Commit Graph

606 Commits (04d24d3a38da5469458f56ddf8f8575175c02603)

Author SHA1 Message Date
Alex Brainman 7689213aaa cmd/tailscaled: add subcommands to install and remove tailscaled Windows service
This change implements Windows version of install-system-daemon and
uninstall-system-daemon subcommands. When running the commands the
user will install or remove Tailscale Windows service.

Updates #1232

Signed-off-by: Alex Brainman <alex.brainman@gmail.com>
4 years ago
Brad Fitzpatrick f99e63bb17 ipn: don't Logout when Windows GUI disconnects
Logout used to be a no-op, so the ipnserver previously synthensized a Logout
on disconnect. Now that Logout actually invalidates the node key that was
forcing all GUI closes to log people out.

Instead, add a method to LocalBackend to specifically mean "the
Windows GUI closed, please forget all the state".

Fixes tailscale/corp#1591 (ignoring the notification issues, tracked elsewhere)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 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>
4 years ago
Brad Fitzpatrick 8f3e453356 ipn, cmd/tailscale/cli: add pref to configure sudo-free operator user
From discussion with @danderson.

Fixes #1684 (in a different way)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 49808ae6ea ipn{,/ipnlocal}, cmd/tailscale/cli: don't check pref reverts on initial up
The ipn.NewPrefs func returns a populated ipn.Prefs for historical
reasons. It's not used or as important as it once was, but it hasn't
yet been removed. Meanwhile, it contains some default values that are
used on some platforms. Notably, for this bug (#1725), Windows/Mac use
its Prefs.RouteAll true value (to accept subnets), but Linux users
have always gotten a "false" value for that, because that's what
cmd/tailscale's CLI default flag is _for all operating systems_.  That
meant that "tailscale up" was rightfully reporting that the user was
changing an implicit setting: RouteAll was changing from true with
false with the user explicitly saying so.

An obvious fix might be to change ipn.NewPrefs to return
Prefs.RouteAll == false on some platforms, but the logic is
complicated by darwin: we want RouteAll true on windows, android, ios,
and the GUI mac app, but not the CLI tailscaled-on-macOS mode. But
even if we used build tags (e.g. the "redo" build tag) to determine
what the default is, that then means we have duplicated and differing
"defaults" between both the CLI up flags and ipn.NewPrefs. Furthering
that complication didn't seem like a good idea.

So, changing the NewPrefs defaults is too invasive at this stage of
the release, as is removing the NewPrefs func entirely.

Instead, tweak slightly the semantics of the ipn.Prefs.ControlURL
field. This now defines that a ControlURL of the empty string means
both "we're uninitialized" and also "just use the default".

Then, once we have the "empty-string-means-unintialized" semantics,
use that to suppress "tailscale up"'s recent implicit-setting-revert
checking safety net, if we've never initialized Tailscale yet.

And update/add tests.

Fixes #1725

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 4df6e62fbc ipn: add DefaultControlURL const, replace few literals with it
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick f1d45bc4bb cmd/tailscale/cli: pull out prefsFromUpArgs for testability, add tests
Will add more tests later but this locks in all the existing warnings
and errors at least, and some of the existing non-error behavior.

Mostly I want this to exist before I actually fix #1725.

Updates #1725

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 4948ff6ecb cmd/tailscale/cli: treat nil and non-nil zero length slices as equiv prefs
Updates #1725

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick eb6115e295 cmd/tailscaled: let SOCKS5 dial non-Tailscale addrs in userspace mode
Fixes #1617

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 2f422434aa cmd/tailscale/cli: wait on the right contexts in up
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 6da812b4cf cmd/tailscale/cli: avoid a spammy log message on SIGINT
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Ross Zurowski c748c20fba
cmd/tailscale: fix command descriptions (#1710)
Signed-off-by: Ross Zurowski <ross@rosszurowski.com>
4 years ago
Naman Sood 5ea53891fe
cmd/tailscaled: populate netstack variable to use dialer in SOCKS5
Signed-off-by: Naman Sood <mail@nsood.in>
4 years ago
Brad Fitzpatrick 75b99555f3 cmd/tailscale/cli: let ip take a peername
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 762180595d ipn/ipnstate: add PeerStatus.TailscaleIPs slice, deprecate TailAddr
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick a8d95a18b2 cmd/tailscale/cli: add up --unattended for Windows
RELNOTE=Windows CLI behavior change: ForceDaemon now off by default

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick a08d978476 cmd/tailscale/cli: make push get peerapi base via localapi, not TSMP ping
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 1dc2cf4835 cmd/tailscale/cli: add push --targets to list possible targets
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick d17f96b586 cmd/tailscale/cli: restore SIGINT/SIGTERM on context cancel
This fixes Ctrl-C not interrupting "tailscale push".

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick db5e269463 client/tailscale/apitype: move local API types to new apitype package
They were scattered/duplicated in misc places before.

It can't be in the client package itself for circular dep reasons.

This new package is basically tailcfg but for localhost
communications, instead of to control.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Maisem Ali 1b9d8771dc ipn/ipnlocal,wgengine/router,cmd/tailscale: add flag to allow local lan access when routing traffic via an exit node.
For #1527

Signed-off-by: Maisem Ali <maisem@tailscale.com>
4 years ago
David Anderson 854d5d36a1 net/dns: return error from NewOSManager, use it to initialize NM.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 9972c02b60 cmd/tailscale/cli: don't let up change prefs based on implicit flag values
This changes the behavior of "tailscale up".

Previously "tailscale up" always did a new Start and reset all the settings.

Now "tailscale up" with no flags just brings the world [back] up.
(The opposite of "tailscale down").

But with flags, "tailscale up" now only is allowed to change
preferences if they're explicitly named in the flags. Otherwise it's
an error. Or you need to use --reset to explicitly nuke everything.

RELNOTE=tailscale up change

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 00d641d9fc ipn/localapi: move EditPrefs to localapi
Follow-up/revision to recent 53cfff109b which
added EditPrefs.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 5480189313 net/dns: implement a DNS override workaround for legacy resolvconf.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 958782c737 cmd/{tailscale,tailscaled}: use netstack for subnet routing on Synology
Updates #707
Fixes #451
Fixes tailscale/tailscale-synology#52 (just make it work by default)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 3b451509dd cmd/tailscale/cli: make advertise-{routes,exit-node} available unconditionally
It was only Linux and BSDs before, but now with netstack mode, it also works on
Windows and darwin. It's not worth limiting it to certain platforms.

Tailscaled itself can complain/fail if it doesn't like the settings
for the mode/OS it's operating under.

Updates #707

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 83402e2753 cmd/tailscale/cli: show nicer status output when logged out
Also nicer output when running "down".

Fixes #1680

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 3167e55ddf ipn/{ipnlocal,localapi}, cmd/tailscale: add logout command
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 6a7912e37a cmd/tailscale/cli: add debug mode to push slowly for testing
Also set Content-Length when known, and fail explicitly on sending
directories for now.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 950fc28887 ipn, paths, cmd/tailscaled: remove LegacyConfigPath, relaynode migration
It is time.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 50b309c1eb ipn/localapi, cmd/tailscale: add API to get prefs, CLI debug command to show
Updates #1436

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick d4b609e138 cmd/tailscale/cli: fix bug in earlier tailscale debug --local-creds addition
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 799973a68d ipn: move Options.Notify to its own method
We already had SetNotifyCallback elsewhere on controlclient, so use
that name.

Baby steps towards some CLI refactor work.

Updates tailscale/tailscale#1436
4 years ago
Brad Fitzpatrick d488678fdc cmd/tailscaled, wgengine{,/netstack}: add netstack hybrid mode, add to Windows
For #707

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 1f99f889e1 ipn/{ipnlocal,localapi}: add localapi handler to dial/proxy file PUTs
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick ea9e68280d cmd/tailscale/cli: add debug command to print localapi curl command 4 years ago
David Anderson bc4381447f net/tstun: return the real interface name at device creation.
This is usually the same as the requested interface, but on some
unixes can vary based on device number allocation, and on Windows
it's the GUID instead of the pretty name, since everything relating
to configuration wants the GUID.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 7d84ee6c98 net/dns: unify the OS manager and internal resolver.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 4c61ebacf4 wgengine: move DNS configuration out of wgengine/router.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Josh Bleecher Snyder b3ceca1dd7 wgengine/...: split into multiple receive functions
Upstream wireguard-go has changed its receive model.
NewDevice now accepts a conn.Bind interface.

The conn.Bind is stateless; magicsock.Conns are stateful.
To work around this, we add a connBind type that supports
cheap teardown and bring-up, backed by a Conn.

The new conn.Bind allows us to specify a set of receive functions,
rather than having to shoehorn everything into ReceiveIPv4 and ReceiveIPv6.
This lets us plumbing DERP messages directly into wireguard-go,
instead of having to mux them via ReceiveIPv4.

One consequence of the new conn.Bind layer is that
closing the wireguard-go device is now indistinguishable
from the routine bring-up and tear-down normally experienced
by a conn.Bind. We thus have to explicitly close the magicsock.Conn
when the close the wireguard-go device.

One downside of this change is that we are reliant on wireguard-go
to call receiveDERP to process DERP messages. This is fine for now,
but is perhaps something we should fix in the future.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
David Anderson f77ba75d6c wgengine/router: move DNS cleanup into the DNS package.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 39b9ab3522 cmd/tailscaled: rename isUserspace to useNetstack
The bool was already called useNetstack at the caller.
isUserspace (to mean netstack) is confusing next to wgengine.NewUserspaceEngine, as that's
a different type of 'userspace'.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 90f82b6946 net/dns/resolver: add live reconfig, plumb through to ipnlocal.
The resolver still only supports a single upstream config, and
ipn/wgengine still have to split up the DNS config, but this moves
closer to unifying the DNS configs.

As a handy side-effect of the refactor, IPv6 MagicDNS records exist
now.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson d99f5b1596 net/dns/resolver: factor the resolver out into a sub-package.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 53cfff109b ipn: replace SetWantRunning(bool) with EditPrefs(MaskedPrefs)
This adds a new ipn.MaskedPrefs embedding a ipn.Prefs, along with a
bunch of "has bits", kept in sync with tests & reflect.

Then it adds a Prefs.ApplyEdits(MaskedPrefs) method.

Then the ipn.Backend interface loses its weirdo SetWantRunning(bool)
method (that I added in 483141094c for "tailscale down")
and replaces it with EditPrefs (alongside the existing SetPrefs for now).

Then updates 'tailscale down' to use EditPrefs instead of SetWantRunning.

In the future, we can use this to do more interesting things with the
CLI, reconfiguring only certain properties without the reset-the-world
"tailscale up".

Updates #1436

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Maisem Ali 1c98c5f103 cmd/tailscaled: remove tailscaled binary on uninstall-system-daemon
Signed-off-by: Maisem Ali <maisem@tailscale.com>
4 years ago
Maisem Ali db13b2d0c8 cmd/tailscale, ipn/localapi: add "tailscale bugreport" subcommand
Adding a subcommand which prints and logs a log marker. This should help
diagnose any issues that users face.

Fixes #1466

Signed-off-by: Maisem Ali <maisem@tailscale.com>
4 years ago
Brad Fitzpatrick 1bd14a072c cmd/tailscale, ipn/localapi: move IP forwarding check to tailscaled, API
Instead of having the CLI check whether IP forwarding is enabled, ask
tailscaled. It has a better idea. If it's netstack, for instance, the
sysctl values don't matter. And it's possible that only the daemon has
permission to know.

Fixes #1626

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Crawshaw ea714c6054 cmd/tailscale/cli: split out web.css file
CSS formatted with:

	npx prettier --use-tabs --write cmd/tailscale/cli/web.css

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
Ross Zurowski 8d57bce5ef
cmd/tailscale: add initial web UI (#1621)
Signed-off-by: Ross Zurowski <ross@rosszurowski.com>
4 years ago
Brad Fitzpatrick 6d1a9017c9 ipn/{ipnlocal,localapi}, client/tailscale: add file get/delete APIs
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 0301ccd275 cmd/tailscale/cli: add debug --ipn mode
To watch the IPN message bus.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Crawshaw e67f1b5da0 client/tailscale, cmd/tailscale/cli: plumb --socket through
Without this, `tailscale status` ignores the --socket flag on macOS and
always talks to the IPNExtension, even if you wanted it to inspect a
userspace tailscaled.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
Brad Fitzpatrick 3a1eae5b6b cmd/tailscale/cli: factor out filename selection
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 1e26d4ae19 cmd/tailscale/cli: add push subcommand
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick eeacf84dae cmd/tailscale/cli: factor out tailscaleIPFromArg from ping command
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 41e4e02e57 net/{packet,tstun}: send peerapi port in TSMP pongs
For discovery when an explicit hostname/IP is known. We'll still
also send it via control for finding peers by a list.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Crawshaw f0863346c2 cmd/tailscale: add web subcommand
Used as an app frontend UI on Synology.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
4 years ago
David Anderson 0fb738760f wgengine: make Tun optional again, default to fake.
This makes setup more explicit in prod codepaths, without
requiring a bunch of arguments or helpers for tests and
userspace mode.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 93a4aa697c wgengine: default Router to a no-op router.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 440effb21a wgengine: remove Config.TUN argument. 4 years ago
David Anderson 2df8adef9d wgengine: make the tun.Device required at construction.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 82ab7972f4 net/tstun: rename NewFakeTUN to NewFake.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 588b70f468 net/tstun: merge in wgengine/tstun.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 018200aeba net/tstun: rename from net/tun.
We depend on wireguard-go/tun, identical leaf packages can be
confusing in code.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 2b4bfeda1a wgengine: pass in an explicit router.Router, rather than a generator.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 9ea5cbf81f cmd/tailscaled: readd tun.Diagnose call, mistakenly lost during refactor.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 44d9929208 wgengine: remove Config.TUNName, require caller to create device.
Also factors out device creation and associated OS workarounds to
net/tun.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Adrian Dewhurst 04dd6d1dae
control/controlclient: sign RegisterRequest (#1549)
control/controlclient: sign RegisterRequest

Some customers wish to verify eligibility for devices to join their
tailnets using machine identity certificates. TLS client certs could
potentially fulfill this role but the initial customer for this feature
has technical requirements that prevent their use. Instead, the
certificate is loaded from the Windows local machine certificate store
and uses its RSA public key to sign the RegisterRequest message.

There is room to improve the flexibility of this feature in future and
it is currently only tested on Windows (although Darwin theoretically
works too), but this offers a reasonable starting place for now.

Updates tailscale/coral#6

Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
4 years ago
David Anderson 9f7f2af008 wgengine/router/dns: move to net/dns.
Preparation for merging the APIs and whatnot.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick dad10fee9c Revert "cmd/tailscaled: split package main into main shim + package"
This reverts commit b81bd8025b.

Not needed. See:

https://github.com/golang/go/wiki/Modules#how-can-i-track-tool-dependencies-for-a-module
4 years ago
Brad Fitzpatrick 82c4cb765c cmd/tailscaled: split package main into main shim + package
So we can empty import the guts of cmd/tailscaled from another
module for go mod tidy reasons.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick b7f0e39bf2 cmd/tailscale: add "tailscale ip [-4] [-6]" command
This adds an easy and portable way for us to document how to get
your Tailscale IP address.

$ tailscale ip
100.74.70.3
fd7a:115c:a1e0:ab12:4843:cd96:624a:4603

$ tailscale ip -4
100.74.70.3

$ tailscale ip -6
fd7a:115c:a1e0:ab12:4843:cd96:624a:4603

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 2384c112c9 net/packet, wgengine/{filter,tstun}: add TSMP ping
Fixes #1467

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 01b90df2fa net/packet, wgengine/filter: support SCTP
Add proto to flowtrack.Tuple.

Add types/ipproto leaf package to break a cycle.

Server-side ACL work remains.

Updates #1516

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 0406a7436a cmd/tailscale/cli: use double hypens, make default usage func more clear
Mash up some code from ffcli and std's flag package to make a default
usage func that's super explicit for those not familiar with the Go
style flags. Only show double hyphens in usage text (but still accept both),
and show default values, and only show the proper usage of boolean flags.

Fixes #1353
Fixes #1529

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 0a02aaf813 control, ipn, tailcfg: remove golang.org/x/oauth2 dep, add tailcfg.Oauth2Token
golang.org/x/oauth2 pulls in App Engine and grpc module dependencies,
screwing up builds that depend on this module.

Some background on the problem:
https://go.googlesource.com/proposal/+/master/design/36460-lazy-module-loading.md

Fixes tailscale/corp#1471

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Aleksandar Pesic 7b57310966 net/interfaces: use windows API to get the default route instead of parsing `route print` output
Fixes: #1470

Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>
4 years ago
Brad Fitzpatrick 439d70dce2 cmd/tailscale, ipn/localapi: get daemon version from localapi status
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick d0dffe33c0 cmd/tailscale, ipn/localapi: use localapi for status, not IPN acrobatics
Yay simpler code.

Tested on Linux, macOS and Windows.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 0c3e9722cc cmd/tailscale/cli: fix typo in comment
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Christine Dodrill a480b1baa5
logpolicy: set log target on windows based on a registry key (#1542)
Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Brad Fitzpatrick aa79a57f63 wgengine/netstack: use inet.af/netstack, remove 64-bit only limitation
This reverts the revert commit 84aba349d9.

And changes us to use inet.af/netstack.

Updates #1518

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 84aba349d9 Revert "wgengine/netstack: update gvisor to remove 64-bit only limitation"
Breaks our corp repo due to gRPC dependency hell.

This reverts commit d42f8b7f9a.
4 years ago
Brad Fitzpatrick 27c4dd9a97 Revert "cmd/tailscaled, ipn/{ipnlocal,ipnserver}: let netstack get access to LocalBackend"
This reverts commit 2bc518dcb2.

@namansood didn't end up needing it in his 770aa71ffb.
4 years ago
Brad Fitzpatrick d42f8b7f9a wgengine/netstack: update gvisor to remove 64-bit only limitation
gVisor fixed their google/gvisor#1446 so we can include gVisor mode
on 32-bit machines.

A few minor upstream API changes, as normal.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 98ab533324 cmd/tailscale/cli: include GOOS in BSD warning message
instead of just lowercase "bsd"

Updates #1475

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 380a3526f6 cmd/tailscale/cli: warn if using subnet routing on BSD
Fixes #1475.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Naman Sood 770aa71ffb client, cmd/hello, ipn, wgengine: fix whois for netstack-forwarded connections
Updates #504

Updates #707

Signed-off-by: Naman Sood <mail@nsood.in>
4 years ago
Brad Fitzpatrick 44ab0acbdb net/portmapper, wgengine/monitor: cache gateway IP info until link changes
Cuts down allocs & CPU in steady state (on regular STUN probes) when network
is unchanging.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Christine Dodrill deff20edc6
cmd/tailscale/cli: don't permit setting self IP as exit node (#1491)
This change makes it impossible to set your own IP address as the exit node for this system.

Fixes #1489

Signed-off-by: Christine Dodrill <xe@tailscale.com>
4 years ago
Brad Fitzpatrick 2bc518dcb2 cmd/tailscaled, ipn/{ipnlocal,ipnserver}: let netstack get access to LocalBackend
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick d491adbf09 cmd/tailscaled: on Synology, fall back to netstack if needed
Updates tailscale/tailscale-synology#35

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick cc99059fc2 Revert "--advertise-routes option enabled in Mac tailscale CLI; it checks for IP forwarding enabled"
This reverts commit 08949d4ef1.

I think this code was aspirational. There's no code that sets up the
appropriate NAT code using pfctl/etc. See #911 and #1475.

Updates #1475
Updates #911
4 years ago
Brad Fitzpatrick 66480755c2 cmd/tailscale/cli: document how to see subcommand usage
From user feedback.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick d3e56aa979 cmd/tailscaled: fix monitor debug tool's output
Logic was backwards, introduced in earlier monitor refactoring last
week in e3df29d488.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Aleksandar Pesic 258d0e8d9a wgengine/monitor: simplify the Windows monitor to make it more reliable
Updates tailscale/tailscale#1414

Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>
4 years ago
Brad Fitzpatrick bc159dc689 cmd/tailscale: fix depaware.txt
git fail.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick c136f48b79 cmd/tailscale/cli: restore hidden debug subcommand
The debub subcommand was moved in
6254efb9ef because the monitor brought
in tons of dependencies to the cmd/tailscale binary, but there wasn't
any need to remove the whole subcommand itself.

Add it back, with a tool to dump the local daemon's goroutines.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 0d0ec7853c cmd/tailscaled: don't require root on darwin with --tun=userspace-networking
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick c0cdca6d06 cmd/tailscaled, logtail: share link monitor from wgengine to logtail
Part of overall effort to clean up, unify, use link monitoring more,
and make Tailscale quieter when all networks are down. This is especially
bad on macOS where we can get killed for not being polite it seems.
(But we should be polite in any case)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson 793cb131f0 wgengine/router: toggle killswitch when using default routes on windows.
Fixes #1398.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 30a37622b4 cmd/hello: break out local HTTP client into client/tailscale
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick b46e337cdc cmd/hello: use go:embed for the template
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 9df4185c94 control/controlclient, net/{dnscache,dnsfallback}: add DNS fallback mechanism
Updates #1405
Updates #1403

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 03c344333e cmd/tailscale: remove Windows console fixing
Not needed, as we don't build this as a GUI app ever.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick e3df29d488 wgengine{,/monitor}: move interface state fetching/comparing to monitor
Gets it out of wgengine so the Engine isn't responsible for being a
callback registration hub for it.

This also removes the Engine.LinkChange method, as it's no longer
necessary.  The monitor tells us about changes; it doesn't seem to
need any help. (Currently it was only used by Swift, but as of
14dc790137 we just do the same from Go)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 38dc6fe758 cmd/tailscaled, wgengine: remove --fake, replace with netstack
And add a --socks5-server flag.

And fix a race in SOCKS5 replies where the response header was written
concurrently with the copy from the backend.

Co-authored with Naman Sood.

Updates #707
Updates #504

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick ee6475a44d wgengine: unify NewUserspaceEngine, NewUserspaceEngineAdvanced
Also rename EngineConfig to Config to avoid wgengine.EngineConfig
stutter.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick dda03a911e wgengine/monitor: change API to permit multiple independent callbakcks
Currently it assumes exactly 1 registered callback. This changes it to
support 0, 1, or more than 1.

This is a step towards plumbing wgengine/monitor into more places (and
moving some of wgengine's interface state fetching into monitor in a
later step)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Naman Sood fec9dcbda1 wgengine/netstack: start SOCKS5 server in netstack mode
Updates #707
Updates #504

Signed-off-by: Naman Sood <mail@nsood.in>
4 years ago
Brad Fitzpatrick f68431fc02 cmd/derper: add /bootstrap-dns handler
For option (d) of #1405.

For an HTTPS request of /bootstrap-dns, this returns e.g.:

{
  "log.tailscale.io": [
    "2600:1f14:436:d603:342:4c0d:2df9:191b",
    "34.210.105.16"
  ],
  "login.tailscale.com": [
    "2a05:d014:386:203:f8b4:1d5a:f163:e187",
    "3.121.18.47"
  ]
}

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 99d67493be cmd/derper: update a link from godoc.org to pkg.go.dev
Save a redirect.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 3fd00c4a40 cmd/tailscaled: create /usr/local/bin on macOS install-system-daemon if needed
Fixes #1400

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Naman Sood 517c90d7e5
wgengine, cmd/tailscaled: refactor netstack, forward TCP to hello as demo (#1301)
Updates #707
Updates #504

Signed-off-by: Naman Sood <mail@nsood.in>
4 years ago
David Anderson ebf3f2fd9f cmd/tailscale/cli: add CLI option to offer an exit node to the tailnet.
Finishes up linux part of #1154.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick c64bd587ae net/portmapper: add NAT-PMP client, move port mapping service probing
* move probing out of netcheck into new net/portmapper package
* use PCP ANNOUNCE op codes for PCP discovery, rather than causing
  short-lived (sub-second) side effects with a 1-second-expiring map +
  delete.
* track when we heard things from the router so we can be less wasteful
  in querying the router's port mapping services in the future
* use portmapper from magicsock to map a public port

Fixes #1298
Fixes #1080
Fixes #1001
Updates #864

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Matt Layher 2c500cee23 go.mod: bump github.com/mdlayher/netlink, github.com/jsimonetti/rtnetlink
Signed-off-by: Matt Layher <mdlayher@gmail.com>
4 years ago
Brad Fitzpatrick 86d3a6c9a6 Switch to Go 1.16.
Fixes #1370

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 826f64e863 cmd/tailscale/cli: add netcheck dev knob TS_DEBUG_NETCHECK_UDP_BIND 4 years ago
Brad Fitzpatrick 7ad3af2141 cmd/tailscale/cli: remove outdated TODO
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Sonia Appasamy 76fb27bea7
dnsname,tailcfg: add hostname sanitation logic to node display names (#1304)
Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
4 years ago
Brad Fitzpatrick fd8e070d01 health, control/controlclient, wgengine: report when router unhealthy
Updates tailscale/corp#1338

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 38629b62fc cmd/tailscaled: on darwin, fail early if not root with nicer message
Don't do it on all platforms, as Linux folk might be playing
container + capability games.
4 years ago
Brad Fitzpatrick d3efe8caf6 safesocket, ipn/ipnserver: look up peer creds on Darwin
And open up socket permissions like Linux, now that we know who
connections are from.

This uses the new inet.af/peercred that supports Linux and Darwin at
the moment.

Fixes #1347
Fixes #1348

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick dec01ef22b safesocket: make ConnectDefault use paths pkg, fixing tailscaled-on-macOS
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 7e00100a0a cmd/hello: make whois client work on macOS against GUI client
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick fdac0387a7 ipn/ipnserver, ipn/ipnlocal: move whois handler to new localapi package 4 years ago
Brad Fitzpatrick d7569863b5 cmd/tailscaled: fix up install-system-daemon on darwin, add uninstall too
Tangentially related to #987, #177, #594, #925, #505
4 years ago
Brad Fitzpatrick 52e24aa966 net/{interfaces,ns}: add tailscaled-mode darwin routing looping prevention
Fixes #1331

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 29b028b9c4 cmd/tailscaled: add subcommand on darwin to install+start tailscaled under launchd
Tangentially related to #987, #177, #594, #925.
4 years ago
Brad Fitzpatrick 741d654aa3 derp/derphttp: add a context and infoLogger option to RunWatchConnectionLoop 4 years ago
Brad Fitzpatrick 6680976b50 cmd/tailscaled: pick automatic tun device name on darwin 4 years ago
Ross Zurowski 25321cbd01
cmd/hello: truncate long strings (#1328)
Signed-off-by: Ross Zurowski <ross@rosszurowski.com>
4 years ago
Brad Fitzpatrick 5378776043 cmd/hello: chop DNS name at first dot 4 years ago
Ross Zurowski 6075135e0a
cmd/hello: style welcome message (#1325)
Signed-off-by: Ross Zurowski <ross@rosszurowski.com>
4 years ago
Brad Fitzpatrick 34ffd4f7c6 cmd/hello: serve fake data in dev mode on whois failure 4 years ago
Brad Fitzpatrick de3001bc79 cmd/hello: in dev mode, live reload template 4 years ago
Brad Fitzpatrick 1e7a35b225 types/netmap: split controlclient.NetworkMap off into its own leaf package
Updates #1278

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick ddfcc4326c types/persist: split controlclient.Persist into a small leaf package
This one alone doesn't modify the global dependency map much
(depaware.txt if anything looks slightly worse), but it leave
controlclient as only containing NetworkMap:

bradfitz@tsdev:~/src/tailscale.com/ipn$ grep -F "controlclient." *.go
backend.go:     NetMap        *controlclient.NetworkMap // new netmap received
fake_test.go:   b.notify(Notify{NetMap: &controlclient.NetworkMap{}})
fake_test.go:   b.notify(Notify{NetMap: &controlclient.NetworkMap{}})
handle.go:      netmapCache       *controlclient.NetworkMap
handle.go:func (h *Handle) NetMap() *controlclient.NetworkMap {

Once that goes into a leaf package, then ipn doesn't depend on
controlclient at all, and then the client gets smaller.

Updates #1278
4 years ago
David Anderson a046b48593 cmd/tailscale/cli: display currently active exit node in `tailscale status`.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 6064b6ff47 wgengine/wgcfg/nmcfg: split control/controlclient/netmap.go into own package
It couldn't move to ipnlocal due to test dependency cycles.

Updates #1278

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson b9c2231fdf ipn: program exit node into the data plane according to user pref.
Part of #1153, #1154. Fixes #1224.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick fb6b0e247c cmd/tailscaled: rename Windows service to just Tailscale
Updates #1232
4 years ago
Brad Fitzpatrick a7562be5e1 cmd/tailscaled: move more of the Windows server setup code into tailscaled
Updates #1232
4 years ago
Brad Fitzpatrick 6f7974b7f2 cmd/tailscaled: add missing depaware.txt update 4 years ago
Brad Fitzpatrick 6099ecf7f4 cmd/tailscaled: run as a service on Windows
Updates #1232
4 years ago
Josh Bleecher Snyder aa6856a9eb wgengine: adapt to wireguard-go changes
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Brad Fitzpatrick d76334d2f0 ipn: split LocalBackend off into new ipn/ipnlocal package
And move a couple other types down into leafier packages.

Now cmd/tailscale doesn't bring in netlink, magicsock, wgengine, etc.

Fixes #1181

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 6254efb9ef cmd/tailscale{,d}: move debug subcommand to tailscaled
Work on reducing the size of the tailscale binary, which is
currently pulling in most of the same code as tailscaled.

Updates #1181
4 years ago
Brad Fitzpatrick 9a70789853 cmd/tailscale: fix IPN message reading stall in tailscale status -web
Fixes #1234
Updates #1254
4 years ago
Brad Fitzpatrick c7d4bf2333 cmd/tailscale/cli: recommend sudo for 'tailscale up' on failure
Fixes #1220
4 years ago
Brad Fitzpatrick 2889fabaef cmd/tailscaled/tailscaled.service: revert recent hardening for now
It broke Debian Stretch. We'll try again later.

Updates #1245

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 60e189f699 cmd/hello: use safesocket client to connect 4 years ago
Brad Fitzpatrick 006a224f50 ipn/ipnserver, cmd/hello: do whois over unix socket, not debug http
Start of a local HTTP API. Not a stable interface yet.
4 years ago
Josh Bleecher Snyder fe7c3e9c17 all: move wgcfg from wireguard-go
This is mostly code movement from the wireguard-go repo.

Most of the new wgcfg package corresponds to the wireguard-go wgcfg package.

wgengine/wgcfg/device{_test}.go was device/config{_test}.go.
There were substantive but simple changes to device_test.go to remove
internal package device references.

The API of device.Config (now wgcfg.DeviceConfig) grew an error return;
we previously logged the error and threw it away.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Brad Fitzpatrick 0bc73f8e4f cmd/hello: new hello.ipn.dev server
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson de497358b8 cmd/tailscaled: add /run to the allowed paths for iptables.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 692a011b54 net/interfaces: remove IsTailscaleIP, make callers use tsaddr.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick a7edcd0872 ipn/ipnstate: update tailscale status -web to match CLI 4 years ago
Sonia Appasamy 567c5a6d9e
tailcfg, controlclient: add DisplayName field to tailcfg.Node and populate it from controlclient (#1191)
Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
4 years ago
Brad Fitzpatrick 9ce92aad3e cmd/tailscaled: update depaware.txt 4 years ago
Brad Fitzpatrick eb47cba435 cmd/tailscaled: don't require --state for --cleanup 4 years ago
Josh Bleecher Snyder d5baeeed5c wgengine: use Tailscale-style peer identifiers in logs
Rewrite log lines on the fly, based on the set of known peers.

This enables us to use upstream wireguard-go logging,
but maintain the Tailscale-style peer public key identifiers
that the rest of our systems (and people) expect.

Fixes #1183

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Brad Fitzpatrick 4306433d1c cmd/tailscale: make "tailscale ping" also resolve names without DNS
This lets "tailscale ping $NAME" work even if MagicDNS is off, letting you
ping a name that shows up in "tailscale status".

More user friendly.
4 years ago
Brad Fitzpatrick 9541886856 wgengine/magicsock: disable regular STUNs for all platforms by default
Reduces background CPU & network.

Updates #1034

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
David Anderson ab9cccb292 cmd/tailscale/cli: require v4 and v6 default routes to be advertised together.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick a45665426b cmd/tailscale/cli: tweak the status name column a bit
* make peers without DNS names show their hostnames as always one column, for cut/etc users
* remove trailing dot from shared peers' DNS names
4 years ago
Josh Bleecher Snyder 654b5f1570 all: convert from []wgcfg.Endpoint to string
This eliminates a dependency on wgcfg.Endpoint,
as part of the effort to eliminate our wireguard-go fork.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
David Anderson 9abcb18061 wgengine/magicsock: import more of wireguard-go, update docstrings.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 22507adf54 wgengine/magicsock: stop depending on UpdateDst in legacy codepaths.
This makes connectivity between ancient and new tailscale nodes slightly
worse in some cases, but only in cases where the ancient version would
likely have failed to get connectivity anyway.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 85e54af0d7 wgengine: on TCP connect fail/timeout, log some clues about why it failed
So users can see why things aren't working.

A start. More diagnostics coming.

Updates #1094
4 years ago
Brad Fitzpatrick d6e9fb1df0 all: adjust Unix permissions for those without umasks
Fixes tailscale/corp#1165

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick f85769b1ed wgengine/magicsock: drop netaddr.IPPort cache
netaddr.IP no longer allocates, so don't need a cache or all its associated
code/complexity.

This totally removes groupcache/lru from the deps.

Also go mod tidy.
4 years ago
Brad Fitzpatrick a80446c026 Update depaware (removes lru from wgengine/filter) 4 years ago
Naman Sood f69e46175d
wengine/netstack: bump gvisor to latest version
* wengine/netstack: bump gvisor to latest version

Signed-off-by: Naman Sood <naman@tailscale.com>

* update dependencies

Signed-off-by: Naman Sood <naman@tailscale.com>

* Don't change hardcoded IP

Signed-off-by: Naman Sood <naman@tailscale.com>
4 years ago
Brad Fitzpatrick 5aa5db89d6 cmd/tailscaled, wgengine/netstack: add start of gvisor userspace netstack work
Not usefully functional yet (mostly a proof of concept), but getting
it submitted for some work @namansood is going to do atop this.

Updates #707
Updates #634
Updates #48
Updates #835
4 years ago
Brad Fitzpatrick 5efb0a8bca cmd/tailscale: change formatting of "tailscale status"
* show DNS name over hostname, removing domain's common MagicDNS suffix.
  only show hostname if there's no DNS name.
  but still show shared devices' MagicDNS FQDN.

* remove nerdy low-level details by default: endpoints, DERP relay,
  public key.  They're available in JSON mode still for those who need
  them.

* only show endpoint or DERP relay when it's active with the goal of
  making debugging easier. (so it's easier for users to understand
  what's happening) The asterisks are gone.

* remove Tx/Rx numbers by default for idle peers; only show them when
  there's traffic.

* include peers' owner login names

* add CLI option to not show peers (matching --self=true, --peers= also
  defaults to true)

* sort by DNS/host name, not public key

* reorder columns
4 years ago
Josh Bleecher Snyder 1271e135cd wgengine/tstun: initialize wireguard-go TUN parameters
This will enable us to remove the corresponding code from
our fork of wireguard-go.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Frederik “Freso” S. Olesen 83fccf9fe5 tailscaled.service: Lock down clock and /dev (#1071)
Research in issue #1063 uncovered why tailscaled would fail with
ProtectClock enabled (it implicitly enabled DevicePolicy=closed).

This knowledge in turn also opens the door for locking down /dev
further, e.g. explicitly setting DevicePolicy=strict (instead of
closed), and making /dev private for the unit.

Additional possible future (or downstream) lockdown that can be done
is setting `PrivateDevices=true` (with `BindPaths=/dev/net/`), however,
systemd 233 or later is required for this, and tailscaled currently need
to work for systemd down to version 215.

Closes https://github.com/tailscale/tailscale/issues/1063

Signed-off-by: Frederik “Freso” S. Olesen <freso.dk@gmail.com>
4 years ago
Josh Bleecher Snyder 56a7652dc9 wgkey: new package
This is a replacement for the key-related parts
of the wireguard-go wgcfg package.

This is almost a straight copy/paste from the wgcfg package.
I have slightly changed some of the exported functions and types
to avoid stutter, added and tweaked some comments,
and removed some now-unused code.

To avoid having wireguard-go depend on this new package,
wgcfg will keep its key types.

We translate into and out of those types at the last minute.
These few remaining uses will be eliminated alongside
the rest of the wgcfg package.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Josh Bleecher Snyder 2fe770ed72 all: replace wgcfg.IP and wgcfg.CIDR with netaddr types
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Charlotte Brandhorst-Satzkorn ff2b3d02e6
Fix typo in cmd/tailscale/cli/cli.go (#1069)
Remove duplicate 'to connect' in error message.

Fixes #1068

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@catzkorn.dev>
4 years ago
Frederik “Freso” S. Olesen a9a80ab372
tailscaled.service: Harden systemd unit somewhat (#1062)
While not a full capability lockdown of the systemd unit, this still
improves sandboxing and security of the running process a good deal.

Signed-off-by: Frederik “Freso” S. Olesen <freso.dk@gmail.com>
4 years ago
Matt Layher 1a42cef3a2 cmd/tailscale*: make updatedeps
Signed-off-by: Matt Layher <mdlayher@gmail.com>
4 years ago
Brad Fitzpatrick d0baece5fa go.mod: bump inet.af/netaddr to non-allocating version 4 years ago
Brad Fitzpatrick 15c064f76f wgengine/router/dns: remove unsafe endianness detection on Linux 4 years ago
Brad Fitzpatrick 57dd247376 cmd/tailscaled, logpolicy, logtail: support log levels
Log levels can now be specified with "[v1] " or "[v2] " substrings
that are then stripped and filtered at the final logger. This follows
our existing "[unexpected]" etc convention and doesn't require a
wholesale reworking of our logging at the moment.

cmd/tailscaled then gets a new --verbose=N flag to take a log level
that controls what gets logged to stderr (and thus systemd, syslog,
etc). Logtail is unaffected by --verbose.

This commit doesn't add annotations to any existing log prints. That
is in the next commit.

Updates #924
Updates #282

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Christine Dodrill 2485faf69a
Merge branch 'main' into report-status-systemd 4 years ago
Christine Dodrill 7ea809897d ipn/ipnserver: enable systemd-notify support
Addresses #964

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

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

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

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

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

util/systemd: fix package name

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

util/systemd: fix review feedback from @mdlayher

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

cmd/tailscale{,d}: update depaware manifests

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

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

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

control/controlclient: minor review feedback fixes

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

{control,ipn,systemd}: fix review feedback

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

review feedback fixes

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

ipn: fix sprintf call

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

ipn: make staticcheck less sad

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

ipn: print IP address in connected status

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

ipn: review feedback

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

final fixups

Signed-off-by: Christine Dodrill <me@christine.website>
4 years ago
Josh Bleecher Snyder 34a0292433 depaware.txt: update
Upgrading staticcheck upgraded golang.org/x/sync
(one downside of mixing our tools in with our regular go.mod),
which introduced a new dependency via
https://go-review.googlesource.com/c/sync/+/251677

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

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Aleksandar Pesic 4749a96a5b Update depaware.txt files.
Signed-off-by: Aleksandar Pesic <peske.nis@gmail.com>
4 years ago
Brad Fitzpatrick bce865b61b logpolicy: migrate from x/crypto/ssh/terminal to x/term 4 years ago
Brad Fitzpatrick c0af7deb86 tailcfg, cmd/tailscale: add Hostinfo.ShareeNode, hide in "tailscale status" 4 years ago
Josh Bleecher Snyder aa9d7f4665 tstime: add Parse3339B, for byte slices
Use go4.org/mem for memory safety.
A slight performance hit, but a huge performance win
for clients who start with a []byte.
The perf hit is due largely to the MapHash call, which adds ~25ns.
That is necessary to keep the fast path allocation-free.

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

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

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


Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Brad Fitzpatrick 8f76548fd9 tempfork/osexec: remove old fork of os/exec
This package was a temporary fork of os/exec to fix an EINTR loop
bug that was fixed upstream for Go 1.15 in
8c1db77a92
(https://go-review.googlesource.com/c/go/+/232862), in
src/os/exec_unix.go:

8c1db77a92 (diff-72072cbd53a7240debad8aa506ff7ec795f9cfac7322e779f9bac29a4d0d0bd4)
4 years ago
Brad Fitzpatrick 51c8fd1dfc logpolicy: add -race suffix to Go version when race detector in use 4 years ago
Brad Fitzpatrick 7a01cd27ca net/netstat: remove some unsafe
Just removing any unnecessary unsafe while auditing unsafe usage for #921.
4 years ago
Brad Fitzpatrick 45d96788b5 net/netns: remove use of unsafe on Windows
Found while auditing unsafe for #921 via the list at:

https://github.com/tailscale/tailscale/issues/921#issuecomment-727365383

No need for unsafe here, so remove it.
4 years ago
Brad Fitzpatrick a2d78b4d3e net/dnscache, control/controlclient: use DNS cache when dialing control
Cache DNS results of earlier login.tailscale.com control dials, and use
them for future dials if DNS is slow or broken.

Fixes various issues with trickier setups with the domain's DNS server
behind a subnet router.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 97e82c6cc0 net/netcheck: remove unused DNSCache from netcheck
It's easy to add back later if/when the TODO is implemented.
4 years ago
Avery Pennarun f99f6608ff Reverse earlier "allow tag without 'tag:' prefix" changes.
These accidentally make the tag syntax more flexible than was intended,
which will create forward compatibility problems later. Let's go back
to the old stricter parser.

Revert "cmd/tailscale/cli: fix double tag: prefix in tailscale up"
Revert "cmd/tailscale/cli, tailcfg: allow tag without "tag:" prefix in 'tailscale up'"

This reverts commit a702921620.
This reverts commit cd07437ade.

Affects #861.

Signed-off-by: Avery Pennarun <apenwarr@tailscale.com>
4 years ago
David Anderson 7988f75b87 tailscaled.service: also cleanup prior to starting.
Fixes #813.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson 427bf2134f net/packet: rename from wgengine/packet.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
David Anderson ebd96bf4a9 wgengine/router/dns: use OpenKeyWait to set DNS configuration.
Fixes tailscale/corp#839.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 696e160cfc cmd/tailscale/cli: fix double tag: prefix in tailscale up
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 01ee638cca Change some os.IsNotExist to errors.Is(err, os.ErrNotExist) for non-os errors.
os.IsNotExist doesn't unwrap errors. errors.Is does.

The ioutil.ReadFile ones happened to be fine but I changed them so
we're consistent with the rule: if the error comes from os, you can
use os.IsNotExist, but from any other package, use errors.Is.
(errors.Is always would also work, but not worth updating all the code)

The motivation here was that we were logging about failure to migrate
legacy relay node prefs file on startup, even though the code tried
to avoid that.

See golang/go#41122
4 years ago
Brad Fitzpatrick 7e1a146e6c cmd/tailscaled: update depaware.txt 4 years ago
David Anderson 54e6c3a290 version: use OSS repo's version when building.
When building with redo, also include the git commit hash
from the proprietary repo, so that we have a precise commit
that identifies all build info (including Go toolchain version).

Add a top-level build script demonstrating to downstream distros
how to burn the right information into builds.

Adjust `tailscale version` to print commit hashes when available.

Fixes #841.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick cd07437ade cmd/tailscale/cli, tailcfg: allow tag without "tag:" prefix in 'tailscale up'
Fixes #861
4 years ago
Brad Fitzpatrick 7c8ca28c74 ipn: use cmd/cloner for Prefs.Clone
Also, make cmd/cloner's top-level "func Clone" generation opt-in.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 86c271caba types/logger: move RusagePrefixLog to logger package, disable by default
The RusagePrefixLog is rarely useful, hasn't been useful in a long
time, is rarely the measurement we need, and is pretty spammy (and
syscall-heavy). Disable it by default. We can enable it when we're
debugging memory.
4 years ago
Alex Brainman f2ce64f0c6 wgengine/router: unfork winipcfg-go package, use upstream
Use golang.zx2c4.com/wireguard/windows/tunnel/winipcfg
instead of github.com/tailscale/winipcfg-go package.

Updates #760

Signed-off-by: Alex Brainman <alex.brainman@gmail.com>
4 years ago
Brad Fitzpatrick 515866d7c6 ipn, ipnserver, cmd/tailscale: add "server mode" support on Windows
This partially (but not yet fully) migrates Windows to tailscaled's
StateStore storage system.

This adds a new bool Pref, ForceDaemon, defined as:

// ForceDaemon specifies whether a platform that normally
// operates in "client mode" (that is, requires an active user
// logged in with the GUI app running) should keep running after the
// GUI ends and/or the user logs out.
//
// The only current applicable platform is Windows. This
// forced Windows to go into "server mode" where Tailscale is
// running even with no users logged in. This might also be
// used for macOS in the future. This setting has no effect
// for Linux/etc, which always operate in daemon mode.

Then, when ForceDaemon becomes true, we now write use the StateStore
to track which user started it in server mode, and store their prefs
under that key.

The ipnserver validates the connections/identities and informs that
LocalBackend which userid is currently in charge.

The GUI can then enable/disable server mode at runtime, without using
the CLI.

But the "tailscale up" CLI was also fixed, so Windows users can use
authkeys or ACL tags, etc.

Updates #275
4 years ago
Josh Bleecher Snyder a5103a4cae all: upgrade to latest version of depaware 4 years ago
Josh Bleecher Snyder 38dda1ea9e all: update depaware.txt
Broken by 8051ecff55.


Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Brad Fitzpatrick 90b7293b3b ipn: add/move some constants, update a comment
And make the StateStore implementations be Stringers, for error messages.
4 years ago
Brad Fitzpatrick 8b94a769be cmd/tailscaled: use the standard flag page instead of getopt
Per discussion with @crawshaw. The CLI tool already used std flag anyway.
If either of them, it would've made more sense for the CLI to use getopt.
4 years ago
Josh Bleecher Snyder 6e8328cba5 wgengine/tsdns: replace connections when net link changes (macOS)
When the network link changes, existing UDP sockets fail immediately
and permanently on macOS.

The forwarder set up a single UDP conn and never changed it.
As a result, any time there was a network link change,
all forwarded DNS queries failed.

To fix this, create a new connection when send requests
fail because of network unreachability.

This change is darwin-only, although extended it to other platforms
should be straightforward.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Brad Fitzpatrick 3528d28ed1 wgengine/router: move Tailscale's winipcfg additions into wgengine/router
Part of unforking our winipcfg-go and using upstream (#760), move our
additions into our repo. (We might upstream them later if upstream has
interest)

Originally these were:

@apenwarr: "Add ifc.SyncAddresses() and SyncRoutes()."
609dcf2df5

@bradfitz: "winipcfg: make Interface.AddRoutes do as much as possible, return combined error"
e9f93d53f3

@bradfitz: "prevent unnecessary Interface.SyncAddresses work; normalize IPNets in deltaNets"
decb9ee8e1
4 years ago
Brad Fitzpatrick 3bdcfa7193 ipn: remove DisableDERP pref
We depend on DERP for NAT traversal now[0] so disabling it entirely can't
work.

What we'll do instead in the future is let people specify
alternate/additional DERP servers. And perhaps in the future we could
also add a pref for nodes to say when they expect to never need/want
to use DERP for data (but allow it for NAT traversal communication).

But this isn't the right pref and it doesn't work, so delete it.

Fixes #318

[0] https://tailscale.com/blog/how-nat-traversal-works/
4 years ago
Christina Wen f0e9dcdc0a
wgengine/router: restore /etc/resolv.conf after tailscale down is called
This change is to restore /etc/resolv.conf after tailscale down is called. This is done by setting the dns.Manager before errors occur. Error collection is also added.

Fixes #723
4 years ago
Josh Bleecher Snyder 7f97cf654d cmd/microproxy: add -insecure flag
This makes it easier to run microproxy locally during development.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Josh Bleecher Snyder 3fa863e6d9 cmd/derper: add missing html.EscapeString calls in /debug page
Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Brad Fitzpatrick 931bcd44cb control/controlclient: report Synology "distro" + its version to control 4 years ago
David Anderson 8f5b52e571 net/netns: add windows support.
Also remove rebinding logic from the windows router. Magicsock will
instead rebind based on link change signals.

Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 4f7751e025 Update depaware for previous ipnserver change. 4 years ago
Brad Fitzpatrick a084c44afc wgengine, wgengine/router, cmd/tailscale: force netfilter mode off on Synology
For now. Get it working again so it's not stuck on 0.98.

Subnet relay can come later.

Updates #451

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 8b60936913 depaware: update deps 4 years ago
Brad Fitzpatrick 22ed3c503e
Add depaware.txt files and GitHub checks. (#745)
See https://github.com/tailscale/depaware

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Josh Bleecher Snyder 7bd89359c9 cmd/cloner: generate a package-level Clone function
This Clone function knows how to clone any types
for which it has generated Clone methods.
This allows callers to efficiently clone
an inbound interface{} that might contain one of these types.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Josh Bleecher Snyder 99d223130c cmd/cloner: fix found type detection
This was causing any type to be reported as found,
as long as there were any type decls at all. Oops.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Josh Bleecher Snyder 2352690bde cmd/cloner: ensure cloner gets re-run when structs change
If you change a struct and don't re-run cloner,
your Cloner method might be inaccurate, leading to bad things.

To prevent this, write out the struct as it is at the moment that
cloner is caller, and attempt a conversion from that type.
If the struct gets changed in any way, this conversion will fail.

This will yield false positives: If you change a non-pointer field,
you will be forced to re-run cloner, even though the actual generated
code won't change. I think this is an acceptable cost: It is a minor
annoyance, which will prevent real bugs.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Brad Fitzpatrick 468bb3afce cmd/tailscale/cli: add debug -derp mode 4 years ago
Brad Fitzpatrick 1e0be5a458 tshttp, derphttp: send Proxy-Authorization, not Authorization, to proxies
Whoops. But weirdly, sending Authorization sometimes worked?
4 years ago
halulu 3af2d671e6
cmd/tailscale/cli: add new flag --force-reauth to up subcommand (#717)
Signed-off-by: Halulu <lzjluzijie@gmail.com>
4 years ago
halulu bd37e40d2b
cmd/tailscale/cli: status exit when disconnected (#720)
cmd/tailscale/cli: make status report stopped status, exit non-zero

Fixes #714
4 years ago
Brad Fitzpatrick 483141094c cmd/tailscale/cli: add basic 'down' subcommand
RELNOTE=yes
4 years ago
halulu f27a57911b
cmd/tailscale: add derp and endpoints status (#703)
cmd/tailscale: add local node's information to status output (by default)

RELNOTE=yes

Updates #477

Signed-off-by: Halulu <lzjluzijie@gmail.com>
4 years ago
Brad Fitzpatrick f915ab6552 net/tshttpproxy: add start of Kerberos Negotiate auth to proxies on Windows
For now only used by a new cmd/tailscale debug --get-url
subcommand. Not yet wired up to the places making HTTP requests.

Updates tailscale/corp#583
4 years ago
Brad Fitzpatrick 5e0375808b cmd/tailscale/cli: fix vet warning
And add vet to the "make check" target, like the CI has.
4 years ago
Brad Fitzpatrick 1be6c6dd70 cmd/tailscale/cli: add hidden debug subcommand 4 years ago
Brad Fitzpatrick e415991256 derp, derp/derphttp: remove one RTT from DERP setup
* advertise server's DERP public key following its ServerHello
* have client look for that DEPR public key in the response
  PeerCertificates
* let client advertise it's going into a "fast start" mode
  if it finds it
* modify server to support that fast start mode, just not
  sending the HTTP response header

Cuts down another round trip, bringing the latency of being able to
write our first DERP frame from SF to Bangalore from ~725ms
(3 RTT) to ~481ms (2 RTT: TCP and TLS).

Fixes #693

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 771e9541c7 cmd/tailscale/cli: appease staticcheck 4 years ago
Brad Fitzpatrick adf4f3cce0 cmd/tailscale/cli: make netcheck sort regions, show full region names 4 years ago
David Anderson c2b63ba363 cmd/microproxy: add a quick hack for some malformed variables.
Signed-off-by: David Anderson <danderson@tailscale.com>
4 years ago
Brad Fitzpatrick 4e63a4fda3 cmd/tailscale/cli: remove already done TODO 4 years ago
Brad Fitzpatrick 84dc891843 cmd/tailscale/cli: add ping subcommand
For example:

$ tailscale ping -h
USAGE
  ping <hostname-or-IP>

FLAGS
  -c 10                   max number of pings to send
  -stop-once-direct true  stop once a direct path is established
  -verbose false          verbose output

$ tailscale ping mon.ts.tailscale.com
pong from monitoring (100.88.178.64) via DERP(sfo) in 65ms
pong from monitoring (100.88.178.64) via DERP(sfo) in 252ms
pong from monitoring (100.88.178.64) via [2604:a880:2:d1::36:d001]:41641 in 33ms

Fixes #661

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago
Brad Fitzpatrick 87cbc067c2 cmd/tailscale/cli: validate advertised routes' IP address-vs-network bits
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago