Improved support for subnet colisions, and attempts to rejoin network.

dist/scripts/S01iptables

@@ -6,8 +6,11 @@ case "$1" in
         iptables -A OUTPUT -o lo -j ACCEPT
         iptables -A OUTPUT -o bridge0 -j ACCEPT
         iptables -A OUTPUT -m state --state ESTABLISHED,RELATED -j ACCEPT
+        iptables -A OUTPUT -p udp --dport 67:68 -j ACCEPT
+        iptables -A OUTPUT -p udp --dport 53 -j ACCEPT
+        iptables -A OUTPUT -p tcp --dport 53 -j ACCEPT
         iptables -A OUTPUT -j DROP
-        echo 0 > /proc/sys/net/bridge/bridge-nf-call-iptables
+        echo 0 > /proc/sys/net/bridge/bridge-nf-call-iptables 2>/dev/null
     fi
     ;;
 esac

dist/scripts/udhcpc-hook.sh

@@ -0,0 +1,21 @@
+#!/bin/sh
+# udhcpc hook script for rayhunter WiFi client mode.
+# Saves DHCP lease info (gateway, DNS) so the daemon can read the real
+# gateway even when subnets collide. Routing is handled by the daemon.
+#
+# Deployed to /data/rayhunter/udhcpc-hook.sh by the installer.
+# Any installer that adds wifi-client support must also deploy this script.
+LEASE_FILE="/data/rayhunter/dhcp_lease"
+
+case "$1" in
+    bound|renew)
+        ip addr flush dev "$interface"
+        ip addr add "$ip/$mask" dev "$interface"
+        echo "gateway=$router" > "$LEASE_FILE"
+        echo "dns=$dns" >> "$LEASE_FILE"
+        ;;
+    deconfig)
+        ip addr flush dev "$interface"
+        rm -f "$LEASE_FILE"
+        ;;
+esac