rohc_decomp_detect_packet.c File Reference

Functions related to packet detection. More...

#include "rohc_decomp_detect_packet.h"
#include "rohc_bit_ops.h"
#include "rohc_internal.h"

Include dependency graph for rohc_decomp_detect_packet.c:

Macros
#define	D_SEGMENT   (0xfe >> 1)
#define	D_IR_PACKET   (0xfc >> 1)
#define	D_IR_DYN_PACKET   0xf8

Functions
bool	rohc_decomp_packet_is_segment (const uint8_t *const data)
	Find out whether the field is a segment field or not. More...
bool	rohc_decomp_packet_is_padding (const uint8_t *const data)
	Find out whether the field is a padding field or not. More...
bool	rohc_decomp_packet_is_ir (const uint8_t *const data, const size_t len)
	Find out whether a ROHC packet is an IR packet or not. More...
bool	rohc_decomp_packet_is_irdyn (const uint8_t *const data, const size_t len)
	Find out whether a ROHC packet is an IR-DYN packet or not. More...
bool	rohc_decomp_packet_is_uo0 (const uint8_t *const data, const size_t len)
	Find out whether a ROHC packet is an UO-0 packet or not. More...
bool	rohc_decomp_packet_is_uo1 (const uint8_t *const data, const size_t len)
	Find out whether a ROHC packet is an UO-1* packet or not. More...
bool	rohc_decomp_packet_is_uo1_ts (const uint8_t *const data, const size_t len)
	Find out whether a ROHC packet is an UO-1-TS packet or not. More...
bool	rohc_decomp_packet_is_uor2 (const uint8_t *const data, const size_t len)
	Find out whether a ROHC packet is an UOR-2* packet or not. More...
bool	rohc_decomp_packet_is_uor2_ts (const uint8_t *const data, const size_t data_len, const size_t large_cid_len)
	Find out whether a ROHC packet is an UOR-2-TS packet or not. More...

Detailed Description

Functions related to packet detection.

Author

Didier Barvaux didie.nosp@m.r.ba.nosp@m.rvaux.nosp@m.@tou.nosp@m.louse.nosp@m..viv.nosp@m.eris..nosp@m.com

Didier Barvaux didie.nosp@m.r@ba.nosp@m.rvaux.nosp@m..org

Macro Definition Documentation

D_IR_DYN_PACKET

#define D_IR_DYN_PACKET   0xf8

The magic byte to find out whether a ROHC packet is an IR-DYN packet

D_IR_PACKET

#define D_IR_PACKET   (0xfc >> 1)

The magic bits to find out whether a ROHC packet is an IR packet or not

D_SEGMENT

#define D_SEGMENT   (0xfe >> 1)

The magic bits to find out whether a field is a segment field or not

Function Documentation

rohc_decomp_packet_is_ir()

bool rohc_decomp_packet_is_ir	(	const uint8_t *const	data,
		const size_t	len
	)

Find out whether a ROHC packet is an IR packet or not.

Parameters

data	The ROHC packet to analyze
len	The length of the ROHC packet

Returns

Whether the ROHC packet is an IR packet or not

rohc_decomp_packet_is_irdyn()

bool rohc_decomp_packet_is_irdyn	(	const uint8_t *const	data,
		const size_t	len
	)

Find out whether a ROHC packet is an IR-DYN packet or not.

Parameters

data	The ROHC packet to analyze
len	The length of the ROHC packet

Returns

Whether the ROHC packet is an IR-DYN packet or not

rohc_decomp_packet_is_padding()

bool rohc_decomp_packet_is_padding

(

const uint8_t *const

data

)

Find out whether the field is a padding field or not.

Parameters

data	The field to analyze

Returns

Whether the field is a padding field or not

rohc_decomp_packet_is_segment()

bool rohc_decomp_packet_is_segment

(

const uint8_t *const

data

)

Find out whether the field is a segment field or not.

Parameters

data	The field to analyze

Returns

Whether the field is a segment field or not

rohc_decomp_packet_is_uo0()

bool rohc_decomp_packet_is_uo0	(	const uint8_t *const	data,
		const size_t	len
	)

Find out whether a ROHC packet is an UO-0 packet or not.

Parameters

data	The ROHC packet to analyze
len	The length of the ROHC packet

Returns

Whether the ROHC packet is an UO-0 packet or not

rohc_decomp_packet_is_uo1()

bool rohc_decomp_packet_is_uo1	(	const uint8_t *const	data,
		const size_t	len
	)

Find out whether a ROHC packet is an UO-1* packet or not.

Parameters

data	The ROHC packet to analyze
len	The length of the ROHC packet

Returns

Whether the ROHC packet is an UO-1* packet or not

rohc_decomp_packet_is_uo1_ts()

bool rohc_decomp_packet_is_uo1_ts	(	const uint8_t *const	data,
		const size_t	len
	)

Find out whether a ROHC packet is an UO-1-TS packet or not.

Check the T field that discriminates between UO-1-TS and UO-1-ID.

Parameters

data	The ROHC packet to analyze
len	The length of the ROHC packet

Returns

Whether the ROHC packet is an UO-1-TS packet or not

rohc_decomp_packet_is_uor2()

bool rohc_decomp_packet_is_uor2	(	const uint8_t *const	data,
		const size_t	len
	)

Find out whether a ROHC packet is an UOR-2* packet or not.

Parameters

data	The ROHC packet to analyze
len	The length of the ROHC packet

Returns

Whether the ROHC packet is an UOR-2* packet or not

rohc_decomp_packet_is_uor2_ts()

bool rohc_decomp_packet_is_uor2_ts	(	const uint8_t *const	data,
		const size_t	data_len,
		const size_t	large_cid_len
	)

Find out whether a ROHC packet is an UOR-2-TS packet or not.

Check the T field that discriminates between UOR-2-TS and UOR-2-ID.

Parameters

data	The ROHC packet to analyze
data_len	The length of the ROHC packet
large_cid_len	The length of the optional large CID field

Returns

Whether the ROHC packet is an UOR-2-TS packet or not