Use nfsAEAD & pfsAEAD for paddings; Refine comments

https://github.com/XTLS/Xray-core/pull/4952#issuecomment-3210125349

373558ed7a (r164355865)

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -7,8 +7,6 @@ body:
       description: |-
         Please check all of the following options to prove that you have read and understood the requirements, otherwise this issue will be closed.
       options:
-        - label: I have read all the comments in the issue template and ensured that this issue meet the requirements.
-          required: true
         - label: I confirm that I have read the documentation, understand the meaning of all the configuration items I wrote, and did not pile up seemingly useful options or default values.
           required: true
         - label: I provided the complete config and logs, rather than just providing the truncated parts based on my own judgment.
@@ -40,8 +38,6 @@ body:
         ### For config
         Please provide the configuration files that can reproduce the problem, including the server and client.
         Don't just paste a big exported config file here. Eliminate useless inbound/outbound, rules, options, this can help determine the problem, if you really want to get help.
-        After removing parts that do not affect reproduction, provide the actual running **complete** file.
-        meaning of complete: This config can be directly used to start the core, **not a truncated part of the config**. For fields like keys, use newly generated valid parameters that have not been actually used to fill in.
 
         ### For logs
         Please set the log level to debug and dnsLog to true first.
@@ -50,29 +46,42 @@ body:
         Provide the log of Xray-core, not the log output by the panel or other things.
 
         ### Finally
-        The specific content to be filled in each of the following text boxes needs to be placed between ```<details><pre><code>``` and ```</code></pre></details>```, like this
+        After removing parts that do not affect reproduction, provide the actual running **complete** file, do not only provide inbound or outbound or a few lines of logs based on your own judgment.
-        ```
+        Put the content between the preset ```<details><pre><code>``` ```</code></pre></details>``` in the text box.
-        <details><pre><code>
+        If the problem is very clear that only related to one end (such as core startup failure/crash after correctly writing the config according to the documents), N/A can be filled in for unnecessary areas below.
-        (config)
-        </code></pre></details>
-        ```
   - type: textarea
     attributes:
       label: Client config
+      value: |-
+        <details><pre><code>
+
+        </code></pre></details>
     validations:
       required: true
   - type: textarea
     attributes:
       label: Server config
+      value: |-
+        <details><pre><code>
+
+        </code></pre></details>
     validations:
       required: true
   - type: textarea
     attributes:
       label: Client log
+      value: |-
+        <details><pre><code>
+
+        </code></pre></details>
     validations:
       required: true
   - type: textarea
     attributes:
       label: Server log
+      value: |-
+        <details><pre><code>
+
+        </code></pre></details>
     validations:
       required: true

.github/ISSUE_TEMPLATE/bug_report_zh.yml

@@ -7,8 +7,6 @@ body:
       description: |-
         请勾选以下所有选项以证明您已经阅读并理解了以下要求，否则该 issue 将被关闭。
       options:
-        - label: 我读完了 issue 模板中的所有注释，确保填写符合要求。
-          required: true
         - label: 我保证阅读了文档，了解所有我编写的配置文件项的含义，而不是大量堆砌看似有用的选项或默认值。
           required: true
         - label: 我提供了完整的配置文件和日志，而不是出于自己的判断只给出截取的部分。
@@ -40,8 +38,6 @@ body:
         ### 对于配置文件
         请提供可以重现问题的配置文件，包括服务端和客户端。
         不要直接在这里黏贴一大段导出的 config 文件。去掉无用的出入站、规则、选项，这可以帮助确定问题，如果你真的想得到帮助。
-        在去掉不影响复现的部分后，提供实际运行的**完整**文件。
-        完整的含义：可以直接使用这个配置启动核心，**不是截取的部分配置**。对于密钥等参数使用重新生成未实际使用的有效参数填充。
         
         ### 对于日志
         请先将日志等级设置为 debug, dnsLog 设置为true.
@@ -50,29 +46,42 @@ body:
         提供 Xray-core 的日志，而不是面板或者别的东西输出的日志。
 
         ### 最后
-        把下面的每格具体内容需要放在 ```<details><pre><code>``` 和 ```</code></pre></details>``` 中间，如
+        在去掉不影响复现的部分后，提供实际运行的**完整**文件，不要出于自己的判断只提供入站出站或者几行日志。
-        ```
+        把内容放在文本框预置的 ```<details><pre><code>``` 和 ```</code></pre></details>``` 中间。
-        <details><pre><code>
+        如果问题十分明确只出现在某一端(如按文档正确编写配置后核心启动失败/崩溃)，可以在下面不需要的项目填入N/A.
-        (config)
-        </code></pre></details>
-        ```
   - type: textarea
     attributes:
       label: 客户端配置
+      value: |-
+        <details><pre><code>
+
+        </code></pre></details>
     validations:
       required: true
   - type: textarea
     attributes:
       label: 服务端配置
+      value: |-
+        <details><pre><code>
+
+        </code></pre></details>
     validations:
       required: true
   - type: textarea
     attributes:
       label: 客户端日志
+      value: |-
+        <details><pre><code>
+
+        </code></pre></details>
     validations:
       required: true
   - type: textarea
     attributes:
       label: 服务端日志
+      value: |-
+        <details><pre><code>
+
+        </code></pre></details>
     validations:
       required: true

.github/workflows/docker.yml

@@ -65,7 +65,7 @@ jobs:
           echo "LATEST=$LATEST" >>${GITHUB_ENV}
 
       - name: Checkout code
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
 
       - name: Set up QEMU
         uses: docker/setup-qemu-action@v3

.github/workflows/release-win7.yml

@@ -63,7 +63,7 @@ jobs:
       CGO_ENABLED: 0
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
 
       - name: Show workflow information
         run: |
@@ -94,11 +94,11 @@ jobs:
           mkdir -p build_assets
           COMMID=$(git describe --always --dirty)
           echo 'Building Xray for Windows 7...'
-          go build -o build_assets/xray.exe -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
+          go build -o build_assets/xray.exe -trimpath -buildvcs=false -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
           echo 'CreateObject("Wscript.Shell").Run "xray.exe -config config.json",0' > build_assets/xray_no_window.vbs
           echo 'Start-Process -FilePath ".\xray.exe" -ArgumentList "-config .\config.json" -WindowStyle Hidden' > build_assets/xray_no_window.ps1
           # The line below is for without running conhost.exe version. Commented for not being used. Provided for reference.
-          # go build -o build_assets/wxray.exe -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-H windowsgui -X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
+          # go build -o build_assets/wxray.exe -trimpath -buildvcs=false -ldflags="-H windowsgui -X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
 
       - name: Restore Geodat Cache
         uses: actions/cache/restore@v4

.github/workflows/release.yml

@@ -153,7 +153,7 @@ jobs:
       CGO_ENABLED: 0
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
 
       - name: Set up NDK
         if: matrix.goos == 'android'
@@ -190,19 +190,17 @@ jobs:
           COMMID=$(git describe --always --dirty)
           if [[ ${GOOS} == 'windows' ]]; then
             echo 'Building Xray for Windows...'
-            go build -o build_assets/xray.exe -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
+            go build -o build_assets/xray.exe -trimpath -buildvcs=false -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
             echo 'CreateObject("Wscript.Shell").Run "xray.exe -config config.json",0' > build_assets/xray_no_window.vbs
             echo 'Start-Process -FilePath ".\xray.exe" -ArgumentList "-config .\config.json" -WindowStyle Hidden' > build_assets/xray_no_window.ps1
             # The line below is for without running conhost.exe version. Commented for not being used. Provided for reference.
-            # go build -o build_assets/wxray.exe -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-H windowsgui -X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
+            # go build -o build_assets/wxray.exe -trimpath -buildvcs=false -ldflags="-H windowsgui -X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
           else
             echo 'Building Xray...'
+            go build -o build_assets/xray -trimpath -buildvcs=false -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
             if [[ ${GOARCH} == 'mips' || ${GOARCH} == 'mipsle' ]]; then
-              go build -o build_assets/xray -trimpath -buildvcs=false -gcflags="-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
               echo 'Building soft-float Xray for MIPS/MIPSLE 32-bit...'
-              GOMIPS=softfloat go build -o build_assets/xray_softfloat -trimpath -buildvcs=false -gcflags="-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
+              GOMIPS=softfloat go build -o build_assets/xray_softfloat -trimpath -buildvcs=false -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
-            else
-              go build -o build_assets/xray -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=${COMMID} -s -w -buildid=" -v ./main
             fi
           fi
 

.github/workflows/test.yml

@@ -45,7 +45,7 @@ jobs:
         os: [windows-latest, ubuntu-latest, macos-latest]
     steps:
       - name: Checkout codebase
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
       - name: Set up Go
         uses: actions/setup-go@v5
         with:

.gitignore

@@ -11,23 +11,21 @@
 # Output of the go coverage tool, specifically when used with LiteIDE
 *.out
 
-# macOS specific files
+# Dependency directories (remove the comment below to include it)
-.DS_Store
+# vendor/
 
-# IDE/editor specific files
+# macOS specific files
+*.DS_Store
+
+# IDE specific files
 .idea/
 .vscode/
-*.swp
-*.swo
 
-# Archives and compressed files
+# Archive files
 *.zip
 *.tar.gz
-*.tar
-*.gz
-*.bz2
 
-# Go build binaries
+# Binaries
 xray
 xray_softfloat
 mockgen
@@ -38,31 +36,11 @@ errorgen
 *.dat
 
 # Build assets
-/build_assets/
+/build_assets
 
 # Output from dlv test
 **/debug.*
 
-# Certificates and keys
+# Certificates
 *.crt
 *.key
-
-# Dependency directories (uncomment if needed)
-# vendor/
-
-# Logs
-*.log
-
-# Coverage reports
-coverage.*
-
-# Node modules (in case of frontend assets)
-node_modules/
-
-# System files
-Thumbs.db
-ehthumbs.db
-
-# Other common ignores
-*.bak
-*.tmp

README.md

@@ -165,13 +165,7 @@ CGO_ENABLED=0 go build -o xray -trimpath -buildvcs=false -ldflags="-s -w -buildi
 Make sure that you are using the same Go version, and remember to set the git commit id (7 bytes):
 
 ```bash
-CGO_ENABLED=0 go build -o xray -trimpath -buildvcs=false -gcflags="all=-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=REPLACE -s -w -buildid=" -v ./main
+CGO_ENABLED=0 go build -o xray -trimpath -buildvcs=false -ldflags="-X github.com/xtls/xray-core/core.build=REPLACE -s -w -buildid=" -v ./main
-```
-
-If you are compiling a 32-bit MIPS/MIPSLE target, use this command instead:
-
-```bash
-CGO_ENABLED=0 go build -o xray -trimpath -buildvcs=false -gcflags="-l=4" -ldflags="-X github.com/xtls/xray-core/core.build=REPLACE -s -w -buildid=" -v ./main
 ```
 
 ## Stargazers over time

app/dns/dnscommon.go

@@ -42,15 +42,12 @@ func (r *IPRecord) getIPs() ([]net.IP, uint32, error) {
 	if r == nil {
 		return nil, 0, errRecordNotFound
 	}
-	untilExpire := time.Until(r.Expire).Seconds()
+	untilExpire := time.Until(r.Expire)
 	if untilExpire <= 0 {
 		return nil, 0, errRecordNotFound
 	}
 
-	ttl := uint32(untilExpire) + 1
+	ttl := uint32(untilExpire/time.Second) + uint32(1)
-	if ttl == 1 {
-		r.Expire = time.Now().Add(time.Second) // To ensure that two consecutive requests get the same result
-	}
 	if r.RCode != dnsmessage.RCodeSuccess {
 		return nil, ttl, dns_feature.RCodeError(r.RCode)
 	}

app/dns/dnscommon_test.go

@@ -18,31 +18,31 @@ func Test_parseResponse(t *testing.T) {
 
 	ans := new(dns.Msg)
 	ans.Id = 0
-	p = append(p, common.Must2(ans.Pack()))
+	p = append(p, common.Must2(ans.Pack()).([]byte))
 
 	p = append(p, []byte{})
 
 	ans = new(dns.Msg)
 	ans.Id = 1
 	ans.Answer = append(ans.Answer,
-		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")),
+		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN CNAME fake.google.com")),
+		common.Must2(dns.NewRR("google.com. IN CNAME fake.google.com")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN A 8.8.8.8")),
+		common.Must2(dns.NewRR("google.com. IN A 8.8.8.8")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN A 8.8.4.4")),
+		common.Must2(dns.NewRR("google.com. IN A 8.8.4.4")).(dns.RR),
 	)
-	p = append(p, common.Must2(ans.Pack()))
+	p = append(p, common.Must2(ans.Pack()).([]byte))
 
 	ans = new(dns.Msg)
 	ans.Id = 2
 	ans.Answer = append(ans.Answer,
-		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")),
+		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN CNAME fake.google.com")),
+		common.Must2(dns.NewRR("google.com. IN CNAME fake.google.com")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")),
+		common.Must2(dns.NewRR("google.com. IN CNAME m.test.google.com")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN CNAME test.google.com")),
+		common.Must2(dns.NewRR("google.com. IN CNAME test.google.com")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN AAAA 2001::123:8888")),
+		common.Must2(dns.NewRR("google.com. IN AAAA 2001::123:8888")).(dns.RR),
-		common.Must2(dns.NewRR("google.com. IN AAAA 2001::123:8844")),
+		common.Must2(dns.NewRR("google.com. IN AAAA 2001::123:8844")).(dns.RR),
 	)
-	p = append(p, common.Must2(ans.Pack()))
+	p = append(p, common.Must2(ans.Pack()).([]byte))
 
 	tests := []struct {
 		name    string

app/proxyman/config.pb.go

@@ -449,12 +449,11 @@ type SenderConfig struct {
 	unknownFields protoimpl.UnknownFields
 
 	// Send traffic through the given IP. Only IP is allowed.
-	Via               *net.IPOrDomain         `protobuf:"bytes,1,opt,name=via,proto3" json:"via,omitempty"`
+	Via               *net.IPOrDomain        `protobuf:"bytes,1,opt,name=via,proto3" json:"via,omitempty"`
-	StreamSettings    *internet.StreamConfig  `protobuf:"bytes,2,opt,name=stream_settings,json=streamSettings,proto3" json:"stream_settings,omitempty"`
+	StreamSettings    *internet.StreamConfig `protobuf:"bytes,2,opt,name=stream_settings,json=streamSettings,proto3" json:"stream_settings,omitempty"`
-	ProxySettings     *internet.ProxyConfig   `protobuf:"bytes,3,opt,name=proxy_settings,json=proxySettings,proto3" json:"proxy_settings,omitempty"`
+	ProxySettings     *internet.ProxyConfig  `protobuf:"bytes,3,opt,name=proxy_settings,json=proxySettings,proto3" json:"proxy_settings,omitempty"`
-	MultiplexSettings *MultiplexingConfig     `protobuf:"bytes,4,opt,name=multiplex_settings,json=multiplexSettings,proto3" json:"multiplex_settings,omitempty"`
+	MultiplexSettings *MultiplexingConfig    `protobuf:"bytes,4,opt,name=multiplex_settings,json=multiplexSettings,proto3" json:"multiplex_settings,omitempty"`
-	ViaCidr           string                  `protobuf:"bytes,5,opt,name=via_cidr,json=viaCidr,proto3" json:"via_cidr,omitempty"`
+	ViaCidr           string                 `protobuf:"bytes,5,opt,name=via_cidr,json=viaCidr,proto3" json:"via_cidr,omitempty"`
-	TargetStrategy    internet.DomainStrategy `protobuf:"varint,6,opt,name=target_strategy,json=targetStrategy,proto3,enum=xray.transport.internet.DomainStrategy" json:"target_strategy,omitempty"`
 }
 
 func (x *SenderConfig) Reset() {
@@ -522,13 +521,6 @@ func (x *SenderConfig) GetViaCidr() string {
 	return ""
 }
 
-func (x *SenderConfig) GetTargetStrategy() internet.DomainStrategy {
-	if x != nil {
-		return x.TargetStrategy
-	}
-	return internet.DomainStrategy(0)
-}
-
 type MultiplexingConfig struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -787,7 +779,7 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
 	0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x73, 0x65, 0x72, 0x69, 0x61, 0x6c, 0x2e, 0x54, 0x79, 0x70, 0x65,
 	0x64, 0x4d, 0x65, 0x73, 0x73, 0x61, 0x67, 0x65, 0x52, 0x0d, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x53,
 	0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x22, 0x10, 0x0a, 0x0e, 0x4f, 0x75, 0x74, 0x62, 0x6f,
-	0x75, 0x6e, 0x64, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x22, 0x9d, 0x03, 0x0a, 0x0c, 0x53, 0x65,
+	0x75, 0x6e, 0x64, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x22, 0xcb, 0x02, 0x0a, 0x0c, 0x53, 0x65,
 	0x6e, 0x64, 0x65, 0x72, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x2d, 0x0a, 0x03, 0x76, 0x69,
 	0x61, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x1b, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x63,
 	0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x6e, 0x65, 0x74, 0x2e, 0x49, 0x50, 0x4f, 0x72, 0x44, 0x6f,
@@ -808,28 +800,23 @@ var file_app_proxyman_config_proto_rawDesc = []byte{
 	0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x52, 0x11, 0x6d, 0x75, 0x6c, 0x74, 0x69,
 	0x70, 0x6c, 0x65, 0x78, 0x53, 0x65, 0x74, 0x74, 0x69, 0x6e, 0x67, 0x73, 0x12, 0x19, 0x0a, 0x08,
 	0x76, 0x69, 0x61, 0x5f, 0x63, 0x69, 0x64, 0x72, 0x18, 0x05, 0x20, 0x01, 0x28, 0x09, 0x52, 0x07,
-	0x76, 0x69, 0x61, 0x43, 0x69, 0x64, 0x72, 0x12, 0x50, 0x0a, 0x0f, 0x74, 0x61, 0x72, 0x67, 0x65,
+	0x76, 0x69, 0x61, 0x43, 0x69, 0x64, 0x72, 0x22, 0xa4, 0x01, 0x0a, 0x12, 0x4d, 0x75, 0x6c, 0x74,
-	0x74, 0x5f, 0x73, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x18, 0x06, 0x20, 0x01, 0x28, 0x0e,
+	0x69, 0x70, 0x6c, 0x65, 0x78, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x18,
-	0x32, 0x27, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72,
+	0x0a, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28, 0x08, 0x52,
-	0x74, 0x2e, 0x69, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2e, 0x44, 0x6f, 0x6d, 0x61, 0x69,
+	0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x12, 0x20, 0x0a, 0x0b, 0x63, 0x6f, 0x6e, 0x63,
-	0x6e, 0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x52, 0x0e, 0x74, 0x61, 0x72, 0x67, 0x65,
+	0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0b, 0x63,
-	0x74, 0x53, 0x74, 0x72, 0x61, 0x74, 0x65, 0x67, 0x79, 0x22, 0xa4, 0x01, 0x0a, 0x12, 0x4d, 0x75,
+	0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x12, 0x28, 0x0a, 0x0f, 0x78, 0x75,
-	0x6c, 0x74, 0x69, 0x70, 0x6c, 0x65, 0x78, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67,
+	0x64, 0x70, 0x43, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18, 0x03, 0x20,
-	0x12, 0x18, 0x0a, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x18, 0x01, 0x20, 0x01, 0x28,
+	0x01, 0x28, 0x05, 0x52, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x43, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72,
-	0x08, 0x52, 0x07, 0x65, 0x6e, 0x61, 0x62, 0x6c, 0x65, 0x64, 0x12, 0x20, 0x0a, 0x0b, 0x63, 0x6f,
+	0x65, 0x6e, 0x63, 0x79, 0x12, 0x28, 0x0a, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x50, 0x72, 0x6f, 0x78,
-	0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18, 0x02, 0x20, 0x01, 0x28, 0x05, 0x52,
+	0x79, 0x55, 0x44, 0x50, 0x34, 0x34, 0x33, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52, 0x0f, 0x78,
-	0x0b, 0x63, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x12, 0x28, 0x0a, 0x0f,
+	0x75, 0x64, 0x70, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x55, 0x44, 0x50, 0x34, 0x34, 0x33, 0x42, 0x55,
-	0x78, 0x75, 0x64, 0x70, 0x43, 0x6f, 0x6e, 0x63, 0x75, 0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x18,
+	0x0a, 0x15, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70, 0x2e, 0x70,
-	0x03, 0x20, 0x01, 0x28, 0x05, 0x52, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x43, 0x6f, 0x6e, 0x63, 0x75,
+	0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x50, 0x01, 0x5a, 0x26, 0x67, 0x69, 0x74, 0x68, 0x75,
-	0x72, 0x72, 0x65, 0x6e, 0x63, 0x79, 0x12, 0x28, 0x0a, 0x0f, 0x78, 0x75, 0x64, 0x70, 0x50, 0x72,
+	0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d,
-	0x6f, 0x78, 0x79, 0x55, 0x44, 0x50, 0x34, 0x34, 0x33, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52,
+	0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61,
-	0x0f, 0x78, 0x75, 0x64, 0x70, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x55, 0x44, 0x50, 0x34, 0x34, 0x33,
+	0x6e, 0xaa, 0x02, 0x11, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x50, 0x72, 0x6f,
-	0x42, 0x55, 0x0a, 0x15, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x61, 0x70, 0x70,
+	0x78, 0x79, 0x6d, 0x61, 0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
-	0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x50, 0x01, 0x5a, 0x26, 0x67, 0x69, 0x74,
-	0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61,
-	0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x61, 0x70, 0x70, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79,
-	0x6d, 0x61, 0x6e, 0xaa, 0x02, 0x11, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x50,
-	0x72, 0x6f, 0x78, 0x79, 0x6d, 0x61, 0x6e, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -863,7 +850,6 @@ var file_app_proxyman_config_proto_goTypes = []any{
 	(*internet.StreamConfig)(nil),                            // 13: xray.transport.internet.StreamConfig
 	(*serial.TypedMessage)(nil),                              // 14: xray.common.serial.TypedMessage
 	(*internet.ProxyConfig)(nil),                             // 15: xray.transport.internet.ProxyConfig
-	(internet.DomainStrategy)(0),                             // 16: xray.transport.internet.DomainStrategy
 }
 var file_app_proxyman_config_proto_depIdxs = []int32{
 	0,  // 0: xray.app.proxyman.AllocationStrategy.type:type_name -> xray.app.proxyman.AllocationStrategy.Type
@@ -880,12 +866,11 @@ var file_app_proxyman_config_proto_depIdxs = []int32{
 	13, // 11: xray.app.proxyman.SenderConfig.stream_settings:type_name -> xray.transport.internet.StreamConfig
 	15, // 12: xray.app.proxyman.SenderConfig.proxy_settings:type_name -> xray.transport.internet.ProxyConfig
 	8,  // 13: xray.app.proxyman.SenderConfig.multiplex_settings:type_name -> xray.app.proxyman.MultiplexingConfig
-	16, // 14: xray.app.proxyman.SenderConfig.target_strategy:type_name -> xray.transport.internet.DomainStrategy
+	14, // [14:14] is the sub-list for method output_type
-	15, // [15:15] is the sub-list for method output_type
+	14, // [14:14] is the sub-list for method input_type
-	15, // [15:15] is the sub-list for method input_type
+	14, // [14:14] is the sub-list for extension type_name
-	15, // [15:15] is the sub-list for extension type_name
+	14, // [14:14] is the sub-list for extension extendee
-	15, // [15:15] is the sub-list for extension extendee
+	0,  // [0:14] is the sub-list for field type_name
-	0,  // [0:15] is the sub-list for field type_name
 }
 
 func init() { file_app_proxyman_config_proto_init() }

app/proxyman/config.proto

@@ -84,7 +84,6 @@ message SenderConfig {
   xray.transport.internet.ProxyConfig proxy_settings = 3;
   MultiplexingConfig multiplex_settings = 4;
   string via_cidr = 5;
-  xray.transport.internet.DomainStrategy target_strategy = 6;
 }
 
 message MultiplexingConfig {

app/proxyman/inbound/worker.go

@@ -322,18 +322,10 @@ func (w *udpWorker) callback(b *buf.Buffer, source net.Destination, originalDest
 				outbounds[0].Target = originalDest
 			}
 			ctx = session.ContextWithOutbounds(ctx, outbounds)
-			local := net.DestinationFromAddr(w.hub.Addr())
-			if local.Address == net.AnyIP || local.Address == net.AnyIPv6 {
-				if source.Address.Family().IsIPv4() {
-					local.Address = net.AnyIP
-				} else if source.Address.Family().IsIPv6() {
-					local.Address = net.AnyIPv6
-				}
-			}
 
 			ctx = session.ContextWithInbound(ctx, &session.Inbound{
 				Source:  source,
-				Local:   local, // Due to some limitations, in UDP connections, localIP is always equal to listen interface IP
+				Local:   net.DestinationFromAddr(w.hub.Addr()),
 				Gateway: net.UDPDestination(w.address, w.port),
 				Tag:     w.tag,
 			})

app/proxyman/outbound/handler.go

@@ -9,8 +9,6 @@ import (
 	gonet "net"
 	"os"
 
-	"github.com/xtls/xray-core/common/dice"
-
 	"github.com/xtls/xray-core/app/proxyman"
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
@@ -179,29 +177,6 @@ func (h *Handler) Tag() string {
 func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
 	outbounds := session.OutboundsFromContext(ctx)
 	ob := outbounds[len(outbounds)-1]
-	content := session.ContentFromContext(ctx)
-	if h.senderSettings != nil && h.senderSettings.TargetStrategy.HasStrategy() && ob.Target.Address.Family().IsDomain() && (content == nil || !content.SkipDNSResolve) {
-		strategy := h.senderSettings.TargetStrategy
-		if ob.Target.Network == net.Network_UDP && ob.OriginalTarget.Address != nil {
-			strategy = strategy.GetDynamicStrategy(ob.OriginalTarget.Address.Family())
-		}
-		ips, err := internet.LookupForIP(ob.Target.Address.Domain(), strategy, nil)
-		if err != nil {
-			errors.LogInfoInner(ctx, err, "failed to resolve ip for target ", ob.Target.Address.Domain())
-			if h.senderSettings.TargetStrategy.ForceIP() {
-				err := errors.New("failed to resolve ip for target ", ob.Target.Address.Domain()).Base(err)
-				session.SubmitOutboundErrorToOriginator(ctx, err)
-				common.Interrupt(link.Writer)
-				common.Interrupt(link.Reader)
-				return
-			}
-
-		} else {
-			unchangedDomain := ob.Target.Address.Domain()
-			ob.Target.Address = net.IPAddress(ips[dice.Roll(len(ips))])
-			errors.LogInfo(ctx, "target: ", unchangedDomain, " resolved to: ", ob.Target.Address.String())
-		}
-	}
 	if ob.Target.Network == net.Network_UDP && ob.OriginalTarget.Address != nil && ob.OriginalTarget.Address != ob.Target.Address {
 		link.Reader = &buf.EndpointOverrideReader{Reader: link.Reader, Dest: ob.Target.Address, OriginalDest: ob.OriginalTarget.Address}
 		link.Writer = &buf.EndpointOverrideWriter{Writer: link.Writer, Dest: ob.Target.Address, OriginalDest: ob.OriginalTarget.Address}
@@ -213,7 +188,6 @@ func (h *Handler) Dispatch(ctx context.Context, link *transport.Link) {
 				session.SubmitOutboundErrorToOriginator(ctx, err)
 				errors.LogInfo(ctx, err.Error())
 				common.Interrupt(link.Writer)
-				common.Interrupt(link.Reader)
 			}
 		}
 		if ob.Target.Network == net.Network_UDP && ob.Target.Port == 443 {
@@ -256,6 +230,14 @@ out:
 	common.Interrupt(link.Reader)
 }
 
+// Address implements internet.Dialer.
+func (h *Handler) Address() net.Address {
+	if h.senderSettings == nil || h.senderSettings.Via == nil {
+		return nil
+	}
+	return h.senderSettings.Via.AsAddress()
+}
+
 func (h *Handler) DestIpAddress() net.IP {
 	return internet.DestIpAddress()
 }
@@ -290,16 +272,49 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 				return h.getStatCouterConnection(conn), nil
 			}
 
-			errors.LogError(ctx, "failed to get outbound handler with tag: ", tag)
+			errors.LogWarning(ctx, "failed to get outbound handler with tag: ", tag)
-			return nil, errors.New("failed to get outbound handler with tag: " + tag)
 		}
 
 		if h.senderSettings.Via != nil {
+
 			outbounds := session.OutboundsFromContext(ctx)
 			ob := outbounds[len(outbounds)-1]
-			h.SetOutboundGateway(ctx, ob)
+			var domain string
-		}
+			addr := h.senderSettings.Via.AsAddress()
+			domain = h.senderSettings.Via.GetDomain()
+			switch {
+			case h.senderSettings.ViaCidr != "":
+				ob.Gateway = ParseRandomIP(addr, h.senderSettings.ViaCidr)
 
+			case domain == "origin":
+
+				if inbound := session.InboundFromContext(ctx); inbound != nil {
+					if inbound.Conn != nil {
+						origin, _, err := net.SplitHostPort(inbound.Conn.LocalAddr().String())
+						if err == nil {
+							ob.Gateway = net.ParseAddress(origin)
+							errors.LogDebug(ctx, "use receive package ip as snedthrough: ", origin)
+						}
+					}
+				}
+			case domain == "srcip":
+				if inbound := session.InboundFromContext(ctx); inbound != nil {
+					if inbound.Conn != nil {
+						clientaddr, _, err := net.SplitHostPort(inbound.Conn.RemoteAddr().String())
+						if err == nil {
+							ob.Gateway = net.ParseAddress(clientaddr)
+							errors.LogDebug(ctx, "use client src ip as snedthrough: ", clientaddr)
+						}
+					}
+
+				}
+			//case addr.Family().IsDomain():
+			default:
+				ob.Gateway = addr
+
+			}
+
+		}
 	}
 
 	if conn, err := h.getUoTConnection(ctx, dest); err != os.ErrInvalid {
@@ -314,38 +329,6 @@ func (h *Handler) Dial(ctx context.Context, dest net.Destination) (stat.Connecti
 	return conn, err
 }
 
-func (h *Handler) SetOutboundGateway(ctx context.Context, ob *session.Outbound) {
-	if ob.Gateway == nil && h.senderSettings != nil && h.senderSettings.Via != nil && !h.senderSettings.ProxySettings.HasTag() && (h.streamSettings.SocketSettings == nil || len(h.streamSettings.SocketSettings.DialerProxy) == 0) {
-		var domain string
-		addr := h.senderSettings.Via.AsAddress()
-		domain = h.senderSettings.Via.GetDomain()
-		switch {
-		case h.senderSettings.ViaCidr != "":
-			ob.Gateway = ParseRandomIP(addr, h.senderSettings.ViaCidr)
-
-		case domain == "origin":
-			if inbound := session.InboundFromContext(ctx); inbound != nil {
-				if inbound.Local.IsValid() && inbound.Local.Address.Family().IsIP() {
-					ob.Gateway = inbound.Local.Address
-					errors.LogDebug(ctx, "use inbound local ip as sendthrough: ", inbound.Local.Address.String())
-				}
-			}
-		case domain == "srcip":
-			if inbound := session.InboundFromContext(ctx); inbound != nil {
-				if inbound.Source.IsValid() && inbound.Source.Address.Family().IsIP() {
-					ob.Gateway = inbound.Source.Address
-					errors.LogDebug(ctx, "use inbound source ip as sendthrough: ", inbound.Source.Address.String())
-				}
-			}
-		//case addr.Family().IsDomain():
-		default:
-			ob.Gateway = addr
-
-		}
-
-	}
-}
-
 func (h *Handler) getStatCouterConnection(conn stat.Connection) stat.Connection {
 	if h.uplinkCounter != nil || h.downlinkCounter != nil {
 		return &stat.CounterConnection{

app/router/command/command.pb.go

@@ -44,7 +44,6 @@ type RoutingContext struct {
 	OutboundTag       string            `protobuf:"bytes,12,opt,name=OutboundTag,proto3" json:"OutboundTag,omitempty"`
 	LocalIPs          [][]byte          `protobuf:"bytes,13,rep,name=LocalIPs,proto3" json:"LocalIPs,omitempty"`
 	LocalPort         uint32            `protobuf:"varint,14,opt,name=LocalPort,proto3" json:"LocalPort,omitempty"`
-	VlessRoute        uint32            `protobuf:"varint,15,opt,name=VlessRoute,proto3" json:"VlessRoute,omitempty"`
 }
 
 func (x *RoutingContext) Reset() {
@@ -175,13 +174,6 @@ func (x *RoutingContext) GetLocalPort() uint32 {
 	return 0
 }
 
-func (x *RoutingContext) GetVlessRoute() uint32 {
-	if x != nil {
-		return x.VlessRoute
-	}
-	return 0
-}
-
 // SubscribeRoutingStatsRequest subscribes to routing statistics channel if
 // opened by xray-core.
 // * FieldSelectors selects a subset of fields in routing statistics to return.
@@ -851,7 +843,7 @@ var file_app_router_command_command_proto_rawDesc = []byte{
 	0x6d, 0x6f, 0x6e, 0x2f, 0x6e, 0x65, 0x74, 0x2f, 0x6e, 0x65, 0x74, 0x77, 0x6f, 0x72, 0x6b, 0x2e,
 	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x1a, 0x21, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x73, 0x65,
 	0x72, 0x69, 0x61, 0x6c, 0x2f, 0x74, 0x79, 0x70, 0x65, 0x64, 0x5f, 0x6d, 0x65, 0x73, 0x73, 0x61,
-	0x67, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xf6, 0x04, 0x0a, 0x0e, 0x52, 0x6f, 0x75,
+	0x67, 0x65, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x22, 0xd6, 0x04, 0x0a, 0x0e, 0x52, 0x6f, 0x75,
 	0x74, 0x69, 0x6e, 0x67, 0x43, 0x6f, 0x6e, 0x74, 0x65, 0x78, 0x74, 0x12, 0x1e, 0x0a, 0x0a, 0x49,
 	0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x54, 0x61, 0x67, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52,
 	0x0a, 0x49, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x54, 0x61, 0x67, 0x12, 0x32, 0x0a, 0x07, 0x4e,
@@ -885,9 +877,7 @@ var file_app_router_command_command_proto_rawDesc = []byte{
 	0x6c, 0x49, 0x50, 0x73, 0x18, 0x0d, 0x20, 0x03, 0x28, 0x0c, 0x52, 0x08, 0x4c, 0x6f, 0x63, 0x61,
 	0x6c, 0x49, 0x50, 0x73, 0x12, 0x1c, 0x0a, 0x09, 0x4c, 0x6f, 0x63, 0x61, 0x6c, 0x50, 0x6f, 0x72,
 	0x74, 0x18, 0x0e, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x09, 0x4c, 0x6f, 0x63, 0x61, 0x6c, 0x50, 0x6f,
-	0x72, 0x74, 0x12, 0x1e, 0x0a, 0x0a, 0x56, 0x6c, 0x65, 0x73, 0x73, 0x52, 0x6f, 0x75, 0x74, 0x65,
+	0x72, 0x74, 0x1a, 0x3d, 0x0a, 0x0f, 0x41, 0x74, 0x74, 0x72, 0x69, 0x62, 0x75, 0x74, 0x65, 0x73,
-	0x18, 0x0f, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x0a, 0x56, 0x6c, 0x65, 0x73, 0x73, 0x52, 0x6f, 0x75,
-	0x74, 0x65, 0x1a, 0x3d, 0x0a, 0x0f, 0x41, 0x74, 0x74, 0x72, 0x69, 0x62, 0x75, 0x74, 0x65, 0x73,
 	0x45, 0x6e, 0x74, 0x72, 0x79, 0x12, 0x10, 0x0a, 0x03, 0x6b, 0x65, 0x79, 0x18, 0x01, 0x20, 0x01,
 	0x28, 0x09, 0x52, 0x03, 0x6b, 0x65, 0x79, 0x12, 0x14, 0x0a, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65,
 	0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x76, 0x61, 0x6c, 0x75, 0x65, 0x3a, 0x02, 0x38,

app/router/command/command.proto

@@ -27,7 +27,6 @@ message RoutingContext {
   string OutboundTag = 12;
   repeated bytes LocalIPs = 13;
   uint32 LocalPort = 14;
-  uint32 VlessRoute = 15;
 }
 
 // SubscribeRoutingStatsRequest subscribes to routing statistics channel if

app/router/command/config.go

@@ -36,10 +36,6 @@ func (c routingContext) GetLocalPort() net.Port {
 	return net.Port(c.RoutingContext.GetLocalPort())
 }
 
-func (c routingContext) GetVlessRoute() net.Port {
-	return net.Port(c.RoutingContext.GetVlessRoute())
-}
-
 func (c routingContext) GetRuleTag() string {
 	return ""
 }

app/router/condition.go

@@ -83,6 +83,21 @@ func NewMphMatcherGroup(domains []*Domain) (*DomainMatcher, error) {
 	}, nil
 }
 
+func NewDomainMatcher(domains []*Domain) (*DomainMatcher, error) {
+	g := new(strmatcher.MatcherGroup)
+	for _, d := range domains {
+		m, err := domainToMatcher(d)
+		if err != nil {
+			return nil, err
+		}
+		g.Add(m)
+	}
+
+	return &DomainMatcher{
+		matchers: g,
+	}, nil
+}
+
 func (m *DomainMatcher) ApplyDomain(domain string) bool {
 	return len(m.matchers.Match(strings.ToLower(domain))) > 0
 }
@@ -166,8 +181,6 @@ func (v *PortMatcher) Apply(ctx routing.Context) bool {
 		return v.port.Contains(ctx.GetSourcePort())
 	case "target":
 		return v.port.Contains(ctx.GetTargetPort())
-	case "vlessRoute":
-		return v.port.Contains(ctx.GetVlessRoute())
 	default:
 		panic("unreachable, asType should be local or source or target")
 	}

app/router/condition_test.go

@@ -328,6 +328,9 @@ func TestChinaSites(t *testing.T) {
 	domains, err := loadGeoSite("CN")
 	common.Must(err)
 
+	matcher, err := NewDomainMatcher(domains)
+	common.Must(err)
+
 	acMatcher, err := NewMphMatcherGroup(domains)
 	common.Must(err)
 
@@ -359,9 +362,12 @@ func TestChinaSites(t *testing.T) {
 	}
 
 	for _, testCase := range testCases {
-		r := acMatcher.ApplyDomain(testCase.Domain)
+		r1 := matcher.ApplyDomain(testCase.Domain)
-		if r != testCase.Output {
+		r2 := acMatcher.ApplyDomain(testCase.Domain)
-			t.Error("ACDomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r)
+		if r1 != testCase.Output {
+			t.Error("DomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r1)
+		} else if r2 != testCase.Output {
+			t.Error("ACDomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r2)
 		}
 	}
 }
@@ -408,6 +414,48 @@ func BenchmarkMphDomainMatcher(b *testing.B) {
 	}
 }
 
+func BenchmarkDomainMatcher(b *testing.B) {
+	domains, err := loadGeoSite("CN")
+	common.Must(err)
+
+	matcher, err := NewDomainMatcher(domains)
+	common.Must(err)
+
+	type TestCase struct {
+		Domain string
+		Output bool
+	}
+	testCases := []TestCase{
+		{
+			Domain: "163.com",
+			Output: true,
+		},
+		{
+			Domain: "163.com",
+			Output: true,
+		},
+		{
+			Domain: "164.com",
+			Output: false,
+		},
+		{
+			Domain: "164.com",
+			Output: false,
+		},
+	}
+
+	for i := 0; i < 1024; i++ {
+		testCases = append(testCases, TestCase{Domain: strconv.Itoa(i) + ".not-exists.com", Output: false})
+	}
+
+	b.ResetTimer()
+	for i := 0; i < b.N; i++ {
+		for _, testCase := range testCases {
+			_ = matcher.ApplyDomain(testCase.Domain)
+		}
+	}
+}
+
 func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 	var geoips []*GeoIP
 

app/router/config.go

@@ -33,22 +33,29 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	conds := NewConditionChan()
 
 	if len(rr.Domain) > 0 {
-		matcher, err := NewMphMatcherGroup(rr.Domain)
+		switch rr.DomainMatcher {
-		if err != nil {
+		case "linear":
-			return nil, errors.New("failed to build domain condition with MphDomainMatcher").Base(err)
+			matcher, err := NewDomainMatcher(rr.Domain)
+			if err != nil {
+				return nil, errors.New("failed to build domain condition").Base(err)
+			}
+			conds.Add(matcher)
+		case "mph", "hybrid":
+			fallthrough
+		default:
+			matcher, err := NewMphMatcherGroup(rr.Domain)
+			if err != nil {
+				return nil, errors.New("failed to build domain condition with MphDomainMatcher").Base(err)
+			}
+			errors.LogDebug(context.Background(), "MphDomainMatcher is enabled for ", len(rr.Domain), " domain rule(s)")
+			conds.Add(matcher)
 		}
-		errors.LogDebug(context.Background(), "MphDomainMatcher is enabled for ", len(rr.Domain), " domain rule(s)")
-		conds.Add(matcher)
 	}
 
 	if len(rr.UserEmail) > 0 {
 		conds.Add(NewUserMatcher(rr.UserEmail))
 	}
 
-	if rr.VlessRouteList != nil {
-		conds.Add(NewPortMatcher(rr.VlessRouteList, "vlessRoute"))
-	}
-
 	if len(rr.InboundTag) > 0 {
 		conds.Add(NewInboundTagMatcher(rr.InboundTag))
 	}

app/router/config.pb.go

@@ -470,7 +470,7 @@ type RoutingRule struct {
 	//	*RoutingRule_Tag
 	//	*RoutingRule_BalancingTag
 	TargetTag isRoutingRule_TargetTag `protobuf_oneof:"target_tag"`
-	RuleTag   string                  `protobuf:"bytes,19,opt,name=rule_tag,json=ruleTag,proto3" json:"rule_tag,omitempty"`
+	RuleTag   string                  `protobuf:"bytes,20,opt,name=rule_tag,json=ruleTag,proto3" json:"rule_tag,omitempty"`
 	// List of domains for target domain matching.
 	Domain []*Domain `protobuf:"bytes,2,rep,name=domain,proto3" json:"domain,omitempty"`
 	// List of GeoIPs for target IP address matching. If this entry exists, the
@@ -491,9 +491,9 @@ type RoutingRule struct {
 	InboundTag     []string          `protobuf:"bytes,8,rep,name=inbound_tag,json=inboundTag,proto3" json:"inbound_tag,omitempty"`
 	Protocol       []string          `protobuf:"bytes,9,rep,name=protocol,proto3" json:"protocol,omitempty"`
 	Attributes     map[string]string `protobuf:"bytes,15,rep,name=attributes,proto3" json:"attributes,omitempty" protobuf_key:"bytes,1,opt,name=key,proto3" protobuf_val:"bytes,2,opt,name=value,proto3"`
-	LocalGeoip     []*GeoIP          `protobuf:"bytes,17,rep,name=local_geoip,json=localGeoip,proto3" json:"local_geoip,omitempty"`
+	DomainMatcher  string            `protobuf:"bytes,17,opt,name=domain_matcher,json=domainMatcher,proto3" json:"domain_matcher,omitempty"`
-	LocalPortList  *net.PortList     `protobuf:"bytes,18,opt,name=local_port_list,json=localPortList,proto3" json:"local_port_list,omitempty"`
+	LocalGeoip     []*GeoIP          `protobuf:"bytes,18,rep,name=local_geoip,json=localGeoip,proto3" json:"local_geoip,omitempty"`
-	VlessRouteList *net.PortList     `protobuf:"bytes,20,opt,name=vless_route_list,json=vlessRouteList,proto3" json:"vless_route_list,omitempty"`
+	LocalPortList  *net.PortList     `protobuf:"bytes,19,opt,name=local_port_list,json=localPortList,proto3" json:"local_port_list,omitempty"`
 }
 
 func (x *RoutingRule) Reset() {
@@ -624,6 +624,13 @@ func (x *RoutingRule) GetAttributes() map[string]string {
 	return nil
 }
 
+func (x *RoutingRule) GetDomainMatcher() string {
+	if x != nil {
+		return x.DomainMatcher
+	}
+	return ""
+}
+
 func (x *RoutingRule) GetLocalGeoip() []*GeoIP {
 	if x != nil {
 		return x.LocalGeoip
@@ -638,13 +645,6 @@ func (x *RoutingRule) GetLocalPortList() *net.PortList {
 	return nil
 }
 
-func (x *RoutingRule) GetVlessRouteList() *net.PortList {
-	if x != nil {
-		return x.VlessRouteList
-	}
-	return nil
-}
-
 type isRoutingRule_TargetTag interface {
 	isRoutingRule_TargetTag()
 }
@@ -1085,13 +1085,13 @@ var file_app_router_config_proto_rawDesc = []byte{
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@@ -1123,79 +1123,77 @@ var file_app_router_config_proto_rawDesc = []byte{
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+	0x72, 0x6f, 0x74, 0x6f, 0x33,
-	0x2e, 0x41, 0x70, 0x70, 0x2e, 0x52, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x62, 0x06, 0x70, 0x72, 0x6f,
-	0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1248,17 +1246,16 @@ var file_app_router_config_proto_depIdxs = []int32{
 	14, // 12: xray.app.router.RoutingRule.attributes:type_name -> xray.app.router.RoutingRule.AttributesEntry
 	4,  // 13: xray.app.router.RoutingRule.local_geoip:type_name -> xray.app.router.GeoIP
 	15, // 14: xray.app.router.RoutingRule.local_port_list:type_name -> xray.common.net.PortList
-	15, // 15: xray.app.router.RoutingRule.vless_route_list:type_name -> xray.common.net.PortList
+	17, // 15: xray.app.router.BalancingRule.strategy_settings:type_name -> xray.common.serial.TypedMessage
-	17, // 16: xray.app.router.BalancingRule.strategy_settings:type_name -> xray.common.serial.TypedMessage
+	10, // 16: xray.app.router.StrategyLeastLoadConfig.costs:type_name -> xray.app.router.StrategyWeight
-	10, // 17: xray.app.router.StrategyLeastLoadConfig.costs:type_name -> xray.app.router.StrategyWeight
+	1,  // 17: xray.app.router.Config.domain_strategy:type_name -> xray.app.router.Config.DomainStrategy
-	1,  // 18: xray.app.router.Config.domain_strategy:type_name -> xray.app.router.Config.DomainStrategy
+	8,  // 18: xray.app.router.Config.rule:type_name -> xray.app.router.RoutingRule
-	8,  // 19: xray.app.router.Config.rule:type_name -> xray.app.router.RoutingRule
+	9,  // 19: xray.app.router.Config.balancing_rule:type_name -> xray.app.router.BalancingRule
-	9,  // 20: xray.app.router.Config.balancing_rule:type_name -> xray.app.router.BalancingRule
+	20, // [20:20] is the sub-list for method output_type
-	21, // [21:21] is the sub-list for method output_type
+	20, // [20:20] is the sub-list for method input_type
-	21, // [21:21] is the sub-list for method input_type
+	20, // [20:20] is the sub-list for extension type_name
-	21, // [21:21] is the sub-list for extension type_name
+	20, // [20:20] is the sub-list for extension extendee
-	21, // [21:21] is the sub-list for extension extendee
+	0,  // [0:20] is the sub-list for field type_name
-	0,  // [0:21] is the sub-list for field type_name
 }
 
 func init() { file_app_router_config_proto_init() }

app/router/config.proto

@@ -79,7 +79,7 @@ message RoutingRule {
     // Tag of routing balancer.
     string balancing_tag = 12;
   }
-    string rule_tag = 19;
+    string rule_tag = 20;
 
   // List of domains for target domain matching.
   repeated Domain domain = 2;
@@ -109,10 +109,10 @@ message RoutingRule {
 
   map<string, string> attributes = 15;
 
-  repeated GeoIP local_geoip = 17;
+  string domain_matcher = 17;
-  xray.common.net.PortList local_port_list = 18;
 
-  xray.common.net.PortList vless_route_list = 20;
+  repeated GeoIP local_geoip = 18;
+  xray.common.net.PortList local_port_list = 19;
 }
 
 message BalancingRule {

common/buf/buffer.go

@@ -13,8 +13,6 @@ const (
 	Size = 8192
 )
 
-var ErrBufferFull = errors.New("buffer is full")
-
 var zero = [Size * 10]byte{0}
 
 var pool = bytespool.GetPool(Size)
@@ -246,14 +244,6 @@ func (b *Buffer) Cap() int32 {
 	return int32(len(b.v))
 }
 
-// Available returns the available capacity of the buffer content.
-func (b *Buffer) Available() int32 {
-	if b == nil {
-		return 0
-	}
-	return int32(len(b.v)) - b.end
-}
-
 // IsEmpty returns true if the buffer is empty.
 func (b *Buffer) IsEmpty() bool {
 	return b.Len() == 0
@@ -268,16 +258,13 @@ func (b *Buffer) IsFull() bool {
 func (b *Buffer) Write(data []byte) (int, error) {
 	nBytes := copy(b.v[b.end:], data)
 	b.end += int32(nBytes)
-	if nBytes < len(data) {
-		return nBytes, ErrBufferFull
-	}
 	return nBytes, nil
 }
 
 // WriteByte writes a single byte into the buffer.
 func (b *Buffer) WriteByte(v byte) error {
 	if b.IsFull() {
-		return ErrBufferFull
+		return errors.New("buffer full")
 	}
 	b.v[b.end] = v
 	b.end++

common/buf/multi_buffer.go

@@ -144,7 +144,7 @@ func Compact(mb MultiBuffer) MultiBuffer {
 
 	for i := 1; i < len(mb); i++ {
 		curr := mb[i]
-		if curr.Len() > last.Available() {
+		if last.Len()+curr.Len() > Size {
 			mb2 = append(mb2, last)
 			last = curr
 		} else {

common/buf/multi_buffer_test.go

@@ -175,29 +175,6 @@ func TestCompact(t *testing.T) {
 	}
 }
 
-func TestCompactWithConsumed(t *testing.T) {
-	// make a consumed buffer (a.Start != 0)
-	a := New()
-	for range 8192 {
-		common.Must2(a.WriteString("a"))
-	}
-	a.Read(make([]byte, 2))
-
-	b := New()
-	for range 2 {
-		common.Must2(b.WriteString("b"))
-	}
-
-	mb := MultiBuffer{a, b}
-	cmb := Compact(mb)
-	mbc := &MultiBufferContainer{mb}
-	mbc.Read(make([]byte, 8190))
-
-	if w := cmb.String(); w != "bb" {
-		t.Error("unexpected Compact result ", w)
-	}
-}
-
 func BenchmarkSplitBytes(b *testing.B) {
 	var mb MultiBuffer
 	raw := make([]byte, Size)

common/common.go

@@ -23,9 +23,7 @@ func Must(err error) {
 }
 
 // Must2 panics if the second parameter is not nil, otherwise returns the first parameter.
-// This is useful when function returned "sth, err" and avoid many "if err != nil"
+func Must2(v interface{}, err error) interface{} {
-// Internal usage only, if user input can cause err, it must be handled
-func Must2[T any](v T, err error) T {
 	Must(err)
 	return v
 }

common/crypto/aes.go

@@ -32,7 +32,9 @@ func NewAesCTRStream(key []byte, iv []byte) cipher.Stream {
 
 // NewAesGcm creates a AEAD cipher based on AES-GCM.
 func NewAesGcm(key []byte) cipher.AEAD {
-	block := common.Must2(aes.NewCipher(key))
+	block, err := aes.NewCipher(key)
-	aead := common.Must2(cipher.NewGCM(block))
+	common.Must(err)
+	aead, err := cipher.NewGCM(block)
+	common.Must(err)
 	return aead
 }

common/crypto/auth_test.go

@@ -2,6 +2,8 @@ package crypto_test
 
 import (
 	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
 	"crypto/rand"
 	"io"
 	"testing"
@@ -16,8 +18,11 @@ import (
 func TestAuthenticationReaderWriter(t *testing.T) {
 	key := make([]byte, 16)
 	rand.Read(key)
+	block, err := aes.NewCipher(key)
+	common.Must(err)
 
-	aead := NewAesGcm(key)
+	aead, err := cipher.NewGCM(block)
+	common.Must(err)
 
 	const payloadSize = 1024 * 80
 	rawPayload := make([]byte, payloadSize)
@@ -66,7 +71,7 @@ func TestAuthenticationReaderWriter(t *testing.T) {
 		t.Error(r)
 	}
 
-	_, err := reader.ReadMultiBuffer()
+	_, err = reader.ReadMultiBuffer()
 	if err != io.EOF {
 		t.Error("error: ", err)
 	}
@@ -75,8 +80,11 @@ func TestAuthenticationReaderWriter(t *testing.T) {
 func TestAuthenticationReaderWriterPacket(t *testing.T) {
 	key := make([]byte, 16)
 	common.Must2(rand.Read(key))
+	block, err := aes.NewCipher(key)
+	common.Must(err)
 
-	aead := NewAesGcm(key)
+	aead, err := cipher.NewGCM(block)
+	common.Must(err)
 
 	cache := buf.New()
 	iv := make([]byte, 12)

common/mux/server.go

@@ -118,7 +118,9 @@ func (w *ServerWorker) handleStatusKeepAlive(meta *FrameMetadata, reader *buf.Bu
 }
 
 func (w *ServerWorker) handleStatusNew(ctx context.Context, meta *FrameMetadata, reader *buf.BufferedReader) error {
-	ctx = session.SubContextFromMuxInbound(ctx)
+	// deep-clone outbounds because it is going to be mutated concurrently
+	// (Target and OriginalTarget)
+	ctx = session.ContextCloneOutboundsAndContent(ctx)
 	errors.LogInfo(ctx, "received request for ", meta.Target)
 	{
 		msg := &log.AccessMessage{

common/protocol/headers.go

@@ -79,20 +79,18 @@ type CommandSwitchAccount struct {
 }
 
 var (
-	hasGCMAsmAMD64 = cpu.X86.HasAES && cpu.X86.HasPCLMULQDQ
+	// Keep in sync with crypto/tls/cipher_suites.go.
+	hasGCMAsmAMD64 = cpu.X86.HasAES && cpu.X86.HasPCLMULQDQ && cpu.X86.HasSSE41 && cpu.X86.HasSSSE3
 	hasGCMAsmARM64 = cpu.ARM64.HasAES && cpu.ARM64.HasPMULL
-	// Keep in sync with crypto/aes/cipher_s390x.go.
+	hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCTR && cpu.S390X.HasGHASH
-	hasGCMAsmS390X = cpu.S390X.HasAES && cpu.S390X.HasAESCBC && cpu.S390X.HasAESCTR &&
+	hasGCMAsmPPC64 = runtime.GOARCH == "ppc64" || runtime.GOARCH == "ppc64le"
-		(cpu.S390X.HasGHASH || cpu.S390X.HasAESGCM)
 
-	hasAESGCMHardwareSupport = runtime.GOARCH == "amd64" && hasGCMAsmAMD64 ||
+	HasAESGCMHardwareSupport = hasGCMAsmAMD64 || hasGCMAsmARM64 || hasGCMAsmS390X || hasGCMAsmPPC64
-		runtime.GOARCH == "arm64" && hasGCMAsmARM64 ||
-		runtime.GOARCH == "s390x" && hasGCMAsmS390X
 )
 
 func (sc *SecurityConfig) GetSecurityType() SecurityType {
 	if sc == nil || sc.Type == SecurityType_AUTO {
-		if hasAESGCMHardwareSupport {
+		if HasAESGCMHardwareSupport {
 			return SecurityType_AES128_GCM
 		}
 		return SecurityType_CHACHA20_POLY1305

common/reflect/marshal_test.go

@@ -184,7 +184,8 @@ func getConfig() string {
         "inboundTag": [
           "api-in"
         ],
-        "outboundTag": "api"
+        "outboundTag": "api",
+        "type": "field"
       }
     ],
     "domainStrategy": "AsIs"

common/session/context.go

@@ -16,15 +16,15 @@ const (
 	inboundSessionKey         ctx.SessionKey = 1
 	outboundSessionKey        ctx.SessionKey = 2
 	contentSessionKey         ctx.SessionKey = 3
-	muxPreferredSessionKey    ctx.SessionKey = 4 // unused
+	muxPreferredSessionKey    ctx.SessionKey = 4
-	sockoptSessionKey         ctx.SessionKey = 5 // used by dokodemo to only receive sockopt.Mark
+	sockoptSessionKey         ctx.SessionKey = 5
-	trackedConnectionErrorKey ctx.SessionKey = 6 // used by observer to get outbound error
+	trackedConnectionErrorKey ctx.SessionKey = 6
-	dispatcherKey             ctx.SessionKey = 7 // used by ss2022 inbounds to get dispatcher
+	dispatcherKey             ctx.SessionKey = 7
-	timeoutOnlyKey            ctx.SessionKey = 8 // mux context's child contexts to only cancel when its own traffic times out
+	timeoutOnlyKey            ctx.SessionKey = 8
-	allowedNetworkKey         ctx.SessionKey = 9 // muxcool server control incoming request tcp/udp
+	allowedNetworkKey         ctx.SessionKey = 9
-	handlerSessionKey         ctx.SessionKey = 10 // unused
+	handlerSessionKey         ctx.SessionKey = 10
-	mitmAlpn11Key             ctx.SessionKey = 11 // used by TLS dialer
+	mitmAlpn11Key             ctx.SessionKey = 11
-	mitmServerNameKey         ctx.SessionKey = 12 // used by TLS dialer
+	mitmServerNameKey         ctx.SessionKey = 12
 )
 
 func ContextWithInbound(ctx context.Context, inbound *Inbound) context.Context {
@@ -42,8 +42,18 @@ func ContextWithOutbounds(ctx context.Context, outbounds []*Outbound) context.Co
 	return context.WithValue(ctx, outboundSessionKey, outbounds)
 }
 
-func SubContextFromMuxInbound(ctx context.Context) context.Context {
+func ContextCloneOutboundsAndContent(ctx context.Context) context.Context {
-	newOutbounds := []*Outbound{{}}
+	outbounds := OutboundsFromContext(ctx)
+	newOutbounds := make([]*Outbound, len(outbounds))
+	for i, ob := range outbounds {
+		if ob == nil {
+			continue
+		}
+
+		// copy outbound by value
+		v := *ob
+		newOutbounds[i] = &v
+	}
 
 	content := ContentFromContext(ctx)
 	newContent := Content{}

common/session/session.go

@@ -46,11 +46,9 @@ type Inbound struct {
 	Name string
 	// User is the user that authenticates for the inbound. May be nil if the protocol allows anonymous traffic.
 	User *protocol.MemoryUser
-	// VlessRoute is the user-sent VLESS UUID's 7th<<8 | 8th bytes.
+	// Conn is actually internet.Connection. May be nil.
-	VlessRoute net.Port
-	// Used by splice copy. Conn is actually internet.Connection. May be nil.
 	Conn net.Conn
-	// Used by splice copy. Timer of the inbound buf copier. May be nil.
+	// Timer of the inbound buf copier. May be nil.
 	Timer *signal.ActivityTimer
 	// CanSpliceCopy is a property for this connection
 	// 1 = can, 2 = after processing protocol info should be able to, 3 = cannot
@@ -69,33 +67,31 @@ type Outbound struct {
 	Tag string
 	// Name of the outbound proxy that handles the connection.
 	Name string
-	// Unused. Conn is actually internet.Connection. May be nil. It is currently nil for outbound with proxySettings
+	// Conn is actually internet.Connection. May be nil. It is currently nil for outbound with proxySettings
 	Conn net.Conn
 	// CanSpliceCopy is a property for this connection
 	// 1 = can, 2 = after processing protocol info should be able to, 3 = cannot
 	CanSpliceCopy int
 }
 
-// SniffingRequest controls the behavior of content sniffing. They are from inbound config. Read-only
+// SniffingRequest controls the behavior of content sniffing.
 type SniffingRequest struct {
-	ExcludeForDomain               []string
+	ExcludeForDomain               []string // read-only once set
-	OverrideDestinationForProtocol []string
+	OverrideDestinationForProtocol []string // read-only once set
 	Enabled                        bool
 	MetadataOnly                   bool
 	RouteOnly                      bool
 }
 
-// Content is the metadata of the connection content. Mainly used for routing.
+// Content is the metadata of the connection content.
 type Content struct {
 	// Protocol of current content.
 	Protocol string
 
 	SniffingRequest SniffingRequest
 
-	// HTTP traffic sniffed headers
 	Attributes map[string]string
 
-	// SkipDNSResolve is set from DNS module. the DOH remote server maybe a domain name, this prevents cycle resolving dead loop
 	SkipDNSResolve bool
 }
 

features/routing/context.go

@@ -41,9 +41,6 @@ type Context interface {
 	// GetUser returns the user email from the connection content, if exists.
 	GetUser() string
 
-	// GetVlessRoute returns the user-sent VLESS UUID's 7th<<8 | 8th bytes, if exists.
-	GetVlessRoute() net.Port
-
 	// GetAttributes returns extra attributes from the conneciont content.
 	GetAttributes() map[string]string
 

features/routing/session/context.go

@@ -128,14 +128,6 @@ func (ctx *Context) GetUser() string {
 	return ctx.Inbound.User.Email
 }
 
-// GetVlessRoute implements routing.Context.
-func (ctx *Context) GetVlessRoute() net.Port {
-	if ctx.Inbound == nil {
-		return 0
-	}
-	return ctx.Inbound.VlessRoute
-}
-
 // GetAttributes implements routing.Context.
 func (ctx *Context) GetAttributes() map[string]string {
 	if ctx.Content == nil {

go.mod

@@ -1,6 +1,6 @@
 module github.com/xtls/xray-core
 
-go 1.25
+go 1.24
 
 require (
 	github.com/cloudflare/circl v1.6.1

infra/conf/dns_proxy.go

@@ -28,7 +28,9 @@ func (c *DNSOutboundConfig) Build() (proto.Message, error) {
 		config.Server.Address = c.Address.Build()
 	}
 	switch c.NonIPQuery {
-	case "", "reject", "drop", "skip":
+	case "":
+		c.NonIPQuery = "drop"
+	case "drop", "skip", "reject":
 	default:
 		return nil, errors.New(`unknown "nonIPQuery": `, c.NonIPQuery)
 	}

infra/conf/dns_proxy_test.go

@@ -27,6 +27,7 @@ func TestDnsProxyConfig(t *testing.T) {
 					Address: net.NewIPOrDomain(net.IPAddress([]byte{8, 8, 8, 8})),
 					Port:    53,
 				},
+				Non_IPQuery: "drop",
 			},
 		},
 	})

infra/conf/freedom.go

@@ -11,11 +11,9 @@ import (
 	"github.com/xtls/xray-core/common/protocol"
 	"github.com/xtls/xray-core/proxy/freedom"
 	"google.golang.org/protobuf/proto"
-	"github.com/xtls/xray-core/transport/internet"
 )
 
 type FreedomConfig struct {
-	TargetStrategy string    `json:"targetStrategy"`
 	DomainStrategy string    `json:"domainStrategy"`
 	Redirect       string    `json:"redirect"`
 	UserLevel      uint32    `json:"userLevel"`
@@ -42,35 +40,31 @@ type Noise struct {
 // Build implements Buildable
 func (c *FreedomConfig) Build() (proto.Message, error) {
 	config := new(freedom.Config)
-	targetStrategy := c.TargetStrategy
+	switch strings.ToLower(c.DomainStrategy) {
-	if targetStrategy == "" {
-		targetStrategy = c.DomainStrategy
-	}
-	switch strings.ToLower(targetStrategy) {
 	case "asis", "":
-		config.DomainStrategy = internet.DomainStrategy_AS_IS
+		config.DomainStrategy = freedom.Config_AS_IS
 	case "useip":
-		config.DomainStrategy = internet.DomainStrategy_USE_IP
+		config.DomainStrategy = freedom.Config_USE_IP
 	case "useipv4":
-		config.DomainStrategy = internet.DomainStrategy_USE_IP4
+		config.DomainStrategy = freedom.Config_USE_IP4
 	case "useipv6":
-		config.DomainStrategy = internet.DomainStrategy_USE_IP6
+		config.DomainStrategy = freedom.Config_USE_IP6
 	case "useipv4v6":
-		config.DomainStrategy = internet.DomainStrategy_USE_IP46
+		config.DomainStrategy = freedom.Config_USE_IP46
 	case "useipv6v4":
-		config.DomainStrategy = internet.DomainStrategy_USE_IP64
+		config.DomainStrategy = freedom.Config_USE_IP64
 	case "forceip":
-		config.DomainStrategy = internet.DomainStrategy_FORCE_IP
+		config.DomainStrategy = freedom.Config_FORCE_IP
 	case "forceipv4":
-		config.DomainStrategy = internet.DomainStrategy_FORCE_IP4
+		config.DomainStrategy = freedom.Config_FORCE_IP4
 	case "forceipv6":
-		config.DomainStrategy = internet.DomainStrategy_FORCE_IP6
+		config.DomainStrategy = freedom.Config_FORCE_IP6
 	case "forceipv4v6":
-		config.DomainStrategy = internet.DomainStrategy_FORCE_IP46
+		config.DomainStrategy = freedom.Config_FORCE_IP46
 	case "forceipv6v4":
-		config.DomainStrategy = internet.DomainStrategy_FORCE_IP64
+		config.DomainStrategy = freedom.Config_FORCE_IP64
 	default:
-		return nil, errors.New("unsupported domain strategy: ", targetStrategy)
+		return nil, errors.New("unsupported domain strategy: ", c.DomainStrategy)
 	}
 
 	if c.Fragment != nil {

infra/conf/freedom_test.go

@@ -7,7 +7,6 @@ import (
 	"github.com/xtls/xray-core/common/protocol"
 	. "github.com/xtls/xray-core/infra/conf"
 	"github.com/xtls/xray-core/proxy/freedom"
-	"github.com/xtls/xray-core/transport/internet"
 )
 
 func TestFreedomConfig(t *testing.T) {
@@ -24,7 +23,7 @@ func TestFreedomConfig(t *testing.T) {
 			}`,
 			Parser: loadJSON(creator),
 			Output: &freedom.Config{
-				DomainStrategy: internet.DomainStrategy_AS_IS,
+				DomainStrategy: freedom.Config_AS_IS,
 				DestinationOverride: &freedom.DestinationOverride{
 					Server: &protocol.ServerEndpoint{
 						Address: &net.IPOrDomain{

infra/conf/router.go

@@ -74,6 +74,8 @@ type RouterConfig struct {
 	RuleList       []json.RawMessage `json:"rules"`
 	DomainStrategy *string           `json:"domainStrategy"`
 	Balancers      []*BalancingRule  `json:"balancers"`
+
+	DomainMatcher string `json:"domainMatcher"`
 }
 
 func (c *RouterConfig) getDomainStrategy() router.Config_DomainStrategy {
@@ -109,6 +111,10 @@ func (c *RouterConfig) Build() (*router.Config, error) {
 			return nil, err
 		}
 
+		if rule.DomainMatcher == "" {
+			rule.DomainMatcher = c.DomainMatcher
+		}
+
 		config.Rule = append(config.Rule, rule)
 	}
 	for _, rawBalancer := range c.Balancers {
@@ -123,8 +129,11 @@ func (c *RouterConfig) Build() (*router.Config, error) {
 
 type RouterRule struct {
 	RuleTag     string `json:"ruleTag"`
+	Type        string `json:"type"`
 	OutboundTag string `json:"outboundTag"`
 	BalancerTag string `json:"balancerTag"`
+
+	DomainMatcher string `json:"domainMatcher"`
 }
 
 func ParseIP(s string) (*router.CIDR, error) {
@@ -531,7 +540,6 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		Source     *StringList       `json:"source"`
 		SourcePort *PortList         `json:"sourcePort"`
 		User       *StringList       `json:"user"`
-		VlessRoute *PortList         `json:"vlessRoute"`
 		InboundTag *StringList       `json:"inboundTag"`
 		Protocols  *StringList       `json:"protocol"`
 		Attributes map[string]string `json:"attrs"`
@@ -559,6 +567,10 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		return nil, errors.New("neither outboundTag nor balancerTag is specified in routing rule")
 	}
 
+	if rawFieldRule.DomainMatcher != "" {
+		rule.DomainMatcher = rawFieldRule.DomainMatcher
+	}
+
 	if rawFieldRule.Domain != nil {
 		for _, domain := range *rawFieldRule.Domain {
 			rules, err := parseDomainRule(domain)
@@ -629,10 +641,6 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		}
 	}
 
-	if rawFieldRule.VlessRoute != nil {
-		rule.VlessRouteList = rawFieldRule.VlessRoute.Build()
-	}
-
 	if rawFieldRule.InboundTag != nil {
 		for _, s := range *rawFieldRule.InboundTag {
 			rule.InboundTag = append(rule.InboundTag, s)
@@ -658,10 +666,12 @@ func ParseRule(msg json.RawMessage) (*router.RoutingRule, error) {
 	if err != nil {
 		return nil, errors.New("invalid router rule").Base(err)
 	}
-
+	if rawRule.Type == "" || strings.EqualFold(rawRule.Type, "field") {
-	fieldrule, err := parseFieldRule(msg)
+		fieldrule, err := parseFieldRule(msg)
-	if err != nil {
+		if err != nil {
-		return nil, errors.New("invalid field rule").Base(err)
+			return nil, errors.New("invalid field rule").Base(err)
+		}
+		return fieldrule, nil
 	}
-	return fieldrule, nil
+	return nil, errors.New("unknown router rule type: ", rawRule.Type)
 }

infra/conf/router_test.go

@@ -91,6 +91,7 @@ func TestRouterConfig(t *testing.T) {
 				"domainStrategy": "AsIs",
 				"rules": [
 					{
+						"type": "field",
 						"domain": [
 							"baidu.com",
 							"qq.com"
@@ -98,15 +99,18 @@ func TestRouterConfig(t *testing.T) {
 						"outboundTag": "direct"
 					},
 					{
+						"type": "field",
 						"ip": [
 							"10.0.0.0/8",
 							"::1/128"
 						],
 						"outboundTag": "test"
 					},{
+						"type": "field",
 						"port": "53, 443, 1000-2000",
 						"outboundTag": "test"
 					},{
+						"type": "field",
 						"port": 123,
 						"outboundTag": "test"
 					}
@@ -245,6 +249,7 @@ func TestRouterConfig(t *testing.T) {
 				"domainStrategy": "IPIfNonMatch",
 				"rules": [
 					{
+						"type": "field",
 						"domain": [
 							"baidu.com",
 							"qq.com"
@@ -252,6 +257,7 @@ func TestRouterConfig(t *testing.T) {
 						"outboundTag": "direct"
 					},
 					{
+						"type": "field",
 						"ip": [
 							"10.0.0.0/8",
 							"::1/128"

infra/conf/vless.go

@@ -1,6 +1,7 @@
 package conf
 
 import (
+	"encoding/base64"
 	"encoding/json"
 	"path/filepath"
 	"runtime"
@@ -32,20 +33,12 @@ type VLessInboundConfig struct {
 	Clients    []json.RawMessage       `json:"clients"`
 	Decryption string                  `json:"decryption"`
 	Fallbacks  []*VLessInboundFallback `json:"fallbacks"`
-	Flow       string                  `json:"flow"`
 }
 
 // Build implements Buildable
 func (c *VLessInboundConfig) Build() (proto.Message, error) {
 	config := new(inbound.Config)
 	config.Clients = make([]*protocol.User, len(c.Clients))
-	switch c.Flow {
-	case vless.None:
-		c.Flow = ""
-	case "", vless.XRV:
-	default:
-		return nil, errors.New(`VLESS "settings.flow" doesn't support "` + c.Flow + `" in this version`)
-	}
 	for idx, rawUser := range c.Clients {
 		user := new(protocol.User)
 		if err := json.Unmarshal(rawUser, user); err != nil {
@@ -63,11 +56,7 @@ func (c *VLessInboundConfig) Build() (proto.Message, error) {
 		account.Id = u.String()
 
 		switch account.Flow {
-		case "":
+		case "", vless.XRV:
-			account.Flow = c.Flow
-		case vless.None:
-			account.Flow = ""
-		case vless.XRV:
 		default:
 			return nil, errors.New(`VLESS clients: "flow" doesn't support "` + account.Flow + `" in this version`)
 		}
@@ -80,10 +69,46 @@ func (c *VLessInboundConfig) Build() (proto.Message, error) {
 		config.Clients[idx] = user
 	}
 
-	if c.Decryption != "none" {
-		return nil, errors.New(`VLESS settings: please add/set "decryption":"none" to every settings`)
-	}
 	config.Decryption = c.Decryption
+	if !func() bool {
+		s := strings.Split(config.Decryption, ".")
+		if len(s) != 5 || s[2] != "mlkem768Seed" {
+			return false
+		}
+		if s[0] != "1rtt" {
+			t := strings.TrimSuffix(s[0], "min")
+			if t == s[0] {
+				return false
+			}
+			i, err := strconv.Atoi(t)
+			if err != nil {
+				return false
+			}
+			config.Minutes = uint32(i)
+		}
+		switch s[1] {
+		case "native":
+		case "divide":
+			config.XorMode = 1
+		case "random":
+			config.XorMode = 2
+		default:
+			return false
+		}
+		if b, _ := base64.RawURLEncoding.DecodeString(s[3]); len(b) != 32 {
+			return false
+		}
+		if b, _ := base64.RawURLEncoding.DecodeString(s[4]); len(b) != 64 {
+			return false
+		}
+		config.Decryption = s[4] + "." + s[3]
+		return true
+	}() && config.Decryption != "none" {
+		if config.Decryption == "" {
+			return nil, errors.New(`VLESS settings: please add/set "decryption":"none" to every settings`)
+		}
+		return nil, errors.New(`VLESS settings: unsupported "decryption": ` + config.Decryption)
+	}
 
 	for _, fb := range c.Fallbacks {
 		var i uint16
@@ -155,16 +180,16 @@ type VLessOutboundConfig struct {
 func (c *VLessOutboundConfig) Build() (proto.Message, error) {
 	config := new(outbound.Config)
 
-	if len(c.Vnext) == 0 {
+	if len(c.Vnext) != 1 {
-		return nil, errors.New(`VLESS settings: "vnext" is empty`)
+		return nil, errors.New(`VLESS settings: "vnext" should have one and only one member`)
 	}
 	config.Vnext = make([]*protocol.ServerEndpoint, len(c.Vnext))
 	for idx, rec := range c.Vnext {
 		if rec.Address == nil {
 			return nil, errors.New(`VLESS vnext: "address" is not set`)
 		}
-		if len(rec.Users) == 0 {
+		if len(rec.Users) != 1 {
-			return nil, errors.New(`VLESS vnext: "users" is empty`)
+			return nil, errors.New(`VLESS vnext: "users" should have one and only one member`)
 		}
 		spec := &protocol.ServerEndpoint{
 			Address: rec.Address.Build(),
@@ -193,8 +218,44 @@ func (c *VLessOutboundConfig) Build() (proto.Message, error) {
 				return nil, errors.New(`VLESS users: "flow" doesn't support "` + account.Flow + `" in this version`)
 			}
 
-			if account.Encryption != "none" {
+			if !func() bool {
-				return nil, errors.New(`VLESS users: please add/set "encryption":"none" for every user`)
+				s := strings.Split(account.Encryption, ".")
+				if len(s) != 5 || s[2] != "mlkem768Client" {
+					return false
+				}
+				if s[0] != "1rtt" {
+					t := strings.TrimSuffix(s[0], "min")
+					if t == s[0] {
+						return false
+					}
+					i, err := strconv.Atoi(t)
+					if err != nil {
+						return false
+					}
+					account.Minutes = uint32(i)
+				}
+				switch s[1] {
+				case "native":
+				case "divide":
+					account.XorMode = 1
+				case "random":
+					account.XorMode = 2
+				default:
+					return false
+				}
+				if b, _ := base64.RawURLEncoding.DecodeString(s[3]); len(b) != 32 {
+					return false
+				}
+				if b, _ := base64.RawURLEncoding.DecodeString(s[4]); len(b) != 1184 {
+					return false
+				}
+				account.Encryption = s[4] + "." + s[3]
+				return true
+			}() && account.Encryption != "none" {
+				if account.Encryption == "" {
+					return nil, errors.New(`VLESS users: please add/set "encryption":"none" for every user`)
+				}
+				return nil, errors.New(`VLESS users: unsupported "encryption": ` + account.Encryption)
 			}
 
 			user.Account = serial.ToTypedMessage(account)

infra/conf/xray.go

@@ -260,14 +260,13 @@ func (c *InboundDetourConfig) Build() (*core.InboundHandlerConfig, error) {
 }
 
 type OutboundDetourConfig struct {
-	Protocol       string           `json:"protocol"`
+	Protocol      string           `json:"protocol"`
-	SendThrough    *string          `json:"sendThrough"`
+	SendThrough   *string          `json:"sendThrough"`
-	Tag            string           `json:"tag"`
+	Tag           string           `json:"tag"`
-	Settings       *json.RawMessage `json:"settings"`
+	Settings      *json.RawMessage `json:"settings"`
-	StreamSetting  *StreamConfig    `json:"streamSettings"`
+	StreamSetting *StreamConfig    `json:"streamSettings"`
-	ProxySettings  *ProxyConfig     `json:"proxySettings"`
+	ProxySettings *ProxyConfig     `json:"proxySettings"`
-	MuxSettings    *MuxConfig       `json:"mux"`
+	MuxSettings   *MuxConfig       `json:"mux"`
-	TargetStrategy string           `json:"targetStrategy"`
 }
 
 func (c *OutboundDetourConfig) checkChainProxyConfig() error {
@@ -283,32 +282,6 @@ func (c *OutboundDetourConfig) checkChainProxyConfig() error {
 // Build implements Buildable.
 func (c *OutboundDetourConfig) Build() (*core.OutboundHandlerConfig, error) {
 	senderSettings := &proxyman.SenderConfig{}
-	switch strings.ToLower(c.TargetStrategy) {
-	case "asis", "":
-		senderSettings.TargetStrategy = internet.DomainStrategy_AS_IS
-	case "useip":
-		senderSettings.TargetStrategy = internet.DomainStrategy_USE_IP
-	case "useipv4":
-		senderSettings.TargetStrategy = internet.DomainStrategy_USE_IP4
-	case "useipv6":
-		senderSettings.TargetStrategy = internet.DomainStrategy_USE_IP6
-	case "useipv4v6":
-		senderSettings.TargetStrategy = internet.DomainStrategy_USE_IP46
-	case "useipv6v4":
-		senderSettings.TargetStrategy = internet.DomainStrategy_USE_IP64
-	case "forceip":
-		senderSettings.TargetStrategy = internet.DomainStrategy_FORCE_IP
-	case "forceipv4":
-		senderSettings.TargetStrategy = internet.DomainStrategy_FORCE_IP4
-	case "forceipv6":
-		senderSettings.TargetStrategy = internet.DomainStrategy_FORCE_IP6
-	case "forceipv4v6":
-		senderSettings.TargetStrategy = internet.DomainStrategy_FORCE_IP46
-	case "forceipv6v4":
-		senderSettings.TargetStrategy = internet.DomainStrategy_FORCE_IP64
-	default:
-		return nil, errors.New("unsupported target domain strategy: ", c.TargetStrategy)
-	}
 	if err := c.checkChainProxyConfig(); err != nil {
 		return nil, err
 	}

infra/conf/xray_test.go

@@ -77,6 +77,7 @@ func TestXrayConfig(t *testing.T) {
 							"ip": [
 								"10.0.0.0/8"
 							],
+							"type": "field",
 							"outboundTag": "blocked"
 						}
 					]

main/commands/all/api/source_ip_block.go

@@ -93,6 +93,7 @@ func executeSourceIpBlock(cmd *base.Command, args []string) {
 				"ruleTag" : "%s",
 				"inboundTag": %s,		
 				"outboundTag": "%s",
+				"type": "field",
 				"source": %s
 			  }
 			]

main/commands/all/commands.go

@@ -17,5 +17,6 @@ func init() {
 		cmdX25519,
 		cmdWG,
 		cmdMLDSA65,
+		cmdMLKEM768,
 	)
 }

main/commands/all/curve25519.go

@@ -1,17 +1,13 @@
 package all
 
 import (
+	"crypto/ecdh"
 	"crypto/rand"
 	"encoding/base64"
 	"fmt"
-
-	"golang.org/x/crypto/curve25519"
 )
 
 func Curve25519Genkey(StdEncoding bool, input_base64 string) {
-	var output string
-	var err error
-	var privateKey, publicKey []byte
 	var encoding *base64.Encoding
 	if *input_stdEncoding || StdEncoding {
 		encoding = base64.StdEncoding
@@ -19,40 +15,32 @@ func Curve25519Genkey(StdEncoding bool, input_base64 string) {
 		encoding = base64.RawURLEncoding
 	}
 
+	var privateKey []byte
 	if len(input_base64) > 0 {
-		privateKey, err = encoding.DecodeString(input_base64)
+		privateKey, _ = encoding.DecodeString(input_base64)
-		if err != nil {
+		if len(privateKey) != 32 {
-			output = err.Error()
+			fmt.Println("Invalid length of X25519 private key.")
-			goto out
+			return
-		}
-		if len(privateKey) != curve25519.ScalarSize {
-			output = "Invalid length of private key."
-			goto out
 		}
 	}
-
 	if privateKey == nil {
-		privateKey = make([]byte, curve25519.ScalarSize)
+		privateKey = make([]byte, 32)
-		if _, err = rand.Read(privateKey); err != nil {
+		rand.Read(privateKey)
-			output = err.Error()
-			goto out
-		}
 	}
 
 	// Modify random bytes using algorithm described at:
-	// https://cr.yp.to/ecdh.html.
+	// https://cr.yp.to/ecdh.html
+	// (Just to make sure printing the real private key)
 	privateKey[0] &= 248
 	privateKey[31] &= 127
 	privateKey[31] |= 64
 
-	if publicKey, err = curve25519.X25519(privateKey, curve25519.Basepoint); err != nil {
+	key, err := ecdh.X25519().NewPrivateKey(privateKey)
-		output = err.Error()
+	if err != nil {
-		goto out
+		fmt.Println(err.Error())
+		return
 	}
-
+	fmt.Printf("PrivateKey: %v\nPassword: %v",
-	output = fmt.Sprintf("Private key: %v\nPublic key: %v",
 		encoding.EncodeToString(privateKey),
-		encoding.EncodeToString(publicKey))
+		encoding.EncodeToString(key.PublicKey().Bytes()))
-out:
-	fmt.Println(output)
 }

main/commands/all/mldsa65.go

@@ -11,9 +11,9 @@ import (
 
 var cmdMLDSA65 = &base.Command{
 	UsageLine: `{{.Exec}} mldsa65 [-i "seed (base64.RawURLEncoding)"]`,
-	Short:     `Generate key pair for ML-DSA-65 post-quantum signature`,
+	Short:     `Generate key pair for ML-DSA-65 post-quantum signature (REALITY)`,
 	Long: `
-Generate key pair for ML-DSA-65 post-quantum signature.
+Generate key pair for ML-DSA-65 post-quantum signature (REALITY).
 
 Random: {{.Exec}} mldsa65
 
@@ -25,12 +25,16 @@ func init() {
 	cmdMLDSA65.Run = executeMLDSA65 // break init loop
 }
 
-var input_seed = cmdMLDSA65.Flag.String("i", "", "")
+var input_mldsa65 = cmdMLDSA65.Flag.String("i", "", "")
 
 func executeMLDSA65(cmd *base.Command, args []string) {
 	var seed [32]byte
-	if len(*input_seed) > 0 {
+	if len(*input_mldsa65) > 0 {
-		s, _ := base64.RawURLEncoding.DecodeString(*input_seed)
+		s, _ := base64.RawURLEncoding.DecodeString(*input_mldsa65)
+		if len(s) != 32 {
+			fmt.Println("Invalid length of ML-DSA-65 seed.")
+			return
+		}
 		seed = [32]byte(s)
 	} else {
 		rand.Read(seed[:])

main/commands/all/mlkem768.go

@@ -0,0 +1,50 @@
+package all
+
+import (
+	"crypto/mlkem"
+	"crypto/rand"
+	"crypto/sha3"
+	"encoding/base64"
+	"fmt"
+
+	"github.com/xtls/xray-core/main/commands/base"
+)
+
+var cmdMLKEM768 = &base.Command{
+	UsageLine: `{{.Exec}} mlkem768 [-i "seed (base64.RawURLEncoding)"]`,
+	Short:     `Generate key pair for ML-KEM-768 post-quantum key exchange (VLESS)`,
+	Long: `
+Generate key pair for ML-KEM-768 post-quantum key exchange (VLESS).
+
+Random: {{.Exec}} mlkem768
+
+From seed: {{.Exec}} mlkem768 -i "seed (base64.RawURLEncoding)"
+`,
+}
+
+func init() {
+	cmdMLKEM768.Run = executeMLKEM768 // break init loop
+}
+
+var input_mlkem768 = cmdMLKEM768.Flag.String("i", "", "")
+
+func executeMLKEM768(cmd *base.Command, args []string) {
+	var seed [64]byte
+	if len(*input_mlkem768) > 0 {
+		s, _ := base64.RawURLEncoding.DecodeString(*input_mlkem768)
+		if len(s) != 64 {
+			fmt.Println("Invalid length of ML-KEM-768 seed.")
+			return
+		}
+		seed = [64]byte(s)
+	} else {
+		rand.Read(seed[:])
+	}
+	key, _ := mlkem.NewDecapsulationKey768(seed[:])
+	client := key.EncapsulationKey().Bytes()
+	hash32 := sha3.Sum256(client)
+	fmt.Printf("Seed: %v\nClient: %v\nHash11: %v",
+		base64.RawURLEncoding.EncodeToString(seed[:]),
+		base64.RawURLEncoding.EncodeToString(client),
+		base64.RawURLEncoding.EncodeToString(hash32[:11]))
+}

main/commands/all/tls/ping.go

@@ -6,7 +6,9 @@ import (
 	"encoding/base64"
 	"fmt"
 	"net"
+	"reflect"
 	"strconv"
+	"unsafe"
 
 	"github.com/xtls/xray-core/main/commands/base"
 	. "github.com/xtls/xray-core/transport/internet/tls"
@@ -137,15 +139,14 @@ func printCertificates(certs []*x509.Certificate) {
 }
 
 func printTLSConnDetail(tlsConn *gotls.Conn) {
-	connectionState := tlsConn.ConnectionState()
 	var tlsVersion string
-	if connectionState.Version == gotls.VersionTLS13 {
+	if tlsConn.ConnectionState().Version == gotls.VersionTLS13 {
 		tlsVersion = "TLS 1.3"
-	} else if connectionState.Version == gotls.VersionTLS12 {
+	} else if tlsConn.ConnectionState().Version == gotls.VersionTLS12 {
 		tlsVersion = "TLS 1.2"
 	}
 	fmt.Println("TLS Version: ", tlsVersion)
-	curveID := connectionState.CurveID
+	curveID := *(*gotls.CurveID)(unsafe.Pointer(reflect.ValueOf(tlsConn).Elem().FieldByName("curveID").UnsafeAddr()))
 	if curveID != 0 {
 		PostQuantum := (curveID == gotls.X25519MLKEM768)
 		fmt.Println("TLS Post-Quantum key exchange: ", PostQuantum, "("+curveID.String()+")")

main/commands/all/uuid.go

@@ -9,9 +9,9 @@ import (
 
 var cmdUUID = &base.Command{
 	UsageLine: `{{.Exec}} uuid [-i "example"]`,
-	Short:     `Generate UUIDv4 or UUIDv5`,
+	Short:     `Generate UUIDv4 or UUIDv5 (VLESS)`,
 	Long: `
-Generate UUIDv4 or UUIDv5.
+Generate UUIDv4 or UUIDv5 (VLESS).
 
 UUIDv4 (random): {{.Exec}} uuid
 

main/commands/all/wg.go

@@ -6,9 +6,9 @@ import (
 
 var cmdWG = &base.Command{
 	UsageLine: `{{.Exec}} wg [-i "private key (base64.StdEncoding)"]`,
-	Short:     `Generate key pair for wireguard key exchange`,
+	Short:     `Generate key pair for X25519 key exchange (WireGuard)`,
 	Long: `
-Generate key pair for wireguard key exchange.
+Generate key pair for X25519 key exchange (WireGuard).
 
 Random: {{.Exec}} wg
 

main/commands/all/x25519.go

@@ -6,9 +6,9 @@ import (
 
 var cmdX25519 = &base.Command{
 	UsageLine: `{{.Exec}} x25519 [-i "private key (base64.RawURLEncoding)"] [--std-encoding]`,
-	Short:     `Generate key pair for x25519 key exchange`,
+	Short:     `Generate key pair for X25519 key exchange (VLESS, REALITY)`,
 	Long: `
-Generate key pair for x25519 key exchange.
+Generate key pair for X25519 key exchange (VLESS, REALITY).
 
 Random: {{.Exec}} x25519
 

proxy/dns/dns.go

@@ -65,9 +65,6 @@ func (h *Handler) Init(config *Config, dnsClient dns.Client, policyManager polic
 		h.server = config.Server.AsDestination()
 	}
 	h.nonIPQuery = config.Non_IPQuery
-	if h.nonIPQuery == "" {
-		h.nonIPQuery = "reject"
-	}
 	h.blockTypes = config.BlockTypes
 	return nil
 }

proxy/dokodemo/dokodemo.go

@@ -91,7 +91,7 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 			}
 		}
 		if dest.Port == 0 {
-			dest.Port = net.Port(common.Must2(strconv.Atoi(port)))
+			dest.Port = net.Port(common.Must2(strconv.Atoi(port)).(int))
 		}
 		if d.portMap != nil && d.portMap[port] != "" {
 			h, p, _ := net.SplitHostPort(d.portMap[port])
@@ -99,7 +99,7 @@ func (d *DokodemoDoor) Process(ctx context.Context, network net.Network, conn st
 				dest.Address = net.ParseAddress(h)
 			}
 			if len(p) > 0 {
-				dest.Port = net.Port(common.Must2(strconv.Atoi(p)))
+				dest.Port = net.Port(common.Must2(strconv.Atoi(p)).(int))
 			}
 		}
 	}

proxy/freedom/config.go

@@ -1 +1,44 @@
 package freedom
+
+var strategy = [][]byte{
+	//              name        strategy,   prefer, fallback
+	{0, 0, 0}, //   AsIs        none,       /,      /
+	{1, 0, 0}, //   UseIP       use,        both,   none
+	{1, 4, 0}, //   UseIPv4     use,        4,      none
+	{1, 6, 0}, //   UseIPv6     use,        6,      none
+	{1, 4, 6}, //   UseIPv4v6   use,        4,      6
+	{1, 6, 4}, //   UseIPv6v4   use,        6,      4
+	{2, 0, 0}, //   ForceIP     force,      both,   none
+	{2, 4, 0}, //   ForceIPv4   force,      4,      none
+	{2, 6, 0}, //   ForceIPv6   force,      6,      none
+	{2, 4, 6}, //   ForceIPv4v6 force,      4,      6
+	{2, 6, 4}, //   ForceIPv6v4 force,      6,      4
+}
+
+func (c *Config) hasStrategy() bool {
+	return strategy[c.DomainStrategy][0] != 0
+}
+
+func (c *Config) forceIP() bool {
+	return strategy[c.DomainStrategy][0] == 2
+}
+
+func (c *Config) preferIP4() bool {
+	return strategy[c.DomainStrategy][1] == 4 || strategy[c.DomainStrategy][1] == 0
+}
+
+func (c *Config) preferIP6() bool {
+	return strategy[c.DomainStrategy][1] == 6 || strategy[c.DomainStrategy][1] == 0
+}
+
+func (c *Config) hasFallback() bool {
+	return strategy[c.DomainStrategy][2] != 0
+}
+
+func (c *Config) fallbackIP4() bool {
+	return strategy[c.DomainStrategy][2] == 4
+}
+
+func (c *Config) fallbackIP6() bool {
+	return strategy[c.DomainStrategy][2] == 6
+}

proxy/freedom/config.pb.go

@@ -8,7 +8,6 @@ package freedom
 
 import (
 	protocol "github.com/xtls/xray-core/common/protocol"
-	internet "github.com/xtls/xray-core/transport/internet"
 	protoreflect "google.golang.org/protobuf/reflect/protoreflect"
 	protoimpl "google.golang.org/protobuf/runtime/protoimpl"
 	reflect "reflect"
@@ -22,6 +21,79 @@ const (
 	_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
 )
 
+type Config_DomainStrategy int32
+
+const (
+	Config_AS_IS      Config_DomainStrategy = 0
+	Config_USE_IP     Config_DomainStrategy = 1
+	Config_USE_IP4    Config_DomainStrategy = 2
+	Config_USE_IP6    Config_DomainStrategy = 3
+	Config_USE_IP46   Config_DomainStrategy = 4
+	Config_USE_IP64   Config_DomainStrategy = 5
+	Config_FORCE_IP   Config_DomainStrategy = 6
+	Config_FORCE_IP4  Config_DomainStrategy = 7
+	Config_FORCE_IP6  Config_DomainStrategy = 8
+	Config_FORCE_IP46 Config_DomainStrategy = 9
+	Config_FORCE_IP64 Config_DomainStrategy = 10
+)
+
+// Enum value maps for Config_DomainStrategy.
+var (
+	Config_DomainStrategy_name = map[int32]string{
+		0:  "AS_IS",
+		1:  "USE_IP",
+		2:  "USE_IP4",
+		3:  "USE_IP6",
+		4:  "USE_IP46",
+		5:  "USE_IP64",
+		6:  "FORCE_IP",
+		7:  "FORCE_IP4",
+		8:  "FORCE_IP6",
+		9:  "FORCE_IP46",
+		10: "FORCE_IP64",
+	}
+	Config_DomainStrategy_value = map[string]int32{
+		"AS_IS":      0,
+		"USE_IP":     1,
+		"USE_IP4":    2,
+		"USE_IP6":    3,
+		"USE_IP46":   4,
+		"USE_IP64":   5,
+		"FORCE_IP":   6,
+		"FORCE_IP4":  7,
+		"FORCE_IP6":  8,
+		"FORCE_IP46": 9,
+		"FORCE_IP64": 10,
+	}
+)
+
+func (x Config_DomainStrategy) Enum() *Config_DomainStrategy {
+	p := new(Config_DomainStrategy)
+	*p = x
+	return p
+}
+
+func (x Config_DomainStrategy) String() string {
+	return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
+}
+
+func (Config_DomainStrategy) Descriptor() protoreflect.EnumDescriptor {
+	return file_proxy_freedom_config_proto_enumTypes[0].Descriptor()
+}
+
+func (Config_DomainStrategy) Type() protoreflect.EnumType {
+	return &file_proxy_freedom_config_proto_enumTypes[0]
+}
+
+func (x Config_DomainStrategy) Number() protoreflect.EnumNumber {
+	return protoreflect.EnumNumber(x)
+}
+
+// Deprecated: Use Config_DomainStrategy.Descriptor instead.
+func (Config_DomainStrategy) EnumDescriptor() ([]byte, []int) {
+	return file_proxy_freedom_config_proto_rawDescGZIP(), []int{3, 0}
+}
+
 type DestinationOverride struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -258,12 +330,12 @@ type Config struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	DomainStrategy      internet.DomainStrategy `protobuf:"varint,1,opt,name=domain_strategy,json=domainStrategy,proto3,enum=xray.transport.internet.DomainStrategy" json:"domain_strategy,omitempty"`
+	DomainStrategy      Config_DomainStrategy `protobuf:"varint,1,opt,name=domain_strategy,json=domainStrategy,proto3,enum=xray.proxy.freedom.Config_DomainStrategy" json:"domain_strategy,omitempty"`
-	DestinationOverride *DestinationOverride    `protobuf:"bytes,3,opt,name=destination_override,json=destinationOverride,proto3" json:"destination_override,omitempty"`
+	DestinationOverride *DestinationOverride  `protobuf:"bytes,3,opt,name=destination_override,json=destinationOverride,proto3" json:"destination_override,omitempty"`
-	UserLevel           uint32                  `protobuf:"varint,4,opt,name=user_level,json=userLevel,proto3" json:"user_level,omitempty"`
+	UserLevel           uint32                `protobuf:"varint,4,opt,name=user_level,json=userLevel,proto3" json:"user_level,omitempty"`
-	Fragment            *Fragment               `protobuf:"bytes,5,opt,name=fragment,proto3" json:"fragment,omitempty"`
+	Fragment            *Fragment             `protobuf:"bytes,5,opt,name=fragment,proto3" json:"fragment,omitempty"`
-	ProxyProtocol       uint32                  `protobuf:"varint,6,opt,name=proxy_protocol,json=proxyProtocol,proto3" json:"proxy_protocol,omitempty"`
+	ProxyProtocol       uint32                `protobuf:"varint,6,opt,name=proxy_protocol,json=proxyProtocol,proto3" json:"proxy_protocol,omitempty"`
-	Noises              []*Noise                `protobuf:"bytes,7,rep,name=noises,proto3" json:"noises,omitempty"`
+	Noises              []*Noise              `protobuf:"bytes,7,rep,name=noises,proto3" json:"noises,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -296,11 +368,11 @@ func (*Config) Descriptor() ([]byte, []int) {
 	return file_proxy_freedom_config_proto_rawDescGZIP(), []int{3}
 }
 
-func (x *Config) GetDomainStrategy() internet.DomainStrategy {
+func (x *Config) GetDomainStrategy() Config_DomainStrategy {
 	if x != nil {
 		return x.DomainStrategy
 	}
-	return internet.DomainStrategy(0)
+	return Config_AS_IS
 }
 
 func (x *Config) GetDestinationOverride() *DestinationOverride {
@@ -346,72 +418,81 @@ var file_proxy_freedom_config_proto_rawDesc = []byte{
 	0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x66, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d,
 	0x1a, 0x21, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f,
 	0x6c, 0x2f, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x5f, 0x73, 0x70, 0x65, 0x63, 0x2e, 0x70, 0x72,
-	0x6f, 0x74, 0x6f, 0x1a, 0x1f, 0x74, 0x72, 0x61, 0x6e, 0x73, 0x70, 0x6f, 0x72, 0x74, 0x2f, 0x69,
+	0x6f, 0x74, 0x6f, 0x22, 0x53, 0x0a, 0x13, 0x44, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x61, 0x74, 0x69,
-	0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x2f, 0x63, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x2e, 0x70,
+	0x6f, 0x6e, 0x4f, 0x76, 0x65, 0x72, 0x72, 0x69, 0x64, 0x65, 0x12, 0x3c, 0x0a, 0x06, 0x73, 0x65,
-	0x72, 0x6f, 0x74, 0x6f, 0x22, 0x53, 0x0a, 0x13, 0x44, 0x65, 0x73, 0x74, 0x69, 0x6e, 0x61, 0x74,
+	0x72, 0x76, 0x65, 0x72, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x24, 0x2e, 0x78, 0x72, 0x61,
-	0x69, 0x6f, 0x6e, 0x4f, 0x76, 0x65, 0x72, 0x72, 0x69, 0x64, 0x65, 0x12, 0x3c, 0x0a, 0x06, 0x73,
+	0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f,
-	0x65, 0x72, 0x76, 0x65, 0x72, 0x18, 0x01, 0x20, 0x01, 0x28, 0x0b, 0x32, 0x24, 0x2e, 0x78, 0x72,
+	0x6c, 0x2e, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e, 0x74,
-	0x61, 0x79, 0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63,
+	0x52, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x22, 0x98, 0x02, 0x0a, 0x08, 0x46, 0x72, 0x61,
-	0x6f, 0x6c, 0x2e, 0x53, 0x65, 0x72, 0x76, 0x65, 0x72, 0x45, 0x6e, 0x64, 0x70, 0x6f, 0x69, 0x6e,
+	0x67, 0x6d, 0x65, 0x6e, 0x74, 0x12, 0x21, 0x0a, 0x0c, 0x70, 0x61, 0x63, 0x6b, 0x65, 0x74, 0x73,
-	0x74, 0x52, 0x06, 0x73, 0x65, 0x72, 0x76, 0x65, 0x72, 0x22, 0x98, 0x02, 0x0a, 0x08, 0x46, 0x72,
+	0x5f, 0x66, 0x72, 0x6f, 0x6d, 0x18, 0x01, 0x20, 0x01, 0x28, 0x04, 0x52, 0x0b, 0x70, 0x61, 0x63,
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-	0x79, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x46, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0x62,
+	0x49, 0x50, 0x10, 0x06, 0x12, 0x0d, 0x0a, 0x09, 0x46, 0x4f, 0x52, 0x43, 0x45, 0x5f, 0x49, 0x50,
-	0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x34, 0x10, 0x07, 0x12, 0x0d, 0x0a, 0x09, 0x46, 0x4f, 0x52, 0x43, 0x45, 0x5f, 0x49, 0x50, 0x36,
+	0x10, 0x08, 0x12, 0x0e, 0x0a, 0x0a, 0x46, 0x4f, 0x52, 0x43, 0x45, 0x5f, 0x49, 0x50, 0x34, 0x36,
+	0x10, 0x09, 0x12, 0x0e, 0x0a, 0x0a, 0x46, 0x4f, 0x52, 0x43, 0x45, 0x5f, 0x49, 0x50, 0x36, 0x34,
+	0x10, 0x0a, 0x42, 0x58, 0x0a, 0x16, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70,
+	0x72, 0x6f, 0x78, 0x79, 0x2e, 0x66, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0x50, 0x01, 0x5a, 0x27,
+	0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f,
+	0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f,
+	0x66, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0xaa, 0x02, 0x12, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x50,
+	0x72, 0x6f, 0x78, 0x79, 0x2e, 0x46, 0x72, 0x65, 0x65, 0x64, 0x6f, 0x6d, 0x62, 0x06, 0x70, 0x72,
+	0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -426,21 +507,22 @@ func file_proxy_freedom_config_proto_rawDescGZIP() []byte {
 	return file_proxy_freedom_config_proto_rawDescData
 }
 
+var file_proxy_freedom_config_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
 var file_proxy_freedom_config_proto_msgTypes = make([]protoimpl.MessageInfo, 4)
 var file_proxy_freedom_config_proto_goTypes = []any{
-	(*DestinationOverride)(nil),     // 0: xray.proxy.freedom.DestinationOverride
+	(Config_DomainStrategy)(0),      // 0: xray.proxy.freedom.Config.DomainStrategy
-	(*Fragment)(nil),                // 1: xray.proxy.freedom.Fragment
+	(*DestinationOverride)(nil),     // 1: xray.proxy.freedom.DestinationOverride
-	(*Noise)(nil),                   // 2: xray.proxy.freedom.Noise
+	(*Fragment)(nil),                // 2: xray.proxy.freedom.Fragment
-	(*Config)(nil),                  // 3: xray.proxy.freedom.Config
+	(*Noise)(nil),                   // 3: xray.proxy.freedom.Noise
-	(*protocol.ServerEndpoint)(nil), // 4: xray.common.protocol.ServerEndpoint
+	(*Config)(nil),                  // 4: xray.proxy.freedom.Config
-	(internet.DomainStrategy)(0),    // 5: xray.transport.internet.DomainStrategy
+	(*protocol.ServerEndpoint)(nil), // 5: xray.common.protocol.ServerEndpoint
 }
 var file_proxy_freedom_config_proto_depIdxs = []int32{
-	4, // 0: xray.proxy.freedom.DestinationOverride.server:type_name -> xray.common.protocol.ServerEndpoint
+	5, // 0: xray.proxy.freedom.DestinationOverride.server:type_name -> xray.common.protocol.ServerEndpoint
-	5, // 1: xray.proxy.freedom.Config.domain_strategy:type_name -> xray.transport.internet.DomainStrategy
+	0, // 1: xray.proxy.freedom.Config.domain_strategy:type_name -> xray.proxy.freedom.Config.DomainStrategy
-	0, // 2: xray.proxy.freedom.Config.destination_override:type_name -> xray.proxy.freedom.DestinationOverride
+	1, // 2: xray.proxy.freedom.Config.destination_override:type_name -> xray.proxy.freedom.DestinationOverride
-	1, // 3: xray.proxy.freedom.Config.fragment:type_name -> xray.proxy.freedom.Fragment
+	2, // 3: xray.proxy.freedom.Config.fragment:type_name -> xray.proxy.freedom.Fragment
-	2, // 4: xray.proxy.freedom.Config.noises:type_name -> xray.proxy.freedom.Noise
+	3, // 4: xray.proxy.freedom.Config.noises:type_name -> xray.proxy.freedom.Noise
 	5, // [5:5] is the sub-list for method output_type
 	5, // [5:5] is the sub-list for method input_type
 	5, // [5:5] is the sub-list for extension type_name
@@ -458,13 +540,14 @@ func file_proxy_freedom_config_proto_init() {
 		File: protoimpl.DescBuilder{
 			GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
 			RawDescriptor: file_proxy_freedom_config_proto_rawDesc,
-			NumEnums:      0,
+			NumEnums:      1,
 			NumMessages:   4,
 			NumExtensions: 0,
 			NumServices:   0,
 		},
 		GoTypes:           file_proxy_freedom_config_proto_goTypes,
 		DependencyIndexes: file_proxy_freedom_config_proto_depIdxs,
+		EnumInfos:         file_proxy_freedom_config_proto_enumTypes,
 		MessageInfos:      file_proxy_freedom_config_proto_msgTypes,
 	}.Build()
 	File_proxy_freedom_config_proto = out.File

proxy/freedom/config.proto

@@ -7,7 +7,6 @@ option java_package = "com.xray.proxy.freedom";
 option java_multiple_files = true;
 
 import "common/protocol/server_spec.proto";
-import "transport/internet/config.proto";
 
 message DestinationOverride {
   xray.common.protocol.ServerEndpoint server = 1;
@@ -33,7 +32,20 @@ message Noise {
 }
 
 message Config {
-  xray.transport.internet.DomainStrategy domain_strategy = 1;
+  enum DomainStrategy {
+    AS_IS = 0;
+    USE_IP = 1;
+    USE_IP4 = 2;
+    USE_IP6 = 3;
+    USE_IP46 = 4;
+    USE_IP64 = 5;
+    FORCE_IP = 6;
+    FORCE_IP4 = 7;
+    FORCE_IP6 = 8;
+    FORCE_IP46 = 9;
+    FORCE_IP64 = 10;
+  }
+  DomainStrategy domain_strategy = 1;
   DestinationOverride destination_override = 3;
   uint32 user_level = 4;
   Fragment fragment = 5;

proxy/freedom/freedom.go

@@ -20,6 +20,7 @@ import (
 	"github.com/xtls/xray-core/common/task"
 	"github.com/xtls/xray-core/common/utils"
 	"github.com/xtls/xray-core/core"
+	"github.com/xtls/xray-core/features/dns"
 	"github.com/xtls/xray-core/features/policy"
 	"github.com/xtls/xray-core/features/stats"
 	"github.com/xtls/xray-core/proxy"
@@ -34,8 +35,8 @@ var useSplice bool
 func init() {
 	common.Must(common.RegisterConfig((*Config)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
 		h := new(Handler)
-		if err := core.RequireFeatures(ctx, func(pm policy.Manager) error {
+		if err := core.RequireFeatures(ctx, func(pm policy.Manager, d dns.Client) error {
-			return h.Init(config.(*Config), pm)
+			return h.Init(config.(*Config), pm, d)
 		}); err != nil {
 			return nil, err
 		}
@@ -52,13 +53,16 @@ func init() {
 // Handler handles Freedom connections.
 type Handler struct {
 	policyManager policy.Manager
+	dns           dns.Client
 	config        *Config
 }
 
 // Init initializes the Handler with necessary parameters.
-func (h *Handler) Init(config *Config, pm policy.Manager) error {
+func (h *Handler) Init(config *Config, pm policy.Manager, d dns.Client) error {
 	h.config = config
 	h.policyManager = pm
+	h.dns = d
+
 	return nil
 }
 
@@ -67,6 +71,28 @@ func (h *Handler) policy() policy.Session {
 	return p
 }
 
+func (h *Handler) resolveIP(ctx context.Context, domain string, localAddr net.Address) net.Address {
+	ips, _, err := h.dns.LookupIP(domain, dns.IPOption{
+		IPv4Enable: (localAddr == nil || localAddr.Family().IsIPv4()) && h.config.preferIP4(),
+		IPv6Enable: (localAddr == nil || localAddr.Family().IsIPv6()) && h.config.preferIP6(),
+	})
+	{ // Resolve fallback
+		if (len(ips) == 0 || err != nil) && h.config.hasFallback() && localAddr == nil {
+			ips, _, err = h.dns.LookupIP(domain, dns.IPOption{
+				IPv4Enable: h.config.fallbackIP4(),
+				IPv6Enable: h.config.fallbackIP6(),
+			})
+		}
+	}
+	if err != nil {
+		errors.LogInfoInner(ctx, err, "failed to get IP address for domain ", domain)
+	}
+	if len(ips) == 0 {
+		return nil
+	}
+	return net.IPAddress(ips[dice.Roll(len(ips))])
+}
+
 func isValidAddress(addr *net.IPOrDomain) bool {
 	if addr == nil {
 		return false
@@ -88,12 +114,6 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 	inbound := session.InboundFromContext(ctx)
 
 	destination := ob.Target
-	origTargetAddr := ob.OriginalTarget.Address
-	if origTargetAddr == nil {
-		origTargetAddr = ob.Target.Address
-	}
-	dialer.SetOutboundGateway(ctx, ob)
-	outGateway := ob.Gateway
 	UDPOverride := net.UDPDestination(nil, 0)
 	if h.config.DestinationOverride != nil {
 		server := h.config.DestinationOverride.Server
@@ -113,24 +133,17 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 	var conn stat.Connection
 	err := retry.ExponentialBackoff(5, 100).On(func() error {
 		dialDest := destination
-		if h.config.DomainStrategy.HasStrategy() && dialDest.Address.Family().IsDomain() {
+		if h.config.hasStrategy() && dialDest.Address.Family().IsDomain() {
-			strategy := h.config.DomainStrategy
+			ip := h.resolveIP(ctx, dialDest.Address.Domain(), dialer.Address())
-			if destination.Network == net.Network_UDP && origTargetAddr != nil && outGateway == nil {
+			if ip != nil {
-				strategy = strategy.GetDynamicStrategy(origTargetAddr.Family())
-			}
-			ips, err := internet.LookupForIP(dialDest.Address.Domain(), strategy, outGateway)
-			if err != nil {
-				errors.LogInfoInner(ctx, err, "failed to get IP address for domain ", dialDest.Address.Domain())
-				if h.config.DomainStrategy.ForceIP() {
-					return err
-				}
-			} else {
 				dialDest = net.Destination{
 					Network: dialDest.Network,
-					Address: net.IPAddress(ips[dice.Roll(len(ips))]),
+					Address: ip,
 					Port:    dialDest.Port,
 				}
 				errors.LogInfo(ctx, "dialing to ", dialDest)
+			} else if h.config.forceIP() {
+				return dns.ErrEmptyResponse
 			}
 		}
 
@@ -190,7 +203,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 				writer = buf.NewWriter(conn)
 			}
 		} else {
-			writer = NewPacketWriter(conn, h, UDPOverride, destination)
+			writer = NewPacketWriter(conn, h, ctx, UDPOverride, destination)
 			if h.config.Noises != nil {
 				errors.LogDebug(ctx, "NOISE", h.config.Noises)
 				writer = &NoisePacketWriter{
@@ -326,7 +339,7 @@ func (r *PacketReader) ReadMultiBuffer() (buf.MultiBuffer, error) {
 }
 
 // DialDest means the dial target used in the dialer when creating conn
-func NewPacketWriter(conn net.Conn, h *Handler, UDPOverride net.Destination, DialDest net.Destination) buf.Writer {
+func NewPacketWriter(conn net.Conn, h *Handler, ctx context.Context, UDPOverride net.Destination, DialDest net.Destination) buf.Writer {
 	iConn := conn
 	statConn, ok := iConn.(*stat.CounterConnection)
 	if ok {
@@ -347,9 +360,9 @@ func NewPacketWriter(conn net.Conn, h *Handler, UDPOverride net.Destination, Dia
 			PacketConnWrapper: c,
 			Counter:           counter,
 			Handler:           h,
+			Context:           ctx,
 			UDPOverride:       UDPOverride,
-			ResolvedUDPAddr:   resolvedUDPAddr,
+			resolvedUDPAddr:   resolvedUDPAddr,
-			LocalAddr:         net.DestinationFromAddr(conn.LocalAddr()).Address,
 		}
 
 	}
@@ -360,14 +373,14 @@ type PacketWriter struct {
 	*internet.PacketConnWrapper
 	stats.Counter
 	*Handler
+	context.Context
 	UDPOverride net.Destination
 
 	// Dest of udp packets might be a domain, we will resolve them to IP
 	// But resolver will return a random one if the domain has many IPs
 	// Resulting in these packets being sent to many different IPs randomly
 	// So, cache and keep the resolve result
-	ResolvedUDPAddr *utils.TypedSyncMap[string, net.Address]
+	resolvedUDPAddr *utils.TypedSyncMap[string, net.Address]
-	LocalAddr       net.Address
 }
 
 func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
@@ -387,22 +400,20 @@ func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 				b.UDP.Port = w.UDPOverride.Port
 			}
 			if b.UDP.Address.Family().IsDomain() {
-				if ip, ok := w.ResolvedUDPAddr.Load(b.UDP.Address.Domain()); ok {
+				if ip, ok := w.resolvedUDPAddr.Load(b.UDP.Address.Domain()); ok {
 					b.UDP.Address = ip
 				} else {
 					ShouldUseSystemResolver := true
-					if w.Handler.config.DomainStrategy.HasStrategy() {
+					if w.Handler.config.hasStrategy() {
-						ips, err := internet.LookupForIP(b.UDP.Address.Domain(), w.Handler.config.DomainStrategy, w.LocalAddr)
+						ip = w.Handler.resolveIP(w.Context, b.UDP.Address.Domain(), nil)
-						if err != nil {
+						if ip != nil {
-							// drop packet if resolve failed when forceIP
-							if w.Handler.config.DomainStrategy.ForceIP() {
-								b.Release()
-								continue
-							}
-						} else {
-							ip = net.IPAddress(ips[dice.Roll(len(ips))])
 							ShouldUseSystemResolver = false
 						}
+						// drop packet if resolve failed when forceIP
+						if ip == nil && w.Handler.config.forceIP() {
+							b.Release()
+							continue
+						}
 					}
 					if ShouldUseSystemResolver {
 						udpAddr, err := net.ResolveUDPAddr("udp", b.UDP.NetAddr())
@@ -414,7 +425,7 @@ func (w *PacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 						}
 					}
 					if ip != nil {
-						b.UDP.Address, _ = w.ResolvedUDPAddr.LoadOrStore(b.UDP.Address.Domain(), ip)
+						b.UDP.Address, _ = w.resolvedUDPAddr.LoadOrStore(b.UDP.Address.Domain(), ip)
 					}
 				}
 			}
@@ -485,10 +496,7 @@ func (w *NoisePacketWriter) WriteMultiBuffer(mb buf.MultiBuffer) error {
 			if err != nil {
 				return err
 			}
-			err = w.Writer.WriteMultiBuffer(buf.MultiBuffer{buf.FromBytes(noise)})
+			w.Writer.WriteMultiBuffer(buf.MultiBuffer{buf.FromBytes(noise)})
-			if err != nil {
-				return err
-			}
 
 			if n.DelayMin != 0 || n.DelayMax != 0 {
 				time.Sleep(time.Duration(crypto.RandBetween(int64(n.DelayMin), int64(n.DelayMax))) * time.Millisecond)

proxy/proxy.go

@@ -25,6 +25,7 @@ import (
 	"github.com/xtls/xray-core/common/signal"
 	"github.com/xtls/xray-core/features/routing"
 	"github.com/xtls/xray-core/features/stats"
+	"github.com/xtls/xray-core/proxy/vless/encryption"
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/reality"
@@ -524,24 +525,40 @@ func XtlsFilterTls(buffer buf.MultiBuffer, trafficState *TrafficState, ctx conte
 	}
 }
 
-// UnwrapRawConn support unwrap stats, tls, utls, reality, proxyproto, uds-wrapper conn and get raw tcp/uds conn from it
+// UnwrapRawConn support unwrap encryption, stats, tls, utls, reality, proxyproto, uds-wrapper conn and get raw tcp/uds conn from it
 func UnwrapRawConn(conn net.Conn) (net.Conn, stats.Counter, stats.Counter) {
 	var readCounter, writerCounter stats.Counter
 	if conn != nil {
-		statConn, ok := conn.(*stat.CounterConnection)
+		isEncryption := false
-		if ok {
+		if clientConn, ok := conn.(*encryption.ClientConn); ok {
+			conn = clientConn.Conn
+			isEncryption = true
+		}
+		if serverConn, ok := conn.(*encryption.ServerConn); ok {
+			conn = serverConn.Conn
+			isEncryption = true
+		}
+		if xorConn, ok := conn.(*encryption.XorConn); ok {
+			if !xorConn.Divide {
+				return xorConn, nil, nil // full-random xorConn should not be penetrated
+			}
+			conn = xorConn.Conn
+		}
+		if statConn, ok := conn.(*stat.CounterConnection); ok {
 			conn = statConn.Connection
 			readCounter = statConn.ReadCounter
 			writerCounter = statConn.WriteCounter
 		}
-		if xc, ok := conn.(*tls.Conn); ok {
+		if !isEncryption { // avoids double penetration
-			conn = xc.NetConn()
+			if xc, ok := conn.(*tls.Conn); ok {
-		} else if utlsConn, ok := conn.(*tls.UConn); ok {
+				conn = xc.NetConn()
-			conn = utlsConn.NetConn()
+			} else if utlsConn, ok := conn.(*tls.UConn); ok {
-		} else if realityConn, ok := conn.(*reality.Conn); ok {
+				conn = utlsConn.NetConn()
-			conn = realityConn.NetConn()
+			} else if realityConn, ok := conn.(*reality.Conn); ok {
-		} else if realityUConn, ok := conn.(*reality.UConn); ok {
+				conn = realityConn.NetConn()
-			conn = realityUConn.NetConn()
+			} else if realityUConn, ok := conn.(*reality.UConn); ok {
+				conn = realityUConn.NetConn()
+			}
 		}
 		if pc, ok := conn.(*proxyproto.Conn); ok {
 			conn = pc.Raw()
@@ -632,9 +649,20 @@ func CopyRawConnIfExist(ctx context.Context, readerConn net.Conn, writerConn net
 }
 
 func readV(ctx context.Context, reader buf.Reader, writer buf.Writer, timer signal.ActivityUpdater, readCounter stats.Counter) error {
-	errors.LogInfo(ctx, "CopyRawConn readv")
+	errors.LogInfo(ctx, "CopyRawConn (maybe) readv")
 	if err := buf.Copy(reader, writer, buf.UpdateActivity(timer), buf.AddToStatCounter(readCounter)); err != nil {
 		return errors.New("failed to process response").Base(err)
 	}
 	return nil
 }
+
+func IsRAWTransport(conn stat.Connection) bool {
+	iConn := conn
+	if statConn, ok := iConn.(*stat.CounterConnection); ok {
+		iConn = statConn.Connection
+	}
+	_, ok1 := iConn.(*proxyproto.Conn)
+	_, ok2 := iConn.(*net.TCPConn)
+	_, ok3 := iConn.(*internet.UnixConnWrapper)
+	return ok1 || ok2 || ok3
+}

proxy/shadowsocks/config.go

@@ -2,6 +2,7 @@ package shadowsocks
 
 import (
 	"bytes"
+	"crypto/aes"
 	"crypto/cipher"
 	"crypto/md5"
 	"crypto/sha1"
@@ -57,7 +58,11 @@ func (a *MemoryAccount) CheckIV(iv []byte) error {
 }
 
 func createAesGcm(key []byte) cipher.AEAD {
-	return crypto.NewAesGcm(key)
+	block, err := aes.NewCipher(key)
+	common.Must(err)
+	gcm, err := cipher.NewGCM(block)
+	common.Must(err)
+	return gcm
 }
 
 func createChaCha20Poly1305(key []byte) cipher.AEAD {

proxy/vless/account.go

@@ -18,6 +18,8 @@ func (a *Account) AsAccount() (protocol.Account, error) {
 		ID:         protocol.NewID(id),
 		Flow:       a.Flow,       // needs parser here?
 		Encryption: a.Encryption, // needs parser here?
+		XorMode:    a.XorMode,
+		Minutes:    a.Minutes,
 	}, nil
 }
 
@@ -27,8 +29,10 @@ type MemoryAccount struct {
 	ID *protocol.ID
 	// Flow of the account. May be "xtls-rprx-vision".
 	Flow string
-	// Encryption of the account. Used for client connections, and only accepts "none" for now.
+
 	Encryption string
+	XorMode    uint32
+	Minutes    uint32
 }
 
 // Equals implements protocol.Account.Equals().
@@ -45,5 +49,7 @@ func (a *MemoryAccount) ToProto() proto.Message {
 		Id:         a.ID.String(),
 		Flow:       a.Flow,
 		Encryption: a.Encryption,
+		XorMode:    a.XorMode,
+		Minutes:    a.Minutes,
 	}
 }

proxy/vless/account.pb.go

@@ -28,9 +28,10 @@ type Account struct {
 	// ID of the account, in the form of a UUID, e.g., "66ad4540-b58c-4ad2-9926-ea63445a9b57".
 	Id string `protobuf:"bytes,1,opt,name=id,proto3" json:"id,omitempty"`
 	// Flow settings. May be "xtls-rprx-vision".
-	Flow string `protobuf:"bytes,2,opt,name=flow,proto3" json:"flow,omitempty"`
+	Flow       string `protobuf:"bytes,2,opt,name=flow,proto3" json:"flow,omitempty"`
-	// Encryption settings. Only applies to client side, and only accepts "none" for now.
 	Encryption string `protobuf:"bytes,3,opt,name=encryption,proto3" json:"encryption,omitempty"`
+	XorMode    uint32 `protobuf:"varint,4,opt,name=xorMode,proto3" json:"xorMode,omitempty"`
+	Minutes    uint32 `protobuf:"varint,5,opt,name=minutes,proto3" json:"minutes,omitempty"`
 }
 
 func (x *Account) Reset() {
@@ -84,23 +85,40 @@ func (x *Account) GetEncryption() string {
 	return ""
 }
 
+func (x *Account) GetXorMode() uint32 {
+	if x != nil {
+		return x.XorMode
+	}
+	return 0
+}
+
+func (x *Account) GetMinutes() uint32 {
+	if x != nil {
+		return x.Minutes
+	}
+	return 0
+}
+
 var File_proxy_vless_account_proto protoreflect.FileDescriptor
 
 var file_proxy_vless_account_proto_rawDesc = []byte{
 	0x0a, 0x19, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2f, 0x61, 0x63,
 	0x63, 0x6f, 0x75, 0x6e, 0x74, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x12, 0x10, 0x78, 0x72, 0x61,
-	0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x22, 0x4d, 0x0a,
+	0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x22, 0x81, 0x01,
-	0x07, 0x41, 0x63, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18, 0x01,
+	0x0a, 0x07, 0x41, 0x63, 0x63, 0x6f, 0x75, 0x6e, 0x74, 0x12, 0x0e, 0x0a, 0x02, 0x69, 0x64, 0x18,
-	0x20, 0x01, 0x28, 0x09, 0x52, 0x02, 0x69, 0x64, 0x12, 0x12, 0x0a, 0x04, 0x66, 0x6c, 0x6f, 0x77,
+	0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x02, 0x69, 0x64, 0x12, 0x12, 0x0a, 0x04, 0x66, 0x6c, 0x6f,
-	0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x66, 0x6c, 0x6f, 0x77, 0x12, 0x1e, 0x0a, 0x0a,
+	0x77, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x66, 0x6c, 0x6f, 0x77, 0x12, 0x1e, 0x0a,
-	0x65, 0x6e, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09,
+	0x0a, 0x65, 0x6e, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x03, 0x20, 0x01, 0x28,
-	0x52, 0x0a, 0x65, 0x6e, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x42, 0x52, 0x0a, 0x14,
+	0x09, 0x52, 0x0a, 0x65, 0x6e, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x18, 0x0a,
-	0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76,
+	0x07, 0x78, 0x6f, 0x72, 0x4d, 0x6f, 0x64, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x07,
-	0x6c, 0x65, 0x73, 0x73, 0x50, 0x01, 0x5a, 0x25, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63,
+	0x78, 0x6f, 0x72, 0x4d, 0x6f, 0x64, 0x65, 0x12, 0x18, 0x0a, 0x07, 0x6d, 0x69, 0x6e, 0x75, 0x74,
-	0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72,
+	0x65, 0x73, 0x18, 0x05, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x07, 0x6d, 0x69, 0x6e, 0x75, 0x74, 0x65,
-	0x65, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0xaa, 0x02, 0x10,
+	0x73, 0x42, 0x52, 0x0a, 0x14, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72,
-	0x58, 0x72, 0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x56, 0x6c, 0x65, 0x73, 0x73,
+	0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x50, 0x01, 0x5a, 0x25, 0x67, 0x69, 0x74,
-	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
+	0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61,
+	0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65,
+	0x73, 0x73, 0xaa, 0x02, 0x10, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e,
+	0x56, 0x6c, 0x65, 0x73, 0x73, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

proxy/vless/account.proto

@@ -11,6 +11,8 @@ message Account {
   string id = 1;
   // Flow settings. May be "xtls-rprx-vision".
   string flow = 2;
-  // Encryption settings. Only applies to client side, and only accepts "none" for now.
+
   string encryption = 3;
+  uint32 xorMode = 4;
+  uint32 minutes = 5;
 }

proxy/vless/encoding/encoding.go

@@ -62,7 +62,7 @@ func EncodeRequestHeader(writer io.Writer, request *protocol.RequestHeader, requ
 }
 
 // DecodeRequestHeader decodes and returns (if successful) a RequestHeader from an input stream.
-func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validator vless.Validator) ([]byte, *protocol.RequestHeader, *Addons, bool, error) {
+func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validator vless.Validator) (*protocol.RequestHeader, *Addons, bool, error) {
 	buffer := buf.StackNew()
 	defer buffer.Release()
 
@@ -72,7 +72,7 @@ func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validat
 		request.Version = first.Byte(0)
 	} else {
 		if _, err := buffer.ReadFullFrom(reader, 1); err != nil {
-			return nil, nil, nil, false, errors.New("failed to read request version").Base(err)
+			return nil, nil, false, errors.New("failed to read request version").Base(err)
 		}
 		request.Version = buffer.Byte(0)
 	}
@@ -87,13 +87,13 @@ func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validat
 		} else {
 			buffer.Clear()
 			if _, err := buffer.ReadFullFrom(reader, 16); err != nil {
-				return nil, nil, nil, false, errors.New("failed to read request user id").Base(err)
+				return nil, nil, false, errors.New("failed to read request user id").Base(err)
 			}
 			copy(id[:], buffer.Bytes())
 		}
 
 		if request.User = validator.Get(id); request.User == nil {
-			return nil, nil, nil, isfb, errors.New("invalid request user id")
+			return nil, nil, isfb, errors.New("invalid request user id")
 		}
 
 		if isfb {
@@ -102,12 +102,12 @@ func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validat
 
 		requestAddons, err := DecodeHeaderAddons(&buffer, reader)
 		if err != nil {
-			return nil, nil, nil, false, errors.New("failed to decode request header addons").Base(err)
+			return nil, nil, false, errors.New("failed to decode request header addons").Base(err)
 		}
 
 		buffer.Clear()
 		if _, err := buffer.ReadFullFrom(reader, 1); err != nil {
-			return nil, nil, nil, false, errors.New("failed to read request command").Base(err)
+			return nil, nil, false, errors.New("failed to read request command").Base(err)
 		}
 
 		request.Command = protocol.RequestCommand(buffer.Byte(0))
@@ -122,11 +122,11 @@ func DecodeRequestHeader(isfb bool, first *buf.Buffer, reader io.Reader, validat
 			}
 		}
 		if request.Address == nil {
-			return nil, nil, nil, false, errors.New("invalid request address")
+			return nil, nil, false, errors.New("invalid request address")
 		}
-		return id[:], request, requestAddons, false, nil
+		return request, requestAddons, false, nil
 	default:
-		return nil, nil, nil, isfb, errors.New("invalid request version")
+		return nil, nil, isfb, errors.New("invalid request version")
 	}
 }
 
@@ -172,7 +172,7 @@ func DecodeResponseHeader(reader io.Reader, request *protocol.RequestHeader) (*A
 }
 
 // XtlsRead filter and read xtls protocol
-func XtlsRead(reader buf.Reader, writer buf.Writer, timer *signal.ActivityTimer, conn net.Conn, input *bytes.Reader, rawInput *bytes.Buffer, trafficState *proxy.TrafficState, ob *session.Outbound, isUplink bool, ctx context.Context) error {
+func XtlsRead(reader buf.Reader, writer buf.Writer, timer *signal.ActivityTimer, conn net.Conn, peerCache *[]byte, input *bytes.Reader, rawInput *bytes.Buffer, trafficState *proxy.TrafficState, ob *session.Outbound, isUplink bool, ctx context.Context) error {
 	err := func() error {
 		for {
 			if isUplink && trafficState.Inbound.UplinkReaderDirectCopy || !isUplink && trafficState.Outbound.DownlinkReaderDirectCopy {
@@ -194,15 +194,21 @@ func XtlsRead(reader buf.Reader, writer buf.Writer, timer *signal.ActivityTimer,
 			if !buffer.IsEmpty() {
 				timer.Update()
 				if isUplink && trafficState.Inbound.UplinkReaderDirectCopy || !isUplink && trafficState.Outbound.DownlinkReaderDirectCopy {
-					// XTLS Vision processes struct TLS Conn's input and rawInput
+					// XTLS Vision processes struct Encryption Conn's peerCache or TLS Conn's input and rawInput
-					if inputBuffer, err := buf.ReadFrom(input); err == nil {
+					if peerCache != nil {
-						if !inputBuffer.IsEmpty() {
+						if len(*peerCache) != 0 {
-							buffer, _ = buf.MergeMulti(buffer, inputBuffer)
+							buffer = buf.MergeBytes(buffer, *peerCache)
 						}
-					}
+					} else {
-					if rawInputBuffer, err := buf.ReadFrom(rawInput); err == nil {
+						if inputBuffer, err := buf.ReadFrom(input); err == nil {
-						if !rawInputBuffer.IsEmpty() {
+							if !inputBuffer.IsEmpty() {
-							buffer, _ = buf.MergeMulti(buffer, rawInputBuffer)
+								buffer, _ = buf.MergeMulti(buffer, inputBuffer)
+							}
+						}
+						if rawInputBuffer, err := buf.ReadFrom(rawInput); err == nil {
+							if !rawInputBuffer.IsEmpty() {
+								buffer, _ = buf.MergeMulti(buffer, rawInputBuffer)
+							}
 						}
 					}
 				}

proxy/vless/encoding/encoding_test.go

@@ -45,7 +45,7 @@ func TestRequestSerialization(t *testing.T) {
 	Validator := new(vless.MemoryValidator)
 	Validator.Add(user)
 
-	_, actualRequest, actualAddons, _, err := DecodeRequestHeader(false, nil, &buffer, Validator)
+	actualRequest, actualAddons, _, err := DecodeRequestHeader(false, nil, &buffer, Validator)
 	common.Must(err)
 
 	if r := cmp.Diff(actualRequest, expectedRequest, cmp.AllowUnexported(protocol.ID{})); r != "" {
@@ -86,7 +86,7 @@ func TestInvalidRequest(t *testing.T) {
 	Validator := new(vless.MemoryValidator)
 	Validator.Add(user)
 
-	_, _, _, _, err := DecodeRequestHeader(false, nil, &buffer, Validator)
+	_, _, _, err := DecodeRequestHeader(false, nil, &buffer, Validator)
 	if err == nil {
 		t.Error("nil error")
 	}
@@ -117,7 +117,7 @@ func TestMuxRequest(t *testing.T) {
 	Validator := new(vless.MemoryValidator)
 	Validator.Add(user)
 
-	_, actualRequest, actualAddons, _, err := DecodeRequestHeader(false, nil, &buffer, Validator)
+	actualRequest, actualAddons, _, err := DecodeRequestHeader(false, nil, &buffer, Validator)
 	common.Must(err)
 
 	if r := cmp.Diff(actualRequest, expectedRequest, cmp.AllowUnexported(protocol.ID{})); r != "" {

proxy/vless/encryption/client.go

@@ -0,0 +1,266 @@
+package encryption
+
+import (
+	"bytes"
+	"crypto/cipher"
+	"crypto/ecdh"
+	"crypto/mlkem"
+	"crypto/rand"
+	"crypto/sha3"
+	"io"
+	"net"
+	"strings"
+	"sync"
+	"time"
+
+	"github.com/xtls/xray-core/common/crypto"
+	"github.com/xtls/xray-core/common/errors"
+	"github.com/xtls/xray-core/common/protocol"
+)
+
+var ClientCipher byte
+
+func init() {
+	if protocol.HasAESGCMHardwareSupport {
+		ClientCipher = 1
+	}
+}
+
+type ClientInstance struct {
+	sync.RWMutex
+	nfsEKey *mlkem.EncapsulationKey768
+	hash11  [11]byte // no more capacity
+	xorMode uint32
+	xorPKey *ecdh.PublicKey
+	minutes time.Duration
+	expire  time.Time
+	baseKey []byte
+	ticket  []byte
+}
+
+type ClientConn struct {
+	net.Conn
+	instance  *ClientInstance
+	baseKey   []byte
+	ticket    []byte
+	random    []byte
+	aead      cipher.AEAD
+	nonce     []byte
+	peerAEAD  cipher.AEAD
+	peerNonce []byte
+	PeerCache []byte
+}
+
+func (i *ClientInstance) Init(nfsEKeyBytes, xorPKeyBytes []byte, xorMode, minutes uint32) (err error) {
+	if i.nfsEKey != nil {
+		err = errors.New("already initialized")
+		return
+	}
+	if i.nfsEKey, err = mlkem.NewEncapsulationKey768(nfsEKeyBytes); err != nil {
+		return
+	}
+	hash32 := sha3.Sum256(nfsEKeyBytes)
+	copy(i.hash11[:], hash32[:])
+	if xorMode > 0 {
+		i.xorMode = xorMode
+		if i.xorPKey, err = ecdh.X25519().NewPublicKey(xorPKeyBytes); err != nil {
+			return
+		}
+	}
+	i.minutes = time.Duration(minutes) * time.Minute
+	return
+}
+
+func (i *ClientInstance) Handshake(conn net.Conn) (*ClientConn, error) {
+	if i.nfsEKey == nil {
+		return nil, errors.New("uninitialized")
+	}
+	if i.xorMode > 0 {
+		conn, _ = NewXorConn(conn, i.xorMode, i.xorPKey, nil)
+	}
+	c := &ClientConn{Conn: conn}
+
+	if i.minutes > 0 {
+		i.RLock()
+		if time.Now().Before(i.expire) {
+			c.instance = i
+			c.baseKey = i.baseKey
+			c.ticket = i.ticket
+			i.RUnlock()
+			return c, nil
+		}
+		i.RUnlock()
+	}
+
+	pfsDKeySeed := make([]byte, 64)
+	rand.Read(pfsDKeySeed)
+	pfsDKey, _ := mlkem.NewDecapsulationKey768(pfsDKeySeed)
+	pfsEKeyBytes := pfsDKey.EncapsulationKey().Bytes()
+	nfsKey, encapsulatedNfsKey := i.nfsEKey.Encapsulate()
+	nfsAEAD := NewAEAD(ClientCipher, nfsKey, pfsEKeyBytes, encapsulatedNfsKey)
+
+	clientHello := make([]byte, 5+11+1+1184+1088+crypto.RandBetween(100, 1000))
+	EncodeHeader(clientHello, 1, 11+1+1184+1088)
+	copy(clientHello[5:], i.hash11[:])
+	clientHello[5+11] = ClientCipher
+	copy(clientHello[5+11+1:], pfsEKeyBytes)
+	copy(clientHello[5+11+1+1184:], encapsulatedNfsKey)
+	padding := clientHello[5+11+1+1184+1088:]
+	rand.Read(padding) // important
+	EncodeHeader(padding, 23, len(padding)-5)
+	nfsAEAD.Seal(padding[:5], clientHello[5:5+11+1], padding[5:len(padding)-16], padding[:5])
+
+	if _, err := c.Conn.Write(clientHello); err != nil {
+		return nil, err
+	}
+	// client can send more NFS AEAD paddings / messages if needed
+
+	_, t, l, err := ReadAndDiscardPaddings(c.Conn) // allow paddings before server hello
+	if err != nil {
+		return nil, err
+	}
+
+	if t != 1 {
+		return nil, errors.New("unexpected type ", t, ", expect server hello")
+	}
+	peerServerHello := make([]byte, 1088+21)
+	if l != len(peerServerHello) {
+		return nil, errors.New("unexpected length ", l, " for server hello")
+	}
+	if _, err := io.ReadFull(c.Conn, peerServerHello); err != nil {
+		return nil, err
+	}
+	encapsulatedPfsKey := peerServerHello[:1088]
+	c.ticket = append(i.hash11[:], peerServerHello[1088:]...)
+
+	pfsKey, err := pfsDKey.Decapsulate(encapsulatedPfsKey)
+	if err != nil {
+		return nil, err
+	}
+	c.baseKey = append(pfsKey, nfsKey...)
+
+	VLESS, _ := NewAEAD(ClientCipher, c.baseKey, encapsulatedPfsKey, encapsulatedNfsKey).Open(nil, append(i.hash11[:], ClientCipher), c.ticket[11:], pfsEKeyBytes)
+	if !bytes.Equal(VLESS, []byte("VLESS")) {
+		return nil, errors.New("invalid server").AtError()
+	}
+
+	if i.minutes > 0 {
+		i.Lock()
+		i.expire = time.Now().Add(i.minutes)
+		i.baseKey = c.baseKey
+		i.ticket = c.ticket
+		i.Unlock()
+	}
+
+	return c, nil
+}
+
+func (c *ClientConn) Write(b []byte) (int, error) {
+	if len(b) == 0 {
+		return 0, nil
+	}
+	var data []byte
+	for n := 0; n < len(b); {
+		b := b[n:]
+		if len(b) > 8192 {
+			b = b[:8192] // for avoiding another copy() in server's Read()
+		}
+		n += len(b)
+		if c.aead == nil {
+			data = make([]byte, 5+32+32+5+len(b)+16)
+			EncodeHeader(data, 0, 32+32)
+			copy(data[5:], c.ticket)
+			c.random = make([]byte, 32)
+			rand.Read(c.random)
+			copy(data[5+32:], c.random)
+			EncodeHeader(data[5+32+32:], 23, len(b)+16)
+			c.aead = NewAEAD(ClientCipher, c.baseKey, c.random, c.ticket)
+			c.nonce = make([]byte, 12)
+			c.aead.Seal(data[:5+32+32+5], c.nonce, b, data[5+32+32:5+32+32+5])
+		} else {
+			data = make([]byte, 5+len(b)+16)
+			EncodeHeader(data, 23, len(b)+16)
+			c.aead.Seal(data[:5], c.nonce, b, data[:5])
+			if bytes.Equal(c.nonce, MaxNonce) {
+				c.aead = NewAEAD(ClientCipher, c.baseKey, data[5:], data[:5])
+			}
+		}
+		IncreaseNonce(c.nonce)
+		if _, err := c.Conn.Write(data); err != nil {
+			return 0, err
+		}
+	}
+	return len(b), nil
+}
+
+func (c *ClientConn) Read(b []byte) (int, error) {
+	if len(b) == 0 {
+		return 0, nil
+	}
+	if c.peerAEAD == nil {
+		_, t, l, err := ReadAndDiscardPaddings(c.Conn) // allow paddings before random hello
+		if err != nil {
+			if c.instance != nil && strings.HasPrefix(err.Error(), "invalid header: ") { // 0-RTT's 0-RTT
+				c.instance.Lock()
+				if bytes.Equal(c.ticket, c.instance.ticket) {
+					c.instance.expire = time.Now() // expired
+				}
+				c.instance.Unlock()
+				return 0, errors.New("new handshake needed")
+			}
+			return 0, err
+		}
+		if t != 0 {
+			return 0, errors.New("unexpected type ", t, ", expect random hello")
+		}
+		peerRandomHello := make([]byte, 32)
+		if l != len(peerRandomHello) {
+			return 0, errors.New("unexpected length ", l, " for random hello")
+		}
+		if _, err := io.ReadFull(c.Conn, peerRandomHello); err != nil {
+			return 0, err
+		}
+		if c.random == nil {
+			return 0, errors.New("empty c.random")
+		}
+		c.peerAEAD = NewAEAD(ClientCipher, c.baseKey, peerRandomHello, c.random)
+		c.peerNonce = make([]byte, 12)
+	}
+	if len(c.PeerCache) != 0 {
+		n := copy(b, c.PeerCache)
+		c.PeerCache = c.PeerCache[n:]
+		return n, nil
+	}
+	h, t, l, err := ReadAndDecodeHeader(c.Conn) // l: 17~17000
+	if err != nil {
+		return 0, err
+	}
+	if t != 23 {
+		return 0, errors.New("unexpected type ", t, ", expect encrypted data")
+	}
+	peerData := make([]byte, l)
+	if _, err := io.ReadFull(c.Conn, peerData); err != nil {
+		return 0, err
+	}
+	dst := peerData[:l-16]
+	if len(dst) <= len(b) {
+		dst = b[:len(dst)] // avoids another copy()
+	}
+	var peerAEAD cipher.AEAD
+	if bytes.Equal(c.peerNonce, MaxNonce) {
+		peerAEAD = NewAEAD(ClientCipher, c.baseKey, peerData, h)
+	}
+	_, err = c.peerAEAD.Open(dst[:0], c.peerNonce, peerData, h)
+	if peerAEAD != nil {
+		c.peerAEAD = peerAEAD
+	}
+	IncreaseNonce(c.peerNonce)
+	if err != nil {
+		return 0, err
+	}
+	if len(dst) > len(b) {
+		c.PeerCache = dst[copy(b, dst):]
+		dst = b // for len(dst)
+	}
+	return len(dst), nil
+}

proxy/vless/encryption/common.go

@@ -0,0 +1,93 @@
+package encryption
+
+import (
+	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/hkdf"
+	"crypto/sha3"
+	"fmt"
+	"io"
+	"net"
+
+	"github.com/xtls/xray-core/common/errors"
+	"golang.org/x/crypto/chacha20poly1305"
+)
+
+var MaxNonce = bytes.Repeat([]byte{255}, 12)
+
+func EncodeHeader(h []byte, t byte, l int) {
+	switch t {
+	case 1:
+		h[0] = 1
+		h[1] = 1
+		h[2] = 1
+	case 0:
+		h[0] = 0
+		h[1] = 0
+		h[2] = 0
+	case 23:
+		h[0] = 23
+		h[1] = 3
+		h[2] = 3
+	}
+	h[3] = byte(l >> 8)
+	h[4] = byte(l)
+}
+
+func DecodeHeader(h []byte) (t byte, l int, err error) {
+	l = int(h[3])<<8 | int(h[4])
+	if h[0] == 23 && h[1] == 3 && h[2] == 3 {
+		t = 23
+	} else if h[0] == 0 && h[1] == 0 && h[2] == 0 {
+		t = 0
+	} else if h[0] == 1 && h[1] == 1 && h[2] == 1 {
+		t = 1
+	} else {
+		l = 0
+	}
+	if l < 17 || l > 17000 { // TODO: TLSv1.3 max length
+		err = errors.New("invalid header: ", fmt.Sprintf("%v", h[:5])) // DO NOT CHANGE: relied by client's Read()
+	}
+	return
+}
+
+func ReadAndDecodeHeader(conn net.Conn) (h []byte, t byte, l int, err error) {
+	h = make([]byte, 5)
+	if _, err = io.ReadFull(conn, h); err != nil {
+		return
+	}
+	t, l, err = DecodeHeader(h)
+	return
+}
+
+func ReadAndDiscardPaddings(conn net.Conn) (h []byte, t byte, l int, err error) {
+	for {
+		if h, t, l, err = ReadAndDecodeHeader(conn); err != nil || t != 23 {
+			return
+		}
+		if _, err = io.ReadFull(conn, make([]byte, l)); err != nil {
+			return
+		}
+	}
+}
+
+func NewAEAD(c byte, secret, salt, info []byte) (aead cipher.AEAD) {
+	key, _ := hkdf.Key(sha3.New256, secret, salt, string(info), 32)
+	if c&1 == 1 {
+		block, _ := aes.NewCipher(key)
+		aead, _ = cipher.NewGCM(block)
+	} else {
+		aead, _ = chacha20poly1305.New(key)
+	}
+	return
+}
+
+func IncreaseNonce(nonce []byte) {
+	for i := range 12 {
+		nonce[11-i]++
+		if nonce[11-i] != 0 {
+			break
+		}
+	}
+}

proxy/vless/encryption/server.go

@@ -0,0 +1,310 @@
+package encryption
+
+import (
+	"bytes"
+	"crypto/cipher"
+	"crypto/ecdh"
+	"crypto/mlkem"
+	"crypto/rand"
+	"crypto/sha3"
+	"fmt"
+	"io"
+	"net"
+	"sync"
+	"time"
+
+	"github.com/xtls/xray-core/common/crypto"
+	"github.com/xtls/xray-core/common/errors"
+)
+
+type ServerSession struct {
+	expire  time.Time
+	cipher  byte
+	baseKey []byte
+	randoms sync.Map
+}
+
+type ServerInstance struct {
+	sync.RWMutex
+	nfsDKey  *mlkem.DecapsulationKey768
+	hash11   [11]byte // no more capacity
+	xorMode  uint32
+	xorSKey  *ecdh.PrivateKey
+	minutes  time.Duration
+	sessions map[[32]byte]*ServerSession
+	closed   bool
+}
+
+type ServerConn struct {
+	net.Conn
+	cipher     byte
+	baseKey    []byte
+	ticket     []byte
+	peerRandom []byte
+	peerAEAD   cipher.AEAD
+	peerNonce  []byte
+	PeerCache  []byte
+	aead       cipher.AEAD
+	nonce      []byte
+}
+
+func (i *ServerInstance) Init(nfsDKeySeed, xorSKeyBytes []byte, xorMode, minutes uint32) (err error) {
+	if i.nfsDKey != nil {
+		err = errors.New("already initialized")
+		return
+	}
+	if i.nfsDKey, err = mlkem.NewDecapsulationKey768(nfsDKeySeed); err != nil {
+		return
+	}
+	hash32 := sha3.Sum256(i.nfsDKey.EncapsulationKey().Bytes())
+	copy(i.hash11[:], hash32[:])
+	if xorMode > 0 {
+		i.xorMode = xorMode
+		if i.xorSKey, err = ecdh.X25519().NewPrivateKey(xorSKeyBytes); err != nil {
+			return
+		}
+	}
+	if minutes > 0 {
+		i.minutes = time.Duration(minutes) * time.Minute
+		i.sessions = make(map[[32]byte]*ServerSession)
+		go func() {
+			for {
+				time.Sleep(time.Minute)
+				i.Lock()
+				if i.closed {
+					i.Unlock()
+					return
+				}
+				now := time.Now()
+				for ticket, session := range i.sessions {
+					if now.After(session.expire) {
+						delete(i.sessions, ticket)
+					}
+				}
+				i.Unlock()
+			}
+		}()
+	}
+	return
+}
+
+func (i *ServerInstance) Close() (err error) {
+	i.Lock()
+	i.closed = true
+	i.Unlock()
+	return
+}
+
+func (i *ServerInstance) Handshake(conn net.Conn) (*ServerConn, error) {
+	if i.nfsDKey == nil {
+		return nil, errors.New("uninitialized")
+	}
+	if i.xorMode > 0 {
+		var err error
+		if conn, err = NewXorConn(conn, i.xorMode, nil, i.xorSKey); err != nil {
+			return nil, err
+		}
+	}
+	c := &ServerConn{Conn: conn}
+
+	_, t, l, err := ReadAndDiscardPaddings(c.Conn) // allow paddings before client/ticket hello
+	if err != nil {
+		return nil, err
+	}
+
+	if t == 0 {
+		if i.minutes == 0 {
+			return nil, errors.New("0-RTT is not allowed")
+		}
+		peerTicketHello := make([]byte, 32+32)
+		if l != len(peerTicketHello) {
+			return nil, errors.New("unexpected length ", l, " for ticket hello")
+		}
+		if _, err := io.ReadFull(c.Conn, peerTicketHello); err != nil {
+			return nil, err
+		}
+		if !bytes.Equal(peerTicketHello[:11], i.hash11[:]) {
+			return nil, errors.New("unexpected hash11: ", fmt.Sprintf("%v", peerTicketHello[:11]))
+		}
+		i.RLock()
+		s := i.sessions[[32]byte(peerTicketHello)]
+		i.RUnlock()
+		if s == nil {
+			noises := make([]byte, crypto.RandBetween(100, 1000))
+			var err error
+			for err == nil {
+				rand.Read(noises)
+				_, _, err = DecodeHeader(noises)
+			}
+			c.Conn.Write(noises) // make client do new handshake
+			return nil, errors.New("expired ticket")
+		}
+		if _, replay := s.randoms.LoadOrStore([32]byte(peerTicketHello[32:]), true); replay {
+			return nil, errors.New("replay detected")
+		}
+		c.cipher = s.cipher
+		c.baseKey = s.baseKey
+		c.ticket = peerTicketHello[:32]
+		c.peerRandom = peerTicketHello[32:]
+		return c, nil
+	}
+
+	peerClientHello := make([]byte, 11+1+1184+1088)
+	if l != len(peerClientHello) {
+		return nil, errors.New("unexpected length ", l, " for client hello")
+	}
+	if _, err := io.ReadFull(c.Conn, peerClientHello); err != nil {
+		return nil, err
+	}
+	if !bytes.Equal(peerClientHello[:11], i.hash11[:]) {
+		return nil, errors.New("unexpected hash11: ", fmt.Sprintf("%v", peerClientHello[:11]))
+	}
+	c.cipher = peerClientHello[11]
+	pfsEKeyBytes := peerClientHello[11+1 : 11+1+1184]
+	encapsulatedNfsKey := peerClientHello[11+1+1184:]
+
+	pfsEKey, err := mlkem.NewEncapsulationKey768(pfsEKeyBytes)
+	if err != nil {
+		return nil, err
+	}
+	nfsKey, err := i.nfsDKey.Decapsulate(encapsulatedNfsKey)
+	if err != nil {
+		return nil, err
+	}
+	pfsKey, encapsulatedPfsKey := pfsEKey.Encapsulate()
+	c.baseKey = append(pfsKey, nfsKey...)
+	pfsAEAD := NewAEAD(c.cipher, c.baseKey, encapsulatedPfsKey, encapsulatedNfsKey)
+	c.ticket = append(i.hash11[:], pfsAEAD.Seal(nil, peerClientHello[:11+1], []byte("VLESS"), pfsEKeyBytes)...)
+	IncreaseNonce(peerClientHello[:11+1])
+
+	serverHello := make([]byte, 5+1088+21+crypto.RandBetween(100, 1000))
+	EncodeHeader(serverHello, 1, 1088+21)
+	copy(serverHello[5:], encapsulatedPfsKey)
+	copy(serverHello[5+1088:], c.ticket[11:])
+	padding := serverHello[5+1088+21:]
+	rand.Read(padding) // important
+	EncodeHeader(padding, 23, len(padding)-5)
+	pfsAEAD.Seal(padding[:5], peerClientHello[:11+1], padding[5:len(padding)-16], padding[:5])
+
+	if _, err := c.Conn.Write(serverHello); err != nil {
+		return nil, err
+	}
+	// server can send more PFS AEAD paddings / messages if needed
+
+	if i.minutes > 0 {
+		i.Lock()
+		i.sessions[[32]byte(c.ticket)] = &ServerSession{
+			expire:  time.Now().Add(i.minutes),
+			cipher:  c.cipher,
+			baseKey: c.baseKey,
+		}
+		i.Unlock()
+	}
+
+	return c, nil
+}
+
+func (c *ServerConn) Read(b []byte) (int, error) {
+	if len(b) == 0 {
+		return 0, nil
+	}
+	if c.peerAEAD == nil {
+		if c.peerRandom == nil { // 1-RTT's 0-RTT
+			_, t, l, err := ReadAndDiscardPaddings(c.Conn) // allow paddings before ticket hello
+			if err != nil {
+				return 0, err
+			}
+			if t != 0 {
+				return 0, errors.New("unexpected type ", t, ", expect ticket hello")
+			}
+			peerTicketHello := make([]byte, 32+32)
+			if l != len(peerTicketHello) {
+				return 0, errors.New("unexpected length ", l, " for ticket hello")
+			}
+			if _, err := io.ReadFull(c.Conn, peerTicketHello); err != nil {
+				return 0, err
+			}
+			if !bytes.Equal(peerTicketHello[:32], c.ticket) {
+				return 0, errors.New("naughty boy")
+			}
+			c.peerRandom = peerTicketHello[32:]
+		}
+		c.peerAEAD = NewAEAD(c.cipher, c.baseKey, c.peerRandom, c.ticket)
+		c.peerNonce = make([]byte, 12)
+	}
+	if len(c.PeerCache) != 0 {
+		n := copy(b, c.PeerCache)
+		c.PeerCache = c.PeerCache[n:]
+		return n, nil
+	}
+	h, t, l, err := ReadAndDecodeHeader(c.Conn) // l: 17~17000
+	if err != nil {
+		return 0, err
+	}
+	if t != 23 {
+		return 0, errors.New("unexpected type ", t, ", expect encrypted data")
+	}
+	peerData := make([]byte, l)
+	if _, err := io.ReadFull(c.Conn, peerData); err != nil {
+		return 0, err
+	}
+	dst := peerData[:l-16]
+	if len(dst) <= len(b) {
+		dst = b[:len(dst)] // avoids another copy()
+	}
+	var peerAEAD cipher.AEAD
+	if bytes.Equal(c.peerNonce, MaxNonce) {
+		peerAEAD = NewAEAD(c.cipher, c.baseKey, peerData, h)
+	}
+	_, err = c.peerAEAD.Open(dst[:0], c.peerNonce, peerData, h)
+	if peerAEAD != nil {
+		c.peerAEAD = peerAEAD
+	}
+	IncreaseNonce(c.peerNonce)
+	if err != nil {
+		return 0, err
+	}
+	if len(dst) > len(b) {
+		c.PeerCache = dst[copy(b, dst):]
+		dst = b // for len(dst)
+	}
+	return len(dst), nil
+}
+
+func (c *ServerConn) Write(b []byte) (int, error) {
+	if len(b) == 0 {
+		return 0, nil
+	}
+	var data []byte
+	for n := 0; n < len(b); {
+		b := b[n:]
+		if len(b) > 8192 {
+			b = b[:8192] // for avoiding another copy() in client's Read()
+		}
+		n += len(b)
+		if c.aead == nil {
+			if c.peerRandom == nil {
+				return 0, errors.New("empty c.peerRandom")
+			}
+			data = make([]byte, 5+32+5+len(b)+16)
+			EncodeHeader(data, 0, 32)
+			rand.Read(data[5 : 5+32])
+			EncodeHeader(data[5+32:], 23, len(b)+16)
+			c.aead = NewAEAD(c.cipher, c.baseKey, data[5:5+32], c.peerRandom)
+			c.nonce = make([]byte, 12)
+			c.aead.Seal(data[:5+32+5], c.nonce, b, data[5+32:5+32+5])
+		} else {
+			data = make([]byte, 5+len(b)+16)
+			EncodeHeader(data, 23, len(b)+16)
+			c.aead.Seal(data[:5], c.nonce, b, data[:5])
+			if bytes.Equal(c.nonce, MaxNonce) {
+				c.aead = NewAEAD(c.cipher, c.baseKey, data[5:], data[:5])
+			}
+		}
+		IncreaseNonce(c.nonce)
+		if _, err := c.Conn.Write(data); err != nil {
+			return 0, err
+		}
+	}
+	return len(b), nil
+}

proxy/vless/encryption/xor.go

@@ -0,0 +1,200 @@
+package encryption
+
+import (
+	"crypto/aes"
+	"crypto/cipher"
+	"crypto/ecdh"
+	"crypto/hkdf"
+	"crypto/rand"
+	"crypto/sha3"
+	"io"
+	"net"
+
+	"github.com/xtls/xray-core/common/errors"
+)
+
+type XorConn struct {
+	net.Conn
+	Divide bool
+
+	head     []byte
+	key      []byte
+	ctr      cipher.Stream
+	peerCtr  cipher.Stream
+	isHeader bool
+	skipNext bool
+
+	out_after0 bool
+	out_header []byte
+	out_skip   int
+
+	in_after0 bool
+	in_header []byte
+	in_skip   int
+}
+
+func NewCTR(key, iv []byte, isServer bool) cipher.Stream {
+	info := "CLIENT"
+	if isServer {
+		info = "SERVER" // avoids attackers sending traffic back to the client, though the encryption layer has its own protection
+	}
+	key, _ = hkdf.Key(sha3.New256, key, iv, info, 32) // avoids using pKey directly if attackers sent the basepoint, or whaterver they like
+	block, _ := aes.NewCipher(key)
+	return cipher.NewCTR(block, iv)
+}
+
+func NewXorConn(conn net.Conn, mode uint32, pKey *ecdh.PublicKey, sKey *ecdh.PrivateKey) (*XorConn, error) {
+	if mode == 0 || (pKey == nil && sKey == nil) || (pKey != nil && sKey != nil) {
+		return nil, errors.New("invalid parameters")
+	}
+	c := &XorConn{
+		Conn:       conn,
+		Divide:     mode == 1,
+		isHeader:   true,
+		out_header: make([]byte, 0, 5), // important
+		in_header:  make([]byte, 0, 5), // important
+	}
+	if pKey != nil {
+		c.head = make([]byte, 16+32)
+		rand.Read(c.head)
+		eSKey, _ := ecdh.X25519().NewPrivateKey(c.head[16:])
+		NewCTR(pKey.Bytes(), c.head[:16], false).XORKeyStream(c.head[16:], eSKey.PublicKey().Bytes()) // make X25519 public key distinguishable from random bytes
+		c.key, _ = eSKey.ECDH(pKey)
+		c.ctr = NewCTR(c.key, c.head[:16], false)
+	}
+	if sKey != nil {
+		peerHead := make([]byte, 16+32)
+		if _, err := io.ReadFull(c.Conn, peerHead); err != nil {
+			return nil, err
+		}
+		NewCTR(sKey.PublicKey().Bytes(), peerHead[:16], false).XORKeyStream(peerHead[16:], peerHead[16:]) // we don't use buggy elligator, because we have PSK :)
+		ePKey, err := ecdh.X25519().NewPublicKey(peerHead[16:])
+		if err != nil {
+			return nil, err
+		}
+		key, err := sKey.ECDH(ePKey)
+		if err != nil {
+			return nil, err
+		}
+		c.peerCtr = NewCTR(key, peerHead[:16], false)
+		c.head = make([]byte, 16)
+		rand.Read(c.head)                 // make sure the server always replies random bytes even when received replays, though it is not important
+		c.ctr = NewCTR(key, c.head, true) // the same key links the upload & download, though the encryption layer has its own link
+	}
+	return c, nil
+	//chacha20.NewUnauthenticatedCipher()
+}
+
+func (c *XorConn) Write(b []byte) (int, error) { // whole one/two records
+	if len(b) == 0 {
+		return 0, nil
+	}
+	if !c.out_after0 {
+		t, l, _ := DecodeHeader(b)
+		if t == 23 { // single 23
+			l = 5
+		} else { // 1/0 + 23, or noises only
+			l += 10
+			if t == 0 {
+				c.out_after0 = true
+				if c.Divide {
+					l -= 5
+				}
+			}
+		}
+		c.ctr.XORKeyStream(b[:l], b[:l]) // caller MUST discard b
+		l = len(b)
+		if c.head != nil {
+			b = append(c.head, b...)
+			c.head = nil
+		}
+		if _, err := c.Conn.Write(b); err != nil {
+			return 0, err
+		}
+		return l, nil
+	}
+	if c.Divide {
+		return c.Conn.Write(b)
+	}
+	for p := b; ; { // for XTLS
+		if len(p) <= c.out_skip {
+			c.out_skip -= len(p)
+			break
+		}
+		p = p[c.out_skip:]
+		c.out_skip = 0
+		need := 5 - len(c.out_header)
+		if len(p) < need {
+			c.out_header = append(c.out_header, p...)
+			c.ctr.XORKeyStream(p, p)
+			break
+		}
+		_, c.out_skip, _ = DecodeHeader(append(c.out_header, p[:need]...))
+		c.out_header = c.out_header[:0]
+		c.ctr.XORKeyStream(p[:need], p[:need])
+		p = p[need:]
+	}
+	if _, err := c.Conn.Write(b); err != nil {
+		return 0, err
+	}
+	return len(b), nil
+}
+
+func (c *XorConn) Read(b []byte) (int, error) { // 5-bytes, data, 5-bytes...
+	if len(b) == 0 {
+		return 0, nil
+	}
+	if !c.in_after0 || !c.isHeader {
+		if c.peerCtr == nil { // for client
+			peerIv := make([]byte, 16)
+			if _, err := io.ReadFull(c.Conn, peerIv); err != nil {
+				return 0, err
+			}
+			c.peerCtr = NewCTR(c.key, peerIv, true)
+		}
+		if _, err := io.ReadFull(c.Conn, b); err != nil {
+			return 0, err
+		}
+		if c.skipNext {
+			c.skipNext = false
+			return len(b), nil
+		}
+		c.peerCtr.XORKeyStream(b, b)
+		if c.isHeader { // always 5-bytes
+			if t, _, _ := DecodeHeader(b); t == 23 {
+				c.skipNext = true
+			} else {
+				c.isHeader = false
+				if t == 0 {
+					c.in_after0 = true
+				}
+			}
+		} else {
+			c.isHeader = true
+		}
+		return len(b), nil
+	}
+	if c.Divide {
+		return c.Conn.Read(b)
+	}
+	n, err := c.Conn.Read(b)
+	for p := b[:n]; ; { // for XTLS
+		if len(p) <= c.in_skip {
+			c.in_skip -= len(p)
+			break
+		}
+		p = p[c.in_skip:]
+		c.in_skip = 0
+		need := 5 - len(c.in_header)
+		if len(p) < need {
+			c.peerCtr.XORKeyStream(p, p)
+			c.in_header = append(c.in_header, p...)
+			break
+		}
+		c.peerCtr.XORKeyStream(p[:need], p[:need])
+		_, c.in_skip, _ = DecodeHeader(append(c.in_header, p[:need]...))
+		c.in_header = c.in_header[:0]
+		p = p[need:]
+	}
+	return n, err
+}

proxy/vless/inbound/config.pb.go

@@ -111,11 +111,11 @@ type Config struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	Clients []*protocol.User `protobuf:"bytes,1,rep,name=clients,proto3" json:"clients,omitempty"`
+	Clients    []*protocol.User `protobuf:"bytes,1,rep,name=clients,proto3" json:"clients,omitempty"`
-	// Decryption settings. Only applies to server side, and only accepts "none"
+	Fallbacks  []*Fallback      `protobuf:"bytes,2,rep,name=fallbacks,proto3" json:"fallbacks,omitempty"`
-	// for now.
+	Decryption string           `protobuf:"bytes,3,opt,name=decryption,proto3" json:"decryption,omitempty"`
-	Decryption string      `protobuf:"bytes,2,opt,name=decryption,proto3" json:"decryption,omitempty"`
+	XorMode    uint32           `protobuf:"varint,4,opt,name=xorMode,proto3" json:"xorMode,omitempty"`
-	Fallbacks  []*Fallback `protobuf:"bytes,3,rep,name=fallbacks,proto3" json:"fallbacks,omitempty"`
+	Minutes    uint32           `protobuf:"varint,5,opt,name=minutes,proto3" json:"minutes,omitempty"`
 }
 
 func (x *Config) Reset() {
@@ -155,6 +155,13 @@ func (x *Config) GetClients() []*protocol.User {
 	return nil
 }
 
+func (x *Config) GetFallbacks() []*Fallback {
+	if x != nil {
+		return x.Fallbacks
+	}
+	return nil
+}
+
 func (x *Config) GetDecryption() string {
 	if x != nil {
 		return x.Decryption
@@ -162,11 +169,18 @@ func (x *Config) GetDecryption() string {
 	return ""
 }
 
-func (x *Config) GetFallbacks() []*Fallback {
+func (x *Config) GetXorMode() uint32 {
 	if x != nil {
-		return x.Fallbacks
+		return x.XorMode
 	}
-	return nil
+	return 0
+}
+
+func (x *Config) GetMinutes() uint32 {
+	if x != nil {
+		return x.Minutes
+	}
+	return 0
 }
 
 var File_proxy_vless_inbound_config_proto protoreflect.FileDescriptor
@@ -185,25 +199,28 @@ var file_proxy_vless_inbound_config_proto_rawDesc = []byte{
 	0x68, 0x12, 0x12, 0x0a, 0x04, 0x74, 0x79, 0x70, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28, 0x09, 0x52,
 	0x04, 0x74, 0x79, 0x70, 0x65, 0x12, 0x12, 0x0a, 0x04, 0x64, 0x65, 0x73, 0x74, 0x18, 0x05, 0x20,
 	0x01, 0x28, 0x09, 0x52, 0x04, 0x64, 0x65, 0x73, 0x74, 0x12, 0x12, 0x0a, 0x04, 0x78, 0x76, 0x65,
-	0x72, 0x18, 0x06, 0x20, 0x01, 0x28, 0x04, 0x52, 0x04, 0x78, 0x76, 0x65, 0x72, 0x22, 0xa0, 0x01,
+	0x72, 0x18, 0x06, 0x20, 0x01, 0x28, 0x04, 0x52, 0x04, 0x78, 0x76, 0x65, 0x72, 0x22, 0xd4, 0x01,
 	0x0a, 0x06, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x34, 0x0a, 0x07, 0x63, 0x6c, 0x69, 0x65,
 	0x6e, 0x74, 0x73, 0x18, 0x01, 0x20, 0x03, 0x28, 0x0b, 0x32, 0x1a, 0x2e, 0x78, 0x72, 0x61, 0x79,
 	0x2e, 0x63, 0x6f, 0x6d, 0x6d, 0x6f, 0x6e, 0x2e, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x63, 0x6f, 0x6c,
-	0x2e, 0x55, 0x73, 0x65, 0x72, 0x52, 0x07, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x73, 0x12, 0x1e,
+	0x2e, 0x55, 0x73, 0x65, 0x72, 0x52, 0x07, 0x63, 0x6c, 0x69, 0x65, 0x6e, 0x74, 0x73, 0x12, 0x40,
-	0x0a, 0x0a, 0x64, 0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x02, 0x20, 0x01,
+	0x0a, 0x09, 0x66, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73, 0x18, 0x02, 0x20, 0x03, 0x28,
-	0x28, 0x09, 0x52, 0x0a, 0x64, 0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x12, 0x40,
-	0x0a, 0x09, 0x66, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73, 0x18, 0x03, 0x20, 0x03, 0x28,
 	0x0b, 0x32, 0x22, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76,
 	0x6c, 0x65, 0x73, 0x73, 0x2e, 0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x2e, 0x46, 0x61, 0x6c,
 	0x6c, 0x62, 0x61, 0x63, 0x6b, 0x52, 0x09, 0x66, 0x61, 0x6c, 0x6c, 0x62, 0x61, 0x63, 0x6b, 0x73,
-	0x42, 0x6a, 0x0a, 0x1c, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79, 0x2e, 0x70, 0x72, 0x6f,
+	0x12, 0x1e, 0x0a, 0x0a, 0x64, 0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e, 0x18, 0x03,
-	0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2e, 0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64,
+	0x20, 0x01, 0x28, 0x09, 0x52, 0x0a, 0x64, 0x65, 0x63, 0x72, 0x79, 0x70, 0x74, 0x69, 0x6f, 0x6e,
-	0x50, 0x01, 0x5a, 0x2d, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x78,
+	0x12, 0x18, 0x0a, 0x07, 0x78, 0x6f, 0x72, 0x4d, 0x6f, 0x64, 0x65, 0x18, 0x04, 0x20, 0x01, 0x28,
-	0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72, 0x65, 0x2f, 0x70, 0x72,
+	0x0d, 0x52, 0x07, 0x78, 0x6f, 0x72, 0x4d, 0x6f, 0x64, 0x65, 0x12, 0x18, 0x0a, 0x07, 0x6d, 0x69,
-	0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2f, 0x69, 0x6e, 0x62, 0x6f, 0x75, 0x6e,
+	0x6e, 0x75, 0x74, 0x65, 0x73, 0x18, 0x05, 0x20, 0x01, 0x28, 0x0d, 0x52, 0x07, 0x6d, 0x69, 0x6e,
-	0x64, 0xaa, 0x02, 0x18, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x56,
+	0x75, 0x74, 0x65, 0x73, 0x42, 0x6a, 0x0a, 0x1c, 0x63, 0x6f, 0x6d, 0x2e, 0x78, 0x72, 0x61, 0x79,
-	0x6c, 0x65, 0x73, 0x73, 0x2e, 0x49, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64, 0x62, 0x06, 0x70, 0x72,
+	0x2e, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2e, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2e, 0x69, 0x6e, 0x62,
-	0x6f, 0x74, 0x6f, 0x33,
+	0x6f, 0x75, 0x6e, 0x64, 0x50, 0x01, 0x5a, 0x2d, 0x67, 0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63,
+	0x6f, 0x6d, 0x2f, 0x78, 0x74, 0x6c, 0x73, 0x2f, 0x78, 0x72, 0x61, 0x79, 0x2d, 0x63, 0x6f, 0x72,
+	0x65, 0x2f, 0x70, 0x72, 0x6f, 0x78, 0x79, 0x2f, 0x76, 0x6c, 0x65, 0x73, 0x73, 0x2f, 0x69, 0x6e,
+	0x62, 0x6f, 0x75, 0x6e, 0x64, 0xaa, 0x02, 0x18, 0x58, 0x72, 0x61, 0x79, 0x2e, 0x50, 0x72, 0x6f,
+	0x78, 0x79, 0x2e, 0x56, 0x6c, 0x65, 0x73, 0x73, 0x2e, 0x49, 0x6e, 0x62, 0x6f, 0x75, 0x6e, 0x64,
+	0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

proxy/vless/inbound/config.proto

@@ -19,8 +19,9 @@ message Fallback {
 
 message Config {
   repeated xray.common.protocol.User clients = 1;
-  // Decryption settings. Only applies to server side, and only accepts "none"
+  repeated Fallback fallbacks = 2;
-  // for now.
+
-  string decryption = 2;
+  string decryption = 3;
-  repeated Fallback fallbacks = 3;
+  uint32 xorMode = 4;
+  uint32 minutes = 5;
 }

proxy/vless/inbound/inbound.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"context"
 	gotls "crypto/tls"
+	"encoding/base64"
 	"io"
 	"reflect"
 	"strconv"
@@ -29,6 +30,7 @@ import (
 	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/proxy/vless"
 	"github.com/xtls/xray-core/proxy/vless/encoding"
+	"github.com/xtls/xray-core/proxy/vless/encryption"
 	"github.com/xtls/xray-core/transport/internet/reality"
 	"github.com/xtls/xray-core/transport/internet/stat"
 	"github.com/xtls/xray-core/transport/internet/tls"
@@ -67,6 +69,7 @@ type Handler struct {
 	policyManager         policy.Manager
 	validator             vless.Validator
 	dns                   dns.Client
+	decryption            *encryption.ServerInstance
 	fallbacks             map[string]map[string]map[string]*Fallback // or nil
 	// regexps               map[string]*regexp.Regexp       // or nil
 }
@@ -81,6 +84,15 @@ func New(ctx context.Context, config *Config, dc dns.Client, validator vless.Val
 		validator:             validator,
 	}
 
+	if s := strings.Split(config.Decryption, "."); len(s) == 2 {
+		nfsDKeySeed, _ := base64.RawURLEncoding.DecodeString(s[0])
+		xorSKeyBytes, _ := base64.RawURLEncoding.DecodeString(s[1])
+		handler.decryption = &encryption.ServerInstance{}
+		if err := handler.decryption.Init(nfsDKeySeed, xorSKeyBytes, config.XorMode, config.Minutes); err != nil {
+			return nil, errors.New("failed to use mlkem768seed").Base(err).AtError()
+		}
+	}
+
 	if config.Fallbacks != nil {
 		handler.fallbacks = make(map[string]map[string]map[string]*Fallback)
 		// handler.regexps = make(map[string]*regexp.Regexp)
@@ -159,6 +171,9 @@ func isMuxAndNotXUDP(request *protocol.RequestHeader, first *buf.Buffer) bool {
 
 // Close implements common.Closable.Close().
 func (h *Handler) Close() error {
+	if h.decryption != nil {
+		h.decryption.Close()
+	}
 	return errors.Combine(common.Close(h.validator))
 }
 
@@ -199,6 +214,14 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 		iConn = statConn.Connection
 	}
 
+	if h.decryption != nil {
+		var err error
+		connection, err = h.decryption.Handshake(connection)
+		if err != nil {
+			return errors.New("ML-KEM-768 handshake failed").Base(err).AtInfo()
+		}
+	}
+
 	sessionPolicy := h.policyManager.ForLevel(0)
 	if err := connection.SetReadDeadline(time.Now().Add(sessionPolicy.Timeouts.Handshake)); err != nil {
 		return errors.New("unable to set read deadline").Base(err).AtWarning()
@@ -217,7 +240,6 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 		Buffer: buf.MultiBuffer{first},
 	}
 
-	var userSentID []byte // not MemoryAccount.ID
 	var request *protocol.RequestHeader
 	var requestAddons *encoding.Addons
 	var err error
@@ -228,7 +250,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 	if isfb && firstLen < 18 {
 		err = errors.New("fallback directly")
 	} else {
-		userSentID, request, requestAddons, isfb, err = encoding.DecodeRequestHeader(isfb, first, reader, h.validator)
+		request, requestAddons, isfb, err = encoding.DecodeRequestHeader(isfb, first, reader, h.validator)
 	}
 
 	if err != nil {
@@ -456,7 +478,6 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 	}
 	inbound.Name = "vless"
 	inbound.User = request.User
-	inbound.VlessRoute = net.PortFromBytes(userSentID[6:8])
 
 	account := request.User.Account.(*vless.MemoryAccount)
 
@@ -464,6 +485,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 		// Flow: requestAddons.Flow,
 	}
 
+	var peerCache *[]byte
 	var input *bytes.Reader
 	var rawInput *bytes.Buffer
 	switch requestAddons.Flow {
@@ -476,6 +498,13 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 			case protocol.RequestCommandMux:
 				fallthrough // we will break Mux connections that contain TCP requests
 			case protocol.RequestCommandTCP:
+				if serverConn, ok := connection.(*encryption.ServerConn); ok {
+					peerCache = &serverConn.PeerCache
+					if xorConn, ok := serverConn.Conn.(*encryption.XorConn); (ok && !xorConn.Divide) || !proxy.IsRAWTransport(iConn) {
+						inbound.CanSpliceCopy = 3 // full-random xorConn / non-RAW transport can not use Linux Splice
+					}
+					break
+				}
 				var t reflect.Type
 				var p uintptr
 				if tlsConn, ok := iConn.(*tls.Conn); ok {
@@ -532,7 +561,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 
 	serverReader := link.Reader // .(*pipe.Reader)
 	serverWriter := link.Writer // .(*pipe.Writer)
-	trafficState := proxy.NewTrafficState(userSentID)
+	trafficState := proxy.NewTrafficState(account.ID.Bytes())
 	postRequest := func() error {
 		defer timer.SetTimeout(sessionPolicy.Timeouts.DownlinkOnly)
 
@@ -544,7 +573,7 @@ func (h *Handler) Process(ctx context.Context, network net.Network, connection s
 		if requestAddons.Flow == vless.XRV {
 			ctx1 := session.ContextWithInbound(ctx, nil) // TODO enable splice
 			clientReader = proxy.NewVisionReader(clientReader, trafficState, true, ctx1)
-			err = encoding.XtlsRead(clientReader, serverWriter, timer, connection, input, rawInput, trafficState, nil, true, ctx1)
+			err = encoding.XtlsRead(clientReader, serverWriter, timer, connection, peerCache, input, rawInput, trafficState, nil, true, ctx1)
 		} else {
 			// from clientReader.ReadMultiBuffer to serverWriter.WriteMultiBuffer
 			err = buf.Copy(clientReader, serverWriter, buf.UpdateActivity(timer))

proxy/vless/outbound/outbound.go

@@ -4,7 +4,9 @@ import (
 	"bytes"
 	"context"
 	gotls "crypto/tls"
+	"encoding/base64"
 	"reflect"
+	"strings"
 	"time"
 	"unsafe"
 
@@ -24,6 +26,7 @@ import (
 	"github.com/xtls/xray-core/proxy"
 	"github.com/xtls/xray-core/proxy/vless"
 	"github.com/xtls/xray-core/proxy/vless/encoding"
+	"github.com/xtls/xray-core/proxy/vless/encryption"
 	"github.com/xtls/xray-core/transport"
 	"github.com/xtls/xray-core/transport/internet"
 	"github.com/xtls/xray-core/transport/internet/reality"
@@ -43,6 +46,7 @@ type Handler struct {
 	serverPicker  protocol.ServerPicker
 	policyManager policy.Manager
 	cone          bool
+	encryption    *encryption.ClientInstance
 }
 
 // New creates a new VLess outbound handler.
@@ -64,6 +68,16 @@ func New(ctx context.Context, config *Config) (*Handler, error) {
 		cone:          ctx.Value("cone").(bool),
 	}
 
+	a := handler.serverPicker.PickServer().PickUser().Account.(*vless.MemoryAccount)
+	if s := strings.Split(a.Encryption, "."); len(s) == 2 {
+		nfsEKeyBytes, _ := base64.RawURLEncoding.DecodeString(s[0])
+		xorPKeyBytes, _ := base64.RawURLEncoding.DecodeString(s[1])
+		handler.encryption = &encryption.ClientInstance{}
+		if err := handler.encryption.Init(nfsEKeyBytes, xorPKeyBytes, a.XorMode, a.Minutes); err != nil {
+			return nil, errors.New("failed to use mlkem768client").Base(err).AtError()
+		}
+	}
+
 	return handler, nil
 }
 
@@ -98,6 +112,14 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 	target := ob.Target
 	errors.LogInfo(ctx, "tunneling request to ", target, " via ", rec.Destination().NetAddr())
 
+	if h.encryption != nil {
+		var err error
+		conn, err = h.encryption.Handshake(conn)
+		if err != nil {
+			return errors.New("ML-KEM-768 handshake failed").Base(err).AtInfo()
+		}
+	}
+
 	command := protocol.RequestCommandTCP
 	if target.Network == net.Network_UDP {
 		command = protocol.RequestCommandUDP
@@ -120,6 +142,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		Flow: account.Flow,
 	}
 
+	var peerCache *[]byte
 	var input *bytes.Reader
 	var rawInput *bytes.Buffer
 	allowUDP443 := false
@@ -138,6 +161,13 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		case protocol.RequestCommandMux:
 			fallthrough // let server break Mux connections that contain TCP requests
 		case protocol.RequestCommandTCP:
+			if clientConn, ok := conn.(*encryption.ClientConn); ok {
+				peerCache = &clientConn.PeerCache
+				if xorConn, ok := clientConn.Conn.(*encryption.XorConn); (ok && !xorConn.Divide) || !proxy.IsRAWTransport(iConn) {
+					ob.CanSpliceCopy = 3 // full-random xorConn / non-RAW transport can not use Linux Splice
+				}
+				break
+			}
 			var t reflect.Type
 			var p uintptr
 			if tlsConn, ok := iConn.(*tls.Conn); ok {
@@ -272,7 +302,7 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
 		}
 
 		if requestAddons.Flow == vless.XRV {
-			err = encoding.XtlsRead(serverReader, clientWriter, timer, conn, input, rawInput, trafficState, ob, false, ctx)
+			err = encoding.XtlsRead(serverReader, clientWriter, timer, conn, peerCache, input, rawInput, trafficState, ob, false, ctx)
 		} else {
 			// from serverReader.ReadMultiBuffer to clientWriter.WriteMultiBuffer
 			err = buf.Copy(serverReader, clientWriter, buf.UpdateActivity(timer))

proxy/vless/validator.go

@@ -18,12 +18,6 @@ type Validator interface {
 	GetCount() int64
 }
 
-func ProcessUUID(id [16]byte) [16]byte {
-	id[6] = 0
-	id[7] = 0
-	return id
-}
-
 // MemoryValidator stores valid VLESS users.
 type MemoryValidator struct {
 	// Considering email's usage here, map + sync.Mutex/RWMutex may have better performance.
@@ -39,7 +33,7 @@ func (v *MemoryValidator) Add(u *protocol.MemoryUser) error {
 			return errors.New("User ", u.Email, " already exists.")
 		}
 	}
-	v.users.Store(ProcessUUID(u.Account.(*MemoryAccount).ID.UUID()), u)
+	v.users.Store(u.Account.(*MemoryAccount).ID.UUID(), u)
 	return nil
 }
 
@@ -54,13 +48,13 @@ func (v *MemoryValidator) Del(e string) error {
 		return errors.New("User ", e, " not found.")
 	}
 	v.email.Delete(le)
-	v.users.Delete(ProcessUUID(u.(*protocol.MemoryUser).Account.(*MemoryAccount).ID.UUID()))
+	v.users.Delete(u.(*protocol.MemoryUser).Account.(*MemoryAccount).ID.UUID())
 	return nil
 }
 
 // Get a VLESS user with UUID, nil if user doesn't exist.
 func (v *MemoryValidator) Get(id uuid.UUID) *protocol.MemoryUser {
-	u, _ := v.users.Load(ProcessUUID(id))
+	u, _ := v.users.Load(id)
 	if u != nil {
 		return u.(*protocol.MemoryUser)
 	}

proxy/vless/vless.go

@@ -6,6 +6,5 @@
 package vless
 
 const (
-	None = "none"
+	XRV = "xtls-rprx-vision"
-	XRV  = "xtls-rprx-vision"
 )

proxy/vmess/aead/encrypt.go

@@ -2,13 +2,14 @@ package aead
 
 import (
 	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
 	"crypto/rand"
 	"encoding/binary"
 	"io"
 	"time"
 
 	"github.com/xtls/xray-core/common"
-	"github.com/xtls/xray-core/common/crypto"
 )
 
 func SealVMessAEADHeader(key [16]byte, data []byte) []byte {
@@ -33,7 +34,15 @@ func SealVMessAEADHeader(key [16]byte, data []byte) []byte {
 
 		payloadHeaderLengthAEADNonce := KDF(key[:], KDFSaltConstVMessHeaderPayloadLengthAEADIV, string(generatedAuthID[:]), string(connectionNonce))[:12]
 
-		payloadHeaderAEAD := crypto.NewAesGcm(payloadHeaderLengthAEADKey)
+		payloadHeaderLengthAEADAESBlock, err := aes.NewCipher(payloadHeaderLengthAEADKey)
+		if err != nil {
+			panic(err.Error())
+		}
+
+		payloadHeaderAEAD, err := cipher.NewGCM(payloadHeaderLengthAEADAESBlock)
+		if err != nil {
+			panic(err.Error())
+		}
 
 		payloadHeaderLengthAEADEncrypted = payloadHeaderAEAD.Seal(nil, payloadHeaderLengthAEADNonce, aeadPayloadLengthSerializedByte, generatedAuthID[:])
 	}
@@ -45,7 +54,15 @@ func SealVMessAEADHeader(key [16]byte, data []byte) []byte {
 
 		payloadHeaderAEADNonce := KDF(key[:], KDFSaltConstVMessHeaderPayloadAEADIV, string(generatedAuthID[:]), string(connectionNonce))[:12]
 
-		payloadHeaderAEAD := crypto.NewAesGcm(payloadHeaderAEADKey)
+		payloadHeaderAEADAESBlock, err := aes.NewCipher(payloadHeaderAEADKey)
+		if err != nil {
+			panic(err.Error())
+		}
+
+		payloadHeaderAEAD, err := cipher.NewGCM(payloadHeaderAEADAESBlock)
+		if err != nil {
+			panic(err.Error())
+		}
 
 		payloadHeaderAEADEncrypted = payloadHeaderAEAD.Seal(nil, payloadHeaderAEADNonce, data, generatedAuthID[:])
 	}
@@ -87,7 +104,15 @@ func OpenVMessAEADHeader(key [16]byte, authid [16]byte, data io.Reader) ([]byte,
 
 		payloadHeaderLengthAEADNonce := KDF(key[:], KDFSaltConstVMessHeaderPayloadLengthAEADIV, string(authid[:]), string(nonce[:]))[:12]
 
-		payloadHeaderLengthAEAD := crypto.NewAesGcm(payloadHeaderLengthAEADKey)
+		payloadHeaderAEADAESBlock, err := aes.NewCipher(payloadHeaderLengthAEADKey)
+		if err != nil {
+			panic(err.Error())
+		}
+
+		payloadHeaderLengthAEAD, err := cipher.NewGCM(payloadHeaderAEADAESBlock)
+		if err != nil {
+			panic(err.Error())
+		}
 
 		decryptedAEADHeaderLengthPayload, erropenAEAD := payloadHeaderLengthAEAD.Open(nil, payloadHeaderLengthAEADNonce, payloadHeaderLengthAEADEncrypted[:], authid[:])
 
@@ -120,7 +145,15 @@ func OpenVMessAEADHeader(key [16]byte, authid [16]byte, data io.Reader) ([]byte,
 			return nil, false, bytesRead, err
 		}
 
-		payloadHeaderAEAD := crypto.NewAesGcm(payloadHeaderAEADKey)
+		payloadHeaderAEADAESBlock, err := aes.NewCipher(payloadHeaderAEADKey)
+		if err != nil {
+			panic(err.Error())
+		}
+
+		payloadHeaderAEAD, err := cipher.NewGCM(payloadHeaderAEADAESBlock)
+		if err != nil {
+			panic(err.Error())
+		}
 
 		decryptedAEADHeaderPayload, erropenAEAD := payloadHeaderAEAD.Open(nil, payloadHeaderAEADNonce, payloadHeaderAEADEncrypted, authid[:])
 

proxy/vmess/encoding/client.go

@@ -3,6 +3,8 @@ package encoding
 import (
 	"bytes"
 	"context"
+	"crypto/aes"
+	"crypto/cipher"
 	"crypto/rand"
 	"crypto/sha256"
 	"encoding/binary"
@@ -180,7 +182,8 @@ func (c *ClientSession) DecodeResponseHeader(reader io.Reader) (*protocol.Respon
 	aeadResponseHeaderLengthEncryptionKey := vmessaead.KDF16(c.responseBodyKey[:], vmessaead.KDFSaltConstAEADRespHeaderLenKey)
 	aeadResponseHeaderLengthEncryptionIV := vmessaead.KDF(c.responseBodyIV[:], vmessaead.KDFSaltConstAEADRespHeaderLenIV)[:12]
 
-	aeadResponseHeaderLengthEncryptionAEAD := crypto.NewAesGcm(aeadResponseHeaderLengthEncryptionKey)
+	aeadResponseHeaderLengthEncryptionKeyAESBlock := common.Must2(aes.NewCipher(aeadResponseHeaderLengthEncryptionKey)).(cipher.Block)
+	aeadResponseHeaderLengthEncryptionAEAD := common.Must2(cipher.NewGCM(aeadResponseHeaderLengthEncryptionKeyAESBlock)).(cipher.AEAD)
 
 	var aeadEncryptedResponseHeaderLength [18]byte
 	var decryptedResponseHeaderLength int
@@ -202,7 +205,8 @@ func (c *ClientSession) DecodeResponseHeader(reader io.Reader) (*protocol.Respon
 	aeadResponseHeaderPayloadEncryptionKey := vmessaead.KDF16(c.responseBodyKey[:], vmessaead.KDFSaltConstAEADRespHeaderPayloadKey)
 	aeadResponseHeaderPayloadEncryptionIV := vmessaead.KDF(c.responseBodyIV[:], vmessaead.KDFSaltConstAEADRespHeaderPayloadIV)[:12]
 
-	aeadResponseHeaderPayloadEncryptionAEAD := crypto.NewAesGcm(aeadResponseHeaderPayloadEncryptionKey)
+	aeadResponseHeaderPayloadEncryptionKeyAESBlock := common.Must2(aes.NewCipher(aeadResponseHeaderPayloadEncryptionKey)).(cipher.Block)
+	aeadResponseHeaderPayloadEncryptionAEAD := common.Must2(cipher.NewGCM(aeadResponseHeaderPayloadEncryptionKeyAESBlock)).(cipher.AEAD)
 
 	encryptedResponseHeaderBuffer := make([]byte, decryptedResponseHeaderLength+16)
 

proxy/vmess/encoding/server.go

@@ -2,6 +2,8 @@ package encoding
 
 import (
 	"bytes"
+	"crypto/aes"
+	"crypto/cipher"
 	"crypto/sha256"
 	"encoding/binary"
 	"hash/fnv"
@@ -348,7 +350,8 @@ func (s *ServerSession) EncodeResponseHeader(header *protocol.ResponseHeader, wr
 	aeadResponseHeaderLengthEncryptionKey := vmessaead.KDF16(s.responseBodyKey[:], vmessaead.KDFSaltConstAEADRespHeaderLenKey)
 	aeadResponseHeaderLengthEncryptionIV := vmessaead.KDF(s.responseBodyIV[:], vmessaead.KDFSaltConstAEADRespHeaderLenIV)[:12]
 
-	aeadResponseHeaderLengthEncryptionAEAD := crypto.NewAesGcm(aeadResponseHeaderLengthEncryptionKey)
+	aeadResponseHeaderLengthEncryptionKeyAESBlock := common.Must2(aes.NewCipher(aeadResponseHeaderLengthEncryptionKey)).(cipher.Block)
+	aeadResponseHeaderLengthEncryptionAEAD := common.Must2(cipher.NewGCM(aeadResponseHeaderLengthEncryptionKeyAESBlock)).(cipher.AEAD)
 
 	aeadResponseHeaderLengthEncryptionBuffer := bytes.NewBuffer(nil)
 
@@ -362,7 +365,8 @@ func (s *ServerSession) EncodeResponseHeader(header *protocol.ResponseHeader, wr
 	aeadResponseHeaderPayloadEncryptionKey := vmessaead.KDF16(s.responseBodyKey[:], vmessaead.KDFSaltConstAEADRespHeaderPayloadKey)
 	aeadResponseHeaderPayloadEncryptionIV := vmessaead.KDF(s.responseBodyIV[:], vmessaead.KDFSaltConstAEADRespHeaderPayloadIV)[:12]
 
-	aeadResponseHeaderPayloadEncryptionAEAD := crypto.NewAesGcm(aeadResponseHeaderPayloadEncryptionKey)
+	aeadResponseHeaderPayloadEncryptionKeyAESBlock := common.Must2(aes.NewCipher(aeadResponseHeaderPayloadEncryptionKey)).(cipher.Block)
+	aeadResponseHeaderPayloadEncryptionAEAD := common.Must2(cipher.NewGCM(aeadResponseHeaderPayloadEncryptionKeyAESBlock)).(cipher.AEAD)
 
 	aeadEncryptedHeaderPayload := aeadResponseHeaderPayloadEncryptionAEAD.Seal(nil, aeadResponseHeaderPayloadEncryptionIV, aeadEncryptedHeaderBuffer.Bytes(), nil)
 	common.Must2(io.Copy(writer, bytes.NewReader(aeadEncryptedHeaderPayload)))

proxy/wireguard/server.go

@@ -7,7 +7,6 @@ import (
 
 	"github.com/xtls/xray-core/common"
 	"github.com/xtls/xray-core/common/buf"
-	c "github.com/xtls/xray-core/common/ctx"
 	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/log"
 	"github.com/xtls/xray-core/common/net"
@@ -34,6 +33,7 @@ type routingInfo struct {
 	ctx         context.Context
 	dispatcher  routing.Dispatcher
 	inboundTag  *session.Inbound
+	outboundTag *session.Outbound
 	contentTag  *session.Content
 }
 
@@ -78,11 +78,18 @@ func (*Server) Network() []net.Network {
 
 // Process implements proxy.Inbound.
 func (s *Server) Process(ctx context.Context, network net.Network, conn stat.Connection, dispatcher routing.Dispatcher) error {
+	inbound := session.InboundFromContext(ctx)
+	inbound.Name = "wireguard"
+	inbound.CanSpliceCopy = 3
+	outbounds := session.OutboundsFromContext(ctx)
+	ob := outbounds[len(outbounds)-1]
+
 	s.info = routingInfo{
-		ctx:        ctx,
+		ctx:         core.ToBackgroundDetachedContext(ctx),
-		dispatcher: dispatcher,
+		dispatcher:  dispatcher,
-		inboundTag: session.InboundFromContext(ctx),
+		inboundTag:  session.InboundFromContext(ctx),
-		contentTag: session.ContentFromContext(ctx),
+		outboundTag: ob,
+		contentTag:  session.ContentFromContext(ctx),
 	}
 
 	ep, err := s.bindServer.ParseEndpoint(conn.RemoteAddr().String())
@@ -127,25 +134,6 @@ func (s *Server) forwardConnection(dest net.Destination, conn net.Conn) {
 	defer conn.Close()
 
 	ctx, cancel := context.WithCancel(core.ToBackgroundDetachedContext(s.info.ctx))
-	sid := session.NewID()
-	ctx = c.ContextWithID(ctx, sid)
-	inbound := session.Inbound{} // since promiscuousModeHandler mixed-up context, we shallow copy inbound (tag) and content (configs)
-	if s.info.inboundTag != nil {
-		inbound = *s.info.inboundTag
-	}
-	inbound.Name = "wireguard"
-	inbound.CanSpliceCopy = 3
-
-	// overwrite the source to use the tun address for each sub context.
-	// Since gvisor.ForwarderRequest doesn't provide any info to associate the sub-context with the Parent context
-	// Currently we have no way to link to the original source address
-	inbound.Source = net.DestinationFromAddr(conn.RemoteAddr())
-	ctx = session.ContextWithInbound(ctx, &inbound)
-	if s.info.contentTag != nil {
-		ctx = session.ContextWithContent(ctx, s.info.contentTag)
-	}
-	ctx = session.SubContextFromMuxInbound(ctx)
-
 	plcy := s.policyManager.ForLevel(0)
 	timer := signal.CancelAfterInactivity(ctx, cancel, plcy.Timeouts.ConnectionIdle)
 
@@ -156,9 +144,25 @@ func (s *Server) forwardConnection(dest net.Destination, conn net.Conn) {
 		Reason: "",
 	})
 
+	if s.info.inboundTag != nil {
+		ctx = session.ContextWithInbound(ctx, s.info.inboundTag)
+	}
+
+	// what's this?
+	// Session information should not be shared between different connections
+	// why reuse them in server level? This will cause incorrect destoverride and unexpected routing behavior.
+	// Disable it temporarily. Maybe s.info should be removed.
+
+	//	if s.info.outboundTag != nil {
+	//		ctx = session.ContextWithOutbounds(ctx, []*session.Outbound{s.info.outboundTag})
+	//	}
+	//  if s.info.contentTag != nil {
+	//	    ctx = session.ContextWithContent(ctx, s.info.contentTag)
+	//  }
+
 	link, err := s.info.dispatcher.Dispatch(ctx, dest)
 	if err != nil {
-		errors.LogErrorInner(ctx, err, "dispatch connection")
+		errors.LogErrorInner(s.info.ctx, err, "dispatch connection")
 	}
 	defer cancel()
 
@@ -184,7 +188,7 @@ func (s *Server) forwardConnection(dest net.Destination, conn net.Conn) {
 	if err := task.Run(ctx, requestDonePost, responseDone); err != nil {
 		common.Interrupt(link.Reader)
 		common.Interrupt(link.Writer)
-		errors.LogDebugInner(ctx, err, "connection ends")
+		errors.LogDebugInner(s.info.ctx, err, "connection ends")
 		return
 	}
 }

testing/scenarios/dns_test.go

@@ -16,7 +16,6 @@ import (
 	"github.com/xtls/xray-core/proxy/freedom"
 	"github.com/xtls/xray-core/proxy/socks"
 	"github.com/xtls/xray-core/testing/servers/tcp"
-	"github.com/xtls/xray-core/transport/internet"
 	xproxy "golang.org/x/net/proxy"
 )
 
@@ -84,7 +83,7 @@ func TestResolveIP(t *testing.T) {
 			{
 				Tag: "direct",
 				ProxySettings: serial.ToTypedMessage(&freedom.Config{
-					DomainStrategy: internet.DomainStrategy_USE_IP,
+					DomainStrategy: freedom.Config_USE_IP,
 				}),
 			},
 		},

transport/internet/config.go

@@ -2,7 +2,6 @@ package internet
 
 import (
 	"github.com/xtls/xray-core/common/errors"
-	"github.com/xtls/xray-core/common/net"
 	"github.com/xtls/xray-core/common/serial"
 )
 
@@ -101,52 +100,30 @@ func (m SocketConfig_TProxyMode) IsEnabled() bool {
 	return m != SocketConfig_Off
 }
 
-func (s DomainStrategy) HasStrategy() bool {
+func (s DomainStrategy) hasStrategy() bool {
 	return strategy[s][0] != 0
 }
 
-func (s DomainStrategy) ForceIP() bool {
+func (s DomainStrategy) forceIP() bool {
 	return strategy[s][0] == 2
 }
 
-func (s DomainStrategy) PreferIP4() bool {
+func (s DomainStrategy) preferIP4() bool {
 	return strategy[s][1] == 4 || strategy[s][1] == 0
 }
 
-func (s DomainStrategy) PreferIP6() bool {
+func (s DomainStrategy) preferIP6() bool {
 	return strategy[s][1] == 6 || strategy[s][1] == 0
 }
 
-func (s DomainStrategy) HasFallback() bool {
+func (s DomainStrategy) hasFallback() bool {
 	return strategy[s][2] != 0
 }
 
-func (s DomainStrategy) FallbackIP4() bool {
+func (s DomainStrategy) fallbackIP4() bool {
 	return strategy[s][2] == 4
 }
 
-func (s DomainStrategy) FallbackIP6() bool {
+func (s DomainStrategy) fallbackIP6() bool {
 	return strategy[s][2] == 6
 }
-
-func (s DomainStrategy) GetDynamicStrategy(addrFamily net.AddressFamily) DomainStrategy {
-	if  addrFamily.IsDomain(){
-		return s
-	}
-	switch s {
-	case DomainStrategy_USE_IP:
-		if addrFamily.IsIPv4() {
-			return DomainStrategy_USE_IP46
-		} else if addrFamily.IsIPv6() {
-			return DomainStrategy_USE_IP64
-		}
-	case DomainStrategy_FORCE_IP:
-		if addrFamily.IsIPv4() {
-			return DomainStrategy_FORCE_IP46
-		} else if addrFamily.IsIPv6() {
-			return DomainStrategy_FORCE_IP64
-		}
-	default:
-	}
-	return s
-}

transport/internet/dialer.go

@@ -24,11 +24,11 @@ type Dialer interface {
 	// Dial dials a system connection to the given destination.
 	Dial(ctx context.Context, destination net.Destination) (stat.Connection, error)
 
+	// Address returns the address used by this Dialer. Maybe nil if not known.
+	Address() net.Address
+
 	// DestIpAddress returns the ip of proxy server. It is useful in case of Android client, which prepare an IP before proxy connection is established
 	DestIpAddress() net.IP
-
-	// SetOutboundGateway set outbound gateway
-	SetOutboundGateway(ctx context.Context, ob *session.Outbound)
 }
 
 // dialFunc is an interface to dial network connection to a specific destination.
@@ -85,20 +85,20 @@ var (
 	obm       outbound.Manager
 )
 
-func LookupForIP(domain string, strategy DomainStrategy, localAddr net.Address) ([]net.IP, error) {
+func lookupIP(domain string, strategy DomainStrategy, localAddr net.Address) ([]net.IP, error) {
 	if dnsClient == nil {
 		return nil, errors.New("DNS client not initialized").AtError()
 	}
 
 	ips, _, err := dnsClient.LookupIP(domain, dns.IPOption{
-		IPv4Enable: (localAddr == nil && strategy.PreferIP4()) || (localAddr != nil && localAddr.Family().IsIPv4() && (strategy.PreferIP4() || strategy.FallbackIP4())),
+		IPv4Enable: (localAddr == nil || localAddr.Family().IsIPv4()) && strategy.preferIP4(),
-		IPv6Enable: (localAddr == nil && strategy.PreferIP6()) || (localAddr != nil && localAddr.Family().IsIPv6() && (strategy.PreferIP6() || strategy.FallbackIP6())),
+		IPv6Enable: (localAddr == nil || localAddr.Family().IsIPv6()) && strategy.preferIP6(),
 	})
 	{ // Resolve fallback
-		if (len(ips) == 0 || err != nil) && strategy.HasFallback() && localAddr == nil {
+		if (len(ips) == 0 || err != nil) && strategy.hasFallback() && localAddr == nil {
 			ips, _, err = dnsClient.LookupIP(domain, dns.IPOption{
-				IPv4Enable: strategy.FallbackIP4(),
+				IPv4Enable: strategy.fallbackIP4(),
-				IPv6Enable: strategy.FallbackIP6(),
+				IPv6Enable: strategy.fallbackIP6(),
 			})
 		}
 	}
@@ -109,6 +109,13 @@ func LookupForIP(domain string, strategy DomainStrategy, localAddr net.Address)
 	return ips, err
 }
 
+func canLookupIP(dst net.Destination, sockopt *SocketConfig) bool {
+	if dst.Address.Family().IsIP() {
+		return false
+	}
+	return sockopt.DomainStrategy.hasStrategy()
+}
+
 func redirect(ctx context.Context, dst net.Destination, obt string, h outbound.Handler) net.Conn {
 	errors.LogInfo(ctx, "redirecting request "+dst.String()+" to "+obt)
 	outbounds := session.OutboundsFromContext(ctx)
@@ -228,15 +235,9 @@ func checkAddressPortStrategy(ctx context.Context, dest net.Destination, sockopt
 func DialSystem(ctx context.Context, dest net.Destination, sockopt *SocketConfig) (net.Conn, error) {
 	var src net.Address
 	outbounds := session.OutboundsFromContext(ctx)
-	var outboundName string
-	var origTargetAddr net.Address
 	if len(outbounds) > 0 {
 		ob := outbounds[len(outbounds)-1]
-		if sockopt == nil || len(sockopt.DialerProxy) == 0 {
+		src = ob.Gateway
-			src = ob.Gateway
-		}
-		outboundName = ob.Name
-		origTargetAddr = ob.OriginalTarget.Address
 	}
 	if sockopt == nil {
 		return effectiveSystemDialer.Dial(ctx, src, dest, sockopt)
@@ -247,22 +248,18 @@ func DialSystem(ctx context.Context, dest net.Destination, sockopt *SocketConfig
 		dest = *newDest
 	}
 
-	if sockopt.DomainStrategy.HasStrategy() && dest.Address.Family().IsDomain() {
+	if canLookupIP(dest, sockopt) {
-		finalStrategy := sockopt.DomainStrategy
+		ips, err := lookupIP(dest.Address.String(), sockopt.DomainStrategy, src)
-		if outboundName == "freedom" && dest.Network == net.Network_UDP && origTargetAddr != nil && src == nil {
-			finalStrategy = finalStrategy.GetDynamicStrategy(origTargetAddr.Family())
-		}
-		ips, err := LookupForIP(dest.Address.Domain(), finalStrategy, src)
 		if err != nil {
 			errors.LogErrorInner(ctx, err, "failed to resolve ip")
-			if sockopt.DomainStrategy.ForceIP() {
+			if sockopt.DomainStrategy.forceIP() {
 				return nil, err
 			}
 		} else if sockopt.HappyEyeballs == nil || sockopt.HappyEyeballs.TryDelayMs == 0 || sockopt.HappyEyeballs.MaxConcurrentTry == 0 || len(ips) < 2 || len(sockopt.DialerProxy) > 0 || dest.Network != net.Network_TCP {
 			dest.Address = net.IPAddress(ips[dice.Roll(len(ips))])
 			errors.LogInfo(ctx, "replace destination with "+dest.String())
 		} else {
-			return TcpRaceDial(ctx, src, ips, dest.Port, sockopt, dest.Address.String())
+			return TcpRaceDial(ctx, src, ips, dest.Port, sockopt)
 		}
 	}
 

transport/internet/happy_eyeballs.go

@@ -2,7 +2,6 @@ package internet
 
 import (
 	"context"
-	"github.com/xtls/xray-core/common/errors"
 	"github.com/xtls/xray-core/common/net"
 	"time"
 )
@@ -13,7 +12,7 @@ type result struct {
 	index int
 }
 
-func TcpRaceDial(ctx context.Context, src net.Address, ips []net.IP, port net.Port, sockopt *SocketConfig, domain string) (net.Conn, error) {
+func TcpRaceDial(ctx context.Context, src net.Address, ips []net.IP, port net.Port, sockopt *SocketConfig) (net.Conn, error) {
 	if len(ips) < 2 {
 		panic("at least 2 ips is required to race dial")
 	}
@@ -31,7 +30,6 @@ func TcpRaceDial(ctx context.Context, src net.Address, ips []net.IP, port net.Po
 	activeNum := uint32(0)
 	timer := time.NewTimer(0)
 	var winConn net.Conn
-	errors.LogDebug(ctx, "happy eyeballs racing dial for ", domain, " with IPs ", ips)
 	for {
 		select {
 		case r := <-resultCh:
@@ -56,7 +54,6 @@ func TcpRaceDial(ctx context.Context, src net.Address, ips []net.IP, port net.Po
 					timer.Stop()
 					if winConn == nil {
 						winConn = r.conn
-						errors.LogDebug(ctx, "happy eyeballs established connection for ", domain, " with IP ", ips[r.index])
 					} else {
 						r.conn.Close()
 					}
@@ -72,7 +69,6 @@ func TcpRaceDial(ctx context.Context, src net.Address, ips []net.IP, port net.Po
 					continue
 				}
 				if activeNum == 0 {
-					errors.LogDebugInner(ctx, r.err, "happy eyeballs no connection established for ", domain)
 					return nil, r.err
 				}
 				timer.Stop()

transport/internet/kcp/cryptreal.go

@@ -1,13 +1,15 @@
 package kcp
 
 import (
+	"crypto/aes"
 	"crypto/cipher"
 	"crypto/sha256"
 
-	"github.com/xtls/xray-core/common/crypto"
+	"github.com/xtls/xray-core/common"
 )
 
 func NewAEADAESGCMBasedOnSeed(seed string) cipher.AEAD {
 	hashedSeed := sha256.Sum256([]byte(seed))
-	return crypto.NewAesGcm(hashedSeed[:])
+	aesBlock := common.Must2(aes.NewCipher(hashedSeed[:16])).(cipher.Block)
+	return common.Must2(cipher.NewGCM(aesBlock)).(cipher.AEAD)
 }

transport/internet/reality/reality.go

@@ -3,6 +3,8 @@ package reality
 import (
 	"bytes"
 	"context"
+	"crypto/aes"
+	"crypto/cipher"
 	"crypto/ecdh"
 	"crypto/ed25519"
 	"crypto/hmac"
@@ -167,7 +169,8 @@ func UClient(c net.Conn, config *Config, ctx context.Context, dest net.Destinati
 		if _, err := hkdf.New(sha256.New, uConn.AuthKey, hello.Random[:20], []byte("REALITY")).Read(uConn.AuthKey); err != nil {
 			return nil, err
 		}
-		aead := crypto.NewAesGcm(uConn.AuthKey)
+		block, _ := aes.NewCipher(uConn.AuthKey)
+		aead, _ := cipher.NewGCM(block)
 		if config.Show {
 			fmt.Printf("REALITY localAddr: %v\tuConn.AuthKey[:16]: %v\tAEAD: %T\n", localAddr, uConn.AuthKey[:16], aead)
 		}

transport/internet/splithttp/dialer.go

@@ -297,7 +297,7 @@ func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.Me
 	if transportConfiguration.DownloadSettings != nil {
 		globalDialerAccess.Lock()
 		if streamSettings.DownloadSettings == nil {
-			streamSettings.DownloadSettings = common.Must2(internet.ToMemoryStreamConfig(transportConfiguration.DownloadSettings))
+			streamSettings.DownloadSettings = common.Must2(internet.ToMemoryStreamConfig(transportConfiguration.DownloadSettings)).(*internet.MemoryStreamConfig)
 			if streamSettings.SocketSettings != nil && streamSettings.SocketSettings.Penetrate {
 				streamSettings.DownloadSettings.SocketSettings = streamSettings.SocketSettings
 			}
@@ -489,16 +489,15 @@ func (w uploadWriter) Write(b []byte) (int, error) {
 		}
 	*/
 
-	buffer := buf.MultiBufferContainer{}
+	buffer := buf.New()
-	common.Must2(buffer.Write(b))
+	n, err := buffer.Write(b)
-
+	if err != nil {
-	var writed int
+		return 0, err
-	for _, buff := range buffer.MultiBuffer {
-		err := w.WriteMultiBuffer(buf.MultiBuffer{buff})
-		if err != nil {
-			return writed, err
-		}
-		writed += int(buff.Len())
 	}
-	return writed, nil
+
+	err = w.WriteMultiBuffer([]*buf.Buffer{buffer})
+	if err != nil {
+		return 0, err
+	}
+	return n, nil
 }

transport/internet/splithttp/splithttp_test.go

@@ -1,7 +1,6 @@
 package splithttp_test
 
 import (
-	"bytes"
 	"context"
 	"crypto/rand"
 	"fmt"
@@ -422,12 +421,18 @@ func Test_maxUpload(t *testing.T) {
 		},
 	}
 
-	uploadReceived := make([]byte, 10001)
+	var uploadSize int
 	listen, err := ListenXH(context.Background(), net.LocalHostIP, listenPort, streamSettings, func(conn stat.Connection) {
 		go func(c stat.Connection) {
 			defer c.Close()
+			var b [10240]byte
 			c.SetReadDeadline(time.Now().Add(2 * time.Second))
-			io.ReadFull(c, uploadReceived)
+			n, err := c.Read(b[:])
+			if err != nil {
+				return
+			}
+
+			uploadSize = n
 
 			common.Must2(c.Write([]byte("Response")))
 		}(conn)
@@ -436,12 +441,10 @@ func Test_maxUpload(t *testing.T) {
 	ctx := context.Background()
 
 	conn, err := Dial(ctx, net.TCPDestination(net.DomainAddress("localhost"), listenPort), streamSettings)
-	common.Must(err)
 
 	// send a slightly too large upload
-	upload := make([]byte, 10001)
+	var upload [10001]byte
-	rand.Read(upload)
+	_, err = conn.Write(upload[:])
-	_, err = conn.Write(upload)
 	common.Must(err)
 
 	var b [10240]byte
@@ -452,8 +455,8 @@ func Test_maxUpload(t *testing.T) {
 	}
 	common.Must(conn.Close())
 
-	if !bytes.Equal(upload, uploadReceived) {
+	if uploadSize > 10000 || uploadSize == 0 {
-		t.Error("incorrect upload", upload, uploadReceived)
+		t.Error("incorrect upload size: ", uploadSize)
 	}
 
 	common.Must(listen.Close())