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b33219c2cf
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49 Commits

Author SHA1 Message Date
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
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
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
ae492d1b35 device: recheck counters while holding write lock 2019-10-17 15:43:06 +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
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
7c97fdb1e3 version: bump snapshot 2019-09-08 10:56:55 -05:00
Jason A. Donenfeld
f8198c0428 device: getsockname on linux to determine port 
It turns out Go isn't passing the pointer properly so we wound up with a
zero port every time.
 2019-08-25 12:45:13 -06:00
Jason A. Donenfeld
b16dba47a7 version: bump snapshot 2019-08-05 19:29:12 +02:00
Jason A. Donenfeld
4be9630ddc device: drop lock before expiring keys 2019-08-05 17:46:34 +02:00
Jason A. Donenfeld
4e3018a967 uapi: skip peers with invalid keys 2019-08-05 16:57:41 +02:00
Jason A. Donenfeld
7bc0e11831 device: do not crash on nil'd bind in windows binding 2019-07-18 19:34:45 +02:00
Jason A. Donenfeld
a961aacc9f device: immediately rekey all peers after changing device private key 
Reported-by: Derrick Pallas <derrick@pallas.us>
 2019-07-11 17:37:35 +02:00
Jason A. Donenfeld
f361e59001 device: receive: uniform message for source address check 2019-07-01 15:24:50 +02:00
Jason A. Donenfeld
dd8817f50e device: receive: simplify flush loop 2019-07-01 15:23:24 +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
3371f8dac6 device: update transfer counters correctly 
The rule is to always update them to the full packet size minus UDP/IP
encapsulation for all authenticated packet types.
 2019-06-11 18:13:52 +02:00
Matt Layher
43a4589043 device: remove redundant return statements 
More staticcheck fixes:

$ staticcheck ./... | grep S1023
device/noise-helpers.go:45:2: redundant return statement (S1023)
device/noise-helpers.go:54:2: redundant return statement (S1023)
device/noise-helpers.go:64:2: redundant return statement (S1023)

Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2019-06-04 13:01:52 +02:00
Matt Layher
8d76ac8cc4 device: use bytes.Equal for equality check, simplify assertEqual 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2019-06-04 13:01:52 +02:00
Matt Layher
18b6627f33 device, ratelimiter: replace uses of time.Now().Sub() with time.Since() 
Simplification found by staticcheck:

$ staticcheck ./... | grep S1012
device/cookie.go:90:5: should use time.Since instead of time.Now().Sub (S1012)
device/cookie.go:127:5: should use time.Since instead of time.Now().Sub (S1012)
device/cookie.go:242:5: should use time.Since instead of time.Now().Sub (S1012)
device/noise-protocol.go:304:13: should use time.Since instead of time.Now().Sub (S1012)
device/receive.go:82:46: should use time.Since instead of time.Now().Sub (S1012)
device/send.go:132:5: should use time.Since instead of time.Now().Sub (S1012)
device/send.go:139:5: should use time.Since instead of time.Now().Sub (S1012)
device/send.go:235:59: should use time.Since instead of time.Now().Sub (S1012)
device/send.go:393:9: should use time.Since instead of time.Now().Sub (S1012)
ratelimiter/ratelimiter.go:79:10: should use time.Since instead of time.Now().Sub (S1012)
ratelimiter/ratelimiter.go:87:10: should use time.Since instead of time.Now().Sub (S1012)

Change applied using:

$ find . -type f -name "*.go" -exec sed -i "s/Now().Sub(/Since(/g" {} \;

Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2019-06-03 22:15:41 +02:00
Jason A. Donenfeld
d9f995209c device: add SendKeepalivesToPeersWithCurrentKeypair for handover 2019-05-30 15:16:16 +02:00
Matt Layher
32912dc778 device, tun: rearrange code and fix device tests 
Signed-off-by: Matt Layher <mdlayher@gmail.com>
 2019-05-29 18:34:55 +02:00
Jason A. Donenfeld
fbcd995ec1 device: darwin actually doesn't need bound interfaces 2019-05-25 18:10:52 +02:00
Jason A. Donenfeld
e7e286ba6c device: make initiations per second match kernel implementation 2019-05-25 02:07:18 +02:00
Jason A. Donenfeld
f70546bc2e device: timers: add jitter on ack failure reinitiation 2019-05-24 13:48:25 +02:00
Jason A. Donenfeld
c718f3940d device: fail to give bind if it doesn't exist 2019-05-17 15:35:20 +02:00
Jason A. Donenfeld
583ebe99f1 version: bump snapshot 2019-05-17 10:28:04 +02:00
Jason A. Donenfeld
3bf41b06ae global: regroup all imports 2019-05-14 09:09:52 +02:00
Jason A. Donenfeld
586112b5d7 conn: remove scope when sanity checking IP address format 2019-05-09 15:42:35 +02:00
Jason A. Donenfeld
d3dd991e4e device: send: check packet length before freeing element 2019-04-18 23:23:03 +09:00
Jason A. Donenfeld
0b77bf78cd conn: linux: RTA_MARK has moved to x/sys 2019-04-13 02:01:20 +02:00
Jason A. Donenfeld
18fa270472 version: put version in right place 2019-04-09 10:39:48 +02:00
Jason A. Donenfeld
6440f010ee receive: implement flush semantics 2019-03-21 14:45:41 -06:00
Jason A. Donenfeld
c050c6e60f uapi: remove unhelpful log messages 2019-03-20 23:40:20 -06:00
Jason A. Donenfeld
2c51d6af48 uapi: report endpoint error 2019-03-19 00:34:04 -06:00
Jason A. Donenfeld
3dd9a0535f uapi: make ipcerror conform to interface 2019-03-10 02:49:44 +01:00
Jason A. Donenfeld
26af6c4651 receive: squelch tear down error 2019-03-07 02:03:48 +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