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a5b69b02e0
This is part 1 of a series of 4 changes which rearrange the vboot2
files and unit tests so that we can more cleanly switch over from
old-style structs to new-style structs.
No functional changes, just shuffling around code.
BUG=chromium:423882
BRANCH=none
TEST=make runtests && VBOOT2=1 make runtests (works with/withoug VBOOT2 flag)
And build firmware for veyron_pinky.
Change-Id: I170d737bf151a6bafe61cde23b3d2f7a3fae43ce
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/232978
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
/* Copyright (c) 2014 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 keyblocks
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*/
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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 "host_keyblock2.h"
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#include "host_misc.h"
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#include "host_signature2.h"
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int vb2_keyblock_create(struct vb2_keyblock2 **kb_ptr,
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const struct vb2_public_key *data_key,
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const struct vb2_private_key **signing_keys,
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uint32_t signing_key_count,
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uint32_t flags,
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const char *desc)
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{
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struct vb2_keyblock2 kb = {
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.c.magic = VB2_MAGIC_KEYBLOCK2,
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.c.struct_version_major = VB2_KEYBLOCK2_VERSION_MAJOR,
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.c.struct_version_minor = VB2_KEYBLOCK2_VERSION_MAJOR,
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.c.fixed_size = sizeof(kb),
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.flags = flags,
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.sig_count = signing_key_count,
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};
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struct vb2_packed_key2 *key = NULL;
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uint32_t sig_size;
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uint8_t *buf;
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*kb_ptr = NULL;
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/* Determine component sizes */
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if (!desc)
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desc = data_key->desc;
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kb.c.desc_size = vb2_desc_size(desc);
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kb.key_offset = kb.c.fixed_size + kb.c.desc_size;
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if (vb2_sig_size_for_keys(&sig_size, signing_keys, signing_key_count))
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return VB2_KEYBLOCK_CREATE_SIG_SIZE;
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if (vb2_public_key_pack(&key, data_key))
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return VB2_KEYBLOCK_CREATE_DATA_KEY;
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kb.sig_offset = kb.key_offset + key->c.total_size;
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kb.c.total_size = kb.sig_offset + sig_size;
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/* Allocate buffer and copy header and data key */
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buf = calloc(1, kb.c.total_size);
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if (!buf) {
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free(key);
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return VB2_KEYBLOCK_CREATE_ALLOC;
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}
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memcpy(buf, &kb, sizeof(kb));
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if (kb.c.desc_size)
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strcpy((char *)buf + kb.c.fixed_size, desc);
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memcpy(buf + kb.key_offset, key, key->c.total_size);
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free(key);
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/* Sign the keyblock */
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if (vb2_sign_object_multiple(buf, kb.sig_offset, signing_keys,
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signing_key_count)) {
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free(buf);
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return VB2_KEYBLOCK_CREATE_SIGN;
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}
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*kb_ptr = (struct vb2_keyblock2 *)buf;
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return VB2_SUCCESS;
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}
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