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authorJo-Philipp Wich <jow@openwrt.org>2010-11-30 00:46:21 +0000
committerJo-Philipp Wich <jow@openwrt.org>2010-11-30 00:46:21 +0000
commitca829e805baccb4e9549ed18c1dd622cdefa8bc6 (patch)
tree32fcde0f44ff38283a2339a5c5d40cea55d985c8
parent9677b65cb679446b1a435bc63b9506618d9e9707 (diff)
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base-files: disable ipv6 on bridge ports, this prevents stray RA assigned and link local addresses on bridge member devices
SVN-Revision: 24194
-rwxr-xr-xpackage/base-files/files/lib/network/config.sh21
1 files changed, 13 insertions, 8 deletions
diff --git a/package/base-files/files/lib/network/config.sh b/package/base-files/files/lib/network/config.sh
index 358e610f62..2ef8cda9d9 100755
--- a/package/base-files/files/lib/network/config.sh
+++ b/package/base-files/files/lib/network/config.sh
@@ -3,6 +3,12 @@
# DEBUG="echo"
+do_sysctl() {
+ [ -n "$2" ] && \
+ sysctl -n -e -w "$1=$2" >/dev/null || \
+ sysctl -n -e "$1"
+}
+
find_config() {
local iftype device iface ifaces ifn
for ifn in $interfaces; do
@@ -164,14 +170,10 @@ prepare_interface() {
local macaddr
config_get macaddr "$config" macaddr
[ -x /usr/sbin/brctl ] && {
- # Remove IPv6 link local addr before adding the iface to the bridge
- local llv6="$(ifconfig "$iface")"
- case "$llv6" in
- *fe80:*/64*)
- llv6="${llv6#* fe80:}"
- ifconfig "$iface" del "fe80:${llv6%% *}"
- ;;
- esac
+ # Disable IPv6 for bridge ports
+ do_sysctl net.ipv6.conf.$iface.disable_ipv6 1
+ [ "${iface##wlan}" != "$iface" ] && \
+ do_sysctl net.ipv6.conf.mon.$iface.disable_ipv6 1
ifconfig "br-$config" 2>/dev/null >/dev/null && {
local newdevs devices
@@ -411,6 +413,9 @@ unbridge() {
for brdev in $(brctl show | awk '$2 ~ /^[0-9].*\./ { print $1 }'); do
brctl delif "$brdev" "$dev" 2>/dev/null >/dev/null
+ do_sysctl net.ipv6.conf.$dev.disable_ipv6 0
+ [ "${dev##wlan}" != "$dev" ] && \
+ do_sysctl net.ipv6.conf.mon.$dev.disable_ipv6 0
done
}
}