diff options
Diffstat (limited to 'sys/netiso/tuba_table.c')
| -rw-r--r-- | sys/netiso/tuba_table.c | 144 |
1 files changed, 0 insertions, 144 deletions
diff --git a/sys/netiso/tuba_table.c b/sys/netiso/tuba_table.c deleted file mode 100644 index 0b0a977..0000000 --- a/sys/netiso/tuba_table.c +++ /dev/null @@ -1,144 +0,0 @@ -/* - * 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 - * $Id$ - */ -#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) - 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 (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); -} |
