ar71xx: check both HWID and HWREV on upgrades of TP-LINK devices

There's no reason for us to be more lenient than the stock firmware, so
better check the HWREV as well to avoid bricked devices.

Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
SVN-Revision: 49105

diff --git a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
index 1d3695f372f022266429eb0122d7a51d2ef7c285..923e02b9fc01549330941a10bc0f15ccc7ab69be 100755 (executable)
--- a/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/ar71xx/base-files/lib/upgrade/platform.sh
@@ -66,6 +66,10 @@ 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_mid() {
+       get_image "$@" | dd bs=4 count=1 skip=17 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
+}
+
 tplink_get_image_boot_size() {
        get_image "$@" | dd bs=4 count=1 skip=37 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"'
 }
@@ -396,13 +400,17 @@ platform_check_image() {
                }
 
                local hwid
-               local imageid
+               local mid
+               local imagehwid
+               local imagemid
 
                hwid=$(tplink_get_hwid)
-               imageid=$(tplink_get_image_hwid "$1")
+               mid=$(tplink_get_mid)
+               imagehwid=$(tplink_get_image_hwid "$1")
+               imagemid=$(tplink_get_image_mid "$1")
 
-               [ "$hwid" != "$imageid" ] && {
-                       echo "Invalid image, hardware ID mismatch, hw:$hwid image:$imageid."
+               [ "$hwid" != "$imagehwid" -o "$mid" != "$imagemid" ] && {
+                       echo "Invalid image, hardware ID mismatch, hw:$hwid $mid image:$imagehwid $imagemid."
                        return 1
                }