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/*
 * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */

module l2-l3-forwarding {
    yang-version 1;

    namespace "urn:opendaylight:groupbasedpolicy:forwarding:l2_l3";
    prefix "l2-l3-forwarding";

    import forwarding { prefix forwarding; revision-date 2016-04-27; }
    import renderer { prefix renderer; revision-date 2015-11-03; }
    import ietf-inet-types { prefix inet; revision-date 2013-07-15; }
    import yang-ext {prefix ext; revision-date 2013-07-09;}

    revision "2017-05-11" {
        description
            "Updated revision, added support for default GW and DHCP server in subnet.";
    }

    revision "2016-04-27" {
        description
                "Initial revision.";
    }

    identity l3-context {
        base forwarding:context-type;
    }

    identity l2-bridge-domain {
        base forwarding:context-type;
    }

    identity l2-flood-domain {
        base forwarding:context-type;
    }

    identity subnet {
        base forwarding:network-domain;
    }

    identity mac-address-type {
        description "Values by MAC address type MUST be compatible with type ietf-yang-types:mac-address.
            This address type can be used only if forwarding:context-type is l2-bridge-domain.";
        base forwarding:address-type;
    }

    identity ip-prefix-type {
        description "Values by IP prefix type MUST be compatible with type ietf-inet-types:ip-prefix.
            This address type can be used only if forwarding:context-type is l3-context.";
        base forwarding:address-type;
    }

    grouping has-subnet {
        container subnet {
            when "../forwarding:network-domain-type = 'l2-l3-forwarding:subnet'";
            leaf ip-prefix {
                description "The IP prefix that defines the subnet";
                type inet:ip-prefix;
            }
            leaf virtual-router-ip {
                description
                    "IP address to use for a virtual gateway router
                     for the subnet, if desired.";
                type inet:ip-address;
            }

            leaf default-subnet-gateway-ip {
                description
                    "IP address to use for a default gateway
                     for the subnet, if desired.";
                type inet:ip-address;
            }

            list gateways {
                description
                    "External gateways for subnets we serve,
                    includes prefixes for static routing";
                key "gateway";
                leaf gateway {
                    type inet:ip-address;
                }
                list prefixes {
                    key "prefix";
                    leaf prefix {
                        type inet:ip-prefix;
                    }
                }
            }
            list allocation-pool {
                description "Allocation pool of assignable addresses.";
                key "first last";
                leaf first {
                    type string;
                }
                leaf last {
                    type string;
                }
            }
            leaf is-tenant {
                description "Subnet is used as tenant network.";
                type boolean;
                default "true";
            }
        }
    }

    augment "/forwarding:forwarding/forwarding:forwarding-by-tenant/forwarding:network-domain" {
        ext:augment-identifier "subnet-augment-forwarding";
        uses has-subnet;
    }

    augment "/renderer:renderers/renderer:renderer/renderer:renderer-policy/renderer:configuration/renderer:renderer-forwarding/renderer:renderer-forwarding-by-tenant/renderer:renderer-network-domain" {
        ext:augment-identifier "subnet-augment-renderer";
        uses has-subnet;
    }

}