ExternalVendorCode/gns3-server
1
0
Fork 0
mirror of https://github.com/GNS3/gns3-server.git synced 2025-06-18 15:28:11 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Use the libpcap on Linux when blocking host originating packets on vmnet interfaces. Ref #1131.

Browse Source
This commit is contained in:
grossmj
2017-07-19 16:56:24 +07:00
parent c2fbe4f313
commit a7d2391608
2 changed files with 12 additions and 12 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
gns3server/compute/base_node.py
View File

@ -632,8 +632,8 @@ class BaseNode:
: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
if sys.platform.startswith("linux") and block_host_traffic is False:
# on Linux we use RAW sockets by default excepting if host traffic must be blocked
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
@ -657,11 +657,19 @@ class BaseNode:
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))
log.info('PCAP filter applied on "{interface}" for source MAC {mac}'.format(interface=ethernet_interface, mac=source_mac))
else:
log.warn("Could not block host network traffic on {} (no MAC address found)".format(ethernet_interface))
log.warning("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))
source_mac = None
for interface in interfaces():
if interface["name"] == ethernet_interface:
source_mac = interface["mac_address"]
if source_mac:
yield from self._ubridge_send('bridge set_pcap_filter {name} "not ether src {mac}"'.format(name=bridge_name, mac=source_mac))
log.info('PCAP filter applied on "{interface}" for source MAC {mac}'.format(interface=ethernet_interface, mac=source_mac))
def _create_local_udp_tunnel(self):
"""