Commit Graph

239 Commits

Author SHA1 Message Date
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
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
Simon Rozman
7305b4ce93 wintun: upgrade deleting all interfaces and make it reusable
DeleteAllInterfaces() didn't check if SPDRP_DEVICEDESC == "WireGuard
Tunnel". It deleted _all_ Wintun adapters, not just WireGuard's.

Furthermore, the DeleteAllInterfaces() was upgraded into a new function
called DeleteMatchingInterfaces() for selectively deletion. This will
be used by WireGuard to clean stale Wintun adapters.

Signed-off-by: Simon Rozman <simon@rozman.si>
2019-08-28 11:39:01 +02:00
Jason A. Donenfeld
26fb615b11 wintun: cleanup earlier 2019-08-27 11:59:15 -06:00
Jason A. Donenfeld
7fbb24afaa wintun: rename duplicate adapters instead of ourselves 2019-08-27 11:59:15 -06:00
Jason A. Donenfeld
d9008ac35c wintun: match suffix numbers 2019-08-26 14:46:43 -06:00
Jason A. Donenfeld
0c540ad60e wintun: make description consistent across fields 2019-08-24 12:29:17 +02:00
Jason A. Donenfeld
3cedc22d7b wintun: try multiple names until one isn't a duplicate 2019-08-22 08:52:59 +02:00
Jason A. Donenfeld
68fea631d8 wintun: use nci.dll directly instead of buggy netshell 2019-08-21 09:16:12 +02:00
Jason A. Donenfeld
ef23100a4f wintun: set friendly a bit better
This is still wrong, but NETSETUPPKEY_Driver_FriendlyName seems a bit
tricky to use.
2019-08-20 16:06:55 +02:00
Jason A. Donenfeld
eb786cd7c1 wintun: also set friendly name after setting interface name 2019-08-19 10:12:50 +02:00
Jason A. Donenfeld
333de75370 wintun: defer requires unique variable 2019-08-19 10:12:50 +02:00
Jason A. Donenfeld
d20459dc69 wintun: set adapter description name 2019-08-19 10:12:50 +02:00
Jason A. Donenfeld
01786286c1 tun: windows: don't spin unless we really need it 2019-08-19 10:12:50 +02:00
Jason A. Donenfeld
b4010123f7 tun: windows: spin for only a millisecond/80
Performance stays the same as before.
2019-08-03 19:11:21 +02:00
Simon Rozman
1ff37e2b07 wintun: merge opening device registry key
This also introduces waiting for key to appear on initial access.

See if this resolves the issue caused by HDD power-up delay resulting in
failure to create the adapter.

Signed-off-by: Simon Rozman <simon@rozman.si>
2019-08-02 16:08:49 +02:00
Simon Rozman
f5e54932e6 wintun: simplify checking reboot requirement
We never checked checkReboot() reported error anyway.

Signed-off-by: Simon Rozman <simon@rozman.si>
2019-08-02 16:08:49 +02:00
Simon Rozman
73698066d1 wintun: refactor err == nil error checking
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-08-02 15:18:58 +02:00
Jason A. Donenfeld
05ece4d167 wintun: handle error for deadgwdetect 2019-08-02 14:37:09 +02:00
Jason A. Donenfeld
6d78f89557 tun: darwin: do not attempt to close tun.event twice
Previously it was possible for this to race. It turns out we really
don't need to set anything to -1 anyway.
2019-08-02 12:24:17 +02:00
Jason A. Donenfeld
a2249449d6 wintun: get interface path properly with cfgmgr 2019-07-23 14:58:46 +02:00
Jason A. Donenfeld
eeeac287ef tun: windows: style 2019-07-23 11:45:48 +02:00
Jason A. Donenfeld
b5a7cbf069 wintun: simplify resolution of dev node 2019-07-23 11:45:13 +02:00
Jason A. Donenfeld
50cd522cb0 wintun: enable sharing of pnp node 2019-07-22 17:01:27 +02:00
Jason A. Donenfeld
5ba866a5c8 tun: windows: close event handle on shutdown 2019-07-22 09:37:20 +02:00
Jason A. Donenfeld
3341e2d444 tun: windows: get rid of retry logic
Things work fine on Windows 8.
2019-07-19 14:01:34 +02:00
Jason A. Donenfeld
1b550f6583 tun: windows: use specific IOCTL code 2019-07-19 08:30:19 +02:00
Jason A. Donenfeld
31ff9c02fe tun: windows: open file at startup time 2019-07-18 19:27:27 +02:00
Jason A. Donenfeld
1e39c33ab1 tun: windows: silently drop packet when ring is full 2019-07-18 15:48:34 +02:00
Jason A. Donenfeld
6c50fedd8e tun: windows: switch to NDIS device object 2019-07-18 12:26:57 +02:00
Jason A. Donenfeld
298d759f3e wintun: calculate path of NDIS device object symbolic link 2019-07-18 10:25:20 +02:00
Michael Zeltner
4d5819183e tun: openbsd: don't change MTU when it's already the expected size
Allows for running wireguard-go as non-root user.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2019-07-18 10:25:20 +02:00
Jason A. Donenfeld
9ea9a92117 tun: windows: spin for a bit before falling back to event object 2019-07-18 10:25:20 +02:00
Simon Rozman
2e24e7dcae tun: windows: implement ring buffers
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-07-17 14:32:13 +02:00
Jason A. Donenfeld
5c3d333f10 tun: windows: registration of write buffer no longer required 2019-07-05 14:17:48 +02:00
Jason A. Donenfeld
d8448f8a02 tun: windows: decrease alignment to 4 2019-07-05 07:53:19 +02:00
Jason A. Donenfeld
13abbdf14b tun: windows: delay initial write
Otherwise we provoke Wintun 0.3.
2019-07-04 22:41:42 +02:00
Jason A. Donenfeld
b844f1b3cc tun: windows: packetNum is unused 2019-07-01 15:23:44 +02:00
Jason A. Donenfeld
5e6eff81b6 tun: windows: inform wintun of maximum buffer length for writes 2019-06-26 13:27:48 +02:00
Jason A. Donenfeld
c69d026649 tun: windows: never retry open on Windows 10 2019-06-18 17:51:29 +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
41fdbf0971 wintun: increase registry timeout 2019-06-11 00:33:07 +02:00
Jason A. Donenfeld
03eee4a778 wintun: add helper for cleaning up 2019-06-10 11:34:59 +02:00
Jason A. Donenfeld
700860f8e6 wintun: simplify error matching and remove dumb comments 2019-06-10 11:10:49 +02:00
Jason A. Donenfeld
a304f69e0d wintun: fix comments and remove hwnd param
This now looks more idiomatic.
2019-06-10 11:03:36 +02:00
Simon Rozman
baafe92888 setupapi: add SetDeviceRegistryPropertyString description
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-06-10 10:43:04 +02:00
Simon Rozman
a1a97d1e41 setupapi: unify ERROR_INSUFFICIENT_BUFFER handling
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-06-10 10:43:03 +02:00
Jason A. Donenfeld
e924280baa wintun: allow controlling GUID 2019-06-10 10:43:02 +02:00
Jason A. Donenfeld
bb3f1932fa setupapi: add DeviceInstanceID() 2019-06-10 10:43:01 +02:00
Jason A. Donenfeld
eaf17becfa global: fixup TODO comment spacing 2019-06-06 23:00:15 +02:00
Jason A. Donenfeld
6d8b68c8f3 wintun: guid functions are upstream 2019-06-06 22:39:20 +02:00
Simon Rozman
c2ed133df8 wintun: simplify DeleteInterface method signature
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-06-06 08:58:26 +02:00
Jason A. Donenfeld
108c37a056 wintun: don't run HrRenameConnection in separate thread
It's very slow, but unfortunately we haven't a choice. NLA needs this to
have completed.
2019-06-05 13:09:20 +02:00
Simon Rozman
e4b0ef29a1 tun: windows: obsolete 256 packets per exchange buffer limitation
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-06-05 11:55:28 +02:00
Simon Rozman
625e445b22 setupapi, wintun: replace syscall with golang.org/x/sys/windows
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-06-04 14:54:56 +02:00
Simon Rozman
85b85e62e5 wintun: set DI_QUIETINSTALL flag for GUI-less device management
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-06-04 14:45:23 +02:00
Simon Rozman
014f736480 setupapi: define PropChangeParams struct
This structure is required for calling DIF_PROPERTYCHANGE installer
class.

Signed-off-by: Simon Rozman <simon@rozman.si>
2019-06-04 14:45:23 +02:00
Jason A. Donenfeld
da61947ec3 tun: windows: mitigate infinite loop in Flush()
It's possible that for whatever reason, we keep returning EOF, resulting
in repeated close/open/write operations, except with empty packets.
2019-05-31 16:55:03 +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
d4034e5f8a wintun: remove extra / 2019-05-26 02:20:01 +02:00
Simon Rozman
6a0a3a5406 wintun: revise GetInterface()
- Make foreign interface found error numeric to ease condition
  detection.
- Update GetInterface() documentation.
- Make tun.CreateTUN() quit when foreign interface found before
  attempting to create a Wintun interface with a duplicate name.
  Creation is futile.

Signed-off-by: Simon Rozman <simon@rozman.si>
2019-05-24 09:29:57 +02:00
Jason A. Donenfeld
8fdcf5ee30 wintun: never return nil, nil 2019-05-23 15:25:53 +02:00
Simon Rozman
dc9bbec9db setupapi: trim "Get" from getters
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-05-22 19:31:52 +02:00
Jason A. Donenfeld
a6dbe4f475 wintun: don't try to flush interface, but rather delete 2019-05-17 16:06:02 +02:00
Jason A. Donenfeld
95c70b8032 wintun: make certain methods private 2019-05-17 15:01:08 +02:00
Simon Rozman
7d5f5bcc0d wintun: change acronyms to uppercase
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-05-17 10:22:34 +02:00
Jason A. Donenfeld
3bf41b06ae global: regroup all imports 2019-05-14 09:09:52 +02:00
Jason A. Donenfeld
3147f00089 wintun: registry: fix nits 2019-05-11 17:25:48 +02:00
Simon Rozman
6c1b66802f wintun: registry: revise value reading
- Make getStringValueRetry() reusable for reading any value type. This
  merges code from GetIntegerValueWait().
- expandString() >> toString() and extend to support REG_MULTI_SZ
  (to return first value of REG_MULTI_SZ). Furthermore, doing our own
  UTF-16 to UTF-8 conversion works around a bug in windows/registry's
  GetStringValue() non-zero terminated string handling.
- Provide toInteger() analogous to toString()
- GetStringValueWait() tolerates and reads REG_MULTI_SZ too now. It
  returns REG_MULTI_SZ[0], making GetFirstStringValueWait() redundant.

Signed-off-by: Simon Rozman <simon@rozman.si>
2019-05-11 17:14:37 +02:00
Jason A. Donenfeld
5669ed326f wintun: call HrRenameConnection in another thread 2019-05-10 21:31:37 +02:00
Jason A. Donenfeld
2d847a38a2 wintun: add LUID accessor 2019-05-10 21:30:23 +02:00
Jason A. Donenfeld
7a8553aef0 wintun: enumerate faster by using COMPATDRIVER instead of CLASSDRIVER 2019-05-10 20:30:59 +02:00
Jason A. Donenfeld
a6045ac042 wintun: destroy devinfolist after usage 2019-05-10 20:19:11 +02:00
Simon Rozman
1c92b48415 wintun: registry: replace REG_NOTIFY with NOTIFY
Signed-off-by: Simon Rozman <simon@rozman.si>
2019-05-10 18:09:20 +02:00
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