blob: 7507230d16108f6fe094f7ca21f1901be32bd748 [file] [log] [blame]
#include "writefrudata.hpp"
#include "fru_area.hpp"
#include "frup.hpp"
#include "types.hpp"
#include <ipmid/api.h>
#include <unistd.h>
#include <algorithm>
#include <cstdio>
#include <cstring>
#include <exception>
#include <fstream>
#include <iostream>
#include <map>
#include <memory>
#include <phosphor-logging/log.hpp>
#include <sdbusplus/bus.hpp>
#include <sstream>
#include <vector>
using namespace ipmi::vpd;
using namespace phosphor::logging;
extern const FruMap frus;
extern const std::map<Path, InterfaceMap> extras;
using FruAreaVector = std::vector<std::unique_ptr<IPMIFruArea>>;
namespace
{
/**
* Cleanup routine
* Must always be called as last reference to fruFilePointer.
*
* @param[in] fruFilePointer - FRU file pointer to close
* @param[in] fruAreaVec - vector of FRU areas
* @return -1
*/
int cleanupError(FILE* fruFilePointer, FruAreaVector& fruAreaVec)
{
if (fruFilePointer != NULL)
{
std::fclose(fruFilePointer);
}
if (!(fruAreaVec.empty()))
{
fruAreaVec.clear();
}
return -1;
}
/**
* Gets the value of the key from the FRU dictionary of the given section.
* FRU dictionary is parsed FRU data for all the sections.
*
* @param[in] section - FRU section name
* @param[in] key - key for secion
* @param[in] delimiter - delimiter for parsing custom fields
* @param[in] fruData - the FRU data to search for the section
* @return FRU value
*/
std::string getFRUValue(const std::string& section, const std::string& key,
const std::string& delimiter, IPMIFruInfo& fruData)
{
auto minIndexValue = 0;
auto maxIndexValue = 0;
std::string fruValue = "";
if (section == "Board")
{
minIndexValue = OPENBMC_VPD_KEY_BOARD_MFG_DATE;
maxIndexValue = OPENBMC_VPD_KEY_BOARD_MAX;
}
else if (section == "Product")
{
minIndexValue = OPENBMC_VPD_KEY_PRODUCT_MFR;
maxIndexValue = OPENBMC_VPD_KEY_PRODUCT_MAX;
}
else if (section == "Chassis")
{
minIndexValue = OPENBMC_VPD_KEY_CHASSIS_TYPE;
maxIndexValue = OPENBMC_VPD_KEY_CHASSIS_MAX;
}
auto first = fruData.cbegin() + minIndexValue;
auto last = first + (maxIndexValue - minIndexValue) + 1;
auto itr = std::find_if(first, last,
[&key](const auto& e) { return key == e.first; });
if (itr != last)
{
fruValue = itr->second;
}
// if the key is custom property then the value could be in two formats.
// 1) custom field 2 = "value".
// 2) custom field 2 = "key:value".
// if delimiter length = 0 i.e custom field 2 = "value"
constexpr auto customProp = "Custom Field";
if (key.find(customProp) != std::string::npos)
{
if (delimiter.length() > 0)
{
size_t delimiterpos = fruValue.find(delimiter);
if (delimiterpos != std::string::npos)
{
fruValue = fruValue.substr(delimiterpos + 1);
}
}
}
return fruValue;
}
/**
* Get the inventory service from the mapper.
*
* @param[in] bus - sdbusplus handle to use for dbus call
* @param[in] intf - interface
* @param[in] path - the object path
* @return the dbus service that owns the interface for that path
*/
auto getService(sdbusplus::bus::bus& bus, const std::string& intf,
const std::string& path)
{
auto mapperCall =
bus.new_method_call("xyz.openbmc_project.ObjectMapper",
"/xyz/openbmc_project/object_mapper",
"xyz.openbmc_project.ObjectMapper", "GetObject");
mapperCall.append(path);
mapperCall.append(std::vector<std::string>({intf}));
std::map<std::string, std::vector<std::string>> mapperResponse;
try
{
auto mapperResponseMsg = bus.call(mapperCall);
mapperResponseMsg.read(mapperResponse);
}
catch (const sdbusplus::exception::SdBusError& ex)
{
log<level::ERR>("Exception from sdbus call",
entry("WHAT=%s", ex.what()));
throw;
}
if (mapperResponse.begin() == mapperResponse.end())
{
throw std::runtime_error("ERROR in reading the mapper response");
}
return mapperResponse.begin()->first;
}
/**
* Takes FRU data, invokes Parser for each FRU record area and updates
* inventory.
*
* @param[in] areaVector - vector of FRU areas
* @param[in] bus - handle to sdbus for calling methods, etc
* @return return non-zero of failure
*/
int updateInventory(FruAreaVector& areaVector, sdbusplus::bus::bus& bus)
{
// Generic error reporter
int rc = 0;
uint8_t fruid = 0;
IPMIFruInfo fruData;
// For each FRU area, extract the needed data , get it parsed and update
// the Inventory.
for (const auto& fruArea : areaVector)
{
fruid = fruArea->getFruID();
// Fill the container with information
rc = parse_fru_area(fruArea->getType(),
static_cast<const void*>(fruArea->getData()),
fruArea->getLength(), fruData);
if (rc < 0)
{
log<level::ERR>("Error parsing FRU records");
return rc;
}
} // END walking the vector of areas and updating
// For each FRU we have the list of instances which needs to be updated.
// Each instance object implements certain interfaces.
// Each Interface is having Dbus properties.
// Each Dbus Property would be having metaData(eg section,VpdPropertyName).
// Here we are just printing the object,interface and the properties.
// which needs to be called with the new inventory manager implementation.
using namespace std::string_literals;
static const auto intf = "xyz.openbmc_project.Inventory.Manager"s;
static const auto path = "/xyz/openbmc_project/inventory"s;
std::string service;
try
{
service = getService(bus, intf, path);
}
catch (const std::exception& e)
{
std::cerr << e.what() << "\n";
return -1;
}
auto iter = frus.find(fruid);
if (iter == frus.end())
{
log<level::ERR>("Unable to find FRUID in generated list",
entry("FRU=%d", static_cast<int>(fruid)));
return -1;
}
auto& instanceList = iter->second;
if (instanceList.size() <= 0)
{
log<level::DEBUG>("Object list empty for this FRU",
entry("FRU=%d", static_cast<int>(fruid)));
}
ObjectMap objects;
for (const auto& instance : instanceList)
{
InterfaceMap interfaces;
const auto& extrasIter = extras.find(instance.path);
for (const auto& interfaceList : instance.interfaces)
{
PropertyMap props; // store all the properties
for (const auto& properties : interfaceList.second)
{
std::string value;
decltype(auto) pdata = properties.second;
if (!pdata.section.empty() && !pdata.property.empty())
{
value = getFRUValue(pdata.section, pdata.property,
pdata.delimiter, fruData);
}
props.emplace(std::move(properties.first), std::move(value));
}
// Check and update extra properties
if (extras.end() != extrasIter)
{
const auto& propsIter =
(extrasIter->second).find(interfaceList.first);
if ((extrasIter->second).end() != propsIter)
{
for (const auto& map : propsIter->second)
{
props.emplace(map.first, map.second);
}
}
}
interfaces.emplace(std::move(interfaceList.first),
std::move(props));
}
// Call the inventory manager
sdbusplus::message::object_path objectPath = instance.path;
// Check and update extra properties
if (extras.end() != extrasIter)
{
for (const auto& entry : extrasIter->second)
{
if (interfaces.end() == interfaces.find(entry.first))
{
interfaces.emplace(entry.first, entry.second);
}
}
}
objects.emplace(objectPath, interfaces);
}
auto pimMsg = bus.new_method_call(service.c_str(), path.c_str(),
intf.c_str(), "Notify");
pimMsg.append(std::move(objects));
try
{
auto inventoryMgrResponseMsg = bus.call(pimMsg);
}
catch (const sdbusplus::exception::SdBusError& ex)
{
log<level::ERR>("Error in notify call", entry("WHAT=%s", ex.what()),
entry("SERVICE=%s", service.c_str()),
entry("PATH=%s", path.c_str()));
return -1;
}
return rc;
}
} // namespace
/**
* Takes the pointer to stream of bytes and length and returns the 8 bit
* checksum. This algo is per IPMI V2.0 spec
*
* @param[in] data - data for running crc
* @param[in] len - the length over which to run the crc
* @return the CRC value
*/
unsigned char calculateCRC(const unsigned char* data, size_t len)
{
char crc = 0;
size_t byte = 0;
for (byte = 0; byte < len; byte++)
{
crc += *data++;
}
return (-crc);
}
/**
* Accepts a FRU area offset into a commom header and tells which area it is.
*
* @param[in] areaOffset - offset to lookup the area type
* @return the ipmi_fru_area_type
*/
ipmi_fru_area_type getFruAreaType(uint8_t areaOffset)
{
ipmi_fru_area_type type = IPMI_FRU_AREA_TYPE_MAX;
switch (areaOffset)
{
case IPMI_FRU_INTERNAL_OFFSET:
type = IPMI_FRU_AREA_INTERNAL_USE;
break;
case IPMI_FRU_CHASSIS_OFFSET:
type = IPMI_FRU_AREA_CHASSIS_INFO;
break;
case IPMI_FRU_BOARD_OFFSET:
type = IPMI_FRU_AREA_BOARD_INFO;
break;
case IPMI_FRU_PRODUCT_OFFSET:
type = IPMI_FRU_AREA_PRODUCT_INFO;
break;
case IPMI_FRU_MULTI_OFFSET:
type = IPMI_FRU_AREA_MULTI_RECORD;
break;
default:
type = IPMI_FRU_AREA_TYPE_MAX;
}
return type;
}
/**
* Validates the data for mandatory fields and CRC if selected.
*
* @param[in] data - the data to verify
* @param[in] len - the length of the region to verify
* @param[in] validateCrc - whether to validate the CRC
* @return non-zero on failure
*/
int verifyFruData(const uint8_t* data, const size_t len, bool validateCrc)
{
uint8_t checksum = 0;
int rc = -1;
// Validate for first byte to always have a value of [1]
if (data[0] != IPMI_FRU_HDR_BYTE_ZERO)
{
log<level::ERR>("Invalid entry in byte-0",
entry("ENTRY=0x%X", static_cast<uint32_t>(data[0])));
return rc;
}
#ifdef __IPMI_DEBUG__
else
{
log<level::DEBUG>("Validated in entry_1 of fruData",
entry("ENTRY=0x%X", static_cast<uint32_t>(data[0])));
}
#endif
if (!validateCrc)
{
// There's nothing else to do for this area.
return EXIT_SUCCESS;
}
// See if the calculated CRC matches with the embedded one.
// CRC to be calculated on all except the last one that is CRC itself.
checksum = calculateCRC(data, len - 1);
if (checksum != data[len - 1])
{
#ifdef __IPMI_DEBUG__
log<level::ERR>(
"Checksum mismatch",
entry("Calculated=0x%X", static_cast<uint32_t>(checksum)),
entry("Embedded=0x%X", static_cast<uint32_t>(data[len])));
#endif
return rc;
}
#ifdef __IPMI_DEBUG__
else
{
log<level::DEBUG>("Checksum matches");
}
#endif
return EXIT_SUCCESS;
}
/**
* Checks if a particular FRU area is populated or not.
*
* @param[in] reference to FRU area pointer
* @return true if the area is empty
*/
bool removeInvalidArea(const std::unique_ptr<IPMIFruArea>& fruArea)
{
// Filter the ones that are empty
if (!(fruArea->getLength()))
{
return true;
}
return false;
}
/**
* Populates various FRU areas.
*
* @prereq : This must be called only after validating common header
* @param[in] fruData - pointer to the FRU bytes
* @param[in] dataLen - the length of the FRU data
* @param[in] fruAreaVec - the FRU area vector to update
*/
int ipmiPopulateFruAreas(uint8_t* fruData, const size_t dataLen,
FruAreaVector& fruAreaVec)
{
// Now walk the common header and see if the file size has atleast the last
// offset mentioned by the struct common_header. If the file size is less
// than the offset of any if the FRU areas mentioned in the common header,
// then we do not have a complete file.
for (uint8_t fruEntry = IPMI_FRU_INTERNAL_OFFSET;
fruEntry < (sizeof(struct common_header) - 2); fruEntry++)
{
int rc = -1;
// Actual offset in the payload is the offset mentioned in common header
// multiplied by 8. Common header is always the first 8 bytes.
size_t areaOffset = fruData[fruEntry] * IPMI_EIGHT_BYTES;
if (areaOffset && (dataLen < (areaOffset + 2)))
{
// Our file size is less than what it needs to be. +2 because we are
// using area len that is at 2 byte off areaOffset
log<level::ERR>("FRU file is incomplete",
entry("SIZE=%d", dataLen));
return rc;
}
else if (areaOffset)
{
// Read 2 bytes to know the actual size of area.
uint8_t areaHeader[2] = {0};
std::memcpy(areaHeader, &((uint8_t*)fruData)[areaOffset],
sizeof(areaHeader));
// Size of this area will be the 2nd byte in the FRU area header.
size_t areaLen = areaHeader[1] * IPMI_EIGHT_BYTES;
uint8_t areaData[areaLen] = {0};
log<level::DEBUG>("FRU Data", entry("SIZE=%d", dataLen),
entry("AREA OFFSET=%d", areaOffset),
entry("AREA_SIZE=%d", areaLen));
// See if we really have that much buffer. We have area offset amd
// from there, the actual len.
if (dataLen < (areaLen + areaOffset))
{
log<level::ERR>("Incomplete FRU file",
entry("SIZE=%d", dataLen));
return rc;
}
// Save off the data.
std::memcpy(areaData, &((uint8_t*)fruData)[areaOffset], areaLen);
// Validate the CRC, but not for the internal use area, since its
// contents beyond the first byte are not defined in the spec and
// it may not end with a CRC byte.
bool validateCrc = fruEntry != IPMI_FRU_INTERNAL_OFFSET;
rc = verifyFruData(areaData, areaLen, validateCrc);
if (rc < 0)
{
log<level::ERR>("Err validating FRU area",
entry("OFFSET=%d", areaOffset));
return rc;
}
else
{
log<level::DEBUG>("Successfully verified area.",
entry("OFFSET=%d", areaOffset));
}
// We already have a vector that is passed to us containing all
// of the fields populated. Update the data portion now.
for (auto& iter : fruAreaVec)
{
if (iter->getType() == getFruAreaType(fruEntry))
{
iter->setData(areaData, areaLen);
}
}
} // If we have FRU data present
} // Walk struct common_header
// Not all the fields will be populated in a FRU data. Mostly all cases will
// not have more than 2 or 3.
fruAreaVec.erase(
std::remove_if(fruAreaVec.begin(), fruAreaVec.end(), removeInvalidArea),
fruAreaVec.end());
return EXIT_SUCCESS;
}
/**
* Validates the FRU data per ipmi common header constructs.
* Returns with updated struct common_header and also file_size
*
* @param[in] fruData - the FRU data
* @param[in] dataLen - the length of the data
* @return non-zero on failure
*/
int ipmiValidateCommonHeader(const uint8_t* fruData, const size_t dataLen)
{
int rc = -1;
uint8_t commonHdr[sizeof(struct common_header)] = {0};
if (dataLen >= sizeof(commonHdr))
{
std::memcpy(commonHdr, fruData, sizeof(commonHdr));
}
else
{
log<level::ERR>("Incomplete FRU data file", entry("SIZE=%d", dataLen));
return rc;
}
// Verify the CRC and size
rc = verifyFruData(commonHdr, sizeof(commonHdr), true);
if (rc < 0)
{
log<level::ERR>("Failed to validate common header");
return rc;
}
return EXIT_SUCCESS;
}
int validateFRUArea(const uint8_t fruid, const char* fruFilename,
sdbusplus::bus::bus& bus, const bool bmcOnlyFru)
{
size_t dataLen = 0;
size_t bytesRead = 0;
int rc = -1;
// Vector that holds individual IPMI FRU AREAs. Although MULTI and INTERNAL
// are not used, keeping it here for completeness.
FruAreaVector fruAreaVec;
for (uint8_t fruEntry = IPMI_FRU_INTERNAL_OFFSET;
fruEntry < (sizeof(struct common_header) - 2); fruEntry++)
{
// Create an object and push onto a vector.
std::unique_ptr<IPMIFruArea> fruArea = std::make_unique<IPMIFruArea>(
fruid, getFruAreaType(fruEntry), bmcOnlyFru);
// Physically being present
bool present = access(fruFilename, F_OK) == 0;
fruArea->setPresent(present);
fruAreaVec.emplace_back(std::move(fruArea));
}
FILE* fruFilePointer = std::fopen(fruFilename, "rb");
if (fruFilePointer == NULL)
{
log<level::ERR>("Unable to open FRU file",
entry("FILE=%s", fruFilename),
entry("ERRNO=%s", std::strerror(errno)));
return cleanupError(fruFilePointer, fruAreaVec);
}
// Get the size of the file to see if it meets minimum requirement
if (std::fseek(fruFilePointer, 0, SEEK_END))
{
log<level::ERR>("Unable to seek FRU file",
entry("FILE=%s", fruFilename),
entry("ERRNO=%s", std::strerror(errno)));
return cleanupError(fruFilePointer, fruAreaVec);
}
// Allocate a buffer to hold entire file content
dataLen = std::ftell(fruFilePointer);
uint8_t fruData[dataLen] = {0};
std::rewind(fruFilePointer);
bytesRead = std::fread(fruData, dataLen, 1, fruFilePointer);
if (bytesRead != 1)
{
log<level::ERR>("Failed reading FRU data.",
entry("BYTESREAD=%d", bytesRead),
entry("ERRNO=%s", std::strerror(errno)));
return cleanupError(fruFilePointer, fruAreaVec);
}
// We are done reading.
std::fclose(fruFilePointer);
fruFilePointer = NULL;
rc = ipmiValidateCommonHeader(fruData, dataLen);
if (rc < 0)
{
return cleanupError(fruFilePointer, fruAreaVec);
}
// Now that we validated the common header, populate various FRU sections if
// we have them here.
rc = ipmiPopulateFruAreas(fruData, dataLen, fruAreaVec);
if (rc < 0)
{
log<level::ERR>("Populating FRU areas failed", entry("FRU=%d", fruid));
return cleanupError(fruFilePointer, fruAreaVec);
}
else
{
log<level::DEBUG>("Populated FRU areas", entry("FILE=%s", fruFilename));
}
#ifdef __IPMI_DEBUG__
for (const auto& iter : fruAreaVec)
{
std::printf("FRU ID : [%d]\n", iter->getFruID());
std::printf("AREA NAME : [%s]\n", iter->getName());
std::printf("TYPE : [%d]\n", iter->getType());
std::printf("LEN : [%d]\n", iter->getLength());
}
#endif
// If the vector is populated with everything, then go ahead and update the
// inventory.
if (!(fruAreaVec.empty()))
{
#ifdef __IPMI_DEBUG__
std::printf("\n SIZE of vector is : [%d] \n", fruAreaVec.size());
#endif
rc = updateInventory(fruAreaVec, bus);
if (rc < 0)
{
log<level::ERR>("Error updating inventory.");
}
}
// we are done with all that we wanted to do. This will do the job of
// calling any destructors too.
fruAreaVec.clear();
return rc;
}