blob: a9c87873fb993e2883b6c12bfbe3cbde6213f012 [file] [log] [blame]
#include "fru.hpp"
#include "libpldm/utils.h"
#include "common/utils.hpp"
#include <systemd/sd-journal.h>
#include <sdbusplus/bus.hpp>
#include <iostream>
#include <set>
namespace pldm
{
namespace responder
{
FruImpl::FruImpl(const std::string& configPath, pldm_pdr* pdrRepo,
pldm_entity_association_tree* entityTree) :
pdrRepo(pdrRepo),
entityTree(entityTree)
{
fru_parser::FruParser handle(configPath);
fru_parser::DBusLookupInfo dbusInfo;
// Read the all the inventory D-Bus objects
auto& bus = pldm::utils::DBusHandler::getBus();
dbus::ObjectValueTree objects;
try
{
dbusInfo = handle.inventoryLookup();
auto method = bus.new_method_call(
std::get<0>(dbusInfo).c_str(), std::get<1>(dbusInfo).c_str(),
"org.freedesktop.DBus.ObjectManager", "GetManagedObjects");
auto reply = bus.call(method);
reply.read(objects);
}
catch (const std::exception& e)
{
std::cerr << "Look up of inventory objects failed and PLDM FRU table "
"creation failed";
return;
}
auto itemIntfsLookup = std::get<2>(dbusInfo);
for (const auto& object : objects)
{
const auto& interfaces = object.second;
for (const auto& interface : interfaces)
{
if (itemIntfsLookup.find(interface.first) != itemIntfsLookup.end())
{
// An exception will be thrown by getRecordInfo, if the item
// D-Bus interface name specified in FRU_Master.json does
// not have corresponding config jsons
try
{
pldm_entity entity{};
entity.entity_type = handle.getEntityType(interface.first);
pldm_entity_node* parent = nullptr;
auto parentObj = pldm::utils::findParent(object.first.str);
// To add a FRU to the entity association tree, we need to
// determine if the FRU has a parent (D-Bus object). For eg
// /system/backplane's parent is /system. /system has no
// parent. Some D-Bus pathnames might just be namespaces
// (not D-Bus objects), so we need to iterate upwards until
// a parent is found, or we reach the root ("/").
// Parents are always added first before children in the
// entity association tree. We're relying on the fact that
// the std::map containing object paths from the
// GetManagedObjects call will have a sorted pathname list.
do
{
auto iter = objToEntityNode.find(parentObj);
if (iter != objToEntityNode.end())
{
parent = iter->second;
break;
}
parentObj = pldm::utils::findParent(parentObj);
} while (parentObj != "/");
auto node = pldm_entity_association_tree_add(
entityTree, &entity, parent,
PLDM_ENTITY_ASSOCIAION_PHYSICAL);
objToEntityNode[object.first.str] = node;
auto recordInfos = handle.getRecordInfo(interface.first);
populateRecords(interfaces, recordInfos, entity);
break;
}
catch (const std::exception& e)
{
std::cout << "Config JSONs missing for the item "
"interface type, interface = "
<< interface.first << "\n";
break;
}
}
}
}
pldm_entity_association_pdr_add(entityTree, pdrRepo, false);
if (table.size())
{
padBytes = utils::getNumPadBytes(table.size());
table.resize(table.size() + padBytes, 0);
// Calculate the checksum
checksum = crc32(table.data(), table.size());
}
}
void FruImpl::populateRecords(
const pldm::responder::dbus::InterfaceMap& interfaces,
const fru_parser::FruRecordInfos& recordInfos, const pldm_entity& entity)
{
// recordSetIdentifier for the FRU will be set when the first record gets
// added for the FRU
uint16_t recordSetIdentifier = 0;
auto numRecsCount = numRecs;
for (auto const& [recType, encType, fieldInfos] : recordInfos)
{
std::vector<uint8_t> tlvs;
uint8_t numFRUFields = 0;
for (auto const& [intf, prop, propType, fieldTypeNum] : fieldInfos)
{
try
{
auto propValue = interfaces.at(intf).at(prop);
if (propType == "bytearray")
{
auto byteArray = std::get<std::vector<uint8_t>>(propValue);
if (!byteArray.size())
{
continue;
}
numFRUFields++;
tlvs.emplace_back(fieldTypeNum);
tlvs.emplace_back(byteArray.size());
std::move(std::begin(byteArray), std::end(byteArray),
std::back_inserter(tlvs));
}
else if (propType == "string")
{
auto str = std::get<std::string>(propValue);
if (!str.size())
{
continue;
}
numFRUFields++;
tlvs.emplace_back(fieldTypeNum);
tlvs.emplace_back(str.size());
std::move(std::begin(str), std::end(str),
std::back_inserter(tlvs));
}
}
catch (const std::out_of_range& e)
{
continue;
}
}
if (tlvs.size())
{
if (numRecs == numRecsCount)
{
recordSetIdentifier = nextRSI();
pldm_pdr_add_fru_record_set(
pdrRepo, 0, recordSetIdentifier, entity.entity_type,
entity.entity_instance_num, entity.entity_container_id);
}
auto curSize = table.size();
table.resize(curSize + recHeaderSize + tlvs.size());
encode_fru_record(table.data(), table.size(), &curSize,
recordSetIdentifier, recType, numFRUFields,
encType, tlvs.data(), tlvs.size());
numRecs++;
}
}
}
void FruImpl::getFRUTable(Response& response)
{
auto hdrSize = response.size();
response.resize(hdrSize + table.size() + sizeof(checksum), 0);
std::copy(table.begin(), table.end(), response.begin() + hdrSize);
// Copy the checksum to response data
auto iter = response.begin() + hdrSize + table.size();
std::copy_n(reinterpret_cast<const uint8_t*>(&checksum), sizeof(checksum),
iter);
}
namespace fru
{
Response Handler::getFRURecordTableMetadata(const pldm_msg* request,
size_t /*payloadLength*/)
{
constexpr uint8_t major = 0x01;
constexpr uint8_t minor = 0x00;
constexpr uint32_t maxSize = 0xFFFFFFFF;
Response response(sizeof(pldm_msg_hdr) +
PLDM_GET_FRU_RECORD_TABLE_METADATA_RESP_BYTES,
0);
auto responsePtr = reinterpret_cast<pldm_msg*>(response.data());
auto rc = encode_get_fru_record_table_metadata_resp(
request->hdr.instance_id, PLDM_SUCCESS, major, minor, maxSize,
impl.size(), impl.numRSI(), impl.numRecords(), impl.checkSum(),
responsePtr);
if (rc != PLDM_SUCCESS)
{
return ccOnlyResponse(request, rc);
}
return response;
}
Response Handler::getFRURecordTable(const pldm_msg* request,
size_t payloadLength)
{
if (payloadLength != PLDM_GET_FRU_RECORD_TABLE_REQ_BYTES)
{
return ccOnlyResponse(request, PLDM_ERROR_INVALID_LENGTH);
}
Response response(
sizeof(pldm_msg_hdr) + PLDM_GET_FRU_RECORD_TABLE_MIN_RESP_BYTES, 0);
auto responsePtr = reinterpret_cast<pldm_msg*>(response.data());
auto rc =
encode_get_fru_record_table_resp(request->hdr.instance_id, PLDM_SUCCESS,
0, PLDM_START_AND_END, responsePtr);
if (rc != PLDM_SUCCESS)
{
return ccOnlyResponse(request, rc);
}
impl.getFRUTable(response);
return response;
}
} // namespace fru
} // namespace responder
} // namespace pldm