Add uvpn

install.sh

@@ -126,4 +126,5 @@ install_data blink/51-blink.rules                        "$DESTDIR$udev_rulesdir
 install_data clusterd/clusterd.service                   "$DESTDIR$systemdunitdir/clusterd.service"
 install_exec clusterd/clusterd                           "$DESTDIR$usr_sbindir/clusterd"
 install_exec setuid/setuid                               "$DESTDIR$usr_sbindir/setuid"
+install_exec uvpn/uvpn                                   "$DESTDIR$usr_bindir/uvpn"
 exit

uvpn/dhclient-script

@@ -0,0 +1,124 @@
+#!/bin/bash
+
+ip=/sbin/ip
+
+###
+### DHCPv4 Handlers
+###
+
+if [ x$new_broadcast_address != x ]; then
+  new_broadcast_arg="broadcast $new_broadcast_address"
+fi
+if [ x$old_broadcast_address != x ]; then
+  old_broadcast_arg="broadcast $old_broadcast_address"
+fi
+if [ x$new_subnet_mask != x ]; then
+  new_subnet_arg="netmask $new_subnet_mask"
+fi
+if [ x$old_subnet_mask != x ]; then
+  old_subnet_arg="netmask $old_subnet_mask"
+fi
+if [ x$alias_subnet_mask != x ]; then
+  alias_subnet_arg="netmask $alias_subnet_mask"
+fi
+if [ x$new_interface_mtu != x ]; then
+  mtu_arg="mtu $new_interface_mtu"
+fi
+if [ x$IF_METRIC != x ]; then
+  metric_arg="metric $IF_METRIC"
+fi
+
+if [ x$reason = xBOUND ] || [ x$reason = xRENEW ] || \
+   [ x$reason = xREBIND ] || [ x$reason = xREBOOT ]; then
+
+  if [ x$old_ip_address != x ] && [ x$alias_ip_address != x ] && \
+		[ x$alias_ip_address != x$old_ip_address ]; then
+    # Possible new alias. Remove old alias.
+    ifconfig $interface:0- inet 0
+  fi
+  if [ x$old_ip_address != x ] && [ x$old_ip_address != x$new_ip_address ]; then
+    # IP address changed. Bringing down the interface will delete all routes,
+    # and clear the ARP cache.
+    ifconfig $interface inet 0 down
+
+  fi
+  if [ x$old_ip_address = x ] || [ x$old_ip_address != x$new_ip_address ] || \
+     [ x$reason = xBOUND ] || [ x$reason = xREBOOT ]; then
+
+    ifconfig $interface inet $new_ip_address $new_subnet_arg \
+					$new_broadcast_arg $mtu_arg
+    # Add a network route to the computed network address.
+    for router in $new_routers; do
+      if [ "x$new_subnet_mask" = "x255.255.255.255" ] ; then
+        ip route add $router dev $interface
+      fi
+      ip route add default via $router dev $interface $metric_arg
+    done
+  else
+    # we haven't changed the address, have we changed other options
+    # that we wish to update?
+    if [ x$new_routers != x ] && [ x$new_routers != x$old_routers ] ; then
+      # if we've changed routers delete the old and add the new.
+      for router in $old_routers; do
+        ip route del default via $router
+      done
+      for router in $new_routers; do
+        if [ "x$new_subnet_mask" = "x255.255.255.255" ] ; then
+          ip route add $router dev $interface
+        fi
+        ip route add default via $router dev $interface $metric_arg
+      done
+    fi
+  fi
+  if [ x$new_ip_address != x$alias_ip_address ] && [ x$alias_ip_address != x ];
+   then
+    ifconfig $interface:0- inet 0
+    ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
+    ip route add $alias_ip_address dev $interface:0
+  fi
+  exit 0
+fi
+
+if [ x$reason = xEXPIRE ] || [ x$reason = xFAIL ] || [ x$reason = xRELEASE ] \
+   || [ x$reason = xSTOP ]; then
+  if [ x$alias_ip_address != x ]; then
+    # Turn off alias interface.
+    ifconfig $interface:0- inet 0
+  fi
+  if [ x$old_ip_address != x ]; then
+    # Shut down interface, which will delete routes and clear arp cache.
+    ifconfig $interface inet 0 down
+  fi
+  if [ x$alias_ip_address != x ]; then
+    ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
+    ip route add $alias_ip_address dev $interface:0
+  fi
+  exit 0
+fi
+
+if [ x$reason = xTIMEOUT ]; then
+  if [ x$alias_ip_address != x ]; then
+    ifconfig $interface:0- inet 0
+  fi
+  ifconfig $interface inet $new_ip_address $new_subnet_arg \
+					$new_broadcast_arg $mtu_arg
+  set $new_routers
+  if ping -q -c 1 $1; then
+    if [ x$new_ip_address != x$alias_ip_address ] && \
+			[ x$alias_ip_address != x ]; then
+      ifconfig $interface:0 inet $alias_ip_address $alias_subnet_arg
+      ip route add $alias_ip_address dev $interface:0
+    fi
+    for router in $new_routers; do
+      if [ "x$new_subnet_mask" = "x255.255.255.255" ] ; then
+        ip route add $router dev $interface
+      fi
+      ip route add default via $router dev $interface $metric_arg
+    done
+    exit 0
+  fi
+  ifconfig $interface inet 0 down
+  exit 1
+fi
+
+exit 0