xref: /xnu-8792.41.9/bsd/netinet/in_systm.h (revision 5c2921b07a2480ab43ec66f5b9e41cb872bc554f)
1 /*
2  * Copyright (c) 2000-2018 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  *	@(#)in_systm.h	8.1 (Berkeley) 6/10/93
61  * $FreeBSD: src/sys/netinet/in_systm.h,v 1.9 1999/12/29 04:41:00 peter Exp $
62  */
63 
64 #ifndef _NETINET_IN_SYSTM_H_
65 #define _NETINET_IN_SYSTM_H_
66 
67 #ifndef DRIVERKIT
68 #include <sys/appleapiopts.h>
69 #endif /* DRIVERKIT */
70 
71 #include <sys/_types.h>
72 
73 /*
74  * Miscellaneous internetwork
75  * definitions for kernel.
76  */
77 
78 /*
79  * Network types.
80  *
81  * Internally the system keeps counters in the headers with the bytes
82  * swapped so that VAX instructions will work on them.  It reverses
83  * the bytes before transmission at each protocol level.  The n_ types
84  * represent the types with the bytes in ``high-ender'' order.
85  */
86 typedef __uint16_t n_short;             /* short as received from the net */
87 typedef __uint32_t n_long;              /* long as received from the net */
88 
89 typedef __uint32_t n_time;              /* ms since 00:00 GMT, byte rev */
90 
91 #ifdef BSD_KERNEL_PRIVATE
92 #define ABS(v) (((v) > 0) ? (v) : -(v))
93 
94 #ifndef DRIVERKIT
95 u_int32_t iptime(void);
96 #endif /* DRIVERKIT */
97 #endif /* BSD_KERNEL_PRIVATE */
98 #endif /* _NETINET_IN_SYSTM_H_ */
99