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nc.h
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1/*
2 * Copyright (C) 2017 Freie Universität Berlin
3 *
4 * This file is subject to the terms and conditions of the GNU Lesser
5 * General Public License v2.1. See the file LICENSE in the top level
6 * directory for more details.
7 */
8
20#ifndef NET_GNRC_IPV6_NIB_NC_H
21#define NET_GNRC_IPV6_NIB_NC_H
22
23#include <stdbool.h>
24#include <stdint.h>
25
26#include "net/eui64.h"
27#include "net/gnrc/netif/hdr.h"
29#include "net/ipv6/addr.h"
30
31#ifdef __cplusplus
32extern "C" {
33#endif
34
47#define GNRC_IPV6_NIB_NC_INFO_NUD_STATE_MASK (0x0007)
48
52#define GNRC_IPV6_NIB_NC_INFO_NUD_STATE_UNMANAGED (0x0000)
53
57#define GNRC_IPV6_NIB_NC_INFO_NUD_STATE_UNREACHABLE (0x0001)
58
62#define GNRC_IPV6_NIB_NC_INFO_NUD_STATE_INCOMPLETE (0x0002)
63
67#define GNRC_IPV6_NIB_NC_INFO_NUD_STATE_STALE (0x0003)
68
72#define GNRC_IPV6_NIB_NC_INFO_NUD_STATE_DELAY (0x0004)
73
77#define GNRC_IPV6_NIB_NC_INFO_NUD_STATE_PROBE (0x0005)
78
82#define GNRC_IPV6_NIB_NC_INFO_NUD_STATE_REACHABLE (0x0006)
83
94#define GNRC_IPV6_NIB_NC_INFO_IS_ROUTER (0x0008)
95
99#define GNRC_IPV6_NIB_NC_INFO_IFACE_MASK (0x01f0)
100
104#define GNRC_IPV6_NIB_NC_INFO_IFACE_POS (4)
105
111#define GNRC_IPV6_NIB_NC_INFO_AR_STATE_MASK (0x0600)
112
116#define GNRC_IPV6_NIB_NC_INFO_AR_STATE_POS (9)
117
121#define GNRC_IPV6_NIB_NC_INFO_AR_STATE_GC (0x0000)
122
126#define GNRC_IPV6_NIB_NC_INFO_AR_STATE_TENTATIVE (0x0200)
127
131#define GNRC_IPV6_NIB_NC_INFO_AR_STATE_REGISTERED (0x0400)
132
136#define GNRC_IPV6_NIB_NC_INFO_AR_STATE_MANUAL (0x0600)
155
163static inline unsigned gnrc_ipv6_nib_nc_get_nud_state(const gnrc_ipv6_nib_nc_t *entry)
164{
166}
167
176static inline bool gnrc_ipv6_nib_nc_is_router(const gnrc_ipv6_nib_nc_t *entry)
177{
178 return (entry->info & GNRC_IPV6_NIB_NC_INFO_IS_ROUTER);
179}
180
189static inline unsigned gnrc_ipv6_nib_nc_get_iface(const gnrc_ipv6_nib_nc_t *entry)
190{
191 return (entry->info & GNRC_IPV6_NIB_NC_INFO_IFACE_MASK) >>
193}
194
202static inline unsigned gnrc_ipv6_nib_nc_get_ar_state(const gnrc_ipv6_nib_nc_t *entry)
203{
205}
206
233int gnrc_ipv6_nib_nc_set(const ipv6_addr_t *ipv6, unsigned iface,
234 const uint8_t *l2addr, size_t l2addr_len);
235
246void gnrc_ipv6_nib_nc_del(const ipv6_addr_t *ipv6, unsigned iface);
247
266
300bool gnrc_ipv6_nib_nc_iter(unsigned iface, void **state,
301 gnrc_ipv6_nib_nc_t *nce);
302
311
312#ifdef __cplusplus
313}
314#endif
315
316#endif /* NET_GNRC_IPV6_NIB_NC_H */
EUI-64 data type definition.
#define CONFIG_GNRC_IPV6_NIB_L2ADDR_MAX_LEN
Maximum link-layer address length (aligned)
Definition conf.h:261
#define GNRC_IPV6_NIB_NC_INFO_NUD_STATE_MASK
Mask for neighbor unreachability detection (NUD) states.
Definition nc.h:47
void gnrc_ipv6_nib_nc_mark_reachable(const ipv6_addr_t *ipv6)
Mark neighbor with address ipv6 as reachable.
void gnrc_ipv6_nib_nc_print(gnrc_ipv6_nib_nc_t *nce)
Prints a neighbor cache entry.
void gnrc_ipv6_nib_nc_del(const ipv6_addr_t *ipv6, unsigned iface)
Deletes neighbor with address ipv6 from NIB.
static unsigned gnrc_ipv6_nib_nc_get_nud_state(const gnrc_ipv6_nib_nc_t *entry)
Gets neighbor unreachability state from entry.
Definition nc.h:163
static bool gnrc_ipv6_nib_nc_is_router(const gnrc_ipv6_nib_nc_t *entry)
Gets router flag of a neighbor.
Definition nc.h:176
#define GNRC_IPV6_NIB_NC_INFO_IFACE_POS
Shift position of interface identifier.
Definition nc.h:104
bool gnrc_ipv6_nib_nc_iter(unsigned iface, void **state, gnrc_ipv6_nib_nc_t *nce)
Iterates over all neighbor cache entries in the NIB.
#define GNRC_IPV6_NIB_NC_INFO_AR_STATE_MASK
Mask for 6LoWPAN address registration (6Lo-AR) states.
Definition nc.h:111
static unsigned gnrc_ipv6_nib_nc_get_ar_state(const gnrc_ipv6_nib_nc_t *entry)
Gets address registration state of an entry.
Definition nc.h:202
int gnrc_ipv6_nib_nc_set(const ipv6_addr_t *ipv6, unsigned iface, const uint8_t *l2addr, size_t l2addr_len)
Adds an unmanaged neighbor entry to NIB.
#define GNRC_IPV6_NIB_NC_INFO_IFACE_MASK
Mask for interface identifier.
Definition nc.h:99
static unsigned gnrc_ipv6_nib_nc_get_iface(const gnrc_ipv6_nib_nc_t *entry)
Gets interface from entry.
Definition nc.h:189
#define GNRC_IPV6_NIB_NC_INFO_IS_ROUTER
gnrc_ipv6_nib_t::next_hop is router
Definition nc.h:94
Definitions for IPv6 addresses.
Configuration macro definitions for neighbor information base.
Generic network interface header.
Neighbor cache entry view on NIB.
Definition nc.h:142
uint8_t l2addr_len
Length of gnrc_ipv6_nib_nc_t::l2addr in bytes.
Definition nc.h:153
ipv6_addr_t ipv6
Neighbor's IPv6 address.
Definition nc.h:143
uint16_t info
Neighbor information as defined in info values.
Definition nc.h:152
Data type to represent an IPv6 address.
Definition addr.h:72