1 | /* $NetBSD: linux32_termios.c,v 1.14 2008/11/19 18:36:04 ad Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 1995-2006, 2008 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, Eric Haszlakiewicz, and Emmanuel Dreyfus. |
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 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | #include <sys/cdefs.h> |
33 | __KERNEL_RCSID(0, "$NetBSD: linux32_termios.c,v 1.14 2008/11/19 18:36:04 ad Exp $" ); |
34 | |
35 | #ifdef _KERNEL_OPT |
36 | #include "opt_compat_linux32.h" |
37 | #endif |
38 | |
39 | #include <sys/types.h> |
40 | #include <sys/param.h> |
41 | #include <sys/time.h> |
42 | #include <sys/ucred.h> |
43 | #include <sys/proc.h> |
44 | #include <sys/lwp.h> |
45 | #include <sys/file.h> |
46 | #include <sys/filedesc.h> |
47 | #include <sys/fcntl.h> |
48 | #include <sys/termios.h> |
49 | #include <sys/kernel.h> |
50 | |
51 | #include <compat/netbsd32/netbsd32.h> |
52 | #include <compat/netbsd32/netbsd32_syscallargs.h> |
53 | |
54 | #include <compat/linux32/common/linux32_types.h> |
55 | #include <compat/linux32/common/linux32_signal.h> |
56 | #include <compat/linux32/common/linux32_ioctl.h> |
57 | #include <compat/linux32/common/linux32_machdep.h> |
58 | #include <compat/linux32/common/linux32_termios.h> |
59 | #include <compat/linux32/linux32_syscallargs.h> |
60 | |
61 | #include <compat/linux/common/linux_types.h> |
62 | #include <compat/linux/common/linux_signal.h> |
63 | #include <compat/linux/common/linux_util.h> |
64 | #include <compat/linux/common/linux_termios.h> |
65 | #include <compat/linux/common/linux_ipc.h> |
66 | #include <compat/linux/common/linux_sem.h> |
67 | #include <compat/linux/linux_syscallargs.h> |
68 | |
69 | int |
70 | linux32_ioctl_termios(struct lwp *l, const struct linux32_sys_ioctl_args *uap, register_t *retval) |
71 | { |
72 | /* { |
73 | syscallarg(int) fd; |
74 | syscallarg(netbsd32_u_long) com; |
75 | syscallarg(netbsd32_charp) data; |
76 | } */ |
77 | file_t *fp; |
78 | u_long com; |
79 | struct linux32_termio tmplt; |
80 | struct linux32_termios tmplts; |
81 | struct termios tmpbts; |
82 | int idat; |
83 | struct netbsd32_ioctl_args ia; |
84 | int error; |
85 | char tioclinux; |
86 | int (*bsdioctl)(file_t *, u_long, void *); |
87 | |
88 | if ((fp = fd_getfile(SCARG(uap, fd))) == NULL) |
89 | return (EBADF); |
90 | |
91 | if ((fp->f_flag & (FREAD | FWRITE)) == 0) { |
92 | fd_putfile(SCARG(uap, fd)); |
93 | error = EBADF; |
94 | goto out; |
95 | } |
96 | |
97 | bsdioctl = fp->f_ops->fo_ioctl; |
98 | com = SCARG(uap, com); |
99 | retval[0] = 0; |
100 | |
101 | switch (com) { |
102 | case LINUX32_TCGETS: |
103 | error = (*bsdioctl)(fp, TIOCGETA, &tmpbts); |
104 | if (error) |
105 | goto out; |
106 | bsd_termios_to_linux32_termios(&tmpbts, &tmplts); |
107 | error = copyout(&tmplts, SCARG_P32(uap, data), sizeof tmplts); |
108 | goto out; |
109 | case LINUX32_TCSETS: |
110 | case LINUX32_TCSETSW: |
111 | case LINUX32_TCSETSF: |
112 | /* |
113 | * First fill in all fields, so that we keep the current |
114 | * values for fields that Linux doesn't know about. |
115 | */ |
116 | error = (*bsdioctl)(fp, TIOCGETA, &tmpbts); |
117 | if (error) |
118 | goto out; |
119 | if ((error = copyin(SCARG_P32(uap, data), |
120 | &tmplts, sizeof tmplts)) != 0) |
121 | goto out; |
122 | linux32_termios_to_bsd_termios(&tmplts, &tmpbts); |
123 | switch (com) { |
124 | case LINUX32_TCSETS: |
125 | com = TIOCSETA; |
126 | break; |
127 | case LINUX32_TCSETSW: |
128 | com = TIOCSETAW; |
129 | break; |
130 | case LINUX32_TCSETSF: |
131 | com = TIOCSETAF; |
132 | break; |
133 | } |
134 | error = (*bsdioctl)(fp, com, &tmpbts); |
135 | goto out; |
136 | case LINUX32_TCGETA: |
137 | error = (*bsdioctl)(fp, TIOCGETA, &tmpbts); |
138 | if (error) |
139 | goto out; |
140 | bsd_termios_to_linux32_termio(&tmpbts, &tmplt); |
141 | error = copyout(&tmplt, SCARG_P32(uap, data), sizeof tmplt); |
142 | goto out; |
143 | case LINUX32_TCSETA: |
144 | case LINUX32_TCSETAW: |
145 | case LINUX32_TCSETAF: |
146 | /* |
147 | * First fill in all fields, so that we keep the current |
148 | * values for fields that Linux doesn't know about. |
149 | */ |
150 | error = (*bsdioctl)(fp, TIOCGETA, &tmpbts); |
151 | if (error) |
152 | goto out; |
153 | if ((error = copyin(SCARG_P32(uap, data), |
154 | &tmplt, sizeof tmplt)) != 0) |
155 | goto out; |
156 | linux32_termio_to_bsd_termios(&tmplt, &tmpbts); |
157 | switch (com) { |
158 | case LINUX32_TCSETA: |
159 | com = TIOCSETA; |
160 | break; |
161 | case LINUX32_TCSETAW: |
162 | com = TIOCSETAW; |
163 | break; |
164 | case LINUX32_TCSETAF: |
165 | com = TIOCSETAF; |
166 | break; |
167 | } |
168 | error = (*bsdioctl)(fp, com, &tmpbts); |
169 | goto out; |
170 | case LINUX32_TCFLSH: |
171 | switch((u_long)SCARG_P32(uap, data)) { |
172 | case 0: |
173 | idat = FREAD; |
174 | break; |
175 | case 1: |
176 | idat = FWRITE; |
177 | break; |
178 | case 2: |
179 | idat = 0; |
180 | break; |
181 | default: |
182 | error = EINVAL; |
183 | goto out; |
184 | } |
185 | error = (*bsdioctl)(fp, TIOCFLUSH, &idat); |
186 | goto out; |
187 | case LINUX32_TIOCGETD: |
188 | error = (*bsdioctl)(fp, TIOCGETD, &idat); |
189 | if (error) |
190 | goto out; |
191 | switch (idat) { |
192 | case TTYDISC: |
193 | idat = LINUX_N_TTY; |
194 | break; |
195 | case SLIPDISC: |
196 | idat = LINUX_N_SLIP; |
197 | break; |
198 | case PPPDISC: |
199 | idat = LINUX_N_PPP; |
200 | break; |
201 | case STRIPDISC: |
202 | idat = LINUX_N_STRIP; |
203 | break; |
204 | /* |
205 | * Linux does not have the tablet line discipline. |
206 | */ |
207 | case TABLDISC: |
208 | default: |
209 | idat = -1; /* XXX What should this be? */ |
210 | break; |
211 | } |
212 | error = copyout(&idat, SCARG_P32(uap, data), sizeof idat); |
213 | goto out; |
214 | case LINUX32_TIOCSETD: |
215 | if ((error = copyin(SCARG_P32(uap, data), |
216 | &idat, sizeof idat)) != 0) |
217 | goto out; |
218 | switch (idat) { |
219 | case LINUX_N_TTY: |
220 | idat = TTYDISC; |
221 | break; |
222 | case LINUX_N_SLIP: |
223 | idat = SLIPDISC; |
224 | break; |
225 | case LINUX_N_PPP: |
226 | idat = PPPDISC; |
227 | break; |
228 | case LINUX_N_STRIP: |
229 | idat = STRIPDISC; |
230 | break; |
231 | /* |
232 | * We can't handle the mouse line discipline Linux has. |
233 | */ |
234 | case LINUX_N_MOUSE: |
235 | case LINUX_N_AX25: |
236 | case LINUX_N_X25: |
237 | case LINUX_N_6PACK: |
238 | default: |
239 | error = EINVAL; |
240 | goto out; |
241 | } |
242 | error = (*bsdioctl)(fp, TIOCSETD, &idat); |
243 | goto out; |
244 | case LINUX32_TIOCLINUX: |
245 | if ((error = copyin(SCARG_P32(uap, data), |
246 | &tioclinux, sizeof tioclinux)) != 0) |
247 | goto out; |
248 | switch (tioclinux) { |
249 | case LINUX_TIOCLINUX_KERNMSG: |
250 | /* |
251 | * XXX needed to not fail for some things. Could |
252 | * try to use TIOCCONS, but the char argument |
253 | * specifies the VT #, not an fd. |
254 | */ |
255 | error = 0; |
256 | goto out; |
257 | case LINUX_TIOCLINUX_COPY: |
258 | case LINUX_TIOCLINUX_PASTE: |
259 | case LINUX_TIOCLINUX_UNBLANK: |
260 | case LINUX_TIOCLINUX_LOADLUT: |
261 | case LINUX_TIOCLINUX_READSHIFT: |
262 | case LINUX_TIOCLINUX_READMOUSE: |
263 | case LINUX_TIOCLINUX_VESABLANK: |
264 | case LINUX_TIOCLINUX_CURCONS: /* could use VT_GETACTIVE */ |
265 | error = EINVAL; |
266 | goto out; |
267 | } |
268 | break; |
269 | case LINUX32_TIOCGWINSZ: |
270 | SCARG(&ia, com) = TIOCGWINSZ; |
271 | break; |
272 | case LINUX32_TIOCSWINSZ: |
273 | SCARG(&ia, com) = TIOCSWINSZ; |
274 | break; |
275 | case LINUX32_TIOCGPGRP: |
276 | SCARG(&ia, com) = TIOCGPGRP; |
277 | break; |
278 | case LINUX32_TIOCSPGRP: |
279 | SCARG(&ia, com) = TIOCSPGRP; |
280 | break; |
281 | case LINUX32_FIONREAD: |
282 | SCARG(&ia, com) = FIONREAD; |
283 | break; |
284 | case LINUX32_FIONBIO: |
285 | SCARG(&ia, com) = FIONBIO; |
286 | break; |
287 | case LINUX32_FIOASYNC: |
288 | SCARG(&ia, com) = FIOASYNC; |
289 | break; |
290 | case LINUX32_TIOCEXCL: |
291 | SCARG(&ia, com) = TIOCEXCL; |
292 | break; |
293 | case LINUX32_TIOCNXCL: |
294 | SCARG(&ia, com) = TIOCNXCL; |
295 | break; |
296 | case LINUX32_TIOCCONS: |
297 | SCARG(&ia, com) = TIOCCONS; |
298 | break; |
299 | case LINUX32_TIOCNOTTY: |
300 | SCARG(&ia, com) = TIOCNOTTY; |
301 | break; |
302 | case LINUX32_TCSBRK: |
303 | idat = (u_long)SCARG_P32(uap, data); |
304 | if (idat != 0) |
305 | SCARG(&ia, com) = TIOCDRAIN; |
306 | else { |
307 | if ((error = (*bsdioctl)(fp, TIOCSBRK, NULL)) != 0) |
308 | goto out; |
309 | error = tsleep(&idat, PZERO | PCATCH, "linux_tcsbrk" , hz / 4); |
310 | if (error == EINTR || error == ERESTART) { |
311 | (void)(*bsdioctl)(fp, TIOCCBRK, NULL); |
312 | error = EINTR; |
313 | } else |
314 | error = (*bsdioctl)(fp, TIOCCBRK, NULL); |
315 | goto out; |
316 | } |
317 | break; |
318 | case LINUX32_TIOCMGET: |
319 | SCARG(&ia, com) = TIOCMGET; |
320 | break; |
321 | case LINUX32_TIOCMSET: |
322 | SCARG(&ia, com) = TIOCMSET; |
323 | break; |
324 | case LINUX32_TIOCMBIC: |
325 | SCARG(&ia, com) = TIOCMBIC; |
326 | break; |
327 | case LINUX32_TIOCMBIS: |
328 | SCARG(&ia, com) = TIOCMBIS; |
329 | break; |
330 | #ifdef LINUX32_TIOCGPTN |
331 | case LINUX32_TIOCGPTN: |
332 | #ifndef NO_DEV_PTM |
333 | { |
334 | struct ptmget ptm; |
335 | |
336 | error = (*bsdioctl)(fp, TIOCPTSNAME, &ptm); |
337 | if (error != 0) |
338 | goto out; |
339 | |
340 | error = copyout(&ptm.sfd, SCARG_P32(uap, data), |
341 | sizeof(ptm.sfd)); |
342 | goto out; |
343 | } |
344 | #endif /* NO_DEV_PTM */ |
345 | #endif /* LINUX32_TIOCGPTN */ |
346 | default: |
347 | error = EINVAL; |
348 | goto out; |
349 | } |
350 | |
351 | SCARG(&ia, fd) = SCARG(uap, fd); |
352 | SCARG(&ia, data) = SCARG(uap, data); |
353 | error = netbsd32_ioctl(curlwp, &ia, retval); |
354 | out: |
355 | fd_putfile(SCARG(uap, fd)); |
356 | return error; |
357 | } |
358 | |