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

//#define NEW_SIMD_CODE

#ifdef KERNEL_STATIC
#include M2S(INCLUDE_PATH/inc_vendor.h)
#include M2S(INCLUDE_PATH/inc_types.h)
#include M2S(INCLUDE_PATH/inc_platform.cl)
#include M2S(INCLUDE_PATH/inc_common.cl)
#include M2S(INCLUDE_PATH/inc_scalar.cl)
#include M2S(INCLUDE_PATH/inc_hash_sha1.cl)
#endif

typedef struct sha1_double_salt
{
  u32 salt1_buf[64];
  int salt1_len;

  u32 salt2_buf[64];
  int salt2_len;

} sha1_double_salt_t;

KERNEL_FQ KERNEL_FA void m29000_mxx (KERN_ATTR_ESALT (sha1_double_salt_t))
{
  /**
   * modifier
   */

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

  if (gid >= GID_CNT) return;

  /**
   * base
   */

  u32 s2[64] = { 0 };

  const int salt2_len = esalt_bufs[DIGESTS_OFFSET_HOST].salt2_len;

  const u32 colon[16] = {0x3a000000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };

  for (int i = 0, idx = 0; i < salt2_len; i += 4, idx += 1)
  {
    s2[idx] = esalt_bufs[DIGESTS_OFFSET_HOST].salt2_buf[idx];
  }

  sha1_ctx_t ctx0;

  sha1_init (&ctx0);

  sha1_update_global_swap (&ctx0, esalt_bufs[SALT_POS_HOST].salt1_buf, esalt_bufs[SALT_POS_HOST].salt1_len);

  sha1_ctx_t ctx1l;

  sha1_init (&ctx1l);

  sha1_update_global_utf16le_swap (&ctx1l, esalt_bufs[SALT_POS_HOST].salt2_buf, esalt_bufs[SALT_POS_HOST].salt2_len);

  sha1_update(&ctx1l, colon, 1);

  sha1_update_global_utf16le_swap (&ctx1l, pws[gid].i, pws[gid].pw_len);

  /**
   * loop
   */

  for (u32 il_pos = 0; il_pos < IL_CNT; il_pos++)
  {
    sha1_ctx_t ctx1 = ctx1l;

    sha1_update_global_utf16le_swap (&ctx1, combs_buf[il_pos].i, combs_buf[il_pos].pw_len);

    sha1_final (&ctx1);

    sha1_ctx_t ctx = ctx0;

    u32 w0[4];
    u32 w1[4];
    u32 w2[4];
    u32 w3[4];

    w0[0] = ctx1.h[0];
    w0[1] = ctx1.h[1];
    w0[2] = ctx1.h[2];
    w0[3] = ctx1.h[3];
    w1[0] = ctx1.h[4];
    w1[1] = 0;
    w1[2] = 0;
    w1[3] = 0;
    w2[0] = 0;
    w2[1] = 0;
    w2[2] = 0;
    w2[3] = 0;
    w3[0] = 0;
    w3[1] = 0;
    w3[2] = 0;
    w3[3] = 0;

    sha1_update_64 (&ctx, w0, w1, w2, w3, 20);

    sha1_final (&ctx);

    const u32 r0 = ctx.h[DGST_R0];
    const u32 r1 = ctx.h[DGST_R1];
    const u32 r2 = ctx.h[DGST_R2];
    const u32 r3 = ctx.h[DGST_R3];

    COMPARE_M_SCALAR (r0, r1, r2, r3);
  }
}

KERNEL_FQ KERNEL_FA void m29000_sxx (KERN_ATTR_ESALT (sha1_double_salt_t))
{
  /**
   * modifier
   */

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

  if (gid >= GID_CNT) return;

  /**
   * digest
   */

  const u32 search[4] =
  {
    digests_buf[DIGESTS_OFFSET_HOST].digest_buf[DGST_R0],
    digests_buf[DIGESTS_OFFSET_HOST].digest_buf[DGST_R1],
    digests_buf[DIGESTS_OFFSET_HOST].digest_buf[DGST_R2],
    digests_buf[DIGESTS_OFFSET_HOST].digest_buf[DGST_R3]
  };

  /**
   * base
   */

  const u32 colon[16] = {0x3a000000, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };

  sha1_ctx_t ctx0;

  sha1_init (&ctx0);

  sha1_update_global_swap (&ctx0, esalt_bufs[SALT_POS_HOST].salt1_buf, esalt_bufs[SALT_POS_HOST].salt1_len);

  sha1_ctx_t ctx1l;

  sha1_init (&ctx1l);

  sha1_update_global_utf16le_swap (&ctx1l, esalt_bufs[SALT_POS_HOST].salt2_buf, esalt_bufs[SALT_POS_HOST].salt2_len);

  sha1_update(&ctx1l, colon, 1);

  sha1_update_global_utf16le_swap (&ctx1l, pws[gid].i, pws[gid].pw_len);

  /**
   * loop
   */

  for (u32 il_pos = 0; il_pos < IL_CNT; il_pos++)
  {
    sha1_ctx_t ctx1 = ctx1l;

    sha1_update_global_utf16le_swap (&ctx1, combs_buf[il_pos].i, combs_buf[il_pos].pw_len);

    sha1_final (&ctx1);

    sha1_ctx_t ctx = ctx0;

    u32 w0[4];
    u32 w1[4];
    u32 w2[4];
    u32 w3[4];

    w0[0] = ctx1.h[0];
    w0[1] = ctx1.h[1];
    w0[2] = ctx1.h[2];
    w0[3] = ctx1.h[3];
    w1[0] = ctx1.h[4];
    w1[1] = 0;
    w1[2] = 0;
    w1[3] = 0;
    w2[0] = 0;
    w2[1] = 0;
    w2[2] = 0;
    w2[3] = 0;
    w3[0] = 0;
    w3[1] = 0;
    w3[2] = 0;
    w3[3] = 0;

    sha1_update_64 (&ctx, w0, w1, w2, w3, 20);

    sha1_final (&ctx);

    const u32 r0 = ctx.h[DGST_R0];
    const u32 r1 = ctx.h[DGST_R1];
    const u32 r2 = ctx.h[DGST_R2];
    const u32 r3 = ctx.h[DGST_R3];

    COMPARE_S_SCALAR (r0, r1, r2, r3);
  }
}
