2 * IS-IS Rout(e)ing protocol - isis_circuit.h
4 * Copyright (C) 2001,2002 Sampo Saaristo
5 * Tampere University of Technology
6 * Institute of Communications Engineering
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public Licenseas published by the Free
10 * Software Foundation; either version 2 of the License, or (at your option)
13 * This program is distributed in the hope that it will be useful,but WITHOUT
14 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
15 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
18 * You should have received a copy of the GNU General Public License along
19 * with this program; if not, write to the Free Software Foundation, Inc.,
20 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
23 #ifndef ISIS_CIRCUIT_H
24 #define ISIS_CIRCUIT_H
29 #include "isis_constants.h"
30 #include "isis_common.h"
32 #define CIRCUIT_MAX 255
36 struct password *next;
43 u_char metric_default;
45 u_char metric_expense;
49 struct isis_bcast_info
51 u_char snpa[ETH_ALEN]; /* SNPA of this circuit */
52 char run_dr_elect[2]; /* Should we run dr election ? */
53 struct thread *t_run_dr[2]; /* DR election thread */
54 struct thread *t_send_lan_hello[2]; /* send LAN IIHs in this thread */
55 struct list *adjdb[2]; /* adjacency dbs */
56 struct list *lan_neighs[2]; /* list of lx neigh snpa */
57 char is_dr[2]; /* Are we level x DR ? */
58 u_char l1_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-1 DR */
59 u_char l2_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-2 DR */
60 struct thread *t_refresh_pseudo_lsp[2]; /* refresh pseudo-node LSPs */
65 struct isis_adjacency *neighbor;
66 struct thread *t_send_p2p_hello; /* send P2P IIHs in this thread */
72 u_char circuit_id; /* l1/l2 p2p/bcast CircuitID */
73 struct isis_area *area; /* back pointer to the area */
74 struct interface *interface; /* interface info from z */
75 int fd; /* IS-IS l1/2 socket */
76 int sap_length; /* SAP length for DLPI */
81 struct thread *t_read;
82 struct thread *t_send_csnp[2];
83 struct thread *t_send_psnp[2];
84 struct list *lsp_queue; /* LSPs to be txed (both levels) */
85 time_t lsp_queue_last_cleared;/* timestamp used to enforce transmit interval;
86 * for scalability, use one timestamp per
87 * circuit, instead of one per lsp per circuit
89 /* there is no real point in two streams, just for programming kicker */
90 int (*rx) (struct isis_circuit * circuit, u_char * ssnpa);
91 struct stream *rcv_stream; /* Stream for receiving */
92 int (*tx) (struct isis_circuit * circuit, int level);
93 struct stream *snd_stream; /* Stream for sending */
94 int idx; /* idx in S[RM|SN] flags */
95 #define CIRCUIT_T_UNKNOWN 0
96 #define CIRCUIT_T_BROADCAST 1
97 #define CIRCUIT_T_P2P 2
98 #define CIRCUIT_T_LOOPBACK 3
99 int circ_type; /* type of the physical interface */
100 int circ_type_config; /* config type of the physical interface */
103 struct isis_bcast_info bc;
104 struct isis_p2p_info p2p;
106 u_char priority[2]; /* l1/2 IS configured priority */
107 int pad_hellos; /* add padding to Hello PDUs ? */
108 char ext_domain; /* externalDomain (boolean) */
109 int lsp_regenerate_pending[ISIS_LEVELS];
113 struct isis_passwd passwd; /* Circuit rx/tx password */
114 int is_type; /* circuit is type == level of circuit
115 * differentiated from circuit type (media) */
116 u_int32_t hello_interval[2]; /* l1HelloInterval in msecs */
117 u_int16_t hello_multiplier[2]; /* l1HelloMultiplier */
118 u_int16_t csnp_interval[2]; /* level-1 csnp-interval in seconds */
119 u_int16_t psnp_interval[2]; /* level-1 psnp-interval in seconds */
121 u_int32_t te_metric[2];
122 struct mpls_te_circuit *mtc; /* Support for MPLS-TE parameters - see isis_te.[c,h] */
123 int ip_router; /* Route IP ? */
124 int is_passive; /* Is Passive ? */
125 struct list *ip_addrs; /* our IP addresses */
127 int ipv6_router; /* Route IPv6 ? */
128 struct list *ipv6_link; /* our link local IPv6 addresses */
129 struct list *ipv6_non_link; /* our non-link local IPv6 addresses */
130 #endif /* HAVE_IPV6 */
131 u_int16_t upadjcount[2];
132 #define ISIS_CIRCUIT_FLAPPED_AFTER_SPF 0x01
135 * Counters as in 10589--11.2.5.9
137 u_int32_t adj_state_changes; /* changesInAdjacencyState */
138 u_int32_t init_failures; /* intialisationFailures */
139 u_int32_t ctrl_pdus_rxed; /* controlPDUsReceived */
140 u_int32_t ctrl_pdus_txed; /* controlPDUsSent */
141 u_int32_t desig_changes[2]; /* lanLxDesignatedIntermediateSystemChanges */
142 u_int32_t rej_adjacencies; /* rejectedAdjacencies */
145 void isis_circuit_init (void);
146 struct isis_circuit *isis_circuit_new (void);
147 void isis_circuit_del (struct isis_circuit *circuit);
148 struct isis_circuit *circuit_lookup_by_ifp (struct interface *ifp,
150 struct isis_circuit *circuit_scan_by_ifp (struct interface *ifp);
151 void isis_circuit_configure (struct isis_circuit *circuit,
152 struct isis_area *area);
153 void isis_circuit_deconfigure (struct isis_circuit *circuit,
154 struct isis_area *area);
155 void isis_circuit_if_add (struct isis_circuit *circuit,
156 struct interface *ifp);
157 void isis_circuit_if_del (struct isis_circuit *circuit,
158 struct interface *ifp);
159 void isis_circuit_if_bind (struct isis_circuit *circuit,
160 struct interface *ifp);
161 void isis_circuit_if_unbind (struct isis_circuit *circuit,
162 struct interface *ifp);
163 void isis_circuit_add_addr (struct isis_circuit *circuit,
164 struct connected *conn);
165 void isis_circuit_del_addr (struct isis_circuit *circuit,
166 struct connected *conn);
167 int isis_circuit_up (struct isis_circuit *circuit);
168 void isis_circuit_down (struct isis_circuit *);
169 void circuit_update_nlpids (struct isis_circuit *circuit);
170 void isis_circuit_print_vty (struct isis_circuit *circuit, struct vty *vty,
172 size_t isis_circuit_pdu_size(struct isis_circuit *circuit);
173 void isis_circuit_stream(struct isis_circuit *circuit, struct stream **stream);
175 struct isis_circuit *isis_circuit_create (struct isis_area *area, struct interface *ifp);
176 void isis_circuit_af_set (struct isis_circuit *circuit, bool ip_router, bool ipv6_router);
177 int isis_circuit_passive_set (struct isis_circuit *circuit, bool passive);
178 void isis_circuit_is_type_set (struct isis_circuit *circuit, int is_type);
179 int isis_circuit_circ_type_set (struct isis_circuit *circuit, int circ_type);
181 int isis_circuit_metric_set (struct isis_circuit *circuit, int level, int metric);
183 int isis_circuit_passwd_unset (struct isis_circuit *circuit);
184 int isis_circuit_passwd_cleartext_set (struct isis_circuit *circuit, const char *passwd);
185 int isis_circuit_passwd_hmac_md5_set (struct isis_circuit *circuit, const char *passwd);
187 #endif /* _ZEBRA_ISIS_CIRCUIT_H */