// Main command parser entry point
//-----------------------------------------------------------------------------
+#include "cmdmain.h"
+
+#include <pthread.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
-#include "sleep.h"
#include "cmdparser.h"
#include "proxmark3.h"
#include "data.h"
#include "cmddata.h"
#include "cmdhw.h"
#include "cmdlf.h"
-#include "cmdmain.h"
#include "util.h"
+#include "util_posix.h"
#include "cmdscript.h"
static int cmd_head;//Starts as 0
//Points to the position of the last unread command
static int cmd_tail;//Starts as 0
+// to lock cmdBuffer operations from different threads
+static pthread_mutex_t cmdBufferMutex = PTHREAD_MUTEX_INITIALIZER;
static command_t CommandTable[] =
{
{"help", CmdHelp, 1, "This help. Use '<command> help' for details of a particular command."},
{"data", CmdData, 1, "{ Plot window / data buffer manipulation... }"},
- {"hf", CmdHF, 1, "{ High Frequency commands... }"},
+ {"hf", CmdHF, 1, "{ High Frequency commands... }"},
{"hw", CmdHW, 1, "{ Hardware commands... }"},
- {"lf", CmdLF, 1, "{ Low Frequency commands... }"},
- {"script", CmdScript, 1,"{ Scripting commands }"},
+ {"lf", CmdLF, 1, "{ Low Frequency commands... }"},
+ {"script",CmdScript,1, "{ Scripting commands }"},
{"quit", CmdQuit, 1, "Exit program"},
{"exit", CmdQuit, 1, "Exit program"},
{NULL, NULL, 0, NULL}
int CmdQuit(const char *Cmd)
{
- exit(0);
- return 0;
+ return 99;
}
+
/**
* @brief This method should be called when sending a new command to the pm3. In case any old
* responses from previous commands are stored in the buffer, a call to this method should clear them.
void clearCommandBuffer()
{
//This is a very simple operation
+ pthread_mutex_lock(&cmdBufferMutex);
cmd_tail = cmd_head;
+ pthread_mutex_unlock(&cmdBufferMutex);
}
/**
*/
void storeCommand(UsbCommand *command)
{
+ pthread_mutex_lock(&cmdBufferMutex);
if( ( cmd_head+1) % CMD_BUFFER_SIZE == cmd_tail)
{
//If these two are equal, we're about to overwrite in the
memcpy(destination, command, sizeof(UsbCommand));
cmd_head = (cmd_head +1) % CMD_BUFFER_SIZE; //increment head and wrap
-
+ pthread_mutex_unlock(&cmdBufferMutex);
}
+
+
/**
* @brief getCommand gets a command from an internal circular buffer.
* @param response location to write command
*/
int getCommand(UsbCommand* response)
{
+ pthread_mutex_lock(&cmdBufferMutex);
//If head == tail, there's nothing to read, or if we just got initialized
if(cmd_head == cmd_tail){
+ pthread_mutex_unlock(&cmdBufferMutex);
return 0;
}
//Pick out the next unread command
memcpy(response, last_unread, sizeof(UsbCommand));
//Increment tail - this is a circular buffer, so modulo buffer size
cmd_tail = (cmd_tail +1 ) % CMD_BUFFER_SIZE;
-
+ pthread_mutex_unlock(&cmdBufferMutex);
return 1;
-
}
+
/**
* Waits for a certain response type. This method waits for a maximum of
* ms_timeout milliseconds for a specified response command.
* @param ms_timeout
* @return true if command was returned, otherwise false
*/
-bool WaitForResponseTimeout(uint32_t cmd, UsbCommand* response, size_t ms_timeout) {
+bool WaitForResponseTimeoutW(uint32_t cmd, UsbCommand* response, size_t ms_timeout, bool show_warning) {
- UsbCommand resp;
-
- if (response == NULL)
- response = &resp;
-
-
- // Wait until the command is received
- for(size_t dm_seconds=0; dm_seconds < ms_timeout/10; dm_seconds++) {
+ UsbCommand resp;
+
+ if (response == NULL) {
+ response = &resp;
+ }
+ uint64_t start_time = msclock();
+
+ // Wait until the command is received
+ while (true) {
while(getCommand(response)) {
- if(response->cmd == cmd){
- return true;
- }
- }
- msleep(10); // XXX ugh
- if (dm_seconds == 200) { // Two seconds elapsed
- PrintAndLog("Waiting for a response from the proxmark...");
- PrintAndLog("Don't forget to cancel its operation first by pressing on the button");
- }
+ if(response->cmd == cmd){
+ return true;
+ }
+ }
+ if (msclock() - start_time > ms_timeout) {
+ break;
+ }
+ if (msclock() - start_time > 2000 && show_warning) {
+ PrintAndLog("Waiting for a response from the proxmark...");
+ PrintAndLog("Don't forget to cancel its operation first by pressing on the button");
+ show_warning = false;
+ }
}
- return false;
+ return false;
+}
+
+
+bool WaitForResponseTimeout(uint32_t cmd, UsbCommand* response, size_t ms_timeout) {
+ return WaitForResponseTimeoutW(cmd, response, ms_timeout, true);
}
bool WaitForResponse(uint32_t cmd, UsbCommand* response) {
- return WaitForResponseTimeout(cmd,response,-1);
+ return WaitForResponseTimeoutW(cmd, response, -1, true);
}
+
//-----------------------------------------------------------------------------
// Entry point into our code: called whenever the user types a command and
// then presses Enter, which the full command line that they typed.
//-----------------------------------------------------------------------------
-void CommandReceived(char *Cmd) {
- CmdsParse(CommandTable, Cmd);
+int CommandReceived(char *Cmd) {
+ return CmdsParse(CommandTable, Cmd);
}
+
//-----------------------------------------------------------------------------
// Entry point into our code: called whenever we received a packet over USB
// that we weren't necessarily expecting, for example a debug print.
switch(UC->cmd) {
// First check if we are handling a debug message
case CMD_DEBUG_PRINT_STRING: {
- char s[USB_CMD_DATA_SIZE+1] = {0x00};
+ char s[USB_CMD_DATA_SIZE+1];
+ memset(s, 0x00, sizeof(s));
size_t len = MIN(UC->arg[0],USB_CMD_DATA_SIZE);
memcpy(s,UC->d.asBytes,len);
- PrintAndLog("#db# %s ", s);
+ PrintAndLog("#db# %s", s);
return;
} break;
} break;
case CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K: {
- sample_buf_len += UC->arg[1];
memcpy(sample_buf+(UC->arg[0]),UC->d.asBytes,UC->arg[1]);
+ return;
} break;
default:
+ storeCommand(UC);
break;
}
- storeCommand(UC);
}
projects / proxmark3-svn / blobdiff