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Commit | Line | Data |
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846e33c7 RS |
1 | /* |
2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. | |
675f605d | 3 | * |
846e33c7 RS |
4 | * Licensed under the OpenSSL license (the "License"). You may not use |
5 | * this file except in compliance with the License. You can obtain a copy | |
6 | * in the file LICENSE in the source distribution or at | |
7 | * https://www.openssl.org/source/license.html | |
ca8e5b9b | 8 | */ |
846e33c7 | 9 | |
ea262260 BM |
10 | /* ==================================================================== |
11 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | |
0f113f3e | 12 | * ECC cipher suite support in OpenSSL originally developed by |
ea262260 BM |
13 | * SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project. |
14 | */ | |
d02b48c6 RE |
15 | |
16 | #include <stdio.h> | |
17f389bb | 17 | |
41d2a336 | 18 | #include "e_os.h" |
17f389bb AP |
19 | #ifndef NO_SYS_TYPES_H |
20 | # include <sys/types.h> | |
21 | #endif | |
22 | ||
68570797 | 23 | #include "internal/o_dir.h" |
7823d792 | 24 | #include <openssl/lhash.h> |
ec577822 BM |
25 | #include <openssl/bio.h> |
26 | #include <openssl/pem.h> | |
bb7cd4e3 | 27 | #include <openssl/x509v3.h> |
3c27208f | 28 | #include <openssl/dh.h> |
d095b68d | 29 | #include <openssl/bn.h> |
5c4328f0 | 30 | #include <openssl/crypto.h> |
d02b48c6 RE |
31 | #include "ssl_locl.h" |
32 | ||
e4646a89 | 33 | static int ssl_security_default_callback(const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
34 | int bits, int nid, void *other, |
35 | void *ex); | |
b362ccab | 36 | |
16203f7b AG |
37 | static CRYPTO_ONCE ssl_x509_store_ctx_once = CRYPTO_ONCE_STATIC_INIT; |
38 | static volatile int ssl_x509_store_ctx_idx = -1; | |
0f113f3e | 39 | |
16203f7b AG |
40 | static void ssl_x509_store_ctx_init(void) |
41 | { | |
42 | ssl_x509_store_ctx_idx = X509_STORE_CTX_get_ex_new_index(0, | |
43 | "SSL for verify callback", | |
0f113f3e | 44 | NULL, NULL, NULL); |
16203f7b | 45 | } |
0f113f3e | 46 | |
16203f7b AG |
47 | int SSL_get_ex_data_X509_STORE_CTX_idx(void) |
48 | { | |
0f113f3e | 49 | |
16203f7b | 50 | CRYPTO_THREAD_run_once(&ssl_x509_store_ctx_once, ssl_x509_store_ctx_init); |
0f113f3e MC |
51 | return ssl_x509_store_ctx_idx; |
52 | } | |
dfeab068 | 53 | |
6b691a5c | 54 | CERT *ssl_cert_new(void) |
0f113f3e | 55 | { |
b51bce94 | 56 | CERT *ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e | 57 | |
0f113f3e MC |
58 | if (ret == NULL) { |
59 | SSLerr(SSL_F_SSL_CERT_NEW, ERR_R_MALLOC_FAILURE); | |
16203f7b | 60 | return NULL; |
0f113f3e | 61 | } |
0f113f3e MC |
62 | |
63 | ret->key = &(ret->pkeys[SSL_PKEY_RSA_ENC]); | |
64 | ret->references = 1; | |
0f113f3e MC |
65 | ret->sec_cb = ssl_security_default_callback; |
66 | ret->sec_level = OPENSSL_TLS_SECURITY_LEVEL; | |
67 | ret->sec_ex = NULL; | |
16203f7b AG |
68 | ret->lock = CRYPTO_THREAD_lock_new(); |
69 | if (ret->lock == NULL) { | |
70 | SSLerr(SSL_F_SSL_CERT_NEW, ERR_R_MALLOC_FAILURE); | |
71 | OPENSSL_free(ret); | |
72 | return NULL; | |
73 | } | |
74 | ||
75 | return ret; | |
0f113f3e | 76 | } |
d02b48c6 | 77 | |
ca8e5b9b | 78 | CERT *ssl_cert_dup(CERT *cert) |
0f113f3e | 79 | { |
b51bce94 | 80 | CERT *ret = OPENSSL_zalloc(sizeof(*ret)); |
0f113f3e MC |
81 | int i; |
82 | ||
0f113f3e MC |
83 | if (ret == NULL) { |
84 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
16203f7b | 85 | return NULL; |
0f113f3e MC |
86 | } |
87 | ||
0e04674e | 88 | ret->references = 1; |
16f8d4eb | 89 | ret->key = &ret->pkeys[cert->key - cert->pkeys]; |
16203f7b | 90 | ret->lock = CRYPTO_THREAD_lock_new(); |
aeb5b955 | 91 | if (ret->lock == NULL) { |
16203f7b AG |
92 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); |
93 | OPENSSL_free(ret); | |
94 | return NULL; | |
95 | } | |
ca8e5b9b | 96 | |
bc36ee62 | 97 | #ifndef OPENSSL_NO_DH |
0f113f3e | 98 | if (cert->dh_tmp != NULL) { |
e2b420fd DSH |
99 | ret->dh_tmp = cert->dh_tmp; |
100 | EVP_PKEY_up_ref(ret->dh_tmp); | |
0f113f3e MC |
101 | } |
102 | ret->dh_tmp_cb = cert->dh_tmp_cb; | |
103 | ret->dh_tmp_auto = cert->dh_tmp_auto; | |
ca8e5b9b BM |
104 | #endif |
105 | ||
0f113f3e MC |
106 | for (i = 0; i < SSL_PKEY_NUM; i++) { |
107 | CERT_PKEY *cpk = cert->pkeys + i; | |
108 | CERT_PKEY *rpk = ret->pkeys + i; | |
109 | if (cpk->x509 != NULL) { | |
110 | rpk->x509 = cpk->x509; | |
05f0fb9f | 111 | X509_up_ref(rpk->x509); |
0f113f3e MC |
112 | } |
113 | ||
114 | if (cpk->privatekey != NULL) { | |
115 | rpk->privatekey = cpk->privatekey; | |
3aeb9348 | 116 | EVP_PKEY_up_ref(cpk->privatekey); |
0f113f3e MC |
117 | } |
118 | ||
119 | if (cpk->chain) { | |
120 | rpk->chain = X509_chain_up_ref(cpk->chain); | |
121 | if (!rpk->chain) { | |
122 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
123 | goto err; | |
124 | } | |
125 | } | |
0f113f3e MC |
126 | if (cert->pkeys[i].serverinfo != NULL) { |
127 | /* Just copy everything. */ | |
128 | ret->pkeys[i].serverinfo = | |
129 | OPENSSL_malloc(cert->pkeys[i].serverinfo_length); | |
130 | if (ret->pkeys[i].serverinfo == NULL) { | |
131 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
132 | goto err; | |
133 | } | |
134 | ret->pkeys[i].serverinfo_length = | |
135 | cert->pkeys[i].serverinfo_length; | |
136 | memcpy(ret->pkeys[i].serverinfo, | |
137 | cert->pkeys[i].serverinfo, | |
138 | cert->pkeys[i].serverinfo_length); | |
139 | } | |
0f113f3e MC |
140 | } |
141 | ||
76106e60 | 142 | /* Configured sigalgs copied across */ |
0f113f3e MC |
143 | if (cert->conf_sigalgs) { |
144 | ret->conf_sigalgs = OPENSSL_malloc(cert->conf_sigalgslen); | |
a71edf3b | 145 | if (ret->conf_sigalgs == NULL) |
0f113f3e MC |
146 | goto err; |
147 | memcpy(ret->conf_sigalgs, cert->conf_sigalgs, cert->conf_sigalgslen); | |
148 | ret->conf_sigalgslen = cert->conf_sigalgslen; | |
149 | } else | |
150 | ret->conf_sigalgs = NULL; | |
151 | ||
152 | if (cert->client_sigalgs) { | |
153 | ret->client_sigalgs = OPENSSL_malloc(cert->client_sigalgslen); | |
a71edf3b | 154 | if (ret->client_sigalgs == NULL) |
0f113f3e MC |
155 | goto err; |
156 | memcpy(ret->client_sigalgs, cert->client_sigalgs, | |
157 | cert->client_sigalgslen); | |
158 | ret->client_sigalgslen = cert->client_sigalgslen; | |
159 | } else | |
160 | ret->client_sigalgs = NULL; | |
161 | /* Shared sigalgs also NULL */ | |
162 | ret->shared_sigalgs = NULL; | |
163 | /* Copy any custom client certificate types */ | |
164 | if (cert->ctypes) { | |
165 | ret->ctypes = OPENSSL_malloc(cert->ctype_num); | |
a71edf3b | 166 | if (ret->ctypes == NULL) |
0f113f3e MC |
167 | goto err; |
168 | memcpy(ret->ctypes, cert->ctypes, cert->ctype_num); | |
169 | ret->ctype_num = cert->ctype_num; | |
170 | } | |
171 | ||
172 | ret->cert_flags = cert->cert_flags; | |
173 | ||
174 | ret->cert_cb = cert->cert_cb; | |
175 | ret->cert_cb_arg = cert->cert_cb_arg; | |
176 | ||
177 | if (cert->verify_store) { | |
c001ce33 | 178 | X509_STORE_up_ref(cert->verify_store); |
0f113f3e MC |
179 | ret->verify_store = cert->verify_store; |
180 | } | |
181 | ||
182 | if (cert->chain_store) { | |
c001ce33 | 183 | X509_STORE_up_ref(cert->chain_store); |
0f113f3e MC |
184 | ret->chain_store = cert->chain_store; |
185 | } | |
186 | ||
0f113f3e MC |
187 | ret->sec_cb = cert->sec_cb; |
188 | ret->sec_level = cert->sec_level; | |
189 | ret->sec_ex = cert->sec_ex; | |
b362ccab | 190 | |
0f113f3e MC |
191 | if (!custom_exts_copy(&ret->cli_ext, &cert->cli_ext)) |
192 | goto err; | |
193 | if (!custom_exts_copy(&ret->srv_ext, &cert->srv_ext)) | |
194 | goto err; | |
9076bd25 | 195 | #ifndef OPENSSL_NO_PSK |
df6da24b | 196 | if (cert->psk_identity_hint) { |
7644a9ae | 197 | ret->psk_identity_hint = OPENSSL_strdup(cert->psk_identity_hint); |
df6da24b DSH |
198 | if (ret->psk_identity_hint == NULL) |
199 | goto err; | |
200 | } | |
9076bd25 | 201 | #endif |
16203f7b | 202 | return ret; |
0f113f3e MC |
203 | |
204 | err: | |
205 | ssl_cert_free(ret); | |
9ade64de | 206 | |
0f113f3e MC |
207 | return NULL; |
208 | } | |
ca8e5b9b | 209 | |
a5ee80b9 DSH |
210 | /* Free up and clear all certificates and chains */ |
211 | ||
212 | void ssl_cert_clear_certs(CERT *c) | |
0f113f3e MC |
213 | { |
214 | int i; | |
215 | if (c == NULL) | |
216 | return; | |
217 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
218 | CERT_PKEY *cpk = c->pkeys + i; | |
222561fe RS |
219 | X509_free(cpk->x509); |
220 | cpk->x509 = NULL; | |
c5ba2d99 RS |
221 | EVP_PKEY_free(cpk->privatekey); |
222 | cpk->privatekey = NULL; | |
222561fe RS |
223 | sk_X509_pop_free(cpk->chain, X509_free); |
224 | cpk->chain = NULL; | |
25aaa98a RS |
225 | OPENSSL_free(cpk->serverinfo); |
226 | cpk->serverinfo = NULL; | |
227 | cpk->serverinfo_length = 0; | |
0f113f3e MC |
228 | } |
229 | } | |
ca8e5b9b | 230 | |
eb90a483 | 231 | void ssl_cert_free(CERT *c) |
0f113f3e MC |
232 | { |
233 | int i; | |
d02b48c6 | 234 | |
0f113f3e MC |
235 | if (c == NULL) |
236 | return; | |
e03ddfae | 237 | |
16203f7b | 238 | CRYPTO_atomic_add(&c->references, -1, &i, c->lock); |
f3f1cf84 | 239 | REF_PRINT_COUNT("CERT", c); |
0f113f3e MC |
240 | if (i > 0) |
241 | return; | |
f3f1cf84 | 242 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 243 | |
bc36ee62 | 244 | #ifndef OPENSSL_NO_DH |
e2b420fd | 245 | EVP_PKEY_free(c->dh_tmp); |
d02b48c6 RE |
246 | #endif |
247 | ||
0f113f3e | 248 | ssl_cert_clear_certs(c); |
25aaa98a RS |
249 | OPENSSL_free(c->conf_sigalgs); |
250 | OPENSSL_free(c->client_sigalgs); | |
251 | OPENSSL_free(c->shared_sigalgs); | |
252 | OPENSSL_free(c->ctypes); | |
222561fe RS |
253 | X509_STORE_free(c->verify_store); |
254 | X509_STORE_free(c->chain_store); | |
0f113f3e MC |
255 | custom_exts_free(&c->cli_ext); |
256 | custom_exts_free(&c->srv_ext); | |
df6da24b DSH |
257 | #ifndef OPENSSL_NO_PSK |
258 | OPENSSL_free(c->psk_identity_hint); | |
259 | #endif | |
16203f7b | 260 | CRYPTO_THREAD_lock_free(c->lock); |
0f113f3e MC |
261 | OPENSSL_free(c); |
262 | } | |
d02b48c6 | 263 | |
b362ccab | 264 | int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) |
0f113f3e MC |
265 | { |
266 | int i, r; | |
267 | CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; | |
268 | if (!cpk) | |
269 | return 0; | |
222561fe | 270 | sk_X509_pop_free(cpk->chain, X509_free); |
0f113f3e MC |
271 | for (i = 0; i < sk_X509_num(chain); i++) { |
272 | r = ssl_security_cert(s, ctx, sk_X509_value(chain, i), 0, 0); | |
273 | if (r != 1) { | |
274 | SSLerr(SSL_F_SSL_CERT_SET0_CHAIN, r); | |
275 | return 0; | |
276 | } | |
277 | } | |
278 | cpk->chain = chain; | |
279 | return 1; | |
280 | } | |
f71c6e52 | 281 | |
b362ccab | 282 | int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) |
0f113f3e MC |
283 | { |
284 | STACK_OF(X509) *dchain; | |
285 | if (!chain) | |
286 | return ssl_cert_set0_chain(s, ctx, NULL); | |
287 | dchain = X509_chain_up_ref(chain); | |
288 | if (!dchain) | |
289 | return 0; | |
290 | if (!ssl_cert_set0_chain(s, ctx, dchain)) { | |
291 | sk_X509_pop_free(dchain, X509_free); | |
292 | return 0; | |
293 | } | |
294 | return 1; | |
295 | } | |
f71c6e52 | 296 | |
b362ccab | 297 | int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) |
0f113f3e MC |
298 | { |
299 | int r; | |
300 | CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; | |
301 | if (!cpk) | |
302 | return 0; | |
303 | r = ssl_security_cert(s, ctx, x, 0, 0); | |
304 | if (r != 1) { | |
305 | SSLerr(SSL_F_SSL_CERT_ADD0_CHAIN_CERT, r); | |
306 | return 0; | |
307 | } | |
308 | if (!cpk->chain) | |
309 | cpk->chain = sk_X509_new_null(); | |
310 | if (!cpk->chain || !sk_X509_push(cpk->chain, x)) | |
311 | return 0; | |
312 | return 1; | |
313 | } | |
f71c6e52 | 314 | |
b362ccab | 315 | int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) |
0f113f3e MC |
316 | { |
317 | if (!ssl_cert_add0_chain_cert(s, ctx, x)) | |
318 | return 0; | |
05f0fb9f | 319 | X509_up_ref(x); |
0f113f3e MC |
320 | return 1; |
321 | } | |
7b6b246f RS |
322 | |
323 | int ssl_cert_select_current(CERT *c, X509 *x) | |
0f113f3e MC |
324 | { |
325 | int i; | |
326 | if (x == NULL) | |
327 | return 0; | |
328 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
329 | CERT_PKEY *cpk = c->pkeys + i; | |
330 | if (cpk->x509 == x && cpk->privatekey) { | |
331 | c->key = cpk; | |
332 | return 1; | |
333 | } | |
334 | } | |
335 | ||
336 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
337 | CERT_PKEY *cpk = c->pkeys + i; | |
338 | if (cpk->privatekey && cpk->x509 && !X509_cmp(cpk->x509, x)) { | |
339 | c->key = cpk; | |
340 | return 1; | |
341 | } | |
342 | } | |
343 | return 0; | |
344 | } | |
0f78819c DSH |
345 | |
346 | int ssl_cert_set_current(CERT *c, long op) | |
0f113f3e MC |
347 | { |
348 | int i, idx; | |
349 | if (!c) | |
350 | return 0; | |
351 | if (op == SSL_CERT_SET_FIRST) | |
352 | idx = 0; | |
353 | else if (op == SSL_CERT_SET_NEXT) { | |
354 | idx = (int)(c->key - c->pkeys + 1); | |
355 | if (idx >= SSL_PKEY_NUM) | |
356 | return 0; | |
357 | } else | |
358 | return 0; | |
359 | for (i = idx; i < SSL_PKEY_NUM; i++) { | |
360 | CERT_PKEY *cpk = c->pkeys + i; | |
361 | if (cpk->x509 && cpk->privatekey) { | |
362 | c->key = cpk; | |
363 | return 1; | |
364 | } | |
365 | } | |
366 | return 0; | |
367 | } | |
368 | ||
369 | void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg) | |
370 | { | |
371 | c->cert_cb = cb; | |
372 | c->cert_cb_arg = arg; | |
373 | } | |
18d71588 | 374 | |
0f113f3e MC |
375 | int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk) |
376 | { | |
377 | X509 *x; | |
f0e0fd51 | 378 | int i = 0; |
0f113f3e | 379 | X509_STORE *verify_store; |
f0e0fd51 | 380 | X509_STORE_CTX *ctx = NULL; |
919ba009 | 381 | X509_VERIFY_PARAM *param; |
0f113f3e | 382 | |
f0e0fd51 RS |
383 | if ((sk == NULL) || (sk_X509_num(sk) == 0)) |
384 | return 0; | |
385 | ||
0f113f3e MC |
386 | if (s->cert->verify_store) |
387 | verify_store = s->cert->verify_store; | |
388 | else | |
389 | verify_store = s->ctx->cert_store; | |
390 | ||
f0e0fd51 RS |
391 | ctx = X509_STORE_CTX_new(); |
392 | if (ctx == NULL) { | |
393 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
394 | return 0; | |
395 | } | |
0f113f3e MC |
396 | |
397 | x = sk_X509_value(sk, 0); | |
f0e0fd51 | 398 | if (!X509_STORE_CTX_init(ctx, verify_store, x, sk)) { |
0f113f3e | 399 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_X509_LIB); |
f0e0fd51 | 400 | goto end; |
0f113f3e | 401 | } |
f0e0fd51 | 402 | param = X509_STORE_CTX_get0_param(ctx); |
fbb82a60 VD |
403 | /* |
404 | * XXX: Separate @AUTHSECLEVEL and @TLSSECLEVEL would be useful at some | |
405 | * point, for now a single @SECLEVEL sets the same policy for TLS crypto | |
406 | * and PKI authentication. | |
407 | */ | |
408 | X509_VERIFY_PARAM_set_auth_level(param, SSL_get_security_level(s)); | |
919ba009 | 409 | |
0f113f3e | 410 | /* Set suite B flags if needed */ |
f0e0fd51 RS |
411 | X509_STORE_CTX_set_flags(ctx, tls1_suiteb(s)); |
412 | X509_STORE_CTX_set_ex_data(ctx, SSL_get_ex_data_X509_STORE_CTX_idx(), s); | |
0f113f3e | 413 | |
919ba009 VD |
414 | /* Verify via DANE if enabled */ |
415 | if (DANETLS_ENABLED(&s->dane)) | |
f0e0fd51 | 416 | X509_STORE_CTX_set0_dane(ctx, &s->dane); |
919ba009 | 417 | |
0f113f3e MC |
418 | /* |
419 | * We need to inherit the verify parameters. These can be determined by | |
420 | * the context: if its a server it will verify SSL client certificates or | |
421 | * vice versa. | |
422 | */ | |
423 | ||
f0e0fd51 | 424 | X509_STORE_CTX_set_default(ctx, s->server ? "ssl_client" : "ssl_server"); |
0f113f3e | 425 | /* |
919ba009 | 426 | * Anything non-default in "s->param" should overwrite anything in the ctx. |
0f113f3e | 427 | */ |
919ba009 | 428 | X509_VERIFY_PARAM_set1(param, s->param); |
0f113f3e MC |
429 | |
430 | if (s->verify_callback) | |
f0e0fd51 | 431 | X509_STORE_CTX_set_verify_cb(ctx, s->verify_callback); |
0f113f3e MC |
432 | |
433 | if (s->ctx->app_verify_callback != NULL) | |
f0e0fd51 | 434 | i = s->ctx->app_verify_callback(ctx, s->ctx->app_verify_arg); |
fbb82a60 | 435 | else |
f0e0fd51 | 436 | i = X509_verify_cert(ctx); |
d02b48c6 | 437 | |
f0e0fd51 | 438 | s->verify_result = X509_STORE_CTX_get_error(ctx); |
696178ed DSH |
439 | sk_X509_pop_free(s->verified_chain, X509_free); |
440 | s->verified_chain = NULL; | |
f0e0fd51 RS |
441 | if (X509_STORE_CTX_get0_chain(ctx) != NULL) { |
442 | s->verified_chain = X509_STORE_CTX_get1_chain(ctx); | |
696178ed DSH |
443 | if (s->verified_chain == NULL) { |
444 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
445 | i = 0; | |
446 | } | |
447 | } | |
919ba009 VD |
448 | |
449 | /* Move peername from the store context params to the SSL handle's */ | |
450 | X509_VERIFY_PARAM_move_peername(s->param, param); | |
451 | ||
f0e0fd51 RS |
452 | end: |
453 | X509_STORE_CTX_free(ctx); | |
454 | return i; | |
0f113f3e | 455 | } |
d02b48c6 | 456 | |
0f113f3e MC |
457 | static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list, |
458 | STACK_OF(X509_NAME) *name_list) | |
459 | { | |
222561fe | 460 | sk_X509_NAME_pop_free(*ca_list, X509_NAME_free); |
0f113f3e MC |
461 | *ca_list = name_list; |
462 | } | |
d02b48c6 | 463 | |
838d25a1 | 464 | STACK_OF(X509_NAME) *SSL_dup_CA_list(STACK_OF(X509_NAME) *sk) |
0f113f3e MC |
465 | { |
466 | int i; | |
467 | STACK_OF(X509_NAME) *ret; | |
468 | X509_NAME *name; | |
469 | ||
470 | ret = sk_X509_NAME_new_null(); | |
471 | for (i = 0; i < sk_X509_NAME_num(sk); i++) { | |
472 | name = X509_NAME_dup(sk_X509_NAME_value(sk, i)); | |
473 | if ((name == NULL) || !sk_X509_NAME_push(ret, name)) { | |
474 | sk_X509_NAME_pop_free(ret, X509_NAME_free); | |
475 | return (NULL); | |
476 | } | |
477 | } | |
478 | return (ret); | |
479 | } | |
480 | ||
481 | void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list) | |
482 | { | |
483 | set_client_CA_list(&(s->client_CA), name_list); | |
484 | } | |
485 | ||
486 | void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list) | |
487 | { | |
488 | set_client_CA_list(&(ctx->client_CA), name_list); | |
489 | } | |
d02b48c6 | 490 | |
0821bcd4 | 491 | STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) |
0f113f3e MC |
492 | { |
493 | return (ctx->client_CA); | |
494 | } | |
d02b48c6 | 495 | |
0821bcd4 | 496 | STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s) |
0f113f3e | 497 | { |
23a635c0 | 498 | if (!s->server) { /* we are in the client */ |
0f113f3e MC |
499 | if (((s->version >> 8) == SSL3_VERSION_MAJOR) && (s->s3 != NULL)) |
500 | return (s->s3->tmp.ca_names); | |
501 | else | |
502 | return (NULL); | |
503 | } else { | |
504 | if (s->client_CA != NULL) | |
505 | return (s->client_CA); | |
506 | else | |
507 | return (s->ctx->client_CA); | |
508 | } | |
509 | } | |
510 | ||
511 | static int add_client_CA(STACK_OF(X509_NAME) **sk, X509 *x) | |
512 | { | |
513 | X509_NAME *name; | |
514 | ||
515 | if (x == NULL) | |
516 | return (0); | |
517 | if ((*sk == NULL) && ((*sk = sk_X509_NAME_new_null()) == NULL)) | |
518 | return (0); | |
519 | ||
520 | if ((name = X509_NAME_dup(X509_get_subject_name(x))) == NULL) | |
521 | return (0); | |
522 | ||
523 | if (!sk_X509_NAME_push(*sk, name)) { | |
524 | X509_NAME_free(name); | |
525 | return (0); | |
526 | } | |
527 | return (1); | |
528 | } | |
529 | ||
530 | int SSL_add_client_CA(SSL *ssl, X509 *x) | |
531 | { | |
532 | return (add_client_CA(&(ssl->client_CA), x)); | |
533 | } | |
534 | ||
535 | int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x) | |
536 | { | |
537 | return (add_client_CA(&(ctx->client_CA), x)); | |
538 | } | |
539 | ||
7823d792 | 540 | static int xname_sk_cmp(const X509_NAME *const *a, const X509_NAME *const *b) |
0f113f3e MC |
541 | { |
542 | return (X509_NAME_cmp(*a, *b)); | |
543 | } | |
d02b48c6 | 544 | |
7823d792 TF |
545 | static int xname_cmp(const X509_NAME *a, const X509_NAME *b) |
546 | { | |
547 | return X509_NAME_cmp(a, b); | |
548 | } | |
549 | ||
550 | static unsigned long xname_hash(const X509_NAME *a) | |
551 | { | |
552 | return X509_NAME_hash((X509_NAME *)a); | |
553 | } | |
554 | ||
0f113f3e | 555 | /** |
eb90a483 BL |
556 | * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed; |
557 | * it doesn't really have anything to do with clients (except that a common use | |
558 | * for a stack of CAs is to send it to the client). Actually, it doesn't have | |
559 | * much to do with CAs, either, since it will load any old cert. | |
560 | * \param file the file containing one or more certs. | |
561 | * \return a ::STACK containing the certs. | |
562 | */ | |
f73e07cf | 563 | STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) |
0f113f3e | 564 | { |
7823d792 | 565 | BIO *in = BIO_new(BIO_s_file()); |
0f113f3e MC |
566 | X509 *x = NULL; |
567 | X509_NAME *xn = NULL; | |
7823d792 TF |
568 | STACK_OF(X509_NAME) *ret = NULL; |
569 | LHASH_OF(X509_NAME) *name_hash = | |
570 | lh_X509_NAME_new(xname_hash, xname_cmp); | |
0f113f3e | 571 | |
7823d792 | 572 | if ((name_hash == NULL) || (in == NULL)) { |
0f113f3e MC |
573 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); |
574 | goto err; | |
575 | } | |
576 | ||
577 | if (!BIO_read_filename(in, file)) | |
578 | goto err; | |
579 | ||
580 | for (;;) { | |
581 | if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) | |
582 | break; | |
583 | if (ret == NULL) { | |
584 | ret = sk_X509_NAME_new_null(); | |
585 | if (ret == NULL) { | |
586 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); | |
587 | goto err; | |
588 | } | |
589 | } | |
590 | if ((xn = X509_get_subject_name(x)) == NULL) | |
591 | goto err; | |
592 | /* check for duplicates */ | |
593 | xn = X509_NAME_dup(xn); | |
594 | if (xn == NULL) | |
595 | goto err; | |
7823d792 TF |
596 | if (lh_X509_NAME_retrieve(name_hash, xn) != NULL) { |
597 | /* Duplicate. */ | |
0f113f3e | 598 | X509_NAME_free(xn); |
7823d792 TF |
599 | } else { |
600 | lh_X509_NAME_insert(name_hash, xn); | |
0f113f3e MC |
601 | sk_X509_NAME_push(ret, xn); |
602 | } | |
603 | } | |
66696478 | 604 | goto done; |
0f113f3e | 605 | |
0f113f3e | 606 | err: |
66696478 RS |
607 | sk_X509_NAME_pop_free(ret, X509_NAME_free); |
608 | ret = NULL; | |
609 | done: | |
ca3a82c3 | 610 | BIO_free(in); |
222561fe | 611 | X509_free(x); |
7823d792 | 612 | lh_X509_NAME_free(name_hash); |
0f113f3e MC |
613 | if (ret != NULL) |
614 | ERR_clear_error(); | |
615 | return (ret); | |
616 | } | |
d02b48c6 | 617 | |
0f113f3e | 618 | /** |
eb90a483 BL |
619 | * Add a file of certs to a stack. |
620 | * \param stack the stack to add to. | |
621 | * \param file the file to add from. All certs in this file that are not | |
622 | * already in the stack will be added. | |
623 | * \return 1 for success, 0 for failure. Note that in the case of failure some | |
624 | * certs may have been added to \c stack. | |
625 | */ | |
626 | ||
661b361b | 627 | int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
0f113f3e MC |
628 | const char *file) |
629 | { | |
630 | BIO *in; | |
631 | X509 *x = NULL; | |
632 | X509_NAME *xn = NULL; | |
633 | int ret = 1; | |
634 | int (*oldcmp) (const X509_NAME *const *a, const X509_NAME *const *b); | |
635 | ||
7823d792 | 636 | oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_sk_cmp); |
0f113f3e | 637 | |
9982cbbb | 638 | in = BIO_new(BIO_s_file()); |
0f113f3e MC |
639 | |
640 | if (in == NULL) { | |
641 | SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK, | |
642 | ERR_R_MALLOC_FAILURE); | |
643 | goto err; | |
644 | } | |
645 | ||
646 | if (!BIO_read_filename(in, file)) | |
647 | goto err; | |
648 | ||
649 | for (;;) { | |
650 | if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) | |
651 | break; | |
652 | if ((xn = X509_get_subject_name(x)) == NULL) | |
653 | goto err; | |
654 | xn = X509_NAME_dup(xn); | |
655 | if (xn == NULL) | |
656 | goto err; | |
657 | if (sk_X509_NAME_find(stack, xn) >= 0) | |
658 | X509_NAME_free(xn); | |
659 | else | |
660 | sk_X509_NAME_push(stack, xn); | |
661 | } | |
662 | ||
663 | ERR_clear_error(); | |
66696478 | 664 | goto done; |
0f113f3e | 665 | |
0f113f3e MC |
666 | err: |
667 | ret = 0; | |
66696478 | 668 | done: |
ca3a82c3 | 669 | BIO_free(in); |
25aaa98a | 670 | X509_free(x); |
0f113f3e | 671 | (void)sk_X509_NAME_set_cmp_func(stack, oldcmp); |
0f113f3e MC |
672 | return ret; |
673 | } | |
674 | ||
675 | /** | |
eb90a483 BL |
676 | * Add a directory of certs to a stack. |
677 | * \param stack the stack to append to. | |
678 | * \param dir the directory to append from. All files in this directory will be | |
679 | * examined as potential certs. Any that are acceptable to | |
72e442a3 | 680 | * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be |
eb90a483 BL |
681 | * included. |
682 | * \return 1 for success, 0 for failure. Note that in the case of failure some | |
683 | * certs may have been added to \c stack. | |
684 | */ | |
685 | ||
661b361b | 686 | int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
0f113f3e MC |
687 | const char *dir) |
688 | { | |
689 | OPENSSL_DIR_CTX *d = NULL; | |
690 | const char *filename; | |
691 | int ret = 0; | |
eb90a483 | 692 | |
0f113f3e | 693 | /* Note that a side effect is that the CAs will be sorted by name */ |
4083a229 | 694 | |
0f113f3e MC |
695 | while ((filename = OPENSSL_DIR_read(&d, dir))) { |
696 | char buf[1024]; | |
697 | int r; | |
4083a229 | 698 | |
0f113f3e MC |
699 | if (strlen(dir) + strlen(filename) + 2 > sizeof buf) { |
700 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, | |
701 | SSL_R_PATH_TOO_LONG); | |
702 | goto err; | |
703 | } | |
4083a229 | 704 | #ifdef OPENSSL_SYS_VMS |
0f113f3e | 705 | r = BIO_snprintf(buf, sizeof buf, "%s%s", dir, filename); |
4083a229 | 706 | #else |
0f113f3e | 707 | r = BIO_snprintf(buf, sizeof buf, "%s/%s", dir, filename); |
4083a229 | 708 | #endif |
0f113f3e MC |
709 | if (r <= 0 || r >= (int)sizeof(buf)) |
710 | goto err; | |
711 | if (!SSL_add_file_cert_subjects_to_stack(stack, buf)) | |
712 | goto err; | |
713 | } | |
714 | ||
715 | if (errno) { | |
716 | SYSerr(SYS_F_OPENDIR, get_last_sys_error()); | |
717 | ERR_add_error_data(3, "OPENSSL_DIR_read(&ctx, '", dir, "')"); | |
718 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB); | |
719 | goto err; | |
720 | } | |
721 | ||
722 | ret = 1; | |
723 | ||
724 | err: | |
725 | if (d) | |
726 | OPENSSL_DIR_end(&d); | |
16203f7b | 727 | |
0f113f3e MC |
728 | return ret; |
729 | } | |
285046ec | 730 | |
4379d0e4 DSH |
731 | /* Add a certificate to a BUF_MEM structure */ |
732 | ||
733 | static int ssl_add_cert_to_buf(BUF_MEM *buf, unsigned long *l, X509 *x) | |
0f113f3e MC |
734 | { |
735 | int n; | |
736 | unsigned char *p; | |
737 | ||
738 | n = i2d_X509(x, NULL); | |
446ba8de | 739 | if (n < 0 || !BUF_MEM_grow_clean(buf, (int)(n + (*l) + 3))) { |
0f113f3e MC |
740 | SSLerr(SSL_F_SSL_ADD_CERT_TO_BUF, ERR_R_BUF_LIB); |
741 | return 0; | |
742 | } | |
743 | p = (unsigned char *)&(buf->data[*l]); | |
744 | l2n3(n, p); | |
446ba8de MC |
745 | n = i2d_X509(x, &p); |
746 | if (n < 0) { | |
747 | /* Shouldn't happen */ | |
748 | SSLerr(SSL_F_SSL_ADD_CERT_TO_BUF, ERR_R_BUF_LIB); | |
749 | return 0; | |
750 | } | |
0f113f3e MC |
751 | *l += n + 3; |
752 | ||
753 | return 1; | |
754 | } | |
4379d0e4 | 755 | |
8483a003 | 756 | /* Add certificate chain to internal SSL BUF_MEM structure */ |
c526ed41 | 757 | int ssl_add_cert_chain(SSL *s, CERT_PKEY *cpk, unsigned long *l) |
0f113f3e MC |
758 | { |
759 | BUF_MEM *buf = s->init_buf; | |
f0e0fd51 | 760 | int i, chain_count; |
0f113f3e MC |
761 | X509 *x; |
762 | STACK_OF(X509) *extra_certs; | |
f0e0fd51 | 763 | STACK_OF(X509) *chain = NULL; |
0f113f3e MC |
764 | X509_STORE *chain_store; |
765 | ||
766 | /* TLSv1 sends a chain with nothing in it, instead of an alert */ | |
767 | if (!BUF_MEM_grow_clean(buf, 10)) { | |
768 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, ERR_R_BUF_LIB); | |
769 | return 0; | |
770 | } | |
771 | ||
772 | if (!cpk || !cpk->x509) | |
773 | return 1; | |
774 | ||
775 | x = cpk->x509; | |
776 | ||
777 | /* | |
778 | * If we have a certificate specific chain use it, else use parent ctx. | |
779 | */ | |
780 | if (cpk->chain) | |
781 | extra_certs = cpk->chain; | |
782 | else | |
783 | extra_certs = s->ctx->extra_certs; | |
784 | ||
785 | if ((s->mode & SSL_MODE_NO_AUTO_CHAIN) || extra_certs) | |
786 | chain_store = NULL; | |
787 | else if (s->cert->chain_store) | |
788 | chain_store = s->cert->chain_store; | |
789 | else | |
790 | chain_store = s->ctx->cert_store; | |
791 | ||
792 | if (chain_store) { | |
f0e0fd51 | 793 | X509_STORE_CTX* xs_ctx = X509_STORE_CTX_new(); |
0f113f3e | 794 | |
f0e0fd51 RS |
795 | if (xs_ctx == NULL) { |
796 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
797 | return (0); | |
798 | } | |
799 | if (!X509_STORE_CTX_init(xs_ctx, chain_store, x, NULL)) { | |
800 | X509_STORE_CTX_free(xs_ctx); | |
0f113f3e MC |
801 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, ERR_R_X509_LIB); |
802 | return (0); | |
803 | } | |
ae4d0c8d MC |
804 | /* |
805 | * It is valid for the chain not to be complete (because normally we | |
806 | * don't include the root cert in the chain). Therefore we deliberately | |
807 | * ignore the error return from this call. We're not actually verifying | |
808 | * the cert - we're just building as much of the chain as we can | |
809 | */ | |
f0e0fd51 | 810 | (void) X509_verify_cert(xs_ctx); |
0f113f3e MC |
811 | /* Don't leave errors in the queue */ |
812 | ERR_clear_error(); | |
f0e0fd51 RS |
813 | chain = X509_STORE_CTX_get0_chain(xs_ctx); |
814 | i = ssl_security_cert_chain(s, chain, NULL, 0); | |
0f113f3e | 815 | if (i != 1) { |
fbb82a60 VD |
816 | #if 0 |
817 | /* Dummy error calls so mkerr generates them */ | |
818 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, SSL_R_EE_KEY_TOO_SMALL); | |
819 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, SSL_R_CA_KEY_TOO_SMALL); | |
820 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, SSL_R_CA_MD_TOO_WEAK); | |
821 | #endif | |
f0e0fd51 | 822 | X509_STORE_CTX_free(xs_ctx); |
0f113f3e MC |
823 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, i); |
824 | return 0; | |
825 | } | |
f0e0fd51 RS |
826 | chain_count = sk_X509_num(chain); |
827 | for (i = 0; i < chain_count; i++) { | |
828 | x = sk_X509_value(chain, i); | |
0f113f3e MC |
829 | |
830 | if (!ssl_add_cert_to_buf(buf, l, x)) { | |
f0e0fd51 | 831 | X509_STORE_CTX_free(xs_ctx); |
0f113f3e MC |
832 | return 0; |
833 | } | |
834 | } | |
f0e0fd51 | 835 | X509_STORE_CTX_free(xs_ctx); |
0f113f3e MC |
836 | } else { |
837 | i = ssl_security_cert_chain(s, extra_certs, x, 0); | |
838 | if (i != 1) { | |
839 | SSLerr(SSL_F_SSL_ADD_CERT_CHAIN, i); | |
840 | return 0; | |
841 | } | |
842 | if (!ssl_add_cert_to_buf(buf, l, x)) | |
843 | return 0; | |
844 | for (i = 0; i < sk_X509_num(extra_certs); i++) { | |
845 | x = sk_X509_value(extra_certs, i); | |
846 | if (!ssl_add_cert_to_buf(buf, l, x)) | |
847 | return 0; | |
848 | } | |
849 | } | |
850 | return 1; | |
851 | } | |
4379d0e4 | 852 | |
74ecfab4 | 853 | /* Build a certificate chain for current certificate */ |
b362ccab | 854 | int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags) |
0f113f3e MC |
855 | { |
856 | CERT *c = s ? s->cert : ctx->cert; | |
857 | CERT_PKEY *cpk = c->key; | |
858 | X509_STORE *chain_store = NULL; | |
f0e0fd51 | 859 | X509_STORE_CTX *xs_ctx = NULL; |
0f113f3e MC |
860 | STACK_OF(X509) *chain = NULL, *untrusted = NULL; |
861 | X509 *x; | |
862 | int i, rv = 0; | |
863 | unsigned long error; | |
864 | ||
865 | if (!cpk->x509) { | |
866 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_NO_CERTIFICATE_SET); | |
867 | goto err; | |
868 | } | |
869 | /* Rearranging and check the chain: add everything to a store */ | |
870 | if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) { | |
871 | chain_store = X509_STORE_new(); | |
a71edf3b | 872 | if (chain_store == NULL) |
0f113f3e MC |
873 | goto err; |
874 | for (i = 0; i < sk_X509_num(cpk->chain); i++) { | |
875 | x = sk_X509_value(cpk->chain, i); | |
876 | if (!X509_STORE_add_cert(chain_store, x)) { | |
877 | error = ERR_peek_last_error(); | |
878 | if (ERR_GET_LIB(error) != ERR_LIB_X509 || | |
879 | ERR_GET_REASON(error) != | |
880 | X509_R_CERT_ALREADY_IN_HASH_TABLE) | |
881 | goto err; | |
882 | ERR_clear_error(); | |
883 | } | |
884 | } | |
885 | /* Add EE cert too: it might be self signed */ | |
886 | if (!X509_STORE_add_cert(chain_store, cpk->x509)) { | |
887 | error = ERR_peek_last_error(); | |
888 | if (ERR_GET_LIB(error) != ERR_LIB_X509 || | |
889 | ERR_GET_REASON(error) != X509_R_CERT_ALREADY_IN_HASH_TABLE) | |
890 | goto err; | |
891 | ERR_clear_error(); | |
892 | } | |
893 | } else { | |
894 | if (c->chain_store) | |
895 | chain_store = c->chain_store; | |
896 | else if (s) | |
897 | chain_store = s->ctx->cert_store; | |
898 | else | |
899 | chain_store = ctx->cert_store; | |
900 | ||
901 | if (flags & SSL_BUILD_CHAIN_FLAG_UNTRUSTED) | |
902 | untrusted = cpk->chain; | |
903 | } | |
904 | ||
f0e0fd51 RS |
905 | xs_ctx = X509_STORE_CTX_new(); |
906 | if (xs_ctx == NULL) { | |
907 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
908 | goto err; | |
909 | } | |
910 | if (!X509_STORE_CTX_init(xs_ctx, chain_store, cpk->x509, untrusted)) { | |
0f113f3e MC |
911 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, ERR_R_X509_LIB); |
912 | goto err; | |
913 | } | |
914 | /* Set suite B flags if needed */ | |
f0e0fd51 | 915 | X509_STORE_CTX_set_flags(xs_ctx, |
0f113f3e MC |
916 | c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS); |
917 | ||
f0e0fd51 | 918 | i = X509_verify_cert(xs_ctx); |
0f113f3e MC |
919 | if (i <= 0 && flags & SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR) { |
920 | if (flags & SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR) | |
921 | ERR_clear_error(); | |
922 | i = 1; | |
923 | rv = 2; | |
924 | } | |
925 | if (i > 0) | |
f0e0fd51 | 926 | chain = X509_STORE_CTX_get1_chain(xs_ctx); |
0f113f3e MC |
927 | if (i <= 0) { |
928 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_CERTIFICATE_VERIFY_FAILED); | |
f0e0fd51 | 929 | i = X509_STORE_CTX_get_error(xs_ctx); |
0f113f3e MC |
930 | ERR_add_error_data(2, "Verify error:", |
931 | X509_verify_cert_error_string(i)); | |
932 | ||
0f113f3e MC |
933 | goto err; |
934 | } | |
0f113f3e MC |
935 | /* Remove EE certificate from chain */ |
936 | x = sk_X509_shift(chain); | |
937 | X509_free(x); | |
938 | if (flags & SSL_BUILD_CHAIN_FLAG_NO_ROOT) { | |
939 | if (sk_X509_num(chain) > 0) { | |
940 | /* See if last cert is self signed */ | |
941 | x = sk_X509_value(chain, sk_X509_num(chain) - 1); | |
a8d8e06b | 942 | if (X509_get_extension_flags(x) & EXFLAG_SS) { |
0f113f3e MC |
943 | x = sk_X509_pop(chain); |
944 | X509_free(x); | |
945 | } | |
946 | } | |
947 | } | |
948 | /* | |
949 | * Check security level of all CA certificates: EE will have been checked | |
950 | * already. | |
951 | */ | |
952 | for (i = 0; i < sk_X509_num(chain); i++) { | |
953 | x = sk_X509_value(chain, i); | |
954 | rv = ssl_security_cert(s, ctx, x, 0, 0); | |
955 | if (rv != 1) { | |
956 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, rv); | |
957 | sk_X509_pop_free(chain, X509_free); | |
958 | rv = 0; | |
959 | goto err; | |
960 | } | |
961 | } | |
222561fe | 962 | sk_X509_pop_free(cpk->chain, X509_free); |
0f113f3e MC |
963 | cpk->chain = chain; |
964 | if (rv == 0) | |
965 | rv = 1; | |
966 | err: | |
967 | if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) | |
968 | X509_STORE_free(chain_store); | |
f0e0fd51 | 969 | X509_STORE_CTX_free(xs_ctx); |
0f113f3e MC |
970 | |
971 | return rv; | |
972 | } | |
74ecfab4 DSH |
973 | |
974 | int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref) | |
0f113f3e MC |
975 | { |
976 | X509_STORE **pstore; | |
977 | if (chain) | |
978 | pstore = &c->chain_store; | |
979 | else | |
980 | pstore = &c->verify_store; | |
222561fe | 981 | X509_STORE_free(*pstore); |
0f113f3e MC |
982 | *pstore = store; |
983 | if (ref && store) | |
c001ce33 | 984 | X509_STORE_up_ref(store); |
0f113f3e MC |
985 | return 1; |
986 | } | |
987 | ||
e4646a89 | 988 | static int ssl_security_default_callback(const SSL *s, const SSL_CTX *ctx, int op, |
0f113f3e MC |
989 | int bits, int nid, void *other, |
990 | void *ex) | |
991 | { | |
992 | int level, minbits; | |
993 | static const int minbits_table[5] = { 80, 112, 128, 192, 256 }; | |
994 | if (ctx) | |
995 | level = SSL_CTX_get_security_level(ctx); | |
996 | else | |
997 | level = SSL_get_security_level(s); | |
a7cf07b4 VD |
998 | |
999 | if (level <= 0) { | |
1000 | /* | |
1001 | * No EDH keys weaker than 1024-bits even at level 0, otherwise, | |
1002 | * anything goes. | |
1003 | */ | |
1004 | if (op == SSL_SECOP_TMP_DH && bits < 80) | |
1005 | return 0; | |
0f113f3e | 1006 | return 1; |
a7cf07b4 | 1007 | } |
0f113f3e MC |
1008 | if (level > 5) |
1009 | level = 5; | |
1010 | minbits = minbits_table[level - 1]; | |
1011 | switch (op) { | |
1012 | case SSL_SECOP_CIPHER_SUPPORTED: | |
1013 | case SSL_SECOP_CIPHER_SHARED: | |
1014 | case SSL_SECOP_CIPHER_CHECK: | |
1015 | { | |
1016 | const SSL_CIPHER *c = other; | |
1017 | /* No ciphers below security level */ | |
1018 | if (bits < minbits) | |
1019 | return 0; | |
1020 | /* No unauthenticated ciphersuites */ | |
1021 | if (c->algorithm_auth & SSL_aNULL) | |
1022 | return 0; | |
1023 | /* No MD5 mac ciphersuites */ | |
1024 | if (c->algorithm_mac & SSL_MD5) | |
1025 | return 0; | |
1026 | /* SHA1 HMAC is 160 bits of security */ | |
1027 | if (minbits > 160 && c->algorithm_mac & SSL_SHA1) | |
1028 | return 0; | |
1029 | /* Level 2: no RC4 */ | |
1030 | if (level >= 2 && c->algorithm_enc == SSL_RC4) | |
1031 | return 0; | |
1032 | /* Level 3: forward secure ciphersuites only */ | |
1033 | if (level >= 3 && !(c->algorithm_mkey & (SSL_kEDH | SSL_kEECDH))) | |
1034 | return 0; | |
1035 | break; | |
1036 | } | |
1037 | case SSL_SECOP_VERSION: | |
4fa52141 VD |
1038 | if (!SSL_IS_DTLS(s)) { |
1039 | /* SSLv3 not allowed at level 2 */ | |
1040 | if (nid <= SSL3_VERSION && level >= 2) | |
1041 | return 0; | |
1042 | /* TLS v1.1 and above only for level 3 */ | |
1043 | if (nid <= TLS1_VERSION && level >= 3) | |
1044 | return 0; | |
1045 | /* TLS v1.2 only for level 4 and above */ | |
1046 | if (nid <= TLS1_1_VERSION && level >= 4) | |
1047 | return 0; | |
1048 | } else { | |
1049 | /* DTLS v1.2 only for level 4 and above */ | |
1050 | if (DTLS_VERSION_LT(nid, DTLS1_2_VERSION) && level >= 4) | |
1051 | return 0; | |
1052 | } | |
0f113f3e MC |
1053 | break; |
1054 | ||
1055 | case SSL_SECOP_COMPRESSION: | |
1056 | if (level >= 2) | |
1057 | return 0; | |
1058 | break; | |
1059 | case SSL_SECOP_TICKET: | |
1060 | if (level >= 3) | |
1061 | return 0; | |
1062 | break; | |
1063 | default: | |
1064 | if (bits < minbits) | |
1065 | return 0; | |
1066 | } | |
1067 | return 1; | |
1068 | } | |
b362ccab | 1069 | |
e4646a89 | 1070 | int ssl_security(const SSL *s, int op, int bits, int nid, void *other) |
0f113f3e MC |
1071 | { |
1072 | return s->cert->sec_cb(s, NULL, op, bits, nid, other, s->cert->sec_ex); | |
1073 | } | |
b362ccab | 1074 | |
e4646a89 | 1075 | int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid, void *other) |
0f113f3e MC |
1076 | { |
1077 | return ctx->cert->sec_cb(NULL, ctx, op, bits, nid, other, | |
1078 | ctx->cert->sec_ex); | |
1079 | } |