packet.hpp File Reference

#include "stdint.h"

Include dependency graph for packet.hpp:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
struct	packet_addr_t

Macros
#define	ETHER_ADDR_OCTETS   6
#define	PACKET_HDR_LENGTH   14

Typedefs
typedef struct packet_handle *	pfhandle_t

Enumerations
enum	packet_error_t {   PACKET_NO_ERROR = 0, PACKET_NOMEMORY_ERROR, PACKET_BADBUFFER_ERROR, PACKET_XMIT_ERROR,   PACKET_IFLOOKUP_ERROR, PACKET_IFNOTFOUND_ERROR, PACKET_CREATEMUTEX_ERROR, PACKET_GETMUTEX_ERROR,   PACKET_RLSMUTEX_ERROR, PACKET_RECVTIMEOUT_ERROR, PACKET_RECVFAILED_ERROR, PACKET_BIND_ERROR }

Functions
packet_error_t	mallocPacketHandle (pfhandle_t *pfhandle_r)
	Allocate memory for the packet handle. More...
void	freePacketHandle (pfhandle_t pfhandle)
	Close the packet handle. More...
packet_error_t	openInterfaceByAddr (pfhandle_t pfhandle, packet_addr_t *addr, int timeout)
	Opens the interface by link layer address. Uses libpcap. More...
void	closeInterface (pfhandle_t pfhandle)
	Close the interface. More...
packet_error_t	sendFrame (pfhandle_t pfhandle, packet_addr_t *addr, uint16_t ethertype, uint8_t *payload, size_t length)
	Sends a frame through an interface using libpcap. More...
packet_error_t	recvFrame (pfhandle_t pfhandle, packet_addr_t *addr, uint8_t *payload, size_t &length)
	Receives a frame. More...
packet_error_t	packetBind (struct packet_handle *handle, uint16_t ethertype)
	Set filters for packet handler. More...

Macro Definition Documentation

#define ETHER_ADDR_OCTETS   6

Link layer number of octets

#define PACKET_HDR_LENGTH   14

Packet header length in bytes

Typedef Documentation

typedef struct packet_handle* pfhandle_t

Type to packet handle

Enumeration Type Documentation

enum packet_error_t

Packet error enumeration. Possible values are:

• PACKET_NO_ERROR;
• PACKET_NOMEMORY_ERROR;
• PACKET_BADBUFFER_ERROR;
• PACKET_XMIT_ERROR;
• PACKET_IFLOOKUP_ERROR;
• PACKET_IFNOTFOUND_ERROR;
• PACKET_CREATEMUTEX_ERROR;
• PACKET_GETMUTEX_ERROR;
• PACKET_RLSMUTEX_ERROR;
• PACKET_RECVTIMEOUT_ERROR;
• PACKET_RECVFAILED_ERROR;
• PACKET_BIND_ERROR;

Function Documentation

void closeInterface

(

pfhandle_t

pfhandle

)

Close the interface.

Parameters

pfhandle

[in] Packet interface handler

Returns

void

void freePacketHandle

(

pfhandle_t

pfhandle

)

Close the packet handle.

Parameters

pfhandle

[in] Packet handler

Returns

void

packet_error_t mallocPacketHandle

(

pfhandle_t *

pfhandle_r

)

Allocate memory for the packet handle.

Parameters

pfhandle_r

[inout] Packet handle type

Returns

void

packet_error_t openInterfaceByAddr	(	pfhandle_t	pfhandle,
		packet_addr_t *	addr,
		int	timeout
	)

Opens the interface by link layer address. Uses libpcap.

Parameters

pfhandle	[in] Packet interface handler
addr	Link layer address
timeout	Timeout

Returns

Type packet_error_t with the error code

packet_error_t packetBind	(	struct packet_handle *	handle,
		uint16_t	ethertype
	)

Set filters for packet handler.

Parameters

handle	[in] packet interface handler
ethertype	Ethertype

Returns

packet_error_t error codes

packet_error_t recvFrame	(	pfhandle_t	pfhandle,
		packet_addr_t *	addr,
		uint8_t *	payload,
		size_t &	length
	)

Receives a frame.

Parameters

pfhandle	Packet interface handler
addr	Link layer address
payload	[out] Data buffer
length	[out] Data length

Returns

packet_error_t error codes

packet_error_t sendFrame	(	pfhandle_t	pfhandle,
		packet_addr_t *	addr,
		uint16_t	ethertype,
		uint8_t *	payload,
		size_t	length
	)

Sends a frame through an interface using libpcap.

Parameters

pfhandle	Packet Inteface handler
addr	[in] Link layer address
ethertype	Ethertype
payload	[in] Data buffer
length	Data length

Returns

packet_error_t error codes