/// <summary>
/// Sets the certificate store for the context - calls SSL_CTX_set_cert_store
/// The X509Store object and contents will be freed when the context is disposed.
/// Ensure that the store object and it's contents have IsOwner set to false
/// before assigning them into the context.
/// </summary>
/// <param name="store"></param>
public void SetCertificateStore(X509Store store)
{
// Remove the native pointer ownership from the object
// Reference counts don't work for the X509_STORE, so
// we just remove ownership from the X509Store object
store.IsOwner = false;
Native.SSL_CTX_set_cert_store(this.ptr, store.Handle);
}
protected void InitializeClientContext(X509List certificates, SslProtocols enabledSslProtocols, SslStrength sslStrength, bool checkCertificateRevocation)
{
// Initialize the context with the specified ssl version
// Initialize the context
sslContext = new SslContext(SslMethod.SSLv23_client_method);
// Remove support for protocols not specified in the enabledSslProtocols
if ((enabledSslProtocols & SslProtocols.Ssl2) != SslProtocols.Ssl2)
{
sslContext.Options |= SslOptions.SSL_OP_NO_SSLv2;
}
if ((enabledSslProtocols & SslProtocols.Ssl3) != SslProtocols.Ssl3 &&
((enabledSslProtocols & SslProtocols.Default) != SslProtocols.Default))
{
// no SSLv3 support
sslContext.Options |= SslOptions.SSL_OP_NO_SSLv3;
}
if ((enabledSslProtocols & SslProtocols.Tls) != SslProtocols.Tls &&
(enabledSslProtocols & SslProtocols.Default) != SslProtocols.Default)
{
sslContext.Options |= SslOptions.SSL_OP_NO_TLSv1;
}
// Set the Local certificate selection callback
sslContext.SetClientCertCallback(this.internalCertificateSelectionCallback);
// Set the enabled cipher list
sslContext.SetCipherList(GetCipherString(false, enabledSslProtocols, sslStrength));
// Set the callbacks for remote cert verification and local cert selection
if (remoteCertificateSelectionCallback != null)
{
sslContext.SetVerify(VerifyMode.SSL_VERIFY_PEER | VerifyMode.SSL_VERIFY_FAIL_IF_NO_PEER_CERT, remoteCertificateSelectionCallback);
}
// Set the CA list into the store
if (caCertificates != null)
{
X509Store store = new X509Store(caCertificates);
sslContext.SetCertificateStore(store);
}
// Set up the read/write bio's
read_bio = BIO.MemoryBuffer(false);
write_bio = BIO.MemoryBuffer(false);
ssl = new Ssl(sslContext);
ssl.SetBIO(read_bio, write_bio);
read_bio.SetClose(BIO.CloseOption.Close);
write_bio.SetClose(BIO.CloseOption.Close);
// Set the Ssl object into Client mode
ssl.SetConnectState();
}
private void InitializeServerContext(
X509Certificate serverCertificate,
bool clientCertificateRequired,
X509Chain caCerts,
SslProtocols enabledSslProtocols,
SslStrength sslStrength,
bool checkCertificateRevocation)
{
if (serverCertificate == null)
{
throw new ArgumentNullException("serverCertificate", "Server certificate cannot be null");
}
if (!serverCertificate.HasPrivateKey)
{
throw new ArgumentException("Server certificate must have a private key", "serverCertificate");
}
// Initialize the context
sslContext = new SslContext(SslMethod.TLSv1_server_method, ConnectionEnd.Server, true, new[] { Protocols.Http2, Protocols.Http1 });
// Remove support for protocols not specified in the enabledSslProtocols
if ((enabledSslProtocols & SslProtocols.Ssl2) != SslProtocols.Ssl2)
{
sslContext.Options |= SslOptions.SSL_OP_NO_SSLv2;
}
if ((enabledSslProtocols & SslProtocols.Ssl3) != SslProtocols.Ssl3 &&
((enabledSslProtocols & SslProtocols.Default) != SslProtocols.Default))
{
// no SSLv3 support
sslContext.Options |= SslOptions.SSL_OP_NO_SSLv3;
}
if ((enabledSslProtocols & SslProtocols.Tls) != SslProtocols.Tls &&
(enabledSslProtocols & SslProtocols.Default) != SslProtocols.Default)
{
sslContext.Options |= SslOptions.SSL_OP_NO_TLSv1;
}
// Set the context mode
sslContext.Mode = SslMode.SSL_MODE_AUTO_RETRY;
// Set the workaround options
sslContext.Options = SslOptions.SSL_OP_ALL;
// Set the client certificate verification callback if we are requiring client certs
if (clientCertificateRequired)
{
sslContext.SetVerify(VerifyMode.SSL_VERIFY_PEER | VerifyMode.SSL_VERIFY_FAIL_IF_NO_PEER_CERT, remoteCertificateSelectionCallback);
}
else
{
sslContext.SetVerify(VerifyMode.SSL_VERIFY_NONE, null);
}
// Set the client certificate max verification depth
sslContext.SetVerifyDepth(10);
// Set the certificate store and ca list
if (caCerts != null)
{
// Don't take ownership of the X509Store IntPtr. When we
// SetCertificateStore, the context takes ownership of the store pointer.
var cert_store = new X509Store(caCerts, false);
sslContext.SetCertificateStore(cert_store);
Stack<X509Name> name_stack = new Core.Stack<X509Name>();
foreach (X509Certificate cert in caCerts)
{
X509Name subject = cert.Subject;
name_stack.Add(subject);
}
// Assign the stack to the context
sslContext.CAList = name_stack;
}
// Set the cipher string
sslContext.SetCipherList(GetCipherString(false, enabledSslProtocols, sslStrength));
// Set the certificate
sslContext.UseCertificate(serverCertificate);
// Set the private key
sslContext.UsePrivateKey(serverCertificate.PrivateKey);
// Set the session id context
sslContext.SetSessionIdContext(Encoding.ASCII.GetBytes("AppDomainHost: UnitTests12345678"/*AppDomain.CurrentDomain.FriendlyName*/));
}
/// <summary>
/// Calls X509_STORE_CTX_init()
/// </summary>
/// <param name="store"></param>
/// <param name="cert"></param>
/// <param name="uchain"></param>
public void Init(X509Store store, X509Certificate cert, X509Chain uchain)
{
Native.ExpectSuccess(Native.X509_STORE_CTX_init(
this.ptr,
store.Handle,
cert != null ? cert.Handle : IntPtr.Zero,
uchain.Handle));
}
/// <summary>
/// Verify that the specified chain can be trusted.
/// </summary>
/// <param name="chain"></param>
/// <param name="error"></param>
/// <returns></returns>
public bool VerifyResponse(X509Chain chain, out string error)
{
cert = chain[0];
var store = new X509Store(chain);
return store.Verify(cert, out error);
}
/// <summary>
/// Sets the certificate store for the context - calls SSL_CTX_set_cert_store
/// The X509Store object and contents will be freed when the context is disposed.
/// Ensure that the store object and it's contents have IsOwner set to false
/// before assigning them into the context.
/// </summary>
/// <param name="store"></param>
public void SetCertificateStore(X509Store store)
{
store.AddRef();
Native.SSL_CTX_set_cert_store(ptr, store.Handle);
}
protected void InitializeClientContext(
X509List certificates,
SslProtocols enabledSslProtocols,
SslStrength sslStrength,
bool checkCertificateRevocation)
{
// Initialize the context with specified TLS version
sslContext = new SslContext(SslMethod.TLSv12_client_method, ConnectionEnd.Client, new[] {
Protocols.Http2,
Protocols.Http1
});
var options = sslContext.Options;
// Remove support for protocols not specified in the enabledSslProtocols
if (!EnumExtensions.HasFlag(enabledSslProtocols, SslProtocols.Ssl2))
{
options |= SslOptions.SSL_OP_NO_SSLv2;
}
if (!EnumExtensions.HasFlag(enabledSslProtocols, SslProtocols.Ssl3))
{
options |= SslOptions.SSL_OP_NO_SSLv3;
}
if (!EnumExtensions.HasFlag(enabledSslProtocols, SslProtocols.Tls))
{
options |= SslOptions.SSL_OP_NO_TLSv1;
}
sslContext.Options = options;
// Set the Local certificate selection callback
sslContext.SetClientCertCallback(OnClientCertificate);
// Set the enabled cipher list
sslContext.SetCipherList(SslCipher.MakeString(enabledSslProtocols, sslStrength));
// Set the callbacks for remote cert verification and local cert selection
if (OnRemoteCertificate != null)
{
sslContext.SetVerify(
VerifyMode.SSL_VERIFY_PEER |
VerifyMode.SSL_VERIFY_FAIL_IF_NO_PEER_CERT,
OnRemoteCertificate);
}
// Set the CA list into the store
if (caCertificates != null)
{
var store = new X509Store(caCertificates);
sslContext.SetCertificateStore(store);
}
// Set up the read/write bio's
read_bio = BIO.MemoryBuffer(false);
write_bio = BIO.MemoryBuffer(false);
ssl = new Ssl(sslContext);
sniCb = sniExt.ClientSniCb;
sniExt.AttachSniExtensionClient(ssl.Handle, sslContext.Handle, sniCb);
ssl.SetBIO(read_bio, write_bio);
read_bio.SetClose(BIO.CloseOption.Close);
write_bio.SetClose(BIO.CloseOption.Close);
// Set the Ssl object into Client mode
ssl.SetConnectState();
}
public OpenSslCertificateHandler(string cert_dir, string local_id) :
base(cert_dir, local_id)
{
Store = new ox509.X509Store();
}
public OpenSslCertificateHandler(string cert_dir, string local_id) :
base(cert_dir, local_id)
{
Store = new ox509.X509Store();
}