29196f7f9b
- Added MTU settings - Added no SIM detected message Co-Authored-By: Russel Yasol <73575327+dr-dolomite@users.noreply.github.com>
90 lines
3.1 KiB
Bash
Executable File
90 lines
3.1 KiB
Bash
Executable File
#!/bin/sh
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echo "Content-type: application/json"
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echo ""
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mtu_firewall_file="/etc/firewall.user.mtu"
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network_interface="rmnet_data0"
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lan_utils_script="/etc/data/lanUtils.sh"
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get_current_mtu() {
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ip link show "$network_interface" | grep -o "mtu [0-9]*" | cut -d' ' -f2
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}
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update_lanutils_mtu_config() {
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local action="$1"
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if [ "$action" = "add" ]; then
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# Add the MTU firewall file line if not already present
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if ! grep -q "local mtu_firewall_file=/etc/firewall.user.mtu" "$lan_utils_script"; then
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sed -i '/local ttl_firewall_file=\/etc\/firewall.user.ttl/a local mtu_firewall_file=/etc/firewall.user.mtu' "$lan_utils_script"
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fi
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elif [ "$action" = "remove" ]; then
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# Remove the MTU firewall file line if present
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sed -i '/local mtu_firewall_file=\/etc\/firewall.user.mtu/d' "$lan_utils_script"
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fi
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}
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case "$REQUEST_METHOD" in
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GET)
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# Fetch current MTU
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current_mtu=$(get_current_mtu)
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current_mtu=${current_mtu:-1500}
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# Check if custom MTU is configured
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if [ -f "$mtu_firewall_file" ]; then
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echo "{\"isEnabled\": true, \"currentValue\": $current_mtu}"
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else
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echo "{\"isEnabled\": false, \"currentValue\": $current_mtu}"
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fi
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;;
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POST)
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read -r post_data
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mtu_value=$(echo "$post_data" | sed 's/mtu=//')
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# Check for disable functionality
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if [ "$mtu_value" = "disable" ]; then
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# Remove the MTU configuration file
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rm -f "$mtu_firewall_file"
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# Remove the MTU configuration line from lanUtils.sh
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update_lanutils_mtu_config "remove"
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# Get the default MTU
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default_mtu=$(get_current_mtu)
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default_mtu=${default_mtu:-1500}
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echo "{\"success\": true, \"message\": \"MTU configuration disabled\", \"currentValue\": $default_mtu}"
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exit 0
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fi
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# Validate MTU input
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if ! [[ "$mtu_value" =~ ^[0-9]+$ ]]; then
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echo "{\"success\": false, \"error\": \"Invalid MTU value\"}"
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exit 1
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fi
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# Create firewall MTU configuration file with individual interface commands
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> "$mtu_firewall_file" # Clear the file
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for iface in $(ls /sys/class/net | grep '^rmnet_data'); do
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echo "ip link set $iface mtu $mtu_value" >> "$mtu_firewall_file"
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done
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# Immediately apply MTU change
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for iface in $(ls /sys/class/net | grep '^rmnet_data'); do
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ip link set "$iface" mtu "$mtu_value"
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done
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# Add the MTU configuration line to lanUtils.sh
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update_lanutils_mtu_config "add"
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# Run lanUtils.sh to update network configuration
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if [ -f "$lan_utils_script" ]; then
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. "$lan_utils_script"
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fi
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echo "{\"success\": true, \"message\": \"MTU configuration updated to $mtu_value\", \"currentValue\": $mtu_value}"
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;;
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*)
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echo "{\"success\": false, \"error\": \"Invalid request method\"}"
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;;
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esac |