projects / openwrt.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
ar71xx: use the new om-watchdog package for OM2P
[openwrt.git] / tools / firmware-utils / src / mktplinkfw.c
1 /*
2 * Copyright (C) 2009 Gabor Juhos <juhosg@openwrt.org>
3 *
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>
7 *
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.
11 *
12 */
13
14 #include <stdio.h>
15 #include <stdlib.h>
16 #include <stdint.h>
17 #include <string.h>
18 #include <unistd.h> /* for unlink() */
19 #include <libgen.h>
20 #include <getopt.h> /* for getopt() */
21 #include <stdarg.h>
22 #include <errno.h>
23 #include <sys/stat.h>
24
25 #include <arpa/inet.h>
26 #include <netinet/in.h>
27
28 #include "md5.h"
29
30 #define ALIGN(x,a) ({ typeof(a) __a = (a); (((x) + __a - 1) & ~(__a - 1)); })
31
32 #define HEADER_VERSION_V1 0x01000000
33 #define HWID_TL_MR3220_V1 0x32200001
34 #define HWID_TL_MR3420_V1 0x34200001
35 #define HWID_TL_WA901ND_V1 0x09010001
36 #define HWID_TL_WA901ND_V2 0x09010002
37 #define HWID_TL_WR703N_V1 0x07030101
38 #define HWID_TL_WR741ND_V1 0x07410001
39 #define HWID_TL_WR741ND_V4 0x07410004
40 #define HWID_TL_WR740N_V1 0x07400001
41 #define HWID_TL_WR740N_V3 0x07400003
42 #define HWID_TL_WR743ND_V1 0x07430001
43 #define HWID_TL_WR841N_V1_5 0x08410002
44 #define HWID_TL_WR841ND_V3 0x08410003
45 #define HWID_TL_WR841ND_V5 0x08410005
46 #define HWID_TL_WR841ND_V7 0x08410007
47 #define HWID_TL_WR941ND_V2 0x09410002
48 #define HWID_TL_WR941ND_V4 0x09410004
49 #define HWID_TL_WR1043ND_V1 0x10430001
50
51 #define MD5SUM_LEN 16
52
53 struct file_info {
54 char *file_name; /* name of the file */
55 uint32_t file_size; /* length of the file */
56 };
57
58 struct fw_header {
59 uint32_t version; /* header version */
60 char vendor_name[24];
61 char fw_version[36];
62 uint32_t hw_id; /* hardware id */
63 uint32_t hw_rev; /* hardware revision */
64 uint32_t unk1;
65 uint8_t md5sum1[MD5SUM_LEN];
66 uint32_t unk2;
67 uint8_t md5sum2[MD5SUM_LEN];
68 uint32_t unk3;
69 uint32_t kernel_la; /* kernel load address */
70 uint32_t kernel_ep; /* kernel entry point */
71 uint32_t fw_length; /* total length of the firmware */
72 uint32_t kernel_ofs; /* kernel data offset */
73 uint32_t kernel_len; /* kernel data length */
74 uint32_t rootfs_ofs; /* rootfs data offset */
75 uint32_t rootfs_len; /* rootfs data length */
76 uint32_t boot_ofs; /* bootloader data offset */
77 uint32_t boot_len; /* bootloader data length */
78 uint8_t pad[360];
79 } __attribute__ ((packed));
80
81 struct flash_layout {
82 char *id;
83 uint32_t fw_max_len;
84 uint32_t kernel_la;
85 uint32_t kernel_ep;
86 uint32_t rootfs_ofs;
87 };
88
89 struct board_info {
90 char *id;
91 uint32_t hw_id;
92 uint32_t hw_rev;
93 char *layout_id;
94 };
95
96 /*
97 * Globals
98 */
99 static char *ofname;
100 static char *progname;
101 static char *vendor = "TP-LINK Technologies";
102 static char *version = "ver. 1.0";
103
104 static char *board_id;
105 static struct board_info *board;
106 static char *layout_id;
107 static struct flash_layout *layout;
108 static char *opt_hw_id;
109 static uint32_t hw_id;
110 static char *opt_hw_rev;
111 static uint32_t hw_rev;
112 static struct file_info kernel_info;
113 static uint32_t kernel_la = 0;
114 static uint32_t kernel_ep = 0;
115 static uint32_t kernel_len = 0;
116 static struct file_info rootfs_info;
117 static uint32_t rootfs_ofs = 0;
118 static uint32_t rootfs_align;
119 static struct file_info boot_info;
120 static int combined;
121 static int strip_padding;
122 static int add_jffs2_eof;
123 static unsigned char jffs2_eof_mark[4] = {0xde, 0xad, 0xc0, 0xde};
124
125 static struct file_info inspect_info;
126 static int extract = 0;
127
128 char md5salt_normal[MD5SUM_LEN] = {
129 0xdc, 0xd7, 0x3a, 0xa5, 0xc3, 0x95, 0x98, 0xfb,
130 0xdd, 0xf9, 0xe7, 0xf4, 0x0e, 0xae, 0x47, 0x38,
131 };
132
133 char md5salt_boot[MD5SUM_LEN] = {
134 0x8c, 0xef, 0x33, 0x5b, 0xd5, 0xc5, 0xce, 0xfa,
135 0xa7, 0x9c, 0x28, 0xda, 0xb2, 0xe9, 0x0f, 0x42,
136 };
137
138 static struct flash_layout layouts[] = {
139 {
140 .id = "4M",
141 .fw_max_len = 0x3c0000,
142 .kernel_la = 0x80060000,
143 .kernel_ep = 0x80060000,
144 .rootfs_ofs = 0x140000,
145 }, {
146 .id = "4Mlzma",
147 .fw_max_len = 0x3c0000,
148 .kernel_la = 0x80060000,
149 .kernel_ep = 0x80060000,
150 .rootfs_ofs = 0x100000,
151 }, {
152 .id = "8M",
153 .fw_max_len = 0x7c0000,
154 .kernel_la = 0x80060000,
155 .kernel_ep = 0x80060000,
156 .rootfs_ofs = 0x140000,
157 }, {
158 /* terminating entry */
159 }
160 };
161
162 static struct board_info boards[] = {
163 {
164 .id = "TL-MR3220v1",
165 .hw_id = HWID_TL_MR3220_V1,
166 .hw_rev = 1,
167 .layout_id = "4M",
168 }, {
169 .id = "TL-MR3420v1",
170 .hw_id = HWID_TL_MR3420_V1,
171 .hw_rev = 1,
172 .layout_id = "4M",
173 }, {
174 .id = "TL-WA901NDv1",
175 .hw_id = HWID_TL_WA901ND_V1,
176 .hw_rev = 1,
177 .layout_id = "4M",
178 }, {
179 .id = "TL-WA901NDv2",
180 .hw_id = HWID_TL_WA901ND_V2,
181 .hw_rev = 1,
182 .layout_id = "4M",
183 }, {
184 .id = "TL-WR741NDv1",
185 .hw_id = HWID_TL_WR741ND_V1,
186 .hw_rev = 1,
187 .layout_id = "4M",
188 }, {
189 .id = "TL-WR741NDv4",
190 .hw_id = HWID_TL_WR741ND_V4,
191 .hw_rev = 1,
192 .layout_id = "4Mlzma",
193 }, {
194 .id = "TL-WR740Nv1",
195 .hw_id = HWID_TL_WR740N_V1,
196 .hw_rev = 1,
197 .layout_id = "4M",
198 }, {
199 .id = "TL-WR740Nv3",
200 .hw_id = HWID_TL_WR740N_V3,
201 .hw_rev = 1,
202 .layout_id = "4M",
203 }, {
204 .id = "TL-WR743NDv1",
205 .hw_id = HWID_TL_WR743ND_V1,
206 .hw_rev = 1,
207 .layout_id = "4M",
208 }, {
209 .id = "TL-WR841Nv1.5",
210 .hw_id = HWID_TL_WR841N_V1_5,
211 .hw_rev = 2,
212 .layout_id = "4M",
213 }, {
214 .id = "TL-WR841NDv3",
215 .hw_id = HWID_TL_WR841ND_V3,
216 .hw_rev = 3,
217 .layout_id = "4M",
218 }, {
219 .id = "TL-WR841NDv5",
220 .hw_id = HWID_TL_WR841ND_V5,
221 .hw_rev = 1,
222 .layout_id = "4M",
223 }, {
224 .id = "TL-WR841NDv7",
225 .hw_id = HWID_TL_WR841ND_V7,
226 .hw_rev = 1,
227 .layout_id = "4M",
228 }, {
229 .id = "TL-WR941NDv2",
230 .hw_id = HWID_TL_WR941ND_V2,
231 .hw_rev = 2,
232 .layout_id = "4M",
233 }, {
234 .id = "TL-WR941NDv4",
235 .hw_id = HWID_TL_WR941ND_V4,
236 .hw_rev = 1,
237 .layout_id = "4M",
238 }, {
239 .id = "TL-WR1043NDv1",
240 .hw_id = HWID_TL_WR1043ND_V1,
241 .hw_rev = 1,
242 .layout_id = "8M",
243 }, {
244 .id = "TL-WR703Nv1",
245 .hw_id = HWID_TL_WR703N_V1,
246 .hw_rev = 1,
247 .layout_id = "4Mlzma",
248 }, {
249 /* terminating entry */
250 }
251 };
252
253 /*
254 * Message macros
255 */
256 #define ERR(fmt, ...) do { \
257 fflush(0); \
258 fprintf(stderr, "[%s] *** error: " fmt "\n", \
259 progname, ## __VA_ARGS__ ); \
260 } while (0)
261
262 #define ERRS(fmt, ...) do { \
263 int save = errno; \
264 fflush(0); \
265 fprintf(stderr, "[%s] *** error: " fmt "\n", \
266 progname, ## __VA_ARGS__, strerror(save)); \
267 } while (0)
268
269 #define DBG(fmt, ...) do { \
270 fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
271 } while (0)
272
273 static struct board_info *find_board(char *id)
274 {
275 struct board_info *ret;
276 struct board_info *board;
277
278 ret = NULL;
279 for (board = boards; board->id != NULL; board++){
280 if (strcasecmp(id, board->id) == 0) {
281 ret = board;
282 break;
283 }
284 };
285
286 return ret;
287 }
288
289 static struct board_info *find_board_by_hwid(uint32_t hw_id)
290 {
291 struct board_info *board;
292
293 for (board = boards; board->id != NULL; board++) {
294 if (hw_id == board->hw_id)
295 return board;
296 };
297
298 return NULL;
299 }
300
301 static struct flash_layout *find_layout(char *id)
302 {
303 struct flash_layout *ret;
304 struct flash_layout *l;
305
306 ret = NULL;
307 for (l = layouts; l->id != NULL; l++){
308 if (strcasecmp(id, l->id) == 0) {
309 ret = l;
310 break;
311 }
312 };
313
314 return ret;
315 }
316
317 static void usage(int status)
318 {
319 FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
320 struct board_info *board;
321
322 fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
323 fprintf(stream,
324 "\n"
325 "Options:\n"
326 " -B <board> create image for the board specified with <board>\n"
327 " -c use combined kernel image\n"
328 " -E <ep> overwrite kernel entry point with <ep> (hexval prefixed with 0x)\n"
329 " -L <la> overwrite kernel load address with <la> (hexval prefixed with 0x)\n"
330 " -H <hwid> use hardware id specified with <hwid>\n"
331 " -F <id> use flash layout specified with <id>\n"
332 " -k <file> read kernel image from the file <file>\n"
333 " -r <file> read rootfs image from the file <file>\n"
334 " -a <align> align the rootfs start on an <align> bytes boundary\n"
335 " -R <offset> overwrite rootfs offset with <offset> (hexval prefixed with 0x)\n"
336 " -o <file> write output to the file <file>\n"
337 " -s strip padding from the end of the image\n"
338 " -j add jffs2 end-of-filesystem markers\n"
339 " -N <vendor> set image vendor to <vendor>\n"
340 " -V <version> set image version to <version>\n"
341 " -i <file> inspect given firmware file <file>\n"
342 " -x extract kernel and rootfs while inspecting (requires -i)\n"
343 " -h show this screen\n"
344 );
345
346 exit(status);
347 }
348
349 static int get_md5(char *data, int size, char *md5)
350 {
351 MD5_CTX ctx;
352
353 MD5_Init(&ctx);
354 MD5_Update(&ctx, data, size);
355 MD5_Final(md5, &ctx);
356 }
357
358 static int get_file_stat(struct file_info *fdata)
359 {
360 struct stat st;
361 int res;
362
363 if (fdata->file_name == NULL)
364 return 0;
365
366 res = stat(fdata->file_name, &st);
367 if (res){
368 ERRS("stat failed on %s", fdata->file_name);
369 return res;
370 }
371
372 fdata->file_size = st.st_size;
373 return 0;
374 }
375
376 static int read_to_buf(struct file_info *fdata, char *buf)
377 {
378 FILE *f;
379 int ret = EXIT_FAILURE;
380
381 f = fopen(fdata->file_name, "r");
382 if (f == NULL) {
383 ERRS("could not open \"%s\" for reading", fdata->file_name);
384 goto out;
385 }
386
387 errno = 0;
388 fread(buf, fdata->file_size, 1, f);
389 if (errno != 0) {
390 ERRS("unable to read from file \"%s\"", fdata->file_name);
391 goto out_close;
392 }
393
394 ret = EXIT_SUCCESS;
395
396 out_close:
397 fclose(f);
398 out:
399 return ret;
400 }
401
402 static int check_options(void)
403 {
404 int ret;
405
406 if (inspect_info.file_name) {
407 ret = get_file_stat(&inspect_info);
408 if (ret)
409 return ret;
410
411 return 0;
412 } else if (extract) {
413 ERR("no firmware for inspection specified");
414 return -1;
415 }
416
417 if (board_id == NULL && opt_hw_id == NULL) {
418 ERR("either board or hardware id must be specified");
419 return -1;
420 }
421
422 if (board_id) {
423 board = find_board(board_id);
424 if (board == NULL) {
425 ERR("unknown/unsupported board id \"%s\"", board_id);
426 return -1;
427 }
428 if (layout_id == NULL)
429 layout_id = board->layout_id;
430
431 hw_id = board->hw_id;
432 hw_rev = board->hw_rev;
433 } else {
434 if (layout_id == NULL) {
435 ERR("flash layout is not specified");
436 return -1;
437 }
438 hw_id = strtoul(opt_hw_id, NULL, 0);
439
440 if (opt_hw_rev)
441 hw_rev = strtoul(opt_hw_rev, NULL, 0);
442 else
443 hw_rev = 1;
444 }
445
446 layout = find_layout(layout_id);
447 if (layout == NULL) {
448 ERR("unknown flash layout \"%s\"", layout_id);
449 return -1;
450 }
451
452 if (!kernel_la)
453 kernel_la = layout->kernel_la;
454 if (!kernel_ep)
455 kernel_ep = layout->kernel_ep;
456 if (!rootfs_ofs)
457 rootfs_ofs = layout->rootfs_ofs;
458
459 if (kernel_info.file_name == NULL) {
460 ERR("no kernel image specified");
461 return -1;
462 }
463
464 ret = get_file_stat(&kernel_info);
465 if (ret)
466 return ret;
467
468 kernel_len = kernel_info.file_size;
469
470 if (combined) {
471 if (kernel_info.file_size >
472 layout->fw_max_len - sizeof(struct fw_header)) {
473 ERR("kernel image is too big");
474 return -1;
475 }
476 } else {
477 if (rootfs_info.file_name == NULL) {
478 ERR("no rootfs image specified");
479 return -1;
480 }
481
482 ret = get_file_stat(&rootfs_info);
483 if (ret)
484 return ret;
485
486 if (rootfs_align) {
487 kernel_len += sizeof(struct fw_header);
488 kernel_len = ALIGN(kernel_len, rootfs_align);
489 kernel_len -= sizeof(struct fw_header);
490
491 DBG("kernel length aligned to %u", kernel_len);
492
493 if (kernel_len + rootfs_info.file_size >
494 layout->fw_max_len - sizeof(struct fw_header)) {
495 ERR("images are too big");
496 return -1;
497 }
498 } else {
499 if (kernel_info.file_size >
500 rootfs_ofs - sizeof(struct fw_header)) {
501 ERR("kernel image is too big");
502 return -1;
503 }
504
505 if (rootfs_info.file_size >
506 (layout->fw_max_len - rootfs_ofs)) {
507 ERR("rootfs image is too big");
508 return -1;
509 }
510 }
511 }
512
513 if (ofname == NULL) {
514 ERR("no output file specified");
515 return -1;
516 }
517
518 return 0;
519 }
520
521 static void fill_header(char *buf, int len)
522 {
523 struct fw_header *hdr = (struct fw_header *)buf;
524
525 memset(hdr, 0, sizeof(struct fw_header));
526
527 hdr->version = htonl(HEADER_VERSION_V1);
528 strncpy(hdr->vendor_name, vendor, sizeof(hdr->vendor_name));
529 strncpy(hdr->fw_version, version, sizeof(hdr->fw_version));
530 hdr->hw_id = htonl(hw_id);
531 hdr->hw_rev = htonl(hw_rev);
532
533 if (boot_info.file_size == 0)
534 memcpy(hdr->md5sum1, md5salt_normal, sizeof(hdr->md5sum1));
535 else
536 memcpy(hdr->md5sum1, md5salt_boot, sizeof(hdr->md5sum1));
537
538 hdr->kernel_la = htonl(kernel_la);
539 hdr->kernel_ep = htonl(kernel_ep);
540 hdr->fw_length = htonl(layout->fw_max_len);
541 hdr->kernel_ofs = htonl(sizeof(struct fw_header));
542 hdr->kernel_len = htonl(kernel_len);
543 if (!combined) {
544 hdr->rootfs_ofs = htonl(rootfs_ofs);
545 hdr->rootfs_len = htonl(rootfs_info.file_size);
546 }
547
548 get_md5(buf, len, hdr->md5sum1);
549 }
550
551 static int pad_jffs2(char *buf, int currlen)
552 {
553 int len;
554 uint32_t pad_mask;
555
556 len = currlen;
557 pad_mask = (64 * 1024);
558 while ((len < layout->fw_max_len) && (pad_mask != 0)) {
559 uint32_t mask;
560 int i;
561
562 for (i = 10; i < 32; i++) {
563 mask = 1 << i;
564 if (pad_mask & mask)
565 break;
566 }
567
568 len = ALIGN(len, mask);
569
570 for (i = 10; i < 32; i++) {
571 mask = 1 << i;
572 if ((len & (mask - 1)) == 0)
573 pad_mask &= ~mask;
574 }
575
576 for (i = 0; i < sizeof(jffs2_eof_mark); i++)
577 buf[len + i] = jffs2_eof_mark[i];
578
579 len += sizeof(jffs2_eof_mark);
580 }
581
582 return len;
583 }
584
585 static int write_fw(char *data, int len)
586 {
587 FILE *f;
588 int ret = EXIT_FAILURE;
589
590 f = fopen(ofname, "w");
591 if (f == NULL) {
592 ERRS("could not open \"%s\" for writing", ofname);
593 goto out;
594 }
595
596 errno = 0;
597 fwrite(data, len, 1, f);
598 if (errno) {
599 ERRS("unable to write output file");
600 goto out_flush;
601 }
602
603 DBG("firmware file \"%s\" completed", ofname);
604
605 ret = EXIT_SUCCESS;
606
607 out_flush:
608 fflush(f);
609 fclose(f);
610 if (ret != EXIT_SUCCESS) {
611 unlink(ofname);
612 }
613 out:
614 return ret;
615 }
616
617 static int build_fw(void)
618 {
619 int buflen;
620 char *buf;
621 char *p;
622 int ret = EXIT_FAILURE;
623 int writelen = 0;
624
625 buflen = layout->fw_max_len;
626
627 buf = malloc(buflen);
628 if (!buf) {
629 ERR("no memory for buffer\n");
630 goto out;
631 }
632
633 memset(buf, 0xff, buflen);
634 p = buf + sizeof(struct fw_header);
635 ret = read_to_buf(&kernel_info, p);
636 if (ret)
637 goto out_free_buf;
638
639 writelen = sizeof(struct fw_header) + kernel_len;
640
641 if (!combined) {
642 if (rootfs_align)
643 p = buf + writelen;
644 else
645 p = buf + rootfs_ofs;
646
647 ret = read_to_buf(&rootfs_info, p);
648 if (ret)
649 goto out_free_buf;
650
651 if (rootfs_align)
652 writelen += rootfs_info.file_size;
653 else
654 writelen = rootfs_ofs + rootfs_info.file_size;
655
656 if (add_jffs2_eof)
657 writelen = pad_jffs2(buf, writelen);
658 }
659
660 if (!strip_padding)
661 writelen = buflen;
662
663 fill_header(buf, writelen);
664 ret = write_fw(buf, writelen);
665 if (ret)
666 goto out_free_buf;
667
668 ret = EXIT_SUCCESS;
669
670 out_free_buf:
671 free(buf);
672 out:
673 return ret;
674 }
675
676 /* Helper functions to inspect_fw() representing different output formats */
677 static inline void inspect_fw_pstr(char *label, char *str)
678 {
679 printf("%-23s: %s\n", label, str);
680 }
681
682 static inline void inspect_fw_phex(char *label, uint32_t val)
683 {
684 printf("%-23s: 0x%08x\n", label, val);
685 }
686
687 static inline void inspect_fw_phexpost(char *label,
688 uint32_t val, char *post)
689 {
690 printf("%-23s: 0x%08x (%s)\n", label, val, post);
691 }
692
693 static inline void inspect_fw_phexdef(char *label,
694 uint32_t val, uint32_t defval)
695 {
696 printf("%-23s: 0x%08x ", label, val);
697
698 if (val == defval)
699 printf("(== OpenWrt default)\n");
700 else
701 printf("(OpenWrt default: 0x%08x)\n", defval);
702 }
703
704 static inline void inspect_fw_phexexp(char *label,
705 uint32_t val, uint32_t expval)
706 {
707 printf("%-23s: 0x%08x ", label, val);
708
709 if (val == expval)
710 printf("(ok)\n");
711 else
712 printf("(expected: 0x%08x)\n", expval);
713 }
714
715 static inline void inspect_fw_phexdec(char *label, uint32_t val)
716 {
717 printf("%-23s: 0x%08x / %8u bytes\n", label, val, val);
718 }
719
720 static inline void inspect_fw_phexdecdef(char *label,
721 uint32_t val, uint32_t defval)
722 {
723 printf("%-23s: 0x%08x / %8u bytes ", label, val, val);
724
725 if (val == defval)
726 printf("(== OpenWrt default)\n");
727 else
728 printf("(OpenWrt default: 0x%08x)\n", defval);
729 }
730
731 static inline void inspect_fw_pmd5sum(char *label, uint8_t *val, char *text)
732 {
733 int i;
734
735 printf("%-23s:", label);
736 for (i=0; i<MD5SUM_LEN; i++)
737 printf(" %02x", val[i]);
738 printf(" %s\n", text);
739 }
740
741 static int inspect_fw(void)
742 {
743 char *buf;
744 struct fw_header *hdr;
745 uint8_t md5sum[MD5SUM_LEN];
746 struct board_info *board;
747 int ret = EXIT_FAILURE;
748
749 buf = malloc(inspect_info.file_size);
750 if (!buf) {
751 ERR("no memory for buffer!\n");
752 goto out;
753 }
754
755 ret = read_to_buf(&inspect_info, buf);
756 if (ret)
757 goto out_free_buf;
758 hdr = (struct fw_header *)buf;
759
760 inspect_fw_pstr("File name", inspect_info.file_name);
761 inspect_fw_phexdec("File size", inspect_info.file_size);
762
763 if (ntohl(hdr->version) != HEADER_VERSION_V1) {
764 ERR("file does not seem to have V1 header!\n");
765 goto out_free_buf;
766 }
767
768 inspect_fw_phexdec("Version 1 Header size", sizeof(struct fw_header));
769
770 if (ntohl(hdr->unk1) != 0)
771 inspect_fw_phexdec("Unknown value 1", hdr->unk1);
772
773 memcpy(md5sum, hdr->md5sum1, sizeof(md5sum));
774 if (ntohl(hdr->boot_len) == 0)
775 memcpy(hdr->md5sum1, md5salt_normal, sizeof(md5sum));
776 else
777 memcpy(hdr->md5sum1, md5salt_boot, sizeof(md5sum));
778 get_md5(buf, inspect_info.file_size, hdr->md5sum1);
779
780 if (memcmp(md5sum, hdr->md5sum1, sizeof(md5sum))) {
781 inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(*ERROR*)");
782 inspect_fw_pmd5sum(" --> expected", hdr->md5sum1, "");
783 } else {
784 inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(ok)");
785 }
786 if (ntohl(hdr->unk2) != 0)
787 inspect_fw_phexdec("Unknown value 2", hdr->unk2);
788 inspect_fw_pmd5sum("Header MD5Sum2", hdr->md5sum2,
789 "(purpose yet unknown, unchecked here)");
790 if (ntohl(hdr->unk3) != 0)
791 inspect_fw_phexdec("Unknown value 3", hdr->unk3);
792
793 printf("\n");
794
795 inspect_fw_pstr("Vendor name", hdr->vendor_name);
796 inspect_fw_pstr("Firmware version", hdr->fw_version);
797 board = find_board_by_hwid(ntohl(hdr->hw_id));
798 if (board) {
799 layout = find_layout(board->layout_id);
800 inspect_fw_phexpost("Hardware ID",
801 ntohl(hdr->hw_id), board->id);
802 inspect_fw_phexexp("Hardware Revision",
803 ntohl(hdr->hw_rev), board->hw_rev);
804 } else {
805 inspect_fw_phexpost("Hardware ID",
806 ntohl(hdr->hw_id), "unknown");
807 inspect_fw_phex("Hardware Revision",
808 ntohl(hdr->hw_rev));
809 }
810
811 printf("\n");
812
813 inspect_fw_phexdec("Kernel data offset",
814 ntohl(hdr->kernel_ofs));
815 inspect_fw_phexdec("Kernel data length",
816 ntohl(hdr->kernel_len));
817 if (board) {
818 inspect_fw_phexdef("Kernel load address",
819 ntohl(hdr->kernel_la),
820 layout ? layout->kernel_la : 0xffffffff);
821 inspect_fw_phexdef("Kernel entry point",
822 ntohl(hdr->kernel_ep),
823 layout ? layout->kernel_ep : 0xffffffff);
824 inspect_fw_phexdecdef("Rootfs data offset",
825 ntohl(hdr->rootfs_ofs),
826 layout ? layout->rootfs_ofs : 0xffffffff);
827 } else {
828 inspect_fw_phex("Kernel load address",
829 ntohl(hdr->kernel_la));
830 inspect_fw_phex("Kernel entry point",
831 ntohl(hdr->kernel_ep));
832 inspect_fw_phexdec("Rootfs data offset",
833 ntohl(hdr->rootfs_ofs));
834 }
835 inspect_fw_phexdec("Rootfs data length",
836 ntohl(hdr->rootfs_len));
837 inspect_fw_phexdec("Boot loader data offset",
838 ntohl(hdr->boot_ofs));
839 inspect_fw_phexdec("Boot loader data length",
840 ntohl(hdr->boot_len));
841 inspect_fw_phexdec("Total firmware length",
842 ntohl(hdr->fw_length));
843
844 if (extract) {
845 FILE *fp;
846 char *filename;
847
848 printf("\n");
849
850 filename = malloc(strlen(inspect_info.file_name) + 8);
851 sprintf(filename, "%s-kernel", inspect_info.file_name);
852 printf("Extracting kernel to \"%s\"...\n", filename);
853 fp = fopen(filename, "w");
854 if (fp) {
855 if (!fwrite(buf + ntohl(hdr->kernel_ofs),
856 ntohl(hdr->kernel_len), 1, fp)) {
857 ERR("error in fwrite(): %s", strerror(errno));
858 }
859 fclose(fp);
860 } else {
861 ERR("error in fopen(): %s", strerror(errno));
862 }
863 free(filename);
864
865 filename = malloc(strlen(inspect_info.file_name) + 8);
866 sprintf(filename, "%s-rootfs", inspect_info.file_name);
867 printf("Extracting rootfs to \"%s\"...\n", filename);
868 fp = fopen(filename, "w");
869 if (fp) {
870 if (!fwrite(buf + ntohl(hdr->rootfs_ofs),
871 ntohl(hdr->rootfs_len), 1, fp)) {
872 ERR("error in fwrite(): %s", strerror(errno));
873 }
874 fclose(fp);
875 } else {
876 ERR("error in fopen(): %s", strerror(errno));
877 }
878 free(filename);
879 }
880
881 out_free_buf:
882 free(buf);
883 out:
884 return ret;
885 }
886
887 int main(int argc, char *argv[])
888 {
889 int ret = EXIT_FAILURE;
890 int err;
891
892 FILE *outfile;
893
894 progname = basename(argv[0]);
895
896 while ( 1 ) {
897 int c;
898
899 c = getopt(argc, argv, "a:B:H:E:F:L:V:N:W:ci:k:r:R:o:xhsj");
900 if (c == -1)
901 break;
902
903 switch (c) {
904 case 'a':
905 sscanf(optarg, "0x%x", &rootfs_align);
906 break;
907 case 'B':
908 board_id = optarg;
909 break;
910 case 'H':
911 opt_hw_id = optarg;
912 break;
913 case 'E':
914 sscanf(optarg, "0x%x", &kernel_ep);
915 break;
916 case 'F':
917 layout_id = optarg;
918 break;
919 case 'W':
920 opt_hw_rev = optarg;
921 break;
922 case 'L':
923 sscanf(optarg, "0x%x", &kernel_la);
924 break;
925 case 'V':
926 version = optarg;
927 break;
928 case 'N':
929 vendor = optarg;
930 break;
931 case 'c':
932 combined++;
933 break;
934 case 'k':
935 kernel_info.file_name = optarg;
936 break;
937 case 'r':
938 rootfs_info.file_name = optarg;
939 break;
940 case 'R':
941 sscanf(optarg, "0x%x", &rootfs_ofs);
942 break;
943 case 'o':
944 ofname = optarg;
945 break;
946 case 's':
947 strip_padding = 1;
948 break;
949 case 'i':
950 inspect_info.file_name = optarg;
951 break;
952 case 'j':
953 add_jffs2_eof = 1;
954 break;
955 case 'x':
956 extract = 1;
957 break;
958 case 'h':
959 usage(EXIT_SUCCESS);
960 break;
961 default:
962 usage(EXIT_FAILURE);
963 break;
964 }
965 }
966
967 ret = check_options();
968 if (ret)
969 goto out;
970
971 if (!inspect_info.file_name)
972 ret = build_fw();
973 else
974 ret = inspect_fw();
975
976 out:
977 return ret;
978 }
979
Personal OpenWRT clone
This page took 0.081302 seconds and 5 git commands to generate.