openssl/crypto/pkcs12/p12_attr.c

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/* p12_attr.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
* project 1999.
*/
/* ====================================================================
* Copyright (c) 1999 The OpenSSL Project. All rights reserved.
*
* 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 above 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 acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED 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 OpenSSL PROJECT OR
* ITS 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.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
#include <stdio.h>
#include "cryptlib.h"
#include <openssl/pkcs12.h>
/* Add a local keyid to a safebag */
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int PKCS12_add_localkeyid (PKCS12_SAFEBAG *bag, unsigned char *name,
int namelen)
{
X509_ATTRIBUTE *attrib;
ASN1_BMPSTRING *oct;
ASN1_TYPE *keyid;
if (!(keyid = ASN1_TYPE_new ())) {
PKCS12err(PKCS12_F_PKCS12_ADD_LOCALKEYID, ERR_R_MALLOC_FAILURE);
return 0;
}
keyid->type = V_ASN1_OCTET_STRING;
if (!(oct = M_ASN1_OCTET_STRING_new())) {
PKCS12err(PKCS12_F_PKCS12_ADD_LOCALKEYID, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!M_ASN1_OCTET_STRING_set(oct, name, namelen)) {
PKCS12err(PKCS12_F_PKCS12_ADD_LOCALKEYID, ERR_R_MALLOC_FAILURE);
return 0;
}
keyid->value.octet_string = oct;
if (!(attrib = X509_ATTRIBUTE_new ())) {
PKCS12err(PKCS12_F_PKCS12_ADD_LOCALKEYID, ERR_R_MALLOC_FAILURE);
return 0;
}
attrib->object = OBJ_nid2obj(NID_localKeyID);
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if (!(attrib->value.set = sk_ASN1_TYPE_new(NULL))) {
PKCS12err(PKCS12_F_PKCS12_ADD_LOCALKEYID, ERR_R_MALLOC_FAILURE);
return 0;
}
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sk_ASN1_TYPE_push (attrib->value.set,keyid);
attrib->set = 1;
if (!bag->attrib && !(bag->attrib = sk_X509_ATTRIBUTE_new (NULL))) {
PKCS12err(PKCS12_F_PKCS12_ADD_LOCALKEYID, ERR_R_MALLOC_FAILURE);
return 0;
}
sk_X509_ATTRIBUTE_push (bag->attrib, attrib);
return 1;
}
/* Add key usage to PKCS#8 structure */
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int PKCS8_add_keyusage (PKCS8_PRIV_KEY_INFO *p8, int usage)
{
X509_ATTRIBUTE *attrib;
ASN1_BIT_STRING *bstr;
ASN1_TYPE *keyid;
unsigned char us_val;
us_val = (unsigned char) usage;
if (!(keyid = ASN1_TYPE_new ())) {
PKCS12err(PKCS12_F_PKCS8_ADD_KEYUSAGE, ERR_R_MALLOC_FAILURE);
return 0;
}
keyid->type = V_ASN1_BIT_STRING;
if (!(bstr = M_ASN1_BIT_STRING_new())) {
PKCS12err(PKCS12_F_PKCS8_ADD_KEYUSAGE, ERR_R_MALLOC_FAILURE);
return 0;
}
if (!M_ASN1_BIT_STRING_set(bstr, &us_val, 1)) {
PKCS12err(PKCS12_F_PKCS8_ADD_KEYUSAGE, ERR_R_MALLOC_FAILURE);
return 0;
}
keyid->value.bit_string = bstr;
if (!(attrib = X509_ATTRIBUTE_new ())) {
PKCS12err(PKCS12_F_PKCS8_ADD_KEYUSAGE, ERR_R_MALLOC_FAILURE);
return 0;
}
attrib->object = OBJ_nid2obj(NID_key_usage);
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if (!(attrib->value.set = sk_ASN1_TYPE_new(NULL))) {
PKCS12err(PKCS12_F_PKCS8_ADD_KEYUSAGE, ERR_R_MALLOC_FAILURE);
return 0;
}
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sk_ASN1_TYPE_push (attrib->value.set,keyid);
attrib->set = 1;
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if (!p8->attributes
&& !(p8->attributes = sk_X509_ATTRIBUTE_new (NULL))) {
PKCS12err(PKCS12_F_PKCS8_ADD_KEYUSAGE, ERR_R_MALLOC_FAILURE);
return 0;
}
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sk_X509_ATTRIBUTE_push (p8->attributes, attrib);
return 1;
}
/* Add a friendlyname to a safebag */
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int PKCS12_add_friendlyname_asc (PKCS12_SAFEBAG *bag, const char *name,
int namelen)
{
unsigned char *uniname;
int ret, unilen;
if (!asc2uni(name, &uniname, &unilen)) {
PKCS12err(PKCS12_F_PKCS12_ADD_FRIENDLYNAME_ASC,
ERR_R_MALLOC_FAILURE);
return 0;
}
ret = PKCS12_add_friendlyname_uni (bag, uniname, unilen);
OPENSSL_free(uniname);
return ret;
}
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int PKCS12_add_friendlyname_uni (PKCS12_SAFEBAG *bag,
const unsigned char *name, int namelen)
{
X509_ATTRIBUTE *attrib;
ASN1_BMPSTRING *bmp;
ASN1_TYPE *fname;
/* Zap ending double null if included */
if(!name[namelen - 1] && !name[namelen - 2]) namelen -= 2;
if (!(fname = ASN1_TYPE_new ())) {
PKCS12err(PKCS12_F_PKCS12_ADD_FRIENDLYNAME_UNI,
ERR_R_MALLOC_FAILURE);
return 0;
}
fname->type = V_ASN1_BMPSTRING;
if (!(bmp = M_ASN1_BMPSTRING_new())) {
PKCS12err(PKCS12_F_PKCS12_ADD_FRIENDLYNAME_UNI,
ERR_R_MALLOC_FAILURE);
return 0;
}
if (!(bmp->data = OPENSSL_malloc (namelen))) {
PKCS12err(PKCS12_F_PKCS12_ADD_FRIENDLYNAME_UNI,
ERR_R_MALLOC_FAILURE);
return 0;
}
memcpy (bmp->data, name, namelen);
bmp->length = namelen;
fname->value.bmpstring = bmp;
if (!(attrib = X509_ATTRIBUTE_new ())) {
PKCS12err(PKCS12_F_PKCS12_ADD_FRIENDLYNAME_UNI,
ERR_R_MALLOC_FAILURE);
return 0;
}
attrib->object = OBJ_nid2obj(NID_friendlyName);
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if (!(attrib->value.set = sk_ASN1_TYPE_new(NULL))) {
PKCS12err(PKCS12_F_PKCS12_ADD_FRIENDLYNAME,
ERR_R_MALLOC_FAILURE);
return 0;
}
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sk_ASN1_TYPE_push (attrib->value.set,fname);
attrib->set = 1;
if (!bag->attrib && !(bag->attrib = sk_X509_ATTRIBUTE_new (NULL))) {
PKCS12err(PKCS12_F_PKCS12_ADD_FRIENDLYNAME_UNI,
ERR_R_MALLOC_FAILURE);
return 0;
}
sk_X509_ATTRIBUTE_push (bag->attrib, attrib);
return PKCS12_OK;
}
ASN1_TYPE *PKCS12_get_attr_gen (STACK_OF(X509_ATTRIBUTE) *attrs, int attr_nid)
{
X509_ATTRIBUTE *attrib;
int i;
if (!attrs) return NULL;
for (i = 0; i < sk_X509_ATTRIBUTE_num (attrs); i++) {
attrib = sk_X509_ATTRIBUTE_value (attrs, i);
if (OBJ_obj2nid (attrib->object) == attr_nid) {
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if (sk_ASN1_TYPE_num (attrib->value.set))
return sk_ASN1_TYPE_value(attrib->value.set, 0);
else return NULL;
}
}
return NULL;
}
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char *PKCS12_get_friendlyname(PKCS12_SAFEBAG *bag)
{
ASN1_TYPE *atype;
if (!(atype = PKCS12_get_attr(bag, NID_friendlyName))) return NULL;
if (atype->type != V_ASN1_BMPSTRING) return NULL;
return uni2asc(atype->value.bmpstring->data,
atype->value.bmpstring->length);
}