-/* pk7_attr.c */
-/* S/MIME code.
- * Copyright (C) 1997-8 Dr S N Henson (shenson@bigfoot.com)
- * All Rights Reserved.
- * Redistribution of this code without the authors permission is expressly
- * prohibited.
+/*
+ * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
#include <stdio.h>
#include <stdlib.h>
#include <openssl/bio.h>
#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
#include <openssl/pem.h>
#include <openssl/pkcs7.h>
+#include <openssl/x509.h>
#include <openssl/err.h>
-int PKCS7_add_attrib_smimecap(PKCS7_SIGNER_INFO *si, STACK_OF(X509_ALGOR) *cap)
+int PKCS7_add_attrib_smimecap(PKCS7_SIGNER_INFO *si,
+ STACK_OF(X509_ALGOR) *cap)
{
- ASN1_STRING *seq;
- unsigned char *p, *pp;
- int len;
- len=i2d_ASN1_SET_OF_X509_ALGOR(cap,NULL,i2d_X509_ALGOR,
- V_ASN1_SEQUENCE,V_ASN1_UNIVERSAL,
- IS_SEQUENCE);
- if(!(pp=(unsigned char *)Malloc(len))) {
- PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- p=pp;
- i2d_ASN1_SET_OF_X509_ALGOR(cap,&p,i2d_X509_ALGOR, V_ASN1_SEQUENCE,
- V_ASN1_UNIVERSAL, IS_SEQUENCE);
- if(!(seq = ASN1_STRING_new())) {
- PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- if(!ASN1_STRING_set (seq, pp, len)) {
- PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- Free (pp);
- return PKCS7_add_signed_attribute(si, NID_SMIMECapabilities,
- V_ASN1_SEQUENCE, seq);
+ ASN1_STRING *seq;
+
+ if ((seq = ASN1_STRING_new()) == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_ADD_ATTRIB_SMIMECAP, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ seq->length = ASN1_item_i2d((ASN1_VALUE *)cap, &seq->data,
+ ASN1_ITEM_rptr(X509_ALGORS));
+ return PKCS7_add_signed_attribute(si, NID_SMIMECapabilities,
+ V_ASN1_SEQUENCE, seq);
}
-STACK *PKCS7_get_smimecap(PKCS7_SIGNER_INFO *si)
+STACK_OF(X509_ALGOR) *PKCS7_get_smimecap(PKCS7_SIGNER_INFO *si)
{
- ASN1_TYPE *cap;
- unsigned char *p;
- cap = PKCS7_get_signed_attribute(si, NID_SMIMECapabilities);
- if (!cap) return NULL;
- p = cap->value.sequence->data;
- return d2i_ASN1_SET (NULL, &p, cap->value.sequence->length,
- (char *(*)())d2i_X509_ALGOR, X509_ALGOR_free, V_ASN1_SEQUENCE,
- V_ASN1_UNIVERSAL);
+ ASN1_TYPE *cap;
+ const unsigned char *p;
+
+ cap = PKCS7_get_signed_attribute(si, NID_SMIMECapabilities);
+ if (cap == NULL || (cap->type != V_ASN1_SEQUENCE))
+ return NULL;
+ p = cap->value.sequence->data;
+ return (STACK_OF(X509_ALGOR) *)
+ ASN1_item_d2i(NULL, &p, cap->value.sequence->length,
+ ASN1_ITEM_rptr(X509_ALGORS));
}
/* Basic smime-capabilities OID and optional integer arg */
int PKCS7_simple_smimecap(STACK_OF(X509_ALGOR) *sk, int nid, int arg)
{
- X509_ALGOR *alg;
+ ASN1_INTEGER *nbit = NULL;
+ X509_ALGOR *alg;
+
+ if ((alg = X509_ALGOR_new()) == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ ASN1_OBJECT_free(alg->algorithm);
+ alg->algorithm = OBJ_nid2obj(nid);
+ if (arg > 0) {
+ if ((alg->parameter = ASN1_TYPE_new()) == NULL) {
+ goto err;
+ }
+ if ((nbit = ASN1_INTEGER_new()) == NULL) {
+ goto err;
+ }
+ if (!ASN1_INTEGER_set(nbit, arg)) {
+ goto err;
+ }
+ alg->parameter->value.integer = nbit;
+ alg->parameter->type = V_ASN1_INTEGER;
+ nbit = NULL;
+ }
+ if (!sk_X509_ALGOR_push(sk, alg)) {
+ goto err;
+ }
+ return 1;
+err:
+ PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP, ERR_R_MALLOC_FAILURE);
+ ASN1_INTEGER_free(nbit);
+ X509_ALGOR_free(alg);
+ return 0;
+}
- if(!(alg = X509_ALGOR_new())) {
- PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- ASN1_OBJECT_free(alg->algorithm);
- alg->algorithm = OBJ_nid2obj (nid);
- if (arg > 0) {
- ASN1_INTEGER *nbit;
- if(!(alg->parameter = ASN1_TYPE_new())) {
- PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- if(!(nbit = ASN1_INTEGER_new())) {
- PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- if(!ASN1_INTEGER_set (nbit, arg)) {
- PKCS7err(PKCS7_F_PKCS7_SIMPLE_SMIMECAP,ERR_R_MALLOC_FAILURE);
- return 0;
- }
- alg->parameter->value.integer = nbit;
- alg->parameter->type = V_ASN1_INTEGER;
- }
- sk_X509_ALGOR_push (sk, alg);
- return 1;
+int PKCS7_add_attrib_content_type(PKCS7_SIGNER_INFO *si, ASN1_OBJECT *coid)
+{
+ if (PKCS7_get_signed_attribute(si, NID_pkcs9_contentType))
+ return 0;
+ if (!coid)
+ coid = OBJ_nid2obj(NID_pkcs7_data);
+ return PKCS7_add_signed_attribute(si, NID_pkcs9_contentType,
+ V_ASN1_OBJECT, coid);
+}
+
+int PKCS7_add0_attrib_signing_time(PKCS7_SIGNER_INFO *si, ASN1_TIME *t)
+{
+ if (t == NULL && (t = X509_gmtime_adj(NULL, 0)) == NULL) {
+ PKCS7err(PKCS7_F_PKCS7_ADD0_ATTRIB_SIGNING_TIME,
+ ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+ return PKCS7_add_signed_attribute(si, NID_pkcs9_signingTime,
+ V_ASN1_UTCTIME, t);
+}
+
+int PKCS7_add1_attrib_digest(PKCS7_SIGNER_INFO *si,
+ const unsigned char *md, int mdlen)
+{
+ ASN1_OCTET_STRING *os;
+ os = ASN1_OCTET_STRING_new();
+ if (os == NULL)
+ return 0;
+ if (!ASN1_STRING_set(os, md, mdlen)
+ || !PKCS7_add_signed_attribute(si, NID_pkcs9_messageDigest,
+ V_ASN1_OCTET_STRING, os)) {
+ ASN1_OCTET_STRING_free(os);
+ return 0;
+ }
+ return 1;
}