Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 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_VLAN, |
| 24 | NDA_PORT, |
| 25 | NDA_VNI, |
| 26 | NDA_IFINDEX, |
Christopher Ferris | 3147524 | 2014-09-02 17:43:51 -0700 | [diff] [blame] | 27 | NDA_MASTER, |
Christopher Ferris | 12e1f28 | 2016-02-04 12:35:07 -0800 | [diff] [blame] | 28 | NDA_LINK_NETNSID, |
Christopher Ferris | 0543f74 | 2017-07-26 13:09:46 -0700 | [diff] [blame] | 29 | NDA_SRC_VNI, |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 30 | __NDA_MAX |
| 31 | }; |
| 32 | |
| 33 | #define NDA_MAX (__NDA_MAX - 1) |
| 34 | |
| 35 | /* |
| 36 | * Neighbor Cache Entry Flags |
| 37 | */ |
| 38 | |
| 39 | #define NTF_USE 0x01 |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 40 | #define NTF_SELF 0x02 |
| 41 | #define NTF_MASTER 0x04 |
Christopher Ferris | 12e1f28 | 2016-02-04 12:35:07 -0800 | [diff] [blame] | 42 | #define NTF_PROXY 0x08 /* == ATF_PUBL */ |
| 43 | #define NTF_EXT_LEARNED 0x10 |
| 44 | #define NTF_ROUTER 0x80 |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 45 | |
| 46 | /* |
| 47 | * Neighbor Cache Entry States. |
| 48 | */ |
| 49 | |
| 50 | #define NUD_INCOMPLETE 0x01 |
| 51 | #define NUD_REACHABLE 0x02 |
| 52 | #define NUD_STALE 0x04 |
| 53 | #define NUD_DELAY 0x08 |
| 54 | #define NUD_PROBE 0x10 |
| 55 | #define NUD_FAILED 0x20 |
| 56 | |
| 57 | /* Dummy states */ |
| 58 | #define NUD_NOARP 0x40 |
| 59 | #define NUD_PERMANENT 0x80 |
| 60 | #define NUD_NONE 0x00 |
| 61 | |
| 62 | /* NUD_NOARP & NUD_PERMANENT are pseudostates, they never change |
| 63 | and make no address resolution or NUD. |
Christopher Ferris | e084501 | 2014-07-09 14:58:51 -0700 | [diff] [blame] | 64 | NUD_PERMANENT also cannot be deleted by garbage collectors. |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 65 | */ |
| 66 | |
| 67 | struct nda_cacheinfo { |
| 68 | __u32 ndm_confirmed; |
| 69 | __u32 ndm_used; |
| 70 | __u32 ndm_updated; |
| 71 | __u32 ndm_refcnt; |
| 72 | }; |
| 73 | |
| 74 | /***************************************************************** |
| 75 | * Neighbour tables specific messages. |
| 76 | * |
| 77 | * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the |
| 78 | * NLM_F_DUMP flag set. Every neighbour table configuration is |
| 79 | * spread over multiple messages to avoid running into message |
| 80 | * size limits on systems with many interfaces. The first message |
| 81 | * in the sequence transports all not device specific data such as |
| 82 | * statistics, configuration, and the default parameter set. |
| 83 | * This message is followed by 0..n messages carrying device |
| 84 | * specific parameter sets. |
| 85 | * Although the ordering should be sufficient, NDTA_NAME can be |
| 86 | * used to identify sequences. The initial message can be identified |
| 87 | * by checking for NDTA_CONFIG. The device specific messages do |
| 88 | * not contain this TLV but have NDTPA_IFINDEX set to the |
| 89 | * corresponding interface index. |
| 90 | * |
| 91 | * To change neighbour table attributes, send RTM_SETNEIGHTBL |
| 92 | * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3], |
| 93 | * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked |
| 94 | * otherwise. Device specific parameter sets can be changed by |
| 95 | * setting NDTPA_IFINDEX to the interface index of the corresponding |
| 96 | * device. |
| 97 | ****/ |
| 98 | |
| 99 | struct ndt_stats { |
| 100 | __u64 ndts_allocs; |
| 101 | __u64 ndts_destroys; |
| 102 | __u64 ndts_hash_grows; |
| 103 | __u64 ndts_res_failed; |
| 104 | __u64 ndts_lookups; |
| 105 | __u64 ndts_hits; |
| 106 | __u64 ndts_rcv_probes_mcast; |
| 107 | __u64 ndts_rcv_probes_ucast; |
| 108 | __u64 ndts_periodic_gc_runs; |
| 109 | __u64 ndts_forced_gc_runs; |
Christopher Ferris | 12e1f28 | 2016-02-04 12:35:07 -0800 | [diff] [blame] | 110 | __u64 ndts_table_fulls; |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 111 | }; |
| 112 | |
| 113 | enum { |
| 114 | NDTPA_UNSPEC, |
| 115 | NDTPA_IFINDEX, /* u32, unchangeable */ |
| 116 | NDTPA_REFCNT, /* u32, read-only */ |
| 117 | NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */ |
| 118 | NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */ |
| 119 | NDTPA_RETRANS_TIME, /* u64, msecs */ |
| 120 | NDTPA_GC_STALETIME, /* u64, msecs */ |
| 121 | NDTPA_DELAY_PROBE_TIME, /* u64, msecs */ |
| 122 | NDTPA_QUEUE_LEN, /* u32 */ |
| 123 | NDTPA_APP_PROBES, /* u32 */ |
| 124 | NDTPA_UCAST_PROBES, /* u32 */ |
| 125 | NDTPA_MCAST_PROBES, /* u32 */ |
| 126 | NDTPA_ANYCAST_DELAY, /* u64, msecs */ |
| 127 | NDTPA_PROXY_DELAY, /* u64, msecs */ |
| 128 | NDTPA_PROXY_QLEN, /* u32 */ |
| 129 | NDTPA_LOCKTIME, /* u64, msecs */ |
| 130 | NDTPA_QUEUE_LENBYTES, /* u32 */ |
Christopher Ferris | 12e1f28 | 2016-02-04 12:35:07 -0800 | [diff] [blame] | 131 | NDTPA_MCAST_REPROBES, /* u32 */ |
Christopher Ferris | ccfaccd | 2016-08-24 12:11:31 -0700 | [diff] [blame] | 132 | NDTPA_PAD, |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 133 | __NDTPA_MAX |
| 134 | }; |
| 135 | #define NDTPA_MAX (__NDTPA_MAX - 1) |
| 136 | |
| 137 | struct ndtmsg { |
| 138 | __u8 ndtm_family; |
| 139 | __u8 ndtm_pad1; |
| 140 | __u16 ndtm_pad2; |
| 141 | }; |
| 142 | |
| 143 | struct ndt_config { |
| 144 | __u16 ndtc_key_len; |
| 145 | __u16 ndtc_entry_size; |
| 146 | __u32 ndtc_entries; |
| 147 | __u32 ndtc_last_flush; /* delta to now in msecs */ |
| 148 | __u32 ndtc_last_rand; /* delta to now in msecs */ |
| 149 | __u32 ndtc_hash_rnd; |
| 150 | __u32 ndtc_hash_mask; |
| 151 | __u32 ndtc_hash_chain_gc; |
| 152 | __u32 ndtc_proxy_qlen; |
| 153 | }; |
| 154 | |
| 155 | enum { |
| 156 | NDTA_UNSPEC, |
| 157 | NDTA_NAME, /* char *, unchangeable */ |
| 158 | NDTA_THRESH1, /* u32 */ |
| 159 | NDTA_THRESH2, /* u32 */ |
| 160 | NDTA_THRESH3, /* u32 */ |
| 161 | NDTA_CONFIG, /* struct ndt_config, read-only */ |
| 162 | NDTA_PARMS, /* nested TLV NDTPA_* */ |
| 163 | NDTA_STATS, /* struct ndt_stats, read-only */ |
| 164 | NDTA_GC_INTERVAL, /* u64, msecs */ |
Christopher Ferris | ccfaccd | 2016-08-24 12:11:31 -0700 | [diff] [blame] | 165 | NDTA_PAD, |
Ben Cheng | 224b54f | 2013-10-15 18:26:18 -0700 | [diff] [blame] | 166 | __NDTA_MAX |
| 167 | }; |
| 168 | #define NDTA_MAX (__NDTA_MAX - 1) |
| 169 | |
| 170 | #endif |