ssl_cert.c
/* ssl/ssl_cert.c */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
#include <stdio.h>
#include "objects.h"
#include "bio.h"
#include "pem.h"
#include "ssl_locl.h"
int SSL_get_ex_data_X509_STORE_CTX_idx()
{
static int ssl_x509_store_ctx_idx= -1;
if (ssl_x509_store_ctx_idx < 0)
{
ssl_x509_store_ctx_idx=X509_STORE_CTX_get_ex_new_index(
0,"SSL for verifiy callback",NULL,NULL,NULL);
}
return(ssl_x509_store_ctx_idx);
}
CERT *ssl_cert_new()
{
CERT *ret;
ret=(CERT *)Malloc(sizeof(CERT));
if (ret == NULL)
{
SSLerr(SSL_F_SSL_CERT_NEW,ERR_R_MALLOC_FAILURE);
return(NULL);
}
memset(ret,0,sizeof(CERT));
/*
ret->valid=0;
ret->mask=0;
ret->export_mask=0;
ret->cert_type=0;
ret->key->x509=NULL;
ret->key->publickey=NULL;
ret->key->privatekey=NULL; */
ret->key= &(ret->pkeys[SSL_PKEY_RSA_ENC]);
ret->references=1;
return(ret);
}
void ssl_cert_free(c)
CERT *c;
{
int i;
i=CRYPTO_add(&c->references,-1,CRYPTO_LOCK_SSL_CERT);
#ifdef REF_PRINT
REF_PRINT("CERT",c);
#endif
if (i > 0) return;
#ifdef REF_CHECK
if (i < 0)
{
fprintf(stderr,"ssl_cert_free, bad reference count\n");
abort(); /* ok */
}
#endif
#ifndef NO_RSA
if (c->rsa_tmp) RSA_free(c->rsa_tmp);
#endif
#ifndef NO_DH
if (c->dh_tmp) DH_free(c->dh_tmp);
#endif
for (i=0; i<SSL_PKEY_NUM; i++)
{
if (c->pkeys[i].x509 != NULL)
X509_free(c->pkeys[i].x509);
if (c->pkeys[i].privatekey != NULL)
EVP_PKEY_free(c->pkeys[i].privatekey);
#if 0
if (c->pkeys[i].publickey != NULL)
EVP_PKEY_free(c->pkeys[i].publickey);
#endif
}
if (c->cert_chain != NULL)
sk_pop_free(c->cert_chain,X509_free);
Free(c);
}
int ssl_set_cert_type(c, type)
CERT *c;
int type;
{
c->cert_type=type;
return(1);
}
int ssl_verify_cert_chain(s,sk)
SSL *s;
STACK *sk;
{
X509 *x;
int i;
X509_STORE_CTX ctx;
if ((sk == NULL) || (sk_num(sk) == 0))
return(0);
x=(X509 *)sk_value(sk,0);
X509_STORE_CTX_init(&ctx,s->ctx->cert_store,x,sk);
X509_STORE_CTX_set_ex_data(&ctx,SSL_get_ex_data_X509_STORE_CTX_idx(),
(char *)s);
if (s->ctx->app_verify_callback != NULL)
i=s->ctx->app_verify_callback(&ctx);
else
{
#ifndef NO_X509_VERIFY
i=X509_verify_cert(&ctx);
#else
i=0;
ctx.error=X509_V_ERR_APPLICATION_VERIFICATION;
SSLerr(SSL_F_SSL_VERIFY_CERT_CHAIN,SSL_R_NO_VERIFY_CALLBACK);
#endif
}
s->verify_result=ctx.error;
X509_STORE_CTX_cleanup(&ctx);
return(i);
}
static void set_client_CA_list(ca_list,list)
STACK **ca_list;
STACK *list;
{
if (*ca_list != NULL)
sk_pop_free(*ca_list,X509_NAME_free);
*ca_list=list;
}
STACK *SSL_dup_CA_list(sk)
STACK *sk;
{
int i;
STACK *ret;
X509_NAME *name;
ret=sk_new_null();
for (i=0; i<sk_num(sk); i++)
{
name=X509_NAME_dup((X509_NAME *)sk_value(sk,i));
if ((name == NULL) || !sk_push(ret,(char *)name))
{
sk_pop_free(ret,X509_NAME_free);
return(NULL);
}
}
return(ret);
}
void SSL_set_client_CA_list(s,list)
SSL *s;
STACK *list;
{
set_client_CA_list(&(s->client_CA),list);
}
void SSL_CTX_set_client_CA_list(ctx,list)
SSL_CTX *ctx;
STACK *list;
{
set_client_CA_list(&(ctx->client_CA),list);
}
STACK *SSL_CTX_get_client_CA_list(ctx)
SSL_CTX *ctx;
{
return(ctx->client_CA);
}
STACK *SSL_get_client_CA_list(s)
SSL *s;
{
if (s->type == SSL_ST_CONNECT)
{ /* we are in the client */
if (((s->version>>8) == SSL3_VERSION_MAJOR) &&
(s->s3 != NULL))
return(s->s3->tmp.ca_names);
else
return(NULL);
}
else
{
if (s->client_CA != NULL)
return(s->client_CA);
else
return(s->ctx->client_CA);
}
}
static int add_client_CA(sk,x)
STACK **sk;
X509 *x;
{
X509_NAME *name;
if (x == NULL) return(0);
if ((*sk == NULL) && ((*sk=sk_new_null()) == NULL))
return(0);
if ((name=X509_NAME_dup(X509_get_subject_name(x))) == NULL)
return(0);
if (!sk_push(*sk,(char *)name))
{
X509_NAME_free(name);
return(0);
}
return(1);
}
int SSL_add_client_CA(ssl,x)
SSL *ssl;
X509 *x;
{
return(add_client_CA(&(ssl->client_CA),x));
}
int SSL_CTX_add_client_CA(ctx,x)
SSL_CTX *ctx;
X509 *x;
{
return(add_client_CA(&(ctx->client_CA),x));
}
static int name_cmp(a,b)
X509_NAME **a,**b;
{
return(X509_NAME_cmp(*a,*b));
}
#ifndef NO_STDIO
STACK *SSL_load_client_CA_file(file)
char *file;
{
BIO *in;
X509 *x=NULL;
X509_NAME *xn=NULL;
STACK *ret,*sk;
ret=sk_new(NULL);
sk=sk_new(name_cmp);
in=BIO_new(BIO_s_file_internal());
if ((ret == NULL) || (sk == NULL) || (in == NULL))
{
SSLerr(SSL_F_SSL_LOAD_CLIENT_CA_FILE,ERR_R_MALLOC_FAILURE);
goto err;
}
if (!BIO_read_filename(in,file))
goto err;
for (;;)
{
if (PEM_read_bio_X509(in,&x,NULL) == NULL)
break;
if ((xn=X509_get_subject_name(x)) == NULL) goto err;
/* check for duplicates */
xn=X509_NAME_dup(xn);
if (xn == NULL) goto err;
if (sk_find(sk,(char *)xn) >= 0)
X509_NAME_free(xn);
else
{
sk_push(sk,(char *)xn);
sk_push(ret,(char *)xn);
}
}
if (0)
{
err:
if (ret != NULL) sk_pop_free(ret,X509_NAME_free);
ret=NULL;
}
if (sk != NULL) sk_free(sk);
if (in != NULL) BIO_free(in);
if (x != NULL) X509_free(x);
return(ret);
}
#endif
