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 160