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fix(network): Call discover_lan() when DHCP fails (v1.7.0.4)

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- Fixed bug where discover_lan() function existed but was never called
- Now probes common gateways (192.168.1.1, 192.168.0.1, etc.) before link-local
- Only falls back to link-local (169.254.1.1) if gateway discovery also fails

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit is contained in:
CyberMind-FR 2026-04-14 17:34:51 +02:00
parent b6960559b1
commit f838a5b5bb
1 changed files with 11 additions and 4 deletions
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15
image/build-live-usb.sh
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@ -800,13 +800,20 @@ for iface in /sys/class/net/*; do
fi
done
# Only assign link-local to first interface without IP if NO interface got a real IP
# This preserves dummy0's 192.168.255.1 for local access
# If no interface got DHCP, try gateway discovery (smart auto-IP)
if [[ "$GOT_IP" -eq 0 ]]; then
FIRST_IFACE=$(ls -1 /sys/class/net/ | grep -E '^e' | head -1)
if [[ -n "$FIRST_IFACE" ]]; then
logger -t secubox-net "No DHCP anywhere, assigning link-local to $FIRST_IFACE"
ip addr add 169.254.1.1/16 dev "$FIRST_IFACE" 2>/dev/null || true
logger -t secubox-net "No DHCP anywhere, trying gateway discovery on $FIRST_IFACE..."
# Try to discover LAN by probing common gateways
if discover_lan "$FIRST_IFACE"; then
logger -t secubox-net "Gateway discovery successful on $FIRST_IFACE"
GOT_IP=1
else
logger -t secubox-net "Gateway discovery failed, assigning link-local to $FIRST_IFACE"
ip addr add 169.254.1.1/16 dev "$FIRST_IFACE" 2>/dev/null || true
fi
fi
fi