brcm47xx: extract magics from specific upgrade images (and still reject them)

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@43718 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/target/linux/brcm47xx/base-files/lib/upgrade/platform.sh b/target/linux/brcm47xx/base-files/lib/upgrade/platform.sh
index 412d6da..1cb11b5 100644 (file)
--- a/target/linux/brcm47xx/base-files/lib/upgrade/platform.sh
+++ b/target/linux/brcm47xx/base-files/lib/upgrade/platform.sh
@@ -36,7 +36,23 @@ platform_check_image() {
        local file_type=$(brcm47xx_identify "$1")
 
        case "$file_type" in
-               "trx") return 0;;
+               "chk")
+                       local header_len=$((0x$(get_magic_long_at "$1" 4)))
+                       local board_id_len=$(($header_len - 40))
+                       local board_id=$(dd if="$1" skip=40 bs=1 count=$board_id_len 2>/dev/null | hexdump -v -e '1/1 "%c"')
+                       echo "Found CHK image with device board_id $board_id"
+                       echo "Flashing CHK images in unsupported. Please use only .trx files."
+                       return 1
+               ;;
+               "cybertan")
+                       local magic=$(dd if="$1" bs=1 count=4 2>/dev/null | hexdump -v -e '1/1 "%c"')
+                       echo "Found CyberTAN image with device magic: $magic"
+                       echo "Flashing CyberTAN images in unsupported. Please use only .trx files."
+                       return 1
+               ;;
+               "trx")
+                       return 0
+               ;;
                *)
                        echo "Invalid image type. Please use only .trx files"
                        return 1