1 // Copyright 2024 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include "bm_instance.hpp" 16 17 #include "commands.hpp" 18 #include "errors.hpp" 19 #include "handler.hpp" 20 21 #include <ipmid/api-types.hpp> 22 #include <stdplus/print.hpp> 23 24 #include <span> 25 #include <vector> 26 27 namespace google 28 { 29 namespace ipmi 30 { 31 32 namespace 33 { 34 #ifndef MAX_IPMI_BUFFER 35 #define MAX_IPMI_BUFFER 64 36 #endif 37 } // namespace 38 39 struct BMInstancePropertyRequest 40 { 41 std::uint8_t bmInstancePropertyType; 42 } __attribute__((packed)); 43 getBMInstanceProperty(std::span<const uint8_t> data,HandlerInterface * handler)44 Resp getBMInstanceProperty(std::span<const uint8_t> data, 45 HandlerInterface* handler) 46 { 47 if (data.size() < sizeof(struct BMInstancePropertyRequest)) 48 { 49 stdplus::print(stderr, "Invalid command length: {}\n", 50 static_cast<uint32_t>(data.size())); 51 return ::ipmi::responseReqDataLenInvalid(); 52 } 53 54 std::string bmInstanceProperty = 55 handler->getBMInstanceProperty(/*type=*/data[0]); 56 57 const size_t length = 58 sizeof(struct BMInstancePropertyReply) + bmInstanceProperty.size(); 59 60 if (length > MAX_IPMI_BUFFER) 61 { 62 stdplus::print(stderr, "Response would overflow response buffer\n"); 63 return ::ipmi::responseInvalidCommand(); 64 } 65 66 std::vector<std::uint8_t> reply; 67 reply.reserve(length); 68 reply.emplace_back(bmInstanceProperty.size()); 69 reply.insert(reply.end(), bmInstanceProperty.begin(), 70 bmInstanceProperty.end()); 71 72 return ::ipmi::responseSuccess(SysOEMCommands::SysGetBMInstanceProperty, 73 reply); 74 } 75 } // namespace ipmi 76 } // namespace google 77