ROHC packets for the ROHCv1 IP/TCP profile defined in RFC6846. More...

#include <stdint.h>
#include "config.h"

Include dependency graph for rfc6846.h:

This graph shows which files directly or indirectly include this file:

Data Structures
struct	ipv4_static_t
	The IPv4 static part. More...

struct	ipv4_dynamic1_t
	The IPv4 dynamic part without IP-ID field. More...

struct	ipv4_dynamic2_t
	The IPv4 dynamic part with IP-ID field. More...

struct	ipv4_replicate_t
	The IPv4 replicate part. More...

struct	ip_opt_static_t

struct	ip_dest_opt_static_t

struct	ip_hop_opt_static_t

struct	ip_rout_opt_static_t

struct	ipv6_static1_t
	The IPv6 static part, null flow_label encoded with 1 bit. More...

struct	ipv6_static2_t
	The IPv6 static part, flow_label encoded with 1+20 bits. More...

struct	ipv6_dynamic_t
	The IPv6 dynamic part. More...

struct	ipv6_replicate1_t
	The IPv6 replicate part with short Flow Label. More...

struct	ipv6_replicate2_t
	The IPv6 replicate part with long Flow Label. More...

struct	tcp_static_t
	The TCP static part. More...

struct	tcp_dynamic_t
	The TCP dynamic part. More...

struct	tcp_replicate_t
	The TCP replicate part. More...

struct	co_common_t
	The Common compressed packet format. More...

struct	rnd_1_t
	The rnd_1 compressed packet format. More...

struct	rnd_2_t
	The rnd_2 compressed packet format. More...

struct	rnd_3_t
	The rnd_3 compressed packet format. More...

struct	rnd_4_t
	The rnd_4 compressed packet format. More...

struct	rnd_5_t
	The rnd_5 compressed packet format. More...

struct	rnd_6_t
	The rnd_6 compressed packet format. More...

struct	rnd_7_t
	The rnd_7 compressed packet format. More...

struct	rnd_8_t
	The rnd_8 compressed packet format. More...

struct	seq_1_t
	The seq_1 compressed packet format. More...

struct	seq_2_t
	The seq_2 compressed packet format. More...

struct	seq_3_t
	The seq_3 compressed packet format. More...

struct	seq_4_t
	The seq_4 compressed packet format. More...

struct	seq_5_t
	The seq_5 compressed packet format. More...

struct	seq_6_t
	The seq_6 compressed packet format. More...

struct	seq_7_t
	The seq_7 compressed packet format. More...

struct	seq_8_t
	The seq_8 compressed packet format. More...

Macros
#define	ROHC_PACKET_TYPE_IR 0xFD

#define	ROHC_PACKET_TYPE_IR_CR 0xfc

#define	ROHC_PACKET_TYPE_IR_DYN 0xF8

#define	MAX_TCP_OPTION_INDEX 15U
	The largest index that may be used to identify one TCP option. More...

#define	ROHC_TCP_OPTS_MAX 15U
	The maximum of TCP options supported by the TCP profile. More...

#define	TCP_INDEX_NOP 0U

#define	TCP_INDEX_EOL 1U

#define	TCP_INDEX_MSS 2U

#define	TCP_INDEX_WS 3U

#define	TCP_INDEX_TS 4U

#define	TCP_INDEX_SACK_PERM 5U

#define	TCP_INDEX_SACK 6U

#define	TCP_INDEX_GENERIC7 7U

#define	TCP_INDEX_GENERIC8 8U

#define	TCP_INDEX_GENERIC9 9U

#define	TCP_INDEX_GENERIC10 10U

#define	TCP_INDEX_GENERIC11 11U

#define	TCP_INDEX_GENERIC12 12U

#define	TCP_INDEX_GENERIC13 13U

#define	TCP_INDEX_GENERIC14 14U

#define	TCP_INDEX_GENERIC15 15U

Enumerations
enum	{ ROHC_TCP_PORT_STATIC = 0, ROHC_TCP_PORT_LSB8 = 1, ROHC_TCP_PORT_IRREGULAR = 2, ROHC_TCP_PORT_RESERVED = 3 }
	The different presence flags for port_replicate() encoding scheme. More...

Detailed Description

ROHC packets for the ROHCv1 IP/TCP profile defined in RFC6846.

Author: FWX rohc_.nosp@m.team.nosp@m.@dial.nosp@m.ine..nosp@m.fr; Didier Barvaux didie.nosp@m.r@ba.nosp@m.rvaux.nosp@m..org; 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

Macro Definition Documentation

◆ MAX_TCP_OPTION_INDEX

#define MAX_TCP_OPTION_INDEX 15U

The largest index that may be used to identify one TCP option.

The ROHC standard defines that one TCP option is identified by an index. It also defines that index is in range [0 ; 15].

◆ ROHC_PACKET_TYPE_IR

#define ROHC_PACKET_TYPE_IR 0xFD

◆ ROHC_PACKET_TYPE_IR_CR

#define ROHC_PACKET_TYPE_IR_CR 0xfc

◆ ROHC_PACKET_TYPE_IR_DYN

#define ROHC_PACKET_TYPE_IR_DYN 0xF8

◆ ROHC_TCP_OPTS_MAX

#define ROHC_TCP_OPTS_MAX 15U

The maximum of TCP options supported by the TCP profile.

One TCP header may contain up to 40 bytes of options, so it may contain up 40 1-byte options, so the ROHC (de)compressors should expect such TCP packets. However the m field in the compressed list of TCP options (see RFC 6846, section 6.3.3 for more details) cannot be larger than 15, so restrict the number of TCP options that value. One TCP packet with more than 15 TCP options will be compressed with the IP-only profile.

See also: ROHC_TCP_OPTS_MAX_PROTO

◆ TCP_INDEX_EOL

#define TCP_INDEX_EOL 1U

◆ TCP_INDEX_GENERIC10

#define TCP_INDEX_GENERIC10 10U

◆ TCP_INDEX_GENERIC11

#define TCP_INDEX_GENERIC11 11U

◆ TCP_INDEX_GENERIC12

#define TCP_INDEX_GENERIC12 12U

◆ TCP_INDEX_GENERIC13

#define TCP_INDEX_GENERIC13 13U

◆ TCP_INDEX_GENERIC14

#define TCP_INDEX_GENERIC14 14U

◆ TCP_INDEX_GENERIC15

#define TCP_INDEX_GENERIC15 15U

◆ TCP_INDEX_GENERIC7

#define TCP_INDEX_GENERIC7 7U

◆ TCP_INDEX_GENERIC8

#define TCP_INDEX_GENERIC8 8U

◆ TCP_INDEX_GENERIC9

#define TCP_INDEX_GENERIC9 9U

◆ TCP_INDEX_MSS

#define TCP_INDEX_MSS 2U

◆ TCP_INDEX_NOP

#define TCP_INDEX_NOP 0U

◆ TCP_INDEX_SACK

#define TCP_INDEX_SACK 6U

◆ TCP_INDEX_SACK_PERM

#define TCP_INDEX_SACK_PERM 5U

◆ TCP_INDEX_TS

#define TCP_INDEX_TS 4U

◆ TCP_INDEX_WS

#define TCP_INDEX_WS 3U

Enumeration Type Documentation

◆ anonymous enum

anonymous enum

The different presence flags for port_replicate() encoding scheme.

Enumerator
ROHC_TCP_PORT_STATIC	port is static, so it is not transmitted
ROHC_TCP_PORT_LSB8	port is not static and it is compressible
ROHC_TCP_PORT_IRREGULAR	port is not static and it is not compressible
ROHC_TCP_PORT_RESERVED	reserved value

Data Structures

Macros

Enumerations