FUNCTION::LINUXMIB_F(3stap)

✨ FUNCTION::LINUXMIB_F(3stap) ✨

okay so bestie, we're in the SNMP Information Tapset section of the SystemTap Tapset Reference, and this little function is literally the default bouncer at the door of your linuxmib.* probes 💅

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🌸 NAME 🌸

function::linuxmib_filter_key — the default filter function for linuxmib.* probes 🎀

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🦋 SYNOPSIS 🦋

linuxmib_filter_key:long(sk:long,op:long)

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💖 ARGUMENTS 💖

• sk — a pointer to the struct sock. yes, that whole struct, she's pointing at it 🫶
• op — the value that gets counted if sk passes the filter. like, op is just sitting there waiting for permission, no cap 😭

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👑 DESCRIPTION 👑

okay so here's the tea, bestie ☕

This function is a default filter function. The way that works is — you, yes you, can replace this function with your own. Iconic behavior, honestly ✨

Your user-supplied filter function gets to return an index key based on the values in sk. That's the whole vibe: you look at sk, you decide what key it maps to, and you hand that key back.

⚠️ and listen, this part matters — if your function returns 0, that means this particular sk should not be counted. zero = you're not invited to the party, sorry not sorry 💀

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🌈 SEE ALSO 🌈

• tapset::linuxmib-filter-default(3stap)

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SystemTap Tapset Reference Ver 🌸 September 2026 🎀

k byeee, go count some sockets bestie, ily 🫶💖✨