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git.proxmox.com Git - mirror_frr.git/blob - isisd/isis_dynhn.c
2 * IS-IS Rout(e)ing protocol - isis_dynhn.c
3 * Dynamic hostname cache
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; see the file COPYING; if not, write to the Free Software
20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
34 #include "isisd/isis_constants.h"
35 #include "isisd/isis_common.h"
36 #include "isisd/isis_flags.h"
37 #include "isisd/isis_circuit.h"
38 #include "isisd/isisd.h"
39 #include "isisd/isis_dynhn.h"
40 #include "isisd/isis_misc.h"
41 #include "isisd/isis_constants.h"
43 extern struct host host
;
45 struct list
*dyn_cache
= NULL
;
46 static int dyn_cache_cleanup(struct thread
*);
48 void dyn_cache_init(void)
50 if (dyn_cache
== NULL
)
51 dyn_cache
= list_new();
52 thread_add_timer(master
, dyn_cache_cleanup
, NULL
, 120,
57 static int dyn_cache_cleanup(struct thread
*thread
)
59 struct listnode
*node
, *nnode
;
60 struct isis_dynhn
*dyn
;
61 time_t now
= time(NULL
);
63 isis
->t_dync_clean
= NULL
;
65 for (ALL_LIST_ELEMENTS(dyn_cache
, node
, nnode
, dyn
)) {
66 if ((now
- dyn
->refresh
) < MAX_LSP_LIFETIME
)
69 list_delete_node(dyn_cache
, node
);
70 XFREE(MTYPE_ISIS_DYNHN
, dyn
);
73 thread_add_timer(master
, dyn_cache_cleanup
, NULL
, 120,
78 struct isis_dynhn
*dynhn_find_by_id(const uint8_t *id
)
80 struct listnode
*node
= NULL
;
81 struct isis_dynhn
*dyn
= NULL
;
83 for (ALL_LIST_ELEMENTS_RO(dyn_cache
, node
, dyn
))
84 if (memcmp(dyn
->id
, id
, ISIS_SYS_ID_LEN
) == 0)
90 struct isis_dynhn
*dynhn_find_by_name(const char *hostname
)
92 struct listnode
*node
= NULL
;
93 struct isis_dynhn
*dyn
= NULL
;
95 for (ALL_LIST_ELEMENTS_RO(dyn_cache
, node
, dyn
))
96 if (strncmp(dyn
->hostname
, hostname
, 255) == 0)
102 void isis_dynhn_insert(const uint8_t *id
, const char *hostname
, int level
)
104 struct isis_dynhn
*dyn
;
106 dyn
= dynhn_find_by_id(id
);
108 dyn
= XCALLOC(MTYPE_ISIS_DYNHN
, sizeof(struct isis_dynhn
));
109 memcpy(dyn
->id
, id
, ISIS_SYS_ID_LEN
);
111 listnode_add(dyn_cache
, dyn
);
114 snprintf(dyn
->hostname
, sizeof(dyn
->hostname
), "%s", hostname
);
115 dyn
->refresh
= time(NULL
);
118 void isis_dynhn_remove(const uint8_t *id
)
120 struct isis_dynhn
*dyn
;
122 dyn
= dynhn_find_by_id(id
);
125 listnode_delete(dyn_cache
, dyn
);
126 XFREE(MTYPE_ISIS_DYNHN
, dyn
);
130 * Level System ID Dynamic Hostname (notag)
131 * 2 0000.0000.0001 foo-gw
132 * 2 0000.0000.0002 bar-gw
133 * * 0000.0000.0004 this-gw
135 void dynhn_print_all(struct vty
*vty
)
137 struct listnode
*node
;
138 struct isis_dynhn
*dyn
;
140 vty_out(vty
, "Level System ID Dynamic Hostname\n");
141 for (ALL_LIST_ELEMENTS_RO(dyn_cache
, node
, dyn
)) {
142 vty_out(vty
, "%-7d", dyn
->level
);
143 vty_out(vty
, "%-15s%-15s\n", sysid_print(dyn
->id
),
147 vty_out(vty
, " * %s %s\n", sysid_print(isis
->sysid
),