blob: 6b9ec1c6735b36b27e7a13dcd9b98357de7cd741 [file] [log] [blame]
#include <string>
#include <experimental/filesystem>
#include <fstream>
#include <phosphor-logging/elog-errors.hpp>
#include <phosphor-logging/log.hpp>
#include "xyz/openbmc_project/Common/error.hpp"
#include <xyz/openbmc_project/Software/Version/server.hpp>
#include "version.hpp"
#include "config.h"
#include "item_updater.hpp"
#include "activation.hpp"
#include "serialize.hpp"
namespace openpower
{
namespace software
{
namespace updater
{
// When you see server:: you know we're referencing our base class
namespace server = sdbusplus::xyz::openbmc_project::Software::server;
namespace fs = std::experimental::filesystem;
using namespace sdbusplus::xyz::openbmc_project::Common::Error;
using namespace phosphor::logging;
constexpr auto squashFSImage = "pnor.xz.squashfs";
constexpr auto CHASSIS_STATE_PATH = "/xyz/openbmc_project/state/chassis0";
constexpr auto CHASSIS_STATE_OBJ = "xyz.openbmc_project.State.Chassis";
constexpr auto CHASSIS_STATE_OFF =
"xyz.openbmc_project.State.Chassis.PowerState.Off";
constexpr auto SYSTEMD_PROPERTY_INTERFACE = "org.freedesktop.DBus.Properties";
// TODO: Change paths once openbmc/openbmc#1663 is completed.
constexpr auto MBOXD_INTERFACE = "org.openbmc.mboxd";
constexpr auto MBOXD_PATH = "/org/openbmc/mboxd";
void ItemUpdater::createActivation(sdbusplus::message::message& m)
{
using SVersion = server::Version;
using VersionPurpose = SVersion::VersionPurpose;
namespace msg = sdbusplus::message;
namespace variant_ns = msg::variant_ns;
sdbusplus::message::object_path objPath;
std::map<std::string,
std::map<std::string, msg::variant<std::string>>> interfaces;
m.read(objPath, interfaces);
std::string path(std::move(objPath));
std::string filePath;
auto purpose = VersionPurpose::Unknown;
std::string version;
for (const auto& intf : interfaces)
{
if (intf.first == VERSION_IFACE)
{
for (const auto& property : intf.second)
{
if (property.first == "Purpose")
{
// Only process the Host and System images
auto value = SVersion::convertVersionPurposeFromString(
variant_ns::get<std::string>(property.second));
if (value == VersionPurpose::Host ||
value == VersionPurpose::System)
{
purpose = value;
}
}
else if (property.first == "Version")
{
version = variant_ns::get<std::string>(property.second);
}
}
}
else if (intf.first == FILEPATH_IFACE)
{
for (const auto& property : intf.second)
{
if (property.first == "Path")
{
filePath = variant_ns::get<std::string>(property.second);
}
}
}
}
if ((filePath.empty()) || (purpose == VersionPurpose::Unknown))
{
return;
}
// Version id is the last item in the path
auto pos = path.rfind("/");
if (pos == std::string::npos)
{
log<level::ERR>("No version id found in object path",
entry("OBJPATH=%s", path));
return;
}
auto versionId = path.substr(pos + 1);
if (activations.find(versionId) == activations.end())
{
// Determine the Activation state by processing the given image dir.
auto activationState = server::Activation::Activations::Invalid;
AssociationList associations = {};
if (ItemUpdater::validateSquashFSImage(filePath) == 0)
{
activationState = server::Activation::Activations::Ready;
// Create an association to the host inventory item
associations.emplace_back(std::make_tuple(
ACTIVATION_FWD_ASSOCIATION,
ACTIVATION_REV_ASSOCIATION,
HOST_INVENTORY_PATH));
}
fs::path manifestPath(filePath);
manifestPath /= MANIFEST_FILE;
std::string extendedVersion = (Version::getValue(manifestPath.string(),
std::map<std::string, std::string>
{{"extended_version", ""}})).begin()->second;
activations.insert(std::make_pair(
versionId,
std::make_unique<Activation>(
bus,
path,
*this,
versionId,
extendedVersion,
activationState,
associations)));
versions.insert(std::make_pair(
versionId,
std::make_unique<Version>(
bus,
path,
version,
purpose,
filePath)));
}
return;
}
void ItemUpdater::processPNORImage()
{
// Read pnor.toc from folders under /media/
// to get Active Software Versions.
for (const auto& iter : fs::directory_iterator(MEDIA_DIR))
{
auto activationState = server::Activation::Activations::Active;
static const auto PNOR_RO_PREFIX_LEN = strlen(PNOR_RO_PREFIX);
static const auto PNOR_RW_PREFIX_LEN = strlen(PNOR_RW_PREFIX);
// Check if the PNOR_RO_PREFIX is the prefix of the iter.path
if (0 == iter.path().native().compare(0, PNOR_RO_PREFIX_LEN,
PNOR_RO_PREFIX))
{
// The versionId is extracted from the path
// for example /media/pnor-ro-2a1022fe.
auto id = iter.path().native().substr(PNOR_RO_PREFIX_LEN);
auto pnorTOC = iter.path() / PNOR_TOC_FILE;
if (!fs::is_regular_file(pnorTOC))
{
log<level::ERR>("Failed to read pnorTOC.",
entry("FILENAME=%s", pnorTOC.string()));
ItemUpdater::erase(id);
continue;
}
auto keyValues =
Version::getValue(pnorTOC,
{{ "version", "" },
{ "extended_version", "" } });
auto& version = keyValues.at("version");
if (version.empty())
{
log<level::ERR>("Failed to read version from pnorTOC",
entry("FILENAME=%s", pnorTOC.string()));
activationState = server::Activation::Activations::Invalid;
}
auto& extendedVersion = keyValues.at("extended_version");
if (extendedVersion.empty())
{
log<level::ERR>("Failed to read extendedVersion from pnorTOC",
entry("FILENAME=%s", pnorTOC.string()));
activationState = server::Activation::Activations::Invalid;
}
auto purpose = server::Version::VersionPurpose::Host;
auto path = fs::path(SOFTWARE_OBJPATH) / id;
AssociationList associations = {};
if (activationState == server::Activation::Activations::Active)
{
// Create an association to the host inventory item
associations.emplace_back(std::make_tuple(
ACTIVATION_FWD_ASSOCIATION,
ACTIVATION_REV_ASSOCIATION,
HOST_INVENTORY_PATH));
// Create an active association since this image is active
createActiveAssociation(path);
}
// Create Activation instance for this version.
activations.insert(std::make_pair(
id,
std::make_unique<Activation>(
bus,
path,
*this,
id,
extendedVersion,
activationState,
associations)));
// If Active, create RedundancyPriority instance for this version.
if (activationState == server::Activation::Activations::Active)
{
uint8_t priority = std::numeric_limits<uint8_t>::max();
if (!restoreFromFile(id, priority))
{
log<level::ERR>("Unable to restore priority from file.",
entry("VERSIONID=%s", id));
}
activations.find(id)->second->redundancyPriority =
std::make_unique<RedundancyPriority>(
bus,
path,
*(activations.find(id)->second),
priority);
}
// Create Version instance for this version.
versions.insert(std::make_pair(
id,
std::make_unique<Version>(
bus,
path,
version,
purpose,
"")));
}
else if (0 == iter.path().native().compare(0, PNOR_RW_PREFIX_LEN,
PNOR_RW_PREFIX))
{
auto id = iter.path().native().substr(PNOR_RW_PREFIX_LEN);
auto roDir = PNOR_RO_PREFIX + id;
if (!fs::is_directory(roDir))
{
log<level::ERR>("No corresponding read-only volume found.",
entry("DIRNAME=%s", roDir));
ItemUpdater::erase(id);
}
}
}
// Look at the RO symlink to determine if there is a functional image
auto id = determineId(PNOR_RO_ACTIVE_PATH);
if (!id.empty())
{
updateFunctionalAssociation(std::string{SOFTWARE_OBJPATH} + '/' + id);
}
return;
}
int ItemUpdater::validateSquashFSImage(const std::string& filePath)
{
auto file = fs::path(filePath) / squashFSImage;
if (fs::is_regular_file(file))
{
return 0;
}
else
{
log<level::ERR>("Failed to find the SquashFS image.");
return -1;
}
}
void ItemUpdater::removeReadOnlyPartition(std::string versionId)
{
auto serviceFile = "obmc-flash-bios-ubiumount-ro@" + versionId +
".service";
// Remove the read-only partitions.
auto method = bus.new_method_call(
SYSTEMD_BUSNAME,
SYSTEMD_PATH,
SYSTEMD_INTERFACE,
"StartUnit");
method.append(serviceFile, "replace");
bus.call_noreply(method);
}
void ItemUpdater::removeReadWritePartition(std::string versionId)
{
auto serviceFile = "obmc-flash-bios-ubiumount-rw@" + versionId +
".service";
// Remove the read-write partitions.
auto method = bus.new_method_call(
SYSTEMD_BUSNAME,
SYSTEMD_PATH,
SYSTEMD_INTERFACE,
"StartUnit");
method.append(serviceFile, "replace");
bus.call_noreply(method);
}
void ItemUpdater::reset()
{
for (const auto& it : activations)
{
auto serviceFile = "obmc-flash-bios-ubiclear@pnor-rw-" + it.first +
".service";
// Clear the read-write partitions.
auto method = bus.new_method_call(
SYSTEMD_BUSNAME,
SYSTEMD_PATH,
SYSTEMD_INTERFACE,
"StartUnit");
method.append(serviceFile, "replace");
auto reply = bus.call(method);
if (reply.is_method_error())
{
log<level::ERR>("Failed to clear read-write partitions",
entry("SERVICE_FILE=%s", serviceFile));
elog<InternalFailure>();
}
removeFile(it.first);
}
static constexpr auto serviceFile =
"obmc-flash-bios-ubiclear@pnor-prsv.service";
// Clear the preserved partition.
auto method = bus.new_method_call(
SYSTEMD_BUSNAME,
SYSTEMD_PATH,
SYSTEMD_INTERFACE,
"StartUnit");
method.append(serviceFile, "replace");
auto reply = bus.call(method);
if (reply.is_method_error())
{
log<level::ERR>("Failed to clear preserved partition",
entry("SERVICE_FILE=%s", serviceFile));
elog<InternalFailure>();
}
return;
}
bool ItemUpdater::isVersionFunctional(std::string versionId)
{
if (!fs::exists(PNOR_RO_ACTIVE_PATH))
{
return false;
}
fs::path activeRO = fs::read_symlink(PNOR_RO_ACTIVE_PATH);
if (!fs::is_directory(activeRO))
{
return false;
}
if (activeRO.string().find(versionId) == std::string::npos)
{
return false;
}
// active PNOR is the version we're checking
return true;
}
bool ItemUpdater::isChassisOn()
{
auto mapperCall = bus.new_method_call(
MAPPER_BUSNAME,
MAPPER_PATH,
MAPPER_INTERFACE,
"GetObject");
mapperCall.append(CHASSIS_STATE_PATH,
std::vector<std::string>({CHASSIS_STATE_OBJ}));
auto mapperResponseMsg = bus.call(mapperCall);
if (mapperResponseMsg.is_method_error())
{
log<level::ERR>("Error in Mapper call");
elog<InternalFailure>();
}
using MapperResponseType = std::map<std::string, std::vector<std::string>>;
MapperResponseType mapperResponse;
mapperResponseMsg.read(mapperResponse);
if (mapperResponse.empty())
{
log<level::ERR>("Invalid Response from mapper");
elog<InternalFailure>();
}
auto method = bus.new_method_call((mapperResponse.begin()->first).c_str(),
CHASSIS_STATE_PATH,
SYSTEMD_PROPERTY_INTERFACE,
"Get");
method.append(CHASSIS_STATE_OBJ, "CurrentPowerState");
auto response = bus.call(method);
if (response.is_method_error())
{
log<level::ERR>("Error in fetching current Chassis State",
entry("MAPPERRESPONSE=%s",
(mapperResponse.begin()->first).c_str()));
elog<InternalFailure>();
}
sdbusplus::message::variant<std::string> currentChassisState;
response.read(currentChassisState);
auto strParam =
sdbusplus::message::variant_ns::get<std::string>(currentChassisState);
return (strParam != CHASSIS_STATE_OFF);
}
void ItemUpdater::freePriority(uint8_t value, const std::string& versionId)
{
//TODO openbmc/openbmc#1896 Improve the performance of this function
for (const auto& intf : activations)
{
if (intf.second->redundancyPriority)
{
if (intf.second->redundancyPriority.get()->priority() == value &&
intf.second->versionId != versionId)
{
intf.second->redundancyPriority.get()->priority(value + 1);
}
}
}
}
bool ItemUpdater::isLowestPriority(uint8_t value)
{
for (const auto& intf : activations)
{
if (intf.second->redundancyPriority)
{
if (intf.second->redundancyPriority.get()->priority() < value)
{
return false;
}
}
}
return true;
}
void ItemUpdater::erase(std::string entryId)
{
if (isVersionFunctional(entryId) && isChassisOn()) {
log<level::ERR>(("Error: Version " + entryId + \
" is currently active and running on the host." \
" Unable to remove.").c_str());
return;
}
// Remove priority persistence file
removeFile(entryId);
// Removing read-only and read-write partitions
removeReadWritePartition(entryId);
removeReadOnlyPartition(entryId);
// Removing entry in versions map
auto it = versions.find(entryId);
if (it == versions.end())
{
log<level::ERR>(("Error: Failed to find version " + entryId + \
" in item updater versions map." \
" Unable to remove.").c_str());
return;
}
versions.erase(entryId);
// Removing entry in activations map
auto ita = activations.find(entryId);
if (ita == activations.end())
{
log<level::ERR>(("Error: Failed to find version " + entryId + \
" in item updater activations map." \
" Unable to remove.").c_str());
return;
}
activations.erase(entryId);
}
void ItemUpdater::deleteAll()
{
std::vector<std::string> deletableActivations;
for (const auto& activationIt : activations)
{
if (!isVersionFunctional(activationIt.first))
{
deletableActivations.push_back(activationIt.first);
}
}
for (const auto& deletableIt : deletableActivations)
{
ItemUpdater::erase(deletableIt);
}
// Remove any remaining pnor-ro- or pnor-rw- volumes that do not match
// the current version.
auto method = bus.new_method_call(
SYSTEMD_BUSNAME,
SYSTEMD_PATH,
SYSTEMD_INTERFACE,
"StartUnit");
method.append("obmc-flash-bios-cleanup.service", "replace");
bus.call_noreply(method);
}
// TODO: openbmc/openbmc#1402 Monitor flash usage
void ItemUpdater::freeSpace()
{
std::size_t count = 0;
decltype(activations.begin()->second->redundancyPriority.get()->priority())
highestPriority = 0;
decltype(activations.begin()->second->versionId) highestPriorityVersion;
for (const auto& iter : activations)
{
if (iter.second.get()->activation() == server::Activation::Activations::Active)
{
count++;
if (isVersionFunctional(iter.second->versionId))
{
continue;
}
if (iter.second->redundancyPriority.get()->priority() >= highestPriority)
{
highestPriority = iter.second->redundancyPriority.get()->priority();
highestPriorityVersion = iter.second->versionId;
}
}
}
// Remove the pnor version with highest priority since the PNOR
// can't hold more than 2 versions.
if (count >= ACTIVE_PNOR_MAX_ALLOWED)
{
erase(highestPriorityVersion);
}
}
void ItemUpdater::createActiveAssociation(const std::string& path)
{
assocs.emplace_back(std::make_tuple(ACTIVE_FWD_ASSOCIATION,
ACTIVE_REV_ASSOCIATION,
path));
associations(assocs);
}
void ItemUpdater::updateFunctionalAssociation(const std::string& path)
{
// remove all functional associations
for (auto iter = assocs.begin(); iter != assocs.end();)
{
if ((std::get<0>(*iter)).compare(FUNCTIONAL_FWD_ASSOCIATION) == 0)
{
iter = assocs.erase(iter);
}
else
{
++iter;
}
}
assocs.emplace_back(std::make_tuple(FUNCTIONAL_FWD_ASSOCIATION,
FUNCTIONAL_REV_ASSOCIATION,
path));
associations(assocs);
}
void ItemUpdater::removeActiveAssociation(const std::string& path)
{
for (auto iter = assocs.begin(); iter != assocs.end();)
{
if ((std::get<0>(*iter)).compare(ACTIVE_FWD_ASSOCIATION) == 0 &&
(std::get<2>(*iter)).compare(path) == 0)
{
iter = assocs.erase(iter);
associations(assocs);
}
else
{
++iter;
}
}
}
std::string ItemUpdater::determineId(const std::string& symlinkPath)
{
if (!fs::exists(symlinkPath))
{
return {};
}
auto target = fs::canonical(symlinkPath).string();
// check to make sure the target really exists
if (!fs::is_regular_file(target + "/" + PNOR_TOC_FILE))
{
return {};
}
// Get the image <id> from the symlink target
// for example /media/ro-2a1022fe
static const auto PNOR_RO_PREFIX_LEN = strlen(PNOR_RO_PREFIX);
return target.substr(PNOR_RO_PREFIX_LEN);
}
void GardReset::reset()
{
// The GARD partition is currently misspelled "GUARD." This file path will
// need to be updated in the future.
auto path = fs::path(PNOR_PRSV_ACTIVE_PATH);
path /= "GUARD";
std::vector<uint8_t> mboxdArgs;
auto dbusCall = bus.new_method_call(
MBOXD_INTERFACE,
MBOXD_PATH,
MBOXD_INTERFACE,
"cmd");
// Suspend mboxd - no args required.
dbusCall.append(static_cast<uint8_t>(3), mboxdArgs);
auto responseMsg = bus.call(dbusCall);
if (responseMsg.is_method_error())
{
log<level::ERR>("Error in mboxd suspend call");
elog<InternalFailure>();
}
if (fs::is_regular_file(path))
{
fs::remove(path);
}
dbusCall = bus.new_method_call(
MBOXD_INTERFACE,
MBOXD_PATH,
MBOXD_INTERFACE,
"cmd");
// Resume mboxd with arg 1, indicating that the flash is modified.
mboxdArgs.push_back(1);
dbusCall.append(static_cast<uint8_t>(4), mboxdArgs);
responseMsg = bus.call(dbusCall);
if (responseMsg.is_method_error())
{
log<level::ERR>("Error in mboxd resume call");
elog<InternalFailure>();
}
}
} // namespace updater
} // namespace software
} // namespace openpower