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d02b48c6 | 1 | /* ssl/ssl_cert.c */ |
58964a49 | 2 | /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) |
d02b48c6 RE |
3 | * All rights reserved. |
4 | * | |
5 | * This package is an SSL implementation written | |
6 | * by Eric Young (eay@cryptsoft.com). | |
7 | * The implementation was written so as to conform with Netscapes SSL. | |
8 | * | |
9 | * This library is free for commercial and non-commercial use as long as | |
10 | * the following conditions are aheared to. The following conditions | |
11 | * apply to all code found in this distribution, be it the RC4, RSA, | |
12 | * lhash, DES, etc., code; not just the SSL code. The SSL documentation | |
13 | * included with this distribution is covered by the same copyright terms | |
14 | * except that the holder is Tim Hudson (tjh@cryptsoft.com). | |
15 | * | |
16 | * Copyright remains Eric Young's, and as such any Copyright notices in | |
17 | * the code are not to be removed. | |
18 | * If this package is used in a product, Eric Young should be given attribution | |
19 | * as the author of the parts of the library used. | |
20 | * This can be in the form of a textual message at program startup or | |
21 | * in documentation (online or textual) provided with the package. | |
22 | * | |
23 | * Redistribution and use in source and binary forms, with or without | |
24 | * modification, are permitted provided that the following conditions | |
25 | * are met: | |
26 | * 1. Redistributions of source code must retain the copyright | |
27 | * notice, this list of conditions and the following disclaimer. | |
28 | * 2. Redistributions in binary form must reproduce the above copyright | |
29 | * notice, this list of conditions and the following disclaimer in the | |
30 | * documentation and/or other materials provided with the distribution. | |
31 | * 3. All advertising materials mentioning features or use of this software | |
32 | * must display the following acknowledgement: | |
33 | * "This product includes cryptographic software written by | |
34 | * Eric Young (eay@cryptsoft.com)" | |
35 | * The word 'cryptographic' can be left out if the rouines from the library | |
36 | * being used are not cryptographic related :-). | |
37 | * 4. If you include any Windows specific code (or a derivative thereof) from | |
38 | * the apps directory (application code) you must include an acknowledgement: | |
39 | * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" | |
40 | * | |
41 | * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND | |
42 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
43 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
44 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE | |
45 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
46 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
47 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
48 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
49 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
50 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
51 | * SUCH DAMAGE. | |
52 | * | |
53 | * The licence and distribution terms for any publically available version or | |
54 | * derivative of this code cannot be changed. i.e. this code cannot simply be | |
55 | * copied and put under another distribution licence | |
56 | * [including the GNU Public Licence.] | |
57 | */ | |
58 | ||
59 | #include <stdio.h> | |
60 | #include "objects.h" | |
61 | #include "bio.h" | |
62 | #include "pem.h" | |
63 | #include "ssl_locl.h" | |
64 | ||
dfeab068 RE |
65 | int SSL_get_ex_data_X509_STORE_CTX_idx() |
66 | { | |
67 | static int ssl_x509_store_ctx_idx= -1; | |
68 | ||
69 | if (ssl_x509_store_ctx_idx < 0) | |
70 | { | |
71 | ssl_x509_store_ctx_idx=X509_STORE_CTX_get_ex_new_index( | |
72 | 0,"SSL for verifiy callback",NULL,NULL,NULL); | |
73 | } | |
74 | return(ssl_x509_store_ctx_idx); | |
75 | } | |
76 | ||
d02b48c6 RE |
77 | CERT *ssl_cert_new() |
78 | { | |
79 | CERT *ret; | |
80 | ||
81 | ret=(CERT *)Malloc(sizeof(CERT)); | |
82 | if (ret == NULL) | |
83 | { | |
84 | SSLerr(SSL_F_SSL_CERT_NEW,ERR_R_MALLOC_FAILURE); | |
85 | return(NULL); | |
86 | } | |
87 | memset(ret,0,sizeof(CERT)); | |
88 | /* | |
89 | ret->valid=0; | |
90 | ret->mask=0; | |
91 | ret->export_mask=0; | |
92 | ret->cert_type=0; | |
93 | ret->key->x509=NULL; | |
94 | ret->key->publickey=NULL; | |
95 | ret->key->privatekey=NULL; */ | |
96 | ||
97 | ret->key= &(ret->pkeys[SSL_PKEY_RSA_ENC]); | |
98 | ret->references=1; | |
99 | ||
100 | return(ret); | |
101 | } | |
102 | ||
103 | void ssl_cert_free(c) | |
104 | CERT *c; | |
105 | { | |
106 | int i; | |
107 | ||
108 | i=CRYPTO_add(&c->references,-1,CRYPTO_LOCK_SSL_CERT); | |
58964a49 RE |
109 | #ifdef REF_PRINT |
110 | REF_PRINT("CERT",c); | |
111 | #endif | |
d02b48c6 RE |
112 | if (i > 0) return; |
113 | #ifdef REF_CHECK | |
114 | if (i < 0) | |
115 | { | |
116 | fprintf(stderr,"ssl_cert_free, bad reference count\n"); | |
117 | abort(); /* ok */ | |
118 | } | |
119 | #endif | |
120 | ||
121 | #ifndef NO_RSA | |
122 | if (c->rsa_tmp) RSA_free(c->rsa_tmp); | |
123 | #endif | |
124 | #ifndef NO_DH | |
125 | if (c->dh_tmp) DH_free(c->dh_tmp); | |
126 | #endif | |
127 | ||
128 | for (i=0; i<SSL_PKEY_NUM; i++) | |
129 | { | |
130 | if (c->pkeys[i].x509 != NULL) | |
131 | X509_free(c->pkeys[i].x509); | |
132 | if (c->pkeys[i].privatekey != NULL) | |
133 | EVP_PKEY_free(c->pkeys[i].privatekey); | |
134 | #if 0 | |
135 | if (c->pkeys[i].publickey != NULL) | |
136 | EVP_PKEY_free(c->pkeys[i].publickey); | |
137 | #endif | |
138 | } | |
139 | if (c->cert_chain != NULL) | |
140 | sk_pop_free(c->cert_chain,X509_free); | |
141 | Free(c); | |
142 | } | |
143 | ||
144 | int ssl_set_cert_type(c, type) | |
145 | CERT *c; | |
146 | int type; | |
147 | { | |
148 | c->cert_type=type; | |
149 | return(1); | |
150 | } | |
151 | ||
152 | int ssl_verify_cert_chain(s,sk) | |
153 | SSL *s; | |
154 | STACK *sk; | |
155 | { | |
156 | X509 *x; | |
157 | int i; | |
158 | X509_STORE_CTX ctx; | |
159 | ||
160 | if ((sk == NULL) || (sk_num(sk) == 0)) | |
161 | return(0); | |
162 | ||
163 | x=(X509 *)sk_value(sk,0); | |
164 | X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk); | |
dfeab068 RE |
165 | X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(), |
166 | (char *)s); | |
d02b48c6 RE |
167 | |
168 | if (s->ctx->app_verify_callback != NULL) | |
169 | i=s->ctx->app_verify_callback(&ctx); | |
170 | else | |
dfeab068 RE |
171 | { |
172 | #ifndef NO_X509_VERIFY | |
d02b48c6 | 173 | i=X509_verify_cert(&ctx); |
dfeab068 RE |
174 | #else |
175 | i=0; | |
176 | ctx.error=X509_V_ERR_APPLICATION_VERIFICATION; | |
177 | SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_NO_VERIFY_CALLBACK); | |
178 | #endif | |
179 | } | |
d02b48c6 | 180 | |
d02b48c6 | 181 | s->verify_result=ctx.error; |
dfeab068 | 182 | X509_STORE_CTX_cleanup(&ctx); |
d02b48c6 RE |
183 | |
184 | return(i); | |
185 | } | |
186 | ||
187 | static void set_client_CA_list(ca_list,list) | |
188 | STACK **ca_list; | |
189 | STACK *list; | |
190 | { | |
191 | if (*ca_list != NULL) | |
192 | sk_pop_free(*ca_list,X509_NAME_free); | |
193 | ||
194 | *ca_list=list; | |
195 | } | |
196 | ||
197 | STACK *SSL_dup_CA_list(sk) | |
198 | STACK *sk; | |
199 | { | |
200 | int i; | |
201 | STACK *ret; | |
202 | X509_NAME *name; | |
203 | ||
204 | ret=sk_new_null(); | |
205 | for (i=0; i<sk_num(sk); i++) | |
206 | { | |
207 | name=X509_NAME_dup((X509_NAME *)sk_value(sk,i)); | |
208 | if ((name == NULL) || !sk_push(ret,(char *)name)) | |
209 | { | |
210 | sk_pop_free(ret,X509_NAME_free); | |
211 | return(NULL); | |
212 | } | |
213 | } | |
214 | return(ret); | |
215 | } | |
216 | ||
217 | void SSL_set_client_CA_list(s,list) | |
218 | SSL *s; | |
219 | STACK *list; | |
220 | { | |
221 | set_client_CA_list(&(s->client_CA),list); | |
222 | } | |
223 | ||
224 | void SSL_CTX_set_client_CA_list(ctx,list) | |
225 | SSL_CTX *ctx; | |
226 | STACK *list; | |
227 | { | |
228 | set_client_CA_list(&(ctx->client_CA),list); | |
229 | } | |
230 | ||
231 | STACK *SSL_CTX_get_client_CA_list(ctx) | |
232 | SSL_CTX *ctx; | |
233 | { | |
234 | return(ctx->client_CA); | |
235 | } | |
236 | ||
237 | STACK *SSL_get_client_CA_list(s) | |
238 | SSL *s; | |
239 | { | |
240 | if (s->type == SSL_ST_CONNECT) | |
241 | { /* we are in the client */ | |
58964a49 RE |
242 | if (((s->version>>8) == SSL3_VERSION_MAJOR) && |
243 | (s->s3 != NULL)) | |
d02b48c6 RE |
244 | return(s->s3->tmp.ca_names); |
245 | else | |
246 | return(NULL); | |
247 | } | |
248 | else | |
249 | { | |
250 | if (s->client_CA != NULL) | |
251 | return(s->client_CA); | |
252 | else | |
253 | return(s->ctx->client_CA); | |
254 | } | |
255 | } | |
256 | ||
257 | static int add_client_CA(sk,x) | |
258 | STACK **sk; | |
259 | X509 *x; | |
260 | { | |
261 | X509_NAME *name; | |
262 | ||
263 | if (x == NULL) return(0); | |
264 | if ((*sk == NULL) && ((*sk=sk_new_null()) == NULL)) | |
265 | return(0); | |
266 | ||
267 | if ((name=X509_NAME_dup(X509_get_subject_name(x))) == NULL) | |
268 | return(0); | |
269 | ||
270 | if (!sk_push(*sk,(char *)name)) | |
271 | { | |
272 | X509_NAME_free(name); | |
273 | return(0); | |
274 | } | |
275 | return(1); | |
276 | } | |
277 | ||
278 | int SSL_add_client_CA(ssl,x) | |
279 | SSL *ssl; | |
280 | X509 *x; | |
281 | { | |
282 | return(add_client_CA(&(ssl->client_CA),x)); | |
283 | } | |
284 | ||
285 | int SSL_CTX_add_client_CA(ctx,x) | |
286 | SSL_CTX *ctx; | |
287 | X509 *x; | |
288 | { | |
289 | return(add_client_CA(&(ctx->client_CA),x)); | |
290 | } | |
291 | ||
292 | static int name_cmp(a,b) | |
293 | X509_NAME **a,**b; | |
294 | { | |
295 | return(X509_NAME_cmp(*a,*b)); | |
296 | } | |
297 | ||
58964a49 | 298 | #ifndef NO_STDIO |
d02b48c6 RE |
299 | STACK *SSL_load_client_CA_file(file) |
300 | char *file; | |
301 | { | |
302 | BIO *in; | |
303 | X509 *x=NULL; | |
304 | X509_NAME *xn=NULL; | |
305 | STACK *ret,*sk; | |
306 | ||
307 | ret=sk_new(NULL); | |
308 | sk=sk_new(name_cmp); | |
58964a49 RE |
309 | |
310 | in=BIO_new(BIO_s_file_internal()); | |
311 | ||
d02b48c6 RE |
312 | if ((ret == NULL) || (sk == NULL) || (in == NULL)) |
313 | { | |
314 | SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE); | |
315 | goto err; | |
316 | } | |
317 | ||
318 | if (!BIO_read_filename(in,file)) | |
319 | goto err; | |
320 | ||
321 | for (;;) | |
322 | { | |
323 | if (PEM_read_bio_X509(in,&x,NULL) == NULL) | |
324 | break; | |
325 | if ((xn=X509_get_subject_name(x)) == NULL) goto err; | |
326 | /* check for duplicates */ | |
327 | xn=X509_NAME_dup(xn); | |
328 | if (xn == NULL) goto err; | |
329 | if (sk_find(sk,(char *)xn) >= 0) | |
330 | X509_NAME_free(xn); | |
331 | else | |
332 | { | |
333 | sk_push(sk,(char *)xn); | |
334 | sk_push(ret,(char *)xn); | |
335 | } | |
336 | } | |
337 | ||
338 | if (0) | |
339 | { | |
340 | err: | |
341 | if (ret != NULL) sk_pop_free(ret,X509_NAME_free); | |
342 | ret=NULL; | |
343 | } | |
344 | if (sk != NULL) sk_free(sk); | |
345 | if (in != NULL) BIO_free(in); | |
346 | if (x != NULL) X509_free(x); | |
347 | return(ret); | |
348 | } | |
58964a49 | 349 | #endif |
d02b48c6 | 350 |