#!/bin/bash
 #

 # Neutron Linux Bridge L2 agent
 # -----------------------------
 
 # Save trace setting

 _XTRACE_NEUTRON_LB=$(set +o | grep xtrace)

 set +o xtrace
 

 function neutron_lb_cleanup {

     sudo ip link set $PUBLIC_BRIDGE down

     sudo brctl delbr $PUBLIC_BRIDGE

 
     if [[ "$Q_ML2_TENANT_NETWORK_TYPE" = "vxlan" ]]; then
         for port in $(sudo brctl show | grep -o -e [a-zA-Z\-]*tap[0-9a-f\-]* -e vxlan-[0-9a-f\-]*); do
             sudo ip link delete $port
         done
     elif [[ "$Q_ML2_TENANT_NETWORK_TYPE" = "vlan" ]]; then
         for port in $(sudo brctl show | grep -o -e [a-zA-Z\-]*tap[0-9a-f\-]* -e ${LB_PHYSICAL_INTERFACE}\.[0-9a-f\-]*); do
             sudo ip link delete $port
         done
     fi
     for bridge in $(sudo brctl show |grep -o -e brq[0-9a-f\-]*); do
         sudo ip link set $bridge down
         sudo brctl delbr $bridge
     done

 }
 

 function is_neutron_ovs_base_plugin {
     # linuxbridge doesn't use OVS
     return 1
 }
 
 function neutron_plugin_create_nova_conf {
     :
 }
 
 function neutron_plugin_install_agent_packages {
     install_package bridge-utils
 }
 
 function neutron_plugin_configure_dhcp_agent {

     local conf_file=$1

     :

 }
 
 function neutron_plugin_configure_l3_agent {

     local conf_file=$1

     sudo brctl addbr $PUBLIC_BRIDGE

     set_mtu $PUBLIC_BRIDGE $PUBLIC_BRIDGE_MTU

     iniset $conf_file DEFAULT external_network_bridge

 }
 
 function neutron_plugin_configure_plugin_agent {
     # Setup physical network interface mappings.  Override
     # ``LB_VLAN_RANGES`` and ``LB_INTERFACE_MAPPINGS`` in ``localrc`` for more
     # complex physical network configurations.
     if [[ "$LB_INTERFACE_MAPPINGS" == "" ]] && [[ "$PHYSICAL_NETWORK" != "" ]] && [[ "$LB_PHYSICAL_INTERFACE" != "" ]]; then
         LB_INTERFACE_MAPPINGS=$PHYSICAL_NETWORK:$LB_PHYSICAL_INTERFACE
     fi

     if [[ "$PUBLIC_BRIDGE" != "" ]] && [[ "$PUBLIC_PHYSICAL_NETWORK" != "" ]]; then

         if is_service_enabled q-l3 || is_service_enabled neutron-l3; then
             iniset /$Q_PLUGIN_CONF_FILE linux_bridge bridge_mappings "$PUBLIC_PHYSICAL_NETWORK:$PUBLIC_BRIDGE"
         fi

     fi

     if [[ "$LB_INTERFACE_MAPPINGS" != "" ]]; then
         iniset /$Q_PLUGIN_CONF_FILE linux_bridge physical_interface_mappings $LB_INTERFACE_MAPPINGS
     fi
     if [[ "$Q_USE_SECGROUP" == "True" ]]; then
         iniset /$Q_PLUGIN_CONF_FILE securitygroup firewall_driver neutron.agent.linux.iptables_firewall.IptablesFirewallDriver

         enable_kernel_bridge_firewall

     else
         iniset /$Q_PLUGIN_CONF_FILE securitygroup firewall_driver neutron.agent.firewall.NoopFirewallDriver
     fi
     AGENT_BINARY="$NEUTRON_BIN_DIR/neutron-linuxbridge-agent"
     iniset /$Q_PLUGIN_CONF_FILE agent tunnel_types $Q_TUNNEL_TYPES

 
     # Configure vxlan tunneling
     if [[ "$ENABLE_TENANT_TUNNELS" == "True" ]]; then
         if [[ "$Q_ML2_TENANT_NETWORK_TYPE" == "vxlan" ]]; then
             iniset /$Q_PLUGIN_CONF_FILE vxlan enable_vxlan "True"
             iniset /$Q_PLUGIN_CONF_FILE vxlan local_ip $TUNNEL_ENDPOINT_IP
         else
             iniset /$Q_PLUGIN_CONF_FILE vxlan enable_vxlan "False"
         fi
     else
         iniset /$Q_PLUGIN_CONF_FILE vxlan enable_vxlan "False"
     fi

 }
 
 function neutron_plugin_setup_interface_driver {
     local conf_file=$1

     iniset $conf_file DEFAULT interface_driver linuxbridge

 }
 
 function neutron_plugin_check_adv_test_requirements {
     is_service_enabled q-agt && is_service_enabled q-dhcp && return 0
 }
 
 # Restore xtrace

 $_XTRACE_NEUTRON_LB