Support for packet capture on VMware VM links.

This commit is contained in:
grossmj committed 2015-09-13 09:40:09 -06:00
1 parent c7b17039cb
commit 0ee31361c0
3 files changed
+154

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@@ -352,6 +352,34 @@ class VMwareVM(BaseVM):
raise VMwareError("vnet {} not in VMX file".format(vnet))
yield from self._ubridge_hypervisor.send("bridge delete {name}".format(name=vnet))
@asyncio.coroutine
def _start_ubridge_capture(self, adapter_number, output_file):
"""
Start a packet capture in uBridge.
:param adapter_number: adapter number
:param output_file: PCAP destination file for the capture
"""
vnet = "ethernet{}.vnet".format(adapter_number)
if vnet not in self._vmx_pairs:
raise VMwareError("vnet {} not in VMX file".format(vnet))
yield from self._ubridge_hypervisor.send('bridge start_capture {name} "{output_file}"'.format(name=vnet,
output_file=output_file))
@asyncio.coroutine
def _stop_ubridge_capture(self, adapter_number):
"""
Stop a packet capture in uBridge.
:param adapter_number: adapter number
"""
vnet = "ethernet{}.vnet".format(adapter_number)
if vnet not in self._vmx_pairs:
raise VMwareError("vnet {} not in VMX file".format(vnet))
yield from self._ubridge_hypervisor.send("bridge stop_capture {name}".format(name=vnet))
@property
def ubridge_path(self):
"""
@@ -927,3 +955,65 @@ class VMwareVM(BaseVM):
else:
self._serial_pipe.close()
self._serial_pipe = None
@asyncio.coroutine
def start_capture(self, adapter_number, output_file):
"""
Starts a packet capture.
:param adapter_number: adapter number
:param output_file: PCAP destination file for the capture
"""
try:
adapter = self._ethernet_adapters[adapter_number]
except KeyError:
raise VMwareError("Adapter {adapter_number} doesn't exist on VMware VM '{name}'".format(name=self.name,
adapter_number=adapter_number))
nio = adapter.get_nio(0)
if isinstance(nio, NIOVMNET):
raise VMwareError("Sorry, packet capture is not supported without uBridge enabled")
if not nio:
raise VMwareError("Adapter {} is not connected".format(adapter_number))
if nio.capturing:
raise VMwareError("Packet capture is already activated on adapter {adapter_number}".format(adapter_number=adapter_number))
nio.startPacketCapture(output_file)
if self._started:
yield from self._start_ubridge_capture(adapter_number, output_file)
log.info("VMware VM '{name}' [{id}]: starting packet capture on adapter {adapter_number}".format(name=self.name,
id=self.id,
adapter_number=adapter_number))
def stop_capture(self, adapter_number):
"""
Stops a packet capture.
:param adapter_number: adapter number
"""
try:
adapter = self._ethernet_adapters[adapter_number]
except KeyError:
raise VMwareError("Adapter {adapter_number} doesn't exist on VirtualBox VM '{name}'".format(name=self.name,
adapter_number=adapter_number))
nio = adapter.get_nio(0)
if not nio:
raise VMwareError("Adapter {} is not connected".format(adapter_number))
nio.stopPacketCapture()
if self._started:
yield from self._stop_ubridge_capture(adapter_number)
log.info("VMware VM '{name}' [{id}]: stopping packet capture on adapter {adapter_number}".format(name=self.name,
id=self.id,
adapter_number=adapter_number))