/*
 * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * Copyright (c) 1982, 1986 Regents of the University of California.
 * All rights reserved.  The Berkeley software License Agreement
 * specifies the terms and conditions for redistribution.
 */

/*
 * Udp protocol header.
 * Per RFC 768, September, 1981.
 */

#ifndef _NETINET_UDP_H
#define _NETINET_UDP_H

#ifdef  __cplusplus
extern "C" {
#endif

struct udphdr {
        in_port_t       uh_sport;               /* source port */
        in_port_t       uh_dport;               /* destination port */
        int16_t         uh_ulen;                /* udp length */
        uint16_t        uh_sum;                 /* udp checksum */
};

/* Option definitions. */
#define UDP_ANONPRIVBIND        0x0100          /* for internal use only */
#define UDP_EXCLBIND            0x0101          /* for internal use only */
#define UDP_RCVHDR              0x0102          /* for internal use only */
#define UDP_NAT_T_ENDPOINT      0x0103          /* for internal use only */
#define UDP_SRCPORT_HASH        0x0104          /* for internal use only */

/*
 * Hash definitions for UDP_SRCPORT_HASH that effectively tell UDP how to go
 * handle UDP_SRCPORT_HASH.
 */
#define UDP_HASH_DISABLE        0x0000          /* for internal use only */
#define UDP_HASH_VXLAN          0x0001          /* for internal use only */

/*
 * Following option in UDP_ namespace required to be exposed through
 * <xti.h> (It also requires exposing options not implemented). The options
 * with potential for conflicts use #ifndef guards.
 *
 */
#ifndef UDP_CHECKSUM
#define UDP_CHECKSUM    0x0600
#endif

#ifdef  __cplusplus
}
#endif

#endif  /* _NETINET_UDP_H */