Commit Graph

2988 Commits

Author SHA1 Message Date
David Anderson
c9b9afd761 wgengine/magicsock: move most legacy nat traversal bits to another file.
Signed-off-by: David Anderson <danderson@tailscale.com>
2020-12-18 01:15:53 -08:00
Brad Fitzpatrick
5f07da4854 util/systemd: don't log warnings when not running under systemd
It caused our integration tests to fail, which prohibit logging to
os.Stderr for test cleanliness reasons.
2020-12-17 12:59:05 -08:00
Brad Fitzpatrick
741c513e51 wgengine/tsdns: fix error response marshaling, improve bad query logs
Updates #995

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2020-12-17 12:46:08 -08:00
David Anderson
554a20becb wgengine/magicsock: only log about lazy config when actually doing lazy config.
Before, tailscaled would log every 10 seconds when the periodic noteRecvActivity
call happens. This is noisy, but worse it's misleading, because the message
suggests that the disco code is starting a lazy config run for a missing peer,
whereas in fact it's just an internal piece of keepalive logic.

With this change, we still log when going from 0->1 tunnel for the peer, but
not every 10s thereafter.

Signed-off-by: David Anderson <danderson@tailscale.com>
2020-12-17 12:11:36 -08:00
Brad Fitzpatrick
da1bad51cd tailcfg: document new OmitPeers endpoint updating functionality 2020-12-15 12:16:15 -08:00
Brad Fitzpatrick
fa412c8760 wgengine/filter, wgengine/magicsock: use new IP.BitLen to simplify some code 2020-12-15 12:12:56 -08:00
Brad Fitzpatrick
afcf134812 wgengine/filter, tailcfg: support CIDRs+ranges in PacketFilter (mapver 7)
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2020-12-15 11:00:37 -08:00
Christine Dodrill
0681c6da49
Merge pull request #967 from Xe/report-status-systemd
ipn/ipnserver: enable systemd-notify support
2020-12-15 11:44:20 -05:00
Christine Dodrill
2485faf69a
Merge branch 'main' into report-status-systemd 2020-12-15 08:40:46 -05:00
Christine Dodrill
7ea809897d ipn/ipnserver: enable systemd-notify support
Addresses #964

Still to be done:
- Figure out the correct logging lines in util/systemd
- Figure out if we need to slip the systemd.Status function anywhere
  else
- Log util/systemd errors? (most of the errors are of the "you cannot do
  anything about this, but it might be a bad idea to crash the program if
  it errors" kind)

Assistance in getting this over the finish line would help a lot.

Signed-off-by: Christine Dodrill <me@christine.website>

util/systemd: rename the nonlinux file to appease the magic

Signed-off-by: Christine Dodrill <me@christine.website>

util/systemd: fix package name

Signed-off-by: Christine Dodrill <me@christine.website>

util/systemd: fix review feedback from @mdlayher

Signed-off-by: Christine Dodrill <me@christine.website>

cmd/tailscale{,d}: update depaware manifests

Signed-off-by: Christine Dodrill <me@christine.website>

util/systemd: use sync.Once instead of func init

Signed-off-by: Christine Dodrill <me@christine.website>

control/controlclient: minor review feedback fixes

Signed-off-by: Christine Dodrill <me@christine.website>

{control,ipn,systemd}: fix review feedback

Signed-off-by: Christine Dodrill <me@christine.website>

review feedback fixes

Signed-off-by: Christine Dodrill <me@christine.website>

ipn: fix sprintf call

Signed-off-by: Christine Dodrill <me@christine.website>

ipn: make staticcheck less sad

Signed-off-by: Christine Dodrill <me@christine.website>

ipn: print IP address in connected status

Signed-off-by: Christine Dodrill <me@christine.website>

ipn: review feedback

Signed-off-by: Christine Dodrill <me@christine.website>

final fixups

Signed-off-by: Christine Dodrill <me@christine.website>
2020-12-15 08:39:06 -05:00
David Anderson
9cee0bfa8c wgengine/magicsock: sprinkle more docstrings.
Magicsock is too damn big, but this might help me page it back
in faster next time.

Signed-off-by: David Anderson <danderson@tailscale.com>
2020-12-14 23:59:17 -08:00
Josh Bleecher Snyder
34a0292433 depaware.txt: update
Upgrading staticcheck upgraded golang.org/x/sync
(one downside of mixing our tools in with our regular go.mod),
which introduced a new dependency via
https://go-review.googlesource.com/c/sync/+/251677

That CL could and probably should be written without runtime/debug,
but it's not clear to me that that is better at this moment
than simply accepting the additional package as a dependency.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2020-12-14 14:01:29 -08:00
Josh Bleecher Snyder
ce4d68b416 go.mod: upgrade depaware version
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2020-12-14 14:01:29 -08:00
Josh Bleecher Snyder
a6cad71fb2 go.mod: upgrade staticcheck to 0.1.0
Also run go.mod and fix some staticcheck warnings.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2020-12-14 14:01:29 -08:00
Brad Fitzpatrick
a0a8b9d76a control/controlclient: don't spin when starting up when node key is expired
Fixes #1018

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2020-12-14 11:51:04 -08:00
Smitty
b895bf853a Require at least Go 1.15
This was actually required before this commit, this just updates
go.mod with that fact.

Signed-off-by: Smitty <me@smitop.com>
2020-12-13 16:36:25 -08:00
Smitty
8a57f920ae Remove unused .gitignore lines
These ignore built files that don't exist anymore, and just serve
to clutter up the .gitignore file. (I was initially confused when
I saw those lines, since I (correctly) thought that the only
Tailscale binaries were tailscale and tailscaled):

- taillogin was removed in d052586
- relaynode was removed in a56e853

Signed-off-by: Smitty <me@smitop.com>
2020-12-12 16:11:58 -08:00
Josh Bleecher Snyder
6db9c4a173 wgenginer/router/dns: use constant from golang.org/x/sys/windows
Made available in https://golang.org/cl/277153
2020-12-10 17:23:01 -08:00
Aleksandar Pesic
0dc295a640 Isolate WireGuard code into a separate file with appropriate copyright info in header.
Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>
2020-12-11 01:08:41 +01:00
Aleksandar Pesic
d854fe95d2 Trivial change in function description.
Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>
2020-12-11 00:55:37 +01:00
Aleksandar Pesic
4749a96a5b Update depaware.txt files.
Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>
2020-12-11 00:45:31 +01:00
Aleksandar Pesic
338fd44657 Replace registry-access code, update wireguard-go and x/sys/windows.
Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>
2020-12-11 00:37:24 +01:00
Aleksandar Pesic
274d32d0aa Prepare for the new wireguard-go API.
Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>
2020-12-11 00:08:28 +01:00
Adrian Dewhurst
943860fde7 version: relax git detection logic (again)
This is a repeat of commit 3aa68cd397
which was lost in a rework of version.sh.

git worktrees have a .git file rather than a .git directory, so building
in a worktree caused version.sh to generate an error.

Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
2020-12-09 21:55:41 -05:00
Brad Fitzpatrick
bce865b61b logpolicy: migrate from x/crypto/ssh/terminal to x/term 2020-12-09 15:28:31 -08:00
David Anderson
57cd7738c2 tsweb: add an endpoint to manually trigger a GC.
Signed-off-by: David Anderson <danderson@tailscale.com>
2020-12-08 16:49:42 -08:00
Brad Fitzpatrick
9cb6ee3777 go.mod, go.sum: update 2020-12-08 15:23:56 -08:00
Brad Fitzpatrick
08f94b3b50 net/netcheck: fix offset of unspecified address in PCP request packet
Fixes #810
2020-12-08 15:22:26 -08:00
Brad Fitzpatrick
442d1873ec go.mod: bump tailscale/wireguard-go 2020-12-07 14:02:05 -08:00
Brad Fitzpatrick
19c2c6403d Update go.sum 2020-12-07 14:00:53 -08:00
Brad Fitzpatrick
b3c7b631c2 tailcfg, control/controlclient: make nil PacketFilter mean unchanged (mapver 6)
After mapver 5's incremental netmap updates & user profiles, much of
the remaining bandwidth for streamed MapResponses were redundant,
unchanged PacketFilters. So make MapRequest.Version 6 mean that nil
means unchanged from the previous value.
2020-12-07 09:17:42 -08:00
Brad Fitzpatrick
05e5233e07 net/netcheck: don't send flood of PCP unmap requests to router
Updates #810
2020-12-06 19:46:11 -08:00
Brad Fitzpatrick
9503be083d tailcfg: update comments a bit 2020-12-03 12:16:10 -08:00
Brad Fitzpatrick
88179121e3 version: bump date 2020-12-03 12:08:07 -08:00
Brad Fitzpatrick
7b92f8e718 wgengine/magicsock: add start of magicsock benchmarks (Conn.ReceiveIPv4 for now)
And only single-threaded for now. Will get fancier later.

Updates #414
2020-12-02 20:26:54 -08:00
Brad Fitzpatrick
713cbe84c1 wgengine/magicsock: use net.JoinHostPort when host might have colons (udp6)
Only affected tests. (where it just generated log spam)
2020-12-02 20:19:28 -08:00
David Anderson
be6fe393c5 wgengine: don't try pinging IPv6 addresses in legacy pinger.
Signed-off-by: David Anderson <danderson@tailscale.com>
2020-12-01 20:09:32 -08:00
David Anderson
dfbde3d3aa ipn: pass through the prefix length from control.
Control sets this to /32 for IPv4 and /128 for IPv6.

Signed-off-by: David Anderson <danderson@tailscale.com>
2020-12-01 20:09:16 -08:00
David Anderson
4c8ccd6dd6 tailcfg: document new debug flag. 2020-12-01 18:17:09 -08:00
Brad Fitzpatrick
c0af7deb86 tailcfg, cmd/tailscale: add Hostinfo.ShareeNode, hide in "tailscale status" 2020-12-01 15:29:18 -08:00
Brad Fitzpatrick
ab482118ad tailcfg: add some missing json omitempty
Noticed these in MapResponses to clients.

MachineAuthorized was set true, but once we fix the coordination server
to zero out that field, then it can be omittted.
2020-11-25 10:27:01 -08:00
Dmytro Tananayskiy
c431382720 Fix receiver in order to be consistent: syncs.WaitGroupChan
Signed-off-by: Dmytro Tananayskiy <dmitriyminer@gmail.com>
2020-11-24 17:20:34 -08:00
Josh Bleecher Snyder
3a7402aa2d logtail: help the server be more efficient
Add content length hints to headers.
The server can use these hints to more efficiently select buffers.

Stop attempting to compress tiny requests.
The bandwidth savings are negligible (and sometimes negative!),
and it makes extra work for the server.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2020-11-24 12:00:32 -08:00
Brad Fitzpatrick
cd6099113f ipn: add a comment about skipping files with null bytes
Updates #954
2020-11-24 11:07:49 -08:00
Alex Brainman
72e082aaf5 ipn: make LoadPrefs return os.ErrNotExist when reading corrupted files
It appears some users have corrupted pref.conf files. Have LoadPrefs
treat these files as non-existent. This way tailscale will make user
login, and not crash.

Fixes #954

Signed-off-by: Alex Brainman <alex.brainman@gmail.com>
2020-11-24 11:05:42 -08:00
David Crawshaw
2c48b4ee14 tailcfg: remove outdated comments about Clone methods
The cloner tool adds static checks that the Clone methods are up to
date, so failing to update Clone causes a compiler error.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2020-11-24 13:16:21 -05:00
Sonia Appasamy
0710fca0cd
tailcfg: include ShieldsUp in HostInfo 2020-11-24 10:51:13 -05:00
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
Josh Bleecher Snyder
a5dd0bcb09 util/jsonutil: new package
The cornerstone API is a more memory-efficient Unmarshal.
The savings come from re-using a json.Decoder.

BenchmarkUnmarshal-8      	 4016418	       288 ns/op	       8 B/op	       1 allocs/op
BenchmarkStdUnmarshal-8   	 4189261	       283 ns/op	     184 B/op	       2 allocs/op

It also includes a Bytes type to reduce allocations
when unmarshalling a non-hex-encoded JSON string into a []byte.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2020-11-19 13:58:35 -08:00
Josh Bleecher Snyder
b65eee0745 util/lineread: add docs to Reader
In particular, point out how to stop reading
and detect it on the other side.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2020-11-19 12:14:58 -08:00