Make GSO adaptive

docs/configuration/dns/rule.zh.md

@@ -379,7 +379,7 @@ Available values: `wifi`, `cellular`, `ethernet` and `other`.
 
 !!! failure "已在 sing-box 1.10.0 废弃"
 
-    `rule_set_ipcidr_match_source` 已重命名为 `rule_set_ip_cidr_match_source` 且将在 sing-box 1.11.0 移除。
+    `rule_set_ipcidr_match_source` 已重命名为 `rule_set_ip_cidr_match_source` 且将在 sing-box 1.11.0 中被移除。
 
 使规则集中的 `ip_cidr` 规则匹配源 IP。
 

docs/configuration/endpoint/wireguard.md

@@ -14,7 +14,6 @@ icon: material/new-box
   "system": false,
   "name": "",
   "mtu": 1408,
-  "gso": false,
   "address": [],
   "private_key": "",
   "listen_port": 10000,
@@ -36,6 +35,10 @@ icon: material/new-box
 }
 ```
 
+!!! note ""
+
+    You can ignore the JSON Array [] tag when the content is only one item
+
 ### Fields
 
 #### system
@@ -54,14 +57,6 @@ WireGuard MTU.
 
 `1408` will be used by default.
 
-#### gso
-
-!!! quote ""
-
-    Only supported on Linux.
-
-Try to enable generic segmentation offload.
-
 #### address
 
 ==Required==

docs/configuration/endpoint/wireguard.zh.md

@@ -14,7 +14,6 @@ icon: material/new-box
   "system": false,
   "name": "",
   "mtu": 1408,
-  "gso": false,
   "address": [],
   "private_key": "",
   "listen_port": 10000,
@@ -36,6 +35,10 @@ icon: material/new-box
 }
 ```
 
+!!! note ""
+
+    当内容只有一项时，可以忽略 JSON 数组 [] 标签
+
 ### 字段
 
 #### system_interface
@@ -54,14 +57,6 @@ WireGuard MTU。
 
 默认使用 1408。
 
-#### gso
-
-!!! quote ""
-
-    仅支持 Linux。
-
-尝试启用通用分段卸载。
-
 #### address
 
 ==必填==

docs/configuration/inbound/tun.md

@@ -1,7 +1,11 @@
 ---
-icon: material/new-box
+icon: material/alert-decagram
 ---
 
+!!! quote "Changes in sing-box 1.11.0"
+
+    :material-delete-alert: [gso](#gso)
+
 !!! quote "Changes in sing-box 1.10.0"
 
     :material-plus: [address](#address)  
@@ -46,16 +50,7 @@ icon: material/new-box
     "172.18.0.1/30",
     "fdfe:dcba:9876::1/126"
   ],
-  // deprecated
-  "inet4_address": [
-    "172.19.0.1/30"
-  ],
-  // deprecated
-  "inet6_address": [
-    "fdfe:dcba:9876::1/126"
-  ],
   "mtu": 9000,
-  "gso": false,
   "auto_route": true,
   "iproute2_table_index": 2022,
   "iproute2_rule_index": 9000,
@@ -69,28 +64,11 @@ icon: material/new-box
     "::/1",
     "8000::/1"
   ],
-  // deprecated
-  "inet4_route_address": [
-    "0.0.0.0/1",
-    "128.0.0.0/1"
-  ],
-  // deprecated
-  "inet6_route_address": [
-    "::/1",
-    "8000::/1"
-  ],
+  
   "route_exclude_address": [
     "192.168.0.0/16",
     "fc00::/7"
   ],
-  // deprecated
-  "inet4_route_exclude_address": [
-    "192.168.0.0/16"
-  ],
-  // deprecated
-  "inet6_route_exclude_address": [
-    "fc00::/7"
-  ],
   "route_address_set": [
     "geoip-cloudflare"
   ],
@@ -137,8 +115,31 @@ icon: material/new-box
       "match_domain": []
     }
   },
-  ...
-  // Listen Fields
+
+  // Deprecated
+  "gso": false,
+  "inet4_address": [
+    "172.19.0.1/30"
+  ],
+  "inet6_address": [
+    "fdfe:dcba:9876::1/126"
+  ],
+  "inet4_route_address": [
+    "0.0.0.0/1",
+    "128.0.0.0/1"
+  ],
+  "inet6_route_address": [
+    "::/1",
+    "8000::/1"
+  ],
+  "inet4_route_exclude_address": [
+    "192.168.0.0/16"
+  ],
+  "inet6_route_exclude_address": [
+    "fc00::/7"
+  ],
+  
+  ... // Listen Fields
 }
 ```
 
@@ -166,7 +167,7 @@ IPv4 and IPv6 prefix for the tun interface.
 
 !!! failure "Deprecated in sing-box 1.10.0"
 
-    `inet4_address` is merged to `address` and will be removed in sing-box 1.11.0.
+    `inet4_address` is merged to `address` and will be removed in sing-box 1.12.0.
 
 IPv4 prefix for the tun interface.
 
@@ -174,7 +175,7 @@ IPv4 prefix for the tun interface.
 
 !!! failure "Deprecated in sing-box 1.10.0"
 
-    `inet6_address` is merged to `address` and will be removed in sing-box 1.11.0.
+    `inet6_address` is merged to `address` and will be removed in sing-box 1.12.0.
 
 IPv6 prefix for the tun interface.
 
@@ -184,6 +185,10 @@ The maximum transmission unit.
 
 #### gso
 
+!!! failure "Deprecated in sing-box 1.11.0"
+
+    GSO has no advantages for transparent proxy scenarios, is deprecated and no longer works, and will be removed in sing-box 1.12.0.
+
 !!! question "Since sing-box 1.8.0"
 
 !!! quote ""
@@ -284,7 +289,7 @@ Use custom routes instead of default when `auto_route` is enabled.
 
 !!! failure "Deprecated in sing-box 1.10.0"
 
-`inet4_route_address` is deprecated and will be removed in sing-box 1.11.0, please use [route_address](#route_address)
+`inet4_route_address` is deprecated and will be removed in sing-box 1.12.0, please use [route_address](#route_address)
 instead.
 
 Use custom routes instead of default when `auto_route` is enabled.
@@ -293,7 +298,7 @@ Use custom routes instead of default when `auto_route` is enabled.
 
 !!! failure "Deprecated in sing-box 1.10.0"
 
-`inet6_route_address` is deprecated and will be removed in sing-box 1.11.0, please use [route_address](#route_address)
+`inet6_route_address` is deprecated and will be removed in sing-box 1.12.0, please use [route_address](#route_address)
 instead.
 
 Use custom routes instead of default when `auto_route` is enabled.
@@ -308,7 +313,7 @@ Exclude custom routes when `auto_route` is enabled.
 
 !!! failure "Deprecated in sing-box 1.10.0"
 
-`inet4_route_exclude_address` is deprecated and will be removed in sing-box 1.11.0, please
+`inet4_route_exclude_address` is deprecated and will be removed in sing-box 1.12.0, please
 use [route_exclude_address](#route_exclude_address) instead.
 
 Exclude custom routes when `auto_route` is enabled.
@@ -317,7 +322,7 @@ Exclude custom routes when `auto_route` is enabled.
 
 !!! failure "Deprecated in sing-box 1.10.0"
 
-`inet6_route_exclude_address` is deprecated and will be removed in sing-box 1.11.0, please
+`inet6_route_exclude_address` is deprecated and will be removed in sing-box 1.12.0, please
 use [route_exclude_address](#route_exclude_address) instead.
 
 Exclude custom routes when `auto_route` is enabled.

docs/configuration/inbound/tun.zh.md

@@ -1,8 +1,12 @@
 ---
-icon: material/new-box
+icon: material/alert-decagram
 ---
 
-!!! quote "Changes in sing-box 1.10.0"
+!!! quote "sing-box 1.11.0 中的更改"
+
+    :material-delete-alert: [gso](#gso)
+
+!!! quote "sing-box 1.10.0 中的更改"
 
     :material-plus: [address](#address)  
     :material-delete-clock: [inet4_address](#inet4_address)  
@@ -46,16 +50,7 @@ icon: material/new-box
     "172.18.0.1/30",
     "fdfe:dcba:9876::1/126"
   ],
-  // 已弃用
-  "inet4_address": [
-    "172.19.0.1/30"
-  ],
-  // 已弃用
-  "inet6_address": [
-    "fdfe:dcba:9876::1/126"
-  ],
   "mtu": 9000,
-  "gso": false,
   "auto_route": true,
   "iproute2_table_index": 2022,
   "iproute2_rule_index": 9000,
@@ -69,28 +64,11 @@ icon: material/new-box
     "::/1",
     "8000::/1"
   ],
-  // 已弃用
-  "inet4_route_address": [
-    "0.0.0.0/1",
-    "128.0.0.0/1"
-  ],
-  // 已弃用
-  "inet6_route_address": [
-    "::/1",
-    "8000::/1"
-  ],
+
   "route_exclude_address": [
     "192.168.0.0/16",
     "fc00::/7"
   ],
-  // 已弃用
-  "inet4_route_exclude_address": [
-    "192.168.0.0/16"
-  ],
-  // 已弃用
-  "inet6_route_exclude_address": [
-    "fc00::/7"
-  ],
   "route_address_set": [
     "geoip-cloudflare"
   ],
@@ -137,6 +115,29 @@ icon: material/new-box
       "match_domain": []
     }
   },
+
+  // 已弃用
+  "gso": false,
+  "inet4_address": [
+    "172.19.0.1/30"
+  ],
+  "inet6_address": [
+    "fdfe:dcba:9876::1/126"
+  ],
+  "inet4_route_address": [
+    "0.0.0.0/1",
+    "128.0.0.0/1"
+  ],
+  "inet6_route_address": [
+    "::/1",
+    "8000::/1"
+  ],
+  "inet4_route_exclude_address": [
+    "192.168.0.0/16"
+  ],
+  "inet6_route_exclude_address": [
+    "fc00::/7"
+  ],
   
   ... // 监听字段
 }
@@ -168,7 +169,7 @@ tun 接口的 IPv4 和 IPv6 前缀。
 
 !!! failure "已在 sing-box 1.10.0 废弃"
 
-    `inet4_address` 已合并到 `address` 且将在 sing-box 1.11.0 移除。
+    `inet4_address` 已合并到 `address` 且将在 sing-box 1.12.0 中被移除。
 
 ==必填==
 
@@ -178,7 +179,7 @@ tun 接口的 IPv4 前缀。
 
 !!! failure "已在 sing-box 1.10.0 废弃"
 
-    `inet6_address` 已合并到 `address` 且将在 sing-box 1.11.0 移除。
+    `inet6_address` 已合并到 `address` 且将在 sing-box 1.12.0 中被移除。
 
 tun 接口的 IPv6 前缀。
 
@@ -188,6 +189,10 @@ tun 接口的 IPv6 前缀。
 
 #### gso
 
+!!! failure "已在 sing-box 1.11.0 废弃"
+
+    GSO 对于透明代理场景没有优势，已废弃和不再生效，且将在 sing-box 1.12.0 中被移除。
+
 !!! question "自 sing-box 1.8.0 起"
 
 !!! quote ""
@@ -288,7 +293,7 @@ tun 接口的 IPv6 前缀。
 
 !!! failure "已在 sing-box 1.10.0 废弃"
 
-    `inet4_route_address` 已合并到 `route_address` 且将在 sing-box 1.11.0 移除。
+    `inet4_route_address` 已合并到 `route_address` 且将在 sing-box 1.12.0 中被移除。
 
 启用 `auto_route` 时使用自定义路由而不是默认路由。
 
@@ -296,7 +301,7 @@ tun 接口的 IPv6 前缀。
 
 !!! failure "已在 sing-box 1.10.0 废弃"
 
-    `inet6_route_address` 已合并到 `route_address` 且将在 sing-box 1.11.0 移除。
+    `inet6_route_address` 已合并到 `route_address` 且将在 sing-box 1.12.0 中被移除。
 
 启用 `auto_route` 时使用自定义路由而不是默认路由。
 
@@ -310,7 +315,7 @@ tun 接口的 IPv6 前缀。
 
 !!! failure "已在 sing-box 1.10.0 废弃"
 
-    `inet4_route_exclude_address` 已合并到 `route_exclude_address` 且将在 sing-box 1.11.0 移除。
+    `inet4_route_exclude_address` 已合并到 `route_exclude_address` 且将在 sing-box 1.12.0 中被移除。
 
 启用 `auto_route` 时排除自定义路由。
 
@@ -318,7 +323,7 @@ tun 接口的 IPv6 前缀。
 
 !!! failure "已在 sing-box 1.10.0 废弃"
 
-    `inet6_route_exclude_address` 已合并到 `route_exclude_address` 且将在 sing-box 1.11.0 移除。
+    `inet6_route_exclude_address` 已合并到 `route_exclude_address` 且将在 sing-box 1.12.0 中被移除。
 
 启用 `auto_route` 时排除自定义路由。
 

docs/configuration/outbound/wireguard.md

@@ -6,6 +6,10 @@ icon: material/delete-clock
 
     WireGuard outbound is deprecated and will be removed in sing-box 1.13.0, check [Migration](/migration/#migrate-wireguard-outbound-to-endpoint).
 
+!!! quote "Changes in sing-box 1.11.0"
+
+    :material-delete-alert: [gso](#gso)
+
 !!! quote "Changes in sing-box 1.8.0"
     
     :material-plus: [gso](#gso)  
@@ -20,7 +24,6 @@ icon: material/delete-clock
   "server": "127.0.0.1",
   "server_port": 1080,
   "system_interface": false,
-  "gso": false,
   "interface_name": "wg0",
   "local_address": [
     "10.0.0.1/32"
@@ -45,6 +48,10 @@ icon: material/delete-clock
   "mtu": 1408,
   "network": "tcp",
 
+  // Deprecated
+  
+  "gso": false,
+
   ... // Dial Fields
 }
 ```
@@ -77,6 +84,10 @@ Custom interface name for system interface.
 
 #### gso
 
+!!! failure "Deprecated in sing-box 1.11.0"
+
+    GSO will be automatically enabled when available since sing-box 1.11.0.
+
 !!! question "Since sing-box 1.8.0"
 
 !!! quote ""

docs/configuration/outbound/wireguard.zh.md

@@ -6,6 +6,10 @@ icon: material/delete-clock
 
     WireGuard 出站已被启用，且将在 sing-box 1.13.0 中被移除，参阅 [迁移指南](/migration/#migrate-wireguard-outbound-to-endpoint)。
 
+!!! quote "sing-box 1.11.0 中的更改"
+
+    :material-delete-alert: [gso](#gso)
+
 !!! quote "sing-box 1.8.0 中的更改"
 
     :material-plus: [gso](#gso)  
@@ -20,7 +24,6 @@ icon: material/delete-clock
   "server": "127.0.0.1",
   "server_port": 1080,
   "system_interface": false,
-  "gso": false,
   "interface_name": "wg0",
   "local_address": [
     "10.0.0.1/32"
@@ -32,6 +35,10 @@ icon: material/delete-clock
   "workers": 4,
   "mtu": 1408,
   "network": "tcp",
+  
+  // 废弃的
+  
+  "gso": false,
 
   ... // 拨号字段
 }
@@ -65,6 +72,10 @@ icon: material/delete-clock
 
 #### gso
 
+!!! failure "已在 sing-box 1.11.0 废弃"
+
+    自 sing-box 1.11.0 起，GSO 将可用时自动启用。
+
 !!! question "自 sing-box 1.8.0 起"
 
 !!! quote ""

docs/configuration/route/rule.zh.md

@@ -388,7 +388,7 @@ Available values: `wifi`, `cellular`, `ethernet` and `other`.
 
 !!! failure "已在 sing-box 1.10.0 废弃"
 
-    `rule_set_ipcidr_match_source` 已重命名为 `rule_set_ip_cidr_match_source` 且将在 sing-box 1.11.0 移除。
+    `rule_set_ipcidr_match_source` 已重命名为 `rule_set_ip_cidr_match_source` 且将在 sing-box 1.11.0 中被移除。
 
 使规则集中的 `ip_cidr` 规则匹配源 IP。
 

docs/deprecated.md

@@ -35,6 +35,12 @@ check [Migration](../migration/#migrate-wireguard-outbound-to-endpoint).
 
 Old outbound will be removed in sing-box 1.13.0.
 
+#### GSO option in TUN
+
+GSO has no advantages for transparent proxy scenarios, is deprecated and no longer works in TUN.
+
+Old fields will be removed in sing-box 1.13.0.
+
 ## 1.10.0
 
 #### TUN address fields are merged

docs/deprecated.zh.md

@@ -34,6 +34,12 @@ WireGuard 出站已废弃且可以通过端点替代，
 
 旧出站将在 sing-box 1.13.0 中被移除。
 
+#### TUN 的 GSO 字段
+
+GSO 对透明代理场景没有优势，已废弃且在 TUN 中不再起作用。
+
+旧字段将在 sing-box 1.13.0 中被移除。
+
 ## 1.10.0
 
 #### Match source 规则项已重命名

docs/migration.md

@@ -242,7 +242,6 @@ WireGuard outbound is deprecated and can be replaced by endpoint.
           "system": true,
           "name": "wg0",
           "mtu": 1408,
-          "gso": true,
           "address": [
             "10.0.0.2/32"
           ],

docs/migration.zh.md

@@ -243,7 +243,6 @@ WireGuard 出站已被弃用，且可以被端点替代。
           "system": true,
           "name": "wg0",
           "mtu": 1408,
-          "gso": true,
           "address": [
             "10.0.0.2/32"
           ],

experimental/deprecated/constants.go

@@ -44,10 +44,17 @@ func (n Note) Message() string {
 }
 
 func (n Note) MessageWithLink() string {
-	return F.ToString(
-		n.Description, " is deprecated in sing-box ", n.DeprecatedVersion,
-		" and will be removed in sing-box ", n.ScheduledVersion, ", checkout documentation for migration: ", n.MigrationLink,
-	)
+	if n.MigrationLink != "" {
+		return F.ToString(
+			n.Description, " is deprecated in sing-box ", n.DeprecatedVersion,
+			" and will be removed in sing-box ", n.ScheduledVersion, ", checkout documentation for migration: ", n.MigrationLink,
+		)
+	} else {
+		return F.ToString(
+			n.Description, " is deprecated in sing-box ", n.DeprecatedVersion,
+			" and will be removed in sing-box ", n.ScheduledVersion, ".",
+		)
+	}
 }
 
 var OptionBadMatchSource = Note{
@@ -122,6 +129,23 @@ var OptionWireGuardOutbound = Note{
 	MigrationLink:     "https://sing-box.sagernet.org/migration/#migrate-wireguard-outbound-to-endpoint",
 }
 
+var OptionWireGuardGSO = Note{
+	Name:              "wireguard-gso",
+	Description:       "GSO option in wireguard outbound",
+	DeprecatedVersion: "1.11.0",
+	ScheduledVersion:  "1.13.0",
+	EnvName:           "WIREGUARD_GSO",
+	MigrationLink:     "https://sing-box.sagernet.org/migration/#migrate-wireguard-outbound-to-endpoint",
+}
+
+var OptionTUNGSO = Note{
+	Name:              "tun-gso",
+	Description:       "GSO option in tun",
+	DeprecatedVersion: "1.11.0",
+	ScheduledVersion:  "1.12.0",
+	EnvName:           "TUN_GSO",
+}
+
 var Options = []Note{
 	OptionBadMatchSource,
 	OptionGEOIP,
@@ -131,4 +155,6 @@ var Options = []Note{
 	OptionInboundOptions,
 	OptionDestinationOverrideFields,
 	OptionWireGuardOutbound,
+	OptionWireGuardGSO,
+	OptionTUNGSO,
 }

experimental/deprecated/stderr.go

@@ -34,5 +34,5 @@ func (f *stderrManager) ReportDeprecated(feature Note) {
 		return
 	}
 	f.logger.Error(feature.MessageWithLink())
-	f.logger.Fatal("to continuing using this feature, set ENABLE_DEPRECATED_" + feature.EnvName + "=true")
+	f.logger.Fatal("to continuing using this feature, set environment variable ENABLE_DEPRECATED_" + feature.EnvName + "=true")
 }

option/tun.go

@@ -13,7 +13,6 @@ import (
 type TunInboundOptions struct {
 	InterfaceName          string                           `json:"interface_name,omitempty"`
 	MTU                    uint32                           `json:"mtu,omitempty"`
-	GSO                    bool                             `json:"gso,omitempty"`
 	Address                badoption.Listable[netip.Prefix] `json:"address,omitempty"`
 	AutoRoute              bool                             `json:"auto_route,omitempty"`
 	IPRoute2TableIndex     int                              `json:"iproute2_table_index,omitempty"`
@@ -40,6 +39,8 @@ type TunInboundOptions struct {
 	Platform               *TunPlatformOptions              `json:"platform,omitempty"`
 	InboundOptions
 
+	// Deprecated: removed
+	GSO bool `json:"gso,omitempty"`
 	// Deprecated: merged to Address
 	Inet4Address badoption.Listable[netip.Prefix] `json:"inet4_address,omitempty"`
 	// Deprecated: merged to Address

option/wireguard.go

@@ -10,7 +10,6 @@ type WireGuardEndpointOptions struct {
 	System     bool                             `json:"system,omitempty"`
 	Name       string                           `json:"name,omitempty"`
 	MTU        uint32                           `json:"mtu,omitempty"`
-	GSO        bool                             `json:"gso,omitempty"`
 	Address    badoption.Listable[netip.Prefix] `json:"address"`
 	PrivateKey string                           `json:"private_key"`
 	ListenPort uint16                           `json:"listen_port,omitempty"`

protocol/tun/inbound.go

@@ -62,14 +62,14 @@ type Inbound struct {
 func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.TunInboundOptions) (adapter.Inbound, error) {
 	address := options.Address
 	var deprecatedAddressUsed bool
+
 	//nolint:staticcheck
-	//goland:noinspection GoDeprecation
 	if len(options.Inet4Address) > 0 {
 		address = append(address, options.Inet4Address...)
 		deprecatedAddressUsed = true
 	}
+
 	//nolint:staticcheck
-	//goland:noinspection GoDeprecation
 	if len(options.Inet6Address) > 0 {
 		address = append(address, options.Inet6Address...)
 		deprecatedAddressUsed = true
@@ -82,14 +82,14 @@ func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLo
 	})
 
 	routeAddress := options.RouteAddress
+
 	//nolint:staticcheck
-	//goland:noinspection GoDeprecation
 	if len(options.Inet4RouteAddress) > 0 {
 		routeAddress = append(routeAddress, options.Inet4RouteAddress...)
 		deprecatedAddressUsed = true
 	}
+
 	//nolint:staticcheck
-	//goland:noinspection GoDeprecation
 	if len(options.Inet6RouteAddress) > 0 {
 		routeAddress = append(routeAddress, options.Inet6RouteAddress...)
 		deprecatedAddressUsed = true
@@ -102,14 +102,14 @@ func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLo
 	})
 
 	routeExcludeAddress := options.RouteExcludeAddress
+
 	//nolint:staticcheck
-	//goland:noinspection GoDeprecation
 	if len(options.Inet4RouteExcludeAddress) > 0 {
 		routeExcludeAddress = append(routeExcludeAddress, options.Inet4RouteExcludeAddress...)
 		deprecatedAddressUsed = true
 	}
+
 	//nolint:staticcheck
-	//goland:noinspection GoDeprecation
 	if len(options.Inet6RouteExcludeAddress) > 0 {
 		routeExcludeAddress = append(routeExcludeAddress, options.Inet6RouteExcludeAddress...)
 		deprecatedAddressUsed = true
@@ -125,6 +125,11 @@ func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLo
 		deprecated.Report(ctx, deprecated.OptionTUNAddressX)
 	}
 
+	//nolint:staticcheck
+	if options.GSO {
+		deprecated.Report(ctx, deprecated.OptionTUNGSO)
+	}
+
 	tunMTU := options.MTU
 	if tunMTU == 0 {
 		tunMTU = 9000
@@ -178,7 +183,6 @@ func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLo
 		tunOptions: tun.Options{
 			Name:                     options.InterfaceName,
 			MTU:                      tunMTU,
-			GSO:                      options.GSO,
 			Inet4Address:             inet4Address,
 			Inet6Address:             inet6Address,
 			AutoRoute:                options.AutoRoute,

protocol/wireguard/endpoint.go

@@ -51,8 +51,6 @@ func NewEndpoint(ctx context.Context, router adapter.Router, logger log.ContextL
 	}
 	if options.Detour == "" {
 		options.IsWireGuardListener = true
-	} else if options.GSO {
-		return nil, E.New("gso is conflict with detour")
 	}
 	outboundDialer, err := dialer.New(ctx, options.DialerOptions)
 	if err != nil {
@@ -72,7 +70,6 @@ func NewEndpoint(ctx context.Context, router adapter.Router, logger log.ContextL
 		},
 		Name:       options.Name,
 		MTU:        options.MTU,
-		GSO:        options.GSO,
 		Address:    options.Address,
 		PrivateKey: options.PrivateKey,
 		ListenPort: options.ListenPort,

protocol/wireguard/outbound.go

@@ -42,6 +42,9 @@ type Outbound struct {
 
 func NewOutbound(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.LegacyWireGuardOutboundOptions) (adapter.Outbound, error) {
 	deprecated.Report(ctx, deprecated.OptionWireGuardOutbound)
+	if options.GSO {
+		deprecated.Report(ctx, deprecated.OptionWireGuardGSO)
+	}
 	outbound := &Outbound{
 		Adapter:        outbound.NewAdapterWithDialerOptions(C.TypeWireGuard, tag, []string{N.NetworkTCP, N.NetworkUDP}, options.DialerOptions),
 		ctx:            ctx,
@@ -89,7 +92,6 @@ func NewOutbound(ctx context.Context, router adapter.Router, logger log.ContextL
 		},
 		Name:       options.InterfaceName,
 		MTU:        options.MTU,
-		GSO:        options.GSO,
 		Address:    options.LocalAddress,
 		PrivateKey: options.PrivateKey,
 		ResolvePeer: func(domain string) (netip.Addr, error) {

transport/wireguard/device.go

@@ -28,7 +28,6 @@ type DeviceOptions struct {
 	CreateDialer   func(interfaceName string) N.Dialer
 	Name           string
 	MTU            uint32
-	GSO            bool
 	Address        []netip.Prefix
 	AllowedAddress []netip.Prefix
 }

transport/wireguard/device_system.go

@@ -12,7 +12,6 @@ import (
 	"github.com/sagernet/sing-box/adapter"
 	"github.com/sagernet/sing-tun"
 	"github.com/sagernet/sing/common"
-	E "github.com/sagernet/sing/common/exceptions"
 	M "github.com/sagernet/sing/common/metadata"
 	N "github.com/sagernet/sing/common/network"
 	"github.com/sagernet/sing/service"
@@ -64,7 +63,7 @@ func (w *systemDevice) Start() error {
 			return it.Addr().Is6()
 		}),
 		MTU:            w.options.MTU,
-		GSO:            w.options.GSO,
+		GSO:            true,
 		InterfaceScope: true,
 		Inet4RouteAddress: common.Filter(w.options.AllowedAddress, func(it netip.Prefix) bool {
 			return it.Addr().Is4()
@@ -88,12 +87,8 @@ func (w *systemDevice) Start() error {
 	}
 	w.options.Logger.Info("started at ", w.options.Name)
 	w.device = tunInterface
-	if w.options.GSO {
-		batchTUN, isBatchTUN := tunInterface.(tun.LinuxTUN)
-		if !isBatchTUN {
-			tunInterface.Close()
-			return E.New("GSO is not supported on current platform")
-		}
+	batchTUN, isBatchTUN := tunInterface.(tun.LinuxTUN)
+	if isBatchTUN {
 		w.batchDevice = batchTUN
 	}
 	w.events <- wgTun.EventUp

transport/wireguard/endpoint.go

@@ -104,7 +104,6 @@ func NewEndpoint(options EndpointOptions) (*Endpoint, error) {
 		CreateDialer:   options.CreateDialer,
 		Name:           options.Name,
 		MTU:            options.MTU,
-		GSO:            options.GSO,
 		Address:        options.Address,
 		AllowedAddress: allowedAddresses,
 	}

transport/wireguard/endpoint_options.go

@@ -21,7 +21,6 @@ type EndpointOptions struct {
 	CreateDialer func(interfaceName string) N.Dialer
 	Name         string
 	MTU          uint32
-	GSO          bool
 	Address      []netip.Prefix
 	PrivateKey   string
 	ListenPort   uint16