pipapo_step_after_end(9)

💅 pipapo_step_after_end — Kernel API Manual ✨

okay bestie, buckle up, because today we're reading pipapo_step_after_end(9) from the Kernel API Manual, and honestly? she's a little function with a big job 🎀

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🌸 NAME 🌸

pipapo_step_after_end — the vibe check that asks: does this mask overshoot the end of the range, given the step? 💖

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✨ SYNOPSIS ✨

bool pipapo_step_after_end (const u8 *base , const u8 *end , int step ,
int len );

like, that's the whole signature, no cap 🫶

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🦋 ARGUMENTS 🦋

• base — the mask we are expanding. she's the main character here 👑
• end — end of range. the boundary. the limit. the "you shall not pass" 🚧
• step — the step bit for the given expansion step, and it's the highest bit to be set, okay, that detail matters 🔥
• len — total length of mask space (set and unset bits), in bytes. yes, bytes, not bits, don't come for me 🙈

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💜 DESCRIPTION 💜

so basically she's a convenience function for mask expansion ✨ that's it, that's the description, she's short and iconic and she knows it 💅

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🌈 RETURN 🌈

• true — if the mask exceeds the range when you set the step bits 😭 (the overshoot happened, bestie)
• false — otherwise 💖 (we're fine, we're so fine)

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🎀 SEE ALSO 🎀

the whole friend group, fr fr — go read the kernel file ./net/netfilter/nft_set_pipapo.c Theory of Operation(9), plus: pipapo_refill(9), pipapo_get_slow(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_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 45 entries, I counted, you're welcome 💀

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and that's the page!! source lives in ./net/netfilter, dated October 2026 — mwah, slay, go touch some pipapo 🌸💅🦋