I'd started to do this in the earlier ts_omit_server PR but
decided to split it into this separate PR.
Updates #17128
Change-Id: Ief8823a78d1f7bbb79e64a5cab30a7d0a5d6ff4b
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This is step 4 of making syspolicy a build-time feature.
This adds a policyclient.Get() accessor to return the correct
implementation to use: either the real one, or the no-op one. (A third
type, a static one for testing, also exists, so in general a
policyclient.Client should be plumbed around and not always fetched
via policyclient.Get whenever possible, especially if tests need to use
alternate syspolicy)
Updates #16998
Updates #12614
Change-Id: Iaf19670744a596d5918acfa744f5db4564272978
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
dnstype.Resolver adds a boolean UseWithExitNode that controls
whether the resolver should be used in tailscale exit node contexts
(not wireguard exit nodes). If UseWithExitNode resolvers are found,
they are installed as the global resolvers. If no UseWithExitNode resolvers
are found, the exit node resolver continues to be installed as the global
resolver. Split DNS Routes referencing UseWithExitNode resolvers are also
installed.
Updates #8237Fixestailscale/corp#30906Fixestailscale/corp#30907
Signed-off-by: Michael Ben-Ami <mzb@tailscale.com>
We already show a message in the menu itself, this just adds it to the
CLI output as well.
Updates #1708
Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
Pass a local.Client to systray.Run, so we can use the existing global
localClient in the cmd/tailscale CLI. Add socket flag to cmd/systray.
Updates #1708
Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
Make it possible to dump the eventbus graph as JSON or DOT to both debug
and document what is communicated via the bus.
Updates #15160
Signed-off-by: Claus Lensbøl <claus@tailscale.com>
Replace the existing systray_start counter metrics with a
systray_running gauge metrics.
This also adds an IncrementGauge method to local client to parallel
IncrementCounter. The LocalAPI handler supports both, we've just never
added a client method for gauges.
Updates #1708
Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
This means the caller does not have to remember to close the reader, and avoids
having to duplicate the logic to decode JSON into events.
Updates #15160
Change-Id: I20186fabb02f72522f61d5908c4cc80b86b8936b
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
We already present a health warning about this, but it is easy to miss
on a server when blackholing traffic makes it unreachable.
In addition to a health warning, present a risk message when exit node
is enabled.
Example:
```
$ tailscale up --exit-node=lizard
The following issues on your machine will likely make usage of exit nodes impossible:
- interface "ens4" has strict reverse-path filtering enabled
- interface "tailscale0" has strict reverse-path filtering enabled
Please set rp_filter=2 instead of rp_filter=1; see https://github.com/tailscale/tailscale/issues/3310
To skip this warning, use --accept-risk=linux-strict-rp-filter
$
```
Updates #3310
Signed-off-by: Anton Tolchanov <anton@tailscale.com>
RELNOTE=Fix CSRF errors in the client Web UI
Replace gorilla/csrf with a Sec-Fetch-Site based CSRF protection
middleware that falls back to comparing the Host & Origin headers if no
SFS value is passed by the client.
Add an -origin override to the web CLI that allows callers to specify
the origin at which the web UI will be available if it is hosted behind
a reverse proxy or within another application via CGI.
Updates #14872
Updates #15065
Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>
Bump to latest 22.x LTS release for node as the 18.x line is going EOL this month.
Updates https://github.com/tailscale/corp/issues/27737
Signed-off-by: Mario Minardi <mario@tailscale.com>
This fixes a bug in the local client where the DELETE request was
not being sent correctly. The route was missing a slash before the url
and this now matches the switch profile function.
Signed-off-by: Esteban-Bermudez <esteban@bermudezaguirre.com>
To avoid ephemeral port / TIME_WAIT exhaustion with high --count
values, and to eventually detect leaked connections in tests. (Later
the memory network will register a Cleanup on the TB to verify that
everything's been shut down)
Updates tailscale/corp#27636
Change-Id: Id06f1ae750d8719c5a75d871654574a8226d2733
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This shouldn't be necessary, but while we're continuing to figure out
the root cause, this is better than having to restart the app or switch
profiles on the command line.
Updates #15528
Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
Add the golang-image-ico package, which is an incredibly small package
to handle the ICO container format with PNG inside. Some profile photos
look quite pixelated when displayed at this size, but it's better than
nothing, and any Windows support is just a bonus anyway.
Updates #1708
Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
This makes the web server running inside tailscaled on 100.100.100.100:80 support requests with `Host: 100.100.100.100:80` and its IPv6 equivalent.
Prior to this commit, the web server replied to such requests with a redirect to the node's Tailscale IP:5252.
Fixes https://github.com/tailscale/tailscale/issues/14415
Signed-off-by: Alex Klyubin <klyubin@gmail.com>
Fix the order of the CSRF handlers (HTTP plaintext context setting,
_then_ enforcement) in the construction of the web UI server. This
resolves false-positive "invalid Origin" 403 exceptions when attempting
to update settings in the web UI.
Add unit test to exercise the CSRF protection failure and success cases
for our web UI configuration.
Updates #14822
Updates #14872
Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>
When LocalAPI returns an AccessDeniedError, display a message in the
menu and hide or disable most other menu items. This currently includes
a placeholder KB link which I'll update if we end up using something
different.
I debated whether to change the app icon to indicate an error, but opted
not to since there is actually nothing wrong with the client itself and
Tailscale will continue to function normally. It's just that the systray
app itself is in a read-only state.
Updates #1708
Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
This method uses `path.Join` to build the URL. Turns out with 1.24 this
started stripping consecutive "/" characters, so "http://..." in baseURL
becomes "http:/...".
Also, `c.Tailnet` is a function that returns `c.tailnet`. Using it as a
path element would encode as a pointer instead of the tailnet name.
Finally, provide a way to prevent escaping of path elements e.g. for `?`
in `acl?details=1`.
Updates #15015
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
It was moved in f57fa3cbc30e.
Updates tailscale/corp#22748
Change-Id: I19f965e6bded1d4c919310aa5b864f2de0cd6220
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
localclient_aliases.go was missing some package level functions from client/local.
This adds them.
Updates tailscale/corp#22748
Signed-off-by: Percy Wegmann <percy@tailscale.com>
In this PR, we update client/tailscale.LocalClient to allow sending requests with an optional X-Tailscale-Reason
header. We then update ipn/ipnserver.{actor,Server} to retrieve this reason, if specified, and use it to determine
whether ipnauth.Disconnect is allowed when the AlwaysOn.OverrideWithReason policy setting is enabled.
For now, we log the reason, along with the profile and OS username, to the backend log.
Finally, we update LocalBackend to remember when a disconnect was permitted and do not reconnect automatically
unless the policy changes.
Updates tailscale/corp#26146
Signed-off-by: Nick Khyl <nickk@tailscale.com>
For 9dd6af1f6d
Update client/web and safeweb to correctly signal to the csrf middleware
whether the request is being served over TLS. This determines whether
Origin and Referer header checks are strictly enforced. The gorilla
library previously did not enforce these checks due to a logic bug based
on erroneous use of the net/http.Request API. The patch to fix this also
inverts the library behavior to presume that every request is being
served over TLS, necessitating these changes.
Updates tailscale/corp#25340
Signed-off-by: Patrick O'Doherty <patrick@tailscale.com>
Co-authored-by: Patrick O'Doherty <patrick@tailscale.com>
Removing the advanced options collapsible from the web client login for
now ahead of our next client release.
Updates https://github.com/tailscale/tailscale/issues/14568
Signed-off-by: Mario Minardi <mario@tailscale.com>
We update client/tailscale.LocalClient to allow specifying an optional Transport
(http.RoundTripper) for LocalAPI HTTP requests, and implement one that injects
an ipnauth.TestActor via request headers. We also add several functions and types
to make testing an ipn/ipnserver.Server possible (or at least easier).
We then use these updates to write basic tests for ipnserver.Server,
ensuring it works on non-Windows platforms and correctly sets and unsets
the LocalBackend's current user when a Windows user connects and disconnects.
We intentionally omit tests for switching between different OS users
and will add them in follow-up commits.
Updates tailscale/corp#25804
Signed-off-by: Nick Khyl <nickk@tailscale.com>
Change the type of the `IPv4` and `IPv6` members in the `nodeData`
struct to be `netip.Addr` instead of `string`.
We were previously calling `String()` on this struct, which returns
"invalid IP" when the `netip.Addr` is its zero value, and passing this
value into the aforementioned attributes.
This caused rendering issues on the frontend
as we were assuming that the value for `IPv4` and `IPv6` would be falsy
in this case.
The zero value for a `netip.Addr` marshalls to an empty string instead
which is the behaviour we want downstream.
Updates https://github.com/tailscale/tailscale/issues/14568
Signed-off-by: Mario Minardi <mario@tailscale.com>
