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Author SHA1 Message Date
Kristoffer Dalby ab4596f40a state: invalidate SSH check approvals on owner changes and expiry 
Honor approval only while its source keeps the same owner and is live.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby 343680c092 state: let a pre-auth key that is no longer valid only wake its node 
A login that keeps its node key leaves a live node's expiry alone, even
with a valid key, and a wake-up is not refused for the tags it requests.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby 4f7c8ec32a state: serialise registrations presenting an unused single-use key 2026-11-02 17:46:52 +00:00
Kristoffer Dalby 1449fa9f84 state: auto-approve routes in the NodeStore writer, not on reload 
Registration approval runs on the node the writer replaces. A policy
reload approves nothing, and a map request only when its announced
routes change, so neither re-grants a route an admin revoked.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby 67bdb685d8 state: persist current NodeStore rows and roll back only failed writes 
Read current NodeStore rows under persistMu. Roll back only fields still
matching the failed registration, preserving concurrent node changes.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby cee821f349 state: apply map requests only under the node key that authorised them 2026-11-02 17:46:52 +00:00
Kristoffer Dalby 0e1140c710 policy: offer exit routes only to viewers whose rules reach the internet 
Every destination overlaps /0, so any rule offered a peer's exit routes.
They now need a rule to the internet, the test exit-node visibility
uses; via steering defers them to a regular grant only on that test.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby e0c9ff425e mapper: send a router all of its own routes 
Its AllowedIPs held only the primaries the policy let it reach. It now
holds every approved route, and PrimaryRoutes the ones it serves.

Fixes #3626
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby a49f9122f7 policy: reduce merged destination prefixes to the node's own addresses 
Adjacent node addresses merge into one prefix, and each node's filter
kept all of it. A prefix made only of node addresses now shrinks to the
node's own; a prefix the policy wrote, or one the node routes, stays.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby 8c3b615bda api, policy/v2: refuse route prefixes with host bits 
Routes are matched as written, so such a prefix never equals the one a
client announces. The approval APIs answer 400 and autoApprovers refuses
it at load and write, with Tailscale's text.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby fc8a12c950 policy, state: log only the routes auto-approval adds 2026-11-02 17:46:52 +00:00
Kristoffer Dalby 048fcefbdb poll: hold the map session's node as a view 2026-11-02 17:46:52 +00:00
Kristoffer Dalby 691d9d6b1e policy/matcher: compare cached policy and node route ranges 
Binary-search immutable policy ranges and normalize node routes once.
Large misses and self/via scans improve; small or early matches can slow,
and global policies pay extra normalization and allocation costs.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby e72476f0ae policy: look up approved routes in a set when auto-approving 
Avoid scanning the growing approval list for every announcement.
Use the sorted current routes when identifying additions.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby 1ea702cdbe types, state: derive and reduce approved routes once 
Derive subnet and exit routes together, once each in announcement order.
Reuse matcher membership while preserving HA co-router visibility.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby 5fd173178f state, policy/v2: classify only effective route changes 
Compare announced-and-approved routes only when immutable route inputs
change. Publish Hostinfo without unnecessary peer adjacency rebuilds.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby edbb1fe9b6 policy/v2, state: elect primaries by oldest control session 
A router that reconnects joins as a standby; one that kept its session
takes its routes back once available again, as on Tailscale. Both the
global and the via election use it, in place of anti-flap stickiness.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby 7e5aa85601 types: add when a node's run of control sessions began 2026-11-02 17:46:52 +00:00
Kristoffer Dalby de8a0cc7eb state, policy/v2: elect available routers and retain unavailable routes 
Recompute via elections on health changes and check online state and expiry.
With no available router, retain the previous primary or lowest-ID approver;
exclude routers the prober marked unreachable.
 2026-11-02 17:46:52 +00:00
Kristoffer Dalby 1c94588bf9 state: keep HA health probes active without delaying unrelated routers 
Probe lone unhealthy advertisers. Defer results only for routers whose
routes tie them to a router still awaiting its probe.
 2026-11-02 17:46:51 +00:00
Kristoffer Dalby f2d4029887 hscontrol, types: strip trailing slashes from server_url 2026-11-02 17:46:51 +00:00
Kristoffer Dalby 789d70f672 db: bound legacy hash verification and reload verified credentials 
Limit the wait for a verification slot and reload the credential after
verification so concurrent revocation or deletion remains effective.
 2026-11-02 17:46:51 +00:00
Kristoffer Dalby 05ca808491 db: disable GORM's prepared statement cache on SQLite 
database.gorm.prepare_stmt is now ignored, with a startup warning.
 2026-11-02 17:46:51 +00:00
Kristoffer Dalby 170ae26ad7 policy/v2: refuse check SSH rules with tag sources 
A check asks the source's user to log in again, and a tagged node has
none. Tailscale SaaS refuses the rule; headscale accepted it.
 2026-11-02 17:46:51 +00:00
Kristoffer Dalby e3ecff567e policy/v2: bound grant destination expansion 
Require one port or range per grant IP entry. Reject more than 100,000
declared destination/port-range combinations on every parse.
 2026-11-02 17:46:51 +00:00
Kristoffer Dalby f431dc1e65 policy/v2: evaluate policy tests from compiled snapshots 
Parse filters once and index SSH rules by source. Evaluate tests against
user and node snapshots before taking the write lock.
 2026-11-02 17:46:51 +00:00
Kristoffer Dalby fa6b46bfd9 policy/v2: need every dst node for a tests accept, no range sources 
An accept passes only when each node behind the dst is reached, as on
Tailscale SaaS; a deny keeps its rule. A CIDR, "*" or autogroup:tagged
src names no user or host, so its test fails.
 2026-11-02 17:46:51 +00:00
Kristoffer Dalby 5527a30491 policy/v2: bound failure reports and name SSH test aliases 
Keep source/destination labels and repeated destination occurrences.
Limit reports to 100 lines and labels to 256 bytes.
 2026-11-02 17:46:51 +00:00
Kristoffer Dalby e254fd798e policy/v2: validate SSH test sources and destinations like SaaS 
Reject address-range sources and autogroup:member destinations.
 2026-11-02 17:46:51 +00:00
Kristoffer Dalby b56b6dcae1 policy/v2: map login 0 to no local user in SSH rules 
Every rule that maps root now carries "0": "", as Tailscale SaaS writes
it, also when the policy lists "0".
 2026-11-02 17:46:51 +00:00
Kristoffer Dalby cb706b1999 policy/v2: normalize emitted ACL and via destinations 
Write single-address via destinations bare. Deduplicate repeated ACL
destination/port pairs while preserving grant duplicates.
 2026-11-02 17:46:50 +00:00
Kristoffer Dalby d326143556 state, db: validate and store the current policy before installing it 
Reject empty input. Validate without changing live state, then store and
install under one lock; prune old rows only with a successful write.
 2026-11-02 17:46:50 +00:00
Kristoffer Dalby 89d56419e2 policy/v2: resolve tag owners one hop deep 
A user claims only the tags it owns directly, and a tag owns only the
tags that list it, as on Tailscale SaaS. With no walk left, validate
names an undefined owner once, with the tag that lists it.
 2026-11-02 17:46:50 +00:00
Kristoffer Dalby 61be050061 policy/v2: evaluate sshTests sources through the nodes they cover 
A src was expanded to every address it names, so "*" or ::/0 never
finished. Principals are node addresses: keep those plus one stand-in.
 2026-11-02 17:46:50 +00:00
Kristoffer Dalby 5307f64751 policy/v2: reuse compiled policy data across rules and nodes 
Cache shared source keys, compile SSH rules and principals once, and
resolve groups once on a policy copy.
 2026-11-02 17:46:50 +00:00
Kristoffer Dalby 1b76d9071a policy/v2: keep via steering bounded across route and user changes 
Refresh clients when the last via grant disappears. Match each ACL once,
deduplicate routes, and elect once per route the peer actually serves.
 2026-11-02 17:46:50 +00:00
Kristoffer Dalby 5db5f85d62 state: serialise policy reloads 
Load and install the stored policy as one step, so an older
reload cannot install its document over a newer one.
 2026-11-02 15:16:47 +00:00
Kristoffer Dalby 5f9a124174 integration: keep HA cable-pull routers off each other's routes 
A router holding the other's route for its docker subnet in table 52
cannot be reattached: docker resolves the gateway through tailscale0.
Replaces the phase 4a wait that covered one case of it.
 2026-11-02 15:16:47 +00:00
Kristoffer Dalby 99d8997e47 mapper: count only the batcher's goroutines in lifecycle tests 
runtime.NumGoroutine deltas moved when goroutines left by earlier
tests exited mid-test. Label the batcher's goroutines and count those.
 2026-11-02 16:09:00 +01:00
Kristoffer Dalby 5b578fe95f policy/v2: recapture SSH data captures 
Every ssh_results row captured again from SaaS. SaaS now maps login "0"
to no local user in rules that map root, quotes a refused checkPeriod as
written and rewords its tailnet-domain refusal.
 2026-11-02 16:09:00 +01:00
Kristoffer Dalby 363ba7be44 hscontrol, servertest: add key list scope golden data 
Read-only and key-making OAuth tokens of each tag set list auth keys
with and without all=true, over admin- and token-made keys of every tag
relation, one admin key made after the token-made ones.
 2026-11-02 16:09:00 +01:00
Kristoffer Dalby e8b44c653f servertest: add user role dispatch golden data 
An admin role change under autogroup:admin, mirrored as a user rename;
peers, filter and frames per node per step, and v2 device users.
 2026-11-02 16:09:00 +01:00
Kristoffer Dalby 1318f2802f servertest, state: add node name golden data 
Labels under taken hostnames, case-only renames, hostname changes, long
hostnames and a Service's name; API, peer and self per step, and State
labels as a restart would load them.
 2026-11-02 16:09:00 +01:00
Kristoffer Dalby a34eb4f535 policy/v2, servertest: add policy generation golden data 
One policy over joins, a via router swap, an admin tag, a delete and a
group edit; filter, SSH, peers and routes per step, and the manager
against a fresh one.
 2026-11-02 16:09:00 +01:00
Kristoffer Dalby 349c4db600 servertest: add hidden peer and route announcement golden data 
What a node hears of peers it cannot see, and what a router's peers hear
of routes it announces; presence, removals, peers and routes per step.
 2026-11-02 16:09:00 +01:00
Kristoffer Dalby 20a1855147 servertest: count map frames per client 
Counts ControlTime events, so frames that leave the netmap as it was,
or that a delta client applies in place, still show.
 2026-11-02 16:09:00 +01:00
Kristoffer Dalby b4217925c9 servertest: recapture map delivery golden data 
The probe now bounds snapshot reads and keeps feature refusals as data.
SaaS now sends appc and sshd laptop's unchanged entry on the restore.
 2026-11-02 16:09:00 +01:00
Kristoffer Dalby d84c1927f9 servertest: wait for each replayed join before the next 
Polls start in the background, so a later router could come online
first and keep the global primary SaaS gave the first.
 2026-11-02 16:09:00 +01:00
Kristoffer Dalby 75040798e4 servertest: count deleted nodes in replayed peer views 
Only nodes still in State resolved to an alias, so a client that kept
a deleted peer passed the peers and route owner checks.
 2026-11-02 16:09:00 +01:00
Kristoffer Dalby f4af5e0286 servertest: recapture via HA failover golden data 
The probe now bounds its reads and stops when a step loses data.
Route owners and peers match the first capture at every step.
 2026-11-02 16:09:00 +01:00