Commit Graph

360 Commits (f3c0023addc13ea4212db9daf04fd317585d28c3)

Author SHA1 Message Date
Brad Fitzpatrick 173bbaa1a1 all: disable TCP keep-alives on iOS/Android
Updates #2442
Updates tailscale/corp#2750

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick ec2249b6f2 cmd/tailscale: add debug -env
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick ace2faf7ec cmd/tailscale: make debug profiling output - mean stdout
Because the macOS CLI runs in the sandbox, including the filesystem,
so users would be confused that -cpu-profile=prof.cpu succeeds but doesn't
write to their current directory, but rather in some random Library/Containers
directory somewhere on the machine (which varies depending on the Mac build
type: App Store vs System Extension)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick efb84ca60d ipn/localapi, cmd/tailscale: add CPU & memory profile support, debug command
This was already possible on Linux if you ran tailscaled with --debug
(which runs net/http/pprof), but it requires the user have the Go
toolchain around.

Also, it wasn't possible on macOS, as there's no way to run the IPNExtension
with a debug server (it doesn't run tailscaled).

And on Windows it's super tedious: beyond what users want to do or
what we want to explain.

Instead, put it in "tailscale debug" so it works and works the same on
all platforms. Then we can ask users to run it when we're debugging something
and they can email us the output files.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Denton Gentry 27bc4e744c cmd/tailscale/web: support TLS from env vars.
pfSense stores its SSL certificate and key in the PHP config.
We wrote PHP code to pull the two out of the PHP config and
into environment variables before running "tailscale web".

The pfSense web UI is served over https, we need "tailscale web"
to also support https in order to put it in an <iframe>.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Aaron Klotz 9ebb5d4205 ipn, paths: ensure that the state directory for Windows has the correct perms
ProgramData has a permissive ACL. For us to safely store machine-wide
state information, we must set a more restrictive ACL on our state directory.
We set the ACL so that only talescaled's user (ie, LocalSystem) and the
Administrators group may access our directory.

We must include Administrators to ensure that logs continue to be easily
accessible; omitting that group would force users to use special tools to
log in interactively as LocalSystem, which is not ideal.

(Note that the ACL we apply matches the ACL that was used for LocalSystem's
AppData\Local).

There are two cases where we need to reset perms: One is during migration
from the old location to the new. The second case is for clean installations
where we are creating the file store for the first time.

Updates #2856

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
3 years ago
Brad Fitzpatrick 4549d3151c cmd/tailscale: make status show health check problems
Fixes #2775

RELNOTE=tailscale status now shows health check problems

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder 865d8c0d23 cmd: upgrade to ffcli v3
None of the breaking changes from v2 to v3 are relevant to us.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 640134421e all: update tests to use tstest.MemLogger
And give MemLogger a mutex, as one caller had, which does match the logf
contract better.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 7bfd4f521d cmd/tailscale: fix "tailscale ip $self-host-hostname"
And in the process, fix the related confusing error messages from
pinging your own IP or hostname.

Fixes #2803

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 4917a96aec cmd/tailscale: fix typo/pasteo in error message text
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Dave Anderson 980acc38ba
types/key: add a special key with custom serialization for control private keys (#2792)
* Revert "Revert "types/key: add MachinePrivate and MachinePublic.""

This reverts commit 61c3b98a24.

Signed-off-by: David Anderson <danderson@tailscale.com>

* types/key: add ControlPrivate, with custom serialization.

ControlPrivate is just a MachinePrivate that serializes differently
in JSON, to be compatible with how the Tailscale control plane
historically serialized its private key.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
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
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 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
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 edb338f542 cmd/tailscale: fix sporadic 'context canceled' error on 'up'
Fixes #2333

Signed-off-by: Brad Fitzpatrick <bradfitz@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
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
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
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 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 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
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
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
Brad Fitzpatrick 87244eda3f cmd/tailscale/cli: allow effective GOOS to be changed for integration tests
Adds TS_DEBUG_UP_FLAG_GOOS for integration tests to make "tailscale
up" act like other OSes.

For an upcoming change to test #2137.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
julianknodt 1bb6abc604 net/portmapper: add upnp port mapping
Add in UPnP portmapping, using goupnp library in order to get the UPnP client and run the
portmapping functions. This rips out anywhere where UPnP used to be in portmapping, and has a
flow separate from PMP and PCP.

RELNOTE=portmapper now supports UPnP mappings

Fixes #682
Updates #2109

Signed-off-by: julianknodt <julianknodt@gmail.com>
3 years ago
Denton Gentry e28bc49e5f netns_linux: remove special handling for tests.
With netns handling localhost now, existing tests no longer
need special handling. The tests set up their connections to
localhost, and the connections work without fuss.

Remove the special handling for tests.

Also remove the hostinfo.TestCase support, since this was
the only use of it. It can be added back later if really
needed, but it would be better to try to make tests work
without special cases.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Denton Gentry d2480fd508 net/netns: support !CAP_NET_ADMIN
netns_linux checked whether "ip rule" could run to determine
whether to use SO_MARK for network namespacing. However in
Linux environments which lack CAP_NET_ADMIN, such as various
container runtimes, the "ip rule" command succeeds but SO_MARK
fails due to lack of permission. SO_BINDTODEVICE would work in
these environments, but isn't tried.

In addition to running "ip rule" check directly whether SO_MARK
works or not. Among others, this allows Microsoft Azure App
Service and AWS App Runner to work.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Dan Bond ceb8c2b34e cmd/tailscale: update web server test copyright
Signed-off-by: Dan Bond <danbond@protonmail.com>
3 years ago
Dan Bond 52972679e6 cmd/tailscale: improve web server test structure
Signed-off-by: Dan Bond <danbond@protonmail.com>
3 years ago
Dan Bond 4c684fcf8c cmd/tailscale: test web server url func
Signed-off-by: Dan Bond <danbond@protonmail.com>
3 years ago
Dan Bond 652bbc9aa0 cmd/tailscale: log web listen addr
Signed-off-by: Dan Bond <danbond@protonmail.com>
3 years ago
Brad Fitzpatrick 1cedd944cf cmd/tailscale/cli: diagnose missing tailscaled on 'up'
Fixes #2029

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Crawshaw 87481282eb ipn: another controlplane synonym
This one doesn't bother me so much, as long term we want a synonym here.

Fixes #2384
Fixes #2386

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
David Crawshaw c84d7baf98 cmd/tailscale/cli: factor out more up code for testing
In theory, some of the other table-driven tests could be moved into this
form now but I didn't want to disturb too much good test code.

Includes a commented-out test for #2384 that is currently failing.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Brad Fitzpatrick 92077ae78c wgengine/magicsock: make portmapping async
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick a9fc583211 cmd/tailscale/cli: document the web subcommand a bit more
Fixes #2326

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Crawshaw c37713b927 cmd/tailscale/cli: accept login server synonym
Fixes #2272

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
julianknodt e68d4d5805 cmd/tailscale: add debug flag to dump derp map
This adds a flag in tailscale debug for dumping the derp map to stdout.

Fixes #2249.

Signed-off-by: julianknodt <julianknodt@gmail.com>
3 years ago
julianknodt 506c2fe8e2 cmd/tailscale: make netcheck use active DERP map, delete static copy
After allowing for custom DERP maps, it's convenient to be able to see their latency in
netcheck. This adds a query to the local tailscaled for the current DERPMap.

Updates #1264

Signed-off-by: julianknodt <julianknodt@gmail.com>
3 years ago
julianknodt 148602a89a derp,cmd/derper: allow server to verify clients
This adds a flag to the DERP server which specifies to verify clients through a local
tailscaled. It is opt-in, so should not affect existing clients, and is mainly intended for
users who want to run their own DERP servers. It assumes there is a local tailscaled running and
will attempt to hit it for peer status information.

Updates #1264

Signed-off-by: julianknodt <julianknodt@gmail.com>
3 years ago
Denton Gentry ad288baaea net/interfaces: use IPv4 link local if nothing better
The only connectivity an AWS Lambda container has is an IPv4 link-local
169.254.x.x address using NAT:
12: vtarget_1@if11: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500
                    qdisc noqueue state UP group default qlen 1000
     link/ether 7e:1c:3f:00:00:00 brd ff:ff:ff:ff:ff:ff link-netnsid 1
     inet 169.254.79.1/32 scope global vtarget_1
     valid_lft forever preferred_lft forever

If there are no other IPv4/v6 addresses available, and we are running
in AWS Lambda, allow IPv4 169.254.x.x addresses to be used.

----

Similarly, a Google Cloud Run container's only connectivity is
a Unique Local Address fddf:3978:feb1:d745::c001/128.
If there are no other addresses available then allow IPv6
Unique Local Addresses to be used.
We actually did this in an earlier release, but now refactor it to
work the same way as the IPv4 link-local support is being done.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
David Crawshaw 297b3d6fa4 staticcheck.conf: turn off noisy lint errors
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Brad Fitzpatrick 80a4052593 cmd/tailscale, wgengine, tailcfg: don't assume LastSeen is present [mapver 20]
Updates #2107

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Maisem Ali f944614c5c cmd/tailscale/web: add support for QNAP
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Maisem Ali 95e296fd96 cmd/tailscale/web: restrict web access to synology admins.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
David Crawshaw 82b217f82e cmd/tailscale: have web POST wait for authURL
Fixes #1939

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
David Crawshaw 50c976d3f1 cmd/tailscale: show web 'login' error message
For #1939

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Brad Fitzpatrick d2c4e75099 cmd/tailscale/cli: update URL in error message for Synology unsupported feature
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick cdd231cb7d cmd/tailscale/cli: don't warn about iptables=off on Synology
We don't use iptables on Synology, so don't scare the user.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick a86a0361a7 go.mod: upgrade all deps
At the start of a dev cycle we'll upgrade all dependencies.

Done with:

$ for Dep in $(cat go.mod | perl -ne '/(\S+) v/ and print "$1\n"'); do go get $Dep@upgrade; done

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder 5666663370 net/packet: use netaddr AppendTo methods
This lets us remote the types/strbuilder package,
which had only a single user.
And it's faster.

name              old time/op    new time/op    delta
String/tcp4-8        175ns ± 0%      58ns ± 1%  -66.95%  (p=0.000 n=10+9)
String/tcp6-8        226ns ± 1%     136ns ± 1%  -39.85%  (p=0.000 n=10+10)
String/udp4-8        175ns ± 1%      58ns ± 1%  -67.01%  (p=0.000 n=10+9)
String/udp6-8        230ns ± 1%     140ns ± 0%  -39.32%  (p=0.000 n=10+9)
String/icmp4-8       164ns ± 0%      50ns ± 1%  -69.89%  (p=0.000 n=10+10)
String/icmp6-8       217ns ± 1%     129ns ± 0%  -40.46%  (p=0.000 n=10+10)
String/igmp-8        196ns ± 0%      56ns ± 1%  -71.32%  (p=0.000 n=10+10)
String/unknown-8    2.06ns ± 1%    2.06ns ± 2%     ~     (p=0.985 n=10+10)

name              old alloc/op   new alloc/op   delta
String/tcp4-8        32.0B ± 0%     32.0B ± 0%     ~     (all equal)
String/tcp6-8         168B ± 0%       96B ± 0%  -42.86%  (p=0.000 n=10+10)
String/udp4-8        32.0B ± 0%     32.0B ± 0%     ~     (all equal)
String/udp6-8         168B ± 0%       96B ± 0%  -42.86%  (p=0.000 n=10+10)
String/icmp4-8       32.0B ± 0%     32.0B ± 0%     ~     (all equal)
String/icmp6-8        104B ± 0%       64B ± 0%  -38.46%  (p=0.000 n=10+10)
String/igmp-8        48.0B ± 0%     48.0B ± 0%     ~     (all equal)
String/unknown-8     0.00B          0.00B          ~     (all equal)

name              old allocs/op  new allocs/op  delta
String/tcp4-8         1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/tcp6-8         3.00 ± 0%      1.00 ± 0%  -66.67%  (p=0.000 n=10+10)
String/udp4-8         1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/udp6-8         3.00 ± 0%      1.00 ± 0%  -66.67%  (p=0.000 n=10+10)
String/icmp4-8        1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/icmp6-8        3.00 ± 0%      1.00 ± 0%  -66.67%  (p=0.000 n=10+10)
String/igmp-8         1.00 ± 0%      1.00 ± 0%     ~     (all equal)
String/unknown-8      0.00           0.00          ~     (all equal)

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 25df067dd0 all: adapt to opaque netaddr types
This commit is a mishmash of automated edits using gofmt:

gofmt -r 'netaddr.IPPort{IP: a, Port: b} -> netaddr.IPPortFrom(a, b)' -w .
gofmt -r 'netaddr.IPPrefix{IP: a, Port: b} -> netaddr.IPPrefixFrom(a, b)' -w .

gofmt -r 'a.IP.Is4 -> a.IP().Is4' -w .
gofmt -r 'a.IP.As16 -> a.IP().As16' -w .
gofmt -r 'a.IP.Is6 -> a.IP().Is6' -w .
gofmt -r 'a.IP.As4 -> a.IP().As4' -w .
gofmt -r 'a.IP.String -> a.IP().String' -w .

And regexps:

\w*(.*)\.Port = (.*)  ->  $1 = $1.WithPort($2)
\w*(.*)\.IP = (.*)  ->  $1 = $1.WithIP($2)

And lots of manual fixups.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 6f62bbae79 cmd/tailscale: make ping --until-direct require direct connection to exit 0
If --until-direct is set, the goal is to make a direct connection.
If we failed at that, say so, and exit with an error.

RELNOTE=tailscale ping --until-direct (the default) now exits with
a non-zero exit code if no direct connection was established.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Maisem Ali 7027fa06c3 wf: implement windows firewall using inet.af/wf.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick 5190435d6e cmd/tailscale: rewrite the "up" checker, fix bugs
The old way was way too fragile and had felt like it had more special
cases than normal cases. (see #1874, #1860, #1834, etc) It became very
obvious the old algorithm didn't work when we made the output be
pretty and try to show the user the command they need to run in
5ecc7c7200 for #1746)

The new algorithm is to map the prefs (current and new) back to flags
and then compare flags. This nicely handles the OS-specific flags and
the n:1 and 1:n flag:pref cases.

No change in the existing already-massive test suite, except some ordering
differences (the missing items are now sorted), but some new tests are
added for behavior that was broken before. In particular, it now:

* preserves non-pref boolean flags set to false, and preserves exit
  node IPs (mapping them back from the ExitNodeID pref, as well as
  ExitNodeIP),

* doesn't ignore --advertise-exit-node when doing an EditPrefs call
  (#1880)

* doesn't lose the --operator on the non-EditPrefs paths (e.g. with
  --force-reauth, or when the backend was not in state Running).

Fixes #1880

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick e78e26b6fb cmd/tailscale: fix another up warning with exit nodes
The --advertise-routes and --advertise-exit-node flags both mutating
one pref is the gift that keeps on giving.

I need to rewrite the this up warning code to first map prefs back to
flag values and then just compare flags instead of comparing prefs,
but this is the minimal fix for now.

This also includes work on the tests, to make them easier to write
(and more accurate), by letting you write the flag args directly and
have that parse into the upArgs/MaskedPrefs directly, the same as the
code, rather than them being possibly out of sync being written by
hand.

Fixes https://twitter.com/EXPbits/status/1390418145047887877

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 2585edfaeb cmd/tailscale: fix tailscale up --advertise-exit-node validation
Fixes #1859

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 52e1031428 cmd/tailscale: gofmt
From 6d10655dc3

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Avery Pennarun 6d10655dc3 ipnlocal: accept a new opts.UpdatePrefs field.
This is needed because the original opts.Prefs field was at some point
subverted for use in frontend->backend state migration for backward
compatibility on some platforms. We still need that feature, but we
also need the feature of providing the full set of prefs from
`tailscale up`, *not* including overwriting the prefs.Persist keys, so
we can't use the original field from `tailscale up`.

`tailscale up` had attempted to compensate for that by doing SetPrefs()
before Start(), but that violates the ipn.Backend contract, which says
you should call Start() before anything else (that's why it's called
Start()). As a result, doing SetPrefs({ControlURL=...,
WantRunning=true}) would cause a connection to the *previous* control
server (because WantRunning=true), and then connect to the *new*
control server only after running Start().

This problem may have been avoided before, but only by pure luck.

It turned out to be relatively harmless since the connection to the old
control server was immediately closed and replaced anyway, but it
created a race condition that could have caused spurious notifications
or rejected keys if the server responded quickly.

As already covered by existing TODOs, a better fix would be to have
Start() get out of the business of state migration altogether. But
we're approaching a release so I want to make the minimum possible fix.

Fixes #1840.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
3 years ago
Josh Bleecher Snyder 7dbbe0c7c7 cmd/tailscale/cli: fix running from Xcode
We were over-eager in running tailscale in GUI mode.
f42ded7acf fixed that by
checking for a variety of shell-ish env vars and using those
to force us into CLI mode.

However, for reasons I don't understand, those shell env vars
are present when Xcode runs Tailscale.app on my machine.
(I've changed no configs, modified nothing on a brand new machine.)
Work around that by adding an additional "only in GUI mode" check.

Signed-off-by: Josh Bleecher Snyder <josharian@gmail.com>
3 years ago
Brad Fitzpatrick 962bf74875 cmd/tailscale: fail if tailscaled closes the IPN connection
I was going to write a test for this using the tstest/integration test
stuff, but the testcontrol implementation isn't quite there yet (it
always registers nodes and doesn't provide AuthURLs). So, manually
tested for now.

Fixes #1843

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Crawshaw 1f48d3556f cmd/tailscale/cli: don't report outdated auth URL to web UI
This brings the web 'up' logic into line with 'tailscale up'.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
David Crawshaw 1336ed8d9e cmd/tailscale/cli: skip new tab on web login
It doesn't work properly.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
3 years ago
Brad Fitzpatrick ca65c6cbdb cmd/tailscale: make 'file cp' have better error messages on bad targets
Say when target isn't owned by current user, and when target doesn't
exist in netmap.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 90002be6c0 cmd/tailscale: make pref-revert checks ignore OS-irrelevant prefs
This fixes #1833 in two ways:

* stop setting NoSNAT on non-Linux. It only matters on Linux and the flag
  is hidden on non-Linux, but the code was still setting it. Because of
  that, the new pref-reverting safety checks were failing when it was
  changing.

* Ignore the two Linux-only prefs changing on non-Linux.

Fixes #1833

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick fb67d8311c cmd/tailscale: pull out, parameterize up FlagSet creation for tests
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick f6e3240dee cmd/tailscale/cli: add test to catch ipn.Pref additions 3 years ago
Avery Pennarun 6caa02428e cmd/tailscale/cli/up: "LoggedOut" pref is implicit.
There's no need to warn that it was not provided on the command line
after doing a sequence of up; logout; up --args. If you're asking for
tailscale to be up, you always mean that you prefer LoggedOut to become
false.

Fixes #1828

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
3 years ago
Avery Pennarun 19c3e6cc9e types/logger: rate limited: more hysteresis, better messages.
- Switch to our own simpler token bucket, since x/time/rate is missing
  necessary stuff (can't provide your own time func; can't check the
  current bucket contents) and it's overkill anyway.

- Add tests that actually include advancing time.

- Don't remove the rate limit on a message until there's enough room to
  print at least two more of them. When we do, we'll also print how
  many we dropped, as a contextual reminder that some were previously
  lost. (This is more like how the Linux kernel does it.)

- Reformat the [RATE LIMITED] messages to be shorter, and to not
  corrupt original message. Instead, we print the message, then print
  its format string.

- Use %q instead of \"%s\", for more accurate parsing later, if the
  format string contained quotes.

Fixes #1772

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
3 years ago
Brad Fitzpatrick 1e6d512bf0 cmd/tailscale: improve file cp error message in macOS GUI version
Fixes tailscale/corp#1684

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 8554694616 cmd/tailscale: add 'tailscale file get' subcommand
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick cafa037de0 cmd/tailscale/cli: rename 'tailscale push' to 'tailscale file cp'
And reverse order, require final colon, and support multiple files.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Ross Zurowski b062ac5e86
cmd/tailscale: fix typo in error message (#1807)
Signed-off-by: Ross Zurowski <ross@rosszurowski.com>
3 years ago
Brad Fitzpatrick 5ecc7c7200 cmd/tailscale: make the new 'up' errors prettier and more helpful
Fixes #1746

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick ffe6c8e335 cmd/tailscale/cli: don't do a simple up when in state NeedsLogin
Fixes #1780

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick d94ed7310b cmd/tailscale/cli: add test for already-submitted #1777
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 30629c430a cmd/tailscale/cli: don't force an interactive login on --reset.
Fixes #1778

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 67ba6aa9fd cmd/tailscale/cli: fix typo in ExitNodeID mapping.
Prevented turning off exit nodes.

Fixes #1777

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 11780a4503 cmd/tailscale: only send file basename in push
Fixes #1640

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 820952daba cmd/tailscale: don't print out old authURL on up --force-reauth
Fixes #1671

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick c91a22c82e cmd/tailscale: don't print auth URL when using a --authkey
Fixes #1755

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick e40e5429c2 cmd/tailscale/cli: make 'tailscale up' protect --advertise-exit-node removal
The new "tailscale up" checks previously didn't protect against
--advertise-exit-node being omitted in the case that
--advertise-routes was also provided. It wasn't done before because
there is no corresponding pref for "--advertise-exit-node"; it's a
helper flag that augments --advertise-routes. But that's an
implementation detail and we can still help users. We just have to
special case that pref and look whether the current routes include
both the v4 and v6 /0 routes.

Fixes #1767

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick a16eb6ac41 cmd/tailscale/cli: show online/offline status in push --file-targets
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick dedbd483ea cmd/tailscale/cli: don't require explicit --operator if it matches $USER
This doesn't make --operator implicit (which we might do in the
future), but it at least doesn't require repeating it in the future
when it already matches $USER.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick f42ded7acf cmd/tailscale/cli: relax & improve the running-as-CLI check for macOS
On macOS, we link the CLI into the GUI executable so it can be included in
the Mac App Store build.

You then need to run it like:

/Applications/Tailscale.app/Contents/MacOS/Tailscale <command>

But our old detection of whether you're running that Tailscale binary
in CLI mode wasn't accurate and often bit people. For instance, when
they made a typo, it then launched in GUI mode and broke their
existing GUI connection (starting a new IPNExtension) and took down
their network.

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