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Avoid memory copy in rebuild_pws_compressed_append() and assign instead

Browse Source
pull/2926/head
Jukka Ojanen 3 years ago
parent 089a4847db
commit f3cd32bffd
2 changed files with 8 additions and 7 deletions
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2
include/backend.h
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@ -174,8 +174,6 @@ int gidd_to_pw_t (hashcat_ctx_t *hashcat_ctx, hc_device_param_t *device_param, c
int choose_kernel (hashcat_ctx_t *hashcat_ctx, hc_device_param_t *device_param, const u32 highest_pw_len, const u64 pws_pos, const u64 pws_cnt, const u32 fast_iteration, const u32 salt_pos);
void rebuild_pws_compressed_append (hc_device_param_t *device_param, const u64 pws_cnt, const u8 chr);
int run_cuda_kernel_atinit (hashcat_ctx_t *hashcat_ctx, hc_device_param_t *device_param, CUdeviceptr buf, const u64 num);
int run_cuda_kernel_utf8toutf16le (hashcat_ctx_t *hashcat_ctx, hc_device_param_t *device_param, CUdeviceptr buf, const u64 num);
int run_cuda_kernel_memset (hashcat_ctx_t *hashcat_ctx, hc_device_param_t *device_param, CUdeviceptr buf, const u64 offset, const u8 value, const u64 size);

13
src/backend.c
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@ -41,6 +41,9 @@ static double TARGET_MSEC_PROFILE[4] = { 2, 12, 96, 480 };
HC_ALIGN(16)
static const u32 bzeros[4] = { 0, 0, 0, 0 };
/* forward declarations */
static void rebuild_pws_compressed_append (hc_device_param_t *device_param, const u64 pws_cnt, const u8 chr);
static bool is_same_device (const hc_device_param_t *src, const hc_device_param_t *dst)
{
// First check by PCI address
@ -4827,7 +4830,7 @@ int choose_kernel (hashcat_ctx_t *hashcat_ctx, hc_device_param_t *device_param,
return 0;
}
void rebuild_pws_compressed_append (hc_device_param_t *device_param, const u64 pws_cnt, const u8 chr)
static void rebuild_pws_compressed_append (hc_device_param_t *device_param, const u64 pws_cnt, const u8 chr)
{
// this function is used if we have to modify the compressed pws buffer in order to
// append some data to each password candidate
@ -4871,11 +4874,11 @@ void rebuild_pws_compressed_append (hc_device_param_t *device_param, const u64 p
pw_idx_dst_next->off = pw_idx_dst->off + pw_idx_dst->cnt;
}
memcpy (device_param->pws_comp, tmp_pws_comp, device_param->size_pws_comp);
memcpy (device_param->pws_idx, tmp_pws_idx, device_param->size_pws_idx);
hcfree (device_param->pws_comp);
hcfree (device_param->pws_idx);
hcfree (tmp_pws_comp);
hcfree (tmp_pws_idx);
device_param->pws_comp = tmp_pws_comp;
device_param->pws_idx = tmp_pws_idx;
}
int run_cuda_kernel_atinit (hashcat_ctx_t *hashcat_ctx, hc_device_param_t *device_param, CUdeviceptr buf, const u64 num)

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