Generic code the bind an Ethernet interface with uBridge. Ref #771.

gns3server/compute/base_node.py

@@ -15,6 +15,7 @@
 # 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 sys
 import os
 import stat
 import logging
@@ -25,6 +26,7 @@ import tempfile
 import psutil
 import platform
 
+from gns3server.utils.interfaces import interfaces
 from ..compute.port_manager import PortManager
 from ..utils.asyncio import wait_run_in_executor
 from ..utils.asyncio.telnet_server import AsyncioTelnetServer
@@ -543,7 +545,7 @@ class BaseNode:
     @asyncio.coroutine
     def _add_ubridge_udp_connection(self, bridge_name, source_nio, destination_nio):
         """
-        Creates a connection in uBridge.
+        Creates an UDP connection in uBridge.
 
         :param bridge_name: bridge name in uBridge
         :param source_nio: source NIO instance
@@ -571,6 +573,47 @@ class BaseNode:
 
         yield from self._ubridge_send('bridge start {name}'.format(name=bridge_name))
 
+    @asyncio.coroutine
+    def _add_ubridge_ethernet_connection(self, bridge_name, ethernet_interface, block_host_traffic=True):
+        """
+        Creates a connection with an Ethernet interface in uBridge.
+
+        :param bridge_name: bridge name in uBridge
+        :param ethernet_interface: Ethernet interface name
+        :param block_host_traffic: block network traffic originating from the host OS (Windows only)
+        """
+
+        if sys.platform.startswith("linux"):
+            # on Linux we use RAW sockets
+            yield from self._ubridge_send('bridge add_nio_linux_raw {name} "{interface}"'.format(name=bridge_name, interface=ethernet_interface))
+        elif sys.platform.startswith("win"):
+            # on Windows we use Winpcap/Npcap
+            windows_interfaces = interfaces()
+            npf_id = None
+            source_mac = None
+            for interface in windows_interfaces:
+                # Winpcap/Npcap uses a NPF ID to identify an interface on Windows
+                if "netcard" in interface and ethernet_interface in interface["netcard"]:
+                    npf_id = interface["id"]
+                    source_mac = interface["mac_address"]
+                elif ethernet_interface in interface["name"]:
+                    npf_id = interface["id"]
+                    source_mac = interface["mac_address"]
+            if npf_id:
+                yield from self._ubridge_send('bridge add_nio_ethernet {name} "{interface}"'.format(name=bridge_name,
+                                                                                                    interface=npf_id))
+            else:
+                raise NodeError("Could not find NPF id for VMnet interface {}".format(ethernet_interface))
+
+            if block_host_traffic:
+                if source_mac:
+                    yield from self._ubridge_send('bridge set_pcap_filter {name} "not ether src {mac}"'.format(name=bridge_name, mac=source_mac))
+                else:
+                    log.warn("Could not block host network traffic on {} (no MAC address found)".format(ethernet_interface))
+        else:
+            # on other platforms we just rely on the pcap library
+            yield from self._ubridge_send('bridge add_nio_ethernet {name} "{interface}"'.format(name=bridge_name, interface=ethernet_interface))
+
     def _create_local_udp_tunnel(self):
         """
         Creates a local UDP tunnel (pair of 2 NIOs, one for each direction)

gns3server/compute/vmware/vmware_vm.py

@@ -21,7 +21,6 @@ VMware VM instance.
 
 import sys
 import os
-import socket
 import asyncio
 import tempfile
 
@@ -298,35 +297,12 @@ class VMwareVM(BaseNode):
             raise VMwareError("vnet {} not in VMX file".format(vnet))
         yield from self._ubridge_send("bridge create {name}".format(name=vnet))
         vmnet_interface = os.path.basename(self._vmx_pairs[vnet])
-        if sys.platform.startswith("linux"):
-            yield from self._ubridge_send('bridge add_nio_linux_raw {name} "{interface}"'.format(name=vnet, interface=vmnet_interface))
-        elif sys.platform.startswith("win"):
-            windows_interfaces = interfaces()
-            npf = None
-            source_mac = None
-            for interface in windows_interfaces:
-                if "netcard" in interface and vmnet_interface in interface["netcard"]:
-                    npf = interface["id"]
-                    source_mac = interface["mac_address"]
-                elif vmnet_interface in interface["name"]:
-                    npf = interface["id"]
-                    source_mac = interface["mac_address"]
-            if npf:
-                yield from self._ubridge_send('bridge add_nio_ethernet {name} "{interface}"'.format(name=vnet, interface=npf))
-            else:
-                raise VMwareError("Could not find NPF id for VMnet interface {}".format(vmnet_interface))
-
-            if block_host_traffic:
-                if source_mac:
-                    yield from self._ubridge_send('bridge set_pcap_filter {name} "not ether src {mac}"'.format(name=vnet, mac=source_mac))
-                else:
-                    log.warn("Could not block host network traffic on {} (no MAC address found)".format(vmnet_interface))
 
-        elif sys.platform.startswith("darwin"):
+        if sys.platform.startswith("darwin"):
+            # special case on OSX, we cannot bind VMnet interfaces using the libpcap
             yield from self._ubridge_send('bridge add_nio_fusion_vmnet {name} "{interface}"'.format(name=vnet, interface=vmnet_interface))
         else:
-            yield from self._ubridge_send('bridge add_nio_ethernet {name} "{interface}"'.format(name=vnet,
-                                                                                                interface=vmnet_interface))
+            yield from self._add_ubridge_ethernet_connection(vnet, vmnet_interface, block_host_traffic)
 
         if isinstance(nio, NIOUDP):
             yield from self._ubridge_send('bridge add_nio_udp {name} {lport} {rhost} {rport}'.format(name=vnet,