Initialize CUDA devices and some first attribute queries

include/backend.h

@@ -39,6 +39,12 @@ int hc_nvrtcGetProgramLog        (hashcat_ctx_t *hashcat_ctx, nvrtcProgram prog,
 int hc_nvrtcGetPTXSize           (hashcat_ctx_t *hashcat_ctx, nvrtcProgram prog, size_t *ptxSizeRet);
 int hc_nvrtcGetPTX               (hashcat_ctx_t *hashcat_ctx, nvrtcProgram prog, char *ptx);
 
+int hc_cuInit                    (hashcat_ctx_t *hashcat_ctx, unsigned int Flags);
+int hc_cuDeviceGetAttribute      (hashcat_ctx_t *hashcat_ctx, int *pi, CUdevice_attribute attrib, CUdevice dev);
+int hc_cuDeviceGetCount          (hashcat_ctx_t *hashcat_ctx, int *count);
+int hc_cuDeviceGet               (hashcat_ctx_t *hashcat_ctx, CUdevice *device, int ordinal);
+int hc_cuDeviceGetName           (hashcat_ctx_t *hashcat_ctx, char *name, int len, CUdevice dev);
+
 int hc_clBuildProgram            (hashcat_ctx_t *hashcat_ctx, cl_program program, cl_uint num_devices, const cl_device_id *device_list, const char *options, void (CL_CALLBACK *pfn_notify) (cl_program program, void *user_data), void *user_data);
 int hc_clCreateBuffer            (hashcat_ctx_t *hashcat_ctx, cl_context context, cl_mem_flags flags, size_t size, void *host_ptr, cl_mem *mem);
 int hc_clCreateCommandQueue      (hashcat_ctx_t *hashcat_ctx, cl_context context, cl_device_id device, cl_command_queue_properties properties, cl_command_queue *command_queue);

include/types.h

@@ -1340,6 +1340,18 @@ typedef struct backend_ctx
   void               *cuda;
   void               *nvrtc;
 
+  int                *backend_device_from_cuda;   // from cuda device index to backend device index
+  int                *backend_device_to_cuda;     // from backend device index to cuda device index
+  int                *backend_device_from_opencl; // from opencl device index to backend device index
+  int                *backend_device_to_opencl;   // from backend device index to opencl device index
+
+  int                 backend_devices_cnt;
+  int                 backend_devices_active;
+  int                 cuda_devices_cnt;
+  int                 cuda_devices_active;
+  int                 opencl_devices_cnt;
+  int                 opencl_devices_active;
+
   cl_uint             platforms_cnt;
   cl_platform_id     *platforms;
   char              **platforms_vendor;