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/* Copyright 2017 The ChromiumOS Authors
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*
* Test vboot
*/
#include "common.h"
#include "rsa.h"
#include "rsa2048-3.h"
#include "rwsig.h"
#include "test_util.h"
#include "vboot.h"
struct vboot_key {
struct vb21_packed_key vb21_key;
struct rsa_public_key key_data;
};
struct vboot_sig {
struct vb21_signature vb21_sig;
uint8_t sig_data[RSANUMBYTES];
};
static void reset_data(struct vboot_key *k, struct vboot_sig *s)
{
k->vb21_key.c.magic = VB21_MAGIC_PACKED_KEY;
k->vb21_key.key_offset = sizeof(struct vb21_packed_key);
k->vb21_key.key_size = sizeof(rsa_data);
memcpy(&k->key_data, rsa_data, sizeof(rsa_data));
s->vb21_sig.c.magic = VB21_MAGIC_SIGNATURE;
s->vb21_sig.sig_size = RSANUMBYTES;
s->vb21_sig.sig_offset = sizeof(struct vb21_signature);
s->vb21_sig.sig_alg = k->vb21_key.sig_alg;
s->vb21_sig.hash_alg = k->vb21_key.hash_alg;
s->vb21_sig.data_size = CONFIG_RW_SIZE - CONFIG_RW_SIG_SIZE - 32;
memcpy(s->sig_data, sig, sizeof(s->sig_data));
}
static int test_vboot(void)
{
struct vboot_key k;
struct vboot_sig s;
uint8_t data[CONFIG_RW_SIZE];
int len;
int err;
/* Success */
reset_data(&k, &s);
memset(data, 0xff, CONFIG_RW_SIZE);
err = vb21_is_packed_key_valid(&k.vb21_key);
TEST_ASSERT(err == EC_SUCCESS);
err = vb21_is_signature_valid(&s.vb21_sig, &k.vb21_key);
TEST_ASSERT(err == EC_SUCCESS);
len = s.vb21_sig.data_size;
err = vboot_is_padding_valid(data, len,
CONFIG_RW_SIZE - CONFIG_RW_SIG_SIZE);
TEST_ASSERT(err == EC_SUCCESS);
/* Invalid magic */
reset_data(&k, &s);
k.vb21_key.c.magic = VB21_MAGIC_SIGNATURE;
err = vb21_is_packed_key_valid(&k.vb21_key);
TEST_ASSERT(err == EC_ERROR_VBOOT_KEY_MAGIC);
/* Invalid key size */
reset_data(&k, &s);
k.vb21_key.key_size--;
err = vb21_is_packed_key_valid(&k.vb21_key);
TEST_ASSERT(err == EC_ERROR_VBOOT_KEY_SIZE);
/* Invalid magic */
reset_data(&k, &s);
s.vb21_sig.c.magic = VB21_MAGIC_PACKED_KEY;
err = vb21_is_signature_valid(&s.vb21_sig, &k.vb21_key);
TEST_ASSERT(err == EC_ERROR_VBOOT_SIG_MAGIC);
/* Invalid sig size */
reset_data(&k, &s);
s.vb21_sig.sig_size--;
err = vb21_is_signature_valid(&s.vb21_sig, &k.vb21_key);
TEST_ASSERT(err == EC_ERROR_VBOOT_SIG_SIZE);
/* Sig algorithm mismatch */
reset_data(&k, &s);
s.vb21_sig.sig_alg++;
err = vb21_is_signature_valid(&s.vb21_sig, &k.vb21_key);
TEST_ASSERT(err == EC_ERROR_VBOOT_SIG_ALGORITHM);
/* Hash algorithm mismatch */
reset_data(&k, &s);
s.vb21_sig.hash_alg++;
err = vb21_is_signature_valid(&s.vb21_sig, &k.vb21_key);
TEST_ASSERT(err == EC_ERROR_VBOOT_HASH_ALGORITHM);
/* Invalid sig_offset */
reset_data(&k, &s);
s.vb21_sig.sig_offset--;
err = vb21_is_signature_valid(&s.vb21_sig, &k.vb21_key);
TEST_ASSERT(err == EC_ERROR_VBOOT_SIG_OFFSET);
/* Invalid data size */
reset_data(&k, &s);
s.vb21_sig.data_size = CONFIG_RW_SIZE;
err = vb21_is_signature_valid(&s.vb21_sig, &k.vb21_key);
TEST_ASSERT(err == EC_ERROR_VBOOT_DATA_SIZE);
/* Invalid padding */
reset_data(&k, &s);
len = s.vb21_sig.data_size;
data[len] = 0;
err = vboot_is_padding_valid(data, len,
CONFIG_RW_SIZE - CONFIG_RW_SIG_SIZE);
TEST_ASSERT(err == EC_ERROR_INVAL);
/* Invalid padding size */
reset_data(&k, &s);
len = s.vb21_sig.data_size + 1;
err = vboot_is_padding_valid(data, len,
CONFIG_RW_SIZE - CONFIG_RW_SIG_SIZE);
TEST_ASSERT(err == EC_ERROR_INVAL);
/* Padding size is too large */
reset_data(&k, &s);
len = s.vb21_sig.data_size + 64;
err = vboot_is_padding_valid(data, len,
CONFIG_RW_SIZE - CONFIG_RW_SIG_SIZE);
TEST_ASSERT(err == EC_ERROR_INVAL);
return EC_SUCCESS;
}
void run_test(int argc, const char **argv)
{
test_reset();
RUN_TEST(test_vboot);
test_print_result();
}
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