zebra/zebra_vrf.h

   1 /*
   2  * Zebra Vrf Header
   3  * Copyright (C) 2016 Cumulus Networks
   4  *                    Donald Sahrp
   5  *
   6  * This file is part of Quagga.
   7  *
   8  * Quagga is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License as published by the
  10  * Free Software Foundation; either version 2, or (at your option) any
  11  * later version.
  12  *
  13  * Quagga is distributed in the hope that it will be useful, but
  14  * WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16  * General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License along
  19  * with this program; see the file COPYING; if not, write to the Free Software
  20  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  21  */
  22 #if !defined(__ZEBRA_VRF_H__)
  23 #define __ZEBRA_VRF_H__
  24
  25 #include <zebra/zebra_ns.h>
  26 #include <zebra/zebra_pw.h>
  27 #include <lib/vxlan.h>
  28
  29 /* MPLS (Segment Routing) global block */
  30 typedef struct mpls_srgb_t_ {
  31         u_int32_t start_label;
  32         u_int32_t end_label;
  33 } mpls_srgb_t;
  34
  35 /* Routing table instance.  */
  36 struct zebra_vrf {
  37         /* Back pointer */
  38         struct vrf *vrf;
  39
  40         /* Description.  */
  41         char *desc;
  42
  43         /* FIB identifier.  */
  44         u_char fib_id;
  45
  46         /* Flags. */
  47         u_int16_t flags;
  48 #define ZEBRA_VRF_RIB_SCHEDULED   (1 << 0)
  49 #define ZEBRA_VRF_RETAIN          (2 << 0)
  50
  51         u_int32_t table_id;
  52
  53         /* Routing table.  */
  54         struct route_table *table[AFI_MAX][SAFI_MAX];
  55
  56         /* Static route configuration.  */
  57         struct route_table *stable[AFI_MAX][SAFI_MAX];
  58
  59         /* Recursive Nexthop table */
  60         struct route_table *rnh_table[AFI_MAX];
  61
  62         /* Import check table (used mostly by BGP */
  63         struct route_table *import_check_table[AFI_MAX];
  64
  65         /* 2nd pointer type used primarily to quell a warning on
  66          * ALL_LIST_ELEMENTS_RO
  67          */
  68         struct list _rid_all_sorted_list;
  69         struct list _rid_lo_sorted_list;
  70         struct list *rid_all_sorted_list;
  71         struct list *rid_lo_sorted_list;
  72         struct prefix rid_user_assigned;
  73
  74         /*
  75          * Back pointer to the owning namespace.
  76          */
  77         struct zebra_ns *zns;
  78
  79         /* MPLS Label to handle L3VPN <-> vrf popping */
  80         mpls_label_t label[AFI_MAX];
  81
  82         /* MPLS static LSP config table */
  83         struct hash *slsp_table;
  84
  85         /* MPLS label forwarding table */
  86         struct hash *lsp_table;
  87
  88         /* MPLS FEC binding table */
  89         struct route_table *fec_table[AFI_MAX];
  90
  91         /* MPLS Segment Routing Global block */
  92         mpls_srgb_t mpls_srgb;
  93
  94         /* Pseudowires. */
  95         struct zebra_pw_head pseudowires;
  96         struct zebra_static_pw_head static_pseudowires;
  97
  98         /* MPLS processing flags */
  99         u_int16_t mpls_flags;
 100 #define MPLS_FLAG_SCHEDULE_LSPS    (1 << 0)
 101
 102         /*
 103          * VNI hash table (for EVPN). Only in default instance.
 104          */
 105         struct hash *vni_table;
 106
 107         /*
 108          * Whether EVPN is enabled or not. Only in default instance.
 109          */
 110         int advertise_all_vni;
 111
 112         /*
 113          * Whether we are advertising g/w macip in EVPN or not.
 114          * Only in default instance.
 115          */
 116         int advertise_gw_macip;
 117
 118         /* l3-vni info */
 119         vni_t l3vni;
 120
 121         /* Route Installs */
 122         uint64_t installs;
 123         uint64_t removals;
 124         uint64_t neigh_updates;
 125         uint64_t lsp_installs;
 126         uint64_t lsp_removals;
 127 };
 128
 129 static inline vrf_id_t zvrf_id(struct zebra_vrf *zvrf)
 130 {
 131         if (!zvrf || !zvrf->vrf)
 132                 return VRF_UNKNOWN;
 133         return zvrf->vrf->vrf_id;
 134 }
 135
 136 static inline const char *zvrf_ns_name(struct zebra_vrf *zvrf)
 137 {
 138         if (!zvrf->vrf || !zvrf->vrf->ns_ctxt)
 139                 return NULL;
 140         return ns_get_name((struct ns *)zvrf->vrf->ns_ctxt);
 141 }
 142
 143 static inline const char *zvrf_name(struct zebra_vrf *zvrf)
 144 {
 145         return zvrf->vrf->name;
 146 }
 147
 148 static inline bool zvrf_is_active(struct zebra_vrf *zvrf)
 149 {
 150         return zvrf->vrf->status & VRF_ACTIVE;
 151 }
 152
 153 struct route_table *zebra_vrf_table_with_table_id(afi_t afi, safi_t safi,
 154                                                   vrf_id_t vrf_id,
 155                                                   u_int32_t table_id);
 156
 157 extern void zebra_vrf_update_all(struct zserv *client);
 158 extern struct zebra_vrf *zebra_vrf_lookup_by_id(vrf_id_t vrf_id);
 159 extern struct zebra_vrf *zebra_vrf_lookup_by_name(const char *);
 160 extern struct zebra_vrf *zebra_vrf_alloc(void);
 161 extern struct route_table *zebra_vrf_table(afi_t, safi_t, vrf_id_t);
 162 extern struct route_table *zebra_vrf_static_table(afi_t, safi_t,
 163                                                   struct zebra_vrf *zvrf);
 164 extern struct route_table *
 165 zebra_vrf_other_route_table(afi_t afi, u_int32_t table_id, vrf_id_t vrf_id);
 166 extern int zebra_vrf_has_config(struct zebra_vrf *zvrf);
 167 extern void zebra_vrf_init(void);
 168
 169 extern void zebra_rtable_node_cleanup(struct route_table *table,
 170                                       struct route_node *node);
 171 #endif /* ZEBRA_VRF_H */