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Kernel: Don't go through ARP for IP broadcast messages

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AnotherTest 2021-02-15 21:20:15 +03:30 • committed by Andreas Kling
parent ce13b258ca
commit 4043e770e5
1 changed files with 6 additions and 0 deletions
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6
Kernel/Net/Routing.cpp
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@ -205,6 +205,12 @@ RoutingDecision route_to(const IPv4Address& target, const IPv4Address& source, c
return { nullptr, {} }; return { nullptr, {} };
} }
// If it's a broadcast, we already know everything we need to know.
// FIXME: We should also deal with the case where `target_addr` is
// a broadcast to a subnet rather than a full broadcast.
if (target_addr == 0xffffffff && matches(adapter))
return { adapter, { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff } };
{ {
LOCKER(arp_table().lock()); LOCKER(arp_table().lock());
auto addr = arp_table().resource().get(next_hop_ip); auto addr = arp_table().resource().get(next_hop_ip);