1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 2003 Sam Leffler, Errno Consulting 5 * 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 * without modification. 13 * 2. Redistributions in binary form must reproduce at minimum a disclaimer 14 * similar to the "NO WARRANTY" disclaimer below ("Disclaimer") and any 15 * redistribution must be conditioned upon including a substantially 16 * similar Disclaimer requirement for further binary redistribution. 17 * 3. Neither the names of the above-listed copyright holders nor the names 18 * of any contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * NO WARRANTY 22 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 23 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 24 * LIMITED TO, THE IMPLIED WARRANTIES OF NONINFRINGEMENT, MERCHANTIBILITY 25 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 26 * THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, 27 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 30 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGES. 33 * 34 * $FreeBSD$ 35 */ 36 37 #ifndef _NETINET_IP_DIVERT_H_ 38 #define _NETINET_IP_DIVERT_H_ 39 40 /* 41 * divert has no custom kernel-userland API. 42 * 43 * All communication occurs through a sockaddr_in socket where 44 * 45 * kernel-->userland 46 * sin_port = matching rule, host format; 47 * sin_addr = IN: first address of the incoming interface; 48 * OUT: INADDR_ANY 49 * sin_zero = if fits, the interface name (max 7 bytes + NUL) 50 * 51 * userland->kernel 52 * sin_port = restart-rule - 1, host order 53 * (we restart at sin_port + 1) 54 * sin_addr = IN: address of the incoming interface; 55 * OUT: INADDR_ANY 56 */ 57 #endif /* _NETINET_IP_DIVERT_H_ */ 58