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 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.
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.
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/>.
31 #include <dbus/dbus.h>
34 #include "dbus-common.h"
36 #include "bus-errors.h"
39 static bool arg_skip = false;
40 static bool arg_force = false;
41 static bool arg_show_progress = false;
43 static void start_target(const char *target, bool isolate) {
44 DBusMessage *m = NULL, *reply = NULL;
46 const char *mode, *basic_target = "basic.target";
47 DBusConnection *bus = NULL;
51 dbus_error_init(&error);
53 if (bus_connect(DBUS_BUS_SYSTEM, &bus, NULL, &error) < 0) {
54 log_error("Failed to get D-Bus connection: %s", bus_error_message(&error));
63 log_info("Running request %s/start/%s", target, mode);
65 if (!(m = dbus_message_new_method_call("org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "StartUnitReplace"))) {
66 log_error("Could not allocate message.");
70 /* Start these units only if we can replace base.target with it */
72 if (!dbus_message_append_args(m,
73 DBUS_TYPE_STRING, &basic_target,
74 DBUS_TYPE_STRING, &target,
75 DBUS_TYPE_STRING, &mode,
77 log_error("Could not attach target and flag information to message.");
81 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
83 /* Don't print a warning if we aren't called during
85 if (!dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_JOB))
86 log_error("Failed to start unit: %s", bus_error_message(&error));
93 dbus_message_unref(m);
96 dbus_message_unref(reply);
99 dbus_connection_flush(bus);
100 dbus_connection_close(bus);
101 dbus_connection_unref(bus);
104 dbus_error_free(&error);
107 static int parse_proc_cmdline(void) {
108 char *line, *w, *state;
112 if (detect_container(NULL) > 0)
115 if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) {
116 log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
120 FOREACH_WORD_QUOTED(w, l, line, state) {
122 if (strneq(w, "fsck.mode=auto", l))
123 arg_force = arg_skip = false;
124 else if (strneq(w, "fsck.mode=force", l))
126 else if (strneq(w, "fsck.mode=skip", l))
128 else if (startswith(w, "fsck.mode"))
129 log_warning("Invalid fsck.mode= parameter. Ignoring.");
130 #if defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA)
131 else if (strneq(w, "fastboot", l))
133 else if (strneq(w, "forcefsck", l))
142 static void test_files(void) {
143 if (access("/fastboot", F_OK) >= 0)
146 if (access("/forcefsck", F_OK) >= 0)
149 if (access("/run/systemd/show-status", F_OK) >= 0 || plymouth_running())
150 arg_show_progress = true;
153 static double percent(int pass, unsigned long cur, unsigned long max) {
154 /* Values stolen from e2fsck */
156 static const int pass_table[] = {
157 0, 70, 90, 92, 95, 100
163 if ((unsigned) pass >= ELEMENTSOF(pass_table) || max == 0)
166 return (double) pass_table[pass-1] +
167 ((double) pass_table[pass] - (double) pass_table[pass-1]) *
168 (double) cur / (double) max;
171 static int process_progress(int fd) {
179 close_nointr_nofail(fd);
183 console = fopen("/dev/console", "w");
191 unsigned long cur, max;
196 if (fscanf(f, "%i %lu %lu %ms", &pass, &cur, &max, &device) != 4)
199 /* Only show one progress counter at max */
201 if (flock(fileno(console), LOCK_EX|LOCK_NB) < 0) {
209 /* Only update once every 50ms */
210 t = now(CLOCK_MONOTONIC);
211 if (last + 50 * USEC_PER_MSEC > t) {
218 p = percent(pass, cur, max);
219 fprintf(console, "\r%s: fsck %3.1f%% complete...\r%n", device, p, &m);
231 fputc('\r', console);
232 for (j = 0; j < (unsigned) clear; j++)
234 fputc('\r', console);
243 int main(int argc, char *argv[]) {
244 const char *cmdline[9];
245 int i = 0, r = EXIT_FAILURE, q;
248 struct udev *udev = NULL;
249 struct udev_device *udev_device = NULL;
252 int progress_pipe[2] = { -1, -1 };
256 log_error("This program expects one or no arguments.");
260 log_set_target(LOG_TARGET_AUTO);
261 log_parse_environment();
266 parse_proc_cmdline();
269 if (!arg_force && arg_skip)
274 root_directory = false;
277 struct timespec times[2];
279 /* Find root device */
281 if (stat("/", &st) < 0) {
282 log_error("Failed to stat() the root directory: %m");
286 /* Virtual root devices don't need an fsck */
287 if (major(st.st_dev) == 0)
290 /* check if we are already writable */
291 times[0] = st.st_atim;
292 times[1] = st.st_mtim;
293 if (utimensat(AT_FDCWD, "/", times, 0) == 0) {
294 log_info("Root directory is writable, skipping check.");
298 if (!(udev = udev_new())) {
299 log_error("Out of memory");
303 if (!(udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev))) {
304 log_error("Failed to detect root device.");
308 if (!(device = udev_device_get_devnode(udev_device))) {
309 log_error("Failed to detect device node of root directory.");
313 root_directory = true;
316 if (arg_show_progress)
317 if (pipe(progress_pipe) < 0) {
318 log_error("pipe(): %m");
322 cmdline[i++] = "/sbin/fsck";
333 if (progress_pipe[1] >= 0) {
334 snprintf(dash_c, sizeof(dash_c), "-C%i", progress_pipe[1]);
335 char_array_0(dash_c);
336 cmdline[i++] = dash_c;
339 cmdline[i++] = device;
344 log_error("fork(): %m");
346 } else if (pid == 0) {
348 if (progress_pipe[0] >= 0)
349 close_nointr_nofail(progress_pipe[0]);
350 execv(cmdline[0], (char**) cmdline);
351 _exit(8); /* Operational error */
354 if (progress_pipe[1] >= 0) {
355 close_nointr_nofail(progress_pipe[1]);
356 progress_pipe[1] = -1;
359 if (progress_pipe[0] >= 0) {
360 process_progress(progress_pipe[0]);
361 progress_pipe[0] = -1;
364 q = wait_for_terminate(pid, &status);
366 log_error("waitid(): %s", strerror(-q));
370 if (status.si_code != CLD_EXITED || (status.si_status & ~1)) {
372 if (status.si_code == CLD_KILLED || status.si_code == CLD_DUMPED)
373 log_error("fsck terminated by signal %s.", signal_to_string(status.si_status));
374 else if (status.si_code == CLD_EXITED)
375 log_error("fsck failed with error code %i.", status.si_status);
377 log_error("fsck failed due to unknown reason.");
379 if (status.si_code == CLD_EXITED && (status.si_status & 2) && root_directory)
380 /* System should be rebooted. */
381 start_target(SPECIAL_REBOOT_TARGET, false);
382 else if (status.si_code == CLD_EXITED && (status.si_status & 6))
383 /* Some other problem */
384 start_target(SPECIAL_EMERGENCY_TARGET, true);
387 log_warning("Ignoring error.");
393 if (status.si_code == CLD_EXITED && (status.si_status & 1))
394 touch("/run/systemd/quotacheck");
398 udev_device_unref(udev_device);
403 close_pipe(progress_pipe);