Commit | Line | Data |
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a09e091a JB |
1 | /* |
2 | * Copyright 1990,91 by Thomas Roell, Dinkelscherben, Germany | |
3 | * Copyright 1993 by David Wexelblat <dwex@goblin.org> | |
4 | * Copyright 1999 by David Holland <davidh@iquest.net> | |
5 | * | |
6 | * Permission to use, copy, modify, distribute, and sell this software and its | |
7 | * documentation for any purpose is hereby granted without fee, provided that | |
8 | * the above copyright notice appear in all copies and that both that copyright | |
9 | * notice and this permission notice appear in supporting documentation, and | |
10 | * that the names of the copyright holders not be used in advertising or | |
11 | * publicity pertaining to distribution of the software without specific, | |
12 | * written prior permission. The copyright holders make no representations | |
13 | * about the suitability of this software for any purpose. It is provided "as | |
14 | * is" without express or implied warranty. | |
15 | * | |
16 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, | |
17 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, AND IN NO | |
18 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR | |
19 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, | |
20 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER | |
21 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE | |
22 | * OF THIS SOFTWARE. | |
23 | */ | |
24 | ||
25 | #ifdef HAVE_XORG_CONFIG_H | |
26 | #include <xorg-config.h> | |
27 | #endif | |
28 | ||
29 | #include "xf86.h" | |
30 | #include "xf86Priv.h" | |
31 | #include "xf86_OSlib.h" | |
32 | #ifdef HAVE_SYS_KD_H | |
33 | #include <sys/kd.h> | |
34 | #endif | |
35 | ||
36 | /* | |
37 | * Applications see VT number as consecutive integers starting from 1. | |
38 | * VT number VT device | |
39 | * ------------------------------------------------------- | |
40 | * 1 : /dev/vt/0 (Alt + Ctrl + F1) | |
41 | * 2 : /dev/vt/2 (Alt + Ctrl + F2) | |
42 | * 3 : /dev/vt/3 (Alt + Ctrl + F3) | |
43 | * ... ... | |
44 | */ | |
45 | #define CONSOLE_VTNO 1 | |
46 | #define SOL_CONSOLE_DEV "/dev/console" | |
47 | ||
48 | static Bool KeepTty = FALSE; | |
49 | static Bool Protect0 = FALSE; | |
50 | static Bool UseConsole = FALSE; | |
51 | ||
52 | #ifdef HAS_USL_VTS | |
53 | static int VTnum = -1; | |
54 | static int xf86StartVT = -1; | |
55 | static int vtEnabled = 0; | |
56 | extern void xf86VTAcquire(int); | |
57 | extern void xf86VTRelease(int); | |
58 | #endif | |
59 | ||
60 | /* Device to open as xf86Info.consoleFd */ | |
61 | static char consoleDev[PATH_MAX] = "/dev/fb"; | |
62 | ||
63 | /* Set by -dev argument on CLI | |
64 | Used by hw/xfree86/common/xf86AutoConfig.c for VIS_GETIDENTIFIER */ | |
65 | _X_HIDDEN char xf86SolarisFbDev[PATH_MAX] = "/dev/fb"; | |
66 | ||
67 | static void | |
68 | switch_to(int vt, const char *from) | |
69 | { | |
70 | int ret; | |
71 | ||
72 | SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_ACTIVATE, vt)); | |
73 | if (ret != 0) | |
74 | xf86Msg(X_WARNING, "%s: VT_ACTIVATE failed: %s\n", | |
75 | from, strerror(errno)); | |
76 | ||
77 | SYSCALL(ret = ioctl(xf86Info.consoleFd, VT_WAITACTIVE, vt)); | |
78 | if (ret != 0) | |
79 | xf86Msg(X_WARNING, "%s: VT_WAITACTIVE failed: %s\n", | |
80 | from, strerror(errno)); | |
81 | } | |
82 | ||
83 | void | |
84 | xf86OpenConsole(void) | |
85 | { | |
86 | int i; | |
87 | ||
88 | #ifdef HAS_USL_VTS | |
89 | int fd; | |
90 | struct vt_mode VT; | |
91 | struct vt_stat vtinfo; | |
92 | MessageType from = X_PROBED; | |
93 | #endif | |
94 | ||
95 | if (serverGeneration == 1) { | |
96 | /* Check if we're run with euid==0 */ | |
97 | if (geteuid() != 0) | |
98 | FatalError("xf86OpenConsole: Server must be suid root\n"); | |
99 | ||
100 | /* Protect page 0 to help find NULL dereferencing */ | |
101 | /* mprotect() doesn't seem to work */ | |
102 | if (Protect0) { | |
103 | int fd = -1; | |
104 | ||
105 | if ((fd = open("/dev/zero", O_RDONLY, 0)) < 0) { | |
106 | xf86Msg(X_WARNING, | |
107 | "xf86OpenConsole: cannot open /dev/zero (%s)\n", | |
108 | strerror(errno)); | |
109 | } | |
110 | else { | |
111 | if (mmap(0, 0x1000, PROT_NONE, | |
112 | MAP_FIXED | MAP_SHARED, fd, 0) == MAP_FAILED) | |
113 | xf86Msg(X_WARNING, | |
114 | "xf86OpenConsole: failed to protect page 0 (%s)\n", | |
115 | strerror(errno)); | |
116 | ||
117 | close(fd); | |
118 | } | |
119 | } | |
120 | ||
121 | #ifdef HAS_USL_VTS | |
122 | ||
123 | /* | |
124 | * Setup the virtual terminal manager | |
125 | */ | |
126 | if ((fd = open("/dev/vt/0", O_RDWR, 0)) == -1) { | |
127 | xf86ErrorF("xf86OpenConsole: Cannot open /dev/vt/0 (%s)\n", | |
128 | strerror(errno)); | |
129 | vtEnabled = 0; | |
130 | } | |
131 | else { | |
132 | if (ioctl(fd, VT_ENABLED, &vtEnabled) < 0) { | |
133 | xf86ErrorF("xf86OpenConsole: VT_ENABLED failed (%s)\n", | |
134 | strerror(errno)); | |
135 | vtEnabled = 0; | |
136 | } | |
137 | } | |
138 | #endif /* HAS_USL_VTS */ | |
139 | ||
140 | if (UseConsole) { | |
141 | strlcpy(consoleDev, SOL_CONSOLE_DEV, sizeof(consoleDev)); | |
142 | ||
143 | #ifdef HAS_USL_VTS | |
144 | xf86Info.vtno = CONSOLE_VTNO; | |
145 | ||
146 | if (vtEnabled == 0) { | |
147 | xf86StartVT = 0; | |
148 | } | |
149 | else { | |
150 | if (ioctl(fd, VT_GETSTATE, &vtinfo) < 0) | |
151 | FatalError | |
152 | ("xf86OpenConsole: Cannot determine current VT\n"); | |
153 | xf86StartVT = vtinfo.v_active; | |
154 | } | |
155 | #endif /* HAS_USL_VTS */ | |
156 | goto OPENCONSOLE; | |
157 | } | |
158 | ||
159 | #ifdef HAS_USL_VTS | |
160 | if (vtEnabled == 0) { | |
161 | /* VT not enabled - kernel too old or Sparc platforms | |
162 | without visual_io support */ | |
163 | xf86Msg(from, "VT infrastructure is not available\n"); | |
164 | ||
165 | xf86StartVT = 0; | |
166 | xf86Info.vtno = 0; | |
167 | strlcpy(consoleDev, xf86SolarisFbDev, sizeof(consoleDev)); | |
168 | goto OPENCONSOLE; | |
169 | } | |
170 | ||
171 | if (ioctl(fd, VT_GETSTATE, &vtinfo) < 0) | |
172 | FatalError("xf86OpenConsole: Cannot determine current VT\n"); | |
173 | ||
174 | xf86StartVT = vtinfo.v_active; | |
175 | ||
176 | if (VTnum != -1) { | |
177 | xf86Info.vtno = VTnum; | |
178 | from = X_CMDLINE; | |
179 | } | |
180 | else if (xf86Info.ShareVTs) { | |
181 | xf86Info.vtno = vtinfo.v_active; | |
182 | from = X_CMDLINE; | |
183 | } | |
184 | else { | |
185 | if ((ioctl(fd, VT_OPENQRY, &xf86Info.vtno) < 0) || | |
186 | (xf86Info.vtno == -1)) { | |
187 | FatalError("xf86OpenConsole: Cannot find a free VT\n"); | |
188 | } | |
189 | } | |
190 | ||
191 | xf86Msg(from, "using VT number %d\n\n", xf86Info.vtno); | |
192 | snprintf(consoleDev, PATH_MAX, "/dev/vt/%d", xf86Info.vtno); | |
193 | ||
194 | if (fd != -1) { | |
195 | close(fd); | |
196 | } | |
197 | ||
198 | #endif /* HAS_USL_VTS */ | |
199 | ||
200 | OPENCONSOLE: | |
201 | if (!KeepTty) | |
202 | setpgrp(); | |
203 | ||
204 | if (((xf86Info.consoleFd = open(consoleDev, O_RDWR | O_NDELAY, 0)) < 0)) | |
205 | FatalError("xf86OpenConsole: Cannot open %s (%s)\n", | |
206 | consoleDev, strerror(errno)); | |
207 | ||
208 | /* Change ownership of the vt or console */ | |
209 | chown(consoleDev, getuid(), getgid()); | |
210 | ||
211 | #ifdef HAS_USL_VTS | |
212 | if (xf86Info.ShareVTs) | |
213 | return; | |
214 | ||
215 | if (vtEnabled) { | |
216 | /* | |
217 | * Now get the VT | |
218 | */ | |
219 | switch_to(xf86Info.vtno, "xf86OpenConsole"); | |
220 | ||
221 | #ifdef VT_SET_CONSUSER /* added in snv_139 */ | |
222 | if (strcmp(display, "0") == 0) | |
223 | if (ioctl(xf86Info.consoleFd, VT_SET_CONSUSER) != 0) | |
224 | xf86Msg(X_WARNING, | |
225 | "xf86OpenConsole: VT_SET_CONSUSER failed\n"); | |
226 | #endif | |
227 | ||
228 | if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) < 0) | |
229 | FatalError("xf86OpenConsole: VT_GETMODE failed\n"); | |
230 | ||
231 | OsSignal(SIGUSR1, xf86VTAcquire); | |
232 | OsSignal(SIGUSR2, xf86VTRelease); | |
233 | ||
234 | VT.mode = VT_PROCESS; | |
235 | VT.acqsig = SIGUSR1; | |
236 | VT.relsig = SIGUSR2; | |
237 | ||
238 | if (ioctl(xf86Info.consoleFd, VT_SETMODE, &VT) < 0) | |
239 | FatalError("xf86OpenConsole: VT_SETMODE VT_PROCESS failed\n"); | |
240 | ||
241 | if (ioctl(xf86Info.consoleFd, VT_SETDISPINFO, atoi(display)) < 0) | |
242 | xf86Msg(X_WARNING, "xf86OpenConsole: VT_SETDISPINFO failed\n"); | |
243 | } | |
244 | #endif | |
245 | ||
246 | #ifdef KDSETMODE | |
247 | SYSCALL(i = ioctl(xf86Info.consoleFd, KDSETMODE, KD_GRAPHICS)); | |
248 | if (i < 0) { | |
249 | xf86Msg(X_WARNING, | |
250 | "xf86OpenConsole: KDSETMODE KD_GRAPHICS failed on %s (%s)\n", | |
251 | consoleDev, strerror(errno)); | |
252 | } | |
253 | #endif | |
254 | } | |
255 | else { /* serverGeneration != 1 */ | |
256 | ||
257 | #ifdef HAS_USL_VTS | |
258 | if (vtEnabled && !xf86Info.ShareVTs) { | |
259 | /* | |
260 | * Now re-get the VT | |
261 | */ | |
262 | if (xf86Info.autoVTSwitch) | |
263 | switch_to(xf86Info.vtno, "xf86OpenConsole"); | |
264 | ||
265 | #ifdef VT_SET_CONSUSER /* added in snv_139 */ | |
266 | if (strcmp(display, "0") == 0) | |
267 | if (ioctl(xf86Info.consoleFd, VT_SET_CONSUSER) != 0) | |
268 | xf86Msg(X_WARNING, | |
269 | "xf86OpenConsole: VT_SET_CONSUSER failed\n"); | |
270 | #endif | |
271 | ||
272 | /* | |
273 | * If the server doesn't have the VT when the reset occurs, | |
274 | * this is to make sure we don't continue until the activate | |
275 | * signal is received. | |
276 | */ | |
277 | if (!xf86VTOwner()) | |
278 | sleep(5); | |
279 | } | |
280 | #endif /* HAS_USL_VTS */ | |
281 | ||
282 | } | |
283 | } | |
284 | ||
285 | void | |
286 | xf86CloseConsole(void) | |
287 | { | |
288 | #ifdef HAS_USL_VTS | |
289 | struct vt_mode VT; | |
290 | #endif | |
291 | ||
292 | #if !defined(__i386__) && !defined(__i386) && !defined(__x86) | |
293 | ||
294 | if (!xf86DoConfigure) { | |
295 | int fd; | |
296 | ||
297 | /* | |
298 | * Wipe out framebuffer just like the non-SI Xsun server does. This | |
299 | * could be improved by saving framebuffer contents in | |
300 | * xf86OpenConsole() above and restoring them here. Also, it's unclear | |
301 | * at this point whether this should be done for all framebuffers in | |
302 | * the system, rather than only the console. | |
303 | */ | |
304 | if ((fd = open(xf86SolarisFbDev, O_RDWR, 0)) < 0) { | |
305 | xf86Msg(X_WARNING, | |
306 | "xf86CloseConsole(): unable to open framebuffer (%s)\n", | |
307 | strerror(errno)); | |
308 | } | |
309 | else { | |
310 | struct fbgattr fbattr; | |
311 | ||
312 | if ((ioctl(fd, FBIOGATTR, &fbattr) < 0) && | |
313 | (ioctl(fd, FBIOGTYPE, &fbattr.fbtype) < 0)) { | |
314 | xf86Msg(X_WARNING, | |
315 | "xf86CloseConsole(): unable to retrieve framebuffer" | |
316 | " attributes (%s)\n", strerror(errno)); | |
317 | } | |
318 | else { | |
319 | pointer fbdata; | |
320 | ||
321 | fbdata = mmap(NULL, fbattr.fbtype.fb_size, | |
322 | PROT_READ | PROT_WRITE, MAP_SHARED, fd, 0); | |
323 | if (fbdata == MAP_FAILED) { | |
324 | xf86Msg(X_WARNING, | |
325 | "xf86CloseConsole(): unable to mmap framebuffer" | |
326 | " (%s)\n", strerror(errno)); | |
327 | } | |
328 | else { | |
329 | memset(fbdata, 0, fbattr.fbtype.fb_size); | |
330 | munmap(fbdata, fbattr.fbtype.fb_size); | |
331 | } | |
332 | } | |
333 | ||
334 | close(fd); | |
335 | } | |
336 | } | |
337 | ||
338 | #endif | |
339 | ||
340 | #ifdef KDSETMODE | |
341 | /* Reset the display back to text mode */ | |
342 | SYSCALL(ioctl(xf86Info.consoleFd, KDSETMODE, KD_TEXT)); | |
343 | #endif | |
344 | ||
345 | #ifdef HAS_USL_VTS | |
346 | if (vtEnabled) { | |
347 | if (ioctl(xf86Info.consoleFd, VT_GETMODE, &VT) != -1) { | |
348 | VT.mode = VT_AUTO; /* Set default vt handling */ | |
349 | ioctl(xf86Info.consoleFd, VT_SETMODE, &VT); | |
350 | } | |
351 | ||
352 | /* Activate the VT that X was started on */ | |
353 | if (xf86Info.autoVTSwitch) | |
354 | switch_to(xf86StartVT, "xf86CloseConsole"); | |
355 | } | |
356 | #endif /* HAS_USL_VTS */ | |
357 | ||
358 | close(xf86Info.consoleFd); | |
359 | } | |
360 | ||
361 | int | |
362 | xf86ProcessArgument(int argc, char **argv, int i) | |
363 | { | |
364 | /* | |
365 | * Keep server from detaching from controlling tty. This is useful when | |
366 | * debugging, so the server can receive keyboard signals. | |
367 | */ | |
368 | if (!strcmp(argv[i], "-keeptty")) { | |
369 | KeepTty = TRUE; | |
370 | return 1; | |
371 | } | |
372 | ||
373 | /* | |
374 | * Undocumented flag to protect page 0 from read/write to help catch NULL | |
375 | * pointer dereferences. This is purely a debugging flag. | |
376 | */ | |
377 | if (!strcmp(argv[i], "-protect0")) { | |
378 | Protect0 = TRUE; | |
379 | return 1; | |
380 | } | |
381 | ||
382 | /* | |
383 | * Use /dev/console as the console device. | |
384 | */ | |
385 | if (!strcmp(argv[i], "-C")) { | |
386 | UseConsole = TRUE; | |
387 | return 1; | |
388 | } | |
389 | ||
390 | #ifdef HAS_USL_VTS | |
391 | ||
392 | if ((argv[i][0] == 'v') && (argv[i][1] == 't')) { | |
393 | if (sscanf(argv[i], "vt%d", &VTnum) == 0) { | |
394 | UseMsg(); | |
395 | VTnum = -1; | |
396 | return 0; | |
397 | } | |
398 | ||
399 | return 1; | |
400 | } | |
401 | ||
402 | #endif /* HAS_USL_VTS */ | |
403 | ||
404 | if ((i + 1) < argc) { | |
405 | if (!strcmp(argv[i], "-dev")) { | |
406 | strlcpy(xf86SolarisFbDev, argv[i + 1], sizeof(xf86SolarisFbDev)); | |
407 | return 2; | |
408 | } | |
409 | } | |
410 | ||
411 | return 0; | |
412 | } | |
413 | ||
414 | void | |
415 | xf86UseMsg(void) | |
416 | { | |
417 | #ifdef HAS_USL_VTS | |
418 | ErrorF("vtX Use the specified VT number\n"); | |
419 | #endif | |
420 | ErrorF("-dev <fb> Framebuffer device\n"); | |
421 | ErrorF("-keeptty Don't detach controlling tty\n"); | |
422 | ErrorF(" (for debugging only)\n"); | |
423 | ErrorF("-C Use /dev/console as the console device\n"); | |
424 | } |