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Author SHA1 Message Date
Jason A. Donenfeld
4739708ca4 noise: unify zero checking of ecdh 2020-03-17 23:07:14 -06:00
Tobias Klauser
b33219c2cf global: use RTMGRP_* consts from x/sys/unix 
Update the golang.org/x/sys/unix dependency and use the newly introduced
RTMGRP_* consts instead of using the corresponding RTNLGRP_* const to
create a mask.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
 2020-03-17 23:07:11 -06:00
Jason A. Donenfeld
9cbcff10dd send: account for zero mtu 
Don't divide by zero.
 2020-02-14 18:53:55 +01:00
Jason A. Donenfeld
6ed56ff2df device: fix private key removal logic 2020-02-04 22:02:53 +01:00
Jason A. Donenfeld
cb4bb63030 uapi: allow unsetting device private key with /dev/null 2020-02-04 22:02:53 +01:00
Jason A. Donenfeld
05b03c6750 version: bump snapshot 2020-01-21 16:27:19 +01:00
Jason A. Donenfeld
caebdfe9d0 tun: darwin: ignore ENOMEM errors 
Coauthored-by: Andrej Mihajlov <and@mullvad.net>
 2020-01-15 13:39:37 -05:00
Jason A. Donenfeld
4fa2ea6a2d tun: windows: serialize write calls 2020-01-07 11:40:45 -05:00
Jason A. Donenfeld
89dd065e53 README: update repo urls 2019-12-30 11:53:39 +01:00
Jason A. Donenfeld
ddfad453cf device: SendmsgN mutates the input sockaddr 
So we take a new granular lock to prevent concurrent writes from
racing.

WARNING: DATA RACE
Write at 0x00c0011f2740 by goroutine 27:
  golang.org/x/sys/unix.(*SockaddrInet4).sockaddr()
      /go/pkg/mod/golang.org/x/sys@v0.0.0-20191105231009-c1f44814a5cd/unix/syscall_linux.go:384
+0x114
  golang.org/x/sys/unix.SendmsgN()
      /go/pkg/mod/golang.org/x/sys@v0.0.0-20191105231009-c1f44814a5cd/unix/syscall_linux.go:1304
+0x288
  golang.zx2c4.com/wireguard/device.send4()
      /go/pkg/mod/golang.zx2c4.com/wireguard@v0.0.20191012/device/conn_linux.go:485
+0x11f
  golang.zx2c4.com/wireguard/device.(*nativeBind).Send()
      /go/pkg/mod/golang.zx2c4.com/wireguard@v0.0.20191012/device/conn_linux.go:268
+0x1d6
  golang.zx2c4.com/wireguard/device.(*Peer).SendBuffer()
      /go/pkg/mod/golang.zx2c4.com/wireguard@v0.0.20191012/device/peer.go:151
+0x285
  golang.zx2c4.com/wireguard/device.(*Peer).SendHandshakeInitiation()
      /go/pkg/mod/golang.zx2c4.com/wireguard@v0.0.20191012/device/send.go:163
+0x692
  golang.zx2c4.com/wireguard/device.(*Device).RoutineReadFromTUN()
      /go/pkg/mod/golang.zx2c4.com/wireguard@v0.0.20191012/device/send.go:318
+0x4b8

Previous write at 0x00c0011f2740 by goroutine 386:
  golang.org/x/sys/unix.(*SockaddrInet4).sockaddr()
      /go/pkg/mod/golang.org/x/sys@v0.0.0-20191105231009-c1f44814a5cd/unix/syscall_linux.go:384
+0x114
  golang.org/x/sys/unix.SendmsgN()
      /go/pkg/mod/golang.org/x/sys@v0.0.0-20191105231009-c1f44814a5cd/unix/syscall_linux.go:1304
+0x288
  golang.zx2c4.com/wireguard/device.send4()
      /go/pkg/mod/golang.zx2c4.com/wireguard@v0.0.20191012/device/conn_linux.go:485
+0x11f
  golang.zx2c4.com/wireguard/device.(*nativeBind).Send()
      /go/pkg/mod/golang.zx2c4.com/wireguard@v0.0.20191012/device/conn_linux.go:268
+0x1d6
  golang.zx2c4.com/wireguard/device.(*Peer).SendBuffer()
      /go/pkg/mod/golang.zx2c4.com/wireguard@v0.0.20191012/device/peer.go:151
+0x285
  golang.zx2c4.com/wireguard/device.(*Peer).SendHandshakeInitiation()
      /go/pkg/mod/golang.zx2c4.com/wireguard@v0.0.20191012/device/send.go:163
+0x692
  golang.zx2c4.com/wireguard/device.expiredRetransmitHandshake()
      /go/pkg/mod/golang.zx2c4.com/wireguard@v0.0.20191012/device/timers.go:110
+0x40c
  golang.zx2c4.com/wireguard/device.(*Peer).NewTimer.func1()
      /go/pkg/mod/golang.zx2c4.com/wireguard@v0.0.20191012/device/timers.go:42
+0xd8

Goroutine 27 (running) created at:
  golang.zx2c4.com/wireguard/device.NewDevice()
      /go/pkg/mod/golang.zx2c4.com/wireguard@v0.0.20191012/device/device.go:322
+0x5e8
  main.main()
      /go/src/x/main.go:102 +0x58e

Goroutine 386 (finished) created at:
  time.goFunc()
      /usr/local/go/src/time/sleep.go:168 +0x51

Reported-by: Ben Burkert <ben@benburkert.com>
 2019-11-28 11:11:13 +01:00
Jason A. Donenfeld
2b242f9393 wintun: manage ring memory manually 
It's large and Go's garbage collector doesn't deal with it especially
well.
 2019-11-22 13:13:55 +01:00
Jason A. Donenfeld
4cdf805b29 constants: recalculate rekey max based on a one minute flood 
Discussed-with: Mathias Hall-Andersen <mathias@hall-andersen.dk>
 2019-10-30 14:29:32 +01:00
Jonathan Tooker
f7d0edd2ec global: fix a few typos courtesy of codespell 
Signed-off-by: Jonathan Tooker <jonathan.tooker@netprotect.com>
 2019-10-22 11:51:25 +02:00
Jason A. Donenfeld
ffffbbcc8a device: allow blackholing sockets 2019-10-21 13:29:57 +02:00
Jason A. Donenfeld
47b02c618b device: remove dead error reporting code 2019-10-21 11:46:54 +02:00
Jason A. Donenfeld
fd23c66fcd namespaceapi: remove tasteless comment 2019-10-21 09:02:29 +02:00
Jason A. Donenfeld
ae492d1b35 device: recheck counters while holding write lock 2019-10-17 15:43:06 +02:00
Jason A. Donenfeld
95fbfccf60 wintun: normalize variable names for their types 2019-10-17 15:30:56 +02:00
Avery Pennarun
c85e4a410f wintun: quickly ignore non-Wintun devices 
Some devices take ~2 seconds to enumerate on Windows if we try to get
their instance name.  The hardware id property, on the other hand,
is available right away.

Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
[zx2c4: inlined this to where it makes sense, reused setupapi const]
 2019-10-17 15:19:20 +02:00
Avery Pennarun
1b6c8ddbe8 tun: match windows CreateTUN signature to the Linux variant 
Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
[zx2c4: fix default value]
 2019-10-17 15:19:20 +02:00
Avery Pennarun
0abb6b668c rwcancel: handle EINTR and EAGAIN in unixSelect() 
On my Chromebook (Linux 4.19.44 in a VM) and on an AWS EC2
machine, select() was sometimes returning EINTR. This is
harmless and just means you should try again. So let's try
again.

This eliminates a problem where the tunnel fails to come up
correctly and the program needs to be restarted.

Signed-off-by: Avery Pennarun <apenwarr@gmail.com>
 2019-10-17 15:19:17 +02:00
David Crawshaw
540d01e54a device: test packets between two fake devices 
Signed-off-by: David Crawshaw <crawshaw@tailscale.io>
 2019-10-16 11:38:28 +02:00
Jason A. Donenfeld
f2ea85e9f9 version: bump snapshot 2019-10-12 22:34:10 +02:00
Jason A. Donenfeld
222f0f8000 Makefile: remove v prefix 2019-10-08 16:48:18 +02:00
Jason A. Donenfeld
1f146a5e7a wintun: expose version 2019-10-08 09:58:58 +02:00
Jason A. Donenfeld
f2501aa6c8 uapi: allow preventing creation of new peers when updating 
This enables race-free updates for wg-dynamic and similar tools.

Suggested-by: Thomas Gschwantner <tharre3@gmail.com>
 2019-10-04 11:41:02 +02:00
Jason A. Donenfeld
cb8d01f58a mod: bump versions 2019-10-04 11:41:02 +02:00
Jason A. Donenfeld
01f8ef4e84 winpipe: use x/sys/windows instead of syscall 2019-09-16 23:39:16 -06:00
Jason A. Donenfeld
70f6c42556 wintun: use correct length for security attributes 2019-09-16 19:38:33 -06:00
Jason A. Donenfeld
bb0b2514c0 tun: windows: unify error message format 2019-09-08 13:52:44 -05:00
Jason A. Donenfeld
7c97fdb1e3 version: bump snapshot 2019-09-08 10:56:55 -05:00
Jason A. Donenfeld
84b5a4d83d main: simplify warnings 2019-09-08 10:56:00 -05:00
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
Jason A. Donenfeld
d12eb91f9a namespaceapi: AddSIDToBoundaryDescriptor modifies the handle 2019-09-05 21:48:21 -06:00
Jason A. Donenfeld
73d3bd9cd5 wintun: take mutex first always 
This prevents an ABA deadlock with setupapi's internal locks.
 2019-09-01 21:32:28 -06:00
Jason A. Donenfeld
f3dba4c194 wintun: consider abandoned mutexes as released 2019-09-01 21:25:47 -06:00
Jason A. Donenfeld
7937840f96 ipc: windows: use protected prefix 2019-08-31 07:48:42 -06:00
Jason A. Donenfeld
e4b957183c winpipe: enforce ownership of client connection 2019-08-30 13:21:47 -06:00
Jason A. Donenfeld
950ca2ba8c wintun: put mutex into private namespace 2019-08-30 11:03:21 -06:00
Jason A. Donenfeld
df2bf34373 namespaceapi: fix mistake 2019-08-30 09:59:36 -06:00
Simon Rozman
a12b765784 namespaceapi: initial version 
Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-08-30 15:34:17 +02:00
Jason A. Donenfeld
14df9c3e75 wintun: take mutex so that deletion uses the right name 2019-08-30 15:34:17 +02:00
Jason A. Donenfeld
353f0956bc wintun: move ring constants into module 2019-08-29 13:22:17 -06:00
Jason A. Donenfeld
fa7763c268 wintun: delete all interfaces is not used anymore 2019-08-29 12:22:15 -06:00
Jason A. Donenfeld
d94bae8348 wintun: Wintun->Interface 2019-08-29 12:20:40 -06:00
Jason A. Donenfeld
7689d09336 wintun: keep reference to pool in wintun object 2019-08-29 12:13:16 -06:00
Simon Rozman
69c26dc258 wintun: introduce adapter pools 
This makes wintun package reusable for non-WireGuard applications.

Signed-off-by: Simon Rozman <simon@rozman.si>
 2019-08-29 18:00:44 +02:00
Jason A. Donenfeld
e862131d3c wintun: simplify rename logic 2019-08-28 19:31:20 -06:00
Jason A. Donenfeld
da28a3e9f3 wintun: give better errors when ndis interface listing fails 2019-08-28 08:39:26 -06:00
Jason A. Donenfeld
3bf3322b2c wintun: also check for numbered suffix and friendly name 2019-08-28 08:08:07 -06:00