Update QuecManager to 0.0.9

- Added MTU settings
- Added no SIM detected message

Co-Authored-By: Russel Yasol <73575327+dr-dolomite@users.noreply.github.com>

ipk-source/sdxpinn-quecmanager-beta/root/www/cgi-bin/advance/mtu.sh

@@ -0,0 +1,90 @@
+#!/bin/sh
+echo "Content-type: application/json"
+echo ""
+mtu_firewall_file="/etc/firewall.user.mtu"
+network_interface="rmnet_data0"
+lan_utils_script="/etc/data/lanUtils.sh"
+
+get_current_mtu() {
+    ip link show "$network_interface" | grep -o "mtu [0-9]*" | cut -d' ' -f2
+}
+
+update_lanutils_mtu_config() {
+    local action="$1"
+    if [ "$action" = "add" ]; then
+        # Add the MTU firewall file line if not already present
+        if ! grep -q "local mtu_firewall_file=/etc/firewall.user.mtu" "$lan_utils_script"; then
+            sed -i '/local ttl_firewall_file=\/etc\/firewall.user.ttl/a local mtu_firewall_file=/etc/firewall.user.mtu' "$lan_utils_script"
+        fi
+    elif [ "$action" = "remove" ]; then
+        # Remove the MTU firewall file line if present
+        sed -i '/local mtu_firewall_file=\/etc\/firewall.user.mtu/d' "$lan_utils_script"
+    fi
+}
+
+case "$REQUEST_METHOD" in
+    GET)
+        # Fetch current MTU
+        current_mtu=$(get_current_mtu)
+        current_mtu=${current_mtu:-1500}
+        
+        # Check if custom MTU is configured
+        if [ -f "$mtu_firewall_file" ]; then
+            echo "{\"isEnabled\": true, \"currentValue\": $current_mtu}"
+        else
+            echo "{\"isEnabled\": false, \"currentValue\": $current_mtu}"
+        fi
+        ;;
+    
+    POST)
+        read -r post_data
+        mtu_value=$(echo "$post_data" | sed 's/mtu=//')
+       
+        # Check for disable functionality
+        if [ "$mtu_value" = "disable" ]; then
+            # Remove the MTU configuration file
+            rm -f "$mtu_firewall_file"
+            
+            # Remove the MTU configuration line from lanUtils.sh
+            update_lanutils_mtu_config "remove"
+            
+            # Get the default MTU
+            default_mtu=$(get_current_mtu)
+            default_mtu=${default_mtu:-1500}
+            
+            echo "{\"success\": true, \"message\": \"MTU configuration disabled\", \"currentValue\": $default_mtu}"
+            exit 0
+        fi
+        
+        # Validate MTU input
+        if ! [[ "$mtu_value" =~ ^[0-9]+$ ]]; then
+            echo "{\"success\": false, \"error\": \"Invalid MTU value\"}"
+            exit 1
+        fi
+        
+        # Create firewall MTU configuration file with individual interface commands
+        > "$mtu_firewall_file" # Clear the file
+        for iface in $(ls /sys/class/net | grep '^rmnet_data'); do
+            echo "ip link set $iface mtu $mtu_value" >> "$mtu_firewall_file"
+        done
+        
+        # Immediately apply MTU change
+        for iface in $(ls /sys/class/net | grep '^rmnet_data'); do
+            ip link set "$iface" mtu "$mtu_value"
+        done
+        
+        # Add the MTU configuration line to lanUtils.sh
+        update_lanutils_mtu_config "add"
+        
+        # Run lanUtils.sh to update network configuration
+        if [ -f "$lan_utils_script" ]; then
+            . "$lan_utils_script"
+        fi
+        
+        echo "{\"success\": true, \"message\": \"MTU configuration updated to $mtu_value\", \"currentValue\": $mtu_value}"
+        ;;
+    
+    *)
+        echo "{\"success\": false, \"error\": \"Invalid request method\"}"
+        ;;
+esac