remap_dfa_accept(9)

okay so bestie, welcome to the Kernel API Manual — section 9, specifically. This page is all about remap_dfa_accept, and it's lowkey a little compatibility gremlin in the best way 💅✨

✨ NAME ✨

remap_dfa_accept — remap old dfa accept table to be an index. That's the whole name, no cap. 🎀

🌸 SYNOPSIS 🌸

void remap_dfa_accept (struct aa_dfa *dfa , unsigned int factor );

🎀 ARGUMENTS 🎀

• dfa — the dfa you're doing the remapping on. Yes, that dfa. 🫶
• factor — the scaling factor for the index conversion. Math-ish era, honestly. ✨

🦋 DESCRIPTION 🦋

Okay so here's the vibe: this function is used in conjunction with compute_Xperms. Together they convert old style perms — the ones encoded in the dfa accept tables — into the new style. In the new style there's a permission table, and the accept table is an index into that permission table. It's giving "makeover montage, but for kernel data structures" 🔥💖

💜 SEE ALSO 💜

• Kernel file ./security/apparmor/policy_compat.c — go say hi to map_old_perms(9) and compute_fperms(9) too 🫶🌸

mwah 💋 this page lives under ./security/apparmor, it's dated October 2026, and it's forever remap_dfa_accept(9) — byeeee 🦋✨