PROBE::TCPMIB.INSE(3stap)

💖 NAME 💖

probe::tcpmib.InSegs — bestie, this is the probe that counts an incoming tcp segment ✨ it's giving tally counter energy and honestly? obsessed.

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🌸 SYNOPSIS 🌸

probe tcpmib.InSegs {}

that's it. that's the whole vibe. no args, no drama 🎀

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🦋 VALUES 🦋

• sk — a pointer to the struct sock that's being acted on 💅 like, the socket in question, the main character of this packet's storyline.
• op — the value that gets added to the counter (default is 1, bc ofc it is, we're counting one seg at a time here 🫶)

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✨ DESCRIPTION ✨

okay so here's the tea, bestie ☕ the packet that sk points to is... wait no, the packet pointed to by skb gets filtered by the function tcpmib_filter_key (or ipmib_filter_key if we're talking tcp v4, iykyk) 🔥

and IF the packet passes that filter? it gets counted in the global InSegs 🎉 which is equivalent to SNMP's MIB TCP_MIB_INSEGS. no cap. that's literally the whole job. it counts. it slays. periodt 💜

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💜 SEE ALSO 💜

• tapset::tcpmib(3stap)

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fr fr go read the tapset page too, it's the whole friend group not just this one probe 🌈

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k bye bestie, go count some segments 💖✨

SystemTap Tapset Reference, Version 3stap — September 2026 🎀 she's dated but she's iconic, mwah 💋