/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <fstream>
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#include "ufdt_test_overlay.h"
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extern "C" {
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#include "ufdt_overlay.h"
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#include "libufdt_sysdeps.h"
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}
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size_t read_file_to_buf(const char *filename, char** buf) {
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size_t size = 0;
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std::ifstream file(filename, std::ios::binary | std::ios::in);
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if (!file) {
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return size;
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}
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file.seekg(0, file.end);
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size = file.tellg();
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file.seekg(0, std::ios::beg);
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*buf = new char[size];
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file.read(*buf, size);
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return size;
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}
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int verify_overlay_files(const char *final_filename,
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char** overlay_filenames, size_t overlay_count) {
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char* final_buf = nullptr;
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void** overlay_buf_array = new void*[overlay_count];
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struct fdt_header *blob = nullptr;
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int result = 1;
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size_t final_size = 0, overlay_size = 0;
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final_size = read_file_to_buf(final_filename, &final_buf);
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if (final_size == 0) {
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fprintf(stderr, "Cannot load final DTB: %s \n", final_filename);
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goto end;
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}
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for (size_t i = 0; i < overlay_count; i++) {
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overlay_size = read_file_to_buf(overlay_filenames[i],
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reinterpret_cast<char**>(&overlay_buf_array[i]));
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if (overlay_size == 0) {
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fprintf(stderr, "Cannot load DTB Overlay: %s\n", overlay_filenames[i]);
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goto end;
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}
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}
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blob = ufdt_install_blob(final_buf, final_size);
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if (!blob) {
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fprintf(stderr, "ufdt_install_blob() returns null\n");
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goto end;
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}
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result = ufdt_verify_dtbo(blob, final_size, overlay_buf_array, overlay_count);
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if (result != 0) {
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fprintf(stderr, "bad overlay error");
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}
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end:
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// Do not dto_free(blob) - it's the same as final_buf.
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for (size_t i = 0; i < overlay_count; i++) {
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if (overlay_buf_array[i]) dto_free(overlay_buf_array[i]);
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}
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delete[] overlay_buf_array;
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if (final_buf) dto_free(final_buf);
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return result;
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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 <final_file> <overlay_file1> <overlay_file2> ..\n", argv[0]);
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return 1;
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}
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const char *final_file = argv[1];
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char** overlay_file_names = new char*[argc - 2];
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for(int argv_idx = 2; argv_idx < argc; argv_idx++) {
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overlay_file_names[argv_idx - 2] = argv[argv_idx];
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}
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int ret = verify_overlay_files(final_file, overlay_file_names, argc - 2);
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return ret == 0 ? ret : 1;
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}
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