mirror of
https://github.com/XTLS/Xray-core.git
synced 2025-04-30 09:18:34 +00:00
Fakedns improvements (#731)
Co-authored-by: Shelikhoo <xiaokangwang@outlook.com> Co-authored-by: sixg0000d <sixg0000d@gmail.com> Co-authored-by: Loyalsoldier <10487845+Loyalsoldier@users.noreply.github.com>
This commit is contained in:
yuhan6665
GitHub
parent
e286cdcaa8
commit
6b6974c804
12 changed files with 478 additions and 59 deletions
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@ -29,6 +29,7 @@ type DNS struct {
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ipOption *dns.IPOption
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hosts *StaticHosts
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clients []*Client
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ctx context.Context
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domainMatcher strmatcher.IndexMatcher
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matcherInfos []*DomainMatcherInfo
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}
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@ -136,6 +137,7 @@ func New(ctx context.Context, config *Config) (*DNS, error) {
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hosts: hosts,
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ipOption: ipOption,
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clients: clients,
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ctx: ctx,
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domainMatcher: domainMatcher,
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matcherInfos: matcherInfos,
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disableCache: config.DisableCache,
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@ -199,7 +201,7 @@ func (s *DNS) LookupIP(domain string, option dns.IPOption) ([]net.IP, error) {
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// Name servers lookup
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errs := []error{}
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ctx := session.ContextWithInbound(context.Background(), &session.Inbound{Tag: s.tag})
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ctx := session.ContextWithInbound(s.ctx, &session.Inbound{Tag: s.tag})
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for _, client := range s.sortClients(domain) {
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if !option.FakeEnable && strings.EqualFold(client.Name(), "FakeDNS") {
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newError("skip DNS resolution for domain ", domain, " at server ", client.Name()).AtDebug().WriteToLog()
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@ -20,12 +20,30 @@ type Holder struct {
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config *FakeDnsPool
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}
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func (fkdns *Holder) IsIPInIPPool(ip net.Address) bool {
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if ip.Family().IsDomain() {
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return false
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}
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return fkdns.ipRange.Contains(ip.IP())
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}
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func (fkdns *Holder) GetFakeIPForDomain3(domain string, ipv4, ipv6 bool) []net.Address {
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isIPv6 := fkdns.ipRange.IP.To4() == nil
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if (isIPv6 && ipv6) || (!isIPv6 && ipv4) {
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return fkdns.GetFakeIPForDomain(domain)
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}
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return []net.Address{}
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}
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func (*Holder) Type() interface{} {
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return (*dns.FakeDNSEngine)(nil)
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}
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func (fkdns *Holder) Start() error {
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return fkdns.initializeFromConfig()
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if fkdns.config != nil && fkdns.config.IpPool != "" && fkdns.config.LruSize != 0 {
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return fkdns.initializeFromConfig()
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}
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return newError("invalid fakeDNS setting")
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}
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func (fkdns *Holder) Close() error {
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@ -41,7 +59,7 @@ func NewFakeDNSHolder() (*Holder, error) {
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if fkdns, err = NewFakeDNSHolderConfigOnly(nil); err != nil {
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return nil, newError("Unable to create Fake Dns Engine").Base(err).AtError()
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}
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err = fkdns.initialize(dns.FakeIPPool, 65535)
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err = fkdns.initialize(dns.FakeIPv4Pool, 65535)
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if err != nil {
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return nil, err
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}
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@ -117,9 +135,92 @@ func (fkdns *Holder) GetDomainFromFakeDNS(ip net.Address) string {
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return ""
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}
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// GetFakeIPRange return fake IP range from configuration
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func (fkdns *Holder) GetFakeIPRange() *gonet.IPNet {
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return fkdns.ipRange
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type HolderMulti struct {
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holders []*Holder
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config *FakeDnsPoolMulti
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}
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func (h *HolderMulti) IsIPInIPPool(ip net.Address) bool {
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if ip.Family().IsDomain() {
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return false
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}
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for _, v := range h.holders {
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if v.IsIPInIPPool(ip) {
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return true
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}
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}
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return false
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}
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func (h *HolderMulti) GetFakeIPForDomain3(domain string, ipv4, ipv6 bool) []net.Address {
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var ret []net.Address
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for _, v := range h.holders {
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ret = append(ret, v.GetFakeIPForDomain3(domain, ipv4, ipv6)...)
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}
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return ret
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}
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func (h *HolderMulti) GetFakeIPForDomain(domain string) []net.Address {
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var ret []net.Address
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for _, v := range h.holders {
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ret = append(ret, v.GetFakeIPForDomain(domain)...)
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}
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return ret
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}
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func (h *HolderMulti) GetDomainFromFakeDNS(ip net.Address) string {
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for _, v := range h.holders {
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if domain := v.GetDomainFromFakeDNS(ip); domain != "" {
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return domain
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}
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}
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return ""
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}
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func (h *HolderMulti) Type() interface{} {
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return (*dns.FakeDNSEngine)(nil)
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}
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func (h *HolderMulti) Start() error {
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for _, v := range h.holders {
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if v.config != nil && v.config.IpPool != "" && v.config.LruSize != 0 {
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if err := v.Start(); err != nil {
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return newError("Cannot start all fake dns pools").Base(err)
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}
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} else {
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return newError("invalid fakeDNS setting")
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}
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}
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return nil
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}
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func (h *HolderMulti) Close() error {
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for _, v := range h.holders {
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if err := v.Close(); err != nil {
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return newError("Cannot close all fake dns pools").Base(err)
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}
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}
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return nil
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}
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func (h *HolderMulti) createHolderGroups() error {
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for _, v := range h.config.Pools {
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holder, err := NewFakeDNSHolderConfigOnly(v)
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if err != nil {
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return err
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}
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h.holders = append(h.holders, holder)
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}
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return nil
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}
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func NewFakeDNSHolderMulti(conf *FakeDnsPoolMulti) (*HolderMulti, error) {
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holderMulti := &HolderMulti{nil, conf}
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if err := holderMulti.createHolderGroups(); err != nil {
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return nil, err
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}
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return holderMulti, nil
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}
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func init() {
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@ -131,4 +232,13 @@ func init() {
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}
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return f, nil
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}))
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common.Must(common.RegisterConfig((*FakeDnsPoolMulti)(nil), func(ctx context.Context, config interface{}) (interface{}, error) {
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var f *HolderMulti
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var err error
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if f, err = NewFakeDNSHolderMulti(config.(*FakeDnsPoolMulti)); err != nil {
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return nil, err
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}
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return f, nil
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}))
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}
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@ -75,6 +75,53 @@ func (x *FakeDnsPool) GetLruSize() int64 {
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return 0
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}
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type FakeDnsPoolMulti struct {
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state protoimpl.MessageState
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sizeCache protoimpl.SizeCache
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unknownFields protoimpl.UnknownFields
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Pools []*FakeDnsPool `protobuf:"bytes,1,rep,name=pools,proto3" json:"pools,omitempty"`
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}
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func (x *FakeDnsPoolMulti) Reset() {
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*x = FakeDnsPoolMulti{}
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if protoimpl.UnsafeEnabled {
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mi := &file_app_dns_fakedns_fakedns_proto_msgTypes[1]
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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ms.StoreMessageInfo(mi)
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}
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}
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func (x *FakeDnsPoolMulti) String() string {
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return protoimpl.X.MessageStringOf(x)
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}
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func (*FakeDnsPoolMulti) ProtoMessage() {}
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func (x *FakeDnsPoolMulti) ProtoReflect() protoreflect.Message {
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mi := &file_app_dns_fakedns_fakedns_proto_msgTypes[1]
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if protoimpl.UnsafeEnabled && x != nil {
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ms := protoimpl.X.MessageStateOf(protoimpl.Pointer(x))
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if ms.LoadMessageInfo() == nil {
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ms.StoreMessageInfo(mi)
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}
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return ms
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}
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return mi.MessageOf(x)
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}
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// Deprecated: Use FakeDnsPoolMulti.ProtoReflect.Descriptor instead.
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func (*FakeDnsPoolMulti) Descriptor() ([]byte, []int) {
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return file_app_dns_fakedns_fakedns_proto_rawDescGZIP(), []int{1}
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}
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func (x *FakeDnsPoolMulti) GetPools() []*FakeDnsPool {
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if x != nil {
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return x.Pools
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}
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return nil
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}
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var File_app_dns_fakedns_fakedns_proto protoreflect.FileDescriptor
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var file_app_dns_fakedns_fakedns_proto_rawDesc = []byte{
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@ -85,13 +132,18 @@ var file_app_dns_fakedns_fakedns_proto_rawDesc = []byte{
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}
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var (
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@ -106,16 +158,18 @@ func file_app_dns_fakedns_fakedns_proto_rawDescGZIP() []byte {
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return file_app_dns_fakedns_fakedns_proto_rawDescData
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}
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var file_app_dns_fakedns_fakedns_proto_msgTypes = make([]protoimpl.MessageInfo, 1)
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var file_app_dns_fakedns_fakedns_proto_msgTypes = make([]protoimpl.MessageInfo, 2)
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var file_app_dns_fakedns_fakedns_proto_goTypes = []interface{}{
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(*FakeDnsPool)(nil), // 0: xray.app.dns.fakedns.FakeDnsPool
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(*FakeDnsPool)(nil), // 0: xray.app.dns.fakedns.FakeDnsPool
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(*FakeDnsPoolMulti)(nil), // 1: xray.app.dns.fakedns.FakeDnsPoolMulti
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}
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var file_app_dns_fakedns_fakedns_proto_depIdxs = []int32{
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0, // [0:0] is the sub-list for method output_type
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0, // [0:0] is the sub-list for method input_type
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0, // [0:0] is the sub-list for extension type_name
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0, // [0:0] is the sub-list for extension extendee
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0, // [0:0] is the sub-list for field type_name
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0, // 0: xray.app.dns.fakedns.FakeDnsPoolMulti.pools:type_name -> xray.app.dns.fakedns.FakeDnsPool
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1, // [1:1] is the sub-list for method output_type
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1, // [1:1] is the sub-list for method input_type
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1, // [1:1] is the sub-list for extension type_name
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1, // [1:1] is the sub-list for extension extendee
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0, // [0:1] is the sub-list for field type_name
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}
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func init() { file_app_dns_fakedns_fakedns_proto_init() }
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@ -136,6 +190,18 @@ func file_app_dns_fakedns_fakedns_proto_init() {
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return nil
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}
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}
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file_app_dns_fakedns_fakedns_proto_msgTypes[1].Exporter = func(v interface{}, i int) interface{} {
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switch v := v.(*FakeDnsPoolMulti); i {
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case 0:
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return &v.state
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case 1:
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return &v.sizeCache
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case 2:
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return &v.unknownFields
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default:
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return nil
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}
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}
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}
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type x struct{}
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out := protoimpl.TypeBuilder{
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@ -143,7 +209,7 @@ func file_app_dns_fakedns_fakedns_proto_init() {
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GoPackagePath: reflect.TypeOf(x{}).PkgPath(),
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RawDescriptor: file_app_dns_fakedns_fakedns_proto_rawDesc,
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NumEnums: 0,
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NumMessages: 1,
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NumMessages: 2,
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NumExtensions: 0,
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NumServices: 0,
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},
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@ -9,4 +9,8 @@ option java_multiple_files = true;
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message FakeDnsPool{
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string ip_pool = 1; //CIDR of IP pool used as fake DNS IP
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int64 lruSize = 2; //Size of Pool for remembering relationship between domain name and IP address
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}
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message FakeDnsPoolMulti{
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repeated FakeDnsPool pools = 1;
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}
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@ -3,6 +3,8 @@ package fakedns
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import (
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"testing"
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gonet "net"
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"github.com/stretchr/testify/assert"
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"github.com/xtls/xray-core/common"
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@ -11,7 +13,7 @@ import (
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"github.com/xtls/xray-core/features/dns"
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)
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var ipPrefix = "198.18."
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var ipPrefix = "198.1"
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func TestNewFakeDnsHolder(_ *testing.T) {
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_, err := NewFakeDNSHolder()
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@ -67,7 +69,7 @@ func TestFakeDnsHolderCreateMappingManySingleDomain(t *testing.T) {
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func TestFakeDnsHolderCreateMappingAndRollOver(t *testing.T) {
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fkdns, err := NewFakeDNSHolderConfigOnly(&FakeDnsPool{
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IpPool: dns.FakeIPPool,
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IpPool: dns.FakeIPv4Pool,
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LruSize: 256,
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})
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common.Must(err)
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@ -101,3 +103,79 @@ func TestFakeDnsHolderCreateMappingAndRollOver(t *testing.T) {
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}
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}
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}
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func TestFakeDNSMulti(t *testing.T) {
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fakeMulti, err := NewFakeDNSHolderMulti(&FakeDnsPoolMulti{
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Pools: []*FakeDnsPool{{
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IpPool: "240.0.0.0/12",
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LruSize: 256,
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}, {
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IpPool: "fddd:c5b4:ff5f:f4f0::/64",
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LruSize: 256,
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}},
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},
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)
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common.Must(err)
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err = fakeMulti.Start()
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common.Must(err)
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|
||||
assert.Nil(t, err, "Should not throw error")
|
||||
_ = fakeMulti
|
||||
|
||||
t.Run("checkInRange", func(t *testing.T) {
|
||||
t.Run("ipv4", func(t *testing.T) {
|
||||
inPool := fakeMulti.IsIPInIPPool(net.IPAddress([]byte{240, 0, 0, 5}))
|
||||
assert.True(t, inPool)
|
||||
})
|
||||
t.Run("ipv6", func(t *testing.T) {
|
||||
ip, err := gonet.ResolveIPAddr("ip", "fddd:c5b4:ff5f:f4f0::5")
|
||||
assert.Nil(t, err)
|
||||
inPool := fakeMulti.IsIPInIPPool(net.IPAddress(ip.IP))
|
||||
assert.True(t, inPool)
|
||||
})
|
||||
t.Run("ipv4_inverse", func(t *testing.T) {
|
||||
inPool := fakeMulti.IsIPInIPPool(net.IPAddress([]byte{241, 0, 0, 5}))
|
||||
assert.False(t, inPool)
|
||||
})
|
||||
t.Run("ipv6_inverse", func(t *testing.T) {
|
||||
ip, err := gonet.ResolveIPAddr("ip", "fcdd:c5b4:ff5f:f4f0::5")
|
||||
assert.Nil(t, err)
|
||||
inPool := fakeMulti.IsIPInIPPool(net.IPAddress(ip.IP))
|
||||
assert.False(t, inPool)
|
||||
})
|
||||
})
|
||||
|
||||
t.Run("allocateTwoAddressForTwoPool", func(t *testing.T) {
|
||||
address := fakeMulti.GetFakeIPForDomain("fakednstest.v2fly.org")
|
||||
assert.Len(t, address, 2, "should be 2 address one for each pool")
|
||||
t.Run("eachOfThemShouldResolve:0", func(t *testing.T) {
|
||||
domain := fakeMulti.GetDomainFromFakeDNS(address[0])
|
||||
assert.Equal(t, "fakednstest.v2fly.org", domain)
|
||||
})
|
||||
t.Run("eachOfThemShouldResolve:1", func(t *testing.T) {
|
||||
domain := fakeMulti.GetDomainFromFakeDNS(address[1])
|
||||
assert.Equal(t, "fakednstest.v2fly.org", domain)
|
||||
})
|
||||
})
|
||||
|
||||
t.Run("understandIPTypeSelector", func(t *testing.T) {
|
||||
t.Run("ipv4", func(t *testing.T) {
|
||||
address := fakeMulti.GetFakeIPForDomain3("fakednstestipv4.v2fly.org", true, false)
|
||||
assert.Len(t, address, 1, "should be 1 address")
|
||||
assert.True(t, address[0].Family().IsIPv4())
|
||||
})
|
||||
t.Run("ipv6", func(t *testing.T) {
|
||||
address := fakeMulti.GetFakeIPForDomain3("fakednstestipv6.v2fly.org", false, true)
|
||||
assert.Len(t, address, 1, "should be 1 address")
|
||||
assert.True(t, address[0].Family().IsIPv6())
|
||||
})
|
||||
t.Run("ipv46", func(t *testing.T) {
|
||||
address := fakeMulti.GetFakeIPForDomain3("fakednstestipv46.v2fly.org", true, true)
|
||||
assert.Len(t, address, 2, "should be 2 address")
|
||||
assert.True(t, address[0].Family().IsIPv4())
|
||||
assert.True(t, address[1].Family().IsIPv6())
|
||||
})
|
||||
})
|
||||
}
|
||||
|
|
|
|||
|
|
@ -20,7 +20,7 @@ func (FakeDNSServer) Name() string {
|
|||
return "FakeDNS"
|
||||
}
|
||||
|
||||
func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, _ dns.IPOption, _ bool) ([]net.IP, error) {
|
||||
func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, opt dns.IPOption, _ bool) ([]net.IP, error) {
|
||||
if f.fakeDNSEngine == nil {
|
||||
if err := core.RequireFeatures(ctx, func(fd dns.FakeDNSEngine) {
|
||||
f.fakeDNSEngine = fd
|
||||
|
|
@ -28,7 +28,12 @@ func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, _
|
|||
return nil, newError("Unable to locate a fake DNS Engine").Base(err).AtError()
|
||||
}
|
||||
}
|
||||
ips := f.fakeDNSEngine.GetFakeIPForDomain(domain)
|
||||
var ips []net.Address
|
||||
if fkr0, ok := f.fakeDNSEngine.(dns.FakeDNSEngineRev0); ok {
|
||||
ips = fkr0.GetFakeIPForDomain3(domain, opt.IPv4Enable, opt.IPv6Enable)
|
||||
} else {
|
||||
ips = f.fakeDNSEngine.GetFakeIPForDomain(domain)
|
||||
}
|
||||
|
||||
netIP, err := toNetIP(ips)
|
||||
if err != nil {
|
||||
|
|
@ -37,5 +42,8 @@ func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ net.IP, _
|
|||
|
||||
newError(f.Name(), " got answer: ", domain, " -> ", ips).AtInfo().WriteToLog()
|
||||
|
||||
return netIP, nil
|
||||
if len(netIP) > 0 {
|
||||
return netIP, nil
|
||||
}
|
||||
return nil, dns.ErrEmptyResponse
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue