blob: 1f03863832589993526b252d2743159f52a66d13 [file] [log] [blame]
#pragma once
#include "utils.hpp"
#include <stdint.h>
#include <filesystem>
#include <fstream>
#include <functional>
#include <iostream>
#include <nlohmann/json.hpp>
#include <string>
#include <xyz/openbmc_project/Common/error.hpp>
#include "libpldm/pdr.h"
using InternalFailure =
sdbusplus::xyz::openbmc_project::Common::Error::InternalFailure;
namespace fs = std::filesystem;
namespace pldm
{
namespace responder
{
namespace pdr_utils
{
/** @struct PdrEntry
* PDR entry structure that acts as a PDR record structure in the PDR
* repository to handle PDR APIs.
*/
struct PdrEntry
{
uint8_t* data;
uint32_t size;
union
{
uint32_t recordHandle;
uint32_t nextRecordHandle;
} handle;
};
using Type = uint8_t;
using Json = nlohmann::json;
using RecordHandle = uint32_t;
using State = uint8_t;
using PossibleValues = std::vector<uint8_t>;
/** @brief Map of DBus property State to attribute value
*/
using StatestoDbusVal = std::map<State, pldm::utils::PropertyValue>;
/** @brief Parse PDR JSON file and output Json object
*
* @param[in] path - path of PDR JSON file
*
* @return Json - Json object
*/
inline Json readJson(const std::string& path)
{
fs::path dir(path);
if (!fs::exists(dir) || fs::is_empty(dir))
{
throw InternalFailure();
}
std::ifstream jsonFile(path);
if (!jsonFile.is_open())
{
std::cerr << "Error opening PDR JSON file, PATH=" << path << "\n";
return {};
}
return Json::parse(jsonFile);
}
/** @brief Populate the mapping between D-Bus property stateId and attribute
* value for the effecter PDR enumeration attribute.
*
* @param[in] type - type of the D-Bus property
* @param[in] dBusValues - json array of D-Bus property values
* @param[in] pv - Possible values for the effecter PDR enumeration attribute
*
* @return StatestoDbusVal - Map of D-Bus property stateId to attribute value
*/
StatestoDbusVal populateMapping(const std::string& type, const Json& dBusValues,
const PossibleValues& pv);
/**
* @class RepoInterface
*
* @brief Abstract class describing the interface API to the PDR repository,
* this class wraps operations used to handle the new PDR APIs.
*/
class RepoInterface
{
public:
RepoInterface(pldm_pdr* repo) : repo(repo)
{
}
virtual ~RepoInterface() = default;
/** @brief Get an opaque pldm_pdr structure
*
* @return pldm_pdr - pldm_pdr structure
*/
virtual pldm_pdr* getPdr() const = 0;
/** @brief Add a PDR record to a PDR repository
*
* @param[in] pdrEntry - PDR records entry(data, size, recordHandle)
*
* @return uint32_t - record handle assigned to PDR record
*/
virtual RecordHandle addRecord(const PdrEntry& pdrEntry) = 0;
/** @brief Get the first PDR record from a PDR repository
*
* @param[in] pdrEntry - PDR records entry(data, size, nextRecordHandle)
*
* @return opaque pointer acting as PDR record handle, will be NULL if
* record was not found
*/
virtual const pldm_pdr_record* getFirstRecord(PdrEntry& pdrEntry) = 0;
/** @brief Get the next PDR record from a PDR repository
*
* @param[in] currRecord - opaque pointer acting as a PDR record handle
* @param[in] pdrEntry - PDR records entry(data, size, nextRecordHandle)
*
* @return opaque pointer acting as PDR record handle, will be NULL if
* record was not found
*/
virtual const pldm_pdr_record*
getNextRecord(const pldm_pdr_record* currRecord,
PdrEntry& pdrEntry) = 0;
/** @brief Get record handle of a PDR record
*
* @param[in] record - opaque pointer acting as a PDR record handle
*
* @return uint32_t - record handle assigned to PDR record; 0 if record is
* not found
*/
virtual uint32_t getRecordHandle(const pldm_pdr_record* record) const = 0;
/** @brief Get number of records in a PDR repository
*
* @return uint32_t - number of records
*/
virtual uint32_t getRecordCount() = 0;
/** @brief Determine if records are empty in a PDR repository
*
* @return bool - true means empty and false means not empty
*/
virtual bool empty() = 0;
protected:
pldm_pdr* repo;
};
/**
* @class Repo
*
* Wrapper class to handle the PDR APIs
*
* This class wraps operations used to handle PDR APIs.
*/
class Repo : public RepoInterface
{
public:
Repo(pldm_pdr* repo) : RepoInterface(repo)
{
}
pldm_pdr* getPdr() const override;
RecordHandle addRecord(const PdrEntry& pdrEntry) override;
const pldm_pdr_record* getFirstRecord(PdrEntry& pdrEntry) override;
const pldm_pdr_record* getNextRecord(const pldm_pdr_record* currRecord,
PdrEntry& pdrEntry) override;
uint32_t getRecordHandle(const pldm_pdr_record* record) const override;
uint32_t getRecordCount() override;
bool empty() override;
};
} // namespace pdr_utils
} // namespace responder
} // namespace pldm