Jason A. Donenfeld
68f0721c6a
tun: import mobile particularities
2019-03-04 16:37:11 +01:00
Jason A. Donenfeld
69f0fe67b6
global: begin modularization
2019-03-03 05:00:40 +01:00
Jason A. Donenfeld
d435be35ca
tun: windows: expose GUID
2019-03-01 00:11:12 +01:00
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
Simon Rozman
d002eff155
wintun: Read/write packet size from/to exchange buffer directly
...
Driver <-> user-space communication is local and using native endian.
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-22 16:16:14 +01:00
Simon Rozman
e06a8f8f9f
wintun: Make two-step slicing a one step
...
Stop relying to Go compiler optimizations and calculate the end offset
directly.
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-22 16:11:33 +01:00
Simon Rozman
ac4944a708
wintun: Write exchange buffer increased back to 1MiB
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-20 20:13:33 +01:00
Simon Rozman
2491f9d454
wintun: Migrate from unsafe buffer handling to encoding/binary
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-20 20:10:24 +01:00
Simon Rozman
8091c6474a
wintun: Adopt new packet data alignment
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-20 19:56:10 +01:00
Simon Rozman
040da43889
wintun: Cleanup
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-20 18:38:18 +01:00
Simon Rozman
b7025b5627
wintun: Add TUN device locking
...
In case reading from TUN device detected TUN device was closed, it
closed the file handle and set tunFile to nil. The tunFile is
automatically reopened on retry, but... If another packet comes in the
WireGuard calls Write() method. With tunFile set to nil, this will
cause access violation.
Therefore, locking was introduced.
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-20 13:12:08 +01:00
Simon Rozman
6581cfb885
wintun: Move exchange buffer in separate struct on heap
...
This allows buffer alignment and keeps it together with its meta-data.
Furthermore, the write buffer has been reduced - as long as we flush
after _every_ write, we don't need a 1MiB write buffer.
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-20 11:41:37 +01:00
Simon Rozman
4863089120
wintun: Switch to dynamic packet sizes
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-19 18:50:42 +01:00
Jason A. Donenfeld
42c6d0e261
Change package path
2019-02-18 05:11:39 +01:00
Simon Rozman
b719a09a26
wintun: Auto-calculate TUN exchange buffer size
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-08 15:21:24 +01:00
Simon Rozman
f05f52637f
wintun: Simplify Read method()
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-08 14:31:05 +01:00
Simon Rozman
713477cfb1
wintun: Make constants private and adopt Go recommended case
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-08 08:55:23 +01:00
Simon Rozman
5981d5cacf
wintun: Check for user close in read loop regardless the load
...
Do the WaitForSingleObject() always to provide high-load responsiveness.
Reorder events so TUN_SIGNAL_CLOSE has priority over
TUN_SIGNAL_DATA_AVAIL, to provide high-load responsiveness at all.
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-08 08:48:35 +01:00
Simon Rozman
b13739ada2
wintun: Adjust tunRWQueue.left member to match Wintun driver
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-08 07:32:12 +01:00
Simon Rozman
c4988999ac
setupapi: Merge _SP_DRVINFO_DETAIL_DATA and DrvInfoDetailData
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-07 23:50:43 +01:00
Simon Rozman
b662896cf4
setupapi: Merge SP_DRVINFO_DATA and DrvInfoData
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-07 23:50:43 +01:00
Simon Rozman
0525f6b112
setupapi: Rename SP_REMOVEDEVICE_PARAMS to RemoveDeviceParams
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-07 23:50:43 +01:00
Simon Rozman
9d830826c5
setupapi: Rename SP_CLASSINSTALL_HEADER to ClassInstallHeader
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-07 23:50:43 +01:00
Simon Rozman
bd963497da
setupapi: Merge _SP_DEVINSTALL_PARAMS and DevInstallParams
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-07 23:50:30 +01:00
Simon Rozman
05d25fd1b7
setupapi: Merge _SP_DEVINFO_LIST_DETAIL_DATA and DevInfoListDetailData
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-07 23:49:50 +01:00
Simon Rozman
6d2729dccc
setupapi: Rename SP_DEVINFO_DATA to DevInfoData
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-07 22:43:02 +01:00
Simon Rozman
d87cbeeb2f
wintun: Detect if a foreign interface with the same name exists
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-07 22:02:51 +01:00
Simon Rozman
043b7e8013
wintun: Clean excessive setupapi.DevInfo.GetDeviceInfoListDetail() call
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-07 20:49:41 +01:00
Simon Rozman
ef48d4fa95
wintun: Explain rationale behind case-insensitive interface names
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-07 19:42:59 +01:00
Simon Rozman
f7276ed522
wintun: Implement TODO in TestSetupDiGetDeviceRegistryProperty()
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-07 18:59:34 +01:00
Jason A. Donenfeld
c4b43e35a7
wintun: add FlushInterface stub
2019-02-07 18:24:28 +01:00
Jason A. Donenfeld
fac1fbcd72
wintun: Compare values of GUID, not pointers, when removing
2019-02-07 04:49:15 +01:00
Jason A. Donenfeld
ea59177f1c
wintun: Introduce new package for obscuring Windows bits
2019-02-07 04:39:59 +01:00
Jason A. Donenfeld
306d08e692
tun_windows: Style
2019-02-07 04:08:05 +01:00
Simon Rozman
cb2bc4b34c
tun_windows: Introduce preliminary TUN interface creation
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-06 22:30:14 +01:00
Simon Rozman
46279ad0f9
tun_windows: Stop checking minimum size of received TUN packets
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-02-06 20:22:04 +01:00
Jason A. Donenfeld
c599bf9497
Fix up errors and paths
2019-02-05 22:06:25 +09:00
Jason A. Donenfeld
6f76edd045
Import windows scafolding
2019-02-05 12:59:42 +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
276bf973e8
Use darwin tun on ios
2018-11-06 16:24:35 +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
0ba551807f
Do not build tun device on ios
2018-06-09 03:31:17 +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