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#
# Commands to setup and instruct rlite
#
# Author: Vincenzo Maffione <v.maffione@nextworks.it>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301 USA
import rumba.ssh_support as ssh
import rumba.model as mod
import rumba.log as log
logger = log.get_logger(__name__)
# An experiment over the rlite implementation
class Experiment(mod.Experiment):
def __init__(self, testbed, nodes=None):
mod.Experiment.__init__(self, testbed, nodes)
def execute_commands(self, node, cmds):
ssh.execute_commands(self.testbed, node.ssh_config,
cmds, time_out=None)
def init(self):
cmds = []
if False: # ubuntu
cmds.append("apt-get update")
cmds.append("apt-get install g++ gcc cmake "
"linux-headers-$(uname -r) "
"protobuf-compiler libprotobuf-dev git --yes")
cmds.append("rm -rf ~/rlite")
cmds.append("cd ~; git clone https://github.com/vmaffione/rlite")
cmds.append("cd ~/rlite && ./configure && make "
"&& sudo make install")
# Load kernel modules
cmds.append("modprobe rlite")
cmds.append("modprobe rlite-normal")
cmds.append("modprobe rlite-shim-eth")
cmds.append("modprobe rlite-shim-udp4")
cmds.append("modprobe rlite-shim-loopback")
# Start the uipcps daemon
cmds.append("rlite-uipcps -v DBG -k 0 &> uipcp.log &")
for node in self.nodes:
self.execute_commands(node, cmds)
def create_ipcps(self):
for node in self.nodes:
cmds = []
for ipcp in node.ipcps:
# Generate the command to create the IPCP
if type(ipcp.dif) is mod.NormalDIF:
ipcp_type = 'normal'
elif type(ipcp.dif) is mod.ShimEthDIF:
ipcp_type = 'shim-eth'
elif type(ipcp.dif) is mod.ShimUDPDIF:
ipcp_type = 'shim-udp4'
else:
logger.warning(
"unknown type for DIF %s, default to loopback",
ipcp.dif.name)
ipcp_type = 'shim-loopback'
cmds.append("rlite-ctl ipcp-create %s %s %s" %
(ipcp.name, ipcp_type, ipcp.dif.name))
# Generate the command to configure the interface
# name for the shim-eth
if type(ipcp.dif) is mod.ShimEthDIF:
ipcp.ifname = 'eth1'
cmds.append("rlite-ctl ipcp-config %s netdev %s"
% (ipcp.name, ipcp.ifname))
self.execute_commands(node, cmds)
def register_ipcps(self):
for node in self.nodes:
cmds = []
for ipcp in node.ipcps:
for lower in ipcp.registrations:
cmds.append("rlite-ctl ipcp-register %s %s"
% (ipcp.name, lower.name))
self.execute_commands(node, cmds)
def enroll_ipcps(self):
for el in self.enrollments:
for e in el:
d = {'enrollee': e['enrollee'].name,
'dif': e['dif'].name,
'lower_dif': e['lower_dif'].name,
'enroller': e['enroller'].name
}
cmd = "rlite-ctl ipcp-enroll %(enrollee)s %(dif)s "\
"%(lower_dif)s %(enroller)s" % d
self.execute_commands(e['enrollee'], [cmd])
def run_prototype(self):
logger.info("rlite: setting up")
self.init()
logger.info("rlite: software initialized on all nodes")
self.create_ipcps()
logger.info("rlite: IPCPs created on all nodes")
self.register_ipcps()
logger.info("rlite: IPCPs registered to their lower DIFs on all nodes")
self.enroll_ipcps()
logger.info("rlite: enrollment completed in all DIFs")
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