skb_store_bits(9)

💅 skb_store_bits(9) 💅

okay bestie, welcome to the Kernel API Manual — yes, the whole manual, and today's main character is skb_store_bits. this one's short but she works, so let's get into it ✨

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🌸 NAME 🌸

skb_store_bits — store bits from kernel buffer to skb 🫶

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⭐ SYNOPSIS ⭐

int skb_store_bits (struct sk_buff *skb , int offset , const void *from
, int len );

like, that's the whole signature. one function, four args, no drama 💅

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🎀 ARGUMENTS 🎀

• skb — the destination buffer, aka where the bytes are going 🎯
• offset — offset in destination, so where in that skb we're dropping the goods 📍
• from — source buffer, aka where the bytes are coming from 👀
• len — number of bytes to copy, like literally just count them 🍓

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🦋 DESCRIPTION 🦋

so the whole vibe is: copy the specified number of bytes from the source buffer to the destination skb. simple, iconic, no notes 💖

and then — highkey the best part — this function handles all the messy bits of traversing fragment lists and such. like, that's the whole reason she exists. all the gross fragment-list traversal? handled. you don't have to think about it. she ate and left no crumbs 👑✨

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🌈 SEE ALSO 🌈

Kernel file ./net/core/skbuff.c — plus a whole friend group of related functions, fr fr:

drop_reasons_register_subsys(9), drop_reasons_unregister_subsys(9), skb_panic(9), napi_skb_cache_get_bulk(9), __build_skb(9), build_skb_around(9), __napi_build_skb(9), napi_build_skb(9), __alloc_skb(9), __netdev_alloc_skb(9), napi_alloc_skb(9), skb_pp_cow_data(9), skb_pp_frag_ref(9), __kfree_skb(9), sk_skb_reason_drop(9), skb_tx_error(9), consume_skb(9), __consume_stateless_skb(9), napi_consume_skb(9), alloc_skb_for_msg(9), skb_morph(9), skb_copy_ubufs(9), skb_clone(9), skb_copy(9), __pskb_copy_fclone(9), pskb_expand_head(9), skb_expand_head(9), skb_copy_expand(9), __skb_pad(9), pskb_put(9), skb_put(9), skb_push(9), skb_pull(9), skb_pull_data(9), skb_trim(9), __pskb_pull_tail(9), skb_copy_bits(9), skb_zerocopy(9), skb_dequeue(9), skb_dequeue_tail(9), skb_queue_purge_reason(9), skb_rbtree_purge(9), skb_queue_head(9), skb_queue_tail(9), skb_unlink(9), skb_append(9), skb_split(9), skb_shift(9), skb_prepare_seq_read(9), skb_seq_read(9), skb_abort_seq_read(9), skb_copy_seq_read(9), skb_find_text(9), skb_pull_rcsum(9), skb_segment(9), skb_to_sgvec(9), skb_cow_data(9), skb_clone_sk(9), skb_partial_csum_set(9), skb_checksum_setup(9), skb_checksum_maybe_trim(9), skb_checksum_trimmed(9), skb_try_coalesce(9), skb_scrub_packet(9), skb_eth_pop(9), skb_eth_push(9), skb_mpls_push(9), skb_mpls_pop(9), skb_mpls_update_lse(9), skb_mpls_dec_ttl(9), alloc_skb_with_frags(9), skb_condense(9), __skb_ext_alloc(9), __skb_ext_set(9), skb_ext_add(9), skb_attempt_defer_free(9), skb_splice_from_iter(9)

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ngl bestie, this one's a short read — but that fragment-list handling? that's the whole plot. iykyk 💀💜

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and that's the page!! from the ./net/core girlies, October 2026 edition — mwah, go touch some sk_buffs, ily 🧚‍♀️💖🎀