1*01624e6fSBen Gras /* $NetBSD: udp.h,v 1.16 2012/06/22 14:54:35 christos Exp $ */ 27f2d47d8SEvgeniy Ivanov 37f2d47d8SEvgeniy Ivanov /* 47f2d47d8SEvgeniy Ivanov * Copyright (c) 1982, 1986, 1993 57f2d47d8SEvgeniy Ivanov * The Regents of the University of California. All rights reserved. 67f2d47d8SEvgeniy Ivanov * 77f2d47d8SEvgeniy Ivanov * Redistribution and use in source and binary forms, with or without 87f2d47d8SEvgeniy Ivanov * modification, are permitted provided that the following conditions 97f2d47d8SEvgeniy Ivanov * are met: 107f2d47d8SEvgeniy Ivanov * 1. Redistributions of source code must retain the above copyright 117f2d47d8SEvgeniy Ivanov * notice, this list of conditions and the following disclaimer. 127f2d47d8SEvgeniy Ivanov * 2. Redistributions in binary form must reproduce the above copyright 137f2d47d8SEvgeniy Ivanov * notice, this list of conditions and the following disclaimer in the 147f2d47d8SEvgeniy Ivanov * documentation and/or other materials provided with the distribution. 157f2d47d8SEvgeniy Ivanov * 3. Neither the name of the University nor the names of its contributors 167f2d47d8SEvgeniy Ivanov * may be used to endorse or promote products derived from this software 177f2d47d8SEvgeniy Ivanov * without specific prior written permission. 187f2d47d8SEvgeniy Ivanov * 197f2d47d8SEvgeniy Ivanov * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 207f2d47d8SEvgeniy Ivanov * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 217f2d47d8SEvgeniy Ivanov * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 227f2d47d8SEvgeniy Ivanov * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 237f2d47d8SEvgeniy Ivanov * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 247f2d47d8SEvgeniy Ivanov * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 257f2d47d8SEvgeniy Ivanov * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 267f2d47d8SEvgeniy Ivanov * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 277f2d47d8SEvgeniy Ivanov * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 287f2d47d8SEvgeniy Ivanov * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 297f2d47d8SEvgeniy Ivanov * SUCH DAMAGE. 307f2d47d8SEvgeniy Ivanov * 317f2d47d8SEvgeniy Ivanov * @(#)udp.h 8.1 (Berkeley) 6/10/93 327f2d47d8SEvgeniy Ivanov */ 337f2d47d8SEvgeniy Ivanov 347f2d47d8SEvgeniy Ivanov #ifndef _NETINET_UDP_H_ 357f2d47d8SEvgeniy Ivanov #define _NETINET_UDP_H_ 367f2d47d8SEvgeniy Ivanov 377f2d47d8SEvgeniy Ivanov #include <sys/types.h> 387f2d47d8SEvgeniy Ivanov /* 397f2d47d8SEvgeniy Ivanov * Udp protocol header. 407f2d47d8SEvgeniy Ivanov * Per RFC 768, September, 1981. 417f2d47d8SEvgeniy Ivanov */ 427f2d47d8SEvgeniy Ivanov struct udphdr { 437f2d47d8SEvgeniy Ivanov uint16_t uh_sport; /* source port */ 447f2d47d8SEvgeniy Ivanov uint16_t uh_dport; /* destination port */ 457f2d47d8SEvgeniy Ivanov uint16_t uh_ulen; /* udp length */ 467f2d47d8SEvgeniy Ivanov uint16_t uh_sum; /* udp checksum */ 477f2d47d8SEvgeniy Ivanov } __packed; 487f2d47d8SEvgeniy Ivanov 497f2d47d8SEvgeniy Ivanov /* socket options for UDP */ 507f2d47d8SEvgeniy Ivanov #define UDP_ENCAP 100 517f2d47d8SEvgeniy Ivanov 527f2d47d8SEvgeniy Ivanov /* Encapsulation types */ 537f2d47d8SEvgeniy Ivanov #define UDP_ENCAP_ESPINUDP_NON_IKE 1 /* draft-ietf-ipsec-nat-t-ike-00/01 */ 547f2d47d8SEvgeniy Ivanov #define UDP_ENCAP_ESPINUDP 2 /* draft-ietf-ipsec-udp-encaps-06 */ 557f2d47d8SEvgeniy Ivanov 567f2d47d8SEvgeniy Ivanov /* Default encapsulation port */ 577f2d47d8SEvgeniy Ivanov #define UDP_ENCAP_ESPINUDP_PORT 500 587f2d47d8SEvgeniy Ivanov 597f2d47d8SEvgeniy Ivanov /* Maximum UDP fragment size for ESP over UDP */ 607f2d47d8SEvgeniy Ivanov #define UDP_ENCAP_ESPINUDP_MAXFRAGLEN 552 617f2d47d8SEvgeniy Ivanov 627f2d47d8SEvgeniy Ivanov #endif /* !_NETINET_UDP_H_ */ 63