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Code Issues Releases Wiki Activity

Prepare fixes to enable scrypt cracking on macOS 13

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This commit is contained in:
Jens Steube 2022-11-24 22:46:03 +01:00
parent 80ba8ca18e
commit 47b49d81de
1 changed files with 36 additions and 8 deletions
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44
src/backend.c
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@ -6990,7 +6990,11 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
// so we will set kernel_preferred_wgs_multiple intentionally to 0 because otherwise it it set to 8 by default.
// we then assign the value kernel_preferred_wgs_multiple a small kernel like bzero after test if this was set to 0.
device_param->kernel_preferred_wgs_multiple = 0;
// Update macOS 13.x: this strategy doesn't work for algorithms that require high memory like scrypt.
// Let's use a fixed thread count instead
//device_param->kernel_preferred_wgs_multiple = 0;
device_param->kernel_preferred_wgs_multiple = 32;
}
if ((device_param->opencl_platform_vendor_id == VENDOR_ID_AMD) && (device_param->opencl_device_vendor_id == VENDOR_ID_AMD))
@ -7317,8 +7321,16 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
#if defined (__APPLE__)
char *start = index (device_param->opencl_driver_version, '(');
char *stop = index (device_param->opencl_driver_version, ')');
char *start130 = index (device_param->opencl_driver_version, '(');
char *stop130 = index (device_param->opencl_driver_version, ')');
char *start131 = index (opencl_platform_version, '(');
char *stop131 = index (opencl_platform_version, ')');
// either none or one of these have a date string
char *start = (start130 == NULL) ? start131 : start130;
char *stop = (stop130 == NULL) ? stop131 : stop130;
if ((start != NULL) && (stop != NULL))
{
@ -7339,9 +7351,13 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
{
const time_t t = mktime (&tm);
if (t >= 1666902815)
if (t >= 1662940800)
{
// ok: 1.2 (Oct 27 2022 21:33:35)
// ok: 1.2 (Oct 26 2022 11:01:47) // 13.1+
// ok: 1.2 (Oct 27 2022 21:33:35) // 13.0 AMD
// ok: 1.2 (Sep 30 2022 01:38:14) // 13.0 M1
// Since versions vary a lot on destination hardware, its probably better
// to use xcode 14 release date as reference: September 12, 2022 GMT
}
else
{
@ -7828,6 +7844,18 @@ int backend_ctx_devices_init (hashcat_ctx_t *hashcat_ctx, const int comptime)
{
if (((c + 1 + 1) * MAX_ALLOC_CHECKS_SIZE) >= device_param->device_global_mem) break;
// work around, for some reason apple opencl can't have buffers larger 2^31
// typically runs into trap 6
// maybe 32/64 bit problem affecting size_t?
// this seems to affect global memory as well no just single allocations
if ((device_param->opencl_platform_vendor_id == VENDOR_ID_APPLE) && (device_param->is_metal == false))
{
const size_t undocumented_single_allocation_apple = 0x7fffffff;
if (((c + 1 + 1) * MAX_ALLOC_CHECKS_SIZE) >= undocumented_single_allocation_apple) break;
}
cl_int CL_err;
OCL_PTR *ocl = (OCL_PTR *) backend_ctx->ocl;
@ -9378,10 +9406,10 @@ int backend_session_begin (hashcat_ctx_t *hashcat_ctx)
{
// set some limits with Metal
device_param->kernel_threads_max = 64;
device_param->kernel_threads_max = MIN (device_param->kernel_threads_max, 64);
device_param->kernel_threads_min = MIN (device_param->kernel_threads_min, device_param->kernel_threads_max);
device_param->kernel_loops_max = 1024; // autotune go over ...
device_param->kernel_loops_max = MIN (device_param->kernel_loops_max, 1024); // autotune go over ...
device_param->kernel_loops_min = MIN (device_param->kernel_loops_min, device_param->kernel_loops_max);
}
#endif
@ -14891,7 +14919,7 @@ int backend_session_begin (hashcat_ctx_t *hashcat_ctx)
// typically runs into trap 6
// maybe 32/64 bit problem affecting size_t?
if (device_param->opencl_platform_vendor_id == VENDOR_ID_APPLE)
if ((device_param->opencl_platform_vendor_id == VENDOR_ID_APPLE) && (device_param->is_metal == false))
{
const size_t undocumented_single_allocation_apple = 0x7fffffff;