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FIX: bug in nextwatch demod, which if the found psk bits was smaller than the preamb...
[proxmark3-svn] / common / protocols.c
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1defcf60 1#include <string.h>
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2#include <stdint.h>
3#include <stdarg.h>
1defcf60 4#include "protocols.h"
1d0ccbe0 5
6// ATA55xx shared presets & routines
7uint32_t GetT55xxClockBit(uint32_t clock) {
8 switch (clock) {
8ce3e4b4 9 case 128: return T55x7_BITRATE_RF_128;
10 case 100: return T55x7_BITRATE_RF_100;
11 case 64: return T55x7_BITRATE_RF_64;
12 case 50: return T55x7_BITRATE_RF_50;
13 case 40: return T55x7_BITRATE_RF_40;
14 case 32: return T55x7_BITRATE_RF_32;
15 case 16: return T55x7_BITRATE_RF_16;
16 case 8: return T55x7_BITRATE_RF_8;
17 default : return 0;
1d0ccbe0 18 }
19}
20
1defcf60
MHS
21#ifndef ON_DEVICE
22#include "ui.h"
23#define prnt PrintAndLog
b67f7ec3 24
1d0ccbe0 25// iclass / picopass chip config structures and shared routines
b67f7ec3 26typedef struct {
e98572a1 27 uint8_t app_limit; //[8]
28 uint8_t otp[2]; //[9-10]
29 uint8_t block_writelock;//[11]
30 uint8_t chip_config; //[12]
31 uint8_t mem_config; //[13]
32 uint8_t eas; //[14]
33 uint8_t fuses; //[15]
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34}picopass_conf_block;
35
36
37typedef struct {
38 uint8_t csn[8];
39 picopass_conf_block conf;
40 uint8_t epurse[8];
41 uint8_t key_d[8];
42 uint8_t key_c[8];
43 uint8_t app_issuer_area[8];
44
45}picopass_hdr;
46
1d0ccbe0 47uint8_t isset(uint8_t val, uint8_t mask) {
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48 return (val & mask);
49}
50
51uint8_t notset(uint8_t val, uint8_t mask){
52 return !(val & mask);
53}
54
1d0ccbe0 55void fuse_config(const picopass_hdr *hdr) {
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56 uint8_t fuses = hdr->conf.fuses;
57
58 if (isset(fuses,FUSE_FPERS))prnt(" Mode: Personalization [Programmable]");
59 else prnt(" Mode: Application [Locked]");
60
61 if (isset(fuses, FUSE_CODING1))
62 prnt(" Coding: RFU");
63 else
64 {
65 if( isset( fuses , FUSE_CODING0)) prnt(" Coding: ISO 14443-2 B/ISO 15693");
66 else prnt(" Coding: ISO 14443B only");
67 }
68 if( isset (fuses,FUSE_CRYPT1 | FUSE_CRYPT0 )) prnt(" Crypt: Secured page, keys not locked");
69 if( isset (fuses,FUSE_CRYPT1) && notset( fuses, FUSE_CRYPT0 )) prnt(" Crypt: Secured page, keys not locked");
70 if( notset (fuses,FUSE_CRYPT1) && isset( fuses, FUSE_CRYPT0 )) prnt(" Crypt: Non secured page");
71 if( notset (fuses,FUSE_CRYPT1) && notset( fuses, FUSE_CRYPT0 )) prnt(" Crypt: No auth possible. Read only if RA is enabled");
72
73 if( isset( fuses, FUSE_RA)) prnt(" RA: Read access enabled");
74 else prnt(" RA: Read access not enabled");
75}
b67f7ec3 76
e98572a1 77void getMemConfig(uint8_t mem_cfg, uint8_t chip_cfg, uint8_t *max_blk, uint8_t *app_areas, uint8_t *kb) {
78 // mem-bit 5, mem-bit 7, chip-bit 4: defines chip type
79 if(isset(chip_cfg, 0x10) && notset(mem_cfg, 0x80) && notset(mem_cfg, 0x20)) {
80 *kb = 2;
81 *app_areas = 2;
82 *max_blk = 31;
83 } else if(isset(chip_cfg, 0x10) && isset(mem_cfg, 0x80) && notset(mem_cfg, 0x20)) {
84 *kb = 16;
85 *app_areas = 2;
86 *max_blk = 255; //16kb
87 } else if(notset(chip_cfg, 0x10) && notset(mem_cfg, 0x80) && notset(mem_cfg, 0x20)) {
88 *kb = 16;
89 *app_areas = 16;
90 *max_blk = 255; //16kb
91 } else if(isset(chip_cfg, 0x10) && isset(mem_cfg, 0x80) && isset(mem_cfg, 0x20)) {
92 *kb = 32;
93 *app_areas = 3;
94 *max_blk = 255; //16kb
95 } else if(notset(chip_cfg, 0x10) && notset(mem_cfg, 0x80) && isset(mem_cfg, 0x20)) {
96 *kb = 32;
97 *app_areas = 17;
98 *max_blk = 255; //16kb
99 } else {
100 *kb = 32;
101 *app_areas = 2;
102 *max_blk = 255;
103 }
b67f7ec3 104}
e98572a1 105
1d0ccbe0 106void mem_app_config(const picopass_hdr *hdr) {
e98572a1 107 uint8_t mem = hdr->conf.mem_config;
108 uint8_t chip = hdr->conf.chip_config;
b67f7ec3 109 uint8_t applimit = hdr->conf.app_limit;
e98572a1 110 if (applimit < 6) applimit = 26;
111 uint8_t kb = 2;
112 uint8_t app_areas = 2;
113 uint8_t max_blk = 31;
114 getMemConfig(mem, chip, &max_blk, &app_areas, &kb);
115 prnt(" Mem: %u KBits/%u App Areas (%u * 8 bytes) [%02X]", kb, app_areas, max_blk, mem);
116 prnt(" AA1: blocks 06-%02X", applimit);
117 prnt(" AA2: blocks %02X-%02X", applimit+1, max_blk);
b67f7ec3 118}
1d0ccbe0 119void print_picopass_info(const picopass_hdr *hdr) {
b67f7ec3 120 fuse_config(hdr);
e98572a1 121 mem_app_config(hdr);
b67f7ec3 122}
1d0ccbe0 123void printIclassDumpInfo(uint8_t* iclass_dump) {
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124 print_picopass_info((picopass_hdr *) iclass_dump);
125}
126
127/*
1d0ccbe0 128void test() {
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129 picopass_hdr hdr = {0x27,0xaf,0x48,0x01,0xf9,0xff,0x12,0xe0,0x12,0xff,0xff,0xff,0x7f,0x1f,0xff,0x3c};
130 prnt("Picopass configuration:");
131 print_picopass_info(&hdr);
132}
1d0ccbe0 133int main(int argc, char *argv[]) {
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134 test();
135 return 0;
136}
1defcf60 137*/
1d0ccbe0 138
139#endif
140//ON_DEVICE
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