in.h revision 273482
1/* $FreeBSD: head/lib/libnetbsd/netinet/in.h 273482 2014-10-22 21:04:54Z ngie $ */ 2 3/* 4 * Copyright (c) 1982, 1986, 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)in.h 8.3 (Berkeley) 1/3/94 32 */ 33 34#ifndef _LIBNETBSD_NETINET_IN_H_ 35#define _LIBNETBSD_NETINET_IN_H_ 36 37#include_next <netinet/in.h> 38 39/* 40 * Local port number conventions: 41 * 42 * Ports < IPPORT_RESERVED are reserved for privileged processes (e.g. root), 43 * unless a kernel is compiled with IPNOPRIVPORTS defined. 44 * 45 * When a user does a bind(2) or connect(2) with a port number of zero, 46 * a non-conflicting local port address is chosen. 47 * 48 * The default range is IPPORT_ANONMIN to IPPORT_ANONMAX, although 49 * that is settable by sysctl(3); net.inet.ip.anonportmin and 50 * net.inet.ip.anonportmax respectively. 51 * 52 * A user may set the IPPROTO_IP option IP_PORTRANGE to change this 53 * default assignment range. 54 * 55 * The value IP_PORTRANGE_DEFAULT causes the default behavior. 56 * 57 * The value IP_PORTRANGE_HIGH is the same as IP_PORTRANGE_DEFAULT, 58 * and exists only for FreeBSD compatibility purposes. 59 * 60 * The value IP_PORTRANGE_LOW changes the range to the "low" are 61 * that is (by convention) restricted to privileged processes. 62 * This convention is based on "vouchsafe" principles only. 63 * It is only secure if you trust the remote host to restrict these ports. 64 * The range is IPPORT_RESERVEDMIN to IPPORT_RESERVEDMAX. 65 */ 66 67#define IPPORT_ANONMIN 49152 68#define IPPORT_ANONMAX 65535 69#define IPPORT_RESERVEDMIN 600 70#define IPPORT_RESERVEDMAX (IPPORT_RESERVED-1) 71 72#endif 73