1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
7 Copyright 2014 Holger Hans Peter Freyther
9 systemd is free software; you can redistribute it and/or modify it
10 under the terms of the GNU Lesser General Public License as published by
11 the Free Software Foundation; either version 2.1 of the License, or
12 (at your option) any later version.
14 systemd is distributed in the hope that it will be useful, but
15 WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 Lesser General Public License for more details.
19 You should have received a copy of the GNU Lesser General Public License
20 along with systemd; If not, see <http://www.gnu.org/licenses/>.
37 #include "bus-error.h"
38 #include "bus-errors.h"
40 #include "udev-util.h"
41 #include "path-util.h"
43 static bool arg_skip = false;
44 static bool arg_force = false;
45 static bool arg_show_progress = false;
46 static const char *arg_repair = "-a";
48 static void start_target(const char *target) {
49 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
50 _cleanup_bus_close_unref_ sd_bus *bus = NULL;
55 r = bus_open_system_systemd(&bus);
57 log_error("Failed to get D-Bus connection: %s", strerror(-r));
61 log_info("Running request %s/start/replace", target);
63 /* Start these units only if we can replace base.target with it */
64 r = sd_bus_call_method(bus,
65 "org.freedesktop.systemd1",
66 "/org/freedesktop/systemd1",
67 "org.freedesktop.systemd1.Manager",
71 "sss", "basic.target", target, "replace");
73 /* Don't print a warning if we aren't called during startup */
74 if (r < 0 && !sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_JOB))
75 log_error("Failed to start unit: %s", bus_error_message(&error, -r));
78 static int parse_proc_cmdline_item(const char *key, const char *value) {
80 if (streq(key, "fsck.mode") && value) {
82 if (streq(value, "auto"))
83 arg_force = arg_skip = false;
84 else if (streq(value, "force"))
86 else if (streq(value, "skip"))
89 log_warning("Invalid fsck.mode= parameter '%s'. Ignoring.", value);
91 } else if (streq(key, "fsck.repair") && value) {
93 if (streq(value, "preen"))
95 else if (streq(value, "yes"))
97 else if (streq(value, "no"))
100 log_warning("Invalid fsck.repair= parameter '%s'. Ignoring.", value);
103 #ifdef HAVE_SYSV_COMPAT
104 else if (streq(key, "fastboot") && !value) {
105 log_warning("Please pass 'fsck.mode=skip' rather than 'fastboot' on the kernel command line.");
108 } else if (streq(key, "forcefsck") && !value) {
109 log_warning("Please pass 'fsck.mode=force' rather than 'forcefsck' on the kernel command line.");
117 static void test_files(void) {
119 #ifdef HAVE_SYSV_COMPAT
120 if (access("/fastboot", F_OK) >= 0) {
121 log_error("Please pass 'fsck.mode=skip' on the kernel command line rather than creating /fastboot on the root file system.");
125 if (access("/forcefsck", F_OK) >= 0) {
126 log_error("Please pass 'fsck.mode=force' on the kernel command line rather than creating /forcefsck on the root file system.");
131 if (access("/run/systemd/show-status", F_OK) >= 0 || plymouth_running())
132 arg_show_progress = true;
135 static double percent(int pass, unsigned long cur, unsigned long max) {
136 /* Values stolen from e2fsck */
138 static const int pass_table[] = {
139 0, 70, 90, 92, 95, 100
145 if ((unsigned) pass >= ELEMENTSOF(pass_table) || max == 0)
148 return (double) pass_table[pass-1] +
149 ((double) pass_table[pass] - (double) pass_table[pass-1]) *
150 (double) cur / (double) max;
153 static int process_progress(int fd) {
154 _cleanup_fclose_ FILE *console = NULL, *f = NULL;
165 console = fopen("/dev/console", "we");
171 unsigned long cur, max;
172 _cleanup_free_ char *device = NULL;
176 if (fscanf(f, "%i %lu %lu %ms", &pass, &cur, &max, &device) != 4)
179 /* Only show one progress counter at max */
181 if (flock(fileno(console), LOCK_EX|LOCK_NB) < 0)
187 /* Only update once every 50ms */
188 t = now(CLOCK_MONOTONIC);
189 if (last + 50 * USEC_PER_MSEC > t)
194 p = percent(pass, cur, max);
195 fprintf(console, "\r%s: fsck %3.1f%% complete...\r%n", device, p, &m);
205 fputc('\r', console);
206 for (j = 0; j < (unsigned) clear; j++)
208 fputc('\r', console);
215 int main(int argc, char *argv[]) {
216 const char *cmdline[9];
217 int i = 0, r = EXIT_FAILURE, q;
220 _cleanup_udev_unref_ struct udev *udev = NULL;
221 _cleanup_udev_device_unref_ struct udev_device *udev_device = NULL;
222 const char *device, *type;
224 int progress_pipe[2] = { -1, -1 };
229 log_error("This program expects one or no arguments.");
233 log_set_target(LOG_TARGET_AUTO);
234 log_parse_environment();
239 parse_proc_cmdline(parse_proc_cmdline_item);
242 if (!arg_force && arg_skip)
253 root_directory = false;
255 if (stat(device, &st) < 0) {
256 log_error("Failed to stat '%s': %m", device);
260 udev_device = udev_device_new_from_devnum(udev, 'b', st.st_rdev);
262 log_error("Failed to detect device %s", device);
266 struct timespec times[2];
268 /* Find root device */
270 if (stat("/", &st) < 0) {
271 log_error("Failed to stat() the root directory: %m");
275 /* Virtual root devices don't need an fsck */
276 if (major(st.st_dev) == 0)
279 /* check if we are already writable */
280 times[0] = st.st_atim;
281 times[1] = st.st_mtim;
282 if (utimensat(AT_FDCWD, "/", times, 0) == 0) {
283 log_info("Root directory is writable, skipping check.");
287 udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev);
289 log_error("Failed to detect root device.");
293 device = udev_device_get_devnode(udev_device);
295 log_error("Failed to detect device node of root directory.");
299 root_directory = true;
302 type = udev_device_get_property_value(udev_device, "ID_FS_TYPE");
304 r = fsck_exists(type);
306 log_info("fsck.%s doesn't exist, not checking file system on %s", type, device);
309 log_warning("fsck.%s cannot be used for %s: %s", type, device, strerror(-r));
312 if (arg_show_progress)
313 if (pipe(progress_pipe) < 0) {
314 log_error("pipe(): %m");
318 cmdline[i++] = "/sbin/fsck";
319 cmdline[i++] = arg_repair;
323 * Disable locking which conflict with udev's event
324 * ownershipi, until util-linux moves the flock
325 * synchronization file which prevents multiple fsck running
326 * on the same rotationg media, from the disk device
327 * node to a privately owned regular file.
329 * https://bugs.freedesktop.org/show_bug.cgi?id=79576#c5
331 * cmdline[i++] = "-l";
340 if (progress_pipe[1] >= 0) {
341 snprintf(dash_c, sizeof(dash_c), "-C%i", progress_pipe[1]);
342 char_array_0(dash_c);
343 cmdline[i++] = dash_c;
346 cmdline[i++] = device;
351 log_error("fork(): %m");
353 } else if (pid == 0) {
355 if (progress_pipe[0] >= 0)
356 safe_close(progress_pipe[0]);
357 execv(cmdline[0], (char**) cmdline);
358 _exit(8); /* Operational error */
361 progress_pipe[1] = safe_close(progress_pipe[1]);
363 if (progress_pipe[0] >= 0) {
364 process_progress(progress_pipe[0]);
365 progress_pipe[0] = -1;
368 q = wait_for_terminate(pid, &status);
370 log_error("waitid(): %s", strerror(-q));
374 if (status.si_code != CLD_EXITED || (status.si_status & ~1)) {
376 if (status.si_code == CLD_KILLED || status.si_code == CLD_DUMPED)
377 log_error("fsck terminated by signal %s.", signal_to_string(status.si_status));
378 else if (status.si_code == CLD_EXITED)
379 log_error("fsck failed with error code %i.", status.si_status);
381 log_error("fsck failed due to unknown reason.");
383 if (status.si_code == CLD_EXITED && (status.si_status & 2) && root_directory)
384 /* System should be rebooted. */
385 start_target(SPECIAL_REBOOT_TARGET);
386 else if (status.si_code == CLD_EXITED && (status.si_status & 6))
387 /* Some other problem */
388 start_target(SPECIAL_EMERGENCY_TARGET);
391 log_warning("Ignoring error.");
397 if (status.si_code == CLD_EXITED && (status.si_status & 1))
398 touch("/run/systemd/quotacheck");
401 safe_close_pair(progress_pipe);