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CHG: removed unused variable
[proxmark3-svn] / client / cmdlfhid.c
diff --git a/client/cmdlfhid.c b/client/cmdlfhid.c
index b9d3ace32188a49aa9af9780af9276988b4945e0..11d996b7b3f92e474eca337063e17b8123057285 100644 (file)
--- a/client/cmdlfhid.c
+++ b/client/cmdlfhid.c
@@ -51,19 +51,51 @@ int usage_lf_hid_clone(void){
 }
 int usage_lf_hid_brute(void){
        PrintAndLog("Enables bruteforce of HID readers with specified facility code.");
 }
 int usage_lf_hid_brute(void){
        PrintAndLog("Enables bruteforce of HID readers with specified facility code.");
-       PrintAndLog("Different formatlength is supported");
-       PrintAndLog("This is a incremental attack against reader.");
+       PrintAndLog("This is a attack against reader. if cardnumber is given, it starts with it and goes up / down one step");
+       PrintAndLog("if cardnumber is not given, it starts with 1 and goes up to 65535");
        PrintAndLog("");
        PrintAndLog("");
-       PrintAndLog("Usage:  lf hid brute [h] <format length> <facility code>");
+       PrintAndLog("Usage:  lf hid brute [h] a <format> f <facility-code> c <cardnumber> d <delay>");
        PrintAndLog("Options :");
        PrintAndLog("Options :");
-       PrintAndLog("  h                                - This help");  
-       PrintAndLog("  <format length>  - 26|33|34|35|37|40|44|84");
-       PrintAndLog("  <facility code>  - 8-bit value HID facility code");
+       PrintAndLog("       h                 :  This help");   
+       PrintAndLog("       a <format>        :  26|33|34|35|37|40|44|84");
+       PrintAndLog("       f <facility-code> :  8-bit value HID facility code");
+       PrintAndLog("       c <cardnumber>    :  (optional) cardnumber to start with, max 65535");
+       PrintAndLog("       d <delay>         :  delay betweens attempts in ms. Default 1000ms");
        PrintAndLog("");
        PrintAndLog("");
-       PrintAndLog("Sample  : lf hid brute 26 224");
+       PrintAndLog("Samples:");
+       PrintAndLog("       lf hid brute a 26 f 224");
+       PrintAndLog("       lf hid brute a 26 f 21 d 2000");
+       PrintAndLog("       lf hid brute a 26 f 21 c 200 d 2000");
        return 0;
 }
 
        return 0;
 }
 
+static int sendPing(void){
+       UsbCommand ping = {CMD_PING, {1, 2, 3}};
+       SendCommand(&ping);
+       SendCommand(&ping);     
+       SendCommand(&ping);     
+       clearCommandBuffer();
+       UsbCommand resp;
+       if (WaitForResponseTimeout(CMD_ACK, &resp, 1000))
+               return 0;
+       return 1;
+}
+static bool sendTry(uint8_t fmtlen, uint32_t fc, uint32_t cn, uint32_t delay, uint8_t *bs){
+
+       PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
+       
+       calcWiegand( fmtlen, fc, cn, bs);
+
+       uint64_t arg1 = bytebits_to_byte(bs,32);
+       uint64_t arg2 = bytebits_to_byte(bs+32,32);
+       UsbCommand c = {CMD_HID_SIM_TAG, {arg1, arg2, 0}}; 
+       clearCommandBuffer();
+       SendCommand(&c);
+       msleep(delay);
+       sendPing();
+       return TRUE;
+}
+
 int CmdHIDDemodFSK(const char *Cmd) {
        int findone = ( Cmd[0] == '1' ) ? 1 : 0;
        UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0 , 0}};
 int CmdHIDDemodFSK(const char *Cmd) {
        int findone = ( Cmd[0] == '1' ) ? 1 : 0;
        UsbCommand c = {CMD_HID_DEMOD_FSK, {findone, 0 , 0}};
@@ -273,7 +305,7 @@ void calc26(uint16_t fc, uint32_t cardno, uint8_t *out){
        // *hi = (cardno >> 31);  
 // }
 
        // *hi = (cardno >> 31);  
 // }
 
-static void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){
+void calcWiegand(uint8_t fmtlen, uint16_t fc, uint64_t cardno, uint8_t *bits){
 
        // uint32_t hi = 0, lo = 0;
        // uint32_t cn32 = (cardno & 0xFFFFFFFF);
 
        // uint32_t hi = 0, lo = 0;
        // uint32_t cn32 = (cardno & 0xFFFFFFFF);
@@ -319,7 +351,8 @@ int CmdHIDWiegand(const char *Cmd) {
        uint32_t oem = 0, fc = 0;
        uint64_t cardnum = 0;
        
        uint32_t oem = 0, fc = 0;
        uint64_t cardnum = 0;
        
-       uint32_t blocks[2], wiegand[2];
+       uint32_t blocks[2] = {0,0};
+       uint32_t wiegand[2] = {0,0}; 
 
        uint8_t bits[96];
        uint8_t *bs = bits;
 
        uint8_t bits[96];
        uint8_t *bs = bits;
@@ -358,67 +391,99 @@ int CmdHIDWiegand(const char *Cmd) {
 
 int CmdHIDBrute(const char *Cmd){
        
 
 int CmdHIDBrute(const char *Cmd){
        
-       bool error = TRUE;
-       uint8_t fc = 0, fmtlen = 0;
-
+       bool errors = false;
+       uint32_t fc = 0, cn = 0, delay = 1000;
+       uint8_t fmtlen = 0;
        uint8_t bits[96];
        uint8_t *bs = bits;
        memset(bs, 0, sizeof(bits));
        uint8_t bits[96];
        uint8_t *bs = bits;
        memset(bs, 0, sizeof(bits));
-
-       UsbCommand c = {CMD_HID_SIM_TAG, {0, 0, 0}};  
-       
-       char cmdp = param_getchar(Cmd, 0);
-       if (strlen(Cmd) > 2 || strlen(Cmd) == 0 || cmdp == 'h' || cmdp == 'H') return usage_lf_hid_brute();
-
-       fmtlen = param_get8(Cmd, 0);
-       uint8_t ftms[] = {26,33,34,35,37};
-       for ( uint8_t i = 0; i < sizeof(ftms); i++){
-               if ( ftms[i] == fmtlen ) {
-                       error = FALSE;
+       uint8_t cmdp = 0;
+               
+       while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {
+               switch(param_getchar(Cmd, cmdp)) {
+               case 'h':
+               case 'H':
+                       return usage_lf_hid_brute();
+               case 'f':
+               case 'F':
+                       fc =  param_get32ex(Cmd ,cmdp+1, 0, 10);
+                       if ( !fc )
+                               errors = true;
+                       cmdp += 2;
+                       break;
+               case 'd':
+               case 'D':
+                       // delay between attemps,  defaults to 1000ms. 
+                       delay = param_get32ex(Cmd, cmdp+1, 1000, 10);
+                       cmdp += 2;
+                       break;
+               case 'c':
+               case 'C':
+                       cn = param_get32ex(Cmd, cmdp+1, 0, 10);
+                       // truncate cardnumber.
+                       cn &= 0xFFFF;
+                       cmdp += 2;
+                       break;
+               case 'a':
+               case 'A':
+                       fmtlen = param_get8(Cmd, cmdp+1);                       
+                       cmdp += 2;
+                       bool is_ftm_ok = FALSE;
+                       uint8_t ftms[] = {26,33,34,35,37};
+                       for ( uint8_t i = 0; i < sizeof(ftms); i++){
+                               if ( ftms[i] == fmtlen ) {
+                                       is_ftm_ok = TRUE;
+                               }
+                       }
+                       // negated
+                       errors = !is_ftm_ok;
+                       break;
+               default:
+                       PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));
+                       errors = true;
+                       break;
                }
        }
                }
        }
-
-       if ( error ) return usage_lf_hid_brute();
-       
-       fc =  param_get8(Cmd, 1);
-       if ( fc == 0) return usage_lf_hid_brute();
+       if ( fc == 0 ) errors = true;
+       if ( errors ) return usage_lf_hid_brute();
        
        PrintAndLog("Brute-forcing HID reader");
        PrintAndLog("Press pm3-button to abort simulation or run another command");
        
        PrintAndLog("Brute-forcing HID reader");
        PrintAndLog("Press pm3-button to abort simulation or run another command");
-
-       for ( uint16_t cn = 1; cn < 0xFFFF; ++cn){
+       
+       uint16_t up = cn;
+       uint16_t down = cn;
+       
+       for (;;){
+               
+               if ( offline ) {
+                       printf("Device offline\n");
+                       return  2;
+               }
+               
                if (ukbhit()) {
                        PrintAndLog("aborted via keyboard!");
                if (ukbhit()) {
                        PrintAndLog("aborted via keyboard!");
-                       c.cmd = CMD_PING;
-                       c.arg[0] = 0x00;
-                       c.arg[1] = 0x00;
-                       c.arg[2] = 0x00;
-                       clearCommandBuffer();
-                       SendCommand(&c);
-                       return 1;
+                       return sendPing();
                }
                }
-
-               calcWiegand( fmtlen, fc, cn, bs);
-
-               c.arg[0] = bytebits_to_byte(bs,32);
-               c.arg[1] = bytebits_to_byte(bs+32,32);
-               clearCommandBuffer();
-               SendCommand(&c);
                
                
-               PrintAndLog("Trying FC: %u; CN: %u", fc, cn);
-               // pause
-               sleep(1);
+               // Do one up
+               if ( up < 0xFFFF )
+                       if ( !sendTry(fmtlen, fc, up++, delay, bs)) return 1;
+               
+               // Do one down  (if cardnumber is given)
+               if ( cn > 1 )
+                       if ( down > 1 )
+                               if ( !sendTry(fmtlen, fc, --down, delay, bs)) return 1;
        }
        return 0;
 }
 
 static command_t CommandTable[] = {
        {"help",    CmdHelp,        1, "This help"},
        }
        return 0;
 }
 
 static command_t CommandTable[] = {
        {"help",    CmdHelp,        1, "This help"},
-       {"fskdemod",CmdHIDDemodFSK, 0, "[1] Realtime HID FSK demodulator (option '1' for one tag only)"},
-       {"sim",     CmdHIDSim,      0, "<ID> -- HID tag simulator"},
-       {"clone",   CmdHIDClone,    0, "<ID> [L] -- Clone HID to T55x7"},
-       {"wiegand", CmdHIDWiegand,  0, "<OEM> <facility code> <card number> -- convert facility code/card number to Wiegand code"},
-       {"brute",   CmdHIDBrute, 0, "<format length> <facility code> -- brute force card number"},
+       {"fskdemod",CmdHIDDemodFSK, 0, "Realtime HID FSK demodulator"},
+       {"sim",     CmdHIDSim,      0, "HID tag simulator"},
+       {"clone",   CmdHIDClone,    0, "Clone HID to T55x7"},
+       {"wiegand", CmdHIDWiegand,  0, "Convert facility code/card number to Wiegand code"},
+       {"brute",   CmdHIDBrute,        0, "Bruteforce card number against reader"},
        {NULL, NULL, 0, NULL}
 };
 
        {NULL, NULL, 0, NULL}
 };
 
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