105 lines
2.7 KiB
JavaScript
105 lines
2.7 KiB
JavaScript
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var encscans = [0x05,0x10,0x13,0x09,0x32,0x03,0x25,0x11,0x1F,0x17,0x06,
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0x15,0x30,0x19,0x26,0x22,0x0A,0x02,0x2C,0x2F,0x16,0x14,0x07,
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0x18,0x24,0x23,0x31,0x20,0x1E,0x08,0x2D,0x21,0x04,0x0B,0x12,
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0x2E];
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function ord(str){
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return str.charCodeAt(0);
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}
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function StrintToArray(str){
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var arr = [];
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for(var i=0;i<str.length;i++){
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arr[i] = ord(str.charAt(i));
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}
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return arr;
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}
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function toByte(arr){
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for(var i=0;i<arr.length;i++){
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arr[i] = arr[i] & 0xFF;
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}
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return arr;
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}
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function calc_in(l_arr){
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return [ (l_arr[1] >> 1),
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((l_arr[1] >> 6) | (l_arr[0] << 2)),
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(l_arr[0] >> 3) ];
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}
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function begin_calc(serial, s_arr){
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var ret_arr = [];
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if(typeof(serial)=="string"){
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serial = StrintToArray(serial);
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}
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ret_arr[0] = serial[ s_arr[3] ];
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ret_arr[1] = ( serial[ s_arr[3] ] >> 5) |
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(( (serial[ s_arr[2] ] >> 5) | (serial[ s_arr[2] ] << 3))
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& 0xF1);
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ret_arr[2] = (serial[ s_arr[2] ] >> 2);
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ret_arr[3] = (serial[ s_arr[2] ] >> 7) | (serial[ s_arr[1] ] << 1);
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ret_arr[4] = (serial[ s_arr[1] ] >> 4) | (serial[ s_arr[0] ] << 4);
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ret_arr = ret_arr.concat(calc_in(serial));
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return toByte(ret_arr);
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}
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function end_calc(serial, calced_arr, s_arr){
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var r = 0;
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var ret_arr = [];
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for (var i=0;i<8;i++) {
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r = 0xAA;
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(calced_arr[i] & 1) && (r ^= serial[ s_arr[0] ]);
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(calced_arr[i] & 2) && (r ^= serial[ s_arr[1] ]);
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(calced_arr[i] & 4) && ( r ^= serial[ s_arr[2] ]);
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(calced_arr[i] & 8) && (r ^= serial[1]);
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(calced_arr[i] & 16) && (r ^= serial[0]);
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ret_arr[i] = encscans[r % encscans.length];
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}
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return ret_arr;
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}
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function calc_suffix_shortcut(serial, s_arr1, s_arr2){
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var serial_arr = StrintToArray(serial);
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var ret_arr = begin_calc(serial_arr,s_arr1);
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return end_calc(serial_arr, ret_arr, s_arr2);
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}
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function calc_suffix_tag(serial){
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return calc_suffix_shortcut(serial, [1,2,3,4],[4,3,2]);
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}
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function calc_suffix_hdd_new(serial){
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return calc_suffix_shortcut(serial, [1,10,9,8], [8,9,10]);
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}
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/* Depends only in first two chars */
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function calc_suffix_hdd_old(serial){
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// encscans[26], enscans[0xAA % enscans.length]
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var ret_arr = [49,49,49,49,49];
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var serial_arr = StrintToArray(serial);
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ret_arr = ret_arr.concat(calc_in(serial_arr));
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// lower bits then 5 are never change
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for(var i=5;i<8;i++){
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var r = 0xAA;
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(ret_arr[i] & 8) && (r ^= serial[1]);
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(ret_arr[i] & 16) && (r ^= serial[0]);
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ret_arr[i] = encscans[ r % encscans.length];
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}
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return ret_arr;
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}
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function dell_service_tag(serial){
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}
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