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path: root/data/templates/wwan/ip-down.script.tmpl
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#!/bin/sh

tty=$2

# Only applicable for Wireless Modems (WWAN)
if [ -z "$(echo $tty |  egrep "tty(USB|ACM)")" ]; then
    exit 0
fi

# Determine if we are enslaved to a VRF, this is needed to properly insert
# the default route
VRF_NAME=""
if [ -d /sys/class/net/{{ intf }}/upper_* ]; then
    # Determine upper (VRF) interface
    VRF=$(basename $(ls -d /sys/class/net/wlm0/upper_*))
    # Remove upper_ prefix from result string
    VRF=${VRF#"upper_"}
    # Populate variable to run in VR context
    VRF_NAME=" -c vrf ${VRF_NAME} "
fi

# Remove default route to either default or VRF routing table
vtysh -c "conf t" ${VRF_NAME} -c "no ip route 0.0.0.0/0 {{ intf }} {{ metric }}"

DIALER_PID=$(cat /var/run/{{ intf }}.pid)
logger -t pppd[$DIALER_PID] "removed default route via {{ intf }} metric {{ metric }}"