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proxmark3/client/ui.c
iceman1001 74f96be6be textual
2019-08-29 10:46:57 +02:00

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//-----------------------------------------------------------------------------
// Copyright (C) 2009 Michael Gernoth <michael at gernoth.net>
// Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
//
// 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.
//-----------------------------------------------------------------------------
// UI utilities
//-----------------------------------------------------------------------------
/* Ensure strtok_r is available even with -std=c99; must be included before
*/
#if !defined(_WIN32)
#define _POSIX_C_SOURCE 200112L
#endif
#include "ui.h"
#include "commonutil.h" // ARRAYLEN
#include <stdio.h> // for Mingw readline
#include <stdarg.h>
#include <stdlib.h>
#include <readline/readline.h>
#include <complex.h>
#include "util.h"
#include "proxmark3.h" // PROXLOG
#include "fileutils.h"
#include "pm3_cmd.h"
#ifdef _WIN32
# include <direct.h> // _mkdir
#endif
#include <time.h>
session_arg_t session;
double CursorScaleFactor = 1;
int PlotGridX = 0, PlotGridY = 0, PlotGridXdefault = 64, PlotGridYdefault = 64;
uint32_t CursorCPos = 0, CursorDPos = 0;
bool flushAfterWrite = 0;
int GridOffset = 0;
bool GridLocked = false;
bool showDemod = true;
pthread_mutex_t print_lock = PTHREAD_MUTEX_INITIALIZER;
static void fPrintAndLog(FILE *stream, const char *fmt, ...);
// needed by flasher, so let's put it here instead of fileutils.c
int searchHomeFilePath(char **foundpath, const char *filename, bool create_home) {
if (foundpath == NULL)
return PM3_EINVARG;
char *user_path = getenv("HOME");
if (user_path == NULL) {
fprintf(stderr, "Could not retrieve $HOME from the environment\n");
return PM3_EFILE;
}
char *path = calloc(strlen(user_path) + strlen(PM3_USER_DIRECTORY) + 1, sizeof(char));
if (path == NULL)
return PM3_EMALLOC;
strcpy(path, user_path);
strcat(path, PM3_USER_DIRECTORY);
int result;
#ifdef _WIN32
struct _stat st;
// Mingw _stat fails if path ends with /, so let's use a stripped path
if (path[strlen(path)-1]=='/') {
path[strlen(path)-1]='\0';
result = _stat(path, &st);
path[strlen(path)]='/';
} else {
result = _stat(path, &st);
}
#else
struct stat st;
result = stat(path, &st);
#endif
if ((result != 0) && create_home) {
#ifdef _WIN32
if (_mkdir(path)) {
#else
if (mkdir(path, 0700)) {
#endif
fprintf(stderr, "Could not create user directory %s\n", path);
free(path);
return PM3_EFILE;
}
}
if (filename == NULL) {
*foundpath = path;
return PM3_SUCCESS;
}
path = realloc(path, (strlen(user_path) + strlen(PM3_USER_DIRECTORY) + strlen(filename) + 1) * sizeof(char));
strcat(path, filename);
*foundpath = path;
return PM3_SUCCESS;
}
void PrintAndLogOptions(const char *str[][2], size_t size, size_t space) {
char buff[2000] = "Options:\n";
char format[2000] = "";
size_t counts[2] = {0, 0};
for (size_t i = 0; i < size; i++)
for (size_t j = 0 ; j < 2 ; j++)
if (counts[j] < strlen(str[i][j])) {
counts[j] = strlen(str[i][j]);
}
for (size_t i = 0; i < size; i++) {
for (size_t j = 0; j < 2; j++) {
if (j == 0)
snprintf(format, sizeof(format), "%%%zus%%%zus", space, counts[j]);
else
snprintf(format, sizeof(format), "%%%zus%%-%zus", space, counts[j]);
snprintf(buff + strlen(buff), sizeof(buff) - strlen(buff), format, " ", str[i][j]);
}
if (i < size - 1)
strncat(buff, "\n", sizeof(buff) - strlen(buff) - 1);
}
PrintAndLogEx(NORMAL, "%s", buff);
}
uint8_t PrintAndLogEx_spinidx = 0;
void PrintAndLogEx(logLevel_t level, const char *fmt, ...) {
// skip debug messages if client debugging is turned off i.e. 'DATA SETDEBUG 0'
if (g_debugMode == 0 && level == DEBUG)
return;
char prefix[20] = {0};
char buffer[MAX_PRINT_BUFFER] = {0};
char buffer2[MAX_PRINT_BUFFER + 20] = {0};
char *token = NULL;
char *tmp_ptr = NULL;
FILE *stream = stdout;
char *spinner[] = {_YELLOW_("[\\]"), _YELLOW_("[|]"), _YELLOW_("[/]"), _YELLOW_("[-]")};
switch (level) {
case ERR:
strncpy(prefix, _RED_("[!!]"), sizeof(prefix) - 1);
stream = stderr;
break;
case FAILED:
strncpy(prefix, _RED_("[-]"), sizeof(prefix) - 1);
break;
case DEBUG:
strncpy(prefix, _BLUE_("[#]"), sizeof(prefix) - 1);
break;
case SUCCESS:
strncpy(prefix, _GREEN_("[+]"), sizeof(prefix) - 1);
break;
case WARNING:
strncpy(prefix, _CYAN_("[!]"), sizeof(prefix) - 1);
break;
case INFO:
strncpy(prefix, _YELLOW_("[=]"), sizeof(prefix) - 1);
break;
case INPLACE:
strncpy(prefix, spinner[PrintAndLogEx_spinidx], sizeof(prefix) - 1);
PrintAndLogEx_spinidx++;
if (PrintAndLogEx_spinidx == ARRAYLEN(spinner))
PrintAndLogEx_spinidx = 0;
break;
case NORMAL:
// no prefixes for normal
break;
}
va_list args;
va_start(args, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, args);
va_end(args);
// no prefixes for normal & inplace
if (level == NORMAL) {
fPrintAndLog(stream, "%s", buffer);
return;
}
if (strchr(buffer, '\n')) {
const char delim[2] = "\n";
// line starts with newline
if (buffer[0] == '\n')
fPrintAndLog(stream, "");
token = strtok_r(buffer, delim, &tmp_ptr);
while (token != NULL) {
size_t size = strlen(buffer2);
if (strlen(token))
snprintf(buffer2 + size, sizeof(buffer2) - size, "%s%s\n", prefix, token);
else
snprintf(buffer2 + size, sizeof(buffer2) - size, "\n");
token = strtok_r(NULL, delim, &tmp_ptr);
}
fPrintAndLog(stream, "%s", buffer2);
} else {
snprintf(buffer2, sizeof(buffer2), "%s%s", prefix, buffer);
if (level == INPLACE) {
char buffer3[MAX_PRINT_BUFFER + 20] = {0};
memcpy_filter_ansi(buffer3, buffer2, sizeof(buffer2), !session.supports_colors);
fprintf(stream, "\r%s", buffer3);
fflush(stream);
} else {
fPrintAndLog(stream, "%s", buffer2);
}
}
}
static void fPrintAndLog(FILE *stream, const char *fmt, ...) {
char *saved_line;
int saved_point;
va_list argptr;
static FILE *logfile = NULL;
static int logging = 1;
char buffer[MAX_PRINT_BUFFER] = {0};
char buffer2[MAX_PRINT_BUFFER] = {0};
// lock this section to avoid interlacing prints from different threads
pthread_mutex_lock(&print_lock);
if (logging && !logfile) {
char *my_logfile_path = NULL;
char filename[40];
struct tm *timenow;
time_t now = time(NULL);
timenow = gmtime(&now);
strftime(filename, sizeof(filename), PROXLOG, timenow);
if (searchHomeFilePath(&my_logfile_path, filename, true) != PM3_SUCCESS) {
fprintf(stderr, "[-] Logging disabled!\n\n");
my_logfile_path = NULL;
logging = 0;
} else {
logfile = fopen(my_logfile_path, "a");
if (logfile == NULL) {
fprintf(stderr, "[-] Can't open logfile %s, logging disabled!\n", my_logfile_path);
logging = 0;
} else {
printf("[=] Session log %s\n", my_logfile_path);
}
free(my_logfile_path);
}
}
// If there is an incoming message from the hardware (eg: lf hid read) in
// the background (while the prompt is displayed and accepting user input),
// stash the prompt and bring it back later.
#ifdef RL_STATE_READCMD
// We are using GNU readline. libedit (OSX) doesn't support this flag.
int need_hack = (rl_readline_state & RL_STATE_READCMD) > 0;
if (need_hack) {
saved_point = rl_point;
saved_line = rl_copy_text(0, rl_end);
rl_save_prompt();
rl_replace_line("", 0);
rl_redisplay();
}
#endif
va_start(argptr, fmt);
vsnprintf(buffer, sizeof(buffer), fmt, argptr);
va_end(argptr);
bool filter_ansi = !session.supports_colors;
memcpy_filter_ansi(buffer2, buffer, sizeof(buffer), filter_ansi);
fprintf(stream, "%s", buffer2);
fprintf(stream, " "); // cleaning prompt
fprintf(stream, "\n");
#ifdef RL_STATE_READCMD
// We are using GNU readline. libedit (OSX) doesn't support this flag.
if (need_hack) {
rl_restore_prompt();
rl_replace_line(saved_line, 0);
rl_point = saved_point;
rl_redisplay();
free(saved_line);
}
#endif
if (logging && logfile) {
if (filter_ansi) { // already done
fprintf(logfile, "%s\n", buffer2);
} else {
memcpy_filter_ansi(buffer, buffer2, sizeof(buffer2), true);
fprintf(logfile, "%s\n", buffer);
}
fflush(logfile);
}
if (flushAfterWrite)
fflush(stdout);
//release lock
pthread_mutex_unlock(&print_lock);
}
void SetFlushAfterWrite(bool value) {
flushAfterWrite = value;
}
void memcpy_filter_ansi(void *dest, const void *src, size_t n, bool filter) {
if (filter) {
// Filter out ANSI sequences on these OS
uint8_t *rdest = (uint8_t *)dest;
uint8_t *rsrc = (uint8_t *)src;
uint16_t si = 0;
for (uint16_t i = 0; i < n; i++) {
if ((i < n - 1)
&& (rsrc[i] == '\x1b')
&& (rsrc[i + 1] >= 0x40)
&& (rsrc[i + 1] <= 0x5F)) { // entering ANSI sequence
i++;
if ((i < n - 1) && (rsrc[i] == '[')) { // entering CSI sequence
i++;
while ((i < n - 1) && (rsrc[i] >= 0x30) && (rsrc[i] <= 0x3F)) { // parameter bytes
i++;
}
while ((i < n - 1) && (rsrc[i] >= 0x20) && (rsrc[i] <= 0x2F)) { // intermediate bytes
i++;
}
if ((rsrc[i] >= 0x40) && (rsrc[i] <= 0x7F)) { // final byte
continue;
}
} else {
continue;
}
}
rdest[si++] = rsrc[i];
}
} else {
memcpy(dest, src, n);
}
}
void iceIIR_Butterworth(int *data, const size_t len) {
int *output = (int *) calloc(sizeof(int) * len, sizeof(uint8_t));
if (!output) return;
// clear mem
memset(output, 0x00, len);
size_t adjustedLen = len;
float fc = 0.1125f; // center frequency
// create very simple low-pass filter to remove images (2nd-order Butterworth)
float complex iir_buf[3] = {0, 0, 0};
float b[3] = {0.003621681514929, 0.007243363029857, 0.003621681514929};
float a[3] = {1.000000000000000, -1.822694925196308, 0.837181651256023};
for (size_t i = 0; i < adjustedLen; ++i) {
float sample = data[i]; // input sample read from array
float complex x_prime = 1.0f; // save sample for estimating frequency
float complex x;
// remove DC offset and mix to complex baseband
x = (sample - 127.5f) * cexpf(_Complex_I * 2 * M_PI * fc * i);
// apply low-pass filter, removing spectral image (IIR using direct-form II)
iir_buf[2] = iir_buf[1];
iir_buf[1] = iir_buf[0];
iir_buf[0] = x - a[1] * iir_buf[1] - a[2] * iir_buf[2];
x = b[0] * iir_buf[0] +
b[1] * iir_buf[1] +
b[2] * iir_buf[2];
// compute instantaneous frequency by looking at phase difference
// between adjacent samples
float freq = cargf(x * conjf(x_prime));
x_prime = x; // retain this sample for next iteration
output[i] = (freq > 0) ? 127 : -127;
}
// show data
//memcpy(data, output, adjustedLen);
for (size_t j = 0; j < adjustedLen; ++j)
data[j] = output[j];
free(output);
}
void iceSimple_Filter(int *data, const size_t len, uint8_t k) {
// ref: http://www.edn.com/design/systems-design/4320010/A-simple-software-lowpass-filter-suits-embedded-system-applications
// parameter K
#define FILTER_SHIFT 4
int32_t filter_reg = 0;
int8_t shift = (k <= 8) ? k : FILTER_SHIFT;
for (size_t i = 0; i < len; ++i) {
// Update filter with current sample
filter_reg = filter_reg - (filter_reg >> shift) + data[i];
// Scale output for unity gain
data[i] = filter_reg >> shift;
}
}
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