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#!/usr/bin/env python
#
# This file is part of pysnmp-apps software.
#
# Copyright (c) 2005-2016, Ilya Etingof <ilya@glas.net>
# License: http://pysnmp.sf.net/license.html
#
# Command-line MIB browser
#
import sys, traceback
from pyasn1.type import univ
from pysnmp.entity import engine
from pysnmp.proto import rfc3412
from pysnmp.smi import builder
from pysnmp_apps.cli import main, pdu, mibview, base
from pysnmp.smi.error import NoSuchObjectError
from pysnmp import error
from pyasn1.type import univ
def getUsage():
return "Usage: %s [OPTIONS] <PARAMETERS>\n\
%s%s\
TRANSLATE options:\n\
-T TRANSOPTS Set various options controlling report produced:\n\
d: print full details of the given OID\n\
a: dump the loaded MIB in a trivial form\n\
l: enable labeled OID report\n\
o: enable OID report\n\
s: enable dotted symbolic report\n\
%s\n" % (sys.argv[0],
main.getUsage(),
mibview.getUsage(),
pdu.getReadUsage())
# Construct c/l interpreter for this app
class Scanner(mibview.MibViewScannerMixIn,
pdu.ReadPduScannerMixIn,
main.MainScannerMixIn,
base.ScannerTemplate):
def t_transopts(self, s):
r' -T '
self.rv.append(base.ConfigToken('transopts'))
class Parser(mibview.MibViewParserMixIn,
pdu.ReadPduParserMixIn,
main.MainParserMixIn,
base.ParserTemplate):
def p_transOptions(self, args):
'''
Cmdline ::= Options whitespace Params
Cmdline ::= Options Params
Option ::= TranslateOption
TranslateOption ::= transopts whitespace string
TranslateOption ::= transopts string
'''
class __Generator(base.GeneratorTemplate):
def n_TranslateOption(self, cbCtx, node):
snmpEngine, ctx = cbCtx
mibViewProxy = ctx['mibViewProxy']
if len(node) > 2:
opt = node[2].attr
else:
opt = node[1].attr
for c in opt:
mibViewProxy.translateMassMode = 1
if c == 'd':
mibViewProxy.translateFullDetails = 1
mibViewProxy.translateMassMode = 0
elif c == 'a':
mibViewProxy.translateTrivial = 1
elif c == 'l':
mibViewProxy.translateLabeledOid = 1
elif c == 'o':
mibViewProxy.translateNumericOid = 1
elif c == 's':
mibViewProxy.translateSymbolicOid = 1
else:
raise error.PySnmpError('unsupported sub-option \"%s\"' % c)
def generator(cbCtx, ast):
snmpEngine, ctx= cbCtx
return __Generator().preorder((snmpEngine, ctx), ast)
class MibViewProxy(mibview.MibViewProxy):
# MIB translate options
translateFullDetails = 0
translateTrivial = 0
translateLabeledOid = 0
translateNumericOid = 0
translateSymbolicOid = 0
# Implies SNMPWALK mode
translateMassMode = 0
# Override base class defaults
buildEqualSign = 0
_null = univ.Null()
def getPrettyOidVal(self, mibViewController, oid, val):
prefix, label, suffix = mibViewController.getNodeName(oid)
modName, nodeDesc, _suffix = mibViewController.getNodeLocation(prefix)
mibNode, = mibViewController.mibBuilder.importSymbols(
modName, nodeDesc
)
out = ''
if self.translateFullDetails:
if suffix:
out = '%s::%s' % (modName, nodeDesc)
out = out + ' [ %s ]' % '.'.join([ str(x) for x in suffix ])
out = out + '\n'
else:
out = out + '%s::%s\n%s ::= { %s }' % (
modName,
nodeDesc,
mibNode.asn1Print(),
' '.join(
map(lambda x,y: '%s(%s)' % (y, x), prefix, label)
)
)
elif self.translateTrivial:
out = '%s ::= { %s %s' % (
len(label) > 1 and label[-2] or ".", label[-1], prefix[-1]
)
if suffix:
out = out + ' [ %s ]' % '.'.join([ str(x) for x in suffix ])
out = out + ' }'
elif self.translateLabeledOid:
out = '.' + '.'.join(
map(lambda x,y: '%s(%s)' % (y, x), prefix, label)
)
if suffix:
out = out + ' [ %s ]' % '.'.join([ str(x) for x in suffix ])
elif self.translateNumericOid:
out = '.' + '.'.join([ str(x) for x in prefix ])
if suffix:
out = out + ' [ %s ]' % '.'.join([ str(x) for x in suffix ])
elif self.translateSymbolicOid:
out = '.' + '.'.join(label)
if suffix:
out = out + ' [ %s ]' % '.'.join([ str(x) for x in suffix ])
if not out:
out = mibview.MibViewProxy.getPrettyOidVal(
self, mibViewController, oid, self._null
)
return out
snmpEngine = engine.SnmpEngine()
# Load up MIB texts (DESCRIPTION, etc.)
mibBuilder = snmpEngine.getMibBuilder()
mibBuilder.loadTexts = True
try:
# Parse c/l into AST
ast = Parser().parse(
Scanner().tokenize(' '.join(sys.argv[1:]))
)
ctx = {}
# Apply configuration to SNMP entity
main.generator((snmpEngine, ctx), ast)
ctx['mibViewProxy'] = MibViewProxy(ctx['mibViewController'])
mibview.generator((snmpEngine, ctx), ast)
pdu.readPduGenerator((snmpEngine, ctx), ast)
generator((snmpEngine, ctx), ast)
except KeyboardInterrupt:
sys.stderr.write('Shutting down...\n')
except error.PySnmpError:
sys.stderr.write('Error: %s\n%s' % (sys.exc_info()[1], getUsage()))
sys.exit(-1)
except Exception:
sys.stderr.write('Process terminated: %s\n' % sys.exc_info()[1])
for line in traceback.format_exception(*sys.exc_info()):
sys.stderr.write(line.replace('\n', ';'))
sys.exit(-1)
ctx['mibViewProxy'].buildValue = 0 # disable value printout
for oid, val in ctx['varBinds']:
while 1:
if val is None:
val = univ.Null()
sys.stdout.write('%s\n' % ctx['mibViewProxy'].getPrettyOidVal(
ctx['mibViewController'], oid, val
)
)
if not ctx['mibViewProxy'].translateMassMode:
break
try:
oid, label, suffix = ctx['mibViewController'].getNextNodeName(oid)
except NoSuchObjectError:
break
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