dns

package
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 Go to latest Published: Sep 16, 2021 License: MPL-2.0 Imports: 38 Imported by: 0

Documentation

Overview

Package dns is an implementation of core.DNS feature.

Index

Constants

This section is empty.

Variables

View Source 
var (
	DomainMatchingType_name = map[int32]string{
		0: "Full",
		1: "Subdomain",
		2: "Keyword",
		3: "Regex",
	}
	DomainMatchingType_value = map[string]int32{
		"Full":      0,
		"Subdomain": 1,
		"Keyword":   2,
		"Regex":     3,
	}
)

Enum value maps for DomainMatchingType.

View Source 
var File_app_dns_config_proto protoreflect.FileDescriptor

Functions

func Fqdn 

func Fqdn(domain string) string

Fqdn normalize domain make sure it ends with '.'

Types

type ClassicNameServer 

type ClassicNameServer struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

func NewClassicNameServer 

func NewClassicNameServer(address net.Destination, dispatcher routing.Dispatcher, clientIP net.IP) *ClassicNameServer

func (*ClassicNameServer) Cleanup 

func (s *ClassicNameServer) Cleanup() error

func (*ClassicNameServer) HandleResponse 

func (s *ClassicNameServer) HandleResponse(ctx context.Context, packet *udp_proto.Packet)

func (*ClassicNameServer) Name 

func (s *ClassicNameServer) Name() string

func (*ClassicNameServer) QueryIP 

func (s *ClassicNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, error)

QueryIP implements Server.

type Client 

type Client interface {
	// Name of the Client.
	Name() string

	// QueryIP sends IP queries to its configured server.
	QueryIP(ctx context.Context, domain string, option dns.IPOption) ([]net.IP, error)
}

Client is the interface for DNS client.

type Config 

type Config struct {

	// Nameservers used by this DNS. Only traditional UDP servers are support at
	// the moment. A special value 'localhost' as a domain address can be set to
	// use DNS on local system.
	//
	// Deprecated: Do not use.
	NameServers []*net.Endpoint `protobuf:"bytes,1,rep,name=NameServers,proto3" json:"NameServers,omitempty"`
	// NameServer list used by this DNS client.
	NameServer []*NameServer `protobuf:"bytes,5,rep,name=name_server,json=nameServer,proto3" json:"name_server,omitempty"`
	// Static hosts. Domain to IP.
	// Deprecated. Use static_hosts.
	//
	// Deprecated: Do not use.
	Hosts map[string]*net.IPOrDomain `` /* 151-byte string literal not displayed */
	// Client IP for EDNS client subnet. Must be 4 bytes (IPv4) or 16 bytes
	// (IPv6).
	ClientIp    []byte                `protobuf:"bytes,3,opt,name=client_ip,json=clientIp,proto3" json:"client_ip,omitempty"`
	StaticHosts []*Config_HostMapping `protobuf:"bytes,4,rep,name=static_hosts,json=staticHosts,proto3" json:"static_hosts,omitempty"`
	// Tag is the inbound tag of DNS client.
	Tag string `protobuf:"bytes,6,opt,name=tag,proto3" json:"tag,omitempty"`
	// contains filtered or unexported fields
}

func (*Config) Descriptor deprecated 

func (*Config) Descriptor() ([]byte, []int)

Deprecated: Use Config.ProtoReflect.Descriptor instead.

func (*Config) GetClientIp 

func (x *Config) GetClientIp() []byte

func (*Config) GetHosts deprecated 

func (x *Config) GetHosts() map[string]*net.IPOrDomain

Deprecated: Do not use.

func (*Config) GetNameServer 

func (x *Config) GetNameServer() []*NameServer

func (*Config) GetNameServers deprecated 

func (x *Config) GetNameServers() []*net.Endpoint

Deprecated: Do not use.

func (*Config) GetStaticHosts 

func (x *Config) GetStaticHosts() []*Config_HostMapping

func (*Config) GetTag 

func (x *Config) GetTag() string

func (*Config) ProtoMessage 

func (*Config) ProtoMessage()

func (*Config) ProtoReflect 

func (x *Config) ProtoReflect() protoreflect.Message

func (*Config) Reset 

func (x *Config) Reset()

func (*Config) String 

func (x *Config) String() string

type Config_HostMapping 

type Config_HostMapping struct {
	Type   DomainMatchingType `protobuf:"varint,1,opt,name=type,proto3,enum=xray.app.dns.DomainMatchingType" json:"type,omitempty"`
	Domain string             `protobuf:"bytes,2,opt,name=domain,proto3" json:"domain,omitempty"`
	Ip     [][]byte           `protobuf:"bytes,3,rep,name=ip,proto3" json:"ip,omitempty"`
	// ProxiedDomain indicates the mapped domain has the same IP address on this
	// domain. Xray will use this domain for IP queries. This field is only
	// effective if ip is empty.
	ProxiedDomain string `protobuf:"bytes,4,opt,name=proxied_domain,json=proxiedDomain,proto3" json:"proxied_domain,omitempty"`
	// contains filtered or unexported fields
}

func (*Config_HostMapping) Descriptor deprecated 

func (*Config_HostMapping) Descriptor() ([]byte, []int)

Deprecated: Use Config_HostMapping.ProtoReflect.Descriptor instead.

func (*Config_HostMapping) GetDomain 

func (x *Config_HostMapping) GetDomain() string

func (*Config_HostMapping) GetIp 

func (x *Config_HostMapping) GetIp() [][]byte

func (*Config_HostMapping) GetProxiedDomain 

func (x *Config_HostMapping) GetProxiedDomain() string

func (*Config_HostMapping) GetType 

func (x *Config_HostMapping) GetType() DomainMatchingType

func (*Config_HostMapping) ProtoMessage 

func (*Config_HostMapping) ProtoMessage()

func (*Config_HostMapping) ProtoReflect 

func (x *Config_HostMapping) ProtoReflect() protoreflect.Message

func (*Config_HostMapping) Reset 

func (x *Config_HostMapping) Reset()

func (*Config_HostMapping) String 

func (x *Config_HostMapping) String() string

type DoHNameServer 

type DoHNameServer struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

DoHNameServer implemented DNS over HTTPS (RFC8484) Wire Format, which is compatible with traditional dns over udp(RFC1035), thus most of the DOH implementation is copied from udpns.go

func NewDoHLocalNameServer 

func NewDoHLocalNameServer(url *url.URL, clientIP net.IP) *DoHNameServer

NewDoHLocalNameServer creates DOH client object for local resolving

func NewDoHNameServer 

func NewDoHNameServer(url *url.URL, dispatcher routing.Dispatcher, clientIP net.IP) (*DoHNameServer, error)

NewDoHNameServer creates DOH client object for remote resolving

func (*DoHNameServer) Cleanup 

func (s *DoHNameServer) Cleanup() error

Cleanup clears expired items from cache

func (*DoHNameServer) Name 

func (s *DoHNameServer) Name() string

Name returns client name

func (*DoHNameServer) QueryIP 

func (s *DoHNameServer) QueryIP(ctx context.Context, domain string, option dns_feature.IPOption) ([]net.IP, error)

QueryIP is called from dns.Server->queryIPTimeout

type DomainMatcherInfo 

type DomainMatcherInfo struct {
	// contains filtered or unexported fields
}

DomainMatcherInfo contains information attached to index returned by Server.domainMatcher

type DomainMatchingType 

type DomainMatchingType int32
const (
	DomainMatchingType_Full      DomainMatchingType = 0
	DomainMatchingType_Subdomain DomainMatchingType = 1
	DomainMatchingType_Keyword   DomainMatchingType = 2
	DomainMatchingType_Regex     DomainMatchingType = 3
)

func (DomainMatchingType) Descriptor 

func (DomainMatchingType) Descriptor() protoreflect.EnumDescriptor

func (DomainMatchingType) Enum 

func (x DomainMatchingType) Enum() *DomainMatchingType

func (DomainMatchingType) EnumDescriptor deprecated 

func (DomainMatchingType) EnumDescriptor() ([]byte, []int)

Deprecated: Use DomainMatchingType.Descriptor instead.

func (DomainMatchingType) Number 

func (x DomainMatchingType) Number() protoreflect.EnumNumber

func (DomainMatchingType) String 

func (x DomainMatchingType) String() string

func (DomainMatchingType) Type 

func (DomainMatchingType) Type() protoreflect.EnumType

type FakeDNSServer 

type FakeDNSServer struct {
	// contains filtered or unexported fields
}

func NewFakeDNSServer 

func NewFakeDNSServer() *FakeDNSServer

func (FakeDNSServer) Name 

func (FakeDNSServer) Name() string

func (*FakeDNSServer) QueryIP 

func (f *FakeDNSServer) QueryIP(ctx context.Context, domain string, _ dns.IPOption) ([]net.IP, error)

type IPRecord 

type IPRecord struct {
	ReqID  uint16
	IP     []net.Address
	Expire time.Time
	RCode  dnsmessage.RCode
}

IPRecord is a cacheable item for a resolved domain

type LocalNameServer 

type LocalNameServer struct {
	// contains filtered or unexported fields
}

func NewLocalNameServer 

func NewLocalNameServer() *LocalNameServer

func (*LocalNameServer) Name 

func (s *LocalNameServer) Name() string

func (*LocalNameServer) QueryIP 

func (s *LocalNameServer) QueryIP(_ context.Context, domain string, option dns.IPOption) ([]net.IP, error)

type MultiGeoIPMatcher 

type MultiGeoIPMatcher struct {
	// contains filtered or unexported fields
}

MultiGeoIPMatcher for match

func (*MultiGeoIPMatcher) HasMatcher 

func (c *MultiGeoIPMatcher) HasMatcher() bool

HasMatcher check has matcher

func (*MultiGeoIPMatcher) Match 

func (c *MultiGeoIPMatcher) Match(ip net.IP) bool

Match check ip match

type NameServer 

type NameServer struct {
	Address           *net.Endpoint                `protobuf:"bytes,1,opt,name=address,proto3" json:"address,omitempty"`
	PrioritizedDomain []*NameServer_PriorityDomain `protobuf:"bytes,2,rep,name=prioritized_domain,json=prioritizedDomain,proto3" json:"prioritized_domain,omitempty"`
	Geoip             []*router.GeoIP              `protobuf:"bytes,3,rep,name=geoip,proto3" json:"geoip,omitempty"`
	OriginalRules     []*NameServer_OriginalRule   `protobuf:"bytes,4,rep,name=original_rules,json=originalRules,proto3" json:"original_rules,omitempty"`
	// contains filtered or unexported fields
}

func (*NameServer) Descriptor deprecated 

func (*NameServer) Descriptor() ([]byte, []int)

Deprecated: Use NameServer.ProtoReflect.Descriptor instead.

func (*NameServer) GetAddress 

func (x *NameServer) GetAddress() *net.Endpoint

func (*NameServer) GetGeoip 

func (x *NameServer) GetGeoip() []*router.GeoIP

func (*NameServer) GetOriginalRules 

func (x *NameServer) GetOriginalRules() []*NameServer_OriginalRule

func (*NameServer) GetPrioritizedDomain 

func (x *NameServer) GetPrioritizedDomain() []*NameServer_PriorityDomain

func (*NameServer) ProtoMessage 

func (*NameServer) ProtoMessage()

func (*NameServer) ProtoReflect 

func (x *NameServer) ProtoReflect() protoreflect.Message

func (*NameServer) Reset 

func (x *NameServer) Reset()

func (*NameServer) String 

func (x *NameServer) String() string

type NameServer_OriginalRule 

type NameServer_OriginalRule struct {
	Rule string `protobuf:"bytes,1,opt,name=rule,proto3" json:"rule,omitempty"`
	Size uint32 `protobuf:"varint,2,opt,name=size,proto3" json:"size,omitempty"`
	// contains filtered or unexported fields
}

func (*NameServer_OriginalRule) Descriptor deprecated 

func (*NameServer_OriginalRule) Descriptor() ([]byte, []int)

Deprecated: Use NameServer_OriginalRule.ProtoReflect.Descriptor instead.

func (*NameServer_OriginalRule) GetRule 

func (x *NameServer_OriginalRule) GetRule() string

func (*NameServer_OriginalRule) GetSize 

func (x *NameServer_OriginalRule) GetSize() uint32

func (*NameServer_OriginalRule) ProtoMessage 

func (*NameServer_OriginalRule) ProtoMessage()

func (*NameServer_OriginalRule) ProtoReflect 

func (x *NameServer_OriginalRule) ProtoReflect() protoreflect.Message

func (*NameServer_OriginalRule) Reset 

func (x *NameServer_OriginalRule) Reset()

func (*NameServer_OriginalRule) String 

func (x *NameServer_OriginalRule) String() string

type NameServer_PriorityDomain 

type NameServer_PriorityDomain struct {
	Type   DomainMatchingType `protobuf:"varint,1,opt,name=type,proto3,enum=xray.app.dns.DomainMatchingType" json:"type,omitempty"`
	Domain string             `protobuf:"bytes,2,opt,name=domain,proto3" json:"domain,omitempty"`
	// contains filtered or unexported fields
}

func (*NameServer_PriorityDomain) Descriptor deprecated 

func (*NameServer_PriorityDomain) Descriptor() ([]byte, []int)

Deprecated: Use NameServer_PriorityDomain.ProtoReflect.Descriptor instead.

func (*NameServer_PriorityDomain) GetDomain 

func (x *NameServer_PriorityDomain) GetDomain() string

func (*NameServer_PriorityDomain) GetType 

func (x *NameServer_PriorityDomain) GetType() DomainMatchingType

func (*NameServer_PriorityDomain) ProtoMessage 

func (*NameServer_PriorityDomain) ProtoMessage()

func (*NameServer_PriorityDomain) ProtoReflect 

func (x *NameServer_PriorityDomain) ProtoReflect() protoreflect.Message

func (*NameServer_PriorityDomain) Reset 

func (x *NameServer_PriorityDomain) Reset()

func (*NameServer_PriorityDomain) String 

func (x *NameServer_PriorityDomain) String() string

type Server 

type Server struct {
	sync.Mutex
	// contains filtered or unexported fields
}

Server is a DNS rely server.

func New 

func New(ctx context.Context, config *Config) (*Server, error)

New creates a new DNS server with given configuration.

func (*Server) Close 

func (s *Server) Close() error

Close implements common.Closable. 

func (s *Server) IsOwnLink(ctx context.Context) bool

func (*Server) LookupIP 

func (s *Server) LookupIP(domain string, option dns.IPOption) ([]net.IP, error)

LookupIP implements dns.Client.

func (*Server) Match 

func (s *Server) Match(idx int, client Client, domain string, ips []net.IP) ([]net.IP, error)

Match check dns ip match geoip

func (*Server) Start 

func (s *Server) Start() error

Start implements common.Runnable.

func (*Server) Type 

func (*Server) Type() interface{}

Type implements common.HasType.

type StaticHosts 

type StaticHosts struct {
	// contains filtered or unexported fields
}

StaticHosts represents static domain-ip mapping in DNS server.

func NewStaticHosts 

func NewStaticHosts(hosts []*Config_HostMapping, legacy map[string]*net.IPOrDomain) (*StaticHosts, error)

NewStaticHosts creates a new StaticHosts instance.

func (*StaticHosts) LookupIP 

func (h *StaticHosts) LookupIP(domain string, option dns.IPOption) []net.Address

LookupIP returns IP address for the given domain, if exists in this StaticHosts.

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