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tokisaki galaxy
b1a20c42bd
add switch DNSMode add fw now donot duplicate fw remove WAN-> TAILSCALE FORWARD CHAIN Signed-off-by: tokisaki galaxy <moebest@outlook.jp>
361 lines
10 KiB
Ucode
Executable File
361 lines
10 KiB
Ucode
Executable File
#!/usr/bin/env ucode
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'use strict';
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import { access, popen, readfile, writefile, unlink } from 'fs';
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import { cursor } from 'uci';
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const uci = cursor();
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function exec(command) {
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let stdout_content = '';
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let p = popen(command, 'r');
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sleep(100);
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if (p == null) {
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return { code: -1, stdout: '', stderr: `Failed to execute: ${command}` };
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}
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for (let line = p.read('line'); length(line); line = p.read('line')) {
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stdout_content = stdout_content+line;
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}
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stdout_content = rtrim(stdout_content);
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stdout_content = split(stdout_content, '\n');
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let exit_code = p.close();
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let stderr_content = '';
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if (exit_code != 0) {
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stderr_content = stdout_content;
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}
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return { code: exit_code, stdout: stdout_content, stderr: stderr_content };
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}
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function shell_quote(s) {
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if (s == null || s == '') return "''";
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return "'" + replace(s, "'", "'\\''") + "'";
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}
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const methods = {};
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methods.get_status = {
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call: function() {
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let data = {
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status: '',
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version: '',
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TUNMode: '',
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health: '',
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ipv4: "Not running",
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ipv6: null,
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domain_name: '',
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peers: []
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};
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if (access('/usr/sbin/tailscale')==true || access('/usr/bin/tailscale')==true){ }else{
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data.status = 'not_installed';
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return data;
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}
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let status_json_output = exec('tailscale status --json');
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let peer_map = {};
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if (status_json_output.code == 0 && length(status_json_output.stdout) > 0) {
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try {
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let status_data = json(join('',status_json_output.stdout));
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data.version = status_data?.Version || 'Unknown';
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data.health = status_data?.Health || '';
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data.TUNMode = status_data?.TUN || 'true';
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if (status_data?.BackendState == 'Running') { data.status = 'running'; }
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if (status_data?.BackendState == 'NeedsLogin') { data.status = 'logout'; }
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data.ipv4 = status_data?.Self?.TailscaleIPs?.[0] || 'No IP assigned';
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data.ipv6 = status_data?.Self?.TailscaleIPs?.[1] || null;
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data.domain_name = status_data?.CurrentTailnet?.Name || '';
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// peers list
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for (let p in status_data?.Peer) {
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p = status_data.Peer[p];
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peer_map[p.ID] = {
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ip: join('<br>', p?.TailscaleIPs) || '',
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hostname: split(p?.DNSName || '','.')[0] || '',
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ostype: p?.OS,
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online: p?.Online,
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linkadress: (!p?.CurAddr) ? p?.Relay : p?.CurAddr,
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lastseen: p?.LastSeen,
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exit_node: !!p?.ExitNode,
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exit_node_option: !!p?.ExitNodeOption,
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tx: p?.TxBytes || '',
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rx: p?.RxBytes || ''
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};
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}
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} catch (e) { /* ignore */ }
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}
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data.peers = peer_map;
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return data;
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}
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};
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methods.get_settings = {
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call: function() {
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let settings = {};
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uci.load('tailscale');
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let state_file_path = uci.get('tailscale', 'settings', 'state_file') || "/etc/tailscale/tailscaled.state";
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if (access(state_file_path)) {
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try {
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let state_content = readfile(state_file_path);
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if (state_content != null) {
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let state_data = json(state_content);
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let profiles_b64 = state_data?._profiles;
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if (!profiles_b64) return settings;
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let profiles_data = json(b64dec(profiles_b64));
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let profiles_key = null;
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for (let key in profiles_data) {
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profiles_key = key;
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break;
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}
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profiles_key = 'profile-'+profiles_key;
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let status_data = json(b64dec(state_data?.[profiles_key]));
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if (status_data != null) {
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settings.accept_routes = status_data?.RouteAll || false;
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settings.advertise_exit_node = status_data?.AdvertiseExitNode || false;
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settings.advertise_routes = status_data?.AdvertiseRoutes || [];
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settings.exit_node = status_data?.ExitNodeID || "";
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settings.exit_node_allow_lan_access = status_data?.ExitNodeAllowLANAccess || false;
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settings.shields_up = status_data?.ShieldsUp || false;
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settings.ssh = status_data?.RunSSH || false;
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settings.runwebclient = status_data?.RunWebClient || false;
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settings.nosnat = status_data?.NoSNAT || false;
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settings.dns_mode = uci.get('tailscale', 'settings', 'dns_mode') || 'disabled';
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settings.fw_mode = split(uci.get('tailscale', 'settings', 'fw_mode'),' ')[0] || 'nftables';
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}
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}
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} catch (e) { /* ignore */ }
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}
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return settings;
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}
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};
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methods.do_login = {
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args: { form_data: {} },
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call: function(request) {
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const form_data = request.args.form_data;
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let loginargs = [];
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if (form_data == null || length(form_data) == 0) {
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return { error: 'Missing or invalid form_data parameter. Please provide login data.' };
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}
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let status=methods.get_status.call();
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if (status.status != 'logout') {
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return { error: 'Tailscale is already logged in and running.' };
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}
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// --- 1. Prepare and Run Login Command (Once) ---
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const loginserver = trim(form_data.loginserver) || '';
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const loginserver_authkey = trim(form_data.loginserver_authkey) || '';
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if (loginserver!='') {
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push(loginargs,'--login-server '+shell_quote(loginserver));
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if (loginserver_authkey!='') {
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push(loginargs,'--auth-key '+shell_quote(loginserver_authkey));
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}
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}
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// Run the command in the background using /bin/sh -c to handle the '&' correctly
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let login_cmd = 'tailscale login '+join(' ', loginargs);
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popen('/bin/sh -c "' + login_cmd + ' &"', 'r');
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// --- 2. Loop to Check Status for URL ---
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let max_attempts = 15;
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let interval = 2000;
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for (let i = 0; i < max_attempts; i++) {
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let tresult = exec('tailscale status');
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for (let line in tresult.stdout) {
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let trline = trim(line);
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if (index(trline, 'http') != -1) {
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let parts = split(trline, ' ');
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for (let part in parts) {
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if (index(part, 'http') != -1) {
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return { url: part };
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}
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}
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}
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}
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sleep(interval);
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}
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return { error: 'Could not retrieve login URL from tailscale command after 30 seconds.' };
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}
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};
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methods.do_logout = {
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call: function() {
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let status=methods.get_status.call();
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if (status.status != 'running') {
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return { error: 'Tailscale is not running. Cannot perform logout.' };
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}
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let logout_result = exec('tailscale logout');
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if (logout_result.code != 0) {
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return { error: 'Failed to logout: ' + logout_result.stderr };
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}
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return { success: true };
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}
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};
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methods.get_subroutes = {
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call: function() {
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try {
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let cmd = 'ip -j route';
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let result = exec(cmd);
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let subnets = [];
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if (result.code == 0 && length(result.stdout) > 0) {
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let routes_json = json(join('',result.stdout));
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for (let route in routes_json) {
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// We need to filter out local subnets
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// 1. 'dst' (target address) is not' default' (default gateway)
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// 2. 'scope' is' link' (indicating directly connected network)
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// 3. It is an IPv4 address (simple judgment: including'.')
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if (route?.dst && route.dst != 'default' && route?.scope == 'link' && index(route.dst,'.') != -1) {
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push(subnets,route.dst);
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}
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}
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}
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return { routes: subnets };
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}
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catch(e) {
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return { routes: [] };
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}
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}
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};
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methods.setup_firewall = {
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call: function() {
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try {
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uci.load('network');
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uci.load('firewall');
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let changed_network = false;
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let changed_firewall = false;
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// 1. config Network Interface
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let net_ts = uci.get('network', 'tailscale');
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if (net_ts == null) {
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uci.set('network', 'tailscale', 'interface');
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uci.set('network', 'tailscale', 'proto', 'none');
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uci.set('network', 'tailscale', 'device', 'tailscale0');
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changed_network = true;
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} else {
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let current_dev = uci.get('network', 'tailscale', 'device');
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if (current_dev != 'tailscale0') {
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uci.set('network', 'tailscale', 'device', 'tailscale0');
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changed_network = true;
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}
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}
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// 2. config Firewall Zone
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let ts_zone_section = null;
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let fwd_lan_to_ts = false;
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let fwd_ts_to_lan = false;
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uci.foreach('firewall', 'zone', function(s) {
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if (s['name'] == 'tailscale')
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ts_zone_section = s['.name'];
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});
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uci.foreach('firewall', 'forwarding', function(s) {
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if (s['src'] == 'lan' && s['dest'] == 'tailscale') fwd_lan_to_ts = true;
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if (s['src'] == 'tailscale' && s['dest'] == 'lan') fwd_ts_to_lan = true;
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});
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if (ts_zone_section == null) {
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let zid = uci.add('firewall', 'zone');
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uci.set('firewall', zid, 'name', 'tailscale');
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uci.set('firewall', zid, 'input', 'ACCEPT');
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uci.set('firewall', zid, 'output', 'ACCEPT');
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uci.set('firewall', zid, 'forward', 'ACCEPT');
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uci.set('firewall', zid, 'masq', '1');
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uci.set('firewall', zid, 'mtu_fix', '1');
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uci.set('firewall', zid, 'network', ['tailscale']);
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changed_firewall = true;
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} else {
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let nets = uci.get('firewall', ts_zone_section, 'network');
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let net_list = [];
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let has_ts_net = false;
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if (type(nets) == 'array') {
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net_list = nets;
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} else if (type(nets) == 'string') {
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net_list = [nets];
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}
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// check if 'tailscale' is already in the list
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for (let n in net_list) {
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if (n == 'tailscale') {
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has_ts_net = true;
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break;
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}
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}
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if (!has_ts_net) {
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push(net_list, 'tailscale');
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uci.set('firewall', ts_zone_section, 'network', net_list);
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changed_firewall = true;
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}
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}
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// 3. config Forwarding
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if (!fwd_lan_to_ts) {
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let fid = uci.add('firewall', 'forwarding');
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uci.set('firewall', fid, 'src', 'lan');
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uci.set('firewall', fid, 'dest', 'tailscale');
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changed_firewall = true;
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}
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if (!fwd_ts_to_lan) {
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let fid = uci.add('firewall', 'forwarding');
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uci.set('firewall', fid, 'src', 'tailscale');
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uci.set('firewall', fid, 'dest', 'lan');
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changed_firewall = true;
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}
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// Exit node requires WAN <- tailscale forwarding
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let fwd_ts_to_wan = false;
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uci.foreach('firewall', 'forwarding', function(s) {
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if (s['src'] == 'tailscale' && s['dest'] == 'wan') fwd_ts_to_wan = true;
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});
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if (!fwd_ts_to_wan) {
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let fid = uci.add('firewall', 'forwarding');
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uci.set('firewall', fid, 'src', 'tailscale');
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uci.set('firewall', fid, 'dest', 'wan');
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changed_firewall = true;
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}
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// 4. save
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if (changed_network) {
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uci.save('network');
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uci.commit('network');
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exec('/etc/init.d/network reload');
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}
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if (changed_firewall) {
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uci.save('firewall');
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uci.commit('firewall');
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exec('/etc/init.d/firewall reload');
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}
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return {
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success: true,
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changed_network: changed_network,
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changed_firewall: changed_firewall,
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message: (changed_network || changed_firewall) ? 'Tailscale firewall/interface configuration applied.' : 'Tailscale firewall/interface already configured.'
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};
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} catch (e) {
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return { error: 'Exception in setup_firewall: ' + e + '\nStack: ' + (e.stacktrace || '') };
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}
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}
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};
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return { 'tailscale': methods };
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