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apphandler.cpp
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#include "config.h"
#include <arpa/inet.h>
#include <fcntl.h>
#include <limits.h>
#include <linux/i2c-dev.h>
#include <linux/i2c.h>
#include <sys/ioctl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <systemd/sd-bus.h>
#include <unistd.h>
#include <app/channel.hpp>
#include <app/watchdog.hpp>
#include <apphandler.hpp>
#include <ipmid/api.hpp>
#include <ipmid/sessiondef.hpp>
#include <ipmid/sessionhelper.hpp>
#include <ipmid/types.hpp>
#include <ipmid/utils.hpp>
#include <nlohmann/json.hpp>
#include <phosphor-logging/elog-errors.hpp>
#include <phosphor-logging/lg2.hpp>
#include <sdbusplus/message/types.hpp>
#include <sys_info_param.hpp>
#include <xyz/openbmc_project/Common/error.hpp>
#include <xyz/openbmc_project/Control/Power/ACPIPowerState/server.hpp>
#include <xyz/openbmc_project/Software/Activation/server.hpp>
#include <xyz/openbmc_project/Software/Version/server.hpp>
#include <xyz/openbmc_project/State/BMC/server.hpp>
#include <algorithm>
#include <array>
#include <charconv>
#include <cstddef>
#include <cstdint>
#include <filesystem>
#include <fstream>
#include <memory>
#include <regex>
#include <string>
#include <string_view>
#include <tuple>
#include <vector>
extern sd_bus* bus;
constexpr auto bmc_state_interface = "xyz.openbmc_project.State.BMC";
constexpr auto bmc_state_property = "CurrentBMCState";
constexpr auto versionPurposeHostEnd = ".Host";
static constexpr auto redundancyIntf =
"xyz.openbmc_project.Software.RedundancyPriority";
static constexpr auto versionIntf = "xyz.openbmc_project.Software.Version";
static constexpr auto activationIntf =
"xyz.openbmc_project.Software.Activation";
static constexpr auto softwareRoot = "/xyz/openbmc_project/software";
void registerNetFnAppFunctions() __attribute__((constructor));
using namespace phosphor::logging;
using namespace sdbusplus::error::xyz::openbmc_project::common;
using Version = sdbusplus::server::xyz::openbmc_project::software::Version;
using Activation =
sdbusplus::server::xyz::openbmc_project::software::Activation;
using BMC = sdbusplus::server::xyz::openbmc_project::state::BMC;
namespace fs = std::filesystem;
#ifdef ENABLE_I2C_WHITELIST_CHECK
typedef struct
{
uint8_t busId;
uint8_t targetAddr;
uint8_t targetAddrMask;
std::vector<uint8_t> data;
std::vector<uint8_t> dataMask;
} i2cControllerWRAllowlist;
static std::vector<i2cControllerWRAllowlist>& getWRAllowlist()
{
static std::vector<i2cControllerWRAllowlist> wrAllowlist;
return wrAllowlist;
}
static constexpr const char* i2cControllerWRAllowlistFile =
"/usr/share/ipmi-providers/master_write_read_white_list.json";
static constexpr const char* filtersStr = "filters";
static constexpr const char* busIdStr = "busId";
static constexpr const char* targetAddrStr = "slaveAddr";
static constexpr const char* targetAddrMaskStr = "slaveAddrMask";
static constexpr const char* cmdStr = "command";
static constexpr const char* cmdMaskStr = "commandMask";
static constexpr int base_16 = 16;
#endif // ENABLE_I2C_WHITELIST_CHECK
static constexpr uint8_t oemCmdStart = 192;
static constexpr uint8_t invalidParamSelectorStart = 8;
static constexpr uint8_t invalidParamSelectorEnd = 191;
/**
* @brief Returns the Version info from primary s/w object
*
* Get the Version info from the active s/w object which is having high
* "Priority" value(a smaller number is a higher priority) and "Purpose"
* is "BMC" from the list of all s/w objects those are implementing
* RedundancyPriority interface from the given softwareRoot path.
*
* @return On success returns the Version info from primary s/w object.
*
*/
std::string getActiveSoftwareVersionInfo(ipmi::Context::ptr ctx)
{
std::string revision{};
ipmi::ObjectTree objectTree;
try
{
objectTree =
ipmi::getAllDbusObjects(*ctx->bus, softwareRoot, redundancyIntf);
}
catch (const sdbusplus::exception_t& e)
{
lg2::error("Failed to fetch redundancy object from dbus, "
"interface: {INTERFACE}, error: {ERROR}",
"INTERFACE", redundancyIntf, "ERROR", e);
elog<InternalFailure>();
}
auto objectFound = false;
for (auto& softObject : objectTree)
{
auto service =
ipmi::getService(*ctx->bus, redundancyIntf, softObject.first);
auto objValueTree =
ipmi::getManagedObjects(*ctx->bus, service, softwareRoot);
auto minPriority = 0xFF;
for (const auto& objIter : objValueTree)
{
try
{
auto& intfMap = objIter.second;
auto& redundancyPriorityProps = intfMap.at(redundancyIntf);
auto& versionProps = intfMap.at(versionIntf);
auto& activationProps = intfMap.at(activationIntf);
auto priority =
std::get<uint8_t>(redundancyPriorityProps.at("Priority"));
auto purpose =
std::get<std::string>(versionProps.at("Purpose"));
auto activation =
std::get<std::string>(activationProps.at("Activation"));
auto version =
std::get<std::string>(versionProps.at("Version"));
if ((Version::convertVersionPurposeFromString(purpose) ==
Version::VersionPurpose::BMC) &&
(Activation::convertActivationsFromString(activation) ==
Activation::Activations::Active))
{
if (priority < minPriority)
{
minPriority = priority;
objectFound = true;
revision = std::move(version);
}
}
}
catch (const std::exception& e)
{
lg2::error("error message: {ERROR}", "ERROR", e);
}
}
}
if (!objectFound)
{
lg2::error("Could not found an BMC software Object");
elog<InternalFailure>();
}
return revision;
}
bool getCurrentBmcState()
{
sdbusplus::bus_t bus{ipmid_get_sd_bus_connection()};
// Get the Inventory object implementing the BMC interface
ipmi::DbusObjectInfo bmcObject =
ipmi::getDbusObject(bus, bmc_state_interface);
auto variant =
ipmi::getDbusProperty(bus, bmcObject.second, bmcObject.first,
bmc_state_interface, bmc_state_property);
return std::holds_alternative<std::string>(variant) &&
BMC::convertBMCStateFromString(std::get<std::string>(variant)) ==
BMC::BMCState::Ready;
}
bool getCurrentBmcStateWithFallback(const bool fallbackAvailability)
{
try
{
return getCurrentBmcState();
}
catch (...)
{
// Nothing provided the BMC interface, therefore return whatever was
// configured as the default.
return fallbackAvailability;
}
}
namespace acpi_state
{
using namespace sdbusplus::server::xyz::openbmc_project::control::power;
const static constexpr char* acpiInterface =
"xyz.openbmc_project.Control.Power.ACPIPowerState";
const static constexpr char* sysACPIProp = "SysACPIStatus";
const static constexpr char* devACPIProp = "DevACPIStatus";
enum class PowerStateType : uint8_t
{
sysPowerState = 0x00,
devPowerState = 0x01,
};
// Defined in 20.6 of ipmi doc
enum class PowerState : uint8_t
{
s0G0D0 = 0x00,
s1D1 = 0x01,
s2D2 = 0x02,
s3D3 = 0x03,
s4 = 0x04,
s5G2 = 0x05,
s4S5 = 0x06,
g3 = 0x07,
sleep = 0x08,
g1Sleep = 0x09,
override = 0x0a,
legacyOn = 0x20,
legacyOff = 0x21,
unknown = 0x2a,
noChange = 0x7f,
};
static constexpr uint8_t stateChanged = 0x80;
std::map<ACPIPowerState::ACPI, PowerState> dbusToIPMI = {
{ACPIPowerState::ACPI::S0_G0_D0, PowerState::s0G0D0},
{ACPIPowerState::ACPI::S1_D1, PowerState::s1D1},
{ACPIPowerState::ACPI::S2_D2, PowerState::s2D2},
{ACPIPowerState::ACPI::S3_D3, PowerState::s3D3},
{ACPIPowerState::ACPI::S4, PowerState::s4},
{ACPIPowerState::ACPI::S5_G2, PowerState::s5G2},
{ACPIPowerState::ACPI::S4_S5, PowerState::s4S5},
{ACPIPowerState::ACPI::G3, PowerState::g3},
{ACPIPowerState::ACPI::SLEEP, PowerState::sleep},
{ACPIPowerState::ACPI::G1_SLEEP, PowerState::g1Sleep},
{ACPIPowerState::ACPI::OVERRIDE, PowerState::override},
{ACPIPowerState::ACPI::LEGACY_ON, PowerState::legacyOn},
{ACPIPowerState::ACPI::LEGACY_OFF, PowerState::legacyOff},
{ACPIPowerState::ACPI::Unknown, PowerState::unknown}};
bool isValidACPIState(acpi_state::PowerStateType type, uint8_t state)
{
if (type == acpi_state::PowerStateType::sysPowerState)
{
if ((state <= static_cast<uint8_t>(acpi_state::PowerState::override)) ||
(state == static_cast<uint8_t>(acpi_state::PowerState::legacyOn)) ||
(state ==
static_cast<uint8_t>(acpi_state::PowerState::legacyOff)) ||
(state == static_cast<uint8_t>(acpi_state::PowerState::unknown)) ||
(state == static_cast<uint8_t>(acpi_state::PowerState::noChange)))
{
return true;
}
else
{
return false;
}
}
else if (type == acpi_state::PowerStateType::devPowerState)
{
if ((state <= static_cast<uint8_t>(acpi_state::PowerState::s3D3)) ||
(state == static_cast<uint8_t>(acpi_state::PowerState::unknown)) ||
(state == static_cast<uint8_t>(acpi_state::PowerState::noChange)))
{
return true;
}
else
{
return false;
}
}
else
{
return false;
}
return false;
}
} // namespace acpi_state
/** @brief implements Set ACPI Power State command
* @param sysAcpiState - ACPI system power state to set
* @param devAcpiState - ACPI device power state to set
*
* @return IPMI completion code on success
**/
ipmi::RspType<> ipmiSetAcpiPowerState(uint8_t sysAcpiState,
uint8_t devAcpiState)
{
auto s = static_cast<uint8_t>(acpi_state::PowerState::unknown);
sdbusplus::bus_t bus{ipmid_get_sd_bus_connection()};
auto value = acpi_state::ACPIPowerState::ACPI::Unknown;
if (sysAcpiState & acpi_state::stateChanged)
{
// set system power state
s = sysAcpiState & ~acpi_state::stateChanged;
if (!acpi_state::isValidACPIState(
acpi_state::PowerStateType::sysPowerState, s))
{
lg2::error("set_acpi_power sys invalid input, S: {S}", "S", s);
return ipmi::responseParmOutOfRange();
}
// valid input
if (s == static_cast<uint8_t>(acpi_state::PowerState::noChange))
{
lg2::debug("No change for system power state");
}
else
{
auto found = std::find_if(
acpi_state::dbusToIPMI.begin(), acpi_state::dbusToIPMI.end(),
[&s](const auto& iter) {
return (static_cast<uint8_t>(iter.second) == s);
});
value = found->first;
try
{
auto acpiObject =
ipmi::getDbusObject(bus, acpi_state::acpiInterface);
ipmi::setDbusProperty(bus, acpiObject.second, acpiObject.first,
acpi_state::acpiInterface,
acpi_state::sysACPIProp,
convertForMessage(value));
}
catch (const InternalFailure& e)
{
lg2::error("Failed in set ACPI system property: {ERROR}",
"ERROR", e);
return ipmi::responseUnspecifiedError();
}
}
}
else
{
lg2::debug("Do not change system power state");
}
if (devAcpiState & acpi_state::stateChanged)
{
// set device power state
s = devAcpiState & ~acpi_state::stateChanged;
if (!acpi_state::isValidACPIState(
acpi_state::PowerStateType::devPowerState, s))
{
lg2::error("set_acpi_power dev invalid input, S: {S}", "S", s);
return ipmi::responseParmOutOfRange();
}
// valid input
if (s == static_cast<uint8_t>(acpi_state::PowerState::noChange))
{
lg2::debug("No change for device power state");
}
else
{
auto found = std::find_if(
acpi_state::dbusToIPMI.begin(), acpi_state::dbusToIPMI.end(),
[&s](const auto& iter) {
return (static_cast<uint8_t>(iter.second) == s);
});
value = found->first;
try
{
auto acpiObject =
ipmi::getDbusObject(bus, acpi_state::acpiInterface);
ipmi::setDbusProperty(bus, acpiObject.second, acpiObject.first,
acpi_state::acpiInterface,
acpi_state::devACPIProp,
convertForMessage(value));
}
catch (const InternalFailure& e)
{
lg2::error("Failed in set ACPI device property: {ERROR}",
"ERROR", e);
return ipmi::responseUnspecifiedError();
}
}
}
else
{
lg2::debug("Do not change device power state");
}
return ipmi::responseSuccess();
}
/**
* @brief implements the get ACPI power state command
*
* @return IPMI completion code plus response data on success.
* - ACPI system power state
* - ACPI device power state
**/
ipmi::RspType<uint8_t, // acpiSystemPowerState
uint8_t // acpiDevicePowerState
>
ipmiGetAcpiPowerState()
{
uint8_t sysAcpiState;
uint8_t devAcpiState;
sdbusplus::bus_t bus{ipmid_get_sd_bus_connection()};
try
{
auto acpiObject = ipmi::getDbusObject(bus, acpi_state::acpiInterface);
auto sysACPIVal = ipmi::getDbusProperty(
bus, acpiObject.second, acpiObject.first, acpi_state::acpiInterface,
acpi_state::sysACPIProp);
auto sysACPI = acpi_state::ACPIPowerState::convertACPIFromString(
std::get<std::string>(sysACPIVal));
sysAcpiState = static_cast<uint8_t>(acpi_state::dbusToIPMI.at(sysACPI));
auto devACPIVal = ipmi::getDbusProperty(
bus, acpiObject.second, acpiObject.first, acpi_state::acpiInterface,
acpi_state::devACPIProp);
auto devACPI = acpi_state::ACPIPowerState::convertACPIFromString(
std::get<std::string>(devACPIVal));
devAcpiState = static_cast<uint8_t>(acpi_state::dbusToIPMI.at(devACPI));
}
catch (const InternalFailure& e)
{
return ipmi::responseUnspecifiedError();
}
return ipmi::responseSuccess(sysAcpiState, devAcpiState);
}
typedef struct
{
char major;
char minor;
uint8_t aux[4];
} Revision;
/* Use regular expression searching matched pattern X.Y, and convert it to */
/* Major (X) and Minor (Y) version. */
/* Example: */
/* version = 2.14.0-dev */
/* ^ ^ */
/* | |---------------- Minor */
/* |------------------ Major */
/* */
/* Default regex string only tries to match Major and Minor version. */
/* */
/* To match more firmware version info, platforms need to define it own */
/* regex string to match more strings, and assign correct mapping index in */
/* matches array. */
/* */
/* matches[0]: matched index for major ver */
/* matches[1]: matched index for minor ver */
/* matches[2]: matched index for aux[0] (set 0 to skip) */
/* matches[3]: matched index for aux[1] (set 0 to skip) */
/* matches[4]: matched index for aux[2] (set 0 to skip) */
/* matches[5]: matched index for aux[3] (set 0 to skip) */
/* Example: */
/* regex = "([\d]+).([\d]+).([\d]+)-dev-([\d]+)-g([0-9a-fA-F]{2}) */
/* ([0-9a-fA-F]{2})([0-9a-fA-F]{2})([0-9a-fA-F]{2})" */
/* matches = {1,2,5,6,7,8} */
/* version = 2.14.0-dev-750-g37a7c5ad1-dirty */
/* ^ ^ ^ ^ ^ ^ ^ ^ */
/* | | | | | | | | */
/* | | | | | | | |-- Aux byte 3 (0xAD), index 8 */
/* | | | | | | |---- Aux byte 2 (0xC5), index 7 */
/* | | | | | |------ Aux byte 1 (0xA7), index 6 */
/* | | | | |-------- Aux byte 0 (0x37), index 5 */
/* | | | |------------- Not used, index 4 */
/* | | |------------------- Not used, index 3 */
/* | |---------------------- Minor (14), index 2 */
/* |------------------------ Major (2), index 1 */
int convertVersion(std::string s, Revision& rev)
{
static const std::vector<size_t> matches = {
MAJOR_MATCH_INDEX, MINOR_MATCH_INDEX, AUX_0_MATCH_INDEX,
AUX_1_MATCH_INDEX, AUX_2_MATCH_INDEX, AUX_3_MATCH_INDEX};
std::regex fw_regex(FW_VER_REGEX);
std::smatch m;
Revision r = {0};
size_t val;
if (std::regex_search(s, m, fw_regex))
{
if (m.size() < *std::max_element(matches.begin(), matches.end()))
{ // max index higher than match count
return -1;
}
// convert major
{
std::string str = m[matches[0]].str();
const auto& [ptr, ec] =
std::from_chars(str.data(), str.data() + str.size(), val);
if (ec != std::errc() || ptr != str.data() + str.size())
{ // failed to convert major string
return -1;
}
if (val >= 2000)
{ // For the platforms use year as major version, it would expect to
// have major version between 0 - 99. If the major version is
// greater than or equal to 2000, it is treated as a year and
// converted to 0 - 99.
r.major = val % 100;
}
else
{
r.major = val & 0x7F;
}
}
// convert minor
{
std::string str = m[matches[1]].str();
const auto& [ptr, ec] =
std::from_chars(str.data(), str.data() + str.size(), val);
if (ec != std::errc() || ptr != str.data() + str.size())
{ // failed to convert minor string
return -1;
}
r.minor = val & 0xFF;
}
// convert aux bytes
{
size_t i;
for (i = 0; i < 4; i++)
{
if (matches[i + 2] == 0)
{
continue;
}
std::string str = m[matches[i + 2]].str();
const char* cstr = str.c_str();
auto [ptr,
ec] = std::from_chars(cstr, cstr + str.size(), val, 16);
if (ec != std::errc() || ptr != cstr + str.size())
{ // failed to convert aux byte string
break;
}
r.aux[i] = val & 0xFF;
}
if (i != 4)
{ // something wrong durign converting aux bytes
return -1;
}
}
// all matched
rev = r;
return 0;
}
return -1;
}
/* @brief: Implement the Get Device ID IPMI command per the IPMI spec
* @param[in] ctx - shared_ptr to an IPMI context struct
*
* @returns IPMI completion code plus response data
* - Device ID (manufacturer defined)
* - Device revision[4 bits]; reserved[3 bits]; SDR support[1 bit]
* - FW revision major[7 bits] (binary encoded); available[1 bit]
* - FW Revision minor (BCD encoded)
* - IPMI version (0x02 for IPMI 2.0)
* - device support (bitfield of supported options)
* - MFG IANA ID (3 bytes)
* - product ID (2 bytes)
* - AUX info (4 bytes)
*/
ipmi::RspType<uint8_t, // Device ID
uint8_t, // Device Revision
uint8_t, // Firmware Revision Major
uint8_t, // Firmware Revision minor
uint8_t, // IPMI version
uint8_t, // Additional device support
uint24_t, // MFG ID
uint16_t, // Product ID
uint32_t // AUX info
>
ipmiAppGetDeviceId([[maybe_unused]] ipmi::Context::ptr ctx)
{
static struct
{
uint8_t id;
uint8_t revision;
uint8_t fw[2];
uint8_t ipmiVer;
uint8_t addnDevSupport;
uint24_t manufId;
uint16_t prodId;
uint32_t aux;
} devId;
static bool dev_id_initialized = false;
static bool defaultActivationSetting = true;
const char* filename = "/usr/share/ipmi-providers/dev_id.json";
constexpr auto ipmiDevIdStateShift = 7;
constexpr auto ipmiDevIdFw1Mask = ~(1 << ipmiDevIdStateShift);
#ifdef GET_DBUS_ACTIVE_SOFTWARE
static bool haveBMCVersion = false;
if (!haveBMCVersion || !dev_id_initialized)
{
int r = -1;
Revision rev = {0, 0, {0, 0, 0, 0}};
try
{
auto version = getActiveSoftwareVersionInfo(ctx);
r = convertVersion(version, rev);
}
catch (const std::exception& e)
{
lg2::error("error message: {ERROR}", "ERROR", e);
}
if (r >= 0)
{
// bit7 identifies if the device is available
// 0=normal operation
// 1=device firmware, SDR update,
// or self-initialization in progress.
// The availability may change in run time, so mask here
// and initialize later.
devId.fw[0] = rev.major & ipmiDevIdFw1Mask;
rev.minor = (rev.minor > 99 ? 99 : rev.minor);
devId.fw[1] = rev.minor % 10 + (rev.minor / 10) * 16;
std::memcpy(&devId.aux, rev.aux, sizeof(rev.aux));
haveBMCVersion = true;
}
}
#endif
if (!dev_id_initialized)
{
// IPMI Spec version 2.0
devId.ipmiVer = 2;
std::ifstream devIdFile(filename);
if (devIdFile.is_open())
{
auto data = nlohmann::json::parse(devIdFile, nullptr, false);
if (!data.is_discarded())
{
devId.id = data.value("id", 0);
devId.revision = data.value("revision", 0);
devId.addnDevSupport = data.value("addn_dev_support", 0);
devId.manufId = data.value("manuf_id", 0);
devId.prodId = data.value("prod_id", 0);
#ifdef GET_DBUS_ACTIVE_SOFTWARE
if (!(AUX_0_MATCH_INDEX || AUX_1_MATCH_INDEX ||
AUX_2_MATCH_INDEX || AUX_3_MATCH_INDEX))
#endif
{
devId.aux = data.value("aux", 0);
}
if (data.contains("firmware_revision"))
{
const auto& firmwareRevision = data.at("firmware_revision");
if (firmwareRevision.contains("major"))
{
firmwareRevision.at("major").get_to(devId.fw[0]);
}
if (firmwareRevision.contains("minor"))
{
firmwareRevision.at("minor").get_to(devId.fw[1]);
}
}
// Set the availablitity of the BMC.
defaultActivationSetting = data.value("availability", true);
// Don't read the file every time if successful
dev_id_initialized = true;
}
else
{
lg2::error("Device ID JSON parser failure");
return ipmi::responseUnspecifiedError();
}
}
else
{
lg2::error("Device ID file not found");
return ipmi::responseUnspecifiedError();
}
}
// Set availability to the actual current BMC state
devId.fw[0] &= ipmiDevIdFw1Mask;
if (!getCurrentBmcStateWithFallback(defaultActivationSetting))
{
devId.fw[0] |= (1 << ipmiDevIdStateShift);
}
return ipmi::responseSuccess(
devId.id, devId.revision, devId.fw[0], devId.fw[1], devId.ipmiVer,
devId.addnDevSupport, devId.manufId, devId.prodId, devId.aux);
}
auto ipmiAppGetSelfTestResults() -> ipmi::RspType<uint8_t, uint8_t>
{
// Byte 2:
// 55h - No error.
// 56h - Self Test function not implemented in this controller.
// 57h - Corrupted or inaccesssible data or devices.
// 58h - Fatal hardware error.
// FFh - reserved.
// all other: Device-specific 'internal failure'.
// Byte 3:
// For byte 2 = 55h, 56h, FFh: 00h
// For byte 2 = 58h, all other: Device-specific
// For byte 2 = 57h: self-test error bitfield.
// Note: returning 57h does not imply that all test were run.
// [7] 1b = Cannot access SEL device.
// [6] 1b = Cannot access SDR Repository.
// [5] 1b = Cannot access BMC FRU device.
// [4] 1b = IPMB signal lines do not respond.
// [3] 1b = SDR Repository empty.
// [2] 1b = Internal Use Area of BMC FRU corrupted.
// [1] 1b = controller update 'boot block' firmware corrupted.
// [0] 1b = controller operational firmware corrupted.
constexpr uint8_t notImplemented = 0x56;
constexpr uint8_t zero = 0;
return ipmi::responseSuccess(notImplemented, zero);
}
static constexpr size_t uuidBinaryLength = 16;
static std::array<uint8_t, uuidBinaryLength> rfc4122ToIpmi(std::string rfc4122)
{
using Argument = xyz::openbmc_project::common::InvalidArgument;
// UUID is in RFC4122 format. Ex: 61a39523-78f2-11e5-9862-e6402cfc3223
// Per IPMI Spec 2.0 need to convert to 16 hex bytes and reverse the byte
// order
// Ex: 0x2332fc2c40e66298e511f2782395a361
constexpr size_t uuidHexLength = (2 * uuidBinaryLength);
constexpr size_t uuidRfc4122Length = (uuidHexLength + 4);
std::array<uint8_t, uuidBinaryLength> uuid;
if (rfc4122.size() == uuidRfc4122Length)
{
rfc4122.erase(std::remove(rfc4122.begin(), rfc4122.end(), '-'),
rfc4122.end());
}
if (rfc4122.size() != uuidHexLength)
{
elog<InvalidArgument>(Argument::ARGUMENT_NAME("rfc4122"),
Argument::ARGUMENT_VALUE(rfc4122.c_str()));
}
for (size_t ind = 0; ind < uuidHexLength; ind += 2)
{
char v[3];
v[0] = rfc4122[ind];
v[1] = rfc4122[ind + 1];
v[2] = 0;
size_t err;
long b;
try
{
b = std::stoul(v, &err, 16);
}
catch (const std::exception& e)
{
elog<InvalidArgument>(Argument::ARGUMENT_NAME("rfc4122"),
Argument::ARGUMENT_VALUE(rfc4122.c_str()));
}
// check that exactly two ascii bytes were converted
if (err != 2)
{
elog<InvalidArgument>(Argument::ARGUMENT_NAME("rfc4122"),
Argument::ARGUMENT_VALUE(rfc4122.c_str()));
}
uuid[uuidBinaryLength - (ind / 2) - 1] = static_cast<uint8_t>(b);
}
return uuid;
}
auto ipmiAppGetDeviceGuid()
-> ipmi::RspType<std::array<uint8_t, uuidBinaryLength>>
{
// return a fixed GUID based on /etc/machine-id
// This should match the /redfish/v1/Managers/bmc's UUID data
// machine specific application ID (for BMC ID)
// generated by systemd-id128 -p new as per man page
static constexpr sd_id128_t bmcUuidAppId = SD_ID128_MAKE(
e0, e1, 73, 76, 64, 61, 47, da, a5, 0c, d0, cc, 64, 12, 45, 78);
sd_id128_t bmcUuid;
// create the UUID from /etc/machine-id via the systemd API
sd_id128_get_machine_app_specific(bmcUuidAppId, &bmcUuid);
char bmcUuidCstr[SD_ID128_STRING_MAX];
std::string systemUuid = sd_id128_to_string(bmcUuid, bmcUuidCstr);
std::array<uint8_t, uuidBinaryLength> uuid = rfc4122ToIpmi(systemUuid);
return ipmi::responseSuccess(uuid);
}
auto ipmiAppGetBtCapabilities()
-> ipmi::RspType<uint8_t, uint8_t, uint8_t, uint8_t, uint8_t>
{
// Per IPMI 2.0 spec, the input and output buffer size must be the max
// buffer size minus one byte to allocate space for the length byte.
constexpr uint8_t nrOutstanding = 0x01;
constexpr uint8_t inputBufferSize = MAX_IPMI_BUFFER - 1;
constexpr uint8_t outputBufferSize = MAX_IPMI_BUFFER - 1;
constexpr uint8_t transactionTime = 0x0A;
constexpr uint8_t nrRetries = 0x01;
return ipmi::responseSuccess(nrOutstanding, inputBufferSize,
outputBufferSize, transactionTime, nrRetries);
}
auto ipmiAppGetSystemGuid(ipmi::Context::ptr& ctx)
-> ipmi::RspType<std::array<uint8_t, 16>>
{
static constexpr auto uuidInterface = "xyz.openbmc_project.Common.UUID";
static constexpr auto uuidProperty = "UUID";
// Get the Inventory object implementing BMC interface
ipmi::DbusObjectInfo objectInfo{};
boost::system::error_code ec = ipmi::getDbusObject(
ctx, uuidInterface, ipmi::sensor::inventoryRoot, objectInfo);
if (ec.value())
{
lg2::error("Failed to locate System UUID object, "
"interface: {INTERFACE}, error: {ERROR}",
"INTERFACE", uuidInterface, "ERROR", ec.message());
}
// Read UUID property value from bmcObject
// UUID is in RFC4122 format Ex: 61a39523-78f2-11e5-9862-e6402cfc3223
std::string rfc4122Uuid{};
ec = ipmi::getDbusProperty(ctx, objectInfo.second, objectInfo.first,
uuidInterface, uuidProperty, rfc4122Uuid);
if (ec.value())
{
lg2::error("Failed to read System UUID property, "
"interface: {INTERFACE}, property: {PROPERTY}, "
"error: {ERROR}",
"INTERFACE", uuidInterface, "PROPERTY", uuidProperty,
"ERROR", ec.message());
return ipmi::responseUnspecifiedError();
}
std::array<uint8_t, 16> uuid;
try
{
// convert to IPMI format
uuid = rfc4122ToIpmi(rfc4122Uuid);
}
catch (const InvalidArgument& e)
{
lg2::error("Failed in parsing BMC UUID property, "
"interface: {INTERFACE}, property: {PROPERTY}, "
"value: {VALUE}, error: {ERROR}",
"INTERFACE", uuidInterface, "PROPERTY", uuidProperty,
"VALUE", rfc4122Uuid, "ERROR", e);
return ipmi::responseUnspecifiedError();
}
return ipmi::responseSuccess(uuid);
}
/**
* @brief set the session state as teardown
*
* This function is to set the session state to tear down in progress if the
* state is active.
*
* @param[in] busp - Dbus obj
* @param[in] service - service name
* @param[in] obj - object path
*
* @return success completion code if it sets the session state to
* tearDownInProgress else return the corresponding error completion code.
**/
uint8_t setSessionState(std::shared_ptr<sdbusplus::asio::connection>& busp,
const std::string& service, const std::string& obj)
{
try
{
uint8_t sessionState = std::get<uint8_t>(ipmi::getDbusProperty(
*busp, service, obj, session::sessionIntf, "State"));
if (sessionState == static_cast<uint8_t>(session::State::active))
{
ipmi::setDbusProperty(
*busp, service, obj, session::sessionIntf, "State",
static_cast<uint8_t>(session::State::tearDownInProgress));
return ipmi::ccSuccess;
}
}
catch (const std::exception& e)
{
lg2::error("Failed in getting session state property, "
"service: {SERVICE}, object path: {OBJECT_PATH}, "
"interface: {INTERFACE}, error: {ERROR}",
"SERVICE", service, "OBJECT_PATH", obj, "INTERFACE",
session::sessionIntf, "ERROR", e);
return ipmi::ccUnspecifiedError;
}
return ipmi::ccInvalidFieldRequest;
}
ipmi::RspType<> ipmiAppCloseSession(uint32_t reqSessionId,
std::optional<uint8_t> requestSessionHandle)
{
auto busp = getSdBus();
uint8_t reqSessionHandle =
requestSessionHandle.value_or(session::defaultSessionHandle);
if (reqSessionId == session::sessionZero &&
reqSessionHandle == session::defaultSessionHandle)
{
return ipmi::response(session::ccInvalidSessionId);
}
if (reqSessionId == session::sessionZero &&
reqSessionHandle == session::invalidSessionHandle)
{
return ipmi::response(session::ccInvalidSessionHandle);
}
if (reqSessionId != session::sessionZero &&
reqSessionHandle != session::defaultSessionHandle)
{
return ipmi::response(ipmi::ccInvalidFieldRequest);
}
try
{
ipmi::ObjectTree objectTree = ipmi::getAllDbusObjects(
*busp, session::sessionManagerRootPath, session::sessionIntf);
for (auto& objectTreeItr : objectTree)
{
const std::string obj = objectTreeItr.first;
if (isSessionObjectMatched(obj, reqSessionId, reqSessionHandle))
{
auto& serviceMap = objectTreeItr.second;
// Session id and session handle are unique for each session.
// Session id and handler are retrived from the object path and
// object path will be unique for each session. Checking if
// multiple objects exist with same object path under multiple
// services.
if (serviceMap.size() != 1)
{
return ipmi::responseUnspecifiedError();
}
auto itr = serviceMap.begin();
const std::string service = itr->first;
return ipmi::response(setSessionState(busp, service, obj));
}
}
}
catch (const sdbusplus::exception_t& e)
{
lg2::error("Failed to fetch object from dbus, "
"interface: {INTERFACE}, error: {ERROR}",
"INTERFACE", session::sessionIntf, "ERROR", e);
return ipmi::responseUnspecifiedError();
}