ENUM P9_PERM_T(9)

✨ enum p9_perm_t ✨

okay bestie, so this one is enum p9_perm_t — it's literally the 9P permissions enum, straight out of the Kernel API Manual. yes, that manual. come on, let's go 💅

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🎀 NAME 🎀

enum p9_perm_t — the 9P permissions, fr fr

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💖 SYNOPSIS 💖

enum p9_perm_t {
    P9_DMDIR ,
    P9_DMAPPEND ,
    P9_DMEXCL ,
    P9_DMMOUNT ,
    P9_DMAUTH ,
    P9_DMTMP ,
    P9_DMSYMLINK ,
    P9_DMLINK ,
    P9_DMDEVICE ,
    P9_DMNAMEDPIPE ,
    P9_DMSOCKET ,
    P9_DMSETUID ,
    P9_DMSETGID ,
    P9_DMSETVTX

};

🌸 Constants 🌸

ok so here's the whole cast, main character by main character 👑

• P9_DMDIR — the mode bit for directories. the og folder energy 📁
• P9_DMAPPEND — the mode bit for is append-only. yes, append only, no takebacks 💀
• P9_DMEXCL — the mode bit for exclusive use (only one open handle allowed). one handle. that's it. that's the rule 🙈
• P9_DMMOUNT — the mode bit for mount points
• P9_DMAUTH — the mode bit for the authentication file
• P9_DMTMP — the mode bit for non-backed-up files
• P9_DMSYMLINK — the mode bit for symbolic links (9P2000.u)
• P9_DMLINK — the mode bit for hard-link (9P2000.u)
• P9_DMDEVICE — the mode bit for device files (9P2000.u)
• P9_DMNAMEDPIPE — the mode bit for named pipe (9P2000.u)
• P9_DMSOCKET — the mode bit for socket (9P2000.u)
• P9_DMSETUID — the mode bit for setuid (9P2000.u)
• P9_DMSETGID — the mode bit for setgid (9P2000.u)
• P9_DMSETVTX — the mode bit for sticky bit (9P2000.u)

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🦋 Description 🦋

so the vibe check here: 9P permissions differ slightly from Posix standard modes. that's the whole note. not a huge drama, just a lil difference bestie 🫶

See Also: http://plan9.bell-labs.com/magic/man2html/2/stat

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🌈 SEE ALSO 🌈

Kernel file ./include/net/9p/9p.h — and the whole squad lives there too: enum p9_debug_flags(9), enum p9_msg_t(9), enum p9_open_mode_t(9), enum p9_qid_t(9), struct p9_qid(9), struct p9_wstat(9), struct p9_iattr_dotl(9), struct p9_fcall(9) 💜

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and that's the page!! 🎉 from ./include/net/9p, dated October 2026 — mwah, slay, go read the source, ily bye 💖🎀✨