tcpip

package
v0.0.0-...-dddbfaa Latest Latest
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This package is not in the latest version of its module.

 Go to latest Published: Jun 14, 2023 License: MIT Imports: 4 Imported by: 0

Documentation

Index

Constants

View Source 
const (
	ICMPTypePingRequest  byte = 0x8
	ICMPTypePingResponse byte = 0x0
)
View Source 
const (
	ICMP IPProtocol = 0x01
	TCP             = 0x06
	UDP             = 0x11
)

IPProtocol type

View Source 
const (
	FlagDontFragment = 1 << 1
	FlagMoreFragment = 1 << 2
)
View Source 
const (
	TCPFin uint16 = 1 << 0
	TCPSyn uint16 = 1 << 1
	TCPRst uint16 = 1 << 2
	TCPPuh uint16 = 1 << 3
	TCPAck uint16 = 1 << 4
	TCPUrg uint16 = 1 << 5
	TCPEce uint16 = 1 << 6
	TCPEwr uint16 = 1 << 7
	TCPNs  uint16 = 1 << 8
)
View Source 
const IPv4HeaderSize = 20
View Source 
const TCPHeaderSize = 20
View Source 
const UDPHeaderSize = 8

Variables

This section is empty.

Functions

func BroadcastAddr 

func BroadcastAddr(network netip.Prefix) netip.Addr

func Checksum 

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

Checksum for Internet Protocol family headers

func IsIPv4 

func IsIPv4(packet []byte) bool

func SetIPv4 

func SetIPv4(packet []byte)

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

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() netip.Addr

func (IPv4Packet) Flags 

func (p IPv4Packet) Flags() byte

func (IPv4Packet) FragmentOffset 

func (p IPv4Packet) FragmentOffset() uint16

func (IPv4Packet) HeaderLen 

func (p IPv4Packet) HeaderLen() uint16

func (IPv4Packet) Identification 

func (p IPv4Packet) Identification() 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

PseudoSum 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 netip.Addr)

func (IPv4Packet) SetFlags 

func (p IPv4Packet) SetFlags(flags byte)

func (IPv4Packet) SetFragmentOffset 

func (p IPv4Packet) SetFragmentOffset(offset uint32)

func (IPv4Packet) SetHeaderLen 

func (p IPv4Packet) SetHeaderLen(length uint16)

func (IPv4Packet) SetIdentification 

func (p IPv4Packet) SetIdentification(id uint16)

func (IPv4Packet) SetProtocol 

func (p IPv4Packet) SetProtocol(protocol IPProtocol)

func (IPv4Packet) SetSourceIP 

func (p IPv4Packet) SetSourceIP(ip netip.Addr)

func (IPv4Packet) SetTimeToLive 

func (p IPv4Packet) SetTimeToLive(ttl byte)

func (IPv4Packet) SetTotalLength 

func (p IPv4Packet) SetTotalLength(length uint16)

func (IPv4Packet) SetTypeOfService 

func (p IPv4Packet) SetTypeOfService(tos byte)

func (IPv4Packet) SourceIP 

func (p IPv4Packet) SourceIP() netip.Addr

func (IPv4Packet) TimeToLive 

func (p IPv4Packet) TimeToLive() byte

func (IPv4Packet) TotalLen 

func (p IPv4Packet) TotalLen() uint16

func (IPv4Packet) TypeOfService 

func (p IPv4Packet) TypeOfService() byte

func (IPv4Packet) Valid 

func (p IPv4Packet) Valid() bool

type TCPPacket 

type TCPPacket []byte

func (TCPPacket) Checksum 

func (p TCPPacket) Checksum() uint16

func (TCPPacket) DestinationPort 

func (p TCPPacket) DestinationPort() uint16

func (TCPPacket) Flags 

func (p TCPPacket) Flags() uint16

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

func (TCPPacket) Valid 

func (p TCPPacket) Valid() bool

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) Payload 

func (p UDPPacket) Payload() []byte

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

func (UDPPacket) Valid 

func (p UDPPacket) Valid() bool

Source Files

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