diff options
Diffstat (limited to 'hw/usb')
| -rw-r--r-- | hw/usb/dev-smartcard-reader.c | 20 |
1 files changed, 12 insertions, 8 deletions
diff --git a/hw/usb/dev-smartcard-reader.c b/hw/usb/dev-smartcard-reader.c index 6653619610..6133edf05a 100644 --- a/hw/usb/dev-smartcard-reader.c +++ b/hw/usb/dev-smartcard-reader.c @@ -796,6 +796,12 @@ static void ccid_write_data_block(USBCCIDState *s, uint8_t slot, uint8_t seq, ccid_reset_error_status(s); } +static void ccid_report_error_failed(USBCCIDState *s, uint8_t error) +{ + s->bmCommandStatus = COMMAND_STATUS_FAILED; + s->bError = error; +} + static void ccid_write_data_block_answer(USBCCIDState *s, const uint8_t *data, uint32_t len) { @@ -803,7 +809,9 @@ static void ccid_write_data_block_answer(USBCCIDState *s, uint8_t slot; if (!ccid_has_pending_answers(s)) { - abort(); + DPRINTF(s, D_WARN, "error: no pending answer to return to guest\n"); + ccid_report_error_failed(s, ERROR_ICC_MUTE); + return; } ccid_remove_pending_answer(s, &slot, &seq); ccid_write_data_block(s, slot, seq, data, len); @@ -857,12 +865,6 @@ static void ccid_reset_parameters(USBCCIDState *s) memcpy(s->abProtocolDataStructure, abDefaultProtocolDataStructure, len); } -static void ccid_report_error_failed(USBCCIDState *s, uint8_t error) -{ - s->bmCommandStatus = COMMAND_STATUS_FAILED; - s->bError = error; -} - /* NOTE: only a single slot is supported (SLOT_0) */ static void ccid_on_slot_change(USBCCIDState *s, bool full) { @@ -1129,7 +1131,9 @@ void ccid_card_send_apdu_to_guest(CCIDCardState *card, s->bmCommandStatus = COMMAND_STATUS_NO_ERROR; answer = ccid_peek_next_answer(s); if (answer == NULL) { - abort(); + DPRINTF(s, D_WARN, "%s: error: unexpected lack of answer\n", __func__); + ccid_report_error_failed(s, ERROR_HW_ERROR); + return; } DPRINTF(s, 1, "APDU returned to guest %d (answer seq %d, slot %d)\n", len, answer->seq, answer->slot); |