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/* pk7_attr.c */
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/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
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* project 2001.
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*/
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/* ====================================================================
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* Copyright (c) 2001-2004 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <openssl/bio.h>
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#include <openssl/asn1.h>
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#include <openssl/pem.h>
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#include <openssl/pkcs7.h>
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#include <openssl/x509.h>
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#include <openssl/err.h>
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EXPORT_C int PKCS7_add_attrib_smimecap(PKCS7_SIGNER_INFO *si, STACK_OF(X509_ALGOR) *cap)
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{
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ASN1_STRING *seq;
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unsigned char *p, *pp;
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int len;
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len=i2d_ASN1_SET_OF_X509_ALGOR(cap,NULL,i2d_X509_ALGOR,
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V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL,
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IS_SEQUENCE);
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if(!(pp=(unsigned char *)OPENSSL_malloc(len))) {
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PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP,ERR_R_MALLOC_FAILURE);
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return 0;
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}
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p=pp;
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i2d_ASN1_SET_OF_X509_ALGOR(cap,&p,i2d_X509_ALGOR, V_ASN1_SEQUENCE,
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V_ASN1_UNIVERSAL, IS_SEQUENCE);
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if(!(seq = ASN1_STRING_new())) {
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PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP,ERR_R_MALLOC_FAILURE);
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return 0;
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}
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if(!ASN1_STRING_set (seq, pp, len)) {
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PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP,ERR_R_MALLOC_FAILURE);
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return 0;
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}
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OPENSSL_free (pp);
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return PKCS7_add_signed_attribute(si, NID_SMIMECapabilities,
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V_ASN1_SEQUENCE, seq);
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}
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EXPORT_C STACK_OF(X509_ALGOR) *PKCS7_get_smimecap(PKCS7_SIGNER_INFO *si)
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{
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ASN1_TYPE *cap;
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const unsigned char *p;
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cap = PKCS7_get_signed_attribute(si, NID_SMIMECapabilities);
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if (!cap || (cap->type != V_ASN1_SEQUENCE))
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return NULL;
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p = cap->value.sequence->data;
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return d2i_ASN1_SET_OF_X509_ALGOR(NULL, &p,
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cap->value.sequence->length,
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d2i_X509_ALGOR, X509_ALGOR_free,
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V_ASN1_SEQUENCE, V_ASN1_UNIVERSAL);
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}
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/* Basic smime-capabilities OID and optional integer arg */
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EXPORT_C int PKCS7_simple_smimecap(STACK_OF(X509_ALGOR) *sk, int nid, int arg)
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{
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X509_ALGOR *alg;
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if(!(alg = X509_ALGOR_new())) {
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PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE);
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return 0;
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}
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ASN1_OBJECT_free(alg->algorithm);
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alg->algorithm = OBJ_nid2obj (nid);
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if (arg > 0) {
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ASN1_INTEGER *nbit;
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if(!(alg->parameter = ASN1_TYPE_new())) {
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PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE);
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return 0;
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}
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if(!(nbit = ASN1_INTEGER_new())) {
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PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE);
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return 0;
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}
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if(!ASN1_INTEGER_set (nbit, arg)) {
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PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE);
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return 0;
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}
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alg->parameter->value.integer = nbit;
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alg->parameter->type = V_ASN1_INTEGER;
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}
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sk_X509_ALGOR_push (sk, alg);
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return 1;
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}
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