// Copyright (C) 2018 Nippon Telegraph and Telephone Corporation.
//
// Permission is hereby granted, free of charge, to any person
// obtaining a copy of this software and associated documentation files
// (the "Software"), to deal in the Software without restriction,
// including without limitation the rights to use, copy, modify, merge,
// publish, distribute, sublicense, and/or sell copies of the Software,
// and to permit persons to whom the Software is furnished to do so,
// subject to the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.

// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

syntax = "proto3";

import "google/protobuf/any.proto";
import "gobgp.proto";

package gobgpapi;

message OriginAttribute { uint32 origin = 1; }

message AsSegment {
  uint32 type = 1;
  repeated uint32 numbers = 2;
}

message AsPathAttribute { repeated AsSegment segments = 1; }

message NextHopAttribute { string next_hop = 1; }

message MultiExitDiscAttribute { uint32 med = 1; }

message LocalPrefAttribute { uint32 local_pref = 1; }

message AtomicAggregateAttribute {}

message AggregatorAttribute {
  uint32 as = 2;
  string address = 3;
}

message CommunitiesAttribute { repeated uint32 communities = 1; }

message OriginatorIdAttribute { string id = 1; }

message ClusterListAttribute { repeated string ids = 1; }

// IPAddressPrefix represents the NLRI for:
// - AFI=1, SAFI=1
// - AFI=2, SAFI=1
message IPAddressPrefix {
  uint32 prefix_len = 1;
  string prefix = 2;
}

// LabeledIPAddressPrefix represents the NLRI for:
// - AFI=1, SAFI=4
// - AFI=2, SAFI=4
message LabeledIPAddressPrefix {
  repeated uint32 labels = 1;
  uint32 prefix_len = 2;
  string prefix = 3;
}

// EncapsulationNLRI represents the NLRI for:
// - AFI=1, SAFI=7
// - AFI=2, SAFI=7
message EncapsulationNLRI { string address = 1; }

message RouteDistinguisherTwoOctetAS {
  uint32 admin = 1;
  uint32 assigned = 2;
}

message RouteDistinguisherIPAddress {
  string admin = 1;
  uint32 assigned = 2;
}

message RouteDistinguisherFourOctetAS {
  uint32 admin = 1;
  uint32 assigned = 2;
}

message EthernetSegmentIdentifier {
  uint32 type = 1;
  bytes value = 2;
}

// EVPNEthernetAutoDiscoveryRoute represents the NLRI for:
// - AFI=25, SAFI=70, RouteType=1
message EVPNEthernetAutoDiscoveryRoute {
  // One of:
  // - RouteDistinguisherTwoOctetAS
  // - RouteDistinguisherIPAddressAS
  // - RouteDistinguisherFourOctetAS
  google.protobuf.Any rd = 1;
  EthernetSegmentIdentifier esi = 2;
  uint32 ethernet_tag = 3;
  uint32 label = 4;
}

// EVPNMACIPAdvertisementRoute represents the NLRI for:
// - AFI=25, SAFI=70, RouteType=2
message EVPNMACIPAdvertisementRoute {
  // One of:
  // - RouteDistinguisherTwoOctetAS
  // - RouteDistinguisherIPAddressAS
  // - RouteDistinguisherFourOctetAS
  google.protobuf.Any rd = 1;
  EthernetSegmentIdentifier esi = 2;
  uint32 ethernet_tag = 3;
  string mac_address = 4;
  string ip_address = 5;
  repeated uint32 labels = 6;
}

// EVPNInclusiveMulticastEthernetTagRoute represents the NLRI for:
// - AFI=25, SAFI=70, RouteType=3
message EVPNInclusiveMulticastEthernetTagRoute {
  // One of:
  // - RouteDistinguisherTwoOctetAS
  // - RouteDistinguisherIPAddressAS
  // - RouteDistinguisherFourOctetAS
  google.protobuf.Any rd = 1;
  uint32 ethernet_tag = 2;
  string ip_address = 3;
}

// EVPNEthernetSegmentRoute represents the NLRI for:
// - AFI=25, SAFI=70, RouteType=4
message EVPNEthernetSegmentRoute {
  // One of:
  // - RouteDistinguisherTwoOctetAS
  // - RouteDistinguisherIPAddressAS
  // - RouteDistinguisherFourOctetAS
  google.protobuf.Any rd = 1;
  EthernetSegmentIdentifier esi = 2;
  string ip_address = 3;
}

// EVPNIPPrefixRoute represents the NLRI for:
// - AFI=25, SAFI=70, RouteType=5
message EVPNIPPrefixRoute {
  // One of:
  // - RouteDistinguisherTwoOctetAS
  // - RouteDistinguisherIPAddressAS
  // - RouteDistinguisherFourOctetAS
  google.protobuf.Any rd = 1;
  EthernetSegmentIdentifier esi = 2;
  uint32 ethernet_tag = 3;
  string ip_prefix = 4;
  uint32 ip_prefix_len = 5;
  string gw_address = 6;
  uint32 label = 7;
}

// EVPNIPMSIRoute represents the NLRI for:
// - AFI=25, SAFI=70, RouteType=9
message EVPNIPMSIRoute {
  // One of:
  // - RouteDistinguisherTwoOctetAS
  // - RouteDistinguisherIPAddressAS
  // - RouteDistinguisherFourOctetAS
  google.protobuf.Any rd = 1;
  uint32 ethernet_tag = 2;
  google.protobuf.Any rt = 3;
}

// SRPolicyNLRI represents the NLRI for:
// - AFI=1, SAFI=73
// - AFI=2, SAFI=73
message SRPolicyNLRI {
  // length field carries the length of NLRI portion expressed in bits
  uint32 length = 1;
  // distinguisher field carries 4-octet value uniquely identifying the policy
  // in the context of <color, endpoint> tuple.
  uint32 distinguisher = 2;
  // color field carries 4-octet value identifying (with the endpoint) the
  // policy.  The color is used to match the color of the destination
  // prefixes to steer traffic into the SR Policy
  uint32 color = 3;
  // endpoint field identifies the endpoint of a policy.  The Endpoint may
  // represent a single node or a set of nodes (e.g., an anycast
  // address).  The Endpoint is an IPv4 (4-octet) address or an IPv6
  // (16-octet) address according to the AFI of the NLRI.
  bytes endpoint = 4;
}

// LabeledVPNIPAddressPrefix represents the NLRI for:
// - AFI=1, SAFI=128
// - AFI=2, SAFI=128
message LabeledVPNIPAddressPrefix {
  repeated uint32 labels = 1;
  // One of:
  // - TwoOctetAsSpecificExtended
  // - IPv4AddressSpecificExtended
  // - FourOctetAsSpecificExtended
  google.protobuf.Any rd = 2;
  uint32 prefix_len = 3;
  string prefix = 4;
}

// RouteTargetMembershipNLRI represents the NLRI for:
// - AFI=1, SAFI=132
message RouteTargetMembershipNLRI {
  uint32 as = 1;
  // One of:
  // - TwoOctetAsSpecificExtended
  // - IPv4AddressSpecificExtended
  // - FourOctetAsSpecificExtended
  google.protobuf.Any rt = 2;
}

message FlowSpecIPPrefix {
  uint32 type = 1;
  uint32 prefix_len = 2;
  string prefix = 3;
  // IPv6 only
  uint32 offset = 4;
}

message FlowSpecMAC {
  uint32 type = 1;
  string address = 2;
}

message FlowSpecComponentItem {
  // Operator for Numeric type, Operand for Bitmask type
  uint32 op = 1;
  uint64 value = 2;
}

message FlowSpecComponent {
  uint32 type = 1;
  repeated FlowSpecComponentItem items = 2;
}

// FlowSpecNLRI represents the NLRI for:
// - AFI=1, SAFI=133
// - AFI=2, SAFI=133
message FlowSpecNLRI {
  // One of:
  // - FlowSpecIPPrefix
  // - FlowSpecMAC
  // - FlowSpecComponent
  repeated google.protobuf.Any rules = 1;
}

// VPNFlowSpecNLRI represents the NLRI for:
// - AFI=1, SAFI=134
// - AFI=2, SAFI=134
// - AFI=25, SAFI=134
message VPNFlowSpecNLRI {
  // One of:
  // - RouteDistinguisherTwoOctetAS
  // - RouteDistinguisherIPAddressAS
  // - RouteDistinguisherFourOctetAS
  google.protobuf.Any rd = 1;
  // One of:
  // - FlowSpecIPPrefix
  // - FlowSpecMAC
  // - FlowSpecComponent
  repeated google.protobuf.Any rules = 2;
}

// OpaqueNLRI represents the NLRI for:
// - AFI=16397, SAFI=241
message OpaqueNLRI {
  bytes key = 1;
  bytes value = 2;
}

message LsNodeDescriptor {
  uint32 asn = 1;
  uint32 bgp_ls_id = 2;
  uint32 ospf_area_id = 3;
  bool pseudonode = 4;
  string igp_router_id = 5;
}

message LsLinkDescriptor {
  uint32 link_local_id = 1;
  uint32 link_remote_id = 2;
  string interface_addr_ipv4 = 3;
  string neighbor_addr_ipv4 = 4;
  string interface_addr_ipv6 = 5;
  string neighbor_addr_ipv6 = 6;
}

message LsPrefixDescriptor {
  repeated string ip_reachability = 1;
  string ospf_route_type = 2;
}

message LsNodeNLRI { LsNodeDescriptor local_node = 1; }

message LsLinkNLRI {
  LsNodeDescriptor local_node = 1;
  LsNodeDescriptor remote_node = 2;
  LsLinkDescriptor link_descriptor = 3;
}

message LsPrefixV4NLRI {
  LsNodeDescriptor local_node = 1;
  LsPrefixDescriptor prefix_descriptor = 2;
}

message LsPrefixV6NLRI {
  LsNodeDescriptor local_node = 1;
  LsPrefixDescriptor prefix_descriptor = 2;
}

// Based om RFC 7752, Table 1.
enum LsNLRIType {
  LS_NLRI_UNKNOWN = 0; LS_NLRI_NODE = 1; LS_NLRI_LINK = 2;
  LS_NLRI_PREFIX_V4 = 3;
  LS_NLRI_PREFIX_V6 = 4;
}

enum LsProtocolID {
  LS_PROTOCOL_UNKNOWN = 0; LS_PROTOCOL_ISIS_L1 = 1; LS_PROTOCOL_ISIS_L2 = 2;
  LS_PROTOCOL_OSPF_V2 = 3;
  LS_PROTOCOL_DIRECT = 4;
  LS_PROTOCOL_STATIC = 5;
  LS_PROTOCOL_OSPF_V3 = 6;
}

// LsAddrPrefix represents the NLRI for:
// - AFI=16388, SAFI=71
message LsAddrPrefix {
  LsNLRIType type = 1;
  // One of:
  // - LsNodeNLRI
  // - LsLinkNLRI
  // - LsPrefixV4NLRI
  // - LsPrefixV6NLRI
  google.protobuf.Any nlri = 2;
  uint32 length = 3;
  LsProtocolID protocol_id = 4;
  uint64 identifier = 5;
}

message MpReachNLRIAttribute {
  gobgpapi.Family family = 1;
  repeated string next_hops = 2;
  // Each NLRI must be one of:
  // - IPAddressPrefix
  // - LabeledIPAddressPrefix
  // - EncapsulationNLRI
  // - EVPNEthernetAutoDiscoveryRoute
  // - EVPNMACIPAdvertisementRoute
  // - EVPNInclusiveMulticastEthernetTagRoute
  // - EVPNEthernetSegmentRoute
  // - EVPNIPPrefixRoute
  // - EVPNIPMSIRoute
  // - LabeledVPNIPAddressPrefix
  // - RouteTargetMembershipNLRI
  // - FlowSpecNLRI
  // - VPNFlowSpecNLRI
  // - OpaqueNLRI
  // - LsAddrPrefix
  // - SR Policy NLRI
  repeated google.protobuf.Any nlris = 3;
}

message MpUnreachNLRIAttribute {
  gobgpapi.Family family = 1;
  // The same as NLRI field of MpReachNLRIAttribute
  repeated google.protobuf.Any nlris = 3;
}

message TwoOctetAsSpecificExtended {
  bool is_transitive = 1;
  uint32 sub_type = 2;
  uint32 as = 3;
  uint32 local_admin = 4;
}

message IPv4AddressSpecificExtended {
  bool is_transitive = 1;
  uint32 sub_type = 2;
  string address = 3;
  uint32 local_admin = 4;
}

message FourOctetAsSpecificExtended {
  bool is_transitive = 1;
  uint32 sub_type = 2;
  uint32 as = 3;
  uint32 local_admin = 4;
}

message ValidationExtended { uint32 state = 1; }

message ColorExtended { uint32 color = 1; }

message EncapExtended { uint32 tunnel_type = 1; }

message DefaultGatewayExtended {}

message OpaqueExtended {
  bool is_transitive = 1;
  bytes value = 3;
}

message ESILabelExtended {
  bool is_single_active = 1;
  uint32 label = 2;
}

message ESImportRouteTarget { string es_import = 1; }

message MacMobilityExtended {
  bool is_sticky = 1;
  uint32 sequence_num = 2;
}

message RouterMacExtended { string mac = 1; }

message TrafficRateExtended {
  uint32 as = 1;
  float rate = 2;
}

message TrafficActionExtended {
  bool terminal = 1;
  bool sample = 2;
}

message RedirectTwoOctetAsSpecificExtended {
  uint32 as = 1;
  uint32 local_admin = 2;
}

message RedirectIPv4AddressSpecificExtended {
  string address = 1;
  uint32 local_admin = 2;
}

message RedirectFourOctetAsSpecificExtended {
  uint32 as = 1;
  uint32 local_admin = 2;
}

message TrafficRemarkExtended { uint32 dscp = 1; }

message UnknownExtended {
  uint32 type = 1;
  bytes value = 2;
}

message ExtendedCommunitiesAttribute {
  // Each Community must be one of:
  // - TwoOctetAsSpecificExtended
  // - IPv4AddressSpecificExtended
  // - FourOctetAsSpecificExtended
  // - OpaqueExtended
  // - ESILabelExtended
  // - MacMobilityExtended
  // - RouterMacExtended
  // - TrafficRateExtended
  // - TrafficActionExtended
  // - RedirectTwoOctetAsSpecificExtended
  // - RedirectIPv4AddressSpecificExtended
  // - RedirectFourOctetAsSpecificExtended
  // - TrafficRemarkExtended
  // - UnknownExtended
  repeated google.protobuf.Any communities = 1;
}

message As4PathAttribute { repeated AsSegment segments = 1; }

message As4AggregatorAttribute {
  uint32 as = 2;
  string address = 3;
}

message PmsiTunnelAttribute {
  uint32 flags = 1;
  uint32 type = 2;
  uint32 label = 3;
  bytes id = 4;
}

message TunnelEncapSubTLVEncapsulation {
  uint32 key = 1;
  bytes cookie = 2;
}

message TunnelEncapSubTLVProtocol { uint32 protocol = 1; }

message TunnelEncapSubTLVColor { uint32 color = 1; }

message TunnelEncapSubTLVSRPreference {
  uint32 flags = 1;
  uint32 preference = 2;
}

message TunnelEncapSubTLVSRCandidatePathName { string candidate_path_name = 1; }

message TunnelEncapSubTLVSRPriority { uint32 priority = 1; }

message TunnelEncapSubTLVSRBindingSID {
  // bsid must be one of:
  // - SRBindingSID
  // - SRv6BindingSID
  google.protobuf.Any bsid = 1;
}

message SRBindingSID {
  bool s_flag = 1;
  bool i_flag = 2;
  bytes sid = 3;
}

enum SRv6Behavior {
  RESERVED = 0; END = 1; END_WITH_PSP = 2; END_WITH_USP = 3;
  END_WITH_PSP_USP = 4;
  ENDX = 5;
  ENDX_WITH_PSP = 6;
  ENDX_WITH_USP = 7;
  ENDX_WITH_PSP_USP = 8;
  ENDT = 9;
  ENDT_WITH_PSP = 10;
  ENDT_WITH_USP = 11;
  ENDT_WITH_PSP_USP = 12;
  END_B6_ENCAPS = 14;
  END_BM = 15;
  END_DX6 = 16;
  END_DX4 = 17;
  END_DT6 = 18;
  END_DT4 = 19;
  END_DT46 = 20;
  END_DX2 = 21;
  END_DX2V = 22;
  END_DT2U = 23;
  END_DT2M = 24;
  END_B6_ENCAPS_Red = 27;
  END_WITH_USD = 28;
  END_WITH_PSP_USD = 29;
  END_WITH_USP_USD = 30;
  END_WITH_PSP_USP_USD = 31;
  ENDX_WITH_USD = 32;
  ENDX_WITH_PSP_USD = 33;
  ENDX_WITH_USP_USD = 34;
  ENDX_WITH_PSP_USP_USD = 35;
  ENDT_WITH_USD = 36;
  ENDT_WITH_PSP_USD = 37;
  ENDT_WITH_USP_USD = 38;
  ENDT_WITH_PSP_USP_USD = 39;
}

message SRv6EndPpointBehavior {
  SRv6Behavior behavior = 1;
  uint32 block_len = 2;
  uint32 node_len = 3;
  uint32 func_len = 4;
  uint32 arg_len = 5;
}

message SRv6BindingSID {
  bool s_flag = 1;
  bool i_flag = 2;
  bool b_flag = 3;
  bytes sid = 4;
  SRv6EndPpointBehavior endpoint_behavior_structure = 5;
}

enum ENLPType { Reserved = 0; Type1 = 1; Type2 = 2; Type3 = 3; Type4 = 4; }

message TunnelEncapSubTLVSRENLP {
  uint32 flags = 1;
  ENLPType enlp = 2;
}

message SRWeight {
  uint32 flags = 1;
  uint32 weight = 2;
}

message SegmentFlags {
  bool v_flag = 1;
  bool a_flag = 2;
  bool s_flag = 3;
  bool b_flag = 4;
}

message SegmentTypeA {
  SegmentFlags flags = 1;
  uint32 label = 2;
}

message SegmentTypeB {
  SegmentFlags flags = 1;
  uint32 label = 2;
}

message TunnelEncapSubTLVSRSegmentList {
  SRWeight weight = 1;
  // segments must be one of:
  // - SegmentTypeA
  // - SegmentTypeB
  repeated google.protobuf.Any segments = 2;
}

message TunnelEncapSubTLVUnknown {
  uint32 type = 1;
  bytes value = 2;
}

message TunnelEncapTLV {
  uint32 type = 1;
  // Each TLV must be one of:
  // - TunnelEncapSubTLVEncapsulation
  // - TunnelEncapSubTLVProtocol
  // - TunnelEncapSubTLVColor
  // - TunnelEncapSubTLVSRPolicy
  // - TunnelEncapSubTLVUnknown
  repeated google.protobuf.Any tlvs = 2;
}

message TunnelEncapAttribute { repeated TunnelEncapTLV tlvs = 1; }

message IPv6AddressSpecificExtended {
  bool is_transitive = 1;
  uint32 sub_type = 2;
  string address = 3;
  uint32 local_admin = 4;
}

message RedirectIPv6AddressSpecificExtended {
  string address = 1;
  uint32 local_admin = 2;
}

message IP6ExtendedCommunitiesAttribute {
  // Each Community must be one of:
  // - IPv6AddressSpecificExtended
  // - RedirectIPv6AddressSpecificExtended
  repeated google.protobuf.Any communities = 1;
}

message AigpTLVIGPMetric { uint64 metric = 1; }

message AigpTLVUnknown {
  uint32 type = 1;
  bytes value = 2;
}

message AigpAttribute {
  // Each TLV must be one of:
  // - AigpTLVIGPMetric
  // - AigpTLVUnknown
  repeated google.protobuf.Any tlvs = 1;
}

message LargeCommunity {
  uint32 global_admin = 1;
  uint32 local_data1 = 2;
  uint32 local_data2 = 3;
}

message LargeCommunitiesAttribute { repeated LargeCommunity communities = 1; }

message LsNodeFlags {
  bool overload = 1;
  bool attached = 2;
  bool external = 3;
  bool abr = 4;
  bool router = 5;
  bool v6 = 6;
}

message LsIGPFlags {
  bool down = 1;
  bool no_unicast = 2;
  bool local_address = 3;
  bool propagate_nssa = 4;
}

message LsSrRange {
  uint32 begin = 1;
  uint32 end = 2;
}

message LsSrCapabilities {
  bool ipv4_supported = 1;
  bool ipv6_supported = 2;
  repeated LsSrRange ranges = 3;
}

message LsSrLocalBlock { repeated LsSrRange ranges = 1; }

message LsAttributeNode {
  string name = 1;
  LsNodeFlags flags = 2;
  string local_router_id = 3;
  string local_router_id_v6 = 4;
  bytes isis_area = 5;
  bytes opaque = 6;

  LsSrCapabilities sr_capabilities = 7;
  bytes sr_algorithms = 8;
  LsSrLocalBlock sr_local_block = 9;
}

message LsAttributeLink {
  string name = 1;
  string local_router_id = 2;
  string local_router_id_v6 = 3;
  string remote_router_id = 4;
  string remote_router_id_v6 = 5;
  uint32 admin_group = 6;
  uint32 default_te_metric = 7;
  uint32 igp_metric = 8;
  bytes opaque = 9;

  float bandwidth = 10;
  float reservable_bandwidth = 11;
  repeated float unreserved_bandwidth = 12;

  uint32 sr_adjacency_sid = 13;
  repeated uint32 srlgs = 14;
}

message LsAttributePrefix {
  LsIGPFlags igp_flags = 1;
  bytes opaque = 2;

  uint32 sr_prefix_sid = 3;
}

message LsAttribute {
  LsAttributeNode node = 1;
  LsAttributeLink link = 2;
  LsAttributePrefix prefix = 3;
}

message UnknownAttribute {
  uint32 flags = 1;
  uint32 type = 2;
  bytes value = 3;
}

// https://tools.ietf.org/html/draft-dawra-bess-srv6-services-02#section-2.1.1
message SRv6StructureSubSubTLV {
  uint32 local_block_length = 1;
  uint32 local_node_length = 2;
  uint32 function_length = 3;
  uint32 argument_length = 4;
  uint32 transposition_length = 5;
  uint32 transposition_offset = 6;
}

message SRv6SIDFlags {
  // Placeholder for future sid flags
  bool flag_1 = 1;
}

message SRv6TLV { repeated google.protobuf.Any tlv = 1; }

// https://tools.ietf.org/html/draft-dawra-bess-srv6-services-02#section-2.1.1
message SRv6InformationSubTLV {
  bytes sid = 1;
  SRv6SIDFlags flags = 2;
  uint32 endpoint_behavior = 3;
  // SRv6TLV is one of:
  // - SRv6StructureSubSubTLV
  map<uint32, SRv6TLV> sub_sub_tlvs = 4;
}

// https://tools.ietf.org/html/draft-dawra-bess-srv6-services-02#section-2
message SRv6L3ServiceTLV {
  // SRv6TLV is one of:
  // - SRv6InformationSubTLV
  map<uint32, SRv6TLV> sub_tlvs = 1;
}

// https://tools.ietf.org/html/rfc8669
message PrefixSID {
  // tlv is one of:
  // - IndexLabelTLV Type 1 (not yet implemented)
  // - OriginatorSRGBTLV Type 3 (not yet implemented)
  // - SRv6L3ServiceTLV Type 5
  // - SRv6L2ServiceTLV Type 6 (not yet implemented)
  repeated google.protobuf.Any tlvs = 1;
}