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gerrit.opencord.org / quagga / d70f99e15b7849f59b970bd62392ed42bda25ab6 / . / isisd / isis_circuit.h
blob: 7163c5b99af87ecac5b6f81e67c9e4ada36c7d07 [file] [log] [blame]
jardineb5d44e2003-12-23 08:09:43 +0000[diff] [blame]1/*
2 * IS-IS Rout(e)ing protocol - isis_circuit.h
3 *
4 * Copyright (C) 2001,2002 Sampo Saaristo
5 * Tampere University of Technology
6 * Institute of Communications Engineering
7 *
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)
11 * any later version.
12 *
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
16 * more details.
17
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.
21 */
22
23#ifndef ISIS_CIRCUIT_H
24#define ISIS_CIRCUIT_H
25
26#define CIRCUIT_MAX 255
27
28struct password {
29 struct password *next;
30 int len;
31 u_char *pass;
32};
33
34struct metric {
35 u_char metric_default;
36 u_char metric_error;
37 u_char metric_expense;
38 u_char metric_delay;
39};
40
41struct isis_bcast_info {
42 u_char snpa [ETH_ALEN]; /* SNPA of this circuit */
43 char run_dr_elect[2]; /* Should we run dr election ? */
44 struct thread *t_run_dr[2]; /* DR election thread */
45 struct thread *t_send_lan_hello[2]; /* send LAN IIHs in this thread */
46 struct list *adjdb[2]; /* adjacency dbs */
47 struct list *lan_neighs[2]; /* list of lx neigh snpa */
48 char is_dr[2]; /* Are we level x DR ? */
49 u_char l1_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-1 DR */
50 u_char l2_desig_is[ISIS_SYS_ID_LEN + 1]; /* level-2 DR */
51 struct thread *t_refresh_pseudo_lsp[2]; /* refresh pseudo-node LSPs */
52 int pad_hellos; /* add padding to Hello PDUs ? */
53 u_char priority[2]; /* l1/2 IS Priority */
54};
55
56struct isis_p2p_info {
57 struct isis_adjacency *neighbor;
58 struct thread *t_send_p2p_hello; /* send P2P IIHs in this thread */
59};
60
61struct isis_circuit {
62 int state;
63 u_char circuit_id; /* l1/l2 p2p/bcast CircuitID */
64 struct isis_area *area; /* back pointer to the area */
65 struct interface *interface; /* interface info from z */
66 int fd; /* IS-IS l1/2 socket */
67 struct nlpids nlpids;
68 /*
69 * Threads
70 */
71 struct thread *t_read;
72 struct thread *t_send_csnp[2];
73 struct thread *t_send_psnp[2];
74 struct list *lsp_queue; /* LSPs to be txed (both levels) */
75 /* there is no real point in two streams, just for programming kicker */
76 int (* rx) (struct isis_circuit *circuit, u_char *ssnpa);
77 struct stream *rcv_stream; /* Stream for receiving */
78 int (* tx) (struct isis_circuit *circuit, int level);
79 struct stream *snd_stream; /* Stream for sending */
80 int idx; /* idx in S[RM|SN] flags */
81#define CIRCUIT_T_BROADCAST 0
82#define CIRCUIT_T_P2P 1
83#define CIRCUIT_T_STATIC_IN 2
84#define CIRCUIT_T_STATIC_OUT 3
85#define CIRCUIT_T_DA 4
86 int circ_type; /* type of the physical interface */
87 union {
88 struct isis_bcast_info bc;
89 struct isis_p2p_info p2p;
90 } u;
91 char ext_domain; /* externalDomain (boolean) */
92 /*
93 * Configurables
94 */
95 struct isis_passwd passwd; /* Circuit rx/tx password */
96 long lsp_interval;
97 int manual_l2_only; /* manualL2OnlyMode (boolean) */
98 int circuit_is_type; /* circuit is type == level of circuit
99 * diffrenciated from circuit type (media) */
100 u_int32_t hello_interval[2]; /* l1HelloInterval in msecs */
101 u_int16_t hello_multiplier[2]; /* l1HelloMultiplier */
102 u_int16_t csnp_interval[2]; /* level-1 csnp-interval in seconds */
103 u_int16_t psnp_interval[2]; /* level-1 psnp-interval in seconds */
104 struct metric metrics[2]; /* l1XxxMetric */
105 struct password *c_rx_passwds; /* circuitReceivePasswords */
106 struct password *c_tc_passwd; /* circuitTransmitPassword */
107 int ip_router; /* Route IP ? */
108 struct list *ip_addrs; /* our IP addresses */
109#ifdef HAVE_IPV6
110 int ipv6_router; /* Route IPv6 ? */
111 struct list *ipv6_link; /* our link local IPv6 addresses */
112 struct list *ipv6_non_link; /* our non-link local IPv6 addresses */
113#endif /* HAVE_IPV6 */
114 /*
115 * RFC 2973 IS-IS Mesh Groups
116 */
117#define MESH_INACTIVE 0
118#define MESH_BLOCKED 1
119#define MESH_SET 2
120 int mesh_enabled; /* meshGroupEnabled */
121 u_int16_t mesh_group; /* meshGroup */
122 u_int16_t upadjcount[2];
123 /*
124 * Counters as in 10589--11.2.5.9
125 */
126 u_int32_t adj_state_changes; /* changesInAdjacencyState */
127 u_int32_t init_failures; /* intialisationFailures */
128 u_int32_t ctrl_pdus_rxed; /* controlPDUsReceived */
129 u_int32_t ctrl_pdus_txed; /* controlPDUsSent */
130 u_int32_t desig_changes[2]; /* lanLxDesignatedIntermediateSystemChanges*/
131 u_int32_t rej_adjacencies; /* rejectedAdjacencies */
132};
133
134
135void isis_circuit_init (void);
136struct isis_circuit *isis_circuit_new (void);
137struct isis_circuit *circuit_lookup_by_ifp (struct interface *ifp,
138 struct list *list);
139struct isis_circuit *circuit_scan_by_ifp (struct interface *ifp);
140void isis_circuit_del (struct isis_circuit *circuit);
141void isis_circuit_configure (struct isis_circuit *circuit,
142 struct isis_area *area);
143void isis_circuit_up (struct isis_circuit *circuit);
144void isis_circuit_deconfigure (struct isis_circuit *circuit,
145 struct isis_area *area);
146
147int isis_circuit_destroy (struct isis_circuit *circuit);
148void isis_circuit_if_add (struct isis_circuit *circuit,
149 struct interface *ifp);
150void isis_circuit_if_del (struct isis_circuit *circuit);
151void circuit_update_nlpids (struct isis_circuit *circuit);
152void isis_circuit_update_params (struct isis_circuit *circuit,
153 struct interface *ifp);
154void isis_circuit_add_addr (struct isis_circuit *circuit,
155 struct connected *conn);
156void isis_circuit_del_addr (struct isis_circuit *circuit,
157 struct connected *conn);
158#endif /* _ZEBRA_ISIS_CIRCUIT_H */