1 files changed, 189 insertions, 2 deletions

diff --git a/include/linux/rtnetlink.h b/include/linux/rtnetlink.h
index 91ac97c20777..657c05ab8f9e 100644
--- a/include/linux/rtnetlink.h
+++ b/include/linux/rtnetlink.h
@@ -89,6 +89,13 @@ enum {
         RTM_GETANYCAST  = 62,
 #define RTM_GETANYCAST  RTM_GETANYCAST
 
+        RTM_NEWNEIGHTBL = 64,
+#define RTM_NEWNEIGHTBL RTM_NEWNEIGHTBL
+        RTM_GETNEIGHTBL = 66,
+#define RTM_GETNEIGHTBL RTM_GETNEIGHTBL
+        RTM_SETNEIGHTBL,
+#define RTM_SETNEIGHTBL RTM_SETNEIGHTBL
+
         __RTM_MAX,
 #define RTM_MAX         (((__RTM_MAX + 3) & ~3) - 1)
 };
@@ -356,6 +363,8 @@ enum
 struct rta_session
 {
         __u8    proto;
+        __u8    pad1;
+        __u16   pad2;
 
         union {
                 struct {
@@ -493,6 +502,106 @@ struct nda_cacheinfo
         __u32           ndm_refcnt;
 };
 
+
+/*****************************************************************
+ *              Neighbour tables specific messages.
+ *
+ * To retrieve the neighbour tables send RTM_GETNEIGHTBL with the
+ * NLM_F_DUMP flag set. Every neighbour table configuration is
+ * spread over multiple messages to avoid running into message
+ * size limits on systems with many interfaces. The first message
+ * in the sequence transports all not device specific data such as
+ * statistics, configuration, and the default parameter set.
+ * This message is followed by 0..n messages carrying device
+ * specific parameter sets.
+ * Although the ordering should be sufficient, NDTA_NAME can be
+ * used to identify sequences. The initial message can be identified
+ * by checking for NDTA_CONFIG. The device specific messages do
+ * not contain this TLV but have NDTPA_IFINDEX set to the
+ * corresponding interface index.
+ *
+ * To change neighbour table attributes, send RTM_SETNEIGHTBL
+ * with NDTA_NAME set. Changeable attribute include NDTA_THRESH[1-3],
+ * NDTA_GC_INTERVAL, and all TLVs in NDTA_PARMS unless marked
+ * otherwise. Device specific parameter sets can be changed by
+ * setting NDTPA_IFINDEX to the interface index of the corresponding
+ * device.
+ ****/
+
+struct ndt_stats
+{
+        __u64           ndts_allocs;
+        __u64           ndts_destroys;
+        __u64           ndts_hash_grows;
+        __u64           ndts_res_failed;
+        __u64           ndts_lookups;
+        __u64           ndts_hits;
+        __u64           ndts_rcv_probes_mcast;
+        __u64           ndts_rcv_probes_ucast;
+        __u64           ndts_periodic_gc_runs;
+        __u64           ndts_forced_gc_runs;
+};
+
+enum {
+        NDTPA_UNSPEC,
+        NDTPA_IFINDEX,                  /* u32, unchangeable */
+        NDTPA_REFCNT,                   /* u32, read-only */
+        NDTPA_REACHABLE_TIME,           /* u64, read-only, msecs */
+        NDTPA_BASE_REACHABLE_TIME,      /* u64, msecs */
+        NDTPA_RETRANS_TIME,             /* u64, msecs */
+        NDTPA_GC_STALETIME,             /* u64, msecs */
+        NDTPA_DELAY_PROBE_TIME,         /* u64, msecs */
+        NDTPA_QUEUE_LEN,                /* u32 */
+        NDTPA_APP_PROBES,               /* u32 */
+        NDTPA_UCAST_PROBES,             /* u32 */
+        NDTPA_MCAST_PROBES,             /* u32 */
+        NDTPA_ANYCAST_DELAY,            /* u64, msecs */
+        NDTPA_PROXY_DELAY,              /* u64, msecs */
+        NDTPA_PROXY_QLEN,               /* u32 */
+        NDTPA_LOCKTIME,                 /* u64, msecs */
+        __NDTPA_MAX
+};
+#define NDTPA_MAX (__NDTPA_MAX - 1)
+
+struct ndtmsg
+{
+        __u8            ndtm_family;
+        __u8            ndtm_pad1;
+        __u16           ndtm_pad2;
+};
+
+struct ndt_config
+{
+        __u16           ndtc_key_len;
+        __u16           ndtc_entry_size;
+        __u32           ndtc_entries;
+        __u32           ndtc_last_flush;        /* delta to now in msecs */
+        __u32           ndtc_last_rand;         /* delta to now in msecs */
+        __u32           ndtc_hash_rnd;
+        __u32           ndtc_hash_mask;
+        __u32           ndtc_hash_chain_gc;
+        __u32           ndtc_proxy_qlen;
+};
+
+enum {
+        NDTA_UNSPEC,
+        NDTA_NAME,                      /* char *, unchangeable */
+        NDTA_THRESH1,                   /* u32 */
+        NDTA_THRESH2,                   /* u32 */
+        NDTA_THRESH3,                   /* u32 */
+        NDTA_CONFIG,                    /* struct ndt_config, read-only */
+        NDTA_PARMS,                     /* nested TLV NDTPA_* */
+        NDTA_STATS,                     /* struct ndt_stats, read-only */
+        NDTA_GC_INTERVAL,               /* u64, msecs */
+        __NDTA_MAX
+};
+#define NDTA_MAX (__NDTA_MAX - 1)
+
+#define NDTA_RTA(r) ((struct rtattr*)(((char*)(r)) + \
+                     NLMSG_ALIGN(sizeof(struct ndtmsg))))
+#define NDTA_PAYLOAD(n) NLMSG_PAYLOAD(n,sizeof(struct ndtmsg))
+
+
 /****
  *              General form of address family dependent message.
  ****/
@@ -528,10 +637,13 @@ struct ifinfomsg
 struct prefixmsg
 {
         unsigned char   prefix_family;
+        unsigned char   prefix_pad1;
+        unsigned short  prefix_pad2;
         int             prefix_ifindex;
         unsigned char   prefix_type;
         unsigned char   prefix_len;
         unsigned char   prefix_flags;
+        unsigned char   prefix_pad3;
 };
 
 enum 
@@ -785,10 +897,84 @@ extern void __rta_fill(struct sk_buff *skb, int attrtype, int attrlen, const voi
                  goto rtattr_failure; \
         __rta_fill(skb, attrtype, attrlen, data); }) 
 
-#define RTA_PUT_NOHDR(skb, attrlen, data) \
+#define RTA_APPEND(skb, attrlen, data) \
 ({      if (unlikely(skb_tailroom(skb) < (int)(attrlen))) \
                 goto rtattr_failure; \
-        memcpy(skb_put(skb, RTA_ALIGN(attrlen)), data, attrlen); })
+        memcpy(skb_put(skb, attrlen), data, attrlen); })
+
+#define RTA_PUT_NOHDR(skb, attrlen, data) \
+({      RTA_APPEND(skb, RTA_ALIGN(attrlen), data); \
+        memset(skb->tail - (RTA_ALIGN(attrlen) - attrlen), 0, \
+               RTA_ALIGN(attrlen) - attrlen); })
+
+#define RTA_PUT_U8(skb, attrtype, value) \
+({      u8 _tmp = (value); \
+        RTA_PUT(skb, attrtype, sizeof(u8), &_tmp); })
+
+#define RTA_PUT_U16(skb, attrtype, value) \
+({      u16 _tmp = (value); \
+        RTA_PUT(skb, attrtype, sizeof(u16), &_tmp); })
+
+#define RTA_PUT_U32(skb, attrtype, value) \
+({      u32 _tmp = (value); \
+        RTA_PUT(skb, attrtype, sizeof(u32), &_tmp); })
+
+#define RTA_PUT_U64(skb, attrtype, value) \
+({      u64 _tmp = (value); \
+        RTA_PUT(skb, attrtype, sizeof(u64), &_tmp); })
+
+#define RTA_PUT_SECS(skb, attrtype, value) \
+        RTA_PUT_U64(skb, attrtype, (value) / HZ)
+
+#define RTA_PUT_MSECS(skb, attrtype, value) \
+        RTA_PUT_U64(skb, attrtype, jiffies_to_msecs(value))
+
+#define RTA_PUT_STRING(skb, attrtype, value) \
+        RTA_PUT(skb, attrtype, strlen(value) + 1, value)
+
+#define RTA_PUT_FLAG(skb, attrtype) \
+        RTA_PUT(skb, attrtype, 0, NULL);
+
+#define RTA_NEST(skb, type) \
+({      struct rtattr *__start = (struct rtattr *) (skb)->tail; \
+        RTA_PUT(skb, type, 0, NULL); \
+        __start;  })
+
+#define RTA_NEST_END(skb, start) \
+({      (start)->rta_len = ((skb)->tail - (unsigned char *) (start)); \
+        (skb)->len; })
+
+#define RTA_NEST_CANCEL(skb, start) \
+({      if (start) \
+                skb_trim(skb, (unsigned char *) (start) - (skb)->data); \
+        -1; })
+
+#define RTA_GET_U8(rta) \
+({      if (!rta || RTA_PAYLOAD(rta) < sizeof(u8)) \
+                goto rtattr_failure; \
+        *(u8 *) RTA_DATA(rta); })
+
+#define RTA_GET_U16(rta) \
+({      if (!rta || RTA_PAYLOAD(rta) < sizeof(u16)) \
+                goto rtattr_failure; \
+        *(u16 *) RTA_DATA(rta); })
+
+#define RTA_GET_U32(rta) \
+({      if (!rta || RTA_PAYLOAD(rta) < sizeof(u32)) \
+                goto rtattr_failure; \
+        *(u32 *) RTA_DATA(rta); })
+
+#define RTA_GET_U64(rta) \
+({      u64 _tmp; \
+        if (!rta || RTA_PAYLOAD(rta) < sizeof(u64)) \
+                goto rtattr_failure; \
+        memcpy(&_tmp, RTA_DATA(rta), sizeof(_tmp)); \
+        _tmp; })
+
+#define RTA_GET_FLAG(rta) (!!(rta))
+
+#define RTA_GET_SECS(rta) ((unsigned long) RTA_GET_U64(rta) * HZ)
+#define RTA_GET_MSECS(rta) (msecs_to_jiffies((unsigned long) RTA_GET_U64(rta)))
                 
 static inline struct rtattr *
 __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen)
@@ -799,6 +985,7 @@ __rta_reserve(struct sk_buff *skb, int attrtype, int attrlen)
         rta = (struct rtattr*)skb_put(skb, RTA_ALIGN(size));
         rta->rta_type = attrtype;
         rta->rta_len = size;
+        memset(RTA_DATA(rta) + attrlen, 0, RTA_ALIGN(size) - size);
         return rta;
 }