lptr_t
lptr_t wk_u_ssnkey_buf; /* user-space ptr! */
lptr_t wk_u_auth_rbuf; /* recv auth tok buf */
lptr_t wk_u_auth_wbuf; /* send auth tok buf */
lptr_t _ioc_base;
lptr_t _ioc_tdata;
lptr_t _ioc_rdata;