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/* Copyright (c) 2010 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.
*
* Tests for kernel image library.
*/
#include <stdio.h>
#include <stdlib.h>
#include "cryptolib.h"
#include "file_keys.h"
#include "kernel_image.h"
#include "test_common.h"
#include "utility.h"
/* Normal Kernel Blob Verification Tests. */
void VerifyKernelTest(uint8_t* kernel_blob, uint8_t* firmware_key_blob) {
TEST_EQ(VerifyKernel(firmware_key_blob, kernel_blob, DEV_MODE_ENABLED),
VERIFY_KERNEL_SUCCESS,
"Normal Kernel Blob Verification (Dev Mode)");
TEST_EQ(VerifyKernel(firmware_key_blob, kernel_blob, DEV_MODE_DISABLED),
VERIFY_KERNEL_SUCCESS,
"Normal Kernel Blob Verification (Trusted)");
}
/* Normal KernelImage Verification Tests. */
void VerifyKernelImageTest(KernelImage* image,
RSAPublicKey* firmware_key) {
TEST_EQ(VerifyKernelImage(firmware_key, image, DEV_MODE_ENABLED),
VERIFY_KERNEL_SUCCESS,
"Normal KernelImage Verification (Dev Mode)");
TEST_EQ(VerifyKernelImage(firmware_key, image, DEV_MODE_DISABLED),
VERIFY_KERNEL_SUCCESS,
"Normal KernelImage Verification (Trusted)");
}
/* Tampered KernelImage Verification Tests. */
void VerifyKernelImageTamperTest(KernelImage* image,
RSAPublicKey* firmware_key) {
image->bootloader_offset ^= 0xFF;
TEST_EQ(VerifyKernelImage(firmware_key, image, DEV_MODE_ENABLED),
VERIFY_KERNEL_PREAMBLE_SIGNATURE_FAILED,
"KernelImage Config Tamper Verification (Dev Mode)");
TEST_EQ(VerifyKernelImage(firmware_key, image, DEV_MODE_DISABLED),
VERIFY_KERNEL_PREAMBLE_SIGNATURE_FAILED,
"KernelImage Config Tamper Verification (Trusted)");
image->bootloader_offset ^= 0xFF;
image->kernel_data[0] = 'T';
TEST_EQ(VerifyKernelImage(firmware_key, image, DEV_MODE_ENABLED),
VERIFY_KERNEL_SIGNATURE_FAILED,
"KernelImage Tamper Verification (Dev Mode)");
TEST_EQ(VerifyKernelImage(firmware_key, image, DEV_MODE_DISABLED),
VERIFY_KERNEL_SIGNATURE_FAILED,
"KernelImage Tamper Verification (Trusted)");
image->kernel_data[0] = 'K';
image->kernel_key_signature[0] = 0xFF;
image->kernel_key_signature[1] = 0x00;
TEST_EQ(VerifyKernelImage(firmware_key, image, DEV_MODE_ENABLED),
VERIFY_KERNEL_SUCCESS,
"KernelImage Key Signature Tamper Verification (Dev Mode)");
TEST_EQ(VerifyKernelImage(firmware_key, image, DEV_MODE_DISABLED),
VERIFY_KERNEL_KEY_SIGNATURE_FAILED,
"KernelImage Key Signature Tamper Verification (Trusted)");
}
int main(int argc, char* argv[]) {
uint64_t len;
const char* firmware_key_file = NULL;
const char* kernel_key_file = NULL;
uint8_t* kernel_sign_key_buf = NULL;
uint8_t* firmware_key_blob = NULL;
uint8_t* kernel_blob = NULL;
uint64_t kernel_blob_len = 0;
KernelImage* image = NULL;
RSAPublicKey* firmware_key = NULL;
int error_code = 0;
if(argc != 7) {
fprintf(stderr, "Usage: %s <firmware signing algorithm> " /* argv[1] */
"<kernel signing algorithm> " /* argv[2] */
"<firmware key> " /* argv[3] */
"<processed firmware pubkey> " /* argv[4] */
"<kernel signing key> " /* argv[5] */
"<processed kernel signing key>\n", /* argv[6] */
argv[0]);
return -1;
}
/* Read verification keys and create a test image. */
firmware_key = RSAPublicKeyFromFile(argv[4]);
firmware_key_blob = BufferFromFile(argv[4], &len);
kernel_sign_key_buf = BufferFromFile(argv[6], &len);
firmware_key_file = argv[3];
kernel_key_file = argv[5];
if (!firmware_key || !kernel_sign_key_buf || !kernel_sign_key_buf) {
error_code = 1;
goto failure;
}
image = GenerateTestKernelImage(atoi(argv[1]),
atoi(argv[2]),
kernel_sign_key_buf,
1, /* Kernel Key Version */
1, /* Kernel Version */
1000, /* Kernel Size */
firmware_key_file,
kernel_key_file,
'K');
if (!image) {
error_code = 1;
goto failure;
}
kernel_blob = GetKernelBlob(image, &kernel_blob_len);
/* Test Kernel blob verify operations. */
VerifyKernelTest(kernel_blob, firmware_key_blob);
/* Test KernelImage verify operations. */
VerifyKernelImageTest(image, firmware_key);
VerifyKernelImageTamperTest(image, firmware_key);
if (!gTestSuccess)
error_code = 255;
failure:
Free(kernel_blob);
KernelImageFree(image);
Free(kernel_sign_key_buf);
Free(firmware_key_blob);
RSAPublicKeyFree(firmware_key);
return error_code;
}
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