diff options
Diffstat (limited to 'proto/bgp/bgp.h')
| -rw-r--r-- | proto/bgp/bgp.h | 32 |
1 files changed, 30 insertions, 2 deletions
diff --git a/proto/bgp/bgp.h b/proto/bgp/bgp.h index 1235ee78..6f0a5587 100644 --- a/proto/bgp/bgp.h +++ b/proto/bgp/bgp.h @@ -107,9 +107,11 @@ struct bgp_config { int allow_local_as; /* Allow that number of local ASNs in incoming AS_PATHs */ int allow_local_pref; /* Allow LOCAL_PREF in EBGP sessions */ int gr_mode; /* Graceful restart mode (BGP_GR_*) */ + int llgr_mode; /* Long-lived graceful restart mode (BGP_LLGR_*) */ int setkey; /* Set MD5 password to system SA/SP database */ /* Times below are in seconds */ unsigned gr_time; /* Graceful restart timeout */ + unsigned llgr_time; /* Long-lived graceful restart stale time */ unsigned connect_delay_time; /* Minimum delay between connect attempts */ unsigned connect_retry_time; /* Timeout for connect attempts */ unsigned hold_time, initial_hold_time; @@ -138,6 +140,8 @@ struct bgp_channel_config { u8 gw_mode; /* How we compute route gateway from next_hop attr, see GW_* */ u8 secondary; /* Accept also non-best routes (i.e. RA_ACCEPTED) */ u8 gr_able; /* Allow full graceful restart for the channel */ + u8 llgr_able; /* Allow full long-lived GR for the channel */ + uint llgr_time; /* Long-lived graceful restart stale time */ u8 ext_next_hop; /* Allow both IPv4 and IPv6 next hops */ u8 add_path; /* Use ADD-PATH extension [RFC 7911] */ @@ -166,12 +170,26 @@ struct bgp_channel_config { /* For GR capability per-AF flags */ #define BGP_GRF_FORWARDING 0x80 +#define BGP_LLGR_ABLE 1 +#define BGP_LLGR_AWARE 2 + +#define BGP_LLGRF_FORWARDING 0x80 + +#define BGP_GRS_NONE 0 /* No GR */ +#define BGP_GRS_ACTIVE 1 /* Graceful restart per RFC 4724 */ +#define BGP_GRS_LLGR 2 /* Long-lived GR phase (stale timer active) */ + +#define BGP_BFD_GRACEFUL 2 /* BFD down triggers graceful restart */ + struct bgp_af_caps { u32 afi; u8 ready; /* Multiprotocol capability, RFC 4760 */ u8 gr_able; /* Graceful restart support, RFC 4724 */ u8 gr_af_flags; /* Graceful restart per-AF flags */ + u8 llgr_able; /* Long-lived GR, RFC draft */ + u32 llgr_time; /* Long-lived GR stale time */ + u8 llgr_flags; /* Long-lived GR per-AF flags */ u8 ext_next_hop; /* Extended IPv6 next hop, RFC 5549 */ u8 add_path; /* Multiple paths support, RFC 7911 */ }; @@ -188,6 +206,8 @@ struct bgp_caps { u8 gr_flags; /* Graceful restart flags */ u16 gr_time; /* Graceful restart time in seconds */ + u8 llgr_aware; /* Long-lived GR capability, RFC draft */ + u16 af_count; /* Number of af_data items */ struct bgp_af_caps af_data[0]; /* Per-AF capability data */ @@ -243,6 +263,7 @@ struct bgp_proto { u8 route_refresh; /* Route refresh allowed to send [RFC 2918] */ u8 enhanced_refresh; /* Enhanced refresh is negotiated [RFC 7313] */ u8 gr_ready; /* Neighbor could do graceful restart */ + u8 llgr_ready; /* Neighbor could do Long-lived GR, implies gr_ready */ u8 gr_active_num; /* Neighbor is doing GR, number of active channels */ u8 channel_count; /* Number of active channels */ u32 *afi_map; /* Map channel index -> AFI */ @@ -291,10 +312,13 @@ struct bgp_channel { u32 packets_to_send; /* Bitmap of packet types to be sent */ + u8 ext_next_hop; /* Session allows both IPv4 and IPv6 next hops */ + u8 gr_ready; /* Neighbor could do GR on this AF */ - u8 gr_active; /* Neighbor is doing GR and keeping fwd state */ + u8 gr_active; /* Neighbor is doing GR (BGP_GRS_*) */ - u8 ext_next_hop; /* Session allows both IPv4 and IPv6 next hops */ + timer *stale_timer; /* Long-lived stale timer for LLGR */ + u32 stale_time; /* Stored LLGR stale time from last session */ u8 add_path_rx; /* Session expects receive of ADD-PATH extended NLRI */ u8 add_path_tx; /* Session expects transmit of ADD-PATH extended NLRI */ @@ -505,6 +529,7 @@ void bgp_free_prefix(struct bgp_channel *c, struct bgp_prefix *bp); int bgp_rte_better(struct rte *, struct rte *); int bgp_rte_mergable(rte *pri, rte *sec); int bgp_rte_recalculate(rtable *table, net *net, rte *new, rte *old, rte *old_best); +struct rte *bgp_rte_modify_stale(struct rte *r, struct linpool *pool); void bgp_rt_notify(struct proto *P, struct channel *C, net *n, rte *new, rte *old); int bgp_import_control(struct proto *, struct rte **, struct linpool *); int bgp_get_attr(struct eattr *e, byte *buf, int buflen); @@ -645,6 +670,9 @@ void bgp_update_next_hop(struct bgp_export_state *s, eattr *a, ea_list **to); #define BGP_COMM_NO_ADVERTISE 0xffffff02 /* Don't export at all */ #define BGP_COMM_NO_EXPORT_SUBCONFED 0xffffff03 /* NO_EXPORT even in local confederation */ +#define BGP_COMM_LLGR_STALE 0xffff0006 /* Route is stale according to LLGR */ +#define BGP_COMM_NO_LLGR 0xffff0007 /* Do not treat the route according to LLGR */ + /* Origins */ #define ORIGIN_IGP 0 |