Root/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 "md5.h"
26
27#if (__BYTE_ORDER == __BIG_ENDIAN)
28# define HOST_TO_BE32(x) (x)
29# define BE32_TO_HOST(x) (x)
30#else
31# define HOST_TO_BE32(x) bswap_32(x)
32# define BE32_TO_HOST(x) bswap_32(x)
33#endif
34
35#define HEADER_VERSION_V1 0x01000000
36#define HWID_TL_MR3220_V1 0x32200001
37#define HWID_TL_MR3420_V1 0x34200001
38#define HWID_TL_WA901ND_V1 0x09010001
39#define HWID_TL_WA901ND_V2 0x09010002
40#define HWID_TL_WR703N_V1 0x07030101
41#define HWID_TL_WR741ND_V1 0x07410001
42#define HWID_TL_WR740N_V1 0x07400001
43#define HWID_TL_WR740N_V3 0x07400300
44#define HWID_TL_WR743ND_V1 0x07430001
45#define HWID_TL_WR841N_V1_5 0x08410002
46#define HWID_TL_WR841ND_V3 0x08410003
47#define HWID_TL_WR841ND_V5 0x08410005
48#define HWID_TL_WR841ND_V7 0x08410007
49#define HWID_TL_WR941ND_V2 0x09410002
50#define HWID_TL_WR941ND_V4 0x09410004
51#define HWID_TL_WR1043ND_V1 0x10430001
52
53#define MD5SUM_LEN 16
54
55struct file_info {
56    char *file_name; /* name of the file */
57    uint32_t file_size; /* length of the file */
58};
59
60struct fw_header {
61    uint32_t version; /* header version */
62    char vendor_name[24];
63    char fw_version[36];
64    uint32_t hw_id; /* hardware id */
65    uint32_t hw_rev; /* hardware revision */
66    uint32_t unk1;
67    uint8_t md5sum1[MD5SUM_LEN];
68    uint32_t unk2;
69    uint8_t md5sum2[MD5SUM_LEN];
70    uint32_t unk3;
71    uint32_t kernel_la; /* kernel load address */
72    uint32_t kernel_ep; /* kernel entry point */
73    uint32_t fw_length; /* total length of the firmware */
74    uint32_t kernel_ofs; /* kernel data offset */
75    uint32_t kernel_len; /* kernel data length */
76    uint32_t rootfs_ofs; /* rootfs data offset */
77    uint32_t rootfs_len; /* rootfs data length */
78    uint32_t boot_ofs; /* bootloader data offset */
79    uint32_t boot_len; /* bootloader data length */
80    uint8_t pad[360];
81} __attribute__ ((packed));
82
83struct board_info {
84    char *id;
85    uint32_t hw_id;
86    uint32_t hw_rev;
87    uint32_t fw_max_len;
88    uint32_t kernel_la;
89    uint32_t kernel_ep;
90    uint32_t rootfs_ofs;
91};
92
93/*
94 * Globals
95 */
96static char *ofname;
97static char *progname;
98static char *vendor = "TP-LINK Technologies";
99static char *version = "ver. 1.0";
100
101static char *board_id;
102static struct board_info *board;
103static struct file_info kernel_info;
104static uint32_t kernel_la = 0;
105static uint32_t kernel_ep = 0;
106static struct file_info rootfs_info;
107static uint32_t rootfs_ofs = 0;
108static struct file_info boot_info;
109static int combined;
110static int strip_padding;
111
112static struct file_info inspect_info;
113static int extract = 0;
114
115char md5salt_normal[MD5SUM_LEN] = {
116    0xdc, 0xd7, 0x3a, 0xa5, 0xc3, 0x95, 0x98, 0xfb,
117    0xdd, 0xf9, 0xe7, 0xf4, 0x0e, 0xae, 0x47, 0x38,
118};
119
120char md5salt_boot[MD5SUM_LEN] = {
121    0x8c, 0xef, 0x33, 0x5b, 0xd5, 0xc5, 0xce, 0xfa,
122    0xa7, 0x9c, 0x28, 0xda, 0xb2, 0xe9, 0x0f, 0x42,
123};
124
125static struct board_info boards[] = {
126    {
127        .id = "TL-MR3220v1",
128        .hw_id = HWID_TL_MR3220_V1,
129        .hw_rev = 1,
130        .fw_max_len = 0x3c0000,
131        .kernel_la = 0x80060000,
132        .kernel_ep = 0x80060000,
133        .rootfs_ofs = 0x140000,
134    }, {
135        .id = "TL-MR3420v1",
136        .hw_id = HWID_TL_MR3420_V1,
137        .hw_rev = 1,
138        .fw_max_len = 0x3c0000,
139        .kernel_la = 0x80060000,
140        .kernel_ep = 0x80060000,
141        .rootfs_ofs = 0x140000,
142    }, {
143        .id = "TL-WA901NDv1",
144        .hw_id = HWID_TL_WA901ND_V1,
145        .hw_rev = 1,
146        .fw_max_len = 0x3c0000,
147        .kernel_la = 0x80060000,
148        .kernel_ep = 0x80060000,
149        .rootfs_ofs = 0x140000,
150    }, {
151        .id = "TL-WA901NDv2",
152        .hw_id = HWID_TL_WA901ND_V2,
153        .hw_rev = 1,
154        .fw_max_len = 0x3c0000,
155        .kernel_la = 0x80060000,
156        .kernel_ep = 0x80060000,
157        .rootfs_ofs = 0x140000,
158    }, {
159        .id = "TL-WR741NDv1",
160        .hw_id = HWID_TL_WR741ND_V1,
161        .hw_rev = 1,
162        .fw_max_len = 0x3c0000,
163        .kernel_la = 0x80060000,
164        .kernel_ep = 0x80060000,
165        .rootfs_ofs = 0x140000,
166    }, {
167        .id = "TL-WR740Nv1",
168        .hw_id = HWID_TL_WR740N_V1,
169        .hw_rev = 1,
170        .fw_max_len = 0x3c0000,
171        .kernel_la = 0x80060000,
172        .kernel_ep = 0x80060000,
173        .rootfs_ofs = 0x140000,
174    }, {
175        .id = "TL-WR740Nv3",
176        .hw_id = HWID_TL_WR740N_V3,
177        .hw_rev = 1,
178        .fw_max_len = 0x3c0000,
179        .kernel_la = 0x80060000,
180        .kernel_ep = 0x80060000,
181        .rootfs_ofs = 0x140000,
182    }, {
183        .id = "TL-WR743NDv1",
184        .hw_id = HWID_TL_WR743ND_V1,
185        .hw_rev = 1,
186        .fw_max_len = 0x3c0000,
187        .kernel_la = 0x80060000,
188        .kernel_ep = 0x80060000,
189        .rootfs_ofs = 0x140000,
190    }, {
191        .id = "TL-WR841Nv1.5",
192        .hw_id = HWID_TL_WR841N_V1_5,
193        .hw_rev = 2,
194        .fw_max_len = 0x3c0000,
195        .kernel_la = 0x80060000,
196        .kernel_ep = 0x80060000,
197        .rootfs_ofs = 0x140000,
198    }, {
199        .id = "TL-WR841NDv3",
200        .hw_id = HWID_TL_WR841ND_V3,
201        .hw_rev = 3,
202        .fw_max_len = 0x3c0000,
203        .kernel_la = 0x80060000,
204        .kernel_ep = 0x80060000,
205        .rootfs_ofs = 0x140000,
206    }, {
207        .id = "TL-WR841NDv5",
208        .hw_id = HWID_TL_WR841ND_V5,
209        .hw_rev = 1,
210        .fw_max_len = 0x3c0000,
211        .kernel_la = 0x80060000,
212        .kernel_ep = 0x80060000,
213        .rootfs_ofs = 0x140000,
214    }, {
215        .id = "TL-WR841NDv7",
216        .hw_id = HWID_TL_WR841ND_V7,
217        .hw_rev = 1,
218        .fw_max_len = 0x3c0000,
219        .kernel_la = 0x80060000,
220        .kernel_ep = 0x80060000,
221        .rootfs_ofs = 0x140000,
222    }, {
223        .id = "TL-WR941NDv2",
224        .hw_id = HWID_TL_WR941ND_V2,
225        .hw_rev = 2,
226        .fw_max_len = 0x3c0000,
227        .kernel_la = 0x80060000,
228        .kernel_ep = 0x80060000,
229        .rootfs_ofs = 0x140000,
230    }, {
231        .id = "TL-WR941NDv4",
232        .hw_id = HWID_TL_WR941ND_V4,
233        .hw_rev = 1,
234        .fw_max_len = 0x3c0000,
235        .kernel_la = 0x80060000,
236        .kernel_ep = 0x80060000,
237        .rootfs_ofs = 0x140000,
238    }, {
239        .id = "TL-WR1043NDv1",
240        .hw_id = HWID_TL_WR1043ND_V1,
241        .hw_rev = 1,
242        .fw_max_len = 0x7c0000,
243        .kernel_la = 0x80060000,
244        .kernel_ep = 0x80060000,
245        .rootfs_ofs = 0x140000,
246    }, {
247        .id = "TL-WR703Nv1",
248        .hw_id = HWID_TL_WR703N_V1,
249        .hw_rev = 1,
250        .fw_max_len = 0x3c0000,
251        .kernel_la = 0x80060000,
252        .kernel_ep = 0x80060000,
253        .rootfs_ofs = 0x100000,
254    }, {
255        /* terminating entry */
256    }
257};
258
259/*
260 * Message macros
261 */
262#define ERR(fmt, ...) do { \
263    fflush(0); \
264    fprintf(stderr, "[%s] *** error: " fmt "\n", \
265            progname, ## __VA_ARGS__ ); \
266} while (0)
267
268#define ERRS(fmt, ...) do { \
269    int save = errno; \
270    fflush(0); \
271    fprintf(stderr, "[%s] *** error: " fmt "\n", \
272            progname, ## __VA_ARGS__, strerror(save)); \
273} while (0)
274
275#define DBG(fmt, ...) do { \
276    fprintf(stderr, "[%s] " fmt "\n", progname, ## __VA_ARGS__ ); \
277} while (0)
278
279static struct board_info *find_board(char *id)
280{
281    struct board_info *ret;
282    struct board_info *board;
283
284    ret = NULL;
285    for (board = boards; board->id != NULL; board++){
286        if (strcasecmp(id, board->id) == 0) {
287            ret = board;
288            break;
289        }
290    };
291
292    return ret;
293}
294
295static struct board_info *find_board_by_hwid(uint32_t hw_id)
296{
297    struct board_info *board;
298
299    for (board = boards; board->id != NULL; board++) {
300        if (hw_id == board->hw_id)
301            return board;
302    };
303
304    return NULL;
305}
306
307
308static void usage(int status)
309{
310    FILE *stream = (status != EXIT_SUCCESS) ? stderr : stdout;
311    struct board_info *board;
312
313    fprintf(stream, "Usage: %s [OPTIONS...]\n", progname);
314    fprintf(stream,
315"\n"
316"Options:\n"
317" -B <board> create image for the board specified with <board>\n"
318" -c use combined kernel image\n"
319" -E <ep> overwrite kernel entry point with <ep> (hexval prefixed with 0x)\n"
320" -L <la> overwrite kernel load address with <la> (hexval prefixed with 0x)\n"
321" -k <file> read kernel image from the file <file>\n"
322" -r <file> read rootfs image from the file <file>\n"
323" -R <offset> overwrite rootfs offset with <offset> (hexval prefixed with 0x)\n"
324" -o <file> write output to the file <file>\n"
325" -s strip padding from the end of the image\n"
326" -N <vendor> set image vendor to <vendor>\n"
327" -V <version> set image version to <version>\n"
328" -i <file> inspect given firmware file <file>\n"
329" -x extract kernel and rootfs while inspecting (requires -i)\n"
330" -h show this screen\n"
331    );
332
333    exit(status);
334}
335
336static int get_md5(char *data, int size, char *md5)
337{
338    MD5_CTX ctx;
339
340    MD5_Init(&ctx);
341    MD5_Update(&ctx, data, size);
342    MD5_Final(md5, &ctx);
343}
344
345static int get_file_stat(struct file_info *fdata)
346{
347    struct stat st;
348    int res;
349
350    if (fdata->file_name == NULL)
351        return 0;
352
353    res = stat(fdata->file_name, &st);
354    if (res){
355        ERRS("stat failed on %s", fdata->file_name);
356        return res;
357    }
358
359    fdata->file_size = st.st_size;
360    return 0;
361}
362
363static int read_to_buf(struct file_info *fdata, char *buf)
364{
365    FILE *f;
366    int ret = EXIT_FAILURE;
367
368    f = fopen(fdata->file_name, "r");
369    if (f == NULL) {
370        ERRS("could not open \"%s\" for reading", fdata->file_name);
371        goto out;
372    }
373
374    errno = 0;
375    fread(buf, fdata->file_size, 1, f);
376    if (errno != 0) {
377        ERRS("unable to read from file \"%s\"", fdata->file_name);
378        goto out_close;
379    }
380
381    ret = EXIT_SUCCESS;
382
383 out_close:
384    fclose(f);
385 out:
386    return ret;
387}
388
389static int check_options(void)
390{
391    int ret;
392
393    if (inspect_info.file_name) {
394        ret = get_file_stat(&inspect_info);
395        if (ret)
396            return ret;
397
398        return 0;
399    } else if (extract) {
400        ERR("no firmware for inspection specified");
401        return -1;
402    }
403
404    if (board_id == NULL) {
405        ERR("no board specified");
406        return -1;
407    }
408
409    board = find_board(board_id);
410    if (board == NULL) {
411        ERR("unknown/unsupported board id \"%s\"", board_id);
412        return -1;
413    }
414    if (!kernel_la)
415        kernel_la = board->kernel_la;
416    if (!kernel_ep)
417        kernel_ep = board->kernel_ep;
418    if (!rootfs_ofs)
419        rootfs_ofs = board->rootfs_ofs;
420
421    if (kernel_info.file_name == NULL) {
422        ERR("no kernel image specified");
423        return -1;
424    }
425
426    ret = get_file_stat(&kernel_info);
427    if (ret)
428        return ret;
429
430    if (combined) {
431        if (kernel_info.file_size >
432            board->fw_max_len - sizeof(struct fw_header)) {
433            ERR("kernel image is too big");
434            return -1;
435        }
436    } else {
437        if (kernel_info.file_size >
438            rootfs_ofs - sizeof(struct fw_header)) {
439            ERR("kernel image is too big");
440            return -1;
441        }
442        if (rootfs_info.file_name == NULL) {
443            ERR("no rootfs image specified");
444            return -1;
445        }
446
447        ret = get_file_stat(&rootfs_info);
448        if (ret)
449            return ret;
450
451        if (rootfs_info.file_size >
452                    (board->fw_max_len - rootfs_ofs)) {
453            ERR("rootfs image is too big");
454            return -1;
455        }
456    }
457
458    if (ofname == NULL) {
459        ERR("no output file specified");
460        return -1;
461    }
462
463    return 0;
464}
465
466static void fill_header(char *buf, int len)
467{
468    struct fw_header *hdr = (struct fw_header *)buf;
469
470    memset(hdr, 0, sizeof(struct fw_header));
471
472    hdr->version = HOST_TO_BE32(HEADER_VERSION_V1);
473    strncpy(hdr->vendor_name, vendor, sizeof(hdr->vendor_name));
474    strncpy(hdr->fw_version, version, sizeof(hdr->fw_version));
475    hdr->hw_id = HOST_TO_BE32(board->hw_id);
476    hdr->hw_rev = HOST_TO_BE32(board->hw_rev);
477
478    if (boot_info.file_size == 0)
479        memcpy(hdr->md5sum1, md5salt_normal, sizeof(hdr->md5sum1));
480    else
481        memcpy(hdr->md5sum1, md5salt_boot, sizeof(hdr->md5sum1));
482
483    hdr->kernel_la = HOST_TO_BE32(kernel_la);
484    hdr->kernel_ep = HOST_TO_BE32(kernel_ep);
485    hdr->fw_length = HOST_TO_BE32(board->fw_max_len);
486    hdr->kernel_ofs = HOST_TO_BE32(sizeof(struct fw_header));
487    hdr->kernel_len = HOST_TO_BE32(kernel_info.file_size);
488    if (!combined) {
489        hdr->rootfs_ofs = HOST_TO_BE32(rootfs_ofs);
490        hdr->rootfs_len = HOST_TO_BE32(rootfs_info.file_size);
491    }
492
493    get_md5(buf, len, hdr->md5sum1);
494}
495
496static int write_fw(char *data, int len)
497{
498    FILE *f;
499    int ret = EXIT_FAILURE;
500
501    f = fopen(ofname, "w");
502    if (f == NULL) {
503        ERRS("could not open \"%s\" for writing", ofname);
504        goto out;
505    }
506
507    errno = 0;
508    fwrite(data, len, 1, f);
509    if (errno) {
510        ERRS("unable to write output file");
511        goto out_flush;
512    }
513
514    DBG("firmware file \"%s\" completed", ofname);
515
516    ret = EXIT_SUCCESS;
517
518 out_flush:
519    fflush(f);
520    fclose(f);
521    if (ret != EXIT_SUCCESS) {
522        unlink(ofname);
523    }
524 out:
525    return ret;
526}
527
528static int build_fw(void)
529{
530    int buflen;
531    char *buf;
532    char *p;
533    int ret = EXIT_FAILURE;
534    int writelen = 0;
535
536    buflen = board->fw_max_len;
537
538    buf = malloc(buflen);
539    if (!buf) {
540        ERR("no memory for buffer\n");
541        goto out;
542    }
543
544    memset(buf, 0xff, buflen);
545    p = buf + sizeof(struct fw_header);
546    ret = read_to_buf(&kernel_info, p);
547    if (ret)
548        goto out_free_buf;
549
550    writelen = kernel_info.file_size;
551
552    if (!combined) {
553        p = buf + rootfs_ofs;
554        ret = read_to_buf(&rootfs_info, p);
555        if (ret)
556            goto out_free_buf;
557
558        writelen = rootfs_ofs + rootfs_info.file_size;
559    }
560
561    if (!strip_padding)
562        writelen = buflen;
563
564    fill_header(buf, writelen);
565    ret = write_fw(buf, writelen);
566    if (ret)
567        goto out_free_buf;
568
569    ret = EXIT_SUCCESS;
570
571 out_free_buf:
572    free(buf);
573 out:
574    return ret;
575}
576
577/* Helper functions to inspect_fw() representing different output formats */
578static inline void inspect_fw_pstr(char *label, char *str)
579{
580    printf("%-23s: %s\n", label, str);
581}
582
583static inline void inspect_fw_phex(char *label, uint32_t val)
584{
585    printf("%-23s: 0x%08x\n", label, val);
586}
587
588static inline void inspect_fw_phexpost(char *label,
589                                       uint32_t val, char *post)
590{
591    printf("%-23s: 0x%08x (%s)\n", label, val, post);
592}
593
594static inline void inspect_fw_phexdef(char *label,
595                                      uint32_t val, uint32_t defval)
596{
597    printf("%-23s: 0x%08x ", label, val);
598
599    if (val == defval)
600        printf("(== OpenWrt default)\n");
601    else
602        printf("(OpenWrt default: 0x%08x)\n", defval);
603}
604
605static inline void inspect_fw_phexexp(char *label,
606                                      uint32_t val, uint32_t expval)
607{
608    printf("%-23s: 0x%08x ", label, val);
609
610    if (val == expval)
611        printf("(ok)\n");
612    else
613        printf("(expected: 0x%08x)\n", expval);
614}
615
616static inline void inspect_fw_phexdec(char *label, uint32_t val)
617{
618    printf("%-23s: 0x%08x / %8u bytes\n", label, val, val);
619}
620
621static inline void inspect_fw_phexdecdef(char *label,
622                                         uint32_t val, uint32_t defval)
623{
624    printf("%-23s: 0x%08x / %8u bytes ", label, val, val);
625
626    if (val == defval)
627        printf("(== OpenWrt default)\n");
628    else
629        printf("(OpenWrt default: 0x%08x)\n", defval);
630}
631
632static inline void inspect_fw_pmd5sum(char *label, uint8_t *val, char *text)
633{
634    int i;
635
636    printf("%-23s:", label);
637    for (i=0; i<MD5SUM_LEN; i++)
638        printf(" %02x", val[i]);
639    printf(" %s\n", text);
640}
641
642static int inspect_fw(void)
643{
644    char *buf;
645    struct fw_header *hdr;
646    uint8_t md5sum[MD5SUM_LEN];
647    struct board_info *board;
648    int ret = EXIT_FAILURE;
649
650    buf = malloc(inspect_info.file_size);
651    if (!buf) {
652        ERR("no memory for buffer!\n");
653        goto out;
654    }
655
656    ret = read_to_buf(&inspect_info, buf);
657    if (ret)
658        goto out_free_buf;
659    hdr = (struct fw_header *)buf;
660
661    inspect_fw_pstr("File name", inspect_info.file_name);
662    inspect_fw_phexdec("File size", inspect_info.file_size);
663
664    if (BE32_TO_HOST(hdr->version) != HEADER_VERSION_V1) {
665        ERR("file does not seem to have V1 header!\n");
666        goto out_free_buf;
667    }
668
669    inspect_fw_phexdec("Version 1 Header size", sizeof(struct fw_header));
670
671    if (BE32_TO_HOST(hdr->unk1) != 0)
672        inspect_fw_phexdec("Unknown value 1", hdr->unk1);
673
674    memcpy(md5sum, hdr->md5sum1, sizeof(md5sum));
675    if (BE32_TO_HOST(hdr->boot_len) == 0)
676        memcpy(hdr->md5sum1, md5salt_normal, sizeof(md5sum));
677    else
678        memcpy(hdr->md5sum1, md5salt_boot, sizeof(md5sum));
679    get_md5(buf, inspect_info.file_size, hdr->md5sum1);
680
681    if (memcmp(md5sum, hdr->md5sum1, sizeof(md5sum))) {
682        inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(*ERROR*)");
683        inspect_fw_pmd5sum(" --> expected", hdr->md5sum1, "");
684    } else {
685        inspect_fw_pmd5sum("Header MD5Sum1", md5sum, "(ok)");
686    }
687    if (BE32_TO_HOST(hdr->unk2) != 0)
688        inspect_fw_phexdec("Unknown value 2", hdr->unk2);
689    inspect_fw_pmd5sum("Header MD5Sum2", hdr->md5sum2,
690                       "(purpose yet unknown, unchecked here)");
691    if (BE32_TO_HOST(hdr->unk3) != 0)
692        inspect_fw_phexdec("Unknown value 3", hdr->unk3);
693
694    printf("\n");
695
696    inspect_fw_pstr("Vendor name", hdr->vendor_name);
697    inspect_fw_pstr("Firmware version", hdr->fw_version);
698    board = find_board_by_hwid(BE32_TO_HOST(hdr->hw_id));
699    if (board) {
700        inspect_fw_phexpost("Hardware ID",
701                            BE32_TO_HOST(hdr->hw_id), board->id);
702        inspect_fw_phexexp("Hardware Revision",
703                           BE32_TO_HOST(hdr->hw_rev), board->hw_rev);
704    } else {
705        inspect_fw_phexpost("Hardware ID",
706                            BE32_TO_HOST(hdr->hw_id), "unknown");
707        inspect_fw_phex("Hardware Revision",
708                        BE32_TO_HOST(hdr->hw_rev));
709    }
710
711    printf("\n");
712
713    inspect_fw_phexdec("Kernel data offset",
714                       BE32_TO_HOST(hdr->kernel_ofs));
715    inspect_fw_phexdec("Kernel data length",
716                       BE32_TO_HOST(hdr->kernel_len));
717    if (board) {
718        inspect_fw_phexdef("Kernel load address",
719                           BE32_TO_HOST(hdr->kernel_la),
720                           board->kernel_la);
721        inspect_fw_phexdef("Kernel entry point",
722                           BE32_TO_HOST(hdr->kernel_ep),
723                           board->kernel_ep);
724        inspect_fw_phexdecdef("Rootfs data offset",
725                              BE32_TO_HOST(hdr->rootfs_ofs),
726                              board->rootfs_ofs);
727    } else {
728        inspect_fw_phex("Kernel load address",
729                        BE32_TO_HOST(hdr->kernel_la));
730        inspect_fw_phex("Kernel entry point",
731                        BE32_TO_HOST(hdr->kernel_ep));
732        inspect_fw_phexdec("Rootfs data offset",
733                           BE32_TO_HOST(hdr->rootfs_ofs));
734    }
735    inspect_fw_phexdec("Rootfs data length",
736                       BE32_TO_HOST(hdr->rootfs_len));
737    inspect_fw_phexdec("Boot loader data offset",
738                       BE32_TO_HOST(hdr->boot_ofs));
739    inspect_fw_phexdec("Boot loader data length",
740                       BE32_TO_HOST(hdr->boot_len));
741    inspect_fw_phexdec("Total firmware length",
742                       BE32_TO_HOST(hdr->fw_length));
743
744    if (extract) {
745        FILE *fp;
746        char *filename;
747
748        printf("\n");
749
750        filename = malloc(strlen(inspect_info.file_name) + 8);
751        sprintf(filename, "%s-kernel", inspect_info.file_name);
752        printf("Extracting kernel to \"%s\"...\n", filename);
753        fp = fopen(filename, "w");
754        if (fp) {
755            if (!fwrite(buf + BE32_TO_HOST(hdr->kernel_ofs),
756                        BE32_TO_HOST(hdr->kernel_len), 1, fp)) {
757                ERR("error in fwrite(): %s", strerror(errno));
758            }
759            fclose(fp);
760        } else {
761            ERR("error in fopen(): %s", strerror(errno));
762        }
763        free(filename);
764
765        filename = malloc(strlen(inspect_info.file_name) + 8);
766        sprintf(filename, "%s-rootfs", inspect_info.file_name);
767        printf("Extracting rootfs to \"%s\"...\n", filename);
768        fp = fopen(filename, "w");
769        if (fp) {
770            if (!fwrite(buf + BE32_TO_HOST(hdr->rootfs_ofs),
771                        BE32_TO_HOST(hdr->rootfs_len), 1, fp)) {
772                ERR("error in fwrite(): %s", strerror(errno));
773            }
774            fclose(fp);
775        } else {
776            ERR("error in fopen(): %s", strerror(errno));
777        }
778        free(filename);
779    }
780
781 out_free_buf:
782    free(buf);
783 out:
784    return ret;
785}
786
787int main(int argc, char *argv[])
788{
789    int ret = EXIT_FAILURE;
790    int err;
791
792    FILE *outfile;
793
794    progname = basename(argv[0]);
795
796    while ( 1 ) {
797        int c;
798
799        c = getopt(argc, argv, "B:E:L:V:N:ci:k:r:R:o:xhs");
800        if (c == -1)
801            break;
802
803        switch (c) {
804        case 'B':
805            board_id = optarg;
806            break;
807        case 'E':
808            sscanf(optarg, "0x%x", &kernel_ep);
809            break;
810        case 'L':
811            sscanf(optarg, "0x%x", &kernel_la);
812            break;
813        case 'V':
814            version = optarg;
815            break;
816        case 'N':
817            vendor = optarg;
818            break;
819        case 'c':
820            combined++;
821            break;
822        case 'k':
823            kernel_info.file_name = optarg;
824            break;
825        case 'r':
826            rootfs_info.file_name = optarg;
827            break;
828        case 'R':
829            sscanf(optarg, "0x%x", &rootfs_ofs);
830            break;
831        case 'o':
832            ofname = optarg;
833            break;
834        case 's':
835            strip_padding = 1;
836            break;
837        case 'i':
838            inspect_info.file_name = optarg;
839            break;
840        case 'x':
841            extract = 1;
842            break;
843        case 'h':
844            usage(EXIT_SUCCESS);
845            break;
846        default:
847            usage(EXIT_FAILURE);
848            break;
849        }
850    }
851
852    ret = check_options();
853    if (ret)
854        goto out;
855
856    if (!inspect_info.file_name)
857        ret = build_fw();
858    else
859        ret = inspect_fw();
860
861 out:
862    return ret;
863}
864
865

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