Something like this dhcp rest responder.
The api is:
Set dhcp in a switch PUT /dhcp/add/{dpid} params
'ipaddress': '192.168.1.1'
'netmask': '255.255.255.0'
'address': '0a:e4:1c:d1:3e:44'
'dns': '8.8.8.8'
'startip':'192.168.1.100'
'endip': '192.168.1.200'
Set static ip in a host PUT /dhcp/host/{dpid} params
'address': '00:00:00:d3:fc:57'
'ipaddress': '192.168.1.2'
'hostname': 'huehuehue'
'dns': '8.8.8.8' * optional
This file is not complete (needs delete functions) but you will get so util.
2016-12-15 22:34 GMT-06:00 Munther Numan :
> Greeting ,
>
> Dear all,
>
>
>
> I just would like to ask you if I need to add dhcp server in my
> experiment, is any example code for it or there is already code for dhcp
> server with Ryu controller?
>
> Best Regards
>
> Munther Numan
> Master Student
> Faculty of Engineering
> University Putra Malaysia
>
>
>
>
>
> --
> Check out the vibrant tech community on one of the world's most
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--
"La utopía sirve para caminar" Fernando Birri
# Copyright (C) 2013 Nippon Telegraph and Telephone Corporation.
# Copyright (C) 2013 YAMAMOTO Takashi
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# a simple ICMP Echo Responder
import json
from ryu.app.wsgi import ControllerBase, WSGIApplication, route
from ryu.base import app_manager
from ryu.controller import ofp_event
from ryu.controller.handler import CONFIG_DISPATCHER, MAIN_DISPATCHER
from ryu.controller.handler import set_ev_cls
from ryu.lib import addrconv, dpid as dpid_lib
from ryu.lib.packet import dhcp
from ryu.lib.packet import ethernet
from ryu.lib.packet import ipv4
from ryu.lib.packet import packet
from ryu.lib.packet import udp
from ryu.ofproto import ofproto_v1_3
from webob import Response
class DHCPResponder(app_manager.RyuApp):
"""
use example
self.switches = {
'81474781969487': {
'ipaddress': '192.168.1.1',
'netmask': '255.255.255.0',
'address': '0a:e4:1c:d1:3e:44',
'dns': '8.8.8.8',
'hosts': {
'00:00:00:d3:fc:57': {
'hostname': 'huehuehue',
'dns': '8.8.8.8',
'ipaddress': '192.168.1.2',
}
},
'available_address': [
'192.168.1.10',
'192.168.1.20'
]
}}
"""
OFP_VERSIONS = [ofproto_v1_3.OFP_VERSION]
_CONTEXTS = {'wsgi': WSGIApplication}
def __init__(self, *args, **kwargs):
super(DHCPResponder, self).__init__(*args, **kwargs)
self.acks = {}
self.switches = {}
wsgi = kwargs['wsgi']
wsgi.register(DHCPController,
{'dhcp_server': self})
def get_server_info(self, datapath):
if datapath in self.switches:
ipaddress = addrconv.ipv4.text_to_bin(
self.switches[datapath]['ipaddress'])
netmask = addrconv.ipv4.text_to_bin(
self.switches[datapath]['netmask'])
address = str(self.switches[datapath]['address'])
return ipaddress, netmask, address, str(self.switches[datapath]['ipaddress'])
return None, None, None, None
def get_host_info(self, datapath, hostaddress):
ipaddress = hostname = dns = None
if datapath in self.switches:
if hostaddress in self.acks:
info = self.acks[hostaddress]
return str(info['ipaddress']), str(info['hostname']), info['dns']
if hostaddress in self.switches[datapath]['hosts']:
confhost = self.switches[datapath]['hosts'][hostaddress]
ipaddress = str(confhost['ipaddress'])
hostname = str(confhost['hostname'])
dns = addrconv.ipv4.text_to_bin(confhost['dns'])
if not ipaddress and self.switches[datapath]['available_address']:
ipaddress = str(
self.switches[datapath]['available_address'].pop())
num = ipaddress.split('.')[-1]
hostname = str("machine" + num)
