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1748 Commits

Author SHA1 Message Date
Brad Fitzpatrick bcf3719b9e netcheck: add hairpinning detection 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-28 14:26:51 -08:00
Brad Fitzpatrick 1abf2da392 wgengine/magicsock: reset favorite address on handshakes 
Updates #92 (not a complete fix; could be better/faster?)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-28 17:23:09 -05:00
Brad Fitzpatrick 517a91de75 derp/derphttp: fix reconnect behavior 
I broke it in today's 752146a70f.

Added some comments to prevent recurrences.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-28 13:39:48 -08:00
Brad Fitzpatrick d59d0576af derp: don't log on all dropped packets; super spammy 
Signed-off-by: Brad Fitzpatrick <brad@danga.com>
 2020-02-28 13:33:47 -08:00
Brad Fitzpatrick 38acccad09 derp: remove some debug noise I left in 
:(
 2020-02-28 13:20:56 -08:00
Brad Fitzpatrick 752146a70f derp: clean up derphttp client code, use contexts 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-28 13:18:59 -08:00
David Crawshaw cdc10b74f1 ipn: always guard LocalBackend.endpoints with mu 
For #112

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-02-28 15:13:01 -05:00
David Crawshaw 3425d8d84f ipn: always guard LocalBackend.engineStatus with mu 
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-02-28 14:58:52 -05:00
David Crawshaw e7cdc11654 ipn: always guard LocalBackend.netMapCache with mu 
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-02-28 14:39:36 -05:00
Brad Fitzpatrick 67ede8d6d2 wgengine, magicsock: fix SetPrivateKey data race 
Updates #112

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-28 11:15:07 -08:00
Brad Fitzpatrick 4cd3e82bbd go.mod: bump wireguard-go 
Updates #112

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-28 11:15:07 -08:00
Brad Fitzpatrick a6c695ba6b types/key: add IsZero methods 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-28 11:15:07 -08:00
michael wilson 3878f0a67a interfaces: recognize utun as a possible Tailscale interface name prefix 
Signed-off-by: Michael Wilson <mewil@umich.edu>
 2020-02-28 10:16:09 -08:00
Brad Fitzpatrick 07f0fd0fdc version: add a manual date as version for now 
Maybe we'll auto-bump this with a bot over time.

See golang/go#37475 & golang/go#29814

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-28 09:44:34 -08:00
Brad Fitzpatrick f3c0ea23d9 netcheck, stunner: reduce log spam 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-28 09:40:25 -08:00
Brad Fitzpatrick 19b54d0ae7 wgengine: fix a data race on StatusCallback 
Updates tailscale/tailscale#112

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-28 09:32:06 -08:00
David Crawshaw c576a57067 wgengine: avoid holding any locks during HandshakeDone 
Because wgLock is held while some wireguard-go methods run,
trying to hold wgLock during HandshakeDone potentially creates
lock cycles between wgengine and internals of wireguard-go.

Arguably wireguard-go should call HandshakeDone in a new goroutine,
but until its API promises that, don't make any assumptions here.

Maybe for #110.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-02-28 06:32:38 -05:00
David Crawshaw 06bf0d980e go.mod: bump wireguard-go version 
For #110
 2020-02-28 06:21:07 -05:00
David Anderson 78654ee1bd cmd/tailscale: switch to an ffcli based CLI. 
Two commands for now, `up` and `netcheck`. The commands and the flags they take
will change a bunch in the future, but this is good enough to launch on parity
with relaynode.

Signed-Off-By: David Anderson <dave@natulte.net>
 2020-02-28 00:15:25 -08:00
David Crawshaw 4e3ff4b63b controlclient: allow prefixed endpoints in tests 2020-02-27 16:52:14 -05:00
Brad Fitzpatrick 25797c8c2a all: rename deep "Copy" methods to conventional Go name "Clone" 2020-02-27 12:20:29 -08:00
Brad Fitzpatrick 14559340ee Start of netcheck package & including network state in Hostinfo. 
* adds new packet "netcheck" to do the checking of UDP, IPv6, and
  nearest DERP server, and the Report type for all that (and more
  in the future, probably pulling in danderson's natprobe)
* new tailcfg.NetInfo type
* cmd/tailscale netcheck subcommand (tentative name, likely to
  change/move) to print out the netcheck.Report.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-27 11:05:27 -08:00
Brad Fitzpatrick a07af762e4 types/opt: add opt package for a new opt.Bool JSON type 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-27 10:39:42 -08:00
Brad Fitzpatrick c185e6b4b0 stunner: support IPv6, add latency info to callbacks, use unique TxIDs per retry 
And some more docs.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-27 09:23:51 -08:00
Brad Fitzpatrick 00ad93ec25 cmd/derper: add a STUN server 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-26 19:11:14 -08:00
Brad Fitzpatrick 0e128f8f22 stun: add server support 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-26 15:19:32 -08:00
Brad Fitzpatrick 74650d6fb5 go.mod, go.sum: update 2020-02-26 15:19:10 -08:00
Brad Fitzpatrick 14abc82033 stun: check high bits in Is, add tests 
Also use new stun.TxID type in stunner.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-26 11:34:01 -08:00
Brad Fitzpatrick 2489ea4268 stun: fix IPv6 bug, refactor a bit 
Fixes #104

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-26 09:20:46 -08:00
David Crawshaw 6879581891 controlclient: adjust user expiry test 
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-02-26 09:44:42 -05:00
Brad Fitzpatrick eefafad9f8 ipn: fix some mutex/ownership issues 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-25 14:07:43 -08:00
David Crawshaw 6d2ac01464 go.mod: bump wireguard-go version 
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-02-25 17:03:20 -05:00
David Crawshaw 44670d0da9 wgengine: revert wgdev.Close on Close from last commit 
Causes as-yet-unknown problems in some tests.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-02-25 17:00:37 -05:00
wardn 9390a3ef55 wgengine: properly clean up freebsd routes and interfaces on close 
Signed-off-by: wardn <wardn@users.noreply.github.com>
 2020-02-25 16:40:10 -05:00
David Crawshaw 7a3be96199 wgengine: add pinger to generate initial spray packets 
For 3 seconds after a successful handshake, wgengine will send a
ping packet every 300ms to its peer. This ensures the spray logic
in magicsock has something to spray.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-02-25 15:09:08 -05:00
Brad Fitzpatrick 3988ddc85d types/logger: add WithPrefix, use it in two places 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-25 11:35:46 -08:00
Brad Fitzpatrick 758744a4e3 Fix some Hostinfo value usages from the previous commit. 2020-02-25 11:01:20 -08:00
Brad Fitzpatrick d8de11a01b control: make Hostinfo accessed by pointer 
Fix potential races in copying aliased slices by value.

Also few little doc updates.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-25 10:35:51 -08:00
Brad Fitzpatrick 824f825552 tsweb, cmd/derper: move common web/debug stuff from derper to new tsweb 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-25 10:06:56 -08:00
Brad Fitzpatrick 367ffde21a ipn: misc cleanup 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-25 10:05:14 -08:00
Brad Fitzpatrick 04e6b77774 safesocket: delete incorrect build tag 
Leftover from copying one file to another to create safesocket.go
in the earlier documentation change (29f7d64091).
 2020-02-25 09:02:52 -08:00
Brad Fitzpatrick 29f7d64091 safesocket: document 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-25 08:46:34 -08:00
David Crawshaw a6ad3c46e2 magicsock: spray some normal packets after a handshake 
In particular, this is designed to catch the case where a
HandshakeInitiation packet is sent out but the intermediate NATs
have not been primed, so the packet passes over DERP.
In that case, the HandshakeResponse also comes back over DERP,
and the connection proceeds via DERP without ever trying to punch
through the NAT.

With this change, the HandshakeResponse (which was sprayed out
and so primed one NAT) triggers an UpdateDst, which triggers
the extra spray logic.

(For this to work, there has to be an initial supply of packets
to send on to a peer for the three seconds following a handshake.
The source of these packets is left as a future exercise.)

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-02-24 17:29:35 -05:00
Brad Fitzpatrick 8696b17b5f wgengine/magicsock: turn off DERP log spamminess by default 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-24 10:24:12 -08:00
David Anderson accf868130 cmd/mkpkg: add flags for debian scripts. 2020-02-24 09:37:06 -08:00
Brad Fitzpatrick f473965ca1 go.sum: update 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-24 08:48:06 -08:00
Brad Fitzpatrick 7a3b91390b wgengine/magicsock: fix crash in Send when Endpoint isn't an AddrSet 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-24 08:47:20 -08:00
David Crawshaw 868cfae84f wgengine, magicsock: adjust for wireguard-go conn/device package split 
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-02-24 07:30:14 -05:00
David Crawshaw 8994a59e20 go.mod: update wireguard-go version 
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-02-23 13:49:21 -05:00
wardn c51b8c206d wgengine: resolv.conf spelling corrections 
Signed-off-by: wardn <wardn@users.noreply.github.com>
 2020-02-22 06:44:56 -08:00