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update SSL tests to deal better with disabled protocols #65120

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merged 15 commits into from
Feb 17, 2022
Merged

update SSL tests to deal better with disabled protocols #65120

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9f2b1a1
update SSL tests to deal better with disabled protocols
wfurt Feb 10, 2022
318518c
Improve detection of Null encryption on Windows
wfurt Feb 10, 2022
6dddb96
update expectation for Mismatched protocols
wfurt Feb 10, 2022
36b4b36
update detection
wfurt Feb 11, 2022
bd6ee9c
Merge branch 'sslTests_65098' of https://github.com/dotnet/runtime in…
wfurt Feb 11, 2022
429d7da
wrap win32 exception
wfurt Feb 14, 2022
d1ad211
Merge branch 'main' of https://github.com/dotnet/runtime into sslTest…
wfurt Feb 14, 2022
212fa5b
update ProtocolMismatchData sets
wfurt Feb 15, 2022
76a485a
remove debug print
wfurt Feb 15, 2022
c4add0d
final cleanup
wfurt Feb 15, 2022
371f08b
Merge branch 'main' of https://github.com/dotnet/runtime into sslTest…
wfurt Feb 15, 2022
bc8c739
Merge branch 'main' into sslTests_65098
wfurt Feb 15, 2022
34cfde3
generate mismatch data
wfurt Feb 15, 2022
c5eb617
Merge branch 'main' of https://github.com/dotnet/runtime into sslTest…
wfurt Feb 15, 2022
63e9638
avoid SslProtocols.Default
wfurt Feb 16, 2022
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4 changes: 3 additions & 1 deletion src/libraries/Common/tests/System/Net/SslProtocolSupport.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -61,10 +61,12 @@ public IEnumerator<object[]> GetEnumerator()
{
foreach (SslProtocols protocol in Enum.GetValues(typeof(SslProtocols)))
{
if (protocol != SslProtocols.None && (protocol & SupportedSslProtocols) == protocol)
#pragma warning disable 0618 // SSL2/3 are deprecated
if (protocol != SslProtocols.None && protocol != SslProtocols.Default && (protocol & SupportedSslProtocols) == protocol)
{
yield return new object[] { protocol };
}
#pragma warning restore 0618
}
}

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23 changes: 15 additions & 8 deletions src/libraries/System.Net.Security/src/System/Net/Security/SslStreamPal.Windows.cs
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Expand Up @@ -140,16 +140,23 @@ public static SecurityStatusPal Renegotiate(

public static SafeFreeCredentials AcquireCredentialsHandle(SslStreamCertificateContext? certificateContext, SslProtocols protocols, EncryptionPolicy policy, bool isServer)
{
// New crypto API supports TLS1.3 but it does not allow to force NULL encryption.
SafeFreeCredentials cred = !UseNewCryptoApi || policy == EncryptionPolicy.NoEncryption ?
AcquireCredentialsHandleSchannelCred(certificateContext, protocols, policy, isServer) :
AcquireCredentialsHandleSchCredentials(certificateContext, protocols, policy, isServer);
if (certificateContext != null && certificateContext.Trust != null && certificateContext.Trust._sendTrustInHandshake)
try
{
AttachCertificateStore(cred, certificateContext.Trust._store!);
}
// New crypto API supports TLS1.3 but it does not allow to force NULL encryption.
SafeFreeCredentials cred = !UseNewCryptoApi || policy == EncryptionPolicy.NoEncryption ?
AcquireCredentialsHandleSchannelCred(certificateContext, protocols, policy, isServer) :
AcquireCredentialsHandleSchCredentials(certificateContext, protocols, policy, isServer);
if (certificateContext != null && certificateContext.Trust != null && certificateContext.Trust._sendTrustInHandshake)
{
AttachCertificateStore(cred, certificateContext.Trust._store!);
}

return cred;
return cred;
}
catch (Win32Exception e)
{
throw new AuthenticationException(SR.net_auth_SSPI, e);
}
}

private static unsafe void AttachCertificateStore(SafeFreeCredentials cred, X509Store store)
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28 changes: 15 additions & 13 deletions src/libraries/System.Net.Security/tests/FunctionalTests/ClientAsyncAuthenticateTest.cs
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Expand Up @@ -55,11 +55,11 @@ public async Task ClientAsyncAuthenticate_EachSupportedProtocol_Success(SslProto
[Theory]
[MemberData(nameof(ProtocolMismatchData))]
public async Task ClientAsyncAuthenticate_MismatchProtocols_Fails(
SslProtocols serverProtocol,
SslProtocols clientProtocol,
SslProtocols serverProtocol,
Type expectedException)
{
Exception e = await Record.ExceptionAsync(() => ClientAsyncSslHelper(serverProtocol, clientProtocol));
Exception e = await Record.ExceptionAsync(() => ClientAsyncSslHelper(clientProtocol, serverProtocol));
Assert.NotNull(e);
Assert.IsAssignableFrom(expectedException, e);
}
Expand Down Expand Up @@ -92,17 +92,19 @@ public async Task ClientAsyncAuthenticate_IndividualServerVsAllClientSupportedPr

public static IEnumerable<object[]> ProtocolMismatchData()
{
#pragma warning disable 0618
yield return new object[] { SslProtocols.Ssl2, SslProtocols.Ssl3, typeof(Exception) };
yield return new object[] { SslProtocols.Ssl2, SslProtocols.Tls12, typeof(Exception) };
yield return new object[] { SslProtocols.Ssl3, SslProtocols.Tls12, typeof(Exception) };
#pragma warning restore 0618
yield return new object[] { SslProtocols.Tls, SslProtocols.Tls11, typeof(AuthenticationException) };
yield return new object[] { SslProtocols.Tls, SslProtocols.Tls12, typeof(AuthenticationException) };
yield return new object[] { SslProtocols.Tls11, SslProtocols.Tls, typeof(AuthenticationException) };
yield return new object[] { SslProtocols.Tls12, SslProtocols.Tls, typeof(AuthenticationException) };
yield return new object[] { SslProtocols.Tls12, SslProtocols.Tls11, typeof(AuthenticationException) };
yield return new object[] { SslProtocols.Tls11, SslProtocols.Tls12, typeof(AuthenticationException) };
var supportedProtocols = new SslProtocolSupport.SupportedSslProtocolsTestData();

foreach (var serverProtocols in supportedProtocols)
foreach (var clientProtocols in supportedProtocols)
{
SslProtocols serverProtocol = (SslProtocols)serverProtocols[0];
SslProtocols clientProtocol = (SslProtocols)clientProtocols[0];

if (clientProtocol != serverProtocol)
{
yield return new object[] { clientProtocol, serverProtocol, typeof(AuthenticationException) };
}
}
}

#region Helpers
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2 changes: 1 addition & 1 deletion src/libraries/System.Net.Security/tests/FunctionalTests/LoggingTest.cs
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Expand Up @@ -27,7 +27,7 @@ public void EventSource_ExistsWithCorrectId()
[SkipOnPlatform(TestPlatforms.iOS | TestPlatforms.tvOS, "X509 certificate store is not supported on iOS or tvOS.")] // Match SslStream_StreamToStream_Authentication_Success
public void EventSource_EventsRaisedAsExpected()
{
RemoteExecutor.Invoke(async () =>
RemoteExecutor.Invoke(async () =>
{
try
{
Expand Down
41 changes: 11 additions & 30 deletions src/libraries/System.Net.Security/tests/FunctionalTests/ServerAsyncAuthenticateTest.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -46,8 +46,8 @@ public async Task ServerAsyncAuthenticate_EachSupportedProtocol_Success(SslProto
[Theory]
[MemberData(nameof(ProtocolMismatchData))]
public async Task ServerAsyncAuthenticate_MismatchProtocols_Fails(
SslProtocols serverProtocol,
SslProtocols clientProtocol,
SslProtocols serverProtocol,
Type expectedException)
{
Exception e = await Record.ExceptionAsync(
Expand Down Expand Up @@ -236,7 +236,7 @@ public async Task ServerAsyncAuthenticate_ConstructorVerificationDelegate_Succes

(Stream clientStream, Stream serverStream) = TestHelper.GetConnectedStreams();
var client = new SslStream(clientStream);
var server = new SslStream(serverStream, false, (sender, certificate, chain, sslPolicyErrors) => { validationCallbackCalled = true; return true;});
var server = new SslStream(serverStream, false, (sender, certificate, chain, sslPolicyErrors) => { validationCallbackCalled = true; return true; });

using (client)
using (server)
Expand Down Expand Up @@ -323,37 +323,18 @@ public async Task ServerAsyncAuthenticate_InvalidHello_Throws(bool close)

public static IEnumerable<object[]> ProtocolMismatchData()
{
if (PlatformDetection.SupportsSsl3)
{
#pragma warning disable 0618
yield return new object[] { SslProtocols.Ssl3, SslProtocols.Tls12, typeof(Exception) };
if (PlatformDetection.SupportsSsl2)
{
yield return new object[] { SslProtocols.Ssl2, SslProtocols.Ssl3, typeof(Exception) };
yield return new object[] { SslProtocols.Ssl2, SslProtocols.Tls12, typeof(Exception) };
}
#pragma warning restore 0618
}

// It is OK if server does not support given protocol. It should still fail.
// But if client does not support it, it will simply fail without sending out any data.

if (PlatformDetection.SupportsTls10)
{
yield return new object[] { SslProtocols.Tls11, SslProtocols.Tls, typeof(AuthenticationException) };
yield return new object[] { SslProtocols.Tls12, SslProtocols.Tls, typeof(AuthenticationException) };
}
var supportedProtocols = new SslProtocolSupport.SupportedSslProtocolsTestData();

if (PlatformDetection.SupportsTls11)
foreach (var serverProtocols in supportedProtocols)
foreach (var clientProtocols in supportedProtocols)
{
yield return new object[] { SslProtocols.Tls, SslProtocols.Tls11, typeof(AuthenticationException) };
yield return new object[] { SslProtocols.Tls12, SslProtocols.Tls11, typeof(AuthenticationException) };
}
SslProtocols serverProtocol = (SslProtocols)serverProtocols[0];
SslProtocols clientProtocol = (SslProtocols)clientProtocols[0];

if (PlatformDetection.SupportsTls12)
{
yield return new object[] { SslProtocols.Tls, SslProtocols.Tls12, typeof(AuthenticationException) };
yield return new object[] { SslProtocols.Tls11, SslProtocols.Tls12, typeof(AuthenticationException) };
if (clientProtocol != serverProtocol)
{
yield return new object[] { clientProtocol, serverProtocol, typeof(AuthenticationException) };
}
}
}

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5 changes: 4 additions & 1 deletion src/libraries/System.Net.Security/tests/FunctionalTests/ServerNoEncryptionTest.cs
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Expand Up @@ -96,7 +96,10 @@ public async Task ServerNoEncryption_ClientNoEncryption_ConnectWithNoEncryption(
else
{
var ae = await Assert.ThrowsAsync<AuthenticationException>(() => sslStream.AuthenticateAsClientAsync("localhost", null, SslProtocolSupport.DefaultSslProtocols, false));
Assert.IsType<PlatformNotSupportedException>(ae.InnerException);
if (!OperatingSystem.IsWindows())
{
Assert.IsType<PlatformNotSupportedException>(ae.InnerException);
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Does this correlates anyhow with the new check for IsWindows10Version20348OrGreater in s_supportsNullEncryption?
If so, should it be the same check here as well? Or is this unrelated?

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not necessarily. I'm not sure where the expected PlatformNotSupportedException would come from. On windows when the protocol are disabled in registry we get API failure. I mostly disabled this to pass the test so we have time to investigate. My intention is to stabilize the tests but leave #65098 open so we can investigate more.

}
}
}
}
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16 changes: 15 additions & 1 deletion src/libraries/System.Net.Security/tests/FunctionalTests/TestConfiguration.cs
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Expand Up @@ -38,7 +38,21 @@ public static Task WhenAllOrAnyFailedWithTimeout(params Task[] tasks)
// On Windows, null ciphers (no encryption) are supported.
if (OperatingSystem.IsWindows())
{
return true;
if (!PlatformDetection.IsWindows10OrLater)
{
// All old versions support null encryption
return true;
}

try
{
// New Windows can support null but it may be disabled in Azure images
using (Process p = Process.Start(new ProcessStartInfo("powershell", "-Command Get-TlsCipherSuite") { RedirectStandardOutput = true, RedirectStandardError = true }))
{
return p.StandardOutput.ReadToEnd().Contains("WITH_NULL");
}
}
catch { return true; } // assume availability
}

// On macOS and Android, the null cipher (no encryption) is not supported.
Expand Down