+++ /dev/null
-/*-*- 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;
-}
~ianmdlvl / elogind.git / blobdiff