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usipp::Pcap Class Reference

#include <datalink.h>

Inheritance diagram for usipp::Pcap:

List of all members.

Public Methods
	Pcap (char *)
	Pcap ()
	Pcap (const Pcap &)
virtual	~Pcap ()
Pcap&	operator= (const Pcap &)
char*	get_hwsrc (char *, size_t)
char*	get_hwdst (char *, size_t)
u_int16_t	get_etype ()
int	get_datalink ()
int	get_framelen ()
virtual int	init_device (char *dev, int promisc, size_t snaplen)
virtual int	setfilter (char *filter)
virtual int	sniffpack (void *, size_t)
void*	get_frame (void *, size_t)
pcap_t*	pcap ()
int	timeout (struct timeval)
bool	timeout ()
Protected Attributes
struct ether_header	d_ether
char	d_filter_string [1000]

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Detailed Description

Describing a Datalink.

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Constructor & Destructor Documentation

usipp::Pcap::Pcap ( char * )

This constructor should be used to initialize raw-datalink-objects, means not IP/TCP/ICMP etc. We need this b/c unlike in derived classes, datalink::init_device() cannot set a filter!

usipp::Pcap::Pcap ( const Pcap & )

Copy-constructor

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Member Function Documentation

int usipp::Pcap::get_datalink ( )

Return the actual datalink of the object.

u_int16_t usipp::Pcap::get_etype ( )

Get protocol-type of ethernet-frame Maybe moves to ethernet-class in future?

void * usipp::Pcap::get_frame ( void *, size_t )

Return HW-frame

int usipp::Pcap::get_framelen ( )

Return the actual framlen of the object. (framelen depends on datalink)

char * usipp::Pcap::get_hwdst ( char *, size_t )

Fill buffer with dst-hardware-adress of actuall packet, use 'datalink' to determine what HW the device is. Now only ethernet s supportet, but it's extensinable.

char * usipp::Pcap::get_hwsrc ( char *, size_t )

Fill buffer with src-hardware-adress of actuall packet, use 'datalink' to determine what HW the device is. Now only ethernet s supportet, but it's extensinable.

int usipp::Pcap::init_device ( char * dev, int promisc, size_t snaplen ) [virtual]

Initialize a device ("eth0" for example) for packet- capturing. It MUST be called before sniffpack() is launched. Set 'promisc' to 1 if you want the device running in promiscous mode. Fetch at most 'snaplen' bytes per call. Reimplemented from usipp::RX.

pcap_t * usipp::Pcap::pcap ( ) [inline]

Get pcap_t struct to obtain fileno etc for select.

int usipp::Pcap::setfilter ( char * filter ) [virtual]

set a new filter for capturing Reimplemented from usipp::RX.

int usipp::Pcap::sniffpack ( void *, size_t ) [virtual]

sniff a packet Reimplemented from usipp::RX.

bool usipp::Pcap::timeout ( ) [virtual]

Returns true when recv() timed out Reimplemented from usipp::RX.

int usipp::Pcap::timeout ( struct timeval ) [virtual]

Set a timeout. Implements RX::timeout() = 0. Reimplemented from usipp::RX.

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

• datalink.h

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