def guessCommunity(self, ignored, proxy, ip, communities, version=2):
"""Try to guess a community.
@param proxy: an old proxy to close if different of C{None}
@param ip: ip of the equipment to test
@param communities: list of communities to test
@param version: SNMP version (1 or 2)
"""
if not communities:
raise exception.NoCommunity("unable to guess community")
community = communities[0]
if proxy:
proxy.community = community
proxy.version = version
else:
proxy = AgentProxy(ip=str(ip),
community=community,
version=version)
# Set timeout/retries
timeout = self.config.get("timeout", None)
retries = self.config.get("retries", None)
if timeout is not None and timeout >= 0:
proxy.timeout = timeout
if retries is not None and retries >= 0:
proxy.retries = retries
# Set version and communities for next run if this one doesn't succeed
version -= 1
if version == 0:
version = 2
communities = communities[1:]
d = proxy.get(['.1.3.6.1.2.1.1.1.0'])
d.addCallbacks(callback=lambda x, y: y,
callbackArgs=(proxy, ),
errback=self.guessCommunity,
errbackArgs=(proxy, ip, communities, version))
return d
def guessCommunity(self, ignored, proxy, ip, communities, version=2):
"""Try to guess a community.
@param proxy: an old proxy to close if different of C{None}
@param ip: ip of the equipment to test
@param communities: list of communities to test
@param version: SNMP version (1 or 2)
"""
if not communities:
raise exception.NoCommunity("unable to guess community")
community = communities[0]
if proxy:
proxy.community = community
proxy.version = version
else:
proxy = AgentProxy(ip=str(ip), community=community, version=version)
# Set timeout/retries
timeout = self.config.get("timeout", None)
retries = self.config.get("retries", None)
if timeout is not None and timeout >= 0:
proxy.timeout = timeout
if retries is not None and retries >= 0:
proxy.retries = retries
# Set version and communities for next run if this one doesn't succeed
version -= 1
if version == 0:
version = 2
communities = communities[1:]
d = proxy.get([".1.3.6.1.2.1.1.1.0"])
d.addCallbacks(
callback=lambda x, y: y,
callbackArgs=(proxy,),
errback=self.guessCommunity,
errbackArgs=(proxy, ip, communities, version),
)
return d
