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Author SHA1 Message Date
Kristoffer Dalby 0d725e494b 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 719d8a90fa 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 292005b6d4 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby d96873434d 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby f0bb724ee5 state: forget a node's SSH check approvals when it is expired 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 20886d61c5 state: honour SSH check approvals only while the source keeps its owner 2026-10-28 19:06:05 +00:00
Kristoffer Dalby a36c33e8e7 state: let a pre-auth key that is no longer valid only wake its node 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 809035d7a6 state: serialise registrations presenting an unused single-use key 2026-10-28 19:06:05 +00:00
Kristoffer Dalby b4066260f0 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 974bfb0a96 state: undo a failed re-registration without reverting newer writes 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 6cb7d520ef state: write node rows from the NodeStore under persistMu 2026-10-28 19:06:05 +00:00
Kristoffer Dalby ef577487b2 state: apply map requests only under the node key that authorised them 2026-10-28 19:06:05 +00:00
Kristoffer Dalby d3cc4ad861 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby f2b075083d 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby b140580d37 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby b9d35f5397 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby b26dd72046 policy, state: log only the routes auto-approval adds 2026-10-28 19:06:05 +00:00
Kristoffer Dalby e94f1a065f poll: hold the map session's node as a view 2026-10-28 19:06:05 +00:00
Kristoffer Dalby e800362a66 policy/matcher, types: compare a node's routes to matchers as ranges 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 064d35bb36 policy/matcher: binary-search ranges in overlap checks 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 5f7d34d53e 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 0eea9cadf4 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 9b14bf4860 types: derive subnet and exit routes in one pass 
Emit each approved route once, in announcement order.
Skip derivation when no routes are approved.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 7240ad2029 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 043ba98701 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby df86073f54 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby 5329b35d45 types: add when a node's run of control sessions began 2026-10-28 19:06:05 +00:00
Kristoffer Dalby fc395ba756 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby bc131da3d6 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.
 2026-10-28 19:06:05 +00:00
Kristoffer Dalby fb54b5e89b state: withhold HA probe results only for routers tied to a deferred one 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 5892e2b1a6 state: keep probing a lone advertiser while it is unhealthy 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 5bad0d8d7e hscontrol, types: strip trailing slashes from server_url 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 2163d382c4 db: bound the wait for a legacy hash verification slot 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 11263b75a3 db: reload the credential row after a legacy hash verification 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 29c2924c04 db: disable GORM's prepared statement cache on SQLite 
database.gorm.prepare_stmt is now ignored, with a startup warning.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 4d36d89e8a 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.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 7d934b1d8e 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.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby e0f59bc13a 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.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby f18501e8c6 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.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 4452b058ef 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.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 76cdabaef2 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.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 8a59373631 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.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 77db4da87d 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.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 89c26d0628 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.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 5e2a04d34a policy/v2: refuse autogroup:member as an sshTests destination 
Tailscale SaaS refuses it when parsing; headscale evaluated it.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 4554bd5b9c policy/v2: refuse address ranges as sshTests sources 
A CIDR, or a hosts entry holding one, as an sshTests src is refused,
as on Tailscale SaaS. Destinations share the range check.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby bd8a1f0bb6 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".
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 52f19dac0b policy/v2: write an ACL's repeated destination once 
An ACL that names a destination and port twice wrote the pair twice.
Grants keep their repeats, as on Tailscale SaaS.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 2e7c677841 policy/v2: write a single-address via destination bare 
Via rules wrote every destination with its prefix bits; ACL and grant
rules already drop them for a single address. Both use one formatter.
 2026-10-28 19:06:04 +00:00
Kristoffer Dalby 9b46f8f1fc db: keep only the current policy 
Every write inserted a row and nothing deleted one, while every reader
takes only the newest. Writers store and install under one lock, so an
uncommitted insert cannot outlive the newer row that pruned the rest.
 2026-10-28 19:06:04 +00:00