mirror of
https://github.com/RfidResearchGroup/proxmark3.git
synced 2025-02-13 10:43:01 +08:00
cleaned up some code
This commit is contained in:
roel@libnfc.org
parent
4ab4336a97
commit
254b70a4af
1 changed files with 86 additions and 185 deletions
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@ -1042,52 +1042,12 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd)
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response3a[0] = sak & 0xFB;
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ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
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uint8_t response5[] = { 0x00, 0x00, 0x00, 0x00 }; // Very random tag nonce
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uint8_t response6[] = { 0x03, 0x3B, 0x00, 0x00, 0x00 }; // dummy ATS (pseudo-ATR), answer to RATS
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ComputeCrc14443(CRC_14443_A, response6, 3, &response6[3], &response6[4]);
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/*
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// Check if the uid uses the (optional) second part
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if (uid_2nd) {
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// Configure the ATQA and SAK accordingly
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response1[0] |= 0x40;
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sak |= 0x04;
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}
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*/
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//static const uint8_t response2a[] = { 0x51, 0x48, 0x1d, 0x80, 0x84 }; // uid - cascade2 - 2nd half (4 bytes) of UID+ BCCheck
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// Prepare protocol messages
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// static const uint8_t cmd1[] = { 0x26 };
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// static const uint8_t response1[] = { 0x02, 0x00 }; // Says: I am Mifare 4k - original line - greg
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//
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// uint8_t response1[] = { 0x44, 0x03 }; // Says: I am a DESFire Tag, ph33r me
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// static const uint8_t response1[] = { 0x44, 0x00 }; // Says: I am a ULTRALITE Tag, 0wn me
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// UID response
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// static const uint8_t cmd2[] = { 0x93, 0x20 };
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//static const uint8_t response2[] = { 0x9a, 0xe5, 0xe4, 0x43, 0xd8 }; // original value - greg
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// my desfire
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// uint8_t response2[] = { 0x88, 0x04, 0x21, 0x3f, 0x4d }; // known uid - note cascade (0x88), 2nd byte (0x04) = NXP/Phillips
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// When reader selects us during cascade1 it will send cmd3
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//uint8_t response3[] = { 0x04, 0x00, 0x00 }; // SAK Select (cascade1) successful response (ULTRALITE)
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//uint8_t response3[] = { 0x24, 0x00, 0x00 }; // SAK Select (cascade1) successful response (DESFire)
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//ComputeCrc14443(CRC_14443_A, response3, 1, &response3[1], &response3[2]);
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// send cascade2 2nd half of UID
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//static const uint8_t response2a[] = { 0x51, 0x48, 0x1d, 0x80, 0x84 }; // uid - cascade2 - 2nd half (4 bytes) of UID+ BCCheck
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// NOTE : THE CRC on the above may be wrong as I have obfuscated the actual UID
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// When reader selects us during cascade2 it will send cmd3a
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//uint8_t response3a[] = { 0x00, 0x00, 0x00 }; // SAK Select (cascade2) successful response (ULTRALITE)
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//uint8_t response3a[] = { 0x20, 0x00, 0x00 }; // SAK Select (cascade2) successful response (DESFire)
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//ComputeCrc14443(CRC_14443_A, response3a, 1, &response3a[1], &response3a[2]);
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static const uint8_t response5[] = { 0x00, 0x00, 0x00, 0x00 }; // Very random tag nonce
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uint8_t *resp;
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int respLen;
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uint8_t *resp;
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int respLen;
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// Longest possible response will be 16 bytes + 2 CRC = 18 bytes
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// This will need
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@ -1102,42 +1062,41 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd)
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// 166 bytes, since every bit that needs to be send costs us a byte
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//
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// Respond with card type
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uint8_t *resp1 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET);
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int resp1Len;
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// Respond with card type
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uint8_t *resp1 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET);
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int resp1Len;
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// Anticollision cascade1 - respond with uid
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uint8_t *resp2 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 166);
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int resp2Len;
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// Anticollision cascade1 - respond with uid
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uint8_t *resp2 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + 166);
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int resp2Len;
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// Anticollision cascade2 - respond with 2nd half of uid if asked
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// we're only going to be asked if we set the 1st byte of the UID (during cascade1) to 0x88
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uint8_t *resp2a = (((uint8_t *)BigBuf) + 1140);
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int resp2aLen;
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// Anticollision cascade2 - respond with 2nd half of uid if asked
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// we're only going to be asked if we set the 1st byte of the UID (during cascade1) to 0x88
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uint8_t *resp2a = (((uint8_t *)BigBuf) + 1140);
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int resp2aLen;
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// Acknowledge select - cascade 1
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uint8_t *resp3 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*2));
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int resp3Len;
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// Acknowledge select - cascade 1
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uint8_t *resp3 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*2));
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int resp3Len;
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// Acknowledge select - cascade 2
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uint8_t *resp3a = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*3));
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int resp3aLen;
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// Acknowledge select - cascade 2
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uint8_t *resp3a = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*3));
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int resp3aLen;
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// Response to a read request - not implemented atm
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uint8_t *resp4 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*4));
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int resp4Len;
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// Response to a read request - not implemented atm
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uint8_t *resp4 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*4));
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int resp4Len;
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// Authenticate response - nonce
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uint8_t *resp5 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*5));
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int resp5Len;
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// Authenticate response - nonce
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uint8_t *resp5 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*5));
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int resp5Len;
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uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
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// uint8_t *receivedCmd = (uint8_t *)BigBuf;
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int len;
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// Authenticate response - nonce
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uint8_t *resp6 = (((uint8_t *)BigBuf) + FREE_BUFFER_OFFSET + (166*6));
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int resp6Len;
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//int i;
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//int u;
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//uint8_t b;
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uint8_t *receivedCmd = (((uint8_t *)BigBuf) + RECV_CMD_OFFSET);
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int len;
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// To control where we are in the protocol
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int order = 0;
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@ -1152,8 +1111,6 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd)
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int respsize = 0;
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uint8_t nack = 0x04;
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//int fdt_indicator;
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memset(receivedCmd, 0x44, RECV_CMD_SIZE);
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// Prepare the responses of the anticollision phase
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@ -1161,23 +1118,23 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd)
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// Answer to request
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CodeIso14443aAsTag(response1, sizeof(response1));
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memcpy(resp1, ToSend, ToSendMax); resp1Len = ToSendMax;
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memcpy(resp1, ToSend, ToSendMax); resp1Len = ToSendMax;
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// Send our UID (cascade 1)
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CodeIso14443aAsTag(response2, sizeof(response2));
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memcpy(resp2, ToSend, ToSendMax); resp2Len = ToSendMax;
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memcpy(resp2, ToSend, ToSendMax); resp2Len = ToSendMax;
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// Answer to select (cascade1)
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CodeIso14443aAsTag(response3, sizeof(response3));
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memcpy(resp3, ToSend, ToSendMax); resp3Len = ToSendMax;
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memcpy(resp3, ToSend, ToSendMax); resp3Len = ToSendMax;
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// Send the cascade 2 2nd part of the uid
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CodeIso14443aAsTag(response2a, sizeof(response2a));
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memcpy(resp2a, ToSend, ToSendMax); resp2aLen = ToSendMax;
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memcpy(resp2a, ToSend, ToSendMax); resp2aLen = ToSendMax;
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// Answer to select (cascade 2)
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CodeIso14443aAsTag(response3a, sizeof(response3a));
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memcpy(resp3a, ToSend, ToSendMax); resp3aLen = ToSendMax;
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memcpy(resp3a, ToSend, ToSendMax); resp3aLen = ToSendMax;
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// Strange answer is an example of rare message size (3 bits)
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CodeStrangeAnswerAsTag();
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@ -1185,101 +1142,74 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd)
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// Authentication answer (random nonce)
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CodeIso14443aAsTag(response5, sizeof(response5));
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memcpy(resp5, ToSend, ToSendMax); resp5Len = ToSendMax;
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memcpy(resp5, ToSend, ToSendMax); resp5Len = ToSendMax;
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// We need to listen to the high-frequency, peak-detected path.
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SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
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FpgaSetupSsc();
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// dummy ATS (pseudo-ATR), answer to RATS
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CodeIso14443aAsTag(response6, sizeof(response6));
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memcpy(resp6, ToSend, ToSendMax); resp6Len = ToSendMax;
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cmdsRecvd = 0;
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// We need to listen to the high-frequency, peak-detected path.
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SetAdcMuxFor(GPIO_MUXSEL_HIPKD);
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FpgaSetupSsc();
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LED_A_ON();
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cmdsRecvd = 0;
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LED_A_ON();
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for(;;) {
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if(!GetIso14443aCommandFromReader(receivedCmd, &len, RECV_CMD_SIZE)) {
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DbpString("button press");
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break;
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}
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// doob - added loads of debug strings so we can see what the reader is saying to us during the sim as hi14alist is not populated
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// Okay, look at the command now.
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lastorder = order;
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//i = 1; // first byte transmitted
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if(receivedCmd[0] == 0x26) {
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// Received a REQUEST
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DbpString("button press");
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break;
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}
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// doob - added loads of debug strings so we can see what the reader is saying to us during the sim as hi14alist is not populated
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// Okay, look at the command now.
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lastorder = order;
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if(receivedCmd[0] == 0x26) { // Received a REQUEST
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resp = resp1; respLen = resp1Len; order = 1;
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respdata = response1;
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respsize = sizeof(response1);
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//DbpString("Hello request from reader:");
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} else if(receivedCmd[0] == 0x52) {
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// Received a WAKEUP
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} else if(receivedCmd[0] == 0x52) { // Received a WAKEUP
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resp = resp1; respLen = resp1Len; order = 6;
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// //DbpString("Wakeup request from reader:");
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respdata = response1;
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respsize = sizeof(response1);
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} else if(receivedCmd[1] == 0x20 && receivedCmd[0] == 0x93) { // greg - cascade 1 anti-collision
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// Received request for UID (cascade 1)
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} else if(receivedCmd[1] == 0x20 && receivedCmd[0] == 0x93) { // Received request for UID (cascade 1)
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resp = resp2; respLen = resp2Len; order = 2;
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// DbpString("UID (cascade 1) request from reader:");
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// DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]);
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respdata = response2;
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respsize = sizeof(response2);
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} else if(receivedCmd[1] == 0x20 && receivedCmd[0] ==0x95) { // greg - cascade 2 anti-collision
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// Received request for UID (cascade 2)
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} else if(receivedCmd[1] == 0x20 && receivedCmd[0] == 0x95) { // Received request for UID (cascade 2)
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resp = resp2a; respLen = resp2aLen; order = 20;
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// DbpString("UID (cascade 2) request from reader:");
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// DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]);
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respdata = response2a;
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respsize = sizeof(response2a);
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} else if(receivedCmd[1] == 0x70 && receivedCmd[0] ==0x93) { // greg - cascade 1 select
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// Received a SELECT
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} else if(receivedCmd[1] == 0x70 && receivedCmd[0] == 0x93) { // Received a SELECT (cascade 1)
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resp = resp3; respLen = resp3Len; order = 3;
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// DbpString("Select (cascade 1) request from reader:");
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// DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]);
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respdata = response3;
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respsize = sizeof(response3);
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} else if(receivedCmd[1] == 0x70 && receivedCmd[0] ==0x95) { // greg - cascade 2 select
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// Received a SELECT
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} else if(receivedCmd[1] == 0x70 && receivedCmd[0] == 0x95) { // Received a SELECT (cascade 2)
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resp = resp3a; respLen = resp3aLen; order = 30;
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// DbpString("Select (cascade 2) request from reader:");
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// DbpIntegers(receivedCmd[0], receivedCmd[1], receivedCmd[2]);
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respdata = response3a;
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respsize = sizeof(response3a);
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} else if(receivedCmd[0] == 0x30) {
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// Received a READ
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} else if(receivedCmd[0] == 0x30) { // Received a (plain) READ
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resp = resp4; respLen = resp4Len; order = 4; // Do nothing
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Dbprintf("Read request from reader: %x %x %x",
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receivedCmd[0], receivedCmd[1], receivedCmd[2]);
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Dbprintf("Read request from reader: %x %x",receivedCmd[0],receivedCmd[1]);
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respdata = &nack;
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respsize = sizeof(nack); // 4-bit answer
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} else if(receivedCmd[0] == 0x50) {
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// Received a HALT
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resp = resp1; respLen = 0; order = 5; // Do nothing
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} else if(receivedCmd[0] == 0x50) { // Received a HALT
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DbpString("Reader requested we HALT!:");
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// Do not respond
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resp = resp1; respLen = 0; order = 0;
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respdata = NULL;
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respsize = 0;
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} else if(receivedCmd[0] == 0x60) {
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// Received an authentication request
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} else if(receivedCmd[0] == 0x60 || receivedCmd[0] == 0x61) { // Received an authentication request
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resp = resp5; respLen = resp5Len; order = 7;
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Dbprintf("Authenticate request from reader: %x %x %x",
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receivedCmd[0], receivedCmd[1], receivedCmd[2]);
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respdata = NULL;
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respsize = 0;
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} else if(receivedCmd[0] == 0xE0) {
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// Received a RATS request
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resp = resp1; respLen = 0;order = 70;
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Dbprintf("RATS request from reader: %x %x %x",
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receivedCmd[0], receivedCmd[1], receivedCmd[2]);
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respdata = NULL;
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respsize = 0;
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respdata = response5;
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respsize = sizeof(response5);
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} else if(receivedCmd[0] == 0xE0) { // Received a RATS request
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resp = resp6; respLen = resp6Len; order = 70;
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respdata = response6;
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respsize = sizeof(response6);
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} else {
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// Never seen this command before
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Dbprintf("Unknown command received from reader (len=%d): %x %x %x %x %x %x %x %x %x",
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Dbprintf("Received unknown command (len=%d): %02x %02x %02x %02x %02x %02x %02x %02x %02x",
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len,
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receivedCmd[0], receivedCmd[1], receivedCmd[2],
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receivedCmd[3], receivedCmd[4], receivedCmd[5],
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@ -1302,23 +1232,27 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd)
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//i = 0;
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}
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if(cmdsRecvd > 999) {
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DbpString("1000 commands later...");
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break;
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}
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else {
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break;
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} else {
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cmdsRecvd++;
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}
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if(respLen > 0) {
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//----------------------------
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//u = 0;
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//b = 0x00;
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//fdt_indicator = FALSE;
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EmSendCmd14443aRaw(resp, respLen, receivedCmd[0] == 0x52);
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}
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// After sending the response, print out some debug data.
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if (receivedCmd[0] == 0x60 || receivedCmd[0] == 0x61) {
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Dbprintf("Authenticate request from reader: %02x %02x",receivedCmd[0],receivedCmd[1]);
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} else if (receivedCmd[0] == 0xE0) {
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Dbprintf("RATS request from reader: %02x %02x",receivedCmd[0],receivedCmd[1]);
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} else if (receivedCmd[0] == 0x30) {
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Dbprintf("READ request from reader: %02x %02x",receivedCmd[0],receivedCmd[1]);
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}
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if (tracing) {
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LogTrace(receivedCmd,len, 0, Uart.parityBits, TRUE);
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if (respdata != NULL) {
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@ -1331,40 +1265,7 @@ void SimulateIso14443aTag(int tagType, int uid_1st, int uid_2nd)
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}
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memset(receivedCmd, 0x44, RECV_CMD_SIZE);
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/* // Modulate Manchester
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FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_ISO14443A | FPGA_HF_ISO14443A_TAGSIM_MOD);
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AT91C_BASE_SSC->SSC_THR = 0x00;
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FpgaSetupSsc();
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// ### Transmit the response ###
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u = 0;
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b = 0x00;
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fdt_indicator = FALSE;
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for(;;) {
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if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
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volatile uint8_t b = (uint8_t)AT91C_BASE_SSC->SSC_RHR;
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(void)b;
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}
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if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_TXRDY)) {
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if(i > respLen) {
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b = 0x00;
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u++;
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} else {
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b = resp[i];
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i++;
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}
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AT91C_BASE_SSC->SSC_THR = b;
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if(u > 4) {
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break;
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}
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}
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if(BUTTON_PRESS()) {
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break;
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}
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}
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*/
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}
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}
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Dbprintf("%x %x %x", happened, happened2, cmdsRecvd);
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LED_A_OFF();
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Reference in a new issue