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FIX: `lf guard sim` - helptext change and increase arguments expected check to 3
[proxmark3-svn] / client / cmdhfmf.c
diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index 65c9dcb775b8918d50dddec9d91371e24e0e203f..e6568f59f64b70d8304bc35918d506b754b52fda 100644 (file)
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -24,17 +24,20 @@ int usage_hf14_mifare(void){
        return 0;\r
 }\r
 int usage_hf14_mf1ksim(void){\r
        return 0;\r
 }\r
 int usage_hf14_mf1ksim(void){\r
-       PrintAndLog("Usage:  hf mf sim  [h] u <uid (8,14,20 hex symbols)> n <numreads> i x");\r
+       PrintAndLog("Usage:  hf mf sim [h] u <uid> n <numreads> [i] [x] [e] [v]");\r
        PrintAndLog("options:");\r
        PrintAndLog("      h    this help");\r
        PrintAndLog("      u    (Optional) UID 4,7 or 10bytes. If not specified, the UID 4b 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("options:");\r
        PrintAndLog("      h    this help");\r
        PrintAndLog("      u    (Optional) UID 4,7 or 10bytes. If not specified, the UID 4b 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("      x    (Optional) Crack, performs the 'reader attack', nr/ar attack against a reader");\r
+       PrintAndLog("      e    (Optional) Fill simulator keys from found keys");\r
+       PrintAndLog("      v    (Optional) Verbose");\r
        PrintAndLog("samples:");\r
        PrintAndLog("           hf mf sim u 0a0a0a0a");\r
        PrintAndLog("           hf mf sim u 11223344556677");\r
        PrintAndLog("           hf mf sim u 112233445566778899AA");     \r
        PrintAndLog("samples:");\r
        PrintAndLog("           hf mf sim u 0a0a0a0a");\r
        PrintAndLog("           hf mf sim u 11223344556677");\r
        PrintAndLog("           hf mf sim u 112233445566778899AA");     \r
+       PrintAndLog("           hf mf sim u 11223344 i x");     \r
        return 0;\r
 }\r
 int usage_hf14_dbg(void){\r
        return 0;\r
 }\r
 int usage_hf14_dbg(void){\r
@@ -212,14 +215,14 @@ start:
                }\r
        }       \r
        printf("\n");\r
                }\r
        }       \r
        printf("\n");\r
+       // error\r
+       if (isOK != 1) return 1;\r
        \r
        \r
-       // par == 0,  and -4\r
-       if (isOK == -4 && par_list == 0) {\r
+       if (par_list == 0 && ks_list != 0) {\r
                // this special attack when parities is zero, uses checkkeys. Which now with block/keytype option also needs. \r
                // but it uses 0|1 instead of 0x60|0x61...\r
                if (nonce2key_ex(blockNo, keytype - 0x60 , uid, nt, nr, ks_list, &r_key) ){\r
                // this special attack when parities is zero, uses checkkeys. Which now with block/keytype option also needs. \r
                // but it uses 0|1 instead of 0x60|0x61...\r
                if (nonce2key_ex(blockNo, keytype - 0x60 , uid, nt, nr, ks_list, &r_key) ){\r
-                       PrintAndLog("Key not found (lfsr_common_prefix list is null).");        \r
-                       PrintAndLog("Failing is expected to happen in 25%% of all cases. Trying again with a different reader nonce...");\r
+                       PrintAndLog("Trying again with a different reader nonce...");\r
                        c.arg[0] = false;\r
                        goto start;\r
                } else {\r
                        c.arg[0] = false;\r
                        goto start;\r
                } else {\r
@@ -227,10 +230,7 @@ start:
                        goto END;\r
                }\r
        }\r
                        goto END;\r
                }\r
        }\r
-       \r
-       // error\r
-       if (isOK != 1) return 1;\r
-       \r
+\r
        // execute original function from util nonce2key\r
        if (nonce2key(uid, nt, nr, par_list, ks_list, &r_key)) {\r
                isOK = 2;\r
        // execute original function from util nonce2key\r
        if (nonce2key(uid, nt, nr, par_list, ks_list, &r_key)) {\r
                isOK = 2;\r
@@ -239,6 +239,16 @@ start:
                c.arg[0] = false;\r
                goto start;\r
        } else {\r
                c.arg[0] = false;\r
                goto start;\r
        } else {\r
+               \r
+               // nonce2key found a candidate key.  Lets verify it.\r
+               uint8_t keyblock[] = {0,0,0,0,0,0};\r
+               num_to_bytes(r_key, 6, keyblock);\r
+               uint64_t key64 = 0;\r
+               int res = mfCheckKeys(blockNo, keytype - 0x60 , false, 1, keyblock, &key64);\r
+               if ( res > 0 ) {\r
+                       PrintAndLog("Candidate Key found (%012"llx") - Test authentication failed. [%d] Restarting darkside attack", r_key, res);       \r
+                       goto start;\r
+               }\r
                PrintAndLog("Found valid key: %012"llx" \n", r_key);\r
        }\r
 END:\r
                PrintAndLog("Found valid key: %012"llx" \n", r_key);\r
        }\r
 END:\r
@@ -465,6 +475,7 @@ int CmdHF14AMfDump(const char *Cmd) {
                if ( bytes_read == 0) {\r
                        PrintAndLog("File reading error.");\r
                        fclose(fin);\r
                if ( bytes_read == 0) {\r
                        PrintAndLog("File reading error.");\r
                        fclose(fin);\r
+                       fin = NULL;\r
                        return 2;\r
                }\r
        }\r
                        return 2;\r
                }\r
        }\r
@@ -475,12 +486,14 @@ int CmdHF14AMfDump(const char *Cmd) {
                if ( bytes_read == 0) {\r
                        PrintAndLog("File reading error.");\r
                        fclose(fin);\r
                if ( bytes_read == 0) {\r
                        PrintAndLog("File reading error.");\r
                        fclose(fin);\r
+                       fin = NULL;\r
                        return 2;\r
                }\r
        }\r
        \r
        fclose(fin);\r
                        return 2;\r
                }\r
        }\r
        \r
        fclose(fin);\r
-\r
+       fin = NULL;\r
+                       \r
        PrintAndLog("|-----------------------------------------|");\r
        PrintAndLog("|------ Reading sector access bits...-----|");\r
        PrintAndLog("|-----------------------------------------|");\r
        PrintAndLog("|-----------------------------------------|");\r
        PrintAndLog("|------ Reading sector access bits...-----|");\r
        PrintAndLog("|-----------------------------------------|");\r
@@ -586,6 +599,7 @@ int CmdHF14AMfDump(const char *Cmd) {
                uint16_t numblocks = FirstBlockOfSector(numSectors - 1) + NumBlocksPerSector(numSectors - 1);\r
                fwrite(carddata, 1, 16*numblocks, fout);\r
                fclose(fout);\r
                uint16_t numblocks = FirstBlockOfSector(numSectors - 1) + NumBlocksPerSector(numSectors - 1);\r
                fwrite(carddata, 1, 16*numblocks, fout);\r
                fclose(fout);\r
+               fout = NULL;            \r
                PrintAndLog("Dumped %d blocks (%d bytes) to file dumpdata.bin", numblocks, 16*numblocks);\r
        }\r
                \r
                PrintAndLog("Dumped %d blocks (%d bytes) to file dumpdata.bin", numblocks, 16*numblocks);\r
        }\r
                \r
@@ -634,6 +648,7 @@ int CmdHF14AMfRestore(const char *Cmd) {
                if ( bytes_read == 0) {\r
                        PrintAndLog("File reading error (dumpkeys.bin).");\r
                        fclose(fkeys);\r
                if ( bytes_read == 0) {\r
                        PrintAndLog("File reading error (dumpkeys.bin).");\r
                        fclose(fkeys);\r
+                       fkeys = NULL;\r
                        return 2;\r
                }\r
        }\r
                        return 2;\r
                }\r
        }\r
@@ -643,6 +658,7 @@ int CmdHF14AMfRestore(const char *Cmd) {
                if ( bytes_read == 0) {\r
                        PrintAndLog("File reading error (dumpkeys.bin).");\r
                        fclose(fkeys);\r
                if ( bytes_read == 0) {\r
                        PrintAndLog("File reading error (dumpkeys.bin).");\r
                        fclose(fkeys);\r
+                       fkeys = NULL;\r
                        return 2;\r
                }\r
        }\r
                        return 2;\r
                }\r
        }\r
@@ -663,6 +679,7 @@ int CmdHF14AMfRestore(const char *Cmd) {
                        if ( bytes_read == 0) {\r
                                PrintAndLog("File reading error (dumpdata.bin).");\r
                                fclose(fdump);\r
                        if ( bytes_read == 0) {\r
                                PrintAndLog("File reading error (dumpdata.bin).");\r
                                fclose(fdump);\r
+                               fdump = NULL;                           \r
                                return 2;\r
                        }\r
                                        \r
                                return 2;\r
                        }\r
                                        \r
@@ -698,6 +715,7 @@ int CmdHF14AMfRestore(const char *Cmd) {
        }\r
        \r
        fclose(fdump);\r
        }\r
        \r
        fclose(fdump);\r
+       fdump = NULL;   \r
        return 0;\r
 }\r
 \r
        return 0;\r
 }\r
 \r
@@ -1040,7 +1058,8 @@ int CmdHF14AMfNestedHard(const char *Cmd) {
                        slow ? "Yes" : "No",\r
                        tests);\r
 \r
                        slow ? "Yes" : "No",\r
                        tests);\r
 \r
-       int16_t isOK = mfnestedhard(blockNo, keyType, key, trgBlockNo, trgKeyType, know_target_key?trgkey:NULL, nonce_file_read, nonce_file_write, slow, tests);\r
+       uint64_t foundkey = 0;\r
+       int16_t isOK = mfnestedhard(blockNo, keyType, key, trgBlockNo, trgKeyType, know_target_key ? trgkey : NULL, nonce_file_read, nonce_file_write, slow, tests, &foundkey);\r
 \r
        if (isOK) {\r
                switch (isOK) {\r
 \r
        if (isOK) {\r
                switch (isOK) {\r
@@ -1342,18 +1361,16 @@ int CmdHF14AMfChk(const char *Cmd) {
        PrintAndLog("");\r
        return 0;\r
 }\r
        PrintAndLog("");\r
        return 0;\r
 }\r
-#define ATTACK_KEY_COUNT 8\r
+\r
 sector *k_sector = NULL;\r
 uint8_t k_sectorsCount = 16;\r
 sector *k_sector = NULL;\r
 uint8_t k_sectorsCount = 16;\r
-void readerAttack(nonces_t data[], bool setEmulatorMem) {\r
+static void emptySectorTable(){\r
 \r
        // initialize storage for found keys\r
        if (k_sector == NULL)\r
                k_sector = calloc(k_sectorsCount, sizeof(sector));\r
        if (k_sector == NULL) \r
                return;\r
 \r
        // initialize storage for found keys\r
        if (k_sector == NULL)\r
                k_sector = calloc(k_sectorsCount, sizeof(sector));\r
        if (k_sector == NULL) \r
                return;\r
-\r
-       uint64_t key = 0;\r
                \r
        // empty e_sector\r
        for(int i = 0; i < k_sectorsCount; ++i){\r
                \r
        // empty e_sector\r
        for(int i = 0; i < k_sectorsCount; ++i){\r
@@ -1362,42 +1379,47 @@ void readerAttack(nonces_t data[], bool setEmulatorMem) {
                k_sector[i].foundKey[0] = FALSE;\r
                k_sector[i].foundKey[1] = FALSE;\r
        }\r
                k_sector[i].foundKey[0] = FALSE;\r
                k_sector[i].foundKey[1] = FALSE;\r
        }\r
+}\r
+void showSectorTable(){\r
+       if (k_sector != NULL) {\r
+               printKeyTable(k_sectorsCount, k_sector);\r
+               free(k_sector);\r
+               k_sector = NULL;\r
+       }\r
+}\r
+void readerAttack(nonces_t data, bool setEmulatorMem, bool verbose) {\r
 \r
 \r
-       printf("enter reader attack\n");\r
-       for (uint8_t i = 0; i < ATTACK_KEY_COUNT; ++i) {\r
-               if (data[i].ar2 > 0) {\r
-                       \r
-                       if (tryMfk32(data[i], &key)) {\r
-                               PrintAndLog("Found Key%s for sector %02d: [%012"llx"]"\r
-                                       , (data[i].keytype) ? "B" : "A"\r
-                                       , data[i].sector\r
-                                       , key\r
-                               );\r
+       uint64_t key = 0;       \r
+       bool success = FALSE;\r
+       \r
+       if (k_sector == NULL)\r
+               emptySectorTable();\r
 \r
 \r
-                               k_sector[i].Key[data[i].keytype] = key;\r
-                               k_sector[i].foundKey[data[i].keytype] = TRUE;\r
-                               \r
-                               //set emulator memory for keys\r
-                               if (setEmulatorMem) {\r
-                                       uint8_t memBlock[16] = {0,0,0,0,0,0, 0xff, 0x0F, 0x80, 0x69, 0,0,0,0,0,0};\r
-                                       num_to_bytes( k_sector[i].Key[0], 6, memBlock);\r
-                                       num_to_bytes( k_sector[i].Key[1], 6, memBlock+10);\r
-                                       mfEmlSetMem( memBlock, i*4 + 3, 1);\r
-                                       PrintAndLog("Setting Emulator Memory Block %02d: [%s]"\r
-                                               , i*4 + 3\r
-                                               , sprint_hex( memBlock, sizeof(memBlock))\r
-                                               );\r
-                               }\r
-                               break;\r
-                       }\r
-                       //moebius attack                        \r
-                       // if (tryMfk32_moebius(data[i+ATTACK_KEY_COUNT], &key)) {\r
-                               // PrintAndLog("M-Found Key%s for sector %02d: [%012"llx"]"\r
-                                       // ,(data[i+ATTACK_KEY_COUNT].keytype) ? "B" : "A"\r
-                                       // , data[i+ATTACK_KEY_COUNT].sector\r
-                                       // , key\r
-                               // );\r
-                       // }\r
+       success = tryMfk32_moebius(data, &key, verbose);\r
+       if (success) {\r
+               uint8_t sector = data.sector;\r
+               uint8_t keytype = data.keytype;\r
+\r
+               PrintAndLog("Reader is trying authenticate with: Key %s, sector %02d: [%012"llx"]"\r
+                       , keytype ? "B" : "A"\r
+                       , sector\r
+                       , key\r
+               );\r
+\r
+               k_sector[sector].Key[keytype] = key;\r
+               k_sector[sector].foundKey[keytype] = TRUE;\r
+\r
+               //set emulator memory for keys\r
+               if (setEmulatorMem) {\r
+                       uint8_t memBlock[16] = {0,0,0,0,0,0, 0xff, 0x0F, 0x80, 0x69, 0,0,0,0,0,0};\r
+                       num_to_bytes( k_sector[sector].Key[0], 6, memBlock);\r
+                       num_to_bytes( k_sector[sector].Key[1], 6, memBlock+10);\r
+                       //iceman,  guessing this will not work so well for 4K tags.\r
+                       PrintAndLog("Setting Emulator Memory Block %02d: [%s]"\r
+                               , (sector*4) + 3\r
+                               , sprint_hex( memBlock, sizeof(memBlock))\r
+                               );\r
+                       mfEmlSetMem( memBlock, (sector*4) + 3, 1);\r
                }\r
        }\r
 }\r
                }\r
        }\r
 }\r
@@ -1407,16 +1429,18 @@ int CmdHF14AMf1kSim(const char *Cmd) {
        uint8_t uid[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};\r
        uint8_t exitAfterNReads = 0;\r
        uint8_t flags = (FLAG_UID_IN_EMUL | FLAG_4B_UID_IN_DATA);\r
        uint8_t uid[10] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0};\r
        uint8_t exitAfterNReads = 0;\r
        uint8_t flags = (FLAG_UID_IN_EMUL | FLAG_4B_UID_IN_DATA);\r
-       int uidlen = 0; \r
-       bool setEmulatorMem = false;\r
+       int uidlen = 0;\r
        uint8_t cmdp = 0;\r
        uint8_t cmdp = 0;\r
-       bool errors = false;\r
-\r
+       bool errors = FALSE;\r
+       bool verbose = FALSE;\r
+       bool setEmulatorMem = FALSE;\r
+       nonces_t data[1];\r
+               \r
        while(param_getchar(Cmd, cmdp) != 0x00) {\r
                switch(param_getchar(Cmd, cmdp)) {\r
                case 'e':\r
                case 'E':\r
        while(param_getchar(Cmd, cmdp) != 0x00) {\r
                switch(param_getchar(Cmd, cmdp)) {\r
                case 'e':\r
                case 'E':\r
-                       setEmulatorMem = true;\r
+                       setEmulatorMem = TRUE;\r
                        cmdp++;\r
                        break;\r
                case 'h':\r
                        cmdp++;\r
                        break;\r
                case 'h':\r
@@ -1441,7 +1465,12 @@ int CmdHF14AMf1kSim(const char *Cmd) {
                                case  8: flags = FLAG_4B_UID_IN_DATA; break;\r
                                default: return usage_hf14_mf1ksim();\r
                        }\r
                                case  8: flags = FLAG_4B_UID_IN_DATA; break;\r
                                default: return usage_hf14_mf1ksim();\r
                        }\r
-                       cmdp +=2;\r
+                       cmdp += 2;\r
+                       break;\r
+               case 'v':\r
+               case 'V':\r
+                       verbose = TRUE;\r
+                       cmdp++;\r
                        break;\r
                case 'x':\r
                case 'X':\r
                        break;\r
                case 'x':\r
                case 'X':\r
@@ -1450,7 +1479,7 @@ int CmdHF14AMf1kSim(const char *Cmd) {
                        break;\r
                default:\r
                        PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));\r
                        break;\r
                default:\r
                        PrintAndLog("Unknown parameter '%c'", param_getchar(Cmd, cmdp));\r
-                       errors = true;\r
+                       errors = TRUE;\r
                        break;\r
                }\r
                if(errors) break;\r
                        break;\r
                }\r
                if(errors) break;\r
@@ -1468,27 +1497,20 @@ int CmdHF14AMf1kSim(const char *Cmd) {
        memcpy(c.d.asBytes, uid, sizeof(uid));\r
        clearCommandBuffer();\r
        SendCommand(&c);\r
        memcpy(c.d.asBytes, uid, sizeof(uid));\r
        clearCommandBuffer();\r
        SendCommand(&c);\r
+       UsbCommand resp;                \r
 \r
 \r
-       if(flags & FLAG_INTERACTIVE) {          \r
+       if(flags & FLAG_INTERACTIVE) {\r
                PrintAndLog("Press pm3-button or send another cmd to abort simulation");\r
 \r
                PrintAndLog("Press pm3-button or send another cmd to abort simulation");\r
 \r
-               nonces_t data[ATTACK_KEY_COUNT*2];\r
-               UsbCommand resp;                \r
-\r
                while( !ukbhit() ){\r
                        if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500) ) continue;\r
                while( !ukbhit() ){\r
                        if (!WaitForResponseTimeout(CMD_ACK, &resp, 1500) ) continue;\r
-\r
                        if ( !(flags & FLAG_NR_AR_ATTACK) ) break;\r
                        if ( (resp.arg[0] & 0xffff) != CMD_SIMULATE_MIFARE_CARD ) break;\r
 \r
                        if ( !(flags & FLAG_NR_AR_ATTACK) ) break;\r
                        if ( (resp.arg[0] & 0xffff) != CMD_SIMULATE_MIFARE_CARD ) break;\r
 \r
-                       memcpy( data, resp.d.asBytes, sizeof(data) );                   \r
-                       readerAttack(data, setEmulatorMem);\r
-               }\r
-               \r
-               if (k_sector != NULL) {\r
-                       printKeyTable(k_sectorsCount, k_sector );\r
-                       free(k_sector);\r
+                       memcpy(data, resp.d.asBytes, sizeof(data));\r
+                       readerAttack(data[0], setEmulatorMem, verbose);\r
                }\r
                }\r
+               showSectorTable();\r
        }\r
        return 0;\r
 }\r
        }\r
        return 0;\r
 }\r
@@ -2438,9 +2460,9 @@ static command_t CommandTable[] = {
        {"dump",                CmdHF14AMfDump,                 0, "Dump MIFARE classic tag to binary file"},\r
        {"restore",             CmdHF14AMfRestore,              0, "Restore MIFARE classic binary file to BLANK tag"},\r
        {"wrbl",                CmdHF14AMfWrBl,                 0, "Write MIFARE classic block"},\r
        {"dump",                CmdHF14AMfDump,                 0, "Dump MIFARE classic tag to binary file"},\r
        {"restore",             CmdHF14AMfRestore,              0, "Restore MIFARE classic binary file to BLANK tag"},\r
        {"wrbl",                CmdHF14AMfWrBl,                 0, "Write MIFARE classic block"},\r
-       {"chk",                 CmdHF14AMfChk,                  0, "Test block keys"},\r
-       {"mifare",              CmdHF14AMifare,                 0, "Read parity error messages."},\r
-       {"nested",              CmdHF14AMfNested,               0, "Test nested authentication"},\r
+       {"chk",                 CmdHF14AMfChk,                  0, "Check keys"},\r
+       {"mifare",              CmdHF14AMifare,                 0, "Darkside attack. read parity error messages."},\r
+       {"nested",              CmdHF14AMfNested,               0, "Nested attack. Test nested authentication"},\r
        {"hardnested",  CmdHF14AMfNestedHard,   0, "Nested attack for hardened Mifare cards"},\r
        {"keybrute",    CmdHF14AMfKeyBrute,             0, "J_Run's 2nd phase of multiple sector nested authentication key recovery"},\r
        {"sniff",               CmdHF14AMfSniff,                0, "Sniff card-reader communication"},\r
        {"hardnested",  CmdHF14AMfNestedHard,   0, "Nested attack for hardened Mifare cards"},\r
        {"keybrute",    CmdHF14AMfKeyBrute,             0, "J_Run's 2nd phase of multiple sector nested authentication key recovery"},\r
        {"sniff",               CmdHF14AMfSniff,                0, "Sniff card-reader communication"},\r
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