cardem: choose a more reasonable default ATR

PCSCd does not like invalid ATRs

Change-Id: I1eebfdc06be55931c2e80e2b515ac3a559737c38
This commit is contained in:
Eric Wild 2020-04-03 21:21:27 +02:00
parent e0f4d9216e
commit ccceb0ffba
2 changed files with 38 additions and 4 deletions

View File

@ -1297,8 +1297,24 @@ void card_emu_wt_expired(void *handle)
}
}
/* shortest ATR possible (uses default speed and no options) */
static const uint8_t default_atr[] = { 0x3B, 0x00 };
/* reasonable ATR offering all protocols and voltages
* smartphones might not care, but other readers do
TS = 0x3B Direct Convention
T0 = 0x80 Y(1): b1000, K: 0 (historical bytes)
TD(1) = 0x80 Y(i+1) = b1000, Protocol T=0
----
TD(2) = 0x81 Y(i+1) = b1000, Protocol T=1
----
TD(3) = 0x1F Y(i+1) = b0001, Protocol T=15
----
TA(4) = 0xC7 Clock stop: no preference - Class accepted by the card: (3G) A 5V B 3V C 1.8V
----
Historical bytes
TCK = 0x59 correct checksum
* */
static const uint8_t default_atr[] = { 0x3B, 0x80, 0x80, 0x81 , 0x1F, 0xC7, 0x59};
static struct card_handle card_handles[NUM_SLOTS];

View File

@ -50,6 +50,26 @@
#include <osmocom/sim/class_tables.h>
#include <osmocom/sim/sim.h>
/*
reasonable ATR offering all protocols and voltages
smartphones might not care, but other readers do
TS = 0x3B Direct Convention
T0 = 0x80 Y(1): b1000, K: 0 (historical bytes)
TD(1) = 0x80 Y(i+1) = b1000, Protocol T=0
----
TD(2) = 0x81 Y(i+1) = b1000, Protocol T=1
----
TD(3) = 0x1F Y(i+1) = b0001, Protocol T=15
----
TA(4) = 0xC7 Clock stop: no preference - Class accepted by the card: (3G) A 5V B 3V C 1.8V
----
Historical bytes
TCK = 0x59 correct checksum
*/
static uint8_t real_atr[] = { 0x3B, 0x80, 0x80, 0x81 , 0x1F, 0xC7, 0x59};
static void atr_update_csum(uint8_t *atr, unsigned int atr_len)
{
uint8_t csum = 0;
@ -437,8 +457,6 @@ int main(int argc, char **argv)
osmo_st2_modem_sim_select_remote(ci->slot);
if (!skip_atr) {
/* set the ATR */
uint8_t real_atr[] = { 0x3B, 0x00 }; // the simplest ATR
atr_update_csum(real_atr, sizeof(real_atr));
osmo_st2_cardem_request_set_atr(ci, real_atr, sizeof(real_atr));
}