| 0,0 → 1,79 |
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| /* |
| * Copyright (c) 2009 Lukas Mejdrech |
| * 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 |
| * User datagram protocol header and options definitions. |
| * Names according to the linux src/include/linux/udp.h header file. |
| */ |
| |
| #ifndef __NET_UDP_HEADER_H__ |
| #define __NET_UDP_HEADER_H__ |
| |
| #include <sys/types.h> |
| |
| /** Type definition of the user datagram header. |
| * @see udp_header |
| */ |
| typedef struct udp_header udp_header_t; |
| |
| /** Type definition of the user datagram header pointer. |
| * @see udp_header |
| */ |
| typedef udp_header_t * udp_header_ref; |
| |
| /** User datagram header. |
| */ |
| struct udp_header{ |
| /** Source Port is an optional field, when meaningful, it indicates the port of the sending process, and may be assumed to be the port to which a reply should be addressed in the absence of any other information. |
| * If not used, a value of zero is inserted. |
| */ |
| uint16_t source; |
| /** Destination port has a meaning within the context of a particular internet destination address. |
| */ |
| uint16_t dest; |
| /** Length is the length in octets of this user datagram including this header and the data. |
| * This means the minimum value of the length is eight. |
| */ |
| uint16_t len; |
| /** Checksum is the 16-bit one's complement of the one's complement sum of a pseudo header of information from the IP header, the UDP header, and the data, padded with zero octets at the end (if necessary) to make a multiple of two octets. |
| * The pseudo header conceptually prefixed to the UDP header contains the source address, the destination address, the protocol, and the UDP length. |
| * This information gives protection against misrouted datagrams. |
| * If the computed checksum is zero, it is transmitted as all ones (the equivalent in one's complement arithmetic). |
| * An all zero transmitted checksum value means that the transmitter generated no checksum (for debugging or for higher level protocols that don't care). |
| */ |
| uint16_t check; |
| } __attribute__ ((packed)); |
| |
| #endif |
| |
| /** @} |
| */ |
| Property changes: |
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| Added: svn:eol-style |
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| +native |
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| \ No newline at end of property |
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