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-rw-r--r--src/fsck/fsck.c487
1 files changed, 0 insertions, 487 deletions
diff --git a/src/fsck/fsck.c b/src/fsck/fsck.c
deleted file mode 100644
index be25c6a2b2..0000000000
--- a/src/fsck/fsck.c
+++ /dev/null
@@ -1,487 +0,0 @@
-/***
- 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 <errno.h>
-#include <fcntl.h>
-#include <stdbool.h>
-#include <stdio.h>
-#include <sys/file.h>
-#include <sys/prctl.h>
-#include <sys/stat.h>
-#include <unistd.h>
-
-#include "sd-bus.h"
-#include "sd-device.h"
-
-#include "alloc-util.h"
-#include "bus-common-errors.h"
-#include "bus-error.h"
-#include "bus-util.h"
-#include "device-util.h"
-#include "fd-util.h"
-#include "fs-util.h"
-#include "parse-util.h"
-#include "path-util.h"
-#include "proc-cmdline.h"
-#include "process-util.h"
-#include "signal-util.h"
-#include "socket-util.h"
-#include "special.h"
-#include "stdio-util.h"
-#include "util.h"
-
-/* exit codes as defined in fsck(8) */
-enum {
- FSCK_SUCCESS = 0,
- FSCK_ERROR_CORRECTED = 1,
- FSCK_SYSTEM_SHOULD_REBOOT = 2,
- FSCK_ERRORS_LEFT_UNCORRECTED = 4,
- FSCK_OPERATIONAL_ERROR = 8,
- FSCK_USAGE_OR_SYNTAX_ERROR = 16,
- FSCK_USER_CANCELLED = 32,
- FSCK_SHARED_LIB_ERROR = 128,
-};
-
-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, const char *mode) {
- _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
- int r;
-
- assert(target);
-
- r = bus_connect_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, mode);
-
- /* 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, void *data) {
- int r;
-
- assert(key);
-
- 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 {
- r = parse_boolean(value);
- if (r > 0)
- arg_repair = "-y";
- else if (r == 0)
- arg_repair = "-n";
- else
- log_warning("Invalid fsck.repair= parameter '%s'. Ignoring.", value);
- }
- }
-
-#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
-
- arg_show_progress = access("/run/systemd/show-status", F_OK) >= 0;
-}
-
-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, r;
-
- /* No progress pipe to process? Then we are a NOP. */
- if (fd < 0)
- return 0;
-
- f = fdopen(fd, "re");
- if (!f) {
- safe_close(fd);
- return -errno;
- }
-
- console = fopen("/dev/console", "we");
- if (!console)
- return -ENOMEM;
-
- for (;;) {
- 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) {
-
- if (ferror(f))
- r = log_warning_errno(errno, "Failed to read from progress pipe: %m");
- else if (feof(f))
- r = 0;
- else {
- log_warning("Failed to parse progress pipe data");
- r = -EBADMSG;
- }
- 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 r;
-}
-
-static int fsck_progress_socket(void) {
- static const union sockaddr_union sa = {
- .un.sun_family = AF_UNIX,
- .un.sun_path = "/run/systemd/fsck.progress",
- };
-
- int fd, r;
-
- fd = socket(AF_UNIX, SOCK_STREAM, 0);
- if (fd < 0)
- return log_warning_errno(errno, "socket(): %m");
-
- if (connect(fd, &sa.sa, SOCKADDR_UN_LEN(sa.un)) < 0) {
- r = log_full_errno(errno == ECONNREFUSED || errno == ENOENT ? LOG_DEBUG : LOG_WARNING,
- errno, "Failed to connect to progress socket %s, ignoring: %m", sa.un.sun_path);
- safe_close(fd);
- return r;
- }
-
- return fd;
-}
-
-int main(int argc, char *argv[]) {
- _cleanup_close_pair_ int progress_pipe[2] = { -1, -1 };
- _cleanup_(sd_device_unrefp) sd_device *dev = NULL;
- const char *device, *type;
- bool root_directory;
- siginfo_t status;
- struct stat st;
- int r;
- pid_t pid;
-
- 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);
-
- r = parse_proc_cmdline(parse_proc_cmdline_item, NULL, true);
- if (r < 0)
- log_warning_errno(r, "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];
-
- if (stat(device, &st) < 0) {
- r = log_error_errno(errno, "Failed to stat %s: %m", device);
- goto finish;
- }
-
- if (!S_ISBLK(st.st_mode)) {
- log_error("%s is not a block device.", device);
- r = -EINVAL;
- 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;
- }
-
- root_directory = false;
- } 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 or btrfs, 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");
- 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 < 0)
- log_warning_errno(r, "Couldn't detect if fsck.%s may be used for %s, proceeding: %m", type, device);
- else if (r == 0) {
- log_info("fsck.%s doesn't exist, not checking file system on %s.", type, device);
- goto finish;
- }
- }
-
- if (arg_show_progress) {
- if (pipe(progress_pipe) < 0) {
- r = log_error_errno(errno, "pipe(): %m");
- goto finish;
- }
- }
-
- pid = fork();
- if (pid < 0) {
- r = log_error_errno(errno, "fork(): %m");
- goto finish;
- }
- if (pid == 0) {
- char dash_c[sizeof("-C")-1 + DECIMAL_STR_MAX(int) + 1];
- int progress_socket = -1;
- const char *cmdline[9];
- int i = 0;
-
- /* Child */
-
- (void) reset_all_signal_handlers();
- (void) reset_signal_mask();
- assert_se(prctl(PR_SET_PDEATHSIG, SIGTERM) == 0);
-
- /* Close the reading side of the progress pipe */
- progress_pipe[0] = safe_close(progress_pipe[0]);
-
- /* Try to connect to a progress management daemon, if there is one */
- progress_socket = fsck_progress_socket();
- if (progress_socket >= 0) {
- /* If this worked we close the progress pipe early, and just use the socket */
- progress_pipe[1] = safe_close(progress_pipe[1]);
- xsprintf(dash_c, "-C%i", progress_socket);
- } else if (progress_pipe[1] >= 0) {
- /* Otherwise if we have the progress pipe to our own local handle, we use it */
- xsprintf(dash_c, "-C%i", progress_pipe[1]);
- } else
- dash_c[0] = 0;
-
- 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";
-
- if (!isempty(dash_c))
- cmdline[i++] = dash_c;
-
- cmdline[i++] = device;
- cmdline[i++] = NULL;
-
- execv(cmdline[0], (char**) cmdline);
- _exit(FSCK_OPERATIONAL_ERROR);
- }
-
- progress_pipe[1] = safe_close(progress_pipe[1]);
- (void) process_progress(progress_pipe[0]);
- 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)) {
-
- 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.");
-
- r = -EINVAL;
-
- if (status.si_code == CLD_EXITED && (status.si_status & FSCK_SYSTEM_SHOULD_REBOOT) && root_directory)
- /* System should be rebooted. */
- start_target(SPECIAL_REBOOT_TARGET, "replace-irreversibly");
- else if (status.si_code == CLD_EXITED && (status.si_status & (FSCK_SYSTEM_SHOULD_REBOOT | FSCK_ERRORS_LEFT_UNCORRECTED)))
- /* Some other problem */
- start_target(SPECIAL_EMERGENCY_TARGET, "replace");
- else {
- log_warning("Ignoring error.");
- r = 0;
- }
-
- } else
- r = 0;
-
- if (status.si_code == CLD_EXITED && (status.si_status & FSCK_ERROR_CORRECTED))
- (void) touch("/run/systemd/quotacheck");
-
-finish:
- return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-01 12:19:31 +0000