remove direct write check

utils/nfc-mfclassic.c

@@ -582,57 +582,6 @@ print_usage(const char *pcProgramName)
 }
 
 
-static bool is_directwrite(bool test_write)
-{
- printf("Checking if Badge is DirectWrite...\n");
-
- // Set default keys
- memcpy(mtDump.amb[0].mbt.abtKeyA, default_key, sizeof(default_key));
- memcpy(mtDump.amb[0].mbt.abtAccessBits, default_acl, sizeof(mp.mpt.abtAccessBits));
- memcpy(mtDump.amb[0].mbt.abtKeyB, default_key, sizeof(default_key));
-
- // Temporarly override bUseKeyFile
- bool orig_bUseKeyFile = bUseKeyFile;
- bUseKeyFile = false;
- // Try to authenticate for the current sector
- if (!authenticate(0)) {
- printf("!\nError: authentication failed for block 0x00\n");
- bUseKeyFile = orig_bUseKeyFile;
- return false;
- }
- // restore bUseKeyFile
- bUseKeyFile = orig_bUseKeyFile;
-
- // Try to read block 0
- uint8_t original_b0[16];
- if (nfc_initiator_mifare_cmd(pnd, MC_READ, 0, &mp)) {
- memcpy(original_b0, mp.mpd.abtData, sizeof(mp.mpd.abtData));
- printf(" Original Block 0: ");
- for (int i = 0; i < 16; i++) {
- printf("%02x", original_b0[i]);
- }
- printf("\n");
- printf(" Original UID: %02x%02x%02x%02x\n",
- original_b0[0], original_b0[1], original_b0[2], original_b0[3]);
- } else {
- printf("!\nError: unable to read block 0x00\n");
- return false;
- }
-
- if(!test_write)
- return true;
-
- printf(" Attempt to write Block 0 ...\n");
- memcpy(mp.mpd.abtData, original_b0, sizeof(original_b0));
- if (!nfc_initiator_mifare_cmd(pnd, MC_WRITE, 0, &mp)) {
- printf("Failure to write to data block 0\n");
- return false;
- }
- printf(" Block 0 written successfully\n");
-
- return true;
-}
-
 int
 main(int argc, const char *argv[])
 {
@@ -850,19 +799,6 @@ main(int argc, const char *argv[])
  printf("RATS support: no\n");
  printf("Guessing size: seems to be a %lu-byte card\n", (unsigned long)((uiBlocks + 1) * sizeof(mifare_classic_block)));
 
- //If size is 4k check for direct-write card
- if (uiBlocks == 0xff) {
- if (is_directwrite(atAction == ACTION_WRITE)) {
- printf("Card is DirectWrite\n");
- magic3 = true;
- } else {
- printf("Card is not DirectWrite\n");
- // reset after error
- if (nfc_initiator_select_passive_target(pnd, nmMifare, nt.nti.nai.abtUid, nt.nti.nai.szUidLen, NULL) <= 0) {
- ERR("tag was removed");
- }
- }
- }
 
  //Check to see if we have a One Time Write badge (magic3)
  if (pbtUID[0] == 0xaa && pbtUID[1] == 0x55 &&