| #include "bios.hpp" |
| |
| #include "common/utils.hpp" |
| |
| #include <time.h> |
| |
| #include <array> |
| #include <chrono> |
| #include <ctime> |
| #include <iostream> |
| #include <stdexcept> |
| #include <string> |
| #include <variant> |
| #include <vector> |
| |
| using namespace pldm::utils; |
| |
| namespace pldm |
| { |
| namespace responder |
| { |
| namespace utils |
| { |
| void epochToBCDTime(uint64_t timeSec, uint8_t& seconds, uint8_t& minutes, |
| uint8_t& hours, uint8_t& day, uint8_t& month, |
| uint16_t& year) |
| { |
| auto t = time_t(timeSec); |
| auto time = localtime(&t); |
| |
| seconds = pldm::utils::decimalToBcd(time->tm_sec); |
| minutes = pldm::utils::decimalToBcd(time->tm_min); |
| hours = pldm::utils::decimalToBcd(time->tm_hour); |
| day = pldm::utils::decimalToBcd(time->tm_mday); |
| month = pldm::utils::decimalToBcd(time->tm_mon + |
| 1); // The number of months in the range |
| // 0 to 11.PLDM expects range 1 to 12 |
| year = pldm::utils::decimalToBcd(time->tm_year + |
| 1900); // The number of years since 1900 |
| } |
| |
| std::time_t timeToEpoch(uint8_t seconds, uint8_t minutes, uint8_t hours, |
| uint8_t day, uint8_t month, uint16_t year) |
| { |
| struct std::tm stm; |
| |
| stm.tm_year = year - 1900; |
| stm.tm_mon = month - 1; |
| stm.tm_mday = day; |
| stm.tm_hour = hours; |
| stm.tm_min = minutes; |
| stm.tm_sec = seconds; |
| stm.tm_isdst = -1; |
| |
| // It will get the time in seconds since |
| // Epoch, 1970.1.1 00:00:00 +0000,UTC. |
| return timegm(&stm); |
| } |
| |
| } // namespace utils |
| |
| namespace bios |
| { |
| using EpochTimeUS = uint64_t; |
| |
| DBusHandler dbusHandler; |
| |
| Handler::Handler(int fd, uint8_t eid, dbus_api::Requester* requester, |
| pldm::requester::Handler<pldm::requester::Request>* handler) : |
| biosConfig(BIOS_JSONS_DIR, BIOS_TABLES_DIR, &dbusHandler, fd, eid, |
| requester, handler) |
| { |
| biosConfig.removeTables(); |
| biosConfig.buildTables(); |
| |
| handlers.emplace(PLDM_SET_DATE_TIME, |
| [this](const pldm_msg* request, size_t payloadLength) { |
| return this->setDateTime(request, payloadLength); |
| }); |
| handlers.emplace(PLDM_GET_DATE_TIME, |
| [this](const pldm_msg* request, size_t payloadLength) { |
| return this->getDateTime(request, payloadLength); |
| }); |
| handlers.emplace(PLDM_GET_BIOS_TABLE, |
| [this](const pldm_msg* request, size_t payloadLength) { |
| return this->getBIOSTable(request, payloadLength); |
| }); |
| handlers.emplace(PLDM_SET_BIOS_TABLE, |
| [this](const pldm_msg* request, size_t payloadLength) { |
| return this->setBIOSTable(request, payloadLength); |
| }); |
| handlers.emplace(PLDM_GET_BIOS_ATTRIBUTE_CURRENT_VALUE_BY_HANDLE, |
| [this](const pldm_msg* request, size_t payloadLength) { |
| return this->getBIOSAttributeCurrentValueByHandle( |
| request, payloadLength); |
| }); |
| handlers.emplace(PLDM_SET_BIOS_ATTRIBUTE_CURRENT_VALUE, |
| [this](const pldm_msg* request, size_t payloadLength) { |
| return this->setBIOSAttributeCurrentValue( |
| request, payloadLength); |
| }); |
| } |
| |
| Response Handler::getDateTime(const pldm_msg* request, size_t /*payloadLength*/) |
| { |
| uint8_t seconds = 0; |
| uint8_t minutes = 0; |
| uint8_t hours = 0; |
| uint8_t day = 0; |
| uint8_t month = 0; |
| uint16_t year = 0; |
| |
| constexpr auto timeInterface = "xyz.openbmc_project.Time.EpochTime"; |
| constexpr auto bmcTimePath = "/xyz/openbmc_project/time/bmc"; |
| Response response(sizeof(pldm_msg_hdr) + PLDM_GET_DATE_TIME_RESP_BYTES, 0); |
| auto responsePtr = reinterpret_cast<pldm_msg*>(response.data()); |
| EpochTimeUS timeUsec; |
| |
| try |
| { |
| timeUsec = pldm::utils::DBusHandler().getDbusProperty<EpochTimeUS>( |
| bmcTimePath, "Elapsed", timeInterface); |
| } |
| catch (const sdbusplus::exception_t& e) |
| { |
| std::cerr << "Error getting time, PATH=" << bmcTimePath |
| << " TIME INTERACE=" << timeInterface << "\n"; |
| |
| return CmdHandler::ccOnlyResponse(request, PLDM_ERROR); |
| } |
| |
| uint64_t timeSec = std::chrono::duration_cast<std::chrono::seconds>( |
| std::chrono::microseconds(timeUsec)) |
| .count(); |
| |
| pldm::responder::utils::epochToBCDTime(timeSec, seconds, minutes, hours, |
| day, month, year); |
| |
| auto rc = encode_get_date_time_resp(request->hdr.instance_id, PLDM_SUCCESS, |
| seconds, minutes, hours, day, month, |
| year, responsePtr); |
| if (rc != PLDM_SUCCESS) |
| { |
| return ccOnlyResponse(request, rc); |
| } |
| |
| return response; |
| } |
| |
| Response Handler::setDateTime(const pldm_msg* request, size_t payloadLength) |
| { |
| uint8_t seconds = 0; |
| uint8_t minutes = 0; |
| uint8_t hours = 0; |
| uint8_t day = 0; |
| uint8_t month = 0; |
| uint16_t year = 0; |
| std::time_t timeSec; |
| |
| constexpr auto timeSyncPath = "/xyz/openbmc_project/time/sync_method"; |
| constexpr auto timeSyncInterface = |
| "xyz.openbmc_project.Time.Synchronization"; |
| constexpr auto timeSyncProperty = "TimeSyncMethod"; |
| |
| // The time is correct on BMC when in NTP mode, so we do not want to |
| // try and set the time again and cause potential time drifts. |
| try |
| { |
| auto propVal = pldm::utils::DBusHandler().getDbusPropertyVariant( |
| timeSyncPath, timeSyncProperty, timeSyncInterface); |
| const auto& mode = std::get<std::string>(propVal); |
| |
| if (mode == "xyz.openbmc_project.Time.Synchronization.Method.NTP") |
| { |
| return ccOnlyResponse(request, PLDM_SUCCESS); |
| } |
| } |
| catch (const std::exception& e) |
| { |
| std::cerr << "Error getting the time sync property, PATH=" |
| << timeSyncPath << "INTERFACE=" << timeSyncInterface |
| << "PROPERTY=" << timeSyncProperty << "ERROR=" << e.what() |
| << "\n"; |
| } |
| |
| constexpr auto setTimeInterface = "xyz.openbmc_project.Time.EpochTime"; |
| constexpr auto setTimePath = "/xyz/openbmc_project/time/bmc"; |
| constexpr auto timeSetPro = "Elapsed"; |
| |
| auto rc = decode_set_date_time_req(request, payloadLength, &seconds, |
| &minutes, &hours, &day, &month, &year); |
| if (rc != PLDM_SUCCESS) |
| { |
| return ccOnlyResponse(request, rc); |
| } |
| timeSec = pldm::responder::utils::timeToEpoch(seconds, minutes, hours, day, |
| month, year); |
| uint64_t timeUsec = std::chrono::duration_cast<std::chrono::microseconds>( |
| std::chrono::seconds(timeSec)) |
| .count(); |
| PropertyValue value{timeUsec}; |
| try |
| { |
| DBusMapping dbusMapping{setTimePath, setTimeInterface, timeSetPro, |
| "uint64_t"}; |
| pldm::utils::DBusHandler().setDbusProperty(dbusMapping, value); |
| } |
| catch (const std::exception& e) |
| { |
| std::cerr << "Error Setting time,PATH=" << setTimePath |
| << "TIME INTERFACE=" << setTimeInterface |
| << "ERROR=" << e.what() << "\n"; |
| |
| return ccOnlyResponse(request, PLDM_ERROR); |
| } |
| |
| return ccOnlyResponse(request, PLDM_SUCCESS); |
| } |
| |
| Response Handler::getBIOSTable(const pldm_msg* request, size_t payloadLength) |
| { |
| uint32_t transferHandle{}; |
| uint8_t transferOpFlag{}; |
| uint8_t tableType{}; |
| |
| auto rc = decode_get_bios_table_req(request, payloadLength, &transferHandle, |
| &transferOpFlag, &tableType); |
| if (rc != PLDM_SUCCESS) |
| { |
| return ccOnlyResponse(request, rc); |
| } |
| |
| auto table = |
| biosConfig.getBIOSTable(static_cast<pldm_bios_table_types>(tableType)); |
| if (!table) |
| { |
| return ccOnlyResponse(request, PLDM_BIOS_TABLE_UNAVAILABLE); |
| } |
| |
| Response response(sizeof(pldm_msg_hdr) + |
| PLDM_GET_BIOS_TABLE_MIN_RESP_BYTES + table->size()); |
| auto responsePtr = reinterpret_cast<pldm_msg*>(response.data()); |
| |
| rc = encode_get_bios_table_resp( |
| request->hdr.instance_id, PLDM_SUCCESS, 0 /* nxtTransferHandle */, |
| PLDM_START_AND_END, table->data(), response.size(), responsePtr); |
| if (rc != PLDM_SUCCESS) |
| { |
| return ccOnlyResponse(request, rc); |
| } |
| |
| return response; |
| } |
| |
| Response Handler::setBIOSTable(const pldm_msg* request, size_t payloadLength) |
| { |
| uint32_t transferHandle{}; |
| uint8_t transferOpFlag{}; |
| uint8_t tableType{}; |
| struct variable_field field; |
| |
| auto rc = decode_set_bios_table_req(request, payloadLength, &transferHandle, |
| &transferOpFlag, &tableType, &field); |
| if (rc != PLDM_SUCCESS) |
| { |
| return ccOnlyResponse(request, rc); |
| } |
| |
| Table table(field.ptr, field.ptr + field.length); |
| rc = biosConfig.setBIOSTable(tableType, table); |
| if (rc != PLDM_SUCCESS) |
| { |
| return ccOnlyResponse(request, rc); |
| } |
| |
| Response response(sizeof(pldm_msg_hdr) + PLDM_SET_BIOS_TABLE_RESP_BYTES); |
| auto responsePtr = reinterpret_cast<pldm_msg*>(response.data()); |
| |
| rc = encode_set_bios_table_resp(request->hdr.instance_id, PLDM_SUCCESS, |
| 0 /* nxtTransferHandle */, responsePtr); |
| if (rc != PLDM_SUCCESS) |
| { |
| return ccOnlyResponse(request, rc); |
| } |
| |
| return response; |
| } |
| |
| Response Handler::getBIOSAttributeCurrentValueByHandle(const pldm_msg* request, |
| size_t payloadLength) |
| { |
| uint32_t transferHandle; |
| uint8_t transferOpFlag; |
| uint16_t attributeHandle; |
| |
| auto rc = decode_get_bios_attribute_current_value_by_handle_req( |
| request, payloadLength, &transferHandle, &transferOpFlag, |
| &attributeHandle); |
| if (rc != PLDM_SUCCESS) |
| { |
| return ccOnlyResponse(request, rc); |
| } |
| |
| auto table = biosConfig.getBIOSTable(PLDM_BIOS_ATTR_VAL_TABLE); |
| if (!table) |
| { |
| return ccOnlyResponse(request, PLDM_BIOS_TABLE_UNAVAILABLE); |
| } |
| |
| auto entry = pldm_bios_table_attr_value_find_by_handle( |
| table->data(), table->size(), attributeHandle); |
| if (entry == nullptr) |
| { |
| return ccOnlyResponse(request, PLDM_INVALID_BIOS_ATTR_HANDLE); |
| } |
| |
| auto entryLength = pldm_bios_table_attr_value_entry_length(entry); |
| Response response(sizeof(pldm_msg_hdr) + |
| PLDM_GET_BIOS_ATTR_CURR_VAL_BY_HANDLE_MIN_RESP_BYTES + |
| entryLength, |
| 0); |
| auto responsePtr = reinterpret_cast<pldm_msg*>(response.data()); |
| rc = encode_get_bios_current_value_by_handle_resp( |
| request->hdr.instance_id, PLDM_SUCCESS, 0, PLDM_START_AND_END, |
| reinterpret_cast<const uint8_t*>(entry), entryLength, responsePtr); |
| if (rc != PLDM_SUCCESS) |
| { |
| return ccOnlyResponse(request, rc); |
| } |
| |
| return response; |
| } |
| |
| Response Handler::setBIOSAttributeCurrentValue(const pldm_msg* request, |
| size_t payloadLength) |
| { |
| uint32_t transferHandle; |
| uint8_t transferOpFlag; |
| variable_field attributeField; |
| |
| auto rc = decode_set_bios_attribute_current_value_req( |
| request, payloadLength, &transferHandle, &transferOpFlag, |
| &attributeField); |
| if (rc != PLDM_SUCCESS) |
| { |
| return ccOnlyResponse(request, rc); |
| } |
| |
| rc = biosConfig.setAttrValue(attributeField.ptr, attributeField.length, |
| false); |
| |
| Response response( |
| sizeof(pldm_msg_hdr) + PLDM_SET_BIOS_ATTR_CURR_VAL_RESP_BYTES, 0); |
| auto responsePtr = reinterpret_cast<pldm_msg*>(response.data()); |
| |
| encode_set_bios_attribute_current_value_resp(request->hdr.instance_id, rc, |
| 0, responsePtr); |
| |
| return response; |
| } |
| |
| } // namespace bios |
| } // namespace responder |
| } // namespace pldm |