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arch-qbittorrentvpn
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use netstat to get vnic lan adapter name

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pull/7/head
binhex 5 years ago
parent d3a5df8139
commit 204e9bb20e
1 changed files with 36 additions and 36 deletions
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72
run/root/iptable.sh
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@ -5,6 +5,28 @@ if [[ "${VPN_PROTOCOL}" == "tcp-client" ]]; then
export VPN_PROTOCOL="tcp"
fi
# identify docker bridge interface name (probably "${docker_interface}")
docker_interface=$(netstat -ie | grep -vE "lo|tun|tap" | sed -n '1!p' | grep -P -o -m 1 '^[^:]+')
if [[ "${DEBUG}" == "true" ]]; then
echo "[debug] Docker interface defined as ${docker_interface}"
fi
# identify ip for docker bridge interface
docker_ip=$(ifconfig "${docker_interface}" | grep -P -o -m 1 '(?<=inet\s)[^\s]+')
if [[ "${DEBUG}" == "true" ]]; then
echo "[debug] Docker IP defined as ${docker_ip}"
fi
# identify netmask for docker bridge interface
docker_mask=$(ifconfig "${docker_interface}" | grep -P -o -m 1 '(?<=netmask\s)[^\s]+')
if [[ "${DEBUG}" == "true" ]]; then
echo "[debug] Docker netmask defined as ${docker_mask}"
fi
# convert netmask into cidr format
docker_network_cidr=$(ipcalc "${docker_ip}" "${docker_mask}" | grep -P -o -m 1 "(?<=Network:)\s+[^\s]+")
echo "[info] Docker network defined as ${docker_network_cidr}"
# ip route
###
@ -17,8 +39,8 @@ for lan_network_item in "${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
echo "[info] Adding ${lan_network_item} as route via docker lan interface"
ip route add "${lan_network_item}" via "${DEFAULT_GATEWAY}" dev "${docker_interface}"
done
@ -27,7 +49,7 @@ echo "--------------------"
ip route
echo "--------------------"
# setup iptables marks to allow routing of defined ports via eth0
# setup iptables marks to allow routing of defined ports via lan interface"
###
if [[ "${DEBUG}" == "true" ]]; then
@ -42,35 +64,13 @@ if [[ $iptable_mangle_exit_code == 0 ]]; then
echo "[info] iptable_mangle support detected, adding fwmark for tables"
# setup route for qbittorrent http using set-mark to route traffic for port WEBUI_PORT to eth0
# setup route for qbittorrent http using set-mark to route traffic for port WEBUI_PORT to lan
echo "${WEBUI_PORT} qbittorrent_http" >> /etc/iproute2/rt_tables
ip rule add fwmark 1 table qbittorrent_http
ip route add default via $DEFAULT_GATEWAY table qbittorrent_http
fi
# identify docker bridge interface name (probably eth0)
docker_interface=$(netstat -ie | grep -vE "lo|tun|tap" | sed -n '1!p' | grep -P -o -m 1 '^[^:]+')
if [[ "${DEBUG}" == "true" ]]; then
echo "[debug] Docker interface defined as ${docker_interface}"
fi
# identify ip for docker bridge interface
docker_ip=$(ifconfig "${docker_interface}" | grep -P -o -m 1 '(?<=inet\s)[^\s]+')
if [[ "${DEBUG}" == "true" ]]; then
echo "[debug] Docker IP defined as ${docker_ip}"
fi
# identify netmask for docker bridge interface
docker_mask=$(ifconfig "${docker_interface}" | grep -P -o -m 1 '(?<=netmask\s)[^\s]+')
if [[ "${DEBUG}" == "true" ]]; then
echo "[debug] Docker netmask defined as ${docker_mask}"
fi
# convert netmask into cidr format
docker_network_cidr=$(ipcalc "${docker_ip}" "${docker_mask}" | grep -P -o -m 1 "(?<=Network:)\s+[^\s]+")
echo "[info] Docker network defined as ${docker_network_cidr}"
# input iptable rules
###
@ -87,11 +87,11 @@ iptables -A INPUT -i "${VPN_DEVICE_TYPE}" -j ACCEPT
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 $VPN_PORT -j ACCEPT
iptables -A INPUT -i "${docker_interface}" -p $VPN_PROTOCOL --sport $VPN_PORT -j ACCEPT
# accept input to qbittorrent port WEBUI_PORT
iptables -A INPUT -i eth0 -p tcp --dport "${WEBUI_PORT}" -j ACCEPT
iptables -A INPUT -i eth0 -p tcp --sport "${WEBUI_PORT}" -j ACCEPT
iptables -A INPUT -i "${docker_interface}" -p tcp --dport "${WEBUI_PORT}" -j ACCEPT
iptables -A INPUT -i "${docker_interface}" -p tcp --sport "${WEBUI_PORT}" -j ACCEPT
# process lan networks in the list
for lan_network_item in "${lan_network_list[@]}"; do
@ -100,11 +100,11 @@ for lan_network_item in "${lan_network_list[@]}"; do
lan_network_item=$(echo "${lan_network_item}" | sed -e 's~^[ \t]*~~;s~[ \t]*$~~')
# accept input to qbittorrent api - used for lan access
iptables -A INPUT -i eth0 -s "${lan_network_item}" -p tcp --dport "${WEBUI_PORT}" -j ACCEPT
iptables -A INPUT -i "${docker_interface}" -s "${lan_network_item}" -p tcp --dport "${WEBUI_PORT}" -j ACCEPT
# accept input to privoxy if enabled
if [[ $ENABLE_PRIVOXY == "yes" ]]; then
iptables -A INPUT -i eth0 -p tcp -s "${lan_network_item}" -d "${docker_network_cidr}" -j ACCEPT
iptables -A INPUT -i "${docker_interface}" -p tcp -s "${lan_network_item}" -d "${docker_network_cidr}" -j ACCEPT
fi
done
@ -131,7 +131,7 @@ iptables -A OUTPUT -o "${VPN_DEVICE_TYPE}" -j ACCEPT
iptables -A OUTPUT -s "${docker_network_cidr}" -d "${docker_network_cidr}" -j ACCEPT
# accept output from vpn gateway
iptables -A OUTPUT -o eth0 -p $VPN_PROTOCOL --dport $VPN_PORT -j ACCEPT
iptables -A OUTPUT -o "${docker_interface}" -p $VPN_PROTOCOL --dport $VPN_PORT -j ACCEPT
# if iptable mangle is available (kernel module) then use mark
if [[ $iptable_mangle_exit_code == 0 ]]; then
@ -143,8 +143,8 @@ if [[ $iptable_mangle_exit_code == 0 ]]; then
fi
# accept output from qbittorrent port WEBUI_PORT - used for lan access
iptables -A OUTPUT -o eth0 -p tcp --dport "${WEBUI_PORT}" -j ACCEPT
iptables -A OUTPUT -o eth0 -p tcp --sport "${WEBUI_PORT}" -j ACCEPT
iptables -A OUTPUT -o "${docker_interface}" -p tcp --dport "${WEBUI_PORT}" -j ACCEPT
iptables -A OUTPUT -o "${docker_interface}" -p tcp --sport "${WEBUI_PORT}" -j ACCEPT
# process lan networks in the list
for lan_network_item in "${lan_network_list[@]}"; do
@ -153,11 +153,11 @@ for lan_network_item in "${lan_network_list[@]}"; do
lan_network_item=$(echo "${lan_network_item}" | sed -e 's~^[ \t]*~~;s~[ \t]*$~~')
# accept output to qbittorrent api - used for lan access
iptables -A OUTPUT -o eth0 -d "${lan_network_item}" -p tcp --sport "${WEBUI_PORT}" -j ACCEPT
iptables -A OUTPUT -o "${docker_interface}" -d "${lan_network_item}" -p tcp --sport "${WEBUI_PORT}" -j ACCEPT
# accept output from privoxy if enabled - used for lan access
if [[ $ENABLE_PRIVOXY == "yes" ]]; then
iptables -A OUTPUT -o eth0 -p tcp -s "${docker_network_cidr}" -d "${lan_network_item}" -j ACCEPT
iptables -A OUTPUT -o "${docker_interface}" -p tcp -s "${docker_network_cidr}" -d "${lan_network_item}" -j ACCEPT
fi
done

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