checksum.h File Reference

Go to the source code of this file.

Macros
#define	_HAVE_ARCH_IPV6_CSUM   1

Functions
__sum16	ip_fast_csum (const void *iph, unsigned int ihl)
__sum16	csum_tcpudp_magic (__be32 saddr, __be32 daddr, unsigned short len, unsigned short proto, __wsum sum)
__wsum	csum_tcpudp_nofold (__be32 saddr, __be32 daddr, unsigned short len, unsigned short proto, __wsum sum)
__wsum	csum_partial (const void *buff, int len, __wsum sum)
__wsum	csum_partial_copy_from_user (const void __user *src, void *dst, int len, __wsum sum, int *errp)
__wsum	csum_partial_copy_nocheck (const void *src, void *dst, int len, __wsum sum)
__sum16	ip_compute_csum (const void *buff, int len)
__sum16	csum_ipv6_magic (const struct in6_addr *saddr, const struct in6_addr *daddr, __u32 len, unsigned short proto, __wsum csum)

Macro Definition Documentation

#define _HAVE_ARCH_IPV6_CSUM   1

Definition at line 73 of file checksum.h.

Function Documentation

__sum16 csum_ipv6_magic	(	const struct in6_addr *	saddr,
		const struct in6_addr *	daddr,
		__u32	len,
		unsigned short	proto,
		__wsum	csum
	)

Definition at line 129 of file csum-wrappers_64.c.

__wsum csum_partial	(	const void *	buff,
		int	len,
		__wsum	sum
	)

Definition at line 164 of file checksum.c.

__wsum csum_partial_copy_from_user	(	const void __user *	src,
		void *	dst,
		int	len,
		__wsum	sum,
		int *	csum_err
	)

csum_partial_copy_from_user - Copy and checksum from user space. : source address (user space) : destination address : number of bytes to be copied. : initial sum that is added into the result (32bit unfolded) : set to -EFAULT for an bad source address.

Returns an 32bit unfolded checksum of the buffer. src and dst are best aligned to 64bits.

Definition at line 333 of file csum_partial_copy.c.

__wsum csum_partial_copy_nocheck	(	const void *	src,
		void *	dst,
		int	len,
		__wsum	sum
	)

csum_partial_copy_nocheck - Copy and checksum. : source address : destination address : number of bytes to be copied. : initial sum that is added into the result (32bit unfolded)

Returns an 32bit unfolded checksum of the buffer.

Definition at line 374 of file csum_partial_copy.c.

__sum16 csum_tcpudp_magic	(	__be32	saddr,
		__be32	daddr,
		unsigned short	len,
		unsigned short	proto,
		__wsum	sum
	)

Definition at line 44 of file checksum.c.

__wsum csum_tcpudp_nofold	(	__be32	saddr,
		__be32	daddr,
		unsigned short	len,
		unsigned short	proto,
		__wsum	sum
	)

Definition at line 54 of file checksum.c.

__sum16 ip_compute_csum	(	const void *	buff,
		int	len
	)

Definition at line 181 of file checksum.c.

__sum16 ip_fast_csum	(	const void *	iph,
		unsigned int	ihl
	)

Definition at line 147 of file checksum.c.