/**
 * Author......: See docs/credits.txt
 * License.....: MIT
 */

#ifdef KERNEL_STATIC
#include "inc_vendor.h"
#include "inc_types.h"
#include "inc_platform.cl"
#include "inc_common.cl"
#include "inc_hash_sha1.cl"
#endif

#define COMPARE_S "inc_comp_single.cl"
#define COMPARE_M "inc_comp_multi.cl"

typedef struct androidpin_tmp
{
  u32 digest_buf[5];

} androidpin_tmp_t;

CONSTANT_AS u32a c_pc_dec[1024] =
{
  0x00000030,
  0x00000031,
  0x00000032,
  0x00000033,
  0x00000034,
  0x00000035,
  0x00000036,
  0x00000037,
  0x00000038,
  0x00000039,
  0x00003031,
  0x00003131,
  0x00003231,
  0x00003331,
  0x00003431,
  0x00003531,
  0x00003631,
  0x00003731,
  0x00003831,
  0x00003931,
  0x00003032,
  0x00003132,
  0x00003232,
  0x00003332,
  0x00003432,
  0x00003532,
  0x00003632,
  0x00003732,
  0x00003832,
  0x00003932,
  0x00003033,
  0x00003133,
  0x00003233,
  0x00003333,
  0x00003433,
  0x00003533,
  0x00003633,
  0x00003733,
  0x00003833,
  0x00003933,
  0x00003034,
  0x00003134,
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  0x00003334,
  0x00003434,
  0x00003534,
  0x00003634,
  0x00003734,
  0x00003834,
  0x00003934,
  0x00003035,
  0x00003135,
  0x00003235,
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  0x00003935,
  0x00003036,
  0x00003136,
  0x00003236,
  0x00003336,
  0x00003436,
  0x00003536,
  0x00003636,
  0x00003736,
  0x00003836,
  0x00003936,
  0x00003037,
  0x00003137,
  0x00003237,
  0x00003337,
  0x00003437,
  0x00003537,
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  0x00003837,
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  0x00393838,
  0x00303938,
  0x00313938,
  0x00323938,
  0x00333938,
  0x00343938,
  0x00353938,
  0x00363938,
  0x00373938,
  0x00383938,
  0x00393938,
  0x00303039,
  0x00313039,
  0x00323039,
  0x00333039,
  0x00343039,
  0x00353039,
  0x00363039,
  0x00373039,
  0x00383039,
  0x00393039,
  0x00303139,
  0x00313139,
  0x00323139,
  0x00333139,
  0x00343139,
  0x00353139,
  0x00363139,
  0x00373139,
  0x00383139,
  0x00393139,
  0x00303239,
  0x00313239,
  0x00323239,
  0x00333239,
  0x00343239,
  0x00353239,
  0x00363239,
  0x00373239,
  0x00383239,
  0x00393239,
  0x00303339,
  0x00313339,
  0x00323339,
  0x00333339,
  0x00343339,
  0x00353339,
  0x00363339,
  0x00373339,
  0x00383339,
  0x00393339,
  0x00303439,
  0x00313439,
  0x00323439,
  0x00333439,
  0x00343439,
  0x00353439,
  0x00363439,
  0x00373439,
  0x00383439,
  0x00393439,
  0x00303539,
  0x00313539,
  0x00323539,
  0x00333539,
  0x00343539,
  0x00353539,
  0x00363539,
  0x00373539,
  0x00383539,
  0x00393539,
  0x00303639,
  0x00313639,
  0x00323639,
  0x00333639,
  0x00343639,
  0x00353639,
  0x00363639,
  0x00373639,
  0x00383639,
  0x00393639,
  0x00303739,
  0x00313739,
  0x00323739,
  0x00333739,
  0x00343739,
  0x00353739,
  0x00363739,
  0x00373739,
  0x00383739,
  0x00393739,
  0x00303839,
  0x00313839,
  0x00323839,
  0x00333839,
  0x00343839,
  0x00353839,
  0x00363839,
  0x00373839,
  0x00383839,
  0x00393839,
  0x00303939,
  0x00313939,
  0x00323939,
  0x00333939,
  0x00343939,
  0x00353939,
  0x00363939,
  0x00373939,
  0x00383939,
  0x00393939,
  0x30303031,
  0x31303031,
  0x32303031,
  0x33303031,
  0x34303031,
  0x35303031,
  0x36303031,
  0x37303031,
  0x38303031,
  0x39303031,
  0x30313031,
  0x31313031,
  0x32313031,
  0x33313031,
  0x34313031,
  0x35313031,
  0x36313031,
  0x37313031,
  0x38313031,
  0x39313031,
  0x30323031,
  0x31323031,
  0x32323031,
  0x33323031,
};

CONSTANT_AS u32a c_pc_len[1024] =
{
  1,
  1,
  1,
  1,
  1,
  1,
  1,
  1,
  1,
  1,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  2,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  3,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4,
  4
};

KERNEL_FQ void m05800_init (KERN_ATTR_TMPS (androidpin_tmp_t))
{
  const u64 gid = get_global_id (0);

  if (gid >= gid_max) return;

  sha1_ctx_t ctx;

  sha1_init (&ctx);

  u32 w0[4] = { 0 }; w0[0] = 0x30000000;
  u32 w1[4] = { 0 };
  u32 w2[4] = { 0 };
  u32 w3[4] = { 0 };

  sha1_update_64 (&ctx, w0, w1, w2, w3, 1);

  sha1_update_global_swap (&ctx, pws[gid].i, pws[gid].pw_len);

  sha1_update_global_swap (&ctx, salt_bufs[salt_pos].salt_buf, salt_bufs[salt_pos].salt_len);

  sha1_final (&ctx);

  tmps[gid].digest_buf[0] = ctx.h[0];
  tmps[gid].digest_buf[1] = ctx.h[1];
  tmps[gid].digest_buf[2] = ctx.h[2];
  tmps[gid].digest_buf[3] = ctx.h[3];
  tmps[gid].digest_buf[4] = ctx.h[4];
}

KERNEL_FQ void m05800_loop (KERN_ATTR_TMPS (androidpin_tmp_t))
{
  /**
   * base
   */

  const u64 gid = get_global_id (0);
  const u64 lid = get_local_id (0);
  const u64 lsz = get_local_size (0);

  /**
   * cache precomputed conversion table in shared memory
   */

  LOCAL_AS u32 s_pc_dec[1024];
  LOCAL_AS u32 s_pc_len[1024];

  for (u32 i = lid; i < 1024; i += lsz)
  {
    s_pc_dec[i] = c_pc_dec[i];
    s_pc_len[i] = c_pc_len[i];
  }

  SYNC_THREADS ();

  if (gid >= gid_max) return;

  /**
   * init
   */

  const u32 pw_len = pws[gid].pw_len;

  u32 w[64] = { 0 };

  for (u32 i = 0, idx = 0; i < pw_len; i += 4, idx += 1)
  {
    w[idx] = hc_swap32_S (pws[gid].i[idx]);
  }

  const u32 salt_len = salt_bufs[salt_pos].salt_len;

  u32 s[64] = { 0 };

  for (u32 i = 0, idx = 0; i < salt_len; i += 4, idx += 1)
  {
    s[idx] = hc_swap32_S (salt_bufs[salt_pos].salt_buf[idx]);
  }

  u32 digest[5];

  digest[0] = tmps[gid].digest_buf[0];
  digest[1] = tmps[gid].digest_buf[1];
  digest[2] = tmps[gid].digest_buf[2];
  digest[3] = tmps[gid].digest_buf[3];
  digest[4] = tmps[gid].digest_buf[4];

  /**
   * loop
   */

  for (u32 i = 0, j = loop_pos + 1; i < loop_cnt; i++, j++)
  {
    const u32 pc_dec = s_pc_dec[j];
    const u32 pc_len = s_pc_len[j];

    sha1_ctx_t ctx;

    sha1_init (&ctx);

    ctx.w0[0] = digest[0];
    ctx.w0[1] = digest[1];
    ctx.w0[2] = digest[2];
    ctx.w0[3] = digest[3];
    ctx.w1[0] = digest[4];
    ctx.w1[1] = hc_swap32_S (pc_dec);

    ctx.len = 20 + pc_len;

    sha1_update (&ctx, w, pw_len);

    sha1_update (&ctx, s, salt_len);

    sha1_final (&ctx);

    digest[0] = ctx.h[0];
    digest[1] = ctx.h[1];
    digest[2] = ctx.h[2];
    digest[3] = ctx.h[3];
    digest[4] = ctx.h[4];
  }

  tmps[gid].digest_buf[0] = digest[0];
  tmps[gid].digest_buf[1] = digest[1];
  tmps[gid].digest_buf[2] = digest[2];
  tmps[gid].digest_buf[3] = digest[3];
  tmps[gid].digest_buf[4] = digest[4];
}

KERNEL_FQ void m05800_comp (KERN_ATTR_TMPS (androidpin_tmp_t))
{
  /**
   * modifier
   */

  const u64 gid = get_global_id (0);

  if (gid >= gid_max) return;

  const u64 lid = get_local_id (0);

  /**
   * digest
   */

  const u32 r0 = tmps[gid].digest_buf[DGST_R0];
  const u32 r1 = tmps[gid].digest_buf[DGST_R1];
  const u32 r2 = tmps[gid].digest_buf[DGST_R2];
  const u32 r3 = tmps[gid].digest_buf[DGST_R3];

  #define il_pos 0

  #ifdef KERNEL_STATIC
  #include COMPARE_M
  #endif
}