File size: 5,284 Bytes
17e971c | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 | #!/bin/bash
create_chain() {
# 创建iptables链
# params：表名 链名
local table=$1
local chain=$2
if ! iptables -t "$table" -n -L "$chain" > /dev/null 2>&1; then
iptables -t "$table" -N "$chain"
echo "Created chain $chain in table $table"
else
echo "Chain $chain already exists in table $table"
fi
}
insert_input_output_rules() {
# 在指定的表的链中插入子链
# params："表名:目标链名:需要插入的链"
local rules=("$@")
for rule in "${rules[@]}"; do
IFS=':' read -r table chain target <<< "$rule"
if ! iptables -t "$table" -C "$chain" -j "$target" > /dev/null 2>&1; then
iptables -t "$table" -A "$chain" -j "$target"
echo "Inserted $target to $chain in table $table"
else
echo "$target already in $chain in table $table"
fi
done
}
add_jump_rules() {
# 在指定的表的链中添加跳转规则
# params：表名 目标链名 需要跳转的链
local table=$1
local target_chain=$2
shift 2
local chains=("$@")
for chain in "${chains[@]}"; do
if ! iptables -t "$table" -C "$target_chain" -j "$chain" > /dev/null 2>&1; then
iptables -t "$table" -A "$target_chain" -j "$chain"
echo "Added $chain to $target_chain in table $table"
else
echo "$chain already in $target_chain in table $table"
fi
done
}
create_ipset() {
local ipset_name=$1
if ! ipset list "$ipset_name" > /dev/null 2>&1; then
ipset create "$ipset_name" hash:net maxelem 100000 timeout 0
echo "Created ipset $ipset_name"
else
echo "ipset $ipset_name already exists"
fi
}
add_ipset_rules() {
local rules=("$@")
for rule in "${rules[@]}"; do
IFS=':' read -r chain action direction ipset_name <<< "$rule"
if ! iptables -C "$chain" -m set --match-set "$ipset_name" "$direction" -j "$action" > /dev/null 2>&1; then
iptables -I "$chain" 1 -m set --match-set "$ipset_name" "$direction" -j "$action"
echo "Added $action rule for $ipset_name ($direction) in $chain"
else
echo "$action rule for $ipset_name ($direction) already in $chain"
fi
done
}
# 函数：创建systemd服务
create_systemd_service() {
local exec_path="/www/server/panel/pyenv/bin/python3 /www/server/panel/script/BT-FirewallServices.py"
local service_file="/etc/systemd/system/BT-FirewallServices.service"
if [ ! -f "$service_file" ]; then
/www/server/panel/pyenv/bin/python3 -c "import os,sys; os.chdir('/www/server/panel/'); sys.path.insert(0, 'class/'); sys.path.insert(0, '/www/server/panel/'); import public; public.stop_syssafe();"
cat << EOF > "$service_file"
[Unit]
Description=Firewall and System Event Listener Service
After=network.target
[Service]
ExecStart=$exec_path start
ExecReload=$exec_path reload
ExecStop=$exec_path stop
User=root
Type=simple
[Install]
WantedBy=multi-user.target
EOF
systemctl daemon-reload
systemctl enable BT-FirewallServices.service
${exec_path} save
systemctl start BT-FirewallServices.service
echo "Systemd service created and started"
/www/server/panel/pyenv/bin/python3 -c "import os,sys; os.chdir('/www/server/panel/'); sys.path.insert(0, 'class/'); sys.path.insert(0, '/www/server/panel/'); import public; public.start_syssafe();"
else
echo "Systemd service already exists"
fi
}
main() {
# 所有需要创建接管的子链
local chains=(
"filter:IN_BT"
"filter:IN_BT_log"
"filter:IN_BT_user_ip"
"filter:IN_BT_ip"
"filter:IN_BT_user_port"
"filter:OUT_BT"
"filter:OUT_BT_user_ip"
"filter:OUT_BT_user_port"
"filter:IN_BT_Country"
"nat:FORWARD_BT"
)
for chain in "${chains[@]}"; do
IFS=':' read -r table chain_name <<< "$chain"
create_chain "$table" "$chain_name"
done
# 插入接管的子链
local rules=(
"filter:INPUT:IN_BT"
"filter:IN_BT:IN_BT_log"
"filter:IN_BT:IN_BT_user_ip"
"filter:IN_BT:IN_BT_ip"
"filter:IN_BT:IN_BT_user_port"
"filter:IN_BT_ip:IN_BT_Country"
"filter:OUTPUT:OUT_BT"
"filter:OUT_BT:OUT_BT_user_ip"
"filter:OUT_BT:OUT_BT_user_port"
"nat:PREROUTING:FORWARD_BT"
)
insert_input_output_rules "${rules[@]}"
# ipset集合
local ipsets=(
"in_bt_user_accept_ipset"
"in_bt_user_drop_ipset"
"out_bt_user_accept_ipset"
"out_bt_user_drop_ipset"
)
for ipset_name in "${ipsets[@]}"; do
create_ipset "$ipset_name"
done
local ipset_rules=(
"IN_BT_user_ip:ACCEPT:src:in_bt_user_accept_ipset"
"IN_BT_user_ip:DROP:src:in_bt_user_drop_ipset"
"OUT_BT_user_ip:ACCEPT:dst:out_bt_user_accept_ipset"
"OUT_BT_user_ip:DROP:dst:out_bt_user_drop_ipset"
)
add_ipset_rules "${ipset_rules[@]}"
create_systemd_service
systemctl reload BT-FirewallServices
echo "防火墙初始化完毕..."
}
if [ $# -eq 1 ]; then
if [ "$1" = "clean" ]; then
iptables -F IN_BT
iptables -F OUT_BT
fi
else
main
fi |