syntax = "proto2";

package remoting.apis.v1;

option optimize_for = LITE_RUNTIME;

message Duration {
  optional int64 seconds = 1;
  optional int32 nanos = 2;
}

// Requests ICE Server configuration for establishing a P2P connection.
message GetIceConfigRequest {}

// Returns ICE Server configuration for establishing a P2P connection.
message GetIceConfigResponse {
  // The length of time the ICE server connection info will remain valid.
  optional Duration lifetime_duration = 1;

  // The set of ICE Servers which contain STUN/TURN connection info.
  repeated IceServer servers = 2;
}

// ICE Server configuration based on the RTCIceServer type (WebRTC w3c
// specification)[http://www.w3.org/TR/webrtc/#rtciceserver-type].
message IceServer {
  // STUN / TURN URI(s) as defined in [rfc7064] / [rfc7065] or another URI type.
  repeated string urls = 1;

  // If this IceServer object represents a TURN server, then this attribute
  // specifies the credential to use with that TURN server.
  optional string username = 2;

  // If this IceServer object represents a TURN server, then this attribute
  // specifies the credential to use with that TURN server.
  optional string credential = 3;

  // Maximum rate in kilobits per second (kilo = 1000).
  // Can be used as a hint to the bandwidth estimator to improve media quality.
  // If less than or equal to zero, the maximum send rate is not specified.
  optional int64 max_rate_kbps = 4;
}