122 lines
5 KiB
C
122 lines
5 KiB
C
/*
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* Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*
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* Copyright (c) 1982, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)udp.h 8.1 (Berkeley) 6/10/93
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*/
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#ifndef _NETINET_UDP_H_
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#define _NETINET_UDP_H_
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#ifndef DRIVERKIT
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#include <sys/appleapiopts.h>
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#include <sys/types.h> /* u_short */
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#else
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#include <sys/_types.h>
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#include <sys/_types/_u_char.h>
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#include <sys/_types/_u_short.h>
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#endif /* DRIVERKIT */
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/*
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* Udp protocol header.
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* Per RFC 768, September, 1981.
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*/
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struct udphdr {
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u_short uh_sport; /* source port */
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u_short uh_dport; /* destination port */
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u_short uh_ulen; /* udp length */
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u_short uh_sum; /* udp checksum */
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};
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/*
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* User-settable options (used with setsockopt).
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*/
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#define UDP_NOCKSUM 0x01 /* don't checksum outbound payloads */
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#ifdef PRIVATE
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#define UDP_KEEPALIVE_OFFLOAD 0x02 /* Send keep-alive at a given interval */
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#endif /* PRIVATE */
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#ifdef PRIVATE
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/*
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* This is a mechanism to offload keep-alive or heartbeat messages
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* to the Wifi driver when the host processor is sleeping. The application
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* will give a small amount of data that can be placed in the message. The
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* application will also specify an interval at which these messages
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* should be sent.
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*
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* The purpose of these messages is to detect loss of connectivity in
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* peer-to-peer communication without keeping the host processor awake.
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*
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* The application will pass this data to the kernel using setsockopt. It
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* can set the interval to 0 to disable keepalive offload.
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*/
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#define UDP_KEEPALIVE_OFFLOAD_DATA_SIZE 32
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/* Maximum keep alive interval in seconds */
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#define UDP_KEEPALIVE_INTERVAL_MAX_SECONDS 65536
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struct udp_keepalive_offload {
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u_char ka_data[UDP_KEEPALIVE_OFFLOAD_DATA_SIZE];
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u_int16_t ka_interval; /* interval in seconds */
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u_int8_t ka_data_len; /* valid length of ka_data */
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u_int8_t ka_type; /* type of application */
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#define UDP_KEEPALIVE_OFFLOAD_TYPE_AIRPLAY 0x1
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};
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#endif /* PRIVATE */
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#endif /* _NETINET_UDP_H */
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