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/* yassl.cpp
*
* Copyright (C) 2003 Sawtooth Consulting Ltd.
*
* This file is part of yaSSL.
*
* yaSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* There are special exceptions to the terms and conditions of the GPL as it
* is applied to yaSSL. View the full text of the exception in the file
* FLOSS-EXCEPTIONS in the directory of this software distribution.
*
* yaSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
/* yaSSL implements external API
*/
#include "runtime.hpp"
#include "yassl.hpp"
#include "yassl_int.hpp"
#include "handshake.hpp"
#include <stdio.h>
#include "openssl/ssl.h" // get rid of this
namespace yaSSL {
struct Base {
SSL_METHOD* method_;
SSL_CTX* ctx_;
SSL* ssl_;
char* ca_;
char* cert_;
char* key_;
DH* dh_;
Base() : method_(0), ctx_(0), ssl_(0), ca_(0), cert_(0), key_(0), dh_(0)
{}
~Base()
{
if (dh_) DH_free(dh_);
delete[] key_;
delete[] cert_;
delete[] ca_;
SSL_CTX_free(ctx_); // frees method_ too
SSL_free(ssl_);
}
};
void SetDH(Base&);
void SetUpBase(Base& base, ConnectionEnd end, SOCKET_T s)
{
base.method_ = new SSL_METHOD(end, ProtocolVersion(3,1));
base.ctx_ = new SSL_CTX(base.method_);
if (base.ca_)
if (SSL_CTX_load_verify_locations(base.ctx_,
base.ca_, 0) != SSL_SUCCESS) assert(0);
if (base.cert_)
if (SSL_CTX_use_certificate_file(base.ctx_,
base.cert_, SSL_FILETYPE_PEM) != SSL_SUCCESS) assert(0);
if (base.key_)
if (SSL_CTX_use_PrivateKey_file(base.ctx_, base.key_,
SSL_FILETYPE_PEM) != SSL_SUCCESS) assert(0);
if (end == server_end) SetDH(base);
base.ssl_ = new SSL(base.ctx_);
base.ssl_->useSocket().set_fd(s);
}
void SetDH(Base& base)
{
static unsigned char dh512_p[] =
{
0xDA,0x58,0x3C,0x16,0xD9,0x85,0x22,0x89,0xD0,0xE4,0xAF,0x75,
0x6F,0x4C,0xCA,0x92,0xDD,0x4B,0xE5,0x33,0xB8,0x04,0xFB,0x0F,
0xED,0x94,0xEF,0x9C,0x8A,0x44,0x03,0xED,0x57,0x46,0x50,0xD3,
0x69,0x99,0xDB,0x29,0xD7,0x76,0x27,0x6B,0xA2,0xD3,0xD4,0x12,
0xE2,0x18,0xF4,0xDD,0x1E,0x08,0x4C,0xF6,0xD8,0x00,0x3E,0x7C,
0x47,0x74,0xE8,0x33,
};
static unsigned char dh512_g[] =
{
0x02,
};
if ( (base.dh_ = DH_new()) ) {
base.dh_->p = BN_bin2bn(dh512_p, sizeof(dh512_p), 0);
base.dh_->g = BN_bin2bn(dh512_g, sizeof(dh512_g), 0);
}
if (!base.dh_->p || !base.dh_->g) {
DH_free(base.dh_);
base.dh_ = 0;
}
SSL_CTX_set_tmp_dh(base.ctx_, base.dh_);
}
void NewCopy(char*& dst, const char* src)
{
size_t len = strlen(src) + 1;
dst = new char[len];
strncpy(dst, src, len);
}
// Client Implementation
struct Client::ClientImpl {
Base base_;
};
Client::Client() : pimpl_(new ClientImpl)
{}
Client::~Client() { delete pimpl_; }
int Client::Connect(SOCKET_T s)
{
SetUpBase(pimpl_->base_, client_end, s);
return SSL_connect(pimpl_->base_.ssl_);
}
int Client::Write(const void* buffer, int sz)
{
return sendData(*pimpl_->base_.ssl_, buffer, sz);
}
int Client::Read(void* buffer, int sz)
{
Data data(min(sz, MAX_RECORD_SIZE), static_cast<opaque*>(buffer));
return receiveData(*pimpl_->base_.ssl_, data);
}
void Client::SetCA(const char* name)
{
NewCopy(pimpl_->base_.ca_, name);
}
void Client::SetCert(const char* name)
{
NewCopy(pimpl_->base_.cert_, name);
}
void Client::SetKey(const char* name)
{
NewCopy(pimpl_->base_.key_, name);
}
// Server Implementation
struct Server::ServerImpl {
Base base_;
};
Server::Server() : pimpl_(new ServerImpl)
{}
Server::~Server() { delete pimpl_; }
int Server::Accept(SOCKET_T s)
{
SetUpBase(pimpl_->base_, server_end, s);
return SSL_accept(pimpl_->base_.ssl_);
}
int Server::Write(const void* buffer, int sz)
{
return sendData(*pimpl_->base_.ssl_, buffer, sz);
}
int Server::Read(void* buffer, int sz)
{
Data data(min(sz, MAX_RECORD_SIZE), static_cast<opaque*>(buffer));
return receiveData(*pimpl_->base_.ssl_, data);
}
void Server::SetCA(const char* name)
{
NewCopy(pimpl_->base_.ca_, name);
}
void Server::SetCert(const char* name)
{
NewCopy(pimpl_->base_.cert_, name);
}
void Server::SetKey(const char* name)
{
NewCopy(pimpl_->base_.key_, name);
}
} // namespace yaSSL
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