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846e33c7 | 1 | /* |
4333b89f | 2 | * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved. |
aa8f3d76 | 3 | * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved |
c80149d9 | 4 | * Copyright 2005 Nokia. All rights reserved. |
675f605d | 5 | * |
2c18d164 | 6 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
846e33c7 RS |
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 | |
675f605d | 10 | */ |
846e33c7 | 11 | |
d02b48c6 | 12 | #include <stdio.h> |
5fd1478d | 13 | #include <ctype.h> |
ec577822 | 14 | #include <openssl/objects.h> |
3c27208f RS |
15 | #include <openssl/comp.h> |
16 | #include <openssl/engine.h> | |
5c4328f0 | 17 | #include <openssl/crypto.h> |
a53b5be6 | 18 | #include <openssl/conf.h> |
77359d22 | 19 | #include <openssl/trace.h> |
677963e5 | 20 | #include "internal/nelem.h" |
706457b7 | 21 | #include "ssl_local.h" |
c2e4e5d2 | 22 | #include "internal/thread_once.h" |
67dc995e | 23 | #include "internal/cryptlib.h" |
d02b48c6 | 24 | |
98c9ce2f DSH |
25 | /* NB: make sure indices in these tables match values above */ |
26 | ||
27 | typedef struct { | |
90d9e49a | 28 | uint32_t mask; |
98c9ce2f DSH |
29 | int nid; |
30 | } ssl_cipher_table; | |
31 | ||
32 | /* Table of NIDs for each cipher */ | |
33 | static const ssl_cipher_table ssl_cipher_table_cipher[SSL_ENC_NUM_IDX] = { | |
34 | {SSL_DES, NID_des_cbc}, /* SSL_ENC_DES_IDX 0 */ | |
35 | {SSL_3DES, NID_des_ede3_cbc}, /* SSL_ENC_3DES_IDX 1 */ | |
36 | {SSL_RC4, NID_rc4}, /* SSL_ENC_RC4_IDX 2 */ | |
37 | {SSL_RC2, NID_rc2_cbc}, /* SSL_ENC_RC2_IDX 3 */ | |
38 | {SSL_IDEA, NID_idea_cbc}, /* SSL_ENC_IDEA_IDX 4 */ | |
39 | {SSL_eNULL, NID_undef}, /* SSL_ENC_NULL_IDX 5 */ | |
40 | {SSL_AES128, NID_aes_128_cbc}, /* SSL_ENC_AES128_IDX 6 */ | |
41 | {SSL_AES256, NID_aes_256_cbc}, /* SSL_ENC_AES256_IDX 7 */ | |
42 | {SSL_CAMELLIA128, NID_camellia_128_cbc}, /* SSL_ENC_CAMELLIA128_IDX 8 */ | |
43 | {SSL_CAMELLIA256, NID_camellia_256_cbc}, /* SSL_ENC_CAMELLIA256_IDX 9 */ | |
44 | {SSL_eGOST2814789CNT, NID_gost89_cnt}, /* SSL_ENC_GOST89_IDX 10 */ | |
45 | {SSL_SEED, NID_seed_cbc}, /* SSL_ENC_SEED_IDX 11 */ | |
46 | {SSL_AES128GCM, NID_aes_128_gcm}, /* SSL_ENC_AES128GCM_IDX 12 */ | |
e75c5a79 DSH |
47 | {SSL_AES256GCM, NID_aes_256_gcm}, /* SSL_ENC_AES256GCM_IDX 13 */ |
48 | {SSL_AES128CCM, NID_aes_128_ccm}, /* SSL_ENC_AES128CCM_IDX 14 */ | |
3d3701ea DSH |
49 | {SSL_AES256CCM, NID_aes_256_ccm}, /* SSL_ENC_AES256CCM_IDX 15 */ |
50 | {SSL_AES128CCM8, NID_aes_128_ccm}, /* SSL_ENC_AES128CCM8_IDX 16 */ | |
e44380a9 | 51 | {SSL_AES256CCM8, NID_aes_256_ccm}, /* SSL_ENC_AES256CCM8_IDX 17 */ |
bc326738 JS |
52 | {SSL_eGOST2814789CNT12, NID_gost89_cnt_12}, /* SSL_ENC_GOST8912_IDX 18 */ |
53 | {SSL_CHACHA20POLY1305, NID_chacha20_poly1305}, /* SSL_ENC_CHACHA_IDX 19 */ | |
54 | {SSL_ARIA128GCM, NID_aria_128_gcm}, /* SSL_ENC_ARIA128GCM_IDX 20 */ | |
55 | {SSL_ARIA256GCM, NID_aria_256_gcm}, /* SSL_ENC_ARIA256GCM_IDX 21 */ | |
5a5530a2 DB |
56 | {SSL_MAGMA, NID_magma_ctr_acpkm}, /* SSL_ENC_MAGMA_IDX */ |
57 | {SSL_KUZNYECHIK, NID_kuznyechik_ctr_acpkm}, /* SSL_ENC_KUZNYECHIK_IDX */ | |
98c9ce2f DSH |
58 | }; |
59 | ||
0f113f3e MC |
60 | #define SSL_COMP_NULL_IDX 0 |
61 | #define SSL_COMP_ZLIB_IDX 1 | |
62 | #define SSL_COMP_NUM_IDX 2 | |
63 | ||
64 | static STACK_OF(SSL_COMP) *ssl_comp_methods = NULL; | |
65 | ||
e4ad0763 | 66 | #ifndef OPENSSL_NO_COMP |
16203f7b | 67 | static CRYPTO_ONCE ssl_load_builtin_comp_once = CRYPTO_ONCE_STATIC_INIT; |
e4ad0763 | 68 | #endif |
16203f7b | 69 | |
98c9ce2f DSH |
70 | /* NB: make sure indices in this table matches values above */ |
71 | static const ssl_cipher_table ssl_cipher_table_mac[SSL_MD_NUM_IDX] = { | |
72 | {SSL_MD5, NID_md5}, /* SSL_MD_MD5_IDX 0 */ | |
73 | {SSL_SHA1, NID_sha1}, /* SSL_MD_SHA1_IDX 1 */ | |
74 | {SSL_GOST94, NID_id_GostR3411_94}, /* SSL_MD_GOST94_IDX 2 */ | |
75 | {SSL_GOST89MAC, NID_id_Gost28147_89_MAC}, /* SSL_MD_GOST89MAC_IDX 3 */ | |
76 | {SSL_SHA256, NID_sha256}, /* SSL_MD_SHA256_IDX 4 */ | |
e44380a9 | 77 | {SSL_SHA384, NID_sha384}, /* SSL_MD_SHA384_IDX 5 */ |
a230b26e EK |
78 | {SSL_GOST12_256, NID_id_GostR3411_2012_256}, /* SSL_MD_GOST12_256_IDX 6 */ |
79 | {SSL_GOST89MAC12, NID_gost_mac_12}, /* SSL_MD_GOST89MAC12_IDX 7 */ | |
80 | {SSL_GOST12_512, NID_id_GostR3411_2012_512}, /* SSL_MD_GOST12_512_IDX 8 */ | |
7afd2312 DSH |
81 | {0, NID_md5_sha1}, /* SSL_MD_MD5_SHA1_IDX 9 */ |
82 | {0, NID_sha224}, /* SSL_MD_SHA224_IDX 10 */ | |
5a5530a2 DB |
83 | {0, NID_sha512}, /* SSL_MD_SHA512_IDX 11 */ |
84 | {SSL_MAGMAOMAC, NID_magma_mac}, /* sSL_MD_MAGMAOMAC_IDX */ | |
85 | {SSL_KUZNYECHIKOMAC, NID_kuznyechik_mac} /* SSL_MD_KUZNYECHIKOMAC_IDX */ | |
98c9ce2f DSH |
86 | }; |
87 | ||
a230b26e | 88 | /* *INDENT-OFF* */ |
3ec13237 | 89 | static const ssl_cipher_table ssl_cipher_table_kx[] = { |
a230b26e EK |
90 | {SSL_kRSA, NID_kx_rsa}, |
91 | {SSL_kECDHE, NID_kx_ecdhe}, | |
92 | {SSL_kDHE, NID_kx_dhe}, | |
93 | {SSL_kECDHEPSK, NID_kx_ecdhe_psk}, | |
94 | {SSL_kDHEPSK, NID_kx_dhe_psk}, | |
95 | {SSL_kRSAPSK, NID_kx_rsa_psk}, | |
96 | {SSL_kPSK, NID_kx_psk}, | |
97 | {SSL_kSRP, NID_kx_srp}, | |
7114af30 | 98 | {SSL_kGOST, NID_kx_gost}, |
5a5530a2 | 99 | {SSL_kGOST18, NID_kx_gost18}, |
7114af30 | 100 | {SSL_kANY, NID_kx_any} |
3ec13237 TS |
101 | }; |
102 | ||
103 | static const ssl_cipher_table ssl_cipher_table_auth[] = { | |
a230b26e EK |
104 | {SSL_aRSA, NID_auth_rsa}, |
105 | {SSL_aECDSA, NID_auth_ecdsa}, | |
106 | {SSL_aPSK, NID_auth_psk}, | |
107 | {SSL_aDSS, NID_auth_dss}, | |
108 | {SSL_aGOST01, NID_auth_gost01}, | |
109 | {SSL_aGOST12, NID_auth_gost12}, | |
110 | {SSL_aSRP, NID_auth_srp}, | |
7114af30 DSH |
111 | {SSL_aNULL, NID_auth_null}, |
112 | {SSL_aANY, NID_auth_any} | |
3ec13237 | 113 | }; |
a230b26e | 114 | /* *INDENT-ON* */ |
3ec13237 | 115 | |
98c9ce2f DSH |
116 | /* Utility function for table lookup */ |
117 | static int ssl_cipher_info_find(const ssl_cipher_table * table, | |
90d9e49a | 118 | size_t table_cnt, uint32_t mask) |
98c9ce2f DSH |
119 | { |
120 | size_t i; | |
121 | for (i = 0; i < table_cnt; i++, table++) { | |
122 | if (table->mask == mask) | |
348240c6 | 123 | return (int)i; |
98c9ce2f DSH |
124 | } |
125 | return -1; | |
126 | } | |
127 | ||
128 | #define ssl_cipher_info_lookup(table, x) \ | |
b6eb9827 | 129 | ssl_cipher_info_find(table, OSSL_NELEM(table), x) |
98c9ce2f | 130 | |
0f113f3e MC |
131 | /* |
132 | * PKEY_TYPE for GOST89MAC is known in advance, but, because implementation | |
133 | * is engine-provided, we'll fill it only if corresponding EVP_PKEY_METHOD is | |
134 | * found | |
135 | */ | |
53d85372 | 136 | static const int default_mac_pkey_id[SSL_MD_NUM_IDX] = { |
e44380a9 | 137 | /* MD5, SHA, GOST94, MAC89 */ |
0f113f3e | 138 | EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef, |
e44380a9 DB |
139 | /* SHA256, SHA384, GOST2012_256, MAC89-12 */ |
140 | EVP_PKEY_HMAC, EVP_PKEY_HMAC, EVP_PKEY_HMAC, NID_undef, | |
141 | /* GOST2012_512 */ | |
142 | EVP_PKEY_HMAC, | |
5a5530a2 DB |
143 | /* MD5/SHA1, SHA224, SHA512, MAGMAOMAC, KUZNYECHIKOMAC */ |
144 | NID_undef, NID_undef, NID_undef, NID_undef, NID_undef | |
0f113f3e MC |
145 | }; |
146 | ||
0f113f3e MC |
147 | #define CIPHER_ADD 1 |
148 | #define CIPHER_KILL 2 | |
149 | #define CIPHER_DEL 3 | |
150 | #define CIPHER_ORD 4 | |
151 | #define CIPHER_SPECIAL 5 | |
a556f342 EK |
152 | /* |
153 | * Bump the ciphers to the top of the list. | |
154 | * This rule isn't currently supported by the public cipherstring API. | |
155 | */ | |
156 | #define CIPHER_BUMP 6 | |
0f113f3e MC |
157 | |
158 | typedef struct cipher_order_st { | |
159 | const SSL_CIPHER *cipher; | |
160 | int active; | |
161 | int dead; | |
162 | struct cipher_order_st *next, *prev; | |
163 | } CIPHER_ORDER; | |
164 | ||
165 | static const SSL_CIPHER cipher_aliases[] = { | |
166 | /* "ALL" doesn't include eNULL (must be specifically enabled) */ | |
bbb4ceb8 | 167 | {0, SSL_TXT_ALL, NULL, 0, 0, 0, ~SSL_eNULL}, |
0f113f3e | 168 | /* "COMPLEMENTOFALL" */ |
bbb4ceb8 | 169 | {0, SSL_TXT_CMPALL, NULL, 0, 0, 0, SSL_eNULL}, |
0f113f3e MC |
170 | |
171 | /* | |
172 | * "COMPLEMENTOFDEFAULT" (does *not* include ciphersuites not found in | |
173 | * ALL!) | |
174 | */ | |
bbb4ceb8 | 175 | {0, SSL_TXT_CMPDEF, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_NOT_DEFAULT}, |
0f113f3e MC |
176 | |
177 | /* | |
178 | * key exchange aliases (some of those using only a single bit here | |
179 | * combine multiple key exchange algs according to the RFCs, e.g. kDHE | |
180 | * combines DHE_DSS and DHE_RSA) | |
181 | */ | |
bbb4ceb8 | 182 | {0, SSL_TXT_kRSA, NULL, 0, SSL_kRSA}, |
0f113f3e | 183 | |
bbb4ceb8 PY |
184 | {0, SSL_TXT_kEDH, NULL, 0, SSL_kDHE}, |
185 | {0, SSL_TXT_kDHE, NULL, 0, SSL_kDHE}, | |
186 | {0, SSL_TXT_DH, NULL, 0, SSL_kDHE}, | |
0f113f3e | 187 | |
bbb4ceb8 PY |
188 | {0, SSL_TXT_kEECDH, NULL, 0, SSL_kECDHE}, |
189 | {0, SSL_TXT_kECDHE, NULL, 0, SSL_kECDHE}, | |
190 | {0, SSL_TXT_ECDH, NULL, 0, SSL_kECDHE}, | |
0f113f3e | 191 | |
bbb4ceb8 PY |
192 | {0, SSL_TXT_kPSK, NULL, 0, SSL_kPSK}, |
193 | {0, SSL_TXT_kRSAPSK, NULL, 0, SSL_kRSAPSK}, | |
194 | {0, SSL_TXT_kECDHEPSK, NULL, 0, SSL_kECDHEPSK}, | |
195 | {0, SSL_TXT_kDHEPSK, NULL, 0, SSL_kDHEPSK}, | |
196 | {0, SSL_TXT_kSRP, NULL, 0, SSL_kSRP}, | |
197 | {0, SSL_TXT_kGOST, NULL, 0, SSL_kGOST}, | |
5a5530a2 | 198 | {0, SSL_TXT_kGOST18, NULL, 0, SSL_kGOST18}, |
0f113f3e MC |
199 | |
200 | /* server authentication aliases */ | |
bbb4ceb8 PY |
201 | {0, SSL_TXT_aRSA, NULL, 0, 0, SSL_aRSA}, |
202 | {0, SSL_TXT_aDSS, NULL, 0, 0, SSL_aDSS}, | |
203 | {0, SSL_TXT_DSS, NULL, 0, 0, SSL_aDSS}, | |
204 | {0, SSL_TXT_aNULL, NULL, 0, 0, SSL_aNULL}, | |
205 | {0, SSL_TXT_aECDSA, NULL, 0, 0, SSL_aECDSA}, | |
206 | {0, SSL_TXT_ECDSA, NULL, 0, 0, SSL_aECDSA}, | |
207 | {0, SSL_TXT_aPSK, NULL, 0, 0, SSL_aPSK}, | |
208 | {0, SSL_TXT_aGOST01, NULL, 0, 0, SSL_aGOST01}, | |
209 | {0, SSL_TXT_aGOST12, NULL, 0, 0, SSL_aGOST12}, | |
210 | {0, SSL_TXT_aGOST, NULL, 0, 0, SSL_aGOST01 | SSL_aGOST12}, | |
211 | {0, SSL_TXT_aSRP, NULL, 0, 0, SSL_aSRP}, | |
0f113f3e MC |
212 | |
213 | /* aliases combining key exchange and server authentication */ | |
bbb4ceb8 PY |
214 | {0, SSL_TXT_EDH, NULL, 0, SSL_kDHE, ~SSL_aNULL}, |
215 | {0, SSL_TXT_DHE, NULL, 0, SSL_kDHE, ~SSL_aNULL}, | |
216 | {0, SSL_TXT_EECDH, NULL, 0, SSL_kECDHE, ~SSL_aNULL}, | |
217 | {0, SSL_TXT_ECDHE, NULL, 0, SSL_kECDHE, ~SSL_aNULL}, | |
218 | {0, SSL_TXT_NULL, NULL, 0, 0, 0, SSL_eNULL}, | |
219 | {0, SSL_TXT_RSA, NULL, 0, SSL_kRSA, SSL_aRSA}, | |
220 | {0, SSL_TXT_ADH, NULL, 0, SSL_kDHE, SSL_aNULL}, | |
221 | {0, SSL_TXT_AECDH, NULL, 0, SSL_kECDHE, SSL_aNULL}, | |
222 | {0, SSL_TXT_PSK, NULL, 0, SSL_PSK}, | |
223 | {0, SSL_TXT_SRP, NULL, 0, SSL_kSRP}, | |
0f113f3e MC |
224 | |
225 | /* symmetric encryption aliases */ | |
bbb4ceb8 PY |
226 | {0, SSL_TXT_3DES, NULL, 0, 0, 0, SSL_3DES}, |
227 | {0, SSL_TXT_RC4, NULL, 0, 0, 0, SSL_RC4}, | |
228 | {0, SSL_TXT_RC2, NULL, 0, 0, 0, SSL_RC2}, | |
229 | {0, SSL_TXT_IDEA, NULL, 0, 0, 0, SSL_IDEA}, | |
230 | {0, SSL_TXT_SEED, NULL, 0, 0, 0, SSL_SEED}, | |
231 | {0, SSL_TXT_eNULL, NULL, 0, 0, 0, SSL_eNULL}, | |
5a5530a2 DB |
232 | {0, SSL_TXT_GOST, NULL, 0, 0, 0, |
233 | SSL_eGOST2814789CNT | SSL_eGOST2814789CNT12 | SSL_MAGMA | SSL_KUZNYECHIK}, | |
bbb4ceb8 | 234 | {0, SSL_TXT_AES128, NULL, 0, 0, 0, |
e5f969a8 | 235 | SSL_AES128 | SSL_AES128GCM | SSL_AES128CCM | SSL_AES128CCM8}, |
bbb4ceb8 | 236 | {0, SSL_TXT_AES256, NULL, 0, 0, 0, |
e5f969a8 | 237 | SSL_AES256 | SSL_AES256GCM | SSL_AES256CCM | SSL_AES256CCM8}, |
bbb4ceb8 PY |
238 | {0, SSL_TXT_AES, NULL, 0, 0, 0, SSL_AES}, |
239 | {0, SSL_TXT_AES_GCM, NULL, 0, 0, 0, SSL_AES128GCM | SSL_AES256GCM}, | |
240 | {0, SSL_TXT_AES_CCM, NULL, 0, 0, 0, | |
e5f969a8 | 241 | SSL_AES128CCM | SSL_AES256CCM | SSL_AES128CCM8 | SSL_AES256CCM8}, |
bbb4ceb8 PY |
242 | {0, SSL_TXT_AES_CCM_8, NULL, 0, 0, 0, SSL_AES128CCM8 | SSL_AES256CCM8}, |
243 | {0, SSL_TXT_CAMELLIA128, NULL, 0, 0, 0, SSL_CAMELLIA128}, | |
244 | {0, SSL_TXT_CAMELLIA256, NULL, 0, 0, 0, SSL_CAMELLIA256}, | |
245 | {0, SSL_TXT_CAMELLIA, NULL, 0, 0, 0, SSL_CAMELLIA}, | |
246 | {0, SSL_TXT_CHACHA20, NULL, 0, 0, 0, SSL_CHACHA20}, | |
98278b96 | 247 | {0, SSL_TXT_GOST2012_GOST8912_GOST8912, NULL, 0, 0, 0, SSL_eGOST2814789CNT12}, |
0f113f3e | 248 | |
ea78d1ec | 249 | {0, SSL_TXT_ARIA, NULL, 0, 0, 0, SSL_ARIA}, |
bc326738 JS |
250 | {0, SSL_TXT_ARIA_GCM, NULL, 0, 0, 0, SSL_ARIA128GCM | SSL_ARIA256GCM}, |
251 | {0, SSL_TXT_ARIA128, NULL, 0, 0, 0, SSL_ARIA128GCM}, | |
252 | {0, SSL_TXT_ARIA256, NULL, 0, 0, 0, SSL_ARIA256GCM}, | |
c1fd005b | 253 | {0, SSL_TXT_CBC, NULL, 0, 0, 0, SSL_CBC}, |
bc326738 | 254 | |
0f113f3e | 255 | /* MAC aliases */ |
bbb4ceb8 PY |
256 | {0, SSL_TXT_MD5, NULL, 0, 0, 0, 0, SSL_MD5}, |
257 | {0, SSL_TXT_SHA1, NULL, 0, 0, 0, 0, SSL_SHA1}, | |
258 | {0, SSL_TXT_SHA, NULL, 0, 0, 0, 0, SSL_SHA1}, | |
259 | {0, SSL_TXT_GOST94, NULL, 0, 0, 0, 0, SSL_GOST94}, | |
260 | {0, SSL_TXT_GOST89MAC, NULL, 0, 0, 0, 0, SSL_GOST89MAC | SSL_GOST89MAC12}, | |
261 | {0, SSL_TXT_SHA256, NULL, 0, 0, 0, 0, SSL_SHA256}, | |
262 | {0, SSL_TXT_SHA384, NULL, 0, 0, 0, 0, SSL_SHA384}, | |
263 | {0, SSL_TXT_GOST12, NULL, 0, 0, 0, 0, SSL_GOST12_256}, | |
0f113f3e MC |
264 | |
265 | /* protocol version aliases */ | |
bbb4ceb8 PY |
266 | {0, SSL_TXT_SSLV3, NULL, 0, 0, 0, 0, 0, SSL3_VERSION}, |
267 | {0, SSL_TXT_TLSV1, NULL, 0, 0, 0, 0, 0, TLS1_VERSION}, | |
268 | {0, "TLSv1.0", NULL, 0, 0, 0, 0, 0, TLS1_VERSION}, | |
269 | {0, SSL_TXT_TLSV1_2, NULL, 0, 0, 0, 0, 0, TLS1_2_VERSION}, | |
0f113f3e | 270 | |
0f113f3e | 271 | /* strength classes */ |
bbb4ceb8 PY |
272 | {0, SSL_TXT_LOW, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_LOW}, |
273 | {0, SSL_TXT_MEDIUM, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_MEDIUM}, | |
274 | {0, SSL_TXT_HIGH, NULL, 0, 0, 0, 0, 0, 0, 0, 0, 0, SSL_HIGH}, | |
0f113f3e | 275 | /* FIPS 140-2 approved ciphersuite */ |
bbb4ceb8 | 276 | {0, SSL_TXT_FIPS, NULL, 0, 0, 0, ~SSL_eNULL, 0, 0, 0, 0, 0, SSL_FIPS}, |
0f113f3e MC |
277 | |
278 | /* "EDH-" aliases to "DHE-" labels (for backward compatibility) */ | |
bbb4ceb8 | 279 | {0, SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA, NULL, 0, |
e5f969a8 | 280 | SSL_kDHE, SSL_aDSS, SSL_3DES, SSL_SHA1, 0, 0, 0, 0, SSL_HIGH | SSL_FIPS}, |
bbb4ceb8 | 281 | {0, SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA, NULL, 0, |
e5f969a8 | 282 | SSL_kDHE, SSL_aRSA, SSL_3DES, SSL_SHA1, 0, 0, 0, 0, SSL_HIGH | SSL_FIPS}, |
0f113f3e MC |
283 | |
284 | }; | |
285 | ||
286 | /* | |
287 | * Search for public key algorithm with given name and return its pkey_id if | |
288 | * it is available. Otherwise return 0 | |
81025661 | 289 | */ |
70531c14 DSH |
290 | #ifdef OPENSSL_NO_ENGINE |
291 | ||
81025661 | 292 | static int get_optional_pkey_id(const char *pkey_name) |
0f113f3e MC |
293 | { |
294 | const EVP_PKEY_ASN1_METHOD *ameth; | |
295 | int pkey_id = 0; | |
296 | ameth = EVP_PKEY_asn1_find_str(NULL, pkey_name, -1); | |
5f3d93e4 | 297 | if (ameth && EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, |
bbb4ceb8 | 298 | ameth) > 0) |
5f3d93e4 | 299 | return pkey_id; |
5f3d93e4 | 300 | return 0; |
0f113f3e | 301 | } |
d02b48c6 | 302 | |
70531c14 DSH |
303 | #else |
304 | ||
305 | static int get_optional_pkey_id(const char *pkey_name) | |
0f113f3e MC |
306 | { |
307 | const EVP_PKEY_ASN1_METHOD *ameth; | |
308 | ENGINE *tmpeng = NULL; | |
309 | int pkey_id = 0; | |
310 | ameth = EVP_PKEY_asn1_find_str(&tmpeng, pkey_name, -1); | |
311 | if (ameth) { | |
5f3d93e4 MC |
312 | if (EVP_PKEY_asn1_get0_info(&pkey_id, NULL, NULL, NULL, NULL, |
313 | ameth) <= 0) | |
314 | pkey_id = 0; | |
0f113f3e | 315 | } |
301fcb28 | 316 | tls_engine_finish(tmpeng); |
0f113f3e MC |
317 | return pkey_id; |
318 | } | |
70531c14 DSH |
319 | |
320 | #endif | |
321 | ||
c8f6c28a | 322 | int ssl_load_ciphers(SSL_CTX *ctx) |
0f113f3e | 323 | { |
98c9ce2f DSH |
324 | size_t i; |
325 | const ssl_cipher_table *t; | |
05b4b85d MC |
326 | EVP_KEYEXCH *kex = NULL; |
327 | EVP_SIGNATURE *sig = NULL; | |
748f2546 | 328 | |
a68eee67 | 329 | ctx->disabled_enc_mask = 0; |
98c9ce2f | 330 | for (i = 0, t = ssl_cipher_table_cipher; i < SSL_ENC_NUM_IDX; i++, t++) { |
c8f6c28a MC |
331 | if (t->nid != NID_undef) { |
332 | const EVP_CIPHER *cipher | |
333 | = ssl_evp_cipher_fetch(ctx->libctx, t->nid, ctx->propq); | |
334 | ||
335 | ctx->ssl_cipher_methods[i] = cipher; | |
633d49c7 | 336 | if (cipher == NULL) |
a68eee67 | 337 | ctx->disabled_enc_mask |= t->mask; |
633d49c7 | 338 | } |
0f113f3e | 339 | } |
a68eee67 | 340 | ctx->disabled_mac_mask = 0; |
98c9ce2f | 341 | for (i = 0, t = ssl_cipher_table_mac; i < SSL_MD_NUM_IDX; i++, t++) { |
c8f6c28a MC |
342 | const EVP_MD *md |
343 | = ssl_evp_md_fetch(ctx->libctx, t->nid, ctx->propq); | |
344 | ||
345 | ctx->ssl_digest_methods[i] = md; | |
633d49c7 | 346 | if (md == NULL) { |
a68eee67 | 347 | ctx->disabled_mac_mask |= t->mask; |
633d49c7 | 348 | } else { |
ed576acd | 349 | int tmpsize = EVP_MD_get_size(md); |
380a522f MC |
350 | if (!ossl_assert(tmpsize >= 0)) |
351 | return 0; | |
c8f6c28a | 352 | ctx->ssl_mac_secret_size[i] = tmpsize; |
98c9ce2f DSH |
353 | } |
354 | } | |
633d49c7 | 355 | |
a68eee67 MC |
356 | ctx->disabled_mkey_mask = 0; |
357 | ctx->disabled_auth_mask = 0; | |
633d49c7 | 358 | |
05b4b85d MC |
359 | /* |
360 | * We ignore any errors from the fetches below. They are expected to fail | |
361 | * if theose algorithms are not available. | |
362 | */ | |
363 | ERR_set_mark(); | |
364 | sig = EVP_SIGNATURE_fetch(ctx->libctx, "DSA", ctx->propq); | |
365 | if (sig == NULL) | |
366 | ctx->disabled_auth_mask |= SSL_aDSS; | |
367 | else | |
368 | EVP_SIGNATURE_free(sig); | |
369 | kex = EVP_KEYEXCH_fetch(ctx->libctx, "DH", ctx->propq); | |
370 | if (kex == NULL) | |
371 | ctx->disabled_mkey_mask |= SSL_kDHE | SSL_kDHEPSK; | |
372 | else | |
373 | EVP_KEYEXCH_free(kex); | |
374 | kex = EVP_KEYEXCH_fetch(ctx->libctx, "ECDH", ctx->propq); | |
375 | if (kex == NULL) | |
376 | ctx->disabled_mkey_mask |= SSL_kECDHE | SSL_kECDHEPSK; | |
377 | else | |
378 | EVP_KEYEXCH_free(kex); | |
379 | sig = EVP_SIGNATURE_fetch(ctx->libctx, "ECDSA", ctx->propq); | |
380 | if (sig == NULL) | |
381 | ctx->disabled_auth_mask |= SSL_aECDSA; | |
382 | else | |
383 | EVP_SIGNATURE_free(sig); | |
384 | ERR_pop_to_mark(); | |
385 | ||
633d49c7 | 386 | #ifdef OPENSSL_NO_PSK |
a68eee67 MC |
387 | ctx->disabled_mkey_mask |= SSL_PSK; |
388 | ctx->disabled_auth_mask |= SSL_aPSK; | |
633d49c7 DSH |
389 | #endif |
390 | #ifdef OPENSSL_NO_SRP | |
a68eee67 | 391 | ctx->disabled_mkey_mask |= SSL_kSRP; |
633d49c7 DSH |
392 | #endif |
393 | ||
394 | /* | |
395 | * Check for presence of GOST 34.10 algorithms, and if they are not | |
396 | * present, disable appropriate auth and key exchange | |
397 | */ | |
53d85372 P |
398 | memcpy(ctx->ssl_mac_pkey_id, default_mac_pkey_id, |
399 | sizeof(ctx->ssl_mac_pkey_id)); | |
400 | ||
401 | ctx->ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX] = | |
402 | get_optional_pkey_id(SN_id_Gost28147_89_MAC); | |
403 | if (ctx->ssl_mac_pkey_id[SSL_MD_GOST89MAC_IDX]) | |
c8f6c28a | 404 | ctx->ssl_mac_secret_size[SSL_MD_GOST89MAC_IDX] = 32; |
bbb4ceb8 | 405 | else |
a68eee67 | 406 | ctx->disabled_mac_mask |= SSL_GOST89MAC; |
633d49c7 | 407 | |
53d85372 | 408 | ctx->ssl_mac_pkey_id[SSL_MD_GOST89MAC12_IDX] = |
5a5530a2 | 409 | get_optional_pkey_id(SN_gost_mac_12); |
53d85372 | 410 | if (ctx->ssl_mac_pkey_id[SSL_MD_GOST89MAC12_IDX]) |
c8f6c28a | 411 | ctx->ssl_mac_secret_size[SSL_MD_GOST89MAC12_IDX] = 32; |
bbb4ceb8 | 412 | else |
a68eee67 | 413 | ctx->disabled_mac_mask |= SSL_GOST89MAC12; |
e44380a9 | 414 | |
53d85372 | 415 | ctx->ssl_mac_pkey_id[SSL_MD_MAGMAOMAC_IDX] = |
5a5530a2 | 416 | get_optional_pkey_id(SN_magma_mac); |
53d85372 | 417 | if (ctx->ssl_mac_pkey_id[SSL_MD_MAGMAOMAC_IDX]) |
5a5530a2 DB |
418 | ctx->ssl_mac_secret_size[SSL_MD_MAGMAOMAC_IDX] = 32; |
419 | else | |
a68eee67 | 420 | ctx->disabled_mac_mask |= SSL_MAGMAOMAC; |
5a5530a2 | 421 | |
53d85372 | 422 | ctx->ssl_mac_pkey_id[SSL_MD_KUZNYECHIKOMAC_IDX] = |
5a5530a2 | 423 | get_optional_pkey_id(SN_kuznyechik_mac); |
53d85372 | 424 | if (ctx->ssl_mac_pkey_id[SSL_MD_KUZNYECHIKOMAC_IDX]) |
5a5530a2 DB |
425 | ctx->ssl_mac_secret_size[SSL_MD_KUZNYECHIKOMAC_IDX] = 32; |
426 | else | |
a68eee67 | 427 | ctx->disabled_mac_mask |= SSL_KUZNYECHIKOMAC; |
5a5530a2 DB |
428 | |
429 | if (!get_optional_pkey_id(SN_id_GostR3410_2001)) | |
a68eee67 | 430 | ctx->disabled_auth_mask |= SSL_aGOST01 | SSL_aGOST12; |
5a5530a2 | 431 | if (!get_optional_pkey_id(SN_id_GostR3410_2012_256)) |
a68eee67 | 432 | ctx->disabled_auth_mask |= SSL_aGOST12; |
5a5530a2 | 433 | if (!get_optional_pkey_id(SN_id_GostR3410_2012_512)) |
a68eee67 | 434 | ctx->disabled_auth_mask |= SSL_aGOST12; |
633d49c7 DSH |
435 | /* |
436 | * Disable GOST key exchange if no GOST signature algs are available * | |
437 | */ | |
a68eee67 | 438 | if ((ctx->disabled_auth_mask & (SSL_aGOST01 | SSL_aGOST12)) == |
a230b26e | 439 | (SSL_aGOST01 | SSL_aGOST12)) |
a68eee67 | 440 | ctx->disabled_mkey_mask |= SSL_kGOST; |
380a522f | 441 | |
a68eee67 MC |
442 | if ((ctx->disabled_auth_mask & SSL_aGOST12) == SSL_aGOST12) |
443 | ctx->disabled_mkey_mask |= SSL_kGOST18; | |
5a5530a2 | 444 | |
380a522f | 445 | return 1; |
0f113f3e MC |
446 | } |
447 | ||
09b6c2ef DSH |
448 | #ifndef OPENSSL_NO_COMP |
449 | ||
0f113f3e MC |
450 | static int sk_comp_cmp(const SSL_COMP *const *a, const SSL_COMP *const *b) |
451 | { | |
452 | return ((*a)->id - (*b)->id); | |
453 | } | |
7ba666fa | 454 | |
c2e4e5d2 | 455 | DEFINE_RUN_ONCE_STATIC(do_load_builtin_compressions) |
0f113f3e | 456 | { |
16203f7b AG |
457 | SSL_COMP *comp = NULL; |
458 | COMP_METHOD *method = COMP_zlib(); | |
459 | ||
16203f7b AG |
460 | ssl_comp_methods = sk_SSL_COMP_new(sk_comp_cmp); |
461 | ||
462 | if (COMP_get_type(method) != NID_undef && ssl_comp_methods != NULL) { | |
463 | comp = OPENSSL_malloc(sizeof(*comp)); | |
464 | if (comp != NULL) { | |
465 | comp->method = method; | |
466 | comp->id = SSL_COMP_ZLIB_IDX; | |
467 | comp->name = COMP_get_name(method); | |
468 | sk_SSL_COMP_push(ssl_comp_methods, comp); | |
469 | sk_SSL_COMP_sort(ssl_comp_methods); | |
0f113f3e MC |
470 | } |
471 | } | |
c2e4e5d2 | 472 | return 1; |
16203f7b | 473 | } |
0f113f3e | 474 | |
912c258f | 475 | static int load_builtin_compressions(void) |
16203f7b | 476 | { |
912c258f | 477 | return RUN_ONCE(&ssl_load_builtin_comp_once, do_load_builtin_compressions); |
0f113f3e | 478 | } |
09b6c2ef | 479 | #endif |
7ba666fa | 480 | |
9727f4e7 MC |
481 | int ssl_cipher_get_evp_cipher(SSL_CTX *ctx, const SSL_CIPHER *sslc, |
482 | const EVP_CIPHER **enc) | |
483 | { | |
484 | int i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, sslc->algorithm_enc); | |
485 | ||
486 | if (i == -1) { | |
487 | *enc = NULL; | |
488 | } else { | |
489 | if (i == SSL_ENC_NULL_IDX) { | |
490 | /* | |
491 | * We assume we don't care about this coming from an ENGINE so | |
492 | * just do a normal EVP_CIPHER_fetch instead of | |
493 | * ssl_evp_cipher_fetch() | |
494 | */ | |
495 | *enc = EVP_CIPHER_fetch(ctx->libctx, "NULL", ctx->propq); | |
496 | if (*enc == NULL) | |
497 | return 0; | |
498 | } else { | |
c2146b57 MC |
499 | const EVP_CIPHER *cipher = ctx->ssl_cipher_methods[i]; |
500 | ||
501 | if (cipher == NULL | |
502 | || !ssl_evp_cipher_up_ref(cipher)) | |
9727f4e7 MC |
503 | return 0; |
504 | *enc = ctx->ssl_cipher_methods[i]; | |
505 | } | |
506 | } | |
507 | return 1; | |
508 | } | |
509 | ||
c8f6c28a MC |
510 | int ssl_cipher_get_evp(SSL_CTX *ctx, const SSL_SESSION *s, |
511 | const EVP_CIPHER **enc, const EVP_MD **md, | |
512 | int *mac_pkey_type, size_t *mac_secret_size, | |
513 | SSL_COMP **comp, int use_etm) | |
0f113f3e MC |
514 | { |
515 | int i; | |
516 | const SSL_CIPHER *c; | |
517 | ||
518 | c = s->cipher; | |
519 | if (c == NULL) | |
bbb4ceb8 | 520 | return 0; |
0f113f3e MC |
521 | if (comp != NULL) { |
522 | SSL_COMP ctmp; | |
09b6c2ef | 523 | #ifndef OPENSSL_NO_COMP |
912c258f RL |
524 | if (!load_builtin_compressions()) { |
525 | /* | |
526 | * Currently don't care, since a failure only means that | |
527 | * ssl_comp_methods is NULL, which is perfectly OK | |
528 | */ | |
529 | } | |
09b6c2ef | 530 | #endif |
0f113f3e MC |
531 | *comp = NULL; |
532 | ctmp.id = s->compress_meth; | |
533 | if (ssl_comp_methods != NULL) { | |
534 | i = sk_SSL_COMP_find(ssl_comp_methods, &ctmp); | |
30eba7f3 DDO |
535 | if (i >= 0) |
536 | *comp = sk_SSL_COMP_value(ssl_comp_methods, i); | |
0f113f3e | 537 | } |
69f68237 | 538 | /* If were only interested in comp then return success */ |
61986d32 | 539 | if ((enc == NULL) && (md == NULL)) |
69f68237 | 540 | return 1; |
0f113f3e MC |
541 | } |
542 | ||
543 | if ((enc == NULL) || (md == NULL)) | |
69f68237 | 544 | return 0; |
0f113f3e | 545 | |
9727f4e7 MC |
546 | if (!ssl_cipher_get_evp_cipher(ctx, c, enc)) |
547 | return 0; | |
0f113f3e | 548 | |
98c9ce2f DSH |
549 | i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac); |
550 | if (i == -1) { | |
0f113f3e MC |
551 | *md = NULL; |
552 | if (mac_pkey_type != NULL) | |
553 | *mac_pkey_type = NID_undef; | |
554 | if (mac_secret_size != NULL) | |
555 | *mac_secret_size = 0; | |
556 | if (c->algorithm_mac == SSL_AEAD) | |
557 | mac_pkey_type = NULL; | |
558 | } else { | |
b740012f | 559 | const EVP_MD *digest = ctx->ssl_digest_methods[i]; |
560 | ||
561 | if (digest == NULL | |
562 | || !ssl_evp_md_up_ref(digest)) { | |
c8f6c28a MC |
563 | ssl_evp_cipher_free(*enc); |
564 | return 0; | |
565 | } | |
b740012f | 566 | *md = digest; |
0f113f3e | 567 | if (mac_pkey_type != NULL) |
53d85372 | 568 | *mac_pkey_type = ctx->ssl_mac_pkey_id[i]; |
0f113f3e | 569 | if (mac_secret_size != NULL) |
c8f6c28a | 570 | *mac_secret_size = ctx->ssl_mac_secret_size[i]; |
0f113f3e MC |
571 | } |
572 | ||
ed576acd TM |
573 | if ((*enc != NULL) |
574 | && (*md != NULL | |
575 | || (EVP_CIPHER_get_flags(*enc) & EVP_CIPH_FLAG_AEAD_CIPHER)) | |
0f113f3e | 576 | && (!mac_pkey_type || *mac_pkey_type != NID_undef)) { |
c8f6c28a | 577 | const EVP_CIPHER *evp = NULL; |
0f113f3e | 578 | |
c8f6c28a MC |
579 | if (use_etm |
580 | || s->ssl_version >> 8 != TLS1_VERSION_MAJOR | |
581 | || s->ssl_version < TLS1_VERSION) | |
0f113f3e MC |
582 | return 1; |
583 | ||
c8f6c28a MC |
584 | if (c->algorithm_enc == SSL_RC4 |
585 | && c->algorithm_mac == SSL_MD5) | |
586 | evp = ssl_evp_cipher_fetch(ctx->libctx, NID_rc4_hmac_md5, | |
587 | ctx->propq); | |
588 | else if (c->algorithm_enc == SSL_AES128 | |
589 | && c->algorithm_mac == SSL_SHA1) | |
590 | evp = ssl_evp_cipher_fetch(ctx->libctx, | |
591 | NID_aes_128_cbc_hmac_sha1, | |
592 | ctx->propq); | |
593 | else if (c->algorithm_enc == SSL_AES256 | |
594 | && c->algorithm_mac == SSL_SHA1) | |
595 | evp = ssl_evp_cipher_fetch(ctx->libctx, | |
596 | NID_aes_256_cbc_hmac_sha1, | |
597 | ctx->propq); | |
598 | else if (c->algorithm_enc == SSL_AES128 | |
599 | && c->algorithm_mac == SSL_SHA256) | |
600 | evp = ssl_evp_cipher_fetch(ctx->libctx, | |
601 | NID_aes_128_cbc_hmac_sha256, | |
602 | ctx->propq); | |
603 | else if (c->algorithm_enc == SSL_AES256 | |
604 | && c->algorithm_mac == SSL_SHA256) | |
605 | evp = ssl_evp_cipher_fetch(ctx->libctx, | |
606 | NID_aes_256_cbc_hmac_sha256, | |
607 | ctx->propq); | |
608 | ||
609 | if (evp != NULL) { | |
610 | ssl_evp_cipher_free(*enc); | |
611 | ssl_evp_md_free(*md); | |
612 | *enc = evp; | |
613 | *md = NULL; | |
614 | } | |
bbb4ceb8 | 615 | return 1; |
bbb4ceb8 | 616 | } |
c8f6c28a MC |
617 | |
618 | return 0; | |
0f113f3e MC |
619 | } |
620 | ||
c8f6c28a | 621 | const EVP_MD *ssl_md(SSL_CTX *ctx, int idx) |
81025661 | 622 | { |
28ba2541 DSH |
623 | idx &= SSL_HANDSHAKE_MAC_MASK; |
624 | if (idx < 0 || idx >= SSL_MD_NUM_IDX) | |
625 | return NULL; | |
c8f6c28a | 626 | return ctx->ssl_digest_methods[idx]; |
28ba2541 DSH |
627 | } |
628 | ||
38b051a1 | 629 | const EVP_MD *ssl_handshake_md(SSL_CONNECTION *s) |
28ba2541 | 630 | { |
38b051a1 | 631 | return ssl_md(SSL_CONNECTION_GET_CTX(s), ssl_get_algorithm2(s)); |
28ba2541 DSH |
632 | } |
633 | ||
38b051a1 | 634 | const EVP_MD *ssl_prf_md(SSL_CONNECTION *s) |
28ba2541 | 635 | { |
38b051a1 TM |
636 | return ssl_md(SSL_CONNECTION_GET_CTX(s), |
637 | ssl_get_algorithm2(s) >> TLS1_PRF_DGST_SHIFT); | |
81025661 DSH |
638 | } |
639 | ||
58964a49 | 640 | #define ITEM_SEP(a) \ |
0f113f3e | 641 | (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) |
58964a49 | 642 | |
6b691a5c | 643 | static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
0f113f3e MC |
644 | CIPHER_ORDER **tail) |
645 | { | |
646 | if (curr == *tail) | |
647 | return; | |
648 | if (curr == *head) | |
649 | *head = curr->next; | |
650 | if (curr->prev != NULL) | |
651 | curr->prev->next = curr->next; | |
652 | if (curr->next != NULL) | |
653 | curr->next->prev = curr->prev; | |
654 | (*tail)->next = curr; | |
655 | curr->prev = *tail; | |
656 | curr->next = NULL; | |
657 | *tail = curr; | |
658 | } | |
58964a49 | 659 | |
fd5bc65c | 660 | static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
0f113f3e MC |
661 | CIPHER_ORDER **tail) |
662 | { | |
663 | if (curr == *head) | |
664 | return; | |
665 | if (curr == *tail) | |
666 | *tail = curr->prev; | |
667 | if (curr->next != NULL) | |
668 | curr->next->prev = curr->prev; | |
669 | if (curr->prev != NULL) | |
670 | curr->prev->next = curr->next; | |
671 | (*head)->prev = curr; | |
672 | curr->next = *head; | |
673 | curr->prev = NULL; | |
674 | *head = curr; | |
675 | } | |
676 | ||
018e57c7 | 677 | static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, |
0f113f3e | 678 | int num_of_ciphers, |
90d9e49a DSH |
679 | uint32_t disabled_mkey, |
680 | uint32_t disabled_auth, | |
681 | uint32_t disabled_enc, | |
682 | uint32_t disabled_mac, | |
0f113f3e MC |
683 | CIPHER_ORDER *co_list, |
684 | CIPHER_ORDER **head_p, | |
685 | CIPHER_ORDER **tail_p) | |
686 | { | |
687 | int i, co_list_num; | |
688 | const SSL_CIPHER *c; | |
689 | ||
690 | /* | |
691 | * We have num_of_ciphers descriptions compiled in, depending on the | |
692 | * method selected (SSLv3, TLSv1 etc). | |
693 | * These will later be sorted in a linked list with at most num | |
694 | * entries. | |
695 | */ | |
696 | ||
697 | /* Get the initial list of ciphers */ | |
698 | co_list_num = 0; /* actual count of ciphers */ | |
699 | for (i = 0; i < num_of_ciphers; i++) { | |
700 | c = ssl_method->get_cipher(i); | |
701 | /* drop those that use any of that is not available */ | |
ca3895f0 KR |
702 | if (c == NULL || !c->valid) |
703 | continue; | |
ca3895f0 KR |
704 | if ((c->algorithm_mkey & disabled_mkey) || |
705 | (c->algorithm_auth & disabled_auth) || | |
706 | (c->algorithm_enc & disabled_enc) || | |
707 | (c->algorithm_mac & disabled_mac)) | |
708 | continue; | |
709 | if (((ssl_method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) == 0) && | |
710 | c->min_tls == 0) | |
711 | continue; | |
712 | if (((ssl_method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) != 0) && | |
713 | c->min_dtls == 0) | |
714 | continue; | |
715 | ||
716 | co_list[co_list_num].cipher = c; | |
717 | co_list[co_list_num].next = NULL; | |
718 | co_list[co_list_num].prev = NULL; | |
719 | co_list[co_list_num].active = 0; | |
720 | co_list_num++; | |
0f113f3e MC |
721 | } |
722 | ||
723 | /* | |
724 | * Prepare linked list from list entries | |
725 | */ | |
726 | if (co_list_num > 0) { | |
727 | co_list[0].prev = NULL; | |
728 | ||
729 | if (co_list_num > 1) { | |
730 | co_list[0].next = &co_list[1]; | |
731 | ||
732 | for (i = 1; i < co_list_num - 1; i++) { | |
733 | co_list[i].prev = &co_list[i - 1]; | |
734 | co_list[i].next = &co_list[i + 1]; | |
735 | } | |
736 | ||
737 | co_list[co_list_num - 1].prev = &co_list[co_list_num - 2]; | |
738 | } | |
739 | ||
740 | co_list[co_list_num - 1].next = NULL; | |
741 | ||
742 | *head_p = &co_list[0]; | |
743 | *tail_p = &co_list[co_list_num - 1]; | |
744 | } | |
745 | } | |
d02b48c6 | 746 | |
babb3798 | 747 | static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list, |
0f113f3e | 748 | int num_of_group_aliases, |
90d9e49a DSH |
749 | uint32_t disabled_mkey, |
750 | uint32_t disabled_auth, | |
751 | uint32_t disabled_enc, | |
752 | uint32_t disabled_mac, | |
0f113f3e MC |
753 | CIPHER_ORDER *head) |
754 | { | |
755 | CIPHER_ORDER *ciph_curr; | |
756 | const SSL_CIPHER **ca_curr; | |
757 | int i; | |
90d9e49a DSH |
758 | uint32_t mask_mkey = ~disabled_mkey; |
759 | uint32_t mask_auth = ~disabled_auth; | |
760 | uint32_t mask_enc = ~disabled_enc; | |
761 | uint32_t mask_mac = ~disabled_mac; | |
0f113f3e MC |
762 | |
763 | /* | |
764 | * First, add the real ciphers as already collected | |
765 | */ | |
766 | ciph_curr = head; | |
767 | ca_curr = ca_list; | |
768 | while (ciph_curr != NULL) { | |
769 | *ca_curr = ciph_curr->cipher; | |
770 | ca_curr++; | |
771 | ciph_curr = ciph_curr->next; | |
772 | } | |
773 | ||
774 | /* | |
775 | * Now we add the available ones from the cipher_aliases[] table. | |
776 | * They represent either one or more algorithms, some of which | |
777 | * in any affected category must be supported (set in enabled_mask), | |
778 | * or represent a cipher strength value (will be added in any case because algorithms=0). | |
779 | */ | |
780 | for (i = 0; i < num_of_group_aliases; i++) { | |
90d9e49a DSH |
781 | uint32_t algorithm_mkey = cipher_aliases[i].algorithm_mkey; |
782 | uint32_t algorithm_auth = cipher_aliases[i].algorithm_auth; | |
783 | uint32_t algorithm_enc = cipher_aliases[i].algorithm_enc; | |
784 | uint32_t algorithm_mac = cipher_aliases[i].algorithm_mac; | |
0f113f3e MC |
785 | |
786 | if (algorithm_mkey) | |
787 | if ((algorithm_mkey & mask_mkey) == 0) | |
788 | continue; | |
789 | ||
790 | if (algorithm_auth) | |
791 | if ((algorithm_auth & mask_auth) == 0) | |
792 | continue; | |
793 | ||
794 | if (algorithm_enc) | |
795 | if ((algorithm_enc & mask_enc) == 0) | |
796 | continue; | |
797 | ||
798 | if (algorithm_mac) | |
799 | if ((algorithm_mac & mask_mac) == 0) | |
800 | continue; | |
801 | ||
0f113f3e MC |
802 | *ca_curr = (SSL_CIPHER *)(cipher_aliases + i); |
803 | ca_curr++; | |
804 | } | |
805 | ||
806 | *ca_curr = NULL; /* end of list */ | |
807 | } | |
d02b48c6 | 808 | |
90d9e49a DSH |
809 | static void ssl_cipher_apply_rule(uint32_t cipher_id, uint32_t alg_mkey, |
810 | uint32_t alg_auth, uint32_t alg_enc, | |
3eb2aff4 | 811 | uint32_t alg_mac, int min_tls, |
90d9e49a DSH |
812 | uint32_t algo_strength, int rule, |
813 | int32_t strength_bits, CIPHER_ORDER **head_p, | |
0f113f3e MC |
814 | CIPHER_ORDER **tail_p) |
815 | { | |
816 | CIPHER_ORDER *head, *tail, *curr, *next, *last; | |
817 | const SSL_CIPHER *cp; | |
818 | int reverse = 0; | |
018e57c7 | 819 | |
1287dabd | 820 | OSSL_TRACE_BEGIN(TLS_CIPHER) { |
77359d22 RL |
821 | BIO_printf(trc_out, |
822 | "Applying rule %d with %08x/%08x/%08x/%08x/%08x %08x (%d)\n", | |
823 | rule, alg_mkey, alg_auth, alg_enc, alg_mac, min_tls, | |
824 | algo_strength, strength_bits); | |
825 | } | |
d02b48c6 | 826 | |
a556f342 | 827 | if (rule == CIPHER_DEL || rule == CIPHER_BUMP) |
a230b26e EK |
828 | reverse = 1; /* needed to maintain sorting between currently |
829 | * deleted ciphers */ | |
0f113f3e MC |
830 | |
831 | head = *head_p; | |
832 | tail = *tail_p; | |
833 | ||
834 | if (reverse) { | |
835 | next = tail; | |
836 | last = head; | |
837 | } else { | |
838 | next = head; | |
839 | last = tail; | |
840 | } | |
841 | ||
842 | curr = NULL; | |
843 | for (;;) { | |
844 | if (curr == last) | |
845 | break; | |
846 | ||
847 | curr = next; | |
848 | ||
849 | if (curr == NULL) | |
850 | break; | |
851 | ||
852 | next = reverse ? curr->prev : curr->next; | |
853 | ||
854 | cp = curr->cipher; | |
855 | ||
856 | /* | |
857 | * Selection criteria is either the value of strength_bits | |
858 | * or the algorithms used. | |
859 | */ | |
860 | if (strength_bits >= 0) { | |
861 | if (strength_bits != cp->strength_bits) | |
862 | continue; | |
863 | } else { | |
77359d22 RL |
864 | if (trc_out != NULL) { |
865 | BIO_printf(trc_out, | |
866 | "\nName: %s:" | |
867 | "\nAlgo = %08x/%08x/%08x/%08x/%08x Algo_strength = %08x\n", | |
868 | cp->name, cp->algorithm_mkey, cp->algorithm_auth, | |
869 | cp->algorithm_enc, cp->algorithm_mac, cp->min_tls, | |
870 | cp->algo_strength); | |
871 | } | |
0ced42e0 MC |
872 | if (cipher_id != 0 && (cipher_id != cp->id)) |
873 | continue; | |
0f113f3e MC |
874 | if (alg_mkey && !(alg_mkey & cp->algorithm_mkey)) |
875 | continue; | |
876 | if (alg_auth && !(alg_auth & cp->algorithm_auth)) | |
877 | continue; | |
878 | if (alg_enc && !(alg_enc & cp->algorithm_enc)) | |
879 | continue; | |
880 | if (alg_mac && !(alg_mac & cp->algorithm_mac)) | |
881 | continue; | |
3eb2aff4 | 882 | if (min_tls && (min_tls != cp->min_tls)) |
0f113f3e | 883 | continue; |
88a9614b KR |
884 | if ((algo_strength & SSL_STRONG_MASK) |
885 | && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength)) | |
0f113f3e | 886 | continue; |
c84f7f4a MC |
887 | if ((algo_strength & SSL_DEFAULT_MASK) |
888 | && !(algo_strength & SSL_DEFAULT_MASK & cp->algo_strength)) | |
889 | continue; | |
0f113f3e | 890 | } |
018e57c7 | 891 | |
77359d22 RL |
892 | if (trc_out != NULL) |
893 | BIO_printf(trc_out, "Action = %d\n", rule); | |
018e57c7 | 894 | |
0f113f3e MC |
895 | /* add the cipher if it has not been added yet. */ |
896 | if (rule == CIPHER_ADD) { | |
897 | /* reverse == 0 */ | |
898 | if (!curr->active) { | |
899 | ll_append_tail(&head, curr, &tail); | |
900 | curr->active = 1; | |
901 | } | |
902 | } | |
903 | /* Move the added cipher to this location */ | |
904 | else if (rule == CIPHER_ORD) { | |
905 | /* reverse == 0 */ | |
906 | if (curr->active) { | |
907 | ll_append_tail(&head, curr, &tail); | |
908 | } | |
909 | } else if (rule == CIPHER_DEL) { | |
910 | /* reverse == 1 */ | |
911 | if (curr->active) { | |
912 | /* | |
913 | * most recently deleted ciphersuites get best positions for | |
914 | * any future CIPHER_ADD (note that the CIPHER_DEL loop works | |
915 | * in reverse to maintain the order) | |
916 | */ | |
917 | ll_append_head(&head, curr, &tail); | |
918 | curr->active = 0; | |
919 | } | |
a556f342 EK |
920 | } else if (rule == CIPHER_BUMP) { |
921 | if (curr->active) | |
922 | ll_append_head(&head, curr, &tail); | |
0f113f3e MC |
923 | } else if (rule == CIPHER_KILL) { |
924 | /* reverse == 0 */ | |
925 | if (head == curr) | |
926 | head = curr->next; | |
927 | else | |
928 | curr->prev->next = curr->next; | |
929 | if (tail == curr) | |
930 | tail = curr->prev; | |
931 | curr->active = 0; | |
932 | if (curr->next != NULL) | |
933 | curr->next->prev = curr->prev; | |
934 | if (curr->prev != NULL) | |
935 | curr->prev->next = curr->next; | |
936 | curr->next = NULL; | |
937 | curr->prev = NULL; | |
938 | } | |
939 | } | |
940 | ||
941 | *head_p = head; | |
942 | *tail_p = tail; | |
77359d22 RL |
943 | |
944 | OSSL_TRACE_END(TLS_CIPHER); | |
0f113f3e | 945 | } |
018e57c7 | 946 | |
a717831d | 947 | static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p, |
0f113f3e MC |
948 | CIPHER_ORDER **tail_p) |
949 | { | |
90d9e49a DSH |
950 | int32_t max_strength_bits; |
951 | int i, *number_uses; | |
0f113f3e MC |
952 | CIPHER_ORDER *curr; |
953 | ||
954 | /* | |
955 | * This routine sorts the ciphers with descending strength. The sorting | |
956 | * must keep the pre-sorted sequence, so we apply the normal sorting | |
957 | * routine as '+' movement to the end of the list. | |
958 | */ | |
959 | max_strength_bits = 0; | |
960 | curr = *head_p; | |
961 | while (curr != NULL) { | |
962 | if (curr->active && (curr->cipher->strength_bits > max_strength_bits)) | |
963 | max_strength_bits = curr->cipher->strength_bits; | |
964 | curr = curr->next; | |
965 | } | |
966 | ||
b51bce94 | 967 | number_uses = OPENSSL_zalloc(sizeof(int) * (max_strength_bits + 1)); |
e077455e | 968 | if (number_uses == NULL) |
bbb4ceb8 | 969 | return 0; |
0f113f3e MC |
970 | |
971 | /* | |
972 | * Now find the strength_bits values actually used | |
973 | */ | |
974 | curr = *head_p; | |
975 | while (curr != NULL) { | |
976 | if (curr->active) | |
977 | number_uses[curr->cipher->strength_bits]++; | |
978 | curr = curr->next; | |
979 | } | |
980 | /* | |
981 | * Go through the list of used strength_bits values in descending | |
982 | * order. | |
983 | */ | |
984 | for (i = max_strength_bits; i >= 0; i--) | |
985 | if (number_uses[i] > 0) | |
986 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p, | |
987 | tail_p); | |
988 | ||
989 | OPENSSL_free(number_uses); | |
bbb4ceb8 | 990 | return 1; |
0f113f3e | 991 | } |
018e57c7 DSH |
992 | |
993 | static int ssl_cipher_process_rulestr(const char *rule_str, | |
0f113f3e MC |
994 | CIPHER_ORDER **head_p, |
995 | CIPHER_ORDER **tail_p, | |
996 | const SSL_CIPHER **ca_list, CERT *c) | |
997 | { | |
3eb2aff4 KR |
998 | uint32_t alg_mkey, alg_auth, alg_enc, alg_mac, algo_strength; |
999 | int min_tls; | |
0f113f3e MC |
1000 | const char *l, *buf; |
1001 | int j, multi, found, rule, retval, ok, buflen; | |
90d9e49a | 1002 | uint32_t cipher_id = 0; |
0f113f3e MC |
1003 | char ch; |
1004 | ||
1005 | retval = 1; | |
1006 | l = rule_str; | |
1287dabd | 1007 | for (;;) { |
0f113f3e MC |
1008 | ch = *l; |
1009 | ||
1010 | if (ch == '\0') | |
1011 | break; /* done */ | |
1012 | if (ch == '-') { | |
1013 | rule = CIPHER_DEL; | |
1014 | l++; | |
1015 | } else if (ch == '+') { | |
1016 | rule = CIPHER_ORD; | |
1017 | l++; | |
1018 | } else if (ch == '!') { | |
1019 | rule = CIPHER_KILL; | |
1020 | l++; | |
1021 | } else if (ch == '@') { | |
1022 | rule = CIPHER_SPECIAL; | |
1023 | l++; | |
1024 | } else { | |
1025 | rule = CIPHER_ADD; | |
1026 | } | |
1027 | ||
1028 | if (ITEM_SEP(ch)) { | |
1029 | l++; | |
1030 | continue; | |
1031 | } | |
1032 | ||
1033 | alg_mkey = 0; | |
1034 | alg_auth = 0; | |
1035 | alg_enc = 0; | |
1036 | alg_mac = 0; | |
3eb2aff4 | 1037 | min_tls = 0; |
0f113f3e MC |
1038 | algo_strength = 0; |
1039 | ||
1040 | for (;;) { | |
1041 | ch = *l; | |
1042 | buf = l; | |
1043 | buflen = 0; | |
ca570cfd | 1044 | #ifndef CHARSET_EBCDIC |
0f113f3e MC |
1045 | while (((ch >= 'A') && (ch <= 'Z')) || |
1046 | ((ch >= '0') && (ch <= '9')) || | |
1047 | ((ch >= 'a') && (ch <= 'z')) || | |
d1b26ddb | 1048 | (ch == '-') || (ch == '_') || (ch == '.') || (ch == '=')) |
ca570cfd | 1049 | #else |
d1b26ddb | 1050 | while (isalnum((unsigned char)ch) || (ch == '-') || (ch == '_') || (ch == '.') |
00dfbaad | 1051 | || (ch == '=')) |
ca570cfd | 1052 | #endif |
0f113f3e MC |
1053 | { |
1054 | ch = *(++l); | |
1055 | buflen++; | |
1056 | } | |
1057 | ||
1058 | if (buflen == 0) { | |
1059 | /* | |
1060 | * We hit something we cannot deal with, | |
1061 | * it is no command or separator nor | |
1062 | * alphanumeric, so we call this an error. | |
1063 | */ | |
6849b73c | 1064 | ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_COMMAND); |
0f113f3e MC |
1065 | retval = found = 0; |
1066 | l++; | |
1067 | break; | |
1068 | } | |
1069 | ||
1070 | if (rule == CIPHER_SPECIAL) { | |
1071 | found = 0; /* unused -- avoid compiler warning */ | |
1072 | break; /* special treatment */ | |
1073 | } | |
1074 | ||
1075 | /* check for multi-part specification */ | |
1076 | if (ch == '+') { | |
1077 | multi = 1; | |
1078 | l++; | |
bbb4ceb8 | 1079 | } else { |
0f113f3e | 1080 | multi = 0; |
bbb4ceb8 | 1081 | } |
0f113f3e MC |
1082 | |
1083 | /* | |
1084 | * Now search for the cipher alias in the ca_list. Be careful | |
1085 | * with the strncmp, because the "buflen" limitation | |
1086 | * will make the rule "ADH:SOME" and the cipher | |
1087 | * "ADH-MY-CIPHER" look like a match for buflen=3. | |
1088 | * So additionally check whether the cipher name found | |
1089 | * has the correct length. We can save a strlen() call: | |
1090 | * just checking for the '\0' at the right place is | |
1091 | * sufficient, we have to strncmp() anyway. (We cannot | |
1092 | * use strcmp(), because buf is not '\0' terminated.) | |
1093 | */ | |
1094 | j = found = 0; | |
1095 | cipher_id = 0; | |
1096 | while (ca_list[j]) { | |
86885c28 RS |
1097 | if (strncmp(buf, ca_list[j]->name, buflen) == 0 |
1098 | && (ca_list[j]->name[buflen] == '\0')) { | |
0f113f3e MC |
1099 | found = 1; |
1100 | break; | |
d1b26ddb EL |
1101 | } else if (ca_list[j]->stdname != NULL |
1102 | && strncmp(buf, ca_list[j]->stdname, buflen) == 0 | |
1103 | && ca_list[j]->stdname[buflen] == '\0') { | |
1104 | found = 1; | |
1105 | break; | |
0f113f3e MC |
1106 | } else |
1107 | j++; | |
1108 | } | |
1109 | ||
1110 | if (!found) | |
1111 | break; /* ignore this entry */ | |
1112 | ||
1113 | if (ca_list[j]->algorithm_mkey) { | |
1114 | if (alg_mkey) { | |
1115 | alg_mkey &= ca_list[j]->algorithm_mkey; | |
1116 | if (!alg_mkey) { | |
1117 | found = 0; | |
1118 | break; | |
1119 | } | |
bbb4ceb8 | 1120 | } else { |
0f113f3e | 1121 | alg_mkey = ca_list[j]->algorithm_mkey; |
bbb4ceb8 | 1122 | } |
0f113f3e MC |
1123 | } |
1124 | ||
1125 | if (ca_list[j]->algorithm_auth) { | |
1126 | if (alg_auth) { | |
1127 | alg_auth &= ca_list[j]->algorithm_auth; | |
1128 | if (!alg_auth) { | |
1129 | found = 0; | |
1130 | break; | |
1131 | } | |
bbb4ceb8 | 1132 | } else { |
0f113f3e | 1133 | alg_auth = ca_list[j]->algorithm_auth; |
bbb4ceb8 | 1134 | } |
0f113f3e MC |
1135 | } |
1136 | ||
1137 | if (ca_list[j]->algorithm_enc) { | |
1138 | if (alg_enc) { | |
1139 | alg_enc &= ca_list[j]->algorithm_enc; | |
1140 | if (!alg_enc) { | |
1141 | found = 0; | |
1142 | break; | |
1143 | } | |
bbb4ceb8 | 1144 | } else { |
0f113f3e | 1145 | alg_enc = ca_list[j]->algorithm_enc; |
bbb4ceb8 | 1146 | } |
0f113f3e MC |
1147 | } |
1148 | ||
1149 | if (ca_list[j]->algorithm_mac) { | |
1150 | if (alg_mac) { | |
1151 | alg_mac &= ca_list[j]->algorithm_mac; | |
1152 | if (!alg_mac) { | |
1153 | found = 0; | |
1154 | break; | |
1155 | } | |
bbb4ceb8 | 1156 | } else { |
0f113f3e | 1157 | alg_mac = ca_list[j]->algorithm_mac; |
bbb4ceb8 | 1158 | } |
0f113f3e MC |
1159 | } |
1160 | ||
88a9614b KR |
1161 | if (ca_list[j]->algo_strength & SSL_STRONG_MASK) { |
1162 | if (algo_strength & SSL_STRONG_MASK) { | |
1163 | algo_strength &= | |
1164 | (ca_list[j]->algo_strength & SSL_STRONG_MASK) | | |
1165 | ~SSL_STRONG_MASK; | |
1166 | if (!(algo_strength & SSL_STRONG_MASK)) { | |
0f113f3e MC |
1167 | found = 0; |
1168 | break; | |
1169 | } | |
bbb4ceb8 | 1170 | } else { |
88a9614b | 1171 | algo_strength = ca_list[j]->algo_strength & SSL_STRONG_MASK; |
bbb4ceb8 | 1172 | } |
0f113f3e MC |
1173 | } |
1174 | ||
c84f7f4a MC |
1175 | if (ca_list[j]->algo_strength & SSL_DEFAULT_MASK) { |
1176 | if (algo_strength & SSL_DEFAULT_MASK) { | |
1177 | algo_strength &= | |
1178 | (ca_list[j]->algo_strength & SSL_DEFAULT_MASK) | | |
1179 | ~SSL_DEFAULT_MASK; | |
1180 | if (!(algo_strength & SSL_DEFAULT_MASK)) { | |
1181 | found = 0; | |
1182 | break; | |
1183 | } | |
bbb4ceb8 | 1184 | } else { |
c84f7f4a MC |
1185 | algo_strength |= |
1186 | ca_list[j]->algo_strength & SSL_DEFAULT_MASK; | |
bbb4ceb8 | 1187 | } |
c84f7f4a MC |
1188 | } |
1189 | ||
0f113f3e MC |
1190 | if (ca_list[j]->valid) { |
1191 | /* | |
1192 | * explicit ciphersuite found; its protocol version does not | |
1193 | * become part of the search pattern! | |
1194 | */ | |
1195 | ||
1196 | cipher_id = ca_list[j]->id; | |
1197 | } else { | |
1198 | /* | |
1199 | * not an explicit ciphersuite; only in this case, the | |
1200 | * protocol version is considered part of the search pattern | |
1201 | */ | |
1202 | ||
3eb2aff4 KR |
1203 | if (ca_list[j]->min_tls) { |
1204 | if (min_tls != 0 && min_tls != ca_list[j]->min_tls) { | |
1205 | found = 0; | |
1206 | break; | |
1207 | } else { | |
1208 | min_tls = ca_list[j]->min_tls; | |
1209 | } | |
0f113f3e MC |
1210 | } |
1211 | } | |
1212 | ||
1213 | if (!multi) | |
1214 | break; | |
1215 | } | |
1216 | ||
1217 | /* | |
1218 | * Ok, we have the rule, now apply it | |
1219 | */ | |
1220 | if (rule == CIPHER_SPECIAL) { /* special command */ | |
1221 | ok = 0; | |
2ff286c2 | 1222 | if ((buflen == 8) && HAS_PREFIX(buf, "STRENGTH")) { |
0f113f3e | 1223 | ok = ssl_cipher_strength_sort(head_p, tail_p); |
2ff286c2 DDO |
1224 | } else if (buflen == 10 && CHECK_AND_SKIP_PREFIX(buf, "SECLEVEL=")) { |
1225 | int level = *buf - '0'; | |
0f113f3e | 1226 | if (level < 0 || level > 5) { |
6849b73c | 1227 | ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_COMMAND); |
0f113f3e MC |
1228 | } else { |
1229 | c->sec_level = level; | |
1230 | ok = 1; | |
1231 | } | |
bbb4ceb8 | 1232 | } else { |
6849b73c | 1233 | ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_COMMAND); |
bbb4ceb8 | 1234 | } |
0f113f3e MC |
1235 | if (ok == 0) |
1236 | retval = 0; | |
1237 | /* | |
1238 | * We do not support any "multi" options | |
1239 | * together with "@", so throw away the | |
1240 | * rest of the command, if any left, until | |
1241 | * end or ':' is found. | |
1242 | */ | |
1243 | while ((*l != '\0') && !ITEM_SEP(*l)) | |
1244 | l++; | |
1245 | } else if (found) { | |
1246 | ssl_cipher_apply_rule(cipher_id, | |
1247 | alg_mkey, alg_auth, alg_enc, alg_mac, | |
3eb2aff4 | 1248 | min_tls, algo_strength, rule, -1, head_p, |
0f113f3e MC |
1249 | tail_p); |
1250 | } else { | |
1251 | while ((*l != '\0') && !ITEM_SEP(*l)) | |
1252 | l++; | |
1253 | } | |
1254 | if (*l == '\0') | |
1255 | break; /* done */ | |
1256 | } | |
1257 | ||
bbb4ceb8 | 1258 | return retval; |
0f113f3e MC |
1259 | } |
1260 | ||
2ea80354 | 1261 | static int check_suiteb_cipher_list(const SSL_METHOD *meth, CERT *c, |
0f113f3e MC |
1262 | const char **prule_str) |
1263 | { | |
1264 | unsigned int suiteb_flags = 0, suiteb_comb2 = 0; | |
2ff286c2 | 1265 | if (HAS_PREFIX(*prule_str, "SUITEB128ONLY")) { |
0f113f3e | 1266 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS_ONLY; |
2ff286c2 | 1267 | } else if (HAS_PREFIX(*prule_str, "SUITEB128C2")) { |
0f113f3e MC |
1268 | suiteb_comb2 = 1; |
1269 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS; | |
2ff286c2 | 1270 | } else if (HAS_PREFIX(*prule_str, "SUITEB128")) { |
13e228d6 | 1271 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS; |
2ff286c2 | 1272 | } else if (HAS_PREFIX(*prule_str, "SUITEB192")) { |
0f113f3e | 1273 | suiteb_flags = SSL_CERT_FLAG_SUITEB_192_LOS; |
13e228d6 | 1274 | } |
0f113f3e MC |
1275 | |
1276 | if (suiteb_flags) { | |
1277 | c->cert_flags &= ~SSL_CERT_FLAG_SUITEB_128_LOS; | |
1278 | c->cert_flags |= suiteb_flags; | |
bbb4ceb8 | 1279 | } else { |
0f113f3e | 1280 | suiteb_flags = c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS; |
bbb4ceb8 | 1281 | } |
0f113f3e MC |
1282 | |
1283 | if (!suiteb_flags) | |
1284 | return 1; | |
1285 | /* Check version: if TLS 1.2 ciphers allowed we can use Suite B */ | |
1286 | ||
1287 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)) { | |
6849b73c | 1288 | ERR_raise(ERR_LIB_SSL, SSL_R_AT_LEAST_TLS_1_2_NEEDED_IN_SUITEB_MODE); |
0f113f3e MC |
1289 | return 0; |
1290 | } | |
462f4f4b | 1291 | |
0f113f3e MC |
1292 | switch (suiteb_flags) { |
1293 | case SSL_CERT_FLAG_SUITEB_128_LOS: | |
1294 | if (suiteb_comb2) | |
1295 | *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1296 | else | |
1297 | *prule_str = | |
1298 | "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1299 | break; | |
1300 | case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY: | |
1301 | *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256"; | |
1302 | break; | |
1303 | case SSL_CERT_FLAG_SUITEB_192_LOS: | |
1304 | *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1305 | break; | |
1306 | } | |
0f113f3e | 1307 | return 1; |
0f113f3e | 1308 | } |
2ea80354 | 1309 | |
a53b5be6 MC |
1310 | static int ciphersuite_cb(const char *elem, int len, void *arg) |
1311 | { | |
1312 | STACK_OF(SSL_CIPHER) *ciphersuites = (STACK_OF(SSL_CIPHER) *)arg; | |
1313 | const SSL_CIPHER *cipher; | |
1314 | /* Arbitrary sized temp buffer for the cipher name. Should be big enough */ | |
1315 | char name[80]; | |
1316 | ||
981b4b95 OH |
1317 | if (len > (int)(sizeof(name) - 1)) |
1318 | /* Anyway return 1 so we can parse rest of the list */ | |
1319 | return 1; | |
a53b5be6 MC |
1320 | |
1321 | memcpy(name, elem, len); | |
1322 | name[len] = '\0'; | |
1323 | ||
1324 | cipher = ssl3_get_cipher_by_std_name(name); | |
981b4b95 | 1325 | if (cipher == NULL) |
c1e8a0c6 OH |
1326 | /* Ciphersuite not found but return 1 to parse rest of the list */ |
1327 | return 1; | |
a53b5be6 MC |
1328 | |
1329 | if (!sk_SSL_CIPHER_push(ciphersuites, cipher)) { | |
6849b73c | 1330 | ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR); |
a53b5be6 MC |
1331 | return 0; |
1332 | } | |
1333 | ||
1334 | return 1; | |
1335 | } | |
1336 | ||
f9a22815 | 1337 | static __owur int set_ciphersuites(STACK_OF(SSL_CIPHER) **currciphers, const char *str) |
a53b5be6 MC |
1338 | { |
1339 | STACK_OF(SSL_CIPHER) *newciphers = sk_SSL_CIPHER_new_null(); | |
1340 | ||
1341 | if (newciphers == NULL) | |
1342 | return 0; | |
1343 | ||
1344 | /* Parse the list. We explicitly allow an empty list */ | |
1345 | if (*str != '\0' | |
c1e8a0c6 | 1346 | && (CONF_parse_list(str, ':', 1, ciphersuite_cb, newciphers) <= 0 |
3d0b6494 | 1347 | || sk_SSL_CIPHER_num(newciphers) == 0)) { |
981b4b95 | 1348 | ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH); |
a53b5be6 MC |
1349 | sk_SSL_CIPHER_free(newciphers); |
1350 | return 0; | |
1351 | } | |
1352 | sk_SSL_CIPHER_free(*currciphers); | |
1353 | *currciphers = newciphers; | |
1354 | ||
1355 | return 1; | |
1356 | } | |
1357 | ||
1358 | static int update_cipher_list_by_id(STACK_OF(SSL_CIPHER) **cipher_list_by_id, | |
1359 | STACK_OF(SSL_CIPHER) *cipherstack) | |
1360 | { | |
1361 | STACK_OF(SSL_CIPHER) *tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack); | |
1362 | ||
1363 | if (tmp_cipher_list == NULL) { | |
1364 | return 0; | |
1365 | } | |
1366 | ||
1367 | sk_SSL_CIPHER_free(*cipher_list_by_id); | |
1368 | *cipher_list_by_id = tmp_cipher_list; | |
1369 | ||
1370 | (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id, ssl_cipher_ptr_id_cmp); | |
1371 | sk_SSL_CIPHER_sort(*cipher_list_by_id); | |
1372 | ||
1373 | return 1; | |
1374 | } | |
1375 | ||
6cb814de | 1376 | static int update_cipher_list(SSL_CTX *ctx, |
1377 | STACK_OF(SSL_CIPHER) **cipher_list, | |
a53b5be6 MC |
1378 | STACK_OF(SSL_CIPHER) **cipher_list_by_id, |
1379 | STACK_OF(SSL_CIPHER) *tls13_ciphersuites) | |
1380 | { | |
1381 | int i; | |
1382 | STACK_OF(SSL_CIPHER) *tmp_cipher_list = sk_SSL_CIPHER_dup(*cipher_list); | |
1383 | ||
1384 | if (tmp_cipher_list == NULL) | |
1385 | return 0; | |
1386 | ||
1387 | /* | |
1388 | * Delete any existing TLSv1.3 ciphersuites. These are always first in the | |
1389 | * list. | |
1390 | */ | |
1391 | while (sk_SSL_CIPHER_num(tmp_cipher_list) > 0 | |
1392 | && sk_SSL_CIPHER_value(tmp_cipher_list, 0)->min_tls | |
1393 | == TLS1_3_VERSION) | |
225c9660 | 1394 | (void)sk_SSL_CIPHER_delete(tmp_cipher_list, 0); |
a53b5be6 MC |
1395 | |
1396 | /* Insert the new TLSv1.3 ciphersuites */ | |
6cb814de | 1397 | for (i = sk_SSL_CIPHER_num(tls13_ciphersuites) - 1; i >= 0; i--) { |
1398 | const SSL_CIPHER *sslc = sk_SSL_CIPHER_value(tls13_ciphersuites, i); | |
1399 | ||
1400 | /* Don't include any TLSv1.3 ciphersuites that are disabled */ | |
1401 | if ((sslc->algorithm_enc & ctx->disabled_enc_mask) == 0 | |
1402 | && (ssl_cipher_table_mac[sslc->algorithm2 | |
1403 | & SSL_HANDSHAKE_MAC_MASK].mask | |
1404 | & ctx->disabled_mac_mask) == 0) { | |
1405 | sk_SSL_CIPHER_unshift(tmp_cipher_list, sslc); | |
1406 | } | |
1407 | } | |
a53b5be6 | 1408 | |
e22105d1 P |
1409 | if (!update_cipher_list_by_id(cipher_list_by_id, tmp_cipher_list)) { |
1410 | sk_SSL_CIPHER_free(tmp_cipher_list); | |
a53b5be6 | 1411 | return 0; |
e22105d1 | 1412 | } |
a53b5be6 MC |
1413 | |
1414 | sk_SSL_CIPHER_free(*cipher_list); | |
1415 | *cipher_list = tmp_cipher_list; | |
1416 | ||
1417 | return 1; | |
1418 | } | |
1419 | ||
1420 | int SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str) | |
1421 | { | |
1422 | int ret = set_ciphersuites(&(ctx->tls13_ciphersuites), str); | |
1423 | ||
52b1fda3 | 1424 | if (ret && ctx->cipher_list != NULL) |
6cb814de | 1425 | return update_cipher_list(ctx, &ctx->cipher_list, &ctx->cipher_list_by_id, |
a53b5be6 | 1426 | ctx->tls13_ciphersuites); |
a53b5be6 MC |
1427 | |
1428 | return ret; | |
1429 | } | |
1430 | ||
1431 | int SSL_set_ciphersuites(SSL *s, const char *str) | |
1432 | { | |
52b1fda3 | 1433 | STACK_OF(SSL_CIPHER) *cipher_list; |
38b051a1 TM |
1434 | SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s); |
1435 | int ret; | |
a53b5be6 | 1436 | |
38b051a1 TM |
1437 | if (sc == NULL) |
1438 | return 0; | |
1439 | ||
1440 | ret = set_ciphersuites(&(sc->tls13_ciphersuites), str); | |
1441 | ||
1442 | if (sc->cipher_list == NULL) { | |
52b1fda3 | 1443 | if ((cipher_list = SSL_get_ciphers(s)) != NULL) |
38b051a1 | 1444 | sc->cipher_list = sk_SSL_CIPHER_dup(cipher_list); |
52b1fda3 | 1445 | } |
38b051a1 TM |
1446 | if (ret && sc->cipher_list != NULL) |
1447 | return update_cipher_list(s->ctx, &sc->cipher_list, | |
1448 | &sc->cipher_list_by_id, | |
1449 | sc->tls13_ciphersuites); | |
a53b5be6 MC |
1450 | |
1451 | return ret; | |
1452 | } | |
1453 | ||
a68eee67 | 1454 | STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_CTX *ctx, |
f865b081 MC |
1455 | STACK_OF(SSL_CIPHER) *tls13_ciphersuites, |
1456 | STACK_OF(SSL_CIPHER) **cipher_list, | |
1457 | STACK_OF(SSL_CIPHER) **cipher_list_by_id, | |
1458 | const char *rule_str, | |
1459 | CERT *c) | |
0f113f3e | 1460 | { |
f865b081 | 1461 | int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases, i; |
6063453c | 1462 | uint32_t disabled_mkey, disabled_auth, disabled_enc, disabled_mac; |
a53b5be6 | 1463 | STACK_OF(SSL_CIPHER) *cipherstack; |
0f113f3e MC |
1464 | const char *rule_p; |
1465 | CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr; | |
1466 | const SSL_CIPHER **ca_list = NULL; | |
a68eee67 | 1467 | const SSL_METHOD *ssl_method = ctx->method; |
0f113f3e MC |
1468 | |
1469 | /* | |
1470 | * Return with error if nothing to do. | |
1471 | */ | |
1472 | if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL) | |
1473 | return NULL; | |
462f4f4b | 1474 | |
0f113f3e MC |
1475 | if (!check_suiteb_cipher_list(ssl_method, c, &rule_str)) |
1476 | return NULL; | |
2ea80354 | 1477 | |
0f113f3e MC |
1478 | /* |
1479 | * To reduce the work to do we only want to process the compiled | |
1480 | * in algorithms, so we first get the mask of disabled ciphers. | |
1481 | */ | |
633d49c7 | 1482 | |
a68eee67 MC |
1483 | disabled_mkey = ctx->disabled_mkey_mask; |
1484 | disabled_auth = ctx->disabled_auth_mask; | |
1485 | disabled_enc = ctx->disabled_enc_mask; | |
1486 | disabled_mac = ctx->disabled_mac_mask; | |
0f113f3e MC |
1487 | |
1488 | /* | |
1489 | * Now we have to collect the available ciphers from the compiled | |
1490 | * in ciphers. We cannot get more than the number compiled in, so | |
1491 | * it is used for allocation. | |
1492 | */ | |
1493 | num_of_ciphers = ssl_method->num_ciphers(); | |
55a9a16f | 1494 | |
b4faea50 | 1495 | co_list = OPENSSL_malloc(sizeof(*co_list) * num_of_ciphers); |
e077455e | 1496 | if (co_list == NULL) |
bbb4ceb8 | 1497 | return NULL; /* Failure */ |
0f113f3e MC |
1498 | |
1499 | ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, | |
1500 | disabled_mkey, disabled_auth, disabled_enc, | |
a230b26e | 1501 | disabled_mac, co_list, &head, &tail); |
0f113f3e | 1502 | |
a556f342 | 1503 | /* Now arrange all ciphers by preference. */ |
0f113f3e MC |
1504 | |
1505 | /* | |
1506 | * Everything else being equal, prefer ephemeral ECDH over other key | |
a556f342 EK |
1507 | * exchange mechanisms. |
1508 | * For consistency, prefer ECDSA over RSA (though this only matters if the | |
1509 | * server has both certificates, and is using the DEFAULT, or a client | |
1510 | * preference). | |
0f113f3e | 1511 | */ |
a556f342 EK |
1512 | ssl_cipher_apply_rule(0, SSL_kECDHE, SSL_aECDSA, 0, 0, 0, 0, CIPHER_ADD, |
1513 | -1, &head, &tail); | |
0f113f3e MC |
1514 | ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, |
1515 | &tail); | |
1516 | ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, | |
1517 | &tail); | |
1518 | ||
a556f342 EK |
1519 | /* Within each strength group, we prefer GCM over CHACHA... */ |
1520 | ssl_cipher_apply_rule(0, 0, 0, SSL_AESGCM, 0, 0, 0, CIPHER_ADD, -1, | |
1521 | &head, &tail); | |
1522 | ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20, 0, 0, 0, CIPHER_ADD, -1, | |
1523 | &head, &tail); | |
1524 | ||
a230b26e EK |
1525 | /* |
1526 | * ...and generally, our preferred cipher is AES. | |
1527 | * Note that AEADs will be bumped to take preference after sorting by | |
1528 | * strength. | |
1529 | */ | |
a556f342 EK |
1530 | ssl_cipher_apply_rule(0, 0, 0, SSL_AES ^ SSL_AESGCM, 0, 0, 0, CIPHER_ADD, |
1531 | -1, &head, &tail); | |
0f113f3e MC |
1532 | |
1533 | /* Temporarily enable everything else for sorting */ | |
1534 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); | |
1535 | ||
1536 | /* Low priority for MD5 */ | |
1537 | ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head, | |
1538 | &tail); | |
1539 | ||
1540 | /* | |
1541 | * Move anonymous ciphers to the end. Usually, these will remain | |
1542 | * disabled. (For applications that allow them, they aren't too bad, but | |
1543 | * we prefer authenticated ciphers.) | |
1544 | */ | |
1545 | ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1546 | &tail); | |
1547 | ||
0f113f3e MC |
1548 | ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, |
1549 | &tail); | |
1550 | ssl_cipher_apply_rule(0, SSL_kPSK, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1551 | &tail); | |
0f113f3e | 1552 | |
3519bae5 | 1553 | /* RC4 is sort-of broken -- move to the end */ |
0f113f3e MC |
1554 | ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head, |
1555 | &tail); | |
1556 | ||
1557 | /* | |
1558 | * Now sort by symmetric encryption strength. The above ordering remains | |
1559 | * in force within each class | |
1560 | */ | |
1561 | if (!ssl_cipher_strength_sort(&head, &tail)) { | |
1562 | OPENSSL_free(co_list); | |
1563 | return NULL; | |
1564 | } | |
1565 | ||
a556f342 EK |
1566 | /* |
1567 | * Partially overrule strength sort to prefer TLS 1.2 ciphers/PRFs. | |
a556f342 | 1568 | */ |
3eb2aff4 | 1569 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, TLS1_2_VERSION, 0, CIPHER_BUMP, -1, |
a556f342 EK |
1570 | &head, &tail); |
1571 | ||
1572 | /* | |
1573 | * Irrespective of strength, enforce the following order: | |
1574 | * (EC)DHE + AEAD > (EC)DHE > rest of AEAD > rest. | |
1575 | * Within each group, ciphers remain sorted by strength and previous | |
1576 | * preference, i.e., | |
1577 | * 1) ECDHE > DHE | |
1578 | * 2) GCM > CHACHA | |
1579 | * 3) AES > rest | |
1580 | * 4) TLS 1.2 > legacy | |
1581 | * | |
1582 | * Because we now bump ciphers to the top of the list, we proceed in | |
1583 | * reverse order of preference. | |
1584 | */ | |
1585 | ssl_cipher_apply_rule(0, 0, 0, 0, SSL_AEAD, 0, 0, CIPHER_BUMP, -1, | |
1586 | &head, &tail); | |
1587 | ssl_cipher_apply_rule(0, SSL_kDHE | SSL_kECDHE, 0, 0, 0, 0, 0, | |
a230b26e | 1588 | CIPHER_BUMP, -1, &head, &tail); |
a556f342 | 1589 | ssl_cipher_apply_rule(0, SSL_kDHE | SSL_kECDHE, 0, 0, SSL_AEAD, 0, 0, |
a230b26e | 1590 | CIPHER_BUMP, -1, &head, &tail); |
a556f342 | 1591 | |
0f113f3e MC |
1592 | /* Now disable everything (maintaining the ordering!) */ |
1593 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); | |
1594 | ||
1595 | /* | |
1596 | * We also need cipher aliases for selecting based on the rule_str. | |
1597 | * There might be two types of entries in the rule_str: 1) names | |
1598 | * of ciphers themselves 2) aliases for groups of ciphers. | |
1599 | * For 1) we need the available ciphers and for 2) the cipher | |
1600 | * groups of cipher_aliases added together in one list (otherwise | |
1601 | * we would be happy with just the cipher_aliases table). | |
1602 | */ | |
b6eb9827 | 1603 | num_of_group_aliases = OSSL_NELEM(cipher_aliases); |
0f113f3e | 1604 | num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1; |
b4faea50 | 1605 | ca_list = OPENSSL_malloc(sizeof(*ca_list) * num_of_alias_max); |
0f113f3e MC |
1606 | if (ca_list == NULL) { |
1607 | OPENSSL_free(co_list); | |
bbb4ceb8 | 1608 | return NULL; /* Failure */ |
0f113f3e MC |
1609 | } |
1610 | ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, | |
1611 | disabled_mkey, disabled_auth, disabled_enc, | |
6063453c | 1612 | disabled_mac, head); |
0f113f3e MC |
1613 | |
1614 | /* | |
1615 | * If the rule_string begins with DEFAULT, apply the default rule | |
1616 | * before using the (possibly available) additional rules. | |
1617 | */ | |
1618 | ok = 1; | |
1619 | rule_p = rule_str; | |
2ff286c2 | 1620 | if (HAS_PREFIX(rule_str, "DEFAULT")) { |
5d120511 | 1621 | ok = ssl_cipher_process_rulestr(OSSL_default_cipher_list(), |
0f113f3e MC |
1622 | &head, &tail, ca_list, c); |
1623 | rule_p += 7; | |
1624 | if (*rule_p == ':') | |
1625 | rule_p++; | |
1626 | } | |
1627 | ||
4bac25e1 | 1628 | if (ok && (rule_p[0] != '\0')) |
0f113f3e MC |
1629 | ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list, c); |
1630 | ||
a230b26e | 1631 | OPENSSL_free(ca_list); /* Not needed anymore */ |
0f113f3e MC |
1632 | |
1633 | if (!ok) { /* Rule processing failure */ | |
1634 | OPENSSL_free(co_list); | |
bbb4ceb8 | 1635 | return NULL; |
0f113f3e MC |
1636 | } |
1637 | ||
1638 | /* | |
1639 | * Allocate new "cipherstack" for the result, return with error | |
1640 | * if we cannot get one. | |
1641 | */ | |
1642 | if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) { | |
1643 | OPENSSL_free(co_list); | |
bbb4ceb8 | 1644 | return NULL; |
0f113f3e MC |
1645 | } |
1646 | ||
f865b081 MC |
1647 | /* Add TLSv1.3 ciphers first - we always prefer those if possible */ |
1648 | for (i = 0; i < sk_SSL_CIPHER_num(tls13_ciphersuites); i++) { | |
4264ecd4 MC |
1649 | const SSL_CIPHER *sslc = sk_SSL_CIPHER_value(tls13_ciphersuites, i); |
1650 | ||
1651 | /* Don't include any TLSv1.3 ciphers that are disabled */ | |
1652 | if ((sslc->algorithm_enc & disabled_enc) != 0 | |
1653 | || (ssl_cipher_table_mac[sslc->algorithm2 | |
1654 | & SSL_HANDSHAKE_MAC_MASK].mask | |
ce0b307e BK |
1655 | & ctx->disabled_mac_mask) != 0) { |
1656 | sk_SSL_CIPHER_delete(tls13_ciphersuites, i); | |
1657 | i--; | |
4264ecd4 | 1658 | continue; |
ce0b307e | 1659 | } |
4264ecd4 MC |
1660 | |
1661 | if (!sk_SSL_CIPHER_push(cipherstack, sslc)) { | |
3a069c1b | 1662 | OPENSSL_free(co_list); |
f865b081 MC |
1663 | sk_SSL_CIPHER_free(cipherstack); |
1664 | return NULL; | |
1665 | } | |
1666 | } | |
1667 | ||
77359d22 RL |
1668 | OSSL_TRACE_BEGIN(TLS_CIPHER) { |
1669 | BIO_printf(trc_out, "cipher selection:\n"); | |
1670 | } | |
0f113f3e MC |
1671 | /* |
1672 | * The cipher selection for the list is done. The ciphers are added | |
1673 | * to the resulting precedence to the STACK_OF(SSL_CIPHER). | |
1674 | */ | |
1675 | for (curr = head; curr != NULL; curr = curr->next) { | |
b53338cb | 1676 | if (curr->active) { |
0f113f3e MC |
1677 | if (!sk_SSL_CIPHER_push(cipherstack, curr->cipher)) { |
1678 | OPENSSL_free(co_list); | |
1679 | sk_SSL_CIPHER_free(cipherstack); | |
77359d22 | 1680 | OSSL_TRACE_CANCEL(TLS_CIPHER); |
0f113f3e MC |
1681 | return NULL; |
1682 | } | |
77359d22 RL |
1683 | if (trc_out != NULL) |
1684 | BIO_printf(trc_out, "<%s>\n", curr->cipher->name); | |
0f113f3e MC |
1685 | } |
1686 | } | |
1687 | OPENSSL_free(co_list); /* Not needed any longer */ | |
77359d22 | 1688 | OSSL_TRACE_END(TLS_CIPHER); |
0f113f3e | 1689 | |
a53b5be6 | 1690 | if (!update_cipher_list_by_id(cipher_list_by_id, cipherstack)) { |
0f113f3e MC |
1691 | sk_SSL_CIPHER_free(cipherstack); |
1692 | return NULL; | |
1693 | } | |
25aaa98a | 1694 | sk_SSL_CIPHER_free(*cipher_list); |
0f113f3e | 1695 | *cipher_list = cipherstack; |
0f113f3e | 1696 | |
bbb4ceb8 | 1697 | return cipherstack; |
0f113f3e | 1698 | } |
d02b48c6 | 1699 | |
7689ed34 | 1700 | char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len) |
0f113f3e | 1701 | { |
361a1191 | 1702 | const char *ver; |
0f113f3e | 1703 | const char *kx, *au, *enc, *mac; |
baf245ec | 1704 | uint32_t alg_mkey, alg_auth, alg_enc, alg_mac; |
6b2e51dd | 1705 | static const char *format = "%-30s %-7s Kx=%-8s Au=%-5s Enc=%-22s Mac=%-4s\n"; |
0f113f3e | 1706 | |
baf245ec RS |
1707 | if (buf == NULL) { |
1708 | len = 128; | |
e077455e | 1709 | if ((buf = OPENSSL_malloc(len)) == NULL) |
baf245ec | 1710 | return NULL; |
bbb4ceb8 | 1711 | } else if (len < 128) { |
baf245ec | 1712 | return NULL; |
bbb4ceb8 | 1713 | } |
baf245ec | 1714 | |
0f113f3e MC |
1715 | alg_mkey = cipher->algorithm_mkey; |
1716 | alg_auth = cipher->algorithm_auth; | |
1717 | alg_enc = cipher->algorithm_enc; | |
1718 | alg_mac = cipher->algorithm_mac; | |
0f113f3e | 1719 | |
3eb2aff4 | 1720 | ver = ssl_protocol_to_string(cipher->min_tls); |
0f113f3e MC |
1721 | |
1722 | switch (alg_mkey) { | |
1723 | case SSL_kRSA: | |
361a1191 | 1724 | kx = "RSA"; |
0f113f3e | 1725 | break; |
0f113f3e | 1726 | case SSL_kDHE: |
361a1191 | 1727 | kx = "DH"; |
0f113f3e | 1728 | break; |
0f113f3e MC |
1729 | case SSL_kECDHE: |
1730 | kx = "ECDH"; | |
1731 | break; | |
1732 | case SSL_kPSK: | |
1733 | kx = "PSK"; | |
1734 | break; | |
8baac6a2 DSH |
1735 | case SSL_kRSAPSK: |
1736 | kx = "RSAPSK"; | |
1737 | break; | |
1738 | case SSL_kECDHEPSK: | |
1739 | kx = "ECDHEPSK"; | |
1740 | break; | |
1741 | case SSL_kDHEPSK: | |
1742 | kx = "DHEPSK"; | |
1743 | break; | |
0f113f3e MC |
1744 | case SSL_kSRP: |
1745 | kx = "SRP"; | |
1746 | break; | |
1747 | case SSL_kGOST: | |
1748 | kx = "GOST"; | |
1749 | break; | |
5a5530a2 DB |
1750 | case SSL_kGOST18: |
1751 | kx = "GOST18"; | |
1752 | break; | |
e5c4bf93 DSH |
1753 | case SSL_kANY: |
1754 | kx = "any"; | |
1755 | break; | |
0f113f3e MC |
1756 | default: |
1757 | kx = "unknown"; | |
1758 | } | |
1759 | ||
1760 | switch (alg_auth) { | |
1761 | case SSL_aRSA: | |
1762 | au = "RSA"; | |
1763 | break; | |
1764 | case SSL_aDSS: | |
1765 | au = "DSS"; | |
1766 | break; | |
0f113f3e MC |
1767 | case SSL_aNULL: |
1768 | au = "None"; | |
1769 | break; | |
1770 | case SSL_aECDSA: | |
1771 | au = "ECDSA"; | |
1772 | break; | |
1773 | case SSL_aPSK: | |
1774 | au = "PSK"; | |
1775 | break; | |
1776 | case SSL_aSRP: | |
1777 | au = "SRP"; | |
1778 | break; | |
0f113f3e MC |
1779 | case SSL_aGOST01: |
1780 | au = "GOST01"; | |
1781 | break; | |
48722ff5 | 1782 | /* New GOST ciphersuites have both SSL_aGOST12 and SSL_aGOST01 bits */ |
e44380a9 DB |
1783 | case (SSL_aGOST12 | SSL_aGOST01): |
1784 | au = "GOST12"; | |
1785 | break; | |
e5c4bf93 DSH |
1786 | case SSL_aANY: |
1787 | au = "any"; | |
1788 | break; | |
0f113f3e MC |
1789 | default: |
1790 | au = "unknown"; | |
1791 | break; | |
1792 | } | |
1793 | ||
1794 | switch (alg_enc) { | |
1795 | case SSL_DES: | |
361a1191 | 1796 | enc = "DES(56)"; |
0f113f3e MC |
1797 | break; |
1798 | case SSL_3DES: | |
1799 | enc = "3DES(168)"; | |
1800 | break; | |
1801 | case SSL_RC4: | |
361a1191 | 1802 | enc = "RC4(128)"; |
0f113f3e MC |
1803 | break; |
1804 | case SSL_RC2: | |
361a1191 | 1805 | enc = "RC2(128)"; |
0f113f3e MC |
1806 | break; |
1807 | case SSL_IDEA: | |
1808 | enc = "IDEA(128)"; | |
1809 | break; | |
1810 | case SSL_eNULL: | |
1811 | enc = "None"; | |
1812 | break; | |
1813 | case SSL_AES128: | |
1814 | enc = "AES(128)"; | |
1815 | break; | |
1816 | case SSL_AES256: | |
1817 | enc = "AES(256)"; | |
1818 | break; | |
1819 | case SSL_AES128GCM: | |
1820 | enc = "AESGCM(128)"; | |
1821 | break; | |
1822 | case SSL_AES256GCM: | |
1823 | enc = "AESGCM(256)"; | |
1824 | break; | |
e75c5a79 DSH |
1825 | case SSL_AES128CCM: |
1826 | enc = "AESCCM(128)"; | |
1827 | break; | |
1828 | case SSL_AES256CCM: | |
1829 | enc = "AESCCM(256)"; | |
1830 | break; | |
3d3701ea DSH |
1831 | case SSL_AES128CCM8: |
1832 | enc = "AESCCM8(128)"; | |
1833 | break; | |
1834 | case SSL_AES256CCM8: | |
1835 | enc = "AESCCM8(256)"; | |
1836 | break; | |
0f113f3e MC |
1837 | case SSL_CAMELLIA128: |
1838 | enc = "Camellia(128)"; | |
1839 | break; | |
1840 | case SSL_CAMELLIA256: | |
1841 | enc = "Camellia(256)"; | |
1842 | break; | |
bc326738 JS |
1843 | case SSL_ARIA128GCM: |
1844 | enc = "ARIAGCM(128)"; | |
1845 | break; | |
1846 | case SSL_ARIA256GCM: | |
1847 | enc = "ARIAGCM(256)"; | |
1848 | break; | |
0f113f3e MC |
1849 | case SSL_SEED: |
1850 | enc = "SEED(128)"; | |
1851 | break; | |
1852 | case SSL_eGOST2814789CNT: | |
e44380a9 | 1853 | case SSL_eGOST2814789CNT12: |
0f113f3e MC |
1854 | enc = "GOST89(256)"; |
1855 | break; | |
5a5530a2 DB |
1856 | case SSL_MAGMA: |
1857 | enc = "MAGMA"; | |
1858 | break; | |
1859 | case SSL_KUZNYECHIK: | |
1860 | enc = "KUZNYECHIK"; | |
1861 | break; | |
0d3587c7 MC |
1862 | case SSL_CHACHA20POLY1305: |
1863 | enc = "CHACHA20/POLY1305(256)"; | |
1864 | break; | |
0f113f3e MC |
1865 | default: |
1866 | enc = "unknown"; | |
1867 | break; | |
1868 | } | |
1869 | ||
1870 | switch (alg_mac) { | |
1871 | case SSL_MD5: | |
1872 | mac = "MD5"; | |
1873 | break; | |
1874 | case SSL_SHA1: | |
1875 | mac = "SHA1"; | |
1876 | break; | |
1877 | case SSL_SHA256: | |
1878 | mac = "SHA256"; | |
1879 | break; | |
1880 | case SSL_SHA384: | |
1881 | mac = "SHA384"; | |
1882 | break; | |
1883 | case SSL_AEAD: | |
1884 | mac = "AEAD"; | |
1885 | break; | |
1886 | case SSL_GOST89MAC: | |
e44380a9 | 1887 | case SSL_GOST89MAC12: |
0f113f3e MC |
1888 | mac = "GOST89"; |
1889 | break; | |
1890 | case SSL_GOST94: | |
1891 | mac = "GOST94"; | |
1892 | break; | |
e44380a9 DB |
1893 | case SSL_GOST12_256: |
1894 | case SSL_GOST12_512: | |
1895 | mac = "GOST2012"; | |
1896 | break; | |
0f113f3e MC |
1897 | default: |
1898 | mac = "unknown"; | |
1899 | break; | |
1900 | } | |
1901 | ||
361a1191 | 1902 | BIO_snprintf(buf, len, format, cipher->name, ver, kx, au, enc, mac); |
55a9a16f | 1903 | |
bbb4ceb8 | 1904 | return buf; |
0f113f3e | 1905 | } |
d02b48c6 | 1906 | |
b11836a6 | 1907 | const char *SSL_CIPHER_get_version(const SSL_CIPHER *c) |
0f113f3e | 1908 | { |
0f113f3e | 1909 | if (c == NULL) |
baf245ec | 1910 | return "(NONE)"; |
ee3a6c64 VD |
1911 | |
1912 | /* | |
1913 | * Backwards-compatibility crutch. In almost all contexts we report TLS | |
1914 | * 1.0 as "TLSv1", but for ciphers we report "TLSv1.0". | |
1915 | */ | |
1916 | if (c->min_tls == TLS1_VERSION) | |
1917 | return "TLSv1.0"; | |
3eb2aff4 | 1918 | return ssl_protocol_to_string(c->min_tls); |
0f113f3e | 1919 | } |
d02b48c6 RE |
1920 | |
1921 | /* return the actual cipher being used */ | |
0821bcd4 | 1922 | const char *SSL_CIPHER_get_name(const SSL_CIPHER *c) |
0f113f3e MC |
1923 | { |
1924 | if (c != NULL) | |
bbb4ceb8 PY |
1925 | return c->name; |
1926 | return "(NONE)"; | |
1927 | } | |
1928 | ||
1929 | /* return the actual cipher being used in RFC standard name */ | |
1930 | const char *SSL_CIPHER_standard_name(const SSL_CIPHER *c) | |
1931 | { | |
1932 | if (c != NULL) | |
1933 | return c->stdname; | |
1934 | return "(NONE)"; | |
1935 | } | |
1936 | ||
1937 | /* return the OpenSSL name based on given RFC standard name */ | |
1938 | const char *OPENSSL_cipher_name(const char *stdname) | |
1939 | { | |
1940 | const SSL_CIPHER *c; | |
1941 | ||
1942 | if (stdname == NULL) | |
1943 | return "(NONE)"; | |
1944 | c = ssl3_get_cipher_by_std_name(stdname); | |
1945 | return SSL_CIPHER_get_name(c); | |
0f113f3e | 1946 | } |
d02b48c6 | 1947 | |
657e60fa | 1948 | /* number of bits for symmetric cipher */ |
1c86d8fd | 1949 | int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits) |
0f113f3e | 1950 | { |
1c86d8fd | 1951 | int ret = 0; |
0f113f3e MC |
1952 | |
1953 | if (c != NULL) { | |
1954 | if (alg_bits != NULL) | |
a230b26e EK |
1955 | *alg_bits = (int)c->alg_bits; |
1956 | ret = (int)c->strength_bits; | |
0f113f3e | 1957 | } |
90d9e49a | 1958 | return ret; |
0f113f3e | 1959 | } |
d02b48c6 | 1960 | |
90d9e49a | 1961 | uint32_t SSL_CIPHER_get_id(const SSL_CIPHER *c) |
0f113f3e MC |
1962 | { |
1963 | return c->id; | |
1964 | } | |
08557cf2 | 1965 | |
50966bfa PY |
1966 | uint16_t SSL_CIPHER_get_protocol_id(const SSL_CIPHER *c) |
1967 | { | |
1968 | return c->id & 0xFFFF; | |
1969 | } | |
1970 | ||
6b691a5c | 1971 | SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n) |
0f113f3e MC |
1972 | { |
1973 | SSL_COMP *ctmp; | |
1974 | int i, nn; | |
1975 | ||
1976 | if ((n == 0) || (sk == NULL)) | |
26a7d938 | 1977 | return NULL; |
0f113f3e MC |
1978 | nn = sk_SSL_COMP_num(sk); |
1979 | for (i = 0; i < nn; i++) { | |
1980 | ctmp = sk_SSL_COMP_value(sk, i); | |
1981 | if (ctmp->id == n) | |
bbb4ceb8 | 1982 | return ctmp; |
0f113f3e | 1983 | } |
bbb4ceb8 | 1984 | return NULL; |
0f113f3e | 1985 | } |
413c4f45 | 1986 | |
09b6c2ef | 1987 | #ifdef OPENSSL_NO_COMP |
9a555706 | 1988 | STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) |
0f113f3e MC |
1989 | { |
1990 | return NULL; | |
1991 | } | |
a230b26e | 1992 | |
9a555706 RS |
1993 | STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) |
1994 | *meths) | |
0f113f3e | 1995 | { |
9a555706 | 1996 | return meths; |
0f113f3e | 1997 | } |
a230b26e | 1998 | |
9a555706 RS |
1999 | int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) |
2000 | { | |
2001 | return 1; | |
2002 | } | |
2003 | ||
09b6c2ef | 2004 | #else |
6b691a5c | 2005 | STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) |
0f113f3e MC |
2006 | { |
2007 | load_builtin_compressions(); | |
bbb4ceb8 | 2008 | return ssl_comp_methods; |
0f113f3e MC |
2009 | } |
2010 | ||
2011 | STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) | |
2012 | *meths) | |
2013 | { | |
2014 | STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods; | |
2015 | ssl_comp_methods = meths; | |
2016 | return old_meths; | |
2017 | } | |
cbb67448 | 2018 | |
db7b5e0d | 2019 | static void cmeth_free(SSL_COMP *cm) |
0f113f3e MC |
2020 | { |
2021 | OPENSSL_free(cm); | |
2022 | } | |
db7b5e0d | 2023 | |
b3599dbb | 2024 | void ssl_comp_free_compression_methods_int(void) |
0f113f3e MC |
2025 | { |
2026 | STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods; | |
2027 | ssl_comp_methods = NULL; | |
2028 | sk_SSL_COMP_pop_free(old_meths, cmeth_free); | |
2029 | } | |
db7b5e0d | 2030 | |
6b691a5c | 2031 | int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) |
0f113f3e MC |
2032 | { |
2033 | SSL_COMP *comp; | |
413c4f45 | 2034 | |
9a555706 | 2035 | if (cm == NULL || COMP_get_type(cm) == NID_undef) |
0f113f3e | 2036 | return 1; |
9f495243 | 2037 | |
50e735f9 MC |
2038 | /*- |
2039 | * According to draft-ietf-tls-compression-04.txt, the | |
2040 | * compression number ranges should be the following: | |
2041 | * | |
2042 | * 0 to 63: methods defined by the IETF | |
2043 | * 64 to 192: external party methods assigned by IANA | |
2044 | * 193 to 255: reserved for private use | |
2045 | */ | |
0f113f3e | 2046 | if (id < 193 || id > 255) { |
6849b73c | 2047 | ERR_raise(ERR_LIB_SSL, SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE); |
e0670973 | 2048 | return 1; |
0f113f3e MC |
2049 | } |
2050 | ||
b4faea50 | 2051 | comp = OPENSSL_malloc(sizeof(*comp)); |
e077455e | 2052 | if (comp == NULL) |
bbb4ceb8 | 2053 | return 1; |
0f113f3e MC |
2054 | |
2055 | comp->id = id; | |
2056 | comp->method = cm; | |
2057 | load_builtin_compressions(); | |
2058 | if (ssl_comp_methods && sk_SSL_COMP_find(ssl_comp_methods, comp) >= 0) { | |
2059 | OPENSSL_free(comp); | |
6849b73c | 2060 | ERR_raise(ERR_LIB_SSL, SSL_R_DUPLICATE_COMPRESSION_ID); |
bbb4ceb8 | 2061 | return 1; |
bbd86bf5 | 2062 | } |
a230b26e | 2063 | if (ssl_comp_methods == NULL || !sk_SSL_COMP_push(ssl_comp_methods, comp)) { |
0f113f3e | 2064 | OPENSSL_free(comp); |
e077455e | 2065 | ERR_raise(ERR_LIB_SSL, ERR_R_CRYPTO_LIB); |
bbb4ceb8 | 2066 | return 1; |
0f113f3e | 2067 | } |
bbb4ceb8 | 2068 | return 0; |
0f113f3e | 2069 | } |
9a555706 | 2070 | #endif |
377dcdba RL |
2071 | |
2072 | const char *SSL_COMP_get_name(const COMP_METHOD *comp) | |
0f113f3e | 2073 | { |
9a555706 RS |
2074 | #ifndef OPENSSL_NO_COMP |
2075 | return comp ? COMP_get_name(comp) : NULL; | |
2076 | #else | |
0f113f3e | 2077 | return NULL; |
09b6c2ef | 2078 | #endif |
9a555706 RS |
2079 | } |
2080 | ||
e304d3e2 MC |
2081 | const char *SSL_COMP_get0_name(const SSL_COMP *comp) |
2082 | { | |
2083 | #ifndef OPENSSL_NO_COMP | |
2084 | return comp->name; | |
2085 | #else | |
2086 | return NULL; | |
2087 | #endif | |
2088 | } | |
2089 | ||
2090 | int SSL_COMP_get_id(const SSL_COMP *comp) | |
2091 | { | |
2092 | #ifndef OPENSSL_NO_COMP | |
2093 | return comp->id; | |
2094 | #else | |
2095 | return -1; | |
2096 | #endif | |
2097 | } | |
2098 | ||
38b051a1 TM |
2099 | const SSL_CIPHER *ssl_get_cipher_by_char(SSL_CONNECTION *s, |
2100 | const unsigned char *ptr, | |
60d685d1 | 2101 | int all) |
0f113f3e | 2102 | { |
38b051a1 | 2103 | const SSL_CIPHER *c = SSL_CONNECTION_GET_SSL(s)->method->get_cipher_by_char(ptr); |
1316ca80 | 2104 | |
60d685d1 | 2105 | if (c == NULL || (!all && c->valid == 0)) |
0f113f3e MC |
2106 | return NULL; |
2107 | return c; | |
2108 | } | |
94a209d8 DSH |
2109 | |
2110 | const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr) | |
0f113f3e MC |
2111 | { |
2112 | return ssl->method->get_cipher_by_char(ptr); | |
2113 | } | |
98c9ce2f DSH |
2114 | |
2115 | int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER *c) | |
2116 | { | |
2117 | int i; | |
2118 | if (c == NULL) | |
3ec13237 | 2119 | return NID_undef; |
98c9ce2f DSH |
2120 | i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, c->algorithm_enc); |
2121 | if (i == -1) | |
3ec13237 | 2122 | return NID_undef; |
98c9ce2f DSH |
2123 | return ssl_cipher_table_cipher[i].nid; |
2124 | } | |
2125 | ||
2126 | int SSL_CIPHER_get_digest_nid(const SSL_CIPHER *c) | |
2127 | { | |
1316ca80 TS |
2128 | int i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac); |
2129 | ||
98c9ce2f | 2130 | if (i == -1) |
3ec13237 | 2131 | return NID_undef; |
98c9ce2f DSH |
2132 | return ssl_cipher_table_mac[i].nid; |
2133 | } | |
3ec13237 TS |
2134 | |
2135 | int SSL_CIPHER_get_kx_nid(const SSL_CIPHER *c) | |
2136 | { | |
2137 | int i = ssl_cipher_info_lookup(ssl_cipher_table_kx, c->algorithm_mkey); | |
1316ca80 | 2138 | |
3ec13237 TS |
2139 | if (i == -1) |
2140 | return NID_undef; | |
2141 | return ssl_cipher_table_kx[i].nid; | |
2142 | } | |
2143 | ||
2144 | int SSL_CIPHER_get_auth_nid(const SSL_CIPHER *c) | |
2145 | { | |
1316ca80 TS |
2146 | int i = ssl_cipher_info_lookup(ssl_cipher_table_auth, c->algorithm_auth); |
2147 | ||
3ec13237 TS |
2148 | if (i == -1) |
2149 | return NID_undef; | |
8eb33e4f | 2150 | return ssl_cipher_table_auth[i].nid; |
3ec13237 TS |
2151 | } |
2152 | ||
ba4df682 MC |
2153 | const EVP_MD *SSL_CIPHER_get_handshake_digest(const SSL_CIPHER *c) |
2154 | { | |
72257204 | 2155 | int idx = c->algorithm2 & SSL_HANDSHAKE_MAC_MASK; |
ba4df682 | 2156 | |
ba4df682 MC |
2157 | if (idx < 0 || idx >= SSL_MD_NUM_IDX) |
2158 | return NULL; | |
c8f6c28a | 2159 | return EVP_get_digestbynid(ssl_cipher_table_mac[idx].nid); |
ba4df682 MC |
2160 | } |
2161 | ||
3ec13237 TS |
2162 | int SSL_CIPHER_is_aead(const SSL_CIPHER *c) |
2163 | { | |
2164 | return (c->algorithm_mac & SSL_AEAD) ? 1 : 0; | |
2165 | } | |
045bd047 DW |
2166 | |
2167 | int ssl_cipher_get_overhead(const SSL_CIPHER *c, size_t *mac_overhead, | |
2168 | size_t *int_overhead, size_t *blocksize, | |
2169 | size_t *ext_overhead) | |
2170 | { | |
2171 | size_t mac = 0, in = 0, blk = 0, out = 0; | |
2172 | ||
2173 | /* Some hard-coded numbers for the CCM/Poly1305 MAC overhead | |
2174 | * because there are no handy #defines for those. */ | |
bc326738 | 2175 | if (c->algorithm_enc & (SSL_AESGCM | SSL_ARIAGCM)) { |
045bd047 DW |
2176 | out = EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN; |
2177 | } else if (c->algorithm_enc & (SSL_AES128CCM | SSL_AES256CCM)) { | |
2178 | out = EVP_CCM_TLS_EXPLICIT_IV_LEN + 16; | |
2179 | } else if (c->algorithm_enc & (SSL_AES128CCM8 | SSL_AES256CCM8)) { | |
2180 | out = EVP_CCM_TLS_EXPLICIT_IV_LEN + 8; | |
2181 | } else if (c->algorithm_enc & SSL_CHACHA20POLY1305) { | |
2182 | out = 16; | |
2183 | } else if (c->algorithm_mac & SSL_AEAD) { | |
2184 | /* We're supposed to have handled all the AEAD modes above */ | |
2185 | return 0; | |
2186 | } else { | |
2187 | /* Non-AEAD modes. Calculate MAC/cipher overhead separately */ | |
2188 | int digest_nid = SSL_CIPHER_get_digest_nid(c); | |
2189 | const EVP_MD *e_md = EVP_get_digestbynid(digest_nid); | |
2190 | ||
2191 | if (e_md == NULL) | |
2192 | return 0; | |
2193 | ||
ed576acd | 2194 | mac = EVP_MD_get_size(e_md); |
045bd047 DW |
2195 | if (c->algorithm_enc != SSL_eNULL) { |
2196 | int cipher_nid = SSL_CIPHER_get_cipher_nid(c); | |
2197 | const EVP_CIPHER *e_ciph = EVP_get_cipherbynid(cipher_nid); | |
2198 | ||
2199 | /* If it wasn't AEAD or SSL_eNULL, we expect it to be a | |
2200 | known CBC cipher. */ | |
2201 | if (e_ciph == NULL || | |
ed576acd | 2202 | EVP_CIPHER_get_mode(e_ciph) != EVP_CIPH_CBC_MODE) |
045bd047 DW |
2203 | return 0; |
2204 | ||
2205 | in = 1; /* padding length byte */ | |
ed576acd TM |
2206 | out = EVP_CIPHER_get_iv_length(e_ciph); |
2207 | blk = EVP_CIPHER_get_block_size(e_ciph); | |
045bd047 DW |
2208 | } |
2209 | } | |
2210 | ||
2211 | *mac_overhead = mac; | |
2212 | *int_overhead = in; | |
2213 | *blocksize = blk; | |
2214 | *ext_overhead = out; | |
2215 | ||
2216 | return 1; | |
2217 | } | |
c04cd728 | 2218 | |
a68eee67 | 2219 | int ssl_cert_is_disabled(SSL_CTX *ctx, size_t idx) |
c04cd728 DSH |
2220 | { |
2221 | const SSL_CERT_LOOKUP *cl = ssl_cert_lookup_by_idx(idx); | |
2222 | ||
a68eee67 | 2223 | if (cl == NULL || (cl->amask & ctx->disabled_auth_mask) != 0) |
c04cd728 DSH |
2224 | return 1; |
2225 | return 0; | |
2226 | } | |
5d120511 TS |
2227 | |
2228 | /* | |
2229 | * Default list of TLSv1.2 (and earlier) ciphers | |
2230 | * SSL_DEFAULT_CIPHER_LIST deprecated in 3.0.0 | |
2231 | * Update both macro and function simultaneously | |
2232 | */ | |
2233 | const char *OSSL_default_cipher_list(void) | |
2234 | { | |
2235 | return "ALL:!COMPLEMENTOFDEFAULT:!eNULL"; | |
2236 | } | |
2237 | ||
2238 | /* | |
2239 | * Default list of TLSv1.3 (and later) ciphers | |
2240 | * TLS_DEFAULT_CIPHERSUITES deprecated in 3.0.0 | |
2241 | * Update both macro and function simultaneously | |
2242 | */ | |
2243 | const char *OSSL_default_ciphersuites(void) | |
2244 | { | |
2245 | return "TLS_AES_256_GCM_SHA384:" | |
5d120511 | 2246 | "TLS_CHACHA20_POLY1305_SHA256:" |
5d120511 TS |
2247 | "TLS_AES_128_GCM_SHA256"; |
2248 | } |