STRUCT FLOW_DISSECTOR_KEY_PPPOE(9)

🌸 struct flow_dissector_key_pppoe(9) 🌸

okay bestie, welcome to the Kernel API Manual — yes, we're literally reading a kernel API manual together, this is our bonding time 💖. Today's main character is a struct from ./include/net/flow_dissector.h, and ngl it's a little cutie with only three fields. Short and iconic. Periodt.

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✨ NAME ✨

struct flow_dissector_key_pppoe — bestie... the original page gives us literally no description after the dash. That's it. That's the name. Empty. A mystery. A vibe. 🫶 (No cap, there's nothing else there, so we're not gonna invent one.)

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🦋 SYNOPSIS 🦋

struct flow_dissector_key_pppoe {
    __be16 session_id;
    __be16 ppp_proto;
    __be16 type;
};

Three __be16 fields, that's the whole thing, and honestly? Slay. Clean. Minimal. It's giving "I know exactly what I am" energy 👑.

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🎀 Members 🎀

• session_id — the pppoe session id. That's the entire description, bestie, the manpage keeps it short and sweet 🙈.
• ppp_proto — the ppp protocol. Again — short. Iconic. No notes. ✨
• type — the pppoe eth type. Three words and she's done 💅.

fr fr, that's all the documentation gives us for each member, so I'm not about to start guessing at behaviour. We respect the source 🙏.

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🌈 SEE ALSO 🌈

The original points you at the kernel file ./include/net/flow_dissector.h and this whole ✨squad✨ of sibling structs — go read them, they're all doing their own thing and lowkey killing it:

• 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_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_l2tpv3(9)
• struct flow_dissector_key_ipsec(9)
• struct flow_dissector_key_cfm(9)

Like, look at that list — every single one accounted for, nobody left behind, we love a complete roster 🧚💜.

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aaaand that's the page, bestie!! 🍓 This lil' struct lives over in ./include/net, and this edition of the manpage is dated October 2026 — so like, future vibes. Anyway, go forth and dissect those flows, you absolute icon 🔥⭐ bye bestie!! 💕