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openssl/crypto/pkcs12/p12_add.c
Alessandro Ghedini 3f6c769187 Fix memory leaks and other mistakes on errors 
Reviewed-by: Rich Salz <rsalz@openssl.org>
Reviewed-by: Richard Levitte <levitte@openssl.org>
2015-10-23 19:52:08 +02:00

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8.6 KiB
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/* p12_add.c */
/*
* Written by Dr Stephen N Henson (steve@openssl.org) 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 "internal/cryptlib.h"
#include <openssl/pkcs12.h>
/* Pack an object into an OCTET STRING and turn into a safebag */
PKCS12_SAFEBAG *PKCS12_item_pack_safebag(void *obj, const ASN1_ITEM *it,
int nid1, int nid2)
{
PKCS12_BAGS *bag;
PKCS12_SAFEBAG *safebag;
if ((bag = PKCS12_BAGS_new()) == NULL) {
PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
return NULL;
}
bag->type = OBJ_nid2obj(nid1);
if (!ASN1_item_pack(obj, it, &bag->value.octet)) {
PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
goto err;
}
if ((safebag = PKCS12_SAFEBAG_new()) == NULL) {
PKCS12err(PKCS12_F_PKCS12_ITEM_PACK_SAFEBAG, ERR_R_MALLOC_FAILURE);
goto err;
}
safebag->value.bag = bag;
safebag->type = OBJ_nid2obj(nid2);
return safebag;
err:
PKCS12_BAGS_free(bag);
return NULL;
}
/* Turn PKCS8 object into a keybag */
PKCS12_SAFEBAG *PKCS12_MAKE_KEYBAG(PKCS8_PRIV_KEY_INFO *p8)
{
PKCS12_SAFEBAG *bag;
if ((bag = PKCS12_SAFEBAG_new()) == NULL) {
PKCS12err(PKCS12_F_PKCS12_MAKE_KEYBAG, ERR_R_MALLOC_FAILURE);
return NULL;
}
bag->type = OBJ_nid2obj(NID_keyBag);
bag->value.keybag = p8;
return bag;
}
/* Turn PKCS8 object into a shrouded keybag */
PKCS12_SAFEBAG *PKCS12_MAKE_SHKEYBAG(int pbe_nid, const char *pass,
int passlen, unsigned char *salt,
int saltlen, int iter,
PKCS8_PRIV_KEY_INFO *p8)
{
PKCS12_SAFEBAG *bag;
const EVP_CIPHER *pbe_ciph;
/* Set up the safe bag */
if ((bag = PKCS12_SAFEBAG_new()) == NULL) {
PKCS12err(PKCS12_F_PKCS12_MAKE_SHKEYBAG, ERR_R_MALLOC_FAILURE);
return NULL;
}
bag->type = OBJ_nid2obj(NID_pkcs8ShroudedKeyBag);
pbe_ciph = EVP_get_cipherbynid(pbe_nid);
if (pbe_ciph)
pbe_nid = -1;
if (!(bag->value.shkeybag =
PKCS8_encrypt(pbe_nid, pbe_ciph, pass, passlen, salt, saltlen, iter,
p8))) {
PKCS12err(PKCS12_F_PKCS12_MAKE_SHKEYBAG, ERR_R_MALLOC_FAILURE);
PKCS12_SAFEBAG_free(bag);
return NULL;
}
return bag;
}
/* Turn a stack of SAFEBAGS into a PKCS#7 data Contentinfo */
PKCS7 *PKCS12_pack_p7data(STACK_OF(PKCS12_SAFEBAG) *sk)
{
PKCS7 *p7;
if ((p7 = PKCS7_new()) == NULL) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);
return NULL;
}
p7->type = OBJ_nid2obj(NID_pkcs7_data);
if ((p7->d.data = ASN1_OCTET_STRING_new()) == NULL) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, ERR_R_MALLOC_FAILURE);
goto err;
}
if (!ASN1_item_pack(sk, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), &p7->d.data)) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7DATA, PKCS12_R_CANT_PACK_STRUCTURE);
goto err;
}
return p7;
err:
PKCS7_free(p7);
return NULL;
}
/* Unpack SAFEBAGS from PKCS#7 data ContentInfo */
STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7data(PKCS7 *p7)
{
if (!PKCS7_type_is_data(p7)) {
PKCS12err(PKCS12_F_PKCS12_UNPACK_P7DATA,
PKCS12_R_CONTENT_TYPE_NOT_DATA);
return NULL;
}
return ASN1_item_unpack(p7->d.data, ASN1_ITEM_rptr(PKCS12_SAFEBAGS));
}
/* Turn a stack of SAFEBAGS into a PKCS#7 encrypted data ContentInfo */
PKCS7 *PKCS12_pack_p7encdata(int pbe_nid, const char *pass, int passlen,
unsigned char *salt, int saltlen, int iter,
STACK_OF(PKCS12_SAFEBAG) *bags)
{
PKCS7 *p7;
X509_ALGOR *pbe;
const EVP_CIPHER *pbe_ciph;
if ((p7 = PKCS7_new()) == NULL) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);
return NULL;
}
if (!PKCS7_set_type(p7, NID_pkcs7_encrypted)) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA,
PKCS12_R_ERROR_SETTING_ENCRYPTED_DATA_TYPE);
goto err;
}
pbe_ciph = EVP_get_cipherbynid(pbe_nid);
if (pbe_ciph)
pbe = PKCS5_pbe2_set(pbe_ciph, iter, salt, saltlen);
else
pbe = PKCS5_pbe_set(pbe_nid, iter, salt, saltlen);
if (!pbe) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, ERR_R_MALLOC_FAILURE);
goto err;
}
X509_ALGOR_free(p7->d.encrypted->enc_data->algorithm);
p7->d.encrypted->enc_data->algorithm = pbe;
ASN1_OCTET_STRING_free(p7->d.encrypted->enc_data->enc_data);
if (!(p7->d.encrypted->enc_data->enc_data =
PKCS12_item_i2d_encrypt(pbe, ASN1_ITEM_rptr(PKCS12_SAFEBAGS), pass,
passlen, bags, 1))) {
PKCS12err(PKCS12_F_PKCS12_PACK_P7ENCDATA, PKCS12_R_ENCRYPT_ERROR);
goto err;
}
return p7;
err:
PKCS7_free(p7);
return NULL;
}
STACK_OF(PKCS12_SAFEBAG) *PKCS12_unpack_p7encdata(PKCS7 *p7, const char *pass,
int passlen)
{
if (!PKCS7_type_is_encrypted(p7))
return NULL;
return PKCS12_item_decrypt_d2i(p7->d.encrypted->enc_data->algorithm,
ASN1_ITEM_rptr(PKCS12_SAFEBAGS),
pass, passlen,
p7->d.encrypted->enc_data->enc_data, 1);
}
PKCS8_PRIV_KEY_INFO *PKCS12_decrypt_skey(PKCS12_SAFEBAG *bag,
const char *pass, int passlen)
{
return PKCS8_decrypt(bag->value.shkeybag, pass, passlen);
}
int PKCS12_pack_authsafes(PKCS12 *p12, STACK_OF(PKCS7) *safes)
{
if (ASN1_item_pack(safes, ASN1_ITEM_rptr(PKCS12_AUTHSAFES),
&p12->authsafes->d.data))
return 1;
return 0;
}
STACK_OF(PKCS7) *PKCS12_unpack_authsafes(PKCS12 *p12)
{
if (!PKCS7_type_is_data(p12->authsafes)) {
PKCS12err(PKCS12_F_PKCS12_UNPACK_AUTHSAFES,
PKCS12_R_CONTENT_TYPE_NOT_DATA);
return NULL;
}
return ASN1_item_unpack(p12->authsafes->d.data,
ASN1_ITEM_rptr(PKCS12_AUTHSAFES));
}
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