The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


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FreeBSD/Linux Kernel Cross Reference
sys/netinet/in_systm.h

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    1 /*-
    2  * SPDX-License-Identifier: BSD-3-Clause
    3  *
    4  * Copyright (c) 1982, 1986, 1993
    5  *      The Regents of the University of California.  All rights reserved.
    6  *
    7  * Redistribution and use in source and binary forms, with or without
    8  * modification, are permitted provided that the following conditions
    9  * are met:
   10  * 1. Redistributions of source code must retain the above copyright
   11  *    notice, this list of conditions and the following disclaimer.
   12  * 2. Redistributions in binary form must reproduce the above copyright
   13  *    notice, this list of conditions and the following disclaimer in the
   14  *    documentation and/or other materials provided with the distribution.
   15  * 3. Neither the name of the University nor the names of its contributors
   16  *    may be used to endorse or promote products derived from this software
   17  *    without specific prior written permission.
   18  *
   19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
   20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
   23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   29  * SUCH DAMAGE.
   30  *
   31  *      @(#)in_systm.h  8.1 (Berkeley) 6/10/93
   32  * $FreeBSD: releng/12.0/sys/netinet/in_systm.h 326023 2017-11-20 19:43:44Z pfg $
   33  */
   34 
   35 #ifndef _NETINET_IN_SYSTM_H_
   36 #define _NETINET_IN_SYSTM_H_
   37 
   38 /*
   39  * Miscellaneous internetwork
   40  * definitions for kernel.
   41  */
   42 
   43 /*
   44  * Network types.
   45  *
   46  * Internally the system keeps counters in the headers with the bytes
   47  * swapped so that VAX instructions will work on them.  It reverses
   48  * the bytes before transmission at each protocol level.  The n_ types
   49  * represent the types with the bytes in ``high-ender'' order. Network
   50  * byte order is usually referered to as big-endian these days rather
   51  * than high-ender, which sadly invokes an Orson Scott Card novel, or
   52  * worse, the movie.
   53  */
   54 typedef u_int16_t n_short;              /* short as received from the net */
   55 typedef u_int32_t n_long;               /* long as received from the net */
   56 
   57 typedef u_int32_t n_time;               /* ms since 00:00 UTC, byte rev */
   58 
   59 #ifdef _KERNEL
   60 struct inpcb;
   61 struct ucred;
   62 
   63 int     cr_canseeinpcb(struct ucred *cred, struct inpcb *inp);
   64 
   65 uint32_t         iptime(void);
   66 #endif
   67 
   68 #endif

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