/* * 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; see the file COPYING; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef ISIS_CIRCUIT_H #define ISIS_CIRCUIT_H #include "vty.h" #include "if.h" #include "qobj.h" #include "prefix.h" #include "ferr.h" #include "isis_constants.h" #include "isis_common.h" struct isis_lsp; struct password { struct password *next; int len; uint8_t *pass; }; struct metric { uint8_t metric_default; uint8_t metric_error; uint8_t metric_expense; uint8_t metric_delay; }; struct isis_bcast_info { uint8_t 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 ? */ uint8_t l1_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-1 DR */ uint8_t 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; uint8_t circuit_id; /* l1/l2 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 thread *t_send_lsp; struct isis_tx_queue *tx_queue; /* there is no real point in two streams, just for programming kicker */ int (*rx)(struct isis_circuit *circuit, uint8_t *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; uint8_t 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 * differentiated from circuit type (media) */ uint32_t hello_interval[2]; /* hello-interval in seconds */ uint16_t hello_multiplier[2]; /* hello-multiplier */ uint16_t csnp_interval[2]; /* csnp-interval in seconds */ uint16_t psnp_interval[2]; /* psnp-interval in seconds */ uint8_t metric[2]; uint32_t te_metric[2]; struct mpls_te_circuit *mtc; /* Support for MPLS-TE parameters - see isis_te.[c,h] */ int ip_router; /* Route IP ? */ int is_passive; /* Is Passive ? */ struct list *mt_settings; /* IS-IS MT Settings */ struct list *ip_addrs; /* our IP addresses */ 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 */ uint16_t upadjcount[2]; #define ISIS_CIRCUIT_FLAPPED_AFTER_SPF 0x01 uint8_t flags; bool disable_threeway_adj; /* * Counters as in 10589--11.2.5.9 */ uint32_t adj_state_changes; /* changesInAdjacencyState */ uint32_t init_failures; /* intialisationFailures */ uint32_t ctrl_pdus_rxed; /* controlPDUsReceived */ uint32_t ctrl_pdus_txed; /* controlPDUsSent */ uint32_t desig_changes[2]; /* lanLxDesignatedIntermediateSystemChanges */ uint32_t rej_adjacencies; /* rejectedAdjacencies */ QOBJ_FIELDS }; DECLARE_QOBJ_TYPE(isis_circuit) 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); void isis_circuit_prepare(struct isis_circuit *circuit); 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); size_t isis_circuit_pdu_size(struct isis_circuit *circuit); void isis_circuit_stream(struct isis_circuit *circuit, struct stream **stream); struct isis_circuit *isis_circuit_create(struct isis_area *area, struct interface *ifp); void isis_circuit_af_set(struct isis_circuit *circuit, bool ip_router, bool ipv6_router); ferr_r isis_circuit_passive_set(struct isis_circuit *circuit, bool passive); void isis_circuit_is_type_set(struct isis_circuit *circuit, int is_type); ferr_r isis_circuit_circ_type_set(struct isis_circuit *circuit, int circ_type); ferr_r isis_circuit_metric_set(struct isis_circuit *circuit, int level, int metric); ferr_r isis_circuit_passwd_unset(struct isis_circuit *circuit); ferr_r isis_circuit_passwd_cleartext_set(struct isis_circuit *circuit, const char *passwd); ferr_r isis_circuit_passwd_hmac_md5_set(struct isis_circuit *circuit, const char *passwd); int isis_circuit_mt_enabled_set(struct isis_circuit *circuit, uint16_t mtid, bool enabled); #endif /* _ZEBRA_ISIS_CIRCUIT_H */