#include "lwip/arch.h"

Include dependency graph for tcp.h:

Classes
struct	tcp_hdr

Macros
#define	TCP_HLEN 20

#define	TCP_FIN 0x01U

#define	TCP_SYN 0x02U

#define	TCP_RST 0x04U

#define	TCP_PSH 0x08U

#define	TCP_ACK 0x10U

#define	TCP_URG 0x20U

#define	TCP_ECE 0x40U

#define	TCP_CWR 0x80U

#define	TCP_FLAGS 0x3fU

#define	TCP_MAX_OPTION_BYTES 40

#define	TCPH_HDRLEN(phdr) ((u16_t)(lwip_ntohs((phdr)->_hdrlen_rsvd_flags) >> 12))

#define	TCPH_HDRLEN_BYTES(phdr) ((u8_t)(TCPH_HDRLEN(phdr) << 2))

#define	TCPH_FLAGS(phdr) ((u8_t)((lwip_ntohs((phdr)->_hdrlen_rsvd_flags) & TCP_FLAGS)))

#define	TCPH_HDRLEN_SET(phdr, len) (phdr)->_hdrlen_rsvd_flags = lwip_htons(((len) << 12) \| TCPH_FLAGS(phdr))

#define	TCPH_FLAGS_SET(phdr, flags) (phdr)->_hdrlen_rsvd_flags = (((phdr)->_hdrlen_rsvd_flags & PP_HTONS(~TCP_FLAGS)) \| lwip_htons(flags))

#define	TCPH_HDRLEN_FLAGS_SET(phdr, len, flags) (phdr)->_hdrlen_rsvd_flags = (u16_t)(lwip_htons((u16_t)((len) << 12) \| (flags)))

#define	TCPH_SET_FLAG(phdr, flags) (phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags \| lwip_htons(flags))

#define	TCPH_UNSET_FLAG(phdr, flags) (phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags & ~lwip_htons(flags))

Variables
PACK_STRUCT_BEGIN struct tcp_hdr	PACK_STRUCT_STRUCT

Detailed Description

TCP protocol definitions

Macro Definition Documentation

◆ TCP_ACK

#define TCP_ACK 0x10U

◆ TCP_CWR

#define TCP_CWR 0x80U

◆ TCP_ECE

#define TCP_ECE 0x40U

◆ TCP_FIN

#define TCP_FIN 0x01U

◆ TCP_FLAGS

#define TCP_FLAGS 0x3fU

◆ TCP_HLEN

#define TCP_HLEN 20

◆ TCP_MAX_OPTION_BYTES

#define TCP_MAX_OPTION_BYTES 40

◆ TCP_PSH

#define TCP_PSH 0x08U

◆ TCP_RST

#define TCP_RST 0x04U

◆ TCP_SYN

#define TCP_SYN 0x02U

◆ TCP_URG

#define TCP_URG 0x20U

◆ TCPH_FLAGS

#define TCPH_FLAGS ( phdr ) ((u8_t)((lwip_ntohs((phdr)->_hdrlen_rsvd_flags) & TCP_FLAGS)))

◆ TCPH_FLAGS_SET

#define TCPH_FLAGS_SET	(	phdr,
		flags
	)	(phdr)->_hdrlen_rsvd_flags = (((phdr)->_hdrlen_rsvd_flags & PP_HTONS(~TCP_FLAGS)) \| lwip_htons(flags))

◆ TCPH_HDRLEN

#define TCPH_HDRLEN ( phdr ) ((u16_t)(lwip_ntohs((phdr)->_hdrlen_rsvd_flags) >> 12))

◆ TCPH_HDRLEN_BYTES

#define TCPH_HDRLEN_BYTES ( phdr ) ((u8_t)(TCPH_HDRLEN(phdr) << 2))

◆ TCPH_HDRLEN_FLAGS_SET

#define TCPH_HDRLEN_FLAGS_SET	(	phdr,
		len,
		flags
	)	(phdr)->_hdrlen_rsvd_flags = (u16_t)(lwip_htons((u16_t)((len) << 12) \| (flags)))

◆ TCPH_HDRLEN_SET

#define TCPH_HDRLEN_SET	(	phdr,
		len
	)	(phdr)->_hdrlen_rsvd_flags = lwip_htons(((len) << 12) \| TCPH_FLAGS(phdr))

◆ TCPH_SET_FLAG

#define TCPH_SET_FLAG	(	phdr,
		flags
	)	(phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags \| lwip_htons(flags))

◆ TCPH_UNSET_FLAG

#define TCPH_UNSET_FLAG	(	phdr,
		flags
	)	(phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags & ~lwip_htons(flags))

Variable Documentation

◆ PACK_STRUCT_STRUCT

PACK_STRUCT_BEGIN struct tcp_hdr PACK_STRUCT_STRUCT

Classes

Macros

Variables