public Core.Stack <X509Name> LoadClientCAFile(string filename)
{
IntPtr stack = Native.SSL_load_client_CA_file(filename);
Core.Stack <X509Name> name_stack = new Core.Stack <X509Name>(stack, true);
return(name_stack);
}
public int InternalClientCertificateSelectionCallback(Ssl ssl, out X509Certificate x509_cert, out CryptoKey key)
{
int nRet = 0;
x509_cert = null;
key = null;
Core.Stack <X509Name> name_stack = ssl.CAList;
string[] strIssuers = new string[name_stack.Count];
int count = 0;
foreach (X509Name name in name_stack)
{
strIssuers[count++] = name.OneLine;
}
if (localCertificateSelectionCallback != null)
{
X509Certificate cert = localCertificateSelectionCallback(this, targetHost, clientCertificates, ssl.GetPeerCertificate(), strIssuers);
if (cert != null && cert.HasPrivateKey)
{
x509_cert = cert;
key = cert.PrivateKey;
// Addref the cert and private key
x509_cert.AddRef();
key.AddRef();
// return success
nRet = 1;
}
}
return(nRet);
}
internal int OnVerifyCertThunk(int ok, IntPtr store_ctx)
{
X509StoreContext ctx = new X509StoreContext(store_ctx, false);
X509Certificate cert = ctx.CurrentCert;
int depth = ctx.ErrorDepth;
VerifyResult result = (VerifyResult)ctx.Error;
// build the X509Chain from the store
X509Store store = ctx.Store;
Core.Stack <X509Object> objStack = store.Objects;
X509Chain chain = new X509Chain();
foreach (X509Object obj in objStack)
{
X509Certificate objCert = obj.Certificate;
if (objCert != null)
{
chain.Add(objCert);
}
}
// Call the managed delegate
if (OnVerifyCert(this, cert, chain, depth, result))
{
return(1);
}
else
{
return(0);
}
}
public List <string> GetCipherList()
{
List <string> ret = new List <string>();
SSL_CTX raw = (SSL_CTX)Marshal.PtrToStructure(ptr, typeof(SSL_CTX));
Core.Stack <SslCipher> stack = new Core.Stack <SslCipher>(raw.cipher_list, false);
foreach (SslCipher cipher in stack)
{
IntPtr cipher_ptr = Native.SSL_CIPHER_description(cipher.Handle, null, 0);
if (cipher_ptr != IntPtr.Zero)
{
string strCipher = Marshal.PtrToStringAnsi(cipher_ptr);
ret.Add(strCipher);
Native.OPENSSL_free(cipher_ptr);
}
}
return(ret);
}
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.SSLv23_server_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;
}
/*
* // Initialize the context with the specified ssl version
* switch (enabledSslProtocols)
* {
* case SslProtocols.None:
* throw new ArgumentException("SslProtocol.None is not supported", "enabledSslProtocols");
* break;
* case SslProtocols.Ssl2:
* sslContext = new SslContext(SslMethod.SSLv2_server_method);
* break;
* case SslProtocols.Ssl3:
* case SslProtocols.Default:
* sslContext = new SslContext(SslMethod.SSLv3_server_method);
* break;
* case SslProtocols.Tls:
* sslContext = new SslContext(SslMethod.TLSv1_server_method);
* break;
* }
*/
// 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.
X509Store cert_store = new X509Store(caCerts, false);
sslContext.SetCertificateStore(cert_store);
Core.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(AppDomain.CurrentDomain.FriendlyName));
}
