Pure black magic to workaround 100% CPU usage bug in NVidias OpenCL runtime on Linux

[hashcat.git] / src / hashcat.c

diff --git a/src/hashcat.c b/src/hashcat.c
index 55a26a0..eafc6f6 100644 (file)
--- a/src/hashcat.c
+++ b/src/hashcat.c
@@ -1,4 +1,4 @@
-/**
+ /**
  * Authors.....: Jens Steube <jens.steube@gmail.com>
  *               Gabriele Gristina <matrix@hashcat.net>
  *               magnum <john.magnum@hushmail.com>
@@ -150,6 +150,8 @@ double TARGET_MS_PROFILE[4]     = { 2, 12, 96, 480 };
 
 #define NUM_DEFAULT_BENCHMARK_ALGORITHMS 143
 
+#define NVIDIA_100PERCENTCPU_WORKAROUND 100
+
 #define global_free(attr)       \
 {                               \
   myfree ((void *) data.attr);  \
@@ -576,6 +578,7 @@ const char *USAGE_BIG[] =
   "     22 | Juniper Netscreen/SSG (ScreenOS)                 | Operating-Systems",
   "    501 | Juniper IVE                                      | Operating-Systems",
   "   5800 | Android PIN                                      | Operating-Systems",
+  "  13800 | Windows 8+ phone PIN/Password                    | Operating-Systems",
   "   8100 | Citrix Netscaler                                 | Operating-Systems",
   "   8500 | RACF                                             | Operating-Systems",
   "   7200 | GRUB 2                                           | Operating-Systems",
@@ -5445,8 +5448,25 @@ void SetConsoleWindowSize (const int x)
 }
 #endif
 
+#ifdef _POSIX
+int (*clock_gettime_orig) (clockid_t clk_id, struct timespec *tp);
+
+int clock_gettime (clockid_t clk_id, struct timespec *tp)
+{
+  int r = clock_gettime_orig (clk_id, tp);
+
+  usleep (NVIDIA_100PERCENTCPU_WORKAROUND);
+
+  return r;
+}
+#endif
+
 int main (int argc, char **argv)
 {
+  #ifdef _POSIX
+  clock_gettime_orig = dlsym (RTLD_NEXT, "clock_gettime");
+  #endif
+
   #ifdef _WIN
   SetConsoleWindowSize (132);
   #endif
@@ -6124,7 +6144,7 @@ int main (int argc, char **argv)
     return (-1);
   }
 
-  if (hash_mode_chgd && hash_mode > 13799) // just added to remove compiler warnings for hash_mode_chgd
+  if (hash_mode_chgd && hash_mode > 13800) // just added to remove compiler warnings for hash_mode_chgd
   {
     log_error ("ERROR: Invalid hash-type specified");
 
@@ -10797,6 +10817,26 @@ int main (int argc, char **argv)
                    dgst_pos3   = 3;
                    break;
 
+      case 13800:  hash_type   = HASH_TYPE_SHA256;
+                   salt_type   = SALT_TYPE_EMBEDDED;
+                   attack_exec = ATTACK_EXEC_INSIDE_KERNEL;
+                   opts_type   = OPTS_TYPE_PT_GENERATE_BE
+                               | OPTS_TYPE_PT_UNICODE;
+                   kern_type   = KERN_TYPE_WIN8PHONE;
+                   dgst_size   = DGST_SIZE_4_8;
+                   parse_func  = win8phone_parse_hash;
+                   sort_by_digest = sort_by_digest_4_8;
+                   opti_type   = OPTI_TYPE_ZERO_BYTE
+                               | OPTI_TYPE_PRECOMPUTE_INIT
+                               | OPTI_TYPE_EARLY_SKIP
+                               | OPTI_TYPE_NOT_ITERATED
+                               | OPTI_TYPE_RAW_HASH;
+                   dgst_pos0   = 3;
+                   dgst_pos1   = 7;
+                   dgst_pos2   = 2;
+                   dgst_pos3   = 6;
+                   break;
+
 
       default:     usage_mini_print (PROGNAME); return (-1);
     }
@@ -10923,6 +10963,7 @@ int main (int argc, char **argv)
       case 13761:  esalt_size = sizeof (tc_t);            break;
       case 13762:  esalt_size = sizeof (tc_t);            break;
       case 13763:  esalt_size = sizeof (tc_t);            break;
+      case 13800:  esalt_size = sizeof (win8phone_t);     break;
     }
 
     data.esalt_size = esalt_size;
@@ -11256,7 +11297,7 @@ int main (int argc, char **argv)
                   break;
       case  7400: if (pw_max > 16) pw_max = 16;
                   break;
-      case  7500: if (pw_max >  8) pw_max =  8;
+      case  7700: if (pw_max >  8) pw_max =  8;
                   break;
       case  7900: if (pw_max > 48) pw_max = 48;
                   break;
@@ -14658,7 +14699,7 @@ int main (int argc, char **argv)
        * some algorithms need a fixed kernel-loops count
        */
 
-      if (hash_mode == 1500)
+      if (hash_mode == 1500 && attack_mode == ATTACK_MODE_BF)
       {
         const u32 kernel_loops_fixed = 1024;
 
@@ -14666,7 +14707,7 @@ int main (int argc, char **argv)
         device_param->kernel_loops_max = kernel_loops_fixed;
       }
 
-      if (hash_mode == 3000)
+      if (hash_mode == 3000 && attack_mode == ATTACK_MODE_BF)
       {
         const u32 kernel_loops_fixed = 1024;
 
@@ -18252,4 +18293,3 @@ int main (int argc, char **argv)
 
   return -1;
 }
-