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Fix grgsm_scanner crash on unsupported band names (GSM800, EGSM900_EXT)

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Add explicit band name mapping from internal names to grgsm_scanner's
accepted -b values (GSM900, GSM850, DCS1800, PCS1900). Bands without
a valid grgsm_scanner equivalent (GSM800, EGSM900_EXT) are skipped
with a log message instead of crashing the scanner. Remove GSM800
from the dashboard band selector since it can't be scanned.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Smittix
2026-02-08 20:39:12 +00:00
parent 90e88fc469
commit 1a5b076a8d
2 changed files with 25 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
routes/gsm_spy.py
View File

@@ -614,11 +614,31 @@ def start_scanner():
cmd.extend(['--args', f'rtl={device_index}'])
# Add selected band arguments
# Map EGSM900 to GSM900 since that's what grgsm_scanner expects
# Map internal band names to grgsm_scanner -b values
# grgsm_scanner accepts: GSM900, GSM850, DCS1800, PCS1900, GSM450, GSM480, GSM-R
GRGSM_BAND_MAP = {
'EGSM900': 'GSM900',
'EGSM900_EXT': None, # Covered by GSM900 scan
'GSM850': 'GSM850',
'GSM800': None, # Not a standard GSM band for grgsm_scanner
'DCS1800': 'DCS1800',
'PCS1900': 'PCS1900',
}
bands_added = set()
for band_name in selected_bands:
# Normalize band name (EGSM900 -> GSM900, remove EGSM prefix)
normalized_band = band_name.replace('EGSM', 'GSM')
cmd.extend(['-b', normalized_band])
grgsm_band = GRGSM_BAND_MAP.get(band_name, band_name)
if grgsm_band is None:
logger.info(f"Skipping band {band_name} (not supported by grgsm_scanner)")
continue
if grgsm_band not in bands_added:
cmd.extend(['-b', grgsm_band])
bands_added.add(grgsm_band)
if not bands_added:
from app import release_sdr_device
release_sdr_device(device_index)
return jsonify({'error': f'No scannable bands selected. '
f'GSM800 and EGSM900_EXT are not supported by grgsm_scanner.'}), 400
logger.info(f"Starting GSM scanner: {' '.join(cmd)}")

3
templates/gsm_spy_dashboard.html
View File

@@ -1826,8 +1826,7 @@
'Europe': [
{ name: 'EGSM900', label: 'EGSM900 (925-960 MHz)', freq: '925-960 MHz', common: true, recommended: true },
{ name: 'DCS1800', label: 'DCS1800 (1805-1880 MHz)', freq: '1805-1880 MHz', common: true, recommended: false },
{ name: 'GSM850', label: 'GSM850 (869-894 MHz)', freq: '869-894 MHz', common: false, recommended: false },
{ name: 'GSM800', label: 'GSM800 (832-862 MHz)', freq: '832-862 MHz', common: false, recommended: false }
{ name: 'GSM850', label: 'GSM850 (869-894 MHz)', freq: '869-894 MHz', common: false, recommended: false }
],
'Americas': [
{ name: 'GSM850', label: 'GSM850 (869-894 MHz)', freq: '869-894 MHz', common: true, recommended: true },