1 2 #include "common/flight_recorder.hpp" 3 #include "common/instance_id.hpp" 4 #include "common/transport.hpp" 5 #include "common/utils.hpp" 6 #include "dbus_impl_requester.hpp" 7 #include "fw-update/manager.hpp" 8 #include "invoker.hpp" 9 #include "platform-mc/manager.hpp" 10 #include "requester/handler.hpp" 11 #include "requester/mctp_endpoint_discovery.hpp" 12 #include "requester/request.hpp" 13 14 #include <err.h> 15 #include <getopt.h> 16 #include <libpldm/base.h> 17 #include <libpldm/bios.h> 18 #include <libpldm/pdr.h> 19 #include <libpldm/platform.h> 20 #include <libpldm/transport.h> 21 #include <poll.h> 22 #include <stdlib.h> 23 #include <sys/socket.h> 24 #include <sys/types.h> 25 #include <sys/un.h> 26 #include <unistd.h> 27 28 #include <phosphor-logging/lg2.hpp> 29 #include <sdeventplus/event.hpp> 30 #include <sdeventplus/source/io.hpp> 31 #include <sdeventplus/source/signal.hpp> 32 #include <stdplus/signal.hpp> 33 34 #include <cstdio> 35 #include <cstring> 36 #include <fstream> 37 #include <iomanip> 38 #include <iterator> 39 #include <memory> 40 #include <ranges> 41 #include <sstream> 42 #include <stdexcept> 43 #include <string> 44 #include <vector> 45 46 PHOSPHOR_LOG2_USING; 47 48 #ifdef LIBPLDMRESPONDER 49 #include "dbus_impl_pdr.hpp" 50 #include "host-bmc/dbus_to_event_handler.hpp" 51 #include "host-bmc/dbus_to_terminus_effecters.hpp" 52 #include "host-bmc/host_condition.hpp" 53 #include "host-bmc/host_pdr_handler.hpp" 54 #include "libpldmresponder/base.hpp" 55 #include "libpldmresponder/bios.hpp" 56 #include "libpldmresponder/fru.hpp" 57 #include "libpldmresponder/oem_handler.hpp" 58 #include "libpldmresponder/platform.hpp" 59 #include "libpldmresponder/platform_config.hpp" 60 #include "xyz/openbmc_project/PLDM/Event/server.hpp" 61 #endif 62 63 #ifdef OEM_IBM 64 #include "oem_ibm.hpp" 65 #endif 66 67 constexpr const char* PLDMService = "xyz.openbmc_project.PLDM"; 68 69 using namespace pldm; 70 using namespace sdeventplus; 71 using namespace sdeventplus::source; 72 using namespace pldm::responder; 73 using namespace pldm::utils; 74 using sdeventplus::source::Signal; 75 using namespace pldm::flightrecorder; 76 77 void interruptFlightRecorderCallBack(Signal& /*signal*/, 78 const struct signalfd_siginfo*) 79 { 80 error("Received SIGUR1(10) Signal interrupt"); 81 // obtain the flight recorder instance and dump the recorder 82 FlightRecorder::GetInstance().playRecorder(); 83 } 84 85 void requestPLDMServiceName() 86 { 87 try 88 { 89 auto& bus = pldm::utils::DBusHandler::getBus(); 90 bus.request_name(PLDMService); 91 } 92 catch (const sdbusplus::exception_t& e) 93 { 94 error("Failed to request D-Bus name {NAME} with error {ERROR}.", "NAME", 95 PLDMService, "ERROR", e); 96 } 97 } 98 99 static std::optional<Response> 100 processRxMsg(const std::vector<uint8_t>& requestMsg, Invoker& invoker, 101 requester::Handler<requester::Request>& handler, 102 fw_update::Manager* fwManager, pldm_tid_t tid) 103 { 104 uint8_t eid = tid; 105 106 pldm_header_info hdrFields{}; 107 auto hdr = reinterpret_cast<const pldm_msg_hdr*>(requestMsg.data()); 108 if (PLDM_SUCCESS != unpack_pldm_header(hdr, &hdrFields)) 109 { 110 error("Empty PLDM request header"); 111 return std::nullopt; 112 } 113 114 if (PLDM_RESPONSE != hdrFields.msg_type) 115 { 116 Response response; 117 auto request = reinterpret_cast<const pldm_msg*>(hdr); 118 size_t requestLen = requestMsg.size() - sizeof(struct pldm_msg_hdr); 119 try 120 { 121 if (hdrFields.pldm_type != PLDM_FWUP) 122 { 123 response = 124 invoker.handle(tid, hdrFields.pldm_type, hdrFields.command, 125 request, requestLen); 126 } 127 else 128 { 129 response = fwManager->handleRequest(eid, hdrFields.command, 130 request, requestLen); 131 } 132 } 133 catch (const std::out_of_range& e) 134 { 135 uint8_t completion_code = PLDM_ERROR_UNSUPPORTED_PLDM_CMD; 136 response.resize(sizeof(pldm_msg_hdr)); 137 auto responseHdr = reinterpret_cast<pldm_msg_hdr*>(response.data()); 138 pldm_header_info header{}; 139 header.msg_type = PLDM_RESPONSE; 140 header.instance = hdrFields.instance; 141 header.pldm_type = hdrFields.pldm_type; 142 header.command = hdrFields.command; 143 if (PLDM_SUCCESS != pack_pldm_header(&header, responseHdr)) 144 { 145 error( 146 "Failed to add response header for processing Rx, error - {ERROR}", 147 "ERROR", e); 148 return std::nullopt; 149 } 150 response.insert(response.end(), completion_code); 151 } 152 return response; 153 } 154 else if (PLDM_RESPONSE == hdrFields.msg_type) 155 { 156 auto response = reinterpret_cast<const pldm_msg*>(hdr); 157 size_t responseLen = requestMsg.size() - sizeof(struct pldm_msg_hdr); 158 handler.handleResponse(eid, hdrFields.instance, hdrFields.pldm_type, 159 hdrFields.command, response, responseLen); 160 } 161 return std::nullopt; 162 } 163 164 void optionUsage(void) 165 { 166 info("Usage: pldmd [options]"); 167 info("Options:"); 168 info(" [--verbose] - would enable verbosity"); 169 } 170 171 int main(int argc, char** argv) 172 { 173 bool verbose = false; 174 static struct option long_options[] = {{"verbose", no_argument, 0, 'v'}, 175 {0, 0, 0, 0}}; 176 177 auto argflag = getopt_long(argc, argv, "v", long_options, nullptr); 178 switch (argflag) 179 { 180 case 'v': 181 verbose = true; 182 break; 183 case -1: 184 break; 185 default: 186 optionUsage(); 187 exit(EXIT_FAILURE); 188 } 189 // Setup PLDM requester transport 190 auto hostEID = pldm::utils::readHostEID(); 191 /* To maintain current behaviour until we have the infrastructure to find 192 * and use the correct TIDs */ 193 pldm_tid_t TID = hostEID; 194 PldmTransport pldmTransport{}; 195 auto event = Event::get_default(); 196 auto& bus = pldm::utils::DBusHandler::getBus(); 197 sdbusplus::server::manager_t objManager(bus, 198 "/xyz/openbmc_project/software"); 199 sdbusplus::server::manager_t sensorObjManager( 200 bus, "/xyz/openbmc_project/sensors"); 201 202 InstanceIdDb instanceIdDb; 203 dbus_api::Requester dbusImplReq(bus, "/xyz/openbmc_project/pldm", 204 instanceIdDb); 205 sdbusplus::server::manager_t inventoryManager( 206 bus, "/xyz/openbmc_project/inventory"); 207 208 Invoker invoker{}; 209 requester::Handler<requester::Request> reqHandler(&pldmTransport, event, 210 instanceIdDb, verbose); 211 212 std::unique_ptr<pldm_pdr, decltype(&pldm_pdr_destroy)> pdrRepo( 213 pldm_pdr_init(), pldm_pdr_destroy); 214 if (!pdrRepo) 215 { 216 throw std::runtime_error("Failed to instantiate PDR repository"); 217 } 218 DBusHandler dbusHandler; 219 std::unique_ptr<pldm::host_effecters::HostEffecterParser> 220 hostEffecterParser = 221 std::make_unique<pldm::host_effecters::HostEffecterParser>( 222 &instanceIdDb, pldmTransport.getEventSource(), pdrRepo.get(), 223 &dbusHandler, HOST_JSONS_DIR, &reqHandler); 224 #ifdef LIBPLDMRESPONDER 225 using namespace pldm::state_sensor; 226 dbus_api::Host dbusImplHost(bus, "/xyz/openbmc_project/pldm"); 227 std::unique_ptr<pldm_entity_association_tree, 228 decltype(&pldm_entity_association_tree_destroy)> 229 entityTree(pldm_entity_association_tree_init(), 230 pldm_entity_association_tree_destroy); 231 if (!entityTree) 232 { 233 throw std::runtime_error( 234 "Failed to instantiate general PDR entity association tree"); 235 } 236 std::unique_ptr<pldm_entity_association_tree, 237 decltype(&pldm_entity_association_tree_destroy)> 238 bmcEntityTree(pldm_entity_association_tree_init(), 239 pldm_entity_association_tree_destroy); 240 if (!bmcEntityTree) 241 { 242 throw std::runtime_error( 243 "Failed to instantiate BMC PDR entity association tree"); 244 } 245 std::shared_ptr<HostPDRHandler> hostPDRHandler; 246 std::unique_ptr<DbusToPLDMEvent> dbusToPLDMEventHandler; 247 std::unique_ptr<platform_config::Handler> platformConfigHandler{}; 248 platformConfigHandler = 249 std::make_unique<platform_config::Handler>(PDR_JSONS_DIR); 250 251 if (hostEID) 252 { 253 hostPDRHandler = std::make_shared<HostPDRHandler>( 254 pldmTransport.getEventSource(), hostEID, event, pdrRepo.get(), 255 EVENTS_JSONS_DIR, entityTree.get(), bmcEntityTree.get(), 256 instanceIdDb, &reqHandler); 257 258 // HostFirmware interface needs access to hostPDR to know if host 259 // is running 260 dbusImplHost.setHostPdrObj(hostPDRHandler); 261 262 dbusToPLDMEventHandler = std::make_unique<DbusToPLDMEvent>( 263 pldmTransport.getEventSource(), hostEID, instanceIdDb, &reqHandler); 264 } 265 266 auto fruHandler = std::make_unique<fru::Handler>( 267 FRU_JSONS_DIR, FRU_MASTER_JSON, pdrRepo.get(), entityTree.get(), 268 bmcEntityTree.get()); 269 270 // FRU table is built lazily when a FRU command or Get PDR command is 271 // handled. To enable building FRU table, the FRU handler is passed to the 272 // Platform handler. 273 auto platformHandler = std::make_unique<platform::Handler>( 274 &dbusHandler, hostEID, &instanceIdDb, PDR_JSONS_DIR, pdrRepo.get(), 275 hostPDRHandler.get(), dbusToPLDMEventHandler.get(), fruHandler.get(), 276 platformConfigHandler.get(), &reqHandler, event, true); 277 278 auto biosHandler = std::make_unique<bios::Handler>( 279 pldmTransport.getEventSource(), hostEID, &instanceIdDb, &reqHandler, 280 platformConfigHandler.get(), requestPLDMServiceName); 281 282 auto baseHandler = std::make_unique<base::Handler>(event); 283 284 #ifdef OEM_IBM 285 pldm::oem_ibm::OemIBM oemIBM( 286 &dbusHandler, pldmTransport.getEventSource(), hostEID, pdrRepo.get(), 287 instanceIdDb, event, invoker, hostPDRHandler.get(), 288 platformHandler.get(), fruHandler.get(), baseHandler.get(), 289 &reqHandler); 290 #endif 291 292 invoker.registerHandler(PLDM_BIOS, std::move(biosHandler)); 293 invoker.registerHandler(PLDM_PLATFORM, std::move(platformHandler)); 294 invoker.registerHandler(PLDM_FRU, std::move(fruHandler)); 295 invoker.registerHandler(PLDM_BASE, std::move(baseHandler)); 296 297 dbus_api::Pdr dbusImplPdr(bus, "/xyz/openbmc_project/pldm", pdrRepo.get()); 298 sdbusplus::xyz::openbmc_project::PLDM::server::Event dbusImplEvent( 299 bus, "/xyz/openbmc_project/pldm"); 300 301 #endif 302 303 std::unique_ptr<fw_update::Manager> fwManager = 304 std::make_unique<fw_update::Manager>(event, reqHandler, instanceIdDb); 305 std::unique_ptr<platform_mc::Manager> platformManager = 306 std::make_unique<platform_mc::Manager>(event, reqHandler, instanceIdDb); 307 std::unique_ptr<MctpDiscovery> mctpDiscoveryHandler = 308 std::make_unique<MctpDiscovery>( 309 bus, std::initializer_list<MctpDiscoveryHandlerIntf*>{ 310 fwManager.get(), platformManager.get()}); 311 auto callback = [verbose, &invoker, &reqHandler, &fwManager, &pldmTransport, 312 TID](IO& io, int fd, uint32_t revents) mutable { 313 if (!(revents & EPOLLIN)) 314 { 315 return; 316 } 317 if (fd < 0) 318 { 319 return; 320 } 321 322 int returnCode = 0; 323 void* requestMsg; 324 size_t recvDataLength; 325 returnCode = pldmTransport.recvMsg(TID, requestMsg, recvDataLength); 326 327 if (returnCode == PLDM_REQUESTER_SUCCESS) 328 { 329 std::vector<uint8_t> requestMsgVec( 330 static_cast<uint8_t*>(requestMsg), 331 static_cast<uint8_t*>(requestMsg) + recvDataLength); 332 FlightRecorder::GetInstance().saveRecord(requestMsgVec, false); 333 if (verbose) 334 { 335 printBuffer(Rx, requestMsgVec); 336 } 337 // process message and send response 338 auto response = processRxMsg(requestMsgVec, invoker, reqHandler, 339 fwManager.get(), TID); 340 if (response.has_value()) 341 { 342 FlightRecorder::GetInstance().saveRecord(*response, true); 343 if (verbose) 344 { 345 printBuffer(Tx, *response); 346 } 347 348 returnCode = pldmTransport.sendMsg(TID, (*response).data(), 349 (*response).size()); 350 if (returnCode != PLDM_REQUESTER_SUCCESS) 351 { 352 warning( 353 "Failed to send pldmTransport message for TID '{TID}', response code '{RETURN_CODE}'", 354 "TID", TID, "RETURN_CODE", returnCode); 355 } 356 } 357 } 358 // TODO check that we get here if mctp-demux dies? 359 else if (returnCode == PLDM_REQUESTER_RECV_FAIL) 360 { 361 // MCTP daemon has closed the socket this daemon is connected to. 362 // This may or may not be an error scenario, in either case the 363 // recovery mechanism for this daemon is to restart, and hence exit 364 // the event loop, that will cause this daemon to exit with a 365 // failure code. 366 error( 367 "MCTP daemon closed the socket, IO exiting with response code '{RC}'", 368 "RC", returnCode); 369 io.get_event().exit(0); 370 } 371 else 372 { 373 warning( 374 "Failed to receive PLDM request for pldmTransport, response code '{RETURN_CODE}'", 375 "RETURN_CODE", returnCode); 376 } 377 /* Free requestMsg after using */ 378 free(requestMsg); 379 }; 380 381 bus.attach_event(event.get(), SD_EVENT_PRIORITY_NORMAL); 382 #ifndef SYSTEM_SPECIFIC_BIOS_JSON 383 try 384 { 385 bus.request_name(PLDMService); 386 } 387 catch (const sdbusplus::exception_t& e) 388 { 389 error("Failed to request D-Bus name {NAME} with error {ERROR}.", "NAME", 390 PLDMService, "ERROR", e); 391 } 392 #endif 393 IO io(event, pldmTransport.getEventSource(), EPOLLIN, std::move(callback)); 394 #ifdef LIBPLDMRESPONDER 395 if (hostPDRHandler) 396 { 397 hostPDRHandler->setHostFirmwareCondition(); 398 } 399 #endif 400 stdplus::signal::block(SIGUSR1); 401 sdeventplus::source::Signal sigUsr1( 402 event, SIGUSR1, std::bind_front(&interruptFlightRecorderCallBack)); 403 int returnCode = event.loop(); 404 if (returnCode) 405 { 406 exit(EXIT_FAILURE); 407 } 408 409 exit(EXIT_SUCCESS); 410 } 411