__ppp_decompress_proto(9)

💅 __ppp_decompress_proto(9) 🫶

okay bestie, welcome to the Kernel API Manual page for __ppp_decompress_proto — it’s giving tiny-but-mighty helper energy ✨.

🌸 NAME 🌸

__ppp_decompress_proto — decompress protocol field, slim version 💖

✨ SYNOPSIS ✨

void __ppp_decompress_proto (struct sk_buff *skb );

🎀 ARGUMENTS 🎀

• skb — the socket buffer where the protocol field should be decompressed, bestie. It must have at least 1 byte of head room and 1 byte of linear data. The first byte of data must be a protocol field byte, no cap 💅.

🦋 DESCRIPTION 🦋

This function decompresses the protocol field in the PPP header if it’s compressed — like when Protocol-Field-Compression (PFC) was negotiated ✨.

🚨 lowkey important: no checks w.r.t. skb data length are done in this function. It is not doing a vibe check on your buffer length, so the length-checking situation is fully on you, fr fr 💀.

🌈 SEE ALSO 🌈

• Kernel file ./drivers/net/ppp/ppp_generic.c
• ppp_decompress_proto(9)

That’s the whole page, bestie 🫶. Signing off from ./drivers/net/ppp, October 2026, on page __ppp_decompress_proto(9) 💖✨.