module v3po {
  yang-version 1;
  namespace "urn:opendaylight:params:xml:ns:yang:v3po";
  prefix "v3po";

  revision "2015-01-05" {
    description "Initial revision of v3po model";
  }

  import iana-if-type {
    prefix "ianaift";
  }
  import ietf-interfaces {
    prefix "if";
  }
  import ietf-yang-types {
    prefix "yang";
  }
  import ietf-inet-types {
    prefix "inet";
  }
  import ietf-ip {
    prefix "ip";
  }
  import yang-ext {
    prefix "ext";
  }

  typedef bridge-domain-ref {
    type leafref {
      path "/vpp/bridge-domains/bridge-domain/name";
    }
    description
      "This type is used by to reference a bridge domain table";
  }

  typedef bridged-virtual-interface-ref {
    type leafref {
      path "/if:interfaces/if:interface/l2/bridged-virtual-interface";
    }
    description
      "This type is used by to reference a bridged virtual interface";
  }

  identity vxlan-tunnel {
    base if:interface-type;
  }

  augment /if:interfaces/if:interface {
    ext:augment-identifier "vpp-interface-augmentation";
    container ethernet {
      when "../if:type = 'ianaift:ethernetCsmacd'";
      leaf mtu {
        type uint16 {
          range "64..9216";
        }
        units "octets";
        default 9216;
        description
        "The size, in octets, of the largest packet that the
         hardware interface will send and receive.";
      }
    }
    container routing {
      leaf vrf-id {
        type uint32;
        default 0;
      }
    }
    container vxlan {
      when "../if:type = 'v3po:vxlan-tunnel'";

      leaf src {
        /* mandatory true; */
        type inet:ipv4-address;
      }
      leaf dst {
        /* mandatory true; */
        type inet:ipv4-address;
      }
      leaf vni {
        /* mandatory true; */
        type uint32;
      }
      leaf encap-vrf-id {
        type uint32;
      }
    }
    container l2 {
      description 
      "Parameters for configuring Layer2 features on interfaces.";
      must "(not (../if:ipv4[if:enabled = 'true']/if:address/if:ip) and " +
      "not (../if:ipv6[if:enabled = 'true']/if:address/if:ip))";

      choice interconnection {
        case xconnect-based {
          leaf xconnect-outgoing-interface {
            /* Don't allow selection of this interface */
            must "../../if:name != current()";
            type if:interface-ref;
            description
              "L2 xconnect mode";
          }
        }
        case bridge-based {
          leaf bridge-domain {
            type bridge-domain-ref;
            description
              "Interfaces in a bridge-domain forward packets to other
               interfaces in the same bridge-domain based on
               destination mac address.";
          }
          leaf split-horizon-group {
            when "../bridge-domain";
            type uint8 {
              range "0..255";
            }
            default 0;
            description
              "Interface's split-horizon group. Interfaces in the same
               bridge-domain and split-horizon group can not forward
               packets between each other. ";
          }
          leaf bridged-virtual-interface {
            when "../bridge-domain";
            type boolean;
            default false;
            description
              "Interface forward packets in the bridge-domain
               associated with the BVI.";
          }
        }
      }
    }
  }

  container vpp {
    description
    "VPP config data";

    container bridge-domains {
      list bridge-domain {
        key "name";
        max-elements 1024;

        leaf name {
          type string;
        }
        leaf flood {
          type boolean;
          default true;
          description
          "Enable/disable L2 flooding.";
        }
        leaf forward {
          type boolean;
          default true;
          description
          "Enable/disable L2 forwarding.";
        }
        leaf learn {
          type boolean;
          default true;
          description
          "Enable/disable L2 learning.";
        }
        leaf unknown-unicast-flood {
          type boolean;
          default true;
        }
        leaf arp-termination {
          type boolean;
          default false;
        }
        list l2-fib {
          key "phys-address";
          
          leaf phys-address {
            type yang:phys-address;
          }
          leaf action {
            type enumeration {
              enum "forward";
              enum "filter";
            }
            mandatory true;
          }
          leaf outgoing-interface {
            type if:interface-ref;
          }
        }
      }
    }
  }

  augment /if:interfaces-state/if:interface {
    ext:augment-identifier "vpp-interface-state-augmentation";

    leaf description {
      type string;
    }
    container ethernet {
      when "../if:type = 'ianaift:ethernetCsmacd'";
      leaf mtu {
        type uint16;
      }
      leaf manufacturer-description {
        type string;
      }
      leaf duplex {
        type enumeration {
          enum "half";
          enum "full";
        }
      }
    }
    container vxlan {
      when "../if:type = 'v3po:vxlan-tunnel'";

      leaf src {
        type inet:ipv4-address;
      }
      leaf dst {
        type inet:ipv4-address;
      }
      leaf vni {
        type uint32;
      }
      leaf encap-vrf-id {
        type uint32;
      }
    }
    container l2 {
      choice interconnection {
        case xconnect-based {
          leaf xconnect-outgoing-interface {
            type if:interface-ref;
          }
        }
        case bridge-based {
          leaf bridge-domain {
            type bridge-domain-ref;
          }
          leaf split-horizon-group {
            type uint8;
          }
          leaf bridged-virtual-interface {
            type boolean;
          }
        }
      }
    }
  }

  augment /if:interfaces-state/if:interface/if:statistics {
    ext:augment-identifier "vpp-interface-statistics-augmentation";
    leaf in-errors-no-buf {
      type yang:counter64;
    }
    leaf in-errors-miss {
      type yang:counter64;
    }
    leaf out-discards-fifo-full {
      type yang:counter64;
    }
  }

  container vpp-state {
    config false;

    description
      "VPP operational data";

    container bridge-domains {
      list bridge-domain {
        
        key "name";
        leaf name {
          type string;
        }
        leaf flood {
          type boolean;
        }
        leaf unknown-unicast-flood {
          type boolean;
        }
        leaf arp-termination {
          type boolean;
        }
        leaf forward {
          type boolean;
        }
        leaf learn {
          type boolean;
        }
        list interface {
          key "name";

          leaf name {
            type if:interface-state-ref;
          }

          leaf split-horizon-group {
            type uint8;
          }

          leaf bridged-virtual-interface {
            type boolean;
          }
        }
        list l2-fib {
          key "phys-address";

          leaf phys-address {
            type yang:phys-address;
          }
          leaf static-config {
            type boolean;
          }
          leaf outgoing-interface {
            when "../v3po:action = 'forward'";
            type if:interface-state-ref;
          }
          leaf action {
            type enumeration {
              enum "forward";
              enum "filter";
            }
            mandatory true;
          }
          leaf bridged-virtual-interface {
            when "../v3po:action = 'forward'";
            type boolean;
          }
        }
        description 
          "bridge-domain operational data";
      }
    }
    
    container version {
      leaf name {
        type string;
      }
      leaf build-directory {
        type string;
      }
      leaf build-date {
        type string;
      }
      leaf branch {
        type string;
      }
      description
      "vlib version info";
    }
  }
    
  rpc vpp-poll-oper-data {
    output {
      leaf status {
        type uint32;
      }
    }
  }
}