github/RRG-Proxmark3
1
0
Fork 0
mirror of https://github.com/RfidResearchGroup/proxmark3.git synced 2025-08-21 13:53:55 -07:00
Code Issues Projects Releases Packages Wiki Activity Actions

summer restructuring:

Browse source 
* .h include only the strict minimum for their own parsing
  * this forces all files to include explicitment their needs and not count on far streched dependencies
  * this helps Makefile to rebuild only the minimum
  * according to this rule, most standalone .h are now gone
  * big app.h is gone
  * remove seldom __cplusplus, if c++ happens, everything will have to be done properly anyway
* all unrequired include were removed
* split common/ into common/ (client+arm) and common_arm/ (os+bootloader)
  * bring zlib to common/
  * bring stuff not really/not yet used in common back to armsrc/ or client/
  * bring liblua into client/
  * bring uart into client/
  * move some portions of code around (dbprint, protocols,...)
* rename unused files into *_disabled.[ch] to make it explicit
* rename soft Uarts between 14a, 14b and iclass, so a standalone could use several without clash
* remove PrintAndLogDevice
* move deprecated-hid-flasher from client to tools
* Makefiles
  * treat deps in armsrc/ as in client/
  * client: stop on warning (-Werror), same as for armsrc/

Tested on:

* all standalone modes
* Linux
This commit is contained in:
Philippe Teuwen 2019-08-08 16:57:33 +02:00
commit d19754567d
447 changed files with 2553 additions and 2599 deletions
Download patch file Download diff file Expand all files Collapse all files

13
client/uart/README.md Normal file
View file

@ -0,0 +1,13 @@
# uart
This contains functionality for talking to UART/Serial devices on different platforms. The official client will build either `uart_posix.c` and `uart_win32.c`. Build targets for these files are contained in `client/Makefile`.
If you want to implement support for other platforms, you need to implement the methods provided in `uart.h`.
## Implementing a new driver
Each driver is called with a string, typically containing a path or other reference to a serial port on the host. The methods outlined in `uart.h` need to be implemented.
The hardware uses `common/usb_cdc.c` to implement a USB CDC endpoint exposed by the Atmel MCU.

94
client/uart/uart.h Normal file
View file

@ -0,0 +1,94 @@
/*
* Generic uart / rs232/ serial port library
*
* Copyright (c) 2013, Roel Verdult
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @file uart.h
*/
#ifndef _UART_H_
#define _UART_H_
#include "common.h"
/* serial_port is declared as a void*, which you should cast to whatever type
* makes sense to your connection method. Both the posix and win32
* implementations define their own structs in place.
*/
typedef void *serial_port;
/* Returned by uart_open if the serial port specified was invalid.
*/
#define INVALID_SERIAL_PORT (void*)(~1)
/* Returned by uart_open if the serial port specified is in use by another
* process.
*/
#define CLAIMED_SERIAL_PORT (void*)(~2)
/* Given a user-specified port name, connect to the port and return a structure
* used for future references to that port.
*
* On errors, this method returns INVALID_SERIAL_PORT or CLAIMED_SERIAL_PORT.
*/
serial_port uart_open(const char *pcPortName, uint32_t speed);
/* Closes the given port.
*/
void uart_close(const serial_port sp);
/* Reads from the given serial port for up to 30ms.
* pbtRx: A pointer to a buffer for the returned data to be written to.
* pszMaxRxLen: The maximum data size we want to be sent.
* pszRxLen: The number of bytes that we were actually sent.
*
* Returns TRUE if any data was fetched, even if it was less than pszMaxRxLen.
*
* Returns FALSE if there was an error reading from the device. Note that a
* partial read may have completed into the buffer by the corresponding
* implementation, so pszRxLen should be checked to see if any data was written.
*/
int uart_receive(const serial_port sp, uint8_t *pbtRx, uint32_t pszMaxRxLen, uint32_t *pszRxLen);
/* Sends a buffer to a given serial port.
* pbtTx: A pointer to a buffer containing the data to send.
* len: The amount of data to be sent.
*/
int uart_send(const serial_port sp, const uint8_t *pbtTx, const uint32_t len);
/* Sets the current speed of the serial port, in baud.
*/
bool uart_set_speed(serial_port sp, const uint32_t uiPortSpeed);
/* Gets the current speed of the serial port, in baud.
*/
uint32_t uart_get_speed(const serial_port sp);
/* Reconfigure timeouts
*/
int uart_reconfigure_timeouts(uint32_t value);
#endif // _UART_H_

527
client/uart/uart_posix.c Normal file
View file

@ -0,0 +1,527 @@
/*
* Generic uart / rs232/ serial port library
*
* Copyright (c) 2013, Roel Verdult
* Copyright (c) 2018 Google
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @file uart_posix.c
*
* This version of the library has functionality removed which was not used by
* proxmark3 project.
*/
// Test if we are dealing with posix operating systems
#ifndef _WIN32
#define _DEFAULT_SOURCE
#include "uart.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <termios.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <netinet/tcp.h>
#include <netdb.h>
#include "comms.h"
// Taken from https://github.com/unbit/uwsgi/commit/b608eb1772641d525bfde268fe9d6d8d0d5efde7
#ifndef SOL_TCP
# define SOL_TCP IPPROTO_TCP
#endif
typedef struct termios term_info;
typedef struct {
int fd; // Serial port file descriptor
term_info tiOld; // Terminal info before using the port
term_info tiNew; // Terminal info during the transaction
} serial_port_unix;
// see pm3_cmd.h
struct timeval timeout = {
.tv_sec = 0, // 0 second
.tv_usec = UART_FPC_CLIENT_RX_TIMEOUT_MS * 1000
};
uint32_t newtimeout_value = 0;
bool newtimeout_pending = false;
int uart_reconfigure_timeouts(uint32_t value) {
newtimeout_value = value;
newtimeout_pending = true;
return PM3_SUCCESS;
}
serial_port uart_open(const char *pcPortName, uint32_t speed) {
serial_port_unix *sp = calloc(sizeof(serial_port_unix), sizeof(uint8_t));
if (sp == 0) return INVALID_SERIAL_PORT;
// init timeouts
timeout.tv_usec = UART_FPC_CLIENT_RX_TIMEOUT_MS * 1000;
if (memcmp(pcPortName, "tcp:", 4) == 0) {
struct addrinfo *addr = NULL, *rp;
char *addrstr = strdup(pcPortName + 4);
if (addrstr == NULL) {
printf("Error: strdup\n");
free(sp);
return INVALID_SERIAL_PORT;
}
timeout.tv_usec = UART_TCP_CLIENT_RX_TIMEOUT_MS * 1000;
char *colon = strrchr(addrstr, ':');
const char *portstr;
if (colon) {
portstr = colon + 1;
*colon = '\0';
} else {
portstr = "7901";
}
struct addrinfo info;
memset(&info, 0, sizeof(info));
info.ai_socktype = SOCK_STREAM;
int s = getaddrinfo(addrstr, portstr, &info, &addr);
if (s != 0) {
printf("Error: getaddrinfo: %s\n", gai_strerror(s));
freeaddrinfo(addr);
free(addrstr);
free(sp);
return INVALID_SERIAL_PORT;
}
int sfd;
for (rp = addr; rp != NULL; rp = rp->ai_next) {
sfd = socket(rp->ai_family, rp->ai_socktype, rp->ai_protocol);
if (sfd == -1)
continue;
if (connect(sfd, rp->ai_addr, rp->ai_addrlen) != -1)
break;
close(sfd);
}
if (rp == NULL) { /* No address succeeded */
printf("Error: Could not connect\n");
freeaddrinfo(addr);
free(addrstr);
free(sp);
return INVALID_SERIAL_PORT;
}
freeaddrinfo(addr);
free(addrstr);
sp->fd = sfd;
int one = 1;
int res = setsockopt(sp->fd, SOL_TCP, TCP_NODELAY, &one, sizeof(one));
if (res != 0) {
free(sp);
return INVALID_SERIAL_PORT;
}
return sp;
}
sp->fd = open(pcPortName, O_RDWR | O_NOCTTY | O_NDELAY | O_NONBLOCK);
if (sp->fd == -1) {
uart_close(sp);
return INVALID_SERIAL_PORT;
}
// Finally figured out a way to claim a serial port interface under unix
// We just try to set a (advisory) lock on the file descriptor
struct flock fl;
fl.l_type = F_WRLCK;
fl.l_whence = SEEK_SET;
fl.l_start = 0;
fl.l_len = 0;
fl.l_pid = getpid();
// Does the system allows us to place a lock on this file descriptor
if (fcntl(sp->fd, F_SETLK, &fl) == -1) {
// A conflicting lock is held by another process
free(sp);
return CLAIMED_SERIAL_PORT;
}
// Try to retrieve the old (current) terminal info struct
if (tcgetattr(sp->fd, &sp->tiOld) == -1) {
uart_close(sp);
return INVALID_SERIAL_PORT;
}
// Duplicate the (old) terminal info struct
sp->tiNew = sp->tiOld;
// Configure the serial port
sp->tiNew.c_cflag = CS8 | CLOCAL | CREAD;
sp->tiNew.c_iflag = IGNPAR;
sp->tiNew.c_oflag = 0;
sp->tiNew.c_lflag = 0;
// Block until n bytes are received
sp->tiNew.c_cc[VMIN] = 0;
// Block until a timer expires (n * 100 mSec.)
sp->tiNew.c_cc[VTIME] = 0;
// Try to set the new terminal info struct
if (tcsetattr(sp->fd, TCSANOW, &sp->tiNew) == -1) {
uart_close(sp);
return INVALID_SERIAL_PORT;
}
// Flush all lingering data that may exist
tcflush(sp->fd, TCIOFLUSH);
if (!uart_set_speed(sp, speed)) {
// try fallback automatically
speed = 115200;
if (!uart_set_speed(sp, speed)) {
uart_close(sp);
printf("[!] UART error while setting baudrate\n");
return INVALID_SERIAL_PORT;
}
}
conn.uart_speed = uart_get_speed(sp);
return sp;
}
void uart_close(const serial_port sp) {
serial_port_unix *spu = (serial_port_unix *)sp;
tcflush(spu->fd, TCIOFLUSH);
tcsetattr(spu->fd, TCSANOW, &(spu->tiOld));
struct flock fl;
fl.l_type = F_UNLCK;
fl.l_whence = SEEK_SET;
fl.l_start = 0;
fl.l_len = 0;
fl.l_pid = getpid();
// Does the system allows us to place a lock on this file descriptor
int err = fcntl(spu->fd, F_SETLK, &fl);
if (err == -1) {
//silent error message as it can be called from uart_open failing modes, e.g. when waiting for port to appear
//printf("[!] UART error while closing port\n");
}
close(spu->fd);
free(sp);
}
int uart_receive(const serial_port sp, uint8_t *pbtRx, uint32_t pszMaxRxLen, uint32_t *pszRxLen) {
uint32_t byteCount; // FIONREAD returns size on 32b
fd_set rfds;
struct timeval tv;
if (newtimeout_pending) {
timeout.tv_usec = newtimeout_value * 1000;
newtimeout_pending = false;
}
// Reset the output count
*pszRxLen = 0;
do {
// Reset file descriptor
FD_ZERO(&rfds);
FD_SET(((serial_port_unix *)sp)->fd, &rfds);
tv = timeout;
int res = select(((serial_port_unix *)sp)->fd + 1, &rfds, NULL, NULL, &tv);
// Read error
if (res < 0) {
return PM3_EIO;
}
// Read time-out
if (res == 0) {
if (*pszRxLen == 0) {
// We received no data
return PM3_ENODATA;
} else {
// We received some data, but nothing more is available
return PM3_SUCCESS;
}
}
// Retrieve the count of the incoming bytes
res = ioctl(((serial_port_unix *)sp)->fd, FIONREAD, &byteCount);
// printf("UART:: RX ioctl res %d byteCount %u\n", res, byteCount);
if (res < 0) return PM3_ENOTTY;
// Cap the number of bytes, so we don't overrun the buffer
if (pszMaxRxLen - (*pszRxLen) < byteCount) {
// printf("UART:: RX prevent overrun (have %u, need %u)\n", pszMaxRxLen - (*pszRxLen), byteCount);
byteCount = pszMaxRxLen - (*pszRxLen);
}
// There is something available, read the data
res = read(((serial_port_unix *)sp)->fd, pbtRx + (*pszRxLen), byteCount);
// Stop if the OS has some troubles reading the data
if (res <= 0) {
return PM3_EIO;
}
*pszRxLen += res;
if (*pszRxLen == pszMaxRxLen) {
// We have all the data we wanted.
return PM3_SUCCESS;
}
} while (byteCount);
return PM3_SUCCESS;
}
int uart_send(const serial_port sp, const uint8_t *pbtTx, const uint32_t len) {
uint32_t pos = 0;
fd_set rfds;
struct timeval tv;
while (pos < len) {
// Reset file descriptor
FD_ZERO(&rfds);
FD_SET(((serial_port_unix *)sp)->fd, &rfds);
tv = timeout;
int res = select(((serial_port_unix *)sp)->fd + 1, NULL, &rfds, NULL, &tv);
// Write error
if (res < 0) {
printf("UART:: write error (%d)\n", res);
return PM3_ENOTTY;
}
// Write time-out
if (res == 0) {
printf("UART:: write time-out\n");
return PM3_ETIMEOUT;
}
// Send away the bytes
res = write(((serial_port_unix *)sp)->fd, pbtTx + pos, len - pos);
// Stop if the OS has some troubles sending the data
if (res <= 0)
return PM3_EIO;
pos += res;
}
return PM3_SUCCESS;
}
bool uart_set_speed(serial_port sp, const uint32_t uiPortSpeed) {
const serial_port_unix *spu = (serial_port_unix *)sp;
speed_t stPortSpeed;
switch (uiPortSpeed) {
case 0:
stPortSpeed = B0;
break;
case 50:
stPortSpeed = B50;
break;
case 75:
stPortSpeed = B75;
break;
case 110:
stPortSpeed = B110;
break;
case 134:
stPortSpeed = B134;
break;
case 150:
stPortSpeed = B150;
break;
case 300:
stPortSpeed = B300;
break;
case 600:
stPortSpeed = B600;
break;
case 1200:
stPortSpeed = B1200;
break;
case 1800:
stPortSpeed = B1800;
break;
case 2400:
stPortSpeed = B2400;
break;
case 4800:
stPortSpeed = B4800;
break;
case 9600:
stPortSpeed = B9600;
break;
case 19200:
stPortSpeed = B19200;
break;
case 38400:
stPortSpeed = B38400;
break;
# ifdef B57600
case 57600:
stPortSpeed = B57600;
break;
# endif
# ifdef B115200
case 115200:
stPortSpeed = B115200;
break;
# endif
# ifdef B230400
case 230400:
stPortSpeed = B230400;
break;
# endif
# ifdef B460800
case 460800:
stPortSpeed = B460800;
break;
# endif
# ifdef B921600
case 921600:
stPortSpeed = B921600;
break;
# endif
# ifdef B1382400
case 1382400:
stPortSpeed = B1382400;
break;
# endif
default:
return false;
};
struct termios ti;
if (tcgetattr(spu->fd, &ti) == -1)
return false;
// Set port speed (Input and Output)
cfsetispeed(&ti, stPortSpeed);
cfsetospeed(&ti, stPortSpeed);
bool result = tcsetattr(spu->fd, TCSANOW, &ti) != -1;
if (result)
conn.uart_speed = uiPortSpeed;
return result;
}
uint32_t uart_get_speed(const serial_port sp) {
struct termios ti;
uint32_t uiPortSpeed;
const serial_port_unix *spu = (serial_port_unix *)sp;
if (tcgetattr(spu->fd, &ti) == -1)
return 0;
// Set port speed (Input)
speed_t stPortSpeed = cfgetispeed(&ti);
switch (stPortSpeed) {
case B0:
uiPortSpeed = 0;
break;
case B50:
uiPortSpeed = 50;
break;
case B75:
uiPortSpeed = 75;
break;
case B110:
uiPortSpeed = 110;
break;
case B134:
uiPortSpeed = 134;
break;
case B150:
uiPortSpeed = 150;
break;
case B300:
uiPortSpeed = 300;
break;
case B600:
uiPortSpeed = 600;
break;
case B1200:
uiPortSpeed = 1200;
break;
case B1800:
uiPortSpeed = 1800;
break;
case B2400:
uiPortSpeed = 2400;
break;
case B4800:
uiPortSpeed = 4800;
break;
case B9600:
uiPortSpeed = 9600;
break;
case B19200:
uiPortSpeed = 19200;
break;
case B38400:
uiPortSpeed = 38400;
break;
# ifdef B57600
case B57600:
uiPortSpeed = 57600;
break;
# endif
# ifdef B115200
case B115200:
uiPortSpeed = 115200;
break;
# endif
# ifdef B230400
case B230400:
uiPortSpeed = 230400;
break;
# endif
# ifdef B460800
case B460800:
uiPortSpeed = 460800;
break;
# endif
# ifdef B921600
case B921600:
uiPortSpeed = 921600;
break;
# endif
default:
return 0;
};
return uiPortSpeed;
}
#endif

212
client/uart/uart_win32.c Normal file
View file

@ -0,0 +1,212 @@
/*
* Generic uart / rs232/ serial port library
*
* Copyright (c) 2013, Roel Verdult
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the copyright holders nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* @file uart_win32.c
*
* Note: the win32 version of this library has also been seen under the GPLv3+
* license as part of the libnfc project, which appears to have additional
* contributors.
*
* This version of the library has functionality removed which was not used by
* proxmark3 project.
*/
#include "uart.h"
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include "comms.h"
// The windows serial port implementation
#ifdef _WIN32
#include <windows.h>
typedef struct {
HANDLE hPort; // Serial port handle
DCB dcb; // Device control settings
COMMTIMEOUTS ct; // Serial port time-out configuration
} serial_port_windows;
uint32_t newtimeout_value = 0;
bool newtimeout_pending = false;
int uart_reconfigure_timeouts(uint32_t value) {
newtimeout_value = value;
newtimeout_pending = true;
return PM3_SUCCESS;
}
static int uart_reconfigure_timeouts_polling(serial_port sp) {
if (newtimeout_pending == false)
return PM3_SUCCESS;
newtimeout_pending = false;
serial_port_windows *spw;
spw = (serial_port_windows *)sp;
spw->ct.ReadIntervalTimeout = newtimeout_value;
spw->ct.ReadTotalTimeoutMultiplier = 0;
spw->ct.ReadTotalTimeoutConstant = newtimeout_value;
spw->ct.WriteTotalTimeoutMultiplier = newtimeout_value;
spw->ct.WriteTotalTimeoutConstant = 0;
if (!SetCommTimeouts(spw->hPort, &spw->ct)) {
uart_close(spw);
return PM3_EIO;
}
PurgeComm(spw->hPort, PURGE_RXABORT | PURGE_RXCLEAR);
return PM3_SUCCESS;
}
serial_port uart_open(const char *pcPortName, uint32_t speed) {
char acPortName[255] = {0};
serial_port_windows *sp = calloc(sizeof(serial_port_windows), sizeof(uint8_t));
if (sp == 0) {
printf("[!] UART failed to allocate memory\n");
return INVALID_SERIAL_PORT;
}
// Copy the input "com?" to "\\.\COM?" format
sprintf(acPortName, "\\\\.\\%s", pcPortName);
_strupr(acPortName);
// Try to open the serial port
// r/w, none-share comport, no security, existing, no overlapping, no templates
sp->hPort = CreateFileA(acPortName, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
if (sp->hPort == INVALID_HANDLE_VALUE) {
uart_close(sp);
return INVALID_SERIAL_PORT;
}
// Prepare the device control
// doesn't matter since PM3 device ignors this CDC command: set_line_coding in usb_cdc.c
memset(&sp->dcb, 0, sizeof(DCB));
sp->dcb.DCBlength = sizeof(DCB);
if (!BuildCommDCBA("baud=115200 parity=N data=8 stop=1", &sp->dcb)) {
uart_close(sp);
printf("[!] UART error cdc setup\n");
return INVALID_SERIAL_PORT;
}
// Update the active serial port
if (!SetCommState(sp->hPort, &sp->dcb)) {
uart_close(sp);
printf("[!] UART error while setting com state\n");
return INVALID_SERIAL_PORT;
}
uart_reconfigure_timeouts(UART_FPC_CLIENT_RX_TIMEOUT_MS);
uart_reconfigure_timeouts_polling(sp);
if (!uart_set_speed(sp, speed)) {
// try fallback automatically
speed = 115200;
if (!uart_set_speed(sp, speed)) {
uart_close(sp);
printf("[!] UART error while setting baudrate\n");
return INVALID_SERIAL_PORT;
}
}
conn.uart_speed = uart_get_speed(sp);
return sp;
}
void uart_close(const serial_port sp) {
if (((serial_port_windows *)sp)->hPort != INVALID_HANDLE_VALUE)
CloseHandle(((serial_port_windows *)sp)->hPort);
free(sp);
}
bool uart_set_speed(serial_port sp, const uint32_t uiPortSpeed) {
serial_port_windows *spw;
// Set port speed (Input and Output)
switch (uiPortSpeed) {
case 9600:
case 19200:
case 38400:
case 57600:
case 115200:
case 230400:
case 460800:
case 921600:
case 1382400:
break;
default:
return false;
};
spw = (serial_port_windows *)sp;
spw->dcb.BaudRate = uiPortSpeed;
bool result = SetCommState(spw->hPort, &spw->dcb);
PurgeComm(spw->hPort, PURGE_RXABORT | PURGE_RXCLEAR);
if (result)
conn.uart_speed = uiPortSpeed;
return result;
}
uint32_t uart_get_speed(const serial_port sp) {
const serial_port_windows *spw = (serial_port_windows *)sp;
if (!GetCommState(spw->hPort, (serial_port) & spw->dcb))
return spw->dcb.BaudRate;
return 0;
}
int uart_receive(const serial_port sp, uint8_t *pbtRx, uint32_t pszMaxRxLen, uint32_t *pszRxLen) {
uart_reconfigure_timeouts_polling(sp);
int res = ReadFile(((serial_port_windows *)sp)->hPort, pbtRx, pszMaxRxLen, (LPDWORD)pszRxLen, NULL);
if (res)
return PM3_SUCCESS;
int errorcode = GetLastError();
if (res == 0 && errorcode == 2) {
return PM3_EIO;
}
return PM3_ENOTTY;
}
int uart_send(const serial_port sp, const uint8_t *p_tx, const uint32_t len) {
DWORD txlen = 0;
int res = WriteFile(((serial_port_windows *)sp)->hPort, p_tx, len, &txlen, NULL);
if (res)
return PM3_SUCCESS;
int errorcode = GetLastError();
if (res == 0 && errorcode == 2) {
return PM3_EIO;
}
return PM3_ENOTTY;
}
#endif