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 "updater.hpp" 18 19 #include "tool_errors.hpp" 20 21 #include <algorithm> 22 #include <blobs-ipmid/blobs.hpp> 23 #include <cstring> 24 #include <ipmiblob/blob_errors.hpp> 25 #include <memory> 26 #include <string> 27 28 namespace host_tool 29 { 30 31 void updaterMain(ipmiblob::BlobInterface* blob, DataInterface* handler, 32 const std::string& imagePath, const std::string& signaturePath) 33 { 34 /* TODO(venture): Add optional parameter to specify the flash type, default 35 * to legacy for now. 36 */ 37 std::string goalFirmware = "/flash/image"; 38 std::string hashFilename = "/flash/hash"; 39 40 /* Get list of blob_ids, check for /flash/image, or /flash/tarball. 41 * TODO(venture) the mechanism doesn't care, but the caller of burn_my_bmc 42 * will have in mind which they're sending and we need to verify it's 43 * available and use it. 44 */ 45 std::vector<std::string> blobs = blob->getBlobList(); 46 auto blobInst = std::find_if( 47 blobs.begin(), blobs.end(), [&goalFirmware](const std::string& iter) { 48 /* Running into weird scenarios where the string comparison doesn't 49 * work. TODO: revisit. 50 */ 51 return (0 == std::memcmp(goalFirmware.c_str(), iter.c_str(), 52 goalFirmware.length())); 53 // return (goalFirmware.compare(iter)); 54 }); 55 if (blobInst == blobs.end()) 56 { 57 throw ToolException(goalFirmware + " not found"); 58 } 59 60 /* Call stat on /flash/image (or /flash/tarball) and check if data interface 61 * is supported. 62 */ 63 ipmiblob::StatResponse stat; 64 try 65 { 66 stat = blob->getStat(goalFirmware); 67 } 68 catch (const ipmiblob::BlobException& b) 69 { 70 throw ToolException("blob exception received: " + 71 std::string(b.what())); 72 } 73 74 auto supported = handler->supportedType(); 75 if ((stat.blob_state & supported) == 0) 76 { 77 throw ToolException("data interface selected not supported."); 78 } 79 80 /* Yay, our data handler is supported. */ 81 82 /* Send over the firmware image. */ 83 std::fprintf(stderr, "Sending over the firmware image.\n"); 84 std::uint16_t session; 85 try 86 { 87 session = blob->openBlob( 88 goalFirmware, 89 static_cast<std::uint16_t>(supported) | 90 static_cast<std::uint16_t>(blobs::OpenFlags::write)); 91 } 92 catch (const ipmiblob::BlobException& b) 93 { 94 throw ToolException("blob exception received: " + 95 std::string(b.what())); 96 } 97 98 if (!handler->sendContents(imagePath, session)) 99 { 100 /* Need to close the session on failure, or it's stuck open (until the 101 * blob handler timeout is implemented, and even then, why make it wait. 102 */ 103 blob->closeBlob(session); 104 throw ToolException("Failed to send contents of " + imagePath); 105 } 106 107 blob->closeBlob(session); 108 109 /* Send over the hash contents. */ 110 std::fprintf(stderr, "Sending over the hash file.\n"); 111 try 112 { 113 session = blob->openBlob( 114 hashFilename, 115 static_cast<std::uint16_t>(supported) | 116 static_cast<std::uint16_t>(blobs::OpenFlags::write)); 117 } 118 catch (const ipmiblob::BlobException& b) 119 { 120 throw ToolException("blob exception received: " + 121 std::string(b.what())); 122 } 123 124 if (!handler->sendContents(signaturePath, session)) 125 { 126 blob->closeBlob(session); 127 throw ToolException("Failed to send contents of " + signaturePath); 128 } 129 130 blob->closeBlob(session); 131 132 /* Trigger the verification. */ 133 /* Check the verification. */ 134 135 return; 136 } 137 138 } // namespace host_tool 139