Commit Graph

857 Commits

Author SHA1 Message Date
Maisem Ali
81487169f0 build_docker.sh: pin github.com/tailscale/mkctr
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-06-01 19:55:06 +05:00
Brad Fitzpatrick
4d85cf586b cmd/tailscale, ipn/ipnlocal: add "peerapi" ping type
For debugging when stuff like #4750 isn't working.

RELNOTE=tailscale ping -peerapi

Change-Id: I9c52c90fb046e3ab7d2b121387073319fbf27b99
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-05-28 13:47:12 -07:00
Aaron Klotz
b005b79236 net/dns, paths, util/winutil: change net/dns/windowsManager NRPT management to support more than 50 domains.
AFAICT this isn't documented on MSDN, but based on the issue referenced below,
NRPT rules are not working when a rule specifies > 50 domains.

This patch modifies our NRPT rule generator to split the list of domains
into chunks as necessary, and write a separate rule for each chunk.

For compatibility reasons, we continue to use the hard-coded rule ID, but
as additional rules are required, we generate new GUIDs. Those GUIDs are
stored under the Tailscale registry path so that we know which rules are ours.

I made some changes to winutils to add additional helper functions in support
of both the code and its test: I added additional registry accessors, and also
moved some token accessors from paths to util/winutil.

Fixes https://github.com/tailscale/coral/issues/63

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-05-27 14:56:09 -06:00
James Tucker
3f686688a6 cmd/tailscaled: fix state path for windows svc
Signed-off-by: James Tucker <james@tailscale.com>
2022-05-26 17:59:50 -07:00
Aaron Klotz
c163b2a3f1 util/winutil, util/winutil/vss: remove winrestore and vss as they are unnecessary.
I wrote this code way back at the beginning of my tenure at Tailscale when we
had concerns about needing to restore deleted machine keys from backups.

We never ended up using this functionality, and the code is now getting in the
way, so we might as well remove it.

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-05-26 12:13:36 -06:00
Mihai Parparita
eda647cb47 cmd/tailscale/cli: fix ssh CLI command breaking the Wasm build
Adds a stub for syscall.Exec when GOOS=js. We also had a separate branch
for Windows, might as well use the same mechanism there too.

For #3157

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-05-19 20:49:34 -07:00
Brad Fitzpatrick
48d43134d7 cmd/tsshd: delete, leaving only forwarding docs
Updates #3802

Change-Id: I89d4d3d68d64af9bc7288a149b4b34f61884f5f4
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-05-16 11:52:44 -07:00
James Tucker
4bb7440094 cmd/tailscaled: use --statedir as documented
Enables the behavior described in the statepath flag, where if only
statedir is passed, then state is statedir/tailscaled.state.

Signed-off-by: James Tucker <james@tailscale.com>
2022-05-10 15:13:13 -07:00
Maisem Ali
d04afc697c cmd/viewer,types/views: add support for views of maps
Updates #4635

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-05-09 19:49:31 -07:00
Maisem Ali
c4e9739251 cmd/viewer: add codegen tool for Views
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-05-06 10:58:10 -07:00
Maisem Ali
e409e59a54 cmd/cloner,util/codegen: refactor cloner internals to allow reuse
Also run go generate again for Copyright updates.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-05-06 10:58:10 -07:00
James Tucker
f9e86e64b7 *: use WireGuard where logged, printed or named
Signed-off-by: James Tucker <james@tailscale.com>
2022-05-04 13:36:05 -07:00
Brad Fitzpatrick
3e1f2d01f7 ipn/ipnlocal: move Ping method from IPN bus to LocalBackend (HTTP)
Change-Id: I61759f1dae8d9d446353db54c8b1e13bfffb3287
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-05-03 15:59:19 -07:00
James Tucker
ae483d3446 wgengine, net/packet, cmd/tailscale: add ICMP echo
Updates tailscale/corp#754

Signed-off-by: James Tucker <james@tailscale.com>
2022-05-03 13:03:45 -07:00
Tom DNetto
9dee6adfab cmd/tailscaled,ipn/ipnlocal,wgengine/...: pass dns.Manager into netstack
Needed for a following commit which moves magicDNS handling into
netstack.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-04-30 10:18:59 -07:00
Aaron Klotz
d915e0054c cmd/tailscaled: change Windows service shutdown and add optional event logging
Once a stop request is received and the service updates its status to `svc.StopPending`,
it should continue running *until the shutdown sequence is complete*, and then
return out of `(*ipnService).Execute`, which automatically sends a `svc.Stopped`
notification to Windows.

To make this happen, I changed the loop so that it runs until `doneCh` is
closed, and then returns. I also removed a spurious `svc.StopPending` notification
that the Windows Service Control Manager might be interpreting as a request for
more time to shut down.

Finally, I added some optional logging that sends a record of service notifications
to the Windows event log, allowing us to more easily correlate with any Service
Control Manager errors that are sent to the same log.

Change-Id: I5b596122e5e89c4c655fe747a612a52cb4e8f1e0
Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-04-29 15:13:11 -07:00
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>
2022-04-29 13:57:52 -07:00
Brad Fitzpatrick
6bed781259 all: gofmt all
Well, goimports actually (which adds the normal import grouping order we do)

Change-Id: I0ce1b1c03185f3741aad67c14a7ec91a838de389
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-29 13:06:04 -07:00
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>
2022-04-27 12:02:36 -07:00
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>
2022-04-26 15:20:59 -07:00
Brad Fitzpatrick
50eb8c5add cmd/tailscale: mostly fix 'tailscale ssh' on macOS (sandbox)
Still a little wonky, though. See the tcsetattr error and inability to
hit Ctrl-D, for instance:

    bradfitz@laptop ~ % tailscale.app ssh foo@bar
    tcsetattr: Operation not permitted
    # Authentication checked with Tailscale SSH.
    # Time since last authentication: 1h13m22s
    foo@bar:~$ ^D
    ^D
    ^D

Updates #4518
Updates #4529

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-26 07:40:42 -07:00
Brad Fitzpatrick
48e5f4ff88 cmd/tailscale/cli: add 'debug stat' subcommand
For debugging what's visible inside the macOS sandbox.

But could also be useful for giving users portable commands
during debugging without worrying about which OS they're on.

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-26 07:30:08 -07:00
Brad Fitzpatrick
3601b43530 ipn: add IPCVersion override func
I've done this a handful of times in the past and again today.
Time to make it a supported thing for the future.

Used while debugging tailscale/corp#4559 (macsys CLI issues)

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-25 20:51:05 -07:00
James Tucker
928d1fddd2 cmd/tailscale: s/-authkey/-auth-key/ in help text
Signed-off-by: James Tucker <james@tailscale.com>
2022-04-25 17:30:50 -07:00
Brad Fitzpatrick
910ae68e0b util/mak: move tailssh's mapSet into a new package for reuse elsewhere
Change-Id: Idfe95db82275fd2be6ca88f245830731a0d5aecf
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-21 21:20:10 -07:00
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>
2022-04-21 17:43:04 -07:00
Maisem Ali
db70774685 cmd/tailscale/cli: do not use syscall.Exec from macOS sandbox
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-04-21 17:07:18 -07:00
Maisem Ali
695f8a1d7e ssh/tailssh: add support for sftp
Updates #3802

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-04-21 10:52:22 -07:00
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>
2022-04-21 09:53:23 -07:00
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>
2022-04-20 22:21:35 -07:00
Brad Fitzpatrick
d413850bd7 cmd/tailscale: add "debug via" subcommand to do CIDR math for via ranges
$ tailscale debug via 0xb 10.2.0.0/16
fd7a:115c:a1e0:b1a:0🅱️a02:0/112
$ tailscale debug via fd7a:115c:a1e0:b1a:0🅱️a02:0/112
site 11 (0xb), 10.2.0.0/16

Previously: 3ae701f0eb

This adds a little debug tool to do CIDR math to make converting between
those ranges easier for now.

Updates #3616

Change-Id: I98302e95d17765bfaced3ecbb71cbd43e84bff46
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-20 14:47:48 -07:00
Xe Iaso
fc2f628d4c
cmd/nginx-auth: maintainer scripts and tailnet checking (#4460)
* cmd/nginx-auth: add maintainer scripts

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

* cmd/nginx-auth: add Expected-Tailnet header and documentation

Signed-off-by: Xe <xe@tailscale.com>
2022-04-20 13:06:05 -04:00
Blake Mizerany
33fa43252e cmd/proxy-to-grafana: prevent premature termination
This commit changes proxy-to-grafana to report errors while polling for
tailscaled status instead of terminating at the first sign of an error.
This allows tailscale some time to come up before the proxy decides to
give up.

Signed-off-by: Blake Mizerany <blake.mizerany@gmail.com>
2022-04-19 13:31:36 -07:00
Maisem Ali
945879fa38 cmd/tailscale: [ssh] enable StrictHostKeyChecking mode
Updates #3802

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-04-18 10:11:36 -07:00
Brad Fitzpatrick
8f5e5bff1e cmd/tailscale, etc: make "tailscale up --ssh" fail fast when unavailable
Fail on unsupported platforms (must be Linux or macOS tailscaled with
WIP env) or when disabled by admin (with TS_DISABLE_SSH_SERVER=1)

Updates #3802

Change-Id: I5ba191ed0d8ba4ddabe9b8fc1c6a0ead8754b286
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-18 09:45:46 -07:00
Brad Fitzpatrick
f0e2272e04 cmd/tailscale: unhide 'up --ssh' behind WIP env var
Updates #3802

Change-Id: I99c550c2e4450640b0ee6ab060f178dde1360553
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-18 07:55:16 -07:00
Brad Fitzpatrick
8ee044ea4a ssh/tailssh: make the SSH server a singleton, register with LocalBackend
Remove the weird netstack -> tailssh dependency and instead have tailssh
register itself with ipnlocal when linked.

This makes tailssh.server a singleton, so we can have a global map of
all sessions.

Updates #3802

Change-Id: Iad5caec3a26a33011796878ab66b8e7b49339f29
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-15 13:45:39 -07:00
phirework
83c734a6e0
net/dns, util/publicdns: extract public DNS mapping into own package (#4405)
This extracts DOH mapping of known public DNS providers in
forwarder.go into its own package, to be consumed by other repos

Signed-off-by: Jenny Zhang <jz@tailscale.com>
2022-04-14 17:15:54 -04:00
James Tucker
8de7f9bff7 tailscaled: no longer tune gcpercent
Usage of userspace-networking is increasing, and the aggressive GC
tuning causes a significant reduction in performance in that mode.

Signed-off-by: James Tucker <james@tailscale.com>
2022-04-14 11:41:45 -07:00
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>
2022-04-14 11:55:35 -04:00
Maisem Ali
c87ed52ad4 cmd/tailscale: add id-token subcommand
RELNOTE=Initial support for getting OIDC ID Tokens

Updates tailscale/corp#4347

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-04-12 12:04:04 -07:00
Brad Fitzpatrick
3ae701f0eb net/tsaddr, wgengine/netstack: add IPv6 range that forwards to site-relative IPv4
This defines a new magic IPv6 prefix, fd7a:115c:a1e0:b1a::/64, a
subset of our existing /48, where the final 32 bits are an IPv4
address, and the middle 32 bits are a user-chosen "site ID". (which
must currently be 0000:00xx; the top 3 bytes must be zero for now)

e.g., I can say my home LAN's "site ID" is "0000:00bb" and then
advertise its 10.2.0.0/16 IPv4 range via IPv6, like:

    tailscale up --advertise-routes=fd7a:115c:a1e0:b1a::bb:10.2.0.0/112

(112 being /128 minuse the /96 v6 prefix length)

Then people in my tailnet can:

     $ curl '[fd7a:115c:a1e0:b1a::bb:10.2.0.230]'
     <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" ....

Updates #3616, etc

RELNOTE=initial support for TS IPv6 addresses to route v4 "via" specific nodes

Change-Id: I9b49b6ad10410a24b5866b9fbc69d3cae1f600ef
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-04-11 17:26:07 -07:00
David Eger
f992749b98 cmd/tailscale: Add file get --loop flag.
To "automatically receive taildrop files to my Downloads directory,"
user currently has to run 'tailscale file get' in a loop.  Make
it easy to do this without shell.

Updates: #2312

Signed-off-by: David Eger <david.eger@gmail.com>
2022-04-11 17:23:08 -07:00
Xiaochao Dong (@damnever)
7d97800d52 cmd/tailscale: make web mode preserve URL scheme in Synology redirect
Signed-off-by: Xiaochao Dong (@damnever) <the.xcdong@gmail.com>
2022-04-08 06:18:13 -07:00
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>
2022-04-07 19:03:18 -07:00
James Tucker
c6ac29bcc4
wgengine/netstack: disable refsvfs2 leak tracking (#4378)
In addition an envknob (TS_DEBUG_NETSTACK_LEAK_MODE) now provides access
to set leak tracking to more useful values.

Fixes #4309

Signed-off-by: James Tucker <james@tailscale.com>
2022-04-07 17:21:45 -07:00
Xe Iaso
55161b3d92
cmd/mkpkg: use package flag (#4373)
Also removes getopt

Signed-off-by: Xe <xe@tailscale.com>
2022-04-07 16:38:33 -04:00
Xe Iaso
be861797b4
cmd/mkpkg: add name argument (#4372)
* shell.nix: rename goimports to gotools

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

* cmd/mkpkg: allow specifying description and name in flag args

Signed-off-by: Xe <xe@tailscale.com>
2022-04-07 16:05:04 -04:00
oliverpool
0b273e1857 cmd/tailscale: drop special exit code 125 for gokrazy
No needed since gokrazy doesn't restart successful processes anymore: https://github.com/gokrazy/gokrazy/pull/127

Signed-off-by: Olivier Charvin <git@olivier.pfad.fr>
2022-04-06 06:21:44 -07:00
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>
2022-03-26 21:07:01 -07:00
Brad Fitzpatrick
753f1bfad4 cmd/tailscale: write fewer known_hosts, resolve ssh host to FQDN early
Updates #3802

Change-Id: Ic44fa2e6661a9c046e725c04fa6b8213d3d4d2b2
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-25 15:17:27 -07:00
Brad Fitzpatrick
df93158aac cmd/tailscale: generate known_hosts file for 'tailscale ssh'
Updates #3802

Change-Id: I7a0052392f000ee44fc8e719f6666756aab91f3d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-25 14:10:48 -07:00
Brad Fitzpatrick
8294915780 cmd/tailscale/cli: add start of 'ssh' subcommand
Updates #3802

Change-Id: Iabc07c00c7e4f43944cfe7daec8d2b66ac002289
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-24 21:43:42 -07:00
Brad Fitzpatrick
06fcf3b225 cmd/tailscale: make status --peers=false work earlier + in JSON mode
And return an error if you use non-flag arguments.

Change-Id: I0dd6c357eb5cabd0f17020f21ba86406aea21681
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-24 14:02:22 -07:00
Brad Fitzpatrick
5df12b9059 client/tailscale, cmd/tailscale, localapi: add 'tailscale nc' (actually)
Adds missing file from fc12cbfcd3.

GitHub was having issues earlier and it was all green because the
checks never actually ran, but the DCO non-Actions check at least did,
so "green" and I merged, not realizing it hadn't really run anything.

Updates #3802

Change-Id: I29f605eebe5336f1f3ca28ebb78b092dd99d9fd8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-24 11:36:34 -07:00
Brad Fitzpatrick
fc12cbfcd3 client/tailscale, cmd/tailscale, localapi: add 'tailscale nc'
This adds a "tailscale nc" command that acts a bit like "nc", but
dials out via tailscaled via localapi.

This is a step towards a "tailscale ssh", as we'll use "tailscale nc"
as a ProxyCommand for in some cases (notably in userspace mode).

But this is also just useful for debugging & scripting.

Updates #3802

RELNOTE=tailscale nc

Change-Id: Ia5c37af2d51dd0259d5833d80264d3ad5f68446a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-24 10:28:53 -07:00
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>
2022-03-23 13:04:48 -07:00
Brad Fitzpatrick
98984c1a9a cmd/proxy-to-grafana: fix package doc code snippet
Markdown isn't supported.

Change-Id: I8d9bb92260c164dc277afbce624f64fc2faf5125
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-23 12:43:41 -07:00
Nick O'Neill
5fa502b5dc
cmd/proxy-to-grafana: use grafana's authproxy to log in tailnet users (#4208)
Signed-off-by: Nick O'Neill <nick@tailscale.com>
2022-03-23 11:33:53 -07:00
Brad Fitzpatrick
f2041c9088 all: use strings.Cut even more
Change-Id: I943ce72c6f339589235bddbe10d07799c4e37979
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-19 13:02:38 -07:00
Aaron Klotz
6e91f872af net/tshttpproxy: ensure we pass the correct flags to WinHttpOpen on Win7 and Win8.0
The best flag to use on Win7 and Win8.0 is deprecated in Win8.1, so we resolve
the flag depending on OS version info.

Fixes https://github.com/tailscale/tailscale/issues/4201

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-03-18 11:05:02 -06:00
Brad Fitzpatrick
1db46919ab cmd/tailscaled: make build fail nicely on older Go versions
Due to a bug in Go (golang/go#51778), cmd/go doesn't warn about your
Go version being older than the go.mod's declared Go version in that
case that package loading fails before the build starts, such as when
you use packages that are only in the current version of Go, like our
use of net/netip.

This change works around that Go bug by adding build tags and a
pre-Go1.18-only file that will cause Go 1.17 and earlier to fail like:

    $ ~/sdk/go1.17/bin/go install ./cmd/tailscaled
    # tailscale.com/cmd/tailscaled
    ./required_version.go:11:2: undefined: you_need_Go_1_18_to_compile_Tailscale
    note: module requires Go 1.18

Change-Id: I39f5820de646703e19dde448dd86a7022252f75c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-18 08:25:51 -07:00
Josh Bleecher Snyder
0868329936 all: use any instead of interface{}
My favorite part of generics.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2022-03-17 11:35:09 -07:00
Josh Bleecher Snyder
997b19545b syncs: use TryLock and TryRLock instead of unsafe
The docs say:

Note that while correct uses of TryLock do exist, they are rare,
and use of TryLock is often a sign of a deeper problem in a particular use of mutexes.

Rare code! Or bad code! Who can tell!

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2022-03-17 10:57:41 -07:00
Brad Fitzpatrick
ead16b24ec cmd/tailscaled: fail early with nice error on macOS with go1.18
Due to golang/go#51759

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-17 10:41:50 -07:00
Denton Gentry
d8953bf2ba cmd/derpprobe: don't alert for smaller failures.
There is a Cosmic Background level of DERP Unreachability,
with individual nodes or regions becoming unreachable briefly
and returning a short time later. This is due to hosting provider
outages or just the Internet sloshing about.

Returning a 500 error pages a human. Being awoken at 3am for
a transient error is annoying.

For relatively small levels of badness don't page a human,
just post to Slack. If the outage impacts a significant fraction
of the DERP fleet, then page a human.

Signed-off-by: Denton Gentry <dgentry@tailscale.com>
2022-03-16 18:22:22 -07:00
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>
2022-03-16 16:10:29 -07:00
Brad Fitzpatrick
1f22507c06 version: use Go 1.18's git stamping as default implementation
No more manual version bumps!

Fixes #81

Change-Id: I3a9e544a7248f0b83bcbacbaabbc4dabc435e62d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-16 14:53:51 -07:00
Josh Bleecher Snyder
26021b07ec control/controlclient: only build certstore-related code with the Tailscale Go toolchain
The certstore code is impacted by golang/go#51726.
The Tailscale Go toolchain fork contains a temporary workaround,
so it can compile it. Once the upstream toolchain can compile certstore,
presumably in Go 1.18.1, we can revert this change.

Note that depaware runs with the upstream toolchain.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2022-03-16 12:45:28 -07:00
Josh Bleecher Snyder
1b57b0380d wgengine/magicsock: remove final alloc from ReceiveFrom
And now that we don't have to play escape analysis and inlining games,
simplify the code.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2022-03-16 12:45:28 -07:00
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>
2022-03-16 12:45:28 -07:00
David Eger
5be42c0af1 cmd/tailscale: add file get options for dealing with existing files
A new flag --conflict=(skip|overwrite|rename) lets users specify
what to do when receiving files that match a same-named file in
the target directory.

Updates #3548

Signed-off-by: David Eger <david.eger@gmail.com>
2022-03-16 12:05:41 -07:00
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>
2022-03-12 17:57:07 -08:00
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>
2022-03-11 12:16:10 -08:00
Aaron Klotz
f8a4df66de cmd/tailscale/cli, ipn: move exit node IP parsing and validation from cli into prefs.
We need to be able to provide the ability for the GUI clients to resolve and set
the exit node IP from an untrusted string, thus enabling the ability to specify
that information via enterprise policy.

This patch moves the relevant code out of the handler for `tailscale up`,
into a method on `Prefs` that may then be called by GUI clients.

We also update tests accordingly.

Updates https://github.com/tailscale/corp/issues/4239

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-03-10 10:51:05 -07:00
Joonas Kuorilehto
c1b3500a05 cmd/tailscale: allow use of flags in gokrazy
Enable use of command line arguments with tailscale cli on gokrazy. Before
this change using arguments like "up" would cause tailscale cli to be
repeatedly restarted by gokrazy process supervisor.

We never want to have gokrazy restart tailscale cli, even if user would
manually start the process.

Expected usage is that user creates files:

flags/tailscale.com/cmd/tailscale/flags.txt:

    up

flags/tailscale.com/cmd/tailscaled/flags.txt:

    --statedir=/perm/tailscaled/
    --tun=userspace-networking

Then tailscale prints URL for user to log in with browser.

Alternatively it should be possible to use up with auth key to allow
unattended gokrazy installs.

Signed-off-by: Joonas Kuorilehto <joneskoo@derbian.fi>
2022-03-09 12:30:32 -08:00
Maisem Ali
06c147d848 ssh/tailssh: create login sessions for new connections
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-03-08 21:47:19 -08:00
Brad Fitzpatrick
740e3c006c cmd/derper: add --stun-port flag
And flesh out docs on the --http-port flag.

Change-Id: If9d42665f67409082081cb9a25ad74e98869337b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-08 07:19:33 -08:00
Maisem Ali
0f31a0fc76 control/controlclient: add Noise client
Updates #3488

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-03-07 15:43:19 -08:00
Brad Fitzpatrick
f18bb6397b cmd/tailscale: tell gokrazy to not manage the CLI as a daemon
In the future we'll probably want to run the "tailscale web"
server instead, but for now stop the infinite restart loop.

See https://gokrazy.org/userguide/process-interface/ for details.

Updates #1866

Change-Id: I4133a5fdb859b848813972620495865727fe397a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-01 20:35:18 -08:00
Brad Fitzpatrick
db85384f9c cmd/tailscaled: default to userspace-networking mode on gokrazy, set paths
One of the current few steps to run Tailscale on gokrazy is to
specify the --tun=userspace-networking flag:

    https://gokrazy.org/userguide/install/tailscale/

Instead, make it the default for now. Later we can change the
default to kernel mode if available and fall back to userspace
mode like Synology, once #391 is done.

Likewise, set default paths for Gokrazy, as its filesystem hierarchy
is not the Linux standard one. Instead, use the conventional paths as
documented at https://gokrazy.org/userguide/install/tailscale/.

Updates #1866

RELNOTE=default to userspace-networking mode on gokrazy

Change-Id: I3766159a294738597b4b30629d2860312dbb7609
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-03-01 20:34:45 -08:00
Brad Fitzpatrick
55095df644 net/interfaces: get Linux default route from netlink as fallback
If it's in a non-standard table, as it is on Unifi UDM Pro, apparently.

Updates #4038 (probably fixes, but don't have hardware to verify)

Change-Id: I2cb9a098d8bb07d1a97a6045b686aca31763a937
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-28 19:57:34 -08:00
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>
2022-02-28 13:23:33 -08:00
Dmytro Shynkevych
d9a7205be5 net/tstun: set link speed to SPEED_UNKNOWN
Fixes #3933.

Signed-off-by: Dmytro Shynkevych <dm.shynk@gmail.com>
2022-02-27 23:11:35 -08:00
Brad Fitzpatrick
4686224e5a cmd/tailscaled: add a no-op test for profiling init-time memory allocs
Turns out we're pretty good already at init-time work in tailscaled.
The regexp/syntax shows up but it's hard to get rid of that; zstd even
uses regexp. *shrug*

Change-Id: I856aca056dcb7489f5fc22ef07f55f34ddf19bd6
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-24 14:58:12 -08:00
Brad Fitzpatrick
4cbdc84d27 cmd/tailscaled/childproc: add be-child registration mechanism
For ssh and maybe windows service babysitter later.

Updates #3802

Change-Id: I7492b98df98971b3fb72d148ba92c2276cca491f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-24 14:20:20 -08:00
Brad Fitzpatrick
c9eca9451a ssh: make it build on darwin
For local dev testing initially. Product-wise, it'll probably only be
workable on the two unsandboxed builds.

Updates #3802

Change-Id: Ic352f966e7fb29aff897217d79b383131bf3f92b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-24 13:00:45 -08:00
Brad Fitzpatrick
7d897229d9 net/dns: ignore permission errors on Synology DSM7 for now
Updates #4017

Change-Id: Ia7fd4df47588c010dea8e63d88f397cc8eb748e5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-23 10:13:53 -08:00
Brad Fitzpatrick
29279b34fa cmd/tailscale: make configure-host on Synology also add CAP_NET_RAW
Updates #4012

Change-Id: Ic45b5709a73b4f1cd466823e177b52d1d20ba84e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-23 07:56:38 -08:00
Aaron Klotz
e31d68d64e hostinfo: use the sentinel value set by the MSI installer to detect MSI package type
The MSI installer sets a special sentinel value that we can use to detect it.

I also removed the code that bails out when the installation path is not
`Program Files`, as both the NSIS and MSI installers permit the user to install
to a different path.

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2022-02-22 12:48:20 -07:00
Maisem Ali
c7a8f0992d ipn/ipnlocal: use views for Peer.PrimaryRoutes and Peer.Tags
RELNOTE=`tailscale status --json` now shows Tags and PrimaryRoutes

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-02-22 10:09:02 -08:00
Brad Fitzpatrick
e921e1b02d cmd/tailscale: add "tailscale debug hostinfo" subcommand
Change-Id: Ifa09364d42e0516fdf80feddaf33c95880228049
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-20 08:06:37 -08:00
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>
2022-02-18 13:40:39 -08:00
Josh Bleecher Snyder
94409db7e2 cmd/tailscale: rewrite --authkey to --auth-key
That way humans don't have to remember which is correct.

RELNOTE=--auth-key is the new --authkey, but --authkey still works

Updates tailscale/corp#3486

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2022-02-17 10:00:46 -08:00
Maisem Ali
72d8672ef7 tailcfg: make Node.Hostinfo a HostinfoView
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-02-16 12:55:57 -08:00
Brad Fitzpatrick
1b87e025e9 ssh/tailssh: move SSH code from wgengine/netstack to this new package
Still largely incomplete, but in a better home now.

Updates #3802

Change-Id: I46c5ffdeb12e306879af801b06266839157bc624
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-15 12:21:01 -08:00
Brad Fitzpatrick
c988bd6ed1 net/dns/resolvconffile: unify three /etc/resolv.conf parsers into new package
Change-Id: I2120893ca802d12f1bd0407d49077d3672627d33
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-14 20:55:57 -08:00
Brad Fitzpatrick
8fe503057d net/netutil: unify two oneConnListeners into a new package
I was about to add a third copy, so unify them now instead.

Change-Id: I3b93896aa1249b1250a6b1df4829d57717f2311a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-13 14:57:27 -08:00
Brad Fitzpatrick
a80cef0c13 cmd/derper: fix regression from bootstrap DNS optimization
The commit b9c92b90db earlier today
caused a regression of serving an empty map always, as it was
JSON marshalling an atomic.Value instead of the DNS entries map
it just built.

Change-Id: I9da3eeca132c6324462dedeaa7d002908557384b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-02-11 15:28:38 -08:00
Josh Bleecher Snyder
84046d6f7c Revert "cmd/derper: stop setting content header in handleBootstrapDNS"
Didn't help enough. We are setting another header anyway. Restore it.

This reverts commit 60abeb027b.

Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
2022-02-11 14:15:28 -08:00