3 files changed, 50 insertions, 0 deletions
diff --git a/python/vyos/ifconfig/ethernet.py b/python/vyos/ifconfig/ethernet.py
index d06b0a842..4ae350634 100644
--- a/python/vyos/ifconfig/ethernet.py
+++ b/python/vyos/ifconfig/ethernet.py
@@ -81,6 +81,23 @@ class EthernetIf(Interface):
         super().__init__(ifname, **kargs)
         self.ethtool = Ethtool(ifname)
 
+    def remove(self):
+        """
+        Remove interface from config. Removing the interface deconfigures all
+        assigned IP addresses.
+        Example:
+        >>> from vyos.ifconfig import WWANIf
+        >>> i = EthernetIf('eth0')
+        >>> i.remove()
+        """
+
+        if self.exists(self.ifname):
+            # interface is placed in A/D state when removed from config! It
+            # will remain visible for the operating system.
+            self.set_admin_state('down')
+
+        super().remove()
+
     def set_flow_control(self, enable):
         """
         Changes the pause parameters of the specified Ethernet device.
diff --git a/python/vyos/ifconfig/wwan.py b/python/vyos/ifconfig/wwan.py
index f18959a60..845c9bef9 100644
--- a/python/vyos/ifconfig/wwan.py
+++ b/python/vyos/ifconfig/wwan.py
@@ -26,3 +26,20 @@ class WWANIf(Interface):
             'eternal': 'wwan[0-9]+$',
         },
     }
+
+    def remove(self):
+        """
+        Remove interface from config. Removing the interface deconfigures all
+        assigned IP addresses.
+        Example:
+        >>> from vyos.ifconfig import WWANIf
+        >>> i = WWANIf('wwan0')
+        >>> i.remove()
+        """
+
+        if self.exists(self.ifname):
+            # interface is placed in A/D state when removed from config! It
+            # will remain visible for the operating system.
+            self.set_admin_state('down')
+
+        super().remove()
diff --git a/python/vyos/util.py b/python/vyos/util.py
index 9f01d504d..1834b78bd 100644
--- a/python/vyos/util.py
+++ b/python/vyos/util.py
@@ -717,3 +717,19 @@ def is_systemd_service_running(service):
     Copied from: https://unix.stackexchange.com/a/435317 """
     tmp = cmd(f'systemctl show --value -p SubState {service}')
     return bool((tmp == 'running'))
+
+def is_wwan_connected(interface):
+    """ Determine if a given WWAN interface, e.g. wwan0 is connected to the
+    carrier network or not """
+    import json
+
+    if not interface.startswith('wwan'):
+        raise ValueError(f'Specified interface "{interface}" is not a WWAN interface')
+
+    modem = interface.lstrip('wwan')
+
+    tmp = cmd(f'mmcli --modem {modem} --output-json')
+    tmp = json.loads(tmp)
+
+    # return True/False if interface is in connected state
+    return dict_search('modem.generic.state', tmp) == 'connected'