1 /* 2 // Copyright (c) 2019 Intel Corporation 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 #pragma once 17 #include <fcntl.h> 18 #include <unistd.h> 19 20 #include <cereal/access.hpp> 21 #include <cereal/archives/json.hpp> 22 #include <cereal/cereal.hpp> 23 #include <cereal/types/map.hpp> 24 #include <cereal/types/vector.hpp> 25 #include <chrono> 26 #include <experimental/filesystem> 27 #include <fstream> 28 #include <iostream> 29 #include <phosphor-logging/elog-errors.hpp> 30 #include <xyz/openbmc_project/Collection/DeleteAll/server.hpp> 31 #include <xyz/openbmc_project/Common/error.hpp> 32 #include <xyz/openbmc_project/State/Boot/PostCode/server.hpp> 33 #include <xyz/openbmc_project/State/Host/server.hpp> 34 35 #define MaxPostCodeCycles 100 36 37 const static constexpr char *PostCodePath = 38 "/xyz/openbmc_project/state/boot/raw"; 39 const static constexpr char *PropertiesIntf = "org.freedesktop.DBus.Properties"; 40 const static constexpr char *PostCodeListPath = 41 "/var/lib/phosphor-post-code-manager/"; 42 const static constexpr char *CurrentBootCycleCountName = 43 "CurrentBootCycleCount"; 44 const static constexpr char *CurrentBootCycleIndexName = 45 "CurrentBootCycleIndex"; 46 const static constexpr char *HostStatePath = "/xyz/openbmc_project/state/host0"; 47 48 struct EventDeleter 49 { 50 void operator()(sd_event *event) const 51 { 52 event = sd_event_unref(event); 53 } 54 }; 55 using EventPtr = std::unique_ptr<sd_event, EventDeleter>; 56 namespace fs = std::experimental::filesystem; 57 namespace StateServer = sdbusplus::xyz::openbmc_project::State::server; 58 59 using post_code = 60 sdbusplus::xyz::openbmc_project::State::Boot::server::PostCode; 61 using delete_all = 62 sdbusplus::xyz::openbmc_project::Collection::server::DeleteAll; 63 64 struct PostCode : sdbusplus::server::object_t<post_code, delete_all> 65 { 66 PostCode(sdbusplus::bus::bus &bus, const char *path, EventPtr &event) : 67 sdbusplus::server::object_t<post_code, delete_all>(bus, path), bus(bus), 68 propertiesChangedSignalRaw( 69 bus, 70 sdbusplus::bus::match::rules::type::signal() + 71 sdbusplus::bus::match::rules::member("PropertiesChanged") + 72 sdbusplus::bus::match::rules::path(PostCodePath) + 73 sdbusplus::bus::match::rules::interface(PropertiesIntf), 74 [this](sdbusplus::message::message &msg) { 75 std::string objectName; 76 std::map<std::string, std::variant<uint64_t>> msgData; 77 msg.read(objectName, msgData); 78 // Check if it was the Value property that changed. 79 auto valPropMap = msgData.find("Value"); 80 { 81 if (valPropMap != msgData.end()) 82 { 83 this->savePostCodes( 84 std::get<uint64_t>(valPropMap->second)); 85 } 86 } 87 }), 88 propertiesChangedSignalCurrentHostState( 89 bus, 90 sdbusplus::bus::match::rules::type::signal() + 91 sdbusplus::bus::match::rules::member("PropertiesChanged") + 92 sdbusplus::bus::match::rules::path(HostStatePath) + 93 sdbusplus::bus::match::rules::interface(PropertiesIntf), 94 [this](sdbusplus::message::message &msg) { 95 std::string objectName; 96 std::map<std::string, std::variant<std::string>> msgData; 97 msg.read(objectName, msgData); 98 // Check if it was the Value property that changed. 99 auto valPropMap = msgData.find("CurrentHostState"); 100 { 101 if (valPropMap != msgData.end()) 102 { 103 StateServer::Host::HostState currentHostState = 104 StateServer::Host::convertHostStateFromString( 105 std::get<std::string>(valPropMap->second)); 106 if (currentHostState == 107 StateServer::Host::HostState::Off) 108 { 109 if (this->postCodes.empty()) 110 { 111 std::cerr << "HostState changed to OFF. Empty " 112 "postcode log, keep boot cycle at " 113 << this->currentBootCycleIndex 114 << std::endl; 115 } 116 else 117 { 118 this->postCodes.clear(); 119 } 120 } 121 } 122 } 123 }) 124 { 125 phosphor::logging::log<phosphor::logging::level::INFO>( 126 "PostCode is created"); 127 auto dir = fs::path(PostCodeListPath); 128 fs::create_directories(dir); 129 strPostCodeListPath = PostCodeListPath; 130 strCurrentBootCycleIndexName = CurrentBootCycleIndexName; 131 uint16_t index = 0; 132 deserialize( 133 fs::path(strPostCodeListPath + strCurrentBootCycleIndexName), 134 index); 135 currentBootCycleIndex = index; 136 strCurrentBootCycleCountName = CurrentBootCycleCountName; 137 uint16_t count = 0; 138 deserialize( 139 fs::path(strPostCodeListPath + strCurrentBootCycleCountName), 140 count); 141 currentBootCycleCount(count); 142 maxBootCycleNum(MaxPostCodeCycles); 143 } 144 ~PostCode() 145 { 146 } 147 148 std::vector<uint64_t> getPostCodes(uint16_t index) override; 149 std::map<uint64_t, uint64_t> 150 getPostCodesWithTimeStamp(uint16_t index) override; 151 void deleteAll() override; 152 153 private: 154 void incrBootCycle(); 155 uint16_t getBootNum(const uint16_t index) const; 156 157 sdbusplus::bus::bus &bus; 158 std::chrono::time_point<std::chrono::steady_clock> firstPostCodeTimeSteady; 159 uint64_t firstPostCodeUsSinceEpoch; 160 std::map<uint64_t, uint64_t> postCodes; 161 std::string strPostCodeListPath; 162 std::string strCurrentBootCycleIndexName; 163 uint16_t currentBootCycleIndex; 164 std::string strCurrentBootCycleCountName; 165 void savePostCodes(uint64_t code); 166 sdbusplus::bus::match_t propertiesChangedSignalRaw; 167 sdbusplus::bus::match_t propertiesChangedSignalCurrentHostState; 168 fs::path serialize(const std::string &path); 169 bool deserialize(const fs::path &path, uint16_t &index); 170 bool deserializePostCodes(const fs::path &path, 171 std::map<uint64_t, uint64_t> &codes); 172 }; 173