xsteadfastx/wireguard-go
1
0
Fork 0
mirror of https://git.zx2c4.com/wireguard-go synced 2024-11-15 01:05:15 +01:00
Code Issues Releases Wiki Activity

A bit more messing with tun_dragonfly

Browse Source
This commit is contained in:
Brady OBrien 2018-05-25 20:43:22 -05:00
parent de4c43207b
commit e3eae3bc01
1 changed files with 14 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
tun/tun_dragonfly.go
View File

@ -23,6 +23,8 @@ import (
const _TUNSIFHEAD = 0x80047460 const _TUNSIFHEAD = 0x80047460
const _TUNSIFMODE = 0x8004745e const _TUNSIFMODE = 0x8004745e
const _TUNSIFPID = 0x2000745f const _TUNSIFPID = 0x2000745f
const _FIONBIO = 0x8004667e
const _FIOASYNC = 0x8004667d
// Iface status string max len // Iface status string max len
const _IFSTATMAX = 800 const _IFSTATMAX = 800
@ -269,9 +271,19 @@ func CreateTUN(name string, mtu int) (TUNDevice, error) {
return nil, err return nil, err
} }
var errno syscall.Errno;
ifbiomode := 1
_, _, errno = unix.Syscall(
unix.SYS_IOCTL,
uintptr(tunfd),
uintptr(_FIOASYNC),
uintptr(unsafe.Pointer(&ifbiomode)),
)
// Enable ifhead mode, otherwise tun will complain if it gets a non-AF_INET packet // Enable ifhead mode, otherwise tun will complain if it gets a non-AF_INET packet
ifheadmode := 1 ifheadmode := 1
_, _, errno := unix.Syscall( _, _, errno = unix.Syscall(
unix.SYS_IOCTL, unix.SYS_IOCTL,
uintptr(tunfd), uintptr(tunfd),
uintptr(_TUNSIFHEAD), uintptr(_TUNSIFHEAD),
@ -390,7 +402,7 @@ func (tun *nativeTun) doRead(buff []byte, offset int) (int, error) {
default: default:
buff := buff[offset-4:] buff := buff[offset-4:]
n, err := tun.fd.Read(buff[:]) n, err := tun.fd.Read(buff[:])
if n < 4 { if n < 4 && n > 0{
return 0, err return 0, err
} }
return n - 4, err return n - 4, err