sushen339
742 lines
25 KiB
Bash
742 lines
25 KiB
Bash
#!/bin/sh
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# ================= 配置区域 =================
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LOG_FILE="/var/log/block-ip.log"
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MAX_LOG_SIZE=10485760 # 10MB (单位:字节)
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MAX_RETRIES=3
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BAN_TIME="24h"
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RECORD_DIR="/tmp/block_ip_counts"
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PERSIST_FILE="/etc/block-ip.list"
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COUNTRY_FILE="/etc/block-ip.country"
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WHITELIST_FILE="/etc/block-ip.whitelist"
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INSTALL_PATH="/usr/local/bin/block-ip"
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NFT_TABLE="inet filter"
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NFT_SET="blacklist"
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NFT_SET_V6="blacklist_v6"
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NFT_WHITELIST="whitelist"
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NFT_WHITELIST_V6="whitelist_v6"
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export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
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# ===========================================
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# --- 颜色 ---
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C_RESET="\033[0m"
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C_GREEN="\033[32m"
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C_CYAN="\033[36m"
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C_YELLOW="\033[33m"
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C_RED="\033[31m"
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msg() { printf "%b%s%b\n" "$1" "$2" "$C_RESET"; }
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log() {
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rotate_log
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echo "[$(date '+%Y-%m-%d %H:%M:%S')] $1" >> "$LOG_FILE"
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}
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check_root() { [ "$(id -u)" -ne 0 ] && msg "$C_RED" "❌ 需 root 权限" && exit 1; }
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get_country_name() {
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case "$1" in
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CN) echo "中国" ;;
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US) echo "美国" ;;
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RU) echo "俄罗斯" ;;
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NL) echo "荷兰" ;;
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DE) echo "德国" ;;
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GB) echo "英国" ;;
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FR) echo "法国" ;;
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JP) echo "日本" ;;
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KR) echo "韩国" ;;
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SG) echo "新加坡" ;;
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HK) echo "香港" ;;
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TW) echo "台湾" ;;
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IN) echo "印度" ;;
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BR) echo "巴西" ;;
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CA) echo "加拿大" ;;
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AU) echo "澳大利亚" ;;
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IT) echo "意大利" ;;
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ES) echo "西班牙" ;;
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SE) echo "瑞典" ;;
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PL) echo "波兰" ;;
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UA) echo "乌克兰" ;;
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TR) echo "土耳其" ;;
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ID) echo "印度尼西亚" ;;
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TH) echo "泰国" ;;
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VN) echo "越南" ;;
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MX) echo "墨西哥" ;;
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AR) echo "阿根廷" ;;
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CL) echo "智利" ;;
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RO) echo "罗马尼亚" ;;
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CZ) echo "捷克" ;;
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*) echo "$1" ;;
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esac
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}
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rotate_log() {
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[ ! -f "$LOG_FILE" ] && return
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LOG_SIZE=$(stat -f%z "$LOG_FILE" 2>/dev/null || stat -c%s "$LOG_FILE" 2>/dev/null || echo 0)
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if [ "$LOG_SIZE" -ge "$MAX_LOG_SIZE" ]; then
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[ -f "${LOG_FILE}.1" ] && rm -f "${LOG_FILE}.1"
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mv "$LOG_FILE" "${LOG_FILE}.1"
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touch "$LOG_FILE" && chmod 666 "$LOG_FILE"
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fi
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}
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is_ipv6() {
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# 移除CIDR后缀再判断
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IP="${1%%/*}"
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echo "$IP" | grep -q ':'
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}
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get_ip() {
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if [ -n "$PAM_RHOST" ]; then echo "$PAM_RHOST"
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elif [ -n "$RHOST" ]; then echo "$RHOST"
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else echo ""; fi
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}
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check_and_install_env() {
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if ! command -v nft >/dev/null 2>&1; then
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. /etc/os-release
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case "$ID" in
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debian|ubuntu|kali) apt-get update && apt-get install -y nftables ;;
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centos|rhel|alma) dnf install -y nftables || yum install -y nftables ;;
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alpine) apk add nftables ;;
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*) return 1 ;;
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esac
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fi
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nft list tables >/dev/null 2>&1 || modprobe nf_tables >/dev/null 2>&1
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[ -x "$(command -v systemctl)" ] && systemctl enable --now nftables >/dev/null 2>&1
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return 0
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}
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# --- 封禁 ---
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ban_ip() {
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TARGET_IP="$1"
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SAVE_DISK="$2"
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# 标准化IP格式：单IP自动添加/32或/128
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case "$TARGET_IP" in
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*/*) ELEMENT="$TARGET_IP" ;; # 已包含CIDR
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*:*) ELEMENT="$TARGET_IP/128" ;; # IPv6单IP
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*) ELEMENT="$TARGET_IP/32" ;; # IPv4单IP
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esac
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[ -n "$BAN_TIME" ] && ELEMENT="$ELEMENT timeout $BAN_TIME"
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# 根据IP类型选择不同的集合
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if is_ipv6 "$TARGET_IP"; then
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SET_NAME="$NFT_SET_V6"
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else
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SET_NAME="$NFT_SET"
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fi
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OUT=$(nft add element $NFT_TABLE $SET_NAME "{ $ELEMENT }" 2>&1)
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if echo "$OUT" | grep -q "No such file"; then
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init_nft_rules >/dev/null 2>&1
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nft add element $NFT_TABLE $SET_NAME "{ $ELEMENT }" >/dev/null 2>&1
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fi
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# 查询并记录国家信息（仅IPv4且不是CIDR）
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COUNTRY_CODE=""
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BASE_IP="${TARGET_IP%%/*}"
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if [ "$SAVE_DISK" -eq 1 ] && ! is_ipv6 "$BASE_IP" && ! echo "$TARGET_IP" | grep -q '/'; then
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if command -v curl >/dev/null 2>&1; then
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COUNTRY_CODE=$(curl -s --max-time 2 "https://ipinfo.io/$BASE_IP/country" 2>/dev/null | tr -d '\n\r ')
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if [ -n "$COUNTRY_CODE" ] && [ ${#COUNTRY_CODE} -eq 2 ]; then
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# 检查是否已存在记录
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if ! grep -q "^$BASE_IP|" "$COUNTRY_FILE" 2>/dev/null; then
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echo "$BASE_IP|$COUNTRY_CODE" >> "$COUNTRY_FILE"
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fi
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fi
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fi
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fi
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if [ "$SAVE_DISK" -eq 1 ]; then
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if ! grep -q "^$TARGET_IP$" "$PERSIST_FILE" 2>/dev/null; then
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echo "$TARGET_IP" >> "$PERSIST_FILE"
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if [ -n "$COUNTRY_CODE" ]; then
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COUNTRY_NAME=$(get_country_name "$COUNTRY_CODE")
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log "[执行封禁] IP=$TARGET_IP 国家=$COUNTRY_NAME 已封禁"
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else
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log "[执行封禁] IP=$TARGET_IP 已封禁"
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fi
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fi
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elif [ "$SAVE_DISK" -ne 2 ]; then
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log "[执行封禁] IP=$TARGET_IP 已封禁"
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fi
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}
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init_nft_rules() {
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nft add table $NFT_TABLE 2>/dev/null
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# 创建黑名单集合
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nft add set $NFT_TABLE $NFT_SET "{ type ipv4_addr; flags interval,timeout; }" 2>/dev/null
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nft add set $NFT_TABLE $NFT_SET_V6 "{ type ipv6_addr; flags interval,timeout; }" 2>/dev/null
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# 创建白名单集合（无超时）
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nft add set $NFT_TABLE $NFT_WHITELIST "{ type ipv4_addr; flags interval; }" 2>/dev/null
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nft add set $NFT_TABLE $NFT_WHITELIST_V6 "{ type ipv6_addr; flags interval; }" 2>/dev/null
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nft add chain $NFT_TABLE input "{ type filter hook input priority 0; }" 2>/dev/null
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# 白名单规则（优先级最高，先匹配先返回）
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nft list chain $NFT_TABLE input | grep -q "@$NFT_WHITELIST" || \
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nft insert rule $NFT_TABLE input ip saddr @"$NFT_WHITELIST" accept
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nft list chain $NFT_TABLE input | grep -q "@$NFT_WHITELIST_V6" || \
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nft insert rule $NFT_TABLE input ip6 saddr @"$NFT_WHITELIST_V6" accept
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# 黑名单规则
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nft list chain $NFT_TABLE input | grep -q "@$NFT_SET" || \
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nft insert rule $NFT_TABLE input ip saddr @"$NFT_SET" drop
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nft list chain $NFT_TABLE input | grep -q "@$NFT_SET_V6" || \
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nft insert rule $NFT_TABLE input ip6 saddr @"$NFT_SET_V6" drop
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}
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# --- 列表与统计 ---
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do_list() {
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# 数据获取与清洗
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RAW_V4=$(nft list set $NFT_TABLE $NFT_SET 2>/dev/null)
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RAW_V6=$(nft list set $NFT_TABLE $NFT_SET_V6 2>/dev/null)
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RAW="$RAW_V4
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$RAW_V6"
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CLEAN_DATA=$(echo "$RAW" | sed 's/,/\n/g' | sed 's/elements = {//g; s/}//g' | \
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awk '{
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for(i=1;i<=NF;i++) {
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if($i=="expires") {
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time=$(i+1); gsub("ms","",time)
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print $1, time
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}
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}
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}')
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IP_LIST=$(echo "$CLEAN_DATA" | awk '{print $1}')
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IP_V4_LIST=$(echo "$IP_LIST" | grep -v ':' || true)
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IP_V6_LIST=$(echo "$IP_LIST" | grep ':' || true)
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NFT_COUNT=0
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[ -n "$CLEAN_DATA" ] && NFT_COUNT=$(echo "$CLEAN_DATA" | awk 'NF>0' | wc -l)
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if [ -f "$PERSIST_FILE" ]; then LOCAL_COUNT=$(wc -l < "$PERSIST_FILE"); else LOCAL_COUNT=0; fi
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# 概览
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msg "$C_CYAN" "=== 🛡️ Block-IP 防护概览 ==="
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printf "当前生效: %b%s%b 条 | 本地记录: %b%s%b 条\n" "$C_GREEN" "$NFT_COUNT" "$C_RESET" "$C_YELLOW" "$LOCAL_COUNT" "$C_RESET"
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echo ""
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# 活跃列表（按剩余时间降序，显示最新封禁的5个）
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msg "$C_CYAN" "=== 🔥 活跃封禁列表 (最新 5 条) ==="
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if [ "$NFT_COUNT" -eq 0 ]; then
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echo "(目前没有被封禁的 IP)"
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else
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printf "%b%-45s %-15s%b\n" "$C_YELLOW" "IP 地址" "剩余时间" "$C_RESET"
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echo "--------------------------------------------------------------"
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echo "$CLEAN_DATA" | sort -t' ' -k2 -r | head -n 5 | awk '{printf "%-45s %s\n", $1, $2}'
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[ "$NFT_COUNT" -gt 5 ] && echo "... (还有 $((NFT_COUNT - 5)) 条未显示)"
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fi
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echo ""
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# 智能IP段聚合统计
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msg "$C_CYAN" "=== 📊 攻击源聚合统计 (自动识别 IP 段) ==="
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if [ "$NFT_COUNT" -gt 0 ]; then
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V6_COUNT=0
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[ -n "$IP_V6_LIST" ] && V6_COUNT=$(echo "$IP_V6_LIST" | awk 'NF>0' | wc -l)
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HAS_OUTPUT=0
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# 收集聚合数据
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TEMP_AGG_FILE="/tmp/block_ip_agg_$$"
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: > "$TEMP_AGG_FILE"
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# 收集 /24 聚合
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echo "$IP_V4_LIST" | cut -d. -f1-3 | sort | uniq -c | awk '$1>=2 {split($2,a,"."); printf "%d|%s|24|%s\n", $1, $2, a[1]}' >> "$TEMP_AGG_FILE"
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# 收集 /16 聚合
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echo "$IP_V4_LIST" | cut -d. -f1-2 | sort | uniq -c | awk '$1>=2 {split($2,a,"."); printf "%d|%s|16|%s\n", $1, $2, a[1]}' >> "$TEMP_AGG_FILE"
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# 收集 /8 聚合
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echo "$IP_V4_LIST" | cut -d. -f1 | sort | uniq -c | awk '$1>=2 {printf "%d|%s|8|%s\n", $1, $2, $2}' >> "$TEMP_AGG_FILE"
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# 去重: 子段数量等于父段时隐藏父段
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TEMP_FILTER="/tmp/block_ip_filter_$$"
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: > "$TEMP_FILTER"
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while IFS='|' read -r count subnet mask a_seg; do
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[ -z "$count" ] && continue
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SKIP=0
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case "$mask" in
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8)
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if grep -E "^$count\|$subnet\.[0-9]+(\.[0-9]+)?\|(16|24)\|" "$TEMP_AGG_FILE" >/dev/null 2>&1; then
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SKIP=1
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fi
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;;
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16)
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if grep -E "^$count\|$subnet\.[0-9]+\|24\|" "$TEMP_AGG_FILE" >/dev/null 2>&1; then
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SKIP=1
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fi
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;;
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esac
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[ "$SKIP" -eq 0 ] && echo "$count|$subnet|$mask|$a_seg" >> "$TEMP_FILTER"
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done < "$TEMP_AGG_FILE"
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# 按数量降序,然后按A段分组,最后按掩码升序(同组内大段优先)
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SORTED_AGGS=$(sort -t'|' -k1,1rn -k4,4n -k3,3n "$TEMP_FILTER")
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rm -f "$TEMP_AGG_FILE" "$TEMP_FILTER"
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# 输出所有聚合并收集已统计的子网
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TEMP_SUBNETS="/tmp/block_ip_subnets_$$"
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: > "$TEMP_SUBNETS"
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if [ -n "$SORTED_AGGS" ]; then
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echo "$SORTED_AGGS" | while IFS='|' read -r count subnet mask _; do
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[ -z "$count" ] && continue
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# 输出该段
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case "$mask" in
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8) printf " - %-18s %b(%s 个)%b\n" "${subnet}.0.0.0/8" "$C_RED" "$count" "$C_RESET" ;;
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16) printf " - %-18s %b(%s 个)%b\n" "${subnet}.0.0/16" "$C_RED" "$count" "$C_RESET" ;;
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24) printf " - %-18s %b(%s 个)%b\n" "${subnet}.0/24" "$C_RED" "$count" "$C_RESET" ;;
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esac
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echo "$subnet" >> "$TEMP_SUBNETS"
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done
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HAS_OUTPUT=1
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fi
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# 统计未被任何段包含的散乱IP
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REMAIN_LIST="$IP_V4_LIST"
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if [ -f "$TEMP_SUBNETS" ] && [ -s "$TEMP_SUBNETS" ]; then
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while IFS= read -r subnet; do
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[ -n "$subnet" ] && REMAIN_LIST=$(echo "$REMAIN_LIST" | grep -v "^$subnet\." || true)
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done < "$TEMP_SUBNETS"
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fi
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rm -f "$TEMP_SUBNETS"
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# 散乱IP统计
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REMAIN_COUNT=0
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if [ -n "$REMAIN_LIST" ]; then
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REMAIN_COUNT=$(echo "$REMAIN_LIST" | awk 'NF>0' | wc -l)
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fi
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if [ "$HAS_OUTPUT" -eq 1 ]; then
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[ "$REMAIN_COUNT" -gt 0 ] && echo " - (其他散乱分布 IPv4) ($REMAIN_COUNT 个)"
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else
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echo "(无数据)"
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fi
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# IPv6统计
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if [ "$V6_COUNT" -gt 0 ]; then
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echo " - (IPv6 地址) ($V6_COUNT 个)"
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fi
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else
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echo "(无数据)"
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fi
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echo ""
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# 国家统计
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msg "$C_CYAN" "=== 🌍 攻击源国家/地区统计 ==="
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if [ -f "$COUNTRY_FILE" ] && [ -s "$COUNTRY_FILE" ]; then
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# 直接统计country文件中的国家代码
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cut -d'|' -f2 "$COUNTRY_FILE" | sort | uniq -c | sort -rn | while read -r count code; do
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[ -n "$count" ] && [ -n "$code" ] && {
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COUNTRY_NAME=$(get_country_name "$code")
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printf " - %-15s %b(%s 个)%b\n" "$COUNTRY_NAME" "$C_RED" "$count" "$C_RESET"
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}
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done
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else
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echo "(暂无国家信息)"
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fi
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echo ""
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# 最新日志
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msg "$C_CYAN" "=== 📝 最新拦截日志 (Last 10) ==="
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if [ -f "$LOG_FILE" ]; then tail -n 10 "$LOG_FILE"; else echo "(暂无日志)"; fi
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}
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do_show() {
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msg "$C_CYAN" "=== 📋 本地持久化封禁列表 ==="
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if [ ! -f "$PERSIST_FILE" ] || [ ! -s "$PERSIST_FILE" ]; then
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echo "(暂无持久化记录)"
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return
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fi
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TOTAL=$(wc -l < "$PERSIST_FILE")
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IPV4_COUNT=$(grep -c -v ':' "$PERSIST_FILE" 2>/dev/null || echo 0)
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IPV6_COUNT=$(grep -c ':' "$PERSIST_FILE" 2>/dev/null || echo 0)
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printf "总计: %b%s%b 条 | IPv4: %b%s%b 条 | IPv6: %b%s%b 条\n\n" \
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"$C_GREEN" "$TOTAL" "$C_RESET" \
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"$C_CYAN" "$IPV4_COUNT" "$C_RESET" \
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"$C_YELLOW" "$IPV6_COUNT" "$C_RESET"
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printf "%b%-45s%b\n" "$C_YELLOW" "IP 地址" "$C_RESET"
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echo "---------------------------------------------"
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awk '{printf "%-45s\n", $1}' "$PERSIST_FILE"
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echo ""
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msg "$C_CYAN" "📌 文件位置: $PERSIST_FILE"
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}
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do_vip_add() {
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INPUT="$1"
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# 验证输入格式
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case "$INPUT" in
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*/*) # CIDR格式
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IP="${INPUT%%/*}"
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MASK="${INPUT##*/}"
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if ! echo "$MASK" | grep -qE '^[0-9]+$'; then
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msg "$C_RED" "❌ 无效的CIDR格式: $INPUT"
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exit 1
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fi
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;;
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*:*|*.*.*.*) # IPv6或IPv4单IP
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;;
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*)
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msg "$C_RED" "❌ 无效的IP格式: $INPUT"
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exit 1
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;;
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esac
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# 标准化格式
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case "$INPUT" in
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*/*) ELEMENT="$INPUT" ;; # 已包含CIDR
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*:*) ELEMENT="$INPUT/128" ;; # IPv6单IP
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*) ELEMENT="$INPUT/32" ;; # IPv4单IP
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esac
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# 添加到nftables白名单
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if is_ipv6 "$INPUT"; then
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SET_NAME="$NFT_WHITELIST_V6"
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|
else
|
|
SET_NAME="$NFT_WHITELIST"
|
|
fi
|
|
|
|
OUT=$(nft add element $NFT_TABLE $SET_NAME "{ $ELEMENT }" 2>&1)
|
|
if echo "$OUT" | grep -q "No such file"; then
|
|
init_nft_rules >/dev/null 2>&1
|
|
nft add element $NFT_TABLE $SET_NAME "{ $ELEMENT }" >/dev/null 2>&1
|
|
fi
|
|
|
|
# 保存到持久化文件
|
|
if ! grep -q "^$INPUT$" "$WHITELIST_FILE" 2>/dev/null; then
|
|
echo "$INPUT" >> "$WHITELIST_FILE"
|
|
fi
|
|
|
|
log "[白名单添加] IP=$INPUT"
|
|
msg "$C_GREEN" "✅ 已添加到白名单: $INPUT"
|
|
}
|
|
|
|
do_vip_del() {
|
|
INPUT="$1"
|
|
|
|
# 标准化格式
|
|
case "$INPUT" in
|
|
*/*) DEL_ELEMENT="$INPUT" ;; # 已包含CIDR
|
|
*:*) DEL_ELEMENT="$INPUT/128" ;; # IPv6单IP
|
|
*) DEL_ELEMENT="$INPUT/32" ;; # IPv4单IP
|
|
esac
|
|
|
|
# 从nftables删除
|
|
if is_ipv6 "$INPUT"; then
|
|
nft delete element $NFT_TABLE $NFT_WHITELIST_V6 "{ $DEL_ELEMENT }" >/dev/null 2>&1
|
|
else
|
|
nft delete element $NFT_TABLE $NFT_WHITELIST "{ $DEL_ELEMENT }" >/dev/null 2>&1
|
|
fi
|
|
|
|
# 从持久化文件删除
|
|
if [ -f "$WHITELIST_FILE" ]; then
|
|
ESCAPED=$(echo "$INPUT" | sed 's/[.[\/]/\\&/g')
|
|
sed -i "/^$ESCAPED$/d" "$WHITELIST_FILE"
|
|
fi
|
|
|
|
log "[白名单移除] IP=$INPUT"
|
|
msg "$C_GREEN" "✅ 已从白名单移除: $INPUT"
|
|
}
|
|
|
|
do_vip_list() {
|
|
msg "$C_CYAN" "=== 📋 VIP 白名单列表 ==="
|
|
|
|
if [ ! -f "$WHITELIST_FILE" ] || [ ! -s "$WHITELIST_FILE" ]; then
|
|
echo "(暂无白名单记录)"
|
|
return
|
|
fi
|
|
|
|
TOTAL=$(wc -l < "$WHITELIST_FILE")
|
|
IPV4_COUNT=$(grep -c -v ':' "$WHITELIST_FILE" 2>/dev/null || echo 0)
|
|
IPV6_COUNT=$(grep -c ':' "$WHITELIST_FILE" 2>/dev/null || echo 0)
|
|
|
|
printf "总计: %b%s%b 条 | IPv4: %b%s%b 条 | IPv6: %b%s%b 条\n\n" \
|
|
"$C_GREEN" "$TOTAL" "$C_RESET" \
|
|
"$C_CYAN" "$IPV4_COUNT" "$C_RESET" \
|
|
"$C_YELLOW" "$IPV6_COUNT" "$C_RESET"
|
|
|
|
printf "%b%-45s%b\n" "$C_YELLOW" "IP 地址" "$C_RESET"
|
|
echo "---------------------------------------------"
|
|
|
|
awk '{printf "%-45s\n", $1}' "$WHITELIST_FILE"
|
|
echo ""
|
|
|
|
msg "$C_CYAN" "📌 文件位置: $WHITELIST_FILE"
|
|
}
|
|
|
|
do_add() {
|
|
INPUT="$1"
|
|
# 验证输入格式
|
|
case "$INPUT" in
|
|
*/*)
|
|
# CIDR 格式验证
|
|
IP="${INPUT%%/*}"
|
|
MASK="${INPUT##*/}"
|
|
if ! echo "$MASK" | grep -qE '^[0-9]+$'; then
|
|
msg "$C_RED" "❌ 无效的CIDR格式: $INPUT"
|
|
exit 1
|
|
fi
|
|
;;
|
|
*:*|*.*.*.*)
|
|
# IPv6 或 IPv4 单IP
|
|
;;
|
|
*)
|
|
msg "$C_RED" "❌ 无效的IP格式: $INPUT"
|
|
exit 1
|
|
;;
|
|
esac
|
|
|
|
ban_ip "$INPUT" 1
|
|
msg "$C_GREEN" "✅ 已封禁: $INPUT"
|
|
}
|
|
do_del() {
|
|
INPUT="$1"
|
|
|
|
# 标准化IP格式：单IP自动添加/32或/128
|
|
case "$INPUT" in
|
|
*/*) DEL_ELEMENT="$INPUT" ;; # 已包含CIDR
|
|
*:*) DEL_ELEMENT="$INPUT/128" ;; # IPv6单IP
|
|
*) DEL_ELEMENT="$INPUT/32" ;; # IPv4单IP
|
|
esac
|
|
|
|
if is_ipv6 "$INPUT"; then
|
|
nft delete element $NFT_TABLE $NFT_SET_V6 "{ $DEL_ELEMENT }" >/dev/null 2>&1
|
|
else
|
|
nft delete element $NFT_TABLE $NFT_SET "{ $DEL_ELEMENT }" >/dev/null 2>&1
|
|
fi
|
|
|
|
# 从持久化文件删除（支持原始输入格式）
|
|
if [ -f "$PERSIST_FILE" ]; then
|
|
# 转义特殊字符用于sed
|
|
ESCAPED=$(echo "$INPUT" | sed 's/[.[\/]/\\&/g')
|
|
sed -i "/^$ESCAPED$/d" "$PERSIST_FILE"
|
|
fi
|
|
|
|
log "[手动解封] IP=$INPUT"
|
|
msg "$C_GREEN" "✅ 已解封: $INPUT"
|
|
}
|
|
do_restore() {
|
|
check_and_install_env; init_nft_rules
|
|
|
|
# 恢复黑名单
|
|
if [ -f "$PERSIST_FILE" ]; then
|
|
count=0
|
|
while IFS= read -r ip; do [ -n "$ip" ] && ban_ip "$ip" 2 && count=$((count+1)); done < "$PERSIST_FILE"
|
|
log "[系统恢复] 已从磁盘恢复 $count 个黑名单 IP"
|
|
msg "$C_GREEN" "✅ 已从磁盘恢复 $count 个黑名单 IP"
|
|
fi
|
|
|
|
# 恢复白名单
|
|
if [ -f "$WHITELIST_FILE" ]; then
|
|
wcount=0
|
|
while IFS= read -r ip; do
|
|
if [ -n "$ip" ]; then
|
|
case "$ip" in
|
|
*/*) ELEMENT="$ip" ;;
|
|
*:*) ELEMENT="$ip/128" ;;
|
|
*) ELEMENT="$ip/32" ;;
|
|
esac
|
|
|
|
if is_ipv6 "$ip"; then
|
|
nft add element $NFT_TABLE $NFT_WHITELIST_V6 "{ $ELEMENT }" 2>/dev/null && wcount=$((wcount+1))
|
|
else
|
|
nft add element $NFT_TABLE $NFT_WHITELIST "{ $ELEMENT }" 2>/dev/null && wcount=$((wcount+1))
|
|
fi
|
|
fi
|
|
done < "$WHITELIST_FILE"
|
|
log "[系统恢复] 已从磁盘恢复 $wcount 个白名单 IP"
|
|
msg "$C_GREEN" "✅ 已从磁盘恢复 $wcount 个白名单 IP"
|
|
fi
|
|
}
|
|
|
|
do_install() {
|
|
check_root
|
|
CURRENT=$(readlink -f "$0" 2>/dev/null || echo "$0")
|
|
if [ "$CURRENT" != "$INSTALL_PATH" ]; then cp "$0" "$INSTALL_PATH" && chmod +x "$INSTALL_PATH"; fi
|
|
mkdir -p "$RECORD_DIR" && chmod 700 "$RECORD_DIR"
|
|
touch "$PERSIST_FILE" && chmod 600 "$PERSIST_FILE"
|
|
touch "$COUNTRY_FILE" && chmod 600 "$COUNTRY_FILE"
|
|
touch "$LOG_FILE" && chmod 666 "$LOG_FILE"
|
|
check_and_install_env; init_nft_rules; do_restore
|
|
PAM_FILE="/etc/pam.d/sshd"
|
|
sed -i "\|$INSTALL_PATH|d" "$PAM_FILE"
|
|
sed -i "1s|^|auth optional pam_exec.so quiet $INSTALL_PATH check\n|" "$PAM_FILE"
|
|
echo "session optional pam_exec.so quiet $INSTALL_PATH clean" >> "$PAM_FILE"
|
|
cat > "/etc/systemd/system/block-ip.service" <<EOF
|
|
[Unit]
|
|
Description=Block-IP Service
|
|
After=network.target nftables.service
|
|
[Service]
|
|
Type=oneshot
|
|
ExecStart=$INSTALL_PATH restore
|
|
RemainAfterExit=yes
|
|
[Install]
|
|
WantedBy=multi-user.target
|
|
EOF
|
|
systemctl daemon-reload; systemctl enable block-ip.service
|
|
msg "$C_GREEN" "✅ 安装完成！输入 block-ip list 查看效果。"
|
|
}
|
|
|
|
do_uninstall() {
|
|
check_root
|
|
msg "$C_YELLOW" "⚠️ 开始卸载 Block-IP..."
|
|
|
|
# 停止并禁用服务
|
|
if [ -f "/etc/systemd/system/block-ip.service" ]; then
|
|
systemctl stop block-ip.service 2>/dev/null
|
|
systemctl disable block-ip.service 2>/dev/null
|
|
rm -f "/etc/systemd/system/block-ip.service"
|
|
systemctl daemon-reload
|
|
msg "$C_GREEN" " ✓ 已移除 systemd 服务"
|
|
fi
|
|
|
|
# 清除 nftables 规则
|
|
nft delete rule $NFT_TABLE input ip saddr @"$NFT_SET" drop 2>/dev/null
|
|
nft delete rule $NFT_TABLE input ip6 saddr @"$NFT_SET_V6" drop 2>/dev/null
|
|
nft delete rule $NFT_TABLE input ip saddr @"$NFT_WHITELIST" accept 2>/dev/null
|
|
nft delete rule $NFT_TABLE input ip6 saddr @"$NFT_WHITELIST_V6" accept 2>/dev/null
|
|
nft delete set $NFT_TABLE $NFT_SET 2>/dev/null
|
|
nft delete set $NFT_TABLE $NFT_SET_V6 2>/dev/null
|
|
nft delete set $NFT_TABLE $NFT_WHITELIST 2>/dev/null
|
|
nft delete set $NFT_TABLE $NFT_WHITELIST_V6 2>/dev/null
|
|
msg "$C_GREEN" " ✓ 已清除防火墙规则"
|
|
|
|
# 移除 PAM 配置
|
|
PAM_FILE="/etc/pam.d/sshd"
|
|
if [ -f "$PAM_FILE" ]; then
|
|
sed -i "\|$INSTALL_PATH|d" "$PAM_FILE"
|
|
msg "$C_GREEN" " ✓ 已移除 PAM 钩子"
|
|
fi
|
|
|
|
# 删除文件 (可选保留日志和封禁列表)
|
|
printf "是否删除封禁列表和日志? [y/N] "
|
|
read -r REPLY
|
|
if [ "$REPLY" = "y" ] || [ "$REPLY" = "Y" ]; then
|
|
rm -f "$PERSIST_FILE" "$LOG_FILE" "${LOG_FILE}.1"
|
|
msg "$C_GREEN" " ✓ 已删除数据文件"
|
|
else
|
|
msg "$C_CYAN" " ↳ 保留: $PERSIST_FILE, $LOG_FILE"
|
|
fi
|
|
|
|
rm -rf "$RECORD_DIR"
|
|
rm -f "$INSTALL_PATH"
|
|
msg "$C_GREEN" " ✓ 已删除程序文件"
|
|
|
|
msg "$C_GREEN" "\n✅ 卸载完成！"
|
|
}
|
|
|
|
do_check() {
|
|
THE_IP=$(get_ip)
|
|
[ -z "$THE_IP" ] && return
|
|
|
|
# 检查白名单
|
|
if [ -f "$WHITELIST_FILE" ]; then
|
|
while IFS= read -r wip; do
|
|
[ -z "$wip" ] && continue
|
|
# 单IP精确匹配
|
|
if [ "$THE_IP" = "$wip" ]; then
|
|
log "[白名单放行] IP=$THE_IP"
|
|
return
|
|
fi
|
|
# CIDR匹配（通过nftables集合）
|
|
case "$wip" in
|
|
*/*)
|
|
PREFIX="${wip%%/*}"
|
|
MASK="${wip##*/}"
|
|
# 简化匹配：/8匹配第一段，/16匹配前两段，/24匹配前三段
|
|
case "$MASK" in
|
|
8)
|
|
A="${PREFIX%%.*.*.*}"
|
|
if echo "$THE_IP" | grep -q "^$A\."; then
|
|
log "[白名单放行] IP=$THE_IP 匹配白名单 $wip"
|
|
return
|
|
fi
|
|
;;
|
|
16)
|
|
AB="${PREFIX%.*.*}"
|
|
if echo "$THE_IP" | grep -q "^$AB\."; then
|
|
log "[白名单放行] IP=$THE_IP 匹配白名单 $wip"
|
|
return
|
|
fi
|
|
;;
|
|
24)
|
|
ABC="${PREFIX%.*}"
|
|
if echo "$THE_IP" | grep -q "^$ABC\."; then
|
|
log "[白名单放行] IP=$THE_IP 匹配白名单 $wip"
|
|
return
|
|
fi
|
|
;;
|
|
esac
|
|
;;
|
|
esac
|
|
done < "$WHITELIST_FILE"
|
|
fi
|
|
|
|
[ ! -d "$RECORD_DIR" ] && mkdir -p "$RECORD_DIR" && chmod 700 "$RECORD_DIR"
|
|
IP_FILE="$RECORD_DIR/$THE_IP"
|
|
COUNT=0
|
|
[ -f "$IP_FILE" ] && COUNT=$(cat "$IP_FILE")
|
|
COUNT=$((COUNT + 1))
|
|
log "[验证失败] IP=$THE_IP (第 $COUNT/$MAX_RETRIES 次)"
|
|
if [ "$COUNT" -ge "$MAX_RETRIES" ]; then ban_ip "$THE_IP" 1; rm -f "$IP_FILE"; else echo "$COUNT" > "$IP_FILE"; fi
|
|
}
|
|
|
|
do_clean() {
|
|
THE_IP=$(get_ip)
|
|
if [ -n "$THE_IP" ] && [ -f "$RECORD_DIR/$THE_IP" ]; then
|
|
log "[登录成功] IP=$THE_IP (计数已重置)"
|
|
rm -f "$RECORD_DIR/$THE_IP"
|
|
fi
|
|
}
|
|
|
|
show_help() {
|
|
echo "Block-IP v16.2 (IPv6 + CIDR + Whitelist)"
|
|
echo "--------------------------------------"
|
|
echo "使用方法:"
|
|
echo " block-ip list 查看实时统计/活跃列表/日志"
|
|
echo " block-ip show 显示本地持久化封禁列表"
|
|
echo " block-ip add <IP> 手动封禁 IP (支持IPv4/IPv6/CIDR)"
|
|
echo " 示例: 1.1.1.1 或 1.1.1.0/24 或 2001:db8::/32"
|
|
echo " block-ip del <IP> 手动解封 IP (支持IPv4/IPv6/CIDR)"
|
|
echo " block-ip vip add <IP> 添加IP到白名单 (支持IPv4/IPv6/CIDR)"
|
|
echo " block-ip vip del <IP> 从白名单移除IP"
|
|
echo " block-ip vip list 显示白名单列表"
|
|
echo " block-ip restore 从持久化文件恢复黑白名单"
|
|
echo " block-ip install 安装/重装服务"
|
|
echo " block-ip uninstall 卸载服务"
|
|
echo "--------------------------------------"
|
|
}
|
|
|
|
case "$1" in
|
|
check) do_check ;;
|
|
clean) do_clean ;;
|
|
list) do_list ;;
|
|
show) do_show ;;
|
|
vip)
|
|
case "$2" in
|
|
add) do_vip_add "$3" ;;
|
|
del) do_vip_del "$3" ;;
|
|
list) do_vip_list ;;
|
|
*) msg "$C_RED" "用法: block-ip vip {add|del|list} <IP>"; exit 1 ;;
|
|
esac
|
|
;;
|
|
add) do_add "$2" ;;
|
|
del) do_del "$2" ;;
|
|
restore) do_restore ;;
|
|
install) do_install ;;
|
|
uninstall) do_uninstall ;;
|
|
"") show_help; exit 1 ;;
|
|
*) if [ -n "$RHOST" ] || [ -n "$PAM_RHOST" ]; then do_check; exit 0; fi
|
|
show_help; exit 1 ;;
|
|
esac |