+++ /dev/null
-/*-*- 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 <errno.h>
-#include <unistd.h>
-#include <fcntl.h>
-#include <sys/file.h>
-#include <sys/stat.h>
-
-#include "sd-bus.h"
-#include "sd-device.h"
-
-#include "util.h"
-#include "special.h"
-#include "bus-util.h"
-#include "bus-error.h"
-#include "bus-common-errors.h"
-#include "device-util.h"
-#include "path-util.h"
-#include "socket-util.h"
-#include "fsckd/fsckd.h"
-
-static bool arg_skip = false;
-static bool arg_force = 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_close_unref_ sd_bus *bus = NULL;
- int r;
-
- assert(target);
-
- r = bus_open_system_systemd(&bus);
- if (r < 0) {
- log_error_errno(r, "Failed to get D-Bus connection: %m");
- 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 '%s'. Ignoring.", value);
-
- } 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 '%s'. Ignoring.", value);
- }
-
- return 0;
-}
-
-static void test_files(void) {
-
-}
-
-static int process_progress(int fd, pid_t fsck_pid, dev_t device_num) {
- _cleanup_fclose_ FILE *f = NULL;
- usec_t last = 0;
- _cleanup_close_ int fsckd_fd = -1;
- static const union sockaddr_union sa = {
- .un.sun_family = AF_UNIX,
- .un.sun_path = FSCKD_SOCKET_PATH,
- };
-
- fsckd_fd = socket(AF_UNIX, SOCK_STREAM | SOCK_CLOEXEC, 0);
- if (fsckd_fd < 0)
- return log_warning_errno(errno, "Cannot open fsckd socket, we won't report fsck progress: %m");
- if (connect(fsckd_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + strlen(sa.un.sun_path)) < 0)
- return log_warning_errno(errno, "Cannot connect to fsckd socket, we won't report fsck progress: %m");
-
- f = fdopen(fd, "r");
- if (!f)
- return log_warning_errno(errno, "Cannot connect to fsck, we won't report fsck progress: %m");
-
- while (!feof(f)) {
- int pass;
- size_t buflen;
- size_t cur, max;
- ssize_t r;
- usec_t t;
- _cleanup_free_ char *device = NULL;
- FsckProgress progress;
- FsckdMessage fsckd_message;
-
- if (fscanf(f, "%i %zu %zu %ms", &pass, &cur, &max, &device) != 4)
- break;
-
- /* Only update once every 50ms */
- t = now(CLOCK_MONOTONIC);
- if (last + 50 * USEC_PER_MSEC > t)
- continue;
-
- last = t;
-
- /* send progress to fsckd */
- progress.devnum = device_num;
- progress.cur = cur;
- progress.max = max;
- progress.pass = pass;
-
- r = send(fsckd_fd, &progress, sizeof(FsckProgress), 0);
- if (r < 0 || (size_t) r < sizeof(FsckProgress))
- log_warning_errno(errno, "Cannot communicate fsck progress to fsckd: %m");
-
- /* get fsckd requests, only read when we have coherent size data */
- r = ioctl(fsckd_fd, FIONREAD, &buflen);
- if (r == 0 && (size_t) buflen >= sizeof(FsckdMessage)) {
- r = recv(fsckd_fd, &fsckd_message, sizeof(FsckdMessage), 0);
- if (r > 0 && fsckd_message.cancel == 1) {
- log_info("Request to cancel fsck from fsckd");
- kill(fsck_pid, SIGTERM);
- }
- }
- }
-
- return 0;
-}
-
-int main(int argc, char *argv[]) {
- const char *cmdline[9];
- int i = 0, r = EXIT_FAILURE, q;
- pid_t pid;
- int progress_rc;
- siginfo_t status;
- _cleanup_device_unref_ sd_device *dev = NULL;
- const char *device, *type;
- bool root_directory;
- _cleanup_close_pair_ int progress_pipe[2] = { -1, -1 };
- char dash_c[sizeof("-C")-1 + DECIMAL_STR_MAX(int) + 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);
-
- q = parse_proc_cmdline(parse_proc_cmdline_item);
- if (q < 0)
- log_warning_errno(q, "Failed to parse kernel command line, ignoring: %m");
-
- test_files();
-
- if (!arg_force && arg_skip) {
- r = 0;
- goto finish;
- }
-
- if (argc > 1) {
- device = argv[1];
- root_directory = false;
-
- if (stat(device, &st) < 0) {
- r = log_error_errno(errno, "Failed to stat '%s': %m", device);
- goto finish;
- }
-
- r = sd_device_new_from_devnum(&dev, 'b', st.st_rdev);
- if (r < 0) {
- log_error_errno(r, "Failed to detect device %s: %m", device);
- goto finish;
- }
- } else {
- struct timespec times[2];
-
- /* Find root device */
-
- if (stat("/", &st) < 0) {
- r = log_error_errno(errno, "Failed to stat() the root directory: %m");
- goto finish;
- }
-
- /* Virtual root devices don't need an fsck */
- if (major(st.st_dev) == 0) {
- log_debug("Root directory is virtual, skipping check.");
- r = 0;
- goto finish;
- }
-
- /* 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.");
- r = 0;
- goto finish;
- }
-
- r = sd_device_new_from_devnum(&dev, 'b', st.st_dev);
- if (r < 0) {
- log_error_errno(r, "Failed to detect root device: %m");
- goto finish;
- }
-
- r = sd_device_get_devname(dev, &device);
- if (r < 0) {
- log_error_errno(r, "Failed to detect device node of root directory: %m");
- r = -ENXIO;
- goto finish;
- }
-
- root_directory = true;
- }
-
- r = sd_device_get_property_value(dev, "ID_FS_TYPE", &type);
- if (r >= 0) {
- r = fsck_exists(type);
- if (r == -ENOENT) {
- log_info("fsck.%s doesn't exist, not checking file system on %s", type, device);
- r = 0;
- goto finish;
- } else if (r < 0)
- log_warning_errno(r, "fsck.%s cannot be used for %s: %m", type, device);
- }
-
- if (pipe(progress_pipe) < 0) {
- r = log_error_errno(errno, "pipe(): %m");
- goto finish;
- }
-
- cmdline[i++] = "/sbin/fsck";
- cmdline[i++] = arg_repair;
- cmdline[i++] = "-T";
-
- /*
- * Since util-linux v2.25 fsck uses /run/fsck/<diskname>.lock files.
- * The previous versions use flock for the device and conflict with
- * udevd, see 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";
-
- xsprintf(dash_c, "-C%i", progress_pipe[1]);
- cmdline[i++] = dash_c;
-
- cmdline[i++] = device;
- cmdline[i++] = NULL;
-
- pid = fork();
- if (pid < 0) {
- r = log_error_errno(errno, "fork(): %m");
- goto finish;
- } else if (pid == 0) {
- /* Child */
- progress_pipe[0] = safe_close(progress_pipe[0]);
- execv(cmdline[0], (char**) cmdline);
- _exit(8); /* Operational error */
- }
-
- progress_pipe[1] = safe_close(progress_pipe[1]);
-
- progress_rc = process_progress(progress_pipe[0], pid, st.st_rdev);
- progress_pipe[0] = -1;
-
- r = wait_for_terminate(pid, &status);
- if (r < 0) {
- log_error_errno(r, "waitid(): %m");
- goto finish;
- }
-
- if (status.si_code != CLD_EXITED || (status.si_status & ~1) || progress_rc != 0) {
-
- /* cancel will kill fsck (but process_progress returns 0) */
- if ((progress_rc != 0 && 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 if (progress_rc != 0)
- log_error("fsck failed due to unknown reason.");
-
- r = -EINVAL;
-
- 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 = 0;
- if (progress_rc != 0)
- log_warning("Ignoring error.");
- }
-
- } else
- r = 0;
-
- if (status.si_code == CLD_EXITED && (status.si_status & 1))
- touch("/run/systemd/quotacheck");
-
-finish:
- return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
-}
~ianmdlvl / elogind.git / blobdiff