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#!/usr/bin/env python3
# -*- coding: utf-8 -*-
""" Python code to start a RIPE Atlas UDM (User-Defined
Measurement). This one is for running IPv4 or IPv6 ICMP queries to
test reachability.
You'll need an API key in ~/.atlas/auth.
After launching the measurement, it downloads the results and analyzes
them.
Stéphane Bortzmeyer <stephane+frama@bortzmeyer.org>
"""
import json
import time
import os
import sys
import time
import socket
import copy
import collections
import Blaeu
config = Blaeu.Config()
# Default values
config.tests = 3 # ICMP packets per probe
config.by_probe = False # Default is to count by test, not by probe
config.display_probes = False
class Set():
def __init__(self):
self.failed = True
def is_ip_address(str):
try:
addr = socket.inet_pton(socket.AF_INET6, str)
except socket.error: # not a valid IPv6 address
try:
addr = socket.inet_pton(socket.AF_INET, str)
except socket.error: # not a valid IPv4 address either
return False
return True
def usage(msg=None):
print("Usage: %s target-IP-address ..." % sys.argv[0], file=sys.stderr)
config.usage(msg)
print("""Also:
--tests=N or -d N : send N ICMP packets from each probe (default is %s)
--by_probe : count the percentage of success by probe, not by test (useless if --tests=1)
""" % (config.tests), file=sys.stderr)
def specificParse(config, option, value):
result = True
if option == "--tests" or option == "-d":
config.tests = int(value)
elif option == "--by_probe":
config.by_probe = True
else:
result = False
return result
args, data = config.parse("d:", ["by_probe", "tests="], specificParse,
usage)
targets = args
if len(targets) == 0:
usage("No target found")
sys.exit(1)
if config.verbose and config.machine_readable:
usage("Specify verbose *or* machine-readable output")
sys.exit(1)
if (config.display_probes or config.display_probe_asns) and config.machine_readable:
usage("Display probes *or* machine-readable output")
sys.exit(1)
data["definitions"][0]["type"] = "ping"
del data["definitions"][0]["port"]
data["definitions"][0]["packets"] = config.tests
for target in targets:
if not is_ip_address(target):
print(("Target must be an IP address, NOT AN HOST NAME"), file=sys.stderr)
sys.exit(1)
data["definitions"][0]["target"] = target
data["definitions"][0]["description"] = ("Ping %s" % target) + data["definitions"][0]["description"]
if target.find(':') > -1:
config.ipv4 = False
data["definitions"][0]['af'] = 6
else:
config.ipv4 = True
data["definitions"][0]['af'] = 4
# Yes, it was already done in parse() but we have to do it again now that we
# know the address family of the target. See bug #9. Note that we silently
# override a possible explicit choice of the user (her -4 may be ignored).
if config.include is not None:
data["probes"][0]["tags"]["include"] = copy.copy(config.include)
else:
data["probes"][0]["tags"]["include"] = []
if config.ipv4:
data["probes"][0]["tags"]["include"].append("system-ipv4-works") # Some probes cannot do ICMP outgoing (firewall?)
else:
data["probes"][0]["tags"]["include"].append("system-ipv6-works")
if config.exclude is not None:
data["probes"][0]["tags"]["exclude"] = copy.copy(config.exclude)
if config.measurement_id is None:
if config.verbose:
print(data)
try:
measurement = Blaeu.Measurement(data)
except Blaeu.RequestSubmissionError as error:
print(Blaeu.format_error(error), file=sys.stderr)
sys.exit(1)
if config.old_measurement is None:
config.old_measurement = measurement.id
if config.verbose:
print("Measurement #%s to %s uses %i probes" % (measurement.id, target,
measurement.num_probes))
# Retrieve the results
rdata = measurement.results(wait=True, percentage_required=config.percentage_required)
else:
measurement = Blaeu.Measurement(data=None, id=config.measurement_id)
rdata = measurement.results(wait=False)
if config.verbose:
print("%i results from already-done measurement #%s" % (len(rdata), measurement.id))
if len(rdata) == 0:
print("Warning: zero results. Measurement not terminated? May be retry later with --measurement-ID=%s ?" % measurement.id, file=sys.stderr)
total_rtt = 0
num_rtt = 0
num_error = 0
num_timeout = 0
num_tests = 0
if config.by_probe:
probes_success = 0
probes_failure = 0
num_probes = 0
if not config.machine_readable and config.measurement_id is None:
print(("%s probes reported" % len(rdata)))
if config.display_probe_asns:
config.display_probes = True
if config.display_probes:
failed_probes = collections.defaultdict(Set)
for result in rdata:
probe_ok = False
probe = result["prb_id"]
if config.by_probe:
num_probes += 1
for test in result["result"]:
num_tests += 1
if "rtt" in test:
total_rtt += int(test["rtt"])
num_rtt += 1
probe_ok = True
elif "error" in test:
num_error += 1
elif "x" in test:
num_timeout += 1
else:
print(("Result has no field rtt, or x or error"), file=sys.stderr)
sys.exit(1)
if config.by_probe:
if probe_ok:
probes_success += 1
else:
probes_failure += 1
if not probe_ok:
if config.display_probes:
failed_probes[probe].failed = True
if config.display_probe_asns:
details = Blaeu.ProbeCache.cache_probe_id(config.cache_probes, probe) \
if config.cache_probes else Blaeu.Probe(probe)
failed_probes[probe].asn = getattr(details, "asn_v%i" % (4 if config.ipv4 else 6), None)
if not config.machine_readable:
print(("Test #%s done at %s" % (measurement.id, time.strftime("%Y-%m-%dT%H:%M:%SZ", measurement.time))))
if num_rtt == 0:
if not config.machine_readable:
print("No successful test")
else:
if not config.machine_readable:
if not config.by_probe:
print(("Tests: %i successful tests (%.1f %%), %i errors (%.1f %%), %i timeouts (%.1f %%), average RTT: %i ms" % \
(num_rtt, num_rtt*100.0/num_tests,
num_error, num_error*100.0/num_tests,
num_timeout, num_timeout*100.0/num_tests, total_rtt/num_rtt)))
else:
print(("Tests: %i successful probes (%.1f %%), %i failed (%.1f %%), average RTT: %i ms" % \
(probes_success, probes_success*100.0/num_probes,
probes_failure, probes_failure*100.0/num_probes,
total_rtt/num_rtt)))
if len(targets) > 1 and not config.machine_readable:
print("")
if config.display_probes:
if config.display_probe_asns:
l = [[probe, failed_probes[probe].asn] for probe in failed_probes.keys()]
else:
l = failed_probes.keys()
all = list(l)
if all != []:
print(all)
if config.machine_readable:
if num_rtt != 0:
percent_rtt = total_rtt/num_rtt
else:
percent_rtt = 0
print(",".join([target, str(measurement.id), "%s/%s" % (len(rdata),measurement.num_probes), \
time.strftime("%Y-%m-%dT%H:%M:%SZ", time.gmtime()), "%i" % num_rtt, \
"%.1f" % (num_rtt*100.0/num_tests), "%i" % num_error, "%.1f" % (num_error*100.0/num_tests), \
"%i" % num_timeout, "%.1f" % (num_timeout*100.0/num_tests), "%i" % (percent_rtt)]))
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