From 5115961094bc8477d8a8416f711259f230e4f2af Mon Sep 17 00:00:00 2001 From: joe Date: Thu, 22 Jan 2026 13:10:43 +0900 Subject: [PATCH] =?UTF-8?q?=E4=BF=AE=E6=AD=A3=E5=BF=98=E3=82=8C?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- README.md | 36 ++--- ipf1.0.4 | 395 ------------------------------------------------------ ipfn1.0 | 236 -------------------------------- 3 files changed, 20 insertions(+), 647 deletions(-) delete mode 100644 ipf1.0.4 delete mode 100755 ipfn1.0 diff --git a/README.md b/README.md index 6c0a19a..e5afa2e 100644 --- a/README.md +++ b/README.md @@ -1,37 +1,41 @@ -このプロジェクトは、iptablesのルールを編集するためのスクリプトです。以下が使用方法とライセンス情報です。 +このプロジェクトは、nftablesのルールを編集するためのスクリプトです。以下が使用方法とライセンス情報です。 --- ### 概要 -このツールは、`iptables`のルールを編集する際のスクリプトであり、一時ファイルを作成し、エディタでルールを編集する処理を含みます。 +このツールは、`nftables`のルールを編集する際のスクリプトです。 --- ### 使用方法 -1. **ルールの編集** +**ルールの編集** ```bash - ipf 11434:10.1.1.2:11434 # Forward local port 11434 to 10.1.1.2:11434 - ipf -L # List all rules with numbers - ipf -d 1 # Delete rule number 1 - ipf -d 1 -q # Delete rule number 1 (quiet mode) - ipf -v # Show current iptables rules by iptables-save - ipf -e # Edit all rules in editor and restore - ``` - ipf -e で一時ファイルが作成され、エディタ（例: `nano`）でルールを編集できます。編集が完了した後、一時ファイルは自動的に削除されます [1]。 + Usage: ipfn [OPTIONS] [RULES] -2. **バージョン情報の表示** - ```bash - ipf --version # Show version information + Rules Format: + 80:10.10.100.5:8080 Full (LocalPort:TargetIP:TargetPort) + 80:8080 IP defaults to 127.0.0.1 + 11434 Map same port to 127.0.0.1 + + Options: + -l, -L List all rules + -d HANDLE/:PORT/all Delete specific rules or '*' for all + -R Reset: Clear ALL rules immediately + -q Quiet mode (No output, Auto-yes) + -t [HANDLE] Test connectivity + -f Enable IP forward & Bridge tuning / Skip test + -v Verbose (raw nftables output) + -h Show this help ``` - これにより、ソフトウェアのバージョンとライセンス情報が表示されます [1]。 + --- ### ライセンス MIT License に基づくライセンスです。 **権利者**: krasherjoe -**日付**: 2025-10-26 +**日付**: 2026-01-22 --- diff --git a/ipf1.0.4 b/ipf1.0.4 deleted file mode 100644 index 75bf4eb..0000000 --- a/ipf1.0.4 +++ /dev/null @@ -1,395 +0,0 @@ -#!/bin/bash - -# sudo権限で実行されているか確認し、そうでなければsudoで再実行 -if [ "$(id -u)" -ne 0 ]; then - exec sudo "$0" "$@" -fi - -# グローバル変数 -RULES_FILE="/tmp/iptables_forward_rules" -QUIET=false -PROTO="tcp" # デフォルトプロトコル - -# コンテナ環境検出関数 -is_container() { - # systemd-detect-virt を使用してコンテナ環境を検出 - if command -v systemd-detect-virt &> /dev/null; then - if systemd-detect-virt --quiet | grep -qE "container|vm"; then - return 0 # コンテナまたは仮想マシン環境 - fi - fi - - # lxc-checkconfig を使用して LXC コンテナを検出 (systemd-detect-virt がない場合) - if command -v lxc-checkconfig &> /dev/null; then - if lxc-checkconfig 2>&1 | grep -q "Running in an LXC container"; then - return 0 # LXC コンテナ環境 - fi - fi - - # その他 (LXD など) のコンテナ環境検出方法を追加可能 - - return 1 # コンテナ環境ではない -} - - -# ヘルプ表示 -show_help() { - cat << EOF -Usage: ipf [OPTIONS] [PORT:IP:PORT | -L | -d RULE_NUMBER] - -Examples: - ipf 11434:10.1.1.2:11434 # Forward local port 11434 to 10.1.1.2:11434 - ipf -L # List all rules with numbers - ipf -d 1 # Delete rule number 1 - ipf -d 1 -q # Delete rule number 1 (quiet mode) - ipf -v # Show current iptables rules by iptables-save - ipf -e # Edit all rules in editor and restore - ipf -f # Enable IP forwarding - ipf -t 1 # Test rule number 1 - ipf -t 11434:10.10.1.2:11434 # Test rule by specification - ipf -p udp 11434:10.1.1.2:11434 # Forward using UDP - -Options: - -h, --help Show this help message - -L, -l List all rules - -d NUM Delete rule by number - -q Quiet mode (no output) - -v Show current iptables rules (via iptables-save) - -e Edit all rules in editor and restore - -f Enable IP forwarding and localnet routing - -t ARG Test connectivity for rule number or PORT:IP:PORT - -p PROTO Specify protocol (tcp|udp) for the following rule - --version Show version information - -NOTE: - All port forwarding is performed using DNAT only. No MASQUERADE (SNAT) is applied, - so the original source IP of the client is preserved. This ensures that - fail2ban logs the correct client IP on the destination server. -EOF -} - -# バージョン情報を表示 -show_version() { - cat << EOF -ipf ver.1.0.4 -Date: 2025-10-26 -Created by: qwen3/gpt-oss/gemini-2.5-pro and krasherjoe - ---- -MIT License - -Copyright (c) 2025 krasherjoe - -Permission is hereby granted, free of charge, to any person obtaining a copy -of this software and associated documentation files (the "Software"), to deal -in the Software without restriction, including without limitation the rights -to use, copy, modify, merge, publish, distribute, sublicense, and/or sell -copies of the Software, and to permit persons to whom the Software is -furnished to do so, subject to the following conditions: - -The above copyright notice and this permission notice shall be included in all -copies or substantial portions of the Software. - -THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR -IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE -AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER -LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, -OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -SOFTWARE. ---- - -** WARNING / 注意 ** -This script operates with administrative privileges (sudo) to modify your system's -firewall (iptables) rules. Incorrect use, especially with the -e (edit) option, -can disrupt your network connectivity or overwrite existing security rules. -Please use with caution and understand the changes you are making. - -このスクリプトは管理者権限(sudo)で動作し、システムのファイアウォール(iptables)ルールを -直接変更します。特に -e (編集) オプションの誤った使用は、ネットワーク接続を中断させたり、 -既存のセキュリティルールを上書きする危険性があります。 -コンテナ環境ではMASQUERADEを使用するため、クライアントの元のIPアドレスが隠蔽されます。 -これにより、fail2banなどのツールが不正な行為者を正しく識別し、ブロックできなくなる可能性があります。 -セキュリティへの影響を考慮してください。 -内容をよく理解した上で、注意して使用してください。 -EOF -} - -# エラーメッセージを表示 -error() { - echo "Error: $*" >&2 - logger -p user.err "ipf: $*" - exit 1 -} - -# ルールの保存 -save_rules() { - iptables-save > "$RULES_FILE" -} - -# ルールの読み込み -load_rules() { - if [[ -f "$RULES_FILE" ]]; then - iptables-restore < "$RULES_FILE" - fi -} - -# ルール番号と内容をリスト表示 -list_rules() { - local i=1 - echo "Forwarding rules:" - iptables -t nat -L PREROUTING -n -v --line-numbers | grep -E '^[0-9]+' | while read -r line; do - echo "$i: $line" - ((i++)) - done -} - -# ルールを削除 -delete_rule() { - local num=$1 - if ! [[ "$num" =~ ^[0-9]+$ ]]; then - error "Invalid rule number: $num" - fi - - # ユーザーへの表示用に整形されたルール行を取得 - local rule_line_verbose=$(iptables -t nat -L PREROUTING --line-numbers | grep -E "^$num\s+" | head -n 1) - if [[ -z "$rule_line_verbose" ]]; then - error "No rule found with number: $num" - fi - - # パース用に-nオプションを付けたルール行を取得 - local rule_line_numeric=$(iptables -t nat -L PREROUTING -n --line-numbers | grep -E "^\s*$num\s+" | head -n 1) - if [[ -z "$rule_line_numeric" ]]; then - error "Could not find numeric rule for number: $num" # Should not happen - fi - - # ルールから詳細を抽出 (sedを使い、より堅牢に) - local line_details=$(echo "$rule_line_numeric" | sed -n 's/.*\(tcp\|udp\).*dpt:\([0-9]*\).*to:\([0-9.]*\):\([0-9]*\).*/\1 \2 \3 \4/p') - if [[ -z "$line_details" ]]; then - error "Could not parse rule details from line: $rule_line_numeric" - fi - read -r proto local_port target_ip target_port <<< "$line_details" - - # 1. PREROUTING ルールを番号で削除 - if ! iptables -t nat -D PREROUTING "$num"; then - error "Failed to delete PREROUTING rule $num" - fi - - # 2. 対応する OUTPUT ルールをすべて削除 - while iptables -t nat -D OUTPUT -p "$proto" -m "$proto" --dport "$local_port" -j DNAT --to-destination "$target_ip:$target_port" >/dev/null 2>&1; do :; done - - # 3. 対応する FORWARD ルールをすべて削除 - while iptables -D FORWARD -p "$proto" -m "$proto" -d "$target_ip" --dport "$target_port" -j ACCEPT >/dev/null 2>&1; do :; done - - # 4. 確立済み通信を許可するルールを削除 (存在確認後に削除) - if iptables -C FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT 2>/dev/null; then - iptables -D FORWARD -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT >/dev/null 2>&1 - fi - - if ! $QUIET; then - echo "Deleted rule $num: $rule_line_verbose" - fi -} - -# ポートフォワーディングルールを追加 -add_rule() { - # IPフォワーディングが有効かチェック - if [[ $(sysctl -n net.ipv4.ip_forward) -ne 1 ]]; then - error "IP forwarding is disabled. Please enable it by running: ipf -f" - fi - - local container_env=$(is_container) - if [[ $container_env -eq 0 ]]; then - echo -e "\e[33mDetected container environment. MASQUERADE is enabled, which hides the original client IP address. This will prevent tools like fail2ban from correctly identifying and blocking malicious actors. Consider the security implications.\e[0m" # コンテナ環境であることを示すメッセージ - fi - - # 確立済みの通信は許可する (戻りのパケットのため) - iptables -I FORWARD 1 -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT - - local port_ip_port=$1 - local local_port=$(echo "$port_ip_port" | cut -d':' -f1) - local target_ip=$(echo "$port_ip_port" | cut -d':' -f2) - local target_port=$(echo "$port_ip_port" | cut -d':' -f3) - - # IPアドレス検証 - if ! [[ "$target_ip" =~ ^([0-9]{1,3}\.){3}[0-9]{1,3}$ ]]; then - error "Invalid IP address: $target_ip" - fi - - # ポート番号検証 - if ! [[ "$local_port" =~ ^[0-9]+$ ]] || ! [[ "$target_port" =~ ^[0-9]+$ ]]; then - error "Invalid port number" - fi - if (( local_port < 1 || local_port > 65535 || target_port < 1 || target_port > 65535 )); then - error "Port number out of range (1-65535)" - fi - - # iptablesでルールを追加 - # 外部からのパケットを対象 - iptables -t nat -A PREROUTING -p "$PROTO" -m "$PROTO" --dport "$local_port" -j DNAT --to-destination "$target_ip:$target_port" - # ローカルで生成されたパケットを対象 - iptables -t nat -A OUTPUT -p "$PROTO" -m "$PROTO" --dport "$local_port" -j DNAT --to-destination "$target_ip:$target_port" - - if [[ $container_env -eq 0 ]]; then - # コンテナ環境ではMASQUERADEを使用 - iptables -t nat -A POSTROUTING -p "$PROTO" -m "$PROTO" -d "$target_ip" --dport "$target_port" -j MASQUERADE - fi - - # 転送されるパケットを許可する - iptables -A FORWARD -p "$PROTO" -m "$PROTO" -d "$target_ip" --dport "$target_port" -j ACCEPT - - if ! $QUIET; then - echo "Rule added: port $local_port -> $target_ip:$target_port (proto=$PROTO)" - fi -} - -# ルールを編集して復元 -edit_rules() { - local temp_file - temp_file=$(mktemp -t iptables.rules.XXXXXX) || error "Failed to create temporary file" - chmod 0600 "$temp_file" - trap 'rm -f "$temp_file"' EXIT - - # 現在のルールを一時ファイルに保存 - iptables-save > "$temp_file" - - # エディタを決定 - local editor=${EDITOR:-nano} - if ! command -v "$editor" > /dev/null; then - editor=vi - fi - - # nanoで編集 - if ! "$editor" "$temp_file"; then - error "Editor closed without saving or an error occurred." - fi - - # 編集後の内容でリストア - if iptables-restore < "$temp_file"; then - echo "iptables rules restored successfully from your edits." - echo "--- Displaying new rules ---" - iptables-save - else - error "Failed to restore iptables rules. Please check for syntax errors in your edits." - fi -} - -# 疎通確認用関数 -test_rule() { - local arg=$1 - local local_port target_ip target_port - - if [[ "$arg" =~ ^[0-9]+$ ]]; then - # rule number → ルール行を取得 - local line=$(iptables -t nat -L PREROUTING -n --line-numbers | grep "^$arg ") - if [[ -z "$line" ]]; then - error "No rule found with number: $arg" - fi - local_port=$(echo "$line" | awk '{print $8}'|cut -d ':' -f2) - target_ip=$(echo "$line" | awk -F: '{print $1}') - target_port=$(echo "$line" | awk -F: '{print $2}') - else - # 文字列形式 - local_port=$(echo "$arg" | cut -d':' -f1) - target_ip=$(echo "$arg" | cut -d':' -f2) - target_port=$(echo "$arg" | cut -d':' -f3) - fi - - echo "Testing connectivity to local port \"$(tput setaf 3)nc -z -w 5 127.0.0.1 $local_port$(tput sgr0)\"" - if nc -z -w 5 127.0.0.1 "$local_port" 2>/dev/null; then - echo "$(tput setaf 6)Connection successful.$(tput sgr0)" - else - echo "$(tput setaf 1)Connection failed.$(tput sgr0)" - fi -} - -# メイン処理 -main() { - # オプション解析 - while [[ $# -gt 0 ]]; do - case "$1" in - -h|--help) - show_help - exit 0 - ;; - -L|-l) - list_rules - exit 0 - ;; - -v) - iptables-save | grep -v '^#' | less -R - exit 0 - ;; - -e) - edit_rules - exit 0 - ;; - -f) - if sysctl -w net.ipv4.ip_forward=1 > /dev/null && \ - sysctl -w net.ipv4.conf.all.route_localnet=1 > /dev/null && \ - sysctl -w net.ipv4.conf.default.route_localnet=1 > /dev/null; then - echo "IP forwarding and localnet routing enabled." - else - error "Failed to enable kernel parameters." - fi - exit 0 - ;; - --version) - show_version - exit 0 - ;; - -d) - if [[ $# -lt 2 ]]; then - error "Missing rule number for -d option" - fi - delete_rule "$2" - exit 0 - ;; - -t) - if [[ $# -lt 2 ]]; then - error "Missing argument for -t option" - fi - test_rule "$2" - exit 0 - ;; - -q) - QUIET=true - shift - ;; - -p) - if [[ $# -lt 2 ]]; then - error "Missing protocol after -p" - fi - if [[ "$2" != "tcp" && "$2" != "udp" ]]; then - error "Unsupported protocol: $2" - fi - PROTO="$2" - shift 2 - ;; - -*) - error "Unknown option: $1" - ;; - *) - break - ;; - esac - done - - # 引数が残っていれば、ルール追加処理 - if [[ $# -eq 0 ]]; then - show_help - exit 1 - fi - - local arg=$1 - - # ルール追加処理 - if [[ "$arg" =~ ^[0-9]+:[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+:[0-9]+$ ]]; then - add_rule "$arg" - else - error "Invalid format. Expected: PORT:IP:PORT or -L or -d RULE_NUMBER" - fi -} - -# 実行 -main "$@" \ No newline at end of file diff --git a/ipfn1.0 b/ipfn1.0 deleted file mode 100755 index 69e088c..0000000 --- a/ipfn1.0 +++ /dev/null @@ -1,236 +0,0 @@ -#!/bin/bash -# Name: ipfn -# Version: 1.2.4 -# Date: 2026-01-22 -# Description: Enhanced for VM/LXD/Docker with bridge-nf tuning and robust forwarding. - -if [ "$(id -u)" -ne 0 ]; then - exec sudo "$0" "$@" -fi - -TABLE_NAME="ipf_wrapper" -PROTO="tcp" -FORCE_FLAG=false -SKIP_TEST=false -QUIET_MODE=false - -# --- 1. Utility & Core Setup --- - -msg() { [[ "$QUIET_MODE" == false ]] && echo -e "$@"; } - -init_nft() { - nft add table inet ${TABLE_NAME} 2>/dev/null - # NAT Chains - nft add chain inet ${TABLE_NAME} prerouting { type nat hook prerouting priority -100 \; } 2>/dev/null - nft add chain inet ${TABLE_NAME} output { type nat hook output priority -100 \; } 2>/dev/null - nft add chain inet ${TABLE_NAME} postrouting { type nat hook postrouting priority 100 \; } 2>/dev/null - # Filter Chain (For VM/CT Forwarding) - nft add chain inet ${TABLE_NAME} forward { type filter hook forward priority 0 \; policy accept \; } 2>/dev/null -} - -enable_forwarding() { - msg "Optimizing kernel parameters for VM/LXD/Docker..." - sysctl -w net.ipv4.ip_forward=1 >/dev/null - sysctl -w net.ipv6.conf.all.forwarding=1 >/dev/null - sysctl -w net.ipv4.conf.all.route_localnet=1 >/dev/null - # ブリッジパケットをNetfilterに渡す設定 (存在する場合のみ) - sysctl -w net.bridge.bridge-nf-call-iptables=1 2>/dev/null - sysctl -w net.bridge.bridge-nf-call-ip6tables=1 2>/dev/null - msg "\e[32mForwarding and Bridge-NF enabled.\e[0m" -} - -show_help() { - echo "Usage: ipfn [OPTIONS] [RULES]" - echo "" - echo "Rules Format:" - echo " 80:10.10.100.5:8080 Full (LocalPort:TargetIP:TargetPort)" - echo " 80:8080 IP defaults to 127.0.0.1" - echo " 11434 Map same port to 127.0.0.1" - echo "" - echo "Options:" - echo " -l, -L List all rules" - echo " -d HANDLE/:PORT/all Delete specific rules or '*' for all" - echo " -R Reset: Clear ALL rules immediately" - echo " -q Quiet mode (No output, Auto-yes)" - echo " -t [HANDLE] Test connectivity" - echo " -f Enable IP forward & Bridge tuning / Skip test" - echo " -v Verbose (raw nftables output)" - echo " -h Show this help" -} - -list_rules() { - [[ "$QUIET_MODE" == true ]] && return - local highlight_uuid=$1 - init_nft - msg "Forwarding Rules (ipfn):" - printf "%-10s %-6s %-20s %-20s %-10s\n" "HANDLE" "PROTO" "LOCAL" "TARGET" "UUID" - echo "-----------------------------------------------------------------------------------" - nft -a list chain inet ${TABLE_NAME} prerouting | grep "dnat" | while read -r line; do - handle=$(echo "$line" | grep -o 'handle [0-9]*' | awk '{print $2}') - proto=$(echo "$line" | grep -q "udp" && echo "udp" || echo "tcp") - target=$(echo "$line" | grep -oE '([0-9.]+|\[[0-9a-fA-F:]+\]):[0-9]+' | head -n 1) - lport=$(echo "$line" | grep -o 'dport [0-9]*' | awk '{print $2}') - full_uuid=$(echo "$line" | grep -o 'ipf-id:[a-z0-9-]*' | cut -d':' -f2) - if [[ -n "$highlight_uuid" && "$full_uuid" == "$highlight_uuid" ]]; then - printf "\e[1;36m*%-9s %-6s %-20s %-20s %-10s\e[0m\n" "$handle" "$proto" ":$lport" "$target" "${full_uuid:0:8}" - else - printf "%-10s %-6s %-20s %-20s %-10s\n" "$handle" "$proto" ":$lport" "$target" "${full_uuid:0:8}" - fi - done -} - -test_rule_by_port() { - [[ "$QUIET_MODE" == true ]] && return - local lp=$1 - echo -n "Testing connectivity to :$lp... " - if nc -z -v -w 2 127.0.0.1 "$lp" 2>&1 | grep -iqE "succeeded|connected|open"; then - echo -e "\e[32mOK\e[0m" - else - echo -e "\e[31mFAILED\e[0m" - fi -} - -# --- 2. Deletion Logic --- - -validate_rule_handle() { - nft -a list chain inet ${TABLE_NAME} prerouting | grep "handle $1" | grep -q "dnat" -} - -all_clear() { - if [[ "$FORCE_FLAG" == false ]]; then - msg "\e[33mWarning: This will delete ALL forwarding rules.\e[0m" - read -p "Are you sure? (y/N): " confirm - [[ ! "$confirm" =~ ^[yY]$ ]] && exit 0 - fi - nft delete table inet ${TABLE_NAME} 2>/dev/null - init_nft - msg "All rules cleared successfully." - exit 0 -} - -parse_delete_targets() { - local input=$1 - local -a final_handles=() - [[ "$input" == "*" || "$input" == "all" ]] && all_clear - IFS=',' read -r -a parts <<< "$input" - for part in "${parts[@]}"; do - if [[ "$part" =~ ^:([0-9]+)$ ]]; then - local target_port="${BASH_REMATCH[1]}" - local found_h=$(nft -a list chain inet ${TABLE_NAME} prerouting | grep "dport $target_port" | grep -o 'handle [0-9]*' | awk '{print $2}') - for h in $found_h; do final_handles+=("$h"); done - elif [[ "$part" =~ ^([0-9]+)-([0-9]+)$ ]]; then - for ((i=${BASH_REMATCH[1]}; i<=${BASH_REMATCH[2]}; i++)); do - validate_rule_handle "$i" && final_handles+=("$i") - done - else - validate_rule_handle "$part" && final_handles+=("$part") - fi - done - echo "${final_handles[@]}" -} - -# --- 3. Adding Logic --- - -add_rule() { - init_nft - local raw_input=$1 - local lp tip tp - - if [[ "$raw_input" =~ ^([0-9]+):([0-9\.]+):([0-9]+)$ ]]; then - lp=${BASH_REMATCH[1]}; tip=${BASH_REMATCH[2]}; tp=${BASH_REMATCH[3]} - elif [[ "$raw_input" =~ ^([0-9]+):([0-9]+)$ ]]; then - lp=${BASH_REMATCH[1]}; tip="127.0.0.1"; tp=${BASH_REMATCH[2]} - elif [[ "$raw_input" =~ ^([0-9]+)$ ]]; then - lp=${BASH_REMATCH[1]}; tip="127.0.0.1"; tp=${BASH_REMATCH[1]} - else - msg "\e[31mError: Invalid rule format '$raw_input'\e[0m"; exit 1 - fi - - local raw_uuid=$(cat /proc/sys/kernel/random/uuid) - local uuid="ipf-id:$raw_uuid" - local family="ip"; [[ "$tip" =~ : ]] && family="ip6" - - # DNAT - nft add rule inet ${TABLE_NAME} prerouting "$PROTO" dport "$lp" dnat $family to "$tip:$tp" comment "\"$uuid\"" - nft add rule inet ${TABLE_NAME} output "$PROTO" dport "$lp" dnat $family to "$tip:$tp" comment "\"$uuid\"" - - # FORWARD (VM/CT対応) - nft add rule inet ${TABLE_NAME} forward $family daddr "$tip" "$PROTO" dport "$tp" ct state new,established,related accept comment "\"$uuid\"" - nft add rule inet ${TABLE_NAME} forward $family saddr "$tip" "$PROTO" sport "$tp" ct state established,related accept comment "\"$uuid\"" - nft add rule inet ${TABLE_NAME} forward iifname "lo" accept comment "\"$uuid\"" - - # POSTROUTING (MASQUERADE: 戻りパケットの保証) - nft add rule inet ${TABLE_NAME} postrouting $family daddr "$tip" "$PROTO" dport "$tp" masquerade comment "\"$uuid\"" - - list_rules "$raw_uuid" - [[ "$SKIP_TEST" == false ]] && { echo ""; test_rule_by_port "$lp"; } -} - -# --- 4. Main Parsing --- - -for arg in "$@"; do - [[ "$arg" =~ q ]] && QUIET_MODE=true && FORCE_FLAG=true && SKIP_TEST=true - [[ "$arg" =~ f ]] && FORCE_FLAG=true && SKIP_TEST=true - [[ "$arg" == "-R" ]] && RESET_MODE=true -done - -if [[ "$RESET_MODE" == true ]]; then all_clear; fi - -if [[ $# -eq 0 ]]; then list_rules; exit 0; fi - -while [[ $# -gt 0 ]]; do - case "$1" in - -h|--help) show_help; exit 0 ;; - -v|--verbose) nft list table inet ${TABLE_NAME}; exit 0 ;; - -L|-l) list_rules; exit 0 ;; - -f) - enable_forwarding - [[ $# -eq 1 ]] && exit 0 ;; - -t*) - h_str="${1#-t}" - if [[ -z "$h_str" && ( "$2" =~ ^[0-9,-]+$ ) ]]; then h_str="$2"; shift; fi - if [[ -z "$h_str" ]]; then - count=$(nft list chain inet ${TABLE_NAME} prerouting | grep -c "dnat") - if [ "$count" -eq 1 ]; then - h_str=$(nft -a list chain inet ${TABLE_NAME} prerouting | grep "handle" | awk '{print $NF}') - else - msg "Error: Multiple rules exist. Specify a handle."; exit 1 - fi - fi - lp=$(nft -a list chain inet ${TABLE_NAME} prerouting | grep "handle $h_str" | grep -o 'dport [0-9]*' | awk '{print $2}') - [[ -n "$lp" ]] && test_rule_by_port "$lp" || msg "Error: Handle $h_str not found." - exit 0 ;; - -*[d]*) - h_str=$(echo "$1" | sed -E 's/^-q?d?f?//') - [[ -z "$h_str" ]] && { h_str="$2"; shift; } - handles=($(parse_delete_targets "$h_str")) - [[ ${#handles[@]} -eq 0 ]] && { msg "No valid targets."; exit 1; } - if [[ "$FORCE_FLAG" == false ]]; then - msg "Review rules to delete (Top-level only):" - for h in "${handles[@]}"; do - nft -a list chain inet ${TABLE_NAME} prerouting | grep "handle $h" | sed 's/^/ /' - done - read -p "Delete these rules and their sub-rules? (y/N): " confirm - [[ ! "$confirm" =~ ^[yY]$ ]] && exit 0 - fi - for h in "${handles[@]}"; do - ri=$(nft -a list chain inet ${TABLE_NAME} prerouting | grep "handle $h") - [[ -z "$ri" ]] && continue - uuid=$(echo "$ri" | grep -o 'ipf-id:[a-z0-9-]*' | head -n 1) - for c in prerouting output forward postrouting; do - nft -a list chain inet ${TABLE_NAME} "$c" | grep "$uuid" | grep -o 'handle [0-9]*' | awk '{print $2}' | while read -r rh; do - nft delete rule inet ${TABLE_NAME} "$c" handle "$rh" - done - done - msg "Deleted associated with handle $h" - done - list_rules; exit 0 ;; - *) - if [[ "$1" =~ ^[0-9] ]]; then - add_rule "$1"; exit 0 - else - msg "\e[31mError: Unknown option '$1'\e[0m\n"; show_help; exit 1 - fi ;; - esac - shift -done