changes

project.py

@@ -1,3 +1,5 @@
+import sys
+import os
 
 from time import sleep
 from mininet.cli import CLI
@@ -6,8 +8,10 @@ from mininet.util import dumpNodeConnections
 from mininet.log import setLogLevel, info
 from mininet.link import TCLink
 
-from project.node import BATMANRouter, LinuxRouter, OLSRRouter
-from project.topo import GraphmlTopo
+sys.path.insert(0, os.getcwd() + '/project')
+
+from project.node import BATMANDRouter, LinuxRouter, OLSRRouter
+from project.topo import GraphmlTopoUniqueSubnet, GraphmlTopoDifferentSubnet
 
 def monitor_test(net):
     for host in net.hosts:
@@ -28,15 +32,15 @@ def enable_olsrd(net):
         
 
 
-hosts = {'linuxrouter': LinuxRouter, 'olsrrouter': OLSRRouter, 'batmanrouter': BATMANRouter}
-topos = {'gmltopo': GraphmlTopo}
+hosts = {'linuxrouter': LinuxRouter, 'olsrrouter': OLSRRouter, 'batmanrouter': BATMANDRouter}
+topos = {'gmltopo1': GraphmlTopoUniqueSubnet, 'gmltopo2': GraphmlTopoDifferentSubnet}
 
 CLI.do_enable_olsrd = do_enable_olsrd
 
 
 def perfTest():
 
-    topo = GraphmlTopo(filename='rural-gephi.graphml')
+    topo = GraphmlTopoDifferentSubnet(filename='rural-gephi.graphml')
     net = Mininet(topo=topo, link=TCLink, host=LinuxRouter)
     net.start()
 

project/node.py

@@ -1,4 +1,6 @@
+from signal import SIGINT
 from mininet.node import Node
+from mininet.util import moveIntf
 
 class LinuxRouter(Node):
 
@@ -9,26 +11,83 @@ class LinuxRouter(Node):
         self.cmd('sysctl net.ipv4.ip_forward=0')
         super(LinuxRouter, self).terminate()
 
+    def startRTMonitor(self):
+        self.popenRTMonitor = self.popen('bash routing-table-monitor.sh')
+
+    def stopRTMonitor(self):
+        self.popenRTMonitor.send_signal(SIGINT)
+        self.popenRTMonitor.wait()
+
 
 class OLSRRouter(LinuxRouter):
 
     def config(self, **params):
         super(OLSRRouter, self).config(**params)
-        self.servicePid = self.cmd('olsrd -nofork -i ' + ' '.join(self.intfNames()) + ' >/dev/null 2>&1 & echo $!')
-        print(self.servicePid)
+        self.popenOLSR = self.popen('olsrd', '-nofork' , '-i', *self.intfNames())
 
     def terminate(self):
-        self.cmd('kill ', self.servicePid)
+        self.popenOLSR.send_signal(SIGINT)
+        self.popenOLSR.wait()
         super(OLSRRouter, self).terminate()
 
 
-class BATMANRouter(LinuxRouter):
+class OLSRRouterMonitored(OLSRRouter):
+
+    def config(self, **params):
+        self.startRTMonitor()
+        super(OLSRRouterMonitored, self).config(**params)
+
+    def terminate(self):
+        if self.popenRTMonitor:
+            self.popenRTMonitor.send_signal(SIGINT)
+        super(OLSRRouterMonitored, self).terminate()
+
+
+
+class BATMANDRouter(LinuxRouter):
+
+    def config(self, **params):
+        super(BATMANDRouter, self).config(**params)
+        batman_param=[]#sum([['-a', i.IP()+'/32'] for i in self.intfList()],[])
+        batman_param.extend(self.intfNames())
+        self.cmd('batmand', *batman_param)
+
+    def terminate(self):
+        # self.popenBATMAND.send_signal(SIGINT)
+        # self.popenBATMAND.wait()
+        super(BATMANDRouter, self).terminate()
+
+
+class BATMANDRouterMonitored(BATMANDRouter):
+
+    def config(self, **params):
+        self.startRTMonitor()
+        super(BATMANDRouterMonitored, self).config(**params)
+
+    def terminate(self):
+        if self.popenRTMonitor:
+            self.popenRTMonitor.send_signal(SIGINT)
+        super(BATMANDRouterMonitored, self).terminate()
+
+
+class BATMANADVRouter(LinuxRouter):
 
     def config(self, **params):
-        super(BATMANRouter, self).config(**params)
-        self.servicePid = self.cmd('batmand ' + ' '.join(self.intfNames()) + '&  echo $!')
-        print(self.servicePid)
+        super(BATMANADVRouter, self).config(**params)
+        if self.cmd('lsmod', '|', 'grep', '-q', 'batman') is not 0:
+            self.cmd('modprobe', 'batman-adv')
+
+        self.batman_intf = '%s-bat0' % self.name
+        self.cmd()
+
+        for intf in self.intfNames():
+            self.cmd('batctl', '-m', self.batman_intf, 'if', 'add', intf)
+        
+        moveIntf(self.batman_intf, self)
+        id = int(self.name[1:])
+        self.cmd('ip', 'address', 'add', '192.168.123.%i/24' % id, 'dev', self.batman_intf)
+        self.cmd('ip', 'link', 'set', 'up', 'dev', self.batman_intf)
 
     def terminate(self):
-        self.cmd('kill ' + self.servicePid)
-        super(BATMANRouter, self).terminate()
+        self.cmd('batctl', '-m', self.batman_intf, 'if', 'destroy')
+        super(BATMANADVRouter, self).terminate()

project/topo.py

@@ -1,22 +1,13 @@
 #!/usr/bin/env python
 
-
-from sys import argv
-
 import xml.etree.ElementTree as ET
 
 from mininet.topo import Topo
 from mininet.link import TCLink
 
-
-# It would be nice if we didn't have to do this:
-# pylint: disable=arguments-differ
-
-
 class GraphmlTopo(Topo):
 
     def build(self, filename='topology.graphml'):
-        
         positions = dict()
 
         try:
@@ -27,10 +18,9 @@ class GraphmlTopo(Topo):
 
         for node in graph.iter('{http://graphml.graphdrawing.org/xmlns}node'):
             node_id = int(node.get('id')) + 1
-            privateDirs = ['/var/log','/var/run']
 
-            self.addHost('h%i' % node_id, privateDirs=privateDirs) #,
-                             #cls=LinuxRouter)
+            privateDirs = ['/var/log','/var/run']
+            self.addHost('h%i' % node_id, privateDirs=privateDirs)
 
             x_pos = node.find('.//data[@key="x"]')
             y_pos = node.find('.//data[@key="y"]')
@@ -43,22 +33,41 @@ class GraphmlTopo(Topo):
             source = int(link.get('source')) + 1
             target = int(link.get('target')) + 1
 
-            intfName_s, addr1, params_s = self.format_intf_params(link_id, source)
-            intfName_t, addr2, params_t = self.format_intf_params(link_id, target)
-            
-            linkopts = dict()  # dict(bw=10, delay='5ms', loss=20, max_queue_size=1000, use_htb=True)
+            linkopts = self.format_intf_params(source, target, link_id) 
+            # dict(bw=10, delay='5ms', loss=20, max_queue_size=1000, use_htb=True)
+            # linkopts.update(self.)
             # to implement a function which from nodes positions return linkopts
-            self.addLink('h%i' % source, 'h%i' % target, key=link_id, cls=TCLink,
-                    intfName1=intfName_s, addr1=addr1, params1=params_s,
-                    intfName2=intfName_t, addr2=addr2 ,params2=params_t,
-                **linkopts)
+            self.addLink('h%i' % source, 'h%i' % target, cls=TCLink, **linkopts)
+
+    def format_intf_params(self, source_id, target_id, link_id):
+        return dict()
+
+
+class GraphmlTopoUniqueSubnet(GraphmlTopo):
+
+    def format_intf_params(self, source_id, target_id, link_id):
+
+        intf_name_s  = 'h%i-eth%i' % (source_id, link_id)
+        intf_name_t  = 'h%i-eth%i' % (target_id, link_id)
+
+        addr_s = '00:00:00:00:%02i:%02i' % (source_id, link_id)
+        addr_t = '00:00:00:00:%02i:%02i' % (target_id, link_id)
+
+        ip_s = '10.0.%i.%i/16' % (source_id, link_id)
+        ip_t = '10.0.%i.%i/16' % (target_id, link_id)
+
+        return {'addr1' : addr_s, 'params1' : {'ip': ip_s},
+                'addr2' : addr_t, 'params2' : {'ip': ip_t}}
+
+class GraphmlTopoDifferentSubnet(GraphmlTopo):
     
+    def format_intf_params(self, source_id, target_id, link_id):
         
-    def format_intf_params(self, link_id, node_id):
-        intf_name  = 'h%i-eth%i' % (node_id, link_id)
-        addr = '00:00:00:00:%02i:%02i' % (link_id, node_id)
-        ip = '10.0.%i.%i/24' % (link_id, node_id)
-        params = {'ip': ip}
-        return intf_name, addr, params
+        addr_s = '00:00:00:00:%02i:%02i' % (source_id, link_id)
+        addr_t = '00:00:00:00:%02i:%02i' % (target_id, link_id)
 
+        ip_s = '10.0.%i.%i/24' % (link_id, source_id)
+        ip_t = '10.0.%i.%i/24' % (link_id, target_id)
 
+        return {'addr1' : addr_s, 'params1' : {'ip': ip_s},
+                'addr2' : addr_t, 'params2' : {'ip': ip_t}}

routing-table-monitor.sh

@@ -1,9 +1,36 @@
 name="$(ifconfig | awk -F- '$2 ~ /eth/ { print  $1; exit;}')"
-log_directory="./logs/"
-log_file="${name}_routingtable.log"
-log_path="${log_directory}${log_file}"
 
-echo > "$log_path"
+log_directory=$HOME/logs/
+log_file=${name}-rt.log
+
+
+while [[ $# -gt 0 ]]; do
+  case $1 in
+    -c|--cmd)
+      RT_COMMAND="$2"
+      shift # past argument
+      shift # past value
+      ;;
+    -o|--output)
+      OUTPUT_FILE="$2"
+      shift # past argument
+      shift # past value
+      ;;
+    -*|--*)
+      echo "Unknown option $1"
+      exit 1
+      ;;
+  esac
+done
+
+: "${RT_COMMAND:='route -n'}"
+: "${OUTPUT_FILE:=${log_directory}${log_file}}"
+
+echo "COMMAND: $RT_COMMAND"
+echo "OUTPUT: $OUTPUT_FILE"
+
+echo > "$OUTPUT_FILE"
+echo "starting at: $(date +"%T %N")" >> "$OUTPUT_FILE"
 
 function parse_diff () {
 
@@ -18,12 +45,13 @@ function parse_diff () {
 
 function log () {
     while IFS= read -r line; do
-        echo -e "$(date +"%Y-%m-%d_%H-%M-%S")\t$2\t$line" >> ${log_path}
+        echo "here"
+        echo -e "$(date +"%T %N")\t$2\t$line" >> "$OUTPUT_FILE"
     done <<< "$1"
 }
 
 
-curr=$(route -n)
+curr=$($RT_COMMAND)
 atstart="$(echo "$curr" | sed '1,2d')"
 log "$atstart" "add:"
 
@@ -31,8 +59,10 @@ log "$atstart" "add:"
 while true;
 do
     prev="$curr"
-    curr=$(route -n)
+    curr=$($RT_COMMAND)
 
     diff_out=$(diff -u <(echo "$prev") <(echo "$curr"))
     [ $? -eq 0 ] || parse_diff "$diff_out"
+    sleep 0.5
+    
 done

whole-project.py

@@ -41,7 +41,7 @@ class GraphmlTopo(Topo):
         try:
             graph = ET.parse(filename).getroot()
         except Exception as error:
-            print('oops: ', error)
+            print(error)
             exit(1)
 
         for node in graph.iter('{http://graphml.graphdrawing.org/xmlns}node'):
@@ -92,7 +92,7 @@ class GraphmlTopo(Topo):
         return intf_name, addr, params
 
 
-def calculate_link_params(pos_1, pos_2, x=2):
+def eval_link_params(pos_1, pos_2, x=2):
     distance = sqrt((pos_1['x'] + pos_2['x'])^2 - (pos_1['y'] + pos_2['y'])^2)
     Tx_W = 2
     Rx_W = 2
@@ -164,6 +164,12 @@ class BATMANDRouterMonitored(BATMANDRouter):
             self.popenRTMonitor.send_signal(SIGINT)
         super(BATMANDRouterMonitored, self).terminate()
 
+    def startRTMonitor(self):
+        self.popenRTMonitor = self.popen(
+            'bash routing-table-monitor.sh -c "ip route show table 66"'
+        )
+
+
 
 class BATMANADVRouter(LinuxRouter):
 
@@ -258,7 +264,7 @@ def perfTestBatman():
     net = Mininet(topo=topo, link=TCLink, host=BATMANDRouterMonitored)
     net.start()
 
-    routing_table_monitor_test(net)
+    #routing_table_monitor_test(net)
     info("Dumping host connections\n")
     dumpNodeConnections(net.hosts)
     CLI(net)
@@ -268,5 +274,5 @@ def perfTestBatman():
 if __name__ == '__main__':
     setLogLevel('info')
     # Prevent test_simpleperf from failing due to packet loss
-    perfTest()
-    #perfTestBatman()
+    #perfTest()
+    perfTestBatman()