// SPDX-License-Identifier: BSD-2-Clause
module frr-staticd {
  yang-version 1.1;
  namespace "http://frrouting.org/yang/staticd";
  prefix frr-staticd;

  import frr-routing {
    prefix frr-rt;
  }

  import frr-nexthop {
    prefix frr-nexthop;
  }

  import ietf-inet-types {
    prefix inet;
  }

  import frr-bfdd {
    prefix frr-bfdd;
  }

  import frr-vrf {
    prefix frr-vrf;
  }

  organization
    "FRRouting";
  contact
    "FRR Users List: <mailto:frog@lists.frrouting.org>
     FRR Development List: <mailto:dev@lists.frrouting.org>";
  description
    "This module defines a model for managing FRR staticd information.
     This YANG module augments the ietf-routing with additional
     nexthop information

     Copyright 2020 FRRouting

     Redistribution and use in source and binary forms, with or without
     modification, are permitted provided that the following conditions
     are met:

     1. Redistributions of source code must retain the above copyright notice,
     this list of conditions and the following disclaimer.

     2. Redistributions in binary form must reproduce the above copyright
     notice, this list of conditions and the following disclaimer in the
     documentation and/or other materials provided with the distribution.

     THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     \"AS IS\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
     SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
     LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.";

  revision 2019-12-03 {
    description
      "Initial revision.";
  }

  identity staticd {
    base frr-rt:routing-protocol;
    description
      "'Staticd' routing pseudo-protocol.";
  }

  grouping staticd-prefix-attributes {
    list path-list {
      key "table-id distance";
      leaf table-id {
        type uint32;
        description
          "Table-id";
      }

      leaf distance {
        type frr-rt:administrative-distance;
        description
          "Admin distance associated with this route.";
      }

      leaf tag {
        type uint32;
        default "0";
        description
          "Route tag";
      }

      uses frr-nexthop:frr-nexthop;
    }
  }

  typedef srv6-behavior-codepoint {
    description
      "SRv6 Endpoint Behaviors Codepoints as per
      https://www.iana.org/assignments/segment-routing/segment-routing.xhtml.";
    type enumeration {
      enum End {
        value 1;
        description
          "This enum indicates End endpoint behavior.";
      }
      enum End.X {
        value 5;
        description
          "This enum indicates End.X endpoint behavior.";
      }
      enum End.DT6 {
        value 18;
        description
          "This enum indicates End.DT6 endpoint behavior.";
      }
      enum End.DT4 {
        value 19;
        description
          "This enum indicates End.DT4 endpoint behavior.";
      }
      enum End.DT46 {
        value 20;
        description
          "This enum indicates End.DT46 endpoint behavior.";
      }
      enum uN {
        value 43;
        description
          "This enum indicates End with NEXT-CSID endpoint behavior.";
      }
      enum uA {
        value 52;
        description
          "This enum indicates End.X with NEXT-CSID endpoint behavior.";
      }
      enum uDT6 {
        value 62;
        description
          "This enum indicates End.DT6 with NEXT-CSID endpoint behavior.";
      }
      enum uDT4 {
        value 63;
        description
          "This enum indicates End.DT4 with NEXT-CSID endpoint behavior.";
      }
      enum uDT46 {
        value 64;
        description
          "This enum indicates End.DT46 with NEXT-CSID endpoint behavior.";
      }
    }
  }

  augment "/frr-rt:routing/frr-rt:control-plane-protocols/frr-rt:control-plane-protocol" {
    container staticd {
      when "../frr-rt:type = 'frr-staticd:staticd'" {
        description
          "This container is only valid for the 'staticd' routing
           protocol.";
      }
      description
        "Support for a 'staticd' pseudo-protocol instance
         consists of a list of routes.";
      list route-list {
        key "prefix src-prefix afi-safi";
        description
          "List of staticd IP routes.";
        leaf prefix {
          type inet:ip-prefix;
          description
            "IP prefix.";
        }
        leaf src-prefix {
          type inet:ipv6-prefix;
          description
            "IPv6 source prefix for dst-src routes";
        }
        leaf afi-safi {
          type identityref {
            base frr-rt:afi-safi-type;
          }
          description
            "AFI-SAFI type.";
        }
        /* note dst-src routes are semantically invalid in MRIB */
        must "afi-safi = 'frr-rt:ipv6-unicast'
           or afi-safi = 'frr-rt:ipv6-labeled-unicast'
           or afi-safi = 'frr-rt:l3vpn-ipv6-unicast'
           or src-prefix = '::/0'
        ";

        uses staticd-prefix-attributes {
          augment "path-list/frr-nexthops/nexthop" {
            container bfd-monitoring {
              description "BFD monitoring options.";
              presence
                "Present if BFD configuration is available.";

              when "../nh-type = 'ip4' or ../nh-type = 'ip4-ifindex' or
                    ../nh-type = 'ip6' or ../nh-type = 'ip6-ifindex'";
              uses frr-bfdd:bfd-monitoring;
            }
          }
        }
      }

      container segment-routing {
        description
          "Segment Routing configuration.";
        container srv6 {
          description
            "Segment Routing over IPv6 (SRv6) configuration.";
          container static-sids {
            description
              "This container lists the SRv6 Static SIDs instantiated on the local node.";
            list sid {
              description
                "List of SRv6 Static SIDs.";
              key "sid";
              leaf sid {
                type inet:ipv6-prefix;
                description
                  "Value of the SRv6 SID.";
              }
              leaf behavior {
                type srv6-behavior-codepoint;
                description
                  "Behavior bound to the SRv6 SID.";
              }
              leaf locator-name {
                type string;
                description
                  "SRv6 locator name.";
              }
              leaf vrf-name {
                type frr-vrf:vrf-ref;
                description
                  "The VRF name.";
              }
            }
          }
        }
      }
    }
  }
}