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/ip_divert.h

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    1 /*-
    2  * Copyright (c) 2003 Sam Leffler, Errno Consulting
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer,
   10  *    without modification.
   11  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
   12  *    similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any
   13  *    redistribution must be conditioned upon including a substantially
   14  *    similar Disclaimer requirement for further binary redistribution.
   15  * 3. Neither the names of the above-listed copyright holders nor the names
   16  *    of any contributors may be used to endorse or promote products derived
   17  *    from this software without specific prior written permission.
   18  *
   19  * NO WARRANTY
   20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   21  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   22  * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY
   23  * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
   24  * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY,
   25  * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
   26  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
   27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
   28  * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
   29  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
   30  * THE POSSIBILITY OF SUCH DAMAGES.
   31  *
   32  * $FreeBSD: releng/9.0/sys/netinet/ip_divert.h 201527 2010-01-04 19:01:22Z luigi $
   33  */
   34 
   35 #ifndef _NETINET_IP_DIVERT_H_
   36 #define _NETINET_IP_DIVERT_H_
   37 
   38 /*
   39  * divert has no custom kernel-userland API.
   40  *
   41  * All communication occurs through a sockaddr_in socket where
   42  *
   43  * kernel-->userland
   44  *      sin_port = matching rule, host format;
   45  *      sin_addr = IN: first address of the incoming interface;
   46  *                 OUT: INADDR_ANY
   47  *      sin_zero = if fits, the interface name (max 7 bytes + NUL)
   48  *
   49  * userland->kernel
   50  *      sin_port = restart-rule - 1, host order
   51  *              (we restart at sin_port + 1)
   52  *      sin_addr = IN: address of the incoming interface;
   53  *                 OUT: INADDR_ANY
   54  */
   55 #endif /* _NETINET_IP_DIVERT_H_ */

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