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Author SHA1 Message Date
Kristoffer Dalby 0bd2c73546 state: apply requested tags on a key login that owns them 
A requested tag the key's user owns directly, or the key's tags own one
hop away, replaces the key's tags instead of refusing the login.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby ef1dabcb61 state: auto-approve routes after an admin tag change 
The new tags may approve announced routes. Approval runs once the policy
manager knows the new owner, as after a registration.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 7f415ec531 state: drop auto-approved routes when they are withdrawn 
Only routes auto-approval alone granted go; approvals from before the
upgrade stay, as do routes an admin set.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby e7fba93c54 db, types: add a column for auto-approved routes 
It starts empty: the current policy cannot tell which earlier approvals
were automatic, so all of them stay as an admin's.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 627d4e5014 state: auto-approve on registration only when the node key rotates 
Registration runs the approval itself, once the policy manager knows the
node's owner, for a new node key or a change to the announced routes.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 17aa4194bd auth: store a client's earlier expiry and expire a tagged node at logout 
A client may bring its expiry forward, which turns expiry on for a node
without one, but still cannot push it back. Logout expires tagged nodes
too.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 6a96fa4ca9 auth, state: answer an expired node's same-key login with NodeKeyExpired 
The client then rotates its node key and logs in again, so no key is
judged under the expired one. The machine stays authorised.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 32553a1e72 state: forget a node's SSH check approvals when it is expired 2026-10-27 21:32:33 +00:00
Kristoffer Dalby c8ed1971ab state: honour SSH check approvals only while the source keeps its owner 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 5e382e2a89 state: give another user's key on a tagged machine a new device 
Only a key that speaks for a tagged node re-authenticates it: a tagged
key, or one of the user it was tagged from, which takes it back with a
new node key. Another user's key or login adds that user's own device.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 817f8e0057 state: let a pre-auth key that is no longer valid only wake its node 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 573349e3b5 state: need a valid pre-auth key to re-register an expired tagged node 2026-10-27 21:32:33 +00:00
Kristoffer Dalby cc36764a4b state: serialise registrations presenting an unused single-use key 2026-10-27 21:32:33 +00:00
Kristoffer Dalby d47d94be0a 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 64f606e2ab state: undo a failed re-registration without reverting newer writes 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 7c8fcd2393 state: write node rows from the NodeStore under persistMu 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 8bd19d56a5 state: apply map requests only under the node key that authorised them 2026-10-27 21:32:33 +00:00
Kristoffer Dalby a9ad49f9a6 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 701138104c 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 5d8a8f993c 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 2abcf2b44a 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 04b0938240 state: never serve a single address inside the node ranges 
Such a route names a node, not a subnet: it stays approved and listed
but no viewer gets it. Via inclusions skip the election, so the rule
sits on everything RoutesForPeer returns.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 3a29d86098 policy, state: log only the routes auto-approval adds 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 02ff84e89f poll: hold the map session's node as a view 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 05307fe7ad policy/matcher, types: compare a node's routes to matchers as ranges 2026-10-27 21:32:33 +00:00
Kristoffer Dalby f61a7cfafe policy/matcher: binary-search ranges in overlap checks 2026-10-27 21:32:33 +00:00
Kristoffer Dalby ae6cd03310 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 6d03e39830 types, state: reduce a node's routes against the matchers once 
Reuse matcher membership and approved subnets across the route list.
Preserve route order and HA co-router visibility.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 6ce2a4c9f7 types: derive subnet and exit routes in one pass 
Emit each approved route once, in announcement order.
Skip derivation when no routes are approved.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 3c698721a2 state: skip route comparison for writes that leave routes alone 
Reuse immutable route inputs when classifying NodeStore writes.
Only derive routes when an announcement or approval changes.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 60de984ada state, policy/v2: stop treating announced-only routes as policy changes 
Policy evaluation reads only announced-and-approved routes.
Keep publishing Hostinfo updates without rebuilding peer adjacency.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 6f9b5ac737 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby ec28e29209 types: add when a node's run of control sessions began 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 1389857702 state: keep a prefix mapped when no router is available 
Peers keep the routes of an offline or expired router, as on Tailscale.
The previous primary keeps the prefix, else the lowest-ID approver;
never one the prober declared unreachable.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby dbd7e8e986 policy/v2, state: elect via primaries among online, healthy routers 
Availability tests expiry itself, not only the online flag.
A health change on a via target now triggers a peer recompute.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby e6f2615f3e state: withhold HA probe results only for routers tied to a deferred one 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 9e26630a1a state: keep probing a lone advertiser while it is unhealthy 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 33303570e3 hscontrol, types: strip trailing slashes from server_url 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 3da801b2b2 db: bound the wait for a legacy hash verification slot 2026-10-27 21:32:33 +00:00
Kristoffer Dalby f321e384d4 db: reload the credential row after a legacy hash verification 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 788216a2b8 db: disable GORM's prepared statement cache on SQLite 
database.gorm.prepare_stmt is now ignored, with a startup warning.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 559a8f1c4d 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 561c0c4aec policy/v2: limit the destination and port pairs a policy declares 
A grant lists dst and ip apart, so its filter grows with their product.
Refuse a policy over 100,000 pairs, on every parse.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby e05f34b8f0 policy/v2: refuse a port list in a grant ip entry 
Tailscale SaaS takes one port range per ip entry; a list was accepted
and expanded. Write each range as an entry of its own.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 1df5577519 policy/v2: evaluate policy tests before taking the write lock 
SetPolicy ran the policy's tests under the lock every map response and
node write needs. Run them on a snapshot of users and nodes first.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby d47a7845e3 policy/v2: index compiled SSH rules by source for sshTests 
Each check scanned every rule and parsed every principal per login name,
destination and source address. Compile once per run, key each
destination's rules by principal address, and evaluate a name once.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby c483d2e601 policy/v2: parse the compiled filter once per tests run 
The tests evaluator parsed every SrcIPs and DstPorts entry again for
each assertion, source prefix and rule. Parse the filter once per run.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby b7c043e33e 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 95890f8e31 policy/v2: label sshTests failures with the dst alias 
The report goes back to the policy author: name src and dst as written,
one line per dst occurrence, and a dst with no node as not reached.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 34da44b48a policy/v2: bound the tests and sshTests failure report 
The report printed every failure with the full labels, so its size was
labels times failures. Print 100 lines of 256-byte labels, then a count.
 2026-10-27 21:32:33 +00:00