Commit Graph

401 Commits (eaf8aa63fcd02db66e9eda9edb442eb273d0619f)

Author SHA1 Message Date
Maisem Ali 05adf22383 cmd/k8s-operator: add support for running an auth proxy
Updates #5055

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Brad Fitzpatrick 03645f0c27 net/{netns,netstat}: use new x/sys/cpu.IsBigEndian
See golang/go#57237

Change-Id: If47ab6de7c1610998a5808e945c4177c561eab45
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick b1248442c3 all: update to Go 1.20, use strings.CutPrefix/Suffix instead of our fork
Updates #7123
Updates #5309

Change-Id: I90bcd87a2fb85a91834a0dd4be6e03db08438672
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 0d794a10ff go.mod: bump wintun-go
For https://git.zx2c4.com/wintun-go/commit/?id=0fa3db229ce2036ae779de8ba03d336b7aa826bd

Updates #6647

Change-Id: I1686b2c77df331fcb9fa4fae88e08232bb95f10b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 6793685bba go.mod: bump AWS SDK past a breaking API change of theirs
They changed a type in their SDK which meant others using the AWS APIs
in their Go programs (with newer AWS modules in their caller go.mod)
and then depending on Tailscale (for e.g. tsnet) then couldn't compile
ipn/store/awsstore.

Thanks to @thisisaaronland for bringing this up.

Fixes #7019

Change-Id: I8d2919183dabd6045a96120bb52940a9bb27193b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Will Norris fff617c988 go.mod: bump golang.org/x/net and dependencies
I don't think CVE-2022-41717 necessarily impacts us (maybe as part of
funnel?), but it came up in a recent security scan so worth updating
anyway.

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Brad Fitzpatrick 1116602d4c ssh/tailssh: add OpenBSD support for Tailscale SSH
And bump go.mod for https://github.com/u-root/u-root/pull/2593

Change-Id: I36ec94c5b2b76d671cb739f1e9a1a43ca1d9d1b1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
andig 14e8afe444 go.mod, etc: bump gvisor
Fixes #6554

Change-Id: Ia04ae37a47b67fa57091c9bfe1d45a1842589aa8
Signed-off-by: andig <cpuidle@gmx.de>
2 years ago
Brad Fitzpatrick 243490f932 go.mod: bump x/sys for linux/arm64 cpu SIGILL fix
Bump to get 2204b6615f

Updates #5793

Change-Id: I6ab78824047cb2c8d042f3f3bf47368ec6da5a34
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
David Anderson e5fe205c31 cmd/sync-containers: program to sync tags between container registries.
Updates tailscale/corp#8461

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
Jordan Whited 914d115f65
go.mod: bump tailscale/wireguard-go for big-endian fix (#6785)
Signed-off-by: Jordan Whited <jordan@tailscale.com>
2 years ago
Brad Fitzpatrick c02ccf6424 go.mod: bump dhcp dep to remove another endian package from our tree
To pull in insomniacslk/dhcp#484 to pull in u-root/uio#8

Updates golang/go#57237

Change-Id: I1e56656e0dc9ec0b870f799fe3bc18b3caac1ee4
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
David Anderson 3a5fc233aa cmd/k8s-operator: use oauth credentials for API access.
This automates both the operator's initial login, and
provisioning/deprovisioning of proxies.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson d857fd00b3 cmd/k8s-operator: sprinkle debug logging throughout.
As is convention in the k8s world, use zap for structured logging. For
development, OPERATOR_LOGGING=dev switches to a more human-readable output
than JSON.

Updates #502

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
David Anderson bc8f5a7734 cmd/k8s-operator: add a basic unit test.
The test verifies one of the successful reconcile paths, where
a client requests an exposed service via a LoadBalancer class.

Updates #502.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
Brad Fitzpatrick ca08e316af util/endian: delete package; use updated josharian/native instead
See josharian/native#3

Updates golang/go#57237

Change-Id: I238c04c6654e5b9e7d9cfb81a7bbc5e1043a84a2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
David Anderson b2d4abf25a cmd/k8s-operator: add a kubernetes operator.
This was initially developed in a separate repo, but for build/release
reasons and because go module management limits the damage of importing
k8s things now, moving it into this repo.

At time of commit, the operator enables exposing services over tailscale,
with the 'tailscale' loadBalancerClass. It also currently requires an
unreleased feature to access the Tailscale API, so is not usable yet.

Updates #502.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
Brad Fitzpatrick 7b65b7f85c go.mod: bump tailscale/wireguard-go for loong64
Updates tailscale/tailscale#6233

Change-Id: I5ba1826e79be51c03b19f2b31d73024410be4970
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 5a523fdc7f go.mod: update deps to add support for GOARCH=loong64
Updates tailscale/tailscale#6233

Change-Id: Ibbc8e42607342e4ab4fc0b365ed628d82b56864d
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
Jordan Whited 76389d8baf
net/tstun, wgengine/magicsock: enable vectorized I/O on Linux (#6663)
This commit updates the wireguard-go dependency and implements the
necessary changes to the tun.Device and conn.Bind implementations to
support passing vectors of packets in tailscaled. This significantly
improves throughput performance on Linux.

Updates #414

Signed-off-by: Jordan Whited <jordan@tailscale.com>
Signed-off-by: James Tucker <james@tailscale.com>
Co-authored-by: James Tucker <james@tailscale.com>
2 years ago
Aaron Klotz 98f21354c6 cmd/tailscaled: add a special command to tailscaled's Windows service for removing WinTun
WinTun is installed lazily by tailscaled while it is running as LocalSystem.
Based upon what we're seeing in bug reports and support requests, removing
WinTun as a lesser user may fail under certain Windows versions, even when that
user is an Administrator.

By adding a user-defined command code to tailscaled, we can ask the service to
do the removal on our behalf while it is still running as LocalSystem.

* The uninstall code is basically the same as it is in corp;
* The command code will be sent as a service control request and is protected by
  the SERVICE_USER_DEFINED_CONTROL access right, which requires Administrator.

I'll be adding follow-up patches in corp to engage this functionality.

Updates https://github.com/tailscale/tailscale/issues/6433

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2 years ago
Brad Fitzpatrick 1598cd0361 net/tsaddr: remove ContainsFunc helpers (they're now in x/exp/slices)
x/exp/slices now has ContainsFunc (golang/go#53983) so we can delete
our versions.

Change-Id: I5157a403bfc1b30e243bf31c8b611da25e995078
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Maisem Ali adc302f428 all: use named pipes on windows
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Aaron Klotz 033bd94d4c cmd/tailscaled, wgengine/router: use wingoes/com for COM initialization instead of go-ole
This patch removes the crappy, half-backed COM initialization used by `go-ole`
and replaces that with the `StartRuntime` function from `wingoes`, a library I
have started which, among other things, initializes COM properly.

In particular, we should always be initializing COM to use the multithreaded
apartment. Every single OS thread in the process becomes implicitly initialized
as part of the MTA, so we do not need to concern ourselves as to whether or not
any particular OS thread has initialized COM. Furthermore, we no longer need to
lock the OS thread when calling methods on COM interfaces.

Single-threaded apartments are designed solely for working with Win32 threads
that have a message pump; any other use of the STA is invalid.

Fixes https://github.com/tailscale/tailscale/issues/3137

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2 years ago
Tom DNetto 6708f9a93f cmd/tailscale,ipn: implement lock log command
This commit implements `tailscale lock log [--limit N]`, which displays an ordered list
of changes to network-lock state in a manner familiar to `git log`.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Andrew Dunham a0ef51f570 cmd/{tailscale,tailscaled}: embed manifest into Windows binaries
This uses a go:generate statement to create a bunch of .syso files that
contain a Windows resource file. We check these in since they're less
than 1KiB each, and are only included on Windows.

Fixes #6429

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I0512c3c0b2ab9d8d8509cf2037b88b81affcb81f
2 years ago
Brad Fitzpatrick 001f482aca net/dns: make "direct" mode on Linux warn on resolv.conf fights
Run an inotify goroutine and watch if another program takes over
/etc/inotify.conf. Log if so.

For now this only logs. In the future I want to wire it up into the
health system to warn (visible in "tailscale status", etc) about the
situation, with a short URL to more info about how you should really
be using systemd-resolved if you want programs to not fight over your
DNS files on Linux.

Updates #4254 etc etc

Change-Id: I86ad9125717d266d0e3822d4d847d88da6a0daaa
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 6aab4fb696 cmd/tailscale/cli: start making cert output support pkcs12 (p12) output
If the --key-file output filename ends in ".pfx" or ".p12", use pkcs12
format.

This might not be working entirely correctly yet but might be enough for
others to help out or experiment.

Updates #2928
Updates #5011

Change-Id: I62eb0eeaa293b9fd5e27b97b9bc476c23dd27cf6
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Pat Maddox 9bf3ef4167 ssh/tailssh: add Tailscale SSH (server) support on FreeBSD
Change-Id: I607194b6ef99205e777f3df93a74ffe1a2e0344c
Signed-off-by: Pat Maddox <pat@ratiopbc.com>
2 years ago
David Anderson 76904b82e7 cmd/containerboot: PID1 for running tailscaled in a container.
This implements the same functionality as the former run.sh, but in Go
and with a little better awareness of tailscaled's lifecycle.

Also adds TS_AUTH_ONCE, which fixes the unfortunate behavior run.sh had
where it would unconditionally try to reauth every time if you gave it
an authkey, rather than try to use it only if auth is actually needed.
This makes it a bit nicer to deploy these containers in automation, since
you don't have to run the container once, then go and edit its definition
to remove authkeys.

Signed-off-by: David Anderson <danderson@tailscale.com>
2 years ago
Brad Fitzpatrick a0ed2c2eb5 go.mod: bump golang-x-crypto
Fixes #5533

Change-Id: I403de0e9ed5a9a63055242a86720d6f4e0899af7
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Joe Tsai b2035a1dca
cmd/netlogfmt: handle any stream of network logs (#6108)
Make netlogfmt useful regardless of the exact schema of the input.
If a JSON object looks like a network log message,
then unmarshal it as one and then print it.
This allows netlogfmt to support both a stream of JSON objects
directly serialized from netlogtype.Message, or the schema
returned by the /api/v2/tailnet/{{tailnet}}/network-logs API endpoint.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Joe Tsai c21a3c4733
types/netlogtype: new package for network logging types (#6092)
The netlog.Message type is useful to depend on from other packages,
but doing so would transitively cause gvisor and other large packages
to be linked in.

Avoid this problem by moving all network logging types to a single package.

We also update staticcheck to take in:

	003d277bcf

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2 years ago
Anton Tolchanov 26af329fde prober: expand certificate verification logic in the TLS prober
TLS prober now checks validity period for all server certificates
and verifies OCSP revocation status for the leaf cert.

Signed-off-by: Anton Tolchanov <anton@tailscale.com>
2 years ago
Brad Fitzpatrick e24de8a617 ssh/tailssh: add password-forcing workaround for buggy SSH clients
If the username includes a suffix of +password, then we accept
password auth and just let them in like it were no auth.

This exists purely for SSH clients that get confused by seeing success
to their initial auth type "none".

Co-authored-by: Maisem Ali <maisem@tailscale.com>
Change-Id: I616d4c64d042449fb164f615012f3bae246e91ec
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Maisem Ali 4de1601ef4 ssh/tailssh: add support for sending multiple banners
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Brad Fitzpatrick b1bd96f114 go.mod, ssh/tailssh: fix ImplictAuthMethod typo
Fixes #5745

Change-Id: Ie8bc88bd465a9cb35b0ae7782d61ce96480473ee
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Florian Lehner 7e0ffc17fd Address GO-2022-0969
HTTP/2 server connections can hang forever waiting for a clean
shutdown that was preempted by a fatal error. This condition can
be exploited by a malicious client to cause a denial of service.

Signed-off-by: Florian Lehner <dev@der-flo.net>
2 years ago
Florian Lehner 17348915fa Address GO-2020-0042
Due to improper path santization, RPMs containing relative file
paths can cause files to be written (or overwritten) outside of the
target directory.

Signed-off-by: Florian Lehner <dev@der-flo.net>
2 years ago
Brad Fitzpatrick 56f6fe204b go.mod, wgengine/wgint: bump wireguard-go
For b51010ba13

Change-Id: Ibf767dfad98aef7e9f0505d91c0d26f924e046d5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 9bd9f37d29 go.mod: bump wireguard/windows, which moves to using net/netip
Updates #5162

Change-Id: If99a3f0000bce0c01bdf44da1d513f236fd7cdf8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
dependabot[bot] 9996d94b3c build(deps): bump github.com/u-root/u-root from 0.8.0 to 0.9.0
Bumps [github.com/u-root/u-root](https://github.com/u-root/u-root) from 0.8.0 to 0.9.0.
- [Release notes](https://github.com/u-root/u-root/releases)
- [Changelog](https://github.com/u-root/u-root/blob/main/RELEASES)
- [Commits](https://github.com/u-root/u-root/compare/v0.8.0...v0.9.0)

---
updated-dependencies:
- dependency-name: github.com/u-root/u-root
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>
2 years ago
Mihai Parparita ab159f748b cmd/tsconnect: switch UI to Preact
Reduces the amount of boilerplate to render the UI and makes it easier to
respond to state changes (e.g. machine getting authorized, netmap changing,
etc.)

Preact adds ~13K to our bundle size (5K after Brotli) thus is a neglibible
size contribution. We mitigate the delay in rendering the UI by having a static
placeholder in the HTML.

Required bumping the esbuild version to pick up evanw/esbuild#2349, which
makes it easier to support Preact's JSX code generation.

Fixes #5137
Fixes #5273

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Maisem Ali eb32847d85 tailcfg: add CapabilityFileSharingTarget to identify FileTargets
This adds the inverse to CapabilityFileSharingSend so that senders can
identify who they can Taildrop to.

Updates #2101

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Brad Fitzpatrick e1309e1323 all: require Go 1.19
Updates #5210

Change-Id: I2e950b4776636b4ea89b6566b60e4a87596a3a43
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 5d0e3d379c go.mod: bump gvisor
For https://github.com/google/gvisor/pull/7850 to quiet macOS warnings.

Updates #5240

Change-Id: Iaa7abab20485c8ff40e5c9b16013aef4fd297a64
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick acc3b7f259 go.mod: bump inet.af/wf, tidy
This removes inet.af/netaddr from go.{mod,sum}.

Updates #5162

Change-Id: I7121e9fbb96d036cf188c51f0b53731570252d69
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick dd3e91b678 go.mod: tidy, remove inet.af/netaddr
It was actually unused earlier, but I had a test program
in my git workdir, keeping go mod tidy from cleaning it.
(more CI needed, perhaps)

Updates #5162

Change-Id: I9047a9aaa6fde7736d6ef516dc3bb652d06fe921
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
Maisem Ali 9514ed33d2 go.mod: bump gvisor.dev/gvisor
Pick up https://github.com/google/gvisor/pull/7787

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Mihai Parparita 6f5096fa61 cmd/tsconnect: initial scaffolding for Tailscale Connect browser client
Runs a Tailscale client in the browser (via a WebAssembly build of the
wasm package) and allows SSH access to machines. The wasm package exports
a newIPN function, which returns a simple JS object with methods like
start(), login(), logout() and ssh(). The golang.org/x/crypto/ssh
package is used for the SSH client.

Terminal emulation and QR code renedring is done via NPM packages (xterm
and qrcode respectively), thus we also need a JS toolchain that can
install and bundle them. Yarn is used for installation, and esbuild
handles loading them and bundling for production serving.

Updates #3157

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Xe Iaso 004f0ca3e0
cmd/gitops-pusher: format HuJSON, enabling exact ACL matches (#5061)
Signed-off-by: Xe <xe@tailscale.com>
2 years ago
Tom DNetto 1cfd96cdc2 tka: implement AUM and Key types
This is the first in a series of PRs implementing the internals for the
Tailnet Key Authority. This PR implements the AUM and Key types, which
are used by pretty much everything else. Future PRs:

 - The State type & related machinery
 - The Tailchonk (storage) type & implementation
 - The Authority type and sync implementation

Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Brad Fitzpatrick c93fd0d22b go.mod: bump wireguard-go to set CLOEXEC on tun/netlink fds
To get:
c31a7b1ab4

Diff:
95b48cdb39..c31a7b1ab4

Fixes #4992

Change-Id: I077586fefcde923a2721712dd54548f97d010f72
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 6b71568eb7 util/cloudenv: add Azure support & DNS IPs
And rewrite cloud detection to try to do only zero or one metadata
discovery request for all clouds, only doing a first (or second) as
confidence increases. Work remains for Windows, but a start.

And add Cloud to tailcfg.Hostinfo, which helped with testing using
"tailcfg debug hostinfo".

Updates #4983 (Linux only)
Updates #4984

Change-Id: Ib03337089122ce0cb38c34f724ba4b4812bc614e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 88c2afd1e3 ipn/ipnlocal, net/dns*, util/cloudenv: specialize DNS config on Google Cloud
This does three things:

* If you're on GCP, it adds a *.internal DNS split route to the
  metadata server, so we never break GCP DNS names. This lets people
  have some Tailscale nodes on GCP and some not (e.g. laptops at home)
  without having to add a Tailnet-wide *.internal DNS route.
  If you already have such a route, though, it won't overwrite it.

* If the 100.100.100.100 DNS forwarder has nowhere to forward to,
  it forwards it to the GCP metadata IP, which forwards to 8.8.8.8.
  This means there are never errNoUpstreams ("upstream nameservers not set")
  errors on GCP due to e.g. mangled /etc/resolv.conf (GCP default VMs
  don't have systemd-resolved, so it's likely a DNS supremacy fight)

* makes the DNS fallback mechanism use the GCP metadata IP as a
  fallback before our hosted HTTP-based fallbacks

I created a default GCP VM from their web wizard. It has no
systemd-resolved.

I then made its /etc/resolv.conf be empty and deleted its GCP
hostnames in /etc/hosts.

I then logged in to a tailnet with no global DNS settings.

With this, tailscaled writes /etc/resolv.conf (direct mode, as no
systemd-resolved) and sets it to 100.100.100.100, which then has
regular DNS via the metadata IP and *.internal DNS via the metadata IP
as well. If the tailnet configures explicit DNS servers, those are used
instead, except for *.internal.

This also adds a new util/cloudenv package based on version/distro
where the cloud type is only detected once. We'll likely expand it in
the future for other clouds, doing variants of this change for other
popular cloud environments.

Fixes #4911

RELNOTES=Google Cloud DNS improvements

Change-Id: I19f3c2075983669b2b2c0f29a548da8de373c7cf
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Brad Fitzpatrick 22c544bca7 go.mod: bump go4.org/unsafe/assume-no-moving-gc for Go 1.19beta1
Otherwise we crash at startup with Go 1.19beta1.

Updates #4872

Change-Id: I371df4146735f7e066efd2edd48c1a305906c13d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
Maisem Ali bf2fa7b184 go.mod: pin github.com/tailscale/mkctr (try #2)
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Maisem Ali 81487169f0 build_docker.sh: pin github.com/tailscale/mkctr
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
James Tucker 87b44aa311 go.mod: bump golang.org/x/sys for CVE-2022-29526
Signed-off-by: James Tucker <james@tailscale.com>
3 years ago
Joe Tsai 741ae9956e
tstest/integration/vms: use hujson.Standardize instead of hujson.Unmarshal (#4520)
The hujson package transition to just being a pure AST
parser and formatter for HuJSON and not an unmarshaler.

Thus, parse HuJSON as such, convert it to JSON,
and then use the standard JSON unmarshaler.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
3 years ago
Brad Fitzpatrick 6f5b91c94c go.mod: tidy
Change-Id: If3b5fe42e7dd7858dcce02a3a24a5e59736815a2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 2336c73d4d go.mod: tidy
Change-Id: If3b5fe42e7dd7858dcce02a3a24a5e59736815a2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick c88506caa6 ipn/ipnlocal: add Wake-on-LAN function to peerapi
No CLI support yet. Just the curl'able version if you know the peerapi
port. (like via a TSMP ping)

Updates #306

Change-Id: I0662ba6530f7ab58d0ddb24e3664167fcd1c4bcf
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Maisem Ali 90b5f6286c cmd/tailscale: use double quotes in the ssh subcommands
Single-quote escaping is insufficient apparently.

Updates #3802

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick 53588f632d Revert "wgengine/router,util/kmod: load & log xt_mark"
This reverts commit 8d6793fd70.

Reason: breaks Android build (cgo/pthreads addition)

We can try again next cycle.

Change-Id: I5e7e1730a8bf399a8acfce546a6d22e11fb835d5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
James Tucker 8d6793fd70 wgengine/router,util/kmod: load & log xt_mark
Attempt to load the xt_mark kernel module when it is not present. If the
load fails, log error information.

It may be tempting to promote this failure to an error once it has been
in use for some time, so as to avoid reaching an error with the iptables
invocation, however, there are conditions under which the two stages may
disagree - this change adds more useful breadcrumbs.

Example new output from tailscaled running under my WSL2:

```
router: ensure module xt_mark: "/usr/sbin/modprobe xt_mark" failed: exit status 1; modprobe: FATAL: Module xt_mark not found in directory /lib/modules/5.10.43.3-microsoft-standard-WSL2
```

Background:

There are two places to lookup modules, one is `/proc/modules` "old",
the other is `/sys/module/` "new".

There was query_modules(2) in linux <2.6, alas, it is gone.

In a docker container in the default configuration, you would get
/proc/modules and /sys/module/ both populated. lsmod may work file,
modprobe will fail with EPERM at `finit_module()` for an unpriviliged
container.

In a priviliged container the load may *succeed*, if some conditions are
met. This condition should be avoided, but the code landing in this
change does not attempt to avoid this scenario as it is both difficult
to detect, and has a very uncertain impact.

In an nspawn container `/proc/modules` is populated, but `/sys/module`
does not exist. Modern `lsmod` versions will fail to gather most module
information, without sysfs being populated with module information.

In WSL2 modules are likely missing, as the in-use kernel typically is
not provided by the distribution filesystem, and WSL does not mount in a
module filesystem of its own. Notably the WSL2 kernel supports iptables
marks without listing the xt_mark module in /sys/module, and
/proc/modules is empty.

On a recent kernel, we can ask the capabilities system about SYS_MODULE,
that will help to disambiguate between the non-privileged container case
and just being root. On older kernels these calls may fail.

Update #4329

Signed-off-by: James Tucker <james@tailscale.com>
3 years ago
Maisem Ali 2b8b887d55 ssh/tailssh: send banner messages during auth, move more to conn
(VSCode Live Share between Brad & Maisem!)

Updates #3802

Change-Id: Id8edca4481b0811debfdf56d4ccb1a46f71dd6d3
Co-Authored-By: Brad Fitzpatrick <bradfitz@tailscale.com>
Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Maisem Ali 14d077fc3a ssh/tailssh: terminate ssh auth early if no policy can match
Also bump github.com/tailscale/golang-x-crypto/ssh

Updates #3802

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
James Tucker 67192a2323 go.mod: bump u-root
We only use the termios subpackage, so we're unaffected by
CVE-2020-7665, but the bump will let dependabot return to slumber.

Fixes https://github.com/tailscale/tailscale/security/dependabot/2

Signed-off-by: James Tucker <james@tailscale.com>
3 years ago
Xe Iaso 4f1d6c53cb
cmd/nginx-auth: create new Tailscale NGINX auth service (#4400)
This conforms to the NGINX subrequest result authentication protocol[1]
using the NGINX module `ngx_http_auth_request_module`. This is based on
the example that @peterkeen provided on Twitter[2], but with several
changes to make things more tightly locked down:

* This listens over a UNIX socket instead of a TCP socket to prevent
  leakage to the network
* This uses systemd socket activation so that systemd owns the socket
  and can then lock down the service to the bare minimum required to do
  its job without having to worry about dropping permissions
* This provides additional information in HTTP response headers that can
  be useful for integrating with various services
* This has a script to automagically create debian and redhat packages
  for easier distribution

This will be written about on the Tailscale blog. There is more
information in README.md.

[1]: https://docs.nginx.com/nginx/admin-guide/security-controls/configuring-subrequest-authentication/
[2]: https://github.com/peterkeen/tailscale/blob/main/cmd/nginx-auth-proxy/nginx-auth-proxy.go

Signed-off-by: Xe Iaso <xe@tailscale.com>
3 years ago
Brad Fitzpatrick 09c5c9eb83 go.mod: bump x/tools for go/packages generics fix
Updates #4194

Change-Id: Ia992ffb14210d5ad53f8f98d12b80d64080998e6
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
James Tucker 8226f1482c
go.mod: bump rtnetlink for address label encoding (#4386)
This will enable me to land tests for the upcoming monitor change in
PR #4385.

Update #4385
Update #4282

Signed-off-by: James Tucker <james@tailscale.com>
3 years ago
James Tucker 2550acfd9d
go.mod: bump netstack for clone reset fix (#4379)
In tracking down issue #4144 and reading through the netstack code in
detail, I discovered that the packet buf Clone path did not reset the
packetbuf it was getting from the sync.Pool. The fix was sent upstream
https://github.com/google/gvisor/pull/7385, and this bump pulls that in.
At this time there is no known path that this fixes, however at the time
of upstream submission this reset at least one field that could lead to
incorrect packet routing if exercised, a situation that could therefore
lead to an information leak.

Signed-off-by: James Tucker <james@tailscale.com>
3 years ago
Xe Iaso 55161b3d92
cmd/mkpkg: use package flag (#4373)
Also removes getopt

Signed-off-by: Xe <xe@tailscale.com>
3 years ago
Matt Layher c79c72c4fc go.mod: github.com/mdlayher/sdnotify@v1.0.0
Signed-off-by: Matt Layher <mdlayher@gmail.com>
3 years ago
Maisem Ali ac2033d98c
go.mod: bump staticcheck (#4359)
Updates #4194

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick 3d180c0376 go.mod, ssh/tailssh, tempfork/gliderlabs: bump x/crypto/ssh fork for NoClientAuthCallback
Prep for evaluating SSHPolicy earlier to decide whether certs are
required, which requires knowing the target SSH user.

Updates #3802

Change-Id: I2753ec8069e7f19c9121300d0fb0813c1c627c36
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 5a44f9f5b5 tempfork: temporarily fork gliderlabs/ssh and x/crypto/ssh
While we rearrange/upstream things.

gliderlabs/ssh is forked into tempfork from our prior fork
at be8b7add40

x/crypto/ssh OTOH is forked at
https://github.com/tailscale/golang-x-crypto because it was gnarlier
to vendor with various internal packages, etc.
Its git history shows where it starts (2c7772ba30643b7a2026cbea938420dce7c6384d).

Updates #3802

Change-Id: I546e5cdf831cfc030a6c42557c0ad2c58766c65f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 8294915780 cmd/tailscale/cli: add start of 'ssh' subcommand
Updates #3802

Change-Id: Iabc07c00c7e4f43944cfe7daec8d2b66ac002289
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 4fc38888d2 go.mod: bump x/crypto for SSH change
(for golang/go#51808)

Updates #3802

Change-Id: Ifbd483c0144b4c86da69143b23b2a06da7672c92
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
James Tucker 73314009d0
go.mod: bump netstack (#4222)
Primarily this is for f375784d83852b1e3ff20cc9de0648b3c0cf8525 and the
related commits that provide buffer pooling for the endpoint code paths
we use.

Signed-off-by: James Tucker <james@tailscale.com>
3 years ago
Josh Bleecher Snyder 5f176f24db go.mod: upgrade to the latest wireguard-go
This pulls in a handful of fixes and an update to Go 1.18.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 8c2cb4b431 go.mod: update to latest certstore
It includes a fix to allow us to use Go 1.18.
We can now remove our Tailscale-only build tags.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder 71b535fc94 go.mod: require Go 1.18
Also, update depaware for Go 1.18's dependency tree.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Josh Bleecher Snyder f695f0b178 go.mod: update golang.org/x/tools and honnef.co/go/tools
This is required for staticcheck to process code
using Go 1.18.

This puts us on a random commit on the bleeding edge
of staticcheck, which isn't great, but there don't
appear to have been any releases yet that support 1.18.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
3 years ago
Maisem Ali da6ce27416 go.mod: move from github.com/gliderlabs/ssh to github.com/tailscale/ssh
Updates #4146

Signed-off-by: Maisem Ali <maisem@tailscale.com>
3 years ago
Brad Fitzpatrick ba1adf6c24 ssh/tailssh: make pty termios options match OpenSSH
Still not sure the exact rules of how/when/who's supposed to set
these, but this works for now on making them match. Baby steps.
Will research more and adjust later.

Updates #4146 (but not enough to fix it, something's still wrong)
Updates #3802

Change-Id: I496d8cd7e31d45fe9ede88fc8894f35dc096de67
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Dmytro Shynkevych d9a7205be5 net/tstun: set link speed to SPEED_UNKNOWN
Fixes #3933.

Signed-off-by: Dmytro Shynkevych <dm.shynk@gmail.com>
3 years ago
David Anderson 0fc1479633 go.mod: update github.com/mdlayher/netlink to 1.6.0
This unbreaks some downstream users of tailscale who end up
with build errors from importing a v0 indirect dependency.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
Brad Fitzpatrick 1af26222b6 go.mod: bump netstack, switch to upstream netstack
Now that Go 1.17 has module graph pruning
(https://go.dev/doc/go1.17#go-command), we should be able to use
upstream netstack without breaking our private repo's build
that then depends on the tailscale.com Go module.

This is that experiment.

Updates #1518 (the original bug to break out netstack to own module)
Updates #2642 (this updates netstack, but doesn't remove workaround)

Change-Id: I27a252c74a517053462e5250db09f379de8ac8ff
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
Brad Fitzpatrick 39ffa16853 net/dnscache, net/tsdial: add DNS caching to tsdial UserDial
This is enough to handle the DNS queries as generated by Go's
net package (which our HTTP/SOCKS client uses), and the responses
generated by the ExitDNS DoH server.

This isn't yet suitable for putting on 100.100.100.100 where a number
of different DNS clients would hit it, as this doesn't yet do
EDNS0. It might work, but it's untested and likely incomplete.

Likewise, this doesn't handle anything about truncation, as the
exchanges are entirely in memory between Go or DoH. That would also
need to be handled later, if/when it's hooked up to 100.100.100.100.

Updates #3507

Change-Id: I1736b0ad31eea85ea853b310c52c5e6bf65c6e2a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
3 years ago
David Anderson 190b7a4cca go.mod: mass update with go get -u.
Gets ahead of dependabot slightly, but the updates are minor.

Signed-off-by: David Anderson <danderson@tailscale.com>
3 years ago
dependabot[bot] 0d8ef1ff35 go.mod: bump github.com/aws/aws-sdk-go-v2/service/ssm
Bumps [github.com/aws/aws-sdk-go-v2/service/ssm](https://github.com/aws/aws-sdk-go-v2) from 1.17.0 to 1.17.1.
- [Release notes](https://github.com/aws/aws-sdk-go-v2/releases)
- [Changelog](https://github.com/aws/aws-sdk-go-v2/blob/main/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-go-v2/compare/service/s3/v1.17.0...service/ssm/v1.17.1)

---
updated-dependencies:
- dependency-name: github.com/aws/aws-sdk-go-v2/service/ssm
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
3 years ago
dependabot[bot] 329751c48e go.mod: bump golang.org/x/tools from 0.1.7 to 0.1.8
Bumps [golang.org/x/tools](https://github.com/golang/tools) from 0.1.7 to 0.1.8.
- [Release notes](https://github.com/golang/tools/releases)
- [Commits](https://github.com/golang/tools/compare/v0.1.7...v0.1.8)

---
updated-dependencies:
- dependency-name: golang.org/x/tools
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
3 years ago
dependabot[bot] 9ddef8cdbf go.mod: bump github.com/mdlayher/netlink from 1.4.1 to 1.4.2
Bumps [github.com/mdlayher/netlink](https://github.com/mdlayher/netlink) from 1.4.1 to 1.4.2.
- [Release notes](https://github.com/mdlayher/netlink/releases)
- [Changelog](https://github.com/mdlayher/netlink/blob/main/CHANGELOG.md)
- [Commits](https://github.com/mdlayher/netlink/compare/v1.4.1...v1.4.2)

---
updated-dependencies:
- dependency-name: github.com/mdlayher/netlink
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
3 years ago
dependabot[bot] 9140f193bc go.mod: bump github.com/aws/aws-sdk-go-v2/feature/s3/manager
Bumps [github.com/aws/aws-sdk-go-v2/feature/s3/manager](https://github.com/aws/aws-sdk-go-v2) from 1.7.3 to 1.7.4.
- [Release notes](https://github.com/aws/aws-sdk-go-v2/releases)
- [Changelog](https://github.com/aws/aws-sdk-go-v2/blob/main/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-go-v2/compare/service/fsx/v1.7.3...feature/s3/manager/v1.7.4)

---
updated-dependencies:
- dependency-name: github.com/aws/aws-sdk-go-v2/feature/s3/manager
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
3 years ago
Artyom Pervukhin 49a9e62d58 Replace AWS SDK v1 dependency with v2
This change drops AWS SDKv1 dependency, leaving only SDK v2 in use.

Closes #3461

Signed-off-by: Artyom Pervukhin <github@artyom.dev>
3 years ago
dependabot[bot] d89c61b812 go.mod: bump github.com/aws/aws-sdk-go-v2/service/ssm
Bumps [github.com/aws/aws-sdk-go-v2/service/ssm](https://github.com/aws/aws-sdk-go-v2) from 1.16.0 to 1.17.0.
- [Release notes](https://github.com/aws/aws-sdk-go-v2/releases)
- [Changelog](https://github.com/aws/aws-sdk-go-v2/blob/main/CHANGELOG.md)
- [Commits](https://github.com/aws/aws-sdk-go-v2/compare/service/s3/v1.16.0...service/s3/v1.17.0)

---
updated-dependencies:
- dependency-name: github.com/aws/aws-sdk-go-v2/service/ssm
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
3 years ago