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import copy
import os
import pytest
from configuration import available_ports, ALL_TEST_CIPHERS, ALL_TEST_CURVES, ALL_TEST_CERTS, PROTOCOLS, TLS13_CIPHERS
from common import ProviderOptions, Protocols, data_bytes
from fixtures import managed_process # lgtm [py/unused-import]
from providers import Provider, S2N, OpenSSL
from utils import invalid_test_parameters, get_parameter_name, get_expected_s2n_version, to_bytes
@pytest.mark.uncollect_if(func=invalid_test_parameters)
@pytest.mark.parametrize("cipher", ALL_TEST_CIPHERS, ids=get_parameter_name)
@pytest.mark.parametrize("curve", ALL_TEST_CURVES, ids=get_parameter_name)
@pytest.mark.parametrize("certificate", ALL_TEST_CERTS, ids=get_parameter_name)
@pytest.mark.parametrize("protocol", [p for p in PROTOCOLS if p != Protocols.TLS13], ids=get_parameter_name)
@pytest.mark.parametrize("provider", [OpenSSL], ids=get_parameter_name)
@pytest.mark.parametrize("other_provider", [S2N], ids=get_parameter_name)
@pytest.mark.parametrize("use_ticket", [True, False])
def test_session_resumption_s2n_server(managed_process, cipher, curve, certificate, protocol, provider, other_provider,
use_ticket):
port = next(available_ports)
client_options = ProviderOptions(
mode=Provider.ClientMode,
port=port,
cipher=cipher,
curve=curve,
insecure=True,
reconnect=True,
protocol=protocol)
server_options = copy.copy(client_options)
server_options.reconnects_before_exit = 6
server_options.mode = Provider.ServerMode
server_options.use_session_ticket = use_ticket,
server_options.key = certificate.key
server_options.cert = certificate.cert
# Passing the type of client and server as a parameter will
# allow us to use a fixture to enumerate all possibilities.
server = managed_process(S2N, server_options, timeout=5)
client = managed_process(provider, client_options, timeout=5)
# The client should connect and return without error
for results in client.get_results():
results.assert_success()
assert results.stdout.count(to_bytes("Session-ID:")) == 6
expected_version = get_expected_s2n_version(protocol, OpenSSL)
# S2N should indicate the procotol version in a successful connection.
for results in server.get_results():
results.assert_success()
assert results.stdout.count(
to_bytes("Actual protocol version: {}".format(expected_version))) == 6
@pytest.mark.uncollect_if(func=invalid_test_parameters)
@pytest.mark.parametrize("cipher", ALL_TEST_CIPHERS, ids=get_parameter_name)
@pytest.mark.parametrize("curve", ALL_TEST_CURVES, ids=get_parameter_name)
@pytest.mark.parametrize("certificate", ALL_TEST_CERTS, ids=get_parameter_name)
@pytest.mark.parametrize("protocol", [p for p in PROTOCOLS if p != Protocols.TLS13], ids=get_parameter_name)
@pytest.mark.parametrize("provider", [OpenSSL], ids=get_parameter_name)
@pytest.mark.parametrize("other_provider", [S2N], ids=get_parameter_name)
@pytest.mark.parametrize("use_ticket", [True, False])
def test_session_resumption_s2n_client(managed_process, cipher, curve, protocol, provider, other_provider, certificate,
use_ticket):
port = next(available_ports)
client_options = ProviderOptions(
mode=Provider.ClientMode,
port=port,
cipher=cipher,
curve=curve,
insecure=True,
reconnect=True,
use_session_ticket=use_ticket,
protocol=protocol)
server_options = copy.copy(client_options)
server_options.reconnects_before_exit = 6
server_options.mode = Provider.ServerMode
server_options.key = certificate.key
server_options.cert = certificate.cert
server_options.use_session_ticket = False
# Passing the type of client and server as a parameter will
# allow us to use a fixture to enumerate all possibilities.
server = managed_process(provider, server_options, timeout=5)
client = managed_process(S2N, client_options, timeout=5)
expected_version = get_expected_s2n_version(protocol, OpenSSL)
for results in client.get_results():
results.assert_success()
assert results.stdout.count(
to_bytes("Actual protocol version: {}".format(expected_version))) == 6
for results in server.get_results():
results.assert_success()
assert results.stdout.count(to_bytes("6 server accepts that finished"))
@pytest.mark.uncollect_if(func=invalid_test_parameters)
@pytest.mark.parametrize("cipher", TLS13_CIPHERS, ids=get_parameter_name)
@pytest.mark.parametrize("curve", ALL_TEST_CURVES, ids=get_parameter_name)
@pytest.mark.parametrize("certificate", ALL_TEST_CERTS, ids=get_parameter_name)
@pytest.mark.parametrize("protocol", [Protocols.TLS13], ids=get_parameter_name)
@pytest.mark.parametrize("provider", [OpenSSL], ids=get_parameter_name)
@pytest.mark.parametrize("other_provider", [S2N], ids=get_parameter_name)
def test_tls13_session_resumption_s2n_server(managed_process, tmp_path, cipher, curve, certificate, protocol, provider,
other_provider):
port = str(next(available_ports))
# Use temp directory to store session tickets
p = tmp_path / 'ticket.pem'
path_to_ticket = str(p)
close_marker_bytes = data_bytes(10)
client_options = ProviderOptions(
mode=Provider.ClientMode,
port=port,
cipher=cipher,
curve=curve,
insecure=True,
reconnect=False,
extra_flags=['-sess_out', path_to_ticket],
protocol=protocol)
server_options = copy.copy(client_options)
server_options.mode = Provider.ServerMode
server_options.key = certificate.key
server_options.cert = certificate.cert
server_options.use_session_ticket = True
server_options.extra_flags = None
server_options.data_to_send = close_marker_bytes
server = managed_process(
S2N, server_options, timeout=5, send_marker=S2N.get_send_marker())
client = managed_process(provider, client_options,
timeout=5, close_marker=str(close_marker_bytes))
# The client should have received a session ticket
for results in client.get_results():
results.assert_success()
assert b'Post-Handshake New Session Ticket arrived:' in results.stdout
for results in server.get_results():
results.assert_success()
# The first connection is a full handshake
assert b'Resumed session' not in results.stdout
# Client inputs received session ticket to resume a session
assert os.path.exists(path_to_ticket)
client_options.extra_flags = ['-sess_in', path_to_ticket]
port = str(next(available_ports))
client_options.port = port
server_options.port = port
server = managed_process(
S2N, server_options, timeout=5, send_marker=S2N.get_send_marker())
client = managed_process(provider, client_options,
timeout=5, close_marker=str(close_marker_bytes))
s2n_version = get_expected_s2n_version(protocol, provider)
# Client has not read server certificate message as this is a resumed session
for results in client.get_results():
results.assert_success()
assert to_bytes(
"SSL_connect:SSLv3/TLS read server certificate") not in results.stderr
# The server should indicate a session has been resumed
for results in server.get_results():
results.assert_success()
assert b'Resumed session' in results.stdout
assert to_bytes("Actual protocol version: {}".format(
s2n_version)) in results.stdout
@pytest.mark.uncollect_if(func=invalid_test_parameters)
@pytest.mark.parametrize("cipher", TLS13_CIPHERS, ids=get_parameter_name)
@pytest.mark.parametrize("curve", ALL_TEST_CURVES, ids=get_parameter_name)
@pytest.mark.parametrize("certificate", ALL_TEST_CERTS, ids=get_parameter_name)
@pytest.mark.parametrize("protocol", [Protocols.TLS13], ids=get_parameter_name)
@pytest.mark.parametrize("provider", [OpenSSL, S2N], ids=get_parameter_name)
@pytest.mark.parametrize("other_provider", [S2N], ids=get_parameter_name)
def test_tls13_session_resumption_s2n_client(managed_process, cipher, curve, certificate, protocol, provider,
other_provider):
port = str(next(available_ports))
# The reconnect option for s2nc allows the client to reconnect automatically
# five times. In this test we expect one full connection and five resumption
# connections.
num_full_connections = 1
num_resumed_connections = 5
client_options = ProviderOptions(
mode=Provider.ClientMode,
port=port,
cipher=cipher,
curve=curve,
insecure=True,
use_session_ticket=True,
reconnect=True,
protocol=protocol)
server_options = copy.copy(client_options)
server_options.mode = Provider.ServerMode
server_options.key = certificate.key
server_options.cert = certificate.cert
server_options.reconnects_before_exit = num_resumed_connections + num_full_connections
server = managed_process(provider, server_options, timeout=5)
client = managed_process(S2N, client_options, timeout=5)
s2n_version = get_expected_s2n_version(protocol, provider)
# s2nc indicates the number of resumed connections in its output
for results in client.get_results():
results.assert_success()
assert results.stdout.count(
b'Resumed session') == num_resumed_connections
assert to_bytes("Actual protocol version: {}".format(
s2n_version)) in results.stdout
server_accepts_str = str(
num_resumed_connections + num_full_connections) + " server accepts that finished"
for results in server.get_results():
results.assert_success()
if provider is S2N:
assert results.stdout.count(
b'Resumed session') == num_resumed_connections
assert to_bytes("Actual protocol version: {}".format(
s2n_version)) in results.stdout
else:
assert to_bytes(server_accepts_str) in results.stdout
# s_server only writes one certificate message in all of the connections
assert results.stderr.count(
b'SSL_accept:SSLv3/TLS write certificate') == num_full_connections
@pytest.mark.uncollect_if(func=invalid_test_parameters)
@pytest.mark.parametrize("cipher", TLS13_CIPHERS, ids=get_parameter_name)
@pytest.mark.parametrize("curve", ALL_TEST_CURVES, ids=get_parameter_name)
@pytest.mark.parametrize("certificate", ALL_TEST_CERTS, ids=get_parameter_name)
@pytest.mark.parametrize("protocol", [Protocols.TLS13], ids=get_parameter_name)
@pytest.mark.parametrize("provider", [OpenSSL], ids=get_parameter_name)
@pytest.mark.parametrize("other_provider", [S2N], ids=get_parameter_name)
def test_s2nd_falls_back_to_full_connection(managed_process, tmp_path, cipher, curve, certificate, protocol, provider,
other_provider):
port = str(next(available_ports))
# Use temp directory to store session tickets
p = tmp_path / 'ticket.pem'
path_to_ticket = str(p)
"""
This test will set up a full connection with an Openssl client and server to obtain
a valid Openssl session ticket. Then, the Openssl client attempts to send the
received session ticket to an s2n server to resume a session. s2nd will fallback to
a full connection as it does not recognize the session ticket.
"""
client_options = ProviderOptions(
mode=Provider.ClientMode,
port=port,
cipher=cipher,
curve=curve,
insecure=True,
reconnect=False,
extra_flags=['-sess_out', path_to_ticket],
data_to_send=data_bytes(4069),
protocol=protocol)
server_options = copy.copy(client_options)
server_options.mode = Provider.ServerMode
server_options.key = certificate.key
server_options.cert = certificate.cert
server_options.extra_flags = None
server = managed_process(provider, server_options, timeout=5)
client = managed_process(provider, client_options, timeout=5)
# The client should have received a session ticket
for results in client.get_results():
results.assert_success()
assert b'Post-Handshake New Session Ticket arrived:' in results.stdout
for results in server.get_results():
results.assert_success()
# Server should have sent certificate message as this is a full connection
assert b'SSL_accept:SSLv3/TLS write certificate' in results.stderr
# Client inputs received session ticket to resume a session
assert os.path.exists(path_to_ticket)
client_options.extra_flags = ['-sess_in', path_to_ticket]
port = str(next(available_ports))
client_options.port = port
server_options.port = port
# Switch providers so now s2n is the server
server = managed_process(S2N, server_options, timeout=5)
client = managed_process(provider, client_options, timeout=5)
s2n_version = get_expected_s2n_version(protocol, provider)
# Client has read server certificate because this is a full connection
for results in client.get_results():
results.assert_success()
assert to_bytes(
"SSL_connect:SSLv3/TLS read server certificate") in results.stderr
# The server should indicate a session has not been resumed
for results in server.get_results():
results.assert_success()
assert b'Resumed session' not in results.stdout
assert to_bytes("Actual protocol version: {}".format(
s2n_version)) in results.stdout
@pytest.mark.uncollect_if(func=invalid_test_parameters)
@pytest.mark.parametrize("cipher", ALL_TEST_CIPHERS, ids=get_parameter_name)
@pytest.mark.parametrize("curve", ALL_TEST_CURVES, ids=get_parameter_name)
@pytest.mark.parametrize("certificate", ALL_TEST_CERTS, ids=get_parameter_name)
@pytest.mark.parametrize("protocol", [p for p in PROTOCOLS if p < Protocols.TLS13], ids=get_parameter_name)
@pytest.mark.parametrize("provider", [OpenSSL, S2N], ids=get_parameter_name)
@pytest.mark.parametrize("other_provider", [S2N], ids=get_parameter_name)
def test_session_resumption_s2n_client_tls13_server_not_tls13(managed_process, cipher, curve, protocol, provider, other_provider, certificate):
port = next(available_ports)
# This test verifies that an S2N client that supports TLS1.3 can resume sessions
# with a server that does not support TLS1.3
# The reconnect option for s2nc allows the client to reconnect automatically
# five times. In this test we expect one full connection and five resumption
# connections.
num_full_connections = 1
num_resumed_connections = 5
client_options = ProviderOptions(
mode=Provider.ClientMode,
port=port,
cipher=cipher,
curve=curve,
insecure=True,
reconnect=True,
use_session_ticket=True,
protocol=Protocols.TLS13)
server_options = ProviderOptions(
mode=Provider.ServerMode,
port=port,
cipher=cipher,
curve=curve,
insecure=True,
reconnect=True,
use_session_ticket=False,
protocol=protocol,
reconnects_before_exit=num_resumed_connections + num_full_connections,
key=certificate.key,
cert=certificate.cert)
# Passing the type of client and server as a parameter will
# allow us to use a fixture to enumerate all possibilities.
server = managed_process(provider, server_options, timeout=5)
client = managed_process(S2N, client_options, timeout=5)
expected_version = get_expected_s2n_version(protocol, provider)
server_accepts_str = str(
num_resumed_connections + num_full_connections) + " server accepts that finished"
for results in client.get_results():
results.assert_success()
assert results.stdout.count(
b'Resumed session') == num_resumed_connections
assert to_bytes("Actual protocol version: {}".format(
expected_version)) in results.stdout
for results in server.get_results():
results.assert_success()
if provider is S2N:
assert results.stdout.count(
b'Resumed session') == num_resumed_connections
assert to_bytes("Actual protocol version: {}".format(
expected_version)) in results.stdout
else:
assert to_bytes(server_accepts_str) in results.stdout
|
