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