647 lines
14 KiB
C
647 lines
14 KiB
C
/*
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* cbfstool, CLI utility for CBFS file manipulation
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*
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* Copyright (C) 2009 coresystems GmbH
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* written by Patrick Georgi <patrick.georgi@coresystems.de>
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* Copyright (C) 2012 Google, Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <ctype.h>
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#include <unistd.h>
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#include <getopt.h>
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#include "common.h"
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#include "cbfs.h"
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struct command {
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const char *name;
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const char *optstring;
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int (*function) (void);
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};
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int verbose = 0;
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static char *cbfs_name = NULL;
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static char *rom_name = NULL;
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static char *rom_filename = NULL;
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static char *rom_bootblock = NULL;
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static uint32_t rom_type = 0;
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static uint32_t rom_baseaddress = 0;
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static uint32_t rom_loadaddress = 0;
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static uint32_t rom_entrypoint = 0;
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static uint32_t rom_size = 0;
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static uint32_t rom_alignment = 0;
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static uint32_t rom_offset = 0;
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static comp_algo rom_algo = CBFS_COMPRESS_NONE;
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static int cbfs_add(void)
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{
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uint32_t filesize = 0;
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void *rom, *filedata, *cbfsfile;
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if (!rom_filename) {
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fprintf(stderr, "E: You need to specify -f/--filename.\n");
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return 1;
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}
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if (!rom_name) {
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fprintf(stderr, "E: You need to specify -n/--name.\n");
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return 1;
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}
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if (rom_type == 0) {
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fprintf(stderr, "E: You need to specify a valid -t/--type.\n");
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return 1;
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}
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rom = loadrom(cbfs_name);
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if (rom == NULL) {
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fprintf(stderr, "E: Could not load ROM image '%s'.\n",
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cbfs_name);
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return 1;
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}
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filedata = loadfile(rom_filename, &filesize, 0, SEEK_SET);
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if (filedata == NULL) {
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fprintf(stderr, "E: Could not load file '%s'.\n",
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rom_filename);
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free(rom);
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return 1;
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}
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cbfsfile = create_cbfs_file(rom_name, filedata, &filesize,
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rom_type, &rom_baseaddress);
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free(filedata);
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if (add_file_to_cbfs(cbfsfile, filesize, rom_baseaddress)) {
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fprintf(stderr, "E: Adding file '%s' failed.\n", rom_filename);
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free(cbfsfile);
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free(rom);
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return 1;
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}
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if (writerom(cbfs_name, rom, romsize)) {
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free(cbfsfile);
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free(rom);
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return 1;
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}
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free(cbfsfile);
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free(rom);
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return 0;
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}
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static int cbfs_add_payload(void)
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{
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int32_t filesize = 0;
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void *rom, *filedata, *cbfsfile;
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unsigned char *payload;
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if (!rom_filename) {
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fprintf(stderr, "E: You need to specify -f/--filename.\n");
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return 1;
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}
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if (!rom_name) {
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fprintf(stderr, "E: You need to specify -n/--name.\n");
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return 1;
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}
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rom = loadrom(cbfs_name);
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if (rom == NULL) {
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fprintf(stderr, "E: Could not load ROM image '%s'.\n",
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cbfs_name);
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return 1;
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}
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filedata = loadfile(rom_filename, &filesize, 0, SEEK_SET);
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if (filedata == NULL) {
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fprintf(stderr, "E: Could not load file '%s'.\n",
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rom_filename);
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free(rom);
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return 1;
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}
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filesize = parse_elf_to_payload(filedata, &payload, rom_algo);
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if (filesize <= 0) {
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fprintf(stderr, "E: Adding payload '%s' failed.\n",
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rom_filename);
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free(rom);
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return 1;
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}
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cbfsfile = create_cbfs_file(rom_name, payload, &filesize,
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CBFS_COMPONENT_PAYLOAD, &rom_baseaddress);
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free(filedata);
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free(payload);
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if (add_file_to_cbfs(cbfsfile, filesize, rom_baseaddress)) {
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fprintf(stderr, "E: Adding payload '%s' failed.\n",
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rom_filename);
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free(cbfsfile);
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free(rom);
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return 1;
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}
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if (writerom(cbfs_name, rom, romsize)) {
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free(cbfsfile);
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free(rom);
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return 1;
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}
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free(cbfsfile);
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free(rom);
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return 0;
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}
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static int cbfs_add_stage(void)
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{
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uint32_t filesize = 0;
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void *rom, *filedata, *cbfsfile;
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unsigned char *stage;
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if (!rom_filename) {
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fprintf(stderr, "E: You need to specify -f/--filename.\n");
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return 1;
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}
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if (!rom_name) {
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fprintf(stderr, "E: You need to specify -n/--name.\n");
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return 1;
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}
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rom = loadrom(cbfs_name);
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if (rom == NULL) {
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fprintf(stderr, "E: Could not load ROM image '%s'.\n",
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cbfs_name);
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return 1;
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}
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filedata = loadfile(rom_filename, &filesize, 0, SEEK_SET);
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if (filedata == NULL) {
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fprintf(stderr, "E: Could not load file '%s'.\n",
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rom_filename);
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free(rom);
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return 1;
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}
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filesize = parse_elf_to_stage(filedata, &stage, rom_algo, &rom_baseaddress);
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cbfsfile = create_cbfs_file(rom_name, stage, &filesize,
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CBFS_COMPONENT_STAGE, &rom_baseaddress);
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free(filedata);
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free(stage);
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if (add_file_to_cbfs(cbfsfile, filesize, rom_baseaddress)) {
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fprintf(stderr, "E: Adding stage '%s' failed.\n",
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rom_filename);
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free(cbfsfile);
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free(rom);
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return 1;
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}
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if (writerom(cbfs_name, rom, romsize)) {
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free(cbfsfile);
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free(rom);
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return 1;
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}
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free(cbfsfile);
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free(rom);
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return 0;
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}
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static int cbfs_add_flat_binary(void)
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{
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uint32_t filesize = 0;
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uint32_t final_size;
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void *rom, *filedata, *cbfsfile;
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unsigned char *payload;
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comp_func_ptr compress;
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struct cbfs_payload_segment *segs;
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int doffset, len = 0;
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if (!rom_filename) {
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fprintf(stderr, "E: You need to specify -f/--filename.\n");
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return 1;
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}
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if (!rom_name) {
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fprintf(stderr, "E: You need to specify -n/--name.\n");
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return 1;
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}
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if (rom_loadaddress == 0) {
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fprintf(stderr, "E: You need to specify a valid "
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"-l/--load-address.\n");
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return 1;
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}
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if (rom_entrypoint == 0) {
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fprintf(stderr, "E: You need to specify a valid "
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"-e/--entry-point.\n");
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return 1;
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}
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compress = compression_function(rom_algo);
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if (!compress)
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return 1;
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rom = loadrom(cbfs_name);
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if (rom == NULL) {
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fprintf(stderr, "E: Could not load ROM image '%s'.\n",
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cbfs_name);
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return 1;
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}
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filedata = loadfile(rom_filename, &filesize, 0, SEEK_SET);
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if (filedata == NULL) {
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fprintf(stderr, "E: Could not load file '%s'.\n",
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rom_filename);
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free(rom);
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return 1;
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}
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/* FIXME compressed file size might be bigger than original file */
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payload = calloc((2 * sizeof(struct cbfs_payload_segment)) + filesize, 1);
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if (payload == NULL) {
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fprintf(stderr, "E: Could not allocate memory.\n");
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free(filedata);
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free(rom);
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return 1;
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}
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segs = (struct cbfs_payload_segment *)payload;
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doffset = (2 * sizeof(struct cbfs_payload_segment));
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/* Prepare code segment */
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segs[0].type = PAYLOAD_SEGMENT_CODE;
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segs[0].load_addr = (uint64_t)htonll(rom_loadaddress);
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segs[0].mem_len = (uint32_t)htonl(filesize);
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segs[0].offset = (uint32_t)htonl(doffset);
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compress(filedata, filesize, (char *)(payload + doffset), &len);
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segs[0].compression = htonl(rom_algo);
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segs[0].len = htonl(len);
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if ((unsigned int)len >= filesize) {
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segs[0].compression = 0;
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segs[0].len = htonl(filesize);
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memcpy((char *)(payload + doffset), filedata, filesize);
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}
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/* prepare entry point segment */
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segs[1].type = PAYLOAD_SEGMENT_ENTRY;
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segs[1].load_addr = (uint64_t)htonll(rom_entrypoint);
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final_size = doffset + ntohl(segs[0].len);
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cbfsfile =
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create_cbfs_file(rom_name, payload, &final_size,
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CBFS_COMPONENT_PAYLOAD, &rom_baseaddress);
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free(filedata);
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free(payload);
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if (add_file_to_cbfs(cbfsfile, final_size, rom_baseaddress)) {
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fprintf(stderr, "E: Adding payload '%s' failed.\n",
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rom_filename);
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free(cbfsfile);
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free(rom);
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return 1;
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}
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if (writerom(cbfs_name, rom, romsize)) {
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free(cbfsfile);
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free(rom);
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return 1;
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}
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free(cbfsfile);
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free(rom);
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return 0;
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}
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static int cbfs_remove(void)
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{
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void *rom;
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if (!rom_name) {
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fprintf(stderr, "E: You need to specify -n/--name.\n");
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return 1;
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}
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rom = loadrom(cbfs_name);
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if (rom == NULL) {
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fprintf(stderr, "E: Could not load ROM image '%s'.\n",
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cbfs_name);
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return 1;
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}
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if (remove_file_from_cbfs(rom_name)) {
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fprintf(stderr, "E: Removing file '%s' failed.\n",
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rom_name);
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free(rom);
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return 1;
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}
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if (writerom(cbfs_name, rom, romsize)) {
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free(rom);
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return 1;
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}
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free(rom);
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return 0;
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}
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static int cbfs_create(void)
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{
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if (rom_size == 0) {
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fprintf(stderr, "E: You need to specify a valid -s/--size.\n");
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return 1;
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}
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if (!rom_bootblock) {
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fprintf(stderr, "E: You need to specify -b/--bootblock.\n");
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return 1;
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}
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if (arch == CBFS_ARCHITECTURE_UNKNOWN) {
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fprintf(stderr, "E: You need to specify -m/--machine arch\n");
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return 1;
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}
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return create_cbfs_image(cbfs_name, rom_size, rom_bootblock,
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rom_alignment, rom_offset);
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}
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static int cbfs_locate(void)
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{
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uint32_t filesize, location;
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if (!rom_filename) {
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fprintf(stderr, "E: You need to specify -f/--filename.\n");
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return 1;
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}
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if (!rom_name) {
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fprintf(stderr, "E: You need to specify -n/--name.\n");
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return 1;
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}
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filesize = getfilesize(rom_filename);
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location = cbfs_find_location(cbfs_name, filesize,
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rom_name, rom_alignment);
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printf("%x\n", location);
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return location == 0 ? 1 : 0;
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}
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static int cbfs_print(void)
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{
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void *rom;
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rom = loadrom(cbfs_name);
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if (rom == NULL) {
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fprintf(stderr, "E: Could not load ROM image '%s'.\n",
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cbfs_name);
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return 1;
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}
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print_cbfs_directory(cbfs_name);
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free(rom);
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return 0;
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}
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static int cbfs_extract(void)
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{
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void *rom;
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int ret;
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if (!rom_filename) {
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fprintf(stderr, "E: You need to specify -f/--filename.\n");
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return 1;
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}
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if (!rom_name) {
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fprintf(stderr, "E: You need to specify -n/--name.\n");
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return 1;
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}
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rom = loadrom(cbfs_name);
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if (rom == NULL) {
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fprintf(stderr, "E: Could not load ROM image '%s'.\n",
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cbfs_name);
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return 1;
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}
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ret = extract_file_from_cbfs(cbfs_name, rom_name, rom_filename);
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free(rom);
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return ret;
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}
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static const struct command commands[] = {
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{"add", "f:n:t:b:h?", cbfs_add},
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{"add-payload", "f:n:t:c:b:h?", cbfs_add_payload},
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{"add-stage", "f:n:t:c:b:h?", cbfs_add_stage},
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{"add-flat-binary", "f:n:l:e:c:b:h?", cbfs_add_flat_binary},
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{"remove", "n:h?", cbfs_remove},
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{"create", "s:B:a:o:m:h?", cbfs_create},
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{"locate", "f:n:a:h?", cbfs_locate},
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{"print", "h?", cbfs_print},
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{"extract", "n:f:h?", cbfs_extract},
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};
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static struct option long_options[] = {
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{"name", required_argument, 0, 'n' },
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{"type", required_argument, 0, 't' },
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{"compression", required_argument, 0, 'c' },
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{"base-address", required_argument, 0, 'b' },
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{"load-address", required_argument, 0, 'l' },
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{"entry-point", required_argument, 0, 'e' },
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{"size", required_argument, 0, 's' },
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{"bootblock", required_argument, 0, 'B' },
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{"alignment", required_argument, 0, 'a' },
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{"offset", required_argument, 0, 'o' },
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{"file", required_argument, 0, 'f' },
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{"arch", required_argument, 0, 'm' },
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{"verbose", no_argument, 0, 'v' },
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{"help", no_argument, 0, 'h' },
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{NULL, 0, 0, 0 }
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};
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static void usage(char *name)
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{
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printf
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("cbfstool: Management utility for CBFS formatted ROM images\n\n"
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"USAGE:\n" " %s [-h]\n"
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" %s FILE COMMAND [PARAMETERS]...\n\n" "OPTIONs:\n"
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" -h Display this help message\n\n"
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"COMMANDs:\n"
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" add -f FILE -n NAME -t TYPE [-b base-address] "
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"Add a component\n"
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" add-payload -f FILE -n NAME [-c compression] [-b base] "
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"Add a payload to the ROM\n"
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" add-stage -f FILE -n NAME [-c compression] [-b base] "
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"Add a stage to the ROM\n"
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" add-flat-binary -f FILE -n NAME -l load-address \\\n"
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" -e entry-point [-c compression] [-b base] "
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"Add a 32bit flat mode binary\n"
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" remove -n NAME "
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"Remove a component\n"
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" create -s size -B bootblock -m ARCH [-a align] [-o offset] "
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"Create a ROM file\n"
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" locate -f FILE -n NAME -a align "
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"Find a place for a file of that size\n"
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" print "
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"Show the contents of the ROM\n"
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" extract -n NAME -f FILE "
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"Extracts a raw payload from ROM\n"
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"\n"
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"ARCHes:\n"
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" armv7, x86\n"
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"TYPEs:\n", name, name
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);
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print_supported_filetypes();
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}
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/* Small, OS/libc independent runtime check for endianess */
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int host_bigendian = 0;
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static void which_endian(void)
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{
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static const uint32_t inttest = 0x12345678;
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uint8_t inttest_lsb = *(uint8_t *)&inttest;
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if (inttest_lsb == 0x12) {
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host_bigendian = 1;
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}
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}
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int main(int argc, char **argv)
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{
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size_t i;
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int c;
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if (argc < 3) {
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usage(argv[0]);
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return 1;
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}
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which_endian();
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cbfs_name = argv[1];
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char *cmd = argv[2];
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optind += 2;
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for (i = 0; i < ARRAY_SIZE(commands); i++) {
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if (strcmp(cmd, commands[i].name) != 0)
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continue;
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while (1) {
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char *suffix = NULL;
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int option_index = 0;
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c = getopt_long(argc, argv, commands[i].optstring,
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long_options, &option_index);
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if (c == -1)
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break;
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/* filter out illegal long options */
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if (index(commands[i].optstring, c) == NULL) {
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/* TODO maybe print actual long option instead */
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printf("%s: invalid option -- '%c'\n",
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argv[0], c);
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c = '?';
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}
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switch(c) {
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case 'n':
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rom_name = optarg;
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break;
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case 't':
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if (intfiletype(optarg) != ((uint64_t) - 1))
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rom_type = intfiletype(optarg);
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else
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rom_type = strtoul(optarg, NULL, 0);
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if (rom_type == 0)
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printf("W: Unknown type '%s' ignored\n",
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optarg);
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break;
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case 'c':
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if (!strncasecmp(optarg, "lzma", 5))
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rom_algo = CBFS_COMPRESS_LZMA;
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else if (!strncasecmp(optarg, "none", 5))
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rom_algo = CBFS_COMPRESS_NONE;
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else
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printf("W: Unknown compression '%s'"
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" ignored.\n", optarg);
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break;
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case 'b':
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rom_baseaddress = strtoul(optarg, NULL, 0);
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break;
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case 'l':
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rom_loadaddress = strtoul(optarg, NULL, 0);
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break;
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case 'e':
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rom_entrypoint = strtoul(optarg, NULL, 0);
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break;
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case 's':
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rom_size = strtoul(optarg, &suffix, 0);
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if (tolower(suffix[0])=='k') {
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rom_size *= 1024;
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}
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if (tolower(suffix[0])=='m') {
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rom_size *= 1024 * 1024;
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}
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case 'B':
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rom_bootblock = optarg;
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break;
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case 'a':
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rom_alignment = strtoul(optarg, NULL, 0);
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break;
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case 'o':
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rom_offset = strtoul(optarg, NULL, 0);
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break;
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case 'f':
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rom_filename = optarg;
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break;
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case 'v':
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verbose++;
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break;
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case 'm':
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arch = string_to_arch(optarg);
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break;
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case 'h':
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case '?':
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usage(argv[0]);
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return 1;
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default:
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break;
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}
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}
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return commands[i].function();
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}
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printf("Unknown command '%s'.\n", cmd);
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usage(argv[0]);
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return 1;
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}
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