It's an unnecessary nuisance having it. We go out of our way to redact
it in so many places when we don't even need it there anyway.
Updates #12639
Change-Id: I5fc72e19e9cf36caeb42cf80ba430873f67167c3
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Remove the State enum (StateNew, StateNotAuthenticated, etc.) from
controlclient and replace it with two explicit boolean fields:
- LoginFinished: indicates successful authentication
- Synced: indicates we've received at least one netmap
This makes the state more composable and easier to reason about, as
multiple conditions can be true independently rather than being
encoded in a single enum value.
The State enum was originally intended as the state machine for the
whole client, but that abstraction moved to ipn.Backend long ago.
This change continues moving away from the legacy state machine by
representing state as a combination of independent facts.
Also adds test helpers in ipnlocal that check independent, observable
facts (hasValidNetMap, needsLogin, etc.) rather than relying on
derived state enums, making tests more robust.
Updates #12639
Signed-off-by: James Tucker <james@tailscale.com>
The key.NewEmptyHardwareAttestationKey hook returns a non-nil empty
attestationKey, which means that the nil check in Clone doesn't trigger
and proceeds to try and clone an empty key. Check IsZero instead to
reduce log spam from Clone.
As a drive-by, make tpmAvailable check a sync.Once because the result
won't change.
Updates #17882
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
Most /etc/os-release files set the VERSION_ID to a `MAJOR.MINOR`
string, but we were trying to compare this numerically against a major
version number. I can only assume that Linux Mint used switched from a
plain integer, since shells only do integer comparisons.
This patch extracts a VERSION_MAJOR from the VERSION_ID using
parameter expansion and unifies all the other ad-hoc comparisons to
use it.
Fixes#15841
Signed-off-by: Simon Law <sfllaw@tailscale.com>
Co-authored-by: Xavier <xhienne@users.noreply.github.com>
LinkChangeLogLimiter keeps a subscription to track rate limits for log
messages. But when its context ended, it would exit the subscription loop,
leaving the subscriber still alive. Ensure the subscriber gets cleaned up
when the context ends, so we don't stall event processing.
Updates tailscale/corp#34311
Change-Id: I82749e482e9a00dfc47f04afbc69dd0237537cb2
Signed-off-by: M. J. Fromberger <fromberger@tailscale.com>
On the corp tailnet (using Mullvad exit nodes + bunch of expired
devices + subnet routers), these were generating big ~35 KB blobs of
logging regularly.
This logging shouldn't even exist at this level, and should be rate
limited at a higher level, but for now as a bandaid, make it less
spammy.
Updates #cleanup
Change-Id: I0b5e9e6e859f13df5f982cd71cd5af85b73f0c0a
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
When TS_LOG_TARGET is set to an invalid URL, url.Parse returns an error
and nil pointer, which caused a panic when accessing u.Host.
Now we check the error from url.Parse and log a helpful message while
falling back to the default log host.
Fixes#17792
Signed-off-by: Andrew Dunham <andrew@tailscale.com>
As a baby step towards eventbus-ifying controlclient, make the
Observer optional.
This also means callers that don't care (like this network lock test,
and some tests in other repos) can omit it, rather than passing in a
no-op one.
Updates #12639
Change-Id: Ibd776b45b4425c08db19405bc3172b238e87da4e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This commit replaces usage of local.Client in net/udprelay with DERPMap
plumbing over the eventbus. This has been a longstanding TODO. This work
was also accelerated by a memory leak in net/http when using
local.Client over long periods of time. So, this commit also addresses
said leak.
Updates #17801
Signed-off-by: Jordan Whited <jordan@tailscale.com>
Instead of trying to call View() on something that's already a View
type (or trying to Clone the view unnecessarily), we can re-use the
existing View values in a map[T]ViewType.
Fixes#17866
Signed-off-by: Andrew Dunham <andrew@tailscale.com>
They distracted me in some refactoring. They're set but never used.
Updates #17858
Change-Id: I6ec7d6841ab684a55bccca7b7cbf7da9c782694f
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
updates tailscale/corp#31571
It appears that on the latest macOS, iOS and tVOS versions, the work
that netns is doing to bind outgoing connections to the default interface (and all
of the trimmings and workarounds in netmon et al that make that work) are
not needed. The kernel is extension-aware and doing nothing, is the right
thing. This is, however, not the case for tailscaled (which is not a
special process).
To allow us to test this assertion (and where it might break things), we add a
new node cap that turns this behaviour off only for network-extension equipped clients,
making it possible to turn this off tailnet-wide, without breaking any tailscaled
macos nodes.
Signed-off-by: Jonathan Nobels <jonathan@tailscale.com>
I noticed a deadlock in a test in a in-development PR where during a
shutdown storm of things (from a tsnet.Server.Close), LocalBackend was
trying to call magicsock.Conn.Synchronize but the magicsock and/or
eventbus was already shut down and no longer processing events.
Updates #16369
Change-Id: I58b1f86c8959303c3fb46e2e3b7f38f6385036f1
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Unfortunately I closed the tab and lost it in my sea of CI failures
I'm currently fighting.
Updates #cleanup
Change-Id: I4e3a652d57d52b75238f25d104fc1987add64191
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
So they're not all run N times on the sharded oss builders
and are only run one time each.
Updates tailscale/corp#28679
Change-Id: Ie21e84b06731fdc8ec3212eceb136c8fc26b0115
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
When systemd notification support was omitted from the build, or on
non-Linux systems, we were unnecessarily emitting code and generating
garbage stringifying addresses upon transition to the Running state.
Updates #12614
Change-Id: If713f47351c7922bb70e9da85bf92725b25954b9
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
This removes one of the O(n=peers) allocs in getStatus, as
Engine.getStatus happens more often than Reconfig.
Updates #17814
Change-Id: I8a87fbebbecca3aedadba38e46cc418fd163c2b0
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Previously if `chains` was empty, it would be passed to `computeActiveAncestor()`,
which would fail with the misleading error "multiple distinct chains".
Updates tailscale/corp#33846
Signed-off-by: Alex Chan <alexc@tailscale.com>
Change-Id: Ib93a755dbdf4127f81cbf69f3eece5a388db31c8
* lock released early just to call `b.send` when it can call
`b.sendToLocked` instead
* `UnlockEarly` called to release the lock before trivially fast
operations, we can wait for a defer there
Updates #11649
Signed-off-by: Andrew Lytvynov <awly@tailscale.com>
It was disabled in May 2024 in #12205 (9eb72bb51).
This removes the unused symbols.
Updates #188
Updates tailscale/corp#19106
Updates tailscale/corp#19116
Change-Id: I5208b7b750b18226ed703532ed58c4ea17195a8e
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
Use GetGlobalAddrs() to discover all STUN endpoints, handling bad NATs
that create multiple mappings. When MappingVariesByDestIP is true, also
add the first STUN IPv4 address with the relay's local port for static
port mapping scenarios.
Updates #17796
Signed-off-by: Raj Singh <raj@tailscale.com>
Brad Fitzpatrick
Avery Palmer
Xinyu Kuo
Jordan Whited
James Tucker
Andrew Lytvynov
Alex Chan
Simon Law
M. J. Fromberger
Andrew Dunham
James 'zofrex' Sanderson
Naman Sood
License Updater
Fran Bull
Jonathan Nobels
Sachin Iyer
Raj Singh