ip_id.c File Reference

IP-ID decompression routines. More...

#include "ip_id.h"

Include dependency graph for ip_id.c:

Functions
void	d_ip_id_init (struct d_ip_id_decode *s, int id_ref, int sn_ref)
	Initialize an IP-ID object.
int	d_ip_id_decode (struct d_ip_id_decode *s, int m, int k, int sn)
	Decode the IP-ID offset in a ROHC packet and compute the associated IP-ID.
void	d_ip_id_update (struct d_ip_id_decode *s, int id_ref, int sn_ref)
	Update the reference values for the IP-ID and the SN.

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Detailed Description

IP-ID decompression routines.

Author:

Didier Barvaux <didier.barvaux@toulouse.viveris.com>

The hackers from ROHC for Linux

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Function Documentation

int d_ip_id_decode	(	struct d_ip_id_decode *	s,
		int	m,
		int	k,
		int	sn
	)

Decode the IP-ID offset in a ROHC packet and compute the associated IP-ID.

Parameters:

s	The IP-ID object
m	The IP-ID offset
k	The number of bits used to code the IP-ID offset
sn	The SN of the ROHC packet that contains the IP-ID offset

Returns:

The computed IP-ID

References f(), d_ip_id_decode::id_ref, and d_ip_id_decode::sn_ref.

Referenced by do_decode_uo0_and_uo1(), and do_decode_uor2().

void d_ip_id_init	(	struct d_ip_id_decode *	s,
		int	id_ref,
		int	sn_ref
	)

Initialize an IP-ID object.

Parameters:

s	The IP-ID object to initialize
id_ref	The IP-ID reference
sn_ref	The reference Sequence Number (SN)

References d_ip_id_decode::id_ref, and d_ip_id_decode::sn_ref.

Referenced by ip_decode_dynamic_ip(), and rtp_decode_dynamic_rtp().

void d_ip_id_update	(	struct d_ip_id_decode *	s,
		int	id_ref,
		int	sn_ref
	)

Update the reference values for the IP-ID and the SN.

Parameters:

s	The IP-ID object
id_ref	The new IP-ID reference
sn_ref	The new SN reference

References d_ip_id_decode::id_ref, and d_ip_id_decode::sn_ref.

Referenced by act_on_crc_failure(), decode_uo0(), decode_uo1(), and decode_uor2().