module fujitsu-dhcpv6-client {

    yang-version 1;

    namespace
      "urn:fujitsu:params:xml:ns:dhcpv6-client-ext";

    prefix fujitsu-dhcpv6;

    import ietf-inet-types {
      prefix inet;
    }
    import dhcpv6-client {
      prefix dhcpv6;
    }
    import ietf-interfaces {
      prefix if;
    }
    import ietf-ip {
      prefix ip;
    }
    import fujitsu-system {
      prefix sys;
    }
    import ietf-yang-types {
      prefix yang;
      revision-date "2013-07-15";
    }

    organization "Fujitsu Ltd.";

    contact
      "Fujitsu Ltd.
     
     Address: 2801 Telecom Parkway
     Richardson, Texas 75082
     
     Tel: +1-800-USE-FTAC (1-800-873-3822)
     Email: ftac@fnc.fujitsu.com
     Web: www.fujitsu.com/us/services/telecom";

    description
      "This module is used to add dhcp client status in base yang.
     Copyright (c) 2016 Fujitsu Ltd.
     All rights reserved. ";

    revision "2018-10-09" {
      description
        "Added oper support for client-identifier";
    }

    revision "2018-01-22" {
      description
        "Changed filename, module name, and prefix";
    }

    revision "2018-01-08" {
      description
        "String pattern defined for dhcpv6 client-intf name.";
    }

    revision "2017-08-09" {
      description "duid attribute removal.";
    }

    revision "2017-07-07" {
      description
        "Yang optimization changes.";
    }

    revision "2016-04-05";

    augment /dhcpv6:clientv6 {
      container dhcpv6ClientStatus {
        list client-if {
          key "if-name";
          config false;
          leaf if-name {
            type string;
            mandatory true;
            description "interface name";
          }

          container identity-associations {
            config false;
            description
              "IA is a construct through
             which a server and a client can identify,
             group, and manage a set of related IPv6
             addresses. The key of the list is a
             4-byte number IAID defined in [RFC3315].";
            list identity-association {
              key "iaid";
              description "IA";
              leaf iaid {
                type uint32;
                mandatory true;
                description "IAID";
              }

              leaf ia-type {
                type string;
                mandatory true;
                description "IA type";
              }

              leaf-list ipv6-addr {
                type inet:ipv6-address;
                description "ipv6 address";
              }

              leaf t1-time {
                type yang:timeticks;
                mandatory true;
                description "t1 time";
              }

              leaf t2-time {
                type yang:timeticks;
                mandatory true;
                description "t2 time";
              }

              leaf preferred-lifetime {
                type yang:timeticks;
                mandatory true;
                description
                  "preferred lifetime";
              }

              leaf valid-lifetime {
                type yang:timeticks;
                mandatory true;
                description "valid lifetime";
              }

              leaf client-identifier {
                type string;
                mandatory true;
                description
                  "DHCP client identifier sent in the DHCP messages";
                reference
                  "RFC 3315, Section 22.2";

              }
            }  // list identity-association
          }  // container identity-associations
        }  // list client-if
      }  // container dhcpv6ClientStatus
    }

    augment /dhcpv6:clientv6 {
      list client-if {
        key "if-name";
        description
          "A client may have several
         interfaces, it is more reasonable to
         configure and manage parameters on
         the interface-level. The list defines
         specific client interfaces and their
         data. Different interfaces are distinguished
         by the key which is a configurable string
         value.";
        leaf if-name {
          type string {
            pattern
              "ip-(1|200)/0/0/(LCN1|LCN2|LCN)";
          }
          mandatory true;
          description "interface name";
        }

        leaf enable {
          type boolean;
          must
            "(((current() = 'false') and  (((count (/if:interfaces/if:interface[if:name=current()/../if-name]/ip:ipv6/ip:address) > 0) and  (/if:interfaces/if:interface[if:name=current()/../if-name]/ip:ipv6/ip:enabled = 'true'))))or (current() = 'true'))" {
            error-message
              "No Static IPV6 address assigned/Enabled for this interface";
          }
          mandatory true;
          description
            "whether the interface is enabled";
        }

        leaf rapid-commit {
          type boolean;
          mandatory true;
          description
            "'1' indicates a client can
           initiate a Solicit-Reply message exchange
           by adding a Rapid Commit option in Solicit
           message. '0' means the client is not allowed
           to add a Rapid Commit option to request
           addresses in a two-message exchange
           pattern.";
        }
      }  // list client-if
    }
  }  // module fujitsu-dhcpv6-client