+++ /dev/null
-/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
- *
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
- * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
- * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
- */
-/*
- * Copyright (c) 1992, 1993
- * The Regents of the University of California. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * 3. All advertising materials mentioning features or use of this software
- * must display the following acknowledgement:
- * This product includes software developed by the University of
- * California, Berkeley and its contributors.
- * 4. Neither the name of the University nor the names of its contributors
- * may be used to endorse or promote products derived from this software
- * without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- * @(#)tuba_table.c 8.2 (Berkeley) 11/15/93
- */
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/proc.h>
-#include <sys/mbuf.h>
-#include <sys/socket.h>
-#include <sys/socketvar.h>
-#include <sys/domain.h>
-#include <sys/protosw.h>
-#include <sys/ioctl.h>
-#include <sys/time.h>
-#include <sys/kernel.h>
-
-#include <net/if.h>
-#include <net/radix.h>
-
-#include <netiso/iso.h>
-#include <netiso/tuba_table.h>
-
-int tuba_table_size;
-struct tuba_cache **tuba_table;
-struct radix_node_head *tuba_tree;
-extern int arpt_keep, arpt_prune; /* use same values as arp cache */
-
-void
-tuba_timer()
-{
- int s = splnet();
- int i;
- register struct tuba_cache *tc;
- long timelimit = time.tv_sec - arpt_keep;
-
- timeout(tuba_timer, (caddr_t)0, arpt_prune * hz);
- for (i = tuba_table_size; i > 0; i--)
- if ((tc = tuba_table[i]) && (tc->tc_refcnt == 0) &&
- (tc->tc_time < timelimit)) {
- tuba_table[i] = 0;
- rn_delete(&tc->tc_siso.siso_addr, NULL, tuba_tree);
- FREE((caddr_t)tc, M_RTABLE);
- }
- splx(s);
-}
-
-tuba_table_init()
-{
- rn_inithead((void **)&tuba_tree, 40);
- timeout(tuba_timer, (caddr_t)0, arpt_prune * hz);
-}
-
-int
-tuba_lookup(siso, wait)
- register struct sockaddr_iso *siso;
-{
- struct radix_node *rn, *rn_match();
- register struct tuba_cache *tc;
- struct tuba_cache **new;
- int dupentry = 0, sum_a = 0, sum_b = 0, old_size, i;
-
- if ((rn = rn_match((caddr_t)&siso->siso_addr, tuba_tree->rnh_treetop))
- && ((rn->rn_flags & RNF_ROOT) == 0)) {
- tc = (struct tuba_cache *)rn;
- tc->tc_time = time.tv_sec;
- return (tc->tc_index);
- }
-// if ((tc = (struct tuba_cache *)malloc(sizeof(*tc), M_RTABLE, wait))
-// == NULL)
- if (wait == M_DONTWAIT)
- MALLOC(tc, struct tuba_cache *, sizeof(*tc), M_RTABLE, M_NOWAIT);
- else
- MALLOC(tc, struct tuba_cache *, sizeof(*tc), M_RTABLE, M_WAITOK);
- if (tc == NULL)
- return (0);
- bzero((caddr_t)tc, sizeof (*tc));
- bcopy(siso->siso_data, tc->tc_siso.siso_data,
- tc->tc_siso.siso_nlen = siso->siso_nlen);
- rn_insert(&tc->tc_siso.siso_addr, tuba_tree, &dupentry, tc->tc_nodes);
- if (dupentry)
- panic("tuba_lookup 1");
- tc->tc_siso.siso_family = AF_ISO;
- tc->tc_siso.siso_len = sizeof(tc->tc_siso);
- tc->tc_time = time.tv_sec;
- for (i = sum_a = tc->tc_siso.siso_nlen; --i >= 0; )
- (i & 1 ? sum_a : sum_b) += (u_char)tc->tc_siso.siso_data[i];
- REDUCE(tc->tc_sum, (sum_a << 8) + sum_b);
- HTONS(tc->tc_sum);
- SWAB(tc->tc_ssum, tc->tc_sum);
- for (i = tuba_table_size; i > 0; i--)
- if (tuba_table[i] == 0)
- goto fixup;
- old_size = tuba_table_size;
- if (tuba_table_size == 0)
- tuba_table_size = 15;
- if (tuba_table_size > 0x7fff)
- return (0);
- tuba_table_size = 1 + 2 * tuba_table_size;
- i = (tuba_table_size + 1) * sizeof(tc);
-// new = (struct tuba_cache **)malloc((unsigned)i, M_RTABLE, wait);
- if (wait == M_DONTWAIT)
- MALLOC(new, struct tuba_cache **, i, M_RTABLE, M_NOWAIT);
- else
- MALLOC(new, struct tuba_cache **, i, M_RTABLE, M_WAITOK);
- if (new == 0) {
- tuba_table_size = old_size;
- rn_delete(&tc->tc_siso.siso_addr, NULL, tuba_tree);
- FREE((caddr_t)tc, M_RTABLE);
- return (0);
- }
- bzero((caddr_t)new, (unsigned)i);
- if (tuba_table) {
- bcopy((caddr_t)tuba_table, (caddr_t)new, i >> 1);
- FREE((caddr_t)tuba_table, M_RTABLE);
- }
- tuba_table = new;
- i = tuba_table_size;
-fixup:
- tuba_table[i] = tc;
- tc->tc_index = i;
- return (tc->tc_index);
-}
projects / apple / xnu.git / blobdiff