xnu-6153.141.1.tar.gz

[apple/xnu.git] / bsd / netinet / icmp_var.h

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/*
 * Copyright (c) 1982, 1986, 1993
 *	The Regents of the University of California.  All rights reserved.
 *
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 * modification, are permitted provided that the following conditions
 * are met:
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 *    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
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 *
 *	@(#)icmp_var.h	8.1 (Berkeley) 6/10/93
 * $FreeBSD: src/sys/netinet/icmp_var.h,v 1.15.2.1 2001/02/24 21:35:18 bmilekic Exp $
 */

#ifndef _NETINET_ICMP_VAR_H_
#define _NETINET_ICMP_VAR_H_
#include <sys/appleapiopts.h>

/*
 * Variables related to this implementation
 * of the internet control message protocol.
 */
struct  icmpstat {
/* statistics related to icmp packets generated */
	u_int32_t       icps_error;     /* # of calls to icmp_error */
	u_int32_t       icps_oldshort;  /* no error 'cuz old ip too short */
	u_int32_t       icps_oldicmp;   /* no error 'cuz old was icmp */
	u_int32_t       icps_outhist[ICMP_MAXTYPE + 1];
/* statistics related to input messages processed */
	u_int32_t       icps_badcode;   /* icmp_code out of range */
	u_int32_t       icps_tooshort;  /* packet < ICMP_MINLEN */
	u_int32_t       icps_checksum;  /* bad checksum */
	u_int32_t       icps_badlen;    /* calculated bound mismatch */
	u_int32_t       icps_reflect;   /* number of responses */
	u_int32_t       icps_inhist[ICMP_MAXTYPE + 1];
	u_int32_t       icps_bmcastecho;/* b/mcast echo requests dropped */
	u_int32_t       icps_bmcasttstamp; /* b/mcast tstamp requests dropped */
};

/*
 * Names for ICMP sysctl objects
 */
#define ICMPCTL_MASKREPL        1       /* allow replies to netmask requests */
#define ICMPCTL_STATS           2       /* statistics (read-only) */
#define ICMPCTL_ICMPLIM         3
#define ICMPCTL_TIMESTAMP       4       /* allow replies to time stamp requests */
#define ICMPCTL_MAXID           5

#ifdef BSD_KERNEL_PRIVATE
#define ICMPCTL_NAMES { \
	{ 0, 0 }, \
	{ "maskrepl", CTLTYPE_INT }, \
	{ "stats", CTLTYPE_STRUCT }, \
	{ "icmplim", CTLTYPE_INT }, \
	{ "icmptimestamp", CTLTYPE_INT }, \
}

SYSCTL_DECL(_net_inet_icmp);
#ifdef ICMP_BANDLIM
extern int badport_bandlim(int);
#endif
#define BANDLIM_UNLIMITED -1
#define BANDLIM_ICMP_UNREACH 0
#define BANDLIM_ICMP_ECHO 1
#define BANDLIM_ICMP_TSTAMP 2
#define BANDLIM_RST_CLOSEDPORT 3 /* No connection, and no listeners */
#define BANDLIM_RST_OPENPORT 4   /* No connection, listener */
#define BANDLIM_MAX 4

extern struct   icmpstat icmpstat;
#endif /* BSD_KERNEL_PRIVATE */
#endif /* _NETINET_ICMP_VAR_H_ */