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846e33c7 | 1 | /* |
33388b44 | 2 | * Copyright 1995-2020 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> | |
6dcb100f | 18 | #include <openssl/store.h> |
bb7cd4e3 | 19 | #include <openssl/x509v3.h> |
3c27208f | 20 | #include <openssl/dh.h> |
d095b68d | 21 | #include <openssl/bn.h> |
5c4328f0 | 22 | #include <openssl/crypto.h> |
cd420b0b | 23 | #include "internal/refcount.h" |
706457b7 | 24 | #include "ssl_local.h" |
cd933ebd | 25 | #include "ssl_cert_table.h" |
c2e4e5d2 | 26 | #include "internal/thread_once.h" |
d02b48c6 | 27 | |
852c2ed2 RS |
28 | DEFINE_STACK_OF(X509) |
29 | DEFINE_STACK_OF(X509_NAME) | |
30 | ||
a230b26e EK |
31 | static int ssl_security_default_callback(const SSL *s, const SSL_CTX *ctx, |
32 | int op, int bits, int nid, void *other, | |
0f113f3e | 33 | void *ex); |
b362ccab | 34 | |
16203f7b AG |
35 | static CRYPTO_ONCE ssl_x509_store_ctx_once = CRYPTO_ONCE_STATIC_INIT; |
36 | static volatile int ssl_x509_store_ctx_idx = -1; | |
0f113f3e | 37 | |
c2e4e5d2 | 38 | DEFINE_RUN_ONCE_STATIC(ssl_x509_store_ctx_init) |
16203f7b AG |
39 | { |
40 | ssl_x509_store_ctx_idx = X509_STORE_CTX_get_ex_new_index(0, | |
a230b26e EK |
41 | "SSL for verify callback", |
42 | NULL, NULL, NULL); | |
c2e4e5d2 | 43 | return ssl_x509_store_ctx_idx >= 0; |
16203f7b | 44 | } |
0f113f3e | 45 | |
16203f7b AG |
46 | int SSL_get_ex_data_X509_STORE_CTX_idx(void) |
47 | { | |
0f113f3e | 48 | |
c2e4e5d2 RL |
49 | if (!RUN_ONCE(&ssl_x509_store_ctx_once, ssl_x509_store_ctx_init)) |
50 | return -1; | |
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 | 62 | |
d0ff28f8 | 63 | ret->key = &(ret->pkeys[SSL_PKEY_RSA]); |
0f113f3e | 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 | } | |
bc36ee62 | 96 | #ifndef OPENSSL_NO_DH |
0f113f3e | 97 | if (cert->dh_tmp != NULL) { |
e2b420fd DSH |
98 | ret->dh_tmp = cert->dh_tmp; |
99 | EVP_PKEY_up_ref(ret->dh_tmp); | |
0f113f3e MC |
100 | } |
101 | ret->dh_tmp_cb = cert->dh_tmp_cb; | |
102 | ret->dh_tmp_auto = cert->dh_tmp_auto; | |
ca8e5b9b BM |
103 | #endif |
104 | ||
0f113f3e MC |
105 | for (i = 0; i < SSL_PKEY_NUM; i++) { |
106 | CERT_PKEY *cpk = cert->pkeys + i; | |
107 | CERT_PKEY *rpk = ret->pkeys + i; | |
108 | if (cpk->x509 != NULL) { | |
109 | rpk->x509 = cpk->x509; | |
05f0fb9f | 110 | X509_up_ref(rpk->x509); |
0f113f3e MC |
111 | } |
112 | ||
113 | if (cpk->privatekey != NULL) { | |
114 | rpk->privatekey = cpk->privatekey; | |
3aeb9348 | 115 | EVP_PKEY_up_ref(cpk->privatekey); |
0f113f3e MC |
116 | } |
117 | ||
118 | if (cpk->chain) { | |
119 | rpk->chain = X509_chain_up_ref(cpk->chain); | |
120 | if (!rpk->chain) { | |
121 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
122 | goto err; | |
123 | } | |
124 | } | |
0f113f3e MC |
125 | if (cert->pkeys[i].serverinfo != NULL) { |
126 | /* Just copy everything. */ | |
127 | ret->pkeys[i].serverinfo = | |
128 | OPENSSL_malloc(cert->pkeys[i].serverinfo_length); | |
129 | if (ret->pkeys[i].serverinfo == NULL) { | |
130 | SSLerr(SSL_F_SSL_CERT_DUP, ERR_R_MALLOC_FAILURE); | |
131 | goto err; | |
132 | } | |
a230b26e | 133 | ret->pkeys[i].serverinfo_length = cert->pkeys[i].serverinfo_length; |
0f113f3e | 134 | memcpy(ret->pkeys[i].serverinfo, |
a230b26e | 135 | cert->pkeys[i].serverinfo, cert->pkeys[i].serverinfo_length); |
0f113f3e | 136 | } |
0f113f3e MC |
137 | } |
138 | ||
76106e60 | 139 | /* Configured sigalgs copied across */ |
0f113f3e | 140 | if (cert->conf_sigalgs) { |
703bcee0 MC |
141 | ret->conf_sigalgs = OPENSSL_malloc(cert->conf_sigalgslen |
142 | * sizeof(*cert->conf_sigalgs)); | |
a71edf3b | 143 | if (ret->conf_sigalgs == NULL) |
0f113f3e | 144 | goto err; |
703bcee0 MC |
145 | memcpy(ret->conf_sigalgs, cert->conf_sigalgs, |
146 | cert->conf_sigalgslen * sizeof(*cert->conf_sigalgs)); | |
0f113f3e MC |
147 | ret->conf_sigalgslen = cert->conf_sigalgslen; |
148 | } else | |
149 | ret->conf_sigalgs = NULL; | |
150 | ||
151 | if (cert->client_sigalgs) { | |
703bcee0 MC |
152 | ret->client_sigalgs = OPENSSL_malloc(cert->client_sigalgslen |
153 | * sizeof(*cert->client_sigalgs)); | |
a71edf3b | 154 | if (ret->client_sigalgs == NULL) |
0f113f3e MC |
155 | goto err; |
156 | memcpy(ret->client_sigalgs, cert->client_sigalgs, | |
703bcee0 | 157 | cert->client_sigalgslen * sizeof(*cert->client_sigalgs)); |
0f113f3e MC |
158 | ret->client_sigalgslen = cert->client_sigalgslen; |
159 | } else | |
160 | ret->client_sigalgs = NULL; | |
0f113f3e | 161 | /* Copy any custom client certificate types */ |
75c13e78 DSH |
162 | if (cert->ctype) { |
163 | ret->ctype = OPENSSL_memdup(cert->ctype, cert->ctype_len); | |
164 | if (ret->ctype == NULL) | |
0f113f3e | 165 | goto err; |
75c13e78 | 166 | ret->ctype_len = cert->ctype_len; |
0f113f3e MC |
167 | } |
168 | ||
169 | ret->cert_flags = cert->cert_flags; | |
170 | ||
171 | ret->cert_cb = cert->cert_cb; | |
172 | ret->cert_cb_arg = cert->cert_cb_arg; | |
173 | ||
174 | if (cert->verify_store) { | |
c001ce33 | 175 | X509_STORE_up_ref(cert->verify_store); |
0f113f3e MC |
176 | ret->verify_store = cert->verify_store; |
177 | } | |
178 | ||
179 | if (cert->chain_store) { | |
c001ce33 | 180 | X509_STORE_up_ref(cert->chain_store); |
0f113f3e MC |
181 | ret->chain_store = cert->chain_store; |
182 | } | |
183 | ||
0f113f3e MC |
184 | ret->sec_cb = cert->sec_cb; |
185 | ret->sec_level = cert->sec_level; | |
186 | ret->sec_ex = cert->sec_ex; | |
b362ccab | 187 | |
43ae5eed | 188 | if (!custom_exts_copy(&ret->custext, &cert->custext)) |
0f113f3e | 189 | goto err; |
9076bd25 | 190 | #ifndef OPENSSL_NO_PSK |
df6da24b | 191 | if (cert->psk_identity_hint) { |
7644a9ae | 192 | ret->psk_identity_hint = OPENSSL_strdup(cert->psk_identity_hint); |
df6da24b DSH |
193 | if (ret->psk_identity_hint == NULL) |
194 | goto err; | |
195 | } | |
9076bd25 | 196 | #endif |
16203f7b | 197 | return ret; |
0f113f3e MC |
198 | |
199 | err: | |
200 | ssl_cert_free(ret); | |
9ade64de | 201 | |
0f113f3e MC |
202 | return NULL; |
203 | } | |
ca8e5b9b | 204 | |
a5ee80b9 DSH |
205 | /* Free up and clear all certificates and chains */ |
206 | ||
207 | void ssl_cert_clear_certs(CERT *c) | |
0f113f3e MC |
208 | { |
209 | int i; | |
210 | if (c == NULL) | |
211 | return; | |
212 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
213 | CERT_PKEY *cpk = c->pkeys + i; | |
222561fe RS |
214 | X509_free(cpk->x509); |
215 | cpk->x509 = NULL; | |
c5ba2d99 RS |
216 | EVP_PKEY_free(cpk->privatekey); |
217 | cpk->privatekey = NULL; | |
222561fe RS |
218 | sk_X509_pop_free(cpk->chain, X509_free); |
219 | cpk->chain = NULL; | |
25aaa98a RS |
220 | OPENSSL_free(cpk->serverinfo); |
221 | cpk->serverinfo = NULL; | |
222 | cpk->serverinfo_length = 0; | |
0f113f3e MC |
223 | } |
224 | } | |
ca8e5b9b | 225 | |
eb90a483 | 226 | void ssl_cert_free(CERT *c) |
0f113f3e MC |
227 | { |
228 | int i; | |
d02b48c6 | 229 | |
e6e9170d RS |
230 | if (c == NULL) |
231 | return; | |
2f545ae4 | 232 | CRYPTO_DOWN_REF(&c->references, &i, c->lock); |
f3f1cf84 | 233 | REF_PRINT_COUNT("CERT", c); |
0f113f3e MC |
234 | if (i > 0) |
235 | return; | |
f3f1cf84 | 236 | REF_ASSERT_ISNT(i < 0); |
d02b48c6 | 237 | |
bc36ee62 | 238 | #ifndef OPENSSL_NO_DH |
e2b420fd | 239 | EVP_PKEY_free(c->dh_tmp); |
d02b48c6 RE |
240 | #endif |
241 | ||
0f113f3e | 242 | ssl_cert_clear_certs(c); |
25aaa98a RS |
243 | OPENSSL_free(c->conf_sigalgs); |
244 | OPENSSL_free(c->client_sigalgs); | |
75c13e78 | 245 | OPENSSL_free(c->ctype); |
222561fe RS |
246 | X509_STORE_free(c->verify_store); |
247 | X509_STORE_free(c->chain_store); | |
43ae5eed | 248 | custom_exts_free(&c->custext); |
df6da24b DSH |
249 | #ifndef OPENSSL_NO_PSK |
250 | OPENSSL_free(c->psk_identity_hint); | |
251 | #endif | |
16203f7b | 252 | CRYPTO_THREAD_lock_free(c->lock); |
0f113f3e MC |
253 | OPENSSL_free(c); |
254 | } | |
d02b48c6 | 255 | |
b362ccab | 256 | int ssl_cert_set0_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) |
0f113f3e MC |
257 | { |
258 | int i, r; | |
9f0f53b7 MC |
259 | CERT_PKEY *cpk = s != NULL ? s->cert->key : ctx->cert->key; |
260 | SSL_CTX *realctx = s != NULL ? s->ctx : ctx; | |
261 | ||
0f113f3e MC |
262 | if (!cpk) |
263 | return 0; | |
0f113f3e | 264 | for (i = 0; i < sk_X509_num(chain); i++) { |
9f0f53b7 MC |
265 | X509 *x = sk_X509_value(chain, i); |
266 | ||
267 | if (!X509v3_cache_extensions(x, realctx->libctx, realctx->propq)) { | |
268 | SSLerr(0, ERR_LIB_X509); | |
269 | return 0; | |
270 | } | |
271 | ||
272 | r = ssl_security_cert(s, ctx, x, 0, 0); | |
0f113f3e MC |
273 | if (r != 1) { |
274 | SSLerr(SSL_F_SSL_CERT_SET0_CHAIN, r); | |
275 | return 0; | |
276 | } | |
277 | } | |
4379d5ce | 278 | sk_X509_pop_free(cpk->chain, X509_free); |
0f113f3e MC |
279 | cpk->chain = chain; |
280 | return 1; | |
281 | } | |
f71c6e52 | 282 | |
b362ccab | 283 | int ssl_cert_set1_chain(SSL *s, SSL_CTX *ctx, STACK_OF(X509) *chain) |
0f113f3e MC |
284 | { |
285 | STACK_OF(X509) *dchain; | |
286 | if (!chain) | |
287 | return ssl_cert_set0_chain(s, ctx, NULL); | |
288 | dchain = X509_chain_up_ref(chain); | |
289 | if (!dchain) | |
290 | return 0; | |
291 | if (!ssl_cert_set0_chain(s, ctx, dchain)) { | |
292 | sk_X509_pop_free(dchain, X509_free); | |
293 | return 0; | |
294 | } | |
295 | return 1; | |
296 | } | |
f71c6e52 | 297 | |
b362ccab | 298 | int ssl_cert_add0_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) |
0f113f3e MC |
299 | { |
300 | int r; | |
301 | CERT_PKEY *cpk = s ? s->cert->key : ctx->cert->key; | |
302 | if (!cpk) | |
303 | return 0; | |
304 | r = ssl_security_cert(s, ctx, x, 0, 0); | |
305 | if (r != 1) { | |
306 | SSLerr(SSL_F_SSL_CERT_ADD0_CHAIN_CERT, r); | |
307 | return 0; | |
308 | } | |
309 | if (!cpk->chain) | |
310 | cpk->chain = sk_X509_new_null(); | |
311 | if (!cpk->chain || !sk_X509_push(cpk->chain, x)) | |
312 | return 0; | |
313 | return 1; | |
314 | } | |
f71c6e52 | 315 | |
b362ccab | 316 | int ssl_cert_add1_chain_cert(SSL *s, SSL_CTX *ctx, X509 *x) |
0f113f3e MC |
317 | { |
318 | if (!ssl_cert_add0_chain_cert(s, ctx, x)) | |
319 | return 0; | |
05f0fb9f | 320 | X509_up_ref(x); |
0f113f3e MC |
321 | return 1; |
322 | } | |
7b6b246f RS |
323 | |
324 | int ssl_cert_select_current(CERT *c, X509 *x) | |
0f113f3e MC |
325 | { |
326 | int i; | |
327 | if (x == NULL) | |
328 | return 0; | |
329 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
330 | CERT_PKEY *cpk = c->pkeys + i; | |
331 | if (cpk->x509 == x && cpk->privatekey) { | |
332 | c->key = cpk; | |
333 | return 1; | |
334 | } | |
335 | } | |
336 | ||
337 | for (i = 0; i < SSL_PKEY_NUM; i++) { | |
338 | CERT_PKEY *cpk = c->pkeys + i; | |
339 | if (cpk->privatekey && cpk->x509 && !X509_cmp(cpk->x509, x)) { | |
340 | c->key = cpk; | |
341 | return 1; | |
342 | } | |
343 | } | |
344 | return 0; | |
345 | } | |
0f78819c DSH |
346 | |
347 | int ssl_cert_set_current(CERT *c, long op) | |
0f113f3e MC |
348 | { |
349 | int i, idx; | |
350 | if (!c) | |
351 | return 0; | |
352 | if (op == SSL_CERT_SET_FIRST) | |
353 | idx = 0; | |
354 | else if (op == SSL_CERT_SET_NEXT) { | |
355 | idx = (int)(c->key - c->pkeys + 1); | |
356 | if (idx >= SSL_PKEY_NUM) | |
357 | return 0; | |
358 | } else | |
359 | return 0; | |
360 | for (i = idx; i < SSL_PKEY_NUM; i++) { | |
361 | CERT_PKEY *cpk = c->pkeys + i; | |
362 | if (cpk->x509 && cpk->privatekey) { | |
363 | c->key = cpk; | |
364 | return 1; | |
365 | } | |
366 | } | |
367 | return 0; | |
368 | } | |
369 | ||
370 | void ssl_cert_set_cert_cb(CERT *c, int (*cb) (SSL *ssl, void *arg), void *arg) | |
371 | { | |
372 | c->cert_cb = cb; | |
373 | c->cert_cb_arg = arg; | |
374 | } | |
18d71588 | 375 | |
0f113f3e MC |
376 | int ssl_verify_cert_chain(SSL *s, STACK_OF(X509) *sk) |
377 | { | |
378 | X509 *x; | |
f0e0fd51 | 379 | int i = 0; |
0f113f3e | 380 | X509_STORE *verify_store; |
f0e0fd51 | 381 | X509_STORE_CTX *ctx = NULL; |
919ba009 | 382 | X509_VERIFY_PARAM *param; |
0f113f3e | 383 | |
f0e0fd51 RS |
384 | if ((sk == NULL) || (sk_X509_num(sk) == 0)) |
385 | return 0; | |
386 | ||
0f113f3e MC |
387 | if (s->cert->verify_store) |
388 | verify_store = s->cert->verify_store; | |
389 | else | |
390 | verify_store = s->ctx->cert_store; | |
391 | ||
a959b4fa | 392 | ctx = X509_STORE_CTX_new_with_libctx(s->ctx->libctx, s->ctx->propq); |
f0e0fd51 RS |
393 | if (ctx == NULL) { |
394 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
395 | return 0; | |
396 | } | |
0f113f3e MC |
397 | |
398 | x = sk_X509_value(sk, 0); | |
f0e0fd51 | 399 | if (!X509_STORE_CTX_init(ctx, verify_store, x, sk)) { |
0f113f3e | 400 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_X509_LIB); |
f0e0fd51 | 401 | goto end; |
0f113f3e | 402 | } |
f0e0fd51 | 403 | param = X509_STORE_CTX_get0_param(ctx); |
fbb82a60 VD |
404 | /* |
405 | * XXX: Separate @AUTHSECLEVEL and @TLSSECLEVEL would be useful at some | |
406 | * point, for now a single @SECLEVEL sets the same policy for TLS crypto | |
407 | * and PKI authentication. | |
408 | */ | |
409 | X509_VERIFY_PARAM_set_auth_level(param, SSL_get_security_level(s)); | |
919ba009 | 410 | |
0f113f3e | 411 | /* Set suite B flags if needed */ |
f0e0fd51 | 412 | X509_STORE_CTX_set_flags(ctx, tls1_suiteb(s)); |
a230b26e EK |
413 | if (!X509_STORE_CTX_set_ex_data |
414 | (ctx, SSL_get_ex_data_X509_STORE_CTX_idx(), s)) { | |
a98810bf F |
415 | goto end; |
416 | } | |
0f113f3e | 417 | |
919ba009 VD |
418 | /* Verify via DANE if enabled */ |
419 | if (DANETLS_ENABLED(&s->dane)) | |
f0e0fd51 | 420 | X509_STORE_CTX_set0_dane(ctx, &s->dane); |
919ba009 | 421 | |
0f113f3e MC |
422 | /* |
423 | * We need to inherit the verify parameters. These can be determined by | |
424 | * the context: if its a server it will verify SSL client certificates or | |
425 | * vice versa. | |
426 | */ | |
427 | ||
f0e0fd51 | 428 | X509_STORE_CTX_set_default(ctx, s->server ? "ssl_client" : "ssl_server"); |
0f113f3e | 429 | /* |
919ba009 | 430 | * Anything non-default in "s->param" should overwrite anything in the ctx. |
0f113f3e | 431 | */ |
919ba009 | 432 | X509_VERIFY_PARAM_set1(param, s->param); |
0f113f3e MC |
433 | |
434 | if (s->verify_callback) | |
f0e0fd51 | 435 | X509_STORE_CTX_set_verify_cb(ctx, s->verify_callback); |
0f113f3e MC |
436 | |
437 | if (s->ctx->app_verify_callback != NULL) | |
f0e0fd51 | 438 | i = s->ctx->app_verify_callback(ctx, s->ctx->app_verify_arg); |
fbb82a60 | 439 | else |
f0e0fd51 | 440 | i = X509_verify_cert(ctx); |
d02b48c6 | 441 | |
f0e0fd51 | 442 | s->verify_result = X509_STORE_CTX_get_error(ctx); |
696178ed DSH |
443 | sk_X509_pop_free(s->verified_chain, X509_free); |
444 | s->verified_chain = NULL; | |
f0e0fd51 RS |
445 | if (X509_STORE_CTX_get0_chain(ctx) != NULL) { |
446 | s->verified_chain = X509_STORE_CTX_get1_chain(ctx); | |
696178ed DSH |
447 | if (s->verified_chain == NULL) { |
448 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
449 | i = 0; | |
450 | } | |
451 | } | |
919ba009 VD |
452 | |
453 | /* Move peername from the store context params to the SSL handle's */ | |
454 | X509_VERIFY_PARAM_move_peername(s->param, param); | |
455 | ||
a230b26e | 456 | end: |
f0e0fd51 RS |
457 | X509_STORE_CTX_free(ctx); |
458 | return i; | |
0f113f3e | 459 | } |
d02b48c6 | 460 | |
fa7c2637 DSH |
461 | static void set0_CA_list(STACK_OF(X509_NAME) **ca_list, |
462 | STACK_OF(X509_NAME) *name_list) | |
0f113f3e | 463 | { |
222561fe | 464 | sk_X509_NAME_pop_free(*ca_list, X509_NAME_free); |
0f113f3e MC |
465 | *ca_list = name_list; |
466 | } | |
d02b48c6 | 467 | |
86135bed | 468 | STACK_OF(X509_NAME) *SSL_dup_CA_list(const STACK_OF(X509_NAME) *sk) |
0f113f3e MC |
469 | { |
470 | int i; | |
e431363f | 471 | const int num = sk_X509_NAME_num(sk); |
0f113f3e MC |
472 | STACK_OF(X509_NAME) *ret; |
473 | X509_NAME *name; | |
474 | ||
7a908204 | 475 | ret = sk_X509_NAME_new_reserve(NULL, num); |
3c82e437 F |
476 | if (ret == NULL) { |
477 | SSLerr(SSL_F_SSL_DUP_CA_LIST, ERR_R_MALLOC_FAILURE); | |
478 | return NULL; | |
479 | } | |
e431363f | 480 | for (i = 0; i < num; i++) { |
0f113f3e | 481 | name = X509_NAME_dup(sk_X509_NAME_value(sk, i)); |
e431363f | 482 | if (name == NULL) { |
32f3b98d | 483 | SSLerr(SSL_F_SSL_DUP_CA_LIST, ERR_R_MALLOC_FAILURE); |
0f113f3e | 484 | sk_X509_NAME_pop_free(ret, X509_NAME_free); |
3c82e437 | 485 | return NULL; |
0f113f3e | 486 | } |
e431363f | 487 | sk_X509_NAME_push(ret, name); /* Cannot fail after reserve call */ |
0f113f3e | 488 | } |
32f3b98d | 489 | return ret; |
0f113f3e MC |
490 | } |
491 | ||
fa7c2637 DSH |
492 | void SSL_set0_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list) |
493 | { | |
494 | set0_CA_list(&s->ca_names, name_list); | |
495 | } | |
496 | ||
497 | void SSL_CTX_set0_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list) | |
0f113f3e | 498 | { |
fa7c2637 DSH |
499 | set0_CA_list(&ctx->ca_names, name_list); |
500 | } | |
501 | ||
502 | const STACK_OF(X509_NAME) *SSL_CTX_get0_CA_list(const SSL_CTX *ctx) | |
503 | { | |
504 | return ctx->ca_names; | |
505 | } | |
506 | ||
507 | const STACK_OF(X509_NAME) *SSL_get0_CA_list(const SSL *s) | |
508 | { | |
509 | return s->ca_names != NULL ? s->ca_names : s->ctx->ca_names; | |
0f113f3e MC |
510 | } |
511 | ||
512 | void SSL_CTX_set_client_CA_list(SSL_CTX *ctx, STACK_OF(X509_NAME) *name_list) | |
513 | { | |
98732979 | 514 | set0_CA_list(&ctx->client_ca_names, name_list); |
0f113f3e | 515 | } |
d02b48c6 | 516 | |
0821bcd4 | 517 | STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(const SSL_CTX *ctx) |
0f113f3e | 518 | { |
98732979 | 519 | return ctx->client_ca_names; |
fa7c2637 DSH |
520 | } |
521 | ||
522 | void SSL_set_client_CA_list(SSL *s, STACK_OF(X509_NAME) *name_list) | |
523 | { | |
98732979 | 524 | set0_CA_list(&s->client_ca_names, name_list); |
fa7c2637 DSH |
525 | } |
526 | ||
527 | const STACK_OF(X509_NAME) *SSL_get0_peer_CA_list(const SSL *s) | |
528 | { | |
555cbb32 | 529 | return s->s3.tmp.peer_ca_names; |
0f113f3e | 530 | } |
d02b48c6 | 531 | |
0821bcd4 | 532 | STACK_OF(X509_NAME) *SSL_get_client_CA_list(const SSL *s) |
0f113f3e | 533 | { |
fa7c2637 | 534 | if (!s->server) |
555cbb32 | 535 | return s->s3.tmp.peer_ca_names; |
98732979 MC |
536 | return s->client_ca_names != NULL ? s->client_ca_names |
537 | : s->ctx->client_ca_names; | |
0f113f3e MC |
538 | } |
539 | ||
fa7c2637 | 540 | static int add_ca_name(STACK_OF(X509_NAME) **sk, const X509 *x) |
0f113f3e MC |
541 | { |
542 | X509_NAME *name; | |
543 | ||
544 | if (x == NULL) | |
fa7c2637 DSH |
545 | return 0; |
546 | if (*sk == NULL && ((*sk = sk_X509_NAME_new_null()) == NULL)) | |
547 | return 0; | |
0f113f3e MC |
548 | |
549 | if ((name = X509_NAME_dup(X509_get_subject_name(x))) == NULL) | |
fa7c2637 | 550 | return 0; |
0f113f3e MC |
551 | |
552 | if (!sk_X509_NAME_push(*sk, name)) { | |
553 | X509_NAME_free(name); | |
fa7c2637 | 554 | return 0; |
0f113f3e | 555 | } |
fa7c2637 DSH |
556 | return 1; |
557 | } | |
558 | ||
64a48fc7 | 559 | int SSL_add1_to_CA_list(SSL *ssl, const X509 *x) |
fa7c2637 DSH |
560 | { |
561 | return add_ca_name(&ssl->ca_names, x); | |
562 | } | |
563 | ||
64a48fc7 | 564 | int SSL_CTX_add1_to_CA_list(SSL_CTX *ctx, const X509 *x) |
fa7c2637 DSH |
565 | { |
566 | return add_ca_name(&ctx->ca_names, x); | |
0f113f3e MC |
567 | } |
568 | ||
64a48fc7 RL |
569 | /* |
570 | * The following two are older names are to be replaced with | |
571 | * SSL(_CTX)_add1_to_CA_list | |
572 | */ | |
0f113f3e MC |
573 | int SSL_add_client_CA(SSL *ssl, X509 *x) |
574 | { | |
98732979 | 575 | return add_ca_name(&ssl->client_ca_names, x); |
0f113f3e MC |
576 | } |
577 | ||
578 | int SSL_CTX_add_client_CA(SSL_CTX *ctx, X509 *x) | |
579 | { | |
98732979 | 580 | return add_ca_name(&ctx->client_ca_names, x); |
0f113f3e MC |
581 | } |
582 | ||
3e41defe | 583 | static int xname_cmp(const X509_NAME *a, const X509_NAME *b) |
0f113f3e | 584 | { |
3e41defe TM |
585 | unsigned char *abuf = NULL, *bbuf = NULL; |
586 | int alen, blen, ret; | |
587 | ||
588 | /* X509_NAME_cmp() itself casts away constness in this way, so | |
589 | * assume it's safe: | |
590 | */ | |
591 | alen = i2d_X509_NAME((X509_NAME *)a, &abuf); | |
592 | blen = i2d_X509_NAME((X509_NAME *)b, &bbuf); | |
593 | ||
594 | if (alen < 0 || blen < 0) | |
595 | ret = -2; | |
596 | else if (alen != blen) | |
597 | ret = alen - blen; | |
598 | else /* alen == blen */ | |
599 | ret = memcmp(abuf, bbuf, alen); | |
600 | ||
601 | OPENSSL_free(abuf); | |
602 | OPENSSL_free(bbuf); | |
603 | ||
604 | return ret; | |
0f113f3e | 605 | } |
d02b48c6 | 606 | |
3e41defe | 607 | static int xname_sk_cmp(const X509_NAME *const *a, const X509_NAME *const *b) |
7823d792 | 608 | { |
3e41defe | 609 | return xname_cmp(*a, *b); |
7823d792 TF |
610 | } |
611 | ||
612 | static unsigned long xname_hash(const X509_NAME *a) | |
613 | { | |
614 | return X509_NAME_hash((X509_NAME *)a); | |
615 | } | |
616 | ||
f73e07cf | 617 | STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file) |
0f113f3e | 618 | { |
7823d792 | 619 | BIO *in = BIO_new(BIO_s_file()); |
0f113f3e MC |
620 | X509 *x = NULL; |
621 | X509_NAME *xn = NULL; | |
7823d792 | 622 | STACK_OF(X509_NAME) *ret = NULL; |
a230b26e | 623 | LHASH_OF(X509_NAME) *name_hash = lh_X509_NAME_new(xname_hash, xname_cmp); |
0f113f3e | 624 | |
7823d792 | 625 | if ((name_hash == NULL) || (in == NULL)) { |
0f113f3e MC |
626 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); |
627 | goto err; | |
628 | } | |
629 | ||
630 | if (!BIO_read_filename(in, file)) | |
631 | goto err; | |
632 | ||
633 | for (;;) { | |
634 | if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) | |
635 | break; | |
636 | if (ret == NULL) { | |
637 | ret = sk_X509_NAME_new_null(); | |
638 | if (ret == NULL) { | |
639 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE, ERR_R_MALLOC_FAILURE); | |
640 | goto err; | |
641 | } | |
642 | } | |
643 | if ((xn = X509_get_subject_name(x)) == NULL) | |
644 | goto err; | |
645 | /* check for duplicates */ | |
646 | xn = X509_NAME_dup(xn); | |
647 | if (xn == NULL) | |
648 | goto err; | |
7823d792 TF |
649 | if (lh_X509_NAME_retrieve(name_hash, xn) != NULL) { |
650 | /* Duplicate. */ | |
0f113f3e | 651 | X509_NAME_free(xn); |
3c82e437 | 652 | xn = NULL; |
7823d792 | 653 | } else { |
9d6daf99 | 654 | lh_X509_NAME_insert(name_hash, xn); |
3c82e437 F |
655 | if (!sk_X509_NAME_push(ret, xn)) |
656 | goto err; | |
0f113f3e MC |
657 | } |
658 | } | |
66696478 | 659 | goto done; |
0f113f3e | 660 | |
0f113f3e | 661 | err: |
3c82e437 | 662 | X509_NAME_free(xn); |
66696478 RS |
663 | sk_X509_NAME_pop_free(ret, X509_NAME_free); |
664 | ret = NULL; | |
665 | done: | |
ca3a82c3 | 666 | BIO_free(in); |
222561fe | 667 | X509_free(x); |
7823d792 | 668 | lh_X509_NAME_free(name_hash); |
0f113f3e MC |
669 | if (ret != NULL) |
670 | ERR_clear_error(); | |
26a7d938 | 671 | return ret; |
0f113f3e | 672 | } |
d02b48c6 | 673 | |
661b361b | 674 | int SSL_add_file_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
0f113f3e MC |
675 | const char *file) |
676 | { | |
677 | BIO *in; | |
678 | X509 *x = NULL; | |
679 | X509_NAME *xn = NULL; | |
680 | int ret = 1; | |
681 | int (*oldcmp) (const X509_NAME *const *a, const X509_NAME *const *b); | |
682 | ||
7823d792 | 683 | oldcmp = sk_X509_NAME_set_cmp_func(stack, xname_sk_cmp); |
0f113f3e | 684 | |
9982cbbb | 685 | in = BIO_new(BIO_s_file()); |
0f113f3e MC |
686 | |
687 | if (in == NULL) { | |
a230b26e | 688 | SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK, ERR_R_MALLOC_FAILURE); |
0f113f3e MC |
689 | goto err; |
690 | } | |
691 | ||
692 | if (!BIO_read_filename(in, file)) | |
693 | goto err; | |
694 | ||
695 | for (;;) { | |
696 | if (PEM_read_bio_X509(in, &x, NULL, NULL) == NULL) | |
697 | break; | |
698 | if ((xn = X509_get_subject_name(x)) == NULL) | |
699 | goto err; | |
700 | xn = X509_NAME_dup(xn); | |
701 | if (xn == NULL) | |
702 | goto err; | |
3c82e437 F |
703 | if (sk_X509_NAME_find(stack, xn) >= 0) { |
704 | /* Duplicate. */ | |
0f113f3e | 705 | X509_NAME_free(xn); |
3c82e437 F |
706 | } else if (!sk_X509_NAME_push(stack, xn)) { |
707 | X509_NAME_free(xn); | |
708 | goto err; | |
709 | } | |
0f113f3e MC |
710 | } |
711 | ||
712 | ERR_clear_error(); | |
66696478 | 713 | goto done; |
0f113f3e | 714 | |
0f113f3e | 715 | err: |
3c82e437 | 716 | ret = 0; |
66696478 | 717 | done: |
ca3a82c3 | 718 | BIO_free(in); |
25aaa98a | 719 | X509_free(x); |
0f113f3e | 720 | (void)sk_X509_NAME_set_cmp_func(stack, oldcmp); |
0f113f3e MC |
721 | return ret; |
722 | } | |
723 | ||
661b361b | 724 | int SSL_add_dir_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, |
0f113f3e MC |
725 | const char *dir) |
726 | { | |
727 | OPENSSL_DIR_CTX *d = NULL; | |
728 | const char *filename; | |
729 | int ret = 0; | |
eb90a483 | 730 | |
0f113f3e | 731 | /* Note that a side effect is that the CAs will be sorted by name */ |
4083a229 | 732 | |
0f113f3e MC |
733 | while ((filename = OPENSSL_DIR_read(&d, dir))) { |
734 | char buf[1024]; | |
735 | int r; | |
4083a229 | 736 | |
cbe29648 | 737 | if (strlen(dir) + strlen(filename) + 2 > sizeof(buf)) { |
0f113f3e MC |
738 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, |
739 | SSL_R_PATH_TOO_LONG); | |
740 | goto err; | |
741 | } | |
4083a229 | 742 | #ifdef OPENSSL_SYS_VMS |
cbe29648 | 743 | r = BIO_snprintf(buf, sizeof(buf), "%s%s", dir, filename); |
4083a229 | 744 | #else |
cbe29648 | 745 | r = BIO_snprintf(buf, sizeof(buf), "%s/%s", dir, filename); |
4083a229 | 746 | #endif |
0f113f3e MC |
747 | if (r <= 0 || r >= (int)sizeof(buf)) |
748 | goto err; | |
749 | if (!SSL_add_file_cert_subjects_to_stack(stack, buf)) | |
750 | goto err; | |
751 | } | |
752 | ||
753 | if (errno) { | |
ff988500 RS |
754 | ERR_raise_data(ERR_LIB_SYS, get_last_sys_error(), |
755 | "calling OPENSSL_dir_read(%s)", | |
756 | dir); | |
0f113f3e MC |
757 | SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK, ERR_R_SYS_LIB); |
758 | goto err; | |
759 | } | |
760 | ||
761 | ret = 1; | |
762 | ||
763 | err: | |
764 | if (d) | |
765 | OPENSSL_DIR_end(&d); | |
16203f7b | 766 | |
0f113f3e MC |
767 | return ret; |
768 | } | |
285046ec | 769 | |
6dcb100f RL |
770 | static int add_uris_recursive(STACK_OF(X509_NAME) *stack, |
771 | const char *uri, int depth) | |
772 | { | |
773 | int ok = 1; | |
774 | OSSL_STORE_CTX *ctx = NULL; | |
775 | X509 *x = NULL; | |
776 | X509_NAME *xn = NULL; | |
777 | ||
778 | if ((ctx = OSSL_STORE_open(uri, NULL, NULL, NULL, NULL)) == NULL) | |
779 | goto err; | |
780 | ||
781 | while (!OSSL_STORE_eof(ctx) && !OSSL_STORE_error(ctx)) { | |
782 | OSSL_STORE_INFO *info = OSSL_STORE_load(ctx); | |
783 | int infotype = info == 0 ? 0 : OSSL_STORE_INFO_get_type(info); | |
784 | ||
785 | if (info == NULL) | |
786 | continue; | |
787 | ||
788 | if (infotype == OSSL_STORE_INFO_NAME) { | |
789 | /* | |
790 | * This is an entry in the "directory" represented by the current | |
791 | * uri. if |depth| allows, dive into it. | |
792 | */ | |
ee669781 RL |
793 | if (depth > 0) |
794 | ok = add_uris_recursive(stack, OSSL_STORE_INFO_get0_NAME(info), | |
795 | depth - 1); | |
6dcb100f RL |
796 | } else if (infotype == OSSL_STORE_INFO_CERT) { |
797 | if ((x = OSSL_STORE_INFO_get0_CERT(info)) == NULL | |
798 | || (xn = X509_get_subject_name(x)) == NULL | |
799 | || (xn = X509_NAME_dup(xn)) == NULL) | |
800 | goto err; | |
801 | if (sk_X509_NAME_find(stack, xn) >= 0) { | |
802 | /* Duplicate. */ | |
803 | X509_NAME_free(xn); | |
804 | } else if (!sk_X509_NAME_push(stack, xn)) { | |
805 | X509_NAME_free(xn); | |
806 | goto err; | |
807 | } | |
808 | } | |
809 | ||
810 | OSSL_STORE_INFO_free(info); | |
811 | } | |
812 | ||
813 | ERR_clear_error(); | |
814 | goto done; | |
815 | ||
816 | err: | |
817 | ok = 0; | |
818 | done: | |
819 | OSSL_STORE_close(ctx); | |
820 | ||
821 | return ok; | |
822 | } | |
823 | ||
824 | int SSL_add_store_cert_subjects_to_stack(STACK_OF(X509_NAME) *stack, | |
825 | const char *store) | |
826 | { | |
827 | int (*oldcmp) (const X509_NAME *const *a, const X509_NAME *const *b) | |
828 | = sk_X509_NAME_set_cmp_func(stack, xname_sk_cmp); | |
829 | int ret = add_uris_recursive(stack, store, 1); | |
830 | ||
831 | (void)sk_X509_NAME_set_cmp_func(stack, oldcmp); | |
832 | return ret; | |
833 | } | |
834 | ||
74ecfab4 | 835 | /* Build a certificate chain for current certificate */ |
b362ccab | 836 | int ssl_build_cert_chain(SSL *s, SSL_CTX *ctx, int flags) |
0f113f3e MC |
837 | { |
838 | CERT *c = s ? s->cert : ctx->cert; | |
839 | CERT_PKEY *cpk = c->key; | |
840 | X509_STORE *chain_store = NULL; | |
f0e0fd51 | 841 | X509_STORE_CTX *xs_ctx = NULL; |
0f113f3e MC |
842 | STACK_OF(X509) *chain = NULL, *untrusted = NULL; |
843 | X509 *x; | |
844 | int i, rv = 0; | |
0f113f3e MC |
845 | |
846 | if (!cpk->x509) { | |
847 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_NO_CERTIFICATE_SET); | |
848 | goto err; | |
849 | } | |
850 | /* Rearranging and check the chain: add everything to a store */ | |
851 | if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) { | |
852 | chain_store = X509_STORE_new(); | |
a71edf3b | 853 | if (chain_store == NULL) |
0f113f3e MC |
854 | goto err; |
855 | for (i = 0; i < sk_X509_num(cpk->chain); i++) { | |
856 | x = sk_X509_value(cpk->chain, i); | |
c0452248 | 857 | if (!X509_STORE_add_cert(chain_store, x)) |
0f113f3e | 858 | goto err; |
0f113f3e | 859 | } |
c0452248 RS |
860 | /* Add EE cert too: it might be self signed */ |
861 | if (!X509_STORE_add_cert(chain_store, cpk->x509)) | |
862 | goto err; | |
0f113f3e MC |
863 | } else { |
864 | if (c->chain_store) | |
865 | chain_store = c->chain_store; | |
866 | else if (s) | |
867 | chain_store = s->ctx->cert_store; | |
868 | else | |
869 | chain_store = ctx->cert_store; | |
870 | ||
871 | if (flags & SSL_BUILD_CHAIN_FLAG_UNTRUSTED) | |
872 | untrusted = cpk->chain; | |
873 | } | |
874 | ||
a959b4fa | 875 | xs_ctx = X509_STORE_CTX_new_with_libctx(s->ctx->libctx, s->ctx->propq); |
f0e0fd51 RS |
876 | if (xs_ctx == NULL) { |
877 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, ERR_R_MALLOC_FAILURE); | |
878 | goto err; | |
879 | } | |
880 | if (!X509_STORE_CTX_init(xs_ctx, chain_store, cpk->x509, untrusted)) { | |
0f113f3e MC |
881 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, ERR_R_X509_LIB); |
882 | goto err; | |
883 | } | |
884 | /* Set suite B flags if needed */ | |
f0e0fd51 | 885 | X509_STORE_CTX_set_flags(xs_ctx, |
0f113f3e MC |
886 | c->cert_flags & SSL_CERT_FLAG_SUITEB_128_LOS); |
887 | ||
f0e0fd51 | 888 | i = X509_verify_cert(xs_ctx); |
0f113f3e MC |
889 | if (i <= 0 && flags & SSL_BUILD_CHAIN_FLAG_IGNORE_ERROR) { |
890 | if (flags & SSL_BUILD_CHAIN_FLAG_CLEAR_ERROR) | |
891 | ERR_clear_error(); | |
892 | i = 1; | |
893 | rv = 2; | |
894 | } | |
895 | if (i > 0) | |
f0e0fd51 | 896 | chain = X509_STORE_CTX_get1_chain(xs_ctx); |
0f113f3e MC |
897 | if (i <= 0) { |
898 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, SSL_R_CERTIFICATE_VERIFY_FAILED); | |
f0e0fd51 | 899 | i = X509_STORE_CTX_get_error(xs_ctx); |
0f113f3e MC |
900 | ERR_add_error_data(2, "Verify error:", |
901 | X509_verify_cert_error_string(i)); | |
902 | ||
0f113f3e MC |
903 | goto err; |
904 | } | |
0f113f3e MC |
905 | /* Remove EE certificate from chain */ |
906 | x = sk_X509_shift(chain); | |
907 | X509_free(x); | |
908 | if (flags & SSL_BUILD_CHAIN_FLAG_NO_ROOT) { | |
909 | if (sk_X509_num(chain) > 0) { | |
910 | /* See if last cert is self signed */ | |
911 | x = sk_X509_value(chain, sk_X509_num(chain) - 1); | |
a8d8e06b | 912 | if (X509_get_extension_flags(x) & EXFLAG_SS) { |
0f113f3e MC |
913 | x = sk_X509_pop(chain); |
914 | X509_free(x); | |
915 | } | |
916 | } | |
917 | } | |
918 | /* | |
919 | * Check security level of all CA certificates: EE will have been checked | |
920 | * already. | |
921 | */ | |
922 | for (i = 0; i < sk_X509_num(chain); i++) { | |
923 | x = sk_X509_value(chain, i); | |
924 | rv = ssl_security_cert(s, ctx, x, 0, 0); | |
925 | if (rv != 1) { | |
926 | SSLerr(SSL_F_SSL_BUILD_CERT_CHAIN, rv); | |
927 | sk_X509_pop_free(chain, X509_free); | |
928 | rv = 0; | |
929 | goto err; | |
930 | } | |
931 | } | |
222561fe | 932 | sk_X509_pop_free(cpk->chain, X509_free); |
0f113f3e MC |
933 | cpk->chain = chain; |
934 | if (rv == 0) | |
935 | rv = 1; | |
936 | err: | |
937 | if (flags & SSL_BUILD_CHAIN_FLAG_CHECK) | |
938 | X509_STORE_free(chain_store); | |
f0e0fd51 | 939 | X509_STORE_CTX_free(xs_ctx); |
0f113f3e MC |
940 | |
941 | return rv; | |
942 | } | |
74ecfab4 DSH |
943 | |
944 | int ssl_cert_set_cert_store(CERT *c, X509_STORE *store, int chain, int ref) | |
0f113f3e MC |
945 | { |
946 | X509_STORE **pstore; | |
947 | if (chain) | |
948 | pstore = &c->chain_store; | |
949 | else | |
950 | pstore = &c->verify_store; | |
222561fe | 951 | X509_STORE_free(*pstore); |
0f113f3e MC |
952 | *pstore = store; |
953 | if (ref && store) | |
c001ce33 | 954 | X509_STORE_up_ref(store); |
0f113f3e MC |
955 | return 1; |
956 | } | |
957 | ||
a230b26e EK |
958 | static int ssl_security_default_callback(const SSL *s, const SSL_CTX *ctx, |
959 | int op, int bits, int nid, void *other, | |
0f113f3e MC |
960 | void *ex) |
961 | { | |
962 | int level, minbits; | |
963 | static const int minbits_table[5] = { 80, 112, 128, 192, 256 }; | |
964 | if (ctx) | |
965 | level = SSL_CTX_get_security_level(ctx); | |
966 | else | |
967 | level = SSL_get_security_level(s); | |
a7cf07b4 VD |
968 | |
969 | if (level <= 0) { | |
970 | /* | |
971 | * No EDH keys weaker than 1024-bits even at level 0, otherwise, | |
972 | * anything goes. | |
973 | */ | |
974 | if (op == SSL_SECOP_TMP_DH && bits < 80) | |
975 | return 0; | |
0f113f3e | 976 | return 1; |
a7cf07b4 | 977 | } |
0f113f3e MC |
978 | if (level > 5) |
979 | level = 5; | |
980 | minbits = minbits_table[level - 1]; | |
981 | switch (op) { | |
982 | case SSL_SECOP_CIPHER_SUPPORTED: | |
983 | case SSL_SECOP_CIPHER_SHARED: | |
984 | case SSL_SECOP_CIPHER_CHECK: | |
985 | { | |
986 | const SSL_CIPHER *c = other; | |
987 | /* No ciphers below security level */ | |
988 | if (bits < minbits) | |
989 | return 0; | |
990 | /* No unauthenticated ciphersuites */ | |
991 | if (c->algorithm_auth & SSL_aNULL) | |
992 | return 0; | |
993 | /* No MD5 mac ciphersuites */ | |
994 | if (c->algorithm_mac & SSL_MD5) | |
995 | return 0; | |
996 | /* SHA1 HMAC is 160 bits of security */ | |
997 | if (minbits > 160 && c->algorithm_mac & SSL_SHA1) | |
998 | return 0; | |
999 | /* Level 2: no RC4 */ | |
1000 | if (level >= 2 && c->algorithm_enc == SSL_RC4) | |
1001 | return 0; | |
1002 | /* Level 3: forward secure ciphersuites only */ | |
75b68c9e TM |
1003 | if (level >= 3 && c->min_tls != TLS1_3_VERSION && |
1004 | !(c->algorithm_mkey & (SSL_kEDH | SSL_kEECDH))) | |
0f113f3e MC |
1005 | return 0; |
1006 | break; | |
1007 | } | |
1008 | case SSL_SECOP_VERSION: | |
4fa52141 VD |
1009 | if (!SSL_IS_DTLS(s)) { |
1010 | /* SSLv3 not allowed at level 2 */ | |
1011 | if (nid <= SSL3_VERSION && level >= 2) | |
1012 | return 0; | |
1013 | /* TLS v1.1 and above only for level 3 */ | |
1014 | if (nid <= TLS1_VERSION && level >= 3) | |
1015 | return 0; | |
1016 | /* TLS v1.2 only for level 4 and above */ | |
1017 | if (nid <= TLS1_1_VERSION && level >= 4) | |
1018 | return 0; | |
1019 | } else { | |
1020 | /* DTLS v1.2 only for level 4 and above */ | |
1021 | if (DTLS_VERSION_LT(nid, DTLS1_2_VERSION) && level >= 4) | |
1022 | return 0; | |
1023 | } | |
0f113f3e MC |
1024 | break; |
1025 | ||
1026 | case SSL_SECOP_COMPRESSION: | |
1027 | if (level >= 2) | |
1028 | return 0; | |
1029 | break; | |
1030 | case SSL_SECOP_TICKET: | |
1031 | if (level >= 3) | |
1032 | return 0; | |
1033 | break; | |
1034 | default: | |
1035 | if (bits < minbits) | |
1036 | return 0; | |
1037 | } | |
1038 | return 1; | |
1039 | } | |
b362ccab | 1040 | |
e4646a89 | 1041 | int ssl_security(const SSL *s, int op, int bits, int nid, void *other) |
0f113f3e MC |
1042 | { |
1043 | return s->cert->sec_cb(s, NULL, op, bits, nid, other, s->cert->sec_ex); | |
1044 | } | |
b362ccab | 1045 | |
e4646a89 | 1046 | int ssl_ctx_security(const SSL_CTX *ctx, int op, int bits, int nid, void *other) |
0f113f3e MC |
1047 | { |
1048 | return ctx->cert->sec_cb(NULL, ctx, op, bits, nid, other, | |
1049 | ctx->cert->sec_ex); | |
1050 | } | |
c04cd728 | 1051 | |
11d2641f | 1052 | int ssl_cert_lookup_by_nid(int nid, size_t *pidx) |
c04cd728 | 1053 | { |
c04cd728 DSH |
1054 | size_t i; |
1055 | ||
c04cd728 DSH |
1056 | for (i = 0; i < OSSL_NELEM(ssl_cert_info); i++) { |
1057 | if (ssl_cert_info[i].nid == nid) { | |
11d2641f MC |
1058 | *pidx = i; |
1059 | return 1; | |
c04cd728 DSH |
1060 | } |
1061 | } | |
11d2641f MC |
1062 | |
1063 | return 0; | |
1064 | } | |
1065 | ||
1066 | const SSL_CERT_LOOKUP *ssl_cert_lookup_by_pkey(const EVP_PKEY *pk, size_t *pidx) | |
1067 | { | |
1068 | int nid = EVP_PKEY_id(pk); | |
1069 | size_t tmpidx; | |
1070 | ||
1071 | if (nid == NID_undef) | |
1072 | return NULL; | |
1073 | ||
1074 | if (!ssl_cert_lookup_by_nid(nid, &tmpidx)) | |
1075 | return NULL; | |
1076 | ||
1077 | if (pidx != NULL) | |
1078 | *pidx = tmpidx; | |
1079 | ||
1080 | return &ssl_cert_info[tmpidx]; | |
c04cd728 DSH |
1081 | } |
1082 | ||
1083 | const SSL_CERT_LOOKUP *ssl_cert_lookup_by_idx(size_t idx) | |
1084 | { | |
1085 | if (idx >= OSSL_NELEM(ssl_cert_info)) | |
b2555168 | 1086 | return NULL; |
c04cd728 DSH |
1087 | return &ssl_cert_info[idx]; |
1088 | } |