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>
64 #include <openssl/objects.h>
65 #include <openssl/bio.h>
66 #include <openssl/pem.h>
69 int SSL_get_ex_data_X509_STORE_CTX_idx(void)
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);
81 CERT *ssl_cert_new(void)
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_X509_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_OF(X509) *sk)
183 if ((sk == NULL) || (sk_X509_num(sk) == 0))
186 x=sk_X509_value(sk,0);
187 X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk);
188 if (SSL_get_verify_depth(s) >= 0)
189 X509_STORE_CTX_set_depth(&ctx, SSL_get_verify_depth(s));
190 X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),
193 if (s->ctx->app_verify_callback != NULL)
194 i=s->ctx->app_verify_callback(&ctx);
197 #ifndef NO_X509_VERIFY
198 i=X509_verify_cert(&ctx);
201 ctx.error=X509_V_ERR_APPLICATION_VERIFICATION;
202 SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_NO_VERIFY_CALLBACK);
206 s->verify_result=ctx.error;
207 X509_STORE_CTX_cleanup(&ctx);
212 static void set_client_CA_list(STACK_OF(X509_NAME) **ca_list,STACK_OF(X509_NAME) *list)
214 if (*ca_list != NULL)
215 sk_X509_NAME_pop_free(*ca_list,X509_NAME_free);
220 STACK *SSL_dup_CA_list(STACK *sk)
227 for (i=0; i<sk_num(sk); i++)
229 name=X509_NAME_dup((X509_NAME *)sk_value(sk,i));
230 if ((name == NULL) || !sk_push(ret,(char *)name))
232 sk_pop_free(ret,X509_NAME_free);
239 void SSL_set_client_CA_list(SSL *s,STACK_OF(X509_NAME) *list)
241 set_client_CA_list(&(s->client_CA),list);
244 void SSL_CTX_set_client_CA_list(SSL_CTX *ctx,STACK_OF(X509_NAME) *list)
246 set_client_CA_list(&(ctx->client_CA),list);
249 STACK_OF(X509_NAME) *SSL_CTX_get_client_CA_list(SSL_CTX *ctx)
251 return(ctx->client_CA);
254 STACK_OF(X509_NAME) *SSL_get_client_CA_list(SSL *s)
256 if (s->type == SSL_ST_CONNECT)
257 { /* we are in the client */
258 if (((s->version>>8) == SSL3_VERSION_MAJOR) &&
260 return(s->s3->tmp.ca_names);
266 if (s->client_CA != NULL)
267 return(s->client_CA);
269 return(s->ctx->client_CA);
273 static int add_client_CA(STACK_OF(X509_NAME) **sk,X509 *x)
277 if (x == NULL) return(0);
278 if ((*sk == NULL) && ((*sk=sk_X509_NAME_new_null()) == NULL))
281 if ((name=X509_NAME_dup(X509_get_subject_name(x))) == NULL)
284 if (!sk_X509_NAME_push(*sk,name))
286 X509_NAME_free(name);
292 int SSL_add_client_CA(SSL *ssl,X509 *x)
294 return(add_client_CA(&(ssl->client_CA),x));
297 int SSL_CTX_add_client_CA(SSL_CTX *ctx,X509 *x)
299 return(add_client_CA(&(ctx->client_CA),x));
302 static int name_cmp(X509_NAME **a,X509_NAME **b)
304 return(X509_NAME_cmp(*a,*b));
309 * Load CA certs from a file into a ::STACK. Note that it is somewhat misnamed;
310 * it doesn't really have anything to do with clients (except that a common use
311 * for a stack of CAs is to send it to the client). Actually, it doesn't have
312 * much to do with CAs, either, since it will load any old cert.
313 * \param file the file containing one or more certs.
314 * \return a ::STACK containing the certs.
316 STACK_OF(X509_NAME) *SSL_load_client_CA_file(const char *file)
321 STACK_OF(X509_NAME) *ret,*sk;
323 ret=sk_X509_NAME_new(NULL);
324 sk=sk_X509_NAME_new(name_cmp);
326 in=BIO_new(BIO_s_file_internal());
328 if ((ret == NULL) || (sk == NULL) || (in == NULL))
330 SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE);
334 if (!BIO_read_filename(in,file))
339 if (PEM_read_bio_X509(in,&x,NULL) == NULL)
341 if ((xn=X509_get_subject_name(x)) == NULL) goto err;
342 /* check for duplicates */
343 xn=X509_NAME_dup(xn);
344 if (xn == NULL) goto err;
345 if (sk_X509_NAME_find(sk,xn) >= 0)
349 sk_X509_NAME_push(sk,xn);
350 sk_X509_NAME_push(ret,xn);
357 if (ret != NULL) sk_X509_NAME_pop_free(ret,X509_NAME_free);
360 if (sk != NULL) sk_X509_NAME_free(sk);
361 if (in != NULL) BIO_free(in);
362 if (x != NULL) X509_free(x);
368 * Add a file of certs to a stack.
369 * \param stack the stack to add to.
370 * \param file the file to add from. All certs in this file that are not
371 * already in the stack will be added.
372 * \return 1 for success, 0 for failure. Note that in the case of failure some
373 * certs may have been added to \c stack.
376 int SSL_add_file_cert_subjects_to_stack(STACK *stack,const char *file)
384 oldcmp=sk_set_cmp_func(stack,name_cmp);
386 in=BIO_new(BIO_s_file_internal());
390 SSLerr(SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK,ERR_R_MALLOC_FAILURE);
394 if (!BIO_read_filename(in,file))
399 if (PEM_read_bio_X509(in,&x,NULL) == NULL)
401 if ((xn=X509_get_subject_name(x)) == NULL) goto err;
402 xn=X509_NAME_dup(xn);
403 if (xn == NULL) goto err;
404 if (sk_find(stack,(char *)xn) >= 0)
407 sk_push(stack,(char *)xn);
420 sk_set_cmp_func(stack,oldcmp);
426 * Add a directory of certs to a stack.
427 * \param stack the stack to append to.
428 * \param dir the directory to append from. All files in this directory will be
429 * examined as potential certs. Any that are acceptable to
430 * SSL_add_dir_cert_subjects_to_stack() that are not already in the stack will be
432 * \return 1 for success, 0 for failure. Note that in the case of failure some
433 * certs may have been added to \c stack.
438 int SSL_add_dir_cert_subjects_to_stack(STACK *stack,const char *dir)
441 struct dirent *dstruct;
443 /* Note that a side effect is that the CAs will be sorted by name */
446 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,ERR_R_MALLOC_FAILURE);
450 while((dstruct=readdir(d)))
454 if(strlen(dir)+strlen(dstruct->d_name)+2 > sizeof buf)
456 SSLerr(SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK,SSL_R_PATH_TOO_LONG);
460 sprintf(buf,"%s/%s",dir,dstruct->d_name);
461 if(!SSL_add_file_cert_subjects_to_stack(stack,buf))