packet.c File Reference

Functions to encode/decode DHCP packets. More...

#include <freeradius-devel/util/pair.h>
#include <freeradius-devel/util/rand.h>
#include <freeradius-devel/protocol/dhcpv4/rfc2131.h>
#include "dhcpv4.h"
#include "attrs.h"

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Macros
#define	ALIGNED_ACCESS(packet, field)    (uint8_t const *)packet + offsetof(dhcp_packet_t, field)

Functions
int	fr_dhcpv4_decode (TALLOC_CTX *ctx, fr_pair_list_t *out, uint8_t const *data, size_t data_len, unsigned int *code)
fr_packet_t *	fr_dhcpv4_packet_alloc (uint8_t const *data, ssize_t data_len)
int	fr_dhcpv4_packet_encode (fr_packet_t *packet, fr_pair_list_t *list)
uint8_t const *	fr_dhcpv4_packet_get_option (dhcp_packet_t const *packet, size_t packet_size, fr_dict_attr_t const *da)
	Retrieve a DHCP option from a raw packet buffer.

Detailed Description

Functions to encode/decode DHCP packets.

Id

a467adab8192a98126c59d74dc792c0a134b63d2

Copyright

2008,2017 The FreeRADIUS server project

2008 Alan DeKok (aland.nosp@m.@dep.nosp@m.loyin.nosp@m.grad.nosp@m.ius.c.nosp@m.om)

Definition in file packet.c.

Macro Definition Documentation

ALIGNED_ACCESS

#define ALIGNED_ACCESS	(		packet,
			field
	)		(uint8_t const *)packet + offsetof(dhcp_packet_t, field)

Function Documentation

fr_dhcpv4_decode()

int fr_dhcpv4_decode	(	TALLOC_CTX *	ctx,
		fr_pair_list_t *	out,
		uint8_t const *	data,
		size_t	data_len,
		unsigned int *	code
	)

Definition at line 119 of file packet.c.

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fr_dhcpv4_packet_alloc()

fr_packet_t * fr_dhcpv4_packet_alloc	(	uint8_t const *	data,
		ssize_t	data_len
	)

Definition at line 415 of file packet.c.

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fr_dhcpv4_packet_encode()

int fr_dhcpv4_packet_encode	(	fr_packet_t *	packet,
		fr_pair_list_t *	list
	)

Definition at line 387 of file packet.c.

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fr_dhcpv4_packet_get_option()

uint8_t const * fr_dhcpv4_packet_get_option	(	dhcp_packet_t const *	packet,
		size_t	packet_size,
		fr_dict_attr_t const *	da
	)

Retrieve a DHCP option from a raw packet buffer.

Definition at line 37 of file packet.c.

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