From 95d8568cb87fd96086998c304a453aef6ff88298 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <zajec5@gmail.com>
Date: Fri, 10 Jun 2016 12:53:11 +0200
Subject: bcm53xx: calculate TRX CRC32 using whole kernel partition
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This provides better protection of flash data.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
---
target/linux/bcm53xx/base-files/etc/uci-defaults/09_fix_crc | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/target/linux/bcm53xx/base-files/etc/uci-defaults/09_fix_crc b/target/linux/bcm53xx/base-files/etc/uci-defaults/09_fix_crc
index 3d14827482..2959905e81 100644
--- a/target/linux/bcm53xx/base-files/etc/uci-defaults/09_fix_crc
+++ b/target/linux/bcm53xx/base-files/etc/uci-defaults/09_fix_crc
@@ -1,3 +1,8 @@
#!/bin/sh
-mtd fixtrx firmware || mtd fixseama firmware
+kernel_size=$(sed -n 's/mtd[0-9]*: \([0-9a-f]*\).*"\(kerel\|liux\)".*/\1/p' /proc/mtd)
+[ -n "$kernel_size" ] && kernel_size=$((0x$kernel_size))
+
+mtd ${kernel_size:+-c $kernel_size} fixtrx firmware && exit 0
+mtd fixseama firmware && exit 0
+exit 1
--
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