Support source port matching in routing config

app/router/condition.go

@@ -154,20 +154,32 @@ func (m *MultiGeoIPMatcher) Apply(ctx *Context) bool {
 }
 
 type PortMatcher struct {
-	port net.MemoryPortList
+	port     net.MemoryPortList
+	onSource bool
 }
 
-func NewPortMatcher(list *net.PortList) *PortMatcher {
+// NewPortMatcher create a new port matcher that can match source or destination port
+func NewPortMatcher(list *net.PortList, onSource bool) *PortMatcher {
 	return &PortMatcher{
-		port: net.PortListFromProto(list),
+		port:     net.PortListFromProto(list),
+		onSource: onSource,
 	}
 }
 
 func (v *PortMatcher) Apply(ctx *Context) bool {
-	if ctx.Outbound == nil || !ctx.Outbound.Target.IsValid() {
-		return false
+	var port net.Port
+	if v.onSource {
+		if ctx.Inbound == nil || !ctx.Inbound.Source.IsValid() {
+			return false
+		}
+		port = ctx.Inbound.Source.Port
+	} else {
+		if ctx.Outbound == nil || !ctx.Outbound.Target.IsValid() {
+			return false
+		}
+		port = ctx.Outbound.Target.Port
 	}
-	return v.port.Contains(ctx.Outbound.Target.Port)
+	return v.port.Contains(port)
 }
 
 type NetworkMatcher struct {

app/router/condition_test.go

@@ -266,6 +266,34 @@ func TestRoutingRule(t *testing.T) {
 		},
 		{
 			rule: &RoutingRule{
+				SourcePortList: &net.PortList{
+					Range: []*net.PortRange{
+						{From: 123, To: 123},
+						{From: 9993, To: 9999},
+					},
+				},
+			},
+			test: []ruleTest{
+				{
+					input:  withInbound(&session.Inbound{Source: net.UDPDestination(net.LocalHostIP, 123)}),
+					output: true,
+				},
+				{
+					input:  withInbound(&session.Inbound{Source: net.UDPDestination(net.LocalHostIP, 9999)}),
+					output: true,
+				},
+				{
+					input:  withInbound(&session.Inbound{Source: net.UDPDestination(net.LocalHostIP, 9994)}),
+					output: true,
+				},
+				{
+					input:  withInbound(&session.Inbound{Source: net.UDPDestination(net.LocalHostIP, 53)}),
+					output: false,
+				},
+			},
+		},
+		{
+			rule: &RoutingRule{
 				Protocol:   []string{"http"},
 				Attributes: "attrs[':path'].startswith('/test')",
 			},

app/router/config.go

@@ -83,9 +83,13 @@ func (rr *RoutingRule) BuildCondition() (Condition, error) {
 	}
 
 	if rr.PortList != nil {
-		conds.Add(NewPortMatcher(rr.PortList))
+		conds.Add(NewPortMatcher(rr.PortList, false))
 	} else if rr.PortRange != nil {
-		conds.Add(NewPortMatcher(&net.PortList{Range: []*net.PortRange{rr.PortRange}}))
+		conds.Add(NewPortMatcher(&net.PortList{Range: []*net.PortRange{rr.PortRange}}, false))
+	}
+
+	if rr.SourcePortList != nil {
+		conds.Add(NewPortMatcher(rr.SourcePortList, true))
 	}
 
 	if len(rr.Networks) > 0 {

app/router/config.pb.go

@@ -1,3 +1,9 @@
+// Code generated by protoc-gen-go. DO NOT EDIT.
+// versions:
+// 	protoc-gen-go v1.25.0
+// 	protoc        (unknown)
+// source: v2ray.com/core/app/router/config.proto
+
 package router
 
 import (
@@ -501,10 +507,12 @@ type RoutingRule struct {
 	SourceCidr []*CIDR `protobuf:"bytes,6,rep,name=source_cidr,json=sourceCidr,proto3" json:"source_cidr,omitempty"`
 	// List of GeoIPs for source IP address matching. If this entry exists, the source_cidr above will have no effect.
 	SourceGeoip []*GeoIP `protobuf:"bytes,11,rep,name=source_geoip,json=sourceGeoip,proto3" json:"source_geoip,omitempty"`
-	UserEmail   []string `protobuf:"bytes,7,rep,name=user_email,json=userEmail,proto3" json:"user_email,omitempty"`
-	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  string   `protobuf:"bytes,15,opt,name=attributes,proto3" json:"attributes,omitempty"`
+	// List of ports for source port matching.
+	SourcePortList *net.PortList `protobuf:"bytes,16,opt,name=source_port_list,json=sourcePortList,proto3" json:"source_port_list,omitempty"`
+	UserEmail      []string      `protobuf:"bytes,7,rep,name=user_email,json=userEmail,proto3" json:"user_email,omitempty"`
+	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     string        `protobuf:"bytes,15,opt,name=attributes,proto3" json:"attributes,omitempty"`
 }
 
 func (x *RoutingRule) Reset() {
@@ -627,6 +635,13 @@ func (x *RoutingRule) GetSourceGeoip() []*GeoIP {
 	return nil
 }
 
+func (x *RoutingRule) GetSourcePortList() *net.PortList {
+	if x != nil {
+		return x.SourcePortList
+	}
+	return nil
+}
+
 func (x *RoutingRule) GetUserEmail() []string {
 	if x != nil {
 		return x.UserEmail
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-	0x70, 0x70, 0x2e, 0x52, 0x6f, 0x75, 0x74, 0x65, 0x72, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f,
-	0x33,
+	0x65, 0x72, 0x50, 0x01, 0x5a, 0x06, 0x72, 0x6f, 0x75, 0x74, 0x65, 0x72, 0xaa, 0x02, 0x15, 0x56,
+	0x32, 0x52, 0x61, 0x79, 0x2e, 0x43, 0x6f, 0x72, 0x65, 0x2e, 0x41, 0x70, 0x70, 0x2e, 0x52, 0x6f,
+	0x75, 0x74, 0x65, 0x72, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (
@@ -1062,14 +1081,15 @@ var file_v2ray_com_core_app_router_config_proto_depIdxs = []int32{
 	15, // 12: v2ray.core.app.router.RoutingRule.networks:type_name -> v2ray.core.common.net.Network
 	3,  // 13: v2ray.core.app.router.RoutingRule.source_cidr:type_name -> v2ray.core.app.router.CIDR
 	4,  // 14: v2ray.core.app.router.RoutingRule.source_geoip:type_name -> v2ray.core.app.router.GeoIP
-	1,  // 15: v2ray.core.app.router.Config.domain_strategy:type_name -> v2ray.core.app.router.Config.DomainStrategy
-	8,  // 16: v2ray.core.app.router.Config.rule:type_name -> v2ray.core.app.router.RoutingRule
-	9,  // 17: v2ray.core.app.router.Config.balancing_rule:type_name -> v2ray.core.app.router.BalancingRule
-	18, // [18:18] is the sub-list for method output_type
-	18, // [18:18] is the sub-list for method input_type
-	18, // [18:18] is the sub-list for extension type_name
-	18, // [18:18] is the sub-list for extension extendee
-	0,  // [0:18] is the sub-list for field type_name
+	13, // 15: v2ray.core.app.router.RoutingRule.source_port_list:type_name -> v2ray.core.common.net.PortList
+	1,  // 16: v2ray.core.app.router.Config.domain_strategy:type_name -> v2ray.core.app.router.Config.DomainStrategy
+	8,  // 17: v2ray.core.app.router.Config.rule:type_name -> v2ray.core.app.router.RoutingRule
+	9,  // 18: v2ray.core.app.router.Config.balancing_rule:type_name -> v2ray.core.app.router.BalancingRule
+	19, // [19:19] is the sub-list for method output_type
+	19, // [19:19] is the sub-list for method input_type
+	19, // [19:19] is the sub-list for extension type_name
+	19, // [19:19] is the sub-list for extension extendee
+	0,  // [0:19] is the sub-list for field type_name
 }
 
 func init() { file_v2ray_com_core_app_router_config_proto_init() }

app/router/config.proto

@@ -9,7 +9,7 @@ option java_multiple_files = true;
 import "v2ray.com/core/common/net/port.proto";
 import "v2ray.com/core/common/net/network.proto";
 
-// Domain for routing decision. 
+// Domain for routing decision.
 message Domain {
   // Type of domain value.
   enum Type {
@@ -77,7 +77,7 @@ message RoutingRule {
     // Tag of routing balancer.
     string balancing_tag = 12;
   }
-  
+
 
   // List of domains for target domain matching.
   repeated Domain domain = 2;
@@ -85,7 +85,7 @@ message RoutingRule {
   // List of CIDRs for target IP address matching.
   // Deprecated. Use geoip below.
   repeated CIDR cidr = 3 [deprecated = true];
-  
+
   // List of GeoIPs for target IP address matching. If this entry exists, the cidr above will have no effect.
   // GeoIP fields with the same country code are supposed to contain exactly same content. They will be merged during runtime.
   // For customized GeoIPs, please leave country code empty.
@@ -110,6 +110,9 @@ message RoutingRule {
   // List of GeoIPs for source IP address matching. If this entry exists, the source_cidr above will have no effect.
   repeated GeoIP source_geoip = 11;
 
+  // List of ports for source port matching.
+  v2ray.core.common.net.PortList source_port_list = 16;
+
   repeated string user_email = 7;
   repeated string inbound_tag = 8;
   repeated string protocol = 9;

infra/conf/router.go

@@ -380,6 +380,7 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		Port       *PortList    `json:"port"`
 		Network    *NetworkList `json:"network"`
 		SourceIP   *StringList  `json:"source"`
+		SourcePort *PortList    `json:"sourcePort"`
 		User       *StringList  `json:"user"`
 		InboundTag *StringList  `json:"inboundTag"`
 		Protocols  *StringList  `json:"protocol"`
@@ -438,6 +439,10 @@ func parseFieldRule(msg json.RawMessage) (*router.RoutingRule, error) {
 		rule.SourceGeoip = geoipList
 	}
 
+	if rawFieldRule.SourcePort != nil {
+		rule.SourcePortList = rawFieldRule.SourcePort.Build()
+	}
+
 	if rawFieldRule.User != nil {
 		for _, s := range *rawFieldRule.User {
 			rule.UserEmail = append(rule.UserEmail, s)