security_genfs_sid(9)

✨ security_genfs_sid(9) ✨

okay so welcome to the Kernel API Manual corner of the group chat, bestie 💖 this little icon is literally about obtaining a SID for a file in a filesystem, and we're keeping every detail cute but intact. no cap.

🌸 NAME 🌸

security_genfs_sid — Obtain a SID for a file in a filesystem 🎀

✨ SYNOPSIS ✨

int security_genfs_sid (const char *fstype , const char *path , u16
orig_sclass , u32 *sid );

🎀 ARGUMENTS 🎀

• fstype — filesystem type, aka which filesystem bestie we're talking about 💅
• path — path from root of mount, bestie 🌸
• orig_sclass — file security class, the class vibe fr fr
• sid — SID for path, the actual SID we're pointing at ✨

💖 DESCRIPTION 💖

Here's the whole tea: acquire policy_rwlock before calling __security_genfs_sid, and release it afterward. That's it, that's the description, and the lock choreography is giving main character energy 🔥

🦋 SEE ALSO 🦋

The Kernel file ./security/selinux/ss/services.c is serving looks in this list, and these refs are all invited to the party:

• security_compute_av(9)
• security_sid_to_context(9)
• security_sid_to_context_inval(9)
• security_context_to_sid(9)
• security_context_to_sid_default(9)
• security_transition_sid(9)
• security_member_sid(9)
• security_change_sid(9)
• services_convert_context(9)
• security_load_policy(9)
• ocontext_to_sid(9)
• security_port_sid(9)
• security_ib_pkey_sid(9)
• security_ib_endport_sid(9)
• security_netif_sid(9)
• security_node_sid(9)
• __security_genfs_sid(9)
• security_fs_use(9)
• security_net_peersid_resolve(9)
• security_policycap_supported(9)
• security_netlbl_cache_add(9)
• security_netlbl_secattr_to_sid(9)
• security_netlbl_sid_to_secattr(9)
• __security_read_policy(9)
• security_read_policy(9)
• security_read_state_kernel(9)

mwah 💋 this page's source/version is ./security/selinux/ss, dated October 2026, for security_genfs_sid(9) — footer tea delivered, periodt 🫶