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, 27 NDA_MASTER, 28 NDA_LINK_NETNSID, 29 __NDA_MAX 30 }; 31 32 #define NDA_MAX (__NDA_MAX - 1) 33 34 /* 35 * Neighbor Cache Entry Flags 36 */ 37 38 #define NTF_USE 0x01 39 #define NTF_SELF 0x02 40 #define NTF_MASTER 0x04 41 #define NTF_PROXY 0x08 /* == ATF_PUBL */ 42 #define NTF_EXT_LEARNED 0x10 43 #define NTF_ROUTER 0x80 44 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. 63 NUD_PERMANENT also cannot be deleted by garbage collectors. 64 */ 65 66 struct nda_cacheinfo { 67 __u32 ndm_confirmed; 68 __u32 ndm_used; 69 __u32 ndm_updated; 70 __u32 ndm_refcnt; 71 }; 72 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 98 struct ndt_stats { 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 __u64 ndts_table_fulls; 110 }; 111 112 enum { 113 NDTPA_UNSPEC, 114 NDTPA_IFINDEX, /* u32, unchangeable */ 115 NDTPA_REFCNT, /* u32, read-only */ 116 NDTPA_REACHABLE_TIME, /* u64, read-only, msecs */ 117 NDTPA_BASE_REACHABLE_TIME, /* u64, msecs */ 118 NDTPA_RETRANS_TIME, /* u64, msecs */ 119 NDTPA_GC_STALETIME, /* u64, msecs */ 120 NDTPA_DELAY_PROBE_TIME, /* u64, msecs */ 121 NDTPA_QUEUE_LEN, /* u32 */ 122 NDTPA_APP_PROBES, /* u32 */ 123 NDTPA_UCAST_PROBES, /* u32 */ 124 NDTPA_MCAST_PROBES, /* u32 */ 125 NDTPA_ANYCAST_DELAY, /* u64, msecs */ 126 NDTPA_PROXY_DELAY, /* u64, msecs */ 127 NDTPA_PROXY_QLEN, /* u32 */ 128 NDTPA_LOCKTIME, /* u64, msecs */ 129 NDTPA_QUEUE_LENBYTES, /* u32 */ 130 NDTPA_MCAST_REPROBES, /* u32 */ 131 NDTPA_PAD, 132 __NDTPA_MAX 133 }; 134 #define NDTPA_MAX (__NDTPA_MAX - 1) 135 136 struct ndtmsg { 137 __u8 ndtm_family; 138 __u8 ndtm_pad1; 139 __u16 ndtm_pad2; 140 }; 141 142 struct ndt_config { 143 __u16 ndtc_key_len; 144 __u16 ndtc_entry_size; 145 __u32 ndtc_entries; 146 __u32 ndtc_last_flush; /* delta to now in msecs */ 147 __u32 ndtc_last_rand; /* delta to now in msecs */ 148 __u32 ndtc_hash_rnd; 149 __u32 ndtc_hash_mask; 150 __u32 ndtc_hash_chain_gc; 151 __u32 ndtc_proxy_qlen; 152 }; 153 154 enum { 155 NDTA_UNSPEC, 156 NDTA_NAME, /* char *, unchangeable */ 157 NDTA_THRESH1, /* u32 */ 158 NDTA_THRESH2, /* u32 */ 159 NDTA_THRESH3, /* u32 */ 160 NDTA_CONFIG, /* struct ndt_config, read-only */ 161 NDTA_PARMS, /* nested TLV NDTPA_* */ 162 NDTA_STATS, /* struct ndt_stats, read-only */ 163 NDTA_GC_INTERVAL, /* u64, msecs */ 164 NDTA_PAD, 165 __NDTA_MAX 166 }; 167 #define NDTA_MAX (__NDTA_MAX - 1) 168 169 #endif 170