commit dcab214322356db9d975673d19146ff46ec86b4f Author: Karsten Loesing karsten.loesing@gmx.net Date: Tue Aug 18 21:05:45 2020 +0200

Add new filter mode to filter analysis results.

Implements tpo/metrics/onionperf#33260. --- CHANGELOG.md | 6 +++ onionperf/analysis.py | 11 ++++++ onionperf/filtering.py | 100 +++++++++++++++++++++++++++++++++++++++++++++++++ onionperf/onionperf | 51 +++++++++++++++++++++++++ 4 files changed, 168 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md index b8a86ee..c57695e 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -1,3 +1,9 @@ +# Changes in version 0.7 - 2020-??-?? + + - Add a new `onionperf filter` mode that takes an OnionPerf analysis + results file as input, applies filters, and produces a new + OnionPerf analysis results file as output. + # Changes in version 0.6 - 2020-08-08

- Update to TGen 1.0.0, use TGenTools for parsing TGen log files, and diff --git a/onionperf/analysis.py b/onionperf/analysis.py index ea07d0e..b2f483f 100644 --- a/onionperf/analysis.py +++ b/onionperf/analysis.py @@ -62,6 +62,11 @@ class OPAnalysis(Analysis): self.json_db['data'][self.nickname]["tgen"].pop("stream_summary") self.did_analysis = True

+ def set_tgen_transfers(self, node, tgen_transfers): + self.json_db['data'][node]['tgen']['transfers'] = tgen_transfers + + def set_tgen_streams(self, node, tgen_streams): + self.json_db['data'][node]['tgen']['streams'] = tgen_streams

def save(self, filename=None, output_prefix=os.getcwd(), do_compress=True, date_prefix=None): if filename is None: @@ -98,6 +103,12 @@ class OPAnalysis(Analysis): except: return None

+ def get_tor_circuits(self, node): + try: + return self.json_db['data'][node]['tor']['circuits'] + except: + return None + def get_tor_streams(self, node): try: return self.json_db['data'][node]['tor']['streams'] diff --git a/onionperf/filtering.py b/onionperf/filtering.py new file mode 100644 index 0000000..435a1bc --- /dev/null +++ b/onionperf/filtering.py @@ -0,0 +1,100 @@ +''' + OnionPerf + Authored by Rob Jansen, 2015 + Copyright 2015-2020 The Tor Project + See LICENSE for licensing information +''' + +import re +from onionperf.analysis import OPAnalysis + +class Filtering(object): + + def __init__(self): + self.fingerprints_to_include = None + self.fingerprints_to_exclude = None + self.fingerprint_pattern = re.compile("$?([0-9a-fA-F]{40})") + + def read_input(self, path): + self.analysis = OPAnalysis.load(filename=path) + + def include_fingerprints(self, path): + self.fingerprints_to_include = [] + with open(path, 'rt') as f: + for line in f: + fingerprint_match = self.fingerprint_pattern.match(line) + if fingerprint_match: + fingerprint = fingerprint_match.group(1).upper() + self.fingerprints_to_include.append(fingerprint) + + def exclude_fingerprints(self, path): + self.exclude_fingerprints = [] + with open(path, 'rt') as f: + for line in f: + fingerprint_match = self.fingerprint_pattern.match(line) + if fingerprint_match: + fingerprint = fingerprint_match.group(1).upper() + self.exclude_fingerprints.append(fingerprint) + + def apply_filters(self): + if self.fingerprints_to_include is None and self.fingerprints_to_exclude is None: + return + for source in self.analysis.get_nodes(): + tor_streams_by_source_port = {} + tor_streams = self.analysis.get_tor_streams(source) + for tor_stream in tor_streams.values(): + if "source" in tor_stream and ":" in tor_stream["source"]: + source_port = tor_stream["source"].split(":")[1] + tor_streams_by_source_port.setdefault(source_port, []).append(tor_stream) + tor_circuits = self.analysis.get_tor_circuits(source) + tgen_streams = self.analysis.get_tgen_streams(source) + tgen_transfers = self.analysis.get_tgen_transfers(source) + retained_tgen_streams = {} + retained_tgen_transfers = {} + while tgen_streams or tgen_transfers: + stream_id = None + transfer_id = None + source_port = None + unix_ts_end = None + keep = False + if tgen_streams: + stream_id, stream_data = tgen_streams.popitem() + if "local" in stream_data["transport_info"] and len(stream_data["transport_info"]["local"].split(":")) > 2: + source_port = stream_data["transport_info"]["local"].split(":")[2] + if "unix_ts_end" in stream_data: + unix_ts_end = stream_data["unix_ts_end"] + elif tgen_transfers: + transfer_id, transfer_data = tgen_transfers.popitem() + if "endpoint_local" in transfer_data and len(transfer_data["endpoint_local"].split(":")) > 2: + source_port = transfer_data["endpoint_local"].split(":")[2] + if "unix_ts_end" in transfer_data: + unix_ts_end = transfer_data["unix_ts_end"] + if source_port and unix_ts_end: + for tor_stream in tor_streams_by_source_port[source_port]: + if abs(unix_ts_end - tor_stream["unix_ts_end"]) < 150.0: + circuit_id = tor_stream["circuit_id"] + if circuit_id and circuit_id in tor_circuits: + tor_circuit = tor_circuits[circuit_id] + path = tor_circuit["path"] + keep = True + for long_name, _ in path: + fingerprint_match = self.fingerprint_pattern.match(long_name) + if fingerprint_match: + fingerprint = fingerprint_match.group(1).upper() + if self.fingerprints_to_include and fingerprint not in self.fingerprints_to_include: + keep = False + break + if self.fingerprints_to_exclude and fingerprint in self.fingerprints_to_exclude: + keep = False + break + if keep: + if stream_id: + retained_tgen_streams[stream_id] = stream_data + if transfer_id: + retained_tgen_transfers[transfer_id] = transfer_data + self.analysis.set_tgen_streams(source, retained_tgen_streams) + self.analysis.set_tgen_transfers(source, retained_tgen_transfers) + + def write_output(self, path): + self.analysis.save(filename=path) + diff --git a/onionperf/onionperf b/onionperf/onionperf index e8024ce..b1e7bd3 100755 --- a/onionperf/onionperf +++ b/onionperf/onionperf @@ -74,6 +74,15 @@ Stats files in the default Torperf format can also be exported. HELP_ANALYZE = """ Analyze Tor and TGen output """ + +DESC_FILTER = """ +Takes an OnionPerf analysis results file as input, applies filters, +and produces a new OnionPerf analysis results file as output. +""" +HELP_FILTER = """ +Filter OnionPerf analysis results +""" + DESC_VISUALIZE = """ Loads an OnionPerf json file, e.g., one produced with the `analyze` subcommand, and plots various interesting performance metrics to PDF files. @@ -280,6 +289,36 @@ files generated by this script will be written""", action="store", dest="date_prefix", default=None)

+ # filter + filter_parser = sub_parser.add_parser('filter', description=DESC_FILTER, help=HELP_FILTER, + formatter_class=my_formatter_class) + filter_parser.set_defaults(func=filter, formatter_class=my_formatter_class) + + filter_parser.add_argument('-i', '--input', + help="""read the OnionPerf analysis results at PATH as input""", + metavar="PATH", required="True", + action="store", dest="input") + + filter_parser.add_argument('--include-fingerprints', + help="""include only measurements with known circuit path and with all + relays being contained in the fingerprints file located at + PATH""", + metavar="PATH", action="store", dest="include_fingerprints", + default=None) + + filter_parser.add_argument('--exclude-fingerprints', + help="""exclude measurements without known circuit path or with any + relays being contained in the fingerprints file located at + PATH""", + metavar="PATH", action="store", dest="exclude_fingerprints", + default=None) + + filter_parser.add_argument('-o', '--output', + help="""write the filtered output OnionPerf analysis results file to + PATH""", + metavar="PATH", required="True", + action="store", dest="output") + # visualize visualize_parser = sub_parser.add_parser('visualize', description=DESC_VISUALIZE, help=HELP_VISUALIZE, formatter_class=my_formatter_class) @@ -397,6 +436,18 @@ def analyze(args): else: logging.error("Given paths were an unrecognized mix of file and directory paths, nothing will be analyzed")

+def filter(args): + from onionperf.filtering import Filtering + + filtering = Filtering() + filtering.read_input(args.input) + if args.include_fingerprints is not None: + filtering.include_fingerprints(args.include_fingerprints) + if args.exclude_fingerprints is not None: + filtering.exclude_fingerprints(args.exclude_fingerprints) + filtering.apply_filters() + filtering.write_output(args.output) + def visualize(args): from onionperf.visualization import TGenVisualization from onionperf.analysis import OPAnalysis