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Author SHA1 Message Date
Brad Fitzpatrick 4800926006 wgengine/magicsock: add AddrSet appendDests+UpdateDst tests 2020-03-09 09:13:28 -07:00
Brad FitzpatrickandBrad Fitzpatrick f42b9b6c9a wgengine/magicsock: don't discard UDP packet on UDP+DERP race 
Fixes #155

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-07 14:09:06 -08:00
Brad Fitzpatrick f6dd2128d9 version: bump 2020-03-06 14:57:27 -08:00
Brad Fitzpatrick a9cd8f31de tsweb: don't double import expvar; appease staticcheck 2020-03-06 13:08:32 -08:00
Brad Fitzpatrick 890f5dff40 tsweb: export runtime.MemStats var in Prometheus format 2020-03-06 13:02:01 -08:00
Brad Fitzpatrick 8abdbbdd1f cmd/derper: also link to /debug/varz 2020-03-06 13:02:01 -08:00
Brad Fitzpatrick 946df89fa6 types/logger: add adapters for Logf to std Logger/Writer 2020-03-06 12:00:24 -08:00
Brad FitzpatrickandBrad Fitzpatrick 61d83f759b wgengine/magicsock: remove redundant derpMagicIP comparison 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-06 11:31:39 -08:00
Brad Fitzpatrick fbab12c94c wgengine/magicsock: skip netcheck if external STUN aren't in use 
Updates #146 (not a complete fix yet probably)
 2020-03-06 07:47:54 -08:00
Brad Fitzpatrick fe0051fafd wgengine/magicsock: expand AddrSet.addrs comment 2020-03-05 21:17:41 -08:00
Brad Fitzpatrick e733fa6f7e derp: add some varz tests for active/home conns 2020-03-05 20:29:07 -08:00
Brad Fitzpatrick dd456f04c5 derp: actually record client's preferred bit 2020-03-05 19:02:54 -08:00
Brad Fitzpatrick 61f3fda405 tsweb: let expvar.Ints be gauges too 2020-03-05 15:10:01 -08:00
Brad Fitzpatrick 6978b93bdd derp, magicsock: track home (preferred) vs visiting connections for stats 2020-03-05 15:00:56 -08:00
Brad Fitzpatrick 12b77f30ad wgengine/magicsock: close stale DERP connections 2020-03-05 12:49:37 -08:00
Brad Fitzpatrick cf4aacde57 derp/derphttp: appease staticcheck 2020-03-05 12:34:57 -08:00
Brad Fitzpatrick 2cff9016e4 net/dnscache: add overly simplistic DNS cache package for selective use 
I started to write a full DNS caching resolver and I realized it was
overkill and wouldn't work on Windows even in Go 1.14 yet, so I'm
doing this tiny one instead for now, just for all our netcheck STUN
derp lookups, and connections to DERP servers. (This will be caching a
exactly 8 DNS entries, all ours.)

Fixes #145 (can be better later, of course)
 2020-03-05 12:23:37 -08:00
Brad Fitzpatrick a36ccb8525 wgengine/magicsock: actually add to the activeDerp map 
Fixes bug just introduced in 8f9849c140; not tested enough :(
 2020-03-05 12:23:37 -08:00
Brad Fitzpatrick 8f9849c140 wgengine/magicsock: collapse three DERP maps down into one 2020-03-05 08:54:08 -08:00
Brad Fitzpatrick 7e1bed82bd go.sum: update 2020-03-05 08:51:21 -08:00
Brad Fitzpatrick 40ebba1373 magicsock: use [unexpected] convention more 
Fixes #136 (not entirely, but we have a convention now)
 2020-03-05 08:18:55 -08:00
Brad Fitzpatrick 848a2bddf0 wgengine/magicsock: update set of DERP nodes 2020-03-05 08:18:55 -08:00
Brad Fitzpatrick 57de94c7aa tsweb: add /debug/ access via &debugkey + TS_DEBUG_KEY_PATH 2020-03-04 13:49:30 -08:00
Brad Fitzpatrick ff6b3c2c38 netcheck: include two more DERP nodes, show more in CLI report 2020-03-04 13:40:49 -08:00
Brad FitzpatrickandBrad Fitzpatrick eac62ec5ff ipn, wgengine/magicsock: add ipn.Prefs.DisableDERP bool 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-04 12:53:37 -08:00
Brad FitzpatrickandBrad Fitzpatrick bf704a5218 derp: protocol negotiation, add v2: send src pub keys to clients in packets 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-04 09:55:13 -08:00
Brad Fitzpatrick 596fd449b9 netcheck: add TODO about alternate timing strategies 2020-03-04 08:20:38 -08:00
Brad FitzpatrickandBrad Fitzpatrick b27d4c017a magicsock, wgengine, ipn, controlclient: plumb regular netchecks to map poll 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-04 08:19:45 -08:00
Brad Fitzpatrick 4cf5ac3060 ipn/ipnserver: remove unnecessary closure parameter 2020-03-03 19:38:01 -08:00
Brad Fitzpatrick 724c37fb41 wgengine/magicsock: start tracking nearest DERP node 2020-03-03 17:50:17 -08:00
Brad FitzpatrickandBrad Fitzpatrick e371520cc5 tsweb, derp: add expvar http.Handler for Prometheus's format 
And add some opinions.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-03 13:59:16 -08:00
Brad FitzpatrickandBrad Fitzpatrick 89a2c3eb04 wgengine: don't create duplicate iptables rules on Linux, clean up 
Fixes #131

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-03 13:46:53 -08:00
Brad FitzpatrickandBrad Fitzpatrick dd68debd64 cmd/derper: set autocert Email 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-03 13:30:50 -08:00
Brad Fitzpatrick 68ff31a0ba ipn: have NewFileStore try to create directories as needed 2020-03-03 11:51:44 -08:00
Brad Fitzpatrick b3d9eab1fe safesocket: make some effort to create parent directory of sock 2020-03-03 11:47:21 -08:00
Brad Fitzpatrick 383d86df5f paths: remove some debug logging I left in 2020-03-03 11:45:49 -08:00
Brad Fitzpatrick 65e7c58aa4 cmd/tailscale, cmd/tailscaled, paths: add paths package for default paths 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-03 09:36:18 -08:00
Brad Fitzpatrick 06092a3af3 ipn/ipnserver: document potential race, start on test for it 2020-03-03 09:15:11 -08:00
Brad Fitzpatrick ef1f967ec0 ipn: remove an unnecessary named parameter in doc 2020-03-03 08:05:11 -08:00
Brad Fitzpatrick 844d991baf netcheck: add Report.Clone, return cloned report to avoid races on late replies 2020-03-02 15:02:34 -08:00
Brad Fitzpatrick 657f9593ae Reduce some logspam. 2020-03-02 14:55:12 -08:00
Brad Fitzpatrick 4675c70464 wgengine/magicsock: check STUN regularly 2020-03-02 12:37:52 -08:00
Brad Fitzpatrick 7172f3dbf4 version: add IsMobile func 
And use it control/controlclient.
 2020-03-02 12:37:28 -08:00
Brad Fitzpatrick 11489a6e67 go.sum: add lines 2020-03-02 11:07:42 -08:00
Brad Fitzpatrick bc7bc43fb8 magicsock, interfaces: move some code from magicsock to interfaces 2020-03-02 10:38:44 -08:00
Brad Fitzpatrick af7a01d6f0 wgengine/magicsock: drop donec channel, rename epUpdateCtx to serve its purpose 2020-03-02 09:31:25 -08:00
Brad Fitzpatrick a399ef3dc7 cmd/derper: appease staticcheck 2020-03-02 08:59:50 -08:00
Brad Fitzpatrick 051b6ef141 cmd/derper: accept more LetsEncrypt hostnames without explicit config 2020-03-02 08:55:44 -08:00
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