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846e33c7 | 1 | /* |
3c7d0945 | 2 | * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. |
aa8f3d76 | 3 | * Copyright (c) 2002, Oracle and/or its affiliates. All rights reserved |
675f605d | 4 | * |
2c18d164 | 5 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
846e33c7 RS |
6 | * this file except in compliance with the License. You can obtain a copy |
7 | * in the file LICENSE in the source distribution or at | |
8 | * https://www.openssl.org/source/license.html | |
ca8e5b9b | 9 | */ |
846e33c7 | 10 | |
d02b48c6 | 11 | #include <stdio.h> |
b379fe6c | 12 | #include <sys/types.h> |
17f389bb | 13 | |
677963e5 | 14 | #include "internal/nelem.h" |
68570797 | 15 | #include "internal/o_dir.h" |
ec577822 BM |
16 | #include <openssl/bio.h> |
17 | #include <openssl/pem.h> | |
bb7cd4e3 | 18 | #include <openssl/x509v3.h> |
3c27208f | 19 | #include <openssl/dh.h> |
d095b68d | 20 | #include <openssl/bn.h> |
5c4328f0 | 21 | #include <openssl/crypto.h> |
cd420b0b | 22 | #include "internal/refcount.h" |
d02b48c6 | 23 | #include "ssl_locl.h" |
cd933ebd | 24 | #include "ssl_cert_table.h" |
c2e4e5d2 | 25 | #include "internal/thread_once.h" |
d02b48c6 | 26 | |
a230b26e EK |
27 | static int ssl_security_default_callback(const SSL *s, const SSL_CTX *ctx, |
28 | int op, int bits, int nid, void *other, | |
0f113f3e | 29 | void *ex); |
b362ccab | 30 | |
16203f7b AG |
31 | static CRYPTO_ONCE ssl_x509_store_ctx_once = CRYPTO_ONCE_STATIC_INIT; |
32 | static volatile int ssl_x509_store_ctx_idx = -1; | |
0f113f3e | 33 | |
c2e4e5d2 | 34 | DEFINE_RUN_ONCE_STATIC(ssl_x509_store_ctx_init) |
16203f7b AG |
35 | { |
36 | ssl_x509_store_ctx_idx = X509_STORE_CTX_get_ex_new_index(0, | |
a230b26e EK |
37 | "SSL for verify callback", |
38 | NULL, NULL, NULL); | |
c2e4e5d2 | 39 | return ssl_x509_store_ctx_idx >= 0; |
16203f7b | 40 | } |
0f113f3e | 41 | |
16203f7b AG |
42 | int SSL_get_ex_data_X509_STORE_CTX_idx(void) |
43 | { | |
0f113f3e | 44 | |
c2e4e5d2 RL |
45 | if (!RUN_ONCE(&ssl_x509_store_ctx_once, ssl_x509_store_ctx_init)) |
46 | return -1; | |
0f113f3e MC |
47 | return ssl_x509_store_ctx_idx; |
48 | } | |
dfeab068 | 49 | |
6b691a5c | 50 | CERT *ssl_cert_new(void) |
0f113f3e | 51 | { |
b51bce94 | 52 | CERT *ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e | 53 | |
0f113f3e MC |
54 | if (ret == NULL) { |
55 | SSLerr(SSL_F_SSL_CERT_NEW, ERR_R_MALLOC_FAILURE); | |
16203f7b | 56 | return NULL; |
0f113f3e | 57 | } |
0f113f3e | 58 | |
d0ff28f8 | 59 | ret->key = &(ret->pkeys[SSL_PKEY_RSA]); |
0f113f3e | 60 | ret->references = 1; |
0f113f3e MC |
61 | ret->sec_cb = ssl_security_default_callback; |
62 | ret->sec_level = OPENSSL_TLS_SECURITY_LEVEL; | |
63 | ret->sec_ex = NULL; | |
16203f7b AG |
64 | ret->lock = CRYPTO_THREAD_lock_new(); |
65 | if (ret->lock == NULL) { | |
66 | SSLerr(SSL_F_SSL_CERT_NEW, ERR_R_MALLOC_FAILURE); | |
67 | OPENSSL_free(ret); | |
68 | return NULL; | |
69 | } | |
70 | ||
71 | return ret; | |
0f113f3e | 72 | } |
d02b48c6 | 73 | |
ca8e5b9b | 74 | CERT *ssl_cert_dup(CERT *cert) |
0f113f3e | 75 | { |
b51bce94 | 76 | CERT *ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
77 | int i; |
78 | ||
0f113f3e MC |
79 | if (ret == NULL) { |
80 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
16203f7b | 81 | return NULL; |
0f113f3e MC |
82 | } |
83 | ||
0e04674e | 84 | ret->references = 1; |
16f8d4eb | 85 | ret->key = &ret->pkeys[cert->key - cert->pkeys]; |
16203f7b | 86 | ret->lock = CRYPTO_THREAD_lock_new(); |
aeb5b955 | 87 | if (ret->lock == NULL) { |
16203f7b AG |
88 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); |
89 | OPENSSL_free(ret); | |
90 | return NULL; | |
91 | } | |
bc36ee62 | 92 | #ifndef OPENSSL_NO_DH |
0f113f3e | 93 | if (cert->dh_tmp != NULL) { |
e2b420fd DSH |
94 | ret->dh_tmp = cert->dh_tmp; |
95 | EVP_PKEY_up_ref(ret->dh_tmp); | |
0f113f3e MC |
96 | } |
97 | ret->dh_tmp_cb = cert->dh_tmp_cb; | |
98 | ret->dh_tmp_auto = cert->dh_tmp_auto; | |
ca8e5b9b BM |
99 | #endif |
100 | ||
0f113f3e MC |
101 | for (i = 0; i < SSL_PKEY_NUM; i++) { |
102 | CERT_PKEY *cpk = cert->pkeys + i; | |
103 | CERT_PKEY *rpk = ret->pkeys + i; | |
104 | if (cpk->x509 != NULL) { | |
105 | rpk->x509 = cpk->x509; | |
05f0fb9f | 106 | X509_up_ref(rpk->x509); |
0f113f3e MC |
107 | } |
108 | ||
109 | if (cpk->privatekey != NULL) { | |
110 | rpk->privatekey = cpk->privatekey; | |
3aeb9348 | 111 | EVP_PKEY_up_ref(cpk->privatekey); |
0f113f3e MC |
112 | } |
113 | ||
114 | if (cpk->chain) { | |
115 | rpk->chain = X509_chain_up_ref(cpk->chain); | |
116 | if (!rpk->chain) { | |
117 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
118 | goto err; | |
119 | } | |
120 | } | |
0f113f3e MC |
121 | if (cert->pkeys[i].serverinfo != NULL) { |
122 | /* Just copy everything. */ | |
123 | ret->pkeys[i].serverinfo = | |
124 | OPENSSL_malloc(cert->pkeys[i].serverinfo_length); | |
125 | if (ret->pkeys[i].serverinfo == NULL) { | |
126 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
127 | goto err; | |
128 | } | |
a230b26e | 129 | ret->pkeys[i].serverinfo_length = cert->pkeys[i].serverinfo_length; |
0f113f3e | 130 | memcpy(ret->pkeys[i].serverinfo, |
a230b26e | 131 | cert->pkeys[i].serverinfo, cert->pkeys[i].serverinfo_length); |
0f113f3e | 132 | } |
0f113f3e MC |
133 | } |
134 | ||
76106e60 | 135 | /* Configured sigalgs copied across */ |
0f113f3e | 136 | if (cert->conf_sigalgs) { |
703bcee0 MC |
137 | ret->conf_sigalgs = OPENSSL_malloc(cert->conf_sigalgslen |
138 | * sizeof(*cert->conf_sigalgs)); | |
a71edf3b | 139 | if (ret->conf_sigalgs == NULL) |
0f113f3e | 140 | goto err; |
703bcee0 MC |
141 | memcpy(ret->conf_sigalgs, cert->conf_sigalgs, |
142 | cert->conf_sigalgslen * sizeof(*cert->conf_sigalgs)); | |
0f113f3e MC |
143 | ret->conf_sigalgslen = cert->conf_sigalgslen; |
144 | } else | |
145 | ret->conf_sigalgs = NULL; | |
146 | ||
147 | if (cert->client_sigalgs) { | |
703bcee0 MC |
148 | ret->client_sigalgs = OPENSSL_malloc(cert->client_sigalgslen |
149 | * sizeof(*cert->client_sigalgs)); | |
a71edf3b | 150 | if (ret->client_sigalgs == NULL) |
0f113f3e MC |
151 | goto err; |
152 | memcpy(ret->client_sigalgs, cert->client_sigalgs, | |
703bcee0 | 153 | cert->client_sigalgslen * sizeof(*cert->client_sigalgs)); |
0f113f3e MC |
154 | ret->client_sigalgslen = cert->client_sigalgslen; |
155 | } else | |
156 | ret->client_sigalgs = NULL; | |
157 | /* Shared sigalgs also NULL */ | |
158 | ret->shared_sigalgs = NULL; | |
159 | /* Copy any custom client certificate types */ | |
75c13e78 DSH |
160 | if (cert->ctype) { |
161 | ret->ctype = OPENSSL_memdup(cert->ctype, cert->ctype_len); | |
162 | if (ret->ctype == NULL) | |
0f113f3e | 163 | goto err; |
75c13e78 | 164 | ret->ctype_len = cert->ctype_len; |
0f113f3e MC |
165 | } |
166 | ||
167 | ret->cert_flags = cert->cert_flags; | |
168 | ||
169 | ret->cert_cb = cert->cert_cb; | |
170 | ret->cert_cb_arg = cert->cert_cb_arg; | |
171 | ||
172 | if (cert->verify_store) { | |
c001ce33 | 173 | X509_STORE_up_ref(cert->verify_store); |
0f113f3e MC |
174 | ret->verify_store = cert->verify_store; |
175 | } | |
176 | ||
177 | if (cert->chain_store) { | |
c001ce33 | 178 | X509_STORE_up_ref(cert->chain_store); |
0f113f3e MC |
179 | ret->chain_store = cert->chain_store; |
180 | } | |
181 | ||
0f113f3e MC |
182 | ret->sec_cb = cert->sec_cb; |
183 | ret->sec_level = cert->sec_level; | |
184 | ret->sec_ex = cert->sec_ex; | |
b362ccab | 185 | |
43ae5eed | 186 | if (!custom_exts_copy(&ret->custext, &cert->custext)) |
0f113f3e | 187 | goto err; |
9076bd25 | 188 | #ifndef OPENSSL_NO_PSK |
df6da24b | 189 | if (cert->psk_identity_hint) { |
7644a9ae | 190 | ret->psk_identity_hint = OPENSSL_strdup(cert->psk_identity_hint); |
df6da24b DSH |
191 | if (ret->psk_identity_hint == NULL) |
192 | goto err; | |
193 | } | |
9076bd25 | 194 | #endif |
16203f7b | 195 | return ret; |
0f113f3e MC |
196 | |
197 | err: | |
198 | ssl_cert_free(ret); | |
9ade64de | 199 | |
0f113f3e MC |
200 | return NULL; |
201 | } | |
ca8e5b9b | 202 | |
a5ee80b9 DSH |
203 | /* Free up and clear all certificates and chains */ |
204 | ||
205 | void ssl_cert_clear_certs(CERT *c) | |
0f113f3e MC |
206 | { |
207 | int i; | |
208 | if (c == NULL) | |
209 | return; | |
210 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
211 | CERT_PKEY *cpk = c->pkeys + i; | |
222561fe RS |
212 | X509_free(cpk->x509); |
213 | cpk->x509 = NULL; | |
c5ba2d99 RS |
214 | EVP_PKEY_free(cpk->privatekey); |
215 | cpk->privatekey = NULL; | |
222561fe RS |
216 | sk_X509_pop_free(cpk->chain, X509_free); |
217 | cpk->chain = NULL; | |
25aaa98a RS |
218 | OPENSSL_free(cpk->serverinfo); |
219 | cpk->serverinfo = NULL; | |
220 | cpk->serverinfo_length = 0; | |
0f113f3e MC |
221 | } |
222 | } | |
ca8e5b9b | 223 | |
eb90a483 | 224 | void ssl_cert_free(CERT *c) |
0f113f3e MC |
225 | { |
226 | int i; | |
d02b48c6 | 227 | |
e6e9170d RS |
228 | if (c == NULL) |
229 | return; | |
2f545ae4 | 230 | CRYPTO_DOWN_REF(&c->references, &i, c->lock); |
f3f1cf84 | 231 | REF_PRINT_COUNT("CERT", c); |
0f113f3e MC |
232 | if (i > 0) |
233 | return; | |
f3f1cf84 | 234 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 235 | |
bc36ee62 | 236 | #ifndef OPENSSL_NO_DH |
e2b420fd | 237 | EVP_PKEY_free(c->dh_tmp); |
d02b48c6 RE |
238 | #endif |
239 | ||
0f113f3e | 240 | ssl_cert_clear_certs(c); |
25aaa98a RS |
241 | OPENSSL_free(c->conf_sigalgs); |
242 | OPENSSL_free(c->client_sigalgs); | |
243 | OPENSSL_free(c->shared_sigalgs); | |
75c13e78 | 244 | OPENSSL_free(c->ctype); |
222561fe RS |
245 | X509_STORE_free(c->verify_store); |
246 | X509_STORE_free(c->chain_store); | |
43ae5eed | 247 | custom_exts_free(&c->custext); |
df6da24b DSH |
248 | #ifndef OPENSSL_NO_PSK |
249 | OPENSSL_free(c->psk_identity_hint); | |
250 | #endif | |
16203f7b | 251 | CRYPTO_THREAD_lock_free(c->lock); |
0f113f3e MC |
252 | OPENSSL_free(c); |
253 | } | |
d02b48c6 | 254 | |
b362ccab | 255 | int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) |
0f113f3e MC |
256 | { |
257 | int i, r; | |
258 | CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; | |
259 | if (!cpk) | |
260 | return 0; | |
0f113f3e MC |
261 | for (i = 0; i < sk_X509_num(chain); i++) { |
262 | r = ssl_security_cert(s, ctx, sk_X509_value(chain, i), 0, 0); | |
263 | if (r != 1) { | |
264 | SSLerr(SSL_F_SSL_CERT_SET0_CHAIN, r); | |
265 | return 0; | |
266 | } | |
267 | } | |
4379d5ce | 268 | sk_X509_pop_free(cpk->chain, X509_free); |
0f113f3e MC |
269 | cpk->chain = chain; |
270 | return 1; | |
271 | } | |
f71c6e52 | 272 | |
b362ccab | 273 | int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) |
0f113f3e MC |
274 | { |
275 | STACK_OF(X509) *dchain; | |
276 | if (!chain) | |
277 | return ssl_cert_set0_chain(s, ctx, NULL); | |
278 | dchain = X509_chain_up_ref(chain); | |
279 | if (!dchain) | |
280 | return 0; | |
281 | if (!ssl_cert_set0_chain(s, ctx, dchain)) { | |
282 | sk_X509_pop_free(dchain, X509_free); | |
283 | return 0; | |
284 | } | |
285 | return 1; | |
286 | } | |
f71c6e52 | 287 | |
b362ccab | 288 | int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) |
0f113f3e MC |
289 | { |
290 | int r; | |
291 | CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; | |
292 | if (!cpk) | |
293 | return 0; | |
294 | r = ssl_security_cert(s, ctx, x, 0, 0); | |
295 | if (r != 1) { | |
296 | SSLerr(SSL_F_SSL_CERT_ADD0_CHAIN_CERT, r); | |
297 | return 0; | |
298 | } | |
299 | if (!cpk->chain) | |
300 | cpk->chain = sk_X509_new_null(); | |
301 | if (!cpk->chain || !sk_X509_push(cpk->chain, x)) | |
302 | return 0; | |
303 | return 1; | |
304 | } | |
f71c6e52 | 305 | |
b362ccab | 306 | int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) |
0f113f3e MC |
307 | { |
308 | if (!ssl_cert_add0_chain_cert(s, ctx, x)) | |
309 | return 0; | |
05f0fb9f | 310 | X509_up_ref(x); |
0f113f3e MC |
311 | return 1; |
312 | } | |
7b6b246f RS |
313 | |
314 | int ssl_cert_select_current(CERT *c, X509 *x) | |
0f113f3e MC |
315 | { |
316 | int i; | |
317 | if (x == NULL) | |
318 | return 0; | |
319 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
320 | CERT_PKEY *cpk = c->pkeys + i; | |
321 | if (cpk->x509 == x && cpk->privatekey) { | |
322 | c->key = cpk; | |
323 | return 1; | |
324 | } | |
325 | } | |
326 | ||
327 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
328 | CERT_PKEY *cpk = c->pkeys + i; | |
329 | if (cpk->privatekey && cpk->x509 && !X509_cmp(cpk->x509, x)) { | |
330 | c->key = cpk; | |
331 | return 1; | |
332 | } | |
333 | } | |
334 | return 0; | |
335 | } | |
0f78819c DSH |
336 | |
337 | int ssl_cert_set_current(CERT *c, long op) | |
0f113f3e MC |
338 | { |
339 | int i, idx; | |
340 | if (!c) | |
341 | return 0; | |
342 | if (op == SSL_CERT_SET_FIRST) | |
343 | idx = 0; | |
344 | else if (op == SSL_CERT_SET_NEXT) { | |
345 | idx = (int)(c->key - c->pkeys + 1); | |
346 | if (idx >= SSL_PKEY_NUM) | |
347 | return 0; | |
348 | } else | |
349 | return 0; | |
350 | for (i = idx; i < SSL_PKEY_NUM; i++) { | |
351 | CERT_PKEY *cpk = c->pkeys + i; | |
352 | if (cpk->x509 && cpk->privatekey) { | |
353 | c->key = cpk; | |
354 | return 1; | |
355 | } | |
356 | } | |
357 | return 0; | |
358 | } | |
359 | ||
360 | void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg) | |
361 | { | |
362 | c->cert_cb = cb; | |
363 | c->cert_cb_arg = arg; | |
364 | } | |
18d71588 | 365 | |
0f113f3e MC |
366 | int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk) |
367 | { | |
368 | X509 *x; | |
f0e0fd51 | 369 | int i = 0; |
0f113f3e | 370 | X509_STORE *verify_store; |
f0e0fd51 | 371 | X509_STORE_CTX *ctx = NULL; |
919ba009 | 372 | X509_VERIFY_PARAM *param; |
0f113f3e | 373 | |
f0e0fd51 RS |
374 | if ((sk == NULL) || (sk_X509_num(sk) == 0)) |
375 | return 0; | |
376 | ||
0f113f3e MC |
377 | if (s->cert->verify_store) |
378 | verify_store = s->cert->verify_store; | |
379 | else | |
380 | verify_store = s->ctx->cert_store; | |
381 | ||
f0e0fd51 RS |
382 | ctx = X509_STORE_CTX_new(); |
383 | if (ctx == NULL) { | |
384 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
385 | return 0; | |
386 | } | |
0f113f3e MC |
387 | |
388 | x = sk_X509_value(sk, 0); | |
f0e0fd51 | 389 | if (!X509_STORE_CTX_init(ctx, verify_store, x, sk)) { |
0f113f3e | 390 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_X509_LIB); |
f0e0fd51 | 391 | goto end; |
0f113f3e | 392 | } |
f0e0fd51 | 393 | param = X509_STORE_CTX_get0_param(ctx); |
fbb82a60 VD |
394 | /* |
395 | * XXX: Separate @AUTHSECLEVEL and @TLSSECLEVEL would be useful at some | |
396 | * point, for now a single @SECLEVEL sets the same policy for TLS crypto | |
397 | * and PKI authentication. | |
398 | */ | |
399 | X509_VERIFY_PARAM_set_auth_level(param, SSL_get_security_level(s)); | |
919ba009 | 400 | |
0f113f3e | 401 | /* Set suite B flags if needed */ |
f0e0fd51 | 402 | X509_STORE_CTX_set_flags(ctx, tls1_suiteb(s)); |
a230b26e EK |
403 | if (!X509_STORE_CTX_set_ex_data |
404 | (ctx, SSL_get_ex_data_X509_STORE_CTX_idx(), s)) { | |
a98810bf F |
405 | goto end; |
406 | } | |
0f113f3e | 407 | |
919ba009 VD |
408 | /* Verify via DANE if enabled */ |
409 | if (DANETLS_ENABLED(&s->dane)) | |
f0e0fd51 | 410 | X509_STORE_CTX_set0_dane(ctx, &s->dane); |
919ba009 | 411 | |
0f113f3e MC |
412 | /* |
413 | * We need to inherit the verify parameters. These can be determined by | |
414 | * the context: if its a server it will verify SSL client certificates or | |
415 | * vice versa. | |
416 | */ | |
417 | ||
f0e0fd51 | 418 | X509_STORE_CTX_set_default(ctx, s->server ? "ssl_client" : "ssl_server"); |
0f113f3e | 419 | /* |
919ba009 | 420 | * Anything non-default in "s->param" should overwrite anything in the ctx. |
0f113f3e | 421 | */ |
919ba009 | 422 | X509_VERIFY_PARAM_set1(param, s->param); |
0f113f3e MC |
423 | |
424 | if (s->verify_callback) | |
f0e0fd51 | 425 | X509_STORE_CTX_set_verify_cb(ctx, s->verify_callback); |
0f113f3e MC |
426 | |
427 | if (s->ctx->app_verify_callback != NULL) | |
f0e0fd51 | 428 | i = s->ctx->app_verify_callback(ctx, s->ctx->app_verify_arg); |
fbb82a60 | 429 | else |
f0e0fd51 | 430 | i = X509_verify_cert(ctx); |
d02b48c6 | 431 | |
f0e0fd51 | 432 | s->verify_result = X509_STORE_CTX_get_error(ctx); |
696178ed DSH |
433 | sk_X509_pop_free(s->verified_chain, X509_free); |
434 | s->verified_chain = NULL; | |
f0e0fd51 RS |
435 | if (X509_STORE_CTX_get0_chain(ctx) != NULL) { |
436 | s->verified_chain = X509_STORE_CTX_get1_chain(ctx); | |
696178ed DSH |
437 | if (s->verified_chain == NULL) { |
438 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
439 | i = 0; | |
440 | } | |
441 | } | |
919ba009 VD |
442 | |
443 | /* Move peername from the store context params to the SSL handle's */ | |
444 | X509_VERIFY_PARAM_move_peername(s->param, param); | |
445 | ||
a230b26e | 446 | end: |
f0e0fd51 RS |
447 | X509_STORE_CTX_free(ctx); |
448 | return i; | |
0f113f3e | 449 | } |
d02b48c6 | 450 | |
fa7c2637 DSH |
451 | static void set0_CA_list(STACK_OF(X509_NAME) **ca_list, |
452 | STACK_OF(X509_NAME) *name_list) | |
0f113f3e | 453 | { |
222561fe | 454 | sk_X509_NAME_pop_free(*ca_list, X509_NAME_free); |
0f113f3e MC |
455 | *ca_list = name_list; |
456 | } | |
d02b48c6 | 457 | |
86135bed | 458 | STACK_OF(X509_NAME) *SSL_dup_CA_list(const STACK_OF(X509_NAME) *sk) |
0f113f3e MC |
459 | { |
460 | int i; | |
e431363f | 461 | const int num = sk_X509_NAME_num(sk); |
0f113f3e MC |
462 | STACK_OF(X509_NAME) *ret; |
463 | X509_NAME *name; | |
464 | ||
7a908204 | 465 | ret = sk_X509_NAME_new_reserve(NULL, num); |
3c82e437 F |
466 | if (ret == NULL) { |
467 | SSLerr(SSL_F_SSL_DUP_CA_LIST, ERR_R_MALLOC_FAILURE); | |
468 | return NULL; | |
469 | } | |
e431363f | 470 | for (i = 0; i < num; i++) { |
0f113f3e | 471 | name = X509_NAME_dup(sk_X509_NAME_value(sk, i)); |
e431363f | 472 | if (name == NULL) { |
32f3b98d | 473 | SSLerr(SSL_F_SSL_DUP_CA_LIST, ERR_R_MALLOC_FAILURE); |
0f113f3e | 474 | sk_X509_NAME_pop_free(ret, X509_NAME_free); |
3c82e437 | 475 | return NULL; |
0f113f3e | 476 | } |
e431363f | 477 | sk_X509_NAME_push(ret, name); /* Cannot fail after reserve call */ |
0f113f3e | 478 | } |
32f3b98d | 479 | return ret; |
0f113f3e MC |
480 | } |
481 | ||
fa7c2637 DSH |
482 | void SSL_set0_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list) |
483 | { | |
484 | set0_CA_list(&s->ca_names, name_list); | |
485 | } | |
486 | ||
487 | void SSL_CTX_set0_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list) | |
0f113f3e | 488 | { |
fa7c2637 DSH |
489 | set0_CA_list(&ctx->ca_names, name_list); |
490 | } | |
491 | ||
492 | const STACK_OF(X509_NAME) *SSL_CTX_get0_CA_list(const SSL_CTX *ctx) | |
493 | { | |
494 | return ctx->ca_names; | |
495 | } | |
496 | ||
497 | const STACK_OF(X509_NAME) *SSL_get0_CA_list(const SSL *s) | |
498 | { | |
499 | return s->ca_names != NULL ? s->ca_names : s->ctx->ca_names; | |
0f113f3e MC |
500 | } |
501 | ||
502 | void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list) | |
503 | { | |
98732979 | 504 | set0_CA_list(&ctx->client_ca_names, name_list); |
0f113f3e | 505 | } |
d02b48c6 | 506 | |
0821bcd4 | 507 | STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) |
0f113f3e | 508 | { |
98732979 | 509 | return ctx->client_ca_names; |
fa7c2637 DSH |
510 | } |
511 | ||
512 | void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list) | |
513 | { | |
98732979 | 514 | set0_CA_list(&s->client_ca_names, name_list); |
fa7c2637 DSH |
515 | } |
516 | ||
517 | const STACK_OF(X509_NAME) *SSL_get0_peer_CA_list(const SSL *s) | |
518 | { | |
519 | return s->s3 != NULL ? s->s3->tmp.peer_ca_names : NULL; | |
0f113f3e | 520 | } |
d02b48c6 | 521 | |
0821bcd4 | 522 | STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s) |
0f113f3e | 523 | { |
fa7c2637 DSH |
524 | if (!s->server) |
525 | return s->s3 != NULL ? s->s3->tmp.peer_ca_names : NULL; | |
98732979 MC |
526 | return s->client_ca_names != NULL ? s->client_ca_names |
527 | : s->ctx->client_ca_names; | |
0f113f3e MC |
528 | } |
529 | ||
fa7c2637 | 530 | static int add_ca_name(STACK_OF(X509_NAME) **sk, const X509 *x) |
0f113f3e MC |
531 | { |
532 | X509_NAME *name; | |
533 | ||
534 | if (x == NULL) | |
fa7c2637 DSH |
535 | return 0; |
536 | if (*sk == NULL && ((*sk = sk_X509_NAME_new_null()) == NULL)) | |
537 | return 0; | |
0f113f3e MC |
538 | |
539 | if ((name = X509_NAME_dup(X509_get_subject_name(x))) == NULL) | |
fa7c2637 | 540 | return 0; |
0f113f3e MC |
541 | |
542 | if (!sk_X509_NAME_push(*sk, name)) { | |
543 | X509_NAME_free(name); | |
fa7c2637 | 544 | return 0; |
0f113f3e | 545 | } |
fa7c2637 DSH |
546 | return 1; |
547 | } | |
548 | ||
64a48fc7 | 549 | int SSL_add1_to_CA_list(SSL *ssl, const X509 *x) |
fa7c2637 DSH |
550 | { |
551 | return add_ca_name(&ssl->ca_names, x); | |
552 | } | |
553 | ||
64a48fc7 | 554 | int SSL_CTX_add1_to_CA_list(SSL_CTX *ctx, const X509 *x) |
fa7c2637 DSH |
555 | { |
556 | return add_ca_name(&ctx->ca_names, x); | |
0f113f3e MC |
557 | } |
558 | ||
64a48fc7 RL |
559 | /* |
560 | * The following two are older names are to be replaced with | |
561 | * SSL(_CTX)_add1_to_CA_list | |
562 | */ | |
0f113f3e MC |
563 | int SSL_add_client_CA(SSL *ssl, X509 *x) |
564 | { | |
98732979 | 565 | return add_ca_name(&ssl->client_ca_names, x); |
0f113f3e MC |
566 | } |
567 | ||
568 | int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x) | |
569 | { | |
98732979 | 570 | return add_ca_name(&ctx->client_ca_names, x); |
0f113f3e MC |
571 | } |
572 | ||
3e41defe | 573 | static int xname_cmp(const X509_NAME *a, const X509_NAME *b) |
0f113f3e | 574 | { |
3e41defe TM |
575 | unsigned char *abuf = NULL, *bbuf = NULL; |
576 | int alen, blen, ret; | |
577 | ||
578 | /* X509_NAME_cmp() itself casts away constness in this way, so | |
579 | * assume it's safe: | |
580 | */ | |
581 | alen = i2d_X509_NAME((X509_NAME *)a, &abuf); | |
582 | blen = i2d_X509_NAME((X509_NAME *)b, &bbuf); | |
583 | ||
584 | if (alen < 0 || blen < 0) | |
585 | ret = -2; | |
586 | else if (alen != blen) | |
587 | ret = alen - blen; | |
588 | else /* alen == blen */ | |
589 | ret = memcmp(abuf, bbuf, alen); | |
590 | ||
591 | OPENSSL_free(abuf); | |
592 | OPENSSL_free(bbuf); | |
593 | ||
594 | return ret; | |
0f113f3e | 595 | } |
d02b48c6 | 596 | |
3e41defe | 597 | static int xname_sk_cmp(const X509_NAME *const *a, const X509_NAME *const *b) |
7823d792 | 598 | { |
3e41defe | 599 | return xname_cmp(*a, *b); |
7823d792 TF |
600 | } |
601 | ||
602 | static unsigned long xname_hash(const X509_NAME *a) | |
603 | { | |
604 | return X509_NAME_hash((X509_NAME *)a); | |
605 | } | |
606 | ||
0f113f3e | 607 | /** |
eb90a483 BL |
608 | * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed; |
609 | * it doesn't really have anything to do with clients (except that a common use | |
610 | * for a stack of CAs is to send it to the client). Actually, it doesn't have | |
611 | * much to do with CAs, either, since it will load any old cert. | |
612 | * \param file the file containing one or more certs. | |
613 | * \return a ::STACK containing the certs. | |
614 | */ | |
f73e07cf | 615 | STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) |
0f113f3e | 616 | { |
7823d792 | 617 | BIO *in = BIO_new(BIO_s_file()); |
0f113f3e MC |
618 | X509 *x = NULL; |
619 | X509_NAME *xn = NULL; | |
7823d792 | 620 | STACK_OF(X509_NAME) *ret = NULL; |
a230b26e | 621 | LHASH_OF(X509_NAME) *name_hash = lh_X509_NAME_new(xname_hash, xname_cmp); |
0f113f3e | 622 | |
7823d792 | 623 | if ((name_hash == NULL) || (in == NULL)) { |
0f113f3e MC |
624 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); |
625 | goto err; | |
626 | } | |
627 | ||
628 | if (!BIO_read_filename(in, file)) | |
629 | goto err; | |
630 | ||
631 | for (;;) { | |
632 | if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) | |
633 | break; | |
634 | if (ret == NULL) { | |
635 | ret = sk_X509_NAME_new_null(); | |
636 | if (ret == NULL) { | |
637 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); | |
638 | goto err; | |
639 | } | |
640 | } | |
641 | if ((xn = X509_get_subject_name(x)) == NULL) | |
642 | goto err; | |
643 | /* check for duplicates */ | |
644 | xn = X509_NAME_dup(xn); | |
645 | if (xn == NULL) | |
646 | goto err; | |
7823d792 TF |
647 | if (lh_X509_NAME_retrieve(name_hash, xn) != NULL) { |
648 | /* Duplicate. */ | |
0f113f3e | 649 | X509_NAME_free(xn); |
3c82e437 | 650 | xn = NULL; |
7823d792 | 651 | } else { |
9d6daf99 | 652 | lh_X509_NAME_insert(name_hash, xn); |
3c82e437 F |
653 | if (!sk_X509_NAME_push(ret, xn)) |
654 | goto err; | |
0f113f3e MC |
655 | } |
656 | } | |
66696478 | 657 | goto done; |
0f113f3e | 658 | |
0f113f3e | 659 | err: |
3c82e437 | 660 | X509_NAME_free(xn); |
66696478 RS |
661 | sk_X509_NAME_pop_free(ret, X509_NAME_free); |
662 | ret = NULL; | |
663 | done: | |
ca3a82c3 | 664 | BIO_free(in); |
222561fe | 665 | X509_free(x); |
7823d792 | 666 | lh_X509_NAME_free(name_hash); |
0f113f3e MC |
667 | if (ret != NULL) |
668 | ERR_clear_error(); | |
26a7d938 | 669 | return ret; |
0f113f3e | 670 | } |
d02b48c6 | 671 | |
0f113f3e | 672 | /** |
eb90a483 BL |
673 | * Add a file of certs to a stack. |
674 | * \param stack the stack to add to. | |
675 | * \param file the file to add from. All certs in this file that are not | |
676 | * already in the stack will be added. | |
677 | * \return 1 for success, 0 for failure. Note that in the case of failure some | |
678 | * certs may have been added to \c stack. | |
679 | */ | |
680 | ||
661b361b | 681 | int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
0f113f3e MC |
682 | const char *file) |
683 | { | |
684 | BIO *in; | |
685 | X509 *x = NULL; | |
686 | X509_NAME *xn = NULL; | |
687 | int ret = 1; | |
688 | int (*oldcmp) (const X509_NAME *const *a, const X509_NAME *const *b); | |
689 | ||
7823d792 | 690 | oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_sk_cmp); |
0f113f3e | 691 | |
9982cbbb | 692 | in = BIO_new(BIO_s_file()); |
0f113f3e MC |
693 | |
694 | if (in == NULL) { | |
a230b26e | 695 | SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK, ERR_R_MALLOC_FAILURE); |
0f113f3e MC |
696 | goto err; |
697 | } | |
698 | ||
699 | if (!BIO_read_filename(in, file)) | |
700 | goto err; | |
701 | ||
702 | for (;;) { | |
703 | if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) | |
704 | break; | |
705 | if ((xn = X509_get_subject_name(x)) == NULL) | |
706 | goto err; | |
707 | xn = X509_NAME_dup(xn); | |
708 | if (xn == NULL) | |
709 | goto err; | |
3c82e437 F |
710 | if (sk_X509_NAME_find(stack, xn) >= 0) { |
711 | /* Duplicate. */ | |
0f113f3e | 712 | X509_NAME_free(xn); |
3c82e437 F |
713 | } else if (!sk_X509_NAME_push(stack, xn)) { |
714 | X509_NAME_free(xn); | |
715 | goto err; | |
716 | } | |
0f113f3e MC |
717 | } |
718 | ||
719 | ERR_clear_error(); | |
66696478 | 720 | goto done; |
0f113f3e | 721 | |
0f113f3e | 722 | err: |
3c82e437 | 723 | ret = 0; |
66696478 | 724 | done: |
ca3a82c3 | 725 | BIO_free(in); |
25aaa98a | 726 | X509_free(x); |
0f113f3e | 727 | (void)sk_X509_NAME_set_cmp_func(stack, oldcmp); |
0f113f3e MC |
728 | return ret; |
729 | } | |
730 | ||
731 | /** | |
eb90a483 BL |
732 | * Add a directory of certs to a stack. |
733 | * \param stack the stack to append to. | |
734 | * \param dir the directory to append from. All files in this directory will be | |
735 | * examined as potential certs. Any that are acceptable to | |
72e442a3 | 736 | * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be |
eb90a483 BL |
737 | * included. |
738 | * \return 1 for success, 0 for failure. Note that in the case of failure some | |
739 | * certs may have been added to \c stack. | |
740 | */ | |
741 | ||
661b361b | 742 | int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
0f113f3e MC |
743 | const char *dir) |
744 | { | |
745 | OPENSSL_DIR_CTX *d = NULL; | |
746 | const char *filename; | |
747 | int ret = 0; | |
eb90a483 | 748 | |
0f113f3e | 749 | /* Note that a side effect is that the CAs will be sorted by name */ |
4083a229 | 750 | |
0f113f3e MC |
751 | while ((filename = OPENSSL_DIR_read(&d, dir))) { |
752 | char buf[1024]; | |
753 | int r; | |
4083a229 | 754 | |
cbe29648 | 755 | if (strlen(dir) + strlen(filename) + 2 > sizeof(buf)) { |
0f113f3e MC |
756 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, |
757 | SSL_R_PATH_TOO_LONG); | |
758 | goto err; | |
759 | } | |
4083a229 | 760 | #ifdef OPENSSL_SYS_VMS |
cbe29648 | 761 | r = BIO_snprintf(buf, sizeof(buf), "%s%s", dir, filename); |
4083a229 | 762 | #else |
cbe29648 | 763 | r = BIO_snprintf(buf, sizeof(buf), "%s/%s", dir, filename); |
4083a229 | 764 | #endif |
0f113f3e MC |
765 | if (r <= 0 || r >= (int)sizeof(buf)) |
766 | goto err; | |
767 | if (!SSL_add_file_cert_subjects_to_stack(stack, buf)) | |
768 | goto err; | |
769 | } | |
770 | ||
771 | if (errno) { | |
772 | SYSerr(SYS_F_OPENDIR, get_last_sys_error()); | |
773 | ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')"); | |
774 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB); | |
775 | goto err; | |
776 | } | |
777 | ||
778 | ret = 1; | |
779 | ||
780 | err: | |
781 | if (d) | |
782 | OPENSSL_DIR_end(&d); | |
16203f7b | 783 | |
0f113f3e MC |
784 | return ret; |
785 | } | |
285046ec | 786 | |
74ecfab4 | 787 | /* Build a certificate chain for current certificate */ |
b362ccab | 788 | int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags) |
0f113f3e MC |
789 | { |
790 | CERT *c = s ? s->cert : ctx->cert; | |
791 | CERT_PKEY *cpk = c->key; | |
792 | X509_STORE *chain_store = NULL; | |
f0e0fd51 | 793 | X509_STORE_CTX *xs_ctx = NULL; |
0f113f3e MC |
794 | STACK_OF(X509) *chain = NULL, *untrusted = NULL; |
795 | X509 *x; | |
796 | int i, rv = 0; | |
0f113f3e MC |
797 | |
798 | if (!cpk->x509) { | |
799 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_NO_CERTIFICATE_SET); | |
800 | goto err; | |
801 | } | |
802 | /* Rearranging and check the chain: add everything to a store */ | |
803 | if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) { | |
804 | chain_store = X509_STORE_new(); | |
a71edf3b | 805 | if (chain_store == NULL) |
0f113f3e MC |
806 | goto err; |
807 | for (i = 0; i < sk_X509_num(cpk->chain); i++) { | |
808 | x = sk_X509_value(cpk->chain, i); | |
c0452248 | 809 | if (!X509_STORE_add_cert(chain_store, x)) |
0f113f3e | 810 | goto err; |
0f113f3e | 811 | } |
c0452248 RS |
812 | /* Add EE cert too: it might be self signed */ |
813 | if (!X509_STORE_add_cert(chain_store, cpk->x509)) | |
814 | goto err; | |
0f113f3e MC |
815 | } else { |
816 | if (c->chain_store) | |
817 | chain_store = c->chain_store; | |
818 | else if (s) | |
819 | chain_store = s->ctx->cert_store; | |
820 | else | |
821 | chain_store = ctx->cert_store; | |
822 | ||
823 | if (flags & SSL_BUILD_CHAIN_FLAG_UNTRUSTED) | |
824 | untrusted = cpk->chain; | |
825 | } | |
826 | ||
f0e0fd51 RS |
827 | xs_ctx = X509_STORE_CTX_new(); |
828 | if (xs_ctx == NULL) { | |
829 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
830 | goto err; | |
831 | } | |
832 | if (!X509_STORE_CTX_init(xs_ctx, chain_store, cpk->x509, untrusted)) { | |
0f113f3e MC |
833 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, ERR_R_X509_LIB); |
834 | goto err; | |
835 | } | |
836 | /* Set suite B flags if needed */ | |
f0e0fd51 | 837 | X509_STORE_CTX_set_flags(xs_ctx, |
0f113f3e MC |
838 | c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS); |
839 | ||
f0e0fd51 | 840 | i = X509_verify_cert(xs_ctx); |
0f113f3e MC |
841 | if (i <= 0 && flags & SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR) { |
842 | if (flags & SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR) | |
843 | ERR_clear_error(); | |
844 | i = 1; | |
845 | rv = 2; | |
846 | } | |
847 | if (i > 0) | |
f0e0fd51 | 848 | chain = X509_STORE_CTX_get1_chain(xs_ctx); |
0f113f3e MC |
849 | if (i <= 0) { |
850 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_CERTIFICATE_VERIFY_FAILED); | |
f0e0fd51 | 851 | i = X509_STORE_CTX_get_error(xs_ctx); |
0f113f3e MC |
852 | ERR_add_error_data(2, "Verify error:", |
853 | X509_verify_cert_error_string(i)); | |
854 | ||
0f113f3e MC |
855 | goto err; |
856 | } | |
0f113f3e MC |
857 | /* Remove EE certificate from chain */ |
858 | x = sk_X509_shift(chain); | |
859 | X509_free(x); | |
860 | if (flags & SSL_BUILD_CHAIN_FLAG_NO_ROOT) { | |
861 | if (sk_X509_num(chain) > 0) { | |
862 | /* See if last cert is self signed */ | |
863 | x = sk_X509_value(chain, sk_X509_num(chain) - 1); | |
a8d8e06b | 864 | if (X509_get_extension_flags(x) & EXFLAG_SS) { |
0f113f3e MC |
865 | x = sk_X509_pop(chain); |
866 | X509_free(x); | |
867 | } | |
868 | } | |
869 | } | |
870 | /* | |
871 | * Check security level of all CA certificates: EE will have been checked | |
872 | * already. | |
873 | */ | |
874 | for (i = 0; i < sk_X509_num(chain); i++) { | |
875 | x = sk_X509_value(chain, i); | |
876 | rv = ssl_security_cert(s, ctx, x, 0, 0); | |
877 | if (rv != 1) { | |
878 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, rv); | |
879 | sk_X509_pop_free(chain, X509_free); | |
880 | rv = 0; | |
881 | goto err; | |
882 | } | |
883 | } | |
222561fe | 884 | sk_X509_pop_free(cpk->chain, X509_free); |
0f113f3e MC |
885 | cpk->chain = chain; |
886 | if (rv == 0) | |
887 | rv = 1; | |
888 | err: | |
889 | if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) | |
890 | X509_STORE_free(chain_store); | |
f0e0fd51 | 891 | X509_STORE_CTX_free(xs_ctx); |
0f113f3e MC |
892 | |
893 | return rv; | |
894 | } | |
74ecfab4 DSH |
895 | |
896 | int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref) | |
0f113f3e MC |
897 | { |
898 | X509_STORE **pstore; | |
899 | if (chain) | |
900 | pstore = &c->chain_store; | |
901 | else | |
902 | pstore = &c->verify_store; | |
222561fe | 903 | X509_STORE_free(*pstore); |
0f113f3e MC |
904 | *pstore = store; |
905 | if (ref && store) | |
c001ce33 | 906 | X509_STORE_up_ref(store); |
0f113f3e MC |
907 | return 1; |
908 | } | |
909 | ||
a230b26e EK |
910 | static int ssl_security_default_callback(const SSL *s, const SSL_CTX *ctx, |
911 | int op, int bits, int nid, void *other, | |
0f113f3e MC |
912 | void *ex) |
913 | { | |
914 | int level, minbits; | |
915 | static const int minbits_table[5] = { 80, 112, 128, 192, 256 }; | |
916 | if (ctx) | |
917 | level = SSL_CTX_get_security_level(ctx); | |
918 | else | |
919 | level = SSL_get_security_level(s); | |
a7cf07b4 VD |
920 | |
921 | if (level <= 0) { | |
922 | /* | |
923 | * No EDH keys weaker than 1024-bits even at level 0, otherwise, | |
924 | * anything goes. | |
925 | */ | |
926 | if (op == SSL_SECOP_TMP_DH && bits < 80) | |
927 | return 0; | |
0f113f3e | 928 | return 1; |
a7cf07b4 | 929 | } |
0f113f3e MC |
930 | if (level > 5) |
931 | level = 5; | |
932 | minbits = minbits_table[level - 1]; | |
933 | switch (op) { | |
934 | case SSL_SECOP_CIPHER_SUPPORTED: | |
935 | case SSL_SECOP_CIPHER_SHARED: | |
936 | case SSL_SECOP_CIPHER_CHECK: | |
937 | { | |
938 | const SSL_CIPHER *c = other; | |
939 | /* No ciphers below security level */ | |
940 | if (bits < minbits) | |
941 | return 0; | |
942 | /* No unauthenticated ciphersuites */ | |
943 | if (c->algorithm_auth & SSL_aNULL) | |
944 | return 0; | |
945 | /* No MD5 mac ciphersuites */ | |
946 | if (c->algorithm_mac & SSL_MD5) | |
947 | return 0; | |
948 | /* SHA1 HMAC is 160 bits of security */ | |
949 | if (minbits > 160 && c->algorithm_mac & SSL_SHA1) | |
950 | return 0; | |
951 | /* Level 2: no RC4 */ | |
952 | if (level >= 2 && c->algorithm_enc == SSL_RC4) | |
953 | return 0; | |
954 | /* Level 3: forward secure ciphersuites only */ | |
75b68c9e TM |
955 | if (level >= 3 && c->min_tls != TLS1_3_VERSION && |
956 | !(c->algorithm_mkey & (SSL_kEDH | SSL_kEECDH))) | |
0f113f3e MC |
957 | return 0; |
958 | break; | |
959 | } | |
960 | case SSL_SECOP_VERSION: | |
4fa52141 VD |
961 | if (!SSL_IS_DTLS(s)) { |
962 | /* SSLv3 not allowed at level 2 */ | |
963 | if (nid <= SSL3_VERSION && level >= 2) | |
964 | return 0; | |
965 | /* TLS v1.1 and above only for level 3 */ | |
966 | if (nid <= TLS1_VERSION && level >= 3) | |
967 | return 0; | |
968 | /* TLS v1.2 only for level 4 and above */ | |
969 | if (nid <= TLS1_1_VERSION && level >= 4) | |
970 | return 0; | |
971 | } else { | |
972 | /* DTLS v1.2 only for level 4 and above */ | |
973 | if (DTLS_VERSION_LT(nid, DTLS1_2_VERSION) && level >= 4) | |
974 | return 0; | |
975 | } | |
0f113f3e MC |
976 | break; |
977 | ||
978 | case SSL_SECOP_COMPRESSION: | |
979 | if (level >= 2) | |
980 | return 0; | |
981 | break; | |
982 | case SSL_SECOP_TICKET: | |
983 | if (level >= 3) | |
984 | return 0; | |
985 | break; | |
986 | default: | |
987 | if (bits < minbits) | |
988 | return 0; | |
989 | } | |
990 | return 1; | |
991 | } | |
b362ccab | 992 | |
e4646a89 | 993 | int ssl_security(const SSL *s, int op, int bits, int nid, void *other) |
0f113f3e MC |
994 | { |
995 | return s->cert->sec_cb(s, NULL, op, bits, nid, other, s->cert->sec_ex); | |
996 | } | |
b362ccab | 997 | |
e4646a89 | 998 | int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid, void *other) |
0f113f3e MC |
999 | { |
1000 | return ctx->cert->sec_cb(NULL, ctx, op, bits, nid, other, | |
1001 | ctx->cert->sec_ex); | |
1002 | } | |
c04cd728 | 1003 | |
11d2641f | 1004 | int ssl_cert_lookup_by_nid(int nid, size_t *pidx) |
c04cd728 | 1005 | { |
c04cd728 DSH |
1006 | size_t i; |
1007 | ||
c04cd728 DSH |
1008 | for (i = 0; i < OSSL_NELEM(ssl_cert_info); i++) { |
1009 | if (ssl_cert_info[i].nid == nid) { | |
11d2641f MC |
1010 | *pidx = i; |
1011 | return 1; | |
c04cd728 DSH |
1012 | } |
1013 | } | |
11d2641f MC |
1014 | |
1015 | return 0; | |
1016 | } | |
1017 | ||
1018 | const SSL_CERT_LOOKUP *ssl_cert_lookup_by_pkey(const EVP_PKEY *pk, size_t *pidx) | |
1019 | { | |
1020 | int nid = EVP_PKEY_id(pk); | |
1021 | size_t tmpidx; | |
1022 | ||
1023 | if (nid == NID_undef) | |
1024 | return NULL; | |
1025 | ||
1026 | if (!ssl_cert_lookup_by_nid(nid, &tmpidx)) | |
1027 | return NULL; | |
1028 | ||
1029 | if (pidx != NULL) | |
1030 | *pidx = tmpidx; | |
1031 | ||
1032 | return &ssl_cert_info[tmpidx]; | |
c04cd728 DSH |
1033 | } |
1034 | ||
1035 | const SSL_CERT_LOOKUP *ssl_cert_lookup_by_idx(size_t idx) | |
1036 | { | |
1037 | if (idx >= OSSL_NELEM(ssl_cert_info)) | |
b2555168 | 1038 | return NULL; |
c04cd728 DSH |
1039 | return &ssl_cert_info[idx]; |
1040 | } |