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Update NETGEAR WNDR3700/3800 model string detection patch

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This commit is contained in:
Matthias Schiffer 2015-03-29 14:06:56 +02:00
parent 6bad3e385a
commit 9449f0f5d8
1 changed files with 39 additions and 26 deletions
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patches/openwrt/0027-ar71xx-fix-model-string-detection-on-NETGEAR-WNDR3700-3800-WNDRMAC.patch
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@ -1,41 +1,53 @@
From: Matthias Schiffer <mschiffer@universe-factory.net>
Date: Sun, 15 Mar 2015 19:51:15 +0100
Date: Sun, 29 Mar 2015 13:23:26 +0200
Subject: ar71xx: fix model string detection on NETGEAR WNDR3700/3800/WNDRMAC
There were a few issues with the existing code to detect the model string:
* Always using the string starting with byte 56 would cut off the W of WNDR when
the ID starts with 29763654+16+128 instead of 29763654+16+64
the ID starts with 29763654+16+64 instead of 29763654+16+128
* The string contained garbage after the zero byte instead of cutting it off
after the zero (which wasn't always visible using busybox tools, but could
confuse other scripts)
Tested on a WNDR3700v1 and a WNDR3700v2 using the new 29763654+16+64 ID in the
ART. Furthermore, tested against ART dumps of a WNDR3700v2 using the old
$'\xff...' value and a WNDR3800.
The [ -z "$model" ] check was dropped as there is no way to actually hit this
unless no ART partition is found at all.
The awk command was carefully crafted to work both with gawk and the (horribly
broken) busybox awk.
Fixes #18992.
Signed-off-by: Matthias Schiffer <mschiffer@universe-factory.net>
diff --git a/target/linux/ar71xx/base-files/lib/ar71xx.sh b/target/linux/ar71xx/base-files/lib/ar71xx.sh
index a698ce5..0f9be69 100755
index a698ce5..1838cb4 100755
--- a/target/linux/ar71xx/base-files/lib/ar71xx.sh
+++ b/target/linux/ar71xx/base-files/lib/ar71xx.sh
@@ -37,16 +37,28 @@ wndr3700_board_detect() {
@@ -37,16 +37,26 @@ wndr3700_board_detect() {
machine="NETGEAR WNDR3700"
;;
"33373031")
- local model
- model=$(ar71xx_get_mtd_offset_size_format art 56 10 %c)
- if [ -z "$model" ] || [ "$model" = $'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff' ]; then
+ case "$(ar71xx_get_mtd_offset_size_format art 56 10 %c)" in
+ $'\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff')
machine="NETGEAR WNDR3700v2"
- machine="NETGEAR WNDR3700v2"
- elif [ -z "$model" ] || [ "$model" = $'\xff\xff\xff\xff\xff\xff\xff\xff\xffN' ]; then
+ ;;
+ $'\xff\xff\xff\xff\xff\xff\xff\xff\xffN')
machine="NETGEAR WNDRMAC"
- machine="NETGEAR WNDRMAC"
- else
- machine="NETGEAR $model"
- fi
- ;;
+ ;;
+ *)
+ # Use awk to remove everything after the first zero byte
+ model="$(ar71xx_get_mtd_offset_size_format art 41 32 %c | awk 'BEGIN{FS="[[:cntrl:]]"} {print $1; exit}')"
+ case $model in
+ $'\xff'*)
+ if [ "${model:24:1}" = 'N' ]; then
+ machine="NETGEAR WNDRMAC"
+ else
+ machine="NETGEAR WNDR3700v2"
+ fi
+ ;;
+ '29763654+16+64'*)
+ machine="NETGEAR ${model:14}"
+ ;;
@ -44,8 +56,9 @@ index a698ce5..0f9be69 100755
+ ;;
+ *)
+ # Unknown ID
+ machine="NETGEAR $model"
+ esac
machine="NETGEAR $model"
- fi
- ;;
+ esac
esac