ExternalVendorCode/gns3-server
1
0
Fork 0
mirror of https://github.com/GNS3/gns3-server.git synced 2025-06-18 23:38:17 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

New feature: packet capture for IOS routers.

Browse Source
This commit is contained in:
grossmj
2014-06-26 03:06:58 -06:00
parent 14bb12d3fb
commit 606f773f3d
5 changed files with 225 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

65
gns3server/modules/dynamips/nodes/router.py
View File

@ -1539,6 +1539,71 @@ class Router(object):
slot_id=slot_id,
port_id=port_id))
def start_capture(self, slot_id, port_id, output_file, data_link_type="DLT_EN10MB"):
"""
Starts a packet capture.
:param slot_id: slot ID
:param port_id: port ID
:param output_file: PCAP destination file for the capture
:param data_link_type: PCAP data link type (DLT_*), default is DLT_EN10MB
"""
try:
adapter = self._slots[slot_id]
except IndexError:
raise DynamipsError("Slot {slot_id} doesn't exist on router {name}".format(name=self._name,
slot_id=slot_id))
if not adapter.port_exists(port_id):
raise DynamipsError("Port {port_id} doesn't exist in adapter {adapter}".format(adapter=adapter,
port_id=port_id))
data_link_type = data_link_type.lower()
if data_link_type.startswith("dlt_"):
data_link_type = data_link_type[4:]
nio = adapter.get_nio(port_id)
if nio.input_filter[0] is not None and nio.output_filter[0] is not None:
raise DynamipsError("Port {port_id} has already a filter applied on {adapter}".format(adapter=adapter,
port_id=port_id))
try:
os.makedirs(os.path.dirname(output_file))
except FileExistsError:
pass
except OSError as e:
raise DynamipsError("Could not create captures directory {}".format(e))
nio.bind_filter("both", "capture")
nio.setup_filter("both", "{} {}".format(data_link_type, output_file))
log.info("router {name} [id={id}]: capturing on port {slot_id}/{port_id}".format(name=self._name,
id=self._id,
nio_name=nio.name,
slot_id=slot_id,
port_id=port_id))
def stop_capture(self, slot_id, port_id):
"""
Stops a packet capture.
:param slot_id: slot ID
:param port_id: port ID
"""
try:
adapter = self._slots[slot_id]
except IndexError:
raise DynamipsError("Slot {slot_id} doesn't exist on router {name}".format(name=self._name,
slot_id=slot_id))
if not adapter.port_exists(port_id):
raise DynamipsError("Port {port_id} doesn't exist in adapter {adapter}".format(adapter=adapter,
port_id=port_id))
nio = adapter.get_nio(port_id)
nio.unbind_filter("both")
def _create_slots(self, numslots):
"""
Creates the appropriate number of slots for this router.