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TOMOYO Linux Cross Reference
Linux/include/uapi/linux/neighbour.h

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  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 

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