From e135bf277eaa078824e034f09f3889dfebb39c86 Mon Sep 17 00:00:00 2001
From: Jeppe Odgaard <jo@seneco.dk>
Date: Mon, 22 Oct 2018 10:37:56 +0200
Subject: [PATCH] Added test to reproduce issue, and proposed fix in rpl-dag,
 where dag is only freed if dag_id is different.

---
 examples/multicast/Makefile                   |   5 +
 examples/multicast/root.c                     |   4 +-
 os/net/routing/rpl-classic/rpl-dag.c          |  15 +-
 tests/15-rpl-classic/02-rpl-root-reboot-2.csc | 336 ++++++++++++++++++
 4 files changed, 351 insertions(+), 9 deletions(-)
 create mode 100644 tests/15-rpl-classic/02-rpl-root-reboot-2.csc

diff --git a/examples/multicast/Makefile b/examples/multicast/Makefile
index 86c16e481..be7fb6422 100644
--- a/examples/multicast/Makefile
+++ b/examples/multicast/Makefile
@@ -12,6 +12,11 @@ include $(CONTIKI)/Makefile.identify-target
 MODULES_REL += $(TARGET)
 
 MODULES += os/net/ipv6/multicast
+MODULES += os/services/shell
+
+ifeq ($(DISABLE_AUTO_ROOT),1)
+	CFLAGS += -DDISABLE_AUTO_ROOT
+endif
 
 MAKE_ROUTING = MAKE_ROUTING_RPL_CLASSIC
 include $(CONTIKI)/Makefile.include
diff --git a/examples/multicast/root.c b/examples/multicast/root.c
index 59d5d2aa8..a95a25bcf 100644
--- a/examples/multicast/root.c
+++ b/examples/multicast/root.c
@@ -111,9 +111,9 @@ PROCESS_THREAD(rpl_root_process, ev, data)
   PROCESS_BEGIN();
 
   PRINTF("Multicast Engine: '%s'\n", UIP_MCAST6.name);
-
+#ifndef DISABLE_AUTO_ROOT
   NETSTACK_ROUTING.root_start();
-
+#endif
   prepare_mcast();
 
   etimer_set(&et, START_DELAY * CLOCK_SECOND);
diff --git a/os/net/routing/rpl-classic/rpl-dag.c b/os/net/routing/rpl-classic/rpl-dag.c
index cbaee6959..174d3b8fb 100644
--- a/os/net/routing/rpl-classic/rpl-dag.c
+++ b/os/net/routing/rpl-classic/rpl-dag.c
@@ -368,15 +368,16 @@ rpl_set_root(uint8_t instance_id, uip_ipaddr_t *dag_id)
         if(uip_ipaddr_cmp(&dag->dag_id, dag_id)) {
           version = dag->version;
           RPL_LOLLIPOP_INCREMENT(version);
-        }
-        if(dag == dag->instance->current_dag) {
-          LOG_INFO("Dropping a joined DAG when setting this node as root\n");
-          rpl_set_default_route(instance, NULL);
-          dag->instance->current_dag = NULL;
         } else {
-          LOG_INFO("Dropping a DAG when setting this node as root\n");
+          if(dag == dag->instance->current_dag) {
+            LOG_INFO("Dropping a joined DAG when setting this node as root\n");
+            rpl_set_default_route(instance, NULL);
+            dag->instance->current_dag = NULL;
+          } else {
+            LOG_INFO("Dropping a DAG when setting this node as root\n");
+          }
+          rpl_free_dag(dag);
         }
-        rpl_free_dag(dag);
       }
     }
   }
diff --git a/tests/15-rpl-classic/02-rpl-root-reboot-2.csc b/tests/15-rpl-classic/02-rpl-root-reboot-2.csc
new file mode 100644
index 000000000..44f0a3b8a
--- /dev/null
+++ b/tests/15-rpl-classic/02-rpl-root-reboot-2.csc
@@ -0,0 +1,336 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<simconf>
+  <project EXPORT="discard">[APPS_DIR]/mrm</project>
+  <project EXPORT="discard">[APPS_DIR]/mspsim</project>
+  <project EXPORT="discard">[APPS_DIR]/avrora</project>
+  <project EXPORT="discard">[APPS_DIR]/serial_socket</project>
+  <project EXPORT="discard">[APPS_DIR]/powertracker</project>
+  <simulation>
+    <title>My simulation</title>
+    <randomseed>123456</randomseed>
+    <motedelay_us>1000000</motedelay_us>
+    <radiomedium>
+      org.contikios.cooja.radiomediums.UDGM
+      <transmitting_range>50.0</transmitting_range>
+      <interference_range>100.0</interference_range>
+      <success_ratio_tx>1.0</success_ratio_tx>
+      <success_ratio_rx>1.0</success_ratio_rx>
+    </radiomedium>
+    <events>
+      <logoutput>40000</logoutput>
+    </events>
+    <motetype>
+      org.contikios.cooja.contikimote.ContikiMoteType
+      <identifier>mtype657</identifier>
+      <description>sink</description>
+      <source>[CONTIKI_DIR]/examples/multicast/sink.c</source>
+      <commands>make sink.cooja TARGET=cooja</commands>
+      <moteinterface>org.contikios.cooja.interfaces.Position</moteinterface>
+      <moteinterface>org.contikios.cooja.interfaces.Battery</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiVib</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiMoteID</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiRS232</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiBeeper</moteinterface>
+      <moteinterface>org.contikios.cooja.interfaces.RimeAddress</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiIPAddress</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiRadio</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiButton</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiPIR</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiClock</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiLED</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiCFS</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiEEPROM</moteinterface>
+      <moteinterface>org.contikios.cooja.interfaces.Mote2MoteRelations</moteinterface>
+      <moteinterface>org.contikios.cooja.interfaces.MoteAttributes</moteinterface>
+      <symbols>false</symbols>
+    </motetype>
+    <motetype>
+      org.contikios.cooja.contikimote.ContikiMoteType
+      <identifier>mtype120</identifier>
+      <description>root</description>
+      <source>[CONTIKI_DIR]/examples/multicast/root.c</source>
+      <commands>make root.cooja TARGET=cooja DISABLE_AUTO_ROOT=1</commands>
+      <moteinterface>org.contikios.cooja.interfaces.Position</moteinterface>
+      <moteinterface>org.contikios.cooja.interfaces.Battery</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiVib</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiMoteID</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiRS232</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiBeeper</moteinterface>
+      <moteinterface>org.contikios.cooja.interfaces.RimeAddress</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiIPAddress</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiRadio</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiButton</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiPIR</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiClock</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiLED</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiCFS</moteinterface>
+      <moteinterface>org.contikios.cooja.contikimote.interfaces.ContikiEEPROM</moteinterface>
+      <moteinterface>org.contikios.cooja.interfaces.Mote2MoteRelations</moteinterface>
+      <moteinterface>org.contikios.cooja.interfaces.MoteAttributes</moteinterface>
+      <symbols>false</symbols>
+    </motetype>
+    <mote>
+      <interface_config>
+        org.contikios.cooja.interfaces.Position
+        <x>50.0</x>
+        <y>0.0</y>
+        <z>0.0</z>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiMoteID
+        <id>3</id>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiRadio
+        <bitrate>250.0</bitrate>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiEEPROM
+        <eeprom>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==</eeprom>
+      </interface_config>
+      <motetype_identifier>mtype657</motetype_identifier>
+    </mote>
+    <mote>
+      <interface_config>
+        org.contikios.cooja.interfaces.Position
+        <x>100.0</x>
+        <y>0.0</y>
+        <z>0.0</z>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiMoteID
+        <id>2</id>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiRadio
+        <bitrate>250.0</bitrate>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiEEPROM
+        <eeprom>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==</eeprom>
+      </interface_config>
+      <motetype_identifier>mtype657</motetype_identifier>
+    </mote>
+    <mote>
+      <interface_config>
+        org.contikios.cooja.interfaces.Position
+        <x>150.0</x>
+        <y>0.0</y>
+        <z>0.0</z>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiMoteID
+        <id>1</id>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiRS232
+        <history>ip-addr~;routes~;routing~;</history>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiRadio
+        <bitrate>250.0</bitrate>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiEEPROM
+        <eeprom>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==</eeprom>
+      </interface_config>
+      <motetype_identifier>mtype657</motetype_identifier>
+    </mote>
+    <mote>
+      <interface_config>
+        org.contikios.cooja.interfaces.Position
+        <x>0.0</x>
+        <y>0.0</y>
+        <z>0.0</z>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiMoteID
+        <id>4</id>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiRadio
+        <bitrate>250.0</bitrate>
+      </interface_config>
+      <interface_config>
+        org.contikios.cooja.contikimote.interfaces.ContikiEEPROM
+        <eeprom>AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==</eeprom>
+      </interface_config>
+      <motetype_identifier>mtype120</motetype_identifier>
+    </mote>
+  </simulation>
+  <plugin>
+    org.contikios.cooja.plugins.SimControl
+    <width>280</width>
+    <z>1</z>
+    <height>160</height>
+    <location_x>400</location_x>
+    <location_y>0</location_y>
+  </plugin>
+  <plugin>
+    org.contikios.cooja.plugins.Visualizer
+    <plugin_config>
+      <moterelations>true</moterelations>
+      <skin>org.contikios.cooja.plugins.skins.IDVisualizerSkin</skin>
+      <skin>org.contikios.cooja.plugins.skins.GridVisualizerSkin</skin>
+      <skin>org.contikios.cooja.plugins.skins.TrafficVisualizerSkin</skin>
+      <skin>org.contikios.cooja.plugins.skins.UDGMVisualizerSkin</skin>
+      <skin>org.contikios.cooja.plugins.skins.MoteTypeVisualizerSkin</skin>
+      <viewport>0.9090909090909091 0.0 0.0 0.9090909090909091 125.81818181818181 173.0</viewport>
+    </plugin_config>
+    <width>400</width>
+    <z>2</z>
+    <height>400</height>
+    <location_x>1</location_x>
+    <location_y>1</location_y>
+  </plugin>
+  <plugin>
+    org.contikios.cooja.plugins.LogListener
+    <plugin_config>
+      <filter />
+      <formatted_time />
+      <coloring />
+    </plugin_config>
+    <width>1320</width>
+    <z>3</z>
+    <height>240</height>
+    <location_x>400</location_x>
+    <location_y>160</location_y>
+  </plugin>
+  <plugin>
+    org.contikios.cooja.plugins.TimeLine
+    <plugin_config>
+      <mote>0</mote>
+      <mote>1</mote>
+      <mote>2</mote>
+      <mote>3</mote>
+      <showRadioRXTX />
+      <showRadioHW />
+      <showLEDs />
+      <zoomfactor>500.0</zoomfactor>
+    </plugin_config>
+    <width>1720</width>
+    <z>5</z>
+    <height>166</height>
+    <location_x>0</location_x>
+    <location_y>948</location_y>
+  </plugin>
+  <plugin>
+    org.contikios.cooja.plugins.Notes
+    <plugin_config>
+      <notes>Enter notes here</notes>
+      <decorations>true</decorations>
+    </plugin_config>
+    <width>1040</width>
+    <z>4</z>
+    <height>160</height>
+    <location_x>680</location_x>
+    <location_y>0</location_y>
+  </plugin>
+  <plugin>
+    org.contikios.cooja.plugins.ScriptRunner
+    <plugin_config>
+      <script>var last_msg = 0;
+var root_id = 4;
+var ip_addresses = [];
+var rpl_done = 10000 // expected time for all motes to be part of rpl instance
+
+function MY_GENERATE_MSG(wait, string)
+{
+    last_msg += wait;
+    GENERATE_MSG(last_msg, string);
+}
+
+/* All motes starts from scratch */
+MY_GENERATE_MSG(1000, "set root");
+MY_GENERATE_MSG(rpl_done, "get ip addresses");
+MY_GENERATE_MSG(1000, "check ip addresses");
+
+/* Root restarts and acts as root before rejoining existing rpl instance */
+MY_GENERATE_MSG(1000, "remove mote " + root_id);
+MY_GENERATE_MSG(1000, "add mote " + root_id);
+MY_GENERATE_MSG(1000, "set root");
+MY_GENERATE_MSG(rpl_done, "get ip addresses");
+MY_GENERATE_MSG(1000, "check ip addresses");
+/* Set root 2nd time should be ignored */
+MY_GENERATE_MSG(100, "set root");
+MY_GENERATE_MSG(rpl_done, "get ip addresses");
+MY_GENERATE_MSG(1000, "check ip addresses");
+
+/* Root restarts and rejoins existing rpl instance */
+MY_GENERATE_MSG(1000, "remove root " + root_id);
+MY_GENERATE_MSG(1000, "add root " + root_id);
+MY_GENERATE_MSG(rpl_done, "get ip addresses");
+MY_GENERATE_MSG(1000, "check ip addresses");
+/* Root starts acting as root again */
+MY_GENERATE_MSG(1000, "set root");
+MY_GENERATE_MSG(rpl_done, "get ip addresses");
+MY_GENERATE_MSG(1000, "check ip addresses");
+
+/* Sink test */
+
+/* End test */
+MY_GENERATE_MSG(1000, "end test");
+
+while(true) {
+    YIELD();
+    if(msg.equals("set root")) {
+        m = sim.getMoteWithID(root_id);
+        write(m, "rpl-set-root 1");
+        log.log("root set\n");
+    } else if(msg.contains("get ip addresses")) {
+        var motes = sim.getMotes();
+        for(var i in motes) {
+			write(motes[i], "ip-addr");
+        }
+    } else if(msg.contains("-- fd00::20")) {
+		ip_addresses.push(msg);
+    } else if(msg.startsWith("check ip addresses")) {
+        var motes = sim.getMotes();
+        var motes_found = [];
+        for(var i in motes) {
+			var ip_address = "fd00::" + (motes[i].getID() + 200);
+			for(var j in ip_addresses) {
+				if(ip_addresses[j].contains(ip_address)) {
+					motes_found.push(motes[i].getID());
+					break;
+				}
+			}
+        }
+		if(motes.length == motes_found.length) {
+			log.log("all motes are in rpl\n");
+		} else {
+			log.log("some motes is missing, found:\n" + motes_found + "\n");
+			if(!msg.contains("skip fail")) {
+				log.testFailed(); /* Report test failure and quit */
+			}
+		}
+        ip_addresses = [];
+    } else if(msg.startsWith("remove root")) {
+		//TODO: Use id from generated msg
+        m = sim.getMoteWithID(root_id);
+        sim.removeMote(m);
+        log.log("root removed\n");
+		//TODO: Save type and position, so it can be used in add
+    } else if(msg.startsWith("add root")) {
+		//TODO: Use id from generated msg
+		//TODO: Use saved type and position
+        m = sim.getMoteTypes()[1].generateMote(sim);
+        m.getInterfaces().getMoteID().setMoteID(root_id);
+        sim.addMote(m);
+        log.log("root added\n");
+    } else if(msg.equals("end test")) {
+      break;
+    }
+}
+
+log.testOK(); /* Report test success and quit */</script>
+      <active>false</active>
+    </plugin_config>
+    <width>1011</width>
+    <z>0</z>
+    <height>700</height>
+    <location_x>259</location_x>
+    <location_y>140</location_y>
+  </plugin>
+</simconf>
+