util

package

v2.1.1 Latest Latest Go to latest Published: Mar 16, 2023 License: MIT Imports: 17 Imported by: 0

Details

Valid go.mod file
Redistributable license
Tagged version
Stable version
Learn more about best practices

Repository

github.com/nange/easyss

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Documentation ¶

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Index ¶

Constants
func Command(name string, arg ...string) (string, error)
func CommandContext(ctx context.Context, name string, arg ...string) (string, error)
func CurrentDir() string
func DirFileList(dir string) ([]string, error)
func EncodeHTTP2Header(frameType FrameType, flag uint8, rawDataLen int, dst []byte) (header []byte, padSize byte)
func FileExists(path string) (bool, error)
func HasPad(header []byte) bool
func IsDataFrame(header []byte) bool
func IsIP(ip string) bool
func IsIPV6(ip string) bool
func IsLoopbackIP(ip string) bool
func IsNeedACK(header []byte) bool
func IsPingFrame(header []byte) bool
func IsPrivateIP(ip string) bool
func IsRSTACKFrame(header []byte) bool
func IsRSTFINFrame(header []byte) bool
func IsTCPProto(header []byte) bool
func IsUDPProto(header []byte) bool
func LogFilePath() string
func PayloadLen(header []byte) int
func RandomBetween(min, max int64) int64
func ReadFileLines(file string) ([]string, error)
func ReadFileLinesMap(file string) (map[string]struct{}, error)
func SetLogFileHook(logDir string)
func SetSysDNS(v []string) error
func SysDNS() ([]string, error)
func SysGatewayAndDevice() (gw string, dev string, err error)
func SysPowershellMajorVersion() int
func SysSupportPowershell() bool
func WriteToTemp(filename string, content []byte) (namePath string, err error)
type FrameType
- func FrameTypeFromHeader(header []byte) FrameType
- func ParseFrameTypeFrom(i uint8) FrameType
- func (ft FrameType) String() string
- func (ft FrameType) ToUint8() uint8

Constants ¶

View Source

const (
	LogMaxAge     = 1  // one day
	LogMaxBackups = 1  // one backup
	LogMaxSize    = 10 // 10Mb
	LogFileName   = "easyss.log"
)

View Source

const (
	Http2HeaderLen = 9
	PaddingSize    = 64
	MaxPaddingSize = 255
	MinPaddingSize = 64
)

View Source

const (
	FlagTCP uint8 = 1 << iota
	FlagUDP
	FlagICMP
	FlagPad
	FlagNeedACK
	FlagFIN
	FlagACK
)

View Source

const FlagDefault uint8 = 0

Variables ¶

This section is empty.

Functions ¶

func Command ¶

func Command(name string, arg ...string) (string, error)

func CommandContext ¶

func CommandContext(ctx context.Context, name string, arg ...string) (string, error)

func CurrentDir ¶

func CurrentDir() string

func DirFileList ¶

func DirFileList(dir string) ([]string, error)

func EncodeHTTP2Header ¶

func EncodeHTTP2Header(frameType FrameType, flag uint8, rawDataLen int, dst []byte) (header []byte, padSize byte)

func FileExists ¶

func FileExists(path string) (bool, error)

func HasPad ¶

func HasPad(header []byte) bool

HasPad returns true if http2 header frame has pad field, panic if header's length not equals Http2HeaderLen

func IsDataFrame ¶

func IsDataFrame(header []byte) bool

func IsIP ¶

func IsIP(ip string) bool

func IsIPV6 ¶

func IsIPV6(ip string) bool

func IsLoopbackIP ¶

func IsLoopbackIP(ip string) bool

func IsNeedACK ¶

func IsNeedACK(header []byte) bool

func IsPingFrame ¶

func IsPingFrame(header []byte) bool

func IsPrivateIP ¶

func IsPrivateIP(ip string) bool

func IsRSTACKFrame ¶

func IsRSTACKFrame(header []byte) bool

func IsRSTFINFrame ¶

func IsRSTFINFrame(header []byte) bool

func IsTCPProto ¶

func IsTCPProto(header []byte) bool

func IsUDPProto ¶

func IsUDPProto(header []byte) bool

func LogFilePath ¶

func LogFilePath() string

func PayloadLen ¶

func PayloadLen(header []byte) int

PayloadLen returns payload length in http2 header frame, panic if header's length not equals Http2HeaderLen

func RandomBetween ¶

func RandomBetween(min, max int64) int64

func ReadFileLines ¶

func ReadFileLines(file string) ([]string, error)

func ReadFileLinesMap ¶

func ReadFileLinesMap(file string) (map[string]struct{}, error)

func SetLogFileHook ¶

func SetLogFileHook(logDir string)

func SetSysDNS ¶

func SetSysDNS(v []string) error

func SysDNS ¶

func SysDNS() ([]string, error)

func SysGatewayAndDevice ¶

func SysGatewayAndDevice() (gw string, dev string, err error)

func SysPowershellMajorVersion ¶

func SysPowershellMajorVersion() int

func SysSupportPowershell ¶

func SysSupportPowershell() bool

func WriteToTemp ¶

func WriteToTemp(filename string, content []byte) (namePath string, err error)

Types ¶

type FrameType ¶

type FrameType uint8

const (
	FrameTypeData    FrameType = 0x0
	FrameTypeRST     FrameType = 0x3
	FrameTypePing    FrameType = 0x6
	FrameTypeUnknown FrameType = 0xff
)

func FrameTypeFromHeader ¶

func FrameTypeFromHeader(header []byte) FrameType

func ParseFrameTypeFrom ¶

func ParseFrameTypeFrom(i uint8) FrameType

func (FrameType) String ¶

func (ft FrameType) String() string

func (FrameType) ToUint8 ¶

func (ft FrameType) ToUint8() uint8

Source Files ¶

View all Source files

Directories ¶

Path	Synopsis
bytespool Package bytespool provides a pool of []byte.	Package bytespool provides a pool of []byte.

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