mirror of
https://github.com/GNS3/gns3-server
synced 2024-11-13 20:08:55 +00:00
Support bridge in cloud
Nat take advantage of that and the code is more simple. Fix #761
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parent
1b3e47ce83
commit
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@ -210,23 +210,11 @@ class Cloud(BaseNode):
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raise NodeError("Interface '{}' could not be found on this system".format(port_info["interface"]))
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if sys.platform.startswith("linux"):
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# use raw sockets on Linux
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yield from self._ubridge_send('bridge add_nio_linux_raw {name} "{interface}"'.format(name=bridge_name,
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interface=port_info["interface"]))
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yield from self._add_linux_ethernet(port_info, bridge_name)
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elif sys.platform.startswith("darwin"):
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yield from self._add_osx_ethernet(port_info, bridge_name)
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else:
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if sys.platform.startswith("darwin"):
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# Wireless adapters are not well supported by the libpcap on OSX
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if (yield from self._is_wifi_adapter_osx(port_info["interface"])):
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raise NodeError("Connecting to a Wireless adapter is not supported on Mac OS")
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if sys.platform.startswith("darwin") and port_info["interface"].startswith("vmnet"):
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# Use a special NIO to connect to VMware vmnet interfaces on OSX (libpcap doesn't support them)
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yield from self._ubridge_send('bridge add_nio_fusion_vmnet {name} "{interface}"'.format(name=bridge_name,
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interface=port_info["interface"]))
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else:
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if not gns3server.utils.interfaces.has_netmask(port_info["interface"]):
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raise NodeError("Interface {} don't have a netmask".format(port_info["interface"]))
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yield from self._ubridge_send('bridge add_nio_ethernet {name} "{interface}"'.format(name=bridge_name,
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interface=port_info["interface"]))
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yield from self._add_windows_ethernet(port_info, bridge_name)
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elif port_info["type"] == "tap":
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yield from self._ubridge_send('bridge add_nio_tap {name} "{interface}"'.format(name=bridge_name, interface=port_info["interface"]))
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@ -243,6 +231,41 @@ class Cloud(BaseNode):
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yield from self._ubridge_send('bridge start {name}'.format(name=bridge_name))
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@asyncio.coroutine
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def _add_linux_ethernet(self, port_info, bridge_name):
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"""
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Use raw sockets on Linux.
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If interface is a bridge we connect a tap to it
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"""
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interface = port_info["interface"]
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if gns3server.utils.interfaces.is_interface_bridge(interface):
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tap = "gns3tap{}-{}".format(Cloud._cloud_id, port_info["port_number"])
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yield from self._ubridge_send('bridge add_nio_tap "{name}" "{interface}"'.format(name=bridge_name, interface=tap))
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yield from self._ubridge_send('brctl addif "{interface}" "{tap}"'.format(tap=tap, interface=interface))
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else:
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yield from self._ubridge_send('bridge add_nio_linux_raw {name} "{interface}"'.format(name=bridge_name, interface=interface))
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@asyncio.coroutine
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def _add_osx_ethernet(self, port_info, bridge_name):
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# Wireless adapters are not well supported by the libpcap on OSX
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if (yield from self._is_wifi_adapter_osx(port_info["interface"])):
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raise NodeError("Connecting to a Wireless adapter is not supported on Mac OS")
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if port_info["interface"].startswith("vmnet"):
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# Use a special NIO to connect to VMware vmnet interfaces on OSX (libpcap doesn't support them)
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yield from self._ubridge_send('bridge add_nio_fusion_vmnet {name} "{interface}"'.format(name=bridge_name,
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interface=port_info["interface"]))
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return
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if not gns3server.utils.interfaces.has_netmask(port_info["interface"]):
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raise NodeError("Interface {} don't have a netmask".format(port_info["interface"]))
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yield from self._ubridge_send('bridge add_nio_ethernet {name} "{interface}"'.format(name=bridge_name, interface=port_info["interface"]))
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@asyncio.coroutine
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def _add_windows_ethernet(self, port_info, bridge_name):
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if not gns3server.utils.interfaces.has_netmask(port_info["interface"]):
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raise NodeError("Interface {} don't have a netmask".format(port_info["interface"]))
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yield from self._ubridge_send('bridge add_nio_ethernet {name} "{interface}"'.format(name=bridge_name, interface=port_info["interface"]))
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@asyncio.coroutine
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def add_nio(self, nio, port_number):
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"""
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@ -29,19 +29,15 @@ class Nat(Cloud):
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nat access to the outside
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"""
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_nat_id = 0
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def __init__(self, *args, **kwargs):
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if "virbr0" not in [interface["name"] for interface in gns3server.utils.interfaces.interfaces()]:
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raise NodeError("virbr0 is missing. You need to install libvirt")
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self._interface = "gns3nat{}".format(Nat._nat_id)
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Nat._nat_id += 1
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ports = [
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{
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"name": "nat0",
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"type": "tap",
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"interface": self._interface,
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"type": "ethernet",
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"interface": "virbr0",
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"port_number": 0
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}
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]
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@ -56,11 +52,6 @@ class Nat(Cloud):
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# It's not allowed to change it
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pass
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@asyncio.coroutine
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def add_nio(self, nio, port_number):
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yield from super().add_nio(nio, port_number)
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yield from self._ubridge_send('brctl addif virbr0 "{interface}"'.format(interface=self._interface))
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@classmethod
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def is_supported(self):
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return sys.platform.startswith("linux")
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@ -16,6 +16,7 @@
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import os
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import sys
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import aiohttp
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import socket
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@ -163,6 +164,13 @@ def is_interface_up(interface):
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return True
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def is_interface_bridge(interface):
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"""
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:returns: True if interface is a bridge
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"""
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return os.path.exists(os.path.join("/sys/class/net/", interface, "bridge"))
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def _check_windows_service(service_name):
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import pywintypes
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@ -152,3 +152,32 @@ def test_linux_ethernet_raw_add_nio(linux_platform, project, async_run, nio):
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call("bridge add_nio_linux_raw {}-0 \"eth0\"".format(cloud._id)),
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call("bridge start {}-0".format(cloud._id)),
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])
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def test_linux_ethernet_raw_add_nio_bridge(linux_platform, project, async_run, nio):
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"""
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Bridge can't be connected directly to a cloud we use a tap in the middle
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"""
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ports = [
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{
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"interface": "bridge0",
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"name": "bridge0",
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"port_number": 0,
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"type": "ethernet"
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}
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]
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cloud = Cloud("cloud1", str(uuid.uuid4()), project, MagicMock(), ports=ports)
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with asyncio_patch("gns3server.compute.builtin.nodes.cloud.Cloud._ubridge_send") as ubridge_mock:
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with patch("gns3server.compute.builtin.nodes.cloud.Cloud._interfaces", return_value=[{"name": "bridge0"}]):
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with patch("gns3server.utils.interfaces.is_interface_bridge", return_value=True):
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async_run(cloud.add_nio(nio, 0))
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tap = "gns3tap{}-0".format(cloud._cloud_id)
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ubridge_mock.assert_has_calls([
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call("bridge create {}-0".format(cloud._id)),
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call("bridge add_nio_udp {}-0 4242 127.0.0.1 4343".format(cloud._id)),
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call("bridge add_nio_tap \"{}-0\" \"{}\"".format(cloud._id, tap)),
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call("brctl addif \"bridge0\" \"{}\"".format(tap)),
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call("bridge start {}-0".format(cloud._id)),
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])
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@ -24,12 +24,6 @@ from gns3server.compute.builtin.nodes.nat import Nat
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from gns3server.compute.vpcs import VPCS
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def test_init(on_gns3vm, project):
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nat1 = Nat("nat1", str(uuid.uuid4()), project, MagicMock())
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nat2 = Nat("nat2", str(uuid.uuid4()), project, MagicMock())
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assert nat1.ports_mapping[0]["interface"] != nat2.ports_mapping[0]["interface"]
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def test_json(on_gns3vm, project):
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nat = Nat("nat1", str(uuid.uuid4()), project, MagicMock())
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assert nat.__json__() == {
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@ -39,20 +33,10 @@ def test_json(on_gns3vm, project):
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"status": "started",
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"ports_mapping": [
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{
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"interface": nat._interface,
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"interface": "virbr0",
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"name": "nat0",
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"port_number": 0,
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"type": "tap"
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"type": "ethernet"
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}
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]
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}
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def test_add_nio(on_gns3vm, project, async_run):
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nio = VPCS.instance().create_nio({"type": "nio_udp", "lport": 4242, "rport": 4243, "rhost": "127.0.0.1"})
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nat = Nat("nat1", str(uuid.uuid4()), project, MagicMock())
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with asyncio_patch("gns3server.compute.builtin.nodes.cloud.Cloud.add_nio") as cloud_add_nio_mock:
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with asyncio_patch("gns3server.compute.base_node.BaseNode._ubridge_send") as nat_ubridge_send_mock:
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async_run(nat.add_nio(0, nio))
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assert cloud_add_nio_mock.called
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nat_ubridge_send_mock.assert_called_with("brctl addif virbr0 \"{}\"".format(nat._interface))
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