+++ /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) 1991, 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.
- *
- * @(#)clnp_timer.c 8.1 (Berkeley) 6/10/93
- */
-
-/***********************************************************
- Copyright IBM Corporation 1987
-
- All Rights Reserved
-
-Permission to use, copy, modify, and distribute this software and its
-documentation for any purpose and without fee is hereby granted,
-provided that the above copyright notice appear in all copies and that
-both that copyright notice and this permission notice appear in
-supporting documentation, and that the name of IBM not be
-used in advertising or publicity pertaining to distribution of the
-software without specific, written prior permission.
-
-IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
-ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
-IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
-ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
-WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
-ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
-SOFTWARE.
-
-******************************************************************/
-
-/*
- * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
- */
-
-#include <sys/param.h>
-#include <sys/mbuf.h>
-#include <sys/domain.h>
-#include <sys/protosw.h>
-#include <sys/socket.h>
-#include <sys/socketvar.h>
-#include <sys/errno.h>
-
-#include <net/if.h>
-#include <net/route.h>
-
-#include <netiso/iso.h>
-#include <netiso/clnp.h>
-#include <netiso/clnp_stat.h>
-#include <netiso/argo_debug.h>
-
-extern struct clnp_fragl *clnp_frags;
-
-/*
- * FUNCTION: clnp_freefrags
- *
- * PURPOSE: Free the resources associated with a fragment
- *
- * RETURNS: pointer to next fragment in list of fragments
- *
- * SIDE EFFECTS:
- *
- * NOTES:
- * TODO: send ER back to source
- */
-struct clnp_fragl *
-clnp_freefrags(cfh)
-register struct clnp_fragl *cfh; /* fragment header to delete */
-{
- struct clnp_fragl *next = cfh->cfl_next;
- struct clnp_frag *cf;
-
- /* free any frags hanging around */
- cf = cfh->cfl_frags;
- while (cf != NULL) {
- struct clnp_frag *cf_next = cf->cfr_next;
- INCSTAT(cns_fragdropped);
- m_freem(cf->cfr_data);
- cf = cf_next;
- }
-
- /* free the copy of the header */
- INCSTAT(cns_fragdropped);
- m_freem(cfh->cfl_orighdr);
-
- if (clnp_frags == cfh) {
- clnp_frags = cfh->cfl_next;
- } else {
- struct clnp_fragl *scan;
-
- for (scan = clnp_frags; scan != NULL; scan = scan->cfl_next) {
- if (scan->cfl_next == cfh) {
- scan->cfl_next = cfh->cfl_next;
- break;
- }
- }
- }
-
- /* free the fragment header */
- m_freem(dtom(cfh));
-
- return(next);
-}
-
-/*
- * FUNCTION: clnp_slowtimo
- *
- * PURPOSE: clnp timer processing; if the ttl expires on a
- * packet on the reassembly queue, discard it.
- *
- * RETURNS: none
- *
- * SIDE EFFECTS:
- *
- * NOTES:
- */
-clnp_slowtimo()
-{
- register struct clnp_fragl *cfh = clnp_frags;
- int s = splnet();
-
- while (cfh != NULL) {
- if (--cfh->cfl_ttl == 0) {
- cfh = clnp_freefrags(cfh);
- INCSTAT(cns_fragtimeout);
- } else {
- cfh = cfh->cfl_next;
- }
- }
- splx(s);
-}
-
-/*
- * FUNCTION: clnp_drain
- *
- * PURPOSE: drain off all datagram fragments
- *
- * RETURNS: none
- *
- * SIDE EFFECTS:
- *
- * NOTES:
- * TODO: should send back ER
- */
-clnp_drain()
-{
- register struct clnp_fragl *cfh = clnp_frags;
-
- while (cfh != NULL)
- cfh = clnp_freefrags(cfh);
-}
projects / apple / xnu.git / blobdiff