initial support for asyncio network transport added

1 files changed, 132 insertions, 0 deletions

diff --git a/examples/v3arch/asyncio/agent/ntforg/trap-v1.py b/examples/v3arch/asyncio/agent/ntforg/trap-v1.py
new file mode 100644
index 0000000..2dd6f4a
--- /dev/null
+++ b/examples/v3arch/asyncio/agent/ntforg/trap-v1.py
@@ -0,0 +1,132 @@
+#
+# Notification Originator
+#
+# Send SNMP notification using the following options:
+#
+# * SNMPv1
+# * with community name 'public'
+# * over IPv4/UDP
+# * using asyncio network transport (available from Python 3.4)
+# * to a Manager at 127.0.0.1:162
+# * send TRAP notification
+# * with TRAP ID 'coldStart' specified as an OID
+# * include managed objects information:
+# * overriding Uptime value with 12345
+# * overriding Agent Address with '127.0.0.1'
+# * overriding Enterprise OID with 1.3.6.1.4.1.20408.4.1.1.2
+# * include managed object information '1.3.6.1.2.1.1.1.0' = 'my system'
+#
+from pysnmp.entity import engine, config
+from pysnmp.entity.rfc3413 import context
+from pysnmp.entity.rfc3413.asyncio import ntforg
+from pysnmp.carrier.asyncio.dgram import udp
+from pysnmp.proto import rfc1902
+import asyncio
+
+# Get the event loop for this thread
+loop = asyncio.get_event_loop()
+
+# Create SNMP engine instance
+snmpEngine = engine.SnmpEngine()
+
+# SNMPv1 setup
+
+# SecurityName <-> CommunityName mapping
+config.addV1System(snmpEngine, 'my-area', 'public')
+
+# Specify security settings per SecurityName (SNMPv1 -> 0)
+config.addTargetParams(snmpEngine, 'my-creds', 'my-area', 'noAuthNoPriv', 0)
+
+# Transport setup
+#
+# Setup transport endpoint and bind it with security settings yielding
+# a target name. Since Notifications could be sent to multiple Managers
+# at once, more than one target entry may be configured (and tagged).
+#
+
+# UDP/IPv4
+config.addTransport(
+    snmpEngine,
+    udp.domainName,
+    udp.UdpTransport().openClientMode()
+)
+config.addTargetAddr(
+    snmpEngine, 'my-nms-1',
+    udp.domainName, ('127.0.0.1', 162),
+    'my-creds',
+    tagList='all-my-managers'
+)
+
+# Specify what kind of notification should be sent (TRAP or INFORM),
+# to what targets (chosen by tag) and what filter should apply to
+# the set of targets (selected by tag)
+config.addNotificationTarget(
+    snmpEngine, 'my-notification', 'my-filter', 'all-my-managers', 'trap'
+)
+
+# Allow NOTIFY access to Agent's MIB by this SNMP model (1), securityLevel
+# and SecurityName
+config.addContext(snmpEngine, '')
+config.addVacmUser(snmpEngine, 1, 'my-area', 'noAuthNoPriv', (), (), (1,3,6))
+
+# Create Notification Originator App instance. 
+ntfOrg = ntforg.NotificationOriginator()
+
+ # Create default SNMP context where contextEngineId == SnmpEngineId
+snmpContext = context.SnmpContext(snmpEngine)
+
+# Prepare notification to be sent returning asyncio future object
+future = ntfOrg.sendVarBinds(
+    snmpEngine,
+    # Notification targets
+    'my-notification',
+    # SNMP Context
+    snmpContext,
+    # contextName
+    '',
+    # notification name: Generic Trap #6 (enterpriseSpecific)
+    #                    and Specific Trap 432
+    '1.3.6.1.4.1.20408.4.1.1.2.0.432',
+    # notification objects instance index
+    None,
+    # additional var-binds holding SNMPv1 TRAP details
+    [
+        # Uptime value with 12345
+        (rfc1902.ObjectName('1.3.6.1.2.1.1.3.0'),
+         rfc1902.TimeTicks(12345)),
+        # Agent Address with '127.0.0.1'
+        (rfc1902.ObjectName('1.3.6.1.6.3.18.1.3.0'),
+         rfc1902.IpAddress('127.0.0.1')),
+        # Enterprise OID with 1.3.6.1.4.1.20408.4.1.1.2
+        (rfc1902.ObjectName('1.3.6.1.6.3.1.1.4.3.0'),
+         rfc1902.ObjectName('1.3.6.1.4.1.20408.4.1.1.2')),
+        # managed object '1.3.6.1.2.1.1.1.0' = 'my system'
+        (rfc1902.ObjectName('1.3.6.1.2.1.1.1.0'),
+         rfc1902.OctetString('my system'))
+    ]
+)
+
+print('Notification is scheduled to be sent')
+
+@asyncio.coroutine
+def wait(future):
+    # a hack: wait for outgoing packet to leave us
+    yield from asyncio.sleep(1)
+    future.set_result(True)
+
+asyncio.async(wait(future))
+
+# Run asyncio main loop
+loop.run_until_complete(future)
+
+# This also terminates internal timer
+config.delTransport(
+    snmpEngine,
+    udp.domainName
+)
+
+# Finish all scheduled tasks and end the loop
+loop.stop()
+
+# Clear the event loop
+loop.close()