STRUCT FLOW_DISSECTOR_KEY_META(9)

💅 struct flow_dissector_key_meta 💅

okay so real talk, the page header up top literally reads struct flow_...tor_key_meta(9) — yes, the elision is baked in, that's just how this page shows up in the Kernel API Manual, section 9. we move.

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🌸 NAME 🌸

struct flow_dissector_key_meta —

and that's it bestie. no description, no little tagline. she said "my name is enough." main character energy fr.

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✨ SYNOPSIS ✨

okay here's the actual struct, copied exactly, do not touch:

struct flow_dissector_key_meta {
    int ingress_ifindex;
    u16 ingress_iftype;
    u8 l2_miss;
 };

three members. small struct. big vibes. 🎀

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🦋 Members 🦋

• ingress_ifindex — the ingress ifindex 💫 (that's it, that's the whole description, and honestly? she's self-explanatory)
• ingress_iftype — the ingress interface type 🫶
• l2_miss — meaning the packet did not match an L2 entry during forwarding. like it showed up to the L2 party and nobody had it on the list 😭💀

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👑 SEE ALSO 👑

bestie she has a whole friend group, and every single one of them is linked here, no cap. they all live in the kernel file ./include/net/flow_dissector.h:

• struct flow_dissector_key_control(9)
• struct flow_dissector_key_basic(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_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)

like, twenty-one structs in the group chat. the way she's connected to everyone 🌈✨

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🎀 and that's the whole page, no notes. she's short, she's sweet, she's from ./include/net, dated October 2026, and her full title is still struct flow_...tor_key_meta(9) because the manpage said "abbreviate her name, she's iconic enough." iykyk 💖🦋💅