When tailscaled restarts, it sends RegisterRequest with Auth=nil and
Expiry=zero. Previously this was treated as a logout because
time.Time{}.Before(time.Now()) returns true.
Add early return in handleRegister() to detect this case and preserve
the existing node state without modification.
Fixes#2862
Changed UpdateUser and re-registration flows to use Updates() which only
writes modified fields, preventing unintended overwrites of unchanged fields.
Also updated UsePreAuthKey to use Model().Update() for single field updates
and removed unused NodeSave wrapper.
Fixes a regression introduced in v0.27.0 where node expiry times were
being reset to zero when tailscaled restarts and sends a MapRequest.
The issue was caused by using GORM's Save() method in persistNodeToDB(),
which overwrites ALL fields including zero values. When a MapRequest
updates a node (without including expiry information), Save() would
overwrite the database expiry field with a zero value.
Changed to use Updates() which only updates non-zero values, preserving
existing database values when struct pointer fields are nil.
In BackfillNodeIPs, we need to explicitly update IPv4/IPv6 fields even
when nil (to remove IPs), so we use Select() to specify those fields.
Added regression test that validates expiry is preserved after MapRequest.
Fixes#2862
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Skip auth key validation for existing nodes re-registering with the same
NodeKey. Pre-auth keys are only required for initial authentication.
NodeKey rotation still requires a valid auth key as it is a security-sensitive
operation that changes the node's cryptographic identity.
Fixes#2830
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When we encounter a source we cannot resolve, we skipped the whole rule,
even if some of the srcs could be resolved. In this case, if we had one user
that exists and one that does not.
In the regular policy, we log this, and still let a rule be created from what
does exist, while in the SSH policy we did not.
This commit fixes it so the behaviour is the same.
Fixes#2863
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
On Windows, if the user clicks the Tailscale icon in the system tray,
it opens a login URL in the browser.
When the login URL is opened, `state/nonce` cookies are set for that particular URL.
If the user clicks the icon again, a new login URL is opened in the browser,
and new cookies are set.
If the user proceeds with auth in the first tab,
the redirect results in a "state did not match" error.
This patch ensures that each opened login URL sets an individual cookie
that remains valid on the `/oidc/callback` page.
`TestOIDCMultipleOpenedLoginUrls` illustrates and tests this behavior.
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When we fixed the issue of node visibility of nodes
that only had access to eachother because of a subnet
route, we gave all nodes access to all exit routes by
accident.
This commit splits exit nodes and subnet routes in the
access.
If a matcher indicates that the node should have access to
any part of the subnet routes, we do not remove it from the
node list.
If a matcher destination is equal to the internet, and the
target node is an exit node, we also do not remove the access.
Fixes#2784Fixes#2788
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
There are situations where the subnet routes and exit nodes
must be treated differently. This splits it so SubnetRoutes
only returns routes that are not exit routes.
It adds `IsExitRoutes` and `AllApprovedRoutes` for convenience.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
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Correctly identify Viper's ConfigFileNotFoundError in LoadConfig to log a warning and use defaults, unifying behavior with empty config files. Fixes fatal error when no config file is present for CLI commands relying on environment variables.
Andrey Bobelev
Kristoffer Dalby
Kristoffer Dalby
Florian Preinstorfer
Vitalij Dovhanyc
Copilot
Andrey
Paarth Shah
Elyas Asmad
Juanjo Presa