mirror of
https://git.proxmox.com/git/mirror_frr
synced 2025-11-04 15:30:26 +00:00
4bef0ec4fb
Historically, isisd has been carrying around its own red-black tree to manage its LSP DB in. This replaces that with the newly-added DECLARE_RBTREE_*. This allows completely removing the dict_* code. Signed-off-by: David Lamparter <equinox@diac24.net>
151 lines
3.7 KiB
C
151 lines
3.7 KiB
C
/*
|
|
* IS-IS Rout(e)ing protocol - isis_dynhn.c
|
|
* Dynamic hostname cache
|
|
* 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; see the file COPYING; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#include <zebra.h>
|
|
|
|
#include "vty.h"
|
|
#include "linklist.h"
|
|
#include "memory.h"
|
|
#include "log.h"
|
|
#include "stream.h"
|
|
#include "command.h"
|
|
#include "if.h"
|
|
#include "thread.h"
|
|
|
|
#include "isisd/isis_constants.h"
|
|
#include "isisd/isis_common.h"
|
|
#include "isisd/isis_flags.h"
|
|
#include "isisd/isis_circuit.h"
|
|
#include "isisd/isisd.h"
|
|
#include "isisd/isis_dynhn.h"
|
|
#include "isisd/isis_misc.h"
|
|
#include "isisd/isis_constants.h"
|
|
|
|
extern struct host host;
|
|
|
|
struct list *dyn_cache = NULL;
|
|
static int dyn_cache_cleanup(struct thread *);
|
|
|
|
void dyn_cache_init(void)
|
|
{
|
|
if (dyn_cache == NULL)
|
|
dyn_cache = list_new();
|
|
thread_add_timer(master, dyn_cache_cleanup, NULL, 120,
|
|
&isis->t_dync_clean);
|
|
return;
|
|
}
|
|
|
|
static int dyn_cache_cleanup(struct thread *thread)
|
|
{
|
|
struct listnode *node, *nnode;
|
|
struct isis_dynhn *dyn;
|
|
time_t now = time(NULL);
|
|
|
|
isis->t_dync_clean = NULL;
|
|
|
|
for (ALL_LIST_ELEMENTS(dyn_cache, node, nnode, dyn)) {
|
|
if ((now - dyn->refresh) < MAX_LSP_LIFETIME)
|
|
continue;
|
|
|
|
list_delete_node(dyn_cache, node);
|
|
XFREE(MTYPE_ISIS_DYNHN, dyn);
|
|
}
|
|
|
|
thread_add_timer(master, dyn_cache_cleanup, NULL, 120,
|
|
&isis->t_dync_clean);
|
|
return ISIS_OK;
|
|
}
|
|
|
|
struct isis_dynhn *dynhn_find_by_id(const uint8_t *id)
|
|
{
|
|
struct listnode *node = NULL;
|
|
struct isis_dynhn *dyn = NULL;
|
|
|
|
for (ALL_LIST_ELEMENTS_RO(dyn_cache, node, dyn))
|
|
if (memcmp(dyn->id, id, ISIS_SYS_ID_LEN) == 0)
|
|
return dyn;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
struct isis_dynhn *dynhn_find_by_name(const char *hostname)
|
|
{
|
|
struct listnode *node = NULL;
|
|
struct isis_dynhn *dyn = NULL;
|
|
|
|
for (ALL_LIST_ELEMENTS_RO(dyn_cache, node, dyn))
|
|
if (strncmp(dyn->hostname, hostname, 255) == 0)
|
|
return dyn;
|
|
|
|
return NULL;
|
|
}
|
|
|
|
void isis_dynhn_insert(const uint8_t *id, const char *hostname, int level)
|
|
{
|
|
struct isis_dynhn *dyn;
|
|
|
|
dyn = dynhn_find_by_id(id);
|
|
if (!dyn) {
|
|
dyn = XCALLOC(MTYPE_ISIS_DYNHN, sizeof(struct isis_dynhn));
|
|
memcpy(dyn->id, id, ISIS_SYS_ID_LEN);
|
|
dyn->level = level;
|
|
listnode_add(dyn_cache, dyn);
|
|
}
|
|
|
|
snprintf(dyn->hostname, sizeof(dyn->hostname), "%s", hostname);
|
|
dyn->refresh = time(NULL);
|
|
}
|
|
|
|
void isis_dynhn_remove(const uint8_t *id)
|
|
{
|
|
struct isis_dynhn *dyn;
|
|
|
|
dyn = dynhn_find_by_id(id);
|
|
if (!dyn)
|
|
return;
|
|
listnode_delete(dyn_cache, dyn);
|
|
XFREE(MTYPE_ISIS_DYNHN, dyn);
|
|
}
|
|
|
|
/*
|
|
* Level System ID Dynamic Hostname (notag)
|
|
* 2 0000.0000.0001 foo-gw
|
|
* 2 0000.0000.0002 bar-gw
|
|
* * 0000.0000.0004 this-gw
|
|
*/
|
|
void dynhn_print_all(struct vty *vty)
|
|
{
|
|
struct listnode *node;
|
|
struct isis_dynhn *dyn;
|
|
|
|
vty_out(vty, "Level System ID Dynamic Hostname\n");
|
|
for (ALL_LIST_ELEMENTS_RO(dyn_cache, node, dyn)) {
|
|
vty_out(vty, "%-7d", dyn->level);
|
|
vty_out(vty, "%-15s%-15s\n", sysid_print(dyn->id),
|
|
dyn->hostname);
|
|
}
|
|
|
|
vty_out(vty, " * %s %s\n", sysid_print(isis->sysid),
|
|
cmd_hostname_get());
|
|
return;
|
|
}
|