3 # Control script for starting or stopping an rrqnet virtual cable via
4 # ifup/ifdown. To use this, you need firstly to links to this script
5 # set up as /etc/network/if-pre-up.d/rrqnet and
6 # /etc/network/if-down.d/rrqnet. Secondly, you need a stanza in
7 # /etc/network/interfaces for the cabling tap and its associated
8 # configuration settings.
10 # "rrqnet name" is the primary stanza key, which result in
11 # a creation of a tap by that name, supported by an rrqnet plug
12 # according to the setup in /etc/rrqnet/conf.d/name.conf
14 #echo '===========' >> /tmp/FOO
17 # Verify that it's an rrqnet stanza
18 [ -z "$IF_RRQNET_PORT" ] && exit 0
20 # An rrqnet stanza may have the following settings:
23 # rrqnet_remote <remote declaration>
24 # rrqnet_options <options>
25 # rrqnet_log <level> <pathname>
26 # rrqnet_bridge <bridge>
27 # rrqnet_dhcp <options>
29 : ${RRQDAEMON:=/usr/local/sbin/rrqnet}
30 : ${NAME:=rrqnet-${IFACE}}
33 configure_tap_bridge() {
34 [ -z "$IF_RRQNET_BRIDGE" ] && return 0
35 brctl show $IF_RRQNET_BRIDGE | grep -wq $IFACE && return 0
36 brctl addif $IF_RRQNET_BRIDGE $IFACE
41 ( ip link show $IFACE 2>/dev/null || ip tuntap add $IFACE mode tap ) | \
42 grep -q "state UP" || ip link set dev $IFACE up
45 ############################################################
47 : ${LEASES:=/var/lib/dhcp/dhclient.$IFACE.leases}
48 : ${DHCPARGS:="-4 -cf /dev/null"}
49 : ${PIDFILE:=/var/run/dhclient.$IFACE}
54 [ -z "$*" ] || DHCPARGS="$*"
55 /sbin/dhclient -pf $PIDFILE $DHCPARGS -lf $LEASES $IFACE
61 [ -z "$*" ] || DHCPARGS="$*"
62 /sbin/dhclient -x -pf $PIDFILE $DHCPARGS -lf $LEASES $IFACE 2>/dev/null
65 ############################################################
66 ## The action functions
69 start_cable_pre_up() {
70 configure_tap_up || return 1
71 configure_tap_bridge || return 1
72 [ -z "$IF_RRQNET_NICE" ] || \
73 RRQDAEMON="/usr/bin/nice -n $IF_RRQNET_NICE $RRQDAEMON"
74 if [ -z "$IF_RRQNET_LOG" ] ; then
75 daemon -U -r -a 10 -n $NAME -- \
76 $RRQDAEMON $IF_RRQNET_OPTIONS \
77 -t $IFACE $IF_RRQNET_PORT $IF_RRQNET_REMOTE
79 daemon -U -r -a 10 -n $NAME -E "${IF_RRQNET_LOG#* }" -- \
80 $RRQDAEMON ${IF_RRQNET_LOG%% *} $IF_RRQNET_OPTIONS \
81 -t $IFACE $IF_RRQNET_PORT $IF_RRQNET_REMOTE
86 start_cable_post_up() {
87 case "$IF_RRQNET_DHCP" in
89 start_dhclient IF_RRQNET_DHCP
92 : # no or unkown dhcp option
98 stop_cable_pre_down() {
99 case "$IF_RRQNET_DHCP" in
101 stop_dhclient $IF_RRQNET_DHCP
104 : # no or unkown dhcp option
110 stop_cable_post_down() {
111 daemon -n $NAME --stop
115 case "$MODE-$PHASE" in
116 start-pre-up) start_cable_pre_up ;;
117 start-post-up) start_cable_post_up ;;
118 stop-pre-down) stop_cable_pre_down ;;
119 stop-post-down) stop_cable_post_down ;;