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https://github.com/Telecominfraproject/OpenCellular.git
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0265882a34
The firmware verification code no longer assumes that verification data and firmware data are contiguous and follow each other. Needed for EFI where the actual firmware must be stored in its own firmware volume. BUG=1704 TEST=modified existing tests for the new API, and they still pass Review URL: http://codereview.chromium.org/1578035
66 lines
1.8 KiB
C
66 lines
1.8 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 firmware 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 "firmware_image.h"
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#include "utility.h"
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int VerifySignedFirmware(const char* root_key_file,
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const char* verification_file,
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const char* firmware_file) {
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int error, error_code = 0;
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uint64_t len;
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uint8_t* verification_blob = BufferFromFile(verification_file, &len);
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uint8_t* firmware_blob = BufferFromFile(firmware_file, &len);
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uint8_t* root_key_blob = BufferFromFile(root_key_file, &len);
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if (!root_key_blob) {
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fprintf(stderr, "Couldn't read pre-processed public root key.\n");
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error_code = 1;
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}
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if (!error_code && !firmware_blob) {
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fprintf(stderr, "Couldn't read firmware image.\n");
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error_code = 1;
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}
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if (!error_code && !verification_blob) {
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fprintf(stderr, "Couldn't read verification data image.\n");
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error_code = 1;
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}
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if (!error_code && (error = VerifyFirmware(root_key_blob,
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verification_blob,
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firmware_blob))) {
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fprintf(stderr, "%s\n", VerifyFirmwareErrorString(error));
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error_code = 1;
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}
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Free(root_key_blob);
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Free(firmware_blob);
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if (error_code)
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return 0;
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else
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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 != 4) {
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fprintf(stderr, "Usage: %s <verification blob> <image_to_verify> <root_keyb>"
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"\n", argv[0]);
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return -1;
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}
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if (VerifySignedFirmware(argv[3], argv[1], argv[2])) {
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fprintf(stderr, "Verification SUCCESS!\n");
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return 0;
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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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