From de388919813be05bb91e8bb744fe9c756c31e68a Mon Sep 17 00:00:00 2001
From: Erich Eckner <git@eckner.net>
Date: Thu, 14 Jul 2016 20:02:03 +0200
Subject: alter, funktionierenden Zustand

---
 .gitignore |   1 +
 Makefile   |  51 ++++++++++++++++++++++++++++
 cryptfs.in | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 163 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 Makefile
 create mode 100644 cryptfs.in

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..69509e1
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+cryptfs
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c661a11
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,51 @@
+#
+#  cryptfs-daemon - init script to mount crypted filesystems after their requirements, ...
+#
+#  Copyright (c) 2016 Erich Eckner <opensource at eckner dot net>
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program 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 General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
+#  USA.
+#
+
+DESTDIR	 =
+ETCDIR   = /etc
+DEVDIR	 = /dev
+UUIDDIR	 = $(DEVDIR)/disk/by-uuid
+MAPDIR	 = $(DEVDIR)/mapper
+RCDDIR	 = $(ETCDIR)/rc.d
+
+VERSION  = 0.0
+
+all: cryptfs
+
+%: %.in
+	sed "s/#VERSION#/$(VERSION)/; s@#DEVDIR#@$(DEVDIR)@; s@#ETCDIR#@$(ETCDIR)@; s@#UUIDDIR#@$(UUIDDIR)@; s@#MAPDIR#@$(MAPDIR)@; s@#RCDDIR#@$(RCDDIR)@" $< > $@
+
+.PHONY:	install dist clean
+
+install: all
+	install -D -m0755 cryptfs $(DESTDIR)$(RCDDIR)/
+
+clean:
+	rm -f cryptfs
+
+dist: clean
+	git status --porcelain 2> /dev/null | grep -q "\S" && (git add .; git commit -m"neue Version: $(VERSION)") || true
+	! git tag -d v$(VERSION) 2> /dev/null
+	git tag v$(VERSION)
+	git push
+	git push --tags
+
+# End of file
diff --git a/cryptfs.in b/cryptfs.in
new file mode 100644
index 0000000..d184a9c
--- /dev/null
+++ b/cryptfs.in
@@ -0,0 +1,111 @@
+#!/bin/bash
+#
+# #RCDDIR#/cryptfs: mount/umount encrypted partitions
+#
+
+set -o pipefail
+
+cryptTab="$(grep -v "^\s*\(#\|\$\)" #ETCDIR#/crypttab | sed "s/^\s*//")"
+fsTab="$(grep -v "^\s*\(#\|\$\)" #ETCDIR#/fstab | sed "s/^\s*//")"
+
+cryptedFss="$(echo "${cryptTab}" | awk '{print "/dev/mapper/"$1}')"
+neededKeyFss="$(
+    for fs in $(echo "${fsTab}" | awk '{print $2}' | grep "^/")
+    do
+        if echo "${cryptTab}" | grep -q "^\S\+\s\+\S\+\s\+${fs}\(/\|\s\)"
+        then
+            echo "${fs}"
+        fi
+    done
+)"
+
+case $1 in
+
+start)
+
+    for neededKeyFs in ${neededKeyFss}
+    do
+        if ! mount | grep -q "^\S\+\s\+on\s\+${neededKeyFs}\s"
+        then
+            if echo "${fsTab}" | grep -q "^\(ssh\|ftp\)fs#\S*\s\+${neededKeyFs}\s"
+            then
+                maxWait=120
+                while ! ip addr | grep -v "127\.0\.0\.1" | grep -q "^\s*inet\s[[:digit:]]\+\.[[:digit:]]\+\.[[:digit:]]\+\.[[:digit:]]\+/"
+                do
+                    >&2 echo -ne "."
+                    sleep 1
+                    maxWait=$[${maxWait}-1]
+                done
+            fi
+            mount ${neededKeyFs} || exit $?
+        fi
+    done
+
+    for ((cryptDeviceNum=0; cryptDeviceNum<$(echo "${cryptTab}" | wc -l); cryptDeviceNum++))
+    do
+        zeile="$(echo "${cryptTab}" | head -n$[${cryptDeviceNum}+1] | tail -n1)"
+        name="$(echo "${zeile}" | awk '{print $1}')"
+        device="$(echo "${zeile}" | awk '{print $2}')"
+        if [[ "${device}" == "UUID="* ]]
+        then
+            device="#UUIDDIR#/${device#UUID=}"
+        fi
+        keyfile="$(echo "${zeile}" | awk '{print $3}')"
+        if [ ! -b "#MAPDIR#/${name}" ]
+        then
+            cryptsetup luksOpen "${device}" "${name}" --key-file="${keyfile}" || exit $?
+        fi
+    done
+
+    for cryptedFs in ${cryptedFss}
+    do
+        if ! mount | grep -q "^${cryptedFs}\s"
+        then
+            e2fsck ${cryptedFs}
+            mount ${cryptedFs} || exit $?
+        fi
+    done
+
+    ;;
+
+stop)
+
+    for cryptedFs in ${cryptedFss}
+    do
+        if mount | grep -q "^${cryptedFs}\s"
+        then
+            umount ${cryptedFs} || exit $?
+        fi
+    done
+
+    for name in $(echo "${cryptTab}" | awk '{print $1}')
+    do
+        if [ -b "#MAPDIR#/${name}" ]
+        then
+            cryptsetup luksClose "${name}" || exit $?
+        fi
+    done
+
+    for neededKeyFs in ${neededKeyFss}
+    do
+        if [ ! "${neededKeyFs}" == "/" ] && mount | grep -q "^\S\+\s\+on\s\+${neededKeyFs}\s"
+        then
+            umount ${neededKeyFs} || exit $?
+        fi
+    done
+
+    ;;
+
+    restart)
+    $0 stop
+    sleep 2
+    $0 start
+    ;;
+
+*)
+    echo "usage: $0 [start|stop|restart]"
+    ;;
+
+esac
+
+# End of file
-- 
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