From: Mike Baker <mbm@openwrt.org>
Date: Thu, 10 May 2007 14:37:47 +0000 (+0000)
Subject: unified preinit environment
X-Git-Tag: reboot~29270
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=4a41439c46022840555c3c16c30324b5760c07e2;p=openwrt%2Fstaging%2Flynxis.git

unified preinit environment

SVN-Revision: 7173
---

diff --git a/package/base-files/files/bin/firstboot b/package/base-files/files/bin/firstboot
index ef2ba5733b..267e6732d9 100755
--- a/package/base-files/files/bin/firstboot
+++ b/package/base-files/files/bin/firstboot
@@ -79,8 +79,6 @@ ramoverlay() {
 	}
 
 	[ "$1" = "switch2jffs" ] && {
-		mtd erase "$partname"
-
 		# try to avoid fs changing while copying
 		mount -o remount,ro none / 2>&-
 
@@ -103,8 +101,6 @@ ramoverlay() {
 		# this will almost always fail
 		umount /tmp/root 2>&-
 
-		# fs is clean
-		jffs2root --clean
 		exit 0
 	}
 
diff --git a/package/base-files/files/etc/diag.sh b/package/base-files/files/etc/diag.sh
new file mode 100644
index 0000000000..7ecb7330ff
--- /dev/null
+++ b/package/base-files/files/etc/diag.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+# Copyright (C) 2006 OpenWrt.org
+
+set_state() {
+}
diff --git a/package/base-files/files/etc/init.d/done b/package/base-files/files/etc/init.d/done
new file mode 100755
index 0000000000..0640b61938
--- /dev/null
+++ b/package/base-files/files/etc/init.d/done
@@ -0,0 +1,15 @@
+#!/bin/sh /etc/rc.common
+# Copyright (C) 2006 OpenWrt.org
+
+START=95
+boot() {
+	[ -d /tmp/root ] && {
+		lock /tmp/.switch2jffs
+		firstboot switch2jffs
+		lock -u /tmp/.switch2jffs
+	}
+
+	# set leds to normal state
+	. /etc/diag.sh
+	set_state done
+}
diff --git a/package/base-files/files/etc/preinit b/package/base-files/files/etc/preinit
index c60a0f850f..b23508f552 100755
--- a/package/base-files/files/etc/preinit
+++ b/package/base-files/files/etc/preinit
@@ -1,6 +1,20 @@
 #!/bin/sh
 # Copyright (C) 2006 OpenWrt.org
 export PATH=/bin:/sbin:/usr/bin:/usr/sbin
+. /etc/diag.sh
+
+failsafe() {
+	lock /tmp/.failsafe
+	ash --login
+}
+
 [ -e /etc/preinit.arch ] && . /etc/preinit.arch
+
+set_state preinit
+
 mount_root ${FAILSAFE:+failsafe}
+
+eval ${FAILSAFE:+failsafe}
+lock -w /tmp/.failsafe
+
 exec /sbin/init
diff --git a/package/base-files/files/sbin/mount_root b/package/base-files/files/sbin/mount_root
index 607c799682..a783f3d8ff 100755
--- a/package/base-files/files/sbin/mount_root
+++ b/package/base-files/files/sbin/mount_root
@@ -3,9 +3,10 @@
 . /etc/functions.sh
 
 mount none /proc -t proc
-size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
 
+size=$(awk '/MemTotal:/ {l=5242880;mt=($2*1024);print((s=mt/2)<l)?mt-l:s}' /proc/meminfo)
 mount none /tmp -t tmpfs -o size=$size,nosuid,nodev,mode=1777
+
 if grep devfs /proc/filesystems >/dev/null; then
 	mount none /dev -t devfs
 else
@@ -13,7 +14,9 @@ else
 	mknod /dev/console c 5 1
 	exec >/dev/console </dev/console 2>&1
 fi
+
 mkdir /dev/shm
+
 if grep sysfs /proc/filesystems >/dev/null; then
 	mount -t sysfs none /sys
 	HOTPLUG=""
@@ -27,14 +30,25 @@ echo "$HOTPLUG" > /proc/sys/kernel/hotplug
 mkdir -p /dev/pts
 mount none /dev/pts -t devpts
 
+jffs2_ready () {
+	mtdpart="$(find_mtd_part rootfs_data)"
+	magic=$(hexdump $mtdpart -n 4 -e '4/1 "%02x"')
+	[ "$magic" != "deadc0de" ]
+}
+
 [ failsafe != "$1" ] && {
 	grep rootfs /proc/mtd >/dev/null 2>/dev/null && {
 		mtd unlock rootfs
 		grep rootfs_data /proc/mtd >/dev/null 2>/dev/null && {
 			. /bin/firstboot
-			echo "switching to jffs2"
-			mount "$(find_mtd_part rootfs_data)" /jffs -t jffs2
-			fopivot /jffs /rom
+			jffs2_ready && {
+				echo "switching to jffs2"
+				mount "$(find_mtd_part rootfs_data)" /jffs -t jffs2
+				fopivot /jffs /rom
+			} || {
+				echo "jffs2 not ready yet; using ramdisk"
+				ramoverlay
+			}
 		}
 	} || mount -o remount,rw /dev/root /
 }
diff --git a/target/linux/ar7-2.6/base-files/default/etc/init.d/done b/target/linux/ar7-2.6/base-files/default/etc/init.d/done
deleted file mode 100755
index 9cd641d7c3..0000000000
--- a/target/linux/ar7-2.6/base-files/default/etc/init.d/done
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/sh /etc/rc.common
-# Copyright (C) 2007 OpenWrt.org
-
-START=95
-boot() {
-	# set leds to normal state
-	. /etc/diag.sh
-	set_state done
-}
diff --git a/target/linux/au1000-2.6/base-files/default/etc/init.d/done b/target/linux/au1000-2.6/base-files/default/etc/init.d/done
deleted file mode 100755
index 9cd641d7c3..0000000000
--- a/target/linux/au1000-2.6/base-files/default/etc/init.d/done
+++ /dev/null
@@ -1,9 +0,0 @@
-#!/bin/sh /etc/rc.common
-# Copyright (C) 2007 OpenWrt.org
-
-START=95
-boot() {
-	# set leds to normal state
-	. /etc/diag.sh
-	set_state done
-}
diff --git a/target/linux/au1000-2.6/base-files/default/etc/preinit.arch b/target/linux/au1000-2.6/base-files/default/etc/preinit.arch
deleted file mode 100755
index bff7ccedfc..0000000000
--- a/target/linux/au1000-2.6/base-files/default/etc/preinit.arch
+++ /dev/null
@@ -1,3 +0,0 @@
-. /etc/diag.sh
-set_state preinit
-
diff --git a/target/linux/brcm-2.4/base-files.mk b/target/linux/brcm-2.4/base-files.mk
index 9a2e365b67..6191cb2562 100644
--- a/target/linux/brcm-2.4/base-files.mk
+++ b/target/linux/brcm-2.4/base-files.mk
@@ -1,12 +1,9 @@
 define Build/Compile
 	$(call Build/Compile/Default)
-	$(TARGET_CC) -I $(PLATFORM_DIR)/src -o $(PKG_BUILD_DIR)/jffs2root $(PLATFORM_DIR)/src/jffs2root.c
 endef
 
 define Package/base-files/install-target
 	rm -f $(1)/etc/config/network
-	mkdir -p $(1)/sbin
-	$(CP) $(PKG_BUILD_DIR)/jffs2root $(1)/sbin
 endef
 
 
diff --git a/target/linux/brcm-2.4/base-files/default/bin/firstboot b/target/linux/brcm-2.4/base-files/default/bin/firstboot
deleted file mode 100755
index 5d374371c0..0000000000
--- a/target/linux/brcm-2.4/base-files/default/bin/firstboot
+++ /dev/null
@@ -1,128 +0,0 @@
-#!/bin/sh
-# $Id$
-. /etc/functions.sh
-
-partname="rootfs_data"
-mtdpart="$(find_mtd_part $partname)"
-
-rom=$(awk '/squashfs/ {print $2}' /proc/mounts)
-jffs=$(awk '/jffs2/ {print $2}' /proc/mounts)
-
-dupe() { # <new_root> <old_root>
-	cd $1
-	echo -n "creating directories... "
-	{
-		cd $2 
-		find . -xdev -type d
-		echo "./dev ./jffs ./mnt ./proc ./tmp"
-		# xdev skips mounted directories
-		cd $1 
-	} | xargs mkdir -p
-	echo "done"
-
-	echo -n "setting up symlinks... "
-	for file in $(cd $2; find . -xdev -type f;); do
-		case "$file" in
-		./rom/note) ;; #nothing
-		./etc/config*|\
-		./usr/lib/ipkg/info/*) cp -af $2/$file $file;;
-		*) ln -sf /rom/${file#./*} $file;;
-		esac
-	done
-	for file in $(cd $2; find . -xdev -type l;); do
-		cp -af $2/${file#./*} $file
-	done
-	echo "done"
-}
-
-pivot() { # <new_root> <old_root>
-	mount -o move /proc $1/proc && \
-	pivot_root $1 $1$2 && {
-		mount -o move $2/dev /dev
-		mount -o move $2/tmp /tmp
-		mount -o move $2/jffs /jffs 2>&-
-		return 0
-	}
-}
-
-fopivot() { # <rw_root> <ro_root> <dupe?>
-	root=$1
-	{
-		mount -t mini_fo -o base=/,sto=$1 $1 /mnt 2>&- && root=/mnt
-	} || {
-		[ "$3" = "1" ] && {
-		mount | grep "on $1 type" 2>&- 1>&- || mount -o bind $1 $1
-		dupe $1 $rom
-		}
-	}
-	pivot $root $2
-}
-
-ramoverlay() {
-	mkdir -p /tmp/root
-	fopivot /tmp/root /rom 1
-}
-
-# invoked as an executable
-[ "${0##*/}" = "firstboot" ] && {
-
-	[ -z "$mtdpart" ] && {
-		echo "MTD partition not found."
-		exit 1
-	}
-
-	[ -z "$rom" ] && {
-		echo "You do not have a squashfs partition; aborting"
-		echo "(firstboot cannot be run on jffs2 based firmwares)"
-		exit 1
-	}
-
-	[ "$1" = "switch2jffs" ] && {
-		mtd erase "$partname"
-
-		# try to avoid fs changing while copying
-		mount -o remount,ro none / 2>&-
-
-		# copy ramoverlay to jffs2
-		mount "$mtdpart" /rom/jffs -t jffs2
-		echo -n "copying files ... "
-		cp -a /tmp/root/* /rom/jffs 2>&-
-		echo "done"
-
-		# switch back to squashfs (temporarily)
-		# and park the ramdisk ontop of /tmp/root
-		pivot /rom /mnt
-		mount -o move /mnt /tmp/root
-
-		# /jffs is the overlay
-		# /rom is the readonly
-		fopivot /jffs /rom
-
-		# try to get rid of /tmp/root
-		# this will almost always fail
-		umount /tmp/root 2>&-
-
-		# fs is clean
-		jffs2root --clean
-		exit 0
-	}
-
-	# script run manually
-	[ \! -z "$jffs" ] && {
-		echo "firstboot has already been run"
-		echo "jffs2 partition is mounted, only resetting files"
-		grep mini_fo /proc/filesystems >&-
-		[ $? != 0 ] && {
-			dupe $jffs $rom
-			exit 0
-		} || { 
-			rm -rf $jffs/* 2>&-
-			mount -o remount $jffs / 2>&-
-			exit 0
-		}
-	}
-
-	mtd erase "$partname"
-	mount "$mtdpart" /jffs -t jffs2
-	fopivot /jffs /rom 1
-}
diff --git a/target/linux/brcm-2.4/base-files/default/etc/init.d/done b/target/linux/brcm-2.4/base-files/default/etc/init.d/done
deleted file mode 100755
index 0640b61938..0000000000
--- a/target/linux/brcm-2.4/base-files/default/etc/init.d/done
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/bin/sh /etc/rc.common
-# Copyright (C) 2006 OpenWrt.org
-
-START=95
-boot() {
-	[ -d /tmp/root ] && {
-		lock /tmp/.switch2jffs
-		firstboot switch2jffs
-		lock -u /tmp/.switch2jffs
-	}
-
-	# set leds to normal state
-	. /etc/diag.sh
-	set_state done
-}
diff --git a/target/linux/brcm-2.4/base-files/default/etc/preinit b/target/linux/brcm-2.4/base-files/default/etc/preinit
deleted file mode 100755
index 7a61c9412e..0000000000
--- a/target/linux/brcm-2.4/base-files/default/etc/preinit
+++ /dev/null
@@ -1,96 +0,0 @@
-#!/bin/sh
-# Copyright (C) 2006 OpenWrt.org
-
-. /etc/functions.sh
-. /etc/diag.sh
-
-failsafe() {
-	lock /tmp/.failsafe
-
-	echo "0 1 2 3 4 5u*" > /proc/switch/eth0/vlan/0/ports
-	
-	set_state failsafe
-	[ -x "/usr/sbin/nvram" ] && {
-		[ "$(nvram get boot_wait)" != "on" ] && {
-			nvram set boot_wait=on
-			nvram commit
-		}
-	}
-
-	netmsg 192.168.1.255 "Entering Failsafe!"
-	telnetd -l /bin/login <> /dev/null 2>&1
-
-	ash --login
-}
-
-export PATH=/bin:/sbin:/usr/bin:/usr/sbin
-mount none /proc -t proc
-size=$(awk '/Mem:/ {l=5242880;print((s=$2/2)<l)?$2-l:s}' /proc/meminfo)
-mount none /tmp -t tmpfs -o size=$size
-if grep devfs /proc/filesystems > /dev/null; then
-	mount none /dev -t devfs
-	M0=/dev/pty/m0
-	M1=/dev/pty/m1
-	HOTPLUG=/sbin/hotplug-call
-else
-	mount -t sysfs none /sys
-	mount -t tmpfs tmpfs /dev -o size=512K
-	mknod /dev/console c 5 1
-	mkdir /dev/shm
-	/sbin/hotplug2 --no-persistent --coldplug --set-rules-file /etc/hotplug2-init.rules
-	M0=/dev/ptmx
-	M1=/dev/ptmx
-	HOTPLUG=
-fi
-mkdir -p /dev/pts
-mount none /dev/pts -t devpts
-
-# the shell really doesn't like having stdin/out closed
-# that's why we use /dev/pty/m0 and m1 as replacement
-# for /dev/console if there's no serial console available
-dd if=/dev/console of=/dev/null bs=1 count=0 >/dev/null 2>/dev/null || \
-	exec <$M0 >$M1 2>&0
-
-insmod diag
-set_state preinit
-trap 'FAILSAFE=true' USR1
-echo '/sbin/hotplug.failsafe' > /proc/sys/kernel/hotplug
-
-ifname=eth0
-
-# hardware specific overrides
-case "$(cat /proc/diag/model)" in
-	"Linksys WAP54G V1") ifname=eth1;;
-	"ASUS WL-HDD") ifname=eth1;;
-	"ASUS WL-300g") ifname=eth1;;
-	"ASUS (unknown, BCM4702)") ifname=eth1;;
-esac
-
-ifconfig $ifname 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255 up
-
-insmod switch-core
-insmod switch-robo || insmod switch-adm || rmmod switch-core
-
-[ -d /proc/switch/eth0 ] && {
-	echo 1 > /proc/switch/eth0/reset
-
-	# this would be easier if we blasted the message across all ports
-	# but we don't want packets leaking across interfaces
-	for port in $(seq 0 4); do {
-		echo "$port 5u*" > /proc/switch/eth0/vlan/0/ports
-		netmsg 192.168.1.255 "Press reset now, to enter Failsafe!"
-	}; done
-} || netmsg 192.168.1.255 "Press reset now, to enter Failsafe!"
-
-sleep 2
-
-eval ${FAILSAFE:+failsafe}
-
-lock -w /tmp/.failsafe
-set_state preinit
-echo "$HOTPLUG" > /proc/sys/kernel/hotplug
-
-ifconfig $ifname 0.0.0.0 down
-
-mount_root
-exec /sbin/init
diff --git a/target/linux/brcm-2.4/base-files/default/etc/preinit.arch b/target/linux/brcm-2.4/base-files/default/etc/preinit.arch
new file mode 100755
index 0000000000..d3a0bfc491
--- /dev/null
+++ b/target/linux/brcm-2.4/base-files/default/etc/preinit.arch
@@ -0,0 +1,87 @@
+. /etc/functions.sh
+
+failsafe_ip() {
+	ifconfig $ifname 192.168.1.1 netmask 255.255.255.0 broadcast 192.168.1.255 up
+}
+
+failsafe() {
+	lock /tmp/.failsafe
+	failsafe_ip
+
+	echo "0 1 2 3 4 5u*" > /proc/switch/eth0/vlan/0/ports
+	
+	set_state failsafe
+	[ -x "/usr/sbin/nvram" ] && {
+		[ "$(nvram get boot_wait)" != "on" ] && {
+			nvram set boot_wait=on
+			nvram commit
+		}
+	}
+
+	netmsg 192.168.1.255 "Entering Failsafe!"
+	telnetd -l /bin/login <> /dev/null 2>&1
+
+	ash --login
+}
+
+mount none /proc -t proc
+
+if grep devfs /proc/filesystems > /dev/null; then
+	mount none /dev -t devfs
+	M0=/dev/pty/m0
+	M1=/dev/pty/m1
+	HOTPLUG=/sbin/hotplug-call
+else
+	mount -t sysfs none /sys
+	mount -t tmpfs tmpfs /dev -o size=512K
+	mknod /dev/console c 5 1
+	mkdir /dev/shm
+	/sbin/hotplug2 --no-persistent --coldplug --set-rules-file /etc/hotplug2-init.rules
+	M0=/dev/ptmx
+	M1=/dev/ptmx
+	HOTPLUG=
+fi
+mkdir -p /dev/pts
+mount none /dev/pts -t devpts
+
+# the shell really doesn't like having stdin/out closed
+# that's why we use /dev/pty/m0 and m1 as replacement
+# for /dev/console if there's no serial console available
+dd if=/dev/console of=/dev/null bs=1 count=0 >/dev/null 2>/dev/null || \
+	exec <$M0 >$M1 2>&0
+
+insmod diag
+set_state preinit
+trap 'FAILSAFE=true' USR1
+echo '/sbin/hotplug.failsafe' > /proc/sys/kernel/hotplug
+
+ifname=eth0
+
+# hardware specific overrides
+case "$(cat /proc/diag/model)" in
+	"Linksys WAP54G V1") ifname=eth1;;
+	"ASUS WL-HDD") ifname=eth1;;
+	"ASUS WL-300g") ifname=eth1;;
+	"ASUS (unknown, BCM4702)") ifname=eth1;;
+esac
+
+failsafe_ip
+
+insmod switch-core
+insmod switch-robo || insmod switch-adm || rmmod switch-core
+
+[ -d /proc/switch/eth0 ] && {
+	echo 1 > /proc/switch/eth0/reset
+
+	# this would be easier if we blasted the message across all ports
+	# but we don't want packets leaking across interfaces
+	for port in $(seq 0 4); do {
+		echo "$port 5u*" > /proc/switch/eth0/vlan/0/ports
+		netmsg 192.168.1.255 "Press reset now, to enter Failsafe!"
+	}; done
+} || netmsg 192.168.1.255 "Press reset now, to enter Failsafe!"
+
+sleep 2
+echo "$HOTPLUG" > /proc/sys/kernel/hotplug
+
+ifconfig $ifname 0.0.0.0 down
diff --git a/target/linux/brcm-2.4/base-files/default/sbin/mount_root b/target/linux/brcm-2.4/base-files/default/sbin/mount_root
deleted file mode 100755
index a9dd2764dd..0000000000
--- a/target/linux/brcm-2.4/base-files/default/sbin/mount_root
+++ /dev/null
@@ -1,29 +0,0 @@
-#!/bin/sh
-# Copyright (C) 2006 OpenWrt.org
-. /etc/functions.sh
-
-is_dirty() {
-	mtdpart="$(find_mtd_part linux)"
-	grep Broadcom /proc/cpuinfo >&- || return 1
-	OFFSET="$(($(hexdump -v $mtdpart -s 20 -n 2 -e '"%d"')-1))"
-	return $(hexdump -v $mtdpart -s $OFFSET -n 1 -e '"%d"')
-}
-
-if [ "$1" != "failsafe" ]; then 
-	mtd unlock linux
-	mount | grep jffs2 >&-
-	if [ $? = 0 ] ; then
-		mount -o remount,rw /dev/root /
-	else
-		. /bin/firstboot
-		is_dirty 
-		[ $? != 0 ] && {
-			echo "switching to jffs2"
-			mount $(find_mtd_part rootfs_data) /jffs -t jffs2
-			fopivot /jffs /rom
-		} || {
-			echo "jffs2 not ready yet; using ramdisk"
-			ramoverlay
-		}
-	fi
-fi
diff --git a/target/linux/brcm-2.4/image/Makefile b/target/linux/brcm-2.4/image/Makefile
index 41bd1c89cd..6515d134c8 100644
--- a/target/linux/brcm-2.4/image/Makefile
+++ b/target/linux/brcm-2.4/image/Makefile
@@ -50,7 +50,12 @@ define trxalign/squashfs
 -a 1024
 endef
 
+define Image/Build/squashfs
+    $(call prepare_generic_squashfs,$(KDIR)/root.squashfs)
+endef
+
 define Image/Build
+	$(call Image/Build/$(1))
 	$(STAGING_DIR)/bin/trx -o $(BIN_DIR)/openwrt-$(BOARD)-$(KERNEL)-$(1).trx -f $(KDIR)/loader.gz -f $(KDIR)/vmlinux.lzma $(call trxalign/$(1)) -f $(KDIR)/root.$(1)
 ifneq ($(1),jffs2-128k)
 	$(call Image/Build/CyberTAN,$(1),wrt54g3g,W54F,2.01.1,$(patsubst jffs2-%,jffs2,$(1)))
diff --git a/target/linux/brcm-2.4/src/jffs2root.c b/target/linux/brcm-2.4/src/jffs2root.c
deleted file mode 100644
index 0afca57472..0000000000
--- a/target/linux/brcm-2.4/src/jffs2root.c
+++ /dev/null
@@ -1,138 +0,0 @@
-/*
- * jffs2root.c
- *
- * Copyright (C) 2005 Mike Baker 
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version 2
- * of the License, or (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
- *
- * $Id$
- *
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <stddef.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/mman.h>
-#include <sys/stat.h>
-#include <string.h>
-
-#include <sys/ioctl.h>
-#include "mtd.h"
-
-struct trx_header {
-	unsigned magic;		/* "HDR0" */
-	unsigned len;		/* Length of file including header */
-	unsigned crc32;		/* 32-bit CRC from flag_version to end of file */
-	unsigned flag_version;	/* 0:15 flags, 16:31 version */
-	unsigned offsets[3];	/* Offsets of partitions from start of header */
-};
-
-unsigned long *crc32;
-
-void init_crc32()
-{
-	unsigned long crc;
-	unsigned long poly = 0xEDB88320L;
-	int n, bit;
-	if ((crc32 = (unsigned long *) malloc(256 * sizeof(unsigned long))) == (void *)-1) {
-		perror("malloc");
-		exit(1);
-	}
-	for (n = 0; n < 256; n++) {
-	crc = (unsigned long) n;
-	for (bit = 0; bit < 8; bit++)
-		crc = (crc & 1) ? (poly ^ (crc >> 1)) : (crc >> 1);
-	crc32[n] = crc;
-	}
-}
-
-unsigned int crc32buf(char *buf, size_t len)
-{
-	unsigned int crc = 0xFFFFFFFF;
-	for (; len; len--, buf++)
-	crc = crc32[(crc ^ *buf) & 0xff] ^ (crc >> 8);
-	return crc;
-}
-
-int main(int argc, char **argv)
-{
-	int fd;
-	struct mtd_info_user mtdInfo;
-	unsigned long len;
-	struct trx_header *ptr;
-	char *buf;
-	
-	if ((fd = open("/dev/mtdblock/1", O_RDWR)) < 0) {
-		fd = open("/dev/mtdblock1", O_RDWR);
-	}
-
-	if (((len = lseek(fd, 0, SEEK_END)) < 0)
-			|| ((ptr = (struct trx_header *) mmap(0, len, PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0)) == (void *) (-1))
-			|| (ptr->magic != 0x30524448)) {
-		printf("Error reading trx info\n");
-		exit(-1);
-	}
-
-	close(fd);
-
-	if ((fd = open("/dev/mtd/1", O_RDWR)) < 0) {
-		fd = open("/dev/mtd1", O_RDWR);
-	}
-
-	if (ioctl(fd, MEMGETINFO, &mtdInfo)) {
-		fprintf(stderr, "Could not get MTD device info from mtd\n");
-		close(fd);
-		exit(1);
-	}
-	close(fd);
-
-	if (argc > 1 && !strcmp(argv[1],"--move")) {
-		if (ptr->offsets[2] >= ptr->len) {
-			printf("Partition already moved outside trx\n");
-		} else {
-			init_crc32();
-			ptr->offsets[2] +=	(mtdInfo.erasesize - 1);
-			ptr->offsets[2] &= ~(mtdInfo.erasesize - 1);
-			ptr->len = ptr->offsets[2];
-			ptr->crc32 = crc32buf((void *) &(ptr->flag_version), ptr->len - offsetof(struct trx_header, flag_version));
-			msync(ptr,sizeof(struct trx_header),MS_SYNC|MS_INVALIDATE);
-			printf("Partition moved; please reboot\n");
-		}
-	} else if (argc > 1 && !strcmp(argv[1], "--clean")) {
-		buf = (char *) ptr;
-		if (buf[ptr->offsets[1] - 1] == 0) {
-			init_crc32();
-			buf[ptr->offsets[1] - 1] = 1;
-			ptr->crc32 = crc32buf((void *) &(ptr->flag_version), ptr->len - offsetof(struct trx_header, flag_version));
-			msync(ptr,sizeof(struct trx_header),MS_SYNC|MS_INVALIDATE);
-			printf("Partition marked as clean\n");
-		}
-	} else {
-		int x;
-		printf(" erase: 0x%08x\n",mtdInfo.erasesize);
-		printf("=== trx ===\n");
-		printf("mapped: 0x%08x\n", (unsigned)ptr);
-		printf(" magic: 0x%08x\n", ptr->magic);
-		printf("	 len: 0x%08x\n", ptr->len);
-		printf("	 crc: 0x%08x\n", ptr->crc32);
-		for (x = 0; x < 3; x++)
-			printf(" offset[%d]: 0x%08x\n", x, ptr->offsets[x]);
-	}
-
-	munmap((void *) ptr, len);
-	return 0;
-}