blob: 57fcdf40e814ef2321917a63a83d140d1b4b9075 [file] [log] [blame]
#pragma once
#include "bios_attribute.hpp"
#include "bios_table.hpp"
#include "pldmd/dbus_impl_requester.hpp"
#include "requester/handler.hpp"
#include <libpldm/bios_table.h>
#include <nlohmann/json.hpp>
#include <functional>
#include <iostream>
#include <memory>
#include <optional>
#include <set>
#include <string>
#include <vector>
namespace pldm
{
namespace responder
{
namespace bios
{
enum class BoundType
{
LowerBound,
UpperBound,
ScalarIncrement,
MinStringLength,
MaxStringLength,
OneOf
};
using AttributeName = std::string;
using AttributeType = std::string;
using ReadonlyStatus = bool;
using DisplayName = std::string;
using Description = std::string;
using MenuPath = std::string;
using CurrentValue = std::variant<int64_t, std::string>;
using DefaultValue = std::variant<int64_t, std::string>;
using OptionString = std::string;
using OptionValue = std::variant<int64_t, std::string>;
using Option = std::vector<std::tuple<OptionString, OptionValue>>;
using BIOSTableObj =
std::tuple<AttributeType, ReadonlyStatus, DisplayName, Description,
MenuPath, CurrentValue, DefaultValue, Option>;
using BaseBIOSTable = std::map<AttributeName, BIOSTableObj>;
using PendingObj = std::tuple<AttributeType, CurrentValue>;
using PendingAttributes = std::map<AttributeName, PendingObj>;
/** @class BIOSConfig
* @brief Manager BIOS Attributes
*/
class BIOSConfig
{
public:
BIOSConfig() = delete;
BIOSConfig(const BIOSConfig&) = delete;
BIOSConfig(BIOSConfig&&) = delete;
BIOSConfig& operator=(const BIOSConfig&) = delete;
BIOSConfig& operator=(BIOSConfig&&) = delete;
~BIOSConfig() = default;
/** @brief Construct BIOSConfig
* @param[in] jsonDir - The directory where json file exists
* @param[in] tableDir - The directory where the persistent table is placed
* @param[in] dbusHandler - Dbus Handler
* @param[in] fd - socket descriptor to communicate to host
* @param[in] eid - MCTP EID of host firmware
* @param[in] requester - pointer to Requester object
* @param[in] handler - PLDM request handler
*/
explicit BIOSConfig(
const char* jsonDir, const char* tableDir,
pldm::utils::DBusHandler* const dbusHandler, int fd, uint8_t eid,
dbus_api::Requester* requester,
pldm::requester::Handler<pldm::requester::Request>* handler);
/** @brief Set attribute value on dbus and attribute value table
* @param[in] entry - attribute value entry
* @param[in] size - size of the attribute value entry
* @param[in] isBMC - indicates if the attribute is set by BMC
* @param[in] updateDBus - update Attr value D-Bus property
* if this is set to true
* @param[in] updateBaseBIOSTable - update BaseBIOSTable D-Bus property
* if this is set to true
* @return pldm_completion_codes
*/
int setAttrValue(const void* entry, size_t size, bool isBMC,
bool updateDBus = true, bool updateBaseBIOSTable = true);
/** @brief Remove the persistent tables */
void removeTables();
/** @brief Build bios tables(string,attribute,attribute value table)*/
void buildTables();
/** @brief Get BIOS table of specified type
* @param[in] tableType - The table type
* @return The bios table, std::nullopt if the table is unaviliable
*/
std::optional<Table> getBIOSTable(pldm_bios_table_types tableType);
/** @brief set BIOS table
* @param[in] tableType - Indicates what table is being transferred
* {BIOSStringTable=0x0, BIOSAttributeTable=0x1,
* BIOSAttributeValueTable=0x2}
* @param[in] table - table data
* @param[in] updateBaseBIOSTable - update BaseBIOSTable D-Bus property
* if this is set to true
* @return pldm_completion_codes
*/
int setBIOSTable(uint8_t tableType, const Table& table,
bool updateBaseBIOSTable = true);
private:
/** @enum Index into the fields in the BaseBIOSTable
*/
enum class Index : uint8_t
{
attributeType = 0,
readOnly,
displayName,
description,
menuPath,
currentValue,
defaultValue,
options,
};
const fs::path jsonDir;
const fs::path tableDir;
pldm::utils::DBusHandler* const dbusHandler;
BaseBIOSTable baseBIOSTableMaps;
/** @brief socket descriptor to communicate to host */
int fd;
/** @brief MCTP EID of host firmware */
uint8_t eid;
/** @brief pointer to Requester object, primarily used to access API to
* obtain PLDM instance id.
*/
dbus_api::Requester* requester;
/** @brief PLDM request handler */
pldm::requester::Handler<pldm::requester::Request>* handler;
// vector persists all attributes
using BIOSAttributes = std::vector<std::unique_ptr<BIOSAttribute>>;
BIOSAttributes biosAttributes;
using propName = std::string;
using DbusChObjProperties = std::map<propName, pldm::utils::PropertyValue>;
// vector to catch the D-Bus property change signals for BIOS attributes
std::vector<std::unique_ptr<sdbusplus::bus::match_t>> biosAttrMatch;
/** @brief Method to update a BIOS attribute when the corresponding Dbus
* property is changed
* @param[in] chProperties - list of properties which have changed
* @param[in] biosAttrIndex - Index of BIOSAttribute pointer in
* biosAttributes
* @return - none
*/
void processBiosAttrChangeNotification(
const DbusChObjProperties& chProperties, uint32_t biosAttrIndex);
/** @brief Construct an attribute and persist it
* @tparam T - attribute type
* @param[in] entry - json entry
*/
template <typename T>
void constructAttribute(const Json& entry)
{
try
{
biosAttributes.push_back(std::make_unique<T>(entry, dbusHandler));
auto biosAttrIndex = biosAttributes.size() - 1;
auto dBusMap = biosAttributes[biosAttrIndex]->getDBusMap();
if (dBusMap.has_value())
{
using namespace sdbusplus::bus::match::rules;
biosAttrMatch.push_back(
std::make_unique<sdbusplus::bus::match_t>(
pldm::utils::DBusHandler::getBus(),
propertiesChanged(dBusMap->objectPath,
dBusMap->interface),
[this, biosAttrIndex](sdbusplus::message_t& msg) {
DbusChObjProperties props;
std::string iface;
msg.read(iface, props);
processBiosAttrChangeNotification(props,
biosAttrIndex);
}));
}
}
catch (const std::exception& e)
{
std::cerr << "Constructs Attribute Error, " << e.what()
<< std::endl;
}
}
/** Construct attributes and persist them */
void constructAttributes();
using ParseHandler = std::function<void(const Json& entry)>;
/** @brief Helper function to parse json
* @param[in] filePath - Path of json file
* @param[in] handler - Handler to process each entry in the json
*/
void load(const fs::path& filePath, ParseHandler handler);
/** @brief Build String Table and persist it
* @return The built string table, std::nullopt if it fails.
*/
std::optional<Table> buildAndStoreStringTable();
/** @brief Build attribute table and attribute value table and persist them
* Read the BaseBIOSTable from the bios-settings-manager and update
* attribute table and attribute value table.
*
* @param[in] stringTable - The string Table
*/
void buildAndStoreAttrTables(const Table& stringTable);
/** @brief Persist the table
* @param[in] path - Path to persist the table
* @param[in] table - The table
*/
void storeTable(const fs::path& path, const Table& table);
/** @brief Load bios table to ram
* @param[in] path - Path of the table
* @return The table, std::nullopt if loading fails
*/
std::optional<Table> loadTable(const fs::path& path);
/** @brief Method to decode the attribute name from the string handle
*
* @param[in] stringEntry - string entry from string table
* @return the decoded string
*/
std::string decodeStringFromStringEntry(
const pldm_bios_string_table_entry* stringEntry);
/** @brief Method to print the string Handle by passing the attribute Handle
* of the bios attribute that got updated
*
* @param[in] handle - the Attribute handle of the bios attribute
* @param[in] index - index to the possible value handles
* @param[in] attrTable - the attribute table
* @param[in] stringTable - the string table
* @return string handle from the string table and decoded string to the
* name handle
*/
std::string displayStringHandle(uint16_t handle, uint8_t index,
const std::optional<Table>& attrTable,
const std::optional<Table>& stringTable);
/** @brief Method to trace the bios attribute which got changed
*
* @param[in] attrValueEntry - The attribute value entry to update
* @param[in] attrEntry - The attribute table entry
* @param[in] isBMC - indicates if the attribute is set by BMC
*/
void traceBIOSUpdate(const pldm_bios_attr_val_table_entry* attrValueEntry,
const pldm_bios_attr_table_entry* attrEntry,
bool isBMC);
/** @brief Check the attribute value to update
* @param[in] attrValueEntry - The attribute value entry to update
* @param[in] attrEntry - The attribute table entry
* @param[in] stringTable - The string table
* @return pldm_completion_codes
*/
int checkAttrValueToUpdate(
const pldm_bios_attr_val_table_entry* attrValueEntry,
const pldm_bios_attr_table_entry* attrEntry, Table& stringTable);
/** @brief Check the attribute table
* @param[in] table - The table
* @return pldm_completion_codes
*/
int checkAttributeTable(const Table& table);
/** @brief Check the attribute value table
* @param[in] table - The table
* @return pldm_completion_codes
*/
int checkAttributeValueTable(const Table& table);
/** @brief Update the BaseBIOSTable property of the D-Bus interface
*/
void updateBaseBIOSTableProperty();
/** @brief Listen the PendingAttributes property of the D-Bus interface and
* update BaseBIOSTable
*/
void listenPendingAttributes();
/** @brief Find attribute handle from bios attribute table
* @param[in] attrName - attribute name
* @return attribute handle
*/
uint16_t findAttrHandle(const std::string& attrName);
/** @brief Listen the PendingAttributes property of the D-Bus interface
* and update BaseBIOSTable
* @param[in] msg - Data associated with subscribed signal
*/
void constructPendingAttribute(const PendingAttributes& pendingAttributes);
};
} // namespace bios
} // namespace responder
} // namespace pldm