vlan_get_protocol(9)

okay bestie, welcome to vlan_get_protocol(9) from the Kernel API Manual — she’s tiny, she’s iconic, and she’s about to tell you which EtherType a packet is carrying 💅✨

🎀 NAME 🎀

vlan_get_protocol — get protocol EtherType. Like, that’s the whole assignment, and she ate. 💖

✨ SYNOPSIS ✨

__be16 vlan_get_protocol (const struct sk_buff *skb );

No cap, that’s the exact signature — keep it character-for-character, bestie. 🫶

🌸 ARGUMENTS 🌸

• skb — the skbuff to query 👀. That’s the packet-ish thing you’re asking, “bestie, what’s your protocol?”

🦋 RETURN 🦋

You get back the EtherType of the packet — regardless of whether it is vlan encapsulated (normal or hardware accelerated) or not. So yes, even with the vlan glow-up, she still tells you the real EtherType. 💅

🔥 SEE ALSO 🔥

Kernel file ./include/linux/if_vlan.h — and literally the whole vlan friend group, no skips:

• struct vlan_ethhdr(9)
• struct vlan_pcpu_stats(9)
• struct vlan_priority_tci_mapping(9)
• struct vlan_dev_priv(9)
• eth_type_vlan(9)
• __vlan_insert_inner_tag(9)
• __vlan_insert_tag(9)
• vlan_insert_inner_tag(9)
• vlan_insert_tag(9)
• vlan_insert_tag_set_proto(9)
• __vlan_hwaccel_clear_tag(9)
• __vlan_hwaccel_copy_tag(9)
• __vlan_hwaccel_put_tag(9)
• __vlan_get_tag(9)
• __vlan_hwaccel_get_tag(9)
• vlan_get_tag(9)
• vlan_get_protocol_offset_inline(9)
• vlan_remove_tag(9)
• skb_vlan_tagged(9)
• skb_vlan_tagged_multi(9)
• vlan_features_check(9)
• compare_vlan_header(9)

that’s the whole page, bestie 🌈 — source ./include/linux, dated October 2026, answering to vlan_get_protocol(9). mwah 💖🎀