/** * Author......: See docs/credits.txt * License.....: MIT */ #ifdef KERNEL_STATIC #include "inc_vendor.h" #include "inc_types.h" #include "inc_common.cl" #include "inc_hash_sha256.cl" #endif #define COMPARE_S "inc_comp_single.cl" #define COMPARE_M "inc_comp_multi.cl" typedef struct sha256crypt_tmp { // pure version u32 alt_result[8]; u32 p_bytes[64]; u32 s_bytes[64]; } sha256crypt_tmp_t; DECLSPEC static void sha256_transform_transport (const u32 *w, u32 *digest) { u32 w0[4]; u32 w1[4]; u32 w2[4]; u32 w3[4]; w0[0] = hc_swap32_S (w[ 0]); w0[1] = hc_swap32_S (w[ 1]); w0[2] = hc_swap32_S (w[ 2]); w0[3] = hc_swap32_S (w[ 3]); w1[0] = hc_swap32_S (w[ 4]); w1[1] = hc_swap32_S (w[ 5]); w1[2] = hc_swap32_S (w[ 6]); w1[3] = hc_swap32_S (w[ 7]); w2[0] = hc_swap32_S (w[ 8]); w2[1] = hc_swap32_S (w[ 9]); w2[2] = hc_swap32_S (w[10]); w2[3] = hc_swap32_S (w[11]); w3[0] = hc_swap32_S (w[12]); w3[1] = hc_swap32_S (w[13]); w3[2] = hc_swap32_S (w[14]); w3[3] = hc_swap32_S (w[15]); sha256_transform (w0, w1, w2, w3, digest); } DECLSPEC static void init_ctx (u32 *digest) { 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; } DECLSPEC static void bzero16 (u32 *block) { block[ 0] = 0; block[ 1] = 0; block[ 2] = 0; block[ 3] = 0; block[ 4] = 0; block[ 5] = 0; block[ 6] = 0; block[ 7] = 0; block[ 8] = 0; block[ 9] = 0; block[10] = 0; block[11] = 0; block[12] = 0; block[13] = 0; block[14] = 0; block[15] = 0; } DECLSPEC static void bswap8 (u32 *block) { block[ 0] = hc_swap32_S (block[ 0]); block[ 1] = hc_swap32_S (block[ 1]); block[ 2] = hc_swap32_S (block[ 2]); block[ 3] = hc_swap32_S (block[ 3]); block[ 4] = hc_swap32_S (block[ 4]); block[ 5] = hc_swap32_S (block[ 5]); block[ 6] = hc_swap32_S (block[ 6]); block[ 7] = hc_swap32_S (block[ 7]); } DECLSPEC static u32 memcat16 (u32 *block, const u32 offset, const u32 *append, const u32 append_len) { u32 tmp0; u32 tmp1; u32 tmp2; u32 tmp3; u32 tmp4; const int offset_mod_4 = offset & 3; const int offset_minus_4 = 4 - offset_mod_4; #if defined IS_AMD || defined IS_GENERIC u32 in0 = append[0]; u32 in1 = append[1]; u32 in2 = append[2]; u32 in3 = append[3]; tmp0 = hc_bytealign ( 0, in0, offset); tmp1 = hc_bytealign (in0, in1, offset); tmp2 = hc_bytealign (in1, in2, offset); tmp3 = hc_bytealign (in2, in3, offset); tmp4 = hc_bytealign (in3, 0, offset); #endif #ifdef IS_NV const int selector = (0x76543210 >> (offset_minus_4 * 4)) & 0xffff; u32 in0 = append[0]; u32 in1 = append[1]; u32 in2 = append[2]; u32 in3 = append[3]; tmp0 = hc_byte_perm ( 0, in0, selector); tmp1 = hc_byte_perm (in0, in1, selector); tmp2 = hc_byte_perm (in1, in2, selector); tmp3 = hc_byte_perm (in2, in3, selector); tmp4 = hc_byte_perm (in3, 0, selector); #endif switch (offset / 4) { case 0: block[ 0] |= tmp0; block[ 1] = tmp1; block[ 2] = tmp2; block[ 3] = tmp3; block[ 4] = tmp4; break; case 1: block[ 1] |= tmp0; block[ 2] = tmp1; block[ 3] = tmp2; block[ 4] = tmp3; block[ 5] = tmp4; break; case 2: block[ 2] |= tmp0; block[ 3] = tmp1; block[ 4] = tmp2; block[ 5] = tmp3; block[ 6] = tmp4; break; case 3: block[ 3] |= tmp0; block[ 4] = tmp1; block[ 5] = tmp2; block[ 6] = tmp3; block[ 7] = tmp4; break; case 4: block[ 4] |= tmp0; block[ 5] = tmp1; block[ 6] = tmp2; block[ 7] = tmp3; block[ 8] = tmp4; break; case 5: block[ 5] |= tmp0; block[ 6] = tmp1; block[ 7] = tmp2; block[ 8] = tmp3; block[ 9] = tmp4; break; case 6: block[ 6] |= tmp0; block[ 7] = tmp1; block[ 8] = tmp2; block[ 9] = tmp3; block[10] = tmp4; break; case 7: block[ 7] |= tmp0; block[ 8] = tmp1; block[ 9] = tmp2; block[10] = tmp3; block[11] = tmp4; break; case 8: block[ 8] |= tmp0; block[ 9] = tmp1; block[10] = tmp2; block[11] = tmp3; block[12] = tmp4; break; case 9: block[ 9] |= tmp0; block[10] = tmp1; block[11] = tmp2; block[12] = tmp3; block[13] = tmp4; break; case 10: block[10] |= tmp0; block[11] = tmp1; block[12] = tmp2; block[13] = tmp3; block[14] = tmp4; break; case 11: block[11] |= tmp0; block[12] = tmp1; block[13] = tmp2; block[14] = tmp3; block[15] = tmp4; break; case 12: block[12] |= tmp0; block[13] = tmp1; block[14] = tmp2; block[15] = tmp3; break; case 13: block[13] |= tmp0; block[14] = tmp1; block[15] = tmp2; break; case 14: block[14] |= tmp0; block[15] = tmp1; break; case 15: block[15] |= tmp0; break; } u32 new_len = offset + append_len; return new_len; } DECLSPEC static u32 memcat16c (u32 *block, const u32 offset, const u32 *append, const u32 append_len, u32 *digest) { u32 tmp0; u32 tmp1; u32 tmp2; u32 tmp3; u32 tmp4; const int offset_mod_4 = offset & 3; const int offset_minus_4 = 4 - offset_mod_4; #if defined IS_AMD || defined IS_GENERIC u32 in0 = append[0]; u32 in1 = append[1]; u32 in2 = append[2]; u32 in3 = append[3]; tmp0 = hc_bytealign ( 0, in0, offset); tmp1 = hc_bytealign (in0, in1, offset); tmp2 = hc_bytealign (in1, in2, offset); tmp3 = hc_bytealign (in2, in3, offset); tmp4 = hc_bytealign (in3, 0, offset); #endif #ifdef IS_NV const int selector = (0x76543210 >> (offset_minus_4 * 4)) & 0xffff; u32 in0 = append[0]; u32 in1 = append[1]; u32 in2 = append[2]; u32 in3 = append[3]; tmp0 = hc_byte_perm ( 0, in0, selector); tmp1 = hc_byte_perm (in0, in1, selector); tmp2 = hc_byte_perm (in1, in2, selector); tmp3 = hc_byte_perm (in2, in3, selector); tmp4 = hc_byte_perm (in3, 0, selector); #endif u32 carry[4] = { 0, 0, 0, 0 }; switch (offset / 4) { case 0: block[ 0] |= tmp0; block[ 1] = tmp1; block[ 2] = tmp2; block[ 3] = tmp3; block[ 4] = tmp4; break; case 1: block[ 1] |= tmp0; block[ 2] = tmp1; block[ 3] = tmp2; block[ 4] = tmp3; block[ 5] = tmp4; break; case 2: block[ 2] |= tmp0; block[ 3] = tmp1; block[ 4] = tmp2; block[ 5] = tmp3; block[ 6] = tmp4; break; case 3: block[ 3] |= tmp0; block[ 4] = tmp1; block[ 5] = tmp2; block[ 6] = tmp3; block[ 7] = tmp4; break; case 4: block[ 4] |= tmp0; block[ 5] = tmp1; block[ 6] = tmp2; block[ 7] = tmp3; block[ 8] = tmp4; break; case 5: block[ 5] |= tmp0; block[ 6] = tmp1; block[ 7] = tmp2; block[ 8] = tmp3; block[ 9] = tmp4; break; case 6: block[ 6] |= tmp0; block[ 7] = tmp1; block[ 8] = tmp2; block[ 9] = tmp3; block[10] = tmp4; break; case 7: block[ 7] |= tmp0; block[ 8] = tmp1; block[ 9] = tmp2; block[10] = tmp3; block[11] = tmp4; break; case 8: block[ 8] |= tmp0; block[ 9] = tmp1; block[10] = tmp2; block[11] = tmp3; block[12] = tmp4; break; case 9: block[ 9] |= tmp0; block[10] = tmp1; block[11] = tmp2; block[12] = tmp3; block[13] = tmp4; break; case 10: block[10] |= tmp0; block[11] = tmp1; block[12] = tmp2; block[13] = tmp3; block[14] = tmp4; break; case 11: block[11] |= tmp0; block[12] = tmp1; block[13] = tmp2; block[14] = tmp3; block[15] = tmp4; break; case 12: block[12] |= tmp0; block[13] = tmp1; block[14] = tmp2; block[15] = tmp3; carry[ 0] = tmp4; break; case 13: block[13] |= tmp0; block[14] = tmp1; block[15] = tmp2; carry[ 0] = tmp3; carry[ 1] = tmp4; break; case 14: block[14] |= tmp0; block[15] = tmp1; carry[ 0] = tmp2; carry[ 1] = tmp3; carry[ 2] = tmp4; break; case 15: block[15] |= tmp0; carry[ 0] = tmp1; carry[ 1] = tmp2; carry[ 2] = tmp3; carry[ 3] = tmp4; break; } u32 new_len = offset + append_len; if (new_len >= 64) { new_len -= 64; sha256_transform_transport (block, digest); bzero16 (block); block[0] = carry[0]; block[1] = carry[1]; block[2] = carry[2]; block[3] = carry[3]; } return new_len; } DECLSPEC static u32 memcat20 (u32 *block, const u32 offset, const u32 *append, const u32 append_len) { u32 tmp0; u32 tmp1; u32 tmp2; u32 tmp3; u32 tmp4; const int offset_mod_4 = offset & 3; const int offset_minus_4 = 4 - offset_mod_4; #if defined IS_AMD || defined IS_GENERIC u32 in0 = append[0]; u32 in1 = append[1]; u32 in2 = append[2]; u32 in3 = append[3]; tmp0 = hc_bytealign ( 0, in0, offset); tmp1 = hc_bytealign (in0, in1, offset); tmp2 = hc_bytealign (in1, in2, offset); tmp3 = hc_bytealign (in2, in3, offset); tmp4 = hc_bytealign (in3, 0, offset); #endif #ifdef IS_NV const int selector = (0x76543210 >> (offset_minus_4 * 4)) & 0xffff; u32 in0 = append[0]; u32 in1 = append[1]; u32 in2 = append[2]; u32 in3 = append[3]; tmp0 = hc_byte_perm ( 0, in0, selector); tmp1 = hc_byte_perm (in0, in1, selector); tmp2 = hc_byte_perm (in1, in2, selector); tmp3 = hc_byte_perm (in2, in3, selector); tmp4 = hc_byte_perm (in3, 0, selector); #endif switch (offset / 4) { case 0: block[ 0] |= tmp0; block[ 1] = tmp1; block[ 2] = tmp2; block[ 3] = tmp3; block[ 4] = tmp4; break; case 1: block[ 1] |= tmp0; block[ 2] = tmp1; block[ 3] = tmp2; block[ 4] = tmp3; block[ 5] = tmp4; break; case 2: block[ 2] |= tmp0; block[ 3] = tmp1; block[ 4] = tmp2; block[ 5] = tmp3; block[ 6] = tmp4; break; case 3: block[ 3] |= tmp0; block[ 4] = tmp1; block[ 5] = tmp2; block[ 6] = tmp3; block[ 7] = tmp4; break; case 4: block[ 4] |= tmp0; block[ 5] = tmp1; block[ 6] = tmp2; block[ 7] = tmp3; block[ 8] = tmp4; break; case 5: block[ 5] |= tmp0; block[ 6] = tmp1; block[ 7] = tmp2; block[ 8] = tmp3; block[ 9] = tmp4; break; case 6: block[ 6] |= tmp0; block[ 7] = tmp1; block[ 8] = tmp2; block[ 9] = tmp3; block[10] = tmp4; break; case 7: block[ 7] |= tmp0; block[ 8] = tmp1; block[ 9] = tmp2; block[10] = tmp3; block[11] = tmp4; break; case 8: block[ 8] |= tmp0; block[ 9] = tmp1; block[10] = tmp2; block[11] = tmp3; block[12] = tmp4; break; case 9: block[ 9] |= tmp0; block[10] = tmp1; block[11] = tmp2; block[12] = tmp3; block[13] = tmp4; break; case 10: block[10] |= tmp0; block[11] = tmp1; block[12] = tmp2; block[13] = tmp3; block[14] = tmp4; break; case 11: block[11] |= tmp0; block[12] = tmp1; block[13] = tmp2; block[14] = tmp3; block[15] = tmp4; break; case 12: block[12] |= tmp0; block[13] = tmp1; block[14] = tmp2; block[15] = tmp3; block[16] = tmp4; break; case 13: block[13] |= tmp0; block[14] = tmp1; block[15] = tmp2; block[16] = tmp3; block[17] = tmp4; break; case 14: block[14] |= tmp0; block[15] = tmp1; block[16] = tmp2; block[17] = tmp3; block[18] = tmp4; break; case 15: block[15] |= tmp0; block[16] = tmp1; block[17] = tmp2; block[18] = tmp3; block[19] = tmp4; break; } return offset + append_len; } DECLSPEC static u32 memcat20_x80 (u32 *block, const u32 offset, const u32 *append, const u32 append_len) { u32 tmp0; u32 tmp1; u32 tmp2; u32 tmp3; u32 tmp4; const int offset_mod_4 = offset & 3; const int offset_minus_4 = 4 - offset_mod_4; #if defined IS_AMD || defined IS_GENERIC u32 in0 = append[0]; u32 in1 = append[1]; u32 in2 = append[2]; u32 in3 = append[3]; u32 in4 = 0x80; tmp0 = hc_bytealign ( 0, in0, offset); tmp1 = hc_bytealign (in0, in1, offset); tmp2 = hc_bytealign (in1, in2, offset); tmp3 = hc_bytealign (in2, in3, offset); tmp4 = hc_bytealign (in3, in4, offset); #endif #ifdef IS_NV const int selector = (0x76543210 >> (offset_minus_4 * 4)) & 0xffff; u32 in0 = append[0]; u32 in1 = append[1]; u32 in2 = append[2]; u32 in3 = append[3]; u32 in4 = 0x80; tmp0 = hc_byte_perm ( 0, in0, selector); tmp1 = hc_byte_perm (in0, in1, selector); tmp2 = hc_byte_perm (in1, in2, selector); tmp3 = hc_byte_perm (in2, in3, selector); tmp4 = hc_byte_perm (in3, in4, selector); #endif switch (offset / 4) { case 0: block[ 0] |= tmp0; block[ 1] = tmp1; block[ 2] = tmp2; block[ 3] = tmp3; block[ 4] = tmp4; break; case 1: block[ 1] |= tmp0; block[ 2] = tmp1; block[ 3] = tmp2; block[ 4] = tmp3; block[ 5] = tmp4; break; case 2: block[ 2] |= tmp0; block[ 3] = tmp1; block[ 4] = tmp2; block[ 5] = tmp3; block[ 6] = tmp4; break; case 3: block[ 3] |= tmp0; block[ 4] = tmp1; block[ 5] = tmp2; block[ 6] = tmp3; block[ 7] = tmp4; break; case 4: block[ 4] |= tmp0; block[ 5] = tmp1; block[ 6] = tmp2; block[ 7] = tmp3; block[ 8] = tmp4; break; case 5: block[ 5] |= tmp0; block[ 6] = tmp1; block[ 7] = tmp2; block[ 8] = tmp3; block[ 9] = tmp4; break; case 6: block[ 6] |= tmp0; block[ 7] = tmp1; block[ 8] = tmp2; block[ 9] = tmp3; block[10] = tmp4; break; case 7: block[ 7] |= tmp0; block[ 8] = tmp1; block[ 9] = tmp2; block[10] = tmp3; block[11] = tmp4; break; case 8: block[ 8] |= tmp0; block[ 9] = tmp1; block[10] = tmp2; block[11] = tmp3; block[12] = tmp4; break; case 9: block[ 9] |= tmp0; block[10] = tmp1; block[11] = tmp2; block[12] = tmp3; block[13] = tmp4; break; case 10: block[10] |= tmp0; block[11] = tmp1; block[12] = tmp2; block[13] = tmp3; block[14] = tmp4; break; case 11: block[11] |= tmp0; block[12] = tmp1; block[13] = tmp2; block[14] = tmp3; block[15] = tmp4; break; case 12: block[12] |= tmp0; block[13] = tmp1; block[14] = tmp2; block[15] = tmp3; block[16] = tmp4; break; case 13: block[13] |= tmp0; block[14] = tmp1; block[15] = tmp2; block[16] = tmp3; block[17] = tmp4; break; case 14: block[14] |= tmp0; block[15] = tmp1; block[16] = tmp2; block[17] = tmp3; block[18] = tmp4; break; case 15: block[15] |= tmp0; block[16] = tmp1; block[17] = tmp2; block[18] = tmp3; block[19] = tmp4; break; } return offset + append_len; } KERNEL_FQ void m07400_init (KERN_ATTR_TMPS (sha256crypt_tmp_t)) { /** * base */ const u64 gid = get_global_id (0); if (gid >= gid_max) return; u32 w0[4]; w0[0] = pws[gid].i[0]; w0[1] = pws[gid].i[1]; w0[2] = pws[gid].i[2]; w0[3] = pws[gid].i[3]; const u32 pw_len = pws[gid].pw_len & 63; /** * salt */ u32 salt_buf[4]; salt_buf[0] = salt_bufs[salt_pos].salt_buf[0]; salt_buf[1] = salt_bufs[salt_pos].salt_buf[1]; salt_buf[2] = salt_bufs[salt_pos].salt_buf[2]; salt_buf[3] = salt_bufs[salt_pos].salt_buf[3]; u32 salt_len = salt_bufs[salt_pos].salt_len; /** * buffers */ u32 block_len; // never reaches > 64 u32 transform_len; // required for w[15] = len * 8 u32 block[16]; u32 alt_result[8]; u32 p_bytes[8]; u32 s_bytes[8]; /* Prepare for the real work. */ block_len = 0; bzero16 (block); /* Add key. */ block_len = memcat16 (block, block_len, w0, pw_len); /* Add salt. */ block_len = memcat16 (block, block_len, salt_buf, salt_len); /* Add key again. */ block_len = memcat16 (block, block_len, w0, pw_len); append_0x80_1x16 (block, block_len); block[15] = hc_swap32_S (block_len * 8); init_ctx (alt_result); sha256_transform_transport (block, alt_result); bswap8 (alt_result); block_len = 0; bzero16 (block); u32 alt_result_tmp[8]; alt_result_tmp[0] = alt_result[0]; alt_result_tmp[1] = alt_result[1]; alt_result_tmp[2] = alt_result[2]; alt_result_tmp[3] = alt_result[3]; alt_result_tmp[4] = 0; alt_result_tmp[5] = 0; alt_result_tmp[6] = 0; alt_result_tmp[7] = 0; truncate_block_4x4_le_S (alt_result_tmp, pw_len); /* Add the key string. */ block_len = memcat16 (block, block_len, w0, pw_len); /* The last part is the salt string. This must be at most 8 characters and it ends at the first `$' character (for compatibility with existing implementations). */ block_len = memcat16 (block, block_len, salt_buf, salt_len); /* Now get result of this (32 bytes) and add it to the other context. */ block_len = memcat16 (block, block_len, alt_result_tmp, pw_len); transform_len = block_len; /* Take the binary representation of the length of the key and for every 1 add the alternate sum, for every 0 the key. */ alt_result_tmp[0] = alt_result[0]; alt_result_tmp[1] = alt_result[1]; alt_result_tmp[2] = alt_result[2]; alt_result_tmp[3] = alt_result[3]; alt_result_tmp[4] = alt_result[4]; alt_result_tmp[5] = alt_result[5]; alt_result_tmp[6] = alt_result[6]; alt_result_tmp[7] = alt_result[7]; init_ctx (alt_result); for (u32 j = pw_len; j; j >>= 1) { if (j & 1) { block_len = memcat16c (block, block_len, &alt_result_tmp[0], 16, alt_result); block_len = memcat16c (block, block_len, &alt_result_tmp[4], 16, alt_result); transform_len += 32; } else { block_len = memcat16c (block, block_len, w0, pw_len, alt_result); transform_len += pw_len; } } append_0x80_1x16 (block, block_len); if (block_len >= 56) { sha256_transform_transport (block, alt_result); bzero16 (block); } block[15] = hc_swap32_S (transform_len * 8); sha256_transform_transport (block, alt_result); bswap8 (alt_result); tmps[gid].alt_result[0] = alt_result[0]; tmps[gid].alt_result[1] = alt_result[1]; tmps[gid].alt_result[2] = alt_result[2]; tmps[gid].alt_result[3] = alt_result[3]; tmps[gid].alt_result[4] = alt_result[4]; tmps[gid].alt_result[5] = alt_result[5]; tmps[gid].alt_result[6] = alt_result[6]; tmps[gid].alt_result[7] = alt_result[7]; /* Start computation of P byte sequence. */ block_len = 0; transform_len = 0; bzero16 (block); /* For every character in the password add the entire password. */ init_ctx (p_bytes); for (u32 j = 0; j < pw_len; j++) { block_len = memcat16c (block, block_len, w0, pw_len, p_bytes); transform_len += pw_len; } /* Finish the digest. */ append_0x80_1x16 (block, block_len); if (block_len >= 56) { sha256_transform_transport (block, p_bytes); bzero16 (block); } block[15] = hc_swap32_S (transform_len * 8); sha256_transform_transport (block, p_bytes); bswap8 (p_bytes); truncate_block_4x4_le_S (p_bytes, pw_len); tmps[gid].p_bytes[0] = p_bytes[0]; tmps[gid].p_bytes[1] = p_bytes[1]; tmps[gid].p_bytes[2] = p_bytes[2]; tmps[gid].p_bytes[3] = p_bytes[3]; /* Start computation of S byte sequence. */ block_len = 0; transform_len = 0; bzero16 (block); /* For every character in the password add the entire password. */ init_ctx (s_bytes); for (u32 j = 0; j < 16 + (alt_result[0] & 0xff); j++) { block_len = memcat16c (block, block_len, salt_buf, salt_len, s_bytes); transform_len += salt_len; } /* Finish the digest. */ append_0x80_1x16 (block, block_len); if (block_len >= 56) { sha256_transform_transport (block, s_bytes); bzero16 (block); } block[15] = hc_swap32_S (transform_len * 8); sha256_transform_transport (block, s_bytes); bswap8 (s_bytes); truncate_block_4x4_le_S (s_bytes, salt_len); tmps[gid].s_bytes[0] = s_bytes[0]; tmps[gid].s_bytes[1] = s_bytes[1]; tmps[gid].s_bytes[2] = s_bytes[2]; tmps[gid].s_bytes[3] = s_bytes[3]; } KERNEL_FQ void m07400_loop (KERN_ATTR_TMPS (sha256crypt_tmp_t)) { /** * base */ const u64 gid = get_global_id (0); if (gid >= gid_max) return; const u32 pw_len = pws[gid].pw_len & 63; /** * base */ u32 p_bytes[4]; p_bytes[0] = tmps[gid].p_bytes[0]; p_bytes[1] = tmps[gid].p_bytes[1]; p_bytes[2] = tmps[gid].p_bytes[2]; p_bytes[3] = tmps[gid].p_bytes[3]; u32 p_bytes_x80[4]; p_bytes_x80[0] = tmps[gid].p_bytes[0]; p_bytes_x80[1] = tmps[gid].p_bytes[1]; p_bytes_x80[2] = tmps[gid].p_bytes[2]; p_bytes_x80[3] = tmps[gid].p_bytes[3]; append_0x80_1x4 (p_bytes_x80, pw_len); u32 s_bytes[4]; s_bytes[0] = tmps[gid].s_bytes[0]; s_bytes[1] = tmps[gid].s_bytes[1]; s_bytes[2] = tmps[gid].s_bytes[2]; s_bytes[3] = tmps[gid].s_bytes[3]; u32 alt_result[8]; alt_result[0] = tmps[gid].alt_result[0]; alt_result[1] = tmps[gid].alt_result[1]; alt_result[2] = tmps[gid].alt_result[2]; alt_result[3] = tmps[gid].alt_result[3]; alt_result[4] = tmps[gid].alt_result[4]; alt_result[5] = tmps[gid].alt_result[5]; alt_result[6] = tmps[gid].alt_result[6]; alt_result[7] = tmps[gid].alt_result[7]; u32 salt_len = salt_bufs[salt_pos].salt_len; /* Repeatedly run the collected hash value through SHA256 to burn CPU cycles. */ for (u32 i = 0, j = loop_pos; i < loop_cnt; i++, j++) { u32 tmp[8]; init_ctx (tmp); u32 block[32]; bzero16 (&block[ 0]); bzero16 (&block[16]); u32 block_len = 0; const u32 j1 = (j & 1) ? 1 : 0; const u32 j3 = (j % 3) ? 1 : 0; const u32 j7 = (j % 7) ? 1 : 0; if (j1) { block[0] = p_bytes[0]; block[1] = p_bytes[1]; block[2] = p_bytes[2]; block[3] = p_bytes[3]; block_len = pw_len; } else { block[0] = alt_result[0]; block[1] = alt_result[1]; block[2] = alt_result[2]; block[3] = alt_result[3]; block[4] = alt_result[4]; block[5] = alt_result[5]; block[6] = alt_result[6]; block[7] = alt_result[7]; block_len = 32; } if (j3) { block_len = memcat20 (block, block_len, s_bytes, salt_len); } if (j7) { block_len = memcat20 (block, block_len, p_bytes, pw_len); } if (j1) { block_len = memcat20 (block, block_len, &alt_result[0], 16); block_len = memcat20_x80 (block, block_len, &alt_result[4], 16); } else { block_len = memcat20 (block, block_len, p_bytes_x80, pw_len); } if (block_len >= 56) { sha256_transform_transport (block, tmp); block[ 0] = block[16]; block[ 1] = block[17]; block[ 2] = block[18]; block[ 3] = block[19]; block[ 4] = 0; block[ 5] = 0; block[ 6] = 0; block[ 7] = 0; block[ 8] = 0; block[ 9] = 0; block[10] = 0; block[11] = 0; block[12] = 0; block[13] = 0; block[14] = 0; block[15] = 0; } block[15] = hc_swap32_S (block_len * 8); sha256_transform_transport (block, tmp); bswap8 (tmp); alt_result[0] = tmp[0]; alt_result[1] = tmp[1]; alt_result[2] = tmp[2]; alt_result[3] = tmp[3]; alt_result[4] = tmp[4]; alt_result[5] = tmp[5]; alt_result[6] = tmp[6]; alt_result[7] = tmp[7]; } tmps[gid].alt_result[0] = alt_result[0]; tmps[gid].alt_result[1] = alt_result[1]; tmps[gid].alt_result[2] = alt_result[2]; tmps[gid].alt_result[3] = alt_result[3]; tmps[gid].alt_result[4] = alt_result[4]; tmps[gid].alt_result[5] = alt_result[5]; tmps[gid].alt_result[6] = alt_result[6]; tmps[gid].alt_result[7] = alt_result[7]; } KERNEL_FQ void m07400_comp (KERN_ATTR_TMPS (sha256crypt_tmp_t)) { /** * base */ const u64 gid = get_global_id (0); if (gid >= gid_max) return; const u64 lid = get_local_id (0); const u32 r0 = tmps[gid].alt_result[0]; const u32 r1 = tmps[gid].alt_result[1]; const u32 r2 = tmps[gid].alt_result[2]; const u32 r3 = tmps[gid].alt_result[3]; #define il_pos 0 #ifdef KERNEL_STATIC #include COMPARE_M #endif }