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gns3-server/gns3server/old_modules/dynamips/backends/ethhub.py
2015-01-20 16:37:18 +01:00

354 lines
10 KiB
Python

# -*- coding: utf-8 -*-
#
# Copyright (C) 2014 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/>.
import os
from gns3server.modules import IModule
from ..nodes.hub import Hub
from ..dynamips_error import DynamipsError
from ..schemas.ethhub import ETHHUB_CREATE_SCHEMA
from ..schemas.ethhub import ETHHUB_DELETE_SCHEMA
from ..schemas.ethhub import ETHHUB_UPDATE_SCHEMA
from ..schemas.ethhub import ETHHUB_ALLOCATE_UDP_PORT_SCHEMA
from ..schemas.ethhub import ETHHUB_ADD_NIO_SCHEMA
from ..schemas.ethhub import ETHHUB_DELETE_NIO_SCHEMA
from ..schemas.ethhub import ETHHUB_START_CAPTURE_SCHEMA
from ..schemas.ethhub import ETHHUB_STOP_CAPTURE_SCHEMA
import logging
log = logging.getLogger(__name__)
class ETHHUB(object):
@IModule.route("dynamips.ethhub.create")
def ethhub_create(self, request):
"""
Creates a new Ethernet hub.
Mandatory request parameters:
- name (hub name)
Response parameters:
- id (hub identifier)
- name (hub name)
:param request: JSON request
"""
# validate the request
if not self.validate_request(request, ETHHUB_CREATE_SCHEMA):
return
name = request["name"]
try:
if not self._hypervisor_manager:
self.start_hypervisor_manager()
hypervisor = self._hypervisor_manager.allocate_hypervisor_for_simulated_device()
ethhub = Hub(hypervisor, name)
except DynamipsError as e:
self.send_custom_error(str(e))
return
response = {"name": ethhub.name,
"id": ethhub.id}
self._ethernet_hubs[ethhub.id] = ethhub
self.send_response(response)
@IModule.route("dynamips.ethhub.delete")
def ethhub_delete(self, request):
"""
Deletes a Ethernet hub.
Mandatory request parameters:
- id (hub identifier)
Response parameters:
- True on success
:param request: JSON request
"""
# validate the request
if not self.validate_request(request, ETHHUB_DELETE_SCHEMA):
return
# get the Ethernet hub instance
ethhub_id = request["id"]
ethhub = self.get_device_instance(ethhub_id, self._ethernet_hubs)
if not ethhub:
return
try:
ethhub.delete()
self._hypervisor_manager.unallocate_hypervisor_for_simulated_device(ethhub)
del self._ethernet_hubs[ethhub_id]
except DynamipsError as e:
self.send_custom_error(str(e))
return
self.send_response(request)
@IModule.route("dynamips.ethhub.update")
def ethhub_update(self, request):
"""
Updates a Ethernet hub.
Mandatory request parameters:
- id (hub identifier)
Optional request parameters:
- name (new hub name)
Response parameters:
- name if changed
:param request: JSON request
"""
# validate the request
if not self.validate_request(request, ETHHUB_UPDATE_SCHEMA):
return
# get the Ethernet hub instance
ethhub = self.get_device_instance(request["id"], self._ethernet_hubs)
if not ethhub:
return
response = {}
# rename the hub if requested
if "name" in request and ethhub.name != request["name"]:
try:
ethhub.name = request["name"]
response["name"] = ethhub.name
except DynamipsError as e:
self.send_custom_error(str(e))
return
self.send_response(request)
@IModule.route("dynamips.ethhub.allocate_udp_port")
def ethhub_allocate_udp_port(self, request):
"""
Allocates a UDP port in order to create an UDP NIO for an
Ethernet hub.
Mandatory request parameters:
- id (hub identifier)
- port_id (port identifier)
Response parameters:
- port_id (port identifier)
- lport (allocated local port)
:param request: JSON request
"""
# validate the request
if not self.validate_request(request, ETHHUB_ALLOCATE_UDP_PORT_SCHEMA):
return
# get the Ethernet hub instance
ethhub = self.get_device_instance(request["id"], self._ethernet_hubs)
if not ethhub:
return
try:
# allocate a new UDP port
response = self.allocate_udp_port(ethhub)
except DynamipsError as e:
self.send_custom_error(str(e))
return
response["port_id"] = request["port_id"]
self.send_response(response)
@IModule.route("dynamips.ethhub.add_nio")
def ethhub_add_nio(self, request):
"""
Adds an NIO (Network Input/Output) for an Ethernet hub.
Mandatory request parameters:
- id (hub identifier)
- port (port identifier)
- port_id (port identifier)
- nio (one of the following)
- type "nio_udp"
- lport (local port)
- rhost (remote host)
- rport (remote port)
- type "nio_generic_ethernet"
- ethernet_device (Ethernet device name e.g. eth0)
- type "nio_linux_ethernet"
- ethernet_device (Ethernet device name e.g. eth0)
- type "nio_tap"
- tap_device (TAP device name e.g. tap0)
- type "nio_unix"
- local_file (path to UNIX socket file)
- remote_file (path to UNIX socket file)
- type "nio_vde"
- control_file (path to VDE control file)
- local_file (path to VDE local file)
- type "nio_null"
Response parameters:
- port_id (unique port identifier)
:param request: JSON request
"""
# validate the request
if not self.validate_request(request, ETHHUB_ADD_NIO_SCHEMA):
return
# get the Ethernet hub instance
ethhub = self.get_device_instance(request["id"], self._ethernet_hubs)
if not ethhub:
return
port = request["port"]
try:
nio = self.create_nio(ethhub, request)
if not nio:
raise DynamipsError("Requested NIO doesn't exist: {}".format(request["nio"]))
except DynamipsError as e:
self.send_custom_error(str(e))
return
try:
ethhub.add_nio(nio, port)
except DynamipsError as e:
self.send_custom_error(str(e))
return
self.send_response({"port_id": request["port_id"]})
@IModule.route("dynamips.ethhub.delete_nio")
def ethhub_delete_nio(self, request):
"""
Deletes an NIO (Network Input/Output).
Mandatory request parameters:
- id (hub identifier)
- port (port identifier)
Response parameters:
- True on success
:param request: JSON request
"""
# validate the request
if not self.validate_request(request, ETHHUB_DELETE_NIO_SCHEMA):
return
# get the Ethernet hub instance
ethhub = self.get_device_instance(request["id"], self._ethernet_hubs)
if not ethhub:
return
port = request["port"]
try:
nio = ethhub.remove_nio(port)
nio.delete()
except DynamipsError as e:
self.send_custom_error(str(e))
return
self.send_response(True)
@IModule.route("dynamips.ethhub.start_capture")
def ethhub_start_capture(self, request):
"""
Starts a packet capture.
Mandatory request parameters:
- id (vm identifier)
- port (port identifier)
- port_id (port identifier)
- capture_file_name
Optional request parameters:
- data_link_type (PCAP DLT_* value)
Response parameters:
- port_id (port identifier)
- capture_file_path (path to the capture file)
:param request: JSON request
"""
# validate the request
if not self.validate_request(request, ETHHUB_START_CAPTURE_SCHEMA):
return
# get the Ethernet hub instance
ethhub = self.get_device_instance(request["id"], self._ethernet_hubs)
if not ethhub:
return
port = request["port"]
capture_file_name = request["capture_file_name"]
data_link_type = request.get("data_link_type")
try:
capture_file_path = os.path.join(ethhub.hypervisor.working_dir, "captures", capture_file_name)
ethhub.start_capture(port, capture_file_path, data_link_type)
except DynamipsError as e:
self.send_custom_error(str(e))
return
response = {"port_id": request["port_id"],
"capture_file_path": capture_file_path}
self.send_response(response)
@IModule.route("dynamips.ethhub.stop_capture")
def ethhub_stop_capture(self, request):
"""
Stops a packet capture.
Mandatory request parameters:
- id (vm identifier)
- port_id (port identifier)
- port (port number)
Response parameters:
- port_id (port identifier)
:param request: JSON request
"""
# validate the request
if not self.validate_request(request, ETHHUB_STOP_CAPTURE_SCHEMA):
return
# get the Ethernet hub instance
ethhub = self.get_device_instance(request["id"], self._ethernet_hubs)
if not ethhub:
return
port = request["port"]
try:
ethhub.stop_capture(port)
except DynamipsError as e:
self.send_custom_error(str(e))
return
response = {"port_id": request["port_id"]}
self.send_response(response)