1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#pragma once
#include <AK/IPv4Address.h>
#include <Kernel/Library/NonnullLockRefPtr.h>
#include <Kernel/Locking/MutexProtected.h>
#include <Kernel/Net/NetworkAdapter.h>
#include <Kernel/Thread.h>
namespace Kernel {
struct Route final : public AtomicRefCounted<Route> {
Route(IPv4Address const& destination, IPv4Address const& gateway, IPv4Address const& netmask, u16 flags, NonnullLockRefPtr<NetworkAdapter> adapter)
: destination(destination)
, gateway(gateway)
, netmask(netmask)
, flags(flags)
, adapter(adapter)
{
}
bool operator==(Route const& other) const
{
return destination == other.destination && netmask == other.netmask && flags == other.flags && adapter.ptr() == other.adapter.ptr();
}
bool matches(Route const& other) const
{
return destination == other.destination && (gateway == other.gateway || other.gateway.is_zero()) && netmask == other.netmask && flags == other.flags && adapter.ptr() == other.adapter.ptr();
}
const IPv4Address destination;
const IPv4Address gateway;
const IPv4Address netmask;
const u16 flags;
NonnullLockRefPtr<NetworkAdapter> adapter;
IntrusiveListNode<Route, LockRefPtr<Route>> route_list_node {};
using RouteList = IntrusiveList<&Route::route_list_node>;
};
struct RoutingDecision {
LockRefPtr<NetworkAdapter> adapter;
MACAddress next_hop;
bool is_zero() const;
};
enum class UpdateTable {
Set,
Delete,
};
void update_arp_table(IPv4Address const&, MACAddress const&, UpdateTable update);
ErrorOr<void> update_routing_table(IPv4Address const& destination, IPv4Address const& gateway, IPv4Address const& netmask, u16 flags, LockRefPtr<NetworkAdapter> const adapter, UpdateTable update);
enum class AllowUsingGateway {
Yes,
No,
};
RoutingDecision route_to(IPv4Address const& target, IPv4Address const& source, LockRefPtr<NetworkAdapter> const through = nullptr, AllowUsingGateway = AllowUsingGateway::Yes);
SpinlockProtected<HashMap<IPv4Address, MACAddress>, LockRank::None>& arp_table();
SpinlockProtected<Route::RouteList, LockRank::None>& routing_table();
}
|
