const EVP_CIPHER **enc, const EVP_MD **md, | |
2398 | int *mac_pkey_type, size_t *mac_secret_size, | |
2399 | SSL_COMP **comp, int use_etm); | |
2400 | __owur int ssl_cipher_get_overhead(const SSL_CIPHER *c, size_t *mac_overhead, | |
2401 | size_t *int_overhead, size_t *blocksize, | |
2402 | size_t *ext_overhead); | |
2403 | __owur int ssl_cert_is_disabled(size_t idx); | |
2404 | __owur const SSL_CIPHER *ssl_get_cipher_by_char(SSL *ssl, | |
2405 | const unsigned char *ptr, | |
2406 | int all); | |
2407 | __owur int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain); | |
2408 | __owur int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain); | |
2409 | __owur int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x); | |
2410 | __owur int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x); | |
2411 | __owur int ssl_cert_select_current(CERT *c, X509 *x); | |
2412 | __owur int ssl_cert_set_current(CERT *c, long arg); | |
2413 | void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg); | |
2414 | ||
2415 | __owur int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk); | |
2416 | __owur int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags); | |
2417 | __owur int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, | |
2418 | int ref); | |
2419 | ||
2420 | __owur int ssl_security(const SSL *s, int op, int bits, int nid, void *other); | |
2421 | __owur int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid, | |
2422 | void *other); | |
2423 | ||
2424 | __owur int ssl_cert_lookup_by_nid(int nid, size_t *pidx); | |
2425 | __owur const SSL_CERT_LOOKUP *ssl_cert_lookup_by_pkey(const EVP_PKEY *pk, | |
2426 | size_t *pidx); | |
2427 | __owur const SSL_CERT_LOOKUP *ssl_cert_lookup_by_idx(size_t idx); | |
2428 | ||
2429 | int ssl_undefined_function(SSL *s); | |
2430 | __owur int ssl_undefined_void_function(void); | |
2431 | __owur int ssl_undefined_const_function(const SSL *s); | |
2432 | __owur int ssl_get_server_cert_serverinfo(SSL *s, | |
2433 | const unsigned char **serverinfo, | |
2434 | size_t *serverinfo_length); | |
2435 | void ssl_set_masks(SSL *s); | |
2436 | __owur STACK_OF(SSL_CIPHER) *ssl_get_ciphers_by_id(SSL *s); | |
2437 | __owur int ssl_x509err2alert(int type); | |
2438 | void ssl_sort_cipher_list(void); | |
2439 | int ssl_load_ciphers(SSL_CTX *ctx); | |
2440 | __owur int ssl_setup_sig_algs(SSL_CTX *ctx); | |
2441 | __owur int ssl_fill_hello_random(SSL *s, int server, unsigned char *field, | |
2442 | size_t len, DOWNGRADE dgrd); | |
2443 | __owur int ssl_generate_master_secret(SSL *s, unsigned char *pms, size_t pmslen, | |
2444 | int free_pms); | |
2445 | __owur EVP_PKEY *ssl_generate_pkey(SSL *s, EVP_PKEY *pm); | |
2446 | __owur int ssl_derive(SSL *s, EVP_PKEY *privkey, EVP_PKEY *pubkey, | |
2447 | int genmaster); | |
2448 | __owur EVP_PKEY *ssl_dh_to_pkey(DH *dh); | |
2449 | __owur unsigned int ssl_get_max_send_fragment(const SSL *ssl); | |
2450 | __owur unsigned int ssl_get_split_send_fragment(const SSL *ssl); | |
2451 | ||
2452 | __owur const SSL_CIPHER *ssl3_get_cipher_by_id(uint32_t id); | |
2453 | __owur const SSL_CIPHER *ssl3_get_cipher_by_std_name(const char *stdname); | |
2454 | __owur const SSL_CIPHER *ssl3_get_cipher_by_char(const unsigned char *p); | |
2455 | __owur int ssl3_put_cipher_by_char(const SSL_CIPHER *c, WPACKET *pkt, | |
2456 | size_t *len); | |
2457 | int ssl3_init_finished_mac(SSL *s); | |
2458 | __owur int ssl3_setup_key_block(SSL *s); | |
2459 | __owur int ssl3_change_cipher_state(SSL *s, int which); | |
2460 | void ssl3_cleanup_key_block(SSL *s); | |
2461 | __owur int ssl3_do_write(SSL *s, int type); | |
2462 | int ssl3_send_alert(SSL *s, int level, int desc); | |
2463 | __owur int ssl3_generate_master_secret(SSL *s, unsigned char *out, | |
2464 | unsigned char *p, size_t len, | |
2465 | size_t *secret_size); | |
2466 | __owur int ssl3_get_req_cert_type(SSL *s, WPACKET *pkt); | |
2467 | __owur int ssl3_num_ciphers(void); | |
2468 | __owur const SSL_CIPHER *ssl3_get_cipher(unsigned int u); | |
2469 | int ssl3_renegotiate(SSL *ssl); | |
2470 | int ssl3_renegotiate_check(SSL *ssl, int initok); | |
2471 | void ssl3_digest_master_key_set_params(const SSL_SESSION *session, | |
2472 | OSSL_PARAM params[]); | |
2473 | __owur int ssl3_dispatch_alert(SSL *s); | |
2474 | __owur size_t ssl3_final_finish_mac(SSL *s, const char *sender, size_t slen, | |
2475 | unsigned char *p); | |
2476 | __owur int ssl3_finish_mac(SSL *s, const unsigned char *buf, size_t len); | |
2477 | void ssl3_free_digest_list(SSL *s); | |
2478 | __owur unsigned long ssl3_output_cert_chain(SSL *s, WPACKET *pkt, | |
2479 | CERT_PKEY *cpk); | |
2480 | __owur const SSL_CIPHER *ssl3_choose_cipher(SSL *ssl, | |
2481 | STACK_OF(SSL_CIPHER) *clnt, | |
2482 | STACK_OF(SSL_CIPHER) *srvr); | |
2483 | __owur int ssl3_digest_cached_records(SSL *s, int keep); | |
2484 | __owur int ssl3_new(SSL *s); | |
2485 | void ssl3_free(SSL *s); | |
2486 | __owur int ssl3_read(SSL *s, void *buf, size_t len, size_t *readbytes); | |
2487 | __owur int ssl3_peek(SSL *s, void *buf, size_t len, size_t *readbytes); | |
2488 | __owur int ssl3_write(SSL *s, const void *buf, size_t len, size_t *written); | |
2489 | __owur int ssl3_shutdown(SSL *s); | |
2490 | int ssl3_clear(SSL *s); | |
2491 | __owur long ssl3_ctrl(SSL *s, int cmd, long larg, void *parg); | |
2492 | __owur long ssl3_ctx_ctrl(SSL_CTX *s, int cmd, long larg, void *parg); | |
2493 | __owur long ssl3_callback_ctrl(SSL *s, int cmd, void (*fp) (void)); | |
2494 | __owur long ssl3_ctx_callback_ctrl(SSL_CTX *s, int cmd, void (*fp) (void)); | |
2495 | ||
2496 | __owur int ssl3_do_change_cipher_spec(SSL *ssl); | |
2497 | __owur long ssl3_default_timeout(void); | |
2498 | ||
2499 | __owur int ssl3_set_handshake_header(SSL *s, WPACKET *pkt, int htype); | |
2500 | __owur int tls_close_construct_packet(SSL *s, WPACKET *pkt, int htype); | |
2501 | __owur int tls_setup_handshake(SSL *s); | |
2502 | __owur int dtls1_set_handshake_header(SSL *s, WPACKET *pkt, int htype); | |
2503 | __owur int dtls1_close_construct_packet(SSL *s, WPACKET *pkt, int htype); | |
2504 | __owur int ssl3_handshake_write(SSL *s); | |
2505 | ||
2506 | __owur int ssl_allow_compression(SSL *s); | |
2507 | ||
2508 | __owur int ssl_version_supported(const SSL *s, int version, | |
2509 | const SSL_METHOD **meth); | |
2510 | ||
2511 | __owur int ssl_set_client_hello_version(SSL *s); | |
2512 | __owur int ssl_check_version_downgrade(SSL *s); | |
2513 | __owur int ssl_set_version_bound(int method_version, int version, int *bound); | |
2514 | __owur int ssl_choose_server_version(SSL *s, CLIENTHELLO_MSG *hello, | |
2515 | DOWNGRADE *dgrd); | |
2516 | __owur int ssl_choose_client_version(SSL *s, int version, | |
2517 | RAW_EXTENSION *extensions); | |
2518 | __owur int ssl_get_min_max_version(const SSL *s, int *min_version, | |
2519 | int *max_version, int *real_max); | |
2520 | ||
2521 | __owur long tls1_default_timeout(void); | |
2522 | __owur int dtls1_do_write(SSL *s, int type); | |
2523 | void dtls1_set_message_header(SSL *s, | |
2524 | unsigned char mt, | |
2525 | size_t len, | |
2526 | size_t frag_off, size_t frag_len); | |
2527 | ||
2528 | int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf_, size_t len, | |
2529 | size_t *written); | |
2530 | ||
2531 | __owur int dtls1_read_failed(SSL *s, int code); | |
2532 | __owur int dtls1_buffer_message(SSL *s, int ccs); | |
2533 | __owur int dtls1_retransmit_message(SSL *s, unsigned short seq, int *found); | |
2534 | __owur int dtls1_get_queue_priority(unsigned short seq, int is_ccs); | |
2535 | int dtls1_retransmit_buffered_messages(SSL *s); | |
2536 | void dtls1_clear_received_buffer(SSL *s); | |
2537 | void dtls1_clear_sent_buffer(SSL *s); | |
2538 | void dtls1_get_message_header(unsigned char *data, | |
2539 | struct hm_header_st *msg_hdr); | |
2540 | __owur long dtls1_default_timeout(void); | |
2541 | __owur struct timeval *dtls1_get_timeout(SSL *s, struct timeval *timeleft); | |
2542 | __owur int dtls1_check_timeout_num(SSL *s); | |
2543 | __owur int dtls1_handle_timeout(SSL *s); | |
2544 | void dtls1_start_timer(SSL *s); | |
2545 | void dtls1_stop_timer(SSL *s); | |
2546 | __owur int dtls1_is_timer_expired(SSL *s); | |
2547 | void dtls1_double_timeout(SSL *s); | |
2548 | __owur int dtls_raw_hello_verify_request(WPACKET *pkt, unsigned char *cookie, | |
2549 | size_t cookie_len); | |
2550 | __owur size_t dtls1_min_mtu(SSL *s); | |
2551 | void dtls1_hm_fragment_free(hm_fragment *frag); | |
2552 | __owur int dtls1_query_mtu(SSL *s); | |
2553 | ||
2554 | __owur int tls1_new(SSL *s); | |
2555 | void tls1_free(SSL *s); | |
2556 | int tls1_clear(SSL *s); | |
2557 | ||
2558 | __owur int dtls1_new(SSL *s); | |
2559 | void dtls1_free(SSL *s); | |
2560 | int dtls1_clear(SSL *s); | |
2561 | long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg); | |
2562 | __owur int dtls1_shutdown(SSL *s); | |
2563 | ||
2564 | __owur int dtls1_dispatch_alert(SSL *s); | |
2565 | ||
2566 | __owur int ssl_init_wbio_buffer(SSL *s); | |
2567 | int ssl_free_wbio_buffer(SSL *s); | |
2568 | ||
2569 | __owur int tls1_change_cipher_state(SSL *s, int which); | |
2570 | __owur int tls1_setup_key_block(SSL *s); | |
2571 | __owur size_t tls1_final_finish_mac(SSL *s, const char *str, size_t slen, | |
2572 | unsigned char *p); | |
2573 | __owur int tls1_generate_master_secret(SSL *s, unsigned char *out, | |
2574 | unsigned char *p, size_t len, | |
2575 | size_t *secret_size); | |
2576 | __owur int tls13_setup_key_block(SSL *s); | |
2577 | __owur size_t tls13_final_finish_mac(SSL *s, const char *str, size_t slen, | |
2578 | unsigned char *p); | |
2579 | __owur int tls13_change_cipher_state(SSL *s, int which); | |
2580 | __owur int tls13_update_key(SSL *s, int send); | |
2581 | __owur int tls13_hkdf_expand(SSL *s, const EVP_MD *md, | |
2582 | const unsigned char *secret, | |
2583 | const unsigned char *label, size_t labellen, | |
2584 | const unsigned char *data, size_t datalen, | |
2585 | unsigned char *out, size_t outlen, int fatal); | |
2586 | __owur int tls13_derive_key(SSL *s, const EVP_MD *md, | |
2587 | const unsigned char *secret, unsigned char *key, | |
2588 | size_t keylen); | |
2589 | __owur int tls13_derive_iv(SSL *s, const EVP_MD *md, | |
2590 | const unsigned char *secret, unsigned char *iv, | |
2591 | size_t ivlen); | |
2592 | __owur int tls13_derive_finishedkey(SSL *s, const EVP_MD *md, | |
2593 | const unsigned char *secret, | |
2594 | unsigned char *fin, size_t finlen); | |
2595 | int tls13_generate_secret(SSL *s, const EVP_MD *md, | |
2596 | const unsigned char *prevsecret, | |
2597 | const unsigned char *insecret, | |
2598 | size_t insecretlen, | |
2599 | unsigned char *outsecret); | |
2600 | __owur int tls13_generate_handshake_secret(SSL *s, | |
2601 | const unsigned char *insecret, | |
2602 | size_t insecretlen); | |
2603 | __owur int tls13_generate_master_secret(SSL *s, unsigned char *out, | |
2604 | unsigned char *prev, size_t prevlen, | |
2605 | size_t *secret_size); | |
2606 | __owur int tls1_export_keying_material(SSL *s, unsigned char *out, size_t olen, | |
2607 | const char *label, size_t llen, | |
2608 | const unsigned char *p, size_t plen, | |
2609 | int use_context); | |
2610 | __owur int tls13_export_keying_material(SSL *s, unsigned char *out, size_t olen, | |
2611 | const char *label, size_t llen, | |
2612 | const unsigned char *context, | |
2613 | size_t contextlen, int use_context); | |
2614 | __owur int tls13_export_keying_material_early(SSL *s, unsigned char *out, | |
2615 | size_t olen, const char *label, | |
2616 | size_t llen, | |
2617 | const unsigned char *context, | |
2618 | size_t contextlen); | |
2619 | __owur int tls1_alert_code(int code); | |
2620 | __owur int tls13_alert_code(int code); | |
2621 | __owur int ssl3_alert_code(int code); | |
2622 | ||
2623 | # ifndef OPENSSL_NO_EC | |
2624 | __owur int ssl_check_srvr_ecc_cert_and_alg(X509 *x, SSL *s); | |
2625 | # endif | |
2626 | ||
2627 | SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n); | |
2628 | ||
2629 | __owur const TLS_GROUP_INFO *tls1_group_id_lookup(uint16_t curve_id); | |
2630 | __owur int tls1_group_id2nid(uint16_t group_id); | |
2631 | __owur int tls1_check_group_id(SSL *s, uint16_t group_id, int check_own_curves); | |
2632 | __owur uint16_t tls1_shared_group(SSL *s, int nmatch); | |
2633 | __owur int tls1_set_groups(uint16_t **pext, size_t *pextlen, | |
2634 | int *curves, size_t ncurves); | |
2635 | __owur int tls1_set_groups_list(uint16_t **pext, size_t *pextlen, | |
2636 | const char *str); | |
2637 | __owur EVP_PKEY *ssl_generate_pkey_group(SSL *s, uint16_t id); | |
2638 | __owur int tls_valid_group(SSL *s, uint16_t group_id, int version); | |
2639 | __owur EVP_PKEY *ssl_generate_param_group(SSL *s, uint16_t id); | |
2640 | # ifndef OPENSSL_NO_EC | |
2641 | void tls1_get_formatlist(SSL *s, const unsigned char **pformats, | |
2642 | size_t *num_formats); | |
2643 | __owur int tls1_check_ec_tmp_key(SSL *s, unsigned long id); | |
2644 | # endif /* OPENSSL_NO_EC */ | |
2645 | ||
2646 | __owur int tls_group_allowed(SSL *s, uint16_t curve, int op); | |
2647 | void tls1_get_supported_groups(SSL *s, const uint16_t **pgroups, | |
2648 | size_t *pgroupslen); | |
2649 | ||
2650 | __owur int tls1_set_server_sigalgs(SSL *s); | |
2651 | ||
2652 | __owur SSL_TICKET_STATUS tls_get_ticket_from_client(SSL *s, CLIENTHELLO_MSG *hello, | |
2653 | SSL_SESSION **ret); | |
2654 | __owur SSL_TICKET_STATUS tls_decrypt_ticket(SSL *s, const unsigned char *etick, | |
2655 | size_t eticklen, | |
2656 | const unsigned char *sess_id, | |
2657 | size_t sesslen, SSL_SESSION **psess); | |
2658 | ||
2659 | __owur int tls_use_ticket(SSL *s); | |
2660 | ||
2661 | void ssl_set_sig_mask(uint32_t *pmask_a, SSL *s, int op); | |
2662 | ||
2663 | __owur int tls1_set_sigalgs_list(CERT *c, const char *str, int client); | |
2664 | __owur int tls1_set_raw_sigalgs(CERT *c, const uint16_t *psigs, size_t salglen, | |
2665 | int client); | |
2666 | __owur int tls1_set_sigalgs(CERT *c, const int *salg, size_t salglen, | |
2667 | int client); | |
2668 | int tls1_check_chain(SSL *s, X509 *x, EVP_PKEY *pk, STACK_OF(X509) *chain, | |
2669 | int idx); | |
2670 | void tls1_set_cert_validity(SSL *s); | |
2671 | ||
2672 | # ifndef OPENSSL_NO_CT | |
2673 | __owur int ssl_validate_ct(SSL *s); | |
2674 | # endif | |
2675 | ||
2676 | # ifndef OPENSSL_NO_DH | |
2677 | __owur DH *ssl_get_auto_dh(SSL *s); | |
2678 | # endif | |
2679 | ||
2680 | __owur int ssl_security_cert(SSL *s, SSL_CTX *ctx, X509 *x, int vfy, int is_ee); | |
2681 | __owur int ssl_security_cert_chain(SSL *s, STACK_OF(X509) *sk, X509 *ex, | |
2682 | int vfy); | |
2683 | ||
2684 | int tls_choose_sigalg(SSL *s, int fatalerrs); | |
2685 | ||
2686 | __owur EVP_MD_CTX *ssl_replace_hash(EVP_MD_CTX **hash, const EVP_MD *md); | |
2687 | void ssl_clear_hash_ctx(EVP_MD_CTX **hash); | |
2688 | __owur long ssl_get_algorithm2(SSL *s); | |
2689 | __owur int tls12_copy_sigalgs(SSL *s, WPACKET *pkt, | |
2690 | const uint16_t *psig, size_t psiglen); | |
2691 | __owur int tls1_save_u16(PACKET *pkt, uint16_t **pdest, size_t *pdestlen); | |
2692 | __owur int tls1_save_sigalgs(SSL *s, PACKET *pkt, int cert); | |
2693 | __owur int tls1_process_sigalgs(SSL *s); | |
2694 | __owur int tls1_set_peer_legacy_sigalg(SSL *s, const EVP_PKEY *pkey); | |
2695 | __owur int tls1_lookup_md(SSL_CTX *ctx, const SIGALG_LOOKUP *lu, | |
2696 | const EVP_MD **pmd); | |
2697 | __owur size_t tls12_get_psigalgs(SSL *s, int sent, const uint16_t **psigs); | |
2698 | # ifndef OPENSSL_NO_EC | |
2699 | __owur int tls_check_sigalg_curve(const SSL *s, int curve); | |
2700 | # endif | |
2701 | __owur int tls12_check_peer_sigalg(SSL *s, uint16_t, EVP_PKEY *pkey); | |
2702 | __owur int ssl_set_client_disabled(SSL *s); | |
2703 | __owur int ssl_cipher_disabled(const SSL *s, const SSL_CIPHER *c, int op, int echde); | |
2704 | ||
2705 | __owur int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, | |
2706 | size_t *hashlen); | |
2707 | __owur const EVP_MD *ssl_md(SSL_CTX *ctx, int idx); | |
2708 | __owur const EVP_MD *ssl_handshake_md(SSL *s); | |
2709 | __owur const EVP_MD *ssl_prf_md(SSL *s); | |
2710 | ||
2711 | /* | |
2712 | * ssl_log_rsa_client_key_exchange logs |premaster| to the SSL_CTX associated | |
2713 | * with |ssl|, if logging is enabled. It returns one on success and zero on | |
2714 | * failure. The entry is identified by the first 8 bytes of | |
2715 | * |encrypted_premaster|. | |
2716 | */ | |
2717 | __owur int ssl_log_rsa_client_key_exchange(SSL *ssl, | |
2718 | const uint8_t *encrypted_premaster, | |
2719 | size_t encrypted_premaster_len, | |
2720 | const uint8_t *premaster, | |
2721 | size_t premaster_len); | |
2722 | ||
2723 | /* | |
2724 | * ssl_log_secret logs |secret| to the SSL_CTX associated with |ssl|, if | |
2725 | * logging is available. It returns one on success and zero on failure. It tags | |
2726 | * the entry with |label|. | |
2727 | */ | |
2728 | __owur int ssl_log_secret(SSL *ssl, const char *label, | |
2729 | const uint8_t *secret, size_t secret_len); | |
2730 | ||
2731 | #define MASTER_SECRET_LABEL "CLIENT_RANDOM" | |
2732 | #define CLIENT_EARLY_LABEL "CLIENT_EARLY_TRAFFIC_SECRET" | |
2733 | #define CLIENT_HANDSHAKE_LABEL "CLIENT_HANDSHAKE_TRAFFIC_SECRET" | |
2734 | #define SERVER_HANDSHAKE_LABEL "SERVER_HANDSHAKE_TRAFFIC_SECRET" | |
2735 | #define CLIENT_APPLICATION_LABEL "CLIENT_TRAFFIC_SECRET_0" | |
2736 | #define SERVER_APPLICATION_LABEL "SERVER_TRAFFIC_SECRET_0" | |
2737 | #define EARLY_EXPORTER_SECRET_LABEL "EARLY_EXPORTER_SECRET" | |
2738 | #define EXPORTER_SECRET_LABEL "EXPORTER_SECRET" | |
2739 | ||
2740 | /* s3_cbc.c */ | |
2741 | __owur char ssl3_cbc_record_digest_supported(const EVP_MD_CTX *ctx); | |
2742 | __owur int ssl3_cbc_digest_record(SSL *s, | |
2743 | const EVP_MD_CTX *ctx, | |
2744 | unsigned char *md_out, | |
2745 | size_t *md_out_size, | |
2746 | const unsigned char header[13], | |
2747 | const unsigned char *data, | |
2748 | size_t data_plus_mac_size, | |
2749 | size_t data_plus_mac_plus_padding_size, | |
2750 | const unsigned char *mac_secret, | |
2751 | size_t mac_secret_length, char is_sslv3); | |
2752 | ||
2753 | __owur int srp_generate_server_master_secret(SSL *s); | |
2754 | __owur int srp_generate_client_master_secret(SSL *s); | |
2755 | __owur int srp_verify_server_param(SSL *s); | |
2756 | ||
2757 | /* statem/statem_srvr.c */ | |
2758 | ||
2759 | __owur int send_certificate_request(SSL *s); | |
2760 | ||
2761 | /* statem/extensions_cust.c */ | |
2762 | ||
2763 | custom_ext_method *custom_ext_find(const custom_ext_methods *exts, | |
2764 | ENDPOINT role, unsigned int ext_type, | |
2765 | size_t *idx); | |
2766 | ||
2767 | void custom_ext_init(custom_ext_methods *meths); | |
2768 | ||
2769 | __owur int custom_ext_parse(SSL *s, unsigned int context, unsigned int ext_type, | |
2770 | const unsigned char *ext_data, size_t ext_size, | |
2771 | X509 *x, size_t chainidx); | |
2772 | __owur int custom_ext_add(SSL *s, int context, WPACKET *pkt, X509 *x, | |
2773 | size_t chainidx, int maxversion); | |
2774 | ||
2775 | __owur int custom_exts_copy(custom_ext_methods *dst, | |
2776 | const custom_ext_methods *src); | |
2777 | __owur int custom_exts_copy_flags(custom_ext_methods *dst, | |
2778 | const custom_ext_methods *src); | |
2779 | void custom_exts_free(custom_ext_methods *exts); | |
2780 | ||
2781 | void ssl_comp_free_compression_methods_int(void); | |
2782 | ||
2783 | /* ssl_mcnf.c */ | |
2784 | void ssl_ctx_system_config(SSL_CTX *ctx); | |
2785 | ||
2786 | const EVP_CIPHER *ssl_evp_cipher_fetch(OPENSSL_CTX *libctx, | |
2787 | int nid, | |
2788 | const char *properties); | |
2789 | int ssl_evp_cipher_up_ref(const EVP_CIPHER *cipher); | |
2790 | void ssl_evp_cipher_free(const EVP_CIPHER *cipher); | |
2791 | const EVP_MD *ssl_evp_md_fetch(OPENSSL_CTX *libctx, | |
2792 | int nid, | |
2793 | const char *properties); | |
2794 | int ssl_evp_md_up_ref(const EVP_MD *md); | |
2795 | void ssl_evp_md_free(const EVP_MD *md); | |
2796 | ||
2797 | ||
2798 | # else /* OPENSSL_UNIT_TEST */ | |
2799 | ||
2800 | # define ssl_init_wbio_buffer SSL_test_functions()->p_ssl_init_wbio_buffer | |
2801 | # define ssl3_setup_buffers SSL_test_functions()->p_ssl3_setup_buffers | |
2802 | ||
2803 | # endif | |
2804 | #endif |