arno/hashcat
1
0
Fork 0
mirror of https://github.com/hashcat/hashcat.git synced 2024-11-15 12:29:35 +00:00
Code Issues Releases Wiki Activity

Redesign some of the kernel_power features like too small wordlist detection etc, now based on autotuning results

Browse Source
This commit is contained in:
Jens Steube 2016-06-02 12:32:24 +02:00
parent 725e3677cb
commit 7ba1322d7f
2 changed files with 95 additions and 92 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/types.h
View File

@ -947,7 +947,6 @@ struct __hc_device_param
uint kernel_accel_min;
uint kernel_accel_max;
uint kernel_power;
uint kernel_power_user;
size_t size_pws;
size_t size_tmps;

186
src/hashcat.c
View File

@ -2420,7 +2420,7 @@ static float find_kernel_power_div (const u64 total_left, const uint kernel_powe
fflush (stdout);
}
if ((kernel_power_all * kernel_power_div) < 8) return 1;
//if ((kernel_power_all * kernel_power_div) < 8) return 1;
return kernel_power_div;
}
@ -2905,7 +2905,7 @@ static void run_copy (hc_device_param_t *device_param, const uint pws_cnt)
static double try_run (hc_device_param_t *device_param, const u32 kernel_accel, const u32 kernel_loops)
{
const u32 kernel_power = device_param->device_processors * device_param->kernel_threads * kernel_accel;
const u32 kernel_power_try = device_param->device_processors * device_param->kernel_threads * kernel_accel;
device_param->kernel_params_buf32[25] = 0;
device_param->kernel_params_buf32[26] = kernel_loops; // not a bug, both need to be set
@ -2913,11 +2913,11 @@ static double try_run (hc_device_param_t *device_param, const u32 kernel_accel,
if (data.attack_exec == ATTACK_EXEC_INSIDE_KERNEL)
{
run_kernel (KERN_RUN_1, device_param, kernel_power, true);
run_kernel (KERN_RUN_1, device_param, kernel_power_try, true);
}
else
{
run_kernel (KERN_RUN_2, device_param, kernel_power, true);
run_kernel (KERN_RUN_2, device_param, kernel_power_try, true);
}
const double exec_ms_prev = get_avg_exec_time (device_param, 1);
@ -4409,8 +4409,8 @@ static void *thread_outfile_remove (void *p)
static void pw_add (hc_device_param_t *device_param, const u8 *pw_buf, const int pw_len)
{
if (device_param->pws_cnt < device_param->kernel_power)
{
//if (device_param->pws_cnt < device_param->kernel_power)
//{
pw_t *pw = (pw_t *) device_param->pws_buf + device_param->pws_cnt;
u8 *ptr = (u8 *) pw->i;
@ -4422,16 +4422,26 @@ static void pw_add (hc_device_param_t *device_param, const u8 *pw_buf, const int
pw->pw_len = pw_len;
device_param->pws_cnt++;
}
else
{
fprintf (stderr, "BUG pw_add()!!\n");
return;
}
//}
//else
//{
// fprintf (stderr, "BUG pw_add()!!\n");
//
// return;
//}
}
static uint get_work (hc_device_param_t *device_param, const u64 max, const bool allow_div)
static u32 get_power (const u32 kernel_power)
{
if (data.kernel_power_div)
{
return (float) kernel_power * data.kernel_power_div;
}
return kernel_power;
}
static uint get_work (hc_device_param_t *device_param, const u64 max)
{
hc_thread_mutex_lock (mux_dispatcher);
@ -4442,31 +4452,15 @@ static uint get_work (hc_device_param_t *device_param, const u64 max, const bool
const u64 words_left = words_base - words_cur;
if (allow_div)
if (data.kernel_power_all > words_left)
{
if (data.kernel_power_all > words_left)
if (data.kernel_power_div == 0)
{
if (data.kernel_power_div == 0)
{
data.kernel_power_div = find_kernel_power_div (words_left, data.kernel_power_all);
}
}
if (data.kernel_power_div)
{
if (device_param->kernel_power == device_param->kernel_power_user)
{
const u32 kernel_power_new = (float) device_param->kernel_power * data.kernel_power_div;
if (kernel_power_new < device_param->kernel_power)
{
device_param->kernel_power = kernel_power_new;
}
}
data.kernel_power_div = find_kernel_power_div (words_left, data.kernel_power_all);
}
}
const uint kernel_power = device_param->kernel_power;
const u32 kernel_power = get_power (device_param->kernel_power);
uint work = MIN (words_left, kernel_power);
@ -4479,7 +4473,7 @@ static uint get_work (hc_device_param_t *device_param, const u64 max, const bool
return work;
}
static void *thread_calc_stdin (void *p)
static void *thread_autotune (void *p)
{
hc_device_param_t *device_param = (hc_device_param_t *) p;
@ -4487,12 +4481,19 @@ static void *thread_calc_stdin (void *p)
autotune (device_param);
return NULL;
}
static void *thread_calc_stdin (void *p)
{
hc_device_param_t *device_param = (hc_device_param_t *) p;
if (device_param->skipped) return NULL;
char *buf = (char *) mymalloc (HCBUFSIZ);
const uint attack_kern = data.attack_kern;
const uint kernel_power = device_param->kernel_power;
while ((data.devices_status != STATUS_EXHAUSTED) && (data.devices_status != STATUS_CRACKED) && (data.devices_status != STATUS_ABORTED) && (data.devices_status != STATUS_QUIT))
{
hc_thread_mutex_lock (mux_dispatcher);
@ -4506,7 +4507,7 @@ static void *thread_calc_stdin (void *p)
uint words_cur = 0;
while (words_cur < kernel_power)
while (words_cur < get_power (device_param->kernel_power))
{
char *line_buf = fgets (buf, HCBUFSIZ - 1, stdin);
@ -4633,8 +4634,6 @@ static void *thread_calc (void *p)
if (device_param->skipped) return NULL;
autotune (device_param);
const uint attack_mode = data.attack_mode;
const uint attack_kern = data.attack_kern;
@ -4642,7 +4641,7 @@ static void *thread_calc (void *p)
{
while ((data.devices_status != STATUS_EXHAUSTED) && (data.devices_status != STATUS_CRACKED) && (data.devices_status != STATUS_ABORTED) && (data.devices_status != STATUS_QUIT))
{
const uint work = get_work (device_param, -1, true);
const uint work = get_work (device_param, -1);
if (work == 0) break;
@ -4757,18 +4756,16 @@ static void *thread_calc (void *p)
u64 words_off = 0;
u64 words_fin = 0;
bool allow_div = true;
u64 max = -1;
while (max)
{
const uint work = get_work (device_param, max, allow_div);
allow_div = false;
const uint work = get_work (device_param, max);
if (work == 0) break;
max = 0;
words_off = device_param->words_off;
words_fin = words_off + work;
@ -4777,8 +4774,6 @@ static void *thread_calc (void *p)
for ( ; words_cur < words_off; words_cur++) get_next_word (wl_data, fd, &line_buf, &line_len);
max = 0;
for ( ; words_cur < words_fin; words_cur++)
{
get_next_word (wl_data, fd, &line_buf, &line_len);
@ -14437,8 +14432,6 @@ int main (int argc, char **argv)
if (data.quiet == 0) log_info_nn ("Initializing device kernels and memory...");
uint kernel_power_all = 0;
for (uint device_id = 0; device_id < data.devices_cnt; device_id++)
{
/**
@ -14499,6 +14492,8 @@ int main (int argc, char **argv)
if (hash_mode == 10500) kernel_threads = 64; // RC4
if (hash_mode == 13100) kernel_threads = 64; // RC4
device_param->kernel_threads = kernel_threads;
/**
* create input buffers on device : calculate size of fixed memory buffers
*/
@ -14868,15 +14863,6 @@ int main (int argc, char **argv)
device_param->size_tmps = size_tmps;
device_param->size_hooks = size_hooks;
// do not confuse kernel_accel_max with kernel_accel here
const u32 kernel_power = device_processors * kernel_threads * kernel_accel_max;
device_param->kernel_threads = kernel_threads;
device_param->kernel_power_user = kernel_power;
kernel_power_all += kernel_power;
/**
* default building options
*/
@ -15793,8 +15779,6 @@ int main (int argc, char **argv)
#endif // HAVE_HWMON
}
data.kernel_power_all = kernel_power_all;
if (data.quiet == 0) log_info_nn ("");
/**
@ -17019,6 +17003,8 @@ int main (int argc, char **argv)
data.ms_paused = 0;
data.kernel_power_div = 0;
data.words_cur = rd->words_cur;
for (uint device_id = 0; device_id < data.devices_cnt; device_id++)
@ -17036,8 +17022,6 @@ int main (int argc, char **argv)
memset (device_param->exec_ms, 0, EXEC_CACHE * sizeof (double));
device_param->kernel_power = device_param->kernel_power_user;
device_param->outerloop_pos = 0;
device_param->outerloop_left = 0;
device_param->innerloop_pos = 0;
@ -17053,8 +17037,6 @@ int main (int argc, char **argv)
device_param->words_done = 0;
}
data.kernel_power_div = 0;
// figure out some workload
if (attack_mode == ATTACK_MODE_STRAIGHT)
@ -17496,26 +17478,6 @@ int main (int argc, char **argv)
}
}
/*
* Inform user about possible slow speeds
*/
if ((wordlist_mode == WL_MODE_FILE) || (wordlist_mode == WL_MODE_MASK))
{
if (data.words_base < kernel_power_all)
{
if (quiet == 0)
{
log_info ("ATTENTION!");
log_info (" The wordlist or mask you are using is too small.");
log_info (" Therefore, hashcat is unable to utilize the full parallelization power of your device(s).");
log_info (" The cracking speed will drop.");
log_info (" Workaround: https://hashcat.net/wiki/doku.php?id=frequently_asked_questions#how_to_create_more_work_for_full_speed");
log_info ("");
}
}
}
/*
* Update loopback file
*/
@ -17576,17 +17538,61 @@ int main (int argc, char **argv)
if (data.quiet == 0) log_info ("");
}
time_t runtime_start;
/**
* create autotune threads
*/
time (&runtime_start);
hc_thread_t *c_threads = (hc_thread_t *) mycalloc (data.devices_cnt, sizeof (hc_thread_t));
data.runtime_start = runtime_start;
for (uint device_id = 0; device_id < data.devices_cnt; device_id++)
{
hc_device_param_t *device_param = &devices_param[device_id];
hc_thread_create (c_threads[device_id], thread_autotune, device_param);
}
hc_thread_wait (data.devices_cnt, c_threads);
/*
* Inform user about possible slow speeds
*/
uint kernel_power_all = 0;
for (uint device_id = 0; device_id < data.devices_cnt; device_id++)
{
hc_device_param_t *device_param = &devices_param[device_id];
kernel_power_all += device_param->kernel_power;
}
data.kernel_power_all = kernel_power_all;
if ((wordlist_mode == WL_MODE_FILE) || (wordlist_mode == WL_MODE_MASK))
{
if (data.words_base < kernel_power_all)
{
if (quiet == 0)
{
log_info ("ATTENTION!");
log_info (" The wordlist or mask you are using is too small.");
log_info (" Therefore, hashcat is unable to utilize the full parallelization power of your device(s).");
log_info (" The cracking speed will drop.");
log_info (" Workaround: https://hashcat.net/wiki/doku.php?id=frequently_asked_questions#how_to_create_more_work_for_full_speed");
log_info ("");
}
}
}
/**
* create cracker threads
*/
hc_thread_t *c_threads = (hc_thread_t *) mycalloc (data.devices_cnt, sizeof (hc_thread_t));
time_t runtime_start;
time (&runtime_start);
data.runtime_start = runtime_start;
for (uint device_id = 0; device_id < data.devices_cnt; device_id++)
{
@ -17602,8 +17608,6 @@ int main (int argc, char **argv)
}
}
// wait for crack threads to exit
hc_thread_wait (data.devices_cnt, c_threads);
local_free (c_threads);