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1 | #ifndef __LINUX_NEIGHBOUR_H |
2 | #define __LINUX_NEIGHBOUR_H |
3 | |
4 | #include <linux/types.h> |
5 | #include <linux/netlink.h> |
6 | |
7 | struct ndmsg { |
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 | |
17 | enum { |
18 | NDA_UNSPEC, |
19 | NDA_DST, |
20 | NDA_LLADDR, |
21 | NDA_CACHEINFO, |
22 | NDA_PROBES, |
23 | __NDA_MAX |
24 | }; |
25 | |
26 | #define NDA_MAX (__NDA_MAX - 1) |
27 | |
28 | /* |
29 | * Neighbor Cache Entry Flags |
30 | */ |
31 | |
32 | #define NTF_USE 0x01 |
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 | |
57 | struct nda_cacheinfo { |
58 | __u32 ndm_confirmed; |
59 | __u32 ndm_used; |
60 | __u32 ndm_updated; |
61 | __u32 ndm_refcnt; |
62 | }; |
63 | |
64 | /***************************************************************** |
65 | * Neighbour tables specific messages. |
66 | * |
67 | * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the |
68 | * NLM_F_DUMP flag set. Every neighbour table configuration is |
69 | * spread over multiple messages to avoid running into message |
70 | * size limits on systems with many interfaces. The first message |
71 | * in the sequence transports all not device specific data such as |
72 | * statistics, configuration, and the default parameter set. |
73 | * This message is followed by 0..n messages carrying device |
74 | * specific parameter sets. |
75 | * Although the ordering should be sufficient, NDTA_NAME can be |
76 | * used to identify sequences. The initial message can be identified |
77 | * by checking for NDTA_CONFIG. The device specific messages do |
78 | * not contain this TLV but have NDTPA_IFINDEX set to the |
79 | * corresponding interface index. |
80 | * |
81 | * To change neighbour table attributes, send RTM_SETNEIGHTBL |
82 | * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3], |
83 | * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked |
84 | * otherwise. Device specific parameter sets can be changed by |
85 | * setting NDTPA_IFINDEX to the interface index of the corresponding |
86 | * device. |
87 | ****/ |
88 | |
89 | struct ndt_stats { |
90 | __u64 ndts_allocs; |
91 | __u64 ndts_destroys; |
92 | __u64 ndts_hash_grows; |
93 | __u64 ndts_res_failed; |
94 | __u64 ndts_lookups; |
95 | __u64 ndts_hits; |
96 | __u64 ndts_rcv_probes_mcast; |
97 | __u64 ndts_rcv_probes_ucast; |
98 | __u64 ndts_periodic_gc_runs; |
99 | __u64 ndts_forced_gc_runs; |
100 | }; |
101 | |
102 | enum { |
103 | NDTPA_UNSPEC, |
104 | NDTPA_IFINDEX, /* u32, unchangeable */ |
105 | NDTPA_REFCNT, /* u32, read-only */ |
106 | NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */ |
107 | NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */ |
108 | NDTPA_RETRANS_TIME, /* u64, msecs */ |
109 | NDTPA_GC_STALETIME, /* u64, msecs */ |
110 | NDTPA_DELAY_PROBE_TIME, /* u64, msecs */ |
111 | NDTPA_QUEUE_LEN, /* u32 */ |
112 | NDTPA_APP_PROBES, /* u32 */ |
113 | NDTPA_UCAST_PROBES, /* u32 */ |
114 | NDTPA_MCAST_PROBES, /* u32 */ |
115 | NDTPA_ANYCAST_DELAY, /* u64, msecs */ |
116 | NDTPA_PROXY_DELAY, /* u64, msecs */ |
117 | NDTPA_PROXY_QLEN, /* u32 */ |
118 | NDTPA_LOCKTIME, /* u64, msecs */ |
119 | __NDTPA_MAX |
120 | }; |
121 | #define NDTPA_MAX (__NDTPA_MAX - 1) |
122 | |
123 | struct ndtmsg { |
124 | __u8 ndtm_family; |
125 | __u8 ndtm_pad1; |
126 | __u16 ndtm_pad2; |
127 | }; |
128 | |
129 | struct ndt_config { |
130 | __u16 ndtc_key_len; |
131 | __u16 ndtc_entry_size; |
132 | __u32 ndtc_entries; |
133 | __u32 ndtc_last_flush; /* delta to now in msecs */ |
134 | __u32 ndtc_last_rand; /* delta to now in msecs */ |
135 | __u32 ndtc_hash_rnd; |
136 | __u32 ndtc_hash_mask; |
137 | __u32 ndtc_hash_chain_gc; |
138 | __u32 ndtc_proxy_qlen; |
139 | }; |
140 | |
141 | enum { |
142 | NDTA_UNSPEC, |
143 | NDTA_NAME, /* char *, unchangeable */ |
144 | NDTA_THRESH1, /* u32 */ |
145 | NDTA_THRESH2, /* u32 */ |
146 | NDTA_THRESH3, /* u32 */ |
147 | NDTA_CONFIG, /* struct ndt_config, read-only */ |
148 | NDTA_PARMS, /* nested TLV NDTPA_* */ |
149 | NDTA_STATS, /* struct ndt_stats, read-only */ |
150 | NDTA_GC_INTERVAL, /* u64, msecs */ |
151 | __NDTA_MAX |
152 | }; |
153 | #define NDTA_MAX (__NDTA_MAX - 1) |
154 | |
155 | #endif |
156 |
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