version 1.1, 2014/01/14 22:25:57
|
version 1.1.2.1, 2014/01/14 22:25:57
|
Line 0
|
Line 1
|
|
/* |
|
* 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> |
|
* |
|
* 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 <openssl/md5.h> |
|
|
|
#define HOST_TO_BE32(x) htonl(x) |
|
#define BE32_TO_HOST(x) ntohl(x) |
|
|
|
/* |
|
* This is linux specific; it completely fails to get the endianness |
|
* correct when building on FreeBSD. |
|
*/ |
|
#if 0 |
|
#if (__BYTE_ORDER == __BIG_ENDIAN) |
|
# define HOST_TO_BE32(x) (x) |
|
# define BE32_TO_HOST(x) (x) |
|
#else |
|
# define HOST_TO_BE32(x) bswap_32(x) |
|
# define BE32_TO_HOST(x) bswap_32(x) |
|
#endif |
|
#endif |
|
|
|
#define HEADER_VERSION_V1 0x01000000 |
|
#define HWID_TL_MR3220_V1 0x32200001 |
|
#define HWID_TL_MR3420_V1 0x34200001 |
|
#define HWID_TL_WA901ND_V1 0x09010001 |
|
#define HWID_TL_WA901ND_V2 0x09010002 |
|
#define HWID_TL_WR703N_V1 0x07030101 |
|
#define HWID_TL_WR741ND_V1 0x07410001 |
|
#define HWID_TL_WR740N_V1 0x07400001 |
|
#define HWID_TL_WR740N_V3 0x07400300 |
|
#define HWID_TL_WR743ND_V1 0x07430001 |
|
#define HWID_TL_WR841N_V1_5 0x08410002 |
|
#define HWID_TL_WR841ND_V3 0x08410003 |
|
#define HWID_TL_WR841ND_V5 0x08410005 |
|
#define HWID_TL_WR841ND_V7 0x08410007 |
|
#define HWID_TL_WR941ND_V2 0x09410002 |
|
#define HWID_TL_WR941ND_V4 0x09410004 |
|
#define HWID_TL_WR1043ND_V1 0x10430001 |
|
|
|
#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 */ |
|
uint8_t pad[360]; |
|
} __attribute__ ((packed)); |
|
|
|
struct board_info { |
|
char *id; |
|
uint32_t hw_id; |
|
uint32_t hw_rev; |
|
uint32_t fw_max_len; |
|
uint32_t kernel_la; |
|
uint32_t kernel_ep; |
|
uint32_t rootfs_ofs; |
|
}; |
|
|
|
/* |
|
* Globals |
|
*/ |
|
static char *ofname; |
|
static char *progname; |
|
static char *vendor = "TP-LINK Technologies"; |
|
static char *version = "ver. 1.0"; |
|
|
|
static char *board_id; |
|
static struct board_info *board; |
|
static struct file_info kernel_info; |
|
static uint32_t kernel_la = 0; |
|
static uint32_t kernel_ep = 0; |
|
static struct file_info rootfs_info; |
|
static uint32_t rootfs_ofs = 0; |
|
static struct file_info boot_info; |
|
static int combined; |
|
static int strip_padding; |
|
|
|
static struct file_info inspect_info; |
|
static int extract = 0; |
|
|
|
char md5salt_normal[MD5SUM_LEN] = { |
|
0xdc, 0xd7, 0x3a, 0xa5, 0xc3, 0x95, 0x98, 0xfb, |
|
0xdd, 0xf9, 0xe7, 0xf4, 0x0e, 0xae, 0x47, 0x38, |
|
}; |
|
|
|
char md5salt_boot[MD5SUM_LEN] = { |
|
0x8c, 0xef, 0x33, 0x5b, 0xd5, 0xc5, 0xce, 0xfa, |
|
0xa7, 0x9c, 0x28, 0xda, 0xb2, 0xe9, 0x0f, 0x42, |
|
}; |
|
|
|
static struct board_info boards[] = { |
|
{ |
|
.id = "TL-MR3220v1", |
|
.hw_id = HWID_TL_MR3220_V1, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-MR3420v1", |
|
.hw_id = HWID_TL_MR3420_V1, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WA901NDv1", |
|
.hw_id = HWID_TL_WA901ND_V1, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WA901NDv2", |
|
.hw_id = HWID_TL_WA901ND_V2, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WR741NDv1", |
|
.hw_id = HWID_TL_WR741ND_V1, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WR740Nv1", |
|
.hw_id = HWID_TL_WR740N_V1, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WR740Nv3", |
|
.hw_id = HWID_TL_WR740N_V3, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WR743NDv1", |
|
.hw_id = HWID_TL_WR743ND_V1, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WR841Nv1.5", |
|
.hw_id = HWID_TL_WR841N_V1_5, |
|
.hw_rev = 2, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WR841NDv3", |
|
.hw_id = HWID_TL_WR841ND_V3, |
|
.hw_rev = 3, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WR841NDv5", |
|
.hw_id = HWID_TL_WR841ND_V5, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WR841NDv7", |
|
.hw_id = HWID_TL_WR841ND_V7, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WR941NDv2", |
|
.hw_id = HWID_TL_WR941ND_V2, |
|
.hw_rev = 2, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WR941NDv4", |
|
.hw_id = HWID_TL_WR941ND_V4, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WR1043NDv1", |
|
.hw_id = HWID_TL_WR1043ND_V1, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x7c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x140000, |
|
}, { |
|
.id = "TL-WR703Nv1", |
|
.hw_id = HWID_TL_WR703N_V1, |
|
.hw_rev = 1, |
|
.fw_max_len = 0x3c0000, |
|
.kernel_la = 0x80060000, |
|
.kernel_ep = 0x80060000, |
|
.rootfs_ofs = 0x100000, |
|
}, { |
|
/* terminating entry */ |
|
} |
|
}; |
|
|
|
/* |
|
* 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 struct board_info *find_board(char *id) |
|
{ |
|
struct board_info *ret; |
|
struct board_info *board; |
|
|
|
ret = NULL; |
|
for (board = boards; board->id != NULL; board++){ |
|
if (strcasecmp(id, board->id) == 0) { |
|
ret = board; |
|
break; |
|
} |
|
}; |
|
|
|
return ret; |
|
} |
|
|
|
static struct board_info *find_board_by_hwid(uint32_t hw_id) |
|
{ |
|
struct board_info *board; |
|
|
|
for (board = boards; board->id != NULL; board++) { |
|
if (hw_id == board->hw_id) |
|
return board; |
|
}; |
|
|
|
return NULL; |
|
} |
|
|
|
|
|
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" |
|
" -B <board> create image for the board specified with <board>\n" |
|
" -c use combined kernel image\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" |
|
" -k <file> read kernel image from the file <file>\n" |
|
" -r <file> read rootfs image from the file <file>\n" |
|
" -R <offset> overwrite rootfs offset with <offset> (hexval prefixed with 0x)\n" |
|
" -o <file> write output to the file <file>\n" |
|
" -s strip padding from the end of the image\n" |
|
" -N <vendor> set image vendor to <vendor>\n" |
|
" -V <version> set image version to <version>\n" |
|
" -i <file> inspect given firmware file <file>\n" |
|
" -x extract kernel and rootfs while inspecting (requires -i)\n" |
|
" -h show this screen\n" |
|
); |
|
|
|
exit(status); |
|
} |
|
|
|
static int get_md5(char *data, int size, char *md5) |
|
{ |
|
MD5_CTX ctx; |
|
|
|
MD5_Init(&ctx); |
|
MD5_Update(&ctx, data, size); |
|
MD5_Final((u_char*) md5, &ctx); |
|
|
|
return 0; |
|
} |
|
|
|
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 (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 (board_id == NULL) { |
|
ERR("no board specified"); |
|
return -1; |
|
} |
|
|
|
board = find_board(board_id); |
|
if (board == NULL) { |
|
ERR("unknown/unsupported board id \"%s\"", board_id); |
|
return -1; |
|
} |
|
if (!kernel_la) |
|
kernel_la = board->kernel_la; |
|
if (!kernel_ep) |
|
kernel_ep = board->kernel_ep; |
|
if (!rootfs_ofs) |
|
rootfs_ofs = board->rootfs_ofs; |
|
|
|
if (kernel_info.file_name == NULL) { |
|
ERR("no kernel image specified"); |
|
return -1; |
|
} |
|
|
|
ret = get_file_stat(&kernel_info); |
|
if (ret) |
|
return ret; |
|
|
|
if (combined) { |
|
if (kernel_info.file_size > |
|
board->fw_max_len - sizeof(struct fw_header)) { |
|
ERR("kernel image is too big"); |
|
return -1; |
|
} |
|
} else { |
|
if (kernel_info.file_size > |
|
rootfs_ofs - sizeof(struct fw_header)) { |
|
ERR("kernel image is too big"); |
|
return -1; |
|
} |
|
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_info.file_size > |
|
(board->fw_max_len - rootfs_ofs)) { |
|
ERR("rootfs image is too big"); |
|
return -1; |
|
} |
|
} |
|
|
|
if (ofname == NULL) { |
|
ERR("no output file specified"); |
|
return -1; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static void fill_header(char *buf, int len) |
|
{ |
|
struct fw_header *hdr = (struct fw_header *)buf; |
|
|
|
memset(hdr, 0, sizeof(struct fw_header)); |
|
|
|
hdr->version = HOST_TO_BE32(HEADER_VERSION_V1); |
|
strncpy(hdr->vendor_name, vendor, sizeof(hdr->vendor_name)); |
|
strncpy(hdr->fw_version, version, sizeof(hdr->fw_version)); |
|
hdr->hw_id = HOST_TO_BE32(board->hw_id); |
|
hdr->hw_rev = HOST_TO_BE32(board->hw_rev); |
|
|
|
if (boot_info.file_size == 0) |
|
memcpy(hdr->md5sum1, md5salt_normal, sizeof(hdr->md5sum1)); |
|
else |
|
memcpy(hdr->md5sum1, md5salt_boot, sizeof(hdr->md5sum1)); |
|
|
|
hdr->kernel_la = HOST_TO_BE32(kernel_la); |
|
hdr->kernel_ep = HOST_TO_BE32(kernel_ep); |
|
hdr->fw_length = HOST_TO_BE32(board->fw_max_len); |
|
hdr->kernel_ofs = HOST_TO_BE32(sizeof(struct fw_header)); |
|
hdr->kernel_len = HOST_TO_BE32(kernel_info.file_size); |
|
if (!combined) { |
|
hdr->rootfs_ofs = HOST_TO_BE32(rootfs_ofs); |
|
hdr->rootfs_len = HOST_TO_BE32(rootfs_info.file_size); |
|
} |
|
|
|
get_md5(buf, len, (char*) hdr->md5sum1); |
|
} |
|
|
|
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; |
|
int writelen = 0; |
|
|
|
buflen = board->fw_max_len; |
|
|
|
buf = malloc(buflen); |
|
if (!buf) { |
|
ERR("no memory for buffer\n"); |
|
goto out; |
|
} |
|
|
|
memset(buf, 0xff, buflen); |
|
p = buf + sizeof(struct fw_header); |
|
ret = read_to_buf(&kernel_info, p); |
|
if (ret) |
|
goto out_free_buf; |
|
|
|
writelen = kernel_info.file_size; |
|
|
|
if (!combined) { |
|
p = buf + rootfs_ofs; |
|
ret = read_to_buf(&rootfs_info, p); |
|
if (ret) |
|
goto out_free_buf; |
|
|
|
writelen = rootfs_ofs + rootfs_info.file_size; |
|
} |
|
|
|
if (!strip_padding) |
|
writelen = buflen; |
|
|
|
fill_header(buf, writelen); |
|
ret = write_fw(buf, writelen); |
|
if (ret) |
|
goto out_free_buf; |
|
|
|
ret = EXIT_SUCCESS; |
|
|
|
out_free_buf: |
|
free(buf); |
|
out: |
|
return ret; |
|
} |
|
|
|
/* Helper functions to inspect_fw() representing different output formats */ |
|
static inline void inspect_fw_pstr(char *label, char *str) |
|
{ |
|
printf("%-23s: %s\n", label, str); |
|
} |
|
|
|
static inline void inspect_fw_phex(char *label, uint32_t val) |
|
{ |
|
printf("%-23s: 0x%08x\n", label, val); |
|
} |
|
|
|
static inline void inspect_fw_phexpost(char *label, |
|
uint32_t val, char *post) |
|
{ |
|
printf("%-23s: 0x%08x (%s)\n", label, val, post); |
|
} |
|
|
|
static inline void inspect_fw_phexdef(char *label, |
|
uint32_t val, uint32_t defval) |
|
{ |
|
printf("%-23s: 0x%08x ", label, val); |
|
|
|
if (val == defval) |
|
printf("(== OpenWrt default)\n"); |
|
else |
|
printf("(OpenWrt default: 0x%08x)\n", defval); |
|
} |
|
|
|
static inline void inspect_fw_phexexp(char *label, |
|
uint32_t val, uint32_t expval) |
|
{ |
|
printf("%-23s: 0x%08x ", label, val); |
|
|
|
if (val == expval) |
|
printf("(ok)\n"); |
|
else |
|
printf("(expected: 0x%08x)\n", expval); |
|
} |
|
|
|
static inline void inspect_fw_phexdec(char *label, uint32_t val) |
|
{ |
|
printf("%-23s: 0x%08x / %8u bytes\n", label, val, val); |
|
} |
|
|
|
static inline void inspect_fw_phexdecdef(char *label, |
|
uint32_t val, uint32_t defval) |
|
{ |
|
printf("%-23s: 0x%08x / %8u bytes ", label, val, val); |
|
|
|
if (val == defval) |
|
printf("(== OpenWrt default)\n"); |
|
else |
|
printf("(OpenWrt default: 0x%08x)\n", defval); |
|
} |
|
|
|
static inline void inspect_fw_pmd5sum(char *label, uint8_t *val, char *text) |
|
{ |
|
int i; |
|
|
|
printf("%-23s:", label); |
|
for (i=0; i<MD5SUM_LEN; i++) |
|
printf(" %02x", val[i]); |
|
printf(" %s\n", text); |
|
} |
|
|
|
static int inspect_fw(void) |
|
{ |
|
char *buf; |
|
struct fw_header *hdr; |
|
uint8_t md5sum[MD5SUM_LEN]; |
|
struct board_info *board; |
|
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 (BE32_TO_HOST(hdr->version) != HEADER_VERSION_V1) { |
|
ERR("file does not seem to have V1 header!\n"); |
|
goto out_free_buf; |
|
} |
|
|
|
inspect_fw_phexdec("Version 1 Header size", sizeof(struct fw_header)); |
|
|
|
if (BE32_TO_HOST(hdr->unk1) != 0) |
|
inspect_fw_phexdec("Unknown value 1", hdr->unk1); |
|
|
|
memcpy(md5sum, hdr->md5sum1, sizeof(md5sum)); |
|
if (BE32_TO_HOST(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, (char*) 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 (BE32_TO_HOST(hdr->unk2) != 0) |
|
inspect_fw_phexdec("Unknown value 2", hdr->unk2); |
|
inspect_fw_pmd5sum("Header MD5Sum2", hdr->md5sum2, |
|
"(purpose yet unknown, unchecked here)"); |
|
if (BE32_TO_HOST(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); |
|
board = find_board_by_hwid(BE32_TO_HOST(hdr->hw_id)); |
|
if (board) { |
|
inspect_fw_phexpost("Hardware ID", |
|
BE32_TO_HOST(hdr->hw_id), board->id); |
|
inspect_fw_phexexp("Hardware Revision", |
|
BE32_TO_HOST(hdr->hw_rev), board->hw_rev); |
|
} else { |
|
inspect_fw_phexpost("Hardware ID", |
|
BE32_TO_HOST(hdr->hw_id), "unknown"); |
|
inspect_fw_phex("Hardware Revision", |
|
BE32_TO_HOST(hdr->hw_rev)); |
|
} |
|
|
|
printf("\n"); |
|
|
|
inspect_fw_phexdec("Kernel data offset", |
|
BE32_TO_HOST(hdr->kernel_ofs)); |
|
inspect_fw_phexdec("Kernel data length", |
|
BE32_TO_HOST(hdr->kernel_len)); |
|
if (board) { |
|
inspect_fw_phexdef("Kernel load address", |
|
BE32_TO_HOST(hdr->kernel_la), |
|
board->kernel_la); |
|
inspect_fw_phexdef("Kernel entry point", |
|
BE32_TO_HOST(hdr->kernel_ep), |
|
board->kernel_ep); |
|
inspect_fw_phexdecdef("Rootfs data offset", |
|
BE32_TO_HOST(hdr->rootfs_ofs), |
|
board->rootfs_ofs); |
|
} else { |
|
inspect_fw_phex("Kernel load address", |
|
BE32_TO_HOST(hdr->kernel_la)); |
|
inspect_fw_phex("Kernel entry point", |
|
BE32_TO_HOST(hdr->kernel_ep)); |
|
inspect_fw_phexdec("Rootfs data offset", |
|
BE32_TO_HOST(hdr->rootfs_ofs)); |
|
} |
|
inspect_fw_phexdec("Rootfs data length", |
|
BE32_TO_HOST(hdr->rootfs_len)); |
|
inspect_fw_phexdec("Boot loader data offset", |
|
BE32_TO_HOST(hdr->boot_ofs)); |
|
inspect_fw_phexdec("Boot loader data length", |
|
BE32_TO_HOST(hdr->boot_len)); |
|
inspect_fw_phexdec("Total firmware length", |
|
BE32_TO_HOST(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 + BE32_TO_HOST(hdr->kernel_ofs), |
|
BE32_TO_HOST(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 + BE32_TO_HOST(hdr->rootfs_ofs), |
|
BE32_TO_HOST(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; |
|
int err; |
|
|
|
FILE *outfile; |
|
|
|
progname = basename(argv[0]); |
|
|
|
while ( 1 ) { |
|
int c; |
|
|
|
c = getopt(argc, argv, "B:E:L:V:N:ci:k:r:R:o:xhs"); |
|
if (c == -1) |
|
break; |
|
|
|
switch (c) { |
|
case 'B': |
|
board_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 '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 's': |
|
strip_padding = 1; |
|
break; |
|
case 'i': |
|
inspect_info.file_name = optarg; |
|
break; |
|
case 'x': |
|
extract = 1; |
|
break; |
|
case 'h': |
|
usage(EXIT_SUCCESS); |
|
break; |
|
default: |
|
usage(EXIT_FAILURE); |
|
break; |
|
} |
|
} |
|
|
|
ret = check_options(); |
|
if (ret) |
|
goto out; |
|
|
|
if (!inspect_info.file_name) |
|
ret = build_fw(); |
|
else |
|
ret = inspect_fw(); |
|
|
|
out: |
|
return ret; |
|
} |
|
|