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Use uBridge for Qemu connections. Ref #267.

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Handle packet captures for VPCS & Qemu nodes. Fixes #548.
This commit is contained in:
grossmj
2016-06-23 16:56:06 -06:00
parent 4eb03b5a99
commit 04022677bd
9 changed files with 244 additions and 119 deletions
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54
gns3server/compute/base_node.py
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@ -25,9 +25,11 @@ import tempfile
import psutil
import platform
from ..compute.port_manager import PortManager
from ..utils.asyncio import wait_run_in_executor
from ..ubridge.hypervisor import Hypervisor
from ..ubridge.ubridge_error import UbridgeError
from .nios.nio_udp import NIOUDP
from .error import NodeError
@ -491,6 +493,58 @@ class BaseNode:
if self._ubridge_hypervisor and self._ubridge_hypervisor.is_running():
yield from self._ubridge_hypervisor.stop()
@asyncio.coroutine
def _add_ubridge_udp_connection(self, bridge_name, source_nio, destination_nio):
"""
Creates a connection in uBridge.
:param bridge_name: bridge name in uBridge
:param source_nio: source NIO instance
:param destination_nio: destination NIO instance
"""
yield from self._ubridge_send("bridge create {name}".format(name=bridge_name))
if not isinstance(destination_nio, NIOUDP):
raise NodeError("Destination NIO is not UDP")
yield from self._ubridge_send('bridge add_nio_udp {name} {lport} {rhost} {rport}'.format(name=bridge_name,
lport=source_nio.lport,
rhost=source_nio.rhost,
rport=source_nio.rport))
yield from self._ubridge_send('bridge add_nio_udp {name} {lport} {rhost} {rport}'.format(name=bridge_name,
lport=destination_nio.lport,
rhost=destination_nio.rhost,
rport=destination_nio.rport))
if destination_nio.capturing:
yield from self._ubridge_send('bridge start_capture {name} "{pcap_file}"'.format(name=bridge_name,
pcap_file=destination_nio.pcap_output_file))
yield from self._ubridge_send('bridge start {name}'.format(name=bridge_name))
def _create_local_udp_tunnel(self):
"""
Creates a local UDP tunnel (pair of 2 NIOs, one for each direction)
:returns: source NIO and destination NIO.
"""
m = PortManager.instance()
lport = m.get_free_udp_port(self.project)
rport = m.get_free_udp_port(self.project)
source_nio_settings = {'lport': lport, 'rhost': '127.0.0.1', 'rport': rport, 'type': 'nio_udp'}
destination_nio_settings = {'lport': rport, 'rhost': '127.0.0.1', 'rport': lport, 'type': 'nio_udp'}
source_nio = self.manager.create_nio(self.ubridge_path, source_nio_settings)
destination_nio = self.manager.create_nio(self.ubridge_path, destination_nio_settings)
log.info("{module}: '{name}' [{id}]:local UDP tunnel created between port {port1} and {port2}".format(module=self.manager.module_name,
name=self.name,
id=self.id,
port1=lport,
port2=rport))
return source_nio, destination_nio
@property
def hw_virtualization(self):
"""