From bc21e5bca265304dc66f62f63f0c7a054875deb5 Mon Sep 17 00:00:00 2001
From: juhosg <juhosg@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Fri, 26 Oct 2012 18:58:13 +0000
Subject: 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 <juhosg@openwrt.org>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@33944 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
target/linux/ar71xx/base-files/lib/upgrade/platform.sh | 12 ++++++++++++
1 file changed, 12 insertions(+)
(limited to 'target/linux')
diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
index 066bfd414..f1d95f6f6 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)
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