100 static void ptcwakeup(struct tty *tp, int flag);
272 	struct tty *tp = pti->pt_tty;  in ptsopen()  local
273 	tty_lock(tp);  in ptsopen()
275 	if ((tp->t_state & TS_ISOPEN) == 0) {  in ptsopen()
276 		termioschars(&tp->t_termios);   /* Set up default chars */  in ptsopen()
277 		tp->t_iflag = TTYDEF_IFLAG;  in ptsopen()
278 		tp->t_oflag = TTYDEF_OFLAG;  in ptsopen()
279 		tp->t_lflag = TTYDEF_LFLAG;  in ptsopen()
280 		tp->t_cflag = TTYDEF_CFLAG;  in ptsopen()
281 		tp->t_ispeed = tp->t_ospeed = TTYDEF_SPEED;  in ptsopen()
282 		ttsetwater(tp);         /* would be done in xxparam() */  in ptsopen()
283 	} else if ((tp->t_state & TS_XCLUDE) && kauth_cred_issuser(kauth_cred_get())) {  in ptsopen()
287 	if (tp->t_oproc) {                      /* Ctrlr still around. */  in ptsopen()
288 		(void)(*linesw[tp->t_line].l_modem)(tp, 1);  in ptsopen()
290 	while ((tp->t_state & TS_CARR_ON) == 0) {  in ptsopen()
294 		error = ttysleep(tp, TSA_CARR_ON(tp), TTIPRI | PCATCH, __FUNCTION__, 0);  in ptsopen()
299 	error = (*linesw[tp->t_line].l_open)(dev, tp);  in ptsopen()
303 	CLR(tp->t_state, TS_IOCTL_NOT_OK);  in ptsopen()
305 		ptcwakeup(tp, FREAD | FWRITE);  in ptsopen()
309 	tty_unlock(tp);  in ptsopen()
335 	struct tty *tp;  in ptsclose()  local
341 	tp = pti->pt_tty;  in ptsclose()
342 	tty_lock(tp);  in ptsclose()
344 	save_timeout = tp->t_timeout;  in ptsclose()
345 	tp->t_timeout = 60;  in ptsclose()
350 	err = (*linesw[tp->t_line].l_close)(tp, flag);  in ptsclose()
351 	(void)ttyclose(tp);  in ptsclose()
356 	ptsstop(tp, FREAD | FWRITE);  in ptsclose()
358 	tp->t_timeout = save_timeout;  in ptsclose()
360 	tty_unlock(tp);  in ptsclose()
363 		driver->revoke(minor(dev), tp);  in ptsclose()
375 	struct tty *tp;  in ptsread()  local
382 	tp = pti->pt_tty;  in ptsread()
383 	tty_lock(tp);  in ptsread()
386 	if (tp->t_oproc) {  in ptsread()
387 		error = (*linesw[tp->t_line].l_read)(tp, uio, flag);  in ptsread()
389 	ptcwakeup(tp, FWRITE);  in ptsread()
390 	tty_unlock(tp);  in ptsread()
403 	struct tty *tp;  in ptswrite()  local
409 	tp = pti->pt_tty;  in ptswrite()
410 	tty_lock(tp);  in ptswrite()
412 	if (tp->t_oproc == 0) {  in ptswrite()
415 		error = (*linesw[tp->t_line].l_write)(tp, uio, flag);  in ptswrite()
418 	tty_unlock(tp);  in ptswrite()
432 ptsstart(struct tty *tp)  in ptsstart()  argument
434 	struct ptmx_ioctl *pti = pty_get_ioctl(tp->t_dev, 0, NULL);  in ptsstart()
438 	if (tp->t_state & TS_TTSTOP) {  in ptsstart()
445 	ptcwakeup(tp, FREAD);  in ptsstart()
464 ptcwakeup(struct tty *tp, int flag)  in ptcwakeup()  argument
466 	struct ptmx_ioctl *pti = pty_get_ioctl(tp->t_dev, 0, NULL);  in ptcwakeup()
473 		wakeup(TSA_PTC_READ(tp));  in ptcwakeup()
478 		wakeup(TSA_PTC_WRITE(tp));  in ptcwakeup()
494 	struct tty *tp = pti->pt_tty;  in ptcopen()  local
495 	tty_lock(tp);  in ptcopen()
498 	if (tp->t_oproc || (tp->t_state & TS_ISOPEN)) {  in ptcopen()
499 		tty_unlock(tp);  in ptcopen()
504 		if (!tp->t_oproc) {  in ptcopen()
509 	tp->t_oproc = ptsstart;  in ptcopen()
510 	CLR(tp->t_state, TS_ZOMBIE);  in ptcopen()
511 	SET(tp->t_state, TS_IOCTL_NOT_OK);  in ptcopen()
513 	tp->t_stop = ptsstop;  in ptcopen()
515 	(void)(*linesw[tp->t_line].l_modem)(tp, 1);  in ptcopen()
516 	tp->t_lflag &= ~EXTPROC;  in ptcopen()
524 	tty_unlock(tp);  in ptcopen()
533 	struct tty *tp;  in ptcclose()  local
541 	tp = pti->pt_tty;  in ptcclose()
542 	tty_lock(tp);  in ptcclose()
546 	if (constty == tp) {  in ptcclose()
549 			if (freetp == tp) {  in ptcclose()
563 		(*cdevsw[major(tp->t_dev)].d_ioctl)  in ptcclose()
564 		(tp->t_dev, KMIOCDISABLCONS, NULL, 0, current_proc());  in ptcclose()
568 		if (constty == tp) {  in ptcclose()
583 	(void)(*linesw[tp->t_line].l_modem)(tp, 0);  in ptcclose()
584 	if (tp->t_state & TS_ISOPEN) {  in ptcclose()
585 		tp->t_state &= ~(TS_CARR_ON | TS_CONNECTED);  in ptcclose()
586 		tp->t_state |= TS_ZOMBIE;  in ptcclose()
587 		ttyflush(tp, FREAD | FWRITE);  in ptcclose()
594 	tp->t_oproc = NULL;  in ptcclose()
604 	tty_unlock(tp);  in ptcclose()
608 		mac_pty_notify_close(p, tp, dev, NULL);  in ptcclose()
620 	struct tty *tp;  local
627 	tp = pti->pt_tty;
628 	tty_lock(tp);
637 		if (tp->t_state & TS_ISOPEN) {
648 						termios64to32((struct user_termios *)&tp->t_termios,
655 						termios32to64((struct termios32 *)&tp->t_termios,
660 						cc = MIN((int)uio_resid(uio), (int)sizeof(tp->t_termios));
661 						uiomove((caddr_t)&tp->t_termios, cc, uio);
675 			if (tp->t_outq.c_cc && (tp->t_state & TS_TTSTOP) == 0) {
679 		if ((tp->t_state & TS_CONNECTED) == 0) {
686 		error = ttysleep(tp, TSA_PTC_READ(tp), TTIPRI | PCATCH, __FUNCTION__, 0);
695 		cc = q_to_b(&tp->t_outq, (u_char *)buf, MIN((int)uio_resid(uio), BUFSIZ));
701 	(*linesw[tp->t_line].l_start)(tp);
704 	tty_unlock(tp);
715 ptsstop(struct tty* tp, int flush)  argument
717 	struct ptmx_ioctl *pti = pty_get_ioctl(tp->t_dev, 0, NULL);
740 	ptcwakeup(tp, flag);
754 	struct tty *tp;  local
760 	tp = pti->pt_tty;
761 	if (tp == NULL) {
765 	tty_lock(tp);
769 		if (ISSET(tp->t_state, TS_ZOMBIE)) {
774 		retval = ttnread(tp);
779 		selrecord(p, &tp->t_rsel, wql);
782 		if (ISSET(tp->t_state, TS_ZOMBIE)) {
787 		if ((tp->t_outq.c_cc <= tp->t_lowat) &&
788 		    ISSET(tp->t_state, TS_CONNECTED)) {
789 			retval = tp->t_hiwat - tp->t_outq.c_cc;
793 		selrecord(p, &tp->t_wsel, wql);
797 	tty_unlock(tp);
806 	struct tty *tp;  local
812 	tp = pti->pt_tty;
813 	tty_lock(tp);
815 	if ((tp->t_state & TS_CONNECTED) == 0) {
824 		if ((tp->t_state & TS_ISOPEN) &&
825 		    tp->t_outq.c_cc && (tp->t_state & TS_TTSTOP) == 0) {
826 			retval = (driver->fix_7828447) ? tp->t_outq.c_cc : 1;
832 		if ((tp->t_state & TS_ISOPEN) &&
843 		if (tp->t_state & TS_ISOPEN) {
844 			retval = (TTYHOG - 2) - (tp->t_rawq.c_cc + tp->t_canq.c_cc);
849 			if (tp->t_canq.c_cc == 0 && (tp->t_lflag & ICANON)) {
859 	tty_unlock(tp);
865 ptcstop(__unused struct tty *tp, __unused int flush)  argument
880 	struct tty *tp;  local
890 	tp = pti->pt_tty;
891 	tty_lock(tp);
894 	if ((tp->t_state & TS_ISOPEN) == 0) {
906 			if ((tp->t_state & TS_ISOPEN) == 0) {
914 			if ((tp->t_rawq.c_cc + tp->t_canq.c_cc) >= TTYHOG - 2 &&
915 			    (tp->t_canq.c_cc > 0 || !(tp->t_lflag & ICANON))) {
916 				wakeup(TSA_HUP_OR_INPUT(tp));
919 			OS_ANALYZER_SUPPRESS("80961525") (*linesw[tp->t_line].l_rint)(*cp++, tp);
926 	tty_unlock(tp);
935 	if ((tp->t_state & TS_CONNECTED) == 0) {
949 	error = ttysleep(tp, TSA_PTC_WRITE(tp), TTOPRI | PCATCH, __FUNCTION__, 0);
966 	struct tty *tp;  local
978 	tp = pti->pt_tty;
979 	tty_lock(tp);
981 	u_char *cc = tp->t_cc;
989 	    ISSET(tp->t_state, TS_IOCTL_NOT_OK)) {
1006 				ptcwakeup(tp, FREAD);
1008 			tp->t_lflag |= EXTPROC;
1010 			if ((tp->t_lflag & EXTPROC) &&
1013 				ptcwakeup(tp, FREAD);
1015 			tp->t_lflag &= ~EXTPROC;
1025 			*(int *)data = tp->t_pgrp ? tp->t_pgrp->pg_id : 0;
1061 			ndflush(&tp->t_outq, tp->t_outq.c_cc);
1070 			if ((tp->t_lflag & NOFLSH) == 0) {
1071 				ttyflush(tp, FREAD | FWRITE);
1074 			    ((tp->t_lflag & NOKERNINFO) == 0)) {
1075 				ttyinfo_locked(tp);
1083 			tty_pgsignal_locked(tp, *(unsigned int *)data, 1);
1098 						tty_unlock(tp);
1099 						mac_pty_notify_grant(p, tp, dev, NULL);
1100 						tty_lock(tp);
1142 			error = ttioctl_locked(tp, cmd, data, flag, p);
1156 	error = (*linesw[tp->t_line].l_ioctl)(tp, cmd, data, flag, p);
1158 		error = ttioctl_locked(tp, cmd, data, flag, p);
1164 					ptcwakeup(tp, FREAD);
1186 	if ((tp->t_lflag & EXTPROC) && (pti->pt_flags & PF_PKT)) {
1202 			ptcwakeup(tp, FREAD);
1208 	stop = (tp->t_iflag & IXON) && CCEQ(cc[VSTOP], CTRL('s'))
1215 			ptcwakeup(tp, FREAD);
1222 			ptcwakeup(tp, FREAD);
1226 	tty_unlock(tp);