+//-----------------------------------------------------------------------------
+//
+// This code is licensed to you under the terms of the GNU GPL, version 2 or,
+// at your option, any later version. See the LICENSE.txt file for the text of
+// the license.
+//-----------------------------------------------------------------------------
+// Low frequency Viking tag commands
+//-----------------------------------------------------------------------------
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
int usage_lf_viking_clone(void){
PrintAndLog("clone a Viking AM tag to a T55x7 tag.");
- PrintAndLog("Usage: lf viking clone <Card ID 16 bytes of hex number>");
+ PrintAndLog("Usage: lf viking clone <Card ID - 8 hex digits> <Q5>");
+ PrintAndLog("Options :");
+ PrintAndLog(" <Card Number> : 8 digit hex viking card number");
+ PrintAndLog(" <Q5> : specify write to Q5 (t5555 instead of t55x7)");
+ PrintAndLog("");
+ PrintAndLog("Sample : lf viking clone 1A337 Q5");
return 0;
}
+int usage_lf_viking_sim(void) {
+ PrintAndLog("Enables simulation of viking card with specified card number.");
+ PrintAndLog("Simulation runs until the button is pressed or another USB command is issued.");
+ PrintAndLog("Per viking format, the card number is 8 digit hex number. Larger values are truncated.");
+ PrintAndLog("");
+ PrintAndLog("Usage: lf viking sim <Card-Number>");
+ PrintAndLog("Options :");
+ PrintAndLog(" <Card Number> : 8 digit hex viking card number");
+ PrintAndLog("");
+ PrintAndLog("Sample : lf viking sim 1A337");
+ return 0;
+}
+
+// calc checksum
+uint64_t getVikingBits(uint32_t id) {
+ uint8_t checksum = ((id>>24) & 0xFF) ^ ((id>>16) & 0xFF) ^ ((id>>8) & 0xFF) ^ (id & 0xFF) ^ 0xF2 ^ 0xA8;
+ uint64_t ret = (uint64_t)0xF2 << 56;
+ ret |= (uint64_t)id << 8;
+ ret |= checksum;
+ return ret;
+}
+
//by marshmellow
//see ASKDemod for what args are accepted
-int CmdVikingDemod(const char *Cmd)
-{
- //CmdLFRead("s");
- //getSamples("30000",false);
-
- if (!ASKDemod(Cmd, false, false, 1)) {
- if (g_debugMode) PrintAndLog("ASKDemod failed");
- return 0;
- }
- size_t size = DemodBufferLen;
-
- int ans = VikingDemod_AM(DemodBuffer, &size);
- if (ans < 0) {
- if (g_debugMode) PrintAndLog("Error Viking_Demod %d", ans);
- return 0;
- }
- //got a good demod
- uint32_t raw1 = bytebits_to_byte(DemodBuffer+ans, 32);
- uint32_t raw2 = bytebits_to_byte(DemodBuffer+ans+32, 32);
- uint32_t cardid = bytebits_to_byte(DemodBuffer+ans+24, 32);
- uint8_t checksum = bytebits_to_byte(DemodBuffer+ans+32+24, 8);
- PrintAndLog("Viking Tag Found: Card ID %08X, Checksum: %02X", cardid, checksum);
- PrintAndLog("Raw: %08X%08X", raw1,raw2);
- setDemodBuf(DemodBuffer+ans, 64, 0);
- return 1;
+int CmdVikingRead(const char *Cmd) {
+ // read lf silently
+ CmdLFRead("s");
+ // get samples silently
+ getSamples("20000", TRUE);
+ // demod and output viking ID
+ return CmdVikingDemod(Cmd);
}
-int CmdVikingClone(const char *Cmd)
-{
- uint32_t b1,b2;
- // get the tag number 64 bits (8 bytes) in hex
- uint8_t id[8];
-
+int CmdVikingClone(const char *Cmd) {
+ uint32_t id = 0;
+ uint64_t rawID = 0;
+ bool Q5 = false;
char cmdp = param_getchar(Cmd, 0);
- if (strlen(Cmd) < 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_viking_clone();
+ if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_viking_clone();
+
+ id = param_get32ex(Cmd, 0, 0, 16);
+ if (id == 0) return usage_lf_viking_clone();
- if (param_gethex(Cmd, 0, id, 16) == 1)
- return usage_lf_viking_clone();
+ cmdp = param_getchar(Cmd, 1);
+ if ( cmdp == 'Q' || cmdp == 'q')
+ Q5 = true;
+
+ rawID = getVikingBits(id);
- b1 = bytes_to_num(id, sizeof(uint32_t));
- b2 = bytes_to_num(id + sizeof(uint32_t), sizeof(uint32_t));
- UsbCommand c = {CMD_VIKING_CLONE_TAG,{b1,b2}};
+ PrintAndLog("Cloning - ID: %08X, Raw: %08X%08X",id,(uint32_t)(rawID >> 32),(uint32_t) (rawID & 0xFFFFFFFF));
+ UsbCommand c = {CMD_VIKING_CLONE_TAG,{rawID >> 32, rawID & 0xFFFFFFFF, Q5}};
clearCommandBuffer();
SendCommand(&c);
- //check for ACK?
+ //check for ACK
+ WaitForResponse(CMD_ACK,NULL);
return 0;
}
-static command_t CommandTable[] =
-{
+int CmdVikingSim(const char *Cmd) {
+ uint32_t id = 0;
+ uint64_t rawID = 0;
+ uint8_t clk = 32, encoding = 1, separator = 0, invert = 0;
+
+ char cmdp = param_getchar(Cmd, 0);
+ if (strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_viking_sim();
+
+ id = param_get32ex(Cmd, 0, 0, 16);
+ if (id == 0) return usage_lf_viking_sim();
+
+ rawID = getVikingBits(id);
+
+ uint16_t arg1, arg2;
+ size_t size = 64;
+ arg1 = clk << 8 | encoding;
+ arg2 = invert << 8 | separator;
+
+ PrintAndLog("Simulating - ID: %08X, Raw: %08X%08X",id,(uint32_t)(rawID >> 32),(uint32_t) (rawID & 0xFFFFFFFF));
+
+ UsbCommand c = {CMD_ASK_SIM_TAG, {arg1, arg2, size}};
+ num_to_bytebits(rawID, size, c.d.asBytes);
+ clearCommandBuffer();
+ SendCommand(&c);
+ return 0;
+}
+
+static command_t CommandTable[] = {
{"help", CmdHelp, 1, "This help"},
- {"demod", CmdVikingDemod, 1, "Extract tag data"},
- {"clone", CmdVikingClone, 1, "<16 digits card data> clone viking tag"},
+ {"read", CmdVikingRead, 0, "Attempt to read and Extract tag data"},
+ {"clone", CmdVikingClone, 0, "<8 digit ID number> clone viking tag"},
+ {"sim", CmdVikingSim, 0, "<8 digit ID number> simulate viking tag"},
{NULL, NULL, 0, NULL}
};
-int CmdLFViking(const char *Cmd)
-{
+int CmdLFViking(const char *Cmd) {
+ clearCommandBuffer();
CmdsParse(CommandTable, Cmd);
return 0;
}
-int CmdHelp(const char *Cmd)
-{
+int CmdHelp(const char *Cmd) {
CmdsHelp(CommandTable);
return 0;
}
projects / proxmark3-svn / blobdiff