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Kernel: Outbound packets should use the source address from the socket

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Previously we'd use the adapter's address as the source address
when sending packets. Instead we should use the socket's bound local
address.
This commit is contained in:
Gunnar Beutner
2021-05-12 14:36:09 +02:00
committed by Andreas Kling
parent 532db9f768
commit 2b6aa571d1
6 changed files with 16 additions and 13 deletions
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3
Kernel/Net/NetworkTask.cpp
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@@ -256,7 +256,8 @@ void handle_icmp(const EthernetFrameHeader& eth, const IPv4Packet& ipv4_packet,
response.header.set_checksum(internet_checksum(&response, icmp_packet_size));
// FIXME: What is the right TTL value here? Is 64 ok? Should we use the same TTL as the echo request?
auto response_buffer = UserOrKernelBuffer::for_kernel_buffer((u8*)&response);
[[maybe_unused]] auto result = adapter->send_ipv4(eth.source(), ipv4_packet.source(), IPv4Protocol::ICMP, response_buffer, buffer.size(), 64);
[[maybe_unused]] auto result = adapter->send_ipv4(adapter->ipv4_address(), eth.source(),
ipv4_packet.source(), IPv4Protocol::ICMP, response_buffer, buffer.size(), 64);
}
}