COMMAND=$0
+#################### global vars
+RUN_DIR=/var/run/openvswitch
+DB_CONF_FILE=/etc/openvswitch/conf.db
+DB_SCHEMA=/usr/share/openvswitch/vswitch.ovsschema
+DB_PID_FILE=/var/run/openvswitch/db.pid
+DB_LOG=/var/log/ovs-db.log
+##
+DB_SOCKET=/var/run/openvswitch/db.sock
+##
+SWITCH_PID_FILE=/var/run/openvswitch/switch.pid
+SWITCH_LOG=/var/log/ovs-switch.log
+SWITCH_SOCKET=/var/run/openvswitch/switch.sock
+
#################### helper functions
function kill_pltap_ovs () {
}
function is_switch_running {
- ovs-appctl version >/dev/null 2>&1
+ ovs-appctl --target=$SWITCH_SOCKET version >& /dev/null
}
function tapname () {
function wait_server () {
pid_file=$1; shift
- server_name="$@"; shift
+ server_name=$1; shift
+ timeout=$1; shift
+
+ expire=$(($(date +%s) + $timeout))
## wait for it to be up - xxx todo - could use a timeout of some kind
while [ ! -f "$pid_file" ]; do
- echo "Waiting for $server_name to start..." >&2
+ echo "Waiting for $server_name to start... $(($expire - $(date +%s)))s left" >&2
sleep 1;
+ [ $(date +%s) -ge $expire ] && return 1
done
cat "$pid_file"
}
-######################################## startup
-RUN_DIR=/var/run/openvswitch
-DB_CONF_FILE=/usr/etc/openvswitch/conf.db
-DB_SCHEMA=/usr/share/openvswitch/vswitch.ovsschema
-DB_PID_FILE=/var/run/openvswitch/ovsdb-server.pid
-DB_LOG=/var/log/ovs-db.log
-##
-DB_SOCKET=/var/run/openvswitch/db.sock
-##
-SWITCH_PID_FILE=/var/run/openvswitch/ovs-vswitchd.pid
-SWITCH_LOG=/var/log/ovs-switch.log
+function wait_device () {
+ tapname=$1; shift
+ timeout=$1; shift
+
+ expire=$(($(date +%s) + $timeout))
+
+ while ! ip link show up | egrep -q "^[0-9]+: +$tapname:"; do
+ echo "Waiting for $tapname to come UP...$(($expire - $(date +%s)))s left" >&2
+ sleep 1
+ [ $(date +%s) -ge $expire ] && return 1
+ done
+ return 0
+}
+######################################## startup
function start_db () {
[[ -n "$@" ]] && error "Usage: $COMMAND start-db"
else
echo 'ovsdb-server appears to be running already, *not* starting'
fi
- wait_server $DB_PID_FILE ovsdb-server
+ wait_server $DB_PID_FILE ovsdb-server 30
}
function stop_db () { pkill ovsdb-server; }
ovs-vswitchd \
--pidfile=$SWITCH_PID_FILE \
--log-file=$SWITCH_LOG \
+ --unixctl=$SWITCH_SOCKET \
--detach \
unix:$DB_SOCKET >& /dev/null
else
echo 'ovs-vswitchd appears to be running already, *not* starting'
fi
- wait_server $SWITCH_PID_FILE ovs-vswitchd
+ wait_server $SWITCH_PID_FILE ovs-vswitchd 30
}
function stop_switch () { pkill ovs-vswitchd ; }
[ -n "$pids" ] && ps $pids
}
+function start () {
+ start_db
+ start_switch
+}
+
+function stop () {
+ stop_switch
+ stop_db
+}
+
#################### create functions
function create_bridge () {
# check whether the address is already assigned
TAPNAME=$(tapname $IP)
if [ ! -z "$TAPNAME" ]; then
- if ovs-vsctl br-exists "$TAPNAME"; then
+ if ovs-vsctl --db=unix:$DB_SOCKET br-exists "$TAPNAME"; then
echo $TAPNAME
exit 0
fi
$IP
$PREFIX
EOF
- while ! ip link show up | egrep -q "^[0-9]+: +$TAPNAME:"; do
- echo "Waiting for $TAPNAME to come UP..." >&2
- sleep 1
- done
- ovs-vsctl add-br $TAPNAME -- set bridge $TAPNAME datapath_type=planetlab
+ wait_device $TAPNAME 60 && \
+ ovs-vsctl --db=unix:$DB_SOCKET add-br $TAPNAME -- set bridge $TAPNAME datapath_type=planetlab
echo $TAPNAME
return 0
}
function create_port () {
+ [[ -z "$@" ]] && error "$COMMAND create-port <bridge> <port>"
bridge=$1; shift
- [[ -z "$@" ]] || error "$COMMAND create-port <bridge> <port>"
+ [[ -z "$@" ]] && error "$COMMAND create-port <bridge> <port>"
port=$1; shift
- [[ -n "$@" ]] || error "$COMMAND create-port <bridge> <port>"
+ [[ -n "$@" ]] && error "$COMMAND create-port <bridge> <port>"
set -e
- if ! ovs-vsctl list-ports "$bridge" | grep -q "^$port\$"; then
- ovs-vsctl add-port "$bridge" "$port" -- set interface "$port" type=tunnel
+ if ! ovs-vsctl --db=unix:$DB_SOCKET list-ports "$bridge" | grep -q "^$port\$"; then
+ ovs-vsctl --db=unix:$DB_SOCKET add-port "$bridge" "$port" -- set interface "$port" type=tunnel
fi
- ovs-appctl netdev-tunnel/get-port "$port"
+ ovs-appctl --target=$SWITCH_SOCKET netdev-tunnel/get-port "$port"
return 0
}
W=
is_switch_running || W="--no-wait"
- if ovs-vsctl br-exists "$bridge_name"; then
- ovs-vsctl $W del-br $bridge_name
+ if ovs-vsctl --db=unix:$DB_SOCKET br-exists "$bridge_name"; then
+ ovs-vsctl --db=unix:$DB_SOCKET $W del-br $bridge_name
fi
return 0
}
[[ -n "$@" ]] && error "Usage: ${COMMAND} del-port <port>"
set -e
- if ovs-vsctl port-to-br "$1" >/dev/null 2>&1; then
- ovs-vsctl del-port "$1"
+ if ovs-vsctl --db=unix:$DB_SOCKET port-to-br "$1" >/dev/null 2>&1; then
+ ovs-vsctl --db=unix:$DB_SOCKET del-port "$1"
fi
return 0
}
####################
-SUPPORTED_SUBCOMMANDS="start_db stop_db start_switch stop_switch status create_bridge create_port del_bridge del_port"
+SUPPORTED_SUBCOMMANDS="start stop status
+start_db stop_db start_switch stop_switch
+create_bridge create_port del_bridge del_port"
function main () {
message="Usage: $COMMAND <subcommand> ...