+++ /dev/null
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
- *
- * This tool was based on:
- * TP-Link WR941 V2 firmware checksum fixing tool.
- * Copyright (C) 2008,2009 Wang Jian <lark@linux.net.cn>
- */
-
-#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 <stdbool.h>
-#include <endian.h>
-#include <errno.h>
-#include <sys/stat.h>
-
-#include <arpa/inet.h>
-#include <netinet/in.h>
-
-#include "md5.h"
-#include "mktplinkfw-lib.h"
-
-#define HEADER_VERSION_V1 0x01000000
-#define HEADER_VERSION_V2 0x02000000
-
-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 region_code; /* region code */
- 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[130];
- char region_str1[32];
- char region_str2[32];
- uint8_t pad2[160];
-} __attribute__ ((packed));
-
-struct fw_region {
- char name[4];
- uint32_t code;
-};
-
-
-/*
- * Globals
- */
-char *ofname;
-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 *layout_id;
-struct flash_layout *layout;
-static char *opt_hw_id;
-static uint32_t hw_id;
-static char *opt_hw_rev;
-static uint32_t hw_rev;
-static uint32_t opt_hdr_ver = 1;
-static char *country;
-static const struct fw_region *region;
-static int fw_ver_lo;
-static int fw_ver_mid;
-static int fw_ver_hi;
-struct file_info kernel_info;
-static uint32_t kernel_la = 0;
-static uint32_t kernel_ep = 0;
-uint32_t kernel_len = 0;
-struct file_info rootfs_info;
-uint32_t rootfs_ofs = 0;
-uint32_t rootfs_align;
-static struct file_info boot_info;
-int combined;
-int strip_padding;
-int add_jffs2_eof;
-static uint32_t fw_max_len;
-static uint32_t reserved_space;
-
-static struct file_info inspect_info;
-static int extract = 0;
-static bool endian_swap = false;
-static bool rootfs_ofs_calc = false;
-
-static const char md5salt_normal[MD5SUM_LEN] = {
- 0xdc, 0xd7, 0x3a, 0xa5, 0xc3, 0x95, 0x98, 0xfb,
- 0xdd, 0xf9, 0xe7, 0xf4, 0x0e, 0xae, 0x47, 0x38,
-};
-
-static const char md5salt_boot[MD5SUM_LEN] = {
- 0x8c, 0xef, 0x33, 0x5b, 0xd5, 0xc5, 0xce, 0xfa,
- 0xa7, 0x9c, 0x28, 0xda, 0xb2, 0xe9, 0x0f, 0x42,
-};
-
-static struct flash_layout layouts[] = {
- {
- .id = "4M",
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
- }, {
- .id = "4Mlzma",
- .fw_max_len = 0x3c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x100000,
- }, {
- .id = "8M",
- .fw_max_len = 0x7c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
- }, {
- .id = "8Mlzma",
- .fw_max_len = 0x7c0000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x100000,
- }, {
- .id = "8Mmtk",
- .fw_max_len = 0x7c0000,
- .kernel_la = 0x80000000,
- .kernel_ep = 0x8000c310,
- .rootfs_ofs = 0x100000,
- }, {
- .id = "16M",
- .fw_max_len = 0xf80000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x140000,
- }, {
- .id = "16Mlzma",
- .fw_max_len = 0xf80000,
- .kernel_la = 0x80060000,
- .kernel_ep = 0x80060000,
- .rootfs_ofs = 0x100000,
- }, {
- .id = "16Mppc",
- .fw_max_len = 0xf80000,
- .kernel_la = 0x00000000 ,
- .kernel_ep = 0xc0000000,
- .rootfs_ofs = 0x2a0000,
- }, {
- /* terminating entry */
- }
-};
-
-static const struct fw_region regions[] = {
- /* Default region (universal) uses code 0 as well */
- {"US", 1},
- {"EU", 0},
- {"BR", 0},
-};
-
-static const struct fw_region * find_region(const char *country) {
- size_t i;
-
- for (i = 0; i < ARRAY_SIZE(regions); i++) {
- if (strcasecmp(regions[i].name, country) == 0)
- return ®ions[i];
- }
-
- return NULL;
-}
-
-static void usage(int status)
-{
- fprintf(stderr, "Usage: %s [OPTIONS...]\n", progname);
- fprintf(stderr,
-"\n"
-"Options:\n"
-" -c use combined kernel image\n"
-" -e swap endianness in kernel load address and entry point\n"
-" -E <ep> overwrite kernel entry point with <ep> (hexval prefixed with 0x)\n"
-" -L <la> overwrite kernel load address with <la> (hexval prefixed with 0x)\n"
-" -H <hwid> use hardware id specified with <hwid>\n"
-" -W <hwrev> use hardware revision specified with <hwrev>\n"
-" -C <country> set region code to <country>\n"
-" -F <id> use flash layout specified with <id>\n"
-" -k <file> read kernel image from the file <file>\n"
-" -r <file> read rootfs image from the file <file>\n"
-" -a <align> align the rootfs start on an <align> bytes boundary\n"
-" -R <offset> overwrite rootfs offset with <offset> (hexval prefixed with 0x)\n"
-" -O calculate rootfs offset for combined images\n"
-" -o <file> write output to the file <file>\n"
-" -s strip padding from the end of the image\n"
-" -j add jffs2 end-of-filesystem markers\n"
-" -N <vendor> set image vendor to <vendor>\n"
-" -V <version> set image version to <version>\n"
-" -v <version> set firmware version to <version>\n"
-" -m <version> set header version to <version>\n"
-" -i <file> inspect given firmware file <file>\n"
-" -x extract kernel and rootfs while inspecting (requires -i)\n"
-" -X <size> reserve <size> bytes in the firmware image (hexval prefixed with 0x)\n"
-" -h show this screen\n"
- );
-
- exit(status);
-}
-
-static int check_options(void)
-{
- int ret;
- int exceed_bytes;
-
- if (inspect_info.file_name) {
- ret = get_file_stat(&inspect_info);
- if (ret)
- return ret;
-
- return 0;
- } else if (extract) {
- ERR("no firmware for inspection specified");
- return -1;
- }
-
- if (opt_hw_id == NULL) {
- ERR("hardware id not specified");
- return -1;
- }
- hw_id = strtoul(opt_hw_id, NULL, 0);
-
- if (!combined && layout_id == NULL) {
- ERR("flash layout is not specified");
- return -1;
- }
-
- if (opt_hw_rev)
- hw_rev = strtoul(opt_hw_rev, NULL, 0);
- else
- hw_rev = 1;
-
- if (country) {
- region = find_region(country);
- if (!region) {
- ERR("unknown region code \"%s\"", country);
- return -1;
- }
- }
-
- if (combined) {
- if (!kernel_la || !kernel_ep) {
- ERR("kernel loading address and entry point must be specified for combined image");
- return -1;
- }
- } else {
- layout = find_layout(layouts, layout_id);
- if (layout == NULL) {
- ERR("unknown flash layout \"%s\"", layout_id);
- return -1;
- }
-
- if (!kernel_la)
- kernel_la = layout->kernel_la;
- if (!kernel_ep)
- kernel_ep = layout->kernel_ep;
- if (!rootfs_ofs)
- rootfs_ofs = layout->rootfs_ofs;
-
- if (reserved_space > layout->fw_max_len) {
- ERR("reserved space is not valid");
- 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 (!combined) {
- fw_max_len = layout->fw_max_len - reserved_space;
-
- if (rootfs_info.file_name == NULL) {
- ERR("no rootfs image specified");
- return -1;
- }
-
- ret = get_file_stat(&rootfs_info);
- if (ret)
- return ret;
-
- if (rootfs_align) {
- kernel_len += sizeof(struct fw_header);
- rootfs_ofs = ALIGN(kernel_len, rootfs_align);
- kernel_len -= sizeof(struct fw_header);
-
- DBG("rootfs offset aligned to 0x%u", rootfs_ofs);
-
- exceed_bytes = kernel_len + rootfs_info.file_size - (fw_max_len - sizeof(struct fw_header));
- if (exceed_bytes > 0) {
- ERR("images are too big by %i bytes", exceed_bytes);
- return -1;
- }
- } else {
- exceed_bytes = kernel_info.file_size - (rootfs_ofs - sizeof(struct fw_header));
- if (exceed_bytes > 0) {
- ERR("kernel image is too big by %i bytes", exceed_bytes);
- return -1;
- }
-
- exceed_bytes = rootfs_info.file_size - (fw_max_len - rootfs_ofs);
- if (exceed_bytes > 0) {
- ERR("rootfs image is too big by %i bytes", exceed_bytes);
- return -1;
- }
- }
- }
-
- if (ofname == NULL) {
- ERR("no output file specified");
- return -1;
- }
-
- ret = sscanf(fw_ver, "%d.%d.%d", &fw_ver_hi, &fw_ver_mid, &fw_ver_lo);
- if (ret != 3) {
- ERR("invalid firmware version '%s'", fw_ver);
- return -1;
- }
-
- if (opt_hdr_ver == 1) {
- hdr_ver = HEADER_VERSION_V1;
- } else if (opt_hdr_ver == 2) {
- hdr_ver = HEADER_VERSION_V2;
- } else {
- ERR("invalid header version '%u'", opt_hdr_ver);
- return -1;
- }
-
- return 0;
-}
-
-void fill_header(char *buf, int len)
-{
- 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));
- hdr->hw_id = htonl(hw_id);
- hdr->hw_rev = htonl(hw_rev);
-
- 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);
-
- if (!combined) {
- if (boot_info.file_size == 0)
- memcpy(hdr->md5sum1, md5salt_normal, sizeof(hdr->md5sum1));
- else
- memcpy(hdr->md5sum1, md5salt_boot, sizeof(hdr->md5sum1));
-
- hdr->fw_length = htonl(layout->fw_max_len);
- hdr->rootfs_ofs = htonl(rootfs_ofs);
- hdr->rootfs_len = htonl(rootfs_info.file_size);
- }
-
- if (combined && rootfs_ofs_calc) {
- hdr->rootfs_ofs = htonl(sizeof(struct fw_header) + kernel_len);
- }
-
- hdr->ver_hi = htons(fw_ver_hi);
- hdr->ver_mid = htons(fw_ver_mid);
- hdr->ver_lo = htons(fw_ver_lo);
-
- if (region) {
- hdr->region_code = htonl(region->code);
- snprintf(
- hdr->region_str1, sizeof(hdr->region_str1), "00000000;%02X%02X%02X%02X;",
- region->name[0], region->name[1], region->name[2], region->name[3]
- );
- snprintf(
- hdr->region_str2, sizeof(hdr->region_str2), "%02X%02X%02X%02X",
- region->name[0], region->name[1], region->name[2], region->name[3]
- );
- }
-
- if (endian_swap) {
- hdr->kernel_la = bswap_32(hdr->kernel_la);
- hdr->kernel_ep = bswap_32(hdr->kernel_ep);
- }
-
- if (!combined)
- get_md5(buf, len, hdr->md5sum1);
-}
-
-static int inspect_fw(void)
-{
- char *buf;
- struct fw_header *hdr;
- uint8_t md5sum[MD5SUM_LEN];
- int ret = EXIT_FAILURE;
-
- buf = malloc(inspect_info.file_size);
- if (!buf) {
- ERR("no memory for buffer!\n");
- goto out;
- }
-
- ret = read_to_buf(&inspect_info, buf);
- if (ret)
- goto out_free_buf;
- hdr = (struct fw_header *)buf;
-
- inspect_fw_pstr("File name", inspect_info.file_name);
- inspect_fw_phexdec("File size", inspect_info.file_size);
-
- if ((ntohl(hdr->version) != HEADER_VERSION_V1) &&
- (ntohl(hdr->version) != HEADER_VERSION_V2)) {
- ERR("file does not seem to have V1/V2 header!\n");
- goto out_free_buf;
- }
-
- inspect_fw_phexdec("Version 1 Header size", sizeof(struct fw_header));
-
- memcpy(md5sum, hdr->md5sum1, sizeof(md5sum));
- if (ntohl(hdr->boot_len) == 0)
- memcpy(hdr->md5sum1, md5salt_normal, sizeof(md5sum));
- else
- memcpy(hdr->md5sum1, md5salt_boot, sizeof(md5sum));
- get_md5(buf, inspect_info.file_size, hdr->md5sum1);
-
- if (memcmp(md5sum, hdr->md5sum1, sizeof(md5sum))) {
- inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(*ERROR*)");
- inspect_fw_pmd5sum(" --> expected", hdr->md5sum1, "");
- } else {
- inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(ok)");
- }
- if (ntohl(hdr->unk2) != 0)
- inspect_fw_phexdec("Unknown value 2", hdr->unk2);
- inspect_fw_pmd5sum("Header MD5Sum2", hdr->md5sum2,
- "(purpose yet unknown, unchecked here)");
- if (ntohl(hdr->unk3) != 0)
- inspect_fw_phexdec("Unknown value 3", hdr->unk3);
-
- printf("\n");
-
- inspect_fw_pstr("Vendor name", hdr->vendor_name);
- inspect_fw_pstr("Firmware version", hdr->fw_version);
- inspect_fw_phex("Hardware ID", ntohl(hdr->hw_id));
- inspect_fw_phex("Hardware Revision", ntohl(hdr->hw_rev));
- inspect_fw_phex("Region code", ntohl(hdr->region_code));
-
- printf("\n");
-
- inspect_fw_phexdec("Kernel data offset",
- ntohl(hdr->kernel_ofs));
- inspect_fw_phexdec("Kernel data length",
- ntohl(hdr->kernel_len));
- inspect_fw_phex("Kernel load address",
- ntohl(hdr->kernel_la));
- inspect_fw_phex("Kernel entry point",
- ntohl(hdr->kernel_ep));
- inspect_fw_phexdec("Rootfs data offset",
- ntohl(hdr->rootfs_ofs));
- inspect_fw_phexdec("Rootfs data length",
- ntohl(hdr->rootfs_len));
- inspect_fw_phexdec("Boot loader data offset",
- ntohl(hdr->boot_ofs));
- inspect_fw_phexdec("Boot loader data length",
- ntohl(hdr->boot_len));
- inspect_fw_phexdec("Total firmware length",
- ntohl(hdr->fw_length));
-
- if (extract) {
- FILE *fp;
- char *filename;
-
- printf("\n");
-
- filename = malloc(strlen(inspect_info.file_name) + 8);
- sprintf(filename, "%s-kernel", inspect_info.file_name);
- printf("Extracting kernel to \"%s\"...\n", filename);
- fp = fopen(filename, "w");
- if (fp) {
- if (!fwrite(buf + ntohl(hdr->kernel_ofs),
- ntohl(hdr->kernel_len), 1, fp)) {
- ERR("error in fwrite(): %s", strerror(errno));
- }
- fclose(fp);
- } else {
- ERR("error in fopen(): %s", strerror(errno));
- }
- free(filename);
-
- filename = malloc(strlen(inspect_info.file_name) + 8);
- sprintf(filename, "%s-rootfs", inspect_info.file_name);
- printf("Extracting rootfs to \"%s\"...\n", filename);
- fp = fopen(filename, "w");
- if (fp) {
- if (!fwrite(buf + ntohl(hdr->rootfs_ofs),
- ntohl(hdr->rootfs_len), 1, fp)) {
- ERR("error in fwrite(): %s", strerror(errno));
- }
- fclose(fp);
- } else {
- ERR("error in fopen(): %s", strerror(errno));
- }
- free(filename);
- }
-
- out_free_buf:
- free(buf);
- out:
- return ret;
-}
-
-int main(int argc, char *argv[])
-{
- int ret = EXIT_FAILURE;
-
- progname = basename(argv[0]);
-
- while ( 1 ) {
- int c;
-
- c = getopt(argc, argv, "a:H:E:F:L:m:V:N:W:C:ci:k:r:R:o:OxX:ehsjv:");
- if (c == -1)
- break;
-
- switch (c) {
- case 'a':
- sscanf(optarg, "0x%x", &rootfs_align);
- break;
- case 'H':
- opt_hw_id = optarg;
- break;
- case 'E':
- sscanf(optarg, "0x%x", &kernel_ep);
- break;
- case 'F':
- layout_id = optarg;
- break;
- case 'W':
- opt_hw_rev = optarg;
- break;
- case 'C':
- country = optarg;
- break;
- case 'L':
- sscanf(optarg, "0x%x", &kernel_la);
- break;
- case 'm':
- sscanf(optarg, "%u", &opt_hdr_ver);
- break;
- case 'V':
- version = optarg;
- break;
- case 'v':
- fw_ver = optarg;
- break;
- case 'N':
- vendor = optarg;
- break;
- case 'c':
- combined++;
- break;
- case 'k':
- kernel_info.file_name = optarg;
- break;
- case 'r':
- rootfs_info.file_name = optarg;
- break;
- case 'R':
- sscanf(optarg, "0x%x", &rootfs_ofs);
- break;
- case 'o':
- ofname = optarg;
- break;
- case 'O':
- rootfs_ofs_calc = 1;
- break;
- case 's':
- strip_padding = 1;
- break;
- case 'i':
- inspect_info.file_name = optarg;
- break;
- case 'j':
- add_jffs2_eof = 1;
- break;
- case 'x':
- extract = 1;
- break;
- case 'e':
- endian_swap = true;
- break;
- case 'h':
- usage(EXIT_SUCCESS);
- break;
- case 'X':
- sscanf(optarg, "0x%x", &reserved_space);
- break;
- default:
- usage(EXIT_FAILURE);
- break;
- }
- }
-
- ret = check_options();
- if (ret)
- goto out;
-
- if (!inspect_info.file_name)
- ret = build_fw(sizeof(struct fw_header));
- else
- ret = inspect_fw();
-
- out:
- return ret;
-}
projects / openwrt / staging / mkresin.git / blobdiff