生成 Solution Manager Key 的 ABAP 程序

    安装 SAP ECC5/6 的时候，必须要输入一个 Solution Manager Key，这个号一般需要通过 SAP 提供的 Solution Manager 服务器来生成，但是很多时候我们不想安装这个庞大的系统（15G 左右）。用下面这个小小的 ABAP 程序，我们就可以快速生成 Solution Manager Key 了。

REPORT  ZSLMKEY.

types: begin of dswpclientkey,
         INSTNO type num10,
         DBID(3),
         BUNDLE_ID(8),
         SERVICE_KEY(40),
       end of dswpclientkey.
*data: dswpclientkey_w type standard table of dswpclientkey.
DATA: P_VALUE(10),
      P_INSTNO(10).

PARAMETERS: P_SID(3),
             P_SYSNO(2),
             P_SERVER(15).

START-OF-SELECTION.
  PERFORM GET_SP_VALUE USING P_SID
                             P_SYSNO
                             P_SERVER
                             P_INSTNO
                    CHANGING P_VALUE.

END-OF-SELECTION.
  WRITE P_VALUE.
*&---------------------------------------------------------------------*
*&      Form  get_sp_value
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*      -->P_PF_SID  text
*      -->P_PF_SYSNO  text
*      -->P_PF_SERVER  text
*      <--P_PF_VALUE  text
*----------------------------------------------------------------------*
FORM get_sp_value USING    P_PF_SID
                           P_PF_SYSNO
                           P_PF_SERVER
                           P_PF_INSTNO
                  CHANGING P_PF_VALUE.

  CONSTANTS: lc_part_len TYPE i VALUE 5,
             lc_pw_len   TYPE i VALUE 10,
             lc_allowed_chars(38) TYPE c VALUE
             '-0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ_'.

  data: lf_string(20)        type c,
        lf_key               type i,
        ls_key               type dswpclientkey,
        lf_part(lc_part_len) type c,
        lf_finalf(lc_pw_len) type c,
        lf_finalx            type xstring,
        lf_xbuffer           type xstring,
        lf_opf(10)           type c,
        lf_langu             like sy-langu,
        lf_subrc             like sy-subrc,
        lf_len               type i,
        lo_conv_to_x         TYPE REF TO cl_abap_conv_out_ce.

  clear: lf_string, lf_finalx, lf_opf.

  concatenate p_pf_sid p_pf_sysno p_pf_server into lf_string.

* Large letters only
  translate lf_string to upper case.

  lf_langu = sy-langu.
  SET LOCALE LANGUAGE 'E'.
  lo_conv_to_x = cl_abap_conv_out_ce=>create( encoding = '1100' ).
  lf_len = STRLEN( lf_string ).

  IF lf_string(lf_len) CN lc_allowed_chars.
  else.

* Fold the input string to a lc_part_len long string
    WHILE lf_len > 0.
      lf_part = lf_string(lc_part_len).
      SHIFT lf_string BY lc_part_len PLACES.
      lf_len = STRLEN( lf_string ).
      CALL METHOD lo_conv_to_x->reset.
      CALL METHOD lo_conv_to_x->write( data = lf_part n = -1 ).
      lf_xbuffer = lo_conv_to_x->get_buffer( ).
      lf_finalx = lf_finalx BIT-XOR lf_xbuffer.
    ENDWHILE.

    lf_key = 12.

    PERFORM scramble USING      lf_finalx
                                lf_key
                                lc_part_len
                       CHANGING lf_finalf
                                lf_subrc.

    if not lf_finalf is initial.
      p_pf_value = lf_finalf.
      ls_key-dbid        = p_pf_sid.
      ls_key-instno      = p_pf_instno.
      ls_key-bundle_id   = 'SM_KEY'.
      ls_key-service_key = lf_finalf.
      if not p_pf_instno is initial.
*        insert dswpclientkey_w from ls_key.
        if sy-subrc <> 0.
*          update dswpclientkey_w from ls_key.
        endif.
      endif.
    else.
      clear p_pf_value.
    endif.
  endif.
ENDFORM.                    " get_sp_value
*&---------------------------------------------------------------------*
*&      Form  scramble
*&---------------------------------------------------------------------*
*       text
*----------------------------------------------------------------------*
*      -->P_LF_FINALX  text
*      -->P_LF_KEY  text
*      -->P_LC_PART_LEN  text
*      <--P_LF_finalf  text
*      <--P_LF_SUBRC  text
*----------------------------------------------------------------------*
FORM scramble USING    iv_xstring TYPE xstring
                       iv_key TYPE i
                       iv_src_len TYPE i
              CHANGING lf_finalf
                       lf_subrc LIKE sy-subrc.

  CONSTANTS: lc_max_len    TYPE i VALUE 20,
             lc_mask(4)    TYPE x VALUE '0000003F',
             lc_random(64) TYPE x VALUE
                      'F0ED53B83244F1F876C67959FD4F13A2' &
                      'C15195EC5483C234774943A27DE26596' &
                      '5E5398789A17A33CD383A8B829FBDCA5' &
                      '55D702778413ACDDF9B83116610E6DFA'.

  DATA: lv_key_index(4)  TYPE x,
        lv_rand_index(4) TYPE x,
        lv_xkey(4)       TYPE x,
        lv_xkey_shl_1(4) TYPE x,
        lv_xkey_shr_5(4) TYPE x,
        lv_scramble_byte TYPE x,
        lv_dest(lc_max_len) TYPE x,
        lv_index         TYPE i,
        lv_len           TYPE i.

  CLEAR lf_subrc.

  IF iv_src_len EQ 0. EXIT. ENDIF.
  lv_len = XSTRLEN( iv_xstring ).
  IF iv_src_len GT lc_max_len OR
     iv_src_len GT lv_len.
    lf_subrc = 2.
    EXIT.
  ENDIF.

  lv_xkey       = iv_key.
  lv_xkey_shl_1 = iv_key * 2.
  lv_xkey_shr_5 = iv_key DIV 32.
  lv_rand_index = lv_xkey BIT-XOR lv_xkey_shr_5 BIT-XOR lv_xkey_shl_1.
  lv_rand_index = lv_rand_index BIT-AND lc_mask.

  lv_index = 0.
  DO iv_src_len TIMES.
    CATCH SYSTEM-EXCEPTIONS compute_int_times_overflow = 1.
      lv_key_index = ( iv_key * lv_index * lv_index ) - lv_index.
    ENDCATCH.
    IF sy-subrc <> 0.
      lf_subrc = 1.
      EXIT.
    ENDIF.
    lv_scramble_byte = lc_random+lv_rand_index(1) BIT-XOR
                       lv_key_index+3(1).
    lv_dest+lv_index(1) = iv_xstring+lv_index(1) BIT-XOR
                          lv_scramble_byte.
    lv_index = lv_index + 1.
    lv_rand_index = lv_rand_index + 1.
    lv_rand_index = lv_rand_index BIT-AND lc_mask.
  ENDDO.
  IF lf_subrc <> 0.
    EXIT.
  ENDIF.

  WRITE lv_dest(iv_src_len) TO lf_finalf.

ENDFORM.                    " scramble