cloudflared-mirror/connection/errors.go

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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"
}
// 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
}