icmp_var.h   [plain text]


/*
 * Copyright (c) 2000-2013 Apple Inc. All rights reserved.
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 * This file contains Original Code and/or Modifications of Original Code
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 * 
 * Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this file.
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/*
 * Copyright (c) 1982, 1986, 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.
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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_ */