root / lab4 / .minix-src / include / netinet / udp.h @ 13
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| 1 | 13 | up20180614 | /* $NetBSD: udp.h,v 1.16 2012/06/22 14:54:35 christos Exp $ */
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| 2 | |||
| 3 | /*
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| 4 | * Copyright (c) 1982, 1986, 1993
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| 5 | * The Regents of the University of California. All rights reserved.
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| 6 | *
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| 7 | * Redistribution and use in source and binary forms, with or without
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| 8 | * modification, are permitted provided that the following conditions
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| 9 | * are met:
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| 10 | * 1. Redistributions of source code must retain the above copyright
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| 11 | * notice, this list of conditions and the following disclaimer.
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| 12 | * 2. Redistributions in binary form must reproduce the above copyright
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| 13 | * notice, this list of conditions and the following disclaimer in the
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| 14 | * documentation and/or other materials provided with the distribution.
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| 15 | * 3. Neither the name of the University nor the names of its contributors
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| 16 | * may be used to endorse or promote products derived from this software
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| 17 | * without specific prior written permission.
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| 18 | *
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| 19 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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| 20 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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| 21 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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| 22 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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| 23 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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| 24 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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| 25 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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| 26 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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| 27 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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| 28 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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| 29 | * SUCH DAMAGE.
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| 30 | *
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| 31 | * @(#)udp.h 8.1 (Berkeley) 6/10/93
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| 32 | */
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| 33 | |||
| 34 | #ifndef _NETINET_UDP_H_
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| 35 | #define _NETINET_UDP_H_
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| 36 | |||
| 37 | #include <sys/types.h> |
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| 38 | /*
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| 39 | * Udp protocol header.
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| 40 | * Per RFC 768, September, 1981.
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| 41 | */
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| 42 | struct udphdr {
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| 43 | uint16_t uh_sport; /* source port */
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| 44 | uint16_t uh_dport; /* destination port */
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| 45 | uint16_t uh_ulen; /* udp length */
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| 46 | uint16_t uh_sum; /* udp checksum */
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| 47 | } __packed; |
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| 48 | |||
| 49 | /* socket options for UDP */
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| 50 | #define UDP_ENCAP 100 |
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| 51 | |||
| 52 | /* Encapsulation types */
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| 53 | #define UDP_ENCAP_ESPINUDP_NON_IKE 1 /* draft-ietf-ipsec-nat-t-ike-00/01 */ |
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| 54 | #define UDP_ENCAP_ESPINUDP 2 /* draft-ietf-ipsec-udp-encaps-06 */ |
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| 55 | |||
| 56 | /* Default encapsulation port */
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| 57 | #define UDP_ENCAP_ESPINUDP_PORT 500 |
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| 58 | |||
| 59 | /* Maximum UDP fragment size for ESP over UDP */
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| 60 | #define UDP_ENCAP_ESPINUDP_MAXFRAGLEN 552 |
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| 61 | |||
| 62 | #endif /* !_NETINET_UDP_H_ */ |