iptfs_complete_inner_skb(9)

💖 NAME 💖

iptfs_complete_inner_skb — bestie, this one finishes prepping the inner packet so it can go off to gro recv ✨

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🌸 SYNOPSIS 🌸

void iptfs_complete_inner_skb (struct xfrm_state *x , struct sk_buff
*skb );

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🎀 ARGUMENTS 🎀

• x — the xfrm state, aka the vibe-context for this whole operation 💅
• skb — the inner packet itself, the main character of this function fr fr

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🦋 DESCRIPTION 🦋

Okay so here's the tea: this function finishes up the standard xfrm processing on the inner packet, right before it gets sent back through gro_cells_receive. That's the whole job. Clean, simple, iconic.

And why do we do it as a separate step, you ask? Because — and this is the part where we're being hopeful — we're building up a list of packets, lowkey manifesting that one day xfrm_input will just take a whole list from us. Not today, but like… someday. 🫶

So yeah, it's giving "preparation era" — the packet gets its finishing touches here, then it's off to the receive path. No cap. ✨

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💜 SEE ALSO 💜

Kernel file ./net/xfrm/xfrm_iptfs.c, plus the whole friend group:

• IPTFS_DEFAULT_DROP_TIME_USECS(9)
• IPTFS_DEFAULT_REORDER_WINDOW(9)
• IPTFS_DEFAULT_INIT_DELAY_USECS(9)
• IPTFS_DEFAULT_MAX_QUEUE_SIZE(9)
• struct xfrm_iptfs_config(9)
• struct xfrm_iptfs_data(9)
• iptfs_alloc_skb(9)
• iptfs_skb_head_to_frag(9)
• struct iptfs_skb_frag_walk(9)
• iptfs_skb_prepare_frag_walk(9)
• iptfs_skb_can_add_frags(9)
• iptfs_skb_add_frags(9)
• iptfs_pskb_add_frags(9)
• iptfs_pskb_extract_seq(9)
• iptfs_input_save_runt(9)
• __iptfs_iphlen(9)
• __iptfs_iplen(9)
• iptfs_reassem_abort(9)
• iptfs_reassem_done(9)
• iptfs_reassem_cont(9)
• iptfs_input_ordered(9)
• iptfs_drop_timer(9)
• iptfs_input(9)
• iptfs_enqueue(9)
• iptfs_copy_create_frag(9)
• iptfs_copy_create_frags(9)
• iptfs_first_skb(9)
• iptfs_encap_add_ipv4(9)
• iptfs_encap_add_ipv6(9)
• iptfs_prepare_output(9)
• __iptfs_get_inner_mtu(9)
• iptfs_get_inner_mtu(9)
• iptfs_user_init(9)

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💀 quick reminder that all of the above are (9) kernel API pages, so read responsibly ✨

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Okay that's the whole page, bestie, go forth and finish those inner packets 👑🌷 This one lives over in ./net/xfrm and it's dated October 2026 — slay 💖🎀🦋