//----------------------------------------------------------------------------- // Copyright (C) 2010 iZsh // // 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. //----------------------------------------------------------------------------- // Main command parser entry point //----------------------------------------------------------------------------- #include #include #include #include #include "sleep.h" #include "cmdparser.h" #include "proxmark3.h" #include "data.h" #include "usb_cmd.h" #include "ui.h" #include "cmdhf.h" #include "cmddata.h" #include "cmdhw.h" #include "cmdlf.h" #include "cmdmain.h" #include "util.h" unsigned int current_command = CMD_UNKNOWN; //unsigned int received_command = CMD_UNKNOWN; //UsbCommand current_response; //UsbCommand current_response_user; 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 static command_t CommandTable[] = { {"help", CmdHelp, 1, "This help. Use ' help' for details of the following commands:\n"}, {"data", CmdData, 1, "{ Plot window / data buffer manipulation... }"}, {"exit", CmdQuit, 1, "Exit program"}, {"hf", CmdHF, 1, "{ HF commands... }"}, {"hw", CmdHW, 1, "{ Hardware commands... }"}, {"lf", CmdLF, 1, "{ LF commands... }"}, {"quit", CmdQuit, 1, "Quit program"}, {NULL, NULL, 0, NULL} }; int CmdHelp(const char *Cmd) { CmdsHelp(CommandTable); return 0; } int CmdQuit(const char *Cmd) { exit(0); return 0; } int getCommand(UsbCommand* response); void storeCommand(UsbCommand *command); /** * 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 WaitForResponseTimeout(uint32_t cmd, UsbCommand* response, size_t ms_timeout) { if (response == NULL) { UsbCommand resp; response = &resp; } // Wait until the command is received for(size_t dm_seconds=0; dm_seconds < ms_timeout/10; dm_seconds++) { while(getCommand(response)) { if(response->cmd == cmd){ //We got what we expected 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"); } } return false; } bool WaitForResponse(uint32_t cmd, UsbCommand* response) { return WaitForResponseTimeout(cmd,response,-1); } //----------------------------------------------------------------------------- // 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); } //----------------------------------------------------------------------------- // 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) { /* // Debug printf("UsbCommand length[len=%zd]\n",sizeof(UsbCommand)); printf(" cmd[len=%zd]: %"llx"\n",sizeof(UC->cmd),UC->cmd); printf(" arg0[len=%zd]: %"llx"\n",sizeof(UC->arg[0]),UC->arg[0]); printf(" arg1[len=%zd]: %"llx"\n",sizeof(UC->arg[1]),UC->arg[1]); printf(" arg2[len=%zd]: %"llx"\n",sizeof(UC->arg[2]),UC->arg[2]); printf(" data[len=%zd]: %02x%02x%02x...\n",sizeof(UC->d.asBytes),UC->d.asBytes[0],UC->d.asBytes[1],UC->d.asBytes[2]); */ // printf("%s(%x) current cmd = %x\n", __FUNCTION__, c->cmd, current_command); // If we recognize a response, return to avoid further processing switch(UC->cmd) { // First check if we are handling a debug message case CMD_DEBUG_PRINT_STRING: { char s[USB_CMD_DATA_SIZE+1]; size_t len = MIN(UC->arg[0],USB_CMD_DATA_SIZE); memcpy(s,UC->d.asBytes,len); s[len] = 0x00; 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_MEASURED_ANTENNA_TUNING: { int peakv, peakf; int vLf125, vLf134, vHf; vLf125 = UC->arg[0] & 0xffff; vLf134 = UC->arg[0] >> 16; vHf = UC->arg[1] & 0xffff;; peakf = UC->arg[2] & 0xffff; peakv = UC->arg[2] >> 16; PrintAndLog(""); PrintAndLog("# LF antenna: %5.2f V @ 125.00 kHz", vLf125/1000.0); PrintAndLog("# LF antenna: %5.2f V @ 134.00 kHz", vLf134/1000.0); PrintAndLog("# LF optimal: %5.2f V @%9.2f kHz", peakv/1000.0, 12000.0/(peakf+1)); PrintAndLog("# HF antenna: %5.2f V @ 13.56 MHz", vHf/1000.0); if (peakv<2000) PrintAndLog("# Your LF antenna is unusable."); else if (peakv<10000) PrintAndLog("# Your LF antenna is marginal."); if (vHf<2000) PrintAndLog("# Your HF antenna is unusable."); else if (vHf<5000) PrintAndLog("# Your HF antenna is marginal."); } break; case CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K: { // printf("received samples: "); // print_hex(UC->d.asBytes,512); sample_buf_len += UC->arg[1]; // printf("samples: %zd offset: %d\n",sample_buf_len,UC->arg[0]); memcpy(sample_buf+(UC->arg[0]),UC->d.asBytes,UC->arg[1]); } break; // case CMD_ACK: { // PrintAndLog("Receive ACK\n"); // } break; default: { // Maybe it's a response /* switch(current_command) { case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: { if (UC->cmd != CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K) { PrintAndLog("unrecognized command %08x\n", UC->cmd); break; } // int i; PrintAndLog("received samples %d\n",UC->arg[0]); memcpy(sample_buf+UC->arg[0],UC->d.asBytes,48); sample_buf_len += 48; // for(i=0; i<48; i++) sample_buf[i] = UC->d.asBytes[i]; //received_command = UC->cmd; } break; default: { } break; }*/ } break; } storeCommand(UC); } /** * @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 cmd_tail = cmd_head; } /** * @brief storeCommand stores a USB command in a circular buffer * @param UC */ void storeCommand(UsbCommand *command) { 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 } /** * @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) { //If head == tail, there's nothing to read, or if we just got initialized if(cmd_head == cmd_tail){ 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; return 1; }