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