module vpp-oc-srte-policy {

    namespace "urn:hc2vpp:params:xml:ns:yang:vpp-oc-srte-policy";
    prefix vpp-oc-srte-policy;

    import hc2vpp-oc-srte-policy {
        prefix "oc-srte";
        revision-date 2017-09-18;
    }

    import vpp-fib-table-management {
        prefix fib-management;
        revision-date 2018-05-21;
    }

    import ietf-interfaces { prefix if; }

    import yang-ext { prefix "ext"; }

    organization
        "FD.io - The Fast Data Project";

    contact
        "Hc2vpp Wiki <https://wiki.fd.io/view/Hc2vpp>
         Mailing List <hc2vpp@lists.fd.io>";

    description
        "This module provides VPP specific configuration of L2 steering policy configuration
         and vpp policy configuration for SRv6 policies.

         Copyright (c) 2018 Bell Canada, Pantheon Technologies and/or its affiliates.

         Licensed under the Apache License, Version 2.0 (the 'License');
         you may not use this file except in compliance with the License.
         You may obtain a copy of the License at:

         http://www.apache.org/licenses/LICENSE-2.0

         Unless required by applicable law or agreed to in writing, software
         distributed under the License is distributed on an 'AS IS' BASIS,
         WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
         See the License for the specific language governing permissions and
         limitations under the License.";

    revision 2018-05-14 {
        description "initial revision";
    }

    typedef segment-routing-policy-behavior {
        type enumeration {
            enum SegmentRoutingHeaderInsert {
                value 0;
            }
            enum Encapsulation {
                value 1;
            }
        }
    }

    typedef segment-routing-policy-type {
        type enumeration {
            enum Default {
                value 0;
            }
            enum Spray {
                value 1;
            }
        }
    }

    grouping sr-interfaces-config {
        leaf input-interface {
           type if:interface-ref;
           description "Incoming interface for L2 traffic";
        }
    }

    grouping sr-interfaces {
        list interface {
            key "input-interface";

            leaf input-interface {
                type leafref {
                    path "../config/input-interface";
                }
                description "Incoming interface for L2 traffic";
            }

            container config {
                uses sr-interfaces-config;
            }

            container state {
                config false;
                uses sr-interfaces-config;
            }
        }
    }

    grouping sr-policy-config {
        leaf policy-type {
           type segment-routing-policy-type;
           description "SR policy type definition. Either Spray (1) or Default (0)";
        }

        leaf policy-behavior {
           type segment-routing-policy-behavior;
           description "SR policy behavior definition. Either Encapsulation (1) or SegmentRoutingHeaderInsert (0)";
        }

        leaf table-id {
            type fib-management:fib-table-list-ref;
            description "VRF index reference.";
        }
        leaf address-family {
            type fib-management:address-family-type;
            description "Address family reference. For SRv6 has to be always Ipv6.";
        }
    }

    grouping sr-policy {
        container config {
            uses sr-policy-config;
        }

        container state {
            config false;
            uses sr-policy-config;
        }
    }

    augment "/oc-srte:segment-routing/oc-srte:traffic-engineering/oc-srte:policies/oc-srte:policy/oc-srte:autoroute-include/" {
        description "This augments autoroute-include in policy configuration with L2 steering interfaces.";
        ext:augment-identifier "vpp-l2-autoroute-include-augmentation";

        container interfaces {
        description "L2 steering policy configuration dataplane.";
          uses sr-interfaces;
        }
    }

    augment "/oc-srte:segment-routing/oc-srte:traffic-engineering/oc-srte:policies/oc-srte:policy/" {
        description "This augments vpp specific configuration for srte policy.";
        ext:augment-identifier "vpp-sr-policy-augmentation";

        container vpp-sr-policy {
        description "VPP SR policy configuration dataplane.";
          uses sr-policy;
        }
    }
}