1 #ifndef __LINUX_NEIGHBOUR_H
2 #define __LINUX_NEIGHBOUR_H
4 #include <linux/types.h>
5 #include <linux/netlink.h>
33 #define NDA_MAX (__NDA_MAX - 1)
36 * Neighbor Cache Entry Flags
41 #define NTF_MASTER 0x04
42 #define NTF_PROXY 0x08 /* == ATF_PUBL */
43 #define NTF_EXT_LEARNED 0x10
44 #define NTF_OFFLOADED 0x20
45 #define NTF_ROUTER 0x80
48 * Neighbor Cache Entry States.
51 #define NUD_INCOMPLETE 0x01
52 #define NUD_REACHABLE 0x02
53 #define NUD_STALE 0x04
54 #define NUD_DELAY 0x08
55 #define NUD_PROBE 0x10
56 #define NUD_FAILED 0x20
59 #define NUD_NOARP 0x40
60 #define NUD_PERMANENT 0x80
63 /* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change
64 and make no address resolution or NUD.
65 NUD_PERMANENT also cannot be deleted by garbage collectors.
68 struct nda_cacheinfo {
75 /*****************************************************************
76 * Neighbour tables specific messages.
78 * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the
79 * NLM_F_DUMP flag set. Every neighbour table configuration is
80 * spread over multiple messages to avoid running into message
81 * size limits on systems with many interfaces. The first message
82 * in the sequence transports all not device specific data such as
83 * statistics, configuration, and the default parameter set.
84 * This message is followed by 0..n messages carrying device
85 * specific parameter sets.
86 * Although the ordering should be sufficient, NDTA_NAME can be
87 * used to identify sequences. The initial message can be identified
88 * by checking for NDTA_CONFIG. The device specific messages do
89 * not contain this TLV but have NDTPA_IFINDEX set to the
90 * corresponding interface index.
92 * To change neighbour table attributes, send RTM_SETNEIGHTBL
93 * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3],
94 * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked
95 * otherwise. Device specific parameter sets can be changed by
96 * setting NDTPA_IFINDEX to the interface index of the corresponding
103 __u64 ndts_hash_grows;
104 __u64 ndts_res_failed;
107 __u64 ndts_rcv_probes_mcast;
108 __u64 ndts_rcv_probes_ucast;
109 __u64 ndts_periodic_gc_runs;
110 __u64 ndts_forced_gc_runs;
111 __u64 ndts_table_fulls;
116 NDTPA_IFINDEX, /* u32, unchangeable */
117 NDTPA_REFCNT, /* u32, read-only */
118 NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */
119 NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */
120 NDTPA_RETRANS_TIME, /* u64, msecs */
121 NDTPA_GC_STALETIME, /* u64, msecs */
122 NDTPA_DELAY_PROBE_TIME, /* u64, msecs */
123 NDTPA_QUEUE_LEN, /* u32 */
124 NDTPA_APP_PROBES, /* u32 */
125 NDTPA_UCAST_PROBES, /* u32 */
126 NDTPA_MCAST_PROBES, /* u32 */
127 NDTPA_ANYCAST_DELAY, /* u64, msecs */
128 NDTPA_PROXY_DELAY, /* u64, msecs */
129 NDTPA_PROXY_QLEN, /* u32 */
130 NDTPA_LOCKTIME, /* u64, msecs */
131 NDTPA_QUEUE_LENBYTES, /* u32 */
132 NDTPA_MCAST_REPROBES, /* u32 */
136 #define NDTPA_MAX (__NDTPA_MAX - 1)
146 __u16 ndtc_entry_size;
148 __u32 ndtc_last_flush; /* delta to now in msecs */
149 __u32 ndtc_last_rand; /* delta to now in msecs */
151 __u32 ndtc_hash_mask;
152 __u32 ndtc_hash_chain_gc;
153 __u32 ndtc_proxy_qlen;
158 NDTA_NAME, /* char *, unchangeable */
159 NDTA_THRESH1, /* u32 */
160 NDTA_THRESH2, /* u32 */
161 NDTA_THRESH3, /* u32 */
162 NDTA_CONFIG, /* struct ndt_config, read-only */
163 NDTA_PARMS, /* nested TLV NDTPA_* */
164 NDTA_STATS, /* struct ndt_stats, read-only */
165 NDTA_GC_INTERVAL, /* u64, msecs */
169 #define NDTA_MAX (__NDTA_MAX - 1)