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nfc-utils: More decoding of ISO14443-4 ATS

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This commit is contained in:
Philippe Teuwen 2010-10-15 08:33:46 +00:00
parent 33a99288f3
commit 91f73e1802
1 changed files with 89 additions and 44 deletions
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115
examples/nfc-utils.c
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@ -109,41 +109,86 @@ print_nfc_iso14443a_info (const nfc_iso14443a_info_t nai)
print_hex (nai.abtUid, nai.szUidLen); print_hex (nai.abtUid, nai.szUidLen);
printf (" SAK (SEL_RES): "); printf (" SAK (SEL_RES): ");
print_hex (&nai.btSak, 1); print_hex (&nai.btSak, 1);
if (nai.szAtsLen) {
printf (" ATS (ATR): ");
print_hex (nai.abtAts, nai.szAtsLen);
}
if (nai.szAtsLen) {
// Decode ATS according to ISO/IEC 14443-4 (5.2 Answer to select)
printf (" T0: " );
size_t offset = 1;
if (nai.abtAts[0] & 0x10) { // TA
printf ("TA=%02x ", nai.abtAts[offset]);
offset++;
}
if (nai.abtAts[0] & 0x20) { // TB
printf ("TB=%02x ", nai.abtAts[offset]);
offset++;
}
if (nai.abtAts[0] & 0x40) { // TC
printf ("TC=%02x ", nai.abtAts[offset]);
offset++;
}
printf ("\n");
if (nai.szAtsLen > offset) {
// XXX More decoding can be done following ISO/IEC 7816-4 (8.1.1 Historical bytes)
printf (" Historical bytes: " );
print_hex (nai.abtAts + offset, (nai.szAtsLen - offset));
}
}
if ((nai.btSak & SAK_ISO14443_4_COMPLIANT) || (nai.btSak & SAK_ISO18092_COMPLIANT)) { if ((nai.btSak & SAK_ISO14443_4_COMPLIANT) || (nai.btSak & SAK_ISO18092_COMPLIANT)) {
printf (" Compliant with: "); printf ("* Compliant with: ");
if (nai.btSak & SAK_ISO14443_4_COMPLIANT) if (nai.btSak & SAK_ISO14443_4_COMPLIANT)
printf ("ISO/IEC 14443-4 "); printf ("ISO/IEC 14443-4 ");
if (nai.btSak & SAK_ISO18092_COMPLIANT) if (nai.btSak & SAK_ISO18092_COMPLIANT)
printf ("ISO/IEC 18092"); printf ("ISO/IEC 18092");
printf ("\n"); printf ("\n");
} }
if (nai.szAtsLen) {
printf (" ATS: ");
print_hex (nai.abtAts, nai.szAtsLen);
}
if (nai.szAtsLen) {
// Decode ATS according to ISO/IEC 14443-4 (5.2 Answer to select)
const int iMaxFrameSizes[] = { 16, 24, 32, 40, 48, 64, 96, 128, 256 };
printf ("* Max Frame Size accepted by PICC: %d bytes\n", iMaxFrameSizes[nai.abtAts[0] & 0x0F]);
size_t offset = 1;
if (nai.abtAts[0] & 0x10) { // TA(1) present
byte_t TA = nai.abtAts[offset];
offset++;
printf ("* Bit Rate Capability:\n");
if (TA == 0) {
printf (" * PICC supports only 106 kbits/s in both directions\n");
}
if (TA & 1<<7) {
printf (" * Same bitrate in both directions mandatory\n");
}
if (TA & 1<<4) {
printf (" * PICC to PCD, DS=2, bitrate 212 kbits/s supported\n");
}
if (TA & 1<<5) {
printf (" * PICC to PCD, DS=4, bitrate 424 kbits/s supported\n");
}
if (TA & 1<<6) {
printf (" * PICC to PCD, DS=8, bitrate 847 kbits/s supported\n");
}
if (TA & 1<<0) {
printf (" * PCD to PICC, DR=2, bitrate 212 kbits/s supported\n");
}
if (TA & 1<<1) {
printf (" * PCD to PICC, DR=4, bitrate 424 kbits/s supported\n");
}
if (TA & 1<<2) {
printf (" * PCD to PICC, DR=8, bitrate 847 kbits/s supported\n");
}
if (TA & 1<<3) {
printf (" * ERROR unknown value\n");
}
}
if (nai.abtAts[0] & 0x20) { // TB(1) present
byte_t TB= nai.abtAts[offset];
offset++;
printf ("* Frame Waiting Time: %.4g ms\n",256.0*16.0*(1<<((TB & 0xf0) >> 4))/13560.0);
if ((TB & 0x0f) == 0) {
printf ("* No Start-up Frame Guard Time required\n");
} else {
printf ("* Start-up Frame Guard Time: %.4g ms\n",256.0*16.0*(1<<(TB & 0x0f))/13560.0);
}
}
if (nai.abtAts[0] & 0x40) { // TC(1) present
byte_t TC = nai.abtAts[offset];
offset++;
if (TC & 0x1) {
printf("* Node ADdress supported\n");
} else {
printf("* Node ADdress not supported\n");
}
if (TC & 0x2) {
printf("* Card IDentifier supported\n");
} else {
printf("* Card IDentifier not supported\n");
}
}
if (nai.szAtsLen > offset) {
// XXX More decoding can be done following ISO/IEC 7816-4 (8.1.1 Historical bytes)
printf ("* Historical bytes Tk: " );
print_hex (nai.abtAts + offset, (nai.szAtsLen - offset));
}
}
} }
void void
@ -158,10 +203,10 @@ print_nfc_felica_info (const nfc_felica_info_t nfi)
void void
print_nfc_jewel_info (const nfc_jewel_info_t nji) print_nfc_jewel_info (const nfc_jewel_info_t nji)
{ {
printf (" ATQA (SENS_RES): ");
print_hex (nji.btSensRes, 2);
printf (" 4-LSB JEWELID: "); printf (" 4-LSB JEWELID: ");
print_hex (nji.btId, 4); print_hex (nji.btId, 4);
printf (" SENS_RES: ");
print_hex (nji.btSensRes, 2);
} }
#define PI_ISO14443_4_SUPPORTED 0x01 #define PI_ISO14443_4_SUPPORTED 0x01
@ -177,7 +222,7 @@ print_nfc_iso14443b_info (const nfc_iso14443b_info_t nbi)
print_hex (nbi.abtApplicationData, 4); print_hex (nbi.abtApplicationData, 4);
printf (" Protocol Info: "); printf (" Protocol Info: ");
print_hex (nbi.abtProtocolInfo, 3); print_hex (nbi.abtProtocolInfo, 3);
printf ("Bit Rate Capability:\n"); printf ("* Bit Rate Capability:\n");
if (nbi.abtProtocolInfo[0] == 0) { if (nbi.abtProtocolInfo[0] == 0) {
printf (" * PICC supports only 106 kbits/s in both directions\n"); printf (" * PICC supports only 106 kbits/s in both directions\n");
} }
@ -206,14 +251,14 @@ print_nfc_iso14443b_info (const nfc_iso14443b_info_t nbi)
printf (" * ERROR unknown value\n"); printf (" * ERROR unknown value\n");
} }
if( (nbi.abtProtocolInfo[1] & 0xf0) <= 0x80 ) { if( (nbi.abtProtocolInfo[1] & 0xf0) <= 0x80 ) {
printf ("Maximum frame sizes: %d bytes\n", iMaxFrameSizes[((nbi.abtProtocolInfo[1] & 0xf0) >> 4)]); printf ("* Maximum frame sizes: %d bytes\n", iMaxFrameSizes[((nbi.abtProtocolInfo[1] & 0xf0) >> 4)]);
} }
if((nbi.abtProtocolInfo[1] & 0x0f) == PI_ISO14443_4_SUPPORTED) { if((nbi.abtProtocolInfo[1] & 0x0f) == PI_ISO14443_4_SUPPORTED) {
printf ("Protocol types supported: ISO/IEC 14443-4\n"); printf ("* Protocol types supported: ISO/IEC 14443-4\n");
} }
printf ("Frame Waiting Time: %.4g ms\n",256.0*16.0*(1<<((nbi.abtProtocolInfo[2] & 0xf0) >> 4))/13560.0); printf ("* Frame Waiting Time: %.4g ms\n",256.0*16.0*(1<<((nbi.abtProtocolInfo[2] & 0xf0) >> 4))/13560.0);
if((nbi.abtProtocolInfo[2] & (PI_NAD_SUPPORTED|PI_CID_SUPPORTED)) != 0) { if((nbi.abtProtocolInfo[2] & (PI_NAD_SUPPORTED|PI_CID_SUPPORTED)) != 0) {
printf ("Frame options supported: "); printf ("* Frame options supported: ");
if ((nbi.abtProtocolInfo[2] & PI_NAD_SUPPORTED) != 0) printf ("NAD "); if ((nbi.abtProtocolInfo[2] & PI_NAD_SUPPORTED) != 0) printf ("NAD ");
if ((nbi.abtProtocolInfo[2] & PI_CID_SUPPORTED) != 0) printf ("CID "); if ((nbi.abtProtocolInfo[2] & PI_CID_SUPPORTED) != 0) printf ("CID ");
printf("\n"); printf("\n");