514 lines
13 KiB
C
514 lines
13 KiB
C
/* $NetBSD: tty_43.c,v 1.29 2008/11/19 18:36:02 ad Exp $ */
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/*-
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* Copyright (c) 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1982, 1986, 1991, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)tty_compat.c 8.2 (Berkeley) 1/9/95
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*/
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/*
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* mapping routines for old line discipline (yuck)
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: tty_43.c,v 1.29 2008/11/19 18:36:02 ad Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/ioctl.h>
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#include <sys/proc.h>
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#include <sys/conf.h>
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#include <sys/tty.h>
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#include <sys/termios.h>
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#include <sys/file.h>
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#include <sys/kernel.h>
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#include <sys/syslog.h>
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#include <sys/ioctl_compat.h>
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int ttydebug = 0;
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static const struct speedtab compatspeeds[] = {
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#define MAX_SPEED 17
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{ 115200, 17 },
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{ 57600, 16 },
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{ 38400, 15 },
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{ 19200, 14 },
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{ 9600, 13 },
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{ 4800, 12 },
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{ 2400, 11 },
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{ 1800, 10 },
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{ 1200, 9 },
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{ 600, 8 },
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{ 300, 7 },
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{ 200, 6 },
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{ 150, 5 },
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{ 134, 4 },
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{ 110, 3 },
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{ 75, 2 },
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{ 50, 1 },
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{ 0, 0 },
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{ -1, -1 },
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};
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static const int compatspcodes[] = {
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0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
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1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200
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};
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static int ttcompatgetflags(struct tty *);
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static void ttcompatsetflags(struct tty *, struct termios *);
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static void ttcompatsetlflags(struct tty *, struct termios *);
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int ttcompat(struct tty *, u_long, void *, int, struct lwp *);
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/*ARGSUSED*/
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int
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ttcompat(struct tty *tp, u_long com, void *data, int flag, struct lwp *l)
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{
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switch (com) {
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case TIOCGETP: {
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struct sgttyb *sg = (struct sgttyb *)data;
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u_char *cc;
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int speed;
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mutex_spin_enter(&tty_lock);
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cc = tp->t_cc;
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speed = ttspeedtab(tp->t_ospeed, compatspeeds);
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sg->sg_ospeed = (speed == -1) ? MAX_SPEED : speed;
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if (tp->t_ispeed == 0)
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sg->sg_ispeed = sg->sg_ospeed;
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else {
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speed = ttspeedtab(tp->t_ispeed, compatspeeds);
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sg->sg_ispeed = (speed == -1) ? MAX_SPEED : speed;
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}
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sg->sg_erase = cc[VERASE];
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sg->sg_kill = cc[VKILL];
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sg->sg_flags = ttcompatgetflags(tp);
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mutex_spin_exit(&tty_lock);
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break;
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}
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case TIOCSETP:
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case TIOCSETN: {
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struct sgttyb *sg = (struct sgttyb *)data;
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struct termios term;
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int speed;
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mutex_spin_enter(&tty_lock);
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term = tp->t_termios;
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if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0)
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term.c_ispeed = speed;
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else
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term.c_ispeed = compatspcodes[speed];
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if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
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term.c_ospeed = speed;
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else
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term.c_ospeed = compatspcodes[speed];
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term.c_cc[VERASE] = sg->sg_erase;
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term.c_cc[VKILL] = sg->sg_kill;
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tp->t_flags = (ttcompatgetflags(tp)&0xffff0000) | (sg->sg_flags&0xffff);
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ttcompatsetflags(tp, &term);
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mutex_spin_exit(&tty_lock);
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return (ttioctl(tp, com == TIOCSETP ? TIOCSETAF : TIOCSETA,
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(void *)&term, flag, l));
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}
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case TIOCGETC: {
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struct tchars *tc = (struct tchars *)data;
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u_char *cc = tp->t_cc;
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tc->t_intrc = cc[VINTR];
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tc->t_quitc = cc[VQUIT];
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tc->t_startc = cc[VSTART];
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tc->t_stopc = cc[VSTOP];
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tc->t_eofc = cc[VEOF];
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tc->t_brkc = cc[VEOL];
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break;
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}
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case TIOCSETC: {
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struct tchars *tc = (struct tchars *)data;
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u_char *cc = tp->t_cc;
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cc[VINTR] = tc->t_intrc;
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cc[VQUIT] = tc->t_quitc;
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cc[VSTART] = tc->t_startc;
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cc[VSTOP] = tc->t_stopc;
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cc[VEOF] = tc->t_eofc;
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cc[VEOL] = tc->t_brkc;
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if (tc->t_brkc == (char)-1)
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cc[VEOL2] = _POSIX_VDISABLE;
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break;
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}
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case TIOCSLTC: {
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struct ltchars *ltc = (struct ltchars *)data;
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u_char *cc = tp->t_cc;
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cc[VSUSP] = ltc->t_suspc;
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cc[VDSUSP] = ltc->t_dsuspc;
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cc[VREPRINT] = ltc->t_rprntc;
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cc[VDISCARD] = ltc->t_flushc;
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cc[VWERASE] = ltc->t_werasc;
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cc[VLNEXT] = ltc->t_lnextc;
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break;
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}
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case TIOCGLTC: {
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struct ltchars *ltc = (struct ltchars *)data;
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u_char *cc = tp->t_cc;
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ltc->t_suspc = cc[VSUSP];
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ltc->t_dsuspc = cc[VDSUSP];
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ltc->t_rprntc = cc[VREPRINT];
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ltc->t_flushc = cc[VDISCARD];
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ltc->t_werasc = cc[VWERASE];
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ltc->t_lnextc = cc[VLNEXT];
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break;
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}
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case TIOCLBIS:
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case TIOCLBIC:
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case TIOCLSET: {
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struct termios term;
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int flags;
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mutex_spin_enter(&tty_lock);
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term = tp->t_termios;
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flags = ttcompatgetflags(tp);
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switch (com) {
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case TIOCLSET:
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tp->t_flags = (flags&0xffff) | (*(int *)data<<16);
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break;
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case TIOCLBIS:
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tp->t_flags = flags | (*(int *)data<<16);
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break;
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case TIOCLBIC:
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tp->t_flags = flags & ~(*(int *)data<<16);
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break;
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}
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ttcompatsetlflags(tp, &term);
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mutex_spin_exit(&tty_lock);
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return (ttioctl(tp, TIOCSETA, (void *)&term, flag, l));
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}
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case TIOCLGET:
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mutex_spin_enter(&tty_lock);
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*(int *)data = ttcompatgetflags(tp)>>16;
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mutex_spin_exit(&tty_lock);
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if (ttydebug)
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printf("CLGET: returning %x\n", *(int *)data);
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break;
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case OTIOCGETD:
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mutex_spin_enter(&tty_lock);
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*(int *)data = (tp->t_linesw == NULL) ?
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2 /* XXX old NTTYDISC */ : tp->t_linesw->l_no;
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mutex_spin_exit(&tty_lock);
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break;
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case OTIOCSETD: {
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int ldisczero = 0;
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return (ttioctl(tp, TIOCSETD,
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*(int *)data == 2 ? (void *)&ldisczero : data, flag,
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l));
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}
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case OTIOCCONS:
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*(int *)data = 1;
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return (ttioctl(tp, TIOCCONS, data, flag, l));
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case TIOCHPCL:
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mutex_spin_enter(&tty_lock);
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SET(tp->t_cflag, HUPCL);
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mutex_spin_exit(&tty_lock);
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break;
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case TIOCGSID:
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mutex_enter(proc_lock);
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if (tp->t_session == NULL) {
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mutex_exit(proc_lock);
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return ENOTTY;
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}
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if (tp->t_session->s_leader == NULL) {
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mutex_exit(proc_lock);
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return ENOTTY;
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}
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*(int *) data = tp->t_session->s_leader->p_pid;
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mutex_exit(proc_lock);
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break;
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default:
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return (EPASSTHROUGH);
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}
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return (0);
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}
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static int
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ttcompatgetflags(struct tty *tp)
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{
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tcflag_t iflag = tp->t_iflag;
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tcflag_t lflag = tp->t_lflag;
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tcflag_t oflag = tp->t_oflag;
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tcflag_t cflag = tp->t_cflag;
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int flags = 0;
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KASSERT(mutex_owned(&tty_lock));
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if (ISSET(iflag, IXOFF))
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SET(flags, TANDEM);
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if (ISSET(iflag, ICRNL) || ISSET(oflag, ONLCR))
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SET(flags, CRMOD);
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if (ISSET(cflag, PARENB)) {
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if (ISSET(iflag, INPCK)) {
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if (ISSET(cflag, PARODD))
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SET(flags, ODDP);
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else
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SET(flags, EVENP);
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} else
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SET(flags, ANYP);
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}
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if (!ISSET(lflag, ICANON)) {
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/* fudge */
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if (ISSET(iflag, IXON) || ISSET(lflag, ISIG|IEXTEN) ||
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ISSET(cflag, PARENB))
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SET(flags, CBREAK);
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else
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SET(flags, RAW);
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}
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if (ISSET(flags, RAW))
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SET(flags, ISSET(tp->t_flags, LITOUT|PASS8));
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else if (ISSET(cflag, CSIZE) == CS8) {
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if (!ISSET(oflag, OPOST))
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SET(flags, LITOUT);
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if (!ISSET(iflag, ISTRIP))
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SET(flags, PASS8);
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}
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if (ISSET(cflag, MDMBUF))
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SET(flags, MDMBUF);
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if (!ISSET(cflag, HUPCL))
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SET(flags, NOHANG);
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if (ISSET(oflag, OXTABS))
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SET(flags, XTABS);
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if (ISSET(lflag, ECHOE))
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SET(flags, CRTERA|CRTBS);
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if (ISSET(lflag, ECHOKE))
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SET(flags, CRTKIL|CRTBS);
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if (ISSET(lflag, ECHOPRT))
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SET(flags, PRTERA);
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if (ISSET(lflag, ECHOCTL))
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SET(flags, CTLECH);
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if (!ISSET(iflag, IXANY))
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SET(flags, DECCTQ);
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SET(flags, ISSET(lflag, ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH));
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if (ttydebug)
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printf("getflags: %x\n", flags);
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return (flags);
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}
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static void
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ttcompatsetflags(struct tty *tp, struct termios *t)
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{
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int flags = tp->t_flags;
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KASSERT(mutex_owned(&tty_lock));
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tcflag_t iflag = t->c_iflag;
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tcflag_t oflag = t->c_oflag;
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tcflag_t lflag = t->c_lflag;
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tcflag_t cflag = t->c_cflag;
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if (ISSET(flags, TANDEM))
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SET(iflag, IXOFF);
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else
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CLR(iflag, IXOFF);
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if (ISSET(flags, ECHO))
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SET(lflag, ECHO);
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else
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CLR(lflag, ECHO);
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if (ISSET(flags, CRMOD)) {
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SET(iflag, ICRNL);
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SET(oflag, ONLCR);
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} else {
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CLR(iflag, ICRNL);
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CLR(oflag, ONLCR);
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}
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if (ISSET(flags, XTABS))
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SET(oflag, OXTABS);
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else
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CLR(oflag, OXTABS);
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if (ISSET(flags, RAW)) {
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iflag &= IXOFF;
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CLR(lflag, ISIG|ICANON|IEXTEN);
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CLR(cflag, PARENB);
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} else {
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SET(iflag, BRKINT|IXON|IMAXBEL);
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SET(lflag, ISIG|IEXTEN);
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if (ISSET(flags, CBREAK))
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CLR(lflag, ICANON);
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else
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SET(lflag, ICANON);
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switch (ISSET(flags, ANYP)) {
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case 0:
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CLR(cflag, PARENB);
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break;
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case ANYP:
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SET(cflag, PARENB);
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CLR(iflag, INPCK);
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break;
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case EVENP:
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SET(cflag, PARENB);
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SET(iflag, INPCK);
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CLR(cflag, PARODD);
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break;
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case ODDP:
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SET(cflag, PARENB);
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SET(iflag, INPCK);
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SET(cflag, PARODD);
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break;
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}
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}
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if (ISSET(flags, RAW|LITOUT|PASS8)) {
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CLR(cflag, CSIZE);
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SET(cflag, CS8);
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if (!ISSET(flags, RAW|PASS8))
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SET(iflag, ISTRIP);
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else
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CLR(iflag, ISTRIP);
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if (!ISSET(flags, RAW|LITOUT))
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SET(oflag, OPOST);
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else
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CLR(oflag, OPOST);
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} else {
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CLR(cflag, CSIZE);
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SET(cflag, CS7);
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SET(iflag, ISTRIP);
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SET(oflag, OPOST);
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}
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t->c_iflag = iflag;
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t->c_oflag = oflag;
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t->c_lflag = lflag;
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t->c_cflag = cflag;
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}
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static void
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ttcompatsetlflags(struct tty *tp, struct termios *t)
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{
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int flags = tp->t_flags;
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tcflag_t iflag = t->c_iflag;
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tcflag_t oflag = t->c_oflag;
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tcflag_t lflag = t->c_lflag;
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tcflag_t cflag = t->c_cflag;
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KASSERT(mutex_owned(&tty_lock));
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/* Nothing we can do with CRTBS. */
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if (ISSET(flags, PRTERA))
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SET(lflag, ECHOPRT);
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else
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CLR(lflag, ECHOPRT);
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if (ISSET(flags, CRTERA))
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SET(lflag, ECHOE);
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else
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CLR(lflag, ECHOE);
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/* Nothing we can do with TILDE. */
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if (ISSET(flags, MDMBUF))
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SET(cflag, MDMBUF);
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else
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CLR(cflag, MDMBUF);
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if (ISSET(flags, NOHANG))
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CLR(cflag, HUPCL);
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else
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SET(cflag, HUPCL);
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if (ISSET(flags, CRTKIL))
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SET(lflag, ECHOKE);
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else
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CLR(lflag, ECHOKE);
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if (ISSET(flags, CTLECH))
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SET(lflag, ECHOCTL);
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else
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CLR(lflag, ECHOCTL);
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if (!ISSET(flags, DECCTQ))
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SET(iflag, IXANY);
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else
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CLR(iflag, IXANY);
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CLR(lflag, TOSTOP|FLUSHO|PENDIN|NOFLSH);
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SET(lflag, ISSET(flags, TOSTOP|FLUSHO|PENDIN|NOFLSH));
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if (ISSET(flags, RAW|LITOUT|PASS8)) {
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CLR(cflag, CSIZE);
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SET(cflag, CS8);
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if (!ISSET(flags, RAW|PASS8))
|
|
SET(iflag, ISTRIP);
|
|
else
|
|
CLR(iflag, ISTRIP);
|
|
if (!ISSET(flags, RAW|LITOUT))
|
|
SET(oflag, OPOST);
|
|
else
|
|
CLR(oflag, OPOST);
|
|
} else {
|
|
CLR(cflag, CSIZE);
|
|
SET(cflag, CS7);
|
|
SET(iflag, ISTRIP);
|
|
SET(oflag, OPOST);
|
|
}
|
|
|
|
t->c_iflag = iflag;
|
|
t->c_oflag = oflag;
|
|
t->c_lflag = lflag;
|
|
t->c_cflag = cflag;
|
|
}
|