Disable default global scan timeout

SKILL.md

@@ -52,7 +52,7 @@ fscan -h 192.168.1.0/24 -silent | jq 'select(.type=="VULN")'
 | `-t` | 端口扫描线程数 | `600` |
 | `-mt` | 模块线程数 | `20` |
 | `-time` | 连接超时（秒） | `3` |
-| `-gt` | 全局超时（秒） | `180` |
+| `-gt` | 全局超时（秒，0 表示不限制） | `0` |
 | `-np` | 跳过存活检测 | `false` |
 | `-ntp` | 禁用 TCP 补充探测 | `false` |
 | `-ao` | 仅存活检测 | `false` |

common/flag.go

@@ -110,7 +110,7 @@ func Flag(Info *HostInfo) error {
 	flag.IntVar(&fv.ThreadNum, "t", 600, i18n.GetText("flag_thread_num"))
 	flag.Int64Var(&fv.TimeoutSec, "time", 3, i18n.GetText("flag_timeout"))
 	flag.IntVar(&fv.ModuleThreadNum, "mt", 20, i18n.GetText("flag_module_thread_num"))
-	flag.Int64Var(&fv.GlobalTimeout, "gt", 180, i18n.GetText("flag_global_timeout"))
+	flag.Int64Var(&fv.GlobalTimeout, "gt", 0, i18n.GetText("flag_global_timeout"))
 	flag.BoolVar(&fv.DisablePing, "np", false, i18n.GetText("flag_disable_ping"))
 	flag.BoolVar(&fv.DisableTcpProbe, "ntp", false, i18n.GetText("flag_disable_tcp_probe"))
 	flag.BoolVar(&fv.DisableSubnetProbe, "nsp", false, i18n.GetText("flag_disable_subnet_probe"))

common/flag_test.go

@@ -34,7 +34,7 @@ func TestBuildConfigFromFlags_ScanControl(t *testing.T) {
 				ThreadNum:       600,
 				ModuleThreadNum: 20,
 				TimeoutSec:      3,
-				GlobalTimeout:   180,
+				GlobalTimeout:   0,
 			},
 			validate: func(t *testing.T, cfg *Config) {
 				if cfg.Mode != "all" {
@@ -49,6 +49,9 @@ func TestBuildConfigFromFlags_ScanControl(t *testing.T) {
 				if cfg.Timeout != 3*time.Second {
 					t.Errorf("Timeout = %v, want %v", cfg.Timeout, 3*time.Second)
 				}
+				if cfg.GlobalTimeout != 0 {
+					t.Errorf("GlobalTimeout = %v, want disabled", cfg.GlobalTimeout)
+				}
 			},
 		},
 		{

common/i18n/locales/en.yaml

@@ -25,9 +25,7 @@ flag_timeout:
 flag_module_thread_num:
   other: "Module thread count"
 flag_global_timeout:
-  other: "Global timeout"
-global_timeout_adjusted:
-  other: "Large scan detected, global timeout adjusted from {{.V0}}s to {{.V1}}s (use -gt to override)"
+  other: "Global timeout in seconds (0 means unlimited)"
 global_timeout_exceeded:
   other: "Global timeout reached (-gt {{.V0}}s), scan aborted. Use -gt to increase or set to 0 to disable"
 flag_disable_ping:

common/i18n/locales/zh.yaml

@@ -25,9 +25,7 @@ flag_timeout:
 flag_module_thread_num:
   other: "模块线程数"
 flag_global_timeout:
-  other: "全局超时时间"
-global_timeout_adjusted:
-  other: "扫描规模较大，全局超时从 {{.V0}}s 自动调整为 {{.V1}}s（可用 -gt 手动指定）"
+  other: "全局超时时间（秒，0 表示不限制）"
 global_timeout_exceeded:
   other: "全局超时已到（-gt {{.V0}}s），扫描被终止。大规模扫描请用 -gt 调大超时或设为 0 禁用"
 flag_disable_ping:

core/scanner.go

@@ -13,7 +13,6 @@ import (
 	"github.com/shadow1ng/fscan/common"
 	"github.com/shadow1ng/fscan/common/i18n"
 	"github.com/shadow1ng/fscan/common/output"
-	"github.com/shadow1ng/fscan/common/parsers"
 	"github.com/shadow1ng/fscan/plugins"
 	"github.com/shadow1ng/fscan/webscan/lib"
 )
@@ -97,15 +96,6 @@ func RunScan(ctx context.Context, info common.HostInfo, session *common.ScanSess
 	start := time.Now()
 	config := session.Config
 
-	// 全局超时自适应：用户未显式指定 -gt 时，根据扫描规模自动调大
-	if !config.GlobalTimeoutExplicit && config.GlobalTimeout > 0 {
-		if adjusted := estimateGlobalTimeout(config, session); adjusted > config.GlobalTimeout {
-			session.LogInfo(i18n.Tr("global_timeout_adjusted",
-				int(config.GlobalTimeout.Seconds()), int(adjusted.Seconds())))
-			config.GlobalTimeout = adjusted
-		}
-	}
-
 	// 全局超时：-gt 参数设置整个扫描的硬性截止时间
 	var cancel context.CancelFunc
 	if config.GlobalTimeout > 0 {
@@ -499,52 +489,3 @@ func addCommonDetails(result *plugins.Result, details map[string]interface{}) {
 		details["server"] = result.Server
 	}
 }
-
-func estimateGlobalTimeout(config *common.Config, session *common.ScanSession) time.Duration {
-	portCount := int64(len(parsers.ParsePort(config.Target.Ports)))
-	if portCount == 0 {
-		portCount = 10
-	}
-
-	var hostFile string
-	var hostStr string
-	if session.Params != nil {
-		hostFile = session.Params.HostsFile
-		hostStr = session.Params.Host
-	}
-	hostCount := parsers.EstimateHostCount(hostStr, hostFile)
-	if hostCount <= 0 {
-		hostCount = 1
-	}
-
-	totalTasks := hostCount * portCount
-	threads := int64(config.ThreadNum)
-	if threads <= 0 {
-		threads = 600
-	}
-
-	// 端口扫描：平均每个任务约 50ms（大部分连接快速失败）
-	portScanSec := float64(totalTasks) * 0.05 / float64(threads)
-
-	// 插件扫描：开放率随端口数下降（全端口约 0.1%，少量端口约 5%）
-	openRate := 0.05
-	if portCount > 1000 {
-		openRate = 0.002
-	} else if portCount > 100 {
-		openRate = 0.01
-	}
-	moduleThreads := float64(config.ModuleThreadNum)
-	if moduleThreads <= 0 {
-		moduleThreads = 20
-	}
-	pluginSec := float64(totalTasks) * openRate * 2.0 / moduleThreads
-	// 总估算 + 20% 余量
-	estimatedSec := (portScanSec + pluginSec) * 1.2
-
-	const maxTimeout = 2 * time.Hour
-	estimated := time.Duration(estimatedSec) * time.Second
-	if estimated > maxTimeout {
-		estimated = maxTimeout
-	}
-	return estimated
-}

pkg/fscan/scanner.go

@@ -408,7 +408,7 @@ func buildFlagVars(config Config, target Target) *common.FlagVars {
 		ThreadNum:           threadNum,
 		ModuleThreadNum:     moduleThreads,
 		TimeoutSec:          timeout,
-		GlobalTimeout:       180,
+		GlobalTimeout:       0,
 		DisablePing:         config.DisablePing,
 		DisableTcpProbe:     config.DisableTCPProbe,
 		DisableSubnetProbe:  config.DisableSubnetProbe,

pkg/fscan/scanner_test.go

@@ -667,6 +667,9 @@ func TestBuildFlagVarsCustomValues(t *testing.T) {
 	if fv.TimeoutSec != 10 {
 		t.Fatalf("TimeoutSec = %d, want 10", fv.TimeoutSec)
 	}
+	if fv.GlobalTimeout != 0 {
+		t.Fatalf("GlobalTimeout = %d, want disabled", fv.GlobalTimeout)
+	}
 	if fv.WebTimeout != 15 {
 		t.Fatalf("WebTimeout = %d, want 15", fv.WebTimeout)
 	}