The decoder could end decode() early on an idle/busy live line; the frontend
symptom was a flood of "sr_session_stop: session was NULL" after the session
stopped. Harden the EOF detection and stop the capture from dropping.
pd.py:
- _at_eof(): a step that consumes only queued bytes (_replay / peeked_byte,
e.g. the invalid-INS re-frame) no longer counts as end-of-capture; bounded
to 64 consecutive no-advance steps.
- _stall_check(track=False): the idle-LEVEL wait in wait_data_falling returns
immediately at the same sample on an idle line -- not EOF. Only "pins is
None" ends the wait there; sample-stall detection is kept for the edge wait.
- resync_idle(): guard wait()==None (was an unguarded pins[...] TypeError at
stream end).
Effect: samsung_phone_sample.sr had halted at ~21.9M/320M samples with 1 APDU;
it now decodes through ~293M to a true end (939 APDUs, CHKSUM 176). The 6
CONCAT packets are real mis-framed STK bursts now reachable (known Samsung
de-concatenation family). All other traces unchanged.
start.sh:
- Auto-restart is now the default (--no-loop disables) so an intermittent
FX2 USB stop reconnects instead of ending the session.
- Per-session pcap suffix (FILE.N.ext) so a restart never overwrites the
previous capture.
- Filter the repetitive "sr_session_stop: session was NULL" teardown line
from stderr (real decoder errors still pass).
Validation: test_8 56/0/OK, test_7 65/0/OK, xiaomi_phone 640, xiaomi_cold
473, 4gmodem 327, A55 407/395, S21p 399/375, target S21p 369; 0 CONCAT;
65/65 unit tests (10 new). VERSION -> 1.7.0.
Add hunt-side live ETU recovery so a card already at a non-default F/D
(e.g. Samsung F=512/D=32 -> 16 CLK/bit) can be decoded without a 372-rate
ATR, and bound the all-0xFF hunt so an idle/unsyncable line can never loop
forever.
- _recover_etu_in_hunt(): measure the live ETU from DATA edges while still
in FIND START, then re-derive clock_skip; reuses _confirm_etu validation.
- _atr_hunt_failure_action(): pure recover/retry/resume_data decision, with
ATR_HUNT_ETU_ATTEMPTS=3 / ATR_HUNT_IDLE_RESETS=3 / ATR_HUNT_FAIL_LIMIT=12.
- Persistent counters reset only on a successful ATR parse (not RST re-arm),
so RST-cycling phones cannot starve the escape.
- 8 new unit tests (55 total).
Validated on the full trace suite (test_8 56/0/OK, test_7 65/0/OK, xiaomi
640, xiaomi_cold 473, 4gmodem 327, A55 407/395, S21p 399/375, target S21p
369; 0 CONCAT, RESULT: OK) with no regressions.
Трошин Антон Валерьевич