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-rw-r--r--src/PolarSSL++/CallbackSslContext.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/src/PolarSSL++/CallbackSslContext.h b/src/PolarSSL++/CallbackSslContext.h
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+
+// CallbackSslContext.h
+
+// Declares the cCallbackSslContext class representing a SSL context wrapper that uses callbacks to read and write SSL peer data
+
+
+
+
+
+#pragma once
+
+#include "SslContext.h"
+
+
+
+
+
+class cCallbackSslContext :
+ public cSslContext
+{
+public:
+ /** Interface used as a data sink for the SSL peer data. */
+ class cDataCallbacks
+ {
+ public:
+ // Force a virtual destructor in descendants:
+ virtual ~cDataCallbacks() {}
+
+ /** Called when PolarSSL wants to read encrypted data from the SSL peer.
+ The returned value is the number of bytes received, or a PolarSSL error on failure.
+ The implementation can return POLARSSL_ERR_NET_WANT_READ or POLARSSL_ERR_NET_WANT_WRITE to indicate
+ that there's currently no more data and that there might be more data in the future. In such cases the
+ SSL operation that invoked this call will terminate with the same return value, so that the owner is
+ notified of this condition and can potentially restart the operation later on. */
+ virtual int ReceiveEncrypted(unsigned char * a_Buffer, size_t a_NumBytes) = 0;
+
+ /** Called when PolarSSL wants to write encrypted data to the SSL peer.
+ The returned value is the number of bytes sent, or a PolarSSL error on failure.
+ The implementation can return POLARSSL_ERR_NET_WANT_READ or POLARSSL_ERR_NET_WANT_WRITE to indicate
+ that there's currently no more data and that there might be more data in the future. In such cases the
+ SSL operation that invoked this call will terminate with the same return value, so that the owner is
+ notified of this condition and can potentially restart the operation later on. */
+ virtual int SendEncrypted(const unsigned char * a_Buffer, size_t a_NumBytes) = 0;
+ } ;
+
+
+ /** Creates a new SSL context with no callbacks assigned */
+ cCallbackSslContext(void);
+
+ /** Creates a new SSL context with the specified callbacks */
+ cCallbackSslContext(cDataCallbacks & a_Callbacks);
+
+protected:
+ /** The callbacks to use to send and receive SSL peer data */
+ cDataCallbacks * m_Callbacks;
+
+ // cSslContext overrides:
+ virtual int ReceiveEncrypted(unsigned char * a_Buffer, size_t a_NumBytes) override;
+ virtual int SendEncrypted(const unsigned char * a_Buffer, size_t a_NumBytes) override;
+};
+
+
+
+