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https://github.com/RfidResearchGroup/proxmark3.git
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Reorder client src directories
This commit is contained in:
Bjoern Kerler
parent
94192d0976
commit
81bc0bc2b9
387 changed files with 73 additions and 106 deletions
401
client/src/cmdlfkeri.c
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401
client/src/cmdlfkeri.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 KERI tag commands
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// PSK1, RF/128, RF/2, 64 bits long
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//-----------------------------------------------------------------------------
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#include "cmdlfkeri.h"
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#include <string.h>
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#include <inttypes.h>
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#include <ctype.h>
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#include <stdlib.h>
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#include "commonutil.h" // ARRAYLEN
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#include "cmdparser.h" // command_t
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#include "comms.h"
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#include "ui.h"
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#include "cmddata.h"
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#include "cmdlf.h"
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#include "protocols.h" // for T55xx config register definitions
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#include "lfdemod.h" // preamble test
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#include "cmdlft55xx.h" // verifywrite
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static int CmdHelp(const char *Cmd);
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static int usage_lf_keri_clone(void) {
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PrintAndLogEx(NORMAL, "clone a KERI tag to a T55x7 tag.");
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PrintAndLogEx(NORMAL, "Usage: lf keri clone [h] <id> <Q5>");
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PrintAndLogEx(NORMAL, "Usage extended: lf keri clone [h] t <m|i> [f <fc>] c <cardid> [Q5]");
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PrintAndLogEx(NORMAL, "Options:");
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PrintAndLogEx(NORMAL, " h : This help");
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PrintAndLogEx(NORMAL, " <id> : Keri Internal ID");
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PrintAndLogEx(NORMAL, " <Q5> : specify write to Q5 (t5555 instead of t55x7)");
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// New format
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PrintAndLogEx(NORMAL, " <t> [m|i] : Type. m - MS, i - Internal ID");
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PrintAndLogEx(NORMAL, " <f> <fc> : Facility Code");
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PrintAndLogEx(NORMAL, " <c> <cn> : Card Number");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, "Examples:");
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PrintAndLogEx(NORMAL, " lf keri clone 112233");
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PrintAndLogEx(NORMAL, " lf keri clone type ms fc 6 cn 12345");
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PrintAndLogEx(NORMAL, " lf keri clone t m f 6 c 12345");
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return PM3_SUCCESS;
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}
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static int usage_lf_keri_sim(void) {
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PrintAndLogEx(NORMAL, "Enables simulation of KERI card with specified card number.");
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PrintAndLogEx(NORMAL, "Simulation runs until the button is pressed or another USB command is issued.");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, "Usage: lf keri sim [h] <id>");
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PrintAndLogEx(NORMAL, "Options:");
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PrintAndLogEx(NORMAL, " h : This help");
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PrintAndLogEx(NORMAL, " <id> : Keri Internal ID");
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PrintAndLogEx(NORMAL, "");
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PrintAndLogEx(NORMAL, "Examples:");
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PrintAndLogEx(NORMAL, " lf keri sim 112233");
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return PM3_SUCCESS;
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}
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typedef enum {Scramble = 0, Descramble = 1} KeriMSScramble_t;
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static int CmdKeriMSScramble(KeriMSScramble_t Action, uint32_t *FC, uint32_t *ID, uint32_t *CardID) {
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// 255 = Not used/Unknown other values are the bit offset in the ID/FC values
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uint8_t CardToID [] = { 255, 255, 255, 255, 13, 12, 20, 5, 16, 6, 21, 17, 8, 255, 0, 7,
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10, 15, 255, 11, 4, 1, 255, 18, 255, 19, 2, 14, 3, 9, 255, 255
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};
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uint8_t CardToFC [] = { 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 0, 255, 255,
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255, 255, 2, 255, 255, 255, 3, 255, 4, 255, 255, 255, 255, 255, 1, 255
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};
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uint8_t CardIdx; // 0 - 31
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bool BitState;
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if (Action == Descramble) {
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*FC = 0;
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*ID = 0;
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for (CardIdx = 0; CardIdx < 32; CardIdx++) {
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// Get Bit State
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BitState = (*CardID >> CardIdx) & 1;
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// Card ID
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if (CardToID[CardIdx] < 32) {
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*ID = *ID | (BitState << CardToID[CardIdx]);
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}
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// Card FC
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if (CardToFC[CardIdx] < 32) {
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*FC = *FC | (BitState << CardToFC[CardIdx]);
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}
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}
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}
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if (Action == Scramble) {
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*CardID = 0; // set to 0
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for (CardIdx = 0; CardIdx < 32; CardIdx++) {
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// Card ID
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if (CardToID[CardIdx] < 32) {
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if ((*ID & (1 << CardToID[CardIdx])) > 0)
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*CardID |= (1 << CardIdx);
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}
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// Card FC
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if (CardToFC[CardIdx] < 32) {
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if ((*FC & (1 << CardToFC[CardIdx])) > 0)
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*CardID |= (1 << CardIdx);
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}
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}
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// Fixed bits and parity/check bits
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/*
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Add Parity and Fixed bits
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Bit 3 - Note Used/Fixed 1 - TBC
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Bit 31 - 1 Fixed Not in check/parity
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Bit 0,1 - 2 Bit Parity
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*/
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*CardID |= (1 << 3);
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// Check/Parity Bits
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int Parity = 1;
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for (CardIdx = 4; CardIdx <= 31; CardIdx += 2) {
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Parity = Parity ^ ((*CardID >> CardIdx) & 11);
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}
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*CardID = *CardID | Parity;
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// Bit 31 was fixed but not in check/parity bits
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*CardID |= 1UL << 31;
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PrintAndLogEx(SUCCESS, "Scrambled MS : FC %d - CN %d to RAW : E0000000%08X", *FC, *ID, *CardID);
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}
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return PM3_SUCCESS;
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}
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static int CmdKeriDemod(const char *Cmd) {
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(void)Cmd; // Cmd is not used so far
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if (PSKDemod("", false) != PM3_SUCCESS) {
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PrintAndLogEx(DEBUG, "DEBUG: Error - KERI: PSK1 Demod failed");
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return PM3_ESOFT;
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}
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bool invert = false;
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size_t size = DemodBufferLen;
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int idx = detectKeri(DemodBuffer, &size, &invert);
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if (idx < 0) {
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if (idx == -1)
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PrintAndLogEx(DEBUG, "DEBUG: Error - KERI: too few bits found");
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else if (idx == -2)
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PrintAndLogEx(DEBUG, "DEBUG: Error - KERI: preamble not found");
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else if (idx == -3)
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PrintAndLogEx(DEBUG, "DEBUG: Error - KERI: Size not correct: 64 != %zu", size);
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else
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PrintAndLogEx(DEBUG, "DEBUG: Error - KERI: ans: %d", idx);
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return PM3_ESOFT;
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}
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setDemodBuff(DemodBuffer, size, idx);
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setClockGrid(g_DemodClock, g_DemodStartIdx + (idx * g_DemodClock));
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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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//get internal id
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// uint32_t ID = bytebits_to_byte(DemodBuffer + 29, 32);
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// Due to the 3 sync bits being at the start of the capture
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// We can take the last 32bits as the internal ID.
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uint32_t ID = raw2;
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ID &= 0x7FFFFFFF;
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/*
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000000000000000000000000000001XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX111
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^^^^^^^^^^^^^^^^^^^^^^^^^^^^^1###############################^^^
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Preamble block 29 bits of ZEROS
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32 bit Internal ID (First bit always 1)
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3 bit of 1s in the end
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How this is decoded to Facility ID, Card number is unknown
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Facility ID = 0-31 (indicates 5 bits)
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Card number = up to 10 digits
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Might be a hash of FC & CN to generate Internal ID
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*/
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PrintAndLogEx(SUCCESS, "KERI Tag Found -- Internal ID: %u", ID);
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PrintAndLogEx(SUCCESS, "Raw: %08X%08X", raw1, raw2);
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/*
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Descramble Data.
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*/
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uint32_t fc = 0;
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uint32_t cardid = 0;
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// Just need to the low 32 bits without the 111 trailer
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CmdKeriMSScramble(Descramble, &fc, &cardid, &raw2);
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PrintAndLogEx(SUCCESS, "Descrambled MS : FC %d - CN %d\n", fc, cardid);
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if (invert) {
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PrintAndLogEx(INFO, "Had to Invert - probably KERI");
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for (size_t i = 0; i < size; i++)
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DemodBuffer[i] ^= 1;
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CmdPrintDemodBuff("x");
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}
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return PM3_SUCCESS;
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}
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static int CmdKeriRead(const char *Cmd) {
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lf_read(false, 10000);
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return CmdKeriDemod(Cmd);
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}
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static int CmdKeriClone(const char *Cmd) {
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uint8_t cmdidx = 0;
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char keritype = 'i'; // default to internalid
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uint32_t fc = 0;
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uint32_t cid = 0;
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uint32_t internalid = 0;
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uint32_t blocks[3] = {
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T55x7_TESTMODE_DISABLED |
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T55x7_X_MODE |
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T55x7_MODULATION_PSK1 |
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T55x7_PSKCF_RF_2 |
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2 << T55x7_MAXBLOCK_SHIFT,
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0,
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0
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};
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// dynamic bitrate used
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blocks[0] |= 0xF << 18;
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char cmdp = tolower(param_getchar(Cmd, 0));
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if (strlen(Cmd) == 0 || cmdp == 'h') return usage_lf_keri_clone();
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// Assume old format for backwards compatibility and only parameter is the internal id
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cid = param_get32ex(Cmd, 0, 0, 10);
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// find other options
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while (param_getchar(Cmd, cmdidx) != 0x00) { // && !errors) {
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switch (tolower(param_getchar(Cmd, cmdidx))) {
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case 'h': // help
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return usage_lf_keri_clone();
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case 't': // format type
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keritype = tolower(param_getchar(Cmd, cmdidx + 1));
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cmdidx += 2;
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break;
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case 'f': // fc
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fc = param_get32ex(Cmd, cmdidx + 1, 0, 10);
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cmdidx += 2;
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break;
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case 'c': // cardid
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cid = param_get32ex(Cmd, cmdidx + 1, 0, 10);
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cmdidx += 2;
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break;
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case 'q': // q5
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blocks[0] =
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T5555_MODULATION_PSK1 |
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T5555_SET_BITRATE(128) |
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T5555_PSK_RF_2 |
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2 << T5555_MAXBLOCK_SHIFT;
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cmdidx++;
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break;
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default:
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// Skip unknown
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cmdidx++;
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}
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}
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// this is managed in above code
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// internalid = param_get32ex(Cmd, 0, 0, 10);
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/*
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// Q5 is caught in the while loop
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//Q5
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if (tolower(param_getchar(Cmd, 1)) == 'q') {
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blocks[0] =
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T5555_MODULATION_PSK1 |
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T5555_SET_BITRATE(128) |
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T5555_PSK_RF_2 |
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2 << T5555_MAXBLOCK_SHIFT;
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}
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*/
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// Setup card data/build internal id
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switch (keritype) {
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case 'i' : // Internal ID
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// MSB is ONE
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internalid = cid | 0x80000000;
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break;
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case 'm' : // MS
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CmdKeriMSScramble(Scramble, &fc, &cid, &internalid);
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break;
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}
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// Prepare and write to card
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// 3 LSB is ONE
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uint64_t data = ((uint64_t)internalid << 3) + 7;
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PrintAndLogEx(INFO, "Preparing to clone KERI to T55x7 with Internal Id: %" PRIx32, internalid);
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blocks[1] = data >> 32;
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blocks[2] = data & 0xFFFFFFFF;
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print_blocks(blocks, ARRAYLEN(blocks));
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int res = clone_t55xx_tag(blocks, ARRAYLEN(blocks));
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PrintAndLogEx(SUCCESS, "Done");
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PrintAndLogEx(HINT, "Hint: try " _YELLOW_("`lf keri read`") "to verify");
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return res;
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}
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static int CmdKeriSim(const char *Cmd) {
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char cmdp = tolower(param_getchar(Cmd, 0));
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if (strlen(Cmd) == 0 || cmdp == 'h')
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return usage_lf_keri_sim();
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uint64_t internalid = param_get32ex(Cmd, 0, 0, 10);
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internalid |= 0x80000000;
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internalid <<= 3;
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internalid += 7;
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uint8_t bs[64] = {0x00};
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// loop to bits
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uint8_t j = 0;
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for (int8_t i = 63; i >= 0; --i) {
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bs[j++] = ((internalid >> i) & 1);
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}
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PrintAndLogEx(SUCCESS, "Simulating KERI - Internal Id: %" PRIu64, internalid);
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lf_psksim_t *payload = calloc(1, sizeof(lf_psksim_t) + sizeof(bs));
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payload->carrier = 2;
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payload->invert = 0;
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payload->clock = 32;
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memcpy(payload->data, bs, sizeof(bs));
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PrintAndLogEx(INFO, "Simulating");
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clearCommandBuffer();
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SendCommandNG(CMD_LF_PSK_SIMULATE, (uint8_t *)payload, sizeof(lf_psksim_t) + sizeof(bs));
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free(payload);
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PacketResponseNG resp;
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WaitForResponse(CMD_LF_PSK_SIMULATE, &resp);
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PrintAndLogEx(INFO, "Done");
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if (resp.status != PM3_EOPABORTED)
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return resp.status;
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return PM3_SUCCESS;
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}
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static command_t CommandTable[] = {
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{"help", CmdHelp, AlwaysAvailable, "This help"},
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{"demod", CmdKeriDemod, AlwaysAvailable, "Demodulate an KERI tag from the GraphBuffer"},
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{"read", CmdKeriRead, IfPm3Lf, "Attempt to read and extract tag data from the antenna"},
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{"clone", CmdKeriClone, IfPm3Lf, "clone KERI tag to T55x7 (or to q5/T5555)"},
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{"sim", CmdKeriSim, IfPm3Lf, "simulate KERI tag"},
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{NULL, NULL, NULL, NULL}
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};
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static int CmdHelp(const char *Cmd) {
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(void)Cmd; // Cmd is not used so far
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CmdsHelp(CommandTable);
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return PM3_SUCCESS;
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}
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int CmdLFKeri(const char *Cmd) {
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clearCommandBuffer();
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return CmdsParse(CommandTable, Cmd);
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}
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// find KERI preamble in already demoded data
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int detectKeri(uint8_t *dest, size_t *size, bool *invert) {
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uint8_t preamble[] = {1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1};
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// sanity check.
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if (*size < sizeof(preamble) + 100) return -1;
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size_t startIdx = 0;
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if (!preambleSearch(dest, preamble, sizeof(preamble), size, &startIdx)) {
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// if didn't find preamble try again inverting
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uint8_t preamble_i[] = {0, 0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0};
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if (!preambleSearch(DemodBuffer, preamble_i, sizeof(preamble_i), size, &startIdx))
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return -2;
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*invert ^= 1;
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}
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if (*size != 64) return -3; //wrong demoded size
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return (int)startIdx;
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}
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int demodKeri(void) {
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return CmdKeriDemod("");
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}
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