]>
Commit | Line | Data |
---|---|---|
3d20ed6d LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
3d20ed6d LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
3d20ed6d | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
3d20ed6d LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
22 | #include <stdio.h> | |
23 | #include <stdbool.h> | |
24 | #include <string.h> | |
25 | #include <errno.h> | |
26 | #include <unistd.h> | |
a84f5192 | 27 | #include <fcntl.h> |
27d340c7 | 28 | #include <sys/file.h> |
3d20ed6d | 29 | |
0c842e0a TG |
30 | #include "sd-bus.h" |
31 | #include "libudev.h" | |
3d20ed6d LP |
32 | |
33 | #include "util.h" | |
3d20ed6d | 34 | #include "special.h" |
0c842e0a TG |
35 | #include "bus-util.h" |
36 | #include "bus-error.h" | |
ef1de59b | 37 | #include "bus-errors.h" |
a5c32cff | 38 | #include "fileio.h" |
1ca208fb | 39 | #include "udev-util.h" |
3d20ed6d LP |
40 | |
41 | static bool arg_skip = false; | |
42 | static bool arg_force = false; | |
27d340c7 | 43 | static bool arg_show_progress = false; |
3d20ed6d | 44 | |
80cfe9e1 | 45 | static void start_target(const char *target) { |
0c842e0a | 46 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
5220a6f3 | 47 | _cleanup_bus_unref_ sd_bus *bus = NULL; |
0c842e0a | 48 | int r; |
3d20ed6d LP |
49 | |
50 | assert(target); | |
51 | ||
0f8bd8de | 52 | r = bus_open_system_systemd(&bus); |
0c842e0a TG |
53 | if (r < 0) { |
54 | log_error("Failed to get D-Bus connection: %s", strerror(-r)); | |
55 | return; | |
3d20ed6d LP |
56 | } |
57 | ||
0c842e0a | 58 | log_info("Running request %s/start/replace", target); |
3d20ed6d | 59 | |
90bb85e1 | 60 | /* Start these units only if we can replace base.target with it */ |
0c842e0a TG |
61 | r = sd_bus_call_method(bus, |
62 | "org.freedesktop.systemd1", | |
63 | "/org/freedesktop/systemd1", | |
64 | "org.freedesktop.systemd1.Manager", | |
65 | "StartUnitReplace", | |
66 | &error, | |
67 | NULL, | |
68 | "sss", "basic.target", target, "replace"); | |
3d20ed6d | 69 | |
5220a6f3 LP |
70 | /* Don't print a warning if we aren't called during startup */ |
71 | if (r < 0 && !sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_JOB)) | |
72 | log_error("Failed to start unit: %s", bus_error_message(&error, -r)); | |
3d20ed6d LP |
73 | } |
74 | ||
75 | static int parse_proc_cmdline(void) { | |
b6520546 ZJS |
76 | _cleanup_free_ char *line = NULL; |
77 | char *w, *state; | |
3d20ed6d | 78 | size_t l; |
74df0fca | 79 | int r; |
3d20ed6d | 80 | |
74df0fca LP |
81 | r = proc_cmdline(&line); |
82 | if (r < 0) | |
3d20ed6d | 83 | log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); |
74df0fca | 84 | if (r <= 0) |
3d20ed6d | 85 | return 0; |
3d20ed6d LP |
86 | |
87 | FOREACH_WORD_QUOTED(w, l, line, state) { | |
88 | ||
89 | if (strneq(w, "fsck.mode=auto", l)) | |
90 | arg_force = arg_skip = false; | |
91 | else if (strneq(w, "fsck.mode=force", l)) | |
92 | arg_force = true; | |
93 | else if (strneq(w, "fsck.mode=skip", l)) | |
94 | arg_skip = true; | |
66a78c2b LP |
95 | else if (startswith(w, "fsck")) |
96 | log_warning("Invalid fsck parameter. Ignoring."); | |
32f992a5 LP |
97 | #ifdef HAVE_SYSV_COMPAT |
98 | else if (strneq(w, "fastboot", l)) { | |
99 | log_error("Please pass 'fsck.mode=skip' rather than 'fastboot' on the kernel command line."); | |
3d20ed6d | 100 | arg_skip = true; |
32f992a5 LP |
101 | } else if (strneq(w, "forcefsck", l)) { |
102 | log_error("Please pass 'fsck.mode=force' rather than 'forcefsck' on the kernel command line."); | |
3d20ed6d | 103 | arg_force = true; |
32f992a5 | 104 | } |
3d20ed6d LP |
105 | #endif |
106 | } | |
107 | ||
3d20ed6d LP |
108 | return 0; |
109 | } | |
110 | ||
111 | static void test_files(void) { | |
32f992a5 LP |
112 | #ifdef HAVE_SYSV_COMPAT |
113 | if (access("/fastboot", F_OK) >= 0) { | |
114 | log_error("Please pass 'fsck.mode=skip' on the kernel command line rather than creating /fastboot on the root file system."); | |
3d20ed6d | 115 | arg_skip = true; |
32f992a5 | 116 | } |
3d20ed6d | 117 | |
32f992a5 LP |
118 | if (access("/forcefsck", F_OK) >= 0) { |
119 | log_error("Please pass 'fsck.mode=force' on the kernel command line rather than creating /forcefsck on the root file system."); | |
3d20ed6d | 120 | arg_force = true; |
32f992a5 LP |
121 | } |
122 | #endif | |
27d340c7 LP |
123 | |
124 | if (access("/run/systemd/show-status", F_OK) >= 0 || plymouth_running()) | |
125 | arg_show_progress = true; | |
126 | } | |
127 | ||
128 | static double percent(int pass, unsigned long cur, unsigned long max) { | |
129 | /* Values stolen from e2fsck */ | |
130 | ||
131 | static const int pass_table[] = { | |
132 | 0, 70, 90, 92, 95, 100 | |
133 | }; | |
134 | ||
135 | if (pass <= 0) | |
136 | return 0.0; | |
137 | ||
138 | if ((unsigned) pass >= ELEMENTSOF(pass_table) || max == 0) | |
139 | return 100.0; | |
140 | ||
141 | return (double) pass_table[pass-1] + | |
142 | ((double) pass_table[pass] - (double) pass_table[pass-1]) * | |
143 | (double) cur / (double) max; | |
144 | } | |
145 | ||
146 | static int process_progress(int fd) { | |
e375825d | 147 | _cleanup_fclose_ FILE *console = NULL, *f = NULL; |
27d340c7 LP |
148 | usec_t last = 0; |
149 | bool locked = false; | |
150 | int clear = 0; | |
151 | ||
152 | f = fdopen(fd, "r"); | |
153 | if (!f) { | |
154 | close_nointr_nofail(fd); | |
155 | return -errno; | |
156 | } | |
157 | ||
158 | console = fopen("/dev/console", "w"); | |
e375825d | 159 | if (!console) |
27d340c7 | 160 | return -ENOMEM; |
27d340c7 LP |
161 | |
162 | while (!feof(f)) { | |
163 | int pass, m; | |
164 | unsigned long cur, max; | |
e375825d | 165 | _cleanup_free_ char *device = NULL; |
27d340c7 LP |
166 | double p; |
167 | usec_t t; | |
168 | ||
169 | if (fscanf(f, "%i %lu %lu %ms", &pass, &cur, &max, &device) != 4) | |
170 | break; | |
171 | ||
172 | /* Only show one progress counter at max */ | |
173 | if (!locked) { | |
e375825d | 174 | if (flock(fileno(console), LOCK_EX|LOCK_NB) < 0) |
27d340c7 | 175 | continue; |
27d340c7 LP |
176 | |
177 | locked = true; | |
178 | } | |
179 | ||
180 | /* Only update once every 50ms */ | |
181 | t = now(CLOCK_MONOTONIC); | |
e375825d | 182 | if (last + 50 * USEC_PER_MSEC > t) |
27d340c7 | 183 | continue; |
27d340c7 LP |
184 | |
185 | last = t; | |
186 | ||
187 | p = percent(pass, cur, max); | |
188 | fprintf(console, "\r%s: fsck %3.1f%% complete...\r%n", device, p, &m); | |
189 | fflush(console); | |
190 | ||
27d340c7 LP |
191 | if (m > clear) |
192 | clear = m; | |
193 | } | |
194 | ||
195 | if (clear > 0) { | |
196 | unsigned j; | |
197 | ||
198 | fputc('\r', console); | |
199 | for (j = 0; j < (unsigned) clear; j++) | |
200 | fputc(' ', console); | |
201 | fputc('\r', console); | |
202 | fflush(console); | |
203 | } | |
204 | ||
27d340c7 | 205 | return 0; |
3d20ed6d LP |
206 | } |
207 | ||
208 | int main(int argc, char *argv[]) { | |
27d340c7 | 209 | const char *cmdline[9]; |
3d20ed6d LP |
210 | int i = 0, r = EXIT_FAILURE, q; |
211 | pid_t pid; | |
212 | siginfo_t status; | |
1ca208fb ZJS |
213 | _cleanup_udev_unref_ struct udev *udev = NULL; |
214 | _cleanup_udev_device_unref_ struct udev_device *udev_device = NULL; | |
94192cda | 215 | const char *device, *type; |
dc8e15c2 | 216 | bool root_directory; |
27d340c7 LP |
217 | int progress_pipe[2] = { -1, -1 }; |
218 | char dash_c[2+10+1]; | |
94192cda | 219 | struct stat st; |
3d20ed6d | 220 | |
a9e1f5ec LP |
221 | if (argc > 2) { |
222 | log_error("This program expects one or no arguments."); | |
3d20ed6d LP |
223 | return EXIT_FAILURE; |
224 | } | |
225 | ||
27d340c7 | 226 | log_set_target(LOG_TARGET_AUTO); |
3d20ed6d LP |
227 | log_parse_environment(); |
228 | log_open(); | |
229 | ||
4c12626c LP |
230 | umask(0022); |
231 | ||
3d20ed6d LP |
232 | parse_proc_cmdline(); |
233 | test_files(); | |
234 | ||
a9e1f5ec LP |
235 | if (!arg_force && arg_skip) |
236 | return 0; | |
237 | ||
94192cda ZJS |
238 | udev = udev_new(); |
239 | if (!udev) { | |
240 | log_oom(); | |
241 | return EXIT_FAILURE; | |
242 | } | |
243 | ||
dc8e15c2 | 244 | if (argc > 1) { |
a9e1f5ec | 245 | device = argv[1]; |
dc8e15c2 | 246 | root_directory = false; |
94192cda ZJS |
247 | |
248 | if (stat(device, &st) < 0) { | |
249 | log_error("Failed to stat '%s': %m", device); | |
250 | return EXIT_FAILURE; | |
251 | } | |
252 | ||
253 | udev_device = udev_device_new_from_devnum(udev, 'b', st.st_rdev); | |
254 | if (!udev_device) { | |
255 | log_error("Failed to detect device %s", device); | |
256 | return EXIT_FAILURE; | |
257 | } | |
dc8e15c2 | 258 | } else { |
a84f5192 | 259 | struct timespec times[2]; |
3d20ed6d | 260 | |
a9e1f5ec LP |
261 | /* Find root device */ |
262 | ||
263 | if (stat("/", &st) < 0) { | |
264 | log_error("Failed to stat() the root directory: %m"); | |
e375825d | 265 | return EXIT_FAILURE; |
a9e1f5ec LP |
266 | } |
267 | ||
268 | /* Virtual root devices don't need an fsck */ | |
269 | if (major(st.st_dev) == 0) | |
e375825d | 270 | return EXIT_SUCCESS; |
a9e1f5ec | 271 | |
a84f5192 KS |
272 | /* check if we are already writable */ |
273 | times[0] = st.st_atim; | |
274 | times[1] = st.st_mtim; | |
275 | if (utimensat(AT_FDCWD, "/", times, 0) == 0) { | |
cf1a1055 | 276 | log_info("Root directory is writable, skipping check."); |
e375825d | 277 | return EXIT_SUCCESS; |
a84f5192 KS |
278 | } |
279 | ||
e375825d ZJS |
280 | udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev); |
281 | if (!udev_device) { | |
a9e1f5ec | 282 | log_error("Failed to detect root device."); |
e375825d | 283 | return EXIT_FAILURE; |
a9e1f5ec LP |
284 | } |
285 | ||
e375825d ZJS |
286 | device = udev_device_get_devnode(udev_device); |
287 | if (!device) { | |
a9e1f5ec | 288 | log_error("Failed to detect device node of root directory."); |
e375825d | 289 | return EXIT_FAILURE; |
3e33a44a | 290 | } |
dc8e15c2 LP |
291 | |
292 | root_directory = true; | |
3d20ed6d LP |
293 | } |
294 | ||
94192cda ZJS |
295 | type = udev_device_get_property_value(udev_device, "ID_FS_TYPE"); |
296 | if (type) { | |
297 | const char *checker = strappenda("/sbin/fsck.", type); | |
298 | r = access(checker, X_OK); | |
299 | if (r < 0) { | |
300 | if (errno == ENOENT) { | |
301 | log_info("%s doesn't exist, not checking file system.", checker); | |
302 | return EXIT_SUCCESS; | |
303 | } else | |
304 | log_warning("%s cannot be used: %m", checker); | |
305 | } | |
306 | } | |
307 | ||
27d340c7 LP |
308 | if (arg_show_progress) |
309 | if (pipe(progress_pipe) < 0) { | |
310 | log_error("pipe(): %m"); | |
e375825d | 311 | return EXIT_FAILURE; |
27d340c7 LP |
312 | } |
313 | ||
3d20ed6d LP |
314 | cmdline[i++] = "/sbin/fsck"; |
315 | cmdline[i++] = "-a"; | |
316 | cmdline[i++] = "-T"; | |
e9ecea88 | 317 | cmdline[i++] = "-l"; |
dc8e15c2 LP |
318 | |
319 | if (!root_directory) | |
320 | cmdline[i++] = "-M"; | |
3d20ed6d LP |
321 | |
322 | if (arg_force) | |
323 | cmdline[i++] = "-f"; | |
324 | ||
27d340c7 LP |
325 | if (progress_pipe[1] >= 0) { |
326 | snprintf(dash_c, sizeof(dash_c), "-C%i", progress_pipe[1]); | |
327 | char_array_0(dash_c); | |
328 | cmdline[i++] = dash_c; | |
329 | } | |
330 | ||
a9e1f5ec | 331 | cmdline[i++] = device; |
3d20ed6d LP |
332 | cmdline[i++] = NULL; |
333 | ||
27d340c7 LP |
334 | pid = fork(); |
335 | if (pid < 0) { | |
3d20ed6d LP |
336 | log_error("fork(): %m"); |
337 | goto finish; | |
338 | } else if (pid == 0) { | |
339 | /* Child */ | |
27d340c7 LP |
340 | if (progress_pipe[0] >= 0) |
341 | close_nointr_nofail(progress_pipe[0]); | |
3d20ed6d LP |
342 | execv(cmdline[0], (char**) cmdline); |
343 | _exit(8); /* Operational error */ | |
344 | } | |
345 | ||
27d340c7 LP |
346 | if (progress_pipe[1] >= 0) { |
347 | close_nointr_nofail(progress_pipe[1]); | |
348 | progress_pipe[1] = -1; | |
349 | } | |
350 | ||
351 | if (progress_pipe[0] >= 0) { | |
352 | process_progress(progress_pipe[0]); | |
353 | progress_pipe[0] = -1; | |
354 | } | |
355 | ||
356 | q = wait_for_terminate(pid, &status); | |
357 | if (q < 0) { | |
3d20ed6d LP |
358 | log_error("waitid(): %s", strerror(-q)); |
359 | goto finish; | |
360 | } | |
361 | ||
a9e1f5ec | 362 | if (status.si_code != CLD_EXITED || (status.si_status & ~1)) { |
3d20ed6d | 363 | |
a9e1f5ec LP |
364 | if (status.si_code == CLD_KILLED || status.si_code == CLD_DUMPED) |
365 | log_error("fsck terminated by signal %s.", signal_to_string(status.si_status)); | |
366 | else if (status.si_code == CLD_EXITED) | |
367 | log_error("fsck failed with error code %i.", status.si_status); | |
368 | else | |
369 | log_error("fsck failed due to unknown reason."); | |
3d20ed6d | 370 | |
a4c24ff7 | 371 | if (status.si_code == CLD_EXITED && (status.si_status & 2) && root_directory) |
3d20ed6d | 372 | /* System should be rebooted. */ |
80cfe9e1 | 373 | start_target(SPECIAL_REBOOT_TARGET); |
a4c24ff7 | 374 | else if (status.si_code == CLD_EXITED && (status.si_status & 6)) |
3d20ed6d | 375 | /* Some other problem */ |
80cfe9e1 | 376 | start_target(SPECIAL_EMERGENCY_TARGET); |
a4c24ff7 LP |
377 | else { |
378 | r = EXIT_SUCCESS; | |
379 | log_warning("Ignoring error."); | |
380 | } | |
3d20ed6d LP |
381 | |
382 | } else | |
383 | r = EXIT_SUCCESS; | |
384 | ||
a9e1f5ec | 385 | if (status.si_code == CLD_EXITED && (status.si_status & 1)) |
2b583ce6 | 386 | touch("/run/systemd/quotacheck"); |
3d20ed6d LP |
387 | |
388 | finish: | |
27d340c7 LP |
389 | close_pipe(progress_pipe); |
390 | ||
3d20ed6d LP |
391 | return r; |
392 | } |