diff options
Diffstat (limited to 'firmware/src/simtrace')
| -rw-r--r-- | firmware/src/simtrace/iso7816_uart.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/firmware/src/simtrace/iso7816_uart.c b/firmware/src/simtrace/iso7816_uart.c index f30977a..6186e5e 100644 --- a/firmware/src/simtrace/iso7816_uart.c +++ b/firmware/src/simtrace/iso7816_uart.c @@ -96,6 +96,8 @@ struct iso7816_3_handle { u_int8_t atr_last_td; u_int8_t atr[64]; + u_int16_t prot_t_supported; + enum pts_state pts_state; u_int8_t pts_req[6]; u_int8_t pts_resp[6]; @@ -190,6 +192,7 @@ static void set_atr_state(struct iso7816_3_handle *ih, enum atr_state new_atrs) ih->atr_idx = 0; ih->atr_hist_len = 0; ih->atr_last_td = 0; + ih->prot_t_supported = (1 << 0); memset(ih->atr, 0, sizeof(ih->atr)); } else if (ih->atr_state == new_atrs) return; @@ -253,6 +256,7 @@ static enum atr_state next_intb_state(struct iso7816_3_handle *ih, u_int8_t ch) { switch (ih->atr_state) { case ATR_S_WAIT_TD: + ih->prot_t_supported |= (1 << (ch & 0xf)); case ATR_S_WAIT_T0: ih->atr_last_td = ch; goto from_td; @@ -320,8 +324,16 @@ process_byte_atr(struct iso7816_3_handle *ih, u_int8_t byte) case ATR_S_WAIT_HIST: ih->atr_hist_len--; /* after all historical bytes are recieved, go to TCK */ - if (ih->atr_hist_len == 0) + if (ih->atr_hist_len == 0) { + if (ih->prot_t_supported == 0x01) { + /* If only T=0 supported, there is no + * TCK but we immediately transition to + * APDUs */ + set_atr_state(ih, ATR_S_DONE); + return ISO7816_S_WAIT_APDU; + } set_atr_state(ih, ATR_S_WAIT_TCK); + } break; case ATR_S_WAIT_TCK: /* FIXME: process and verify the TCK */ |