blob: 90441c4fe7e5bdaaa82192f0f230c052168fd4dd [file] [log] [blame]
#pragma once
#include <sdbusplus/server.hpp>
#include "activation.hpp"
#include <xyz/openbmc_project/Common/FactoryReset/server.hpp>
#include <xyz/openbmc_project/Object/Enable/server.hpp>
#include "version.hpp"
#include "org/openbmc/Associations/server.hpp"
#include "xyz/openbmc_project/Collection/DeleteAll/server.hpp"
namespace openpower
{
namespace software
{
namespace updater
{
using ItemUpdaterInherit = sdbusplus::server::object::object<
sdbusplus::xyz::openbmc_project::Common::server::FactoryReset,
sdbusplus::org::openbmc::server::Associations,
sdbusplus::xyz::openbmc_project::Collection::server::DeleteAll>;
using GardResetInherit = sdbusplus::server::object::object<
sdbusplus::xyz::openbmc_project::Common::server::FactoryReset>;
using ObjectEnable = sdbusplus::server::object::object<
sdbusplus::xyz::openbmc_project::Object::server::Enable>;
namespace MatchRules = sdbusplus::bus::match::rules;
using AssociationList =
std::vector<std::tuple<std::string, std::string, std::string>>;
constexpr auto GARD_PATH = "/org/open_power/control/gard";
constexpr static auto volatilePath = "/org/open_power/control/volatile";
/** @class GardReset
* @brief OpenBMC GARD factory reset implementation.
* @details An implementation of xyz.openbmc_project.Common.FactoryReset under
* /org/openpower/control/gard.
*/
class GardReset : public GardResetInherit
{
public:
/** @brief Constructs GardReset.
*
* @param[in] bus - The Dbus bus object
* @param[in] path - The Dbus object path
*/
GardReset(sdbusplus::bus::bus& bus, const std::string& path) :
GardResetInherit(bus, path.c_str(), true), bus(bus), path(path)
{
std::vector<std::string> interfaces({interface});
bus.emit_interfaces_added(path.c_str(), interfaces);
}
~GardReset()
{
std::vector<std::string> interfaces({interface});
bus.emit_interfaces_removed(path.c_str(), interfaces);
}
private:
// TODO Remove once openbmc/openbmc#1975 is resolved
static constexpr auto interface = "xyz.openbmc_project.Common.FactoryReset";
sdbusplus::bus::bus& bus;
std::string path;
/**
* @brief GARD factory reset - clears the PNOR GARD partition.
*/
void reset() override;
};
/** @class ItemUpdater
* @brief Manages the activation of the host version items.
*/
class ItemUpdater : public ItemUpdaterInherit
{
public:
/** @brief Constructs ItemUpdater
*
* @param[in] bus - The D-Bus bus object
* @param[in] path - The D-Bus path
*/
ItemUpdater(sdbusplus::bus::bus& bus, const std::string& path) :
ItemUpdaterInherit(bus, path.c_str()), bus(bus),
versionMatch(bus,
MatchRules::interfacesAdded() +
MatchRules::path("/xyz/openbmc_project/software"),
std::bind(std::mem_fn(&ItemUpdater::createActivation),
this, std::placeholders::_1))
{
processPNORImage();
gardReset = std::make_unique<GardReset>(bus, GARD_PATH);
volatileEnable = std::make_unique<ObjectEnable>(bus, volatilePath);
// Emit deferred signal.
emit_object_added();
}
/** @brief Sets the given priority free by incrementing
* any existing priority with the same value by 1
*
* @param[in] value - The priority that needs to be set free.
* @param[in] versionId - The Id of the version for which we
* are trying to free up the priority.
* @return None
*/
void freePriority(uint8_t value, const std::string& versionId);
/** @brief Determine is the given priority is the lowest
*
* @param[in] value - The priority that needs to be checked.
*
* @return boolean corresponding to whether the given
* priority is lowest.
*/
bool isLowestPriority(uint8_t value);
/**
* @brief Create and populate the active PNOR Version.
*/
void processPNORImage();
/** @brief Deletes version
*
* @param[in] entryId - Id of the version to delete
*
* @return None
*/
void erase(std::string entryId);
/**
* @brief Erases any non-active pnor versions.
*/
void deleteAll();
/** @brief Brings the total number of active PNOR versions to
* ACTIVE_PNOR_MAX_ALLOWED -1. This function is intended to be
* run before activating a new PNOR version. If this function
* needs to delete any PNOR version(s) it will delete the
* version(s) with the highest priority, skipping the
* functional PNOR version.
*/
void freeSpace();
/** @brief Determine the software version id
* from the symlink target (e.g. /media/ro-2a1022fe).
*
* @param[in] symlinkPath - The path of the symlink.
* @param[out] id - The version id as a string.
*/
static std::string determineId(const std::string& symlinkPath);
/** @brief Creates an active association to the
* newly active software image
*
* @param[in] path - The path to create the association to.
*/
void createActiveAssociation(const std::string& path);
/** @brief Updates the functional association to the
* new "running" PNOR image
*
* @param[in] path - The path to update the association to.
*/
void updateFunctionalAssociation(const std::string& path);
/** @brief Removes an active association to the software image
*
* @param[in] path - The path to remove the association from.
*/
void removeActiveAssociation(const std::string& path);
/** @brief Persistent GardReset dbus object */
std::unique_ptr<GardReset> gardReset;
/** @brief Check whether the provided image id is the functional one
*
* @param[in] - versionId - The id of the image to check.
*
* @return - Returns true if this version is currently functional.
*/
static bool isVersionFunctional(const std::string& versionId);
/** @brief Persistent ObjectEnable D-Bus object */
std::unique_ptr<ObjectEnable> volatileEnable;
private:
/** @brief Callback function for Software.Version match.
* @details Creates an Activation D-Bus object.
*
* @param[in] msg - Data associated with subscribed signal
*/
void createActivation(sdbusplus::message::message& msg);
/**
* @brief Validates the presence of SquashFS image in the image dir.
*
* @param[in] filePath - The path to the SquashFS image.
* @param[out] result - 0 --> if validation was successful
* - -1--> Otherwise
*/
static int validateSquashFSImage(const std::string& filePath);
/** @brief Persistent sdbusplus D-Bus bus connection. */
sdbusplus::bus::bus& bus;
/** @brief Persistent map of Activation D-Bus objects and their
* version id */
std::map<std::string, std::unique_ptr<Activation>> activations;
/** @brief Persistent map of Version D-Bus objects and their
* version id */
std::map<std::string, std::unique_ptr<Version>> versions;
/** @brief sdbusplus signal match for Software.Version */
sdbusplus::bus::match_t versionMatch;
/** @brief This entry's associations */
AssociationList assocs = {};
/** @brief Clears read only PNOR partition for
* given Activation D-Bus object
*
* @param[in] versionId - The id of the ro partition to remove.
*/
void removeReadOnlyPartition(std::string versionId);
/** @brief Clears read write PNOR partition for
* given Activation D-Bus object
*
* @param[in] versionId - The id of the rw partition to remove.
*/
void removeReadWritePartition(std::string versionId);
/** @brief Clears preserved PNOR partition */
void removePreservedPartition();
/** @brief Host factory reset - clears PNOR partitions for each
* Activation D-Bus object */
void reset() override;
/** @brief Check whether the host is running
*
* @return - Returns true if the Chassis is powered on.
*/
bool isChassisOn();
};
} // namespace updater
} // namespace software
} // namespace openpower