Add Tun.Name

go.mod

@@ -9,7 +9,7 @@ require (
 	github.com/sagernet/gvisor v0.0.0-20241123041152-536d05261cff
 	github.com/sagernet/netlink v0.0.0-20240612041022-b9a21c07ac6a
 	github.com/sagernet/nftables v0.3.0-beta.4
-	github.com/sagernet/sing v0.6.0-alpha.25
+	github.com/sagernet/sing v0.6.0-beta.2
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba
 	golang.org/x/exp v0.0.0-20240613232115-7f521ea00fb8
 	golang.org/x/net v0.26.0

go.sum

@@ -22,8 +22,8 @@ github.com/sagernet/netlink v0.0.0-20240612041022-b9a21c07ac6a h1:ObwtHN2VpqE0ZN
 github.com/sagernet/netlink v0.0.0-20240612041022-b9a21c07ac6a/go.mod h1:xLnfdiJbSp8rNqYEdIW/6eDO4mVoogml14Bh2hSiFpM=
 github.com/sagernet/nftables v0.3.0-beta.4 h1:kbULlAwAC3jvdGAC1P5Fa3GSxVwQJibNenDW2zaXr8I=
 github.com/sagernet/nftables v0.3.0-beta.4/go.mod h1:OQXAjvjNGGFxaTgVCSTRIhYB5/llyVDeapVoENYBDS8=
-github.com/sagernet/sing v0.6.0-alpha.25 h1:r/UxU+1O6436MjvEXEMRfBBtqMEImgA6uqxezXKZ/Rs=
-github.com/sagernet/sing v0.6.0-alpha.25/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
+github.com/sagernet/sing v0.6.0-beta.2 h1:Dcutp3kxrsZes9q3oTiHQhYYjQvDn5rwp1OI9fDLYwQ=
+github.com/sagernet/sing v0.6.0-beta.2/go.mod h1:ARkL0gM13/Iv5VCZmci/NuoOlePoIsW0m7BWfln/Hak=
 github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
 github.com/vishvananda/netns v0.0.4 h1:Oeaw1EM2JMxD51g9uhtC0D7erkIjgmj8+JZc26m1YX8=
 github.com/vishvananda/netns v0.0.4/go.mod h1:SpkAiCQRtJ6TvvxPnOSyH3BMl6unz3xZlaprSwhNNJM=

tun.go

@@ -25,6 +25,7 @@ type Handler interface {
 type Tun interface {
 	io.ReadWriter
 	N.VectorisedWriter
+	Name() (string, error)
 	Start() error
 	Close() error
 }

tun_darwin.go

@@ -32,6 +32,14 @@ type NativeTun struct {
 	routerSet    bool
 }
 
+func (t *NativeTun) Name() (string, error) {
+	return unix.GetsockoptString(
+		int(t.tunFile.Fd()),
+		2, /* #define SYSPROTO_CONTROL 2 */
+		2, /* #define UTUN_OPT_IFNAME 2 */
+	)
+}
+
 func New(options Options) (Tun, error) {
 	var tunFd int
 	if options.FileDescriptor == 0 {