1 #ifndef __LINUX_NEIGHBOUR_H
2 #define __LINUX_NEIGHBOUR_H
4 #include <linux/netlink.h>
27 #define NDA_MAX (__NDA_MAX - 1)
30 * Neighbor Cache Entry Flags
33 #define NTF_PROXY 0x08 /* == ATF_PUBL */
34 #define NTF_ROUTER 0x80
37 * Neighbor Cache Entry States.
40 #define NUD_INCOMPLETE 0x01
41 #define NUD_REACHABLE 0x02
42 #define NUD_STALE 0x04
43 #define NUD_DELAY 0x08
44 #define NUD_PROBE 0x10
45 #define NUD_FAILED 0x20
48 #define NUD_NOARP 0x40
49 #define NUD_PERMANENT 0x80
52 /* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change
53 and make no address resolution or NUD.
54 NUD_PERMANENT is also cannot be deleted by garbage collectors.
65 /*****************************************************************
66 * Neighbour tables specific messages.
68 * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the
69 * NLM_F_DUMP flag set. Every neighbour table configuration is
70 * spread over multiple messages to avoid running into message
71 * size limits on systems with many interfaces. The first message
72 * in the sequence transports all not device specific data such as
73 * statistics, configuration, and the default parameter set.
74 * This message is followed by 0..n messages carrying device
75 * specific parameter sets.
76 * Although the ordering should be sufficient, NDTA_NAME can be
77 * used to identify sequences. The initial message can be identified
78 * by checking for NDTA_CONFIG. The device specific messages do
79 * not contain this TLV but have NDTPA_IFINDEX set to the
80 * corresponding interface index.
82 * To change neighbour table attributes, send RTM_SETNEIGHTBL
83 * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3],
84 * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked
85 * otherwise. Device specific parameter sets can be changed by
86 * setting NDTPA_IFINDEX to the interface index of the corresponding
94 __u64 ndts_hash_grows;
95 __u64 ndts_res_failed;
98 __u64 ndts_rcv_probes_mcast;
99 __u64 ndts_rcv_probes_ucast;
100 __u64 ndts_periodic_gc_runs;
101 __u64 ndts_forced_gc_runs;
106 NDTPA_IFINDEX, /* u32, unchangeable */
107 NDTPA_REFCNT, /* u32, read-only */
108 NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */
109 NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */
110 NDTPA_RETRANS_TIME, /* u64, msecs */
111 NDTPA_GC_STALETIME, /* u64, msecs */
112 NDTPA_DELAY_PROBE_TIME, /* u64, msecs */
113 NDTPA_QUEUE_LEN, /* u32 */
114 NDTPA_APP_PROBES, /* u32 */
115 NDTPA_UCAST_PROBES, /* u32 */
116 NDTPA_MCAST_PROBES, /* u32 */
117 NDTPA_ANYCAST_DELAY, /* u64, msecs */
118 NDTPA_PROXY_DELAY, /* u64, msecs */
119 NDTPA_PROXY_QLEN, /* u32 */
120 NDTPA_LOCKTIME, /* u64, msecs */
123 #define NDTPA_MAX (__NDTPA_MAX - 1)
135 __u16 ndtc_entry_size;
137 __u32 ndtc_last_flush; /* delta to now in msecs */
138 __u32 ndtc_last_rand; /* delta to now in msecs */
140 __u32 ndtc_hash_mask;
141 __u32 ndtc_hash_chain_gc;
142 __u32 ndtc_proxy_qlen;
147 NDTA_NAME, /* char *, unchangeable */
148 NDTA_THRESH1, /* u32 */
149 NDTA_THRESH2, /* u32 */
150 NDTA_THRESH3, /* u32 */
151 NDTA_CONFIG, /* struct ndt_config, read-only */
152 NDTA_PARMS, /* nested TLV NDTPA_* */
153 NDTA_STATS, /* struct ndt_stats, read-only */
154 NDTA_GC_INTERVAL, /* u64, msecs */
157 #define NDTA_MAX (__NDTA_MAX - 1)