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authorChristian Poessinger <christian@poessinger.com>2020-05-26 22:01:44 +0200
committerChristian Poessinger <christian@poessinger.com>2020-05-26 22:01:44 +0200
commit6234be3509274f85c09d30a787c9f0de27ca81f4 (patch)
treeb1c03c6bf4a9baa870616d2122e6c2cc53db0356
parentf26c44b4cbeb1b69a5256f5b36f6fa44968234c4 (diff)
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pppoe: T2502: configure IPv6 default routes if required
-rw-r--r--data/templates/pppoe/ipv6-up.script.tmpl41
1 files changed, 41 insertions, 0 deletions
diff --git a/data/templates/pppoe/ipv6-up.script.tmpl b/data/templates/pppoe/ipv6-up.script.tmpl
index 9bf6db5cc..097f1d4c3 100644
--- a/data/templates/pppoe/ipv6-up.script.tmpl
+++ b/data/templates/pppoe/ipv6-up.script.tmpl
@@ -7,6 +7,8 @@ if [ "$6" != "{{ intf }}" ]; then
exit
fi
+set -x
+
{% if ipv6_autoconf -%}
# add some info to syslog
DIALER_PID=$(cat /var/run/{{ intf }}.pid)
@@ -44,3 +46,42 @@ echo 1 > /proc/sys/net/ipv6/conf/{{ intf }}/autoconf
# Start wide dhcpv6 client
systemctl start dhcp6c@{{ intf }}.service
{% endif %}
+
+
+{% if default_route != 'none' -%}
+# See https://phabricator.vyos.net/T2248 & T2220. Determine if we are enslaved
+# to a VRF, this is needed to properly insert the default route.
+
+SED_OPT="^ipv6 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 ${VRF}"
+fi
+
+{% if default_route == 'auto' -%}
+# Only insert a new default route if there is no default route configured
+routes=$(vtysh -c "show running-config" | sed -n "/${SED_OPT}/,/!/p" | grep ::/0 | wc -l)
+if [ "$routes" -ne 0 ]; then
+ exit 1
+fi
+
+{% elif default_route == 'force' -%}
+# Retrieve current static default routes and remove it from the routing table
+vtysh -c "show running-config" | sed -n "/${SED_OPT}/,/!/p" | grep ::/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 "ipv6 route ::/0 {{ intf }} ${VRF_NAME}"
+logger -t pppd[$DIALER_PID] "added default route via {{ intf }} ${VRF_NAME}"
+{% endif %}
+
+