Disable Metal < 200, commented unused and deprecated code

include/types.h

@@ -1640,8 +1640,8 @@ typedef struct hc_device_param
 
   #if defined (__APPLE__)
 
-  int               mtl_major;
-  int               mtl_minor;
+  //int               mtl_major;
+  //int               mtl_minor;
 
   int               device_physical_location;
   int               device_location_number;

src/backend.c

@@ -4507,20 +4507,40 @@ int backend_ctx_init (hashcat_ctx_t *hashcat_ctx)
 
       backend_ctx->metal_runtimeVersion = atoi (backend_ctx->metal_runtimeVersionStr);
 
-      if (user_options->force == false)
+      // disable metal < 200
+
+      if (backend_ctx->metal_runtimeVersion < 200)
       {
-        if (backend_ctx->metal_runtimeVersion < 300)
+        event_log_warning (hashcat_ctx, "Unsupported Apple Metal runtime version '%s' detected! Falling back to OpenCL...", backend_ctx->metal_runtimeVersionStr);
+        event_log_warning (hashcat_ctx, NULL);
+
+        rc_metal_init = -1;
+
+        backend_ctx->rc_metal_init = rc_metal_init;
+
+        backend_ctx->mtl = NULL;
+
+        mtl_close (hashcat_ctx);
+      }
+      else
+      {
+        if (user_options->force == false)
         {
-          event_log_warning (hashcat_ctx, "Unsupported Apple Metal runtime version '%s' detected! Falling back to OpenCL...", backend_ctx->metal_runtimeVersionStr);
-          event_log_warning (hashcat_ctx, NULL);
+          // disable metal < 300
 
-          rc_metal_init = -1;
+          if (backend_ctx->metal_runtimeVersion < 300)
+          {
+            event_log_warning (hashcat_ctx, "Unsupported Apple Metal runtime version '%s' detected! Falling back to OpenCL...", backend_ctx->metal_runtimeVersionStr);
+            event_log_warning (hashcat_ctx, NULL);
+
+            rc_metal_init = -1;
 
-          backend_ctx->rc_metal_init = rc_metal_init;
+            backend_ctx->rc_metal_init = rc_metal_init;
 
-          backend_ctx->mtl = NULL;
+            backend_ctx->mtl = NULL;
 
-          mtl_close (hashcat_ctx);
+            mtl_close (hashcat_ctx);
+          }
         }
       }
     }
@@ -5832,29 +5852,28 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
       device_param->opencl_device_vendor     = strdup ("Apple");
       device_param->opencl_device_c_version  = "";
 
+      /* unused and deprecated
+
       // sm_minor, sm_major
 
       int mtl_major = 0;
       int mtl_minor = 0;
 
-      /* unused and deprecated
       if (hc_mtlDeviceGetAttribute (hashcat_ctx, &mtl_major, MTL_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MAJOR, metal_device) == -1)
       {
         device_param->skipped = true;
         continue;
       }
-      */
 
-      /* unused and deprecated
       if (hc_mtlDeviceGetAttribute (hashcat_ctx, &mtl_minor, MTL_DEVICE_ATTRIBUTE_COMPUTE_CAPABILITY_MINOR, metal_device) == -1)
       {
         device_param->skipped = true;
         continue;
       }
-      */
 
       device_param->mtl_major = mtl_major;
       device_param->mtl_minor = mtl_minor;
+      */
 
       // device_name
 

src/ext_metal.m

@@ -16,6 +16,7 @@
 #include <Foundation/Foundation.h>
 #include <Metal/Metal.h>
 
+/*
 typedef NS_ENUM(NSUInteger, hc_mtlFeatureSet)
 {
   MTL_FEATURESET_MACOS_GPUFAMILY_1_V1 = 10000,
@@ -25,6 +26,7 @@ typedef NS_ENUM(NSUInteger, hc_mtlFeatureSet)
   MTL_FEATURESET_MACOS_GPUFAMILY_2_V1 = 10005,
 
 } metalDeviceFeatureSet_macOS_t;
+*/
 
 typedef NS_ENUM(NSUInteger, hc_mtlLanguageVersion)
 {

src/terminal.c

@@ -1234,8 +1234,8 @@ void backend_info (hashcat_ctx_t *hashcat_ctx)
       const hc_device_param_t *device_param = backend_ctx->devices_param + backend_devices_idx;
 
       int   device_id                 = device_param->device_id;
-      int   device_mtl_maj            = device_param->mtl_major;
-      int   device_mtl_min            = device_param->mtl_minor;
+      //int   device_mtl_maj            = device_param->mtl_major;
+      //int   device_mtl_min            = device_param->mtl_minor;
       int   device_max_transfer_rate  = device_param->device_max_transfer_rate;
       int   device_physical_location  = device_param->device_physical_location;
       int   device_location_number    = device_param->device_location_number;
@@ -1285,6 +1285,7 @@ void backend_info (hashcat_ctx_t *hashcat_ctx)
         default:                              event_log_info (hashcat_ctx, "  Phys.Location..: N/A"); break;
       }
 
+      /*
       if (device_mtl_maj > 0 && device_mtl_min > 0)
       {
         event_log_info (hashcat_ctx, "  Feature.Set....: macOS GPU Family %u v%u", device_mtl_maj, device_mtl_min);
@@ -1293,6 +1294,7 @@ void backend_info (hashcat_ctx_t *hashcat_ctx)
       {
         event_log_info (hashcat_ctx, "  Feature.Set....: N/A");
       }
+      */
 
       event_log_info (hashcat_ctx, "  Registry.ID....: %u", device_registryID);