STRUCT FLOW_DISSECTOR_KEY_ETH_ADDRS(9)

💖 struct flow_dissector_key_eth_addrs(9) 💖

okay so first things first, bestie — this is a page from the Kernel API Manual, and the struct in question is struct flow_dissector_key_eth_addrs. That's the whole NAME entry, fr fr. No cute little one-liner description, no nothing. Just the struct name and a dash. She said "my name is enough" and honestly? main character energy. 👑

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✨ SYNOPSIS ✨

here's the whole thing, and yes it is this small, don't come for her:

struct flow_dissector_key_eth_addrs {
    unsigned char dst[ETH_ALEN];
    unsigned char src[ETH_ALEN];
 };

look at that. two fields. two little unsigned char arrays, both sized ETH_ALEN, one for each direction of the conversation. she's compact, she's efficient, she's not doing too much. we love a low-effort icon. 💅

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🎀 Members 🎀

• dst — the destination Ethernet address. where the packet is headed, the whole point of the journey, the final boss of the Ethernet frame. 🎯
• src — the source Ethernet address. where it came from, the origin story, the "no bc this is literally me" of the frame. 🌸

that's it. that's the members section. two entries. short and sweet and I'm obsessed. 🫶

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🦋 SEE ALSO 🦋

okay so this is where things get a little unhinged (affectionate) because the see-also list is long and I need you to stay with me. the kernel file lives at ./include/net/flow_dissector.h — that's the struct's home base, her address, iykyk — and then she's linking arms with basically the entire flow dissector friend group:

• 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_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)

twenty-one friends and not one of them is a filler member of the group chat. that's called having taste. 🌈

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ngl bestie, if you're reading this page you probably don't need the lore — you just need to know that dst comes first and src comes second in the struct. do with that what you will. 💀

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and that's the whole page!! no more lore, no more flags, no exit statuses, nothing dramatic — just two MAC-sized arrays and a whole lot of link love. the source is ./include/net, dated October 2026, and the page itself is struct flow...ey_eth_addrs(9) (yes the title got cropped, she's mysterious like that 🙈). mwah, go read the flow dissector header, and remember: every Ethernet frame has a source and a destination, just like every group chat has a sender and a very confused recipient. 🍓✨🧚💜