/* BGP message definition header.
Copyright (C) 1996, 97, 98, 99, 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_BGPD_H
#define _QUAGGA_BGPD_H
/* For union sockunion. */
#include "sockunion.h"
/* Typedef BGP specific types. */
typedef u_int32_t as_t;
typedef u_int16_t as16_t; /* we may still encounter 16 Bit asnums */
typedef u_int16_t bgp_size_t;
/* BGP master for system wide configurations and variables. */
struct bgp_master
{
/* BGP instance list. */
struct list *bgp;
/* BGP thread master. */
struct thread_master *master;
/* work queues */
struct work_queue *process_main_queue;
struct work_queue *process_rsclient_queue;
/* Listening sockets */
struct list *listen_sockets;
/* BGP port number. */
u_int16_t port;
/* Listener address */
char *address;
/* BGP start time. */
time_t start_time;
/* Various BGP global configuration. */
u_char options;
#define BGP_OPT_NO_FIB (1 << 0)
#define BGP_OPT_MULTIPLE_INSTANCE (1 << 1)
#define BGP_OPT_CONFIG_CISCO (1 << 2)
#define BGP_OPT_NO_LISTEN (1 << 3)
};
/* BGP instance structure. */
struct bgp
{
/* AS number of this BGP instance. */
as_t as;
/* Name of this BGP instance. */
char *name;
/* Reference count to allow peer_delete to finish after bgp_delete */
int lock;
/* Self peer. */
struct peer *peer_self;
/* BGP peer. */
struct list *peer;
/* BGP peer group. */
struct list *group;
/* BGP route-server-clients. */
struct list *rsclient;
/* BGP configuration. */
u_int16_t config;
#define BGP_CONFIG_ROUTER_ID (1 << 0)
#define BGP_CONFIG_CLUSTER_ID (1 << 1)
#define BGP_CONFIG_CONFEDERATION (1 << 2)
/* BGP router identifier. */
struct in_addr router_id;
struct in_addr router_id_static;
/* BGP route reflector cluster ID. */
struct in_addr cluster_id;
/* BGP confederation information. */
as_t confed_id;
as_t *confed_peers;
int confed_peers_cnt;
struct thread *t_startup;
/* BGP flags. */
u_int16_t flags;
#define BGP_FLAG_ALWAYS_COMPARE_MED (1 << 0)
#define BGP_FLAG_DETERMINISTIC_MED (1 << 1)
#define BGP_FLAG_MED_MISSING_AS_WORST (1 << 2)
#define BGP_FLAG_MED_CONFED (1 << 3)
#define BGP_FLAG_NO_DEFAULT_IPV4 (1 << 4)
#define BGP_FLAG_NO_CLIENT_TO_CLIENT (1 << 5)
#define BGP_FLAG_ENFORCE_FIRST_AS (1 << 6)
#define BGP_FLAG_COMPARE_ROUTER_ID (1 << 7)
#define BGP_FLAG_ASPATH_IGNORE (1 << 8)
#define BGP_FLAG_IMPORT_CHECK (1 << 9)
#define BGP_FLAG_NO_FAST_EXT_FAILOVER (1 << 10)
#define BGP_FLAG_LOG_NEIGHBOR_CHANGES (1 << 11)
#define BGP_FLAG_GRACEFUL_RESTART (1 << 12)
#define BGP_FLAG_ASPATH_CONFED (1 << 13)
#define BGP_FLAG_ASPATH_MULTIPATH_RELAX (1 << 14)
#define BGP_FLAG_DELETING (1 << 15)
/* BGP Per AF flags */
u_int16_t af_flags[AFI_MAX][SAFI_MAX];
#define BGP_CONFIG_DAMPENING (1 << 0)
/* Static route configuration. */
struct bgp_table *route[AFI_MAX][SAFI_MAX];
/* Aggregate address configuration. */
struct bgp_table *aggregate[AFI_MAX][SAFI_MAX];
/* BGP routing information base. */
struct bgp_table *rib[AFI_MAX][SAFI_MAX];
/* BGP redistribute configuration. */
u_char redist[AFI_MAX][ZEBRA_ROUTE_MAX];
/* BGP redistribute metric configuration. */
u_char redist_metric_flag[AFI_MAX][ZEBRA_ROUTE_MAX];
u_int32_t redist_metric[AFI_MAX][ZEBRA_ROUTE_MAX];
/* BGP redistribute route-map. */
struct
{
char *name;
struct route_map *map;
} rmap[AFI_MAX][ZEBRA_ROUTE_MAX];
/* BGP distance configuration. */
u_char distance_ebgp;
u_char distance_ibgp;
u_char distance_local;
/* BGP default local-preference. */
u_int32_t default_local_pref;
/* BGP default timer. */
u_int32_t default_holdtime;
u_int32_t default_keepalive;
/* BGP graceful restart */
u_int32_t restart_time;
u_int32_t stalepath_time;
/* Maximum-paths configuration */
struct bgp_maxpaths_cfg {
u_int16_t maxpaths_ebgp;
u_int16_t maxpaths_ibgp;
} maxpaths[AFI_MAX][SAFI_MAX];
};
/* BGP peer-group support. */
struct peer_group
{
/* Name of the peer-group. */
char *name;
/* Pointer to BGP. */
struct bgp *bgp;
/* Peer-group client list. */
struct list *peer;
/* Peer-group config */
struct peer *conf;
};
/* BGP Notify message format. */
struct bgp_notify
{
u_char code;
u_char subcode;
char *data;
bgp_size_t length;
};
/* Next hop self address. */
struct bgp_nexthop
{
struct interface *ifp;
struct in_addr v4;
struct in6_addr v6_global;
struct in6_addr v6_local;
};
/* BGP router distinguisher value. */
#define BGP_RD_SIZE 8
struct bgp_rd
{
u_char val[BGP_RD_SIZE];
};
#define RMAP_IN 0
#define RMAP_OUT 1
#define RMAP_IMPORT 2
#define RMAP_EXPORT 3
#define RMAP_MAX 4
/* BGP filter structure. */
struct bgp_filter
{
/* Distribute-list. */
struct
{
char *name;
struct access_list *alist;
} dlist[FILTER_MAX];
/* Prefix-list. */
struct
{
char *name;
struct prefix_list *plist;
} plist[FILTER_MAX];
/* Filter-list. */
struct
{
char *name;
struct as_list *aslist;
} aslist[FILTER_MAX];
/* Route-map. */
struct
{
char *name;
struct route_map *map;
} map[RMAP_MAX];
/* Unsuppress-map. */
struct
{
char *name;
struct route_map *map;
} usmap;
};
/* IBGP/EBGP identifier. We also have a CONFED peer, which is to say,
a peer who's AS is part of our Confederation. */
typedef enum
{
BGP_PEER_IBGP = 1,
BGP_PEER_EBGP,
BGP_PEER_INTERNAL,
BGP_PEER_CONFED,
} bgp_peer_sort_t;
/* BGP neighbor structure. */
struct peer
{
/* BGP structure. */
struct bgp *bgp;
/* reference count, primarily to allow bgp_process'ing of route_node's
* to be done after a struct peer is deleted.
*
* named 'lock' for hysterical reasons within Quagga.
*/
int lock;
/* BGP peer group. */
struct peer_group *group;
u_char af_group[AFI_MAX][SAFI_MAX];
/* Peer's remote AS number. */
as_t as;
/* Peer's local AS number. */
as_t local_as;
bgp_peer_sort_t sort;
/* Peer's Change local AS number. */
as_t change_local_as;
/* Remote router ID. */
struct in_addr remote_id;
/* Local router ID. */
struct in_addr local_id;
/* Peer specific RIB when configured as route-server-client. */
struct bgp_table *rib[AFI_MAX][SAFI_MAX];
/* Packet receive and send buffer. */
struct stream *ibuf;
struct stream_fifo *obuf;
struct stream *work;
/* We use a separate stream to encode MP_REACH_NLRI for efficient
* NLRI packing. peer->work stores all the other attributes. The
* actual packet is then constructed by concatenating the two.
*/
struct stream *scratch;
/* Status of the peer. */
int status;
int ostatus;
/* Peer index, used for dumping TABLE_DUMP_V2 format */
uint16_t table_dump_index;
/* Peer information */
int fd; /* File descriptor */
int ttl; /* TTL of TCP connection to the peer. */
int rtt; /* Estimated round-trip-time from TCP_INFO */
int gtsm_hops; /* minimum hopcount to peer */
char *desc; /* Description of the peer. */
unsigned short port; /* Destination port for peer */
char *host; /* Printable address of the peer. */
union sockunion su; /* Sockunion address of the peer. */
time_t uptime; /* Last Up/Down time */
time_t readtime; /* Last read time */
time_t resettime; /* Last reset time */
ifindex_t ifindex; /* ifindex of the BGP connection. */
char *ifname; /* bind interface name. */
char *update_if;
union sockunion *update_source;
struct zlog *log;
union sockunion *su_local; /* Sockunion of local address. */
union sockunion *su_remote; /* Sockunion of remote address. */
int shared_network; /* Is this peer shared same network. */
struct bgp_nexthop nexthop; /* Nexthop */
/* Peer address family configuration. */
u_char afc[AFI_MAX][SAFI_MAX];
u_char afc_nego[AFI_MAX][SAFI_MAX];
u_char afc_adv[AFI_MAX][SAFI_MAX];
u_char afc_recv[AFI_MAX][SAFI_MAX];
/* Capability flags (reset in bgp_stop) */
u_int16_t cap;
#define PEER_CAP_REFRESH_ADV (1 << 0) /* refresh advertised */
#define PEER_CAP_REFRESH_OLD_RCV (1 << 1) /* refresh old received */
#define PEER_CAP_REFRESH_NEW_RCV (1 << 2) /* refresh rfc received */
#define PEER_CAP_DYNAMIC_ADV (1 << 3) /* dynamic advertised */
#define PEER_CAP_DYNAMIC_RCV (1 << 4) /* dynamic received */
#define PEER_CAP_RESTART_ADV (1 << 5) /* restart advertised */
#define PEER_CAP_RESTART_RCV (1 << 6) /* restart received */
#define PEER_CAP_AS4_ADV (1 << 7) /* as4 advertised */
#define PEER_CAP_AS4_RCV (1 << 8) /* as4 received */
#define PEER_CAP_RESTART_BIT_ADV (1 << 9) /* sent restart state */
#define PEER_CAP_RESTART_BIT_RCV (1 << 10) /* peer restart state */
/* Capability flags (reset in bgp_stop) */
u_int16_t af_cap[AFI_MAX][SAFI_MAX];
#define PEER_CAP_ORF_PREFIX_SM_ADV (1 << 0) /* send-mode advertised */
#define PEER_CAP_ORF_PREFIX_RM_ADV (1 << 1) /* receive-mode advertised */
#define PEER_CAP_ORF_PREFIX_SM_RCV (1 << 2) /* send-mode received */
#define PEER_CAP_ORF_PREFIX_RM_RCV (1 << 3) /* receive-mode received */
#define PEER_CAP_ORF_PREFIX_SM_OLD_RCV (1 << 4) /* send-mode received */
#define PEER_CAP_ORF_PREFIX_RM_OLD_RCV (1 << 5) /* receive-mode received */
#define PEER_CAP_RESTART_AF_RCV (1 << 6) /* graceful restart afi/safi received */
#define PEER_CAP_RESTART_AF_PRESERVE_RCV (1 << 7) /* graceful restart afi/safi F-bit received */
/* Global configuration flags. */
u_int32_t flags;
#define PEER_FLAG_PASSIVE (1 << 0) /* passive mode */
#define PEER_FLAG_SHUTDOWN (1 << 1) /* shutdown */
#define PEER_FLAG_DONT_CAPABILITY (1 << 2) /* dont-capability */
#define PEER_FLAG_OVERRIDE_CAPABILITY (1 << 3) /* override-capability */
#define PEER_FLAG_STRICT_CAP_MATCH (1 << 4) /* strict-match */
#define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 5) /* dynamic capability */
#define PEER_FLAG_DISABLE_CONNECTED_CHECK (1 << 6) /* disable-connected-check */
#define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 7) /* local-as no-prepend */
#define PEER_FLAG_LOCAL_AS_REPLACE_AS (1 << 8) /* local-as no-prepend replace-as */
/* NSF mode (graceful restart) */
u_char nsf[AFI_MAX][SAFI_MAX];
/* Per AF configuration flags. */
u_int32_t af_flags[AFI_MAX][SAFI_MAX];
#define PEER_FLAG_SEND_COMMUNITY (1 << 0) /* send-community */
#define PEER_FLAG_SEND_EXT_COMMUNITY (1 << 1) /* send-community ext. */
#define PEER_FLAG_NEXTHOP_SELF (1 << 2) /* next-hop-self */
#define PEER_FLAG_REFLECTOR_CLIENT (1 << 3) /* reflector-client */
#define PEER_FLAG_RSERVER_CLIENT (1 << 4) /* route-server-client */
#define PEER_FLAG_SOFT_RECONFIG (1 << 5) /* soft-reconfiguration */
#define PEER_FLAG_AS_PATH_UNCHANGED (1 << 6) /* transparent-as */
#define PEER_FLAG_NEXTHOP_UNCHANGED (1 << 7) /* transparent-next-hop */
#define PEER_FLAG_MED_UNCHANGED (1 << 8) /* transparent-next-hop */
#define PEER_FLAG_DEFAULT_ORIGINATE (1 << 9) /* default-originate */
#define PEER_FLAG_REMOVE_PRIVATE_AS (1 << 10) /* remove-private-as */
#define PEER_FLAG_ALLOWAS_IN (1 << 11) /* set allowas-in */
#define PEER_FLAG_ORF_PREFIX_SM (1 << 12) /* orf capability send-mode */
#define PEER_FLAG_ORF_PREFIX_RM (1 << 13) /* orf capability receive-mode */
#define PEER_FLAG_MAX_PREFIX (1 << 14) /* maximum prefix */
#define PEER_FLAG_MAX_PREFIX_WARNING (1 << 15) /* maximum prefix warning-only */
#define PEER_FLAG_NEXTHOP_LOCAL_UNCHANGED (1 << 16) /* leave link-local nexthop unchanged */
#define PEER_FLAG_NEXTHOP_SELF_ALL (1 << 17) /* next-hop-self all */
/* MD5 password */
char *password;
/* default-originate route-map. */
struct
{
char *name;
struct route_map *map;
} default_rmap[AFI_MAX][SAFI_MAX];
/* Peer status flags. */
u_int16_t sflags;
#define PEER_STATUS_ACCEPT_PEER (1 << 0) /* accept peer */
#define PEER_STATUS_PREFIX_OVERFLOW (1 << 1) /* prefix-overflow */
#define PEER_STATUS_CAPABILITY_OPEN (1 << 2) /* capability open send */
#define PEER_STATUS_HAVE_ACCEPT (1 << 3) /* accept peer's parent */
#define PEER_STATUS_GROUP (1 << 4) /* peer-group conf */
#define PEER_STATUS_NSF_MODE (1 << 5) /* NSF aware peer */
#define PEER_STATUS_NSF_WAIT (1 << 6) /* wait comeback peer */
/* Peer status af flags (reset in bgp_stop) */
u_int16_t af_sflags[AFI_MAX][SAFI_MAX];
#define PEER_STATUS_ORF_PREFIX_SEND (1 << 0) /* prefix-list send peer */
#define PEER_STATUS_ORF_WAIT_REFRESH (1 << 1) /* wait refresh received peer */
#define PEER_STATUS_DEFAULT_ORIGINATE (1 << 2) /* default-originate peer */
#define PEER_STATUS_PREFIX_THRESHOLD (1 << 3) /* exceed prefix-threshold */
#define PEER_STATUS_PREFIX_LIMIT (1 << 4) /* exceed prefix-limit */
#define PEER_STATUS_EOR_SEND (1 << 5) /* end-of-rib send to peer */
#define PEER_STATUS_EOR_RECEIVED (1 << 6) /* end-of-rib received from peer */
/* Default attribute value for the peer. */
u_int32_t config;
#define PEER_CONFIG_WEIGHT (1 << 0) /* Default weight. */
#define PEER_CONFIG_TIMER (1 << 1) /* keepalive & holdtime */
#define PEER_CONFIG_CONNECT (1 << 2) /* connect */
#define PEER_CONFIG_ROUTEADV (1 << 3) /* route advertise */
u_int32_t weight;
u_int32_t holdtime;
u_int32_t keepalive;
u_int32_t connect;
u_int32_t routeadv;
/* Timer values. */
u_int32_t v_start;
u_int32_t v_connect;
u_int32_t v_holdtime;
u_int32_t v_keepalive;
u_int32_t v_routeadv;
u_int32_t v_pmax_restart;
u_int32_t v_gr_restart;
/* Threads. */
struct thread *t_read;
struct thread *t_write;
struct thread *t_start;
struct thread *t_connect;
struct thread *t_holdtime;
struct thread *t_keepalive;
struct thread *t_routeadv;
struct thread *t_pmax_restart;
struct thread *t_gr_restart;
struct thread *t_gr_stale;
/* workqueues */
struct work_queue *clear_node_queue;
/* Statistics field */
u_int32_t open_in; /* Open message input count */
u_int32_t open_out; /* Open message output count */
u_int32_t update_in; /* Update message input count */
u_int32_t update_out; /* Update message ouput count */
time_t update_time; /* Update message received time. */
u_int32_t keepalive_in; /* Keepalive input count */
u_int32_t keepalive_out; /* Keepalive output count */
u_int32_t notify_in; /* Notify input count */
u_int32_t notify_out; /* Notify output count */
u_int32_t refresh_in; /* Route Refresh input count */
u_int32_t refresh_out; /* Route Refresh output count */
u_int32_t dynamic_cap_in; /* Dynamic Capability input count. */
u_int32_t dynamic_cap_out; /* Dynamic Capability output count. */
/* BGP state count */
u_int32_t established; /* Established */
u_int32_t dropped; /* Dropped */
/* Syncronization list and time. */
struct bgp_synchronize *sync[AFI_MAX][SAFI_MAX];
time_t synctime;
/* Send prefix count. */
unsigned long scount[AFI_MAX][SAFI_MAX];
/* Announcement attribute hash. */
struct hash *hash[AFI_MAX][SAFI_MAX];
/* Notify data. */
struct bgp_notify notify;
/* Whole packet size to be read. */
unsigned long packet_size;
/* Filter structure. */
struct bgp_filter filter[AFI_MAX][SAFI_MAX];
/* ORF Prefix-list */
struct prefix_list *orf_plist[AFI_MAX][SAFI_MAX];
/* Prefix count. */
unsigned long pcount[AFI_MAX][SAFI_MAX];
/* Max prefix count. */
unsigned long pmax[AFI_MAX][SAFI_MAX];
u_char pmax_threshold[AFI_MAX][SAFI_MAX];
u_int16_t pmax_restart[AFI_MAX][SAFI_MAX];
#define MAXIMUM_PREFIX_THRESHOLD_DEFAULT 75
/* allowas-in. */
char allowas_in[AFI_MAX][SAFI_MAX];
/* peer reset cause */
char last_reset;
#define PEER_DOWN_RID_CHANGE 1 /* bgp router-id command */
#define PEER_DOWN_REMOTE_AS_CHANGE 2 /* neighbor remote-as command */
#define PEER_DOWN_LOCAL_AS_CHANGE 3 /* neighbor local-as command */
#define PEER_DOWN_CLID_CHANGE 4 /* bgp cluster-id command */
#define PEER_DOWN_CONFED_ID_CHANGE 5 /* bgp confederation identifier command */
#define PEER_DOWN_CONFED_PEER_CHANGE 6 /* bgp confederation peer command */
#define PEER_DOWN_RR_CLIENT_CHANGE 7 /* neighbor route-reflector-client command */
#define PEER_DOWN_RS_CLIENT_CHANGE 8 /* neighbor route-server-client command */
#define PEER_DOWN_UPDATE_SOURCE_CHANGE 9 /* neighbor update-source command */
#define PEER_DOWN_AF_ACTIVATE 10 /* neighbor activate command */
#define PEER_DOWN_USER_SHUTDOWN 11 /* neighbor shutdown command */
#define PEER_DOWN_USER_RESET 12 /* clear ip bgp command */
#define PEER_DOWN_NOTIFY_RECEIVED 13 /* notification received */
#define PEER_DOWN_NOTIFY_SEND 14 /* notification send */
#define PEER_DOWN_CLOSE_SESSION 15 /* tcp session close */
#define PEER_DOWN_NEIGHBOR_DELETE 16 /* neghbor delete */
#define PEER_DOWN_RMAP_BIND 17 /* neghbor peer-group command */
#define PEER_DOWN_RMAP_UNBIND 18 /* no neighbor peer-group command */
#define PEER_DOWN_CAPABILITY_CHANGE 19 /* neighbor capability command */
#define PEER_DOWN_PASSIVE_CHANGE 20 /* neighbor passive command */
#define PEER_DOWN_MULTIHOP_CHANGE 21 /* neighbor multihop command */
#define PEER_DOWN_NSF_CLOSE_SESSION 22 /* NSF tcp session close */
/* The kind of route-map Flags.*/
u_char rmap_type;
#define PEER_RMAP_TYPE_IN (1 << 0) /* neighbor route-map in */
#define PEER_RMAP_TYPE_OUT (1 << 1) /* neighbor route-map out */
#define PEER_RMAP_TYPE_NETWORK (1 << 2) /* network route-map */
#define PEER_RMAP_TYPE_REDISTRIBUTE (1 << 3) /* redistribute route-map */
#define PEER_RMAP_TYPE_DEFAULT (1 << 4) /* default-originate route-map */
#define PEER_RMAP_TYPE_NOSET (1 << 5) /* not allow to set commands */
#define PEER_RMAP_TYPE_IMPORT (1 << 6) /* neighbor route-map import */
#define PEER_RMAP_TYPE_EXPORT (1 << 7) /* neighbor route-map export */
};
#define PEER_PASSWORD_MINLEN (1)
#define PEER_PASSWORD_MAXLEN (80)
/* This structure's member directly points incoming packet data
stream. */
struct bgp_nlri
{
/* AFI. */
afi_t afi;
/* SAFI. */
safi_t safi;
/* Pointer to NLRI byte stream. */
u_char *nlri;
/* Length of whole NLRI. */
bgp_size_t length;
};
/* BGP versions. */
#define BGP_VERSION_4 4
/* Default BGP port number. */
#define BGP_PORT_DEFAULT 179
/* BGP message header and packet size. */
#define BGP_MARKER_SIZE 16
#define BGP_HEADER_SIZE 19
#define BGP_MAX_PACKET_SIZE 4096
/* BGP minimum message size. */
#define BGP_MSG_OPEN_MIN_SIZE (BGP_HEADER_SIZE + 10)
#define BGP_MSG_UPDATE_MIN_SIZE (BGP_HEADER_SIZE + 4)
#define BGP_MSG_NOTIFY_MIN_SIZE (BGP_HEADER_SIZE + 2)
#define BGP_MSG_KEEPALIVE_MIN_SIZE (BGP_HEADER_SIZE + 0)
#define BGP_MSG_ROUTE_REFRESH_MIN_SIZE (BGP_HEADER_SIZE + 4)
#define BGP_MSG_CAPABILITY_MIN_SIZE (BGP_HEADER_SIZE + 3)
/* BGP message types. */
#define BGP_MSG_OPEN 1
#define BGP_MSG_UPDATE 2
#define BGP_MSG_NOTIFY 3
#define BGP_MSG_KEEPALIVE 4
#define BGP_MSG_ROUTE_REFRESH_NEW 5
#define BGP_MSG_CAPABILITY 6
#define BGP_MSG_ROUTE_REFRESH_OLD 128
/* BGP open optional parameter. */
#define BGP_OPEN_OPT_AUTH 1
#define BGP_OPEN_OPT_CAP 2
/* BGP4 attribute type codes. */
#define BGP_ATTR_ORIGIN 1
#define BGP_ATTR_AS_PATH 2
#define BGP_ATTR_NEXT_HOP 3
#define BGP_ATTR_MULTI_EXIT_DISC 4
#define BGP_ATTR_LOCAL_PREF 5
#define BGP_ATTR_ATOMIC_AGGREGATE 6
#define BGP_ATTR_AGGREGATOR 7
#define BGP_ATTR_COMMUNITIES 8
#define BGP_ATTR_ORIGINATOR_ID 9
#define BGP_ATTR_CLUSTER_LIST 10
#define BGP_ATTR_DPA 11
#define BGP_ATTR_ADVERTISER 12
#define BGP_ATTR_RCID_PATH 13
#define BGP_ATTR_MP_REACH_NLRI 14
#define BGP_ATTR_MP_UNREACH_NLRI 15
#define BGP_ATTR_EXT_COMMUNITIES 16
#define BGP_ATTR_AS4_PATH 17
#define BGP_ATTR_AS4_AGGREGATOR 18
#define BGP_ATTR_AS_PATHLIMIT 21
#define BGP_ATTR_ENCAP 23
/* BGP update origin. */
#define BGP_ORIGIN_IGP 0
#define BGP_ORIGIN_EGP 1
#define BGP_ORIGIN_INCOMPLETE 2
/* BGP notify message codes. */
#define BGP_NOTIFY_HEADER_ERR 1
#define BGP_NOTIFY_OPEN_ERR 2
#define BGP_NOTIFY_UPDATE_ERR 3
#define BGP_NOTIFY_HOLD_ERR 4
#define BGP_NOTIFY_FSM_ERR 5
#define BGP_NOTIFY_CEASE 6
#define BGP_NOTIFY_CAPABILITY_ERR 7
#define BGP_NOTIFY_MAX 8
#define BGP_NOTIFY_SUBCODE_UNSPECIFIC 0
/* BGP_NOTIFY_HEADER_ERR sub codes. */
#define BGP_NOTIFY_HEADER_NOT_SYNC 1
#define BGP_NOTIFY_HEADER_BAD_MESLEN 2
#define BGP_NOTIFY_HEADER_BAD_MESTYPE 3
#define BGP_NOTIFY_HEADER_MAX 4
/* BGP_NOTIFY_OPEN_ERR sub codes. */
#define BGP_NOTIFY_OPEN_UNSPECIFIC 0
#define BGP_NOTIFY_OPEN_UNSUP_VERSION 1
#define BGP_NOTIFY_OPEN_BAD_PEER_AS 2
#define BGP_NOTIFY_OPEN_BAD_BGP_IDENT 3
#define BGP_NOTIFY_OPEN_UNSUP_PARAM 4
#define BGP_NOTIFY_OPEN_AUTH_FAILURE 5
#define BGP_NOTIFY_OPEN_UNACEP_HOLDTIME 6
#define BGP_NOTIFY_OPEN_UNSUP_CAPBL 7
#define BGP_NOTIFY_OPEN_MAX 8
/* BGP_NOTIFY_UPDATE_ERR sub codes. */
#define BGP_NOTIFY_UPDATE_MAL_ATTR 1
#define BGP_NOTIFY_UPDATE_UNREC_ATTR 2
#define BGP_NOTIFY_UPDATE_MISS_ATTR 3
#define BGP_NOTIFY_UPDATE_ATTR_FLAG_ERR 4
#define BGP_NOTIFY_UPDATE_ATTR_LENG_ERR 5
#define BGP_NOTIFY_UPDATE_INVAL_ORIGIN 6
#define BGP_NOTIFY_UPDATE_AS_ROUTE_LOOP 7
#define BGP_NOTIFY_UPDATE_INVAL_NEXT_HOP 8
#define BGP_NOTIFY_UPDATE_OPT_ATTR_ERR 9
#define BGP_NOTIFY_UPDATE_INVAL_NETWORK 10
#define BGP_NOTIFY_UPDATE_MAL_AS_PATH 11
#define BGP_NOTIFY_UPDATE_MAX 12
/* BGP_NOTIFY_CEASE sub codes (RFC 4486). */
#define BGP_NOTIFY_CEASE_MAX_PREFIX 1
#define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN 2
#define BGP_NOTIFY_CEASE_PEER_UNCONFIG 3
#define BGP_NOTIFY_CEASE_ADMIN_RESET 4
#define BGP_NOTIFY_CEASE_CONNECT_REJECT 5
#define BGP_NOTIFY_CEASE_CONFIG_CHANGE 6
#define BGP_NOTIFY_CEASE_COLLISION_RESOLUTION 7
#define BGP_NOTIFY_CEASE_OUT_OF_RESOURCE 8
#define BGP_NOTIFY_CEASE_MAX 9
/* BGP_NOTIFY_CAPABILITY_ERR sub codes (draft-ietf-idr-dynamic-cap-02). */
#define BGP_NOTIFY_CAPABILITY_INVALID_ACTION 1
#define BGP_NOTIFY_CAPABILITY_INVALID_LENGTH 2
#define BGP_NOTIFY_CAPABILITY_MALFORMED_CODE 3
#define BGP_NOTIFY_CAPABILITY_MAX 4
/* BGP finite state machine status. */
#define Idle 1
#define Connect 2
#define Active 3
#define OpenSent 4
#define OpenConfirm 5
#define Established 6
#define Clearing 7
#define Deleted 8
#define BGP_STATUS_MAX 9
/* BGP finite state machine events. */
#define BGP_Start 1
#define BGP_Stop 2
#define TCP_connection_open 3
#define TCP_connection_closed 4
#define TCP_connection_open_failed 5
#define TCP_fatal_error 6
#define ConnectRetry_timer_expired 7
#define Hold_Timer_expired 8
#define KeepAlive_timer_expired 9
#define Receive_OPEN_message 10
#define Receive_KEEPALIVE_message 11
#define Receive_UPDATE_message 12
#define Receive_NOTIFICATION_message 13
#define Clearing_Completed 14
#define BGP_EVENTS_MAX 15
/* BGP timers default value. */
#define BGP_INIT_START_TIMER 5
#define BGP_DEFAULT_HOLDTIME 180
#define BGP_DEFAULT_KEEPALIVE 60
#define BGP_DEFAULT_EBGP_ROUTEADV 30
#define BGP_DEFAULT_IBGP_ROUTEADV 5
#define BGP_CLEAR_CONNECT_RETRY 20
#define BGP_DEFAULT_CONNECT_RETRY 10
/* BGP default local preference. */
#define BGP_DEFAULT_LOCAL_PREF 100
/* BGP graceful restart */
#define BGP_DEFAULT_RESTART_TIME 120
#define BGP_DEFAULT_STALEPATH_TIME 360
/* RFC4364 */
#define SAFI_MPLS_LABELED_VPN 128
/* Max TTL value. */
#define TTL_MAX 255
/* BGP uptime string length. */
#define BGP_UPTIME_LEN 25
/* Default configuration settings for bgpd. */
#define BGP_VTY_PORT 2605
#define BGP_DEFAULT_CONFIG "bgpd.conf"
/* Check AS path loop when we send NLRI. */
/* #define BGP_SEND_ASPATH_CHECK */
/* Flag for peer_clear_soft(). */
enum bgp_clear_type
{
BGP_CLEAR_SOFT_NONE,
BGP_CLEAR_SOFT_OUT,
BGP_CLEAR_SOFT_IN,
BGP_CLEAR_SOFT_BOTH,
BGP_CLEAR_SOFT_IN_ORF_PREFIX,
BGP_CLEAR_SOFT_RSCLIENT
};
/* Macros. */
#define BGP_INPUT(P) ((P)->ibuf)
#define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P)))
#define BGP_IS_VALID_STATE_FOR_NOTIF(S)\
(((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
/* Count prefix size from mask length */
#define PSIZE(a) (((a) + 7) / (8))
/* BGP error codes. */
#define BGP_SUCCESS 0
#define BGP_ERR_INVALID_VALUE -1
#define BGP_ERR_INVALID_FLAG -2
#define BGP_ERR_INVALID_AS -3
#define BGP_ERR_INVALID_BGP -4
#define BGP_ERR_PEER_GROUP_MEMBER -5
#define BGP_ERR_MULTIPLE_INSTANCE_USED -6
#define BGP_ERR_PEER_GROUP_MEMBER_EXISTS -7
#define BGP_ERR_PEER_BELONGS_TO_GROUP -8
#define BGP_ERR_PEER_GROUP_AF_UNCONFIGURED -9
#define BGP_ERR_PEER_GROUP_NO_REMOTE_AS -10
#define BGP_ERR_PEER_GROUP_CANT_CHANGE -11
#define BGP_ERR_PEER_GROUP_MISMATCH -12
#define BGP_ERR_PEER_GROUP_PEER_TYPE_DIFFERENT -13
#define BGP_ERR_MULTIPLE_INSTANCE_NOT_SET -14
#define BGP_ERR_AS_MISMATCH -15
#define BGP_ERR_PEER_INACTIVE -16
#define BGP_ERR_INVALID_FOR_PEER_GROUP_MEMBER -17
#define BGP_ERR_PEER_GROUP_HAS_THE_FLAG -18
#define BGP_ERR_PEER_FLAG_CONFLICT -19
#define BGP_ERR_PEER_GROUP_SHUTDOWN -20
#define BGP_ERR_PEER_FILTER_CONFLICT -21
#define BGP_ERR_NOT_INTERNAL_PEER -22
#define BGP_ERR_REMOVE_PRIVATE_AS -23
#define BGP_ERR_AF_UNCONFIGURED -24
#define BGP_ERR_SOFT_RECONFIG_UNCONFIGURED -25
#define BGP_ERR_INSTANCE_MISMATCH -26
#define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP -27
#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS -28
#define BGP_ERR_TCPSIG_FAILED -29
#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK -30
#define BGP_ERR_NO_IBGP_WITH_TTLHACK -31
#define BGP_ERR_MAX -32
#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS -33
extern struct bgp_master *bm;
/* Prototypes. */
extern void bgp_terminate (void);
extern void bgp_reset (void);
extern time_t bgp_clock (void);
extern void bgp_zclient_reset (void);
extern int bgp_nexthop_set (union sockunion *, union sockunion *,
struct bgp_nexthop *, struct peer *);
extern struct bgp *bgp_get_default (void);
extern struct bgp *bgp_lookup (as_t, const char *);
extern struct bgp *bgp_lookup_by_name (const char *);
extern struct peer *peer_lookup (struct bgp *, union sockunion *);
extern struct peer_group *peer_group_lookup (struct bgp *, const char *);
extern struct peer_group *peer_group_get (struct bgp *, const char *);
extern struct peer *peer_lookup_with_open (union sockunion *, as_t, struct in_addr *,
int *);
/*
* Peers are incredibly easy to memory leak
* due to the various ways that they are actually used
* Provide some functionality to debug locks and unlocks
*/
extern struct peer *peer_lock_with_caller(const char *, struct peer *);
extern struct peer *peer_unlock_with_caller(const char *, struct peer *);
#define peer_unlock(A) peer_unlock_with_caller(__FUNCTION__, (A))
#define peer_lock(B) peer_lock_with_caller(__FUNCTION__, (B))
extern bgp_peer_sort_t peer_sort (struct peer *peer);
extern int peer_active (struct peer *);
extern int peer_active_nego (struct peer *);
extern struct peer *peer_create_accept (struct bgp *);
extern char *peer_uptime (time_t, char *, size_t);
extern int bgp_config_write (struct vty *);
extern void bgp_config_write_family_header (struct vty *, afi_t, safi_t, int *);
extern void bgp_master_init (void);
extern void bgp_init (void);
extern void bgp_route_map_init (void);
extern int bgp_option_set (int);
extern int bgp_option_unset (int);
extern int bgp_option_check (int);
extern int bgp_get (struct bgp **, as_t *, const char *);
extern int bgp_delete (struct bgp *);
extern int bgp_flag_set (struct bgp *, int);
extern int bgp_flag_unset (struct bgp *, int);
extern int bgp_flag_check (struct bgp *, int);
extern void bgp_lock (struct bgp *);
extern void bgp_unlock (struct bgp *);
extern int bgp_router_id_set (struct bgp *, struct in_addr *);
extern int bgp_cluster_id_set (struct bgp *, struct in_addr *);
extern int bgp_cluster_id_unset (struct bgp *);
extern int bgp_confederation_id_set (struct bgp *, as_t);
extern int bgp_confederation_id_unset (struct bgp *);
extern int bgp_confederation_peers_check (struct bgp *, as_t);
extern int bgp_confederation_peers_add (struct bgp *, as_t);
extern int bgp_confederation_peers_remove (struct bgp *, as_t);
extern int bgp_timers_set (struct bgp *, u_int32_t, u_int32_t);
extern int bgp_timers_unset (struct bgp *);
extern int bgp_default_local_preference_set (struct bgp *, u_int32_t);
extern int bgp_default_local_preference_unset (struct bgp *);
extern int peer_rsclient_active (struct peer *);
extern int peer_remote_as (struct bgp *, union sockunion *, as_t *, afi_t, safi_t);
extern int peer_group_remote_as (struct bgp *, const char *, as_t *);
extern int peer_delete (struct peer *peer);
extern int peer_group_delete (struct peer_group *);
extern int peer_group_remote_as_delete (struct peer_group *);
extern int peer_activate (struct peer *, afi_t, safi_t);
extern int peer_deactivate (struct peer *, afi_t, safi_t);
extern int peer_group_bind (struct bgp *, union sockunion *, struct peer_group *,
afi_t, safi_t, as_t *);
extern int peer_group_unbind (struct bgp *, struct peer *, struct peer_group *,
afi_t, safi_t);
extern int peer_flag_set (struct peer *, u_int32_t);
extern int peer_flag_unset (struct peer *, u_int32_t);
extern int peer_af_flag_set (struct peer *, afi_t, safi_t, u_int32_t);
extern int peer_af_flag_unset (struct peer *, afi_t, safi_t, u_int32_t);
extern int peer_af_flag_check (struct peer *, afi_t, safi_t, u_int32_t);
extern int peer_ebgp_multihop_set (struct peer *, int);
extern int peer_ebgp_multihop_unset (struct peer *);
extern int peer_description_set (struct peer *, char *);
extern int peer_description_unset (struct peer *);
extern int peer_update_source_if_set (struct peer *, const char *);
extern int peer_update_source_addr_set (struct peer *, union sockunion *);
extern int peer_update_source_unset (struct peer *);
extern int peer_default_originate_set (struct peer *, afi_t, safi_t, const char *);
extern int peer_default_originate_unset (struct peer *, afi_t, safi_t);
extern int peer_port_set (struct peer *, u_int16_t);
extern int peer_port_unset (struct peer *);
extern int peer_weight_set (struct peer *, u_int16_t);
extern int peer_weight_unset (struct peer *);
extern int peer_timers_set (struct peer *, u_int32_t, u_int32_t);
extern int peer_timers_unset (struct peer *);
extern int peer_timers_connect_set (struct peer *, u_int32_t);
extern int peer_timers_connect_unset (struct peer *);
extern int peer_advertise_interval_set (struct peer *, u_int32_t);
extern int peer_advertise_interval_unset (struct peer *);
extern int peer_interface_set (struct peer *, const char *);
extern int peer_interface_unset (struct peer *);
extern int peer_distribute_set (struct peer *, afi_t, safi_t, int, const char *);
extern int peer_distribute_unset (struct peer *, afi_t, safi_t, int);
extern int peer_allowas_in_set (struct peer *, afi_t, safi_t, int);
extern int peer_allowas_in_unset (struct peer *, afi_t, safi_t);
extern int peer_local_as_set (struct peer *, as_t, int, int);
extern int peer_local_as_unset (struct peer *);
extern int peer_prefix_list_set (struct peer *, afi_t, safi_t, int, const char *);
extern int peer_prefix_list_unset (struct peer *, afi_t, safi_t, int);
extern int peer_aslist_set (struct peer *, afi_t, safi_t, int, const char *);
extern int peer_aslist_unset (struct peer *,afi_t, safi_t, int);
extern int peer_route_map_set (struct peer *, afi_t, safi_t, int, const char *);
extern int peer_route_map_unset (struct peer *, afi_t, safi_t, int);
extern int peer_unsuppress_map_set (struct peer *, afi_t, safi_t, const char *);
extern int peer_password_set (struct peer *, const char *);
extern int peer_password_unset (struct peer *);
extern int peer_unsuppress_map_unset (struct peer *, afi_t, safi_t);
extern int peer_maximum_prefix_set (struct peer *, afi_t, safi_t, u_int32_t, u_char, int, u_int16_t);
extern int peer_maximum_prefix_unset (struct peer *, afi_t, safi_t);
extern int peer_clear (struct peer *);
extern int peer_clear_soft (struct peer *, afi_t, safi_t, enum bgp_clear_type);
extern int peer_ttl_security_hops_set (struct peer *, int);
extern int peer_ttl_security_hops_unset (struct peer *);
#endif /* _QUAGGA_BGPD_H */
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