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f7559e4b46
This replaces calls to the old vboot 1 APIs with their vboot 2.0 equivalents. BUG=chromium:611535 BRANCH=none TEST=make runtests Change-Id: Ieb1a127577c6428c47ac088c3aaa0d0dad6275a8 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/356541 Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
82 lines
2.3 KiB
C
82 lines
2.3 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* Host functions for verified boot.
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*
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* TODO: change all 'return 0', 'return 1' into meaningful return codes.
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*/
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#include <string.h>
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#include "2sysincludes.h"
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#include "2common.h"
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#include "2rsa.h"
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#include "host_common.h"
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#include "host_key2.h"
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#include "cryptolib.h"
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#include "utility.h"
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#include "vb2_common.h"
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#include "vboot_common.h"
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struct vb2_fw_preamble *vb2_create_fw_preamble(
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uint32_t firmware_version,
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const struct vb2_packed_key *kernel_subkey,
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const struct vb2_signature *body_signature,
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const struct vb2_private_key *signing_key,
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uint32_t flags)
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{
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uint32_t signed_size = (sizeof(struct vb2_fw_preamble) +
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kernel_subkey->key_size +
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body_signature->sig_size);
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uint32_t block_size = signed_size +
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vb2_rsa_sig_size(signing_key->sig_alg);
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/* Allocate preamble */
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struct vb2_fw_preamble *h =
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(struct vb2_fw_preamble *)calloc(block_size, 1);
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if (!h)
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return NULL;
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uint8_t *kernel_subkey_dest = (uint8_t *)(h + 1);
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uint8_t *body_sig_dest = kernel_subkey_dest + kernel_subkey->key_size;
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uint8_t *block_sig_dest = body_sig_dest + body_signature->sig_size;
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h->header_version_major = FIRMWARE_PREAMBLE_HEADER_VERSION_MAJOR;
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h->header_version_minor = FIRMWARE_PREAMBLE_HEADER_VERSION_MINOR;
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h->preamble_size = block_size;
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h->firmware_version = firmware_version;
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h->flags = flags;
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/* Copy data key */
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vb2_init_packed_key(&h->kernel_subkey, kernel_subkey_dest,
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kernel_subkey->key_size);
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if (VB2_SUCCESS !=
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vb2_copy_packed_key(&h->kernel_subkey, kernel_subkey)) {
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free(h);
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return NULL;
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}
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/* Copy body signature */
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vb2_init_signature(&h->body_signature,
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body_sig_dest, body_signature->sig_size, 0);
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if (VB2_SUCCESS !=
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vb2_copy_signature(&h->body_signature, body_signature)) {
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free(h);
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return NULL;
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}
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/* Set up signature struct so we can calculate the signature */
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vb2_init_signature(&h->preamble_signature, block_sig_dest,
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vb2_rsa_sig_size(signing_key->sig_alg), signed_size);
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/* Calculate signature */
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struct vb2_signature *sig =
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vb2_calculate_signature((uint8_t *)h, signed_size, signing_key);
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vb2_copy_signature(&h->preamble_signature, sig);
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free(sig);
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/* Return the header */
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return h;
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}
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