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#!/bin/sh
# Script parameters will be like:
# wlm0 /dev/serial/by-bus/usb0b1.3p1.3 115200 10.100.118.91 10.64.64.64 wlm0
# Only applicable for Wireless Modems (WWAN)
if [ -z $(echo $2 | egrep "(ttyS[0-9]+|usb[0-9]+b.*)$") ]; then
exit 0
fi
# Determine if we are running inside a VRF or not, required for proper routing table
# NOTE: the down script can not be properly templated as we need the VRF name,
# which is not present on deletion, thus we read it from the operating system.
if [ -d /sys/class/net/{{ ifname }}/upper_* ]; then
# Determine upper (VRF) interface
VRF=$(basename $(ls -d /sys/class/net/{{ ifname }}/upper_*))
# Remove upper_ prefix from result string
VRF_NAME=${VRF#"upper_"}
# Remove default route from VRF routing table
vtysh -c "conf t" -c "vrf ${VRF_NAME}" -c "no ip route 0.0.0.0/0 {{ ifname }}"
else
# Remove default route from GRT (global routing table)
vtysh -c "conf t" -c "no ip route 0.0.0.0/0 {{ ifname }}"
fi
DIALER_PID=$(cat /var/run/{{ ifname }}.pid)
logger -t pppd[$DIALER_PID] "removed default route via {{ ifname }} metric {{ backup.distance }}"
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