1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
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
11 (at your option) any later version.
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 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
36 #include "bus-error.h"
37 #include "bus-errors.h"
39 #include "udev-util.h"
41 static bool arg_skip = false;
42 static bool arg_force = false;
43 static bool arg_show_progress = false;
45 static void start_target(const char *target) {
46 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
47 _cleanup_bus_unref_ sd_bus *bus = NULL;
52 r = bus_open_system_systemd(&bus);
54 log_error("Failed to get D-Bus connection: %s", strerror(-r));
58 log_info("Running request %s/start/replace", target);
60 /* Start these units only if we can replace base.target with it */
61 r = sd_bus_call_method(bus,
62 "org.freedesktop.systemd1",
63 "/org/freedesktop/systemd1",
64 "org.freedesktop.systemd1.Manager",
68 "sss", "basic.target", target, "replace");
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));
75 static int parse_proc_cmdline(void) {
76 char *line, *w, *state;
80 r = proc_cmdline(&line);
82 log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
86 FOREACH_WORD_QUOTED(w, l, line, state) {
88 if (strneq(w, "fsck.mode=auto", l))
89 arg_force = arg_skip = false;
90 else if (strneq(w, "fsck.mode=force", l))
92 else if (strneq(w, "fsck.mode=skip", l))
94 else if (startswith(w, "fsck"))
95 log_warning("Invalid fsck parameter. Ignoring.");
96 #ifdef HAVE_SYSV_COMPAT
97 else if (strneq(w, "fastboot", l)) {
98 log_error("Please pass 'fsck.mode=skip' rather than 'fastboot' on the kernel command line.");
100 } else if (strneq(w, "forcefsck", l)) {
101 log_error("Please pass 'fsck.mode=force' rather than 'forcefsck' on the kernel command line.");
111 static void test_files(void) {
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.");
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.");
124 if (access("/run/systemd/show-status", F_OK) >= 0 || plymouth_running())
125 arg_show_progress = true;
128 static double percent(int pass, unsigned long cur, unsigned long max) {
129 /* Values stolen from e2fsck */
131 static const int pass_table[] = {
132 0, 70, 90, 92, 95, 100
138 if ((unsigned) pass >= ELEMENTSOF(pass_table) || max == 0)
141 return (double) pass_table[pass-1] +
142 ((double) pass_table[pass] - (double) pass_table[pass-1]) *
143 (double) cur / (double) max;
146 static int process_progress(int fd) {
147 _cleanup_fclose_ FILE *console = NULL, *f = NULL;
154 close_nointr_nofail(fd);
158 console = fopen("/dev/console", "w");
164 unsigned long cur, max;
165 _cleanup_free_ char *device = NULL;
169 if (fscanf(f, "%i %lu %lu %ms", &pass, &cur, &max, &device) != 4)
172 /* Only show one progress counter at max */
174 if (flock(fileno(console), LOCK_EX|LOCK_NB) < 0)
180 /* Only update once every 50ms */
181 t = now(CLOCK_MONOTONIC);
182 if (last + 50 * USEC_PER_MSEC > t)
187 p = percent(pass, cur, max);
188 fprintf(console, "\r%s: fsck %3.1f%% complete...\r%n", device, p, &m);
198 fputc('\r', console);
199 for (j = 0; j < (unsigned) clear; j++)
201 fputc('\r', console);
208 int main(int argc, char *argv[]) {
209 const char *cmdline[9];
210 int i = 0, r = EXIT_FAILURE, q;
213 _cleanup_udev_unref_ struct udev *udev = NULL;
214 _cleanup_udev_device_unref_ struct udev_device *udev_device = NULL;
217 int progress_pipe[2] = { -1, -1 };
221 log_error("This program expects one or no arguments.");
225 log_set_target(LOG_TARGET_AUTO);
226 log_parse_environment();
231 parse_proc_cmdline();
234 if (!arg_force && arg_skip)
239 root_directory = false;
242 struct timespec times[2];
244 /* Find root device */
246 if (stat("/", &st) < 0) {
247 log_error("Failed to stat() the root directory: %m");
251 /* Virtual root devices don't need an fsck */
252 if (major(st.st_dev) == 0)
255 /* check if we are already writable */
256 times[0] = st.st_atim;
257 times[1] = st.st_mtim;
258 if (utimensat(AT_FDCWD, "/", times, 0) == 0) {
259 log_info("Root directory is writable, skipping check.");
269 udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev);
271 log_error("Failed to detect root device.");
275 device = udev_device_get_devnode(udev_device);
277 log_error("Failed to detect device node of root directory.");
281 root_directory = true;
284 if (arg_show_progress)
285 if (pipe(progress_pipe) < 0) {
286 log_error("pipe(): %m");
290 cmdline[i++] = "/sbin/fsck";
301 if (progress_pipe[1] >= 0) {
302 snprintf(dash_c, sizeof(dash_c), "-C%i", progress_pipe[1]);
303 char_array_0(dash_c);
304 cmdline[i++] = dash_c;
307 cmdline[i++] = device;
312 log_error("fork(): %m");
314 } else if (pid == 0) {
316 if (progress_pipe[0] >= 0)
317 close_nointr_nofail(progress_pipe[0]);
318 execv(cmdline[0], (char**) cmdline);
319 _exit(8); /* Operational error */
322 if (progress_pipe[1] >= 0) {
323 close_nointr_nofail(progress_pipe[1]);
324 progress_pipe[1] = -1;
327 if (progress_pipe[0] >= 0) {
328 process_progress(progress_pipe[0]);
329 progress_pipe[0] = -1;
332 q = wait_for_terminate(pid, &status);
334 log_error("waitid(): %s", strerror(-q));
338 if (status.si_code != CLD_EXITED || (status.si_status & ~1)) {
340 if (status.si_code == CLD_KILLED || status.si_code == CLD_DUMPED)
341 log_error("fsck terminated by signal %s.", signal_to_string(status.si_status));
342 else if (status.si_code == CLD_EXITED)
343 log_error("fsck failed with error code %i.", status.si_status);
345 log_error("fsck failed due to unknown reason.");
347 if (status.si_code == CLD_EXITED && (status.si_status & 2) && root_directory)
348 /* System should be rebooted. */
349 start_target(SPECIAL_REBOOT_TARGET);
350 else if (status.si_code == CLD_EXITED && (status.si_status & 6))
351 /* Some other problem */
352 start_target(SPECIAL_EMERGENCY_TARGET);
355 log_warning("Ignoring error.");
361 if (status.si_code == CLD_EXITED && (status.si_status & 1))
362 touch("/run/systemd/quotacheck");
365 close_pipe(progress_pipe);