Commit Graph

555 Commits (61c3b98a24317dcfd5cbe3db29e7d6b64b8c27a7)

Author SHA1 Message Date
David Anderson 61c3b98a24 Revert "types/key: add MachinePrivate and MachinePublic."
Broke the tailscale control plane due to surprise different serialization.

This reverts commit 4fdb88efe1.
3 years ago
David Anderson 4fdb88efe1 types/key: add MachinePrivate and MachinePublic.
Plumb throughout the codebase as a replacement for the mixed use of
tailcfg.MachineKey and wgkey.Private/Public.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 99a1c74a6a metrics: optimize CurrentFDs to not allocate on Linux
It was 50% of our allocs on one of our servers. (!!)

Updates #2784

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 5d800152d9 cmd/derper: increase port 80's WriteTimeout to permit longer CPU profiles
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Chuangbo Li e4e4d336d9
cmd/derper: listen on host of flag server addr for port 80 and 3478 (#2768)
cmd/derper: listen on host of flag server addr for port 80 and 3478

When using custom derp on the server with multiple IP addresses,
we would like to bind derp 80, 443 and stun 3478 to a certain IP.

derp command provides flag `-a` to customize which address to bind
for port 443. But port :80 and :3478 were hard-coded.

Fixes #2767

Signed-off-by: Li Chuangbo <im@chuangbo.li>
3 years ago
Maisem Ali 0842e2f45b ipn/store: add ability to store data as k8s secrets.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick 7f29dcaac1 cmd/tailscale/cli: make up block until state Running, not just Starting
At "Starting", the DERP connection isn't yet up. After the first netmap
and DERP connect, then it transitions into "Running".

Fixes #2708

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 7a7aa8f2b0 cmd/derper: also add port 80 timeouts
Didn't notice this one in earlier 00b3c1c042

Updates tailscale/corp#2486

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 3c8ca4b357 client/tailscale, cmd/tailscale/cli: move version mismatch check to CLI
So people can use the package for whois checks etc without version
skew errors.

The earlier change faa891c1f2 for #1905
was a bit too aggressive.

Fixes #2757

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 21cb0b361f safesocket: add connect retry loop to wait for tailscaled
Updates #2708

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 00b3c1c042 cmd/derper: add missing read/write timeouts
Updates tailscale/corp#2486

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 97693f2e42 wgengine/magicsock: delete legacy AddrSet endpoints.
Instead of using the legacy codepath, teach discoEndpoint to handle
peers that have a home DERP, but no disco key. We can still communicate
with them, but only over DERP.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Maisem Ali fd4838dc57 wgengine/userspace: add support to automatically enable/disable the tailscale
protocol in BIRD, when the node is a primary subnet router as determined
by control.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Will Lachance a35c3ba221
cmd/tailscale: fix truncated characters in web controller (#2722)
Fixes #2204

Signed-off-by: William Lachance <wlach@protonmail.com>

Co-authored-by: William Lachance <wlach@protonmail.com>
Co-authored-by: Ross Zurowski <ross@rosszurowski.com>
3 years ago
Brad Fitzpatrick 4aab083cae cmd/tailscaled: add debug flag to print interfaces just once
It previously only had a polling monitor mode.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 47045265b9 hostinfo: add SetDeviceModel setter, move remaining code from controlclient
Updates tailscale/corp#1959

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder 4ff0757d44 cmd/testcontrol: add test control server
This is useful for manual performance testing
of networks with many nodes.
I imagine it'll grow more knobs over time.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick edb338f542 cmd/tailscale: fix sporadic 'context canceled' error on 'up'
Fixes #2333

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Maisem Ali 9f62cc665e tailscaled: try migrating old state on synology devices
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick b7ae529ecc client/tailscale: make GetCertificate guess cert if SNI lacks dots
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick d5e1abd0c4 cmd/tailscale/cli: only write cert file if it changed
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 57b794c338 ipn/localapi: move cert fetching code to localapi, cache, add cert subcommand
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Matt Layher 8ab44b339e net/tstun: use unix.Ifreq type for Linux TAP interface configuration
Signed-off-by: Matt Layher <mdlayher@gmail.com>
3 years ago
Josh Bleecher Snyder d2aa144dcc syncs: bump known good version to include Go 1.17
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 25e060a841 cmd/tailscale/cli: fix cert fetch WaitOrder retry loop, misc cleanups
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick b2eea1ee00 cmd/tailscale/cli: make cert fetch registration automatic, show valid domains
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Denton Gentry 3e7ff5ff98 cmd/tailscaled: enable hybrid netstack mode for FreeBSD.
Allows FreeBSD to function as an exit node in the same way
that Windows and Tailscaled-on-MacOS do.

RELNOTE=FreeBSD can now function as an exit node.

Fixes https://github.com/tailscale/tailscale/issues/2498

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Brad Fitzpatrick ec9f3f4cc0 cmd/tailscale: update depaware
Missing from prior commit.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick c68a12afe9 cmd/tailscale: add temporary debug command for getting DNS-01 LetsEncrypt cert
Not even close to usable or well integrated yet, but submitting this before
it bitrots or I lose it.

Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson d2d55bd63c cmd/microproxy: delete.
Thank goodness.

Fixes #2635

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Josh Bleecher Snyder a4e19f2233 version: remove rsc.io/goversion dependency
rsc.io/goversion is really expensive.
Running version.ReadExe on tailscaled on darwin
allocates 47k objects, almost 11mb.

All we want is the module info. For that, all we need to do
is scan through the binary looking for the magic start/end strings
and then grab the bytes in between them.

We can do that easily and quickly with nothing but a 64k buffer.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
David Crawshaw 360223fccb types/dnstype: introduce new package for Resolver
So the type can be used in net/dns without introducing a tailcfg
dependency.

For #2596

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Josh Bleecher Snyder eee6b85b9b cmd/tailscaled: don't require root for --cleanup
Without this, the integration tests fail locally for me:

--- FAIL: TestCollectPanic (7.61s)
    integration.go:74: built [tailscale.com/cmd/tailscaled tailscale.com/cmd/tailscale] in 1.59s
    integration_test.go:102: initial run: tailscaled requires root; use sudo tailscaled (or use --tun=userspace-networking)
    integration_test.go:108: cleanup failed: exit status 1: "tailscaled requires root; use sudo tailscaled (or use --tun=userspace-networking)\n"
    stuntest.go:64: STUN server shutdown
FAIL
FAIL	tailscale.com/tstest/integration	9.678s
FAIL

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder a5da4ed981 all: gofmt with Go 1.17
This adds "//go:build" lines and tidies up existing "// +build" lines.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick a729070252 net/tstun: add start of Linux TAP support, with DHCP+ARP server
Still very much a prototype (hard-coded IPs, etc) but should be
non-invasive enough to submit at this point and iterate from here.

Updates #2589

Co-Author: David Crawshaw <crawshaw@tailscale.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick fd7b738e5b derp: use pad32 package for padding, reduce duplication
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick fdc081c291 net/portmapper: fix UPnP probing, work against all ports
Prior to Tailscale 1.12 it detected UPnP on any port.
Starting with Tailscale 1.11.x, it stopped detecting UPnP on all ports.

Then start plumbing its discovered Location header port number to the
code that was assuming port 5000.

Fixes #2109

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick f3c96df162 ipn/ipnstate: move tailscale status "active" determination to tailscaled
Fixes #2579

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 1db9032ff5 cmd/tailscaled: let portmap debug mode have an gateway/IP override knob
For testing pfSense clients "behind" pfSense on Digital Ocean where
the main interface still exists. This is easier for debugging.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 31ea073a73 cmd/tailscaled: add debug -portmap mode
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Crawshaw 3e039daf95 logpolicy: actually collect panics
(Written with Josh)

For #2544

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Brad Fitzpatrick d37451bac6 cmd/derper: dial VPC address with right context
Fix bug from just-submitted e422e9f4c9.

Updates #2414

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick e422e9f4c9 cmd/derper: mesh over VPC network
Updates #2414

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder 9da4181606 tstime/rate: new package
This is a simplified rate limiter geared for exactly our needs:
A fast, mono.Time-based rate limiter for use in tstun.
It was generated by stripping down the x/time/rate rate limiter
to just our needs and switching it to use mono.Time.

It removes one time.Now call per packet.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 8a3d52e882 wgengine/magicsock: use mono.Time
magicsock makes multiple calls to Now per packet.
Move to mono.Now. Changing some of the calls to
use package mono has a cascading effect,
causing non-per-packet call sites to also switch.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder c2202cc27c net/tstun: use mono.Time
There's a call to Now once per packet.
Move to mono.Now.

Though the current implementation provides high precision,
we document it to be coarse, to preserve the ability
to switch to a coarse monotonic time later.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Aaron Bieber c179b9b535 cmd/tsshd: switch from github.com/kr/pty to github.com/creack/pty
The kr/pty module moved to creack/pty per the kr/pty README[1].

creack/pty brings in support for a number of OS/arch combos that
are lacking in kr/pty.

Run `go mod tidy` while here.

[1] https://github.com/kr/pty/blob/master/README.md

Signed-off-by: Aaron Bieber <aaron@bolddaemon.com>
3 years ago
Brad Fitzpatrick 7b9f02fcb1 cmd/tailscale/cli: document that empty string disable exit nodes, routes
Updates #2529

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Joe Tsai d145c594ad
util/deephash: improve cycle detection (#2470)
The previous algorithm used a map of all visited pointers.
The strength of this approach is that it quickly prunes any nodes
that we have ever visited before. The detriment of the approach
is that pruning is heavily dependent on the order that pointers
were visited. This is especially relevant for hashing a map
where map entries are visited in a non-deterministic manner,
which would cause the map hash to be non-deterministic
(which defeats the point of a hash).

This new algorithm uses a stack of all visited pointers,
similar to how github.com/google/go-cmp performs cycle detection.
When we visit a pointer, we push it onto the stack, and when
we leave a pointer, we pop it from the stack.
Before visiting a pointer, we first check whether the pointer exists
anywhere in the stack. If yes, then we prune the node.
The detriment of this approach is that we may hash a node more often
than before since we do not prune as aggressively.

The set of visited pointers up until any node is only the
path of nodes up to that node and not any other pointers
that may have been visited elsewhere. This provides us
deterministic hashing regardless of visit order.
We can now delete hashMapFallback and associated complexity,
which only exists because the previous approach was non-deterministic
in the presence of cycles.

This fixes a failure of the old algorithm where obviously different
values are treated as equal because the pruning was too aggresive.
See https://github.com/tailscale/tailscale/issues/2443#issuecomment-883653534

The new algorithm is slightly slower since it prunes less aggresively:
	name              old time/op    new time/op    delta
	Hash-8              66.1µs ± 1%    68.8µs ± 1%   +4.09%        (p=0.000 n=19+19)
	HashMapAcyclic-8    63.0µs ± 1%    62.5µs ± 1%   -0.76%        (p=0.000 n=18+19)
	TailcfgNode-8       9.79µs ± 2%    9.88µs ± 1%   +0.95%        (p=0.000 n=19+17)
	HashArray-8          643ns ± 1%     653ns ± 1%   +1.64%        (p=0.000 n=19+19)
However, a slower but more correct algorithm seems
more favorable than a faster but incorrect algorithm.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
3 years ago
Brad Fitzpatrick ed8587f90d wgengine/router: take a link monitor
Prep for #1591 which will need to make Linux's router react to changes
that the link monitor observes.

The router package already depended on the monitor package
transitively. Now it's explicit.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago