/* 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. */ /* For union sockunion. */ #include "sockunion.h" /* Typedef BGP specific types. */ typedef u_int16_t as_t; 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; /* BGP port number. */ u_int16_t port; /* 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) }; /* BGP instance structure. */ struct bgp { /* AS number of this BGP instance. */ as_t as; /* Name of this BGP instance. */ char *name; /* Self peer. */ struct peer *peer_self; /* BGP peer. */ struct list *peer; /* BGP peer group. */ struct list *group; /* 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) #define BGP_CONFIG_DEFAULT_LOCAL_PREF (1 << 3) /* BGP router identifier. */ struct in_addr router_id; /* 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; /* 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) /* 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 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; #ifdef HAVE_IPV6 struct in6_addr v6_global; struct in6_addr v6_local; #endif /* HAVE_IPV6 */ }; /* BGP router distinguisher value. */ #define BGP_RD_SIZE 8 struct bgp_rd { u_char val[BGP_RD_SIZE]; }; /* 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[FILTER_MAX]; /* Unsuppress-map. */ struct { char *name; struct route_map *map; } usmap; }; /* BGP neighbor structure. */ struct peer { /* BGP structure. */ struct bgp *bgp; /* 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; /* 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; /* Packet receive and send buffer. */ struct stream *ibuf; struct stream_fifo *obuf; struct stream *work; /* Status of the peer. */ int status; int ostatus; /* Peer information */ int *fd; /* connection in use: -> local||accept */ int ttl; /* TTL of TCP connection to the peer. */ int fd_local; /* locally initiated connection */ int fd_accept; /* remote initiated/accepted connection */ 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 */ unsigned int ifindex; /* ifindex of the BGP connection. */ char *ifname; /* bind interface name. */ char *update_if; /* interface to send from */ union sockunion *update_source; /* sockunion to send from */ struct zlog *log; /* log socket */ u_char version; /* Peer BGP version. */ 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.*/ u_char 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 */ /* Capability Flags.*/ 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 */ /* 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_NO_ROUTE_REFRESH_CAP (1 << 5) /* route-refresh */ #define PEER_FLAG_DYNAMIC_CAPABILITY (1 << 6) /* dynamic capability */ #define PEER_FLAG_ENFORCE_MULTIHOP (1 << 7) /* enforce-multihop */ #define PEER_FLAG_LOCAL_AS_NO_PREPEND (1 << 8) /* local-as no-prepend */ /* 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 */ /* 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 */ /* Peer status af flags. */ 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 */ /* 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_asorig; u_int32_t v_routeadv; /* 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_asorig; struct thread *t_routeadv; /* 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]; /* allowas-in. */ char allowas_in[AFI_MAX][SAFI_MAX]; /* 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 */ }; /* 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 #define BGP_VERSION_MP_4_DRAFT_00 40 /* 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 /* 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 /* 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_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 (draft-ietf-idr-cease-subcode-05). */ #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 BGP_STATUS_MAX 7 /* 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 BGP_EVENTS_MAX 14 /* BGP timers default value. */ #define BGP_INIT_START_TIMER 5 #define BGP_ERROR_START_TIMER 30 #define BGP_DEFAULT_HOLDTIME 180 #define BGP_DEFAULT_KEEPALIVE 60 #define BGP_DEFAULT_ASORIGINATE 15 #define BGP_DEFAULT_EBGP_ROUTEADV 30 #define BGP_DEFAULT_IBGP_ROUTEADV 5 #define BGP_CLEAR_CONNECT_RETRY 20 #define BGP_DEFAULT_CONNECT_RETRY 120 /* BGP default local preference. */ #define BGP_DEFAULT_LOCAL_PREF 100 /* SAFI which used in open capability negotiation. */ #define BGP_SAFI_VPNV4 128 #define BGP_SAFI_VPNV6 129 /* 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 */ /* IBGP/EBGP identifier. We also have a CONFED peer, which is to say, a peer who's AS is part of our Confederation. */ enum { BGP_PEER_IBGP, BGP_PEER_EBGP, BGP_PEER_INTERNAL, BGP_PEER_CONFED }; /* 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 }; /* Macros. */ #define BGP_INPUT(P) ((P)->ibuf) #define BGP_INPUT_PNT(P) (STREAM_PNT(BGP_INPUT(P))) /* Macro to check BGP information is alive or not. */ #define BGP_INFO_HOLDDOWN(BI) \ (! CHECK_FLAG ((BI)->flags, BGP_INFO_VALID) \ || CHECK_FLAG ((BI)->flags, BGP_INFO_HISTORY) \ || CHECK_FLAG ((BI)->flags, BGP_INFO_DAMPED)) /* 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_MAX -29 extern struct bgp_master *bm; extern struct thread_master *master; /* Prototypes. */ void bgp_terminate (void); void bgp_reset (void); void bgp_zclient_reset (); int bgp_nexthop_set (union sockunion *, union sockunion *, struct bgp_nexthop *, struct peer *); struct bgp_master *bgp_get_master (); struct bgp *bgp_get_default (); struct bgp *bgp_lookup (as_t, char *); struct bgp *bgp_lookup_by_name (char *); struct peer *peer_lookup (struct bgp *, union sockunion *); struct peer_group *peer_group_lookup (struct bgp *, char *); struct peer_group *peer_group_get (struct bgp *, char *); struct peer *peer_lookup_with_open (union sockunion *, as_t, struct in_addr *, int *); int peer_sort (struct peer *peer); int peer_active (struct peer *); int peer_active_nego (struct peer *); struct peer *peer_create_accept (struct bgp *); char *peer_uptime (time_t, char *, size_t); void bgp_config_write_family_header (struct vty *, afi_t, safi_t, int *); void bgp_master_init (); void bgp_init (); int bgp_option_set (int); int bgp_option_unset (int); int bgp_option_check (int); int bgp_get (struct bgp **, as_t *, char *); int bgp_delete (struct bgp *); int bgp_flag_set (struct bgp *, int); int bgp_flag_unset (struct bgp *, int); int bgp_flag_check (struct bgp *, int); int bgp_router_id_set (struct bgp *, struct in_addr *); int bgp_router_id_unset (struct bgp *); int bgp_cluster_id_set (struct bgp *, struct in_addr *); int bgp_cluster_id_unset (struct bgp *); int bgp_confederation_id_set (struct bgp *, as_t); int bgp_confederation_id_unset (struct bgp *); int bgp_confederation_peers_check (struct bgp *, as_t); int bgp_confederation_peers_add (struct bgp *, as_t); int bgp_confederation_peers_remove (struct bgp *, as_t); int bgp_timers_set (struct bgp *, u_int32_t, u_int32_t); int bgp_timers_unset (struct bgp *); int bgp_default_local_preference_set (struct bgp *, u_int32_t); int bgp_default_local_preference_unset (struct bgp *); int peer_remote_as (struct bgp *, union sockunion *, as_t *, afi_t, safi_t); int peer_group_remote_as (struct bgp *, char *, as_t *); int peer_delete (struct peer *peer); int peer_group_delete (struct peer_group *); int peer_group_remote_as_delete (struct peer_group *); int peer_activate (struct peer *, afi_t, safi_t); int peer_deactivate (struct peer *, afi_t, safi_t); int peer_group_bind (struct bgp *, union sockunion *, struct peer_group *, afi_t, safi_t, as_t *); int peer_group_unbind (struct bgp *, struct peer *, struct peer_group *, afi_t, safi_t); int peer_flag_set (struct peer *, u_int32_t); int peer_flag_unset (struct peer *, u_int32_t); int peer_af_flag_set (struct peer *, afi_t, safi_t, u_int32_t); int peer_af_flag_unset (struct peer *, afi_t, safi_t, u_int32_t); int peer_af_flag_check (struct peer *, afi_t, safi_t, u_int32_t); int peer_ebgp_multihop_set (struct peer *, int); int peer_ebgp_multihop_unset (struct peer *); int peer_description_set (struct peer *, char *); int peer_description_unset (struct peer *); int peer_update_source_if_set (struct peer *, char *); int peer_update_source_addr_set (struct peer *, union sockunion *); int peer_update_source_unset (struct peer *); int peer_default_originate_set (struct peer *, afi_t, safi_t, char *); int peer_default_originate_unset (struct peer *, afi_t, safi_t); int peer_port_set (struct peer *, u_int16_t); int peer_port_unset (struct peer *); int peer_weight_set (struct peer *, u_int16_t); int peer_weight_unset (struct peer *); int peer_timers_set (struct peer *, u_int32_t, u_int32_t); int peer_timers_unset (struct peer *); int peer_timers_connect_set (struct peer *, u_int32_t); int peer_timers_connect_unset (struct peer *); int peer_advertise_interval_set (struct peer *, u_int32_t); int peer_advertise_interval_unset (struct peer *); int peer_version_set (struct peer *, int); int peer_version_unset (struct peer *); int peer_interface_set (struct peer *, char *); int peer_interface_unset (struct peer *); int peer_distribute_set (struct peer *, afi_t, safi_t, int, char *); int peer_distribute_unset (struct peer *, afi_t, safi_t, int); int peer_allowas_in_set (struct peer *, afi_t, safi_t, int); int peer_allowas_in_unset (struct peer *, afi_t, safi_t); int peer_local_as_set (struct peer *, as_t, int); int peer_local_as_unset (struct peer *); int peer_prefix_list_set (struct peer *, afi_t, safi_t, int, char *); int peer_prefix_list_unset (struct peer *, afi_t, safi_t, int); int peer_aslist_set (struct peer *, afi_t, safi_t, int, char *); int peer_aslist_unset (struct peer *,afi_t, safi_t, int); int peer_route_map_set (struct peer *, afi_t, safi_t, int, char *); int peer_route_map_unset (struct peer *, afi_t, safi_t, int); int peer_unsuppress_map_set (struct peer *, afi_t, safi_t, char *); int peer_unsuppress_map_unset (struct peer *, afi_t, safi_t); int peer_maximum_prefix_set (struct peer *, afi_t, safi_t, u_int32_t, int); int peer_maximum_prefix_unset (struct peer *, afi_t, safi_t); int peer_clear (struct peer *); int peer_clear_soft (struct peer *, afi_t, safi_t, enum bgp_clear_type);