]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/cmdhfmf.c
Fix #1 for pm3 iclass simulation, remove erroneous extra bit after transmission
[proxmark3-svn] / client / cmdhfmf.c
index 28f7b07820a2929a6252f502bd4ba288e7d9eab8..f225359d7d8801cfb4e053f0d47bce73e1f831e1 100644 (file)
@@ -778,12 +778,14 @@ int CmdHF14AMfNested(const char *Cmd)
 int CmdHF14AMfChk(const char *Cmd)\r
 {\r
        if (strlen(Cmd)<3) {\r
-               PrintAndLog("Usage:  hf mf chk <block number>|<*card memory> <key type (A/B/?)> [t] [<key (12 hex symbols)>] [<dic (*.dic)>]");\r
+               PrintAndLog("Usage:  hf mf chk <block number>|<*card memory> <key type (A/B/?)> [t|d] [<key (12 hex symbols)>] [<dic (*.dic)>]");\r
                PrintAndLog("          * - all sectors");\r
                PrintAndLog("card memory - 0 - MINI(320 bytes), 1 - 1K, 2 - 2K, 4 - 4K, <other> - 1K");\r
                PrintAndLog("d - write keys to binary file\n");\r
+               PrintAndLog("t - write keys to emulator memory");\r
                PrintAndLog("      sample: hf mf chk 0 A 1234567890ab keys.dic");\r
                PrintAndLog("              hf mf chk *1 ? t");\r
+               PrintAndLog("              hf mf chk *1 ? d");\r
                return 0;\r
        }       \r
 \r
@@ -1010,12 +1012,16 @@ int CmdHF14AMf1kSim(const char *Cmd)
        uint8_t exitAfterNReads = 0;\r
        uint8_t flags = 0;\r
 \r
-       if (param_getchar(Cmd, 0) == 'h') {\r
+       uint8_t cmdp = param_getchar(Cmd, 0);\r
+       \r
+       if (cmdp == 'h' || cmdp == 'H') {\r
                PrintAndLog("Usage:  hf mf sim  u <uid (8 hex symbols)> n <numreads> i x");\r
+               PrintAndLog("           h    this help");\r
                PrintAndLog("           u    (Optional) UID. If not specified, the UID from emulator memory will be used");\r
                PrintAndLog("           n    (Optional) Automatically exit simulation after <numreads> blocks have been read by reader. 0 = infinite");\r
                PrintAndLog("           i    (Optional) Interactive, means that console will not be returned until simulation finishes or is aborted");\r
                PrintAndLog("           x    (Optional) Crack, performs the 'reader attack', nr/ar attack against a legitimate reader, fishes out the key(s)");\r
+               PrintAndLog("");\r
                PrintAndLog("           sample: hf mf sim u 0a0a0a0a ");\r
                return 0;\r
        }\r
@@ -1445,7 +1451,7 @@ int CmdHF14AMfCSetUID(const char *Cmd)
        char ctmp = param_getchar(Cmd, 1);\r
        if (ctmp == 'w' || ctmp == 'W') wipeCard = 1;\r
        \r
-       PrintAndLog("--wipe card:%02x uid:%s", wipeCard, sprint_hex(uid, 4));\r
+       PrintAndLog("--wipe card:%s  uid:%s", (wipeCard)?"YES":"NO", sprint_hex(uid, 4));\r
 \r
        res = mfCSetUID(uid, oldUid, wipeCard);\r
        if (res) {\r
@@ -1488,7 +1494,6 @@ int CmdHF14AMfCSetBlk(const char *Cmd)
                        return 1;\r
                }\r
        \r
-       PrintAndLog("UID:%s", sprint_hex(uid, 4));\r
        return 0;\r
 }\r
 \r
@@ -1503,11 +1508,8 @@ int CmdHF14AMfCLoad(const char *Cmd)
        uint8_t fillFromEmulator = 0;\r
        int i, len, blockNum, flags;\r
        \r
-       // memset(filename, 0, sizeof(filename));\r
-       // memset(buf, 0, sizeof(buf));\r
-\r
        if (param_getchar(Cmd, 0) == 'h' || param_getchar(Cmd, 0)== 0x00) {\r
-               PrintAndLog("It loads magic Chinese card (only works with!!!) from the file `filename.eml`");\r
+               PrintAndLog("It loads magic Chinese card from the file `filename.eml`");\r
                PrintAndLog("or from emulator memory (option `e`)");\r
                PrintAndLog("Usage:  hf mf cload <file name w/o `.eml`>");\r
                PrintAndLog("   or:  hf mf cload e ");\r
@@ -1554,7 +1556,9 @@ int CmdHF14AMfCLoad(const char *Cmd)
                blockNum = 0;\r
                flags = CSETBLOCK_INIT_FIELD + CSETBLOCK_WUPC;\r
                while(!feof(f)){\r
+               \r
                        memset(buf, 0, sizeof(buf));\r
+                       \r
                        if (fgets(buf, sizeof(buf), f) == NULL) {\r
                                PrintAndLog("File reading error.");\r
                                return 2;\r
@@ -1589,6 +1593,7 @@ int CmdHF14AMfCLoad(const char *Cmd)
                PrintAndLog("Loaded from file: %s", filename);\r
                return 0;\r
        }\r
+       return 0;\r
 }\r
 \r
 int CmdHF14AMfCGetBlk(const char *Cmd) {\r
@@ -1760,17 +1765,19 @@ int CmdHF14AMfSniff(const char *Cmd){
        int res = 0;\r
        int len = 0;\r
        int blockLen = 0;\r
-       int num = 0;\r
        int pckNum = 0;\r
-       uint8_t uid[7] = {0x00};\r
+       int num = 0;\r
+       uint8_t uid[7];\r
        uint8_t uid_len;\r
        uint8_t atqa[2] = {0x00};\r
        uint8_t sak;\r
        bool isTag;\r
-       uint8_t buf[3000] = {0x00};\r
-       uint8_t * bufPtr = buf;\r
+       uint8_t *buf = NULL;\r
+       uint16_t bufsize = 0;\r
+       uint8_t *bufPtr = NULL;\r
        \r
-       if (param_getchar(Cmd, 0) == 'h') {\r
+       char ctmp = param_getchar(Cmd, 0);\r
+       if ( ctmp == 'h' || ctmp == 'H' ) {\r
                PrintAndLog("It continuously gets data from the field and saves it to: log, emulator, emulator file.");\r
                PrintAndLog("You can specify:");\r
                PrintAndLog("    l - save encrypted sequence to logfile `uid.log`");\r
@@ -1783,7 +1790,7 @@ int CmdHF14AMfSniff(const char *Cmd){
        }       \r
        \r
        for (int i = 0; i < 4; i++) {\r
-               char ctmp = param_getchar(Cmd, i);\r
+               ctmp = param_getchar(Cmd, i);\r
                if (ctmp == 'l' || ctmp == 'L') wantLogToFile = true;\r
                if (ctmp == 'd' || ctmp == 'D') wantDecrypt = true;\r
                //if (ctmp == 'e' || ctmp == 'E') wantSaveToEml = true; TODO\r
@@ -1810,32 +1817,47 @@ int CmdHF14AMfSniff(const char *Cmd){
                        break;\r
                }\r
                \r
-    UsbCommand resp;\r
-    if (WaitForResponseTimeout(CMD_ACK,&resp,2000)) {\r
+               UsbCommand resp;\r
+               if (WaitForResponseTimeout(CMD_ACK,&resp,2000)) {\r
                        res = resp.arg[0] & 0xff;\r
-                       len = resp.arg[1];\r
-                       num = resp.arg[2];\r
-                       \r
-                       if (res == 0) return 0;\r
-                       if (res == 1) {\r
-                               if (num ==0) {\r
+                       uint16_t traceLen = resp.arg[1];\r
+                       len = resp.arg[2];\r
+\r
+                       if (res == 0) return 0;                                         // we are done\r
+\r
+                       if (res == 1) {                                                         // there is (more) data to be transferred\r
+                               if (pckNum == 0) {                                              // first packet, (re)allocate necessary buffer\r
+                                       if (traceLen > bufsize) {\r
+                                               uint8_t *p;\r
+                                               if (buf == NULL) {                              // not yet allocated\r
+                                                       p = malloc(traceLen);\r
+                                               } else {                                                // need more memory\r
+                                                       p = realloc(buf, traceLen);\r
+                                               }\r
+                                               if (p == NULL) {\r
+                                                       PrintAndLog("Cannot allocate memory for trace");\r
+                                                       free(buf);\r
+                                                       return 2;\r
+                                               }\r
+                                               buf = p;\r
+                                       }\r
                                        bufPtr = buf;\r
-                                       memset(buf, 0x00, 3000);\r
+                                       bufsize = traceLen;\r
+                                       memset(buf, 0x00, traceLen);\r
                                }\r
                                memcpy(bufPtr, resp.d.asBytes, len);\r
                                bufPtr += len;\r
                                pckNum++;\r
                        }\r
-                       if (res == 2) {\r
+\r
+                       if (res == 2) {                                                         // received all data, start displaying\r
                                blockLen = bufPtr - buf;\r
                                bufPtr = buf;\r
                                printf(">\n");\r
                                PrintAndLog("received trace len: %d packages: %d", blockLen, pckNum);\r
-                               num = 0;\r
                                while (bufPtr - buf < blockLen) {\r
-                                       bufPtr += 6;\r
+                                       bufPtr += 6;                                            // skip (void) timing information\r
                                        len = *((uint16_t *)bufPtr);\r
-\r
                                        if(len & 0x8000) {\r
                                                isTag = true;\r
                                                len &= 0x7fff;\r
@@ -1844,12 +1866,10 @@ int CmdHF14AMfSniff(const char *Cmd){
                                        }\r
                                        bufPtr += 2;\r
                                        if ((len == 14) && (bufPtr[0] == 0xff) && (bufPtr[1] == 0xff) && (bufPtr[12] == 0xff) && (bufPtr[13] == 0xff)) {\r
-                                       \r
                                                memcpy(uid, bufPtr + 2, 7);\r
                                                memcpy(atqa, bufPtr + 2 + 7, 2);\r
                                                uid_len = (atqa[0] & 0xC0) == 0x40 ? 7 : 4;\r
                                                sak = bufPtr[11];\r
-                                               \r
                                                PrintAndLog("tag select uid:%s atqa:0x%02x%02x sak:0x%02x", \r
                                                        sprint_hex(uid + (7 - uid_len), uid_len),\r
                                                        atqa[1], \r
@@ -1867,18 +1887,21 @@ int CmdHF14AMfSniff(const char *Cmd){
                                                        AddLogHex(logHexFileName, isTag ? "TAG: ":"RDR: ", bufPtr, len);\r
                                                if (wantDecrypt) \r
                                                        mfTraceDecode(bufPtr, len, wantSaveToEmlFile);\r
+                                               num++;  \r
                                        }\r
                                        bufPtr += len;\r
                                        bufPtr += ((len-1)/8+1);        // ignore parity\r
-                                       num++;\r
                                }\r
+                               pckNum = 0;\r
                        }\r
                } // resp not NULL\r
        } // while (true)\r
-       \r
+\r
+       free(buf);\r
        return 0;\r
 }\r
 \r
+\r
 static command_t CommandTable[] =\r
 {\r
   {"help",             CmdHelp,                                1, "This help"},\r
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