110 lines
3.9 KiB
C
110 lines
3.9 KiB
C
/*-
|
|
* 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.
|
|
* 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.
|
|
*
|
|
* @(#)icmp_var.h 8.1 (Berkeley) 6/10/93
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
#ifndef _NETINET_ICMP_VAR_H_
|
|
#define _NETINET_ICMP_VAR_H_
|
|
|
|
|
|
/*
|
|
* Variables related to this implementation
|
|
* of the internet control message protocol.
|
|
*/
|
|
struct icmpstat {
|
|
/* statistics related to icmp packets generated */
|
|
u_long icps_error; /* # of calls to icmp_error */
|
|
u_long icps_oldshort; /* no error 'cuz old ip too short */
|
|
u_long icps_oldicmp; /* no error 'cuz old was icmp */
|
|
u_long icps_outhist[ICMP_MAXTYPE + 1];
|
|
/* statistics related to input messages processed */
|
|
u_long icps_badcode; /* icmp_code out of range */
|
|
u_long icps_tooshort; /* packet < ICMP_MINLEN */
|
|
u_long icps_checksum; /* bad checksum */
|
|
u_long icps_badlen; /* calculated bound mismatch */
|
|
u_long icps_reflect; /* number of responses */
|
|
u_long icps_inhist[ICMP_MAXTYPE + 1];
|
|
u_long icps_bmcastecho; /* b/mcast echo requests dropped */
|
|
u_long icps_bmcasttstamp; /* b/mcast tstamp requests dropped */
|
|
u_long icps_badaddr; /* bad return address */
|
|
u_long icps_noroute; /* no route back */
|
|
};
|
|
|
|
#ifdef _KERNEL
|
|
/*
|
|
* In-kernel consumers can use these accessor macros directly to update
|
|
* stats.
|
|
*/
|
|
#define ICMPSTAT_ADD(name, val) V_icmpstat.name += (val)
|
|
#define ICMPSTAT_INC(name) ICMPSTAT_ADD(name, 1)
|
|
|
|
/*
|
|
* Kernel module consumers must use this accessor macro.
|
|
*/
|
|
void kmod_icmpstat_inc(int statnum);
|
|
#define KMOD_ICMPSTAT_INC(name) \
|
|
kmod_icmpstat_inc(offsetof(struct icmpstat, name) / sizeof(u_long))
|
|
#endif
|
|
|
|
/*
|
|
* 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_MAXID 4
|
|
|
|
#define ICMPCTL_NAMES { \
|
|
{ 0, 0 }, \
|
|
{ "maskrepl", CTLTYPE_INT }, \
|
|
{ "stats", CTLTYPE_STRUCT }, \
|
|
{ "icmplim", CTLTYPE_INT }, \
|
|
}
|
|
|
|
#ifdef _KERNEL
|
|
SYSCTL_DECL(_net_inet_icmp);
|
|
|
|
VNET_DECLARE(struct icmpstat, icmpstat); /* icmp statistics. */
|
|
#define V_icmpstat VNET(icmpstat)
|
|
|
|
extern int badport_bandlim(int);
|
|
#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_ICMP6_UNREACH 5
|
|
#define BANDLIM_SCTP_OOTB 6
|
|
#define BANDLIM_MAX 6
|
|
#endif
|
|
|
|
#endif
|