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

   1 #include <stdio.h>
   2 #include <strings.h>
   3 #include <stdint.h>
   4 #include <stdarg.h>
   5
   6
   7 typedef struct {
   8         uint8_t app_limit;
   9         uint8_t otp[2];
  10         uint8_t block_writelock;
  11         uint8_t chip_config;
  12         uint8_t mem_config;
  13         uint8_t eas;
  14         uint8_t fuses;
  15 }picopass_conf_block;
  16
  17
  18 typedef struct {
  19         uint8_t csn[8];
  20         picopass_conf_block conf;
  21         uint8_t epurse[8];
  22         uint8_t key_d[8];
  23         uint8_t key_c[8];
  24         uint8_t app_issuer_area[8];
  25
  26 }picopass_hdr;
  27
  28 #define FUSE_FPERS   0x80
  29 #define FUSE_CODING1 0x40
  30 #define FUSE_CODING0 0x20
  31 #define FUSE_CRYPT1  0x10
  32 #define FUSE_CRYPT0  0x08
  33 #define FUSE_FPROD1  0x04
  34 #define FUSE_FPROD0  0x02
  35 #define FUSE_RA      0x01
  36
  37 //#define prnt printf
  38 void prnt(char *fmt,...)
  39 {
  40         va_list argptr;
  41         va_start(argptr, fmt);
  42         vprintf(fmt, argptr);
  43         printf("          "); // cleaning prompt
  44         va_end(argptr);
  45         printf("\n");
  46 }
  47
  48 uint8_t isset(uint8_t val, uint8_t mask)
  49 {
  50         return (val & mask);
  51 }
  52
  53 uint8_t notset(uint8_t val, uint8_t mask){
  54         return !(val & mask);
  55 }
  56
  57 void fuse_config(const picopass_hdr *hdr)
  58 {
  59         uint8_t fuses = hdr->conf.fuses;
  60
  61         if (isset(fuses,FUSE_FPERS))prnt("      Mode: Personalization [Programmable]");
  62         else prnt("     Mode: Application [Locked]");
  63
  64         if (isset(fuses, FUSE_CODING1))
  65                 prnt("  Coding: RFU");
  66         else
  67         {
  68                 if( isset( fuses , FUSE_CODING0)) prnt("        Coding: ISO 14443-2 B/ISO 15693");
  69                 else prnt("     Coding: ISO 14443B only");
  70         }
  71         if( isset (fuses,FUSE_CRYPT1 | FUSE_CRYPT0 )) prnt("    Crypt: Secured page, keys not locked");
  72         if( isset (fuses,FUSE_CRYPT1) && notset( fuses, FUSE_CRYPT0 )) prnt("   Crypt: Secured page, keys not locked");
  73         if( notset (fuses,FUSE_CRYPT1) && isset( fuses, FUSE_CRYPT0 )) prnt("   Crypt: Non secured page");
  74         if( notset (fuses,FUSE_CRYPT1) && notset( fuses, FUSE_CRYPT0 )) prnt("  Crypt: No auth possible. Read only if RA is enabled");
  75
  76         if( isset( fuses, FUSE_RA)) prnt("      RA: Read access enabled");
  77         else prnt("     RA: Read access not enabled");
  78 }
  79 void mem_config(const picopass_hdr *hdr)
  80 {
  81         uint8_t mem = hdr->conf.mem_config;
  82         if( isset (mem, 0x80)) prnt("   Mem: 16KBits (255 * 8 bytes)");
  83         else prnt("     Mem: 2 KBits ( 32 * 8 bytes)");
  84
  85 }
  86 void applimit_config(const picopass_hdr *hdr)
  87 {
  88         uint8_t applimit = hdr->conf.app_limit;
  89         prnt("  AA1: blocks 6-%d", applimit);
  90         prnt("  AA2: blocks %d-", (applimit+1));
  91 }
  92 void print_picopass_info(const picopass_hdr *hdr)
  93 {
  94         fuse_config(hdr);
  95         mem_config(hdr);
  96         applimit_config(hdr);
  97 }
  98 void test()
  99 {
 100         picopass_hdr hdr = {0x27,0xaf,0x48,0x01,0xf9,0xff,0x12,0xe0,0x12,0xff,0xff,0xff,0x7f,0x1f,0xff,0x3c};
 101         prnt("Picopass configuration:");
 102         print_picopass_info(&hdr);
 103 }
 104 int main(int argc, char *argv[])
 105 {
 106         test();
 107         return 0;
 108 }