添加 tun 支持 #1814

nekohasekai · 2023-03-18T06:18:21Z

用例：

{
  "tun": {
    "inet4_address": "172.19.0.1/30",
    "stack": "system",
    "auto_route": true,
    "auto_detect_interface": true,
    "override_android_vpn": false
  },
  "outbounds": [
    {
      "protocol": "freedom"
    }
  ]
}

其他参数参考 https://sing-box.sagernet.org/configuration/inbound/tun/

yuhan6665

感谢大佬！有一个问题麻烦看下

我要学习一下如何在 windows 上开 tun。。是否按用例配置并确保 core 有管理员权限即可？另外这个 tun 在安卓上使用只需要开 override_android_vpn = true？有没有其它需要注意的？

app/dispatcher/default.go

nekohasekai · 2023-03-24T03:32:42Z

是否按用例配置并确保 core 有管理员权限即可？

是的。

另外这个 tun 在安卓上使用只需要开 override_android_vpn = true？

override_android_vpn 应该作为选项提供，在 android 使用时您需要自定义 core 以提供由平台创建的 tun 文件描述符。

有没有其它需要注意的？

确保启用 auto_route 代理所有流量时打开 auto_detect_interface 以避免流量循环。

yuhan6665 · 2023-03-26T02:59:24Z

在 windows 试了一下遇到两个问题
一个是 sing-tun 需要开 cgo？这个具体是为什么？目前 xray 的编译都是关掉的。我自己试验的时候交叉编译会有一点问题。
二是编译之后成功打开了 tun 但是 dispatch 似乎有点问题：

panic: file already closed

goroutine 13 [running]:
github.com/xtls/xray-core/common.Must(...)
	github.com/xtls/xray-core/common/common.go:23
github.com/xtls/xray-core/app/proxyman/outbound.(*Handler).Dispatch(0xc000300300?, {0x11fef00, 0xc000210180}, 0xc000228060)
	github.com/xtls/xray-core/app/proxyman/outbound/handler.go:160 +0x465
github.com/xtls/xray-core/app/dispatcher.(*DefaultDispatcher).routedDispatch(0xc0002ee1e0, {0x11fef00, 0xc000210180}, 0xc000228060, {{0x1200e80, 0xc000380040}, 0x89, 0x3})
	github.com/xtls/xray-core/app/dispatcher/default.go:490 +0xbfe
github.com/xtls/xray-core/app/dispatcher.(*DefaultDispatcher).DispatchLink(0x0?, {0x11fef00, 0xc000210120}, {{0x1200e80?, 0xc000380040?}, 0x0?, 0x0?}, 0xc000228060)
	github.com/xtls/xray-core/app/dispatcher/default.go:345 +0x686
github.com/xtls/xray-core/app/tun.(*Tun).NewPacketConnection(0xc000324000, {0x11fef00, 0xc0003143c0}, {0x1205020?, 0xc00033e000}, {{0x0, 0x0}, {{{0x0, 0xffffac130001}, 0xc000008180}, ...}, ...})
	github.com/xtls/xray-core/app/tun/tun.go:228 +0x3c4
github.com/sagernet/sing/common/udpnat.(*Service[...]).NewContextPacket.func2()
	github.com/sagernet/sing@v0.2.1/common/udpnat/service.go:83 +0xe6
created by github.com/sagernet/sing/common/udpnat.(*Service[...]).NewContextPacket
	github.com/sagernet/sing@v0.2.1/common/udpnat/service.go:82 +0x3d2

nekohasekai · 2023-03-26T03:03:12Z

没有依赖 CGO，关于第二个问题，请将 common.Must 删除。

yuhan6665 · 2023-03-26T03:28:32Z

没有依赖 CGO，关于第二个问题，请将 common.Must 删除。

测试可以了! 测了一下 vmess 通但是 reality 好像还有点问题。。
编译后大小 27.4 -> 28.5 压缩后 9.23 -> 9.62
CC @RPRX

RPRX · 2023-03-26T05:45:44Z

但是 reality 好像还有点问题。。

是什么现象

yuhan6665 · 2023-03-26T15:44:14Z

proxy/vless/outbound: Reader is not timeout reader, will send out vless header separately from first payload
破案了是因为 tun interface 不支持读 timeout 所以 vless 无法粘首包那块代码有点问题所以不通
@nekohasekai tun 有可能支持 timeout 吗？

nekohasekai · 2023-03-27T00:44:24Z

是支持的，看起来只是没有实现 xray 的 interface。

yuhan6665 · 2023-03-28T02:42:31Z

感谢测试无问题

yuhan6665 · 2023-03-30T02:42:52Z

As discussed, plan to merge for v1.9.0

hosseinkhojany · 2023-05-14T19:56:21Z

这是一个了不起的功能
我在 REALITY 设置上进行了测试，几秒钟后出现了这个错误
Xray 1.8.1 (Xray, Penetrates Everything.) 6032640 (go1.20.3 windows/amd64)
A unified platform for anti-censorship.
2023/05/14 19:53:03 [Info] infra/conf/serial: Reading config: c.json
2023/05/14 19:53:04 [Warning] core: Xray 1.8.1 started
panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x20 pc=0x156044c]

goroutine 416 [running]:
github.com/xtls/xray-core/common/singbridge.ToSocksaddr({{0x0?, 0x0?}, 0x0?, 0x0?})
github.com/xtls/xray-core/common/singbridge/destination.go:38 +0x6c
github.com/xtls/xray-core/app/tun.(*PacketConn).WriteMultiBuffer(0xc000353210, {0xc00000a060?, 0x1, 0xc0001f9cf0?})
github.com/xtls/xray-core/app/tun/packet_conn.go:36 +0x1d8
github.com/xtls/xray-core/common/buf.copyInternal({0x1f73fc0, 0xc00023af60}, {0x1f73060, 0xc000353210}, 0xc00025e1e0)
github.com/xtls/xray-core/common/buf/copy.go:87 +0x175
github.com/xtls/xray-core/common/buf.Copy({0x1f73fc0, 0xc00023af60}, {0x1f73060, 0xc000353210}, {0xc0001f9eb8, 0x1, 0xc00004e048?})
github.com/xtls/xray-core/common/buf/copy.go:104 +0xa5
github.com/xtls/xray-core/proxy/vless/outbound.(*Handler).Process.func4()
github.com/xtls/xray-core/proxy/vless/outbound/outbound.go:304 +0x5d5
github.com/xtls/xray-core/common/task.OnSuccess.func1()
github.com/xtls/xray-core/common/task/task.go:12 +0x25
github.com/xtls/xray-core/common/task.Run.func1(0x0?)
github.com/xtls/xray-core/common/task/task.go:28 +0x2e
created by github.com/xtls/xray-core/common/task.Run
github.com/xtls/xray-core/common/task/task.go:27 +0xde

charliez0 · 2023-05-18T11:01:21Z

遇到了同样的问题，貌似是发生在内置dns请求完dns返回的时候 @RPRX

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xc0000005 code=0x0 addr=0x20 pc=0x76044c]

goroutine 191 [running]:
github.com/xtls/xray-core/common/singbridge.ToSocksaddr({{0x0?, 0x0?}, 0x0?, 0x0?})
        github.com/xtls/xray-core/common/singbridge/destination.go:38 +0x6c
github.com/xtls/xray-core/app/tun.(*PacketConn).WriteMultiBuffer(0xc0003356e0, {0xc0001081f0?, 0x1, 0x1700000000000000?})
        github.com/xtls/xray-core/app/tun/packet_conn.go:36 +0x1d8
github.com/xtls/xray-core/common/protocol/dns.(*UDPWriter).WriteMessage(0xc000335770, 0xc0011e8630)
        github.com/xtls/xray-core/common/protocol/dns/io.go:125 +0x6a
github.com/xtls/xray-core/proxy/dns.(*Handler).handleIPQuery(0xc0008b0b40?, 0x3186, 0x1, {0xc000b92000, 0x17}, {0x1173640, 0xc000335770})
        github.com/xtls/xray-core/proxy/dns/dns.go:290 +0x8a3
created by github.com/xtls/xray-core/proxy/dns.(*Handler).Process.func2
        github.com/xtls/xray-core/proxy/dns/dns.go:176 +0x295

A5DkjGQUZx · 2023-10-01T11:20:02Z

@RPRX
Would it be possible to have a fully tested and working TUN support in the next release please?
Thanks :)

A5DkjGQUZx · 2023-10-03T09:00:28Z

As discussed, plan to merge for v1.9.0

Hi

Any ETA for the release?
What would be the performance of this TUN interface e.g. in comparison to https://github.com/heiher/hev-socks5-tunnel
Thanks :)

zhouxinghong · 2023-10-22T09:52:02Z

+1

nekohasekai requested review from RPRX and yuhan6665 March 18, 2023 06:18

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Add tun support

6032640

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添加 tun 支持 #1814

添加 tun 支持 #1814

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添加 tun 支持 #1814

添加 tun 支持 #1814

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