Symbol: vn_fullpath_jail
sys/security/mac_do/mac_do.c
2529
if (vn_fullpath_jail(curproc->p_textvp, &path, &to_free) != 0)
sys/sys/vnode.h
722
int vn_fullpath_jail(struct vnode *vp, char **retbuf, char **freebuf);