NetBSD-5.0.2/sys/compat/common/tty_43.c
/* $NetBSD: tty_43.c,v 1.27 2008/04/28 20:23:41 martin Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*-
* Copyright (c) 1982, 1986, 1991, 1993
* The Regents of the University of California. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* @(#)tty_compat.c 8.2 (Berkeley) 1/9/95
*/
/*
* mapping routines for old line discipline (yuck)
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: tty_43.c,v 1.27 2008/04/28 20:23:41 martin Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/ioctl.h>
#include <sys/proc.h>
#include <sys/conf.h>
#include <sys/tty.h>
#include <sys/termios.h>
#include <sys/file.h>
#include <sys/kernel.h>
#include <sys/syslog.h>
#include <sys/ioctl_compat.h>
/*
* XXX libcompat files should be included with config attributes
*/
#ifdef COMPAT_OLDTTY
int ttydebug = 0;
static const struct speedtab compatspeeds[] = {
#define MAX_SPEED 17
{ 115200, 17 },
{ 57600, 16 },
{ 38400, 15 },
{ 19200, 14 },
{ 9600, 13 },
{ 4800, 12 },
{ 2400, 11 },
{ 1800, 10 },
{ 1200, 9 },
{ 600, 8 },
{ 300, 7 },
{ 200, 6 },
{ 150, 5 },
{ 134, 4 },
{ 110, 3 },
{ 75, 2 },
{ 50, 1 },
{ 0, 0 },
{ -1, -1 },
};
static const int compatspcodes[] = {
0, 50, 75, 110, 134, 150, 200, 300, 600, 1200,
1800, 2400, 4800, 9600, 19200, 38400, 57600, 115200
};
static int ttcompatgetflags(struct tty *);
static void ttcompatsetflags(struct tty *, struct termios *);
static void ttcompatsetlflags(struct tty *, struct termios *);
/*ARGSUSED*/
int
ttcompat(struct tty *tp, u_long com, void *data, int flag, struct lwp *l)
{
switch (com) {
case TIOCGETP: {
struct sgttyb *sg = (struct sgttyb *)data;
u_char *cc;
int speed;
mutex_spin_enter(&tty_lock);
cc = tp->t_cc;
speed = ttspeedtab(tp->t_ospeed, compatspeeds);
sg->sg_ospeed = (speed == -1) ? MAX_SPEED : speed;
if (tp->t_ispeed == 0)
sg->sg_ispeed = sg->sg_ospeed;
else {
speed = ttspeedtab(tp->t_ispeed, compatspeeds);
sg->sg_ispeed = (speed == -1) ? MAX_SPEED : speed;
}
sg->sg_erase = cc[VERASE];
sg->sg_kill = cc[VKILL];
sg->sg_flags = ttcompatgetflags(tp);
mutex_spin_exit(&tty_lock);
break;
}
case TIOCSETP:
case TIOCSETN: {
struct sgttyb *sg = (struct sgttyb *)data;
struct termios term;
int speed;
mutex_spin_enter(&tty_lock);
term = tp->t_termios;
if ((speed = sg->sg_ispeed) > MAX_SPEED || speed < 0)
term.c_ispeed = speed;
else
term.c_ispeed = compatspcodes[speed];
if ((speed = sg->sg_ospeed) > MAX_SPEED || speed < 0)
term.c_ospeed = speed;
else
term.c_ospeed = compatspcodes[speed];
term.c_cc[VERASE] = sg->sg_erase;
term.c_cc[VKILL] = sg->sg_kill;
tp->t_flags = (ttcompatgetflags(tp)&0xffff0000) | (sg->sg_flags&0xffff);
ttcompatsetflags(tp, &term);
mutex_spin_exit(&tty_lock);
return (ttioctl(tp, com == TIOCSETP ? TIOCSETAF : TIOCSETA,
(void *)&term, flag, l));
}
case TIOCGETC: {
struct tchars *tc = (struct tchars *)data;
u_char *cc = tp->t_cc;
tc->t_intrc = cc[VINTR];
tc->t_quitc = cc[VQUIT];
tc->t_startc = cc[VSTART];
tc->t_stopc = cc[VSTOP];
tc->t_eofc = cc[VEOF];
tc->t_brkc = cc[VEOL];
break;
}
case TIOCSETC: {
struct tchars *tc = (struct tchars *)data;
u_char *cc = tp->t_cc;
cc[VINTR] = tc->t_intrc;
cc[VQUIT] = tc->t_quitc;
cc[VSTART] = tc->t_startc;
cc[VSTOP] = tc->t_stopc;
cc[VEOF] = tc->t_eofc;
cc[VEOL] = tc->t_brkc;
if (tc->t_brkc == (char)-1)
cc[VEOL2] = _POSIX_VDISABLE;
break;
}
case TIOCSLTC: {
struct ltchars *ltc = (struct ltchars *)data;
u_char *cc = tp->t_cc;
cc[VSUSP] = ltc->t_suspc;
cc[VDSUSP] = ltc->t_dsuspc;
cc[VREPRINT] = ltc->t_rprntc;
cc[VDISCARD] = ltc->t_flushc;
cc[VWERASE] = ltc->t_werasc;
cc[VLNEXT] = ltc->t_lnextc;
break;
}
case TIOCGLTC: {
struct ltchars *ltc = (struct ltchars *)data;
u_char *cc = tp->t_cc;
ltc->t_suspc = cc[VSUSP];
ltc->t_dsuspc = cc[VDSUSP];
ltc->t_rprntc = cc[VREPRINT];
ltc->t_flushc = cc[VDISCARD];
ltc->t_werasc = cc[VWERASE];
ltc->t_lnextc = cc[VLNEXT];
break;
}
case TIOCLBIS:
case TIOCLBIC:
case TIOCLSET: {
struct termios term;
int flags;
mutex_spin_enter(&tty_lock);
term = tp->t_termios;
flags = ttcompatgetflags(tp);
switch (com) {
case TIOCLSET:
tp->t_flags = (flags&0xffff) | (*(int *)data<<16);
break;
case TIOCLBIS:
tp->t_flags = flags | (*(int *)data<<16);
break;
case TIOCLBIC:
tp->t_flags = flags & ~(*(int *)data<<16);
break;
}
ttcompatsetlflags(tp, &term);
mutex_spin_exit(&tty_lock);
return (ttioctl(tp, TIOCSETA, (void *)&term, flag, l));
}
case TIOCLGET:
mutex_spin_enter(&tty_lock);
*(int *)data = ttcompatgetflags(tp)>>16;
mutex_spin_exit(&tty_lock);
if (ttydebug)
printf("CLGET: returning %x\n", *(int *)data);
break;
case OTIOCGETD:
mutex_spin_enter(&tty_lock);
*(int *)data = (tp->t_linesw == NULL) ?
2 /* XXX old NTTYDISC */ : tp->t_linesw->l_no;
mutex_spin_exit(&tty_lock);
break;
case OTIOCSETD: {
int ldisczero = 0;
return (ttioctl(tp, TIOCSETD,
*(int *)data == 2 ? (void *)&ldisczero : data, flag,
l));
}
case OTIOCCONS:
*(int *)data = 1;
return (ttioctl(tp, TIOCCONS, data, flag, l));
case TIOCHPCL:
mutex_spin_enter(&tty_lock);
SET(tp->t_cflag, HUPCL);
mutex_spin_exit(&tty_lock);
break;
case TIOCGSID:
mutex_enter(proc_lock);
if (tp->t_session == NULL) {
mutex_exit(proc_lock);
return ENOTTY;
}
if (tp->t_session->s_leader == NULL) {
mutex_exit(proc_lock);
return ENOTTY;
}
*(int *) data = tp->t_session->s_leader->p_pid;
mutex_exit(proc_lock);
break;
default:
return (EPASSTHROUGH);
}
return (0);
}
static int
ttcompatgetflags(struct tty *tp)
{
tcflag_t iflag = tp->t_iflag;
tcflag_t lflag = tp->t_lflag;
tcflag_t oflag = tp->t_oflag;
tcflag_t cflag = tp->t_cflag;
int flags = 0;
KASSERT(mutex_owned(&tty_lock));
if (ISSET(iflag, IXOFF))
SET(flags, TANDEM);
if (ISSET(iflag, ICRNL) || ISSET(oflag, ONLCR))
SET(flags, CRMOD);
if (ISSET(cflag, PARENB)) {
if (ISSET(iflag, INPCK)) {
if (ISSET(cflag, PARODD))
SET(flags, ODDP);
else
SET(flags, EVENP);
} else
SET(flags, ANYP);
}
if (!ISSET(lflag, ICANON)) {
/* fudge */
if (ISSET(iflag, IXON) || ISSET(lflag, ISIG|IEXTEN) ||
ISSET(cflag, PARENB))
SET(flags, CBREAK);
else
SET(flags, RAW);
}
if (ISSET(flags, RAW))
SET(flags, ISSET(tp->t_flags, LITOUT|PASS8));
else if (ISSET(cflag, CSIZE) == CS8) {
if (!ISSET(oflag, OPOST))
SET(flags, LITOUT);
if (!ISSET(iflag, ISTRIP))
SET(flags, PASS8);
}
if (ISSET(cflag, MDMBUF))
SET(flags, MDMBUF);
if (!ISSET(cflag, HUPCL))
SET(flags, NOHANG);
if (ISSET(oflag, OXTABS))
SET(flags, XTABS);
if (ISSET(lflag, ECHOE))
SET(flags, CRTERA|CRTBS);
if (ISSET(lflag, ECHOKE))
SET(flags, CRTKIL|CRTBS);
if (ISSET(lflag, ECHOPRT))
SET(flags, PRTERA);
if (ISSET(lflag, ECHOCTL))
SET(flags, CTLECH);
if (!ISSET(iflag, IXANY))
SET(flags, DECCTQ);
SET(flags, ISSET(lflag, ECHO|TOSTOP|FLUSHO|PENDIN|NOFLSH));
if (ttydebug)
printf("getflags: %x\n", flags);
return (flags);
}
static void
ttcompatsetflags(struct tty *tp, struct termios *t)
{
int flags = tp->t_flags;
KASSERT(mutex_owned(&tty_lock));
tcflag_t iflag = t->c_iflag;
tcflag_t oflag = t->c_oflag;
tcflag_t lflag = t->c_lflag;
tcflag_t cflag = t->c_cflag;
if (ISSET(flags, TANDEM))
SET(iflag, IXOFF);
else
CLR(iflag, IXOFF);
if (ISSET(flags, ECHO))
SET(lflag, ECHO);
else
CLR(lflag, ECHO);
if (ISSET(flags, CRMOD)) {
SET(iflag, ICRNL);
SET(oflag, ONLCR);
} else {
CLR(iflag, ICRNL);
CLR(oflag, ONLCR);
}
if (ISSET(flags, XTABS))
SET(oflag, OXTABS);
else
CLR(oflag, OXTABS);
if (ISSET(flags, RAW)) {
iflag &= IXOFF;
CLR(lflag, ISIG|ICANON|IEXTEN);
CLR(cflag, PARENB);
} else {
SET(iflag, BRKINT|IXON|IMAXBEL);
SET(lflag, ISIG|IEXTEN);
if (ISSET(flags, CBREAK))
CLR(lflag, ICANON);
else
SET(lflag, ICANON);
switch (ISSET(flags, ANYP)) {
case 0:
CLR(cflag, PARENB);
break;
case ANYP:
SET(cflag, PARENB);
CLR(iflag, INPCK);
break;
case EVENP:
SET(cflag, PARENB);
SET(iflag, INPCK);
CLR(cflag, PARODD);
break;
case ODDP:
SET(cflag, PARENB);
SET(iflag, INPCK);
SET(cflag, PARODD);
break;
}
}
if (ISSET(flags, RAW|LITOUT|PASS8)) {
CLR(cflag, CSIZE);
SET(cflag, CS8);
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;
}
static void
ttcompatsetlflags(struct tty *tp, struct termios *t)
{
int flags = tp->t_flags;
tcflag_t iflag = t->c_iflag;
tcflag_t oflag = t->c_oflag;
tcflag_t lflag = t->c_lflag;
tcflag_t cflag = t->c_cflag;
KASSERT(mutex_owned(&tty_lock));
/* Nothing we can do with CRTBS. */
if (ISSET(flags, PRTERA))
SET(lflag, ECHOPRT);
else
CLR(lflag, ECHOPRT);
if (ISSET(flags, CRTERA))
SET(lflag, ECHOE);
else
CLR(lflag, ECHOE);
/* Nothing we can do with TILDE. */
if (ISSET(flags, MDMBUF))
SET(cflag, MDMBUF);
else
CLR(cflag, MDMBUF);
if (ISSET(flags, NOHANG))
CLR(cflag, HUPCL);
else
SET(cflag, HUPCL);
if (ISSET(flags, CRTKIL))
SET(lflag, ECHOKE);
else
CLR(lflag, ECHOKE);
if (ISSET(flags, CTLECH))
SET(lflag, ECHOCTL);
else
CLR(lflag, ECHOCTL);
if (!ISSET(flags, DECCTQ))
SET(iflag, IXANY);
else
CLR(iflag, IXANY);
CLR(lflag, TOSTOP|FLUSHO|PENDIN|NOFLSH);
SET(lflag, ISSET(flags, TOSTOP|FLUSHO|PENDIN|NOFLSH));
if (ISSET(flags, RAW|LITOUT|PASS8)) {
CLR(cflag, CSIZE);
SET(cflag, CS8);
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;
}
#endif /* COMPAT_OLDTTY */