5798dfb846
The u-boot on Open Mesh devices checks the whole transfered image against a md5sum. This is stored inside the option filemd5sum inside the fwupgrade.cfg. The bootloader will not check it when this setting is missing and could therefore write invalid images to the flash. Signed-off-by: Sven Eckelmann <sven@open-mesh.com> SVN-Revision: 46925
73 lines
1.9 KiB
Bash
73 lines
1.9 KiB
Bash
#/bin/sh
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#
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# Copyright (C) 2011 OpenWrt.org
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#
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# This is free software, licensed under the GNU General Public License v2.
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# See /LICENSE for more information.
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#
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usage() {
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echo "Usage: $0 <OM2P|OM5P|MR600|MR900> <out file path> <kernel path> <rootfs path>"
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rm -f $CFG_OUT
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exit 1
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}
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[ "$#" -lt 4 ] && usage
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CE_TYPE=$1
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CFG_OUT=$2
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KERNEL_PATH=$3
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ROOTFS_PATH=$4
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case $CE_TYPE in
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OM2P)
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MAX_PART_SIZE=7168
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KERNEL_FLASH_ADDR=0x1c0000
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FLASH_BS=262144
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MD5_SKIP_BLOCKS=1
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;;
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OM5P|MR600|MR900)
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MAX_PART_SIZE=7808
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KERNEL_FLASH_ADDR=0xb0000
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FLASH_BS=65536
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MD5_SKIP_BLOCKS=4
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;;
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*)
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echo "Error - unsupported ce type: $CE_TYPE"
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exit 1
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;;
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esac
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CHECK_BS=65536
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KERNEL_SIZE=$(stat -c%s "$KERNEL_PATH")
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KERNEL_MD5=$(md5=$(md5sum $KERNEL_PATH); echo ${md5%% *})
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KERNEL_PART_SIZE=$(size=$(($KERNEL_SIZE / $FLASH_BS)); [ $(($size * $FLASH_BS)) -lt $KERNEL_SIZE ] && size=$(($size + 1)); echo $(($size * $FLASH_BS / 1024)))
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ROOTFS_FLASH_ADDR=$(addr=$(($KERNEL_FLASH_ADDR + ($KERNEL_PART_SIZE * 1024))); printf "0x%x" $addr)
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ROOTFS_SIZE=$(stat -c%s "$ROOTFS_PATH")
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ROOTFS_CHECK_BLOCKS=$((($ROOTFS_SIZE / $CHECK_BS) - $MD5_SKIP_BLOCKS))
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ROOTFS_MD5=$(md5=$(dd if=$ROOTFS_PATH bs=$CHECK_BS count=$ROOTFS_CHECK_BLOCKS 2>&- | md5sum); echo ${md5%% *})
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ROOTFS_MD5_FULL=$(md5=$(md5sum $ROOTFS_PATH); echo ${md5%% *})
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ROOTFS_CHECK_SIZE=$(printf '0x%x' $(($ROOTFS_CHECK_BLOCKS * $CHECK_BS)))
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ROOTFS_PART_SIZE=$(($MAX_PART_SIZE - $KERNEL_PART_SIZE))
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cat << EOF > $CFG_OUT
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[vmlinux]
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filename=kernel
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md5sum=$KERNEL_MD5
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filemd5sum=$KERNEL_MD5
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flashaddr=$KERNEL_FLASH_ADDR
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checksize=0x0
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cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; saveenv
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cmd_fail=reset
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[rootfs]
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filename=rootfs
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md5sum=$ROOTFS_MD5
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filemd5sum=$ROOTFS_MD5_FULL
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flashaddr=$ROOTFS_FLASH_ADDR
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checksize=$ROOTFS_CHECK_SIZE
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cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; setenv rootfs_size_1 $ROOTFS_PART_SIZE; saveenv
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cmd_fail=reset
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EOF
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