1 #pragma once 2 3 #include "config.h" 4 5 #include "callouts-gen.hpp" 6 #include "elog_entry.hpp" 7 8 #include <algorithm> 9 #include <cstring> 10 #include <phosphor-logging/elog-errors.hpp> 11 #include <string> 12 #include <tuple> 13 #include <vector> 14 15 namespace phosphor 16 { 17 namespace logging 18 { 19 namespace metadata 20 { 21 22 using Metadata = std::string; 23 24 namespace associations 25 { 26 27 using Type = void(const std::string&, const std::vector<std::string>&, 28 AssociationList& list); 29 30 /** @brief Pull out metadata name and value from the string 31 * <metadata name>=<metadata value> 32 * @param [in] data - metadata key=value entries 33 * @param [out] metadata - map of metadata name:value 34 */ 35 inline void parse(const std::vector<std::string>& data, 36 std::map<std::string, std::string>& metadata) 37 { 38 constexpr auto separator = '='; 39 for (const auto& entryItem : data) 40 { 41 auto pos = entryItem.find(separator); 42 if (std::string::npos != pos) 43 { 44 auto key = entryItem.substr(0, entryItem.find(separator)); 45 auto value = entryItem.substr(entryItem.find(separator) + 1); 46 metadata.emplace(std::move(key), std::move(value)); 47 } 48 } 49 } 50 51 /** @brief Combine the metadata keys and values from the map 52 * into a vector of strings that look like: 53 * "<metadata name>=<metadata value>" 54 * @param [in] data - metadata key:value map 55 * @param [out] metadata - vector of "key=value" strings 56 */ 57 inline void combine(const std::map<std::string, std::string>& data, 58 std::vector<std::string>& metadata) 59 { 60 for (const auto& [key, value] : data) 61 { 62 std::string line{key}; 63 line += "=" + value; 64 metadata.push_back(std::move(line)); 65 } 66 } 67 68 /** @brief Build error associations specific to metadata. Specialize this 69 * template for handling a specific type of metadata. 70 * @tparam M - type of metadata 71 * @param [in] match - metadata to be handled 72 * @param [in] data - metadata key=value entries 73 * @param [out] list - list of error association objects 74 */ 75 template <typename M> 76 void build(const std::string& match, const std::vector<std::string>& data, 77 AssociationList& list) = delete; 78 79 // Example template specialization - we don't want to do anything 80 // for this metadata. 81 using namespace example::xyz::openbmc_project::Example::Elog; 82 template <> 83 inline void 84 build<TestErrorTwo::DEV_ID>(const std::string& /*match*/, 85 const std::vector<std::string>& /*data*/, 86 AssociationList& /*list*/) 87 { 88 } 89 90 template <> 91 inline void 92 build<example::xyz::openbmc_project::Example::Device::Callout:: 93 CALLOUT_DEVICE_PATH_TEST>(const std::string& match, 94 const std::vector<std::string>& data, 95 AssociationList& list) 96 { 97 std::map<std::string, std::string> metadata; 98 parse(data, metadata); 99 auto iter = metadata.find(match); 100 if (metadata.end() != iter) 101 { 102 auto comp = [](const auto& first, const auto& second) { 103 return (std::strcmp(std::get<0>(first), second) < 0); 104 }; 105 auto callout = std::lower_bound(callouts.begin(), callouts.end(), 106 (iter->second).c_str(), comp); 107 if ((callouts.end() != callout) && 108 !std::strcmp((iter->second).c_str(), std::get<0>(*callout))) 109 { 110 constexpr auto ROOT = "/xyz/openbmc_project/inventory"; 111 112 list.push_back(std::make_tuple( 113 "callout", "fault", std::string(ROOT) + std::get<1>(*callout))); 114 } 115 } 116 } 117 118 // The PROCESS_META flag is needed to get out of tree builds working. Such 119 // builds will have access only to internal error interfaces, hence handlers 120 // for out dbus error interfaces won't compile. This flag is not set by default, 121 // the phosphor-logging recipe enabled it. 122 #if defined PROCESS_META 123 124 template <> 125 void build<xyz::openbmc_project::Common::Callout::Device::CALLOUT_DEVICE_PATH>( 126 const std::string& match, const std::vector<std::string>& data, 127 AssociationList& list); 128 129 template <> 130 void build< 131 xyz::openbmc_project::Common::Callout::Inventory::CALLOUT_INVENTORY_PATH>( 132 const std::string& match, const std::vector<std::string>& data, 133 AssociationList& list); 134 135 #endif // PROCESS_META 136 137 } // namespace associations 138 } // namespace metadata 139 } // namespace logging 140 } // namespace phosphor 141