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