build: Quagga 0.99.23-rc1

[mirror_frr.git] / bgpd / bgpd.h

diff --git a/bgpd/bgpd.h b/bgpd/bgpd.h
index e8b8ef5a7df2ac60280e548ceaafbd872c669503..688f459f263ab1880e33a892715cde14f5fc156d 100644 (file)
--- a/bgpd/bgpd.h
+++ b/bgpd/bgpd.h
@@ -59,6 +59,7 @@ struct bgp_master
 #define BGP_OPT_NO_FIB                   (1 << 0)
 #define BGP_OPT_MULTIPLE_INSTANCE        (1 << 1)
 #define BGP_OPT_CONFIG_CISCO             (1 << 2)
+#define BGP_OPT_NO_LISTEN                (1 << 3)
 };
 
 /* BGP instance structure.  */
@@ -119,6 +120,7 @@ struct bgp
 #define BGP_FLAG_LOG_NEIGHBOR_CHANGES     (1 << 11)
 #define BGP_FLAG_GRACEFUL_RESTART         (1 << 12)
 #define BGP_FLAG_ASPATH_CONFED            (1 << 13)
+#define BGP_FLAG_ASPATH_MULTIPATH_RELAX   (1 << 14)
 
   /* BGP Per AF flags */
   u_int16_t af_flags[AFI_MAX][SAFI_MAX];
@@ -162,6 +164,12 @@ struct bgp
   /* BGP graceful restart */
   u_int32_t restart_time;
   u_int32_t stalepath_time;
+
+  /* Maximum-paths configuration */
+  struct bgp_maxpaths_cfg {
+    u_int16_t maxpaths_ebgp;
+    u_int16_t maxpaths_ibgp;
+  } maxpaths[AFI_MAX][SAFI_MAX];
 };
 
 /* BGP peer-group support. */
@@ -253,6 +261,16 @@ struct bgp_filter
   } usmap;
 };
 
+/* IBGP/EBGP identifier.  We also have a CONFED peer, which is to say,
+   a peer who's AS is part of our Confederation.  */
+typedef enum
+{
+  BGP_PEER_IBGP = 1,
+  BGP_PEER_EBGP,
+  BGP_PEER_INTERNAL,
+  BGP_PEER_CONFED,
+} bgp_peer_sort_t;
+
 /* BGP neighbor structure. */
 struct peer
 {
@@ -276,6 +294,8 @@ struct peer
   /* Peer's local AS number. */
   as_t local_as;
 
+  bgp_peer_sort_t sort;
+
   /* Peer's Change local AS number. */
   as_t change_local_as;
 
@@ -293,6 +313,12 @@ struct peer
   struct stream_fifo *obuf;
   struct stream *work;
 
+  /* We use a separate stream to encode MP_REACH_NLRI for efficient
+   * NLRI packing. peer->work stores all the other attributes. The
+   * actual packet is then constructed by concatenating the two.
+   */
+  struct stream *scratch;
+
   /* Status of the peer. */
   int status;
   int ostatus;
@@ -303,6 +329,7 @@ struct peer
   /* Peer information */
   int fd;                      /* File descriptor */
   int ttl;                     /* TTL of TCP connection to the peer. */
+  int gtsm_hops;               /* minimum hopcount to peer */
   char *desc;                  /* Description of the peer. */
   unsigned short port;          /* Destination port for peer */
   char *host;                  /* Printable address of the peer. */
@@ -361,6 +388,7 @@ struct peer
 #define PEER_FLAG_DYNAMIC_CAPABILITY        (1 << 5) /* dynamic capability */
 #define PEER_FLAG_DISABLE_CONNECTED_CHECK   (1 << 6) /* disable-connected-check */
 #define PEER_FLAG_LOCAL_AS_NO_PREPEND       (1 << 7) /* local-as no-prepend */
+#define PEER_FLAG_LOCAL_AS_REPLACE_AS       (1 << 8) /* local-as no-prepend replace-as */
 
   /* NSF mode (graceful restart) */
   u_char nsf[AFI_MAX][SAFI_MAX];
@@ -631,6 +659,8 @@ struct bgp_nlri
 #define BGP_NOTIFY_CAPABILITY_ERR                7
 #define BGP_NOTIFY_MAX                          8
 
+#define BGP_NOTIFY_SUBCODE_UNSPECIFIC            0
+
 /* BGP_NOTIFY_HEADER_ERR sub codes.  */
 #define BGP_NOTIFY_HEADER_NOT_SYNC               1
 #define BGP_NOTIFY_HEADER_BAD_MESLEN             2
@@ -661,7 +691,7 @@ struct bgp_nlri
 #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).  */
+/* BGP_NOTIFY_CEASE sub codes (RFC 4486).  */
 #define BGP_NOTIFY_CEASE_MAX_PREFIX              1
 #define BGP_NOTIFY_CEASE_ADMIN_SHUTDOWN          2
 #define BGP_NOTIFY_CEASE_PEER_UNCONFIG           3
@@ -724,9 +754,8 @@ struct bgp_nlri
 #define BGP_DEFAULT_RESTART_TIME               120
 #define BGP_DEFAULT_STALEPATH_TIME             360
 
-/* SAFI which used in open capability negotiation.  */
-#define BGP_SAFI_VPNV4                         128
-#define BGP_SAFI_VPNV6                         129
+/* RFC4364 */
+#define SAFI_MPLS_LABELED_VPN                  128
 
 /* Max TTL value.  */
 #define TTL_MAX                                255
@@ -741,16 +770,6 @@ struct bgp_nlri
 /* 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
 {
@@ -765,6 +784,8 @@ enum bgp_clear_type
 /* Macros. */
 #define BGP_INPUT(P)         ((P)->ibuf)
 #define BGP_INPUT_PNT(P)     (STREAM_PNT(BGP_INPUT(P)))
+#define BGP_IS_VALID_STATE_FOR_NOTIF(S)\
+        (((S) == OpenSent) || ((S) == OpenConfirm) || ((S) == Established))
 
 /* Count prefix size from mask length */
 #define PSIZE(a) (((a) + 7) / (8))
@@ -800,7 +821,10 @@ enum bgp_clear_type
 #define BGP_ERR_LOCAL_AS_ALLOWED_ONLY_FOR_EBGP  -27
 #define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS    -28
 #define BGP_ERR_TCPSIG_FAILED                  -29
-#define BGP_ERR_MAX                             -30
+#define BGP_ERR_NO_EBGP_MULTIHOP_WITH_TTLHACK  -30
+#define BGP_ERR_NO_IBGP_WITH_TTLHACK           -31
+#define BGP_ERR_MAX                            -32
+#define BGP_ERR_CANNOT_HAVE_LOCAL_AS_SAME_AS_REMOTE_AS    -33
 
 extern struct bgp_master *bm;
 
@@ -809,6 +833,7 @@ extern struct thread_master *master;
 /* Prototypes. */
 extern void bgp_terminate (void);
 extern void bgp_reset (void);
+extern time_t bgp_clock (void);
 extern void bgp_zclient_reset (void);
 extern int bgp_nexthop_set (union sockunion *, union sockunion *, 
                     struct bgp_nexthop *, struct peer *);
@@ -822,7 +847,7 @@ extern struct peer *peer_lookup_with_open (union sockunion *, as_t, struct in_ad
                                    int *);
 extern struct peer *peer_lock (struct peer *);
 extern struct peer *peer_unlock (struct peer *);
-extern int peer_sort (struct peer *peer);
+extern bgp_peer_sort_t peer_sort (struct peer *peer);
 extern int peer_active (struct peer *);
 extern int peer_active_nego (struct peer *);
 extern struct peer *peer_create_accept (struct bgp *);
@@ -927,7 +952,7 @@ extern int peer_distribute_unset (struct peer *, afi_t, safi_t, int);
 extern int peer_allowas_in_set (struct peer *, afi_t, safi_t, int);
 extern int peer_allowas_in_unset (struct peer *, afi_t, safi_t);
 
-extern int peer_local_as_set (struct peer *, as_t, int);
+extern int peer_local_as_set (struct peer *, as_t, int, int);
 extern int peer_local_as_unset (struct peer *);
 
 extern int peer_prefix_list_set (struct peer *, afi_t, safi_t, int, const char *);
@@ -952,6 +977,7 @@ extern int peer_maximum_prefix_unset (struct peer *, afi_t, safi_t);
 extern int peer_clear (struct peer *);
 extern int peer_clear_soft (struct peer *, afi_t, safi_t, enum bgp_clear_type);
 
-extern void peer_nsf_stop (struct peer *);
+extern int peer_ttl_security_hops_set (struct peer *, int);
+extern int peer_ttl_security_hops_unset (struct peer *);
 
 #endif /* _QUAGGA_BGPD_H */