Initial revision
diff --git a/isisd/isis_circuit.h b/isisd/isis_circuit.h
new file mode 100644
index 0000000..7163c5b
--- /dev/null
+++ b/isisd/isis_circuit.h
@@ -0,0 +1,158 @@
+/*
+ * IS-IS Rout(e)ing protocol - isis_circuit.h
+ *
+ * Copyright (C) 2001,2002 Sampo Saaristo
+ * Tampere University of Technology
+ * Institute of Communications Engineering
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public Licenseas published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program 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 this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+
+#ifndef ISIS_CIRCUIT_H
+#define ISIS_CIRCUIT_H
+
+#define CIRCUIT_MAX 255
+
+struct password {
+ struct password *next;
+ int len;
+ u_char *pass;
+};
+
+struct metric {
+ u_char metric_default;
+ u_char metric_error;
+ u_char metric_expense;
+ u_char metric_delay;
+};
+
+struct isis_bcast_info {
+ u_char snpa [ETH_ALEN]; /* SNPA of this circuit */
+ char run_dr_elect[2]; /* Should we run dr election ? */
+ struct thread *t_run_dr[2]; /* DR election thread */
+ struct thread *t_send_lan_hello[2]; /* send LAN IIHs in this thread */
+ struct list *adjdb[2]; /* adjacency dbs */
+ struct list *lan_neighs[2]; /* list of lx neigh snpa */
+ char is_dr[2]; /* Are we level x DR ? */
+ u_char l1_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-1 DR */
+ u_char l2_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-2 DR */
+ struct thread *t_refresh_pseudo_lsp[2]; /* refresh pseudo-node LSPs */
+ int pad_hellos; /* add padding to Hello PDUs ? */
+ u_char priority[2]; /* l1/2 IS Priority */
+};
+
+struct isis_p2p_info {
+ struct isis_adjacency *neighbor;
+ struct thread *t_send_p2p_hello; /* send P2P IIHs in this thread */
+};
+
+struct isis_circuit {
+ int state;
+ u_char circuit_id; /* l1/l2 p2p/bcast CircuitID */
+ struct isis_area *area; /* back pointer to the area */
+ struct interface *interface; /* interface info from z */
+ int fd; /* IS-IS l1/2 socket */
+ struct nlpids nlpids;
+ /*
+ * Threads
+ */
+ struct thread *t_read;
+ struct thread *t_send_csnp[2];
+ struct thread *t_send_psnp[2];
+ struct list *lsp_queue; /* LSPs to be txed (both levels) */
+ /* there is no real point in two streams, just for programming kicker */
+ int (* rx) (struct isis_circuit *circuit, u_char *ssnpa);
+ struct stream *rcv_stream; /* Stream for receiving */
+ int (* tx) (struct isis_circuit *circuit, int level);
+ struct stream *snd_stream; /* Stream for sending */
+ int idx; /* idx in S[RM|SN] flags */
+#define CIRCUIT_T_BROADCAST 0
+#define CIRCUIT_T_P2P 1
+#define CIRCUIT_T_STATIC_IN 2
+#define CIRCUIT_T_STATIC_OUT 3
+#define CIRCUIT_T_DA 4
+ int circ_type; /* type of the physical interface */
+ union {
+ struct isis_bcast_info bc;
+ struct isis_p2p_info p2p;
+ } u;
+ char ext_domain; /* externalDomain (boolean) */
+ /*
+ * Configurables
+ */
+ struct isis_passwd passwd; /* Circuit rx/tx password */
+ long lsp_interval;
+ int manual_l2_only; /* manualL2OnlyMode (boolean) */
+ int circuit_is_type; /* circuit is type == level of circuit
+ * diffrenciated from circuit type (media) */
+ u_int32_t hello_interval[2]; /* l1HelloInterval in msecs */
+ u_int16_t hello_multiplier[2]; /* l1HelloMultiplier */
+ u_int16_t csnp_interval[2]; /* level-1 csnp-interval in seconds */
+ u_int16_t psnp_interval[2]; /* level-1 psnp-interval in seconds */
+ struct metric metrics[2]; /* l1XxxMetric */
+ struct password *c_rx_passwds; /* circuitReceivePasswords */
+ struct password *c_tc_passwd; /* circuitTransmitPassword */
+ int ip_router; /* Route IP ? */
+ struct list *ip_addrs; /* our IP addresses */
+#ifdef HAVE_IPV6
+ int ipv6_router; /* Route IPv6 ? */
+ struct list *ipv6_link; /* our link local IPv6 addresses */
+ struct list *ipv6_non_link; /* our non-link local IPv6 addresses */
+#endif /* HAVE_IPV6 */
+ /*
+ * RFC 2973 IS-IS Mesh Groups
+ */
+#define MESH_INACTIVE 0
+#define MESH_BLOCKED 1
+#define MESH_SET 2
+ int mesh_enabled; /* meshGroupEnabled */
+ u_int16_t mesh_group; /* meshGroup */
+ u_int16_t upadjcount[2];
+ /*
+ * Counters as in 10589--11.2.5.9
+ */
+ u_int32_t adj_state_changes; /* changesInAdjacencyState */
+ u_int32_t init_failures; /* intialisationFailures */
+ u_int32_t ctrl_pdus_rxed; /* controlPDUsReceived */
+ u_int32_t ctrl_pdus_txed; /* controlPDUsSent */
+ u_int32_t desig_changes[2]; /* lanLxDesignatedIntermediateSystemChanges*/
+ u_int32_t rej_adjacencies; /* rejectedAdjacencies */
+};
+
+
+void isis_circuit_init (void);
+struct isis_circuit *isis_circuit_new (void);
+struct isis_circuit *circuit_lookup_by_ifp (struct interface *ifp,
+ struct list *list);
+struct isis_circuit *circuit_scan_by_ifp (struct interface *ifp);
+void isis_circuit_del (struct isis_circuit *circuit);
+void isis_circuit_configure (struct isis_circuit *circuit,
+ struct isis_area *area);
+void isis_circuit_up (struct isis_circuit *circuit);
+void isis_circuit_deconfigure (struct isis_circuit *circuit,
+ struct isis_area *area);
+
+int isis_circuit_destroy (struct isis_circuit *circuit);
+void isis_circuit_if_add (struct isis_circuit *circuit,
+ struct interface *ifp);
+void isis_circuit_if_del (struct isis_circuit *circuit);
+void circuit_update_nlpids (struct isis_circuit *circuit);
+void isis_circuit_update_params (struct isis_circuit *circuit,
+ struct interface *ifp);
+void isis_circuit_add_addr (struct isis_circuit *circuit,
+ struct connected *conn);
+void isis_circuit_del_addr (struct isis_circuit *circuit,
+ struct connected *conn);
+#endif /* _ZEBRA_ISIS_CIRCUIT_H */