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feat: support Hysteria2

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This commit is contained in:
gVisor bot 2023-09-21 10:28:28 +08:00
parent b23ccfdf45
commit 7df4e115de
7 changed files with 269 additions and 36 deletions
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36
adapter/outbound/hysteria.go
View file

@ -268,42 +268,6 @@ func NewHysteria(option HysteriaOption) (*Hysteria, error) {
}, nil
}
func stringToBps(s string) uint64 {
if s == "" {
return 0
}
// when have not unit, use Mbps
if v, err := strconv.Atoi(s); err == nil {
return stringToBps(fmt.Sprintf("%d Mbps", v))
}
m := rateStringRegexp.FindStringSubmatch(s)
if m == nil {
return 0
}
var n uint64
switch m[2] {
case "K":
n = 1 << 10
case "M":
n = 1 << 20
case "G":
n = 1 << 30
case "T":
n = 1 << 40
default:
n = 1
}
v, _ := strconv.ParseUint(m[1], 10, 64)
n = v * n
if m[3] == "b" {
// Bits, need to convert to bytes
n = n >> 3
}
return n
}
type hyPacketConn struct {
core.UDPConn
}

218
adapter/outbound/hysteria2.go Normal file
View file

@ -0,0 +1,218 @@
package outbound
import (
"context"
"crypto/sha256"
"crypto/tls"
"encoding/hex"
"encoding/pem"
"errors"
"fmt"
"net"
"os"
"runtime"
"strconv"
CN "github.com/Dreamacro/clash/common/net"
"github.com/Dreamacro/clash/component/dialer"
"github.com/Dreamacro/clash/component/proxydialer"
tlsC "github.com/Dreamacro/clash/component/tls"
C "github.com/Dreamacro/clash/constant"
tuicCommon "github.com/Dreamacro/clash/transport/tuic/common"
"github.com/metacubex/sing-quic/hysteria2"
M "github.com/sagernet/sing/common/metadata"
N "github.com/sagernet/sing/common/network"
)
func init() {
hysteria2.SetCongestionController = tuicCommon.SetCongestionController
}
type Hysteria2 struct {
*Base
option *Hysteria2Option
client *hysteria2.Client
dialer *hy2SingDialer
}
type Hysteria2Option struct {
BasicOption
Name string `proxy:"name"`
Server string `proxy:"server"`
Port int `proxy:"port"`
Up string `proxy:"up,omitempty"`
Down string `proxy:"down,omitempty"`
Password string `proxy:"password,omitempty"`
Obfs string `proxy:"obfs,omitempty"`
ObfsPassword string `proxy:"obfs-password,omitempty"`
SNI string `proxy:"sni,omitempty"`
SkipCertVerify bool `proxy:"skip-cert-verify,omitempty"`
Fingerprint string `proxy:"fingerprint,omitempty"`
ALPN []string `proxy:"alpn,omitempty"`
CustomCA string `proxy:"ca,omitempty"`
CustomCAString string `proxy:"ca-str,omitempty"`
}
type hy2SingDialer struct {
dialer dialer.Dialer
proxyName string
}
var _ N.Dialer = (*hy2SingDialer)(nil)
func (d *hy2SingDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
var cDialer C.Dialer = d.dialer
if len(d.proxyName) > 0 {
pd, err := proxydialer.NewByName(d.proxyName, d.dialer)
if err != nil {
return nil, err
}
cDialer = pd
}
return cDialer.DialContext(ctx, network, destination.String())
}
func (d *hy2SingDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
var cDialer C.Dialer = d.dialer
if len(d.proxyName) > 0 {
pd, err := proxydialer.NewByName(d.proxyName, d.dialer)
if err != nil {
return nil, err
}
cDialer = pd
}
return cDialer.ListenPacket(ctx, "udp", "", destination.AddrPort())
}
func (h *Hysteria2) DialContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.Conn, err error) {
options := h.Base.DialOptions(opts...)
h.dialer.dialer = dialer.NewDialer(options...)
c, err := h.client.DialConn(ctx, M.ParseSocksaddr(metadata.RemoteAddress()))
if err != nil {
return nil, err
}
return NewConn(CN.NewRefConn(c, h), h), nil
}
func (h *Hysteria2) ListenPacketContext(ctx context.Context, metadata *C.Metadata, opts ...dialer.Option) (_ C.PacketConn, err error) {
options := h.Base.DialOptions(opts...)
h.dialer.dialer = dialer.NewDialer(options...)
pc, err := h.client.ListenPacket(ctx)
if err != nil {
return nil, err
}
if pc == nil {
return nil, errors.New("packetConn is nil")
}
return newPacketConn(CN.NewRefPacketConn(CN.NewThreadSafePacketConn(pc), h), h), nil
}
func closeHysteria2(h *Hysteria2) {
if h.client != nil {
_ = h.client.CloseWithError(errors.New("proxy removed"))
}
}
func NewHysteria2(option Hysteria2Option) (*Hysteria2, error) {
addr := net.JoinHostPort(option.Server, strconv.Itoa(option.Port))
var salamanderPassword string
if len(option.Obfs) > 0 {
if option.ObfsPassword == "" {
return nil, errors.New("missing obfs password")
}
switch option.Obfs {
case hysteria2.ObfsTypeSalamander:
salamanderPassword = option.ObfsPassword
default:
return nil, fmt.Errorf("unknown obfs type: %s", option.Obfs)
}
}
serverName := option.Server
if option.SNI != "" {
serverName = option.SNI
}
tlsConfig := &tls.Config{
ServerName: serverName,
InsecureSkipVerify: option.SkipCertVerify,
MinVersion: tls.VersionTLS13,
}
var bs []byte
var err error
if len(option.CustomCA) > 0 {
bs, err = os.ReadFile(option.CustomCA)
if err != nil {
return nil, fmt.Errorf("hysteria %s load ca error: %w", option.Name, err)
}
} else if option.CustomCAString != "" {
bs = []byte(option.CustomCAString)
}
if len(bs) > 0 {
block, _ := pem.Decode(bs)
if block == nil {
return nil, fmt.Errorf("CA cert is not PEM")
}
fpBytes := sha256.Sum256(block.Bytes)
if len(option.Fingerprint) == 0 {
option.Fingerprint = hex.EncodeToString(fpBytes[:])
}
}
if len(option.Fingerprint) != 0 {
var err error
tlsConfig, err = tlsC.GetSpecifiedFingerprintTLSConfig(tlsConfig, option.Fingerprint)
if err != nil {
return nil, err
}
} else {
tlsConfig = tlsC.GetGlobalTLSConfig(tlsConfig)
}
if len(option.ALPN) > 0 {
tlsConfig.NextProtos = option.ALPN
}
singDialer := &hy2SingDialer{dialer: dialer.NewDialer(), proxyName: option.DialerProxy}
clientOptions := hysteria2.ClientOptions{
Context: context.TODO(),
Dialer: singDialer,
ServerAddress: M.ParseSocksaddrHostPort(option.Server, uint16(option.Port)),
SendBPS: stringToBps(option.Up),
ReceiveBPS: stringToBps(option.Down),
SalamanderPassword: salamanderPassword,
Password: option.Password,
TLSConfig: tlsConfig,
UDPDisabled: false,
}
client, err := hysteria2.NewClient(clientOptions)
if err != nil {
return nil, err
}
outbound := &Hysteria2{
Base: &Base{
name: option.Name,
addr: addr,
tp: C.Hysteria2,
udp: true,
iface: option.Interface,
rmark: option.RoutingMark,
prefer: C.NewDNSPrefer(option.IPVersion),
},
option: &option,
client: client,
dialer: singDialer,
}
runtime.SetFinalizer(outbound, closeHysteria2)
return outbound, nil
}

38
adapter/outbound/util.go
View file

@ -4,8 +4,10 @@ import (
"bytes"
"context"
"crypto/tls"
"fmt"
"net"
"net/netip"
"strconv"
"sync"
"github.com/Dreamacro/clash/component/resolver"
@ -120,3 +122,39 @@ func safeConnClose(c net.Conn, err error) {
_ = c.Close()
}
}
func stringToBps(s string) uint64 {
if s == "" {
return 0
}
// when have not unit, use Mbps
if v, err := strconv.Atoi(s); err == nil {
return stringToBps(fmt.Sprintf("%d Mbps", v))
}
m := rateStringRegexp.FindStringSubmatch(s)
if m == nil {
return 0
}
var n uint64
switch m[2] {
case "K":
n = 1 << 10
case "M":
n = 1 << 20
case "G":
n = 1 << 30
case "T":
n = 1 << 40
default:
n = 1
}
v, _ := strconv.ParseUint(m[1], 10, 64)
n = v * n
if m[3] == "b" {
// Bits, need to convert to bytes
n = n >> 3
}
return n
}

7
adapter/parser.go
View file

@ -92,6 +92,13 @@ func ParseProxy(mapping map[string]any) (C.Proxy, error) {
break
}
proxy, err = outbound.NewHysteria(*hyOption)
case "hysteria2":
hyOption := &outbound.Hysteria2Option{}
err = decoder.Decode(mapping, hyOption)
if err != nil {
break
}
proxy, err = outbound.NewHysteria2(*hyOption)
case "wireguard":
wgOption := &outbound.WireGuardOption{}
err = decoder.Decode(mapping, wgOption)

3
constant/adapters.go
View file

@ -36,6 +36,7 @@ const (
Vless
Trojan
Hysteria
Hysteria2
WireGuard
Tuic
)
@ -200,6 +201,8 @@ func (at AdapterType) String() string {
return "Trojan"
case Hysteria:
return "Hysteria"
case Hysteria2:
return "Hysteria2"
case WireGuard:
return "WireGuard"
case Tuic:

1
go.mod
View file

@ -20,6 +20,7 @@ require (
github.com/mdlayher/netlink v1.7.2
github.com/metacubex/gopacket v1.1.20-0.20230608035415-7e2f98a3e759
github.com/metacubex/quic-go v0.38.1-0.20230909013832-033f6a2115cf
github.com/metacubex/sing-quic v0.0.0-20230921015854-1ed89eed54d5
github.com/metacubex/sing-shadowsocks v0.2.5
github.com/metacubex/sing-shadowsocks2 v0.1.4
github.com/metacubex/sing-tun v0.1.12

2
go.sum
View file

@ -99,6 +99,8 @@ github.com/metacubex/quic-go v0.38.1-0.20230909013832-033f6a2115cf h1:hflzPbb2M+
github.com/metacubex/quic-go v0.38.1-0.20230909013832-033f6a2115cf/go.mod h1:7RCcKJJk1DMeNQQNnYKS+7FqftqPfG031oP8jrYRMw8=
github.com/metacubex/sing v0.0.0-20230921005553-6eacdd2c7a24 h1:652uMd78eKMU7/sVkW8qqAdZkJaiDoUflfCs5LHvb0Q=
github.com/metacubex/sing v0.0.0-20230921005553-6eacdd2c7a24/go.mod h1:GQ673iPfUnkbK/dIPkfd1Xh1MjOGo36gkl/mkiHY7Jg=
github.com/metacubex/sing-quic v0.0.0-20230921015854-1ed89eed54d5 h1:XhWilr6vJoXy4n/sP2datek28FTF3s3rWHhezdFFD8s=
github.com/metacubex/sing-quic v0.0.0-20230921015854-1ed89eed54d5/go.mod h1:oGpQmqe5tj3sPdPWCNLbBoUSwqd+Z6SqVO7TlMNVnH4=
github.com/metacubex/sing-shadowsocks v0.2.5 h1:O2RRSHlKGEpAVG/OHJQxyHqDy8uvvdCW/oW2TDBOIhc=
github.com/metacubex/sing-shadowsocks v0.2.5/go.mod h1:Xz2uW9BEYGEoA8B4XEpoxt7ERHClFCwsMAvWaruoyMo=
github.com/metacubex/sing-shadowsocks2 v0.1.4 h1:OOCf8lgsVcpTOJUeaFAMzyKVebaQOBnKirDdUdBoKIE=