- CLA decode (TS 102 221 §10.1.1/§10.3): standard channels 0-3 from b2-b1
and the extended channels 4-19 from b4-b1. The old further-format rule
read only b2-b1 (channel 8 read as 6, 19 as 7) and the ETSI '11x0 xxxx'
coding (0xC0-0xEF) was not handled at all; the class ranges now follow the
specs (0x80-0x8F UICC, 0xA0-0xAF SIM, 0xC0-0xEF ETSI extended, 0x20-0x3F
reserved, 0xFF invalid) and SM/chain are decoded per family — the SM
extraction and the chaining bit (b5, not b6) were off by one bit
- per-channel state: database._decode_rows/_replay_context use the shared
cla_channel() helper — before, CLA & 0x03 with no +4, so a channel-5
SELECT clobbered channel 1's selection and a channel-8 one channel 0's
(the local traces already open channels: 29 MANAGE CHANNEL opens, 1-2)
- COMPRION T=0 import: the synthesized GET RESPONSE keeps the channel —
a plain CLA for 0-3 (as real terminals do) and 01x0 for 4-19
- ATR historical bytes: the UICC's COMPACT-TLV objects (TS 102 221 §6.3.1)
with card service data, the card capabilities (ISO 7816-4 §8.1.1.2.7
Table 88: assignment methods and max logical channels — the workspace
cards announce 4 and "8 or more") and the status indicator ('00' trailing
bytes / the '8Y' TLV); a truncated ATR no longer raises
- MANAGE CHANNEL success replies decode the assigned channel byte
- capture/import: a 'tpdu' packet that is not APDU-shaped (shorter than the
header, CLA FF, ISO-reserved class) is skipped and counted, so a
character-level or mis-sampled stream no longer pollutes the decode
(the local DB's outlier sessions are exactly that)
- tests: CLA table vectors, per-channel state isolation on channels 8/12,
COMPRION GR channels, filetrack extended channels, ATR compact-TLV and
card-capability cases, the capture skip counter, the PWA rows; 527 Python
+ 47 Node tests
- README/README_RUS document the extended channels, card capabilities and
the skip counter; PWA_VERSION/pyproject/version.py 2.6.0, SW v72
- move the analysis server out of simtrace2_pysniff into simtrace_analyser;
simtrace2_pysniff stays as the simtrace2-sniff replacement capture utility
- new server CLI: simtrace-analyser-server; python -m simtrace_analyser
(simtrace2-pysniff-server and python -m simtrace2_pysniff.server dropped)
- simtrace2_pysniff lazy-imports hardware symbols, so the server no longer
pulls PyUSB at startup; the GSMTAP/PCAP codecs work without libusb
- version 2.0.0 everywhere (was 1.22.21); PWA SW cache simtrace-analyser-v54
- frontend: server name, clone URL and i18n strings updated; vendored-parser
reference otaman -> SIMple
- README/README_RUS reworked product-first (analyser first, utility second)
- DB dir ~/.simtrace-analyser, /api status payload and hosted PWA unchanged
- capture.py: map GSMTAP PPS request/response (0x02/0x03) to 'pps',
matching the pcap-import mapping (was decoded as TPDU live)
- decode.py: parse the optional RST CLK extension (sigrok v1.9.0+,
payload flag bit 0); ATR gains clk_hz/data_rate/etu_us derived from
TA1 Fi/Di (data_rate = clk_hz × D / F)
- database.py: CLK state is consumed by the next ATR (no stale rate
for an ATR without preceding RST); a late-arriving RST measurement
is backfilled onto the ATR it belongs to; replay context carries
the CLK across pagination/live polling
- PWA: ATR detail shows CLK/Data rate/ETU; RST event detail shows CLK
- tests: PPS mapping, CLK parse with/without flag, rate math,
DB consume + backfill round-trips
- README/RUS updated
- Bump 1.22.18, SW cache v49->v50
The GSMTAP capture thread died silently whenever a single non-SIM or
truncated GSMTAP datagram arrived (read_packet() raises ValueError,
uncaught in the loop, killing the daemon thread while UDP kept
flowing) — matching the "stops listening after a sniffer restart"
symptom.
Fixes:
- GsmtapListener.iter_messages() now catches ValueError/struct.error
from read_packet(), drops the offending datagram (counted via a new
`dropped` counter) and keeps listening.
- CaptureManager._capture_loop() guards the DB insert so a transient
error can't kill the thread; a top-level guard logs
"ERROR: capture thread stopped on error …" + traceback and clears
the session so /api/status no longer reports a stuck "active".
- Server now logs capture liveness to stderr: "Capture started", a
periodic "Capture alive: session=N messages=M bytes=B dropped=D"
heartbeat (default every 60 s, configurable via log_interval), and
"Capture stopped" (or "empty session discarded").
Tests: +5 (listener survives non-SIM/short packet, capture loop
survives insert error, logs stop-on-error, heartbeat+stop log).
Stays on 1.22.0 (backend-only).
Support the sigrok-iso7816-stream decoder (FX2 logic-analyzer passive
SIM sniffer, github.com/anttro/sigrok_iso7816_stream) which streams
GSMTAP-SIM on UDP 4729 and adds two custom sub-types for line events.
- gsmtap.py: GSMTAP_SIM_RST_EVENT (0x10) / GSMTAP_SIM_VCC_EVENT (0x11).
- capture.py: gsmtap_msg_type() maps 0x10→'rst', 0x11→'vcc' (shared by
the listener and tests); pcap.py _SUB_TYPE_NAMES gains the same
entries so PCAP re-imports of these captures preserve the events.
- decode.py: decode_line_event() decodes [direction, level, reserved]
into reset asserted/de-asserted or power applied/removed + level;
routed through decode_sniff_msg.
- database.py: reset-assert and power-removal invalidate the per-channel
file selection (card-level transition); de-assert / power-on are
markers only.
- frontend: RST/VCC labels (RESET ASSERTED / VCC OFF, …), a detail-view
branch (Event + Level + raw), and list styling (.apdu-type.rst/.vcc).
README notes the custom sub-type compatibility. Tests: +8 (line-event
vectors, sniff routing, subtype + PCAP round-trip mappings) — 359
total. Version 1.21.0, SW cache simtrace-analyser-v31.
Frontend:
- trace empty-state now shows connection status + capture mode (boxed,
colored) in the center, updated live via checkConnection
- capture-mode uses amber warning style (gsmtap/disabled), green for direct
- stopCapture clears currentSessionId
Server:
- gsmtap read_packet catches OSError on socket close (no more EBADF
traceback on stop)
- stop_session joins the loop and discards a session with zero messages;
/api/capture/stop reports discarded
- startup prints server version
Tests: 122 (gsmtap close, empty/non-empty capture lifecycle).
catarrh