1 #include "libpldm/base.h" 2 #include "libpldm/bios.h" 3 #include "libpldm/pdr.h" 4 #include "libpldm/platform.h" 5 6 #include "common/flight_recorder.hpp" 7 #include "common/utils.hpp" 8 #include "dbus_impl_requester.hpp" 9 #include "fw-update/manager.hpp" 10 #include "invoker.hpp" 11 #include "requester/handler.hpp" 12 #include "requester/mctp_endpoint_discovery.hpp" 13 #include "requester/request.hpp" 14 15 #include <err.h> 16 #include <getopt.h> 17 #include <poll.h> 18 #include <stdlib.h> 19 #include <sys/socket.h> 20 #include <sys/types.h> 21 #include <sys/un.h> 22 #include <unistd.h> 23 24 #include <sdeventplus/event.hpp> 25 #include <sdeventplus/source/io.hpp> 26 #include <sdeventplus/source/signal.hpp> 27 #include <stdplus/signal.hpp> 28 29 #include <cstdio> 30 #include <cstring> 31 #include <fstream> 32 #include <iomanip> 33 #include <iostream> 34 #include <iterator> 35 #include <memory> 36 #include <optional> 37 #include <sstream> 38 #include <stdexcept> 39 #include <string> 40 #include <vector> 41 42 #ifdef LIBPLDMRESPONDER 43 #include "dbus_impl_pdr.hpp" 44 #include "host-bmc/dbus_to_event_handler.hpp" 45 #include "host-bmc/dbus_to_host_effecters.hpp" 46 #include "host-bmc/host_condition.hpp" 47 #include "host-bmc/host_pdr_handler.hpp" 48 #include "libpldmresponder/base.hpp" 49 #include "libpldmresponder/bios.hpp" 50 #include "libpldmresponder/fru.hpp" 51 #include "libpldmresponder/oem_handler.hpp" 52 #include "libpldmresponder/platform.hpp" 53 #include "xyz/openbmc_project/PLDM/Event/server.hpp" 54 #endif 55 56 #ifdef OEM_IBM 57 #include "libpldmresponder/file_io.hpp" 58 #include "libpldmresponder/oem_ibm_handler.hpp" 59 #endif 60 61 constexpr uint8_t MCTP_MSG_TYPE_PLDM = 1; 62 63 using namespace pldm; 64 using namespace sdeventplus; 65 using namespace sdeventplus::source; 66 using namespace pldm::responder; 67 using namespace pldm::utils; 68 using sdeventplus::source::Signal; 69 using namespace pldm::flightrecorder; 70 71 void interruptFlightRecorderCallBack(Signal& /*signal*/, 72 const struct signalfd_siginfo*) 73 { 74 std::cerr << "\nReceived SIGUR1(10) Signal interrupt\n"; 75 76 // obtain the flight recorder instance and dump the recorder 77 FlightRecorder::GetInstance().playRecorder(); 78 } 79 80 static std::optional<Response> 81 processRxMsg(const std::vector<uint8_t>& requestMsg, Invoker& invoker, 82 requester::Handler<requester::Request>& handler, 83 fw_update::Manager* fwManager) 84 { 85 using type = uint8_t; 86 uint8_t eid = requestMsg[0]; 87 pldm_header_info hdrFields{}; 88 auto hdr = reinterpret_cast<const pldm_msg_hdr*>( 89 requestMsg.data() + sizeof(eid) + sizeof(type)); 90 if (PLDM_SUCCESS != unpack_pldm_header(hdr, &hdrFields)) 91 { 92 std::cerr << "Empty PLDM request header \n"; 93 return std::nullopt; 94 } 95 96 if (PLDM_RESPONSE != hdrFields.msg_type) 97 { 98 Response response; 99 auto request = reinterpret_cast<const pldm_msg*>(hdr); 100 size_t requestLen = requestMsg.size() - sizeof(struct pldm_msg_hdr) - 101 sizeof(eid) - sizeof(type); 102 try 103 { 104 if (hdrFields.pldm_type != PLDM_FWUP) 105 { 106 response = 107 invoker.handle(hdrFields.pldm_type, hdrFields.command, 108 request, requestLen); 109 } 110 else 111 { 112 response = fwManager->handleRequest(eid, hdrFields.command, 113 request, requestLen); 114 } 115 } 116 catch (const std::out_of_range& e) 117 { 118 uint8_t completion_code = PLDM_ERROR_UNSUPPORTED_PLDM_CMD; 119 response.resize(sizeof(pldm_msg_hdr)); 120 auto responseHdr = reinterpret_cast<pldm_msg_hdr*>(response.data()); 121 pldm_header_info header{}; 122 header.msg_type = PLDM_RESPONSE; 123 header.instance = hdrFields.instance; 124 header.pldm_type = hdrFields.pldm_type; 125 header.command = hdrFields.command; 126 if (PLDM_SUCCESS != pack_pldm_header(&header, responseHdr)) 127 { 128 std::cerr << "Failed adding response header \n"; 129 return std::nullopt; 130 } 131 response.insert(response.end(), completion_code); 132 } 133 return response; 134 } 135 else if (PLDM_RESPONSE == hdrFields.msg_type) 136 { 137 auto response = reinterpret_cast<const pldm_msg*>(hdr); 138 size_t responseLen = requestMsg.size() - sizeof(struct pldm_msg_hdr) - 139 sizeof(eid) - sizeof(type); 140 handler.handleResponse(eid, hdrFields.instance, hdrFields.pldm_type, 141 hdrFields.command, response, responseLen); 142 } 143 return std::nullopt; 144 } 145 146 void optionUsage(void) 147 { 148 std::cerr << "Usage: pldmd [options]\n"; 149 std::cerr << "Options:\n"; 150 std::cerr 151 << " --verbose=<0/1> 0 - Disable verbosity, 1 - Enable verbosity\n"; 152 std::cerr << "Defaulted settings: --verbose=0 \n"; 153 } 154 155 int main(int argc, char** argv) 156 { 157 158 bool verbose = false; 159 static struct option long_options[] = { 160 {"verbose", required_argument, 0, 'v'}, {0, 0, 0, 0}}; 161 162 auto argflag = getopt_long(argc, argv, "v:", long_options, nullptr); 163 switch (argflag) 164 { 165 case 'v': 166 switch (std::stoi(optarg)) 167 { 168 case 0: 169 verbose = false; 170 break; 171 case 1: 172 verbose = true; 173 break; 174 default: 175 optionUsage(); 176 exit(EXIT_FAILURE); 177 } 178 break; 179 case -1: 180 break; 181 default: 182 exit(EXIT_FAILURE); 183 } 184 185 /* Create local socket. */ 186 int returnCode = 0; 187 int sockfd = socket(AF_UNIX, SOCK_SEQPACKET, 0); 188 if (-1 == sockfd) 189 { 190 returnCode = -errno; 191 std::cerr << "Failed to create the socket, RC= " << returnCode << "\n"; 192 exit(EXIT_FAILURE); 193 } 194 socklen_t optlen; 195 int currentSendbuffSize; 196 197 // Get Current send buffer size 198 optlen = sizeof(currentSendbuffSize); 199 200 int res = getsockopt(sockfd, SOL_SOCKET, SO_SNDBUF, ¤tSendbuffSize, 201 &optlen); 202 if (res == -1) 203 { 204 std::cerr << "Error in obtaining the default send buffer size, Error : " 205 << strerror(errno) << std::endl; 206 } 207 auto event = Event::get_default(); 208 auto& bus = pldm::utils::DBusHandler::getBus(); 209 sdbusplus::server::manager::manager objManager( 210 bus, "/xyz/openbmc_project/software"); 211 dbus_api::Requester dbusImplReq(bus, "/xyz/openbmc_project/pldm"); 212 213 Invoker invoker{}; 214 requester::Handler<requester::Request> reqHandler( 215 sockfd, event, dbusImplReq, currentSendbuffSize, verbose); 216 217 #ifdef LIBPLDMRESPONDER 218 using namespace pldm::state_sensor; 219 dbus_api::Host dbusImplHost(bus, "/xyz/openbmc_project/pldm"); 220 std::unique_ptr<pldm_pdr, decltype(&pldm_pdr_destroy)> pdrRepo( 221 pldm_pdr_init(), pldm_pdr_destroy); 222 std::unique_ptr<pldm_entity_association_tree, 223 decltype(&pldm_entity_association_tree_destroy)> 224 entityTree(pldm_entity_association_tree_init(), 225 pldm_entity_association_tree_destroy); 226 std::unique_ptr<pldm_entity_association_tree, 227 decltype(&pldm_entity_association_tree_destroy)> 228 bmcEntityTree(pldm_entity_association_tree_init(), 229 pldm_entity_association_tree_destroy); 230 std::shared_ptr<HostPDRHandler> hostPDRHandler; 231 std::unique_ptr<pldm::host_effecters::HostEffecterParser> 232 hostEffecterParser; 233 std::unique_ptr<DbusToPLDMEvent> dbusToPLDMEventHandler; 234 DBusHandler dbusHandler; 235 auto hostEID = pldm::utils::readHostEID(); 236 if (hostEID) 237 { 238 hostPDRHandler = std::make_shared<HostPDRHandler>( 239 sockfd, hostEID, event, pdrRepo.get(), EVENTS_JSONS_DIR, 240 entityTree.get(), bmcEntityTree.get(), dbusImplReq, &reqHandler); 241 // HostFirmware interface needs access to hostPDR to know if host 242 // is running 243 dbusImplHost.setHostPdrObj(hostPDRHandler); 244 245 hostEffecterParser = 246 std::make_unique<pldm::host_effecters::HostEffecterParser>( 247 &dbusImplReq, sockfd, pdrRepo.get(), &dbusHandler, 248 HOST_JSONS_DIR, &reqHandler); 249 dbusToPLDMEventHandler = std::make_unique<DbusToPLDMEvent>( 250 sockfd, hostEID, dbusImplReq, &reqHandler); 251 } 252 std::unique_ptr<oem_platform::Handler> oemPlatformHandler{}; 253 254 #ifdef OEM_IBM 255 std::unique_ptr<pldm::responder::CodeUpdate> codeUpdate = 256 std::make_unique<pldm::responder::CodeUpdate>(&dbusHandler); 257 codeUpdate->clearDirPath(LID_STAGING_DIR); 258 oemPlatformHandler = std::make_unique<oem_ibm_platform::Handler>( 259 &dbusHandler, codeUpdate.get(), sockfd, hostEID, dbusImplReq, event, 260 &reqHandler); 261 codeUpdate->setOemPlatformHandler(oemPlatformHandler.get()); 262 invoker.registerHandler(PLDM_OEM, std::make_unique<oem_ibm::Handler>( 263 oemPlatformHandler.get(), sockfd, 264 hostEID, &dbusImplReq, &reqHandler)); 265 #endif 266 invoker.registerHandler( 267 PLDM_BIOS, std::make_unique<bios::Handler>(sockfd, hostEID, 268 &dbusImplReq, &reqHandler)); 269 auto fruHandler = std::make_unique<fru::Handler>( 270 FRU_JSONS_DIR, FRU_MASTER_JSON, pdrRepo.get(), entityTree.get(), 271 bmcEntityTree.get()); 272 // FRU table is built lazily when a FRU command or Get PDR command is 273 // handled. To enable building FRU table, the FRU handler is passed to the 274 // Platform handler. 275 auto platformHandler = std::make_unique<platform::Handler>( 276 &dbusHandler, PDR_JSONS_DIR, pdrRepo.get(), hostPDRHandler.get(), 277 dbusToPLDMEventHandler.get(), fruHandler.get(), 278 oemPlatformHandler.get(), event, true); 279 #ifdef OEM_IBM 280 pldm::responder::oem_ibm_platform::Handler* oemIbmPlatformHandler = 281 dynamic_cast<pldm::responder::oem_ibm_platform::Handler*>( 282 oemPlatformHandler.get()); 283 oemIbmPlatformHandler->setPlatformHandler(platformHandler.get()); 284 #endif 285 286 invoker.registerHandler(PLDM_PLATFORM, std::move(platformHandler)); 287 invoker.registerHandler( 288 PLDM_BASE, 289 std::make_unique<base::Handler>(hostEID, dbusImplReq, event, 290 oemPlatformHandler.get(), &reqHandler)); 291 invoker.registerHandler(PLDM_FRU, std::move(fruHandler)); 292 dbus_api::Pdr dbusImplPdr(bus, "/xyz/openbmc_project/pldm", pdrRepo.get()); 293 sdbusplus::xyz::openbmc_project::PLDM::server::Event dbusImplEvent( 294 bus, "/xyz/openbmc_project/pldm"); 295 296 #endif 297 298 pldm::utils::CustomFD socketFd(sockfd); 299 300 struct sockaddr_un addr 301 {}; 302 addr.sun_family = AF_UNIX; 303 const char path[] = "\0mctp-mux"; 304 memcpy(addr.sun_path, path, sizeof(path) - 1); 305 int result = connect(socketFd(), reinterpret_cast<struct sockaddr*>(&addr), 306 sizeof(path) + sizeof(addr.sun_family) - 1); 307 if (-1 == result) 308 { 309 returnCode = -errno; 310 std::cerr << "Failed to connect to the socket, RC= " << returnCode 311 << "\n"; 312 exit(EXIT_FAILURE); 313 } 314 315 result = write(socketFd(), &MCTP_MSG_TYPE_PLDM, sizeof(MCTP_MSG_TYPE_PLDM)); 316 if (-1 == result) 317 { 318 returnCode = -errno; 319 std::cerr << "Failed to send message type as pldm to mctp, RC= " 320 << returnCode << "\n"; 321 exit(EXIT_FAILURE); 322 } 323 324 std::unique_ptr<fw_update::Manager> fwManager = 325 std::make_unique<fw_update::Manager>(event, reqHandler, dbusImplReq); 326 std::unique_ptr<MctpDiscovery> mctpDiscoveryHandler = 327 std::make_unique<MctpDiscovery>(bus, fwManager.get()); 328 329 auto callback = [verbose, &invoker, &reqHandler, currentSendbuffSize, 330 &fwManager](IO& io, int fd, uint32_t revents) mutable { 331 if (!(revents & EPOLLIN)) 332 { 333 return; 334 } 335 336 // Outgoing message. 337 struct iovec iov[2]{}; 338 339 // This structure contains the parameter information for the response 340 // message. 341 struct msghdr msg 342 {}; 343 344 int returnCode = 0; 345 ssize_t peekedLength = recv(fd, nullptr, 0, MSG_PEEK | MSG_TRUNC); 346 if (0 == peekedLength) 347 { 348 // MCTP daemon has closed the socket this daemon is connected to. 349 // This may or may not be an error scenario, in either case the 350 // recovery mechanism for this daemon is to restart, and hence exit 351 // the event loop, that will cause this daemon to exit with a 352 // failure code. 353 io.get_event().exit(0); 354 } 355 else if (peekedLength <= -1) 356 { 357 returnCode = -errno; 358 std::cerr << "recv system call failed, RC= " << returnCode << "\n"; 359 } 360 else 361 { 362 std::vector<uint8_t> requestMsg(peekedLength); 363 auto recvDataLength = recv( 364 fd, static_cast<void*>(requestMsg.data()), peekedLength, 0); 365 if (recvDataLength == peekedLength) 366 { 367 FlightRecorder::GetInstance().saveRecord(requestMsg, false); 368 if (verbose) 369 { 370 printBuffer(Rx, requestMsg); 371 } 372 373 if (MCTP_MSG_TYPE_PLDM != requestMsg[1]) 374 { 375 // Skip this message and continue. 376 } 377 else 378 { 379 // process message and send response 380 auto response = processRxMsg(requestMsg, invoker, 381 reqHandler, fwManager.get()); 382 if (response.has_value()) 383 { 384 FlightRecorder::GetInstance().saveRecord(*response, 385 true); 386 if (verbose) 387 { 388 printBuffer(Tx, *response); 389 } 390 391 iov[0].iov_base = &requestMsg[0]; 392 iov[0].iov_len = 393 sizeof(requestMsg[0]) + sizeof(requestMsg[1]); 394 iov[1].iov_base = (*response).data(); 395 iov[1].iov_len = (*response).size(); 396 397 msg.msg_iov = iov; 398 msg.msg_iovlen = sizeof(iov) / sizeof(iov[0]); 399 if (currentSendbuffSize >= 0 && 400 (size_t)currentSendbuffSize < (*response).size()) 401 { 402 int oldBuffSize = currentSendbuffSize; 403 currentSendbuffSize = (*response).size(); 404 int res = setsockopt(fd, SOL_SOCKET, SO_SNDBUF, 405 ¤tSendbuffSize, 406 sizeof(currentSendbuffSize)); 407 if (res == -1) 408 { 409 std::cerr 410 << "Responder : Failed to set the new send buffer size [bytes] : " 411 << currentSendbuffSize 412 << " from current size [bytes] : " 413 << oldBuffSize 414 << ", Error : " << strerror(errno) 415 << std::endl; 416 return; 417 } 418 } 419 420 int result = sendmsg(fd, &msg, 0); 421 if (-1 == result) 422 { 423 returnCode = -errno; 424 std::cerr << "sendto system call failed, RC= " 425 << returnCode << "\n"; 426 } 427 } 428 } 429 } 430 else 431 { 432 std::cerr 433 << "Failure to read peeked length packet. peekedLength= " 434 << peekedLength << " recvDataLength=" << recvDataLength 435 << "\n"; 436 } 437 } 438 }; 439 440 bus.attach_event(event.get(), SD_EVENT_PRIORITY_NORMAL); 441 bus.request_name("xyz.openbmc_project.PLDM"); 442 IO io(event, socketFd(), EPOLLIN, std::move(callback)); 443 #ifdef LIBPLDMRESPONDER 444 if (hostPDRHandler) 445 { 446 hostPDRHandler->setHostFirmwareCondition(); 447 } 448 #endif 449 stdplus::signal::block(SIGUSR1); 450 sdeventplus::source::Signal sigUsr1( 451 event, SIGUSR1, std::bind_front(&interruptFlightRecorderCallBack)); 452 returnCode = event.loop(); 453 454 if (shutdown(sockfd, SHUT_RDWR)) 455 { 456 std::perror("Failed to shutdown the socket"); 457 } 458 if (returnCode) 459 { 460 exit(EXIT_FAILURE); 461 } 462 463 exit(EXIT_SUCCESS); 464 } 465