1*199767f8SToomas Soome /*- 2*199767f8SToomas Soome * Copyright (c) 1982, 1986, 1993 3*199767f8SToomas Soome * The Regents of the University of California. 4*199767f8SToomas Soome * All rights reserved. 5*199767f8SToomas Soome * 6*199767f8SToomas Soome * Redistribution and use in source and binary forms, with or without 7*199767f8SToomas Soome * modification, are permitted provided that the following conditions 8*199767f8SToomas Soome * are met: 9*199767f8SToomas Soome * 1. Redistributions of source code must retain the above copyright 10*199767f8SToomas Soome * notice, this list of conditions and the following disclaimer. 11*199767f8SToomas Soome * 2. Redistributions in binary form must reproduce the above copyright 12*199767f8SToomas Soome * notice, this list of conditions and the following disclaimer in the 13*199767f8SToomas Soome * documentation and/or other materials provided with the distribution. 14*199767f8SToomas Soome * 4. Neither the name of the University nor the names of its contributors 15*199767f8SToomas Soome * may be used to endorse or promote products derived from this software 16*199767f8SToomas Soome * without specific prior written permission. 17*199767f8SToomas Soome * 18*199767f8SToomas Soome * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 19*199767f8SToomas Soome * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20*199767f8SToomas Soome * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21*199767f8SToomas Soome * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 22*199767f8SToomas Soome * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23*199767f8SToomas Soome * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24*199767f8SToomas Soome * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25*199767f8SToomas Soome * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26*199767f8SToomas Soome * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27*199767f8SToomas Soome * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28*199767f8SToomas Soome * SUCH DAMAGE. 29*199767f8SToomas Soome * 30*199767f8SToomas Soome * @(#)udp.h 8.1 (Berkeley) 6/10/93 31*199767f8SToomas Soome * $FreeBSD$ 32*199767f8SToomas Soome */ 33*199767f8SToomas Soome 34*199767f8SToomas Soome #ifndef _NETINET_UDP_H_ 35*199767f8SToomas Soome #define _NETINET_UDP_H_ 36*199767f8SToomas Soome 37*199767f8SToomas Soome /* 38*199767f8SToomas Soome * UDP protocol header. 39*199767f8SToomas Soome * Per RFC 768, September, 1981. 40*199767f8SToomas Soome */ 41*199767f8SToomas Soome struct udphdr { 42*199767f8SToomas Soome u_short uh_sport; /* source port */ 43*199767f8SToomas Soome u_short uh_dport; /* destination port */ 44*199767f8SToomas Soome u_short uh_ulen; /* udp length */ 45*199767f8SToomas Soome u_short uh_sum; /* udp checksum */ 46*199767f8SToomas Soome }; 47*199767f8SToomas Soome 48*199767f8SToomas Soome /* 49*199767f8SToomas Soome * User-settable options (used with setsockopt). 50*199767f8SToomas Soome */ 51*199767f8SToomas Soome #define UDP_ENCAP 1 52*199767f8SToomas Soome 53*199767f8SToomas Soome /* Start of reserved space for third-party user-settable options. */ 54*199767f8SToomas Soome #define UDP_VENDOR SO_VENDOR 55*199767f8SToomas Soome 56*199767f8SToomas Soome /* 57*199767f8SToomas Soome * UDP Encapsulation of IPsec Packets options. 58*199767f8SToomas Soome */ 59*199767f8SToomas Soome /* Encapsulation types. */ 60*199767f8SToomas Soome #define UDP_ENCAP_ESPINUDP_NON_IKE 1 /* draft-ietf-ipsec-nat-t-ike-00/01 */ 61*199767f8SToomas Soome #define UDP_ENCAP_ESPINUDP 2 /* draft-ietf-ipsec-udp-encaps-02+ */ 62*199767f8SToomas Soome 63*199767f8SToomas Soome /* Default ESP in UDP encapsulation port. */ 64*199767f8SToomas Soome #define UDP_ENCAP_ESPINUDP_PORT 500 65*199767f8SToomas Soome 66*199767f8SToomas Soome /* Maximum UDP fragment size for ESP over UDP. */ 67*199767f8SToomas Soome #define UDP_ENCAP_ESPINUDP_MAXFRAGLEN 552 68*199767f8SToomas Soome 69*199767f8SToomas Soome #endif 70