From: Rafał Miłecki <zajec5@gmail.com>
Date: Mon, 15 Dec 2014 11:09:14 +0000 (+0000)
Subject: brcm47xx: extract magics from specific upgrade images (and still reject them)
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=c3e9796cd5473ddb6548532d5069934ca73d3641;p=openwrt%2Fstaging%2Fyousong.git

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

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>

SVN-Revision: 43718
---

diff --git a/target/linux/brcm47xx/base-files/lib/upgrade/platform.sh b/target/linux/brcm47xx/base-files/lib/upgrade/platform.sh
index 412d6daaff..1cb11b5475 100644
--- 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