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69 lines
2.3 KiB
C
69 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
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/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* Global definitions for the IP router interface.
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*
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* Version: @(#)route.h 1.0.3 05/27/93
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*
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* Authors: Original taken from Berkeley UNIX 4.3, (c) UCB 1986-1988
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* for the purposes of compatibility only.
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*
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* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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*
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* Changes:
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* Mike McLagan : Routing by source
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _LINUX_ROUTE_H
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#define _LINUX_ROUTE_H
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#include <linux/if.h>
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/* This structure gets passed by the SIOCADDRT and SIOCDELRT calls. */
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struct rtentry {
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unsigned long rt_pad1;
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struct sockaddr rt_dst; /* target address */
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struct sockaddr rt_gateway; /* gateway addr (RTF_GATEWAY) */
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struct sockaddr rt_genmask; /* target network mask (IP) */
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unsigned short rt_flags;
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short rt_pad2;
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unsigned long rt_pad3;
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void *rt_pad4;
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short rt_metric; /* +1 for binary compatibility! */
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char *rt_dev; /* forcing the device at add */
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unsigned long rt_mtu; /* per route MTU/Window */
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#define rt_mss rt_mtu /* Compatibility :-( */
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unsigned long rt_window; /* Window clamping */
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unsigned short rt_irtt; /* Initial RTT */
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};
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#define RTF_UP 0x0001 /* route usable */
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#define RTF_GATEWAY 0x0002 /* destination is a gateway */
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#define RTF_HOST 0x0004 /* host entry (net otherwise) */
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#define RTF_REINSTATE 0x0008 /* reinstate route after tmout */
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#define RTF_DYNAMIC 0x0010 /* created dyn. (by redirect) */
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#define RTF_MODIFIED 0x0020 /* modified dyn. (by redirect) */
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#define RTF_MTU 0x0040 /* specific MTU for this route */
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#define RTF_MSS RTF_MTU /* Compatibility :-( */
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#define RTF_WINDOW 0x0080 /* per route window clamping */
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#define RTF_IRTT 0x0100 /* Initial round trip time */
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#define RTF_REJECT 0x0200 /* Reject route */
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/*
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* <linux/ipv6_route.h> uses RTF values >= 64k
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*/
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#endif /* _LINUX_ROUTE_H */
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