package connection import ( "github.com/cloudflare/cloudflared/edgediscovery" "github.com/cloudflare/cloudflared/h2mux" tunnelpogs "github.com/cloudflare/cloudflared/tunnelrpc/pogs" ) const ( DuplicateConnectionError = "EDUPCONN" ) type DupConnRegisterTunnelError struct{} var errDuplicationConnection = DupConnRegisterTunnelError{} func (e DupConnRegisterTunnelError) Error() string { return "already connected to this server, trying another address" } // Dial to edge server with quic failed type EdgeQuicDialError struct { Cause error } func (e EdgeQuicDialError) Error() string { return "failed to dial to edge with quic: " + e.Cause.Error() } // RegisterTunnel error from server type ServerRegisterTunnelError struct { Cause error Permanent bool } func (e ServerRegisterTunnelError) Error() string { return e.Cause.Error() } func serverRegistrationErrorFromRPC(err error) ServerRegisterTunnelError { if retryable, ok := err.(*tunnelpogs.RetryableError); ok { return ServerRegisterTunnelError{ Cause: retryable.Unwrap(), Permanent: false, } } return ServerRegisterTunnelError{ Cause: err, Permanent: true, } } type muxerShutdownError struct{} func (e muxerShutdownError) Error() string { return "muxer shutdown" } var errMuxerStopped = muxerShutdownError{} func isHandshakeErrRecoverable(err error, connIndex uint8, observer *Observer) bool { log := observer.log.With(). Uint8(LogFieldConnIndex, connIndex). Err(err). Logger() switch err.(type) { case edgediscovery.DialError: log.Error().Msg("Connection unable to dial edge") case h2mux.MuxerHandshakeError: log.Error().Msg("Connection handshake with edge server failed") default: log.Error().Msg("Connection failed") return false } return true }