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/>.
38 #include "bus-error.h"
39 #include "bus-common-errors.h"
41 #include "udev-util.h"
42 #include "path-util.h"
43 #include "socket-util.h"
44 #include "fsckd/fsckd.h"
46 static bool arg_skip
= false;
47 static bool arg_force
= false;
48 static const char *arg_repair
= "-a";
50 static void start_target(const char *target
) {
51 _cleanup_bus_error_free_ sd_bus_error error
= SD_BUS_ERROR_NULL
;
52 _cleanup_bus_close_unref_ sd_bus
*bus
= NULL
;
57 r
= bus_open_system_systemd(&bus
);
59 log_error_errno(r
, "Failed to get D-Bus connection: %m");
63 log_info("Running request %s/start/replace", target
);
65 /* Start these units only if we can replace base.target with it */
66 r
= sd_bus_call_method(bus
,
67 "org.freedesktop.systemd1",
68 "/org/freedesktop/systemd1",
69 "org.freedesktop.systemd1.Manager",
73 "sss", "basic.target", target
, "replace");
75 /* Don't print a warning if we aren't called during startup */
76 if (r
< 0 && !sd_bus_error_has_name(&error
, BUS_ERROR_NO_SUCH_JOB
))
77 log_error("Failed to start unit: %s", bus_error_message(&error
, -r
));
80 static int parse_proc_cmdline_item(const char *key
, const char *value
) {
82 if (streq(key
, "fsck.mode") && value
) {
84 if (streq(value
, "auto"))
85 arg_force
= arg_skip
= false;
86 else if (streq(value
, "force"))
88 else if (streq(value
, "skip"))
91 log_warning("Invalid fsck.mode= parameter '%s'. Ignoring.", value
);
93 } else if (streq(key
, "fsck.repair") && value
) {
95 if (streq(value
, "preen"))
97 else if (streq(value
, "yes"))
99 else if (streq(value
, "no"))
102 log_warning("Invalid fsck.repair= parameter '%s'. Ignoring.", value
);
105 #ifdef HAVE_SYSV_COMPAT
106 else if (streq(key
, "fastboot") && !value
) {
107 log_warning("Please pass 'fsck.mode=skip' rather than 'fastboot' on the kernel command line.");
110 } else if (streq(key
, "forcefsck") && !value
) {
111 log_warning("Please pass 'fsck.mode=force' rather than 'forcefsck' on the kernel command line.");
119 static void test_files(void) {
121 #ifdef HAVE_SYSV_COMPAT
122 if (access("/fastboot", F_OK
) >= 0) {
123 log_error("Please pass 'fsck.mode=skip' on the kernel command line rather than creating /fastboot on the root file system.");
127 if (access("/forcefsck", F_OK
) >= 0) {
128 log_error("Please pass 'fsck.mode=force' on the kernel command line rather than creating /forcefsck on the root file system.");
135 static int process_progress(int fd
, dev_t device_num
) {
136 _cleanup_fclose_
FILE *f
= NULL
;
138 _cleanup_close_
int fsckd_fd
= -1;
139 static const union sockaddr_union sa
= {
140 .un
.sun_family
= AF_UNIX
,
141 .un
.sun_path
= FSCKD_SOCKET_PATH
,
144 fsckd_fd
= socket(AF_UNIX
, SOCK_STREAM
| SOCK_CLOEXEC
, 0);
146 return log_warning_errno(errno
, "Cannot open fsckd socket, we won't report fsck progress: %m");
147 if (connect(fsckd_fd
, &sa
.sa
, offsetof(struct sockaddr_un
, sun_path
) + strlen(sa
.un
.sun_path
)) < 0)
148 return log_warning_errno(errno
, "Cannot connect to fsckd socket, we won't report fsck progress: %m");
152 return log_warning_errno(errno
, "Cannot connect to fsck, we won't report fsck progress: %m");
159 _cleanup_free_
char *device
= NULL
;
160 FsckProgress progress
;
162 if (fscanf(f
, "%i %lu %lu %ms", &pass
, &cur
, &max
, &device
) != 4)
165 /* Only update once every 50ms */
166 t
= now(CLOCK_MONOTONIC
);
167 if (last
+ 50 * USEC_PER_MSEC
> t
)
172 /* send progress to fsckd */
173 progress
.devnum
= device_num
;
176 progress
.pass
= pass
;
178 n
= send(fsckd_fd
, &progress
, sizeof(FsckProgress
), 0);
179 if (n
< 0 || (size_t) n
< sizeof(FsckProgress
))
180 log_warning_errno(errno
, "Cannot communicate fsck progress to fsckd: %m");
186 int main(int argc
, char *argv
[]) {
187 const char *cmdline
[9];
188 int i
= 0, r
= EXIT_FAILURE
, q
;
191 _cleanup_udev_unref_
struct udev
*udev
= NULL
;
192 _cleanup_udev_device_unref_
struct udev_device
*udev_device
= NULL
;
193 const char *device
, *type
;
195 int progress_pipe
[2] = { -1, -1 };
196 char dash_c
[sizeof("-C")-1 + DECIMAL_STR_MAX(int) + 1];
200 log_error("This program expects one or no arguments.");
204 log_set_target(LOG_TARGET_AUTO
);
205 log_parse_environment();
210 q
= parse_proc_cmdline(parse_proc_cmdline_item
);
212 log_warning_errno(q
, "Failed to parse kernel command line, ignoring: %m");
216 if (!arg_force
&& arg_skip
)
227 root_directory
= false;
229 if (stat(device
, &st
) < 0) {
230 log_error_errno(errno
, "Failed to stat '%s': %m", device
);
234 udev_device
= udev_device_new_from_devnum(udev
, 'b', st
.st_rdev
);
236 log_error("Failed to detect device %s", device
);
240 struct timespec times
[2];
242 /* Find root device */
244 if (stat("/", &st
) < 0) {
245 log_error_errno(errno
, "Failed to stat() the root directory: %m");
249 /* Virtual root devices don't need an fsck */
250 if (major(st
.st_dev
) == 0)
253 /* check if we are already writable */
254 times
[0] = st
.st_atim
;
255 times
[1] = st
.st_mtim
;
256 if (utimensat(AT_FDCWD
, "/", times
, 0) == 0) {
257 log_info("Root directory is writable, skipping check.");
261 udev_device
= udev_device_new_from_devnum(udev
, 'b', st
.st_dev
);
263 log_error("Failed to detect root device.");
267 device
= udev_device_get_devnode(udev_device
);
269 log_error("Failed to detect device node of root directory.");
273 root_directory
= true;
276 type
= udev_device_get_property_value(udev_device
, "ID_FS_TYPE");
278 r
= fsck_exists(type
);
280 log_info("fsck.%s doesn't exist, not checking file system on %s", type
, device
);
283 log_warning_errno(r
, "fsck.%s cannot be used for %s: %m", type
, device
);
286 if (pipe(progress_pipe
) < 0) {
287 log_error_errno(errno
, "pipe(): %m");
291 cmdline
[i
++] = "/sbin/fsck";
292 cmdline
[i
++] = arg_repair
;
296 * Since util-linux v2.25 fsck uses /run/fsck/<diskname>.lock files.
297 * The previous versions use flock for the device and conflict with
298 * udevd, see https://bugs.freedesktop.org/show_bug.cgi?id=79576#c5
308 if (progress_pipe
[1] >= 0) {
309 xsprintf(dash_c
, "-C%i", progress_pipe
[1]);
310 cmdline
[i
++] = dash_c
;
313 cmdline
[i
++] = device
;
318 log_error_errno(errno
, "fork(): %m");
320 } else if (pid
== 0) {
322 if (progress_pipe
[0] >= 0)
323 safe_close(progress_pipe
[0]);
324 execv(cmdline
[0], (char**) cmdline
);
325 _exit(8); /* Operational error */
328 progress_pipe
[1] = safe_close(progress_pipe
[1]);
330 if (progress_pipe
[0] >= 0) {
331 process_progress(progress_pipe
[0], st
.st_rdev
);
332 progress_pipe
[0] = -1;
335 q
= wait_for_terminate(pid
, &status
);
337 log_error_errno(q
, "waitid(): %m");
341 if (status
.si_code
!= CLD_EXITED
|| (status
.si_status
& ~1)) {
343 if (status
.si_code
== CLD_KILLED
|| status
.si_code
== CLD_DUMPED
)
344 log_error("fsck terminated by signal %s.", signal_to_string(status
.si_status
));
345 else if (status
.si_code
== CLD_EXITED
)
346 log_error("fsck failed with error code %i.", status
.si_status
);
348 log_error("fsck failed due to unknown reason.");
350 if (status
.si_code
== CLD_EXITED
&& (status
.si_status
& 2) && root_directory
)
351 /* System should be rebooted. */
352 start_target(SPECIAL_REBOOT_TARGET
);
353 else if (status
.si_code
== CLD_EXITED
&& (status
.si_status
& 6))
354 /* Some other problem */
355 start_target(SPECIAL_EMERGENCY_TARGET
);
358 log_warning("Ignoring error.");
364 if (status
.si_code
== CLD_EXITED
&& (status
.si_status
& 1))
365 touch("/run/systemd/quotacheck");
368 safe_close_pair(progress_pipe
);