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/* SPDX-License-Identifier: LGPL-2.1 */
#include "MFRC522Debug.h"
/**
* Returns a __FlashStringHelper pointer to the PICC type name.
*
* @return const __FlashStringHelper *
*/
const __FlashStringHelper *MFRC522Debug::PICC_GetTypeName(PICC_Type piccType ///< One of the PICC_Type enums.
) {
switch(piccType) {
case PICC_Type::PICC_TYPE_ISO_14443_4:
return F("PICC compliant with ISO/IEC 14443-4");
case PICC_Type::PICC_TYPE_ISO_18092:
return F("PICC compliant with ISO/IEC 18092 (NFC)");
case PICC_Type::PICC_TYPE_MIFARE_MINI:
return F("MIFARE Mini, 320 bytes");
case PICC_Type::PICC_TYPE_MIFARE_1K:
return F("MIFARE 1KB");
case PICC_Type::PICC_TYPE_MIFARE_4K:
return F("MIFARE 4KB");
case PICC_Type::PICC_TYPE_MIFARE_UL:
return F("MIFARE Ultralight or Ultralight C");
case PICC_Type::PICC_TYPE_MIFARE_PLUS:
return F("MIFARE Plus");
case PICC_Type::PICC_TYPE_MIFARE_DESFIRE:
return F("MIFARE DESFire");
case PICC_Type::PICC_TYPE_TNP3XXX:
return F("MIFARE TNP3XXX");
case PICC_Type::PICC_TYPE_NOT_COMPLETE:
return F("SAK indicates UID is not complete.");
case PICC_Type::PICC_TYPE_UNKNOWN:
default:
return F("Unknown type");
}
} // End PICC_GetTypeName()
/**
* Returns a __FlashStringHelper pointer to a status code name.
*
* @return const __FlashStringHelper *
*/
const __FlashStringHelper *MFRC522Debug::GetStatusCodeName(StatusCode code ///< One of the StatusCode enums.
) {
switch(code) {
case StatusCode::STATUS_OK:
return F("Success.");
case StatusCode::STATUS_ERROR:
return F("Error in communication.");
case StatusCode::STATUS_COLLISION:
return F("collision detected.");
case StatusCode::STATUS_TIMEOUT:
return F("Timeout in communication.");
case StatusCode::STATUS_NO_ROOM:
return F("A buffer is not big enough.");
case StatusCode::STATUS_INTERNAL_ERROR:
return F("Internal error in the code. Should not happen.");
case StatusCode::STATUS_INVALID:
return F("Invalid argument.");
case StatusCode::STATUS_CRC_WRONG:
return F("The CRC_A does not match.");
case StatusCode::STATUS_MIFARE_NACK:
return F("A MIFARE PICC responded with NAK.");
default:
return F("Unknown error");
}
} // End GetStatusCodeName()
void MFRC522Debug::PrintUID(Print &logPrint, const MFRC522Constants::Uid &uid) {
for(byte i = 0; i < uid.size; i++) {
logPrint.print(uid.uidByte[i] < 0x10 ? " 0" : " ");
logPrint.print(uid.uidByte[i], HEX);
}
}
void MFRC522Debug::PrintSelectedUID(MFRC522 &device, Print &logPrint) {
PrintUID(logPrint, device.uid);
}
/**
* Dumps debug info about the connected PCD to Serial.
* Shows all known firmware versions.
*/
void MFRC522Debug::PCD_DumpVersionToSerial(MFRC522 &device, Print &logPrint) {
// Get the MFRC522 firmware version.
PCD_Version version = device.PCD_GetVersion();
if(version != PCD_Version::Version_Unknown) {
logPrint.print(F("Firmware Version: 0x"));
logPrint.print(version, HEX);
}
// Human readable version.
switch(version) {
case 0xb2:
logPrint.println(F(" = FM17522_1"));
break;
case 0x88:
logPrint.println(F(" = FM17522"));
break;
case 0x89:
logPrint.println(F(" = FM17522E"));
break;
case 0x90:
logPrint.println(F(" = v0.0"));
break;
case 0x91:
logPrint.println(F(" = v1.0"));
break;
case 0x92:
logPrint.println(F(" = v2.0"));
break;
case 0x12:
logPrint.println(F(" = counterfeit chip"));
break;
default:
logPrint.println(F(" = (unknown)"));
}
// When 0x00 or 0xFF is returned, communication probably failed
if(version == PCD_Version::Version_Unknown) {
logPrint.println(F("WARNING: Communication failure, is the MFRC522 properly connected?"));
}
} // End PCD_DumpVersionToSerial()
/**
* Dumps debug info about the selected PICC to Serial.
* On success the PICC is halted after dumping the data.
* For MIFARE Classic the factory default key of 0xFFFFFFFFFFFF is tried.
*/
void MFRC522Debug::PICC_DumpToSerial(MFRC522 &device, Print &logPrint,
Uid *uid ///< Pointer to Uid struct returned from a successful PICC_Select().
) {
MIFARE_Key key;
// Dump UID, SAK and Type
PICC_DumpDetailsToSerial(device, logPrint, uid);
// Dump contents
PICC_Type piccType = device.PICC_GetType(uid->sak);
switch(piccType) {
case PICC_Type::PICC_TYPE_MIFARE_MINI:
case PICC_Type::PICC_TYPE_MIFARE_1K:
case PICC_Type::PICC_TYPE_MIFARE_4K:
// All keys are set to FFFFFFFFFFFFh at chip delivery from the factory.
for(byte i = 0; i < 6; i++) {
key.keyByte[i] = 0xFF;
}
PICC_DumpMifareClassicToSerial(device, logPrint, uid, piccType, &key);
break;
case PICC_Type::PICC_TYPE_MIFARE_UL:
PICC_DumpMifareUltralightToSerial(device, logPrint);
break;
case PICC_Type::PICC_TYPE_ISO_14443_4:
case PICC_Type::PICC_TYPE_MIFARE_DESFIRE:
case PICC_Type::PICC_TYPE_ISO_18092:
case PICC_Type::PICC_TYPE_MIFARE_PLUS:
case PICC_Type::PICC_TYPE_TNP3XXX:
logPrint.println(F("Dumping memory contents not implemented for that PICC type."));
break;
case PICC_Type::PICC_TYPE_UNKNOWN:
case PICC_Type::PICC_TYPE_NOT_COMPLETE:
default:
break; // No memory dump here
}
logPrint.println();
device.PICC_HaltA(); // Already done if it was a MIFARE Classic PICC.
} // End PICC_DumpToSerial()
/**
* Dumps card info (UID,SAK,Type) about the selected PICC to Serial.
*/
void MFRC522Debug::PICC_DumpDetailsToSerial(MFRC522 &device, Print &logPrint,
Uid *uid ///< Pointer to Uid struct returned from a successful PICC_Select().
) {
// UID
logPrint.print(F("Card UID:"));
for(byte i = 0; i < uid->size; i++) {
if(uid->uidByte[i] < 0x10)
logPrint.print(F(" 0"));
else
logPrint.print(F(" "));
logPrint.print(uid->uidByte[i], HEX);
}
logPrint.println();
// SAK
logPrint.print(F("Card SAK: "));
if(uid->sak < 0x10)
logPrint.print(F("0"));
logPrint.println(uid->sak, HEX);
// (suggested) PICC type
PICC_Type piccType = device.PICC_GetType(uid->sak);
logPrint.print(F("PICC type: "));
logPrint.println(PICC_GetTypeName(piccType));
} // End PICC_DumpDetailsToSerial()
/**
* Dumps memory contents of a MIFARE Classic PICC.
* On success the PICC is halted after dumping the data.
*/
void MFRC522Debug::PICC_DumpMifareClassicToSerial(MFRC522 &device, Print &logPrint,
Uid *uid, ///< Pointer to Uid struct returned from a successful PICC_Select().
PICC_Type piccType, ///< One of the PICC_Type enums.
MIFARE_Key *key ///< Key A used for all sectors.
) {
byte no_of_sectors = 0;
switch(piccType) {
case PICC_Type::PICC_TYPE_MIFARE_MINI:
// Has 5 sectors * 4 blocks/sector * 16 bytes/block = 320 bytes.
no_of_sectors = 5;
break;
case PICC_Type::PICC_TYPE_MIFARE_1K:
// Has 16 sectors * 4 blocks/sector * 16 bytes/block = 1024 bytes.
no_of_sectors = 16;
break;
case PICC_Type::PICC_TYPE_MIFARE_4K:
// Has (32 sectors * 4 blocks/sector + 8 sectors * 16 blocks/sector) * 16 bytes/block = 4096 bytes.
no_of_sectors = 40;
break;
default: // Should not happen. Ignore.
break;
}
// Dump sectors, highest address first.
if(no_of_sectors) {
logPrint.println(F("Sector Block 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 AccessBits"));
for(int8_t i = no_of_sectors-1; i >= 0; i--) {
PICC_DumpMifareClassicSectorToSerial(device, logPrint, uid, key, i);
}
}
device.PICC_HaltA(); // Halt the PICC before stopping the encrypted session.
device.PCD_StopCrypto1();
} // End PICC_DumpMifareClassicToSerial()
/**
* Dumps memory contents of a sector of a MIFARE Classic PICC.
* Uses PCD_Authenticate(), MIFARE_Read() and PCD_StopCrypto1.
* Always uses PICC_Command::PICC_CMD_MF_AUTH_KEY_A because only Key A can always read the sector trailer access bits.
*/
void MFRC522Debug::PICC_DumpMifareClassicSectorToSerial(MFRC522 &device, Print &logPrint,
Uid *uid, ///< Pointer to Uid struct returned from a successful PICC_Select().
MIFARE_Key *key, ///< Key A for the sector.
byte sector ///< The sector to dump, 0..39.
) {
MFRC522::StatusCode status;
byte firstBlock; // Address of lowest address to dump actually last block dumped)
byte no_of_blocks; // Number of blocks in sector
bool isSectorTrailer; // Set to true while handling the "last" (ie highest address) in the sector.
// The access bits are stored in a peculiar fashion.
// There are four groups:
// g[3] Access bits for the sector trailer, block 3 (for sectors 0-31) or block 15 (for sectors 32-39)
// g[2] Access bits for block 2 (for sectors 0-31) or blocks 10-14 (for sectors 32-39)
// g[1] Access bits for block 1 (for sectors 0-31) or blocks 5-9 (for sectors 32-39)
// g[0] Access bits for block 0 (for sectors 0-31) or blocks 0-4 (for sectors 32-39)
// Each group has access bits [C1 C2 C3]. In this code C1 is MSB and C3 is LSB.
// The four CX bits are stored together in a nible cx and an inverted nible cx_.
byte c1, c2, c3; // Nibbles
byte c1_, c2_, c3_; // Inverted nibbles
bool invertedError; // True if one of the inverted nibbles did not match
byte g[4]; // Access bits for each of the four groups.
byte group; // 0-3 - active group for access bits
bool firstInGroup; // True for the first block dumped in the group
// Determine position and size of sector.
if(sector < 32) { // Sectors 0..31 has 4 blocks each
no_of_blocks = 4;
firstBlock = sector*no_of_blocks;
} else if(sector < 40) { // Sectors 32-39 has 16 blocks each
no_of_blocks = 16;
firstBlock = 128+(sector-32)*no_of_blocks;
} else { // Illegal input, no MIFARE Classic PICC has more than 40 sectors.
return;
}
// Dump blocks, highest address first.
byte byteCount;
byte buffer[18];
byte blockAddr;
isSectorTrailer = true;
invertedError = false; // Avoid "unused variable" warning.
for(int8_t blockOffset = no_of_blocks-1; blockOffset >= 0; blockOffset--) {
blockAddr = firstBlock+blockOffset;
// Sector number - only on first line
if(isSectorTrailer) {
if(sector < 10)
logPrint.print(F(" ")); // Pad with spaces
else
logPrint.print(F(" ")); // Pad with spaces
logPrint.print(sector);
logPrint.print(F(" "));
} else {
logPrint.print(F(" "));
}
// Block number
if(blockAddr < 10)
logPrint.print(F(" ")); // Pad with spaces
else {
if(blockAddr < 100)
logPrint.print(F(" ")); // Pad with spaces
else
logPrint.print(F(" ")); // Pad with spaces
}
logPrint.print(blockAddr);
logPrint.print(F(" "));
// Establish encrypted communications before reading the first block
if(isSectorTrailer) {
status = device.PCD_Authenticate(PICC_Command::PICC_CMD_MF_AUTH_KEY_A, firstBlock, key, uid);
if(status != StatusCode::STATUS_OK) {
logPrint.print(F("PCD_Authenticate() failed: "));
logPrint.println(GetStatusCodeName(status));
return;
}
}
// Read block
byteCount = sizeof(buffer);
status = device.MIFARE_Read(blockAddr, buffer, &byteCount);
if(status != StatusCode::STATUS_OK) {
logPrint.print(F("MIFARE_Read() failed: "));
logPrint.println(GetStatusCodeName(status));
continue;
}
// Dump data
for(byte index = 0; index < 16; index++) {
if(buffer[index] < 0x10)
logPrint.print(F(" 0"));
else
logPrint.print(F(" "));
logPrint.print(buffer[index], HEX);
if((index%4) == 3) {
logPrint.print(F(" "));
}
}
// Parse sector trailer data
if(isSectorTrailer) {
c1 = buffer[7] >> 4;
c2 = buffer[8] & 0xF;
c3 = buffer[8] >> 4;
c1_ = buffer[6] & 0xF;
c2_ = buffer[6] >> 4;
c3_ = buffer[7] & 0xF;
invertedError = (c1 != (~c1_ & 0xF)) || (c2 != (~c2_ & 0xF)) || (c3 != (~c3_ & 0xF));
g[0] = ((c1 & 1) << 2) | ((c2 & 1) << 1) | ((c3 & 1) << 0);
g[1] = ((c1 & 2) << 1) | ((c2 & 2) << 0) | ((c3 & 2) >> 1);
g[2] = ((c1 & 4) << 0) | ((c2 & 4) >> 1) | ((c3 & 4) >> 2);
g[3] = ((c1 & 8) >> 1) | ((c2 & 8) >> 2) | ((c3 & 8) >> 3);
isSectorTrailer = false;
}
// Which access group is this block in?
if(no_of_blocks == 4) {
group = blockOffset;
firstInGroup = true;
} else {
group = blockOffset/5;
firstInGroup = (group == 3) || (group != (blockOffset+1)/5);
}
if(firstInGroup) {
// Print access bits
logPrint.print(F(" [ "));
logPrint.print((g[group] >> 2) & 1, DEC);
logPrint.print(F(" "));
logPrint.print((g[group] >> 1) & 1, DEC);
logPrint.print(F(" "));
logPrint.print((g[group] >> 0) & 1, DEC);
logPrint.print(F(" ] "));
if(invertedError) {
logPrint.print(F(" Inverted access bits did not match! "));
}
}
if(group != 3 && (g[group] == 1 || g[group] == 6)) { // Not a sector trailer, a value block
int32_t value = (int32_t(buffer[3]) << 24) | (int32_t(buffer[2]) << 16) | (int32_t(buffer[1]) << 8) | int32_t(buffer[0]);
logPrint.print(F(" Value=0x"));
logPrint.print(value, HEX);
logPrint.print(F(" Adr=0x"));
logPrint.print(buffer[12], HEX);
}
logPrint.println();
}
return;
} // End PICC_DumpMifareClassicSectorToSerial()
/**
* Dumps memory contents of a MIFARE Ultralight PICC.
*/
void MFRC522Debug::PICC_DumpMifareUltralightToSerial(MFRC522 &device, Print &logPrint) {
StatusCode status;
byte byteCount;
byte buffer[18];
byte i;
logPrint.println(F("Page 0 1 2 3"));
// Try the mpages of the original Ultralight. Ultralight C has more pages.
for(byte page = 0; page < 16; page += 4) { // Read returns data for 4 pages at a time.
// Read pages
byteCount = sizeof(buffer);
status = device.MIFARE_Read(page, buffer, &byteCount);
if(status != StatusCode::STATUS_OK) {
logPrint.print(F("MIFARE_Read() failed: "));
logPrint.println(GetStatusCodeName(status));
break;
}
// Dump data
for(byte offset = 0; offset < 4; offset++) {
i = page+offset;
if(i < 10)
logPrint.print(F(" ")); // Pad with spaces
else
logPrint.print(F(" ")); // Pad with spaces
logPrint.print(i);
logPrint.print(F(" "));
for(byte index = 0; index < 4; index++) {
i = 4*offset+index;
if(buffer[i] < 0x10)
logPrint.print(F(" 0"));
else
logPrint.print(F(" "));
logPrint.print(buffer[i], HEX);
}
logPrint.println();
}
}
} // End PICC_DumpMifareUltralightToSerial()