Thomas Graf | 9067c72 | 2006-08-07 17:57:44 -0700 | [diff] [blame] | 1 | #ifndef __LINUX_NEIGHBOUR_H |
| 2 | #define __LINUX_NEIGHBOUR_H |
| 3 | |
Jaswinder Singh Rajput | ee79a64 | 2009-01-30 21:58:19 +0530 | [diff] [blame] | 4 | #include <linux/types.h> |
Thomas Graf | 9067c72 | 2006-08-07 17:57:44 -0700 | [diff] [blame] | 5 | #include <linux/netlink.h> |
| 6 | |
Eric Dumazet | d94d9fe | 2009-11-04 09:50:58 -0800 | [diff] [blame] | 7 | struct ndmsg { |
Thomas Graf | 9067c72 | 2006-08-07 17:57:44 -0700 | [diff] [blame] | 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 | |
Eric Dumazet | d94d9fe | 2009-11-04 09:50:58 -0800 | [diff] [blame] | 17 | enum { |
Thomas Graf | 9067c72 | 2006-08-07 17:57:44 -0700 | [diff] [blame] | 18 | NDA_UNSPEC, |
| 19 | NDA_DST, |
| 20 | NDA_LLADDR, |
| 21 | NDA_CACHEINFO, |
| 22 | NDA_PROBES, |
Vlad Yasevich | 1690be6 | 2013-02-13 12:00:18 +0000 | [diff] [blame] | 23 | NDA_VLAN, |
David Stevens | 6681712 | 2013-03-15 04:35:51 +0000 | [diff] [blame] | 24 | NDA_PORT, |
| 25 | NDA_VNI, |
| 26 | NDA_IFINDEX, |
Roopa Prabhu | 41c389d | 2014-05-27 22:39:37 -0700 | [diff] [blame] | 27 | NDA_MASTER, |
Nicolas Dichtel | 4967082 | 2015-01-26 14:10:53 +0100 | [diff] [blame] | 28 | NDA_LINK_NETNSID, |
Thomas Graf | 9067c72 | 2006-08-07 17:57:44 -0700 | [diff] [blame] | 29 | __NDA_MAX |
| 30 | }; |
| 31 | |
| 32 | #define NDA_MAX (__NDA_MAX - 1) |
| 33 | |
| 34 | /* |
| 35 | * Neighbor Cache Entry Flags |
| 36 | */ |
| 37 | |
Eric Biederman | 0c5c2d3 | 2009-03-04 00:03:08 -0800 | [diff] [blame] | 38 | #define NTF_USE 0x01 |
John Fastabend | 7716202 | 2012-04-15 06:43:56 +0000 | [diff] [blame] | 39 | #define NTF_SELF 0x02 |
| 40 | #define NTF_MASTER 0x04 |
Jiri Pirko | b7485f6 | 2014-11-28 14:34:13 +0100 | [diff] [blame] | 41 | #define NTF_PROXY 0x08 /* == ATF_PUBL */ |
Scott Feldman | cf6b8e1 | 2014-11-28 14:34:21 +0100 | [diff] [blame] | 42 | #define NTF_EXT_LEARNED 0x10 |
Jiri Pirko | b7485f6 | 2014-11-28 14:34:13 +0100 | [diff] [blame] | 43 | #define NTF_ROUTER 0x80 |
John Fastabend | 7716202 | 2012-04-15 06:43:56 +0000 | [diff] [blame] | 44 | |
Thomas Graf | 9067c72 | 2006-08-07 17:57:44 -0700 | [diff] [blame] | 45 | /* |
| 46 | * Neighbor Cache Entry States. |
| 47 | */ |
| 48 | |
| 49 | #define NUD_INCOMPLETE 0x01 |
| 50 | #define NUD_REACHABLE 0x02 |
| 51 | #define NUD_STALE 0x04 |
| 52 | #define NUD_DELAY 0x08 |
| 53 | #define NUD_PROBE 0x10 |
| 54 | #define NUD_FAILED 0x20 |
| 55 | |
| 56 | /* Dummy states */ |
| 57 | #define NUD_NOARP 0x40 |
| 58 | #define NUD_PERMANENT 0x80 |
| 59 | #define NUD_NONE 0x00 |
| 60 | |
| 61 | /* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change |
| 62 | and make no address resolution or NUD. |
Li Zhong | c04e7da | 2014-01-22 15:29:55 +0800 | [diff] [blame] | 63 | NUD_PERMANENT also cannot be deleted by garbage collectors. |
Thomas Graf | 9067c72 | 2006-08-07 17:57:44 -0700 | [diff] [blame] | 64 | */ |
| 65 | |
Eric Dumazet | d94d9fe | 2009-11-04 09:50:58 -0800 | [diff] [blame] | 66 | struct nda_cacheinfo { |
Thomas Graf | 9067c72 | 2006-08-07 17:57:44 -0700 | [diff] [blame] | 67 | __u32 ndm_confirmed; |
| 68 | __u32 ndm_used; |
| 69 | __u32 ndm_updated; |
| 70 | __u32 ndm_refcnt; |
| 71 | }; |
| 72 | |
Thomas Graf | b63bbc5 | 2006-08-07 18:00:57 -0700 | [diff] [blame] | 73 | /***************************************************************** |
| 74 | * Neighbour tables specific messages. |
| 75 | * |
| 76 | * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the |
| 77 | * NLM_F_DUMP flag set. Every neighbour table configuration is |
| 78 | * spread over multiple messages to avoid running into message |
| 79 | * size limits on systems with many interfaces. The first message |
| 80 | * in the sequence transports all not device specific data such as |
| 81 | * statistics, configuration, and the default parameter set. |
| 82 | * This message is followed by 0..n messages carrying device |
| 83 | * specific parameter sets. |
| 84 | * Although the ordering should be sufficient, NDTA_NAME can be |
| 85 | * used to identify sequences. The initial message can be identified |
| 86 | * by checking for NDTA_CONFIG. The device specific messages do |
| 87 | * not contain this TLV but have NDTPA_IFINDEX set to the |
| 88 | * corresponding interface index. |
| 89 | * |
| 90 | * To change neighbour table attributes, send RTM_SETNEIGHTBL |
| 91 | * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3], |
| 92 | * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked |
| 93 | * otherwise. Device specific parameter sets can be changed by |
| 94 | * setting NDTPA_IFINDEX to the interface index of the corresponding |
| 95 | * device. |
| 96 | ****/ |
| 97 | |
Eric Dumazet | d94d9fe | 2009-11-04 09:50:58 -0800 | [diff] [blame] | 98 | struct ndt_stats { |
Thomas Graf | b63bbc5 | 2006-08-07 18:00:57 -0700 | [diff] [blame] | 99 | __u64 ndts_allocs; |
| 100 | __u64 ndts_destroys; |
| 101 | __u64 ndts_hash_grows; |
| 102 | __u64 ndts_res_failed; |
| 103 | __u64 ndts_lookups; |
| 104 | __u64 ndts_hits; |
| 105 | __u64 ndts_rcv_probes_mcast; |
| 106 | __u64 ndts_rcv_probes_ucast; |
| 107 | __u64 ndts_periodic_gc_runs; |
| 108 | __u64 ndts_forced_gc_runs; |
| 109 | }; |
| 110 | |
| 111 | enum { |
| 112 | NDTPA_UNSPEC, |
| 113 | NDTPA_IFINDEX, /* u32, unchangeable */ |
| 114 | NDTPA_REFCNT, /* u32, read-only */ |
| 115 | NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */ |
| 116 | NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */ |
| 117 | NDTPA_RETRANS_TIME, /* u64, msecs */ |
| 118 | NDTPA_GC_STALETIME, /* u64, msecs */ |
| 119 | NDTPA_DELAY_PROBE_TIME, /* u64, msecs */ |
| 120 | NDTPA_QUEUE_LEN, /* u32 */ |
| 121 | NDTPA_APP_PROBES, /* u32 */ |
| 122 | NDTPA_UCAST_PROBES, /* u32 */ |
| 123 | NDTPA_MCAST_PROBES, /* u32 */ |
| 124 | NDTPA_ANYCAST_DELAY, /* u64, msecs */ |
| 125 | NDTPA_PROXY_DELAY, /* u64, msecs */ |
| 126 | NDTPA_PROXY_QLEN, /* u32 */ |
| 127 | NDTPA_LOCKTIME, /* u64, msecs */ |
Eric Dumazet | 8b5c171 | 2011-11-09 12:07:14 +0000 | [diff] [blame] | 128 | NDTPA_QUEUE_LENBYTES, /* u32 */ |
YOSHIFUJI Hideaki/吉藤英明 | 8da8646 | 2015-03-19 22:41:46 +0900 | [diff] [blame^] | 129 | NDTPA_MCAST_REPROBES, /* u32 */ |
Thomas Graf | b63bbc5 | 2006-08-07 18:00:57 -0700 | [diff] [blame] | 130 | __NDTPA_MAX |
| 131 | }; |
| 132 | #define NDTPA_MAX (__NDTPA_MAX - 1) |
| 133 | |
Eric Dumazet | d94d9fe | 2009-11-04 09:50:58 -0800 | [diff] [blame] | 134 | struct ndtmsg { |
Thomas Graf | b63bbc5 | 2006-08-07 18:00:57 -0700 | [diff] [blame] | 135 | __u8 ndtm_family; |
| 136 | __u8 ndtm_pad1; |
| 137 | __u16 ndtm_pad2; |
| 138 | }; |
| 139 | |
Eric Dumazet | d94d9fe | 2009-11-04 09:50:58 -0800 | [diff] [blame] | 140 | struct ndt_config { |
Thomas Graf | b63bbc5 | 2006-08-07 18:00:57 -0700 | [diff] [blame] | 141 | __u16 ndtc_key_len; |
| 142 | __u16 ndtc_entry_size; |
| 143 | __u32 ndtc_entries; |
| 144 | __u32 ndtc_last_flush; /* delta to now in msecs */ |
| 145 | __u32 ndtc_last_rand; /* delta to now in msecs */ |
| 146 | __u32 ndtc_hash_rnd; |
| 147 | __u32 ndtc_hash_mask; |
| 148 | __u32 ndtc_hash_chain_gc; |
| 149 | __u32 ndtc_proxy_qlen; |
| 150 | }; |
| 151 | |
| 152 | enum { |
| 153 | NDTA_UNSPEC, |
| 154 | NDTA_NAME, /* char *, unchangeable */ |
| 155 | NDTA_THRESH1, /* u32 */ |
| 156 | NDTA_THRESH2, /* u32 */ |
| 157 | NDTA_THRESH3, /* u32 */ |
| 158 | NDTA_CONFIG, /* struct ndt_config, read-only */ |
| 159 | NDTA_PARMS, /* nested TLV NDTPA_* */ |
| 160 | NDTA_STATS, /* struct ndt_stats, read-only */ |
| 161 | NDTA_GC_INTERVAL, /* u64, msecs */ |
| 162 | __NDTA_MAX |
| 163 | }; |
| 164 | #define NDTA_MAX (__NDTA_MAX - 1) |
| 165 | |
Thomas Graf | 9067c72 | 2006-08-07 17:57:44 -0700 | [diff] [blame] | 166 | #endif |