2 * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
4 * This tool was based on:
5 * TP-Link WR941 V2 firmware checksum fixing tool.
6 * Copyright (C) 2008,2009 Wang Jian <lark@linux.net.cn>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License version 2 as published
10 * by the Free Software Foundation.
18 #include <unistd.h> /* for unlink() */
20 #include <getopt.h> /* for getopt() */
25 #include <arpa/inet.h>
26 #include <netinet/in.h>
30 #define ALIGN(x,a) ({ typeof(a) __a = (a); (((x) + __a - 1) & ~(__a - 1)); })
32 #define HEADER_VERSION_V1 0x01000000
33 #define HEADER_VERSION_V2 0x02000000
34 #define HWID_ANTMINER_S1 0x04440101
35 #define HWID_ANTMINER_S3 0x04440301
36 #define HWID_GL_INET_V1 0x08000001
37 #define HWID_GS_OOLITE_V1 0x3C000101
38 #define HWID_OMY_X1 0x06660201
39 #define HWID_ONION_OMEGA 0x04700001
40 #define HWID_TL_MR10U_V1 0x00100101
41 #define HWID_TL_MR13U_V1 0x00130101
42 #define HWID_TL_MR3020_V1 0x30200001
43 #define HWID_TL_MR3220_V1 0x32200001
44 #define HWID_TL_MR3220_V2 0x32200002
45 #define HWID_TL_MR3420_V1 0x34200001
46 #define HWID_TL_MR3420_V2 0x34200002
47 #define HWID_TL_WA701N_V1 0x07010001
48 #define HWID_TL_WA701N_V2 0x07010002
49 #define HWID_TL_WA7210N_V2 0x72100002
50 #define HWID_TL_WA7510N_V1 0x75100001
51 #define HWID_TL_WA801ND_V1 0x08010001
52 #define HWID_TL_WA830RE_V1 0x08300010
53 #define HWID_TL_WA830RE_V2 0x08300002
54 #define HWID_TL_WA801ND_V2 0x08010002
55 #define HWID_TL_WA801ND_V3 0x08010003
56 #define HWID_TL_WA901ND_V1 0x09010001
57 #define HWID_TL_WA901ND_V2 0x09010002
58 #define HWID_TL_WA901ND_V4 0x09010004
59 #define HWID_TL_WDR4300_V1_IL 0x43008001
60 #define HWID_TL_WDR4900_V1 0x49000001
61 #define HWID_TL_WR703N_V1 0x07030101
62 #define HWID_TL_WR720N_V3 0x07200103
63 #define HWID_TL_WR720N_V4 0x07200104
64 #define HWID_TL_WR741ND_V1 0x07410001
65 #define HWID_TL_WR741ND_V4 0x07410004
66 #define HWID_TL_WR740N_V1 0x07400001
67 #define HWID_TL_WR740N_V3 0x07400003
68 #define HWID_TL_WR743ND_V1 0x07430001
69 #define HWID_TL_WR743ND_V2 0x07430002
70 #define HWID_TL_WR841N_V1_5 0x08410002
71 #define HWID_TL_WR841ND_V3 0x08410003
72 #define HWID_TL_WR841ND_V5 0x08410005
73 #define HWID_TL_WR841ND_V7 0x08410007
74 #define HWID_TL_WR941ND_V2 0x09410002
75 #define HWID_TL_WR941ND_V4 0x09410004
76 #define HWID_TL_WR1043ND_V1 0x10430001
77 #define HWID_TL_WR1043ND_V2 0x10430002
78 #define HWID_TL_WR1041N_V2 0x10410002
79 #define HWID_TL_WR2543N_V1 0x25430001
84 char *file_name
; /* name of the file */
85 uint32_t file_size
; /* length of the file */
89 uint32_t version
; /* header version */
92 uint32_t hw_id
; /* hardware id */
93 uint32_t hw_rev
; /* hardware revision */
95 uint8_t md5sum1
[MD5SUM_LEN
];
97 uint8_t md5sum2
[MD5SUM_LEN
];
99 uint32_t kernel_la
; /* kernel load address */
100 uint32_t kernel_ep
; /* kernel entry point */
101 uint32_t fw_length
; /* total length of the firmware */
102 uint32_t kernel_ofs
; /* kernel data offset */
103 uint32_t kernel_len
; /* kernel data length */
104 uint32_t rootfs_ofs
; /* rootfs data offset */
105 uint32_t rootfs_len
; /* rootfs data length */
106 uint32_t boot_ofs
; /* bootloader data offset */
107 uint32_t boot_len
; /* bootloader data length */
112 } __attribute__ ((packed
));
114 struct flash_layout
{
133 static char *progname
;
134 static char *vendor
= "TP-LINK Technologies";
135 static char *version
= "ver. 1.0";
136 static char *fw_ver
= "0.0.0";
137 static uint32_t hdr_ver
= HEADER_VERSION_V1
;
139 static char *board_id
;
140 static struct board_info
*board
;
141 static char *layout_id
;
142 static struct flash_layout
*layout
;
143 static char *opt_hw_id
;
144 static uint32_t hw_id
;
145 static char *opt_hw_rev
;
146 static uint32_t hw_rev
;
147 static uint32_t opt_hdr_ver
= 1;
148 static int fw_ver_lo
;
149 static int fw_ver_mid
;
150 static int fw_ver_hi
;
151 static struct file_info kernel_info
;
152 static uint32_t kernel_la
= 0;
153 static uint32_t kernel_ep
= 0;
154 static uint32_t kernel_len
= 0;
155 static struct file_info rootfs_info
;
156 static uint32_t rootfs_ofs
= 0;
157 static uint32_t rootfs_align
;
158 static struct file_info boot_info
;
160 static int strip_padding
;
161 static int ignore_size
;
162 static int add_jffs2_eof
;
163 static unsigned char jffs2_eof_mark
[4] = {0xde, 0xad, 0xc0, 0xde};
164 static uint32_t fw_max_len
;
165 static uint32_t reserved_space
;
167 static struct file_info inspect_info
;
168 static int extract
= 0;
170 char md5salt_normal
[MD5SUM_LEN
] = {
171 0xdc, 0xd7, 0x3a, 0xa5, 0xc3, 0x95, 0x98, 0xfb,
172 0xdd, 0xf9, 0xe7, 0xf4, 0x0e, 0xae, 0x47, 0x38,
175 char md5salt_boot
[MD5SUM_LEN
] = {
176 0x8c, 0xef, 0x33, 0x5b, 0xd5, 0xc5, 0xce, 0xfa,
177 0xa7, 0x9c, 0x28, 0xda, 0xb2, 0xe9, 0x0f, 0x42,
180 static struct flash_layout layouts
[] = {
183 .fw_max_len
= 0x3c0000,
184 .kernel_la
= 0x80060000,
185 .kernel_ep
= 0x80060000,
186 .rootfs_ofs
= 0x140000,
189 .fw_max_len
= 0x3c0000,
190 .kernel_la
= 0x80060000,
191 .kernel_ep
= 0x80060000,
192 .rootfs_ofs
= 0x100000,
195 .fw_max_len
= 0x7c0000,
196 .kernel_la
= 0x80060000,
197 .kernel_ep
= 0x80060000,
198 .rootfs_ofs
= 0x140000,
201 .fw_max_len
= 0x7c0000,
202 .kernel_la
= 0x80060000,
203 .kernel_ep
= 0x80060000,
204 .rootfs_ofs
= 0x100000,
207 .fw_max_len
= 0xf80000,
208 .kernel_la
= 0x80060000,
209 .kernel_ep
= 0x80060000,
210 .rootfs_ofs
= 0x140000,
213 .fw_max_len
= 0xf80000,
214 .kernel_la
= 0x80060000,
215 .kernel_ep
= 0x80060000,
216 .rootfs_ofs
= 0x100000,
219 .fw_max_len
= 0xf80000,
220 .kernel_la
= 0x00000000,
221 .kernel_ep
= 0xc0000000,
222 .rootfs_ofs
= 0x2a0000,
224 /* terminating entry */
228 static struct board_info boards
[] = {
231 .hw_id
= HWID_TL_MR10U_V1
,
233 .layout_id
= "4Mlzma",
236 .hw_id
= HWID_TL_MR13U_V1
,
238 .layout_id
= "4Mlzma",
241 .hw_id
= HWID_TL_MR3020_V1
,
243 .layout_id
= "4Mlzma",
246 .hw_id
= HWID_TL_MR3220_V1
,
251 .hw_id
= HWID_TL_MR3220_V2
,
253 .layout_id
= "4Mlzma",
256 .hw_id
= HWID_TL_MR3420_V1
,
261 .hw_id
= HWID_TL_MR3420_V2
,
263 .layout_id
= "4Mlzma",
266 .hw_id
= HWID_TL_WA701N_V1
,
271 .hw_id
= HWID_TL_WA701N_V2
,
273 .layout_id
= "4Mlzma",
276 .hw_id
= HWID_TL_WA7210N_V2
,
278 .layout_id
= "4Mlzma",
281 .hw_id
= HWID_TL_WA7510N_V1
,
285 .id
= "TL-WA801NDv1",
286 .hw_id
= HWID_TL_WA801ND_V1
,
290 .id
= "TL-WA830REv1",
291 .hw_id
= HWID_TL_WA830RE_V1
,
295 .id
= "TL-WA830REv2",
296 .hw_id
= HWID_TL_WA830RE_V2
,
300 .id
= "TL-WA801NDv2",
301 .hw_id
= HWID_TL_WA801ND_V2
,
303 .layout_id
= "4Mlzma",
305 .id
= "TL-WA801NDv3",
306 .hw_id
= HWID_TL_WA801ND_V3
,
308 .layout_id
= "4Mlzma",
310 .id
= "TL-WA901NDv1",
311 .hw_id
= HWID_TL_WA901ND_V1
,
315 .id
= "TL-WA901NDv2",
316 .hw_id
= HWID_TL_WA901ND_V2
,
320 .id
= "TL-WA901NDv4",
321 .hw_id
= HWID_TL_WA901ND_V4
,
323 .layout_id
= "4Mlzma",
325 .id
= "TL-WDR4300v1",
326 .hw_id
= HWID_TL_WDR4300_V1_IL
,
328 .layout_id
= "8Mlzma",
330 .id
= "TL-WDR4900v1",
331 .hw_id
= HWID_TL_WDR4900_V1
,
333 .layout_id
= "16Mppc",
335 .id
= "TL-WR741NDv1",
336 .hw_id
= HWID_TL_WR741ND_V1
,
340 .id
= "TL-WR741NDv4",
341 .hw_id
= HWID_TL_WR741ND_V4
,
343 .layout_id
= "4Mlzma",
346 .hw_id
= HWID_TL_WR740N_V1
,
351 .hw_id
= HWID_TL_WR740N_V3
,
355 .id
= "TL-WR743NDv1",
356 .hw_id
= HWID_TL_WR743ND_V1
,
360 .id
= "TL-WR743NDv2",
361 .hw_id
= HWID_TL_WR743ND_V2
,
363 .layout_id
= "4Mlzma",
365 .id
= "TL-WR841Nv1.5",
366 .hw_id
= HWID_TL_WR841N_V1_5
,
370 .id
= "TL-WR841NDv3",
371 .hw_id
= HWID_TL_WR841ND_V3
,
375 .id
= "TL-WR841NDv5",
376 .hw_id
= HWID_TL_WR841ND_V5
,
380 .id
= "TL-WR841NDv7",
381 .hw_id
= HWID_TL_WR841ND_V7
,
385 .id
= "TL-WR941NDv2",
386 .hw_id
= HWID_TL_WR941ND_V2
,
390 .id
= "TL-WR941NDv4",
391 .hw_id
= HWID_TL_WR941ND_V4
,
395 .id
= "TL-WR1041Nv2",
396 .hw_id
= HWID_TL_WR1041N_V2
,
398 .layout_id
= "4Mlzma",
400 .id
= "TL-WR1043NDv1",
401 .hw_id
= HWID_TL_WR1043ND_V1
,
405 .id
= "TL-WR1043NDv2",
406 .hw_id
= HWID_TL_WR1043ND_V2
,
408 .layout_id
= "8Mlzma",
410 .id
= "TL-WR2543Nv1",
411 .hw_id
= HWID_TL_WR2543N_V1
,
413 .layout_id
= "8Mlzma",
416 .hw_id
= HWID_TL_WR703N_V1
,
418 .layout_id
= "4Mlzma",
421 .hw_id
= HWID_TL_WR720N_V3
,
423 .layout_id
= "4Mlzma",
426 .hw_id
= HWID_TL_WR720N_V4
,
428 .layout_id
= "4Mlzma",
431 .hw_id
= HWID_GL_INET_V1
,
433 .layout_id
= "8Mlzma",
436 .hw_id
= HWID_GS_OOLITE_V1
,
438 .layout_id
= "16Mlzma",
441 .hw_id
= HWID_OMY_X1
,
443 .layout_id
= "8Mlzma",
446 .hw_id
= HWID_ONION_OMEGA
,
448 .layout_id
= "16Mlzma",
451 .hw_id
= HWID_ANTMINER_S1
,
453 .layout_id
= "8Mlzma",
456 .hw_id
= HWID_ANTMINER_S3
,
458 .layout_id
= "8Mlzma",
460 /* terminating entry */
467 #define ERR(fmt, ...) do { \
469 fprintf(stderr, "[%s] *** error: " fmt "\n", \
470 progname, ## __VA_ARGS__ ); \
473 #define ERRS(fmt, ...) do { \
476 fprintf(stderr, "[%s] *** error: " fmt ": %s\n", \
477 progname, ## __VA_ARGS__, strerror(save)); \
480 #define DBG(fmt, ...) do { \
481 fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
484 static struct board_info
*find_board(char *id
)
486 struct board_info
*ret
;
487 struct board_info
*board
;
490 for (board
= boards
; board
->id
!= NULL
; board
++){
491 if (strcasecmp(id
, board
->id
) == 0) {
500 static struct board_info
*find_board_by_hwid(uint32_t hw_id
)
502 struct board_info
*board
;
504 for (board
= boards
; board
->id
!= NULL
; board
++) {
505 if (hw_id
== board
->hw_id
)
512 static struct flash_layout
*find_layout(char *id
)
514 struct flash_layout
*ret
;
515 struct flash_layout
*l
;
518 for (l
= layouts
; l
->id
!= NULL
; l
++){
519 if (strcasecmp(id
, l
->id
) == 0) {
528 static void usage(int status
)
530 FILE *stream
= (status
!= EXIT_SUCCESS
) ? stderr
: stdout
;
531 struct board_info
*board
;
533 fprintf(stream
, "Usage: %s [OPTIONS...]\n", progname
);
537 " -B <board> create image for the board specified with <board>\n"
538 " -c use combined kernel image\n"
539 " -E <ep> overwrite kernel entry point with <ep> (hexval prefixed with 0x)\n"
540 " -L <la> overwrite kernel load address with <la> (hexval prefixed with 0x)\n"
541 " -H <hwid> use hardware id specified with <hwid>\n"
542 " -W <hwrev> use hardware revision specified with <hwrev>\n"
543 " -F <id> use flash layout specified with <id>\n"
544 " -k <file> read kernel image from the file <file>\n"
545 " -r <file> read rootfs image from the file <file>\n"
546 " -a <align> align the rootfs start on an <align> bytes boundary\n"
547 " -R <offset> overwrite rootfs offset with <offset> (hexval prefixed with 0x)\n"
548 " -o <file> write output to the file <file>\n"
549 " -s strip padding from the end of the image\n"
550 " -S ignore firmware size limit (only for combined images)\n"
551 " -j add jffs2 end-of-filesystem markers\n"
552 " -N <vendor> set image vendor to <vendor>\n"
553 " -V <version> set image version to <version>\n"
554 " -v <version> set firmware version to <version>\n"
555 " -m <version> set header version to <version>\n"
556 " -i <file> inspect given firmware file <file>\n"
557 " -x extract kernel and rootfs while inspecting (requires -i)\n"
558 " -X <size> reserve <size> bytes in the firmware image (hexval prefixed with 0x)\n"
559 " -h show this screen\n"
565 static int get_md5(char *data
, int size
, char *md5
)
570 MD5_Update(&ctx
, data
, size
);
571 MD5_Final(md5
, &ctx
);
574 static int get_file_stat(struct file_info
*fdata
)
579 if (fdata
->file_name
== NULL
)
582 res
= stat(fdata
->file_name
, &st
);
584 ERRS("stat failed on %s", fdata
->file_name
);
588 fdata
->file_size
= st
.st_size
;
592 static int read_to_buf(struct file_info
*fdata
, char *buf
)
595 int ret
= EXIT_FAILURE
;
597 f
= fopen(fdata
->file_name
, "r");
599 ERRS("could not open \"%s\" for reading", fdata
->file_name
);
604 fread(buf
, fdata
->file_size
, 1, f
);
606 ERRS("unable to read from file \"%s\"", fdata
->file_name
);
618 static int check_options(void)
623 if (inspect_info
.file_name
) {
624 ret
= get_file_stat(&inspect_info
);
629 } else if (extract
) {
630 ERR("no firmware for inspection specified");
634 if (board_id
== NULL
&& opt_hw_id
== NULL
) {
635 ERR("either board or hardware id must be specified");
640 board
= find_board(board_id
);
642 ERR("unknown/unsupported board id \"%s\"", board_id
);
645 if (layout_id
== NULL
)
646 layout_id
= board
->layout_id
;
648 hw_id
= board
->hw_id
;
649 hw_rev
= board
->hw_rev
;
651 if (layout_id
== NULL
) {
652 ERR("flash layout is not specified");
655 hw_id
= strtoul(opt_hw_id
, NULL
, 0);
658 hw_rev
= strtoul(opt_hw_rev
, NULL
, 0);
663 layout
= find_layout(layout_id
);
664 if (layout
== NULL
) {
665 ERR("unknown flash layout \"%s\"", layout_id
);
670 kernel_la
= layout
->kernel_la
;
672 kernel_ep
= layout
->kernel_ep
;
674 rootfs_ofs
= layout
->rootfs_ofs
;
676 if (reserved_space
> layout
->fw_max_len
) {
677 ERR("reserved space is not valid");
681 fw_max_len
= layout
->fw_max_len
- reserved_space
;
683 if (kernel_info
.file_name
== NULL
) {
684 ERR("no kernel image specified");
688 ret
= get_file_stat(&kernel_info
);
692 kernel_len
= kernel_info
.file_size
;
695 exceed_bytes
= kernel_info
.file_size
- (fw_max_len
- sizeof(struct fw_header
));
696 if (exceed_bytes
> 0) {
698 ERR("kernel image is too big by %i bytes", exceed_bytes
);
701 layout
->fw_max_len
= sizeof(struct fw_header
) +
702 kernel_info
.file_size
+
706 if (rootfs_info
.file_name
== NULL
) {
707 ERR("no rootfs image specified");
711 ret
= get_file_stat(&rootfs_info
);
716 kernel_len
+= sizeof(struct fw_header
);
717 kernel_len
= ALIGN(kernel_len
, rootfs_align
);
718 kernel_len
-= sizeof(struct fw_header
);
720 DBG("kernel length aligned to %u", kernel_len
);
722 exceed_bytes
= kernel_len
+ rootfs_info
.file_size
- (fw_max_len
- sizeof(struct fw_header
));
723 if (exceed_bytes
> 0) {
724 ERR("images are too big by %i bytes", exceed_bytes
);
728 exceed_bytes
= kernel_info
.file_size
- (rootfs_ofs
- sizeof(struct fw_header
));
729 if (exceed_bytes
> 0) {
730 ERR("kernel image is too big by %i bytes", exceed_bytes
);
734 exceed_bytes
= rootfs_info
.file_size
- (fw_max_len
- rootfs_ofs
);
735 if (exceed_bytes
> 0) {
736 ERR("rootfs image is too big by %i bytes", exceed_bytes
);
742 if (ofname
== NULL
) {
743 ERR("no output file specified");
747 ret
= sscanf(fw_ver
, "%d.%d.%d", &fw_ver_hi
, &fw_ver_mid
, &fw_ver_lo
);
749 ERR("invalid firmware version '%s'", fw_ver
);
753 if (opt_hdr_ver
== 1) {
754 hdr_ver
= HEADER_VERSION_V1
;
755 } else if (opt_hdr_ver
== 2) {
756 hdr_ver
= HEADER_VERSION_V2
;
758 ERR("invalid header version '%u'", opt_hdr_ver
);
765 static void fill_header(char *buf
, int len
)
767 struct fw_header
*hdr
= (struct fw_header
*)buf
;
769 memset(hdr
, 0, sizeof(struct fw_header
));
771 hdr
->version
= htonl(hdr_ver
);
772 strncpy(hdr
->vendor_name
, vendor
, sizeof(hdr
->vendor_name
));
773 strncpy(hdr
->fw_version
, version
, sizeof(hdr
->fw_version
));
774 hdr
->hw_id
= htonl(hw_id
);
775 hdr
->hw_rev
= htonl(hw_rev
);
777 if (boot_info
.file_size
== 0)
778 memcpy(hdr
->md5sum1
, md5salt_normal
, sizeof(hdr
->md5sum1
));
780 memcpy(hdr
->md5sum1
, md5salt_boot
, sizeof(hdr
->md5sum1
));
782 hdr
->kernel_la
= htonl(kernel_la
);
783 hdr
->kernel_ep
= htonl(kernel_ep
);
784 hdr
->fw_length
= htonl(layout
->fw_max_len
);
785 hdr
->kernel_ofs
= htonl(sizeof(struct fw_header
));
786 hdr
->kernel_len
= htonl(kernel_len
);
788 hdr
->rootfs_ofs
= htonl(rootfs_ofs
);
789 hdr
->rootfs_len
= htonl(rootfs_info
.file_size
);
792 hdr
->ver_hi
= htons(fw_ver_hi
);
793 hdr
->ver_mid
= htons(fw_ver_mid
);
794 hdr
->ver_lo
= htons(fw_ver_lo
);
796 get_md5(buf
, len
, hdr
->md5sum1
);
799 static int pad_jffs2(char *buf
, int currlen
)
805 pad_mask
= (64 * 1024);
806 while ((len
< layout
->fw_max_len
) && (pad_mask
!= 0)) {
810 for (i
= 10; i
< 32; i
++) {
816 len
= ALIGN(len
, mask
);
818 for (i
= 10; i
< 32; i
++) {
820 if ((len
& (mask
- 1)) == 0)
824 for (i
= 0; i
< sizeof(jffs2_eof_mark
); i
++)
825 buf
[len
+ i
] = jffs2_eof_mark
[i
];
827 len
+= sizeof(jffs2_eof_mark
);
833 static int write_fw(char *data
, int len
)
836 int ret
= EXIT_FAILURE
;
838 f
= fopen(ofname
, "w");
840 ERRS("could not open \"%s\" for writing", ofname
);
845 fwrite(data
, len
, 1, f
);
847 ERRS("unable to write output file");
851 DBG("firmware file \"%s\" completed", ofname
);
858 if (ret
!= EXIT_SUCCESS
) {
865 static int build_fw(void)
870 int ret
= EXIT_FAILURE
;
873 buflen
= layout
->fw_max_len
;
875 buf
= malloc(buflen
);
877 ERR("no memory for buffer\n");
881 memset(buf
, 0xff, buflen
);
882 p
= buf
+ sizeof(struct fw_header
);
883 ret
= read_to_buf(&kernel_info
, p
);
887 writelen
= sizeof(struct fw_header
) + kernel_len
;
893 p
= buf
+ rootfs_ofs
;
895 ret
= read_to_buf(&rootfs_info
, p
);
900 writelen
+= rootfs_info
.file_size
;
902 writelen
= rootfs_ofs
+ rootfs_info
.file_size
;
905 writelen
= pad_jffs2(buf
, writelen
);
911 fill_header(buf
, writelen
);
912 ret
= write_fw(buf
, writelen
);
924 /* Helper functions to inspect_fw() representing different output formats */
925 static inline void inspect_fw_pstr(char *label
, char *str
)
927 printf("%-23s: %s\n", label
, str
);
930 static inline void inspect_fw_phex(char *label
, uint32_t val
)
932 printf("%-23s: 0x%08x\n", label
, val
);
935 static inline void inspect_fw_phexpost(char *label
,
936 uint32_t val
, char *post
)
938 printf("%-23s: 0x%08x (%s)\n", label
, val
, post
);
941 static inline void inspect_fw_phexdef(char *label
,
942 uint32_t val
, uint32_t defval
)
944 printf("%-23s: 0x%08x ", label
, val
);
947 printf("(== OpenWrt default)\n");
949 printf("(OpenWrt default: 0x%08x)\n", defval
);
952 static inline void inspect_fw_phexexp(char *label
,
953 uint32_t val
, uint32_t expval
)
955 printf("%-23s: 0x%08x ", label
, val
);
960 printf("(expected: 0x%08x)\n", expval
);
963 static inline void inspect_fw_phexdec(char *label
, uint32_t val
)
965 printf("%-23s: 0x%08x / %8u bytes\n", label
, val
, val
);
968 static inline void inspect_fw_phexdecdef(char *label
,
969 uint32_t val
, uint32_t defval
)
971 printf("%-23s: 0x%08x / %8u bytes ", label
, val
, val
);
974 printf("(== OpenWrt default)\n");
976 printf("(OpenWrt default: 0x%08x)\n", defval
);
979 static inline void inspect_fw_pmd5sum(char *label
, uint8_t *val
, char *text
)
983 printf("%-23s:", label
);
984 for (i
=0; i
<MD5SUM_LEN
; i
++)
985 printf(" %02x", val
[i
]);
986 printf(" %s\n", text
);
989 static int inspect_fw(void)
992 struct fw_header
*hdr
;
993 uint8_t md5sum
[MD5SUM_LEN
];
994 struct board_info
*board
;
995 int ret
= EXIT_FAILURE
;
997 buf
= malloc(inspect_info
.file_size
);
999 ERR("no memory for buffer!\n");
1003 ret
= read_to_buf(&inspect_info
, buf
);
1006 hdr
= (struct fw_header
*)buf
;
1008 inspect_fw_pstr("File name", inspect_info
.file_name
);
1009 inspect_fw_phexdec("File size", inspect_info
.file_size
);
1011 if ((ntohl(hdr
->version
) != HEADER_VERSION_V1
) &&
1012 (ntohl(hdr
->version
) != HEADER_VERSION_V2
)) {
1013 ERR("file does not seem to have V1/V2 header!\n");
1017 inspect_fw_phexdec("Version 1 Header size", sizeof(struct fw_header
));
1019 if (ntohl(hdr
->unk1
) != 0)
1020 inspect_fw_phexdec("Unknown value 1", hdr
->unk1
);
1022 memcpy(md5sum
, hdr
->md5sum1
, sizeof(md5sum
));
1023 if (ntohl(hdr
->boot_len
) == 0)
1024 memcpy(hdr
->md5sum1
, md5salt_normal
, sizeof(md5sum
));
1026 memcpy(hdr
->md5sum1
, md5salt_boot
, sizeof(md5sum
));
1027 get_md5(buf
, inspect_info
.file_size
, hdr
->md5sum1
);
1029 if (memcmp(md5sum
, hdr
->md5sum1
, sizeof(md5sum
))) {
1030 inspect_fw_pmd5sum("Header MD5Sum1", md5sum
, "(*ERROR*)");
1031 inspect_fw_pmd5sum(" --> expected", hdr
->md5sum1
, "");
1033 inspect_fw_pmd5sum("Header MD5Sum1", md5sum
, "(ok)");
1035 if (ntohl(hdr
->unk2
) != 0)
1036 inspect_fw_phexdec("Unknown value 2", hdr
->unk2
);
1037 inspect_fw_pmd5sum("Header MD5Sum2", hdr
->md5sum2
,
1038 "(purpose yet unknown, unchecked here)");
1039 if (ntohl(hdr
->unk3
) != 0)
1040 inspect_fw_phexdec("Unknown value 3", hdr
->unk3
);
1044 inspect_fw_pstr("Vendor name", hdr
->vendor_name
);
1045 inspect_fw_pstr("Firmware version", hdr
->fw_version
);
1046 board
= find_board_by_hwid(ntohl(hdr
->hw_id
));
1048 layout
= find_layout(board
->layout_id
);
1049 inspect_fw_phexpost("Hardware ID",
1050 ntohl(hdr
->hw_id
), board
->id
);
1051 inspect_fw_phexexp("Hardware Revision",
1052 ntohl(hdr
->hw_rev
), board
->hw_rev
);
1054 inspect_fw_phexpost("Hardware ID",
1055 ntohl(hdr
->hw_id
), "unknown");
1056 inspect_fw_phex("Hardware Revision",
1057 ntohl(hdr
->hw_rev
));
1062 inspect_fw_phexdec("Kernel data offset",
1063 ntohl(hdr
->kernel_ofs
));
1064 inspect_fw_phexdec("Kernel data length",
1065 ntohl(hdr
->kernel_len
));
1067 inspect_fw_phexdef("Kernel load address",
1068 ntohl(hdr
->kernel_la
),
1069 layout
? layout
->kernel_la
: 0xffffffff);
1070 inspect_fw_phexdef("Kernel entry point",
1071 ntohl(hdr
->kernel_ep
),
1072 layout
? layout
->kernel_ep
: 0xffffffff);
1073 inspect_fw_phexdecdef("Rootfs data offset",
1074 ntohl(hdr
->rootfs_ofs
),
1075 layout
? layout
->rootfs_ofs
: 0xffffffff);
1077 inspect_fw_phex("Kernel load address",
1078 ntohl(hdr
->kernel_la
));
1079 inspect_fw_phex("Kernel entry point",
1080 ntohl(hdr
->kernel_ep
));
1081 inspect_fw_phexdec("Rootfs data offset",
1082 ntohl(hdr
->rootfs_ofs
));
1084 inspect_fw_phexdec("Rootfs data length",
1085 ntohl(hdr
->rootfs_len
));
1086 inspect_fw_phexdec("Boot loader data offset",
1087 ntohl(hdr
->boot_ofs
));
1088 inspect_fw_phexdec("Boot loader data length",
1089 ntohl(hdr
->boot_len
));
1090 inspect_fw_phexdec("Total firmware length",
1091 ntohl(hdr
->fw_length
));
1099 filename
= malloc(strlen(inspect_info
.file_name
) + 8);
1100 sprintf(filename
, "%s-kernel", inspect_info
.file_name
);
1101 printf("Extracting kernel to \"%s\"...\n", filename
);
1102 fp
= fopen(filename
, "w");
1104 if (!fwrite(buf
+ ntohl(hdr
->kernel_ofs
),
1105 ntohl(hdr
->kernel_len
), 1, fp
)) {
1106 ERR("error in fwrite(): %s", strerror(errno
));
1110 ERR("error in fopen(): %s", strerror(errno
));
1114 filename
= malloc(strlen(inspect_info
.file_name
) + 8);
1115 sprintf(filename
, "%s-rootfs", inspect_info
.file_name
);
1116 printf("Extracting rootfs to \"%s\"...\n", filename
);
1117 fp
= fopen(filename
, "w");
1119 if (!fwrite(buf
+ ntohl(hdr
->rootfs_ofs
),
1120 ntohl(hdr
->rootfs_len
), 1, fp
)) {
1121 ERR("error in fwrite(): %s", strerror(errno
));
1125 ERR("error in fopen(): %s", strerror(errno
));
1136 int main(int argc
, char *argv
[])
1138 int ret
= EXIT_FAILURE
;
1143 progname
= basename(argv
[0]);
1148 c
= getopt(argc
, argv
, "a:B:H:E:F:L:m:V:N:W:ci:k:r:R:o:xX:hsSjv:");
1154 sscanf(optarg
, "0x%x", &rootfs_align
);
1163 sscanf(optarg
, "0x%x", &kernel_ep
);
1169 opt_hw_rev
= optarg
;
1172 sscanf(optarg
, "0x%x", &kernel_la
);
1175 sscanf(optarg
, "%u", &opt_hdr_ver
);
1190 kernel_info
.file_name
= optarg
;
1193 rootfs_info
.file_name
= optarg
;
1196 sscanf(optarg
, "0x%x", &rootfs_ofs
);
1208 inspect_info
.file_name
= optarg
;
1217 usage(EXIT_SUCCESS
);
1220 sscanf(optarg
, "0x%x", &reserved_space
);
1223 usage(EXIT_FAILURE
);
1228 ret
= check_options();
1232 if (!inspect_info
.file_name
)