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6f52b16c | 1 | /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ |
9067c722 TG |
2 | #ifndef __LINUX_NEIGHBOUR_H |
3 | #define __LINUX_NEIGHBOUR_H | |
4 | ||
ee79a641 | 5 | #include <linux/types.h> |
9067c722 TG |
6 | #include <linux/netlink.h> |
7 | ||
d94d9fee | 8 | struct ndmsg { |
9067c722 TG |
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 | ||
d94d9fee | 18 | enum { |
9067c722 TG |
19 | NDA_UNSPEC, |
20 | NDA_DST, | |
21 | NDA_LLADDR, | |
22 | NDA_CACHEINFO, | |
23 | NDA_PROBES, | |
1690be63 | 24 | NDA_VLAN, |
6681712d DS |
25 | NDA_PORT, |
26 | NDA_VNI, | |
27 | NDA_IFINDEX, | |
41c389d7 | 28 | NDA_MASTER, |
4967082b | 29 | NDA_LINK_NETNSID, |
3ad7a4b1 | 30 | NDA_SRC_VNI, |
9067c722 TG |
31 | __NDA_MAX |
32 | }; | |
33 | ||
34 | #define NDA_MAX (__NDA_MAX - 1) | |
35 | ||
36 | /* | |
37 | * Neighbor Cache Entry Flags | |
38 | */ | |
39 | ||
0c5c2d30 | 40 | #define NTF_USE 0x01 |
77162022 JF |
41 | #define NTF_SELF 0x02 |
42 | #define NTF_MASTER 0x04 | |
b7485f6b | 43 | #define NTF_PROXY 0x08 /* == ATF_PUBL */ |
cf6b8e1e | 44 | #define NTF_EXT_LEARNED 0x10 |
9fe8bcec | 45 | #define NTF_OFFLOADED 0x20 |
b7485f6b | 46 | #define NTF_ROUTER 0x80 |
77162022 | 47 | |
9067c722 TG |
48 | /* |
49 | * Neighbor Cache Entry States. | |
50 | */ | |
51 | ||
52 | #define NUD_INCOMPLETE 0x01 | |
53 | #define NUD_REACHABLE 0x02 | |
54 | #define NUD_STALE 0x04 | |
55 | #define NUD_DELAY 0x08 | |
56 | #define NUD_PROBE 0x10 | |
57 | #define NUD_FAILED 0x20 | |
58 | ||
59 | /* Dummy states */ | |
60 | #define NUD_NOARP 0x40 | |
61 | #define NUD_PERMANENT 0x80 | |
62 | #define NUD_NONE 0x00 | |
63 | ||
64 | /* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change | |
65 | and make no address resolution or NUD. | |
c04e7da0 | 66 | NUD_PERMANENT also cannot be deleted by garbage collectors. |
9067c722 TG |
67 | */ |
68 | ||
d94d9fee | 69 | struct nda_cacheinfo { |
9067c722 TG |
70 | __u32 ndm_confirmed; |
71 | __u32 ndm_used; | |
72 | __u32 ndm_updated; | |
73 | __u32 ndm_refcnt; | |
74 | }; | |
75 | ||
b63bbc50 TG |
76 | /***************************************************************** |
77 | * Neighbour tables specific messages. | |
78 | * | |
79 | * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the | |
80 | * NLM_F_DUMP flag set. Every neighbour table configuration is | |
81 | * spread over multiple messages to avoid running into message | |
82 | * size limits on systems with many interfaces. The first message | |
83 | * in the sequence transports all not device specific data such as | |
84 | * statistics, configuration, and the default parameter set. | |
85 | * This message is followed by 0..n messages carrying device | |
86 | * specific parameter sets. | |
87 | * Although the ordering should be sufficient, NDTA_NAME can be | |
88 | * used to identify sequences. The initial message can be identified | |
89 | * by checking for NDTA_CONFIG. The device specific messages do | |
90 | * not contain this TLV but have NDTPA_IFINDEX set to the | |
91 | * corresponding interface index. | |
92 | * | |
93 | * To change neighbour table attributes, send RTM_SETNEIGHTBL | |
94 | * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3], | |
95 | * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked | |
96 | * otherwise. Device specific parameter sets can be changed by | |
97 | * setting NDTPA_IFINDEX to the interface index of the corresponding | |
98 | * device. | |
99 | ****/ | |
100 | ||
d94d9fee | 101 | struct ndt_stats { |
b63bbc50 TG |
102 | __u64 ndts_allocs; |
103 | __u64 ndts_destroys; | |
104 | __u64 ndts_hash_grows; | |
105 | __u64 ndts_res_failed; | |
106 | __u64 ndts_lookups; | |
107 | __u64 ndts_hits; | |
108 | __u64 ndts_rcv_probes_mcast; | |
109 | __u64 ndts_rcv_probes_ucast; | |
110 | __u64 ndts_periodic_gc_runs; | |
111 | __u64 ndts_forced_gc_runs; | |
fb811395 | 112 | __u64 ndts_table_fulls; |
b63bbc50 TG |
113 | }; |
114 | ||
115 | enum { | |
116 | NDTPA_UNSPEC, | |
117 | NDTPA_IFINDEX, /* u32, unchangeable */ | |
118 | NDTPA_REFCNT, /* u32, read-only */ | |
119 | NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */ | |
120 | NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */ | |
121 | NDTPA_RETRANS_TIME, /* u64, msecs */ | |
122 | NDTPA_GC_STALETIME, /* u64, msecs */ | |
123 | NDTPA_DELAY_PROBE_TIME, /* u64, msecs */ | |
124 | NDTPA_QUEUE_LEN, /* u32 */ | |
125 | NDTPA_APP_PROBES, /* u32 */ | |
126 | NDTPA_UCAST_PROBES, /* u32 */ | |
127 | NDTPA_MCAST_PROBES, /* u32 */ | |
128 | NDTPA_ANYCAST_DELAY, /* u64, msecs */ | |
129 | NDTPA_PROXY_DELAY, /* u64, msecs */ | |
130 | NDTPA_PROXY_QLEN, /* u32 */ | |
131 | NDTPA_LOCKTIME, /* u64, msecs */ | |
8b5c171b | 132 | NDTPA_QUEUE_LENBYTES, /* u32 */ |
8da86466 | 133 | NDTPA_MCAST_REPROBES, /* u32 */ |
2175d87c | 134 | NDTPA_PAD, |
b63bbc50 TG |
135 | __NDTPA_MAX |
136 | }; | |
137 | #define NDTPA_MAX (__NDTPA_MAX - 1) | |
138 | ||
d94d9fee | 139 | struct ndtmsg { |
b63bbc50 TG |
140 | __u8 ndtm_family; |
141 | __u8 ndtm_pad1; | |
142 | __u16 ndtm_pad2; | |
143 | }; | |
144 | ||
d94d9fee | 145 | struct ndt_config { |
b63bbc50 TG |
146 | __u16 ndtc_key_len; |
147 | __u16 ndtc_entry_size; | |
148 | __u32 ndtc_entries; | |
149 | __u32 ndtc_last_flush; /* delta to now in msecs */ | |
150 | __u32 ndtc_last_rand; /* delta to now in msecs */ | |
151 | __u32 ndtc_hash_rnd; | |
152 | __u32 ndtc_hash_mask; | |
153 | __u32 ndtc_hash_chain_gc; | |
154 | __u32 ndtc_proxy_qlen; | |
155 | }; | |
156 | ||
157 | enum { | |
158 | NDTA_UNSPEC, | |
159 | NDTA_NAME, /* char *, unchangeable */ | |
160 | NDTA_THRESH1, /* u32 */ | |
161 | NDTA_THRESH2, /* u32 */ | |
162 | NDTA_THRESH3, /* u32 */ | |
163 | NDTA_CONFIG, /* struct ndt_config, read-only */ | |
164 | NDTA_PARMS, /* nested TLV NDTPA_* */ | |
165 | NDTA_STATS, /* struct ndt_stats, read-only */ | |
166 | NDTA_GC_INTERVAL, /* u64, msecs */ | |
2175d87c | 167 | NDTA_PAD, |
b63bbc50 TG |
168 | __NDTA_MAX |
169 | }; | |
170 | #define NDTA_MAX (__NDTA_MAX - 1) | |
171 | ||
9067c722 | 172 | #endif |