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error.go
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error.go
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//go:build windows
// +build windows
package divert
import (
"errors"
"fmt"
"golang.org/x/sys/windows"
)
var (
errQueueLength = fmt.Errorf("Queue length is not correct, Max: %v, Min: %v", QueueLengthMax, QueueLengthMin)
errQueueTime = fmt.Errorf("Queue time is not correct, Max: %v, Min: %v", QueueTimeMax, QueueTimeMin)
errQueueSize = fmt.Errorf("Queue size is not correct, Max: %v, Min: %v", QueueSizeMax, QueueSizeMin)
errQueueParam = errors.New("VersionMajor and VersionMinor only can be used in function GetParam")
errPriority = fmt.Errorf("Priority is not Correct, Max: %v, Min: %v", PriorityHighest, PriorityLowest)
)
const (
// The driver files WinDivert32.sys or WinDivert64.sys were not found
ErrFileNotFound = Error(windows.ERROR_FILE_NOT_FOUND)
// The calling application does not have Administrator privileges
ErrAccessDenied = Error(windows.ERROR_ACCESS_DENIED)
// This indicates an invalid packet filter string, layer, priority, or flags
ErrInvalidParameter = Error(windows.ERROR_INVALID_PARAMETER)
// The WinDivert32.sys or WinDivert64.sys driver does not have a valid digital signature (see the driver signing requirements above)
ErrInvalidImageHash = Error(windows.ERROR_INVALID_IMAGE_HASH)
// An incompatible version of the WinDivert driver is currently loaded
ErrDriverFailedPriorUnload = Error(windows.ERROR_DRIVER_FAILED_PRIOR_UNLOAD)
// The handle was opened with the WINDIVERT_FLAG_NO_INSTALL flag and the WinDivert driver is not already installed
ErrServiceDoseNotExist = Error(windows.ERROR_SERVICE_DOES_NOT_EXIST)
// This error occurs for various reasons, including: the WinDivert driver is blocked by security software; or you are using a virtualization environment that does not support drivers
ErrDriverBlocked = Error(windows.ERROR_DRIVER_BLOCKED)
// The captured packet is larger than the pPacket buffer
ErrInsufficientBuffer = Error(windows.ERROR_INSUFFICIENT_BUFFER)
// The handle has been shutdown using WinDivertShutdown() and the packet queue is empty
ErrNoData = Error(windows.ERROR_NO_DATA)
// The error code ERROR_IO_PENDING indicates that the overlapped operation has been successfully initiated and that completion will be indicated at a later time
ErrIOPending = Error(windows.ERROR_IO_PENDING)
// This error occurs when an impostor packet (with pAddr->Impostor set to 1) is injected and the ip.TTL or ipv6.HopLimit field goes to zero. This is a defense of "last resort" against infinite loops caused by impostor packets
ErrHostUnreachable = Error(windows.ERROR_HOST_UNREACHABLE)
// This error occurs when the Base Filtering Engine service has been disabled
ErrNotRegistered = Error(windows.EPT_S_NOT_REGISTERED)
// The I/O operation has been aborted because of either a thread exit or an application request
ErrOperationAborted = Error(windows.ERROR_OPERATION_ABORTED)
// The handle is invalid
ErrInvalidHandle = Error(windows.ERROR_INVALID_HANDLE)
)
// Error is ...
type Error windows.Errno
// Error is ...
func (e Error) Error() string {
switch windows.Errno(e) {
case windows.ERROR_FILE_NOT_FOUND:
return "The driver files WinDivert32.sys or WinDivert64.sys were not found"
case windows.ERROR_ACCESS_DENIED:
return "The calling application does not have Administrator privileges"
case windows.ERROR_INVALID_PARAMETER:
return "This indicates an invalid packet filter string, layer, priority, or flags"
case windows.ERROR_INVALID_IMAGE_HASH:
return "The WinDivert32.sys or WinDivert64.sys driver does not have a valid digital signature (see the driver signing requirements above)"
case windows.ERROR_DRIVER_FAILED_PRIOR_UNLOAD:
return "An incompatible version of the WinDivert driver is currently loaded"
case windows.ERROR_SERVICE_DOES_NOT_EXIST:
return "The handle was opened with the WINDIVERT_FLAG_NO_INSTALL flag and the WinDivert driver is not already installed"
case windows.ERROR_DRIVER_BLOCKED:
return "This error occurs for various reasons, including: the WinDivert driver is blocked by security software; or you are using a virtualization environment that does not support drivers"
case windows.ERROR_INSUFFICIENT_BUFFER:
return "The captured packet is larger than the pPacket buffer"
case windows.ERROR_NO_DATA:
return "The handle has been shutdown using WinDivertShutdown() and the packet queue is empty"
case windows.ERROR_IO_PENDING:
return "The error code ERROR_IO_PENDING indicates that the overlapped operation has been successfully initiated and that completion will be indicated at a later time"
case windows.ERROR_HOST_UNREACHABLE:
return "This error occurs when an impostor packet (with pAddr->Impostor set to 1) is injected and the ip.TTL or ipv6.HopLimit field goes to zero. This is a defense of \"last resort\" against infinite loops caused by impostor packets"
case windows.EPT_S_NOT_REGISTERED:
return "This error occurs when the Base Filtering Engine service has been disabled"
case windows.ERROR_OPERATION_ABORTED:
return "The I/O operation has been aborted because of either a thread exit or an application request"
case windows.ERROR_INVALID_HANDLE:
return "The handle is invalid"
default:
return windows.Errno(e).Error()
}
}