VPP-1506: dump local punts and registered punt sockets
[vpp.git] / src / vnet / ip / ip6_neighbor.c
old mode 100644 (file)
new mode 100755 (executable)
index 7c7a706..9be5720
@@ -25,6 +25,7 @@
 #include <vnet/fib/ip6_fib.h>
 #include <vnet/mfib/ip6_mfib.h>
 #include <vnet/ip/ip6_ll_table.h>
+#include <vnet/l2/l2_input.h>
 
 /**
  * @file
@@ -242,9 +243,10 @@ ip6_neighbor_get_link_local_address (u32 sw_if_index)
   static ip6_address_t empty_address = { {0} };
   ip6_neighbor_main_t *nm = &ip6_neighbor_main;
   ip6_radv_t *radv_info;
-  u32 ri;
+  u32 ri = ~0;
 
-  ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
+  if (vec_len (nm->if_radv_pool_index_by_sw_if_index) > sw_if_index)
+    ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
   if (ri == ~0)
     {
       clib_warning ("IPv6 is not enabled for sw_if_index %d", sw_if_index);
@@ -342,7 +344,7 @@ format_ip6_neighbor_ip6_entry (u8 * s, va_list * va)
   u8 *flags = 0;
 
   if (!n)
-    return format (s, "%=12s%=25s%=6s%=20s%=40s", "Time", "Address", "Flags",
+    return format (s, "%=12s%=45s%=6s%=20s%=40s", "Time", "Address", "Flags",
                   "Link layer", "Interface");
 
   if (n->flags & IP6_NEIGHBOR_FLAG_DYNAMIC)
@@ -355,7 +357,7 @@ format_ip6_neighbor_ip6_entry (u8 * s, va_list * va)
     flags = format (flags, "N");
 
   si = vnet_get_sw_interface (vnm, n->key.sw_if_index);
-  s = format (s, "%=12U%=25U%=6s%=20U%=40U",
+  s = format (s, "%=12U%=45U%=6s%=20U%=40U",
              format_vlib_time, vm, n->time_last_updated,
              format_ip6_address, &n->key.ip6_address,
              flags ? (char *) flags : "",
@@ -413,8 +415,9 @@ static void ip6_neighbor_set_unset_rpc_callback
 static void set_unset_ip6_neighbor_rpc
   (vlib_main_t * vm,
    u32 sw_if_index,
-   ip6_address_t * a, u8 * link_layer_address, int is_add, int is_static,
-   int is_no_fib_entry)
+   const ip6_address_t * a,
+   const u8 * link_layer_address,
+   int is_add, int is_static, int is_no_fib_entry)
 {
   ip6_neighbor_set_unset_rpc_args_t args;
   void vl_api_rpc_call_main_thread (void *fp, u8 * data, u32 data_length);
@@ -771,8 +774,8 @@ force_reuse_neighbor_entry (void)
 int
 vnet_set_ip6_ethernet_neighbor (vlib_main_t * vm,
                                u32 sw_if_index,
-                               ip6_address_t * a,
-                               u8 * link_layer_address,
+                               const ip6_address_t * a,
+                               const u8 * link_layer_address,
                                uword n_bytes_link_layer_address,
                                int is_static, int is_no_fib_entry)
 {
@@ -894,7 +897,7 @@ check_customers:
          pool_put (nm->pending_resolutions, pr);
        }
 
-      mhash_unset (&nm->pending_resolutions_by_address, a, 0);
+      mhash_unset (&nm->pending_resolutions_by_address, (void *) a, 0);
     }
 
   /* Customer(s) requesting ND event for this address? */
@@ -913,7 +916,8 @@ check_customers:
          /* Call the user's data callback, return 1 to suppress dup events */
          if (fp)
            rv =
-             (*fp) (mc->data, link_layer_address, sw_if_index, &ip6a_zero);
+             (*fp) (mc->data, (u8 *) link_layer_address, sw_if_index,
+                    &ip6a_zero);
          /*
           * Signal the resolver process, as long as the user
           * says they want to be notified
@@ -930,10 +934,7 @@ check_customers:
 
 int
 vnet_unset_ip6_ethernet_neighbor (vlib_main_t * vm,
-                                 u32 sw_if_index,
-                                 ip6_address_t * a,
-                                 u8 * link_layer_address,
-                                 uword n_bytes_link_layer_address)
+                                 u32 sw_if_index, const ip6_address_t * a)
 {
   ip6_neighbor_main_t *nm = &ip6_neighbor_main;
   ip6_neighbor_key_t k;
@@ -943,7 +944,7 @@ vnet_unset_ip6_ethernet_neighbor (vlib_main_t * vm,
 
   if (vlib_get_thread_index ())
     {
-      set_unset_ip6_neighbor_rpc (vm, sw_if_index, a, link_layer_address,
+      set_unset_ip6_neighbor_rpc (vm, sw_if_index, a, NULL,
                                  0 /* unset */ , 0, 0);
       return 0;
     }
@@ -982,8 +983,7 @@ static void ip6_neighbor_set_unset_rpc_callback
                                    a->link_layer_address, 6, a->is_static,
                                    a->is_no_fib_entry);
   else
-    vnet_unset_ip6_ethernet_neighbor (vm, a->sw_if_index, &a->addr,
-                                     a->link_layer_address, 6);
+    vnet_unset_ip6_ethernet_neighbor (vm, a->sw_if_index, &a->addr);
 }
 
 static int
@@ -1121,8 +1121,7 @@ set_ip6_neighbor (vlib_main_t * vm,
                                    mac_address, sizeof (mac_address),
                                    is_static, is_no_fib_entry);
   else
-    vnet_unset_ip6_ethernet_neighbor (vm, sw_if_index, &addr,
-                                     mac_address, sizeof (mac_address));
+    vnet_unset_ip6_ethernet_neighbor (vm, sw_if_index, &addr);
   return 0;
 }
 
@@ -2655,7 +2654,7 @@ ip6_neighbor_sw_interface_add_del (vnet_main_t * vnm,
          nm->if_radv_pool_index_by_sw_if_index[sw_if_index] = ri;
 
          /* initialize default values (most of which are zero) */
-         memset (a, 0, sizeof (a[0]));
+         clib_memset (a, 0, sizeof (a[0]));
 
          a->sw_if_index = sw_if_index;
          a->max_radv_interval = DEF_MAX_RADV_INTERVAL;
@@ -2782,7 +2781,7 @@ ip6_neighbor_send_mldpv2_report (u32 sw_if_index)
   ip0 = (ip6_header_t *) & rp0->ip;
   rh0 = (icmp6_multicast_listener_report_header_t *) & rp0->report_hdr;
 
-  memset (rp0, 0x0, sizeof (icmp6_multicast_listener_report_packet_t));
+  clib_memset (rp0, 0x0, sizeof (icmp6_multicast_listener_report_packet_t));
 
   ip0->ip_version_traffic_class_and_flow_label =
     clib_host_to_net_u32 (0x6 << 28);
@@ -2970,7 +2969,7 @@ ip6_neighbor_process_timer_event (vlib_main_t * vm,
 
         h0 =  vlib_buffer_get_current (b0);
 
-        memset (h0, 0, sizeof (icmp6_router_solicitation_header_t));
+        clib_memset (h0, 0, sizeof (icmp6_router_solicitation_header_t));
 
         h0->ip.ip_version_traffic_class_and_flow_label = clib_host_to_net_u32 (0x6 << 28);
         h0->ip.payload_length = clib_host_to_net_u16 (sizeof (icmp6_router_solicitation_header_t)
@@ -3165,31 +3164,15 @@ ip6_discover_neighbor_inline (vlib_main_t * vm,
   ip_lookup_main_t *lm = &im->lookup_main;
   u32 *from, *to_next_drop;
   uword n_left_from, n_left_to_next_drop;
-  static f64 time_last_seed_change = -1e100;
-  static u32 hash_seeds[3];
-  static uword hash_bitmap[256 / BITS (uword)];
-  f64 time_now;
+  u64 seed;
+  u32 thread_index = vm->thread_index;
   int bogus_length;
   ip6_neighbor_main_t *nm = &ip6_neighbor_main;
 
   if (node->flags & VLIB_NODE_FLAG_TRACE)
     ip6_forward_next_trace (vm, node, frame, VLIB_TX);
 
-  time_now = vlib_time_now (vm);
-  if (time_now - time_last_seed_change > 1e-3)
-    {
-      uword i;
-      u32 *r = clib_random_buffer_get_data (&vm->random_buffer,
-                                           sizeof (hash_seeds));
-      for (i = 0; i < ARRAY_LEN (hash_seeds); i++)
-       hash_seeds[i] = r[i];
-
-      /* Mark all hash keys as been not-seen before. */
-      for (i = 0; i < ARRAY_LEN (hash_bitmap); i++)
-       hash_bitmap[i] = 0;
-
-      time_last_seed_change = time_now;
-    }
+  seed = throttle_seed (&im->nd_throttle, thread_index, vlib_time_now (vm));
 
   from = vlib_frame_vector_args (frame);
   n_left_from = frame->n_vectors;
@@ -3201,14 +3184,12 @@ ip6_discover_neighbor_inline (vlib_main_t * vm,
 
       while (n_left_from > 0 && n_left_to_next_drop > 0)
        {
-         vlib_buffer_t *p0;
-         ip6_header_t *ip0;
-         u32 pi0, adj_index0, a0, b0, c0, m0, sw_if_index0, drop0;
-         uword bm0;
-         ip_adjacency_t *adj0;
+         u32 pi0, adj_index0, sw_if_index0, drop0, r0, next0;
          vnet_hw_interface_t *hw_if0;
          ip6_radv_t *radv_info;
-         u32 next0;
+         ip_adjacency_t *adj0;
+         vlib_buffer_t *p0;
+         ip6_header_t *ip0;
 
          pi0 = from[0];
 
@@ -3228,33 +3209,13 @@ ip6_discover_neighbor_inline (vlib_main_t * vm,
                adj0->sub_type.nbr.next_hop.ip6.as_u64[1];
            }
 
-         a0 = hash_seeds[0];
-         b0 = hash_seeds[1];
-         c0 = hash_seeds[2];
-
          sw_if_index0 = adj0->rewrite_header.sw_if_index;
          vnet_buffer (p0)->sw_if_index[VLIB_TX] = sw_if_index0;
 
-         a0 ^= sw_if_index0;
-         b0 ^= ip0->dst_address.as_u32[0];
-         c0 ^= ip0->dst_address.as_u32[1];
-
-         hash_v3_mix32 (a0, b0, c0);
-
-         b0 ^= ip0->dst_address.as_u32[2];
-         c0 ^= ip0->dst_address.as_u32[3];
-
-         hash_v3_finalize32 (a0, b0, c0);
+         /* combine the address and interface for a hash */
+         r0 = ip6_address_hash_to_u64 (&ip0->dst_address) ^ sw_if_index0;
 
-         c0 &= BITS (hash_bitmap) - 1;
-         c0 = c0 / BITS (uword);
-         m0 = (uword) 1 << (c0 % BITS (uword));
-
-         bm0 = hash_bitmap[c0];
-         drop0 = (bm0 & m0) != 0;
-
-         /* Mark it as seen. */
-         hash_bitmap[c0] = bm0 | m0;
+         drop0 = throttle_check (&im->nd_throttle, thread_index, r0, seed);
 
          from += 1;
          n_left_from -= 1;
@@ -3590,7 +3551,7 @@ ip6_neighbor_ra_prefix (vlib_main_t * vm, u32 sw_if_index,
          mhash_set (&radv_info->address_to_prefix_index, prefix_addr, pi,
                     /* old_value */ 0);
 
-         memset (prefix, 0x0, sizeof (ip6_radv_prefix_t));
+         clib_memset (prefix, 0x0, sizeof (ip6_radv_prefix_t));
 
          prefix->prefix_len = prefix_len;
          clib_memcpy (&prefix->prefix, prefix_addr, sizeof (ip6_address_t));
@@ -4247,7 +4208,7 @@ ip6_get_ll_address (u32 sw_if_index, ip6_address_t * addr)
   ip6_radv_t *radv_info;
   u32 ri;
 
-  if (vec_len (nm->if_radv_pool_index_by_sw_if_index) < sw_if_index)
+  if (vec_len (nm->if_radv_pool_index_by_sw_if_index) <= sw_if_index)
     return 0;
 
   ri = nm->if_radv_pool_index_by_sw_if_index[sw_if_index];
@@ -4464,21 +4425,19 @@ VLIB_CLI_COMMAND (ip6_nd_command, static) =
 /* *INDENT-ON* */
 
 clib_error_t *
-set_ip6_link_local_address (vlib_main_t * vm,
-                           u32 sw_if_index, ip6_address_t * address)
+ip6_neighbor_set_link_local_address (vlib_main_t * vm, u32 sw_if_index,
+                                    ip6_address_t * address)
 {
   clib_error_t *error = 0;
   ip6_neighbor_main_t *nm = &ip6_neighbor_main;
   u32 ri;
   ip6_radv_t *radv_info;
   vnet_main_t *vnm = vnet_get_main ();
+  ip6_ll_prefix_t pfx = { 0, };
 
   if (!ip6_address_is_link_local_unicast (address))
-    {
-      vnm->api_errno = VNET_API_ERROR_ADDRESS_NOT_LINK_LOCAL;
-      return (error = clib_error_return (0, "address not link-local",
-                                        format_unformat_error));
-    }
+    return (error = clib_error_return (0, "address not link-local",
+                                      format_unformat_error));
 
   /* call enable ipv6  */
   enable_ip6_interface (vm, sw_if_index);
@@ -4489,25 +4448,16 @@ set_ip6_link_local_address (vlib_main_t * vm,
     {
       radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
 
-      /* save if link local address (overwrite default) */
+      pfx.ilp_sw_if_index = sw_if_index;
 
-      /* delete the old one */
-      error = ip6_add_del_interface_address (vm, sw_if_index,
-                                            &radv_info->link_local_address,
-                                            128, 1 /* is_del */ );
+      pfx.ilp_addr = radv_info->link_local_address;
+      ip6_ll_table_entry_delete (&pfx);
 
-      if (!error)
-       {
-         /* add the new one */
-         error = ip6_add_del_interface_address (vm, sw_if_index,
-                                                address, 128,
-                                                0 /* is_del */ );
+      pfx.ilp_addr = *address;
+      ip6_ll_table_entry_update (&pfx, FIB_ROUTE_PATH_LOCAL);
 
-         if (!error)
-           {
-             radv_info->link_local_address = *address;
-           }
-       }
+      radv_info = pool_elt_at_index (nm->if_radv_pool, ri);
+      radv_info->link_local_address = *address;
     }
   else
     {
@@ -4518,50 +4468,6 @@ set_ip6_link_local_address (vlib_main_t * vm,
   return error;
 }
 
-clib_error_t *
-set_ip6_link_local_address_cmd (vlib_main_t * vm,
-                               unformat_input_t * input,
-                               vlib_cli_command_t * cmd)
-{
-  vnet_main_t *vnm = vnet_get_main ();
-  clib_error_t *error = 0;
-  u32 sw_if_index;
-  ip6_address_t ip6_addr;
-
-  if (unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
-    {
-      /* get the rest of the command */
-      while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
-       {
-         if (unformat (input, "%U", unformat_ip6_address, &ip6_addr))
-           break;
-         else
-           return (unformat_parse_error (input));
-       }
-    }
-  error = set_ip6_link_local_address (vm, sw_if_index, &ip6_addr);
-  return error;
-}
-
-/*?
- * This command is used to assign an IPv6 Link-local address to an
- * interface. This command will enable IPv6 on an interface if it
- * is not already enabled. Use the '<em>show ip6 interface</em>' command
- * to display the assigned Link-local address.
- *
- * @cliexpar
- * Example of how to assign an IPv6 Link-local address to an interface:
- * @cliexcmd{set ip6 link-local address GigabitEthernet2/0/0 FE80::AB8}
-?*/
-/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (set_ip6_link_local_address_command, static) =
-{
-  .path = "set ip6 link-local address",
-  .short_help = "set ip6 link-local address <interface> <ip6-address>",
-  .function = set_ip6_link_local_address_cmd,
-};
-/* *INDENT-ON* */
-
 /**
  * @brief callback when an interface address is added or deleted
  */
@@ -4696,7 +4602,7 @@ ip6_neighbor_init (vlib_main_t * vm)
 
   /* add call backs */
   ip6_add_del_interface_address_callback_t cb;
-  memset (&cb, 0x0, sizeof (ip6_add_del_interface_address_callback_t));
+  clib_memset (&cb, 0x0, sizeof (ip6_add_del_interface_address_callback_t));
 
   /* when an interface address changes... */
   cb.function = ip6_neighbor_add_del_interface_address;
@@ -4944,8 +4850,7 @@ ip6_neighbor_proxy_add_del (u32 sw_if_index, ip6_address_t * addr, u8 is_del)
                                   sw_if_index,
                                   ~0, 1, FIB_ROUTE_PATH_FLAG_NONE);
       /* flush the ND cache of this address if it's there */
-      vnet_unset_ip6_ethernet_neighbor (vlib_get_main (),
-                                       sw_if_index, addr, NULL, 0);
+      vnet_unset_ip6_ethernet_neighbor (vlib_get_main (), sw_if_index, addr);
     }
   else
     {
@@ -5067,6 +4972,8 @@ send_ip6_na_w_addr (vlib_main_t * vm,
       h->neighbor.target_address = ip6_addr[0];
       h->neighbor.advertisement_flags = clib_host_to_net_u32
        (ICMP6_NEIGHBOR_ADVERTISEMENT_FLAG_OVERRIDE);
+      h->link_layer_option.header.type =
+       ICMP6_NEIGHBOR_DISCOVERY_OPTION_target_link_layer_address;
       clib_memcpy (h->link_layer_option.ethernet_address,
                   hi->hw_address, vec_len (hi->hw_address));
       h->neighbor.icmp.checksum =