Fix filtered ports detection in SYN scanner#7 #30
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- Add proper tracking of responded vs non-responded ports in SYN scanner - Mark ports that don't respond after timeout as filtered (not ignored) - Add buffered channels to prevent blocking during port classification - Improve connect scanner error classification for filtered ports: - Timeouts -> PortFiltered (firewall dropping packets) - Connection refused/reset -> PortClosed (host up, port closed) - Network unreachable -> PortFiltered (routing/firewall issues) - Add comprehensive tests for port state classification - Add mutex protection for concurrent port tracking - Update README with detailed port state documentation This ensures all scanned ports are properly classified as open, closed, or filtered, matching nmap's behavior. Previously, non-responding ports in SYN scans were simply ignored instead of being marked as filtered. Fixes liamg#7
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This ensures all scanned ports are properly classified as open, closed, or filtered, matching nmap's behavior. Previously, non-responding ports in SYN scans were simply ignored instead of being marked as filtered.
Fixes #7