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card_emu: Correctly handle SW after reader -> card data phase

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This commit is contained in:
Harald Welte
2015-11-14 23:44:14 +01:00
parent 84ec252ff4
commit 61bb30e4ea
2 changed files with 12 additions and 7 deletions
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10
firmware/src_simtrace/card_emu.c
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@@ -386,7 +386,7 @@ static unsigned int t0_num_data_bytes(uint8_t p3, int reader_to_card)
}
/* add a just-received TPDU byte (from reader) to USB buffer */
static enum iso7816_3_card_state add_tpdu_byte(struct card_handle *ch, uint8_t byte)
static void add_tpdu_byte(struct card_handle *ch, uint8_t byte)
{
struct req_ctx *rctx;
struct cardemu_usb_msg_rx_data *rd;
@@ -415,11 +415,10 @@ static enum iso7816_3_card_state add_tpdu_byte(struct card_handle *ch, uint8_t b
if (rctx->tot_len >= sizeof(*rd) + num_data_bytes) {
rd->flags |= CEMU_DATA_F_FINAL;
flush_rx_buffer(ch);
return ISO_S_WAIT_TPDU;
/* We need to transmit the SW now, */
set_tpdu_state(ch, TPDU_S_WAIT_TX);
} else if (rctx->tot_len >= rctx->size)
flush_rx_buffer(ch);
return ISO_S_IN_TPDU;
}
static void set_tpdu_state(struct card_handle *ch, enum tpdu_state new_ts)
@@ -530,7 +529,8 @@ process_byte_tpdu(struct card_handle *ch, uint8_t byte)
send_tpdu_header(ch);
break;
case TPDU_S_WAIT_RX:
return add_tpdu_byte(ch, byte);
add_tpdu_byte(ch, byte);
break;
default:
TRACE_DEBUG("process_byte_tpdu() in invalid state %u\n",
ch->tpdu.state);