#pragma once
#include "libpldm/base.h"
#include "libpldm/bios.h"
#include "libpldm/platform.h"
#include <stdint.h>
#include <systemd/sd-bus.h>
#include <unistd.h>
#include <nlohmann/json.hpp>
#include <sdbusplus/server.hpp>
#include <xyz/openbmc_project/Logging/Entry/server.hpp>
#include <exception>
#include <filesystem>
#include <iostream>
#include <string>
#include <variant>
#include <vector>
namespace pldm
{
namespace utils
{
namespace fs = std::filesystem;
using Json = nlohmann::json;
/** @struct CustomFD
*
* RAII wrapper for file descriptor.
*/
struct CustomFD
{
CustomFD(const CustomFD&) = delete;
CustomFD& operator=(const CustomFD&) = delete;
CustomFD(CustomFD&&) = delete;
CustomFD& operator=(CustomFD&&) = delete;
CustomFD(int fd) : fd(fd)
{}
~CustomFD()
{
if (fd >= 0)
{
close(fd);
}
}
int operator()() const
{
return fd;
}
private:
int fd = -1;
};
/** @brief Calculate the pad for PLDM data
*
* @param[in] data - Length of the data
* @return - uint8_t - number of pad bytes
*/
uint8_t getNumPadBytes(uint32_t data);
/** @brief Convert uint64 to date
*
* @param[in] data - time date of uint64
* @param[out] year - year number in dec
* @param[out] month - month number in dec
* @param[out] day - day of the month in dec
* @param[out] hour - number of hours in dec
* @param[out] min - number of minutes in dec
* @param[out] sec - number of seconds in dec
* @return true if decode success, false if decode faild
*/
bool uintToDate(uint64_t data, uint16_t* year, uint8_t* month, uint8_t* day,
uint8_t* hour, uint8_t* min, uint8_t* sec);
/** @brief Convert effecter data to structure of set_effecter_state_field
*
* @param[in] effecterData - the date of effecter
* @param[in] effecterCount - the number of individual sets of effecter
* information
* @return[out] parse success and get a valid set_effecter_state_field
* structure, return nullopt means parse failed
*/
std::optional<std::vector<set_effecter_state_field>>
parseEffecterData(const std::vector<uint8_t>& effecterData,
uint8_t effecterCount);
/**
* @brief creates an error log
* @param[in] errorMsg - the error message
*/
void reportError(const char* errorMsg);
/** @brief Convert any Decimal number to BCD
*
* @tparam[in] decimal - Decimal number
* @return Corresponding BCD number
*/
template <typename T>
T decimalToBcd(T decimal)
{
T bcd = 0;
T rem = 0;
auto cnt = 0;
while (decimal)
{
rem = decimal % 10;
bcd = bcd + (rem << cnt);
decimal = decimal / 10;
cnt += 4;
}
return bcd;
}
constexpr auto dbusProperties = "org.freedesktop.DBus.Properties";
constexpr auto mapperService = "xyz.openbmc_project.ObjectMapper";
struct DBusMapping
{
std::string objectPath; //!< D-Bus object path
std::string interface; //!< D-Bus interface
std::string propertyName; //!< D-Bus property name
std::string propertyType; //!< D-Bus property type
};
using PropertyValue =
std::variant<bool, uint8_t, int16_t, uint16_t, int32_t, uint32_t, int64_t,
uint64_t, double, std::string>;
using DbusProp = std::string;
using DbusChangedProps = std::map<DbusProp, PropertyValue>;
/**
* @brief The interface for DBusHandler
*/
class DBusHandlerInterface
{
public:
virtual ~DBusHandlerInterface() = default;
virtual std::string getService(const char* path,
const char* interface) const = 0;
virtual void setDbusProperty(const DBusMapping& dBusMap,
const PropertyValue& value) const = 0;
virtual PropertyValue
getDbusPropertyVariant(const char* objPath, const char* dbusProp,
const char* dbusInterface) const = 0;
};
/**
* @class DBusHandler
*
* Wrapper class to handle the D-Bus calls
*
* This class contains the APIs to handle the D-Bus calls
* to cater the request from pldm requester.
* A class is created to mock the apis in the test cases
*/
class DBusHandler : public DBusHandlerInterface
{
public:
/** @brief Get the bus connection. */
static auto& getBus()
{
static auto bus = sdbusplus::bus::new_default();
return bus;
}
/**
* @brief Get the DBUS Service name for the input dbus path
*
* @param[in] path - DBUS object path
* @param[in] interface - DBUS Interface
*
* @return std::string - the dbus service name
*
* @throw sdbusplus::exception::SdBusError when it fails
*/
std::string getService(const char* path,
const char* interface) const override;
/** @brief Get property(type: variant) from the requested dbus
*
* @param[in] objPath - The Dbus object path
* @param[in] dbusProp - The property name to get
* @param[in] dbusInterface - The Dbus interface
*
* @return The value of the property(type: variant)
*
* @throw sdbusplus::exception::SdBusError when it fails
*/
PropertyValue
getDbusPropertyVariant(const char* objPath, const char* dbusProp,
const char* dbusInterface) const override;
/** @brief The template function to get property from the requested dbus
* path
*
* @tparam Property - Excepted type of the property on dbus
*
* @param[in] objPath - The Dbus object path
* @param[in] dbusProp - The property name to get
* @param[in] dbusInterface - The Dbus interface
*
* @return The value of the property
*
* @throw sdbusplus::exception::SdBusError when dbus request fails
* std::bad_variant_access when \p Property and property on dbus do
* not match
*/
template <typename Property>
auto getDbusProperty(const char* objPath, const char* dbusProp,
const char* dbusInterface)
{
auto VariantValue =
getDbusPropertyVariant(objPath, dbusProp, dbusInterface);
return std::get<Property>(VariantValue);
}
/** @brief Set Dbus property
*
* @param[in] dBusMap - Object path, property name, interface and property
* type for the D-Bus object
* @param[in] value - The value to be set
*
* @throw sdbusplus::exception::SdBusError when it fails
*/
void setDbusProperty(const DBusMapping& dBusMap,
const PropertyValue& value) const override;
};
/** @brief Fetch parent D-Bus object based on pathname
*
* @param[in] dbusObj - child D-Bus object
*
* @return std::string - the parent D-Bus object path
*/
inline std::string findParent(const std::string& dbusObj)
{
fs::path p(dbusObj);
return p.parent_path().string();
}
/** @brief Read (static) MCTP EID of host firmware from a file
*
* @return uint8_t - MCTP EID
*/
uint8_t readHostEID();
/** @brief Convert a value in the JSON to a D-Bus property value
*
* @param[in] type - type of the D-Bus property
* @param[in] value - value in the JSON file
*
* @return PropertyValue - the D-Bus property value
*/
PropertyValue jsonEntryToDbusVal(std::string_view type,
const nlohmann::json& value);
/** @brief Find State Effecter PDR
* @param[in] tid - PLDM terminus ID.
* @param[in] entityID - entity that can be associated with PLDM State set.
* @param[in] stateSetId - value that identifies PLDM State set.
* @param[in] repo - pointer to BMC's primary PDR repo.
* @return array[array[uint8_t]] - StateEffecterPDRs
*/
std::vector<std::vector<uint8_t>> findStateEffecterPDR(uint8_t tid,
uint16_t entityID,
uint16_t stateSetId,
const pldm_pdr* repo);
/** @brief Find State Sensor PDR
* @param[in] tid - PLDM terminus ID.
* @param[in] entityID - entity that can be associated with PLDM State set.
* @param[in] stateSetId - value that identifies PLDM State set.
* @param[in] repo - pointer to BMC's primary PDR repo.
* @return array[array[uint8_t]] - StateSensorPDRs
*/
std::vector<std::vector<uint8_t>> findStateSensorPDR(uint8_t tid,
uint16_t entityID,
uint16_t stateSetId,
const pldm_pdr* repo);
/** @brief Find effecter id from a state effecter pdr
* @param[in] pdrRepo - PDR repository
* @param[in] entityType - entity type
* @param[in] entityInstance - entity instance number
* @param[in] containerId - container id
* @param[in] stateSetId - state set id
* @param[in] localOrRemote - true for checking local repo and false for remote
* repo
*
* @return uint16_t - the effecter id
*/
uint16_t findStateEffecterId(const pldm_pdr* pdrRepo, uint16_t entityType,
uint16_t entityInstance, uint16_t containerId,
uint16_t stateSetId, bool localOrRemote);
/** @brief Emit the sensor event signal
*
* @param[in] tid - the terminus id
* @param[in] sensorId - sensorID value of the sensor
* @param[in] sensorOffset - Identifies which state sensor within a
* composite state sensor the event is being returned for
* @param[in] eventState - The event state value from the state change that
* triggered the event message
* @param[in] previousEventState - The event state value for the state from
* which the present event state was entered.
* @return PLDM completion code
*/
int emitStateSensorEventSignal(uint8_t tid, uint16_t sensorId,
uint8_t sensorOffset, uint8_t eventState,
uint8_t previousEventState);
} // namespace utils
} // namespace pldm