]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdlft55xx.c
ADD: @marshmellow42 's fixes for Q5, t55xx, fskclock,
[proxmark3-svn] / client / cmdlft55xx.c
index de0ade283813695a73ccaa99b55aad4cf3a5803d..75c1a1f8f8ccb197a6e6c1bc225af0dec1842516 100644 (file)
@@ -150,12 +150,14 @@ int usage_t55xx_wakup(){
        return 0;\r
 }\r
 int usage_t55xx_bruteforce(){\r
-    PrintAndLog("Usage: lf t55xx bruteforce <start password> <end password> [i <*.dic>]");\r
-    PrintAndLog("       password must be 4 bytes (8 hex symbols)");\r
        PrintAndLog("This command uses A) bruteforce to scan a number range");\r
        PrintAndLog("                  B) a dictionary attack");\r
+    PrintAndLog("Usage: lf t55xx bruteforce <start password> <end password> [i <*.dic>]");\r
+    PrintAndLog("       password must be 4 bytes (8 hex symbols)");\r
        PrintAndLog("Options:");\r
        PrintAndLog("     h                     - this help");\r
+       PrintAndLog("     <start_pwd> - 4 byte hex value to start pwd search at");\r
+       PrintAndLog("     <end_pwd>   - 4 byte hex value to end pwd search at");\r
     PrintAndLog("     i <*.dic>        - loads a default keys dictionary file <*.dic>");\r
     PrintAndLog("");\r
     PrintAndLog("Examples:");\r
@@ -181,7 +183,6 @@ int CmdT55xxSetConfig(const char *Cmd) {
        uint8_t bitRate = 0;\r
        uint8_t rates[9] = {8,16,32,40,50,64,100,128,0};\r
        uint8_t cmdp = 0;\r
-       config.Q5 = FALSE;\r
        bool errors = FALSE;\r
        while(param_getchar(Cmd, cmdp) != 0x00 && !errors)\r
        {\r
@@ -384,11 +385,12 @@ bool DecodeT55xxBlock(){
                        ans = ASKDemod(cmdStr, FALSE, FALSE, 1);\r
                        break;\r
                case DEMOD_PSK1:\r
-                       // skip first 16 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)\r
+                       // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)\r
                        save_restoreGB(1);\r
                        CmdLtrim("160");\r
                        snprintf(cmdStr, sizeof(buf),"%d %d 6", bitRate[config.bitrate], config.inverted );\r
                        ans = PSKDemod(cmdStr, FALSE);\r
+                       //undo trim samples\r
                        save_restoreGB(0);\r
                        break;\r
                case DEMOD_PSK2: //inverted won't affect this\r
@@ -399,7 +401,8 @@ bool DecodeT55xxBlock(){
                        snprintf(cmdStr, sizeof(buf),"%d 0 6", bitRate[config.bitrate] );\r
                        ans = PSKDemod(cmdStr, FALSE);\r
                        psk1TOpsk2(DemodBuffer, DemodBufferLen);\r
-                       save_restoreGB(1);\r
+                       //undo trim samples\r
+                       save_restoreGB(0);\r
                        break;\r
                case DEMOD_NRZ:\r
                        snprintf(cmdStr, sizeof(buf),"%d %d 1", bitRate[config.bitrate], config.inverted );\r
@@ -417,7 +420,6 @@ bool DecodeT55xxBlock(){
 }\r
 \r
 int CmdT55xxDetect(const char *Cmd){\r
-\r
        bool errors = FALSE;\r
        bool useGB = FALSE;\r
        bool usepwd = FALSE;\r
@@ -465,7 +467,6 @@ bool tryDetectModulation(){
        t55xx_conf_block_t tests[15];\r
        int bitRate=0;\r
        uint8_t fc1 = 0, fc2 = 0, clk=0;\r
-       save_restoreGB(1);\r
        \r
        if (GetFskClock("", FALSE, FALSE)){ \r
                fskClocks(&fc1, &fc2, &clk, FALSE);\r
@@ -486,7 +487,6 @@ bool tryDetectModulation(){
                                tests[hits].modulation = DEMOD_FSK1;\r
                        else if (fc1 == 10 && fc2 == 8)\r
                                tests[hits].modulation = DEMOD_FSK2a;\r
-\r
                        tests[hits].bitrate = bitRate;\r
                        tests[hits].inverted = TRUE;\r
                        tests[hits].block0 = PackBits(tests[hits].offset, 32, DemodBuffer);\r
@@ -525,7 +525,7 @@ bool tryDetectModulation(){
                        }\r
                }\r
                //undo trim from ask\r
-               save_restoreGB(0);\r
+               //save_restoreGB(0);\r
                clk = GetNrzClock("", FALSE, FALSE);\r
                if (clk>0) {\r
                        if ( NRZrawDemod("0 0 1", FALSE)  && test(DEMOD_NRZ, &tests[hits].offset, &bitRate, clk, &tests[hits].Q5)) {\r
@@ -545,9 +545,9 @@ bool tryDetectModulation(){
                        }\r
                }\r
                \r
-               //undo trim from nrz\r
-               save_restoreGB(0);\r
+               // allow undo\r
                // skip first 160 samples to allow antenna to settle in (psk gets inverted occasionally otherwise)\r
+               save_restoreGB(1);\r
                CmdLtrim("160");\r
                clk = GetPskClock("", FALSE, FALSE);\r
                if (clk>0) {\r
@@ -588,14 +588,16 @@ bool tryDetectModulation(){
                                }\r
                        } // inverse waves does not affect this demod\r
                }\r
+               //undo trim samples\r
+               save_restoreGB(0);\r
        }               \r
-       save_restoreGB(0);      \r
        if ( hits == 1) {\r
                config.modulation = tests[0].modulation;\r
                config.bitrate = tests[0].bitrate;\r
                config.inverted = tests[0].inverted;\r
                config.offset = tests[0].offset;\r
                config.block0 = tests[0].block0;\r
+               config.Q5 = tests[0].Q5;\r
                printConfiguration( config );\r
                return TRUE;\r
        }\r
@@ -671,6 +673,15 @@ bool testQ5Modulation(uint8_t      mode, uint8_t   modread){
        return FALSE;\r
 }\r
 \r
+int convertQ5bitRate(uint8_t bitRateRead) {\r
+       uint8_t expected[] = {8, 16, 32, 40, 50, 64, 100, 128};\r
+       for (int i=0; i<8; i++)\r
+               if (expected[i] == bitRateRead)\r
+                       return i;\r
+\r
+       return -1;\r
+}\r
+\r
 bool testQ5(uint8_t mode, uint8_t *offset, int *fndBitRate, uint8_t    clk){\r
 \r
        if ( DemodBufferLen < 64 ) return FALSE;\r
@@ -682,12 +693,12 @@ bool testQ5(uint8_t mode, uint8_t *offset, int *fndBitRate, uint8_t       clk){
                uint8_t safer     = PackBits(si, 4, DemodBuffer); si += 4;     //master key\r
                uint8_t resv      = PackBits(si, 8, DemodBuffer); si += 8;\r
                // 2nibble must be zeroed.\r
-               if (safer != 0x6) continue;\r
+               if (safer != 0x6 && safer != 0x9) continue;\r
                if ( resv > 0x00) continue;\r
                //uint8_t       pageSel   = PackBits(si, 1, DemodBuffer); si += 1;\r
                //uint8_t fastWrite = PackBits(si, 1, DemodBuffer); si += 1;\r
                si += 1+1;\r
-               int bitRate       = PackBits(si, 5, DemodBuffer)*2 + 2; si += 5;     //bit rate\r
+               int bitRate       = PackBits(si, 6, DemodBuffer)*2 + 2; si += 6;     //bit rate\r
                if (bitRate > 128 || bitRate < 8) continue;\r
 \r
                //uint8_t AOR       = PackBits(si, 1, DemodBuffer); si += 1;   \r
@@ -702,7 +713,8 @@ bool testQ5(uint8_t mode, uint8_t *offset, int *fndBitRate, uint8_t clk){
                //test modulation\r
                if (!testQ5Modulation(mode, modread)) continue;\r
                if (bitRate != clk) continue;\r
-               *fndBitRate = bitRate;\r
+               *fndBitRate = convertQ5bitRate(bitRate);\r
+               if (*fndBitRate < 0) continue;\r
                *offset = idx;\r
 \r
                return TRUE;\r
@@ -1117,35 +1129,16 @@ char * GetBitRateStr(uint32_t id){
 \r
        char *retStr = buf;\r
                switch (id){\r
-               case 0: \r
-                       snprintf(retStr,sizeof(buf),"%d - RF/8",id);\r
-                       break;\r
-               case 1:\r
-                       snprintf(retStr,sizeof(buf),"%d - RF/16",id);\r
-                       break;\r
-               case 2:         \r
-                       snprintf(retStr,sizeof(buf),"%d - RF/32",id);\r
-                       break;\r
-               case 3:\r
-                       snprintf(retStr,sizeof(buf),"%d - RF/40",id);\r
-                       break;\r
-               case 4:\r
-                       snprintf(retStr,sizeof(buf),"%d - RF/50",id);\r
-                       break;\r
-               case 5:\r
-                       snprintf(retStr,sizeof(buf),"%d - RF/64",id);\r
-                       break;\r
-               case 6:\r
-                       snprintf(retStr,sizeof(buf),"%d - RF/100",id);\r
-                       break;\r
-               case 7:\r
-                       snprintf(retStr,sizeof(buf),"%d - RF/128",id);\r
-                       break;\r
-               default:\r
-                       snprintf(retStr,sizeof(buf),"%d - (Unknown)",id);\r
-                       break;\r
+               case 0:   snprintf(retStr,sizeof(buf),"%d - RF/8",id);   break;\r
+               case 1:   snprintf(retStr,sizeof(buf),"%d - RF/16",id);  break;\r
+               case 2:   snprintf(retStr,sizeof(buf),"%d - RF/32",id);  break;\r
+               case 3:   snprintf(retStr,sizeof(buf),"%d - RF/40",id);  break;\r
+               case 4:   snprintf(retStr,sizeof(buf),"%d - RF/50",id);  break;\r
+               case 5:   snprintf(retStr,sizeof(buf),"%d - RF/64",id);  break;\r
+               case 6:   snprintf(retStr,sizeof(buf),"%d - RF/100",id); break;\r
+               case 7:   snprintf(retStr,sizeof(buf),"%d - RF/128",id); break;\r
+               default:  snprintf(retStr,sizeof(buf),"%d - (Unknown)",id); break;\r
                }\r
-\r
        return buf;\r
 }\r
 \r
@@ -1476,7 +1469,7 @@ int CmdT55xxBruteForce(const char *Cmd) {
 \r
 static command_t CommandTable[] = {\r
        {"help",                CmdHelp,           1, "This help"},\r
-       {"bruteforce",  CmdT55xxBruteForce,0, "Simple bruteforce attack to find password"},\r
+       {"bruteforce",CmdT55xxBruteForce,0, "<start password> <end password> [i <*.dic>] Simple bruteforce attack to find password"},\r
        {"config",              CmdT55xxSetConfig, 1, "Set/Get T55XX configuration (modulation, inverted, offset, rate)"},\r
        {"detect",              CmdT55xxDetect,    1, "[1] Try detecting the tag modulation from reading the configuration block."},\r
        {"dump",                CmdT55xxDump,      0, "[password] [o] Dump T55xx card block 0-7. Optional [password], [override]"},\r
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