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 #include "zebra/zebra_vrf.h"
  32
  33 #ifdef __cplusplus
  34 extern "C" {
  35 #endif
  36
  37 #define ZEBRA_BRIDGE_NO_ACTION (0)
  38 #define ZEBRA_BRIDGE_MASTER_MAC_CHANGE (1 << 1)
  39 #define ZEBRA_BRIDGE_MASTER_UP (1 << 2)
  40
  41 /* zebra L2 interface information - bridge slave (linkage to bridge) */
  42 struct zebra_l2info_brslave {
  43         ifindex_t bridge_ifindex; /* Bridge Master */
  44         struct interface *br_if;  /* Pointer to master */
  45         ns_id_t ns_id; /* network namespace where bridge is */
  46 };
  47
  48 struct zebra_l2info_bond {
  49         struct list *mbr_zifs; /* slaves using this bond as a master */
  50 };
  51
  52 /* zebra L2 interface information - bridge interface */
  53 struct zebra_l2info_bridge {
  54         uint8_t vlan_aware; /* VLAN-aware bridge? */
  55 };
  56
  57 /* zebra L2 interface information - VLAN interface */
  58 struct zebra_l2info_vlan {
  59         vlanid_t vid; /* VLAN id */
  60 };
  61
  62 /* zebra L2 interface information - GRE interface */
  63 struct zebra_l2info_gre {
  64         struct in_addr vtep_ip; /* IFLA_GRE_LOCAL */
  65         struct in_addr vtep_ip_remote; /* IFLA_GRE_REMOTE */
  66         uint32_t ikey;
  67         uint32_t okey;
  68         ifindex_t ifindex_link; /* Interface index of interface
  69                                  * linked with GRE
  70                                  */
  71         ns_id_t link_nsid;
  72 };
  73
  74 /* zebra L2 interface information - VXLAN interface */
  75 struct zebra_l2info_vxlan {
  76         vni_t vni;              /* VNI */
  77         struct in_addr vtep_ip; /* Local tunnel IP */
  78         vlanid_t access_vlan;   /* Access VLAN - for VLAN-aware bridge. */
  79         struct in_addr mcast_grp;
  80         ifindex_t ifindex_link; /* Interface index of interface
  81                                  * linked with VXLAN
  82                                  */
  83         ns_id_t link_nsid;
  84 };
  85
  86 struct zebra_l2info_bondslave {
  87         ifindex_t bond_ifindex;    /* Bridge Master */
  88         struct interface *bond_if; /* Pointer to master */
  89 };
  90
  91 union zebra_l2if_info {
  92         struct zebra_l2info_bridge br;
  93         struct zebra_l2info_vlan vl;
  94         struct zebra_l2info_vxlan vxl;
  95         struct zebra_l2info_gre gre;
  96 };
  97
  98 /* NOTE: These macros are to be invoked only in the "correct" context.
  99  * IOW, the macro VNI_FROM_ZEBRA_IF() will assume the interface is
 100  * of type ZEBRA_IF_VXLAN.
 101  */
 102 #define VNI_FROM_ZEBRA_IF(zif) (zif)->l2info.vxl.vni
 103 #define VLAN_ID_FROM_ZEBRA_IF(zif) (zif)->l2info.vl.vid
 104
 105 #define IS_ZEBRA_IF_BRIDGE_VLAN_AWARE(zif) ((zif)->l2info.br.vlan_aware == 1)
 106
 107 extern void zebra_l2_map_slave_to_bridge(struct zebra_l2info_brslave *br_slave,
 108                                          struct zebra_ns *zns);
 109 extern void
 110 zebra_l2_unmap_slave_from_bridge(struct zebra_l2info_brslave *br_slave);
 111 extern void zebra_l2_bridge_add_update(struct interface *ifp,
 112                                        struct zebra_l2info_bridge *bridge_info,
 113                                        int add);
 114 extern void zebra_l2_bridge_del(struct interface *ifp);
 115 extern void zebra_l2_vlanif_update(struct interface *ifp,
 116                                    struct zebra_l2info_vlan *vlan_info);
 117 extern void zebra_l2_greif_add_update(struct interface *ifp,
 118                                       struct zebra_l2info_gre *vxlan_info,
 119                                       int add);
 120 extern void zebra_l2_vxlanif_add_update(struct interface *ifp,
 121                                         struct zebra_l2info_vxlan *vxlan_info,
 122                                         int add);
 123 extern void zebra_l2_vxlanif_update_access_vlan(struct interface *ifp,
 124                                                 vlanid_t access_vlan);
 125 extern void zebra_l2_greif_del(struct interface *ifp);
 126 extern void zebra_l2_vxlanif_del(struct interface *ifp);
 127 extern void zebra_l2if_update_bridge_slave(struct interface *ifp,
 128                                            ifindex_t bridge_ifindex,
 129                                            ns_id_t ns_id, uint8_t chgflags);
 130
 131 extern void zebra_l2if_update_bond_slave(struct interface *ifp,
 132                                          ifindex_t bond_ifindex, bool bypass);
 133 extern void zebra_vlan_bitmap_compute(struct interface *ifp,
 134                 uint32_t vid_start, uint16_t vid_end);
 135 extern void zebra_vlan_mbr_re_eval(struct interface *ifp,
 136                 bitfield_t vlan_bitmap);
 137 extern void zebra_l2if_update_bond(struct interface *ifp, bool add);
 138 extern void zebra_l2if_update_bridge(struct interface *ifp, uint8_t chgflags);
 139
 140 #ifdef __cplusplus
 141 }
 142 #endif
 143
 144 #endif /* _ZEBRA_L2_H */