git.zerfleddert.de Git - proxmark3-svn/blob - client/cmdmain.c

   1 //-----------------------------------------------------------------------------
   2 // Copyright (C) 2010 iZsh <izsh at fail0verflow.com>
   3 //
   4 // This code is licensed to you under the terms of the GNU GPL, version 2 or,
   5 // at your option, any later version. See the LICENSE.txt file for the text of
   6 // the license.
   7 //-----------------------------------------------------------------------------
   8 // Main command parser entry point
   9 //-----------------------------------------------------------------------------
  10
  11 #include <stdio.h>
  12 #include <stdlib.h>
  13 #include <unistd.h>
  14 #include <string.h>
  15 #include "sleep.h"
  16 #include "cmdparser.h"
  17 #include "proxmark3.h"
  18 #include "data.h"
  19 #include "../include/usb_cmd.h"
  20 #include "ui.h"
  21 #include "cmdhf.h"
  22 #include "cmddata.h"
  23 #include "cmdhw.h"
  24 #include "cmdlf.h"
  25 #include "cmdmain.h"
  26 #include "util.h"
  27 #include "cmdscript.h"
  28
  29 int delta125[2];
  30 int delta134[2];
  31 int deltahf[2];
  32 int deltaReset = 0;
  33
  34 unsigned int current_command = CMD_UNKNOWN;
  35 //unsigned int received_command = CMD_UNKNOWN;
  36 //UsbCommand current_response;
  37 //UsbCommand current_response_user;
  38
  39 static int CmdHelp(const char *Cmd);
  40 static int CmdQuit(const char *Cmd);
  41
  42 //For storing command that are received from the device
  43 #define CMD_BUFFER_SIZE 50
  44 static UsbCommand cmdBuffer[CMD_BUFFER_SIZE];
  45 //Points to the next empty position to write to
  46 static int cmd_head;//Starts as 0
  47 //Points to the position of the last unread command
  48 static int cmd_tail;//Starts as 0
  49
  50 static command_t CommandTable[] =
  51 {
  52   {"help",  CmdHelp,  1, "This help. Use '<command> help' for details of a particular command."},
  53   {"data",  CmdData,  1, "{ Plot window / data buffer manipulation... }"},
  54   {"hf",    CmdHF,    1, "{ High Frequency commands... }"},
  55   {"hw",    CmdHW,    1, "{ Hardware commands... }"},
  56   {"lf",    CmdLF,    1, "{ Low Frequency commands... }"},
  57   {"script", CmdScript,   1,"{ Scripting commands }"},
  58   {"quit",  CmdQuit,  1, "Exit program"},
  59   {"exit",  CmdQuit,  1, "Exit program"},
  60   {NULL, NULL, 0, NULL}
  61 };
  62
  63 command_t* getTopLevelCommandTable()
  64 {
  65   return CommandTable;
  66 }
  67 int CmdHelp(const char *Cmd)
  68 {
  69   CmdsHelp(CommandTable);
  70   return 0;
  71 }
  72
  73 int CmdQuit(const char *Cmd)
  74 {
  75   exit(0);
  76   return 0;
  77 }
  78 /**
  79  * @brief This method should be called when sending a new command to the pm3. In case any old
  80  *  responses from previous commands are stored in the buffer, a call to this method should clear them.
  81  *  A better method could have been to have explicit command-ACKS, so we can know which ACK goes to which
  82  *  operation. Right now we'll just have to live with this.
  83  */
  84 void clearCommandBuffer()
  85 {
  86     //This is a very simple operation
  87     cmd_tail = cmd_head;
  88 }
  89
  90 /**
  91  * @brief storeCommand stores a USB command in a circular buffer
  92  * @param UC
  93  */
  94 void storeCommand(UsbCommand *command)
  95 {
  96     if( ( cmd_head+1) % CMD_BUFFER_SIZE == cmd_tail)
  97     {
  98         //If these two are equal, we're about to overwrite in the
  99         // circular buffer.
 100         PrintAndLog("WARNING: Command buffer about to overwrite command! This needs to be fixed!");
 101     }
 102     //Store the command at the 'head' location
 103     UsbCommand* destination = &cmdBuffer[cmd_head];
 104     memcpy(destination, command, sizeof(UsbCommand));
 105
 106     cmd_head = (cmd_head +1) % CMD_BUFFER_SIZE; //increment head and wrap
 107
 108 }
 109 /**
 110  * @brief getCommand gets a command from an internal circular buffer.
 111  * @param response location to write command
 112  * @return 1 if response was returned, 0 if nothing has been received
 113  */
 114 int getCommand(UsbCommand* response)
 115 {
 116     //If head == tail, there's nothing to read, or if we just got initialized
 117     if(cmd_head == cmd_tail){
 118         return 0;
 119     }
 120     //Pick out the next unread command
 121     UsbCommand* last_unread = &cmdBuffer[cmd_tail];
 122     memcpy(response, last_unread, sizeof(UsbCommand));
 123     //Increment tail - this is a circular buffer, so modulo buffer size
 124     cmd_tail = (cmd_tail +1 ) % CMD_BUFFER_SIZE;
 125
 126     return 1;
 127
 128 }
 129
 130 /**
 131  * Waits for a certain response type. This method waits for a maximum of
 132  * ms_timeout milliseconds for a specified response command.
 133  *@brief WaitForResponseTimeout
 134  * @param cmd command to wait for
 135  * @param response struct to copy received command into.
 136  * @param ms_timeout
 137  * @return true if command was returned, otherwise false
 138  */
 139 bool WaitForResponseTimeout(uint32_t cmd, UsbCommand* response, size_t ms_timeout) {
 140
 141   UsbCommand resp;
 142
 143   if (response == NULL) {
 144
 145     response = &resp;
 146   }
 147
 148   // Wait until the command is received
 149   for(size_t dm_seconds=0; dm_seconds < ms_timeout/10; dm_seconds++) {
 150
 151       while(getCommand(response))
 152       {
 153           if(response->cmd == cmd){
 154           //We got what we expected
 155           return true;
 156           }
 157
 158       }
 159         msleep(10); // XXX ugh
 160         if (dm_seconds == 200) { // Two seconds elapsed
 161           PrintAndLog("Waiting for a response from the proxmark...");
 162           PrintAndLog("Don't forget to cancel its operation first by pressing on the button");
 163         }
 164         }
 165     return false;
 166 }
 167
 168 bool WaitForResponse(uint32_t cmd, UsbCommand* response) {
 169         return WaitForResponseTimeout(cmd,response,-1);
 170 }
 171
 172 //-----------------------------------------------------------------------------
 173 // Entry point into our code: called whenever the user types a command and
 174 // then presses Enter, which the full command line that they typed.
 175 //-----------------------------------------------------------------------------
 176 void CommandReceived(char *Cmd) {
 177   CmdsParse(CommandTable, Cmd);
 178 }
 179
 180 //-----------------------------------------------------------------------------
 181 // Entry point into our code: called whenever we received a packet over USB
 182 // that we weren't necessarily expecting, for example a debug print.
 183 //-----------------------------------------------------------------------------
 184 void UsbCommandReceived(UsbCommand *UC)
 185 {
 186   /*
 187   //  Debug
 188   printf("UsbCommand length[len=%zd]\n",sizeof(UsbCommand));
 189   printf("  cmd[len=%zd]: %"llx"\n",sizeof(UC->cmd),UC->cmd);
 190   printf(" arg0[len=%zd]: %"llx"\n",sizeof(UC->arg[0]),UC->arg[0]);
 191   printf(" arg1[len=%zd]: %"llx"\n",sizeof(UC->arg[1]),UC->arg[1]);
 192   printf(" arg2[len=%zd]: %"llx"\n",sizeof(UC->arg[2]),UC->arg[2]);
 193   printf(" data[len=%zd]: %02x%02x%02x...\n",sizeof(UC->d.asBytes),UC->d.asBytes[0],UC->d.asBytes[1],UC->d.asBytes[2]);
 194   */
 195
 196   //    printf("%s(%x) current cmd = %x\n", __FUNCTION__, c->cmd, current_command);
 197   // If we recognize a response, return to avoid further processing
 198   switch(UC->cmd) {
 199       // First check if we are handling a debug message
 200     case CMD_DEBUG_PRINT_STRING: {
 201       char s[USB_CMD_DATA_SIZE+1] = {0x00};
 202       size_t len = MIN(UC->arg[0],USB_CMD_DATA_SIZE);
 203       memcpy(s,UC->d.asBytes,len);
 204       PrintAndLog("#db# %s       ", s);
 205       return;
 206     } break;
 207
 208     case CMD_DEBUG_PRINT_INTEGERS: {
 209       PrintAndLog("#db# %08x, %08x, %08x       \r\n", UC->arg[0], UC->arg[1], UC->arg[2]);
 210       return;
 211     } break;
 212
 213     case CMD_MEASURED_ANTENNA_TUNING: {
 214       int peakv, peakf;
 215       int vLf125, vLf134, vHf;
 216       vLf125 = UC->arg[0] & 0xffff;
 217       vLf134 = UC->arg[0] >> 16;
 218       vHf    = UC->arg[1] & 0xffff;;
 219       peakf  = UC->arg[2] & 0xffff;
 220       peakv  = UC->arg[2] >> 16;
 221
 222           //Reset delta trigger every 3:d time
 223
 224           if ( deltaReset == 4){
 225                 delta125[0] = vLf125;
 226                 delta134[0] = vLf134;
 227                 deltahf[0]  = vHf;
 228           } else if ( deltaReset == 2){
 229                 delta125[1] = vLf125;
 230                 delta134[1] = vLf134;
 231                 deltahf[1]  = vHf;
 232           }
 233
 234           if ( deltaReset == 0){
 235
 236           }
 237
 238       PrintAndLog("");
 239       PrintAndLog("# LF antenna: %5.2f V @   125.00 kHz", vLf125/1000.0);
 240       PrintAndLog("# LF antenna: %5.2f V @   134.00 kHz", vLf134/1000.0);
 241       PrintAndLog("# LF optimal: %5.2f V @    %9.2f kHz", peakv/1000.0, 12000.0/(peakf+1));
 242       PrintAndLog("# HF antenna: %5.2f V @    13.56 MHz", vHf/1000.0);
 243       if (peakv<2000)
 244         PrintAndLog("# Your LF antenna is unusable.");
 245       else if (peakv<10000)
 246         PrintAndLog("# Your LF antenna is marginal.");
 247       if (vHf<2000)
 248         PrintAndLog("# Your HF antenna is unusable.");
 249       else if (vHf<5000)
 250         PrintAndLog("# Your HF antenna is marginal.");
 251     }
 252
 253         deltaReset = (deltaReset == 0)  ? 4 :  deltaReset>>1;
 254         break;
 255
 256     case CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K: {
 257 //      printf("received samples: ");
 258 //      print_hex(UC->d.asBytes,512);
 259       sample_buf_len += UC->arg[1];
 260 //      printf("samples: %zd offset: %d\n",sample_buf_len,UC->arg[0]);
 261       memcpy(sample_buf+(UC->arg[0]),UC->d.asBytes,UC->arg[1]);
 262     } break;
 263
 264
 265 //    case CMD_ACK: {
 266 //      PrintAndLog("Receive ACK\n");
 267 //    } break;
 268
 269     default: {
 270       // Maybe it's a response
 271       /*
 272       switch(current_command) {
 273         case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: {
 274           if (UC->cmd != CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K) {
 275             PrintAndLog("unrecognized command %08x\n", UC->cmd);
 276             break;
 277           }
 278 //          int i;
 279           PrintAndLog("received samples %d\n",UC->arg[0]);
 280           memcpy(sample_buf+UC->arg[0],UC->d.asBytes,48);
 281           sample_buf_len += 48;
 282 //          for(i=0; i<48; i++) sample_buf[i] = UC->d.asBytes[i];
 283           //received_command = UC->cmd;
 284         } break;
 285
 286         default: {
 287         } break;
 288       }*/
 289     }
 290       break;
 291   }
 292
 293   storeCommand(UC);
 294
 295 }
 296