neutron-nec: Vendor code split

Neutron NEC plugin support is configured using DevStack external
plugin mechanism. The following needs to be added in local.conf:

Q_PLUGIN=nec
enable_plugin networking-nec https://git.openstack.org/stackforge/networking-nec

Also removes lib/neutron_thirdparty/trema and files/debs/trema.
DevStack external plugin for Trema Sliceable Switch is available
and the following is needed to enable it in DevStack.

enable_plugin trema-devstack-plugin https://github.com/nec-openstack/trema-devstack-plugin

Change-Id: If983b986355fcc0118b6e0446b3b295f23b3c40e
diff --git a/lib/neutron_plugins/nec b/lib/neutron_plugins/nec
index 3b1a257..9ea7338 100644
--- a/lib/neutron_plugins/nec
+++ b/lib/neutron_plugins/nec
@@ -1,131 +1,10 @@
 #!/bin/bash
-#
-# Neutron NEC OpenFlow plugin
-# ---------------------------
 
-# Save trace setting
-NEC_XTRACE=$(set +o | grep xtrace)
-set +o xtrace
+# This file is needed so Q_PLUGIN=nec will work.
 
-# Configuration parameters
-OFC_HOST=${OFC_HOST:-127.0.0.1}
-OFC_PORT=${OFC_PORT:-8888}
-
-OFC_API_HOST=${OFC_API_HOST:-$OFC_HOST}
-OFC_API_PORT=${OFC_API_PORT:-$OFC_PORT}
-OFC_OFP_HOST=${OFC_OFP_HOST:-$OFC_HOST}
-OFC_OFP_PORT=${OFC_OFP_PORT:-6633}
-OFC_DRIVER=${OFC_DRIVER:-trema}
-OFC_RETRY_MAX=${OFC_RETRY_MAX:-0}
-OFC_RETRY_INTERVAL=${OFC_RETRY_INTERVAL:-1}
-
-# Main logic
-# ---------------------------
-
-source $TOP_DIR/lib/neutron_plugins/ovs_base
-
-function neutron_plugin_create_nova_conf {
-    _neutron_ovs_base_configure_nova_vif_driver
-}
-
-function neutron_plugin_install_agent_packages {
-    # SKIP_OVS_INSTALL is useful when we want to use Open vSwitch whose
-    # version is different from the version provided by the distribution.
-    if [[ "$SKIP_OVS_INSTALL" = "True" ]]; then
-        echo "You need to install Open vSwitch manually."
-        return
-    fi
-    _neutron_ovs_base_install_agent_packages
-}
-
-function neutron_plugin_configure_common {
-    Q_PLUGIN_CONF_PATH=etc/neutron/plugins/nec
-    Q_PLUGIN_CONF_FILENAME=nec.ini
-    Q_PLUGIN_CLASS="neutron.plugins.nec.nec_plugin.NECPluginV2"
-}
-
-function neutron_plugin_configure_debug_command {
-    _neutron_ovs_base_configure_debug_command
-}
-
-function neutron_plugin_configure_dhcp_agent {
-    :
-}
-
-function neutron_plugin_configure_l3_agent {
-    _neutron_ovs_base_configure_l3_agent
-}
-
-function _quantum_plugin_setup_bridge {
-    if [[ "$SKIP_OVS_BRIDGE_SETUP" = "True" ]]; then
-        return
-    fi
-    # Set up integration bridge
-    _neutron_ovs_base_setup_bridge $OVS_BRIDGE
-    # Generate datapath ID from HOST_IP
-    local dpid=$(printf "%07d%03d%03d%03d\n" ${HOST_IP//./ })
-    sudo ovs-vsctl --no-wait set Bridge $OVS_BRIDGE other-config:datapath-id=$dpid
-    sudo ovs-vsctl --no-wait set-fail-mode $OVS_BRIDGE secure
-    sudo ovs-vsctl --no-wait set-controller $OVS_BRIDGE tcp:$OFC_OFP_HOST:$OFC_OFP_PORT
-    if [ -n "$OVS_INTERFACE" ]; then
-        sudo ovs-vsctl --no-wait -- --may-exist add-port $OVS_BRIDGE $OVS_INTERFACE
-    fi
-    _neutron_setup_ovs_tunnels $OVS_BRIDGE
-}
-
-function neutron_plugin_configure_plugin_agent {
-    _quantum_plugin_setup_bridge
-
-    AGENT_BINARY="$NEUTRON_BIN_DIR/neutron-nec-agent"
-
-    _neutron_ovs_base_configure_firewall_driver
-}
-
-function neutron_plugin_configure_service {
-    iniset $NEUTRON_CONF DEFAULT api_extensions_path neutron/plugins/nec/extensions/
-    iniset /$Q_PLUGIN_CONF_FILE ofc host $OFC_API_HOST
-    iniset /$Q_PLUGIN_CONF_FILE ofc port $OFC_API_PORT
-    iniset /$Q_PLUGIN_CONF_FILE ofc driver $OFC_DRIVER
-    iniset /$Q_PLUGIN_CONF_FILE ofc api_retry_max OFC_RETRY_MAX
-    iniset /$Q_PLUGIN_CONF_FILE ofc api_retry_interval OFC_RETRY_INTERVAL
-
-    _neutron_ovs_base_configure_firewall_driver
-}
-
-function neutron_plugin_setup_interface_driver {
-    local conf_file=$1
-    iniset $conf_file DEFAULT interface_driver neutron.agent.linux.interface.OVSInterfaceDriver
-    iniset $conf_file DEFAULT ovs_use_veth True
-}
-
-# Utility functions
-# ---------------------------
-
-# Setup OVS tunnel manually
-function _neutron_setup_ovs_tunnels {
-    local bridge=$1
-    local id=0
-    GRE_LOCAL_IP=${GRE_LOCAL_IP:-$HOST_IP}
-    if [ -n "$GRE_REMOTE_IPS" ]; then
-        for ip in ${GRE_REMOTE_IPS//:/ }; do
-            if [[ "$ip" == "$GRE_LOCAL_IP" ]]; then
-                continue
-            fi
-            sudo ovs-vsctl --no-wait add-port $bridge gre$id -- \
-                set Interface gre$id type=gre options:remote_ip=$ip
-            id=`expr $id + 1`
-        done
-    fi
-}
-
+# FIXME(amotoki): This function should not be here, but unfortunately
+# devstack calls it before the external plugins are fetched
 function has_neutron_plugin_security_group {
     # 0 means True here
     return 0
 }
-
-function neutron_plugin_check_adv_test_requirements {
-    is_service_enabled q-agt && is_service_enabled q-dhcp && return 0
-}
-
-# Restore xtrace
-$NEC_XTRACE
diff --git a/lib/neutron_thirdparty/trema b/lib/neutron_thirdparty/trema
deleted file mode 100644
index 075f013..0000000
--- a/lib/neutron_thirdparty/trema
+++ /dev/null
@@ -1,119 +0,0 @@
-#!/bin/bash
-#
-# Trema Sliceable Switch
-# ----------------------
-
-# Trema is a Full-Stack OpenFlow Framework in Ruby and C
-# https://github.com/trema/trema
-#
-# Trema Sliceable Switch is an OpenFlow controller which provides
-# virtual layer-2 network slices.
-# https://github.com/trema/apps/wiki
-
-# Trema Sliceable Switch (OpenFlow Controller)
-TREMA_APPS_REPO=${TREMA_APPS_REPO:-https://github.com/trema/apps.git}
-TREMA_APPS_BRANCH=${TREMA_APPS_BRANCH:-master}
-
-# Save trace setting
-TREMA3_XTRACE=$(set +o | grep xtrace)
-set +o xtrace
-
-TREMA_DIR=${TREMA_DIR:-$DEST/trema}
-TREMA_SS_DIR="$TREMA_DIR/apps/sliceable_switch"
-
-TREMA_DATA_DIR=${TREMA_DATA_DIR:-$DATA_DIR/trema}
-TREMA_SS_ETC_DIR=$TREMA_DATA_DIR/sliceable_switch/etc
-TREMA_SS_DB_DIR=$TREMA_DATA_DIR/sliceable_switch/db
-TREMA_SS_SCRIPT_DIR=$TREMA_DATA_DIR/sliceable_switch/script
-TREMA_TMP_DIR=$TREMA_DATA_DIR/trema
-
-TREMA_LOG_LEVEL=${TREMA_LOG_LEVEL:-info}
-
-TREMA_SS_CONFIG=$TREMA_SS_ETC_DIR/sliceable.conf
-TREMA_SS_APACHE_CONFIG=$(apache_site_config_for sliceable_switch)
-
-# configure_trema - Set config files, create data dirs, etc
-function configure_trema {
-    # prepare dir
-    for d in $TREMA_SS_ETC_DIR $TREMA_SS_DB_DIR $TREMA_SS_SCRIPT_DIR; do
-        sudo mkdir -p $d
-        sudo chown -R `whoami` $d
-    done
-    sudo mkdir -p $TREMA_TMP_DIR
-}
-
-# init_trema - Initialize databases, etc.
-function init_trema {
-    local _pwd=$(pwd)
-
-    # Initialize databases for Sliceable Switch
-    cd $TREMA_SS_DIR
-    rm -f filter.db slice.db
-    ./create_tables.sh
-    mv filter.db slice.db $TREMA_SS_DB_DIR
-    # Make sure that apache cgi has write access to the databases
-    sudo chown -R www-data.www-data $TREMA_SS_DB_DIR
-    cd $_pwd
-
-    # Setup HTTP Server for sliceable_switch
-    cp $TREMA_SS_DIR/{Slice.pm,Filter.pm,config.cgi} $TREMA_SS_SCRIPT_DIR
-    sed -i -e "s|/home/sliceable_switch/db|$TREMA_SS_DB_DIR|" \
-        $TREMA_SS_SCRIPT_DIR/config.cgi
-
-    sudo cp $TREMA_SS_DIR/apache/sliceable_switch $TREMA_SS_APACHE_CONFIG
-    sudo sed -i -e "s|/home/sliceable_switch/script|$TREMA_SS_SCRIPT_DIR|" \
-        $TREMA_SS_APACHE_CONFIG
-    # TODO(gabriel-bezerra): use some function from lib/apache to enable these modules
-    sudo a2enmod rewrite actions
-    enable_apache_site sliceable_switch
-
-    cp $TREMA_SS_DIR/sliceable_switch_null.conf $TREMA_SS_CONFIG
-    sed -i -e "s|^\$apps_dir.*$|\$apps_dir = \"$TREMA_DIR/apps\"|" \
-        -e "s|^\$db_dir.*$|\$db_dir = \"$TREMA_SS_DB_DIR\"|" \
-        $TREMA_SS_CONFIG
-}
-
-function gem_install {
-    [[ "$OFFLINE" = "True" ]] && return
-    [ -n "$RUBYGEMS_CMD" ] || get_gem_command
-
-    local pkg=$1
-    $RUBYGEMS_CMD list | grep "^${pkg} " && return
-    sudo $RUBYGEMS_CMD install $pkg
-}
-
-function get_gem_command {
-    # Trema requires ruby 1.8, so gem1.8 is checked first
-    RUBYGEMS_CMD=$(which gem1.8 || which gem)
-    if [ -z "$RUBYGEMS_CMD" ]; then
-        echo "Warning: ruby gems command not found."
-    fi
-}
-
-function install_trema {
-    # Trema
-    gem_install trema
-    # Sliceable Switch
-    git_clone $TREMA_APPS_REPO $TREMA_DIR/apps $TREMA_APPS_BRANCH
-    make -C $TREMA_DIR/apps/topology
-    make -C $TREMA_DIR/apps/flow_manager
-    make -C $TREMA_DIR/apps/sliceable_switch
-}
-
-function start_trema {
-    restart_apache_server
-
-    sudo LOGGING_LEVEL=$TREMA_LOG_LEVEL TREMA_TMP=$TREMA_TMP_DIR \
-        trema run -d -c $TREMA_SS_CONFIG
-}
-
-function stop_trema {
-    sudo TREMA_TMP=$TREMA_TMP_DIR trema killall
-}
-
-function check_trema {
-    :
-}
-
-# Restore xtrace
-$TREMA3_XTRACE