mirror of
https://github.com/GNS3/gns3-server
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316 lines
11 KiB
Python
316 lines
11 KiB
Python
# -*- coding: utf-8 -*-
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#
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# Copyright (C) 2014 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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import re
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from gns3server.modules import IModule
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from ..nodes.atm_switch import ATMSwitch
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from ..dynamips_error import DynamipsError
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from ..schemas.atmsw import ATMSW_CREATE_SCHEMA
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from ..schemas.atmsw import ATMSW_DELETE_SCHEMA
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from ..schemas.atmsw import ATMSW_UPDATE_SCHEMA
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from ..schemas.atmsw import ATMSW_ALLOCATE_UDP_PORT_SCHEMA
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from ..schemas.atmsw import ATMSW_ADD_NIO_SCHEMA
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from ..schemas.atmsw import ATMSW_DELETE_NIO_SCHEMA
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import logging
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log = logging.getLogger(__name__)
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class ATMSW(object):
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@IModule.route("dynamips.atmsw.create")
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def atmsw_create(self, request):
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"""
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Creates a new ATM switch.
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Optional request parameters:
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- name (switch name)
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Response parameters:
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- id (switch identifier)
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- name (switch name)
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:param request: JSON request
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"""
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# validate the request
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if request and not self.validate_request(request, ATMSW_CREATE_SCHEMA):
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return
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name = None
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if request and "name" in request:
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name = request["name"]
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try:
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if not self._hypervisor_manager:
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self.start_hypervisor_manager()
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hypervisor = self._hypervisor_manager.allocate_hypervisor_for_simulated_device()
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atmsw = ATMSwitch(hypervisor, name)
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except DynamipsError as e:
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self.send_custom_error(str(e))
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return
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response = {"name": atmsw.name,
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"id": atmsw.id}
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self._atm_switches[atmsw.id] = atmsw
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self.send_response(response)
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@IModule.route("dynamips.atmsw.delete")
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def atmsw_delete(self, request):
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"""
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Deletes a ATM switch.
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Mandatory request parameters:
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- id (switch identifier)
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Response parameters:
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- True on success
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, ATMSW_DELETE_SCHEMA):
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return
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# get the ATM switch instance
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atmsw_id = request["id"]
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atmsw = self.get_device_instance(atmsw_id, self._atm_switches)
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if not atmsw:
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return
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try:
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atmsw.delete()
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self._hypervisor_manager.unallocate_hypervisor_for_simulated_device(atmsw)
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del self._atm_switches[atmsw_id]
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except DynamipsError as e:
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self.send_custom_error(str(e))
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return
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self.send_response(True)
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@IModule.route("dynamips.atmsw.update")
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def atmsw_update(self, request):
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"""
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Updates a ATM switch.
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Mandatory request parameters:
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- id (switch identifier)
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Optional request parameters:
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- name (new switch name)
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Response parameters:
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- name if changed
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, ATMSW_UPDATE_SCHEMA):
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return
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# get the ATM switch instance
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atmsw = self.get_device_instance(request["id"], self._atm_switches)
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if not atmsw:
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return
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response = {}
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# rename the switch if requested
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if "name" in request and atmsw.name != request["name"]:
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try:
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atmsw.name = request["name"]
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response["name"] = atmsw.name
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except DynamipsError as e:
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self.send_custom_error(str(e))
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return
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self.send_response(response)
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@IModule.route("dynamips.atmsw.allocate_udp_port")
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def atmsw_allocate_udp_port(self, request):
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"""
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Allocates a UDP port in order to create an UDP NIO for an
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ATM switch.
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Mandatory request parameters:
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- id (switch identifier)
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- port_id (port identifier)
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Response parameters:
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- port_id (port identifier)
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- lport (allocated local port)
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, ATMSW_ALLOCATE_UDP_PORT_SCHEMA):
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return
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# get the ATM switch instance
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atmsw = self.get_device_instance(request["id"], self._atm_switches)
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if not atmsw:
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return
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try:
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# allocate a new UDP port
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response = self.allocate_udp_port(atmsw)
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except DynamipsError as e:
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self.send_custom_error(str(e))
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return
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response["port_id"] = request["port_id"]
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self.send_response(response)
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@IModule.route("dynamips.atmsw.add_nio")
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def atmsw_add_nio(self, request):
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"""
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Adds an NIO (Network Input/Output) for an ATM switch.
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Mandatory request parameters:
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- id (switch identifier)
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- port (port identifier)
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- port_id (port identifier)
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- mappings (VCs/VPs mapped to the port)
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- nio (one of the following)
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- type "nio_udp"
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- lport (local port)
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- rhost (remote host)
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- rport (remote port)
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- type "nio_generic_ethernet"
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- ethernet_device (Ethernet device name e.g. eth0)
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- type "nio_linux_ethernet"
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- ethernet_device (Ethernet device name e.g. eth0)
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- type "nio_tap"
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- tap_device (TAP device name e.g. tap0)
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- type "nio_unix"
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- local_file (path to UNIX socket file)
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- remote_file (path to UNIX socket file)
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- type "nio_vde"
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- control_file (path to VDE control file)
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- local_file (path to VDE local file)
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- type "nio_null"
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Response parameters:
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- port_id (unique port identifier)
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, ATMSW_ADD_NIO_SCHEMA):
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return
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# get the ATM switch instance
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atmsw = self.get_device_instance(request["id"], self._atm_switches)
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if not atmsw:
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return
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port = request["port"]
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mappings = request["mappings"]
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try:
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nio = self.create_nio(atmsw, request)
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if not nio:
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raise DynamipsError("Requested NIO doesn't exist: {}".format(request["nio"]))
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except DynamipsError as e:
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self.send_custom_error(str(e))
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return
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try:
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atmsw.add_nio(nio, port)
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pvc_entry = re.compile(r"""^([0-9]*):([0-9]*):([0-9]*)$""")
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for source, destination in mappings.items():
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match_source_pvc = pvc_entry.search(source)
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match_destination_pvc = pvc_entry.search(destination)
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if match_source_pvc and match_destination_pvc:
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# add the virtual channels mapped with this port/nio
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source_port, source_vpi, source_vci = map(int, match_source_pvc.group(1, 2, 3))
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destination_port, destination_vpi, destination_vci = map(int, match_destination_pvc.group(1, 2, 3))
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if atmsw.has_port(destination_port):
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if (source_port, source_vpi, source_vci) not in atmsw.mapping and \
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(destination_port, destination_vpi, destination_vci) not in atmsw.mapping:
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atmsw.map_pvc(source_port, source_vpi, source_vci, destination_port, destination_vpi, destination_vci)
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atmsw.map_pvc(destination_port, destination_vpi, destination_vci, source_port, source_vpi, source_vci)
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else:
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# add the virtual paths mapped with this port/nio
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source_port, source_vpi = map(int, source.split(':'))
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destination_port, destination_vpi = map(int, destination.split(':'))
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if atmsw.has_port(destination_port):
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if (source_port, source_vpi) not in atmsw.mapping and (destination_port, destination_vpi) not in atmsw.mapping:
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atmsw.map_vp(source_port, source_vpi, destination_port, destination_vpi)
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atmsw.map_vp(destination_port, destination_vpi, source_port, source_vpi)
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except DynamipsError as e:
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self.send_custom_error(str(e))
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return
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self.send_response({"port_id": request["port_id"]})
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@IModule.route("dynamips.atmsw.delete_nio")
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def atmsw_delete_nio(self, request):
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"""
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Deletes an NIO (Network Input/Output).
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Mandatory request parameters:
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- id (switch identifier)
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- port (port identifier)
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Response parameters:
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- True on success
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:param request: JSON request
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"""
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# validate the request
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if not self.validate_request(request, ATMSW_DELETE_NIO_SCHEMA):
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return
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# get the ATM switch instance
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atmsw = self.get_device_instance(request["id"], self._atm_switches)
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if not atmsw:
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return
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port = request["port"]
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try:
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for source, destination in atmsw.mapping.copy().items():
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if len(source) == 3 and len(destination) == 3:
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# remove the virtual channels mapped with this port/nio
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source_port, source_vpi, source_vci = source
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destination_port, destination_vpi, destination_vci = destination
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if port == source_port:
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atmsw.unmap_pvc(source_port, source_vpi, source_vci, destination_port, destination_vpi, destination_vci)
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atmsw.unmap_pvc(destination_port, destination_vpi, destination_vci, source_port, source_vpi, source_vci)
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else:
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# remove the virtual paths mapped with this port/nio
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source_port, source_vpi = source
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destination_port, destination_vpi = destination
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if port == source_port:
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atmsw.unmap_vp(source_port, source_vpi, destination_port, destination_vpi)
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atmsw.unmap_vp(destination_port, destination_vpi, source_port, source_vpi)
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nio = atmsw.remove_nio(port)
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nio.delete()
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except DynamipsError as e:
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self.send_custom_error(str(e))
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return
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self.send_response(True)
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