406 lines
13 KiB
C
406 lines
13 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
|
|
|
/***
|
|
This file is part of systemd.
|
|
|
|
Copyright 2010 Lennart Poettering
|
|
Copyright 2014 Holger Hans Peter Freyther
|
|
|
|
systemd is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU Lesser General Public License as published by
|
|
the Free Software Foundation; either version 2.1 of the License, or
|
|
(at your option) any later version.
|
|
|
|
systemd is distributed in the hope that it will be useful, but
|
|
WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public License
|
|
along with systemd; If not, see <http://www.gnu.org/licenses/>.
|
|
***/
|
|
|
|
#include <stdio.h>
|
|
#include <stdbool.h>
|
|
#include <string.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <sys/file.h>
|
|
|
|
#include "sd-bus.h"
|
|
#include "libudev.h"
|
|
|
|
#include "util.h"
|
|
#include "special.h"
|
|
#include "bus-util.h"
|
|
#include "bus-error.h"
|
|
#include "bus-errors.h"
|
|
#include "fileio.h"
|
|
#include "udev-util.h"
|
|
#include "path-util.h"
|
|
|
|
static bool arg_skip = false;
|
|
static bool arg_force = false;
|
|
static bool arg_show_progress = false;
|
|
static const char *arg_repair = "-a";
|
|
|
|
static void start_target(const char *target) {
|
|
_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
|
|
_cleanup_bus_unref_ sd_bus *bus = NULL;
|
|
int r;
|
|
|
|
assert(target);
|
|
|
|
r = bus_open_system_systemd(&bus);
|
|
if (r < 0) {
|
|
log_error("Failed to get D-Bus connection: %s", strerror(-r));
|
|
return;
|
|
}
|
|
|
|
log_info("Running request %s/start/replace", target);
|
|
|
|
/* Start these units only if we can replace base.target with it */
|
|
r = sd_bus_call_method(bus,
|
|
"org.freedesktop.systemd1",
|
|
"/org/freedesktop/systemd1",
|
|
"org.freedesktop.systemd1.Manager",
|
|
"StartUnitReplace",
|
|
&error,
|
|
NULL,
|
|
"sss", "basic.target", target, "replace");
|
|
|
|
/* Don't print a warning if we aren't called during startup */
|
|
if (r < 0 && !sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_JOB))
|
|
log_error("Failed to start unit: %s", bus_error_message(&error, -r));
|
|
}
|
|
|
|
static int parse_proc_cmdline_item(const char *key, const char *value) {
|
|
|
|
if (streq(key, "fsck.mode") && value) {
|
|
|
|
if (streq(value, "auto"))
|
|
arg_force = arg_skip = false;
|
|
else if (streq(value, "force"))
|
|
arg_force = true;
|
|
else if (streq(value, "skip"))
|
|
arg_skip = true;
|
|
else
|
|
log_warning("Invalid fsck.mode= parameter. Ignoring.");
|
|
} else if (streq(key, "fsck.repair") && value) {
|
|
|
|
if (streq(value, "preen"))
|
|
arg_repair = "-a";
|
|
else if (streq(value, "yes"))
|
|
arg_repair = "-y";
|
|
else if (streq(value, "no"))
|
|
arg_repair = "-n";
|
|
else
|
|
log_warning("Invalid fsck.repair= parameter. Ignoring.");
|
|
} else if (startswith(key, "fsck."))
|
|
log_warning("Invalid fsck parameter. Ignoring.");
|
|
#ifdef HAVE_SYSV_COMPAT
|
|
else if (streq(key, "fastboot") && !value) {
|
|
log_warning("Please pass 'fsck.mode=skip' rather than 'fastboot' on the kernel command line.");
|
|
arg_skip = true;
|
|
} else if (streq(key, "forcefsck") && !value) {
|
|
log_warning("Please pass 'fsck.mode=force' rather than 'forcefsck' on the kernel command line.");
|
|
arg_force = true;
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void test_files(void) {
|
|
#ifdef HAVE_SYSV_COMPAT
|
|
if (access("/fastboot", F_OK) >= 0) {
|
|
log_error("Please pass 'fsck.mode=skip' on the kernel command line rather than creating /fastboot on the root file system.");
|
|
arg_skip = true;
|
|
}
|
|
|
|
if (access("/forcefsck", F_OK) >= 0) {
|
|
log_error("Please pass 'fsck.mode=force' on the kernel command line rather than creating /forcefsck on the root file system.");
|
|
arg_force = true;
|
|
}
|
|
#endif
|
|
|
|
if (access("/run/systemd/show-status", F_OK) >= 0 || plymouth_running())
|
|
arg_show_progress = true;
|
|
}
|
|
|
|
static double percent(int pass, unsigned long cur, unsigned long max) {
|
|
/* Values stolen from e2fsck */
|
|
|
|
static const int pass_table[] = {
|
|
0, 70, 90, 92, 95, 100
|
|
};
|
|
|
|
if (pass <= 0)
|
|
return 0.0;
|
|
|
|
if ((unsigned) pass >= ELEMENTSOF(pass_table) || max == 0)
|
|
return 100.0;
|
|
|
|
return (double) pass_table[pass-1] +
|
|
((double) pass_table[pass] - (double) pass_table[pass-1]) *
|
|
(double) cur / (double) max;
|
|
}
|
|
|
|
static int process_progress(int fd) {
|
|
_cleanup_fclose_ FILE *console = NULL, *f = NULL;
|
|
usec_t last = 0;
|
|
bool locked = false;
|
|
int clear = 0;
|
|
|
|
f = fdopen(fd, "r");
|
|
if (!f) {
|
|
safe_close(fd);
|
|
return -errno;
|
|
}
|
|
|
|
console = fopen("/dev/console", "we");
|
|
if (!console)
|
|
return -ENOMEM;
|
|
|
|
while (!feof(f)) {
|
|
int pass, m;
|
|
unsigned long cur, max;
|
|
_cleanup_free_ char *device = NULL;
|
|
double p;
|
|
usec_t t;
|
|
|
|
if (fscanf(f, "%i %lu %lu %ms", &pass, &cur, &max, &device) != 4)
|
|
break;
|
|
|
|
/* Only show one progress counter at max */
|
|
if (!locked) {
|
|
if (flock(fileno(console), LOCK_EX|LOCK_NB) < 0)
|
|
continue;
|
|
|
|
locked = true;
|
|
}
|
|
|
|
/* Only update once every 50ms */
|
|
t = now(CLOCK_MONOTONIC);
|
|
if (last + 50 * USEC_PER_MSEC > t)
|
|
continue;
|
|
|
|
last = t;
|
|
|
|
p = percent(pass, cur, max);
|
|
fprintf(console, "\r%s: fsck %3.1f%% complete...\r%n", device, p, &m);
|
|
fflush(console);
|
|
|
|
if (m > clear)
|
|
clear = m;
|
|
}
|
|
|
|
if (clear > 0) {
|
|
unsigned j;
|
|
|
|
fputc('\r', console);
|
|
for (j = 0; j < (unsigned) clear; j++)
|
|
fputc(' ', console);
|
|
fputc('\r', console);
|
|
fflush(console);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int main(int argc, char *argv[]) {
|
|
const char *cmdline[9];
|
|
int i = 0, r = EXIT_FAILURE, q;
|
|
pid_t pid;
|
|
siginfo_t status;
|
|
_cleanup_udev_unref_ struct udev *udev = NULL;
|
|
_cleanup_udev_device_unref_ struct udev_device *udev_device = NULL;
|
|
const char *device, *type;
|
|
bool root_directory;
|
|
int progress_pipe[2] = { -1, -1 };
|
|
char dash_c[2+10+1];
|
|
struct stat st;
|
|
|
|
if (argc > 2) {
|
|
log_error("This program expects one or no arguments.");
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
log_set_target(LOG_TARGET_AUTO);
|
|
log_parse_environment();
|
|
log_open();
|
|
|
|
umask(0022);
|
|
|
|
parse_proc_cmdline(parse_proc_cmdline_item);
|
|
test_files();
|
|
|
|
if (!arg_force && arg_skip)
|
|
return 0;
|
|
|
|
udev = udev_new();
|
|
if (!udev) {
|
|
log_oom();
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
if (argc > 1) {
|
|
device = argv[1];
|
|
root_directory = false;
|
|
|
|
if (stat(device, &st) < 0) {
|
|
log_error("Failed to stat '%s': %m", device);
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
udev_device = udev_device_new_from_devnum(udev, 'b', st.st_rdev);
|
|
if (!udev_device) {
|
|
log_error("Failed to detect device %s", device);
|
|
return EXIT_FAILURE;
|
|
}
|
|
} else {
|
|
struct timespec times[2];
|
|
|
|
/* Find root device */
|
|
|
|
if (stat("/", &st) < 0) {
|
|
log_error("Failed to stat() the root directory: %m");
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
/* Virtual root devices don't need an fsck */
|
|
if (major(st.st_dev) == 0)
|
|
return EXIT_SUCCESS;
|
|
|
|
/* check if we are already writable */
|
|
times[0] = st.st_atim;
|
|
times[1] = st.st_mtim;
|
|
if (utimensat(AT_FDCWD, "/", times, 0) == 0) {
|
|
log_info("Root directory is writable, skipping check.");
|
|
return EXIT_SUCCESS;
|
|
}
|
|
|
|
udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev);
|
|
if (!udev_device) {
|
|
log_error("Failed to detect root device.");
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
device = udev_device_get_devnode(udev_device);
|
|
if (!device) {
|
|
log_error("Failed to detect device node of root directory.");
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
root_directory = true;
|
|
}
|
|
|
|
type = udev_device_get_property_value(udev_device, "ID_FS_TYPE");
|
|
if (type) {
|
|
r = fsck_exists(type);
|
|
if (r < 0) {
|
|
if (r == -ENOENT) {
|
|
log_info("fsck.%s doesn't exist, not checking file system on %s",
|
|
type, device);
|
|
return EXIT_SUCCESS;
|
|
} else
|
|
log_warning("fsck.%s cannot be used for %s: %s",
|
|
type, device, strerror(-r));
|
|
}
|
|
}
|
|
|
|
if (arg_show_progress)
|
|
if (pipe(progress_pipe) < 0) {
|
|
log_error("pipe(): %m");
|
|
return EXIT_FAILURE;
|
|
}
|
|
|
|
cmdline[i++] = "/sbin/fsck";
|
|
cmdline[i++] = arg_repair;
|
|
cmdline[i++] = "-T";
|
|
|
|
/*
|
|
* Disable locking which conflict with udev's event
|
|
* ownershipi, until util-linux moves the flock
|
|
* synchronization file which prevents multiple fsck running
|
|
* on the same rotationg media, from the disk device
|
|
* node to a privately owned regular file.
|
|
*
|
|
* https://bugs.freedesktop.org/show_bug.cgi?id=79576#c5
|
|
*
|
|
* cmdline[i++] = "-l";
|
|
*/
|
|
|
|
if (!root_directory)
|
|
cmdline[i++] = "-M";
|
|
|
|
if (arg_force)
|
|
cmdline[i++] = "-f";
|
|
|
|
if (progress_pipe[1] >= 0) {
|
|
snprintf(dash_c, sizeof(dash_c), "-C%i", progress_pipe[1]);
|
|
char_array_0(dash_c);
|
|
cmdline[i++] = dash_c;
|
|
}
|
|
|
|
cmdline[i++] = device;
|
|
cmdline[i++] = NULL;
|
|
|
|
pid = fork();
|
|
if (pid < 0) {
|
|
log_error("fork(): %m");
|
|
goto finish;
|
|
} else if (pid == 0) {
|
|
/* Child */
|
|
if (progress_pipe[0] >= 0)
|
|
safe_close(progress_pipe[0]);
|
|
execv(cmdline[0], (char**) cmdline);
|
|
_exit(8); /* Operational error */
|
|
}
|
|
|
|
progress_pipe[1] = safe_close(progress_pipe[1]);
|
|
|
|
if (progress_pipe[0] >= 0) {
|
|
process_progress(progress_pipe[0]);
|
|
progress_pipe[0] = -1;
|
|
}
|
|
|
|
q = wait_for_terminate(pid, &status);
|
|
if (q < 0) {
|
|
log_error("waitid(): %s", strerror(-q));
|
|
goto finish;
|
|
}
|
|
|
|
if (status.si_code != CLD_EXITED || (status.si_status & ~1)) {
|
|
|
|
if (status.si_code == CLD_KILLED || status.si_code == CLD_DUMPED)
|
|
log_error("fsck terminated by signal %s.", signal_to_string(status.si_status));
|
|
else if (status.si_code == CLD_EXITED)
|
|
log_error("fsck failed with error code %i.", status.si_status);
|
|
else
|
|
log_error("fsck failed due to unknown reason.");
|
|
|
|
if (status.si_code == CLD_EXITED && (status.si_status & 2) && root_directory)
|
|
/* System should be rebooted. */
|
|
start_target(SPECIAL_REBOOT_TARGET);
|
|
else if (status.si_code == CLD_EXITED && (status.si_status & 6))
|
|
/* Some other problem */
|
|
start_target(SPECIAL_EMERGENCY_TARGET);
|
|
else {
|
|
r = EXIT_SUCCESS;
|
|
log_warning("Ignoring error.");
|
|
}
|
|
|
|
} else
|
|
r = EXIT_SUCCESS;
|
|
|
|
if (status.si_code == CLD_EXITED && (status.si_status & 1))
|
|
touch("/run/systemd/quotacheck");
|
|
|
|
finish:
|
|
safe_close_pair(progress_pipe);
|
|
|
|
return r;
|
|
}
|