ipad_screen_mirror_server

gistfile1.txt

#! /usr/bin/env nix-shell
#! nix-shell --quiet -p uxplay -i bash

set -ueo pipefail

## Clear any existing "DROP ME" rules
## ref: https://stackoverflow.com/a/63855690/12393422
while sudo iptables -L -n --line-number | grep "DROP ME" > /dev/null; do
  sudo iptables -D INPUT $(sudo iptables -L -n --line-number | grep "DROP ME" | head -1 | awk '{print $1}');
done


LOCAL_CIDR=${1:-"192.168.0.0/16"}

open-port-tcp() {
  local port=$1
  echo "Opening tcp port $port from $LOCAL_CIDR ..."
  sudo iptables \
       -I INPUT \
       -p tcp \
       -s $LOCAL_CIDR \
       --dport $port \
       -j ACCEPT \
       -m comment --comment "DROP ME"
}

close-port-tcp() {
  local port=${1:-0}
  echo "Closing tcp port $port from $LOCAL_CIDR ..."
  sudo iptables \
       -D INPUT \
       -p tcp \
       -s $LOCAL_CIDR \
       --dport $port \
       -j ACCEPT \
       -m comment --comment "DROP ME"
}

open-port-udp() {
  local port=$1
  echo "Opening udp port $port from $LOCAL_CIDR ..."
  sudo iptables \
       -I INPUT \
       -p udp \
       -s $LOCAL_CIDR \
       --dport $port \
       -j ACCEPT \
       -m comment --comment "DROP ME"
}

close-port-udp() {
  local port=${1:-0}
  echo "Closing udp port $port from $LOCAL_CIDR ..."
  sudo iptables \
       -D INPUT \
       -p udp \
       -s $LOCAL_CIDR \
       --dport $port \
       -j ACCEPT \
       -m comment --comment "DROP ME"
}

open-port-tcp 7100
open-port-tcp 7000
open-port-tcp 7001
open-port-udp 6000
open-port-udp 6001
open-port-udp 7011

# Ensure port closes if error occurs.
trap "close-port-tcp 7100 && \
      close-port-tcp 7000 && \
      close-port-tcp 7001 && \
      close-port-udp 6000 && \
      close-port-udp 6001 && \
      close-port-udp 7011
      " EXIT

uxplay -p