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d62a17aede
indent.py `git ls-files | pcregrep '\.[ch]$' | pcregrep -v '^(ldpd|babeld|nhrpd)/'` Signed-off-by: David Lamparter <equinox@opensourcerouting.org>
553 lines
15 KiB
C
553 lines
15 KiB
C
/* Distribute list functions
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* Copyright (C) 1998, 1999 Kunihiro Ishiguro
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*
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* This file is part of GNU Zebra.
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*
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* GNU Zebra is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published
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* by the Free Software Foundation; either version 2, or (at your
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* option) any later version.
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*
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* GNU Zebra is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; see the file COPYING; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <zebra.h>
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#include "hash.h"
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#include "if.h"
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#include "filter.h"
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#include "command.h"
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#include "distribute.h"
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#include "memory.h"
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DEFINE_MTYPE_STATIC(LIB, DISTRIBUTE, "Distribute list")
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DEFINE_MTYPE_STATIC(LIB, DISTRIBUTE_IFNAME, "Dist-list ifname")
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DEFINE_MTYPE_STATIC(LIB, DISTRIBUTE_NAME, "Dist-list name")
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/* Hash of distribute list. */
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struct hash *disthash;
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/* Hook functions. */
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void (*distribute_add_hook)(struct distribute *);
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void (*distribute_delete_hook)(struct distribute *);
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static struct distribute *distribute_new(void)
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{
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return XCALLOC(MTYPE_DISTRIBUTE, sizeof(struct distribute));
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}
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/* Free distribute object. */
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static void distribute_free(struct distribute *dist)
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{
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int i = 0;
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if (dist->ifname)
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XFREE(MTYPE_DISTRIBUTE_IFNAME, dist->ifname);
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for (i = 0; i < DISTRIBUTE_MAX; i++)
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if (dist->list[i])
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XFREE(MTYPE_DISTRIBUTE_NAME, dist->list[i]);
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for (i = 0; i < DISTRIBUTE_MAX; i++)
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if (dist->prefix[i])
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XFREE(MTYPE_DISTRIBUTE_NAME, dist->prefix[i]);
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XFREE(MTYPE_DISTRIBUTE, dist);
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}
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static void distribute_free_if_empty(struct distribute *dist)
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{
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int i;
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for (i = 0; i < DISTRIBUTE_MAX; i++)
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if (dist->list[i] != NULL || dist->prefix[i] != NULL)
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return;
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hash_release(disthash, dist);
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distribute_free(dist);
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}
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/* Lookup interface's distribute list. */
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struct distribute *distribute_lookup(const char *ifname)
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{
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struct distribute key;
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struct distribute *dist;
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/* temporary reference */
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key.ifname = (ifname) ? XSTRDUP(MTYPE_DISTRIBUTE_IFNAME, ifname) : NULL;
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dist = hash_lookup(disthash, &key);
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if (key.ifname)
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XFREE(MTYPE_DISTRIBUTE_IFNAME, key.ifname);
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return dist;
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}
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void distribute_list_add_hook(void (*func)(struct distribute *))
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{
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distribute_add_hook = func;
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}
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void distribute_list_delete_hook(void (*func)(struct distribute *))
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{
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distribute_delete_hook = func;
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}
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static void *distribute_hash_alloc(struct distribute *arg)
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{
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struct distribute *dist;
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dist = distribute_new();
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if (arg->ifname)
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dist->ifname = XSTRDUP(MTYPE_DISTRIBUTE_IFNAME, arg->ifname);
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else
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dist->ifname = NULL;
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return dist;
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}
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/* Make new distribute list and push into hash. */
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static struct distribute *distribute_get(const char *ifname)
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{
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struct distribute key;
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struct distribute *ret;
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/* temporary reference */
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key.ifname = (ifname) ? XSTRDUP(MTYPE_DISTRIBUTE_IFNAME, ifname) : NULL;
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ret = hash_get(disthash, &key,
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(void *(*)(void *))distribute_hash_alloc);
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if (key.ifname)
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XFREE(MTYPE_DISTRIBUTE_IFNAME, key.ifname);
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return ret;
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}
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static unsigned int distribute_hash_make(void *arg)
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{
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const struct distribute *dist = arg;
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return dist->ifname ? string_hash_make(dist->ifname) : 0;
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}
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/* If two distribute-list have same value then return 1 else return
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0. This function is used by hash package. */
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static int distribute_cmp(const struct distribute *dist1,
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const struct distribute *dist2)
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{
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if (dist1->ifname && dist2->ifname)
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if (strcmp(dist1->ifname, dist2->ifname) == 0)
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return 1;
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if (!dist1->ifname && !dist2->ifname)
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return 1;
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return 0;
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}
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/* Set access-list name to the distribute list. */
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static void distribute_list_set(const char *ifname, enum distribute_type type,
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const char *alist_name)
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{
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struct distribute *dist;
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dist = distribute_get(ifname);
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if (dist->list[type])
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XFREE(MTYPE_DISTRIBUTE_NAME, dist->list[type]);
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dist->list[type] = XSTRDUP(MTYPE_DISTRIBUTE_NAME, alist_name);
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/* Apply this distribute-list to the interface. */
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(*distribute_add_hook)(dist);
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}
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/* Unset distribute-list. If matched distribute-list exist then
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return 1. */
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static int distribute_list_unset(const char *ifname, enum distribute_type type,
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const char *alist_name)
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{
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struct distribute *dist;
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dist = distribute_lookup(ifname);
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if (!dist)
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return 0;
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if (!dist->list[type])
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return 0;
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if (strcmp(dist->list[type], alist_name) != 0)
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return 0;
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XFREE(MTYPE_DISTRIBUTE_NAME, dist->list[type]);
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dist->list[type] = NULL;
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/* Apply this distribute-list to the interface. */
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(*distribute_delete_hook)(dist);
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/* If all dist are NULL, then free distribute list. */
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distribute_free_if_empty(dist);
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return 1;
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}
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/* Set access-list name to the distribute list. */
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static void distribute_list_prefix_set(const char *ifname,
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enum distribute_type type,
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const char *plist_name)
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{
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struct distribute *dist;
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dist = distribute_get(ifname);
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if (dist->prefix[type])
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XFREE(MTYPE_DISTRIBUTE_NAME, dist->prefix[type]);
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dist->prefix[type] = XSTRDUP(MTYPE_DISTRIBUTE_NAME, plist_name);
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/* Apply this distribute-list to the interface. */
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(*distribute_add_hook)(dist);
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}
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/* Unset distribute-list. If matched distribute-list exist then
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return 1. */
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static int distribute_list_prefix_unset(const char *ifname,
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enum distribute_type type,
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const char *plist_name)
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{
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struct distribute *dist;
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dist = distribute_lookup(ifname);
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if (!dist)
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return 0;
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if (!dist->prefix[type])
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return 0;
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if (strcmp(dist->prefix[type], plist_name) != 0)
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return 0;
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XFREE(MTYPE_DISTRIBUTE_NAME, dist->prefix[type]);
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dist->prefix[type] = NULL;
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/* Apply this distribute-list to the interface. */
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(*distribute_delete_hook)(dist);
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/* If all dist are NULL, then free distribute list. */
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distribute_free_if_empty(dist);
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return 1;
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}
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DEFUN (distribute_list,
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distribute_list_cmd,
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"distribute-list [prefix] WORD <in|out> [WORD]",
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"Filter networks in routing updates\n"
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"Specify a prefix\n"
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"Access-list name\n"
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"Filter incoming routing updates\n"
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"Filter outgoing routing updates\n"
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"Interface name\n")
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{
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int prefix = (argv[1]->type == WORD_TKN) ? 1 : 0;
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/* Check of distribute list type. */
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enum distribute_type type = argv[2 + prefix]->arg[0] == 'i'
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? DISTRIBUTE_V4_IN
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: DISTRIBUTE_V4_OUT;
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/* Set appropriate function call */
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void (*distfn)(const char *, enum distribute_type, const char *) =
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prefix ? &distribute_list_prefix_set : &distribute_list_set;
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/* if interface is present, get name */
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const char *ifname = NULL;
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if (argv[argc - 1]->type == VARIABLE_TKN)
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ifname = argv[argc - 1]->arg;
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/* Get interface name corresponding distribute list. */
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distfn(ifname, type, argv[1 + prefix]->arg);
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return CMD_SUCCESS;
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}
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DEFUN (ipv6_distribute_list,
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ipv6_distribute_list_cmd,
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"ipv6 distribute-list [prefix] WORD <in|out> [WORD]",
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"IPv6\n"
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"Filter networks in routing updates\n"
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"Specify a prefix\n"
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"Access-list name\n"
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"Filter incoming routing updates\n"
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"Filter outgoing routing updates\n"
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"Interface name\n")
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{
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int prefix = (argv[2]->type == WORD_TKN) ? 1 : 0;
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/* Check of distribute list type. */
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enum distribute_type type = argv[3 + prefix]->arg[0] == 'i'
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? DISTRIBUTE_V6_IN
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: DISTRIBUTE_V6_OUT;
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/* Set appropriate function call */
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void (*distfn)(const char *, enum distribute_type, const char *) =
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prefix ? &distribute_list_prefix_set : &distribute_list_set;
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/* if interface is present, get name */
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const char *ifname = NULL;
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if (argv[argc - 1]->type == VARIABLE_TKN)
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ifname = argv[argc - 1]->arg;
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/* Get interface name corresponding distribute list. */
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distfn(ifname, type, argv[1 + prefix]->arg);
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return CMD_SUCCESS;
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}
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DEFUN (no_distribute_list,
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no_distribute_list_cmd,
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"no [ipv6] distribute-list [prefix] WORD <in|out> [WORD]",
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NO_STR
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"IPv6\n"
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"Filter networks in routing updates\n"
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"Specify a prefix\n"
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"Access-list name\n"
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"Filter incoming routing updates\n"
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"Filter outgoing routing updates\n"
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"Interface name\n")
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{
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int ipv6 = strmatch(argv[1]->text, "ipv6");
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int prefix = (argv[2 + ipv6]->type == WORD_TKN) ? 1 : 0;
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int idx_alname = 2 + ipv6 + prefix;
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int idx_disttype = idx_alname + 1;
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/* Check of distribute list type. */
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enum distribute_type distin =
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(ipv6) ? DISTRIBUTE_V6_IN : DISTRIBUTE_V4_IN;
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enum distribute_type distout =
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(ipv6) ? DISTRIBUTE_V6_OUT : DISTRIBUTE_V4_OUT;
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enum distribute_type type =
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argv[idx_disttype]->arg[0] == 'i' ? distin : distout;
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/* Set appropriate function call */
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int (*distfn)(const char *, enum distribute_type, const char *) =
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prefix ? &distribute_list_prefix_unset : &distribute_list_unset;
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/* if interface is present, get name */
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const char *ifname = NULL;
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if (argv[argc - 1]->type == VARIABLE_TKN)
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ifname = argv[argc - 1]->arg;
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/* Get interface name corresponding distribute list. */
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int ret = distfn(ifname, type, argv[2 + prefix]->arg);
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if (!ret) {
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vty_out(vty, "distribute list doesn't exist\n");
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return CMD_WARNING_CONFIG_FAILED;
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}
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return CMD_SUCCESS;
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}
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static int distribute_print(struct vty *vty, char *tab[], int is_prefix,
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enum distribute_type type, int has_print)
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{
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if (tab[type]) {
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vty_out(vty, "%s %s%s", has_print ? "," : "",
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is_prefix ? "(prefix-list) " : "", tab[type]);
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return 1;
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}
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return has_print;
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}
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int config_show_distribute(struct vty *vty)
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{
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unsigned int i;
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int has_print = 0;
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struct hash_backet *mp;
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struct distribute *dist;
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/* Output filter configuration. */
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dist = distribute_lookup(NULL);
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vty_out(vty, " Outgoing update filter list for all interface is");
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has_print = 0;
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if (dist) {
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has_print = distribute_print(vty, dist->list, 0,
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DISTRIBUTE_V4_OUT, has_print);
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has_print = distribute_print(vty, dist->prefix, 1,
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DISTRIBUTE_V4_OUT, has_print);
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has_print = distribute_print(vty, dist->list, 0,
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DISTRIBUTE_V6_OUT, has_print);
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has_print = distribute_print(vty, dist->prefix, 1,
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DISTRIBUTE_V6_OUT, has_print);
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}
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if (has_print)
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vty_out(vty, "\n");
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else
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vty_out(vty, " not set\n");
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for (i = 0; i < disthash->size; i++)
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for (mp = disthash->index[i]; mp; mp = mp->next) {
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dist = mp->data;
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if (dist->ifname) {
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vty_out(vty, " %s filtered by",
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dist->ifname);
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has_print = 0;
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has_print = distribute_print(vty, dist->list, 0,
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DISTRIBUTE_V4_OUT,
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has_print);
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has_print = distribute_print(
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vty, dist->prefix, 1, DISTRIBUTE_V4_OUT,
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has_print);
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has_print = distribute_print(vty, dist->list, 0,
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DISTRIBUTE_V6_OUT,
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has_print);
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has_print = distribute_print(
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vty, dist->prefix, 1, DISTRIBUTE_V6_OUT,
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has_print);
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if (has_print)
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vty_out(vty, "\n");
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else
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vty_out(vty, " nothing\n");
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}
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}
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/* Input filter configuration. */
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dist = distribute_lookup(NULL);
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vty_out(vty, " Incoming update filter list for all interface is");
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has_print = 0;
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if (dist) {
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has_print = distribute_print(vty, dist->list, 0,
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DISTRIBUTE_V4_IN, has_print);
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has_print = distribute_print(vty, dist->prefix, 1,
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DISTRIBUTE_V4_IN, has_print);
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has_print = distribute_print(vty, dist->list, 0,
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DISTRIBUTE_V6_IN, has_print);
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has_print = distribute_print(vty, dist->prefix, 1,
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DISTRIBUTE_V6_IN, has_print);
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}
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if (has_print)
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vty_out(vty, "\n");
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else
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vty_out(vty, " not set\n");
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for (i = 0; i < disthash->size; i++)
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for (mp = disthash->index[i]; mp; mp = mp->next) {
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dist = mp->data;
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if (dist->ifname) {
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vty_out(vty, " %s filtered by",
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dist->ifname);
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has_print = 0;
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has_print = distribute_print(vty, dist->list, 0,
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DISTRIBUTE_V4_IN,
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has_print);
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has_print = distribute_print(
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vty, dist->prefix, 1, DISTRIBUTE_V4_IN,
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has_print);
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has_print = distribute_print(vty, dist->list, 0,
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DISTRIBUTE_V6_IN,
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has_print);
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has_print = distribute_print(
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vty, dist->prefix, 1, DISTRIBUTE_V6_IN,
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has_print);
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if (has_print)
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vty_out(vty, "\n");
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else
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vty_out(vty, " nothing\n");
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}
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}
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return 0;
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}
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/* Configuration write function. */
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int config_write_distribute(struct vty *vty)
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{
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unsigned int i;
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int j;
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int output, v6;
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struct hash_backet *mp;
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int write = 0;
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for (i = 0; i < disthash->size; i++)
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for (mp = disthash->index[i]; mp; mp = mp->next) {
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struct distribute *dist;
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dist = mp->data;
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for (j = 0; j < DISTRIBUTE_MAX; j++)
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if (dist->list[j]) {
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output = j == DISTRIBUTE_V4_OUT
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|| j == DISTRIBUTE_V6_OUT;
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v6 = j == DISTRIBUTE_V6_IN
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|| j == DISTRIBUTE_V6_OUT;
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vty_out(vty,
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" %sdistribute-list %s %s %s\n",
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v6 ? "ipv6 " : "",
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dist->list[j],
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output ? "out" : "in",
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dist->ifname ? dist->ifname
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: "");
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write++;
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}
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for (j = 0; j < DISTRIBUTE_MAX; j++)
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if (dist->prefix[j]) {
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output = j == DISTRIBUTE_V4_OUT
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|| j == DISTRIBUTE_V6_OUT;
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v6 = j == DISTRIBUTE_V6_IN
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|| j == DISTRIBUTE_V6_OUT;
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vty_out(vty,
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" %sdistribute-list prefix %s %s %s\n",
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v6 ? "ipv6 " : "",
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dist->prefix[j],
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output ? "out" : "in",
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dist->ifname ? dist->ifname
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: "");
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write++;
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}
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}
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return write;
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}
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/* Clear all distribute list. */
|
|
void distribute_list_reset()
|
|
{
|
|
hash_clean(disthash, (void (*)(void *))distribute_free);
|
|
}
|
|
|
|
/* Initialize distribute list related hash. */
|
|
void distribute_list_init(int node)
|
|
{
|
|
disthash = hash_create(
|
|
distribute_hash_make,
|
|
(int (*)(const void *, const void *))distribute_cmp, NULL);
|
|
|
|
/* vtysh command-extraction doesn't grok install_element(node, ) */
|
|
if (node == RIP_NODE) {
|
|
install_element(RIP_NODE, &distribute_list_cmd);
|
|
install_element(RIP_NODE, &no_distribute_list_cmd);
|
|
} else if (node == RIPNG_NODE) {
|
|
install_element(RIPNG_NODE, &distribute_list_cmd);
|
|
install_element(RIPNG_NODE, &no_distribute_list_cmd);
|
|
}
|
|
|
|
/* install v6 */
|
|
if (node == RIPNG_NODE) {
|
|
install_element(RIPNG_NODE, &ipv6_distribute_list_cmd);
|
|
}
|
|
|
|
/* TODO: install v4 syntax command for v6 only protocols. */
|
|
/* if (node == RIPNG_NODE) {
|
|
* install_element (node, &ipv6_as_v4_distribute_list_all_cmd);
|
|
* install_element (node, &no_ipv6_as_v4_distribute_list_all_cmd);
|
|
* install_element (node, &ipv6_as_v4_distribute_list_cmd);
|
|
* install_element (node, &no_ipv6_as_v4_distribute_list_cmd);
|
|
* install_element (node, &ipv6_as_v4_distribute_list_prefix_all_cmd);
|
|
* install_element (node,
|
|
&no_ipv6_as_v4_distribute_list_prefix_all_cmd);
|
|
* install_element (node, &ipv6_as_v4_distribute_list_prefix_cmd);
|
|
* install_element (node, &no_ipv6_as_v4_distribute_list_prefix_cmd);
|
|
}*/
|
|
}
|