options: T1919: migrate 'system options' to XML/Python representation

1 files changed, 81 insertions, 0 deletions

diff --git a/src/conf_mode/system-options.py b/src/conf_mode/system-options.py
new file mode 100755
index 000000000..4c809d044
--- /dev/null
+++ b/src/conf_mode/system-options.py
@@ -0,0 +1,81 @@
+#!/usr/bin/env python3
+#
+# Copyright (C) 2019 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# 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, see <http://www.gnu.org/licenses/>.
+
+import os
+
+from sys import exit
+from copy import deepcopy
+from vyos.config import Config
+from vyos import ConfigError
+
+systemd_ctrl_alt_del = '/lib/systemd/system/ctrl-alt-del.target'
+
+default_config_data = {
+    'ctrl_alt_del': 'ignore',
+    'reboot_on_panic': True
+}
+
+def get_config():
+    opt = deepcopy(default_config_data)
+    conf = Config()
+    conf.set_level('system options')
+    if conf.exists(''):
+        if conf.exists('ctrl-alt-del-action'):
+            opt['ctrl_alt_del'] = conf.return_value('ctrl-alt-del-action')
+
+        opt['reboot_on_panic'] = conf.exists('reboot-on-panic')
+
+    return opt
+
+def verify(opt):
+    pass
+
+def generate(opt):
+    pass
+
+def apply(opt):
+
+    # Ctrl-Alt-Delete action
+    if opt['ctrl_alt_del'] == 'ignore':
+        os.unlink('/lib/systemd/system/ctrl-alt-del.target')
+
+    elif opt['ctrl_alt_del'] == 'reboot':
+        if os.path.exists(systemd_ctrl_alt_del):
+            os.unlink(systemd_ctrl_alt_del)
+        os.symlink('/lib/systemd/system/reboot.target', systemd_ctrl_alt_del)
+
+    elif opt['ctrl_alt_del'] == 'poweroff':
+        if os.path.exists(systemd_ctrl_alt_del):
+            os.unlink(systemd_ctrl_alt_del)
+        os.symlink('/lib/systemd/system/poweroff.target', systemd_ctrl_alt_del)
+
+    # Reboot system on kernel panic
+    with open('/proc/sys/kernel/panic', 'w') as f:
+        if opt['reboot_on_panic']:
+            f.write('60')
+        else:
+            f.write('0')
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)
+