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firmware-utils/mktplinkfw: add support for the TL-WA830RE v1/v2 boards
[openwrt/staging/lynxis/omap.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_MR3020_V1 0x30200001
34 #define HWID_TL_MR3220_V1 0x32200001
35 #define HWID_TL_MR3220_V2 0x32200002
36 #define HWID_TL_MR3420_V1 0x34200001
37 #define HWID_TL_WA701N_V1 0x07010001
38 #define HWID_TL_WA7510N_V1 0x75100001
39 #define HWID_TL_WA801ND_V1 0x08010001
40 #define HWID_TL_WA830RE_V1 0x08300010
41 #define HWID_TL_WA830RE_V2 0x08300002
42 #define HWID_TL_WA901ND_V1 0x09010001
43 #define HWID_TL_WA901ND_V2 0x09010002
44 #define HWID_TL_WDR4900_V1 0x49000001
45 #define HWID_TL_WR703N_V1 0x07030101
46 #define HWID_TL_WR741ND_V1 0x07410001
47 #define HWID_TL_WR741ND_V4 0x07410004
48 #define HWID_TL_WR740N_V1 0x07400001
49 #define HWID_TL_WR740N_V3 0x07400003
50 #define HWID_TL_WR743ND_V1 0x07430001
51 #define HWID_TL_WR743ND_V2 0x07430002
52 #define HWID_TL_WR841N_V1_5 0x08410002
53 #define HWID_TL_WR841ND_V3 0x08410003
54 #define HWID_TL_WR841ND_V5 0x08410005
55 #define HWID_TL_WR841ND_V7 0x08410007
56 #define HWID_TL_WR941ND_V2 0x09410002
57 #define HWID_TL_WR941ND_V4 0x09410004
58 #define HWID_TL_WR1043ND_V1 0x10430001
59 #define HWID_TL_WR1041N_V2 0x10410002
60 #define HWID_TL_WR2543N_V1 0x25430001
61
62 #define MD5SUM_LEN 16
63
64 struct file_info {
65 char *file_name; /* name of the file */
66 uint32_t file_size; /* length of the file */
67 };
68
69 struct fw_header {
70 uint32_t version; /* header version */
71 char vendor_name[24];
72 char fw_version[36];
73 uint32_t hw_id; /* hardware id */
74 uint32_t hw_rev; /* hardware revision */
75 uint32_t unk1;
76 uint8_t md5sum1[MD5SUM_LEN];
77 uint32_t unk2;
78 uint8_t md5sum2[MD5SUM_LEN];
79 uint32_t unk3;
80 uint32_t kernel_la; /* kernel load address */
81 uint32_t kernel_ep; /* kernel entry point */
82 uint32_t fw_length; /* total length of the firmware */
83 uint32_t kernel_ofs; /* kernel data offset */
84 uint32_t kernel_len; /* kernel data length */
85 uint32_t rootfs_ofs; /* rootfs data offset */
86 uint32_t rootfs_len; /* rootfs data length */
87 uint32_t boot_ofs; /* bootloader data offset */
88 uint32_t boot_len; /* bootloader data length */
89 uint16_t ver_hi;
90 uint16_t ver_mid;
91 uint16_t ver_lo;
92 uint8_t pad[354];
93 } __attribute__ ((packed));
94
95 struct flash_layout {
96 char *id;
97 uint32_t fw_max_len;
98 uint32_t kernel_la;
99 uint32_t kernel_ep;
100 uint32_t rootfs_ofs;
101 };
102
103 struct board_info {
104 char *id;
105 uint32_t hw_id;
106 uint32_t hw_rev;
107 char *layout_id;
108 };
109
110 /*
111 * Globals
112 */
113 static char *ofname;
114 static char *progname;
115 static char *vendor = "TP-LINK Technologies";
116 static char *version = "ver. 1.0";
117 static char *fw_ver = "0.0.0";
118
119 static char *board_id;
120 static struct board_info *board;
121 static char *layout_id;
122 static struct flash_layout *layout;
123 static char *opt_hw_id;
124 static uint32_t hw_id;
125 static char *opt_hw_rev;
126 static uint32_t hw_rev;
127 static int fw_ver_lo;
128 static int fw_ver_mid;
129 static int fw_ver_hi;
130 static struct file_info kernel_info;
131 static uint32_t kernel_la = 0;
132 static uint32_t kernel_ep = 0;
133 static uint32_t kernel_len = 0;
134 static struct file_info rootfs_info;
135 static uint32_t rootfs_ofs = 0;
136 static uint32_t rootfs_align;
137 static struct file_info boot_info;
138 static int combined;
139 static int strip_padding;
140 static int add_jffs2_eof;
141 static unsigned char jffs2_eof_mark[4] = {0xde, 0xad, 0xc0, 0xde};
142
143 static struct file_info inspect_info;
144 static int extract = 0;
145
146 char md5salt_normal[MD5SUM_LEN] = {
147 0xdc, 0xd7, 0x3a, 0xa5, 0xc3, 0x95, 0x98, 0xfb,
148 0xdd, 0xf9, 0xe7, 0xf4, 0x0e, 0xae, 0x47, 0x38,
149 };
150
151 char md5salt_boot[MD5SUM_LEN] = {
152 0x8c, 0xef, 0x33, 0x5b, 0xd5, 0xc5, 0xce, 0xfa,
153 0xa7, 0x9c, 0x28, 0xda, 0xb2, 0xe9, 0x0f, 0x42,
154 };
155
156 static struct flash_layout layouts[] = {
157 {
158 .id = "4M",
159 .fw_max_len = 0x3c0000,
160 .kernel_la = 0x80060000,
161 .kernel_ep = 0x80060000,
162 .rootfs_ofs = 0x140000,
163 }, {
164 .id = "4Mlzma",
165 .fw_max_len = 0x3c0000,
166 .kernel_la = 0x80060000,
167 .kernel_ep = 0x80060000,
168 .rootfs_ofs = 0x100000,
169 }, {
170 .id = "8M",
171 .fw_max_len = 0x7c0000,
172 .kernel_la = 0x80060000,
173 .kernel_ep = 0x80060000,
174 .rootfs_ofs = 0x140000,
175 }, {
176 .id = "8Mlzma",
177 .fw_max_len = 0x7c0000,
178 .kernel_la = 0x80060000,
179 .kernel_ep = 0x80060000,
180 .rootfs_ofs = 0x100000,
181 }, {
182 .id = "16Mppc",
183 .fw_max_len = 0xf80000,
184 .kernel_la = 0x00000000,
185 .kernel_ep = 0xc0000000,
186 .rootfs_ofs = 0x2a0000,
187 }, {
188 /* terminating entry */
189 }
190 };
191
192 static struct board_info boards[] = {
193 {
194 .id = "TL-MR3020v1",
195 .hw_id = HWID_TL_MR3020_V1,
196 .hw_rev = 1,
197 .layout_id = "4Mlzma",
198 }, {
199 .id = "TL-MR3220v1",
200 .hw_id = HWID_TL_MR3220_V1,
201 .hw_rev = 1,
202 .layout_id = "4M",
203 }, {
204 .id = "TL-MR3220v2",
205 .hw_id = HWID_TL_MR3220_V2,
206 .hw_rev = 1,
207 .layout_id = "4Mlzma",
208 }, {
209 .id = "TL-MR3420v1",
210 .hw_id = HWID_TL_MR3420_V1,
211 .hw_rev = 1,
212 .layout_id = "4M",
213 }, {
214 .id = "TL-WA701Nv1",
215 .hw_id = HWID_TL_WA701N_V1,
216 .hw_rev = 1,
217 .layout_id = "4M",
218 }, {
219 .id = "TL-WA7510N",
220 .hw_id = HWID_TL_WA7510N_V1,
221 .hw_rev = 1,
222 .layout_id = "4M",
223 }, {
224 .id = "TL-WA801NDv1",
225 .hw_id = HWID_TL_WA801ND_V1,
226 .hw_rev = 1,
227 .layout_id = "4M",
228 }, {
229 .id = "TL-WA830REv1",
230 .hw_id = HWID_TL_WA830RE_V1,
231 .hw_rev = 1,
232 .layout_id = "4M",
233 }, {
234 .id = "TL-WA830REv2",
235 .hw_id = HWID_TL_WA830RE_V2,
236 .hw_rev = 1,
237 .layout_id = "4M",
238 }, {
239 .id = "TL-WA901NDv1",
240 .hw_id = HWID_TL_WA901ND_V1,
241 .hw_rev = 1,
242 .layout_id = "4M",
243 }, {
244 .id = "TL-WA901NDv2",
245 .hw_id = HWID_TL_WA901ND_V2,
246 .hw_rev = 1,
247 .layout_id = "4M",
248 }, {
249 .id = "TL-WDR4900v1",
250 .hw_id = HWID_TL_WDR4900_V1,
251 .hw_rev = 1,
252 .layout_id = "16Mppc",
253 }, {
254 .id = "TL-WR741NDv1",
255 .hw_id = HWID_TL_WR741ND_V1,
256 .hw_rev = 1,
257 .layout_id = "4M",
258 }, {
259 .id = "TL-WR741NDv4",
260 .hw_id = HWID_TL_WR741ND_V4,
261 .hw_rev = 1,
262 .layout_id = "4Mlzma",
263 }, {
264 .id = "TL-WR740Nv1",
265 .hw_id = HWID_TL_WR740N_V1,
266 .hw_rev = 1,
267 .layout_id = "4M",
268 }, {
269 .id = "TL-WR740Nv3",
270 .hw_id = HWID_TL_WR740N_V3,
271 .hw_rev = 1,
272 .layout_id = "4M",
273 }, {
274 .id = "TL-WR743NDv1",
275 .hw_id = HWID_TL_WR743ND_V1,
276 .hw_rev = 1,
277 .layout_id = "4M",
278 }, {
279 .id = "TL-WR743NDv2",
280 .hw_id = HWID_TL_WR743ND_V2,
281 .hw_rev = 1,
282 .layout_id = "4Mlzma",
283 }, {
284 .id = "TL-WR841Nv1.5",
285 .hw_id = HWID_TL_WR841N_V1_5,
286 .hw_rev = 2,
287 .layout_id = "4M",
288 }, {
289 .id = "TL-WR841NDv3",
290 .hw_id = HWID_TL_WR841ND_V3,
291 .hw_rev = 3,
292 .layout_id = "4M",
293 }, {
294 .id = "TL-WR841NDv5",
295 .hw_id = HWID_TL_WR841ND_V5,
296 .hw_rev = 1,
297 .layout_id = "4M",
298 }, {
299 .id = "TL-WR841NDv7",
300 .hw_id = HWID_TL_WR841ND_V7,
301 .hw_rev = 1,
302 .layout_id = "4M",
303 }, {
304 .id = "TL-WR941NDv2",
305 .hw_id = HWID_TL_WR941ND_V2,
306 .hw_rev = 2,
307 .layout_id = "4M",
308 }, {
309 .id = "TL-WR941NDv4",
310 .hw_id = HWID_TL_WR941ND_V4,
311 .hw_rev = 1,
312 .layout_id = "4M",
313 }, {
314 .id = "TL-WR1041Nv2",
315 .hw_id = HWID_TL_WR1041N_V2,
316 .hw_rev = 1,
317 .layout_id = "4Mlzma",
318 }, {
319 .id = "TL-WR1043NDv1",
320 .hw_id = HWID_TL_WR1043ND_V1,
321 .hw_rev = 1,
322 .layout_id = "8M",
323 }, {
324 .id = "TL-WR2543Nv1",
325 .hw_id = HWID_TL_WR2543N_V1,
326 .hw_rev = 1,
327 .layout_id = "8Mlzma",
328 }, {
329 .id = "TL-WR703Nv1",
330 .hw_id = HWID_TL_WR703N_V1,
331 .hw_rev = 1,
332 .layout_id = "4Mlzma",
333 }, {
334 /* terminating entry */
335 }
336 };
337
338 /*
339 * Message macros
340 */
341 #define ERR(fmt, ...) do { \
342 fflush(0); \
343 fprintf(stderr, "[%s] *** error: " fmt "\n", \
344 progname, ## __VA_ARGS__ ); \
345 } while (0)
346
347 #define ERRS(fmt, ...) do { \
348 int save = errno; \
349 fflush(0); \
350 fprintf(stderr, "[%s] *** error: " fmt "\n", \
351 progname, ## __VA_ARGS__, strerror(save)); \
352 } while (0)
353
354 #define DBG(fmt, ...) do { \
355 fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
356 } while (0)
357
358 static struct board_info *find_board(char *id)
359 {
360 struct board_info *ret;
361 struct board_info *board;
362
363 ret = NULL;
364 for (board = boards; board->id != NULL; board++){
365 if (strcasecmp(id, board->id) == 0) {
366 ret = board;
367 break;
368 }
369 };
370
371 return ret;
372 }
373
374 static struct board_info *find_board_by_hwid(uint32_t hw_id)
375 {
376 struct board_info *board;
377
378 for (board = boards; board->id != NULL; board++) {
379 if (hw_id == board->hw_id)
380 return board;
381 };
382
383 return NULL;
384 }
385
386 static struct flash_layout *find_layout(char *id)
387 {
388 struct flash_layout *ret;
389 struct flash_layout *l;
390
391 ret = NULL;
392 for (l = layouts; l->id != NULL; l++){
393 if (strcasecmp(id, l->id) == 0) {
394 ret = l;
395 break;
396 }
397 };
398
399 return ret;
400 }
401
402 static void usage(int status)
403 {
404 FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
405 struct board_info *board;
406
407 fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
408 fprintf(stream,
409 "\n"
410 "Options:\n"
411 " -B <board> create image for the board specified with <board>\n"
412 " -c use combined kernel image\n"
413 " -E <ep> overwrite kernel entry point with <ep> (hexval prefixed with 0x)\n"
414 " -L <la> overwrite kernel load address with <la> (hexval prefixed with 0x)\n"
415 " -H <hwid> use hardware id specified with <hwid>\n"
416 " -F <id> use flash layout specified with <id>\n"
417 " -k <file> read kernel image from the file <file>\n"
418 " -r <file> read rootfs image from the file <file>\n"
419 " -a <align> align the rootfs start on an <align> bytes boundary\n"
420 " -R <offset> overwrite rootfs offset with <offset> (hexval prefixed with 0x)\n"
421 " -o <file> write output to the file <file>\n"
422 " -s strip padding from the end of the image\n"
423 " -j add jffs2 end-of-filesystem markers\n"
424 " -N <vendor> set image vendor to <vendor>\n"
425 " -V <version> set image version to <version>\n"
426 " -v <version> set firmware version to <version>\n"
427 " -i <file> inspect given firmware file <file>\n"
428 " -x extract kernel and rootfs while inspecting (requires -i)\n"
429 " -h show this screen\n"
430 );
431
432 exit(status);
433 }
434
435 static int get_md5(char *data, int size, char *md5)
436 {
437 MD5_CTX ctx;
438
439 MD5_Init(&ctx);
440 MD5_Update(&ctx, data, size);
441 MD5_Final(md5, &ctx);
442 }
443
444 static int get_file_stat(struct file_info *fdata)
445 {
446 struct stat st;
447 int res;
448
449 if (fdata->file_name == NULL)
450 return 0;
451
452 res = stat(fdata->file_name, &st);
453 if (res){
454 ERRS("stat failed on %s", fdata->file_name);
455 return res;
456 }
457
458 fdata->file_size = st.st_size;
459 return 0;
460 }
461
462 static int read_to_buf(struct file_info *fdata, char *buf)
463 {
464 FILE *f;
465 int ret = EXIT_FAILURE;
466
467 f = fopen(fdata->file_name, "r");
468 if (f == NULL) {
469 ERRS("could not open \"%s\" for reading", fdata->file_name);
470 goto out;
471 }
472
473 errno = 0;
474 fread(buf, fdata->file_size, 1, f);
475 if (errno != 0) {
476 ERRS("unable to read from file \"%s\"", fdata->file_name);
477 goto out_close;
478 }
479
480 ret = EXIT_SUCCESS;
481
482 out_close:
483 fclose(f);
484 out:
485 return ret;
486 }
487
488 static int check_options(void)
489 {
490 int ret;
491
492 if (inspect_info.file_name) {
493 ret = get_file_stat(&inspect_info);
494 if (ret)
495 return ret;
496
497 return 0;
498 } else if (extract) {
499 ERR("no firmware for inspection specified");
500 return -1;
501 }
502
503 if (board_id == NULL && opt_hw_id == NULL) {
504 ERR("either board or hardware id must be specified");
505 return -1;
506 }
507
508 if (board_id) {
509 board = find_board(board_id);
510 if (board == NULL) {
511 ERR("unknown/unsupported board id \"%s\"", board_id);
512 return -1;
513 }
514 if (layout_id == NULL)
515 layout_id = board->layout_id;
516
517 hw_id = board->hw_id;
518 hw_rev = board->hw_rev;
519 } else {
520 if (layout_id == NULL) {
521 ERR("flash layout is not specified");
522 return -1;
523 }
524 hw_id = strtoul(opt_hw_id, NULL, 0);
525
526 if (opt_hw_rev)
527 hw_rev = strtoul(opt_hw_rev, NULL, 0);
528 else
529 hw_rev = 1;
530 }
531
532 layout = find_layout(layout_id);
533 if (layout == NULL) {
534 ERR("unknown flash layout \"%s\"", layout_id);
535 return -1;
536 }
537
538 if (!kernel_la)
539 kernel_la = layout->kernel_la;
540 if (!kernel_ep)
541 kernel_ep = layout->kernel_ep;
542 if (!rootfs_ofs)
543 rootfs_ofs = layout->rootfs_ofs;
544
545 if (kernel_info.file_name == NULL) {
546 ERR("no kernel image specified");
547 return -1;
548 }
549
550 ret = get_file_stat(&kernel_info);
551 if (ret)
552 return ret;
553
554 kernel_len = kernel_info.file_size;
555
556 if (combined) {
557 if (kernel_info.file_size >
558 layout->fw_max_len - sizeof(struct fw_header)) {
559 ERR("kernel image is too big");
560 return -1;
561 }
562 } else {
563 if (rootfs_info.file_name == NULL) {
564 ERR("no rootfs image specified");
565 return -1;
566 }
567
568 ret = get_file_stat(&rootfs_info);
569 if (ret)
570 return ret;
571
572 if (rootfs_align) {
573 kernel_len += sizeof(struct fw_header);
574 kernel_len = ALIGN(kernel_len, rootfs_align);
575 kernel_len -= sizeof(struct fw_header);
576
577 DBG("kernel length aligned to %u", kernel_len);
578
579 if (kernel_len + rootfs_info.file_size >
580 layout->fw_max_len - sizeof(struct fw_header)) {
581 ERR("images are too big");
582 return -1;
583 }
584 } else {
585 if (kernel_info.file_size >
586 rootfs_ofs - sizeof(struct fw_header)) {
587 ERR("kernel image is too big");
588 return -1;
589 }
590
591 if (rootfs_info.file_size >
592 (layout->fw_max_len - rootfs_ofs)) {
593 ERR("rootfs image is too big");
594 return -1;
595 }
596 }
597 }
598
599 if (ofname == NULL) {
600 ERR("no output file specified");
601 return -1;
602 }
603
604 ret = sscanf(fw_ver, "%d.%d.%d", &fw_ver_hi, &fw_ver_mid, &fw_ver_lo);
605 if (ret != 3) {
606 ERR("invalid firmware version '%s'", fw_ver);
607 return -1;
608 }
609
610 return 0;
611 }
612
613 static void fill_header(char *buf, int len)
614 {
615 struct fw_header *hdr = (struct fw_header *)buf;
616
617 memset(hdr, 0, sizeof(struct fw_header));
618
619 hdr->version = htonl(HEADER_VERSION_V1);
620 strncpy(hdr->vendor_name, vendor, sizeof(hdr->vendor_name));
621 strncpy(hdr->fw_version, version, sizeof(hdr->fw_version));
622 hdr->hw_id = htonl(hw_id);
623 hdr->hw_rev = htonl(hw_rev);
624
625 if (boot_info.file_size == 0)
626 memcpy(hdr->md5sum1, md5salt_normal, sizeof(hdr->md5sum1));
627 else
628 memcpy(hdr->md5sum1, md5salt_boot, sizeof(hdr->md5sum1));
629
630 hdr->kernel_la = htonl(kernel_la);
631 hdr->kernel_ep = htonl(kernel_ep);
632 hdr->fw_length = htonl(layout->fw_max_len);
633 hdr->kernel_ofs = htonl(sizeof(struct fw_header));
634 hdr->kernel_len = htonl(kernel_len);
635 if (!combined) {
636 hdr->rootfs_ofs = htonl(rootfs_ofs);
637 hdr->rootfs_len = htonl(rootfs_info.file_size);
638 }
639
640 hdr->ver_hi = htons(fw_ver_hi);
641 hdr->ver_mid = htons(fw_ver_mid);
642 hdr->ver_lo = htons(fw_ver_lo);
643
644 get_md5(buf, len, hdr->md5sum1);
645 }
646
647 static int pad_jffs2(char *buf, int currlen)
648 {
649 int len;
650 uint32_t pad_mask;
651
652 len = currlen;
653 pad_mask = (64 * 1024);
654 while ((len < layout->fw_max_len) && (pad_mask != 0)) {
655 uint32_t mask;
656 int i;
657
658 for (i = 10; i < 32; i++) {
659 mask = 1 << i;
660 if (pad_mask & mask)
661 break;
662 }
663
664 len = ALIGN(len, mask);
665
666 for (i = 10; i < 32; i++) {
667 mask = 1 << i;
668 if ((len & (mask - 1)) == 0)
669 pad_mask &= ~mask;
670 }
671
672 for (i = 0; i < sizeof(jffs2_eof_mark); i++)
673 buf[len + i] = jffs2_eof_mark[i];
674
675 len += sizeof(jffs2_eof_mark);
676 }
677
678 return len;
679 }
680
681 static int write_fw(char *data, int len)
682 {
683 FILE *f;
684 int ret = EXIT_FAILURE;
685
686 f = fopen(ofname, "w");
687 if (f == NULL) {
688 ERRS("could not open \"%s\" for writing", ofname);
689 goto out;
690 }
691
692 errno = 0;
693 fwrite(data, len, 1, f);
694 if (errno) {
695 ERRS("unable to write output file");
696 goto out_flush;
697 }
698
699 DBG("firmware file \"%s\" completed", ofname);
700
701 ret = EXIT_SUCCESS;
702
703 out_flush:
704 fflush(f);
705 fclose(f);
706 if (ret != EXIT_SUCCESS) {
707 unlink(ofname);
708 }
709 out:
710 return ret;
711 }
712
713 static int build_fw(void)
714 {
715 int buflen;
716 char *buf;
717 char *p;
718 int ret = EXIT_FAILURE;
719 int writelen = 0;
720
721 buflen = layout->fw_max_len;
722
723 buf = malloc(buflen);
724 if (!buf) {
725 ERR("no memory for buffer\n");
726 goto out;
727 }
728
729 memset(buf, 0xff, buflen);
730 p = buf + sizeof(struct fw_header);
731 ret = read_to_buf(&kernel_info, p);
732 if (ret)
733 goto out_free_buf;
734
735 writelen = sizeof(struct fw_header) + kernel_len;
736
737 if (!combined) {
738 if (rootfs_align)
739 p = buf + writelen;
740 else
741 p = buf + rootfs_ofs;
742
743 ret = read_to_buf(&rootfs_info, p);
744 if (ret)
745 goto out_free_buf;
746
747 if (rootfs_align)
748 writelen += rootfs_info.file_size;
749 else
750 writelen = rootfs_ofs + rootfs_info.file_size;
751
752 if (add_jffs2_eof)
753 writelen = pad_jffs2(buf, writelen);
754 }
755
756 if (!strip_padding)
757 writelen = buflen;
758
759 fill_header(buf, writelen);
760 ret = write_fw(buf, writelen);
761 if (ret)
762 goto out_free_buf;
763
764 ret = EXIT_SUCCESS;
765
766 out_free_buf:
767 free(buf);
768 out:
769 return ret;
770 }
771
772 /* Helper functions to inspect_fw() representing different output formats */
773 static inline void inspect_fw_pstr(char *label, char *str)
774 {
775 printf("%-23s: %s\n", label, str);
776 }
777
778 static inline void inspect_fw_phex(char *label, uint32_t val)
779 {
780 printf("%-23s: 0x%08x\n", label, val);
781 }
782
783 static inline void inspect_fw_phexpost(char *label,
784 uint32_t val, char *post)
785 {
786 printf("%-23s: 0x%08x (%s)\n", label, val, post);
787 }
788
789 static inline void inspect_fw_phexdef(char *label,
790 uint32_t val, uint32_t defval)
791 {
792 printf("%-23s: 0x%08x ", label, val);
793
794 if (val == defval)
795 printf("(== OpenWrt default)\n");
796 else
797 printf("(OpenWrt default: 0x%08x)\n", defval);
798 }
799
800 static inline void inspect_fw_phexexp(char *label,
801 uint32_t val, uint32_t expval)
802 {
803 printf("%-23s: 0x%08x ", label, val);
804
805 if (val == expval)
806 printf("(ok)\n");
807 else
808 printf("(expected: 0x%08x)\n", expval);
809 }
810
811 static inline void inspect_fw_phexdec(char *label, uint32_t val)
812 {
813 printf("%-23s: 0x%08x / %8u bytes\n", label, val, val);
814 }
815
816 static inline void inspect_fw_phexdecdef(char *label,
817 uint32_t val, uint32_t defval)
818 {
819 printf("%-23s: 0x%08x / %8u bytes ", label, val, val);
820
821 if (val == defval)
822 printf("(== OpenWrt default)\n");
823 else
824 printf("(OpenWrt default: 0x%08x)\n", defval);
825 }
826
827 static inline void inspect_fw_pmd5sum(char *label, uint8_t *val, char *text)
828 {
829 int i;
830
831 printf("%-23s:", label);
832 for (i=0; i<MD5SUM_LEN; i++)
833 printf(" %02x", val[i]);
834 printf(" %s\n", text);
835 }
836
837 static int inspect_fw(void)
838 {
839 char *buf;
840 struct fw_header *hdr;
841 uint8_t md5sum[MD5SUM_LEN];
842 struct board_info *board;
843 int ret = EXIT_FAILURE;
844
845 buf = malloc(inspect_info.file_size);
846 if (!buf) {
847 ERR("no memory for buffer!\n");
848 goto out;
849 }
850
851 ret = read_to_buf(&inspect_info, buf);
852 if (ret)
853 goto out_free_buf;
854 hdr = (struct fw_header *)buf;
855
856 inspect_fw_pstr("File name", inspect_info.file_name);
857 inspect_fw_phexdec("File size", inspect_info.file_size);
858
859 if (ntohl(hdr->version) != HEADER_VERSION_V1) {
860 ERR("file does not seem to have V1 header!\n");
861 goto out_free_buf;
862 }
863
864 inspect_fw_phexdec("Version 1 Header size", sizeof(struct fw_header));
865
866 if (ntohl(hdr->unk1) != 0)
867 inspect_fw_phexdec("Unknown value 1", hdr->unk1);
868
869 memcpy(md5sum, hdr->md5sum1, sizeof(md5sum));
870 if (ntohl(hdr->boot_len) == 0)
871 memcpy(hdr->md5sum1, md5salt_normal, sizeof(md5sum));
872 else
873 memcpy(hdr->md5sum1, md5salt_boot, sizeof(md5sum));
874 get_md5(buf, inspect_info.file_size, hdr->md5sum1);
875
876 if (memcmp(md5sum, hdr->md5sum1, sizeof(md5sum))) {
877 inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(*ERROR*)");
878 inspect_fw_pmd5sum(" --> expected", hdr->md5sum1, "");
879 } else {
880 inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(ok)");
881 }
882 if (ntohl(hdr->unk2) != 0)
883 inspect_fw_phexdec("Unknown value 2", hdr->unk2);
884 inspect_fw_pmd5sum("Header MD5Sum2", hdr->md5sum2,
885 "(purpose yet unknown, unchecked here)");
886 if (ntohl(hdr->unk3) != 0)
887 inspect_fw_phexdec("Unknown value 3", hdr->unk3);
888
889 printf("\n");
890
891 inspect_fw_pstr("Vendor name", hdr->vendor_name);
892 inspect_fw_pstr("Firmware version", hdr->fw_version);
893 board = find_board_by_hwid(ntohl(hdr->hw_id));
894 if (board) {
895 layout = find_layout(board->layout_id);
896 inspect_fw_phexpost("Hardware ID",
897 ntohl(hdr->hw_id), board->id);
898 inspect_fw_phexexp("Hardware Revision",
899 ntohl(hdr->hw_rev), board->hw_rev);
900 } else {
901 inspect_fw_phexpost("Hardware ID",
902 ntohl(hdr->hw_id), "unknown");
903 inspect_fw_phex("Hardware Revision",
904 ntohl(hdr->hw_rev));
905 }
906
907 printf("\n");
908
909 inspect_fw_phexdec("Kernel data offset",
910 ntohl(hdr->kernel_ofs));
911 inspect_fw_phexdec("Kernel data length",
912 ntohl(hdr->kernel_len));
913 if (board) {
914 inspect_fw_phexdef("Kernel load address",
915 ntohl(hdr->kernel_la),
916 layout ? layout->kernel_la : 0xffffffff);
917 inspect_fw_phexdef("Kernel entry point",
918 ntohl(hdr->kernel_ep),
919 layout ? layout->kernel_ep : 0xffffffff);
920 inspect_fw_phexdecdef("Rootfs data offset",
921 ntohl(hdr->rootfs_ofs),
922 layout ? layout->rootfs_ofs : 0xffffffff);
923 } else {
924 inspect_fw_phex("Kernel load address",
925 ntohl(hdr->kernel_la));
926 inspect_fw_phex("Kernel entry point",
927 ntohl(hdr->kernel_ep));
928 inspect_fw_phexdec("Rootfs data offset",
929 ntohl(hdr->rootfs_ofs));
930 }
931 inspect_fw_phexdec("Rootfs data length",
932 ntohl(hdr->rootfs_len));
933 inspect_fw_phexdec("Boot loader data offset",
934 ntohl(hdr->boot_ofs));
935 inspect_fw_phexdec("Boot loader data length",
936 ntohl(hdr->boot_len));
937 inspect_fw_phexdec("Total firmware length",
938 ntohl(hdr->fw_length));
939
940 if (extract) {
941 FILE *fp;
942 char *filename;
943
944 printf("\n");
945
946 filename = malloc(strlen(inspect_info.file_name) + 8);
947 sprintf(filename, "%s-kernel", inspect_info.file_name);
948 printf("Extracting kernel to \"%s\"...\n", filename);
949 fp = fopen(filename, "w");
950 if (fp) {
951 if (!fwrite(buf + ntohl(hdr->kernel_ofs),
952 ntohl(hdr->kernel_len), 1, fp)) {
953 ERR("error in fwrite(): %s", strerror(errno));
954 }
955 fclose(fp);
956 } else {
957 ERR("error in fopen(): %s", strerror(errno));
958 }
959 free(filename);
960
961 filename = malloc(strlen(inspect_info.file_name) + 8);
962 sprintf(filename, "%s-rootfs", inspect_info.file_name);
963 printf("Extracting rootfs to \"%s\"...\n", filename);
964 fp = fopen(filename, "w");
965 if (fp) {
966 if (!fwrite(buf + ntohl(hdr->rootfs_ofs),
967 ntohl(hdr->rootfs_len), 1, fp)) {
968 ERR("error in fwrite(): %s", strerror(errno));
969 }
970 fclose(fp);
971 } else {
972 ERR("error in fopen(): %s", strerror(errno));
973 }
974 free(filename);
975 }
976
977 out_free_buf:
978 free(buf);
979 out:
980 return ret;
981 }
982
983 int main(int argc, char *argv[])
984 {
985 int ret = EXIT_FAILURE;
986 int err;
987
988 FILE *outfile;
989
990 progname = basename(argv[0]);
991
992 while ( 1 ) {
993 int c;
994
995 c = getopt(argc, argv, "a:B:H:E:F:L:V:N:W:ci:k:r:R:o:xhsjv:");
996 if (c == -1)
997 break;
998
999 switch (c) {
1000 case 'a':
1001 sscanf(optarg, "0x%x", &rootfs_align);
1002 break;
1003 case 'B':
1004 board_id = optarg;
1005 break;
1006 case 'H':
1007 opt_hw_id = optarg;
1008 break;
1009 case 'E':
1010 sscanf(optarg, "0x%x", &kernel_ep);
1011 break;
1012 case 'F':
1013 layout_id = optarg;
1014 break;
1015 case 'W':
1016 opt_hw_rev = optarg;
1017 break;
1018 case 'L':
1019 sscanf(optarg, "0x%x", &kernel_la);
1020 break;
1021 case 'V':
1022 version = optarg;
1023 break;
1024 case 'v':
1025 fw_ver = optarg;
1026 break;
1027 case 'N':
1028 vendor = optarg;
1029 break;
1030 case 'c':
1031 combined++;
1032 break;
1033 case 'k':
1034 kernel_info.file_name = optarg;
1035 break;
1036 case 'r':
1037 rootfs_info.file_name = optarg;
1038 break;
1039 case 'R':
1040 sscanf(optarg, "0x%x", &rootfs_ofs);
1041 break;
1042 case 'o':
1043 ofname = optarg;
1044 break;
1045 case 's':
1046 strip_padding = 1;
1047 break;
1048 case 'i':
1049 inspect_info.file_name = optarg;
1050 break;
1051 case 'j':
1052 add_jffs2_eof = 1;
1053 break;
1054 case 'x':
1055 extract = 1;
1056 break;
1057 case 'h':
1058 usage(EXIT_SUCCESS);
1059 break;
1060 default:
1061 usage(EXIT_FAILURE);
1062 break;
1063 }
1064 }
1065
1066 ret = check_options();
1067 if (ret)
1068 goto out;
1069
1070 if (!inspect_info.file_name)
1071 ret = build_fw();
1072 else
1073 ret = inspect_fw();
1074
1075 out:
1076 return ret;
1077 }
1078
lynxis staging tree for omap