inet_chksum.c File Reference

#include "lwip/opt.h"
#include "lwip/inet_chksum.h"
#include "lwip/def.h"
#include "lwip/ip_addr.h"
#include <stddef.h>
#include <string.h>

Go to the source code of this file.

Macros
#define	LWIP_CHKSUM   lwip_standard_chksum
#define	LWIP_CHKSUM_ALGORITHM   2

Functions
u16_t	lwip_standard_chksum (const void *dataptr, int len)
u16_t	ip_chksum_pseudo (struct pbuf *p, u8_t proto, u16_t proto_len, const ip_addr_t *src, const ip_addr_t *dest)
u16_t	ip_chksum_pseudo_partial (struct pbuf *p, u8_t proto, u16_t proto_len, u16_t chksum_len, const ip_addr_t *src, const ip_addr_t *dest)
u16_t	inet_chksum (const void *dataptr, u16_t len)
u16_t	inet_chksum_pbuf (struct pbuf *p)

Detailed Description

Incluse internet checksum functions.

Definition in file inet_chksum.c.

Macro Definition Documentation

#define LWIP_CHKSUM   lwip_standard_chksum

Definition at line 60 of file inet_chksum.c.

#define LWIP_CHKSUM_ALGORITHM   2

Definition at line 62 of file inet_chksum.c.

Function Documentation

u16_t inet_chksum	(	const void *	dataptr,
		u16_t	len
	)

Definition at line 558 of file inet_chksum.c.

u16_t inet_chksum_pbuf

(

struct pbuf *

p

)

Calculate a checksum over a chain of pbufs (without pseudo-header, much like inet_chksum only pbufs are used).

Parameters

p	pbuf chain over that the checksum should be calculated

Returns

checksum (as u16_t) to be saved directly in the protocol header

Definition at line 571 of file inet_chksum.c.

u16_t ip_chksum_pseudo	(	struct pbuf *	p,
		u8_t	proto,
		u16_t	proto_len,
		const ip_addr_t *	src,
		const ip_addr_t *	dest
	)

Definition at line 382 of file inet_chksum.c.

u16_t ip_chksum_pseudo_partial	(	struct pbuf *	p,
		u8_t	proto,
		u16_t	proto_len,
		u16_t	chksum_len,
		const ip_addr_t *	src,
		const ip_addr_t *	dest
	)

Definition at line 529 of file inet_chksum.c.

u16_t lwip_standard_chksum	(	const void *	dataptr,
		int	len
	)

Definition at line 136 of file inet_chksum.c.