diff options
Diffstat (limited to 'proto/bgp/bgp.h')
| -rw-r--r-- | proto/bgp/bgp.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/proto/bgp/bgp.h b/proto/bgp/bgp.h index 170b6bbe..da0114c2 100644 --- a/proto/bgp/bgp.h +++ b/proto/bgp/bgp.h @@ -48,6 +48,8 @@ struct bgp_config { int secondary; /* Accept also non-best routes (i.e. RA_ACCEPTED) */ int add_path; /* Use ADD-PATH extension [draft] */ int allow_local_as; /* Allow that number of local ASNs in incoming AS_PATHs */ + int gr_mode; /* Graceful restart mode (BGP_GR_*) */ + unsigned gr_time; /* Graceful restart timeout */ unsigned connect_retry_time; unsigned hold_time, initial_hold_time; unsigned keepalive_time; @@ -73,6 +75,15 @@ struct bgp_config { #define ADD_PATH_TX 2 #define ADD_PATH_FULL 3 +#define BGP_GR_ABLE 1 +#define BGP_GR_AWARE 2 + +/* For peer_gr_flags */ +#define BGP_GRF_RESTART 0x80 + +/* For peer_gr_aflags */ +#define BGP_GRF_FORWARDING 0x80 + struct bgp_conn { struct bgp_proto *bgp; @@ -90,6 +101,11 @@ struct bgp_conn { u8 peer_refresh_support; /* Peer supports route refresh [RFC2918] */ u8 peer_as4_support; /* Peer supports 4B AS numbers [RFC4893] */ u8 peer_add_path; /* Peer supports ADD-PATH [draft] */ + u8 peer_gr_aware; + u8 peer_gr_able; + u16 peer_gr_time; + u8 peer_gr_flags; + u8 peer_gr_aflags; unsigned hold_time, keepalive_time; /* Times calculated from my and neighbor's requirements */ }; @@ -107,6 +123,8 @@ struct bgp_proto { u32 rr_cluster_id; /* Route reflector cluster ID */ int rr_client; /* Whether neighbor is RR client of me */ int rs_client; /* Whether neighbor is RS client of me */ + u8 gr_ready; /* Neighbor could do graceful restart */ + u8 gr_active; /* Neighbor is doing graceful restart */ struct bgp_conn *conn; /* Connection we have established */ struct bgp_conn outgoing_conn; /* Outgoing connection we're working with */ struct bgp_conn incoming_conn; /* Incoming connection we have neither accepted nor rejected yet */ @@ -117,12 +135,14 @@ struct bgp_proto { rtable *igp_table; /* Table used for recursive next hop lookups */ struct event *event; /* Event for respawning and shutting process */ struct timer *startup_timer; /* Timer used to delay protocol startup due to previous errors (startup_delay) */ + struct timer *gr_timer; /* Timer waiting for reestablishment after graceful restart */ struct bgp_bucket **bucket_hash; /* Hash table of attribute buckets */ unsigned int hash_size, hash_count, hash_limit; HASH(struct bgp_prefix) prefix_hash; /* Prefixes to be sent */ slab *prefix_slab; /* Slab holding prefix nodes */ list bucket_queue; /* Queue of buckets to send */ struct bgp_bucket *withdraw_bucket; /* Withdrawn routes */ + unsigned send_end_mark; /* End-of-RIB mark scheduled for transmit */ unsigned startup_delay; /* Time to delay protocol startup by due to errors */ bird_clock_t last_proto_error; /* Time of last error that leads to protocol stop */ u8 last_error_class; /* Error class of last error */ @@ -172,6 +192,8 @@ void bgp_conn_enter_openconfirm_state(struct bgp_conn *conn); void bgp_conn_enter_established_state(struct bgp_conn *conn); void bgp_conn_enter_close_state(struct bgp_conn *conn); void bgp_conn_enter_idle_state(struct bgp_conn *conn); +void bgp_handle_graceful_restart(struct bgp_proto *p); +void bgp_graceful_restart_done(struct bgp_proto *p); void bgp_store_error(struct bgp_proto *p, struct bgp_conn *c, u8 class, u32 code); void bgp_stop(struct bgp_proto *p, unsigned subcode); @@ -313,6 +335,7 @@ void bgp_log_error(struct bgp_proto *p, u8 class, char *msg, unsigned code, unsi #define BEM_INVALID_MD5 3 /* MD5 authentication kernel request failed (possibly not supported) */ #define BEM_NO_SOCKET 4 #define BEM_BFD_DOWN 5 +#define BEM_GRACEFUL_RESTART 6 /* Automatic shutdown error codes */ |