Add source_port_range/port_range rule item

option/dns.go

@@ -102,7 +102,9 @@ type DefaultDNSRule struct {
 	SourceGeoIP     Listable[string] `json:"source_geoip,omitempty"`
 	SourceIPCIDR    Listable[string] `json:"source_ip_cidr,omitempty"`
 	SourcePort      Listable[uint16] `json:"source_port,omitempty"`
+	SourcePortRange Listable[string] `json:"source_port_range,omitempty"`
 	Port            Listable[uint16] `json:"port,omitempty"`
+	PortRange       Listable[string] `json:"port_range,omitempty"`
 	ProcessName     Listable[string] `json:"process_name,omitempty"`
 	PackageName     Listable[string] `json:"package_name,omitempty"`
 	User            Listable[string] `json:"user,omitempty"`
@@ -132,7 +134,9 @@ func (r DefaultDNSRule) Equals(other DefaultDNSRule) bool {
 		common.ComparableSliceEquals(r.SourceGeoIP, other.SourceGeoIP) &&
 		common.ComparableSliceEquals(r.SourceIPCIDR, other.SourceIPCIDR) &&
 		common.ComparableSliceEquals(r.SourcePort, other.SourcePort) &&
+		common.ComparableSliceEquals(r.SourcePortRange, other.SourcePortRange) &&
 		common.ComparableSliceEquals(r.Port, other.Port) &&
+		common.ComparableSliceEquals(r.PortRange, other.PortRange) &&
 		common.ComparableSliceEquals(r.ProcessName, other.ProcessName) &&
 		common.ComparableSliceEquals(r.UserID, other.UserID) &&
 		common.ComparableSliceEquals(r.PackageName, other.PackageName) &&

option/route.go

@@ -102,7 +102,9 @@ type DefaultRule struct {
 	SourceIPCIDR    Listable[string] `json:"source_ip_cidr,omitempty"`
 	IPCIDR          Listable[string] `json:"ip_cidr,omitempty"`
 	SourcePort      Listable[uint16] `json:"source_port,omitempty"`
+	SourcePortRange Listable[string] `json:"source_port_range,omitempty"`
 	Port            Listable[uint16] `json:"port,omitempty"`
+	PortRange       Listable[string] `json:"port_range,omitempty"`
 	ProcessName     Listable[string] `json:"process_name,omitempty"`
 	PackageName     Listable[string] `json:"package_name,omitempty"`
 	User            Listable[string] `json:"user,omitempty"`
@@ -133,7 +135,9 @@ func (r DefaultRule) Equals(other DefaultRule) bool {
 		common.ComparableSliceEquals(r.SourceIPCIDR, other.SourceIPCIDR) &&
 		common.ComparableSliceEquals(r.IPCIDR, other.IPCIDR) &&
 		common.ComparableSliceEquals(r.SourcePort, other.SourcePort) &&
+		common.ComparableSliceEquals(r.SourcePortRange, other.SourcePortRange) &&
 		common.ComparableSliceEquals(r.Port, other.Port) &&
+		common.ComparableSliceEquals(r.PortRange, other.PortRange) &&
 		common.ComparableSliceEquals(r.ProcessName, other.ProcessName) &&
 		common.ComparableSliceEquals(r.PackageName, other.PackageName) &&
 		common.ComparableSliceEquals(r.User, other.User) &&

route/rule.go

@@ -148,11 +148,27 @@ func NewDefaultRule(router adapter.Router, logger log.ContextLogger, options opt
 		rule.items = append(rule.items, item)
 		rule.allItems = append(rule.allItems, item)
 	}
+	if len(options.SourcePortRange) > 0 {
+		item, err := NewPortRangeItem(true, options.SourcePortRange)
+		if err != nil {
+			return nil, E.Cause(err, "source_port_range")
+		}
+		rule.items = append(rule.items, item)
+		rule.allItems = append(rule.allItems, item)
+	}
 	if len(options.Port) > 0 {
 		item := NewPortItem(false, options.Port)
 		rule.items = append(rule.items, item)
 		rule.allItems = append(rule.allItems, item)
 	}
+	if len(options.PortRange) > 0 {
+		item, err := NewPortRangeItem(false, options.PortRange)
+		if err != nil {
+			return nil, E.Cause(err, "port_range")
+		}
+		rule.items = append(rule.items, item)
+		rule.allItems = append(rule.allItems, item)
+	}
 	if len(options.ProcessName) > 0 {
 		item := NewProcessItem(options.ProcessName)
 		rule.items = append(rule.items, item)

route/rule_dns.go

@@ -121,11 +121,27 @@ func NewDefaultDNSRule(router adapter.Router, logger log.ContextLogger, options
 		rule.items = append(rule.items, item)
 		rule.allItems = append(rule.allItems, item)
 	}
+	if len(options.SourcePortRange) > 0 {
+		item, err := NewPortRangeItem(true, options.SourcePortRange)
+		if err != nil {
+			return nil, E.Cause(err, "source_port_range")
+		}
+		rule.items = append(rule.items, item)
+		rule.allItems = append(rule.allItems, item)
+	}
 	if len(options.Port) > 0 {
 		item := NewPortItem(false, options.Port)
 		rule.items = append(rule.items, item)
 		rule.allItems = append(rule.allItems, item)
 	}
+	if len(options.PortRange) > 0 {
+		item, err := NewPortRangeItem(false, options.PortRange)
+		if err != nil {
+			return nil, E.Cause(err, "port_range")
+		}
+		rule.items = append(rule.items, item)
+		rule.allItems = append(rule.allItems, item)
+	}
 	if len(options.ProcessName) > 0 {
 		item := NewProcessItem(options.ProcessName)
 		rule.items = append(rule.items, item)

route/rule_port_range.go

@@ -0,0 +1,87 @@
+package route
+
+import (
+	"strconv"
+	"strings"
+
+	"github.com/sagernet/sing-box/adapter"
+	E "github.com/sagernet/sing/common/exceptions"
+)
+
+var ErrBadPortRange = E.New("bad port range")
+
+var _ RuleItem = (*PortRangeItem)(nil)
+
+type PortRangeItem struct {
+	isSource      bool
+	portRanges    []string
+	portRangeList []rangeItem
+}
+
+type rangeItem struct {
+	start uint16
+	end   uint16
+}
+
+func NewPortRangeItem(isSource bool, rangeList []string) (*PortRangeItem, error) {
+	portRangeList := make([]rangeItem, 0, len(rangeList))
+	for _, portRange := range rangeList {
+		if !strings.Contains(portRange, ":") {
+			return nil, E.Extend(ErrBadPortRange, portRange)
+		}
+		subIndex := strings.Index(portRange, ":")
+		var start, end uint64
+		var err error
+		if subIndex > 0 {
+			start, err = strconv.ParseUint(portRange[:subIndex], 10, 16)
+			if err != nil {
+				return nil, E.Cause(err, E.Extend(ErrBadPortRange, portRange))
+			}
+		}
+		if subIndex == len(portRange)-1 {
+			end = 0xFF
+		} else {
+			end, err = strconv.ParseUint(portRange[subIndex+1:], 10, 16)
+			if err != nil {
+				return nil, E.Cause(err, E.Extend(ErrBadPortRange, portRange))
+			}
+		}
+		portRangeList = append(portRangeList, rangeItem{uint16(start), uint16(end)})
+	}
+	return &PortRangeItem{
+		isSource:      isSource,
+		portRanges:    rangeList,
+		portRangeList: portRangeList,
+	}, nil
+}
+
+func (r *PortRangeItem) Match(metadata *adapter.InboundContext) bool {
+	var port uint16
+	if r.isSource {
+		port = metadata.Source.Port
+	} else {
+		port = metadata.Destination.Port
+	}
+	for _, portRange := range r.portRangeList {
+		if port >= portRange.start && port <= portRange.end {
+			return true
+		}
+	}
+	return false
+}
+
+func (r *PortRangeItem) String() string {
+	var description string
+	if r.isSource {
+		description = "source_port_range="
+	} else {
+		description = "port_range="
+	}
+	pLen := len(r.portRanges)
+	if pLen == 1 {
+		description += r.portRanges[0]
+	} else {
+		description += "[" + strings.Join(r.portRanges, " ") + "]"
+	}
+	return description
+}