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Kernel: Add update option to remove an entry from the ARP table

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Allows for specifying whether to set/delete an entry from the table.
This commit is contained in:
brapru 2021-07-24 19:37:54 -04:00 • committed by Andreas Kling
parent 99b32073be
commit f8c104aaaf
Notes: sideshowbarker 2024-07-18 08:21:34 +09:00
3 changed files with 13 additions and 5 deletions
Kernel/Net
NetworkTask.cpp

4
Kernel/Net/NetworkTask.cpp
View file

@ -151,7 +151,7 @@ void handle_arp(const EthernetFrameHeader& eth, size_t frame_size)
// Someone has this IPv4 address. I guess we can try to remember that.
// FIXME: Protect against ARP spamming.
// FIXME: Support static ARP table entries.
update_arp_table(packet.sender_protocol_address(), packet.sender_hardware_address());
update_arp_table(packet.sender_protocol_address(), packet.sender_hardware_address(), UpdateArp::Set);
}
if (packet.operation() == ARPOperation::Request) {
@ -199,7 +199,7 @@ void handle_ipv4(const EthernetFrameHeader& eth, size_t frame_size, const Time&
auto my_net = adapter.ipv4_address().to_u32() & adapter.ipv4_netmask().to_u32();
auto their_net = packet.source().to_u32() & adapter.ipv4_netmask().to_u32();
if (my_net == their_net)
update_arp_table(packet.source(), eth.source());
update_arp_table(packet.source(), eth.source(), UpdateArp::Set);
}
});