extend attributes proto for Prefix SID support

Signed-off-by: Serguei Bezverkhi <sbezverk@cisco.com>

1 files changed, 365 insertions, 369 deletions

diff --git a/api/attribute.proto b/api/attribute.proto
index 11f075f1..acbffdf0 100644
--- a/api/attribute.proto
+++ b/api/attribute.proto
@@ -26,233 +26,214 @@ import "gobgp.proto";
 
 package gobgpapi;
 
-message OriginAttribute {
-    uint32 origin = 1;
-}
+message OriginAttribute { uint32 origin = 1; }
 
 message AsSegment {
-    uint32 type = 1;
-    repeated uint32 numbers = 2;
+  uint32 type = 1;
+  repeated uint32 numbers = 2;
 }
 
-message AsPathAttribute {
-    repeated AsSegment segments = 1;
-}
+message AsPathAttribute { repeated AsSegment segments = 1; }
 
-message NextHopAttribute {
-    string next_hop = 1;
-}
+message NextHopAttribute { string next_hop = 1; }
 
-message MultiExitDiscAttribute {
-    uint32 med = 1;
-}
+message MultiExitDiscAttribute { uint32 med = 1; }
 
-message LocalPrefAttribute {
-    uint32 local_pref = 1;
-}
+message LocalPrefAttribute { uint32 local_pref = 1; }
 
-message AtomicAggregateAttribute {
-}
+message AtomicAggregateAttribute {}
 
 message AggregatorAttribute {
-    uint32 as = 2;
-    string address = 3;
+  uint32 as = 2;
+  string address = 3;
 }
 
-message CommunitiesAttribute {
-    repeated uint32 communities = 1;
-}
+message CommunitiesAttribute { repeated uint32 communities = 1; }
 
-message OriginatorIdAttribute {
-    string id = 1;
-}
+message OriginatorIdAttribute { string id = 1; }
 
-message ClusterListAttribute {
-    repeated string ids = 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;
+  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;
+  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 EncapsulationNLRI { string address = 1; }
 
 message RouteDistinguisherTwoOctetAS {
-    uint32 admin = 1;
-    uint32 assigned = 2;
+  uint32 admin = 1;
+  uint32 assigned = 2;
 }
 
 message RouteDistinguisherIPAddress {
-    string admin = 1;
-    uint32 assigned = 2;
+  string admin = 1;
+  uint32 assigned = 2;
 }
 
 message RouteDistinguisherFourOctetAS {
-    uint32 admin = 1;
-    uint32 assigned = 2;
+  uint32 admin = 1;
+  uint32 assigned = 2;
 }
 
 message EthernetSegmentIdentifier {
-    uint32 type = 1;
-    bytes value = 2;
+  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;
+  // 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;
+  // 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;
+  // 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;
+  // 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;
+  // 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;
+  // One of:
+  // - RouteDistinguisherTwoOctetAS
+  // - RouteDistinguisherIPAddressAS
+  // - RouteDistinguisherFourOctetAS
+  google.protobuf.Any rd = 1;
+  uint32 ethernet_tag = 2;
+  google.protobuf.Any rt = 3;
 }
 
 // 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;
+  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;
+  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;
+  uint32 type = 1;
+  uint32 prefix_len = 2;
+  string prefix = 3;
+  // IPv6 only
+  uint32 offset = 4;
 }
 
 message FlowSpecMAC {
-    uint32 type = 1;
-    string address = 2;
+  uint32 type = 1;
+  string address = 2;
 }
 
 message FlowSpecComponentItem {
-    // Operator for Numeric type, Operand for Bitmask type
-    uint32 op = 1;
-    uint64 value = 2;
+  // Operator for Numeric type, Operand for Bitmask type
+  uint32 op = 1;
+  uint64 value = 2;
 }
 
 message FlowSpecComponent {
-    uint32 type = 1;
-    repeated FlowSpecComponentItem items = 2;
+  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;
+  // One of:
+  // - FlowSpecIPPrefix
+  // - FlowSpecMAC
+  // - FlowSpecComponent
+  repeated google.protobuf.Any rules = 1;
 }
 
 // VPNFlowSpecNLRI represents the NLRI for:
@@ -260,399 +241,414 @@ message FlowSpecNLRI {
 // - 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;
+  // 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;
+  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;
+  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;
+  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;
+  repeated string ip_reachability = 1;
+  string ospf_route_type = 2;
 }
 
-message LsNodeNLRI {
-    LsNodeDescriptor local_node = 1;
-}
+message LsNodeNLRI { LsNodeDescriptor local_node = 1; }
 
 message LsLinkNLRI {
-    LsNodeDescriptor local_node = 1;
-    LsNodeDescriptor remote_node = 2;
-    LsLinkDescriptor link_descriptor = 3;
+  LsNodeDescriptor local_node = 1;
+  LsNodeDescriptor remote_node = 2;
+  LsLinkDescriptor link_descriptor = 3;
 }
 
 message LsPrefixV4NLRI {
-    LsNodeDescriptor local_node = 1;
-    LsPrefixDescriptor prefix_descriptor = 2;
+  LsNodeDescriptor local_node = 1;
+  LsPrefixDescriptor prefix_descriptor = 2;
 }
 
 message LsPrefixV6NLRI {
-    LsNodeDescriptor local_node = 1;
-    LsPrefixDescriptor prefix_descriptor = 2;
+  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;
+  LS_NLRI_UNKNOWN = 0;
+  LS_NLRI_NODE = 1;
+  LS_NLRI_LINK = 2;
+  LS_NLRI_PREFIX_V4 = 3;
+  LS_NLRI_PREFIX_V6 = 4;
 }
 
 // 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;
+  LsNLRIType type = 1;
+  // One of:
+  // - LsNodeNLRI
+  // - LsLinkNLRI
+  // - LsPrefixV4NLRI
+  // - LsPrefixV6NLRI
+  google.protobuf.Any nlri = 2;
 }
 
 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
-    repeated google.protobuf.Any nlris = 3;
+  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
+  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;
+  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;
+  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;
+  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;
+  bool is_transitive = 1;
+  uint32 sub_type = 2;
+  uint32 as = 3;
+  uint32 local_admin = 4;
 }
 
-message ValidationExtended {
-    uint32 state = 1;
-}
+message ValidationExtended { uint32 state = 1; }
 
-message ColorExtended {
-    uint32 color = 1;
-}
+message ColorExtended { uint32 color = 1; }
 
-message EncapExtended {
-    uint32 tunnel_type = 1;
-}
+message EncapExtended { uint32 tunnel_type = 1; }
 
-message DefaultGatewayExtended {
-}
+message DefaultGatewayExtended {}
 
 message OpaqueExtended {
-    bool is_transitive = 1;
-    bytes value = 3;
+  bool is_transitive = 1;
+  bytes value = 3;
 }
 
 message ESILabelExtended {
-    bool is_single_active = 1;
-    uint32 label = 2;
+  bool is_single_active = 1;
+  uint32 label = 2;
 }
 
-message ESImportRouteTarget {
-    string es_import = 1;
-}
+message ESImportRouteTarget { string es_import = 1; }
 
 message MacMobilityExtended {
-    bool is_sticky = 1;
-    uint32 sequence_num = 2;
+  bool is_sticky = 1;
+  uint32 sequence_num = 2;
 }
 
-message RouterMacExtended {
-    string mac = 1;
-}
+message RouterMacExtended { string mac = 1; }
 
 message TrafficRateExtended {
-    uint32 as = 1;
-    float rate = 2;
+  uint32 as = 1;
+  float rate = 2;
 }
 
 message TrafficActionExtended {
-    bool terminal = 1;
-    bool sample = 2;
+  bool terminal = 1;
+  bool sample = 2;
 }
 
 message RedirectTwoOctetAsSpecificExtended {
-    uint32 as = 1;
-    uint32 local_admin = 2;
+  uint32 as = 1;
+  uint32 local_admin = 2;
 }
 
 message RedirectIPv4AddressSpecificExtended {
-    string address = 1;
-    uint32 local_admin = 2;
+  string address = 1;
+  uint32 local_admin = 2;
 }
 
 message RedirectFourOctetAsSpecificExtended {
-    uint32 as = 1;
-    uint32 local_admin = 2;
+  uint32 as = 1;
+  uint32 local_admin = 2;
 }
 
-message TrafficRemarkExtended {
-    uint32 dscp = 1;
-}
+message TrafficRemarkExtended { uint32 dscp = 1; }
 
 message UnknownExtended {
-    uint32 type = 1;
-    bytes value = 2;
+  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;
-}
+  // 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;
+  uint32 as = 2;
+  string address = 3;
 }
 
 message PmsiTunnelAttribute {
-    uint32 flags = 1;
-    uint32 type = 2;
-    uint32 label = 3;
-    bytes id = 4;
+  uint32 flags = 1;
+  uint32 type = 2;
+  uint32 label = 3;
+  bytes id = 4;
 }
 
 message TunnelEncapSubTLVEncapsulation {
-    uint32 key = 1;
-    bytes cookie = 2;
+  uint32 key = 1;
+  bytes cookie = 2;
 }
 
-message TunnelEncapSubTLVProtocol {
-    uint32 protocol = 1;
-}
+message TunnelEncapSubTLVProtocol { uint32 protocol = 1; }
 
-message TunnelEncapSubTLVColor {
-    uint32 color = 1;
-}
+message TunnelEncapSubTLVColor { uint32 color = 1; }
 
 message TunnelEncapSubTLVUnknown {
-    uint32 type = 1;
-    bytes value = 2;
+  uint32 type = 1;
+  bytes value = 2;
 }
 
 message TunnelEncapTLV {
-    uint32 type = 1;
-    // Each TLV must be one of:
-    // - TunnelEncapSubTLVEncapsulation
-    // - TunnelEncapSubTLVProtocol
-    // - TunnelEncapSubTLVColor
-    // - TunnelEncapSubTLVUnknown
-    repeated google.protobuf.Any tlvs = 2;
+  uint32 type = 1;
+  // Each TLV must be one of:
+  // - TunnelEncapSubTLVEncapsulation
+  // - TunnelEncapSubTLVProtocol
+  // - TunnelEncapSubTLVColor
+  // - TunnelEncapSubTLVUnknown
+  repeated google.protobuf.Any tlvs = 2;
 }
 
-message TunnelEncapAttribute {
-    repeated TunnelEncapTLV tlvs = 1;
-}
+message TunnelEncapAttribute { repeated TunnelEncapTLV tlvs = 1; }
 
 message IPv6AddressSpecificExtended {
-    bool is_transitive = 1;
-    uint32 sub_type = 2;
-    string address = 3;
-    uint32 local_admin = 4;
+  bool is_transitive = 1;
+  uint32 sub_type = 2;
+  string address = 3;
+  uint32 local_admin = 4;
 }
 
 message RedirectIPv6AddressSpecificExtended {
-    string address = 1;
-    uint32 local_admin = 2;
+  string address = 1;
+  uint32 local_admin = 2;
 }
 
 message IP6ExtendedCommunitiesAttribute {
-    // Each Community must be one of:
-    // - IPv6AddressSpecificExtended
-    // - RedirectIPv6AddressSpecificExtended
-    repeated google.protobuf.Any communities = 1;
+  // Each Community must be one of:
+  // - IPv6AddressSpecificExtended
+  // - RedirectIPv6AddressSpecificExtended
+  repeated google.protobuf.Any communities = 1;
 }
 
-message AigpTLVIGPMetric {
-    uint64 metric = 1;
-}
+message AigpTLVIGPMetric { uint64 metric = 1; }
 
 message AigpTLVUnknown {
-    uint32 type = 1;
-    bytes value = 2;
+  uint32 type = 1;
+  bytes value = 2;
 }
 
 message AigpAttribute {
-    // Each TLV must be one of:
-    // - AigpTLVIGPMetric
-    // - AigpTLVUnknown
-    repeated google.protobuf.Any tlvs = 1;
+  // 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;
+  uint32 global_admin = 1;
+  uint32 local_data1 = 2;
+  uint32 local_data2 = 3;
 }
 
-message LargeCommunitiesAttribute {
-    repeated LargeCommunity communities = 1;
-}
+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;
+  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;
+  bool down = 1;
+  bool no_unicast = 2;
+  bool local_address = 3;
+  bool propagate_nssa = 4;
 }
 
 message LsSrRange {
-    uint32 begin = 1;
-    uint32 end = 2;
+  uint32 begin = 1;
+  uint32 end = 2;
 }
 
 message LsSrCapabilities {
-    bool ipv4_supported = 1;
-    bool ipv6_supported = 2;
-    repeated LsSrRange ranges = 3;
+  bool ipv4_supported = 1;
+  bool ipv6_supported = 2;
+  repeated LsSrRange ranges = 3;
 }
 
-message LsSrLocalBlock {
-    repeated LsSrRange ranges = 1;
-}
+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;
+  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;
+  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;
+  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;
+  float bandwidth = 10;
+  float reservable_bandwidth = 11;
+  repeated float unreserved_bandwidth = 12;
 
-    uint32 sr_adjacency_sid = 13;
-    repeated uint32 srlgs = 14;
+  uint32 sr_adjacency_sid = 13;
+  repeated uint32 srlgs = 14;
 }
 
 message LsAttributePrefix {
-    LsIGPFlags igp_flags = 1;
-    bytes opaque = 2;
+  LsIGPFlags igp_flags = 1;
+  bytes opaque = 2;
 
-    uint32 sr_prefix_sid = 3;
+  uint32 sr_prefix_sid = 3;
 }
 
 message LsAttribute {
-    LsAttributeNode node = 1;
-    LsAttributeLink link = 2;
-    LsAttributePrefix prefix = 3;
+  LsAttributeNode node = 1;
+  LsAttributeLink link = 2;
+  LsAttributePrefix prefix = 3;
 }
 
 message UnknownAttribute {
-    uint32 flags = 1;
-    uint32 type = 2;
-    bytes value = 3;
-}
+  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;
+}
\ No newline at end of file