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Kernel: Add a way to look up NetworkAdapters by IPv4 address.

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This commit is contained in:
Andreas Kling 2019-03-12 13:30:36 +01:00
parent c6a2012fe9
commit 8e667747f0
3 changed files with 36 additions and 13 deletions
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26
Kernel/NetworkAdapter.cpp
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@ -3,13 +3,39 @@
#include <Kernel/EthernetFrameHeader.h>
#include <Kernel/kmalloc.h>
#include <Kernel/EtherType.h>
#include <AK/HashTable.h>
#include <AK/Lock.h>
static Lockable<HashTable<NetworkAdapter*>>& all_adapters()
{
static Lockable<HashTable<NetworkAdapter*>>* table;
if (!table)
table = new Lockable<HashTable<NetworkAdapter*>>;
return *table;
}
NetworkAdapter* NetworkAdapter::from_ipv4_address(const IPv4Address& address)
{
LOCKER(all_adapters().lock());
for (auto* adapter : all_adapters().resource()) {
if (adapter->ipv4_address() == address)
return adapter;
}
return nullptr;
}
NetworkAdapter::NetworkAdapter()
{
// FIXME: I wanna lock :(
ASSERT_INTERRUPTS_DISABLED();
all_adapters().resource().set(this);
}
NetworkAdapter::~NetworkAdapter()
{
// FIXME: I wanna lock :(
ASSERT_INTERRUPTS_DISABLED();
all_adapters().resource().remove(this);
}
void NetworkAdapter::send(const MACAddress& destination, const ARPPacket& packet)