/** Check whether the sysfs block entry is valid for a DVD device and
* initialise the string data members for the object. We try to get all
* the information we need from sysfs if possible, to avoid unnecessarily
* poking the device, and if that fails we fall back to an SCSI INQUIRY
* command. */
void validateAndInitForDVD()
{
char szVendor[128], szModel[128];
ssize_t cchVendor, cchModel;
int64_t type = RTLinuxSysFsReadIntFile(10, "block/%s/device/type",
mpcszName);
if (type >= 0 && type != TYPE_ROM)
return;
if (type == TYPE_ROM)
{
cchVendor = RTLinuxSysFsReadStrFile(szVendor, sizeof(szVendor),
"block/%s/device/vendor",
mpcszName);
if (cchVendor >= 0)
{
cchModel = RTLinuxSysFsReadStrFile(szModel, sizeof(szModel),
"block/%s/device/model",
mpcszName);
if (cchModel >= 0)
{
misValid = true;
dvdCreateDeviceStrings(szVendor, szModel,
mszDesc, sizeof(mszDesc),
mszUdi, sizeof(mszUdi));
return;
}
}
}
if (!noProbe())
probeAndInitForDVD();
}
/** Check whether the sysfs block entry is valid for a DVD device and
* initialise the string data members for the object. We try to get all
* the information we need from sysfs if possible, to avoid unnecessarily
* poking the device, and if that fails we fall back to an SCSI INQUIRY
* command. */
void validateAndInitForDVD()
{
char szVendor[128], szModel[128];
int64_t type = 0;
int rc = RTLinuxSysFsReadIntFile(10, &type, "block/%s/device/type", mpcszName);
if (RT_SUCCESS(rc) && type != TYPE_ROM)
return;
if (type == TYPE_ROM)
{
rc = RTLinuxSysFsReadStrFile(szVendor, sizeof(szVendor), NULL,
"block/%s/device/vendor", mpcszName);
if (RT_SUCCESS(rc))
{
rc = RTLinuxSysFsReadStrFile(szModel, sizeof(szModel), NULL,
"block/%s/device/model", mpcszName);
if (RT_SUCCESS(rc))
{
misValid = true;
dvdCreateDeviceStrings(szVendor, szModel,
mszDesc, sizeof(mszDesc),
mszUdi, sizeof(mszUdi));
return;
}
}
}
if (!noProbe())
probeAndInitForDVD();
}
RTDECL(int) RTSystemQueryDmiString(RTSYSDMISTR enmString, char *pszBuf, size_t cbBuf)
{
AssertPtrReturn(pszBuf, VERR_INVALID_POINTER);
AssertReturn(cbBuf > 0, VERR_INVALID_PARAMETER);
*pszBuf = '\0';
AssertReturn(enmString > RTSYSDMISTR_INVALID && enmString < RTSYSDMISTR_END, VERR_INVALID_PARAMETER);
const char *pszSysFsName;
switch (enmString)
{
case RTSYSDMISTR_PRODUCT_NAME: pszSysFsName = "id/product_name"; break;
case RTSYSDMISTR_PRODUCT_VERSION: pszSysFsName = "id/product_version"; break;
case RTSYSDMISTR_PRODUCT_UUID: pszSysFsName = "id/product_uuid"; break;
case RTSYSDMISTR_PRODUCT_SERIAL: pszSysFsName = "id/product_serial"; break;
case RTSYSDMISTR_MANUFACTURER: pszSysFsName = "id/sys_vendor"; break;
default:
return VERR_NOT_SUPPORTED;
}
size_t cbRead = 0;
int rc = RTLinuxSysFsReadStrFile(pszBuf, cbBuf, &cbRead, "devices/virtual/dmi/%s", pszSysFsName);
if (RT_FAILURE(rc) && rc != VERR_BUFFER_OVERFLOW)
rc = RTLinuxSysFsReadStrFile(pszBuf, cbBuf, &cbRead, "class/dmi/%s", pszSysFsName);
if (RT_FAILURE(rc) && rc != VERR_BUFFER_OVERFLOW)
{
switch (rc)
{
case VINF_SUCCESS:
AssertFailed();
break;
case VERR_FILE_NOT_FOUND:
case VERR_PATH_NOT_FOUND:
case VERR_IS_A_DIRECTORY:
rc = VERR_NOT_SUPPORTED;
break;
case VERR_PERMISSION_DENIED:
case VERR_ACCESS_DENIED:
rc = VERR_ACCESS_DENIED;
break;
}
}
return rc;
}