change `ul_switch_off_field` to `DropField` fix #473

[proxmark3-svn] / client / cmdhficlass.c

diff --git a/client/cmdhficlass.c b/client/cmdhficlass.c
index 05ca39e4e7e2f7c2963e0028925cced58d9f415d..63634cd403e1dcf98d4fc7b87304c4d26f700f1f 100644 (file)
--- a/client/cmdhficlass.c
+++ b/client/cmdhficlass.c
@@ -23,7 +23,7 @@
 #include "common.h"
 #include "util.h"
 #include "cmdmain.h"
-#include "loclass/des.h"
+#include "polarssl/des.h"
 #include "loclass/cipherutils.h"
 #include "loclass/cipher.h"
 #include "loclass/ikeys.h"
@@ -191,8 +191,12 @@ int HFiClassReader(const char *Cmd, bool loop, bool verbose) {
                        uint8_t readStatus = resp.arg[0] & 0xff;
                        uint8_t *data = resp.d.asBytes;
 
-                       // no tag found
-                       if( readStatus == 0) continue;
+                       // no tag found or button pressed
+                       if( (readStatus == 0 && !loop) || readStatus == 0xFF) {
+                               // abort
+                               if (verbose) PrintAndLog("Quitting...");
+                               return 0;
+                       }
 
                        if( readStatus & FLAG_ICLASS_READER_CSN) {
                                PrintAndLog("   CSN: %s",sprint_hex(data,8));
@@ -679,7 +683,7 @@ int CmdHFiClassReader_Dump(const char *Cmd) {
        SendCommand(&c);
        if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) {
                PrintAndLog("Command execute timeout");
-               ul_switch_off_field();
+               DropField();
                return 0;
        }
        uint8_t readStatus = resp.arg[0] & 0xff;
@@ -687,7 +691,7 @@ int CmdHFiClassReader_Dump(const char *Cmd) {
 
        if(readStatus == 0){
                PrintAndLog("No tag found...");
-               ul_switch_off_field();
+               DropField();
                return 0;
        }
        if( readStatus & (FLAG_ICLASS_READER_CSN|FLAG_ICLASS_READER_CONF|FLAG_ICLASS_READER_CC)){
@@ -698,12 +702,12 @@ int CmdHFiClassReader_Dump(const char *Cmd) {
                // large memory - not able to dump pages currently
                if (numblks > maxBlk) numblks = maxBlk;
        }
-       ul_switch_off_field();
+       DropField();
        // authenticate debit key and get div_key - later store in dump block 3
        if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, false)){
                //try twice - for some reason it sometimes fails the first time...
                if (!select_and_auth(KEY, MAC, div_key, use_credit_key, elite, rawkey, false)){
-                       ul_switch_off_field();
+                       DropField();
                        return 0;
                }
        }
@@ -714,14 +718,14 @@ int CmdHFiClassReader_Dump(const char *Cmd) {
        SendCommand(&w);
        if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) {
                PrintAndLog("Command execute time-out 1");
-               ul_switch_off_field();
+               DropField();
                return 1;
        }
        uint32_t blocksRead = resp.arg[1];
        uint8_t isOK = resp.arg[0] & 0xff;
        if (!isOK && !blocksRead) {
                PrintAndLog("Read Block Failed");
-               ul_switch_off_field();
+               DropField();
                return 0;
        }
        uint32_t startindex = resp.arg[2];
@@ -737,13 +741,13 @@ int CmdHFiClassReader_Dump(const char *Cmd) {
        // try AA2
        if (have_credit_key) {
                //turn off hf field before authenticating with different key
-               ul_switch_off_field();
+               DropField();
                memset(MAC,0,4);
                // AA2 authenticate credit key and git c_div_key - later store in dump block 4
                if (!select_and_auth(CreditKEY, MAC, c_div_key, true, false, false, false)){
                        //try twice - for some reason it sometimes fails the first time...
                        if (!select_and_auth(CreditKEY, MAC, c_div_key, true, false, false, false)){
-                               ul_switch_off_field();
+                               DropField();
                                return 0;
                        }
                }
@@ -756,14 +760,14 @@ int CmdHFiClassReader_Dump(const char *Cmd) {
                        SendCommand(&w);
                        if (!WaitForResponseTimeout(CMD_ACK, &resp, 4500)) {
                                PrintAndLog("Command execute timeout 2");
-                               ul_switch_off_field();
+                               DropField();
                                return 0;
                        }
                        uint8_t isOK = resp.arg[0] & 0xff;
                        blocksRead = resp.arg[1];
                        if (!isOK && !blocksRead) {
                                PrintAndLog("Read Block Failed 2");
-                               ul_switch_off_field();
+                               DropField();
                                return 0;
                        }               
 
@@ -778,7 +782,7 @@ int CmdHFiClassReader_Dump(const char *Cmd) {
 
                        gotBytes += blocksRead*8;                       
                } else { //field is still on - turn it off...
-                       ul_switch_off_field();
+                       DropField();
                }
        }
 
@@ -926,7 +930,7 @@ int CmdHFiClass_WriteBlock(const char *Cmd) {
 
        if (cmdp < 6) return usage_hf_iclass_writeblock();
        int ans = WriteBlock(blockno, bldata, KEY, use_credit_key, elite, rawkey, true);
-       ul_switch_off_field();
+       DropField();
        return ans;
 }
 
@@ -1708,7 +1712,7 @@ static command_t CommandTable[] =
        {"loclass",     CmdHFiClass_loclass,            1,      "[options..] Use loclass to perform bruteforce of reader attack dump"},
        {"managekeys",  CmdHFiClassManageKeys,          1,      "[options..] Manage the keys to use with iClass"},
        {"readblk",     CmdHFiClass_ReadBlock,          0,      "[options..] Authenticate and Read iClass block"},
-       {"reader",      CmdHFiClassReader,              0,      "            Read an iClass tag"},
+       {"reader",      CmdHFiClassReader,              0,      "            Look for iClass tags until a key or the pm3 button is pressed"},
        {"readtagfile", CmdHFiClassReadTagFile,         1,      "[options..] Display Content from tagfile"},
        {"replay",      CmdHFiClassReader_Replay,       0,      "<mac>       Read an iClass tag via Reply Attack"},
        {"sim",         CmdHFiClassSim,                 0,      "[options..] Simulate iClass tag"},