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#!/bin/bash
ARCHITECTURE=$(uname -m)
OSNAME=$(uname)
LIBROOT="$(cd "$(dirname "${BASH_SOURCE[0]:-${(%):-%x}}")" && pwd)"
IPLISTPATH=$LIBROOT/../iplist
OSRELEASE=""
case $ARCHITECTURE in
x86_64)
WORDSTUFFIX="linux_amd64"
;;
armv7l)
WORDSTUFFIX="linux_arm7"
;;
armv6l)
WORDSTUFFIX="linux_arm6"
;;
aarch64)
WORDSTUFFIX="linux_arm7"
;;
*)
exit 1
;;
esac
case $OSNAME in
Linux)
OSRELEASE=$(source /etc/os-release && echo $ID)
;;
Darwin)
OSRELEASE="macos"
;;
esac
function nt::install_fullconenat() {
case $OSRELEASE in
arch)
pacman -Sy --noconfirm zstd base-devel
git clone git://git.netfilter.org/iptables.git
git clone https://github.com/Chion82/netfilter-full-cone-nat.git
curl -o netfilter-full-cone-nat/linux-5.15.patch https://raw.githubusercontent.com/archlinux/svntogit-community/packages/netfilter-fullconenat/trunk/linux-5.15.patch
patch -p1 -i netfilter-full-cone-nat/linux-5.15.patch netfilter-full-cone-nat/xt_FULLCONENAT.c
cd netfilter-full-cone-nat
make
zstd xt_FULLCONENAT.ko
cd ..
cp netfilter-full-cone-nat/xt_FULLCONENAT.ko.zst /usr/lib/modules/$(uname -r)/kernel/net/netfilter
depmod
modprobe xt_FULLCONENAT
echo xt_FULLCONENAT > /etc/modules-load.d/xt_FULLCONENAT.conf
cp netfilter-full-cone-nat/libipt_FULLCONENAT.c iptables/extensions/
cd iptables
./autogen.sh
./configure --prefix=/usr
make
cp extensions/libipt_FULLCONENAT.so /usr/lib/xtables
;;
esac
}
function nt::iptables_clear() {
iptables -P INPUT ACCEPT
iptables -P FORWARD ACCEPT
iptables -P OUTPUT ACCEPT
ip6tables -P INPUT ACCEPT
ip6tables -P FORWARD ACCEPT
ip6tables -P OUTPUT ACCEPT
iptables -t nat -F
ip6tables -t nat -F
iptables -t mangle -F
ip6tables -t mangle -F
iptables -F
iptables -X
ip6tables -F
ip6tables -X
ip6tables -D INPUT -p tcp --tcp-flags RST RST -j DROP
iptables -D INPUT -p tcp --tcp-flags RST RST -j DROP
}
function nt::iptables_nat(){
nt::iptables_clear
sysctl -w net.ipv4.conf.all.forwarding=1
sysctl -w net.ipv6.conf.all.forwarding=1
iptables -t nat -A POSTROUTING -j MASQUERADE
ip6tables -t nat -A POSTROUTING -j MASQUERADE
iptables -A FORWARD --protocol tcp --tcp-flags SYN,RST SYN --jump TCPMSS --clamp-mss-to-pmtu
ip6tables -A FORWARD --protocol tcp --tcp-flags SYN,RST SYN --jump TCPMSS --clamp-mss-to-pmtu
ip6tables -A INPUT -p tcp --tcp-flags RST RST -j DROP
iptables -A INPUT -p tcp --tcp-flags RST RST -j DROP
}
function nt::iptables_snat(){
# nt::iptables_snat 10.0.0.0/8 wan x.x.x.x
iptables -t nat -A POSTROUTING -s $1 -o $2 -j SNAT --to-source $3
}
function nt::ip2int()
{
local a b c d
{ IFS=. read a b c d; } <<< $1
echo $(((((((a << 8) | b) << 8) | c) << 8) | d))
}
function nt::int2ip()
{
local ui32=$1; shift
local ip n
for n in 1 2 3 4; do
ip=$((ui32 & 0xff))${ip:+.}$ip
ui32=$((ui32 >> 8))
done
echo $ip
}
function nt::netmask()
{
# Example: netmask 24 => 255.255.255.0
local mask=$((0xffffffff << (32 - $1))); shift
int2ip $mask
}
function nt::broadcast()
{
# Example: broadcast 192.0.2.0 24 => 192.0.2.255
local addr=$(ip2int $1); shift
local mask=$((0xffffffff << (32 -$1))); shift
int2ip $((addr | ~mask))
}
function nt::network()
{
# Example: network 192.0.2.0 24 => 192.0.2.0
local addr=$(ip2int $1); shift
local mask=$((0xffffffff << (32 -$1))); shift
int2ip $((addr & mask))
}
function nt::portforward()
{
sourceip=$1
sourceport=$2
destinationip=$3
destinationport=$4
snatip=$5
iptables -t nat -A PREROUTING -d $sourceip -p tcp --dport $sourceport -j DNAT --to $destinationip:$destinationport
iptables -t nat -A POSTROUTING -d $destinationip -p tcp -dport $destinationport -j SNAT --to $snatip
}
function nt::china_route_novia() {
case $OSNAME in
Linux)
for ip in $(cat $IPLISTPATH/cn_rules); do
ip route add $ip dev $1 > /dev/null 2>&1 > /dev/null
done
;;
Darwin)
;;
*)
exit 1
;;
esac
}
function nt::china_route() {
case $OSNAME in
Linux)
for ip in $(cat $IPLISTPATH/cn_rules); do
ip route add $ip via $1 dev $2 > /dev/null 2>&1 > /dev/null
done
;;
Darwin)
;;
*)
exit 1
;;
esac
}
function nt::world_route() {
case $OSNAME in
Linux)
for ip in $(cat $IPLISTPATH/world_rules); do
ip route add $ip via $1 dev $2 # > /dev/null 2>&1 > /dev/null
done
;;
Darwin)
;;
*)
exit 1
;;
esac
}
function nt::world_route6() {
case $OSNAME in
Linux)
for ip in $(cat $IPLISTPATH/v6_world_rules); do
ip -6 route add $ip via $1 dev $2 # > /dev/null 2>&1 > /dev/null
done
;;
Darwin)
;;
*)
exit 1
;;
esac
}
function nt::china_route6() {
case $OSNAME in
Linux)
for ip in $(cat $IPLISTPATH/v6_china_rules); do
ip -6 route add $ip dev $1 # > /dev/null 2>&1 > /dev/null
done
;;
Darwin)
;;
*)
exit 1
;;
esac
}
function nt::route6_dev() {
case $OSNAME in
Linux)
for ip in $(cat $IPLISTPATH/$1); do
ip -6 route add $ip dev $2 # > /dev/null 2>&1 > /dev/null
done
;;
Darwin)
;;
*)
exit 1
;;
esac
}
function nt::remove_world_route() {
case $OSNAME in
Linux)
for ip in $(cat $IPLISTPATH/world_rules); do
ip route del $ip> /dev/null 2>&1 > /dev/null
done
;;
Darwin)
;;
*)
exit 1
;;
esac
}
function nt::remove_world_route6() {
case $OSNAME in
Linux)
for ip in $(cat $IPLISTPATH/v6_world_rules); do
ip -6 route del $ip> /dev/null 2>&1 > /dev/null
done
;;
Darwin)
;;
*)
exit 1
;;
esac
}
function nt::add_world_rule(){
echo $1 >> $IPLISTPATH/own_world_rules
cat $IPLISTPATH/own_world_rules $IPLISTPATH/world_rules | cidr-merger --batch --cidr > $IPLISTPATH/_world_rules
rm $IPLISTPATH/world_rules
mv $IPLISTPATH/_world_rules $IPLISTPATH/world_rules
ip route add $1 via $2 dev $3
}
function nt::add_v6_world_rule(){
# nt::add_v6_world_rule 2a02:26f0:6e00::/48 fc80:1989:604:2021::1 wg1
echo $1 >> $IPLISTPATH/v6_world_rules
ip -6 route add $1 via $2 dev $3
}
function nt::build_world_rule(){
cat $IPLISTPATH/own_world_rules $IPLISTPATH/world_rules | cidr-merger --batch --cidr > $IPLISTPATH/_world_rules
rm $IPLISTPATH/world_rules
mv $IPLISTPATH/_world_rules $IPLISTPATH/world_rules
}
function nt::install_cider_merger(){
go get github.com/zhanhb/cidr-merger
}
echo "ARCH: $ARCHITECTURE"
echo "Libroot:" $LIBROOT
source $LIBROOT/wg.sh
source $LIBROOT/ssu.sh
source $LIBROOT/badvpn.sh
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