mirror of https://github.com/Icinga/icinga2.git
152 lines
4.9 KiB
C++
152 lines
4.9 KiB
C++
/******************************************************************************
|
|
* Icinga 2 *
|
|
* Copyright (C) 2012 Icinga Development Team (http://www.icinga.org/) *
|
|
* *
|
|
* This program 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. *
|
|
* *
|
|
* This program 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
|
|
******************************************************************************/
|
|
|
|
#include "base/tlsutility.h"
|
|
|
|
namespace icinga
|
|
{
|
|
|
|
static bool l_SSLInitialized = false;
|
|
|
|
/**
|
|
* Initializes the OpenSSL library.
|
|
*/
|
|
static void InitializeOpenSSL(void)
|
|
{
|
|
if (l_SSLInitialized)
|
|
return;
|
|
|
|
SSL_library_init();
|
|
SSL_load_error_strings();
|
|
|
|
l_SSLInitialized = true;
|
|
}
|
|
|
|
/**
|
|
* Initializes an SSL context using the specified certificates.
|
|
*
|
|
* @param pubkey The public key.
|
|
* @param privkey The matching private key.
|
|
* @param cakey CA certificate chain file.
|
|
* @returns An SSL context.
|
|
*/
|
|
shared_ptr<SSL_CTX> MakeSSLContext(const String& pubkey, const String& privkey, const String& cakey)
|
|
{
|
|
InitializeOpenSSL();
|
|
|
|
shared_ptr<SSL_CTX> sslContext = shared_ptr<SSL_CTX>(SSL_CTX_new(TLSv1_method()), SSL_CTX_free);
|
|
|
|
SSL_CTX_set_mode(sslContext.get(), SSL_MODE_ENABLE_PARTIAL_WRITE | SSL_MODE_ACCEPT_MOVING_WRITE_BUFFER);
|
|
|
|
if (!SSL_CTX_use_certificate_chain_file(sslContext.get(), pubkey.CStr())) {
|
|
BOOST_THROW_EXCEPTION(openssl_error()
|
|
<< boost::errinfo_api_function("SSL_CTX_use_certificate_chain_file")
|
|
<< errinfo_openssl_error(ERR_get_error())
|
|
<< boost::errinfo_file_name(pubkey));
|
|
}
|
|
|
|
if (!SSL_CTX_use_PrivateKey_file(sslContext.get(), privkey.CStr(), SSL_FILETYPE_PEM)) {
|
|
BOOST_THROW_EXCEPTION(openssl_error()
|
|
<< boost::errinfo_api_function("SSL_CTX_use_PrivateKey_file")
|
|
<< errinfo_openssl_error(ERR_get_error())
|
|
<< boost::errinfo_file_name(privkey));
|
|
}
|
|
|
|
if (!SSL_CTX_load_verify_locations(sslContext.get(), cakey.CStr(), NULL)) {
|
|
BOOST_THROW_EXCEPTION(openssl_error()
|
|
<< boost::errinfo_api_function("SSL_CTX_load_verify_locations")
|
|
<< errinfo_openssl_error(ERR_get_error())
|
|
<< boost::errinfo_file_name(cakey));
|
|
}
|
|
|
|
STACK_OF(X509_NAME) *cert_names;
|
|
|
|
cert_names = SSL_load_client_CA_file(cakey.CStr());
|
|
if (cert_names == NULL) {
|
|
BOOST_THROW_EXCEPTION(openssl_error()
|
|
<< boost::errinfo_api_function("SSL_load_client_CA_file")
|
|
<< errinfo_openssl_error(ERR_get_error())
|
|
<< boost::errinfo_file_name(cakey));
|
|
}
|
|
|
|
SSL_CTX_set_client_CA_list(sslContext.get(), cert_names);
|
|
|
|
return sslContext;
|
|
}
|
|
|
|
/**
|
|
* Retrieves the common name for an X509 certificate.
|
|
*
|
|
* @param certificate The X509 certificate.
|
|
* @returns The common name.
|
|
*/
|
|
String GetCertificateCN(const shared_ptr<X509>& certificate)
|
|
{
|
|
char buffer[256];
|
|
|
|
int rc = X509_NAME_get_text_by_NID(X509_get_subject_name(certificate.get()),
|
|
NID_commonName, buffer, sizeof(buffer));
|
|
|
|
if (rc == -1) {
|
|
BOOST_THROW_EXCEPTION(openssl_error()
|
|
<< boost::errinfo_api_function("X509_NAME_get_text_by_NID")
|
|
<< errinfo_openssl_error(ERR_get_error()));
|
|
}
|
|
|
|
return buffer;
|
|
}
|
|
|
|
/**
|
|
* Retrieves an X509 certificate from the specified file.
|
|
*
|
|
* @param pemfile The filename.
|
|
* @returns An X509 certificate.
|
|
*/
|
|
shared_ptr<X509> GetX509Certificate(const String& pemfile)
|
|
{
|
|
X509 *cert;
|
|
BIO *fpcert = BIO_new(BIO_s_file());
|
|
|
|
if (fpcert == NULL) {
|
|
BOOST_THROW_EXCEPTION(openssl_error()
|
|
<< boost::errinfo_api_function("BIO_new")
|
|
<< errinfo_openssl_error(ERR_get_error()));
|
|
}
|
|
|
|
if (BIO_read_filename(fpcert, pemfile.CStr()) < 0) {
|
|
BOOST_THROW_EXCEPTION(openssl_error()
|
|
<< boost::errinfo_api_function("BIO_read_filename")
|
|
<< errinfo_openssl_error(ERR_get_error())
|
|
<< boost::errinfo_file_name(pemfile));
|
|
}
|
|
|
|
cert = PEM_read_bio_X509_AUX(fpcert, NULL, NULL, NULL);
|
|
if (cert == NULL) {
|
|
BOOST_THROW_EXCEPTION(openssl_error()
|
|
<< boost::errinfo_api_function("PEM_read_bio_X509_AUX")
|
|
<< errinfo_openssl_error(ERR_get_error()));
|
|
}
|
|
|
|
BIO_free(fpcert);
|
|
|
|
return shared_ptr<X509>(cert, X509_free);
|
|
}
|
|
|
|
}
|