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/*
* Copyright 2015 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.
*/
#include "2sysincludes.h"
#include "2common.h"
#include "2guid.h"
#include "2rsa.h"
#include "vb2_common.h"
#include "vb2_struct.h"
#include "host_common.h"
#include "host_key2.h"
#include "host_misc2.h"
#include "file_type.h"
#include "futility.h"
#include "traversal.h"
enum futil_file_type recognize_vb2_key(uint8_t *buf, uint32_t len)
{
struct vb2_public_key pubkey;
struct vb2_private_key *privkey = 0;
/* The pubkey points into buf, so nothing to free */
if (VB2_SUCCESS == vb2_unpack_key(&pubkey, buf, len))
return FILE_TYPE_VB2_PUBKEY;
/* The private key unpacks into new structs */
if (VB2_SUCCESS == vb2_private_key_unpack(&privkey, buf, len)) {
vb2_private_key_free(privkey);
return FILE_TYPE_VB2_PRIVKEY;
}
return FILE_TYPE_UNKNOWN;
}
static void vb2_print_public_key_sha1sum(struct vb2_public_key *key)
{
struct vb2_packed_key *pkey;
uint8_t *digest;
int i;
if (vb2_public_key_pack(&pkey, key)) {
printf("<error>");
return;
}
digest = DigestBuf((uint8_t *)pkey + pkey->key_offset,
pkey->key_size, SHA1_DIGEST_ALGORITHM);
for (i = 0; i < SHA1_DIGEST_SIZE; i++)
printf("%02x", digest[i]);
free(digest);
free(pkey);
}
int futil_cb_show_vb2_pubkey(struct futil_traverse_state_s *state)
{
struct vb2_public_key key;
char guid_str[VB2_GUID_MIN_STRLEN];
const struct vb2_text_vs_enum *entry;
/* The key's members will point into the state buffer after this. Don't
* free anything. */
if (VB2_SUCCESS != vb2_unpack_key(&key, state->my_area->buf,
state->my_area->len))
return 1;
if (VB2_SUCCESS != vb2_guid_to_str(key.guid, guid_str,
sizeof(guid_str)))
return 1;
printf("Public Key file: %s\n", state->in_filename);
printf(" Vboot API: 2.1\n");
printf(" Desc: \"%s\"\n", key.desc);
entry = vb2_lookup_by_num(vb2_text_vs_sig, key.sig_alg);
printf(" Signature Algorithm: %d %s\n", key.sig_alg,
entry ? entry->name : "(invalid)");
entry = vb2_lookup_by_num(vb2_text_vs_hash, key.hash_alg);
printf(" Hash Algorithm: %d %s\n", key.hash_alg,
entry ? entry->name : "(invalid)");
printf(" GUID: %s\n", guid_str);
printf(" Version: 0x%08x\n", key.version);
printf(" Key sha1sum: ");
vb2_print_public_key_sha1sum(&key);
printf("\n");
return 0;
}
int futil_cb_show_vb2_privkey(struct futil_traverse_state_s *state)
{
struct vb2_private_key *key = 0;
char guid_str[VB2_GUID_MIN_STRLEN];
const struct vb2_text_vs_enum *entry;
if (VB2_SUCCESS != vb2_private_key_unpack(&key, state->my_area->buf,
state->my_area->len))
return 1;
if (VB2_SUCCESS != vb2_guid_to_str(&key->guid, guid_str,
sizeof(guid_str))) {
vb2_private_key_free(key);
return 1;
}
printf("Private key file: %s\n", state->in_filename);
printf(" Vboot API: 2.1\n");
printf(" Desc: \"%s\"\n", key->desc ? key->desc : "");
entry = vb2_lookup_by_num(vb2_text_vs_sig, key->sig_alg);
printf(" Signature Algorithm: %d %s\n", key->sig_alg,
entry ? entry->name : "(invalid)");
entry = vb2_lookup_by_num(vb2_text_vs_hash, key->hash_alg);
printf(" Hash Algorithm: %d %s\n", key->hash_alg,
entry ? entry->name : "(invalid)");
printf(" GUID: %s\n", guid_str);
vb2_private_key_free(key);
return 0;
}
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