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Kernel: Return the correct result for FIONREAD on datagram sockets

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Before this commit, we only checked the receive buffer on the socket,
which is unused on datagram streams. Now we return the actual size of
the datagram without the protocol headers, which required the protocol
to tell us what the size of the payload is.
This commit is contained in:
sin-ack 2021-09-11 19:38:05 +00:00 • committed by Ali Mohammad Pur
parent e4a1bc1542
commit 3da0c072f4
6 changed files with 26 additions and 1 deletions
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Kernel/Net/TCPSocket.h
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@ -174,6 +174,7 @@ private:
virtual ErrorOr<size_t> protocol_send(const UserOrKernelBuffer&, size_t) override;
virtual ErrorOr<void> protocol_connect(OpenFileDescription&, ShouldBlock) override;
virtual ErrorOr<u16> protocol_allocate_local_port() override;
virtual ErrorOr<size_t> protocol_size(ReadonlyBytes raw_ipv4_packet) override;
virtual bool protocol_is_disconnected() const override;
virtual ErrorOr<void> protocol_bind() override;
virtual ErrorOr<void> protocol_listen(bool did_allocate_port) override;