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/* Copyright (c) 2014 Samsung Electronics Co.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License
*
*
* @file pkcs12-impl.cpp
* @author Barlomiej Grzelewski (b.grzelewski@samsung.com)
* @version 1.0
* @brief Certificate Implmentation.
*/
#include <openssl/bio.h>
#include <openssl/evp.h>
#include <openssl/pkcs12.h>
#include <openssl/x509.h>
#include <dpl/log/log.h>
#include <pkcs12-impl.h>
#include <certificate-impl.h>
#include <generic-key.h>
namespace CKM {
namespace {
typedef std::unique_ptr<BIO, std::function<void(BIO*)>> BioUniquePtr;
} // anonymous namespace
PKCS12Impl::PKCS12Impl(const RawBuffer &buffer, const Password &password)
{
EVP_PKEY *pkey = NULL;
X509 *cert = NULL;
STACK_OF(X509) *ca = NULL;
::PKCS12 *pkcs12 = NULL;
BioUniquePtr bio(BIO_new(BIO_s_mem()), BIO_free_all);
LogDebug("Start to parse PKCS12");
int result = BIO_write(bio.get(), buffer.data(), buffer.size());
if (result != static_cast<int>(buffer.size())) {
LogError("BIO_write failed. result = " << result << " Expected: " << buffer.size());
return;
}
pkcs12 = d2i_PKCS12_bio(bio.get(), NULL);
if (pkcs12 == NULL) {
LogDebug("d2i_PKCS12_bio failed.");
return;
}
if (!PKCS12_verify_mac(pkcs12, password.c_str(), password.size())) {
LogDebug("Pkcs12 verify failed. Wrong password");
return;
}
if (!PKCS12_parse(pkcs12, password.c_str(), &pkey, &cert, &ca)) {
LogError("PKCS12_parse failed");
return;
}
if (pkey) {
GenericKey::EvpShPtr ptr(pkey, EVP_PKEY_free);
if (EVP_PKEY_type(pkey->type) == EVP_PKEY_RSA) {
m_pkey = std::make_shared<GenericKey>(ptr, KeyType::KEY_RSA_PRIVATE);
} else if (EVP_PKEY_type(pkey->type) == EVP_PKEY_EC) {
m_pkey = std::make_shared<GenericKey>(ptr, KeyType::KEY_ECDSA_PRIVATE);
} else {
LogError("Unsupported private key type.");
EVP_PKEY_free(pkey);
}
}
if (cert) {
m_cert = std::make_shared<CertificateImpl>(cert, false);
}
if (ca) {
while (sk_X509_num(ca) > 0) {
X509 *top = sk_X509_pop(ca);
m_ca.push_back(std::make_shared<CertificateImpl>(top, false));
}
sk_X509_pop_free(ca, X509_free);
}
}
KeyShPtr PKCS12Impl::getKey() const {
return m_pkey;
}
CertificateShPtr PKCS12Impl::getCertificate() const {
return m_cert;
}
CertificateShPtrVector PKCS12Impl::getCaCertificateShPtrVector() const {
return m_ca;
}
bool PKCS12Impl::empty() const {
return m_pkey.get() == NULL && m_cert.get() == NULL && m_ca.empty();
}
PKCS12Impl::~PKCS12Impl()
{}
PKCS12ShPtr PKCS12::create(const RawBuffer &rawBuffer, const Password &password) {
try {
auto output = std::make_shared<PKCS12Impl>(rawBuffer, password);
if (output->empty())
output.reset();
return output;
} catch (const std::bad_alloc &e) {
LogDebug("Bad alloc was caught during PKCS12 creation");
} catch (...) {
LogError("Critical error: Unknown exception was caught during PCKS12Impl creation!");
}
return PKCS12ShPtr();
}
} // namespace CKM
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