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22 commits

Author SHA1 Message Date
Josh Bleecher Snyder 822f5a6d70 conn: unify code in StdNetBind.Send 
The sending code is identical for ipv4 and ipv6;
select the conn, then use it.

Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>
 2021-03-30 12:09:32 -07:00
Jason A. Donenfeld 0eb7206295 conn: linux: unexport mutex 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-03-08 21:04:09 -07:00
Jason A. Donenfeld 3c11c0308e conn: implement RIO for fast Windows UDP sockets 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-02-25 15:08:08 +01:00
Jason A. Donenfeld 9a29ae267c device: test up/down using virtual conn 
This prevents port clashing bugs.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-02-23 20:00:57 +01:00
Jason A. Donenfeld a4f8e83d5d conn: make binds replacable 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-02-23 20:00:57 +01:00
Jason A. Donenfeld 4e439ea10e conn: bump to 1.16 and get rid of NetErrClosed hack 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-02-16 21:05:25 +01:00
Jason A. Donenfeld aabc3770ba conn: close old fd before trying again 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-02-10 00:43:31 +01:00
Jason A. Donenfeld 5cdb862f15 conn: use errors.Is for unwrapping 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-02-09 19:46:57 +01:00
Jason A. Donenfeld 30b96ba083 conn: try harder to have v4 and v6 ports agree 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-02-09 18:45:12 +01:00
Jason A. Donenfeld d4112d9096 global: bump copyright 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-01-28 17:52:15 +01:00
Brad Fitzpatrick 23b2790aa0 conn: fix interface parameter name in Bind interface docs 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2021-01-26 15:20:22 +01:00
Jason A. Donenfeld 294d3bedf9 device: allow compiling with Go 1.15 
Until we depend on Go 1.16 (which isn't released yet), alias our own
variable to the private member of the net package. This will allow an
easy find replace to make this go away when we eventually switch to
1.16.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-01-20 20:12:32 +01:00
Josh Bleecher Snyder f07177c762 conn: remove _ method receiver 
Minor style fix.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
 2021-01-20 20:03:40 +01:00
Jason A. Donenfeld ea6c1cd7e6 device: receive: do not exit immediately on transient UDP receive errors 
Some users report seeing lines like:

> Routine: receive incoming IPv4 - stopped

Popping up unexpectedly. Let's sleep and try again before failing, and
also log the error, and perhaps we'll eventually understand this
situation better in future versions.

Because we have to distinguish between the socket being closed
explicitly and whatever error this is, we bump the module to require Go
1.16.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-01-08 14:30:04 +01:00
Jason A. Donenfeld 3b3de758ec conn: linux: do not allow ReceiveIPvX to race with Close 
If Close is called after ReceiveIPvX, then ReceiveIPvX will block on an
invalid or potentially reused fd.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-01-07 17:08:58 +01:00
Jason A. Donenfeld 890cc06ed5 conn: do not SO_REUSEADDR on linux 
SO_REUSEADDR does not make sense for unicast UDP sockets.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2021-01-07 14:49:44 +01:00
David Crawshaw 00bcd865e6 conn: add comments saying what uses these interfaces 
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-06-22 10:40:59 +10:00
Jason A. Donenfeld c403da6a39 conn: unbreak boundif on android 
Another thing never tested ever.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2020-06-07 01:48:28 -06:00
Jason A. Donenfeld d6de6f3ce6 conn: remove useless comment 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2020-06-07 01:37:01 -06:00
Jason A. Donenfeld 59e556f24e conn: fix windows situation with boundif 
This was evidently never tested before committing.

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2020-06-07 01:26:25 -06:00
Jason A. Donenfeld db0aa39b76 global: update header comments and modules 
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
 2020-05-02 02:08:26 -06:00
David Crawshaw 203554620d conn: introduce new package that splits out the Bind and Endpoint types 
The sticky socket code stays in the device package for now,
as it reaches deeply into the peer list.

This is the first step in an effort to split some code out of
the very busy device package.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-05-02 01:46:42 -06:00