[thirdparty/openssl.git] / crypto / pkcs7 / pk7_lib.c

/* crypto/pkcs7/pk7_lib.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/objects.h>
#include <openssl/x509.h>

long PKCS7_ctrl(PKCS7 *p7, int cmd, long larg, char *parg)
	{
	int nid;
	long ret;

	nid=OBJ_obj2nid(p7->type);

	switch (cmd)
		{
	case PKCS7_OP_SET_DETACHED_SIGNATURE:
		if (nid == NID_pkcs7_signed)
			{
			ret=p7->detached=(int)larg;
			}
		else
			{
			PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
			ret=0;
			}
		break;
	case PKCS7_OP_GET_DETACHED_SIGNATURE:
		if (nid == NID_pkcs7_signed)
			{
			if(!p7->d.sign  || !p7->d.sign->contents->d.ptr)
				ret = 1;
			else ret = 0;
				
			p7->detached = ret;
			}
		else
			{
			PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
			ret=0;
			}
			
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_UNKNOWN_OPERATION);
		ret=0;
		}
	return(ret);
	}

int PKCS7_content_new(PKCS7 *p7, int type)
	{
	PKCS7 *ret=NULL;

	if ((ret=PKCS7_new()) == NULL) goto err;
	if (!PKCS7_set_type(ret,type)) goto err;
	if (!PKCS7_set_content(p7,ret)) goto err;

	return(1);
err:
	if (ret != NULL) PKCS7_free(ret);
	return(0);
	}

int PKCS7_set_content(PKCS7 *p7, PKCS7 *p7_data)
	{
	int i;

	i=OBJ_obj2nid(p7->type);
	switch (i)
		{
	case NID_pkcs7_signed:
		if (p7->d.sign->contents != NULL)
			PKCS7_free(p7->d.sign->contents);
		p7->d.sign->contents=p7_data;
		break;
	case NID_pkcs7_digest:
	case NID_pkcs7_data:
	case NID_pkcs7_enveloped:
	case NID_pkcs7_signedAndEnveloped:
	case NID_pkcs7_encrypted:
	default:
		PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
		goto err;
		}
	return(1);
err:
	return(0);
	}

int PKCS7_set_type(PKCS7 *p7, int type)
	{
	ASN1_OBJECT *obj;

	/*PKCS7_content_free(p7);*/
	obj=OBJ_nid2obj(type); /* will not fail */

	switch (type)
		{
	case NID_pkcs7_signed:
		p7->type=obj;
		if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL)
			goto err;
		ASN1_INTEGER_set(p7->d.sign->version,1);
		break;
	case NID_pkcs7_data:
		p7->type=obj;
		if ((p7->d.data=M_ASN1_OCTET_STRING_new()) == NULL)
			goto err;
		break;
	case NID_pkcs7_signedAndEnveloped:
		p7->type=obj;
		if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new())
			== NULL) goto err;
		ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1);
		break;
	case NID_pkcs7_enveloped:
		p7->type=obj;
		if ((p7->d.enveloped=PKCS7_ENVELOPE_new())
			== NULL) goto err;
		ASN1_INTEGER_set(p7->d.enveloped->version,0);
		break;
	case NID_pkcs7_encrypted:
		p7->type=obj;
		if ((p7->d.encrypted=PKCS7_ENCRYPT_new())
			== NULL) goto err;
		ASN1_INTEGER_set(p7->d.encrypted->version,0);
		break;

	case NID_pkcs7_digest:
	default:
		PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
		goto err;
		}
	return(1);
err:
	return(0);
	}

int PKCS7_add_signer(PKCS7 *p7, PKCS7_SIGNER_INFO *psi)
	{
	int i,j,nid;
	X509_ALGOR *alg;
	STACK_OF(PKCS7_SIGNER_INFO) *signer_sk;
	STACK_OF(X509_ALGOR) *md_sk;

	i=OBJ_obj2nid(p7->type);
	switch (i)
		{
	case NID_pkcs7_signed:
		signer_sk=	p7->d.sign->signer_info;
		md_sk=		p7->d.sign->md_algs;
		break;
	case NID_pkcs7_signedAndEnveloped:
		signer_sk=	p7->d.signed_and_enveloped->signer_info;
		md_sk=		p7->d.signed_and_enveloped->md_algs;
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE);
		return(0);
		}

	nid=OBJ_obj2nid(psi->digest_alg->algorithm);

	/* If the digest is not currently listed, add it */
	j=0;
	for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
		{
		alg=sk_X509_ALGOR_value(md_sk,i);
		if (OBJ_obj2nid(alg->algorithm) == nid)
			{
			j=1;
			break;
			}
		}
	if (!j) /* we need to add another algorithm */
		{
		if(!(alg=X509_ALGOR_new())
			|| !(alg->parameter = ASN1_TYPE_new())) {
			PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);
			return(0);
		}
		alg->algorithm=OBJ_nid2obj(nid);
		alg->parameter->type = V_ASN1_NULL;
		sk_X509_ALGOR_push(md_sk,alg);
		}

	sk_PKCS7_SIGNER_INFO_push(signer_sk,psi);
	return(1);
	}

int PKCS7_add_certificate(PKCS7 *p7, X509 *x509)
	{
	int i;
	STACK_OF(X509) **sk;

	i=OBJ_obj2nid(p7->type);
	switch (i)
		{
	case NID_pkcs7_signed:
		sk= &(p7->d.sign->cert);
		break;
	case NID_pkcs7_signedAndEnveloped:
		sk= &(p7->d.signed_and_enveloped->cert);
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
		return(0);
		}

	if (*sk == NULL)
		*sk=sk_X509_new_null();
	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
	sk_X509_push(*sk,x509);
	return(1);
	}

int PKCS7_add_crl(PKCS7 *p7, X509_CRL *crl)
	{
	int i;
	STACK_OF(X509_CRL) **sk;

	i=OBJ_obj2nid(p7->type);
	switch (i)
		{
	case NID_pkcs7_signed:
		sk= &(p7->d.sign->crl);
		break;
	case NID_pkcs7_signedAndEnveloped:
		sk= &(p7->d.signed_and_enveloped->crl);
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
		return(0);
		}

	if (*sk == NULL)
		*sk=sk_X509_CRL_new_null();

	CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
	sk_X509_CRL_push(*sk,crl);
	return(1);
	}

int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO *p7i, X509 *x509, EVP_PKEY *pkey,
	     EVP_MD *dgst)
	{
	char is_dsa;
	if (pkey->type == EVP_PKEY_DSA) is_dsa = 1;
	else is_dsa = 0;
	/* We now need to add another PKCS7_SIGNER_INFO entry */
	ASN1_INTEGER_set(p7i->version,1);
	X509_NAME_set(&p7i->issuer_and_serial->issuer,
		X509_get_issuer_name(x509));

	/* because ASN1_INTEGER_set is used to set a 'long' we will do
	 * things the ugly way. */
	M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
	p7i->issuer_and_serial->serial=
		M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));

	/* lets keep the pkey around for a while */
	CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
	p7i->pkey=pkey;

	/* Set the algorithms */
	if (is_dsa) p7i->digest_alg->algorithm=OBJ_nid2obj(NID_sha1);
	else	
		p7i->digest_alg->algorithm=OBJ_nid2obj(EVP_MD_type(dgst));

	if (p7i->digest_alg->parameter != NULL)
		ASN1_TYPE_free(p7i->digest_alg->parameter);
	if ((p7i->digest_alg->parameter=ASN1_TYPE_new()) == NULL)
		goto err;
	p7i->digest_alg->parameter->type=V_ASN1_NULL;

	p7i->digest_enc_alg->algorithm=OBJ_nid2obj(EVP_PKEY_type(pkey->type));

	if (p7i->digest_enc_alg->parameter != NULL)
		ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
	if(is_dsa) p7i->digest_enc_alg->parameter = NULL;
	else {
		if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
			goto err;
		p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
	}

	return(1);
err:
	return(0);
	}

PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
	     EVP_MD *dgst)
	{
	PKCS7_SIGNER_INFO *si;

	if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
	if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
	if (!PKCS7_add_signer(p7,si)) goto err;
	return(si);
err:
	return(NULL);
	}

STACK_OF(PKCS7_SIGNER_INFO) *PKCS7_get_signer_info(PKCS7 *p7)
	{
	if (PKCS7_type_is_signed(p7))
		{
		return(p7->d.sign->signer_info);
		}
	else if (PKCS7_type_is_signedAndEnveloped(p7))
		{
		return(p7->d.signed_and_enveloped->signer_info);
		}
	else
		return(NULL);
	}

PKCS7_RECIP_INFO *PKCS7_add_recipient(PKCS7 *p7, X509 *x509)
	{
	PKCS7_RECIP_INFO *ri;

	if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
	if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
	if (!PKCS7_add_recipient_info(p7,ri)) goto err;
	return(ri);
err:
	return(NULL);
	}

int PKCS7_add_recipient_info(PKCS7 *p7, PKCS7_RECIP_INFO *ri)
	{
	int i;
	STACK_OF(PKCS7_RECIP_INFO) *sk;

	i=OBJ_obj2nid(p7->type);
	switch (i)
		{
	case NID_pkcs7_signedAndEnveloped:
		sk=	p7->d.signed_and_enveloped->recipientinfo;
		break;
	case NID_pkcs7_enveloped:
		sk=	p7->d.enveloped->recipientinfo;
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
		return(0);
		}

	sk_PKCS7_RECIP_INFO_push(sk,ri);
	return(1);
	}

int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO *p7i, X509 *x509)
	{
	ASN1_INTEGER_set(p7i->version,0);
	X509_NAME_set(&p7i->issuer_and_serial->issuer,
		X509_get_issuer_name(x509));

	M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
	p7i->issuer_and_serial->serial=
		M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));

	X509_ALGOR_free(p7i->key_enc_algor);
	p7i->key_enc_algor= X509_ALGOR_dup(x509->cert_info->key->algor);

	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
	p7i->cert=x509;

	return(1);
	}

X509 *PKCS7_cert_from_signer_info(PKCS7 *p7, PKCS7_SIGNER_INFO *si)
	{
	if (PKCS7_type_is_signed(p7))
		return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
			si->issuer_and_serial->issuer,
			si->issuer_and_serial->serial));
	else
		return(NULL);
	}

int PKCS7_set_cipher(PKCS7 *p7, const EVP_CIPHER *cipher)
	{
	int i;
	ASN1_OBJECT *objtmp;
	PKCS7_ENC_CONTENT *ec;

	i=OBJ_obj2nid(p7->type);
	switch (i)
		{
	case NID_pkcs7_signedAndEnveloped:
		ec=p7->d.signed_and_enveloped->enc_data;
		break;
	case NID_pkcs7_enveloped:
		ec=p7->d.enveloped->enc_data;
		break;
	default:
		PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE);
		return(0);
		}

	/* Check cipher OID exists and has data in it*/
	i = EVP_CIPHER_type(cipher);
	if(i == NID_undef) {
		PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
		return(0);
	}
	objtmp = OBJ_nid2obj(i);

	ec->cipher = cipher;
	return 1;
	}
Commit	Line	Data
d02b48c6	1	/* crypto/pkcs7/pk7_lib.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/objects.h>
ec577822 BM	62	#include <openssl/x509.h>
d02b48c6	63
6b691a5c	64	long PKCS7_ctrl(PKCS7 p7, int cmd, long larg, char parg)
d02b48c6 RE	65	{
	66	int nid;
	67	long ret;
	68
	69	nid=OBJ_obj2nid(p7->type);
	70
	71	switch (cmd)
	72	{
	73	case PKCS7_OP_SET_DETACHED_SIGNATURE:
	74	if (nid == NID_pkcs7_signed)
	75	{
	76	ret=p7->detached=(int)larg;
	77	}
	78	else
	79	{
	80	PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
	81	ret=0;
	82	}
	83	break;
	84	case PKCS7_OP_GET_DETACHED_SIGNATURE:
	85	if (nid == NID_pkcs7_signed)
	86	{
9d6b1ce6 DSH	87	if(!p7->d.sign \|\| !p7->d.sign->contents->d.ptr)
	88	ret = 1;
	89	else ret = 0;
	90
	91	p7->detached = ret;
d02b48c6 RE	92	}
	93	else
	94	{
	95	PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
	96	ret=0;
	97	}
	98
	99	break;
	100	default:
dfeab068 RE	101	PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_UNKNOWN_OPERATION);
dfeab068 RE	102	ret=0;
d02b48c6 RE	103	}
	104	return(ret);
	105	}
	106
6b691a5c	107	int PKCS7_content_new(PKCS7 *p7, int type)
d02b48c6 RE	108	{
	109	PKCS7 *ret=NULL;
	110
	111	if ((ret=PKCS7_new()) == NULL) goto err;
	112	if (!PKCS7_set_type(ret,type)) goto err;
	113	if (!PKCS7_set_content(p7,ret)) goto err;
	114
	115	return(1);
	116	err:
	117	if (ret != NULL) PKCS7_free(ret);
	118	return(0);
	119	}
	120
6b691a5c	121	int PKCS7_set_content(PKCS7 p7, PKCS7 p7_data)
d02b48c6 RE	122	{
	123	int i;
	124
	125	i=OBJ_obj2nid(p7->type);
	126	switch (i)
	127	{
	128	case NID_pkcs7_signed:
	129	if (p7->d.sign->contents != NULL)
d8223efd	130	PKCS7_free(p7->d.sign->contents);
d02b48c6 RE	131	p7->d.sign->contents=p7_data;
	132	break;
	133	case NID_pkcs7_digest:
	134	case NID_pkcs7_data:
	135	case NID_pkcs7_enveloped:
	136	case NID_pkcs7_signedAndEnveloped:
	137	case NID_pkcs7_encrypted:
	138	default:
	139	PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
	140	goto err;
	141	}
	142	return(1);
	143	err:
	144	return(0);
	145	}
	146
6b691a5c	147	int PKCS7_set_type(PKCS7 *p7, int type)
d02b48c6 RE	148	{
	149	ASN1_OBJECT *obj;
	150
9d6b1ce6	151	/PKCS7_content_free(p7);/
d02b48c6 RE	152	obj=OBJ_nid2obj(type); /* will not fail */
	153
	154	switch (type)
	155	{
	156	case NID_pkcs7_signed:
	157	p7->type=obj;
	158	if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL)
	159	goto err;
	160	ASN1_INTEGER_set(p7->d.sign->version,1);
	161	break;
	162	case NID_pkcs7_data:
	163	p7->type=obj;
08e9c1af	164	if ((p7->d.data=M_ASN1_OCTET_STRING_new()) == NULL)
d02b48c6 RE	165	goto err;
d02b48c6 RE	166	break;
58964a49 RE	167	case NID_pkcs7_signedAndEnveloped:
	168	p7->type=obj;
	169	if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new())
dfeab068 RE	170	== NULL) goto err;
dfeab068 RE	171	ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1);
58964a49	172	break;
d02b48c6	173	case NID_pkcs7_enveloped:
dfeab068 RE	174	p7->type=obj;
	175	if ((p7->d.enveloped=PKCS7_ENVELOPE_new())
	176	== NULL) goto err;
	177	ASN1_INTEGER_set(p7->d.enveloped->version,0);
	178	break;
d02b48c6	179	case NID_pkcs7_encrypted:
c6c34506 DSH	180	p7->type=obj;
	181	if ((p7->d.encrypted=PKCS7_ENCRYPT_new())
	182	== NULL) goto err;
	183	ASN1_INTEGER_set(p7->d.encrypted->version,0);
	184	break;
	185
	186	case NID_pkcs7_digest:
d02b48c6 RE	187	default:
	188	PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
	189	goto err;
	190	}
	191	return(1);
	192	err:
	193	return(0);
	194	}
	195
6b691a5c	196	int PKCS7_add_signer(PKCS7 p7, PKCS7_SIGNER_INFO psi)
d02b48c6 RE	197	{
	198	int i,j,nid;
	199	X509_ALGOR *alg;
b05b50e6	200	STACK_OF(PKCS7_SIGNER_INFO) *signer_sk;
426edadf	201	STACK_OF(X509_ALGOR) *md_sk;
d02b48c6 RE	202
d02b48c6 RE	203	i=OBJ_obj2nid(p7->type);
58964a49	204	switch (i)
d02b48c6	205	{
58964a49 RE	206	case NID_pkcs7_signed:
	207	signer_sk= p7->d.sign->signer_info;
	208	md_sk= p7->d.sign->md_algs;
	209	break;
	210	case NID_pkcs7_signedAndEnveloped:
	211	signer_sk= p7->d.signed_and_enveloped->signer_info;
	212	md_sk= p7->d.signed_and_enveloped->md_algs;
	213	break;
	214	default:
d02b48c6 RE	215	PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE);
	216	return(0);
	217	}
	218
d02b48c6 RE	219	nid=OBJ_obj2nid(psi->digest_alg->algorithm);
	220
	221	/* If the digest is not currently listed, add it */
	222	j=0;
426edadf	223	for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
d02b48c6	224	{
426edadf	225	alg=sk_X509_ALGOR_value(md_sk,i);
d02b48c6 RE	226	if (OBJ_obj2nid(alg->algorithm) == nid)
	227	{
	228	j=1;
	229	break;
	230	}
	231	}
	232	if (!j) /* we need to add another algorithm */
	233	{
b216664f DSH	234	if(!(alg=X509_ALGOR_new())
	235	\|\| !(alg->parameter = ASN1_TYPE_new())) {
	236	PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);
	237	return(0);
	238	}
d02b48c6	239	alg->algorithm=OBJ_nid2obj(nid);
b216664f	240	alg->parameter->type = V_ASN1_NULL;
426edadf	241	sk_X509_ALGOR_push(md_sk,alg);
d02b48c6 RE	242	}
d02b48c6 RE	243
b05b50e6	244	sk_PKCS7_SIGNER_INFO_push(signer_sk,psi);
d02b48c6 RE	245	return(1);
	246	}
	247
6b691a5c	248	int PKCS7_add_certificate(PKCS7 p7, X509 x509)
d02b48c6 RE	249	{
d02b48c6 RE	250	int i;
f73e07cf	251	STACK_OF(X509) **sk;
d02b48c6 RE	252
d02b48c6 RE	253	i=OBJ_obj2nid(p7->type);
58964a49	254	switch (i)
d02b48c6	255	{
58964a49 RE	256	case NID_pkcs7_signed:
	257	sk= &(p7->d.sign->cert);
	258	break;
	259	case NID_pkcs7_signedAndEnveloped:
	260	sk= &(p7->d.signed_and_enveloped->cert);
	261	break;
	262	default:
	263	PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
d02b48c6 RE	264	return(0);
	265	}
	266
58964a49	267	if (*sk == NULL)
f73e07cf	268	*sk=sk_X509_new_null();
d02b48c6	269	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
f73e07cf	270	sk_X509_push(*sk,x509);
d02b48c6 RE	271	return(1);
	272	}
	273
6b691a5c	274	int PKCS7_add_crl(PKCS7 p7, X509_CRL crl)
d02b48c6 RE	275	{
d02b48c6 RE	276	int i;
6d114240	277	STACK_OF(X509_CRL) **sk;
58964a49	278
d02b48c6	279	i=OBJ_obj2nid(p7->type);
58964a49	280	switch (i)
d02b48c6	281	{
58964a49 RE	282	case NID_pkcs7_signed:
	283	sk= &(p7->d.sign->crl);
	284	break;
	285	case NID_pkcs7_signedAndEnveloped:
	286	sk= &(p7->d.signed_and_enveloped->crl);
	287	break;
	288	default:
	289	PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
d02b48c6 RE	290	return(0);
	291	}
	292
58964a49	293	if (*sk == NULL)
6d114240	294	*sk=sk_X509_CRL_new_null();
d02b48c6 RE	295
d02b48c6 RE	296	CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
6d114240	297	sk_X509_CRL_push(*sk,crl);
d02b48c6 RE	298	return(1);
	299	}
	300
6b691a5c UM	301	int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO p7i, X509 x509, EVP_PKEY *pkey,
6b691a5c UM	302	EVP_MD *dgst)
d02b48c6	303	{
55f30198 DSH	304	char is_dsa;
	305	if (pkey->type == EVP_PKEY_DSA) is_dsa = 1;
	306	else is_dsa = 0;
d02b48c6 RE	307	/* We now need to add another PKCS7_SIGNER_INFO entry */
	308	ASN1_INTEGER_set(p7i->version,1);
	309	X509_NAME_set(&p7i->issuer_and_serial->issuer,
	310	X509_get_issuer_name(x509));
	311
	312	/* because ASN1_INTEGER_set is used to set a 'long' we will do
	313	* things the ugly way. */
08e9c1af	314	M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
d02b48c6	315	p7i->issuer_and_serial->serial=
08e9c1af	316	M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
d02b48c6 RE	317
	318	/* lets keep the pkey around for a while */
	319	CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
	320	p7i->pkey=pkey;
	321
	322	/* Set the algorithms */
55f30198	323	if (is_dsa) p7i->digest_alg->algorithm=OBJ_nid2obj(NID_sha1);
dfeab068 RE	324	else
dfeab068 RE	325	p7i->digest_alg->algorithm=OBJ_nid2obj(EVP_MD_type(dgst));
d02b48c6	326
10243d97 DSH	327	if (p7i->digest_alg->parameter != NULL)
	328	ASN1_TYPE_free(p7i->digest_alg->parameter);
	329	if ((p7i->digest_alg->parameter=ASN1_TYPE_new()) == NULL)
	330	goto err;
	331	p7i->digest_alg->parameter->type=V_ASN1_NULL;
	332
c8b41850 DSH	333	p7i->digest_enc_alg->algorithm=OBJ_nid2obj(EVP_PKEY_type(pkey->type));
c8b41850 DSH	334
d02b48c6 RE	335	if (p7i->digest_enc_alg->parameter != NULL)
d02b48c6 RE	336	ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
55f30198 DSH	337	if(is_dsa) p7i->digest_enc_alg->parameter = NULL;
	338	else {
	339	if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
	340	goto err;
	341	p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
	342	}
d02b48c6	343
d02b48c6 RE	344	return(1);
	345	err:
	346	return(0);
	347	}
	348
6b691a5c UM	349	PKCS7_SIGNER_INFO PKCS7_add_signature(PKCS7 p7, X509 x509, EVP_PKEY pkey,
6b691a5c UM	350	EVP_MD *dgst)
d02b48c6 RE	351	{
	352	PKCS7_SIGNER_INFO *si;
	353
	354	if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
	355	if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
	356	if (!PKCS7_add_signer(p7,si)) goto err;
	357	return(si);
	358	err:
	359	return(NULL);
	360	}
	361
b05b50e6	362	STACK_OF(PKCS7_SIGNER_INFO) PKCS7_get_signer_info(PKCS7 p7)
d02b48c6 RE	363	{
	364	if (PKCS7_type_is_signed(p7))
	365	{
	366	return(p7->d.sign->signer_info);
	367	}
dfeab068 RE	368	else if (PKCS7_type_is_signedAndEnveloped(p7))
	369	{
	370	return(p7->d.signed_and_enveloped->signer_info);
	371	}
d02b48c6 RE	372	else
	373	return(NULL);
	374	}
	375
6b691a5c	376	PKCS7_RECIP_INFO PKCS7_add_recipient(PKCS7 p7, X509 *x509)
58964a49 RE	377	{
	378	PKCS7_RECIP_INFO *ri;
	379
	380	if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
	381	if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
	382	if (!PKCS7_add_recipient_info(p7,ri)) goto err;
	383	return(ri);
	384	err:
	385	return(NULL);
	386	}
	387
6b691a5c	388	int PKCS7_add_recipient_info(PKCS7 p7, PKCS7_RECIP_INFO ri)
58964a49 RE	389	{
58964a49 RE	390	int i;
8f0edcd1	391	STACK_OF(PKCS7_RECIP_INFO) *sk;
58964a49 RE	392
	393	i=OBJ_obj2nid(p7->type);
	394	switch (i)
	395	{
	396	case NID_pkcs7_signedAndEnveloped:
	397	sk= p7->d.signed_and_enveloped->recipientinfo;
	398	break;
dfeab068 RE	399	case NID_pkcs7_enveloped:
	400	sk= p7->d.enveloped->recipientinfo;
	401	break;
58964a49 RE	402	default:
	403	PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
	404	return(0);
	405	}
	406
8f0edcd1	407	sk_PKCS7_RECIP_INFO_push(sk,ri);
58964a49 RE	408	return(1);
	409	}
	410
6b691a5c	411	int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO p7i, X509 x509)
58964a49 RE	412	{
	413	ASN1_INTEGER_set(p7i->version,0);
	414	X509_NAME_set(&p7i->issuer_and_serial->issuer,
	415	X509_get_issuer_name(x509));
	416
08e9c1af	417	M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
58964a49	418	p7i->issuer_and_serial->serial=
08e9c1af	419	M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
58964a49	420
dfeab068	421	X509_ALGOR_free(p7i->key_enc_algor);
78d3b819	422	p7i->key_enc_algor= X509_ALGOR_dup(x509->cert_info->key->algor);
dfeab068	423
58964a49 RE	424	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
	425	p7i->cert=x509;
	426
	427	return(1);
	428	}
	429
6b691a5c	430	X509 PKCS7_cert_from_signer_info(PKCS7 p7, PKCS7_SIGNER_INFO *si)
d02b48c6 RE	431	{
	432	if (PKCS7_type_is_signed(p7))
	433	return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
	434	si->issuer_and_serial->issuer,
	435	si->issuer_and_serial->serial));
	436	else
	437	return(NULL);
	438	}
	439
84fa704c	440	int PKCS7_set_cipher(PKCS7 p7, const EVP_CIPHER cipher)
58964a49 RE	441	{
58964a49 RE	442	int i;
f45f40ff	443	ASN1_OBJECT *objtmp;
58964a49 RE	444	PKCS7_ENC_CONTENT *ec;
	445
	446	i=OBJ_obj2nid(p7->type);
	447	switch (i)
	448	{
	449	case NID_pkcs7_signedAndEnveloped:
	450	ec=p7->d.signed_and_enveloped->enc_data;
	451	break;
dfeab068 RE	452	case NID_pkcs7_enveloped:
	453	ec=p7->d.enveloped->enc_data;
	454	break;
58964a49 RE	455	default:
	456	PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE);
	457	return(0);
	458	}
	459
f45f40ff	460	/* Check cipher OID exists and has data in it*/
4b426580 DSH	461	i = EVP_CIPHER_type(cipher);
4b426580 DSH	462	if(i == NID_undef) {
f45f40ff DSH	463	PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
	464	return(0);
	465	}
4b426580	466	objtmp = OBJ_nid2obj(i);
84fa704c DSH	467
	468	ec->cipher = cipher;
	469	return 1;
58964a49 RE	470	}
58964a49 RE	471