Jason A. Donenfeld
|
967d1a0f3d
|
tun: allow special methods in NativeTun
|
2019-03-01 00:05:57 +01:00 |
|
|
Jason A. Donenfeld
|
88ff67fb6f
|
tun: linux: netpoll is broken for tun's epoll
So this mostly reverts the switch to Sysconn for Linux.
Issue: https://github.com/golang/go/issues/30426
|
2019-02-27 04:38:26 +01:00 |
|
|
Jason A. Donenfeld
|
971be13e77
|
tun: linux: netlink sock needs cleaning up but file will be gc'd
|
2019-02-27 04:11:41 +01:00 |
|
|
Jason A. Donenfeld
|
366cbd11a4
|
tun: use netpoll instead of rwcancel
The new sysconn function of Go 1.12 makes this possible:
package main
import "log"
import "os"
import "unsafe"
import "time"
import "syscall"
import "sync"
import "golang.org/x/sys/unix"
func main() {
fd, err := os.OpenFile("/dev/net/tun", os.O_RDWR, 0)
if err != nil {
log.Fatal(err)
}
var ifr [unix.IFNAMSIZ + 64]byte
copy(ifr[:], []byte("cheese"))
*(*uint16)(unsafe.Pointer(&ifr[unix.IFNAMSIZ])) = unix.IFF_TUN
var errno syscall.Errno
s, _ := fd.SyscallConn()
s.Control(func(fd uintptr) {
_, _, errno = unix.Syscall(
unix.SYS_IOCTL,
fd,
uintptr(unix.TUNSETIFF),
uintptr(unsafe.Pointer(&ifr[0])),
)
})
if errno != 0 {
log.Fatal(errno)
}
b := [4]byte{}
wait := sync.WaitGroup{}
wait.Add(1)
go func() {
_, err := fd.Read(b[:])
log.Print("Read errored: ", err)
wait.Done()
}()
time.Sleep(time.Second)
log.Print("Closing")
err = fd.Close()
if err != nil {
log.Print("Close errored: " , err)
}
wait.Wait()
log.Print("Exiting")
}
|
2019-02-27 01:52:55 +01:00 |
|
|
Jason A. Donenfeld
|
ab0f442daf
|
tun: use sysconn instead of .Fd with Go 1.12
|
2019-02-27 01:34:11 +01:00 |
|
|
Jason A. Donenfeld
|
42c6d0e261
|
Change package path
|
2019-02-18 05:11:39 +01:00 |
|
|
Jason A. Donenfeld
|
dff424baf8
|
Update copyright
|
2019-02-05 12:59:42 +01:00 |
|
|
Jason A. Donenfeld
|
651744561e
|
tun: remove nonblock hack for linux
This is no longer necessary and actually breaks things
Reported-by: Chris Branch <cbranch@cloudflare.com>
|
2018-12-06 17:17:51 +01:00 |
|
|
Jason A. Donenfeld
|
2e772194cf
|
tun: only call .Fd() once
Doing so tends to make the tunnel blocking, so we only retrieve it once
before we call SetNonblock, and then cache the result.
|
2018-10-17 21:31:42 +02:00 |
|
|
Jason A. Donenfeld
|
5be541d147
|
global: fix up copyright headers
|
2018-09-16 18:49:19 +02:00 |
|
|
Jason A. Donenfeld
|
15da869b31
|
Fix duplicate copyright line
|
2018-07-30 05:14:17 +02:00 |
|
|
Jason A. Donenfeld
|
2f2eca8947
|
Catch EINTR
|
2018-05-24 15:36:29 +02:00 |
|
|
Jason A. Donenfeld
|
588b9f01ae
|
Adopt GOPATH
GOPATH is annoying, but the Go community pushing me to adopt it is even
more annoying.
|
2018-05-23 05:18:13 +02:00 |
|
|
Jason A. Donenfeld
|
0a63188afa
|
Move tun to subpackage
|
2018-05-23 03:58:27 +02:00 |
|