STRUCT DCCP_HDR_ACK_BITS(9)

💖 struct dccp_hdr_ack_bits(9) — the kernel API manual page, but make it make sense 💖

okay so bestie, sit down, we're getting into struct dccp_hdr_ack_bits from the kernel API manual, and honestly? it's giving "small but important." ✨

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🌸 NAME 🌸

struct dccp_hdr_ack_bits — the acknowledgment bits that are common to most packets 🫶

like, most of them. not all. but most. iykyk.

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✨ SYNOPSIS ✨

here's the whole vibe, literally the entire struct, no cap:

struct dccp_hdr_ack_bits {
    __be16 dccph_reserved1;
    __be16 dccph_ack_nr_high;
    __be32 dccph_ack_nr_low;
 };

three fields. that's it. that's the whole girl. 🎀

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🦋 Members 🦋

so the page doesn't actually spell out the members one by one up here — it just drops "Members" and then rolls straight into the description, which is honestly such a mood. 🙈 the good stuff is down below:

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👑 Description 👑

• dccph_resp_ack_nr_high — the 48 bit ack number, high order bits, and it contains GSR 💅
• dccph_resp_ack_nr_low — the 48 bit ack number, low order bits, and also contains GSR 💜

👀 okay real talk: the names down here in the description are spelled dccph_resp_ack_nr_high and dccph_resp_ack_nr_low, while the struct up in the synopsis says dccph_ack_nr_high and dccph_ack_nr_low. that is literally what the page says, both ways, so i'm passing it to you exactly like that — i am simply the messenger, do with that what you will 🫡

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🌈 SEE ALSO 🌈

you will be looking at the neighbors, bestie, it's a whole friend group:

• Kernel file ./include/uapi/linux/dccp.h
• struct dccp_hdr(9)
• struct dccp_hdr_ext(9)
• struct dccp_hdr_request(9)
• struct dccp_hdr_response(9)
• struct dccp_hdr_reset(9)

like, go read them. they're iconic. 🔥

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and that's the page!! sign-off time: this little gem lives in ./include/uapi/linux, dated October 2026, and it answers to struct dccp_hdr_ack_bits(9) 💖 slay, go read your headers, mwah 🧚⭐