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_file_cert_subjects_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_FILE_CERT_SUBJECTS_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_dir_cert_subjects_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_DIR_CERT_SUBJECTS_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_DIR_CERT_SUBJECTS_TO_STACK
,SSL_R_PATH_TOO_LONG
);
458 sprintf(buf
,"%s/%s",dir
,dstruct
->d_name
);
459 if(!SSL_add_file_cert_subjects_to_stack(stack
,buf
))