1 /* 2 * Copyright 2018 Google Inc. 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 #include "config.h" 18 19 #include "ipmi.hpp" 20 #include "process.hpp" 21 #include "utils.hpp" 22 23 #include <host-ipmid/ipmid-api.h> 24 25 #include <blobs-ipmid/manager.hpp> 26 #include <cstdio> 27 #include <host-ipmid/iana.hpp> 28 #include <host-ipmid/oemopenbmc.hpp> 29 #include <host-ipmid/oemrouter.hpp> 30 #include <memory> 31 #include <phosphor-logging/log.hpp> 32 33 namespace blobs 34 { 35 36 using namespace phosphor::logging; 37 38 static ipmi_ret_t handleBlobCommand(ipmi_cmd_t cmd, const uint8_t* reqBuf, 39 uint8_t* replyCmdBuf, size_t* dataLen) 40 { 41 /* It's holding at least a sub-command. The OEN is trimmed from the bytes 42 * before this is called. 43 */ 44 if ((*dataLen) < 1) 45 { 46 return IPMI_CC_REQ_DATA_LEN_INVALID; 47 } 48 49 /* on failure rc is set to the corresponding IPMI error. */ 50 ipmi_ret_t rc = IPMI_CC_OK; 51 Crc16 crc; 52 IpmiBlobHandler command = 53 validateBlobCommand(&crc, reqBuf, replyCmdBuf, dataLen, &rc); 54 if (command == nullptr) 55 { 56 return rc; 57 } 58 59 return processBlobCommand(command, getBlobManager(), &crc, reqBuf, 60 replyCmdBuf, dataLen); 61 } 62 63 /* TODO: this should come from the makefile or recipe... */ 64 constexpr auto expectedHandlerPath = "/usr/lib/blob-ipmid"; 65 66 void setupBlobGlobalHandler() __attribute__((constructor)); 67 68 void setupBlobGlobalHandler() 69 { 70 oem::Router* oemRouter = oem::mutableRouter(); 71 std::fprintf(stderr, 72 "Registering OEM:[%#08X], Cmd:[%#04X] for Blob Commands\n", 73 oem::obmcOemNumber, oem::Cmd::blobTransferCmd); 74 75 oemRouter->registerHandler(oem::obmcOemNumber, oem::Cmd::blobTransferCmd, 76 handleBlobCommand); 77 78 /* Install handlers. */ 79 try 80 { 81 loadLibraries(expectedHandlerPath); 82 } 83 catch (const std::exception& e) 84 { 85 log<level::ERR>("ERROR loading blob handlers", 86 entry("ERROR=%s", e.what())); 87 } 88 } 89 } // namespace blobs 90