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// Copyright (C) 2010-2014 David Sugar, Tycho Softworks.
// Copyright (C) 2015-2020 Cherokees of Idaho.
//
// This file is part of GNU uCommon C++.
//
// GNU uCommon C++ is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published
// by the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// GNU uCommon C++ 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with GNU uCommon C++. If not, see <http://www.gnu.org/licenses/>.
#include "local.h"
#ifdef HAVE_OPENSSL_FIPS_H
#include <openssl/fips.h>
#endif
namespace ucommon {
static mutex_t *private_locks = NULL;
extern "C" {
static void ssl_lock(int mode, int n, const char *file, int line)
{
if((mode & 0x03) == CRYPTO_LOCK)
private_locks[n].acquire();
else if((mode & 0x03) == CRYPTO_UNLOCK)
private_locks[n].release();
}
static unsigned long ssl_self(void)
{
#ifdef _MSWINDOWS_
return GetCurrentThreadId();
#else
return (long)Thread::self();
#endif
}
}
bool secure::fips(void)
{
#ifdef HAVE_OPENSSL_FIPS_H
// must always be first init function called...
if(private_locks)
return false;
if(!FIPS_mode_set(1))
return false;
return init();
#else
return false;
#endif
}
bool secure::init(void)
{
if(private_locks)
return true;
Thread::init();
Socket::init();
SSL_library_init();
SSL_load_error_strings();
ERR_load_BIO_strings();
OpenSSL_add_all_algorithms();
OpenSSL_add_all_digests();
if(CRYPTO_get_id_callback() != NULL)
return false;
private_locks = new Mutex[CRYPTO_num_locks()];
CRYPTO_set_id_callback(ssl_self);
CRYPTO_set_locking_callback(ssl_lock);
return true;
}
void secure::cipher(secure *scontext, const char *ciphers)
{
__context *ctx = (__context *)scontext;
if(!ctx)
return;
SSL_CTX_set_cipher_list(ctx->ctx, ciphers);
}
secure::client_t secure::client(const char *ca, const char *paths)
{
__context *ctx = new(__context);
secure::init();
if(!ctx)
return NULL;
ctx->error = secure::OK;
ctx->ctx = SSL_CTX_new(SSLv23_client_method());
if(!ctx->ctx) {
ctx->error = secure::INVALID;
return ctx;
}
if(!ca && !paths) {
if(!SSL_CTX_set_default_verify_paths(ctx->ctx)) {
ctx->error = secure::INVALID_AUTHORITY;
return ctx;
}
}
else if(!SSL_CTX_load_verify_locations(ctx->ctx, ca, paths)) {
ctx->error = secure::INVALID_AUTHORITY;
return ctx;
}
return ctx;
}
secure::server_t secure::server(const char *ca, const char *paths)
{
__context *ctx = new(__context);
if(!ctx)
return NULL;
secure::init();
ctx->error = secure::OK;
ctx->ctx = SSL_CTX_new(SSLv23_server_method());
if(!ctx->ctx) {
ctx->error = secure::INVALID;
return ctx;
}
if(!SSL_CTX_use_certificate_chain_file(ctx->ctx, ca)) {
ctx->error = secure::MISSING_CERTIFICATE;
return ctx;
}
if(!SSL_CTX_use_PrivateKey_file(ctx->ctx, ca, SSL_FILETYPE_PEM)) {
ctx->error = secure::MISSING_PRIVATEKEY;
return ctx;
}
if(!SSL_CTX_check_private_key(ctx->ctx)) {
ctx->error = secure::INVALID_CERTIFICATE;
return ctx;
}
if(!paths)
paths = oscerts();
if(!SSL_CTX_load_verify_locations(ctx->ctx, ca, paths)) {
ctx->error = secure::INVALID_AUTHORITY;
return ctx;
}
return ctx;
}
secure::~secure()
{
}
__context::~__context()
{
if(ctx)
SSL_CTX_free(ctx);
}
} // namespace ucommon
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