zebra/zebra_l2.h

   1 /*
   2  * Zebra Layer-2 interface Data structures and definitions
   3  * Copyright (C) 2016, 2017 Cumulus Networks, Inc.
   4  *
   5  * This file is part of FRR.
   6  *
   7  * FRR is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License as published by the
   9  * Free Software Foundation; either version 2, or (at your option) any
  10  * later version.
  11  *
  12  * FRR is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with FRR; see the file COPYING.  If not, write to the Free
  19  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
  20  * 02111-1307, USA.
  21  */
  22
  23 #ifndef _ZEBRA_L2_H
  24 #define _ZEBRA_L2_H
  25
  26 #include <zebra.h>
  27
  28 #include "if.h"
  29 #include "vlan.h"
  30 #include "vxlan.h"
  31
  32 /* zebra L2 interface information - bridge slave (linkage to bridge) */
  33 struct zebra_l2info_brslave
  34 {
  35   ifindex_t bridge_ifindex;   /* Bridge Master */
  36   struct interface *br_if;    /* Pointer to master */
  37 };
  38
  39 /* zebra L2 interface information - bridge interface */
  40 struct zebra_l2info_bridge
  41 {
  42   u_char vlan_aware;          /* VLAN-aware bridge? */
  43 };
  44
  45 /* zebra L2 interface information - VLAN interface */
  46 struct zebra_l2info_vlan
  47 {
  48   vlanid_t vid;                  /* VLAN id */
  49 };
  50
  51 /* zebra L2 interface information - VXLAN interface */
  52 struct zebra_l2info_vxlan
  53 {
  54   vni_t vni;                     /* VNI */
  55   struct in_addr vtep_ip;        /* Local tunnel IP */
  56   vlanid_t access_vlan;          /* Access VLAN - for VLAN-aware bridge. */
  57 };
  58
  59 union zebra_l2if_info
  60 {
  61   struct zebra_l2info_bridge  br;
  62   struct zebra_l2info_vlan    vl;
  63   struct zebra_l2info_vxlan   vxl;
  64 };
  65
  66 /* NOTE: These macros are to be invoked only in the "correct" context.
  67  * IOW, the macro VNI_FROM_ZEBRA_IF() will assume the interface is
  68  * of type ZEBRA_IF_VXLAN.
  69  */
  70 #define VNI_FROM_ZEBRA_IF(zif) (zif)->l2info.vxl.vni
  71 #define VLAN_ID_FROM_ZEBRA_IF(zif) (zif)->l2info.vl.vid
  72
  73 #define IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(zif) \
  74         ((zif)->l2info.br.vlan_aware == 1)
  75
  76
  77 extern void zebra_l2_map_slave_to_bridge (struct zebra_l2info_brslave *br_slave);
  78 extern void zebra_l2_unmap_slave_from_bridge (struct zebra_l2info_brslave *br_slave);
  79 extern void zebra_l2_bridge_add_update (struct interface *ifp,
  80                                         struct zebra_l2info_bridge *bridge_info,
  81                                         int add);
  82 extern void zebra_l2_bridge_del (struct interface *ifp);
  83 extern void zebra_l2_vlanif_update (struct interface *ifp,
  84                                     struct zebra_l2info_vlan *vlan_info);
  85 extern void zebra_l2_vxlanif_add_update (struct interface *ifp,
  86                                          struct zebra_l2info_vxlan *vxlan_info,
  87                                          int add);
  88 extern void zebra_l2_vxlanif_update_access_vlan (struct interface *ifp,
  89                                                  vlanid_t access_vlan);
  90 extern void zebra_l2_vxlanif_del (struct interface *ifp);
  91 extern void zebra_l2if_update_bridge_slave (struct interface *ifp,
  92                                             ifindex_t bridge_ifindex);
  93
  94 #endif /* _ZEBRA_L2_H */