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#include "config.h"
#include "csr.hpp"
#include <openssl/bio.h>
#include <openssl/buffer.h>
#include <openssl/ossl_typ.h>
#include <openssl/pem.h>
#include <openssl/x509.h>
#include <phosphor-logging/elog-errors.hpp>
#include <phosphor-logging/elog.hpp>
#include <phosphor-logging/lg2.hpp>
#include <xyz/openbmc_project/Certs/error.hpp>
#include <xyz/openbmc_project/Common/error.hpp>
#include <cstdio>
#include <filesystem>
#include <memory>
#include <utility>
namespace phosphor::certs
{
using ::phosphor::logging::elog;
using ::sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure;
namespace fs = std::filesystem;
using X509ReqPtr = std::unique_ptr<X509_REQ, decltype(&::X509_REQ_free)>;
using BIOPtr = std::unique_ptr<BIO, decltype(&::BIO_free_all)>;
CSR::CSR(sdbusplus::bus_t& bus, const char* path, std::string&& installPath,
const Status& status) :
internal::CSRInterface(bus, path,
internal::CSRInterface::action::defer_emit),
objectPath(path), certInstallPath(std::move(installPath)), csrStatus(status)
{
// Emit deferred signal.
this->emit_object_added();
}
std::string CSR::csr()
{
if (csrStatus == Status::failure)
{
lg2::error("Failure in Generating CSR");
elog<InternalFailure>();
}
fs::path csrFilePath = certInstallPath;
csrFilePath = csrFilePath.parent_path() / defaultCSRFileName;
if (!fs::exists(csrFilePath))
{
lg2::error("CSR file doesn't exists, FILENAME:{FILENAME}", "FILENAME",
csrFilePath);
elog<InternalFailure>();
}
FILE* fp = std::fopen(csrFilePath.c_str(), "r");
X509ReqPtr x509Req(PEM_read_X509_REQ(fp, nullptr, nullptr, nullptr),
::X509_REQ_free);
if (x509Req == nullptr || fp == nullptr)
{
if (fp != nullptr)
{
std::fclose(fp);
}
lg2::error("ERROR occurred while reading CSR file, FILENAME:{FILENAME}",
"FILENAME", csrFilePath);
elog<InternalFailure>();
}
std::fclose(fp);
BIOPtr bio(BIO_new(BIO_s_mem()), ::BIO_free_all);
int ret = PEM_write_bio_X509_REQ(bio.get(), x509Req.get());
if (ret <= 0)
{
lg2::error("Error occurred while calling PEM_write_bio_X509_REQ");
elog<InternalFailure>();
}
BUF_MEM* mem = nullptr;
BIO_get_mem_ptr(bio.get(), &mem);
std::string pem(mem->data, mem->length);
return pem;
}
} // namespace phosphor::certs
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