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Wireguard resolve strategy (#2717) 

* 增加 wireguard 出站选项 `resolveStrategy`.

* They become a part of you.

* 移除不必要的选项别名.

* aliases NG.

* 微调.

---------

Co-authored-by: rui0572 <125641819+rui0572@users.noreply.github.com>
This commit is contained in:
yuhan6665 2023-11-12 15:52:09 -05:00 committed by GitHub
parent cc4b28b159
commit a109389efb
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
6 changed files with 175 additions and 35 deletions
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17
infra/conf/wireguard.go
View File

@ -3,6 +3,7 @@ package conf
import (
"encoding/base64"
"encoding/hex"
"strings"
"github.com/xtls/xray-core/proxy/wireguard"
"google.golang.org/protobuf/proto"
@ -53,6 +54,7 @@ type WireGuardConfig struct {
MTU int `json:"mtu"`
NumWorkers int `json:"workers"`
Reserved []byte `json:"reserved"`
DomainStrategy string `json:"domainStrategy"`
}
func (c *WireGuardConfig) Build() (proto.Message, error) {
@ -96,6 +98,21 @@ func (c *WireGuardConfig) Build() (proto.Message, error) {
}
config.Reserved = c.Reserved
switch strings.ToLower(c.DomainStrategy) {
case "forceip", "":
config.DomainStrategy = wireguard.DeviceConfig_FORCE_IP
case "forceipv4":
config.DomainStrategy = wireguard.DeviceConfig_FORCE_IP4
case "forceipv6":
config.DomainStrategy = wireguard.DeviceConfig_FORCE_IP6
case "forceipv4v6":
config.DomainStrategy = wireguard.DeviceConfig_FORCE_IP46
case "forceipv6v4":
config.DomainStrategy = wireguard.DeviceConfig_FORCE_IP64
default:
return nil, newError("unsupported domain strategy: ", c.DomainStrategy)
}
return config, nil
}

4
infra/conf/wireguard_test.go
View File

@ -24,7 +24,8 @@ func TestWireGuardOutbound(t *testing.T) {
}
],
"mtu": 1300,
"workers": 2
"workers": 2,
"domainStrategy": "ForceIPv6v4"
}`,
Parser: loadJSON(creator),
Output: &wireguard.DeviceConfig{
@ -43,6 +44,7 @@ func TestWireGuardOutbound(t *testing.T) {
},
Mtu: 1300,
NumWorkers: 2,
DomainStrategy: wireguard.DeviceConfig_FORCE_IP64,
},
},
})

25
proxy/wireguard/config.go Normal file
View File

@ -0,0 +1,25 @@
package wireguard
func (c *DeviceConfig) preferIP4() bool {
return c.DomainStrategy == DeviceConfig_FORCE_IP ||
c.DomainStrategy == DeviceConfig_FORCE_IP4 ||
c.DomainStrategy == DeviceConfig_FORCE_IP46
}
func (c *DeviceConfig) preferIP6() bool {
return c.DomainStrategy == DeviceConfig_FORCE_IP ||
c.DomainStrategy == DeviceConfig_FORCE_IP6 ||
c.DomainStrategy == DeviceConfig_FORCE_IP64
}
func (c *DeviceConfig) hasFallback() bool {
return c.DomainStrategy == DeviceConfig_FORCE_IP46 || c.DomainStrategy == DeviceConfig_FORCE_IP64
}
func (c *DeviceConfig) fallbackIP4() bool {
return c.DomainStrategy == DeviceConfig_FORCE_IP64
}
func (c *DeviceConfig) fallbackIP6() bool {
return c.DomainStrategy == DeviceConfig_FORCE_IP46
}

113
proxy/wireguard/config.pb.go
View File

@ -20,6 +20,61 @@ const (
_ = protoimpl.EnforceVersion(protoimpl.MaxVersion - 20)
)
type DeviceConfig_DomainStrategy int32
const (
DeviceConfig_FORCE_IP DeviceConfig_DomainStrategy = 0
DeviceConfig_FORCE_IP4 DeviceConfig_DomainStrategy = 1
DeviceConfig_FORCE_IP6 DeviceConfig_DomainStrategy = 2
DeviceConfig_FORCE_IP46 DeviceConfig_DomainStrategy = 3
DeviceConfig_FORCE_IP64 DeviceConfig_DomainStrategy = 4
)
// Enum value maps for DeviceConfig_DomainStrategy.
var (
DeviceConfig_DomainStrategy_name = map[int32]string{
0: "FORCE_IP",
1: "FORCE_IP4",
2: "FORCE_IP6",
3: "FORCE_IP46",
4: "FORCE_IP64",
}
DeviceConfig_DomainStrategy_value = map[string]int32{
"FORCE_IP": 0,
"FORCE_IP4": 1,
"FORCE_IP6": 2,
"FORCE_IP46": 3,
"FORCE_IP64": 4,
}
)
func (x DeviceConfig_DomainStrategy) Enum() *DeviceConfig_DomainStrategy {
p := new(DeviceConfig_DomainStrategy)
*p = x
return p
}
func (x DeviceConfig_DomainStrategy) String() string {
return protoimpl.X.EnumStringOf(x.Descriptor(), protoreflect.EnumNumber(x))
}
func (DeviceConfig_DomainStrategy) Descriptor() protoreflect.EnumDescriptor {
return file_proxy_wireguard_config_proto_enumTypes[0].Descriptor()
}
func (DeviceConfig_DomainStrategy) Type() protoreflect.EnumType {
return &file_proxy_wireguard_config_proto_enumTypes[0]
}
func (x DeviceConfig_DomainStrategy) Number() protoreflect.EnumNumber {
return protoreflect.EnumNumber(x)
}
// Deprecated: Use DeviceConfig_DomainStrategy.Descriptor instead.
func (DeviceConfig_DomainStrategy) EnumDescriptor() ([]byte, []int) {
return file_proxy_wireguard_config_proto_rawDescGZIP(), []int{1, 0}
}
type PeerConfig struct {
state protoimpl.MessageState
sizeCache protoimpl.SizeCache
@ -110,6 +165,7 @@ type DeviceConfig struct {
Mtu int32 `protobuf:"varint,4,opt,name=mtu,proto3" json:"mtu,omitempty"`
NumWorkers int32 `protobuf:"varint,5,opt,name=num_workers,json=numWorkers,proto3" json:"num_workers,omitempty"`
Reserved []byte `protobuf:"bytes,6,opt,name=reserved,proto3" json:"reserved,omitempty"`
DomainStrategy DeviceConfig_DomainStrategy `protobuf:"varint,7,opt,name=domain_strategy,json=domainStrategy,proto3,enum=xray.proxy.wireguard.DeviceConfig_DomainStrategy" json:"domain_strategy,omitempty"`
}
func (x *DeviceConfig) Reset() {
@ -186,6 +242,13 @@ func (x *DeviceConfig) GetReserved() []byte {
return nil
}
func (x *DeviceConfig) GetDomainStrategy() DeviceConfig_DomainStrategy {
if x != nil {
return x.DomainStrategy
}
return DeviceConfig_FORCE_IP
}
var File_proxy_wireguard_config_proto protoreflect.FileDescriptor
var file_proxy_wireguard_config_proto_rawDesc = []byte{
@ -203,7 +266,7 @@ var file_proxy_wireguard_config_proto_rawDesc = []byte{
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@ -216,13 +279,25 @@ var file_proxy_wireguard_config_proto_rawDesc = []byte{
0x6d, 0x5f, 0x77, 0x6f, 0x72, 0x6b, 0x65, 0x72, 0x73, 0x18, 0x05, 0x20, 0x01, 0x28, 0x05, 0x52,
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}
var (
@ -237,18 +312,21 @@ func file_proxy_wireguard_config_proto_rawDescGZIP() []byte {
return file_proxy_wireguard_config_proto_rawDescData
}
var file_proxy_wireguard_config_proto_enumTypes = make([]protoimpl.EnumInfo, 1)
var file_proxy_wireguard_config_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
var file_proxy_wireguard_config_proto_goTypes = []interface{}{
(*PeerConfig)(nil), // 0: xray.proxy.wireguard.PeerConfig
(*DeviceConfig)(nil), // 1: xray.proxy.wireguard.DeviceConfig
(DeviceConfig_DomainStrategy)(0), // 0: xray.proxy.wireguard.DeviceConfig.DomainStrategy
(*PeerConfig)(nil), // 1: xray.proxy.wireguard.PeerConfig
(*DeviceConfig)(nil), // 2: xray.proxy.wireguard.DeviceConfig
}
var file_proxy_wireguard_config_proto_depIdxs = []int32{
0, // 0: xray.proxy.wireguard.DeviceConfig.peers:type_name -> xray.proxy.wireguard.PeerConfig
1, // [1:1] is the sub-list for method output_type
1, // [1:1] is the sub-list for method input_type
1, // [1:1] is the sub-list for extension type_name
1, // [1:1] is the sub-list for extension extendee
0, // [0:1] is the sub-list for field type_name
1, // 0: xray.proxy.wireguard.DeviceConfig.peers:type_name -> xray.proxy.wireguard.PeerConfig
0, // 1: xray.proxy.wireguard.DeviceConfig.domain_strategy:type_name -> xray.proxy.wireguard.DeviceConfig.DomainStrategy
2, // [2:2] is the sub-list for method output_type
2, // [2:2] is the sub-list for method input_type
2, // [2:2] is the sub-list for extension type_name
2, // [2:2] is the sub-list for extension extendee
0, // [0:2] is the sub-list for field type_name
}
func init() { file_proxy_wireguard_config_proto_init() }
@ -287,13 +365,14 @@ func file_proxy_wireguard_config_proto_init() {
File: protoimpl.DescBuilder{
GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
RawDescriptor: file_proxy_wireguard_config_proto_rawDesc,
NumEnums: 0,
NumEnums: 1,
NumMessages: 2,
NumExtensions: 0,
NumServices: 0,
},
GoTypes: file_proxy_wireguard_config_proto_goTypes,
DependencyIndexes: file_proxy_wireguard_config_proto_depIdxs,
EnumInfos: file_proxy_wireguard_config_proto_enumTypes,
MessageInfos: file_proxy_wireguard_config_proto_msgTypes,
}.Build()
File_proxy_wireguard_config_proto = out.File

8
proxy/wireguard/config.proto
View File

@ -15,10 +15,18 @@ message PeerConfig {
}
message DeviceConfig {
enum DomainStrategy {
FORCE_IP = 0;
FORCE_IP4 = 1;
FORCE_IP6 = 2;
FORCE_IP46 = 3;
FORCE_IP64 = 4;
}
string secret_key = 1;
repeated string endpoint = 2;
repeated PeerConfig peers = 3;
int32 mtu = 4;
int32 num_workers = 5;
bytes reserved = 6;
DomainStrategy domain_strategy = 7;
}

15
proxy/wireguard/wireguard.go
View File

@ -31,6 +31,7 @@ import (
"github.com/xtls/xray-core/common"
"github.com/xtls/xray-core/common/buf"
"github.com/xtls/xray-core/common/dice"
"github.com/xtls/xray-core/common/log"
"github.com/xtls/xray-core/common/net"
"github.com/xtls/xray-core/common/protocol"
@ -159,15 +160,23 @@ func (h *Handler) Process(ctx context.Context, link *transport.Link, dialer inte
addr := destination.Address
if addr.Family().IsDomain() {
ips, err := h.dns.LookupIP(addr.Domain(), dns.IPOption{
IPv4Enable: h.hasIPv4,
IPv6Enable: h.hasIPv6,
IPv4Enable: h.hasIPv4 && h.conf.preferIP4(),
IPv6Enable: h.hasIPv6 && h.conf.preferIP6(),
})
{ // Resolve fallback
if (len(ips) == 0 || err != nil) && h.conf.hasFallback() {
ips, err = h.dns.LookupIP(addr.Domain(), dns.IPOption{
IPv4Enable: h.hasIPv4 && h.conf.fallbackIP4(),
IPv6Enable: h.hasIPv6 && h.conf.fallbackIP6(),
})
}
}
if err != nil {
return newError("failed to lookup DNS").Base(err)
} else if len(ips) == 0 {
return dns.ErrEmptyResponse
}
addr = net.IPAddress(ips[0])
addr = net.IPAddress(ips[dice.Roll(len(ips))])
}
var newCtx context.Context