1 #ifndef __LINUX_NEIGHBOUR_H
2 #define __LINUX_NEIGHBOUR_H
4 #include <linux/types.h>
5 #include <linux/netlink.h>
31 #define NDA_MAX (__NDA_MAX - 1)
34 * Neighbor Cache Entry Flags
38 #define NTF_PROXY 0x08 /* == ATF_PUBL */
39 #define NTF_ROUTER 0x80
42 #define NTF_MASTER 0x04
45 * Neighbor Cache Entry States.
48 #define NUD_INCOMPLETE 0x01
49 #define NUD_REACHABLE 0x02
50 #define NUD_STALE 0x04
51 #define NUD_DELAY 0x08
52 #define NUD_PROBE 0x10
53 #define NUD_FAILED 0x20
56 #define NUD_NOARP 0x40
57 #define NUD_PERMANENT 0x80
60 /* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change
61 and make no address resolution or NUD.
62 NUD_PERMANENT also cannot be deleted by garbage collectors.
65 struct nda_cacheinfo {
72 /*****************************************************************
73 * Neighbour tables specific messages.
75 * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the
76 * NLM_F_DUMP flag set. Every neighbour table configuration is
77 * spread over multiple messages to avoid running into message
78 * size limits on systems with many interfaces. The first message
79 * in the sequence transports all not device specific data such as
80 * statistics, configuration, and the default parameter set.
81 * This message is followed by 0..n messages carrying device
82 * specific parameter sets.
83 * Although the ordering should be sufficient, NDTA_NAME can be
84 * used to identify sequences. The initial message can be identified
85 * by checking for NDTA_CONFIG. The device specific messages do
86 * not contain this TLV but have NDTPA_IFINDEX set to the
87 * corresponding interface index.
89 * To change neighbour table attributes, send RTM_SETNEIGHTBL
90 * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3],
91 * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked
92 * otherwise. Device specific parameter sets can be changed by
93 * setting NDTPA_IFINDEX to the interface index of the corresponding
100 __u64 ndts_hash_grows;
101 __u64 ndts_res_failed;
104 __u64 ndts_rcv_probes_mcast;
105 __u64 ndts_rcv_probes_ucast;
106 __u64 ndts_periodic_gc_runs;
107 __u64 ndts_forced_gc_runs;
112 NDTPA_IFINDEX, /* u32, unchangeable */
113 NDTPA_REFCNT, /* u32, read-only */
114 NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */
115 NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */
116 NDTPA_RETRANS_TIME, /* u64, msecs */
117 NDTPA_GC_STALETIME, /* u64, msecs */
118 NDTPA_DELAY_PROBE_TIME, /* u64, msecs */
119 NDTPA_QUEUE_LEN, /* u32 */
120 NDTPA_APP_PROBES, /* u32 */
121 NDTPA_UCAST_PROBES, /* u32 */
122 NDTPA_MCAST_PROBES, /* u32 */
123 NDTPA_ANYCAST_DELAY, /* u64, msecs */
124 NDTPA_PROXY_DELAY, /* u64, msecs */
125 NDTPA_PROXY_QLEN, /* u32 */
126 NDTPA_LOCKTIME, /* u64, msecs */
127 NDTPA_QUEUE_LENBYTES, /* u32 */
130 #define NDTPA_MAX (__NDTPA_MAX - 1)
140 __u16 ndtc_entry_size;
142 __u32 ndtc_last_flush; /* delta to now in msecs */
143 __u32 ndtc_last_rand; /* delta to now in msecs */
145 __u32 ndtc_hash_mask;
146 __u32 ndtc_hash_chain_gc;
147 __u32 ndtc_proxy_qlen;
152 NDTA_NAME, /* char *, unchangeable */
153 NDTA_THRESH1, /* u32 */
154 NDTA_THRESH2, /* u32 */
155 NDTA_THRESH3, /* u32 */
156 NDTA_CONFIG, /* struct ndt_config, read-only */
157 NDTA_PARMS, /* nested TLV NDTPA_* */
158 NDTA_STATS, /* struct ndt_stats, read-only */
159 NDTA_GC_INTERVAL, /* u64, msecs */
162 #define NDTA_MAX (__NDTA_MAX - 1)