From ff481a55183d69c0ab9470bf8fee20e80d0ecfaf Mon Sep 17 00:00:00 2001 From: Gabor Juhos Date: Fri, 26 Oct 2012 18:58:13 +0000 Subject: [PATCH] ar71xx: reject TP-Link images containing a bootloader The original TP-Link firmware images can be flashed via the sysupgrade command, however those may contain a bootloader. Flashing such an image via sysupgrade bricks the board, and it can't be recovered without a serial console. Signed-off-by: Gabor Juhos SVN-Revision: 33944 --- .../linux/ar71xx/base-files/lib/upgrade/platform.sh | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh index 066bfd4149..f1d95f6f6a 100755 --- a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh +++ b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh @@ -65,6 +65,10 @@ tplink_get_image_hwid() { get_image "$@" | dd bs=4 count=1 skip=16 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"' } +tplink_get_image_boot_size() { + get_image "$@" | dd bs=4 count=1 skip=37 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"' +} + platform_check_image() { local board=$(ar71xx_board_name) local magic="$(get_magic_word "$1")" @@ -174,6 +178,14 @@ platform_check_image() { return 1 } + local boot_size + + boot_size=$(tplink_get_image_boot_size "$1") + [ "$boot_size" != "00000000" ] && { + echo "Invalid image, it contains a bootloader." + return 1 + } + return 0 ;; wndr3700)