ifconfig: T2151: add WiFiIf interface representation class

This class is required as wireless interfaces are created using iw instead of
ip from iproute2.

1 files changed, 63 insertions, 0 deletions

diff --git a/python/vyos/ifconfig/wireless.py b/python/vyos/ifconfig/wireless.py
new file mode 100644
index 000000000..faa47358d
--- /dev/null
+++ b/python/vyos/ifconfig/wireless.py
@@ -0,0 +1,63 @@
+# Copyright 2020 VyOS maintainers and contributors <maintainers@vyos.io>
+#
+# This library 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.
+#
+# This library 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 this library.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+from vyos.ifconfig.vlan import VLANIf
+
+class WiFiIf(VLANIf):
+    """
+    Handle WIFI/WLAN interfaces.
+    """
+
+    options = ['phy', 'op_mode']
+
+    default = {
+        'type': 'wifi',
+        'phy': 'phy0',
+        'op_mode': 'monitor'
+    }
+
+    def _create(self):
+        cmd = 'iw phy {phy} interface add {ifname} type {op_mode}' \
+            .format(**self.config)
+        self._cmd(cmd)
+
+        # place interface in administrative down state
+        # this should be improved in the long run to reduce the amount of
+        # interface flaps
+        self.set_state('down')
+
+    def _delete(self):
+        cmd = 'iw dev {ifname} del' \
+            .format(**self.config)
+        self._cmd(cmd)
+
+    @staticmethod
+    def get_config():
+        """
+        WiFi interfaces require a configuration when they are added using
+        iw (type/phy). This static method will provide the configuration
+        ictionary used by this class.
+
+        Example:
+        >> conf = WiFiIf().get_config()
+        """
+        config = {
+            'phy': 'phy0',
+            'op_mode': 'monitor' # required for proper interface deletion, as
+                                 # _update() is called prior to remove()
+        }
+        return config