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Author SHA1 Message Date
Brad Fitzpatrick
0f64d7f9cc wgengine: remove a tiny allocation 
Drop in the bucket compared to the larger issues, but noticed it
when looking at pprof.
 2020-04-07 22:23:40 -07:00
Brad Fitzpatrick
59800138ff bump wireguard dep 2020-04-07 10:02:34 -07:00
Brad Fitzpatrick
277fe84c6b version: don't depend on goversion on ios 2020-04-07 09:28:09 -07:00
Brad Fitzpatrick
2776209e49 portlist: don't depend on osexec package on ios, even if it's unused 
Continuation of 5bb14c07dc.

The earlier commit provided the space savings (as the linker could see
through that osexec was unused at runtime), but it didn't clean up the
dep graph (from go list -json or godepgraph).

This removes the netstat.go file from the build too, just so the dep list
looks more reasonable.
 2020-04-07 08:09:13 -07:00
Brad Fitzpatrick
5bb14c07dc portlist: don't depend on tempfork/osexec on iOS, saves 90KB 
This gives us 90KB more of memory on iOS, as it shrinks the
NetworkExtension binary by 90KB.

The netstat binary isn't available in the network extension anyway, so
no point pulling in the osexec package which'll just fail to find
netstat anyway.
 2020-04-07 07:58:09 -07:00
Brad Fitzpatrick
ec0cd60fc3 portlist: fail earlier, more nicely on iOS 2020-04-06 20:11:24 -07:00
David Anderson
96b2f20c5b types/logger: add Discard helper. 2020-04-06 19:15:19 -07:00
Dmitry Adamushko
44434fdc82 derp/derp_server: fixed unbalanced {register,unregister}Client() calls. 
Signed-off-by: Dmitry Adamushko <da@stablebits.net>
 2020-04-06 15:13:47 -07:00
Blake Gentry
e19287f60f wgengine/magicsock: fix Conn docs type reference 
The docs on magicsock.Conn stated that they implemented the
wireguard/device.Bind interface, yet this type does not exist. In
reality, the Conn type implements the wireguard/conn.Bind interface.

I also fixed a small typo in the same file.

Signed-off-by: Blake Gentry <blakesgentry@gmail.com>
 2020-04-06 15:11:56 -07:00
Brad Fitzpatrick
71d6738333 tstime: change an Errorf+return to Fatalf in subtest 
Forgot to git add this during review. Fail.
 2020-04-06 08:20:15 -07:00
Brad Fitzpatrick
febdac0499 tstime: write Parse3339 parse that doesn't use time.Parse 
It doesn't allocate and it's half the time of time.Parse (which
allocates), and 2/3rds the time of time.ParseInLocation (which
doesn't).

Go with a UTC time:

BenchmarkGoParse3339/Z-8                 2200995               534 ns/op               0 B/op          0 allocs/op
BenchmarkGoParse3339/Z-8                 2254816               554 ns/op               0 B/op          0 allocs/op
BenchmarkGoParse3339/Z-8                 2159504               522 ns/op               0 B/op          0 allocs/op

Go allocates with a "-08:00" suffix instead of ending in "Z":

BenchmarkGoParse3339/TZ-8                1276491               884 ns/op             144 B/op          3 allocs/op
BenchmarkGoParse3339/TZ-8                1355858               942 ns/op             144 B/op          3 allocs/op
BenchmarkGoParse3339/TZ-8                1385484               911 ns/op             144 B/op          3 allocs/op

Go doesn't allocate if you use time.ParseInLocation, but then you need
to parse the string to find the location anyway, so might as well go
all the way (below).

BenchmarkGoParse3339InLocation-8         1912254               597 ns/op               0 B/op          0 allocs/op
BenchmarkGoParse3339InLocation-8         1980043               612 ns/op               0 B/op          0 allocs/op
BenchmarkGoParse3339InLocation-8         1891366               612 ns/op               0 B/op          0 allocs/op

Parsing RFC3339 ourselves, UTC:

BenchmarkParse3339/Z-8                   3889220               307 ns/op               0 B/op          0 allocs/op
BenchmarkParse3339/Z-8                   3718500               309 ns/op               0 B/op          0 allocs/op
BenchmarkParse3339/Z-8                   3621231               303 ns/op               0 B/op          0 allocs/op

Parsing RFC3339 ourselves, with timezone (w/ *time.Location fetched
from sync.Map)

BenchmarkParse3339/TZ-8                  3019612               418 ns/op               0 B/op          0 allocs/op
BenchmarkParse3339/TZ-8                  2921618               401 ns/op               0 B/op          0 allocs/op
BenchmarkParse3339/TZ-8                  3031671               408 ns/op               0 B/op          0 allocs/op

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-04-06 08:19:17 -07:00
Brad Fitzpatrick
02948d2c86 Dockerfile: add some usage docs, bump to Go 1.14 2020-04-06 07:57:47 -07:00
Brad Fitzpatrick
d503dee6f1 tstime: add new package for time utilities, starting with Parse3339 
Go's time.Parse always allocates a FixedZone for time strings not in
UTC (ending in "Z"). This avoids that allocation, at the cost of
adding a cache.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-04-05 20:05:49 -07:00
David Anderson
4e0ee141e8 derp/derpmap: add derp5 (Sydney) to prod map. 
Signed-off-by: David Anderson <dave@natulte.net>
 2020-04-05 18:55:29 -07:00
Brad Fitzpatrick
996bf9cae7 logtail: don't send a User-Agent 
Just useless bytes on the wire. Especially with HTTP/1.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-04-05 13:16:56 -07:00
Brad Fitzpatrick
7bf436ba30 tsweb: add some Benchmarks 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-04-05 13:16:36 -07:00
Brad Fitzpatrick
64334143a1 tsweb: rename Handler to ReturnHandler 
The name's been bugging me for a long time.

I liked neither the overlap between tsweb.Handler and http.Handler,
nor the name "ServeHTTPErr" which sounds like it's an error being
returned, like it's an error handler and not sometimes a happy path.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-04-05 13:16:36 -07:00
Brad Fitzpatrick
bdc55d7091 logtail: add ParsePrivateID 2020-04-05 09:15:15 -07:00
Brad Fitzpatrick
50aeb5b9ad wgengine: unexport some windows funcs 2020-04-05 08:23:53 -07:00
David Anderson
b446de103a tsweb: fix tests. 
Signed-off-by: David Anderson <dave@natulte.net>
 2020-04-05 00:22:03 -07:00
David Anderson
af3a9dfad6 tsweb: add a StdHandler that doesn't log 200 responses. 
Signed-off-by: David Anderson <dave@natulte.net>
 2020-04-05 00:14:38 -07:00
David Anderson
ba2774ea27 cmd/mkpkg: support depending on stuff. 
Signed-off-by: David Anderson <dave@natulte.net>
 2020-04-04 18:38:09 -07:00
David Anderson
362d6af4e2 cmd/tailscaled: set CacheDirectory in service. 
Signed-off-by: David Anderson <dave@natulte.net>
 2020-04-04 16:52:05 -07:00
Brad Fitzpatrick
e71a7c7a2c logtail: read to EOF on chunked response 
We'll be fixing the server so this won't trigger in practice,
but it demos the connection reuse problem.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-04-04 16:12:15 -07:00
Brad Fitzpatrick
fcb6a34f4b logtail: reduce allocations encoding text 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-04-04 16:12:02 -07:00
Brad Fitzpatrick
2863e49db9 tsweb: don't flush, treat no-op Handler as 200, like Go 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-04-04 16:11:53 -07:00
Brad Fitzpatrick
3b4b17d239 logpolicy: log on dials, add knob to force HTTP/1 for log uploads 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-04-04 14:46:41 -07:00
David Anderson
5d995d9d6b tsweb: add a test case for nil child errors in tsweb.Error. 
Signed-off-by: David Anderson <dave@natulte.net>
 2020-04-03 10:37:39 -07:00
David Anderson
2c2dff9559 tsweb: don't panic if we get a tsweb.Error with no embedded error. 
It's technically weird to return a tsweb.Error with no child err,
but it's a sensible thing to want to do, and we shouldn't panic
if it happens.

Signed-off-by: David Anderson <dave@natulte.net>
 2020-04-03 10:36:21 -07:00
David Crawshaw
2f8719741e controlclient: do not send duplicate hostinfo/netinfo 
This should never happen, so log when it does so we can fix it.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
 2020-04-02 13:12:29 +11:00
David Anderson
48d7ee1c6a cmd/microproxy: adjust to export node stats and a Go expvar server's stats. 
This is a temporary specialization to what tailscale prod needs right now,
it'll go back to something more generic later.
 2020-04-01 16:50:02 -07:00
Brad Fitzpatrick
8ca796d144 ipn, ipn/policy: filter portlist to a short list of "interesting" ports 
Adds new package ipn/policy to be shared between node client & control server.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-04-01 10:03:44 -07:00
Brad Fitzpatrick
c6aa5b639f tailcfg: clarify Hostinfo.OS doc 2020-04-01 09:27:35 -07:00
Brad Fitzpatrick
4524dcf51e version: move runtime.OS to tailscale OS mapping func to version 
So other code can use this without duplicating the policy.
 2020-04-01 08:50:56 -07:00
David Anderson
c14bc028ac cmd/microproxy: tiny TLS proxy that borrows autocert x509 certs. 2020-03-31 12:24:33 -07:00
Brad Fitzpatrick
1df3c8d02a derp, netcheck: make tests listen on localhost only 
avoid macOS firewall pop-ups
 2020-03-30 11:29:08 -07:00
Brad Fitzpatrick
5362e952e1 safesocket: gofmt 
Was developed on a random machine without my normal environment.
 2020-03-30 11:23:18 -07:00
Brad Fitzpatrick
fee2d9fad4 safesocket: connect to the macOS network extension on darwin (as last resort) 
(For cmd/tailscale CLI support on macOS)

Signed-off-by: Brad Fitzpatrick <brad@danga.com>
 2020-03-29 22:15:28 -07:00
David Crawshaw
0590ad68be controlclient, ipn: adjust tests for authURL semantic changes 
The tests cheat at filling out web forms by directly POSTing to
the target. The target for authURLs has changed slightly, the base
authURL now redirects the user to the login page.

Additionally, the authURL cycle now checks the cookie is set
correctly, so we add cookie jars where necessary to pass the
cookie through.
 2020-03-30 15:51:46 +11:00
Brad Fitzpatrick
a4ef345737 cmd/tailscale: add status subcommand 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-27 20:34:36 -07:00
Brad Fitzpatrick
810c1e9704 types/key: make Public implement TextMarshaler, TextUnmarshaler 
So it can be a map key with encoding/json
 2020-03-27 13:03:35 -07:00
Brad Fitzpatrick
f51f18b42b ipn: move FakeBackend to a test-only file 2020-03-27 13:02:33 -07:00
Brad Fitzpatrick
8ebee05fbd cmd/tailscale: remove unnecessary logpolicy/logtail logging 2020-03-27 08:27:36 -07:00
David Anderson
80261b02ba testy: make safe for concurrent use. 
Signed-off-by: David Anderson <dave@natulte.net>
 2020-03-27 03:05:34 -07:00
David Anderson
1fdadf06f1 testy: don't give Clock.Step==0 magical behavior. 
Turns out it's sometimes useful to stop time entirely.

Signed-off-by: David Anderson <dave@natulte.net>
 2020-03-27 00:38:39 -07:00
Brad Fitzpatrick
8b3f6be008 control/controlclient: flip IPv6 to be on by default 
The DEBUG_INCLUDE_IPV6 environment variable is now an opt-out.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-26 22:02:56 -07:00
Brad Fitzpatrick
322499473e cmd/tailscaled, wgengine, ipn: add /debug/ipn handler with world state 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-26 14:26:24 -07:00
David Anderson
dbca186a64 stunner: fix data race. 
In very low-latency conditions, a STUN request can complete before
the startup loop has finished firing off goroutines, leading to
a concurrent map mutation.
 2020-03-25 23:11:22 -07:00
Brad Fitzpatrick
7fb8d873ac logpolicy: don't log timestamp when running under systemd 
It'll do it anyway.

Makes journalctl -fu cleaner.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-25 21:03:06 -07:00
Brad Fitzpatrick
2d48f92a82 wgengine/magicsock: re-stun every [20,27] sec, not 28 
28 is cutting it close, and we think jitter will help some spikes
we're seeing.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-03-25 14:25:33 -07:00