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1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
2
3/***
4 This file is part of systemd.
5
6 Copyright 2010 Kay Sievers
7
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
12
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
20***/
21
22#include <stdio.h>
23#include <unistd.h>
24#include <stdlib.h>
25#include <errno.h>
26#include <string.h>
27#include <fcntl.h>
28#include <ctype.h>
29#include <stdbool.h>
30#include <stdarg.h>
31#include <limits.h>
32#include <locale.h>
33#include <langinfo.h>
34#include <sys/ioctl.h>
35#include <sys/wait.h>
36#include <linux/tiocl.h>
37#include <linux/kd.h>
38
39#include "util.h"
40#include "log.h"
41#include "macro.h"
42
653ab83b 43static bool is_vconsole(int fd) {
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44 unsigned char data[1];
45
46 data[0] = TIOCL_GETFGCONSOLE;
47 return ioctl(fd, TIOCLINUX, data) >= 0;
48}
49
50static bool is_locale_utf8(void) {
51 const char *set;
52
53 if (!setlocale(LC_ALL, ""))
54 return true;
55
56 set = nl_langinfo(CODESET);
57 if (!set)
58 return true;
59
60 return streq(set, "UTF-8");
61}
62
63static int disable_utf8(int fd) {
64 int r = 0, k;
65
66 if (ioctl(fd, KDSKBMODE, K_XLATE) < 0)
67 r = -errno;
68
69 if (loop_write(fd, "\033%@", 3, false) < 0)
70 r = -errno;
71
72 if ((k = write_one_line_file("/sys/module/vt/parameters/default_utf8", "0")) < 0)
73 r = k;
74
75 if (r < 0)
76 log_warning("Failed to disable UTF-8: %s", strerror(errno));
77
78 return r;
79}
80
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81static int load_keymap(const char *vc, const char *map, const char *map_toggle, bool utf8, pid_t *_pid) {
82 const char *args[8];
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83 int i = 0;
84 pid_t pid;
85
9841e8e3 86 args[i++] = KBD_LOADKEYS;
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87 args[i++] = "-q";
88 args[i++] = "-C";
89 args[i++] = vc;
90 if (utf8)
91 args[i++] = "-u";
92 args[i++] = map;
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93 if (map_toggle)
94 args[i++] = map_toggle;
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95 args[i++] = NULL;
96
97 if ((pid = fork()) < 0) {
98 log_error("Failed to fork: %m");
99 return -errno;
100 } else if (pid == 0) {
101 execv(args[0], (char **) args);
102 _exit(EXIT_FAILURE);
103 }
104
105 *_pid = pid;
106 return 0;
107}
108
109static int load_font(const char *vc, const char *font, const char *map, const char *unimap, pid_t *_pid) {
110 const char *args[9];
111 int i = 0;
112 pid_t pid;
113
9841e8e3 114 args[i++] = KBD_SETFONT;
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115 args[i++] = "-C";
116 args[i++] = vc;
117 args[i++] = font;
dd36de4d 118 if (map) {
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119 args[i++] = "-m";
120 args[i++] = map;
121 }
dd36de4d 122 if (unimap) {
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123 args[i++] = "-u";
124 args[i++] = unimap;
125 }
126 args[i++] = NULL;
127
128 if ((pid = fork()) < 0) {
129 log_error("Failed to fork: %m");
130 return -errno;
131 } else if (pid == 0) {
132 execv(args[0], (char **) args);
133 _exit(EXIT_FAILURE);
134 }
135
136 *_pid = pid;
137 return 0;
138}
139
140int main(int argc, char **argv) {
141 const char *vc;
142 char *vc_keymap = NULL;
5b396b06 143 char *vc_keymap_toggle = NULL;
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144 char *vc_font = NULL;
145 char *vc_font_map = NULL;
146 char *vc_font_unimap = NULL;
9841e8e3
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147#ifdef TARGET_GENTOO
148 char *vc_unicode = NULL;
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149#endif
150#ifdef TARGET_MANDRIVA
151 char *vc_keytable = NULL;
9841e8e3 152#endif
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153 int fd = -1;
154 bool utf8;
155 int r = EXIT_FAILURE;
156 pid_t font_pid = 0, keymap_pid = 0;
157
158 log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
159 log_parse_environment();
160 log_open();
161
162 if (argv[1])
163 vc = argv[1];
164 else
165 vc = "/dev/tty0";
166
167 if ((fd = open(vc, O_RDWR|O_CLOEXEC)) < 0) {
168 log_error("Failed to open %s: %m", vc);
169 goto finish;
170 }
171
653ab83b 172 if (!is_vconsole(fd)) {
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173 log_error("Device %s is not a virtual console.", vc);
174 goto finish;
175 }
176
653ab83b 177 utf8 = is_locale_utf8();
97c4a07d 178
653ab83b 179 if ((r = parse_env_file("/proc/cmdline", WHITESPACE,
1ebdf5b6 180#ifdef TARGET_FEDORA
1ebdf5b6 181 "SYSFONT", &vc_font,
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182 "KEYTABLE", &vc_keymap,
183#endif
184 "vconsole.keymap", &vc_keymap,
5b396b06 185 "vconsole.keymap.toggle", &vc_keymap_toggle,
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186 "vconsole.font", &vc_font,
187 "vconsole.font.map", &vc_font_map,
188 "vconsole.font.unimap", &vc_font_unimap,
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189 NULL)) < 0) {
190
191 if (r != -ENOENT)
653ab83b 192 log_warning("Failed to read /proc/cmdline: %s", strerror(-r));
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193 }
194
653ab83b 195 /* Hmm, nothing set on the kernel cmd line? Then let's
fd5bf055 196 * try /etc/vconsole.conf */
653ab83b 197 if (r <= 0 &&
fd5bf055 198 (r = parse_env_file("/etc/vconsole.conf", NEWLINE,
ae509abc 199 "KEYMAP", &vc_keymap,
5b396b06 200 "KEYMAP_TOGGLE", &vc_keymap_toggle,
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201 "FONT", &vc_font,
202 "FONT_MAP", &vc_font_map,
203 "FONT_UNIMAP", &vc_font_unimap,
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204 NULL)) < 0) {
205
206 if (r != -ENOENT)
fd5bf055 207 log_warning("Failed to read /etc/vconsole.conf: %s", strerror(-r));
1ebdf5b6 208 }
ae509abc 209
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210 if (r <= 0) {
211#ifdef TARGET_FEDORA
212 if ((r = parse_env_file("/etc/sysconfig/i18n", NEWLINE,
213 "SYSFONT", &vc_font,
214 "SYSFONTACM", &vc_font_map,
215 "UNIMAP", &vc_font_unimap,
216 NULL)) < 0) {
217
218 if (r != -ENOENT)
219 log_warning("Failed to read /etc/sysconfig/i18n: %s", strerror(-r));
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220 }
221
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222 if ((r = parse_env_file("/etc/sysconfig/keyboard", NEWLINE,
223 "KEYTABLE", &vc_keymap,
224 "KEYMAP", &vc_keymap,
225 NULL)) < 0) {
42431350 226
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227 if (r != -ENOENT)
228 log_warning("Failed to read /etc/sysconfig/i18n: %s", strerror(-r));
229 }
9841e8e3 230
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231 if (access("/etc/sysconfig/console/default.kmap", F_OK) >= 0) {
232 char *t;
233
234 if (!(t = strdup("/etc/sysconfig/console/default.kmap"))) {
235 log_error("Out of memory.");
236 goto finish;
9841e8e3 237 }
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238
239 free(vc_keymap);
240 vc_keymap = t;
9841e8e3 241 }
9841e8e3 242
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243#elif defined(TARGET_SUSE)
244 if ((r = parse_env_file("/etc/sysconfig/keyboard", NEWLINE,
245 "KEYTABLE", &vc_keymap,
246 NULL)) < 0) {
247
248 if (r != -ENOENT)
249 log_warning("Failed to read /etc/sysconfig/keyboard: %s", strerror(-r));
250 }
251
252 if ((r = parse_env_file("/etc/sysconfig/console", NEWLINE,
253 "CONSOLE_FONT", &vc_font,
254 "CONSOLE_SCREENMAP", &vc_font_map,
255 "CONSOLE_UNICODEMAP", &vc_font_unimap,
256 NULL)) < 0) {
257
258 if (r != -ENOENT)
259 log_warning("Failed to read /etc/sysconfig/console: %s", strerror(-r));
260 }
261
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262#elif defined(TARGET_ARCH)
263 if ((r = parse_env_file("/etc/rc.conf", NEWLINE,
264 "KEYMAP", &vc_keymap,
265 "CONSOLEFONT", &vc_font,
266 "CONSOLEMAP", &vc_font_map,
267 NULL)) < 0) {
268
269 if (r != -ENOENT)
270 log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
271 }
9841e8e3 272
f5c88ec1
MV
273#elif defined(TARGET_FRUGALWARE)
274 if ((r = parse_env_file("/etc/sysconfig/keymap", NEWLINE,
275 "keymap", &vc_keymap,
276 NULL)) < 0) {
277 if (r != -ENOENT)
278 log_warning("Failed to read /etc/sysconfig/keymap: %s", strerror(-r));
279 }
280 if ((r = parse_env_file("/etc/sysconfig/font", NEWLINE,
281 "font", &vc_font,
282 NULL)) < 0) {
283 if (r != -ENOENT)
284 log_warning("Failed to read /etc/sysconfig/font: %s", strerror(-r));
285 }
a338bab5
AS
286
287#elif defined(TARGET_ALTLINUX)
288 if ((r = parse_env_file("/etc/sysconfig/keyboard", NEWLINE,
289 "KEYTABLE", &vc_keymap,
290 NULL)) < 0) {
291
292 if (r != -ENOENT)
293 log_warning("Failed to read /etc/sysconfig/keyboard: %s", strerror(-r));
294 }
295
296 if ((r = parse_env_file("/etc/sysconfig/consolefont", NEWLINE,
297 "SYSFONT", &vc_font,
298 NULL)) < 0) {
299
300 if (r != -ENOENT)
301 log_warning("Failed to read /etc/sysconfig/console: %s", strerror(-r));
302 }
303
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304#elif defined(TARGET_GENTOO)
305 if ((r = parse_env_file("/etc/rc.conf", NEWLINE,
306 "unicode", &vc_unicode,
307 NULL)) < 0) {
308 if (r != -ENOENT)
309 log_warning("Failed to read /etc/rc.conf: %s", strerror(-r));
310 }
1ebdf5b6 311
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312 if (vc_unicode) {
313 int rc_unicode;
314
315 if ((rc_unicode = parse_boolean(vc_unicode)) < 0)
316 log_error("Unknown value for /etc/rc.conf unicode=%s", vc_unicode);
317 else {
318 if (rc_unicode && !utf8)
319 log_warning("/etc/rc.conf wants unicode, but current locale is not UTF-8 capable!");
320 else if (!rc_unicode && utf8) {
321 log_debug("/etc/rc.conf does not want unicode, leave it on in kernel but does not apply to vconsole.");
322 utf8 = false;
323 }
324 }
325 }
97c4a07d 326
653ab83b
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327 /* /etc/conf.d/consolefont comments and gentoo
328 * documentation mention uppercase, but the actual
329 * contents are lowercase. the existing
330 * /etc/init.d/consolefont tries both
331 */
332 if ((r = parse_env_file("/etc/conf.d/consolefont", NEWLINE,
333 "CONSOLEFONT", &vc_font,
334 "consolefont", &vc_font,
335 "consoletranslation", &vc_font_map,
336 "CONSOLETRANSLATION", &vc_font_map,
337 "unicodemap", &vc_font_unimap,
338 "UNICODEMAP", &vc_font_unimap,
339 NULL)) < 0) {
340 if (r != -ENOENT)
341 log_warning("Failed to read /etc/conf.d/consolefont: %s", strerror(-r));
342 }
97c4a07d 343
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344 if ((r = parse_env_file("/etc/conf.d/keymaps", NEWLINE,
345 "keymap", &vc_keymap,
346 "KEYMAP", &vc_keymap,
347 NULL)) < 0) {
348 if (r != -ENOENT)
349 log_warning("Failed to read /etc/conf.d/keymaps: %s", strerror(-r));
350 }
1de4d79b
AB
351
352#elif defined(TARGET_MANDRIVA)
353
354 if ((r = parse_env_file("/etc/sysconfig/i18n", NEWLINE,
355 "SYSFONT", &vc_font,
356 "SYSFONTACM", &vc_font_map,
357 "UNIMAP", &vc_font_unimap,
358 NULL)) < 0) {
359
360 if (r != -ENOENT)
361 log_warning("Failed to read /etc/sysconfig/i18n: %s", strerror(-r));
362 }
363
364 if ((r = parse_env_file("/etc/sysconfig/keyboard", NEWLINE,
365 "KEYTABLE", &vc_keytable,
366 "KEYMAP", &vc_keymap,
367 "UNIKEYTABLE", &vc_keymap,
368 "GRP_TOGGLE", &vc_keymap_toggle,
369 NULL)) < 0) {
370
371 if (r != -ENOENT)
372 log_warning("Failed to read /etc/sysconfig/i18n: %s", strerror(-r));
373 }
374
375 if (vc_keytable) {
376 if (vc_keymap)
377 free(vc_keymap);
378 if (utf8) {
379 if (endswith(vc_keytable, ".uni") || strstr(vc_keytable, ".uni."))
380 vc_keymap = strdup(vc_keytable);
381 else {
382 char *s;
383 if ((s = strstr(vc_keytable, ".map")))
384 vc_keytable[s-vc_keytable+1] = '\0';
385 vc_keymap = strappend(vc_keytable, ".uni");
386 }
387 } else
388 vc_keymap = strdup(vc_keytable);
389
390 free(vc_keytable);
391
392 if (!vc_keymap) {
393 log_error("Out of memory.");
394 goto finish;
395 }
396 }
397
398 if (access("/etc/sysconfig/console/default.kmap", F_OK) >= 0) {
399 char *t;
400
401 if (!(t = strdup("/etc/sysconfig/console/default.kmap"))) {
402 log_error("Out of memory.");
403 goto finish;
404 }
405
406 free(vc_keymap);
407 vc_keymap = t;
408 }
97c4a07d 409#endif
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LP
410 }
411
412 if (!vc_keymap)
413 vc_keymap = strdup("us");
414 if (!vc_font)
9841e8e3 415 vc_font = strdup(DEFAULT_FONT);
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LP
416
417 if (!vc_keymap || !vc_font) {
418 log_error("Failed to allocate strings.");
419 goto finish;
420 }
421
653ab83b
LP
422 if (!utf8)
423 disable_utf8(fd);
424
5b396b06 425 if (load_keymap(vc, vc_keymap, vc_keymap_toggle, utf8, &keymap_pid) >= 0 &&
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LP
426 load_font(vc, vc_font, vc_font_map, vc_font_unimap, &font_pid) >= 0)
427 r = EXIT_SUCCESS;
428
429finish:
430 if (keymap_pid > 0)
9841e8e3 431 wait_for_terminate_and_warn(KBD_LOADKEYS, keymap_pid);
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LP
432
433 if (font_pid > 0)
9841e8e3 434 wait_for_terminate_and_warn(KBD_SETFONT, font_pid);
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LP
435
436 free(vc_keymap);
437 free(vc_font);
438 free(vc_font_map);
439 free(vc_font_unimap);
440
441 if (fd >= 0)
442 close_nointr_nofail(fd);
443
444 return r;
445}