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hf 14a reader enhancement

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In order to be able to distinguish between Mifare Classic and Mifare Plus
in Security Level 1 (SL1, Mifare Classic Compatibility Mode), hf 14a reader
now always tries RATS - even if SAK claims not to support ISO14443-4.
This commit is contained in:
pwpiwi 2014-06-30 08:21:50 +02:00
parent 0dcf1ee3fd
commit 19d6d91fd5
1 changed files with 74 additions and 46 deletions
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120
client/cmdhf14a.c
View file

@ -183,27 +183,29 @@ void iso14a_set_timeout(uint32_t timeout) {
int CmdHF14AReader(const char *Cmd) int CmdHF14AReader(const char *Cmd)
{ {
UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT, 0, 0}}; UsbCommand c = {CMD_READER_ISO_14443a, {ISO14A_CONNECT | ISO14A_NO_DISCONNECT, 0, 0}};
SendCommand(&c); SendCommand(&c);
UsbCommand resp; UsbCommand resp;
WaitForResponse(CMD_ACK,&resp); WaitForResponse(CMD_ACK,&resp);
iso14a_card_select_t *card = (iso14a_card_select_t *)resp.d.asBytes; iso14a_card_select_t card;
memcpy(&card, (iso14a_card_select_t *)resp.d.asBytes, sizeof(iso14a_card_select_t));
if(resp.arg[0] == 0) { uint64_t select_status = resp.arg[0];
if(select_status == 0) {
PrintAndLog("iso14443a card select failed"); PrintAndLog("iso14443a card select failed");
return 0; return 0;
} }
PrintAndLog("ATQA : %02x %02x", card->atqa[1], card->atqa[0]); PrintAndLog("ATQA : %02x %02x", card.atqa[1], card.atqa[0]);
PrintAndLog(" UID : %s", sprint_hex(card->uid, card->uidlen)); PrintAndLog(" UID : %s", sprint_hex(card.uid, card.uidlen));
PrintAndLog(" SAK : %02x [%d]", card->sak, resp.arg[0]); PrintAndLog(" SAK : %02x [%d]", card.sak, resp.arg[0]);
switch (card->sak) { switch (card.sak) {
case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break; case 0x00: PrintAndLog("TYPE : NXP MIFARE Ultralight | Ultralight C"); break;
case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break; case 0x04: PrintAndLog("TYPE : NXP MIFARE (various !DESFire !DESFire EV1)"); break;
case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break; case 0x08: PrintAndLog("TYPE : NXP MIFARE CLASSIC 1k | Plus 2k SL1"); break;
case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break; case 0x09: PrintAndLog("TYPE : NXP MIFARE Mini 0.3k"); break;
case 0x10: PrintAndLog("TYPE : NXP MIFARE Plus 2k SL2"); break; case 0x10: PrintAndLog("TYPE : NXP MIFARE Plus 2k SL2"); break;
@ -217,67 +219,93 @@ int CmdHF14AReader(const char *Cmd)
case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break; case 0x98: PrintAndLog("TYPE : Gemplus MPCOS"); break;
default: ; default: ;
} }
if(resp.arg[0] == 1) {
// try to request ATS even if tag claims not to support it
if (select_status == 2) {
uint8_t rats[] = { 0xE0, 0x80 }; // FSDI=8 (FSD=256), CID=0
c.arg[0] = ISO14A_RAW | ISO14A_APPEND_CRC | ISO14A_NO_DISCONNECT;
c.arg[1] = 2;
c.arg[2] = 0;
memcpy(c.d.asBytes, rats, 2);
SendCommand(&c);
WaitForResponse(CMD_ACK,&resp);
memcpy(&card.ats, resp.d.asBytes, resp.arg[0]);
card.ats_len = resp.arg[0];
}
// disconnect
c.arg[0] = 0;
c.arg[1] = 0;
c.arg[2] = 0;
SendCommand(&c);
if(card.ats_len >= 3) { // a valid ATS consists of at least the length byte TL and 2 CRC bytes
bool ta1 = 0, tb1 = 0, tc1 = 0; bool ta1 = 0, tb1 = 0, tc1 = 0;
int pos; int pos;
PrintAndLog(" ATS : %s", sprint_hex(card->ats, card->ats_len)); if (!(card.sak & 0x02)) {
if (card->ats_len > 0) { PrintAndLog("SAK incorrectly claims that card doesn't support RATS");
PrintAndLog(" - TL : length is %d bytes", card->ats[0]);
} }
if (card->ats_len > 1) { PrintAndLog(" ATS : %s", sprint_hex(card.ats, card.ats_len));
ta1 = (card->ats[1] & 0x10) == 0x10; if (card.ats_len > 0) {
tb1 = (card->ats[1] & 0x20) == 0x20; PrintAndLog(" - TL : length is %d bytes", card.ats[0]);
tc1 = (card->ats[1] & 0x40) == 0x40; }
if (card.ats_len > 1) {
ta1 = (card.ats[1] & 0x10) == 0x10;
tb1 = (card.ats[1] & 0x20) == 0x20;
tc1 = (card.ats[1] & 0x40) == 0x40;
PrintAndLog(" - T0 : TA1 is%s present, TB1 is%s present, " PrintAndLog(" - T0 : TA1 is%s present, TB1 is%s present, "
"TC1 is%s present, FSCI is %d", "TC1 is%s present, FSCI is %d",
(ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"), (ta1 ? "" : " NOT"), (tb1 ? "" : " NOT"), (tc1 ? "" : " NOT"),
(card->ats[1] & 0x0f)); (card.ats[1] & 0x0f));
} }
pos = 2; pos = 2;
if (ta1 && card->ats_len > pos) { if (ta1 && card.ats_len > pos) {
char dr[16], ds[16]; char dr[16], ds[16];
dr[0] = ds[0] = '\0'; dr[0] = ds[0] = '\0';
if (card->ats[pos] & 0x10) strcat(ds, "2, "); if (card.ats[pos] & 0x10) strcat(ds, "2, ");
if (card->ats[pos] & 0x20) strcat(ds, "4, "); if (card.ats[pos] & 0x20) strcat(ds, "4, ");
if (card->ats[pos] & 0x40) strcat(ds, "8, "); if (card.ats[pos] & 0x40) strcat(ds, "8, ");
if (card->ats[pos] & 0x01) strcat(dr, "2, "); if (card.ats[pos] & 0x01) strcat(dr, "2, ");
if (card->ats[pos] & 0x02) strcat(dr, "4, "); if (card.ats[pos] & 0x02) strcat(dr, "4, ");
if (card->ats[pos] & 0x04) strcat(dr, "8, "); if (card.ats[pos] & 0x04) strcat(dr, "8, ");
if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0'; if (strlen(ds) != 0) ds[strlen(ds) - 2] = '\0';
if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0'; if (strlen(dr) != 0) dr[strlen(dr) - 2] = '\0';
PrintAndLog(" - TA1 : different divisors are%s supported, " PrintAndLog(" - TA1 : different divisors are%s supported, "
"DR: [%s], DS: [%s]", "DR: [%s], DS: [%s]",
(card->ats[pos] & 0x80 ? " NOT" : ""), dr, ds); (card.ats[pos] & 0x80 ? " NOT" : ""), dr, ds);
pos++; pos++;
} }
if (tb1 && card->ats_len > pos) { if (tb1 && card.ats_len > pos) {
PrintAndLog(" - TB1 : SFGI = %d, FWI = %d", PrintAndLog(" - TB1 : SFGI = %d, FWI = %d",
(card->ats[pos] & 0x08), (card.ats[pos] & 0x08),
(card->ats[pos] & 0x80) >> 4); (card.ats[pos] & 0x80) >> 4);
pos++; pos++;
} }
if (tc1 && card->ats_len > pos) { if (tc1 && card.ats_len > pos) {
PrintAndLog(" - TC1 : NAD is%s supported, CID is%s supported", PrintAndLog(" - TC1 : NAD is%s supported, CID is%s supported",
(card->ats[pos] & 0x01) ? "" : " NOT", (card.ats[pos] & 0x01) ? "" : " NOT",
(card->ats[pos] & 0x02) ? "" : " NOT"); (card.ats[pos] & 0x02) ? "" : " NOT");
pos++; pos++;
} }
if (card->ats_len > pos) { if (card.ats_len > pos) {
char *tip = ""; char *tip = "";
if (card->ats_len - pos > 7) { if (card.ats_len - pos > 7) {
if (memcmp(card->ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) { if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x01\xBC\xD6", 7) == 0) {
tip = "-> MIFARE Plus X 2K or 4K"; tip = "-> MIFARE Plus X 2K or 4K";
} else if (memcmp(card->ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) { } else if (memcmp(card.ats + pos, "\xC1\x05\x2F\x2F\x00\x35\xC7", 7) == 0) {
tip = "-> MIFARE Plus S 2K or 4K"; tip = "-> MIFARE Plus S 2K or 4K";
} }
} }
PrintAndLog(" - HB : %s%s", sprint_hex(card->ats + pos, card->ats_len - pos - 2), tip); PrintAndLog(" - HB : %s%s", sprint_hex(card.ats + pos, card.ats_len - pos - 2), tip);
if (card->ats[pos] == 0xC1) { if (card.ats[pos] == 0xC1) {
PrintAndLog(" c1 -> Mifare or (multiple) virtual cards of various type"); PrintAndLog(" c1 -> Mifare or (multiple) virtual cards of various type");
PrintAndLog(" %02x -> Length is %d bytes", PrintAndLog(" %02x -> Length is %d bytes",
card->ats[pos + 1], card->ats[pos + 1]); card.ats[pos + 1], card.ats[pos + 1]);
switch (card->ats[pos + 2] & 0xf0) { switch (card.ats[pos + 2] & 0xf0) {
case 0x10: case 0x10:
PrintAndLog(" 1x -> MIFARE DESFire"); PrintAndLog(" 1x -> MIFARE DESFire");
break; break;
@ -285,7 +313,7 @@ int CmdHF14AReader(const char *Cmd)
PrintAndLog(" 2x -> MIFARE Plus"); PrintAndLog(" 2x -> MIFARE Plus");
break; break;
} }
switch (card->ats[pos + 2] & 0x0f) { switch (card.ats[pos + 2] & 0x0f) {
case 0x00: case 0x00:
PrintAndLog(" x0 -> <1 kByte"); PrintAndLog(" x0 -> <1 kByte");
break; break;
@ -302,7 +330,7 @@ int CmdHF14AReader(const char *Cmd)
PrintAndLog(" x0 -> 8 kByte"); PrintAndLog(" x0 -> 8 kByte");
break; break;
} }
switch (card->ats[pos + 3] & 0xf0) { switch (card.ats[pos + 3] & 0xf0) {
case 0x00: case 0x00:
PrintAndLog(" 0x -> Engineering sample"); PrintAndLog(" 0x -> Engineering sample");
break; break;
@ -310,7 +338,7 @@ int CmdHF14AReader(const char *Cmd)
PrintAndLog(" 2x -> Released"); PrintAndLog(" 2x -> Released");
break; break;
} }
switch (card->ats[pos + 3] & 0x0f) { switch (card.ats[pos + 3] & 0x0f) {
case 0x00: case 0x00:
PrintAndLog(" x0 -> Generation 1"); PrintAndLog(" x0 -> Generation 1");
break; break;
@ -321,7 +349,7 @@ int CmdHF14AReader(const char *Cmd)
PrintAndLog(" x2 -> Generation 3"); PrintAndLog(" x2 -> Generation 3");
break; break;
} }
switch (card->ats[pos + 4] & 0x0f) { switch (card.ats[pos + 4] & 0x0f) {
case 0x00: case 0x00:
PrintAndLog(" x0 -> Only VCSL supported"); PrintAndLog(" x0 -> Only VCSL supported");
break; break;
@ -335,10 +363,10 @@ int CmdHF14AReader(const char *Cmd)
} }
} }
} else { } else {
PrintAndLog("proprietary non iso14443a-4 card found, RATS not supported"); PrintAndLog("proprietary non iso14443-4 card found, RATS not supported");
} }
return resp.arg[0]; return select_status;
} }
// Collect ISO14443 Type A UIDs // Collect ISO14443 Type A UIDs