Add test for snmp v2 traps

docker/test/Dockerfile.native

@@ -150,6 +150,8 @@ RUN echo "agentaddress  127.0.0.1" >> /etc/snmp/snmpd.conf
 RUN echo "rwcommunity   public  localhost" >> /etc/snmp/snmpd.conf
 RUN echo "agentxsocket  unix:/var/run/snmp.sock" >> /etc/snmp/snmpd.conf
 RUN echo "agentxperms   777 777" >> /etc/snmp/snmpd.conf
+RUN echo "trap2sink     localhost public 162" >> /etc/snmp/snmpd.conf
+RUN echo "disableAuthorization yes" >> /etc/snmp/snmptrapd.conf
 
 # Dont need to expose restconf ports for internal tests
 #EXPOSE 80/tcp

test/test_snmp_notifications.sh

@@ -0,0 +1,158 @@
+#!/usr/bin/env bash
+# SNMP notifications (SNMP v2 traps) MIB test
+
+# Magic line must be first in script (see README.md)
+s="$_" ; . ./lib.sh || if [ "$s" = $0 ]; then exit 0; else return 0; fi
+
+# Re-use main example backend state callbacks
+APPNAME=example
+
+if [ ${ENABLE_NETSNMP} != "yes" ]; then
+    echo "Skipping test, Net-SNMP support not enabled."
+    rm -rf $dir
+    if [ "$s" = $0 ]; then exit 0; else return 0; fi
+fi
+
+: ${PERIOD:=2}
+
+cfg=$dir/conf.xml
+fyang=$dir/stream.yang
+
+# AgentX unix socket
+SOCK=/var/run/snmp.sock
+
+cat <<EOF > $cfg
+<clixon-config xmlns="http://clicon.org/config">
+  <CLICON_CONFIGFILE>$cfg</CLICON_CONFIGFILE>
+  <CLICON_YANG_DIR>${YANG_INSTALLDIR}</CLICON_YANG_DIR>
+  <CLICON_YANG_DIR>${YANG_STANDARD_DIR}</CLICON_YANG_DIR>
+  <CLICON_YANG_DIR>${MIB_GENERATED_YANG_DIR}</CLICON_YANG_DIR>
+  <CLICON_YANG_MAIN_FILE>$fyang</CLICON_YANG_MAIN_FILE>
+  <CLICON_SOCK>$dir/$APPNAME.sock</CLICON_SOCK>
+  <CLICON_BACKEND_DIR>/usr/local/lib/$APPNAME/backend</CLICON_BACKEND_DIR>
+  <CLICON_BACKEND_PIDFILE>/usr/local/var/run/$APPNAME.pidfile</CLICON_BACKEND_PIDFILE>
+  <CLICON_XMLDB_DIR>$dir</CLICON_XMLDB_DIR>
+  <CLICON_SNMP_AGENT_SOCK>unix:$SOCK</CLICON_SNMP_AGENT_SOCK>
+  <CLICON_SNMP_MIB>example</CLICON_SNMP_MIB>
+  <CLICON_VALIDATE_STATE_XML>true</CLICON_VALIDATE_STATE_XML>
+  <CLICON_STREAM_DISCOVERY_RFC5277>true</CLICON_STREAM_DISCOVERY_RFC5277>
+  <CLICON_STREAM_DISCOVERY_RFC8040>true</CLICON_STREAM_DISCOVERY_RFC8040>
+  <CLICON_STREAM_PATH>streams</CLICON_STREAM_PATH>
+  <CLICON_STREAM_RETENTION>60</CLICON_STREAM_RETENTION>
+</clixon-config>
+EOF
+
+cat <<EOF > $fyang
+module example {
+   namespace "urn:example:clixon";
+   prefix ex;
+   import ietf-yang-smiv2 {
+      prefix "smiv2";
+   }
+   organization "Example, Inc.";
+   contact "support at example.com";
+   description "Example Notification Data Model Module.";
+   revision "2016-07-07" {
+      description "Initial version.";
+      reference "example.com document 2-9976.";
+   }
+   notification event {
+      smiv2:oid "1.3.6.1.4.1.8072.200.1";
+      description "Example notification event.";
+      leaf event-class {
+         smiv2:oid "1.3.6.1.4.1.8072.200.1.1";
+         type string;
+         description "Event class identifier.";
+      }
+      container reportingEntity {
+         smiv2:oid "1.3.6.1.4.1.8072.200.1.2";
+         description "Event specific information.";
+         leaf card {
+            smiv2:oid "1.3.6.1.4.1.8072.200.1.2.1";
+            type string;
+            description "Line card identifier.";
+         }
+      }
+      leaf severity {
+         smiv2:oid "1.3.6.1.4.1.8072.200.1.3";
+         type string;
+         description "Event severity description.";
+      }
+   }
+   container state {
+      config false;
+      description "state data for the example application (must be here for example get operation)";
+      leaf-list op {
+         type string;
+      }
+   }
+}
+EOF
+
+function testinit(){
+    new "test params: -s init -f $cfg -- -n ${PERIOD}"
+    if [ $BE -ne 0 ]; then
+    # Kill old backend and start a new one
+    new "kill old backend"
+    sudo clixon_backend -zf $cfg
+    if [ $? -ne 0 ]; then
+        err "Failed to start backend"
+    fi
+
+    sudo pkill -f clixon_backend
+
+    new "Starting backend"
+    start_backend -s init -f $cfg -- -n ${PERIOD}
+    fi
+
+    new "wait backend"
+    wait_backend
+
+    if [ $SN -ne 0 ]; then
+        # Kill old clixon_snmp, if any
+        new "Terminating any old clixon_snmp processes"
+        sudo killall -q clixon_snmp
+        
+        new "Starting clixon_snmp"
+        # XXX augmented objects seem to be registered twice: error: duplicate registration: MIB modules snmpSetSerialNo and AgentX subagent 52, session 0x562087a70e20, subsession 0x562087a820c0 (oid .1.3.6.1.6.3.1.1.6.1).
+
+        start_snmp $cfg
+    fi
+
+    new "wait snmp"
+    wait_snmp
+}
+
+function testexit(){
+    stop_snmp
+    if [ $BE -ne 0 ]; then
+        new "Kill backend"
+        # Check if premature kill
+        pid=$(pgrep -u root -f clixon_backend)
+        if [ -z "$pid" ]; then
+            err "backend already dead"
+        fi
+        # kill backend
+        stop_backend -f $cfg
+    fi
+}
+
+new "SNMP tests"
+testinit
+
+
+new "Start snmptrapd and listen for traps - expect 2-3 notifications"
+ret=$(timeout 6s snmptrapd -f -Ot -Lo -F\"%#v\\n\")
+expect="DISMAN-EVENT-MIB::sysUpTimeInstance = [0-9]*, SNMPv2-MIB::snmpTrapOID.0 = OID: NET-SNMP-MIB::netSnmp.200.1, NET-SNMP-MIB::netSnmp.200.1.1 = STRING: \"fault\", NET-SNMP-MIB::netSnmp.200.1.2.1 = STRING: \"Ethernet0\", NET-SNMP-MIB::netSnmp.200.1.3 = STRING: \"major\""
+match=$(echo "$ret" | grep -Eo "$expect")
+if [ -z "$match" ]; then
+    err "$expect" "$ret"
+fi
+
+new "Cleaning up"
+testexit
+
+rm -rf $dir
+
+new "endtest"
+endtest