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| | #! /usr/bin/python3
# SPDX-License-Identifier: GPL-2.0-or-later
#
# tasst - Test A Simple Socket Transport
# library of test helpers for passt & pasta
#
# tasst/transfer.py - Helpers for testing data transfers
#
# Copyright Red Hat
# Author: David Gibson <david@gibson.dropbear.id.au>
import ipaddress
import time
import avocado
from tasst import Tasst, TasstSubData
from tasst.address import LOOPBACK4, LOOPBACK6
from tasst.site import Site
from tasst.nstool import UnshareSite
# HACK: how long to wait for the server to be ready and listening (s)
SERVER_READY_DELAY = 0.05 # 1/20th of a second
# socat needs IPv6 addresses in square brackets
def socat_fmt(ip):
if isinstance(ip, ipaddress.IPv6Address):
return '[{}]'.format(ip)
elif isinstance(ip, ipaddress.IPv4Address):
return '{}'.format(ip)
else:
raise TypeError
class BaseTransferTasst(Tasst):
def socat_upload(self, datafile, cs, ss, connect, listen):
server = ss.bg('socat -u {} STDOUT'.format(listen), verbose=False)
time.sleep(SERVER_READY_DELAY)
cs.fg('socat -u OPEN:{} {}'.format(datafile, connect))
res = server.run()
self.assertEquals(res.exit_status, 0)
srcdata = cs.output('cat {}'.format(datafile), verbose=False)
self.assertEquals(srcdata, res.stdout)
def socat_download(self, datafile, cs, ss, connect, listen):
server = ss.bg('socat -u OPEN:{} {}'.format(datafile, listen))
time.sleep(SERVER_READY_DELAY)
dstdata = cs.output('socat -u {} STDOUT'.format(connect), verbose=False)
res = server.run()
self.assertEquals(res.exit_status, 0)
srcdata = ss.output('cat {}'.format(datafile), verbose=False)
self.assertEquals(srcdata, dstdata)
def _tcp_socat(self, datafile, connectip, connectport,
listenip, listenport, fromip):
v6 = isinstance(connectip, ipaddress.IPv6Address)
if listenport is None:
listenport = connectport
if v6:
connect = 'TCP6:[{}]:{},ipv6only'.format(connectip, connectport)
listen = 'TCP6-LISTEN:{},ipv6only'.format(listenport)
else:
connect = 'TCP4:{}:{}'.format(connectip, connectport)
listen = 'TCP4-LISTEN:{}'.format(listenport)
if listenip is not None:
listen += ',bind=' + socat_fmt(listenip)
if fromip is not None:
connect += ',bind=' + socat_fmt(fromip)
return (connect, listen)
def tcp_upload(self, datafile, cs, ss, connectip, connectport,
listenip=None, listenport=None, fromip=None):
connect, listen = self._tcp_socat(datafile, connectip, connectport,
listenip, listenport, fromip)
self.socat_upload(datafile, cs, ss, connect, listen)
def tcp_download(self, datafile, cs, ss, connectip, connectport,
listenip=None, listenport=None, fromip=None):
connect, listen = self._tcp_socat(datafile, connectip, connectport,
listenip, listenport, fromip)
self.socat_download(datafile, cs, ss, connect, listen)
def udp_transfer(self, datafile, cs, ss, connectip, connectport,
listenip=None, listenport=None, fromip=None):
v6 = isinstance(connectip, ipaddress.IPv6Address)
if listenport is None:
listenport = connectport
if v6:
connect = 'UDP6:[{}]:{},ipv6only,shut-null'.format(connectip, connectport)
listen = 'UDP6-LISTEN:{},ipv6only,null-eof'.format(listenport)
if listenip is not None:
assert isinstance(listenip, ipaddress.IPv6Address)
listen += ',bind=[{}]'.format(listenip)
else:
connect = 'UDP4:{}:{},shut-null'.format(connectip, connectport)
listen = 'UDP4-LISTEN:{},null-eof'.format(listenport)
if listenip is not None:
assert isinstance(listenip, ipaddress.IPv4Address)
listen += ',bind={}'.format(listenip)
self.socat_upload(datafile, cs, ss, connect, listen)
def subsetup(self, datafile, cs, ss, ip4, ip6, port,
listen_ip4=None, listen_ip6=None, listenport=None,
from_ip4=None, from_ip6=None):
cs.require_cmds('socat', 'cat')
ss.require_cmds('socat', 'cat')
Tasst.subsetup(self, BaseTransferTasst,
TasstSubData(datafile=datafile, cs=cs, ss=ss,
ip4=ip4, ip6=ip6, port=port,
listen_ip4=listen_ip4, listen_ip6=listen_ip6,
listenport=listenport,
from_ip4=from_ip4, from_ip6=from_ip6))
class TcpUploadTasst(BaseTransferTasst):
"""
:avocado: disable
"""
def test_tcp4_upload(self):
sub = self.get_subsetup(BaseTransferTasst)
self.tcp_upload(sub.datafile, sub.cs, sub.ss, sub.ip4, sub.port,
listenip=sub.listen_ip4, listenport=sub.listenport,
fromip=sub.from_ip4)
def test_tcp6_upload(self):
sub = self.get_subsetup(BaseTransferTasst)
self.tcp_upload(sub.datafile, sub.cs, sub.ss, sub.ip6, sub.port,
listenip=sub.listen_ip6, listenport=sub.listenport,
fromip=sub.from_ip6)
class MetaTcpUploadTasst(TcpUploadTasst):
"""Ugly workaround for
https://github.com/avocado-framework/avocado/issues/5680.
Explicitly apply the "meta" tag to the tests in TransferTasst.
:avocado: disable
:avocado: tags=meta
"""
def test_tcp4_upload(self):
super().test_tcp4_upload()
def test_tcp6_upload(self):
super().test_tcp6_upload()
class UdpTransferTasst(BaseTransferTasst):
"""
:avocado: disable
"""
def test_udp4_transfer(self):
sub = self.get_subsetup(BaseTransferTasst)
self.udp_transfer(sub.datafile, sub.cs, sub.ss, sub.ip4, sub.port,
listenip=sub.listen_ip4, listenport=sub.listenport,
fromip=sub.from_ip4)
def test_udp6_transfer(self):
sub = self.get_subsetup(BaseTransferTasst)
self.udp_transfer(sub.datafile, sub.cs, sub.ss, sub.ip6, sub.port,
listenip=sub.listen_ip6, listenport=sub.listenport,
fromip=sub.from_ip6)
class MetaUdpTransferTasst(UdpTransferTasst):
"""Ugly workaround for
https://github.com/avocado-framework/avocado/issues/5680.
Explicitly apply the "meta" tag to the tests in TransferTasst.
:avocado: disable
:avocado: tags=meta
"""
def test_udp4_transfer(self):
super().test_udp4_transfer()
def test_udp6_transfer(self):
super().test_udp6_transfer()
LOOPBACK4 = ipaddress.ip_address('127.0.0.1')
LOOPBACK6 = ipaddress.ip_address('::1')
class BaseLocalTransferTasst(MetaTcpUploadTasst, MetaUdpTransferTasst):
"""Test the transfer helpers
:avocado: disable
"""
PORT = 10000
def setUp(self):
super().setUp()
self.ns = UnshareSite(type(self).__name__ + '.netns', '-Un')
self.ns.ifup('lo')
def tearDown(self):
self.ns.close()
super().tearDown()
class LocalTransferTasst(BaseLocalTransferTasst):
"""Test the transfer helpers
"""
def setUp(self):
super().setUp()
BaseTransferTasst.subsetup(self, 'test/small.bin', self.ns, self.ns,
LOOPBACK4, LOOPBACK6, self.PORT)
class LocalTransferTasstOptions(BaseLocalTransferTasst):
def setUp(self):
super().setUp()
BaseTransferTasst.subsetup(self, 'test/small.bin', self.ns, self.ns,
LOOPBACK4, LOOPBACK6, self.PORT,
listen_ip4=LOOPBACK4, listen_ip6=LOOPBACK6,
listenport=self.PORT,
from_ip4=LOOPBACK4, from_ip6=LOOPBACK6)
|