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scripts/om-fwupgradecfg-gen.sh: Generate checksum over whole squashfs

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The rootfs is padded to the full block size by padjffs2 and a 4 byte magic
value ("deadc0de") is added to the end. On first boot, the JFFS2 is
replacing the "deadc0de" marker when the rootfs_data is initialized.

The static part of the rootfs is therefore $rootfs_size - 4 and not
$rootfs_size - 262144 - 4.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
This commit is contained in:
Sven Eckelmann 2020-11-25 10:48:57 +01:00 committed by Petr Štetiar
parent 7c75eaadfc
commit a4c30d9399
1 changed files with 3 additions and 6 deletions
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9
scripts/om-fwupgradecfg-gen.sh
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@ -23,28 +23,24 @@ case $CE_TYPE in
OM2P)
MAX_PART_SIZE=7168
KERNEL_FLASH_ADDR=0x1c0000
MD5_SKIP_BLOCKS=4
SIZE_FACTOR=1
SIZE_FORMAT="%d"
;;
OM5P|OM5PAC|MR600|MR900|MR1750|A60)
MAX_PART_SIZE=7808
KERNEL_FLASH_ADDR=0xb0000
MD5_SKIP_BLOCKS=4
SIZE_FACTOR=1
SIZE_FORMAT="%d"
;;
A42)
MAX_PART_SIZE=15616
KERNEL_FLASH_ADDR=0x180000
MD5_SKIP_BLOCKS=4
SIZE_FACTOR=1024
SIZE_FORMAT="0x%08x"
;;
A62)
MAX_PART_SIZE=15552
KERNEL_FLASH_ADDR=0x1a0000
MD5_SKIP_BLOCKS=4
SIZE_FACTOR=1024
SIZE_FORMAT="0x%08x"
;;
@ -64,11 +60,12 @@ KERNEL_PART_SIZE=$(printf $SIZE_FORMAT $(($KERNEL_PART_SIZE_KB * $SIZE_FACTOR)))
ROOTFS_FLASH_ADDR=$(addr=$(($KERNEL_FLASH_ADDR + ($KERNEL_PART_SIZE_KB * 1024))); printf "0x%x" $addr)
ROOTFS_SIZE=$(stat -c%s "$ROOTFS_PATH")
ROOTFS_CHECK_BLOCKS=$((($ROOTFS_SIZE / $CHECK_BS) - $MD5_SKIP_BLOCKS))
ROOTFS_SQUASHFS_SIZE=$((ROOTFS_SIZE-4))
ROOTFS_CHECK_BLOCKS=$((ROOTFS_SQUASHFS_SIZE / CHECK_BS))
ROOTFS_MD5=$(dd if=$ROOTFS_PATH bs=$CHECK_BS count=$ROOTFS_CHECK_BLOCKS 2>&- | mkhash md5)
ROOTFS_MD5_FULL=$(mkhash md5 $ROOTFS_PATH)
ROOTFS_SHA256_FULL=$(mkhash sha256 $ROOTFS_PATH)
ROOTFS_CHECK_SIZE=$(printf '0x%x' $(($ROOTFS_CHECK_BLOCKS * $CHECK_BS)))
ROOTFS_CHECK_SIZE=$(printf '0x%x' $ROOTFS_SQUASHFS_SIZE)
ROOTFS_PART_SIZE_KB=$(($MAX_PART_SIZE - $KERNEL_PART_SIZE_KB))
ROOTFS_PART_SIZE=$(printf $SIZE_FORMAT $(($ROOTFS_PART_SIZE_KB * $SIZE_FACTOR)))