Context buffer definitions. More...

Detailed Description

Context buffer definitions.

Author: Martine Lenders mlend.nosp@m.ers@.nosp@m.inf.f.nosp@m.u-be.nosp@m.rlin..nosp@m.de

Definition in file ctx.h.

#include <inttypes.h>
#include <stdbool.h>
#include "net/ipv6/addr.h"
#include "timex.h"
#include "modules.h"

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Data Structures
struct	gnrc_sixlowpan_ctx_t
	Entry in the 6LoWPAN context buffer. More...

Macros
#define	GNRC_SIXLOWPAN_CTX_SIZE (16)
	maximum number of entries in context buffer

Functions
gnrc_sixlowpan_ctx_t *	gnrc_sixlowpan_ctx_lookup_addr (const ipv6_addr_t *addr)
	Gets a context matching the given IPv6 address best with its prefix.

gnrc_sixlowpan_ctx_t *	gnrc_sixlowpan_ctx_lookup_id (uint8_t id)
	Gets context by ID.

gnrc_sixlowpan_ctx_t *	gnrc_sixlowpan_ctx_update (uint8_t id, const ipv6_addr_t *prefix, uint8_t prefix_len, uint16_t ltime, bool comp)
	Updates (or adds if currently not registered) a context.

static void	gnrc_sixlowpan_ctx_remove (uint8_t id)
	Removes context.

static bool	gnrc_sixlowpan_ctx_match (const gnrc_sixlowpan_ctx_t ctx, const ipv6_addr_t prefix, uint8_t prefix_len)
	Check if a prefix matches a compression context.

static bool	gnrc_sixlowpan_ctx_update_6ctx (const ipv6_addr_t *prefix, uint8_t prefix_len, uint32_t valid)
	Create or update a compression context.

void	gnrc_sixlowpan_ctx_reset (void)
	Resets the whole context buffer.

Context flags.
Flags to set in gnrc_sixlowpan_ctx_t::flags_id.
#define	GNRC_SIXLOWPAN_CTX_FLAGS_CID_MASK (0x0f)
	mask for the Context ID.

#define	GNRC_SIXLOWPAN_CTX_FLAGS_COMP (0x10)
	Use context for compression.

Data Structures