ripng_ifrmap.c
上传用户:xiaozhuqw
上传日期:2009-11-15
资源大小:1338k
文件大小:6k
- /* route-map for interface.
- * Copyright (C) 1999 Kunihiro Ishiguro
- *
- * This file is part of GNU Zebra.
- *
- * GNU Zebra is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the
- * Free Software Foundation; either version 2, or (at your option) any
- * later version.
- *
- * GNU Zebra 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 GNU Zebra; see the file COPYING. If not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
- * 02111-1307, USA.
- */
- #include <zebra.h>
- #include "hash.h"
- #include "command.h"
- #include "memory.h"
- #include "if.h"
- #include "ripng_ifrmap.h"
- struct hash *ifrmaphash;
- /* Hook functions. */
- void (*if_rmap_add_hook) (struct if_rmap *) = NULL;
- void (*if_rmap_delete_hook) (struct if_rmap *) = NULL;
- struct if_rmap *
- if_rmap_new ()
- {
- struct if_rmap *new;
- new = XCALLOC (MTYPE_IF_RMAP, sizeof (struct if_rmap));
- return new;
- }
- void
- if_rmap_free (struct if_rmap *if_rmap)
- {
- if (if_rmap->ifname)
- free (if_rmap->ifname);
- if (if_rmap->routemap[IF_RMAP_IN])
- free (if_rmap->routemap[IF_RMAP_IN]);
- if (if_rmap->routemap[IF_RMAP_OUT])
- free (if_rmap->routemap[IF_RMAP_OUT]);
- XFREE (MTYPE_IF_RMAP, if_rmap);
- }
- struct if_rmap *
- if_rmap_lookup (char *ifname)
- {
- struct if_rmap key;
- struct if_rmap *if_rmap;
- key.ifname = ifname;
- if_rmap = hash_lookup (ifrmaphash, &key);
-
- return if_rmap;
- }
- void
- if_rmap_hook_add (void (*func) (struct if_rmap *))
- {
- if_rmap_add_hook = func;
- }
- void
- if_rmap_hook_delete (void (*func) (struct if_rmap *))
- {
- if_rmap_delete_hook = func;
- }
- void *
- if_rmap_hash_alloc (struct if_rmap *arg)
- {
- struct if_rmap *if_rmap;
- if_rmap = if_rmap_new ();
- if_rmap->ifname = strdup (arg->ifname);
- return if_rmap;
- }
- struct if_rmap *
- if_rmap_get (char *ifname)
- {
- struct if_rmap key;
- key.ifname = ifname;
- return (struct if_rmap *) hash_get (ifrmaphash, &key, if_rmap_hash_alloc);
- }
- unsigned int
- if_rmap_hash_make (struct if_rmap *if_rmap)
- {
- unsigned int key;
- int i;
- key = 0;
- for (i = 0; i < strlen (if_rmap->ifname); i++)
- key += if_rmap->ifname[i];
- return key;
- }
- int
- if_rmap_hash_cmp (struct if_rmap *if_rmap1, struct if_rmap *if_rmap2)
- {
- if (strcmp (if_rmap1->ifname, if_rmap2->ifname) == 0)
- return 1;
- return 0;
- }
- struct if_rmap *
- if_rmap_set (char *ifname, enum if_rmap_type type, char *routemap_name)
- {
- struct if_rmap *if_rmap;
- if_rmap = if_rmap_get (ifname);
- if (type == IF_RMAP_IN)
- {
- if (if_rmap->routemap[IF_RMAP_IN])
- free (if_rmap->routemap[IF_RMAP_IN]);
- if_rmap->routemap[IF_RMAP_IN] = strdup (routemap_name);
- }
- if (type == IF_RMAP_OUT)
- {
- if (if_rmap->routemap[IF_RMAP_OUT])
- free (if_rmap->routemap[IF_RMAP_OUT]);
- if_rmap->routemap[IF_RMAP_OUT] = strdup (routemap_name);
- }
- if (if_rmap_add_hook)
- (*if_rmap_add_hook) (if_rmap);
-
- return if_rmap;
- }
- int
- if_rmap_unset (char *ifname, enum if_rmap_type type, char *routemap_name)
- {
- struct if_rmap *if_rmap;
- if_rmap = if_rmap_lookup (ifname);
- if (!if_rmap)
- return 0;
- if (type == IF_RMAP_IN)
- {
- if (!if_rmap->routemap[IF_RMAP_IN])
- return 0;
- if (strcmp (if_rmap->routemap[IF_RMAP_IN], routemap_name) != 0)
- return 0;
- free (if_rmap->routemap[IF_RMAP_IN]);
- if_rmap->routemap[IF_RMAP_IN] = NULL;
- }
- if (type == IF_RMAP_OUT)
- {
- if (!if_rmap->routemap[IF_RMAP_OUT])
- return 0;
- if (strcmp (if_rmap->routemap[IF_RMAP_OUT], routemap_name) != 0)
- return 0;
- free (if_rmap->routemap[IF_RMAP_OUT]);
- if_rmap->routemap[IF_RMAP_OUT] = NULL;
- }
- if (if_rmap_delete_hook)
- (*if_rmap_delete_hook) (if_rmap);
- if (if_rmap->routemap[IF_RMAP_IN] == NULL &&
- if_rmap->routemap[IF_RMAP_OUT] == NULL)
- {
- hash_release (ifrmaphash, if_rmap);
- if_rmap_free (if_rmap);
- }
- return 1;
- }
- DEFUN (ripng_if_rmap,
- ripng_if_rmap_cmd,
- "route-map RMAP_NAME (in|out) IFNAME",
- "Route map setn"
- "Route map namen"
- "Route map set for input filteringn"
- "Route map set for output filteringn"
- "Route map interface namen")
- {
- enum if_rmap_type type;
- struct if_rmap *if_rmap;
- if (strncmp (argv[1], "i", 1) == 0)
- type = IF_RMAP_IN;
- else if (strncmp (argv[1], "o", 1) == 0)
- type = IF_RMAP_OUT;
- else
- {
- vty_out (vty, "route-map direction must be [in|out]%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- if_rmap = if_rmap_set (argv[2], type, argv[0]);
- return CMD_SUCCESS;
- }
- DEFUN (no_ripng_if_rmap,
- no_ripng_if_rmap_cmd,
- "no route-map ROUTEMAP_NAME (in|out) IFNAME",
- NO_STR
- "Route map unsetn"
- "Route map namen"
- "Route map for input filteringn"
- "Route map for output filteringn"
- "Route map interface namen")
- {
- int ret;
- enum if_rmap_type type;
- if (strncmp (argv[1], "i", 1) == 0)
- type = IF_RMAP_IN;
- else if (strncmp (argv[1], "o", 1) == 0)
- type = IF_RMAP_OUT;
- else
- {
- vty_out (vty, "route-map direction must be [in|out]%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- ret = if_rmap_unset (argv[2], type, argv[0]);
- if (! ret)
- {
- vty_out (vty, "route-map doesn't exist%s", VTY_NEWLINE);
- return CMD_WARNING;
- }
- return CMD_SUCCESS;
- }
- /* Configuration write function. */
- int
- config_write_if_rmap (struct vty *vty)
- {
- int i;
- struct hash_backet *mp;
- int write = 0;
- for (i = 0; i < ifrmaphash->size; i++)
- for (mp = ifrmaphash->index[i]; mp; mp = mp->next)
- {
- struct if_rmap *if_rmap;
- if_rmap = mp->data;
- if (if_rmap->routemap[IF_RMAP_IN])
- {
- vty_out (vty, " route-map %s in %s%s",
- if_rmap->routemap[IF_RMAP_IN],
- if_rmap->ifname,
- VTY_NEWLINE);
- write++;
- }
- if (if_rmap->routemap[IF_RMAP_OUT])
- {
- vty_out (vty, " route-map %s out %s%s",
- if_rmap->routemap[IF_RMAP_OUT],
- if_rmap->ifname,
- VTY_NEWLINE);
- write++;
- }
- }
- return write;
- }
- void
- if_rmap_reset ()
- {
- hash_clean (ifrmaphash, (void (*) (void *)) if_rmap_free);
- }
- void
- if_rmap_init (void)
- {
- ifrmaphash = hash_create (if_rmap_hash_make, if_rmap_hash_cmp);
- install_element (RIPNG_NODE, &ripng_if_rmap_cmd);
- install_element (RIPNG_NODE, &no_ripng_if_rmap_cmd);
- }