inet.c File Reference

#include "lwip/opt.h"
#include "lwip/arch.h"
#include "lwip/def.h"
#include "lwip/inet.h"
#include "lwip/sys.h"

Include dependency graph for inet.c:

Macros
#define	LWIP_CHKSUM   lwip_standard_chksum

Functions
static u16_t	lwip_standard_chksum (void *dataptr, u16_t len)
u16_t	inet_chksum_pseudo (struct pbuf *p, struct ip_addr *src, struct ip_addr *dest, u8_t proto, u16_t proto_len)
u16_t	inet_chksum (void *dataptr, u16_t len)
u16_t	inet_chksum_pbuf (struct pbuf *p)

Macro Definition Documentation

LWIP_CHKSUM

#define LWIP_CHKSUM   lwip_standard_chksum

Function Documentation

inet_chksum()

u16_t inet_chksum	(	void *	dataptr,
		u16_t	len
	)

inet_chksum_pbuf()

u16_t inet_chksum_pbuf

(

struct pbuf *

p

)

inet_chksum_pseudo()

u16_t inet_chksum_pseudo	(	struct pbuf *	p,
		struct ip_addr *	src,
		struct ip_addr *	dest,
		u8_t	proto,
		u16_t	proto_len
	)

lwip_standard_chksum()

static u16_t lwip_standard_chksum ( void *  dataptr, u16_t  len  )

static

lwip checksum

Parameters

dataptr	points to start of data to be summed at any boundary
len	length of data to be summed

Returns

host order (!) lwip checksum (non-inverted Internet sum)

Note

accumulator size limits summable lenght to 64k

host endianess is irrelevant (p3 RFC1071)