The ROHC compression profile. More...

#include <rohc_comp_internals.h>

Data Fields
const rohc_profile_t	id

bool(*	create )(struct rohc_comp_ctxt const context, const struct rohc_pkt_hdrs const uncomp_pkt_hdrs)
	The handler used to create the profile-specific part of the compression context from a given packet. More...

bool(*	clone )(struct rohc_comp_ctxt const ctxt, const struct rohc_comp_ctxt const base_ctxt)
	The handler used to create the profile-specific part of the compression context from a given context. More...

void(*	destroy )(struct rohc_comp_ctxt *const context)
	The handler used to destroy the profile-specific part of the compression context. More...

bool(*	is_cr_possible )(const struct rohc_comp_ctxt const ctxt, const struct rohc_pkt_hdrs const pkt_hdrs)
	The handler used to check whether Context Replication is possible. More...

int(*	encode )(struct rohc_comp_ctxt const context, const struct rohc_pkt_hdrs const uncomp_pkt_hdrs, uint8_t const rohc_pkt, const size_t rohc_pkt_max_len, rohc_packet_t const packet_type)
	The handler used to encode uncompressed IP packets. More...

bool(*	feedback )(struct rohc_comp_ctxt const context, const enum rohc_feedback_type feedback_type, const uint8_t const packet, const size_t packet_len, const uint8_t *const feedback_data, const size_t feedback_data_len)
	The handler used to warn the profile-specific part of the context about the arrival of feedback data. More...

Detailed Description

The ROHC compression profile.

The object defines a ROHC profile. Each field must be filled in for each new profile.

Field Documentation

◆ clone

bool(* rohc_comp_profile::clone) (struct rohc_comp_ctxt *const ctxt, const struct rohc_comp_ctxt *const base_ctxt)

The handler used to create the profile-specific part of the compression context from a given context.

◆ create

bool(* rohc_comp_profile::create) (struct rohc_comp_ctxt *const context, const struct rohc_pkt_hdrs *const uncomp_pkt_hdrs)

The handler used to create the profile-specific part of the compression context from a given packet.

Parameters

context	The compression context
uncomp_pkt_hdrs	The uncompressed headers to initialize the new context

Returns: true if successful, false otherwise

◆ destroy

void(* rohc_comp_profile::destroy) (struct rohc_comp_ctxt *const context)

The handler used to destroy the profile-specific part of the compression context.

◆ encode

int(* rohc_comp_profile::encode) (struct rohc_comp_ctxt *const context, const struct rohc_pkt_hdrs *const uncomp_pkt_hdrs, uint8_t *const rohc_pkt, const size_t rohc_pkt_max_len, rohc_packet_t *const packet_type)

The handler used to encode uncompressed IP packets.

Parameters

context	The compression context
uncomp_pkt_hdrs	The uncompressed headers to encode
rohc_pkt	OUT: The ROHC packet
rohc_pkt_max_len	The maximum length of the ROHC packet
packet_type	OUT: The type of ROHC packet that is created

Returns: The length of the ROHC packet if successful, -1 otherwise

◆ feedback

bool(* rohc_comp_profile::feedback) (struct rohc_comp_ctxt *const context, const enum rohc_feedback_type feedback_type, const uint8_t *const packet, const size_t packet_len, const uint8_t *const feedback_data, const size_t feedback_data_len)

The handler used to warn the profile-specific part of the context about the arrival of feedback data.