#include "cmdscript.h"
-unsigned int current_command = CMD_UNKNOWN;
-
static int CmdHelp(const char *Cmd);
static int CmdQuit(const char *Cmd);
-//For storing command that are received from the device
-#define CMD_BUFFER_SIZE 50
-static UsbCommand cmdBuffer[CMD_BUFFER_SIZE];
-//Points to the next empty position to write to
-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[] =
{
{
return CommandTable;
}
+
int CmdHelp(const char *Cmd)
{
CmdsHelp(CommandTable);
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.
- * A better method could have been to have explicit command-ACKS, so we can know which ACK goes to which
- * operation. Right now we'll just have to live with this.
- */
-void clearCommandBuffer()
-{
- //This is a very simple operation
- pthread_mutex_lock(&cmdBufferMutex);
- cmd_tail = cmd_head;
- pthread_mutex_unlock(&cmdBufferMutex);
-}
-
-/**
- * @brief storeCommand stores a USB command in a circular buffer
- * @param UC
- */
-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
- // circular buffer.
- PrintAndLog("WARNING: Command buffer about to overwrite command! This needs to be fixed!");
- }
- //Store the command at the 'head' location
- UsbCommand* destination = &cmdBuffer[cmd_head];
- 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
- * @return 1 if response was returned, 0 if nothing has been received
- */
-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
- UsbCommand* last_unread = &cmdBuffer[cmd_tail];
- 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.
- *@brief WaitForResponseTimeout
- * @param cmd command to wait for
- * @param response struct to copy received command into.
- * @param ms_timeout
- * @return true if command was returned, otherwise false
- */
-bool WaitForResponseTimeoutW(uint32_t cmd, UsbCommand* response, size_t ms_timeout, bool show_warning) {
-
- 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;
- }
- }
- 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;
-}
-
-
-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 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.
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.
-//-----------------------------------------------------------------------------
-void UsbCommandReceived(UsbCommand *UC)
-{
- switch(UC->cmd) {
- // First check if we are handling a debug message
- case CMD_DEBUG_PRINT_STRING: {
- 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);
- return;
- } break;
-
- case CMD_DEBUG_PRINT_INTEGERS: {
- PrintAndLog("#db# %08x, %08x, %08x \r\n", UC->arg[0], UC->arg[1], UC->arg[2]);
- return;
- } break;
-
- case CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K: {
- memcpy(sample_buf+(UC->arg[0]),UC->d.asBytes,UC->arg[1]);
- return;
- } break;
-
- default:
- storeCommand(UC);
- break;
- }
-
-}
-
projects / proxmark3-svn / blobdiff