Rename hypervisor to compute

Fix #487

gns3server/compute/dynamips/nodes/ethernet_hub.py

@@ -0,0 +1,179 @@
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2013 GNS3 Technologies Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+"""
+Hub object that uses the Bridge interface to create a hub with ports.
+"""
+
+import asyncio
+
+from .bridge import Bridge
+from ..nios.nio_udp import NIOUDP
+from ..dynamips_error import DynamipsError
+
+import logging
+log = logging.getLogger(__name__)
+
+
+class EthernetHub(Bridge):
+
+    """
+    Dynamips Ethernet hub (based on Bridge)
+
+    :param name: name for this hub
+    :param device_id: Device instance identifier
+    :param project: Project instance
+    :param manager: Parent VM Manager
+    :param hypervisor: Dynamips hypervisor instance
+    """
+
+    def __init__(self, name, device_id, project, manager, hypervisor=None):
+
+        super().__init__(name, device_id, project, manager, hypervisor)
+        self._mappings = {}
+
+    def __json__(self):
+
+        return {"name": self.name,
+                "device_id": self.id,
+                "project_id": self.project.id}
+
+    @asyncio.coroutine
+    def create(self):
+
+        yield from Bridge.create(self)
+        log.info('Ethernet hub "{name}" [{id}] has been created'.format(name=self._name, id=self._id))
+
+    @property
+    def mappings(self):
+        """
+        Returns port mappings
+
+        :returns: mappings list
+        """
+
+        return self._mappings
+
+    @asyncio.coroutine
+    def delete(self):
+        """
+        Deletes this hub.
+        """
+
+        for nio in self._nios:
+            if nio and isinstance(nio, NIOUDP):
+                self.manager.port_manager.release_udp_port(nio.lport, self._project)
+
+        try:
+            yield from Bridge.delete(self)
+            log.info('Ethernet hub "{name}" [{id}] has been deleted'.format(name=self._name, id=self._id))
+        except DynamipsError:
+            log.debug("Could not properly delete Ethernet hub {}".format(self._name))
+        if self._hypervisor and not self._hypervisor.devices:
+            yield from self.hypervisor.stop()
+
+    @asyncio.coroutine
+    def add_nio(self, nio, port_number):
+        """
+        Adds a NIO as new port on this hub.
+
+        :param nio: NIO instance to add
+        :param port_number: port to allocate for the NIO
+        """
+
+        if port_number in self._mappings:
+            raise DynamipsError("Port {} isn't free".format(port_number))
+
+        yield from Bridge.add_nio(self, nio)
+
+        log.info('Ethernet hub "{name}" [{id}]: NIO {nio} bound to port {port}'.format(name=self._name,
+                                                                                       id=self._id,
+                                                                                       nio=nio,
+                                                                                       port=port_number))
+        self._mappings[port_number] = nio
+
+    @asyncio.coroutine
+    def remove_nio(self, port_number):
+        """
+        Removes the specified NIO as member of this hub.
+
+        :param port_number: allocated port number
+
+        :returns: the NIO that was bound to the allocated port
+        """
+
+        if port_number not in self._mappings:
+            raise DynamipsError("Port {} is not allocated".format(port_number))
+
+        nio = self._mappings[port_number]
+        if isinstance(nio, NIOUDP):
+            self.manager.port_manager.release_udp_port(nio.lport, self._project)
+        yield from Bridge.remove_nio(self, nio)
+
+        log.info('Ethernet switch "{name}" [{id}]: NIO {nio} removed from port {port}'.format(name=self._name,
+                                                                                              id=self._id,
+                                                                                              nio=nio,
+                                                                                              port=port_number))
+
+        del self._mappings[port_number]
+        return nio
+
+    @asyncio.coroutine
+    def start_capture(self, port_number, output_file, data_link_type="DLT_EN10MB"):
+        """
+        Starts a packet capture.
+
+        :param port_number: allocated port number
+        :param output_file: PCAP destination file for the capture
+        :param data_link_type: PCAP data link type (DLT_*), default is DLT_EN10MB
+        """
+
+        if port_number not in self._mappings:
+            raise DynamipsError("Port {} is not allocated".format(port_number))
+
+        nio = self._mappings[port_number]
+
+        data_link_type = data_link_type.lower()
+        if data_link_type.startswith("dlt_"):
+            data_link_type = data_link_type[4:]
+
+        if nio.input_filter[0] is not None and nio.output_filter[0] is not None:
+            raise DynamipsError("Port {} has already a filter applied".format(port_number))
+
+        yield from nio.bind_filter("both", "capture")
+        yield from nio.setup_filter("both", '{} "{}"'.format(data_link_type, output_file))
+
+        log.info('Ethernet hub "{name}" [{id}]: starting packet capture on port {port}'.format(name=self._name,
+                                                                                               id=self._id,
+                                                                                               port=port_number))
+
+    @asyncio.coroutine
+    def stop_capture(self, port_number):
+        """
+        Stops a packet capture.
+
+        :param port_number: allocated port number
+        """
+
+        if port_number not in self._mappings:
+            raise DynamipsError("Port {} is not allocated".format(port_number))
+
+        nio = self._mappings[port_number]
+        yield from nio.unbind_filter("both")
+        log.info('Ethernet hub "{name}" [{id}]: stopping packet capture on port {port}'.format(name=self._name,
+                                                                                               id=self._id,
+                                                                                               port=port_number))