snow/wireguard-go
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Author SHA1 Message Date
Jason A. Donenfeld 9c9e7e2724 global: apply gofumpt 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-12-09 23:15:55 +01:00
Brad Fitzpatrick 0f4809f366 tun: make NativeTun.Close well behaved, not crash on double close 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-02-22 15:26:29 +01:00
Jason A. Donenfeld 8bf4204d2e global: stop using ioutil 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-02-17 22:19:27 +01:00
Jason A. Donenfeld c040dea798 tun: use errors.Is for unwrapping 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-02-09 19:50:31 +01:00
Jason A. Donenfeld d4112d9096 global: bump copyright 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-01-28 17:52:15 +01:00
Josh Bleecher Snyder 1481e72107 all: use ++ to increment 
Make the code slightly more idiomatic. No functional changes.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
 2021-01-07 14:49:44 +01:00
Jason A. Donenfeld db0aa39b76 global: update header comments and modules 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2020-05-02 02:08:26 -06:00
Jason A. Donenfeld 4cd06c0925 tun: openbsd: check for interface already being up 
In some cases, we operate on an already-up interface, or the user brings
up the interface before we start monitoring. For those situations, we
should first check if the interface is already up.

This still technically races between the initial check and the start of
the route loop, but fixing that is a bit ugly and probably not worth it
at the moment.

Reported-by: Theo Buehler <tb@theobuehler.org>
 2019-09-07 00:13:23 -05:00
Michael Zeltner 4d5819183e tun: openbsd: don't change MTU when it's already the expected size 
Allows for running wireguard-go as non-root user.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2019-07-18 10:25:20 +02:00
Matt Layher 1f48971a80 tun: remove TUN prefix from types to reduce stutter elsewhere 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2019-06-14 18:35:57 +02:00
Jason A. Donenfeld eaf17becfa global: fixup TODO comment spacing 2019-06-06 23:00:15 +02:00
Jason A. Donenfeld 3bf41b06ae global: regroup all imports 2019-05-14 09:09:52 +02:00
Jason A. Donenfeld 6440f010ee receive: implement flush semantics 2019-03-21 14:45:41 -06:00
Jason A. Donenfeld 967d1a0f3d tun: allow special methods in NativeTun 2019-03-01 00:05:57 +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 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 5079298ce2 Disable broadcast mode on *BSD 
Keeping it on makes IPv6 problematic and confuses routing daemons.
 2018-05-27 22:55:15 +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
Renamed from tun_openbsd.go (Browse further)