d_ip.h File Reference

ROHC decompression context for the IP-only profile. More...

#include "d_generic.h"

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Functions
rohc_packet_t	ip_detect_packet_type (struct rohc_decomp *decomp, struct d_context *context, const unsigned char *packet, const size_t rohc_length, const size_t large_cid_len)
	Detect the type of ROHC packet for IP-based non-RTP profiles.
int	ip_parse_dynamic_ip (const struct d_context *const context, const unsigned char *packet, unsigned int length, struct rohc_extr_bits *const bits)
	Parse the IP dynamic part of the ROHC packet.

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Detailed Description

ROHC decompression context for the IP-only profile.

Author:

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

Didier Barvaux <didier@barvaux.org>

The hackers from ROHC for Linux

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Function Documentation

rohc_packet_t ip_detect_packet_type	(	struct rohc_decomp *	decomp,
		struct d_context *	context,
		const unsigned char *	packet,
		const size_t	rohc_length,
		const size_t	large_cid_len
	)

Detect the type of ROHC packet for IP-based non-RTP profiles.

Parameters:

decomp	The ROHC decompressor
context	The decompression context
packet	The ROHC packet
rohc_length	The length of the ROHC packet
large_cid_len	The length of the optional large CID field

Returns:

The packet type

References d_is_ir(), d_is_irdyn(), d_is_uo0(), d_is_uo1(), d_is_uor2(), d_profile::id, PACKET_IR, PACKET_IR_DYN, PACKET_UNKNOWN, PACKET_UO_0, PACKET_UO_1, PACKET_UOR_2, d_context::profile, ROHC_TRACE_DECOMP, and rohc_warning.

Referenced by d_ip_create(), and d_udp_create().

int ip_parse_dynamic_ip	(	const struct d_context *const	context,
		const unsigned char *	packet,
		unsigned int	length,
		struct rohc_extr_bits *const	bits
	)

Parse the IP dynamic part of the ROHC packet.

Parameters:

context	The decompression context
packet	The ROHC packet to parse
length	The length of the ROHC packet
bits	OUT: The bits extracted from the ROHC header

Returns:

The number of bytes read in the ROHC packet, -1 in case of failure

References d_context::decompressor, GET_NEXT_16_BITS, d_profile::id, PACKET_IR, PACKET_IR_DYN, d_generic_context::packet_type, d_context::profile, rohc_decomp_debug, rohc_ntoh16(), ROHC_TRACE_DECOMP, rohc_warning, rohc_extr_bits::sn, rohc_extr_bits::sn_nr, and d_context::specific.

Referenced by d_ip_create().