FIX: old bug back, and now fixed again. @marshmellow42

[proxmark3-svn] / client / mifarehost.c

diff --git a/client/mifarehost.c b/client/mifarehost.c
index 3516fca499fd3daa921345b7b4e0eb0d39f0dd85..d754b06b4a1a01dd589c6523bc354fdd0c99566d 100644 (file)
--- a/client/mifarehost.c
+++ b/client/mifarehost.c
@@ -15,6 +15,8 @@
 #include "mifarehost.h"\r
 #include "proxmark3.h"\r
 \r
 #include "mifarehost.h"\r
 #include "proxmark3.h"\r
 \r

+#define llx PRIx64\r
+\r

 // MIFARE\r
 int compar_int(const void * a, const void * b) {\r
        // didn't work: (the result is truncated to 32 bits)\r
 // MIFARE\r
 int compar_int(const void * a, const void * b) {\r
        // didn't work: (the result is truncated to 32 bits)\r


@@ -72,7 +74,6 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo
        uint16_t i, len;\r
        uint32_t uid;\r
        UsbCommand resp;\r
        uint16_t i, len;\r
        uint32_t uid;\r
        UsbCommand resp;\r

-       \r

        StateList_t statelists[2];\r
        struct Crypto1State *p1, *p2, *p3, *p4;\r
        \r
        StateList_t statelists[2];\r
        struct Crypto1State *p1, *p2, *p3, *p4;\r
        \r


@@ -231,15 +232,31 @@ int mfEmlSetMem(uint8_t *data, int blockNum, int blocksCount) {
 \r
 // "MAGIC" CARD\r
 \r
 \r
 // "MAGIC" CARD\r
 \r

-int mfCSetUID(uint8_t *uid, uint8_t *oldUID, bool wantWipe) {\r
+int mfCSetUID(uint8_t *uid, uint8_t *atqa, uint8_t *sak, uint8_t *oldUID, bool wantWipe) {\r
+       uint8_t oldblock0[16] = {0x00};\r

        uint8_t block0[16] = {0x00};\r
        uint8_t block0[16] = {0x00};\r

+\r
+       int old = mfCGetBlock(0, oldblock0, CSETBLOCK_SINGLE_OPER);\r
+       if (old == 0) {\r
+               memcpy(block0, oldblock0, 16);\r
+               PrintAndLog("old block 0:  %s", sprint_hex(block0,16));\r
+       } else {\r
+               PrintAndLog("Couldn't get old data. Will write over the last bytes of Block 0.");\r
+       }\r
+\r
+       // fill in the new values\r
+       // UID\r

        memcpy(block0, uid, 4); \r
        memcpy(block0, uid, 4); \r

-       block0[4] = block0[0]^block0[1]^block0[2]^block0[3]; // Mifare UID BCC\r
-       // mifare classic SAK(byte 5) and ATQA(byte 6 and 7)\r
-       block0[5] = 0x08;\r
-       block0[6] = 0x04;\r
-       block0[7] = 0x00;\r
-       \r
+       // Mifare UID BCC\r
+       block0[4] = block0[0]^block0[1]^block0[2]^block0[3];\r
+       // mifare classic SAK(byte 5) and ATQA(byte 6 and 7, reversed)\r
+       if (sak!=NULL)\r
+               block0[5]=sak[0];\r
+       if (atqa!=NULL) {\r
+               block0[6]=atqa[1];\r
+               block0[7]=atqa[0];\r
+       }\r
+       PrintAndLog("new block 0:  %s", sprint_hex(block0,16));\r

        return mfCSetBlock(0, block0, oldUID, wantWipe, CSETBLOCK_SINGLE_OPER);\r
 }\r
 \r
        return mfCSetBlock(0, block0, oldUID, wantWipe, CSETBLOCK_SINGLE_OPER);\r
 }\r
 \r


@@ -253,8 +270,10 @@ int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, bool wantWipe, uin
        UsbCommand resp;\r
        if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {\r
                isOK  = resp.arg[0] & 0xff;\r
        UsbCommand resp;\r
        if (WaitForResponseTimeout(CMD_ACK,&resp,1500)) {\r
                isOK  = resp.arg[0] & 0xff;\r

-               if (uid != NULL) memcpy(uid, resp.d.asBytes, 4);\r
-               if (!isOK) return 2;\r
+               if (uid != NULL) \r
+                       memcpy(uid, resp.d.asBytes, 4);\r
+               if (!isOK) \r
+                       return 2;\r

        } else {\r
                PrintAndLog("Command execute timeout");\r
                return 1;\r
        } else {\r
                PrintAndLog("Command execute timeout");\r
                return 1;\r


@@ -286,25 +305,26 @@ int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params) {
 static uint8_t trailerAccessBytes[4] = {0x08, 0x77, 0x8F, 0x00};\r
 \r
 // variables\r
 static uint8_t trailerAccessBytes[4] = {0x08, 0x77, 0x8F, 0x00};\r
 \r
 // variables\r

-char logHexFileName[200] = {0x00};\r
+char logHexFileName[FILE_PATH_SIZE] = {0x00};\r

 static uint8_t traceCard[4096] = {0x00};\r
 static uint8_t traceCard[4096] = {0x00};\r

-static char traceFileName[200] = {0x00};\r
+static char traceFileName[FILE_PATH_SIZE] = {0x00};\r

 static int traceState = TRACE_IDLE;\r
 static uint8_t traceCurBlock = 0;\r
 static uint8_t traceCurKey = 0;\r
 \r
 struct Crypto1State *traceCrypto1 = NULL;\r
 \r
 static int traceState = TRACE_IDLE;\r
 static uint8_t traceCurBlock = 0;\r
 static uint8_t traceCurKey = 0;\r
 \r
 struct Crypto1State *traceCrypto1 = NULL;\r
 \r

-struct Crypto1State *revstate;\r
-uint64_t lfsr;\r
-uint32_t ks2;\r
-uint32_t ks3;\r
+struct Crypto1State *revstate = NULL;\r

 \r
 \r

-uint32_t uid;     // serial number\r
-uint32_t nt;      // tag challenge\r
-uint32_t nr_enc;  // encrypted reader challenge\r
-uint32_t ar_enc;  // encrypted reader response\r
-uint32_t at_enc;  // encrypted tag response\r
+uint64_t key = 0;\r
+uint32_t ks2 = 0;\r
+uint32_t ks3 = 0;\r
+\r
+uint32_t uid = 0;     // serial number\r
+uint32_t nt =0;      // tag challenge\r
+uint32_t nr_enc =0;  // encrypted reader challenge\r
+uint32_t ar_enc =0;  // encrypted reader response\r
+uint32_t at_enc =0;  // encrypted tag response\r

 \r
 int isTraceCardEmpty(void) {\r
        return ((traceCard[0] == 0) && (traceCard[1] == 0) && (traceCard[2] == 0) && (traceCard[3] == 0));\r
 \r
 int isTraceCardEmpty(void) {\r
        return ((traceCard[0] == 0) && (traceCard[1] == 0) && (traceCard[2] == 0) && (traceCard[3] == 0));\r


@@ -323,26 +343,31 @@ int isBlockTrailer(int blockN) {
 \r
 int loadTraceCard(uint8_t *tuid) {\r
        FILE * f;\r
 \r
 int loadTraceCard(uint8_t *tuid) {\r
        FILE * f;\r

-       char buf[64];\r
-       uint8_t buf8[64];\r
+       char buf[64] = {0x00};\r
+       uint8_t buf8[64] = {0x00};\r

        int i, blockNum;\r
        \r
        int i, blockNum;\r
        \r

-       if (!isTraceCardEmpty()) saveTraceCard();\r
+       if (!isTraceCardEmpty()) \r
+               saveTraceCard();\r
+               \r

        memset(traceCard, 0x00, 4096);\r
        memcpy(traceCard, tuid + 3, 4);\r
        memset(traceCard, 0x00, 4096);\r
        memcpy(traceCard, tuid + 3, 4);\r

+\r

        FillFileNameByUID(traceFileName, tuid, ".eml", 7);\r
 \r
        f = fopen(traceFileName, "r");\r
        if (!f) return 1;\r
        \r
        blockNum = 0;\r
        FillFileNameByUID(traceFileName, tuid, ".eml", 7);\r
 \r
        f = fopen(traceFileName, "r");\r
        if (!f) return 1;\r
        \r
        blockNum = 0;\r

+               \r

        while(!feof(f)){\r
        while(!feof(f)){\r

+       \r

                memset(buf, 0, sizeof(buf));\r
                if (fgets(buf, sizeof(buf), f) == NULL) {\r
                memset(buf, 0, sizeof(buf));\r
                if (fgets(buf, sizeof(buf), f) == NULL) {\r

-      PrintAndLog("File reading error.");\r
+                       PrintAndLog("File reading error.");\r

                        fclose(f);\r
                        return 2;\r
                        fclose(f);\r
                        return 2;\r

-    }\r
+               }\r

 \r
                if (strlen(buf) < 32){\r
                        if (feof(f)) break;\r
 \r
                if (strlen(buf) < 32){\r
                        if (feof(f)) break;\r


@@ -368,22 +393,27 @@ int saveTraceCard(void) {
        if ((!strlen(traceFileName)) || (isTraceCardEmpty())) return 0;\r
        \r
        f = fopen(traceFileName, "w+");\r
        if ((!strlen(traceFileName)) || (isTraceCardEmpty())) return 0;\r
        \r
        f = fopen(traceFileName, "w+");\r

+       if ( !f ) return 1;\r
+       \r

        for (int i = 0; i < 64; i++) {  // blocks\r
                for (int j = 0; j < 16; j++)  // bytes\r
                        fprintf(f, "%02x", *(traceCard + i * 16 + j)); \r
                fprintf(f,"\n");\r
        }\r
        fclose(f);\r
        for (int i = 0; i < 64; i++) {  // blocks\r
                for (int j = 0; j < 16; j++)  // bytes\r
                        fprintf(f, "%02x", *(traceCard + i * 16 + j)); \r
                fprintf(f,"\n");\r
        }\r
        fclose(f);\r

-\r

        return 0;\r
 }\r
 \r
 int mfTraceInit(uint8_t *tuid, uint8_t *atqa, uint8_t sak, bool wantSaveToEmlFile) {\r
 \r
        return 0;\r
 }\r
 \r
 int mfTraceInit(uint8_t *tuid, uint8_t *atqa, uint8_t sak, bool wantSaveToEmlFile) {\r
 \r

-       if (traceCrypto1) crypto1_destroy(traceCrypto1);\r
+       if (traceCrypto1) \r
+               crypto1_destroy(traceCrypto1);\r
+\r

        traceCrypto1 = NULL;\r
 \r
        traceCrypto1 = NULL;\r
 \r

-       if (wantSaveToEmlFile) loadTraceCard(tuid);\r
+       if (wantSaveToEmlFile) \r
+               loadTraceCard(tuid);\r
+               \r

        traceCard[4] = traceCard[0] ^ traceCard[1] ^ traceCard[2] ^ traceCard[3];\r
        traceCard[5] = sak;\r
        memcpy(&traceCard[6], atqa, 2);\r
        traceCard[4] = traceCard[0] ^ traceCard[1] ^ traceCard[2] ^ traceCard[3];\r
        traceCard[5] = sak;\r
        memcpy(&traceCard[6], atqa, 2);\r


@@ -550,17 +580,17 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                        lfsr_rollback_word(revstate, nr_enc, 1);\r
                        lfsr_rollback_word(revstate, uid ^ nt, 0);\r
 \r
                        lfsr_rollback_word(revstate, nr_enc, 1);\r
                        lfsr_rollback_word(revstate, uid ^ nt, 0);\r
 \r

-                       crypto1_get_lfsr(revstate, &lfsr);\r
-                       printf("key> %x%x\n", (unsigned int)((lfsr & 0xFFFFFFFF00000000) >> 32), (unsigned int)(lfsr & 0xFFFFFFFF));\r
-                       AddLogUint64(logHexFileName, "key> ", lfsr); \r
+                       crypto1_get_lfsr(revstate, &key);\r
+                       printf("Key: %012"llx"\n",key);\r
+                       AddLogUint64(logHexFileName, "key: ", key); \r

                        \r
                        int blockShift = ((traceCurBlock & 0xFC) + 3) * 16;\r
                        if (isBlockEmpty((traceCurBlock & 0xFC) + 3)) memcpy(traceCard + blockShift + 6, trailerAccessBytes, 4);\r
                        \r
                        if (traceCurKey) {\r
                        \r
                        int blockShift = ((traceCurBlock & 0xFC) + 3) * 16;\r
                        if (isBlockEmpty((traceCurBlock & 0xFC) + 3)) memcpy(traceCard + blockShift + 6, trailerAccessBytes, 4);\r
                        \r
                        if (traceCurKey) {\r

-                               num_to_bytes(lfsr, 6, traceCard + blockShift + 10);\r
+                               num_to_bytes(key, 6, traceCard + blockShift + 10);\r

                        } else {\r
                        } else {\r

-                               num_to_bytes(lfsr, 6, traceCard + blockShift);\r
+                               num_to_bytes(key, 6, traceCard + blockShift);\r

                        }\r
                        if (wantSaveToEmlFile) saveTraceCard();\r
 \r
                        }\r
                        if (wantSaveToEmlFile) saveTraceCard();\r
 \r


@@ -573,7 +603,7 @@ int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {
                        \r
 //     nt = crypto1_word(traceCrypto1, nt ^ uid, 1) ^ nt;\r
 \r
                        \r
 //     nt = crypto1_word(traceCrypto1, nt ^ uid, 1) ^ nt;\r
 \r

-       /*      traceCrypto1 = crypto1_create(lfsr); // key in lfsr\r
+       /*      traceCrypto1 = crypto1_create(key); // key in lfsr\r

                crypto1_word(traceCrypto1, nt ^ uid, 0);\r
                crypto1_word(traceCrypto1, ar, 1);\r
                crypto1_word(traceCrypto1, 0, 0);\r
                crypto1_word(traceCrypto1, nt ^ uid, 0);\r
                crypto1_word(traceCrypto1, ar, 1);\r
                crypto1_word(traceCrypto1, 0, 0);\r