module ipv6-packet {
  yang-version 1;
  namespace "urn:opendaylight:packet:ipv6";
  prefix ipv6;

  import ietf-inet-types {
    prefix inet;
    revision-date 2013-07-15;
  }

  import base-packet {
    prefix bpacket;
    revision-date 2014-05-28;
  }

  import ipv4-packet {
    prefix ipv4;
    revision-date 2014-05-28;
  }

  revision 2014-05-28 {
    description
      "IPv6 packet module draft.";
  }

  grouping ipv6-packet-fields {
    leaf version {
      type uint8;
    }

    leaf dscp {
      type inet:dscp;
      description "Differentiated Code Services Point";
    }

    leaf ecn {
      type uint8;
      description "Explicit Congestion Notification";
    }

    leaf flow-label {
      type uint32;
      description "Flow label";
    }

    leaf ipv6-length {
      type uint16;
      description "Payload size including any extension headers, in octets";
    }

    leaf next-header {
      type ipv4:known-ip-protocols;
      description "Type of the next header or Transport layer protocol used by the payload";
    }

    leaf hop-limit {
      type uint8;
      description "Hop Limit, the IPv6 version of Time to live";
    }

    leaf source-ipv6 {
      type inet:ipv6-address;
    }

    leaf destination-ipv6 {
      type inet:ipv6-address;
    }

    list extension-headers {
      leaf next-header {
        type ipv4:known-ip-protocols;
        description "Type of this extension header";
      }

      leaf length {
        type uint16;
        description "Length of this extension header, in octets";
      }

      leaf data {
        type binary;
        description "Data for this extension header";
      }
    }

    uses bpacket:packet-fields;
  }

  notification ipv6-packet-received {
    uses bpacket:packet-chain-grp {
      augment "packet-chain/packet" {
        case ipv6-packet {
          uses ipv6-packet-fields;
        }
      }
    }
    uses bpacket:packet-payload;
  }
}