src/vnet/ethernet/arp.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
  16 #ifndef __ARP_H__
  17 #define __ARP_H__
  18
  19 #include <vnet/ethernet/ethernet.h>
  20 #include <vnet/ethernet/arp_packet.h>
  21 #include <vnet/ip/ip.h>
  22 #include <vnet/ip/ip_neighbor.h>
  23
  24 typedef struct
  25 {
  26   u32 sw_if_index;
  27   ip4_address_t ip4_address;
  28
  29   mac_address_t mac;
  30
  31   ip_neighbor_flags_t flags;
  32
  33   f64 time_last_updated;
  34
  35   /**
  36    * The index of the adj-fib entry created
  37    */
  38   fib_node_index_t fib_entry_index;
  39 } ethernet_arp_ip4_entry_t;
  40
  41 extern u8 *format_ethernet_arp_ip4_entry (u8 * s, va_list * va);
  42
  43 ethernet_arp_ip4_entry_t *ip4_neighbors_pool (void);
  44 ethernet_arp_ip4_entry_t *ip4_neighbor_entries (u32 sw_if_index);
  45
  46 extern int vnet_proxy_arp_add_del (ip4_address_t * lo_addr,
  47                                    ip4_address_t * hi_addr,
  48                                    u32 fib_index, int is_del);
  49
  50 extern int vnet_arp_set_ip4_over_ethernet (vnet_main_t * vnm,
  51                                            u32 sw_if_index,
  52                                            const
  53                                            ethernet_arp_ip4_over_ethernet_address_t
  54                                            * a, ip_neighbor_flags_t flags);
  55
  56 extern int vnet_arp_unset_ip4_over_ethernet (vnet_main_t * vnm,
  57                                              u32 sw_if_index,
  58                                              const
  59                                              ethernet_arp_ip4_over_ethernet_address_t
  60                                              * a);
  61
  62 extern int vnet_proxy_arp_fib_reset (u32 fib_id);
  63
  64 void vnet_register_ip4_arp_resolution_event (vnet_main_t * vnm,
  65                                              void *address_arg,
  66                                              uword node_index,
  67                                              uword type_opaque, uword data);
  68
  69 typedef int (*arp_change_event_cb_t) (u32 pool_index,
  70                                       const mac_address_t * mac,
  71                                       u32 sw_if_index,
  72                                       const ip4_address_t * address);
  73
  74 int vnet_add_del_ip4_arp_change_event (vnet_main_t * vnm,
  75                                        arp_change_event_cb_t data_callback,
  76                                        u32 pid,
  77                                        void *address_arg,
  78                                        uword node_index,
  79                                        uword type_opaque,
  80                                        uword data, int is_add);
  81
  82 void wc_arp_set_publisher_node (uword inode_index, uword event_type);
  83
  84 void ethernet_arp_change_mac (u32 sw_if_index);
  85 void ethernet_ndp_change_mac (u32 sw_if_index);
  86
  87 void arp_update_adjacency (vnet_main_t * vnm, u32 sw_if_index, u32 ai);
  88
  89 typedef struct
  90 {
  91   u32 sw_if_index;
  92   ip4_address_t ip;
  93   mac_address_t mac;
  94 } wc_arp_report_t;
  95
  96 /**
  97  * call back function when walking the DB of proxy ARPs
  98  * @return 0 to stop the walk !0 to continue
  99  */
 100 typedef walk_rc_t (proxy_arp_walk_t) (const ip4_address_t * lo_addr,
 101                                       const ip4_address_t * hi_addr,
 102                                       u32 fib_index, void *dat);
 103
 104 extern void proxy_arp_walk (proxy_arp_walk_t cb, void *data);
 105
 106 #endif
 107
 108 /*
 109  * fd.io coding-style-patch-verification: ON
 110  *
 111  * Local Variables:
 112  * eval: (c-set-style "gnu")
 113  * End:
 114  */