STRLCPY/tun2socks

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core/device/tun/tun_wireguard.go

		skipped 47 lines
48	48		forcedMTU = int(t.mtu)
49	49		}
50	50
51		-	nt, err := tun.CreateTUN(t.name, forcedMTU)
	51	+	nt, err := createTUN(t.name, forcedMTU)
52	52		if err != nil {
53	53		return nil, fmt.Errorf("create tun: %w", err)
54	54		}
		skipped 42 lines

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core/device/tun/tun_wireguard_linux.go

		skipped 2 lines
3	3		package tun
4	4
5	5		import (
6		-	"unsafe"
	6	+	"fmt"
	7	+	"os"
	8	+
	9	+	"golang.zx2c4.com/wireguard/tun"
	10	+	gun "gvisor.dev/gvisor/pkg/tcpip/link/tun"
7	11		)
8	12
9	13		const (
10		-	virtioNetHdrLen = int(unsafe.Sizeof(virtioNetHdr{}))
11		-	offset = virtioNetHdrLen + 0 /* NO_PI */
12		-	defaultMTU = 1500
	14	+	offset = 0 /* IFF_NO_PI */
	15	+	defaultMTU = 1500
13	16		)
14	17
15		-	// virtioNetHdr is defined in the kernel in include/uapi/linux/virtio_net.h. The
16		-	// kernel symbol is virtio_net_hdr.
17		-	type virtioNetHdr struct {
18		-	flags uint8
19		-	gsoType uint8
20		-	hdrLen uint16
21		-	gsoSize uint16
22		-	csumStart uint16
23		-	csumOffset uint16
	18	+	func createTUN(name string, mtu int) (tun.Device, error) {
	19	+	nfd, err := gun.Open(name)
	20	+	if err != nil {
	21	+	return nil, fmt.Errorf("create tun: %w", err)
	22	+	}
	23	+
	24	+	fd := os.NewFile(uintptr(nfd), "/dev/net/tun")
	25	+	return tun.CreateTUNFromFile(fd, mtu)
24	26		}
25	27

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core/device/tun/tun_wireguard_unix.go

		skipped 1 lines
2	2
3	3		package tun
4	4
	5	+	import (
	6	+	"golang.zx2c4.com/wireguard/tun"
	7	+	)
	8	+
5	9		const (
6	10		offset = 4 /* 4 bytes TUN_PI */
7	11		defaultMTU = 1500
8	12		)
9	13
	14	+	func createTUN(name string, mtu int) (tun.Device, error) {
	15	+	return tun.CreateTUN(name, mtu)
	16	+	}
	17	+

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core/device/tun/tun_wireguard_windows.go

1	1		package tun
2	2
	3	+	import (
	4	+	"golang.zx2c4.com/wireguard/tun"
	5	+	)
	6	+
3	7		const (
4	8		offset = 0
5	9		defaultMTU = 0 /* auto */
6	10		)
7	11
	12	+	func createTUN(name string, mtu int) (tun.Device, error) {
	13	+	return tun.CreateTUN(name, mtu)
	14	+	}
	15	+