150 lines
4.1 KiB
Python
150 lines
4.1 KiB
Python
from mpParamXp import MpParamXp
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class MpExperience:
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PING = "ping"
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NCPV = "ncpv"
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def __init__(self, xpParam, mpTopo, mpConfig):
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self.xpParam = xpParam
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self.mpTopo = mpTopo
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self.mpConfig = mpConfig
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print(self.xpParam)
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def classicRun(self):
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self.prepare()
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self.run()
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self.clean()
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def prepare(self):
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self.setupSysctl()
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self.runTcpDump()
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self.runNetemAt()
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pass
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def runNetemAt(self):
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if not self.mpTopo.changeNetem == "yes":
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print("I don't need to change netem")
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return
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print("Will change netem config on the fly")
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links = self.mpTopo.getLinkCharacteristics()
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i = 0
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for l in links:
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lname = self.mpConfig.getMidLeftName(i)
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rname = self.mpConfig.getMidRightName(i)
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lbox = self.mpTopo.getHost(lname)
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lif = self.mpConfig.getMidL2RInterface(i)
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rif = self.mpConfig.getMidR2LInterface(i)
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rbox = self.mpTopo.getHost(rname)
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print(str(lname) + " " + str(lif))
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print(str(rname) + " " + str(rif))
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print("boxes " + str(lbox) + " " + str(rbox))
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cmd = l.buildNetemCmd(lif)
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print(cmd)
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self.mpTopo.commandTo(lbox, cmd)
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cmd = l.buildNetemCmd(rif)
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print(cmd)
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self.mpTopo.commandTo(rbox, cmd)
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i = i + 1
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def run(self):
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pass
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def clean(self):
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self.mpTopo.commandTo(self.mpConfig.client,
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"killall tcpdump")
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self.mpTopo.commandTo(self.mpConfig.server,
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"killall tcpdump")
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self.backUpSysctl()
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pass
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def setupSysctl(self):
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self.saveSysctl()
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self.writeSysctl()
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def saveSysctl(self):
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self.sysctlBUP = {}
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self._saveSysctl(MpParamXp.sysctlKey, self.sysctlBUP)
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self.sysctlBUPC = {}
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self._saveSysctl(MpParamXp.sysctlKeyClient, self.sysctlBUPC,
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ns = True, who = self.mpConfig.client)
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self.sysctlBUPS = {}
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self._saveSysctl(MpParamXp.sysctlKeyServer, self.sysctlBUPS,
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ns = True, who = self.mpConfig.server)
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def _saveSysctl(self, sysctlDic, sysctlBUP, ns = False, who = None):
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for k in sysctlDic:
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sysctlKey = sysctlDic[k]
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cmd = self.cmdReadSysctl(sysctlKey)
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if not ns:
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val = self.mpTopo.notNSCommand(cmd)
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else:
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val = self.mpTopo.commandTo(who, cmd)
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if val == "Error":
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print("oooops can't get sysctl " + sysctlKey)
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else:
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sysctlBUP[k] = val.split(" ",2)[2][:-1]
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def cmdReadSysctl(self, key):
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s = "sysctl " + key
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return s
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def cmdWriteSysctl(self, key, value):
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s = self.cmdReadSysctl(key)
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s = s + "=\"" + str(value) + "\""
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return s
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def writeSysctl(self):
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self._writeSysctl(MpParamXp.sysctlKey, self.sysctlBUP)
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self._writeSysctl(MpParamXp.sysctlKeyClient, self.sysctlBUPC,
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ns = True, who = self.mpConfig.client)
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self._writeSysctl(MpParamXp.sysctlKeyServer, self.sysctlBUPS,
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ns = True, who = self.mpConfig.server)
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def _writeSysctl(self, sysctlDic, sysctlBUP, ns = False, who = None):
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for k in sysctlBUP:
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sysctlKey = sysctlDic[k]
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sysctlValue = self.xpParam.getParam(k)
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cmd = self.cmdWriteSysctl(sysctlKey,sysctlValue)
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if not ns:
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val = self.mpTopo.notNSCommand(cmd)
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else:
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val = self.mpTopo.commandTo(who, cmd)
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if val == "Error":
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print("oooops can't set sysctl " + sysctlKey)
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def backUpSysctl(self):
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self._backUpSysctl(MpParamXp.sysctlKey, self.sysctlBUP)
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self._backUpSysctl(MpParamXp.sysctlKeyClient, self.sysctlBUPC,
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ns = True, who = self.mpConfig.client)
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self._backUpSysctl(MpParamXp.sysctlKeyServer, self.sysctlBUPS,
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ns = True, who = self.mpConfig.server)
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def _backUpSysctl(self, sysctlDic, sysctlBUP, ns = False, who = None):
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for k in sysctlBUP:
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sysctlKey = sysctlKey[k]
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sysctlValue = sysctlBUP[k]
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cmd = self.cmdWriteSysctl(sysctlKey,sysctlValue)
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if not ns:
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val = self.mpTopo.notNSCommand(cmd)
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else:
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val = self.mpTopo.commandTo(who, cmd)
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if val == "Error":
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print("oooops can't set sysctl " + sysctlKey)
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def runTcpDump(self):
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#todo : replace filename by cst
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cpcap = self.xpParam.getParam(MpParamXp.CLIENTPCAP)
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spcap = self.xpParam.getParam(MpParamXp.SERVERPCAP)
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if cpcap == "yes" :
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self.mpTopo.commandTo(self.mpConfig.client,
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"tcpdump -i any -w client.pcap &")
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if spcap == "yes" :
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self.mpTopo.commandTo(self.mpConfig.client,
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"tcpdump -i any -w server.pcap &")
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if spcap == "yes" or cpcap == "yes":
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self.mpTopo.commandTo(self.mpConfig.client,"sleep 5")
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