Commit Graph

701 Commits (9ccc52cd045232c6ae3996fa702154cb2d161a52)

Author SHA1 Message Date
Maisem Ali 518f6cee63 ipn/store: [TestNewStore] do not use an empty file
Otherwise it would log warnings about an empty file.
```
    stores.go:138: store.NewFileStore("/tmp/3777352782"): file empty; treating it like a missing file [warning]
```

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Maisem Ali 497324ddf6 ipn/store: add common package for instantiating ipn.StateStores
Also move KubeStore and MemStore into their own package.

RELNOTE: tsnet now supports providing a custom ipn.StateStore.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick c9eca9451a ssh: make it build on darwin
For local dev testing initially. Product-wise, it'll probably only be
workable on the two unsandboxed builds.

Updates #3802

Change-Id: Ic352f966e7fb29aff897217d79b383131bf3f92b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick c4a6d9fa5d ipn/ipnlocal: generate tailscaled-owned SSH keys as needed
Updates #3802

Change-Id: Ie1bc9ae3f3639603b88b4e19b7eb12bea528ff77
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick bb94561c96 net/netutil: fix regression where peerapi would get closed after 1st req
I introduced a bug in 8fe503057d when unifying oneConnListener
implementations.

The NewOneConnListenerFrom API was easy to misuse (its Close method
closes the underlying Listener), and we did (via http.Serve, which
closes the listener after use, which meant we were close the peerapi's
listener, even though we only wanted its Addr)

Instead, combine those two constructors into one and pass in the Addr
explicitly, without delegating through to any Listener.

Change-Id: I061d7e5f842e0cada416e7b2dd62100d4f987125
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Maisem Ali c7a8f0992d ipn/ipnlocal: use views for Peer.PrimaryRoutes and Peer.Tags
RELNOTE=`tailscale status --json` now shows Tags and PrimaryRoutes

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Maisem Ali 9cbb0913be ipn/{ipnlocal,ipnstate}: add Tags and PrimaryRoutes to PeerStatus
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick d19a63ddf6 ipn/localapi: treat ACME "invalid" state as terminal, log more
Fixes #3975

Change-Id: Idb2cc8d4730e140939898c7dcc15c2014acca142
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick de72a1f9fc ipn/ipnserver: let TS_PERMIT_CERT_UID contain a username too, not just uid
Don't make users map their system's "caddy" (or whatever) system user
to its userid. We can do that. Support either a uid or a username.

RELNOTE=TS_PERMIT_CERT_UID can contain a uid or username

Change-Id: I7451b537a5e118b818addf1353882291d5f0d07f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Maisem Ali f9a50779e2 cmd/tailscaled: add `-state=mem:` to support creation of an ephemeral node.
RELNOTE=`tailscaled --state=mem:` registers as an ephemeral node and
does not store state to disk.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick 84138450a4 types/logger, logtail: add mechanism to do structured JSON logs
e.g. the change to ipnlocal in this commit ultimately logs out:

{"logtail":{"client_time":"2022-02-17T20:40:30.511381153-08:00","server_time":"2022-02-18T04:40:31.057771504Z"},"type":"Hostinfo","val":{"GoArch":"amd64","Hostname":"tsdev","IPNVersion":"1.21.0-date.20220107","OS":"linux","OSVersion":"Debian 11.2 (bullseye); kernel=5.10.0-10-amd64"},"v":1}

Change-Id: I668646b19aeae4a2fed05170d7b279456829c844
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick bb93e29d5c tailcfg, ipn/ipnlocal: add Hostinfo.SSH_HostKeys, send when SSH enabled
(The name SSH_HostKeys is bad but SSHHostKeys is worse.)

Updates #3802

Change-Id: I2a889019c9e8b065b668dd58140db4fcab868a91
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick fbff1555fc ipnlocal, tailssh: start moving host key stuff into the right spot
Make tailssh ask LocalBackend for the SSH hostkeys, as we'll need to
distribute them to peers.

For now only the hacky use-same-as-actual-host mode is implemented.

Updates #3802

Change-Id: I819dcb25c14e42e6692c441186c1dc744441592b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Maisem Ali 72d8672ef7 tailcfg: make Node.Hostinfo a HostinfoView
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Ross Zurowski 6d02a48d8d
ipn: add `TailnetStatus` field to `tailscale status --json` (#3865)
We need to capture some tailnet-related information for some Docker
features we're building. This exposes the tailnet name and MagicDNS
information via `tailscale status --json`.

Fixes tailscale/corp#3670

Signed-off-by: Ross Zurowski <ross@rosszurowski.com>
3 years ago
Brad Fitzpatrick 01e8a152f7 ipn/ipnlocal: log most of Hostinfo once non-verbose at start-up
Our previous Hostinfo logging was all as a side effect of telling
control. And it got marked as verbose (as it was)

This adds a one-time Hostinfo logging that's not verbose, early in
start-up.

Change-Id: I1896222b207457b9bb12ffa7cf361761fa4d3b3a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 8fe503057d net/netutil: unify two oneConnListeners into a new package
I was about to add a third copy, so unify them now instead.

Change-Id: I3b93896aa1249b1250a6b1df4829d57717f2311a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick a19c110dd3 envknob: track, log env knobs in use
Fixes #3921

Change-Id: I8186053b5c09c43f0358b4e7fdd131361a6d8f2e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 2db6cd1025 ipn/ipnlocal, wgengine/magicsock, logpolicy: quiet more logs
Updates #1548

Change-Id: Ied169f872e93be2857890211f2e018307d4aeadc
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 86a902b201 all: adjust some log verbosity
Updates #1548

Change-Id: Ia55f1b5dc7dfea09a08c90324226fb92cd10fa00
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Aaron Klotz d7962e3bcf ipn/ipnserver, util/winutil: update workaround for os/user.LookupId failures on Windows to reject SIDs from deleted/invalid security principals.
Our current workaround made the user check too lax, thus allowing deleted
users. This patch adds a helper function to winutil that checks that the
uid's SID represents a valid Windows security principal.

Now if `lookupUserFromID` determines that the SID is invalid, we simply
propagate the error.

Updates https://github.com/tailscale/tailscale/issues/869

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
3 years ago
Brad Fitzpatrick bd90781b34 ipn/ipnlocal, wgengine/netstack: use netstack for peerapi server
We're finding a bunch of host operating systems/firewalls interact poorly
with peerapi. We either get ICMP errors from the host or users need to run
commands to allow the peerapi port:

https://github.com/tailscale/tailscale/issues/3842#issuecomment-1025133727

... even though the peerapi should be an internal implementation detail.

Rather than fight the host OS & firewalls, this change handles the
server side of peerapi entirely in netstack (except on iOS), so it
never makes its way to the host OS where it might be messed with. Two
main downsides are:

1) netstack isn't as fast, but we don't really need speed for peerapi.
   And actually, with fewer trips to/from the kernel, we might
   actually make up for some of the netstack performance loss by
   staying in userspace.

2) tcpdump / Wireshark etc packet captures will no longer see the peerapi
   traffic. Oh well. Crawshaw's been wanting to add packet capture server
   support to tailscaled, so we'll probably do that sooner now.

A future change might also then use peerapi for the client-side
(except on iOS).

Updates #3842 (probably fixes, as well as many exit node issues I bet)

Change-Id: Ibc25edbb895dc083d1f07bd3cab614134705aa39
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 857cd6c0d7 ipn/ipnstate: add TailnetName to status
RELNOTE=tailscale status --json | jq .TailnetName

Fixes tailscale/corp#3665

Change-Id: I85de027ba2781eb31ee1e0c5ab913b0dfa5b4c86
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick ca774c3249 ipn/ipnserver: add TS_PERMIT_CERT_UID envknob to give webservers cert access
So you can run Caddy etc as a non-root user and let it have access to
get certs.

Updates caddyserver/caddy#4541

Change-Id: Iecc5922274530e2b00ba107d4b536580f374109b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick f3c0023add wgengine/netstack: add an SSH server experiment
Disabled by default.

To use, run tailscaled with:

    TS_SSH_ALLOW_LOGIN=you@bar.com

And enable with:

    $ TAILSCALE_USE_WIP_CODE=true tailscale up --ssh=true

Then ssh [any-user]@[your-tailscale-ip] for a root bash shell.
(both the "root" and "bash" part are temporary)

Updates #3802

Change-Id: I268f8c3c95c8eed5f3231d712a5dc89615a406f0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 41fd4eab5c envknob: add new package for all the strconv.ParseBool(os.Getenv(..))
A new package can also later record/report which knobs are checked and
set. It also makes the code cleaner & easier to grep for env knobs.

Change-Id: Id8a123ab7539f1fadbd27e0cbeac79c2e4f09751
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick b03170b901 ipn/ipnserver: provide means of setting debug env vars on Windows
Fixes #3688

Change-Id: I2f88ca32bf764e2b084fe544d821c43b6a20ffa5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick e68d87eb44 ipn: rename SetRunExitNode to SetAdvertiseExitNode
From Maisem's code review feedback where he mashed the merge
button by mistake.

Change-Id: I55abce036a6c25dc391250514983125dda10126c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 2cfc96aa90 ipn: add methods on Prefs to get/set exit node being advertised
This code was copied in a few places (Windows, Android), so unify it
and add tests.

Change-Id: Id0510c0f5974761365a2045279d1fb498feca11e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 3690bfecb0 ipn/ipnlocal: fix cert fetching on macOS GUI platforms
And clarify the directory they get written to when under the sandbox.

Fixes #3667

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 506c727e30 ipnlocal, net/{dns,tsaddr,tstun}, wgengine: support MagicDNS on IPv6
Fixes #3660

RELNOTE=MagicDNS now works over IPv6 when CGNAT IPv4 is disabled.

Change-Id: I001e983df5feeb65289abe5012dedd177b841b45
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick b09000ad5d ipn/localapi: add debug handler to Rebind, ReSTUN magicsock
And more later probably.

Updates #3619

Change-Id: Ia4cba34a7c0dcce4d2eddec8aae17f32b51c207f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 0aa4c6f147 net/dns/resolver: add debug HTML handler to see what DNS traffic was forwarded
Change-Id: I6b790e92dcc608515ac8b178f2271adc9fd98f78
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick ae319b4636 wgengine/magicsock: add HTML debug handler to see magicsock state
Change-Id: Ibc46f4e9651e1c86ec6f5d139f5e9bdc7a488415
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 3dedcd1640 logpolicy, ipn/ipnserver: connect to logtail via tailscaled when needed
This is for use by the Windows GUI client to log via when an
exit node is in use, so the logs don't go out via the exit node and
instead go directly, like tailscaled's. The dialer tried to do that
in the unprivileged GUI by binding to a specific interface, but the
"Internet Kill Switch" installed by tailscaled for exit nodes
precludes that from working and instead the GUI fails to dial out.
So, go through tailscaled (with a CONNECT request) instead.

Fixes tailscale/corp#3169

Change-Id: I17a8efdc1d4b8fed53a29d1c19995592b651b215
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 40e2b312b6 ipn/ipnserver, logpolicy: move Windows disk logging up earlier
This moves the Windows-only initialization of the filelogger into
logpolicy. Previously we only did it when babysitting the tailscaled
subprocess, but this meant that log messages from the service itself
never made it to disk. Examples that weren't logged to disk:

* logtail unable to dial out,
* DNS flush messages from the service
* svc.ChangeRequest messages (#3581)

This is basically the same fix as #3571 but staying in the Logf type,
and avoiding build-tagged file (which wasn't quite a goal, but
happened and seemed nice)

Fixes #3570

Co-authored-by: Aaron Klotz <aaron@tailscale.com>
Change-Id: Iacd80c4720b7218365ec80ae143339d030842702
3 years ago
Josh Bleecher Snyder add6dc8ccc ipn/ipnlocal: make TestShrinkDefaultRoute hermetic
Make shrinkDefaultRoute a pure function.
Instead of calling interfaceRoutes, accept that information as parameters.
Hard-code those parameters in TestShrinkDefaultRoute.

Fixes #3580

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 8f43ddf1a2 ipn/ipnlocal, health: populate self node's Online bit in tailscale status
One option was to just hide "offline" in the text output, but that
doesn't fix the JSON output.

The next option was to lie and say it's online in the JSON (which then
fixes the "offline" in the text output).

But instead, this sets the self node's "Online" to whether we're in an
active map poll.

Fixes #3564

Change-Id: I9b379989bd14655198959e37eec39bb570fb814a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder 93ae11105d ipn/ipnlocal: clear magicsock's netmap on logout
magicsock was hanging onto its netmap on logout,
which caused tailscale status to display partial
information about a bunch of zombie peers.
After logout, there should be no peers.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick aac974a5e5 ipn/ipnlocal: deflake (mostly) TestStateMachine
I'm sick of this flaking. Even if this isn't the right fix, it
stops the alert fatigue.

Updates #3020

Change-Id: I4001c127d78f1056302f7741adec34210a72ee61
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 486059589b all: gofmt -w -s (simplify) tests
And it updates the build tag style on a couple files.

Change-Id: I84478d822c8de3f84b56fa1176c99d2ea5083237
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick cced414c7d net/dns/resolver: add Windows ExitDNS service support, using net package
Updates #1713
Updates #835

Change-Id: Ia71e96d0632c2d617b401695ad68301b07c1c2ec
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder 63cd581c3f safesocket: add ConnectionStrategy, provide control over fallbacks
fee2d9fad added support for cmd/tailscale to connect to IPNExtension.
It came in two parts: If no socket was provided, dial IPNExtension first,
and also, if dialing the socket failed, fall back to IPNExtension.

The second half of that support caused the integration tests to fail
when run on a machine that was also running IPNExtension.
The integration tests want to wait until the tailscaled instances
that they spun up are listening. They do that by dialing the new
instance. But when that dial failed, it was falling back to IPNExtension,
so it appeared (incorrectly) that tailscaled was running.
Hilarity predictably ensued.

If a user (or a test) explicitly provides a socket to dial,
it is a reasonable assumption that they have a specific tailscaled
in mind and don't want to fall back to IPNExtension.
It is certainly true of the integration tests.

Instead of adding a bool to Connect, split out the notion of a
connection strategy. For now, the implementation remains the same,
but with the details hidden a bit. Later, we can improve that.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 7b9c7bc42b ipn/ipnstate: remove old deprecated TailAddr IPv4-only field
It's been a bunch of releases now since the TailscaleIPs slice
replacement was added.

Change-Id: I3bd80e1466b3d9e4a4ac5bedba8b4d3d3e430a03
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Denton Gentry 878a20df29 net/dns: add GetBaseConfig to CallbackRouter.
Allow users of CallbackRouter to supply a GetBaseConfig
implementation. This is expected to be used on Android,
which currently lacks both a) platform support for
Split-DNS and b) a way to retrieve the current DNS
servers.

iOS/macOS also use the CallbackRouter but have platform
support for SplitDNS, so don't need getBaseConfig.

Updates https://github.com/tailscale/tailscale/issues/2116
Updates https://github.com/tailscale/tailscale/issues/988

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Brad Fitzpatrick c0701b130d ipn/ipnstate, cmd/tailscale: add Online bool to tailscale status & --json
Fixes #3533

Change-Id: I2f6f0d712cf3f987fba1c15be74cdb5c8d565f04
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Todd Neal c18dc57861 ipn/{ipnserver,ipnlocal}: support incoming Taildrop on TrueNAS
Signed-off-by: Todd Neal <todd@tneal.org>
3 years ago
Brad Fitzpatrick d3d503d997 ipn/ipnlocal: add HTTP/2 h2c server support to peerapi on non-mobile platforms
To make ExitDNS cheaper.

Might not finish client-side support in December before 1.20, but at
least server support can start rolling out ahead of clients being
ready for it.

Tested with curl against peerapi.

Updates #1713

Change-Id: I676fed5fb1aef67e78c542a3bc93bddd04dd11fe
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick abc00e9c8d ipn/{ipnserver,ipnlocal}: support incoming Taildrop on Synology
If the user has a "Taildrop" shared folder on startup and
the "tailscale" system user has read/write access to it,
then the user can "tailscale file cp" to their NAS.

Updates #2179 (would be fixes, but not super ideal/easy yet)

Change-Id: I68e59a99064b302abeb6d8cc84f7d2a09f764990
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 9c5c9d0a50 ipn/ipnlocal, net/tsdial: make SOCKS/HTTP dials use ExitDNS
And simplify, unexport some tsdial/netstack stuff in the the process.

Fixes #3475

Change-Id: I186a5a5cbd8958e25c075b4676f7f6e70f3ff76e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 9f6249b26d ipn/policy: treat DNS service as interesting so it's not filtered out
The control plane is currently still eating it.

Updates #1713

Change-Id: I66a0698599d6794ab1302f9585bf29e38553c884
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick adc5997592 net/tsdial: give netstack a Dialer, start refactoring name resolution
This starts to refactor tsdial.Dialer's name resolution to have
different stages: in-memory MagicDNS vs system resolution. A future
change will plug in ExitDNS resolution.

This also plumbs a Dialer into netstack and unexports the dnsMap
internals.

And it removes some of the async AddNetworkMapCallback usage and
replaces it with synchronous updates of the Dialer's netmap
from LocalBackend, since the LocalBackend has the Dialer too.

Updates #3475

Change-Id: Idcb7b1169878c74f0522f5151031ccbc49fe4cb4
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 43983a4a3b ipn/ipnlocal: run peerapi even if Taildrop storage not configured
Change-Id: I77f9ecbe4617d01d13aa1127fa59c83f2aa3e1b8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 44d0c1ab06 ipn/ipnlocal: resolve exit node IP to ID at EditPrefs time.
Without this, enabling an exit node immediately blackholes all traffic,
but doesn't correctly let it flow to the exit node until the next netmap
update.

Fixes #3447

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick ad3d6e31f0 net/tsdial: move macOS/iOS peerapi sockopt logic from LocalBackend
Change-Id: I812cae027c40c70cdc701427b1a1850cd9bcd60c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick c7fb26acdb net/tsdial: also plumb TUN name and monitor into tsdial.Dialer
In prep for moving stuff out of LocalBackend.

Change-Id: I9725aa9c3ebc7275f8c40e040b326483c0340127
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick c37af58ea4 net/tsdial: move more weirdo dialing into new tsdial package, plumb
Not done yet, but this move more of the outbound dial special casing
from random packages into tsdial, which aspires to be the one unified
place for all outbound dialing shenanigans.

Then this plumbs it all around, so everybody is ultimately
holding on to the same dialer.

As of this commit, macOS/iOS using an exit node should be able to
reach to the exit node's DoH DNS proxy over peerapi, doing the sockopt
to stay within the Network Extension.

A number of steps remain, including but limited to:

* move a bunch more random dialing stuff

* make netstack-mode tailscaled be able to use exit node's DNS proxy,
  teaching tsdial's resolver to use it when an exit node is in use.

Updates #1713

Change-Id: I1e8ee378f125421c2b816f47bc2c6d913ddcd2f5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 3ae6f898cf ipn/ipnlocal, net/dns/resolver: use exit node's DoH proxy when available
Updates #1713

Change-Id: I3695a40ec12d2b4e6dac41cf4559daca6dddd68e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 16abd7e07c ipn/ipnlocal: fix Content-Length in DoH DNS proxy response
Updates #1713

Change-Id: I912d90383b751ad97b32bcec55e8fedbcf4d3db8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 2a95ee4680 cmd/tailscale, ipn/ipnstate: note which nodes are exit nodes in status
Fixes #3446

Change-Id: Ib41d588e7fa434c02d134fa449f85b0e15083683
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 3181bbb8e4 cmd/tailscale: make file cp send files via tailscaled localapi
So Taildrop sends work even if the local tailscaled is running in
netstack mode, as it often is on Synology, etc.

Updates #2179 (which is primarily about receiving, but both important)

Change-Id: I9bd1afdc8d25717e0ab6802c7cf2f5e0bd89a3b2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick b811a316bc tailcfg, ipn/ipnlocal: advertise a Service when exit node DNS proxy available
Updates #1713

Change-Id: I20c8e2ad1062d82ef17363414e372133f4c7181e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 135580a5a8 tailcfg, ipn/ipnlocal, net/dns: forward exit node DNS on Unix to system DNS
Updates #1713

Change-Id: I4c073fec0992d9e01a9a4ce97087d5af0efdc68d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick c2efe46f72 ipn/ipnlocal: restrict exit node DoH server based on ACL'ed packet filter
Don't be a DoH DNS server to peers unless the Tailnet admin has permitted
that peer autogroup:internet access.

Updates #1713

Change-Id: Iec69360d8e4d24d5187c26904b6a75c1dabc8979
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Thomas Weiß f8cef1ba08 ipn/store/aws: support using sub-paths in parameters
Fixes #3431

Signed-off-by: Thomas Weiß <panos@unbunt.org>
3 years ago
David Anderson 097602b3ca ipn/ipnlocal: warn more precisely about IP forwarding issues on linux.
If IP forwarding is disabled globally, but enabled per-interface on all interfaces,
don't complain. If only some interfaces have forwarding enabled, warn that some
subnet routing/exit node traffic may not work.

Fixes #1586

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 33c541ae30 ipn/ipnlocal: populate self status from netmap in ipnlocal, not magicsock.
Fixes #1933

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 25525b7754 net/dns/resolver, ipn/ipnlocal: wire up peerapi DoH server to DNS forwarder
Updates #1713

Change-Id: Ia4ed9d8c9cef0e70aa6d30f2852eaab80f5f695a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder 955aa188b3 ipn/ipnlocal: fix logging
We were missing an argument here.
Also, switch to %q, in case anything weird
is happening with these strings.

Updates tailscale/corp#461

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 283ae702c1 ipn/ipnlocal: start adding DoH DNS server to peerapi when exit node
Updates #1713

Change-Id: I8d9c488f779e7acc811a9bc18166a2726198a429
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder 027b46d0c1 ipn/ipnstate: clarify PeerStatusLite.LastHandshake
And document the other fields, as long as we're here.

Updates #1182

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 4a59a2781a ipn/ipnlocal: export client metrics over peerapi to owner
Updates #3307

Change-Id: I41b1f3c16af5f385575e8d6cea70ae8386504dd8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 57b039c51d util/clientmetrics: add new package to add metrics to the client
And annotate magicsock as a start.

And add localapi and debug handlers with the Prometheus-format
exporter.

Updates #3307

Change-Id: I47c5d535fe54424741df143d052760387248f8d3
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Maisem Ali d6dde5a1ac ipn/ipnlocal: handle key extensions after key has already expired
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick 87137405e5 ipn/ipnserver: grant js/wasm all localapi permissions
Updates #3157

Change-Id: I3b63762583a4d655eac33ce3dfda37a1f5135a57
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 01bd789c26 ipn/ipnserver: add Server.LocalBackend accessor
Was done as part of e6fbc0cd54 for ssh
work, but wasn't committed yet. Including it here both to minimize the
ssh diff size, and because I need it for a separate change.

Change-Id: If6eb54a2ca7150ace96488ed14582c2c05ca3422
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick e6fbc0cd54 cmd/tailscaled, ipn/ipnserver: refactor ipnserver
More work towards removing the massive ipnserver.Run and ipnserver.Options
and making composable pieces.

Work remains. (The getEngine retry loop on Windows complicates things.)
For now some duplicate code exists. Once the Windows side is fixed
to either not need the retry loop or to move the retry loop into a
custom wgengine.Engine wrapper, then we can unify tailscaled_windows.go
too.

Change-Id: If84d16e3cd15b54ead3c3bb301f27ae78d055f80
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 337757a819 ipn/ipnlocal, control/controlclient: don't propagate all map errors to UI
Fixes regression from 81cabf48ec which made
all map errors be sent to the frontend UI.

Fixes #3230

Change-Id: I7f142c801c7d15e268a24ddf901c3e6348b6729c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 0532eb30db all: replace tailcfg.DiscoKey with key.DiscoPublic.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 649f7556e8 cmd/tailscaled, ipn: add tailscaled --statedir flag for var directory
Fixes #2932

Change-Id: I1aa2b323ad542386d140f8336bcc4dcbb8310bd0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick c7bff35fee ipn/ipnlocal: add owner-only debug handler to get process env
For debugging Synology. Like the existing goroutines handler, in that
it's owner-only.

Change-Id: I852f0626be8e1c0b6794c1e062111d14adc3e6ac
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder 3fd5f4380f util/multierr: new package
github.com/go-multierror/multierror served us well.
But we need a few feature from it (implement Is),
and it's not worth maintaining a fork of such a small module.

Instead, I did a clean room implementation inspired by its API.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
David Anderson 7e6a1ef4f1 tailcfg: use key.NodePublic in wire protocol types.
Updates #3206.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 7e8d5ed6f3 ipn: use key.NodePublic instead of tailcfg.NodeKey
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson c17250cee2 ipn/ipnstate: use key.NodePublic instead of tailcfg.NodeKey.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 418adae379 various: use NodePublic.AsNodeKey() instead of tailcfg.NodeKeyFromNodePublic()
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson eeb97fd89f various: remove remaining uses of key.NewPrivate.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 429632d32c ipn/ipnlocal: treat js/wasm interative logins as ephemeral for now
At least until js/wasm starts using browser LocalStorage or something.
But for the foreseeable future, any login from a browser should
be considered ephemeral as the tab can close at any time and lose
the wireguard key, never to be seen again.

Updates #3157

Change-Id: I6c410d86dc7f9f233c3edd623313d9dee2085aac
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson c1d009b9e9 ipn/ipnstate: use key.NodePublic instead of the generic key.Public.
Updates #3206.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 96ad68c5d6 ipn: remove mention of wgkey in comment.
Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
David Anderson 0c546a28ba types/persist: use new node key type.
Updates #3206

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 22dbaa0894 ipn/ipnserver: add New, Server.Server
Change-Id: I1dc85a5131b9a628d7fc780fde7103492cd3f1f8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick d381bc2b6c ipn/ipnserver: move the unserved connection logic to a Listener
So future refactors can only deal with a net.Listener and
be unconcerned with their caller's (Windows-specific) struggles.

Change-Id: I0af588b9a769ab65c59b0bd21f8a0c99abfa1784
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick c23a378f63 ipn/ipnserver: start refactoring ipnserver.Run into smaller pieces
I'll keep ipnserver.Run for compatibility, but it'll be a wrapper
around several smaller pieces. (more testable too)

For now, start untangling some things in preparation.

Plan is to have to have a constructor for the just-exported
ipnserver.Server type that takes a LocalBackend and can
accept (in a new method) on a provided listener.

Change-Id: Ide73aadaac1a82605c97a2af1321d0d8f60b2a8c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 869999955d ipn/ipnserver: export server type as Server
It's all opaque, there's no constructor, and no exported
methods, so it's useless at this point, but this is one
small refactoring step.

Change-Id: Id961e8880cf0c84f1a0a989eefff48ecb3735add
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Maisem Ali 81cabf48ec control/controlclient,tailcfg: propagate registration errors to the frontend
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Aaron Klotz 6425f497b1 ipn/ipnserver paths: add paths.LegacyStateFilePath
Moving this information into a centralized place so that it is accessible to
code in subsequent commits.

Updates #3011

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
3 years ago
Joe Tsai 9af27ba829 cmd/cloner: mangle "go:generate" in cloner.go
The "go generate" command blindly looks for "//go:generate" anywhere
in the file regardless of whether it is truly a comment.
Prevent this false positive in cloner.go by mangling the string
to look less like "//go:generate".

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
3 years ago
Maisem Ali c6d3f622e9 ipn/ipnlocal: use netaddr.IPSetBuilder when constructing list of interface IPPrefixes.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick ddf3394b40 ipn/ipnlocal: don't try to block localhost traffic when using exit nodes
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 751c42c097 ipn: fix formatting of ExitNodeIP in MaskedPrefs
%#v on a netaddr.IP showed the netaddr.IP innards.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
nicksherron f01ff18b6f all: fix spelling mistakes
Signed-off-by: nicksherron <nsherron90@gmail.com>
3 years ago
Maxime VISONNEAU 4528f448d6 ipn/store/aws, cmd/tailscaled: add AWS SSM ipn.StateStore implementation
From https://github.com/tailscale/tailscale/pull/1919 with
edits by bradfitz@.

This change introduces a new storage provider for the state file. It
allows users to leverage AWS SSM parameter store natively within
tailscaled, like:

    $ tailscaled --state=arn:aws:ssm:eu-west-1:123456789:parameter/foo

Known limitations:
- it is not currently possible to specific a custom KMS key ID

RELNOTE=tailscaled on Linux supports using AWS SSM for state

Edits-By: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Maxime VISONNEAU <maxime.visonneau@gmail.com>
3 years ago
Brad Fitzpatrick cb4a2c00d1 ipn: remove unused Prefs.OSVersion and Prefs.DeviceModel
iOS and Android no longer use these. They both now (as of today)
use the hostinfo.SetFoo setters instead.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 67e5fabdbd hostinfo, ipn/ipnlocal: add SetPackage, remove ipnlocal hacks
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 81269fad28 hostinfo: add SetOSVersion like SetDeviceModel, deprecate ipn.Prefs way
Turns out the iOS client has been only sending the OS version it first
started at. This whole hostinfo-via-prefs mechanism was never a good idea.
Start removing it.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 22a1a5d7cf ipn/ipnlocal: for IPv6-only nodes, publish IPv6 MagicDNS records of peers
See https://github.com/tailscale/tailscale/issues/2970#issuecomment-931885268

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 6d43cbc325 ipn/ipnlocal: make sure mobile clients don't use the old control server URL
The new frontends are better for battery.

Updates #2442
Updates tailscale/corp#2750

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
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 3b3994f0db ipn{,/localapi,ipnlocal}: infer cert dir from state file location
This fixes "tailscale cert" on Synology where the var directory is
typically like /volume2/@appdata/Tailscale, or any other tailscaled
user who specifies a non-standard state file location.

This is a interim fix on the way to #2932.

Fixes #2927
Updates #2932

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 3a72ebb109 ipn: test TestFileStore in a fresh subdirectory
Fixes #2923

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Aaron Klotz 21e9f98fc1 ipn, paths: unconditionally attempt to set state dir perms, but only if the state dir is ours
We unconditionally set appropriate perms on the statefile dir.

We look at the basename of the statefile dir, and if it is "tailscale", then
we set perms as appropriate.

Fixes #2925
Updates #2856

Signed-off-by: Aaron Klotz <aaron@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
David Anderson 1eabb5b2d9 ipn: don't log IPN messages that may contain an authkey.
Signed-off-by: David Anderson <danderson@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 7d8227e7a6 logpolicy: don't use C:\ProgramData use for tailscale-ipn GUI's log dir
tailscale-ipn.exe (the GUI) shouldn't use C:\ProgramData.

Also, migrate the earlier misnamed wg32/wg64 conf files if they're present.
(That was stopped in 2db877caa3, but the
files exist from fresh 1.14 installs)

Updates #2856

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Denton Gentry 280c84e46a ipn/ipnserver, paths, logpolicy: move Window config files out of %LocalAppData%
C:\WINDOWS\system32\config\systemprofile\AppData\Local\
is frequently cleared for almost any reason: Windows updates,
System Restore, even various System Cleaner utilities.

The server-state.conf file in AppData\Local could be deleted
at any time, which would break login until the node is removed
from the Admin Panel allowing it to create a new key.

Carefully copy any AppData state to ProgramData at startup.
If copying the state fails, continue to use AppData so at
least there will be connectivity. If there is no state,
use ProgramData.

We also migrate the log.conf file. Very old versions of
Tailscale named the EXE tailscale-ipn, so the log conf was
tailscale-ipn.log.conf and more recent versions preserved
this filename and cmdName in logs. In this migration we
always update the filename to
c:\ProgramData\Tailscale\tailscaled.log.conf

Updates https://github.com/tailscale/tailscale/issues/2856

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
3 years ago
Brad Fitzpatrick aae622314e tailcfg, health: add way for control plane to add problems to health check
So if the control plane knows that something's broken about the node, it can
include problem(s) in MapResponse and "tailscale status" will show it.
(and GUIs in the future, as it's in ipnstate.Status/JSON)

This also bumps the MapRequest.Version, though it's not strictly
required. Doesn't hurt.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder d5ab18b2e6 cmd/cloner: add Clone context to regen struct assignments
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 07c09f470d ipn/ipnlocal: do not shut down the backend halfway through TestStateMachine
LocalBackend.Shutdown's docs say:

> The backend can no longer be used after Shutdown returns.

Nevertheless, TestStateMachine blithely calls Shutdown, talks some smack,
and continues on, expecting things to work. Other uses of Shutdown
in the codebase are as intended.

Things mostly kinda work anyway, except that the wgengine.Engine has been
shut down, so calls to Reconfig fail. Those get logged:

> local.go:603: wgengine status error: engine closing; no status

but otherwise ignored.

However, the Reconfig failure caused one fewer call to pause/unpause
than normal. Now the assertCalls lines match the equivalent ones
earlier in the test.

I don't see an obvious correct replacement for Shutdown in the context
of this test; I'm not sure entirely what it is trying to accomplish.
It is possible that many of the tests remaining after the prior call
to Shutdown are now extraneous. They don't harm anything, though,
so err on the side of safety and leave them for now.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder f834a4ade5 ipn/ipnlocal: fix minor typo in comment
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 221cc5f8f2 ipn/ipnlocal: reduce line noise in tests
Use helpers and variadic functions to make the call sites
a lot easier to read, since they occur a lot.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 45d3174c0d ipn/ipnlocal: add LocalBackend.broadcastStatusChanged
To reduce repetition.

Also, document why we acquire the lock.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder b7ede14396 Revert "ipn/ipnlocal: remove locks around sync.Cond.Broadcast call"
Reason for revert: Causes ipnlocal tests to deadlock intermittently.

This reverts commit 1b15349e01.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 3ea8cf9c62 ipn/ipnlocal: use quicktest.IsNotNil in tests
This didn't exist when the test was written.
Now it does (frankban/quicktest#94); use it.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 1b15349e01 ipn/ipnlocal: remove locks around sync.Cond.Broadcast call
They are unnecessary.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 3b58c118dd ipn/ipnlocal: inline LocalBackend.getEngineStatus
For uniformity.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 0f4c0e558b ipn/ipnlocal: use a switch statement instead of an else-if chain
For clarity.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 7421ba91ec ipn/ipnlocal: only call UpdateEndpoints when the endpoints change
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder b681edc572 ipn/ipnlocal: add failing test
Concurrent calls to LocalBackend.setWgengineStatus
could result in some of the status updates being dropped.
This was exacerbated by 92077ae78c,
which increases the probability of concurrent status updates,
causing test failures (tailscale/corp#2579).

It's going to take a bit of work to fix this test.
The ipnlocal state machine is difficult to reason about,
particularly in the face of concurrency.
We could fix the test trivially by throwing a new mutex around
setWgengineStatus to serialize calls to it,
but I'd like to at least try to do better than cosmetics.

In the meantime, commit the test.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 7693d36aed all: close fake userspace engines when tests complete
We were leaking FDs.
In a few places, switch from defer to t.Cleanup.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 4bbf5a8636 cmd/cloner: reduce diff noise when changing command
Spelling out the command to run for every type
means that changing the command makes for a large, repetitive diff.
Stop doing that.

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 48933b0382 ipn/ipnlocal: flesh out the dnsConfigForNetmap tests
Follow-up to #2805 and #2806

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 7fe6ecf165 ipn/ipnlocal: add MagicDNS records for IPv6-only nodes
Updates #2268

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 90b0cd0c51 ipn/ipnlocal: start adding some netmap to DNS config tests
Follow-up to #2805

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 30a614f9b9 ipn/ipnlocal: return early, outdent a bunch in dnsConfigForNetmap
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 2bb0eb5f7e ipn/ipnlocal: pull out dns.Config construction to its own func
In prep for other bug fixes & tests. It's hard to test when it was
intermingled into LocalBackend.authReconfig.

Now it's a pure function.

And rename variable 'uc' (user config?) to the since idiomatic
'prefs'.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Crawshaw 9502b515f1 net/dns: replace resolver IPs with type for DoH
We currently plumb full URLs for DNS resolvers from the control server
down to the client. But when we pass the values into the net/dns
package, we throw away any URL that isn't a bare IP. This commit
continues the plumbing, and gets the URL all the way to the built in
forwarder. (It stops before plumbing URLs into the OS configurations
that can handle them.)

For #2596

Signed-off-by: David Crawshaw <crawshaw@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
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 5bacbf3744 wgengine/magicsock, health, ipn/ipnstate: track DERP-advertised health
And add health check errors to ipnstate.Status (tailscale status --json).

Updates #2746
Updates #2775

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 88bd796622 tailcfg,ipn/ipnlocal: support DNSConfig.Routes with empty values [mapver 23]
Fixes #2706
Updates #1235

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Matt Drollette c1aa5a2e33 ipn/ipnlocal: update requested tags in host info
Fixes #2641

Signed-off-by: Matt Drollette <matt@drollette.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
Brad Fitzpatrick faa891c1f2 client/tailscale,ipn/localapi: warn on tailscale/tailscaled version skew
Fixes #1905

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 56db3e2548 ipn/localapi: refresh ACME certs in background two weeks in advance
Updates #1235

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