feat(socket): add TcpSaveSyn and TcpSavedSyn sockopts for Linux#2760
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feat(socket): add TcpSaveSyn and TcpSavedSyn sockopts for Linux#2760rupert648 wants to merge 1 commit intonix-rust:masterfrom
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Add typed setsockopt/getsockopt wrappers for TCP_SAVE_SYN (27) and TCP_SAVED_SYN (28), Linux-only socket options used for passive TCP fingerprinting (p0f). TcpSaveSyn is set on a listening socket to instruct the kernel to save a copy of each client SYN packet. TcpSavedSyn retrieves those raw IP + TCP header bytes from the accepted socket, enabling passive OS fingerprinting without active probing.
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Add typed setsockopt/getsockopt wrappers for TCP_SAVE_SYN (27) and TCP_SAVED_SYN (28), Linux-only socket options used for passive TCP fingerprinting (p0f).
TcpSaveSyn is set on a listening socket to instruct the kernel to save a copy of each client SYN packet. TcpSavedSyn retrieves those raw IP + TCP header bytes from the accepted socket, enabling passive OS fingerprinting without active probing.
What does this PR do
Checklist:
CONTRIBUTING.md