pipapo_get_slow(9)

💅 pipapo_get_slow(9)

okay so this is from the Kernel API Manual bestie, and it's the ~slow~ lookup girlie of the pipapo family. she's not in a hurry, she's just thorough 💖

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✨ NAME ✨

pipapo_get_slow — get the matching element reference when you hand her the key data 🎀

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🦋 SYNOPSIS 🦋

struct nft_pipapo_elem * pipapo_get_slow (const struct nft_pipapo_match
*m , const u8 *data , u8 genmask , u64 tstamp );

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🌸 ARGUMENTS 🌸

• m — the storage holding all the set elements. it's literally where everybody lives 💅
• data — the key data we're matching against the existing elements. this is the thing we're looking for, no cap 🔍
• genmask — if it's set, we check that the element is actually active in that given genmask. like a vibe check but for generations ✨
• tstamp — the timestamp we use to check for expired elements. grandma elements get caught here ⏰

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🧚 DESCRIPTION 🧚

For more details, see DOC: Theory of Operation. (iykyk 👀)

So this is the main lookup function, main character energy fr fr. She matches your key data against either the working match set or the uncommitted copy — it all depends on what the caller passed in to her. She's flexible like that 🫶

• nft_pipapo_get (that's the lookup from userspace/control plane) and nft_pipapo_lookup (the datapath lookup) — both of them pass the active copy ✨
• the insertion path is gonna pass the uncommitted working copy 🛠️

periodt. that's the whole vibe check.

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💀 RETURN 💀

A pointer to struct nft_pipapo_elem when there's a match, and NULL otherwise 😭

ngl, NULL is the "she's not here" of return values. don't panic, it's just not a match 💅

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🌈 SEE ALSO 🌈

Kernel file ./net/netfilter/nft_set_pipapo.c Theory of Operation(9), pipapo_refill(9), pipapo_get(9), nft_pipapo_lookup(9), nft_pipapo_get(9), pipapo_realloc_mt(9), lt_calculate_size(9), pipapo_resize(9), pipapo_bucket_set(9), pipapo_lt_4b_to_8b(9), pipapo_lt_8b_to_4b(9), pipapo_lt_bits_adjust(9), pipapo_insert(9), pipapo_step_diff(9), pipapo_step_after_end(9), pipapo_base_sum(9), pipapo_expand(9), pipapo_map(9), pipapo_free_scratch(9), pipapo_realloc_scratch(9), pipapo_maybe_clone(9), nft_pipapo_insert(9), pipapo_clone(9), pipapo_rules_same_key(9), pipapo_unmap(9), pipapo_drop(9), pipapo_gc_scan(9), pipapo_gc_queue(9), pipapo_free_fields(9), pipapo_reclaim_match(9), nft_pipapo_commit(9), nft_pipapo_activate(9), nft_pipapo_deactivate(9), nft_pipapo_flush(9), pipapo_get_boundaries(9), pipapo_match_field(9), nft_pipapo_remove(9), nft_pipapo_do_walk(9), nft_pipapo_walk(9), nft_pipapo_privsize(9), nft_pipapo_estimate(9), nft_pipapo_init(9), nft_set_pipapo_match_destroy(9), nft_pipapo_destroy(9), nft_pipapo_gc_init(9)

like, that's the whole group chat, everyone's invited 🎉

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mwah 💋 this page came from ./net/netfilter and it's dated October 2026 — screenshot it, bookmark it, tattoo it, idc, just remember the date bestie 🫶✨