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114 Commits

Author SHA1 Message Date
Brad Fitzpatrick
bce865b61b logpolicy: migrate from x/crypto/ssh/terminal to x/term 2020-12-09 15:28:31 -08:00
Brad Fitzpatrick
9cb6ee3777 go.mod, go.sum: update 2020-12-08 15:23:56 -08:00
Brad Fitzpatrick
442d1873ec go.mod: bump tailscale/wireguard-go 2020-12-07 14:02:05 -08:00
Josh Bleecher Snyder
aa9d7f4665 tstime: add Parse3339B, for byte slices 
Use go4.org/mem for memory safety.
A slight performance hit, but a huge performance win
for clients who start with a []byte.
The perf hit is due largely to the MapHash call, which adds ~25ns.
That is necessary to keep the fast path allocation-free.

name                     old time/op    new time/op    delta
GoParse3339/Z-8             281ns ± 1%     283ns ± 2%     ~     (p=0.366 n=9+9)
GoParse3339/TZ-8            509ns ± 0%     510ns ± 1%     ~     (p=0.059 n=9+9)
GoParse3339InLocation-8     330ns ± 1%     330ns ± 0%     ~     (p=0.802 n=10+6)
Parse3339/Z-8              69.3ns ± 1%    74.4ns ± 1%   +7.45%  (p=0.000 n=9+10)
Parse3339/TZ-8              110ns ± 1%     140ns ± 3%  +27.42%  (p=0.000 n=9+10)
ParseInt-8                 8.20ns ± 1%    8.17ns ± 1%     ~     (p=0.452 n=9+9)

name                     old alloc/op   new alloc/op   delta
GoParse3339/Z-8             0.00B          0.00B          ~     (all equal)
GoParse3339/TZ-8             160B ± 0%      160B ± 0%     ~     (all equal)
GoParse3339InLocation-8     0.00B          0.00B          ~     (all equal)
Parse3339/Z-8               0.00B          0.00B          ~     (all equal)
Parse3339/TZ-8              0.00B          0.00B          ~     (all equal)

name                     old allocs/op  new allocs/op  delta
GoParse3339/Z-8              0.00           0.00          ~     (all equal)
GoParse3339/TZ-8             3.00 ± 0%      3.00 ± 0%     ~     (all equal)
GoParse3339InLocation-8      0.00           0.00          ~     (all equal)
Parse3339/Z-8                0.00           0.00          ~     (all equal)
Parse3339/TZ-8               0.00           0.00          ~     (all equal)


Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
 2020-11-19 14:47:11 -08:00
Brad Fitzpatrick
cccdd81441 go.mod: update some deps to get past a wireguard-windows checkptr fix 2020-11-13 11:55:13 -08:00
David Anderson
ce45f4f3ff wgengine/filter: inline ip6InList into match. 
matchIPsOnly gets 5% slower when inlining, despite significantly reduced
memory ops and slightly tighter code.

Part of #19.

Filter/tcp6_syn_in-8     45.5ns ± 1%    42.4ns ± 2%   -6.86%  (p=0.000 n=10+10)
Filter/udp6_in-8          107ns ± 2%      94ns ± 2%  -11.50%  (p=0.000 n=9+10)

Signed-off-by: David Anderson <danderson@tailscale.com>
 2020-11-12 21:41:47 -08:00
David Anderson
3d34128171 go.mod: update to new wireguard-go. 2020-10-26 19:23:01 +00:00
Alex Brainman
f2ce64f0c6 wgengine/router: unfork winipcfg-go package, use upstream 
Use golang.zx2c4.com/wireguard/windows/tunnel/winipcfg
instead of github.com/tailscale/winipcfg-go package.

Updates #760

Signed-off-by: Alex Brainman <alex.brainman@gmail.com>
 2020-10-13 09:21:22 -07:00
Brad Fitzpatrick
63d65368db go.mod: bump wireguard-go for x/sys/unix symbol loss 
Updates golang/go#41868
 2020-10-08 09:47:58 -07:00
Josh Bleecher Snyder
a5103a4cae all: upgrade to latest version of depaware 2020-10-02 20:35:13 -07:00
Brad Fitzpatrick
56a787fff8 go.mod, go.sum: bump wireguard-go 2020-09-21 15:22:56 -07:00
Christina Wen
f0e9dcdc0a
wgengine/router: restore /etc/resolv.conf after tailscale down is called 
This change is to restore /etc/resolv.conf after tailscale down is called. This is done by setting the dns.Manager before errors occur. Error collection is also added.

Fixes #723
 2020-09-17 16:40:22 -04:00
Brad Fitzpatrick
3aeb2e204c go.mod: bump github.com/tailscale/winipcfg-go for some Windows fixes 2020-09-16 14:49:00 -07:00
Josh Bleecher Snyder
3f4d93feb2 go.mod: bump depaware to get diffs out of -check, again 
I had to use

go get -u github.com/tailscale/depaware@e09ee10c18249e4bf198e66bbd47babcd502637a

to force it to the correct version; it kept selecting head~1.

Maybe because the branch is called main instead of master?
Maybe because of some delay?
 2020-09-14 16:25:09 -07:00
Josh Bleecher Snyder
41f6c78c53 go.mod: bump depaware to get diffs out of -check 2020-09-14 13:25:28 -07:00
Brad Fitzpatrick
22ed3c503e
Add depaware.txt files and GitHub checks. (#745) 
See https://github.com/tailscale/depaware

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-09-09 12:11:46 -07:00
Josh Bleecher Snyder
3b05cbacfb go.mod: update wireguard-go version 2020-09-02 12:22:49 -07:00
Brad Fitzpatrick
f915ab6552 net/tshttpproxy: add start of Kerberos Negotiate auth to proxies on Windows 
For now only used by a new cmd/tailscale debug --get-url
subcommand. Not yet wired up to the places making HTTP requests.

Updates tailscale/corp#583
 2020-08-25 13:49:06 -07:00
Brad Fitzpatrick
c5eb57f4d6 net/tshttpproxy: new package, support WPAD/PAC proxies on Windows 
Updates tailscale/corp#553

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-08-18 15:40:56 -07:00
Brad Fitzpatrick
87cbc067c2 cmd/tailscale/cli: validate advertised routes' IP address-vs-network bits 
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-08-10 09:16:49 -07:00
Brad Fitzpatrick
b840e7dd5b go mod tidy 2020-08-06 21:24:09 -07:00
Josh Bleecher Snyder
1b27eb431a go.mod: update to newly rebased wireguard-go 2020-08-06 17:50:31 -07:00
Brad Fitzpatrick
43e2efe441 go mod tidy 2020-07-27 10:20:30 -07:00
Brad Fitzpatrick
648268192b go.mod: bump wireguard-go 2020-07-24 08:54:17 -07:00
Dmytro Shynkevych
3efc29d39d
go.mod: bump netaddr. 
Closes #567.

Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
 2020-07-18 04:28:03 -04:00
Brad Fitzpatrick
cdfea347d0 wgengine: update for tailscale/wireguard-go API changes 
* update to new HandshakeDone signature
* use new Device.IpcGetOperationFiltered call to avoid sending allowed_ips

See dd6c1c8fe1
 2020-07-15 20:30:45 -07:00
Dmytro Shynkevych
30bbbe9467
wgengine/router: dns: unify on *BSD, multimode on Linux, Magic DNS (#536) 
Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
 2020-07-14 09:12:00 -04:00
Dmytro Shynkevych
21d1dbfce0 wgengine/tsdns: local DNS server for testing 
Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
 2020-07-10 14:56:59 -04:00
Brad Fitzpatrick
98ffd78251 go.mod: bump wireguard-go dep 2020-07-09 21:46:44 -07:00
Dmytro Shynkevych
67ebba90e1
tsdns: dual resolution mode, IPv6 support (#526) 
This change adds to tsdns the ability to delegate lookups to upstream nameservers.
This is crucial for setting Magic DNS as the system resolver.

Signed-off-by: Dmytro Shynkevych <dmytro@tailscale.com>
 2020-07-07 15:25:32 -04:00
Brad Fitzpatrick
4db60a8436 wgengine/monitor: parse Linux netlink messages, ignore our own events 
Fixes tailscale/corp#412 ("flood of link change events at start-up")

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-07-06 22:42:01 -07:00
Brad Fitzpatrick
32156330a8 net/interfaces: add func LikelyHomeRouterIP 
For discovering where we might direct NAT-PMP/PCP/UPnP queries at in
the future.
 2020-07-06 10:38:00 -07:00
Brad Fitzpatrick
9fbe8d7cf2 go.mod: bump wireguard 2020-07-03 14:09:29 -07:00
Brad Fitzpatrick
7883e5c5e7 go.mod: restore staticcheck module, make it stick around, go mod tidy 
It kept coming & going as different people ran go mod tidy and others
ran staticcheck.

Make it stop going away with go mod tidy by adding a dep to it.
 2020-07-02 22:55:14 -07:00
David Anderson
9cd4e65191 smallzstd: new package that constructs zstd small encoders/decoders. 
It's just a config wrapper that passes "use less memory at the
expense of compression" parameters by default, so that we don't
accidentally construct resource-hungry (de)compressors.

Also includes a benchmark that measures the memory cost of the
small variants vs. the stock variants. The savings are significant
on both compressors (~8x less memory) and decompressors (~1.4x less,
not including the savings from the significantly smaller
window on the compression side - with those savings included it's
more like ~140x smaller).

BenchmarkSmallEncoder-8            	   56174	     19354 ns/op	      31 B/op	       0 allocs/op
BenchmarkSmallEncoderWithBuild-8   	    2900	    382940 ns/op	 1746547 B/op	      36 allocs/op
BenchmarkStockEncoder-8            	   48921	     25761 ns/op	     286 B/op	       0 allocs/op
BenchmarkStockEncoderWithBuild-8   	     426	   2630241 ns/op	13843842 B/op	     124 allocs/op
BenchmarkSmallDecoder-8            	  123814	      9344 ns/op	       0 B/op	       0 allocs/op
BenchmarkSmallDecoderWithBuild-8   	   41547	     27455 ns/op	   27694 B/op	      31 allocs/op
BenchmarkStockDecoder-8            	  129832	      9417 ns/op	       1 B/op	       0 allocs/op
BenchmarkStockDecoderWithBuild-8   	   25561	     51751 ns/op	   39607 B/op	      92 allocs/op

Signed-off-by: David Anderson <danderson@tailscale.com>
 2020-07-02 16:13:06 -07:00
Brad Fitzpatrick
a477e70632 tstest/natlab: network address allocation 
Pairing with @danderson
 2020-07-02 13:39:41 -07:00
Brad Fitzpatrick
77d3ef36f4 wgengine/magicsock: hook up discovery messages, upgrade to LAN works 
Ping messages now go out somewhat regularly, pong replies are sent,
and pong replies are now partially handled enough to upgrade off DERP
to LAN.

CallMeMaybe packets are sent & received over DERP, but aren't yet
handled. That's next (and regular maintenance timers), and then WAN
should work.

Updates #483
 2020-07-01 13:00:50 -07:00
Brad Fitzpatrick
9b8ca219a1 wgengine/magicsock: remove allocs in UDP write, use new netaddr.PutUDPAddr 
The allocs were only introduced yesterday with a TODO. Now they're gone again.
 2020-07-01 10:17:08 -07:00
Brad Fitzpatrick
eb4eb34f37 disco: new package for parsing & marshaling discovery messages 
Updates #483
 2020-06-29 21:54:34 -07:00
David Anderson
10368ef4c0 go.mod: bump wireguard-go version. 2020-06-17 02:54:18 +00:00
Brad Fitzpatrick
6757c990a8 Fix staticcheck warning, add Makefile with staticcheck targets, lock in staticcheck version in go.mod 2020-06-15 11:05:46 -07:00
David Anderson
e01a4c50ba go.mod: require Go 1.14, since we use some of its features. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2020-06-03 17:53:48 -07:00
Brad Fitzpatrick
722673f307 Update go4.org/mem, adjust to revised API. 2020-05-31 20:22:46 -07:00
Brad Fitzpatrick
c5495288a6 Bump inet.af/netaddr dep for FromStdIP behavior change I want to depend on. 2020-05-28 09:34:41 -07:00
Brad Fitzpatrick
e6b84f2159 all: make client use server-provided DERP map, add DERP region support 
Instead of hard-coding the DERP map (except for cmd/tailscale netcheck
for now), get it from the control server at runtime.

And make the DERP map support multiple nodes per region with clients
picking the first one that's available. (The server will balance the
order presented to clients for load balancing)

This deletes the stunner package, merging it into the netcheck package
instead, to minimize all the config hooks that would've been
required.

Also fix some test flakes & races.

Fixes #387 (Don't hard-code the DERP map)
Updates #388 (Add DERP region support)
Fixes #399 (wgengine: flaky tests)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-05-23 22:31:59 -07:00
David Anderson
39d20e8a75 go.mod: bump wireguard-go version. 2020-05-18 21:03:48 +00:00
David Anderson
cd2f6679bb go.mod: bump wireguard-go version. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2020-05-15 22:29:27 +00:00
Brad Fitzpatrick
e42ec4efba derp/derphttp: use SOCKS/etc proxies for derphttp dials 
Updates #227

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
 2020-05-12 14:38:15 -07:00
halulu
874be6566d
netcheck: DERP latency over HTTPS when UDP is blocked 
* netcheck: DERP letency over HTTPS when UDP failed

Updates #207

Signed-off-by: Zijie Lu <zijie@tailscale.com>

* netcheck: async DERP latency check over HTTPS

Updates #207

Signed-off-by: Zijie Lu <zijie@tailscale.com>

* netcheck: DERP latency check over HTTPS: fix concurrent map

Updates #207

Signed-off-by: Zijie Lu <zijie@tailscale.com>

* netcheck: DERP latency check over HTTPS: some improvements

Updates #207

Signed-off-by: Zijie Lu <zijie@tailscale.com>

* netcheck: DERP latency check over HTTPS: use timeout context

Updates #207

Signed-off-by: Zijie Lu <zijie@tailscale.com>

* netcheck: DERP latency check over HTTPS: use report mutex

Updates #207

Signed-off-by: Zijie Lu <zijie@tailscale.com>

* netcheck: DERP latency check over HTTPS if UDP is BLOCKED

Updates #207

Signed-off-by: Zijie Lu <zijie@tailscale.com>

* netcheck: DERP latency check over HTTPS: new function measureHTTPSLatency

Updates #207

Signed-off-by: Zijie Lu <zijie@tailscale.com>
 2020-05-11 11:23:09 -04:00
David Anderson
b01db109f5 wgengine/router: use inet.af/netaddr, not wgcfg.CIDR. 
Signed-off-by: David Anderson <danderson@tailscale.com>
 2020-05-07 23:40:03 -07:00