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openmptcprouter-feeds/mptcp/files/usr/share/omr/post-tracking.d/post-tracking
2018-03-20 07:44:22 +01:00

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# vim: set ft=sh noexpandtab tabstop=4 shiftwidth=4 softtabstop=4 :
SETROUTE=false
set_route() {
local multipath_config interface_gw interface_if
INTERFACE=$1
PREVINTERFACE=$2
multipath_config=$(uci -q get "network.$INTERFACE.multipath" || echo "off")
interface_if=$(uci -q get "network.$INTERFACE.ifname")
multipath_current_config=$(multipath $interface_if | grep deactivated)
if [ "$multipath_config" != "off" ] && [ "$SETROUTE" != true ] && [ "$INTERFACE" != "$PREVINTERFACE" ] && [ "$multipath_current_config" = "" ]; then
#if [ "$multipath_config" != "off" ] && [ "$SETROUTE" != true ]; then
#if [ "$multipath_config" != "off" ] && [ "$INTERFACE" != "$PREVINTERFACE" ] && [ "$SETROUTE" != true ]; then
interface_gw=$(uci -q get "network.$INTERFACE.gateway")
if [ -z $interface_gw ]; then
$interface_gw=$(ubus call network.interface.$INTERFACE status | jsonfilter -e '@.route[0].nexthop' | tr -d "\n")
fi
if [ -z $interface_gw ]; then
$interface_gw=$(ubus call network.interface.$INTERFACE status | jsonfilter -e '@.inactive.route[0].nexthop' | tr -d "\n")
fi
if [ "$interface_gw" != "" ]; then
_log "Replace default route by $interface_gw dev $interface_if"
ip route replace default scope global nexthop via $interface_gw dev $interface_if && SETROUTE=true
fi
fi
}
set_ss_route() {
local server_ip
config_get server_ip $1 server
if [ "$server_ip" != "" ] && [ "$OMR_TRACKER_DEVICE_GATEWAY" != "" ] && [ "$(ip route show dev $OMR_TRACKER_DEVICE | grep $server_ip | grep $OMR_TRACKER_DEVICE_GATEWAY)" = "" ]; then
_log "Set server route via $OMR_TRACKER_DEVICE"
ip route replace $server_ip via $OMR_TRACKER_DEVICE_GATEWAY dev $OMR_TRACKER_DEVICE
fi
}
del_ss_route() {
local server_ip
config_get server_ip $1 server
if [ "$server_ip" != "" ] && [ "$OMR_TRACKER_DEVICE_GATEWAY" != "" ] && [ "$(ip route show dev $OMR_TRACKER_DEVICE | grep $server_ip | grep $OMR_TRACKER_DEVICE_GATEWAY)" != "" ]; then
_log "Remove server route via $OMR_TRACKER_DEVICE"
ip route delete $server_ip via $OMR_TRACKER_DEVICE_GATEWAY dev $OMR_TRACKER_DEVICE
fi
}
sleep `expr $RANDOM % 10`
# Get the current multipath status
multipath_status="off"
case "$(multipath "$OMR_TRACKER_DEVICE")" in
*default*) multipath_status="on" ;;
*backup*) multipath_status="backup" ;;
*handover*) multipath_status="handover" ;;
esac
default_gw=$(ip route show default | grep -v metric | awk '/default/ {print $3}')
#current_interface_gw=$(uci -q get "network.$OMR_TRACKER_INTERFACE.gateway")
# An interface in error will never be used in MPTCP
if [ "$OMR_TRACKER_STATUS" = "ERROR" ]; then
#[ "$multipath_status" = "off" ] && exit 0
#_log "$OMR_TRACKER_DEVICE switched off"
multipath "$OMR_TRACKER_DEVICE" off
if [ "$default_gw" = "$OMR_TRACKER_DEVICE_GATEWAY" ] || [ "$default_gw" = "" ]; then
config_load network
config_foreach set_route interface $OMR_TRACKER_INTERFACE
fi
config_load shadowsocks-libev
config_foreach del_ss_route server
exit 0
fi
if [ "$OMR_TRACKER_INTERFACE" = "glorytun" ]; then
if [ "$default_gw" != "$OMR_TRACKER_DEVICE_GATEWAY" ] || [ "$default_gw" = "" ]; then
_log "Tunnel up : Replace default route by $current_interface_gw dev $OMR_TRACKER_DEVICE"
ip route replace default scope global nexthop via $OMR_TRACKER_DEVICE_GATEWAY dev $OMR_TRACKER_DEVICE
fi
exit 0
fi
multipath_config=$(uci -q get "network.$OMR_TRACKER_INTERFACE.multipath" || echo "off")
if [ "$multipath_config" = "master" ]; then
if [ "$default_gw" != "$OMR_TRACKER_DEVICE_GATEWAY" ] || [ "$default_gw" = "" ]; then
if [ "$(ip route show default | grep -v metric | awk '/default/ {print $5}' | grep tun)" = "" ]; then
_log "Master up : Replace default route by $current_interface_gw dev $OMR_TRACKER_DEVICE"
ip route replace default scope global nexthop via $OMR_TRACKER_DEVICE_GATEWAY dev $OMR_TRACKER_DEVICE
else
config_load shadowsocks-libev
config_foreach set_ss_route server
fi
fi
multipath_config="on"
fi
[ "$multipath_config" = "master" ] && [ "$multipath_status" = "on" ] && exit 0
[ "$multipath_status" = "$multipath_config" ] && exit 0
_log "Multipath $OMR_TRACKER_DEVICE switched to $multipath_config"
multipath "$OMR_TRACKER_DEVICE" "$multipath_config"