+static int may_context_mount_sb_relabel(u32 sid,
+ struct superblock_security_struct *sbsec,
+ struct task_security_struct *tsec)
+{
+ int rc;
+
+ rc = avc_has_perm(tsec->sid, sbsec->sid, SECCLASS_FILESYSTEM,
+ FILESYSTEM__RELABELFROM, NULL);
+ if (rc)
+ return rc;
+
+ rc = avc_has_perm(tsec->sid, sid, SECCLASS_FILESYSTEM,
+ FILESYSTEM__RELABELTO, NULL);
+ return rc;
+}
+
+static int may_context_mount_inode_relabel(u32 sid,
+ struct superblock_security_struct *sbsec,
+ struct task_security_struct *tsec)
+{
+ int rc;
+ rc = avc_has_perm(tsec->sid, sbsec->sid, SECCLASS_FILESYSTEM,
+ FILESYSTEM__RELABELFROM, NULL);
+ if (rc)
+ return rc;
+
+ rc = avc_has_perm(sid, sbsec->sid, SECCLASS_FILESYSTEM,
+ FILESYSTEM__ASSOCIATE, NULL);
+ return rc;
+}
+