public static bool TryCopyNativeLibIfDriverVersionsMatch(ITracer tracer, PhysicalFileSystem fileSystem, out string copyNativeDllError)
{
string system32NativeLibraryPath = Path.Combine(Environment.SystemDirectory, ProjFSNativeLibFileName);
if (fileSystem.FileExists(system32NativeLibraryPath))
{
copyNativeDllError = $"{ProjFSNativeLibFileName} already exists at {system32NativeLibraryPath}";
return(false);
}
string gvfsProcessLocation = ProcessHelper.GetCurrentProcessLocation();
string nonInboxNativeLibInstallPath;
string packagedNativeLibPath;
GetNativeLibPaths(gvfsProcessLocation, out packagedNativeLibPath, out nonInboxNativeLibInstallPath);
if (fileSystem.FileExists(nonInboxNativeLibInstallPath))
{
copyNativeDllError = $"{ProjFSNativeLibFileName} already exists at {nonInboxNativeLibInstallPath}";
return(false);
}
if (!fileSystem.FileExists(packagedNativeLibPath))
{
copyNativeDllError = $"{packagedNativeLibPath} not found, no {ProjFSNativeLibFileName} available to copy";
return(false);
}
string packagedPrjfltDriverPath = Path.Combine(gvfsProcessLocation, "Filter", DriverFileName);
if (!fileSystem.FileExists(packagedPrjfltDriverPath))
{
copyNativeDllError = $"{packagedPrjfltDriverPath} not found, unable to validate that packaged driver matches installed driver";
return(false);
}
string system32PrjfltDriverPath = Path.Combine(Environment.ExpandEnvironmentVariables(System32DriversRoot), DriverFileName);
if (!fileSystem.FileExists(system32PrjfltDriverPath))
{
copyNativeDllError = $"{system32PrjfltDriverPath} not found, unable to validate that packaged driver matches installed driver";
return(false);
}
FileVersionInfo packagedDriverVersion;
FileVersionInfo system32DriverVersion;
try
{
packagedDriverVersion = fileSystem.GetVersionInfo(packagedPrjfltDriverPath);
system32DriverVersion = fileSystem.GetVersionInfo(system32PrjfltDriverPath);
if (!fileSystem.FileVersionsMatch(packagedDriverVersion, system32DriverVersion))
{
copyNativeDllError = $"Packaged sys FileVersion '{packagedDriverVersion.FileVersion}' does not match System32 sys FileVersion '{system32DriverVersion.FileVersion}'";
return(false);
}
if (!fileSystem.ProductVersionsMatch(packagedDriverVersion, system32DriverVersion))
{
copyNativeDllError = $"Packaged sys ProductVersion '{packagedDriverVersion.ProductVersion}' does not match System32 sys ProductVersion '{system32DriverVersion.ProductVersion}'";
return(false);
}
}
catch (FileNotFoundException e)
{
EventMetadata metadata = CreateEventMetadata(e);
tracer.RelatedWarning(
metadata,
$"{nameof(TryCopyNativeLibIfDriverVersionsMatch)}: Exception caught while comparing sys versions");
copyNativeDllError = $"Exception caught while comparing sys versions: {e.Message}";
return(false);
}
EventMetadata driverVersionMetadata = CreateEventMetadata();
driverVersionMetadata.Add($"{nameof(packagedDriverVersion)}.FileVersion", packagedDriverVersion.FileVersion.ToString());
driverVersionMetadata.Add($"{nameof(system32DriverVersion)}.FileVersion", system32DriverVersion.FileVersion.ToString());
driverVersionMetadata.Add($"{nameof(packagedDriverVersion)}.ProductVersion", packagedDriverVersion.ProductVersion.ToString());
driverVersionMetadata.Add($"{nameof(system32DriverVersion)}.ProductVersion", system32DriverVersion.ProductVersion.ToString());
tracer.RelatedInfo(driverVersionMetadata, $"{nameof(TryCopyNativeLibIfDriverVersionsMatch)}: Copying native library");
if (!TryCopyNativeLibToNonInboxInstallLocation(tracer, fileSystem, gvfsProcessLocation))
{
copyNativeDllError = "Failed to copy native library";
return(false);
}
copyNativeDllError = null;
return(true);
}