1*4a5d661aSToomas Soome /*- 2*4a5d661aSToomas Soome * Copyright (c) 1982, 1986, 1993 3*4a5d661aSToomas Soome * The Regents of the University of California. 4*4a5d661aSToomas Soome * All rights reserved. 5*4a5d661aSToomas Soome * 6*4a5d661aSToomas Soome * Redistribution and use in source and binary forms, with or without 7*4a5d661aSToomas Soome * modification, are permitted provided that the following conditions 8*4a5d661aSToomas Soome * are met: 9*4a5d661aSToomas Soome * 1. Redistributions of source code must retain the above copyright 10*4a5d661aSToomas Soome * notice, this list of conditions and the following disclaimer. 11*4a5d661aSToomas Soome * 2. Redistributions in binary form must reproduce the above copyright 12*4a5d661aSToomas Soome * notice, this list of conditions and the following disclaimer in the 13*4a5d661aSToomas Soome * documentation and/or other materials provided with the distribution. 14*4a5d661aSToomas Soome * 4. Neither the name of the University nor the names of its contributors 15*4a5d661aSToomas Soome * may be used to endorse or promote products derived from this software 16*4a5d661aSToomas Soome * without specific prior written permission. 17*4a5d661aSToomas Soome * 18*4a5d661aSToomas Soome * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19*4a5d661aSToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20*4a5d661aSToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21*4a5d661aSToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22*4a5d661aSToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23*4a5d661aSToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24*4a5d661aSToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25*4a5d661aSToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26*4a5d661aSToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27*4a5d661aSToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28*4a5d661aSToomas Soome * SUCH DAMAGE. 29*4a5d661aSToomas Soome * 30*4a5d661aSToomas Soome * @(#)udp.h 8.1 (Berkeley) 6/10/93 31*4a5d661aSToomas Soome * $FreeBSD$ 32*4a5d661aSToomas Soome */ 33*4a5d661aSToomas Soome 34*4a5d661aSToomas Soome #ifndef _NETINET_UDP_H_ 35*4a5d661aSToomas Soome #define _NETINET_UDP_H_ 36*4a5d661aSToomas Soome 37*4a5d661aSToomas Soome /* 38*4a5d661aSToomas Soome * UDP protocol header. 39*4a5d661aSToomas Soome * Per RFC 768, September, 1981. 40*4a5d661aSToomas Soome */ 41*4a5d661aSToomas Soome struct udphdr { 42*4a5d661aSToomas Soome u_short uh_sport; /* source port */ 43*4a5d661aSToomas Soome u_short uh_dport; /* destination port */ 44*4a5d661aSToomas Soome u_short uh_ulen; /* udp length */ 45*4a5d661aSToomas Soome u_short uh_sum; /* udp checksum */ 46*4a5d661aSToomas Soome }; 47*4a5d661aSToomas Soome 48*4a5d661aSToomas Soome /* 49*4a5d661aSToomas Soome * User-settable options (used with setsockopt). 50*4a5d661aSToomas Soome */ 51*4a5d661aSToomas Soome #define UDP_ENCAP 1 52*4a5d661aSToomas Soome 53*4a5d661aSToomas Soome /* Start of reserved space for third-party user-settable options. */ 54*4a5d661aSToomas Soome #define UDP_VENDOR SO_VENDOR 55*4a5d661aSToomas Soome 56*4a5d661aSToomas Soome /* 57*4a5d661aSToomas Soome * UDP Encapsulation of IPsec Packets options. 58*4a5d661aSToomas Soome */ 59*4a5d661aSToomas Soome /* Encapsulation types. */ 60*4a5d661aSToomas Soome #define UDP_ENCAP_ESPINUDP_NON_IKE 1 /* draft-ietf-ipsec-nat-t-ike-00/01 */ 61*4a5d661aSToomas Soome #define UDP_ENCAP_ESPINUDP 2 /* draft-ietf-ipsec-udp-encaps-02+ */ 62*4a5d661aSToomas Soome 63*4a5d661aSToomas Soome /* Default ESP in UDP encapsulation port. */ 64*4a5d661aSToomas Soome #define UDP_ENCAP_ESPINUDP_PORT 500 65*4a5d661aSToomas Soome 66*4a5d661aSToomas Soome /* Maximum UDP fragment size for ESP over UDP. */ 67*4a5d661aSToomas Soome #define UDP_ENCAP_ESPINUDP_MAXFRAGLEN 552 68*4a5d661aSToomas Soome 69*4a5d661aSToomas Soome #endif 70