692 lines
22 KiB
C
692 lines
22 KiB
C
/*
|
|
* dumpjffs2.c
|
|
*
|
|
* Copyright (C) 2003 Thomas Gleixner (tglx@linutronix.de)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
* Overview:
|
|
* This utility dumps the contents of a binary JFFS2 image
|
|
*
|
|
*
|
|
* Bug/ToDo:
|
|
*/
|
|
|
|
#define PROGRAM_NAME "jffs2dump"
|
|
|
|
#include <errno.h>
|
|
#include <stdint.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <time.h>
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include <sys/param.h>
|
|
#include <asm/types.h>
|
|
#include <dirent.h>
|
|
#include <mtd/jffs2-user.h>
|
|
#include <endian.h>
|
|
#include <byteswap.h>
|
|
#include <getopt.h>
|
|
#include <crc32.h>
|
|
#include "summary.h"
|
|
#include "common.h"
|
|
|
|
#define PAD(x) (((x)+3)&~3)
|
|
|
|
/* For outputting a byte-swapped version of the input image. */
|
|
#define cnv_e32(x) ((jint32_t){bswap_32(x.v32)})
|
|
#define cnv_e16(x) ((jint16_t){bswap_16(x.v16)})
|
|
|
|
#define t32_backwards(x) ({ uint32_t __b = (x); (target_endian==__BYTE_ORDER)?bswap_32(__b):__b; })
|
|
#define cpu_to_e32(x) ((jint32_t){t32_backwards(x)})
|
|
|
|
// Global variables
|
|
long imglen; // length of image
|
|
char *data; // image data
|
|
|
|
void display_help (void)
|
|
{
|
|
printf("Usage: %s [OPTION]... INPUTFILE\n"
|
|
"Dump the contents of a binary JFFS2 image.\n\n"
|
|
" --help display this help and exit\n"
|
|
" --version display version information and exit\n"
|
|
" -b, --bigendian image is big endian\n"
|
|
" -l, --littleendian image is little endian\n"
|
|
" -c, --content dump image contents\n"
|
|
" -e, --endianconvert=FNAME convert image endianness, output to file fname\n"
|
|
" -r, --recalccrc recalc name and data crc on endian conversion\n"
|
|
" -d, --datsize=LEN size of data chunks, when oob data in binary image (NAND only)\n"
|
|
" -o, --oobsize=LEN size of oob data chunk in binary image (NAND only)\n"
|
|
" -v, --verbose verbose output\n",
|
|
PROGRAM_NAME);
|
|
exit(0);
|
|
}
|
|
|
|
void display_version (void)
|
|
{
|
|
printf("%1$s " VERSION "\n"
|
|
"\n"
|
|
"Copyright (C) 2003 Thomas Gleixner \n"
|
|
"\n"
|
|
"%1$s comes with NO WARRANTY\n"
|
|
"to the extent permitted by law.\n"
|
|
"\n"
|
|
"You may redistribute copies of %1$s\n"
|
|
"under the terms of the GNU General Public Licence.\n"
|
|
"See the file `COPYING' for more information.\n",
|
|
PROGRAM_NAME);
|
|
exit(0);
|
|
}
|
|
|
|
// Option variables
|
|
|
|
int verbose; // verbose output
|
|
char *img; // filename of image
|
|
int dumpcontent; // dump image content
|
|
int target_endian = __BYTE_ORDER; // image endianess
|
|
int convertendian; // convert endianness
|
|
int recalccrc; // recalc name and data crc's on endian conversion
|
|
char cnvfile[256]; // filename for conversion output
|
|
int datsize; // Size of data chunks, when oob data is inside the binary image
|
|
int oobsize; // Size of oob chunks, when oob data is inside the binary image
|
|
|
|
void process_options (int argc, char *argv[])
|
|
{
|
|
int error = 0;
|
|
|
|
for (;;) {
|
|
int option_index = 0;
|
|
static const char *short_options = "blce:rd:o:v";
|
|
static const struct option long_options[] = {
|
|
{"help", no_argument, 0, 0},
|
|
{"version", no_argument, 0, 0},
|
|
{"bigendian", no_argument, 0, 'b'},
|
|
{"littleendian", no_argument, 0, 'l'},
|
|
{"content", no_argument, 0, 'c'},
|
|
{"endianconvert", required_argument, 0, 'e'},
|
|
{"datsize", required_argument, 0, 'd'},
|
|
{"oobsize", required_argument, 0, 'o'},
|
|
{"recalccrc", required_argument, 0, 'r'},
|
|
{"verbose", no_argument, 0, 'v'},
|
|
{0, 0, 0, 0},
|
|
};
|
|
|
|
int c = getopt_long(argc, argv, short_options,
|
|
long_options, &option_index);
|
|
if (c == EOF) {
|
|
break;
|
|
}
|
|
|
|
switch (c) {
|
|
case 0:
|
|
switch (option_index) {
|
|
case 0:
|
|
display_help();
|
|
break;
|
|
case 1:
|
|
display_version();
|
|
break;
|
|
}
|
|
break;
|
|
case 'v':
|
|
verbose = 1;
|
|
break;
|
|
case 'b':
|
|
target_endian = __BIG_ENDIAN;
|
|
break;
|
|
case 'l':
|
|
target_endian = __LITTLE_ENDIAN;
|
|
break;
|
|
case 'c':
|
|
dumpcontent = 1;
|
|
break;
|
|
case 'd':
|
|
datsize = atoi(optarg);
|
|
break;
|
|
case 'o':
|
|
oobsize = atoi(optarg);
|
|
break;
|
|
case 'e':
|
|
convertendian = 1;
|
|
strcpy (cnvfile, optarg);
|
|
break;
|
|
case 'r':
|
|
recalccrc = 1;
|
|
break;
|
|
case '?':
|
|
error = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if ((argc - optind) != 1 || error)
|
|
display_help ();
|
|
|
|
img = argv[optind];
|
|
}
|
|
|
|
|
|
/*
|
|
* Dump image contents
|
|
*/
|
|
void do_dumpcontent (void)
|
|
{
|
|
char *p = data, *p_free_begin;
|
|
union jffs2_node_union *node;
|
|
int empty = 0, dirty = 0;
|
|
char name[256];
|
|
uint32_t crc;
|
|
uint16_t type;
|
|
int bitchbitmask = 0;
|
|
int obsolete;
|
|
|
|
p_free_begin = NULL;
|
|
while ( p < (data + imglen)) {
|
|
node = (union jffs2_node_union*) p;
|
|
|
|
/* Skip empty space */
|
|
if (!p_free_begin)
|
|
p_free_begin = p;
|
|
if (je16_to_cpu (node->u.magic) == 0xFFFF && je16_to_cpu (node->u.nodetype) == 0xFFFF) {
|
|
p += 4;
|
|
empty += 4;
|
|
continue;
|
|
}
|
|
|
|
if (p != p_free_begin)
|
|
printf("Empty space found from 0x%08zx to 0x%08zx\n", p_free_begin-data, p-data);
|
|
p_free_begin = NULL;
|
|
|
|
if (je16_to_cpu (node->u.magic) != JFFS2_MAGIC_BITMASK) {
|
|
if (!bitchbitmask++)
|
|
printf ("Wrong bitmask at 0x%08zx, 0x%04x\n", p - data, je16_to_cpu (node->u.magic));
|
|
p += 4;
|
|
dirty += 4;
|
|
continue;
|
|
}
|
|
bitchbitmask = 0;
|
|
|
|
type = je16_to_cpu(node->u.nodetype);
|
|
if ((type & JFFS2_NODE_ACCURATE) != JFFS2_NODE_ACCURATE) {
|
|
obsolete = 1;
|
|
type |= JFFS2_NODE_ACCURATE;
|
|
} else
|
|
obsolete = 0;
|
|
/* Set accurate for CRC check */
|
|
node->u.nodetype = cpu_to_je16(type);
|
|
|
|
crc = mtd_crc32 (0, node, sizeof (struct jffs2_unknown_node) - 4);
|
|
if (crc != je32_to_cpu (node->u.hdr_crc)) {
|
|
printf ("Wrong hdr_crc at 0x%08zx, 0x%08x instead of 0x%08x\n", p - data, je32_to_cpu (node->u.hdr_crc), crc);
|
|
p += 4;
|
|
dirty += 4;
|
|
continue;
|
|
}
|
|
|
|
switch(je16_to_cpu(node->u.nodetype)) {
|
|
|
|
case JFFS2_NODETYPE_INODE:
|
|
printf ("%8s Inode node at 0x%08zx, totlen 0x%08x, #ino %5d, version %5d, isize %8d, csize %8d, dsize %8d, offset %8d\n",
|
|
obsolete ? "Obsolete" : "",
|
|
p - data, je32_to_cpu (node->i.totlen), je32_to_cpu (node->i.ino),
|
|
je32_to_cpu ( node->i.version), je32_to_cpu (node->i.isize),
|
|
je32_to_cpu (node->i.csize), je32_to_cpu (node->i.dsize), je32_to_cpu (node->i.offset));
|
|
|
|
crc = mtd_crc32 (0, node, sizeof (struct jffs2_raw_inode) - 8);
|
|
if (crc != je32_to_cpu (node->i.node_crc)) {
|
|
printf ("Wrong node_crc at 0x%08zx, 0x%08x instead of 0x%08x\n", p - data, je32_to_cpu (node->i.node_crc), crc);
|
|
p += PAD(je32_to_cpu (node->i.totlen));
|
|
dirty += PAD(je32_to_cpu (node->i.totlen));;
|
|
continue;
|
|
}
|
|
|
|
crc = mtd_crc32(0, p + sizeof (struct jffs2_raw_inode), je32_to_cpu(node->i.csize));
|
|
if (crc != je32_to_cpu(node->i.data_crc)) {
|
|
printf ("Wrong data_crc at 0x%08zx, 0x%08x instead of 0x%08x\n", p - data, je32_to_cpu (node->i.data_crc), crc);
|
|
p += PAD(je32_to_cpu (node->i.totlen));
|
|
dirty += PAD(je32_to_cpu (node->i.totlen));;
|
|
continue;
|
|
}
|
|
|
|
p += PAD(je32_to_cpu (node->i.totlen));
|
|
break;
|
|
|
|
case JFFS2_NODETYPE_DIRENT:
|
|
memcpy (name, node->d.name, node->d.nsize);
|
|
name [node->d.nsize] = 0x0;
|
|
printf ("%8s Dirent node at 0x%08zx, totlen 0x%08x, #pino %5d, version %5d, #ino %8d, nsize %8d, name %s\n",
|
|
obsolete ? "Obsolete" : "",
|
|
p - data, je32_to_cpu (node->d.totlen), je32_to_cpu (node->d.pino),
|
|
je32_to_cpu ( node->d.version), je32_to_cpu (node->d.ino),
|
|
node->d.nsize, name);
|
|
|
|
crc = mtd_crc32 (0, node, sizeof (struct jffs2_raw_dirent) - 8);
|
|
if (crc != je32_to_cpu (node->d.node_crc)) {
|
|
printf ("Wrong node_crc at 0x%08zx, 0x%08x instead of 0x%08x\n", p - data, je32_to_cpu (node->d.node_crc), crc);
|
|
p += PAD(je32_to_cpu (node->d.totlen));
|
|
dirty += PAD(je32_to_cpu (node->d.totlen));;
|
|
continue;
|
|
}
|
|
|
|
crc = mtd_crc32(0, p + sizeof (struct jffs2_raw_dirent), node->d.nsize);
|
|
if (crc != je32_to_cpu(node->d.name_crc)) {
|
|
printf ("Wrong name_crc at 0x%08zx, 0x%08x instead of 0x%08x\n", p - data, je32_to_cpu (node->d.name_crc), crc);
|
|
p += PAD(je32_to_cpu (node->d.totlen));
|
|
dirty += PAD(je32_to_cpu (node->d.totlen));;
|
|
continue;
|
|
}
|
|
|
|
p += PAD(je32_to_cpu (node->d.totlen));
|
|
break;
|
|
|
|
case JFFS2_NODETYPE_SUMMARY: {
|
|
|
|
int i;
|
|
struct jffs2_sum_marker * sm;
|
|
|
|
printf("%8s Inode Sum node at 0x%08zx, totlen 0x%08x, sum_num %5d, cleanmarker size %5d\n",
|
|
obsolete ? "Obsolete" : "",
|
|
p - data,
|
|
je32_to_cpu (node->s.totlen),
|
|
je32_to_cpu (node->s.sum_num),
|
|
je32_to_cpu (node->s.cln_mkr));
|
|
|
|
crc = mtd_crc32 (0, node, sizeof (struct jffs2_raw_summary) - 8);
|
|
if (crc != je32_to_cpu (node->s.node_crc)) {
|
|
printf ("Wrong node_crc at 0x%08zx, 0x%08x instead of 0x%08x\n", p - data, je32_to_cpu (node->s.node_crc), crc);
|
|
p += PAD(je32_to_cpu (node->s.totlen));
|
|
dirty += PAD(je32_to_cpu (node->s.totlen));;
|
|
continue;
|
|
}
|
|
|
|
crc = mtd_crc32(0, p + sizeof (struct jffs2_raw_summary), je32_to_cpu (node->s.totlen) - sizeof(struct jffs2_raw_summary));
|
|
if (crc != je32_to_cpu(node->s.sum_crc)) {
|
|
printf ("Wrong data_crc at 0x%08zx, 0x%08x instead of 0x%08x\n", p - data, je32_to_cpu (node->s.sum_crc), crc);
|
|
p += PAD(je32_to_cpu (node->s.totlen));
|
|
dirty += PAD(je32_to_cpu (node->s.totlen));;
|
|
continue;
|
|
}
|
|
|
|
if (verbose) {
|
|
void *sp;
|
|
sp = (p + sizeof(struct jffs2_raw_summary));
|
|
|
|
for(i=0; i<je32_to_cpu(node->s.sum_num); i++) {
|
|
|
|
switch(je16_to_cpu(((struct jffs2_sum_unknown_flash *)sp)->nodetype)) {
|
|
case JFFS2_NODETYPE_INODE : {
|
|
|
|
struct jffs2_sum_inode_flash *spi;
|
|
spi = sp;
|
|
|
|
printf ("%14s #ino %5d, version %5d, offset 0x%08x, totlen 0x%08x\n",
|
|
"",
|
|
je32_to_cpu (spi->inode),
|
|
je32_to_cpu (spi->version),
|
|
je32_to_cpu (spi->offset),
|
|
je32_to_cpu (spi->totlen));
|
|
|
|
sp += JFFS2_SUMMARY_INODE_SIZE;
|
|
break;
|
|
}
|
|
|
|
case JFFS2_NODETYPE_DIRENT : {
|
|
|
|
char name[255];
|
|
struct jffs2_sum_dirent_flash *spd;
|
|
spd = sp;
|
|
|
|
memcpy(name,spd->name,spd->nsize);
|
|
name [spd->nsize] = 0x0;
|
|
|
|
printf ("%14s dirent offset 0x%08x, totlen 0x%08x, #pino %5d, version %5d, #ino %8d, nsize %8d, name %s \n",
|
|
"",
|
|
je32_to_cpu (spd->offset),
|
|
je32_to_cpu (spd->totlen),
|
|
je32_to_cpu (spd->pino),
|
|
je32_to_cpu (spd->version),
|
|
je32_to_cpu (spd->ino),
|
|
spd->nsize,
|
|
name);
|
|
|
|
sp += JFFS2_SUMMARY_DIRENT_SIZE(spd->nsize);
|
|
break;
|
|
}
|
|
|
|
default :
|
|
printf("Unknown summary node!\n");
|
|
break;
|
|
}
|
|
}
|
|
|
|
sm = (struct jffs2_sum_marker *) ((char *)p + je32_to_cpu(node->s.totlen) - sizeof(struct jffs2_sum_marker));
|
|
|
|
printf("%14s Sum Node Offset 0x%08x, Magic 0x%08x, Padded size 0x%08x\n",
|
|
"",
|
|
je32_to_cpu(sm->offset),
|
|
je32_to_cpu(sm->magic),
|
|
je32_to_cpu(node->s.padded));
|
|
}
|
|
|
|
p += PAD(je32_to_cpu (node->s.totlen));
|
|
break;
|
|
}
|
|
|
|
case JFFS2_NODETYPE_CLEANMARKER:
|
|
if (verbose) {
|
|
printf ("%8s Cleanmarker at 0x%08zx, totlen 0x%08x\n",
|
|
obsolete ? "Obsolete" : "",
|
|
p - data, je32_to_cpu (node->u.totlen));
|
|
}
|
|
p += PAD(je32_to_cpu (node->u.totlen));
|
|
break;
|
|
|
|
case JFFS2_NODETYPE_PADDING:
|
|
if (verbose) {
|
|
printf ("%8s Padding node at 0x%08zx, totlen 0x%08x\n",
|
|
obsolete ? "Obsolete" : "",
|
|
p - data, je32_to_cpu (node->u.totlen));
|
|
}
|
|
p += PAD(je32_to_cpu (node->u.totlen));
|
|
break;
|
|
|
|
case 0xffff:
|
|
p += 4;
|
|
empty += 4;
|
|
break;
|
|
|
|
default:
|
|
if (verbose) {
|
|
printf ("%8s Unknown node at 0x%08zx, totlen 0x%08x\n",
|
|
obsolete ? "Obsolete" : "",
|
|
p - data, je32_to_cpu (node->u.totlen));
|
|
}
|
|
p += PAD(je32_to_cpu (node->u.totlen));
|
|
dirty += PAD(je32_to_cpu (node->u.totlen));
|
|
|
|
}
|
|
}
|
|
|
|
if (verbose)
|
|
printf ("Empty space: %d, dirty space: %d\n", empty, dirty);
|
|
}
|
|
|
|
/*
|
|
* Convert endianess
|
|
*/
|
|
void do_endianconvert (void)
|
|
{
|
|
char *p = data;
|
|
union jffs2_node_union *node, newnode;
|
|
int fd, len;
|
|
jint32_t mode;
|
|
uint32_t crc;
|
|
|
|
fd = open (cnvfile, O_WRONLY | O_CREAT, 0644);
|
|
if (fd < 0) {
|
|
fprintf (stderr, "Cannot open / create file: %s\n", cnvfile);
|
|
return;
|
|
}
|
|
|
|
while ( p < (data + imglen)) {
|
|
node = (union jffs2_node_union*) p;
|
|
|
|
/* Skip empty space */
|
|
if (je16_to_cpu (node->u.magic) == 0xFFFF && je16_to_cpu (node->u.nodetype) == 0xFFFF) {
|
|
write (fd, p, 4);
|
|
p += 4;
|
|
continue;
|
|
}
|
|
|
|
if (je16_to_cpu (node->u.magic) != JFFS2_MAGIC_BITMASK) {
|
|
printf ("Wrong bitmask at 0x%08zx, 0x%04x\n", p - data, je16_to_cpu (node->u.magic));
|
|
newnode.u.magic = cnv_e16 (node->u.magic);
|
|
newnode.u.nodetype = cnv_e16 (node->u.nodetype);
|
|
write (fd, &newnode, 4);
|
|
p += 4;
|
|
continue;
|
|
}
|
|
|
|
crc = mtd_crc32 (0, node, sizeof (struct jffs2_unknown_node) - 4);
|
|
if (crc != je32_to_cpu (node->u.hdr_crc)) {
|
|
printf ("Wrong hdr_crc at 0x%08zx, 0x%08x instead of 0x%08x\n", p - data, je32_to_cpu (node->u.hdr_crc), crc);
|
|
}
|
|
|
|
switch(je16_to_cpu(node->u.nodetype)) {
|
|
|
|
case JFFS2_NODETYPE_INODE:
|
|
|
|
newnode.i.magic = cnv_e16 (node->i.magic);
|
|
newnode.i.nodetype = cnv_e16 (node->i.nodetype);
|
|
newnode.i.totlen = cnv_e32 (node->i.totlen);
|
|
newnode.i.hdr_crc = cpu_to_e32 (mtd_crc32 (0, &newnode, sizeof (struct jffs2_unknown_node) - 4));
|
|
newnode.i.ino = cnv_e32 (node->i.ino);
|
|
newnode.i.version = cnv_e32 (node->i.version);
|
|
mode.v32 = node->i.mode.m;
|
|
mode = cnv_e32 (mode);
|
|
newnode.i.mode.m = mode.v32;
|
|
newnode.i.uid = cnv_e16 (node->i.uid);
|
|
newnode.i.gid = cnv_e16 (node->i.gid);
|
|
newnode.i.isize = cnv_e32 (node->i.isize);
|
|
newnode.i.atime = cnv_e32 (node->i.atime);
|
|
newnode.i.mtime = cnv_e32 (node->i.mtime);
|
|
newnode.i.ctime = cnv_e32 (node->i.ctime);
|
|
newnode.i.offset = cnv_e32 (node->i.offset);
|
|
newnode.i.csize = cnv_e32 (node->i.csize);
|
|
newnode.i.dsize = cnv_e32 (node->i.dsize);
|
|
newnode.i.compr = node->i.compr;
|
|
newnode.i.usercompr = node->i.usercompr;
|
|
newnode.i.flags = cnv_e16 (node->i.flags);
|
|
if (recalccrc) {
|
|
len = je32_to_cpu(node->i.csize);
|
|
newnode.i.data_crc = cpu_to_e32 ( mtd_crc32(0, p + sizeof (struct jffs2_raw_inode), len));
|
|
} else
|
|
newnode.i.data_crc = cnv_e32 (node->i.data_crc);
|
|
|
|
newnode.i.node_crc = cpu_to_e32 (mtd_crc32 (0, &newnode, sizeof (struct jffs2_raw_inode) - 8));
|
|
|
|
write (fd, &newnode, sizeof (struct jffs2_raw_inode));
|
|
write (fd, p + sizeof (struct jffs2_raw_inode), PAD (je32_to_cpu (node->i.totlen) - sizeof (struct jffs2_raw_inode)));
|
|
|
|
p += PAD(je32_to_cpu (node->i.totlen));
|
|
break;
|
|
|
|
case JFFS2_NODETYPE_DIRENT:
|
|
newnode.d.magic = cnv_e16 (node->d.magic);
|
|
newnode.d.nodetype = cnv_e16 (node->d.nodetype);
|
|
newnode.d.totlen = cnv_e32 (node->d.totlen);
|
|
newnode.d.hdr_crc = cpu_to_e32 (mtd_crc32 (0, &newnode, sizeof (struct jffs2_unknown_node) - 4));
|
|
newnode.d.pino = cnv_e32 (node->d.pino);
|
|
newnode.d.version = cnv_e32 (node->d.version);
|
|
newnode.d.ino = cnv_e32 (node->d.ino);
|
|
newnode.d.mctime = cnv_e32 (node->d.mctime);
|
|
newnode.d.nsize = node->d.nsize;
|
|
newnode.d.type = node->d.type;
|
|
newnode.d.unused[0] = node->d.unused[0];
|
|
newnode.d.unused[1] = node->d.unused[1];
|
|
newnode.d.node_crc = cpu_to_e32 (mtd_crc32 (0, &newnode, sizeof (struct jffs2_raw_dirent) - 8));
|
|
if (recalccrc)
|
|
newnode.d.name_crc = cpu_to_e32 ( mtd_crc32(0, p + sizeof (struct jffs2_raw_dirent), node->d.nsize));
|
|
else
|
|
newnode.d.name_crc = cnv_e32 (node->d.name_crc);
|
|
|
|
write (fd, &newnode, sizeof (struct jffs2_raw_dirent));
|
|
write (fd, p + sizeof (struct jffs2_raw_dirent), PAD (je32_to_cpu (node->d.totlen) - sizeof (struct jffs2_raw_dirent)));
|
|
p += PAD(je32_to_cpu (node->d.totlen));
|
|
break;
|
|
|
|
case JFFS2_NODETYPE_CLEANMARKER:
|
|
case JFFS2_NODETYPE_PADDING:
|
|
newnode.u.magic = cnv_e16 (node->u.magic);
|
|
newnode.u.nodetype = cnv_e16 (node->u.nodetype);
|
|
newnode.u.totlen = cnv_e32 (node->u.totlen);
|
|
newnode.u.hdr_crc = cpu_to_e32 (mtd_crc32 (0, &newnode, sizeof (struct jffs2_unknown_node) - 4));
|
|
|
|
write (fd, &newnode, sizeof (struct jffs2_unknown_node));
|
|
len = PAD(je32_to_cpu (node->u.totlen) - sizeof (struct jffs2_unknown_node));
|
|
if (len > 0)
|
|
write (fd, p + sizeof (struct jffs2_unknown_node), len);
|
|
|
|
p += PAD(je32_to_cpu (node->u.totlen));
|
|
break;
|
|
|
|
case JFFS2_NODETYPE_SUMMARY : {
|
|
struct jffs2_sum_marker *sm_ptr;
|
|
int i,sum_len;
|
|
int counter = 0;
|
|
|
|
newnode.s.magic = cnv_e16 (node->s.magic);
|
|
newnode.s.nodetype = cnv_e16 (node->s.nodetype);
|
|
newnode.s.totlen = cnv_e32 (node->s.totlen);
|
|
newnode.s.hdr_crc = cpu_to_e32 (mtd_crc32 (0, &newnode, sizeof (struct jffs2_unknown_node) - 4));
|
|
newnode.s.sum_num = cnv_e32 (node->s.sum_num);
|
|
newnode.s.cln_mkr = cnv_e32 (node->s.cln_mkr);
|
|
newnode.s.padded = cnv_e32 (node->s.padded);
|
|
|
|
newnode.s.node_crc = cpu_to_e32 (mtd_crc32 (0, &newnode, sizeof (struct jffs2_raw_summary) - 8));
|
|
|
|
// summary header
|
|
p += sizeof (struct jffs2_raw_summary);
|
|
|
|
// summary data
|
|
sum_len = je32_to_cpu (node->s.totlen) - sizeof (struct jffs2_raw_summary) - sizeof (struct jffs2_sum_marker);
|
|
|
|
for (i=0; i<je32_to_cpu (node->s.sum_num); i++) {
|
|
union jffs2_sum_flash *fl_ptr;
|
|
|
|
fl_ptr = (union jffs2_sum_flash *) p;
|
|
|
|
switch (je16_to_cpu (fl_ptr->u.nodetype)) {
|
|
case JFFS2_NODETYPE_INODE:
|
|
|
|
fl_ptr->i.nodetype = cnv_e16 (fl_ptr->i.nodetype);
|
|
fl_ptr->i.inode = cnv_e32 (fl_ptr->i.inode);
|
|
fl_ptr->i.version = cnv_e32 (fl_ptr->i.version);
|
|
fl_ptr->i.offset = cnv_e32 (fl_ptr->i.offset);
|
|
fl_ptr->i.totlen = cnv_e32 (fl_ptr->i.totlen);
|
|
p += sizeof (struct jffs2_sum_inode_flash);
|
|
counter += sizeof (struct jffs2_sum_inode_flash);
|
|
break;
|
|
|
|
case JFFS2_NODETYPE_DIRENT:
|
|
fl_ptr->d.nodetype = cnv_e16 (fl_ptr->d.nodetype);
|
|
fl_ptr->d.totlen = cnv_e32 (fl_ptr->d.totlen);
|
|
fl_ptr->d.offset = cnv_e32 (fl_ptr->d.offset);
|
|
fl_ptr->d.pino = cnv_e32 (fl_ptr->d.pino);
|
|
fl_ptr->d.version = cnv_e32 (fl_ptr->d.version);
|
|
fl_ptr->d.ino = cnv_e32 (fl_ptr->d.ino);
|
|
p += sizeof (struct jffs2_sum_dirent_flash) + fl_ptr->d.nsize;
|
|
counter += sizeof (struct jffs2_sum_dirent_flash) + fl_ptr->d.nsize;
|
|
break;
|
|
|
|
default :
|
|
printf("Unknown node in summary information!!! nodetype(%x)\n", je16_to_cpu (fl_ptr->u.nodetype));
|
|
exit(EXIT_FAILURE);
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
//pad
|
|
p += sum_len - counter;
|
|
|
|
// summary marker
|
|
sm_ptr = (struct jffs2_sum_marker *) p;
|
|
sm_ptr->offset = cnv_e32 (sm_ptr->offset);
|
|
sm_ptr->magic = cnv_e32 (sm_ptr->magic);
|
|
p += sizeof (struct jffs2_sum_marker);
|
|
|
|
// generate new crc on sum data
|
|
newnode.s.sum_crc = cpu_to_e32 ( mtd_crc32(0, ((char *) node) + sizeof (struct jffs2_raw_summary),
|
|
je32_to_cpu (node->s.totlen) - sizeof (struct jffs2_raw_summary)));
|
|
|
|
// write out new node header
|
|
write(fd, &newnode, sizeof (struct jffs2_raw_summary));
|
|
// write out new summary data
|
|
write(fd, &node->s.sum, sum_len + sizeof (struct jffs2_sum_marker));
|
|
|
|
break;
|
|
}
|
|
|
|
case 0xffff:
|
|
write (fd, p, 4);
|
|
p += 4;
|
|
break;
|
|
|
|
default:
|
|
printf ("Unknown node type: 0x%04x at 0x%08zx, totlen 0x%08x\n", je16_to_cpu (node->u.nodetype), p - data, je32_to_cpu (node->u.totlen));
|
|
p += PAD(je32_to_cpu (node->u.totlen));
|
|
|
|
}
|
|
}
|
|
|
|
close (fd);
|
|
|
|
}
|
|
|
|
/*
|
|
* Main program
|
|
*/
|
|
int main(int argc, char **argv)
|
|
{
|
|
int fd;
|
|
|
|
process_options(argc, argv);
|
|
|
|
/* Open the input file */
|
|
if ((fd = open(img, O_RDONLY)) == -1) {
|
|
perror("open input file");
|
|
exit(1);
|
|
}
|
|
|
|
// get image length
|
|
imglen = lseek(fd, 0, SEEK_END);
|
|
lseek (fd, 0, SEEK_SET);
|
|
|
|
data = malloc (imglen);
|
|
if (!data) {
|
|
perror("out of memory");
|
|
close (fd);
|
|
exit(1);
|
|
}
|
|
|
|
if (datsize && oobsize) {
|
|
int idx = 0;
|
|
long len = imglen;
|
|
uint8_t oob[oobsize];
|
|
printf ("Peeling data out of combined data/oob image\n");
|
|
while (len) {
|
|
// read image data
|
|
read (fd, &data[idx], datsize);
|
|
read (fd, oob, oobsize);
|
|
idx += datsize;
|
|
imglen -= oobsize;
|
|
len -= datsize + oobsize;
|
|
}
|
|
|
|
} else {
|
|
// read image data
|
|
read (fd, data, imglen);
|
|
}
|
|
// Close the input file
|
|
close(fd);
|
|
|
|
if (dumpcontent)
|
|
do_dumpcontent ();
|
|
|
|
if (convertendian)
|
|
do_endianconvert ();
|
|
|
|
// free memory
|
|
free (data);
|
|
|
|
// Return happy
|
|
exit (0);
|
|
}
|