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Merge ripple_asio into ripple_net
This commit is contained in:
Vinnie Falco
295
modules/ripple_net/basics/RippleSSLContext.cpp
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295
modules/ripple_net/basics/RippleSSLContext.cpp
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//------------------------------------------------------------------------------
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/*
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Copyright (c) 2011-2013, OpenCoin, Inc.
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*/
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//==============================================================================
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class RippleSSLContextImp : public RippleSSLContext
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{
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private:
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boost::asio::ssl::context m_context;
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public:
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RippleSSLContextImp ()
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: RippleSSLContext (m_context)
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, m_context (boost::asio::ssl::context::sslv23)
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{
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}
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~RippleSSLContextImp ()
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{
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}
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static DH* tmp_dh_handler (SSL*, int, int key_length)
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{
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return DHparams_dup (getDH (key_length));
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}
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//--------------------------------------------------------------------------
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static std::string getRawDHParams (int keySize)
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{
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std::string params;
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// Original code provided the 512-bit keySize parameters
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// when 1024 bits were requested so we will do the same.
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if (keySize == 1024)
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keySize = 512;
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switch (keySize)
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{
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case 512:
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{
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// These are the DH parameters that OpenCoin has chosen for Ripple
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//
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uint8 const raw [] = {
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0x30, 0x46, 0x02, 0x41, 0x00, 0x98, 0x15, 0xd2, 0xd0, 0x08, 0x32, 0xda,
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0xaa, 0xac, 0xc4, 0x71, 0xa3, 0x1b, 0x11, 0xf0, 0x6c, 0x62, 0xb2, 0x35,
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0x8a, 0x10, 0x92, 0xc6, 0x0a, 0xa3, 0x84, 0x7e, 0xaf, 0x17, 0x29, 0x0b,
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0x70, 0xef, 0x07, 0x4f, 0xfc, 0x9d, 0x6d, 0x87, 0x99, 0x19, 0x09, 0x5b,
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0x6e, 0xdb, 0x57, 0x72, 0x4a, 0x7e, 0xcd, 0xaf, 0xbd, 0x3a, 0x97, 0x55,
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0x51, 0x77, 0x5a, 0x34, 0x7c, 0xe8, 0xc5, 0x71, 0x63, 0x02, 0x01, 0x02
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};
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params.resize (sizeof (raw));
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std::copy (raw, raw + sizeof (raw), params.begin ());
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}
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break;
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};
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return params;
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}
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//--------------------------------------------------------------------------
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// Does common initialization for all but the bare context type.
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void initCommon ()
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{
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m_context.set_options (
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boost::asio::ssl::context::default_workarounds |
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boost::asio::ssl::context::no_sslv2 |
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boost::asio::ssl::context::single_dh_use);
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SSL_CTX_set_tmp_dh_callback (
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m_context.native_handle (),
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tmp_dh_handler);
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}
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//--------------------------------------------------------------------------
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void initAnonymous (String const& cipherList)
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{
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initCommon ();
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int const result = SSL_CTX_set_cipher_list (
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m_context.native_handle (),
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cipherList.toStdString ().c_str ());
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if (result != 1)
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FatalError ("invalid cipher list", __FILE__, __LINE__);
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}
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//--------------------------------------------------------------------------
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void initAuthenticated (
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std::string key_file, std::string cert_file, std::string chain_file)
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{
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initCommon ();
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SSL_CTX* const ssl = m_context.native_handle ();
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bool cert_set = false;
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if (! cert_file.empty ())
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{
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boost::system::error_code error;
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m_context.use_certificate_file (
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cert_file, boost::asio::ssl::context::pem, error);
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if (error)
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{
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FatalError ("Problem with SSL certificate file.",
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__FILE__, __LINE__);
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}
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cert_set = true;
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}
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if (! chain_file.empty ())
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{
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// VFALCO Replace fopen() with RAII
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FILE* f = fopen (chain_file.c_str (), "r");
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if (!f)
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{
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FatalError ("Problem opening SSL chain file.",
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__FILE__, __LINE__);
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}
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try
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{
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for (;;)
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{
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X509* const x = PEM_read_X509 (f, NULL, NULL, NULL);
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if (x == nullptr)
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break;
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if (! cert_set)
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{
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if (SSL_CTX_use_certificate (ssl, x) != 1)
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FatalError ("Problem retrieving SSL certificate from chain file.",
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__FILE__, __LINE__);
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cert_set = true;
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}
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else if (SSL_CTX_add_extra_chain_cert (ssl, x) != 1)
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{
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X509_free (x);
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FatalError ("Problem adding SSL chain certificate.",
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__FILE__, __LINE__);
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}
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}
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fclose (f);
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}
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catch (...)
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{
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fclose (f);
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FatalError ("Reading the SSL chain file generated an exception.",
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__FILE__, __LINE__);
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}
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}
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if (! key_file.empty ())
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{
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boost::system::error_code error;
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m_context.use_private_key_file (key_file,
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boost::asio::ssl::context::pem, error);
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if (error)
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{
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FatalError ("Problem using the SSL private key file.",
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__FILE__, __LINE__);
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}
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}
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if (SSL_CTX_check_private_key (ssl) != 1)
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{
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FatalError ("Invalid key in SSL private key file.",
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__FILE__, __LINE__);
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}
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}
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//--------------------------------------------------------------------------
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// A simple RAII container for a DH
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//
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struct ScopedDHPointer
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{
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// Construct from an existing DH
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//
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explicit ScopedDHPointer (DH* dh)
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: m_dh (dh)
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{
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}
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// Construct from raw DH params
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//
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explicit ScopedDHPointer (std::string const& params)
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{
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uint8 const* p (reinterpret_cast <uint8 const*>(¶ms [0]));
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m_dh = d2i_DHparams (nullptr, &p, params.size ());
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if (m_dh == nullptr)
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FatalError ("d2i_DHparams returned nullptr.",
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__FILE__, __LINE__);
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}
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~ScopedDHPointer ()
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{
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if (m_dh != nullptr)
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DH_free (m_dh);
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}
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operator DH* () const
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{
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return get ();
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}
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DH* get () const
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{
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return m_dh;
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}
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private:
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DH* m_dh;
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};
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//--------------------------------------------------------------------------
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static DH* getDH (int keyLength)
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{
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if (keyLength == 512 || keyLength == 1024)
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{
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static ScopedDHPointer dh512 (getRawDHParams (keyLength));
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return dh512.get ();
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}
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else
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{
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FatalError ("unsupported key length", __FILE__, __LINE__);
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}
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return nullptr;
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}
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};
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//------------------------------------------------------------------------------
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RippleSSLContext::RippleSSLContext (ContextType& context)
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: SSLContext (context)
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{
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}
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RippleSSLContext* RippleSSLContext::createBare ()
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{
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ScopedPointer <RippleSSLContextImp> context (new RippleSSLContextImp ());
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return context.release ();
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}
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RippleSSLContext* RippleSSLContext::createWebSocket ()
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{
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ScopedPointer <RippleSSLContextImp> context (new RippleSSLContextImp ());
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context->initCommon ();
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return context.release ();
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}
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RippleSSLContext* RippleSSLContext::createAnonymous (String const& cipherList)
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{
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ScopedPointer <RippleSSLContextImp> context (new RippleSSLContextImp ());
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context->initAnonymous (cipherList);
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return context.release ();
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}
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RippleSSLContext* RippleSSLContext::createAuthenticated (
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std::string key_file, std::string cert_file, std::string chain_file)
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{
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ScopedPointer <RippleSSLContextImp> context (new RippleSSLContextImp ());
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context->initAuthenticated (key_file, cert_file, chain_file);
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return context.release ();
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}
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std::string RippleSSLContext::getRawDHParams (int keySize)
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{
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return RippleSSLContextImp::getRawDHParams (keySize);
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}
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