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https://github.com/RGBCube/serenity
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bea1668159
If you specify gateway as 0.0.0.0, the SIOCDELRT ioctl will remove all route entries that match all the other arguments.
72 lines
2.1 KiB
C++
72 lines
2.1 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/IPv4Address.h>
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#include <AK/NonnullRefPtr.h>
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#include <Kernel/Locking/MutexProtected.h>
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#include <Kernel/Net/NetworkAdapter.h>
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#include <Kernel/Thread.h>
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namespace Kernel {
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struct Route : public RefCounted<Route> {
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Route(IPv4Address const& destination, IPv4Address const& gateway, IPv4Address const& netmask, u16 flags, NonnullRefPtr<NetworkAdapter> adapter)
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: destination(destination)
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, gateway(gateway)
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, netmask(netmask)
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, flags(flags)
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, adapter(adapter)
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{
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}
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bool operator==(Route const& other) const
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{
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return destination == other.destination && netmask == other.netmask && flags == other.flags && adapter.ptr() == other.adapter.ptr();
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}
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bool matches(Route const& other) const
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{
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return destination == other.destination && (gateway == other.gateway || other.gateway.is_zero()) && netmask == other.netmask && flags == other.flags && adapter.ptr() == other.adapter.ptr();
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}
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const IPv4Address destination;
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const IPv4Address gateway;
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const IPv4Address netmask;
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const u16 flags;
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NonnullRefPtr<NetworkAdapter> adapter;
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IntrusiveListNode<Route, RefPtr<Route>> route_list_node {};
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using RouteList = IntrusiveList<&Route::route_list_node>;
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};
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struct RoutingDecision {
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RefPtr<NetworkAdapter> adapter;
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MACAddress next_hop;
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bool is_zero() const;
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};
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enum class UpdateTable {
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Set,
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Delete,
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};
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void update_arp_table(IPv4Address const&, MACAddress const&, UpdateTable update);
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ErrorOr<void> update_routing_table(IPv4Address const& destination, IPv4Address const& gateway, IPv4Address const& netmask, u16 flags, RefPtr<NetworkAdapter> const adapter, UpdateTable update);
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enum class AllowUsingGateway {
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Yes,
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No,
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};
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RoutingDecision route_to(IPv4Address const& target, IPv4Address const& source, RefPtr<NetworkAdapter> const through = nullptr, AllowUsingGateway = AllowUsingGateway::Yes);
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SpinlockProtected<HashMap<IPv4Address, MACAddress>>& arp_table();
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SpinlockProtected<Route::RouteList>& routing_table();
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}
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