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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 FitzpatrickandDavid Crawshaw 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 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
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
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
Brad Fitzpatrick 25797c8c2a all: rename deep "Copy" methods to conventional Go name "Clone" 2020-02-27 12:20:29 -08:00
Brad FitzpatrickandBrad 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 FitzpatrickandBrad 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
Brad FitzpatrickandBrad Fitzpatrick eefafad9f8 ipn: fix some mutex/ownership issues 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-25 14:07:43 -08:00
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 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
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
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
Brad Fitzpatrick cc7b9b0dff control/controlclient: fix priority of DERP server, add comment 2020-02-21 14:47:05 -08:00
Brad Fitzpatrick 3317531021 derp: fix JSON field typo, sort fields to make it easier to see inconsistencies 2020-02-21 14:18:09 -08:00
Brad Fitzpatrick 6cd81d5d1f derp: add more derp stats for dropped and received packets 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-21 14:13:50 -08:00
Brad Fitzpatrick c02f4b5a1f control/controlclient: add temporary mechanism to force derp on 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-21 14:09:24 -08:00
Brad Fitzpatrick 525bf1f3d2 wgengine/magicsock: remember fixed port number preference 
So LinkChange events rebind to the same port when possible.
 2020-02-21 13:51:18 -08:00
Brad Fitzpatrick c763901b1a cmd/derper: provide debug access over port 80 to trusted (tailscale) IPs 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-21 11:52:27 -08:00
Brad Fitzpatrick 2612e54ad1 derp, cmd/derper: add debug handlers, stats 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-21 09:35:53 -08:00
Brad Fitzpatrick 433b917977 interfaces, cmd/tsshd: move interface lookup from tsshd to its own package 
For reuse by derper, etc.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-21 08:13:21 -08:00
Brad Fitzpatrick 37e115834e cmd/derper: support logging to logtail 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-21 07:53:22 -08:00
Brad FitzpatrickandBrad Fitzpatrick 379a3125fd derp, wgengine/magicsock: support more than just packets from Client.Recv 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-20 22:08:13 -08:00
Brad FitzpatrickandDave Anderson 88f1cc0c98 derp, cmd/derper: add rate limiting support, add default 5Mbps limit 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-20 15:26:30 -08:00
Brad Fitzpatrick 1166c34f6c derp: fix staticcheck warning 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-20 14:49:47 -08:00
Brad Fitzpatrick 322cb58b14 derp: deflake test I flaked up in earlier change 
I broke an invariant in 11048b8932 (it was even nicely
documented then).

Also clean up the test a bit from while I was debugging it.

Fixes #84

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-20 14:41:39 -08:00
Brad FitzpatrickandBrad Fitzpatrick f029c4c82d derp: change the protocol framing to always include a length 
Addresses one of crawshaw's TODOs.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-20 13:37:44 -08:00
Brad Fitzpatrick 11048b8932 derp: add docs on current protocol overview, break accept apart a bit 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-20 09:57:05 -08:00
Brad Fitzpatrick 79af6054bf derp: don't start sending keepalives to client until after serverInfo sent 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-20 09:34:01 -08:00
Brad Fitzpatrick 1155716318 derp: rename some things in the client, add some docs 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-20 09:11:56 -08:00
Brad Fitzpatrick 4b461c2e77 derp: rename some things in the server, add some docs 2020-02-20 08:50:25 -08:00
Brad FitzpatrickandBrad Fitzpatrick d298d5b1f8 wgengine/magicsock: support multiple derp servers, and not just for handshakes 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-20 08:10:12 -08:00
Brad Fitzpatrick f266e2d1eb version: add CmdName func for future use by logpolicy 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>

Change-Id: I02a7c907844f71242ef06ed097f2a92ece7ae091
 2020-02-19 11:34:45 -08:00
Brad Fitzpatrick b72e6446e2 cmd/derper: add a basic DERP server 
Mostly Crawshaw's earlier code, refactored a bit.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-18 11:25:11 -08:00
Brad Fitzpatrick fd1aa4f7f6 wgengine/magicsock: add a reSTUN method 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-18 10:55:36 -08:00
Brad Fitzpatrick 619697063e derp: more misc cleanups 
And add an explicit derphttp.Client.Connect in the test now that it's
done lazily.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-18 10:09:37 -08:00
Brad Fitzpatrick e06ca40650 wgengine, magicsock, derp: misc cleanups, docs 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-18 08:58:00 -08:00
Brad FitzpatrickandBrad Fitzpatrick 259406e797 derp: move away from [32]byte key types 
And some minor cleanup in the process.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-17 14:18:09 -08:00
Brad FitzpatrickandBrad Fitzpatrick 769e25e37b derp: use new types/key package 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-17 13:29:49 -08:00
Brad FitzpatrickandBrad Fitzpatrick 997678f540 wgengine/monitor: make Close not block forever on Linux 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-17 11:39:33 -08:00
Brad FitzpatrickandBrad Fitzpatrick 7f5e3febe5 wgengine: move link monitor to be owned by the engine, not the router 
And make the monitor package portable with no-op implementations on
unsupported operating systems.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-17 09:53:17 -08:00
Brad Fitzpatrick 80d5d4bdfe ipn: fix test breakage from earlier 79295b1138 
This test is skipped in tailscale/tailscale because it depends on
parts that haven't been released yet and was thus overlooked in the
git commit 79295b1138 cleanup.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-17 08:19:50 -08:00
Brad FitzpatrickandBrad Fitzpatrick 79295b1138 wgengine: simplify, change some signatures 
* make RouterGen return an error, not take both tunname and tundev
* also remove RouteGen taking a wireguard/device.Device; currently unused
* remove derp parameter (it'll work differently)
* unexport NewUserspaceRouter in per-OS impls, add documented wrapper

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-17 08:04:31 -08:00
Brad Fitzpatrick 9dbc52bb5b go.mod: fix wireguard-go dep 
Fixes #59

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-15 18:50:05 -08:00
Brad FitzpatrickandBrad Fitzpatrick 2896be60db Move "logger" package to under types, now that we have it. 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-14 20:23:05 -08:00
Brad FitzpatrickandBrad Fitzpatrick c393f0bfae Dockerfile: optimize incremental build a bit, copy all binaries to output 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-14 13:39:59 -08:00
Brad FitzpatrickandBrad Fitzpatrick 747c7d7ce2 types/empty: add Message, stop using mysterious *struct{} 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-14 13:35:49 -08:00
Brad FitzpatrickandBrad Fitzpatrick 587c3fcac4 control/controlclient, wgengine/magicsock: misc cleanups 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-14 09:50:08 -08:00
Brad FitzpatrickandBrad Fitzpatrick fbfe474492 logpolicy: add some docs 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-14 07:51:51 -08:00
Brad FitzpatrickandBrad Fitzpatrick b5346fe7b4 meta: move cross-compiled builds to their own parallel jobs 
And add FreeBSD.

Fixes #37

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-13 11:28:07 -08:00
Brad Fitzpatrick c773abde77 wgengine: fix nil pointer deref crash from earlier change 
Fixes #45
 2020-02-13 08:59:31 -08:00
Brad FitzpatrickandBrad Fitzpatrick 745c8c92b1 wgengine: fix windows build for winipcfg-go 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-12 22:05:13 -08:00
Brad Fitzpatrick 13dc12814e cmd/tsshd: fix log text 2020-02-12 14:51:47 -08:00
Brad Fitzpatrick d404f1caed cmd/tsshd: add basic SSH server 2020-02-12 14:46:59 -08:00
Brad FitzpatrickandBrad Fitzpatrick 7e5e32775a wgengine: flesh out some docs, minor cleanups 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-12 13:37:45 -08:00
Brad FitzpatrickandBrad Fitzpatrick 819daf10e2 wgengine: flesh out some docs 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-12 13:37:45 -08:00
Brad Fitzpatrick a59dc5f155 Use logger.Logf consistently. It was used in most places. 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-02-11 09:38:32 -08:00
Brad Fitzpatrick fef2548981 README: https, links, mention Go version, DCO 2020-02-10 14:01:37 -08:00
Brad Fitzpatrick 516a15ee58 cmd: add import comments 
See https://golang.org/cmd/go/#hdr-Import_path_checking
 2020-02-10 13:32:37 -08:00
Brad Fitzpatrick 1f1dc3ad14 version: fix path for git describe of version for redo 2020-02-10 09:19:57 -08:00
Brad Fitzpatrick a1fbf25f77 version: add stub; use rsc.io/goversion/version later 2020-02-10 09:00:30 -08:00