STRUCT VLAN_ETHHDR(9)

✨ struct vlan_ethhdr(9) ✨

okay bestie, so we're in the Kernel API Manual today and the star of the show is struct vlan_ethhdr — literally the VLAN ethernet header, which is just an ethhdr + a vlan_hdr sharing one iconic little home together 💖

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🌸 NAME 🌸

struct vlan_ethhdr — the vlan ethernet header (ethhdr + vlan_hdr), no cap 🫶

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🎀 SYNOPSIS 🎀

struct vlan_ethhdr {
    struct {
      unsigned char   h_dest[ETH_ALEN];
      unsigned char   h_source[ETH_ALEN];
    };
    __be16 h_vlan_proto;
    __be16 h_vlan_TCI;
    __be16 h_vlan_encapsulated_proto;
 };

like… look at her. she's structured. she's nested. she's main character energy ✨

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🦋 Members 🦋

• {unnamed_struct} — anonymous 🙈 (yes that's the whole description, she's mysterious like that, iykyk)
• h_dest — destination ethernet address 🎯
• h_source — source ethernet address 💫
• h_vlan_proto — ethernet protocol 🔥
• h_vlan_TCI — priority and VLAN ID 👑
• h_vlan_encapsulated_proto — packet type ID or len 🍓

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💜 SEE ALSO 💜

Kernel file ./include/linux/if_vlan.h — and the whole squad, fr fr:

• 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_get_protocol(9)
• vlan_remove_tag(9)
• skb_vlan_tagged(9)
• skb_vlan_tagged_multi(9)
• vlan_features_check(9)
• compare_vlan_header(9)

like, that's a whole group chat of vlan functions and this struct is the one holding the aux cord 💅

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and that's the tea! ☕ this delight lives in ./include/linux, dated October 2026, and it's the struct vlan_ethhdr(9) page — go forth and tag some packets, bestie 🧚💖