2010-10-19 21:19:12 +02:00
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/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
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/***
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This file is part of systemd.
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Copyright 2010 Lennart Poettering
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systemd is free software; you can redistribute it and/or modify it
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2012-04-12 00:20:58 +02:00
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under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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2010-10-19 21:19:12 +02:00
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(at your option) any later version.
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systemd is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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2012-04-12 00:20:58 +02:00
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Lesser General Public License for more details.
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2010-10-19 21:19:12 +02:00
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2012-04-12 00:20:58 +02:00
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You should have received a copy of the GNU Lesser General Public License
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2010-10-19 21:19:12 +02:00
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along with systemd; If not, see <http://www.gnu.org/licenses/>.
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***/
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#include <stdio.h>
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#include <stdbool.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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2010-10-29 19:54:02 +02:00
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#include <fcntl.h>
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2011-09-01 21:05:06 +02:00
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#include <sys/file.h>
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2010-10-19 21:19:12 +02:00
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2013-08-12 00:35:49 +02:00
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#include "sd-bus.h"
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#include "libudev.h"
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2010-10-19 21:19:12 +02:00
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#include "util.h"
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#include "special.h"
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2013-08-12 00:35:49 +02:00
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#include "bus-util.h"
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#include "bus-error.h"
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2010-10-22 16:12:56 +02:00
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#include "bus-errors.h"
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2013-02-14 12:26:13 +01:00
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#include "fileio.h"
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2013-10-13 02:28:21 +02:00
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#include "udev-util.h"
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2010-10-19 21:19:12 +02:00
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static bool arg_skip = false;
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static bool arg_force = false;
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2011-09-01 21:05:06 +02:00
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static bool arg_show_progress = false;
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2010-10-19 21:19:12 +02:00
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2012-05-04 10:32:47 +02:00
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static void start_target(const char *target) {
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2013-08-12 00:35:49 +02:00
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_cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
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2013-10-30 16:13:21 +01:00
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_cleanup_bus_unref_ sd_bus *bus = NULL;
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2013-08-12 00:35:49 +02:00
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int r;
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2010-10-19 21:19:12 +02:00
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assert(target);
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2013-10-30 13:52:40 +01:00
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r = bus_open_system_systemd(&bus);
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2013-08-12 00:35:49 +02:00
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if (r < 0) {
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log_error("Failed to get D-Bus connection: %s", strerror(-r));
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return;
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2010-10-19 21:19:12 +02:00
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}
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2013-08-12 00:35:49 +02:00
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log_info("Running request %s/start/replace", target);
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2010-10-19 21:19:12 +02:00
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2010-10-19 21:53:19 +02:00
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/* Start these units only if we can replace base.target with it */
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2013-08-12 00:35:49 +02:00
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r = sd_bus_call_method(bus,
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"org.freedesktop.systemd1",
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"/org/freedesktop/systemd1",
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"org.freedesktop.systemd1.Manager",
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"StartUnitReplace",
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&error,
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NULL,
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"sss", "basic.target", target, "replace");
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2010-10-19 21:19:12 +02:00
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2013-10-30 16:13:21 +01:00
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/* Don't print a warning if we aren't called during startup */
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if (r < 0 && !sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_JOB))
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log_error("Failed to start unit: %s", bus_error_message(&error, -r));
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2010-10-19 21:19:12 +02:00
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}
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2014-02-16 00:08:59 +01:00
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static int parse_proc_cmdline_word(const char *w) {
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if (streq(w, "fsck.mode=auto"))
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arg_force = arg_skip = false;
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else if (streq(w, "fsck.mode=force"))
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arg_force = true;
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else if (streq(w, "fsck.mode=skip"))
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arg_skip = true;
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else if (startswith(w, "fsck"))
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log_warning("Invalid fsck parameter. Ignoring.");
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2013-01-04 22:00:46 +01:00
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#ifdef HAVE_SYSV_COMPAT
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2014-02-16 00:08:59 +01:00
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else if (streq(w, "fastboot")) {
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log_error("Please pass 'fsck.mode=skip' rather than 'fastboot' on the kernel command line.");
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arg_skip = true;
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} else if (streq(w, "forcefsck")) {
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log_error("Please pass 'fsck.mode=force' rather than 'forcefsck' on the kernel command line.");
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arg_force = true;
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2010-10-19 21:19:12 +02:00
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}
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2014-02-16 00:08:59 +01:00
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#endif
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2010-10-19 21:19:12 +02:00
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return 0;
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}
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static void test_files(void) {
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2013-01-04 22:00:46 +01:00
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#ifdef HAVE_SYSV_COMPAT
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if (access("/fastboot", F_OK) >= 0) {
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log_error("Please pass 'fsck.mode=skip' on the kernel command line rather than creating /fastboot on the root file system.");
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2010-10-19 21:19:12 +02:00
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arg_skip = true;
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2013-01-04 22:00:46 +01:00
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}
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2010-10-19 21:19:12 +02:00
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2013-01-04 22:00:46 +01:00
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if (access("/forcefsck", F_OK) >= 0) {
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log_error("Please pass 'fsck.mode=force' on the kernel command line rather than creating /forcefsck on the root file system.");
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2010-10-19 21:19:12 +02:00
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arg_force = true;
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2013-01-04 22:00:46 +01:00
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}
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#endif
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2011-09-01 21:05:06 +02:00
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if (access("/run/systemd/show-status", F_OK) >= 0 || plymouth_running())
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arg_show_progress = true;
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}
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static double percent(int pass, unsigned long cur, unsigned long max) {
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/* Values stolen from e2fsck */
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static const int pass_table[] = {
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0, 70, 90, 92, 95, 100
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};
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if (pass <= 0)
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return 0.0;
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if ((unsigned) pass >= ELEMENTSOF(pass_table) || max == 0)
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return 100.0;
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return (double) pass_table[pass-1] +
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((double) pass_table[pass] - (double) pass_table[pass-1]) *
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(double) cur / (double) max;
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}
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static int process_progress(int fd) {
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2013-11-12 05:32:31 +01:00
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_cleanup_fclose_ FILE *console = NULL, *f = NULL;
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2011-09-01 21:05:06 +02:00
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usec_t last = 0;
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bool locked = false;
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int clear = 0;
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f = fdopen(fd, "r");
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if (!f) {
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close_nointr_nofail(fd);
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return -errno;
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}
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2014-02-13 14:59:56 +01:00
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console = fopen("/dev/console", "we");
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2013-11-12 05:32:31 +01:00
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if (!console)
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2011-09-01 21:05:06 +02:00
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return -ENOMEM;
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while (!feof(f)) {
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int pass, m;
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unsigned long cur, max;
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2013-11-12 05:32:31 +01:00
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_cleanup_free_ char *device = NULL;
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2011-09-01 21:05:06 +02:00
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double p;
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usec_t t;
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if (fscanf(f, "%i %lu %lu %ms", &pass, &cur, &max, &device) != 4)
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break;
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/* Only show one progress counter at max */
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if (!locked) {
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2013-11-12 05:32:31 +01:00
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if (flock(fileno(console), LOCK_EX|LOCK_NB) < 0)
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2011-09-01 21:05:06 +02:00
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continue;
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locked = true;
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}
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/* Only update once every 50ms */
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t = now(CLOCK_MONOTONIC);
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2013-11-12 05:32:31 +01:00
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if (last + 50 * USEC_PER_MSEC > t)
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2011-09-01 21:05:06 +02:00
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continue;
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last = t;
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p = percent(pass, cur, max);
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fprintf(console, "\r%s: fsck %3.1f%% complete...\r%n", device, p, &m);
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fflush(console);
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if (m > clear)
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clear = m;
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}
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if (clear > 0) {
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unsigned j;
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fputc('\r', console);
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for (j = 0; j < (unsigned) clear; j++)
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fputc(' ', console);
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fputc('\r', console);
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fflush(console);
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}
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return 0;
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2010-10-19 21:19:12 +02:00
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}
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int main(int argc, char *argv[]) {
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2011-09-01 21:05:06 +02:00
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const char *cmdline[9];
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2010-10-19 21:19:12 +02:00
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int i = 0, r = EXIT_FAILURE, q;
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pid_t pid;
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siginfo_t status;
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2013-10-13 02:28:21 +02:00
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_cleanup_udev_unref_ struct udev *udev = NULL;
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_cleanup_udev_device_unref_ struct udev_device *udev_device = NULL;
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fsck,fstab-generator: be lenient about missing fsck.<type>
If fstab contains 1 for passno, treat this as an error, but only warn
briefly. If fstab doesn't contain this information, don't complain at
all.
Patch is complicated a bit by the fact that we might have the fstype specified
in fstab or on /proc/cmdline, in which case we can check if we have the appropriate
fsck tool, or not specified, or specified as auto, in which case we have to look
and check the type of the filesystem ourselves. It cannot be done before the
device appears, so it is too early in the generator phase, and it must be done
directly in fsck service.
2013-11-12 06:53:59 +01:00
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const char *device, *type;
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2010-10-20 00:44:09 +02:00
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bool root_directory;
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2011-09-01 21:05:06 +02:00
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int progress_pipe[2] = { -1, -1 };
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char dash_c[2+10+1];
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fsck,fstab-generator: be lenient about missing fsck.<type>
If fstab contains 1 for passno, treat this as an error, but only warn
briefly. If fstab doesn't contain this information, don't complain at
all.
Patch is complicated a bit by the fact that we might have the fstype specified
in fstab or on /proc/cmdline, in which case we can check if we have the appropriate
fsck tool, or not specified, or specified as auto, in which case we have to look
and check the type of the filesystem ourselves. It cannot be done before the
device appears, so it is too early in the generator phase, and it must be done
directly in fsck service.
2013-11-12 06:53:59 +01:00
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struct stat st;
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2010-10-19 21:19:12 +02:00
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2010-10-19 23:45:18 +02:00
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if (argc > 2) {
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log_error("This program expects one or no arguments.");
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2010-10-19 21:19:12 +02:00
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return EXIT_FAILURE;
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}
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2011-09-01 21:05:06 +02:00
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log_set_target(LOG_TARGET_AUTO);
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2010-10-19 21:19:12 +02:00
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log_parse_environment();
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log_open();
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2011-08-01 20:52:18 +02:00
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umask(0022);
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2014-02-16 00:08:59 +01:00
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parse_proc_cmdline(parse_proc_cmdline_word);
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2010-10-19 21:19:12 +02:00
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test_files();
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2010-10-19 23:45:18 +02:00
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if (!arg_force && arg_skip)
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return 0;
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fsck,fstab-generator: be lenient about missing fsck.<type>
If fstab contains 1 for passno, treat this as an error, but only warn
briefly. If fstab doesn't contain this information, don't complain at
all.
Patch is complicated a bit by the fact that we might have the fstype specified
in fstab or on /proc/cmdline, in which case we can check if we have the appropriate
fsck tool, or not specified, or specified as auto, in which case we have to look
and check the type of the filesystem ourselves. It cannot be done before the
device appears, so it is too early in the generator phase, and it must be done
directly in fsck service.
2013-11-12 06:53:59 +01:00
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udev = udev_new();
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if (!udev) {
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log_oom();
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return EXIT_FAILURE;
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}
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2010-10-20 00:44:09 +02:00
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if (argc > 1) {
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2010-10-19 23:45:18 +02:00
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device = argv[1];
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2010-10-20 00:44:09 +02:00
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root_directory = false;
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fsck,fstab-generator: be lenient about missing fsck.<type>
If fstab contains 1 for passno, treat this as an error, but only warn
briefly. If fstab doesn't contain this information, don't complain at
all.
Patch is complicated a bit by the fact that we might have the fstype specified
in fstab or on /proc/cmdline, in which case we can check if we have the appropriate
fsck tool, or not specified, or specified as auto, in which case we have to look
and check the type of the filesystem ourselves. It cannot be done before the
device appears, so it is too early in the generator phase, and it must be done
directly in fsck service.
2013-11-12 06:53:59 +01:00
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if (stat(device, &st) < 0) {
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log_error("Failed to stat '%s': %m", device);
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return EXIT_FAILURE;
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}
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udev_device = udev_device_new_from_devnum(udev, 'b', st.st_rdev);
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if (!udev_device) {
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log_error("Failed to detect device %s", device);
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return EXIT_FAILURE;
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}
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2010-10-20 00:44:09 +02:00
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} else {
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2010-10-29 19:54:02 +02:00
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struct timespec times[2];
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2010-10-19 21:19:12 +02:00
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2010-10-19 23:45:18 +02:00
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/* Find root device */
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if (stat("/", &st) < 0) {
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log_error("Failed to stat() the root directory: %m");
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2013-11-12 05:32:31 +01:00
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return EXIT_FAILURE;
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2010-10-19 23:45:18 +02:00
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}
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/* Virtual root devices don't need an fsck */
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if (major(st.st_dev) == 0)
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2013-11-12 05:32:31 +01:00
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return EXIT_SUCCESS;
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2010-10-19 23:45:18 +02:00
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2010-10-29 19:54:02 +02:00
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/* check if we are already writable */
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times[0] = st.st_atim;
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times[1] = st.st_mtim;
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if (utimensat(AT_FDCWD, "/", times, 0) == 0) {
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2010-10-31 00:39:36 +02:00
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log_info("Root directory is writable, skipping check.");
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2013-11-12 05:32:31 +01:00
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return EXIT_SUCCESS;
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2010-10-29 19:54:02 +02:00
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}
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2013-11-12 05:32:31 +01:00
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udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev);
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if (!udev_device) {
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2010-10-19 23:45:18 +02:00
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log_error("Failed to detect root device.");
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2013-11-12 05:32:31 +01:00
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return EXIT_FAILURE;
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2010-10-19 23:45:18 +02:00
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}
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2013-11-12 05:32:31 +01:00
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device = udev_device_get_devnode(udev_device);
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if (!device) {
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2010-10-19 23:45:18 +02:00
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log_error("Failed to detect device node of root directory.");
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2013-11-12 05:32:31 +01:00
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return EXIT_FAILURE;
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2010-10-19 21:22:47 +02:00
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}
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2010-10-20 00:44:09 +02:00
|
|
|
|
|
|
|
root_directory = true;
|
2010-10-19 21:19:12 +02:00
|
|
|
}
|
|
|
|
|
fsck,fstab-generator: be lenient about missing fsck.<type>
If fstab contains 1 for passno, treat this as an error, but only warn
briefly. If fstab doesn't contain this information, don't complain at
all.
Patch is complicated a bit by the fact that we might have the fstype specified
in fstab or on /proc/cmdline, in which case we can check if we have the appropriate
fsck tool, or not specified, or specified as auto, in which case we have to look
and check the type of the filesystem ourselves. It cannot be done before the
device appears, so it is too early in the generator phase, and it must be done
directly in fsck service.
2013-11-12 06:53:59 +01:00
|
|
|
type = udev_device_get_property_value(udev_device, "ID_FS_TYPE");
|
|
|
|
if (type) {
|
|
|
|
const char *checker = strappenda("/sbin/fsck.", type);
|
|
|
|
r = access(checker, X_OK);
|
|
|
|
if (r < 0) {
|
|
|
|
if (errno == ENOENT) {
|
|
|
|
log_info("%s doesn't exist, not checking file system.", checker);
|
|
|
|
return EXIT_SUCCESS;
|
|
|
|
} else
|
|
|
|
log_warning("%s cannot be used: %m", checker);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2011-09-01 21:05:06 +02:00
|
|
|
if (arg_show_progress)
|
|
|
|
if (pipe(progress_pipe) < 0) {
|
|
|
|
log_error("pipe(): %m");
|
2013-11-12 05:32:31 +01:00
|
|
|
return EXIT_FAILURE;
|
2011-09-01 21:05:06 +02:00
|
|
|
}
|
|
|
|
|
2010-10-19 21:19:12 +02:00
|
|
|
cmdline[i++] = "/sbin/fsck";
|
|
|
|
cmdline[i++] = "-a";
|
|
|
|
cmdline[i++] = "-T";
|
2010-11-19 04:22:36 +01:00
|
|
|
cmdline[i++] = "-l";
|
2010-10-20 00:44:09 +02:00
|
|
|
|
|
|
|
if (!root_directory)
|
|
|
|
cmdline[i++] = "-M";
|
2010-10-19 21:19:12 +02:00
|
|
|
|
|
|
|
if (arg_force)
|
|
|
|
cmdline[i++] = "-f";
|
|
|
|
|
2011-09-01 21:05:06 +02:00
|
|
|
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;
|
|
|
|
}
|
|
|
|
|
2010-10-19 23:45:18 +02:00
|
|
|
cmdline[i++] = device;
|
2010-10-19 21:19:12 +02:00
|
|
|
cmdline[i++] = NULL;
|
|
|
|
|
2011-09-01 21:05:06 +02:00
|
|
|
pid = fork();
|
|
|
|
if (pid < 0) {
|
2010-10-19 21:19:12 +02:00
|
|
|
log_error("fork(): %m");
|
|
|
|
goto finish;
|
|
|
|
} else if (pid == 0) {
|
|
|
|
/* Child */
|
2011-09-01 21:05:06 +02:00
|
|
|
if (progress_pipe[0] >= 0)
|
|
|
|
close_nointr_nofail(progress_pipe[0]);
|
2010-10-19 21:19:12 +02:00
|
|
|
execv(cmdline[0], (char**) cmdline);
|
|
|
|
_exit(8); /* Operational error */
|
|
|
|
}
|
|
|
|
|
2011-09-01 21:05:06 +02:00
|
|
|
if (progress_pipe[1] >= 0) {
|
|
|
|
close_nointr_nofail(progress_pipe[1]);
|
|
|
|
progress_pipe[1] = -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (progress_pipe[0] >= 0) {
|
|
|
|
process_progress(progress_pipe[0]);
|
|
|
|
progress_pipe[0] = -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
q = wait_for_terminate(pid, &status);
|
|
|
|
if (q < 0) {
|
2010-10-19 21:19:12 +02:00
|
|
|
log_error("waitid(): %s", strerror(-q));
|
|
|
|
goto finish;
|
|
|
|
}
|
|
|
|
|
2010-10-19 23:45:18 +02:00
|
|
|
if (status.si_code != CLD_EXITED || (status.si_status & ~1)) {
|
2010-10-19 21:19:12 +02:00
|
|
|
|
2010-10-19 23:45:18 +02:00
|
|
|
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.");
|
2010-10-19 21:19:12 +02:00
|
|
|
|
2011-02-15 00:30:51 +01:00
|
|
|
if (status.si_code == CLD_EXITED && (status.si_status & 2) && root_directory)
|
2010-10-19 21:19:12 +02:00
|
|
|
/* System should be rebooted. */
|
2012-05-04 10:32:47 +02:00
|
|
|
start_target(SPECIAL_REBOOT_TARGET);
|
2011-02-15 00:30:51 +01:00
|
|
|
else if (status.si_code == CLD_EXITED && (status.si_status & 6))
|
2010-10-19 21:19:12 +02:00
|
|
|
/* Some other problem */
|
2012-05-04 10:32:47 +02:00
|
|
|
start_target(SPECIAL_EMERGENCY_TARGET);
|
2011-02-15 00:30:51 +01:00
|
|
|
else {
|
|
|
|
r = EXIT_SUCCESS;
|
|
|
|
log_warning("Ignoring error.");
|
|
|
|
}
|
2010-10-19 21:19:12 +02:00
|
|
|
|
|
|
|
} else
|
|
|
|
r = EXIT_SUCCESS;
|
|
|
|
|
2010-10-19 23:45:18 +02:00
|
|
|
if (status.si_code == CLD_EXITED && (status.si_status & 1))
|
2011-03-25 05:07:20 +01:00
|
|
|
touch("/run/systemd/quotacheck");
|
2010-10-19 21:19:12 +02:00
|
|
|
|
|
|
|
finish:
|
2011-09-01 21:05:06 +02:00
|
|
|
close_pipe(progress_pipe);
|
|
|
|
|
2010-10-19 21:19:12 +02:00
|
|
|
return r;
|
|
|
|
}
|