Function mac_vnode_check_lookup_impl

freebsd/security/mac/mac_vfs.c:567–581

    "struct vnode *", "struct componentname *");

int
mac_vnode_check_lookup_impl(struct ucred *cred, struct vnode *dvp,
    struct componentname *cnp)
{
	int error;

	ASSERT_VOP_LOCKED(dvp, "mac_vnode_check_lookup");

	if ((cnp->cn_flags & NOMACCHECK) != 0)
		return (0);
	MAC_POLICY_CHECK(vnode_check_lookup, cred, dvp, dvp->v_label, cnp);
	MAC_CHECK_PROBE3(vnode_check_lookup, error, cred, dvp, cnp);

	return (error);
}

MAC_CHECK_PROBE_DEFINE4(vnode_check_mmap, "struct ucred *", "struct vnode *",
    "int", "int");