1 files changed, 47 insertions, 0 deletions
diff --git a/data/templates/pppoe/ip-up.script.tmpl b/data/templates/pppoe/ip-up.script.tmpl
new file mode 100644
index 000000000..697ebcc20
--- /dev/null
+++ b/data/templates/pppoe/ip-up.script.tmpl
@@ -0,0 +1,47 @@
+#!/bin/sh
+
+# As PPPoE is an "on demand" interface we need to re-configure it when it
+# becomes up
+if [ "$6" != "{{ intf }}" ]; then
+    exit
+fi
+
+{% if not on_demand %}
+# See https://phabricator.vyos.net/T2248 & T2220. Determine if we are enslaved
+# to a VRF, this is needed to properly insert the default route.
+
+# add some info to syslog
+DIALER_PID=$(cat /var/run/{{ intf }}.pid)
+logger -t pppd[$DIALER_PID] "executing $0"
+
+SED_OPT="^ip route"
+VRF_NAME=""
+if [ -d /sys/class/net/{{ intf }}/upper_* ]; then
+    # Determine upper (VRF) interface
+    VRF=$(basename $(ls -d /sys/class/net/{{ intf }}/upper_*))
+    # Remove upper_ prefix from result string
+    VRF=${VRF#"upper_"}
+    # generate new SED command
+    SED_OPT="vrf ${VRF}"
+    # generate vtysh option
+    VRF_NAME="vrf ${VRF}"
+fi
+
+{% if 'auto' in default_route -%}
+# Only insert a new default route if there is no default route configured
+routes=$(vtysh -c "show running-config" | sed -n "/${SED_OPT}/,/!/p" | grep 0.0.0.0/0 | wc -l)
+if [ "$routes" -ne 0 ]; then
+    exit 1
+fi
+
+{% elif 'force' in default_route -%}
+# Retrieve current static default routes and remove it from the routing table
+vtysh -c "show running-config" | sed -n "/${SED_OPT}/,/!/p" | grep 0.0.0.0/0 | while read route ; do
+    vtysh -c "conf t" ${VTY_OPT} -c "no ${route} ${VRF_NAME}"
+done
+{% endif %}
+
+# Add default route to default or VRF routing table
+vtysh -c "conf t" ${VTY_OPT} -c "ip route 0.0.0.0/0 {{ intf }} ${VRF_NAME}"
+logger -t pppd[$DIALER_PID] "added default route via {{ intf }} ${VRF_NAME}"
+{% endif %}