map_old_perms(9)

💖 NAME 💖

okay so bestie, welcome to the map_old_perms(9) page from the Kernel API Manual — this one maps the old file perms layout to the new layout. no cap, that’s literally its whole job. ✨

✨ SYNOPSIS ✨

u32 map_old_perms (u32 old );

🎀 ARGUMENTS 🎀

• old — permission set in old mapping. that’s the old-layout perms you’re handing over, bestie 💖

🦋 RETURN 🦋

new permission mapping. that’s what comes back out, periodt 💅

🌈 SEE ALSO 🌈

• Kernel file ./security/apparmor/policy_compat.c
• compute_fperms(9)
• remap_dfa_accept(9)

🫶 that’s the whole page, bestie — the source/version footer says ./security/apparmor, dated October 2026, and yeah, it’s the map_old_perms(9) era. 💖