sing-box/adapter/inbound.go
2024-12-21 19:39:56 +08:00

124 lines
2.7 KiB
Go

package adapter
import (
"context"
"net/netip"
"github.com/sagernet/sing-box/common/process"
"github.com/sagernet/sing-box/log"
"github.com/sagernet/sing-box/option"
M "github.com/sagernet/sing/common/metadata"
)
type Inbound interface {
Service
Type() string
Tag() string
}
type TCPInjectableInbound interface {
Inbound
ConnectionHandlerEx
}
type UDPInjectableInbound interface {
Inbound
PacketConnectionHandlerEx
}
type InboundRegistry interface {
option.InboundOptionsRegistry
CreateInbound(ctx context.Context, router Router, logger log.ContextLogger, tag string, outboundType string, options any) (Inbound, error)
}
type InboundContext struct {
Inbound string
InboundType string
IPVersion uint8
Network string
Source M.Socksaddr
Destination M.Socksaddr
User string
Outbound string
// sniffer
Protocol string
Domain string
Client string
SniffContext any
// cache
// Deprecated: implement in rule action
InboundDetour string
LastInbound string
OriginDestination M.Socksaddr
// Deprecated
InboundOptions option.InboundOptions
UDPDisableDomainUnmapping bool
UDPConnect bool
DNSServer string
DestinationAddresses []netip.Addr
SourceGeoIPCode string
GeoIPCode string
ProcessInfo *process.Info
QueryType uint16
FakeIP bool
// rule cache
IPCIDRMatchSource bool
IPCIDRAcceptEmpty bool
SourceAddressMatch bool
SourcePortMatch bool
DestinationAddressMatch bool
DestinationPortMatch bool
DidMatch bool
IgnoreDestinationIPCIDRMatch bool
}
func (c *InboundContext) ResetRuleCache() {
c.IPCIDRMatchSource = false
c.IPCIDRAcceptEmpty = false
c.SourceAddressMatch = false
c.SourcePortMatch = false
c.DestinationAddressMatch = false
c.DestinationPortMatch = false
c.DidMatch = false
}
type inboundContextKey struct{}
func WithContext(ctx context.Context, inboundContext *InboundContext) context.Context {
return context.WithValue(ctx, (*inboundContextKey)(nil), inboundContext)
}
func ContextFrom(ctx context.Context) *InboundContext {
metadata := ctx.Value((*inboundContextKey)(nil))
if metadata == nil {
return nil
}
return metadata.(*InboundContext)
}
func ExtendContext(ctx context.Context) (context.Context, *InboundContext) {
var newMetadata InboundContext
if metadata := ContextFrom(ctx); metadata != nil {
newMetadata = *metadata
}
return WithContext(ctx, &newMetadata), &newMetadata
}
func OverrideContext(ctx context.Context) context.Context {
if metadata := ContextFrom(ctx); metadata != nil {
var newMetadata InboundContext
newMetadata = *metadata
return WithContext(ctx, &newMetadata)
}
return ctx
}