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Chore: contexify ProxyAdapter ListenPacket

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This commit is contained in:
Dreamacro 2021-10-15 21:44:53 +08:00
parent 583b2a5ace
commit 68753b4ae1
20 changed files with 96 additions and 66 deletions
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5
.gitignore vendored
View file

@ -12,7 +12,7 @@ bin/*
# Output of the go coverage tool, specifically when used with LiteIDE
*.out
# dep
# go mod vendor
vendor
# GoLand
@ -20,3 +20,6 @@ vendor
# macOS file
.DS_Store
# test suite
test/config/cache*

18
adapter/adapter.go
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@ -36,12 +36,24 @@ func (p *Proxy) Dial(metadata *C.Metadata) (C.Conn, error) {
// DialContext implements C.ProxyAdapter
func (p *Proxy) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn, error) {
conn, err := p.ProxyAdapter.DialContext(ctx, metadata)
if err != nil {
p.alive.Store(false)
}
p.alive.Store(err == nil)
return conn, err
}
// DialUDP implements C.ProxyAdapter
func (p *Proxy) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
ctx, cancel := context.WithTimeout(context.Background(), C.DefaultUDPTimeout)
defer cancel()
return p.ListenPacketContext(ctx, metadata)
}
// ListenPacketContext implements C.ProxyAdapter
func (p *Proxy) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (C.PacketConn, error) {
pc, err := p.ProxyAdapter.ListenPacketContext(ctx, metadata)
p.alive.Store(err == nil)
return pc, err
}
// DelayHistory implements C.Proxy
func (p *Proxy) DelayHistory() []C.DelayHistory {
queue := p.history.Copy()

5
adapter/outbound/base.go
View file

@ -1,6 +1,7 @@
package outbound
import (
"context"
"encoding/json"
"errors"
"net"
@ -30,8 +31,8 @@ func (b *Base) StreamConn(c net.Conn, metadata *C.Metadata) (net.Conn, error) {
return c, errors.New("no support")
}
// DialUDP implements C.ProxyAdapter
func (b *Base) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
// ListenPacketContext implements C.ProxyAdapter
func (b *Base) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (C.PacketConn, error) {
return nil, errors.New("no support")
}

6
adapter/outbound/direct.go
View file

@ -22,9 +22,9 @@ func (d *Direct) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn,
return NewConn(c, d), nil
}
// DialUDP implements C.ProxyAdapter
func (d *Direct) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
pc, err := dialer.ListenPacket(context.Background(), "udp", "")
// ListenPacketContext implements C.ProxyAdapter
func (d *Direct) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (C.PacketConn, error) {
pc, err := dialer.ListenPacket(ctx, "udp", "")
if err != nil {
return nil, err
}

4
adapter/outbound/reject.go
View file

@ -19,8 +19,8 @@ func (r *Reject) DialContext(ctx context.Context, metadata *C.Metadata) (C.Conn,
return NewConn(&NopConn{}, r), nil
}
// DialUDP implements C.ProxyAdapter
func (r *Reject) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
// ListenPacketContext implements C.ProxyAdapter
func (r *Reject) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (C.PacketConn, error) {
return nil, errors.New("match reject rule")
}

6
adapter/outbound/shadowsocks.go
View file

@ -87,9 +87,9 @@ func (ss *ShadowSocks) DialContext(ctx context.Context, metadata *C.Metadata) (_
return NewConn(c, ss), err
}
// DialUDP implements C.ProxyAdapter
func (ss *ShadowSocks) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
pc, err := dialer.ListenPacket(context.Background(), "udp", "")
// ListenPacketContext implements C.ProxyAdapter
func (ss *ShadowSocks) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (C.PacketConn, error) {
pc, err := dialer.ListenPacket(ctx, "udp", "")
if err != nil {
return nil, err
}

6
adapter/outbound/shadowsocksr.go
View file

@ -72,9 +72,9 @@ func (ssr *ShadowSocksR) DialContext(ctx context.Context, metadata *C.Metadata)
return NewConn(c, ssr), err
}
// DialUDP implements C.ProxyAdapter
func (ssr *ShadowSocksR) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
pc, err := dialer.ListenPacket(context.Background(), "udp", "")
// ListenPacketContext implements C.ProxyAdapter
func (ssr *ShadowSocksR) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (C.PacketConn, error) {
pc, err := dialer.ListenPacket(ctx, "udp", "")
if err != nil {
return nil, err
}

8
adapter/outbound/socks5.go
View file

@ -76,10 +76,8 @@ func (ss *Socks5) DialContext(ctx context.Context, metadata *C.Metadata) (_ C.Co
return NewConn(c, ss), nil
}
// DialUDP implements C.ProxyAdapter
func (ss *Socks5) DialUDP(metadata *C.Metadata) (_ C.PacketConn, err error) {
ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTCPTimeout)
defer cancel()
// ListenPacketContext implements C.ProxyAdapter
func (ss *Socks5) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (_ C.PacketConn, err error) {
c, err := dialer.DialContext(ctx, "tcp", ss.addr)
if err != nil {
err = fmt.Errorf("%s connect error: %w", ss.addr, err)
@ -109,7 +107,7 @@ func (ss *Socks5) DialUDP(metadata *C.Metadata) (_ C.PacketConn, err error) {
return
}
pc, err := dialer.ListenPacket(context.Background(), "udp", "")
pc, err := dialer.ListenPacket(ctx, "udp", "")
if err != nil {
return
}

6
adapter/outbound/trojan.go
View file

@ -88,8 +88,8 @@ func (t *Trojan) DialContext(ctx context.Context, metadata *C.Metadata) (_ C.Con
return NewConn(c, t), err
}
// DialUDP implements C.ProxyAdapter
func (t *Trojan) DialUDP(metadata *C.Metadata) (_ C.PacketConn, err error) {
// ListenPacketContext implements C.ProxyAdapter
func (t *Trojan) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (_ C.PacketConn, err error) {
var c net.Conn
// grpc transport
@ -100,8 +100,6 @@ func (t *Trojan) DialUDP(metadata *C.Metadata) (_ C.PacketConn, err error) {
}
defer safeConnClose(c, err)
} else {
ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTCPTimeout)
defer cancel()
c, err = dialer.DialContext(ctx, "tcp", t.addr)
if err != nil {
return nil, fmt.Errorf("%s connect error: %w", t.addr, err)

6
adapter/outbound/vmess.go
View file

@ -215,8 +215,8 @@ func (v *Vmess) DialContext(ctx context.Context, metadata *C.Metadata) (_ C.Conn
return NewConn(c, v), err
}
// DialUDP implements C.ProxyAdapter
func (v *Vmess) DialUDP(metadata *C.Metadata) (_ C.PacketConn, err error) {
// ListenPacketContext implements C.ProxyAdapter
func (v *Vmess) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (_ C.PacketConn, err error) {
// vmess use stream-oriented udp with a special address, so we needs a net.UDPAddr
if !metadata.Resolved() {
ip, err := resolver.ResolveIP(metadata.Host)
@ -237,8 +237,6 @@ func (v *Vmess) DialUDP(metadata *C.Metadata) (_ C.PacketConn, err error) {
c, err = v.client.StreamConn(c, parseVmessAddr(metadata))
} else {
ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTCPTimeout)
defer cancel()
c, err = dialer.DialContext(ctx, "tcp", v.addr)
if err != nil {
return nil, fmt.Errorf("%s connect error: %s", v.addr, err.Error())

6
adapter/outboundgroup/fallback.go
View file

@ -32,10 +32,10 @@ func (f *Fallback) DialContext(ctx context.Context, metadata *C.Metadata) (C.Con
return c, err
}
// DialUDP implements C.ProxyAdapter
func (f *Fallback) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
// ListenPacketContext implements C.ProxyAdapter
func (f *Fallback) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (C.PacketConn, error) {
proxy := f.findAliveProxy(true)
pc, err := proxy.DialUDP(metadata)
pc, err := proxy.ListenPacketContext(ctx, metadata)
if err == nil {
pc.AppendToChains(f)
}

7
adapter/outboundgroup/loadbalance.go
View file

@ -82,8 +82,8 @@ func (lb *LoadBalance) DialContext(ctx context.Context, metadata *C.Metadata) (c
return
}
// DialUDP implements C.ProxyAdapter
func (lb *LoadBalance) DialUDP(metadata *C.Metadata) (pc C.PacketConn, err error) {
// ListenPacketContext implements C.ProxyAdapter
func (lb *LoadBalance) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (pc C.PacketConn, err error) {
defer func() {
if err == nil {
pc.AppendToChains(lb)
@ -91,8 +91,7 @@ func (lb *LoadBalance) DialUDP(metadata *C.Metadata) (pc C.PacketConn, err error
}()
proxy := lb.Unwrap(metadata)
return proxy.DialUDP(metadata)
return proxy.ListenPacketContext(ctx, metadata)
}
// SupportUDP implements C.ProxyAdapter

6
adapter/outboundgroup/selector.go
View file

@ -28,9 +28,9 @@ func (s *Selector) DialContext(ctx context.Context, metadata *C.Metadata) (C.Con
return c, err
}
// DialUDP implements C.ProxyAdapter
func (s *Selector) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
pc, err := s.selectedProxy(true).DialUDP(metadata)
// ListenPacketContext implements C.ProxyAdapter
func (s *Selector) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (C.PacketConn, error) {
pc, err := s.selectedProxy(true).ListenPacketContext(ctx, metadata)
if err == nil {
pc.AppendToChains(s)
}

6
adapter/outboundgroup/urltest.go
View file

@ -42,9 +42,9 @@ func (u *URLTest) DialContext(ctx context.Context, metadata *C.Metadata) (c C.Co
return c, err
}
// DialUDP implements C.ProxyAdapter
func (u *URLTest) DialUDP(metadata *C.Metadata) (C.PacketConn, error) {
pc, err := u.fast(true).DialUDP(metadata)
// ListenPacketContext implements C.ProxyAdapter
func (u *URLTest) ListenPacketContext(ctx context.Context, metadata *C.Metadata) (C.PacketConn, error) {
pc, err := u.fast(true).ListenPacketContext(ctx, metadata)
if err == nil {
pc.AppendToChains(u)
}

19
constant/adapters.go
View file

@ -29,6 +29,7 @@ const (
const (
DefaultTCPTimeout = 5 * time.Second
DefaultUDPTimeout = DefaultTCPTimeout
)
type Connection interface {
@ -73,11 +74,14 @@ type PacketConn interface {
type ProxyAdapter interface {
Name() string
Type() AdapterType
Addr() string
SupportUDP() bool
MarshalJSON() ([]byte, error)
// StreamConn wraps a protocol around net.Conn with Metadata.
//
// Examples:
// conn, _ := net.Dial("tcp", "host:port")
// conn, _ := net.DialContext(context.Background(), "tcp", "host:port")
// conn, _ = adapter.StreamConn(conn, metadata)
//
// It returns a C.Conn with protocol which start with
@ -88,10 +92,8 @@ type ProxyAdapter interface {
// contains multiplexing-related reuse logic (if any)
DialContext(ctx context.Context, metadata *Metadata) (Conn, error)
DialUDP(metadata *Metadata) (PacketConn, error)
SupportUDP() bool
MarshalJSON() ([]byte, error)
Addr() string
ListenPacketContext(ctx context.Context, metadata *Metadata) (PacketConn, error)
// Unwrap extracts the proxy from a proxy-group. It returns nil when nothing to extract.
Unwrap(metadata *Metadata) Proxy
}
@ -105,9 +107,14 @@ type Proxy interface {
ProxyAdapter
Alive() bool
DelayHistory() []DelayHistory
Dial(metadata *Metadata) (Conn, error)
LastDelay() uint16
URLTest(ctx context.Context, url string) (uint16, error)
// Deprecated: use DialContext instead.
Dial(metadata *Metadata) (Conn, error)
// Deprecated: use DialPacketConn instead.
DialUDP(metadata *Metadata) (PacketConn, error)
}
// AdapterType is enum of adapter type

2
constant/provider/interface.go
View file

@ -67,7 +67,7 @@ type ProxyProvider interface {
Provider
Proxies() []constant.Proxy
// ProxiesWithTouch is used to inform the provider that the proxy is actually being used while getting the list of proxies.
// Commonly used in Dial and DialUDP
// Commonly used in DialContext and DialPacketConn
ProxiesWithTouch() []constant.Proxy
HealthCheck()
}

8
test/Makefile Normal file
View file

@ -0,0 +1,8 @@
lint:
golangci-lint run --disable-all -E govet -E gofumpt -E megacheck ./...
test:
go test -p 1 -v ./...
benchmark:
go test -benchmem -run=^$ -bench .

4
test/README.md
View file

@ -45,7 +45,7 @@ Prerequisite
* docker (support Linux and macOS)
```
$ go test -p 1 -v
$ make test
```
benchmark (Linux)
@ -55,5 +55,5 @@ benchmark (Linux)
> (change chunkSize to measure the maximum throughput of clash on your machine)
```
$ go test -benchmem -run=^$ -bench .
$ make benchmark
```

7
test/clash_test.go
View file

@ -96,6 +96,7 @@ func init() {
images := []string{
ImageShadowsocks,
ImageShadowsocksRust,
ImageVmess,
ImageTrojan,
ImageSnell,
@ -582,7 +583,7 @@ func testSuit(t *testing.T, proxy C.ProxyAdapter) {
return
}
pc, err := proxy.DialUDP(&C.Metadata{
pc, err := proxy.ListenPacketContext(context.Background(), &C.Metadata{
NetWork: C.UDP,
DstIP: localIP,
DstPort: "10001",
@ -595,7 +596,7 @@ func testSuit(t *testing.T, proxy C.ProxyAdapter) {
assert.NoError(t, testPingPongWithPacketConn(t, pc))
pc, err = proxy.DialUDP(&C.Metadata{
pc, err = proxy.ListenPacketContext(context.Background(), &C.Metadata{
NetWork: C.UDP,
DstIP: localIP,
DstPort: "10001",
@ -608,7 +609,7 @@ func testSuit(t *testing.T, proxy C.ProxyAdapter) {
assert.NoError(t, testLargeDataWithPacketConn(t, pc))
pc, err = proxy.DialUDP(&C.Metadata{
pc, err = proxy.ListenPacketContext(context.Background(), &C.Metadata{
NetWork: C.UDP,
DstIP: localIP,
DstPort: "10001",

27
tunnel/tunnel.go
View file

@ -1,6 +1,7 @@
package tunnel
import (
"context"
"fmt"
"net"
"runtime"
@ -12,7 +13,7 @@ import (
"github.com/Dreamacro/clash/component/resolver"
C "github.com/Dreamacro/clash/constant"
"github.com/Dreamacro/clash/constant/provider"
"github.com/Dreamacro/clash/context"
icontext "github.com/Dreamacro/clash/context"
"github.com/Dreamacro/clash/log"
"github.com/Dreamacro/clash/tunnel/statistic"
)
@ -209,14 +210,16 @@ func handleUDPConn(packet *inbound.PacketAdapter) {
cond.Broadcast()
}()
ctx := context.NewPacketConnContext(metadata)
proxy, rule, err := resolveMetadata(ctx, metadata)
pCtx := icontext.NewPacketConnContext(metadata)
proxy, rule, err := resolveMetadata(pCtx, metadata)
if err != nil {
log.Warnln("[UDP] Parse metadata failed: %s", err.Error())
return
}
rawPc, err := proxy.DialUDP(metadata)
ctx, cancel := context.WithTimeout(context.Background(), C.DefaultUDPTimeout)
defer cancel()
rawPc, err := proxy.ListenPacketContext(ctx, metadata)
if err != nil {
if rule == nil {
log.Warnln("[UDP] dial %s to %s error: %s", proxy.Name(), metadata.RemoteAddress(), err.Error())
@ -225,7 +228,7 @@ func handleUDPConn(packet *inbound.PacketAdapter) {
}
return
}
ctx.InjectPacketConn(rawPc)
pCtx.InjectPacketConn(rawPc)
pc := statistic.NewUDPTracker(rawPc, statistic.DefaultManager, metadata, rule)
switch true {
@ -246,10 +249,10 @@ func handleUDPConn(packet *inbound.PacketAdapter) {
}()
}
func handleTCPConn(ctx C.ConnContext) {
defer ctx.Conn().Close()
func handleTCPConn(connCtx C.ConnContext) {
defer connCtx.Conn().Close()
metadata := ctx.Metadata()
metadata := connCtx.Metadata()
if !metadata.Valid() {
log.Warnln("[Metadata] not valid: %#v", metadata)
return
@ -260,13 +263,15 @@ func handleTCPConn(ctx C.ConnContext) {
return
}
proxy, rule, err := resolveMetadata(ctx, metadata)
proxy, rule, err := resolveMetadata(connCtx, metadata)
if err != nil {
log.Warnln("[Metadata] parse failed: %s", err.Error())
return
}
remoteConn, err := proxy.Dial(metadata)
ctx, cancel := context.WithTimeout(context.Background(), C.DefaultTCPTimeout)
defer cancel()
remoteConn, err := proxy.DialContext(ctx, metadata)
if err != nil {
if rule == nil {
log.Warnln("[TCP] dial %s to %s error: %s", proxy.Name(), metadata.RemoteAddress(), err.Error())
@ -289,7 +294,7 @@ func handleTCPConn(ctx C.ConnContext) {
log.Infoln("[TCP] %s --> %s doesn't match any rule using DIRECT", metadata.SourceAddress(), metadata.RemoteAddress())
}
handleSocket(ctx, remoteConn)
handleSocket(connCtx, remoteConn)
}
func shouldResolveIP(rule C.Rule, metadata *C.Metadata) bool {