src/vnet/l2/l2_xcrw.h

   1 /*
   2  * Copyright (c) 2015 Cisco and/or its affiliates.
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15 #ifndef __included_l2_xcrw_h__
  16 #define __included_l2_xcrw_h__
  17
  18 #include <vlib/vlib.h>
  19 #include <vnet/vnet.h>
  20 #include <vppinfra/error.h>
  21 #include <vnet/ip/ip.h>
  22 #include <vnet/l2/l2_input.h>
  23 #include <vnet/l2/l2_output.h>
  24 #include <vnet/api_errno.h>
  25 #include <vnet/ethernet/ethernet.h>
  26
  27 typedef struct
  28 {
  29   /*
  30    * Let: rewrite_header.sw_if_index = tx_fib_index or ~0.
  31    *      rewrite_header.next_index = L2_XCRW_NEXT_XXX
  32    */
  33   VNET_DECLARE_REWRITE;
  34 } l2_xcrw_adjacency_t;
  35
  36 typedef struct
  37 {
  38   /* L2 interface */
  39   u32 l2_sw_if_index;
  40
  41   /* Tunnel interface */
  42   u32 tunnel_sw_if_index;       /* This field remains set in freed pool elts */
  43
  44 } l2_xcrw_tunnel_t;
  45
  46 typedef struct
  47 {
  48   u32 cached_next_index;
  49
  50   /* Vector of cross-connect rewrites */
  51   l2_xcrw_adjacency_t *adj_by_sw_if_index;
  52
  53   /* Pool of xcrw tunnels */
  54   l2_xcrw_tunnel_t *tunnels;
  55
  56   /* Tunnel index by tunnel sw_if_index */
  57   uword *tunnel_index_by_l2_sw_if_index;
  58
  59   /* convenience variables */
  60   vlib_main_t *vlib_main;
  61   vnet_main_t *vnet_main;
  62 } l2_xcrw_main_t;
  63
  64 typedef enum
  65 {
  66   L2_XCRW_NEXT_DROP,
  67   L2_XCRW_N_NEXT,
  68 } l2_xcrw_next_t;
  69
  70 #define foreach_l2_xcrw_error                   \
  71 _(DROP, "Packets dropped")                      \
  72 _(FWD, "Packets forwarded")
  73
  74 typedef enum
  75 {
  76 #define _(sym,str) L2_XCRW_ERROR_##sym,
  77   foreach_l2_xcrw_error
  78 #undef _
  79     L2_XCRW_N_ERROR,
  80 } l2_xcrw_error_t;
  81
  82 extern vlib_node_registration_t l2_xcrw_node;
  83
  84 #endif /* __included_l2_xcrw_h__ */
  85
  86 /*
  87  * fd.io coding-style-patch-verification: ON
  88  *
  89  * Local Variables:
  90  * eval: (c-set-style "gnu")
  91  * End:
  92  */