fsckd daemon for inter-fsckd communication

Add systemd-fsckd multiplexer which accepts multiple systemd-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. This will be used for interactive
progress report and cancelling in plymouth.

systemd-fsckd stops on idle when no systemd-fsck is connected.

Make the necessary changes to systemd-fsck to connect to the systemd-fsckd
socket.

1 files changed, 34 insertions, 0 deletions

diff --git a/src/fsckd/fsckd.h b/src/fsckd/fsckd.h
new file mode 100644
index 0000000000..6fe37a7267
--- /dev/null
+++ b/src/fsckd/fsckd.h
@@ -0,0 +1,34 @@
+/*-*- 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/>.
+***/
+
+#define FSCKD_SOCKET_PATH "/run/systemd/fsckd"
+
+#include "libudev.h"
+
+typedef struct FsckProgress {
+        dev_t devnum;
+        size_t cur;
+        size_t max;
+        int pass;
+} FsckProgress;