create_firmware.sh

TViX firmware creation tool.

#! /bin/bash
# create_firmware.sh by BadEIP.
#
# The script will create a directory in the current working directory named mnt, where one of the
# JFFS2 filesystems contained in the firmware will be mounted.
# This directory can then be manually- or automatically patched. 
# To perform an automatic creation of the firmware, put a directory named root_6500 in your $PATH
# 
# usage:
# create_firmware.sh /path/to/firmware.fwp
#
# This script only supports the Tvix M-6500 platform, as firmware for all other Tvix-architectures
# can easily be generated manually with TvixFW

FIRMWARE=$PWD/$1
TVIXFW=`which tvixfw`
OPENTVIX_ROOT=$PWD/root
SUDO=sudo
MTD="/dev/mtdblock0"
MNT_DIR="./mnt"
JFFS2_MNT="./mnt/jffs2"
ROMFS_MNT="./mnt/romfs"
DUMP_DIR=`basename $FIRMWARE.dump`
JFFS2_FILE="$DUMP_DIR/jffs2.apps"
ROMFS_FILE="$DUMP_DIR/romfs.rootfs"

about()
{
   clear
   echo "=================================================================================="
   echo " This is as a supplement to TvixFW (available from http://binary-art.net) to ease "
   echo " creation of Tvix M-6500 firmware."
   echo "=================================================================================="
   echo
}

check_args()
{
   if [ -z $FIRMWARE ]; then
      echo "usage: create_firmware <firmware.fwp> <root_directory>" 
      exit 1 
   fi

   if [ -z $OPENTVIX_ROOT ]; then
      OPENTVIX_ROOT=root
      echo $OPENTVIX_ROOT
      if [ ! -d $OPENTVIX_ROOT ]; then
         echo "usage: create_firmware <firmware.fwp> <root_directory>" 
         exit 1
      fi
   fi

   echo "Source firmware: $FIRMWARE"
   echo "root directory: $OPENTVIX_ROOT"
}

locate_tvixfw()
{
   if [ -z $TVIXFW ]; then
      if [ -f ./bin/tvixfw ]; then
         TVIXFW=./bin/tvixfw
      else
         echo "Error, unable to locate the tvixfw binary in your \$PATH"
         exit 1
      fi
   fi
}

init()
{
   if [ "$(id -u)" == "0" ]; then
      unset SUDO
   else
      echo -n "Sudo "
   fi

   $SUDO rm -rvf $MNT_DIR 2>&1 >/dev/null
   mkdir -p $JFFS2_MNT
   mkdir -p $ROMFS_MNT
   $SUDO umount $MNT_DIR 2>/dev/null
   $SUDO umount $JFFS2_MNT 2>/dev/null
   $SUDO umount $ROMFS_MNT 2>/dev/null
   echo
}

load_modules()
{
   $SUDO modprobe mtd
   $SUDO modprobe jffs2
   $SUDO modprobe mtdram total_size=65536 erase_size=512
   $SUDO modprobe mtdchar
   $SUDO modprobe mtdblock
}

dump_filesystems()
{
   $TVIXFW --dump $FIRMWARE 2>/dev/null
}

extract_jffs2_apps()
{
   $SUDO dd if=/dev/zero bs=10240 count=6536 of=$MTD 2>/dev/null &&
   $SUDO dd if=$JFFS2_FILE of=$MTD 2>/dev/null
   $SUDO mount -t jffs2 $MTD $JFFS2_MNT || exit 1
   echo "jffs2 image mounted"
}

create_busybox_links()
{
   cd $MNT_DIR/jffs2/tvix/opentvix/usr/bin/ || echo "can't cd to dest dir":wq
   
   echo "creating busybox symlinks.."
   for sym in \
addgroup adduser ar arping ash awk basename bunzip2 bzcat cat catv chattr chgrp chmod chown chroot chrt \
chvt cksum clear cmp cp cpio crond crontab cut date dc dd deallocvt delgroup deluser df dhcprelay diff dirname \
dmesg dnsd dos2unix du dumpkmap dumpleases echo egrep eject env ether-wake expr false fdflush fdformat fgrep find \
fold free freeramdisk fsck fuser getopt getty grep gunzip gzip halt hdparm head hexdump hostid hostname hwclock \
id ifconfig ifdown ifup inetd init insmod install ip ipaddr ipcrm ipcs iplink iproute iprule iptunnel kill killall \
killall5 klogd last length less linux32 linux64 linuxrc ln loadfont loadkmap logger login logname losetup ls lsattr \
lsmod lzmacat makedevs md5sum mdev mesg mkdir mkfifo mknod mkswap mktemp modprobe more mount mountpoint mt mv \
nameif netstat nice nohup nslookup od openvt passwd patch pidof ping pipe_progress pivot_root poweroff printenv \
printf ps pwd rdate readlink readprofile realpath reboot renice reset resize rm rmdir rmmod route run-parts runlevel \
sed seq setarch setconsole setkeycodes setlogcons setsid sh sha1sum sleep sort start-stop-daemon strings stty su \
sulogin swapoff swapon switch_root sync sysctl syslogd tail tar taskset tee telnet test tftp time top touch tr \
traceroute true tty udhcpc udhcpd umount uname uniq unix2dos unlzma unzip uptime usleep uudecode uuencode vconfig \
vi vlock watch watchdog wc wget which who whoami xargs yes zcat

   do
      $SUDO ln -sv ../../busybox $sym
   done
   cd -
}

modify_jffs2_apps()
{
   #$SUDO ./bin/patch_main $MNT_DIR/jffs2/tvix/main

   echo "Installing badeip OpenTViX base."
   echo "Press enter to continue"
   read foo
   $SUDO cp -vrf $MNT_DIR/jffs2/tvix/main $MNT_DIR/jffs2/tvix/main.dvico &&
   $SUDO cp -vrf $OPENTVIX_ROOT/* $MNT_DIR/jffs2/tvix/ 
   create_busybox_links
   echo
   
   echo "you can now modify the contents of the $MNT_DIR directory."
   echo "!!! copy main.dvico binary?? !!!"
   echo "-- press enter to continue --"
   read foo

   echo "generating jffs2 image.."
   #$SUDO mkfs.jffs2 --eraseblock=$((0x2000)) --pagesize=4096 --root=$JFFS2_MNT -o $JFFS2_FILE
   $SUDO mkfs.jffs2 -n --eraseblock=128KiB --root=$JFFS2_MNT -o $JFFS2_FILE
   $SUDO umount $JFFS2_MNT
}

create_firmware()
{
   $TVIXFW --create $DUMP_DIR/fwp.header
}

main()
{
   rm -rf root
   svn checkout http://svn.xp-dev.com/svn/badeip-opentvix-root
   cp -r badeip-opentvix-root/trunk/root/ .
   rm -rf badeip-opentvix-root
   find root -name .svn | xargs rm -rf

   cd firmware
   about
   check_args
   locate_tvixfw
   init
   load_modules
   dump_filesystems
   extract_jffs2_apps
   modify_jffs2_apps
   create_firmware
}

main