STRUCT FLOW_DISSECTOR_KEY_BASIC(9)

💖 struct flow_dissector_key_basic(9) 💖

okay so bestie, welcome to the Kernel API Manual — yes we're reading kernel docs together, this is our bonding era 🫶. This page is all about struct flow_dissector_key_basic, and ngl it's a short one, but it's lowkey iconic. Let's get into it.

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✨ NAME ✨

struct flow_dissector_key_basic — the little struct that holds the basics of a flow. No cap, that's literally the whole name section. She's mysterious, she's minimal, she ate. 💅

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🌸 SYNOPSIS 🌸

Here's the whole vibe, character for character:

struct flow_dissector_key_basic {
    __be16 n_proto;
    u8 ip_proto;
    u8 padding;
 };

Three little fields, one big job. So tidy. So demure. 🎀

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🦋 Members 🦋

• n_proto — the network header protocol, like IPv4 or IPv6. This is the outer-layer girlie, the one who shows up first. ✨
• ip_proto — the transport header protocol, like TCP or UDP. The inner-layer bestie that tells you what's actually riding along. 🚗
• padding — unused. That's it. That's her whole personality. She's just there to keep the struct aligned and we respect her for it 💀🙈

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👑 SEE ALSO 👑

okay this is the part where the manpage goes full group-chat-invite-list, and we are NOT leaving anyone out. Everyone gets an invite, periodt. 🎀

The kernel file ./include/net/flow_dissector.h struct, plus the entire flow_dissector_key cinematic universe:

• flow_dissector_key_control(9)
• struct flow_dissector_key_enc_opts(9)
• struct flow_dissector_key_ipv4_addrs(9)
• struct flow_dissector_key_ipv6_addrs(9)
• struct flow_dissector_key_tipc(9)
• struct flow_dissector_key_addrs(9)
• struct flow_dissector_key_arp(9)
• struct flow_dissector_key_ports(9)
• struct flow_dissector_key_ports_range(9)
• struct flow_dissector_key_icmp(9)
• struct flow_dissector_key_eth_addrs(9)
• struct flow_dissector_key_tcp(9)
• struct flow_dissector_key_ip(9)
• struct flow_dissector_key_meta(9)
• struct flow_dissector_key_ct(9)
• struct flow_dissector_key_hash(9)
• struct flow_dissector_key_num_of_vlans(9)
• struct flow_dissector_key_pppoe(9)
• struct flow_dissector_key_l2tpv3(9)
• struct flow_dissector_key_ipsec(9)
• struct flow_dissector_key_cfm(9)

bestie if you're reading this whole list out loud, hydrate first. it's giving marathon. 💧

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and that's the whole page!! short, sweet, structurally sound. study date at the kernel source tree, my treat 🌈

cute little sign-off: this one lives at the source path ./include/net, dated October 2026, and it's serving struct flow...or_key_basic(9) energy from the Kernel API Manual til the end. take care of her, she's doing her best 🧚💜