PROBE::TCP.DISCONN(3stap)

💫 NAME 💫

probe::tcp.disconnect — it's giving TCP socket disconnection, bestie 💔🦋

So this page lives in the Networking Tapset of the SystemTap Tapset Reference, and it's all about the moment a TCP socket says "ok bye" 👋

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✨ SYNOPSIS ✨

probe tcp.disconnect {}

That's it. That's the whole thing. No args, no flags, just vibes and a probe point. 🎀

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🌸 VALUES 🌸

Every one of these is available to you inside the probe handler. Collect them all like they're little Pokémon, except they're variables 🧚

• sport — the TCP source port. Where it came from, basically 💅
• daddr — a string representing the destination IP address 🗺️
• sock — the network socket itself. The main character, lowkey 👑
• family — the IP address family 🏠
• flags — the TCP flags (e.g. FIN, etc) 🚩 not me being obsessed with flag season
• name — the name of this probe. Yes, it knows its own name. Self-aware icon 💀
• dport — the TCP destination port 🎯
• saddr — a string representing the source IP address 🧭

Note the daddr and saddr ones? They're strings, not raw addresses. Important detail, no cap 🫶

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🦋 CONTEXT 🦋

The process which disconnects tcp 🌈

Like, whoever is doing the disconnecting — that's your context. That's whose energy you're picking up on 💜

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🫶 SEE ALSO 🫶

• tapset::tcp(3stap) — the whole tcp tapset, go read it, it's iconic ⭐

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okay bestie that's the whole page, you ate that 💅✨ this was the SystemTap Tapset Reference, and the version/date stamp on this one is September 2026 — periodt, go disconnect some sockets responsibly 🎀🦋💖