c_profile Struct Reference

The ROHC compression profile. More...

#include <rohc_comp_internals.h>

Data Fields
const unsigned short	protocol
	The IP protocol ID used to find out which profile is able to compress an IP packet.
const unsigned short	id
const char *	description
int(*	create )(struct c_context *const context, const struct ip_packet *packet)
	The handler used to create the profile-specific part of the compression context.
void(*	destroy )(struct c_context *const context)
	The handler used to destroy the profile-specific part of the compression context.
bool(*	check_profile )(const struct rohc_comp *const comp, const struct ip_packet *const outer_ip, const struct ip_packet *const inner_ip, const uint8_t protocol, rohc_ctxt_key_t *const ctxt_key)
	The handler used to check whether an uncompressed IP packet fits the current profile or not.
bool(*	check_context )(const struct c_context *context, const struct ip_packet *packet)
	The handler used to check whether an uncompressed IP packet belongs to a context or not.
int(*	encode )(struct c_context *const context, const struct ip_packet *packet, const size_t packet_size, unsigned char *const dest, const size_t dest_size, rohc_packet_t *const packet_type, int *const payload_offset)
	The handler used to encode uncompressed IP packets.
bool(*	reinit_context )(struct c_context *const context) __attribute__((nonnull(1)
	The handler used to re-initialize a context.
bool(*	warn_unused_result )
void(*	feedback )(struct c_context *const context, const struct c_feedback *feedback)
	The handler used to warn the profile-specific part of the context about the arrival of feedback data.
bool(*	use_udp_port )(const struct c_context *const context, const unsigned int port)
	The handler used to detect if a UDP port is used by the profile.

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Detailed Description

The ROHC compression profile.

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

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Field Documentation

bool(* c_profile::check_context)(const struct c_context *context, const struct ip_packet *packet)

The handler used to check whether an uncompressed IP packet belongs to a context or not.

bool(* c_profile::check_profile)(const struct rohc_comp *const comp, const struct ip_packet *const outer_ip, const struct ip_packet *const inner_ip, const uint8_t protocol, rohc_ctxt_key_t *const ctxt_key)

The handler used to check whether an uncompressed IP packet fits the current profile or not.

int(* c_profile::create)(struct c_context *const context, const struct ip_packet *packet)

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

const char* c_profile::description

A string that describes the profile

Referenced by rohc_c_statistics(), and rohc_compress2().

void(* c_profile::destroy)(struct c_context *const context)

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

Referenced by rohc_comp_remove_rtp_port(), and rohc_compress2().

int(* c_profile::encode)(struct c_context *const context, const struct ip_packet *packet, const size_t packet_size, unsigned char *const dest, const size_t dest_size, rohc_packet_t *const packet_type, int *const payload_offset)

The handler used to encode uncompressed IP packets.

Referenced by rohc_compress2().

void(* c_profile::feedback)(struct c_context *const context, const struct c_feedback *feedback)

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

Referenced by c_deliver_feedback().

const unsigned short c_profile::id

The profile ID as reserved by IANA

Referenced by c_generic_create(), c_generic_encode(), c_generic_feedback(), c_udp_check_context(), change_mode(), change_state(), code_EXT0_packet(), code_EXT1_packet(), code_EXT2_packet(), code_EXT3_packet(), code_ipv6_dynamic_part(), code_IR_DYN_packet(), code_IR_packet(), code_UO1_packet(), code_UO2_packet(), code_UOR2_bytes(), code_UOR2_ID_bytes(), code_UOR2_RTP_bytes(), code_UOR2_TS_bytes(), decide_extension(), periodic_down_transition(), rohc_c_statistics(), rohc_comp_get_last_packet_info2(), rohc_compress2(), and rtp_header_flags_and_fields().

const unsigned short c_profile::protocol

The IP protocol ID used to find out which profile is able to compress an IP packet.

bool(* c_profile::reinit_context)(struct c_context *const context) __attribute__((nonnull(1)

The handler used to re-initialize a context.

Referenced by rohc_comp_force_contexts_reinit().

bool(* c_profile::use_udp_port)(const struct c_context *const context, const unsigned int port)

The handler used to detect if a UDP port is used by the profile.

Referenced by rohc_comp_remove_rtp_port().

bool(* c_profile::warn_unused_result)

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

• rohc_comp_internals.h