add force_align_arg_pointer attribute to all callback functions
[proxmark3-svn] / client / proxmark3.c
1 //-----------------------------------------------------------------------------
2 // Copyright (C) 2009 Michael Gernoth <michael at gernoth.net>
3 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
4 //
5 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
6 // at your option, any later version. See the LICENSE.txt file for the text of
7 // the license.
8 //-----------------------------------------------------------------------------
9 // Main binary
10 //-----------------------------------------------------------------------------
11
12 #include <stdio.h>
13 #include <stdlib.h>
14 #include <string.h>
15 #include <pthread.h>
16 #include <unistd.h>
17 #include <readline/readline.h>
18 #include <readline/history.h>
19
20 #include "proxmark3.h"
21 #include "util_posix.h"
22 #include "proxgui.h"
23 #include "cmdmain.h"
24 #include "uart.h"
25 #include "ui.h"
26 #include "util.h"
27 #include "cmdparser.h"
28 #include "cmdhw.h"
29 #include "whereami.h"
30
31 #ifdef _WIN32
32 #define SERIAL_PORT_H "com3"
33 #else
34 #define SERIAL_PORT_H "/dev/ttyACM0"
35 #endif
36
37 // a global mutex to prevent interlaced printing from different threads
38 pthread_mutex_t print_lock;
39
40 static serial_port sp;
41 static UsbCommand txcmd;
42 volatile static bool txcmd_pending = false;
43
44 void SendCommand(UsbCommand *c) {
45 #if 0
46 printf("Sending %d bytes\n", sizeof(UsbCommand));
47 #endif
48
49 if (offline) {
50 PrintAndLog("Sending bytes to proxmark failed - offline");
51 return;
52 }
53 /**
54 The while-loop below causes hangups at times, when the pm3 unit is unresponsive
55 or disconnected. The main console thread is alive, but comm thread just spins here.
56 Not good.../holiman
57 **/
58 while(txcmd_pending);
59 txcmd = *c;
60 txcmd_pending = true;
61 }
62
63 struct receiver_arg {
64 int run;
65 };
66
67 byte_t rx[sizeof(UsbCommand)];
68 byte_t* prx = rx;
69
70
71 static void
72 #ifdef __has_attribute
73 #if __has_attribute(force_align_arg_pointer)
74 __attribute__((force_align_arg_pointer))
75 #endif
76 #endif
77 *uart_receiver(void *targ) {
78 struct receiver_arg *arg = (struct receiver_arg*)targ;
79 size_t rxlen;
80
81 while (arg->run) {
82 rxlen = 0;
83 if (uart_receive(sp, prx, sizeof(UsbCommand) - (prx-rx), &rxlen) && rxlen) {
84 prx += rxlen;
85 if (prx-rx < sizeof(UsbCommand)) {
86 continue;
87 }
88 UsbCommandReceived((UsbCommand*)rx);
89 }
90 prx = rx;
91
92 if(txcmd_pending) {
93 if (!uart_send(sp, (byte_t*) &txcmd, sizeof(UsbCommand))) {
94 PrintAndLog("Sending bytes to proxmark failed");
95 }
96 txcmd_pending = false;
97 }
98 }
99
100 pthread_exit(NULL);
101 return NULL;
102 }
103
104
105 void
106 #ifdef __has_attribute
107 #if __has_attribute(force_align_arg_pointer)
108 __attribute__((force_align_arg_pointer))
109 #endif
110 #endif
111 main_loop(char *script_cmds_file, char *script_cmd, bool usb_present) {
112 struct receiver_arg rarg;
113 char *cmd = NULL;
114 pthread_t reader_thread;
115 bool execCommand = (script_cmd != NULL);
116 bool stdinOnPipe = !isatty(STDIN_FILENO);
117
118 if (usb_present) {
119 rarg.run = 1;
120 pthread_create(&reader_thread, NULL, &uart_receiver, &rarg);
121 // cache Version information now:
122 CmdVersion(NULL);
123 }
124
125 // file with script
126 FILE *script_file = NULL;
127 char script_cmd_buf[256] = {0}; // iceman, needs lua script the same file_path_buffer as the rest
128
129 if (script_cmds_file) {
130 script_file = fopen(script_cmds_file, "r");
131 if (script_file) {
132 printf("executing commands from file: %s\n", script_cmds_file);
133 }
134 }
135
136 read_history(".history");
137
138 while(1) {
139 // If there is a script file
140 if (script_file)
141 {
142 memset(script_cmd_buf, 0, sizeof(script_cmd_buf));
143 if (!fgets(script_cmd_buf, sizeof(script_cmd_buf), script_file)) {
144 fclose(script_file);
145 script_file = NULL;
146 } else {
147 strcleanrn(script_cmd_buf, sizeof(script_cmd_buf));
148
149 if ((cmd = strmcopy(script_cmd_buf)) != NULL) {
150 printf(PROXPROMPT"%s\n", cmd);
151 }
152 }
153 } else {
154 // If there is a script command
155 if (execCommand){
156 if ((cmd = strmcopy(script_cmd)) != NULL) {
157 printf(PROXPROMPT"%s\n", cmd);
158 }
159
160 execCommand = false;
161 } else {
162 // exit after exec command
163 if (script_cmd)
164 break;
165
166 // if there is a pipe from stdin
167 if (stdinOnPipe) {
168 memset(script_cmd_buf, 0, sizeof(script_cmd_buf));
169 if (!fgets(script_cmd_buf, sizeof(script_cmd_buf), stdin)) {
170 printf("\nStdin end. Exit...\n");
171 break;
172 }
173 strcleanrn(script_cmd_buf, sizeof(script_cmd_buf));
174
175 if ((cmd = strmcopy(script_cmd_buf)) != NULL) {
176 printf(PROXPROMPT"%s\n", cmd);
177 }
178
179 } else {
180 // read command from command prompt
181 cmd = readline(PROXPROMPT);
182 }
183 }
184 }
185
186 // execute command
187 if (cmd) {
188
189 while(cmd[strlen(cmd) - 1] == ' ')
190 cmd[strlen(cmd) - 1] = 0x00;
191
192 if (cmd[0] != 0x00) {
193 int ret = CommandReceived(cmd);
194 add_history(cmd);
195 if (ret == 99) { // exit or quit
196 break;
197 }
198 }
199 free(cmd);
200 cmd = NULL;
201 } else {
202 printf("\n");
203 break;
204 }
205 }
206
207 write_history(".history");
208
209 if (usb_present) {
210 rarg.run = 0;
211 pthread_join(reader_thread, NULL);
212 }
213
214 if (script_file) {
215 fclose(script_file);
216 script_file = NULL;
217 }
218 }
219
220 static void dumpAllHelp(int markdown)
221 {
222 printf("\n%sProxmark3 command dump%s\n\n",markdown?"# ":"",markdown?"":"\n======================");
223 printf("Some commands are available only if a Proxmark is actually connected.%s\n",markdown?" ":"");
224 printf("Check column \"offline\" for their availability.\n");
225 printf("\n");
226 command_t *cmds = getTopLevelCommandTable();
227 dumpCommandsRecursive(cmds, markdown);
228 }
229
230 static char *my_executable_path = NULL;
231 static char *my_executable_directory = NULL;
232
233 const char *get_my_executable_path(void)
234 {
235 return my_executable_path;
236 }
237
238 const char *get_my_executable_directory(void)
239 {
240 return my_executable_directory;
241 }
242
243 static void set_my_executable_path(void)
244 {
245 int path_length = wai_getExecutablePath(NULL, 0, NULL);
246 if (path_length != -1) {
247 my_executable_path = (char*)malloc(path_length + 1);
248 int dirname_length = 0;
249 if (wai_getExecutablePath(my_executable_path, path_length, &dirname_length) != -1) {
250 my_executable_path[path_length] = '\0';
251 my_executable_directory = (char *)malloc(dirname_length + 2);
252 strncpy(my_executable_directory, my_executable_path, dirname_length+1);
253 my_executable_directory[dirname_length+1] = '\0';
254 }
255 }
256 }
257
258 static void show_help(bool showFullHelp, char *command_line){
259 printf("syntax: %s <port> [-h|-help|-m|-f|-flush|-w|-wait|-c|-command|-l|-lua] [cmd_script_file_name] [command][lua_script_name]\n", command_line);
260 printf("\tLinux example:'%s /dev/ttyACM0'\n", command_line);
261 printf("\tWindows example:'%s com3'\n\n", command_line);
262
263 if (showFullHelp){
264 printf("help: <-h|-help> Dump all interactive command's help at once.\n");
265 printf("\t%s -h\n\n", command_line);
266 printf("markdown: <-m> Dump all interactive help at once in markdown syntax\n");
267 printf("\t%s -m\n\n", command_line);
268 printf("flush: <-f|-flush> Output will be flushed after every print.\n");
269 printf("\t%s -f\n\n", command_line);
270 printf("wait: <-w|-wait> 20sec waiting the serial port to appear in the OS\n");
271 printf("\t%s "SERIAL_PORT_H" -w\n\n", command_line);
272 printf("script: A script file with one proxmark3 command per line.\n\n");
273 printf("command: <-c|-command> Execute one proxmark3 command.\n");
274 printf("\t%s "SERIAL_PORT_H" -c \"hf mf chk 1* ?\"\n", command_line);
275 printf("\t%s "SERIAL_PORT_H" -command \"hf mf nested 1 *\"\n\n", command_line);
276 printf("lua: <-l|-lua> Execute lua script.\n");
277 printf("\t%s "SERIAL_PORT_H" -l hf_read\n\n", command_line);
278 }
279 }
280
281 int main(int argc, char* argv[]) {
282 srand(time(0));
283
284 bool usb_present = false;
285 bool waitCOMPort = false;
286 bool executeCommand = false;
287 bool addLuaExec = false;
288 char *script_cmds_file = NULL;
289 char *script_cmd = NULL;
290
291 if (argc < 2) {
292 show_help(true, argv[0]);
293 return 1;
294 }
295
296 for (int i = 1; i < argc; i++) {
297 if (strcmp(argv[i], "-h") == 0 || strcmp(argv[i],"-help") == 0) {
298 show_help(false, argv[0]);
299 dumpAllHelp(0);
300 return 0;
301 }
302
303 if (strcmp(argv[i], "-m") == 0) {
304 dumpAllHelp(1);
305 return 0;
306 }
307
308 if(strcmp(argv[i],"-f") == 0 || strcmp(argv[i],"-flush") == 0){
309 printf("Output will be flushed after every print.\n");
310 flushAfterWrite = 1;
311 }
312
313 if(strcmp(argv[i],"-w") == 0 || strcmp(argv[i],"-wait") == 0){
314 waitCOMPort = true;
315 }
316
317 if(strcmp(argv[i],"-c") == 0 || strcmp(argv[i],"-command") == 0){
318 executeCommand = true;
319 }
320
321 if(strcmp(argv[i],"-l") == 0 || strcmp(argv[i],"-lua") == 0){
322 executeCommand = true;
323 addLuaExec = true;
324 }
325 }
326
327 // If the user passed the filename of the 'script' to execute, get it from last parameter
328 if (argc > 2 && argv[argc - 1] && argv[argc - 1][0] != '-') {
329 if (executeCommand){
330 script_cmd = argv[argc - 1];
331
332 while(script_cmd[strlen(script_cmd) - 1] == ' ')
333 script_cmd[strlen(script_cmd) - 1] = 0x00;
334
335 if (strlen(script_cmd) == 0) {
336 script_cmd = NULL;
337 } else {
338 if (addLuaExec){
339 // add "script run " to command
340 char *ctmp = NULL;
341 int len = strlen(script_cmd) + 11 + 1;
342 if ((ctmp = (char*) malloc(len)) != NULL) {
343 memset(ctmp, 0, len);
344 strcpy(ctmp, "script run ");
345 strcpy(&ctmp[11], script_cmd);
346 script_cmd = ctmp;
347 }
348 }
349
350 printf("Execute command from commandline: %s\n", script_cmd);
351 }
352 } else {
353 script_cmds_file = argv[argc - 1];
354 }
355 }
356
357 // check command
358 if (executeCommand && (!script_cmd || strlen(script_cmd) == 0)){
359 printf("ERROR: execute command: command not found.\n");
360 return 2;
361 }
362
363 // set global variables
364 set_my_executable_path();
365
366 // open uart
367 if (!waitCOMPort) {
368 sp = uart_open(argv[1]);
369 } else {
370 printf("Waiting for Proxmark to appear on %s ", argv[1]);
371 fflush(stdout);
372 int openCount = 0;
373 do {
374 sp = uart_open(argv[1]);
375 msleep(1000);
376 printf(".");
377 fflush(stdout);
378 } while(++openCount < 20 && (sp == INVALID_SERIAL_PORT || sp == CLAIMED_SERIAL_PORT));
379 printf("\n");
380 }
381
382 // check result of uart opening
383 if (sp == INVALID_SERIAL_PORT) {
384 printf("ERROR: invalid serial port\n");
385 usb_present = false;
386 offline = 1;
387 } else if (sp == CLAIMED_SERIAL_PORT) {
388 printf("ERROR: serial port is claimed by another process\n");
389 usb_present = false;
390 offline = 1;
391 } else {
392 usb_present = true;
393 offline = 0;
394 }
395
396 // create a mutex to avoid interlacing print commands from our different threads
397 pthread_mutex_init(&print_lock, NULL);
398
399 #ifdef HAVE_GUI
400 #ifdef _WIN32
401 InitGraphics(argc, argv, script_cmds_file, script_cmd, usb_present);
402 MainGraphics();
403 #else
404 char* display = getenv("DISPLAY");
405
406 if (display && strlen(display) > 1)
407 {
408 InitGraphics(argc, argv, script_cmds_file, script_cmd, usb_present);
409 MainGraphics();
410 }
411 else
412 {
413 main_loop(script_cmds_file, script_cmd, usb_present);
414 }
415 #endif
416 #else
417 main_loop(script_cmds_file, script_cmd, usb_present);
418 #endif
419
420 // Clean up the port
421 if (usb_present) {
422 uart_close(sp);
423 }
424
425 // clean up mutex
426 pthread_mutex_destroy(&print_lock);
427
428 exit(0);
429 }
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