Commit Graph

4524 Commits

Author SHA1 Message Date
Mihai Parparita
82e82d9b7a net/dns/resolver: remove unused responseTimeout constant
Timeout is now enforced elsewhere, see discussion in https://github.com/tailscale/tailscale/pull/4408#discussion_r970092333.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-09-13 18:12:11 -07:00
nyghtowl
0f16640546 net/dns: fix fmt error on Revert print
Fixes #5619

Signed-off-by: nyghtowl <warrick@tailscale.com>
2022-09-13 16:36:15 -07:00
Joe Tsai
aa0064db4d
logpolicy: add NewWithConfigPath (#5625)
The version.CmdName implementation is buggy such that it does not correctly
identify the binary name if it embeds other go binaries.
For now, add a NewWithConfigPath API that allows the caller to explicitly
specify this information.

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
2022-09-13 16:30:40 -07:00
Brad Fitzpatrick
45a3de14a6 cmd/tailscaled, tailcfg, hostinfo: add flag to disable logging + support
As noted in #5617, our documented method of blocking log.tailscale.io
DNS no longer works due to bootstrap DNS.

Instead, provide an explicit flag (--no-logs-no-support) and/or env
variable (TS_NO_LOGS_NO_SUPPORT=true) to explicitly disable logcatcher
uploads. It also sets a bit on Hostinfo to say that the node is in that
mode so we can end any support tickets from such nodes more quickly.

This does not yet provide an easy mechanism for users on some
platforms (such as Windows, macOS, Synology) to set flags/env. On
Linux you'd used /etc/default/tailscaled typically. Making it easier
to set flags for other platforms is tracked in #5114.

Fixes #5617
Fixes tailscale/corp#1475

Change-Id: I72404e1789f9e56ec47f9b7021b44c025f7a373a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-13 11:47:36 -07:00
Tom DNetto
f6da2220d3 wgengine: set fwmark masks in netfilter & ip rules
This change masks the bitspace used when setting and querying the fwmark on packets. This allows
tailscaled to play nicer with other networking software on the host, assuming the other networking
software is also using fwmarks & a different mask.

IPTables / mark module has always supported masks, so this is safe on the netfilter front.

However, busybox only gained support for parsing + setting masks in 1.33.0, so we make sure we
arent such a version before we add the "/<mask>" syntax to an ip rule command.

Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-09-13 09:52:26 -07:00
Mihai Parparita
b22b565947 cmd/tsconnect: allow xterm.js terminal options to be passed in
Allows clients to use a custom theme and other xterm.js customization
options.

Fixes #5610

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-09-12 16:39:02 -07:00
David Anderson
7c49db02a2 wgengine/magicsock: don't use BPF receive when SO_MARK doesn't work.
Fixes #5607

Signed-off-by: David Anderson <danderson@tailscale.com>
2022-09-12 15:05:44 -07:00
Mihai Parparita
c312e0d264 cmd/tsconnect: allow hostname to be specified
The auto-generated hostname is nice as a default, but there are cases
where the client has a more specific name that it can generate.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-09-12 14:26:50 -07:00
Mihai Parparita
11fcc3a7b0 cmd/tsconnect: fix xterm.js link opening not working when rendered into another window
The default WebLinksAddon handler uses window.open(), but that gets blocked
by the popup blocker when the event being handled is another window. We
instead need to invoke open() on the window that the event was triggered
in.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-09-12 13:54:27 -07:00
Will Norris
f03a63910d cmd/tailscale: add licenses link to web UI
The `tailscale web` UI is the primary interface for Synology and Home
Assistant users (and perhaps others), so is the logical place to put our
open source license notices.  I don't love adding things to what is
currently a very minimal UI, but I'm not sure of a better option.

Updates tailscale/corp#5780

Signed-off-by: Will Norris <will@tailscale.com>
2022-09-12 12:06:44 -07:00
Brad Fitzpatrick
024257ef5a net/stun: unmap IPv4 addresses in 16 byte STUN replies
Updates #5602

Change-Id: I2276ad2bfb415b9ff52f37444f2a1d74b38543b1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-12 12:03:27 -07:00
Andrew Dunham
eb5939289c
cmd/derper: add /generate_204 endpoint (#5601)
For captive portal detection.

Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2022-09-12 13:43:50 -04:00
Brad Fitzpatrick
16939f0d56 hostinfo: detect being run in a container in more ways
Change-Id: I038ff7705ba232e6cf8dcc9775357ef708d43762
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-12 07:02:01 -07:00
Brad Fitzpatrick
d5e7e3093d hostinfo, tailcfg: split Hostinfo.OSVersion into separate fields
Stop jamming everything into one string.

Fixes #5578

Change-Id: I7dec8d6c073bddc7dc5f653e3baf2b4bf6b68378
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-11 21:40:28 -07:00
Brad Fitzpatrick
708b7bff3d net/dns/publicdns: also support NextDNS DoH query parameters
The plan has changed. Doing query parameters rather than path +
heades. NextDNS added support for query parameters.

Updates #2452

Change-Id: I4783c0a06d6af90756d9c80a7512644ba702388c
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-11 09:01:03 -07:00
Brad Fitzpatrick
81bc4992f2 net/netns: add TS_FORCE_LINUX_BIND_TO_DEVICE for Linux
For debugging a macOS-specific magicsock issue. macOS runs in
bind-to-interface mode always. This lets me force Linux into the same
mode as macOS, even if the Linux kernel supports SO_MARK, as it
usually does.

Updates #2331 etc

Change-Id: Iac9e4a7429c1781337e716ffc914443b7aa2869d
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-10 18:33:30 -07:00
Brad Fitzpatrick
f3ce1e2536 util/mak: deprecate NonNil, add type-safe NonNilSliceForJSON, NonNilMapForJSON
And put the rationale in the name too to save the callers the need for a comment.

Change-Id: I090f51b749a5a0641897ee89a8fb2e2080c8b782
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-10 12:19:22 -07:00
Brad Fitzpatrick
e7376aca25 net/dns/resolver: set DNS-over-HTTPS Accept and User-Agent header on requests
Change-Id: I14b821771681e70405a507f43229c694159265ff
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-10 08:57:26 -07:00
Tom DNetto
ed2b8b3e1d wgengine/router: reduce routing rule priority for openWRT + mwan3
Fixes #3659

Signed-off-by: Tom DNetto <tom@tailscale.com>
Co-authored-by: Ian Foster <ian@vorsk.com>
2022-09-09 18:21:24 -07:00
Brad Fitzpatrick
c14361e70e net/dns/publicdns: support NextDNS DoH URLs with path parameters
Updates #2452

Change-Id: I0f1c34cc1672e87e7efd0adfe4088724dd0de3ed
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-09 14:16:23 -07:00
Mihai Parparita
b302742137 cmd/tsconnect: enable web links addon in the terminal
More user friendly, and as a side-effect we handle SSH check mode better,
since the URL that's output is now clickable.

Fixes #5247

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-09-09 11:05:01 -07:00
Mihai Parparita
62035d6485 cmd/tsconnect: switch back to public version of xterm npm package
xtermjs/xterm.js#4069 was merged and published (in 5.0.0-beta.58),
no need for the fork added by 01e6565e8a.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-09-09 10:50:43 -07:00
Brad Fitzpatrick
89fee056d3 cmd/derper: add robots.txt to disallow all
Fixes #5565

Change-Id: I5626ec2116d9be451caef651dc301b7a82e35550
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-09 10:29:46 -07:00
License Updater
3ed366ee1e licenses: update android licenses
Signed-off-by: License Updater <noreply@tailscale.com>
2022-09-09 09:14:22 -07:00
Brad Fitzpatrick
2aade349fc net/dns, types/dnstypes: update some comments, tests for DoH
Clarify & verify that some DoH URLs can be sent over tailcfg
in some limited cases.

Updates #2452

Change-Id: Ibb25db77788629c315dc26285a1059a763989e24
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-08 17:16:13 -07:00
Brad Fitzpatrick
58abae1f83 net/dns/{publicdns,resolver}: add NextDNS DoH support
NextDNS is unique in that users create accounts and then get
user-specific DNS IPs & DoH URLs.

For DoH, the customer ID is in the URL path.

For IPv6, the IP address includes the customer ID in the lower bits.

For IPv4, there's a fragile "IP linking" mechanism to associate your
public IPv4 with an assigned NextDNS IPv4 and that tuple maps to your
customer ID.

We don't use the IP linking mechanism.

Instead, NextDNS is DoH-only. Which means using NextDNS necessarily
shunts all DNS traffic through 100.100.100.100 (programming the OS to
use 100.100.100.100 as the global resolver) because operating systems
can't usually do DoH themselves.

Once it's in Tailscale's DoH client, we then connect out to the known
NextDNS IPv4/IPv6 anycast addresses.

If the control plane sends the client a NextDNS IPv6 address, we then
map it to the corresponding NextDNS DoH with the same client ID, and
we dial that DoH server using the combination of v4/v6 anycast IPs.

Updates #2452

Change-Id: I3439d798d21d5fc9df5a2701839910f5bef85463
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-08 12:50:32 -07:00
Mihai Parparita
01e6565e8a cmd/tsconnect: temporarily switch to xterm.js fork that handles popup windows
Allows other work to be unblocked while xtermjs/xterm.js#4069 is worked
through.

To enable testing the popup window handling, the standalone app allows
opening of SSH sessions in new windows by holding down the alt key
while pressing the SSH button.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-09-08 09:30:52 -07:00
Mihai Parparita
2400ba28b1 cmd/tsconnect: handle terminal resizes before the SSH session is created
Store the requested size is a struct field, and use that when actually
creating the SSH session.

Fixes #5567

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-09-08 09:30:52 -07:00
Brad Fitzpatrick
2266b59446 go.toolchain.rev: bump to Go 1.19.1
See https://github.com/tailscale/go/pull/34

Change-Id: I56806358cd1be4a2b8f509883e47c93083d82bdf
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-07 22:13:01 -07:00
Brad Fitzpatrick
ad7546fb9f tailcfg: fix broken test from comment change
Fix broken build from 255c0472fb

"Oh, that's safe to commit because most tests are passing and it's
just a comment change!", I thought, forgetting I'd added a test that
parses its comments.

Change-Id: Iae93d595e06fec48831215a98adbb270f3bfda05
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-07 22:03:38 -07:00
Brad Fitzpatrick
255c0472fb tailcfg: reformat CurrentCapabilityVersion to be a bulleted list
gofmt in 1.19 is now opinionated about structured text formatting in
comments. It did not like our style and kept fighting us whenever we
changed these lines. Give up the fight and be a bulleted list for it.

See:

* https://go.dev/doc/go1.19#go-doc and
* https://go.dev/doc/comment

Updates #4872

Change-Id: Ifae431218471217168c003ab3b4e03c394ca8105
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-07 21:53:16 -07:00
License Updater
c5adc5243c licenses: update win/apple licenses
Signed-off-by: GitHub <noreply@github.com>
2022-09-07 14:28:24 -07:00
Andrew Dunham
c9961b8b95
cmd/derper: filter out useless HTTP error logs (#5563)
These errors aren't actionable and just fill up logs with useless data.
See the following Go issue for more details:
  https://golang.org/issue/26918

Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2022-09-07 16:31:06 -04:00
License Updater
8fdf137571 licenses: update tailscale{,d} licenses
Signed-off-by: License Updater <noreply@tailscale.com>
2022-09-06 19:19:15 -07:00
Colin Adler
9c8bbc7888 wgengine/magicsock: fix panic in http debug server
Fixes an panic in `(*magicsock.Conn).ServeHTTPDebug` when the
`recentPongs` ring buffer for an endpoint wraps around.

Signed-off-by: Colin Adler <colin1adler@gmail.com>
2022-09-06 15:02:07 -07:00
Andrew Dunham
9240f5c1e2
wgengine/netstack: only accept connection after dialing (#5503)
If we accept a forwarded TCP connection before dialing, we can
erroneously signal to a client that we support IPv6 (or IPv4) without
that actually being possible. Instead, we only complete the client's TCP
handshake after we've dialed the outbound connection; if that fails, we
respond with a RST.

Updates #5425 (maybe fixes!)

Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2022-09-06 16:04:10 -04:00
Mihai Parparita
2f702b150e cmd/tsconnect: add dev-pkg command for two-sided development
Allows imports of the NPM package added by 1a093ef482
to be replaced with import("http://localhost:9090/pkg/pkg.js"), so that
changes can be made in parallel to both the module and code that uses
it (without any need for NPM publishing or even building of the package).

Updates #5415

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2022-09-06 12:42:58 -07:00
James Tucker
672c2c8de8 wgengine/magicsock: add filter to ignore disco to old/other ports
Incoming disco packets are now dropped unless they match one of the
current bound ports, or have a zero port*.

The BPF filter passes all packets with a disco header to the raw packet
sockets regardless of destination port (in order to avoid needing to
reconfigure BPF on rebind).

If a BPF enabled node has just rebound, due to restart or rebind, it may
receive and reply to disco ping packets destined for ports other than
those which are presently bound. If the pong is accepted, the pinging
node will now assume that it can send WireGuard traffic to the pinged
port - such traffic will not reach the node as it is not destined for a
bound port.

*The zero port is ignored, if received. This is a speculative defense
and would indicate a problem in the receive path, or the BPF filter.
This condition is allowed to pass as it may enable traffic to flow,
however it will also enable problems with the same symptoms this patch
otherwise fixes.

Fixes #5536

Signed-off-by: James Tucker <james@tailscale.com>
2022-09-06 12:25:04 -07:00
James Tucker
be140add75 wgengine/magicsock: fix regression in initial bind for js
1f959edeb0 introduced a regression for JS
where the initial bind no longer occurred at all for JS.

The condition is moved deeper in the call tree to avoid proliferation of
higher level conditions.

Updates #5537

Signed-off-by: James Tucker <james@tailscale.com>
2022-09-06 12:23:44 -07:00
James Tucker
1f959edeb0 wgengine/magicksock: remove nullability of RebindingUDPConns
Both RebindingUDPConns now always exist. the initial bind (which now
just calls rebind) now ensures that bind is called for both, such that
they both at least contain a blockForeverConn. Calling code no longer
needs to assert their state.

Signed-off-by: James Tucker <james@tailscale.com>
2022-09-06 12:08:31 -07:00
Brad Fitzpatrick
56f6fe204b go.mod, wgengine/wgint: bump wireguard-go
For b51010ba13

Change-Id: Ibf767dfad98aef7e9f0505d91c0d26f924e046d5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-06 11:34:30 -07:00
Andrew Dunham
f52a659076
net/dnsfallback: allow setting log function (#5550)
This broke a test in corp that enforces we don't use the log package.

Signed-off-by: Andrew Dunham <andrew@tailscale.com>
2022-09-06 11:19:50 -04:00
Andrew Dunham
b8596f2a2f
net/dnsfallback: cache most recent DERP map on disk (#5545)
This is especially helpful as we launch newer DERPs over time, and older
clients have progressively out-of-date static DERP maps baked in. After
this, as long as the client has successfully connected once, it'll cache
the most recent DERP map it knows about.

Resolves an in-code comment from @bradfitz

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
2022-09-05 14:36:30 -04:00
Maisem Ali
060ecb010f docs/k8s: make run.sh handle SIGINT
It was previously using jobcontrol to achieve this, but that apparently
doesn't work when there is no tty. This makes it so that it directly
handles SIGINT and SIGTERM and passes it on to tailscaled. I tested this
works on a Digital Ocean K8s cluster.

Fixes #5512

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2022-09-04 15:50:02 -07:00
Brad Fitzpatrick
02de34fb10 cmd/derper: add flag to run derper in bootstrap-dns-only mode
Change-Id: Iba128e94464afa605bc9df1f06a91d296380eed0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-03 19:51:00 -07:00
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>
2022-09-02 16:29:49 -07:00
Andrew Dunham
a0bae4dac8
cmd/derper: add support for unpublished bootstrap DNS entries (#5529)
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
2022-09-02 14:48:30 -04:00
Tom DNetto
9132b31e43 tailcfg: refactor/implement wire structs for TKA
Signed-off-by: Tom DNetto <tom@tailscale.com>
2022-09-02 10:29:46 -07:00
Kris Brandow
19008a3023 net/dnscache: use net/netip
Removes usage of net.IP and net.IPAddr where possible from net/dnscache.

Fixes #5282

Signed-off-by: Kris Brandow <kris.brandow@gmail.com>
2022-09-01 17:54:19 -04:00
Brad Fitzpatrick
ba3cc08b62 cmd/tailscale/cli: add backwards compatibility 'up' processing for legacy client
Updates tailscale/corp#6781

Change-Id: I843fc810cbec0140d423d65db81e90179d6e0fa5
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2022-09-01 14:21:48 -07:00