[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;
			if (ret && PKCS7_type_is_data(p7->d.sign->contents))
					{
					ASN1_OCTET_STRING *os;
					os=p7->d.sign->contents->d.data;
					ASN1_OCTET_STRING_free(os);
					p7->d.sign->contents->d.data = NULL;
					}
			}
		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);
		p7->d.signed_and_enveloped->enc_data->content_type
						= OBJ_nid2obj(NID_pkcs7_data);
		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);
		p7->d.enveloped->enc_data->content_type
						= OBJ_nid2obj(NID_pkcs7_data);
		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);
		p7->d.encrypted->enc_data->content_type
						= OBJ_nid2obj(NID_pkcs7_data);
		break;

	case NID_pkcs7_digest:
		p7->type=obj;
		if ((p7->d.digest=PKCS7_DIGEST_new())
			== NULL) goto err;
		ASN1_INTEGER_set(p7->d.digest->version,0);
		break;
	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,
	     const EVP_MD *dgst)
	{
	int nid;
	char is_dsa;

	if (pkey->type == EVP_PKEY_DSA || pkey->type == EVP_PKEY_EC)
		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;

	if (p7i->digest_enc_alg->parameter != NULL)
		ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
	nid = EVP_PKEY_type(pkey->type);
	if (nid == EVP_PKEY_RSA)
		{
		p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_rsaEncryption);
		if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
			goto err;
		p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
		}
	else if (nid == EVP_PKEY_DSA)
		{
#if 1
		/* use 'dsaEncryption' OID for compatibility with other software
		 * (PKCS #7 v1.5 does specify how to handle DSA) ... */
		p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsa);
#else
		/* ... although the 'dsaWithSHA1' OID (as required by RFC 2630 for CMS)
		 * would make more sense. */
		p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsaWithSHA1);
#endif
		p7i->digest_enc_alg->parameter = NULL; /* special case for DSA: omit 'parameter'! */
		}
	else if (nid == EVP_PKEY_EC)
		{
		p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_ecdsa_with_SHA1);
		if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
			goto err;
		p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
		}
	else
		return(0);

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

PKCS7_SIGNER_INFO *PKCS7_add_signature(PKCS7 *p7, X509 *x509, EVP_PKEY *pkey,
	     const 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;
48921e00	77	if (ret && PKCS7_type_is_data(p7->d.sign->contents))
f8049301 DSH	78	{
	79	ASN1_OCTET_STRING *os;
	80	os=p7->d.sign->contents->d.data;
	81	ASN1_OCTET_STRING_free(os);
	82	p7->d.sign->contents->d.data = NULL;
	83	}
d02b48c6 RE	84	}
	85	else
	86	{
	87	PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
	88	ret=0;
	89	}
	90	break;
	91	case PKCS7_OP_GET_DETACHED_SIGNATURE:
	92	if (nid == NID_pkcs7_signed)
	93	{
9d6b1ce6 DSH	94	if(!p7->d.sign \|\| !p7->d.sign->contents->d.ptr)
	95	ret = 1;
	96	else ret = 0;
	97
	98	p7->detached = ret;
d02b48c6 RE	99	}
	100	else
	101	{
	102	PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_OPERATION_NOT_SUPPORTED_ON_THIS_TYPE);
	103	ret=0;
	104	}
	105
	106	break;
	107	default:
dfeab068 RE	108	PKCS7err(PKCS7_F_PKCS7_CTRL,PKCS7_R_UNKNOWN_OPERATION);
dfeab068 RE	109	ret=0;
d02b48c6 RE	110	}
	111	return(ret);
	112	}
	113
6b691a5c	114	int PKCS7_content_new(PKCS7 *p7, int type)
d02b48c6 RE	115	{
	116	PKCS7 *ret=NULL;
	117
	118	if ((ret=PKCS7_new()) == NULL) goto err;
	119	if (!PKCS7_set_type(ret,type)) goto err;
	120	if (!PKCS7_set_content(p7,ret)) goto err;
	121
	122	return(1);
	123	err:
	124	if (ret != NULL) PKCS7_free(ret);
	125	return(0);
	126	}
	127
6b691a5c	128	int PKCS7_set_content(PKCS7 p7, PKCS7 p7_data)
d02b48c6 RE	129	{
	130	int i;
	131
	132	i=OBJ_obj2nid(p7->type);
	133	switch (i)
	134	{
	135	case NID_pkcs7_signed:
	136	if (p7->d.sign->contents != NULL)
d8223efd	137	PKCS7_free(p7->d.sign->contents);
d02b48c6 RE	138	p7->d.sign->contents=p7_data;
	139	break;
	140	case NID_pkcs7_digest:
	141	case NID_pkcs7_data:
	142	case NID_pkcs7_enveloped:
	143	case NID_pkcs7_signedAndEnveloped:
	144	case NID_pkcs7_encrypted:
	145	default:
	146	PKCS7err(PKCS7_F_PKCS7_SET_CONTENT,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
	147	goto err;
	148	}
	149	return(1);
	150	err:
	151	return(0);
	152	}
	153
6b691a5c	154	int PKCS7_set_type(PKCS7 *p7, int type)
d02b48c6 RE	155	{
	156	ASN1_OBJECT *obj;
	157
9d6b1ce6	158	/PKCS7_content_free(p7);/
d02b48c6 RE	159	obj=OBJ_nid2obj(type); /* will not fail */
	160
	161	switch (type)
	162	{
	163	case NID_pkcs7_signed:
	164	p7->type=obj;
	165	if ((p7->d.sign=PKCS7_SIGNED_new()) == NULL)
	166	goto err;
	167	ASN1_INTEGER_set(p7->d.sign->version,1);
	168	break;
	169	case NID_pkcs7_data:
	170	p7->type=obj;
08e9c1af	171	if ((p7->d.data=M_ASN1_OCTET_STRING_new()) == NULL)
d02b48c6 RE	172	goto err;
d02b48c6 RE	173	break;
58964a49 RE	174	case NID_pkcs7_signedAndEnveloped:
	175	p7->type=obj;
	176	if ((p7->d.signed_and_enveloped=PKCS7_SIGN_ENVELOPE_new())
dfeab068 RE	177	== NULL) goto err;
dfeab068 RE	178	ASN1_INTEGER_set(p7->d.signed_and_enveloped->version,1);
a43cf9fa DSH	179	p7->d.signed_and_enveloped->enc_data->content_type
a43cf9fa DSH	180	= OBJ_nid2obj(NID_pkcs7_data);
58964a49	181	break;
d02b48c6	182	case NID_pkcs7_enveloped:
dfeab068 RE	183	p7->type=obj;
	184	if ((p7->d.enveloped=PKCS7_ENVELOPE_new())
	185	== NULL) goto err;
	186	ASN1_INTEGER_set(p7->d.enveloped->version,0);
a43cf9fa DSH	187	p7->d.enveloped->enc_data->content_type
a43cf9fa DSH	188	= OBJ_nid2obj(NID_pkcs7_data);
dfeab068	189	break;
d02b48c6	190	case NID_pkcs7_encrypted:
c6c34506 DSH	191	p7->type=obj;
	192	if ((p7->d.encrypted=PKCS7_ENCRYPT_new())
	193	== NULL) goto err;
	194	ASN1_INTEGER_set(p7->d.encrypted->version,0);
a43cf9fa DSH	195	p7->d.encrypted->enc_data->content_type
a43cf9fa DSH	196	= OBJ_nid2obj(NID_pkcs7_data);
c6c34506 DSH	197	break;
	198
	199	case NID_pkcs7_digest:
0602abf5 DSH	200	p7->type=obj;
	201	if ((p7->d.digest=PKCS7_DIGEST_new())
	202	== NULL) goto err;
	203	ASN1_INTEGER_set(p7->d.digest->version,0);
	204	break;
d02b48c6 RE	205	default:
	206	PKCS7err(PKCS7_F_PKCS7_SET_TYPE,PKCS7_R_UNSUPPORTED_CONTENT_TYPE);
	207	goto err;
	208	}
	209	return(1);
	210	err:
	211	return(0);
	212	}
	213
6b691a5c	214	int PKCS7_add_signer(PKCS7 p7, PKCS7_SIGNER_INFO psi)
d02b48c6 RE	215	{
	216	int i,j,nid;
	217	X509_ALGOR *alg;
b05b50e6	218	STACK_OF(PKCS7_SIGNER_INFO) *signer_sk;
426edadf	219	STACK_OF(X509_ALGOR) *md_sk;
d02b48c6 RE	220
d02b48c6 RE	221	i=OBJ_obj2nid(p7->type);
58964a49	222	switch (i)
d02b48c6	223	{
58964a49 RE	224	case NID_pkcs7_signed:
	225	signer_sk= p7->d.sign->signer_info;
	226	md_sk= p7->d.sign->md_algs;
	227	break;
	228	case NID_pkcs7_signedAndEnveloped:
	229	signer_sk= p7->d.signed_and_enveloped->signer_info;
	230	md_sk= p7->d.signed_and_enveloped->md_algs;
	231	break;
	232	default:
d02b48c6 RE	233	PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,PKCS7_R_WRONG_CONTENT_TYPE);
	234	return(0);
	235	}
	236
d02b48c6 RE	237	nid=OBJ_obj2nid(psi->digest_alg->algorithm);
	238
	239	/* If the digest is not currently listed, add it */
	240	j=0;
426edadf	241	for (i=0; i<sk_X509_ALGOR_num(md_sk); i++)
d02b48c6	242	{
426edadf	243	alg=sk_X509_ALGOR_value(md_sk,i);
d02b48c6 RE	244	if (OBJ_obj2nid(alg->algorithm) == nid)
	245	{
	246	j=1;
	247	break;
	248	}
	249	}
	250	if (!j) /* we need to add another algorithm */
	251	{
b216664f DSH	252	if(!(alg=X509_ALGOR_new())
	253	\|\| !(alg->parameter = ASN1_TYPE_new())) {
	254	PKCS7err(PKCS7_F_PKCS7_ADD_SIGNER,ERR_R_MALLOC_FAILURE);
	255	return(0);
	256	}
d02b48c6	257	alg->algorithm=OBJ_nid2obj(nid);
b216664f	258	alg->parameter->type = V_ASN1_NULL;
426edadf	259	sk_X509_ALGOR_push(md_sk,alg);
d02b48c6 RE	260	}
d02b48c6 RE	261
b05b50e6	262	sk_PKCS7_SIGNER_INFO_push(signer_sk,psi);
d02b48c6 RE	263	return(1);
	264	}
	265
6b691a5c	266	int PKCS7_add_certificate(PKCS7 p7, X509 x509)
d02b48c6 RE	267	{
d02b48c6 RE	268	int i;
f73e07cf	269	STACK_OF(X509) **sk;
d02b48c6 RE	270
d02b48c6 RE	271	i=OBJ_obj2nid(p7->type);
58964a49	272	switch (i)
d02b48c6	273	{
58964a49 RE	274	case NID_pkcs7_signed:
	275	sk= &(p7->d.sign->cert);
	276	break;
	277	case NID_pkcs7_signedAndEnveloped:
	278	sk= &(p7->d.signed_and_enveloped->cert);
	279	break;
	280	default:
	281	PKCS7err(PKCS7_F_PKCS7_ADD_CERTIFICATE,PKCS7_R_WRONG_CONTENT_TYPE);
d02b48c6 RE	282	return(0);
	283	}
	284
58964a49	285	if (*sk == NULL)
f73e07cf	286	*sk=sk_X509_new_null();
d02b48c6	287	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
f73e07cf	288	sk_X509_push(*sk,x509);
d02b48c6 RE	289	return(1);
	290	}
	291
6b691a5c	292	int PKCS7_add_crl(PKCS7 p7, X509_CRL crl)
d02b48c6 RE	293	{
d02b48c6 RE	294	int i;
6d114240	295	STACK_OF(X509_CRL) **sk;
58964a49	296
d02b48c6	297	i=OBJ_obj2nid(p7->type);
58964a49	298	switch (i)
d02b48c6	299	{
58964a49 RE	300	case NID_pkcs7_signed:
	301	sk= &(p7->d.sign->crl);
	302	break;
	303	case NID_pkcs7_signedAndEnveloped:
	304	sk= &(p7->d.signed_and_enveloped->crl);
	305	break;
	306	default:
	307	PKCS7err(PKCS7_F_PKCS7_ADD_CRL,PKCS7_R_WRONG_CONTENT_TYPE);
d02b48c6 RE	308	return(0);
	309	}
	310
58964a49	311	if (*sk == NULL)
6d114240	312	*sk=sk_X509_CRL_new_null();
d02b48c6 RE	313
d02b48c6 RE	314	CRYPTO_add(&crl->references,1,CRYPTO_LOCK_X509_CRL);
6d114240	315	sk_X509_CRL_push(*sk,crl);
d02b48c6 RE	316	return(1);
	317	}
	318
6b691a5c	319	int PKCS7_SIGNER_INFO_set(PKCS7_SIGNER_INFO p7i, X509 x509, EVP_PKEY *pkey,
13588350	320	const EVP_MD *dgst)
d02b48c6	321	{
279fe3b1	322	int nid;
55f30198	323	char is_dsa;
279fe3b1	324
5488bb61	325	if (pkey->type == EVP_PKEY_DSA \|\| pkey->type == EVP_PKEY_EC)
279fe3b1 BM	326	is_dsa = 1;
	327	else
	328	is_dsa = 0;
d02b48c6 RE	329	/* We now need to add another PKCS7_SIGNER_INFO entry */
	330	ASN1_INTEGER_set(p7i->version,1);
	331	X509_NAME_set(&p7i->issuer_and_serial->issuer,
	332	X509_get_issuer_name(x509));
	333
	334	/* because ASN1_INTEGER_set is used to set a 'long' we will do
	335	* things the ugly way. */
08e9c1af	336	M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
d02b48c6	337	p7i->issuer_and_serial->serial=
08e9c1af	338	M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
d02b48c6 RE	339
	340	/* lets keep the pkey around for a while */
	341	CRYPTO_add(&pkey->references,1,CRYPTO_LOCK_EVP_PKEY);
	342	p7i->pkey=pkey;
	343
	344	/* Set the algorithms */
55f30198	345	if (is_dsa) p7i->digest_alg->algorithm=OBJ_nid2obj(NID_sha1);
dfeab068 RE	346	else
dfeab068 RE	347	p7i->digest_alg->algorithm=OBJ_nid2obj(EVP_MD_type(dgst));
d02b48c6	348
10243d97 DSH	349	if (p7i->digest_alg->parameter != NULL)
	350	ASN1_TYPE_free(p7i->digest_alg->parameter);
	351	if ((p7i->digest_alg->parameter=ASN1_TYPE_new()) == NULL)
	352	goto err;
	353	p7i->digest_alg->parameter->type=V_ASN1_NULL;
	354
d02b48c6 RE	355	if (p7i->digest_enc_alg->parameter != NULL)
d02b48c6 RE	356	ASN1_TYPE_free(p7i->digest_enc_alg->parameter);
279fe3b1 BM	357	nid = EVP_PKEY_type(pkey->type);
	358	if (nid == EVP_PKEY_RSA)
	359	{
	360	p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_rsaEncryption);
55f30198 DSH	361	if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
	362	goto err;
	363	p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
279fe3b1 BM	364	}
	365	else if (nid == EVP_PKEY_DSA)
	366	{
	367	#if 1
	368	/* use 'dsaEncryption' OID for compatibility with other software
	369	* (PKCS #7 v1.5 does specify how to handle DSA) ... */
	370	p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsa);
	371	#else
	372	/* ... although the 'dsaWithSHA1' OID (as required by RFC 2630 for CMS)
	373	* would make more sense. */
	374	p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_dsaWithSHA1);
	375	#endif
	376	p7i->digest_enc_alg->parameter = NULL; /* special case for DSA: omit 'parameter'! */
	377	}
5488bb61	378	else if (nid == EVP_PKEY_EC)
279fe3b1 BM	379	{
	380	p7i->digest_enc_alg->algorithm=OBJ_nid2obj(NID_ecdsa_with_SHA1);
	381	if (!(p7i->digest_enc_alg->parameter=ASN1_TYPE_new()))
	382	goto err;
	383	p7i->digest_enc_alg->parameter->type=V_ASN1_NULL;
	384	}
	385	else
	386	return(0);
d02b48c6	387
d02b48c6 RE	388	return(1);
	389	err:
	390	return(0);
	391	}
	392
6b691a5c	393	PKCS7_SIGNER_INFO PKCS7_add_signature(PKCS7 p7, X509 x509, EVP_PKEY pkey,
13588350	394	const EVP_MD *dgst)
d02b48c6 RE	395	{
	396	PKCS7_SIGNER_INFO *si;
	397
	398	if ((si=PKCS7_SIGNER_INFO_new()) == NULL) goto err;
	399	if (!PKCS7_SIGNER_INFO_set(si,x509,pkey,dgst)) goto err;
	400	if (!PKCS7_add_signer(p7,si)) goto err;
	401	return(si);
	402	err:
	403	return(NULL);
	404	}
	405
b05b50e6	406	STACK_OF(PKCS7_SIGNER_INFO) PKCS7_get_signer_info(PKCS7 p7)
d02b48c6 RE	407	{
	408	if (PKCS7_type_is_signed(p7))
	409	{
	410	return(p7->d.sign->signer_info);
	411	}
dfeab068 RE	412	else if (PKCS7_type_is_signedAndEnveloped(p7))
	413	{
	414	return(p7->d.signed_and_enveloped->signer_info);
	415	}
d02b48c6 RE	416	else
	417	return(NULL);
	418	}
	419
6b691a5c	420	PKCS7_RECIP_INFO PKCS7_add_recipient(PKCS7 p7, X509 *x509)
58964a49 RE	421	{
	422	PKCS7_RECIP_INFO *ri;
	423
	424	if ((ri=PKCS7_RECIP_INFO_new()) == NULL) goto err;
	425	if (!PKCS7_RECIP_INFO_set(ri,x509)) goto err;
	426	if (!PKCS7_add_recipient_info(p7,ri)) goto err;
	427	return(ri);
	428	err:
	429	return(NULL);
	430	}
	431
6b691a5c	432	int PKCS7_add_recipient_info(PKCS7 p7, PKCS7_RECIP_INFO ri)
58964a49 RE	433	{
58964a49 RE	434	int i;
8f0edcd1	435	STACK_OF(PKCS7_RECIP_INFO) *sk;
58964a49 RE	436
	437	i=OBJ_obj2nid(p7->type);
	438	switch (i)
	439	{
	440	case NID_pkcs7_signedAndEnveloped:
	441	sk= p7->d.signed_and_enveloped->recipientinfo;
	442	break;
dfeab068 RE	443	case NID_pkcs7_enveloped:
	444	sk= p7->d.enveloped->recipientinfo;
	445	break;
58964a49 RE	446	default:
	447	PKCS7err(PKCS7_F_PKCS7_ADD_RECIPIENT_INFO,PKCS7_R_WRONG_CONTENT_TYPE);
	448	return(0);
	449	}
	450
8f0edcd1	451	sk_PKCS7_RECIP_INFO_push(sk,ri);
58964a49 RE	452	return(1);
	453	}
	454
6b691a5c	455	int PKCS7_RECIP_INFO_set(PKCS7_RECIP_INFO p7i, X509 x509)
58964a49 RE	456	{
	457	ASN1_INTEGER_set(p7i->version,0);
	458	X509_NAME_set(&p7i->issuer_and_serial->issuer,
	459	X509_get_issuer_name(x509));
	460
08e9c1af	461	M_ASN1_INTEGER_free(p7i->issuer_and_serial->serial);
58964a49	462	p7i->issuer_and_serial->serial=
08e9c1af	463	M_ASN1_INTEGER_dup(X509_get_serialNumber(x509));
58964a49	464
dfeab068	465	X509_ALGOR_free(p7i->key_enc_algor);
78d3b819	466	p7i->key_enc_algor= X509_ALGOR_dup(x509->cert_info->key->algor);
dfeab068	467
58964a49 RE	468	CRYPTO_add(&x509->references,1,CRYPTO_LOCK_X509);
	469	p7i->cert=x509;
	470
	471	return(1);
	472	}
	473
6b691a5c	474	X509 PKCS7_cert_from_signer_info(PKCS7 p7, PKCS7_SIGNER_INFO *si)
d02b48c6 RE	475	{
	476	if (PKCS7_type_is_signed(p7))
	477	return(X509_find_by_issuer_and_serial(p7->d.sign->cert,
	478	si->issuer_and_serial->issuer,
	479	si->issuer_and_serial->serial));
	480	else
	481	return(NULL);
	482	}
	483
84fa704c	484	int PKCS7_set_cipher(PKCS7 p7, const EVP_CIPHER cipher)
58964a49 RE	485	{
58964a49 RE	486	int i;
f45f40ff	487	ASN1_OBJECT *objtmp;
58964a49 RE	488	PKCS7_ENC_CONTENT *ec;
	489
	490	i=OBJ_obj2nid(p7->type);
	491	switch (i)
	492	{
	493	case NID_pkcs7_signedAndEnveloped:
	494	ec=p7->d.signed_and_enveloped->enc_data;
	495	break;
dfeab068 RE	496	case NID_pkcs7_enveloped:
	497	ec=p7->d.enveloped->enc_data;
	498	break;
58964a49 RE	499	default:
	500	PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_WRONG_CONTENT_TYPE);
	501	return(0);
	502	}
	503
f45f40ff	504	/* Check cipher OID exists and has data in it*/
4b426580 DSH	505	i = EVP_CIPHER_type(cipher);
4b426580 DSH	506	if(i == NID_undef) {
f45f40ff DSH	507	PKCS7err(PKCS7_F_PKCS7_SET_CIPHER,PKCS7_R_CIPHER_HAS_NO_OBJECT_IDENTIFIER);
	508	return(0);
	509	}
4b426580	510	objtmp = OBJ_nid2obj(i);
84fa704c DSH	511
	512	ec->cipher = cipher;
	513	return 1;
58964a49 RE	514	}
58964a49 RE	515