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Author SHA1 Message Date
Jason A. Donenfeld
e680008700 tun: windows: do not sleep after OPERATION_ABORTED 2019-04-09 07:36:03 +02:00
Simon Rozman
767c86f8cb tun: windows: Retry R/W on ERROR_OPERATION_ABORTED 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-04-04 09:20:18 +02:00
Simon Rozman
421c1f9143 tun: windows: Attempt to reopen handle on all errors 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-04-03 05:41:38 +02:00
Jason A. Donenfeld
ac25702eaf wintun: rename device using undocumented API that netsh.exe uses 2019-04-01 12:04:44 +02:00
Jason A. Donenfeld
92f8474832 wintun: add more retry loops 2019-04-01 09:07:43 +02:00
Jason A. Donenfeld
2e0ed4614a tun: windows: cancel ongoing reads on closing and delete after close 
This reverts commit 52ec440d79 and adds
some spice.
 2019-03-26 16:14:32 +01:00
Jason A. Donenfeld
2fa80c0cb7 wintun: query for NetCfgInstanceId several times 2019-03-22 16:48:40 -06:00
Jason A. Donenfeld
52ec440d79 tun: windows: delete interface before deleting file handles 2019-03-22 16:45:58 -06:00
Simon Rozman
2faf2dcf90 tun: windows: Make adapter rename asynchronous 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-22 16:36:30 +01:00
Simon Rozman
41c30a7279 tun: windows: Adapter devices renamed to WINTUN<LUID Index> 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-22 15:29:14 +01:00
Simon Rozman
4b1db1d39b tun: windows: Increase unavailable adapter timeout to 30sec 
5 seconds was too short when debugging.

Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-22 13:52:51 +01:00
Simon Rozman
a80db5e65e tun: windows: Make writing persistent too 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-22 13:52:51 +01:00
Simon Rozman
9748a52073 tun: windows: Fix paused adapter test 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-22 13:52:51 +01:00
Jason A. Donenfeld
317d716d66 tun: windows: just open two file handles 2019-03-21 15:20:09 -06:00
Jason A. Donenfeld
6440f010ee receive: implement flush semantics 2019-03-21 14:45:41 -06:00
Jason A. Donenfeld
49ea0c9b1a tun: windows: add dummy overlapped events back 
These seem basically wrong to me, but we get crashes without them.
 2019-03-21 02:29:09 -06:00
Jason A. Donenfeld
ca59b60aa7 tun: windows: use new constants in sys 2019-03-20 23:42:30 -06:00
Jason A. Donenfeld
c050c6e60f uapi: remove unhelpful log messages 2019-03-20 23:40:20 -06:00
Simon Rozman
91b4e909bb wintun: Use native Win32 API for I/O 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-21 00:56:45 +01:00
Jason A. Donenfeld
2c51d6af48 uapi: report endpoint error 2019-03-19 00:34:04 -06:00
Jason A. Donenfeld
03f2e2614a tun: windows: wintun does iocp 2019-03-18 02:42:45 -06:00
Jason A. Donenfeld
b0e0ab308d tun: windows: temporary hack for forcing MTU 2019-03-13 02:52:32 -06:00
Jason A. Donenfeld
66fb5caf02 wintun: Poll more often 2019-03-10 03:47:54 +01:00
Jason A. Donenfeld
3dd9a0535f uapi: make ipcerror conform to interface 2019-03-10 02:49:44 +01:00
Simon Rozman
c2a2b8d739 wintun: Make errors more descriptive 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-08 10:03:57 +01:00
Simon Rozman
70449f1a97 wintun: Return correct reboot-req flag on CreateInterface() error too 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-08 10:03:57 +01:00
Simon Rozman
33c3528430 wintun: Fix double-quoted strings escaping on output 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-08 10:03:57 +01:00
Simon Rozman
30ab07e354 wintun: Introduce SetupAPI enumerator and machineName consts 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-08 10:03:57 +01:00
Odd Stranne
a6d5ef82f4 Windows: Apply strict security descriptor on pipe server 
Signed-off-by: Odd Stranne <odd@mullvad.net>
 2019-03-08 10:03:56 +01:00
Jason A. Donenfeld
5c7cc256e3 uapi: windows: work out pipe semantics 
Pipes can be arranged like this, so that's fine. We also apply a strict
SDDL that can't be inherited and only gives access to local system.

Developed-with: Odd Stranne <odd@mullvad.net>
 2019-03-08 01:40:54 +01:00
Simon Rozman
368dea72fe wintun: Cleanup 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-07 21:12:20 +01:00
Simon Rozman
9b22255cad wintun: Refactor network registry key name generation 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-07 21:12:20 +01:00
Simon Rozman
11f5780250 wintun: Revise interface creation wait 
DIF_INSTALLDEVICE returns almost immediately, while the device
installation continues in the background. It might take a while, before
all registry keys and values are populated.

Previously, wireguard-go waited for HKLM\SYSTEM\CurrentControlSet\
Control\Class\{4D36E972-E325-11CE-BFC1-08002BE10318}\<id> registry key
only.

Followed by a SetInterfaceName() method of Wintun struct which tried to
access HKLM\SYSTEM\CurrentControlSet\Control\Network\
{4D36E972-E325-11CE-BFC1-08002BE10318}\<id>\Connection registry key
might not be available yet.

This commit loops until both registry keys are available before
returning from CreateInterface() function.

Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-07 21:12:20 +01:00
Jason A. Donenfeld
26af6c4651 receive: squelch tear down error 2019-03-07 02:03:48 +01:00
Jason A. Donenfeld
92f72f5aa6 tun: linux: work out netpoll trick 2019-03-07 01:51:41 +01:00
Simon Rozman
1fdf7b19a3 wintun: Resolve some of golint warnings 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-04 16:37:11 +01:00
Simon Rozman
a1aabb21ae Elaborate the failing step when forwarding errors on return 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-04 16:37:11 +01:00
Simon Rozman
9041d38e2d Simplify reading NetCfgInstanceId from registry 
As querying non-existing registry value and reading non-existing
registry string value both return ERROR_FILE_NOT_FOUND, we can
use later only.

Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-04 16:37:11 +01:00
Simon Rozman
cddfd9a0d8 Unify interface-specific network registry key open 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-03-04 16:37:11 +01:00
Jason A. Donenfeld
68f0721c6a tun: import mobile particularities 2019-03-04 16:37:11 +01:00
Jason A. Donenfeld
b8e85267cf boundif: introduce API for socket binding 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
Jason A. Donenfeld
66524c1f7e Rearrange imports 2019-02-22 20:59:43 +01:00
Jason A. Donenfeld
6e4460ae65 device: send persistent keepalive when bringing up device 
Reported-by: Marcelo Bello
 2019-02-22 19:33:28 +01:00