Commit Graph

1014 Commits (3ae7140690cee3d3454f977957f209a4b00b14a0)

Author SHA1 Message Date
Brad Fitzpatrick 1e876a3c1d ipn/ipnlocal: fix fmt format arg type mismatch in log line
It was printing like "v0xxxxxxxx" after version.Long became a func
in 8b2ae47c31.

Fixes #7976

Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
James Tucker 095d3edd33 ipn/ipnlocal: reenable profile tests on Windows
This fix does not seem ideal, but the test infrastructure using a local
goos doesn't seem to avoid all of the associated challenges, but is
somewhat deeply tied to the setup.

The core issue this addresses for now is that when run on Windows there
can be no code paths that attempt to use an invalid UID string, which on
Windows is described in [1].

For the goos="linux" tests, we now explicitly skip the affected
migration code if runtime.GOOS=="windows", and for the Windows test we
explicitly use the running users uid, rather than just the string
"user1". We also now make the case where a profile exists and has
already been migrated a non-error condition toward the outer API.

Updates #7876

[1] https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/manage/understand-security-identifiers

Signed-off-by: James Tucker <jftucker@gmail.com>
2 years ago
Marwan Sulaiman ce11c82d51 ipn/store/awsstore: persist state with intelligent tiering
Fixes #6784

This PR makes it so that we can persist the tailscaled state with
intelligent tiering which increases the capacity from 4kb to 8kb

Signed-off-by: Marwan Sulaiman <marwan@tailscale.com>
2 years ago
Mihai Parparita 7330aa593e all: avoid repeated default interface lookups
On some platforms (notably macOS and iOS) we look up the default
interface to bind outgoing connections to. This is both duplicated
work and results in logspam when the default interface is not available
(i.e. when a phone has no connectivity, we log an error and thus cause
more things that we will try to upload and fail).

Fixed by passing around a netmon.Monitor to more places, so that we can
use its cached interface state.

Fixes #7850
Updates #7621

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Mihai Parparita 4722f7e322 all: move network monitoring from wgengine/monitor to net/netmon
We're using it in more and more places, and it's not really specific to
our use of Wireguard (and does more just link/interface monitoring).

Also removes the separate interface we had for it in sockstats -- it's
a small enough package (we already pull in all of its dependencies
via other paths) that it's not worth the extra complexity.

Updates #7621
Updates #7850

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Andrew Dunham 3ede3aafe4 ipn/localapi: also verify STUN queries work in 'debug derp'
Updates #6526

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I274b7ed53ee0be3fb94fdb00cafe06a1d676e1cf
2 years ago
Andrew Dunham f85dc6f97c
ci: add more lints (#7909)
This is a follow-up to #7905 that adds two more linters and fixes the corresponding findings. As per the previous PR, this only flags things that are "obviously" wrong, and fixes the issues found.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I8739bdb7bc4f75666a7385a7a26d56ec13741b7c
2 years ago
Maisem Ali c3ef6fb4ee ipn/ipnlocal: handle masquerade addresses in PeerAPI
Without this, the peer fails to do anything over the PeerAPI if it
has a masquerade address.

```
Apr 19 13:58:15 hydrogen tailscaled[6696]: peerapi: invalid request from <ip>:58334: 100.64.0.1/32 not found in self addresses
```

Updates #8020

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Mihai Parparita d0906cda97 net/sockstats: expose debug info
Exposes some internal state of the sockstats package via the C2N and
PeerAPI endpoints, so that it can be used for debugging. For now this
includes the estimated radio on percentage and a second-by-second view
of the times the radio was active.

Also fixes another off-by-one error in the radio on percentage that
was leading to >100% values (if n seconds have passed since we started
to monitor, there may be n + 1 possible seconds where the radio could
have been on).

Updates tailscale/corp#9230

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Andrew Dunham 280255acae
various: add golangci-lint, fix issues (#7905)
This adds an initial and intentionally minimal configuration for
golang-ci, fixes the issues reported, and adds a GitHub Action to check
new pull requests against this linter configuration.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I8f38fbc315836a19a094d0d3e986758b9313f163
2 years ago
Mihai Parparita 9a655a1d58 net/dnsfallback: more explicitly pass through logf function
Redoes the approach from #5550 and #7539 to explicitly pass in the logf
function, instead of having global state that can be overridden.

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
James Tucker 8dec1a8724 .github/workflows: reenable Windows CI, disable broken tests
We accidentally switched to ./tool/go in
4022796484 which resulted in no longer
running Windows builds, as this is attempting to run a bash script.

I was unable to quickly fix the various tests that have regressed, so
instead I've added skips referencing #7876, which we need to back and
fix.

Updates #7262
Updates #7876

Signed-off-by: James Tucker <james@tailscale.com>
2 years ago
Mihai Parparita cef0a474f8 ipn/ipnlocal: check that sockstatLogger is available in c2n endpoint
Otherwise there may be a panic if it's nil (and the control side of
the c2n call will just time out).

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Mihai Parparita 03b2c44a21 ipn/ipnlocal: more explicitly say if sockstats are not available
Makes it more apparent in the PeerAPI endpoint that the client was
not built with the appropriate toolchain or build tags.

Updates tailscale/corp#9230

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Brad Fitzpatrick 2c0bda6e2e ssh/tailssh: make Tailscale SSH work on gokrazy
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
2 years ago
shayne ba4e58f429
cmd/tailscale/cli: do not allow turning Funnel on while shields-up (#7770) 2 years ago
Will Norris 6d5c3c1637 ipn: prefer allow/denylist terminology
Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Will Norris 5a3da3cd7f ipn: add sockstat logger to stable builds
This makes the sockstat logger available on all builds, but only enables
it by default for unstable.  For stable builds, the logger must be
explicitly enabled via C2N component logger.

Updates tailscale/corp#9230
Updates #3363

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Aaron Klotz 90fd04cbde ipn/ipnlocal, util/winutil/policy: modify Windows profile migration to load legacy prefs from within tailscaled
I realized that a lot of the problems that we're seeing around migration and
LocalBackend state can be avoided if we drive Windows pref migration entirely
from within tailscaled. By doing it this way, tailscaled can automatically
perform the migration as soon as the connection with the client frontend is
established.

Since tailscaled is already running as LocalSystem, it already has access to
the user's local AppData directory. The profile manager already knows which
user is connected, so we simply need to resolve the user's prefs file and read
it from there.

Of course, to properly migrate this information we need to also check system
policies. I moved a bunch of policy resolution code out of the GUI and into
a new package in util/winutil/policy.

Updates #7626

Signed-off-by: Aaron Klotz <aaron@tailscale.com>
2 years ago
Mihai Parparita e3cb8cc88d ipn/ipnlocal: automatically upload sockstats logs when the period ends
Avoids needing a separate c2n call to get the logs uploaded.

Updates tailscale/corp#9230

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Andrew Dunham 3b39ca9017 ipn/ipnlocal: update comment in SetComponentDebugLogging
Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I8c36a62079dce77fc81b9cdfb5fe723b007218ba
2 years ago
Maisem Ali e0d291ab8a ipn/store: add support for stores to hook into a custom dialer
For stores like k8s secrets we need to dial out to the k8s API as though Tailscale
wasn't running. The issue currently only manifests when you try to use an exit node
while running inside a k8s cluster and are trying to use Kubernetes secrets as the
backing store.

This doesn't address cmd/containerboot, which I'll do in a follow up.

Updates #7695

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Andrew Dunham c98652c333 doctor/permissions: add new check to print process permissions
Since users can run tailscaled in a variety of ways (root, non-root,
non-root with process capabilities on Linux), this check will print the
current process permissions to the log to aid in debugging.

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ida93a206123f98271a0c664775d0baba98b330c7
2 years ago
Will Norris 7c99210e68 log: allow toggling sockstat logs via c2n component logging
Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
shayne 43f7ec48ca
funnel: change references from alpha to beta (#7613)
Updates CLI and docs to reference Funnel as beta

Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2 years ago
shayne 3177ccabe5
ipn/ipnlocal: [serve/funnel] use actual SrcAddr as X-Forwarded-For (#7600)
The reverse proxy was sending the ingressd IPv6 down as the
X-Forwarded-For. This update uses the actual remote addr.

Updates tailscale/corp#9914

Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2 years ago
shayne 7908b6d616
ipn/ipnlocal: [serve] Trim mountPoint prefix from proxy path (#7334)
This change trims the mountPoint from the request URL path before
sending the request to the reverse proxy.

Today if you mount a proxy at `/foo` and request to
`/foo/bar/baz`, we leak the `mountPoint` `/foo` as part of the request
URL's path.

This fix makes removed the `mountPoint` prefix from the path so
proxied services receive requests as if they were running at the root
(`/`) path.

This could be an issue if the app generates URLs (in HTML or otherwise)
and assumes `/path`. In this case, those URLs will 404.

With that, I still think we should trim by default and not leak the
`mountPoint` (specific to Tailscale) into whatever app is hosted.
If it causes an issue with URL generation, I'd suggest looking at configuring
an app-specific path prefix or running Caddy as a more advanced
solution.

Fixes: #6571

Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2 years ago
Maisem Ali 7300b908fb logpolicy: split out DialContext into a func
Updates tailscale/corp#10030

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 9e81db50f6 ipn/ipnlocal: use atomicfile.WriteFile in certFileStore
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 8a11f76a0d ipn/ipnlocal: fix cert storage in Kubernetes
We were checking against the wrong directory, instead if we
have a custom store configured just use that.

Fixes #7588
Fixes #7665

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali ec90522a53 ipn/ipnlocal: also store ACME keys in the certStore
We were not storing the ACME keys in the state store, they would always
be stored on disk.

Updates #7588

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 9d8b7a7383 ipn/store/kubestore: handle "/" in ipn.StateKeys
Kubernetes doesn't allow slashes as keys in secrets, replace them with "__".

This shows up in the kubernetes-operator now that tsnet sets resets the ServeConfig
at startup.

Fixes #7662

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Will Norris 57a008a1e1 all: pass log IDs as the proper type rather than strings
This change focuses on the backend log ID, which is the mostly commonly
used in the client.  Tests which don't seem to make use of the log ID
just use the zero value.

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Will Norris f13b8bf0cf log: use logtail to log and upload sockstat logs
Switch to using logtail for logging sockstat logs. Always log locally
(on supported platforms), but disable automatic uploading.  Change
existing c2n sockstats request to trigger upload to log server and
return log ID.

Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Mihai Parparita 731688e5cc ipn/localapi: add endpoint for adding debug log entries
Allows the iOS and macOS apps to include their frontend logs when
generating bug reports (tailscale/corp#9982).

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Mihai Parparita 97b6d3e917 sockstats: remove per-interface stats from Get
They're not needed for the sockstats logger, and they're somewhat
expensive to return (since they involve the creation of a map per
label). We now have a separate GetInterfaces() method that returns
them instead (which we can still use in the PeerAPI debug endpoint).

If changing sockstatlog to sample at 10,000 Hz (instead of the default
of 10Hz), the CPU usage would go up to 59% on a iPhone XS. Removing the
per-interface stats drops it to 20% (a no-op implementation of Get that
returns a fixed value is 16%).

Updates tailscale/corp#9230
Updates #3363

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Will Norris 6ef2105a8e log/sockstatlog: only start once; don't copy ticker
Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Will Norris 09e0ccf4c2 ipn: add c2n endpoint for sockstats logs
Signed-off-by: Will Norris <will@tailscale.com>
2 years ago
Will Norris a1d9f65354 ipn,log: add logger for sockstat deltas
Signed-off-by: Will Norris <will@tailscale.com>
Co-authored-by: Melanie Warrick <warrick@tailscale.com>
2 years ago
Maisem Ali 5e8a80b845 all: replace /kb/ links with /s/ equivalents
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali 3ff44b2307 ipn: add Funnel port check from nodeAttr
Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Maisem Ali ccdd534e81 tsnet: add ListenFunnel
This lets a tsnet binary share a server out over Tailscale Funnel.

Signed-off-by: David Crawshaw <crawshaw@tailscale.com>
Signed-off-by: Maisem Ali <maisem@tailscale.com>
Signed-off-by: Shayne Sweeney <shayne@tailscale.com>
2 years ago
Andrew Dunham f0d6228c52 ipn/localapi: flesh out the 'debug derp' checks
Updates #6526

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: Ic18d9ff288b9c7b8d5ab1bd77dd59693cd776cc4
2 years ago
Mihai Parparita b64d78d58f sockstats: refactor validation to be opt-in
Followup to #7499 to make validation a separate function (
GetWithValidation vs. Get). This way callers that don't need it don't
pay the cost of a syscall per active TCP socket.

Also clears the conn on close, so that we don't double-count the stats.

Also more consistently uses Go doc comments for the exported API of the
sockstats package.

Updates tailscale/corp#9230
Updates #3363

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Maisem Ali 1e72de6b72 ipn/ipnlocal: remove WIP restriction for Tailscale SSH on macOS
It kinda works fine now on macOS with the recent fixes in 0582829 and
 5787989d.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Tom DNetto 3471fbf8dc cmd/tailscale: surface node-key for locked out tailnet-lock peers
Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Maisem Ali b797f773c7 ipn/ipnlocal: add support for funnel in tsnet
Previously the part that handled Funnel connections was not
aware of any listeners that tsnet.Servers might have had open
so it would check against the ServeConfig and fail.

Adding a ServeConfig for a TCP proxy was also not suitable in this
scenario as that would mean creating two different listeners and have
one forward to the other, which really meant that you could not have
funnel and tailnet-only listeners on the same port.

This also introduces the ipn.FunnelConn as a way for users to identify
whether the call is coming over funnel or not. Currently it only holds
the underlying conn and the target as presented in the "Tailscale-Ingress-Target"
header.

Signed-off-by: Maisem Ali <maisem@tailscale.com>
2 years ago
Tom DNetto ce99474317 all: implement preauth-key support with tailnet lock
Signed-off-by: Tom DNetto <tom@tailscale.com>
2 years ago
Mihai Parparita f4f8ed98d9 sockstats: add validation for TCP socket stats
We can use the TCP_CONNECTION_INFO getsockopt() on Darwin to get
OS-collected tx/rx bytes for TCP sockets. Since this API is not available
for UDP sockets (or on Linux/Android), we can't rely on it for actual
stats gathering.

However, we can use it to validate the stats that we collect ourselves
using read/write hooks, so that we can be more confident in them. We
do need additional hooks from the Go standard library (added in
tailscale/go#59) to be able to collect them.

Updates tailscale/corp#9230
Updates #3363

Signed-off-by: Mihai Parparita <mihai@tailscale.com>
2 years ago
Andrew Dunham be107f92d3 wgengine/magicsock: track per-endpoint changes in ringbuffer
This change adds a ringbuffer to each magicsock endpoint that keeps a
fixed set of "changes"–debug information about what updates have been
made to that endpoint.

Additionally, this adds a LocalAPI endpoint and associated
"debug peer-status" CLI subcommand to fetch the set of changes for a given
IP or hostname.

Updates tailscale/corp#9364

Signed-off-by: Andrew Dunham <andrew@du.nham.ca>
Change-Id: I34f726a71bddd0dfa36ec05ebafffb24f6e0516a
2 years ago