1e2be04c7SGreg Kroah-Hartman /* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ 2607ca46eSDavid Howells /* 3607ca46eSDavid Howells * INET An implementation of the TCP/IP protocol suite for the LINUX 4607ca46eSDavid Howells * operating system. INET is implemented using the BSD Socket 5607ca46eSDavid Howells * interface as the means of communication with the user level. 6607ca46eSDavid Howells * 7607ca46eSDavid Howells * Definitions for the UDP protocol. 8607ca46eSDavid Howells * 9607ca46eSDavid Howells * Version: @(#)udp.h 1.0.2 04/28/93 10607ca46eSDavid Howells * 11607ca46eSDavid Howells * Author: Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG> 12607ca46eSDavid Howells * 13607ca46eSDavid Howells * This program is free software; you can redistribute it and/or 14607ca46eSDavid Howells * modify it under the terms of the GNU General Public License 15607ca46eSDavid Howells * as published by the Free Software Foundation; either version 16607ca46eSDavid Howells * 2 of the License, or (at your option) any later version. 17607ca46eSDavid Howells */ 18607ca46eSDavid Howells #ifndef _UAPI_LINUX_UDP_H 19607ca46eSDavid Howells #define _UAPI_LINUX_UDP_H 20607ca46eSDavid Howells 21607ca46eSDavid Howells #include <linux/types.h> 22607ca46eSDavid Howells 23607ca46eSDavid Howells struct udphdr { 24607ca46eSDavid Howells __be16 source; 25607ca46eSDavid Howells __be16 dest; 26607ca46eSDavid Howells __be16 len; 27607ca46eSDavid Howells __sum16 check; 28607ca46eSDavid Howells }; 29607ca46eSDavid Howells 30607ca46eSDavid Howells /* UDP socket options */ 31607ca46eSDavid Howells #define UDP_CORK 1 /* Never send partially complete segments */ 32607ca46eSDavid Howells #define UDP_ENCAP 100 /* Set the socket to accept encapsulated packets */ 331c19448cSTom Herbert #define UDP_NO_CHECK6_TX 101 /* Disable sending checksum for UDP6X */ 341c19448cSTom Herbert #define UDP_NO_CHECK6_RX 102 /* Disable accpeting checksum for UDP6 */ 35bec1f6f6SWillem de Bruijn #define UDP_SEGMENT 103 /* Set GSO segmentation size */ 36e20cf8d3SPaolo Abeni #define UDP_GRO 104 /* This socket can receive UDP GRO packets */ 37607ca46eSDavid Howells 38607ca46eSDavid Howells /* UDP encapsulation types */ 39607ca46eSDavid Howells #define UDP_ENCAP_ESPINUDP_NON_IKE 1 /* draft-ietf-ipsec-nat-t-ike-00/01 */ 40607ca46eSDavid Howells #define UDP_ENCAP_ESPINUDP 2 /* draft-ietf-ipsec-udp-encaps-06 */ 41607ca46eSDavid Howells #define UDP_ENCAP_L2TPINUDP 3 /* rfc2661 */ 42459aa660SPablo Neira #define UDP_ENCAP_GTP0 4 /* GSM TS 09.60 */ 43459aa660SPablo Neira #define UDP_ENCAP_GTP1U 5 /* 3GPP TS 29.060 */ 445271953cSDavid Howells #define UDP_ENCAP_RXRPC 6 45*e27cca96SSabrina Dubroca #define TCP_ENCAP_ESPINTCP 7 /* Yikes, this is really xfrm encap types. */ 46607ca46eSDavid Howells 47607ca46eSDavid Howells #endif /* _UAPI_LINUX_UDP_H */ 48