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7c1f645e27
There is a big mix of LockRefPtrs all over the Networking subsystem, as well as lots of room for improvements with our locking patterns, which this commit will not pursue, but will give a good start for such work. To deal with this situation, we change the following things: - Creating instances of NetworkAdapter should always yield a non-locking NonnullRefPtr. Acquiring an instance from the NetworkingManagement should give a simple RefPtr,as giving LockRefPtr does not really protect from concurrency problems in such case. - Since NetworkingManagement works with normal RefPtrs we should protect all instances of RefPtr<NetworkAdapter> with SpinlockProtected to ensure references are gone unexpectedly. - Protect the so_error class member with a proper spinlock. This happens to be important because the clear_so_error() method lacked any proper locking measures. It also helps preventing a possible TOCTOU when we might do a more fine-grained locking in the Socket code, so this could be definitely a start for this. - Change unnecessary LockRefPtr<PacketWithTimestamp> in the structure of OutgoingPacket to a simple RefPtr<PacketWithTimestamp> as the whole list should be MutexProtected. |
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| .. | ||
| Intel | ||
| Realtek | ||
| ARP.h | ||
| EthernetFrameHeader.h | ||
| EtherType.h | ||
| ICMP.h | ||
| IPv4.h | ||
| IPv4Socket.cpp | ||
| IPv4Socket.h | ||
| IPv4SocketTuple.h | ||
| LocalSocket.cpp | ||
| LocalSocket.h | ||
| LoopbackAdapter.cpp | ||
| LoopbackAdapter.h | ||
| NetworkAdapter.cpp | ||
| NetworkAdapter.h | ||
| NetworkingManagement.cpp | ||
| NetworkingManagement.h | ||
| NetworkTask.cpp | ||
| NetworkTask.h | ||
| Routing.cpp | ||
| Routing.h | ||
| Socket.cpp | ||
| Socket.h | ||
| TCP.h | ||
| TCPSocket.cpp | ||
| TCPSocket.h | ||
| UDP.h | ||
| UDPSocket.cpp | ||
| UDPSocket.h | ||