cvs.zerfleddert.de Git - proxmark3-svn/blob - common/protocols.c

   1 #include <strings.h>
   2 #include <string.h>
   3 #include <stdint.h>
   4 #include <stdarg.h>
   5 #include "protocols.h"
   6 #ifndef ON_DEVICE
   7 #include "ui.h"
   8 #define prnt PrintAndLog
   9 #endif
  10
  11
  12
  13 typedef struct {
  14         uint8_t app_limit;      //[8]
  15         uint8_t otp[2];         //[9-10]
  16         uint8_t block_writelock;//[11]
  17         uint8_t chip_config;    //[12]
  18         uint8_t mem_config;     //[13]
  19         uint8_t eas;            //[14]
  20         uint8_t fuses;          //[15]
  21 }picopass_conf_block;
  22
  23
  24 typedef struct {
  25         uint8_t csn[8];
  26         picopass_conf_block conf;
  27         uint8_t epurse[8];
  28         uint8_t key_d[8];
  29         uint8_t key_c[8];
  30         uint8_t app_issuer_area[8];
  31
  32 }picopass_hdr;
  33
  34
  35 //#define prnt printf
  36 /*void prnt(char *fmt,...)
  37 {
  38         va_list argptr;
  39         va_start(argptr, fmt);
  40         vprintf(fmt, argptr);
  41         printf("          "); // cleaning prompt
  42         va_end(argptr);
  43         printf("\n");
  44 }
  45 */
  46 uint8_t isset(uint8_t val, uint8_t mask)
  47 {
  48         return (val & mask);
  49 }
  50
  51 uint8_t notset(uint8_t val, uint8_t mask){
  52         return !(val & mask);
  53 }
  54
  55 void fuse_config(const picopass_hdr *hdr)
  56 {
  57         uint8_t fuses = hdr->conf.fuses;
  58
  59         if (isset(fuses,FUSE_FPERS))prnt("      Mode: Personalization [Programmable]");
  60         else prnt("     Mode: Application [Locked]");
  61
  62         if (isset(fuses, FUSE_CODING1))
  63                 prnt("  Coding: RFU");
  64         else
  65         {
  66                 if( isset( fuses , FUSE_CODING0)) prnt("        Coding: ISO 14443-2 B/ISO 15693");
  67                 else prnt("     Coding: ISO 14443B only");
  68         }
  69         if( isset (fuses,FUSE_CRYPT1 | FUSE_CRYPT0 )) prnt("    Crypt: Secured page, keys not locked");
  70         if( isset (fuses,FUSE_CRYPT1) && notset( fuses, FUSE_CRYPT0 )) prnt("   Crypt: Secured page, keys not locked");
  71         if( notset (fuses,FUSE_CRYPT1) && isset( fuses, FUSE_CRYPT0 )) prnt("   Crypt: Non secured page");
  72         if( notset (fuses,FUSE_CRYPT1) && notset( fuses, FUSE_CRYPT0 )) prnt("  Crypt: No auth possible. Read only if RA is enabled");
  73
  74         if( isset( fuses, FUSE_RA)) prnt("      RA: Read access enabled");
  75         else prnt("     RA: Read access not enabled");
  76 }
  77
  78 void getMemConfig(uint8_t mem_cfg, uint8_t chip_cfg, uint8_t *max_blk, uint8_t *books, uint8_t *kb) {
  79         // mem-bit 5, mem-bit 7, chip-bit 4: defines chip type
  80         if(isset(chip_cfg, 0x10) && notset(mem_cfg, 0x80) && notset(mem_cfg, 0x20)) {
  81                 kb = 2;
  82                 books = 1;
  83                 max_blk = 31;
  84         } else if(isset(chip_cfg, 0x10) && isset(mem_cfg, 0x80) && notset(mem_cfg, 0x20)) {
  85                 kb = 16;
  86                 books = 2;
  87                 max_blk = 255; //16kb
  88         } else if(notset(chip_cfg, 0x10) && notset(mem_cfg, 0x80) && notset(mem_cfg, 0x20)) {
  89                 kb = 16;
  90                 books = 16;
  91                 max_blk = 255; //16kb
  92         } else if(isset(chip_cfg, 0x10) && isset(mem_cfg, 0x80) && isset(mem_cfg, 0x20)) {
  93                 kb = 32;
  94                 books = 2;
  95                 max_blk = 255; //16kb
  96         } else if(notset(chip_cfg, 0x10) && notset(mem_cfg, 0x80) && isset(mem_cfg, 0x20)) {
  97                 kb = 32;
  98                 books = 16;
  99                 max_blk = 255; //16kb
 100         } else {
 101                 kb = 32;
 102                 max_blk = 255;
 103         }
 104 }
 105
 106 void mem_app_config(const picopass_hdr *hdr)
 107 {
 108         uint8_t mem = hdr->conf.mem_config;
 109         uint8_t chip = hdr->conf.chip_config;
 110         uint8_t applimit = hdr->conf.app_limit;
 111         if (applimit < 6) applimit = 26;
 112         uint8_t kb = 2;
 113         uint8_t books = 1;
 114         uint8_t max_blk = 31;
 115         getMemConfig(mem, chip, &max_blk, &books, &kb);
 116         prnt("  Mem: %u KBits/%u Books (%u * 8 bytes) [%02X]", kb, books, max_blk, mem);
 117         prnt("  AA1: blocks 06-%02X", applimit);
 118         prnt("  AA2: blocks %02X-%02X", applimit+1, max_blk);
 119 }
 120 void print_picopass_info(const picopass_hdr *hdr)
 121 {
 122         fuse_config(hdr);
 123         mem_app_config(hdr);
 124 }
 125 void printIclassDumpInfo(uint8_t* iclass_dump)
 126 {
 127 //      picopass_hdr hdr;
 128 //      memcpy(&hdr, iclass_dump, sizeof(picopass_hdr));
 129         print_picopass_info((picopass_hdr *) iclass_dump);
 130 }
 131
 132 /*
 133 void test()
 134 {
 135         picopass_hdr hdr = {0x27,0xaf,0x48,0x01,0xf9,0xff,0x12,0xe0,0x12,0xff,0xff,0xff,0x7f,0x1f,0xff,0x3c};
 136         prnt("Picopass configuration:");
 137         print_picopass_info(&hdr);
 138 }
 139 int main(int argc, char *argv[])
 140 {
 141         test();
 142         return 0;
 143 }
 144 */