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

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grossmj
2016-11-13 20:28:14 +11:00
parent 63a92c4a16
commit fdc9283e04
2 changed files with 47 additions and 28 deletions
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45
gns3server/compute/base_node.py
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@ -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)