tcpip

package
v1.0.7 Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Feb 25, 2026 License: AGPL-3.0 Imports: 2 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	ICMP IPProtocol = 0x01
	TCP             = 0x06
	UDP             = 0x11
)

Variables

This section is empty.

Functions

func Checksum 

func Checksum(sum uint32, b []byte) (answer [2]byte)

checksum for Internet Protocol family headers

func ConvertIPv4ToUint32 

func ConvertIPv4ToUint32(ip net.IP) uint32

func ConvertUint32ToIPv4 

func ConvertUint32ToIPv4(v uint32) net.IP

func IsIPPacket 

func IsIPPacket(packet []byte) bool

func IsIPv4 

func IsIPv4(packet []byte) bool

func IsIPv6 

func IsIPv6(packet []byte) bool

func Sum 

func Sum(b []byte) uint32

Types

type ICMPPacket 

type ICMPPacket []byte

func (ICMPPacket) Checksum 

func (p ICMPPacket) Checksum() uint16

func (ICMPPacket) Code 

func (p ICMPPacket) Code() byte

func (ICMPPacket) ResetChecksum 

func (p ICMPPacket) ResetChecksum()

func (ICMPPacket) SetChecksum 

func (p ICMPPacket) SetChecksum(sum [2]byte)

func (ICMPPacket) SetType 

func (p ICMPPacket) SetType(v ICMPType)

func (ICMPPacket) Type 

func (p ICMPPacket) Type() ICMPType

type ICMPType 

type ICMPType byte
const (
	ICMPEcho    ICMPType = 0x0
	ICMPRequest          = 0x8
)

type IPPacket 

type IPPacket interface {
	TotalLen() uint16
	HeaderLen() uint16
	DataLen() uint16
	Payload() []byte
	Protocol() IPProtocol
	SourceIP() net.IP
	SetSourceIP(ip net.IP)
	DestinationIP() net.IP
	SetDestinationIP(ip net.IP)
	ResetChecksum()
	PseudoSum() uint32
	SetFields(src net.IP, dst net.IP, protocol IPProtocol, identification uint16)
}

func NewIPPacket 

func NewIPPacket(packet []byte) IPPacket

type IPProtocol 

type IPProtocol byte

type IPv4Packet 

type IPv4Packet []byte

func (IPv4Packet) Checksum 

func (p IPv4Packet) Checksum() uint16

func (IPv4Packet) DataLen 

func (p IPv4Packet) DataLen() uint16

func (IPv4Packet) DestinationIP 

func (p IPv4Packet) DestinationIP() net.IP

func (IPv4Packet) HeaderLen 

func (p IPv4Packet) HeaderLen() uint16

func (IPv4Packet) Payload 

func (p IPv4Packet) Payload() []byte

func (IPv4Packet) Protocol 

func (p IPv4Packet) Protocol() IPProtocol

func (IPv4Packet) PseudoSum 

func (p IPv4Packet) PseudoSum() uint32

for tcp checksum

func (IPv4Packet) ResetChecksum 

func (p IPv4Packet) ResetChecksum()

func (IPv4Packet) SetChecksum 

func (p IPv4Packet) SetChecksum(sum [2]byte)

func (IPv4Packet) SetDestinationIP 

func (p IPv4Packet) SetDestinationIP(ip net.IP)

func (IPv4Packet) SetFields 

func (p IPv4Packet) SetFields(src net.IP, dst net.IP, protocol IPProtocol, identification uint16)

func (IPv4Packet) SetSourceIP 

func (p IPv4Packet) SetSourceIP(ip net.IP)

func (IPv4Packet) SourceIP 

func (p IPv4Packet) SourceIP() net.IP

func (IPv4Packet) TotalLen 

func (p IPv4Packet) TotalLen() uint16

type IPv6Packet 

type IPv6Packet []byte

func (IPv6Packet) DataLen 

func (p IPv6Packet) DataLen() uint16

func (IPv6Packet) DestinationIP 

func (p IPv6Packet) DestinationIP() net.IP

func (IPv6Packet) HeaderLen 

func (p IPv6Packet) HeaderLen() uint16

func (IPv6Packet) Payload 

func (p IPv6Packet) Payload() []byte

func (IPv6Packet) Protocol 

func (p IPv6Packet) Protocol() IPProtocol

func (IPv6Packet) PseudoSum 

func (p IPv6Packet) PseudoSum() uint32

for tcp checksum

func (IPv6Packet) ResetChecksum 

func (p IPv6Packet) ResetChecksum()

func (IPv6Packet) SetDestinationIP 

func (p IPv6Packet) SetDestinationIP(ip net.IP)

func (IPv6Packet) SetFields 

func (p IPv6Packet) SetFields(src net.IP, dst net.IP, protocol IPProtocol, identification uint16)

func (IPv6Packet) SetSourceIP 

func (p IPv6Packet) SetSourceIP(ip net.IP)

func (IPv6Packet) SourceIP 

func (p IPv6Packet) SourceIP() net.IP

func (IPv6Packet) TotalLen 

func (p IPv6Packet) TotalLen() uint16

type TCPPacket 

type TCPPacket []byte

func (TCPPacket) Checksum 

func (p TCPPacket) Checksum() uint16

func (TCPPacket) DestinationPort 

func (p TCPPacket) DestinationPort() uint16

func (TCPPacket) IsSYN 

func (p TCPPacket) IsSYN() bool

func (TCPPacket) ResetChecksum 

func (p TCPPacket) ResetChecksum(psum uint32)

func (TCPPacket) SetChecksum 

func (p TCPPacket) SetChecksum(sum [2]byte)

func (TCPPacket) SetDestinationPort 

func (p TCPPacket) SetDestinationPort(port uint16)

func (TCPPacket) SetSourcePort 

func (p TCPPacket) SetSourcePort(port uint16)

func (TCPPacket) SourcePort 

func (p TCPPacket) SourcePort() uint16

type UDPPacket 

type UDPPacket []byte

func (UDPPacket) Checksum 

func (p UDPPacket) Checksum() uint16

func (UDPPacket) DestinationPort 

func (p UDPPacket) DestinationPort() uint16

func (UDPPacket) Length 

func (p UDPPacket) Length() uint16

func (UDPPacket) ResetChecksum 

func (p UDPPacket) ResetChecksum(psum uint32)

func (UDPPacket) SetChecksum 

func (p UDPPacket) SetChecksum(sum [2]byte)

func (UDPPacket) SetDestinationPort 

func (p UDPPacket) SetDestinationPort(port uint16)

func (UDPPacket) SetLength 

func (p UDPPacket) SetLength(length uint16)

func (UDPPacket) SetSourcePort 

func (p UDPPacket) SetSourcePort(port uint16)

func (UDPPacket) SourcePort 

func (p UDPPacket) SourcePort() uint16

Source Files

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