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git.ipfire.org Git - thirdparty/systemd.git/blob - src/fsck.c
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
);