739 lines
18 KiB
C
739 lines
18 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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#include "cbfs_image.h"
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#include "fit.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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static struct param {
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char *cbfs_name;
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char *name;
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char *filename;
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char *bootblock;
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char *ignore_section;
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uint64_t u64val;
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uint32_t type;
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uint32_t baseaddress;
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uint32_t baseaddress_assigned;
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uint32_t loadaddress;
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uint32_t headeroffset;
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uint32_t headeroffset_assigned;
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uint32_t entrypoint;
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uint32_t size;
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uint32_t alignment;
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uint32_t pagesize;
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uint32_t offset;
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uint32_t top_aligned;
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uint32_t arch;
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int fit_empty_entries;
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comp_algo algo;
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/* for linux payloads */
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char *initrd;
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char *cmdline;
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} param = {
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/* All variables not listed are initialized as zero. */
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.arch = CBFS_ARCHITECTURE_UNKNOWN,
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.algo = CBFS_COMPRESS_NONE,
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};
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typedef int (*convert_buffer_t)(struct buffer *buffer, uint32_t *offset);
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static int cbfs_add_integer_component(const char *cbfs_name,
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const char *name,
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uint64_t u64val,
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uint32_t offset) {
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struct cbfs_image image;
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struct buffer buffer;
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int i, ret = 1;
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if (!name) {
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ERROR("You need to specify -n/--name.\n");
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return 1;
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}
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if (buffer_create(&buffer, 8, name) != 0)
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return 1;
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for (i = 0; i < 8; i++)
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buffer.data[i] = (u64val >> i*8) & 0xff;
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if (cbfs_image_from_file(&image, cbfs_name) != 0) {
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ERROR("Could not load ROM image '%s'.\n", cbfs_name);
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buffer_delete(&buffer);
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return 1;
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}
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if (cbfs_get_entry(&image, name)) {
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ERROR("'%s' already in ROM image.\n", name);
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goto done;
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}
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if (cbfs_add_entry(&image, &buffer, name, CBFS_COMPONENT_RAW, param.baseaddress) != 0) {
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ERROR("Failed to add %llu into ROM image as '%s'.\n", (long long unsigned)u64val, name);
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goto done;
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}
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if (cbfs_image_write_file(&image, cbfs_name) == 0)
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ret = 0;
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done:
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buffer_delete(&buffer);
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cbfs_image_delete(&image);
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return ret;
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}
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static int cbfs_add_component(const char *cbfs_name,
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const char *filename,
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const char *name,
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uint32_t type,
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uint32_t offset,
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convert_buffer_t convert) {
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struct cbfs_image image;
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struct buffer buffer;
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if (!filename) {
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ERROR("You need to specify -f/--filename.\n");
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return 1;
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}
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if (!name) {
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ERROR("You need to specify -n/--name.\n");
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return 1;
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}
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if (type == 0) {
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ERROR("You need to specify a valid -t/--type.\n");
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return 1;
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}
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if (cbfs_image_from_file(&image, cbfs_name) != 0) {
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ERROR("Could not load ROM image '%s'.\n", cbfs_name);
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return 1;
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}
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if (buffer_from_file(&buffer, filename) != 0) {
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ERROR("Could not load file '%s'.\n", filename);
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cbfs_image_delete(&image);
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return 1;
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}
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if (convert && convert(&buffer, &offset) != 0) {
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ERROR("Failed to parse file '%s'.\n", filename);
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buffer_delete(&buffer);
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cbfs_image_delete(&image);
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return 1;
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}
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if (cbfs_get_entry(&image, name)) {
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ERROR("'%s' already in ROM image.\n", name);
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buffer_delete(&buffer);
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cbfs_image_delete(&image);
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return 1;
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}
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if (cbfs_add_entry(&image, &buffer, name, type, offset) != 0) {
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ERROR("Failed to add '%s' into ROM image.\n", filename);
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buffer_delete(&buffer);
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cbfs_image_delete(&image);
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return 1;
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}
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if (cbfs_image_write_file(&image, cbfs_name) != 0) {
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buffer_delete(&buffer);
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cbfs_image_delete(&image);
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return 1;
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}
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buffer_delete(&buffer);
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cbfs_image_delete(&image);
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return 0;
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}
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static int cbfstool_convert_mkstage(struct buffer *buffer, uint32_t *offset)
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{
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struct buffer output;
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int ret;
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ret = parse_elf_to_stage(buffer, &output, param.arch, param.algo,
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offset, param.ignore_section);
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if (ret != 0)
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return -1;
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buffer_delete(buffer);
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// direct assign, no dupe.
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memcpy(buffer, &output, sizeof(*buffer));
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return 0;
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}
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static int cbfstool_convert_mkpayload(struct buffer *buffer, uint32_t *offset) {
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struct buffer output;
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int ret;
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/* per default, try and see if payload is an ELF binary */
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ret = parse_elf_to_payload(buffer, &output, param.arch, param.algo);
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/* If it's not an ELF, see if it's a UEFI FV */
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if (ret != 0)
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ret = parse_fv_to_payload(buffer, &output, param.algo);
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/* If it's neither ELF nor UEFI Fv, try bzImage */
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if (ret != 0)
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ret = parse_bzImage_to_payload(buffer, &output,
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param.initrd, param.cmdline, param.algo);
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/* Not a supported payload type */
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if (ret != 0) {
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ERROR("Not a supported payload type (ELF / FV).\n");
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return -1;
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}
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buffer_delete(buffer);
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// direct assign, no dupe.
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memcpy(buffer, &output, sizeof(*buffer));
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return 0;
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}
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static int cbfstool_convert_mkflatpayload(struct buffer *buffer,
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uint32_t *offset) {
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struct buffer output;
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if (parse_flat_binary_to_payload(buffer, &output,
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param.loadaddress,
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param.entrypoint,
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param.algo) != 0) {
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return -1;
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}
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buffer_delete(buffer);
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// direct assign, no dupe.
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memcpy(buffer, &output, sizeof(*buffer));
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return 0;
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}
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static int cbfs_add(void)
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{
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return cbfs_add_component(param.cbfs_name,
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param.filename,
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param.name,
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param.type,
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param.baseaddress,
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NULL);
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}
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static int cbfs_add_stage(void)
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{
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return cbfs_add_component(param.cbfs_name,
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param.filename,
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param.name,
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CBFS_COMPONENT_STAGE,
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param.baseaddress,
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cbfstool_convert_mkstage);
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}
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static int cbfs_add_payload(void)
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{
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return cbfs_add_component(param.cbfs_name,
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param.filename,
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param.name,
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CBFS_COMPONENT_PAYLOAD,
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param.baseaddress,
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cbfstool_convert_mkpayload);
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}
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static int cbfs_add_flat_binary(void)
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{
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if (param.loadaddress == 0) {
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ERROR("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 (param.entrypoint == 0) {
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ERROR("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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return cbfs_add_component(param.cbfs_name,
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param.filename,
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param.name,
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CBFS_COMPONENT_PAYLOAD,
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param.baseaddress,
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cbfstool_convert_mkflatpayload);
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}
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static int cbfs_add_integer(void)
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{
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return cbfs_add_integer_component(param.cbfs_name,
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param.name,
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param.u64val,
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param.baseaddress);
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}
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static int cbfs_remove(void)
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{
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struct cbfs_image image;
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if (!param.name) {
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ERROR("You need to specify -n/--name.\n");
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return 1;
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}
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if (cbfs_image_from_file(&image, param.cbfs_name) != 0) {
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ERROR("Could not load ROM image '%s'.\n",
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param.cbfs_name);
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return 1;
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}
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if (cbfs_remove_entry(&image, param.name) != 0) {
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ERROR("Removing file '%s' failed.\n",
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param.name);
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cbfs_image_delete(&image);
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return 1;
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}
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if (cbfs_image_write_file(&image, param.cbfs_name) != 0) {
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cbfs_image_delete(&image);
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return 1;
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}
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cbfs_image_delete(&image);
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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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struct cbfs_image image;
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struct buffer bootblock;
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if (param.size == 0) {
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ERROR("You need to specify a valid -s/--size.\n");
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return 1;
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}
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if (!param.bootblock) {
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ERROR("You need to specify -B/--bootblock.\n");
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return 1;
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}
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if (param.arch == CBFS_ARCHITECTURE_UNKNOWN) {
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ERROR("You need to specify -m/--machine arch.\n");
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return 1;
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}
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if (buffer_from_file(&bootblock, param.bootblock) != 0) {
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return 1;
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}
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// Setup default boot offset and header offset.
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if (!param.baseaddress_assigned) {
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// put boot block before end of ROM.
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param.baseaddress = param.size - bootblock.size;
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DEBUG("bootblock in end of ROM.\n");
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}
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if (!param.headeroffset_assigned) {
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// Put header before bootblock, and make a reference in end of
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// bootblock.
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param.headeroffset = (
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param.baseaddress -
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sizeof(struct cbfs_header));
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if (bootblock.size >= sizeof(uint32_t)) {
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// TODO this only works for 32b top-aligned system now...
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uint32_t ptr = param.headeroffset - param.size;
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uint32_t *sig = (uint32_t *)(bootblock.data +
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bootblock.size -
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sizeof(ptr));
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*sig = ptr;
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DEBUG("CBFS header reference in end of bootblock.\n");
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}
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}
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if (cbfs_image_create(&image,
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param.arch,
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param.size,
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param.alignment,
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&bootblock,
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param.baseaddress,
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param.headeroffset,
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param.offset) != 0) {
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ERROR("Failed to create %s.\n", param.cbfs_name);
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return 1;
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}
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buffer_delete(&bootblock);
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if (cbfs_image_write_file(&image, param.cbfs_name) != 0) {
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ERROR("Failed to write %s.\n", param.cbfs_name);
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cbfs_image_delete(&image);
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return 1;
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}
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cbfs_image_delete(&image);
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return 0;
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}
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static int cbfs_locate(void)
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{
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struct cbfs_image image;
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struct buffer buffer;
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int32_t address;
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if (!param.filename) {
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ERROR("You need to specify -f/--filename.\n");
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return 1;
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}
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if (!param.name) {
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ERROR("You need to specify -n/--name.\n");
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return 1;
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}
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if (cbfs_image_from_file(&image, param.cbfs_name) != 0) {
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ERROR("Failed to load %s.\n", param.cbfs_name);
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return 1;
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}
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if (cbfs_get_entry(&image, param.name))
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WARN("'%s' already in CBFS.\n", param.name);
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if (buffer_from_file(&buffer, param.filename) != 0) {
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ERROR("Cannot load %s.\n", param.filename);
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cbfs_image_delete(&image);
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return 1;
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}
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address = cbfs_locate_entry(&image, param.name, buffer.size,
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param.pagesize, param.alignment);
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buffer_delete(&buffer);
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if (address == -1) {
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ERROR("'%s' can't fit in CBFS for page-size %#x, align %#x.\n",
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param.name, param.pagesize, param.alignment);
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cbfs_image_delete(&image);
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return 1;
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}
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if (param.top_aligned)
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address = address - image.header->romsize;
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cbfs_image_delete(&image);
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printf("0x%x\n", address);
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return 0;
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}
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static int cbfs_print(void)
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{
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struct cbfs_image image;
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if (cbfs_image_from_file(&image, param.cbfs_name) != 0) {
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ERROR("Could not load ROM image '%s'.\n",
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param.cbfs_name);
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return 1;
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}
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cbfs_print_directory(&image);
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cbfs_image_delete(&image);
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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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int result = 0;
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struct cbfs_image image;
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if (!param.filename) {
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ERROR("You need to specify -f/--filename.\n");
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return 1;
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}
|
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|
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if (!param.name) {
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ERROR("You need to specify -n/--name.\n");
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return 1;
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}
|
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|
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if (cbfs_image_from_file(&image, param.cbfs_name) != 0) {
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ERROR("Could not load ROM image '%s'.\n",
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param.cbfs_name);
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result = 1;
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} else if (cbfs_export_entry(&image, param.name,
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param.filename) != 0) {
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result = 1;
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}
|
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|
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cbfs_image_delete(&image);
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return result;
|
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}
|
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|
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static int cbfs_update_fit(void)
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{
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int ret = 0;
|
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struct cbfs_image image;
|
|
|
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if (!param.name) {
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ERROR("You need to specify -n/--name.\n");
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return 1;
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}
|
|
|
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if (param.fit_empty_entries <= 0) {
|
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ERROR("Invalid number of fit entries "
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"(-x/--empty-fits): %d\n", param.fit_empty_entries);
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return 1;
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}
|
|
|
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if (cbfs_image_from_file(&image, param.cbfs_name) != 0) {
|
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ERROR("Could not load ROM image '%s'.\n",
|
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param.cbfs_name);
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return 1;
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}
|
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|
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ret = fit_update_table(&image, param.fit_empty_entries, param.name);
|
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if (!ret)
|
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ret = cbfs_image_write_file(&image, param.cbfs_name);
|
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|
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cbfs_image_delete(&image);
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return ret;
|
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}
|
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|
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static const struct command commands[] = {
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{"add", "f:n:t:b:vh?", cbfs_add},
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{"add-payload", "f:n:t:c:b:vh?C:I:", cbfs_add_payload},
|
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{"add-stage", "f:n:t:c:b:S:vh?", cbfs_add_stage},
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{"add-flat-binary", "f:n:l:e:c:b:vh?", cbfs_add_flat_binary},
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{"add-int", "i:n:b:vh?", cbfs_add_integer},
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{"remove", "n:vh?", cbfs_remove},
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{"create", "s:B:b:H:a:o:m:vh?", cbfs_create},
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{"locate", "f:n:P:a:Tvh?", cbfs_locate},
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{"print", "vh?", cbfs_print},
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{"extract", "n:f:vh?", cbfs_extract},
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{"update-fit", "n:x:vh?", cbfs_update_fit},
|
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};
|
|
|
|
static struct option long_options[] = {
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|
{"name", required_argument, 0, 'n' },
|
|
{"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' },
|
|
{"top-aligned", required_argument, 0, 'T' },
|
|
{"entry-point", required_argument, 0, 'e' },
|
|
{"size", required_argument, 0, 's' },
|
|
{"bootblock", required_argument, 0, 'B' },
|
|
{"alignment", required_argument, 0, 'a' },
|
|
{"page-size", required_argument, 0, 'P' },
|
|
{"offset", required_argument, 0, 'o' },
|
|
{"file", required_argument, 0, 'f' },
|
|
{"int", required_argument, 0, 'i' },
|
|
{"machine", required_argument, 0, 'm' },
|
|
{"empty-fits", required_argument, 0, 'x' },
|
|
{"initrd", required_argument, 0, 'I' },
|
|
{"cmdline", required_argument, 0, 'C' },
|
|
{"ignore-sec", required_argument, 0, 'S' },
|
|
{"verbose", no_argument, 0, 'v' },
|
|
{"help", no_argument, 0, 'h' },
|
|
{NULL, 0, 0, 0 }
|
|
};
|
|
|
|
static void usage(char *name)
|
|
{
|
|
printf
|
|
("cbfstool: Management utility for CBFS formatted ROM images\n\n"
|
|
"USAGE:\n" " %s [-h]\n"
|
|
" %s FILE COMMAND [-v] [PARAMETERS]...\n\n" "OPTIONs:\n"
|
|
" -T Output top-aligned memory address\n"
|
|
" -v Provide verbose output\n"
|
|
" -h Display this help message\n\n"
|
|
"COMMANDs:\n"
|
|
" add -f FILE -n NAME -t TYPE [-b base-address] "
|
|
"Add a component\n"
|
|
" add-payload -f FILE -n NAME [-c compression] [-b base] "
|
|
"Add a payload to the ROM\n"
|
|
" (linux specific: [-C cmdline] [-I initrd])\n"
|
|
" add-stage -f FILE -n NAME [-c compression] [-b base] \\\n"
|
|
" [-S section-to-ignore] "
|
|
"Add a stage to the ROM\n"
|
|
" add-flat-binary -f FILE -n NAME -l load-address \\\n"
|
|
" -e entry-point [-c compression] [-b base] "
|
|
"Add a 32bit flat mode binary\n"
|
|
" add-int -i INTEGER -n NAME [-b base] "
|
|
"Add a raw 64-bit integer value\n"
|
|
" remove -n NAME "
|
|
"Remove a component\n"
|
|
" create -s size -B bootblock -m ARCH [-a align] [-o offset] "
|
|
"Create a ROM file\n"
|
|
" locate -f FILE -n NAME [-P page-size] [-a align] [-T] "
|
|
"Find a place for a file of that size\n"
|
|
" print "
|
|
"Show the contents of the ROM\n"
|
|
" extract -n NAME -f FILE "
|
|
"Extracts a raw payload from ROM\n"
|
|
" update-fit -n MICROCODE_BLOB_NAME -x EMTPY_FIT_ENTRIES\n "
|
|
"Updates the FIT table with microcode entries\n"
|
|
"\n"
|
|
"ARCHes:\n"
|
|
" aarch64, arm, x86\n"
|
|
"TYPEs:\n", name, name
|
|
);
|
|
print_supported_filetypes();
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
size_t i;
|
|
int c;
|
|
|
|
if (argc < 3) {
|
|
usage(argv[0]);
|
|
return 1;
|
|
}
|
|
|
|
param.cbfs_name = argv[1];
|
|
char *cmd = argv[2];
|
|
optind += 2;
|
|
|
|
for (i = 0; i < ARRAY_SIZE(commands); i++) {
|
|
if (strcmp(cmd, commands[i].name) != 0)
|
|
continue;
|
|
|
|
while (1) {
|
|
char *suffix = NULL;
|
|
int option_index = 0;
|
|
|
|
c = getopt_long(argc, argv, commands[i].optstring,
|
|
long_options, &option_index);
|
|
if (c == -1)
|
|
break;
|
|
|
|
/* filter out illegal long options */
|
|
if (strchr(commands[i].optstring, c) == NULL) {
|
|
/* TODO maybe print actual long option instead */
|
|
ERROR("%s: invalid option -- '%c'\n",
|
|
argv[0], c);
|
|
c = '?';
|
|
}
|
|
|
|
switch(c) {
|
|
case 'n':
|
|
param.name = optarg;
|
|
break;
|
|
case 't':
|
|
if (intfiletype(optarg) != ((uint64_t) - 1))
|
|
param.type = intfiletype(optarg);
|
|
else
|
|
param.type = strtoul(optarg, NULL, 0);
|
|
if (param.type == 0)
|
|
WARN("Unknown type '%s' ignored\n",
|
|
optarg);
|
|
break;
|
|
case 'c':
|
|
if (!strncasecmp(optarg, "lzma", 5))
|
|
param.algo = CBFS_COMPRESS_LZMA;
|
|
else if (!strncasecmp(optarg, "none", 5))
|
|
param.algo = CBFS_COMPRESS_NONE;
|
|
else
|
|
WARN("Unknown compression '%s'"
|
|
" ignored.\n", optarg);
|
|
break;
|
|
case 'b':
|
|
param.baseaddress = strtoul(optarg, NULL, 0);
|
|
// baseaddress may be zero on non-x86, so we
|
|
// need an explicit "baseaddress_assigned".
|
|
param.baseaddress = strtoul(optarg, NULL, 0);
|
|
param.baseaddress_assigned = 1;
|
|
break;
|
|
case 'l':
|
|
param.loadaddress = strtoul(optarg, NULL, 0);
|
|
|
|
break;
|
|
case 'e':
|
|
param.entrypoint = strtoul(optarg, NULL, 0);
|
|
break;
|
|
case 's':
|
|
param.size = strtoul(optarg, &suffix, 0);
|
|
if (tolower(suffix[0])=='k') {
|
|
param.size *= 1024;
|
|
}
|
|
if (tolower(suffix[0])=='m') {
|
|
param.size *= 1024 * 1024;
|
|
}
|
|
break;
|
|
case 'B':
|
|
param.bootblock = optarg;
|
|
break;
|
|
case 'H':
|
|
param.headeroffset = strtoul(
|
|
optarg, NULL, 0);
|
|
param.headeroffset_assigned = 1;
|
|
break;
|
|
case 'a':
|
|
param.alignment = strtoul(optarg, NULL, 0);
|
|
break;
|
|
case 'P':
|
|
param.pagesize = strtoul(optarg, NULL, 0);
|
|
break;
|
|
case 'o':
|
|
param.offset = strtoul(optarg, NULL, 0);
|
|
break;
|
|
case 'f':
|
|
param.filename = optarg;
|
|
break;
|
|
case 'i':
|
|
param.u64val = strtoull(optarg, NULL, 0);
|
|
break;
|
|
case 'T':
|
|
param.top_aligned = 1;
|
|
break;
|
|
case 'x':
|
|
param.fit_empty_entries = strtol(optarg, NULL, 0);
|
|
break;
|
|
case 'v':
|
|
verbose++;
|
|
break;
|
|
case 'm':
|
|
param.arch = string_to_arch(optarg);
|
|
break;
|
|
case 'I':
|
|
param.initrd = optarg;
|
|
break;
|
|
case 'C':
|
|
param.cmdline = optarg;
|
|
break;
|
|
case 'S':
|
|
param.ignore_section = optarg;
|
|
break;
|
|
case 'h':
|
|
case '?':
|
|
usage(argv[0]);
|
|
return 1;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return commands[i].function();
|
|
}
|
|
|
|
ERROR("Unknown command '%s'.\n", cmd);
|
|
usage(argv[0]);
|
|
return 1;
|
|
}
|