55 #define	MI_IS_TRANSPARENT(mp)	(mp->b_cont && \  argument
56 	(mp->b_cont->b_rptr != mp->b_cont->b_wptr))
203 mi_copyin(queue_t *q, MBLKP mp, char *uaddr, size_t len)  in mi_copyin()  argument
205 	struct	iocblk *iocp = (struct iocblk *)mp->b_rptr;  in mi_copyin()
206 	struct	copyreq *cq = (struct copyreq *)mp->b_rptr;  in mi_copyin()
207 	struct	copyresp *cp = (struct copyresp *)mp->b_rptr;  in mi_copyin()
211 	ASSERT(mp->b_datap->db_type == M_IOCTL && !uaddr);  in mi_copyin()
215 		MI_COPY_COUNT(mp) = 1;  in mi_copyin()
216 		MI_COPY_DIRECTION(mp) = MI_COPY_IN;  in mi_copyin()
217 		cq->cq_private = mp->b_cont;  in mi_copyin()
220 		bcopy(mp->b_cont->b_rptr, &cq->cq_addr, sizeof (cq->cq_addr));  in mi_copyin()
221 		mp->b_cont = NULL;  in mi_copyin()
222 		mp->b_datap->db_type = M_COPYIN;  in mi_copyin()
223 		qreply(q, mp);  in mi_copyin()
236 	err = miocpullup(mp, len);  in mi_copyin()
250 	mp1->b_cont = mp->b_cont;  in mi_copyin()
251 	mp->b_cont = mp1;  in mi_copyin()
252 	MI_COPY_COUNT(mp) = 1;  in mi_copyin()
253 	MI_COPY_DIRECTION(mp) = MI_COPY_IN;  in mi_copyin()
254 	mp->b_cont = mp1->b_cont;  in mi_copyin()
261 	mp->b_datap->db_type = M_IOCDATA;  in mi_copyin()
264 	put(q, mp);  in mi_copyin()
270 	if (mp->b_cont) {  in mi_copyin()
271 		freemsg(mp->b_cont);  in mi_copyin()
272 		mp->b_cont = NULL;  in mi_copyin()
274 	mp->b_datap->db_type = M_IOCACK;  in mi_copyin()
275 	qreply(q, mp);  in mi_copyin()
294 mi_copyin_n(queue_t *q, MBLKP mp, size_t offset, size_t len)  in mi_copyin_n()  argument
296 	struct	copyreq *cq = (struct copyreq *)mp->b_rptr;  in mi_copyin_n()
298 	ASSERT(mp->b_datap->db_type == M_IOCDATA);  in mi_copyin_n()
300 	MI_COPY_COUNT(mp)++;  in mi_copyin_n()
301 	MI_COPY_DIRECTION(mp) = MI_COPY_IN;  in mi_copyin_n()
302 	cq->cq_private = mp->b_cont;  in mi_copyin_n()
305 	bcopy(mp->b_cont->b_rptr, &cq->cq_addr, sizeof (cq->cq_addr));  in mi_copyin_n()
307 	mp->b_cont = NULL;  in mi_copyin_n()
308 	mp->b_datap->db_type = M_COPYIN;  in mi_copyin_n()
309 	qreply(q, mp);  in mi_copyin_n()
313 mi_copyout(queue_t *q, MBLKP mp)  in mi_copyout()  argument
315 	struct iocblk *iocp = (struct iocblk *)mp->b_rptr;  in mi_copyout()
321 	if (mp->b_datap->db_type != M_IOCDATA || !mp->b_cont) {  in mi_copyout()
322 		mi_copy_done(q, mp, EPROTO);  in mi_copyout()
326 	mp1 = mp->b_cont;  in mi_copyout()
328 		mi_copy_done(q, mp, (int)(uintptr_t)cp->cp_rval);  in mi_copyout()
331 	if (!mp1->b_cont->b_cont && !MI_IS_TRANSPARENT(mp)) {  in mi_copyout()
334 		mp->b_cont = mp1->b_cont;  in mi_copyout()
336 		mp1 = mp->b_cont;  in mi_copyout()
341 		mp->b_datap->db_type = M_IOCACK;  in mi_copyout()
342 		qreply(q, mp);  in mi_copyout()
345 	if (MI_COPY_DIRECTION(mp) == MI_COPY_IN) {  in mi_copyout()
347 		MI_COPY_DIRECTION(mp) = MI_COPY_OUT;  in mi_copyout()
348 		MI_COPY_COUNT(mp) = 1;  in mi_copyout()
350 		++MI_COPY_COUNT(mp);  in mi_copyout()
362 	mp->b_datap->db_type = M_COPYOUT;  in mi_copyout()
363 	mp->b_cont = mp1;  in mi_copyout()
368 	qreply(q, mp);  in mi_copyout()
372 mi_copyout_alloc(queue_t *q, MBLKP mp, char *uaddr, size_t len,  in mi_copyout_alloc()  argument
375 	struct iocblk *iocp = (struct iocblk *)mp->b_rptr;  in mi_copyout_alloc()
378 	if (mp->b_datap->db_type == M_IOCTL) {  in mi_copyout_alloc()
385 					freemsg(mp->b_cont);  in mi_copyout_alloc()
386 					mp->b_cont = NULL;  in mi_copyout_alloc()
387 					mp->b_datap->db_type = M_IOCACK;  in mi_copyout_alloc()
388 					qreply(q, mp);  in mi_copyout_alloc()
392 			mp1->b_cont = mp->b_cont;  in mi_copyout_alloc()
393 			mp->b_cont = mp1;  in mi_copyout_alloc()
395 		MI_COPY_COUNT(mp) = 0;  in mi_copyout_alloc()
396 		MI_COPY_DIRECTION(mp) = MI_COPY_OUT;  in mi_copyout_alloc()
398 		mp->b_datap->db_type = M_IOCDATA;  in mi_copyout_alloc()
404 			mi_copy_done(q, mp, ENOMEM);  in mi_copyout_alloc()
407 	linkb(mp, mp1);  in mi_copyout_alloc()
413 mi_copy_done(queue_t *q, MBLKP mp, int err)  in mi_copy_done()  argument
418 	if (!mp)  in mi_copy_done()
420 	if (!q || (mp->b_wptr - mp->b_rptr) < sizeof (struct iocblk)) {  in mi_copy_done()
421 		freemsg(mp);  in mi_copy_done()
424 	iocp = (struct iocblk *)mp->b_rptr;  in mi_copy_done()
425 	mp->b_datap->db_type = M_IOCACK;  in mi_copy_done()
429 	if ((mp1 = mp->b_cont) != NULL) {  in mi_copy_done()
434 		freemsg(mp->b_cont);  in mi_copy_done()
435 		mp->b_cont = NULL;  in mi_copy_done()
437 	qreply(q, mp);  in mi_copy_done()
441 mi_copy_state(queue_t *q, MBLKP mp, MBLKP *mpp)  in mi_copy_state()  argument
443 	struct iocblk *iocp = (struct iocblk *)mp->b_rptr;  in mi_copy_state()
447 	mp1 = mp->b_cont;  in mi_copy_state()
448 	mp->b_cont = cp->cp_private;  in mi_copy_state()
451 			mi_copy_done(q, mp, ENOMEM);  in mi_copy_state()
454 		linkb(mp->b_cont, mp1);  in mi_copy_state()
457 		mi_copy_done(q, mp, (int)(uintptr_t)cp->cp_rval);  in mi_copy_state()
460 	if (mpp && MI_COPY_DIRECTION(mp) == MI_COPY_IN)  in mi_copy_state()
462 	return (MI_COPY_STATE(mp));  in mi_copy_state()
634 mi_mpprintf(MBLKP mp, char *fmt, ...)  in mi_mpprintf()  argument
640 	if (mp) {  in mi_mpprintf()
642 		    (char *)mp);  in mi_mpprintf()
644 			(void) mi_mpprintf_putc((char *)mp, '\0');  in mi_mpprintf()
652 mi_mpprintf_nr(MBLKP mp, char *fmt, ...)  in mi_mpprintf_nr()  argument
658 	if (mp) {  in mi_mpprintf_nr()
659 		(void) adjmsg(mp, -1);  in mi_mpprintf_nr()
661 		    (char *)mp);  in mi_mpprintf_nr()
663 			(void) mi_mpprintf_putc((char *)mp, '\0');  in mi_mpprintf_nr()
672 	MBLKP	mp = (MBLKP)cookie;  in mi_mpprintf_putc()  local
674 	while (mp->b_cont)  in mi_mpprintf_putc()
675 		mp = mp->b_cont;  in mi_mpprintf_putc()
676 	if (mp->b_wptr >= mp->b_datap->db_lim) {  in mi_mpprintf_putc()
677 		mp->b_cont = allocb(1024, BPRI_HI);  in mi_mpprintf_putc()
678 		mp = mp->b_cont;  in mi_mpprintf_putc()
679 		if (!mp)  in mi_mpprintf_putc()
682 	*mp->b_wptr++ = (unsigned char)ch;  in mi_mpprintf_putc()
876 mi_offset_param(mblk_t *mp, size_t offset, size_t len)  in mi_offset_param()  argument
880 	if (!mp)  in mi_offset_param()
882 	msg_len = mp->b_wptr - mp->b_rptr;  in mi_offset_param()
886 	return (&mp->b_rptr[offset]);  in mi_offset_param()
890 mi_offset_paramc(mblk_t *mp, size_t offset, size_t len)  in mi_offset_paramc()  argument
894 	for (; mp; mp = mp->b_cont) {  in mi_offset_paramc()
895 		int type = mp->b_datap->db_type;  in mi_offset_paramc()
897 			if (param = mi_offset_param(mp, offset, len))  in mi_offset_paramc()
899 			if (offset < mp->b_wptr - mp->b_rptr)  in mi_offset_paramc()
901 			offset -= mp->b_wptr - mp->b_rptr;  in mi_offset_paramc()
1084 mi_timer(queue_t *q, MBLKP mp, clock_t tim)  in mi_timer()  argument
1090 	if (!q || !mp || (mp->b_rptr - mp->b_datap->db_base) != sizeof (MTB))  in mi_timer()
1092 	mtb = (MTBP)mp->b_datap->db_base;  in mi_timer()
1093 	ASSERT(mp->b_datap->db_type == M_PCSIG);  in mi_timer()
1101 				ASSERT(mtb->mtb_q->q_first == mp ||  in mi_timer()
1102 				    mp->b_prev || mp->b_next);  in mi_timer()
1111 				ASSERT(mtb->mtb_q->q_first == mp ||  in mi_timer()
1112 				    mp->b_prev || mp->b_next);  in mi_timer()
1119 				ASSERT(mtb->mtb_q->q_first == mp ||  in mi_timer()
1120 				    mp->b_prev || mp->b_next);  in mi_timer()
1132 		mi_timer_stop(mp);  in mi_timer()
1135 		mi_timer_move(q, mp);  in mi_timer()
1152 	MBLKP	mp;  in mi_timer_alloc()  local
1155 	if ((mp = allocb(size + sizeof (MTB), BPRI_HI)) != NULL) {  in mi_timer_alloc()
1156 		mp->b_datap->db_type = M_PCSIG;  in mi_timer_alloc()
1157 		mtb = (MTBP)mp->b_datap->db_base;  in mi_timer_alloc()
1158 		mp->b_rptr = (uchar_t *)&mtb[1];  in mi_timer_alloc()
1159 		mp->b_wptr = mp->b_rptr + size;  in mi_timer_alloc()
1161 		mtb->mtb_mp = mp;  in mi_timer_alloc()
1163 		return (mp);  in mi_timer_alloc()
1192 mi_timer_free(MBLKP mp)  in mi_timer_free()  argument
1197 	if (!mp	|| (mp->b_rptr - mp->b_datap->db_base) != sizeof (MTB))  in mi_timer_free()
1199 	mtb = (MTBP)mp->b_datap->db_base;  in mi_timer_free()
1204 			ASSERT(mtb->mtb_q->q_first == mp ||  in mi_timer_free()
1205 			    mp->b_prev || mp->b_next);  in mi_timer_free()
1212 		ASSERT(mtb->mtb_q->q_first == mp ||  in mi_timer_free()
1213 		    mp->b_prev || mp->b_next);  in mi_timer_free()
1219 	ASSERT(mtb->mtb_q ==  NULL || mtb->mtb_q->q_first != mp);  in mi_timer_free()
1220 	freemsg(mp);  in mi_timer_free()
1227 mi_timer_move(queue_t *q, MBLKP mp)  in mi_timer_move()  argument
1232 	if (!q || !mp || (mp->b_rptr - mp->b_datap->db_base) != sizeof (MTB))  in mi_timer_move()
1235 	mtb = (MTBP)mp->b_datap->db_base;  in mi_timer_move()
1247 			ASSERT(mtb->mtb_q->q_first == mp ||  in mi_timer_move()
1248 			    mp->b_prev || mp->b_next);  in mi_timer_move()
1249 			rmvq(mtb->mtb_q, mp);  in mi_timer_move()
1250 			ASSERT(mtb->mtb_q->q_first != mp &&  in mi_timer_move()
1251 			    mp->b_prev == NULL && mp->b_next == NULL);  in mi_timer_move()
1253 			(void) putq(mtb->mtb_q, mp);  in mi_timer_move()
1264 		ASSERT(mtb->mtb_q->q_first == mp ||  in mi_timer_move()
1265 		    mp->b_prev || mp->b_next);  in mi_timer_move()
1266 		rmvq(mtb->mtb_q, mp);  in mi_timer_move()
1267 		ASSERT(mtb->mtb_q->q_first != mp &&  in mi_timer_move()
1268 		    mp->b_prev == NULL && mp->b_next == NULL);  in mi_timer_move()
1270 		(void) putq(mtb->mtb_q, mp);  in mi_timer_move()
1279 mi_timer_stop(MBLKP mp)  in mi_timer_stop()  argument
1284 	if (!mp || (mp->b_rptr - mp->b_datap->db_base) != sizeof (MTB))  in mi_timer_stop()
1287 	mtb = (MTBP)mp->b_datap->db_base;  in mi_timer_stop()
1292 			ASSERT(mtb->mtb_q->q_first == mp ||  in mi_timer_stop()
1293 			    mp->b_prev || mp->b_next);  in mi_timer_stop()
1299 		ASSERT(mtb->mtb_q->q_first == mp ||  in mi_timer_stop()
1300 		    mp->b_prev || mp->b_next);  in mi_timer_stop()
1312 mi_timer_valid(MBLKP mp)  in mi_timer_valid()  argument
1317 	if (!mp	|| (mp->b_rptr - mp->b_datap->db_base) != sizeof (MTB) ||  in mi_timer_valid()
1318 	    mp->b_datap->db_type != M_PCSIG)  in mi_timer_valid()
1320 	mtb = (MTBP)mp->b_datap->db_base;  in mi_timer_valid()
1329 			freemsg(mp);  in mi_timer_valid()
1355 mi_tpi_addr_and_opt(MBLKP mp, char *addr, t_scalar_t addr_length,  in mi_tpi_addr_and_opt()  argument
1369 	tudi = (struct T_unitdata_ind *)mp->b_rptr;  in mi_tpi_addr_and_opt()
1370 	tudi->SRC_offset = (t_scalar_t)(mp->b_wptr - mp->b_rptr);  in mi_tpi_addr_and_opt()
1373 		bcopy(addr, (char *)mp->b_wptr, addr_length);  in mi_tpi_addr_and_opt()
1374 		mp->b_wptr += addr_length;  in mi_tpi_addr_and_opt()
1376 	tudi->OPT_offset = (t_scalar_t)(mp->b_wptr - mp->b_rptr);  in mi_tpi_addr_and_opt()
1379 		bcopy(opt, (char *)mp->b_wptr, opt_length);  in mi_tpi_addr_and_opt()
1380 		mp->b_wptr += opt_length;  in mi_tpi_addr_and_opt()
1389 	MBLKP	mp;  in mi_tpi_conn_con()  local
1392 	if ((mp = mi_tpi_trailer_alloc(trailer_mp, len, T_CONN_CON)) != NULL) {  in mi_tpi_conn_con()
1393 		mp->b_wptr = &mp->b_rptr[sizeof (struct T_conn_con)];  in mi_tpi_conn_con()
1394 		mi_tpi_addr_and_opt(mp, src, src_length, opt, opt_length);  in mi_tpi_conn_con()
1396 	return (mp);  in mi_tpi_conn_con()
1404 	MBLKP	mp;  in mi_tpi_conn_ind()  local
1407 	if ((mp = mi_tpi_trailer_alloc(trailer_mp, len, T_CONN_IND)) != NULL) {  in mi_tpi_conn_ind()
1408 		mp->b_wptr = &mp->b_rptr[sizeof (struct T_conn_ind)];  in mi_tpi_conn_ind()
1409 		mi_tpi_addr_and_opt(mp, src, src_length, opt, opt_length);  in mi_tpi_conn_ind()
1410 		((struct T_conn_ind *)mp->b_rptr)->SEQ_number = seqnum;  in mi_tpi_conn_ind()
1411 		mp->b_datap->db_type = M_PROTO;  in mi_tpi_conn_ind()
1413 	return (mp);  in mi_tpi_conn_ind()
1422 	MBLKP	mp;  in mi_tpi_extconn_ind()  local
1426 	if ((mp = mi_tpi_trailer_alloc(trailer_mp, len, T_EXTCONN_IND)) !=  in mi_tpi_extconn_ind()
1428 		mp->b_wptr = &mp->b_rptr[sizeof (struct T_extconn_ind)];  in mi_tpi_extconn_ind()
1429 		mi_tpi_addr_and_opt(mp, src, src_length, opt, opt_length);  in mi_tpi_extconn_ind()
1430 		((struct T_extconn_ind *)mp->b_rptr)->DEST_length = dst_length;  in mi_tpi_extconn_ind()
1431 		((struct T_extconn_ind *)mp->b_rptr)->DEST_offset =  in mi_tpi_extconn_ind()
1432 		    (t_scalar_t)(mp->b_wptr - mp->b_rptr);  in mi_tpi_extconn_ind()
1434 			bcopy(dst, (char *)mp->b_wptr, dst_length);  in mi_tpi_extconn_ind()
1435 			mp->b_wptr += dst_length;  in mi_tpi_extconn_ind()
1437 		((struct T_extconn_ind *)mp->b_rptr)->SEQ_number = seqnum;  in mi_tpi_extconn_ind()
1438 		mp->b_datap->db_type = M_PROTO;  in mi_tpi_extconn_ind()
1440 	return (mp);  in mi_tpi_extconn_ind()
1446 	MBLKP	mp;  in mi_tpi_discon_ind()  local
1449 	if ((mp = mi_tpi_trailer_alloc(trailer_mp,  in mi_tpi_discon_ind()
1451 		tdi = (struct T_discon_ind *)mp->b_rptr;  in mi_tpi_discon_ind()
1455 	return (mp);  in mi_tpi_discon_ind()
1463 mi_tpi_err_ack_alloc(MBLKP mp, t_scalar_t tlierr, int unixerr)  in mi_tpi_err_ack_alloc()  argument
1468 	if (!mp)  in mi_tpi_err_ack_alloc()
1470 	error_prim = ((TPRIMP)mp->b_rptr)->type;  in mi_tpi_err_ack_alloc()
1471 	if ((mp = tpi_ack_alloc(mp, sizeof (struct T_error_ack),  in mi_tpi_err_ack_alloc()
1473 		teackp = (struct T_error_ack *)mp->b_rptr;  in mi_tpi_err_ack_alloc()
1478 	return (mp);  in mi_tpi_err_ack_alloc()
1482 mi_tpi_ok_ack_alloc_extra(MBLKP mp, int extra)  in mi_tpi_ok_ack_alloc_extra()  argument
1486 	if (!mp)  in mi_tpi_ok_ack_alloc_extra()
1488 	correct_prim = ((TPRIMP)mp->b_rptr)->type;  in mi_tpi_ok_ack_alloc_extra()
1489 	if ((mp = tpi_ack_alloc(mp, sizeof (struct T_ok_ack) + extra,  in mi_tpi_ok_ack_alloc_extra()
1491 		((struct T_ok_ack *)mp->b_rptr)->CORRECT_prim = correct_prim;  in mi_tpi_ok_ack_alloc_extra()
1492 		mp->b_wptr -= extra;  in mi_tpi_ok_ack_alloc_extra()
1494 	return (mp);  in mi_tpi_ok_ack_alloc_extra()
1498 mi_tpi_ok_ack_alloc(MBLKP mp)  in mi_tpi_ok_ack_alloc()  argument
1500 	return (mi_tpi_ok_ack_alloc_extra(mp, 0));  in mi_tpi_ok_ack_alloc()
1506 	MBLKP	mp;  in mi_tpi_ordrel_ind()  local
1508 	if ((mp = allocb(sizeof (struct T_ordrel_ind), BPRI_HI)) != NULL) {  in mi_tpi_ordrel_ind()
1509 		mp->b_datap->db_type = M_PROTO;  in mi_tpi_ordrel_ind()
1510 		((struct T_ordrel_ind *)mp->b_rptr)->PRIM_type = T_ORDREL_IND;  in mi_tpi_ordrel_ind()
1511 		mp->b_wptr += sizeof (struct T_ordrel_ind);  in mi_tpi_ordrel_ind()
1513 	return (mp);  in mi_tpi_ordrel_ind()
1519 	MBLKP	mp;  in mi_tpi_trailer_alloc()  local
1521 	if ((mp = allocb(size, BPRI_MED)) != NULL) {  in mi_tpi_trailer_alloc()
1522 		mp->b_cont = trailer_mp;  in mi_tpi_trailer_alloc()
1523 		mp->b_datap->db_type = M_PROTO;  in mi_tpi_trailer_alloc()
1524 		((union T_primitives *)mp->b_rptr)->type = type;  in mi_tpi_trailer_alloc()
1525 		mp->b_wptr += size;  in mi_tpi_trailer_alloc()
1527 	return (mp);  in mi_tpi_trailer_alloc()
1535 	MBLKP	mp;  in mi_tpi_uderror_ind()  local
1539 	if ((mp = allocb(len, BPRI_HI)) != NULL) {  in mi_tpi_uderror_ind()
1540 		mp->b_datap->db_type = M_PROTO;  in mi_tpi_uderror_ind()
1541 		tudei = (struct T_uderror_ind *)mp->b_rptr;  in mi_tpi_uderror_ind()
1544 		mp->b_wptr = &mp->b_rptr[sizeof (struct T_uderror_ind)];  in mi_tpi_uderror_ind()
1545 		mi_tpi_addr_and_opt(mp, dest, dest_length, opt, opt_length);  in mi_tpi_uderror_ind()
1547 	return (mp);  in mi_tpi_uderror_ind()