X-Git-Url: http://cvs.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/806dc07542ab956f376811e59b4dca8f9c98af89..e33b652c535be95344724728a0b9dd1f3cf87587:/client/cmdmain.c diff --git a/client/cmdmain.c b/client/cmdmain.c index 18515f65..b2723490 100644 --- a/client/cmdmain.c +++ b/client/cmdmain.c @@ -26,27 +26,40 @@ #include "util.h" #include "cmdscript.h" + unsigned int current_command = CMD_UNKNOWN; -unsigned int received_command = CMD_UNKNOWN; -UsbCommand current_response; -UsbCommand current_response_user; +//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"}, + {"help", CmdHelp, 1, "This help. Use ' help' for details of a particular command."}, {"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"}, - {"script", CmdScript, 1,"Run script"}, + {"script", CmdScript, 1,"{ Scripting commands }"}, + {"quit", CmdQuit, 1, "Exit program"}, + {"exit", CmdQuit, 1, "Exit program"}, {NULL, NULL, 0, NULL} }; +command_t* getTopLevelCommandTable() +{ + return CommandTable; +} int CmdHelp(const char *Cmd) { CmdsHelp(CommandTable); @@ -58,30 +71,93 @@ int CmdQuit(const char *Cmd) exit(0); return 0; } +/** + * @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; +} -bool WaitForResponseTimeout(uint32_t cmd, UsbCommand* response, size_t ms_timeout) { +/** + * @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)); - // Wait until the command is received - for(size_t i=0; received_command != cmd && i < ms_timeout/10; i++) { - msleep(10); // XXX ugh - if (i == 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"); + 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; } - } - - // Check if timeout occured - if(received_command != cmd) return false; + //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; - // Copy the received response (if supplied) - if (response) { - memcpy(response, ¤t_response, sizeof(UsbCommand)); + 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 WaitForResponseTimeout(uint32_t cmd, UsbCommand* response, size_t ms_timeout) { + + UsbCommand resp; + + if (response == NULL) { + response = &resp; } - // Reset the received command - received_command = CMD_UNKNOWN; + // 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; + } - 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) { @@ -130,28 +206,28 @@ void UsbCommandReceived(UsbCommand *UC) 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_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: "); @@ -168,6 +244,7 @@ void UsbCommandReceived(UsbCommand *UC) 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) { @@ -179,43 +256,17 @@ void UsbCommandReceived(UsbCommand *UC) 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; + //received_command = UC->cmd; } break; default: { } break; - } -// // Store the last received command -// memcpy(¤t_response, UC, sizeof(UsbCommand)); -// received_command = UC->cmd; - } break; - } - // Store the last received command - memcpy(¤t_response, UC, sizeof(UsbCommand)); - received_command = UC->cmd; -/* - // Maybe it's a response: - switch(current_command) { - case CMD_DOWNLOAD_RAW_ADC_SAMPLES_125K: - if (UC->cmd != CMD_DOWNLOADED_RAW_ADC_SAMPLES_125K) goto unexpected_response; - int i; - for(i=0; i<48; i++) sample_buf[i] = UC->d.asBytes[i]; - received_command = UC->cmd; - return; - case CMD_ACQUIRE_RAW_ADC_SAMPLES_125K: - case CMD_DOWNLOADED_SIM_SAMPLES_125K: - if (UC->cmd != CMD_ACK) goto unexpected_response; - // got ACK - received_command = UC->cmd; - return; - default: - unexpected_response: - - if(UC->cmd != CMD_ACK) - PrintAndLog("unrecognized command %08x \n", UC->cmd); - else - memcpy(¤t_response, UC, sizeof(UsbCommand)); - received_command = UC->cmd; + }*/ + } + break; } - */ + + storeCommand(UC); + } +