skb_tunnel_rx(9)

💅 skb_tunnel_rx(9) — Kernel API Manual 💅

okay so bestie, this is the skb_tunnel_rx(9) page from the Kernel API Manual, and we are keeping every single detail, no cap ✨

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🎀 NAME 🎀

skb_tunnel_rx — prepare skb for rx reinsert. that's the whole vibe, periodt 💖

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✨ SYNOPSIS ✨

the signature, character for character:

void skb_tunnel_rx (struct sk_buff *skb , struct net_device *dev ,
struct net *net );

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🌸 ARGUMENTS 🌸

• skb — buffer. literally the buffer, bestie 🫶
• dev — tunnel device. the tunnel device in question 💅
• net — netns for packet i/o. yes, the netns for packet i/o 🌈

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🦋 DESCRIPTION 🦋

so after decapsulation, the packet is gonna re-enter our stack through netif_rx — that's the reinsert moment. so this function makes some cleanups and performs accounting. iconic cleanup-and-accounting behavior, ngl 🧚✨

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💀 NOTE 💀

🚨 bestie, important: this accounting is not SMP safe. like, do not treat it as SMP-safe, fr fr 😭

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👑 SEE ALSO 👑

go peek at the kernel file ./include/net/dst.h and these absolute icons: skb_dst_drop(9), dst_hold_safe(9), skb_dst_force(9), __skb_tunnel_rx(9). iykyk 💜🦋

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mwah 💋 — source/version: ./include/net, date: October 2026, that's the sign-off bestie 🫶