mirror of
https://github.com/Xahau/xahaud.git
synced 2025-11-25 21:15:49 +00:00
Refactor the structure of source files:
* New src/ripple/crypto and src/ripple/protocol directories * Merged src/ripple/common into src/ripple/basics * Move resource/api files up a level * Add headers for "include what you use" * Normalized include guards * Renamed to JsonFields.h * Remove obsolete files * Remove net.h unity header * Remove resource.h unity header * Removed some deprecated unity includes
This commit is contained in:
Vinnie Falco
494
src/ripple/basics/impl/make_SSLContext.cpp
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494
src/ripple/basics/impl/make_SSLContext.cpp
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@@ -0,0 +1,494 @@
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//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2012, 2013 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#include <ripple/basics/make_SSLContext.h>
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#include <ripple/basics/seconds_clock.h>
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#include <beast/container/aged_unordered_set.h>
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#include <beast/module/core/diagnostic/FatalError.h>
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#include <beast/utility/static_initializer.h>
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#include <cstdint>
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#include <sstream>
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#include <stdexcept>
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namespace ripple {
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namespace openssl {
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namespace detail {
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template <class>
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struct custom_delete;
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template <>
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struct custom_delete <RSA>
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{
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void operator() (RSA* rsa) const
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{
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RSA_free (rsa);
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}
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};
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template <>
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struct custom_delete <EVP_PKEY>
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{
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void operator() (EVP_PKEY* evp_pkey) const
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{
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EVP_PKEY_free (evp_pkey);
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}
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};
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template <>
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struct custom_delete <X509>
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{
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void operator() (X509* x509) const
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{
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X509_free (x509);
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}
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};
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template <>
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struct custom_delete <DH>
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{
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void operator() (DH* dh) const
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{
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DH_free(dh);
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}
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};
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template <class T>
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using custom_delete_unique_ptr = std::unique_ptr <T, custom_delete <T>>;
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// RSA
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typedef custom_delete_unique_ptr <RSA> rsa_ptr;
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static rsa_ptr rsa_generate_key (int n_bits)
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{
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RSA* rsa = RSA_generate_key (n_bits, RSA_F4, nullptr, nullptr);
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if (rsa == nullptr)
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{
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throw std::runtime_error ("RSA_generate_key failed");
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}
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return rsa_ptr (rsa);
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}
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// EVP_PKEY
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typedef custom_delete_unique_ptr <EVP_PKEY> evp_pkey_ptr;
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static evp_pkey_ptr evp_pkey_new()
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{
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EVP_PKEY* evp_pkey = EVP_PKEY_new();
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if (evp_pkey == nullptr)
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{
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throw std::runtime_error ("EVP_PKEY_new failed");
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}
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return evp_pkey_ptr (evp_pkey);
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}
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static void evp_pkey_assign_rsa (EVP_PKEY* evp_pkey, rsa_ptr&& rsa)
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{
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if (! EVP_PKEY_assign_RSA (evp_pkey, rsa.get()))
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{
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throw std::runtime_error ("EVP_PKEY_assign_RSA failed");
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}
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rsa.release();
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}
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// X509
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typedef custom_delete_unique_ptr <X509> x509_ptr;
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static x509_ptr x509_new()
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{
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X509* x509 = X509_new();
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if (x509 == nullptr)
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{
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throw std::runtime_error ("X509_new failed");
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}
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X509_set_version (x509, NID_X509);
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int const margin = 60 * 60; // 3600, one hour
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int const length = 10 * 365.25 * 24 * 60 * 60; // 315576000, ten years
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X509_gmtime_adj (X509_get_notBefore (x509), -margin);
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X509_gmtime_adj (X509_get_notAfter (x509), length);
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return x509_ptr (x509);
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}
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static void x509_set_pubkey (X509* x509, EVP_PKEY* evp_pkey)
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{
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X509_set_pubkey (x509, evp_pkey);
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}
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static void x509_sign (X509* x509, EVP_PKEY* evp_pkey)
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{
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if (! X509_sign (x509, evp_pkey, EVP_sha1()))
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{
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throw std::runtime_error ("X509_sign failed");
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}
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}
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static void ssl_ctx_use_certificate (SSL_CTX* const ctx, x509_ptr& cert)
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{
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if (SSL_CTX_use_certificate (ctx, cert.release()) <= 0)
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{
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throw std::runtime_error ("SSL_CTX_use_certificate failed");
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}
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}
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static void ssl_ctx_use_privatekey (SSL_CTX* const ctx, evp_pkey_ptr& key)
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{
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if (SSL_CTX_use_PrivateKey (ctx, key.release()) <= 0)
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{
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throw std::runtime_error ("SSL_CTX_use_PrivateKey failed");
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}
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}
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// track when SSL connections have last negotiated
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struct StaticData
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{
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std::mutex lock;
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beast::aged_unordered_set <SSL const*> set;
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StaticData()
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: set (ripple::get_seconds_clock ())
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{ }
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};
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using dh_ptr = custom_delete_unique_ptr<DH>;
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static
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dh_ptr
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make_DH(std::string const& params)
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{
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auto const* p (
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reinterpret_cast <std::uint8_t const*>(¶ms [0]));
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DH* const dh = d2i_DHparams (nullptr, &p, params.size ());
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if (p == nullptr)
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beast::FatalError ("d2i_DHparams returned nullptr.",
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__FILE__, __LINE__);
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return dh_ptr(dh);
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}
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static
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DH*
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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 dh_ptr dh512 = make_DH(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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beast::FatalError ("unsupported key length", __FILE__, __LINE__);
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}
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return nullptr;
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}
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static
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DH*
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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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static
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bool
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disallowRenegotiation (SSL const* ssl, bool isNew)
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{
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// Do not allow a connection to renegotiate
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// more than once every 4 minutes
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static beast::static_initializer <StaticData> static_data;
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auto& sd (static_data.get ());
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std::lock_guard <std::mutex> lock (sd.lock);
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auto const expired (sd.set.clock().now() - std::chrono::minutes (4));
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// Remove expired entries
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for (auto iter (sd.set.chronological.begin ());
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(iter != sd.set.chronological.end ()) && (iter.when () <= expired);
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iter = sd.set.chronological.begin ())
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{
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sd.set.erase (iter);
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}
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auto iter = sd.set.find (ssl);
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if (iter != sd.set.end ())
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{
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if (! isNew)
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{
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// This is a renegotiation and the last negotiation was recent
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return true;
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}
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sd.set.touch (iter);
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}
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else
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{
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sd.set.emplace (ssl);
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}
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return false;
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}
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static
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void
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info_handler (SSL const* ssl, int event, int)
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{
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if ((ssl->s3) && (event & SSL_CB_HANDSHAKE_START))
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{
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if (disallowRenegotiation (ssl, SSL_in_before (ssl)))
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ssl->s3->flags |= SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS;
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}
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}
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static
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std::string
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error_message (std::string const& what,
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boost::system::error_code const& ec)
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{
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std::stringstream ss;
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ss <<
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what << ": " <<
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ec.message() <<
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" (" << ec.value() << ")";
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return ss.str();
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}
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static
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void
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initCommon (boost::asio::ssl::context& context)
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{
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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::no_sslv3 |
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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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context.native_handle (),
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tmp_dh_handler);
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SSL_CTX_set_info_callback (
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context.native_handle (),
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info_handler);
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}
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static
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void
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initAnonymous (
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boost::asio::ssl::context& context, std::string const& cipherList)
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{
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initCommon(context);
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int const result = SSL_CTX_set_cipher_list (
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context.native_handle (),
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cipherList.c_str ());
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if (result != 1)
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throw std::invalid_argument("SSL_CTX_set_cipher_list failed");
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using namespace openssl;
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evp_pkey_ptr pkey = evp_pkey_new();
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evp_pkey_assign_rsa (pkey.get(), rsa_generate_key (2048));
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x509_ptr cert = x509_new();
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x509_set_pubkey (cert.get(), pkey.get());
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x509_sign (cert.get(), pkey.get());
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SSL_CTX* const ctx = context.native_handle();
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ssl_ctx_use_certificate (ctx, cert);
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ssl_ctx_use_privatekey (ctx, pkey);
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}
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static
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void
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initAuthenticated (boost::asio::ssl::context& context,
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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 (context);
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SSL_CTX* const ssl = 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 ec;
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context.use_certificate_file (
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cert_file, boost::asio::ssl::context::pem, ec);
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if (ec)
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{
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beast::FatalError (error_message (
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"Problem with SSL certificate file.", ec).c_str(),
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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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beast::FatalError (error_message (
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"Problem opening SSL chain file.", boost::system::error_code (errno,
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boost::system::generic_category())).c_str(),
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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, nullptr, nullptr, nullptr);
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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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beast::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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beast::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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beast::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 ec;
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context.use_private_key_file (key_file,
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boost::asio::ssl::context::pem, ec);
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if (ec)
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{
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beast::FatalError (error_message (
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"Problem using the SSL private key file.", ec).c_str(),
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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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beast::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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} // detail
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} // openssl
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//------------------------------------------------------------------------------
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std::string
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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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std::uint8_t 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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std::shared_ptr<boost::asio::ssl::context>
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make_SSLContext()
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{
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std::shared_ptr<boost::asio::ssl::context> context =
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std::make_shared<boost::asio::ssl::context> (
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boost::asio::ssl::context::sslv23);
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// By default, allow anonymous DH.
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openssl::detail::initAnonymous (
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*context, "ALL:!LOW:!EXP:!MD5:@STRENGTH");
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// VFALCO NOTE, It seems the WebSocket context never has
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// set_verify_mode called, for either setting of WEBSOCKET_SECURE
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context->set_verify_mode (boost::asio::ssl::verify_none);
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return context;
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}
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std::shared_ptr<boost::asio::ssl::context>
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make_SSLContextAuthed (std::string const& key_file,
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std::string const& cert_file, std::string const& chain_file)
|
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{
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std::shared_ptr<boost::asio::ssl::context> context =
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std::make_shared<boost::asio::ssl::context> (
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boost::asio::ssl::context::sslv23);
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openssl::detail::initAuthenticated(*context,
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key_file, cert_file, chain_file);
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return context;
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}
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} // ripple
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|
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