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[runtime] Workaround missing net/route.h in iOS SDK.
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‎mono/metadata/mono-route.c

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#include <sys/socket.h>
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#include <net/if.h>
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#include <net/if_dl.h>
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#include <net/route.h>
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#include <netinet/in.h>
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#include <sys/param.h>
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#include <sys/sysctl.h>

‎mono/metadata/mono-route.h

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#if defined(PLATFORM_MACOSX) || defined(PLATFORM_BSD)
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#include <sys/socket.h>
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#ifdef HOST_IOS
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// The iOS SDK does not provide the net/route.h header but using the Darwin version works fine.
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#include "../../support/ios/net/route.h"
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#else
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#include <net/route.h>
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#endif
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#include <mono/metadata/object-internals.h>
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in_addr_t gateway_from_rtm (struct rt_msghdr *rtm) MONO_INTERNAL;

‎support/ios/net/route.h

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/*
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* Copyright (c) 2000-2008 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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/*
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* Copyright (c) 1980, 1986, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)route.h 8.3 (Berkeley) 4/19/94
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* $FreeBSD: src/sys/net/route.h,v 1.36.2.1 2000/08/16 06:14:23 jayanth Exp $
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*/
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#ifndef _NET_ROUTE_H_
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#define _NET_ROUTE_H_
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#include <sys/appleapiopts.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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/*
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* Kernel resident routing tables.
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*
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* The routing tables are initialized when interface addresses
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* are set by making entries for all directly connected interfaces.
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*/
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/*
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* A route consists of a destination address and a reference
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* to a routing entry. These are often held by protocols
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* in their control blocks, e.g. inpcb.
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*/
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struct route;
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/*
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* These numbers are used by reliable protocols for determining
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* retransmission behavior and are included in the routing structure.
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*/
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struct rt_metrics {
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u_int32_t rmx_locks; /* Kernel must leave these values alone */
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u_int32_t rmx_mtu; /* MTU for this path */
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u_int32_t rmx_hopcount; /* max hops expected */
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int32_t rmx_expire; /* lifetime for route, e.g. redirect */
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u_int32_t rmx_recvpipe; /* inbound delay-bandwidth product */
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u_int32_t rmx_sendpipe; /* outbound delay-bandwidth product */
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u_int32_t rmx_ssthresh; /* outbound gateway buffer limit */
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u_int32_t rmx_rtt; /* estimated round trip time */
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u_int32_t rmx_rttvar; /* estimated rtt variance */
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u_int32_t rmx_pksent; /* packets sent using this route */
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u_int32_t rmx_filler[4]; /* will be used for T/TCP later */
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};
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/*
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* rmx_rtt and rmx_rttvar are stored as microseconds;
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*/
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#define RTM_RTTUNIT 1000000 /* units for rtt, rttvar, as units per sec */
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/*
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* We distinguish between routes to hosts and routes to networks,
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* preferring the former if available. For each route we infer
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* the interface to use from the gateway address supplied when
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* the route was entered. Routes that forward packets through
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* gateways are marked so that the output routines know to address the
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* gateway rather than the ultimate destination.
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*/
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#define RTF_UP 0x1 /* route usable */
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#define RTF_GATEWAY 0x2 /* destination is a gateway */
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#define RTF_HOST 0x4 /* host entry (net otherwise) */
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#define RTF_REJECT 0x8 /* host or net unreachable */
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#define RTF_DYNAMIC 0x10 /* created dynamically (by redirect) */
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#define RTF_MODIFIED 0x20 /* modified dynamically (by redirect) */
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#define RTF_DONE 0x40 /* message confirmed */
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#define RTF_DELCLONE 0x80 /* delete cloned route */
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#define RTF_CLONING 0x100 /* generate new routes on use */
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#define RTF_XRESOLVE 0x200 /* external daemon resolves name */
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#define RTF_LLINFO 0x400 /* generated by link layer (e.g. ARP) */
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#define RTF_STATIC 0x800 /* manually added */
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#define RTF_BLACKHOLE 0x1000 /* just discard pkts (during updates) */
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#define RTF_PROTO2 0x4000 /* protocol specific routing flag */
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#define RTF_PROTO1 0x8000 /* protocol specific routing flag */
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#define RTF_PRCLONING 0x10000 /* protocol requires cloning */
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#define RTF_WASCLONED 0x20000 /* route generated through cloning */
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#define RTF_PROTO3 0x40000 /* protocol specific routing flag */
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/* 0x80000 unused */
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#define RTF_PINNED 0x100000 /* future use */
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#define RTF_LOCAL 0x200000 /* route represents a local address */
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#define RTF_BROADCAST 0x400000 /* route represents a bcast address */
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#define RTF_MULTICAST 0x800000 /* route represents a mcast address */
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#define RTF_IFSCOPE 0x1000000 /* has valid interface scope */
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#define RTF_CONDEMNED 0x2000000 /* defunct; no longer modifiable */
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/* 0x4000000 and up unassigned */
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/*
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* Routing statistics.
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*/
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struct rtstat {
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short rts_badredirect; /* bogus redirect calls */
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short rts_dynamic; /* routes created by redirects */
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short rts_newgateway; /* routes modified by redirects */
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short rts_unreach; /* lookups which failed */
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short rts_wildcard; /* lookups satisfied by a wildcard */
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};
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/*
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* Structures for routing messages.
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*/
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struct rt_msghdr {
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u_short rtm_msglen; /* to skip over non-understood messages */
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u_char rtm_version; /* future binary compatibility */
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u_char rtm_type; /* message type */
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u_short rtm_index; /* index for associated ifp */
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int rtm_flags; /* flags, incl. kern & message, e.g. DONE */
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int rtm_addrs; /* bitmask identifying sockaddrs in msg */
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pid_t rtm_pid; /* identify sender */
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int rtm_seq; /* for sender to identify action */
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int rtm_errno; /* why failed */
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int rtm_use; /* from rtentry */
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u_int32_t rtm_inits; /* which metrics we are initializing */
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struct rt_metrics rtm_rmx; /* metrics themselves */
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};
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struct rt_msghdr2 {
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u_short rtm_msglen; /* to skip over non-understood messages */
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u_char rtm_version; /* future binary compatibility */
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u_char rtm_type; /* message type */
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u_short rtm_index; /* index for associated ifp */
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int rtm_flags; /* flags, incl. kern & message, e.g. DONE */
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int rtm_addrs; /* bitmask identifying sockaddrs in msg */
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int32_t rtm_refcnt; /* reference count */
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int rtm_parentflags; /* flags of the parent route */
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int rtm_reserved; /* reserved field set to 0 */
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int rtm_use; /* from rtentry */
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u_int32_t rtm_inits; /* which metrics we are initializing */
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struct rt_metrics rtm_rmx; /* metrics themselves */
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};
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#define RTM_VERSION 5 /* Up the ante and ignore older versions */
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/*
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* Message types.
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*/
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#define RTM_ADD 0x1 /* Add Route */
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#define RTM_DELETE 0x2 /* Delete Route */
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#define RTM_CHANGE 0x3 /* Change Metrics or flags */
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#define RTM_GET 0x4 /* Report Metrics */
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#define RTM_LOSING 0x5 /* Kernel Suspects Partitioning */
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#define RTM_REDIRECT 0x6 /* Told to use different route */
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#define RTM_MISS 0x7 /* Lookup failed on this address */
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#define RTM_LOCK 0x8 /* fix specified metrics */
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#define RTM_OLDADD 0x9 /* caused by SIOCADDRT */
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#define RTM_OLDDEL 0xa /* caused by SIOCDELRT */
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#define RTM_RESOLVE 0xb /* req to resolve dst to LL addr */
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#define RTM_NEWADDR 0xc /* address being added to iface */
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#define RTM_DELADDR 0xd /* address being removed from iface */
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#define RTM_IFINFO 0xe /* iface going up/down etc. */
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#define RTM_NEWMADDR 0xf /* mcast group membership being added to if */
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#define RTM_DELMADDR 0x10 /* mcast group membership being deleted */
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#define RTM_IFINFO2 0x12 /* */
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#define RTM_NEWMADDR2 0x13 /* */
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#define RTM_GET2 0x14 /* */
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/*
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* Bitmask values for rtm_inits and rmx_locks.
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*/
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#define RTV_MTU 0x1 /* init or lock _mtu */
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#define RTV_HOPCOUNT 0x2 /* init or lock _hopcount */
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#define RTV_EXPIRE 0x4 /* init or lock _expire */
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#define RTV_RPIPE 0x8 /* init or lock _recvpipe */
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#define RTV_SPIPE 0x10 /* init or lock _sendpipe */
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#define RTV_SSTHRESH 0x20 /* init or lock _ssthresh */
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#define RTV_RTT 0x40 /* init or lock _rtt */
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#define RTV_RTTVAR 0x80 /* init or lock _rttvar */
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/*
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* Bitmask values for rtm_addrs.
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*/
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#define RTA_DST 0x1 /* destination sockaddr present */
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#define RTA_GATEWAY 0x2 /* gateway sockaddr present */
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#define RTA_NETMASK 0x4 /* netmask sockaddr present */
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#define RTA_GENMASK 0x8 /* cloning mask sockaddr present */
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#define RTA_IFP 0x10 /* interface name sockaddr present */
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#define RTA_IFA 0x20 /* interface addr sockaddr present */
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#define RTA_AUTHOR 0x40 /* sockaddr for author of redirect */
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#define RTA_BRD 0x80 /* for NEWADDR, broadcast or p-p dest addr */
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/*
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* Index offsets for sockaddr array for alternate internal encoding.
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*/
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#define RTAX_DST 0 /* destination sockaddr present */
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#define RTAX_GATEWAY 1 /* gateway sockaddr present */
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#define RTAX_NETMASK 2 /* netmask sockaddr present */
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#define RTAX_GENMASK 3 /* cloning mask sockaddr present */
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#define RTAX_IFP 4 /* interface name sockaddr present */
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#define RTAX_IFA 5 /* interface addr sockaddr present */
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#define RTAX_AUTHOR 6 /* sockaddr for author of redirect */
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#define RTAX_BRD 7 /* for NEWADDR, broadcast or p-p dest addr */
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#define RTAX_MAX 8 /* size of array to allocate */
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struct rt_addrinfo {
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int rti_addrs;
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struct sockaddr *rti_info[RTAX_MAX];
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};
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struct route_cb {
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int ip_count;
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int ip6_count;
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int ipx_count;
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int ns_count;
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int iso_count;
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int any_count;
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};
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#endif

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