/* * 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 */ }; 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 */ int sap_length; /* SAP length for DLPI */ 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) */ time_t lsp_queue_last_cleared;/* timestamp used to enforce transmit interval; * for scalability, use one timestamp per * circuit, instead of one per lsp per circuit */ /* 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_UNKNOWN 0 #define CIRCUIT_T_BROADCAST 1 #define CIRCUIT_T_P2P 2 #define CIRCUIT_T_LOOPBACK 3 int circ_type; /* type of the physical interface */ int circ_type_config; /* config type of the physical interface */ union { struct isis_bcast_info bc; struct isis_p2p_info p2p; } u; u_char priority[2]; /* l1/2 IS configured priority */ int pad_hellos; /* add padding to Hello PDUs ? */ char ext_domain; /* externalDomain (boolean) */ int lsp_regenerate_pending[ISIS_LEVELS]; /* * Configurables */ struct isis_passwd passwd; /* Circuit rx/tx password */ int 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 */ u_int32_t te_metric[2]; int ip_router; /* Route IP ? */ int is_passive; /* Is Passive ? */ 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 */ u_int16_t upadjcount[2]; #define ISIS_CIRCUIT_FLAPPED_AFTER_SPF 0x01 u_char flags; /* * 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); void isis_circuit_del (struct isis_circuit *circuit); 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_configure (struct isis_circuit *circuit, struct isis_area *area); void isis_circuit_deconfigure (struct isis_circuit *circuit, struct isis_area *area); void isis_circuit_if_add (struct isis_circuit *circuit, struct interface *ifp); void isis_circuit_if_del (struct isis_circuit *circuit, struct interface *ifp); void isis_circuit_if_bind (struct isis_circuit *circuit, struct interface *ifp); void isis_circuit_if_unbind (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); int isis_circuit_up (struct isis_circuit *circuit); void isis_circuit_down (struct isis_circuit *); void circuit_update_nlpids (struct isis_circuit *circuit); void isis_circuit_print_vty (struct isis_circuit *circuit, struct vty *vty, char detail); #endif /* _ZEBRA_ISIS_CIRCUIT_H */