//-----------------------------------------------------------------------------
// Copyright (C) 2016 iceman
//
// 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.
//-----------------------------------------------------------------------------
// Analyse bytes commands
//-----------------------------------------------------------------------------
#include "cmdusart.h"
static int CmdHelp(const char *Cmd);
static int usage_usart_bt_pin(void) {
PrintAndLogEx(NORMAL, "Change BT add-on PIN");
PrintAndLogEx(NORMAL, "WARNING: this requires");
PrintAndLogEx(NORMAL, " 1) BTpower to be turned ON");
PrintAndLogEx(NORMAL, " 2) BT add-on to NOT be connected");
PrintAndLogEx(NORMAL, " => the add-on blue LED must blink");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: usart btpin [h] d NNNN");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h This help");
PrintAndLogEx(NORMAL, " d NNNN Desired PIN");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Example:");
PrintAndLogEx(NORMAL, " usart btpin 1234");
PrintAndLogEx(NORMAL, "expected output: nothing");
return PM3_SUCCESS;
}
static int usage_usart_bt_factory(void) {
PrintAndLogEx(NORMAL, "Reset BT add-on to factory settings");
PrintAndLogEx(NORMAL, _RED_("WARNING: process only if strictly needed!"));
PrintAndLogEx(NORMAL, "This requires");
PrintAndLogEx(NORMAL, " 1) BTpower to be turned ON");
PrintAndLogEx(NORMAL, " 2) BT add-on to NOT be connected");
PrintAndLogEx(NORMAL, " => the add-on blue LED must blink");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: usart btfactory [h]");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h This help");
return PM3_SUCCESS;
}
static int usage_usart_tx(void) {
PrintAndLogEx(NORMAL, "Send string over USART");
PrintAndLogEx(NORMAL, _RED_("WARNING: it will have side-effects if used in USART HOST mode!"));
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: usart tx [h] \"string\"");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h This help");
PrintAndLogEx(NORMAL, " d string string to send");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Examples:");
PrintAndLogEx(NORMAL, " usart tx d \"AT+VERSION\"");
PrintAndLogEx(NORMAL, " usart tx d \"AT+VERSION\\r\\n\"");
PrintAndLogEx(NORMAL, "expected output: nothing");
return PM3_SUCCESS;
}
static int usage_usart_txhex(void) {
PrintAndLogEx(NORMAL, "Send bytes over USART");
PrintAndLogEx(NORMAL, _RED_("WARNING: it will have side-effects if used in USART HOST mode!"));
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: usart txhex [h] d <bytes>");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h This help");
PrintAndLogEx(NORMAL, " d <bytes> bytes to send");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Examples:");
PrintAndLogEx(NORMAL, " usart txhex d 504d33620a80000000010100f09f988ef09fa5b36233");
PrintAndLogEx(NORMAL, "expected output: nothing");
return PM3_SUCCESS;
}
static int usage_usart_rx(void) {
PrintAndLogEx(NORMAL, "Receive string over USART");
PrintAndLogEx(NORMAL, _RED_("WARNING: it will have side-effects if used in USART HOST mode!"));
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: usart rx [h]");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h This help");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "expected output: Received string");
return PM3_SUCCESS;
}
static int usage_usart_rxhex(void) {
PrintAndLogEx(NORMAL, "Receive bytes over USART");
PrintAndLogEx(NORMAL, _RED_("WARNING: it will have side-effects if used in USART HOST mode!"));
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: usart rx [h]");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h This help");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "expected output: Received bytes");
return PM3_SUCCESS;
}
static int usage_usart_txrx(void) {
PrintAndLogEx(NORMAL, "Send string over USART and wait for response");
PrintAndLogEx(NORMAL, _YELLOW_("WARNING: if used in USART HOST mode, you can only send AT commands"));
PrintAndLogEx(NORMAL, _YELLOW_("to add-on when BT connection is not established (LED needs to be blinking)"));
PrintAndLogEx(NORMAL, _RED_("Any other usage in USART HOST mode will have side-effects!"));
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: usart txrx [h] [t <timeout>] \"string\"");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h This help");
PrintAndLogEx(NORMAL, " t <timeout> timeout in ms, default is 1000ms");
PrintAndLogEx(NORMAL, " d string string to send");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Examples:");
PrintAndLogEx(NORMAL, " Talking to the BT add-on (when no connection):");
PrintAndLogEx(NORMAL, " usart txrx d \"AT+VERSION\"");
PrintAndLogEx(NORMAL, " Talking to a target requiring longer time and end-of-line chars:");
PrintAndLogEx(NORMAL, " usart txrx t 2000 d \"AT+SOMESTUFF\\r\\n\"");
PrintAndLogEx(NORMAL, "expected output: Received string");
return PM3_SUCCESS;
}
static int usage_usart_config(void) {
PrintAndLogEx(NORMAL, "Configure USART");
PrintAndLogEx(NORMAL, _RED_("WARNING: it will have side-effects if used in USART HOST mode!"));
PrintAndLogEx(NORMAL, "The changes are not permanent, restart Proxmark3 to get default settings back.");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Usage: usart config [h] [b <baudrate>] [p <N|O|E>]");
PrintAndLogEx(NORMAL, "Options:");
PrintAndLogEx(NORMAL, " h This help");
PrintAndLogEx(NORMAL, " b <baudrate> Baudrate");
PrintAndLogEx(NORMAL, " p <N|O|E> Parity (None/Odd/Even)");
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(NORMAL, "Examples:");
PrintAndLogEx(NORMAL, " usart config b 9600");
PrintAndLogEx(NORMAL, " usart config b 9600 p N");
PrintAndLogEx(NORMAL, " usart config p E");
return PM3_SUCCESS;
}
static int usart_tx(uint8_t *data, size_t len) {
clearCommandBuffer();
SendCommandNG(CMD_USART_TX, data, len);
PacketResponseNG resp;
if (!WaitForResponseTimeout(CMD_USART_TX, &resp, 1000)) {
return PM3_ETIMEOUT;
}
return resp.status;
}
static int usart_rx(uint8_t *data, size_t *len) {
clearCommandBuffer();
SendCommandNG(CMD_USART_RX, NULL, 0);
PacketResponseNG resp;
if (!WaitForResponseTimeout(CMD_USART_RX, &resp, 1000)) {
return PM3_ETIMEOUT;
}
if (resp.status == PM3_SUCCESS) {
*len = resp.length;
memcpy(data, resp.data.asBytes, resp.length);
}
return resp.status;
}
static int usart_txrx(uint8_t *srcdata, size_t srclen, uint8_t *dstdata, size_t *dstlen, uint32_t waittime) {
clearCommandBuffer();
struct {
uint32_t waittime;
uint8_t data[PM3_CMD_DATA_SIZE - sizeof(uint32_t)];
} PACKED payload;
payload.waittime = waittime;
if (srclen >= sizeof(payload.data))
return PM3_EOVFLOW;
memcpy(payload.data, srcdata, srclen);
SendCommandNG(CMD_USART_TXRX, (uint8_t *)&payload, srclen + sizeof(payload.waittime));
PacketResponseNG resp;
if (!WaitForResponseTimeout(CMD_USART_TXRX, &resp, 1000)) {
return PM3_ETIMEOUT;
}
if (resp.status == PM3_SUCCESS) {
*dstlen = resp.length;
memcpy(dstdata, resp.data.asBytes, resp.length);
}
return resp.status;
}
static int set_usart_config(uint32_t baudrate, uint8_t parity) {
clearCommandBuffer();
struct {
uint32_t baudrate;
uint8_t parity;
} PACKED payload;
payload.baudrate = baudrate;
payload.parity = parity;
SendCommandNG(CMD_USART_CONFIG, (uint8_t *)&payload, sizeof(payload));
PacketResponseNG resp;
if (!WaitForResponseTimeout(CMD_USART_CONFIG, &resp, 1000)) {
return PM3_ETIMEOUT;
}
return resp.status;
}
static int CmdUsartConfig(const char *Cmd) {
uint8_t cmdp = 0;
bool errors = false;
uint32_t baudrate = 0;
uint8_t parity = 0;
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
switch (tolower(param_getchar(Cmd, cmdp))) {
case 'h':
return usage_usart_config();
case 'p':
switch (tolower(param_getchar(Cmd, cmdp + 1))) {
case 'n':
parity = 'N';
break;
case 'o':
parity = 'O';
break;
case 'e':
parity = 'E';
break;
default:
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp + 1));
errors = true;
break;
}
cmdp += 2;
break;
case 'b':
baudrate = param_get32ex(Cmd, cmdp + 1, 0, 10);
if (baudrate == 0) {
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp + 1));
errors = true;
}
cmdp += 2;
break;
default:
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
}
//Validations
if (errors || ((baudrate == 0) && (parity == 0))) {
usage_usart_config();
return PM3_EINVARG;
}
return set_usart_config(baudrate, parity);
}
static int usart_bt_testcomm(uint32_t baudrate, uint8_t parity) {
int ret = set_usart_config(baudrate, parity);
if (ret != PM3_SUCCESS)
return ret;
char *string = "AT+VERSION";
uint8_t data[PM3_CMD_DATA_SIZE] = {0x00};
size_t len = 0;
PrintAndLogEx(SUCCESS, "TX (%3u):%.*s at %u 8%c1", strlen(string), strlen(string), string, baudrate, parity);
ret = usart_txrx((uint8_t *)string, strlen(string), data, &len, 1000); // such large timeout needed
if (ret == PM3_SUCCESS) {
PrintAndLogEx(SUCCESS, "RX (%3u):%.*s", len, len, data);
if (strcmp((char *)data, "hc01.comV2.0") == 0) {
PrintAndLogEx(SUCCESS, "Add-on " _GREEN_("found!"), len, len, data);
return PM3_SUCCESS;
}
}
return PM3_ENODATA;
}
static int CmdUsartBtFactory(const char *Cmd) {
uint8_t cmdp = 0;
bool errors = false;
uint32_t baudrate = 0;
uint8_t parity = 0;
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
switch (tolower(param_getchar(Cmd, cmdp))) {
case 'h':
return usage_usart_bt_factory();
default:
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
}
//Validations
if (errors) {
usage_usart_bt_factory();
return PM3_EINVARG;
}
PrintAndLogEx(WARNING, _RED_("WARNING: process only if strictly needed!"));
PrintAndLogEx(WARNING, "This requires BT turned ON and NOT connected!");
PrintAndLogEx(WARNING, "Is the add-on blue light blinking? (Say 'n' if you want to abort) [y/n]");
while(!ukbhit()) {
msleep(200);
}
int gc = tolower(getchar());
if (gc != 'y') {
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(FAILED, "Aborting.");
return PM3_EOPABORTED;
}
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(INFO, "Trying to detect current settings... Please be patient.");
bool found = usart_bt_testcomm(USART_BAUD_RATE, USART_PARITY) == PM3_SUCCESS;
if (found) {
baudrate = USART_BAUD_RATE;
parity = USART_PARITY;
} else {
uint32_t brs[] = {1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600, 1382400};
uint8_t ps[] = { 'N', 'O', 'E' };
for (uint8_t ip = 0; (ip < ARRAYLEN(ps)) && (!found); ip++) {
for (uint8_t ibr = 0; (ibr < ARRAYLEN(brs)) && (!found); ibr++) {
found = usart_bt_testcomm(brs[ibr], ps[ip]) == PM3_SUCCESS;
if (found) {
baudrate = brs[ibr];
parity = ps[ip];
}
}
}
}
if (!found) {
PrintAndLogEx(FAILED, "Sorry, add-on not found. Abort.");
return PM3_EFATAL;
}
PrintAndLogEx(INFO, "Reconfiguring add-on to default settings.");
char *string;
uint8_t data[PM3_CMD_DATA_SIZE];
size_t len = 0;
memset(data, 0, sizeof(data));
string = "AT+NAMEPM3_RDV4.0";
PrintAndLogEx(SUCCESS, "TX (%3u):%.*s", strlen(string), strlen(string), string);
int ret = usart_txrx((uint8_t *)string, strlen(string), data, &len, 1000);
if (ret == PM3_SUCCESS) {
PrintAndLogEx(SUCCESS, "RX (%3u):%.*s", len, len, data);
if (strcmp((char *)data, "OKsetname") == 0) {
PrintAndLogEx(SUCCESS, "Name set to " _GREEN_("PM3_RDV4.0"));
} else {
PrintAndLogEx(WARNING, "Unexpected response to AT+NAME: " _YELLOW_("%.*s"), len, data);
}
} else {
PrintAndLogEx(WARNING, "Lost contact with add-on, please try again");
return PM3_EFATAL;
}
memset(data, 0, sizeof(data));
len = 0;
string = "AT+PIN1234";
PrintAndLogEx(SUCCESS, "TX (%3u):%.*s", strlen(string), strlen(string), string);
ret = usart_txrx((uint8_t *)string, strlen(string), data, &len, 1000);
if (ret == PM3_SUCCESS) {
PrintAndLogEx(SUCCESS, "RX (%3u):%.*s", len, len, data);
if (strcmp((char *)data, "OKsetPIN") == 0) {
PrintAndLogEx(SUCCESS, "PIN set to " _GREEN_("1234"));
} else {
PrintAndLogEx(WARNING, "Unexpected response to AT+PIN: " _YELLOW_("%.*s"), len, data);
}
} else {
PrintAndLogEx(WARNING, "Lost contact with add-on, please try again");
return PM3_EFATAL;
}
// parity must be changed before baudrate
if (parity != USART_PARITY) {
memset(data, 0, sizeof(data));
len = 0;
string = "AT+PN";
PrintAndLogEx(SUCCESS, "TX (%3u):%.*s", strlen(string), strlen(string), string);
ret = usart_txrx((uint8_t *)string, strlen(string), data, &len, 1000);
if (ret == PM3_SUCCESS) {
PrintAndLogEx(SUCCESS, "RX (%3u):%.*s", len, len, data);
if (strcmp((char *)data, "OK None") == 0) {
PrintAndLogEx(SUCCESS, "Parity set to " _GREEN_("None"));
} else {
PrintAndLogEx(WARNING, "Unexpected response to AT+P: " _YELLOW_("%.*s"), len, data);
}
} else {
PrintAndLogEx(WARNING, "Lost contact with add-on, please try again");
return PM3_EFATAL;
}
}
if (baudrate != USART_BAUD_RATE) {
memset(data, 0, sizeof(data));
len = 0;
string = "AT+BAUD8";
PrintAndLogEx(SUCCESS, "TX (%3u):%.*s", strlen(string), strlen(string), string);
ret = usart_txrx((uint8_t *)string, strlen(string), data, &len, 1000);
if (ret == PM3_SUCCESS) {
PrintAndLogEx(SUCCESS, "RX (%3u):%.*s", len, len, data);
if (strcmp((char *)data, "OK115200") == 0) {
PrintAndLogEx(SUCCESS, "Baudrate set to " _GREEN_("115200"));
} else {
PrintAndLogEx(WARNING, "Unexpected response to AT+BAUD: " _YELLOW_("%.*s"), len, data);
}
} else {
PrintAndLogEx(WARNING, "Lost contact with add-on, please try again");
return PM3_EFATAL;
}
}
if ((baudrate != USART_BAUD_RATE) || (parity != USART_PARITY)) {
PrintAndLogEx(WARNING, "Add-on uart settings changed, please turn BT add-on OFF and ON again, then press any key.");
while(!ukbhit()) {
msleep(200);
}
int gc = getchar();
(void)gc;
PrintAndLogEx(NORMAL, "");
PrintAndLogEx(INFO, "Trying to connect add-on with the new settings.");
found = usart_bt_testcomm(USART_BAUD_RATE, USART_PARITY) == PM3_SUCCESS;
if (!found) {
PrintAndLogEx(WARNING, "Lost contact with add-on, please try again");
return PM3_EFATAL;
}
}
PrintAndLogEx(SUCCESS, "Add-on successfully " _GREEN_("reset"));
return PM3_SUCCESS;
}
static int CmdUsartBtPin(const char *Cmd) {
uint8_t cmdp = 0;
bool errors = false;
char pin[5] = {0};
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
switch (tolower(param_getchar(Cmd, cmdp))) {
case 'h':
return usage_usart_bt_pin();
case 'd':
if (param_getstr(Cmd, cmdp + 1, pin, sizeof(pin)) != sizeof(pin) - 1) {
PrintAndLogEx(FAILED, "PIN has wrong length, must be 4 digits");
errors = true;
break;
}
for (size_t i = 0; i < sizeof(pin) - 1; i++) {
if ((pin[i] < '0') || (pin[i] > '9')) {
PrintAndLogEx(FAILED, "PIN has wrong char \"%c\", must be 4 digits", pin[i]);
errors = true;
break;
}
}
cmdp += 2;
break;
default:
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
}
//Validations
if (errors || cmdp == 0) {
usage_usart_bt_pin();
return PM3_EINVARG;
}
char string[6 + sizeof(pin)] = {0};
sprintf(string, "AT+PIN%s", pin);
uint8_t data[PM3_CMD_DATA_SIZE] = {0x00};
size_t len = 0;
// PrintAndLogEx(NORMAL, "TX (%3u):%.*s", strlen(string), strlen(string), string);
int ret = usart_txrx((uint8_t *)string, strlen(string), data, &len, 600);
if (ret == PM3_ENODATA) {
PrintAndLogEx(FAILED, "No response from add-on, is it ON and blinking?");
return ret;
}
if (ret != PM3_SUCCESS) {
PrintAndLogEx(FAILED, "Command failed, ret=%i", ret);
return ret;
}
// PrintAndLogEx(NORMAL, "RX (%3u):%.*s", len, len, data);
if (strcmp((char *)data, "OKsetPIN") == 0) {
PrintAndLogEx(NORMAL, "PIN changed " _GREEN_("successfully"));
} else {
PrintAndLogEx(WARNING, "Unexpected answer: %.*s", len, data);
}
return PM3_SUCCESS;
}
static int CmdUsartTX(const char *Cmd) {
uint8_t cmdp = 0;
bool errors = false;
char string[PM3_CMD_DATA_SIZE] = {0};
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
switch (tolower(param_getchar(Cmd, cmdp))) {
case 'h':
return usage_usart_tx();
case 'd':
if (param_getstr(Cmd, cmdp + 1, string, sizeof(string)) >= sizeof(string)) {
PrintAndLogEx(FAILED, "String too long");
errors = true;
break;
}
cmdp += 2;
break;
default:
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
}
//Validations
if (errors || cmdp == 0) {
usage_usart_tx();
return PM3_EINVARG;
}
char string2[PM3_CMD_DATA_SIZE] = {0};
size_t i2 = 0;
size_t n = strlen(string);
for (size_t i = 0; i < n; i++) {
if ((string[i] == '\\') && (i < n - 1) && (string[i + 1] == '\\')) {
i++;
string2[i2++] = '\\';
continue;
}
if ((string[i] == '\\') && (i < n - 1) && (string[i + 1] == '"')) {
i++;
string2[i2++] = '"';
continue;
}
if (string[i] == '"') {
continue;
}
if ((string[i] == '\\') && (i < n - 1) && (string[i + 1] == 'r')) {
i++;
string2[i2++] = '\r';
continue;
}
if ((string[i] == '\\') && (i < n - 1) && (string[i + 1] == 'n')) {
i++;
string2[i2++] = '\n';
continue;
}
string2[i2++] = string[i];
}
return usart_tx((uint8_t *)string2, strlen(string2));
}
static int CmdUsartRX(const char *Cmd) {
uint8_t cmdp = 0;
bool errors = false;
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
switch (tolower(param_getchar(Cmd, cmdp))) {
case 'h':
return usage_usart_rx();
default:
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
}
//Validations
if (errors) {
usage_usart_rx();
return PM3_EINVARG;
}
uint8_t data[PM3_CMD_DATA_SIZE] = {0x00};
size_t len = 0;
int ret = usart_rx(data, &len);
if (ret != PM3_SUCCESS)
return ret;
PrintAndLogEx(NORMAL, "RX:%.*s", len, data);
return PM3_SUCCESS;
}
static int CmdUsartTXRX(const char *Cmd) {
uint8_t cmdp = 0;
bool errors = false;
char string[PM3_CMD_DATA_SIZE] = {0};
uint32_t waittime = 1000;
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
switch (tolower(param_getchar(Cmd, cmdp))) {
case 'h':
return usage_usart_txrx();
case 'd':
if (param_getstr(Cmd, cmdp + 1, string, sizeof(string)) >= sizeof(string)) {
PrintAndLogEx(FAILED, "String too long");
errors = true;
break;
}
cmdp += 2;
break;
case 't':
waittime = param_get32ex(Cmd, cmdp + 1, 1000, 10);
cmdp += 2;
break;
default:
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
}
//Validations
if (errors || cmdp == 0) {
usage_usart_txrx();
return PM3_EINVARG;
}
char string2[PM3_CMD_DATA_SIZE] = {0};
size_t i2 = 0;
size_t n = strlen(string);
for (size_t i = 0; i < n; i++) {
if ((string[i] == '\\') && (i < n - 1) && (string[i + 1] == '\\')) {
i++;
string2[i2++] = '\\';
continue;
}
if ((string[i] == '\\') && (i < n - 1) && (string[i + 1] == '"')) {
i++;
string2[i2++] = '"';
continue;
}
if (string[i] == '"') {
continue;
}
if ((string[i] == '\\') && (i < n - 1) && (string[i + 1] == 'r')) {
i++;
string2[i2++] = '\r';
continue;
}
if ((string[i] == '\\') && (i < n - 1) && (string[i + 1] == 'n')) {
i++;
string2[i2++] = '\n';
continue;
}
string2[i2++] = string[i];
}
uint8_t data[PM3_CMD_DATA_SIZE] = {0x00};
size_t len = 0;
PrintAndLogEx(NORMAL, "TX (%3u):%.*s", strlen(string2), strlen(string2), string2);
int ret = usart_txrx((uint8_t *)string2, strlen(string2), data, &len, waittime);
if (ret != PM3_SUCCESS)
return ret;
PrintAndLogEx(NORMAL, "RX (%3u):%.*s", len, len, data);
return PM3_SUCCESS;
}
static int CmdUsartTXhex(const char *Cmd) {
int hexlen, len = 0;
uint8_t cmdp = 0;
bool errors = false;
uint8_t data[PM3_CMD_DATA_SIZE] = {0x00};
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
switch (tolower(param_getchar(Cmd, cmdp))) {
case 'h':
return usage_usart_txhex();
case 'd':
if (param_gethex_ex(Cmd, cmdp + 1, data, &hexlen)) {
PrintAndLogEx(ERR, "Error parsing bytes");
return PM3_EINVARG;
}
len = hexlen >> 1;
cmdp += 2;
break;
default:
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
}
//Validations
if (errors || cmdp == 0) {
usage_usart_txhex();
return PM3_EINVARG;
}
return usart_tx(data, len);
}
static int CmdUsartRXhex(const char *Cmd) {
uint8_t cmdp = 0;
bool errors = false;
while (param_getchar(Cmd, cmdp) != 0x00 && !errors) {
switch (tolower(param_getchar(Cmd, cmdp))) {
case 'h':
return usage_usart_rxhex();
default:
PrintAndLogEx(WARNING, "Unknown parameter '%c'", param_getchar(Cmd, cmdp));
errors = true;
break;
}
}
//Validations
if (errors) {
usage_usart_rxhex();
return PM3_EINVARG;
}
uint8_t data[PM3_CMD_DATA_SIZE] = {0x00};
size_t len = 0;
int ret = usart_rx(data, &len);
if (ret != PM3_SUCCESS)
return ret;
print_hex_break(data, len, 32);
return PM3_SUCCESS;
}
static command_t CommandTable[] = {
{"help", CmdHelp, AlwaysAvailable, "This help"},
{"btpin", CmdUsartBtPin, IfPm3FpcUsartHostFromUsb, "Change BT add-on PIN"},
{"btfactory", CmdUsartBtFactory, IfPm3FpcUsartHostFromUsb, "Reset BT add-on to factory settings"},
{"tx", CmdUsartTX, IfPm3FpcUsartDevFromUsb, "Send string over USART"},
{"rx", CmdUsartRX, IfPm3FpcUsartDevFromUsb, "Receive string over USART"},
{"txrx", CmdUsartTXRX, IfPm3FpcUsartDevFromUsb, "Send string over USART and wait for response"},
{"txhex", CmdUsartTXhex, IfPm3FpcUsartDevFromUsb, "Send bytes over USART"},
{"rxhex", CmdUsartRXhex, IfPm3FpcUsartDevFromUsb, "Receive bytes over USART"},
{"config", CmdUsartConfig, IfPm3FpcUsartDevFromUsb, "Configure USART"},
// {"bridge", CmdUsartBridge, IfPm3FpcUsartDevFromUsb, "Bridge USB-CDC & USART"},
{NULL, NULL, NULL, NULL}
};
static int CmdHelp(const char *Cmd) {
(void)Cmd; // Cmd is not used so far
CmdsHelp(CommandTable);
return 0;
}
int CmdUsart(const char *Cmd) {
clearCommandBuffer();
return CmdsParse(CommandTable, Cmd);
}