| #include <ipmid/api.h> |
| #include <openssl/evp.h> |
| #include <openssl/sha.h> |
| #include <sys/mman.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <unistd.h> |
| |
| #include <boost/algorithm/string.hpp> |
| #include <boost/asio.hpp> |
| #include <boost/process/child.hpp> |
| #include <boost/uuid/random_generator.hpp> |
| #include <boost/uuid/uuid_io.hpp> |
| #include <chrono> |
| #include <commandutils.hpp> |
| #include <cstdint> |
| #include <filesystem> |
| #include <fstream> |
| #include <iostream> |
| #include <ipmid/api.hpp> |
| #include <map> |
| #include <random> |
| #include <sdbusplus/bus.hpp> |
| #include <sdbusplus/bus/match.hpp> |
| #include <sdbusplus/server/object.hpp> |
| #include <sdbusplus/timer.hpp> |
| #include <sstream> |
| |
| static void register_netfn_firmware_functions() __attribute__((constructor)); |
| |
| // oem return code for firmware update control |
| constexpr ipmi_ret_t IPMI_CC_REQ_INVALID_PHASE = 0xd5; |
| constexpr ipmi_ret_t IPMI_CC_USB_ATTACH_FAIL = 0x80; |
| |
| static constexpr bool DEBUG = false; |
| |
| static constexpr char FW_UPDATE_SERVER_DBUS_NAME[] = |
| "xyz.openbmc_project.fwupdate1.server"; |
| |
| static constexpr char FW_UPDATE_SERVER_PATH[] = |
| "/xyz/openbmc_project/fwupdate1"; |
| static constexpr char FW_UPDATE_SERVER_INFO_PATH[] = |
| "/xyz/openbmc_project/fwupdate1/info"; |
| static constexpr char FW_UPDATE_ACTIVE_INFO_PATH[] = |
| "/xyz/openbmc_project/fwupdate1/info/bmc_active"; |
| static constexpr char FW_UPDATE_BACKUP_INFO_PATH[] = |
| "/xyz/openbmc_project/fwupdate1/info/bmc_backup"; |
| |
| static constexpr char FW_UPDATE_INTERFACE[] = "xyz.openbmc_project.fwupdate1"; |
| static constexpr char FW_UPDATE_INFO_INTERFACE[] = |
| "xyz.openbmc_project.fwupdate1.fwinfo"; |
| static constexpr char FW_UPDATE_SECURITY_INTERFACE[] = |
| "xyz.openbmc_project.fwupdate1.security"; |
| |
| constexpr std::size_t operator""_MB(unsigned long long v) |
| { |
| return 1024u * 1024u * v; |
| } |
| static constexpr int FIRMWARE_BUFFER_MAX_SIZE = 32_MB; |
| |
| static constexpr char FIRMWARE_BUFFER_FILE[] = "/tmp/fw-download.bin"; |
| static bool local_download_is_active(void) |
| { |
| struct stat sb; |
| if (stat(FIRMWARE_BUFFER_FILE, &sb) < 0) |
| return false; |
| return true; |
| } |
| |
| class fw_update_status_cache |
| { |
| public: |
| enum |
| { |
| FW_STATE_INIT = 0, |
| FW_STATE_IDLE, |
| FW_STATE_DOWNLOAD, |
| FW_STATE_VERIFY, |
| FW_STATE_WRITE, |
| FW_STATE_READY, |
| FW_STATE_ERROR = 0x0f, |
| FW_STATE_AC_CYCLE_REQUIRED = 0x83, |
| }; |
| fw_update_status_cache() : _bus(getSdBus()) |
| { |
| _match = std::make_shared<sdbusplus::bus::match::match>( |
| *_bus, |
| sdbusplus::bus::match::rules::propertiesChanged( |
| FW_UPDATE_SERVER_PATH, FW_UPDATE_INTERFACE), |
| [&](sdbusplus::message::message &msg) { |
| if (DEBUG) |
| std::cerr << "propertiesChanged lambda\n"; |
| std::map<std::string, ipmi::DbusVariant> props; |
| std::vector<std::string> inval; |
| std::string iface; |
| msg.read(iface, props, inval); |
| _parse_props(props); |
| }); |
| _initial_fetch(); |
| } |
| |
| uint8_t state() |
| { |
| if (DEBUG) |
| std::cerr << "fw-state: 0x" << std::hex << (int)_state << '\n'; |
| if ((_state == FW_STATE_IDLE || _state == FW_STATE_INIT) && |
| local_download_is_active()) |
| { |
| _state = FW_STATE_DOWNLOAD; |
| _percent = 0; |
| } |
| return _state; |
| } |
| uint8_t percent() |
| { |
| return _percent; |
| } |
| std::string msg() |
| { |
| return _msg; |
| } |
| #ifdef UPDATER_ENABLED |
| std::string get_software_obj_path() |
| { |
| return _software_obj_path; |
| } |
| void set_software_obj_path(std::string &obj_path) |
| { |
| _software_obj_path = obj_path; |
| _state = FW_STATE_WRITE; |
| _percent = 0; |
| _match = std::make_shared<sdbusplus::bus::match::match>( |
| *_bus, |
| sdbusplus::bus::match::rules::propertiesChanged( |
| _software_obj_path, |
| "xyz.openbmc_project.Software.ActivationProgress"), |
| [&](sdbusplus::message::message &msg) { |
| if (DEBUG) |
| std::cerr << "propertiesChanged lambda\n"; |
| std::map<std::string, ipmi::DbusVariant> props; |
| std::vector<std::string> inval; |
| std::string iface; |
| msg.read(iface, props, inval); |
| _parse_props(props); |
| }); |
| } |
| uint8_t activation_timer_timeout() |
| { |
| std::cerr << "activation_timer_timout(): increase percentage...\n"; |
| _percent = _percent + 5; |
| std::cerr << "_percent = " << std::string((char *)&_percent) << "\n"; |
| return _percent; |
| } |
| #endif |
| protected: |
| void _parse_props(std::map<std::string, ipmi::DbusVariant> &properties) |
| { |
| if (DEBUG) |
| std::cerr << "propertiesChanged (" << properties.size() |
| << " elements)"; |
| for (const auto &t : properties) |
| { |
| auto key = t.first; |
| auto value = t.second; |
| if (key == "state") |
| { |
| auto state = std::get<std::string>(value); |
| if (DEBUG) |
| std::cerr << ", state=" << state; |
| if (state == "INIT") |
| _state = FW_STATE_INIT; |
| else if (state == "IDLE") |
| _state = FW_STATE_IDLE; |
| else if (state == "DOWNLOAD") |
| _state = FW_STATE_DOWNLOAD; |
| else if (state == "VERIFY") |
| _state = FW_STATE_VERIFY; |
| else if (state == "WRITE") |
| _state = FW_STATE_WRITE; |
| else if (state == "READY") |
| _state = FW_STATE_READY; |
| else if (state == "ERROR") |
| _state = FW_STATE_ERROR; |
| else if (state == "AC_CYCLE_REQUIRED") |
| _state = FW_STATE_AC_CYCLE_REQUIRED; |
| else |
| { |
| _state = FW_STATE_ERROR; |
| _msg = "internal error"; |
| } |
| } |
| else if (key == "percent") |
| { |
| _percent = std::get<int32_t>(value); |
| if (DEBUG) |
| std::cerr << ", pct=" << (int)_percent; |
| } |
| else if (key == "msg") |
| { |
| _msg = std::get<std::string>(value); |
| if (DEBUG) |
| std::cerr << ", msg='" << _msg << '\''; |
| } |
| else if (key == "Progress") |
| { |
| _percent = std::get<uint8_t>(value); |
| ; |
| if (_percent == 100) |
| _state = FW_STATE_READY; |
| } |
| } |
| if ((_state == FW_STATE_IDLE || _state == FW_STATE_INIT) && |
| local_download_is_active()) |
| { |
| _state = FW_STATE_DOWNLOAD; |
| _percent = 0; |
| } |
| if (DEBUG) |
| std::cerr << '\n'; |
| } |
| void _initial_fetch() |
| { |
| #ifndef UPDATER_ENABLED |
| auto method = _bus->new_method_call( |
| FW_UPDATE_SERVER_DBUS_NAME, FW_UPDATE_SERVER_PATH, |
| "org.freedesktop.DBus.Properties", "GetAll"); |
| method.append(FW_UPDATE_INTERFACE); |
| if (DEBUG) |
| std::cerr << "fetch fw status via dbus...\n"; |
| try |
| { |
| auto reply = _bus->call(method); |
| |
| std::map<std::string, ipmi::DbusVariant> properties; |
| reply.read(properties); |
| _parse_props(properties); |
| } |
| catch (sdbusplus::exception::SdBusError &e) |
| { |
| std::cerr << "Failed in _initial_fetch(): SDBus Error: " << e.what() |
| << "\n"; |
| return; |
| } |
| #endif |
| } |
| |
| std::shared_ptr<sdbusplus::asio::connection> _bus; |
| std::shared_ptr<sdbusplus::bus::match::match> _match; |
| uint8_t _state = 0; |
| uint8_t _percent = 0; |
| std::string _msg; |
| |
| private: |
| std::string _software_obj_path; |
| }; |
| |
| static fw_update_status_cache fw_update_status; |
| |
| static std::chrono::steady_clock::time_point fw_random_number_timestamp; |
| static constexpr int FW_RANDOM_NUMBER_LENGTH = 8; |
| static constexpr auto FW_RANDOM_NUMBER_TTL = std::chrono::seconds(30); |
| static uint8_t fw_random_number[FW_RANDOM_NUMBER_LENGTH]; |
| |
| static ipmi_ret_t ipmi_firmware_get_fw_random_number( |
| ipmi_netfn_t netfn, ipmi_cmd_t cmd, ipmi_request_t request, |
| ipmi_response_t response, ipmi_data_len_t data_len, ipmi_context_t context) |
| { |
| std::random_device rd; |
| std::default_random_engine gen(rd()); |
| std::uniform_int_distribution<> dist{0, 255}; |
| |
| if (*data_len != 0) |
| { |
| *data_len = 0; |
| return IPMI_CC_REQ_DATA_LEN_INVALID; |
| } |
| |
| fw_random_number_timestamp = std::chrono::steady_clock::now(); |
| |
| uint8_t *msg_reply = static_cast<uint8_t *>(response); |
| for (int i = 0; i < FW_RANDOM_NUMBER_LENGTH; i++) |
| fw_random_number[i] = msg_reply[i] = dist(gen); |
| |
| if (DEBUG) |
| std::cerr << "FW Rand Num: 0x" << std::hex << (int)msg_reply[0] << " 0x" |
| << (int)msg_reply[1] << " 0x" << (int)msg_reply[2] << " 0x" |
| << (int)msg_reply[3] << " 0x" << (int)msg_reply[4] << " 0x" |
| << (int)msg_reply[5] << " 0x" << (int)msg_reply[6] << " 0x" |
| << (int)msg_reply[7] << '\n'; |
| |
| *data_len = FW_RANDOM_NUMBER_LENGTH; |
| |
| return IPMI_CC_OK; |
| } |
| |
| static ipmi_ret_t ipmi_firmware_enter_fw_transfer_mode( |
| ipmi_netfn_t netfn, ipmi_cmd_t cmd, ipmi_request_t request, |
| ipmi_response_t response, ipmi_data_len_t data_len, ipmi_context_t context) |
| { |
| if (DEBUG) |
| std::cerr << "Enter FW transfer mode requested, data_len = " |
| << *data_len << '\n'; |
| |
| if (*data_len != FW_RANDOM_NUMBER_LENGTH) |
| { |
| *data_len = 0; |
| return IPMI_CC_REQ_DATA_LEN_INVALID; |
| } |
| *data_len = 0; |
| |
| auto rq_time = std::chrono::steady_clock::now(); |
| if (DEBUG) |
| std::cerr << "now - fwts = " |
| << std::chrono::duration_cast<std::chrono::microseconds>( |
| rq_time - fw_random_number_timestamp) |
| .count() |
| << " us\n"; |
| if (std::chrono::duration_cast<std::chrono::microseconds>( |
| rq_time - fw_random_number_timestamp) |
| .count() > std::chrono::duration_cast<std::chrono::microseconds>( |
| FW_RANDOM_NUMBER_TTL) |
| .count()) |
| { |
| if (DEBUG) |
| std::cerr << "key timeout\n"; |
| return IPMI_CC_PARM_OUT_OF_RANGE; |
| } |
| |
| uint8_t *msg_request = static_cast<uint8_t *>(request); |
| for (int i = 0; i < FW_RANDOM_NUMBER_LENGTH; i++) |
| { |
| if (fw_random_number[i] != msg_request[i]) |
| { |
| if (DEBUG) |
| std::cerr << "key error" << (int)fw_random_number[i] |
| << "!=" << (int)msg_request[i] << "\n"; |
| return IPMI_CC_INVALID_FIELD_REQUEST; |
| } |
| } |
| |
| if (fw_update_status.state() != fw_update_status_cache::FW_STATE_IDLE |
| // TODO: Allowing FW_STATE_INIT here to let image activation available |
| // without being in FW_STATE_IDLE, need to fix/adjust the state machine |
| // to match xyz.openbmc_project.Software.BMC.Updater service activation |
| // mechanism at finer grain |
| && fw_update_status.state() != fw_update_status_cache::FW_STATE_INIT) |
| { |
| if (DEBUG) |
| std::cerr << "not in INIT or IDLE\n"; |
| return IPMI_CC_INVALID_FIELD_REQUEST; |
| } |
| // FIXME? c++ doesn't off an option for exclusive file creation |
| FILE *fp = fopen(FIRMWARE_BUFFER_FILE, "wx"); |
| if (!fp) |
| { |
| if (DEBUG) |
| std::cerr << "failed to create buffer file\n"; |
| return IPMI_CC_INVALID_FIELD_REQUEST; |
| } |
| fclose(fp); |
| |
| return IPMI_CC_OK; |
| } |
| |
| static ipmi_ret_t ipmi_firmware_exit_fw_update_mode( |
| ipmi_netfn_t netfn, ipmi_cmd_t cmd, ipmi_request_t request, |
| ipmi_response_t response, ipmi_data_len_t data_len, ipmi_context_t context) |
| { |
| if (DEBUG) |
| std::cerr << "Exit FW update mode\n"; |
| *data_len = 0; |
| |
| ipmi_ret_t rc = IPMI_CC_OK; |
| switch (fw_update_status.state()) |
| { |
| case fw_update_status_cache::FW_STATE_INIT: |
| case fw_update_status_cache::FW_STATE_IDLE: |
| rc = IPMI_CC_INVALID_FIELD_REQUEST; |
| break; |
| case fw_update_status_cache::FW_STATE_DOWNLOAD: |
| unlink(FIRMWARE_BUFFER_FILE); |
| case fw_update_status_cache::FW_STATE_VERIFY: |
| break; |
| case fw_update_status_cache::FW_STATE_WRITE: |
| rc = IPMI_CC_INVALID_FIELD_REQUEST; |
| break; |
| case fw_update_status_cache::FW_STATE_READY: |
| case fw_update_status_cache::FW_STATE_ERROR: |
| unlink(FIRMWARE_BUFFER_FILE); |
| break; |
| case fw_update_status_cache::FW_STATE_AC_CYCLE_REQUIRED: |
| rc = IPMI_CC_INVALID_FIELD_REQUEST; |
| break; |
| } |
| if (rc == IPMI_CC_OK) |
| { |
| std::shared_ptr<sdbusplus::asio::connection> bus = getSdBus(); |
| // attempt to reset the state machine -- this may fail |
| auto method = bus->new_method_call( |
| FW_UPDATE_SERVER_DBUS_NAME, FW_UPDATE_SERVER_PATH, |
| "org.freedesktop.DBus.Properties", "Abort"); |
| try |
| { |
| auto reply = bus->call(method); |
| |
| ipmi::DbusVariant retval; |
| reply.read(retval); |
| if (std::get<int>(retval) != 0) |
| rc = IPMI_CC_INVALID_FIELD_REQUEST; |
| } |
| catch (sdbusplus::exception::SdBusError &e) |
| { |
| std::cerr << "SDBus Error: " << e.what() << "\n"; |
| return IPMI_CC_UNSPECIFIED_ERROR; |
| } |
| } |
| |
| return rc; |
| } |
| |
| static void post_transfer_complete_handler( |
| std::unique_ptr<sdbusplus::bus::match::match> &fw_update_matcher); |
| static bool request_start_firmware_update(const std::string &uri) |
| { |
| if (DEBUG) |
| std::cerr << "request start firmware update()\n"; |
| |
| #ifdef UPDATER_ENABLED |
| // fwupdate URIs start with file:// or usb:// or tftp:// etc. By the time |
| // the code gets to this point, the file should be transferred start the |
| // request (creating a new file in /tmp/images causes the update manager to |
| // check if it is ready for activation) |
| static std::unique_ptr<sdbusplus::bus::match::match> fw_update_matcher; |
| post_transfer_complete_handler(fw_update_matcher); |
| std::filesystem::rename( |
| uri, "/tmp/images/" + |
| boost::uuids::to_string(boost::uuids::random_generator()())); |
| #else |
| std::shared_ptr<sdbusplus::asio::connection> bus = getSdBus(); |
| auto method = |
| bus->new_method_call(FW_UPDATE_SERVER_DBUS_NAME, FW_UPDATE_SERVER_PATH, |
| FW_UPDATE_INTERFACE, "start"); |
| if (DEBUG) |
| std::cerr << "fwupdate1.start: " << uri << '\n'; |
| method.append(uri); |
| try |
| { |
| auto reply = bus->call(method); |
| |
| uint32_t retval; |
| reply.read(retval); |
| if (retval != 0) |
| { |
| if (DEBUG) |
| std::cerr << "method returned non-zero: " << retval << "\n"; |
| return false; |
| } |
| return true; |
| } |
| catch (sdbusplus::exception::SdBusError &e) |
| { |
| std::cerr << "SDBus Error: " << e.what(); |
| return false; |
| } |
| #endif |
| return true; |
| } |
| |
| static bool request_abort_firmware_update() |
| { |
| std::shared_ptr<sdbusplus::asio::connection> bus = getSdBus(); |
| auto method = |
| bus->new_method_call(FW_UPDATE_SERVER_DBUS_NAME, FW_UPDATE_SERVER_PATH, |
| FW_UPDATE_INTERFACE, "abort"); |
| try |
| { |
| auto reply = bus->call(method); |
| |
| unlink(FIRMWARE_BUFFER_FILE); |
| uint32_t retval; |
| reply.read(retval); |
| if (retval != 0) |
| return false; |
| } |
| catch (sdbusplus::exception::SdBusError &e) |
| { |
| std::cerr << "SDBus Error: " << e.what() << "\n"; |
| unlink(FIRMWARE_BUFFER_FILE); |
| return false; |
| } |
| return true; |
| } |
| |
| class transfer_hash_check |
| { |
| public: |
| enum hash_check |
| { |
| CHECK_NOT_REQUESTED = 0, |
| CHECK_REQUESTED, |
| CHECK_PASSED_SHA2, |
| CHECK_RESVD1, |
| CHECK_FAILED_SHA2 = 0xe2, |
| CHECK_RESVD2 = 0xe3, |
| }; |
| |
| protected: |
| EVP_MD_CTX *_ctx; |
| std::vector<uint8_t> _expected; |
| enum hash_check _check; |
| bool _started; |
| |
| public: |
| transfer_hash_check() : _check(CHECK_NOT_REQUESTED), _started(false) |
| { |
| } |
| ~transfer_hash_check() |
| { |
| if (_ctx) |
| { |
| EVP_MD_CTX_destroy(_ctx); |
| _ctx = NULL; |
| } |
| } |
| void init(const std::vector<uint8_t> &expected) |
| { |
| _expected = expected; |
| _check = CHECK_REQUESTED; |
| _ctx = EVP_MD_CTX_create(); |
| EVP_DigestInit(_ctx, EVP_sha256()); |
| } |
| void hash(const std::vector<uint8_t> &data) |
| { |
| if (!_started) |
| _started = true; |
| EVP_DigestUpdate(_ctx, data.data(), data.size()); |
| } |
| void clear() |
| { |
| // if not started, nothing to clear |
| if (_started) |
| { |
| if (_ctx) |
| EVP_MD_CTX_destroy(_ctx); |
| if (_check != CHECK_NOT_REQUESTED) |
| _check = CHECK_REQUESTED; |
| _ctx = EVP_MD_CTX_create(); |
| EVP_DigestInit(_ctx, EVP_sha256()); |
| } |
| } |
| enum hash_check check() |
| { |
| if (_check == CHECK_REQUESTED) |
| { |
| unsigned int len; |
| std::vector<uint8_t> digest(EVP_MD_size(EVP_sha256())); |
| EVP_DigestFinal(_ctx, digest.data(), &len); |
| if (digest == _expected) |
| { |
| if (DEBUG) |
| std::cerr << "transfer sha2 check passed\n"; |
| _check = CHECK_PASSED_SHA2; |
| } |
| else |
| { |
| if (DEBUG) |
| std::cerr << "transfer sha2 check failed\n"; |
| _check = CHECK_FAILED_SHA2; |
| } |
| } |
| return _check; |
| } |
| uint8_t status() const |
| { |
| return static_cast<uint8_t>(_check); |
| } |
| }; |
| |
| std::shared_ptr<transfer_hash_check> xfer_hash_check; |
| |
| #ifdef UPDATER_ENABLED |
| static void activate_image(const char *obj_path) |
| { |
| if (DEBUG) |
| { |
| std::cerr << "activateImage()...\n"; |
| std::cerr << "obj_path = " << obj_path << "\n"; |
| } |
| std::shared_ptr<sdbusplus::asio::connection> bus = getSdBus(); |
| auto method_call = bus->new_method_call( |
| "xyz.openbmc_project.Software.BMC.Updater", obj_path, |
| "org.freedesktop.DBus.Properties", "Set"); |
| method_call.append( |
| "xyz.openbmc_project.Software.Activation", "RequestedActivation", |
| std::variant<std::string>("xyz.openbmc_project.Software.Activation." |
| "RequestedActivations.Active")); |
| |
| try |
| { |
| auto method_call_reply = bus->call(method_call); |
| } |
| catch (sdbusplus::exception::SdBusError &e) |
| { |
| std::cerr << "Failed in activate_image(): SDBus Error: " << e.what() |
| << "\n"; |
| return; |
| } |
| } |
| |
| static void post_transfer_complete_handler( |
| std::unique_ptr<sdbusplus::bus::match::match> &fw_update_matcher) |
| { |
| // Setup timer for watching signal |
| static phosphor::Timer timer( |
| [&fw_update_matcher]() { fw_update_matcher = nullptr; }); |
| |
| static phosphor::Timer activation_status_timer([]() { |
| if (fw_update_status.activation_timer_timeout() >= 95) |
| { |
| activation_status_timer.stop(); |
| } |
| }); |
| |
| timer.start(std::chrono::microseconds(5000000), false); |
| |
| // callback function for capturing signal |
| auto callback = [&fw_update_matcher](sdbusplus::message::message &m) { |
| if (DEBUG) |
| std::cerr << "[complete] Match fired\n"; |
| bool flag = false; |
| |
| std::vector<std::pair< |
| std::string, |
| std::vector<std::pair<std::string, std::variant<std::string>>>>> |
| interfaces_properties; |
| |
| sdbusplus::message::object_path obj_path; |
| |
| try |
| { |
| m.read(obj_path, interfaces_properties); // Read in the object path |
| // that was just created |
| } |
| catch (std::exception &e) |
| { |
| std::cerr |
| << "[complete] Failed at post_transfer_complete-handler : " |
| << e.what() << "\n"; |
| } |
| // constructing response message |
| if (DEBUG) |
| std::cerr << "[complete] obj path = " << obj_path.str << "\n"; |
| for (auto &interface : interfaces_properties) |
| { |
| if (DEBUG) |
| std::cerr << "[complete] interface = " << interface.first |
| << "\n"; |
| |
| if (interface.first == "xyz.openbmc_project.Software.Activation") |
| { |
| // cancel timer only when |
| // xyz.openbmc_project.Software.Activation interface is |
| // added |
| |
| if (DEBUG) |
| std::cerr << "[complete] Attempt to cancel timer...\n"; |
| try |
| { |
| timer.stop(); |
| activation_status_timer.start( |
| std::chrono::microseconds(3000000), true); |
| } |
| catch (std::exception &e) |
| { |
| std::cerr << "[complete] cancel timer error: " << e.what() |
| << "\n"; |
| } |
| |
| fw_update_status.set_software_obj_path(obj_path.str); |
| activate_image(obj_path.str.c_str()); |
| if (DEBUG) |
| std::cerr << "[complete] returned from activeImage()\n"; |
| |
| fw_update_matcher = nullptr; |
| } |
| } |
| }; |
| |
| // Adding matcher |
| fw_update_matcher = std::make_unique<sdbusplus::bus::match::match>( |
| *getSdBus(), |
| "interface='org.freedesktop.DBus.ObjectManager',type='signal'," |
| "member='InterfacesAdded',path='/xyz/openbmc_project/software'", |
| callback); |
| } |
| #endif |
| |
| class MappedFile |
| { |
| public: |
| MappedFile(const std::string &fname) : addr(nullptr), fsize(0) |
| { |
| std::error_code ec; |
| size_t sz = std::filesystem::file_size(fname, ec); |
| int fd = open(fname.c_str(), O_RDONLY); |
| if (!ec || fd < 0) |
| { |
| return; |
| } |
| void *tmp = mmap(NULL, sz, PROT_READ, MAP_SHARED, fd, 0); |
| close(fd); |
| if (tmp == MAP_FAILED) |
| { |
| return; |
| } |
| addr = tmp; |
| fsize = sz; |
| } |
| |
| ~MappedFile() |
| { |
| if (addr) |
| { |
| munmap(addr, fsize); |
| } |
| } |
| const uint8_t *data() const |
| { |
| return static_cast<const uint8_t *>(addr); |
| } |
| size_t size() const |
| { |
| return fsize; |
| } |
| |
| private: |
| size_t fsize; |
| void *addr; |
| }; |
| |
| static int transfer_from_file(const std::string &uri, bool move = true) |
| { |
| std::error_code ec; |
| if (DEBUG) |
| std::cerr << "transfer_from_file(" << uri << ")\n"; |
| if (move) |
| { |
| std::filesystem::rename(uri, FIRMWARE_BUFFER_FILE, ec); |
| } |
| else |
| { |
| std::filesystem::copy(uri, FIRMWARE_BUFFER_FILE, |
| std::filesystem::copy_options::overwrite_existing, |
| ec); |
| } |
| if (xfer_hash_check) |
| { |
| MappedFile mappedfw(uri); |
| xfer_hash_check->hash( |
| {mappedfw.data(), mappedfw.data() + mappedfw.size()}); |
| } |
| if (ec.value()) |
| { |
| std::cerr << "cp/mv returns: " << ec.message() << "(" << ec.value() |
| << ")\n"; |
| } |
| return ec.value(); |
| } |
| |
| template <typename... ArgTypes> |
| static int executeCmd(const char *path, ArgTypes &&... tArgs) |
| { |
| boost::process::child execProg(path, const_cast<char *>(tArgs)...); |
| execProg.wait(); |
| return execProg.exit_code(); |
| } |
| |
| constexpr char USB_CTRL_PATH[] = "/usr/bin/usb-ctrl"; |
| constexpr char FWUPDATE_MOUNT_POINT[] = "/tmp/usb-fwupd.mnt"; |
| constexpr char FWUPDATE_USB_VOL_IMG[] = "/tmp/usb-fwupd.img"; |
| constexpr char FWUPDATE_USB_DEV_NAME[] = "fw-usb-mass-storage-dev"; |
| constexpr size_t fwPathMaxLength = 255; |
| static int transfer_from_usb(const std::string &uri) |
| { |
| int ret, sysret; |
| char fwpath[fwPathMaxLength]; |
| if (DEBUG) |
| std::cerr << "transfer_from_usb(" << uri << ")\n"; |
| ret = executeCmd(USB_CTRL_PATH, "mount", FWUPDATE_USB_VOL_IMG, |
| FWUPDATE_MOUNT_POINT); |
| if (ret) |
| { |
| return ret; |
| } |
| |
| std::string usb_path = std::string(FWUPDATE_MOUNT_POINT) + "/" + uri; |
| ret = transfer_from_file(usb_path, false); |
| |
| executeCmd(USB_CTRL_PATH, "cleanup", FWUPDATE_USB_VOL_IMG, |
| FWUPDATE_MOUNT_POINT); |
| return ret; |
| } |
| |
| static bool transfer_firmware_from_uri(const std::string &uri) |
| { |
| static constexpr char FW_URI_FILE[] = "file://"; |
| static constexpr char FW_URI_USB[] = "usb://"; |
| if (DEBUG) |
| std::cerr << "transfer_firmware_from_uri(" << uri << ")\n"; |
| if (boost::algorithm::starts_with(uri, FW_URI_FILE)) |
| { |
| std::string fname = uri.substr(sizeof(FW_URI_FILE) - 1); |
| if (fname != FIRMWARE_BUFFER_FILE) |
| { |
| return 0 == transfer_from_file(fname); |
| } |
| return true; |
| } |
| if (boost::algorithm::starts_with(uri, FW_URI_USB)) |
| { |
| std::string fname = uri.substr(sizeof(FW_URI_USB) - 1); |
| return 0 == transfer_from_usb(fname); |
| } |
| return false; |
| } |
| |
| /* Get USB-mass-storage device status: inserted => true, ejected => false */ |
| static int usb_get_status() |
| { |
| static constexpr char usb_gadget_base[] = "/sys/kernel/config/usb_gadget/"; |
| auto usb_device = |
| std::filesystem::path(usb_gadget_base) / FWUPDATE_USB_DEV_NAME; |
| std::error_code ec; |
| return std::filesystem::exists(usb_device, ec) && !ec; |
| } |
| |
| /* Insert the USB-mass-storage device status: success => 0, failure => non-0 */ |
| static int usb_attach_device() |
| { |
| if (usb_get_status()) |
| { |
| return 1; |
| } |
| int ret = |
| executeCmd(USB_CTRL_PATH, "setup", FWUPDATE_USB_VOL_IMG, |
| std::to_string(FIRMWARE_BUFFER_MAX_SIZE / 1_MB).c_str()); |
| if (!ret) |
| { |
| ret = executeCmd(USB_CTRL_PATH, "insert", FWUPDATE_USB_DEV_NAME, |
| FWUPDATE_USB_VOL_IMG); |
| } |
| return ret; |
| } |
| |
| /* Eject the USB-mass-storage device status: success => 0, failure => non-0 */ |
| static int usb_detach_device() |
| { |
| if (!usb_get_status()) |
| { |
| return 1; |
| } |
| return executeCmd(USB_CTRL_PATH, "eject", FWUPDATE_USB_DEV_NAME); |
| } |
| |
| constexpr uint8_t controls_init = 0x00; |
| constexpr uint8_t controls_transfer_started = 0x01; |
| constexpr uint8_t controls_transfer_completed = 0x02; |
| constexpr uint8_t controls_transfer_aborted = 0x04; |
| constexpr uint8_t controls_usb_attached = 0x08; |
| |
| struct fw_update_control_request |
| { |
| enum knob |
| { |
| CTRL_GET = 0, |
| CTRL_XFER_START, |
| CTRL_XFER_COMPLETE, |
| CTRL_XFER_ABORT, |
| CTRL_SET_FILENAME, |
| CTRL_USB_ATTACH, |
| CTRL_USB_DETACH, |
| } __attribute__((packed)); |
| enum knob control; |
| uint8_t nlen; |
| char filename[fwPathMaxLength]; |
| } __attribute__((packed)); |
| |
| static ipmi_ret_t ipmi_firmware_control(ipmi_netfn_t netfn, ipmi_cmd_t cmd, |
| ipmi_request_t request, |
| ipmi_response_t response, |
| ipmi_data_len_t data_len, |
| ipmi_context_t context) |
| { |
| static std::string fw_xfer_uri; |
| |
| if (DEBUG) |
| std::cerr << "FW update control\n"; |
| *data_len = 0; |
| |
| static uint8_t controls = controls_init; |
| ipmi_ret_t rc = IPMI_CC_OK; |
| auto ctrl_req = reinterpret_cast<fw_update_control_request *>(request); |
| auto ctrl_resp = reinterpret_cast<uint8_t *>(response); |
| |
| if (usb_get_status()) |
| { |
| controls |= controls_usb_attached; |
| } |
| else |
| { |
| controls &= ~controls_usb_attached; |
| } |
| |
| switch (ctrl_req->control) |
| { |
| case fw_update_control_request::CTRL_GET: |
| break; |
| case fw_update_control_request::CTRL_XFER_START: |
| { |
| controls |= controls_transfer_started; |
| // reset buffer to empty (truncate file) |
| std::ofstream out(FIRMWARE_BUFFER_FILE, |
| std::ofstream::binary | std::ofstream::trunc); |
| fw_xfer_uri = std::string("file://") + FIRMWARE_BUFFER_FILE; |
| if (xfer_hash_check) |
| { |
| xfer_hash_check->clear(); |
| } |
| if (DEBUG) |
| std::cerr << "transfer start\n"; |
| } |
| break; |
| case fw_update_control_request::CTRL_XFER_COMPLETE: |
| { |
| if (usb_get_status()) |
| { |
| rc = IPMI_CC_REQ_INVALID_PHASE; |
| } |
| // finish transfer based on URI |
| if (!transfer_firmware_from_uri(fw_xfer_uri)) |
| { |
| rc = IPMI_CC_UNSPECIFIED_ERROR; |
| break; |
| } |
| // transfer complete |
| if (xfer_hash_check) |
| { |
| if (transfer_hash_check::CHECK_PASSED_SHA2 != |
| xfer_hash_check->check()) |
| { |
| if (DEBUG) |
| std::cerr << "xfer_hash_check returns not " |
| "CHECK_PASSED_SHA2\n"; |
| rc = IPMI_CC_UNSPECIFIED_ERROR; |
| break; |
| } |
| } |
| // start the request |
| if (!request_start_firmware_update(FIRMWARE_BUFFER_FILE)) |
| { |
| if (DEBUG) |
| std::cerr |
| << "request_start_firmware_update returns failure\n"; |
| rc = IPMI_CC_UNSPECIFIED_ERROR; |
| } |
| if (rc == IPMI_CC_OK) |
| { |
| controls |= controls_transfer_completed; |
| } |
| } |
| break; |
| case fw_update_control_request::CTRL_XFER_ABORT: |
| if (DEBUG) |
| std::cerr << "send abort request\n"; |
| if (usb_get_status()) |
| { |
| if (0 != usb_detach_device()) |
| { |
| rc = IPMI_CC_USB_ATTACH_FAIL; |
| } |
| } |
| if (!request_abort_firmware_update()) |
| { |
| if (DEBUG) |
| std::cerr |
| << "abort_start_firmware_update returns failure\n"; |
| rc = IPMI_CC_UNSPECIFIED_ERROR; |
| } |
| controls |= controls_transfer_aborted; |
| break; |
| case fw_update_control_request::CTRL_SET_FILENAME: |
| fw_xfer_uri.clear(); |
| fw_xfer_uri.insert(0, ctrl_req->filename, ctrl_req->nlen); |
| break; |
| case fw_update_control_request::CTRL_USB_ATTACH: |
| if (usb_get_status()) |
| { |
| rc = IPMI_CC_INVALID_FIELD_REQUEST; |
| } |
| else if (0 != usb_attach_device()) |
| { |
| rc = IPMI_CC_USB_ATTACH_FAIL; |
| } |
| else |
| { |
| rc = IPMI_CC_OK; |
| } |
| break; |
| case fw_update_control_request::CTRL_USB_DETACH: |
| if (!usb_get_status()) |
| { |
| rc = IPMI_CC_INVALID_FIELD_REQUEST; |
| } |
| if (0 != usb_detach_device()) |
| { |
| rc = IPMI_CC_USB_ATTACH_FAIL; |
| } |
| else |
| { |
| rc = IPMI_CC_OK; |
| } |
| break; |
| default: |
| if (DEBUG) |
| std::cerr << "control byte " << std::hex << ctrl_req->control |
| << " unknown\n"; |
| rc = IPMI_CC_INVALID_FIELD_REQUEST; |
| break; |
| } |
| |
| if (rc == IPMI_CC_OK) |
| { |
| *ctrl_resp = controls; |
| *data_len = sizeof(*ctrl_resp); |
| } |
| |
| return rc; |
| } |
| |
| struct fw_version_info |
| { |
| uint8_t id_tag; |
| uint8_t major; |
| uint8_t minor; |
| uint32_t build; |
| uint32_t build_time; |
| uint32_t update_time; |
| } __attribute__((packed)); |
| |
| static ipmi_ret_t ipmi_firmware_get_fw_version_info( |
| ipmi_netfn_t netfn, ipmi_cmd_t cmd, ipmi_request_t request, |
| ipmi_response_t response, ipmi_data_len_t data_len, ipmi_context_t context) |
| { |
| if (DEBUG) |
| std::cerr << "Get FW Version Info\n"; |
| |
| // Byte 1 - Count (N) Number of devices data is being returned for. |
| // Byte 2 - ID Tag 00 – reserved 01 – BMC Active Image 02 – BBU Active Image |
| // 03 – BMC Backup Image 04 – BBU Backup Image 05 – BBR |
| // Image |
| // Byte 3 - Major Version Number |
| // Byte 4 - Minor Version Number |
| // Bytes 5:8 - Build Number |
| // Bytes 9:12 - Build Timestamp Format: LSB first, same format as SEL |
| // timestamp |
| // Bytes 13:16 - Update Timestamp |
| // Bytes - 17:(15xN) - Repeat of 2 through 16 |
| |
| uint8_t count = 0; |
| auto ret_count = reinterpret_cast<uint8_t *>(response); |
| auto info = reinterpret_cast<struct fw_version_info *>(ret_count + 1); |
| |
| for (uint8_t id_tag = 1; id_tag < 6; id_tag++) |
| { |
| const char *fw_path; |
| switch (id_tag) |
| { |
| case 1: |
| fw_path = FW_UPDATE_ACTIVE_INFO_PATH; |
| break; |
| case 2: |
| fw_path = FW_UPDATE_BACKUP_INFO_PATH; |
| break; |
| case 3: |
| case 4: |
| case 5: |
| continue; // skip for now |
| break; |
| } |
| std::shared_ptr<sdbusplus::asio::connection> bus = getSdBus(); |
| auto method = |
| bus->new_method_call(FW_UPDATE_SERVER_DBUS_NAME, fw_path, |
| "org.freedesktop.DBus.Properties", "GetAll"); |
| method.append(FW_UPDATE_INFO_INTERFACE); |
| std::vector<std::pair<std::string, ipmi::DbusVariant>> properties; |
| try |
| { |
| auto reply = bus->call(method); |
| |
| if (reply.is_method_error()) |
| continue; |
| |
| reply.read(properties); |
| } |
| catch (sdbusplus::exception::SdBusError &e) |
| { |
| std::cerr << "SDBus Error: " << e.what(); |
| return IPMI_CC_UNSPECIFIED_ERROR; |
| } |
| uint8_t major = 0; |
| uint8_t minor = 0; |
| uint32_t build = 0; |
| int32_t build_time = 0; |
| int32_t update_time = 0; |
| for (const auto &t : properties) |
| { |
| auto key = t.first; |
| auto value = t.second; |
| if (key == "version") |
| { |
| auto strver = std::get<std::string>(value); |
| std::stringstream ss; |
| ss << std::hex << strver; |
| uint32_t t; |
| ss >> t; |
| major = t; |
| ss.ignore(); |
| ss >> t; |
| minor = t; |
| ss.ignore(); |
| ss >> build; |
| } |
| else if (key == "build_time") |
| { |
| build_time = std::get<int32_t>(value); |
| } |
| else if (key == "update_time") |
| { |
| update_time = std::get<int32_t>(value); |
| } |
| } |
| |
| info->id_tag = id_tag; |
| info->major = major; |
| info->minor = minor; |
| info->build = build; |
| info->build_time = build_time; |
| info->update_time = update_time; |
| count++; |
| info++; |
| } |
| *ret_count = count; |
| |
| // Status code. |
| ipmi_ret_t rc = IPMI_CC_OK; |
| *data_len = sizeof(count) + count * sizeof(*info); |
| |
| return rc; |
| } |
| |
| struct fw_security_revision_info |
| { |
| uint8_t id_tag; |
| uint16_t sec_rev; |
| } __attribute__((packed)); |
| |
| static ipmi_ret_t ipmi_firmware_get_fw_security_revision( |
| ipmi_netfn_t netfn, ipmi_cmd_t cmd, ipmi_request_t request, |
| ipmi_response_t response, ipmi_data_len_t data_len, ipmi_context_t context) |
| { |
| if (DEBUG) |
| std::cerr << "Get FW security revision info\n"; |
| |
| // Byte 1 - Count (N) Number of devices data is being returned for. |
| // Byte 2 - ID Tag 00 – reserved 01 – BMC Active Image 02 – BBU Active Image |
| // 03 – BMC Backup Image 04 – BBU Backup Image 05 – BBR |
| // Image |
| // Byte 3 - Major Version Number |
| // Byte 4 - Minor Version Number |
| // Bytes 5:8 - Build Number |
| // Bytes 9:12 - Build Timestamp Format: LSB first, same format as SEL |
| // timestamp |
| // Bytes 13:16 - Update Timestamp |
| // Bytes - 17:(15xN) - Repeat of 2 through 16 |
| |
| uint8_t count = 0; |
| auto ret_count = reinterpret_cast<uint8_t *>(response); |
| auto info = |
| reinterpret_cast<struct fw_security_revision_info *>(ret_count + 1); |
| |
| std::shared_ptr<sdbusplus::asio::connection> bus = getSdBus(); |
| for (uint8_t id_tag = 1; id_tag < 6; id_tag++) |
| { |
| const char *fw_path; |
| switch (id_tag) |
| { |
| case 1: |
| fw_path = FW_UPDATE_ACTIVE_INFO_PATH; |
| break; |
| case 2: |
| fw_path = FW_UPDATE_BACKUP_INFO_PATH; |
| break; |
| case 3: |
| case 4: |
| case 5: |
| continue; // skip for now |
| break; |
| } |
| auto method = |
| bus->new_method_call(FW_UPDATE_SERVER_DBUS_NAME, fw_path, |
| "org.freedesktop.DBus.Properties", "GetAll"); |
| method.append(FW_UPDATE_INFO_INTERFACE, "security_version"); |
| ipmi::DbusVariant sec_rev; |
| try |
| { |
| auto reply = bus->call(method); |
| |
| if (reply.is_method_error()) |
| continue; |
| |
| reply.read(sec_rev); |
| } |
| catch (sdbusplus::exception::SdBusError &e) |
| { |
| std::cerr << "SDBus Error: " << e.what(); |
| return IPMI_CC_UNSPECIFIED_ERROR; |
| } |
| |
| info->id_tag = id_tag; |
| info->sec_rev = std::get<int>(sec_rev); |
| count++; |
| info++; |
| } |
| *ret_count = count; |
| |
| // Status code. |
| ipmi_ret_t rc = IPMI_CC_OK; |
| *data_len = sizeof(count) + count * sizeof(*info); |
| |
| return rc; |
| } |
| |
| struct fw_channel_size |
| { |
| uint8_t channel_id; |
| uint32_t channel_size; |
| } __attribute__((packed)); |
| |
| enum |
| { |
| CHANNEL_RESVD = 0, |
| CHANNEL_KCS, |
| CHANNEL_RMCP_PLUS, |
| CHANNEL_USB_DATA, |
| CHANNEL_USB_MASS_STORAGE, |
| } channel_transfer_type; |
| |
| static constexpr uint8_t channelListSize = 2; |
| /** @brief implements Maximum Firmware Transfer size command |
| * @parameter |
| * - none |
| * @returns IPMI completion code plus response data |
| * - count - channel count |
| * - channelList - channel list information |
| */ |
| ipmi::RspType<uint8_t, // channel count |
| std::array<std::tuple<uint8_t, uint32_t>, |
| channelListSize> // channel |
| // list |
| > |
| ipmiFirmwareMaxTransferSize() |
| { |
| constexpr uint8_t KCSMaxBufSize = 128; |
| constexpr uint32_t RMCPPLUSMaxBufSize = 50 * 1024; |
| if (DEBUG) |
| std::cerr << "Get FW max transfer size\n"; |
| // Byte 1 - Count (N) Number of devices data is being returned for. |
| // Byte 2 - ID Tag 00 – reserved 01 – kcs 02 – rmcp+, |
| // 03 – usb data, 04 – usb mass storage |
| // Byte 3-6 - transfer size (little endian) |
| // Bytes - 7:(5xN) - Repeat of 2 through 6 |
| constexpr std::array<std::tuple<uint8_t, uint32_t>, channelListSize> |
| channelList = {{{CHANNEL_KCS, KCSMaxBufSize}, |
| {CHANNEL_RMCP_PLUS, RMCPPLUSMaxBufSize}}}; |
| return ipmi::responseSuccess(channelListSize, channelList); |
| } |
| |
| enum |
| { |
| EXEC_CTX_RESVD = 0, |
| EXEC_CTX_FULL_LINUX = 0x10, |
| EXEC_CTX_SAFE_MODE_LINUX = 0x11, |
| } bmc_execution_context; |
| |
| struct fw_execution_context |
| { |
| uint8_t context; |
| uint8_t image_selection; |
| } __attribute__((packed)); |
| |
| static ipmi_ret_t ipmi_firmware_get_fw_execution_context( |
| ipmi_netfn_t netfn, ipmi_cmd_t cmd, ipmi_request_t request, |
| ipmi_response_t response, ipmi_data_len_t data_len, ipmi_context_t context) |
| { |
| if (DEBUG) |
| std::cerr << "Get FW execution context\n"; |
| |
| // Byte 1 - execution context |
| // 0x10 - full linux stack, 0x11 - safe-mode linux stack |
| // Byte 2 - current image selection |
| // 1 - primary, 2 - secondary |
| |
| auto info = reinterpret_cast<struct fw_execution_context *>(response); |
| std::shared_ptr<sdbusplus::asio::connection> bus = getSdBus(); |
| auto method = |
| bus->new_method_call(FW_UPDATE_SERVER_DBUS_NAME, FW_UPDATE_SERVER_PATH, |
| "org.freedesktop.DBus.Properties", "GetAll"); |
| method.append(FW_UPDATE_SECURITY_INTERFACE); |
| int active_img; |
| bool safe_mode; |
| std::string cert; |
| try |
| { |
| auto reply = bus->call(method); |
| |
| if (!reply.is_method_error()) |
| { |
| std::vector<std::pair<std::string, ipmi::DbusVariant>> properties; |
| reply.read(properties); |
| |
| for (const auto &t : properties) |
| { |
| auto key = t.first; |
| auto value = t.second; |
| if (key == "active_partition") |
| { |
| active_img = std::get<int>(value); |
| } |
| else if (key == "safe_mode") |
| { |
| safe_mode = std::get<bool>(value); |
| } |
| } |
| } |
| } |
| catch (sdbusplus::exception::SdBusError &e) |
| { |
| std::cerr << "SDBus Error: " << e.what(); |
| return IPMI_CC_UNSPECIFIED_ERROR; |
| } |
| |
| if (safe_mode) |
| info->context = EXEC_CTX_SAFE_MODE_LINUX; |
| else |
| info->context = EXEC_CTX_FULL_LINUX; |
| |
| info->image_selection = active_img; |
| |
| // Status code. |
| ipmi_ret_t rc = IPMI_CC_OK; |
| *data_len = sizeof(*info); |
| |
| return rc; |
| } |
| |
| /** @brief implements firmware get status command |
| * @parameter |
| * - none |
| * @returns IPMI completion code plus response data |
| * - status - processing status |
| * - percentage - percentage completion |
| * - check - channel integrity check status |
| **/ |
| ipmi::RspType<uint8_t, // status |
| uint8_t, // percentage |
| uint8_t // check |
| > |
| ipmiFrmwareGetStatus() |
| |
| { |
| if (DEBUG) |
| std::cerr << "Get FW update status\n"; |
| // Byte 1 - status (0=init, 1=idle, 2=download, 3=validate, 4=write, |
| // 5=ready, f=error, 83=ac cycle required) |
| // Byte 2 - percent |
| // Byte 3 - integrity check status (0=none, 1=req, 2=sha2ok, e2=sha2fail) |
| uint8_t status = fw_update_status.state(); |
| uint8_t percent = fw_update_status.percent(); |
| uint8_t check = xfer_hash_check ? xfer_hash_check->status() : 0; |
| |
| // Status code. |
| return ipmi::responseSuccess(status, percent, check); |
| } |
| |
| static constexpr uint8_t FW_UPDATE_OPTIONS_NO_DOWNREV = (1 << 0); |
| static constexpr uint8_t FW_UPDATE_OPTIONS_DEFER_RESTART = (1 << 1); |
| static constexpr uint8_t FW_UPDATE_OPTIONS_SHA2_CHECK = (1 << 2); |
| static constexpr uint8_t FW_UPDATE_OPTIONS_RESVD1 = (1 << 3); |
| struct fw_update_options_request |
| { |
| uint8_t mask; |
| uint8_t options; |
| } __attribute__((packed)); |
| |
| bool fw_update_set_dbus_property(const std::string &path, |
| const std::string &iface, |
| const std::string &name, |
| ipmi::DbusVariant value) |
| { |
| std::shared_ptr<sdbusplus::asio::connection> bus = getSdBus(); |
| auto method = |
| bus->new_method_call(FW_UPDATE_SERVER_DBUS_NAME, path.c_str(), |
| "org.freedesktop.DBus.Properties", "Set"); |
| method.append(iface, name, value); |
| try |
| { |
| auto reply = bus->call(method); |
| auto err = reply.is_method_error(); |
| if (err) |
| if (DEBUG) |
| std::cerr << "failed to set prop " << path << '/' << iface |
| << '.' << name << '\n'; |
| return err; |
| } |
| catch (sdbusplus::exception::SdBusError &e) |
| { |
| std::cerr << "SDBus Error: " << e.what(); |
| return false; |
| } |
| } |
| |
| uint32_t fw_update_options = 0; |
| static ipmi_ret_t ipmi_firmware_update_options( |
| ipmi_netfn_t netfn, ipmi_cmd_t cmd, ipmi_request_t request, |
| ipmi_response_t response, ipmi_data_len_t data_len, ipmi_context_t context) |
| { |
| if (DEBUG) |
| std::cerr << "Get/set FW update options\n"; |
| |
| // request: |
| // Byte 1 - mask |
| // Byte 2 - options |
| // Byte 3-34 - optional integrity check expected value |
| // response: |
| // Byte 1 - set options |
| |
| auto fw_options = |
| reinterpret_cast<struct fw_update_options_request *>(request); |
| |
| const char *path = FW_UPDATE_SERVER_INFO_PATH; |
| const char *iface = FW_UPDATE_SECURITY_INTERFACE; |
| if ((fw_options->mask & FW_UPDATE_OPTIONS_NO_DOWNREV) && |
| (fw_options->options & FW_UPDATE_OPTIONS_NO_DOWNREV) != |
| (fw_update_options & FW_UPDATE_OPTIONS_NO_DOWNREV)) |
| { |
| if (fw_options->options & FW_UPDATE_OPTIONS_NO_DOWNREV) |
| { |
| fw_update_options |= FW_UPDATE_OPTIONS_NO_DOWNREV; |
| } |
| else |
| { |
| fw_update_options &= ~FW_UPDATE_OPTIONS_NO_DOWNREV; |
| // send dbus |
| } |
| const char *name = "inhibit_downgrade"; |
| fw_update_set_dbus_property( |
| path, iface, name, |
| (bool)(!!(fw_update_options & FW_UPDATE_OPTIONS_NO_DOWNREV))); |
| } |
| if ((fw_options->mask & FW_UPDATE_OPTIONS_DEFER_RESTART) && |
| (fw_options->options & FW_UPDATE_OPTIONS_DEFER_RESTART) != |
| (fw_update_options & FW_UPDATE_OPTIONS_DEFER_RESTART)) |
| { |
| if (fw_options->options & FW_UPDATE_OPTIONS_DEFER_RESTART) |
| { |
| fw_update_options |= FW_UPDATE_OPTIONS_DEFER_RESTART; |
| } |
| else |
| { |
| fw_update_options &= ~FW_UPDATE_OPTIONS_DEFER_RESTART; |
| } |
| const char *name = "defer_restart"; |
| fw_update_set_dbus_property( |
| path, iface, name, |
| (bool)(!!(fw_update_options & FW_UPDATE_OPTIONS_DEFER_RESTART))); |
| } |
| if (fw_options->mask & FW_UPDATE_OPTIONS_SHA2_CHECK) |
| { |
| auto hash_size = EVP_MD_size(EVP_sha256()); |
| if (fw_options->options & FW_UPDATE_OPTIONS_SHA2_CHECK) |
| { |
| if (*data_len != (sizeof(*fw_options) + hash_size)) |
| { |
| *data_len = 0; |
| return IPMI_CC_REQ_DATA_LEN_INVALID; |
| } |
| xfer_hash_check = std::make_shared<transfer_hash_check>(); |
| auto exp_hash = reinterpret_cast<uint8_t *>(fw_options + 1); |
| xfer_hash_check->init({exp_hash, exp_hash + hash_size}); |
| fw_update_options |= FW_UPDATE_OPTIONS_SHA2_CHECK; |
| } |
| else |
| { |
| fw_update_options &= ~FW_UPDATE_OPTIONS_SHA2_CHECK; |
| // delete the xfer_hash_check object |
| xfer_hash_check.reset(); |
| } |
| } |
| auto options_rsp = reinterpret_cast<uint8_t *>(response); |
| *options_rsp = fw_update_options; |
| |
| if (DEBUG) |
| std::cerr << "current fw_update_options = " << std::hex |
| << fw_update_options << '\n'; |
| // Status code. |
| *data_len = sizeof(*options_rsp); |
| return IPMI_CC_OK; |
| } |
| |
| struct fw_cert_info |
| { |
| uint16_t cert_len; |
| uint64_t serial; |
| uint8_t subject_len; |
| char subject[255]; |
| } __attribute__((packed)); |
| |
| static ipmi_ret_t ipmi_firmware_get_root_cert_info( |
| ipmi_netfn_t netfn, ipmi_cmd_t cmd, ipmi_request_t request, |
| ipmi_response_t response, ipmi_data_len_t data_len, ipmi_context_t context) |
| { |
| if (DEBUG) |
| std::cerr << "Get FW root cert info\n"; |
| |
| // request: |
| // Byte 1 - certificate ID: request which certificate (ignored) |
| |
| // response: |
| // Byte 1-2 - certificate length (little endian) |
| // Byte 3-10 - serial number (little endian) |
| // Byte 11 - subject length |
| // Byte 12-N - subject data |
| |
| auto cert_info = reinterpret_cast<struct fw_cert_info *>(response); |
| std::shared_ptr<sdbusplus::asio::connection> bus = getSdBus(); |
| auto method = bus->new_method_call( |
| FW_UPDATE_SERVER_DBUS_NAME, FW_UPDATE_SERVER_INFO_PATH, |
| "org.freedesktop.DBus.Properties", "GetAll"); |
| method.append(FW_UPDATE_SECURITY_INTERFACE); |
| std::string subject; |
| uint64_t serial; |
| std::string cert; |
| try |
| { |
| auto reply = bus->call(method); |
| |
| std::vector<std::pair<std::string, ipmi::DbusVariant>> properties; |
| reply.read(properties); |
| |
| for (const auto &t : properties) |
| { |
| auto key = t.first; |
| auto value = t.second; |
| if (key == "certificate_subject") |
| { |
| subject = std::get<std::string>(value); |
| } |
| else if (key == "cetificate_serial") |
| { |
| serial = std::get<uint64_t>(value); |
| } |
| else if (key == "certificate") |
| { |
| cert = std::get<std::string>(value); |
| } |
| } |
| } |
| catch (sdbusplus::exception::SdBusError &e) |
| { |
| std::cerr << "SDBus Error: " << e.what(); |
| return IPMI_CC_UNSPECIFIED_ERROR; |
| } |
| |
| cert_info->cert_len = cert.size(); |
| cert_info->serial = serial; |
| // truncate subject so it fits in the 255-byte array (if necessary) |
| if (subject.size() > sizeof(cert_info->subject)) |
| subject.resize(sizeof(cert_info->subject)); |
| cert_info->subject_len = subject.size(); |
| std::copy(subject.begin(), subject.end(), cert_info->subject); |
| |
| // Status code. |
| ipmi_ret_t rc = IPMI_CC_OK; |
| // make sure to account for the *actual* size of the subject |
| *data_len = sizeof(*cert_info) - sizeof(cert_info->subject) + |
| cert_info->subject_len; |
| |
| return rc; |
| } |
| |
| struct fw_cert_data_req |
| { |
| uint8_t cert_id; |
| uint16_t offset; |
| uint16_t count; |
| } __attribute__((packed)); |
| |
| static ipmi_ret_t ipmi_firmware_get_root_cert_data( |
| ipmi_netfn_t netfn, ipmi_cmd_t cmd, ipmi_request_t request, |
| ipmi_response_t response, ipmi_data_len_t data_len, ipmi_context_t context) |
| { |
| if (DEBUG) |
| std::cerr << "Get FW root cert data\n"; |
| |
| // request: |
| // Byte 1 - certificate ID: request which certificate (ignored) |
| // Byte 2-3 - offset within cert to start at |
| // Byte 4-5 - number of bytes to return |
| |
| // response: |
| // Byte 1-N - certificate data |
| |
| if (*data_len != sizeof(fw_cert_data_req)) |
| return IPMI_CC_REQ_DATA_LEN_INVALID; |
| |
| auto cert_data_req = reinterpret_cast<struct fw_cert_data_req *>(request); |
| std::shared_ptr<sdbusplus::asio::connection> bus = getSdBus(); |
| auto method = bus->new_method_call( |
| FW_UPDATE_SERVER_DBUS_NAME, FW_UPDATE_SERVER_INFO_PATH, |
| "org.freedesktop.DBus.Properties", "Get"); |
| method.append(FW_UPDATE_SECURITY_INTERFACE, "certificate"); |
| ipmi::DbusVariant cert; |
| try |
| { |
| auto reply = bus->call(method); |
| reply.read(cert); |
| } |
| catch (sdbusplus::exception::SdBusError &e) |
| { |
| std::cerr << "SDBus Error: " << e.what(); |
| return IPMI_CC_UNSPECIFIED_ERROR; |
| } |
| auto cert_data = std::get<std::string>(cert); |
| |
| if (cert_data_req->offset >= cert_data.size()) |
| { |
| *data_len = 0; |
| return IPMI_CC_INVALID_FIELD_REQUEST; |
| } |
| auto first = cert_data.begin() + cert_data_req->offset; |
| auto last = first + cert_data_req->count; |
| if (last > cert_data.end()) |
| last = cert_data.end(); |
| |
| auto data_out = reinterpret_cast<char *>(response); |
| std::copy(first, last, data_out); |
| |
| // Status code. |
| ipmi_ret_t rc = IPMI_CC_OK; |
| *data_len = (last - first); |
| |
| return rc; |
| } |
| |
| static ipmi_ret_t ipmi_firmware_write_data(ipmi_netfn_t netfn, ipmi_cmd_t cmd, |
| ipmi_request_t request, |
| ipmi_response_t response, |
| ipmi_data_len_t data_len, |
| ipmi_context_t context) |
| { |
| if (DEBUG) |
| std::cerr << "write fw data (" << *data_len << " bytes)\n"; |
| |
| auto bytes_in = *data_len; |
| *data_len = 0; |
| if (fw_update_status.state() != fw_update_status_cache::FW_STATE_DOWNLOAD) |
| return IPMI_CC_INVALID; |
| |
| std::ofstream out(FIRMWARE_BUFFER_FILE, |
| std::ofstream::binary | std::ofstream::app); |
| if (!out) |
| { |
| return IPMI_CC_UNSPECIFIED_ERROR; |
| } |
| if (out.tellp() > FIRMWARE_BUFFER_MAX_SIZE) |
| { |
| return IPMI_CC_INVALID_FIELD_REQUEST; |
| } |
| auto data = reinterpret_cast<uint8_t *>(request); |
| out.write(reinterpret_cast<char *>(data), bytes_in); |
| out.close(); |
| if (xfer_hash_check) |
| { |
| xfer_hash_check->hash({data, data + bytes_in}); |
| } |
| |
| // Status code. |
| return IPMI_CC_OK; |
| } |
| |
| static constexpr char NOT_IMPLEMENTED[] = "NOT IMPLEMENTED"; |
| |
| static ipmi_ret_t ipmi_firmware_wildcard_handler( |
| ipmi_netfn_t netfn, ipmi_cmd_t cmd, ipmi_request_t request, |
| ipmi_response_t response, ipmi_data_len_t data_len, ipmi_context_t context) |
| { |
| if (DEBUG) |
| std::cerr << "Handling stubbed Netfn:[0x" << std::hex << +netfn |
| << "], Cmd:[0x" << std::hex << +cmd << "]\n"; |
| |
| // Status code. |
| ipmi_ret_t rc = IPMI_CC_OK; |
| |
| *data_len = sizeof(NOT_IMPLEMENTED); |
| |
| // Now pack actual response |
| char *msg_reply = static_cast<char *>(response); |
| std::copy(std::begin(NOT_IMPLEMENTED), std::end(NOT_IMPLEMENTED), |
| msg_reply); |
| |
| return rc; |
| } |
| |
| struct intc_app_get_buffer_size_resp |
| { |
| uint8_t kcs_size; |
| uint8_t ipmb_size; |
| } __attribute__((packed)); |
| |
| static constexpr int KCS_MAX_BUFFER_SIZE = 63; |
| static constexpr int IPMB_MAX_BUFFER_SIZE = 128; |
| static ipmi_ret_t ipmi_intel_app_get_buffer_size( |
| ipmi_netfn_t netfn, ipmi_cmd_t cmd, ipmi_request_t request, |
| ipmi_response_t response, ipmi_data_len_t data_len, ipmi_context_t context) |
| { |
| auto msg_reply = |
| reinterpret_cast<intc_app_get_buffer_size_resp *>(response); |
| // for now this is hard coded; really this number is dependent on |
| // the BMC kcs driver as well as the host kcs driver.... |
| // we can't know the latter. |
| msg_reply->kcs_size = KCS_MAX_BUFFER_SIZE / 4; |
| msg_reply->ipmb_size = IPMB_MAX_BUFFER_SIZE / 4; |
| *data_len = sizeof(*msg_reply); |
| |
| return IPMI_CC_OK; |
| } |
| |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_GET_FW_VERSION_INFO = 0x20; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_GET_FW_SEC_VERSION_INFO = 0x21; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_GET_FW_UPD_CHAN_INFO = 0x22; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_GET_BMC_EXEC_CTX = 0x23; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_GET_ROOT_CERT_INFO = 0x24; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_GET_ROOT_CERT_DATA = 0x25; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_GET_FW_UPDATE_RAND_NUM = 0x26; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_SET_FW_UPDATE_MODE = 0x27; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_EXIT_FW_UPDATE_MODE = 0x28; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_UPDATE_CONTROL = 0x29; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_GET_STATUS = 0x2a; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_SET_FW_UPDATE_OPTIONS = 0x2b; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_IMAGE_WRITE = 0x2c; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_GET_TIMESTAMP = 0x2d; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_GET_UPDATE_ERR_MSG = 0xe0; |
| static constexpr ipmi_cmd_t IPMI_CMD_FW_GET_REMOTE_FW_INFO = 0xf0; |
| |
| static constexpr ipmi_netfn_t NETFUN_INTC_APP = 0x30; |
| static constexpr ipmi_cmd_t IPMI_CMD_INTC_GET_BUFFER_SIZE = 0x66; |
| |
| static void register_netfn_firmware_functions() |
| { |
| // guarantee that we start with an already timed out timestamp |
| fw_random_number_timestamp = |
| std::chrono::steady_clock::now() - FW_RANDOM_NUMBER_TTL; |
| |
| unlink(FIRMWARE_BUFFER_FILE); |
| |
| // <Get BT Interface Capabilities> |
| if (DEBUG) |
| std::cerr << "Registering firmware update commands\n"; |
| |
| // get firmware version information |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_GET_FW_VERSION_INFO, |
| NULL, ipmi_firmware_get_fw_version_info, |
| PRIVILEGE_ADMIN); |
| |
| // get firmware security version information |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_GET_FW_SEC_VERSION_INFO, |
| NULL, ipmi_firmware_get_fw_security_revision, |
| PRIVILEGE_ADMIN); |
| |
| // get channel information (max transfer sizes) |
| ipmi::registerHandler(ipmi::prioOemBase, NETFUN_FIRMWARE, |
| IPMI_CMD_FW_GET_FW_UPD_CHAN_INFO, |
| ipmi::Privilege::Admin, ipmiFirmwareMaxTransferSize); |
| |
| // get bmc execution context |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_GET_BMC_EXEC_CTX, NULL, |
| ipmi_firmware_get_fw_execution_context, |
| PRIVILEGE_ADMIN); |
| |
| // get root certificate information |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_GET_ROOT_CERT_INFO, |
| NULL, ipmi_firmware_get_root_cert_info, |
| PRIVILEGE_ADMIN); |
| |
| // get root certificate data |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_GET_ROOT_CERT_DATA, |
| NULL, ipmi_firmware_get_root_cert_data, |
| PRIVILEGE_ADMIN); |
| |
| // generate bmc fw update random number (for enter fw tranfer mode) |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_GET_FW_UPDATE_RAND_NUM, |
| NULL, ipmi_firmware_get_fw_random_number, |
| PRIVILEGE_ADMIN); |
| |
| // enter firmware update mode |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_SET_FW_UPDATE_MODE, |
| NULL, ipmi_firmware_enter_fw_transfer_mode, |
| PRIVILEGE_ADMIN); |
| |
| // exit firmware update mode |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_EXIT_FW_UPDATE_MODE, |
| NULL, ipmi_firmware_exit_fw_update_mode, |
| PRIVILEGE_ADMIN); |
| |
| // firmware control mechanism (set filename, usb, etc.) |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_UPDATE_CONTROL, NULL, |
| ipmi_firmware_control, PRIVILEGE_ADMIN); |
| |
| // get firmware update status |
| ipmi::registerHandler(ipmi::prioOemBase, NETFUN_FIRMWARE, |
| IPMI_CMD_FW_GET_STATUS, ipmi::Privilege::Admin, |
| ipmiFrmwareGetStatus); |
| // set firmware update options (no downgrade, etc.) |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_SET_FW_UPDATE_OPTIONS, |
| NULL, ipmi_firmware_update_options, PRIVILEGE_ADMIN); |
| |
| // write image data |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_IMAGE_WRITE, NULL, |
| ipmi_firmware_write_data, PRIVILEGE_ADMIN); |
| |
| // get update timestamps |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_GET_TIMESTAMP, NULL, |
| ipmi_firmware_wildcard_handler, PRIVILEGE_ADMIN); |
| |
| // get error message (when in error state) |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_GET_UPDATE_ERR_MSG, |
| NULL, ipmi_firmware_wildcard_handler, |
| PRIVILEGE_ADMIN); |
| |
| // get remote firmware information (PSU, HSBP, etc.) |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_FW_GET_REMOTE_FW_INFO, |
| NULL, ipmi_firmware_wildcard_handler, |
| PRIVILEGE_ADMIN); |
| |
| // <Wildcard Command> |
| ipmi_register_callback(NETFUN_FIRMWARE, IPMI_CMD_WILDCARD, NULL, |
| ipmi_firmware_wildcard_handler, PRIVILEGE_ADMIN); |
| |
| // get buffer size is used by fw update (exclusively?) |
| ipmi_register_callback(NETFUN_INTC_APP, IPMI_CMD_INTC_GET_BUFFER_SIZE, NULL, |
| ipmi_intel_app_get_buffer_size, PRIVILEGE_USER); |
| return; |
| } |