RfidResearchGroup/proxmark3
1
1
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2024-09-23 16:56:15 +08:00
Code Issues Packages Projects Releases Wiki Activity
proxmark3/client/src/cmdtrace.c
Philippe Teuwen 8ac8e3d7d0 reduce variable scopes
2023-01-15 02:23:19 +01:00

1392 lines
53 KiB
C
Raw Blame History

//-----------------------------------------------------------------------------
// Copyright (C) Proxmark3 contributors. See AUTHORS.md for details.
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// See LICENSE.txt for the text of the license.
//-----------------------------------------------------------------------------
// Trace commands
//-----------------------------------------------------------------------------
#include "cmdtrace.h"
#include <ctype.h>
#include "cmdparser.h" // command_t
#include "protocols.h"
#include "parity.h" // oddparity
#include "cmdhflist.h" // annotations
#include "commonutil.h" // ARRAYLEN
#include "mifare/mifaredefault.h" // mifare default key array
#include "comms.h" // for sending cmds to device. GetFromBigBuf
#include "fileutils.h" // for saveFile
#include "cmdlfhitag.h" // annotate hitag
#include "pm3_cmd.h" // tracelog_hdr_t
#include "cliparser.h" // args..
static int CmdHelp(const char *Cmd);
// trace pointer
static uint8_t *gs_trace;
static uint16_t gs_traceLen = 0;
static bool is_last_record(uint16_t tracepos, uint16_t traceLen) {
return ((tracepos + TRACELOG_HDR_LEN) >= traceLen);
}
static bool next_record_is_response(uint16_t tracepos, uint8_t *trace) {
tracelog_hdr_t *hdr = (tracelog_hdr_t *)(trace + tracepos);
return (hdr->isResponse);
}
static bool merge_topaz_reader_frames(uint32_t timestamp, uint32_t *duration, uint16_t *tracepos, uint16_t traceLen,
uint8_t *trace, uint8_t *frame, uint8_t *topaz_reader_command, uint16_t *data_len) {
#define MAX_TOPAZ_READER_CMD_LEN 16
uint32_t last_timestamp = timestamp + *duration;
if ((*data_len != 1) || (frame[0] == TOPAZ_WUPA) || (frame[0] == TOPAZ_REQA)) return false;
memcpy(topaz_reader_command, frame, *data_len);
while (!is_last_record(*tracepos, traceLen) && !next_record_is_response(*tracepos, trace)) {
tracelog_hdr_t *hdr = (tracelog_hdr_t *)(trace + *tracepos);
*tracepos += TRACELOG_HDR_LEN + hdr->data_len;
if ((hdr->data_len == 1) && (*data_len + hdr->data_len <= MAX_TOPAZ_READER_CMD_LEN)) {
memcpy(topaz_reader_command + *data_len, hdr->frame, hdr->data_len);
*data_len += hdr->data_len;
last_timestamp = hdr->timestamp + hdr->duration;
} else {
// rewind and exit
*tracepos = *tracepos - hdr->data_len - TRACELOG_HDR_LEN;
break;
}
*tracepos += TRACELOG_PARITY_LEN(hdr);
}
*duration = last_timestamp - timestamp;
return true;
}
static uint8_t calc_pos(const uint8_t *d) {
// PCB [CID] [NAD] [INF] CRC CRC
uint8_t pos = 1;
if ((d[0] & 0x08) == 0x08) // cid byte following
pos++;
if ((d[0] & 0x04) == 0x04) // nad byte following
pos++;
return pos;
}
static uint8_t extract_uid[10] = {0};
static uint8_t extract_uidlen = 0;
static uint8_t extract_epurse[8] = {0};
#define SKIP_TO_NEXT(a) (TRACELOG_HDR_LEN + (a)->data_len + TRACELOG_PARITY_LEN((a)))
static uint16_t extractChall_ev2(uint16_t tracepos, uint8_t *trace, uint8_t cmdpos, uint8_t long_jmp) {
tracelog_hdr_t *next_hdr = (tracelog_hdr_t *)(trace + tracepos);
if (next_hdr->data_len != 21) {
return 0;
}
tracepos += TRACELOG_HDR_LEN + next_hdr->data_len + TRACELOG_PARITY_LEN(next_hdr);
PrintAndLogEx(INFO, "1499999999 %s " NOLF, sprint_hex_inrow(next_hdr->frame + 1, 16));
next_hdr = (tracelog_hdr_t *)(trace + tracepos);
tracepos += TRACELOG_HDR_LEN + next_hdr->data_len + TRACELOG_PARITY_LEN(next_hdr);
if (next_hdr->frame[cmdpos] == MFDES_ADDITIONAL_FRAME) {
PrintAndLogEx(NORMAL, "%s", sprint_hex_inrow(next_hdr->frame + cmdpos + long_jmp, 32));
} else {
PrintAndLogEx(NORMAL, "");
}
return tracepos;
}
static uint16_t extractChallenges(uint16_t tracepos, uint16_t traceLen, uint8_t *trace) {
// sanity check
if (is_last_record(tracepos, traceLen)) {
return traceLen;
}
tracelog_hdr_t *hdr = (tracelog_hdr_t *)(trace + tracepos);
uint16_t data_len = hdr->data_len;
uint8_t *frame = hdr->frame;
// sanity check tracking position is less then available trace size
if (tracepos + TRACELOG_HDR_LEN + data_len + TRACELOG_PARITY_LEN(hdr) > traceLen) {
PrintAndLogEx(DEBUG, "trace pos offset %"PRIu64 " larger than reported tracelen %u",
tracepos + TRACELOG_HDR_LEN + data_len + TRACELOG_PARITY_LEN(hdr),
traceLen
);
return traceLen;
}
// set trace position
tracepos += SKIP_TO_NEXT(hdr);
// sanity check data frame length
if (data_len == 0) {
return tracepos;
}
// extract MFC
switch (frame[0]) {
case MIFARE_AUTH_KEYA: {
if (data_len > 3) {
}
break;
}
case MIFARE_AUTH_KEYB: {
if (data_len > 3) {
}
break;
}
}
// extract MFU-C
switch (frame[0]) {
case MIFARE_ULC_AUTH_1: {
if (data_len != 4) {
break;
}
// time to skip to next
tracelog_hdr_t *next_hdr = (tracelog_hdr_t *)(trace + tracepos);
tracepos += SKIP_TO_NEXT(next_hdr);
if (next_hdr->data_len != 11) {
break;
}
if (next_hdr->frame[0] != MIFARE_ULC_AUTH_2) {
break;
}
PrintAndLogEx(INFO, "MFU-C AUTH");
PrintAndLogEx(INFO, "3DES %s " NOLF, sprint_hex_inrow(next_hdr->frame + 1, 8));
next_hdr = (tracelog_hdr_t *)(trace + tracepos);
tracepos += SKIP_TO_NEXT(next_hdr);
if (next_hdr->frame[0] == MIFARE_ULC_AUTH_2 && next_hdr->data_len == 19) {
PrintAndLogEx(NORMAL, "%s", sprint_hex_inrow(next_hdr->frame + 1, 16));
}
return tracepos;
}
}
// extract iCLASS
// --csn 9655a400f8ff12e0 --epurse f0ffffffffffffff --macs 0000000089cb984b
if (hdr->isResponse == false) {
uint8_t c = frame[0] & 0x0F;
switch (c) {
case ICLASS_CMD_SELECT: {
tracelog_hdr_t *next_hdr = (tracelog_hdr_t *)(trace + tracepos);
tracepos += SKIP_TO_NEXT(next_hdr);
if (next_hdr->data_len != 10) {
break;
}
memcpy(extract_uid, next_hdr->frame, 8);
extract_uidlen = 8;
break;
}
case ICLASS_CMD_READCHECK: {
// get epurse
if (frame[1] == 2 && data_len == 2) {
tracelog_hdr_t *next_hdr = (tracelog_hdr_t *)(trace + tracepos);
tracepos += SKIP_TO_NEXT(next_hdr);
if (next_hdr->data_len < 8) {
break;
}
memcpy(extract_epurse, next_hdr->frame, 8);
}
break;
}
case ICLASS_CMD_CHECK: {
// get macs
if (data_len == 9) {
if (extract_uidlen == 8) {
PrintAndLogEx(INFO, "hf iclass lookup --csn %s " NOLF, sprint_hex_inrow(extract_uid, extract_uidlen));
PrintAndLogEx(NORMAL, "--epurse %s " NOLF, sprint_hex_inrow(extract_epurse, 8));
PrintAndLogEx(NORMAL, "--macs %s " NOLF, sprint_hex_inrow(frame + 1, 8));
PrintAndLogEx(NORMAL, "-f iclass_default_keys.dic");
return tracepos;
}
}
break;
}
}
}
// extract UID
switch (frame[0]) {
case ISO14443A_CMD_ANTICOLL_OR_SELECT: {
// 93 20 = Anticollision (usage: 9320 - answer: 4bytes UID+1byte UID-bytes-xor)
// 93 50 = Bit oriented anti-collision (usage: 9350+ up to 5bytes, 9350 answer - up to 5bytes UID+BCC)
// 93 70 = Select (usage: 9370+5bytes 9370 answer - answer: 1byte SAK)
if (frame[1] == 0x70) {
if (frame[2] == 0x88) {
memcpy(extract_uid, frame + 3, 3);
extract_uidlen = 3;
} else {
memcpy(extract_uid, frame + 2, 4);
extract_uidlen = 4;
PrintAndLogEx(INFO, "UID... " _YELLOW_("%s"), sprint_hex_inrow(extract_uid, extract_uidlen));
}
}
break;
}
case ISO14443A_CMD_ANTICOLL_OR_SELECT_2: {
// 95 20 = Anticollision of cascade level2
// 95 50 = Bit oriented anti-collision level2
// 95 70 = Select of cascade level2
if (frame[1] == 0x70) {
if (frame[2] == 0x88) {
memcpy(extract_uid + extract_uidlen, frame + 3, 3);
extract_uidlen += 3;
} else {
memcpy(extract_uid + extract_uidlen, frame + 2, 4);
extract_uidlen += 4;
PrintAndLogEx(INFO, "UID... " _YELLOW_("%s"), sprint_hex_inrow(extract_uid, extract_uidlen));
}
}
break;
}
case ISO14443A_CMD_ANTICOLL_OR_SELECT_3: {
// 97 20 = Anticollision of cascade level3
// 97 50 = Bit oriented anti-collision level3
// 97 70 = Select of cascade level3
if (frame[1] == 0x70) {
memcpy(extract_uid + extract_uidlen, frame + 2, 4);
extract_uidlen += 4;
PrintAndLogEx(INFO, "UID... " _YELLOW_("%s"), sprint_hex_inrow(extract_uid, extract_uidlen));
}
break;
}
}
// extract DESFIRE
if ((frame[0] & 0xC0) != 0x00) {
return tracepos;
}
if (hdr->isResponse) {
return tracepos;
}
// PCB [CID] [NAD] [INF] CRC CRC
uint8_t pos = calc_pos(frame);
uint8_t long_jmp = (data_len > 6) ? 4 : 1;
for (uint8_t i = 0; i < 2; i++, pos++) {
switch (frame[pos]) {
case MFDES_AUTHENTICATE: {
// Assume wrapped or unwrapped
PrintAndLogEx(INFO, "AUTH NATIVE (keyNo %d)", frame[pos + long_jmp]);
if (next_record_is_response(tracepos, trace) == false) {
break;
}
tracelog_hdr_t *next_hdr = (tracelog_hdr_t *)(trace + tracepos);
if (next_hdr->data_len < 7) {
break;
}
tracepos += TRACELOG_HDR_LEN + next_hdr->data_len + TRACELOG_PARITY_LEN(next_hdr);
PrintAndLogEx(INFO, "DES 1499999999 %s " NOLF, sprint_hex_inrow(next_hdr->frame + 1, 8));
next_hdr = (tracelog_hdr_t *)(trace + tracepos);
tracepos += TRACELOG_HDR_LEN + next_hdr->data_len + TRACELOG_PARITY_LEN(next_hdr);
if (next_hdr->frame[pos] == MFDES_ADDITIONAL_FRAME) {
PrintAndLogEx(NORMAL, "%s", sprint_hex_inrow(next_hdr->frame + pos + long_jmp, 16));
} else {
PrintAndLogEx(NORMAL, "");
}
return tracepos; // AUTHENTICATE_NATIVE
}
case MFDES_AUTHENTICATE_ISO: {
// Assume wrapped or unwrapped
PrintAndLogEx(INFO, "AUTH ISO (keyNo %d)", frame[pos + long_jmp]);
if (next_record_is_response(tracepos, trace) == false) {
break;
}
tracelog_hdr_t *next_hdr = (tracelog_hdr_t *)(trace + tracepos);
tracepos += TRACELOG_HDR_LEN + next_hdr->data_len + TRACELOG_PARITY_LEN(next_hdr);
if (next_hdr->data_len < 7) {
break;
}
uint8_t tdea = 8;
if (next_hdr->data_len > 20) {
tdea = 16;
PrintAndLogEx(INFO, "3TDEA 1499999999 %s " NOLF, sprint_hex_inrow(next_hdr->frame + 1, tdea));
} else {
PrintAndLogEx(INFO, "2TDEA 1499999999 %s " NOLF, sprint_hex_inrow(next_hdr->frame + 1, tdea));
}
next_hdr = (tracelog_hdr_t *)(trace + tracepos);
tracepos += TRACELOG_HDR_LEN + next_hdr->data_len + TRACELOG_PARITY_LEN(next_hdr);
if (next_hdr->frame[pos] == MFDES_ADDITIONAL_FRAME) {
PrintAndLogEx(NORMAL, "%s", sprint_hex_inrow(next_hdr->frame + pos + long_jmp, (tdea << 1)));
} else {
PrintAndLogEx(NORMAL, "");
}
return tracepos; // AUTHENTICATE_STANDARD
}
case MFDES_AUTHENTICATE_AES: {
// Assume wrapped or unwrapped
PrintAndLogEx(INFO, "AUTH AES (keyNo %d)", frame[pos + long_jmp]);
if (next_record_is_response(tracepos, trace)) {
break;
}
tracelog_hdr_t *next_hdr = (tracelog_hdr_t *)(trace + tracepos);
tracepos += TRACELOG_HDR_LEN + next_hdr->data_len + TRACELOG_PARITY_LEN(next_hdr);
if (next_hdr->data_len < 7) {
break;
}
PrintAndLogEx(INFO, "AES 1499999999 %s " NOLF, sprint_hex_inrow(next_hdr->frame + 1, 8));
next_hdr = (tracelog_hdr_t *)(trace + tracepos);
tracepos += TRACELOG_HDR_LEN + next_hdr->data_len + TRACELOG_PARITY_LEN(next_hdr);
if (next_hdr->frame[pos] == MFDES_ADDITIONAL_FRAME) {
PrintAndLogEx(NORMAL, "%s", sprint_hex_inrow(next_hdr->frame + pos + long_jmp, 16));
} else {
PrintAndLogEx(NORMAL, "");
}
return tracepos;
}
case MFDES_AUTHENTICATE_EV2F: {
PrintAndLogEx(INFO, "AUTH EV2 First");
uint16_t tmp = extractChall_ev2(tracepos, trace, pos, long_jmp);
if (tmp == 0)
break;
else
return tmp;
}
case MFDES_AUTHENTICATE_EV2NF: {
PrintAndLogEx(INFO, "AUTH EV2 Non First");
uint16_t tmp = extractChall_ev2(tracepos, trace, pos, long_jmp);
if (tmp == 0)
break;
else
return tmp;
}
}
}
return tracepos;
}
static uint16_t printHexLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol) {
// sanity check
if (is_last_record(tracepos, traceLen)) return traceLen;
tracelog_hdr_t *hdr = (tracelog_hdr_t *)(trace + tracepos);
if (TRACELOG_HDR_LEN + hdr->data_len + TRACELOG_PARITY_LEN(hdr) > traceLen) {
return traceLen;
}
//set trace position
tracepos += TRACELOG_HDR_LEN + hdr->data_len + TRACELOG_PARITY_LEN(hdr);
if (hdr->data_len == 0) {
PrintAndLogEx(NORMAL, "<empty trace - possible error>");
return tracepos;
}
uint16_t ret;
switch (protocol) {
case ISO_14443A: {
/* https://www.kaiser.cx/pcap-iso14443.html defines a pseudo header:
* version (currently 0x00), event (Rdr: 0xfe, Tag: 0xff), length (2 bytes)
* to convert to pcap(ng) via text2pcap or to import into Wireshark
* we use format timestamp, newline, offset (0x000000), pseudo header, data
* `text2pcap -t "%S." -l 264 -n <input-text-file> <output-pcapng-file>`
*/
int line_len = (hdr->data_len * 3) + 1;
char line[line_len];
char *ptr = line;
for (int i = 0; i < hdr->data_len ; i++) {
ptr += snprintf(ptr, line_len, "%02x ", hdr->frame[i]);
line_len -= 3;
if (line_len <= 0) {
break;
}
}
char data_len_str[5];
char temp_str1[3] = {0};
char temp_str2[3] = {0};
snprintf(data_len_str, sizeof(data_len_str), "%04x", hdr->data_len);
memmove(temp_str1, data_len_str, 2);
memmove(temp_str2, data_len_str + 2, 2);
PrintAndLogEx(NORMAL, "0.%010u", hdr->timestamp);
PrintAndLogEx(NORMAL, "000000 00 %s %s %s %s",
(hdr->isResponse ? "ff" : "fe"),
temp_str1,
temp_str2,
line);
ret = tracepos;
break;
}
default:
PrintAndLogEx(NORMAL, "Currently only 14a supported");
ret = traceLen;
break;
}
return ret;
}
static uint16_t printTraceLine(uint16_t tracepos, uint16_t traceLen, uint8_t *trace, uint8_t protocol, bool showWaitCycles, bool markCRCBytes, uint32_t *prev_eot, bool use_us,
const uint64_t *mfDicKeys, uint32_t mfDicKeysCount) {
// sanity check
if (is_last_record(tracepos, traceLen)) {
PrintAndLogEx(DEBUG, "last record triggered. t-pos: %u t-len %u", tracepos, traceLen);
return traceLen;
}
uint32_t end_of_transmission_timestamp = 0;
uint8_t topaz_reader_command[9];
char explanation[40] = {0};
tracelog_hdr_t *first_hdr = (tracelog_hdr_t *)(trace);
tracelog_hdr_t *hdr = (tracelog_hdr_t *)(trace + tracepos);
uint32_t duration = hdr->duration;
uint16_t data_len = hdr->data_len;
if (tracepos + TRACELOG_HDR_LEN + data_len + TRACELOG_PARITY_LEN(hdr) > traceLen) {
PrintAndLogEx(DEBUG, "trace pos offset %"PRIu64 " larger than reported tracelen %u",
tracepos + TRACELOG_HDR_LEN + data_len + TRACELOG_PARITY_LEN(hdr),
traceLen
);
return traceLen;
}
// adjust for different time scales
if (protocol == ICLASS || protocol == ISO_15693) {
duration *= 32;
}
uint8_t *frame = hdr->frame;
uint8_t *parityBytes = hdr->frame + data_len;
tracepos += TRACELOG_HDR_LEN + data_len + TRACELOG_PARITY_LEN(hdr);
if (protocol == TOPAZ && !hdr->isResponse) {
// topaz reader commands come in 1 or 9 separate frames with 7 or 8 Bits each.
// merge them:
if (merge_topaz_reader_frames(hdr->timestamp, &duration, &tracepos, traceLen, trace, frame, topaz_reader_command, &data_len)) {
frame = topaz_reader_command;
}
}
//Check the CRC status
uint8_t crcStatus = 2;
if (data_len > 2) {
switch (protocol) {
case ICLASS:
crcStatus = iclass_CRC_check(hdr->isResponse, frame, data_len);
break;
case ISO_14443B:
case TOPAZ:
crcStatus = iso14443B_CRC_check(frame, data_len);
break;
case FELICA:
crcStatus = !felica_CRC_check(frame + 2, data_len - 4);
break;
case PROTO_MIFARE:
crcStatus = mifare_CRC_check(hdr->isResponse, frame, data_len);
break;
case ISO_14443A:
case MFDES:
case LTO:
case SEOS:
crcStatus = iso14443A_CRC_check(hdr->isResponse, frame, data_len);
break;
case ISO_7816_4:
crcStatus = iso14443A_CRC_check(hdr->isResponse, frame, data_len) == 1 ? 3 : 0;
crcStatus = iso14443B_CRC_check(frame, data_len) == 1 ? 4 : crcStatus;
break;
case THINFILM:
frame[data_len - 1] ^= frame[data_len - 2];
frame[data_len - 2] ^= frame[data_len - 1];
frame[data_len - 1] ^= frame[data_len - 2];
crcStatus = iso14443A_CRC_check(true, frame, data_len);
frame[data_len - 1] ^= frame[data_len - 2];
frame[data_len - 2] ^= frame[data_len - 1];
frame[data_len - 1] ^= frame[data_len - 2];
break;
case ISO_15693:
crcStatus = iso15693_CRC_check(frame, data_len);
break;
case PROTO_HITAG1:
case PROTO_HITAGS:
crcStatus = hitag1_CRC_check(frame, (data_len * 8) - ((8 - parityBytes[0]) % 8));
case PROTO_CRYPTORF:
case PROTO_HITAG2:
default:
break;
}
}
//0 CRC-command, CRC not ok
//1 CRC-command, CRC ok
//2 Not crc-command
//--- Draw the data column
char line[18][160] = {{0}};
if (data_len == 0) {
if (protocol == ICLASS && duration == 2048) {
snprintf(line[0], sizeof(line[0]), "<SOF>");
} else if (protocol == ISO_15693 && duration == 512) {
snprintf(line[0], sizeof(line[0]), "<EOF>");
} else {
snprintf(line[0], sizeof(line[0]), "<empty trace - possible error>");
}
}
uint8_t partialbytebuff = 0;
uint8_t offset = 0;
for (int j = 0; j < data_len && j / 18 < 18; j++) {
uint8_t parityBits = parityBytes[j >> 3];
if (protocol != LEGIC
&& protocol != ISO_14443B
&& protocol != ISO_15693
&& protocol != ICLASS
&& protocol != ISO_7816_4
&& protocol != PROTO_HITAG1
&& protocol != PROTO_HITAG2
&& protocol != PROTO_HITAGS
&& protocol != THINFILM
&& protocol != FELICA
&& protocol != LTO
&& protocol != PROTO_CRYPTORF
&& (hdr->isResponse || protocol == ISO_14443A || protocol == PROTO_MIFARE || protocol == SEOS)
&& (oddparity8(frame[j]) != ((parityBits >> (7 - (j & 0x0007))) & 0x01))) {
snprintf(line[j / 18] + ((j % 18) * 4), 120, "%02x! ", frame[j]);
} else if (protocol == ICLASS && hdr->isResponse == false) {
uint8_t parity = 0;
for (int i = 0; i < 6; i++) {
parity ^= ((frame[0] >> i) & 1);
}
if (parity == ((frame[0] >> 7) & 1)) {
snprintf(line[j / 18] + ((j % 18) * 4), 120, "%02x ", frame[j]);
} else {
snprintf(line[j / 18] + ((j % 18) * 4), 120, "%02x! ", frame[j]);
}
} else if (((protocol == PROTO_HITAG1) || (protocol == PROTO_HITAG2) || (protocol == PROTO_HITAGS)) && (parityBytes[0] > 0)) {
// handle partial bytes
uint8_t nbits = parityBytes[0];
if (j == 0) {
partialbytebuff = frame[0] << nbits;
snprintf(line[0], 120, "%02x(%i) ", frame[0] >> (8 - nbits), nbits);
offset = 2;
} else {
uint8_t byte = partialbytebuff | (frame[j] >> (8 - nbits));
partialbytebuff = frame[j] << nbits;
snprintf(line[j / 18] + ((j % 18) * 4) + offset, 120, "%02x ", byte);
}
} else {
snprintf(line[j / 18] + ((j % 18) * 4), 120, "%02x ", frame[j]);
}
}
uint8_t crc_format_string_offset = 0;
if (markCRCBytes && data_len > 2) {
//CRC-command
if (((protocol == PROTO_HITAG1) || (protocol == PROTO_HITAGS)) && (data_len > 1)) {
// Note that UID REQUEST response has no CRC, but we don't know
// if the response we see is a UID
char *pos1 = line[(data_len - 1) / 18] + (((data_len - 1) % 18) * 4) + offset - 1;
(*pos1) = '[';
char *pos2 = line[(data_len) / 18] + (((data_len) % 18) * 4) + offset - 2;
(*pos2) = ']';
(*(pos2 + 1)) = '\0';
} else {
if (crcStatus == 0 || crcStatus == 1) {
char *pos1 = line[(data_len - 2) / 18];
pos1 += (((data_len - 2) % 18) * 4) - 1;
(*(pos1 + 6 + 1)) = '\0';
char *cb_str = str_dup(pos1 + 1);
if (hdr->isResponse) {
if (g_session.supports_colors) {
if (crcStatus == 0) {
snprintf(pos1, 24, " " _RED_("%s") " ", cb_str);
} else {
snprintf(pos1, 24, " " _GREEN_("%s") " ", cb_str);
}
crc_format_string_offset = 9;
} else {
snprintf(pos1, 9, "[%s]", cb_str);
}
} else {
if (g_session.supports_colors) {
if (crcStatus == 0) {
snprintf(pos1, 24, AEND " " _RED_("%s") " ", cb_str);
} else {
snprintf(pos1, 24, AEND " " _GREEN_("%s") " ", cb_str);
}
crc_format_string_offset = 13;
} else {
snprintf(pos1, 9, "[%s]", cb_str);
}
}
free(cb_str);
}
}
}
// Draw the CRC column
const char *crcstrings[] = { _RED_(" !! "), _GREEN_(" ok "), " ", _GREEN_("A ok"), _GREEN_("B ok") };
const char *crc = crcstrings[crcStatus];
// mark short bytes (less than 8 Bit + Parity)
if (protocol == ISO_14443A ||
protocol == PROTO_MIFARE ||
protocol == THINFILM) {
// approximated with 128 * (9 * data_len);
uint16_t bitime = 1056 + 32;
if (duration < bitime) {
uint8_t m = 7;
while (m > 0) {
bitime -= 128;
if (duration > bitime) {
break;
}
m--;
}
if (data_len) {
line[(data_len - 1) / 16][((data_len - 1) % 16) * 4 + 2] = '(';
line[(data_len - 1) / 16][((data_len - 1) % 16) * 4 + 3] = m + 0x30;
line[(data_len - 1) / 16][((data_len - 1) % 16) * 4 + 4] = ')';
}
}
}
uint32_t previous_end_of_transmission_timestamp = 0;
if (prev_eot) {
if (*prev_eot) {
previous_end_of_transmission_timestamp = *prev_eot;
} else {
previous_end_of_transmission_timestamp = hdr->timestamp;
}
}
end_of_transmission_timestamp = hdr->timestamp + duration;
if (prev_eot)
*prev_eot = end_of_transmission_timestamp;
// Always annotate these protocols both reader/tag messages
switch (protocol) {
case ISO_14443A:
case ISO_7816_4:
annotateIso14443a(explanation, sizeof(explanation), frame, data_len, hdr->isResponse);
break;
case PROTO_MIFARE:
annotateMifare(explanation, sizeof(explanation), frame, data_len, parityBytes, TRACELOG_PARITY_LEN(hdr), hdr->isResponse);
break;
case PROTO_HITAG1:
annotateHitag1(explanation, sizeof(explanation), frame, data_len, hdr->isResponse);
break;
case PROTO_HITAG2:
annotateHitag2(explanation, sizeof(explanation), frame, data_len, hdr->isResponse);
break;
case PROTO_HITAGS:
annotateHitagS(explanation, sizeof(explanation), frame, data_len, hdr->isResponse);
break;
case ICLASS:
annotateIclass(explanation, sizeof(explanation), frame, data_len, hdr->isResponse);
break;
default:
break;
}
if (hdr->isResponse == false) {
switch (protocol) {
case LEGIC:
annotateLegic(explanation, sizeof(explanation), frame, data_len);
break;
case MFDES:
annotateMfDesfire(explanation, sizeof(explanation), frame, data_len);
break;
case ISO_14443B:
annotateIso14443b(explanation, sizeof(explanation), frame, data_len);
break;
case TOPAZ:
annotateTopaz(explanation, sizeof(explanation), frame, data_len);
break;
case ISO_7816_4:
annotateIso7816(explanation, sizeof(explanation), frame, data_len);
break;
case ISO_15693:
annotateIso15693(explanation, sizeof(explanation), frame, data_len);
break;
case FELICA:
annotateFelica(explanation, sizeof(explanation), frame, data_len);
break;
case LTO:
annotateLTO(explanation, sizeof(explanation), frame, data_len);
break;
case PROTO_CRYPTORF:
annotateCryptoRF(explanation, sizeof(explanation), frame, data_len);
break;
case SEOS:
annotateSeos(explanation, sizeof(explanation), frame, data_len);
break;
default:
break;
}
}
int num_lines = MIN((data_len - 1) / 18 + 1, 18);
for (int j = 0; j < num_lines ; j++) {
if (j == 0) {
uint32_t time1 = hdr->timestamp - first_hdr->timestamp;
uint32_t time2 = end_of_transmission_timestamp - first_hdr->timestamp;
if (prev_eot) {
time1 = hdr->timestamp - previous_end_of_transmission_timestamp;
time2 = duration;
}
if (hdr->isResponse) {
// tag row
if (use_us) {
PrintAndLogEx(NORMAL, " %10.1f | %10.1f | Tag |%-*s | %s| %s",
(float)time1 / 13.56,
(float)time2 / 13.56,
72 + crc_format_string_offset,
line[j],
(j == num_lines - 1) ? crc : " ",
(j == num_lines - 1) ? explanation : ""
);
} else {
PrintAndLogEx(NORMAL, " %10u | %10u | Tag |%-*s | %s| %s",
time1,
time2,
72 + crc_format_string_offset,
line[j],
(j == num_lines - 1) ? crc : " ",
(j == num_lines - 1) ? explanation : ""
);
}
} else {
// reader row
if (use_us) {
PrintAndLogEx(NORMAL,
_YELLOW_(" %10.1f") " | " _YELLOW_("%10.1f") " | " _YELLOW_("Rdr") " |" _YELLOW_("%-*s")" | " _YELLOW_("%s") "| " _YELLOW_("%s"),
(float)time1 / 13.56,
(float)time2 / 13.56,
72 + crc_format_string_offset,
line[j],
(j == num_lines - 1) ? crc : " ",
(j == num_lines - 1) ? explanation : ""
);
} else {
PrintAndLogEx(NORMAL,
_YELLOW_(" %10u") " | " _YELLOW_("%10u") " | " _YELLOW_("Rdr") " |" _YELLOW_("%-*s")" | " _YELLOW_("%s") "| " _YELLOW_("%s"),
time1,
time2,
72 + crc_format_string_offset,
line[j],
(j == num_lines - 1) ? crc : " ",
(j == num_lines - 1) ? explanation : ""
);
}
}
} else {
if (hdr->isResponse) {
PrintAndLogEx(NORMAL, " | | |%-*s | %s| %s",
72 + crc_format_string_offset,
line[j],
(j == num_lines - 1) ? crc : " ",
(j == num_lines - 1) ? explanation : ""
);
} else {
PrintAndLogEx(NORMAL, " | | |" _YELLOW_("%-*s")" | " _YELLOW_("%s") "| " _YELLOW_("%s"),
72 + crc_format_string_offset,
line[j],
(j == num_lines - 1) ? crc : " ",
(j == num_lines - 1) ? explanation : ""
);
}
}
}
if (protocol == PROTO_MIFARE) {
uint8_t mfData[32] = {0};
size_t mfDataLen = 0;
if (DecodeMifareData(frame, data_len, parityBytes, hdr->isResponse, mfData, &mfDataLen, mfDicKeys, mfDicKeysCount)) {
memset(explanation, 0x00, sizeof(explanation));
annotateIso14443a(explanation, sizeof(explanation), mfData, mfDataLen, hdr->isResponse);
uint8_t crcc = iso14443A_CRC_check(hdr->isResponse, mfData, mfDataLen);
PrintAndLogEx(NORMAL, " | | * |%-*s | %-4s| %s",
72 + crc_format_string_offset,
sprint_hex_inrow_spaces(mfData, mfDataLen, 2),
(crcc == 0 ? _RED_(" !! ") : (crcc == 1 ? _GREEN_(" ok ") : " ")),
explanation);
}
}
if (is_last_record(tracepos, traceLen)) {
return traceLen;
}
if (showWaitCycles && hdr->isResponse == false && next_record_is_response(tracepos, trace)) {
tracelog_hdr_t *next_hdr = (tracelog_hdr_t *)(trace + tracepos);
uint32_t time1 = end_of_transmission_timestamp - first_hdr->timestamp;
uint32_t time2 = next_hdr->timestamp - first_hdr->timestamp;
if (prev_eot) {
time1 = 0;
time2 = next_hdr->timestamp - end_of_transmission_timestamp;
}
if (use_us) {
PrintAndLogEx(NORMAL, " %10.1f | %10.1f | %s |fdt (Frame Delay Time): " _YELLOW_("%.1f"),
(float)time1 / 13.56,
(float)time2 / 13.56,
" ",
(float)(next_hdr->timestamp - end_of_transmission_timestamp) / 13.56);
} else {
PrintAndLogEx(NORMAL, " %10u | %10u | %s |fdt (Frame Delay Time): " _YELLOW_("%d"),
time1,
time2,
" ",
(next_hdr->timestamp - end_of_transmission_timestamp));
}
}
return tracepos;
}
static int download_trace(void) {
if (IfPm3Present() == false) {
PrintAndLogEx(FAILED, "You requested a trace upload in offline mode, consider using parameter '-1' for working from Tracebuffer");
return PM3_EINVARG;
}
// reserve some space.
if (gs_trace)
free(gs_trace);
gs_traceLen = 0;
gs_trace = calloc(PM3_CMD_DATA_SIZE, sizeof(uint8_t));
if (gs_trace == NULL) {
PrintAndLogEx(FAILED, "Cannot allocate memory for trace");
return PM3_EMALLOC;
}
PrintAndLogEx(INFO, "downloading tracelog data from device");
// Query for the size of the trace, downloading PM3_CMD_DATA_SIZE
PacketResponseNG response;
if (!GetFromDevice(BIG_BUF, gs_trace, PM3_CMD_DATA_SIZE, 0, NULL, 0, &response, 4000, true)) {
PrintAndLogEx(WARNING, "timeout while waiting for reply.");
free(gs_trace);
gs_trace = NULL;
return PM3_ETIMEOUT;
}
gs_traceLen = response.oldarg[2];
// if tracelog buffer was larger and we need to download more.
if (gs_traceLen > PM3_CMD_DATA_SIZE) {
free(gs_trace);
gs_trace = calloc(gs_traceLen, sizeof(uint8_t));
if (gs_trace == NULL) {
PrintAndLogEx(FAILED, "Cannot allocate memory for trace");
return PM3_EMALLOC;
}
if (!GetFromDevice(BIG_BUF, gs_trace, gs_traceLen, 0, NULL, 0, NULL, 2500, false)) {
PrintAndLogEx(WARNING, "command execution time out");
free(gs_trace);
gs_trace = NULL;
return PM3_ETIMEOUT;
}
}
return PM3_SUCCESS;
}
// sanity check. Don't use proxmark if it is offline and you didn't specify useTraceBuffer
/*
static int SanityOfflineCheck( bool useTraceBuffer ){
if ( !useTraceBuffer && offline) {
PrintAndLogEx(NORMAL, "Your proxmark3 device is offline. Specify [1] to use TraceBuffer data instead");
return 0;
}
return 1;
}
*/
static int CmdTraceExtract(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "trace extract",
"Extracts protocol authentication challenges from trace buffer\n",
"trace extract\n"
"trace extract -1\n"
);
void *argtable[] = {
arg_param_begin,
arg_lit0("1", "buffer", "use data from trace buffer"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
bool use_buffer = arg_get_lit(ctx, 1);
CLIParserFree(ctx);
clearCommandBuffer();
if (use_buffer == false) {
download_trace();
} else if (gs_traceLen == 0) {
PrintAndLogEx(FAILED, "You requested a trace list in offline mode but there is no trace.");
PrintAndLogEx(FAILED, "Consider using " _YELLOW_("`trace load`") " or removing parameter " _YELLOW_("`-1`"));
return PM3_EINVARG;
}
PrintAndLogEx(SUCCESS, "Recorded activity (trace len = " _YELLOW_("%u") " bytes)", gs_traceLen);
if (gs_traceLen == 0) {
return PM3_SUCCESS;
}
uint16_t tracepos = 0;
while (tracepos < gs_traceLen) {
tracepos = extractChallenges(tracepos, gs_traceLen, gs_trace);
if (kbd_enter_pressed())
break;
}
return PM3_SUCCESS;
}
static int CmdTraceLoad(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "trace load",
"Load protocol data from binary file to trace buffer\n"
"File extension is <.trace>",
"trace load -f mytracefile -> w/o file extension"
);
void *argtable[] = {
arg_param_begin,
arg_str1("f", "file", "<fn>", "Specify trace file to load"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
int fnlen = 0;
char filename[FILE_PATH_SIZE] = {0};
CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)filename, FILE_PATH_SIZE, &fnlen);
CLIParserFree(ctx);
if (gs_trace) {
free(gs_trace);
gs_trace = NULL;
}
size_t len = 0;
if (loadFile_safe(filename, ".trace", (void **)&gs_trace, &len) != PM3_SUCCESS) {
PrintAndLogEx(FAILED, "Could not open file " _YELLOW_("%s"), filename);
return PM3_EIO;
}
gs_traceLen = (long)len;
PrintAndLogEx(SUCCESS, "Recorded Activity (TraceLen = " _YELLOW_("%u") " bytes)", gs_traceLen);
PrintAndLogEx(HINT, "try " _YELLOW_("`trace list -1 -t ...`") " to view trace. Remember the " _YELLOW_("`-1`") " param");
return PM3_SUCCESS;
}
static int CmdTraceSave(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "trace save",
"Save protocol data from trace buffer to binary file\n"
"File extension is <.trace>",
"trace save -f mytracefile -> w/o file extension"
);
void *argtable[] = {
arg_param_begin,
arg_str1("f", "file", "<fn>", "Specify trace file to save"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, false);
int fnlen = 0;
char filename[FILE_PATH_SIZE] = {0};
CLIParamStrToBuf(arg_get_str(ctx, 1), (uint8_t *)filename, FILE_PATH_SIZE, &fnlen);
CLIParserFree(ctx);
if (gs_traceLen == 0) {
download_trace();
if (gs_traceLen == 0) {
PrintAndLogEx(WARNING, "trace is empty, nothing to save");
return PM3_SUCCESS;
}
}
saveFile(filename, ".trace", gs_trace, gs_traceLen);
return PM3_SUCCESS;
}
int CmdTraceListAlias(const char *Cmd, const char *alias, const char *protocol) {
CLIParserContext *ctx;
char desc[500] = {0};
snprintf(desc, sizeof(desc) - 1,
"Alias of `trace list -t %s` with selected protocol data to annotate trace buffer\n"
"You can load a trace from file (see `trace load -h`) or it be downloaded from device by default\n"
"It accepts all other arguments of `trace list`. Note that some might not be relevant for this specific protocol",
protocol);
char example[200] = {0};
snprintf(example, sizeof(example) - 1,
"%s list --frame -> show frame delay times\n"
"%s list -1 -> use trace buffer ",
alias, alias);
char fullalias[100] = {0};
snprintf(fullalias, sizeof(fullalias) - 1, "%s list", alias);
CLIParserInit(&ctx, fullalias, desc, example);
void *argtable[] = {
arg_param_begin,
arg_lit0("1", "buffer", "use data from trace buffer"),
arg_lit0(NULL, "frame", "show frame delay times"),
arg_lit0("c", NULL, "mark CRC bytes"),
arg_lit0("r", NULL, "show relative times (gap and duration)"),
arg_lit0("u", NULL, "display times in microseconds instead of clock cycles"),
arg_lit0("x", NULL, "show hexdump to convert to pcap(ng)\n"
" or to import into Wireshark using encapsulation type \"ISO 14443\""),
arg_str0("f", "file", "<fn>", "filename of dictionary"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
CLIParserFree(ctx);
char args[128] = {0};
snprintf(args, sizeof(args), "-c -t %s ", protocol);
strncat(args, Cmd, sizeof(args) - strlen(args) - 1);
return CmdTraceList(args);
}
int CmdTraceList(const char *Cmd) {
CLIParserContext *ctx;
CLIParserInit(&ctx, "trace list",
"Annotate trace buffer with selected protocol data\n"
"You can load a trace from file (see `trace load -h`) or it be downloaded from device by default\n",
"trace list -t raw -> just show raw data without annotations\n"
"\n"
"trace list -t 14a -> interpret as " _YELLOW_("ISO14443-A") "\n"
"trace list -t 14b -> interpret as " _YELLOW_("ISO14443-B") "\n"
"trace list -t 15 -> interpret as " _YELLOW_("ISO15693") "\n"
"trace list -t 7816 -> interpret as " _YELLOW_("ISO7816-4") "\n"
"trace list -t cryptorf -> interpret as " _YELLOW_("CryptoRF") "\n\n"
"trace list -t des -> interpret as " _YELLOW_("MIFARE DESFire") "\n"
"trace list -t felica -> interpret as " _YELLOW_("ISO18092 / FeliCa") "\n"
"trace list -t hitag1 -> interpret as " _YELLOW_("Hitag1") "\n"
"trace list -t hitag2 -> interpret as " _YELLOW_("Hitag2") "\n"
"trace list -t hitags -> interpret as " _YELLOW_("HitagS") "\n"
"trace list -t iclass -> interpret as " _YELLOW_("iCLASS") "\n"
"trace list -t legic -> interpret as " _YELLOW_("LEGIC") "\n"
"trace list -t lto -> interpret as " _YELLOW_("LTO-CM") "\n"
"trace list -t mf -> interpret as " _YELLOW_("MIFARE Classic") " and decrypt crypto1 stream\n"
"trace list -t seos -> interpret as " _YELLOW_("SEOS") "\n"
"trace list -t thinfilm -> interpret as " _YELLOW_("Thinfilm") "\n"
"trace list -t topaz -> interpret as " _YELLOW_("Topaz") "\n"
"\n"
"trace list -t mf -f mfc_default_keys.dic -> use default dictionary file\n"
"trace list -t 14a --frame -> show frame delay times\n"
"trace list -t 14a -1 -> use trace buffer "
);
void *argtable[] = {
arg_param_begin,
arg_lit0("1", "buffer", "use data from trace buffer"),
arg_lit0(NULL, "frame", "show frame delay times"),
arg_lit0("c", NULL, "mark CRC bytes"),
arg_lit0("r", NULL, "show relative times (gap and duration)"),
arg_lit0("u", NULL, "display times in microseconds instead of clock cycles"),
arg_lit0("x", NULL, "show hexdump to convert to pcap(ng)\n"
" or to import into Wireshark using encapsulation type \"ISO 14443\""),
arg_str0("t", "type", NULL, "protocol to annotate the trace"),
arg_str0("f", "file", "<fn>", "filename of dictionary"),
arg_param_end
};
CLIExecWithReturn(ctx, Cmd, argtable, true);
bool use_buffer = arg_get_lit(ctx, 1);
bool show_wait_cycles = arg_get_lit(ctx, 2);
bool mark_crc = arg_get_lit(ctx, 3);
bool use_relative = arg_get_lit(ctx, 4);
bool use_us = arg_get_lit(ctx, 5);
bool show_hex = arg_get_lit(ctx, 6);
int tlen = 0;
char type[10] = {0};
CLIParamStrToBuf(arg_get_str(ctx, 7), (uint8_t *)type, sizeof(type), &tlen);
str_lower(type);
int diclen = 0;
char dictionary[FILE_PATH_SIZE + 2] = {0};
if (CLIParamStrToBuf(arg_get_str(ctx, 8), (uint8_t *)dictionary, FILE_PATH_SIZE, &diclen)) {
PrintAndLogEx(FAILED, "Dictionary file name too long or invalid.");
diclen = 0;
}
CLIParserFree(ctx);
clearCommandBuffer();
// no crc, no annotations
uint8_t protocol = -1;
// validate type of output
if (strcmp(type, "14a") == 0) protocol = ISO_14443A;
else if (strcmp(type, "14b") == 0) protocol = ISO_14443B;
else if (strcmp(type, "15") == 0) protocol = ISO_15693;
else if (strcmp(type, "7816") == 0) protocol = ISO_7816_4;
else if (strcmp(type, "cryptorf") == 0) protocol = PROTO_CRYPTORF;
else if (strcmp(type, "des") == 0) protocol = MFDES;
else if (strcmp(type, "felica") == 0) protocol = FELICA;
else if (strcmp(type, "hitag1") == 0) protocol = PROTO_HITAG1;
else if (strcmp(type, "hitag2") == 0) protocol = PROTO_HITAG2;
else if (strcmp(type, "hitags") == 0) protocol = PROTO_HITAGS;
else if (strcmp(type, "iclass") == 0) protocol = ICLASS;
else if (strcmp(type, "legic") == 0) protocol = LEGIC;
else if (strcmp(type, "lto") == 0) protocol = LTO;
else if (strcmp(type, "mf") == 0) protocol = PROTO_MIFARE;
else if (strcmp(type, "raw") == 0) protocol = -1;
else if (strcmp(type, "seos") == 0) protocol = SEOS;
else if (strcmp(type, "thinfilm") == 0) protocol = THINFILM;
else if (strcmp(type, "topaz") == 0) protocol = TOPAZ;
else if (strcmp(type, "") == 0) protocol = -1;
else {
PrintAndLogEx(FAILED, "Unknown protocol \"%s\"", type);
return PM3_EINVARG;
}
if (use_buffer == false) {
download_trace();
} else if (gs_traceLen == 0) {
PrintAndLogEx(FAILED, "You requested a trace list in offline mode but there is no trace.");
PrintAndLogEx(FAILED, "Consider using " _YELLOW_("`trace load`") " or removing parameter " _YELLOW_("`-1`"));
return PM3_EINVARG;
}
PrintAndLogEx(SUCCESS, "Recorded activity (trace len = " _YELLOW_("%u") " bytes)", gs_traceLen);
if (gs_traceLen == 0) {
return PM3_SUCCESS;
}
uint16_t tracepos = 0;
/*
if (protocol == FELICA) {
printFelica(gs_traceLen, gs_trace);
} */
if (show_hex) {
while (tracepos < gs_traceLen) {
tracepos = printHexLine(tracepos, gs_traceLen, gs_trace, protocol);
}
} else {
if (use_relative) {
PrintAndLogEx(INFO, _YELLOW_("gap") " = time between transfers. " _YELLOW_("duration") " = duration of data transfer. " _YELLOW_("src") " = source of transfer");
} else {
PrintAndLogEx(INFO, _YELLOW_("start") " = start of start frame " _YELLOW_("end") " = end of frame. " _YELLOW_("src") " = source of transfer");
}
if (protocol == ISO_14443A || protocol == PROTO_MIFARE || protocol == MFDES || protocol == TOPAZ || protocol == LTO) {
if (use_us)
PrintAndLogEx(INFO, _YELLOW_("ISO14443A") " - all times are in microseconds");
else
PrintAndLogEx(INFO, _YELLOW_("ISO14443A") " - all times are in carrier periods (1/13.56MHz)");
}
if (protocol == THINFILM) {
if (use_us)
PrintAndLogEx(INFO, _YELLOW_("Thinfilm") " - all times are in microseconds");
else
PrintAndLogEx(INFO, _YELLOW_("Thinfilm") " - all times are in carrier periods (1/13.56MHz)");
}
if (protocol == ICLASS || protocol == ISO_15693) {
if (use_us)
PrintAndLogEx(INFO, _YELLOW_("ISO15693 / iCLASS") " - all times are in microseconds");
else
PrintAndLogEx(INFO, _YELLOW_("ISO15693 / iCLASS") " - all times are in carrier periods (1/13.56MHz)");
}
if (protocol == LEGIC)
PrintAndLogEx(INFO, _YELLOW_("LEGIC") " - Reader Mode: Timings are in ticks (1us == 1.5ticks)\n"
" Tag Mode: Timings are in sub carrier periods (1/212 kHz == 4.7us)");
if (protocol == ISO_14443B || protocol == PROTO_CRYPTORF) {
if (use_us)
PrintAndLogEx(INFO, _YELLOW_("ISO14443B") " - all times are in microseconds");
else
PrintAndLogEx(INFO, _YELLOW_("ISO14443B") " - all times are in carrier periods (1/13.56MHz)");
}
if (protocol == ISO_7816_4)
PrintAndLogEx(INFO, _YELLOW_("ISO7816-4 / Smartcard") " - Timings N/A");
if (protocol == PROTO_HITAG1 || protocol == PROTO_HITAG2 || protocol == PROTO_HITAGS)
PrintAndLogEx(INFO, _YELLOW_("Hitag1 / Hitag2 / HitagS") " - Timings in ETU (8us)");
if (protocol == FELICA) {
if (use_us)
PrintAndLogEx(INFO, _YELLOW_("ISO18092 / FeliCa") " - all times are in microseconds");
else
PrintAndLogEx(INFO, _YELLOW_("ISO18092 / FeliCa") " - all times are in carrier periods (1/13.56MHz)");
}
const uint64_t *dicKeys = NULL;
uint32_t dicKeysCount = 0;
bool dictionaryLoad = false;
if (protocol == PROTO_MIFARE) {
if (diclen > 0) {
uint8_t *keyBlock = NULL;
int res = loadFileDICTIONARY_safe(dictionary, (void **) &keyBlock, 6, &dicKeysCount);
if (res != PM3_SUCCESS || dicKeysCount == 0 || keyBlock == NULL) {
PrintAndLogEx(FAILED, "An error occurred while loading the dictionary! (we will use the default keys now)");
} else {
dicKeys = calloc(dicKeysCount, sizeof(uint64_t));
for (int i = 0; i < dicKeysCount; i++) {
uint64_t key = bytes_to_num(keyBlock + i * 6, 6);
memcpy((uint8_t *) &dicKeys[i], &key, sizeof(uint64_t));
}
dictionaryLoad = true;
}
if (keyBlock != NULL) {
free(keyBlock);
}
}
if (dicKeys == NULL) {
dicKeys = g_mifare_default_keys;
dicKeysCount = ARRAYLEN(g_mifare_default_keys);
}
}
PrintAndLogEx(NORMAL, "");
if (use_relative) {
PrintAndLogEx(NORMAL, " Gap | Duration | Src | Data (! denotes parity error, ' denotes short bytes) | CRC | Annotation");
} else {
PrintAndLogEx(NORMAL, " Start | End | Src | Data (! denotes parity error) | CRC | Annotation");
}
PrintAndLogEx(NORMAL, "------------+------------+-----+-------------------------------------------------------------------------+-----+--------------------");
// clean authentication data used with the mifare classic decrypt fct
if (protocol == ISO_14443A || protocol == PROTO_MIFARE)
ClearAuthData();
uint32_t previous_EOT = 0;
uint32_t *prev_EOT = NULL;
if (use_relative) {
prev_EOT = &previous_EOT;
}
while (tracepos < gs_traceLen) {
tracepos = printTraceLine(tracepos, gs_traceLen, gs_trace, protocol, show_wait_cycles, mark_crc, prev_EOT, use_us, dicKeys, dicKeysCount);
if (kbd_enter_pressed())
break;
}
if (dictionaryLoad)
free((void *) dicKeys);
}
if (show_hex)
PrintAndLogEx(HINT, "syntax to use: " _YELLOW_("`text2pcap -t \"%%S.\" -l 264 -n <input-text-file> <output-pcapng-file>`"));
return PM3_SUCCESS;
}
static command_t CommandTable[] = {
{"help", CmdHelp, AlwaysAvailable, "This help"},
{"extract", CmdTraceExtract, AlwaysAvailable, "Extract authentication challenges found in trace"},
{"list", CmdTraceList, AlwaysAvailable, "List protocol data in trace buffer"},
{"load", CmdTraceLoad, AlwaysAvailable, "Load trace from file"},
{"save", CmdTraceSave, AlwaysAvailable, "Save trace buffer to file"},
{NULL, NULL, NULL, NULL}
};
static int CmdHelp(const char *Cmd) {
(void)Cmd; // Cmd is not used so far
CmdsHelp(CommandTable);
return PM3_SUCCESS;
}
int CmdTrace(const char *Cmd) {
clearCommandBuffer();
return CmdsParse(CommandTable, Cmd);
}
Reference in a new issue View git blame Copy permalink