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nftables.sh
executable file
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nftables.sh
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#!/bin/bash
DIR="$(cd "$(dirname "$0")" && pwd)"
MY_PATH=$DIR/nftables.sh
NFTSET_LANLIST="passwall2_lanlist"
NFTSET_VPSLIST="passwall2_vpslist"
NFTSET_LANLIST6="passwall2_lanlist6"
NFTSET_VPSLIST6="passwall2_vpslist6"
FORCE_INDEX=0
. /lib/functions/network.sh
FWI=$(uci -q get firewall.passwall2.path 2>/dev/null)
FAKE_IP="198.18.0.0/16"
FAKE_IP_6="fc00::/18"
factor() {
if [ -z "$1" ] || [ -z "$2" ]; then
echo ""
elif [ "$1" == "1:65535" ]; then
echo ""
# acl mac address
elif [ -n "$(echo $1 | grep -E '([A-Fa-f0-9]{2}:){5}[A-Fa-f0-9]{2}')" ]; then
echo "$2 {$1}"
else
echo "$2 {$(echo $1 | sed 's/:/-/g')}"
fi
}
insert_rule_before() {
[ $# -ge 4 ] || {
return 1
}
local table_name="${1}"; shift
local chain_name="${1}"; shift
local keyword="${1}"; shift
local rule="${1}"; shift
local default_index="${1}"; shift
default_index=${default_index:-0}
local _index=$(nft -a list chain $table_name $chain_name 2>/dev/null | grep "$keyword" | awk -F '# handle ' '{print$2}' | head -n 1 | awk '{print $1}')
if [ -z "${_index}" ] && [ "${default_index}" = "0" ]; then
nft "add rule $table_name $chain_name $rule"
else
if [ -z "${_index}" ]; then
_index=${default_index}
fi
nft "insert rule $table_name $chain_name position $_index $rule"
fi
}
insert_rule_after() {
[ $# -ge 4 ] || {
return 1
}
local table_name="${1}"; shift
local chain_name="${1}"; shift
local keyword="${1}"; shift
local rule="${1}"; shift
local default_index="${1}"; shift
default_index=${default_index:-0}
local _index=$(nft -a list chain $table_name $chain_name 2>/dev/null | grep "$keyword" | awk -F '# handle ' '{print$2}' | head -n 1 | awk '{print $1}')
if [ -z "${_index}" ] && [ "${default_index}" = "0" ]; then
nft "add rule $table_name $chain_name $rule"
else
if [ -n "${_index}" ]; then
_index=$((_index + 1))
else
_index=${default_index}
fi
nft "insert rule $table_name $chain_name position $_index $rule"
fi
}
RULE_LAST_INDEX() {
[ $# -ge 3 ] || {
echolog "索引列举方式不正确（nftables），终止执行！"
return 1
}
local table_name="${1}"; shift
local chain_name="${1}"; shift
local keyword="${1}"; shift
local default="${1:-0}"; shift
local _index=$(nft -a list chain $table_name $chain_name 2>/dev/null | grep "$keyword" | awk -F '# handle ' '{print$2}' | head -n 1 | awk '{print $1}')
echo "${_index:-${default}}"
}
REDIRECT() {
local s="counter redirect"
[ -n "$1" ] && {
local s="$s to :$1"
[ "$2" == "MARK" ] && s="counter meta mark set $1"
[ "$2" == "TPROXY" ] && {
s="counter meta mark 1 tproxy to :$1"
}
[ "$2" == "TPROXY4" ] && {
s="counter meta mark 1 tproxy ip to :$1"
}
[ "$2" == "TPROXY6" ] && {
s="counter meta mark 1 tproxy ip6 to :$1"
}
}
echo $s
}
destroy_nftset() {
for i in "$@"; do
nft flush set inet fw4 $i 2>/dev/null
nft delete set inet fw4 $i 2>/dev/null
done
}
insert_nftset() {
local nftset_name="${1}"; shift
local timeout_argument="${1}"; shift
local defalut_timeout_argument="3650d"
local nftset_elements
[ -n "${1}" ] && {
if [ "$timeout_argument" == "-1" ]; then
nftset_elements=$(echo -e $@ | sed 's/\s/, /g')
elif [ "$timeout_argument" == "0" ]; then
nftset_elements=$(echo -e $@ | sed "s/\s/ timeout $defalut_timeout_argument, /g" | sed "s/$/ timeout $defalut_timeout_argument/")
else
nftset_elements=$(echo -e $@ | sed "s/\s/ timeout $timeout_argument, /g" | sed "s/$/ timeout $timeout_argument/")
fi
mkdir -p $TMP_PATH2/nftset
cat > "$TMP_PATH2/nftset/$nftset_name" <<-EOF
define $nftset_name = {$nftset_elements}
add element inet fw4 $nftset_name \$$nftset_name
EOF
nft -f "$TMP_PATH2/nftset/$nftset_name"
rm -rf "$TMP_PATH2/nftset"
}
}
gen_nftset() {
local nftset_name="${1}"; shift
local ip_type="${1}"; shift
# 0 - don't set defalut timeout
local timeout_argument_set="${1}"; shift
# 0 - don't let element timeout(3650 days) when set's timeout parameters be seted
# -1 - follow the set's timeout parameters
local timeout_argument_element="${1}"; shift
nft "list set inet fw4 $nftset_name" &>/dev/null
if [ $? -ne 0 ]; then
if [ "$timeout_argument_set" == "0" ]; then
nft "add set inet fw4 $nftset_name { type $ip_type; flags interval, timeout; auto-merge; }"
else
nft "add set inet fw4 $nftset_name { type $ip_type; flags interval, timeout; timeout $timeout_argument_set; gc-interval $timeout_argument_set; auto-merge; }"
fi
fi
[ -n "${1}" ] && insert_nftset $nftset_name $timeout_argument_element $@
}
get_action_chain_name() {
echo "全局代理"
}
gen_lanlist() {
cat <<-EOF
0.0.0.0/8
10.0.0.0/8
100.64.0.0/10
127.0.0.0/8
169.254.0.0/16
172.16.0.0/12
192.168.0.0/16
224.0.0.0/4
240.0.0.0/4
EOF
}
gen_lanlist_6() {
cat <<-EOF
::/128
::1/128
::ffff:0:0/96
::ffff:0:0:0/96
64:ff9b::/96
100::/64
2001::/32
2001:20::/28
2001:db8::/32
2002::/16
fc00::/7
fe80::/10
ff00::/8
EOF
}
get_wan_ip() {
local NET_IF
local NET_ADDR
network_flush_cache
network_find_wan NET_IF
network_get_ipaddr NET_ADDR "${NET_IF}"
echo $NET_ADDR
}
get_wan6_ip() {
local NET_IF
local NET_ADDR
network_flush_cache
network_find_wan6 NET_IF
network_get_ipaddr6 NET_ADDR "${NET_IF}"
echo $NET_ADDR
}
load_acl() {
[ "$ENABLED_ACLS" == 1 ] && {
acl_app
echolog "访问控制："
for sid in $(ls -F ${TMP_ACL_PATH} | grep '/$' | awk -F '/' '{print $1}' | grep -v 'default'); do
eval $(uci -q show "${CONFIG}.${sid}" | cut -d'.' -sf 3-)
tcp_no_redir_ports=${tcp_no_redir_ports:-default}
udp_no_redir_ports=${udp_no_redir_ports:-default}
tcp_proxy_mode="global"
udp_proxy_mode="global"
node=${node:-default}
[ "$tcp_no_redir_ports" = "default" ] && tcp_no_redir_ports=$TCP_NO_REDIR_PORTS
[ "$udp_no_redir_ports" = "default" ] && udp_no_redir_ports=$UDP_NO_REDIR_PORTS
[ "$tcp_redir_ports" = "default" ] && tcp_redir_ports=$TCP_REDIR_PORTS
[ "$udp_redir_ports" = "default" ] && udp_redir_ports=$UDP_REDIR_PORTS
node_remark=$(config_n_get $NODE remarks)
[ -s "${TMP_ACL_PATH}/${sid}/var_node" ] && node=$(cat ${TMP_ACL_PATH}/${sid}/var_node)
[ -s "${TMP_ACL_PATH}/${sid}/var_port" ] && redir_port=$(cat ${TMP_ACL_PATH}/${sid}/var_port)
[ -n "$node" ] && [ "$node" != "default" ] && node_remark=$(config_n_get $node remarks)
write_ipset_direct=${write_ipset_direct:-1}
[ "${write_ipset_direct}" = "1" ] && {
if [ "$node" = "default" ]; then
local nftset_whitelist=${nftset_global_whitelist}
local nftset_whitelist6=${nftset_global_whitelist6}
else
local nftset_whitelist="passwall2_${sid}_whitelist"
local nftset_whitelist6="passwall2_${sid}_whitelist6"
gen_nftset $nftset_whitelist ipv4_addr 0 0
gen_nftset $nftset_whitelist6 ipv6_addr 0 0
fi
}
for i in $(cat ${TMP_ACL_PATH}/${sid}/rule_list); do
if [ -n "$(echo ${i} | grep '^iprange:')" ]; then
_iprange=$(echo ${i} | sed 's#iprange:##g')
_ipt_source=$(factor ${_iprange} "ip saddr")
msg="【$remarks】，IP range【${_iprange}】，"
elif [ -n "$(echo ${i} | grep '^ipset:')" ]; then
_ipset=$(echo ${i} | sed 's#ipset:##g')
_ipt_source="ip daddr @${_ipset}"
msg="【$remarks】，NFTset【${_ipset}】，"
elif [ -n "$(echo ${i} | grep '^ip:')" ]; then
_ip=$(echo ${i} | sed 's#ip:##g')
_ipt_source=$(factor ${_ip} "ip saddr")
msg="【$remarks】，IP【${_ip}】，"
elif [ -n "$(echo ${i} | grep '^mac:')" ]; then
_mac=$(echo ${i} | sed 's#mac:##g')
_ipt_source=$(factor ${_mac} "ether saddr")
msg="【$remarks】，MAC【${_mac}】，"
else
continue
fi
[ "$tcp_no_redir_ports" != "disable" ] && {
if [ "$tcp_no_redir_ports" != "1:65535" ]; then
nft "add rule inet fw4 $nft_prerouting_chain ${_ipt_source} ip protocol tcp $(factor $tcp_no_redir_ports "tcp dport") counter return comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE_V6 ${_ipt_source} meta l4proto tcp $(factor $tcp_no_redir_ports "tcp dport") counter return comment \"$remarks\""
echolog " - ${msg}不代理 TCP 端口[${tcp_no_redir_ports}]"
else
#结束时会return，无需加多余的规则。
tcp_proxy_mode="disable"
echolog " - ${msg}不代理所有 TCP"
fi
}
[ "$udp_no_redir_ports" != "disable" ] && {
if [ "$udp_no_redir_ports" != "1:65535" ]; then
nft "add rule inet fw4 PSW2_MANGLE ip protocol udp ${_ipt_source} $(factor $udp_no_redir_ports "udp dport") counter return comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp ${_ipt_source} $(factor $udp_no_redir_ports "udp dport") counter return comment \"$remarks\"" 2>/dev/null
echolog " - ${msg}不代理 UDP 端口[${udp_no_redir_ports}]"
else
#结束时会return，无需加多余的规则。
udp_proxy_mode="disable"
echolog " - ${msg}不代理所有 UDP"
fi
}
[ "$tcp_proxy_mode" != "disable" ] && [ -n "$redir_port" ] && {
[ -s "${TMP_ACL_PATH}/${sid}/var_redirect_dns_port" ] && nft "add rule inet fw4 PSW2_REDIRECT ip protocol udp ${_ipt_source} udp dport 53 counter redirect to $(cat ${TMP_ACL_PATH}/${sid}/var_redirect_dns_port) comment \"$remarks\""
msg2="${msg}使用 TCP 节点[$node_remark]"
if [ -n "${is_tproxy}" ]; then
msg2="${msg2}(TPROXY:${redir_port})"
else
msg2="${msg2}(REDIRECT:${redir_port})"
fi
[ "${write_ipset_direct}" = "1" ] && [ -z "${is_tproxy}" ] && nft "add rule inet fw4 PSW2_NAT ip protocol tcp ${_ipt_source} ip daddr @$nftset_whitelist counter return comment \"$remarks\""
[ "${write_ipset_direct}" = "1" ] && [ -n "${is_tproxy}" ] && nft "add rule inet fw4 PSW2_MANGLE ip protocol tcp ${_ipt_source} ip daddr @$nftset_whitelist counter return comment \"$remarks\""
[ "$accept_icmp" = "1" ] && {
nft "add rule inet fw4 PSW2_ICMP_REDIRECT ip protocol icmp ${_ipt_source} ip daddr $FAKE_IP $(REDIRECT) comment \"$remarks\""
nft "add rule inet fw4 PSW2_ICMP_REDIRECT ip protocol icmp ${_ipt_source} $(REDIRECT) comment \"$remarks\""
nft "add rule inet fw4 PSW2_ICMP_REDIRECT ip protocol icmp ${_ipt_source} return comment \"$remarks\""
}
[ "$accept_icmpv6" = "1" ] && [ "$PROXY_IPV6" == "1" ] && {
nft "add rule inet fw4 PSW2_ICMP_REDIRECT meta l4proto icmpv6 ${_ipt_source} ip6 daddr $FAKE_IP_6 $(REDIRECT) comment \"$remarks\"" 2>/dev/null
nft "add rule inet fw4 PSW2_ICMP_REDIRECT meta l4proto icmpv6 ${_ipt_source} $(REDIRECT) comment \"$remarks\"" 2>/dev/null
nft "add rule inet fw4 PSW2_ICMP_REDIRECT meta l4proto icmpv6 ${_ipt_source} return comment \"$remarks\"" 2>/dev/null
}
if [ -z "${is_tproxy}" ]; then
nft "add rule inet fw4 PSW2_NAT ip protocol tcp ${_ipt_source} ip daddr $FAKE_IP $(REDIRECT $redir_port) comment \"$remarks\""
nft "add rule inet fw4 PSW2_NAT ip protocol tcp ${_ipt_source} $(factor $tcp_redir_ports "tcp dport") $(REDIRECT $redir_port) comment \"$remarks\""
else
nft "add rule inet fw4 PSW2_MANGLE ip protocol tcp ${_ipt_source} ip daddr $FAKE_IP counter jump PSW2_RULE comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol tcp ${_ipt_source} $(factor $tcp_redir_ports "tcp dport") counter jump PSW2_RULE comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol tcp ${_ipt_source} $(REDIRECT $redir_port TPROXY4) comment \"$remarks\""
fi
[ "$PROXY_IPV6" == "1" ] && {
[ "${write_ipset_direct}" = "1" ] && nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto tcp ${_ipt_source} ip6 daddr @$nftset_whitelist6 counter return comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto tcp ${_ipt_source} ip6 daddr $FAKE_IP_6 counter jump PSW2_RULE comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto tcp ${_ipt_source} $(factor $tcp_redir_ports "tcp dport") jump PSW2_RULE comment \"$remarks\"" 2>/dev/null
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto tcp ${_ipt_source} $(REDIRECT $redir_port TPROXY) comment \"$remarks\"" 2>/dev/null
}
echolog " - ${msg2}"
}
nft "add rule inet fw4 $nft_prerouting_chain ip protocol tcp ${_ipt_source} counter return comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto tcp ${_ipt_source} counter return comment \"$remarks\"" 2>/dev/null
[ "$udp_proxy_mode" != "disable" ] && [ -n "$redir_port" ] && {
msg2="${msg}使用 UDP 节点[$node_remark](TPROXY:${redir_port})"
[ "${write_ipset_direct}" = "1" ] && nft "add rule inet fw4 PSW2_MANGLE ip protocol udp ${_ipt_source} ip daddr @$nftset_whitelist counter return comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol udp ${_ipt_source} ip daddr $FAKE_IP counter jump PSW2_RULE comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol udp ${_ipt_source} $(factor $udp_redir_ports "udp dport") jump PSW2_RULE comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol udp ${_ipt_source} $(REDIRECT $redir_port TPROXY4) comment \"$remarks\""
[ "$PROXY_IPV6" == "1" ] && [ "$PROXY_IPV6_UDP" == "1" ] && {
[ "${write_ipset_direct}" = "1" ] && nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp ${_ipt_source} ip6 daddr @$nftset_whitelist6 counter return comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp ${_ipt_source} ip6 daddr $FAKE_IP_6 counter jump PSW2_RULE comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp ${_ipt_source} $(factor $udp_redir_ports "udp dport") counter jump PSW2_RULE comment \"$remarks\"" 2>/dev/null
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp ${_ipt_source} $(REDIRECT $redir_port TPROXY) comment \"$remarks\"" 2>/dev/null
}
echolog " - ${msg2}"
}
nft "add rule inet fw4 PSW2_MANGLE ip protocol udp ${_ipt_source} counter return comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp ${_ipt_source} counter return comment \"$remarks\"" 2>/dev/null
done
unset enabled sid remarks sources tcp_proxy_mode udp_proxy_mode tcp_no_redir_ports udp_no_redir_ports tcp_redir_ports udp_redir_ports node
unset _ip _mac _iprange _ipset _ip_or_mac rule_list redir_port node_remark
unset msg msg2
done
}
[ "$ENABLED_DEFAULT_ACL" == 1 ] && [ "$CLIENT_PROXY" == 1 ] && {
# 加载默认代理模式
msg="【默认】，"
[ "$TCP_NO_REDIR_PORTS" != "disable" ] && {
nft add rule inet fw4 $nft_prerouting_chain ip protocol tcp $(factor $TCP_NO_REDIR_PORTS "tcp dport") counter return comment \"默认\"
nft add rule inet fw4 PSW2_MANGLE_V6 meta l4proto tcp $(factor $TCP_NO_REDIR_PORTS "tcp dport") counter return comment \"默认\"
if [ "$TCP_NO_REDIR_PORTS" != "1:65535" ]; then
echolog " - ${msg}不代理 TCP 端口[${TCP_NO_REDIR_PORTS}]"
else
TCP_PROXY_MODE="disable"
echolog " - ${msg}不代理所有 TCP 端口"
fi
}
[ "$UDP_NO_REDIR_PORTS" != "disable" ] && {
nft "add inet fw4 PSW2_MANGLE ip protocol udp $(factor $UDP_NO_REDIR_PORTS "udp dport") counter return comment \"默认\""
nft "add inet fw4 PSW2_MANGLE_V6 counter meta l4proto udp $(factor $UDP_NO_REDIR_PORTS "udp dport") counter return comment \"默认\""
if [ "$UDP_NO_REDIR_PORTS" != "1:65535" ]; then
echolog " - ${msg}不代理 UDP 端口[${UDP_NO_REDIR_PORTS}]"
else
UDP_PROXY_MODE="disable"
echolog " - ${msg}不代理所有 UDP 端口"
fi
}
if [ "$TCP_PROXY_MODE" != "disable" ] && [ "$NODE" != "nil" ]; then
msg2="${msg}使用 TCP 节点[$(config_n_get $NODE remarks)]"
if [ -n "${is_tproxy}" ]; then
msg2="${msg2}(TPROXY:${REDIR_PORT})"
else
msg2="${msg2}(REDIRECT:${REDIR_PORT})"
fi
[ "${WRITE_IPSET_DIRECT}" = "1" ] && [ -z "${is_tproxy}" ] && nft "add rule inet fw4 PSW2_NAT ip protocol tcp ip daddr @$nftset_global_whitelist counter return comment \"$remarks\""
[ "${WRITE_IPSET_DIRECT}" = "1" ] && [ -n "${is_tproxy}" ] && nft "add rule inet fw4 PSW2_MANGLE ip protocol tcp ip daddr @$nftset_global_whitelist counter return comment \"$remarks\""
[ "$accept_icmp" = "1" ] && {
nft "add rule inet fw4 PSW2_ICMP_REDIRECT ip protocol icmp ip daddr $FAKE_IP $(REDIRECT) comment \"默认\""
nft "add rule inet fw4 PSW2_ICMP_REDIRECT ip protocol icmp $(REDIRECT) comment \"默认\""
nft "add rule inet fw4 PSW2_ICMP_REDIRECT ip protocol icmp return comment \"默认\""
}
[ "$accept_icmpv6" = "1" ] && [ "$PROXY_IPV6" == "1" ] && {
nft "add rule inet fw4 PSW2_ICMP_REDIRECT meta l4proto icmpv6 ip6 daddr $FAKE_IP_6 $(REDIRECT) comment \"默认\""
nft "add rule inet fw4 PSW2_ICMP_REDIRECT meta l4proto icmpv6 $(REDIRECT) comment \"默认\""
nft "add rule inet fw4 PSW2_ICMP_REDIRECT meta l4proto icmpv6 return comment \"默认\""
}
if [ -z "${is_tproxy}" ]; then
nft "add rule inet fw4 PSW2_NAT ip protocol tcp ip daddr $FAKE_IP $(REDIRECT $REDIR_PORT) comment \"默认\""
nft "add rule inet fw4 PSW2_NAT ip protocol tcp $(factor $TCP_REDIR_PORTS "tcp dport") $(REDIRECT $REDIR_PORT) comment \"默认\""
else
nft "add rule inet fw4 PSW2_MANGLE ip protocol tcp ip daddr $FAKE_IP counter jump PSW2_RULE comment \"默认\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol tcp $(factor $TCP_REDIR_PORTS "tcp dport") jump PSW2_RULE comment \"默认\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol tcp $(REDIRECT $REDIR_PORT TPROXY4) comment \"默认\""
fi
[ "$PROXY_IPV6" == "1" ] && {
[ "${WRITE_IPSET_DIRECT}" = "1" ] && nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto tcp ip6 daddr @$nftset_global_whitelist6 counter return comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto tcp ip6 daddr $FAKE_IP_6 jump PSW2_RULE comment \"默认\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto tcp $(factor $TCP_REDIR_PORTS "tcp dport") jump PSW2_RULE comment \"默认\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto tcp $(REDIRECT $REDIR_PORT TPROXY) comment \"默认\""
}
echolog "${msg2}"
fi
if [ "$UDP_PROXY_MODE" != "disable" ] && [ "$NODE" != "nil" ]; then
msg2="${msg}使用 UDP 节点[$(config_n_get $NODE remarks)](TPROXY:${REDIR_PORT})"
[ "${WRITE_IPSET_DIRECT}" = "1" ] && nft "add rule inet fw4 PSW2_MANGLE ip protocol udp ip daddr @$nftset_global_whitelist counter return comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol udp ip daddr $FAKE_IP counter jump PSW2_RULE comment \"默认\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol udp $(factor $UDP_REDIR_PORTS "udp dport") jump PSW2_RULE comment \"默认\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol udp $(REDIRECT $REDIR_PORT TPROXY4) comment \"默认\""
[ "$PROXY_IPV6" == "1" ] && [ "$PROXY_IPV6_UDP" == "1" ] && {
[ "${WRITE_IPSET_DIRECT}" = "1" ] && nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp ip6 daddr @$nftset_global_whitelist6 counter return comment \"$remarks\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp ip6 daddr $FAKE_IP_6 jump PSW2_RULE comment \"默认\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp $(factor $UDP_REDIR_PORTS "udp dport") jump PSW2_RULE comment \"默认\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp $(REDIRECT $REDIR_PORT TPROXY) comment \"默认\""
}
echolog "${msg2}"
udp_flag=1
fi
}
}
filter_haproxy() {
for item in $(uci show $CONFIG | grep ".lbss=" | cut -d "'" -f 2); do
local ip=$(get_host_ip ipv4 $(echo $item | awk -F ":" '{print $1}') 1)
[ -n "$ip" ] && insert_nftset $NFTSET_VPSLIST "-1" $ip
done
echolog "加入负载均衡的节点到nftset[$NFTSET_VPSLIST]直连完成"
}
filter_vps_addr() {
for server_host in $@; do
local vps_ip4=$(get_host_ip "ipv4" ${server_host})
local vps_ip6=$(get_host_ip "ipv6" ${server_host})
[ -n "$vps_ip4" ] && insert_nftset $NFTSET_VPSLIST "-1" $vps_ip4
[ -n "$vps_ip6" ] && insert_nftset $NFTSET_VPSLIST6 "-1" $vps_ip6
done
}
filter_vpsip() {
insert_nftset $NFTSET_VPSLIST "-1" $(uci show $CONFIG | grep ".address=" | cut -d "'" -f 2 | grep -E "([0-9]{1,3}[\.]){3}[0-9]{1,3}" | sed -e "/^$/d")
insert_nftset $NFTSET_VPSLIST6 "-1" $(uci show $CONFIG | grep ".address=" | cut -d "'" -f 2 | grep -E "([A-Fa-f0-9]{1,4}::?){1,7}[A-Fa-f0-9]{1,4}" | sed -e "/^$/d")
echolog "加入所有节点到nftset[$NFTSET_VPSLIST]直连完成"
}
filter_node() {
local proxy_node=${1}
local stream=$(echo ${2} | tr 'A-Z' 'a-z')
local proxy_port=${3}
filter_rules() {
local node=${1}
local stream=${2}
local _proxy=${3}
local _port=${4}
local _is_tproxy msg msg2
if [ -n "$node" ] && [ "$node" != "nil" ]; then
local type=$(echo $(config_n_get $node type) | tr 'A-Z' 'a-z')
local address=$(config_n_get $node address)
local port=$(config_n_get $node port)
_is_tproxy=${is_tproxy}
[ "$stream" == "udp" ] && _is_tproxy="TPROXY"
if [ -n "${_is_tproxy}" ]; then
msg="TPROXY"
else
msg="REDIRECT"
fi
else
echolog " - 节点配置不正常，略过"
return 0
fi
local ADD_INDEX=$FORCE_INDEX
for _ipt in 4 6; do
[ "$_ipt" == "4" ] && _ip_type=ip && _set_name=$NFTSET_VPSLIST
[ "$_ipt" == "6" ] && _ip_type=ip6 && _set_name=$NFTSET_VPSLIST6
nft "list chain inet fw4 $nft_output_chain" 2>/dev/null | grep -q "${address}:${port}"
if [ $? -ne 0 ]; then
unset dst_rule
local dst_rule="jump PSW2_RULE"
msg2="按规则路由(${msg})"
[ -n "${is_tproxy}" ] || {
dst_rule=$(REDIRECT $_port)
msg2="套娃使用(${msg}:${port} -> ${_port})"
}
[ -n "$_proxy" ] && [ "$_proxy" == "1" ] && [ -n "$_port" ] || {
ADD_INDEX=$(RULE_LAST_INDEX "inet fw4" $nft_output_chain $_set_name $FORCE_INDEX)
dst_rule="return"
msg2="直连代理"
}
nft "insert rule inet fw4 $nft_output_chain position $ADD_INDEX meta l4proto $stream $_ip_type daddr $address $stream dport $port $dst_rule comment \"${address}:${port}\"" 2>/dev/null
else
msg2="已配置过的节点，"
fi
done
msg="[$?]$(echo ${2} | tr 'a-z' 'A-Z')${msg2}使用链${ADD_INDEX}，节点（${type}）：${address}:${port}"
#echolog " - ${msg}"
}
local proxy_protocol=$(config_n_get $proxy_node protocol)
local proxy_type=$(echo $(config_n_get $proxy_node type nil) | tr 'A-Z' 'a-z')
[ "$proxy_type" == "nil" ] && echolog " - 节点配置不正常，略过！：${proxy_node}" && return 0
if [ "$proxy_protocol" == "_balancing" ]; then
#echolog " - 多节点负载均衡（${proxy_type}）..."
proxy_node=$(config_n_get $proxy_node balancing_node)
for _node in $proxy_node; do
filter_rules "$_node" "$stream"
done
elif [ "$proxy_protocol" == "_shunt" ]; then
#echolog " - 按请求目的地址分流（${proxy_type}）..."
local default_node=$(config_n_get $proxy_node default_node _direct)
local main_node=$(config_n_get $proxy_node main_node nil)
if [ "$main_node" != "nil" ]; then
filter_rules $main_node $stream
else
if [ "$default_node" != "_direct" ] && [ "$default_node" != "_blackhole" ]; then
filter_rules $default_node $stream
fi
fi
:<<!
local default_node_address=$(get_host_ip ipv4 $(config_n_get $default_node address) 1)
local default_node_port=$(config_n_get $default_node port)
local shunt_ids=$(uci show $CONFIG | grep "=shunt_rules" | awk -F '.' '{print $2}' | awk -F '=' '{print $1}')
for shunt_id in $shunt_ids; do
#local shunt_proxy=$(config_n_get $proxy_node "${shunt_id}_proxy" 0)
local shunt_proxy=0
local shunt_node=$(config_n_get $proxy_node "${shunt_id}" nil)
[ "$shunt_node" != "nil" ] && {
[ "$shunt_proxy" == 1 ] && {
local shunt_node_address=$(get_host_ip ipv4 $(config_n_get $shunt_node address) 1)
local shunt_node_port=$(config_n_get $shunt_node port)
[ "$shunt_node_address" == "$default_node_address" ] && [ "$shunt_node_port" == "$default_node_port" ] && {
shunt_proxy=0
}
}
filter_rules "$(config_n_get $proxy_node $shunt_id)" "$stream" "$shunt_proxy" "$proxy_port"
}
done
!
else
#echolog " - 普通节点（${proxy_type}）..."
filter_rules "$proxy_node" "$stream"
fi
}
dns_hijack() {
nft "add rule inet fw4 dstnat meta l4proto udp ip dport 53 redirect to 53"
echolog "强制转发本机DNS端口 UDP/53 的请求[$?]"
}
add_firewall_rule() {
echolog "开始加载防火墙规则..."
gen_nftset $NFTSET_LANLIST ipv4_addr 0 "-1" $(gen_lanlist)
gen_nftset $NFTSET_VPSLIST ipv4_addr 0 0
gen_nftset $NFTSET_LANLIST6 ipv6_addr 0 "-1" $(gen_lanlist_6)
gen_nftset $NFTSET_VPSLIST6 ipv6_addr 0 0
# 忽略特殊IP段
local lan_ifname lan_ip
lan_ifname=$(uci -q -p /tmp/state get network.lan.ifname)
[ -n "$lan_ifname" ] && {
lan_ip=$(ip address show $lan_ifname | grep -w "inet" | awk '{print $2}')
lan_ip6=$(ip address show $lan_ifname | grep -w "inet6" | awk '{print $2}')
#echolog "本机IPv4网段互访直连：${lan_ip}"
#echolog "本机IPv6网段互访直连：${lan_ip6}"
[ -n "$lan_ip" ] && insert_nftset $NFTSET_LANLIST "-1" $(echo $lan_ip | sed -e "s/ /\n/g")
[ -n "$lan_ip6" ] && insert_nftset $NFTSET_LANLIST6 "-1" $(echo $lan_ip6 | sed -e "s/ /\n/g")
}
[ -n "$ISP_DNS" ] && {
#echolog "处理 ISP DNS 例外..."
for ispip in $ISP_DNS; do
insert_nftset $NFTSET_LANLIST "-1" $ispip
echolog " - [$?]追加ISP IPv4 DNS到白名单：${ispip}"
done
}
[ -n "$ISP_DNS6" ] && {
#echolog "处理 ISP IPv6 DNS 例外..."
for ispip6 in $ISP_DNS6; do
insert_nftset $NFTSET_LANLIST6 "-1" $ispip6
echolog " - [$?]追加ISP IPv6 DNS到白名单：${ispip6}"
done
}
local nftset_global_whitelist="passwall2_global_whitelist"
local nftset_global_whitelist6="passwall2_global_whitelist6"
gen_nftset $nftset_global_whitelist ipv4_addr 0 0
gen_nftset $nftset_global_whitelist6 ipv6_addr 0 0
# 过滤所有节点IP
filter_vpsip > /dev/null 2>&1 &
filter_haproxy > /dev/null 2>&1 &
# Prevent some conditions
filter_vps_addr $(config_n_get $NODE address) > /dev/null 2>&1 &
accept_icmp=$(config_t_get global_forwarding accept_icmp 0)
accept_icmpv6=$(config_t_get global_forwarding accept_icmpv6 0)
local tcp_proxy_way=$(config_t_get global_forwarding tcp_proxy_way redirect)
if [ "$tcp_proxy_way" = "redirect" ]; then
unset is_tproxy
nft_prerouting_chain="PSW2_NAT"
nft_output_chain="PSW2_OUTPUT_NAT"
elif [ "$tcp_proxy_way" = "tproxy" ]; then
is_tproxy="TPROXY"
nft_prerouting_chain="PSW2_MANGLE"
nft_output_chain="PSW2_OUTPUT_MANGLE"
fi
[ -z "$(nft list chain inet fw4 nat_output 2>/dev/null)" ] && nft "add chain inet fw4 nat_output { type nat hook output priority -1; }"
nft "add chain inet fw4 PSW2_DIVERT"
nft "flush chain inet fw4 PSW2_DIVERT"
nft "add rule inet fw4 PSW2_DIVERT meta l4proto tcp socket transparent 1 mark set 1 counter accept"
nft "add chain inet fw4 PSW2_REDIRECT"
nft "flush chain inet fw4 PSW2_REDIRECT"
nft "add rule inet fw4 dstnat jump PSW2_REDIRECT"
# for ipv4 ipv6 tproxy mark
nft "add chain inet fw4 PSW2_RULE"
nft "flush chain inet fw4 PSW2_RULE"
nft "add rule inet fw4 PSW2_RULE meta mark set ct mark counter"
nft "add rule inet fw4 PSW2_RULE meta mark 1 counter return"
nft "add rule inet fw4 PSW2_RULE tcp flags &(fin|syn|rst|ack) == syn meta mark set mark and 0x0 xor 0x1 counter"
nft "add rule inet fw4 PSW2_RULE meta l4proto udp ct state new meta mark set mark and 0x0 xor 0x1 counter"
nft "add rule inet fw4 PSW2_RULE ct mark set mark counter"
#ipv4 tproxy mode and udp
nft "add chain inet fw4 PSW2_MANGLE"
nft "flush chain inet fw4 PSW2_MANGLE"
nft "add rule inet fw4 PSW2_MANGLE ip daddr @$NFTSET_LANLIST counter return"
nft "add rule inet fw4 PSW2_MANGLE ip daddr @$NFTSET_VPSLIST counter return"
nft "add chain inet fw4 PSW2_OUTPUT_MANGLE"
nft "flush chain inet fw4 PSW2_OUTPUT_MANGLE"
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE ip daddr @$NFTSET_LANLIST counter return"
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE ip daddr @$NFTSET_VPSLIST counter return"
[ -n "$AUTO_DNS" ] && {
for auto_dns in $(echo $AUTO_DNS | tr ',' ' '); do
local dns_address=$(echo $auto_dns | awk -F '#' '{print $1}')
local dns_port=$(echo $auto_dns | awk -F '#' '{print $2}')
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE ip protocol udp ip daddr ${dns_address} $(factor ${dns_port:-53} "udp dport") counter return"
echolog " - [$?]追加直连DNS到nftables：${dns_address}:${dns_port:-53}"
done
}
[ "${WRITE_IPSET_DIRECT}" = "1" ] && nft "add rule inet fw4 PSW2_OUTPUT_MANGLE ip daddr @$nftset_global_whitelist counter return"
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE meta mark 0xff counter return"
# jump chains
nft "add rule inet fw4 mangle_prerouting meta nfproto {ipv4} counter jump PSW2_MANGLE"
insert_rule_before "inet fw4" "mangle_prerouting" "PSW2_MANGLE" "counter jump PSW2_DIVERT"
#ipv4 tcp redirect mode
[ -z "${is_tproxy}" ] && {
nft "add chain inet fw4 PSW2_NAT"
nft "flush chain inet fw4 PSW2_NAT"
nft "add rule inet fw4 PSW2_NAT ip daddr @$NFTSET_LANLIST counter return"
nft "add rule inet fw4 PSW2_NAT ip daddr @$NFTSET_VPSLIST counter return"
nft "add rule inet fw4 dstnat ip protocol tcp counter jump PSW2_NAT"
nft "add chain inet fw4 PSW2_OUTPUT_NAT"
nft "flush chain inet fw4 PSW2_OUTPUT_NAT"
nft "add rule inet fw4 PSW2_OUTPUT_NAT ip daddr @$NFTSET_LANLIST counter return"
nft "add rule inet fw4 PSW2_OUTPUT_NAT ip daddr @$NFTSET_VPSLIST counter return"
[ "${WRITE_IPSET_DIRECT}" = "1" ] && nft "add rule inet fw4 PSW2_OUTPUT_NAT ip daddr @$nftset_global_whitelist counter return"
nft "add rule inet fw4 PSW2_OUTPUT_NAT meta mark 0xff counter return"
}
#icmp ipv6-icmp redirect
if [ "$accept_icmp" = "1" ]; then
nft "add chain inet fw4 PSW2_ICMP_REDIRECT"
nft "flush chain inet fw4 PSW2_ICMP_REDIRECT"
nft "add rule inet fw4 PSW2_ICMP_REDIRECT ip daddr @$NFTSET_LANLIST counter return"
nft "add rule inet fw4 PSW2_ICMP_REDIRECT ip daddr @$NFTSET_VPSLIST counter return"
[ "${WRITE_IPSET_DIRECT}" = "1" ] && nft "add rule inet fw4 PSW2_ICMP_REDIRECT ip daddr @$nftset_global_whitelist counter return"
[ "$accept_icmpv6" = "1" ] && {
nft "add rule inet fw4 PSW2_ICMP_REDIRECT ip6 daddr @$NFTSET_LANLIST6 counter return"
nft "add rule inet fw4 PSW2_ICMP_REDIRECT ip6 daddr @$NFTSET_VPSLIST6 counter return"
[ "${WRITE_IPSET_DIRECT}" = "1" ] && nft "add rule inet fw4 PSW2_ICMP_REDIRECT ip6 daddr @$nftset_global_whitelist6 counter return"
}
nft "add rule inet fw4 dstnat meta l4proto {icmp,icmpv6} counter jump PSW2_ICMP_REDIRECT"
nft "add rule inet fw4 nat_output meta l4proto {icmp,icmpv6} counter jump PSW2_ICMP_REDIRECT"
fi
WAN_IP=$(get_wan_ip)
if [ -n "${WAN_IP}" ]; then
[ -n "${is_tproxy}" ] && nft "add rule inet fw4 PSW2_MANGLE ip daddr ${WAN_IP} counter return comment \"WAN_IP_RETURN\"" || nft "add rule inet fw4 PSW2_NAT ip daddr ${WAN_IP} counter return comment \"WAN_IP_RETURN\""
fi
unset WAN_IP
ip rule add fwmark 1 lookup 100
ip route add local 0.0.0.0/0 dev lo table 100
#ipv6 tproxy mode and udp
nft "add chain inet fw4 PSW2_MANGLE_V6"
nft "flush chain inet fw4 PSW2_MANGLE_V6"
nft "add rule inet fw4 PSW2_MANGLE_V6 ip6 daddr @$NFTSET_LANLIST6 counter return"
nft "add rule inet fw4 PSW2_MANGLE_V6 ip6 daddr @$NFTSET_VPSLIST6 counter return"
[ "${WRITE_IPSET_DIRECT}" = "1" ] && nft "add rule inet fw4 PSW2_MANGLE_V6 ip6 daddr @$nftset_global_whitelist6 counter return"
nft "add chain inet fw4 PSW2_OUTPUT_MANGLE_V6"
nft "flush chain inet fw4 PSW2_OUTPUT_MANGLE_V6"
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE_V6 ip6 daddr @$NFTSET_LANLIST6 counter return"
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE_V6 ip6 daddr @$NFTSET_VPSLIST6 counter return"
[ "${WRITE_IPSET_DIRECT}" = "1" ] && nft "add rule inet fw4 PSW2_OUTPUT_MANGLE_V6 ip6 daddr @$nftset_global_whitelist6 counter return"
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE_V6 meta mark 0xff counter return"
# jump chains
[ "$PROXY_IPV6" == "1" ] && {
nft "add rule inet fw4 mangle_prerouting meta nfproto {ipv6} counter jump PSW2_MANGLE_V6"
nft "add rule inet fw4 mangle_output meta nfproto {ipv6} counter jump PSW2_OUTPUT_MANGLE_V6 comment \"PSW2_OUTPUT_MANGLE\""
WAN6_IP=$(get_wan6_ip)
[ -n "${WAN6_IP}" ] && nft "add rule inet fw4 PSW2_MANGLE_V6 ip6 daddr ${WAN6_IP} counter return comment \"WAN6_IP_RETURN\""
unset WAN6_IP
ip -6 rule add fwmark 1 table 100
ip -6 route add local ::/0 dev lo table 100
}
# 过滤Socks节点
[ "$SOCKS_ENABLED" = "1" ] && {
local ids=$(uci show $CONFIG | grep "=socks" | awk -F '.' '{print $2}' | awk -F '=' '{print $1}')
#echolog "分析 Socks 服务所使用节点..."
local id enabled node port msg num
for id in $ids; do
enabled=$(config_n_get $id enabled 0)
[ "$enabled" == "1" ] || continue
node=$(config_n_get $id node nil)
port=$(config_n_get $id port 0)
msg="Socks 服务 [:${port}]"
if [ "$node" == "nil" ] || [ "$port" == "0" ]; then
msg="${msg} 未配置完全，略过"
else
filter_node $node TCP > /dev/null 2>&1 &
filter_node $node UDP > /dev/null 2>&1 &
fi
#echolog " - ${msg}"
done
}
[ "$ENABLED_DEFAULT_ACL" == 1 ] && {
# 过滤节点
filter_node $NODE TCP > /dev/null 2>&1 &
filter_node $NODE UDP > /dev/null 2>&1 &
TCP_LOCALHOST_PROXY=$LOCALHOST_PROXY
UDP_LOCALHOST_PROXY=$LOCALHOST_PROXY
msg="【路由器本机】，"
[ "$TCP_NO_REDIR_PORTS" != "disable" ] && {
nft "add rule inet fw4 $nft_output_chain ip protocol tcp $(factor $TCP_NO_REDIR_PORTS "tcp dport") counter return"
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE_V6 meta l4proto tcp $(factor $TCP_NO_REDIR_PORTS "tcp dport") counter return"
if [ "$TCP_NO_REDIR_PORTS" != "1:65535" ]; then
echolog " - ${msg}不代理 TCP 端口[${TCP_NO_REDIR_PORTS}]"
else
unset TCP_LOCALHOST_PROXY
echolog " - ${msg}不代理所有 TCP"
fi
}
[ "$UDP_NO_REDIR_PORTS" != "disable" ] && {
nft add rule inet fw4 PSW2_OUTPUT_MANGLE ip protocol udp $(factor $UDP_NO_REDIR_PORTS "udp dport") counter return
nft add rule inet fw4 PSW2_OUTPUT_MANGLE_V6 meta l4proto udp $(factor $UDP_NO_REDIR_PORTS "udp dport") counter return
if [ "$UDP_NO_REDIR_PORTS" != "1:65535" ]; then
echolog " - ${msg}不代理 UDP 端口[${UDP_NO_REDIR_PORTS}]"
else
unset UDP_LOCALHOST_PROXY
echolog " - ${msg}不代理所有 UDP"
fi
}
# 加载路由器自身代理 TCP
if [ "$NODE" != "nil" ] && [ "$TCP_LOCALHOST_PROXY" = "1" ]; then
[ "$accept_icmp" = "1" ] && {
nft "add rule inet fw4 PSW2_ICMP_REDIRECT oif lo ip protocol icmp ip daddr $FAKE_IP counter redirect"
nft "add rule inet fw4 PSW2_ICMP_REDIRECT oif lo ip protocol icmp counter redirect"
nft "add rule inet fw4 PSW2_ICMP_REDIRECT oif lo ip protocol icmp counter return"
}
[ "$accept_icmpv6" = "1" ] && {
nft "add rule inet fw4 PSW2_ICMP_REDIRECT oif lo meta l4proto icmpv6 ip6 daddr $FAKE_IP_6 counter redirect"
nft "add rule inet fw4 PSW2_ICMP_REDIRECT oif lo meta l4proto icmpv6 counter redirect"
nft "add rule inet fw4 PSW2_ICMP_REDIRECT oif lo meta l4proto icmpv6 counter return"
}
if [ -z "${is_tproxy}" ]; then
nft "add rule inet fw4 PSW2_OUTPUT_NAT ip protocol tcp ip daddr $FAKE_IP $(REDIRECT $REDIR_PORT)"
nft "add rule inet fw4 PSW2_OUTPUT_NAT ip protocol tcp $(factor $TCP_REDIR_PORTS "tcp dport") $(REDIRECT $REDIR_PORT)"
nft "add rule inet fw4 nat_output ip protocol tcp counter jump PSW2_OUTPUT_NAT"
else
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE ip protocol tcp ip daddr $FAKE_IP counter jump PSW2_RULE"
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE ip protocol tcp $(factor $TCP_REDIR_PORTS "tcp dport") jump PSW2_RULE"
nft "add rule inet fw4 PSW2_MANGLE ip protocol tcp iif lo $(REDIRECT $REDIR_PORT TPROXY4) comment \"本机\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol tcp iif lo counter return comment \"本机\""
nft "add rule inet fw4 mangle_output ip protocol tcp counter jump PSW2_OUTPUT_MANGLE comment \"PSW2_OUTPUT_MANGLE\""
fi
[ "$PROXY_IPV6" == "1" ] && {
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE_V6 meta l4proto tcp ip6 daddr $FAKE_IP_6 jump PSW2_RULE"
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE_V6 meta l4proto tcp $(factor $TCP_REDIR_PORTS "tcp dport") jump PSW2_RULE"
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto tcp iif lo $(REDIRECT $REDIR_PORT TPROXY) comment \"本机\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto tcp iif lo counter return comment \"本机\""
}
for iface in $(ls ${TMP_IFACE_PATH}); do
nft "insert rule inet fw4 $nft_output_chain ip protocol tcp oif $iface counter return"
nft "insert rule inet fw4 PSW2_OUTPUT_MANGLE_V6 ip protocol tcp oif $iface counter return"
done
fi
# 加载路由器自身代理 UDP
if [ "$NODE" != "nil" ] && [ "$UDP_LOCALHOST_PROXY" = "1" ]; then
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE ip protocol udp ip daddr $FAKE_IP counter jump PSW2_RULE"
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE ip protocol udp $(factor $UDP_REDIR_PORTS "udp dport") jump PSW2_RULE"
nft "add rule inet fw4 PSW2_MANGLE ip protocol udp iif lo $(REDIRECT $REDIR_PORT TPROXY4) comment \"本机\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol udp iif lo counter return comment \"本机\""
nft "add rule inet fw4 mangle_output ip protocol udp counter jump PSW2_OUTPUT_MANGLE comment \"PSW2_OUTPUT_MANGLE\""
if [ "$PROXY_IPV6_UDP" == "1" ]; then
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE_V6 meta l4proto udp ip6 daddr $FAKE_IP_6 jump PSW2_RULE"
nft "add rule inet fw4 PSW2_OUTPUT_MANGLE_V6 meta l4proto udp $(factor $UDP_REDIR_PORTS "udp dport") jump PSW2_RULE"
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp iif lo $(REDIRECT $REDIR_PORT TPROXY) comment \"本机\""
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp iif lo counter return comment \"本机\""
fi
for iface in $(ls ${TMP_IFACE_PATH}); do
nft "insert rule inet fw4 $nft_output_chain ip protocol udp oif $iface counter return"
nft "insert rule inet fw4 PSW2_OUTPUT_MANGLE_V6 ip protocol udp oif $iface counter return"
done
fi
nft "add rule inet fw4 mangle_output oif lo counter return comment \"PSW2_OUTPUT_MANGLE\""
nft "add rule inet fw4 mangle_output meta mark 1 counter return comment \"PSW2_OUTPUT_MANGLE\""
nft "add rule inet fw4 PSW2_MANGLE ip protocol udp udp dport 53 counter return"
nft "add rule inet fw4 PSW2_MANGLE_V6 meta l4proto udp udp dport 53 counter return"
}
# 加载ACLS
load_acl
[ -n "${is_tproxy}" -o -n "${udp_flag}" ] && {
bridge_nf_ipt=$(sysctl -e -n net.bridge.bridge-nf-call-iptables)
echo -n $bridge_nf_ipt > $TMP_PATH/bridge_nf_ipt
sysctl -w net.bridge.bridge-nf-call-iptables=0 >/dev/null 2>&1
[ "$PROXY_IPV6" == "1" ] && {
bridge_nf_ip6t=$(sysctl -e -n net.bridge.bridge-nf-call-ip6tables)
echo -n $bridge_nf_ip6t > $TMP_PATH/bridge_nf_ip6t
sysctl -w net.bridge.bridge-nf-call-ip6tables=0 >/dev/null 2>&1
}
}
echolog "防火墙规则加载完成！"
}
del_firewall_rule() {
for nft in "forward" "dstnat" "srcnat" "nat_output" "mangle_prerouting" "mangle_output"; do
local handles=$(nft -a list chain inet fw4 ${nft} 2>/dev/null | grep -E "PSW2_" | awk -F '# handle ' '{print$2}')
for handle in $handles; do
nft delete rule inet fw4 ${nft} handle ${handle} 2>/dev/null
done
done
for handle in $(nft -a list chains | grep -E "chain PSW2_" | grep -v "PSW2_RULE" | awk -F '# handle ' '{print$2}'); do
nft delete chain inet fw4 handle ${handle} 2>/dev/null
done
# Need to be removed at the end, otherwise it will show "Resource busy"
nft delete chain inet fw4 handle $(nft -a list chains | grep -E "PSW2_RULE" | awk -F '# handle ' '{print$2}') 2>/dev/null
ip rule del fwmark 1 lookup 100 2>/dev/null
ip route del local 0.0.0.0/0 dev lo table 100 2>/dev/null
ip -6 rule del fwmark 1 table 100 2>/dev/null
ip -6 route del local ::/0 dev lo table 100 2>/dev/null
destroy_nftset $NFTSET_LANLIST
destroy_nftset $NFTSET_VPSLIST
destroy_nftset $NFTSET_LANLIST6
destroy_nftset $NFTSET_VPSLIST6
$DIR/app.sh echolog "删除nftables防火墙规则完成。"
}
flush_nftset() {
$DIR/app.sh echolog "清空 NFTSET。"
for _name in $(nft -a list sets | grep -E "passwall2" | awk -F 'set ' '{print $2}' | awk '{print $1}'); do
destroy_nftset ${_name}
done
}
flush_nftset_reload() {
del_firewall_rule
flush_nftset
rm -rf /tmp/singbox_passwall2_*
/etc/init.d/passwall2 reload
}
flush_include() {
echo '#!/bin/sh' >$FWI
}
gen_include() {
local nft_chain_file=$TMP_PATH/PSW2_RULE.nft
local nft_set_file=$TMP_PATH/PSW2_SETS.nft
echo "#!/usr/sbin/nft -f" > $nft_chain_file
echo "#!/usr/sbin/nft -f" > $nft_set_file
for chain in $(nft -a list chains | grep -E "chain PSW2_" | awk -F ' ' '{print$2}'); do
nft list chain inet fw4 ${chain} >> $nft_chain_file
done
for set_name in $(nft -a list sets | grep -E "set passwall2_" | awk -F ' ' '{print$2}'); do
nft list set inet fw4 ${set_name} >> $nft_set_file
done
local __nft=" "
__nft=$(cat <<- EOF
[ -z "\$(nft list sets 2>/dev/null | grep "passwall2_")" ] && nft -f ${nft_set_file}
[ -z "\$(nft list chain inet fw4 nat_output 2>/dev/null)" ] && nft "add chain inet fw4 nat_output { type nat hook output priority -1; }"
nft -f ${nft_chain_file}
nft "add rule inet fw4 dstnat jump PSW2_REDIRECT"
[ "$accept_icmp" == "1" ] && {
nft "add rule inet fw4 dstnat meta l4proto {icmp,icmpv6} counter jump PSW2_ICMP_REDIRECT"
nft "add rule inet fw4 nat_output meta l4proto {icmp,icmpv6} counter jump PSW2_ICMP_REDIRECT"
}
[ -z "${is_tproxy}" ] && {
PR_INDEX=\$(sh ${MY_PATH} RULE_LAST_INDEX "inet fw4" PSW2_NAT WAN_IP_RETURN -1)
if [ \$PR_INDEX -ge 0 ]; then
WAN_IP=\$(sh ${MY_PATH} get_wan_ip)
[ ! -z "\${WAN_IP}" ] && nft "replace rule inet fw4 PSW2_NAT handle \$PR_INDEX ip daddr "\${WAN_IP}" counter return comment \"WAN_IP_RETURN\""
fi
nft "add rule inet fw4 dstnat ip protocol tcp counter jump PSW2_NAT"
nft "add rule inet fw4 nat_output ip protocol tcp counter jump PSW2_OUTPUT_NAT"
}
[ -n "${is_tproxy}" ] && {
PR_INDEX=\$(sh ${MY_PATH} RULE_LAST_INDEX "inet fw4" PSW2_MANGLE WAN_IP_RETURN -1)
if [ \$PR_INDEX -ge 0 ]; then
WAN_IP=\$(sh ${MY_PATH} get_wan_ip)
[ ! -z "\${WAN_IP}" ] && nft "replace rule inet fw4 PSW2_MANGLE handle \$PR_INDEX ip daddr "\${WAN_IP}" counter return comment \"WAN_IP_RETURN\""
fi
nft "add rule inet fw4 mangle_prerouting meta nfproto {ipv4} counter jump PSW2_MANGLE"
nft "add rule inet fw4 mangle_output ip protocol tcp counter jump PSW2_OUTPUT_MANGLE comment \"PSW2_OUTPUT_MANGLE\""
}
\$(sh ${MY_PATH} insert_rule_before "inet fw4" "mangle_prerouting" "PSW2_MANGLE" "counter jump PSW2_DIVERT")
[ "$UDP_NODE" != "nil" -o "$TCP_UDP" = "1" ] && nft "add rule inet fw4 mangle_output ip protocol udp counter jump PSW2_OUTPUT_MANGLE comment \"PSW2_OUTPUT_MANGLE\""
[ "$PROXY_IPV6" == "1" ] && {
PR_INDEX=\$(sh ${MY_PATH} RULE_LAST_INDEX "inet fw4" PSW2_MANGLE_V6 WAN6_IP_RETURN -1)
if [ \$PR_INDEX -ge 0 ]; then
WAN6_IP=\$(sh ${MY_PATH} get_wan6_ip)
[ ! -z "\${WAN_IP}" ] && nft "replace rule inet fw4 PSW2_MANGLE_V6 handle \$PR_INDEX ip6 daddr "\${WAN6_IP}" counter return comment \"WAN6_IP_RETURN\""
fi
nft "add rule inet fw4 mangle_prerouting meta nfproto {ipv6} counter jump PSW2_MANGLE_V6"