author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
Wed, 15 Sep 2010 14:02:55 +0300 | |
branch | RCL_3 |
changeset 64 | c44f36bb61a3 |
parent 0 | e4d67989cc36 |
child 75 | 254b651f304e |
permissions | -rw-r--r-- |
0
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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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* 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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* 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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* Portions Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). All rights reserved. |
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* @(#)route.h 8.4 (Berkeley) 1/9/95 |
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* $FreeBSD: src/sys/net/route.h,v 1.63 2005/01/07 01:45:35 imp Exp $ |
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*/ |
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|
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#ifndef _NET_ROUTE_H_ |
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#define _NET_ROUTE_H_ |
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|
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#ifndef __SYMBIAN32__ |
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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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/* |
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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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struct rtentry *ro_rt; |
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struct sockaddr ro_dst; |
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}; |
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#endif //__SYMBIAN32__ |
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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_lite { |
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u_long rmx_mtu; /* MTU for this path */ |
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u_long rmx_expire; /* lifetime for route, e.g. redirect */ |
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u_long rmx_pksent; /* packets sent using this route */ |
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}; |
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|
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struct rt_metrics { |
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u_long rmx_locks; /* Kernel must leave these values alone */ |
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u_long rmx_mtu; /* MTU for this path */ |
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u_long rmx_hopcount; /* max hops expected */ |
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u_long rmx_expire; /* lifetime for route, e.g. redirect */ |
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u_long rmx_recvpipe; /* inbound delay-bandwidth product */ |
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u_long rmx_sendpipe; /* outbound delay-bandwidth product */ |
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u_long rmx_ssthresh; /* outbound gateway buffer limit */ |
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u_long rmx_rtt; /* estimated round trip time */ |
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u_long rmx_rttvar; /* estimated rtt variance */ |
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u_long rmx_pksent; /* packets sent using this route */ |
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u_long rmx_filler[4]; /* will be used for T/TCP later */ |
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}; |
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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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* RTTTOPRHZ(rtt) converts to a value suitable for use |
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* by a protocol slowtimo counter. |
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*/ |
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#define RTM_RTTUNIT 1000000 /* units for rtt, rttvar, as units per sec */ |
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#define RTTTOPRHZ(r) ((r) / (RTM_RTTUNIT / PR_SLOWHZ)) |
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|
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/* |
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* XXX kernel function pointer `rt_output' is visible to applications. |
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*/ |
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struct mbuf; |
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|
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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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#ifndef RNF_NORMAL |
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#include <stdapis/net/radix.h> |
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#endif |
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struct rtentry { |
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struct radix_node rt_nodes[2]; /* tree glue, and other values */ |
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/* |
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* XXX struct rtentry must begin with a struct radix_node (or two!) |
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* because the code does some casts of a 'struct radix_node *' |
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* to a 'struct rtentry *' |
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*/ |
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#define rt_key(r) (*((struct sockaddr **)(&(r)->rt_nodes->rn_key))) |
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#define rt_mask(r) (*((struct sockaddr **)(&(r)->rt_nodes->rn_mask))) |
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#ifndef __SYMBIAN32__ |
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struct sockaddr *rt_gateway; /* value */ |
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#endif //__SYMBIAN32__ |
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u_long rt_flags; /* up/down?, host/net */ |
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struct ifnet *rt_ifp; /* the answer: interface to use */ |
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struct ifaddr *rt_ifa; /* the answer: interface address to use */ |
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struct rt_metrics_lite rt_rmx; /* metrics used by rx'ing protocols */ |
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long rt_refcnt; /* # held references */ |
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#ifndef __SYMBIAN32__ |
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struct sockaddr *rt_genmask; /* for generation of cloned routes */ |
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#endif |
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caddr_t rt_llinfo; /* pointer to link level info cache */ |
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struct rtentry *rt_gwroute; /* implied entry for gatewayed routes */ |
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struct rtentry *rt_parent; /* cloning parent of this route */ |
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#ifdef _KERNEL |
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/* XXX ugly, user apps use this definition but don't have a mtx def */ |
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struct mtx rt_mtx; /* mutex for routing entry */ |
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#endif |
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130 |
|
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/*to be compatible with linux */ |
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#ifdef __SYMBIAN32__ |
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struct sockaddr rt_gateway; /* Gateway addr (RTF_GATEWAY). */ |
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char *rt_dev; /* Forcing the device at add. */ |
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struct sockaddr rt_genmask; /* Target network mask (IP). */ |
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short int rt_metric; /* +1 for binary compatibility! */ |
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struct sockaddr rt_dst; /* Target address. */ |
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#endif //__SYMBIAN32__ |
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}; |
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140 |
|
64
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#ifdef __SYMBIAN32__ |
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struct rtconf |
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{ |
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int rt_len; //size of the allocated buffer |
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union |
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{ |
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caddr_t rtcu_buf; |
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struct route_entry * rtcu_entry; |
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}rtc_rtcu; |
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#define rtc_buf rtc_rtcu.rtcu_buf /* buffer address */ |
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#define rtc_req rtc_rtcu.rtcu_entry /* array of structures returned */ |
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}; |
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153 |
|
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struct route_entry |
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{ |
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struct sockaddr ifaddr; //address of the interface |
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struct sockaddr dst_addr; //destination address |
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struct sockaddr gateway_addr; |
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struct sockaddr dst_netmask; |
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struct |
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161 |
{ |
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int state; |
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int type; |
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}rt_flags; |
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short int rt_metric; |
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char rt_dev[IFNAMSIZ]; //name of the interface |
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}; |
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#endif |
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169 |
|
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170 |
|
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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_DYNAMIC 0x10 /* created dynamically (by redirect) */ |
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#define RTF_STATIC 0x800 /* manually added */ |
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176 |
|
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#ifndef __SYMBIAN32__ |
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/* |
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* Following structure necessary for 4.3 compatibility; |
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* We should eventually move it to a compat file. |
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*/ |
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struct ortentry { |
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u_long rt_hash; /* to speed lookups */ |
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struct sockaddr rt_dst; /* key */ |
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struct sockaddr rt_gateway; /* value */ |
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short rt_flags; /* up/down?, host/net */ |
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short rt_refcnt; /* # held references */ |
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u_long rt_use; /* raw # packets forwarded */ |
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struct ifnet *rt_ifp; /* the answer: interface to use */ |
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}; |
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191 |
|
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#define rt_use rt_rmx.rmx_pksent |
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193 |
|
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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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/* 0x80 unused, was RTF_DELCLONE */ |
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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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|
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/* XXX: temporary to stay API/ABI compatible with userland */ |
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#ifndef _KERNEL |
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#define RTF_PRCLONING 0x10000 /* unused, for compatibility */ |
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#endif |
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|
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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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/* 0x1000000 and up unassigned */ |
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|
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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_long 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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|
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#define RTM_VERSION 5 /* Up the ante and ignore older versions */ |
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|
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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_IFANNOUNCE 0x11 /* iface arrival/departure */ |
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#define RTM_IEEE80211 0x12 /* IEEE80211 wireless event */ |
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|
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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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/* |
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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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/* |
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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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|
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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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int rti_flags; |
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struct ifaddr *rti_ifa; |
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struct ifnet *rti_ifp; |
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}; |
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|
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/* |
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* This macro returns the size of a struct sockaddr when passed |
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* through a routing socket. Basically we round up sa_len to |
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* a multiple of sizeof(long), with a minimum of sizeof(long). |
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* The check for a NULL pointer is just a convenience, probably never used. |
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* The case sa_len == 0 should only apply to empty structures. |
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*/ |
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#define SA_SIZE(sa) \ |
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( (!(sa) || ((struct sockaddr *)(sa))->sa_len == 0) ? \ |
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sizeof(long) : \ |
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1 + ( (((struct sockaddr *)(sa))->sa_len - 1) | (sizeof(long) - 1) ) ) |
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|
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#ifdef _KERNEL |
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|
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#define RT_LOCK_INIT(_rt) \ |
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mtx_init(&(_rt)->rt_mtx, "rtentry", NULL, MTX_DEF | MTX_DUPOK) |
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#define RT_LOCK(_rt) mtx_lock(&(_rt)->rt_mtx) |
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#define RT_UNLOCK(_rt) mtx_unlock(&(_rt)->rt_mtx) |
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#define RT_LOCK_DESTROY(_rt) mtx_destroy(&(_rt)->rt_mtx) |
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#define RT_LOCK_ASSERT(_rt) mtx_assert(&(_rt)->rt_mtx, MA_OWNED) |
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|
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#define RT_ADDREF(_rt) do { \ |
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RT_LOCK_ASSERT(_rt); \ |
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KASSERT((_rt)->rt_refcnt >= 0, \ |
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("negative refcnt %ld", (_rt)->rt_refcnt)); \ |
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(_rt)->rt_refcnt++; \ |
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} while (0); |
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#define RT_REMREF(_rt) do { \ |
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RT_LOCK_ASSERT(_rt); \ |
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KASSERT((_rt)->rt_refcnt > 0, \ |
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("bogus refcnt %ld", (_rt)->rt_refcnt)); \ |
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(_rt)->rt_refcnt--; \ |
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} while (0); |
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|
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#define RTFREE_LOCKED(_rt) do { \ |
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if ((_rt)->rt_refcnt <= 1) \ |
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rtfree(_rt); \ |
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else { \ |
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RT_REMREF(_rt); \ |
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RT_UNLOCK(_rt); \ |
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} \ |
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/* guard against invalid refs */ \ |
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_rt = 0; \ |
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} while (0) |
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#define RTFREE(_rt) do { \ |
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RT_LOCK(_rt); \ |
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RTFREE_LOCKED(_rt); \ |
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} while (0) |
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|
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extern struct radix_node_head *rt_tables[AF_MAX+1]; |
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|
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struct ifmultiaddr; |
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|
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#endif |
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#endif //__SYMBIAN32__ |
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#endif |