""" Copyright (c) 2016 Ad Schellevis All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. -------------------------------------------------------------------------------------- data aggregator type """ from lib.aggregate import BaseFlowAggregator class FlowSourceAddrTotals(BaseFlowAggregator): """ collect source totals """ target_filename = '/var/netflow/src_addr_%06d.sqlite' agg_fields = ['if', 'src_addr', 'direction'] @classmethod def resolutions(cls): """ :return: list of sample resolutions """ return [300, 3600, 86400] @classmethod def history_per_resolution(cls): """ :return: dict sample resolution / expire time (seconds) """ # only save daily totals for a longer period of time, we probably only want to answer questions like # "top usage over the last 30 seconds, 5 minutes, etc.." return {300: 3600, 3600: 86400, 86400: cls.seconds_per_day(365) } def __init__(self, resolution): """ :param resolution: sample resultion (seconds) :return: None """ super(FlowSourceAddrTotals, self).__init__(resolution) def add(self, flow): # most likely service (destination) port flow['if'] = flow['if_in'] flow['direction'] = 'in' super(FlowSourceAddrTotals, self).add(flow) flow['src_addr'] = flow['dst_addr'] flow['if'] = flow['if_out'] flow['direction'] = 'out' super(FlowSourceAddrTotals, self).add(flow) class FlowSourceAddrDetails(BaseFlowAggregator): """ collect source details on a daily resolution """ target_filename = '/var/netflow/src_addr_details_%06d.sqlite' agg_fields = ['if', 'direction', 'src_addr', 'dst_addr', 'service_port', 'protocol'] @classmethod def resolutions(cls): """ :return: list of sample resolutions """ return [86400] @classmethod def history_per_resolution(cls): """ :return: dict sample resolution / expire time (seconds) """ return {86400: cls.seconds_per_day(62)} def __init__(self, resolution): """ :param resolution: sample resultion (seconds) :return: None """ super(FlowSourceAddrDetails, self).__init__(resolution) def add(self, flow): # most likely service (destination) port flow['service_port'] = min(flow['dst_port'], flow['src_port']) flow['if'] = flow['if_in'] flow['direction'] = 'in' super(FlowSourceAddrDetails, self).add(flow) # swap source and destination addresses for outgoing traffic src_addr = flow['dst_addr'] flow['dst_addr'] = flow['src_addr'] flow['src_addr'] = src_addr flow['if'] = flow['if_out'] flow['direction'] = 'out' super(FlowSourceAddrDetails, self).add(flow)