Files
OpenCellular/host/lib/host_key.c
Randall Spangler 6e3931d1f6 vboot: Add vb2_unpack_key_buffer
Previously, vb2_unpack_key() actually unpacked a key buffer.  Callers
that had a vb2_packed_key had to typecast it back to a uint8_t buffer to
unpack it.  Rename vb2_unpack_key() to vb2_unpack_key_buffer(), and make
vb2_unpack_key() unpack a vb2_packed_key.

BUG=chromium:611535
BRANCH=none
TEST=make runtests; emerge-kevin coreboot depthcharge;
     emerge-samus and boot it

Change-Id: I9ee38a819c59cc58a72ead78cf5ddf3d0f301ae7
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/400906
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
2016-11-06 02:34:03 +00:00

42 lines
970 B
C

/* Copyright (c) 2011 The Chromium OS Authors. All rights reserved.
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Host functions for keys.
*/
/* TODO: change all 'return 0', 'return 1' into meaningful return codes */
#include <openssl/pem.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include "2sysincludes.h"
#include "2common.h"
#include "2rsa.h"
#include "2sha.h"
#include "host_common.h"
#include "host_misc.h"
#include "vb2_common.h"
#include "vboot_common.h"
int packed_key_looks_ok(const struct vb2_packed_key *key, uint32_t size)
{
struct vb2_public_key pubkey;
if (VB2_SUCCESS != vb2_unpack_key_buffer(&pubkey,
(const uint8_t *)key,
size))
return 0;
if (key->key_version > VB2_MAX_KEY_VERSION) {
/* Currently, TPM only supports 16-bit version */
VB2_DEBUG("%s() - packed key invalid version\n", __func__);
return 0;
}
/* Success */
return 1;
}