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1 | #ifndef __LINUX_NEIGHBOUR_H | |
2 | #define __LINUX_NEIGHBOUR_H | |
3 | ||
4 | #include <linux/netlink.h> | |
5 | ||
6 | struct 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 | ||
17 | enum | |
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 | ||
57 | struct nda_cacheinfo | |
58 | { | |
59 | __u32 ndm_confirmed; | |
60 | __u32 ndm_used; | |
61 | __u32 ndm_updated; | |
62 | __u32 ndm_refcnt; | |
63 | }; | |
64 | ||
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 | ||
90 | struct 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 | ||
104 | enum { | |
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 | ||
125 | struct ndtmsg | |
126 | { | |
127 | __u8 ndtm_family; | |
128 | __u8 ndtm_pad1; | |
129 | __u16 ndtm_pad2; | |
130 | }; | |
131 | ||
132 | struct 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 | ||
145 | enum { | |
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 | ||
159 | #endif |