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