module huawei-multicast-bas {

    yang-version 1;

    namespace
      "urn:huawei:yang:huawei-multicast-bas";

    prefix mcbas;

    import huawei-ifm {
      prefix ifm;
    }
    import huawei-extension {
      prefix ext;
    }
    import huawei-bras-basic-access {
      prefix bras-basic-access;
    }
    import huawei-network-instance {
      prefix ni;
    }
    import huawei-l3vpn {
      prefix l3vpn;
    }

    organization
      "Huawei Technologies Co., Ltd.";

    contact
      "Huawei Industrial Base
Bantian, Longgang
Shenzhen 518129
People's Republic of China
Website: http://www.huawei.com
Email: support@huawei.com";

    description "Multicast for BRAS access.";

    revision "2020-03-16" {
      description
        "Modify addr-family-type enumeration name.";
      reference
        "Huawei private.";

    }

    revision "2019-03-30" {
      description "Init revision.";
      reference
        "Huawei private.";

    }

    ext:task-name "mcast-base";

    typedef addr-family-type {
      type enumeration {
        enum "ipv4-unicast" {
          value 1;
          description "IPv4 unicast.";
        }
        enum "ipv6-unicast" {
          value 2;
          description "IPv6 unicast.";
        }
      }
      description "Address family.";
    }

    augment /ifm:ifm/ifm:interfaces/ifm:interface {
      description
        "Add multicast BAS configuration to the ifm module.";
      container multicast-bas {
        must
          "(./mcbas:user-aggregation-pevlan and ./mcbas:user-aggregation-cevlan) or (not(./mcbas:user-aggregation-pevlan) and not(./mcbas:user-aggregation-cevlan))";
        description
          "Configure multicast BAS.";
        choice vlan-type {
          description
            "Specify the VLAN-type of multicast BAS user-aggregation.";
          case qinq {
            description "QinQ type.";
            leaf user-aggregation-pevlan {
              type uint32 {
                range "1..4094";
              }
              description
                "QINQ PE ID in an outer VLAN tag.";
            }

            leaf user-aggregation-cevlan {
              type uint32 {
                range "1..4094";
              }
              description
                "QINQ CE ID in an inner VLAN tag.";
            }
          }  // case qinq

          case vlan {
            description "VLAN type.";
            leaf user-aggregation-vlan {
              type uint32 {
                range "1..4094";
              }
              description
                "VLAN ID in an outer VLAN tag.";
            }
          }  // case vlan
        }  // choice vlan-type

        leaf copy-by-session-enable {
          when
            "../../bras-basic-access:bas/bras-basic-access:layer2-subscriber or ../../bras-basic-access:bas/bras-basic-access:layer2-leaseline or ../../bras-basic-access:bas/bras-basic-access:layer3-subscriber or ../../bras-basic-access:bas/bras-basic-access:layer3-leaseline or ../../bras-basic-access:bas/bras-basic-access:l2vpn-leaseline";
          type boolean;
          default "false";
          description
            "Enable/disable multicast copy by-session.";
        }

        leaf copy-by-vlan-enable {
          when
            "../../bras-basic-access:bas/bras-basic-access:layer2-subscriber or ../../bras-basic-access:bas/bras-basic-access:layer2-leaseline or ../../bras-basic-access:bas/bras-basic-access:layer3-subscriber or ../../bras-basic-access:bas/bras-basic-access:layer3-leaseline or ../../bras-basic-access:bas/bras-basic-access:l2vpn-leaseline";
          type boolean;
          default "false";
          description
            "Enable/disable multicast copy by-VLAN.";
        }

        leaf authorization-enable {
          type boolean;
          default "false";
          description
            "Enable/disable authorization.";
        }

        leaf igmp-query-auto-send-enable {
          when
            "../../bras-basic-access:bas/bras-basic-access:layer2-subscriber or ../../bras-basic-access:bas/bras-basic-access:layer2-leaseline or ../../bras-basic-access:bas/bras-basic-access:layer3-subscriber or ../../bras-basic-access:bas/bras-basic-access:layer3-leaseline or ../../bras-basic-access:bas/bras-basic-access:l2vpn-leaseline";
          type boolean;
          default "false";
          description
            "Enable/disable IGMP to send query message automatically.";
        }

        container binding-vpn-instances {
          description
            "List of multicast binding vpn-instance configurations.";
          list binding-vpn-instance {
            key "name address-family";
            description
              "Configure multicast binding vpn-instance.";
            leaf name {
              type leafref {
                path
                  "/ni:network-instance/ni:instances/ni:instance/ni:name";
              }
              must "../name!='_public_'";
              description "VPN instance.";
            }

            leaf address-family {
              type addr-family-type;
              must
                "../address-family='ipv4-unicast' or ../../../../ifm:type='Virtual-Template'";
              must
                "/ni:network-instance/ni:instances/ni:instance[ni:name = current()/../name]/l3vpn:afs/l3vpn:af[l3vpn:type=current()]";
              description
                "Address family, which determines whether an address belongs to IPv4 or IPv6.";
            }
          }  // list binding-vpn-instance
        }  // container binding-vpn-instances
      }  // container multicast-bas
    }
  }  // module huawei-multicast-bas