diff options
Diffstat (limited to 'proto/bgp/bgp.h')
| -rw-r--r-- | proto/bgp/bgp.h | 43 |
1 files changed, 19 insertions, 24 deletions
diff --git a/proto/bgp/bgp.h b/proto/bgp/bgp.h index 4ecb86a0..5d2539d5 100644 --- a/proto/bgp/bgp.h +++ b/proto/bgp/bgp.h @@ -31,6 +31,7 @@ struct eattr; #define BGP_SAFI_UNICAST 1 #define BGP_SAFI_MULTICAST 2 +#define BGP_SAFI_FLOW 133 /* Internal AF codes */ @@ -42,6 +43,8 @@ struct eattr; #define BGP_AF_IPV6 BGP_AF( BGP_AFI_IPV6, BGP_SAFI_UNICAST ) #define BGP_AF_IPV4_MC BGP_AF( BGP_AFI_IPV4, BGP_SAFI_MULTICAST ) #define BGP_AF_IPV6_MC BGP_AF( BGP_AFI_IPV6, BGP_SAFI_MULTICAST ) +#define BGP_AF_FLOW4 BGP_AF( BGP_AFI_IPV4, BGP_SAFI_FLOW ) +#define BGP_AF_FLOW6 BGP_AF( BGP_AFI_IPV6, BGP_SAFI_FLOW ) struct bgp_write_state; @@ -70,7 +73,7 @@ struct bgp_config { u16 local_port; /* Local listening port */ u16 remote_port; /* Neighbor destination port */ int multihop; /* Number of hops if multihop */ - int strict_bind; /* Bind listening socket to local address XXXX */ + int strict_bind; /* Bind listening socket to local address */ int ttl_security; /* Enable TTL security [RFC 5082] */ int compare_path_lengths; /* Use path lengths when selecting best route */ int med_metric; /* Compare MULTI_EXIT_DISC even between routes from differen ASes */ @@ -120,6 +123,7 @@ 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 ext_next_hop; /* Allow both IPv4 and IPv6 next hops */ u8 add_path; /* Use ADD-PATH extension [RFC 7911] */ struct rtable_config *igp_table; /* Table used for recursive next hop lookups */ @@ -151,6 +155,7 @@ struct bgp_af_caps { u8 ready; /* Multiprotocol capability, RFC 4760 */ u8 gr_able; /* Graceful restart support, RFC 4724 */ u8 gr_af_flags; /* Graceful restart per-AF flags */ + u8 ext_next_hop; /* Extended IPv6 next hop, RFC 5549 */ u8 add_path; /* Multiple paths support, RFC 7911 */ }; @@ -171,6 +176,10 @@ struct bgp_caps { struct bgp_af_caps af_data[0]; /* Per-AF capability data */ }; +#define WALK_AF_CAPS(caps,ac) \ + for (ac = caps->af_data; ac < &caps->af_data[caps->af_count]; ac++) + + struct bgp_socket { node n; /* Node in global bgp_sockets */ sock *sk; /* Real listening socket */ @@ -267,6 +276,8 @@ struct bgp_channel { u8 gr_ready; /* Neighbor could do GR on this AF */ u8 gr_active; /* Neighbor is doing GR and keeping fwd state */ + u8 ext_next_hop; /* Session allows both IPv4 and IPv6 next hops */ + u8 add_path_rx; /* Session expects receive of ADD-PATH extended NLRI */ u8 add_path_tx; /* Session expects transmit of ADD-PATH extended NLRI */ @@ -446,18 +457,6 @@ bgp_unset_attr(ea_list **to, struct linpool *pool, uint code) { eattr *e = bgp_set_attr(to, pool, code, 0, 0); e->type = EAF_TYPE_UNDEF; } - - -/* Hack: although BA_NEXT_HOP attribute has type EAF_TYPE_IP_ADDRESS, in IPv6 - * we store two addesses in it - a global address and a link local address. - */ -#ifdef XXX -#define NEXT_HOP_LENGTH (2*sizeof(ip_addr)) -static inline void set_next_hop(byte *b, ip_addr addr) { ((ip_addr *) b)[0] = addr; ((ip_addr *) b)[1] = IPA_NONE; } -#define NEXT_HOP_LENGTH sizeof(ip_addr) -static inline void set_next_hop(byte *b, ip_addr addr) { ((ip_addr *) b)[0] = addr; } -#endif - int bgp_encode_attrs(struct bgp_write_state *s, ea_list *attrs, byte *buf, byte *end); ea_list * bgp_decode_attrs(struct bgp_parse_state *s, byte *data, uint len); @@ -510,26 +509,22 @@ void bgp_update_next_hop(struct bgp_export_state *s, eattr *a, ea_list **to); #define BAF_PARTIAL 0x20 #define BAF_EXT_LEN 0x10 -#define BA_ORIGIN 0x01 /* [RFC1771] */ /* WM */ +#define BA_ORIGIN 0x01 /* RFC 4271 */ /* WM */ #define BA_AS_PATH 0x02 /* WM */ #define BA_NEXT_HOP 0x03 /* WM */ #define BA_MULTI_EXIT_DISC 0x04 /* ON */ #define BA_LOCAL_PREF 0x05 /* WD */ #define BA_ATOMIC_AGGR 0x06 /* WD */ #define BA_AGGREGATOR 0x07 /* OT */ -#define BA_COMMUNITY 0x08 /* [RFC1997] */ /* OT */ -#define BA_ORIGINATOR_ID 0x09 /* [RFC1966] */ /* ON */ -#define BA_CLUSTER_LIST 0x0a /* ON */ -/* We don't support these: */ -#define BA_DPA 0x0b /* ??? */ -#define BA_ADVERTISER 0x0c /* [RFC1863] */ -#define BA_RCID_PATH 0x0d -#define BA_MP_REACH_NLRI 0x0e /* [RFC2283] */ -#define BA_MP_UNREACH_NLRI 0x0f +#define BA_COMMUNITY 0x08 /* RFC 1997 */ /* OT */ +#define BA_ORIGINATOR_ID 0x09 /* RFC 4456 */ /* ON */ +#define BA_CLUSTER_LIST 0x0a /* RFC 4456 */ /* ON */ +#define BA_MP_REACH_NLRI 0x0e /* RFC 4760 */ +#define BA_MP_UNREACH_NLRI 0x0f /* RFC 4760 */ #define BA_EXT_COMMUNITY 0x10 /* RFC 4360 */ #define BA_AS4_PATH 0x11 /* RFC 6793 */ #define BA_AS4_AGGREGATOR 0x12 /* RFC 6793 */ -#define BA_LARGE_COMMUNITY 0x20 /* [draft-ietf-idr-large-community] */ +#define BA_LARGE_COMMUNITY 0x20 /* RFC 8092 */ /* BGP connection states */ |