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ADD: 'LF NORALSY' clone/sim/read commands. Partly done. some crc works, but whole format in not mapped yet.
ADD: 'LF SEARCH' added noralsy detection
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iceman1001
parent
207fc33a42
commit
22eece1e2d
5 changed files with 275 additions and 2 deletions
228
client/cmdlfnoralsy.c
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228
client/cmdlfnoralsy.c
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//-----------------------------------------------------------------------------
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//
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// This code is licensed to you under the terms of the GNU GPL, version 2 or,
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// at your option, any later version. See the LICENSE.txt file for the text of
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// the license.
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//-----------------------------------------------------------------------------
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// Low frequency Presco tag commands
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//-----------------------------------------------------------------------------
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#include "cmdlfnoralsy.h"
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static int CmdHelp(const char *Cmd);
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int usage_lf_noralsy_clone(void){
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PrintAndLog("clone a Noralsy tag to a T55x7 tag.");
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PrintAndLog("Usage: lf noralsy clone [h] <card ID> <Q5>");
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PrintAndLog("Options:");
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PrintAndLog(" h : This help");
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PrintAndLog(" <card ID> : Noralsy card ID");
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PrintAndLog(" <Q5> : specify write to Q5 (t5555 instead of t55x7)");
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PrintAndLog("");
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PrintAndLog("Sample: lf noralsy clone 112233");
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return 0;
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}
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int usage_lf_noralsy_sim(void) {
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PrintAndLog("Enables simulation of Noralsy card with specified card number.");
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PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
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PrintAndLog("");
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PrintAndLog("Usage: lf noralsy sim [h] <card ID>");
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PrintAndLog("Options:");
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PrintAndLog(" h : This help");
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PrintAndLog(" <card ID> : Noralsy card ID");
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PrintAndLog("");
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PrintAndLog("Sample: lf noralsy sim 112233");
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return 0;
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}
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static uint8_t noralsy_chksum( uint8_t* bits, uint8_t len) {
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uint8_t sum = 0;
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for (uint8_t i = 0; i < len; i += 4)
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sum ^= bytebits_to_byte(bits+i, 4);
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return sum & 0x0F ;
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}
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int getnoralsyBits(uint32_t id, uint8_t *bits) {
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//preamp
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num_to_bytebits(0xBB0214FF, 32, bits); // --> Have seen 0xBB0214FF / 0xBB0314FF UNKNOWN
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//convert ID into BCD-format
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id = DEC2BCD(id);
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uint16_t sub1 = (id & 0xFFF0000) >> 16;
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uint8_t sub2 = (id & 0x000FF00) >> 8;
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uint8_t sub3 = (id & 0x00000FF);
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num_to_bytebits(sub1, 12, bits+32);
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num_to_bytebits(0x980, 12, bits+44); // --> UNKNOWN part
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num_to_bytebits(sub2, 8, bits+56);
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num_to_bytebits(sub3, 8, bits+64);
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//chksum byte
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uint8_t chksum = noralsy_chksum(bits+32, 40);
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num_to_bytebits(chksum, 4, bits+72);
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chksum = noralsy_chksum(bits, 76);
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num_to_bytebits(chksum, 4, bits+76);
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return 1;
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}
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//see ASKDemod for what args are accepted
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int CmdNoralsyDemod(const char *Cmd) {
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//ASK / Manchester
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bool st = true;
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if (!ASKDemod_ext("32 0 0", FALSE, FALSE, 1, &st)) {
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if (g_debugMode) PrintAndLog("DEBUG: Error - Noralsy: ASK/Manchester Demod failed");
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return 0;
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}
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size_t size = DemodBufferLen;
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int ans = NoralsyDemod_AM(DemodBuffer, &size);
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if (ans < 0){
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if (g_debugMode){
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if (ans == -1)
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PrintAndLog("DEBUG: Error - Noralsy: too few bits found");
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else if (ans == -2)
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PrintAndLog("DEBUG: Error - Noralsy: preamble not found");
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else if (ans == -3)
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PrintAndLog("DEBUG: Error - Noralsy: Size not correct: %d", size);
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else
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PrintAndLog("DEBUG: Error - Noralsy: ans: %d", ans);
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}
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return 0;
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}
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setDemodBuf(DemodBuffer, 96, ans);
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//got a good demod
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uint32_t raw1 = bytebits_to_byte(DemodBuffer, 32);
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uint32_t raw2 = bytebits_to_byte(DemodBuffer+32, 32);
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uint32_t raw3 = bytebits_to_byte(DemodBuffer+64, 32);
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uint32_t cardid = ((raw2 & 0xFFF00000) >> 20) << 16;
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cardid |= (raw2 & 0xFF) << 8;
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cardid |= ((raw3 & 0xFF000000) >> 24);
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cardid = BCD2DEC(cardid);
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// calc checksums
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uint8_t calc1 = noralsy_chksum(DemodBuffer+32, 40);
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uint8_t calc2 = noralsy_chksum(DemodBuffer, 76);
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uint8_t chk1 = 0, chk2 = 0;
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chk1 = bytebits_to_byte(DemodBuffer+72, 4);
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chk2 = bytebits_to_byte(DemodBuffer+76, 4);
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// test checksums
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if ( chk1 != calc1 ) printf("checksum 1 failed %x - %x\n", chk1, calc1);
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if ( chk2 != calc2 ) printf("checksum 2 failed %x - %x\n", chk2, calc2);
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PrintAndLog("Noralsy Tag Found: Card ID %u, Raw: %08X%08X%08X", cardid, raw1 ,raw2, raw3);
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return 1;
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}
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int CmdNoralsyRead(const char *Cmd) {
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CmdLFRead("s");
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getSamples("20000",TRUE);
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return CmdNoralsyDemod(Cmd);
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}
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int CmdNoralsyClone(const char *Cmd) {
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uint32_t id = 0;
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uint32_t blocks[4] = {T55x7_MODULATION_MANCHESTER | T55x7_BITRATE_RF_32 | T55x7_ST_TERMINATOR |3<<T55x7_MAXBLOCK_SHIFT, 0, 0};
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uint8_t bits[96];
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uint8_t *bs = bits;
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memset(bs, 0, sizeof(bits));
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char cmdp = param_getchar(Cmd, 0);
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if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_noralsy_clone();
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id = param_get32ex(Cmd, 0, 0, 10);
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//Q5
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if (param_getchar(Cmd, 1) == 'Q' || param_getchar(Cmd, 1) == 'q') {
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//t5555 (Q5) BITRATE = (RF-2)/2 (iceman)
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blocks[0] = T5555_MODULATION_MANCHESTER | 32<<T5555_BITRATE_SHIFT | T5555_ST_TERMINATOR | 3<<T5555_MAXBLOCK_SHIFT;
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}
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if ( !getnoralsyBits(id, bs)) {
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PrintAndLog("Error with tag bitstream generation.");
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return 1;
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}
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//
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blocks[1] = bytebits_to_byte(bs,32);
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blocks[2] = bytebits_to_byte(bs+32,32);
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blocks[3] = bytebits_to_byte(bs+64,32);
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PrintAndLog("Preparing to clone Noralsy to T55x7 with CardId: %u", id);
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PrintAndLog("Blk | Data ");
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PrintAndLog("----+------------");
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PrintAndLog(" 00 | 0x%08x", blocks[0]);
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PrintAndLog(" 01 | 0x%08x", blocks[1]);
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PrintAndLog(" 02 | 0x%08x", blocks[2]);
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PrintAndLog(" 03 | 0x%08x", blocks[3]);
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UsbCommand resp;
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UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {0,0,0}};
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for (int i = 3; i >= 0; --i) {
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c.arg[0] = blocks[i];
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c.arg[1] = i;
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clearCommandBuffer();
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SendCommand(&c);
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if (!WaitForResponseTimeout(CMD_ACK, &resp, 1000)){
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PrintAndLog("Error occurred, device did not respond during write operation.");
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return -1;
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}
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}
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return 0;
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}
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int CmdNoralsySim(const char *Cmd) {
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uint8_t bits[96];
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uint8_t *bs = bits;
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memset(bs, 0, sizeof(bits));
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uint32_t id = 0;
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char cmdp = param_getchar(Cmd, 0);
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if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_noralsy_sim();
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id = param_get32ex(Cmd, 0, 0, 10);
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uint8_t clk = 32, encoding = 1, separator = 1, invert = 0;
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uint16_t arg1, arg2;
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size_t size = 96;
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arg1 = clk << 8 | encoding;
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arg2 = invert << 8 | separator;
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if ( !getnoralsyBits(id, bs)) {
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PrintAndLog("Error with tag bitstream generation.");
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return 1;
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}
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PrintAndLog("Simulating Noralsy - CardId: %u", id);
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UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
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memcpy(c.d.asBytes, bs, size);
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clearCommandBuffer();
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SendCommand(&c);
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return 0;
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}
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static command_t CommandTable[] = {
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{"help", CmdHelp, 1, "This help"},
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{"read", CmdNoralsyRead, 0, "Attempt to read and extract tag data"},
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{"clone", CmdNoralsyClone,0, "clone Noralsy tag"},
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{"sim", CmdNoralsySim, 0, "simulate Noralsy tag"},
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{NULL, NULL, 0, NULL}
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};
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int CmdLFNoralsy(const char *Cmd) {
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clearCommandBuffer();
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CmdsParse(CommandTable, Cmd);
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return 0;
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}
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int CmdHelp(const char *Cmd) {
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CmdsHelp(CommandTable);
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return 0;
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}
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