Commit Graph

608 Commits (fbfc3b7e5192ce332b8c162543d47ce502953d71)

Author SHA1 Message Date
Jordan Whited 8b47322acc
wgengine/magicsock: implement probing of UDP path lifetime (#10844)
This commit implements probing of UDP path lifetime on the tail end of
an active direct connection. Probing configuration has two parts -
Cliffs, which are various timeout cliffs of interest, and
CycleCanStartEvery, which limits how often a probing cycle can start,
per-endpoint. Initially a statically defined default configuration will
be used. The default configuration has cliffs of 10s, 30s, and 60s,
with a CycleCanStartEvery of 24h. Probing results are communicated via
clientmetric counters. Probing is off by default, and can be enabled
via control knob. Probing is purely informational and does not yet
drive any magicsock behaviors.

Updates #540

Signed-off-by: Jordan Whited <jordan@tailscale.com>
10 months ago
Charlotte Brandhorst-Satzkorn ce4553b988 appc,ipn/ipnlocal: optimize preference adjustments when routes update
This change allows us to perform batch modification for new route
advertisements and route removals. Additionally, we now handle the case
where newly added routes are covered by existing ranges.

This change also introduces a new appctest package that contains some
shared functions used for testing.

Updates tailscale/corp#16833

Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
10 months ago
James Tucker 8250582fe6 ipn/ipnlocal: make app connector configuration concurrent
If there are routes changes as a side effect of an app connector
configuration update, the connector configuration may want to reenter a
lock, so must be started asynchronously.

Updates tailscale/corp#16833
Signed-off-by: James Tucker <james@tailscale.com>
10 months ago
James Tucker 24df1ef1ee appc,ipn/ipnlocal,types/appctype: implement control provided routes
Control can now send down a set of routes along with the domains, and
the routes will be advertised, with any newly overlapped routes being
removed to reduce the size of the routing table.

Fixes tailscale/corp#16833
Signed-off-by: James Tucker <james@tailscale.com>
10 months ago
Will Norris 236531c5fc ipn/ipnserver: always allow Windows SYSTEM user to connect
When establishing connections to the ipnserver, we validate that the
local user is allowed to connect.  If Tailscale is currently being
managed by a different user (primarily for multi-user Windows installs),
we don't allow the connection.

With the new device web UI, the inbound connection is coming from
tailscaled itself, which is often running as "NT AUTHORITY\SYSTEM".
In this case, we still want to allow the connection, even though it
doesn't match the user running the Tailscale GUI. The SYSTEM user has
full access to everything on the system anyway, so this doesn't escalate
privileges.

Eventually, we want the device web UI to run outside of the tailscaled
process, at which point this exception would probably not be needed.

Updates tailscale/corp#16393

Signed-off-by: Will Norris <will@tailscale.com>
10 months ago
Rhea Ghosh 4ce33c9758
taildrop: remove breaking abstraction layers for apple (#10728)
Removes the avoidFinalRename logic and all associated code as it is no longer required by the Apple clients.
Enables resume logic to be usable for Apple clients.

Fixes tailscale/corp#14772

Signed-off-by: Rhea Ghosh <rhea@tailscale.com>
11 months ago
James 'zofrex' Sanderson 10c595d962
ipn/ipnlocal: refresh node key without blocking if cap enabled (#10529)
Updates tailscale/corp#16016

Signed-off-by: James Sanderson <jsanderson@tailscale.com>
Co-authored-by: Maisem Ali <maisem@tailscale.com>
11 months ago
Andrew Dunham cae6edf485 ipn/ipnlocal: fix data race with capForcedNetfilter field
Updates #cleanup

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I1fdad454198d7ea4a898dbff3062818b0db35167
11 months ago
Andrew Lytvynov 2716250ee8
all: cleanup unused code, part 2 (#10670)
And enable U1000 check in staticcheck.

Updates #cleanup

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
11 months ago
James Tucker 0957258f84 appc,ipn: prevent undesirable route advertisements
Individual route advertisements that are covered by existing routes are
no longer advertised. If an upstream returns 0.0.0.0, 127.x, and other
common unwanted addresses those are also rejected.

Updates #16425
Signed-off-by: James Tucker <james@tailscale.com>
11 months ago
Andrew Dunham a661287c4b util/cmpx: remove code that's in the stdlib now
The cmpx.Compare function (and associated interface) are now available
in the standard library as cmp.Compare. Remove our version of it and use
the version from the standard library.

Updates #cleanup

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I4be3ac63d466c05eb7a0babb25cb0d41816fbd53
11 months ago
Andrew Lytvynov 945cf836ee
ipn: apply tailnet-wide default for auto-updates (#10508)
When auto-update setting in local Prefs is unset, apply the tailnet
default value from control. This only happens once, when we apply the
default (or when the user manually overrides it), tailnet default no
longer affects the node.

Updates #16244

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
11 months ago
Andrew Dunham 3ae562366b ipn/ipnlocal: fix usage of slices.Compact
Fixes #10595

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I4e96e9c43b8dedb5f88b03368c01b0e46723e15b
11 months ago
Adrian Dewhurst 86aa0485a6 ipn/ipnlocal, util/syspolicy: make run exit node a preference option
Previously, the "RunExitNode" policy merely controlled the visibility of
the "run as exit node" menu item, not the setting itself. This migrates
that setting to a preference option named "AdvertiseExitNode".

Updates ENG-2138

Change-Id: Ia6a125beb6b4563d380c6162637ce4088f1117a0
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
12 months ago
Adrian Dewhurst f706a3abd0 ipn/ipnlocal, util/syspolicy: add auto update policy
Due to the Sparkle preference naming convention, macsys already has a
policy key named "ApplyUpdates" that merely shows or hides the menu
item that controls if auto updates are installed, rather than directly
controlling the setting.

For other platforms, we are going to use "InstallUpdates" instead
because it seemed better than the other options that were considered.

Updates ENG-2127
Updates tailscale/corp#16247

Change-Id: Ia6a125beb6b4563d380c6162637ce4088f1117a0
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
12 months ago
Adrian Dewhurst 1a4d423328 ipn/ipnlocal: add additional syspolicy enforcement
This adds support for enforcing exit node LAN access, DNS and subnet
routes.

Adding new preference policies was getting repetitive, so this turns
some of the boilerplate into a table.

Updates tailscale/corp#15585
Updates ENG-2240

Change-Id: Iabd3c42b0ae120b3145fac066c5caa7fc4d67824
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
12 months ago
Adrian Dewhurst af32d1c120 ipn/ipnlocal: better enforce system policies
Previously, policies affected the default prefs for a new profile, but
that does not affect existing profiles. This change ensures that
policies are applied whenever preferences are loaded or changed, so a
CLI or GUI client that does not respect the policies will still be
overridden.

Exit node IP is dropped from this PR as it was implemented elsewhere
in #10172.

Fixes tailscale/corp#15585

Change-Id: Ide4c3a4b00a64e43f506fa1fab70ef591407663f
Signed-off-by: Adrian Dewhurst <adrian@tailscale.com>
12 months ago
Naman Sood 0a59754eda linuxfw,wgengine/route,ipn: add c2n and nodeattrs to control linux netfilter
Updates tailscale/corp#14029.

Signed-off-by: Naman Sood <mail@nsood.in>
12 months ago
Sonia Appasamy 7a4ba609d9 client/web: show features based on platform support
Hiding/disabling UI features when not available on the running
client.

Updates #10261

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
12 months ago
Claire Wang 8af503b0c5
syspolicy: add exit node related policies (#10172)
Adds policy keys ExitNodeID and ExitNodeIP.
Uses the policy keys to determine the exit node in preferences.
Fixes tailscale/corp#15683

Signed-off-by: Claire Wang <claire@tailscale.com>
12 months ago
Sonia Appasamy bc4e303846 ipn/ipnstate: add AllowedIPs to PeerStatus
Adds AllowedIPs to PeerStatus, allowing for easier lookup of the
routes allowed to be routed to a node. Will be using the AllowedIPs
of the self node from the web client interface to display approval
status of advertised routes.

Updates #10261

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
12 months ago
Andrew Lytvynov ac4b416c5b
cmd/tailscale,ipn/ipnlocal: pass available update as health message (#10420)
To be consistent with the formatting of other warnings, pass available
update health message instead of handling ClientVersion in he CLI.

Fixes #10312

Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
12 months ago
Tom DNetto 8a660a6513 ipn/ipnlocal: update hostinfo when app connector state is toggled
Updates: https://github.com/tailscale/corp/issues/16041
Signed-off-by: Tom DNetto <tom@tailscale.com>
12 months ago
Tom DNetto 611e0a5bcc appc,ipn/local: support wildcard when matching app-connectors
Updates: ENG-2453
Signed-off-by: Tom DNetto <tom@tailscale.com>
1 year ago
Marwan Sulaiman 2dc0645368 ipn/ipnlocal,cmd/tailscale: persist tailnet name in user profile
This PR starts to persist the NetMap tailnet name in SetPrefs so that tailscaled
clients can use this value to disambiguate fast user switching from one tailnet
to another that are under the same exact login. We will also try to backfill
this information during backend starts and profile switches so that users don't
have to re-authenticate their profile. The first client to use this new
information is the CLI in 'tailscale switch -list' which now uses text/tabwriter
to display the ID, Tailnet, and Account. Since account names are ambiguous, we
allow the user to pass 'tailscale switch ID' to specify the exact tailnet they
want to switch to.

Updates #9286

Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
1 year ago
Brad Fitzpatrick 3bd382f369 wgengine/magicsock: add DERP homeless debug mode for testing
In DERP homeless mode, a DERP home connection is not sought or
maintained and the local node is not reachable.

Updates #3363
Updates tailscale/corp#396

Change-Id: Ibc30488ac2e3cfe4810733b96c2c9f10a51b8331
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Sonia Appasamy 055394f3be ipn/ipnlocal: add mutex to webClient struct
Adds a new sync.Mutex field to the webClient struct, rather than
using the general LocalBackend mutex. Since webClientGetOrInit
(previously WebClientInit) gets called on every connection, we
want to avoid holding the lock on LocalBackend just to check if
the server is initialized.

Moves all web_client.go funcs over to using the webClient.mu field.

Updates tailscale/corp#14335

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
1 year ago
Will Norris 9b537f7c97 ipn: remove the preview-webclient node capability
Now that 1.54 has released, and the new web client will be included in
1.56, we can remove the need for the node capability. This means that
all 1.55 unstable builds, and then eventually the 1.56 build, will work
without setting the node capability.

The web client still requires the "webclient" user pref, so this does
NOT mean that the web client will be on by default for all devices.

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
1 year ago
Brad Fitzpatrick 1825d2337b
ipn/ipnlocal: respect ExitNodeAllowLANAccess on iOS (#10230)
Updates tailscale/corp#15783

Change-Id: I1082fbfff61a241ebd3b8275be0f45e329b67561

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
Joe Tsai 975c5f7684
taildrop: lazily perform full deletion scan after first taildrop use (#10137)
Simply reading the taildrop directory can pop up security dialogs
on platforms like macOS. Avoid this by only performing garbage collection
of partial and deleted files after the first received taildrop file,
which would have prompted the security dialog window.

Updates tailscale/corp#14772

Signed-off-by: Joe Tsai <joetsai@digital-static.net>
1 year ago
Jordan Whited e848736927
control/controlknobs,wgengine/magicsock: implement SilentDisco toggle (#10195)
This change exposes SilentDisco as a control knob, and plumbs it down to
magicsock.endpoint. No changes are being made to magicsock.endpoint
disco behavior, yet.

Updates #540

Signed-off-by: Jordan Whited <jordan@tailscale.com>
Co-authored-by: Brad Fitzpatrick <bradfitz@tailscale.com>
1 year ago
James Tucker c54d680682 ipn,tailconfig: clean up unreleased and removed app connector service
This was never released, and is replaced by HostInfo.AppConnector.

Updates tailscale/corp#15437
Signed-off-by: James Tucker <james@tailscale.com>
1 year ago
James Tucker 0b6636295e tailcfg,ipn/ipnlocal: add hostinfo field to replace service entry
Updates tailscale/corp#15437
Signed-off-by: James Tucker <james@tailscale.com>
1 year ago
James Tucker 45be37cb01 ipn/ipnlocal: ensure that hostinfo is updated on app connector preference changes
Some conditional paths may otherwise skip the hostinfo update, so kick
it off asynchronously as other code paths do.

Updates tailscale/corp#15437
Signed-off-by: James Tucker <james@tailscale.com>
1 year ago
Naman Sood e57fd9cda4
ipn/{ipnlocal,ipnstate,localapi}: add localapi endpoints for client self-update (#10188)
* ipn/{ipnlocal,ipnstate,localapi}: add localapi endpoints for client self-update

Updates #10187.

Signed-off-by: Naman Sood <mail@nsood.in>

* depaware

Updates #10187.

Signed-off-by: Naman Sood <mail@nsood.in>

* address review feedback

Signed-off-by: Naman Sood <mail@nsood.in>

---------

Signed-off-by: Naman Sood <mail@nsood.in>
1 year ago
Jordan Whited 12d5c99b04
client/tailscale,ipn/{ipnlocal,localapi}: check UDP GRO config (#10071)
Updates tailscale/corp#9990

Signed-off-by: Jordan Whited <jordan@tailscale.com>
1 year ago
Will Norris 09de240934 ipn/ipnlocal: allow connecting to local web client
The local web client has the same characteristic as tailscale serve, in
that it needs a local listener to allow for connections from the local
machine itself when running in kernel networking mode.

This change renames and adapts the existing serveListener to allow it to
be used by the web client as well.

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
1 year ago
Tom DNetto 11a20f371a ipn/ipnlocal: fix nil control client panic while updating TKA head
As part of tailnet-lock netmap processing, the LocalBackend mutex
is unlocked so we can potentially make a network call. Its possible
(during shutdown or while the control client is being reset) for
b.cc to become nil before the lock is picked up again.

Fixes: #9554
Signed-off-by: Tom DNetto <tom@tailscale.com>
1 year ago
Tom DNetto 3496d62ed3 ipn/ipnlocal: add empty address to the app-connector localNets set
App connectors handle DNS requests for app domains over PeerAPI,
but a safety check verifies the requesting peer has at least permission
to send traffic to 0.0.0.0:53 (or 2000:: for IPv6) before handling the DNS
request. The correct filter rules are synthesized by the coordination server
and sent down, but the address needs to be part of the 'local net' for the
filter package to even bother checking the filter rules, so we set them here.
See: https://github.com/tailscale/corp/issues/11961 for more information.

Signed-off-by: Tom DNetto <tom@tailscale.com>
Updates: ENG-2405
1 year ago
Will Norris 6b956b49e0 client/web: add some security checks for full client
Require that requests to servers in manage mode are made to the
Tailscale IP (either ipv4 or ipv6) or quad-100. Also set various
security headers on those responses.  These might be too restrictive,
but we can relax them as needed.

Allow requests to /ok (even in manage mode) with no checks. This will be
used for the connectivity check from a login client to see if the
management client is reachable.

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
1 year ago
Will Norris 658971d7c0 ipn/ipnlocal: serve web client on quad100 if enabled
if the user pref and nodecap for the new web client are enabled, serve
the client over requests to 100.100.100.100.  Today, that is just a
static page that lists the local Tailcale IP addresses.

For now, this will render the readonly full management client, with an
"access" button that sends the user through check mode.  After
completing check mode, they will still be in the read-only view, since
they are not accessing the client over Tailscale.

Instead, quad100 should serve the lobby client that has a "manage"
button that will open the management client on the Tailscale IP (and
trigger check mode). That is something we'll fix in a subsequent PR in
the web client code itself.

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
1 year ago
James Tucker f27b2cf569 appc,cmd/sniproxy,ipn/ipnlocal: split sniproxy configuration code out of appc
The design changed during integration and testing, resulting in the
earlier implementation growing in the appc package to be intended now
only for the sniproxy implementation. That code is moved to it's final
location, and the current App Connector code is now renamed.

Updates tailscale/corp#15437

Signed-off-by: James Tucker <james@tailscale.com>
1 year ago
Sonia Appasamy aa5af06165 ipn/ipnlocal: include web client port in setTCPPortsIntercepted
Updates tailscale/corp#14335

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
1 year ago
Sonia Appasamy b370274b29 ipn/ipnlocal: pull CapabilityPreviewWebClient into webClientAtomicBool
Now uses webClientAtomicBool as the source of truth for whether the web
client should be running in tailscaled, with it updated when either the
RunWebClient pref or CapabilityPreviewWebClient node capability changes.

This avoids requiring holding the LocalBackend lock on each call to
ShouldRunWebClient to check for the CapabilityPreviewWebClient value.

Updates tailscale/corp#14335

Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
1 year ago
James Tucker 228a82f178 ipn/ipnlocal,tailcfg: add AppConnector service to HostInfo when configured
Updates tailscale/corp#15437

Signed-off-by: James Tucker <james@tailscale.com>
1 year ago
James Tucker 6ad54fed00 appc,ipn/ipnlocal: add App Connector domain configuration from mapcap
The AppConnector is now configured by the mapcap from the control plane.

Updates tailscale/corp#15437

Signed-off-by: James Tucker <james@tailscale.com>
1 year ago
James Tucker b48b7d82d0 appc,ipn/ipnlocal,net/dns/resolver: add App Connector wiring when enabled in prefs
An EmbeddedAppConnector is added that when configured observes DNS
responses from the PeerAPI. If a response is found matching a configured
domain, routes are advertised when necessary.

The wiring from a configuration in the netmap capmap is not yet done, so
while the connector can be enabled, no domains can yet be added.

Updates tailscale/corp#15437

Signed-off-by: James Tucker <james@tailscale.com>
1 year ago
Will Norris e7482f0df0 ipn/ipnlocal: prevent deadlock on WebClientShutdown
WebClientShutdown tries to acquire the b.mu lock, so run it in a go
routine so that it can finish shutdown after setPrefsLockedOnEntry is
finished. This is the same reason b.sshServer.Shutdown is run in a go
routine.

Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
1 year ago
James Tucker 0ee4573a41 ipn/ipnlocal: fix small typo
Updates #cleanup
Signed-off-by: James Tucker <james@tailscale.com>
1 year ago
Will Norris 66c7af3dd3 ipn: replace web client debug flag with node capability
Updates tailscale/corp#14335

Signed-off-by: Will Norris <will@tailscale.com>
1 year ago