-static int CmdHelp(const char *Cmd);
-
-/**
- * Packs an HID ID from component parts.
- *
- * This only works with 26, 34, 35, 37, and 48 bit card IDs.
- *
- * Returns false on invalid inputs.
- */
-bool pack_hid(/* out */ uint32_t *hi2, /* out */ uint32_t *hi, /* out */ uint32_t *lo, /* in */ const hid_info *info) {
- uint32_t higher = 0, high = 0, low = 0;
-
- switch (info->fmtLen) {
- case 26: // HID H10301
- low |= (info->cardnum & 0xffff) << 1;
- low |= (info->fc & 0xff) << 17;
-
- if (info->parityValid) {
- // Calculate parity
- low |= oddparity32((low >> 1) & 0xfff) & 1;
- low |= (evenparity32((low >> 13) & 0xfff) & 1) << 25;
- }
- break;
-
- case 34: // H10306
- low |= (info->cardnum & 0xffff) << 1;
- low |= (info->fc & 0x7fff) << 17;
- high |= (info->fc & 0x8000) >> 15;
-
- if (info->parityValid) {
- // Calculate parity
- high |= (evenparity32((high & 0x00000001) ^ (low & 0xFFFE0000)) & 1) << 1;
- low |= (oddparity32(low & 0x0001FFFE) & 1);
- }
- break;
-
- case 35: // (Corporate 1000 35-bit)
- low |= (info->cardnum & 0xfffff) << 1;
- low |= (info->fc & 0x7ff) << 21;
- high |= (info->fc & 0x800) >> 11;
-
- if (info->parityValid) {
- // Calculate parity
- high |= (evenparity32((high & 0x00000001) ^ (low & 0xB6DB6DB6)) & 1) << 1;
- low |= (oddparity32( (high & 0x00000003) ^ (low & 0x6DB6DB6C)) & 1);
- high |= (oddparity32( (high & 0x00000003) ^ (low & 0xFFFFFFFF)) & 1) << 2;
- }
- break;
-
- case 37: //H10304
- low |= (info->cardnum & 0x7ffff) << 1;
- low |= (info->fc & 0xfff) << 20;
- high |= (info->fc & 0xf000) >> 12;
-
- if (info->parityValid) {
- // Calculate parity
- high |= (evenparity32((high & 0x0000000F) ^ (low & 0xFFFC0000)) & 1) << 4;
- low |= (oddparity32(low & 0x0007FFFE) & 1);
- }
- break;
-
- case 48: // Corporate 1000 48-bit
- low |= (info->cardnum & 0x7FFFFF) << 1;
- low |= (info->fc & 0xff) << 24;
- high |= (info->fc & 0x3FFF00) >> 8;
-
- if (info->parityValid) {
- // Calculate parity
- high |= (evenparity32((high & 0x00001B6D) ^ (low & 0xB6DB6DB6)) & 1) << 14;
- low |= (oddparity32( (high & 0x000036DB) ^ (low & 0x6DB6DB6C)) & 1);
- high |= (oddparity32( (high & 0x00007FFF) ^ (low & 0xFFFFFFFF)) & 1) << 15;
- }
- break;
-
- default:
- // Invalid / unsupported length
- return false;
- }
-
- // Set the format length bits
- if (info->fmtLen < 37) {
- // Bit 37 is always set
- high |= 0x20;
-
- // Set the bit corresponding to the length.
- if (info->fmtLen < 32)
- low |= 1 << info->fmtLen;
- else
- high |= 1 << (info->fmtLen - 32);
-
- } else if (info->fmtLen > 37){
- if (info->fmtLen < 64)
- high |= 1 << (info->fmtLen - 32);
- else
- higher |= 1 << (info->fmtLen - 64);
- }
- // Return result only if successful.
- *hi2 = higher;
- *hi = high;
- *lo = low;
- return true;
-}
-
-/**
- * Unpacks an HID ID into its component parts.
- *
- * This only works with 26, 34, 35, 37, and 48 bit card IDs.
- *
- * Returns false on invalid inputs.
- */
-bool unpack_hid(hid_info *out, uint32_t hi2, uint32_t hi, uint32_t lo) {
- memset(out, 0, sizeof(hid_info));
- uint8_t fmtLen = 0;
-
- uint32_t hFmt; // for calculating card length
- if ((hi2 & 0x000FFFFF) > 0) { // > 64 bits
- hFmt = hi2 & 0x000FFFFF;
- fmtLen = 64;
- } else if ((hi & 0xFFFFFFC0) > 0) { // < 63-38 bits
- hFmt = hi & 0xFFFFFFC0;
- fmtLen = 32;
- } else if ((hi & 0x00000020) == 0) { // 37 bits
- hFmt = 0;
- fmtLen = 37;
- } else if ((hi & 0x0000001F) > 0){ // 36-32 bits
- hFmt = hi & 0x0000001F;
- fmtLen = 32;
- } else { // <32 bits
- hFmt = lo;
- fmtLen = 0;
- }
-
- while (hFmt > 1) {
- hFmt >>= 1;
- fmtLen++;
- }
- out->fmtLen = fmtLen;
- switch (out->fmtLen) {
- case 26: // HID H10301
- out->cardnum = (lo >> 1) & 0xFFFF;
- out->fc = (lo >> 17) & 0xFF;
-
- if (g_debugMode) {
- PrintAndLog("oddparity : input=%x, calculated=%d, provided=%d",
- (lo >> 1) & 0xFFF, oddparity32((lo >> 1) & 0xFFF), lo & 1);
- PrintAndLog("evenparity: input=%x, calculated=%d, provided=%d",
- (lo >> 13) & 0xFFF, evenparity32((lo >> 13) & 0xFFF) & 1, (lo >> 25) & 1);
- }
-
- out->parityValid =
- (oddparity32((lo >> 1) & 0xFFF) == (lo & 1)) &&
- ((evenparity32((lo >> 13) & 0xFFF) & 1) == ((lo >> 25) & 1));
- break;
-
- case 34: // HID H10306
- out->cardnum = (lo >> 1) & 0xFFFF;
- out->fc = ((hi & 1) << 15) | (lo >> 17);
- out->parityValid =
- ((evenparity32((hi & 0x00000001) ^ (lo & 0xFFFE0000)) & 1) == ((hi >> 1) & 1)) &&
- ((oddparity32(lo & 0x0001FFFE) & 1) == ((lo & 1)));
- break;
-
- case 35: // HID Corporate 1000-35
- out->cardnum = (lo >> 1) & 0xFFFFF;
- out->fc = ((hi & 1) << 11) | (lo >> 21);
- out->parityValid =
- (evenparity32((hi & 0x00000001) ^ (lo & 0xB6DB6DB6)) == ((hi >> 1) & 1)) &&
- (oddparity32( (hi & 0x00000003) ^ (lo & 0x6DB6DB6C)) == ((lo >> 0) & 1)) &&
- (oddparity32( (hi & 0x00000003) ^ (lo & 0xFFFFFFFF)) == ((hi >> 2) & 1));
- if (g_debugMode) {
- PrintAndLog("Parity check: calculated {%d, %d, %d}, provided {%d, %d, %d}",
- evenparity32((hi & 0x00000001) ^ (lo & 0xB6DB6DB6)),
- oddparity32( (hi & 0x00000003) ^ (lo & 0x6DB6DB6C)),
- oddparity32( (hi & 0x00000003) ^ (lo & 0xFFFFFFFF)),
- ((hi >> 1) & 1),
- ((lo >> 0) & 1),
- ((hi >> 2) & 1)
- );
- }
- break;
-
- case 37: // HID H10304
- out->fmtLen = 37;
- out->cardnum = (lo >> 1) & 0x7FFFF;
- out->fc = ((hi & 0xF) << 12) | (lo >> 20);
- out->parityValid =
- (evenparity32((hi & 0x0000000F) ^ (lo & 0xFFFC0000)) == ((hi >> 4) & 1)) &&
- (oddparity32( lo & 0x0007FFFE) == (lo & 1));
- break;
-
- case 48: // HID Corporate 1000-48
- out->cardnum = (lo >> 1) & 0x7FFFFF; //Start 24, 23 length
- out->fc = ((hi & 0x3FFF) << 8 ) | (lo >> 24); //Start 2, 22 length
- out->parityValid =
- (evenparity32((hi & 0x00001B6D) ^ (lo & 0xB6DB6DB6)) == ((hi >> 14) & 1)) &&
- (oddparity32( (hi & 0x000036DB) ^ (lo & 0x6DB6DB6C)) == ((lo >> 0) & 1)) &&
- (oddparity32( (hi & 0x00007FFF) ^ (lo & 0xFFFFFFFF)) == ((hi >> 15) & 1));
- if (g_debugMode) {
- PrintAndLog("Parity check: calculated {%d, %d, %d}, provided {%d, %d, %d}",
- evenparity32((hi & 0x00001B6D) ^ (lo & 0xB6DB6DB6)),
- oddparity32( (hi & 0x000036DB) ^ (lo & 0x6DB6DB6C)),
- oddparity32( (hi & 0x00007FFF) ^ (lo & 0xFFFFFFFF)),
- ((hi >> 14) & 1),
- ((lo >> 0) & 1),
- ((hi >> 15) & 1)
- );
- }
- break;
-
- default:
- return false;
- }
- return true;
-}