function get_params {
params=$1; shift
err_msg="$COMMAND $SUBCOMMAND $(echo $params | perl -pe 's/\S+/<$&>/g')"
- for p in $(echo $params); do
+ for p in $params; do
[[ -z "$@" ]] && error "$err_msg"
pname=$(echo -n $p|perl -pe 's/\W/_/g')
eval $pname="$1"; shift
#################### create functions
function create_bridge () {
- get_params "bridge IP/PREFIX" "$@"
+ get_params "bridge IP/PREFIX" "$1" "$2"
+ shift; shift;
IP=${IP_PREFIX%/*}
PREFIX=${IP_PREFIX#*/}
- # ensure ovs-vswitchd is running
- is_switch_running || { echo "ovs-vswitchd not running" >&2 ; exit 1 ; }
+ W=
+ if ! is_switch_running; then
+ # we can create the bridge even if ovs-vswitchd is not running,
+ # but we need a running ovsdb-server
+ is_db_running || { echo "ovsdb-server not running" >&2; exit 1; }
+ W="--no-wait"
+ fi
+
set -e
- ovs-vsctl --db=unix:$DB_SOCKET -- --may-exist add-br "$bridge" \
+ ovs-vsctl --db=unix:$DB_SOCKET $W -- --may-exist add-br "$bridge" \
-- set bridge "$bridge" datapath_type=planetlab \
- -- set interface "$bridge" options:local_ip="$IP" option:local_netmask="$PREFIX"
- ovs-appctl netdev-pltap/get-tapname "$bridge"
+ -- set interface "$bridge" options:local_ip="$IP" option:local_netmask="$PREFIX" \
+ -- "$@"
}
function create_port () {
get_params "bridge port" "$@"
+
+ W=
+ if ! is_switch_running; then
+ # we can create the port even if ovs-vswitchd is not running,
+ # but we need a running ovsdb-server
+ is_db_running || { echo "ovsdb-server not running" >&2; exit 1; }
+ W="--no-wait"
+ fi
- # ensure ovs-vswitchd is running
- is_switch_running || { echo "ovs-vswitchd not running" >&2 ; exit 1 ; }
+ set -e
+ ovs-vsctl --db=unix:$DB_SOCKET $W -- --may-exist add-port "$bridge" "$port" \
+ -- set interface "$port" type=tunnel
+}
+
+function get_local_endpoint () {
+
+ get_params "local_port" "$@"
+
+ is_switch_running || { echo "ovs-vswitchd not running" >&2; exit 1; }
set -e
- ovs-vsctl --db=unix:$DB_SOCKET -- --may-exist add-port "$bridge" "$port" -- set interface "$port" type=tunnel
- ovs-appctl --target=ovs-vswitchd netdev-tunnel/get-port "$port"
+ ovs-appctl --target=ovs-vswitchd netdev-tunnel/get-port "$local_port"
}
function set_remote_endpoint () {
get_params "local_port remote_ip remote_UDP_port" "$@"
- # ensure ovs-vswitchd is running
- is_switch_running || { echo "ovs-vswitchd not running" >&2 ; exit 1 ; }
+ W=
+ if ! is_switch_running; then
+ # we can store the info even if ovs-vswitchd is not running,
+ # but we need a running ovsdb-server
+ is_db_running || { echo "ovsdb-server not running" >&2; exit 1; }
+ W="--no-wait"
+ fi
set -e
- ovs-vsctl --db=unix:$DB_SOCKET set interface $local_port \
+ ovs-vsctl --db=unix:$DB_SOCKET $W set interface $local_port \
options:remote_ip=$remote_ip \
options:remote_port=$remote_UDP_port
}
ovs-vsctl --db=unix:$DB_SOCKET show
}
+function get_local_ip () {
+
+ get_params "bridge" "$@"
+
+ set -e
+ ovs-vsctl --db=unix:$DB_SOCKET br-exists "$bridge" || return
+ local ip=$(ovs-vsctl get interface "$bridge" options:local_ip)
+ local netmask=$(ovs-vsctl get interface "$bridge" options:local_netmask)
+ eval echo $ip/$netmask
+}
+
+function get_local_links () {
+
+ get_params "bridge" "$@"
+
+ set -e
+ ovs-vsctl --db=unix:$DB_SOCKET br-exists "$bridge" || return
+ ovs-vsctl --db=unix:$DB_SOCKET list-ifaces "$bridge"
+}
+
+function get_mac () {
+
+ get_params "bridge" "$@"
+
+ set -e
+ local tap=$(ovs-appctl netdev-pltap/get-tapname "$bridge")
+ ifconfig "$tap" | awk '/HWaddr/ { print $5 }'
+}
+
### for demos - connect to an ndnmap deployment to visualize links bandwidth
# this expects 3 arguments
# an interface name, L<id1>-<id2> based on your ids in conf.mk
SUPPORTED_SUBCOMMANDS="start stop status
start_db stop_db start_switch stop_switch
create_bridge create_port del_bridge del_port
-show set_remote_endpoint set_controller del_controller gmap_probe"
+show get_local_endpoint set_remote_endpoint
+set_controller del_controller gmap_probe
+get_local_ip get_local_links get_mac"
function main () {
message="Usage: $COMMAND <subcommand> ...