github.com/imannamdari/v2ray-core/v5@v5.0.5/transport/internet/tcp/dialer.go (about) 1 package tcp 2 3 import ( 4 "context" 5 6 "github.com/imannamdari/v2ray-core/v5/common" 7 "github.com/imannamdari/v2ray-core/v5/common/net" 8 "github.com/imannamdari/v2ray-core/v5/common/serial" 9 "github.com/imannamdari/v2ray-core/v5/common/session" 10 "github.com/imannamdari/v2ray-core/v5/transport/internet" 11 "github.com/imannamdari/v2ray-core/v5/transport/internet/security" 12 ) 13 14 // Dial dials a new TCP connection to the given destination. 15 func Dial(ctx context.Context, dest net.Destination, streamSettings *internet.MemoryStreamConfig) (internet.Connection, error) { 16 newError("dialing TCP to ", dest).WriteToLog(session.ExportIDToError(ctx)) 17 conn, err := internet.DialSystem(ctx, dest, streamSettings.SocketSettings) 18 if err != nil { 19 return nil, err 20 } 21 22 securityEngine, err := security.CreateSecurityEngineFromSettings(ctx, streamSettings) 23 if err != nil { 24 return nil, newError("unable to create security engine").Base(err) 25 } 26 27 if securityEngine != nil { 28 conn, err = securityEngine.Client(conn, security.OptionWithDestination{Dest: dest}) 29 if err != nil { 30 return nil, newError("unable to create security protocol client from security engine").Base(err) 31 } 32 } 33 34 tcpSettings := streamSettings.ProtocolSettings.(*Config) 35 if tcpSettings.HeaderSettings != nil { 36 headerConfig, err := serial.GetInstanceOf(tcpSettings.HeaderSettings) 37 if err != nil { 38 return nil, newError("failed to get header settings").Base(err).AtError() 39 } 40 auth, err := internet.CreateConnectionAuthenticator(headerConfig) 41 if err != nil { 42 return nil, newError("failed to create header authenticator").Base(err).AtError() 43 } 44 conn = auth.Client(conn) 45 } 46 return internet.Connection(conn), nil 47 } 48 49 func init() { 50 common.Must(internet.RegisterTransportDialer(protocolName, Dial)) 51 }