Files
MP-SPDZ/Networking/ssl_sockets.h
2025-01-10 19:03:15 +11:00

124 lines
3.2 KiB
C++

/*
* sockets.h
*
*/
#ifndef CRYPTO_SSL_SOCKETS_H_
#define CRYPTO_SSL_SOCKETS_H_
#include "Tools/int.h"
#include "Tools/time-func.h"
#include "sockets.h"
#include "Math/Setup.h"
#include <boost/asio.hpp>
#include <boost/asio/ssl.hpp>
#ifndef SSL_DIR
#define SSL_DIR "Player-Data/"
#endif
typedef boost::asio::io_context ssl_service;
void check_ssl_file(string filename);
void ssl_error(string side, string other, string server, exception& e);
class ssl_ctx : public boost::asio::ssl::context
{
public:
ssl_ctx(string me) :
boost::asio::ssl::context(boost::asio::ssl::context::tlsv12)
{
string prefix = SSL_DIR + me;
string cert_file = prefix + ".pem";
string key_file = prefix + ".key";
check_ssl_file(cert_file);
check_ssl_file(key_file);
use_certificate_file(cert_file, pem);
use_private_key_file(key_file, pem);
add_verify_path(SSL_DIR);
}
};
class ssl_socket : public boost::asio::ssl::stream<boost::asio::ip::tcp::socket>
{
typedef boost::asio::ssl::stream<boost::asio::ip::tcp::socket> parent;
public:
ssl_socket(ssl_service& io_service,
boost::asio::ssl::context& ctx, int plaintext_socket, string other,
string me, bool client) :
parent(io_service, ctx)
{
#ifdef DEBUG_NETWORKING
cerr << me << " setting up SSL to " << other << " as " <<
(client ? "client" : "server") << endl;
#endif
lowest_layer().assign(boost::asio::ip::tcp::v4(), plaintext_socket);
set_verify_mode(boost::asio::ssl::verify_peer);
set_verify_callback(boost::asio::ssl::host_name_verification(other));
if (client)
try
{
handshake(ssl_socket::client);
} catch (exception& e)
{
ssl_error("Client", other, me, e);
throw;
}
else
{
try
{
handshake(ssl_socket::server);
} catch (exception& e)
{
ssl_error("Server", other, me, e);
throw;
}
}
}
};
inline size_t send_non_blocking(ssl_socket* socket, octet* data, size_t length)
{
return socket->write_some(boost::asio::buffer(data, length));
}
inline void send(ssl_socket* socket, octet* data, size_t length)
{
size_t sent = 0;
#ifdef VERBOSE_SSL
RunningTimer timer;
#endif
while (sent < length)
{
sent += send_non_blocking(socket, data + sent, length - sent);
#ifdef VERBOSE_SSL
cout << "sent " << sent * 1e-6 << " MB at " << timer.elapsed() << endl;
#endif
}
}
inline void receive(ssl_socket* socket, octet* data, size_t length)
{
size_t received = 0;
while (received < length)
received += socket->read_some(boost::asio::buffer(data + received, length - received));
}
inline size_t receive_non_blocking(ssl_socket* socket, octet* data, size_t length)
{
return socket->read_some(boost::asio::buffer(data, length));
}
inline size_t receive_all_or_nothing(ssl_socket* socket, octet* data, size_t length)
{
receive(socket, data, length);
return length;
}
#endif /* CRYPTO_SSL_SOCKETS_H_ */