core

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 Go to latest Published: May 27, 2018 License: MIT Imports: 20 Imported by: 0

README

Project V

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Project V is a set of network tools that help you to build your own computer network. It secures your network connections and thus protects your privacy. See our website for more information.

License

The MIT License (MIT)

Credits

This repo relies on the following third-party projects:

Documentation

Overview

Package core provides an entry point to use V2Ray core functionalities.

V2Ray makes it possible to accept incoming network connections with certain protocol, process the data, and send them through another connection with the same or a difference protocol on demand.

It may be configured to work with multiple protocols at the same time, and uses the internal router to tunnel through different inbound and outbound connections.

Index

Constants

View Source 
const GetMetadataFuncName = "GetPluginMetadata"

GetMetadataFuncName is the name of the function in the plugin to return PluginMetadata.

Variables

View Source 
var (
	// ErrNoClue is for the situation that existing information is not enough to make a decision. For example, Router may return this error when there is no suitable route.
	ErrNoClue = errors.New("not enough information for making a decision")
)

Functions

func ContextWithBufferPolicy 

func ContextWithBufferPolicy(ctx context.Context, p BufferPolicy) context.Context

func Dial 

func Dial(ctx context.Context, v *Instance, dest net.Destination) (net.Conn, error)

Dial provides an easy way for upstream caller to create net.Conn through V2Ray. It dispatches the request to the given destination by the given V2Ray instance. Since it is under a proxy context, the LocalAddr() and RemoteAddr() in returned net.Conn will not show real addresses being used for communication.

func LoadPlugins 

func LoadPlugins() error

LoadPlugins loads all possible plugins in the 'plugin' directory.

func RegisterConfigLoader 

func RegisterConfigLoader(format *ConfigFormat) error

RegisterConfigLoader add a new ConfigLoader.

func Version 

func Version() string

Version returns V2Ray's version as a string, in the form of "x.y.z" where x, y and z are numbers. ".z" part may be omitted in regular releases.

func VersionStatement 

func VersionStatement() []string

VersionStatement returns a list of strings representing the full version info.

Types

type BufferPolicy 

type BufferPolicy struct {
	// Size of buffer per connection, in bytes. -1 for unlimited buffer.
	PerConnection int32
}

BufferPolicy contains settings for internal buffer.

func BufferPolicyFromContext 

func BufferPolicyFromContext(ctx context.Context) BufferPolicy

type Config 

type Config struct {
	// Inbound handler configurations. Must have at least one item.
	Inbound []*InboundHandlerConfig `protobuf:"bytes,1,rep,name=inbound" json:"inbound,omitempty"`
	// Outbound handler configurations. Must have at least one item. The first item is used as default for routing.
	Outbound []*OutboundHandlerConfig `protobuf:"bytes,2,rep,name=outbound" json:"outbound,omitempty"`
	// App is for configurations of all features in V2Ray. A feature must implement the Feature interface, and its config type must be registered through common.RegisterConfig.
	App []*serial.TypedMessage `protobuf:"bytes,4,rep,name=app" json:"app,omitempty"`
	// Transport settings.
	Transport *transport.Config `protobuf:"bytes,5,opt,name=transport" json:"transport,omitempty"`
	// Configuration for extensions. The config may not work if corresponding extension is not loaded into V2Ray.
	// V2Ray will ignore such config during initialization.
	Extension            []*serial.TypedMessage `protobuf:"bytes,6,rep,name=extension" json:"extension,omitempty"`
	XXX_NoUnkeyedLiteral struct{}               `json:"-"`
	XXX_unrecognized     []byte                 `json:"-"`
	XXX_sizecache        int32                  `json:"-"`
}

Config is the master config of V2Ray. V2Ray takes this config as input and functions accordingly.

func LoadConfig 

func LoadConfig(formatName string, filename string, input io.Reader) (*Config, error)

LoadConfig loads config with given format from given source.

func (*Config) Descriptor 

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

func (*Config) GetApp 

func (m *Config) GetApp() []*serial.TypedMessage

func (*Config) GetExtension 

func (m *Config) GetExtension() []*serial.TypedMessage

func (*Config) GetInbound 

func (m *Config) GetInbound() []*InboundHandlerConfig

func (*Config) GetOutbound 

func (m *Config) GetOutbound() []*OutboundHandlerConfig

func (*Config) GetTransport 

func (m *Config) GetTransport() *transport.Config

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 (dst *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 ConfigFormat 

type ConfigFormat struct {
	Name      string
	Extension []string
	Loader    ConfigLoader
}

ConfigFormat is a configurable format of V2Ray config file.

type ConfigLoader 

type ConfigLoader func(input io.Reader) (*Config, error)

ConfigLoader is a utility to load V2Ray config from external source.

type DNSClient 

type DNSClient interface {
	Feature
	LookupIP(host string) ([]net.IP, error)
}

DNSClient is a V2Ray feature for querying DNS information.

type Dispatcher 

type Dispatcher interface {
	Feature

	// Dispatch returns a Ray for transporting data for the given request.
	Dispatch(ctx context.Context, dest net.Destination) (*Link, error)
}

Dispatcher is a feature that dispatches inbound requests to outbound handlers based on rules. Dispatcher is required to be registered in a V2Ray instance to make V2Ray function properly.

type Feature 

type Feature interface {
	common.Runnable
}

Feature is the interface for V2Ray features. All features must implement this interface. All existing features have an implementation in app directory. These features can be replaced by third-party ones.

type GetMetadataFunc 

type GetMetadataFunc func() PluginMetadata

GetMetadataFunc is the type of the function in the plugin to return PluginMetadata.

type InboundHandler 

type InboundHandler interface {
	common.Runnable
	// The tag of this handler.
	Tag() string

	// Deprecated. Do not use in new code.
	GetRandomInboundProxy() (interface{}, net.Port, int)
}

InboundHandler is the interface for handlers that process inbound connections.

type InboundHandlerConfig 

type InboundHandlerConfig struct {
	// Tag of the inbound handler. The tag must be unique among all inbound handlers
	Tag string `protobuf:"bytes,1,opt,name=tag" json:"tag,omitempty"`
	// Settings for how this inbound proxy is handled.
	ReceiverSettings *serial.TypedMessage `protobuf:"bytes,2,opt,name=receiver_settings,json=receiverSettings" json:"receiver_settings,omitempty"`
	// Settings for inbound proxy. Must be one of the inbound proxies.
	ProxySettings        *serial.TypedMessage `protobuf:"bytes,3,opt,name=proxy_settings,json=proxySettings" json:"proxy_settings,omitempty"`
	XXX_NoUnkeyedLiteral struct{}             `json:"-"`
	XXX_unrecognized     []byte               `json:"-"`
	XXX_sizecache        int32                `json:"-"`
}

InboundHandlerConfig is the configuration for inbound handler.

func (*InboundHandlerConfig) Descriptor 

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

func (*InboundHandlerConfig) GetProxySettings 

func (m *InboundHandlerConfig) GetProxySettings() *serial.TypedMessage

func (*InboundHandlerConfig) GetReceiverSettings 

func (m *InboundHandlerConfig) GetReceiverSettings() *serial.TypedMessage

func (*InboundHandlerConfig) GetTag 

func (m *InboundHandlerConfig) GetTag() string

func (*InboundHandlerConfig) ProtoMessage 

func (*InboundHandlerConfig) ProtoMessage()

func (*InboundHandlerConfig) Reset 

func (m *InboundHandlerConfig) Reset()

func (*InboundHandlerConfig) String 

func (m *InboundHandlerConfig) String() string

func (*InboundHandlerConfig) XXX_DiscardUnknown 

func (m *InboundHandlerConfig) XXX_DiscardUnknown()

func (*InboundHandlerConfig) XXX_Marshal 

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

func (*InboundHandlerConfig) XXX_Merge 

func (dst *InboundHandlerConfig) XXX_Merge(src proto.Message)

func (*InboundHandlerConfig) XXX_Size 

func (m *InboundHandlerConfig) XXX_Size() int

func (*InboundHandlerConfig) XXX_Unmarshal 

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

type InboundHandlerManager 

type InboundHandlerManager interface {
	Feature
	// GetHandlers returns an InboundHandler for the given tag.
	GetHandler(ctx context.Context, tag string) (InboundHandler, error)
	// AddHandler adds the given handler into this InboundHandlerManager.
	AddHandler(ctx context.Context, handler InboundHandler) error

	// RemoveHandler removes a handler from InboundHandlerManager.
	RemoveHandler(ctx context.Context, tag string) error
}

InboundHandlerManager is a feature that manages InboundHandlers.

type Instance 

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

Instance combines all functionalities in V2Ray.

func FromContext 

func FromContext(ctx context.Context) *Instance

FromContext returns an Instance from the given context, or nil if the context doesn't contain one.

func MustFromContext 

func MustFromContext(ctx context.Context) *Instance

MustFromContext returns an Instance from the given context, or panics if not present.

func New 

func New(config *Config) (*Instance, error)

New returns a new V2Ray instance based on given configuration. The instance is not started at this point. To ensure V2Ray instance works properly, the config must contain one Dispatcher, one InboundHandlerManager and one OutboundHandlerManager. Other features are optional.

func (*Instance) Close 

func (s *Instance) Close() error

Close shutdown the V2Ray instance.

func (*Instance) CreateObject 

func (s *Instance) CreateObject(config interface{}) (interface{}, error)

func (*Instance) DNSClient 

func (s *Instance) DNSClient() DNSClient

DNSClient returns the DNSClient used by this Instance. The returned DNSClient is always functional.

func (*Instance) Dispatcher 

func (s *Instance) Dispatcher() Dispatcher

Dispatcher returns the Dispatcher used by this Instance. If Dispatcher was not registered before, the returned value doesn't work, although it is not nil.

func (*Instance) GetFeature 

func (s *Instance) GetFeature(featureType interface{}) Feature

GetFeature returns a feature that was registered in this Instance. Nil if not found. The returned Feature must implement common.HasType and whose type equals to the given feature type.

func (*Instance) ID 

func (s *Instance) ID() uuid.UUID

ID returns a unique ID for this V2Ray instance.

func (*Instance) InboundHandlerManager 

func (s *Instance) InboundHandlerManager() InboundHandlerManager

InboundHandlerManager returns the InboundHandlerManager used by this Instance. If InboundHandlerManager was not registered before, the returned value doesn't work.

func (*Instance) OutboundHandlerManager 

func (s *Instance) OutboundHandlerManager() OutboundHandlerManager

OutboundHandlerManager returns the OutboundHandlerManager used by this Instance. If OutboundHandlerManager was not registered before, the returned value doesn't work.

func (*Instance) PolicyManager 

func (s *Instance) PolicyManager() PolicyManager

PolicyManager returns the PolicyManager used by this Instance. The returned PolicyManager is always functional.

func (*Instance) RegisterFeature 

func (s *Instance) RegisterFeature(feature interface{}, instance Feature) error

RegisterFeature registers the given feature into V2Ray. If feature is one of the following types, the corresponding feature in this Instance will be replaced: DNSClient, PolicyManager, Router, Dispatcher, InboundHandlerManager, OutboundHandlerManager.

func (*Instance) Router 

func (s *Instance) Router() Router

Router returns the Router used by this Instance. The returned Router is always functional.

func (*Instance) Start 

func (s *Instance) Start() error

Start starts the V2Ray instance, including all registered features. When Start returns error, the state of the instance is unknown. A V2Ray instance can be started only once. Upon closing, the instance is not guaranteed to start again.

func (*Instance) Stats 

func (s *Instance) Stats() StatManager

Stats returns the StatManager used by this Instance. If StatManager was not registered before, the returned value doesn't work. 

type Link struct {
	Reader buf.Reader
	Writer buf.Writer
}

Link is a utility for connecting between an inbound and an outbound proxy handler.

type OutboundHandler 

type OutboundHandler interface {
	common.Runnable
	Tag() string
	Dispatch(ctx context.Context, link *Link)
}

OutboundHandler is the interface for handlers that process outbound connections.

type OutboundHandlerConfig 

type OutboundHandlerConfig struct {
	// Tag of this outbound handler.
	Tag string `protobuf:"bytes,1,opt,name=tag" json:"tag,omitempty"`
	// Settings for how to dial connection for this outbound handler.
	SenderSettings *serial.TypedMessage `protobuf:"bytes,2,opt,name=sender_settings,json=senderSettings" json:"sender_settings,omitempty"`
	// Settings for this outbound proxy. Must be one of the outbound proxies.
	ProxySettings *serial.TypedMessage `protobuf:"bytes,3,opt,name=proxy_settings,json=proxySettings" json:"proxy_settings,omitempty"`
	// If not zero, this outbound will be expired in seconds. Not used for now.
	Expire int64 `protobuf:"varint,4,opt,name=expire" json:"expire,omitempty"`
	// Comment of this outbound handler. Not used for now.
	Comment              string   `protobuf:"bytes,5,opt,name=comment" json:"comment,omitempty"`
	XXX_NoUnkeyedLiteral struct{} `json:"-"`
	XXX_unrecognized     []byte   `json:"-"`
	XXX_sizecache        int32    `json:"-"`
}

OutboundHandlerConfig is the configuration for outbound handler.

func (*OutboundHandlerConfig) Descriptor 

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

func (*OutboundHandlerConfig) GetComment 

func (m *OutboundHandlerConfig) GetComment() string

func (*OutboundHandlerConfig) GetExpire 

func (m *OutboundHandlerConfig) GetExpire() int64

func (*OutboundHandlerConfig) GetProxySettings 

func (m *OutboundHandlerConfig) GetProxySettings() *serial.TypedMessage

func (*OutboundHandlerConfig) GetSenderSettings 

func (m *OutboundHandlerConfig) GetSenderSettings() *serial.TypedMessage

func (*OutboundHandlerConfig) GetTag 

func (m *OutboundHandlerConfig) GetTag() string

func (*OutboundHandlerConfig) ProtoMessage 

func (*OutboundHandlerConfig) ProtoMessage()

func (*OutboundHandlerConfig) Reset 

func (m *OutboundHandlerConfig) Reset()

func (*OutboundHandlerConfig) String 

func (m *OutboundHandlerConfig) String() string

func (*OutboundHandlerConfig) XXX_DiscardUnknown 

func (m *OutboundHandlerConfig) XXX_DiscardUnknown()

func (*OutboundHandlerConfig) XXX_Marshal 

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

func (*OutboundHandlerConfig) XXX_Merge 

func (dst *OutboundHandlerConfig) XXX_Merge(src proto.Message)

func (*OutboundHandlerConfig) XXX_Size 

func (m *OutboundHandlerConfig) XXX_Size() int

func (*OutboundHandlerConfig) XXX_Unmarshal 

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

type OutboundHandlerManager 

type OutboundHandlerManager interface {
	Feature
	// GetHandler returns an OutboundHandler for the given tag.
	GetHandler(tag string) OutboundHandler
	// GetDefaultHandler returns the default OutboundHandler. It is usually the first OutboundHandler specified in the configuration.
	GetDefaultHandler() OutboundHandler
	// AddHandler adds a handler into this OutboundHandlerManager.
	AddHandler(ctx context.Context, handler OutboundHandler) error

	// RemoveHandler removes a handler from OutboundHandlerManager.
	RemoveHandler(ctx context.Context, tag string) error
}

OutboundHandlerManager is a feature that manages OutboundHandlers.

type PluginMetadata 

type PluginMetadata struct {
	// Name of the plugin
	Name string
}

PluginMetadata contains some brief information regarding a plugin.

type Policy 

type Policy struct {
	Timeouts TimeoutPolicy // Timeout settings
	Stats    StatsPolicy
	Buffer   BufferPolicy
}

Policy is session based settings for controlling V2Ray requests. It contains various settings (or limits) that may differ for different users in the context.

func DefaultPolicy 

func DefaultPolicy() Policy

DefaultPolicy returns the Policy when user is not specified.

type PolicyManager 

type PolicyManager interface {
	Feature

	// ForLevel returns the Policy for the given user level.
	ForLevel(level uint32) Policy

	// ForSystem returns the Policy for V2Ray system.
	ForSystem() SystemPolicy
}

PolicyManager is a feature that provides Policy for the given user by its id or level.

type Router 

type Router interface {
	Feature

	// PickRoute returns a tag of an OutboundHandler based on the given context.
	PickRoute(ctx context.Context) (string, error)
}

Router is a feature to choose an outbound tag for the given request.

type Server 

type Server interface {
	common.Runnable
}

Server is an instance of V2Ray. At any time, there must be at most one Server instance running. Deprecated. Use Instance directly.

type StatCounter 

type StatCounter interface {
	Value() int64
	Set(int64) int64
	Add(int64) int64
}

func GetOrRegisterStatCounter 

func GetOrRegisterStatCounter(m StatManager, name string) (StatCounter, error)

GetOrRegisterStatCounter tries to get the StatCounter first. If not exist, it then tries to create a new counter.

type StatManager 

type StatManager interface {
	Feature

	RegisterCounter(string) (StatCounter, error)
	GetCounter(string) StatCounter
}

type StatsPolicy 

type StatsPolicy struct {
	// Whether or not to enable stat counter for user uplink traffic.
	UserUplink bool
	// Whether or not to enable stat counter for user downlink traffic.
	UserDownlink bool
}

StatsPolicy contains settings for stats counters.

type SystemPolicy 

type SystemPolicy struct {
	Stats  SystemStatsPolicy
	Buffer BufferPolicy
}

type SystemStatsPolicy 

type SystemStatsPolicy struct {
	// Whether or not to enable stat counter for uplink traffic in inbound handlers.
	InboundUplink bool
	// Whether or not to enable stat counter for downlink traffic in inbound handlers.
	InboundDownlink bool
}

type TimeoutPolicy 

type TimeoutPolicy struct {
	// Timeout for handshake phase in a connection.
	Handshake time.Duration
	// Timeout for connection being idle, i.e., there is no egress or ingress traffic in this connection.
	ConnectionIdle time.Duration
	// Timeout for an uplink only connection, i.e., the downlink of the connection has been closed.
	UplinkOnly time.Duration
	// Timeout for an downlink only connection, i.e., the uplink of the connection has been closed.
	DownlinkOnly time.Duration
}

TimeoutPolicy contains limits for connection timeout.

Source Files

View all Source files

Directories

Path Synopsis
app
commander
dispatcher
dns
Package dns is an implementation of core.DNS feature.
 Package dns is an implementation of core.DNS feature.
log
log/command
policy
Package policy is an implementation of core.PolicyManager feature.
 Package policy is an implementation of core.PolicyManager feature.
proxyman
Package proxyman defines applications for managing inbound and outbound proxies.
 Package proxyman defines applications for managing inbound and outbound proxies.
proxyman/command
proxyman/inbound
proxyman/mux
proxyman/outbound
router
stats
stats/command
Package common contains common utilities that are shared among other packages.
 Package common contains common utilities that are shared among other packages.
bitmask
buf
Package buf provides a light-weight memory allocation mechanism.
 Package buf provides a light-weight memory allocation mechanism.
crypto
Package crypto provides common crypto libraries for V2Ray.
 Package crypto provides common crypto libraries for V2Ray.
crypto/internal
dice
Package dice contains common functions to generate random number.
 Package dice contains common functions to generate random number.
errors
Package errors is a drop-in replacement for Golang lib 'errors'.
 Package errors is a drop-in replacement for Golang lib 'errors'.
errors/errorgen
log
net
Package net is a drop-in replacement to Golang's net package, with some more functionalities.
 Package net is a drop-in replacement to Golang's net package, with some more functionalities.
net/testing
platform
platform/ctlcmd
predicate
protocol
protocol/http
protocol/tls/cert
retry
serial
session
Package session provides functions for sessions of incoming requests.
 Package session provides functions for sessions of incoming requests.
signal
signal/done
signal/semaphore
stats
task
uuid
confloader
confloader/external
distro/all
distro/debug
json
jsonem
Package proxy contains all proxies used by V2Ray.
 Package proxy contains all proxies used by V2Ray.
blackhole
Package blackhole is an outbound handler that blocks all connections.
 Package blackhole is an outbound handler that blocks all connections.
dokodemo
freedom
http
shadowsocks
Package shadowsocks provides compatible functionality to Shadowsocks.
 Package shadowsocks provides compatible functionality to Shadowsocks.
socks
Package socks provides implements of Socks protocol 4, 4a and 5.
 Package socks provides implements of Socks protocol 4, 4a and 5.
vmess
Package vmess contains the implementation of VMess protocol and transportation.
 Package vmess contains the implementation of VMess protocol and transportation.
vmess/encoding
vmess/inbound
vmess/outbound
testing
scenarios
servers/http
servers/tcp
servers/udp
internet
internet/domainsocket
internet/headers/http
internet/headers/noop
internet/headers/srtp
internet/headers/tls
internet/headers/utp
internet/headers/wechat
internet/http
internet/kcp
Package kcp - A Fast and Reliable ARQ Protocol Acknowledgement: skywind3000@github for inventing the KCP protocol xtaci@github for translating to Golang
 Package kcp - A Fast and Reliable ARQ Protocol Acknowledgement: skywind3000@github for inventing the KCP protocol xtaci@github for translating to Golang
internet/tcp
internet/tls
internet/udp
internet/websocket
Package websocket implements Websocket transport Websocket transport implements an HTTP(S) compliable, surveillance proof transport method with plausible deniability.
 Package websocket implements Websocket transport Websocket transport implements an HTTP(S) compliable, surveillance proof transport method with plausible deniability.
pipe

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