Commit Graph

115 Commits (3f27087e9d139e4d69ca9435fa333702de802bf2)

Author SHA1 Message Date
Maisem Ali b797f773c7 ipn/ipnlocal: add support for funnel in tsnet
Previously the part that handled Funnel connections was not
aware of any listeners that tsnet.Servers might have had open
so it would check against the ServeConfig and fail.

Adding a ServeConfig for a TCP proxy was also not suitable in this
scenario as that would mean creating two different listeners and have
one forward to the other, which really meant that you could not have
funnel and tailnet-only listeners on the same port.

This also introduces the ipn.FunnelConn as a way for users to identify
whether the call is coming over funnel or not. Currently it only holds
the underlying conn and the target as presented in the "Tailscale-Ingress-Target"
header.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali b0cb39cda1 tsnet: only intercept TCP flows that have listeners
Previously, it would accept all TCP connections and then close the ones
it did not care about. Make it only ever accept the connections that it
cares about.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
David Crawshaw 9245d813c6 tsnet: explicit message for panic seen in CI
Updates #7488

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
Denton Gentry b46c5ae82a cmd/sniproxy: draw the rest of the DNS owl.
Add a DNS server which always responds as its own IP addresses.

Additionally add a tsnet TailscaleIPs() function to return the
IP addresses, both IPv4 and IPv6.

Updates https://github.com/tailscale/tailscale/issues/1748

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2 years ago
David Crawshaw 387b68fe11 tsnet: generalize loopback listener to include SOCKS5
Some languages do not give you any useful access to the sockets
underlying their networking packages. E.g. java.net.http.HttpClient
provides no official access to its dialing logic.

...but everyone supports proxies. So add a SOCKS5 proxy on the listener
we are already running.

(The function being revamped is very new,
I only added it in the last week and it wasn't part of any release,
so I believe it is fine to redo its function signature.)

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
Brad Fitzpatrick 0f4359116e tsnet: add UDP support to Server.Listen
No ListenPacket support yet, but Listen with a udp network type fit
easier into netstack's model to start.

Then added an example of using it to cmd/sniproxy with a little udp
:53 handler.

No tests in tsnet yet because we don't have support for dialing over
UDP in tsnet yet. When that's done, a new test can test both sides.

Updates #5871
Updates #1748

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 9ff51ca17f wgengine/netstack: add support for custom UDP flow handlers
To be used by tsnet and sniproxy later.

Updates #5871
Updates #1748

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
David Crawshaw d41f6a8752 tsnet: do not error on NeedsMachineAuth for Up
It turns out even with an AuthKey that pre-approves devices on a tailnet
with machine auth turned on, we still temporarily see the
NeedsMachineAuth state. So remove that error (for now).

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
David Crawshaw 768df4ff7a tsnet: add a LocalAPI listener on loopback, with basic auth
This is for use by LocalAPI clients written in other languages that
don't appear to be able to talk HTTP over a socket (e.g.
java.net.http.HttpClient).

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
David Crawshaw 44e027abca tsnet: add data transfer test
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
David Crawshaw daa2f1c66e tsnet: add Up method to block until ready
Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
2 years ago
Maisem Ali 04b57a371e ipn/ipnlocal: drop not required StateKey parameter
This is #cleanup now that #7121 is merged.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 5bba65e978 net/memnet: rename from net/nettest
This is just #cleanup to resolve a TODO

Also add a package doc.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Will Norris 71029cea2d all: update copyright and license headers
This updates all source files to use a new standard header for copyright
and license declaration.  Notably, copyright no longer includes a date,
and we now use the standard SPDX-License-Identifier header.

This commit was done almost entirely mechanically with perl, and then
some minimal manual fixes.

Updates #6865

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Claire Wang a45c9f982a wgengine/netstack: change netstack API to require LocalBackend
The macOS client was forgetting to call netstack.Impl.SetLocalBackend.
Change the API so that it can't be started without one, eliminating this
class of bug. Then update all the callers.

Updates #6764

Change-Id: I2b3a4f31fdfd9fdbbbbfe25a42db0c505373562f
Signed-off-by: Claire Wang <claire@tailscale.com>
Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Jordan Whited ea5ee6f87c
all: update golang.zx2c4.com/wireguard to github.com/tailscale/wireguard-go (#6692)
This is temporary while we work to upstream performance work in
https://github.com/WireGuard/wireguard-go/pull/64. A replace directive
is less ideal as it breaks dependent code without duplication of the
directive.

Signed-off-by: Jordan Whited <jordan@tailscale.com>
2 years ago
Xe Iaso d1a5757639
tsnet: add HTTP client method to tsnet.Server (#6669)
This allows tsnet services to make requests to other services in the
tailnet with the tsnet service identity instead of the identity of the
host machine. This also enables tsnet services to make requests to other
tailnet services without having to have the host machine join the
tailnet.

Signed-off-by: Xe Iaso <xe@tailscale.com>

Signed-off-by: Xe Iaso <xe@tailscale.com>
2 years ago
Maisem Ali 992749c44c tsnet/example/tshello: use the correct LocalClient for certs
Fixes #6485

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Brad Fitzpatrick 1950e56478 tsnet: add Server.ControlURL option
As requested in #6250 from @majst01.

Change-Id: Ia4bc5c4ebc98cd67d07328a1a42b87574261ddde
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick cbc89830c4 tsnet: be stricter about arguments to Server.Listen
Fixes #6201

Change-Id: I14b2b8ce9bee838344a3fad4f305c78ab775f72e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Maisem Ali 4d330bac14 ipn/ipnlocal: add support for multiple user profiles
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Xe Iaso be7556aece
tsnet/example/tshello: use strings.Cut (#6198)
strings.Cut allows us to be more precise here. This example was written
before strings.Cut existed.

Signed-off-by: Xe <xe@tailscale.com>

Signed-off-by: Xe <xe@tailscale.com>
2 years ago
Brad Fitzpatrick 910db02652 client/tailscale, tsnet, ipn/ipnlocal: prove nodekey ownership over noise
Fixes #5972

Change-Id: Ic33a93d3613ac5dbf172d6a8a459ca06a7f9e547
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Maisem Ali 630bcb5b67 tsnet,client/tailscale: add APIClient which runs API over Noise.
Updates tailscale/corp#4383

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Xe Iaso 86c5bddce2
tsnet/examples/tshello: update example for LocalClient method (#5966)
Before this would silently fail if this program was running on a machine
that was not already running Tailscale. This patch changes the WhoIs
call to use the tsnet.Server LocalClient instead of the global tailscale
LocalClient.

Signed-off-by: Xe <xe@tailscale.com>

Signed-off-by: Xe <xe@tailscale.com>
2 years ago
Emmanuel T Odeke 680f8d9793 all: fix more resource leaks found by staticmajor
Updates #5706

Signed-off-by: Emmanuel T Odeke <emmanuel@orijtech.com>
2 years ago
Maisem Ali 4102a687e3 tsnet: fix netstack leak on Close
Identified while investigating a goroutine leak in a different repo.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Mihai Parparita 8343b243e7 all: consistently initialize Logf when creating tsdial.Dialers
Most visible when using tsnet.Server, but could have resulted in dropped
messages in a few other places too.

Fixes #5743

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Eng Zer Jun f0347e841f refactor: move from io/ioutil to io and os packages
The io/ioutil package has been deprecated as of Go 1.16 [1]. This commit
replaces the existing io/ioutil functions with their new definitions in
io and os packages.

Reference: https://golang.org/doc/go1.16#ioutil
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
2 years ago
Will Norris 3344c3b89b tsnet: add Server method to listener
Allow callers to verify that a net.Listener is a tsnet.listener by type
asserting against this Server method, as well as providing access to the
underlying Server.

This is initially being added to support the caddy integration in
caddyserver/caddy#5002.

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Joe Tsai b1fff4499f
tsnet: cleanup resources upon start failure (#5301)
In a partially initialized state, we should cleanup
all prior resources when an error occurs.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Joe Tsai ddebd30917
tsnet: fix closing of filch buffer (#5299)
It should be safe to initialize multiple Server instances
without any resource leaks what-so-ever.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Maisem Ali be5eadbecc tsnet: log out ephemeral nodes on Close()
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Brad Fitzpatrick a12aad6b47 all: convert more code to use net/netip directly
perl -i -npe 's,netaddr.IPPrefixFrom,netip.PrefixFrom,' $(git grep -l -F netaddr.)
    perl -i -npe 's,netaddr.IPPortFrom,netip.AddrPortFrom,' $(git grep -l -F netaddr. )
    perl -i -npe 's,netaddr.IPPrefix,netip.Prefix,g' $(git grep -l -F netaddr. )
    perl -i -npe 's,netaddr.IPPort,netip.AddrPort,g' $(git grep -l -F netaddr. )
    perl -i -npe 's,netaddr.IP\b,netip.Addr,g' $(git grep -l -F netaddr. )
    perl -i -npe 's,netaddr.IPv6Raw\b,netip.AddrFrom16,g' $(git grep -l -F netaddr. )
    goimports -w .

Then delete some stuff from the net/netaddr shim package which is no
longer neeed.

Updates #5162

Change-Id: Ia7a86893fe21c7e3ee1ec823e8aba288d4566cd8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 7eaf5e509f net/netaddr: start migrating to net/netip via new netaddr adapter package
Updates #5162

Change-Id: Id7bdec303b25471f69d542f8ce43805328d56c12
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 3ac8ab1791 tsnet: add Server.AuthKey field
... so callers can provide the AuthKey via mechanisms other than
environment variables which means multiple Servers can't be started
concurrently in the same process without coordination.

Change-Id: I7736ef4f59b7cc29637939e140e990613ce58e0d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Joe Tsai 0f05b2c13f
tsnet: use tailscaled as prefix for state file names (#4816)
Use the "tailscaled" prefix instead of "tsnet" for state file names:
1. It is consistent with the pre-existing {{Dir}}/tailscaled.state file.
2. It makes the file layout of `tsnet` and `tailscaled` identical,
   so that they are compatible with each other.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Will Norris 09363064b5
tsnet: use proper log ID
refactor logpolicy config loading to make it easier to reuse from
outside the package.  Within tsnet, setup a basic logtail config.

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Tom DNetto 7f45734663 assorted: documentation and readability fixes
This were intended to be pushed to #4408, but in my excitement I
forgot to git push :/ better late than never.

Signed-off-by: Tom DNetto <tom@tailscale.com>
3 years ago
Tom DNetto 9e77660931 net/tstun,wgengine/{.,netstack}: handle UDP magicDNS traffic in netstack
This change wires netstack with a hook for traffic coming from the host
into the tun, allowing interception and handling of traffic to quad-100.

With this hook wired, magicDNS queries over UDP are now handled within
netstack. The existing logic in wgengine to handle magicDNS remains for now,
but its hook operates after the netstack hook so the netstack implementation
takes precedence. This is done in case we need to support platforms with
netstack longer than expected.

Signed-off-by: Tom DNetto <tom@tailscale.com>
3 years ago
Brad Fitzpatrick 87ba528ae0 client/tailscale: move/copy all package funcs to new LocalClient type
Remove all global variables, and clean up tsnet and cmd/tailscale's usage.

This is in prep for using this package for the web API too (it has the
best package name).

RELNOTE=tailscale.com/client/tailscale package refactored w/ LocalClient type

Change-Id: Iba9f162fff0c520a09d1d4bd8862f5c5acc9d7cd
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Maisem Ali 5a1ef1bbb9 net/tsdial: add SystemDial as a wrapper on netns.Dial
The connections returned from SystemDial are automatically closed when
there is a major link change.

Also plumb through the dialer to the noise client so that connections
are auto-reset when moving from cellular to WiFi etc.

Updates #3363

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Maisem Ali bbca2c78cb tsnet: fix mem.Store check for normal nodes
There was a typo in the check it was doing `!ok` instead of `ok`, this
restructures it a bit to read better.

Fixes #4506

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick a0e345dba4 tsnet: set Hostinfo.Package to "tsnet" on use
Fixes #4256

Change-Id: I11276596c3724bead1e0aa1f2e57ba75cef3b6be
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Josh Bleecher Snyder 77b4fe0afa all: remove "no 1.18 support" failures
We have worked around the issue in DERP,
so the vanilla Go 1.18 toolchain now works.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Brad Fitzpatrick 8144c6d87d tsnet: fail with nice message with go1.18 on darwin
Like we did in ead16b24ec for tailscaled.

Updates #4258
Due to golang/go#51759

Change-Id: I6effcea7c5f2ec264b9711f4c316f8fca09490f1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick bfb4a4d9e9 tsnet: fix format string/argument mismatch in log output
Change-Id: Ia7291ea47a289baec6cc6013d63d2f248ae57d9e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 2708544018 tsnet: add some usability polish, remove WIP env var restriction
Change-Id: Id9ec1713c65cdd597d20b03e21e11cd60b54bb6a
Signed-off-by: Brad Fitzpatrick <bradfitz@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
Maisem Ali 38c59c0ad2 tsnet: fix typo in Ephemeral
Signed-off-by: Maisem Ali <maisem@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 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
Maisem Ali dd45bba76b tsnet: add Start method to allow connecting to the tailnet without
requiring a call to Dial/Listen.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Maisem Ali 44937b59e7 tsnet: add Dial method to allow dialing out to the tailnet.
Signed-off-by: Maisem Ali <maisem@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 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 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
Michael Stapelberg b3abdc381d tsnet: set varRoot state directory field
This makes tsnet work on https://gokrazy.org! 🎉

Signed-off-by: Michael Stapelberg <michael@stapelberg.de>
3 years ago
Brad Fitzpatrick 5dc5bd8d20 cmd/tailscaled, wgengine/netstack: always wire up netstack
Even if not in use. We plan to use it for more stuff later.

(not for iOS or macOS-GUIs yet; only tailscaled)

Change-Id: Idaef719d2a009be6a39f158fd8f57f8cca68e0ee
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Maisem Ali c121fa81c4 tsnet: add TLS and LetsEncrypt example.
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Maisem Ali 52be1c0c78 tsnet: run the LocalAPI handler
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick fb8b821710 tsnet: fix typo in comment
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Denton Gentry 0796c53404 tsnet: add AuthKey support.
Set a TS_AUTHKEY environment variable to "tskey-01234..."

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

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

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

And regexps:

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

And lots of manual fixups.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
4 years ago
Brad Fitzpatrick 5b52b64094 tsnet: add Tailscale-as-a-library package
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
4 years ago