move all tools to subdirs

1 files changed, 406 insertions, 0 deletions

diff --git a/src/fsck/fsck.c b/src/fsck/fsck.c
new file mode 100644
index 0000000000..f25ec49442
--- /dev/null
+++ b/src/fsck/fsck.c
@@ -0,0 +1,406 @@
+/*-*- 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;
+}