feat: VPN 管理后台新增系统环境检测面板
- 新增 /api/admin/vpn/diag 端点,检测 TUN 创建能力、root、CAP_NET_ADMIN、ip_forward、MASQUERADE - Linux 下解析 /proc/self/status CapEff 位判断 CAP_NET_ADMIN,读 /proc/sys/net/ipv4/ip_forward,执行 iptables 检查 MASQUERADE - 非 Linux 平台显示"仅 Linux 适用" - 前端 VpnView 新增系统环境检测卡片,每项以勾叉标识并附修复提示
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@@ -0,0 +1,52 @@
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package vpn
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import (
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"os"
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"runtime"
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)
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type DiagResult struct {
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Platform string `json:"platform"`
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IsRoot bool `json:"is_root"`
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HasCapNetAdmin *bool `json:"has_cap_net_admin"`
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CapNetAdminNote string `json:"cap_net_admin_note,omitempty"`
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IPForward *bool `json:"ip_forward"`
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IPForwardNote string `json:"ip_forward_note,omitempty"`
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Masquerade *bool `json:"masquerade"`
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MasqueradeNote string `json:"masquerade_note,omitempty"`
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TUNCreate string `json:"tun_create"`
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TUNRunning bool `json:"tun_running"`
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TUNName string `json:"tun_name,omitempty"`
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}
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func Diag(svc *VpnService) DiagResult {
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r := DiagResult{Platform: runtime.GOOS, IsRoot: os.Getuid() == 0}
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if svc != nil {
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svc.mu.RLock()
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r.TUNRunning = svc.running
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if svc.tun != nil {
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r.TUNName = svc.tun.Name()
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}
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svc.mu.RUnlock()
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}
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if r.TUNRunning {
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r.TUNCreate = "ok: " + r.TUNName
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} else {
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r.TUNCreate = testTUNCreate()
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}
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fillPlatformDiag(&r)
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return r
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}
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func testTUNCreate() string {
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t, err := CreateTUN("")
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if err != nil {
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return "fail: " + err.Error()
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}
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name := t.Name()
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_ = t.Close()
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return "ok: " + name
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}
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