key_extract_l3l4(9)

💖 key_extract_l3l4(9) — Kernel API Manual 🎀

okay so bestie, this is the Kernel API Manual page for key_extract_l3l4(9), and it's literally here to extract L3/L4 header info. main character energy fr fr ✨

🌸 NAME 🌸

key_extract_l3l4 — extracts L3/L4 header information.

✨ SYNOPSIS ✨

int key_extract_l3l4 (struct sk_buff *skb , struct sw_flow_key *key );

🫶 ARGUMENTS 🫶

• skb — the sk_buff that contains the frame, with skb->data pointing to the L3 header.
• key — output flow key.

💅 RETURN 💅

0 if successful, otherwise a negative errno value. no cap 💀✨

🦋 SEE ALSO 🦋

• Kernel file ./net/openvswitch/flow.c
• get_ipv6_ext_hdrs(9)
• parse_vlan_tag(9)
• key_extract(9)

go give those a vibe check too, iykyk 🫶

mwah 💋 this page's source/version is ./net/openvswitch, dated October 2026, and it's the key_extract_l3l4(9) manual page. periodt 🌈👑