[thirdparty/openssl.git] / crypto / asn1 / x_x509.c

/* crypto/asn1/x_x509.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 "cryptlib.h"
#include <openssl/evp.h>
#include <openssl/asn1_mac.h>
#include <openssl/x509.h>

static int x509_meth_num = 0;
static STACK_OF(CRYPTO_EX_DATA_FUNCS) *x509_meth = NULL;

static ASN1_METHOD meth={
	(int (*)())  i2d_X509,
	(char *(*)())d2i_X509,
	(char *(*)())X509_new,
	(void (*)()) X509_free};

ASN1_METHOD *X509_asn1_meth(void)
	{
	return(&meth);
	}

int i2d_X509(X509 *a, unsigned char **pp)
	{
	M_ASN1_I2D_vars(a);

	M_ASN1_I2D_len(a->cert_info,	i2d_X509_CINF);
	M_ASN1_I2D_len(a->sig_alg,	i2d_X509_ALGOR);
	M_ASN1_I2D_len(a->signature,	i2d_ASN1_BIT_STRING);

	M_ASN1_I2D_seq_total();

	M_ASN1_I2D_put(a->cert_info,	i2d_X509_CINF);
	M_ASN1_I2D_put(a->sig_alg,	i2d_X509_ALGOR);
	M_ASN1_I2D_put(a->signature,	i2d_ASN1_BIT_STRING);

	M_ASN1_I2D_finish();
	}

X509 *d2i_X509(X509 **a, unsigned char **pp, long length)
	{
	M_ASN1_D2I_vars(a,X509 *,X509_new);

	M_ASN1_D2I_Init();
	M_ASN1_D2I_start_sequence();
	M_ASN1_D2I_get(ret->cert_info,d2i_X509_CINF);
	M_ASN1_D2I_get(ret->sig_alg,d2i_X509_ALGOR);
	M_ASN1_D2I_get(ret->signature,d2i_ASN1_BIT_STRING);
	if (ret->name != NULL) Free(ret->name);
	ret->name=X509_NAME_oneline(ret->cert_info->subject,NULL,0);

	M_ASN1_D2I_Finish(a,X509_free,ASN1_F_D2I_X509);
	}

X509 *X509_new(void)
	{
	X509 *ret=NULL;
	ASN1_CTX c;

	M_ASN1_New_Malloc(ret,X509);
	ret->references=1;
	ret->valid=0;
	ret->ex_flags = 0;
	ret->name=NULL;
	ret->aux=NULL;
	M_ASN1_New(ret->cert_info,X509_CINF_new);
	M_ASN1_New(ret->sig_alg,X509_ALGOR_new);
	M_ASN1_New(ret->signature,M_ASN1_BIT_STRING_new);
	CRYPTO_new_ex_data(x509_meth, ret, &ret->ex_data);
	return(ret);
	M_ASN1_New_Error(ASN1_F_X509_NEW);
	}

void X509_free(X509 *a)
	{
	int i;

	if (a == NULL) return;

	i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_X509);
#ifdef REF_PRINT
	REF_PRINT("X509",a);
#endif
	if (i > 0) return;
#ifdef REF_CHECK
	if (i < 0)
		{
		fprintf(stderr,"X509_free, bad reference count\n");
		abort();
		}
#endif

	CRYPTO_free_ex_data(x509_meth,a,&a->ex_data);
	X509_CINF_free(a->cert_info);
	X509_ALGOR_free(a->sig_alg);
	M_ASN1_BIT_STRING_free(a->signature);
	X509_CERT_AUX_free(a->aux);

	if (a->name != NULL) Free(a->name);
	Free(a);
	}

int X509_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
	     CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
        {
	x509_meth_num++;
	return(CRYPTO_get_ex_new_index(x509_meth_num-1,
		&x509_meth,argl,argp,new_func,dup_func,free_func));
        }

int X509_set_ex_data(X509 *r, int idx, void *arg)
	{
	return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
	}

void *X509_get_ex_data(X509 *r, int idx)
	{
	return(CRYPTO_get_ex_data(&r->ex_data,idx));
	}

/* X509_AUX ASN1 routines. X509_AUX is the name given to
 * a certificate with extra info tagged on the end. Since these
 * functions set how a certificate is trusted they should only
 * be used when the certificate comes from a reliable source
 * such as local storage.
 *
 */

X509 *d2i_X509_AUX(X509 **a, unsigned char **pp, long length)
{
	unsigned char *q;
	X509 *ret;
	/* Save start position */
	q = *pp;
	ret = d2i_X509(a, pp, length);
	/* If certificate unreadable then forget it */
	if(!ret) return NULL;
	/* update length */
	length -= *pp - q;
	if(!length) return ret;
	if(!d2i_X509_CERT_AUX(&ret->aux, pp, length)) goto err;
	return ret;
	err:
	X509_free(ret);
	return NULL;
}

int i2d_X509_AUX(X509 *a, unsigned char **pp)
{
	int length;
	length = i2d_X509(a, pp);
	if(a) length += i2d_X509_CERT_AUX(a->aux, pp);
	return length;
}
Commit	Line	Data
d02b48c6	1	/* crypto/asn1/x_x509.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 "cryptlib.h"
ec577822 BM	61	#include <openssl/evp.h>
ec577822 BM	62	#include <openssl/asn1_mac.h>
f0e8ae72	63	#include <openssl/x509.h>
d02b48c6	64
56a3fec1	65	static int x509_meth_num = 0;
dd9d233e	66	static STACK_OF(CRYPTO_EX_DATA_FUNCS) *x509_meth = NULL;
56a3fec1	67
d02b48c6 RE	68	static ASN1_METHOD meth={
	69	(int (*)()) i2d_X509,
	70	(char ()())d2i_X509,
	71	(char ()())X509_new,
	72	(void (*)()) X509_free};
	73
6b691a5c	74	ASN1_METHOD *X509_asn1_meth(void)
d02b48c6 RE	75	{
	76	return(&meth);
	77	}
	78
6b691a5c	79	int i2d_X509(X509 a, unsigned char *pp)
d02b48c6 RE	80	{
	81	M_ASN1_I2D_vars(a);
	82
	83	M_ASN1_I2D_len(a->cert_info, i2d_X509_CINF);
	84	M_ASN1_I2D_len(a->sig_alg, i2d_X509_ALGOR);
	85	M_ASN1_I2D_len(a->signature, i2d_ASN1_BIT_STRING);
	86
	87	M_ASN1_I2D_seq_total();
	88
	89	M_ASN1_I2D_put(a->cert_info, i2d_X509_CINF);
	90	M_ASN1_I2D_put(a->sig_alg, i2d_X509_ALGOR);
	91	M_ASN1_I2D_put(a->signature, i2d_ASN1_BIT_STRING);
	92
	93	M_ASN1_I2D_finish();
	94	}
	95
6b691a5c	96	X509 d2i_X509(X509 a, unsigned char *pp, long length)
d02b48c6 RE	97	{
	98	M_ASN1_D2I_vars(a,X509 *,X509_new);
	99
	100	M_ASN1_D2I_Init();
	101	M_ASN1_D2I_start_sequence();
	102	M_ASN1_D2I_get(ret->cert_info,d2i_X509_CINF);
	103	M_ASN1_D2I_get(ret->sig_alg,d2i_X509_ALGOR);
	104	M_ASN1_D2I_get(ret->signature,d2i_ASN1_BIT_STRING);
e778802f BL	105	if (ret->name != NULL) Free(ret->name);
e778802f BL	106	ret->name=X509_NAME_oneline(ret->cert_info->subject,NULL,0);
d02b48c6 RE	107
	108	M_ASN1_D2I_Finish(a,X509_free,ASN1_F_D2I_X509);
	109	}
	110
6b691a5c	111	X509 *X509_new(void)
d02b48c6 RE	112	{
d02b48c6 RE	113	X509 *ret=NULL;
dfeab068	114	ASN1_CTX c;
d02b48c6 RE	115
	116	M_ASN1_New_Malloc(ret,X509);
	117	ret->references=1;
	118	ret->valid=0;
673b102c	119	ret->ex_flags = 0;
d02b48c6	120	ret->name=NULL;
ce1b4fe1	121	ret->aux=NULL;
d02b48c6 RE	122	M_ASN1_New(ret->cert_info,X509_CINF_new);
d02b48c6 RE	123	M_ASN1_New(ret->sig_alg,X509_ALGOR_new);
08e9c1af	124	M_ASN1_New(ret->signature,M_ASN1_BIT_STRING_new);
dd9d233e	125	CRYPTO_new_ex_data(x509_meth, ret, &ret->ex_data);
d02b48c6 RE	126	return(ret);
	127	M_ASN1_New_Error(ASN1_F_X509_NEW);
	128	}
	129
6b691a5c	130	void X509_free(X509 *a)
d02b48c6 RE	131	{
	132	int i;
	133
	134	if (a == NULL) return;
	135
	136	i=CRYPTO_add(&a->references,-1,CRYPTO_LOCK_X509);
58964a49 RE	137	#ifdef REF_PRINT
	138	REF_PRINT("X509",a);
	139	#endif
d02b48c6 RE	140	if (i > 0) return;
	141	#ifdef REF_CHECK
	142	if (i < 0)
	143	{
	144	fprintf(stderr,"X509_free, bad reference count\n");
	145	abort();
	146	}
	147	#endif
	148
dd9d233e	149	CRYPTO_free_ex_data(x509_meth,a,&a->ex_data);
d02b48c6 RE	150	X509_CINF_free(a->cert_info);
d02b48c6 RE	151	X509_ALGOR_free(a->sig_alg);
08e9c1af	152	M_ASN1_BIT_STRING_free(a->signature);
ce1b4fe1	153	X509_CERT_AUX_free(a->aux);
dfeab068	154
d02b48c6	155	if (a->name != NULL) Free(a->name);
51ca375e	156	Free(a);
d02b48c6 RE	157	}
d02b48c6 RE	158
dd9d233e DSH	159	int X509_get_ex_new_index(long argl, void argp, CRYPTO_EX_new new_func,
dd9d233e DSH	160	CRYPTO_EX_dup dup_func, CRYPTO_EX_free free_func)
56a3fec1 DSH	161	{
	162	x509_meth_num++;
	163	return(CRYPTO_get_ex_new_index(x509_meth_num-1,
	164	&x509_meth,argl,argp,new_func,dup_func,free_func));
	165	}
	166
dd9d233e	167	int X509_set_ex_data(X509 r, int idx, void arg)
56a3fec1 DSH	168	{
	169	return(CRYPTO_set_ex_data(&r->ex_data,idx,arg));
	170	}
	171
dd9d233e	172	void X509_get_ex_data(X509 r, int idx)
56a3fec1 DSH	173	{
	174	return(CRYPTO_get_ex_data(&r->ex_data,idx));
	175	}
	176
ce1b4fe1 DSH	177	/* X509_AUX ASN1 routines. X509_AUX is the name given to
	178	* a certificate with extra info tagged on the end. Since these
	179	* functions set how a certificate is trusted they should only
	180	* be used when the certificate comes from a reliable source
	181	* such as local storage.
	182	*
	183	*/
	184
	185	X509 d2i_X509_AUX(X509 a, unsigned char *pp, long length)
	186	{
	187	unsigned char *q;
	188	X509 *ret;
	189	/* Save start position */
	190	q = *pp;
	191	ret = d2i_X509(a, pp, length);
	192	/* If certificate unreadable then forget it */
	193	if(!ret) return NULL;
	194	/* update length */
	195	length -= *pp - q;
	196	if(!length) return ret;
	197	if(!d2i_X509_CERT_AUX(&ret->aux, pp, length)) goto err;
	198	return ret;
	199	err:
	200	X509_free(ret);
	201	return NULL;
	202	}
	203
	204	int i2d_X509_AUX(X509 a, unsigned char *pp)
	205	{
	206	int length;
	207	length = i2d_X509(a, pp);
	208	if(a) length += i2d_X509_CERT_AUX(a->aux, pp);
	209	return length;
	210	}