option cc_generic_services = false; message CMsgSteamDatagramRelayAuthTicket { message ExtraField { optional string name = 1; optional string string_value = 2; optional sint64 int64_value = 3; optional fixed64 fixed64_value = 5; } optional fixed32 time_expiry = 1; optional fixed64 authorized_steam_id = 2; optional fixed32 authorized_public_ip = 3; optional fixed64 gameserver_steam_id = 4; optional fixed64 gameserver_net_id = 5; optional bytes legacy_signature = 6; optional uint32 app_id = 7; optional fixed32 gameserver_pop_id = 9; optional uint32 virtual_port = 10; repeated .CMsgSteamDatagramRelayAuthTicket.ExtraField extra_fields = 8; } message CMsgSteamDatagramSignedRelayAuthTicket { optional fixed64 reserved_do_not_use = 1; optional fixed64 key_id = 2; optional bytes ticket = 3; optional bytes signature = 4; } message CMsgSteamDatagramCertificate { enum EKeyType { INVALID = 0; ED25519 = 1; } optional .CMsgSteamDatagramCertificate.EKeyType key_type = 1 [default = INVALID]; optional bytes key_data = 2; optional fixed64 steam_id = 4; repeated fixed32 gameserver_datacenter_ids = 5; optional fixed32 time_created = 8; optional fixed32 time_expiry = 9; optional uint32 app_id = 10; } message CMsgSteamDatagramCertificateSigned { optional bytes cert = 4; optional fixed64 ca_key_id = 5; optional bytes ca_signature = 6; }