fsnotify: unified filesystem notification backend
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / linux / neighbour.h
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1#ifndef __LINUX_NEIGHBOUR_H
2#define __LINUX_NEIGHBOUR_H
3
ee79a641 4#include <linux/types.h>
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5#include <linux/netlink.h>
6
7struct ndmsg
8{
9 __u8 ndm_family;
10 __u8 ndm_pad1;
11 __u16 ndm_pad2;
12 __s32 ndm_ifindex;
13 __u16 ndm_state;
14 __u8 ndm_flags;
15 __u8 ndm_type;
16};
17
18enum
19{
20 NDA_UNSPEC,
21 NDA_DST,
22 NDA_LLADDR,
23 NDA_CACHEINFO,
24 NDA_PROBES,
25 __NDA_MAX
26};
27
28#define NDA_MAX (__NDA_MAX - 1)
29
30/*
31 * Neighbor Cache Entry Flags
32 */
33
0c5c2d30 34#define NTF_USE 0x01
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35#define NTF_PROXY 0x08 /* == ATF_PUBL */
36#define NTF_ROUTER 0x80
37
38/*
39 * Neighbor Cache Entry States.
40 */
41
42#define NUD_INCOMPLETE 0x01
43#define NUD_REACHABLE 0x02
44#define NUD_STALE 0x04
45#define NUD_DELAY 0x08
46#define NUD_PROBE 0x10
47#define NUD_FAILED 0x20
48
49/* Dummy states */
50#define NUD_NOARP 0x40
51#define NUD_PERMANENT 0x80
52#define NUD_NONE 0x00
53
54/* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change
55 and make no address resolution or NUD.
56 NUD_PERMANENT is also cannot be deleted by garbage collectors.
57 */
58
59struct nda_cacheinfo
60{
61 __u32 ndm_confirmed;
62 __u32 ndm_used;
63 __u32 ndm_updated;
64 __u32 ndm_refcnt;
65};
66
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67/*****************************************************************
68 * Neighbour tables specific messages.
69 *
70 * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the
71 * NLM_F_DUMP flag set. Every neighbour table configuration is
72 * spread over multiple messages to avoid running into message
73 * size limits on systems with many interfaces. The first message
74 * in the sequence transports all not device specific data such as
75 * statistics, configuration, and the default parameter set.
76 * This message is followed by 0..n messages carrying device
77 * specific parameter sets.
78 * Although the ordering should be sufficient, NDTA_NAME can be
79 * used to identify sequences. The initial message can be identified
80 * by checking for NDTA_CONFIG. The device specific messages do
81 * not contain this TLV but have NDTPA_IFINDEX set to the
82 * corresponding interface index.
83 *
84 * To change neighbour table attributes, send RTM_SETNEIGHTBL
85 * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3],
86 * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked
87 * otherwise. Device specific parameter sets can be changed by
88 * setting NDTPA_IFINDEX to the interface index of the corresponding
89 * device.
90 ****/
91
92struct ndt_stats
93{
94 __u64 ndts_allocs;
95 __u64 ndts_destroys;
96 __u64 ndts_hash_grows;
97 __u64 ndts_res_failed;
98 __u64 ndts_lookups;
99 __u64 ndts_hits;
100 __u64 ndts_rcv_probes_mcast;
101 __u64 ndts_rcv_probes_ucast;
102 __u64 ndts_periodic_gc_runs;
103 __u64 ndts_forced_gc_runs;
104};
105
106enum {
107 NDTPA_UNSPEC,
108 NDTPA_IFINDEX, /* u32, unchangeable */
109 NDTPA_REFCNT, /* u32, read-only */
110 NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */
111 NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */
112 NDTPA_RETRANS_TIME, /* u64, msecs */
113 NDTPA_GC_STALETIME, /* u64, msecs */
114 NDTPA_DELAY_PROBE_TIME, /* u64, msecs */
115 NDTPA_QUEUE_LEN, /* u32 */
116 NDTPA_APP_PROBES, /* u32 */
117 NDTPA_UCAST_PROBES, /* u32 */
118 NDTPA_MCAST_PROBES, /* u32 */
119 NDTPA_ANYCAST_DELAY, /* u64, msecs */
120 NDTPA_PROXY_DELAY, /* u64, msecs */
121 NDTPA_PROXY_QLEN, /* u32 */
122 NDTPA_LOCKTIME, /* u64, msecs */
123 __NDTPA_MAX
124};
125#define NDTPA_MAX (__NDTPA_MAX - 1)
126
127struct ndtmsg
128{
129 __u8 ndtm_family;
130 __u8 ndtm_pad1;
131 __u16 ndtm_pad2;
132};
133
134struct ndt_config
135{
136 __u16 ndtc_key_len;
137 __u16 ndtc_entry_size;
138 __u32 ndtc_entries;
139 __u32 ndtc_last_flush; /* delta to now in msecs */
140 __u32 ndtc_last_rand; /* delta to now in msecs */
141 __u32 ndtc_hash_rnd;
142 __u32 ndtc_hash_mask;
143 __u32 ndtc_hash_chain_gc;
144 __u32 ndtc_proxy_qlen;
145};
146
147enum {
148 NDTA_UNSPEC,
149 NDTA_NAME, /* char *, unchangeable */
150 NDTA_THRESH1, /* u32 */
151 NDTA_THRESH2, /* u32 */
152 NDTA_THRESH3, /* u32 */
153 NDTA_CONFIG, /* struct ndt_config, read-only */
154 NDTA_PARMS, /* nested TLV NDTPA_* */
155 NDTA_STATS, /* struct ndt_stats, read-only */
156 NDTA_GC_INTERVAL, /* u64, msecs */
157 __NDTA_MAX
158};
159#define NDTA_MAX (__NDTA_MAX - 1)
160
9067c722 161#endif