Enrich per-event RST/VCC labels (ATR STARTS / power-up) + decode server-side

- decode_line_event adds human label: RST de-asserted->ATR STARTS,
  VCC applied->VCC ON (power-up); keep canonical event string
- Enable rst/vcc in DB decode dispatch so PWA receives decoded
  (fixes bare RESET/VCC fallback and a latent showDetail crash)
- PWA line_event_label/showDetail render decoded.label
- Bump 1.22.1, SW cache v32->v33; +1 test

frontend/index.html

@@ -416,8 +416,8 @@ const INS_NAMES = {
 // ──────────────────── UI Helpers ────────────────────
 function line_event_label(msg) {
     const d = msg.decoded;
-    if (msg.type === 'rst') return d && d.event ? 'RESET ' + (d.event === 'reset asserted' ? 'ASSERTED' : 'DE-ASSERTED') : 'RESET';
+    if (msg.type === 'rst') return d && d.label ? d.label : 'RESET';
-    if (msg.type === 'vcc') return d && d.event ? 'VCC ' + (d.event === 'power applied' ? 'ON' : 'OFF') : 'VCC';
+    if (msg.type === 'vcc') return d && d.label ? d.label : 'VCC';
     return null;
 }
 
@@ -1518,7 +1518,7 @@ function showDetail(msg, entry) {
     }
 
     if (decoded.type === 'rst' || decoded.type === 'vcc') {
-        const evName = decoded.event || (decoded.type === 'rst' ? 'reset event' : 'power event');
+        const evName = decoded.label || decoded.event || (decoded.type === 'rst' ? 'reset event' : 'power event');
         d.innerHTML = `<div class="detail-header"><strong>${ins_label(msg)}</strong><span style="color:var(--text-muted)">${detail_time_html(msg)}</span></div>
             <div class="detail-body">
                 <table>
@@ -2511,7 +2511,7 @@ function onFilterChange() {
 }
 
 // ──────────────────── Versioning ────────────────────
-const PWA_VERSION = '1.22.0';
+const PWA_VERSION = '1.22.1';
 const MIN_SERVER_VERSION = '1.0.0';
 
 function parseVersion(v) {

frontend/sw.js

@@ -1,4 +1,4 @@
-const CACHE = 'simtrace-analyser-v32';
+const CACHE = 'simtrace-analyser-v33';
 
 const PRECACHE = [
     'index.html',

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.backends._legacy:_Backend"
 
 [project]
 name = "simtrace2-pysniff"
-version = "1.22.0"
+version = "1.22.1"
 description = "Python-based sniffing tool for SIMtrace2 hardware (SIM card communication sniffer)"
 readme = {file = "README.md", content-type = "text/markdown"}
 license = {text = "GPL-2.0-or-later"}

simtrace2_pysniff/__init__.py

@@ -6,7 +6,7 @@ from .gsmtap import GsmtapSender, GsmtapReceiver
 from .pcap import PcapWriter
 from .dump import FileDumper, format_message
 
-__version__ = '1.22.0'
+__version__ = '1.22.1'
 __all__ = [
     'SniffSession',
     'DeviceDisconnected',

simtrace2_pysniff/server/database.py

@@ -230,7 +230,7 @@ class Database:
             'data': data_blob.hex(),
             'flags': flags,
         }
-        if row[3] in ('tpdu', 'change', 'fidi', 'atr', 'pps'):
+        if row[3] in ('tpdu', 'change', 'fidi', 'atr', 'pps', 'rst', 'vcc'):
             try:
                 from .decode import decode_sniff_msg
                 msg['decoded'] = decode_sniff_msg(data_blob, row[3], flags, prev=prev)

simtrace2_pysniff/server/decode.py

@@ -4018,14 +4018,28 @@ def decode_line_event(raw_data, kind):
     direction — RST: 1 = asserted (high→low), 0 = de-asserted (low→high);
     VCC: 1 = power applied (low→high), 0 = removed (high→low).
     level — resulting line level: 0 = low, 1 = high.
+
+    ``event`` is the canonical value; ``label`` is the human-facing
+    summary (e.g. RST de-asserted → "ATR STARTS", VCC applied →
+    "VCC ON (power-up)").
     """
     result = {'type': kind}
     if raw_data and len(raw_data) >= 2:
         direction, level = raw_data[0], raw_data[1]
         if kind == 'rst':
-            result['event'] = 'reset asserted' if direction else 'reset de-asserted'
+            if direction:
+                result['event'] = 'reset asserted'
+                result['label'] = 'RESET ASSERTED'
             else:
-            result['event'] = 'power applied' if direction else 'power removed'
+                result['event'] = 'reset de-asserted'
+                result['label'] = 'ATR STARTS'
+        else:
+            if direction:
+                result['event'] = 'power applied'
+                result['label'] = 'VCC ON (power-up)'
+            else:
+                result['event'] = 'power removed'
+                result['label'] = 'VCC OFF (power-down)'
         result['level'] = 'high' if level else 'low'
         result['raw'] = raw_data.hex().upper()
     return result

tests/test_decode.py

@@ -2357,23 +2357,41 @@ class TestLineEvents(unittest.TestCase):
         r = self._dec('rst', '010000')
         self.assertEqual(r['type'], 'rst')
         self.assertEqual(r['event'], 'reset asserted')
+        self.assertEqual(r['label'], 'RESET ASSERTED')
         self.assertEqual(r['level'], 'low')
 
     def test_rst_deasserted(self):
         r = self._dec('rst', '000100')
         self.assertEqual(r['event'], 'reset de-asserted')
+        self.assertEqual(r['label'], 'ATR STARTS')
         self.assertEqual(r['level'], 'high')
 
     def test_vcc_on(self):
         r = self._dec('vcc', '010100')
         self.assertEqual(r['event'], 'power applied')
+        self.assertEqual(r['label'], 'VCC ON (power-up)')
         self.assertEqual(r['level'], 'high')
 
     def test_vcc_off(self):
         r = self._dec('vcc', '000000')
         self.assertEqual(r['event'], 'power removed')
+        self.assertEqual(r['label'], 'VCC OFF (power-down)')
         self.assertEqual(r['level'], 'low')
 
+    def test_db_roundtrip_label(self):
+        # rst/vcc must be decoded server-side (database.py dispatch) so the
+        # PWA receives decoded.label/event, not just the raw bytes.
+        import tempfile
+        from simtrace2_pysniff.server.database import Database
+        with tempfile.NamedTemporaryFile(suffix='.db') as tmp:
+            db = Database(tmp.name)
+            sid = db.create_session('capture')
+            db.insert_message(sid, 0.1, 'rst', bytes.fromhex('000100'), 0)
+            db.insert_message(sid, 0.2, 'vcc', bytes.fromhex('010100'), 0)
+            msgs = db.get_messages(sid)
+            self.assertEqual(msgs[0]['decoded']['label'], 'ATR STARTS')
+            self.assertEqual(msgs[1]['decoded']['label'], 'VCC ON (power-up)')
+
     def test_sniff_routing(self):
         from simtrace2_pysniff.server.decode import decode_sniff_msg
         self.assertEqual(decode_sniff_msg(b'\x01\x00\x00', 'rst')['type'], 'rst')

tests/test_pcap_import.py

@@ -224,7 +224,7 @@ class TestImportEndpoint(unittest.TestCase):
 class TestVersion(unittest.TestCase):
     def test_package_version(self):
         from simtrace2_pysniff import __version__
-        self.assertEqual(__version__, '1.22.0')
+        self.assertEqual(__version__, '1.22.1')
 
     def test_status_includes_version(self):
         import os