File: isis_circuit.h

package info (click to toggle)
quagga 0.99.5-5etch3
  • links: PTS
  • area: main
  • in suites: etch
  • size: 12,140 kB
  • ctags: 12,172
  • sloc: ansic: 170,694; sh: 10,447; perl: 639; makefile: 547; awk: 129; lisp: 62
file content (164 lines) | stat: -rw-r--r-- 5,953 bytes parent folder | download | duplicates (2)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
/*
 * 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 */
  u_int32_t te_metric[2];
  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 */