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refine udp

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This commit is contained in:
Fangliding
2026-10-14 02:43:00 +08:00
parent 2f24328df4
commit a589bb445b
4 changed files with 65 additions and 49 deletions
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proxy/shadowsocks_2022/inbound.go
+20 -11
View File
@@ -15,6 +15,7 @@ import (
"github.com/xtls/xray-core/core"
"github.com/xtls/xray-core/features/policy"
"github.com/xtls/xray-core/features/routing"
"github.com/xtls/xray-core/transport"
"github.com/xtls/xray-core/transport/internet/stat"
)
@@ -146,6 +147,9 @@ func (i *Inbound) processTCP(ctx context.Context, conn net.Conn, dispatcher rout
}
func (i *Inbound) processUDP(ctx context.Context, conn stat.Connection, dispatcher routing.Dispatcher) error {
var sessionItem *ServerUDPSession
var link *transport.Link
reader := buf.NewPacketReader(conn)
for {
mb, err := reader.ReadMultiBuffer()
@@ -161,19 +165,24 @@ func (i *Inbound) processUDP(ctx context.Context, conn stat.Connection, dispatch
continue
}
sessionItem := i.udpCodec.GetSession(decoded.SessionID)
if sessionItem.User == nil {
sessionItem.Lock()
if link == nil {
sessionItem = i.udpCodec.GetSession(decoded.SessionID)
if sessionItem.User == nil {
sessionItem.User = i.user
sessionItem.Lock()
if sessionItem.User == nil {
sessionItem.User = i.user
}
sessionItem.Unlock()
}
sessionItem.Unlock()
}
link, err := sessionItem.EnsureLink(ctx, conn, decoded.Destination, dispatcher, i.policyManager, func(dest net.Destination, payload []byte) ([]byte, error) {
return i.udpCodec.EncodeServerPacket(decoded.SessionID, dest, payload)
})
if err != nil {
continue
var err error
link, err = sessionItem.EnsureLink(ctx, conn, decoded.Destination, dispatcher, i.policyManager, func(dest net.Destination, payload []byte) ([]byte, error) {
return i.udpCodec.EncodeServerPacket(decoded.SessionID, dest, payload)
})
if err != nil {
continue
}
} else {
sessionItem.UpdateConn(conn)
}
payloadBuf := buf.New()
proxy/shadowsocks_2022/inbound_multi.go
+15 -6
View File
@@ -23,6 +23,7 @@ import (
"github.com/xtls/xray-core/core"
"github.com/xtls/xray-core/features/policy"
"github.com/xtls/xray-core/features/routing"
"github.com/xtls/xray-core/transport"
"github.com/xtls/xray-core/transport/internet/stat"
)
@@ -272,6 +273,9 @@ func (i *MultiUserInbound) processTCP(ctx context.Context, conn net.Conn, dispat
}
func (i *MultiUserInbound) processUDP(ctx context.Context, conn stat.Connection, dispatcher routing.Dispatcher) error {
var sessionItem *ServerUDPSession
var link *transport.Link
reader := buf.NewPacketReader(conn)
for {
mb, err := reader.ReadMultiBuffer()
@@ -296,7 +300,7 @@ func (i *MultiUserInbound) processUDP(ctx context.Context, conn stat.Connection,
sessionID := binary.BigEndian.Uint64(rawHeader[:8])
packetID := binary.BigEndian.Uint64(rawHeader[8:16])
sessionItem := i.udpSessions.GetOrCreate(sessionID)
sessionItem = i.udpSessions.GetOrCreate(sessionID)
if !sessionItem.CheckPacketID(packetID) {
b.Release()
@@ -336,11 +340,16 @@ func (i *MultiUserInbound) processUDP(ctx context.Context, conn stat.Connection,
}
sessionItem.Unlock()
link, err := sessionItem.EnsureLink(ctx, conn, decoded.Destination, dispatcher, i.policyManager, func(replyDest net.Destination, payload []byte) ([]byte, error) {
return i.encodeServerUDPPacket(sessionID, userPSK, replyDest, payload)
})
if err != nil {
continue
if link == nil {
var err error
link, err = sessionItem.EnsureLink(ctx, conn, decoded.Destination, dispatcher, i.policyManager, func(replyDest net.Destination, payload []byte) ([]byte, error) {
return i.encodeServerUDPPacket(sessionID, userPSK, replyDest, payload)
})
if err != nil {
continue
}
} else {
sessionItem.UpdateConn(conn)
}
pBuf := buf.New()
proxy/shadowsocks_2022/inbound_relay.go
+23 -14
View File
@@ -18,6 +18,7 @@ import (
"github.com/xtls/xray-core/core"
"github.com/xtls/xray-core/features/policy"
"github.com/xtls/xray-core/features/routing"
"github.com/xtls/xray-core/transport"
"github.com/xtls/xray-core/transport/internet/stat"
)
@@ -203,6 +204,9 @@ func (i *RelayInbound) processTCP(ctx context.Context, conn net.Conn, dispatcher
}
func (i *RelayInbound) processUDP(ctx context.Context, conn stat.Connection, dispatcher routing.Dispatcher) error {
var sessionItem *ServerUDPSession
var link *transport.Link
reader := buf.NewPacketReader(conn)
for {
mb, err := reader.ReadMultiBuffer()
@@ -239,24 +243,29 @@ func (i *RelayInbound) processUDP(ctx context.Context, conn stat.Connection, dis
copy(data[AESBlockSize:2*AESBlockSize], packetHeader[:])
b.Advance(int32(AESBlockSize))
dest := targetDest.destination
dest.Network = net.Network_UDP
if link == nil {
dest := targetDest.destination
dest.Network = net.Network_UDP
sessionItem := i.udpSessions.GetOrCreate(sessionID)
if sessionItem.User == nil {
sessionItem.Lock()
sessionItem = i.udpSessions.GetOrCreate(sessionID)
if sessionItem.User == nil {
sessionItem.User = &protocol.MemoryUser{
Email: targetDest.email,
Level: targetDest.level,
sessionItem.Lock()
if sessionItem.User == nil {
sessionItem.User = &protocol.MemoryUser{
Email: targetDest.email,
Level: targetDest.level,
}
}
sessionItem.Unlock()
}
sessionItem.Unlock()
}
link, err := sessionItem.EnsureLink(ctx, conn, dest, dispatcher, i.policyManager, nil)
if err != nil {
b.Release()
continue
var err error
link, err = sessionItem.EnsureLink(ctx, conn, dest, dispatcher, i.policyManager, nil)
if err != nil {
b.Release()
continue
}
} else {
sessionItem.UpdateConn(conn)
}
_ = link.Writer.WriteMultiBuffer(buf.MultiBuffer{b})
proxy/shadowsocks_2022/shadowsocks_2022.go
+7 -18
View File
@@ -19,9 +19,7 @@ import (
func (s *ServerUDPSession) UpdateConn(conn stat.Connection) {
s.currentConn.Store(conn)
if s.timer != nil {
s.timer.Update()
}
s.timer.Update()
}
func (s *ServerUDPSession) WriteToClient(b []byte) error {
@@ -55,19 +53,16 @@ func (s *ServerUDPSession) EnsureLink(
policyManager policy.Manager,
responseEncoder func(dest net.Destination, payload []byte) ([]byte, error),
) (*transport.Link, error) {
s.UpdateConn(conn)
if link := s.link.Load(); link != nil {
return link, nil
}
s.Lock()
defer s.Unlock()
if link := s.link.Load(); link != nil {
s.UpdateConn(conn)
return link, nil
}
s.currentConn.Store(conn)
sessCtx, cancel := context.WithCancel(ctx)
inbound := session.InboundFromContext(sessCtx)
if inbound != nil && s.User != nil {
@@ -92,7 +87,6 @@ func (s *ServerUDPSession) EnsureLink(
return nil, err
}
s.link.Store(link)
sessionPolicy := policyManager.ForLevel(level)
s.timer = signal.CancelAfterInactivity(sessCtx, func() {
if s.manager != nil {
@@ -101,6 +95,7 @@ func (s *ServerUDPSession) EnsureLink(
s.Close()
cancel()
}, sessionPolicy.Timeouts.ConnectionIdle)
s.link.Store(link)
go handleUDPResponse(s, link, dest, responseEncoder)
return link, nil
@@ -116,19 +111,13 @@ func ResetTCPConn(conn net.Conn) {
}
func handleUDPResponse(s *ServerUDPSession, link *transport.Link, fallbackDest net.Destination, encode func(dest net.Destination, payload []byte) ([]byte, error)) {
defer func() {
if s.timer != nil {
s.timer.SetTimeout(0)
}
}()
defer s.timer.SetTimeout(0)
for {
resMb, err := link.Reader.ReadMultiBuffer()
if err != nil {
return
}
if s.timer != nil {
s.timer.Update()
}
s.timer.Update()
for i, rb := range resMb {
b := rb.Bytes()
if encode != nil {