Message type and helper function definitions for 6LoWPAN-ND. More...

Detailed Description

Message type and helper function definitions for 6LoWPAN-ND.

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

Definition in file nd.h.

#include <stdint.h>
#include "byteorder.h"
#include "net/eui64.h"
#include "net/ipv6/addr.h"

Include dependency graph for nd.h:

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Data Structures
struct	sixlowpan_nd_da_t
	Duplicate address request and confirmation message format. More...

struct	sixlowpan_nd_opt_ar_t
	Address registration option format. More...

struct	sixlowpan_nd_opt_6ctx_t
	6LoWPAN context option format More...

struct	sixlowpan_nd_opt_abr_t
	Authoritative border router option format. More...

Functions
static bool	sixlowpan_nd_opt_6ctx_is_comp (const sixlowpan_nd_opt_6ctx_t *ctx_opt)
	Checks if a 6LoWPAN context in an 6LoWPAN context option is valid for compression.

static uint8_t	sixlowpan_nd_opt_6ctx_get_cid (const sixlowpan_nd_opt_6ctx_t *ctx_opt)
	Gets a CID (context identifier) from a 6LoWPAN context option.

static void	sixlowpan_nd_opt_6ctx_set_cid (sixlowpan_nd_opt_6ctx_t *ctx_opt, uint8_t cid)
	Sets a CID (context identifier) for a 6LoWPAN context option.

static uint32_t	sixlowpan_nd_opt_abr_get_version (const sixlowpan_nd_opt_abr_t *abr_opt)
	Gets the version in correct order from an Authoritative Border Router option.

static void	sixlowpan_nd_opt_abr_set_version (sixlowpan_nd_opt_abr_t *abr_opt, uint32_t version)
	Sets the version of an Authoritative Border Router option.

static uint16_t	gnrc_sixlowpan_nd_opt_get_ltime (const sixlowpan_nd_opt_abr_t *abr_opt)
	Get the lifetime of an Authoritative Border Router from an ABR option.

Lengths for fixed length options
Note Options don't use bytes as their length unit, but 8 bytes.
#define	SIXLOWPAN_ND_OPT_6CTX_LEN_MIN (2U)

#define	SIXLOWPAN_ND_OPT_6CTX_LEN_MAX (3U)

#define	SIXLOWPAN_ND_OPT_AR_LEN (2U)

#define	SIXLOWPAN_ND_OPT_ABR_LEN (3U)

Authoritative border router option constants
See also RFC 6775, section 4.3
#define	SIXLOWPAN_ND_OPT_ABR_LTIME_DEFAULT (10000U)
	Valid lifetime (in minutes) assumed if sixlowpan_nd_opt_abr_t::ltime is 0.

Status values for address registration option and DARs
See also RFC 6775, section 4.1
#define	SIXLOWPAN_ND_STATUS_SUCCESS (0)
	success

#define	SIXLOWPAN_ND_STATUS_DUP (1)
	duplicate address

#define	SIXLOWPAN_ND_STATUS_NC_FULL (2)
	neighbor cache full

Flags for 6LoWPAN context option
#define	SIXLOWPAN_ND_OPT_6CTX_FLAGS_MASK (0x1f)

#define	SIXLOWPAN_ND_OPT_6CTX_FLAGS_C (0x10)
	valid for compression

#define	SIXLOWPAN_ND_OPT_6CTX_FLAGS_CID_MASK (0x0f)
	mask for CID

6LoWPAN border router constants
See also RFC 6775, section 9
#define	SIXLOWPAN_ND_MIN_CTX_CHANGE_SEC_DELAY (300U)
	MIN_CONTEXT_CHANGE_DELAY (in sec)

6LoWPAN router constants
See also RFC 6775, section 9
#define	SIXLOWPAN_ND_MAX_RA_NUMOF (3U)
	MAX_RTR_ADVERTISEMENTS.

#define	SIXLOWPAN_ND_MIN_MS_DELAY_BETWEEN_RAS (10000U)
	MIN_DELAY_BETWEEN_RAS (in ms)

#define	SIXLOWPAN_ND_MAX_RA_MS_DELAY (2000U)
	MAX_RA_DELAY_TIME (in ms)

#define	SIXLOWPAN_ND_TENTATIVE_NCE_SEC_LTIME (20U)
	TENTATIVE_NCE_LIFETIME (in sec)

Host constants
See also RFC 6775, section 9
#define	SIXLOWPAN_ND_REG_TRANSMIT_NUMOF (3U)
	Number of address registration retries.

#define	SIXLOWPAN_ND_RS_MSEC_INTERVAL (10000U)
	RTR_SOLICITATION_INTERVAL (in msec)

#define	SIXLOWPAN_ND_MAX_RS_NUMOF (3U)
	MAX_RTR_SOLICITATIONS.

#define	SIXLOWPAN_ND_MAX_RS_SEC_INTERVAL (60U)
	MAX_RTR_SOLICITATIONS_INTERVAL (in seconds)

Data Structures