mtd-utils: Restructure the mtd-utils source.

* There is no code modification in this commit, only moving
* the files to proper place.

The user tools looks a little messy as we place almost
the all tools in the root directory of mtd-utils. To make
it more clear, I propose to introduce the following structure
for our source code.

mtd-utils/
	|-- lib
	|-- include
	|-- misc-utils
	|-- jffsX-utils
	|-- nand-utils
	|-- nor-utils
	|-- ubi-utils
	|-- ubifs-utils
	`-- tests

Signed-off-by: Dongsheng Yang <yangds.fnst@cn.fujitsu.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

1 files changed, 805 insertions, 0 deletions

diff --git a/jffsX-utils/jffs2dump.c b/jffsX-utils/jffs2dump.c
new file mode 100644
index 0000000..f8b8ac7
--- /dev/null
+++ b/jffsX-utils/jffs2dump.c
@@ -0,0 +1,805 @@
+/*
+ *  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_XATTR:
+				memcpy(name, node->x.data, node->x.name_len);
+				name[node->x.name_len] = '\x00';
+				printf ("%8s Xattr      node at 0x%08zx, totlen 0x%08x, xid   %5d, version %5d, name_len   %3d, name %s\n",
+						obsolete ? "Obsolete" : "",
+						p - data,
+						je32_to_cpu (node->x.totlen),
+						je32_to_cpu (node->x.xid),
+						je32_to_cpu (node->x.version),
+						node->x.name_len,
+						name);
+
+				crc = mtd_crc32 (0, node, sizeof (struct jffs2_raw_xattr) - sizeof (node->x.node_crc));
+				if (crc != je32_to_cpu (node->x.node_crc)) {
+					printf ("Wrong node_crc at  0x%08zx, 0x%08x instead of 0x%08x\n", p - data, je32_to_cpu (node->x.node_crc), crc);
+					p += PAD(je32_to_cpu (node->x.totlen));
+					dirty += PAD(je32_to_cpu (node->x.totlen));
+					continue;
+				}
+
+				crc = mtd_crc32 (0, p + sizeof (struct jffs2_raw_xattr), node->x.name_len + je16_to_cpu (node->x.value_len) + 1);
+				if (crc != je32_to_cpu (node->x.data_crc)) {
+					printf ("Wrong data_crc at  0x%08zx, 0x%08x instead of 0x%08x\n", p - data, je32_to_cpu (node->x.data_crc), crc);
+					p += PAD(je32_to_cpu (node->x.totlen));
+					dirty += PAD(je32_to_cpu (node->x.totlen));
+					continue;
+				}
+				p += PAD(je32_to_cpu (node->x.totlen));
+				break;
+
+			case JFFS2_NODETYPE_XREF:
+				printf ("%8s Xref       node at 0x%08zx, totlen 0x%08x, xid   %5d, xseqno  %5d, #ino  %8d\n",
+						obsolete ? "Obsolete" : "",
+						p - data,
+						je32_to_cpu (node->r.totlen),
+						je32_to_cpu (node->r.xid),
+						je32_to_cpu (node->r.xseqno),
+						je32_to_cpu (node->r.ino));
+				p += PAD(je32_to_cpu (node->r.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;
+																					  }
+
+														 case JFFS2_NODETYPE_XATTR : {
+																						  struct jffs2_sum_xattr_flash *spx;
+																						  spx = sp;
+																						  printf ("%14s Xattr  offset 0x%08x, totlen 0x%08x, version %5d, #xid %8d\n",
+																								  "",
+																								  je32_to_cpu (spx->offset),
+																								  je32_to_cpu (spx->totlen),
+																								  je32_to_cpu (spx->version),
+																								  je32_to_cpu (spx->xid));
+																						  sp += JFFS2_SUMMARY_XATTR_SIZE;
+																						  break;
+																					  }
+
+														 case JFFS2_NODETYPE_XREF : {
+																						  struct jffs2_sum_xref_flash *spr;
+																						  spr = sp;
+																						  printf ("%14s Xref   offset 0x%08x\n",
+																								  "",
+																								  je32_to_cpu (spr->offset));
+																						  sp += JFFS2_SUMMARY_XREF_SIZE;
+																						  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_XATTR:
+				newnode.x.magic = cnv_e16 (node->x.magic);
+				newnode.x.nodetype = cnv_e16 (node->x.nodetype);
+				newnode.x.totlen = cnv_e32 (node->x.totlen);
+				newnode.x.hdr_crc = cpu_to_e32 (mtd_crc32 (0, &newnode, sizeof (struct jffs2_unknown_node) - 4));
+				newnode.x.xid = cnv_e32 (node->x.xid);
+				newnode.x.version = cnv_e32 (node->x.version);
+				newnode.x.xprefix = node->x.xprefix;
+				newnode.x.name_len = node->x.name_len;
+				newnode.x.value_len = cnv_e16 (node->x.value_len);
+				if (recalccrc)
+					newnode.x.data_crc = cpu_to_e32 (mtd_crc32 (0, p + sizeof (struct jffs2_raw_xattr), node->x.name_len + je16_to_cpu (node->x.value_len) + 1));
+				else
+					newnode.x.data_crc = cnv_e32 (node->x.data_crc);
+				newnode.x.node_crc = cpu_to_e32 (mtd_crc32 (0, &newnode, sizeof (struct jffs2_raw_xattr) - sizeof (newnode.x.node_crc)));
+
+				write (fd, &newnode, sizeof (struct jffs2_raw_xattr));
+				write (fd, p + sizeof (struct jffs2_raw_xattr), PAD (je32_to_cpu (node->d.totlen) -  sizeof (struct jffs2_raw_xattr)));
+				p += PAD(je32_to_cpu (node->x.totlen));
+				break;
+
+			case JFFS2_NODETYPE_XREF:
+				newnode.r.magic = cnv_e16 (node->r.magic);
+				newnode.r.nodetype = cnv_e16 (node->r.nodetype);
+				newnode.r.totlen = cnv_e32 (node->r.totlen);
+				newnode.r.hdr_crc = cpu_to_e32 (mtd_crc32 (0, &newnode, sizeof (struct jffs2_unknown_node) - sizeof (newnode.r.hdr_crc)));
+				newnode.r.ino = cnv_e32 (node->r.ino);
+				newnode.r.xid = cnv_e32 (node->r.xid);
+				newnode.r.xseqno = cnv_e32 (node->r.xseqno);
+				newnode.r.node_crc = cpu_to_e32 (mtd_crc32 (0, &newnode, sizeof (struct jffs2_raw_xref) - sizeof (newnode.r.node_crc)));
+				p += PAD(je32_to_cpu (node->x.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;
+
+													  case JFFS2_NODETYPE_XATTR:
+														  fl_ptr->x.nodetype = cnv_e16 (fl_ptr->x.nodetype);
+														  fl_ptr->x.xid = cnv_e32 (fl_ptr->x.xid);
+														  fl_ptr->x.version = cnv_e32 (fl_ptr->x.version);
+														  fl_ptr->x.offset = cnv_e32 (fl_ptr->x.offset);
+														  fl_ptr->x.totlen = cnv_e32 (fl_ptr->x.totlen);
+														  p += sizeof (struct jffs2_sum_xattr_flash);
+														  counter += sizeof (struct jffs2_sum_xattr_flash);
+														  break;
+
+													  case JFFS2_NODETYPE_XREF:
+														  fl_ptr->r.nodetype = cnv_e16 (fl_ptr->r.nodetype);
+														  fl_ptr->r.offset = cnv_e32 (fl_ptr->r.offset);
+														  p += sizeof (struct jffs2_sum_xref_flash);
+														  counter += sizeof (struct jffs2_sum_xref_flash);
+														  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);
+}