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[proxmark3-svn] / common / protocols.c

#include <string.h>
#include <stdint.h>
#include <stdarg.h>
#include "protocols.h"

// ATA55xx shared presets & routines
uint32_t GetT55xxClockBit(uint32_t clock) {
        switch (clock) {
                case 128:
                        return T55x7_BITRATE_RF_128;
                case 100:
                        return T55x7_BITRATE_RF_100;
                case 64:
                        return T55x7_BITRATE_RF_64;
                case 50:
                        return T55x7_BITRATE_RF_50;
                case 40:
                        return T55x7_BITRATE_RF_40;
                case 32:
                        return T55x7_BITRATE_RF_32;
                case 16:
                        return T55x7_BITRATE_RF_16;
                case 8:
                        return T55x7_BITRATE_RF_8;
                default:
                        return 0;
        }
}

#ifndef ON_DEVICE
#include "ui.h"
#define prnt PrintAndLog

// iclass / picopass chip config structures and shared routines
typedef struct {
        uint8_t app_limit;      //[8]
        uint8_t otp[2];         //[9-10]
        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;

typedef struct {
        uint8_t csn[8];
        picopass_conf_block conf;
        uint8_t epurse[8];
        uint8_t key_d[8];
        uint8_t key_c[8];
        uint8_t app_issuer_area[8];
} picopass_hdr;

uint8_t isset(uint8_t val, uint8_t mask) {
        return (val & mask);
}

uint8_t notset(uint8_t val, uint8_t mask) {
        return !(val & mask);
}

void fuse_config(const picopass_hdr *hdr) {
        uint8_t fuses = hdr->conf.fuses;

        if (isset(fuses,FUSE_FPERS))prnt("      Mode: Personalization [Programmable]");
        else prnt("     Mode: Application [Locked]");

        if (isset(fuses, FUSE_CODING1))
                prnt("  Coding: RFU");
        else
        {
                if( isset( fuses , FUSE_CODING0)) prnt("        Coding: ISO 14443-2 B/ISO 15693");
                else prnt("     Coding: ISO 14443B only");
        }
        if( isset (fuses,FUSE_CRYPT1 | FUSE_CRYPT0 )) prnt("    Crypt: Secured page, keys not locked");
        if( isset (fuses,FUSE_CRYPT1) && notset( fuses, FUSE_CRYPT0 )) prnt("   Crypt: Secured page, keys not locked");
        if( notset (fuses,FUSE_CRYPT1) && isset( fuses, FUSE_CRYPT0 )) prnt("   Crypt: Non secured page");
        if( notset (fuses,FUSE_CRYPT1) && notset( fuses, FUSE_CRYPT0 )) prnt("  Crypt: No auth possible. Read only if RA is enabled");

        if( isset( fuses, FUSE_RA)) prnt("      RA: Read access enabled");
        else prnt("     RA: Read access not enabled");
}

void getMemConfig(uint8_t mem_cfg, uint8_t chip_cfg, uint8_t *max_blk, uint8_t *app_areas, uint8_t *kb) {
        // mem-bit 5, mem-bit 7, chip-bit 4: defines chip type
        if(isset(chip_cfg, 0x10) && notset(mem_cfg, 0x80) && notset(mem_cfg, 0x20)) {
                *kb = 2;
                *app_areas = 2;
                *max_blk = 31;
        } else if(isset(chip_cfg, 0x10) && isset(mem_cfg, 0x80) && notset(mem_cfg, 0x20)) {
                *kb = 16;
                *app_areas = 2;
                *max_blk = 255; //16kb
        } else if(notset(chip_cfg, 0x10) && notset(mem_cfg, 0x80) && notset(mem_cfg, 0x20)) {
                *kb = 16;
                *app_areas = 16;
                *max_blk = 255; //16kb
        } else if(isset(chip_cfg, 0x10) && isset(mem_cfg, 0x80) && isset(mem_cfg, 0x20)) {
                *kb = 32;
                *app_areas = 3;
                *max_blk = 255; //16kb
        } else if(notset(chip_cfg, 0x10) && notset(mem_cfg, 0x80) && isset(mem_cfg, 0x20)) {
                *kb = 32;
                *app_areas = 17;
                *max_blk = 255; //16kb
        } else {
                *kb = 32;
                *app_areas = 2;
                *max_blk = 255;
        }
}

void mem_app_config(const picopass_hdr *hdr) {
        uint8_t mem = hdr->conf.mem_config;
        uint8_t chip = hdr->conf.chip_config;
        uint8_t applimit = hdr->conf.app_limit;
        if (applimit < 6) applimit = 26;
        uint8_t kb = 2;
        uint8_t app_areas = 2;
        uint8_t max_blk = 31;
        getMemConfig(mem, chip, &max_blk, &app_areas, &kb);
        prnt("  Mem: %u KBits/%u App Areas (%u * 8 bytes) [%02X]", kb, app_areas, max_blk, mem);
        prnt("  AA1: blocks 06-%02X", applimit);
        prnt("  AA2: blocks %02X-%02X", applimit+1, max_blk);
}
void print_picopass_info(const picopass_hdr *hdr) {
        fuse_config(hdr);
        mem_app_config(hdr);
}
void printIclassDumpInfo(uint8_t* iclass_dump) {
        print_picopass_info((picopass_hdr *) iclass_dump);
}

/*
void test() {
        picopass_hdr hdr = {0x27,0xaf,0x48,0x01,0xf9,0xff,0x12,0xe0,0x12,0xff,0xff,0xff,0x7f,0x1f,0xff,0x3c};
        prnt("Picopass configuration:");
        print_picopass_info(&hdr);
}
int main(int argc, char *argv[]) {
        test();
        return 0;
}
*/

#endif
//ON_DEVICE