source: mainline/uspace/srv/net/udp/std.h@ 1d24ad3

/*
 * Copyright (c) 2012 Jiri Svoboda
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup udp
 * @{
 */
/** @file UDP standard definitions
 *
 * Based on IETF RFC 768
 */

#ifndef STD_H
#define STD_H

#include <sys/types.h>

#define IP_PROTO_UDP  17

/** UDP Header */
typedef struct {
        /** Source port */
        uint16_t src_port;
        /** Destination port */
        uint16_t dest_port;
        /** Length (header + data) */
        uint16_t length;
        /* Checksum */
        uint16_t checksum;
} udp_header_t;

/** UDP IPv4 pseudo header */
typedef struct {
        /** Source address */
        uint32_t src_addr;
        /** Destination address */
        uint32_t dest_addr;
        /** Zero */
        uint8_t zero;
        /** Protocol */
        uint8_t protocol;
        /** UDP length */
        uint16_t udp_length;
} udp_phdr_t;

/** UDP IPv6 pseudo header */
typedef struct {
        /** Source address */
        addr128_t src_addr;
        /** Destination address */
        addr128_t dest_addr;
        /** UDP length */
        uint32_t udp_length;
        /** Reserved */
        uint8_t zero[3];
        /** Next header */
        uint8_t next;
} udp_phdr6_t;

#endif

/** @}
 */