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Update iptables.sh

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MarkusMcNugen 2018-04-26 02:00:05 -04:00 committed by GitHub
parent f142f53344
commit 671e6d8000
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1 changed files with 73 additions and 39 deletions
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112
qbittorrent/iptables.sh
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@ -11,14 +11,18 @@ while : ; do
fi
done
echo "[info] WebUI port defined as ${WEBUI_PORT}" | ts '%Y-%m-%d %H:%M:%.S'
# ip route
###
DEBUG=false
echo "[info] Adding ${LAN_NETWORK} as route via docker eth0"
ip route add "${LAN_NETWORK}" via "${DEFAULT_GATEWAY}" dev eth0
# split comma seperated string into list from LAN_NETWORK env variable
IFS=',' read -ra lan_network_list <<< "${LAN_NETWORK}"
# split comma seperated string into list from LAN_NETWORKS env variable
IFS=',' read -ra lan_network_list <<< "${LAN_NETWORKS}"
lancount=0
# process lan networks in the list
@ -29,9 +33,17 @@ for lan_network_item in "${lan_network_list[@]}"; do
# strip whitespace from start and end of lan_network_item
lan_network_item=$(echo "${lan_network_item}" | sed -e 's~^[ \t]*~~;s~[ \t]*$~~')
echo "[info] Adding ${lan_network_item} as route via docker eth0"
ip route add "${lan_network_item}" via "${DEFAULT_GATEWAY}" dev eth0
# Get network interface name for corresponding networks
for interface in $(ifconfig | cut -d ' ' -f1| tr ':' '\n' | awk NF)
do
int_ip=$(ifconfig "${interface}" | grep -o "inet [0-9]*\.[0-9]*\.[0-9]*\.[0-9]*" | grep -o "[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*")
int_mask=$(ifconfig "${interface}" | grep -o "netmask [0-9]*\.[0-9]*\.[0-9]*\.[0-9]*" | grep -o "[0-9]*\.[0-9]*\.[0-9]*\.[0-9]*")
int_cidr=$(ipcalc "${int_ip}" "${int_mask}" | grep -P -o -m 1 "(?<=Network:)\s+[^\s]+" | sed -e 's~^[ \t]*~~;s~[ \t]*$~~')
if [[ $int_cidr == $lan_network_item]]; then
$lan_network_devices[$lancount]=$interface
fi
done
lancount=$((lancount+1))
done
@ -97,36 +109,44 @@ ip6tables -P INPUT DROP 1>&- 2>&-
# accept input to tunnel adapter
iptables -A INPUT -i "${VPN_DEVICE_TYPE}" -j ACCEPT
# accept input to/from docker containers (172.x range is internal dhcp)
# accept input to/from LANs (172.x range is internal dhcp)
for lan_network_item in "${lan_network_list[@]}"; do
iptables -A INPUT -s "${lan_network_item}" -d "${lan_network_item}" -j ACCEPT
done
iptables -A INPUT -s "${docker_network_cidr}" -d "${docker_network_cidr}" -j ACCEPT
# accept input to vpn gateway
iptables -A INPUT -i eth0 -p $VPN_PROTOCOL --sport $VPN_PORT -j ACCEPT
# accept input to qbittorrent webui port
if [ -z "${WEBUI_PORT}" ]; then
iptables -A INPUT -i eth0 -p tcp --dport 8080 -j ACCEPT
iptables -A INPUT -i eth0 -p tcp --sport 8080 -j ACCEPT
else
iptables -A INPUT -i eth0 -p tcp --dport ${WEBUI_PORT} -j ACCEPT
iptables -A INPUT -i eth0 -p tcp --sport ${WEBUI_PORT} -j ACCEPT
fi
# process lan networks in the list
for lan_network_item in "${lan_network_list[@]}"; do
# strip whitespace from start and end of lan_network_item
lan_network_item=$(echo "${lan_network_item}" | sed -e 's~^[ \t]*~~;s~[ \t]*$~~')
# accept input to deluge daemon port - used for lan access
if [ -z "${INCOMING_PORT}" ]; then
iptables -A INPUT -i eth0 -s "${lan_network_item}" -p tcp --dport 8999 -j ACCEPT
for lan_network_device in "${lan_network_devices[@]}"; do
if [ -z "${WEBUI_PORT}" ]; then
iptables -A INPUT -i $lan_network_device -p tcp --dport 8080 -j ACCEPT
iptables -A INPUT -i $lan_network_device -p tcp --sport 8080 -j ACCEPT
else
iptables -A INPUT -i eth0 -s "${lan_network_item}" -p tcp --dport ${INCOMING_PORT} -j ACCEPT
iptables -A INPUT -i $lan_network_device -p tcp --dport ${WEBUI_PORT} -j ACCEPT
iptables -A INPUT -i $lan_network_device -p tcp --sport ${WEBUI_PORT} -j ACCEPT
fi
done
# accept input to qbittorrent daemon port - used for lan access
lancount=0
for lan_network_device in "${lan_network_devices[@]}"; do
if [ -z "${INCOMING_PORT}" ]; then
iptables -A INPUT -i $lan_network_device -s "${lan_network_list[$lancount]}" -p tcp --dport 8999 -j ACCEPT
else
iptables -A INPUT -i $lan_network_device -s "${lan_network_list[$lancount]}" -p tcp --dport ${INCOMING_PORT} -j ACCEPT
fi
lancount=$((lancount+1))
done
if [ -z "${INCOMING_PORT}" ]; then
iptables -A INPUT -i eth0 -s "${LAN_NETWORK}" -p tcp --dport 8999 -j ACCEPT
else
iptables -A INPUT -i eth0 -s "${LAN_NETWORK}" -p tcp --dport ${INCOMING_PORT} -j ACCEPT
fi
# accept input icmp (ping)
iptables -A INPUT -p icmp --icmp-type echo-reply -j ACCEPT
@ -145,9 +165,12 @@ ip6tables -P OUTPUT DROP 1>&- 2>&-
# accept output from tunnel adapter
iptables -A OUTPUT -o "${VPN_DEVICE_TYPE}" -j ACCEPT
# accept output to/from docker containers (172.x range is internal dhcp)
# accept output to/from LANs
for lan_network_item in "${lan_network_list[@]}"; do
iptables -A OUTPUT -s "${lan_network_item}" -d "${lan_network_item}" -j ACCEPT
done
iptables -A OUTPUT -s "${docker_network_cidr}" -d "${docker_network_cidr}" -j ACCEPT
# accept output from vpn gateway
iptables -A OUTPUT -o eth0 -p $VPN_PROTOCOL --dport $VPN_PORT -j ACCEPT
@ -166,31 +189,42 @@ if [[ $iptable_mangle_exit_code == 0 ]]; then
fi
# accept output from qBittorrent webui port - used for lan access
for lan_network_device in "${lan_network_devices[@]}"; do
if [ -z "${WEBUI_PORT}" ]; then
iptables -A INPUT -i $lan_network_device -p tcp --dport 8080 -j ACCEPT
iptables -A INPUT -i $lan_network_device -p tcp --sport 8080 -j ACCEPT
else
iptables -A INPUT -i $lan_network_device -p tcp --dport ${WEBUI_PORT} -j ACCEPT
iptables -A INPUT -i $lan_network_device -p tcp --sport ${WEBUI_PORT} -j ACCEPT
fi
done
if [ -z "${WEBUI_PORT}" ]; then
iptables -A OUTPUT -o eth0 -p tcp --dport 8080 -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --sport 8080 -j ACCEPT
else
echo "[info] WebUI port defined as ${WEBUI_PORT}" | ts '%Y-%m-%d %H:%M:%.S'
iptables -A OUTPUT -o eth0 -p tcp --dport ${WEBUI_PORT} -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --sport ${WEBUI_PORT} -j ACCEPT
fi
# process lan networks in the list
for lan_network_item in "${lan_network_list[@]}"; do
# strip whitespace from start and end of lan_network_item
lan_network_item=$(echo "${lan_network_item}" | sed -e 's~^[ \t]*~~;s~[ \t]*$~~')
# accept output to qBittorrent daemon port - used for lan access
# accept output to qBittorrent daemon port - used for lan access
lancount=0
for lan_network_device in "${lan_network_devices[@]}"; do
if [ -z "${INCOMING_PORT}" ]; then
iptables -A OUTPUT -o eth0 -d "${lan_network_item}" -p tcp --sport 8999 -j ACCEPT
iptables -A OUTPUT -o $lan_network_device -d "${lan_network_list[$lancount]}" -p tcp --sport 8999 -j ACCEPT
else
echo "[info] Incoming connections port defined as ${INCOMING_PORT}" | ts '%Y-%m-%d %H:%M:%.S'
iptables -A OUTPUT -o eth0 -d "${lan_network_item}" -p tcp --sport ${INCOMING_PORT} -j ACCEPT
iptables -A OUTPUT -o $lan_network_device -d "${lan_network_list[$lancount]}" -p tcp --sport ${INCOMING_PORT} -j ACCEPT
fi
lancount=$((lancount+1))
done
if [ -z "${INCOMING_PORT}" ]; then
iptables -A OUTPUT -o eth0 -d "${LAN_NETWORK}" -p tcp --sport 8999 -j ACCEPT
else
echo "[info] Incoming connections port defined as ${INCOMING_PORT}" | ts '%Y-%m-%d %H:%M:%.S'
iptables -A OUTPUT -o eth0 -d "${LAN_NETWORK}" -p tcp --sport ${INCOMING_PORT} -j ACCEPT
fi
# accept output for icmp (ping)
iptables -A OUTPUT -p icmp --icmp-type echo-request -j ACCEPT