]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdlft55xx.c
CHG: move some methods, its easier to read now. Cosmetic change.
[proxmark3-svn] / client / cmdlft55xx.c
index 3611cd4ff9f6f19ee6dc1e1b6bae1a93e03e3339..28956fdc756c67e90370c81c31ef582203a9f4db 100644 (file)
 \r
 #define CONFIGURATION_BLOCK 0x00\r
 #define TRACE_BLOCK 0x01\r
+#define T55x7_PWD      0x00000010\r
 \r
 // Default configuration\r
 t55xx_conf_block_t config = { .modulation = DEMOD_ASK, .inverted = FALSE, .offset = 0x00, .block0 = 0x00};\r
 \r
 int usage_t55xx_config(){\r
        PrintAndLog("Usage: lf t55xx config [d <demodulation>] [i 1] [o <offset>]");\r
-       PrintAndLog("Options:        ");\r
+       PrintAndLog("Options:");\r
        PrintAndLog("       h                        This help");\r
        PrintAndLog("       b <8|16|32|40|50|64|100|128>     Set bitrate");\r
        PrintAndLog("       d <FSK|FSK1|FSK1a|FSK2|FSK2a|ASK|PSK1|PSK2|NRZ|BI|BIa>  Set demodulation FSK / ASK / PSK / NRZ / Biphase / Biphase A");\r
@@ -49,30 +50,39 @@ int usage_t55xx_config(){
        return 0;\r
 }\r
 int usage_t55xx_read(){\r
-       PrintAndLog("Usage:  lf t55xx read <block> <password>");\r
-    PrintAndLog("     <block>, block number to read. Between 0-7");\r
-    PrintAndLog("     <password>, OPTIONAL password (8 hex characters)");\r
+       PrintAndLog("Usage:  lf t55xx read b <block> p <password> <override_safety> <wakeup>");\r
+       PrintAndLog("Options:");\r
+    PrintAndLog("     b <block>,       block number to read. Between 0-7");\r
+    PrintAndLog("     p <password>, OPTIONAL password 4bytes (8 hex symbols)");\r
+       PrintAndLog("     o,                    OPTIONAL override safety check");\r
+       PrintAndLog("     w,                    OPTIONAL wakeup");\r
+       PrintAndLog("     ****WARNING****");\r
+       PrintAndLog("     Use of read with password on a tag not configured for a pwd");\r
+       PrintAndLog("     can damage the tag");\r
     PrintAndLog("");\r
        PrintAndLog("Examples:");\r
-    PrintAndLog("      lf t55xx read 0           - read data from block 0");\r
-       PrintAndLog("      lf t55xx read 0 feedbeef  - read data from block 0 password feedbeef");\r
+    PrintAndLog("      lf t55xx read b 0                               - read data from block 0");\r
+       PrintAndLog("      lf t55xx read b 0 p feedbeef         - read data from block 0 password feedbeef");\r
+       PrintAndLog("      lf t55xx read b 0 p feedbeef o       - read data from block 0 password feedbeef safety check");\r
        PrintAndLog("");\r
        return 0;\r
 }\r
 int usage_t55xx_write(){\r
-       PrintAndLog("Usage:  lf t55xx wr <block> <data> [password]");\r
+       PrintAndLog("Usage:  lf t55xx write <block> <data> [password]");\r
+       PrintAndLog("Options:");\r
        PrintAndLog("     <block>, block number to write. Between 0-7");\r
-       PrintAndLog("     <data>,  4 bytes of data to write (8 hex characters)");\r
-    PrintAndLog("     [password], OPTIONAL password 4bytes (8 hex characters)");\r
+       PrintAndLog("     <data>,  4 bytes of data to write (8 hex symbols)");\r
+    PrintAndLog("     [password], OPTIONAL password 4bytes (8 hex symbols)");\r
     PrintAndLog("");\r
        PrintAndLog("Examples:");\r
-       PrintAndLog("      lf t55xx wr 3 11223344           - write 11223344 to block 3");\r
-       PrintAndLog("      lf t55xx wr 3 11223344 feedbeef  - write 11223344 to block 3 password feedbeef");\r
+       PrintAndLog("      lf t55xx write 3 11223344           - write 11223344 to block 3");\r
+       PrintAndLog("      lf t55xx write 3 11223344 feedbeef  - write 11223344 to block 3 password feedbeef");\r
        PrintAndLog("");\r
        return 0;\r
 }\r
 int usage_t55xx_trace() {\r
        PrintAndLog("Usage:  lf t55xx trace [1]");\r
+       PrintAndLog("Options:");\r
        PrintAndLog("     [graph buffer data], if set, use Graphbuffer otherwise read data from tag.");\r
        PrintAndLog("");\r
        PrintAndLog("Examples:");\r
@@ -83,6 +93,7 @@ int usage_t55xx_trace() {
 }\r
 int usage_t55xx_info() {\r
        PrintAndLog("Usage:  lf t55xx info [1]");\r
+       PrintAndLog("Options:");\r
        PrintAndLog("     [graph buffer data], if set, use Graphbuffer otherwise read data from tag.");\r
        PrintAndLog("");\r
        PrintAndLog("Examples:");\r
@@ -93,6 +104,7 @@ int usage_t55xx_info() {
 }\r
 int usage_t55xx_dump(){\r
        PrintAndLog("Usage:  lf t55xx dump <password>");\r
+       PrintAndLog("Options:");\r
     PrintAndLog("     <password>, OPTIONAL password 4bytes (8 hex symbols)");\r
        PrintAndLog("");\r
        PrintAndLog("Examples:");\r
@@ -102,7 +114,9 @@ int usage_t55xx_dump(){
        return 0;\r
 }\r
 int usage_t55xx_detect(){\r
-       PrintAndLog("Usage:  lf t55xx detect");\r
+       PrintAndLog("Usage:  lf t55xx detect [1]");\r
+       PrintAndLog("Options:");\r
+       PrintAndLog("     [graph buffer data], if set, use Graphbuffer otherwise read data from tag.");\r
        PrintAndLog("");\r
        PrintAndLog("Examples:");\r
        PrintAndLog("      lf t55xx detect");\r
@@ -110,6 +124,17 @@ int usage_t55xx_detect(){
        PrintAndLog("");\r
        return 0;\r
 }\r
+int usage_t55xx_wakup(){\r
+       PrintAndLog("Usage:  lf t55xx wakeup [h] p <password>");\r
+       PrintAndLog("This commands send the Answer-On-Request command and leaves the readerfield ON afterwards.");\r
+       PrintAndLog("Options:");\r
+       PrintAndLog("     h                     - this help");\r
+    PrintAndLog("     p <password>     - password 4bytes (8 hex symbols)");\r
+    PrintAndLog("");\r
+       PrintAndLog("Examples:");\r
+    PrintAndLog("      lf t55xx wakeup p 11223344  - send wakeup password");\r
+       return 0;\r
+}\r
 \r
 static int CmdHelp(const char *Cmd);\r
 \r
@@ -215,31 +240,73 @@ int CmdT55xxSetConfig(const char *Cmd) {
 }\r
 \r
 int CmdT55xxReadBlock(const char *Cmd) {\r
-       int block = -1;\r
-       int password = 0xFFFFFFFF; //default to blank Block 7\r
-\r
-       char cmdp = param_getchar(Cmd, 0);\r
-       if (cmdp == 'h' || cmdp == 'H')\r
-               return usage_t55xx_read();\r
-\r
-       int res = sscanf(Cmd, "%d %x", &block, &password);\r
-\r
-       if ( res < 1 || res > 2 )\r
+       uint8_t block = 255;\r
+       uint8_t wake = 0;\r
+       uint8_t usepwd = 0;\r
+       uint32_t password = 0xFFFFFFFF; //default to blank Block 7\r
+       uint8_t override = 0;\r
+       uint8_t cmdp = 0;\r
+       bool errors = false;\r
+       while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {\r
+               switch(param_getchar(Cmd, cmdp)) {\r
+               case 'h':\r
+               case 'H':\r
                return usage_t55xx_read();\r
-\r
-       \r
-       if ((block < 0) | (block > 7)) {\r
+               case 'b':\r
+               case 'B':\r
+                       errors |= param_getdec(Cmd, cmdp+1, &block);\r
+                       cmdp+=2;\r
+                       break;\r
+               case 'o':\r
+               case 'O':\r
+                       override = 1;\r
+                       cmdp++;\r
+                       break;\r
+               case 'p':\r
+               case 'P':\r
+                       password = param_get32ex(Cmd, cmdp+1, 0, 10);\r
+                       usepwd = 1;\r
+                       cmdp+=2;\r
+                       break;\r
+               case 'w':\r
+               case 'W':\r
+                       wake = 1;\r
+                       cmdp++;\r
+                       break;\r
+               default:\r
+                       PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));\r
+                       errors = true;\r
+                       break;\r
+               }\r
+       }\r
+       if (errors) return usage_t55xx_read();\r
+       if (wake && !usepwd) {\r
+               PrintAndLog("Wake command must use a pwd");\r
+               return 1;\r
+       }\r
+       if ((block > 7) && !wake) {\r
                PrintAndLog("Block must be between 0 and 7");\r
                return 1;\r
        }       \r
 \r
-       UsbCommand c = {CMD_T55XX_READ_BLOCK, {0, block, 0}};\r
-       c.d.asBytes[0] = 0x0; \r
+       UsbCommand c = {CMD_T55XX_READ_BLOCK, {0, block, password}};\r
 \r
        //Password mode\r
-       if ( res == 2 ) {\r
-               c.arg[2] = password;\r
-               c.d.asBytes[0] = 0x1; \r
+       if ( usepwd || wake ) {\r
+               // try reading the config block and verify that PWD bit is set before doing this!\r
+               if ( wake || override ) {\r
+                       c.arg[0] = (wake<<8) & usepwd;\r
+                       if ( !wake && override )\r
+                               PrintAndLog("Safety Check Overriden - proceeding despite risk");\r
+               } else {\r
+                       AquireData( CONFIGURATION_BLOCK );\r
+                       if ( !tryDetectModulation() ) {\r
+                               PrintAndLog("Safety Check: Could not detect if PWD bit is set in config block. Exits.");\r
+                               return 1;\r
+                       } else {                \r
+                               PrintAndLog("Safety Check: PWD bit is NOT set in config block. Reading without password...");   \r
+                       }\r
+               }\r
        }\r
 \r
        clearCommandBuffer();\r
@@ -252,11 +319,15 @@ int CmdT55xxReadBlock(const char *Cmd) {
        uint8_t got[12000];\r
        GetFromBigBuf(got,sizeof(got),0);\r
        WaitForResponse(CMD_ACK,NULL);\r
-       setGraphBuf(got, 12000);\r
-       DemodBufferLen=0;\r
+       setGraphBuf(got, sizeof(got));\r
+       //DemodBufferLen=0;\r
        if (!DecodeT55xxBlock()) return 3;\r
        char blk[10]={0};\r
+       if ( wake ) {\r
+               sprintf(blk,"wake");\r
+       } else {\r
        sprintf(blk,"%d", block);\r
+       }\r
        printT55xxBlock(blk);\r
        return 0;\r
 }\r
@@ -270,8 +341,8 @@ bool DecodeT55xxBlock(){
        DemodBufferLen = 0x00;\r
 \r
        //trim 1/2 a clock from beginning\r
-       snprintf(cmdStr, sizeof(buf),"%d", bitRate[config.bitrate]/2 );\r
-       CmdLtrim(cmdStr);\r
+       //snprintf(cmdStr, sizeof(buf),"%d", bitRate[config.bitrate]/2 );\r
+       //CmdLtrim(cmdStr);\r
        switch( config.modulation ){\r
                case DEMOD_FSK:\r
                        snprintf(cmdStr, sizeof(buf),"%d %d", bitRate[config.bitrate], config.inverted );\r
@@ -333,7 +404,7 @@ int CmdT55xxDetect(const char *Cmd){
 \r
 // detect configuration?\r
 bool tryDetectModulation(){\r
-       char cmdStr[8] = {0};\r
+       //char cmdStr[8] = {0};\r
        uint8_t hits = 0;\r
        t55xx_conf_block_t tests[15];\r
        int bitRate=0;\r
@@ -341,8 +412,8 @@ bool tryDetectModulation(){
        save_restoreGB(1);\r
        if (GetFskClock("", FALSE, FALSE)){ \r
                fskClocks(&fc1, &fc2, &clk, FALSE);\r
-               sprintf(cmdStr,"%d", clk/2);\r
-               CmdLtrim(cmdStr);\r
+               //sprintf(cmdStr,"%d", clk/2);\r
+               //CmdLtrim(cmdStr);\r
                if ( FSKrawDemod("0 0", FALSE) && test(DEMOD_FSK, &tests[hits].offset, &bitRate)){\r
                        tests[hits].modulation = DEMOD_FSK;\r
                        if (fc1==8 && fc2 == 5)\r
@@ -368,10 +439,9 @@ bool tryDetectModulation(){
                }\r
        } else {\r
                clk = GetAskClock("", FALSE, FALSE);\r
-               \r
                if (clk>0) {\r
-                       sprintf(cmdStr,"%d", clk/2);\r
-                       CmdLtrim(cmdStr);\r
+                       //sprintf(cmdStr,"%d", clk/2);\r
+                       //CmdLtrim(cmdStr);\r
                        if ( ASKDemod("0 0 0", FALSE, FALSE, 1) && test(DEMOD_ASK, &tests[hits].offset, &bitRate)) {\r
                                tests[hits].modulation = DEMOD_ASK;\r
                                tests[hits].bitrate = bitRate;\r
@@ -405,8 +475,8 @@ bool tryDetectModulation(){
                save_restoreGB(0);\r
                clk = GetNrzClock("", FALSE, FALSE);\r
                if (clk>0) {\r
-                       sprintf(cmdStr,"%d", clk/2);\r
-                       CmdLtrim(cmdStr);\r
+                       //sprintf(cmdStr,"%d", clk/2);\r
+                       //CmdLtrim(cmdStr);\r
                        if ( NRZrawDemod("0 0 1", FALSE)  && test(DEMOD_NRZ, &tests[hits].offset, &bitRate)) {\r
                                tests[hits].modulation = DEMOD_NRZ;\r
                                tests[hits].bitrate = bitRate;\r
@@ -428,9 +498,9 @@ bool tryDetectModulation(){
                save_restoreGB(0);\r
                clk = GetPskClock("", FALSE, FALSE);\r
                if (clk>0) {\r
-                       PrintAndLog("clk %d",clk);\r
-                       sprintf(cmdStr,"%d", clk/2);\r
-                       CmdLtrim(cmdStr);       \r
+                       //PrintAndLog("clk %d",clk);\r
+                       //sprintf(cmdStr,"%d", clk/2);\r
+                       //CmdLtrim(cmdStr);     \r
                        if ( PSKDemod("0 0 1", FALSE) && test(DEMOD_PSK1, &tests[hits].offset, &bitRate)) {\r
                                tests[hits].modulation = DEMOD_PSK1;\r
                                tests[hits].bitrate = bitRate;\r
@@ -668,11 +738,11 @@ int CmdT55xxWriteBlock(const char *Cmd)
 \r
        if (block > 7) {\r
                PrintAndLog("Block number must be between 0 and 7");\r
-               return 2;\r
+               return 1;\r
        }\r
        \r
-       UsbCommand resp;\r
        UsbCommand c = {CMD_T55XX_WRITE_BLOCK, {data, block, 0}};\r
+       UsbCommand resp;\r
        c.d.asBytes[0] = 0x0; \r
 \r
        PrintAndLog("Writing to block: %d  data  : 0x%08X", block, data);\r
@@ -1065,6 +1135,36 @@ void t55x7_create_config_block( int tagtype ){
        \r
 }\r
 \r
+int CmdT55xxWakeUp(const char *Cmd) {\r
+       uint32_t password = 0xFFFFFFFF; //default to blank Block 7\r
+       uint8_t cmdp = 0;\r
+       bool errors = false;\r
+       while(param_getchar(Cmd, cmdp) != 0x00 && !errors) {\r
+               switch(param_getchar(Cmd, cmdp)) {\r
+               case 'h':\r
+               case 'H':\r
+                       return usage_t55xx_wakup();\r
+               case 'p':\r
+               case 'P':\r
+                       password = param_get32ex(Cmd, cmdp+1, 0, 10);\r
+                       cmdp+=2;\r
+                       break;\r
+               default:\r
+                       PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));\r
+                       errors = true;\r
+                       break;\r
+               }\r
+       }\r
+       if (errors) return usage_t55xx_wakup();\r
+       \r
+       UsbCommand c = {CMD_T55XX_WAKEUP, {password, 0, 0}};\r
+\r
+       clearCommandBuffer();\r
+       SendCommand(&c);\r
+       PrintAndLog("Wake up command sent. Try read now");\r
+       return 0;\r
+}\r
+\r
 /*\r
 uint32_t PackBits(uint8_t start, uint8_t len, uint8_t* bits){\r
        \r
@@ -1091,6 +1191,8 @@ static command_t CommandTable[] =
   {"info",   CmdT55xxInfo,      0, "[1] Show T55xx configuration data (page 0/ blk 0)"},\r
   {"dump",   CmdT55xxDump,      0, "[password] Dump T55xx card block 0-7. [optional password]"},\r
   {"special", special,          0, "Show block changes with 64 different offsets"},\r
+  {"wakeup", CmdT55xxWakeUp,    0, "Send AOR wakeup command"},\r
+  \r
   {NULL, NULL, 0, NULL}\r
 };\r
 \r
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