Thread-safe ARP / ND throttling

[vpp.git] / src / vnet / ip / ip4.h

diff --git a/src/vnet/ip/ip4.h b/src/vnet/ip/ip4.h
index f7e5fe3..e3cbe27 100644 (file)
--- a/src/vnet/ip/ip4.h
+++ b/src/vnet/ip/ip4.h
@@ -154,8 +154,16 @@ typedef struct ip4_main_t
 
   /** The memory heap for the mtries */
   void *mtrie_mheap;
+
+  /** ARP throttling */
+  uword **arp_throttle_bitmaps;
+  u32 *arp_throttle_seeds;
+  f64 *arp_throttle_last_seed_change_time;
+
 } ip4_main_t;
 
+#define ARP_THROTTLE_BITS      (512)
+
 /** Global ip4 main structure. */
 extern ip4_main_t ip4_main;
 
@@ -187,18 +195,6 @@ ip4_destination_matches_interface (ip4_main_t * im,
   return ip4_destination_matches_route (im, key, a, ia->address_length);
 }
 
-/* As above but allows for unaligned destinations (e.g. works right from IP header of packet). */
-always_inline uword
-ip4_unaligned_destination_matches_route (ip4_main_t * im,
-                                        ip4_address_t * key,
-                                        ip4_address_t * dest,
-                                        uword dest_length)
-{
-  return 0 ==
-    ((clib_mem_unaligned (&key->data_u32, u32) ^ dest->
-      data_u32) & im->fib_masks[dest_length]);
-}
-
 always_inline int
 ip4_src_address_for_packet (ip_lookup_main_t * lm,
                            u32 sw_if_index, ip4_address_t * src)
@@ -257,13 +253,15 @@ clib_error_t *ip4_add_del_interface_address (vlib_main_t * vm,
                                             ip4_address_t * address,
                                             u32 address_length, u32 is_del);
 
+void ip4_directed_broadcast (u32 sw_if_index, u8 enable);
+
 void ip4_sw_interface_enable_disable (u32 sw_if_index, u32 is_enable);
 
 int ip4_address_compare (ip4_address_t * a1, ip4_address_t * a2);
 
 /* Send an ARP request to see if given destination is reachable on given interface. */
 clib_error_t *ip4_probe_neighbor (vlib_main_t * vm, ip4_address_t * dst,
-                                 u32 sw_if_index);
+                                 u32 sw_if_index, u8 refresh);
 
 clib_error_t *ip4_set_arp_limit (u32 arp_limit);