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#
# This file is part of pysnmp-apps software.
#
# Copyright (c) 2005-2016, Ilya Etingof <ilya@glas.net>
# License: http://pysnmp.sf.net/license.html
#
from pysnmp_apps.cli import base
from pysnmp import error
# Usage
def getUsage():
return "\
SNMP message processing options:\n\
-v VERSION SNMP version: \"1\"|\"2c\"|\"3\"\n\
"
# Scanner
class MPScannerMixIn:
def t_version(self, s):
r' -v '
self.rv.append(base.ConfigToken('version'))
# Parser
class MPParserMixIn:
def p_mpSpec(self, args):
'''
Option ::= SnmpVersionId
SnmpVersionId ::= version string
SnmpVersionId ::= version whitespace string
'''
# Generator
class __MPGenerator(base.GeneratorTemplate):
_versionIdMap = {
'1': 0,
'2': 1,
'2c': 1,
'3': 3
}
def n_SnmpVersionId(self, cbCtx, node):
snmpEngine, ctx = cbCtx
if len(node) > 2:
versionId = node[2].attr
else:
versionId = node[1].attr
if versionId in self._versionIdMap:
ctx['versionId'] = self._versionIdMap[versionId]
else:
raise error.PySnmpError('Bad version value %s' % versionId)
def generator(cbCtx, ast):
snmpEngine, ctx = cbCtx
__MPGenerator().preorder((snmpEngine, ctx), ast)
# Commit defaults
if 'versionId' not in ctx:
ctx['versionId'] = 3
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