Closes #9816: VPN tunnel support (#14276)

- Introduces a new `vpn` app with the following models:
    - Tunnel
    - TunnelTermination
    - IKEProposal
    - IKEPolicy
    - IPSecProposal
    - IPSecPolicy
    - IPSecProfile

netbox/dcim/models/device_components.py

@@ -566,6 +566,10 @@ class BaseInterface(models.Model):
 
         return super().save(*args, **kwargs)
 
+    @property
+    def tunnel_termination(self):
+        return self.tunnel_terminations.first()
+
     @property
     def count_ipaddresses(self):
         return self.ip_addresses.count()
@@ -719,6 +723,12 @@ class Interface(ModularComponentModel, BaseInterface, CabledObjectModel, PathEnd
         object_id_field='interface_id',
         related_query_name='+'
     )
+    tunnel_terminations = GenericRelation(
+        to='vpn.TunnelTermination',
+        content_type_field='termination_type',
+        object_id_field='termination_id',
+        related_query_name='interface'
+    )
     l2vpn_terminations = GenericRelation(
         to='ipam.L2VPNTermination',
         content_type_field='assigned_object_type',

netbox/dcim/tables/devices.py

@@ -584,6 +584,12 @@ class BaseInterfaceTable(NetBoxTable):
         orderable=False,
         verbose_name=_('L2VPN')
     )
+    tunnel = tables.Column(
+        accessor=tables.A('tunnel_termination__tunnel'),
+        linkify=True,
+        orderable=False,
+        verbose_name=_('Tunnel')
+    )
     untagged_vlan = tables.Column(
         verbose_name=_('Untagged VLAN'),
         linkify=True
@@ -646,7 +652,8 @@ class InterfaceTable(ModularDeviceComponentTable, BaseInterfaceTable, PathEndpoi
             'speed', 'speed_formatted', 'duplex', 'mode', 'mac_address', 'wwn', 'poe_mode', 'poe_type', 'rf_role', 'rf_channel',
             'rf_channel_frequency', 'rf_channel_width', 'tx_power', 'description', 'mark_connected', 'cable',
             'cable_color', 'wireless_link', 'wireless_lans', 'link_peer', 'connection', 'tags', 'vdcs', 'vrf', 'l2vpn',
-            'ip_addresses', 'fhrp_groups', 'untagged_vlan', 'tagged_vlans', 'inventory_items', 'created', 'last_updated',
+            'tunnel', 'ip_addresses', 'fhrp_groups', 'untagged_vlan', 'tagged_vlans', 'inventory_items', 'created',
+            'last_updated',
         )
         default_columns = ('pk', 'name', 'device', 'label', 'enabled', 'type', 'description')
 
@@ -682,8 +689,8 @@ class DeviceInterfaceTable(InterfaceTable):
             'pk', 'id', 'name', 'module_bay', 'module', 'label', 'enabled', 'type', 'parent', 'bridge', 'lag',
             'mgmt_only', 'mtu', 'mode', 'mac_address', 'wwn', 'rf_role', 'rf_channel', 'rf_channel_frequency',
             'rf_channel_width', 'tx_power', 'description', 'mark_connected', 'cable', 'cable_color', 'wireless_link',
-            'wireless_lans', 'link_peer', 'connection', 'tags', 'vdcs', 'vrf', 'l2vpn', 'ip_addresses', 'fhrp_groups',
-            'untagged_vlan', 'tagged_vlans', 'actions',
+            'wireless_lans', 'link_peer', 'connection', 'tags', 'vdcs', 'vrf', 'l2vpn', 'tunnel', 'ip_addresses',
+            'fhrp_groups', 'untagged_vlan', 'tagged_vlans', 'actions',
         )
         default_columns = (
             'pk', 'name', 'label', 'enabled', 'type', 'parent', 'lag', 'mtu', 'mode', 'description', 'ip_addresses',

netbox/dcim/tables/template_code.py

@@ -359,6 +359,16 @@ INTERFACE_BUTTONS = """
             <i class="mdi mdi-wifi-off" aria-hidden="true"></i>
         </a>
     {% endif %}
+{% elif record.type == 'virtual' %}
+    {% if perms.vpn.add_tunnel and not record.tunnel_termination %}
+        <a href="{% url 'vpn:tunnel_add' %}?termination1_type=dcim.device&termination1_parent={{ record.device.pk }}&termination1_interface={{ record.pk }}&return_url={% url 'dcim:device_interfaces' pk=object.pk %}" title="Create a tunnel" class="btn btn-success btn-sm">
+            <i class="mdi mdi-tunnel-outline" aria-hidden="true"></i>
+        </a>
+    {% elif perms.vpn.delete_tunneltermination and record.tunnel_termination %}
+        <a href="{% url 'vpn:tunneltermination_delete' pk=record.tunnel_termination.pk %}?return_url={% url 'dcim:device_interfaces' pk=object.pk %}" title="Remove tunnel" class="btn btn-danger btn-sm">
+            <i class="mdi mdi-tunnel-outline" aria-hidden="true"></i>
+        </a>
+    {% endif %}
 {% elif record.is_wired and perms.dcim.add_cable %}
     <a href="#" class="btn btn-outline-dark btn-sm disabled"><i class="mdi mdi-transit-connection-variant" aria-hidden="true"></i></a>
     <a href="#" class="btn btn-outline-dark btn-sm disabled"><i class="mdi mdi-lan-connect" aria-hidden="true"></i></a>