| /* 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) |
| |
| /* 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; /* File descriptor */ |
| int ttl; /* TTL of TCP connection to the 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 */ |
| |
| unsigned int ifindex; /* ifindex of the BGP connection. */ |
| char *ifname; /* bind interface name. */ |
| char *update_if; |
| union sockunion *update_source; |
| struct zlog *log; |
| 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-00). */ |
| #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_MAX 7 |
| |
| /* 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); |