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OpenPGP: emulate SC_PIN_CMD_GET_INFO command for cards not supporting it

This commit is contained in:
Peter Marschall 2018-10-27 17:31:54 +02:00 committed by Frank Morgner
parent 7092d32830
commit d577802ea7
1 changed files with 22 additions and 0 deletions
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22
src/libopensc/card-openpgp.c
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@ -1882,6 +1882,28 @@ pgp_pin_cmd(sc_card_t *card, struct sc_pin_cmd_data *data, int *tries_left)
LOG_TEST_RET(card->ctx, SC_ERROR_INVALID_ARGUMENTS,
"key-id should be 1, 2, 3.");
}
/* emulate SC_PIN_CMD_GET_INFO command for cards not supporting it */
if (data->cmd == SC_PIN_CMD_GET_INFO && (card->caps & SC_CARD_CAP_ISO7816_PIN_INFO) == 0) {
u8 c4data[10];
int r;
r = sc_get_data(card, 0x00c4, c4data, sizeof(c4data));
LOG_TEST_RET(card->ctx, r, "reading CHV status bytes failed");
if (r != 7)
LOG_TEST_RET(card->ctx, SC_ERROR_OBJECT_NOT_VALID,
"CHV status bytes have unexpected length");
data->pin1.tries_left = c4data[4 + (data->pin_reference & 0x0F)];
data->pin1.max_tries = 3;
data->pin1.logged_in = SC_PIN_STATE_UNKNOWN;
if (tries_left != NULL)
*tries_left = data->pin1.tries_left;
LOG_FUNC_RETURN(card->ctx, SC_SUCCESS);
}
LOG_FUNC_RETURN(card->ctx, iso_ops->pin_cmd(card, data, tries_left));
}