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https://github.com/Telecominfraproject/OpenCellular.git
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ccaa90f735
The driver programs are useful in quick and dirty fuzz testing of the verification code with blind smartfuzzers like Bunny (http://code.google.com/p/bunny-the-fuzzer/). Also fixes a bug with image generation in kernel_utility. Tests: All existing tests still pass. VerifyKernel() and VerifyFirmware() can successfully verify images generated by {firmware|kernel}_utility. Review URL: http://codereview.chromium.org/975007
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/* Copyright (c) 2010 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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* Utility for aiding fuzz testing of kernel image verification code.
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*/
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#include <stdio.h>
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#include "file_keys.h"
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#include "kernel_image.h"
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#include "utility.h"
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int VerifySignedKernel(const char* image_file,
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const char* firmware_key_file) {
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int error, error_code = 0;
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uint64_t len;
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uint8_t* kernel_blob = BufferFromFile(image_file, &len);
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uint8_t* firmware_key_blob = BufferFromFile(firmware_key_file, &len);
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if (!firmware_key_blob) {
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fprintf(stderr, "Couldn't read pre-processed public firmware key.\n");
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error_code = 1;
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}
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if (!error_code && !kernel_blob) {
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fprintf(stderr, "Couldn't read kernel image or malformed image.\n");
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error_code = 1;
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}
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if (!error_code && (error = VerifyKernel(firmware_key_blob, kernel_blob,
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0))) { /* Trusted Mode. */
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fprintf(stderr, "%s\n", VerifyKernelErrorString(error));
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error_code = 1;
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}
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Free(firmware_key_blob);
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Free(kernel_blob);
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if (error_code)
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return 0;
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return 1;
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}
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int main(int argc, char* argv[]) {
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if (argc != 3) {
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fprintf(stderr, "Usage: %s <image_to_verify> <firmware_keyb>\n", argv[0]);
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return -1;
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}
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if (VerifySignedKernel(argv[1], argv[2])) {
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fprintf(stderr, "Verification SUCCESS!\n");
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return 0;
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}
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else {
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fprintf(stderr, "Verification FAILURE!\n");
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return -1;
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}
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}
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