From 6334cffd9a426d64e3cfe19438377e4c4f2c48cb Mon Sep 17 00:00:00 2001
From: John Crispin <blogic@openwrt.org>
Date: Mon, 14 Sep 2015 20:10:10 +0000
Subject: scripts/om-fwupgradecfg-gen.sh: Fix u-boot image md5sum check

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>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@46925 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 scripts/om-fwupgradecfg-gen.sh | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'scripts')

diff --git a/scripts/om-fwupgradecfg-gen.sh b/scripts/om-fwupgradecfg-gen.sh
index e1329549b8..d385e5e264 100644
--- a/scripts/om-fwupgradecfg-gen.sh
+++ b/scripts/om-fwupgradecfg-gen.sh
@@ -48,6 +48,7 @@ ROOTFS_FLASH_ADDR=$(addr=$(($KERNEL_FLASH_ADDR + ($KERNEL_PART_SIZE * 1024))); p
 ROOTFS_SIZE=$(stat -c%s "$ROOTFS_PATH")
 ROOTFS_CHECK_BLOCKS=$((($ROOTFS_SIZE / $CHECK_BS) - $MD5_SKIP_BLOCKS))
 ROOTFS_MD5=$(md5=$(dd if=$ROOTFS_PATH bs=$CHECK_BS count=$ROOTFS_CHECK_BLOCKS 2>&- | md5sum); echo ${md5%% *})
+ROOTFS_MD5_FULL=$(md5=$(md5sum $ROOTFS_PATH); echo ${md5%% *})
 ROOTFS_CHECK_SIZE=$(printf '0x%x' $(($ROOTFS_CHECK_BLOCKS * $CHECK_BS)))
 ROOTFS_PART_SIZE=$(($MAX_PART_SIZE - $KERNEL_PART_SIZE))
 
@@ -55,6 +56,7 @@ cat << EOF > $CFG_OUT
 [vmlinux]
 filename=kernel
 md5sum=$KERNEL_MD5
+filemd5sum=$KERNEL_MD5
 flashaddr=$KERNEL_FLASH_ADDR
 checksize=0x0
 cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; saveenv
@@ -63,6 +65,7 @@ cmd_fail=reset
 [rootfs]
 filename=rootfs
 md5sum=$ROOTFS_MD5
+filemd5sum=$ROOTFS_MD5_FULL
 flashaddr=$ROOTFS_FLASH_ADDR
 checksize=$ROOTFS_CHECK_SIZE
 cmd_success=setenv bootseq 1,2; setenv kernel_size_1 $KERNEL_PART_SIZE; setenv rootfs_size_1 $ROOTFS_PART_SIZE; saveenv
-- 
cgit v1.2.3