1/*-
2 * Copyright (c) 1982, 1986, 1988, 1993
3 * The Regents of the University of California. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * @(#)ip_icmp.c 8.2 (Berkeley) 1/4/94
30 */
31
32#include <sys/cdefs.h>
33__FBSDID("$FreeBSD: head/sys/netinet/ip_icmp.c 196019 2009-08-01 19:26:27Z rwatson $");
34
35#include "opt_ipsec.h"
36
37#include <sys/param.h>
38#include <sys/systm.h>
39#include <sys/mbuf.h>
40#include <sys/protosw.h>
41#include <sys/socket.h>

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167 V_icmplim = 200;
168 V_icmplim_output = 1;
169 V_icmp_rfi = 0;
170 V_icmp_quotelen = 8;
171 V_icmpbmcastecho = 0;
172}
173
174/*
175 * Generate an error packet of type error
176 * in response to bad packet ip.
177 */
178void
179icmp_error(struct mbuf *n, int type, int code, uint32_t dest, int mtu)
180{
181 register struct ip *oip = mtod(n, struct ip *), *nip;
182 register unsigned oiphlen = oip->ip_hl << 2;

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