Common 6LowPAN routines for IPv6. More...

Functions
static err_t	lowpan6_decompress_hdr (u8_t lowpan6_buffer, size_t lowpan6_bufsize, u8_t decomp_buffer, size_t decomp_bufsize, u16_t hdr_size_comp, u16_t hdr_size_decomp, u16_t datagram_size, u16_t compressed_size, ip6_addr_t lowpan6_contexts, struct lowpan6_link_addr src, struct lowpan6_link_addr *dest)
	Decompress IPv6 and UDP headers compressed according to RFC 6282.

Detailed Description

Common 6LowPAN routines for IPv6.

Uses ND tables for link-layer addressing. Fragments packets to 6LowPAN units.

This implementation aims to conform to IEEE 802.15.4(-2015), RFC 4944 and RFC 6282.

Function Documentation

static err_t lowpan6_decompress_hdr	(	u8_t *	lowpan6_buffer,
		size_t	lowpan6_bufsize,
		u8_t *	decomp_buffer,
		size_t	decomp_bufsize,
		u16_t *	hdr_size_comp,
		u16_t *	hdr_size_decomp,
		u16_t	datagram_size,
		u16_t	compressed_size,
		ip6_addr_t *	lowpan6_contexts,
		struct lowpan6_link_addr *	src,
		struct lowpan6_link_addr *	dest
	)		`[static]`

Decompress IPv6 and UDP headers compressed according to RFC 6282.

Parameters:

lowpan6_buffer	compressed headers, first byte is the dispatch byte
lowpan6_bufsize	size of lowpan6_buffer (may include data after headers)
decomp_buffer	buffer where the decompressed headers are stored
decomp_bufsize	size of decomp_buffer
hdr_size_comp	returns the size of the compressed headers (skip to get to data)
hdr_size_decomp	returns the size of the decompressed headers (IPv6 + UDP)
datagram_size	datagram size from fragments or 0 if unfragmented
compressed_size	compressed datagram size (for unfragmented rx)
lowpan6_contexts	context addresses
src	source address of the outer layer, used for address compression
dest	destination address of the outer layer, used for address compression

Definition at line 391 of file lwip_lowpan6_common.c.