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#include "guid.hpp"
#include <iostream>
#include <sstream>
#include <string>
#include <host-ipmid/ipmid-api.h>
#include <mapper.h>
namespace command
{
std::array<uint8_t, BMC_GUID_LEN> getSystemGUID()
{
// Canned System GUID for QEMU where the Chassis DBUS object is not
// populated
std::array<uint8_t, BMC_GUID_LEN> guid = { 0x01, 0x02, 0x03, 0x04,
0x05, 0x06, 0x07, 0x08,
0x09, 0x0A, 0x0B, 0x0C,
0x0D, 0x0E, 0x0F, 0x10
};
constexpr auto objname = "/org/openbmc/control/chassis0";
constexpr auto interface = "org.freedesktop.DBus.Properties";
constexpr auto chassisIntf = "org.openbmc.control.Chassis";
sd_bus_message* reply = nullptr;
sd_bus_error error = SD_BUS_ERROR_NULL;
sd_bus* bus = ipmid_get_sd_bus_connection();
int rc = 0;
char* uuid = nullptr;
char* busname = nullptr;
do
{
rc = mapper_get_service(bus, objname, &busname);
if (rc < 0)
{
std::cerr << "Failed to get " << objname << " bus name: "
<< strerror(-rc) << "\n";
break;
}
rc = sd_bus_call_method(bus, busname, objname, interface, "Get", &error,
&reply, "ss", chassisIntf, "uuid");
if (rc < 0)
{
std::cerr << "Failed to call Get Method:" << strerror(-rc) << "\n";
break;
}
rc = sd_bus_message_read(reply, "v", "s", &uuid);
if (rc < 0 || uuid == NULL)
{
std::cerr << "Failed to get a response:" << strerror(-rc) << "\n";
break;
}
std::string readUUID(uuid);
auto len = readUUID.length();
for (size_t iter = 0, inc = 0;
iter < len && inc < BMC_GUID_LEN; iter += 2, inc++)
{
uint8_t hexVal = std::strtoul(readUUID.substr(iter, 2).c_str(),
NULL, 16);
guid[inc] = hexVal;
}
}
while (0);
sd_bus_error_free(&error);
reply = sd_bus_message_unref(reply);
free(busname);
return guid;
}
} // namespace command
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