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/**
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* Author......: See docs/credits.txt
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* License.....: MIT
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*/
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//#define NEW_SIMD_CODE
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#ifdef KERNEL_STATIC
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#include "inc_vendor.h"
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#include "inc_types.h"
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#include "inc_platform.cl"
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#include "inc_common.cl"
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#include "inc_hash_md5.cl"
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#endif
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#define COMPARE_S "inc_comp_single.cl"
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#define COMPARE_M "inc_comp_multi.cl"
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typedef struct md5crypt_tmp
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{
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u32 digest_buf[4];
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} md5crypt_tmp_t;
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#define md5crypt_magic 0x00243124u
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KERNEL_FQ void m00500_init (KERN_ATTR_TMPS (md5crypt_tmp_t))
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{
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/**
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* base
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*/
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const u64 gid = get_global_id (0);
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if (gid >= GID_CNT) return;
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/**
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* init
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*/
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const u32 pw_len = pws[gid].pw_len;
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u32 w[64] = { 0 };
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for (u32 i = 0, idx = 0; i < pw_len; i += 4, idx += 1)
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{
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w[idx] = pws[gid].i[idx];
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}
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const u32 salt_len = salt_bufs[SALT_POS_HOST].salt_len;
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u32 s[64] = { 0 };
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for (u32 i = 0, idx = 0; i < salt_len; i += 4, idx += 1)
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{
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s[idx] = salt_bufs[SALT_POS_HOST].salt_buf[idx];
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}
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/**
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* prepare
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*/
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md5_ctx_t md5_ctx1;
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md5_init (&md5_ctx1);
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md5_update (&md5_ctx1, w, pw_len);
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md5_update (&md5_ctx1, s, salt_len);
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md5_update (&md5_ctx1, w, pw_len);
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md5_final (&md5_ctx1);
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u32 final[16] = { 0 };
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final[0] = md5_ctx1.h[0];
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final[1] = md5_ctx1.h[1];
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final[2] = md5_ctx1.h[2];
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final[3] = md5_ctx1.h[3];
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md5_ctx_t md5_ctx;
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md5_init (&md5_ctx);
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md5_update (&md5_ctx, w, pw_len);
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u32 m[16] = { 0 };
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m[0] = md5crypt_magic;
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md5_update (&md5_ctx, m, 3);
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md5_update (&md5_ctx, s, salt_len);
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int pl;
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for (pl = pw_len; pl > 16; pl -= 16)
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{
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md5_update (&md5_ctx, final, 16);
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}
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truncate_block_4x4_le_S (final, pl);
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md5_update (&md5_ctx, final, pl);
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/* Then something really weird... */
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for (int i = pw_len; i != 0; i >>= 1)
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{
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u32 t[16] = { 0 };
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if (i & 1)
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{
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t[0] = 0;
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}
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else
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{
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t[0] = w[0] & 0xff;
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}
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md5_update (&md5_ctx, t, 1);
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}
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md5_final (&md5_ctx);
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tmps[gid].digest_buf[0] = md5_ctx.h[0];
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tmps[gid].digest_buf[1] = md5_ctx.h[1];
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tmps[gid].digest_buf[2] = md5_ctx.h[2];
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tmps[gid].digest_buf[3] = md5_ctx.h[3];
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}
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KERNEL_FQ void m00500_loop (KERN_ATTR_TMPS (md5crypt_tmp_t))
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{
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/**
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* base
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*/
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const u64 gid = get_global_id (0);
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if (gid >= GID_CNT) return;
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/**
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* init
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*/
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const u32 pw_len = pws[gid].pw_len;
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u32 w[64] = { 0 };
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for (u32 i = 0, idx = 0; i < pw_len; i += 4, idx += 1)
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{
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w[idx] = pws[gid].i[idx];
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}
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const u32 salt_len = salt_bufs[SALT_POS_HOST].salt_len;
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u32 s[64] = { 0 };
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for (u32 i = 0, idx = 0; i < salt_len; i += 4, idx += 1)
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{
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s[idx] = salt_bufs[SALT_POS_HOST].salt_buf[idx];
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}
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/**
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* digest
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*/
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u32 digest[16] = { 0 };
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digest[0] = tmps[gid].digest_buf[0];
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digest[1] = tmps[gid].digest_buf[1];
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digest[2] = tmps[gid].digest_buf[2];
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digest[3] = tmps[gid].digest_buf[3];
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/**
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* loop
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*/
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for (u32 i = 0, j = LOOP_POS; i < LOOP_CNT; i++, j++)
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{
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md5_ctx_t md5_ctx;
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md5_init (&md5_ctx);
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if (j & 1)
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{
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md5_update (&md5_ctx, w, pw_len);
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}
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else
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{
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md5_update (&md5_ctx, digest, 16);
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}
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if (j % 3)
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{
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md5_update (&md5_ctx, s, salt_len);
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}
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if (j % 7)
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{
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md5_update (&md5_ctx, w, pw_len);
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}
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if (j & 1)
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{
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md5_update (&md5_ctx, digest, 16);
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}
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else
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{
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md5_update (&md5_ctx, w, pw_len);
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}
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md5_final (&md5_ctx);
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digest[0] = md5_ctx.h[0];
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digest[1] = md5_ctx.h[1];
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digest[2] = md5_ctx.h[2];
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digest[3] = md5_ctx.h[3];
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}
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tmps[gid].digest_buf[0] = digest[0];
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tmps[gid].digest_buf[1] = digest[1];
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tmps[gid].digest_buf[2] = digest[2];
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tmps[gid].digest_buf[3] = digest[3];
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}
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KERNEL_FQ void m00500_comp (KERN_ATTR_TMPS (md5crypt_tmp_t))
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{
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/**
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* modifier
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*/
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const u64 gid = get_global_id (0);
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if (gid >= GID_CNT) return;
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const u64 lid = get_local_id (0);
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/**
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* digest
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*/
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const u32 r0 = tmps[gid].digest_buf[DGST_R0];
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const u32 r1 = tmps[gid].digest_buf[DGST_R1];
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const u32 r2 = tmps[gid].digest_buf[DGST_R2];
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const u32 r3 = tmps[gid].digest_buf[DGST_R3];
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#define il_pos 0
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#ifdef KERNEL_STATIC
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#include COMPARE_M
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#endif
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}
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