mirror of
https://github.com/XTLS/Xray-core.git
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017f53b5fc
* Add session context outbounds as slice slice is needed for dialer proxy where two outbounds work on top of each other There are two sets of target addr for example It also enable Xtls to correctly do splice copy by checking both outbounds are ready to do direct copy * Fill outbound tag info * Splice now checks capalibility from all outbounds * Fix unit tests
119 lines
3.3 KiB
Go
119 lines
3.3 KiB
Go
// Package session provides functions for sessions of incoming requests.
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package session // import "github.com/xtls/xray-core/common/session"
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import (
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"context"
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"math/rand"
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"github.com/xtls/xray-core/common/errors"
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"github.com/xtls/xray-core/common/net"
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"github.com/xtls/xray-core/common/protocol"
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"github.com/xtls/xray-core/common/signal"
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)
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// ID of a session.
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type ID uint32
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// NewID generates a new ID. The generated ID is high likely to be unique, but not cryptographically secure.
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// The generated ID will never be 0.
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func NewID() ID {
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for {
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id := ID(rand.Uint32())
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if id != 0 {
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return id
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}
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}
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}
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// ExportIDToError transfers session.ID into an error object, for logging purpose.
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// This can be used with error.WriteToLog().
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func ExportIDToError(ctx context.Context) errors.ExportOption {
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id := IDFromContext(ctx)
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return func(h *errors.ExportOptionHolder) {
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h.SessionID = uint32(id)
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}
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}
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// Inbound is the metadata of an inbound connection.
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type Inbound struct {
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// Source address of the inbound connection.
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Source net.Destination
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// Gateway address.
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Gateway net.Destination
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// Tag of the inbound proxy that handles the connection.
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Tag string
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// Name of the inbound proxy that handles the connection.
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Name string
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// User is the user that authenticates for the inbound. May be nil if the protocol allows anonymous traffic.
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User *protocol.MemoryUser
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// Conn is actually internet.Connection. May be nil.
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Conn net.Conn
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// Timer of the inbound buf copier. May be nil.
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Timer *signal.ActivityTimer
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// CanSpliceCopy is a property for this connection
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// 1 = can, 2 = after processing protocol info should be able to, 3 = cannot
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CanSpliceCopy int
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}
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// Outbound is the metadata of an outbound connection.
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type Outbound struct {
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// Target address of the outbound connection.
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OriginalTarget net.Destination
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Target net.Destination
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RouteTarget net.Destination
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// Gateway address
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Gateway net.Address
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// Tag of the outbound proxy that handles the connection.
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Tag string
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// Name of the outbound proxy that handles the connection.
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Name string
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// Conn is actually internet.Connection. May be nil. It is currently nil for outbound with proxySettings
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Conn net.Conn
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// CanSpliceCopy is a property for this connection
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// 1 = can, 2 = after processing protocol info should be able to, 3 = cannot
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CanSpliceCopy int
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}
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// SniffingRequest controls the behavior of content sniffing.
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type SniffingRequest struct {
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ExcludeForDomain []string
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OverrideDestinationForProtocol []string
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Enabled bool
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MetadataOnly bool
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RouteOnly bool
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}
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// Content is the metadata of the connection content.
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type Content struct {
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// Protocol of current content.
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Protocol string
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SniffingRequest SniffingRequest
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Attributes map[string]string
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SkipDNSResolve bool
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}
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// Sockopt is the settings for socket connection.
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type Sockopt struct {
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// Mark of the socket connection.
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Mark int32
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}
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// SetAttribute attaches additional string attributes to content.
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func (c *Content) SetAttribute(name string, value string) {
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if c.Attributes == nil {
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c.Attributes = make(map[string]string)
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}
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c.Attributes[name] = value
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}
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// Attribute retrieves additional string attributes from content.
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func (c *Content) Attribute(name string) string {
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if c.Attributes == nil {
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return ""
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}
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return c.Attributes[name]
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}
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