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Fix Bitlocker in OpenCL mode on NV

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This commit is contained in:
Jens Steube 2020-01-02 11:59:37 +01:00
parent daaf5d365c
commit 349b3c4673
1 changed files with 110 additions and 46 deletions
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156
OpenCL/m22100-pure.cl
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@ -199,32 +199,29 @@ KERNEL_FQ void m22100_loop (KERN_ATTR_TMPS_ESALT (bitlocker_tmp_t, bitlocker_t))
const u64 lid = get_local_id (0);
const u64 lsz = get_local_size (0);
/**
* load 256 full w[] precomputed KE buffers into shared memory since its all static data
* in order for this to work we need to set a fixed loop count to 256
*/
// init
#ifdef REAL_SHM
u32x w0[4];
u32x w1[4];
u32x w2[4];
u32x w3[4];
LOCAL_VK u32 s_wb_ke_pc[256][48];
for (u32 i = lid; i < 256; i += lsz)
{
for (u32 j = 0; j < 48; j++) // first 16 set to register
{
s_wb_ke_pc[i][j] = esalt_bufs[digests_offset].wb_ke_pc[loop_pos + i][j];
}
}
SYNC_THREADS ();
#else
GLOBAL_AS u32 (*s_wb_ke_pc)[48] = &esalt_bufs[digests_offset].wb_ke_pc[loop_pos];
#endif
if ((gid * VECT_SIZE) >= gid_max) return;
w0[0] = packv (tmps, last_hash, gid, 0); // last_hash
w0[1] = packv (tmps, last_hash, gid, 1);
w0[2] = packv (tmps, last_hash, gid, 2);
w0[3] = packv (tmps, last_hash, gid, 3);
w1[0] = packv (tmps, last_hash, gid, 4);
w1[1] = packv (tmps, last_hash, gid, 5);
w1[2] = packv (tmps, last_hash, gid, 6);
w1[3] = packv (tmps, last_hash, gid, 7);
w2[0] = packv (tmps, init_hash, gid, 0); // init_hash
w2[1] = packv (tmps, init_hash, gid, 1);
w2[2] = packv (tmps, init_hash, gid, 2);
w2[3] = packv (tmps, init_hash, gid, 3);
w3[0] = packv (tmps, init_hash, gid, 4);
w3[1] = packv (tmps, init_hash, gid, 5);
w3[2] = packv (tmps, init_hash, gid, 6);
w3[3] = packv (tmps, init_hash, gid, 7);
// salt to register
@ -250,33 +247,46 @@ KERNEL_FQ void m22100_loop (KERN_ATTR_TMPS_ESALT (bitlocker_tmp_t, bitlocker_t))
t3[2] = 0;
t3[3] = 88 * 8;
// init
/**
* load FIXED_ITER_COUNT full w[] precomputed KE buffers into shared memory since its all static data
* in order for this to work we need to set a fixed loop count to FIXED_ITER_COUNT
* We also need to handle OpenCL and CUDA differently because of:
* ptxas error : Entry function 'm22100_loop' uses too much shared data (0xc004 bytes, 0xc000 max)
*/
u32x w0[4];
u32x w1[4];
u32x w2[4];
u32x w3[4];
#ifdef IS_CUDA
#define FIXED_ITER_COUNT 256
#else
#define FIXED_ITER_COUNT 128
#endif
w0[0] = packv (tmps, last_hash, gid, 0); // last_hash
w0[1] = packv (tmps, last_hash, gid, 1);
w0[2] = packv (tmps, last_hash, gid, 2);
w0[3] = packv (tmps, last_hash, gid, 3);
w1[0] = packv (tmps, last_hash, gid, 4);
w1[1] = packv (tmps, last_hash, gid, 5);
w1[2] = packv (tmps, last_hash, gid, 6);
w1[3] = packv (tmps, last_hash, gid, 7);
w2[0] = packv (tmps, init_hash, gid, 0); // init_hash
w2[1] = packv (tmps, init_hash, gid, 1);
w2[2] = packv (tmps, init_hash, gid, 2);
w2[3] = packv (tmps, init_hash, gid, 3);
w3[0] = packv (tmps, init_hash, gid, 4);
w3[1] = packv (tmps, init_hash, gid, 5);
w3[2] = packv (tmps, init_hash, gid, 6);
w3[3] = packv (tmps, init_hash, gid, 7);
#ifdef REAL_SHM
LOCAL_VK u32 s_wb_ke_pc[FIXED_ITER_COUNT][48];
#else
GLOBAL_AS u32 (*s_wb_ke_pc)[48] = NULL;
#endif
#ifdef REAL_SHM
for (u32 i = lid; i < FIXED_ITER_COUNT; i += lsz)
{
for (u32 j = 0; j < 48; j++) // first 16 set to register
{
s_wb_ke_pc[i][j] = esalt_bufs[digests_offset].wb_ke_pc[loop_pos + i][j];
}
}
SYNC_THREADS ();
#else
s_wb_ke_pc = &esalt_bufs[digests_offset].wb_ke_pc[loop_pos];
#endif
// main loop
for (u32 i = 0, j = loop_pos; i < loop_cnt; i++, j++)
for (u32 i = 0, j = loop_pos; i < FIXED_ITER_COUNT; i++, j++)
{
u32x digest[8];
@ -305,6 +315,60 @@ KERNEL_FQ void m22100_loop (KERN_ATTR_TMPS_ESALT (bitlocker_tmp_t, bitlocker_t))
w1[3] = digest[7];
}
#ifdef IS_CUDA
// nothing to do
#else
// remaining 128 iterations for non-cuda devices
#ifdef REAL_SHM
for (u32 i = lid; i < FIXED_ITER_COUNT; i += lsz)
{
for (u32 j = 0; j < 48; j++) // first 16 set to register
{
s_wb_ke_pc[i][j] = esalt_bufs[digests_offset].wb_ke_pc[loop_pos + 128 + i][j];
}
}
SYNC_THREADS ();
#else
s_wb_ke_pc = &esalt_bufs[digests_offset].wb_ke_pc[loop_pos + 128];
#endif
// main loop
for (u32 i = 0, j = loop_pos + 128; i < FIXED_ITER_COUNT; i++, j++)
{
u32x digest[8];
digest[0] = SHA256M_A;
digest[1] = SHA256M_B;
digest[2] = SHA256M_C;
digest[3] = SHA256M_D;
digest[4] = SHA256M_E;
digest[5] = SHA256M_F;
digest[6] = SHA256M_G;
digest[7] = SHA256M_H;
sha256_transform_vector (w0, w1, w2, w3, digest);
t1[0] = hc_swap32_S (j); // only moving part
sha256_transform_vector_pc (t0, t1, t2, t3, digest, s_wb_ke_pc[i]);
w0[0] = digest[0];
w0[1] = digest[1];
w0[2] = digest[2];
w0[3] = digest[3];
w1[0] = digest[4];
w1[1] = digest[5];
w1[2] = digest[6];
w1[3] = digest[7];
}
#endif
unpackv (tmps, last_hash, gid, 0, w0[0]);
unpackv (tmps, last_hash, gid, 1, w0[1]);
unpackv (tmps, last_hash, gid, 2, w0[2]);