]> cvs.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdhf14a.c
export apdu function
[proxmark3-svn] / client / cmdhf14a.c
index d84a8f354738595e5811d6265f0ae88fc3f72f33..cdaa18cd1ca106960e0f7eb91a875ddea512af6f 100644 (file)
@@ -9,27 +9,10 @@
 // High frequency ISO14443A commands
 //-----------------------------------------------------------------------------
 
-#include <stdio.h>
-#include <stdlib.h>
-#include <inttypes.h>
-#include <string.h>
-#include <unistd.h>
-#include "util.h"
-#include "util_posix.h"
-#include "iso14443crc.h"
-#include "data.h"
-#include "proxmark3.h"
-#include "ui.h"
-#include "cmdparser.h"
 #include "cmdhf14a.h"
-#include "common.h"
-#include "cmdmain.h"
-#include "mifare.h"
-#include "cmdhfmfu.h"
-#include "mifarehost.h"
 
 static int CmdHelp(const char *Cmd);
-static void waitCmd(uint8_t iLen);
+static int waitCmd(uint8_t iLen);
 
 // structure and database for uid -> tagtype lookups 
 typedef struct { 
@@ -554,59 +537,171 @@ int CmdHF14ASnoop(const char *Cmd) {
        return 0;
 }
 
-int CmdHF14AAPDU(const char *cmd) {
+int ExchangeAPDU14a(uint8_t *datain, int datainlen, bool activateField, bool leaveSignalON, uint8_t *dataout, int *dataoutlen) {
        uint8_t data[USB_CMD_DATA_SIZE];
-       uint16_t datalen = 0;
+       int datalen;
        uint8_t cmdc = 0;
+       uint8_t first, second;
        
-       if (strlen(cmd)<2) {
-               PrintAndLog("Usage: hf 14a apdu [-s] [-k] [-t] <APDU (hex)>");
-               PrintAndLog("       -s    activate field and select card");
-               PrintAndLog("       -k    leave the signal field ON after receive response");
-               PrintAndLog("       -t    executes TLV decoder if it possible");
-               return 0;
-       }
-       
-       cmdc |= ISO14A_CONNECT;
-       cmdc |= ISO14A_NO_DISCONNECT;
+       if (activateField)
+               cmdc |= ISO14A_CONNECT;
+       if (leaveSignalON)
+               cmdc |= ISO14A_NO_DISCONNECT;
+
+       // ISO 14443 APDU frame: PCB [CID] [NAD] APDU CRC PCB=0x02
+       memcpy(data + 1, datain, datainlen);
+       data[0] = 0x02; // bnr,nad,cid,chn=0; i-block(0x00)     
+       datalen = datainlen + 1;
        
-       UsbCommand c = {CMD_READER_ISO_14443a, {cmdc | ISO14A_APDU | ISO14A_SET_TIMEOUT, 0, 100}}; // 100-timeout in iso14a_set_timeout()
-       // Max buffer is USB_CMD_DATA_SIZE (512)
-       c.arg[1] = (datalen & 0xFFFF) | ((uint32_t)numbits << 16);
-
-       uint8_t first, second;
        ComputeCrc14443(CRC_14443_A, data, datalen, &first, &second);
        data[datalen++] = first;
        data[datalen++] = second;
 
-       memcpy(c.d.asBytes,data,datalen);
-
+       // "Command APDU" length should be 5+255+1, but javacard's APDU buffer might be smaller - 133 bytes
+       // https://stackoverflow.com/questions/32994936/safe-max-java-card-apdu-data-command-and-respond-size
+       // here length USB_CMD_DATA_SIZE=512
+       // timeout timeout14a * 1.06 / 100, true, size, &keyBlock[6 * c], e_sector); // timeout is (ms * 106)/10 or us*0.0106
+       UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_RAW | ISO14A_SET_TIMEOUT | cmdc, (datalen & 0xFFFF), 1000 * 1000 * 1.06 / 100}}; 
+       memcpy(c.d.asBytes, data, datalen);
        SendCommand(&c);
        
-    if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {
+    uint8_t *recv;
+    UsbCommand resp;
+
+       if (activateField) {
+               if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500)) 
+                       return 1;
+               if (resp.arg[0] != 1)
+                       return 1;
+       }
+
+    if (WaitForResponseTimeout(CMD_ACK, &resp, 1500)) {
         recv = resp.d.asBytes;
         uint8_t iLen = resp.arg[0];
+               
+               *dataoutlen = iLen - 1 - 2;
+               if (*dataoutlen < 0)
+                       *dataoutlen = 0;
+               memcpy(dataout, recv + 1, *dataoutlen);
+               
         if(!iLen)
-            return;
-        hexout = (char *)malloc(iLen * 3 + 1);
-        if (hexout != NULL) {
-            for (int i = 0; i < iLen; i++) { // data in hex
-                sprintf(&hexout[i * 3], "%02X ", recv[i]);
-            }
-            PrintAndLog("%s", hexout);
-            free(hexout);
-        } else {
-            PrintAndLog("malloc failed...");
-                       return 1;
-        }
+            return 1;
+
+               // check apdu length
+               if (iLen < 5) {
+                       PrintAndLog("APDU ERROR: Small APDU response.");
+                       return 2;
+               }
+               
+               // check block
+               if (data[0] != recv[0]) {
+                       PrintAndLog("APDU ERROR: Block type mismatch: %02x-%02x", data[0], recv[0]);
+                       return 2;
+               }
+               
+               // CRC Check
+               ComputeCrc14443(CRC_14443_A, recv, iLen, &first, &second);
+               if (first || second) {
+                       PrintAndLog("APDU ERROR: ISO 14443A CRC error.");
+                       return 3;
+               }
+               
     } else {
-        PrintAndLog("timeout while waiting for reply.");
-               return 2;
+        PrintAndLog("APDU ERROR: Reply timeout.");
+               return 4;
     }
        
        return 0;
 }
 
+int CmdHF14AAPDU(const char *cmd) {
+       uint8_t data[USB_CMD_DATA_SIZE];
+       int datalen = 0;
+       bool activateField = false;
+       bool leaveSignalON = false;
+       bool decodeTLV = false;
+       
+       if (strlen(cmd) < 2) {
+               PrintAndLog("Usage: hf 14a apdu [-s] [-k] [-t] <APDU (hex)>");
+               PrintAndLog("       -s    activate field and select card");
+               PrintAndLog("       -k    leave the signal field ON after receive response");
+               PrintAndLog("       -t    executes TLV decoder if it possible");
+               return 0;
+       }
+
+       int cmdp = 0;
+       while(param_getchar(cmd, cmdp) != 0x00) {
+               char c = param_getchar(cmd, cmdp);
+               if ((c == '-') && (param_getlength(cmd, cmdp) == 2))
+                       switch (param_getchar_indx(cmd, 1, cmdp)) {
+                               case 's':
+                               case 'S':
+                                       activateField = true;
+                                       break;
+                               case 'k':
+                               case 'K':
+                                       leaveSignalON = true;
+                                       break;
+                               case 't':
+                               case 'T':
+                                       decodeTLV = true;
+                                       break;
+                               default:
+                                       PrintAndLog("Unknown parameter '%c'", param_getchar_indx(cmd, 1, cmdp));
+                                       return 1;
+                       }
+                       
+               if (isxdigit(c)) {
+                       // len = data + PCB(1b) + CRC(2b)
+                       switch(param_gethex_to_eol(cmd, cmdp, data, sizeof(data) - 1 - 2, &datalen)) {
+                       case 1:
+                               PrintAndLog("Invalid HEX value.");
+                               return 1;
+                       case 2:
+                               PrintAndLog("APDU too large.");
+                               return 1;
+                       case 3:
+                               PrintAndLog("Hex must have even number of digits.");
+                               return 1;
+                       }
+                       
+                       // we get all the hex to end of line with spaces
+                       break;
+               }
+               
+               cmdp++;
+       }
+
+       PrintAndLog("--%s %s %s >>>> %s", activateField ? "sel": "", leaveSignalON ? "keep": "", decodeTLV ? "TLV": "", sprint_hex(data, datalen));
+       
+       switch(ExchangeAPDU14a(data, datalen, activateField, leaveSignalON, data, &datalen)) {
+               case 0:
+                       break;
+               case 1:
+                       PrintAndLog("APDU ERROR: Send APDU error.");
+                       return 1;
+               case 2:
+                       return 2;
+               case 3:
+                       return 3;
+               case 4:
+                       return 4;
+               default:
+                       return 5;
+       }
+
+       PrintAndLog("<<<< %s", sprint_hex(data, datalen));
+       
+       PrintAndLog("APDU response: %02x %02x", data[datalen - 2], data[datalen - 1]); // TODO add APDU descriptions
+
+       // here TLV decoder...
+       if (decodeTLV) {
+               PrintAndLog("--- TLV decoded:");
+       }
+       
+       return 0;
+}
+
 int CmdHF14ACmdRaw(const char *cmd) {
        UsbCommand c = {CMD_READER_ISO_14443a, {0, 0, 0}};
        bool reply=1;
@@ -767,17 +862,17 @@ int CmdHF14ACmdRaw(const char *cmd) {
        SendCommand(&c);
 
        if (reply) {
-               if(active_select)
-                       waitCmd(1);
-               if(datalen>0)
+               int res = 0;
+               if (active_select)
+                       res = waitCmd(1);
+               if (!res && datalen > 0)
                        waitCmd(0);
        } // if reply
        return 0;
 }
 
 
-static void waitCmd(uint8_t iSelect)
-{
+static int waitCmd(uint8_t iSelect) {
     uint8_t *recv;
     UsbCommand resp;
     char *hexout;
@@ -787,7 +882,7 @@ static void waitCmd(uint8_t iSelect)
         uint8_t iLen = iSelect ? resp.arg[1] : resp.arg[0];
         PrintAndLog("received %i octets", iLen);
         if(!iLen)
-            return;
+            return 1;
         hexout = (char *)malloc(iLen * 3 + 1);
         if (hexout != NULL) {
             for (int i = 0; i < iLen; i++) { // data in hex
@@ -797,10 +892,13 @@ static void waitCmd(uint8_t iSelect)
             free(hexout);
         } else {
             PrintAndLog("malloc failed your client has low memory?");
+                       return 2;
         }
     } else {
         PrintAndLog("timeout while waiting for reply.");
+               return 3;
     }
+       return 0;
 }
 
 static command_t CommandTable[] = 
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