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316 lines
10 KiB
C
316 lines
10 KiB
C
/*
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*
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* Copyright 2009-2016, LabN Consulting, L.L.C.
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*
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _QUAGGA_BGP_RFAPI_CFG_H
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#define _QUAGGA_BGP_RFAPI_CFG_H
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#include "lib/table.h"
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#include "lib/routemap.h"
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#ifdef ENABLE_BGP_VNC
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#include "rfapi.h"
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struct rfapi_l2_group_cfg {
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char *name;
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uint32_t logical_net_id;
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struct list *labels; /* list of uint32_t */
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struct ecommunity *rt_import_list;
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struct ecommunity *rt_export_list;
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void *rfp_cfg; /* rfp owned group config */
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QOBJ_FIELDS;
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};
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DECLARE_QOBJ_TYPE(rfapi_l2_group_cfg);
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typedef enum {
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RFAPI_GROUP_CFG_NVE = 1,
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RFAPI_GROUP_CFG_VRF,
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RFAPI_GROUP_CFG_L2,
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RFAPI_GROUP_CFG_MAX
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} rfapi_group_cfg_type_t;
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struct rfapi_nve_group_cfg {
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struct agg_node *vn_node; /* backref */
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struct agg_node *un_node; /* backref */
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rfapi_group_cfg_type_t type; /* NVE|VPN */
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char *name; /* unique by type! */
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struct prefix vn_prefix;
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struct prefix un_prefix;
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struct prefix_rd rd;
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uint8_t l2rd; /* 0 = VN addr LSB */
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uint32_t response_lifetime;
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uint32_t flags;
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#define RFAPI_RFG_RESPONSE_LIFETIME 0x01 /* bits */
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#define RFAPI_RFG_L2RD 0x02
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#define RFAPI_RFG_VPN_NH_SELF 0x04
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struct ecommunity *rt_import_list;
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struct ecommunity *rt_export_list;
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struct rfapi_import_table *rfapi_import_table;
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void *rfp_cfg; /* rfp owned group config */
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/*
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* List of NVE descriptors that are assigned to this NVE group
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*
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* Currently (Mar 2010) this list is used only by the route
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* export code to generate per-NVE nexthops for each route.
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*
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* The nve descriptors listed here have pointers back to
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* this nve group config structure to enable them to delete
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* their own list entries when they are closed. Consequently,
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* if an instance of this nve group config structure is deleted,
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* we must first set the nve descriptor references to it to NULL.
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*/
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struct list *nves;
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/*
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* Route filtering
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*
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* Prefix lists are segregated by afi (part of the base plist code)
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* Route-maps are not segregated
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*/
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char *plist_export_bgp_name[AFI_MAX];
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struct prefix_list *plist_export_bgp[AFI_MAX];
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char *plist_export_zebra_name[AFI_MAX];
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struct prefix_list *plist_export_zebra[AFI_MAX];
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char *plist_redist_name[ZEBRA_ROUTE_MAX][AFI_MAX];
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struct prefix_list *plist_redist[ZEBRA_ROUTE_MAX][AFI_MAX];
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char *routemap_export_bgp_name;
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struct route_map *routemap_export_bgp;
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char *routemap_export_zebra_name;
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struct route_map *routemap_export_zebra;
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char *routemap_redist_name[ZEBRA_ROUTE_MAX];
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struct route_map *routemap_redist[ZEBRA_ROUTE_MAX];
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/* for VRF type groups */
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uint32_t label;
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struct rfapi_descriptor *rfd;
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QOBJ_FIELDS;
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};
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DECLARE_QOBJ_TYPE(rfapi_nve_group_cfg);
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struct rfapi_rfg_name {
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struct rfapi_nve_group_cfg *rfg;
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char *name;
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};
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typedef enum {
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VNC_REDIST_MODE_PLAIN = 0, /* 0 = default */
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VNC_REDIST_MODE_RFG,
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VNC_REDIST_MODE_RESOLVE_NVE
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} vnc_redist_mode_t;
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struct rfapi_cfg {
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struct prefix_rd default_rd;
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uint8_t default_l2rd;
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struct ecommunity *default_rt_import_list;
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struct ecommunity *default_rt_export_list;
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uint32_t default_response_lifetime;
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#define BGP_VNC_DEFAULT_RESPONSE_LIFETIME_DEFAULT 3600
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void *default_rfp_cfg; /* rfp owned group config */
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struct list *l2_groups; /* rfapi_l2_group_cfg list */
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/* three views into the same collection of rfapi_nve_group_cfg */
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struct list *nve_groups_sequential;
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struct agg_table *nve_groups_vn[AFI_MAX];
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struct agg_table *nve_groups_un[AFI_MAX];
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/*
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* For Single VRF export to ordinary routing protocols. This is
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* the nve-group that the ordinary protocols belong to. We use it
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* to set the RD when sending unicast Zebra routes to VNC
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*/
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uint8_t redist[AFI_MAX][ZEBRA_ROUTE_MAX];
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uint32_t redist_lifetime;
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vnc_redist_mode_t redist_mode;
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/*
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* view name of BGP unicast instance that holds
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* exterior routes
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*/
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char *redist_bgp_exterior_view_name;
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struct bgp *redist_bgp_exterior_view;
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/*
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* nve group for redistribution of routes from zebra to VNC
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* (which is probably not useful for production networks)
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*/
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char *rfg_redist_name;
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struct rfapi_nve_group_cfg *rfg_redist;
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/*
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* List of NVE groups on whose behalf we will export VNC
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* routes to zebra. ((NB: it's actually a list of <struct
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* rfapi_rfg_name>)
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* This list is used when BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_BITS is
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* BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_GRP
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*/
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struct list *rfg_export_zebra_l;
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/*
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* List of NVE groups on whose behalf we will export VNC
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* routes directly to the bgp unicast RIB. (NB: it's actually
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* a list of <struct rfapi_rfg_name>)
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* This list is used when BGP_VNC_CONFIG_EXPORT_BGP_MODE_BITS is
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* BGP_VNC_CONFIG_EXPORT_BGP_MODE_GRP
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*/
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struct list *rfg_export_direct_bgp_l;
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/*
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* Exported Route filtering
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*
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* Prefix lists are segregated by afi (part of the base plist code)
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* Route-maps are not segregated
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*/
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char *plist_export_bgp_name[AFI_MAX];
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struct prefix_list *plist_export_bgp[AFI_MAX];
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char *plist_export_zebra_name[AFI_MAX];
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struct prefix_list *plist_export_zebra[AFI_MAX];
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char *routemap_export_bgp_name;
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struct route_map *routemap_export_bgp;
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char *routemap_export_zebra_name;
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struct route_map *routemap_export_zebra;
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/*
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* Redistributed route filtering (routes from other
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* protocols into VNC)
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*/
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char *plist_redist_name[ZEBRA_ROUTE_MAX][AFI_MAX];
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struct prefix_list *plist_redist[ZEBRA_ROUTE_MAX][AFI_MAX];
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char *routemap_redist_name[ZEBRA_ROUTE_MAX];
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struct route_map *routemap_redist[ZEBRA_ROUTE_MAX];
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/*
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* For importing bgp unicast routes to VNC, we encode the CE
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* (route nexthop) in a Route Origin extended community. The
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* local part (16-bit) is user-configurable.
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*/
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uint16_t resolve_nve_roo_local_admin;
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#define BGP_VNC_CONFIG_RESOLVE_NVE_ROO_LOCAL_ADMIN_DEFAULT 5226
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uint32_t flags;
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#define BGP_VNC_CONFIG_ADV_UN_METHOD_ENCAP 0x00000001
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#define BGP_VNC_CONFIG_CALLBACK_DISABLE 0x00000002
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#define BGP_VNC_CONFIG_RESPONSE_REMOVAL_DISABLE 0x00000004
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#define BGP_VNC_CONFIG_EXPORT_BGP_MODE_BITS 0x000000f0
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#define BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_BITS 0x00000f00
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#define BGP_VNC_CONFIG_EXPORT_BGP_MODE_NONE 0x00000000
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#define BGP_VNC_CONFIG_EXPORT_BGP_MODE_GRP 0x00000010
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#define BGP_VNC_CONFIG_EXPORT_BGP_MODE_RH 0x00000020 /* registerd nve */
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#define BGP_VNC_CONFIG_EXPORT_BGP_MODE_CE 0x00000040
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#define BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_NONE 0x00000000
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#define BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_GRP 0x00000100
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#define BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_RH 0x00000200
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#define BGP_VNC_CONFIG_FILTER_SELF_FROM_RSP 0x00001000
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#define BGP_VNC_CONFIG_L2RD 0x00002000
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/* Use new NVE RIB to filter callback routes */
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/* Filter querying NVE's registrations from responses */
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/* Default to updated-responses off */
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/* Default to removal-responses off */
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#define BGP_VNC_CONFIG_FLAGS_DEFAULT \
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(BGP_VNC_CONFIG_FILTER_SELF_FROM_RSP | BGP_VNC_CONFIG_CALLBACK_DISABLE \
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| BGP_VNC_CONFIG_RESPONSE_REMOVAL_DISABLE)
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struct rfapi_rfp_cfg rfp_cfg; /* rfp related configuration */
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};
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#define VNC_EXPORT_ZEBRA_GRP_ENABLED(hc) \
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(((hc)->flags & BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_BITS) \
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== BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_GRP)
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#define VNC_EXPORT_ZEBRA_RH_ENABLED(hc) \
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(((hc)->flags & BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_BITS) \
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== BGP_VNC_CONFIG_EXPORT_ZEBRA_MODE_RH)
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#define VNC_EXPORT_BGP_GRP_ENABLED(hc) \
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(((hc)->flags & BGP_VNC_CONFIG_EXPORT_BGP_MODE_BITS) \
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== BGP_VNC_CONFIG_EXPORT_BGP_MODE_GRP)
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#define VNC_EXPORT_BGP_RH_ENABLED(hc) \
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(((hc)->flags & BGP_VNC_CONFIG_EXPORT_BGP_MODE_BITS) \
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== BGP_VNC_CONFIG_EXPORT_BGP_MODE_RH)
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#define VNC_EXPORT_BGP_CE_ENABLED(hc) \
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(((hc)->flags & BGP_VNC_CONFIG_EXPORT_BGP_MODE_BITS) \
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== BGP_VNC_CONFIG_EXPORT_BGP_MODE_CE)
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void bgp_rfapi_cfg_init(void);
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struct rfapi_cfg *bgp_rfapi_cfg_new(struct rfapi_rfp_cfg *cfg);
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void bgp_rfapi_cfg_destroy(struct bgp *bgp, struct rfapi_cfg *h);
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int bgp_rfapi_cfg_write(struct vty *vty, struct bgp *bgp);
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extern int bgp_rfapi_is_vnc_configured(struct bgp *bgp);
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extern void nve_group_to_nve_list(struct rfapi_nve_group_cfg *rfg,
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struct list **nves,
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uint8_t family); /* AF_INET, AF_INET6 */
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struct rfapi_nve_group_cfg *bgp_rfapi_cfg_match_group(struct rfapi_cfg *hc,
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struct prefix *vn,
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struct prefix *un);
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struct rfapi_nve_group_cfg *
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bgp_rfapi_cfg_match_byname(struct bgp *bgp, const char *name,
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rfapi_group_cfg_type_t type); /* _MAX = any */
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extern void vnc_prefix_list_update(struct bgp *bgp);
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extern void vnc_routemap_update(struct bgp *bgp, const char *unused);
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extern void bgp_rfapi_show_summary(struct bgp *bgp, struct vty *vty);
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extern struct rfapi_cfg *bgp_rfapi_get_config(struct bgp *bgp);
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extern struct rfapi_l2_group_cfg *
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bgp_rfapi_get_group_by_lni_label(struct bgp *bgp, uint32_t logical_net_id,
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uint32_t label);
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extern struct ecommunity *
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bgp_rfapi_get_ecommunity_by_lni_label(struct bgp *bgp, uint32_t is_import,
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uint32_t logical_net_id,
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uint32_t label); /* note, 20bit label! */
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extern struct list *
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bgp_rfapi_get_labellist_by_lni_label(struct bgp *bgp, uint32_t logical_net_id,
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uint32_t label); /* note, 20bit label! */
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#endif /* ENABLE_BGP_VNC */
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#endif /* _QUAGGA_BGP_RFAPI_CFG_H */
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