wwan: T1988: add missing support for backup default routes

3 files changed, 37 insertions, 0 deletions

diff --git a/src/conf_mode/interfaces-wirelessmodem.py b/src/conf_mode/interfaces-wirelessmodem.py
index 05a844ac8..9efad3b8d 100755
--- a/src/conf_mode/interfaces-wirelessmodem.py
+++ b/src/conf_mode/interfaces-wirelessmodem.py
@@ -31,6 +31,7 @@ config_wwan_tmpl = """### Autogenerated by interfaces-wirelessmodem.py ###
 {% if description %}
 # {{ description }}
 {% endif %}
+ifname {{ intf }}
 ipparam "{{ intf }} {{ metric }}"
 linkname {{ intf }}
 {% if name_server -%}
diff --git a/src/etc/ppp/ip-down.d/0020-wirelessmodem b/src/etc/ppp/ip-down.d/0020-wirelessmodem
new file mode 100755
index 000000000..c93c7cabe
--- /dev/null
+++ b/src/etc/ppp/ip-down.d/0020-wirelessmodem
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+tty=$2
+ipparam=$6
+
+# Only applicable for Wireless Modems (WWAN)
+if [ -z "$(echo $tty |  egrep "tty(USB|ACM)")" ]; then
+    exit 0
+fi
+
+# device name and metric are received using ipparam
+device=`echo "$ipparam"|awk '{ print $1 }'`
+metric=`echo "$ipparam"|awk '{ print $2 }'`
+
+vtysh -c "conf t" -c "no ip route 0.0.0.0/0 ${device} ${metric}"
+
+DIALER_PID=$(cat /var/run/${device}.pid)
+logger -t pppd[$DIALER_PID] "removed default route via $device metric $metric"
diff --git a/src/etc/ppp/ip-up.d/0020-wirelessmodem b/src/etc/ppp/ip-up.d/0020-wirelessmodem
new file mode 100755
index 000000000..95549387b
--- /dev/null
+++ b/src/etc/ppp/ip-up.d/0020-wirelessmodem
@@ -0,0 +1,18 @@
+#!/bin/sh
+
+tty=$2
+ipparam=$6
+
+# Only applicable for Wireless Modems (WWAN)
+if [ -z "$(echo $tty |  egrep "tty(USB|ACM)")" ]; then
+    exit 0
+fi
+
+# device name and metric are received using ipparam
+device=`echo "$ipparam"|awk '{ print $1 }'`
+metric=`echo "$ipparam"|awk '{ print $2 }'`
+
+vtysh -c "conf t" -c "ip route 0.0.0.0/0 ${device} ${metric}"
+
+DIALER_PID=$(cat /var/run/${device}.pid)
+logger -t pppd[$DIALER_PID] "added default route via $device metric $metric"