PROBE::TCPMIB.ACTI(3stap)

💖 PROBE::TCPMIB.ACTI 💖

okay bestie, welcome to the SNMP Information Tapset corner of the SystemTap Tapset Reference, page PROBE::TCPMIB.ACTI(3stap). this is the one that counts a socket going "hey, i'm opening!" — active opening energy only. main character probe fr fr 🫶

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✨ NAME ✨

probe::tcpmib.ActiveOpens — count an active opening of a socket. that's the whole vibe. it tallies. it keeps score. it's giving accountant but make it iconic 💅

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✨ SYNOPSIS ✨

probe tcpmib.ActiveOpens {}

literally just that. no args, no drama, just a probe hanging out waiting to be triggered 🦋

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✨ VALUES ✨

these are the lil goodies the probe hands you when it fires, bestie:

• op — value to be added to the counter. its default is 1. so like, it increments by one unless you say otherwise 🌸
• sk — pointer to the struct sock being acted on. that's the socket in question, the one having its big opening moment 👑

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✨ DESCRIPTION ✨

okay so here's the tea ☕ — the packet pointed to by skb gets filtered by the function tcpmib_filter_key. if the packet passes that filter, it gets counted in the global ActiveOpens, which is equivalent to SNMP's MIB TCP_MIB_ACTIVEOPENS. so basically the filter is the bouncer at the door and ActiveOpens is the guest list. no pass, no count. periodt 💅

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✨ SEE ALSO ✨

• tapset::tcpmib(3stap) — go read this one too, iykyk 📖

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and that's a wrap, bestie!! this page lives in the SystemTap Tapset Reference, and yeah it's the version from September 2026 — so fresh, so slay. go count some active opens, you got this 🎀🦋💖🔥👑🌈⭐💜