diff options
Diffstat (limited to 'src/fsck.c')
-rw-r--r-- | src/fsck.c | 406 |
1 files changed, 0 insertions, 406 deletions
diff --git a/src/fsck.c b/src/fsck.c deleted file mode 100644 index f25ec49442..0000000000 --- a/src/fsck.c +++ /dev/null @@ -1,406 +0,0 @@ -/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ - -/*** - This file is part of systemd. - - Copyright 2010 Lennart Poettering - - 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 <libudev.h> -#include <dbus/dbus.h> - -#include "util.h" -#include "dbus-common.h" -#include "special.h" -#include "bus-errors.h" -#include "virt.h" - -static bool arg_skip = false; -static bool arg_force = false; -static bool arg_show_progress = false; - -static void start_target(const char *target, bool isolate) { - DBusMessage *m = NULL, *reply = NULL; - DBusError error; - const char *mode, *basic_target = "basic.target"; - DBusConnection *bus = NULL; - - assert(target); - - dbus_error_init(&error); - - if (bus_connect(DBUS_BUS_SYSTEM, &bus, NULL, &error) < 0) { - log_error("Failed to get D-Bus connection: %s", bus_error_message(&error)); - goto finish; - } - - if (isolate) - mode = "isolate"; - else - mode = "replace"; - - log_info("Running request %s/start/%s", target, mode); - - if (!(m = dbus_message_new_method_call("org.freedesktop.systemd1", "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "StartUnitReplace"))) { - log_error("Could not allocate message."); - goto finish; - } - - /* Start these units only if we can replace base.target with it */ - - if (!dbus_message_append_args(m, - DBUS_TYPE_STRING, &basic_target, - DBUS_TYPE_STRING, &target, - DBUS_TYPE_STRING, &mode, - DBUS_TYPE_INVALID)) { - log_error("Could not attach target and flag information to message."); - goto finish; - } - - if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { - - /* Don't print a warning if we aren't called during - * startup */ - if (!dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_JOB)) - log_error("Failed to start unit: %s", bus_error_message(&error)); - - goto finish; - } - -finish: - if (m) - dbus_message_unref(m); - - if (reply) - dbus_message_unref(reply); - - if (bus) { - dbus_connection_flush(bus); - dbus_connection_close(bus); - dbus_connection_unref(bus); - } - - dbus_error_free(&error); -} - -static int parse_proc_cmdline(void) { - char *line, *w, *state; - int r; - size_t l; - - if (detect_container(NULL) > 0) - return 0; - - if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) { - log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); - return 0; - } - - FOREACH_WORD_QUOTED(w, l, line, state) { - - if (strneq(w, "fsck.mode=auto", l)) - arg_force = arg_skip = false; - else if (strneq(w, "fsck.mode=force", l)) - arg_force = true; - else if (strneq(w, "fsck.mode=skip", l)) - arg_skip = true; - else if (startswith(w, "fsck.mode")) - log_warning("Invalid fsck.mode= parameter. Ignoring."); -#if defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_MAGEIA) - else if (strneq(w, "fastboot", l)) - arg_skip = true; - else if (strneq(w, "forcefsck", l)) - arg_force = true; -#endif - } - - free(line); - return 0; -} - -static void test_files(void) { - if (access("/fastboot", F_OK) >= 0) - arg_skip = true; - - if (access("/forcefsck", F_OK) >= 0) - arg_force = true; - - 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) { - FILE *f, *console; - usec_t last = 0; - bool locked = false; - int clear = 0; - - f = fdopen(fd, "r"); - if (!f) { - close_nointr_nofail(fd); - return -errno; - } - - console = fopen("/dev/console", "w"); - if (!console) { - fclose(f); - return -ENOMEM; - } - - while (!feof(f)) { - int pass, m; - unsigned long cur, max; - char *device; - 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) { - free(device); - continue; - } - - locked = true; - } - - /* Only update once every 50ms */ - t = now(CLOCK_MONOTONIC); - if (last + 50 * USEC_PER_MSEC > t) { - free(device); - continue; - } - - last = t; - - p = percent(pass, cur, max); - fprintf(console, "\r%s: fsck %3.1f%% complete...\r%n", device, p, &m); - fflush(console); - - free(device); - - 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); - } - - fclose(f); - fclose(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; - struct udev *udev = NULL; - struct udev_device *udev_device = NULL; - const char *device; - bool root_directory; - int progress_pipe[2] = { -1, -1 }; - char dash_c[2+10+1]; - - 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(); - test_files(); - - if (!arg_force && arg_skip) - return 0; - - if (argc > 1) { - device = argv[1]; - root_directory = false; - } else { - struct stat st; - struct timespec times[2]; - - /* Find root device */ - - if (stat("/", &st) < 0) { - log_error("Failed to stat() the root directory: %m"); - goto finish; - } - - /* Virtual root devices don't need an fsck */ - if (major(st.st_dev) == 0) - return 0; - - /* 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 0; - } - - if (!(udev = udev_new())) { - log_error("Out of memory"); - goto finish; - } - - if (!(udev_device = udev_device_new_from_devnum(udev, 'b', st.st_dev))) { - log_error("Failed to detect root device."); - goto finish; - } - - if (!(device = udev_device_get_devnode(udev_device))) { - log_error("Failed to detect device node of root directory."); - goto finish; - } - - root_directory = true; - } - - if (arg_show_progress) - if (pipe(progress_pipe) < 0) { - log_error("pipe(): %m"); - goto finish; - } - - cmdline[i++] = "/sbin/fsck"; - cmdline[i++] = "-a"; - cmdline[i++] = "-T"; - 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) - close_nointr_nofail(progress_pipe[0]); - execv(cmdline[0], (char**) cmdline); - _exit(8); /* Operational error */ - } - - 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) { - 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, false); - else if (status.si_code == CLD_EXITED && (status.si_status & 6)) - /* Some other problem */ - start_target(SPECIAL_EMERGENCY_TARGET, true); - 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: - if (udev_device) - udev_device_unref(udev_device); - - if (udev) - udev_unref(udev); - - close_pipe(progress_pipe); - - return r; -} |