fix(network): auto-detect wired iface and ping via -I for hasInternet

- Scan sysfs for carrier when CLAWD_ETH_IFACE unset (end0/enp* etc.)
- Explicit CLAWD_ETH_IFACE still pins a single interface
- Ping fallback uses -I wired iface when default route fails (e.g. AP on wlan)
- Exclude can/docker/veth/wl* and similar from auto scan
- Clarify client log when waiting for WAN

Made-with: Cursor

lib/network.js

@@ -9,43 +9,91 @@ const AP_SSID_PREFIX = 'ClawBox-';
 const AP_IP          = '10.42.0.1';
 const AP_PASSWORD    = '12345678';
 const AP_IFACE       = process.env.CLAWD_WIFI_IFACE || '';
-const ETH_IFACE      = process.env.CLAWD_ETH_IFACE  || 'eth0';
 const CON_NAME       = 'clawd-hotspot';
 
-/**
- * 检查有线网卡物理链路是否接通（读 sysfs carrier，无延迟）
- */
-function hasWiredCarrier() {
-  try {
-    const carrier = fs.readFileSync(`/sys/class/net/${ETH_IFACE}/carrier`, 'utf8').trim();
-    return carrier === '1';
-  } catch (_) {
-    return false;
-  }
+/** 非 WiFi、非典型虚拟接口，用于自动发现有线口（如 end0、enp*，而非仅 eth0） */
+function _isExcludedVirtualIface(name) {
+  if (name === 'lo' || name === 'bonding_masters') return true;
+  if (name.startsWith('wl')) return true;
+  if (name.startsWith('docker')) return true;
+  if (name.startsWith('veth')) return true;
+  if (name.startsWith('virbr')) return true;
+  if (name.startsWith('br-')) return true;
+  if (name.startsWith('tun') || name.startsWith('tap')) return true;
+  if (name.startsWith('wg') || name.startsWith('bond')) return true;
+  if (name.startsWith('can')) return true;
+  return false;
 }
 
 /**
- * 检测是否有互联网连接（尝试 DNS 解析 + HTTP 连通性）
+ * 返回当前链路 up 的有线网卡名。
+ * 若设置 CLAWD_ETH_IFACE，只认该接口；否则扫描 sysfs（与仅默认 eth0 相比适配更多板型）。
  */
-function hasInternet() {
-  // 物理层快检：无 WiFi STA 且有线 carrier=0 → 立即返回 false（nmcli 有缓存，不可信）
-  if (!isWifiStaConnected() && !hasWiredCarrier()) return false;
+function getWiredIfaceWithCarrier() {
+  const explicit = process.env.CLAWD_ETH_IFACE;
+  if (explicit) {
+    try {
+      if (fs.readFileSync(`/sys/class/net/${explicit}/carrier`, 'utf8').trim() === '1') {
+        return explicit;
+      }
+    } catch (_) {}
+    return null;
+  }
 
-  // 优先用 nmcli 的 connectivity check
   try {
-    const out = run('nmcli networking connectivity check').trim();
-    if (out === 'full' || out === 'limited') return true;
+    const names = fs.readdirSync('/sys/class/net');
+    for (const name of names.sort()) {
+      if (_isExcludedVirtualIface(name)) continue;
+      try {
+        if (fs.readFileSync(`/sys/class/net/${name}/carrier`, 'utf8').trim() === '1') {
+          return name;
+        }
+      } catch (_) {}
+    }
   } catch (_) {}
 
-  // 兜底：ping DNS
+  return null;
+}
+
+/**
+ * 是否存在任一带 carrier 的有线接口（无延迟）
+ */
+function hasWiredCarrier() {
+  return getWiredIfaceWithCarrier() !== null;
+}
+
+function _tryPingInternet() {
   try {
     run('ping -c 1 -W 3 8.8.8.8');
     return true;
   } catch (_) {}
 
+  // 开热点时默认路由可能走 wlan，无 -I 的 ping 会误判；指定有线口再试
+  const wired = getWiredIfaceWithCarrier();
+  if (wired) {
+    try {
+      run(`ping -c 1 -W 3 -I ${wired} 8.8.8.8`);
+      return true;
+    } catch (_) {}
+  }
   return false;
 }
 
+/**
+ * 检测是否有互联网连接（nmcli 连通性 + ping 兜底）
+ */
+function hasInternet() {
+  // 物理层快检：无 WiFi STA 且无任何有线 carrier → 立即 false（nmcli 有缓存，不可信）
+  if (!isWifiStaConnected() && !hasWiredCarrier()) return false;
+
+  try {
+    const out = run('nmcli networking connectivity check').trim();
+    if (out === 'full' || out === 'limited') return true;
+  } catch (_) {}
+
+  return _tryPingInternet();
+}
+
 /**
  * 获取默认 WiFi 接口名（wlan0 等）
  */
@@ -250,6 +298,7 @@ function getLocalIps() {
 module.exports = {
   hasInternet,
   hasWiredCarrier,
+  getWiredIfaceWithCarrier,
   hasSavedWifiConnection,
   isWifiStaConnected,
   getWifiIface,