STRUCT IPTFS_SKB_FRAG_WALK(9)

📦 version 7.3.1, in nixpkgs unstable

💖 struct iptfs_skb_frag_walk(9) — Kernel API Manual 💖

okay bestie, welcome to the Kernel API Manual page for struct iptfs_skb_frag_walk(9) ✨ this struct is literally your little itinerary when you're doing a walk through fragments, and we're gonna go through every single field together, no cap.

🌸 NAME 🌸

struct iptfs_skb_frag_walk — use to track a walk through fragments 🫶

🦋 SYNOPSIS 🦋

struct iptfs_skb_frag_walk {
    u32 fragi;
    u32 past;
    u32 total;
    u32 nr_frags;
    u32 initial_offset;
    skb_frag_t frags[MAX_SKB_FRAGS + 1];
    bool pp_recycle;
 };

🎀 Members 🎀

  • fragi — current fragment index, aka where you're at rn in the walk 💅
  • past — length of data in fragments before fragi, so you know how much came before this point ✨
  • total — length of data in all fragments, the whole vibe check of the data size 🌈
  • nr_frags — number of fragments present in array, literally how many are in there 🎀
  • initial_offset — the value passed in to skb_prepare_frag_walk, keeping that original offset safe and sound 🙈
  • frags — the page fragments inc. room for head page, bestie it's skb_frag_t frags[MAX_SKB_FRAGS + 1]; and yes that + 1 is doing its thing 💖
  • pp_recycle — copy of skb->pp_recycle, iconic little bool behavior 🦋

💜 SEE ALSO 💜

Kernel file ./net/xfrm/xfrm_iptfs.c, plus these linked besties — every single one, periodt:

mwah 💋 that's the whole page, bestie! Source/version: ./net/xfrm; date: October 2026; filed under struct iptfs_skb_frag_walk(9) 🫶

📦 where this page comes from