-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
/***
This file is part of systemd.
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 <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 "util.h"
-#include "special.h"
-#include "bus-util.h"
-#include "bus-error.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 "fsckd/fsckd.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) {
- _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
- _cleanup_bus_close_unref_ sd_bus *bus = NULL;
+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_open_system_systemd(&bus);
+ r = bus_connect_system_systemd(&bus);
if (r < 0) {
log_error_errno(r, "Failed to get D-Bus connection: %m");
return;
"StartUnitReplace",
&error,
NULL,
- "sss", "basic.target", target, "replace");
+ "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));
+ log_error("Failed to start unit: %s", bus_error_message(&error, r));
}
-static int parse_proc_cmdline_item(const char *key, const char *value) {
+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(key, "fsck.mode")) {
+
+ if (proc_cmdline_value_missing(key, value))
+ return 0;
if (streq(value, "auto"))
arg_force = arg_skip = false;
else
log_warning("Invalid fsck.mode= parameter '%s'. Ignoring.", value);
- } else if (streq(key, "fsck.repair") && value) {
+ } else if (streq(key, "fsck.repair")) {
+
+ if (proc_cmdline_value_missing(key, value))
+ return 0;
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);
+ 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
+#if 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;
static void test_files(void) {
-#ifdef HAVE_SYSV_COMPAT
+#if 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;
}
#endif
+ arg_show_progress = access("/run/systemd/show-status", F_OK) >= 0;
}
-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,
+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
};
- 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;
+ 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;
- FsckProgress progress;
- FsckdMessage fsckd_message;
+ double p;
+ usec_t t;
- if (fscanf(f, "%i %zu %zu %ms", &pass, &cur, &max, &device) != 4)
+ 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);
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);
- }
- }
+ 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;
}
- return 0;
+ 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(IN_SET(errno, ECONNREFUSED, 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[]) {
- 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;
+ _cleanup_close_pair_ int progress_pipe[2] = { -1, -1 };
+ _cleanup_(sd_device_unrefp) 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];
+ siginfo_t status;
struct stat st;
+ int r;
+ pid_t pid;
if (argc > 2) {
log_error("This program expects one or no arguments.");
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");
+ r = proc_cmdline_parse(parse_proc_cmdline_item, NULL, PROC_CMDLINE_STRIP_RD_PREFIX);
+ if (r < 0)
+ log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m");
test_files();
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);
+ 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;
}
log_error_errno(r, "Failed to detect device %s: %m", device);
goto finish;
}
+
+ root_directory = false;
} else {
struct timespec times[2];
/* Virtual root devices don't need an fsck */
if (major(st.st_dev) == 0) {
- log_debug("Root directory is virtual, skipping check.");
+ 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;
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;
}
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;
+ 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;
- } 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;
+ if (arg_show_progress) {
+ 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) {
+ }
+ 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(8); /* Operational error */
+ _exit(FSCK_OPERATIONAL_ERROR);
}
progress_pipe[1] = safe_close(progress_pipe[1]);
-
- progress_rc = process_progress(progress_pipe[0], pid, st.st_rdev);
+ (void) process_progress(progress_pipe[0]);
progress_pipe[0] = -1;
r = wait_for_terminate(pid, &status);
goto finish;
}
- if (status.si_code != CLD_EXITED || (status.si_status & ~1) || progress_rc != 0) {
+ if (status.si_code != CLD_EXITED || (status.si_status & ~1)) {
- /* cancel will kill fsck (but process_progress returns 0) */
- if ((progress_rc != 0 && status.si_code == CLD_KILLED) || status.si_code == CLD_DUMPED)
+ 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 if (progress_rc != 0)
+ else
log_error("fsck failed due to unknown reason.");
r = -EINVAL;
- if (status.si_code == CLD_EXITED && (status.si_status & 2) && root_directory)
+ if (status.si_code == CLD_EXITED && (status.si_status & FSCK_SYSTEM_SHOULD_REBOOT) && root_directory)
/* System should be rebooted. */
- start_target(SPECIAL_REBOOT_TARGET);
- else if (status.si_code == CLD_EXITED && (status.si_status & 6))
+ 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);
+ start_target(SPECIAL_EMERGENCY_TARGET, "replace");
else {
+ log_warning("Ignoring error.");
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");
+ 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;
projects / thirdparty / systemd.git / blobdiff