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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); | |
5b37fef0 | 535 | *comp = sk_SSL_COMP_value(ssl_comp_methods, i); |
0f113f3e | 536 | } |
69f68237 | 537 | /* If were only interested in comp then return success */ |
61986d32 | 538 | if ((enc == NULL) && (md == NULL)) |
69f68237 | 539 | return 1; |
0f113f3e MC |
540 | } |
541 | ||
542 | if ((enc == NULL) || (md == NULL)) | |
69f68237 | 543 | return 0; |
0f113f3e | 544 | |
9727f4e7 MC |
545 | if (!ssl_cipher_get_evp_cipher(ctx, c, enc)) |
546 | return 0; | |
0f113f3e | 547 | |
98c9ce2f DSH |
548 | i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac); |
549 | if (i == -1) { | |
0f113f3e MC |
550 | *md = NULL; |
551 | if (mac_pkey_type != NULL) | |
552 | *mac_pkey_type = NID_undef; | |
553 | if (mac_secret_size != NULL) | |
554 | *mac_secret_size = 0; | |
555 | if (c->algorithm_mac == SSL_AEAD) | |
556 | mac_pkey_type = NULL; | |
557 | } else { | |
b740012f | 558 | const EVP_MD *digest = ctx->ssl_digest_methods[i]; |
559 | ||
560 | if (digest == NULL | |
561 | || !ssl_evp_md_up_ref(digest)) { | |
c8f6c28a MC |
562 | ssl_evp_cipher_free(*enc); |
563 | return 0; | |
564 | } | |
b740012f | 565 | *md = digest; |
0f113f3e | 566 | if (mac_pkey_type != NULL) |
53d85372 | 567 | *mac_pkey_type = ctx->ssl_mac_pkey_id[i]; |
0f113f3e | 568 | if (mac_secret_size != NULL) |
c8f6c28a | 569 | *mac_secret_size = ctx->ssl_mac_secret_size[i]; |
0f113f3e MC |
570 | } |
571 | ||
ed576acd TM |
572 | if ((*enc != NULL) |
573 | && (*md != NULL | |
574 | || (EVP_CIPHER_get_flags(*enc) & EVP_CIPH_FLAG_AEAD_CIPHER)) | |
0f113f3e | 575 | && (!mac_pkey_type || *mac_pkey_type != NID_undef)) { |
c8f6c28a | 576 | const EVP_CIPHER *evp = NULL; |
0f113f3e | 577 | |
c8f6c28a MC |
578 | if (use_etm |
579 | || s->ssl_version >> 8 != TLS1_VERSION_MAJOR | |
580 | || s->ssl_version < TLS1_VERSION) | |
0f113f3e MC |
581 | return 1; |
582 | ||
c8f6c28a MC |
583 | if (c->algorithm_enc == SSL_RC4 |
584 | && c->algorithm_mac == SSL_MD5) | |
585 | evp = ssl_evp_cipher_fetch(ctx->libctx, NID_rc4_hmac_md5, | |
586 | ctx->propq); | |
587 | else if (c->algorithm_enc == SSL_AES128 | |
588 | && c->algorithm_mac == SSL_SHA1) | |
589 | evp = ssl_evp_cipher_fetch(ctx->libctx, | |
590 | NID_aes_128_cbc_hmac_sha1, | |
591 | ctx->propq); | |
592 | else if (c->algorithm_enc == SSL_AES256 | |
593 | && c->algorithm_mac == SSL_SHA1) | |
594 | evp = ssl_evp_cipher_fetch(ctx->libctx, | |
595 | NID_aes_256_cbc_hmac_sha1, | |
596 | ctx->propq); | |
597 | else if (c->algorithm_enc == SSL_AES128 | |
598 | && c->algorithm_mac == SSL_SHA256) | |
599 | evp = ssl_evp_cipher_fetch(ctx->libctx, | |
600 | NID_aes_128_cbc_hmac_sha256, | |
601 | ctx->propq); | |
602 | else if (c->algorithm_enc == SSL_AES256 | |
603 | && c->algorithm_mac == SSL_SHA256) | |
604 | evp = ssl_evp_cipher_fetch(ctx->libctx, | |
605 | NID_aes_256_cbc_hmac_sha256, | |
606 | ctx->propq); | |
607 | ||
608 | if (evp != NULL) { | |
609 | ssl_evp_cipher_free(*enc); | |
610 | ssl_evp_md_free(*md); | |
611 | *enc = evp; | |
612 | *md = NULL; | |
613 | } | |
bbb4ceb8 | 614 | return 1; |
bbb4ceb8 | 615 | } |
c8f6c28a MC |
616 | |
617 | return 0; | |
0f113f3e MC |
618 | } |
619 | ||
c8f6c28a | 620 | const EVP_MD *ssl_md(SSL_CTX *ctx, int idx) |
81025661 | 621 | { |
28ba2541 DSH |
622 | idx &= SSL_HANDSHAKE_MAC_MASK; |
623 | if (idx < 0 || idx >= SSL_MD_NUM_IDX) | |
624 | return NULL; | |
c8f6c28a | 625 | return ctx->ssl_digest_methods[idx]; |
28ba2541 DSH |
626 | } |
627 | ||
38b051a1 | 628 | const EVP_MD *ssl_handshake_md(SSL_CONNECTION *s) |
28ba2541 | 629 | { |
38b051a1 | 630 | return ssl_md(SSL_CONNECTION_GET_CTX(s), ssl_get_algorithm2(s)); |
28ba2541 DSH |
631 | } |
632 | ||
38b051a1 | 633 | const EVP_MD *ssl_prf_md(SSL_CONNECTION *s) |
28ba2541 | 634 | { |
38b051a1 TM |
635 | return ssl_md(SSL_CONNECTION_GET_CTX(s), |
636 | ssl_get_algorithm2(s) >> TLS1_PRF_DGST_SHIFT); | |
81025661 DSH |
637 | } |
638 | ||
58964a49 | 639 | #define ITEM_SEP(a) \ |
0f113f3e | 640 | (((a) == ':') || ((a) == ' ') || ((a) == ';') || ((a) == ',')) |
58964a49 | 641 | |
6b691a5c | 642 | static void ll_append_tail(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
0f113f3e MC |
643 | CIPHER_ORDER **tail) |
644 | { | |
645 | if (curr == *tail) | |
646 | return; | |
647 | if (curr == *head) | |
648 | *head = curr->next; | |
649 | if (curr->prev != NULL) | |
650 | curr->prev->next = curr->next; | |
651 | if (curr->next != NULL) | |
652 | curr->next->prev = curr->prev; | |
653 | (*tail)->next = curr; | |
654 | curr->prev = *tail; | |
655 | curr->next = NULL; | |
656 | *tail = curr; | |
657 | } | |
58964a49 | 658 | |
fd5bc65c | 659 | static void ll_append_head(CIPHER_ORDER **head, CIPHER_ORDER *curr, |
0f113f3e MC |
660 | CIPHER_ORDER **tail) |
661 | { | |
662 | if (curr == *head) | |
663 | return; | |
664 | if (curr == *tail) | |
665 | *tail = curr->prev; | |
666 | if (curr->next != NULL) | |
667 | curr->next->prev = curr->prev; | |
668 | if (curr->prev != NULL) | |
669 | curr->prev->next = curr->next; | |
670 | (*head)->prev = curr; | |
671 | curr->next = *head; | |
672 | curr->prev = NULL; | |
673 | *head = curr; | |
674 | } | |
675 | ||
018e57c7 | 676 | static void ssl_cipher_collect_ciphers(const SSL_METHOD *ssl_method, |
0f113f3e | 677 | int num_of_ciphers, |
90d9e49a DSH |
678 | uint32_t disabled_mkey, |
679 | uint32_t disabled_auth, | |
680 | uint32_t disabled_enc, | |
681 | uint32_t disabled_mac, | |
0f113f3e MC |
682 | CIPHER_ORDER *co_list, |
683 | CIPHER_ORDER **head_p, | |
684 | CIPHER_ORDER **tail_p) | |
685 | { | |
686 | int i, co_list_num; | |
687 | const SSL_CIPHER *c; | |
688 | ||
689 | /* | |
690 | * We have num_of_ciphers descriptions compiled in, depending on the | |
691 | * method selected (SSLv3, TLSv1 etc). | |
692 | * These will later be sorted in a linked list with at most num | |
693 | * entries. | |
694 | */ | |
695 | ||
696 | /* Get the initial list of ciphers */ | |
697 | co_list_num = 0; /* actual count of ciphers */ | |
698 | for (i = 0; i < num_of_ciphers; i++) { | |
699 | c = ssl_method->get_cipher(i); | |
700 | /* drop those that use any of that is not available */ | |
ca3895f0 KR |
701 | if (c == NULL || !c->valid) |
702 | continue; | |
ca3895f0 KR |
703 | if ((c->algorithm_mkey & disabled_mkey) || |
704 | (c->algorithm_auth & disabled_auth) || | |
705 | (c->algorithm_enc & disabled_enc) || | |
706 | (c->algorithm_mac & disabled_mac)) | |
707 | continue; | |
708 | if (((ssl_method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) == 0) && | |
709 | c->min_tls == 0) | |
710 | continue; | |
711 | if (((ssl_method->ssl3_enc->enc_flags & SSL_ENC_FLAG_DTLS) != 0) && | |
712 | c->min_dtls == 0) | |
713 | continue; | |
714 | ||
715 | co_list[co_list_num].cipher = c; | |
716 | co_list[co_list_num].next = NULL; | |
717 | co_list[co_list_num].prev = NULL; | |
718 | co_list[co_list_num].active = 0; | |
719 | co_list_num++; | |
0f113f3e MC |
720 | } |
721 | ||
722 | /* | |
723 | * Prepare linked list from list entries | |
724 | */ | |
725 | if (co_list_num > 0) { | |
726 | co_list[0].prev = NULL; | |
727 | ||
728 | if (co_list_num > 1) { | |
729 | co_list[0].next = &co_list[1]; | |
730 | ||
731 | for (i = 1; i < co_list_num - 1; i++) { | |
732 | co_list[i].prev = &co_list[i - 1]; | |
733 | co_list[i].next = &co_list[i + 1]; | |
734 | } | |
735 | ||
736 | co_list[co_list_num - 1].prev = &co_list[co_list_num - 2]; | |
737 | } | |
738 | ||
739 | co_list[co_list_num - 1].next = NULL; | |
740 | ||
741 | *head_p = &co_list[0]; | |
742 | *tail_p = &co_list[co_list_num - 1]; | |
743 | } | |
744 | } | |
d02b48c6 | 745 | |
babb3798 | 746 | static void ssl_cipher_collect_aliases(const SSL_CIPHER **ca_list, |
0f113f3e | 747 | int num_of_group_aliases, |
90d9e49a DSH |
748 | uint32_t disabled_mkey, |
749 | uint32_t disabled_auth, | |
750 | uint32_t disabled_enc, | |
751 | uint32_t disabled_mac, | |
0f113f3e MC |
752 | CIPHER_ORDER *head) |
753 | { | |
754 | CIPHER_ORDER *ciph_curr; | |
755 | const SSL_CIPHER **ca_curr; | |
756 | int i; | |
90d9e49a DSH |
757 | uint32_t mask_mkey = ~disabled_mkey; |
758 | uint32_t mask_auth = ~disabled_auth; | |
759 | uint32_t mask_enc = ~disabled_enc; | |
760 | uint32_t mask_mac = ~disabled_mac; | |
0f113f3e MC |
761 | |
762 | /* | |
763 | * First, add the real ciphers as already collected | |
764 | */ | |
765 | ciph_curr = head; | |
766 | ca_curr = ca_list; | |
767 | while (ciph_curr != NULL) { | |
768 | *ca_curr = ciph_curr->cipher; | |
769 | ca_curr++; | |
770 | ciph_curr = ciph_curr->next; | |
771 | } | |
772 | ||
773 | /* | |
774 | * Now we add the available ones from the cipher_aliases[] table. | |
775 | * They represent either one or more algorithms, some of which | |
776 | * in any affected category must be supported (set in enabled_mask), | |
777 | * or represent a cipher strength value (will be added in any case because algorithms=0). | |
778 | */ | |
779 | for (i = 0; i < num_of_group_aliases; i++) { | |
90d9e49a DSH |
780 | uint32_t algorithm_mkey = cipher_aliases[i].algorithm_mkey; |
781 | uint32_t algorithm_auth = cipher_aliases[i].algorithm_auth; | |
782 | uint32_t algorithm_enc = cipher_aliases[i].algorithm_enc; | |
783 | uint32_t algorithm_mac = cipher_aliases[i].algorithm_mac; | |
0f113f3e MC |
784 | |
785 | if (algorithm_mkey) | |
786 | if ((algorithm_mkey & mask_mkey) == 0) | |
787 | continue; | |
788 | ||
789 | if (algorithm_auth) | |
790 | if ((algorithm_auth & mask_auth) == 0) | |
791 | continue; | |
792 | ||
793 | if (algorithm_enc) | |
794 | if ((algorithm_enc & mask_enc) == 0) | |
795 | continue; | |
796 | ||
797 | if (algorithm_mac) | |
798 | if ((algorithm_mac & mask_mac) == 0) | |
799 | continue; | |
800 | ||
0f113f3e MC |
801 | *ca_curr = (SSL_CIPHER *)(cipher_aliases + i); |
802 | ca_curr++; | |
803 | } | |
804 | ||
805 | *ca_curr = NULL; /* end of list */ | |
806 | } | |
d02b48c6 | 807 | |
90d9e49a DSH |
808 | static void ssl_cipher_apply_rule(uint32_t cipher_id, uint32_t alg_mkey, |
809 | uint32_t alg_auth, uint32_t alg_enc, | |
3eb2aff4 | 810 | uint32_t alg_mac, int min_tls, |
90d9e49a DSH |
811 | uint32_t algo_strength, int rule, |
812 | int32_t strength_bits, CIPHER_ORDER **head_p, | |
0f113f3e MC |
813 | CIPHER_ORDER **tail_p) |
814 | { | |
815 | CIPHER_ORDER *head, *tail, *curr, *next, *last; | |
816 | const SSL_CIPHER *cp; | |
817 | int reverse = 0; | |
018e57c7 | 818 | |
1287dabd | 819 | OSSL_TRACE_BEGIN(TLS_CIPHER) { |
77359d22 RL |
820 | BIO_printf(trc_out, |
821 | "Applying rule %d with %08x/%08x/%08x/%08x/%08x %08x (%d)\n", | |
822 | rule, alg_mkey, alg_auth, alg_enc, alg_mac, min_tls, | |
823 | algo_strength, strength_bits); | |
824 | } | |
d02b48c6 | 825 | |
a556f342 | 826 | if (rule == CIPHER_DEL || rule == CIPHER_BUMP) |
a230b26e EK |
827 | reverse = 1; /* needed to maintain sorting between currently |
828 | * deleted ciphers */ | |
0f113f3e MC |
829 | |
830 | head = *head_p; | |
831 | tail = *tail_p; | |
832 | ||
833 | if (reverse) { | |
834 | next = tail; | |
835 | last = head; | |
836 | } else { | |
837 | next = head; | |
838 | last = tail; | |
839 | } | |
840 | ||
841 | curr = NULL; | |
842 | for (;;) { | |
843 | if (curr == last) | |
844 | break; | |
845 | ||
846 | curr = next; | |
847 | ||
848 | if (curr == NULL) | |
849 | break; | |
850 | ||
851 | next = reverse ? curr->prev : curr->next; | |
852 | ||
853 | cp = curr->cipher; | |
854 | ||
855 | /* | |
856 | * Selection criteria is either the value of strength_bits | |
857 | * or the algorithms used. | |
858 | */ | |
859 | if (strength_bits >= 0) { | |
860 | if (strength_bits != cp->strength_bits) | |
861 | continue; | |
862 | } else { | |
77359d22 RL |
863 | if (trc_out != NULL) { |
864 | BIO_printf(trc_out, | |
865 | "\nName: %s:" | |
866 | "\nAlgo = %08x/%08x/%08x/%08x/%08x Algo_strength = %08x\n", | |
867 | cp->name, cp->algorithm_mkey, cp->algorithm_auth, | |
868 | cp->algorithm_enc, cp->algorithm_mac, cp->min_tls, | |
869 | cp->algo_strength); | |
870 | } | |
0ced42e0 MC |
871 | if (cipher_id != 0 && (cipher_id != cp->id)) |
872 | continue; | |
0f113f3e MC |
873 | if (alg_mkey && !(alg_mkey & cp->algorithm_mkey)) |
874 | continue; | |
875 | if (alg_auth && !(alg_auth & cp->algorithm_auth)) | |
876 | continue; | |
877 | if (alg_enc && !(alg_enc & cp->algorithm_enc)) | |
878 | continue; | |
879 | if (alg_mac && !(alg_mac & cp->algorithm_mac)) | |
880 | continue; | |
3eb2aff4 | 881 | if (min_tls && (min_tls != cp->min_tls)) |
0f113f3e | 882 | continue; |
88a9614b KR |
883 | if ((algo_strength & SSL_STRONG_MASK) |
884 | && !(algo_strength & SSL_STRONG_MASK & cp->algo_strength)) | |
0f113f3e | 885 | continue; |
c84f7f4a MC |
886 | if ((algo_strength & SSL_DEFAULT_MASK) |
887 | && !(algo_strength & SSL_DEFAULT_MASK & cp->algo_strength)) | |
888 | continue; | |
0f113f3e | 889 | } |
018e57c7 | 890 | |
77359d22 RL |
891 | if (trc_out != NULL) |
892 | BIO_printf(trc_out, "Action = %d\n", rule); | |
018e57c7 | 893 | |
0f113f3e MC |
894 | /* add the cipher if it has not been added yet. */ |
895 | if (rule == CIPHER_ADD) { | |
896 | /* reverse == 0 */ | |
897 | if (!curr->active) { | |
898 | ll_append_tail(&head, curr, &tail); | |
899 | curr->active = 1; | |
900 | } | |
901 | } | |
902 | /* Move the added cipher to this location */ | |
903 | else if (rule == CIPHER_ORD) { | |
904 | /* reverse == 0 */ | |
905 | if (curr->active) { | |
906 | ll_append_tail(&head, curr, &tail); | |
907 | } | |
908 | } else if (rule == CIPHER_DEL) { | |
909 | /* reverse == 1 */ | |
910 | if (curr->active) { | |
911 | /* | |
912 | * most recently deleted ciphersuites get best positions for | |
913 | * any future CIPHER_ADD (note that the CIPHER_DEL loop works | |
914 | * in reverse to maintain the order) | |
915 | */ | |
916 | ll_append_head(&head, curr, &tail); | |
917 | curr->active = 0; | |
918 | } | |
a556f342 EK |
919 | } else if (rule == CIPHER_BUMP) { |
920 | if (curr->active) | |
921 | ll_append_head(&head, curr, &tail); | |
0f113f3e MC |
922 | } else if (rule == CIPHER_KILL) { |
923 | /* reverse == 0 */ | |
924 | if (head == curr) | |
925 | head = curr->next; | |
926 | else | |
927 | curr->prev->next = curr->next; | |
928 | if (tail == curr) | |
929 | tail = curr->prev; | |
930 | curr->active = 0; | |
931 | if (curr->next != NULL) | |
932 | curr->next->prev = curr->prev; | |
933 | if (curr->prev != NULL) | |
934 | curr->prev->next = curr->next; | |
935 | curr->next = NULL; | |
936 | curr->prev = NULL; | |
937 | } | |
938 | } | |
939 | ||
940 | *head_p = head; | |
941 | *tail_p = tail; | |
77359d22 RL |
942 | |
943 | OSSL_TRACE_END(TLS_CIPHER); | |
0f113f3e | 944 | } |
018e57c7 | 945 | |
a717831d | 946 | static int ssl_cipher_strength_sort(CIPHER_ORDER **head_p, |
0f113f3e MC |
947 | CIPHER_ORDER **tail_p) |
948 | { | |
90d9e49a DSH |
949 | int32_t max_strength_bits; |
950 | int i, *number_uses; | |
0f113f3e MC |
951 | CIPHER_ORDER *curr; |
952 | ||
953 | /* | |
954 | * This routine sorts the ciphers with descending strength. The sorting | |
955 | * must keep the pre-sorted sequence, so we apply the normal sorting | |
956 | * routine as '+' movement to the end of the list. | |
957 | */ | |
958 | max_strength_bits = 0; | |
959 | curr = *head_p; | |
960 | while (curr != NULL) { | |
961 | if (curr->active && (curr->cipher->strength_bits > max_strength_bits)) | |
962 | max_strength_bits = curr->cipher->strength_bits; | |
963 | curr = curr->next; | |
964 | } | |
965 | ||
b51bce94 | 966 | number_uses = OPENSSL_zalloc(sizeof(int) * (max_strength_bits + 1)); |
a71edf3b | 967 | if (number_uses == NULL) { |
6849b73c | 968 | ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE); |
bbb4ceb8 | 969 | return 0; |
0f113f3e | 970 | } |
0f113f3e MC |
971 | |
972 | /* | |
973 | * Now find the strength_bits values actually used | |
974 | */ | |
975 | curr = *head_p; | |
976 | while (curr != NULL) { | |
977 | if (curr->active) | |
978 | number_uses[curr->cipher->strength_bits]++; | |
979 | curr = curr->next; | |
980 | } | |
981 | /* | |
982 | * Go through the list of used strength_bits values in descending | |
983 | * order. | |
984 | */ | |
985 | for (i = max_strength_bits; i >= 0; i--) | |
986 | if (number_uses[i] > 0) | |
987 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ORD, i, head_p, | |
988 | tail_p); | |
989 | ||
990 | OPENSSL_free(number_uses); | |
bbb4ceb8 | 991 | return 1; |
0f113f3e | 992 | } |
018e57c7 DSH |
993 | |
994 | static int ssl_cipher_process_rulestr(const char *rule_str, | |
0f113f3e MC |
995 | CIPHER_ORDER **head_p, |
996 | CIPHER_ORDER **tail_p, | |
997 | const SSL_CIPHER **ca_list, CERT *c) | |
998 | { | |
3eb2aff4 KR |
999 | uint32_t alg_mkey, alg_auth, alg_enc, alg_mac, algo_strength; |
1000 | int min_tls; | |
0f113f3e MC |
1001 | const char *l, *buf; |
1002 | int j, multi, found, rule, retval, ok, buflen; | |
90d9e49a | 1003 | uint32_t cipher_id = 0; |
0f113f3e MC |
1004 | char ch; |
1005 | ||
1006 | retval = 1; | |
1007 | l = rule_str; | |
1287dabd | 1008 | for (;;) { |
0f113f3e MC |
1009 | ch = *l; |
1010 | ||
1011 | if (ch == '\0') | |
1012 | break; /* done */ | |
1013 | if (ch == '-') { | |
1014 | rule = CIPHER_DEL; | |
1015 | l++; | |
1016 | } else if (ch == '+') { | |
1017 | rule = CIPHER_ORD; | |
1018 | l++; | |
1019 | } else if (ch == '!') { | |
1020 | rule = CIPHER_KILL; | |
1021 | l++; | |
1022 | } else if (ch == '@') { | |
1023 | rule = CIPHER_SPECIAL; | |
1024 | l++; | |
1025 | } else { | |
1026 | rule = CIPHER_ADD; | |
1027 | } | |
1028 | ||
1029 | if (ITEM_SEP(ch)) { | |
1030 | l++; | |
1031 | continue; | |
1032 | } | |
1033 | ||
1034 | alg_mkey = 0; | |
1035 | alg_auth = 0; | |
1036 | alg_enc = 0; | |
1037 | alg_mac = 0; | |
3eb2aff4 | 1038 | min_tls = 0; |
0f113f3e MC |
1039 | algo_strength = 0; |
1040 | ||
1041 | for (;;) { | |
1042 | ch = *l; | |
1043 | buf = l; | |
1044 | buflen = 0; | |
ca570cfd | 1045 | #ifndef CHARSET_EBCDIC |
0f113f3e MC |
1046 | while (((ch >= 'A') && (ch <= 'Z')) || |
1047 | ((ch >= '0') && (ch <= '9')) || | |
1048 | ((ch >= 'a') && (ch <= 'z')) || | |
d1b26ddb | 1049 | (ch == '-') || (ch == '_') || (ch == '.') || (ch == '=')) |
ca570cfd | 1050 | #else |
d1b26ddb | 1051 | while (isalnum((unsigned char)ch) || (ch == '-') || (ch == '_') || (ch == '.') |
00dfbaad | 1052 | || (ch == '=')) |
ca570cfd | 1053 | #endif |
0f113f3e MC |
1054 | { |
1055 | ch = *(++l); | |
1056 | buflen++; | |
1057 | } | |
1058 | ||
1059 | if (buflen == 0) { | |
1060 | /* | |
1061 | * We hit something we cannot deal with, | |
1062 | * it is no command or separator nor | |
1063 | * alphanumeric, so we call this an error. | |
1064 | */ | |
6849b73c | 1065 | ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_COMMAND); |
0f113f3e MC |
1066 | retval = found = 0; |
1067 | l++; | |
1068 | break; | |
1069 | } | |
1070 | ||
1071 | if (rule == CIPHER_SPECIAL) { | |
1072 | found = 0; /* unused -- avoid compiler warning */ | |
1073 | break; /* special treatment */ | |
1074 | } | |
1075 | ||
1076 | /* check for multi-part specification */ | |
1077 | if (ch == '+') { | |
1078 | multi = 1; | |
1079 | l++; | |
bbb4ceb8 | 1080 | } else { |
0f113f3e | 1081 | multi = 0; |
bbb4ceb8 | 1082 | } |
0f113f3e MC |
1083 | |
1084 | /* | |
1085 | * Now search for the cipher alias in the ca_list. Be careful | |
1086 | * with the strncmp, because the "buflen" limitation | |
1087 | * will make the rule "ADH:SOME" and the cipher | |
1088 | * "ADH-MY-CIPHER" look like a match for buflen=3. | |
1089 | * So additionally check whether the cipher name found | |
1090 | * has the correct length. We can save a strlen() call: | |
1091 | * just checking for the '\0' at the right place is | |
1092 | * sufficient, we have to strncmp() anyway. (We cannot | |
1093 | * use strcmp(), because buf is not '\0' terminated.) | |
1094 | */ | |
1095 | j = found = 0; | |
1096 | cipher_id = 0; | |
1097 | while (ca_list[j]) { | |
86885c28 RS |
1098 | if (strncmp(buf, ca_list[j]->name, buflen) == 0 |
1099 | && (ca_list[j]->name[buflen] == '\0')) { | |
0f113f3e MC |
1100 | found = 1; |
1101 | break; | |
d1b26ddb EL |
1102 | } else if (ca_list[j]->stdname != NULL |
1103 | && strncmp(buf, ca_list[j]->stdname, buflen) == 0 | |
1104 | && ca_list[j]->stdname[buflen] == '\0') { | |
1105 | found = 1; | |
1106 | break; | |
0f113f3e MC |
1107 | } else |
1108 | j++; | |
1109 | } | |
1110 | ||
1111 | if (!found) | |
1112 | break; /* ignore this entry */ | |
1113 | ||
1114 | if (ca_list[j]->algorithm_mkey) { | |
1115 | if (alg_mkey) { | |
1116 | alg_mkey &= ca_list[j]->algorithm_mkey; | |
1117 | if (!alg_mkey) { | |
1118 | found = 0; | |
1119 | break; | |
1120 | } | |
bbb4ceb8 | 1121 | } else { |
0f113f3e | 1122 | alg_mkey = ca_list[j]->algorithm_mkey; |
bbb4ceb8 | 1123 | } |
0f113f3e MC |
1124 | } |
1125 | ||
1126 | if (ca_list[j]->algorithm_auth) { | |
1127 | if (alg_auth) { | |
1128 | alg_auth &= ca_list[j]->algorithm_auth; | |
1129 | if (!alg_auth) { | |
1130 | found = 0; | |
1131 | break; | |
1132 | } | |
bbb4ceb8 | 1133 | } else { |
0f113f3e | 1134 | alg_auth = ca_list[j]->algorithm_auth; |
bbb4ceb8 | 1135 | } |
0f113f3e MC |
1136 | } |
1137 | ||
1138 | if (ca_list[j]->algorithm_enc) { | |
1139 | if (alg_enc) { | |
1140 | alg_enc &= ca_list[j]->algorithm_enc; | |
1141 | if (!alg_enc) { | |
1142 | found = 0; | |
1143 | break; | |
1144 | } | |
bbb4ceb8 | 1145 | } else { |
0f113f3e | 1146 | alg_enc = ca_list[j]->algorithm_enc; |
bbb4ceb8 | 1147 | } |
0f113f3e MC |
1148 | } |
1149 | ||
1150 | if (ca_list[j]->algorithm_mac) { | |
1151 | if (alg_mac) { | |
1152 | alg_mac &= ca_list[j]->algorithm_mac; | |
1153 | if (!alg_mac) { | |
1154 | found = 0; | |
1155 | break; | |
1156 | } | |
bbb4ceb8 | 1157 | } else { |
0f113f3e | 1158 | alg_mac = ca_list[j]->algorithm_mac; |
bbb4ceb8 | 1159 | } |
0f113f3e MC |
1160 | } |
1161 | ||
88a9614b KR |
1162 | if (ca_list[j]->algo_strength & SSL_STRONG_MASK) { |
1163 | if (algo_strength & SSL_STRONG_MASK) { | |
1164 | algo_strength &= | |
1165 | (ca_list[j]->algo_strength & SSL_STRONG_MASK) | | |
1166 | ~SSL_STRONG_MASK; | |
1167 | if (!(algo_strength & SSL_STRONG_MASK)) { | |
0f113f3e MC |
1168 | found = 0; |
1169 | break; | |
1170 | } | |
bbb4ceb8 | 1171 | } else { |
88a9614b | 1172 | algo_strength = ca_list[j]->algo_strength & SSL_STRONG_MASK; |
bbb4ceb8 | 1173 | } |
0f113f3e MC |
1174 | } |
1175 | ||
c84f7f4a MC |
1176 | if (ca_list[j]->algo_strength & SSL_DEFAULT_MASK) { |
1177 | if (algo_strength & SSL_DEFAULT_MASK) { | |
1178 | algo_strength &= | |
1179 | (ca_list[j]->algo_strength & SSL_DEFAULT_MASK) | | |
1180 | ~SSL_DEFAULT_MASK; | |
1181 | if (!(algo_strength & SSL_DEFAULT_MASK)) { | |
1182 | found = 0; | |
1183 | break; | |
1184 | } | |
bbb4ceb8 | 1185 | } else { |
c84f7f4a MC |
1186 | algo_strength |= |
1187 | ca_list[j]->algo_strength & SSL_DEFAULT_MASK; | |
bbb4ceb8 | 1188 | } |
c84f7f4a MC |
1189 | } |
1190 | ||
0f113f3e MC |
1191 | if (ca_list[j]->valid) { |
1192 | /* | |
1193 | * explicit ciphersuite found; its protocol version does not | |
1194 | * become part of the search pattern! | |
1195 | */ | |
1196 | ||
1197 | cipher_id = ca_list[j]->id; | |
1198 | } else { | |
1199 | /* | |
1200 | * not an explicit ciphersuite; only in this case, the | |
1201 | * protocol version is considered part of the search pattern | |
1202 | */ | |
1203 | ||
3eb2aff4 KR |
1204 | if (ca_list[j]->min_tls) { |
1205 | if (min_tls != 0 && min_tls != ca_list[j]->min_tls) { | |
1206 | found = 0; | |
1207 | break; | |
1208 | } else { | |
1209 | min_tls = ca_list[j]->min_tls; | |
1210 | } | |
0f113f3e MC |
1211 | } |
1212 | } | |
1213 | ||
1214 | if (!multi) | |
1215 | break; | |
1216 | } | |
1217 | ||
1218 | /* | |
1219 | * Ok, we have the rule, now apply it | |
1220 | */ | |
1221 | if (rule == CIPHER_SPECIAL) { /* special command */ | |
1222 | ok = 0; | |
2ff286c2 | 1223 | if ((buflen == 8) && HAS_PREFIX(buf, "STRENGTH")) { |
0f113f3e | 1224 | ok = ssl_cipher_strength_sort(head_p, tail_p); |
2ff286c2 DDO |
1225 | } else if (buflen == 10 && CHECK_AND_SKIP_PREFIX(buf, "SECLEVEL=")) { |
1226 | int level = *buf - '0'; | |
0f113f3e | 1227 | if (level < 0 || level > 5) { |
6849b73c | 1228 | ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_COMMAND); |
0f113f3e MC |
1229 | } else { |
1230 | c->sec_level = level; | |
1231 | ok = 1; | |
1232 | } | |
bbb4ceb8 | 1233 | } else { |
6849b73c | 1234 | ERR_raise(ERR_LIB_SSL, SSL_R_INVALID_COMMAND); |
bbb4ceb8 | 1235 | } |
0f113f3e MC |
1236 | if (ok == 0) |
1237 | retval = 0; | |
1238 | /* | |
1239 | * We do not support any "multi" options | |
1240 | * together with "@", so throw away the | |
1241 | * rest of the command, if any left, until | |
1242 | * end or ':' is found. | |
1243 | */ | |
1244 | while ((*l != '\0') && !ITEM_SEP(*l)) | |
1245 | l++; | |
1246 | } else if (found) { | |
1247 | ssl_cipher_apply_rule(cipher_id, | |
1248 | alg_mkey, alg_auth, alg_enc, alg_mac, | |
3eb2aff4 | 1249 | min_tls, algo_strength, rule, -1, head_p, |
0f113f3e MC |
1250 | tail_p); |
1251 | } else { | |
1252 | while ((*l != '\0') && !ITEM_SEP(*l)) | |
1253 | l++; | |
1254 | } | |
1255 | if (*l == '\0') | |
1256 | break; /* done */ | |
1257 | } | |
1258 | ||
bbb4ceb8 | 1259 | return retval; |
0f113f3e MC |
1260 | } |
1261 | ||
2ea80354 | 1262 | static int check_suiteb_cipher_list(const SSL_METHOD *meth, CERT *c, |
0f113f3e MC |
1263 | const char **prule_str) |
1264 | { | |
1265 | unsigned int suiteb_flags = 0, suiteb_comb2 = 0; | |
2ff286c2 | 1266 | if (HAS_PREFIX(*prule_str, "SUITEB128ONLY")) { |
0f113f3e | 1267 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS_ONLY; |
2ff286c2 | 1268 | } else if (HAS_PREFIX(*prule_str, "SUITEB128C2")) { |
0f113f3e MC |
1269 | suiteb_comb2 = 1; |
1270 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS; | |
2ff286c2 | 1271 | } else if (HAS_PREFIX(*prule_str, "SUITEB128")) { |
13e228d6 | 1272 | suiteb_flags = SSL_CERT_FLAG_SUITEB_128_LOS; |
2ff286c2 | 1273 | } else if (HAS_PREFIX(*prule_str, "SUITEB192")) { |
0f113f3e | 1274 | suiteb_flags = SSL_CERT_FLAG_SUITEB_192_LOS; |
13e228d6 | 1275 | } |
0f113f3e MC |
1276 | |
1277 | if (suiteb_flags) { | |
1278 | c->cert_flags &= ~SSL_CERT_FLAG_SUITEB_128_LOS; | |
1279 | c->cert_flags |= suiteb_flags; | |
bbb4ceb8 | 1280 | } else { |
0f113f3e | 1281 | suiteb_flags = c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS; |
bbb4ceb8 | 1282 | } |
0f113f3e MC |
1283 | |
1284 | if (!suiteb_flags) | |
1285 | return 1; | |
1286 | /* Check version: if TLS 1.2 ciphers allowed we can use Suite B */ | |
1287 | ||
1288 | if (!(meth->ssl3_enc->enc_flags & SSL_ENC_FLAG_TLS1_2_CIPHERS)) { | |
6849b73c | 1289 | ERR_raise(ERR_LIB_SSL, SSL_R_AT_LEAST_TLS_1_2_NEEDED_IN_SUITEB_MODE); |
0f113f3e MC |
1290 | return 0; |
1291 | } | |
462f4f4b | 1292 | |
0f113f3e MC |
1293 | switch (suiteb_flags) { |
1294 | case SSL_CERT_FLAG_SUITEB_128_LOS: | |
1295 | if (suiteb_comb2) | |
1296 | *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1297 | else | |
1298 | *prule_str = | |
1299 | "ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1300 | break; | |
1301 | case SSL_CERT_FLAG_SUITEB_128_LOS_ONLY: | |
1302 | *prule_str = "ECDHE-ECDSA-AES128-GCM-SHA256"; | |
1303 | break; | |
1304 | case SSL_CERT_FLAG_SUITEB_192_LOS: | |
1305 | *prule_str = "ECDHE-ECDSA-AES256-GCM-SHA384"; | |
1306 | break; | |
1307 | } | |
0f113f3e | 1308 | return 1; |
0f113f3e | 1309 | } |
2ea80354 | 1310 | |
a53b5be6 MC |
1311 | static int ciphersuite_cb(const char *elem, int len, void *arg) |
1312 | { | |
1313 | STACK_OF(SSL_CIPHER) *ciphersuites = (STACK_OF(SSL_CIPHER) *)arg; | |
1314 | const SSL_CIPHER *cipher; | |
1315 | /* Arbitrary sized temp buffer for the cipher name. Should be big enough */ | |
1316 | char name[80]; | |
1317 | ||
981b4b95 OH |
1318 | if (len > (int)(sizeof(name) - 1)) |
1319 | /* Anyway return 1 so we can parse rest of the list */ | |
1320 | return 1; | |
a53b5be6 MC |
1321 | |
1322 | memcpy(name, elem, len); | |
1323 | name[len] = '\0'; | |
1324 | ||
1325 | cipher = ssl3_get_cipher_by_std_name(name); | |
981b4b95 | 1326 | if (cipher == NULL) |
c1e8a0c6 OH |
1327 | /* Ciphersuite not found but return 1 to parse rest of the list */ |
1328 | return 1; | |
a53b5be6 MC |
1329 | |
1330 | if (!sk_SSL_CIPHER_push(ciphersuites, cipher)) { | |
6849b73c | 1331 | ERR_raise(ERR_LIB_SSL, ERR_R_INTERNAL_ERROR); |
a53b5be6 MC |
1332 | return 0; |
1333 | } | |
1334 | ||
1335 | return 1; | |
1336 | } | |
1337 | ||
f9a22815 | 1338 | static __owur int set_ciphersuites(STACK_OF(SSL_CIPHER) **currciphers, const char *str) |
a53b5be6 MC |
1339 | { |
1340 | STACK_OF(SSL_CIPHER) *newciphers = sk_SSL_CIPHER_new_null(); | |
1341 | ||
1342 | if (newciphers == NULL) | |
1343 | return 0; | |
1344 | ||
1345 | /* Parse the list. We explicitly allow an empty list */ | |
1346 | if (*str != '\0' | |
c1e8a0c6 | 1347 | && (CONF_parse_list(str, ':', 1, ciphersuite_cb, newciphers) <= 0 |
3d0b6494 | 1348 | || sk_SSL_CIPHER_num(newciphers) == 0)) { |
981b4b95 | 1349 | ERR_raise(ERR_LIB_SSL, SSL_R_NO_CIPHER_MATCH); |
a53b5be6 MC |
1350 | sk_SSL_CIPHER_free(newciphers); |
1351 | return 0; | |
1352 | } | |
1353 | sk_SSL_CIPHER_free(*currciphers); | |
1354 | *currciphers = newciphers; | |
1355 | ||
1356 | return 1; | |
1357 | } | |
1358 | ||
1359 | static int update_cipher_list_by_id(STACK_OF(SSL_CIPHER) **cipher_list_by_id, | |
1360 | STACK_OF(SSL_CIPHER) *cipherstack) | |
1361 | { | |
1362 | STACK_OF(SSL_CIPHER) *tmp_cipher_list = sk_SSL_CIPHER_dup(cipherstack); | |
1363 | ||
1364 | if (tmp_cipher_list == NULL) { | |
1365 | return 0; | |
1366 | } | |
1367 | ||
1368 | sk_SSL_CIPHER_free(*cipher_list_by_id); | |
1369 | *cipher_list_by_id = tmp_cipher_list; | |
1370 | ||
1371 | (void)sk_SSL_CIPHER_set_cmp_func(*cipher_list_by_id, ssl_cipher_ptr_id_cmp); | |
1372 | sk_SSL_CIPHER_sort(*cipher_list_by_id); | |
1373 | ||
1374 | return 1; | |
1375 | } | |
1376 | ||
6cb814de | 1377 | static int update_cipher_list(SSL_CTX *ctx, |
1378 | STACK_OF(SSL_CIPHER) **cipher_list, | |
a53b5be6 MC |
1379 | STACK_OF(SSL_CIPHER) **cipher_list_by_id, |
1380 | STACK_OF(SSL_CIPHER) *tls13_ciphersuites) | |
1381 | { | |
1382 | int i; | |
1383 | STACK_OF(SSL_CIPHER) *tmp_cipher_list = sk_SSL_CIPHER_dup(*cipher_list); | |
1384 | ||
1385 | if (tmp_cipher_list == NULL) | |
1386 | return 0; | |
1387 | ||
1388 | /* | |
1389 | * Delete any existing TLSv1.3 ciphersuites. These are always first in the | |
1390 | * list. | |
1391 | */ | |
1392 | while (sk_SSL_CIPHER_num(tmp_cipher_list) > 0 | |
1393 | && sk_SSL_CIPHER_value(tmp_cipher_list, 0)->min_tls | |
1394 | == TLS1_3_VERSION) | |
225c9660 | 1395 | (void)sk_SSL_CIPHER_delete(tmp_cipher_list, 0); |
a53b5be6 MC |
1396 | |
1397 | /* Insert the new TLSv1.3 ciphersuites */ | |
6cb814de | 1398 | for (i = sk_SSL_CIPHER_num(tls13_ciphersuites) - 1; i >= 0; i--) { |
1399 | const SSL_CIPHER *sslc = sk_SSL_CIPHER_value(tls13_ciphersuites, i); | |
1400 | ||
1401 | /* Don't include any TLSv1.3 ciphersuites that are disabled */ | |
1402 | if ((sslc->algorithm_enc & ctx->disabled_enc_mask) == 0 | |
1403 | && (ssl_cipher_table_mac[sslc->algorithm2 | |
1404 | & SSL_HANDSHAKE_MAC_MASK].mask | |
1405 | & ctx->disabled_mac_mask) == 0) { | |
1406 | sk_SSL_CIPHER_unshift(tmp_cipher_list, sslc); | |
1407 | } | |
1408 | } | |
a53b5be6 | 1409 | |
e22105d1 P |
1410 | if (!update_cipher_list_by_id(cipher_list_by_id, tmp_cipher_list)) { |
1411 | sk_SSL_CIPHER_free(tmp_cipher_list); | |
a53b5be6 | 1412 | return 0; |
e22105d1 | 1413 | } |
a53b5be6 MC |
1414 | |
1415 | sk_SSL_CIPHER_free(*cipher_list); | |
1416 | *cipher_list = tmp_cipher_list; | |
1417 | ||
1418 | return 1; | |
1419 | } | |
1420 | ||
1421 | int SSL_CTX_set_ciphersuites(SSL_CTX *ctx, const char *str) | |
1422 | { | |
1423 | int ret = set_ciphersuites(&(ctx->tls13_ciphersuites), str); | |
1424 | ||
52b1fda3 | 1425 | if (ret && ctx->cipher_list != NULL) |
6cb814de | 1426 | return update_cipher_list(ctx, &ctx->cipher_list, &ctx->cipher_list_by_id, |
a53b5be6 | 1427 | ctx->tls13_ciphersuites); |
a53b5be6 MC |
1428 | |
1429 | return ret; | |
1430 | } | |
1431 | ||
1432 | int SSL_set_ciphersuites(SSL *s, const char *str) | |
1433 | { | |
52b1fda3 | 1434 | STACK_OF(SSL_CIPHER) *cipher_list; |
38b051a1 TM |
1435 | SSL_CONNECTION *sc = SSL_CONNECTION_FROM_SSL(s); |
1436 | int ret; | |
a53b5be6 | 1437 | |
38b051a1 TM |
1438 | if (sc == NULL) |
1439 | return 0; | |
1440 | ||
1441 | ret = set_ciphersuites(&(sc->tls13_ciphersuites), str); | |
1442 | ||
1443 | if (sc->cipher_list == NULL) { | |
52b1fda3 | 1444 | if ((cipher_list = SSL_get_ciphers(s)) != NULL) |
38b051a1 | 1445 | sc->cipher_list = sk_SSL_CIPHER_dup(cipher_list); |
52b1fda3 | 1446 | } |
38b051a1 TM |
1447 | if (ret && sc->cipher_list != NULL) |
1448 | return update_cipher_list(s->ctx, &sc->cipher_list, | |
1449 | &sc->cipher_list_by_id, | |
1450 | sc->tls13_ciphersuites); | |
a53b5be6 MC |
1451 | |
1452 | return ret; | |
1453 | } | |
1454 | ||
a68eee67 | 1455 | STACK_OF(SSL_CIPHER) *ssl_create_cipher_list(SSL_CTX *ctx, |
f865b081 MC |
1456 | STACK_OF(SSL_CIPHER) *tls13_ciphersuites, |
1457 | STACK_OF(SSL_CIPHER) **cipher_list, | |
1458 | STACK_OF(SSL_CIPHER) **cipher_list_by_id, | |
1459 | const char *rule_str, | |
1460 | CERT *c) | |
0f113f3e | 1461 | { |
f865b081 | 1462 | int ok, num_of_ciphers, num_of_alias_max, num_of_group_aliases, i; |
6063453c | 1463 | uint32_t disabled_mkey, disabled_auth, disabled_enc, disabled_mac; |
a53b5be6 | 1464 | STACK_OF(SSL_CIPHER) *cipherstack; |
0f113f3e MC |
1465 | const char *rule_p; |
1466 | CIPHER_ORDER *co_list = NULL, *head = NULL, *tail = NULL, *curr; | |
1467 | const SSL_CIPHER **ca_list = NULL; | |
a68eee67 | 1468 | const SSL_METHOD *ssl_method = ctx->method; |
0f113f3e MC |
1469 | |
1470 | /* | |
1471 | * Return with error if nothing to do. | |
1472 | */ | |
1473 | if (rule_str == NULL || cipher_list == NULL || cipher_list_by_id == NULL) | |
1474 | return NULL; | |
462f4f4b | 1475 | |
0f113f3e MC |
1476 | if (!check_suiteb_cipher_list(ssl_method, c, &rule_str)) |
1477 | return NULL; | |
2ea80354 | 1478 | |
0f113f3e MC |
1479 | /* |
1480 | * To reduce the work to do we only want to process the compiled | |
1481 | * in algorithms, so we first get the mask of disabled ciphers. | |
1482 | */ | |
633d49c7 | 1483 | |
a68eee67 MC |
1484 | disabled_mkey = ctx->disabled_mkey_mask; |
1485 | disabled_auth = ctx->disabled_auth_mask; | |
1486 | disabled_enc = ctx->disabled_enc_mask; | |
1487 | disabled_mac = ctx->disabled_mac_mask; | |
0f113f3e MC |
1488 | |
1489 | /* | |
1490 | * Now we have to collect the available ciphers from the compiled | |
1491 | * in ciphers. We cannot get more than the number compiled in, so | |
1492 | * it is used for allocation. | |
1493 | */ | |
1494 | num_of_ciphers = ssl_method->num_ciphers(); | |
55a9a16f | 1495 | |
b4faea50 | 1496 | co_list = OPENSSL_malloc(sizeof(*co_list) * num_of_ciphers); |
0f113f3e | 1497 | if (co_list == NULL) { |
6849b73c | 1498 | ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE); |
bbb4ceb8 | 1499 | return NULL; /* Failure */ |
0f113f3e MC |
1500 | } |
1501 | ||
1502 | ssl_cipher_collect_ciphers(ssl_method, num_of_ciphers, | |
1503 | disabled_mkey, disabled_auth, disabled_enc, | |
a230b26e | 1504 | disabled_mac, co_list, &head, &tail); |
0f113f3e | 1505 | |
a556f342 | 1506 | /* Now arrange all ciphers by preference. */ |
0f113f3e MC |
1507 | |
1508 | /* | |
1509 | * Everything else being equal, prefer ephemeral ECDH over other key | |
a556f342 EK |
1510 | * exchange mechanisms. |
1511 | * For consistency, prefer ECDSA over RSA (though this only matters if the | |
1512 | * server has both certificates, and is using the DEFAULT, or a client | |
1513 | * preference). | |
0f113f3e | 1514 | */ |
a556f342 EK |
1515 | ssl_cipher_apply_rule(0, SSL_kECDHE, SSL_aECDSA, 0, 0, 0, 0, CIPHER_ADD, |
1516 | -1, &head, &tail); | |
0f113f3e MC |
1517 | ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, |
1518 | &tail); | |
1519 | ssl_cipher_apply_rule(0, SSL_kECDHE, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, | |
1520 | &tail); | |
1521 | ||
a556f342 EK |
1522 | /* Within each strength group, we prefer GCM over CHACHA... */ |
1523 | ssl_cipher_apply_rule(0, 0, 0, SSL_AESGCM, 0, 0, 0, CIPHER_ADD, -1, | |
1524 | &head, &tail); | |
1525 | ssl_cipher_apply_rule(0, 0, 0, SSL_CHACHA20, 0, 0, 0, CIPHER_ADD, -1, | |
1526 | &head, &tail); | |
1527 | ||
a230b26e EK |
1528 | /* |
1529 | * ...and generally, our preferred cipher is AES. | |
1530 | * Note that AEADs will be bumped to take preference after sorting by | |
1531 | * strength. | |
1532 | */ | |
a556f342 EK |
1533 | ssl_cipher_apply_rule(0, 0, 0, SSL_AES ^ SSL_AESGCM, 0, 0, 0, CIPHER_ADD, |
1534 | -1, &head, &tail); | |
0f113f3e MC |
1535 | |
1536 | /* Temporarily enable everything else for sorting */ | |
1537 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_ADD, -1, &head, &tail); | |
1538 | ||
1539 | /* Low priority for MD5 */ | |
1540 | ssl_cipher_apply_rule(0, 0, 0, 0, SSL_MD5, 0, 0, CIPHER_ORD, -1, &head, | |
1541 | &tail); | |
1542 | ||
1543 | /* | |
1544 | * Move anonymous ciphers to the end. Usually, these will remain | |
1545 | * disabled. (For applications that allow them, they aren't too bad, but | |
1546 | * we prefer authenticated ciphers.) | |
1547 | */ | |
1548 | ssl_cipher_apply_rule(0, 0, SSL_aNULL, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1549 | &tail); | |
1550 | ||
0f113f3e MC |
1551 | ssl_cipher_apply_rule(0, SSL_kRSA, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, |
1552 | &tail); | |
1553 | ssl_cipher_apply_rule(0, SSL_kPSK, 0, 0, 0, 0, 0, CIPHER_ORD, -1, &head, | |
1554 | &tail); | |
0f113f3e | 1555 | |
3519bae5 | 1556 | /* RC4 is sort-of broken -- move to the end */ |
0f113f3e MC |
1557 | ssl_cipher_apply_rule(0, 0, 0, SSL_RC4, 0, 0, 0, CIPHER_ORD, -1, &head, |
1558 | &tail); | |
1559 | ||
1560 | /* | |
1561 | * Now sort by symmetric encryption strength. The above ordering remains | |
1562 | * in force within each class | |
1563 | */ | |
1564 | if (!ssl_cipher_strength_sort(&head, &tail)) { | |
1565 | OPENSSL_free(co_list); | |
1566 | return NULL; | |
1567 | } | |
1568 | ||
a556f342 EK |
1569 | /* |
1570 | * Partially overrule strength sort to prefer TLS 1.2 ciphers/PRFs. | |
a556f342 | 1571 | */ |
3eb2aff4 | 1572 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, TLS1_2_VERSION, 0, CIPHER_BUMP, -1, |
a556f342 EK |
1573 | &head, &tail); |
1574 | ||
1575 | /* | |
1576 | * Irrespective of strength, enforce the following order: | |
1577 | * (EC)DHE + AEAD > (EC)DHE > rest of AEAD > rest. | |
1578 | * Within each group, ciphers remain sorted by strength and previous | |
1579 | * preference, i.e., | |
1580 | * 1) ECDHE > DHE | |
1581 | * 2) GCM > CHACHA | |
1582 | * 3) AES > rest | |
1583 | * 4) TLS 1.2 > legacy | |
1584 | * | |
1585 | * Because we now bump ciphers to the top of the list, we proceed in | |
1586 | * reverse order of preference. | |
1587 | */ | |
1588 | ssl_cipher_apply_rule(0, 0, 0, 0, SSL_AEAD, 0, 0, CIPHER_BUMP, -1, | |
1589 | &head, &tail); | |
1590 | ssl_cipher_apply_rule(0, SSL_kDHE | SSL_kECDHE, 0, 0, 0, 0, 0, | |
a230b26e | 1591 | CIPHER_BUMP, -1, &head, &tail); |
a556f342 | 1592 | ssl_cipher_apply_rule(0, SSL_kDHE | SSL_kECDHE, 0, 0, SSL_AEAD, 0, 0, |
a230b26e | 1593 | CIPHER_BUMP, -1, &head, &tail); |
a556f342 | 1594 | |
0f113f3e MC |
1595 | /* Now disable everything (maintaining the ordering!) */ |
1596 | ssl_cipher_apply_rule(0, 0, 0, 0, 0, 0, 0, CIPHER_DEL, -1, &head, &tail); | |
1597 | ||
1598 | /* | |
1599 | * We also need cipher aliases for selecting based on the rule_str. | |
1600 | * There might be two types of entries in the rule_str: 1) names | |
1601 | * of ciphers themselves 2) aliases for groups of ciphers. | |
1602 | * For 1) we need the available ciphers and for 2) the cipher | |
1603 | * groups of cipher_aliases added together in one list (otherwise | |
1604 | * we would be happy with just the cipher_aliases table). | |
1605 | */ | |
b6eb9827 | 1606 | num_of_group_aliases = OSSL_NELEM(cipher_aliases); |
0f113f3e | 1607 | num_of_alias_max = num_of_ciphers + num_of_group_aliases + 1; |
b4faea50 | 1608 | ca_list = OPENSSL_malloc(sizeof(*ca_list) * num_of_alias_max); |
0f113f3e MC |
1609 | if (ca_list == NULL) { |
1610 | OPENSSL_free(co_list); | |
6849b73c | 1611 | ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE); |
bbb4ceb8 | 1612 | return NULL; /* Failure */ |
0f113f3e MC |
1613 | } |
1614 | ssl_cipher_collect_aliases(ca_list, num_of_group_aliases, | |
1615 | disabled_mkey, disabled_auth, disabled_enc, | |
6063453c | 1616 | disabled_mac, head); |
0f113f3e MC |
1617 | |
1618 | /* | |
1619 | * If the rule_string begins with DEFAULT, apply the default rule | |
1620 | * before using the (possibly available) additional rules. | |
1621 | */ | |
1622 | ok = 1; | |
1623 | rule_p = rule_str; | |
2ff286c2 | 1624 | if (HAS_PREFIX(rule_str, "DEFAULT")) { |
5d120511 | 1625 | ok = ssl_cipher_process_rulestr(OSSL_default_cipher_list(), |
0f113f3e MC |
1626 | &head, &tail, ca_list, c); |
1627 | rule_p += 7; | |
1628 | if (*rule_p == ':') | |
1629 | rule_p++; | |
1630 | } | |
1631 | ||
4bac25e1 | 1632 | if (ok && (rule_p[0] != '\0')) |
0f113f3e MC |
1633 | ok = ssl_cipher_process_rulestr(rule_p, &head, &tail, ca_list, c); |
1634 | ||
a230b26e | 1635 | OPENSSL_free(ca_list); /* Not needed anymore */ |
0f113f3e MC |
1636 | |
1637 | if (!ok) { /* Rule processing failure */ | |
1638 | OPENSSL_free(co_list); | |
bbb4ceb8 | 1639 | return NULL; |
0f113f3e MC |
1640 | } |
1641 | ||
1642 | /* | |
1643 | * Allocate new "cipherstack" for the result, return with error | |
1644 | * if we cannot get one. | |
1645 | */ | |
1646 | if ((cipherstack = sk_SSL_CIPHER_new_null()) == NULL) { | |
1647 | OPENSSL_free(co_list); | |
bbb4ceb8 | 1648 | return NULL; |
0f113f3e MC |
1649 | } |
1650 | ||
f865b081 MC |
1651 | /* Add TLSv1.3 ciphers first - we always prefer those if possible */ |
1652 | for (i = 0; i < sk_SSL_CIPHER_num(tls13_ciphersuites); i++) { | |
4264ecd4 MC |
1653 | const SSL_CIPHER *sslc = sk_SSL_CIPHER_value(tls13_ciphersuites, i); |
1654 | ||
1655 | /* Don't include any TLSv1.3 ciphers that are disabled */ | |
1656 | if ((sslc->algorithm_enc & disabled_enc) != 0 | |
1657 | || (ssl_cipher_table_mac[sslc->algorithm2 | |
1658 | & SSL_HANDSHAKE_MAC_MASK].mask | |
ce0b307e BK |
1659 | & ctx->disabled_mac_mask) != 0) { |
1660 | sk_SSL_CIPHER_delete(tls13_ciphersuites, i); | |
1661 | i--; | |
4264ecd4 | 1662 | continue; |
ce0b307e | 1663 | } |
4264ecd4 MC |
1664 | |
1665 | if (!sk_SSL_CIPHER_push(cipherstack, sslc)) { | |
3a069c1b | 1666 | OPENSSL_free(co_list); |
f865b081 MC |
1667 | sk_SSL_CIPHER_free(cipherstack); |
1668 | return NULL; | |
1669 | } | |
1670 | } | |
1671 | ||
77359d22 RL |
1672 | OSSL_TRACE_BEGIN(TLS_CIPHER) { |
1673 | BIO_printf(trc_out, "cipher selection:\n"); | |
1674 | } | |
0f113f3e MC |
1675 | /* |
1676 | * The cipher selection for the list is done. The ciphers are added | |
1677 | * to the resulting precedence to the STACK_OF(SSL_CIPHER). | |
1678 | */ | |
1679 | for (curr = head; curr != NULL; curr = curr->next) { | |
b53338cb | 1680 | if (curr->active) { |
0f113f3e MC |
1681 | if (!sk_SSL_CIPHER_push(cipherstack, curr->cipher)) { |
1682 | OPENSSL_free(co_list); | |
1683 | sk_SSL_CIPHER_free(cipherstack); | |
77359d22 | 1684 | OSSL_TRACE_CANCEL(TLS_CIPHER); |
0f113f3e MC |
1685 | return NULL; |
1686 | } | |
77359d22 RL |
1687 | if (trc_out != NULL) |
1688 | BIO_printf(trc_out, "<%s>\n", curr->cipher->name); | |
0f113f3e MC |
1689 | } |
1690 | } | |
1691 | OPENSSL_free(co_list); /* Not needed any longer */ | |
77359d22 | 1692 | OSSL_TRACE_END(TLS_CIPHER); |
0f113f3e | 1693 | |
a53b5be6 | 1694 | if (!update_cipher_list_by_id(cipher_list_by_id, cipherstack)) { |
0f113f3e MC |
1695 | sk_SSL_CIPHER_free(cipherstack); |
1696 | return NULL; | |
1697 | } | |
25aaa98a | 1698 | sk_SSL_CIPHER_free(*cipher_list); |
0f113f3e | 1699 | *cipher_list = cipherstack; |
0f113f3e | 1700 | |
bbb4ceb8 | 1701 | return cipherstack; |
0f113f3e | 1702 | } |
d02b48c6 | 1703 | |
7689ed34 | 1704 | char *SSL_CIPHER_description(const SSL_CIPHER *cipher, char *buf, int len) |
0f113f3e | 1705 | { |
361a1191 | 1706 | const char *ver; |
0f113f3e | 1707 | const char *kx, *au, *enc, *mac; |
baf245ec | 1708 | uint32_t alg_mkey, alg_auth, alg_enc, alg_mac; |
6b2e51dd | 1709 | static const char *format = "%-30s %-7s Kx=%-8s Au=%-5s Enc=%-22s Mac=%-4s\n"; |
0f113f3e | 1710 | |
baf245ec RS |
1711 | if (buf == NULL) { |
1712 | len = 128; | |
cdb10bae | 1713 | if ((buf = OPENSSL_malloc(len)) == NULL) { |
6849b73c | 1714 | ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE); |
baf245ec | 1715 | return NULL; |
cdb10bae | 1716 | } |
bbb4ceb8 | 1717 | } else if (len < 128) { |
baf245ec | 1718 | return NULL; |
bbb4ceb8 | 1719 | } |
baf245ec | 1720 | |
0f113f3e MC |
1721 | alg_mkey = cipher->algorithm_mkey; |
1722 | alg_auth = cipher->algorithm_auth; | |
1723 | alg_enc = cipher->algorithm_enc; | |
1724 | alg_mac = cipher->algorithm_mac; | |
0f113f3e | 1725 | |
3eb2aff4 | 1726 | ver = ssl_protocol_to_string(cipher->min_tls); |
0f113f3e MC |
1727 | |
1728 | switch (alg_mkey) { | |
1729 | case SSL_kRSA: | |
361a1191 | 1730 | kx = "RSA"; |
0f113f3e | 1731 | break; |
0f113f3e | 1732 | case SSL_kDHE: |
361a1191 | 1733 | kx = "DH"; |
0f113f3e | 1734 | break; |
0f113f3e MC |
1735 | case SSL_kECDHE: |
1736 | kx = "ECDH"; | |
1737 | break; | |
1738 | case SSL_kPSK: | |
1739 | kx = "PSK"; | |
1740 | break; | |
8baac6a2 DSH |
1741 | case SSL_kRSAPSK: |
1742 | kx = "RSAPSK"; | |
1743 | break; | |
1744 | case SSL_kECDHEPSK: | |
1745 | kx = "ECDHEPSK"; | |
1746 | break; | |
1747 | case SSL_kDHEPSK: | |
1748 | kx = "DHEPSK"; | |
1749 | break; | |
0f113f3e MC |
1750 | case SSL_kSRP: |
1751 | kx = "SRP"; | |
1752 | break; | |
1753 | case SSL_kGOST: | |
1754 | kx = "GOST"; | |
1755 | break; | |
5a5530a2 DB |
1756 | case SSL_kGOST18: |
1757 | kx = "GOST18"; | |
1758 | break; | |
e5c4bf93 DSH |
1759 | case SSL_kANY: |
1760 | kx = "any"; | |
1761 | break; | |
0f113f3e MC |
1762 | default: |
1763 | kx = "unknown"; | |
1764 | } | |
1765 | ||
1766 | switch (alg_auth) { | |
1767 | case SSL_aRSA: | |
1768 | au = "RSA"; | |
1769 | break; | |
1770 | case SSL_aDSS: | |
1771 | au = "DSS"; | |
1772 | break; | |
0f113f3e MC |
1773 | case SSL_aNULL: |
1774 | au = "None"; | |
1775 | break; | |
1776 | case SSL_aECDSA: | |
1777 | au = "ECDSA"; | |
1778 | break; | |
1779 | case SSL_aPSK: | |
1780 | au = "PSK"; | |
1781 | break; | |
1782 | case SSL_aSRP: | |
1783 | au = "SRP"; | |
1784 | break; | |
0f113f3e MC |
1785 | case SSL_aGOST01: |
1786 | au = "GOST01"; | |
1787 | break; | |
48722ff5 | 1788 | /* New GOST ciphersuites have both SSL_aGOST12 and SSL_aGOST01 bits */ |
e44380a9 DB |
1789 | case (SSL_aGOST12 | SSL_aGOST01): |
1790 | au = "GOST12"; | |
1791 | break; | |
e5c4bf93 DSH |
1792 | case SSL_aANY: |
1793 | au = "any"; | |
1794 | break; | |
0f113f3e MC |
1795 | default: |
1796 | au = "unknown"; | |
1797 | break; | |
1798 | } | |
1799 | ||
1800 | switch (alg_enc) { | |
1801 | case SSL_DES: | |
361a1191 | 1802 | enc = "DES(56)"; |
0f113f3e MC |
1803 | break; |
1804 | case SSL_3DES: | |
1805 | enc = "3DES(168)"; | |
1806 | break; | |
1807 | case SSL_RC4: | |
361a1191 | 1808 | enc = "RC4(128)"; |
0f113f3e MC |
1809 | break; |
1810 | case SSL_RC2: | |
361a1191 | 1811 | enc = "RC2(128)"; |
0f113f3e MC |
1812 | break; |
1813 | case SSL_IDEA: | |
1814 | enc = "IDEA(128)"; | |
1815 | break; | |
1816 | case SSL_eNULL: | |
1817 | enc = "None"; | |
1818 | break; | |
1819 | case SSL_AES128: | |
1820 | enc = "AES(128)"; | |
1821 | break; | |
1822 | case SSL_AES256: | |
1823 | enc = "AES(256)"; | |
1824 | break; | |
1825 | case SSL_AES128GCM: | |
1826 | enc = "AESGCM(128)"; | |
1827 | break; | |
1828 | case SSL_AES256GCM: | |
1829 | enc = "AESGCM(256)"; | |
1830 | break; | |
e75c5a79 DSH |
1831 | case SSL_AES128CCM: |
1832 | enc = "AESCCM(128)"; | |
1833 | break; | |
1834 | case SSL_AES256CCM: | |
1835 | enc = "AESCCM(256)"; | |
1836 | break; | |
3d3701ea DSH |
1837 | case SSL_AES128CCM8: |
1838 | enc = "AESCCM8(128)"; | |
1839 | break; | |
1840 | case SSL_AES256CCM8: | |
1841 | enc = "AESCCM8(256)"; | |
1842 | break; | |
0f113f3e MC |
1843 | case SSL_CAMELLIA128: |
1844 | enc = "Camellia(128)"; | |
1845 | break; | |
1846 | case SSL_CAMELLIA256: | |
1847 | enc = "Camellia(256)"; | |
1848 | break; | |
bc326738 JS |
1849 | case SSL_ARIA128GCM: |
1850 | enc = "ARIAGCM(128)"; | |
1851 | break; | |
1852 | case SSL_ARIA256GCM: | |
1853 | enc = "ARIAGCM(256)"; | |
1854 | break; | |
0f113f3e MC |
1855 | case SSL_SEED: |
1856 | enc = "SEED(128)"; | |
1857 | break; | |
1858 | case SSL_eGOST2814789CNT: | |
e44380a9 | 1859 | case SSL_eGOST2814789CNT12: |
0f113f3e MC |
1860 | enc = "GOST89(256)"; |
1861 | break; | |
5a5530a2 DB |
1862 | case SSL_MAGMA: |
1863 | enc = "MAGMA"; | |
1864 | break; | |
1865 | case SSL_KUZNYECHIK: | |
1866 | enc = "KUZNYECHIK"; | |
1867 | break; | |
0d3587c7 MC |
1868 | case SSL_CHACHA20POLY1305: |
1869 | enc = "CHACHA20/POLY1305(256)"; | |
1870 | break; | |
0f113f3e MC |
1871 | default: |
1872 | enc = "unknown"; | |
1873 | break; | |
1874 | } | |
1875 | ||
1876 | switch (alg_mac) { | |
1877 | case SSL_MD5: | |
1878 | mac = "MD5"; | |
1879 | break; | |
1880 | case SSL_SHA1: | |
1881 | mac = "SHA1"; | |
1882 | break; | |
1883 | case SSL_SHA256: | |
1884 | mac = "SHA256"; | |
1885 | break; | |
1886 | case SSL_SHA384: | |
1887 | mac = "SHA384"; | |
1888 | break; | |
1889 | case SSL_AEAD: | |
1890 | mac = "AEAD"; | |
1891 | break; | |
1892 | case SSL_GOST89MAC: | |
e44380a9 | 1893 | case SSL_GOST89MAC12: |
0f113f3e MC |
1894 | mac = "GOST89"; |
1895 | break; | |
1896 | case SSL_GOST94: | |
1897 | mac = "GOST94"; | |
1898 | break; | |
e44380a9 DB |
1899 | case SSL_GOST12_256: |
1900 | case SSL_GOST12_512: | |
1901 | mac = "GOST2012"; | |
1902 | break; | |
0f113f3e MC |
1903 | default: |
1904 | mac = "unknown"; | |
1905 | break; | |
1906 | } | |
1907 | ||
361a1191 | 1908 | BIO_snprintf(buf, len, format, cipher->name, ver, kx, au, enc, mac); |
55a9a16f | 1909 | |
bbb4ceb8 | 1910 | return buf; |
0f113f3e | 1911 | } |
d02b48c6 | 1912 | |
b11836a6 | 1913 | const char *SSL_CIPHER_get_version(const SSL_CIPHER *c) |
0f113f3e | 1914 | { |
0f113f3e | 1915 | if (c == NULL) |
baf245ec | 1916 | return "(NONE)"; |
ee3a6c64 VD |
1917 | |
1918 | /* | |
1919 | * Backwards-compatibility crutch. In almost all contexts we report TLS | |
1920 | * 1.0 as "TLSv1", but for ciphers we report "TLSv1.0". | |
1921 | */ | |
1922 | if (c->min_tls == TLS1_VERSION) | |
1923 | return "TLSv1.0"; | |
3eb2aff4 | 1924 | return ssl_protocol_to_string(c->min_tls); |
0f113f3e | 1925 | } |
d02b48c6 RE |
1926 | |
1927 | /* return the actual cipher being used */ | |
0821bcd4 | 1928 | const char *SSL_CIPHER_get_name(const SSL_CIPHER *c) |
0f113f3e MC |
1929 | { |
1930 | if (c != NULL) | |
bbb4ceb8 PY |
1931 | return c->name; |
1932 | return "(NONE)"; | |
1933 | } | |
1934 | ||
1935 | /* return the actual cipher being used in RFC standard name */ | |
1936 | const char *SSL_CIPHER_standard_name(const SSL_CIPHER *c) | |
1937 | { | |
1938 | if (c != NULL) | |
1939 | return c->stdname; | |
1940 | return "(NONE)"; | |
1941 | } | |
1942 | ||
1943 | /* return the OpenSSL name based on given RFC standard name */ | |
1944 | const char *OPENSSL_cipher_name(const char *stdname) | |
1945 | { | |
1946 | const SSL_CIPHER *c; | |
1947 | ||
1948 | if (stdname == NULL) | |
1949 | return "(NONE)"; | |
1950 | c = ssl3_get_cipher_by_std_name(stdname); | |
1951 | return SSL_CIPHER_get_name(c); | |
0f113f3e | 1952 | } |
d02b48c6 | 1953 | |
657e60fa | 1954 | /* number of bits for symmetric cipher */ |
1c86d8fd | 1955 | int SSL_CIPHER_get_bits(const SSL_CIPHER *c, int *alg_bits) |
0f113f3e | 1956 | { |
1c86d8fd | 1957 | int ret = 0; |
0f113f3e MC |
1958 | |
1959 | if (c != NULL) { | |
1960 | if (alg_bits != NULL) | |
a230b26e EK |
1961 | *alg_bits = (int)c->alg_bits; |
1962 | ret = (int)c->strength_bits; | |
0f113f3e | 1963 | } |
90d9e49a | 1964 | return ret; |
0f113f3e | 1965 | } |
d02b48c6 | 1966 | |
90d9e49a | 1967 | uint32_t SSL_CIPHER_get_id(const SSL_CIPHER *c) |
0f113f3e MC |
1968 | { |
1969 | return c->id; | |
1970 | } | |
08557cf2 | 1971 | |
50966bfa PY |
1972 | uint16_t SSL_CIPHER_get_protocol_id(const SSL_CIPHER *c) |
1973 | { | |
1974 | return c->id & 0xFFFF; | |
1975 | } | |
1976 | ||
6b691a5c | 1977 | SSL_COMP *ssl3_comp_find(STACK_OF(SSL_COMP) *sk, int n) |
0f113f3e MC |
1978 | { |
1979 | SSL_COMP *ctmp; | |
1980 | int i, nn; | |
1981 | ||
1982 | if ((n == 0) || (sk == NULL)) | |
26a7d938 | 1983 | return NULL; |
0f113f3e MC |
1984 | nn = sk_SSL_COMP_num(sk); |
1985 | for (i = 0; i < nn; i++) { | |
1986 | ctmp = sk_SSL_COMP_value(sk, i); | |
1987 | if (ctmp->id == n) | |
bbb4ceb8 | 1988 | return ctmp; |
0f113f3e | 1989 | } |
bbb4ceb8 | 1990 | return NULL; |
0f113f3e | 1991 | } |
413c4f45 | 1992 | |
09b6c2ef | 1993 | #ifdef OPENSSL_NO_COMP |
9a555706 | 1994 | STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) |
0f113f3e MC |
1995 | { |
1996 | return NULL; | |
1997 | } | |
a230b26e | 1998 | |
9a555706 RS |
1999 | STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) |
2000 | *meths) | |
0f113f3e | 2001 | { |
9a555706 | 2002 | return meths; |
0f113f3e | 2003 | } |
a230b26e | 2004 | |
9a555706 RS |
2005 | int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) |
2006 | { | |
2007 | return 1; | |
2008 | } | |
2009 | ||
09b6c2ef | 2010 | #else |
6b691a5c | 2011 | STACK_OF(SSL_COMP) *SSL_COMP_get_compression_methods(void) |
0f113f3e MC |
2012 | { |
2013 | load_builtin_compressions(); | |
bbb4ceb8 | 2014 | return ssl_comp_methods; |
0f113f3e MC |
2015 | } |
2016 | ||
2017 | STACK_OF(SSL_COMP) *SSL_COMP_set0_compression_methods(STACK_OF(SSL_COMP) | |
2018 | *meths) | |
2019 | { | |
2020 | STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods; | |
2021 | ssl_comp_methods = meths; | |
2022 | return old_meths; | |
2023 | } | |
cbb67448 | 2024 | |
db7b5e0d | 2025 | static void cmeth_free(SSL_COMP *cm) |
0f113f3e MC |
2026 | { |
2027 | OPENSSL_free(cm); | |
2028 | } | |
db7b5e0d | 2029 | |
b3599dbb | 2030 | void ssl_comp_free_compression_methods_int(void) |
0f113f3e MC |
2031 | { |
2032 | STACK_OF(SSL_COMP) *old_meths = ssl_comp_methods; | |
2033 | ssl_comp_methods = NULL; | |
2034 | sk_SSL_COMP_pop_free(old_meths, cmeth_free); | |
2035 | } | |
db7b5e0d | 2036 | |
6b691a5c | 2037 | int SSL_COMP_add_compression_method(int id, COMP_METHOD *cm) |
0f113f3e MC |
2038 | { |
2039 | SSL_COMP *comp; | |
413c4f45 | 2040 | |
9a555706 | 2041 | if (cm == NULL || COMP_get_type(cm) == NID_undef) |
0f113f3e | 2042 | return 1; |
9f495243 | 2043 | |
50e735f9 MC |
2044 | /*- |
2045 | * According to draft-ietf-tls-compression-04.txt, the | |
2046 | * compression number ranges should be the following: | |
2047 | * | |
2048 | * 0 to 63: methods defined by the IETF | |
2049 | * 64 to 192: external party methods assigned by IANA | |
2050 | * 193 to 255: reserved for private use | |
2051 | */ | |
0f113f3e | 2052 | if (id < 193 || id > 255) { |
6849b73c | 2053 | ERR_raise(ERR_LIB_SSL, SSL_R_COMPRESSION_ID_NOT_WITHIN_PRIVATE_RANGE); |
e0670973 | 2054 | return 1; |
0f113f3e MC |
2055 | } |
2056 | ||
b4faea50 | 2057 | comp = OPENSSL_malloc(sizeof(*comp)); |
0f113f3e | 2058 | if (comp == NULL) { |
6849b73c | 2059 | ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE); |
bbb4ceb8 | 2060 | return 1; |
0f113f3e MC |
2061 | } |
2062 | ||
2063 | comp->id = id; | |
2064 | comp->method = cm; | |
2065 | load_builtin_compressions(); | |
2066 | if (ssl_comp_methods && sk_SSL_COMP_find(ssl_comp_methods, comp) >= 0) { | |
2067 | OPENSSL_free(comp); | |
6849b73c | 2068 | ERR_raise(ERR_LIB_SSL, SSL_R_DUPLICATE_COMPRESSION_ID); |
bbb4ceb8 | 2069 | return 1; |
bbd86bf5 | 2070 | } |
a230b26e | 2071 | if (ssl_comp_methods == NULL || !sk_SSL_COMP_push(ssl_comp_methods, comp)) { |
0f113f3e | 2072 | OPENSSL_free(comp); |
6849b73c | 2073 | ERR_raise(ERR_LIB_SSL, ERR_R_MALLOC_FAILURE); |
bbb4ceb8 | 2074 | return 1; |
0f113f3e | 2075 | } |
bbb4ceb8 | 2076 | return 0; |
0f113f3e | 2077 | } |
9a555706 | 2078 | #endif |
377dcdba RL |
2079 | |
2080 | const char *SSL_COMP_get_name(const COMP_METHOD *comp) | |
0f113f3e | 2081 | { |
9a555706 RS |
2082 | #ifndef OPENSSL_NO_COMP |
2083 | return comp ? COMP_get_name(comp) : NULL; | |
2084 | #else | |
0f113f3e | 2085 | return NULL; |
09b6c2ef | 2086 | #endif |
9a555706 RS |
2087 | } |
2088 | ||
e304d3e2 MC |
2089 | const char *SSL_COMP_get0_name(const SSL_COMP *comp) |
2090 | { | |
2091 | #ifndef OPENSSL_NO_COMP | |
2092 | return comp->name; | |
2093 | #else | |
2094 | return NULL; | |
2095 | #endif | |
2096 | } | |
2097 | ||
2098 | int SSL_COMP_get_id(const SSL_COMP *comp) | |
2099 | { | |
2100 | #ifndef OPENSSL_NO_COMP | |
2101 | return comp->id; | |
2102 | #else | |
2103 | return -1; | |
2104 | #endif | |
2105 | } | |
2106 | ||
38b051a1 TM |
2107 | const SSL_CIPHER *ssl_get_cipher_by_char(SSL_CONNECTION *s, |
2108 | const unsigned char *ptr, | |
60d685d1 | 2109 | int all) |
0f113f3e | 2110 | { |
38b051a1 | 2111 | const SSL_CIPHER *c = SSL_CONNECTION_GET_SSL(s)->method->get_cipher_by_char(ptr); |
1316ca80 | 2112 | |
60d685d1 | 2113 | if (c == NULL || (!all && c->valid == 0)) |
0f113f3e MC |
2114 | return NULL; |
2115 | return c; | |
2116 | } | |
94a209d8 DSH |
2117 | |
2118 | const SSL_CIPHER *SSL_CIPHER_find(SSL *ssl, const unsigned char *ptr) | |
0f113f3e MC |
2119 | { |
2120 | return ssl->method->get_cipher_by_char(ptr); | |
2121 | } | |
98c9ce2f DSH |
2122 | |
2123 | int SSL_CIPHER_get_cipher_nid(const SSL_CIPHER *c) | |
2124 | { | |
2125 | int i; | |
2126 | if (c == NULL) | |
3ec13237 | 2127 | return NID_undef; |
98c9ce2f DSH |
2128 | i = ssl_cipher_info_lookup(ssl_cipher_table_cipher, c->algorithm_enc); |
2129 | if (i == -1) | |
3ec13237 | 2130 | return NID_undef; |
98c9ce2f DSH |
2131 | return ssl_cipher_table_cipher[i].nid; |
2132 | } | |
2133 | ||
2134 | int SSL_CIPHER_get_digest_nid(const SSL_CIPHER *c) | |
2135 | { | |
1316ca80 TS |
2136 | int i = ssl_cipher_info_lookup(ssl_cipher_table_mac, c->algorithm_mac); |
2137 | ||
98c9ce2f | 2138 | if (i == -1) |
3ec13237 | 2139 | return NID_undef; |
98c9ce2f DSH |
2140 | return ssl_cipher_table_mac[i].nid; |
2141 | } | |
3ec13237 TS |
2142 | |
2143 | int SSL_CIPHER_get_kx_nid(const SSL_CIPHER *c) | |
2144 | { | |
2145 | int i = ssl_cipher_info_lookup(ssl_cipher_table_kx, c->algorithm_mkey); | |
1316ca80 | 2146 | |
3ec13237 TS |
2147 | if (i == -1) |
2148 | return NID_undef; | |
2149 | return ssl_cipher_table_kx[i].nid; | |
2150 | } | |
2151 | ||
2152 | int SSL_CIPHER_get_auth_nid(const SSL_CIPHER *c) | |
2153 | { | |
1316ca80 TS |
2154 | int i = ssl_cipher_info_lookup(ssl_cipher_table_auth, c->algorithm_auth); |
2155 | ||
3ec13237 TS |
2156 | if (i == -1) |
2157 | return NID_undef; | |
8eb33e4f | 2158 | return ssl_cipher_table_auth[i].nid; |
3ec13237 TS |
2159 | } |
2160 | ||
ba4df682 MC |
2161 | const EVP_MD *SSL_CIPHER_get_handshake_digest(const SSL_CIPHER *c) |
2162 | { | |
72257204 | 2163 | int idx = c->algorithm2 & SSL_HANDSHAKE_MAC_MASK; |
ba4df682 | 2164 | |
ba4df682 MC |
2165 | if (idx < 0 || idx >= SSL_MD_NUM_IDX) |
2166 | return NULL; | |
c8f6c28a | 2167 | return EVP_get_digestbynid(ssl_cipher_table_mac[idx].nid); |
ba4df682 MC |
2168 | } |
2169 | ||
3ec13237 TS |
2170 | int SSL_CIPHER_is_aead(const SSL_CIPHER *c) |
2171 | { | |
2172 | return (c->algorithm_mac & SSL_AEAD) ? 1 : 0; | |
2173 | } | |
045bd047 DW |
2174 | |
2175 | int ssl_cipher_get_overhead(const SSL_CIPHER *c, size_t *mac_overhead, | |
2176 | size_t *int_overhead, size_t *blocksize, | |
2177 | size_t *ext_overhead) | |
2178 | { | |
2179 | size_t mac = 0, in = 0, blk = 0, out = 0; | |
2180 | ||
2181 | /* Some hard-coded numbers for the CCM/Poly1305 MAC overhead | |
2182 | * because there are no handy #defines for those. */ | |
bc326738 | 2183 | if (c->algorithm_enc & (SSL_AESGCM | SSL_ARIAGCM)) { |
045bd047 DW |
2184 | out = EVP_GCM_TLS_EXPLICIT_IV_LEN + EVP_GCM_TLS_TAG_LEN; |
2185 | } else if (c->algorithm_enc & (SSL_AES128CCM | SSL_AES256CCM)) { | |
2186 | out = EVP_CCM_TLS_EXPLICIT_IV_LEN + 16; | |
2187 | } else if (c->algorithm_enc & (SSL_AES128CCM8 | SSL_AES256CCM8)) { | |
2188 | out = EVP_CCM_TLS_EXPLICIT_IV_LEN + 8; | |
2189 | } else if (c->algorithm_enc & SSL_CHACHA20POLY1305) { | |
2190 | out = 16; | |
2191 | } else if (c->algorithm_mac & SSL_AEAD) { | |
2192 | /* We're supposed to have handled all the AEAD modes above */ | |
2193 | return 0; | |
2194 | } else { | |
2195 | /* Non-AEAD modes. Calculate MAC/cipher overhead separately */ | |
2196 | int digest_nid = SSL_CIPHER_get_digest_nid(c); | |
2197 | const EVP_MD *e_md = EVP_get_digestbynid(digest_nid); | |
2198 | ||
2199 | if (e_md == NULL) | |
2200 | return 0; | |
2201 | ||
ed576acd | 2202 | mac = EVP_MD_get_size(e_md); |
045bd047 DW |
2203 | if (c->algorithm_enc != SSL_eNULL) { |
2204 | int cipher_nid = SSL_CIPHER_get_cipher_nid(c); | |
2205 | const EVP_CIPHER *e_ciph = EVP_get_cipherbynid(cipher_nid); | |
2206 | ||
2207 | /* If it wasn't AEAD or SSL_eNULL, we expect it to be a | |
2208 | known CBC cipher. */ | |
2209 | if (e_ciph == NULL || | |
ed576acd | 2210 | EVP_CIPHER_get_mode(e_ciph) != EVP_CIPH_CBC_MODE) |
045bd047 DW |
2211 | return 0; |
2212 | ||
2213 | in = 1; /* padding length byte */ | |
ed576acd TM |
2214 | out = EVP_CIPHER_get_iv_length(e_ciph); |
2215 | blk = EVP_CIPHER_get_block_size(e_ciph); | |
045bd047 DW |
2216 | } |
2217 | } | |
2218 | ||
2219 | *mac_overhead = mac; | |
2220 | *int_overhead = in; | |
2221 | *blocksize = blk; | |
2222 | *ext_overhead = out; | |
2223 | ||
2224 | return 1; | |
2225 | } | |
c04cd728 | 2226 | |
a68eee67 | 2227 | int ssl_cert_is_disabled(SSL_CTX *ctx, size_t idx) |
c04cd728 DSH |
2228 | { |
2229 | const SSL_CERT_LOOKUP *cl = ssl_cert_lookup_by_idx(idx); | |
2230 | ||
a68eee67 | 2231 | if (cl == NULL || (cl->amask & ctx->disabled_auth_mask) != 0) |
c04cd728 DSH |
2232 | return 1; |
2233 | return 0; | |
2234 | } | |
5d120511 TS |
2235 | |
2236 | /* | |
2237 | * Default list of TLSv1.2 (and earlier) ciphers | |
2238 | * SSL_DEFAULT_CIPHER_LIST deprecated in 3.0.0 | |
2239 | * Update both macro and function simultaneously | |
2240 | */ | |
2241 | const char *OSSL_default_cipher_list(void) | |
2242 | { | |
2243 | return "ALL:!COMPLEMENTOFDEFAULT:!eNULL"; | |
2244 | } | |
2245 | ||
2246 | /* | |
2247 | * Default list of TLSv1.3 (and later) ciphers | |
2248 | * TLS_DEFAULT_CIPHERSUITES deprecated in 3.0.0 | |
2249 | * Update both macro and function simultaneously | |
2250 | */ | |
2251 | const char *OSSL_default_ciphersuites(void) | |
2252 | { | |
2253 | return "TLS_AES_256_GCM_SHA384:" | |
5d120511 | 2254 | "TLS_CHACHA20_POLY1305_SHA256:" |
5d120511 TS |
2255 | "TLS_AES_128_GCM_SHA256"; |
2256 | } |