+++ /dev/null
-/*
- * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
- * Copyright (C) 2016 Tal Keren <kooolk@gmail.com>
- *
- * Stripped down version of the regular tplink firmware that is only used
- * for compressing and booting the kernel.
- *
- * This tool was based on:
- * TP-Link WR941 V2 firmware checksum fixing tool.
- * Copyright (C) 2008,2009 Wang Jian <lark@linux.net.cn>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published
- * by the Free Software Foundation.
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
-#include <string.h>
-#include <unistd.h> /* for unlink() */
-#include <libgen.h>
-#include <getopt.h> /* for getopt() */
-#include <stdarg.h>
-#include <errno.h>
-#include <sys/stat.h>
-
-#include <arpa/inet.h>
-#include <netinet/in.h>
-
-#define ALIGN(x,a) ({ typeof(a) __a = (a); (((x) + __a - 1) & ~(__a - 1)); })
-
-#define HEADER_VERSION_V1 0x01000000
-
-#define MD5SUM_LEN 16
-
-struct file_info {
- char *file_name; /* name of the file */
- uint32_t file_size; /* length of the file */
-};
-
-struct fw_header {
- uint32_t version; /* header version */
- char vendor_name[24];
- char fw_version[36];
- uint32_t hw_id; /* hardware id */
- uint32_t hw_rev; /* hardware revision */
- uint32_t unk1;
- uint8_t md5sum1[MD5SUM_LEN];
- uint32_t unk2;
- uint8_t md5sum2[MD5SUM_LEN];
- uint32_t unk3;
- uint32_t kernel_la; /* kernel load address */
- uint32_t kernel_ep; /* kernel entry point */
- uint32_t fw_length; /* total length of the firmware */
- uint32_t kernel_ofs; /* kernel data offset */
- uint32_t kernel_len; /* kernel data length */
- uint32_t rootfs_ofs; /* rootfs data offset */
- uint32_t rootfs_len; /* rootfs data length */
- uint32_t boot_ofs; /* bootloader data offset */
- uint32_t boot_len; /* bootloader data length */
- uint16_t ver_hi;
- uint16_t ver_mid;
- uint16_t ver_lo;
- uint8_t pad[354];
-} __attribute__ ((packed));
-
-
-/*
- * Globals
- */
-static char *ofname;
-static char *progname;
-static char *vendor = "TP-LINK Technologies";
-static char *version = "ver. 1.0";
-static char *fw_ver = "0.0.0";
-static uint32_t hdr_ver = HEADER_VERSION_V1;
-
-static char *opt_hw_id;
-static uint32_t hw_id = 0;
-static struct file_info kernel_info;
-static uint32_t kernel_la = 0;
-static uint32_t kernel_ep = 0;
-static uint32_t kernel_len = 0;
-
-/*
- * Message macros
- */
-#define ERR(fmt, ...) do { \
- fflush(0); \
- fprintf(stderr, "[%s] *** error: " fmt "\n", \
- progname, ## __VA_ARGS__ ); \
-} while (0)
-
-#define ERRS(fmt, ...) do { \
- int save = errno; \
- fflush(0); \
- fprintf(stderr, "[%s] *** error: " fmt ": %s\n", \
- progname, ## __VA_ARGS__, strerror(save)); \
-} while (0)
-
-#define DBG(fmt, ...) do { \
- fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
-} while (0)
-
-static void usage(int status)
-{
- FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
- struct board_info *board;
-
- fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
- fprintf(stream,
-"\n"
-"Options:\n"
-" -E <ep> kernel entry point with <ep> (hexval prefixed with 0x)\n"
-" -L <la> kernel load address with <la> (hexval prefixed with 0x)\n"
-" -H <hwid> use hardware id specified with <hwid>\n"
-" -k <file> read kernel image from the file <file>\n"
-" -o <file> write output to the file <file>\n"
-" -N <vendor> set image vendor to <vendor>\n"
-" -V <version> set image version to <version>\n"
-" -h show this screen\n"
- );
-
- exit(status);
-}
-
-static int get_file_stat(struct file_info *fdata)
-{
- struct stat st;
- int res;
-
- if (fdata->file_name == NULL)
- return 0;
-
- res = stat(fdata->file_name, &st);
- if (res){
- ERRS("stat failed on %s", fdata->file_name);
- return res;
- }
-
- fdata->file_size = st.st_size;
- return 0;
-}
-
-static int read_to_buf(struct file_info *fdata, char *buf)
-{
- FILE *f;
- int ret = EXIT_FAILURE;
-
- f = fopen(fdata->file_name, "r");
- if (f == NULL) {
- ERRS("could not open \"%s\" for reading", fdata->file_name);
- goto out;
- }
-
- errno = 0;
- fread(buf, fdata->file_size, 1, f);
- if (errno != 0) {
- ERRS("unable to read from file \"%s\"", fdata->file_name);
- goto out_close;
- }
-
- ret = EXIT_SUCCESS;
-
- out_close:
- fclose(f);
- out:
- return ret;
-}
-
-static int check_options(void)
-{
- int ret;
-
- if (opt_hw_id) {
- hw_id = strtoul(opt_hw_id, NULL, 0);
- }
-
- if (!kernel_la || !kernel_ep) {
- ERR("kernel loading address and entry point must be specified");
- return -1;
- }
-
- if (kernel_info.file_name == NULL) {
- ERR("no kernel image specified");
- return -1;
- }
-
- ret = get_file_stat(&kernel_info);
- if (ret)
- return ret;
-
- kernel_len = kernel_info.file_size;
-
- if (ofname == NULL) {
- ERR("no output file specified");
- return -1;
- }
-
- return 0;
-}
-
-static void fill_header(char *buf)
-{
- struct fw_header *hdr = (struct fw_header *)buf;
-
- memset(hdr, 0, sizeof(struct fw_header));
-
- hdr->version = htonl(hdr_ver);
- strncpy(hdr->vendor_name, vendor, sizeof(hdr->vendor_name));
- strncpy(hdr->fw_version, version, sizeof(hdr->fw_version));
-
- /**
- * This field is ignored and not specified in stock firmware
- * It is specified here to ensure sysupgrade hardware compatibility
- * The hardware id of a device is in the product-info partition
- */
- hdr->hw_id = htonl(hw_id);
-
- hdr->kernel_la = htonl(kernel_la);
- hdr->kernel_ep = htonl(kernel_ep);
-
- hdr->kernel_ofs = htonl(sizeof(struct fw_header));
- hdr->kernel_len = htonl(kernel_len);
-}
-
-static int write_fw(char *data, int len)
-{
- FILE *f;
- int ret = EXIT_FAILURE;
-
- f = fopen(ofname, "w");
- if (f == NULL) {
- ERRS("could not open \"%s\" for writing", ofname);
- goto out;
- }
-
- errno = 0;
- fwrite(data, len, 1, f);
- if (errno) {
- ERRS("unable to write output file");
- goto out_flush;
- }
-
- DBG("firmware file \"%s\" completed", ofname);
-
- ret = EXIT_SUCCESS;
-
- out_flush:
- fflush(f);
- fclose(f);
- if (ret != EXIT_SUCCESS) {
- unlink(ofname);
- }
- out:
- return ret;
-}
-
-static int build_fw(void)
-{
- int buflen;
- char *buf;
- char *p;
- int ret = EXIT_FAILURE;
-
- buflen = sizeof(struct fw_header) + kernel_len;
- buflen = ALIGN(buflen, 0x4);
-
- buf = malloc(buflen);
- if (!buf) {
- ERR("no memory for buffer\n");
- goto out;
- }
-
- memset(buf, 0, buflen);
- p = buf + sizeof(struct fw_header);
- ret = read_to_buf(&kernel_info, p);
- if (ret)
- goto out_free_buf;
-
- fill_header(buf);
- ret = write_fw(buf, buflen);
- if (ret)
- goto out_free_buf;
-
- ret = EXIT_SUCCESS;
-
- out_free_buf:
- free(buf);
- out:
- return ret;
-}
-
-int main(int argc, char *argv[])
-{
- int ret = EXIT_FAILURE;
- int err;
-
- FILE *outfile;
-
- progname = basename(argv[0]);
-
- while ( 1 ) {
- int c;
-
- c = getopt(argc, argv, "H:E:L:V:N:k:o:h");
- if (c == -1)
- break;
-
- switch (c) {
- case 'H':
- opt_hw_id = optarg;
- break;
- case 'E':
- sscanf(optarg, "0x%x", &kernel_ep);
- break;
- case 'L':
- sscanf(optarg, "0x%x", &kernel_la);
- break;
- case 'V':
- version = optarg;
- break;
- case 'N':
- vendor = optarg;
- break;
- case 'k':
- kernel_info.file_name = optarg;
- break;
- case 'o':
- ofname = optarg;
- break;
- case 'h':
- usage(EXIT_SUCCESS);
- break;
- default:
- usage(EXIT_FAILURE);
- break;
- }
- }
-
- ret = check_options();
- if (ret)
- goto out;
-
- ret = build_fw();
-
- out:
- return ret;
-}
-
projects / openwrt / staging / hauke.git / commitdiff