extensions/openpower-pels/pel.cpp - openbmc/phosphor-logging - Gitiles

 /**
  * Copyright © 2019 IBM Corporation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
  * You may obtain a copy of the License at
  *
  *     http://www.apache.org/licenses/LICENSE-2.0
  *
  * Unless required by applicable law or agreed to in writing, software
  * distributed under the License is distributed on an "AS IS" BASIS,
  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
 #include "pel.hpp"

 #include "bcd_time.hpp"
 #include "extended_user_header.hpp"
 #include "failing_mtms.hpp"
 #include "json_utils.hpp"
 #include "log_id.hpp"
 #include "pel_rules.hpp"
 #include "pel_values.hpp"
 #include "section_factory.hpp"
 #include "src.hpp"
 #include "stream.hpp"
 #include "user_data_formats.hpp"

 #include <sys/stat.h>
 #include <unistd.h>

 #include <iostream>
 #include <phosphor-logging/log.hpp>

 namespace openpower
 {
 namespace pels
 {
 namespace message = openpower::pels::message;
 namespace pv = openpower::pels::pel_values;
 using namespace phosphor::logging;

 constexpr auto unknownValue = "Unknown";

 PEL::PEL(const message::Entry& regEntry, uint32_t obmcLogID, uint64_t timestamp,
          phosphor::logging::Entry::Level severity,
          const AdditionalData& additionalData, const PelFFDC& ffdcFiles,
          const DataInterfaceBase& dataIface)
 {
     std::map<std::string, std::vector<std::string>> debugData;

     _ph = std::make_unique<PrivateHeader>(regEntry.componentID, obmcLogID,
                                           timestamp);
     _uh = std::make_unique<UserHeader>(regEntry, severity, dataIface);

     auto src = std::make_unique<SRC>(regEntry, additionalData, dataIface);
     if (!src->getDebugData().empty())
     {
         // Something didn't go as planned
         debugData.emplace("SRC", src->getDebugData());
     }

     auto euh = std::make_unique<ExtendedUserHeader>(dataIface, regEntry, *src);

     _optionalSections.push_back(std::move(src));
     _optionalSections.push_back(std::move(euh));

     auto mtms = std::make_unique<FailingMTMS>(dataIface);
     _optionalSections.push_back(std::move(mtms));

     auto ud = util::makeSysInfoUserDataSection(additionalData, dataIface);
     addUserDataSection(std::move(ud));

     // Create a UserData section from AdditionalData.
     if (!additionalData.empty())
     {
         ud = util::makeADUserDataSection(additionalData);
         addUserDataSection(std::move(ud));
     }

     // Add any FFDC files into UserData sections
     for (const auto& file : ffdcFiles)
     {
         ud = util::makeFFDCuserDataSection(regEntry.componentID, file);
         if (!ud)
         {
             // Add this error into the debug data UserData section
             std::ostringstream msg;
             msg << "Could not make PEL FFDC UserData section from file"
                 << std::hex << regEntry.componentID << " " << file.subType
                 << " " << file.version;
             if (debugData.count("FFDC File"))
             {
                 debugData.at("FFDC File").push_back(msg.str());
             }
             else
             {
                 debugData.emplace("FFDC File",
                                   std::vector<std::string>{msg.str()});
             }

             continue;
         }

         addUserDataSection(std::move(ud));
     }

     // Store in the PEL any important debug data created while
     // building the PEL sections.
     if (!debugData.empty())
     {
         nlohmann::json data;
         data["PEL Internal Debug Data"] = debugData;
         ud = util::makeJSONUserDataSection(data);

         addUserDataSection(std::move(ud));

         // Also put in the journal for debug
         for (const auto& [name, data] : debugData)
         {
             for (const auto& message : data)
             {
                 std::string entry = name + ": " + message;
                 log<level::INFO>(entry.c_str());
             }
         }
     }

     _ph->setSectionCount(2 + _optionalSections.size());

     checkRulesAndFix();
 }

 PEL::PEL(std::vector<uint8_t>& data) : PEL(data, 0)
 {
 }

 PEL::PEL(std::vector<uint8_t>& data, uint32_t obmcLogID)
 {
     populateFromRawData(data, obmcLogID);
 }

 void PEL::populateFromRawData(std::vector<uint8_t>& data, uint32_t obmcLogID)
 {
     Stream pelData{data};
     _ph = std::make_unique<PrivateHeader>(pelData);
     if (obmcLogID != 0)
     {
         _ph->setOBMCLogID(obmcLogID);
     }

     _uh = std::make_unique<UserHeader>(pelData);

     // Use the section factory to create the rest of the objects
     for (size_t i = 2; i < _ph->sectionCount(); i++)
     {
         auto section = section_factory::create(pelData);
         _optionalSections.push_back(std::move(section));
     }
 }

 bool PEL::valid() const
 {
     bool valid = _ph->valid();

     if (valid)
     {
         valid = _uh->valid();
     }

     if (valid)
     {
         if (!std::all_of(_optionalSections.begin(), _optionalSections.end(),
                          [](const auto& section) { return section->valid(); }))
         {
             valid = false;
         }
     }

     return valid;
 }

 void PEL::setCommitTime()
 {
     auto now = std::chrono::system_clock::now();
     _ph->setCommitTimestamp(getBCDTime(now));
 }

 void PEL::assignID()
 {
     _ph->setID(generatePELID());
 }

 void PEL::flatten(std::vector<uint8_t>& pelBuffer) const
 {
     Stream pelData{pelBuffer};

     if (!valid())
     {
         log<level::WARNING>("Unflattening an invalid PEL");
     }

     _ph->flatten(pelData);
     _uh->flatten(pelData);

     for (auto& section : _optionalSections)
     {
         section->flatten(pelData);
     }
 }

 std::vector<uint8_t> PEL::data() const
 {
     std::vector<uint8_t> pelData;
     flatten(pelData);
     return pelData;
 }

 size_t PEL::size() const
 {
     size_t size = 0;

     if (_ph)
     {
         size += _ph->header().size;
     }

     if (_uh)
     {
         size += _uh->header().size;
     }

     for (const auto& section : _optionalSections)
     {
         size += section->header().size;
     }

     return size;
 }

 std::optional<SRC*> PEL::primarySRC() const
 {
     auto src = std::find_if(
         _optionalSections.begin(), _optionalSections.end(), [](auto& section) {
             return section->header().id ==
                    static_cast<uint16_t>(SectionID::primarySRC);
         });
     if (src != _optionalSections.end())
     {
         return static_cast<SRC*>(src->get());
     }

     return std::nullopt;
 }

 void PEL::checkRulesAndFix()
 {
     auto [actionFlags, eventType] =
         pel_rules::check(_uh->actionFlags(), _uh->eventType(), _uh->severity());

     _uh->setActionFlags(actionFlags);
     _uh->setEventType(eventType);
 }

 void PEL::printSectionInJSON(const Section& section, std::string& buf,
                              std::map<uint16_t, size_t>& pluralSections,
                              message::Registry& registry) const
 {
     char tmpB[5];
     uint8_t id[] = {static_cast<uint8_t>(section.header().id >> 8),
                     static_cast<uint8_t>(section.header().id)};
     sprintf(tmpB, "%c%c", id[0], id[1]);
     std::string sectionID(tmpB);
     std::string sectionName = pv::sectionTitles.count(sectionID)
                                   ? pv::sectionTitles.at(sectionID)
                                   : "Unknown Section";

     // Add a count if there are multiple of this type of section
     auto count = pluralSections.find(section.header().id);
     if (count != pluralSections.end())
     {
         sectionName += " " + std::to_string(count->second);
         count->second++;
     }

     if (section.valid())
     {
         auto json = (sectionID == "PS" || sectionID == "SS")
                         ? section.getJSON(registry)
                         : section.getJSON();

         buf += "\"" + sectionName + "\": {\n";

         if (json)
         {
             buf += *json + "\n},\n";
         }
         else
         {
             jsonInsert(buf, pv::sectionVer,
                        getNumberString("%d", section.header().version), 1);
             jsonInsert(buf, pv::subSection,
                        getNumberString("%d", section.header().subType), 1);
             jsonInsert(buf, pv::createdBy,
                        getNumberString("0x%X", section.header().componentID),
                        1);

             std::vector<uint8_t> data;
             Stream s{data};
             section.flatten(s);
             std::string dstr =
                 dumpHex(std::data(data) + SectionHeader::flattenedSize(),
                         data.size() - SectionHeader::flattenedSize(), 2);
             std::string jsonIndent(indentLevel, 0x20);
             buf += jsonIndent + "\"Data\": [\n";
             buf += dstr;
             buf += jsonIndent + "]\n";
             buf += "},\n";
         }
     }
     else
     {
         buf += "\n\"Invalid Section\": [\n    \"invalid\"\n],\n";
     }
 }

 std::map<uint16_t, size_t> PEL::getPluralSections() const
 {
     std::map<uint16_t, size_t> sectionCounts;

     for (const auto& section : optionalSections())
     {
         if (sectionCounts.find(section->header().id) == sectionCounts.end())
         {
             sectionCounts[section->header().id] = 1;
         }
         else
         {
             sectionCounts[section->header().id]++;
         }
     }

     std::map<uint16_t, size_t> sections;
     for (const auto& [id, count] : sectionCounts)
     {
         if (count > 1)
         {
             // Start with 0 here and printSectionInJSON()
             // will increment it as it goes.
             sections.emplace(id, 0);
         }
     }

     return sections;
 }

 void PEL::toJSON(message::Registry& registry) const
 {
     auto sections = getPluralSections();

     std::string buf = "{\n";
     printSectionInJSON(*(_ph.get()), buf, sections, registry);
     printSectionInJSON(*(_uh.get()), buf, sections, registry);
     for (auto& section : this->optionalSections())
     {
         printSectionInJSON(*(section.get()), buf, sections, registry);
     }
     buf += "}";
     std::size_t found = buf.rfind(",");
     if (found != std::string::npos)
         buf.replace(found, 1, "");
     std::cout << buf << std::endl;
 }

 bool PEL::addUserDataSection(std::unique_ptr<UserData> userData)
 {
     if (size() + userData->header().size > _maxPELSize)
     {
         if (userData->shrink(_maxPELSize - size()))
         {
             _optionalSections.push_back(std::move(userData));
         }
         else
         {
             log<level::WARNING>(
                 "Could not shrink UserData section. Dropping",
                 entry("SECTION_SIZE=%d\n", userData->header().size),
                 entry("COMPONENT_ID=0x%02X", userData->header().componentID),
                 entry("SUBTYPE=0x%X", userData->header().subType),
                 entry("VERSION=0x%X", userData->header().version));
             return false;
         }
     }
     else
     {
         _optionalSections.push_back(std::move(userData));
     }
     return true;
 }

 namespace util
 {

 std::unique_ptr<UserData> makeJSONUserDataSection(const nlohmann::json& json)
 {
     auto jsonString = json.dump();
     std::vector<uint8_t> jsonData(jsonString.begin(), jsonString.end());

     // Pad to a 4 byte boundary
     while ((jsonData.size() % 4) != 0)
     {
         jsonData.push_back(0);
     }

     return std::make_unique<UserData>(
         static_cast<uint16_t>(ComponentID::phosphorLogging),
         static_cast<uint8_t>(UserDataFormat::json),
         static_cast<uint8_t>(UserDataFormatVersion::json), jsonData);
 }

 std::unique_ptr<UserData> makeADUserDataSection(const AdditionalData& ad)
 {
     assert(!ad.empty());
     nlohmann::json json;

     // Remove the 'ESEL' entry, as it contains a full PEL in the value.
     if (ad.getValue("ESEL"))
     {
         auto newAD = ad;
         newAD.remove("ESEL");
         json = newAD.toJSON();
     }
     else
     {
         json = ad.toJSON();
     }

     return makeJSONUserDataSection(json);
 }

 void addProcessNameToJSON(nlohmann::json& json,
                           const std::optional<std::string>& pid,
                           const DataInterfaceBase& dataIface)
 {
     std::string name{unknownValue};

     try
     {
         if (pid)
         {
             auto n = dataIface.getProcessName(*pid);
             if (n)
             {
                 name = *n;
             }
         }
     }
     catch (std::exception& e)
     {
     }

     json["Process Name"] = std::move(name);
 }

 void addBMCFWVersionIDToJSON(nlohmann::json& json,
                              const DataInterfaceBase& dataIface)
 {
     auto id = dataIface.getBMCFWVersionID();
     if (id.empty())
     {
         id = unknownValue;
     }

     json["BMC Version ID"] = std::move(id);
 }

 std::string lastSegment(char separator, std::string data)
 {
     auto pos = data.find_last_of(separator);
     if (pos != std::string::npos)
     {
         data = data.substr(pos + 1);
     }

     return data;
 }

 void addStatesToJSON(nlohmann::json& json, const DataInterfaceBase& dataIface)
 {
     json["BMCState"] = lastSegment('.', dataIface.getBMCState());
     json["ChassisState"] = lastSegment('.', dataIface.getChassisState());
     json["HostState"] = lastSegment('.', dataIface.getHostState());
 }

 std::unique_ptr<UserData>
     makeSysInfoUserDataSection(const AdditionalData& ad,
                                const DataInterfaceBase& dataIface)
 {
     nlohmann::json json;

     addProcessNameToJSON(json, ad.getValue("_PID"), dataIface);
     addBMCFWVersionIDToJSON(json, dataIface);
     addStatesToJSON(json, dataIface);

     return makeJSONUserDataSection(json);
 }

 std::vector<uint8_t> readFD(int fd)
 {
     std::vector<uint8_t> data;

     // Get the size
     struct stat s;
     int r = fstat(fd, &s);
     if (r != 0)
     {
         auto e = errno;
         log<level::ERR>("Could not get FFDC file size from FD",
                         entry("ERRNO=%d", e));
         return data;
     }

     if (0 == s.st_size)
     {
         log<level::ERR>("FFDC file is empty");
         return data;
     }

     data.resize(s.st_size);

     // Make sure its at the beginning, as maybe another
     // extension already used it.
     r = lseek(fd, 0, SEEK_SET);
     if (r == -1)
     {
         auto e = errno;
         log<level::ERR>("Could not seek to beginning of FFDC file",
                         entry("ERRNO=%d", e));
         return data;
     }

     r = read(fd, data.data(), s.st_size);
     if (r == -1)
     {
         auto e = errno;
         log<level::ERR>("Could not read FFDC file", entry("ERRNO=%d", e));
     }
     else if (r != s.st_size)
     {
         log<level::WARNING>("Could not read full FFDC file",
                             entry("FILE_SIZE=%d", s.st_size),
                             entry("SIZE_READ=%d", r));
     }

     return data;
 }

 std::unique_ptr<UserData> makeFFDCuserDataSection(uint16_t componentID,
                                                   const PelFFDCfile& file)
 {
     auto data = readFD(file.fd);

     if (data.empty())
     {
         return std::unique_ptr<UserData>();
     }

     // The data needs 4 Byte alignment, and save amount padded for the
     // CBOR case.
     uint32_t pad = 0;
     while (data.size() % 4)
     {
         data.push_back(0);
         pad++;
     }

     // For JSON, CBOR, and Text use our component ID, subType, and version,
     // otherwise use the supplied ones.
     uint16_t compID = static_cast<uint16_t>(ComponentID::phosphorLogging);
     uint8_t subType{};
     uint8_t version{};

     switch (file.format)
     {
         case UserDataFormat::json:
             subType = static_cast<uint8_t>(UserDataFormat::json);
             version = static_cast<uint8_t>(UserDataFormatVersion::json);
             break;
         case UserDataFormat::cbor:
             subType = static_cast<uint8_t>(UserDataFormat::cbor);
             version = static_cast<uint8_t>(UserDataFormatVersion::cbor);

             // The CBOR parser will fail on the extra pad bytes since they
             // aren't CBOR.  Add the amount we padded to the end and other
             // code will remove it all before parsing.
             {
                 data.resize(data.size() + 4);
                 Stream stream{data};
                 stream.offset(data.size() - 4);
                 stream << pad;
             }

             break;
         case UserDataFormat::text:
             subType = static_cast<uint8_t>(UserDataFormat::text);
             version = static_cast<uint8_t>(UserDataFormatVersion::text);
             break;
         case UserDataFormat::custom:
         default:
             // Use the passed in values
             compID = componentID;
             subType = file.subType;
             version = file.version;
             break;
     }

     return std::make_unique<UserData>(compID, subType, version, data);
 }

 } // namespace util

 } // namespace pels
 } // namespace openpower
	/**
	* Copyright © 2019 IBM Corporation
	*
	* Licensed under the Apache License, Version 2.0 (the "License");
	* you may not use this file except in compliance with the License.
	* You may obtain a copy of the License at
	*
	* http://www.apache.org/licenses/LICENSE-2.0
	*
	* Unless required by applicable law or agreed to in writing, software
	* distributed under the License is distributed on an "AS IS" BASIS,
	* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	* See the License for the specific language governing permissions and
	* limitations under the License.
	*/
	#include "pel.hpp"

	#include "bcd_time.hpp"
	#include "extended_user_header.hpp"
	#include "failing_mtms.hpp"
	#include "json_utils.hpp"
	#include "log_id.hpp"
	#include "pel_rules.hpp"
	#include "pel_values.hpp"
	#include "section_factory.hpp"
	#include "src.hpp"
	#include "stream.hpp"
	#include "user_data_formats.hpp"

	#include <sys/stat.h>
	#include <unistd.h>

	#include <iostream>
	#include <phosphor-logging/log.hpp>

	namespace openpower
	{
	namespace pels
	{
	namespace message = openpower::pels::message;
	namespace pv = openpower::pels::pel_values;
	using namespace phosphor::logging;

	constexpr auto unknownValue = "Unknown";

	PEL::PEL(const message::Entry& regEntry, uint32_t obmcLogID, uint64_t timestamp,
	phosphor::logging::Entry::Level severity,
	const AdditionalData& additionalData, const PelFFDC& ffdcFiles,
	const DataInterfaceBase& dataIface)
	{
	std::map<std::string, std::vector<std::string>> debugData;

	_ph = std::make_unique<PrivateHeader>(regEntry.componentID, obmcLogID,
	timestamp);
	_uh = std::make_unique<UserHeader>(regEntry, severity, dataIface);

	auto src = std::make_unique<SRC>(regEntry, additionalData, dataIface);
	if (!src->getDebugData().empty())
	{
	// Something didn't go as planned
	debugData.emplace("SRC", src->getDebugData());
	}

	auto euh = std::make_unique<ExtendedUserHeader>(dataIface, regEntry, *src);

	_optionalSections.push_back(std::move(src));
	_optionalSections.push_back(std::move(euh));

	auto mtms = std::make_unique<FailingMTMS>(dataIface);
	_optionalSections.push_back(std::move(mtms));

	auto ud = util::makeSysInfoUserDataSection(additionalData, dataIface);
	addUserDataSection(std::move(ud));

	// Create a UserData section from AdditionalData.
	if (!additionalData.empty())
	{
	ud = util::makeADUserDataSection(additionalData);
	addUserDataSection(std::move(ud));
	}

	// Add any FFDC files into UserData sections
	for (const auto& file : ffdcFiles)
	{
	ud = util::makeFFDCuserDataSection(regEntry.componentID, file);
	if (!ud)
	{
	// Add this error into the debug data UserData section
	std::ostringstream msg;
	msg << "Could not make PEL FFDC UserData section from file"
	<< std::hex << regEntry.componentID << " " << file.subType
	<< " " << file.version;
	if (debugData.count("FFDC File"))
	{
	debugData.at("FFDC File").push_back(msg.str());
	}
	else
	{
	debugData.emplace("FFDC File",
	std::vector<std::string>{msg.str()});
	}

	continue;
	}

	addUserDataSection(std::move(ud));
	}

	// Store in the PEL any important debug data created while
	// building the PEL sections.
	if (!debugData.empty())
	{
	nlohmann::json data;
	data["PEL Internal Debug Data"] = debugData;
	ud = util::makeJSONUserDataSection(data);

	addUserDataSection(std::move(ud));

	// Also put in the journal for debug
	for (const auto& [name, data] : debugData)
	{
	for (const auto& message : data)
	{
	std::string entry = name + ": " + message;
	log<level::INFO>(entry.c_str());
	}
	}
	}

	_ph->setSectionCount(2 + _optionalSections.size());

	checkRulesAndFix();
	}

	PEL::PEL(std::vector<uint8_t>& data) : PEL(data, 0)
	{
	}

	PEL::PEL(std::vector<uint8_t>& data, uint32_t obmcLogID)
	{
	populateFromRawData(data, obmcLogID);
	}

	void PEL::populateFromRawData(std::vector<uint8_t>& data, uint32_t obmcLogID)
	{
	Stream pelData{data};
	_ph = std::make_unique<PrivateHeader>(pelData);
	if (obmcLogID != 0)
	{
	_ph->setOBMCLogID(obmcLogID);
	}

	_uh = std::make_unique<UserHeader>(pelData);

	// Use the section factory to create the rest of the objects
	for (size_t i = 2; i < _ph->sectionCount(); i++)
	{
	auto section = section_factory::create(pelData);
	_optionalSections.push_back(std::move(section));
	}
	}

	bool PEL::valid() const
	{
	bool valid = _ph->valid();

	if (valid)
	{
	valid = _uh->valid();
	}

	if (valid)
	{
	if (!std::all_of(_optionalSections.begin(), _optionalSections.end(),
	[](const auto& section) { return section->valid(); }))
	{
	valid = false;
	}
	}

	return valid;
	}

	void PEL::setCommitTime()
	{
	auto now = std::chrono::system_clock::now();
	_ph->setCommitTimestamp(getBCDTime(now));
	}

	void PEL::assignID()
	{
	_ph->setID(generatePELID());
	}

	void PEL::flatten(std::vector<uint8_t>& pelBuffer) const
	{
	Stream pelData{pelBuffer};

	if (!valid())
	{
	log<level::WARNING>("Unflattening an invalid PEL");
	}

	_ph->flatten(pelData);
	_uh->flatten(pelData);

	for (auto& section : _optionalSections)
	{
	section->flatten(pelData);
	}
	}

	std::vector<uint8_t> PEL::data() const
	{
	std::vector<uint8_t> pelData;
	flatten(pelData);
	return pelData;
	}

	size_t PEL::size() const
	{
	size_t size = 0;

	if (_ph)
	{
	size += _ph->header().size;
	}

	if (_uh)
	{
	size += _uh->header().size;
	}

	for (const auto& section : _optionalSections)
	{
	size += section->header().size;
	}

	return size;
	}

	std::optional<SRC*> PEL::primarySRC() const
	{
	auto src = std::find_if(
	_optionalSections.begin(), _optionalSections.end(), [](auto& section) {
	return section->header().id ==
	static_cast<uint16_t>(SectionID::primarySRC);
	});
	if (src != _optionalSections.end())
	{
	return static_cast<SRC*>(src->get());
	}

	return std::nullopt;
	}

	void PEL::checkRulesAndFix()
	{
	auto [actionFlags, eventType] =
	pel_rules::check(_uh->actionFlags(), _uh->eventType(), _uh->severity());

	_uh->setActionFlags(actionFlags);
	_uh->setEventType(eventType);
	}

	void PEL::printSectionInJSON(const Section& section, std::string& buf,
	std::map<uint16_t, size_t>& pluralSections,
	message::Registry& registry) const
	{
	char tmpB[5];
	uint8_t id[] = {static_cast<uint8_t>(section.header().id >> 8),
	static_cast<uint8_t>(section.header().id)};
	sprintf(tmpB, "%c%c", id[0], id[1]);
	std::string sectionID(tmpB);
	std::string sectionName = pv::sectionTitles.count(sectionID)
	? pv::sectionTitles.at(sectionID)
	: "Unknown Section";

	// Add a count if there are multiple of this type of section
	auto count = pluralSections.find(section.header().id);
	if (count != pluralSections.end())
	{
	sectionName += " " + std::to_string(count->second);
	count->second++;
	}

	if (section.valid())
	{
	auto json = (sectionID == "PS" \|\| sectionID == "SS")
	? section.getJSON(registry)
	: section.getJSON();

	buf += "\"" + sectionName + "\": {\n";

	if (json)
	{
	buf += *json + "\n},\n";
	}
	else
	{
	jsonInsert(buf, pv::sectionVer,
	getNumberString("%d", section.header().version), 1);
	jsonInsert(buf, pv::subSection,
	getNumberString("%d", section.header().subType), 1);
	jsonInsert(buf, pv::createdBy,
	getNumberString("0x%X", section.header().componentID),
	1);

	std::vector<uint8_t> data;
	Stream s{data};
	section.flatten(s);
	std::string dstr =
	dumpHex(std::data(data) + SectionHeader::flattenedSize(),
	data.size() - SectionHeader::flattenedSize(), 2);
	std::string jsonIndent(indentLevel, 0x20);
	buf += jsonIndent + "\"Data\": [\n";
	buf += dstr;
	buf += jsonIndent + "]\n";
	buf += "},\n";
	}
	}
	else
	{
	buf += "\n\"Invalid Section\": [\n \"invalid\"\n],\n";
	}
	}

	std::map<uint16_t, size_t> PEL::getPluralSections() const
	{
	std::map<uint16_t, size_t> sectionCounts;

	for (const auto& section : optionalSections())
	{
	if (sectionCounts.find(section->header().id) == sectionCounts.end())
	{
	sectionCounts[section->header().id] = 1;
	}
	else
	{
	sectionCounts[section->header().id]++;
	}
	}

	std::map<uint16_t, size_t> sections;
	for (const auto& [id, count] : sectionCounts)
	{
	if (count > 1)
	{
	// Start with 0 here and printSectionInJSON()
	// will increment it as it goes.
	sections.emplace(id, 0);
	}
	}

	return sections;
	}

	void PEL::toJSON(message::Registry& registry) const
	{
	auto sections = getPluralSections();

	std::string buf = "{\n";
	printSectionInJSON(*(_ph.get()), buf, sections, registry);
	printSectionInJSON(*(_uh.get()), buf, sections, registry);
	for (auto& section : this->optionalSections())
	{
	printSectionInJSON(*(section.get()), buf, sections, registry);
	}
	buf += "}";
	std::size_t found = buf.rfind(",");
	if (found != std::string::npos)
	buf.replace(found, 1, "");
	std::cout << buf << std::endl;
	}

	bool PEL::addUserDataSection(std::unique_ptr<UserData> userData)
	{
	if (size() + userData->header().size > _maxPELSize)
	{
	if (userData->shrink(_maxPELSize - size()))
	{
	_optionalSections.push_back(std::move(userData));
	}
	else
	{
	log<level::WARNING>(
	"Could not shrink UserData section. Dropping",
	entry("SECTION_SIZE=%d\n", userData->header().size),
	entry("COMPONENT_ID=0x%02X", userData->header().componentID),
	entry("SUBTYPE=0x%X", userData->header().subType),
	entry("VERSION=0x%X", userData->header().version));
	return false;
	}
	}
	else
	{
	_optionalSections.push_back(std::move(userData));
	}
	return true;
	}

	namespace util
	{

	std::unique_ptr<UserData> makeJSONUserDataSection(const nlohmann::json& json)
	{
	auto jsonString = json.dump();
	std::vector<uint8_t> jsonData(jsonString.begin(), jsonString.end());

	// Pad to a 4 byte boundary
	while ((jsonData.size() % 4) != 0)
	{
	jsonData.push_back(0);
	}

	return std::make_unique<UserData>(
	static_cast<uint16_t>(ComponentID::phosphorLogging),
	static_cast<uint8_t>(UserDataFormat::json),
	static_cast<uint8_t>(UserDataFormatVersion::json), jsonData);
	}

	std::unique_ptr<UserData> makeADUserDataSection(const AdditionalData& ad)
	{
	assert(!ad.empty());
	nlohmann::json json;

	// Remove the 'ESEL' entry, as it contains a full PEL in the value.
	if (ad.getValue("ESEL"))
	{
	auto newAD = ad;
	newAD.remove("ESEL");
	json = newAD.toJSON();
	}
	else
	{
	json = ad.toJSON();
	}

	return makeJSONUserDataSection(json);
	}

	void addProcessNameToJSON(nlohmann::json& json,
	const std::optional<std::string>& pid,
	const DataInterfaceBase& dataIface)
	{
	std::string name{unknownValue};

	try
	{
	if (pid)
	{
	auto n = dataIface.getProcessName(*pid);
	if (n)
	{
	name = *n;
	}
	}
	}
	catch (std::exception& e)
	{
	}

	json["Process Name"] = std::move(name);
	}

	void addBMCFWVersionIDToJSON(nlohmann::json& json,
	const DataInterfaceBase& dataIface)
	{
	auto id = dataIface.getBMCFWVersionID();
	if (id.empty())
	{
	id = unknownValue;
	}

	json["BMC Version ID"] = std::move(id);
	}

	std::string lastSegment(char separator, std::string data)
	{
	auto pos = data.find_last_of(separator);
	if (pos != std::string::npos)
	{
	data = data.substr(pos + 1);
	}

	return data;
	}

	void addStatesToJSON(nlohmann::json& json, const DataInterfaceBase& dataIface)
	{
	json["BMCState"] = lastSegment('.', dataIface.getBMCState());
	json["ChassisState"] = lastSegment('.', dataIface.getChassisState());
	json["HostState"] = lastSegment('.', dataIface.getHostState());
	}

	std::unique_ptr<UserData>
	makeSysInfoUserDataSection(const AdditionalData& ad,
	const DataInterfaceBase& dataIface)
	{
	nlohmann::json json;

	addProcessNameToJSON(json, ad.getValue("_PID"), dataIface);
	addBMCFWVersionIDToJSON(json, dataIface);
	addStatesToJSON(json, dataIface);

	return makeJSONUserDataSection(json);
	}

	std::vector<uint8_t> readFD(int fd)
	{
	std::vector<uint8_t> data;

	// Get the size
	struct stat s;
	int r = fstat(fd, &s);
	if (r != 0)
	{
	auto e = errno;
	log<level::ERR>("Could not get FFDC file size from FD",
	entry("ERRNO=%d", e));
	return data;
	}

	if (0 == s.st_size)
	{
	log<level::ERR>("FFDC file is empty");
	return data;
	}

	data.resize(s.st_size);

	// Make sure its at the beginning, as maybe another
	// extension already used it.
	r = lseek(fd, 0, SEEK_SET);
	if (r == -1)
	{
	auto e = errno;
	log<level::ERR>("Could not seek to beginning of FFDC file",
	entry("ERRNO=%d", e));
	return data;
	}

	r = read(fd, data.data(), s.st_size);
	if (r == -1)
	{
	auto e = errno;
	log<level::ERR>("Could not read FFDC file", entry("ERRNO=%d", e));
	}
	else if (r != s.st_size)
	{
	log<level::WARNING>("Could not read full FFDC file",
	entry("FILE_SIZE=%d", s.st_size),
	entry("SIZE_READ=%d", r));
	}

	return data;
	}

	std::unique_ptr<UserData> makeFFDCuserDataSection(uint16_t componentID,
	const PelFFDCfile& file)
	{
	auto data = readFD(file.fd);

	if (data.empty())
	{
	return std::unique_ptr<UserData>();
	}

	// The data needs 4 Byte alignment, and save amount padded for the
	// CBOR case.
	uint32_t pad = 0;
	while (data.size() % 4)
	{
	data.push_back(0);
	pad++;
	}

	// For JSON, CBOR, and Text use our component ID, subType, and version,
	// otherwise use the supplied ones.
	uint16_t compID = static_cast<uint16_t>(ComponentID::phosphorLogging);
	uint8_t subType{};
	uint8_t version{};

	switch (file.format)
	{
	case UserDataFormat::json:
	subType = static_cast<uint8_t>(UserDataFormat::json);
	version = static_cast<uint8_t>(UserDataFormatVersion::json);
	break;
	case UserDataFormat::cbor:
	subType = static_cast<uint8_t>(UserDataFormat::cbor);
	version = static_cast<uint8_t>(UserDataFormatVersion::cbor);

	// The CBOR parser will fail on the extra pad bytes since they
	// aren't CBOR. Add the amount we padded to the end and other
	// code will remove it all before parsing.
	{
	data.resize(data.size() + 4);
	Stream stream{data};
	stream.offset(data.size() - 4);
	stream << pad;
	}

	break;
	case UserDataFormat::text:
	subType = static_cast<uint8_t>(UserDataFormat::text);
	version = static_cast<uint8_t>(UserDataFormatVersion::text);
	break;
	case UserDataFormat::custom:
	default:
	// Use the passed in values
	compID = componentID;
	subType = file.subType;
	version = file.version;
	break;
	}

	return std::make_unique<UserData>(compID, subType, version, data);
	}

	} // namespace util

	} // namespace pels
	} // namespace openpower