dns

package
Version: v4.31.2+incompatible Latest Latest
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Published: Nov 18, 2020 License: MIT Imports: 36 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 '.'

func NewLocalNameServer

func NewLocalNameServer() *localNameServer

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 IPOption) ([]net.IP, error)

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 IPOption) ([]net.IP, error)
}

Client is the interface for DNS client.

type Config added in v1.13.1

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

This method has been deprecated.
func (*Config) Descriptor() ([]byte, []int)

Deprecated: Use Config.ProtoReflect.Descriptor instead.

func (*Config) GetClientIp

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

func (*Config) GetHosts deprecated

This method has been 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

This method has been 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=v2ray.core.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. V2Ray 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

This method has been 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 (*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 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) Enum

func (DomainMatchingType) EnumDescriptor deprecated

This method has been deprecated.
func (DomainMatchingType) EnumDescriptor() ([]byte, []int)

Deprecated: Use DomainMatchingType.Descriptor instead.

func (DomainMatchingType) Number

func (DomainMatchingType) String

func (x DomainMatchingType) String() string

func (DomainMatchingType) Type

type IPOption

type IPOption struct {
	IPv4Enable bool
	IPv6Enable bool
}

IPOption is an object for IP query options.

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 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 added in v1.13.1

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

This method has been 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

This method has been 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=v2ray.core.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

This method has been 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 (*NameServer_PriorityDomain) ProtoMessage

func (*NameServer_PriorityDomain) ProtoMessage()

func (*NameServer_PriorityDomain) ProtoReflect

func (*NameServer_PriorityDomain) Reset

func (x *NameServer_PriorityDomain) Reset()

func (*NameServer_PriorityDomain) String

func (x *NameServer_PriorityDomain) String() string

type Server added in v1.13.1

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) ([]net.IP, error)

LookupIP implements dns.Client.

func (*Server) LookupIPv4

func (s *Server) LookupIPv4(domain string) ([]net.IP, error)

LookupIPv4 implements dns.IPv4Lookup.

func (*Server) LookupIPv6

func (s *Server) LookupIPv6(domain string) ([]net.IP, error)

LookupIPv6 implements dns.IPv6Lookup.

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 IPOption) []net.Address

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

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