module ietf-pim-sm {

    yang-version 1;

    namespace
      "urn:ietf:params:xml:ns:yang:ietf-pim-sm";

    prefix pim-sm;

    import ietf-inet-types {
      prefix inet;
    }
    import ietf-routing {
      prefix rt;
    }
    import ietf-pim-base {
      prefix pim-base;
    }
    import ietf-pim-rp {
      prefix pim-rp;
    }

    organization "IETF PIM Working Group";

    contact
      "WG Web:   <http://tools.ietf.org/wg/pim/>
     WG List:  <mailto:pim@ietf.org>
     WG Chair: Stig Venaas
               <mailto:stig@venaas.com>
     WG Chair: Mike McBride
               <mailto:mmcbride7@gmail.com>
     Editor:   Xufeng Liu
               <mailto:Xufeng_Liu@jabil.com>
     Editor:   Pete McAllister
               <mailto:pete.mcallister@metaswitch.com>
     Editor:   Anish Peter
               <mailto:anish.ietf@gmail.com>
     Editor:   Mahesh Sivakumar
               <mailto:masivaku@cisco.com>
     Editor:   Yisong Liu
               <mailto:liuyisong@huawei.com>
     Editor:   Fangwei Hu
               <mailto:hu.fangwei@zte.com.cn>";

    description
      "The YANG module defines a PIM (Protocol Independent Multicast)
     SM (Sparse Mode) model.";

    revision "2017-03-09" {
      description "Initial revision.";
      reference
        "RFC XXXX: A YANG Data Model for PIM";

    }


    feature spt-switch-infinity {
      description
        "This feature indicates that the system supports configuration
       choice whether to trigger the switchover from the RPT
       (Rendezvous Point Tree) to the SPT (Shortest Path Tree).";
    }

    feature spt-switch-policy {
      description
        "This feature indicates that the system supports configuring
       policy for the switchover from the RPT to the SPT.";
    }

    identity sm {
      base pim-rp:rp-mode;
      description "SM (Sparse Mode).";
    }

    grouping af-sm-container {
      description
        "Grouping of address family SM container.";
      container sm {
        description
          "PIM SM configuration data.";
        container asm {
          description
            "ASM (Any Source Multicast) attributes.";
          container anycast-rp {
            presence
              "Present to enable anycast RP (Rendezvous Point).";
            description
              "Anycast RP attributes.";
            container ipv4 {
              when
                "../../../../pim-base:address-family = 'rt:ipv4'" {
                description
                  "Only applicable to IPv4 address family.";
              }
              description
                "IPv4 attributes. Only applicable when
               pim-base:address-family is IPv4.";
              list ipv4-anycast-rp {
                key "anycast-address rp-address";
                description
                  "A list of anycast RP settings.";
                leaf anycast-address {
                  type inet:ipv4-address;
                  description
                    "IP address of the anycast RP set. This IP address
                   is used by the multicast groups or sources to join
                   or register.";
                }

                leaf rp-address {
                  type inet:ipv4-address;
                  description
                    "IP address of the router configured with anycast
                   RP. This is the IP address where the Register
                   messages are forwarded.";
                }
              }  // list ipv4-anycast-rp
            }  // container ipv4

            container ipv6 {
              when
                "../../../../pim-base:address-family = 'rt:ipv6'" {
                description
                  "Only applicable to IPv6 address family.";
              }
              description
                "IPv6 attributes. Only applicable when
               pim-base:address-family is IPv6.";
              list ipv6-anycast-rp {
                key "anycast-address rp-address";
                description
                  "A list of anycast RP settings.";
                leaf anycast-address {
                  type inet:ipv6-address;
                  description
                    "IP address of the anycast RP set. This IP address
                   is used by the multicast groups or sources to join
                   or register.";
                }

                leaf rp-address {
                  type inet:ipv6-address;
                  description
                    "IP address of the router configured with anycast
                   RP. This is the IP address where the Register
                   messages are forwarded.";
                }
              }  // list ipv6-anycast-rp
            }  // container ipv6
          }  // container anycast-rp

          container spt-switch {
            description
              "SPT (Shortest Path Tree) switching attributes.";
            container infinity {
              if-feature spt-switch-infinity;
              presence
                "Present if SPT switchover threshold is set to
               infinity, according to the policy specified below.";
              description
                "The receiver's DR (Designated Router) never triggers
               the switchover from the RPT to the SPT.";
              leaf policy-name {
                if-feature spt-switch-policy;
                type string;
                description "Switch policy.";
              }
            }  // container infinity
          }  // container spt-switch
        }  // container asm

        container ssm {
          presence
            "Present to enable SSM (Source-Specific Multicast).";
          description
            "SSM (Source-Specific Multicast) attributes.";
          leaf range-policy {
            type string;
            description
              "Policy used to define SSM address range.";
          }
        }  // container ssm
      }  // container sm
    }  // grouping af-sm-container

    grouping interface-sm-container {
      description
        "Grouping of interface SM container.";
      container sm {
        presence
          "Present to enable sparse-mode.";
        description
          "PIM SM configuration data.";
        leaf passive {
          type empty;
          description
            "Specifies that no PIM messages are sent or accepted on
           this PIM interface, but the interface can be included in a
           multicast forwarding entry.";
        }
      }  // container sm
    }  // grouping interface-sm-container

    grouping static-rp-sm-container {
      description
        "Grouping that contains SM attributes for static RP.";
      container sm {
        presence
          "Indicate the support of sparse mode.";
        description
          "PIM SM configuration data.";
        uses pim-rp:static-rp-attributes;
      }  // container sm
    }  // grouping static-rp-sm-container

    augment /rt:routing/rt:control-plane-protocols/pim-base:pim/pim-base:address-family {
      description "PIM SM augmentation.";
      uses af-sm-container;
    }

    augment /rt:routing/rt:control-plane-protocols/pim-base:pim/pim-base:interfaces/pim-base:interface/pim-base:address-family {
      description "PIM SM augmentation.";
      uses interface-sm-container;
    }

    augment /rt:routing/rt:control-plane-protocols/pim-base:pim/pim-base:address-family/pim-rp:rp/pim-rp:static-rp/pim-rp:ipv4-rp {
      description "PIM SM augmentation.";
      uses static-rp-sm-container;
    }

    augment /rt:routing/rt:control-plane-protocols/pim-base:pim/pim-base:address-family/pim-rp:rp/pim-rp:static-rp/pim-rp:ipv6-rp {
      description "PIM SM augmentation.";
      uses static-rp-sm-container;
    }

    augment /rt:routing-state/rt:control-plane-protocols/pim-base:pim/pim-base:address-family {
      description "PIM SM state.";
      uses af-sm-container;
    }

    augment /rt:routing-state/rt:control-plane-protocols/pim-base:pim/pim-base:interfaces/pim-base:interface/pim-base:address-family {
      description "PIM SM augmentation.";
      uses interface-sm-container;
    }

    augment /rt:routing-state/rt:control-plane-protocols/pim-base:pim/pim-base:address-family/pim-rp:rp/pim-rp:static-rp/pim-rp:ipv4-rp {
      description "PIM SM augmentation.";
      uses static-rp-sm-container;
    }

    augment /rt:routing-state/rt:control-plane-protocols/pim-base:pim/pim-base:address-family/pim-rp:rp/pim-rp:static-rp/pim-rp:ipv6-rp {
      description "PIM SM augmentation.";
      uses static-rp-sm-container;
    }
  }  // module ietf-pim-sm