package quic import ( "errors" "time" "github.com/lucas-clemente/quic-go/internal/utils" "github.com/lucas-clemente/quic-go/internal/protocol" ) // Clone clones a Config func (c *Config) Clone() *Config { copy := *c return © } func (c *Config) handshakeTimeout() time.Duration { return utils.MaxDuration(protocol.DefaultHandshakeTimeout, 2*c.HandshakeIdleTimeout) } func validateConfig(config *Config) error { if config == nil { return nil } if config.MaxIncomingStreams > 1<<60 { return errors.New("invalid value for Config.MaxIncomingStreams") } if config.MaxIncomingUniStreams > 1<<60 { return errors.New("invalid value for Config.MaxIncomingUniStreams") } return nil } // populateServerConfig populates fields in the quic.Config with their default values, if none are set // it may be called with nil func populateServerConfig(config *Config) *Config { config = populateConfig(config) if config.ConnectionIDLength == 0 { config.ConnectionIDLength = protocol.DefaultConnectionIDLength } if config.AcceptToken == nil { config.AcceptToken = defaultAcceptToken } return config } // populateClientConfig populates fields in the quic.Config with their default values, if none are set // it may be called with nil func populateClientConfig(config *Config, createdPacketConn bool) *Config { config = populateConfig(config) if config.ConnectionIDLength == 0 && !createdPacketConn { config.ConnectionIDLength = protocol.DefaultConnectionIDLength } return config } func populateConfig(config *Config) *Config { if config == nil { config = &Config{} } versions := config.Versions if len(versions) == 0 { versions = protocol.SupportedVersions } handshakeIdleTimeout := protocol.DefaultHandshakeIdleTimeout if config.HandshakeIdleTimeout != 0 { handshakeIdleTimeout = config.HandshakeIdleTimeout } idleTimeout := protocol.DefaultIdleTimeout if config.MaxIdleTimeout != 0 { idleTimeout = config.MaxIdleTimeout } initialStreamReceiveWindow := config.InitialStreamReceiveWindow if initialStreamReceiveWindow == 0 { initialStreamReceiveWindow = protocol.DefaultInitialMaxStreamData } maxStreamReceiveWindow := config.MaxStreamReceiveWindow if maxStreamReceiveWindow == 0 { maxStreamReceiveWindow = protocol.DefaultMaxReceiveStreamFlowControlWindow } initialConnectionReceiveWindow := config.InitialConnectionReceiveWindow if initialConnectionReceiveWindow == 0 { initialConnectionReceiveWindow = protocol.DefaultInitialMaxData } maxConnectionReceiveWindow := config.MaxConnectionReceiveWindow if maxConnectionReceiveWindow == 0 { maxConnectionReceiveWindow = protocol.DefaultMaxReceiveConnectionFlowControlWindow } maxIncomingStreams := config.MaxIncomingStreams if maxIncomingStreams == 0 { maxIncomingStreams = protocol.DefaultMaxIncomingStreams } else if maxIncomingStreams < 0 { maxIncomingStreams = 0 } maxIncomingUniStreams := config.MaxIncomingUniStreams if maxIncomingUniStreams == 0 { maxIncomingUniStreams = protocol.DefaultMaxIncomingUniStreams } else if maxIncomingUniStreams < 0 { maxIncomingUniStreams = 0 } maxDatagrameFrameSize := config.MaxDatagramFrameSize if maxDatagrameFrameSize == 0 { maxDatagrameFrameSize = int64(protocol.DefaultMaxDatagramFrameSize) } return &Config{ Versions: versions, HandshakeIdleTimeout: handshakeIdleTimeout, MaxIdleTimeout: idleTimeout, AcceptToken: config.AcceptToken, KeepAlivePeriod: config.KeepAlivePeriod, InitialStreamReceiveWindow: initialStreamReceiveWindow, MaxStreamReceiveWindow: maxStreamReceiveWindow, InitialConnectionReceiveWindow: initialConnectionReceiveWindow, MaxConnectionReceiveWindow: maxConnectionReceiveWindow, AllowConnectionWindowIncrease: config.AllowConnectionWindowIncrease, MaxIncomingStreams: maxIncomingStreams, MaxIncomingUniStreams: maxIncomingUniStreams, ConnectionIDLength: config.ConnectionIDLength, StatelessResetKey: config.StatelessResetKey, TokenStore: config.TokenStore, EnableDatagrams: config.EnableDatagrams, MaxDatagramFrameSize: maxDatagrameFrameSize, DisablePathMTUDiscovery: config.DisablePathMTUDiscovery, DisableVersionNegotiationPackets: config.DisableVersionNegotiationPackets, Tracer: config.Tracer, } }