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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; if not, write to the Free Software Foundation, Inc.,
20 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
34 #include "isisd/dict.h"
35 #include "isisd/isis_constants.h"
36 #include "isisd/isis_common.h"
37 #include "isisd/isis_flags.h"
38 #include "isisd/isis_circuit.h"
39 #include "isisd/isisd.h"
40 #include "isisd/isis_dynhn.h"
41 #include "isisd/isis_misc.h"
42 #include "isisd/isis_constants.h"
44 extern struct host host
;
46 struct list
*dyn_cache
= NULL
;
47 static int dyn_cache_cleanup (struct thread
*);
52 if (dyn_cache
== NULL
)
53 dyn_cache
= list_new ();
54 THREAD_TIMER_ON (master
, isis
->t_dync_clean
, dyn_cache_cleanup
, NULL
, 120);
59 dyn_cache_cleanup (struct thread
*thread
)
61 struct listnode
*node
, *nnode
;
62 struct isis_dynhn
*dyn
;
63 time_t now
= time (NULL
);
65 isis
->t_dync_clean
= NULL
;
67 for (ALL_LIST_ELEMENTS (dyn_cache
, node
, nnode
, dyn
))
69 if ((now
- dyn
->refresh
) < MAX_LSP_LIFETIME
)
72 list_delete_node (dyn_cache
, node
);
73 XFREE (MTYPE_ISIS_DYNHN
, dyn
);
76 THREAD_TIMER_ON (master
, isis
->t_dync_clean
, dyn_cache_cleanup
, NULL
, 120);
81 dynhn_find_by_id (const u_char
* id
)
83 struct listnode
*node
= NULL
;
84 struct isis_dynhn
*dyn
= NULL
;
86 for (ALL_LIST_ELEMENTS_RO (dyn_cache
, node
, dyn
))
87 if (memcmp (dyn
->id
, id
, ISIS_SYS_ID_LEN
) == 0)
94 dynhn_find_by_name (const char *hostname
)
96 struct listnode
*node
= NULL
;
97 struct isis_dynhn
*dyn
= NULL
;
99 for (ALL_LIST_ELEMENTS_RO (dyn_cache
, node
, dyn
))
100 if (strncmp ((char *)dyn
->name
.name
, hostname
, 255) == 0)
107 isis_dynhn_insert (const u_char
* id
, struct hostname
*hostname
, int level
)
109 struct isis_dynhn
*dyn
;
111 dyn
= dynhn_find_by_id (id
);
114 memcpy (&dyn
->name
, hostname
, hostname
->namelen
+ 1);
115 memcpy (dyn
->id
, id
, ISIS_SYS_ID_LEN
);
116 dyn
->refresh
= time (NULL
);
119 dyn
= XCALLOC (MTYPE_ISIS_DYNHN
, sizeof (struct isis_dynhn
));
122 zlog_warn ("isis_dynhn_insert(): out of memory!");
126 /* we also copy the length */
127 memcpy (&dyn
->name
, hostname
, hostname
->namelen
+ 1);
128 memcpy (dyn
->id
, id
, ISIS_SYS_ID_LEN
);
129 dyn
->refresh
= time (NULL
);
132 listnode_add (dyn_cache
, dyn
);
138 isis_dynhn_remove (const u_char
* id
)
140 struct isis_dynhn
*dyn
;
142 dyn
= dynhn_find_by_id (id
);
145 listnode_delete (dyn_cache
, dyn
);
146 XFREE (MTYPE_ISIS_DYNHN
, dyn
);
151 * Level System ID Dynamic Hostname (notag)
152 * 2 0000.0000.0001 foo-gw
153 * 2 0000.0000.0002 bar-gw
154 * * 0000.0000.0004 this-gw
157 dynhn_print_all (struct vty
*vty
)
159 struct listnode
*node
;
160 struct isis_dynhn
*dyn
;
162 vty_out (vty
, "Level System ID Dynamic Hostname%s", VTY_NEWLINE
);
163 for (ALL_LIST_ELEMENTS_RO (dyn_cache
, node
, dyn
))
165 vty_out (vty
, "%-7d", dyn
->level
);
166 vty_out (vty
, "%-15s%-15s%s", sysid_print (dyn
->id
), dyn
->name
.name
,
170 vty_out (vty
, " * %s %s%s", sysid_print (isis
->sysid
), unix_hostname (),