dns

package
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 Go to latest Published: Apr 6, 2020 License: MIT Imports: 34 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",
}
View Source 
var DomainMatchingType_value = map[string]int32{
	"Full":      0,
	"Subdomain": 1,
	"Keyword":   2,
	"Regex":     3,
}

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 

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.
	NameServers []*net.Endpoint `protobuf:"bytes,1,rep,name=NameServers,proto3" json:"NameServers,omitempty"` // Deprecated: Do not use.
	// 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.
	Hosts map[string]*net.IPOrDomain `` // Deprecated: Do not use.
	/* 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"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

func (*Config) Descriptor 

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

func (*Config) GetClientIp 

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

func (*Config) GetHosts deprecated 

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

Deprecated: Do not use.

func (*Config) GetNameServer 

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

func (*Config) GetNameServers deprecated 

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

Deprecated: Do not use.

func (*Config) GetStaticHosts 

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

func (*Config) GetTag 

func (m *Config) GetTag() string

func (*Config) ProtoMessage 

func (*Config) ProtoMessage()

func (*Config) Reset 

func (m *Config) Reset()

func (*Config) String 

func (m *Config) String() string

func (*Config) XXX_DiscardUnknown 

func (m *Config) XXX_DiscardUnknown()

func (*Config) XXX_Marshal 

func (m *Config) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Config) XXX_Merge 

func (m *Config) XXX_Merge(src proto.Message)

func (*Config) XXX_Size 

func (m *Config) XXX_Size() int

func (*Config) XXX_Unmarshal 

func (m *Config) XXX_Unmarshal(b []byte) error

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"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

func (*Config_HostMapping) Descriptor 

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

func (*Config_HostMapping) GetDomain 

func (m *Config_HostMapping) GetDomain() string

func (*Config_HostMapping) GetIp 

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

func (*Config_HostMapping) GetProxiedDomain 

func (m *Config_HostMapping) GetProxiedDomain() string

func (*Config_HostMapping) GetType 

func (m *Config_HostMapping) GetType() DomainMatchingType

func (*Config_HostMapping) ProtoMessage 

func (*Config_HostMapping) ProtoMessage()

func (*Config_HostMapping) Reset 

func (m *Config_HostMapping) Reset()

func (*Config_HostMapping) String 

func (m *Config_HostMapping) String() string

func (*Config_HostMapping) XXX_DiscardUnknown 

func (m *Config_HostMapping) XXX_DiscardUnknown()

func (*Config_HostMapping) XXX_Marshal 

func (m *Config_HostMapping) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*Config_HostMapping) XXX_Merge 

func (m *Config_HostMapping) XXX_Merge(src proto.Message)

func (*Config_HostMapping) XXX_Size 

func (m *Config_HostMapping) XXX_Size() int

func (*Config_HostMapping) XXX_Unmarshal 

func (m *Config_HostMapping) XXX_Unmarshal(b []byte) error

type DoHNameServer 

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

DoHNameServer implimented DNS over HTTPS (RFC8484) Wire Format, which is compatiable with traditional dns over udp(RFC1035), thus most of the DOH implimentation 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 DomainMatchingType 

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

func (DomainMatchingType) EnumDescriptor 

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

func (DomainMatchingType) String 

func (x DomainMatchingType) String() string

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 

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"`
	XXX_NoUnkeyedLiteral struct{}                     `json:"-"`
	XXX_unrecognized     []byte                       `json:"-"`
	XXX_sizecache        int32                        `json:"-"`
}

func (*NameServer) Descriptor 

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

func (*NameServer) GetAddress 

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

func (*NameServer) GetGeoip 

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

func (*NameServer) GetPrioritizedDomain 

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

func (*NameServer) ProtoMessage 

func (*NameServer) ProtoMessage()

func (*NameServer) Reset 

func (m *NameServer) Reset()

func (*NameServer) String 

func (m *NameServer) String() string

func (*NameServer) XXX_DiscardUnknown 

func (m *NameServer) XXX_DiscardUnknown()

func (*NameServer) XXX_Marshal 

func (m *NameServer) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*NameServer) XXX_Merge 

func (m *NameServer) XXX_Merge(src proto.Message)

func (*NameServer) XXX_Size 

func (m *NameServer) XXX_Size() int

func (*NameServer) XXX_Unmarshal 

func (m *NameServer) XXX_Unmarshal(b []byte) error

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"`
	XXX_NoUnkeyedLiteral struct{}           `json:"-"`
	XXX_unrecognized     []byte             `json:"-"`
	XXX_sizecache        int32              `json:"-"`
}

func (*NameServer_PriorityDomain) Descriptor 

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

func (*NameServer_PriorityDomain) GetDomain 

func (m *NameServer_PriorityDomain) GetDomain() string

func (*NameServer_PriorityDomain) GetType 

func (m *NameServer_PriorityDomain) GetType() DomainMatchingType

func (*NameServer_PriorityDomain) ProtoMessage 

func (*NameServer_PriorityDomain) ProtoMessage()

func (*NameServer_PriorityDomain) Reset 

func (m *NameServer_PriorityDomain) Reset()

func (*NameServer_PriorityDomain) String 

func (m *NameServer_PriorityDomain) String() string

func (*NameServer_PriorityDomain) XXX_DiscardUnknown 

func (m *NameServer_PriorityDomain) XXX_DiscardUnknown()

func (*NameServer_PriorityDomain) XXX_Marshal 

func (m *NameServer_PriorityDomain) XXX_Marshal(b []byte, deterministic bool) ([]byte, error)

func (*NameServer_PriorityDomain) XXX_Merge 

func (m *NameServer_PriorityDomain) XXX_Merge(src proto.Message)

func (*NameServer_PriorityDomain) XXX_Size 

func (m *NameServer_PriorityDomain) XXX_Size() int

func (*NameServer_PriorityDomain) XXX_Unmarshal 

func (m *NameServer_PriorityDomain) XXX_Unmarshal(b []byte) error

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) ([]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 uint32, 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.

Source Files

View all Source files

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