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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 13:00:48 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 13:00:48 +0000
commitf542925b701989ba6eed7b08b5226d4021b9b85f (patch)
tree57e14731f21a6d663326d30b7b88736e9d51c420 /debian/patches/debian/fsckd-daemon-for-inter-fsckd-communication.patch
parentAdding upstream version 247.3. (diff)
downloadsystemd-f542925b701989ba6eed7b08b5226d4021b9b85f.tar.xz
systemd-f542925b701989ba6eed7b08b5226d4021b9b85f.zip
Adding debian version 247.3-7+deb11u4.debian/247.3-7+deb11u4
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'debian/patches/debian/fsckd-daemon-for-inter-fsckd-communication.patch')
-rw-r--r--debian/patches/debian/fsckd-daemon-for-inter-fsckd-communication.patch1065
1 files changed, 1065 insertions, 0 deletions
diff --git a/debian/patches/debian/fsckd-daemon-for-inter-fsckd-communication.patch b/debian/patches/debian/fsckd-daemon-for-inter-fsckd-communication.patch
new file mode 100644
index 0000000..6e61355
--- /dev/null
+++ b/debian/patches/debian/fsckd-daemon-for-inter-fsckd-communication.patch
@@ -0,0 +1,1065 @@
+From: Didier Roche <didrocks@ubuntu.com>
+Date: Fri, 22 May 2015 13:04:38 +0200
+Subject: fsckd daemon for inter-fsckd communication
+
+Global logic:
+Add systemd-fsckd multiplexer which accepts multiple (via systemd-fsck's
+/run/systemd/fsck.progress socket) fsck instances to connect to it and sends
+progress report. systemd-fsckd then computes and writes to /dev/console the
+number of devices currently being checked and the minimum fsck progress.
+
+Plymouth and user interaction:
+Forward the progress to plymouth and support canellation of in progress fsck.
+Try to connect and send to plymouth (if running) some checked report progress,
+using direct plymouth protocole.
+
+Update message is the following:
+fsckd:<num_devices>:<progress>:<string>
+* num_devices corresponds to the current number of devices being checked (int)
+* progress corresponds to the current minimum percentage of all devices being
+ checked (float, from 0 to 100)
+* string is a translated message ready to be displayed by the plymouth theme
+ displaying the information above. It can be overridden by plymouth themes
+ supporting i18n.
+
+Grab in fsckd plymouth watch key Control+C, and propagate this cancel request
+to systemd-fsck which will terminate fsck.
+
+Send a message to signal to user what key we are grabbing for fsck cancel.
+
+Message is: fsckd-cancel-msg:<string>
+Where string is a translated string ready to be displayed by the plymouth theme
+indicating that Control+C can be used to cancel current checks. It can be
+overridden (matching only fsckd-cancel-msg prefix) for themes supporting i18n.
+
+Misc:
+systemd-fsckd stops on idle when no fsck is connected.
+Add man page explaining the plymouth theme protocol, usage of the daemon
+as well as the socket activation part. Adapt existing fsck man page.
+
+Note that fsckd had lived in the upstream tree for a while, but was removed.
+More information at
+http://lists.freedesktop.org/archives/systemd-devel/2015-April/030175.html
+-
+---
+ man/rules/meson.build | 1 +
+ man/systemd-fsckd.service.xml | 162 +++++++++
+ meson.build | 9 +
+ po/POTFILES.in | 1 +
+ src/fsckd/fsckd.c | 699 +++++++++++++++++++++++++++++++++++++
+ units/meson.build | 2 +
+ units/systemd-fsck-root.service.in | 2 +
+ units/systemd-fsck@.service.in | 3 +-
+ units/systemd-fsckd.service.in | 17 +
+ units/systemd-fsckd.socket | 15 +
+ 10 files changed, 910 insertions(+), 1 deletion(-)
+ create mode 100644 man/systemd-fsckd.service.xml
+ create mode 100644 src/fsckd/fsckd.c
+ create mode 100644 units/systemd-fsckd.service.in
+ create mode 100644 units/systemd-fsckd.socket
+
+diff --git a/man/rules/meson.build b/man/rules/meson.build
+index cacbbd7..285f5b8 100644
+--- a/man/rules/meson.build
++++ b/man/rules/meson.build
+@@ -840,6 +840,7 @@ manpages = [
+ '8',
+ ['systemd-fsck', 'systemd-fsck-root.service'],
+ ''],
++ ['systemd-fsckd.service', '8', ['systemd-fsckd.socket', 'systemd-fsckd'], ''],
+ ['systemd-fstab-generator', '8', [], ''],
+ ['systemd-getty-generator', '8', [], ''],
+ ['systemd-gpt-auto-generator', '8', [], 'HAVE_BLKID'],
+diff --git a/man/systemd-fsckd.service.xml b/man/systemd-fsckd.service.xml
+new file mode 100644
+index 0000000..b7ad58d
+--- /dev/null
++++ b/man/systemd-fsckd.service.xml
+@@ -0,0 +1,162 @@
++<?xml version="1.0"?>
++<!--*-nxml-*-->
++<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
++<!--
++ This file is part of systemd.
++
++ Copyright 2015 Canonical
++
++ 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/>.
++-->
++<refentry id="systemd-fsckd.service" xmlns:xi="http://www.w3.org/2001/XInclude">
++
++ <refentryinfo>
++ <title>systemd-fsckd.service</title>
++ <productname>systemd</productname>
++
++ <authorgroup>
++ <author>
++ <contrib>Developer</contrib>
++ <firstname>Didier</firstname>
++ <surname>Roche</surname>
++ <email>didrocks@ubuntu.com</email>
++ </author>
++ </authorgroup>
++ </refentryinfo>
++
++ <refmeta>
++ <refentrytitle>systemd-fsckd.service</refentrytitle>
++ <manvolnum>8</manvolnum>
++ </refmeta>
++
++ <refnamediv>
++ <refname>systemd-fsckd.service</refname>
++ <refname>systemd-fsckd.socket</refname>
++ <refname>systemd-fsckd</refname>
++ <refpurpose>File system check progress reporting</refpurpose>
++ </refnamediv>
++
++ <refsynopsisdiv>
++ <para><filename>systemd-fsckd.service</filename></para>
++ <para><filename>systemd-fsckd.socket</filename></para>
++ <para><filename>/usr/lib/systemd/systemd-fsckd</filename></para>
++ </refsynopsisdiv>
++
++ <refsect1>
++ <title>Description</title>
++
++ <para><filename>systemd-fsckd.service</filename> is a service responsible
++ for receiving file system check progress, and communicating some
++ consolidated data to console and plymouth (if running). It also handles
++ possible check cancellations.</para>
++
++ <para><command>systemd-fsckd</command> receives messages about file
++ system check progress from <command>fsck</command> through an
++ UNIX domain socket. It can display the progress of the least advanced
++ fsck as well as the total number of devices being checked in parallel
++ to the console. It will also send progress messages to plymouth.
++ Both the raw data and translated messages are sent, so compiled
++ plymouth themes can use the raw data to display custom messages, and
++ scripted themes, not supporting i18n, can display the translated
++ versions.</para>
++
++ <para><command>systemd-fsckd</command> will instruct plymouth to grab
++ Control+C keypresses. When the key is pressed, running checks will be
++ terminated. It will also cancel any newly connected fsck instances for
++ the lifetime of <filename>systemd-fsckd</filename>.</para>
++ </refsect1>
++
++ <refsect1>
++ <title>Protocol for communication with plymouth</title>
++
++ <para><filename>systemd-fsckd</filename> passes the
++ following messages to the theme:</para>
++
++ <para>Progress update, sent as a plymouth update message:
++ <literal>fsckd:&lt;num_devices&gt;:&lt;progress&gt;:&lt;string&gt;</literal>
++ <variablelist>
++ <varlistentry>
++ <term><literal>&lt;num_devices&gt;</literal></term>
++ <listitem><para>the current number of devices
++ being checked (int)</para></listitem>
++ </varlistentry>
++ <varlistentry>
++ <term><literal>&lt;progress&gt;</literal></term>
++ <listitem><para>the current minimum percentage of
++ all devices being checking (float, from 0 to 100)</para></listitem>
++ </varlistentry>
++ <varlistentry>
++ <term><literal>&lt;string&gt;</literal></term>
++ <listitem><para>a translated message ready to be displayed
++ by the plymouth theme displaying the data above. It can be overridden
++ by themes supporting i18n.</para></listitem>
++ </varlistentry>
++ </variablelist>
++ </para>
++
++ <para>Cancel message, sent as a traditional plymouth message:
++ <literal>fsckd-cancel-msg:&lt;string&gt;</literal>
++ <variablelist>
++ <varlistentry>
++ <term><literal>&lt;strings&gt;</literal></term>
++ <listitem><para>a translated string ready to be displayed
++ by the plymouth theme indicating that Control+C can be used to cancel
++ current checks. It can be overridden (matching only
++ <literal>fsckd-cancel-msg</literal> prefix)
++ by themes supporting i18n.</para></listitem>
++ </varlistentry>
++ </variablelist>
++ </para>
++ </refsect1>
++
++ <refsect1>
++ <title>Options</title>
++
++ <para>The following options are understood:</para>
++
++ <variablelist>
++ <xi:include href="standard-options.xml" xpointer="help" />
++ <xi:include href="standard-options.xml" xpointer="version" />
++ </variablelist>
++
++ </refsect1>
++
++ <refsect1>
++ <title>Exit status</title>
++
++ <para>On success, 0 is returned, a non-zero failure
++ code otherwise. Note that the daemon stays idle for
++ a while to accept new <filename>fsck</filename>
++ connections before exiting.</para>
++ </refsect1>
++
++ <refsect1>
++ <title>See Also</title>
++ <para>
++ <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
++ <citerefentry><refentrytitle>systemd-fsck</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
++ <citerefentry project='man-pages'><refentrytitle>fsck</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
++ <citerefentry><refentrytitle>systemd-quotacheck.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
++ <citerefentry project='man-pages'><refentrytitle>fsck.btrfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
++ <citerefentry project='man-pages'><refentrytitle>fsck.cramfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
++ <citerefentry project='man-pages'><refentrytitle>fsck.ext4</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
++ <citerefentry project='man-pages'><refentrytitle>fsck.fat</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
++ <citerefentry project='man-pages'><refentrytitle>fsck.hfsplus</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
++ <citerefentry project='man-pages'><refentrytitle>fsck.minix</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
++ <citerefentry project='man-pages'><refentrytitle>fsck.ntfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
++ <citerefentry project='man-pages'><refentrytitle>fsck.xfs</refentrytitle><manvolnum>8</manvolnum></citerefentry>
++ </para>
++ </refsect1>
++
++</refentry>
+diff --git a/meson.build b/meson.build
+index cf93f38..e33b729 100644
+--- a/meson.build
++++ b/meson.build
+@@ -2895,6 +2895,15 @@ executable(
+ install : true,
+ install_dir : rootlibexecdir)
+
++executable(
++ 'systemd-fsckd',
++ 'src/fsckd/fsckd.c',
++ include_directories : includes,
++ link_with : [libshared],
++ install_rpath : rootlibexecdir,
++ install : true,
++ install_dir : rootlibexecdir)
++
+ executable(
+ 'systemd-sleep',
+ 'src/sleep/sleep.c',
+diff --git a/po/POTFILES.in b/po/POTFILES.in
+index 0346a19..5ea2444 100644
+--- a/po/POTFILES.in
++++ b/po/POTFILES.in
+@@ -10,3 +10,4 @@ src/portable/org.freedesktop.portable1.policy
+ src/resolve/org.freedesktop.resolve1.policy
+ src/timedate/org.freedesktop.timedate1.policy
+ src/core/dbus-unit.c
++src/fsckd/fsckd.c
+diff --git a/src/fsckd/fsckd.c b/src/fsckd/fsckd.c
+new file mode 100644
+index 0000000..4af8e45
+--- /dev/null
++++ b/src/fsckd/fsckd.c
+@@ -0,0 +1,699 @@
++/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
++
++/***
++ This file is part of systemd.
++
++ Copyright 2015 Canonical
++
++ Author:
++ Didier Roche <didrocks@ubuntu.com>
++
++ 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 <getopt.h>
++#include <errno.h>
++#include <libintl.h>
++#include <math.h>
++#include <stdbool.h>
++#include <stdlib.h>
++#include <stdio.h>
++#include <sys/socket.h>
++#include <sys/types.h>
++#include <sys/un.h>
++#include <unistd.h>
++
++#include "sd-daemon.h"
++#include "build.h"
++#include "def.h"
++#include "sd-event.h"
++#include "log.h"
++#include "list.h"
++#include "macro.h"
++#include "socket-netlink.h"
++#include "socket-util.h"
++#include "fd-util.h"
++#include "string-util.h"
++#include "io-util.h"
++#include "util.h"
++#include "alloc-util.h"
++#include "locale-util.h"
++
++#define FSCKD_SOCKET_PATH "/run/systemd/fsck.progress"
++#define IDLE_TIME_SECONDS 30
++#define PLYMOUTH_REQUEST_KEY "K\2\2\3"
++#define CLIENTS_MAX 128
++
++struct Manager;
++
++typedef struct Client {
++ struct Manager *manager;
++ char *device_name;
++ /* device id refers to "fd <fd>" until it gets a name as "device_name" */
++ char *device_id;
++
++ pid_t fsck_pid;
++ FILE *fsck_f;
++
++ size_t cur;
++ size_t max;
++ int pass;
++
++ double percent;
++
++ bool cancelled;
++ bool bad_input;
++
++ sd_event_source *event_source;
++
++ LIST_FIELDS(struct Client, clients);
++} Client;
++
++typedef struct Manager {
++ sd_event *event;
++
++ LIST_HEAD(Client, clients);
++ unsigned n_clients;
++
++ size_t clear;
++
++ int connection_fd;
++ sd_event_source *connection_event_source;
++
++ bool show_status_console;
++
++ double percent;
++ int numdevices;
++
++ int plymouth_fd;
++ sd_event_source *plymouth_event_source;
++ bool plymouth_cancel_sent;
++
++ bool cancel_requested;
++} Manager;
++
++static void client_free(Client *c);
++static void manager_free(Manager *m);
++
++DEFINE_TRIVIAL_CLEANUP_FUNC(Client*, client_free);
++DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
++
++static bool plymouth_running(void) {
++ return access("/run/plymouth/pid", F_OK) >= 0;
++}
++
++static int manager_write_console(Manager *m, const char *message) {
++ _cleanup_fclose_ FILE *console = NULL;
++ int l;
++ size_t j;
++
++ assert(m);
++
++ if (!m->show_status_console)
++ return 0;
++
++ /* Nothing to display, and nothing to clear: return now. */
++ if (message == NULL && m->clear == 0) {
++ return 0;
++ }
++
++ /* Reduce the SAK window by opening and closing console on every request */
++ console = fopen("/dev/console", "we");
++ if (!console)
++ return -errno;
++
++ if (message) {
++ fprintf(console, "\r%s\r%n", message, &l);
++ if (m->clear < (size_t)l)
++ m->clear = (size_t)l;
++ } else {
++ fputc('\r', console);
++ for (j = 0; j < m->clear; j++)
++ fputc(' ', console);
++ fputc('\r', console);
++ }
++ fflush(console);
++
++ return 0;
++}
++
++static double compute_percent(int pass, size_t cur, size_t max) {
++ /* Values stolen from e2fsck */
++
++ static const double 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 pass_table[pass-1] +
++ (pass_table[pass] - pass_table[pass-1]) *
++ (double) cur / max;
++}
++
++static int client_request_cancel(Client *c) {
++ assert(c);
++
++ if (c->cancelled)
++ return 0;
++
++ log_info("Request to cancel fsck for %s from fsckd", c->device_id);
++ if (kill(c->fsck_pid, SIGTERM) < 0) {
++ /* ignore the error and consider that cancel was sent if fsck just exited */
++ if (errno != ESRCH)
++ return log_error_errno(errno, "Cannot send cancel to fsck for %s: %m", c->device_id);
++ }
++
++ c->cancelled = true;
++ return 1;
++}
++
++static void client_free(Client *c) {
++ assert(c);
++
++ if (c->manager) {
++ LIST_REMOVE(clients, c->manager->clients, c);
++ c->manager->n_clients--;
++ }
++
++ sd_event_source_unref(c->event_source);
++ fclose(c->fsck_f);
++ if (c->device_name)
++ free(c->device_name);
++ if (c->device_id)
++ free(c->device_id);
++ free(c);
++}
++
++static void manager_disconnect_plymouth(Manager *m) {
++ assert(m);
++
++ m->plymouth_event_source = sd_event_source_unref(m->plymouth_event_source);
++ m->plymouth_fd = safe_close(m->plymouth_fd);
++ m->plymouth_cancel_sent = false;
++}
++
++static int manager_plymouth_feedback_handler(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
++ Manager *m = userdata;
++ Client *current;
++ char buffer[6];
++ ssize_t l;
++
++ assert(m);
++
++ l = read(m->plymouth_fd, buffer, sizeof(buffer));
++ if (l < 0) {
++ log_warning_errno(errno, "Got error while reading from plymouth: %m");
++ manager_disconnect_plymouth(m);
++ return -errno;
++ }
++ if (l == 0) {
++ manager_disconnect_plymouth(m);
++ return 0;
++ }
++
++ if (l > 1 && buffer[0] == '\15')
++ log_error("Message update to plymouth wasn't delivered successfully");
++
++ /* the only answer support type we requested is a key interruption */
++ if (l > 2 && buffer[0] == '\2' && buffer[5] == '\3') {
++ m->cancel_requested = true;
++
++ /* cancel all connected clients */
++ LIST_FOREACH(clients, current, m->clients)
++ client_request_cancel(current);
++ }
++
++ return 0;
++}
++
++static int manager_connect_plymouth(Manager *m) {
++ union sockaddr_union sa = PLYMOUTH_SOCKET;
++ int r;
++
++ if (!plymouth_running())
++ return 0;
++
++ /* try to connect or reconnect if sending a message */
++ if (m->plymouth_fd >= 0)
++ return 1;
++
++ m->plymouth_fd = socket(AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0);
++ if (m->plymouth_fd < 0)
++ return log_warning_errno(errno, "Connection to plymouth socket failed: %m");
++
++ if (connect(m->plymouth_fd, &sa.sa, offsetof(struct sockaddr_un, sun_path) + 1 + strlen(sa.un.sun_path+1)) < 0) {
++ r = log_warning_errno(errno, "Couldn't connect to plymouth: %m");
++ goto fail;
++ }
++
++ r = sd_event_add_io(m->event, &m->plymouth_event_source, m->plymouth_fd, EPOLLIN, manager_plymouth_feedback_handler, m);
++ if (r < 0) {
++ log_warning_errno(r, "Can't listen to plymouth socket: %m");
++ goto fail;
++ }
++
++ return 1;
++
++fail:
++ manager_disconnect_plymouth(m);
++ return r;
++}
++
++static int plymouth_send_message(int plymouth_fd, const char *message, bool update) {
++ _cleanup_free_ char *packet = NULL;
++ int n;
++ char mode = 'M';
++
++ if (update)
++ mode = 'U';
++
++ if (asprintf(&packet, "%c\002%c%s%n", mode, (int) (strlen(message) + 1), message, &n) < 0)
++ return log_oom();
++
++ return loop_write(plymouth_fd, packet, n + 1, true);
++}
++
++static int manager_send_plymouth_message(Manager *m, const char *message) {
++ const char *plymouth_cancel_message = NULL, *l10n_cancel_message = NULL;
++ int r;
++
++ r = manager_connect_plymouth(m);
++ if (r < 0)
++ return r;
++ /* 0 means that plymouth isn't running, do not send any message yet */
++ else if (r == 0)
++ return 0;
++
++ if (!m->plymouth_cancel_sent) {
++
++ /* Indicate to plymouth that we listen to Ctrl+C */
++ r = loop_write(m->plymouth_fd, PLYMOUTH_REQUEST_KEY, sizeof(PLYMOUTH_REQUEST_KEY), true);
++ if (r < 0)
++ return log_warning_errno(r, "Can't send to plymouth cancel key: %m");
++
++ m->plymouth_cancel_sent = true;
++
++ l10n_cancel_message = _("Press Ctrl+C to cancel all filesystem checks in progress");
++ plymouth_cancel_message = strjoina("fsckd-cancel-msg:", l10n_cancel_message);
++
++ r = plymouth_send_message(m->plymouth_fd, plymouth_cancel_message, false);
++ if (r < 0)
++ log_warning_errno(r, "Can't send filesystem cancel message to plymouth: %m");
++
++ } else if (m->numdevices == 0) {
++
++ m->plymouth_cancel_sent = false;
++
++ r = plymouth_send_message(m->plymouth_fd, "", false);
++ if (r < 0)
++ log_warning_errno(r, "Can't clear plymouth filesystem cancel message: %m");
++ }
++
++ r = plymouth_send_message(m->plymouth_fd, message, true);
++ if (r < 0)
++ return log_warning_errno(r, "Couldn't send \"%s\" to plymouth: %m", message);
++
++ return 0;
++}
++
++static int manager_update_global_progress(Manager *m) {
++ Client *current = NULL;
++ _cleanup_free_ char *console_message = NULL;
++ _cleanup_free_ char *fsck_message = NULL;
++ int current_numdevices = 0, r;
++ double current_percent = 100;
++
++ /* get the overall percentage */
++ LIST_FOREACH(clients, current, m->clients) {
++ current_numdevices++;
++
++ /* right now, we only keep the minimum % of all fsckd processes. We could in the future trying to be
++ linear, but max changes and corresponds to the pass. We have all the informations into fsckd
++ already if we can treat that in a smarter way. */
++ current_percent = MIN(current_percent, current->percent);
++ }
++
++ /* update if there is anything user-visible to update */
++ if (fabs(current_percent - m->percent) > 0.001 || current_numdevices != m->numdevices) {
++ m->numdevices = current_numdevices;
++ m->percent = current_percent;
++
++ if (asprintf(&console_message,
++ ngettext("Checking in progress on %d disk (%3.1f%% complete)",
++ "Checking in progress on %d disks (%3.1f%% complete)", m->numdevices),
++ m->numdevices, m->percent) < 0)
++ return -ENOMEM;
++
++ if (asprintf(&fsck_message, "fsckd:%d:%3.1f:%s", m->numdevices, m->percent, console_message) < 0)
++ return -ENOMEM;
++
++ r = manager_write_console(m, console_message);
++ if (r < 0)
++ return r;
++
++ /* try to connect to plymouth and send message */
++ r = manager_send_plymouth_message(m, fsck_message);
++ if (r < 0)
++ return r;
++ }
++ return 0;
++}
++
++static int client_progress_handler(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
++ Client *client = userdata;
++ char line[LINE_MAX];
++ Manager *m;
++
++ assert(client);
++ m = client->manager;
++
++ /* check first if we need to cancel this client */
++ if (m->cancel_requested)
++ client_request_cancel(client);
++
++ while (fgets(line, sizeof(line), client->fsck_f) != NULL) {
++ int pass;
++ size_t cur, max;
++ _cleanup_free_ char *device = NULL, *old_device_id = NULL;
++
++ if (sscanf(line, "%i %zu %zu %ms", &pass, &cur, &max, &device) == 4) {
++ if (!client->device_name) {
++ client->device_name = strdup(device);
++ if (!client->device_name) {
++ log_oom();
++ continue;
++ }
++ old_device_id = client->device_id;
++ client->device_id = strdup(device);
++ if (!client->device_id) {
++ log_oom();
++ client->device_id = old_device_id;
++ old_device_id = NULL;
++ continue;
++ }
++ }
++ client->pass = pass;
++ client->cur = cur;
++ client->max = max;
++ client->bad_input = false;
++ client->percent = compute_percent(client->pass, client->cur, client->max);
++ log_debug("Getting progress for %s (%zu, %zu, %d) : %3.1f%%", client->device_id,
++ client->cur, client->max, client->pass, client->percent);
++ } else {
++ if (errno == ENOMEM) {
++ log_oom();
++ continue;
++ }
++
++ /* if previous input was already garbage, kick it off from progress report */
++ if (client->bad_input) {
++ log_warning("Closing connection on incorrect input of fsck connection for %s", client->device_id);
++ client_free(client);
++ manager_update_global_progress(m);
++ return 0;
++ }
++ client->bad_input = true;
++ }
++
++ }
++
++ if (feof(client->fsck_f)) {
++ log_debug("Fsck client %s disconnected", client->device_id);
++ client_free(client);
++ }
++
++ manager_update_global_progress(m);
++ return 0;
++}
++
++static int manager_new_connection_handler(sd_event_source *s, int fd, uint32_t revents, void *userdata) {
++ _cleanup_(client_freep) Client *c = NULL;
++ _cleanup_close_ int new_fsck_fd = -1;
++ _cleanup_fclose_ FILE *new_fsck_f = NULL;
++ struct ucred ucred = {};
++ Manager *m = userdata;
++ int r;
++
++ assert(m);
++
++ /* Initialize and list new clients */
++ new_fsck_fd = accept4(m->connection_fd, NULL, NULL, SOCK_CLOEXEC|SOCK_NONBLOCK);
++ if (new_fsck_fd < 0) {
++ log_error_errno(errno, "Couldn't accept a new connection: %m");
++ return 0;
++ }
++
++ if (m->n_clients >= CLIENTS_MAX) {
++ log_error("Too many clients, refusing connection.");
++ return 0;
++ }
++
++
++ new_fsck_f = fdopen(new_fsck_fd, "r");
++ if (!new_fsck_f) {
++ log_error_errno(errno, "Couldn't fdopen new connection for fd %d: %m", new_fsck_fd);
++ return 0;
++ }
++ new_fsck_fd = -1;
++
++ r = getpeercred(fileno(new_fsck_f), &ucred);
++ if (r < 0) {
++ log_error_errno(r, "Couldn't get credentials for fsck: %m");
++ return 0;
++ }
++
++ c = new0(Client, 1);
++ if (!c) {
++ log_oom();
++ return 0;
++ }
++
++ c->fsck_pid = ucred.pid;
++ c->fsck_f = new_fsck_f;
++ new_fsck_f = NULL;
++
++ if (asprintf(&(c->device_id), "fd %d", fileno(c->fsck_f)) < 0) {
++ log_oom();
++ return 0;
++ }
++
++ r = sd_event_add_io(m->event, &c->event_source, fileno(c->fsck_f), EPOLLIN, client_progress_handler, c);
++ if (r < 0) {
++ log_oom();
++ return 0;
++ }
++
++ LIST_PREPEND(clients, m->clients, c);
++ m->n_clients++;
++ c->manager = m;
++
++ log_debug("New fsck client connected: %s", c->device_id);
++
++ /* only request the client to cancel now in case the request is dropped by the client (chance to recancel) */
++ if (m->cancel_requested)
++ client_request_cancel(c);
++
++ c = NULL;
++ return 0;
++}
++
++static void manager_free(Manager *m) {
++ if (!m)
++ return;
++
++ /* clear last line */
++ manager_write_console(m, NULL);
++
++ sd_event_source_unref(m->connection_event_source);
++ safe_close(m->connection_fd);
++
++ while (m->clients)
++ client_free(m->clients);
++
++ manager_disconnect_plymouth(m);
++
++ sd_event_unref(m->event);
++
++ free(m);
++}
++
++static int manager_new(Manager **ret, int fd) {
++ _cleanup_(manager_freep) Manager *m = NULL;
++ int r;
++
++ assert(ret);
++
++ m = new0(Manager, 1);
++ if (!m)
++ return -ENOMEM;
++
++ m->plymouth_fd = -1;
++ m->connection_fd = fd;
++ m->percent = 100;
++
++ r = sd_event_default(&m->event);
++ if (r < 0)
++ return r;
++
++ if (access("/run/systemd/show-status", F_OK) >= 0)
++ m->show_status_console = true;
++
++ r = sd_event_add_io(m->event, &m->connection_event_source, fd, EPOLLIN, manager_new_connection_handler, m);
++ if (r < 0)
++ return r;
++
++ *ret = m;
++ m = NULL;
++
++ return 0;
++}
++
++static int run_event_loop_with_timeout(Manager *m, usec_t timeout) {
++ int r, code;
++ sd_event *e = m->event;
++
++ assert(e);
++
++ for (;;) {
++ r = sd_event_get_state(e);
++ if (r < 0)
++ return r;
++ if (r == SD_EVENT_FINISHED)
++ break;
++
++ r = sd_event_run(e, timeout);
++ if (r < 0)
++ return r;
++
++ /* Exit if we reached the idle timeout and no more clients are
++ connected. If there is still an fsck process running but
++ simply slow to send us progress updates, exiting would mean
++ that this fsck process receives SIGPIPE resulting in an
++ aborted file system check. */
++ if (r == 0 && m->n_clients == 0) {
++ sd_event_exit(e, 0);
++ break;
++ }
++ }
++
++ r = sd_event_get_exit_code(e, &code);
++ if (r < 0)
++ return r;
++
++ return code;
++}
++
++static void help(void) {
++ printf("%s [OPTIONS...]\n\n"
++ "Capture fsck progress and forward one stream to plymouth\n\n"
++ " -h --help Show this help\n"
++ " --version Show package version\n",
++ program_invocation_short_name);
++}
++
++static int parse_argv(int argc, char *argv[]) {
++
++ enum {
++ ARG_VERSION = 0x100,
++ ARG_ROOT,
++ };
++
++ static const struct option options[] = {
++ { "help", no_argument, NULL, 'h' },
++ { "version", no_argument, NULL, ARG_VERSION },
++ {}
++ };
++
++ int c;
++
++ assert(argc >= 0);
++ assert(argv);
++
++ while ((c = getopt_long(argc, argv, "hv", options, NULL)) >= 0)
++ switch (c) {
++
++ case 'h':
++ help();
++ return 0;
++
++ case ARG_VERSION:
++ version();
++ return 0;
++
++ case '?':
++ return -EINVAL;
++
++ default:
++ assert_not_reached("Unhandled option");
++ }
++
++ if (optind < argc) {
++ log_error("Extraneous arguments");
++ return -EINVAL;
++ }
++
++ return 1;
++}
++
++int main(int argc, char *argv[]) {
++ _cleanup_(manager_freep) Manager *m = NULL;
++ int fd = -1;
++ int r, n;
++
++ log_set_target(LOG_TARGET_AUTO);
++ log_parse_environment();
++ log_open();
++ init_gettext();
++
++ r = parse_argv(argc, argv);
++ if (r <= 0)
++ goto finish;
++
++ n = sd_listen_fds(0);
++ if (n > 1) {
++ log_error("Too many file descriptors received.");
++ r = -EINVAL;
++ goto finish;
++ } else if (n == 1)
++ fd = SD_LISTEN_FDS_START + 0;
++ else {
++ fd = make_socket_fd(LOG_DEBUG, FSCKD_SOCKET_PATH, SOCK_STREAM, SOCK_CLOEXEC);
++ if (fd < 0) {
++ r = log_error_errno(fd, "Couldn't create listening socket fd on %s: %m", FSCKD_SOCKET_PATH);
++ goto finish;
++ }
++ }
++
++ r = manager_new(&m, fd);
++ if (r < 0) {
++ log_error_errno(r, "Failed to allocate manager: %m");
++ goto finish;
++ }
++
++ r = run_event_loop_with_timeout(m, IDLE_TIME_SECONDS * USEC_PER_SEC);
++ if (r < 0) {
++ log_error_errno(r, "Failed to run event loop: %m");
++ goto finish;
++ }
++
++ sd_event_get_exit_code(m->event, &r);
++
++finish:
++ return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
++}
+diff --git a/units/meson.build b/units/meson.build
+index ba60eb7..95d7eda 100644
+--- a/units/meson.build
++++ b/units/meson.build
+@@ -103,6 +103,7 @@ units = [
+ ['systemd-exit.service', ''],
+ ['systemd-firstboot.service', 'ENABLE_FIRSTBOOT',
+ 'sysinit.target.wants/'],
++ ['systemd-fsckd.socket', ''],
+ ['systemd-halt.service', ''],
+ ['systemd-homed-activate.service', 'ENABLE_HOMED'],
+ ['systemd-initctl.socket', 'HAVE_SYSV_COMPAT',
+@@ -174,6 +175,7 @@ in_units = [
+ ['systemd-pstore.service', 'ENABLE_PSTORE'],
+ ['systemd-fsck-root.service', ''],
+ ['systemd-fsck@.service', ''],
++ ['systemd-fsckd.service', ''],
+ ['systemd-hibernate-resume@.service', 'ENABLE_HIBERNATE'],
+ ['systemd-hibernate.service', 'ENABLE_HIBERNATE'],
+ ['systemd-hybrid-sleep.service', 'ENABLE_HIBERNATE'],
+diff --git a/units/systemd-fsck-root.service.in b/units/systemd-fsck-root.service.in
+index c4a2948..1dce176 100644
+--- a/units/systemd-fsck-root.service.in
++++ b/units/systemd-fsck-root.service.in
+@@ -13,6 +13,8 @@ Documentation=man:systemd-fsck-root.service(8)
+ DefaultDependencies=no
+ Conflicts=shutdown.target
+ Before=local-fs.target shutdown.target
++Wants=systemd-fsckd.socket
++After=systemd-fsckd.socket
+ ConditionPathIsReadWrite=!/
+
+ [Service]
+diff --git a/units/systemd-fsck@.service.in b/units/systemd-fsck@.service.in
+index 6d9c9ab..48d5f29 100644
+--- a/units/systemd-fsck@.service.in
++++ b/units/systemd-fsck@.service.in
+@@ -13,7 +13,8 @@ Documentation=man:systemd-fsck@.service(8)
+ DefaultDependencies=no
+ BindsTo=%i.device
+ Conflicts=shutdown.target
+-After=%i.device systemd-fsck-root.service local-fs-pre.target
++Wants=systemd-fsckd.socket
++After=%i.device systemd-fsck-root.service local-fs-pre.target systemd-fsckd.socket
+ Before=systemd-quotacheck.service shutdown.target
+
+ [Service]
+diff --git a/units/systemd-fsckd.service.in b/units/systemd-fsckd.service.in
+new file mode 100644
+index 0000000..9c7ed51
+--- /dev/null
++++ b/units/systemd-fsckd.service.in
+@@ -0,0 +1,17 @@
++# This file is part of systemd.
++#
++# 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.
++
++[Unit]
++Description=File System Check Daemon to report status
++Documentation=man:systemd-fsckd.service(8)
++DefaultDependencies=no
++Requires=systemd-fsckd.socket
++Before=shutdown.target
++
++[Service]
++ExecStart=@rootlibexecdir@/systemd-fsckd
++StandardOutput=journal+console
+diff --git a/units/systemd-fsckd.socket b/units/systemd-fsckd.socket
+new file mode 100644
+index 0000000..61fec97
+--- /dev/null
++++ b/units/systemd-fsckd.socket
+@@ -0,0 +1,15 @@
++# This file is part of systemd.
++#
++# 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.
++
++[Unit]
++Description=fsck to fsckd communication Socket
++Documentation=man:systemd-fsckd.service(8) man:systemd-fsck@.service(8) man:systemd-fsck-root.service(8)
++DefaultDependencies=no
++
++[Socket]
++ListenStream=/run/systemd/fsck.progress
++SocketMode=0600