wireless: T1627: initial rewrite in XML/Python style

Working:
- Wireless modes b, g, n, ac
- WPA/WPA2 psk and RADIUS (tested using Microsoft NPS)

1 files changed, 111 insertions, 0 deletions

diff --git a/src/conf_mode/system-wifi-regdom.py b/src/conf_mode/system-wifi-regdom.py
new file mode 100755
index 000000000..01dc92a20
--- /dev/null
+++ b/src/conf_mode/system-wifi-regdom.py
@@ -0,0 +1,111 @@
+#!/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
+import jinja2
+
+from copy import deepcopy
+from sys import exit
+
+from vyos.config import Config
+from vyos import ConfigError
+
+config_80211_file='/etc/modprobe.d/cfg80211.conf'
+config_crda_file='/etc/default/crda'
+
+# Please be careful if you edit the template.
+config_80211_tmpl = """
+{%- if regdom -%}
+options cfg80211 ieee80211_regdom={{ regdom }}
+{% endif %}
+"""
+
+# Please be careful if you edit the template.
+config_crda_tmpl = """
+{%- if regdom -%}
+REGDOMAIN={{ regdom }}
+{% endif %}
+"""
+
+default_config_data = {
+    'regdom' : '',
+    'deleted' : False
+}
+
+
+def get_config():
+    regdom = deepcopy(default_config_data)
+    conf = Config()
+
+    # set new configuration level
+    conf.set_level('system')
+
+    # Check if interface has been removed
+    if not conf.exists('wifi-regulatory-domain'):
+        regdom['deleted'] = True
+        return regdom
+
+    # retrieve configured regulatory domain
+    if conf.exists('wifi-regulatory-domain'):
+        regdom['regdom'] = conf.return_value('wifi-regulatory-domain')
+
+    return regdom
+
+def verify(regdom):
+    if regdom['deleted']:
+        return None
+
+    if not regdom['regdom']:
+        raise ConfigError("Wireless regulatory domain is mandatory.")
+
+    return None
+
+def generate(regdom):
+    print("Changing the wireless regulatory domain requires a system reboot.")
+
+    if regdom['deleted']:
+        if os.path.isfile(config_80211_file):
+            os.unlink(config_80211_file)
+
+        if os.path.isfile(config_crda_file):
+            os.unlink(config_crda_file)
+
+        return None
+
+    tmpl = jinja2.Template(config_80211_tmpl)
+    config_text = tmpl.render(regdom)
+    with open(config_80211_file, 'w') as f:
+        f.write(config_text)
+
+    tmpl = jinja2.Template(config_crda_tmpl)
+    config_text = tmpl.render(regdom)
+    with open(config_crda_file, 'w') as f:
+        f.write(config_text)
+
+    return None
+
+def apply(regdom):
+    return None
+
+if __name__ == '__main__':
+    try:
+        c = get_config()
+        verify(c)
+        generate(c)
+        apply(c)
+    except ConfigError as e:
+        print(e)
+        exit(1)