Use throttle_t for ND throttling

[vpp.git] / src / vnet / ip / ip6.h

diff --git a/src/vnet/ip/ip6.h b/src/vnet/ip/ip6.h
index d623c95..e807886 100644 (file)
--- a/src/vnet/ip/ip6.h
+++ b/src/vnet/ip/ip6.h
@@ -40,7 +40,6 @@
 #ifndef included_ip_ip6_h
 #define included_ip_ip6_h
 
-#include <vlib/mc.h>
 #include <vlib/buffer.h>
 #include <vnet/ethernet/packet.h>
 #include <vnet/ip/ip6_packet.h>
@@ -50,6 +49,7 @@
 #include <vppinfra/bihash_24_8.h>
 #include <vppinfra/bihash_template.h>
 #include <vnet/util/radix.h>
+#include <vnet/util/throttle.h>
 
 /*
  * Default size of the ip6 fib hash table
@@ -66,6 +66,9 @@ typedef struct
 
 typedef struct
 {
+  /* required for pool_get_aligned. */
+  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
+
   /* Table ID (hash key) for this FIB. */
   u32 table_id;
 
@@ -103,6 +106,16 @@ typedef struct
   uword function_opaque;
 } ip6_add_del_interface_address_callback_t;
 
+typedef void (ip6_table_bind_function_t)
+  (struct ip6_main_t * im,
+   uword opaque, u32 sw_if_index, u32 new_fib_index, u32 old_fib_index);
+
+typedef struct
+{
+  ip6_table_bind_function_t *function;
+  uword function_opaque;
+} ip6_table_bind_callback_t;
+
 /**
  * Enumeration of the FIB table instance types
  */
@@ -183,6 +196,9 @@ typedef struct ip6_main_t
     ip6_add_del_interface_address_callback_t
     * add_del_interface_address_callbacks;
 
+  /** Functions to call when interface to table biding changes. */
+  ip6_table_bind_callback_t *table_bind_callbacks;
+
   /* Template used to generate IP6 neighbor solicitation packets. */
   vlib_packet_template_t discover_neighbor_packet_template;
 
@@ -203,8 +219,13 @@ typedef struct ip6_main_t
 
   /* HBH processing enabled? */
   u8 hbh_enabled;
+
+  /** ND throttling */
+  throttle_t nd_throttle;
 } ip6_main_t;
 
+#define ND_THROTTLE_BITS 512
+
 /* Global ip6 main structure. */
 extern ip6_main_t ip6_main;
 
@@ -217,6 +238,11 @@ extern vlib_node_registration_t ip6_discover_neighbor_node;
 extern vlib_node_registration_t ip6_glean_node;
 extern vlib_node_registration_t ip6_midchain_node;
 
+extern void ip6_forward_next_trace (vlib_main_t * vm,
+                                   vlib_node_runtime_t * node,
+                                   vlib_frame_t * frame,
+                                   vlib_rx_or_tx_t which_adj_index);
+
 always_inline uword
 ip6_destination_matches_route (const ip6_main_t * im,
                               const ip6_address_t * key,
@@ -258,25 +284,36 @@ ip6_unaligned_destination_matches_route (ip6_main_t * im,
   return 1;
 }
 
+extern int ip6_get_ll_address (u32 sw_if_index, ip6_address_t * addr);
+
 always_inline int
 ip6_src_address_for_packet (ip_lookup_main_t * lm,
-                           u32 sw_if_index, ip6_address_t * src)
+                           u32 sw_if_index,
+                           const ip6_address_t * dst, ip6_address_t * src)
 {
-  u32 if_add_index = lm->if_address_pool_index_by_sw_if_index[sw_if_index];
-  if (PREDICT_TRUE (if_add_index != ~0))
+  if (ip6_address_is_link_local_unicast (dst))
     {
-      ip_interface_address_t *if_add =
-       pool_elt_at_index (lm->if_address_pool, if_add_index);
-      ip6_address_t *if_ip = ip_interface_address_get_address (lm, if_add);
-      *src = *if_ip;
-      return (0);
+      return ip6_get_ll_address (sw_if_index, src);
     }
   else
     {
-      src->as_u64[0] = 0;
-      src->as_u64[1] = 0;
+      u32 if_add_index =
+       lm->if_address_pool_index_by_sw_if_index[sw_if_index];
+      if (PREDICT_TRUE (if_add_index != ~0))
+       {
+         ip_interface_address_t *if_add =
+           pool_elt_at_index (lm->if_address_pool, if_add_index);
+         ip6_address_t *if_ip =
+           ip_interface_address_get_address (lm, if_add);
+         *src = *if_ip;
+         return (!0);
+       }
     }
-  return (!0);
+
+  src->as_u64[0] = 0;
+  src->as_u64[1] = 0;
+
+  return (0);
 }
 
 /* Find interface address which matches destination. */
@@ -322,7 +359,7 @@ ip6_address_t *ip6_interface_first_address (ip6_main_t * im, u32 sw_if_index);
 int ip6_address_compare (ip6_address_t * a1, ip6_address_t * a2);
 
 clib_error_t *ip6_probe_neighbor (vlib_main_t * vm, ip6_address_t * dst,
-                                 u32 sw_if_index);
+                                 u32 sw_if_index, u8 refresh);
 
 uword
 ip6_udp_register_listener (vlib_main_t * vm,
@@ -375,10 +412,19 @@ int vnet_ip6_nd_term (vlib_main_t * vm,
                      ethernet_header_t * eth,
                      ip6_header_t * ip, u32 sw_if_index, u16 bd_index);
 
+void send_ip6_na (vlib_main_t * vm, u32 sw_if_index);
+void send_ip6_na_w_addr (vlib_main_t * vm,
+                        const ip6_address_t * addr, u32 sw_if_index);
+
 u8 *format_ip6_forward_next_trace (u8 * s, va_list * args);
 
 u32 ip6_tcp_udp_icmp_validate_checksum (vlib_main_t * vm, vlib_buffer_t * p0);
 
+void ip6_punt_policer_add_del (u8 is_add, u32 policer_index);
+void ip6_punt_redirect_add (u32 rx_sw_if_index,
+                           u32 tx_sw_if_index, ip46_address_t * nh);
+void ip6_punt_redirect_del (u32 rx_sw_if_index);
+
 int vnet_set_ip6_classify_intfc (vlib_main_t * vm, u32 sw_if_index,
                                 u32 table_index);
 extern vlib_node_registration_t ip6_lookup_node;
@@ -574,6 +620,7 @@ vlib_buffer_push_ip6 (vlib_main_t * vm, vlib_buffer_t * b,
               sizeof (ip6h->src_address));
   clib_memcpy (ip6h->dst_address.as_u8, dst->as_u8,
               sizeof (ip6h->src_address));
+  b->flags |= VNET_BUFFER_F_IS_IP6;
 
   return ip6h;
 }