Jason A. Donenfeld
c267965bf8
wintun: IpConfig is a MULTI_SZ, and fix errors
2019-05-10 18:06:49 +02:00
Jason A. Donenfeld
1bf1dadf15
wintun: poll for device key
...
It's actually pretty hard to guess where it is.
2019-05-10 17:34:03 +02:00
Jason A. Donenfeld
f9dcfccbb7
wintun: fix scope of error object
2019-05-10 16:59:24 +02:00
Simon Rozman
7e962a9932
wintun: wait for interface registry key on device creation
...
By using RegNotifyChangeKeyValue(). Also disable dead gateway detection.
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-05-10 16:43:58 +02:00
Simon Rozman
dcb8f1aa6b
wintun: fix GUID leading zero padding
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-05-09 12:16:21 +02:00
Jason A. Donenfeld
81ca08f1b3
setupapi: safer aliasing of slice types
2019-05-03 09:34:00 +02:00
Jason A. Donenfeld
2e988467c2
wintun: work around GetInterface staleness bug
2019-05-03 00:42:36 +02:00
Jason A. Donenfeld
46dbf54040
wintun: don't retry when not creating
...
The only time we're trying to counteract the race condition is when
we're creating a driver. When we're simply looking up all drivers, it
doesn't make sense to retry.
2019-05-02 23:53:15 +02:00
Jason A. Donenfeld
247e14693a
wintun: try harder to open registry key
...
This sucks. Can we please find a deterministic way of doing this
instead?
2019-04-29 14:00:49 +02:00
Jason A. Donenfeld
bb42ec7d18
tun: freebsd: work around numerous kernel panics on shutdown
...
There are numerous race conditions. But even this will crash it:
while true; do ifconfig tun0 create; ifconfig tun0 destroy; done
It seems like LLv6 is related, which we're not using anyway, so
explicitly disable it on the interface.
2019-04-23 18:00:23 +09:00
Simon Rozman
f1dc167901
setupapi: Fix struct size mismatches
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-04-19 10:08:11 +02:00
Jason A. Donenfeld
c7a26dfef3
setupapi: actually fix padding by rounding up to sizeof(void*)
2019-04-19 10:19:00 +09:00
Jason A. Donenfeld
d024393335
tun: darwin: write routeSocket variable in helper
...
Otherwise the race detector "complains".
2019-04-19 07:53:19 +09:00
Simon Rozman
5811447b38
setupapi: Revise DrvInfoDetailData struct size calculation
...
Go adds trailing padding to DrvInfoDetailData struct in GOARCH=386 which
confuses SetupAPI expecting exactly sizeof(SP_DRVINFO_DETAIL_DATA).
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-04-18 10:39:22 +02:00
Jason A. Donenfeld
e0a8c22aa6
windows: use proper constants from updated x/sys
2019-04-13 02:02:02 +02:00
Simon Rozman
ef5f3ad80a
tun: windows: Adopt new error codes returned by Wintun
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-04-11 19:38:11 +02:00
Simon Rozman
a291fdd746
tun: windows: do not sleep after OPERATION_ABORTED on write
...
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-04-11 19:37:04 +02:00
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
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
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
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
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
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
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