Upcoming work on incremental netmap change handling will require some
replumbing of which subsystems get notified about what. Done naively,
it could break "tailscale status --json" visibility later. To make sure
I understood the flow of all the updates I was rereading the status code
and realized parts of ipnstate.Status were being populated by the wrong
subsystems.
The engine (wireguard) and magicsock (data plane, NAT traveral) should
only populate the stuff that they uniquely know. The WireGuard bits
were fine but magicsock was populating stuff stuff that LocalBackend
could've better handled, so move it there.
Updates #1909
Change-Id: I6d1b95d19a2d1b70fbb3c875fac8ea1e169e8cb0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This PR addresses a number of the follow ups from PR #8491 that were written
after getting merged.
Updates #8489
Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
It was in SelfNode.Hostinfo anyway. The redundant copy was just
costing us an allocation per netmap (a Hostinfo.Clone).
Updates #1909
Change-Id: Ifac568aa5f8054d9419828489442a0f4559bc099
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Adds ability to start Funnel in the foreground and stream incoming
connections. When foreground process is stopped, Funnel is turned
back off for the port.
Exampe usage:
```
TAILSCALE_FUNNEL_V2=on tailscale funnel 8080
```
Updates #8489
Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
And optimize the Persist setting a bit, allocating later and only mutating
fields when there's been a Node change.
Updates #1909
Change-Id: Iaddfd9e88ef76e1d18e8d0a41926eb44d0955312
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
In b987b2ab18 (2021-01-12) when we introduced sharing we mapped
the sharer to the userid at a low layer, mostly to fix the display of
"tailscale status" and the client UIs, but also some tests.
The commit earlier today, 7dec09d169, removed the 2.5yo option
to let clients disable that automatic mapping, as clearly we were never
getting around to it.
This plumbs the Sharer UserID all the way to ipnstatus so the CLI
itself can choose to print out the Sharer's identity over the node's
original owner.
Then we stop mangling Node.User and let clients decide how they want
to render things.
To ease the migration for the Windows GUI (which currently operates on
tailcfg.Node via the NetMap from WatchIPNBus, instead of PeerStatus),
a new method Node.SharerOrUser is added to do the mapping of
Sharer-else-User.
Updates #1909
Updates tailscale/corp#1183
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
I screwed this up in 58a4fd43d as I expected. I even looked out for
cases like this (because this always happens) and I still missed
it. Vet doesn't flag these because they're not the standard printf
funcs it knows about. TODO: make our vet recognize all our
"logger.Logf" types.
Updates #8948
Change-Id: Iae267d5f81da49d0876b91c0e6dc451bf7dcd721
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Make it just a views.Slice[netip.Prefix] instead of its own named type.
Having the special case led to circular dependencies in another WIP PR
of mine.
Updates #8948
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Now a nodeAttr: ForceBackgroundSTUN, DERPRoute, TrimWGConfig,
DisableSubnetsIfPAC, DisableUPnP.
Kept support for, but also now a NodeAttr: RandomizeClientPort.
Removed: SetForceBackgroundSTUN, SetRandomizeClientPort (both never
used, sadly... never got around to them. But nodeAttrs are better
anyway), EnableSilentDisco (will be a nodeAttr later when that effort
resumes).
Updates #8923
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
We would only look for duplicate profiles when a new login
occurred but when using `--force-reauth` we could switch
users which would end up with duplicate profiles.
Updates #7726
Signed-off-by: Maisem Ali <maisem@tailscale.com>
There are a few situations where we end up with duplicate profiles.
Add tests to identify those situations, fix in followup.
Updates #7726
Signed-off-by: Maisem Ali <maisem@tailscale.com>
It was being modified in two places in Direct for the auth routine
and then in LocalBackend when a new NetMap was received. This was
confusing, so make Direct also own changes to Persist when a new
NetMap is received.
Updates #7726
Signed-off-by: Maisem Ali <maisem@tailscale.com>
This adds the capability to pad disco ping message payloads to reach a
specified size. It also plumbs it through to the tailscale ping -size
flag.
Disco pings used for actual endpoint discovery do not use this yet.
Updates #311.
Signed-off-by: salman <salman@tailscale.com>
Co-authored-by: Val <valerie@tailscale.com>
Rather than make each ipn.StateStore implementation guard against
useless writes (a write of the same value that's already in the
store), do writes via a new wrapper that has a fast path for the
unchanged case.
This then fixes profileManager's flood of useless writes to AWS SSM,
etc.
Updates #8785
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
The revoke-keys command allows nodes with tailnet lock keys
to collaborate to erase the use of a compromised key, and remove trust
in it.
Signed-off-by: Tom DNetto <tom@tailscale.com>
Updates ENG-1848
While our `shouldStartDomainRenewal` check is correct, `getCertPEM`
would always bail if the existing cert is not expired. Add the same
`shouldStartDomainRenewal` check to `getCertPEM` to make it proceed with
renewal when existing certs are still valid but should be renewed.
The extra check is expensive (ARI request towards LetsEncrypt), so cache
the last check result for 1hr to not degrade `tailscale serve`
performance.
Also, asynchronous renewal is great for `tailscale serve` but confusing
for `tailscale cert`. Add an explicit flag to `GetCertPEM` to force a
synchronous renewal for `tailscale cert`.
Fixes#8725
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
This change introduces a new subcommand, `exit-node`, along with a
subsubcommand of `list` and a `--filter` flag.
Exit nodes without location data will continue to be displayed when
`status` is used. Exit nodes with location data will only be displayed
behind `exit-node list`, and in status if they are the active exit node.
The `filter` flag can be used to filter exit nodes with location data by
country.
Exit nodes with Location.Priority data will have only the highest
priority option for each country and city listed. For countries with
multiple cities, a <Country> <Any> option will be displayed, indicating
the highest priority node within that country.
Updates tailscale/corp#13025
Signed-off-by: Charlotte Brandhorst-Satzkorn <charlotte@tailscale.com>
Define PeerCapabilty and PeerCapMap as the new way of sending down
inter-peer capability information.
Previously, this was unstructured and you could only send down strings
which got too limiting for certain usecases. Instead add the ability
to send down raw JSON messages that are opaque to Tailscale but provide
the applications to define them however they wish.
Also update accessors to use the new values.
Updates #4217
Signed-off-by: Maisem Ali <maisem@tailscale.com>
When using a custom http port like 8080, this was resulting in a
constructed hostname of `host.tailnet.ts.net:8080.tailnet.ts.net` when
looking up the serve handler. Instead, strip off the port before adding
the MagicDNS suffix.
Also use the actual hostname in `serve status` rather than the literal
string "host".
Fixes#8635
Signed-off-by: Will Norris <will@tailscale.com>
The server hasn't sent it in ages.
Updates #cleanup
Change-Id: I9695ab0f074ec6fb006e11faf3cdfc5ca049fbf8
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
ScrubbedGoroutineDump previously only returned the stacks of all
goroutines. I also want to be able to use this for only the current
goroutine's stack. Add a bool param to support both ways.
Updates tailscale/corp#5149
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Adds a `Tailscale-Headers-Info` header whenever the `Tailscale-User-`
headers are filled from the HTTP proxy handler.
Planning on hooking this shorturl up to KB docs about the header
values (i.e. what's a login name vs. display name) and security
considerations to keep in mind while using these headers - notibly
that they can also be filled from external requests that do not hit
tailscaled.
Updates https://github.com/tailscale/tailscale/issues/6954
Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
Trying to SSH when SELinux is enforced results in errors like:
```
➜ ~ ssh ec2-user@<ip>
Last login: Thu Jun 1 22:51:44 from <ip2>
ec2-user: no shell: Permission denied
Connection to <ip> closed.
```
while the `/var/log/audit/audit.log` has
```
type=AVC msg=audit(1685661291.067:465): avc: denied { transition } for pid=5296 comm="login" path="/usr/bin/bash" dev="nvme0n1p1" ino=2564 scontext=system_u:system_r:unconfined_service_t:s0 tcontext=unconfined_u:unconfined_r:unconfined_t:s0 tclass=process permissive=0
```
The right fix here would be to somehow install the appropriate context when
tailscale is installed on host, but until we figure out a way to do that
stop using the `login` cmd in these situations.
Updates #4908
Signed-off-by: Maisem Ali <maisem@tailscale.com>
Adds two new headers to HTTP serve proxy:
- `Tailscale-User-Login`: Filled with requester's login name.
- `Tailscale-User-Name`: Filled with requester's display name.
These headers only get filled when the SrcAddr is associated with
a non-tagged (i.e. user-owned) node within the client's Tailnet.
The headers are passed through empty when the request originated
from another tailnet, or the public internet (via funnel).
Updates https://github.com/tailscale/tailscale/issues/6954
Signed-off-by: Sonia Appasamy <sonia@tailscale.com>
* tka: provide verify-deeplink local API endpoint
Fixes https://github.com/tailscale/tailscale/issues/8302
Signed-off-by: Andrea Gottardo <andrea@tailscale.com>
Address code review comments
Signed-off-by: Andrea Gottardo <andrea@tailscale.com>
Address code review comments by Ross
Signed-off-by: Andrea Gottardo <andrea@tailscale.com>
* Improve error encoding, fix logic error
Signed-off-by: Andrea Gottardo <andrea@tailscale.com>
---------
Signed-off-by: Andrea Gottardo <andrea@tailscale.com>
The netstack code had a bunch of logic to figure out if the LocalBackend should handle an
incoming connection and then would call the function directly on LocalBackend. Move that
logic to LocalBackend and refactor the methods to return conn handlers.
Updates #cleanup
Signed-off-by: Maisem Ali <maisem@tailscale.com>
