new module : openrcdmcryptcfg

- auto unlock encrypted /home partition with OpenRC
- see also https://github.com/calamares/calamares/pull/750

src/modules/openrcdmcryptcfg/main.py

@@ -0,0 +1,59 @@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# === This file is part of Calamares - <http://github.com/calamares> ===
+#
+#   Copyright 2017, Ghiunhan Mamut <venerix@redcorelinux.org>
+#
+#   Calamares 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 3 of the License, or
+#   (at your option) any later version.
+#
+#   Calamares 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 Calamares. If not, see <http://www.gnu.org/licenses/>.
+
+import libcalamares
+import os.path
+
+
+def write_dmcrypt_conf(partitions, root_mount_point, dmcrypt_conf_path):
+    crypto_target = ""
+    crypto_source = ""
+
+    for partition in partitions:
+        if partition["mountPoint"] == "/home" and "luksMapperName" in partition:
+            crypto_target = partition["luksMapperName"]
+            crypto_source = "/dev/disk/by-uuid/{!s}".format(partition["uuid"])
+        
+    if not "luksMapperName" in partition:
+            return None
+
+    with open(os.path.join(root_mount_point, dmcrypt_conf_path), 'a+') as dmcrypt_file:
+        dmcrypt_file.write("\ntarget=" + crypto_target)
+        dmcrypt_file.write("\nsource=" + crypto_source)
+        dmcrypt_file.write("\nkey=/crypto_keyfile.bin")
+        dmcrypt_file.write("\n")
+        dmcrypt_file.close()
+
+    return None
+
+
+def run():
+    """
+    This module configures the OpenRC dmcrypt service for an encrypted /home partition.
+    :return:
+    """
+
+    root_mount_point = libcalamares.globalstorage.value("rootMountPoint")
+    dmcrypt_conf_path = libcalamares.job.configuration["configFilePath"]
+    partitions = libcalamares.globalstorage.value("partitions")
+
+    dmcrypt_conf_path = dmcrypt_conf_path.lstrip('/')
+
+    return write_dmcrypt_conf(partitions, root_mount_point, dmcrypt_conf_path)

src/modules/openrcdmcryptcfg/module.desc

@@ -0,0 +1,5 @@
+---
+type:       "job"
+name:       "openrcdmcryptcfg"
+interface:  "python"
+script:     "main.py"

src/modules/openrcdmcryptcfg/openrcdmcryptcfg.conf

@@ -0,0 +1,2 @@
+---
+configFilePath: /etc/conf.d/dmcrypt