[mirror_frr.git] / bgpd / bgp_route.h

/* BGP routing information base
   Copyright (C) 1996, 97, 98, 2000 Kunihiro Ishiguro

This file is part of GNU Zebra.

GNU Zebra is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation; either version 2, or (at your option) any
later version.

GNU Zebra is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License
along with GNU Zebra; see the file COPYING.  If not, write to the Free
Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
02111-1307, USA.  */

#ifndef _QUAGGA_BGP_ROUTE_H
#define _QUAGGA_BGP_ROUTE_H

#include "queue.h"
#include "bgp_table.h"

struct bgp_nexthop_cache;
struct bgp_route_evpn;

enum bgp_show_type
{
  bgp_show_type_normal,
  bgp_show_type_regexp,
  bgp_show_type_prefix_list,
  bgp_show_type_filter_list,
  bgp_show_type_route_map,
  bgp_show_type_neighbor,
  bgp_show_type_cidr_only,
  bgp_show_type_prefix_longer,
  bgp_show_type_community_all,
  bgp_show_type_community,
  bgp_show_type_community_exact,
  bgp_show_type_community_list,
  bgp_show_type_community_list_exact,
  bgp_show_type_lcommunity_all,
  bgp_show_type_lcommunity,
  bgp_show_type_lcommunity_list,
  bgp_show_type_flap_statistics,
  bgp_show_type_flap_neighbor,
  bgp_show_type_dampend_paths,
  bgp_show_type_damp_neighbor
};


#define BGP_SHOW_SCODE_HEADER "Status codes: s suppressed, d damped, "\
                              "h history, * valid, > best, = multipath,%s"\
                "              i internal, r RIB-failure, S Stale, R Removed%s"
#define BGP_SHOW_OCODE_HEADER "Origin codes: i - IGP, e - EGP, ? - incomplete%s%s"
#define BGP_SHOW_HEADER "   Network          Next Hop            Metric LocPrf Weight Path%s"

/* Ancillary information to struct bgp_info, 
 * used for uncommonly used data (aggregation, MPLS, etc.)
 * and lazily allocated to save memory.
 */
struct bgp_info_extra
{
  /* Pointer to dampening structure.  */
  struct bgp_damp_info *damp_info;

  /* This route is suppressed with aggregation.  */
  int suppress;

  /* Nexthop reachability check.  */
  u_int32_t igpmetric;

  /* MPLS label.  */
  u_char tag[3];  

#if ENABLE_BGP_VNC
  union {

      struct {
	  void *rfapi_handle;	/* export: NVE advertising this route */
	  struct list	*local_nexthops; /* optional, for static routes */
      } export;

      struct {
	  void *timer;
	  void *hme;		/* encap monitor, if this is a VPN route */
	  struct prefix_rd rd;	/* import: route's route-distinguisher */
	  u_char un_family;	/* family of cached un address, 0 if unset */
	  union {
	    struct in_addr addr4;
	    struct in6_addr addr6;
	  } un;			/* cached un address */
	  time_t create_time;
	  struct prefix aux_prefix; /* AFI_L2VPN: the IP addr, if family set */
      } import;

  } vnc;
#endif
};

struct bgp_info
{
  /* For linked list. */
  struct bgp_info *next;
  struct bgp_info *prev;

  /* For nexthop linked list */
  LIST_ENTRY(bgp_info) nh_thread;

  /* Back pointer to the prefix node */
  struct bgp_node *net;

  /* Back pointer to the nexthop structure */
  struct bgp_nexthop_cache *nexthop;

  /* Peer structure.  */
  struct peer *peer;

  /* Attribute structure.  */
  struct attr *attr;
  
  /* Extra information */
  struct bgp_info_extra *extra;
  

  /* Multipath information */
  struct bgp_info_mpath *mpath;

  /* Uptime.  */
  time_t uptime;

  /* reference count */
  int lock;
  
  /* BGP information status.  */
  u_int16_t flags;
#define BGP_INFO_IGP_CHANGED    (1 << 0)
#define BGP_INFO_DAMPED         (1 << 1)
#define BGP_INFO_HISTORY        (1 << 2)
#define BGP_INFO_SELECTED       (1 << 3)
#define BGP_INFO_VALID          (1 << 4)
#define BGP_INFO_ATTR_CHANGED   (1 << 5)
#define BGP_INFO_DMED_CHECK     (1 << 6)
#define BGP_INFO_DMED_SELECTED  (1 << 7)
#define BGP_INFO_STALE          (1 << 8)
#define BGP_INFO_REMOVED        (1 << 9)
#define BGP_INFO_COUNTED	(1 << 10)
#define BGP_INFO_MULTIPATH      (1 << 11)
#define BGP_INFO_MULTIPATH_CHG  (1 << 12)

  /* BGP route type.  This can be static, RIP, OSPF, BGP etc.  */
  u_char type;

  /* When above type is BGP.  This sub type specify BGP sub type
     information.  */
  u_char sub_type;
#define BGP_ROUTE_NORMAL       0
#define BGP_ROUTE_STATIC       1
#define BGP_ROUTE_AGGREGATE    2
#define BGP_ROUTE_REDISTRIBUTE 3 
#ifdef ENABLE_BGP_VNC
# define BGP_ROUTE_RFP          4 
#endif

  u_short instance;

  /* Addpath identifiers */
  u_int32_t addpath_rx_id;
  u_int32_t addpath_tx_id;

};

/* BGP static route configuration. */
struct bgp_static
{
  /* Backdoor configuration.  */
  int backdoor;

  /* Import check status.  */
  u_char valid;

  /* IGP metric. */
  u_int32_t igpmetric;

  /* IGP nexthop. */
  struct in_addr igpnexthop;

  /* Atomic set reference count (ie cause of pathlimit) */
  u_int32_t atomic;
  
  /* BGP redistribute route-map.  */
  struct
  {
    char *name;
    struct route_map *map;
  } rmap;

  /* Route Distinguisher */
  struct prefix_rd     prd;

  /* MPLS label.  */
  u_char tag[3];

  /* EVPN */
  struct eth_segment_id *eth_s_id;
  struct ethaddr *router_mac;
  uint16_t   encap_tunneltype;
  struct prefix gatewayIp;
};

#define BGP_NEXTHOP_AFI_FROM_NHLEN(nhlen) \
  ((nhlen) < IPV4_MAX_BYTELEN  ? 0 : \
   ((nhlen) < IPV6_MAX_BYTELEN ? AFI_IP : AFI_IP6))

#define BGP_ATTR_NEXTHOP_AFI_IP6(attr) \
  (! CHECK_FLAG (attr->flag, ATTR_FLAG_BIT (BGP_ATTR_NEXT_HOP)) && \
   (attr)->extra && ((attr)->extra->mp_nexthop_len == 16 || \
    (attr)->extra->mp_nexthop_len == 32))
#define BGP_INFO_COUNTABLE(BI) \
  (! CHECK_FLAG ((BI)->flags, BGP_INFO_HISTORY) \
   && ! CHECK_FLAG ((BI)->flags, BGP_INFO_REMOVED))

/* Flags which indicate a route is unuseable in some form */
#define BGP_INFO_UNUSEABLE \
  (BGP_INFO_HISTORY|BGP_INFO_DAMPED|BGP_INFO_REMOVED)
/* Macro to check BGP information is alive or not.  Sadly,
 * not equivalent to just checking previous, because of the
 * sense of the additional VALID flag.
 */
#define BGP_INFO_HOLDDOWN(BI) \
  (! CHECK_FLAG ((BI)->flags, BGP_INFO_VALID) \
   || CHECK_FLAG ((BI)->flags, BGP_INFO_UNUSEABLE))

#define DISTRIBUTE_IN_NAME(F)   ((F)->dlist[FILTER_IN].name)
#define DISTRIBUTE_IN(F)        ((F)->dlist[FILTER_IN].alist)
#define DISTRIBUTE_OUT_NAME(F)  ((F)->dlist[FILTER_OUT].name)
#define DISTRIBUTE_OUT(F)       ((F)->dlist[FILTER_OUT].alist)

#define PREFIX_LIST_IN_NAME(F)  ((F)->plist[FILTER_IN].name)
#define PREFIX_LIST_IN(F)       ((F)->plist[FILTER_IN].plist)
#define PREFIX_LIST_OUT_NAME(F) ((F)->plist[FILTER_OUT].name)
#define PREFIX_LIST_OUT(F)      ((F)->plist[FILTER_OUT].plist)

#define FILTER_LIST_IN_NAME(F)  ((F)->aslist[FILTER_IN].name)
#define FILTER_LIST_IN(F)       ((F)->aslist[FILTER_IN].aslist)
#define FILTER_LIST_OUT_NAME(F) ((F)->aslist[FILTER_OUT].name)
#define FILTER_LIST_OUT(F)      ((F)->aslist[FILTER_OUT].aslist)

#define ROUTE_MAP_IN_NAME(F)    ((F)->map[RMAP_IN].name)
#define ROUTE_MAP_IN(F)         ((F)->map[RMAP_IN].map)
#define ROUTE_MAP_OUT_NAME(F)   ((F)->map[RMAP_OUT].name)
#define ROUTE_MAP_OUT(F)        ((F)->map[RMAP_OUT].map)

#define UNSUPPRESS_MAP_NAME(F)  ((F)->usmap.name)
#define UNSUPPRESS_MAP(F)       ((F)->usmap.map)

/* path PREFIX (addpath rxid NUMBER) */
#define PATH_ADDPATH_STR_BUFFER PREFIX2STR_BUFFER + 32

enum bgp_path_type
{
  BGP_PATH_ALL,
  BGP_PATH_BESTPATH,
  BGP_PATH_MULTIPATH
};

static inline void
bgp_bump_version (struct bgp_node *node)
{
  node->version = bgp_table_next_version(bgp_node_table(node));
}

/* Prototypes. */
extern void bgp_process_queue_init (void);
extern void bgp_route_init (void);
extern void bgp_route_finish (void);
extern void bgp_cleanup_routes (struct bgp *);
extern void bgp_announce_route (struct peer *, afi_t, safi_t);
extern void bgp_stop_announce_route_timer(struct peer_af *paf);
extern void bgp_announce_route_all (struct peer *);
extern void bgp_default_originate (struct peer *, afi_t, safi_t, int);
extern void bgp_soft_reconfig_in (struct peer *, afi_t, safi_t);
extern void bgp_clear_route (struct peer *, afi_t, safi_t);
extern void bgp_clear_route_all (struct peer *);
extern void bgp_clear_adj_in (struct peer *, afi_t, safi_t);
extern void bgp_clear_stale_route (struct peer *, afi_t, safi_t);

extern struct bgp_node *bgp_afi_node_get (struct bgp_table *table, afi_t afi,
                                          safi_t safi, struct prefix *p,
                                          struct prefix_rd *prd);
extern struct bgp_info *bgp_info_lock (struct bgp_info *);
extern struct bgp_info *bgp_info_unlock (struct bgp_info *);
extern void bgp_info_add (struct bgp_node *rn, struct bgp_info *ri);
extern void bgp_info_delete (struct bgp_node *rn, struct bgp_info *ri);
extern struct bgp_info_extra *bgp_info_extra_get (struct bgp_info *);
extern void bgp_info_set_flag (struct bgp_node *, struct bgp_info *, u_int32_t);
extern void bgp_info_unset_flag (struct bgp_node *, struct bgp_info *, u_int32_t);
extern void bgp_info_path_with_addpath_rx_str (struct bgp_info *ri, char *buf);

extern int bgp_nlri_parse_ip (struct peer *, struct attr *, struct bgp_nlri *);

extern int bgp_maximum_prefix_overflow (struct peer *, afi_t, safi_t, int);

extern void bgp_redistribute_add (struct bgp *, struct prefix *, const struct in_addr *,
				  const struct in6_addr *, unsigned int ifindex,
				  u_int32_t, u_char, u_short, route_tag_t);
extern void bgp_redistribute_delete (struct bgp *, struct prefix *, u_char, u_short);
extern void bgp_redistribute_withdraw (struct bgp *, afi_t, int, u_short);

extern void bgp_static_add (struct bgp *);
extern void bgp_static_delete (struct bgp *);
extern void bgp_static_redo_import_check (struct bgp *);
extern void bgp_purge_static_redist_routes (struct bgp *bgp);
extern void bgp_static_update (struct bgp *, struct prefix *, struct bgp_static *,
			afi_t, safi_t);
extern void bgp_static_withdraw (struct bgp *, struct prefix *, afi_t, safi_t);
                     
extern int bgp_static_set_safi (safi_t safi, struct vty *vty, const char *,
                                const char *, const char *, const char *,
                                int, const char *, const char *, const char *, const char *);

extern int bgp_static_unset_safi (safi_t safi, struct vty *, const char *,
                                  const char *, const char *,
                                  int, const char *, const char *, const char *);

/* this is primarily for MPLS-VPN */
extern int bgp_update (struct peer *, struct prefix *, u_int32_t, struct attr *,
		       afi_t, safi_t, int, int, struct prefix_rd *,
		       u_char *, int, struct bgp_route_evpn *);
extern int bgp_withdraw (struct peer *, struct prefix *, u_int32_t, struct attr *,
			 afi_t, safi_t, int, int, struct prefix_rd *, u_char *, 
                         struct bgp_route_evpn *);

/* for bgp_nexthop and bgp_damp */
extern void bgp_process (struct bgp *, struct bgp_node *, afi_t, safi_t);

/*
 * Add an end-of-initial-update marker to the process queue. This is just a
 * queue element with NULL bgp node.
 */
extern void bgp_add_eoiu_mark (struct bgp *);
extern int bgp_config_write_table_map (struct vty *, struct bgp *, afi_t, safi_t,
                                       int *);
extern int bgp_config_write_network (struct vty *, struct bgp *, afi_t, safi_t, int *);
extern int bgp_config_write_distance (struct vty *, struct bgp *, afi_t, safi_t, int *);

extern void bgp_aggregate_increment (struct bgp *, struct prefix *, struct bgp_info *,
			      afi_t, safi_t);
extern void bgp_aggregate_decrement (struct bgp *, struct prefix *, struct bgp_info *,
			      afi_t, safi_t);

extern u_char bgp_distance_apply (struct prefix *, struct bgp_info *, afi_t, safi_t, struct bgp *);

extern afi_t bgp_node_afi (struct vty *);
extern safi_t bgp_node_safi (struct vty *);

extern void route_vty_out (struct vty *, struct prefix *, struct bgp_info *, int, safi_t, json_object *);
extern void route_vty_out_tag (struct vty *, struct prefix *, struct bgp_info *, int, safi_t, json_object *);
extern void route_vty_out_tmp (struct vty *, struct prefix *, struct attr *, safi_t, u_char, json_object *);
extern void
route_vty_out_overlay (struct vty *vty, struct prefix *p,
                       struct bgp_info *binfo, int display, json_object *json);

extern int
subgroup_process_announce_selected (struct update_subgroup *subgrp,
				    struct bgp_info *selected,
                                    struct bgp_node *rn,
                                    u_int32_t addpath_tx_id);

extern int subgroup_announce_check(struct bgp_info *ri,
				   struct update_subgroup *subgrp,
				   struct prefix *p, struct attr *attr);

extern void bgp_peer_clear_node_queue_drain_immediate (struct peer *peer);
extern void bgp_process_queues_drain_immediate (void);

/* for encap/vpn */
extern struct bgp_node *
bgp_afi_node_get (struct bgp_table *, afi_t , safi_t , struct prefix *,
 		  struct prefix_rd *);
extern struct bgp_info *bgp_info_new (void);
extern void bgp_info_restore (struct bgp_node *, struct bgp_info *);

extern int bgp_info_cmp_compatible (struct bgp *, struct bgp_info *,
                                    struct bgp_info *, afi_t, safi_t );

#endif /* _QUAGGA_BGP_ROUTE_H */
Commit	Line	Data
718e3744	1	/* BGP routing information base
	2	Copyright (C) 1996, 97, 98, 2000 Kunihiro Ishiguro
	3
	4	This file is part of GNU Zebra.
	5
	6	GNU Zebra is free software; you can redistribute it and/or modify it
	7	under the terms of the GNU General Public License as published by the
	8	Free Software Foundation; either version 2, or (at your option) any
	9	later version.
	10
	11	GNU Zebra is distributed in the hope that it will be useful, but
	12	WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with GNU Zebra; see the file COPYING. If not, write to the Free
	18	Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
	19	02111-1307, USA. */
	20
00d252cb	21	#ifndef _QUAGGA_BGP_ROUTE_H
	22	#define _QUAGGA_BGP_ROUTE_H
	23
fb018d25	24	#include "queue.h"
200df115	25	#include "bgp_table.h"
200df115	26
fb018d25	27	struct bgp_nexthop_cache;
7ef5a232	28	struct bgp_route_evpn;
fb018d25	29
b2f0fa55 PG	30	enum bgp_show_type
	31	{
	32	bgp_show_type_normal,
	33	bgp_show_type_regexp,
	34	bgp_show_type_prefix_list,
	35	bgp_show_type_filter_list,
	36	bgp_show_type_route_map,
	37	bgp_show_type_neighbor,
	38	bgp_show_type_cidr_only,
	39	bgp_show_type_prefix_longer,
	40	bgp_show_type_community_all,
	41	bgp_show_type_community,
	42	bgp_show_type_community_exact,
	43	bgp_show_type_community_list,
	44	bgp_show_type_community_list_exact,
c016b6c7 DS	45	bgp_show_type_lcommunity_all,
	46	bgp_show_type_lcommunity,
	47	bgp_show_type_lcommunity_list,
b2f0fa55 PG	48	bgp_show_type_flap_statistics,
	49	bgp_show_type_flap_neighbor,
	50	bgp_show_type_dampend_paths,
	51	bgp_show_type_damp_neighbor
	52	};
	53
	54
3f9c7369 DS	55	#define BGP_SHOW_SCODE_HEADER "Status codes: s suppressed, d damped, "\
	56	"h history, * valid, > best, = multipath,%s"\
	57	" i internal, r RIB-failure, S Stale, R Removed%s"
	58	#define BGP_SHOW_OCODE_HEADER "Origin codes: i - IGP, e - EGP, ? - incomplete%s%s"
	59	#define BGP_SHOW_HEADER " Network Next Hop Metric LocPrf Weight Path%s"
	60
fb982c25 PJ	61	/* Ancillary information to struct bgp_info,
	62	* used for uncommonly used data (aggregation, MPLS, etc.)
	63	* and lazily allocated to save memory.
	64	*/
	65	struct bgp_info_extra
	66	{
	67	/* Pointer to dampening structure. */
	68	struct bgp_damp_info *damp_info;
	69
	70	/* This route is suppressed with aggregation. */
	71	int suppress;
	72
	73	/* Nexthop reachability check. */
	74	u_int32_t igpmetric;
	75
	76	/* MPLS label. */
	77	u_char tag[3];
65efcfce LB	78
	79	#if ENABLE_BGP_VNC
	80	union {
	81
	82	struct {
	83	void rfapi_handle; / export: NVE advertising this route */
	84	struct list local_nexthops; / optional, for static routes */
	85	} export;
	86
	87	struct {
	88	void *timer;
	89	void hme; / encap monitor, if this is a VPN route */
	90	struct prefix_rd rd; /* import: route's route-distinguisher */
	91	u_char un_family; /* family of cached un address, 0 if unset */
	92	union {
	93	struct in_addr addr4;
	94	struct in6_addr addr6;
	95	} un; /* cached un address */
	96	time_t create_time;
5ef6cd69	97	struct prefix aux_prefix; /* AFI_L2VPN: the IP addr, if family set */
65efcfce LB	98	} import;
	99
	100	} vnc;
	101	#endif
fb982c25 PJ	102	};
fb982c25 PJ	103
718e3744	104	struct bgp_info
	105	{
	106	/* For linked list. */
	107	struct bgp_info *next;
	108	struct bgp_info *prev;
fb018d25 DS	109
	110	/* For nexthop linked list */
	111	LIST_ENTRY(bgp_info) nh_thread;
	112
	113	/* Back pointer to the prefix node */
	114	struct bgp_node *net;
	115
	116	/* Back pointer to the nexthop structure */
	117	struct bgp_nexthop_cache *nexthop;
	118
cbdfbaa5 PJ	119	/* Peer structure. */
	120	struct peer *peer;
	121
	122	/* Attribute structure. */
	123	struct attr *attr;
fb982c25 PJ	124
	125	/* Extra information */
	126	struct bgp_info_extra *extra;
	127
de8d5dff JB	128
	129	/* Multipath information */
	130	struct bgp_info_mpath *mpath;
	131
cbdfbaa5 PJ	132	/* Uptime. */
	133	time_t uptime;
	134
200df115	135	/* reference count */
228da428	136	int lock;
200df115	137
718e3744	138	/* BGP information status. */
93406d87	139	u_int16_t flags;
718e3744	140	#define BGP_INFO_IGP_CHANGED (1 << 0)
	141	#define BGP_INFO_DAMPED (1 << 1)
	142	#define BGP_INFO_HISTORY (1 << 2)
	143	#define BGP_INFO_SELECTED (1 << 3)
	144	#define BGP_INFO_VALID (1 << 4)
	145	#define BGP_INFO_ATTR_CHANGED (1 << 5)
	146	#define BGP_INFO_DMED_CHECK (1 << 6)
	147	#define BGP_INFO_DMED_SELECTED (1 << 7)
93406d87	148	#define BGP_INFO_STALE (1 << 8)
b40d939b	149	#define BGP_INFO_REMOVED (1 << 9)
902212c3	150	#define BGP_INFO_COUNTED (1 << 10)
de8d5dff JB	151	#define BGP_INFO_MULTIPATH (1 << 11)
de8d5dff JB	152	#define BGP_INFO_MULTIPATH_CHG (1 << 12)
718e3744	153
cbdfbaa5 PJ	154	/* BGP route type. This can be static, RIP, OSPF, BGP etc. */
	155	u_char type;
	156
	157	/* When above type is BGP. This sub type specify BGP sub type
	158	information. */
	159	u_char sub_type;
	160	#define BGP_ROUTE_NORMAL 0
	161	#define BGP_ROUTE_STATIC 1
	162	#define BGP_ROUTE_AGGREGATE 2
	163	#define BGP_ROUTE_REDISTRIBUTE 3
65efcfce LB	164	#ifdef ENABLE_BGP_VNC
	165	# define BGP_ROUTE_RFP 4
	166	#endif
7c8ff89e DS	167
	168	u_short instance;
	169
a82478b9 DS	170	/* Addpath identifiers */
	171	u_int32_t addpath_rx_id;
	172	u_int32_t addpath_tx_id;
	173
718e3744	174	};
	175
	176	/* BGP static route configuration. */
	177	struct bgp_static
	178	{
	179	/* Backdoor configuration. */
	180	int backdoor;
	181
	182	/* Import check status. */
	183	u_char valid;
	184
	185	/* IGP metric. */
	186	u_int32_t igpmetric;
	187
	188	/* IGP nexthop. */
	189	struct in_addr igpnexthop;
	190
41367172 PJ	191	/* Atomic set reference count (ie cause of pathlimit) */
	192	u_int32_t atomic;
	193
718e3744	194	/* BGP redistribute route-map. */
	195	struct
	196	{
	197	char *name;
	198	struct route_map *map;
	199	} rmap;
	200
137446f9 LB	201	/* Route Distinguisher */
	202	struct prefix_rd prd;
	203
718e3744	204	/* MPLS label. */
718e3744	205	u_char tag[3];
684a7227 PG	206
	207	/* EVPN */
	208	struct eth_segment_id *eth_s_id;
31689a53	209	struct ethaddr *router_mac;
aee875b5	210	uint16_t encap_tunneltype;
a2dac1ef	211	struct prefix gatewayIp;
718e3744	212	};
718e3744	213
fe3ca08f LB	214	#define BGP_NEXTHOP_AFI_FROM_NHLEN(nhlen) \
	215	((nhlen) < IPV4_MAX_BYTELEN ? 0 : \
	216	((nhlen) < IPV6_MAX_BYTELEN ? AFI_IP : AFI_IP6))
	217
8a92a8a0 DS	218	#define BGP_ATTR_NEXTHOP_AFI_IP6(attr) \
	219	(! CHECK_FLAG (attr->flag, ATTR_FLAG_BIT (BGP_ATTR_NEXT_HOP)) && \
	220	(attr)->extra && ((attr)->extra->mp_nexthop_len == 16 \|\| \
	221	(attr)->extra->mp_nexthop_len == 32))
80e0ad24 DS	222	#define BGP_INFO_COUNTABLE(BI) \
	223	(! CHECK_FLAG ((BI)->flags, BGP_INFO_HISTORY) \
	224	&& ! CHECK_FLAG ((BI)->flags, BGP_INFO_REMOVED))
	225
1a392d46 PJ	226	/* Flags which indicate a route is unuseable in some form */
	227	#define BGP_INFO_UNUSEABLE \
	228	(BGP_INFO_HISTORY\|BGP_INFO_DAMPED\|BGP_INFO_REMOVED)
	229	/* Macro to check BGP information is alive or not. Sadly,
	230	* not equivalent to just checking previous, because of the
	231	* sense of the additional VALID flag.
	232	*/
	233	#define BGP_INFO_HOLDDOWN(BI) \
	234	(! CHECK_FLAG ((BI)->flags, BGP_INFO_VALID) \
	235	\|\| CHECK_FLAG ((BI)->flags, BGP_INFO_UNUSEABLE))
	236
718e3744	237	#define DISTRIBUTE_IN_NAME(F) ((F)->dlist[FILTER_IN].name)
	238	#define DISTRIBUTE_IN(F) ((F)->dlist[FILTER_IN].alist)
	239	#define DISTRIBUTE_OUT_NAME(F) ((F)->dlist[FILTER_OUT].name)
	240	#define DISTRIBUTE_OUT(F) ((F)->dlist[FILTER_OUT].alist)
	241
	242	#define PREFIX_LIST_IN_NAME(F) ((F)->plist[FILTER_IN].name)
	243	#define PREFIX_LIST_IN(F) ((F)->plist[FILTER_IN].plist)
	244	#define PREFIX_LIST_OUT_NAME(F) ((F)->plist[FILTER_OUT].name)
	245	#define PREFIX_LIST_OUT(F) ((F)->plist[FILTER_OUT].plist)
	246
	247	#define FILTER_LIST_IN_NAME(F) ((F)->aslist[FILTER_IN].name)
	248	#define FILTER_LIST_IN(F) ((F)->aslist[FILTER_IN].aslist)
	249	#define FILTER_LIST_OUT_NAME(F) ((F)->aslist[FILTER_OUT].name)
	250	#define FILTER_LIST_OUT(F) ((F)->aslist[FILTER_OUT].aslist)
	251
fee0f4c6	252	#define ROUTE_MAP_IN_NAME(F) ((F)->map[RMAP_IN].name)
	253	#define ROUTE_MAP_IN(F) ((F)->map[RMAP_IN].map)
	254	#define ROUTE_MAP_OUT_NAME(F) ((F)->map[RMAP_OUT].name)
	255	#define ROUTE_MAP_OUT(F) ((F)->map[RMAP_OUT].map)
	256
718e3744	257	#define UNSUPPRESS_MAP_NAME(F) ((F)->usmap.name)
	258	#define UNSUPPRESS_MAP(F) ((F)->usmap.map)
	259
2ec1e66f DW	260	/* path PREFIX (addpath rxid NUMBER) */
	261	#define PATH_ADDPATH_STR_BUFFER PREFIX2STR_BUFFER + 32
	262
4092b06c DS	263	enum bgp_path_type
	264	{
	265	BGP_PATH_ALL,
	266	BGP_PATH_BESTPATH,
	267	BGP_PATH_MULTIPATH
	268	};
	269
3f9c7369 DS	270	static inline void
	271	bgp_bump_version (struct bgp_node *node)
	272	{
	273	node->version = bgp_table_next_version(bgp_node_table(node));
	274	}
	275
718e3744	276	/* Prototypes. */
f188f2c4	277	extern void bgp_process_queue_init (void);
94f2b392	278	extern void bgp_route_init (void);
228da428	279	extern void bgp_route_finish (void);
0c6262ed	280	extern void bgp_cleanup_routes (struct bgp *);
94f2b392	281	extern void bgp_announce_route (struct peer *, afi_t, safi_t);
3f9c7369	282	extern void bgp_stop_announce_route_timer(struct peer_af *paf);
94f2b392	283	extern void bgp_announce_route_all (struct peer *);
	284	extern void bgp_default_originate (struct peer *, afi_t, safi_t, int);
	285	extern void bgp_soft_reconfig_in (struct peer *, afi_t, safi_t);
2a3d5731	286	extern void bgp_clear_route (struct peer *, afi_t, safi_t);
94f2b392	287	extern void bgp_clear_route_all (struct peer *);
	288	extern void bgp_clear_adj_in (struct peer *, afi_t, safi_t);
	289	extern void bgp_clear_stale_route (struct peer *, afi_t, safi_t);
718e3744	290
4125bb67 DS	291	extern struct bgp_node bgp_afi_node_get (struct bgp_table table, afi_t afi,
	292	safi_t safi, struct prefix *p,
	293	struct prefix_rd *prd);
200df115	294	extern struct bgp_info bgp_info_lock (struct bgp_info );
	295	extern struct bgp_info bgp_info_unlock (struct bgp_info );
	296	extern void bgp_info_add (struct bgp_node rn, struct bgp_info ri);
	297	extern void bgp_info_delete (struct bgp_node rn, struct bgp_info ri);
fb982c25	298	extern struct bgp_info_extra bgp_info_extra_get (struct bgp_info );
1a392d46 PJ	299	extern void bgp_info_set_flag (struct bgp_node , struct bgp_info , u_int32_t);
1a392d46 PJ	300	extern void bgp_info_unset_flag (struct bgp_node , struct bgp_info , u_int32_t);
2ec1e66f	301	extern void bgp_info_path_with_addpath_rx_str (struct bgp_info ri, char buf);
200df115	302
96e52474	303	extern int bgp_nlri_parse_ip (struct peer , struct attr , struct bgp_nlri *);
718e3744	304
94f2b392	305	extern int bgp_maximum_prefix_overflow (struct peer *, afi_t, safi_t, int);
718e3744	306
6aeb9e78	307	extern void bgp_redistribute_add (struct bgp , struct prefix , const struct in_addr *,
bc413143	308	const struct in6_addr *, unsigned int ifindex,
dc9ffce8	309	u_int32_t, u_char, u_short, route_tag_t);
6aeb9e78	310	extern void bgp_redistribute_delete (struct bgp , struct prefix , u_char, u_short);
7c8ff89e	311	extern void bgp_redistribute_withdraw (struct bgp *, afi_t, int, u_short);
718e3744	312
6aeb9e78	313	extern void bgp_static_add (struct bgp *);
94f2b392	314	extern void bgp_static_delete (struct bgp *);
078430f6	315	extern void bgp_static_redo_import_check (struct bgp *);
ad4cbda1	316	extern void bgp_purge_static_redist_routes (struct bgp *bgp);
94f2b392	317	extern void bgp_static_update (struct bgp , struct prefix , struct bgp_static *,
718e3744	318	afi_t, safi_t);
94f2b392	319	extern void bgp_static_withdraw (struct bgp , struct prefix , afi_t, safi_t);
718e3744	320
137446f9	321	extern int bgp_static_set_safi (safi_t safi, struct vty vty, const char ,
3da6fcd5 PG	322	const char , const char , const char *,
3da6fcd5 PG	323	int, const char , const char , const char , const char );
718e3744	324
137446f9	325	extern int bgp_static_unset_safi (safi_t safi, struct vty , const char ,
3da6fcd5 PG	326	const char , const char ,
3da6fcd5 PG	327	int, const char , const char , const char *);
718e3744	328
94f2b392	329	/* this is primarily for MPLS-VPN */
a82478b9	330	extern int bgp_update (struct peer , struct prefix , u_int32_t, struct attr *,
7ef5a232 PG	331	afi_t, safi_t, int, int, struct prefix_rd *,
7ef5a232 PG	332	u_char , int, struct bgp_route_evpn );
a82478b9	333	extern int bgp_withdraw (struct peer , struct prefix , u_int32_t, struct attr *,
7ef5a232 PG	334	afi_t, safi_t, int, int, struct prefix_rd , u_char ,
7ef5a232 PG	335	struct bgp_route_evpn *);
718e3744	336
94f2b392	337	/* for bgp_nexthop and bgp_damp */
94f2b392	338	extern void bgp_process (struct bgp , struct bgp_node , afi_t, safi_t);
cb1faec9 DS	339
	340	/*
	341	* Add an end-of-initial-update marker to the process queue. This is just a
	342	* queue element with NULL bgp node.
	343	*/
2a3d5731	344	extern void bgp_add_eoiu_mark (struct bgp *);
73ac8160 DS	345	extern int bgp_config_write_table_map (struct vty , struct bgp , afi_t, safi_t,
73ac8160 DS	346	int *);
94f2b392	347	extern int bgp_config_write_network (struct vty , struct bgp , afi_t, safi_t, int *);
734b349e	348	extern int bgp_config_write_distance (struct vty , struct bgp , afi_t, safi_t, int *);
94f2b392	349
94f2b392	350	extern void bgp_aggregate_increment (struct bgp , struct prefix , struct bgp_info *,
718e3744	351	afi_t, safi_t);
94f2b392	352	extern void bgp_aggregate_decrement (struct bgp , struct prefix , struct bgp_info *,
718e3744	353	afi_t, safi_t);
718e3744	354
734b349e	355	extern u_char bgp_distance_apply (struct prefix , struct bgp_info , afi_t, safi_t, struct bgp *);
718e3744	356
94f2b392	357	extern afi_t bgp_node_afi (struct vty *);
94f2b392	358	extern safi_t bgp_node_safi (struct vty *);
5a646650	359
b05a1c8b	360	extern void route_vty_out (struct vty , struct prefix , struct bgp_info , int, safi_t, json_object );
856ca177 MS	361	extern void route_vty_out_tag (struct vty , struct prefix , struct bgp_info , int, safi_t, json_object );
856ca177 MS	362	extern void route_vty_out_tmp (struct vty , struct prefix , struct attr , safi_t, u_char, json_object );
784d3a42 PG	363	extern void
	364	route_vty_out_overlay (struct vty vty, struct prefix p,
	365	struct bgp_info binfo, int display, json_object json);
00d252cb	366
3f9c7369 DS	367	extern int
	368	subgroup_process_announce_selected (struct update_subgroup *subgrp,
	369	struct bgp_info *selected,
adbac85e DW	370	struct bgp_node *rn,
adbac85e DW	371	u_int32_t addpath_tx_id);
3f9c7369 DS	372
	373	extern int subgroup_announce_check(struct bgp_info *ri,
	374	struct update_subgroup *subgrp,
	375	struct prefix p, struct attr attr);
	376
bb86c601 LB	377	extern void bgp_peer_clear_node_queue_drain_immediate (struct peer *peer);
	378	extern void bgp_process_queues_drain_immediate (void);
	379
65efcfce LB	380	/* for encap/vpn */
	381	extern struct bgp_node *
	382	bgp_afi_node_get (struct bgp_table , afi_t , safi_t , struct prefix ,
	383	struct prefix_rd *);
	384	extern struct bgp_info *bgp_info_new (void);
	385	extern void bgp_info_restore (struct bgp_node , struct bgp_info );
	386
	387	extern int bgp_info_cmp_compatible (struct bgp , struct bgp_info ,
	388	struct bgp_info *, afi_t, safi_t );
	389
00d252cb	390	#endif /* _QUAGGA_BGP_ROUTE_H */