Representation of the IPv4 header. More...

#include <headers.hpp>

Public Member Functions
uint8_t	version () const

uint8_t	ihl () const

void	setVersion ()
	Set the version field to 4. More...

void	setIHL (uint8_t len)
	Sets the IP header length. More...

void	setPayloadLength (uint16_t len)
	Set the length of the L3-SDU. More...

uint16_t	getPayloadLength () const
	Get the length of the L3-SDU. More...

uint16_t	fragmentation () const

uint16_t	flags () const

void	setProtoICMP ()
	Set the protocol to ICMP. More...

void	setProtoTCP ()
	Set the protocol to TCP. More...

void	setProtoUDP ()
	Set the protocol to UDP. More...

void	setSrcIP (uint32_t ip)
	Set the source ip. More...

void	setDstIP (uint32_t ip)
	Set the destination ip. More...

uint32_t	getSrcIP () const
	Get the source IP. More...

uint32_t	getDstIP () const
	Get the destination IP. More...

void *	getPayload ()
	Get the SDU. More...

std::string	getSrcAddr ()

std::string	getDstAddr ()

void	setLength (uint16_t len)

uint16_t	getLength ()

void	calcChecksum ()
	Fill out the header checksum for this packet. More...

Static Public Member Functions
static std::string	addrToStr (uint32_t addr)

Public Attributes
uint8_t	version_ihl
	Version and IHL. More...

uint8_t	tos
	Type of Service. More...

uint16_t	total_length
	L3-PDU length. More...

uint16_t	id
	Identification. More...

uint16_t	flags_fragmentation
	flags and fragmentation offset More...

uint8_t	ttl
	Time to live. More...

uint8_t	proto
	next protocol More...

uint16_t	checksum
	header checksum More...

uint32_t	srcIP
	source IPv4 address More...

uint32_t	dstIP
	destination IPv4 address More...

Static Public Attributes
static constexpr uint8_t	PROTO_ICMP = 1

static constexpr uint8_t	PROTO_TCP = 6

static constexpr uint8_t	PROTO_UDP = 17

Detailed Description

Representation of the IPv4 header.

Definition at line 65 of file headers.hpp.

Member Function Documentation

◆ addrToStr()

static std::string Headers::IPv4::addrToStr ( uint32_t addr )

inlinestatic

Definition at line 153 of file headers.hpp.

◆ calcChecksum()

void Headers::IPv4::calcChecksum ( )

inline

Fill out the header checksum for this packet.

Definition at line 169 of file headers.hpp.

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◆ flags()

uint16_t Headers::IPv4::flags ( ) const

inline

Definition at line 104 of file headers.hpp.

◆ fragmentation()

uint16_t Headers::IPv4::fragmentation ( ) const

inline

Definition at line 103 of file headers.hpp.

◆ getDstAddr()

std::string Headers::IPv4::getDstAddr ( )

inline

Definition at line 162 of file headers.hpp.

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◆ getDstIP()

uint32_t Headers::IPv4::getDstIP ( ) const

inline

Get the destination IP.

Returns: Destination IP in host byte order

Definition at line 144 of file headers.hpp.

◆ getLength()

uint16_t Headers::IPv4::getLength ( )

inline

Definition at line 166 of file headers.hpp.

◆ getPayload()

void* Headers::IPv4::getPayload ( )

inline

Get the SDU.

Returns: Pointer to the payload

Definition at line 149 of file headers.hpp.

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◆ getPayloadLength()

uint16_t Headers::IPv4::getPayloadLength ( ) const

inline

Get the length of the L3-SDU.

Returns: The length of the payload (host byte order)

Definition at line 98 of file headers.hpp.

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◆ getSrcAddr()

std::string Headers::IPv4::getSrcAddr ( )

inline

Definition at line 160 of file headers.hpp.

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◆ getSrcIP()

uint32_t Headers::IPv4::getSrcIP ( ) const

inline

Get the source IP.

Returns: Source IP in host byte order

Definition at line 139 of file headers.hpp.

◆ ihl()

uint8_t Headers::IPv4::ihl ( ) const

inline

Definition at line 69 of file headers.hpp.

◆ setDstIP()

void Headers::IPv4::setDstIP ( uint32_t ip )

inline

Set the destination ip.

Parameters

ip	Destination IP in host byte order

Definition at line 134 of file headers.hpp.

◆ setIHL()

void Headers::IPv4::setIHL ( uint8_t len )

inline

Sets the IP header length.

Parameters

len	length as it will appear in the header

Definition at line 81 of file headers.hpp.

◆ setLength()

void Headers::IPv4::setLength ( uint16_t len )

inline

Definition at line 164 of file headers.hpp.

◆ setPayloadLength()

void Headers::IPv4::setPayloadLength ( uint16_t len )

inline

Set the length of the L3-SDU.

Parameters

len	of the L3-SDU (IP payload length)

Definition at line 93 of file headers.hpp.

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◆ setProtoICMP()

void Headers::IPv4::setProtoICMP ( )

inline

Set the protocol to ICMP.

Definition at line 114 of file headers.hpp.

◆ setProtoTCP()

void Headers::IPv4::setProtoTCP ( )

inline

Set the protocol to TCP.

Definition at line 117 of file headers.hpp.

◆ setProtoUDP()

void Headers::IPv4::setProtoUDP ( )

inline

Set the protocol to UDP.

Definition at line 120 of file headers.hpp.

◆ setSrcIP()

void Headers::IPv4::setSrcIP ( uint32_t ip )

inline

Set the source ip.

Parameters

ip	Source IP in host byte order

Definition at line 129 of file headers.hpp.

◆ setVersion()

void Headers::IPv4::setVersion ( )

inline

Set the version field to 4.

Definition at line 73 of file headers.hpp.

◆ version()

uint8_t Headers::IPv4::version ( ) const

inline

Definition at line 68 of file headers.hpp.

Member Data Documentation

◆ checksum

uint16_t Headers::IPv4::checksum

header checksum

Definition at line 122 of file headers.hpp.

◆ dstIP

uint32_t Headers::IPv4::dstIP

destination IPv4 address

Definition at line 124 of file headers.hpp.

◆ flags_fragmentation

uint16_t Headers::IPv4::flags_fragmentation

flags and fragmentation offset

Definition at line 101 of file headers.hpp.

◆ id

uint16_t Headers::IPv4::id

Identification.

Definition at line 100 of file headers.hpp.

◆ proto

uint8_t Headers::IPv4::proto

next protocol

Definition at line 107 of file headers.hpp.

◆ PROTO_ICMP

constexpr uint8_t Headers::IPv4::PROTO_ICMP = 1

static

Definition at line 109 of file headers.hpp.

◆ PROTO_TCP

constexpr uint8_t Headers::IPv4::PROTO_TCP = 6

static

Definition at line 110 of file headers.hpp.

◆ PROTO_UDP

constexpr uint8_t Headers::IPv4::PROTO_UDP = 17

static

Definition at line 111 of file headers.hpp.

◆ srcIP

uint32_t Headers::IPv4::srcIP

source IPv4 address

Definition at line 123 of file headers.hpp.

◆ tos

uint8_t Headers::IPv4::tos

Type of Service.

Definition at line 87 of file headers.hpp.

◆ total_length

uint16_t Headers::IPv4::total_length

L3-PDU length.

Definition at line 88 of file headers.hpp.

◆ ttl

uint8_t Headers::IPv4::ttl

Time to live.

Definition at line 106 of file headers.hpp.

◆ version_ihl

uint8_t Headers::IPv4::version_ihl

Version and IHL.

Definition at line 66 of file headers.hpp.

The documentation for this struct was generated from the following file:

/home/dominik/uni/MoonState/include/headers.hpp

Public Member Functions

Static Public Member Functions

Public Attributes

Static Public Attributes

Detailed Description

Member Function Documentation

◆ addrToStr()

◆ calcChecksum()

◆ flags()

◆ fragmentation()

◆ getDstAddr()

◆ getDstIP()

◆ getLength()

◆ getPayload()

◆ getPayloadLength()

◆ getSrcAddr()

◆ getSrcIP()

◆ ihl()

◆ setDstIP()

◆ setIHL()

◆ setLength()

◆ setPayloadLength()

◆ setProtoICMP()

◆ setProtoTCP()

◆ setProtoUDP()

◆ setSrcIP()

◆ setVersion()

◆ version()

Member Data Documentation

◆ checksum

◆ dstIP

◆ flags_fragmentation

◆ id

◆ proto

◆ PROTO_ICMP

◆ PROTO_TCP

◆ PROTO_UDP

◆ srcIP

◆ tos

◆ total_length

◆ ttl

◆ version_ihl