udp.h

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/*
 * INET     An implementation of the TCP/IP protocol suite for the LINUX
 *      operating system.  INET is implemented using the  BSD Socket
 *      interface as the means of communication with the user level.
 *
 *      Definitions for the UDP protocol.
 *
 * Version: @(#)udp.h   1.0.2   04/28/93
 *
 * Author:  Fred N. van Kempen, <[email protected]>
 *
 *      This program is free software; you can redistribute it and/or
 *      modify it under the terms of the GNU General Public License
 *      as published by the Free Software Foundation; either version
 *      2 of the License, or (at your option) any later version.
 */
#ifndef _UAPI_LINUX_UDP_H
#define _UAPI_LINUX_UDP_H

#include <linux/types.h>

struct udphdr {
    __be16  source;
    __be16  dest;
    __be16  len;
    __sum16 check;
};

/* UDP socket options */
#define UDP_CORK    1   /* Never send partially complete segments */
#define UDP_ENCAP   100 /* Set the socket to accept encapsulated packets */

/* UDP encapsulation types */
#define UDP_ENCAP_ESPINUDP_NON_IKE  1 /* draft-ietf-ipsec-nat-t-ike-00/01 */
#define UDP_ENCAP_ESPINUDP  2 /* draft-ietf-ipsec-udp-encaps-06 */
#define UDP_ENCAP_L2TPINUDP 3 /* rfc2661 */


#endif /* _UAPI_LINUX_UDP_H */