syntax = "proto3";
package nebula;

option go_package = "github.com/slackhq/nebula";

message NebulaMeta {
  enum MessageType {
    None = 0;
    HostQuery = 1;
    HostQueryReply = 2;
    HostUpdateNotification = 3;
    HostMovedNotification = 4;
    HostPunchNotification = 5;
    HostWhoami = 6;
    HostWhoamiReply = 7;
    PathCheck = 8;
    PathCheckReply = 9;
    HostUpdateNotificationAck = 10;
  }

  MessageType Type = 1;
  NebulaMetaDetails Details = 2;
}

message NebulaMetaDetails {
  uint32 OldVpnAddr = 1 [deprecated = true];
  Addr VpnAddr = 6;

  repeated uint32 OldRelayVpnAddrs = 5 [deprecated = true];
  repeated Addr RelayVpnAddrs = 7;

  repeated V4AddrPort V4AddrPorts = 2;
  repeated V6AddrPort V6AddrPorts = 4;
  uint32 counter = 3;
}

message Addr {
  uint64 Hi = 1;
  uint64 Lo = 2;
}

message V4AddrPort {
  uint32 Addr = 1;
  uint32 Port = 2;
}

message V6AddrPort {
  uint64 Hi = 1;
  uint64 Lo = 2;
  uint32 Port = 3;
}

message NebulaPing {
  enum MessageType {
		Ping = 0;
		Reply = 1;
	}

	MessageType Type = 1;
	uint64 Time = 2;
}

message NebulaHandshake {
  NebulaHandshakeDetails Details = 1;
  bytes Hmac = 2;
}

message NebulaHandshakeDetails {
  bytes Cert = 1;
  uint32 InitiatorIndex = 2;
  uint32 ResponderIndex = 3;
  uint64 Cookie = 4;
  uint64 Time = 5;
  uint32 CertVersion = 8;
  // reserved for WIP multiport
  reserved 6, 7;
}

message NebulaControl {
  enum MessageType {
    None = 0;
    CreateRelayRequest = 1;
    CreateRelayResponse = 2;
  }
  MessageType Type = 1;

  uint32 InitiatorRelayIndex = 2;
  uint32 ResponderRelayIndex = 3;

  uint32 OldRelayToAddr = 4 [deprecated = true];
  uint32 OldRelayFromAddr = 5 [deprecated = true];

  Addr RelayToAddr = 6;
  Addr RelayFromAddr = 7;
}