1 | /* |
2 | * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. |
3 | * |
4 | * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ |
5 | * |
6 | * This file contains Original Code and/or Modifications of Original Code |
7 | * as defined in and that are subject to the Apple Public Source License |
8 | * Version 2.0 (the 'License'). You may not use this file except in |
9 | * compliance with the License. The rights granted to you under the License |
10 | * may not be used to create, or enable the creation or redistribution of, |
11 | * unlawful or unlicensed copies of an Apple operating system, or to |
12 | * circumvent, violate, or enable the circumvention or violation of, any |
13 | * terms of an Apple operating system software license agreement. |
14 | * |
15 | * Please obtain a copy of the License at |
16 | * http://www.opensource.apple.com/apsl/ and read it before using this file. |
17 | * |
18 | * The Original Code and all software distributed under the License are |
19 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER |
20 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
21 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, |
22 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
23 | * Please see the License for the specific language governing rights and |
24 | * limitations under the License. |
25 | * |
26 | * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ |
27 | */ |
28 | /* |
29 | * Copyright (c) 1982, 1986, 1993 |
30 | * The Regents of the University of California. All rights reserved. |
31 | * |
32 | * Redistribution and use in source and binary forms, with or without |
33 | * modification, are permitted provided that the following conditions |
34 | * are met: |
35 | * 1. Redistributions of source code must retain the above copyright |
36 | * notice, this list of conditions and the following disclaimer. |
37 | * 2. Redistributions in binary form must reproduce the above copyright |
38 | * notice, this list of conditions and the following disclaimer in the |
39 | * documentation and/or other materials provided with the distribution. |
40 | * 3. All advertising materials mentioning features or use of this software |
41 | * must display the following acknowledgement: |
42 | * This product includes software developed by the University of |
43 | * California, Berkeley and its contributors. |
44 | * 4. Neither the name of the University nor the names of its contributors |
45 | * may be used to endorse or promote products derived from this software |
46 | * without specific prior written permission. |
47 | * |
48 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
49 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
50 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
51 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
52 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
53 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
54 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
55 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
56 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
57 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
58 | * SUCH DAMAGE. |
59 | * |
60 | * @(#)udp.h 8.1 (Berkeley) 6/10/93 |
61 | */ |
62 | |
63 | #ifndef _NETINET_UDP_H_ |
64 | #define _NETINET_UDP_H_ |
65 | |
66 | #ifndef DRIVERKIT |
67 | #include <sys/appleapiopts.h> |
68 | #include <sys/types.h> /* u_short */ |
69 | #else |
70 | #include <sys/_types.h> |
71 | #include <sys/_types/_u_char.h> |
72 | #include <sys/_types/_u_short.h> |
73 | #endif /* DRIVERKIT */ |
74 | |
75 | /* |
76 | * Udp protocol header. |
77 | * Per RFC 768, September, 1981. |
78 | */ |
79 | struct udphdr { |
80 | u_short uh_sport; /* source port */ |
81 | u_short uh_dport; /* destination port */ |
82 | u_short uh_ulen; /* udp length */ |
83 | u_short uh_sum; /* udp checksum */ |
84 | }; |
85 | |
86 | /* |
87 | * User-settable options (used with setsockopt). |
88 | */ |
89 | #define UDP_NOCKSUM 0x01 /* don't checksum outbound payloads */ |
90 | #ifdef PRIVATE |
91 | #define UDP_KEEPALIVE_OFFLOAD 0x02 /* Send keep-alive at a given interval */ |
92 | #endif /* PRIVATE */ |
93 | |
94 | #ifdef PRIVATE |
95 | /* |
96 | * This is a mechanism to offload keep-alive or heartbeat messages |
97 | * to the Wifi driver when the host processor is sleeping. The application |
98 | * will give a small amount of data that can be placed in the message. The |
99 | * application will also specify an interval at which these messages |
100 | * should be sent. |
101 | * |
102 | * The purpose of these messages is to detect loss of connectivity in |
103 | * peer-to-peer communication without keeping the host processor awake. |
104 | * |
105 | * The application will pass this data to the kernel using setsockopt. It |
106 | * can set the interval to 0 to disable keepalive offload. |
107 | */ |
108 | #define UDP_KEEPALIVE_OFFLOAD_DATA_SIZE 32 |
109 | |
110 | /* Maximum keep alive interval in seconds */ |
111 | #define UDP_KEEPALIVE_INTERVAL_MAX_SECONDS 65536 |
112 | |
113 | struct udp_keepalive_offload { |
114 | u_char ka_data[UDP_KEEPALIVE_OFFLOAD_DATA_SIZE]; |
115 | u_int16_t ka_interval; /* interval in seconds */ |
116 | u_int8_t ka_data_len; /* valid length of ka_data */ |
117 | u_int8_t ka_type; /* type of application */ |
118 | #define UDP_KEEPALIVE_OFFLOAD_TYPE_AIRPLAY 0x1 |
119 | }; |
120 | |
121 | #endif /* PRIVATE */ |
122 | #endif /* _NETINET_UDP_H */ |
123 | |