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/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2017-2019 WireGuard LLC. All Rights Reserved.
*/
package services
import (
"fmt"
"syscall"
"golang.org/x/sys/windows"
)
type Error uint32
const (
ErrorSuccess Error = iota
ErrorRingloggerOpen
ErrorLoadConfiguration
ErrorCreateWintun
ErrorUAPIListen
ErrorDNSLookup
ErrorFirewall
ErrorDeviceSetConfig
ErrorBindSocketsToDefaultRoutes
ErrorSetNetConfig
ErrorDetermineExecutablePath
ErrorOpenNULFile
ErrorTrackTunnels
ErrorEnumerateSessions
ErrorDropPrivileges
ErrorWin32
)
func (e Error) Error() string {
switch e {
case ErrorSuccess:
return "No error"
case ErrorRingloggerOpen:
return "Unable to open log file"
case ErrorDetermineExecutablePath:
return "Unable to determine path of running executable"
case ErrorLoadConfiguration:
return "Unable to load configuration from path"
case ErrorCreateWintun:
return "Unable to create Wintun device"
case ErrorUAPIListen:
return "Unable to listen on named pipe"
case ErrorDNSLookup:
return "Unable to resolve one or more DNS hostname endpoints"
case ErrorFirewall:
return "Unable to enable firewall rules"
case ErrorDeviceSetConfig:
return "Unable to set device configuration"
case ErrorBindSocketsToDefaultRoutes:
return "Unable to bind sockets to default route"
case ErrorSetNetConfig:
return "Unable to set interface addresses, routes, dns, and/or adapter settings"
case ErrorOpenNULFile:
return "Unable to open NUL file"
case ErrorTrackTunnels:
return "Unable to track existing tunnels"
case ErrorEnumerateSessions:
return "Unable to enumerate current sessions"
case ErrorDropPrivileges:
return "Unable to drop privileges"
case ErrorWin32:
return "An internal Windows error has occurred"
default:
return "An unknown error has occurred"
}
}
func DetermineErrorCode(err error, serviceError Error) (bool, uint32) {
if syserr, ok := err.(syscall.Errno); ok {
return false, uint32(syserr)
} else if serviceError != ErrorSuccess {
return true, uint32(serviceError)
} else {
return false, windows.NO_ERROR
}
}
func CombineErrors(err error, serviceError Error) error {
if serviceError != ErrorSuccess {
if err != nil {
return fmt.Errorf("%v: %v", serviceError, err)
}
return serviceError
}
return err
}
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