]> git.zerfleddert.de Git - proxmark3-svn/blobdiff - client/mifarehost.c
Merge branch 'master' of https://github.com/Proxmark/proxmark3
[proxmark3-svn] / client / mifarehost.c
index 03951e2de071bdbcb6f8133855082566999ec5c9..6716f7eb6077f0488a5a4274fed4954c52e804b6 100644 (file)
@@ -26,8 +26,6 @@ int compar_int(const void * a, const void * b) {
        else return -1;\r
 }\r
 \r
-\r
-\r
 // Compare 16 Bits out of cryptostate\r
 int Compare16Bits(const void * a, const void * b) {\r
        if ((*(uint64_t*)b & 0x00ff000000ff0000) == (*(uint64_t*)a & 0x00ff000000ff0000)) return 0;\r
@@ -35,17 +33,16 @@ int Compare16Bits(const void * a, const void * b) {
        else return -1;\r
 }\r
 \r
-\r
 typedef \r
        struct {\r
                union {\r
                        struct Crypto1State *slhead;\r
                        uint64_t *keyhead;\r
-               };\r
+               } head;\r
                union {\r
                        struct Crypto1State *sltail;\r
                        uint64_t *keytail;\r
-               };\r
+               } tail;\r
                uint32_t len;\r
                uint32_t uid;\r
                uint32_t blockNo;\r
@@ -61,25 +58,20 @@ void* nested_worker_thread(void *arg)
        struct Crypto1State *p1;\r
        StateList_t *statelist = arg;\r
 \r
-       statelist->slhead = lfsr_recovery32(statelist->ks1, statelist->nt ^ statelist->uid);\r
-       for (p1 = statelist->slhead; *(uint64_t *)p1 != 0; p1++);\r
-       statelist->len = p1 - statelist->slhead;\r
-       statelist->sltail = --p1;\r
-       qsort(statelist->slhead, statelist->len, sizeof(uint64_t), Compare16Bits);\r
+       statelist->head.slhead = lfsr_recovery32(statelist->ks1, statelist->nt ^ statelist->uid);\r
+       for (p1 = statelist->head.slhead; *(uint64_t *)p1 != 0; p1++);\r
+       statelist->len = p1 - statelist->head.slhead;\r
+       statelist->tail.sltail = --p1;\r
+       qsort(statelist->head.slhead, statelist->len, sizeof(uint64_t), Compare16Bits);\r
        \r
-       return statelist->slhead;\r
+       return statelist->head.slhead;\r
 }\r
 \r
-\r
-\r
-\r
 int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo, uint8_t trgKeyType, uint8_t * resultKey, bool calibrate) \r
 {\r
        uint16_t i, len;\r
        uint32_t uid;\r
        UsbCommand resp;\r
-\r
-       \r
        StateList_t statelists[2];\r
        struct Crypto1State *p1, *p2, *p3, *p4;\r
        \r
@@ -122,27 +114,27 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo
        \r
        // wait for threads to terminate:\r
        for (i = 0; i < 2; i++) {\r
-               pthread_join(thread_id[i], (void*)&statelists[i].slhead);\r
+               pthread_join(thread_id[i], (void*)&statelists[i].head.slhead);\r
        }\r
 \r
 \r
        // the first 16 Bits of the cryptostate already contain part of our key.\r
        // Create the intersection of the two lists based on these 16 Bits and\r
        // roll back the cryptostate\r
-       p1 = p3 = statelists[0].slhead; \r
-       p2 = p4 = statelists[1].slhead;\r
-       while (p1 <= statelists[0].sltail && p2 <= statelists[1].sltail) {\r
+       p1 = p3 = statelists[0].head.slhead; \r
+       p2 = p4 = statelists[1].head.slhead;\r
+       while (p1 <= statelists[0].tail.sltail && p2 <= statelists[1].tail.sltail) {\r
                if (Compare16Bits(p1, p2) == 0) {\r
                        struct Crypto1State savestate, *savep = &savestate;\r
                        savestate = *p1;\r
-                       while(Compare16Bits(p1, savep) == 0 && p1 <= statelists[0].sltail) {\r
+                       while(Compare16Bits(p1, savep) == 0 && p1 <= statelists[0].tail.sltail) {\r
                                *p3 = *p1;\r
                                lfsr_rollback_word(p3, statelists[0].nt ^ statelists[0].uid, 0);\r
                                p3++;\r
                                p1++;\r
                        }\r
                        savestate = *p2;\r
-                       while(Compare16Bits(p2, savep) == 0 && p2 <= statelists[1].sltail) {\r
+                       while(Compare16Bits(p2, savep) == 0 && p2 <= statelists[1].tail.sltail) {\r
                                *p4 = *p2;\r
                                lfsr_rollback_word(p4, statelists[1].nt ^ statelists[1].uid, 0);\r
                                p4++;\r
@@ -156,20 +148,20 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo
        }\r
        p3->even = 0; p3->odd = 0;\r
        p4->even = 0; p4->odd = 0;\r
-       statelists[0].len = p3 - statelists[0].slhead;\r
-       statelists[1].len = p4 - statelists[1].slhead;\r
-       statelists[0].sltail=--p3;\r
-       statelists[1].sltail=--p4;\r
+       statelists[0].len = p3 - statelists[0].head.slhead;\r
+       statelists[1].len = p4 - statelists[1].head.slhead;\r
+       statelists[0].tail.sltail=--p3;\r
+       statelists[1].tail.sltail=--p4;\r
 \r
        // the statelists now contain possible keys. The key we are searching for must be in the\r
        // intersection of both lists. Create the intersection:\r
-       qsort(statelists[0].keyhead, statelists[0].len, sizeof(uint64_t), compar_int);\r
-       qsort(statelists[1].keyhead, statelists[1].len, sizeof(uint64_t), compar_int);\r
+       qsort(statelists[0].head.keyhead, statelists[0].len, sizeof(uint64_t), compar_int);\r
+       qsort(statelists[1].head.keyhead, statelists[1].len, sizeof(uint64_t), compar_int);\r
 \r
        uint64_t *p5, *p6, *p7;\r
-       p5 = p7 = statelists[0].keyhead; \r
-       p6 = statelists[1].keyhead;\r
-       while (p5 <= statelists[0].keytail && p6 <= statelists[1].keytail) {\r
+       p5 = p7 = statelists[0].head.keyhead; \r
+       p6 = statelists[1].head.keyhead;\r
+       while (p5 <= statelists[0].tail.keytail && p6 <= statelists[1].tail.keytail) {\r
                if (compar_int(p5, p6) == 0) {\r
                        *p7++ = *p5++;\r
                        p6++;\r
@@ -179,15 +171,15 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo
                        while (compar_int(p5, p6) == 1) p6++;\r
                }\r
        }\r
-       statelists[0].len = p7 - statelists[0].keyhead;\r
-       statelists[0].keytail=--p7;\r
+       statelists[0].len = p7 - statelists[0].head.keyhead;\r
+       statelists[0].tail.keytail=--p7;\r
 \r
        memset(resultKey, 0, 6);\r
        // The list may still contain several key candidates. Test each of them with mfCheckKeys\r
        for (i = 0; i < statelists[0].len; i++) {\r
                uint8_t keyBlock[6];\r
                uint64_t key64;\r
-               crypto1_get_lfsr(statelists[0].slhead + i, &key64);\r
+               crypto1_get_lfsr(statelists[0].head.slhead + i, &key64);\r
                num_to_bytes(key64, 6, keyBlock);\r
                key64 = 0;\r
                if (!mfCheckKeys(statelists[0].blockNo, statelists[0].keyType, 1, keyBlock, &key64)) {\r
@@ -196,8 +188,8 @@ int mfnested(uint8_t blockNo, uint8_t keyType, uint8_t * key, uint8_t trgBlockNo
                }\r
        }\r
        \r
-       free(statelists[0].slhead);\r
-       free(statelists[1].slhead);\r
+       free(statelists[0].head.slhead);\r
+       free(statelists[1].head.slhead);\r
        \r
        return 0;\r
 }\r
@@ -223,7 +215,7 @@ int mfEmlGetMem(uint8_t *data, int blockNum, int blocksCount) {
        UsbCommand c = {CMD_MIFARE_EML_MEMGET, {blockNum, blocksCount, 0}};\r
        SendCommand(&c);\r
 \r
-  UsbCommand resp;\r
+       UsbCommand resp;\r
        if (!WaitForResponseTimeout(CMD_ACK,&resp,1500)) return 1;\r
        memcpy(data, resp.d.asBytes, blocksCount * 16);\r
        return 0;\r
@@ -238,31 +230,48 @@ int mfEmlSetMem(uint8_t *data, int blockNum, int blocksCount) {
 \r
 // "MAGIC" CARD\r
 \r
-int mfCSetUID(uint8_t *uid, uint8_t *oldUID, int wantWipe) {\r
-       uint8_t block0[16];\r
-       memset(block0, 0, 16);\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
+\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
-       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] = 0x88;\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
-int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, int wantWipe, uint8_t params) {\r
-       uint8_t isOK = 0;\r
+int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, bool wantWipe, uint8_t params) {\r
 \r
-       UsbCommand c = {CMD_MIFARE_EML_CSETBLOCK, {wantWipe, params & (0xFE | (uid == NULL ? 0:1)), blockNo}};\r
+       uint8_t isOK = 0;\r
+       UsbCommand c = {CMD_MIFARE_CSETBLOCK, {wantWipe, params & (0xFE | (uid == NULL ? 0:1)), blockNo}};\r
        memcpy(c.d.asBytes, data, 16); \r
        SendCommand(&c);\r
 \r
-  UsbCommand resp;\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
@@ -273,7 +282,7 @@ int mfCSetBlock(uint8_t blockNo, uint8_t *data, uint8_t *uid, int wantWipe, uint
 int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params) {\r
        uint8_t isOK = 0;\r
 \r
-       UsbCommand c = {CMD_MIFARE_EML_CGETBLOCK, {params, 0, blockNo}};\r
+       UsbCommand c = {CMD_MIFARE_CGETBLOCK, {params, 0, blockNo}};\r
        SendCommand(&c);\r
 \r
   UsbCommand resp;\r
@@ -294,9 +303,9 @@ int mfCGetBlock(uint8_t blockNo, uint8_t *data, uint8_t params) {
 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 char traceFileName[20];\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
@@ -310,12 +319,9 @@ uint32_t ks3;
 \r
 uint32_t uid;     // serial number\r
 uint32_t nt;      // tag challenge\r
-uint32_t nt_par; \r
 uint32_t nr_enc;  // encrypted reader challenge\r
 uint32_t ar_enc;  // encrypted reader response\r
-uint32_t nr_ar_par; \r
 uint32_t at_enc;  // encrypted tag response\r
-uint32_t at_par; \r
 \r
 int isTraceCardEmpty(void) {\r
        return ((traceCard[0] == 0) && (traceCard[1] == 0) && (traceCard[2] == 0) && (traceCard[3] == 0));\r
@@ -334,29 +340,39 @@ int isBlockTrailer(int blockN) {
 \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
-       if (!isTraceCardEmpty()) saveTraceCard();\r
+       if (!isTraceCardEmpty()) \r
+               saveTraceCard();\r
+               \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
+       if (!f) {\r
+               fclose(f);\r
+               return 1;\r
+       }\r
        \r
        blockNum = 0;\r
+               \r
        while(!feof(f)){\r
+       \r
                memset(buf, 0, sizeof(buf));\r
                if (fgets(buf, sizeof(buf), f) == NULL) {\r
       PrintAndLog("File reading error.");\r
+                       fclose(f);\r
                        return 2;\r
     }\r
 \r
                if (strlen(buf) < 32){\r
                        if (feof(f)) break;\r
                        PrintAndLog("File content error. Block data must include 32 HEX symbols");\r
+                       fclose(f);\r
                        return 2;\r
                }\r
                for (i = 0; i < 32; i += 2)\r
@@ -377,22 +393,30 @@ int saveTraceCard(void) {
        if ((!strlen(traceFileName)) || (isTraceCardEmpty())) return 0;\r
        \r
        f = fopen(traceFileName, "w+");\r
+       if ( !f ) {\r
+               fclose(f);\r
+               return 1;\r
+       }\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
-\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
-       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
@@ -422,7 +446,7 @@ void mf_crypto1_decrypt(struct Crypto1State *pcs, uint8_t *data, int len, bool i
 }\r
 \r
 \r
-int mfTraceDecode(uint8_t *data_src, int len, uint32_t parity, bool wantSaveToEmlFile) {\r
+int mfTraceDecode(uint8_t *data_src, int len, bool wantSaveToEmlFile) {\r
        uint8_t data[64];\r
 \r
        if (traceState == TRACE_ERROR) return 1;\r
@@ -449,7 +473,7 @@ int mfTraceDecode(uint8_t *data_src, int len, uint32_t parity, bool wantSaveToEm
                }\r
                \r
                // AUTHENTICATION\r
-               if ((len ==4) && ((data[0] == 0x60) || (data[0] == 0x61))) {\r
+               if ((len == 4) && ((data[0] == 0x60) || (data[0] == 0x61))) {\r
                        traceState = TRACE_AUTH1;\r
                        traceCurBlock = data[1];\r
                        traceCurKey = data[0] == 60 ? 1:0;\r
@@ -497,7 +521,7 @@ int mfTraceDecode(uint8_t *data_src, int len, uint32_t parity, bool wantSaveToEm
        break;\r
 \r
        case TRACE_WRITE_OK: \r
-               if ((len == 1) && (data[0] = 0x0a)) {\r
+               if ((len == 1) && (data[0] == 0x0a)) {\r
                        traceState = TRACE_WRITE_DATA;\r
 \r
                        return 0;\r
@@ -523,9 +547,7 @@ int mfTraceDecode(uint8_t *data_src, int len, uint32_t parity, bool wantSaveToEm
        case TRACE_AUTH1: \r
                if (len == 4) {\r
                        traceState = TRACE_AUTH2;\r
-\r
                        nt = bytes_to_num(data, 4);\r
-                       nt_par = parity;\r
                        return 0;\r
                } else {\r
                        traceState = TRACE_ERROR;\r
@@ -539,7 +561,6 @@ int mfTraceDecode(uint8_t *data_src, int len, uint32_t parity, bool wantSaveToEm
 \r
                        nr_enc = bytes_to_num(data, 4);\r
                        ar_enc = bytes_to_num(data + 4, 4);\r
-                       nr_ar_par = parity;\r
                        return 0;\r
                } else {\r
                        traceState = TRACE_ERROR;\r
@@ -552,26 +573,16 @@ int mfTraceDecode(uint8_t *data_src, int len, uint32_t parity, bool wantSaveToEm
                        traceState = TRACE_IDLE;\r
 \r
                        at_enc = bytes_to_num(data, 4);\r
-                       at_par = parity;\r
                        \r
                        //  decode key here)\r
-                       if (!traceCrypto1) {\r
-                               ks2 = ar_enc ^ prng_successor(nt, 64);\r
-                               ks3 = at_enc ^ prng_successor(nt, 96);\r
-                               revstate = lfsr_recovery64(ks2, ks3);\r
-                               lfsr_rollback_word(revstate, 0, 0);\r
-                               lfsr_rollback_word(revstate, 0, 0);\r
-                               lfsr_rollback_word(revstate, nr_enc, 1);\r
-                               lfsr_rollback_word(revstate, uid ^ nt, 0);\r
-                       }else{\r
-                               ks2 = ar_enc ^ prng_successor(nt, 64);\r
-                               ks3 = at_enc ^ prng_successor(nt, 96);\r
-                               revstate = lfsr_recovery64(ks2, ks3);\r
-                               lfsr_rollback_word(revstate, 0, 0);\r
-                               lfsr_rollback_word(revstate, 0, 0);\r
-                               lfsr_rollback_word(revstate, nr_enc, 1);\r
-                               lfsr_rollback_word(revstate, uid ^ nt, 0);\r
-                       }\r
+                       ks2 = ar_enc ^ prng_successor(nt, 64);\r
+                       ks3 = at_enc ^ prng_successor(nt, 96);\r
+                       revstate = lfsr_recovery64(ks2, ks3);\r
+                       lfsr_rollback_word(revstate, 0, 0);\r
+                       lfsr_rollback_word(revstate, 0, 0);\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
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