CHG: Added PR #220 from PM3 Master. ref: https://github.com/Proxmark/proxmark3...

[proxmark3-svn] / client / cmdhfmf.c

diff --git a/client/cmdhfmf.c b/client/cmdhfmf.c
index 04998e181bf724f1085e9f38384407d4fcbbd226..ede88cb7996d01d6acf1b73ae59ba5e4e72110a8 100644 (file)
--- a/client/cmdhfmf.c
+++ b/client/cmdhfmf.c
@@ -492,8 +492,9 @@ int CmdHF14AMfDump(const char *Cmd) {
        PrintAndLog("|-----------------------------------------|");\r
        PrintAndLog("|------ Reading sector access bits...-----|");\r
        PrintAndLog("|-----------------------------------------|");\r
-       \r
+       uint8_t tries = 0;\r
        for (sectorNo = 0; sectorNo < numSectors; sectorNo++) {\r
+               for (tries = 0; tries < 3; tries++) {           \r
                UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + NumBlocksPerSector(sectorNo) - 1, 0, 0}};\r
                memcpy(c.d.asBytes, keyA[sectorNo], 6);\r
                clearCommandBuffer();\r
@@ -507,7 +508,8 @@ int CmdHF14AMfDump(const char *Cmd) {
                                rights[sectorNo][1] = ((data[7] & 0x20)>>3) | ((data[8] & 0x2)<<0) | ((data[8] & 0x20)>>5); // C1C2C3 for data area 1\r
                                rights[sectorNo][2] = ((data[7] & 0x40)>>4) | ((data[8] & 0x4)>>1) | ((data[8] & 0x40)>>6); // C1C2C3 for data area 2\r
                                rights[sectorNo][3] = ((data[7] & 0x80)>>5) | ((data[8] & 0x8)>>2) | ((data[8] & 0x80)>>7); // C1C2C3 for sector trailer\r
-                       } else {\r
+                                       break;\r
+                               } else if (tries == 2) { // on last try set defaults\r
                                PrintAndLog("Could not get access rights for sector %2d. Trying with defaults...", sectorNo);\r
                                rights[sectorNo][0] = rights[sectorNo][1] = rights[sectorNo][2] = 0x00;\r
                                rights[sectorNo][3] = 0x01;\r
@@ -518,6 +520,7 @@ int CmdHF14AMfDump(const char *Cmd) {
                        rights[sectorNo][3] = 0x01;\r
                }\r
        }\r
+       }\r
        \r
        PrintAndLog("|-----------------------------------------|");\r
        PrintAndLog("|----- Dumping all blocks to file... -----|");\r
@@ -527,7 +530,7 @@ int CmdHF14AMfDump(const char *Cmd) {
        for (sectorNo = 0; isOK && sectorNo < numSectors; sectorNo++) {\r
                for (blockNo = 0; isOK && blockNo < NumBlocksPerSector(sectorNo); blockNo++) {\r
                        bool received = false;\r
-                       \r
+                       for (tries = 0; tries < 3; tries++) {                   \r
                        if (blockNo == NumBlocksPerSector(sectorNo) - 1) {              // sector trailer. At least the Access Conditions can always be read with key A. \r
                                UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 0, 0}};\r
                                memcpy(c.d.asBytes, keyA[sectorNo], 6);\r
@@ -544,12 +547,18 @@ int CmdHF14AMfDump(const char *Cmd) {
                                } else if (rights[sectorNo][data_area] == 0x07) {                                                                               // no key would work\r
                                        isOK = false;\r
                                        PrintAndLog("Access rights do not allow reading of sector %2d block %3d", sectorNo, blockNo);\r
+                                               tries = 2;\r
                                } else {                                                                                                                                                                // key A would work\r
                                        UsbCommand c = {CMD_MIFARE_READBL, {FirstBlockOfSector(sectorNo) + blockNo, 0, 0}};\r
                                        memcpy(c.d.asBytes, keyA[sectorNo], 6);\r
                                        clearCommandBuffer();\r
                                        SendCommand(&c);\r
                                        received = WaitForResponseTimeout(CMD_ACK,&resp,1500);\r
+                                       }\r
+                               }\r
+                               if (received) {\r
+                                       isOK  = resp.arg[0] & 0xff;\r
+                                       if (isOK) break;\r
                                }\r
                        }\r
 \r
@@ -594,7 +603,6 @@ 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
-               fout = NULL;            \r
                PrintAndLog("Dumped %d blocks (%d bytes) to file dumpdata.bin", numblocks, 16*numblocks);\r
        }\r
                \r