Home | History | Annotate | Line # | Download | only in common
linux_termios.c revision 1.11.2.4
      1 /*	$NetBSD: linux_termios.c,v 1.11.2.4 2002/01/08 00:29:06 nathanw Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1995, 1998 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Frank van der Linden and Eric Haszlakiewicz.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  * 3. All advertising materials mentioning features or use of this software
     19  *    must display the following acknowledgement:
     20  *	This product includes software developed by the NetBSD
     21  *	Foundation, Inc. and its contributors.
     22  * 4. Neither the name of The NetBSD Foundation nor the names of its
     23  *    contributors may be used to endorse or promote products derived
     24  *    from this software without specific prior written permission.
     25  *
     26  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     27  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     28  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     29  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     30  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     31  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     32  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     33  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     34  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     35  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     36  * POSSIBILITY OF SUCH DAMAGE.
     37  */
     38 
     39 #include <sys/cdefs.h>
     40 __KERNEL_RCSID(0, "$NetBSD: linux_termios.c,v 1.11.2.4 2002/01/08 00:29:06 nathanw Exp $");
     41 
     42 #include <sys/param.h>
     43 #include <sys/proc.h>
     44 #include <sys/systm.h>
     45 #include <sys/file.h>
     46 #include <sys/filedesc.h>
     47 #include <sys/ioctl.h>
     48 #include <sys/mount.h>
     49 #include <sys/termios.h>
     50 
     51 #include <sys/syscallargs.h>
     52 
     53 #include <compat/linux/common/linux_types.h>
     54 #include <compat/linux/common/linux_ioctl.h>
     55 #include <compat/linux/common/linux_signal.h>
     56 #include <compat/linux/common/linux_util.h>
     57 #include <compat/linux/common/linux_termios.h>
     58 
     59 #include <compat/linux/linux_syscallargs.h>
     60 
     61 static speed_t linux_speeds[] = {
     62 	0, 50, 75, 110, 134, 150, 200, 300, 600, 1200, 1800, 2400, 4800,
     63 	9600, 19200, 38400, 57600, 115200, 230400
     64 };
     65 
     66 static const int linux_spmasks[] = {
     67 	LINUX_B0, LINUX_B50, LINUX_B75, LINUX_B110, LINUX_B134, LINUX_B150,
     68 	LINUX_B200, LINUX_B300, LINUX_B600, LINUX_B1200, LINUX_B1800,
     69 	LINUX_B2400, LINUX_B4800, LINUX_B9600, LINUX_B19200, LINUX_B38400,
     70 	LINUX_B57600, LINUX_B115200, LINUX_B230400
     71 };
     72 
     73 
     74 static void linux_termio_to_bsd_termios __P((struct linux_termio *,
     75 					     struct termios *));
     76 static void bsd_termios_to_linux_termio __P((struct termios *,
     77 					     struct linux_termio *));
     78 static void linux_termios_to_bsd_termios __P((struct linux_termios *,
     79 					      struct termios *));
     80 static void bsd_termios_to_linux_termios __P((struct termios *,
     81 					      struct linux_termios *));
     82 
     83 /*
     84  * Deal with termio ioctl cruft. This doesn't look very good..
     85  * XXX too much code duplication, obviously..
     86  *
     87  * The conversion routines between Linux and BSD structures assume
     88  * that the fields are already filled with the current values,
     89  * so that fields present in BSD but not in Linux keep their current
     90  * values.
     91  */
     92 
     93 static void
     94 linux_termio_to_bsd_termios(lt, bts)
     95 	struct linux_termio *lt;
     96 	struct termios *bts;
     97 {
     98 	int index;
     99 
    100 	bts->c_iflag = 0;
    101 	bts->c_iflag |= cvtto_bsd_mask(lt->c_iflag, LINUX_IGNBRK, IGNBRK);
    102 	bts->c_iflag |= cvtto_bsd_mask(lt->c_iflag, LINUX_BRKINT, BRKINT);
    103 	bts->c_iflag |= cvtto_bsd_mask(lt->c_iflag, LINUX_IGNPAR, IGNPAR);
    104 	bts->c_iflag |= cvtto_bsd_mask(lt->c_iflag, LINUX_INPCK, INPCK);
    105 	bts->c_iflag |= cvtto_bsd_mask(lt->c_iflag, LINUX_ISTRIP, ISTRIP);
    106 	bts->c_iflag |= cvtto_bsd_mask(lt->c_iflag, LINUX_INLCR, INLCR);
    107 	bts->c_iflag |= cvtto_bsd_mask(lt->c_iflag, LINUX_IGNCR, IGNCR);
    108 	bts->c_iflag |= cvtto_bsd_mask(lt->c_iflag, LINUX_ICRNL, ICRNL);
    109 	bts->c_iflag |= cvtto_bsd_mask(lt->c_iflag, LINUX_IXON, IXON);
    110 	bts->c_iflag |= cvtto_bsd_mask(lt->c_iflag, LINUX_IXANY, IXANY);
    111 	bts->c_iflag |= cvtto_bsd_mask(lt->c_iflag, LINUX_IXOFF, IXOFF);
    112 	bts->c_iflag |= cvtto_bsd_mask(lt->c_iflag, LINUX_IMAXBEL, IMAXBEL);
    113 
    114 	bts->c_oflag = 0;
    115 	bts->c_oflag |= cvtto_bsd_mask(lt->c_oflag, LINUX_OPOST, OPOST);
    116 	bts->c_oflag |= cvtto_bsd_mask(lt->c_oflag, LINUX_ONLCR, ONLCR);
    117 	bts->c_oflag |= cvtto_bsd_mask(lt->c_oflag, LINUX_XTABS, OXTABS);
    118 
    119 	/*
    120 	 * This could have been:
    121 	 * bts->c_cflag = (lt->c_flag & LINUX_CSIZE) << 4
    122 	 * But who knows, those values might perhaps change one day.
    123 	 */
    124 	switch (lt->c_cflag & LINUX_CSIZE) {
    125 	case LINUX_CS5:
    126 		bts->c_cflag = CS5;
    127 		break;
    128 	case LINUX_CS6:
    129 		bts->c_cflag = CS6;
    130 		break;
    131 	case LINUX_CS7:
    132 		bts->c_cflag = CS7;
    133 		break;
    134 	case LINUX_CS8:
    135 		bts->c_cflag = CS8;
    136 		break;
    137 	}
    138 	bts->c_cflag |= cvtto_bsd_mask(lt->c_cflag, LINUX_CSTOPB, CSTOPB);
    139 	bts->c_cflag |= cvtto_bsd_mask(lt->c_cflag, LINUX_CREAD, CREAD);
    140 	bts->c_cflag |= cvtto_bsd_mask(lt->c_cflag, LINUX_PARENB, PARENB);
    141 	bts->c_cflag |= cvtto_bsd_mask(lt->c_cflag, LINUX_PARODD, PARODD);
    142 	bts->c_cflag |= cvtto_bsd_mask(lt->c_cflag, LINUX_HUPCL, HUPCL);
    143 	bts->c_cflag |= cvtto_bsd_mask(lt->c_cflag, LINUX_CLOCAL, CLOCAL);
    144 	bts->c_cflag |= cvtto_bsd_mask(lt->c_cflag, LINUX_CRTSCTS, CRTSCTS);
    145 
    146 	bts->c_lflag = 0;
    147 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_ISIG, ISIG);
    148 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_ICANON, ICANON);
    149 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_ECHO, ECHO);
    150 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_ECHOE, ECHOE);
    151 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_ECHOK, ECHOK);
    152 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_ECHONL, ECHONL);
    153 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_NOFLSH, NOFLSH);
    154 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_TOSTOP, TOSTOP);
    155 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_ECHOCTL, ECHOCTL);
    156 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_ECHOPRT, ECHOPRT);
    157 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_ECHOKE, ECHOKE);
    158 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_FLUSHO, FLUSHO);
    159 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_PENDIN, PENDIN);
    160 	bts->c_lflag |= cvtto_bsd_mask(lt->c_lflag, LINUX_IEXTEN, IEXTEN);
    161 
    162 	index = lt->c_cflag & LINUX_CBAUD;
    163 	if (index & LINUX_CBAUDEX)
    164 		index = (index & ~LINUX_CBAUDEX) + LINUX_NSPEEDS - 1;
    165 	bts->c_ispeed = bts->c_ospeed = linux_speeds[index];
    166 
    167 	bts->c_cc[VINTR] = lt->c_cc[LINUX_OLD_VINTR];
    168 	bts->c_cc[VQUIT] = lt->c_cc[LINUX_OLD_VQUIT];
    169 	bts->c_cc[VERASE] = lt->c_cc[LINUX_OLD_VERASE];
    170 	bts->c_cc[VKILL] = lt->c_cc[LINUX_OLD_VKILL];
    171 	bts->c_cc[VEOF] = lt->c_cc[LINUX_OLD_VEOF];
    172 	bts->c_cc[VTIME] = lt->c_cc[LINUX_OLD_VTIME];
    173 	bts->c_cc[VMIN] = lt->c_cc[LINUX_OLD_VMIN];
    174 }
    175 
    176 static void
    177 bsd_termios_to_linux_termio(bts, lt)
    178 	struct termios *bts;
    179 	struct linux_termio *lt;
    180 {
    181 	int i, mask;
    182 
    183 	lt->c_iflag = 0;
    184 	lt->c_iflag |= cvtto_linux_mask(bts->c_iflag, IGNBRK, LINUX_IGNBRK);
    185 	lt->c_iflag |= cvtto_linux_mask(bts->c_iflag, BRKINT, LINUX_BRKINT);
    186 	lt->c_iflag |= cvtto_linux_mask(bts->c_iflag, IGNPAR, LINUX_IGNPAR);
    187 	lt->c_iflag |= cvtto_linux_mask(bts->c_iflag, INPCK, LINUX_INPCK);
    188 	lt->c_iflag |= cvtto_linux_mask(bts->c_iflag, ISTRIP, LINUX_ISTRIP);
    189 	lt->c_iflag |= cvtto_linux_mask(bts->c_iflag, INLCR, LINUX_INLCR);
    190 	lt->c_iflag |= cvtto_linux_mask(bts->c_iflag, IGNCR, LINUX_IGNCR);
    191 	lt->c_iflag |= cvtto_linux_mask(bts->c_iflag, ICRNL, LINUX_ICRNL);
    192 	lt->c_iflag |= cvtto_linux_mask(bts->c_iflag, IXON, LINUX_IXON);
    193 	lt->c_iflag |= cvtto_linux_mask(bts->c_iflag, IXANY, LINUX_IXANY);
    194 	lt->c_iflag |= cvtto_linux_mask(bts->c_iflag, IXOFF, LINUX_IXOFF);
    195 	lt->c_iflag |= cvtto_linux_mask(bts->c_iflag, IMAXBEL, LINUX_IMAXBEL);
    196 
    197 	lt->c_oflag = 0;
    198 	lt->c_oflag |= cvtto_linux_mask(bts->c_oflag, OPOST, LINUX_OPOST);
    199 	lt->c_oflag |= cvtto_linux_mask(bts->c_oflag, ONLCR, LINUX_ONLCR);
    200 	lt->c_oflag |= cvtto_linux_mask(bts->c_oflag, OXTABS, LINUX_XTABS);
    201 
    202 	switch (bts->c_cflag & CSIZE) {
    203 	case CS5:
    204 		lt->c_cflag = LINUX_CS5;
    205 		break;
    206 	case CS6:
    207 		lt->c_cflag = LINUX_CS6;
    208 		break;
    209 	case CS7:
    210 		lt->c_cflag = LINUX_CS7;
    211 		break;
    212 	case CS8:
    213 		lt->c_cflag = LINUX_CS8;
    214 		break;
    215 	}
    216 	lt->c_cflag |= cvtto_linux_mask(bts->c_cflag, CSTOPB, LINUX_CSTOPB);
    217 	lt->c_cflag |= cvtto_linux_mask(bts->c_cflag, CREAD, LINUX_CREAD);
    218 	lt->c_cflag |= cvtto_linux_mask(bts->c_cflag, PARENB, LINUX_PARENB);
    219 	lt->c_cflag |= cvtto_linux_mask(bts->c_cflag, PARODD, LINUX_PARODD);
    220 	lt->c_cflag |= cvtto_linux_mask(bts->c_cflag, HUPCL, LINUX_HUPCL);
    221 	lt->c_cflag |= cvtto_linux_mask(bts->c_cflag, CLOCAL, LINUX_CLOCAL);
    222 	lt->c_cflag |= cvtto_linux_mask(bts->c_cflag, CRTSCTS, LINUX_CRTSCTS);
    223 
    224 	lt->c_lflag = 0;
    225 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, ISIG, LINUX_ISIG);
    226 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, ICANON, LINUX_ICANON);
    227 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHO, LINUX_ECHO);
    228 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHOE, LINUX_ECHOE);
    229 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHOK, LINUX_ECHOK);
    230 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHONL, LINUX_ECHONL);
    231 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, NOFLSH, LINUX_NOFLSH);
    232 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, TOSTOP, LINUX_TOSTOP);
    233 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHOCTL, LINUX_ECHOCTL);
    234 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHOPRT, LINUX_ECHOPRT);
    235 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHOKE, LINUX_ECHOKE);
    236 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, FLUSHO, LINUX_FLUSHO);
    237 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, PENDIN, LINUX_PENDIN);
    238 	lt->c_lflag |= cvtto_linux_mask(bts->c_lflag, IEXTEN, LINUX_IEXTEN);
    239 
    240 	mask = LINUX_B9600;	/* XXX default value should this be 0? */
    241 	for (i = 0; i < sizeof (linux_speeds) / sizeof (speed_t); i++) {
    242 		if (bts->c_ospeed == linux_speeds[i]) {
    243 			mask = linux_spmasks[i];
    244 			break;
    245 		}
    246 	}
    247 	lt->c_cflag |= mask;
    248 
    249 	lt->c_cc[LINUX_VINTR] = bts->c_cc[VINTR];
    250 	lt->c_cc[LINUX_VQUIT] = bts->c_cc[VQUIT];
    251 	lt->c_cc[LINUX_VERASE] = bts->c_cc[VERASE];
    252 	lt->c_cc[LINUX_VKILL] = bts->c_cc[VKILL];
    253 	lt->c_cc[LINUX_VEOF] = bts->c_cc[VEOF];
    254 	lt->c_cc[LINUX_VTIME] = bts->c_cc[VTIME];
    255 	lt->c_cc[LINUX_VMIN] = bts->c_cc[VMIN];
    256 	lt->c_cc[LINUX_VSWTC] = 0;
    257 
    258 	/* XXX should be fixed someday */
    259 	lt->c_line = 0;
    260 }
    261 
    262 static void
    263 linux_termios_to_bsd_termios(lts, bts)
    264 	struct linux_termios *lts;
    265 	struct termios *bts;
    266 {
    267 	int index;
    268 
    269 	bts->c_iflag = 0;
    270 	bts->c_iflag |= cvtto_bsd_mask(lts->c_iflag, LINUX_IGNBRK, IGNBRK);
    271 	bts->c_iflag |= cvtto_bsd_mask(lts->c_iflag, LINUX_BRKINT, BRKINT);
    272 	bts->c_iflag |= cvtto_bsd_mask(lts->c_iflag, LINUX_IGNPAR, IGNPAR);
    273 	bts->c_iflag |= cvtto_bsd_mask(lts->c_iflag, LINUX_INPCK, INPCK);
    274 	bts->c_iflag |= cvtto_bsd_mask(lts->c_iflag, LINUX_ISTRIP, ISTRIP);
    275 	bts->c_iflag |= cvtto_bsd_mask(lts->c_iflag, LINUX_INLCR, INLCR);
    276 	bts->c_iflag |= cvtto_bsd_mask(lts->c_iflag, LINUX_IGNCR, IGNCR);
    277 	bts->c_iflag |= cvtto_bsd_mask(lts->c_iflag, LINUX_ICRNL, ICRNL);
    278 	bts->c_iflag |= cvtto_bsd_mask(lts->c_iflag, LINUX_IXON, IXON);
    279 	bts->c_iflag |= cvtto_bsd_mask(lts->c_iflag, LINUX_IXANY, IXANY);
    280 	bts->c_iflag |= cvtto_bsd_mask(lts->c_iflag, LINUX_IXOFF, IXOFF);
    281 	bts->c_iflag |= cvtto_bsd_mask(lts->c_iflag, LINUX_IMAXBEL, IMAXBEL);
    282 
    283 	bts->c_oflag = 0;
    284 	bts->c_oflag |= cvtto_bsd_mask(lts->c_oflag, LINUX_OPOST, OPOST);
    285 	bts->c_oflag |= cvtto_bsd_mask(lts->c_oflag, LINUX_ONLCR, ONLCR);
    286 	bts->c_oflag |= cvtto_bsd_mask(lts->c_oflag, LINUX_XTABS, OXTABS);
    287 
    288 	bts->c_cflag = 0;
    289 	switch (lts->c_cflag & LINUX_CSIZE) {
    290 	case LINUX_CS5:
    291 		bts->c_cflag = CS5;
    292 		break;
    293 	case LINUX_CS6:
    294 		bts->c_cflag = CS6;
    295 		break;
    296 	case LINUX_CS7:
    297 		bts->c_cflag = CS7;
    298 		break;
    299 	case LINUX_CS8:
    300 		bts->c_cflag = CS8;
    301 		break;
    302 	}
    303 	bts->c_cflag |= cvtto_bsd_mask(lts->c_cflag, LINUX_CSTOPB, CSTOPB);
    304 	bts->c_cflag |= cvtto_bsd_mask(lts->c_cflag, LINUX_CREAD, CREAD);
    305 	bts->c_cflag |= cvtto_bsd_mask(lts->c_cflag, LINUX_PARENB, PARENB);
    306 	bts->c_cflag |= cvtto_bsd_mask(lts->c_cflag, LINUX_PARODD, PARODD);
    307 	bts->c_cflag |= cvtto_bsd_mask(lts->c_cflag, LINUX_HUPCL, HUPCL);
    308 	bts->c_cflag |= cvtto_bsd_mask(lts->c_cflag, LINUX_CLOCAL, CLOCAL);
    309 	bts->c_cflag |= cvtto_bsd_mask(lts->c_cflag, LINUX_CRTSCTS, CRTSCTS);
    310 
    311 	bts->c_lflag = 0;
    312 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_ISIG, ISIG);
    313 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_ICANON, ICANON);
    314 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_ECHO, ECHO);
    315 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_ECHOE, ECHOE);
    316 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_ECHOK, ECHOK);
    317 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_ECHONL, ECHONL);
    318 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_NOFLSH, NOFLSH);
    319 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_TOSTOP, TOSTOP);
    320 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_ECHOCTL, ECHOCTL);
    321 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_ECHOPRT, ECHOPRT);
    322 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_ECHOKE, ECHOKE);
    323 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_FLUSHO, FLUSHO);
    324 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_PENDIN, PENDIN);
    325 	bts->c_lflag |= cvtto_bsd_mask(lts->c_lflag, LINUX_IEXTEN, IEXTEN);
    326 
    327 	index = lts->c_cflag & LINUX_CBAUD;
    328 	if (index & LINUX_CBAUDEX)
    329 		index = (index & ~LINUX_CBAUDEX) + LINUX_NSPEEDS - 1;
    330 	bts->c_ispeed = bts->c_ospeed = linux_speeds[index];
    331 	/*
    332 	 * A null c_ospeed causes NetBSD to hangup the terminal.
    333 	 * Linux does not do this, and it sets c_ospeed to zero
    334 	 * sometimes. If it is null, we store -1 in the kernel
    335 	 */
    336 	if (bts->c_ospeed == 0)
    337 		bts->c_ospeed = -1;
    338 
    339 	bts->c_cc[VINTR] = lts->c_cc[LINUX_VINTR];
    340 	bts->c_cc[VQUIT] = lts->c_cc[LINUX_VQUIT];
    341 	bts->c_cc[VERASE] = lts->c_cc[LINUX_VERASE];
    342 	bts->c_cc[VKILL] = lts->c_cc[LINUX_VKILL];
    343 	bts->c_cc[VEOF] = lts->c_cc[LINUX_VEOF];
    344 	bts->c_cc[VTIME] = lts->c_cc[LINUX_VTIME];
    345 	bts->c_cc[VMIN] = lts->c_cc[LINUX_VMIN];
    346 	bts->c_cc[VEOL] = lts->c_cc[LINUX_VEOL];
    347 	bts->c_cc[VEOL2] = lts->c_cc[LINUX_VEOL2];
    348 	bts->c_cc[VWERASE] = lts->c_cc[LINUX_VWERASE];
    349 	bts->c_cc[VSUSP] = lts->c_cc[LINUX_VSUSP];
    350 	bts->c_cc[VSTART] = lts->c_cc[LINUX_VSTART];
    351 	bts->c_cc[VSTOP] = lts->c_cc[LINUX_VSTOP];
    352 	bts->c_cc[VLNEXT] = lts->c_cc[LINUX_VLNEXT];
    353 	bts->c_cc[VDISCARD] = lts->c_cc[LINUX_VDISCARD];
    354 	bts->c_cc[VREPRINT] = lts->c_cc[LINUX_VREPRINT];
    355 }
    356 
    357 static void
    358 bsd_termios_to_linux_termios(bts, lts)
    359 	struct termios *bts;
    360 	struct linux_termios *lts;
    361 {
    362 	int i, mask;
    363 
    364 	lts->c_iflag = 0;
    365 	lts->c_iflag |= cvtto_linux_mask(bts->c_iflag, IGNBRK, LINUX_IGNBRK);
    366 	lts->c_iflag |= cvtto_linux_mask(bts->c_iflag, BRKINT, LINUX_BRKINT);
    367 	lts->c_iflag |= cvtto_linux_mask(bts->c_iflag, IGNPAR, LINUX_IGNPAR);
    368 	lts->c_iflag |= cvtto_linux_mask(bts->c_iflag, INPCK, LINUX_INPCK);
    369 	lts->c_iflag |= cvtto_linux_mask(bts->c_iflag, ISTRIP, LINUX_ISTRIP);
    370 	lts->c_iflag |= cvtto_linux_mask(bts->c_iflag, INLCR, LINUX_INLCR);
    371 	lts->c_iflag |= cvtto_linux_mask(bts->c_iflag, IGNCR, LINUX_IGNCR);
    372 	lts->c_iflag |= cvtto_linux_mask(bts->c_iflag, ICRNL, LINUX_ICRNL);
    373 	lts->c_iflag |= cvtto_linux_mask(bts->c_iflag, IXON, LINUX_IXON);
    374 	lts->c_iflag |= cvtto_linux_mask(bts->c_iflag, IXANY, LINUX_IXANY);
    375 	lts->c_iflag |= cvtto_linux_mask(bts->c_iflag, IXOFF, LINUX_IXOFF);
    376 	lts->c_iflag |= cvtto_linux_mask(bts->c_iflag, IMAXBEL, LINUX_IMAXBEL);
    377 
    378 	lts->c_oflag = 0;
    379 	lts->c_oflag |= cvtto_linux_mask(bts->c_oflag, OPOST, LINUX_OPOST);
    380 	lts->c_oflag |= cvtto_linux_mask(bts->c_oflag, ONLCR, LINUX_ONLCR);
    381 	lts->c_oflag |= cvtto_linux_mask(bts->c_oflag, OXTABS, LINUX_XTABS);
    382 
    383 	switch (bts->c_cflag & CSIZE) {
    384 	case CS5:
    385 		lts->c_cflag = LINUX_CS5;
    386 		break;
    387 	case CS6:
    388 		lts->c_cflag = LINUX_CS6;
    389 		break;
    390 	case CS7:
    391 		lts->c_cflag = LINUX_CS7;
    392 		break;
    393 	case CS8:
    394 		lts->c_cflag = LINUX_CS8;
    395 		break;
    396 	}
    397 	lts->c_cflag |= cvtto_linux_mask(bts->c_cflag, CS5, LINUX_CS5);
    398 	lts->c_cflag |= cvtto_linux_mask(bts->c_cflag, CS6, LINUX_CS6);
    399 	lts->c_cflag |= cvtto_linux_mask(bts->c_cflag, CS7, LINUX_CS7);
    400 	lts->c_cflag |= cvtto_linux_mask(bts->c_cflag, CS8, LINUX_CS8);
    401 	lts->c_cflag |= cvtto_linux_mask(bts->c_cflag, CSTOPB, LINUX_CSTOPB);
    402 	lts->c_cflag |= cvtto_linux_mask(bts->c_cflag, CREAD, LINUX_CREAD);
    403 	lts->c_cflag |= cvtto_linux_mask(bts->c_cflag, PARENB, LINUX_PARENB);
    404 	lts->c_cflag |= cvtto_linux_mask(bts->c_cflag, PARODD, LINUX_PARODD);
    405 	lts->c_cflag |= cvtto_linux_mask(bts->c_cflag, HUPCL, LINUX_HUPCL);
    406 	lts->c_cflag |= cvtto_linux_mask(bts->c_cflag, CLOCAL, LINUX_CLOCAL);
    407 	lts->c_cflag |= cvtto_linux_mask(bts->c_cflag, CRTSCTS, LINUX_CRTSCTS);
    408 
    409 	lts->c_lflag = 0;
    410 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, ISIG, LINUX_ISIG);
    411 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, ICANON, LINUX_ICANON);
    412 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHO, LINUX_ECHO);
    413 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHOE, LINUX_ECHOE);
    414 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHOK, LINUX_ECHOK);
    415 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHONL, LINUX_ECHONL);
    416 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, NOFLSH, LINUX_NOFLSH);
    417 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, TOSTOP, LINUX_TOSTOP);
    418 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHOCTL, LINUX_ECHOCTL);
    419 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHOPRT, LINUX_ECHOPRT);
    420 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, ECHOKE, LINUX_ECHOKE);
    421 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, FLUSHO, LINUX_FLUSHO);
    422 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, PENDIN, LINUX_PENDIN);
    423 	lts->c_lflag |= cvtto_linux_mask(bts->c_lflag, IEXTEN, LINUX_IEXTEN);
    424 
    425 	mask = LINUX_B9600;	/* XXX default value */
    426 	for (i = 0; i < sizeof (linux_speeds) / sizeof (speed_t); i++) {
    427 		if (bts->c_ospeed == linux_speeds[i]) {
    428 			mask = linux_spmasks[i];
    429 			break;
    430 		}
    431 	}
    432 	/*
    433 	 * A null c_ospeed causes NetBSD to hangup the terminal.
    434 	 * Linux does not do this, and it sets c_ospeed to zero
    435 	 * sometimes. If it is null, we store -1 in the kernel
    436 	 */
    437 	if (bts->c_ospeed == -1)
    438 		bts->c_ospeed = 0;
    439 	lts->c_cflag |= mask;
    440 
    441 	lts->c_cc[LINUX_VINTR] = bts->c_cc[VINTR];
    442 	lts->c_cc[LINUX_VQUIT] = bts->c_cc[VQUIT];
    443 	lts->c_cc[LINUX_VERASE] = bts->c_cc[VERASE];
    444 	lts->c_cc[LINUX_VKILL] = bts->c_cc[VKILL];
    445 	lts->c_cc[LINUX_VEOF] = bts->c_cc[VEOF];
    446 	lts->c_cc[LINUX_VTIME] = bts->c_cc[VTIME];
    447 	lts->c_cc[LINUX_VMIN] = bts->c_cc[VMIN];
    448 	lts->c_cc[LINUX_VEOL] = bts->c_cc[VEOL];
    449 	lts->c_cc[LINUX_VEOL2] = bts->c_cc[VEOL2];
    450 	lts->c_cc[LINUX_VWERASE] = bts->c_cc[VWERASE];
    451 	lts->c_cc[LINUX_VSUSP] = bts->c_cc[VSUSP];
    452 	lts->c_cc[LINUX_VSTART] = bts->c_cc[VSTART];
    453 	lts->c_cc[LINUX_VSTOP] = bts->c_cc[VSTOP];
    454 	lts->c_cc[LINUX_VLNEXT] = bts->c_cc[VLNEXT];
    455 	lts->c_cc[LINUX_VDISCARD] = bts->c_cc[VDISCARD];
    456 	lts->c_cc[LINUX_VREPRINT] = bts->c_cc[VREPRINT];
    457 	lts->c_cc[LINUX_VSWTC] = 0;
    458 
    459 	/* XXX should be fixed someday */
    460 	lts->c_line = 0;
    461 }
    462 
    463 int
    464 linux_ioctl_termios(p, uap, retval)
    465 	struct proc *p;
    466 	struct linux_sys_ioctl_args /* {
    467 		syscallarg(int) fd;
    468 		syscallarg(u_long) com;
    469 		syscallarg(caddr_t) data;
    470 	} */ *uap;
    471 	register_t *retval;
    472 {
    473 	struct file *fp;
    474 	struct filedesc *fdp;
    475 	u_long com;
    476 	struct linux_termio tmplt;
    477 	struct linux_termios tmplts;
    478 	struct termios tmpbts;
    479 	int idat;
    480 	struct sys_ioctl_args ia;
    481 	int error;
    482 	char tioclinux;
    483 	int (*bsdioctl) __P((struct file *, u_long, caddr_t, struct proc *));
    484 
    485 	fdp = p->p_fd;
    486 	if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
    487 		return (EBADF);
    488 
    489 	if ((fp->f_flag & (FREAD | FWRITE)) == 0)
    490 		return (EBADF);
    491 
    492 	bsdioctl = fp->f_ops->fo_ioctl;
    493 	com = SCARG(uap, com);
    494 	retval[0] = 0;
    495 
    496 	switch (com) {
    497 	case LINUX_TCGETS:
    498 		error = (*bsdioctl)(fp, TIOCGETA, (caddr_t)&tmpbts, p);
    499 		if (error)
    500 			return error;
    501 		bsd_termios_to_linux_termios(&tmpbts, &tmplts);
    502 		error = copyout(&tmplts, SCARG(uap, data), sizeof tmplts);
    503 		if (error)
    504 			return error;
    505 		return 0;
    506 	case LINUX_TCSETS:
    507 	case LINUX_TCSETSW:
    508 	case LINUX_TCSETSF:
    509 		/*
    510 		 * First fill in all fields, so that we keep the current
    511 		 * values for fields that Linux doesn't know about.
    512 		 */
    513 		error = (*bsdioctl)(fp, TIOCGETA, (caddr_t)&tmpbts, p);
    514 		if (error)
    515 			return error;
    516 		error = copyin(SCARG(uap, data), &tmplts, sizeof tmplts);
    517 		if (error)
    518 			return error;
    519 		linux_termios_to_bsd_termios(&tmplts, &tmpbts);
    520 		switch (com) {
    521 		case LINUX_TCSETS:
    522 			com = TIOCSETA;
    523 			break;
    524 		case LINUX_TCSETSW:
    525 			com = TIOCSETAW;
    526 			break;
    527 		case LINUX_TCSETSF:
    528 			com = TIOCSETAF;
    529 			break;
    530 		}
    531 		error = (*bsdioctl)(fp, com, (caddr_t)&tmpbts, p);
    532 		if (error)
    533 			return error;
    534 		return 0;
    535 	case LINUX_TCGETA:
    536 		error = (*bsdioctl)(fp, TIOCGETA, (caddr_t)&tmpbts, p);
    537 		if (error)
    538 			return error;
    539 		bsd_termios_to_linux_termio(&tmpbts, &tmplt);
    540 		error = copyout(&tmplt, SCARG(uap, data), sizeof tmplt);
    541 		if (error)
    542 			return error;
    543 		return 0;
    544 	case LINUX_TCSETA:
    545 	case LINUX_TCSETAW:
    546 	case LINUX_TCSETAF:
    547 		/*
    548 		 * First fill in all fields, so that we keep the current
    549 		 * values for fields that Linux doesn't know about.
    550 		 */
    551 		error = (*bsdioctl)(fp, TIOCGETA, (caddr_t)&tmpbts, p);
    552 		if (error)
    553 			return error;
    554 		error = copyin(SCARG(uap, data), &tmplt, sizeof tmplt);
    555 		if (error)
    556 			return error;
    557 		linux_termio_to_bsd_termios(&tmplt, &tmpbts);
    558 		switch (com) {
    559 		case LINUX_TCSETA:
    560 			com = TIOCSETA;
    561 			break;
    562 		case LINUX_TCSETAW:
    563 			com = TIOCSETAW;
    564 			break;
    565 		case LINUX_TCSETAF:
    566 			com = TIOCSETAF;
    567 			break;
    568 		}
    569 		error = (*bsdioctl)(fp, com, (caddr_t)&tmpbts, p);
    570 		if (error)
    571 			return error;
    572 		return 0;
    573 	case LINUX_TCFLSH:
    574 		switch((u_long)SCARG(uap, data)) {
    575 		case 0:
    576 			idat = FREAD;
    577 			break;
    578 		case 1:
    579 			idat = FWRITE;
    580 			break;
    581 		case 2:
    582 			idat = 0;
    583 			break;
    584 		default:
    585 			return EINVAL;
    586 		}
    587 		return (*bsdioctl)(fp, TIOCFLUSH, (caddr_t)&idat, p);
    588 	case LINUX_TIOCGETD:
    589 		error = (*bsdioctl)(fp, TIOCGETD, (caddr_t)&idat, p);
    590 		if (error)
    591 			return error;
    592 		switch (idat) {
    593 		case TTYDISC:
    594 			idat = LINUX_N_TTY;
    595 			break;
    596 		case SLIPDISC:
    597 			idat = LINUX_N_SLIP;
    598 			break;
    599 		case PPPDISC:
    600 			idat = LINUX_N_PPP;
    601 			break;
    602 		case STRIPDISC:
    603 			idat = LINUX_N_STRIP;
    604 			break;
    605 		/*
    606 		 * Linux does not have the tablet line discipline.
    607 		 */
    608 		case TABLDISC:
    609 		default:
    610 			idat = -1;	/* XXX What should this be? */
    611 			break;
    612 		}
    613 		error = copyout(&idat, SCARG(uap, data), sizeof idat);
    614 		if (error)
    615 			return error;
    616 		return 0;
    617 	case LINUX_TIOCSETD:
    618 		error = copyin(SCARG(uap, data), &idat, sizeof idat);
    619 		if (error)
    620 			return error;
    621 		switch (idat) {
    622 		case LINUX_N_TTY:
    623 			idat = TTYDISC;
    624 			break;
    625 		case LINUX_N_SLIP:
    626 			idat = SLIPDISC;
    627 			break;
    628 		case LINUX_N_PPP:
    629 			idat = PPPDISC;
    630 			break;
    631 		case LINUX_N_STRIP:
    632 			idat = STRIPDISC;
    633 			break;
    634 		/*
    635 		 * We can't handle the mouse line discipline Linux has.
    636 		 */
    637 		case LINUX_N_MOUSE:
    638 		case LINUX_N_AX25:
    639 		case LINUX_N_X25:
    640 		case LINUX_N_6PACK:
    641 		default:
    642 			return EINVAL;
    643 		}
    644 		error = (*bsdioctl)(fp, TIOCSETD, (caddr_t)&idat, p);
    645 		if (error)
    646 			return error;
    647 		return 0;
    648 	case LINUX_TIOCLINUX:
    649 		error = copyin(SCARG(uap, data), &tioclinux, sizeof tioclinux);
    650 		if (error != 0)
    651 			return error;
    652 		switch (tioclinux) {
    653 		case LINUX_TIOCLINUX_KERNMSG:
    654 			/*
    655 			 * XXX needed to not fail for some things. Could
    656 			 * try to use TIOCCONS, but the char argument
    657 			 * specifies the VT #, not an fd.
    658 			 */
    659 			return 0;
    660 		case LINUX_TIOCLINUX_COPY:
    661 		case LINUX_TIOCLINUX_PASTE:
    662 		case LINUX_TIOCLINUX_UNBLANK:
    663 		case LINUX_TIOCLINUX_LOADLUT:
    664 		case LINUX_TIOCLINUX_READSHIFT:
    665 		case LINUX_TIOCLINUX_READMOUSE:
    666 		case LINUX_TIOCLINUX_VESABLANK:
    667 		case LINUX_TIOCLINUX_CURCONS:	/* could use VT_GETACTIVE */
    668 			return EINVAL;
    669 		}
    670 		break;
    671 	case LINUX_TIOCGWINSZ:
    672 		SCARG(&ia, com) = TIOCGWINSZ;
    673 		break;
    674 	case LINUX_TIOCSWINSZ:
    675 		SCARG(&ia, com) = TIOCSWINSZ;
    676 		break;
    677 	case LINUX_TIOCGPGRP:
    678 		SCARG(&ia, com) = TIOCGPGRP;
    679 		break;
    680 	case LINUX_TIOCSPGRP:
    681 		SCARG(&ia, com) = TIOCSPGRP;
    682 		break;
    683 	case LINUX_FIONREAD:
    684 		SCARG(&ia, com) = FIONREAD;
    685 		break;
    686 	case LINUX_FIONBIO:
    687 		SCARG(&ia, com) = FIONBIO;
    688 		break;
    689 	case LINUX_FIOASYNC:
    690 		SCARG(&ia, com) = FIOASYNC;
    691 		break;
    692 	case LINUX_TIOCEXCL:
    693 		SCARG(&ia, com) = TIOCEXCL;
    694 		break;
    695 	case LINUX_TIOCNXCL:
    696 		SCARG(&ia, com) = TIOCNXCL;
    697 		break;
    698 	case LINUX_TIOCCONS:
    699 		SCARG(&ia, com) = TIOCCONS;
    700 		break;
    701 	case LINUX_TIOCNOTTY:
    702 		SCARG(&ia, com) = TIOCNOTTY;
    703 		break;
    704 	case LINUX_TCSBRK:
    705 		SCARG(&ia, com) = SCARG(uap, data) ? TIOCDRAIN : TIOCSBRK;
    706 		break;
    707 	case LINUX_TIOCMGET:
    708 		SCARG(&ia, com) = TIOCMGET;
    709 		break;
    710 	case LINUX_TIOCMSET:
    711 		SCARG(&ia, com) = TIOCMSET;
    712 		break;
    713 	default:
    714 		return EINVAL;
    715 	}
    716 
    717 	SCARG(&ia, fd) = SCARG(uap, fd);
    718 	SCARG(&ia, data) = SCARG(uap, data);
    719 	/* XXX NJWLWP */
    720 	return sys_ioctl(curproc, &ia, retval);
    721 }
    722