ROHC common definitions and routines. More...

#include <stdlib.h>
#include <inttypes.h>

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Defines
#define	ROHC_DEPRECATED(msg)
#define	ROHC_EXPORT
#define	ROHC_ETHERTYPE 0x22f1
	The Ethertype assigned to the ROHC protocol by the IEEE.
#define	ROHC_OK 1
	Return code: the action was performed without problem.
#define	ROHC_ERROR_NO_CONTEXT -1
	Return code: the action failed because no context is defined.
#define	ROHC_ERROR_PACKET_FAILED -2
	Return code: the action failed due to an unattended or malformed packet.
#define	ROHC_FEEDBACK_ONLY -3
	Return code: the action failed because the packet only contains feedback info.
#define	ROHC_ERROR_CRC -4
	Return code: the action failed due to a CRC failure.
#define	ROHC_ERROR -5
	Return code: the action encountered a problem.
#define	ROHC_NEED_REPARSE -6
	Return code: the packet needs to be parsed again.
#define	ROHC_NEED_SEGMENT -7
	Return code: the action succeeded but packet needs to be segmented.
#define	ROHC_NON_FINAL_SEGMENT -8
	Return code: the action succeeded but packet is a non-final segment.
#define	ROHC_LARGE_CID_MAX ((1 << 14) - 1) /* 2^14 - 1 = 16383 */
	The maximum value for large CIDs.
#define	ROHC_SMALL_CID_MAX 15
	The maximum value for small CIDs.
#define	CRC_TYPE_2 1
#define	CRC_TYPE_3 2
#define	CRC_TYPE_6 3
#define	CRC_TYPE_7 4
#define	CRC_TYPE_8 5
Typedefs
typedef size_t	rohc_cid_t
Enumerations
enum	rohc_status_t { ROHC_STATUS_OK = 0, ROHC_STATUS_SEGMENT = 1, ROHC_STATUS_MALFORMED = 2, ROHC_STATUS_NO_CONTEXT = 3, ROHC_STATUS_BAD_CRC = 4, ROHC_STATUS_OUTPUT_TOO_SMALL = 5, ROHC_STATUS_ERROR = 6 }
	The status code of several functions in the library API. More...
enum	rohc_mode { U_MODE = 1, O_MODE = 2, R_MODE = 3 }
	ROHC operation modes (see 4.4 in the RFC 3095) More...
enum	rohc_mode_t { ROHC_U_MODE = 1, ROHC_O_MODE = 2, ROHC_R_MODE = 3 }
	ROHC operation modes. More...
enum	rohc_cid_type_t { ROHC_LARGE_CID, ROHC_SMALL_CID }
	The different types of Context IDs (CID) More...
enum	rohc_profile_t { ROHC_PROFILE_UNCOMPRESSED = 0x0000, ROHC_PROFILE_RTP = 0x0001, ROHC_PROFILE_UDP = 0x0002, ROHC_PROFILE_ESP = 0x0003, ROHC_PROFILE_IP = 0x0004, ROHC_PROFILE_TCP = 0x0006, ROHC_PROFILE_UDPLITE = 0x0008 }
	The different ROHC compression/decompression profiles. More...
Functions
char *ROHC_EXPORT	rohc_version (void)
	Get the version of the ROHC library.
const char *ROHC_EXPORT	rohc_strerror (const rohc_status_t status)
	Give a description for the given ROHC status code.
const char *ROHC_EXPORT	rohc_get_mode_descr (const rohc_mode_t mode)
	Give a description for the given ROHC mode.
const char *ROHC_EXPORT	rohc_get_profile_descr (const rohc_profile_t profile)
	Give a description for the given ROHC profile.
int ROHC_EXPORT	crc_get_polynom (int type)
	Get the polynom for the given CRC type.
void ROHC_EXPORT	crc_init_table (unsigned char *table, unsigned char polynum)
	Initialize a CRC table given a 256-byte table and the polynom to use.
Variables
unsigned char ROHC_EXPORT	crc_table_2 [256]
unsigned char ROHC_EXPORT	crc_table_3 [256]
unsigned char ROHC_EXPORT	crc_table_6 [256]
unsigned char ROHC_EXPORT	crc_table_7 [256]
unsigned char ROHC_EXPORT	crc_table_8 [256]