be91e71805
If we set the option "local_source" in the globals mwan3 section to "none", traffic generated by the router it self will always use the default route from the wan interface with the lowest metric. If this interface is down the router traffic still uses the connection with the lowest metric but this is disconnected. Load balancing and failover from the lan site is still possible. Only router generated traffic is not load balanced and could not use failover. To solve this issue with router initiated traffic add the additional option "online_metric" to the mwan3 interface section. If the interface is connected then this lower "online metric" is set in the default routing table. With this change we have at least a failover with router initiated traffic. Signed-off-by: Florian Eckert <fe@dev.tdt.de>
98 lines
2.2 KiB
Bash
98 lines
2.2 KiB
Bash
#!/bin/sh
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. /lib/functions.sh
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. /lib/functions/network.sh
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. /lib/mwan3/mwan3.sh
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LOG="logger -t mwan3[$$] -p"
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[ "$ACTION" = "connected" -o "$ACTION" = "disconnected" ] || exit 1
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[ -n "$INTERFACE" ] || exit 2
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if [ "$ACTION" = "connected" ]; then
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[ -n "$DEVICE" ] || exit 3
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fi
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config_load mwan3
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config_get_bool enabled globals 'enabled' '0'
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config_get local_source globals 'local_source' 'none'
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[ ${enabled} = "1" ] || exit 0
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[ ${local_source} = "none" ] || exit 0
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config_get enabled $INTERFACE enabled 0
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config_get online_metric $INTERFACE online_metric 0
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[ "$enabled" == "1" ] || exit 0
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if [ "$online_metric" = 0 ]; then
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$LOG notice "No online metric for interface "$INTERFACE" found"
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exit 0
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fi
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mwan3_add_failover_metric() {
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local iface="$1"
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local device="$2"
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local metric="$3"
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local route_args
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config_get family $iface family ipv4
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if [ "$family" == "ipv4" ]; then
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if ubus call network.interface.${iface}_4 status 1>/dev/null 2>&1; then
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network_get_gateway route_args ${iface}_4
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else
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network_get_gateway route_args $iface
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fi
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if [ -n "$route_args" -a "$route_args" != "0.0.0.0" ]; then
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route_args="via $route_args"
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else
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route_args=""
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fi
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$IP4 route add default $route_args dev $device proto static metric $metric 1>/dev/null 2>&1
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fi
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if [ "$family" == "ipv6" ]; then
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if ubus call network.interface.${iface}_6 status 1>/dev/null 2>&1; then
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network_get_gateway6 route_args ${iface}_6
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else
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network_get_gateway6 route_args $iface
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fi
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if [ -n "$route_args" -a "$route_args" != "::" ]; then
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route_args="via $route_args"
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else
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route_args=""
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fi
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$IP6 route add default $route_args dev $device proto static metric $metric 1>/dev/null 2>&1
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fi
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}
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mwan3_del_failover_metric() {
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local iface="$1"
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local device="$2"
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local metric="$3"
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config_get family $iface family ipv4
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if [ "$family" == "ipv4" ]; then
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$IP4 route del default dev $device proto static metric $metric 1>/dev/null 2>&1
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fi
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if [ "$family" == "ipv6" ]; then
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$IP6 route del default dev $device proto static metric $metric 1>/dev/null 2>&1
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fi
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}
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case "$ACTION" in
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connected)
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mwan3_add_failover_metric "$INTERFACE" "$DEVICE" "$online_metric"
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;;
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disconnected)
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mwan3_del_failover_metric "$INTERFACE" "$DEVICE" "$online_metric"
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;;
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esac
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exit 0
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