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gerrit-public.fairphone.software / kernel / msm-4.9 / cf14a4d06742d59ecb2d837a3f53bb24d1ff9acb / . / include / linux / neighbour.h
blob: bd3bbf668cdb009292195056d2e8be292dd6e97e [file] [log] [blame]
Thomas Graf9067c722006-08-07 17:57:44 -0700[diff] [blame]1#ifndef __LINUX_NEIGHBOUR_H
2#define __LINUX_NEIGHBOUR_H
3
4#include <linux/netlink.h>
5
6struct ndmsg
7{
8 __u8 ndm_family;
9 __u8 ndm_pad1;
10 __u16 ndm_pad2;
11 __s32 ndm_ifindex;
12 __u16 ndm_state;
13 __u8 ndm_flags;
14 __u8 ndm_type;
15};
16
17enum
18{
19 NDA_UNSPEC,
20 NDA_DST,
21 NDA_LLADDR,
22 NDA_CACHEINFO,
23 NDA_PROBES,
24 __NDA_MAX
25};
26
27#define NDA_MAX (__NDA_MAX - 1)
28
29/*
30 * Neighbor Cache Entry Flags
31 */
32
33#define NTF_PROXY 0x08 /* == ATF_PUBL */
34#define NTF_ROUTER 0x80
35
36/*
37 * Neighbor Cache Entry States.
38 */
39
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
46
47/* Dummy states */
48#define NUD_NOARP 0x40
49#define NUD_PERMANENT 0x80
50#define NUD_NONE 0x00
51
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.
55 */
56
57struct nda_cacheinfo
58{
59 __u32 ndm_confirmed;
60 __u32 ndm_used;
61 __u32 ndm_updated;
62 __u32 ndm_refcnt;
63};
64
Thomas Grafb63bbc52006-08-07 18:00:57 -0700[diff] [blame]65/*****************************************************************
66 * Neighbour tables specific messages.
67 *
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.
81 *
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
87 * device.
88 ****/
89
90struct ndt_stats
91{
92 __u64 ndts_allocs;
93 __u64 ndts_destroys;
94 __u64 ndts_hash_grows;
95 __u64 ndts_res_failed;
96 __u64 ndts_lookups;
97 __u64 ndts_hits;
98 __u64 ndts_rcv_probes_mcast;
99 __u64 ndts_rcv_probes_ucast;
100 __u64 ndts_periodic_gc_runs;
101 __u64 ndts_forced_gc_runs;
102};
103
104enum {
105 NDTPA_UNSPEC,
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 */
121 __NDTPA_MAX
122};
123#define NDTPA_MAX (__NDTPA_MAX - 1)
124
125struct ndtmsg
126{
127 __u8 ndtm_family;
128 __u8 ndtm_pad1;
129 __u16 ndtm_pad2;
130};
131
132struct ndt_config
133{
134 __u16 ndtc_key_len;
135 __u16 ndtc_entry_size;
136 __u32 ndtc_entries;
137 __u32 ndtc_last_flush; /* delta to now in msecs */
138 __u32 ndtc_last_rand; /* delta to now in msecs */
139 __u32 ndtc_hash_rnd;
140 __u32 ndtc_hash_mask;
141 __u32 ndtc_hash_chain_gc;
142 __u32 ndtc_proxy_qlen;
143};
144
145enum {
146 NDTA_UNSPEC,
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 */
155 __NDTA_MAX
156};
157#define NDTA_MAX (__NDTA_MAX - 1)
158
Thomas Graf9067c722006-08-07 17:57:44 -0700[diff] [blame]159#endif