1 /*! \file ssl/ssl_cert.c */
2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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.
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).
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.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
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)"
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
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.]
60 #include <sys/types.h>
69 int SSL_get_ex_data_X509_STORE_CTX_idx()
71 static int ssl_x509_store_ctx_idx= -1;
73 if (ssl_x509_store_ctx_idx < 0)
75 ssl_x509_store_ctx_idx=X509_STORE_CTX_get_ex_new_index(
76 0,"SSL for verify callback",NULL,NULL,NULL);
78 return(ssl_x509_store_ctx_idx);
85 ret=(CERT *)Malloc(sizeof(CERT));
88 SSLerr(SSL_F_SSL_CERT_NEW,ERR_R_MALLOC_FAILURE);
91 memset(ret,0,sizeof(CERT));
98 ret->key->publickey=NULL;
99 ret->key->privatekey=NULL; */
101 ret->key= &(ret->pkeys[SSL_PKEY_RSA_ENC]);
107 void ssl_cert_free(CERT *c)
114 i=CRYPTO_add(&c->references,-1,CRYPTO_LOCK_SSL_CERT);
122 fprintf(stderr,"ssl_cert_free, bad reference count\n");
128 if (c->rsa_tmp) RSA_free(c->rsa_tmp);
131 if (c->dh_tmp) DH_free(c->dh_tmp);
134 for (i=0; i<SSL_PKEY_NUM; i++)
136 if (c->pkeys[i].x509 != NULL)
137 X509_free(c->pkeys[i].x509);
138 if (c->pkeys[i].privatekey != NULL)
139 EVP_PKEY_free(c->pkeys[i].privatekey);
141 if (c->pkeys[i].publickey != NULL)
142 EVP_PKEY_free(c->pkeys[i].publickey);
145 if (c->cert_chain != NULL)
146 sk_pop_free(c->cert_chain,X509_free);
150 int ssl_cert_instantiate(CERT **o, CERT *d)
155 SSLerr(SSL_F_SSL_CERT_INSTANTIATE, ERR_R_PASSED_NULL_PARAMETER);
158 if (*o != NULL && (d == NULL || *o != d))
160 if ((n = ssl_cert_new()) == NULL)
162 SSLerr(SSL_F_SSL_CERT_INSTANTIATE, ERR_R_MALLOC_FAILURE);
171 int ssl_set_cert_type(CERT *c,int type)
177 int ssl_verify_cert_chain(SSL *s,STACK *sk)
183 if ((sk == NULL) || (sk_num(sk) == 0))
186 x=(X509 *)sk_value(sk,0);
187 X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk);
188 X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),
191 if (s->ctx->app_verify_callback != NULL)
192 i=s->ctx->app_verify_callback(&ctx);
195 #ifndef NO_X509_VERIFY
196 i=X509_verify_cert(&ctx);
199 ctx.error=X509_V_ERR_APPLICATION_VERIFICATION;
200 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_NO_VERIFY_CALLBACK);
204 s->verify_result=ctx.error;
205 X509_STORE_CTX_cleanup(&ctx);
210 static void set_client_CA_list(STACK **ca_list,STACK *list)
212 if (*ca_list != NULL)
213 sk_pop_free(*ca_list,X509_NAME_free);
218 STACK *SSL_dup_CA_list(STACK *sk)
225 for (i=0; i<sk_num(sk); i++)
227 name=X509_NAME_dup((X509_NAME *)sk_value(sk,i));
228 if ((name == NULL) || !sk_push(ret,(char *)name))
230 sk_pop_free(ret,X509_NAME_free);
237 void SSL_set_client_CA_list(SSL *s,STACK *list)
239 set_client_CA_list(&(s->client_CA),list);
242 void SSL_CTX_set_client_CA_list(SSL_CTX *ctx,STACK *list)
244 set_client_CA_list(&(ctx->client_CA),list);
247 STACK *SSL_CTX_get_client_CA_list(SSL_CTX *ctx)
249 return(ctx->client_CA);
252 STACK *SSL_get_client_CA_list(SSL *s)
254 if (s->type == SSL_ST_CONNECT)
255 { /* we are in the client */
256 if (((s->version>>8) == SSL3_VERSION_MAJOR) &&
258 return(s->s3->tmp.ca_names);
264 if (s->client_CA != NULL)
265 return(s->client_CA);
267 return(s->ctx->client_CA);
271 static int add_client_CA(STACK **sk,X509 *x)
275 if (x == NULL) return(0);
276 if ((*sk == NULL) && ((*sk=sk_new_null()) == NULL))
279 if ((name=X509_NAME_dup(X509_get_subject_name(x))) == NULL)
282 if (!sk_push(*sk,(char *)name))
284 X509_NAME_free(name);
290 int SSL_add_client_CA(SSL *ssl,X509 *x)
292 return(add_client_CA(&(ssl->client_CA),x));
295 int SSL_CTX_add_client_CA(SSL_CTX *ctx,X509 *x)
297 return(add_client_CA(&(ctx->client_CA),x));
300 static int name_cmp(X509_NAME **a,X509_NAME **b)
302 return(X509_NAME_cmp(*a,*b));
307 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
308 * it doesn't really have anything to do with clients (except that a common use
309 * for a stack of CAs is to send it to the client). Actually, it doesn't have
310 * much to do with CAs, either, since it will load any old cert.
311 * \param file the file containing one or more certs.
312 * \return a ::STACK containing the certs.
314 STACK *SSL_load_client_CA_file(char *file)
324 in=BIO_new(BIO_s_file_internal());
326 if ((ret == NULL) || (sk == NULL) || (in == NULL))
328 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE);
332 if (!BIO_read_filename(in,file))
337 if (PEM_read_bio_X509(in,&x,NULL) == NULL)
339 if ((xn=X509_get_subject_name(x)) == NULL) goto err;
340 /* check for duplicates */
341 xn=X509_NAME_dup(xn);
342 if (xn == NULL) goto err;
343 if (sk_find(sk,(char *)xn) >= 0)
347 sk_push(sk,(char *)xn);
348 sk_push(ret,(char *)xn);
355 if (ret != NULL) sk_pop_free(ret,X509_NAME_free);
358 if (sk != NULL) sk_free(sk);
359 if (in != NULL) BIO_free(in);
360 if (x != NULL) X509_free(x);
366 * Add a file of certs to a stack.
367 * \param stack the stack to add to.
368 * \param file the file to add from. All certs in this file that are not
369 * already in the stack will be added.
370 * \return 1 for success, 0 for failure. Note that in the case of failure some
371 * certs may have been added to \c stack.
374 int SSL_add_cert_file_to_stack(STACK *stack,const char *file)
382 oldcmp=sk_set_cmp_func(stack,name_cmp);
384 in=BIO_new(BIO_s_file_internal());
388 SSLerr(SSL_F_SSL_ADD_CERT_FILE_TO_STACK,ERR_R_MALLOC_FAILURE);
392 if (!BIO_read_filename(in,file))
397 if (PEM_read_bio_X509(in,&x,NULL) == NULL)
399 if ((xn=X509_get_subject_name(x)) == NULL) goto err;
400 xn=X509_NAME_dup(xn);
401 if (xn == NULL) goto err;
402 if (sk_find(stack,(char *)xn) >= 0)
405 sk_push(stack,(char *)xn);
418 sk_set_cmp_func(stack,oldcmp);
424 * Add a directory of certs to a stack.
425 * \param stack the stack to append to.
426 * \param dir the directory to append from. All files in this directory will be
427 * examined as potential certs. Any that are acceptable to
428 * SSL_add_cert_file_to_stack() that are not already in the stack will be
430 * \return 1 for success, 0 for failure. Note that in the case of failure some
431 * certs may have been added to \c stack.
436 int SSL_add_cert_dir_to_stack(STACK *stack,const char *dir)
439 struct dirent *dstruct;
441 /* Note that a side effect is that the CAs will be sorted by name */
444 SSLerr(SSL_F_SSL_ADD_CERT_DIR_TO_STACK,ERR_R_MALLOC_FAILURE);
448 while((dstruct=readdir(d)))
452 if(strlen(dir)+strlen(dstruct->d_name)+2 > sizeof buf)
454 SSLerr(SSL_F_SSL_ADD_CERT_DIR_TO_STACK,SSL_R_PATH_TOO_LONG);
458 sprintf(buf,"%s/%s",dir,dstruct->d_name);
459 if(!SSL_add_cert_file_to_stack(stack,buf))