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Author SHA1 Message Date
Kristoffer Dalby 177920d84e 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 27f0858880 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 164c8ece40 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 40063d6213 state: forget a node's SSH check approvals when it is expired 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 3766d31c18 state: honour SSH check approvals only while the source keeps its owner 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 49333eb32b state: let a pre-auth key that is no longer valid only wake its node 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby f7b1d0c3ec state: serialise registrations presenting an unused single-use key 2026-10-30 14:55:36 +00:00
Kristoffer Dalby b0347ccccc 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 7e29163300 state: undo a failed re-registration without reverting newer writes 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 09aba4e488 state: write node rows from the NodeStore under persistMu 2026-10-30 14:55:36 +00:00
Kristoffer Dalby b4f970f93c state: apply map requests only under the node key that authorised them 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 4b4ce87cd0 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 4e433f7a04 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby ffd4f34841 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby be07e0f536 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 3719b4db0d policy, state: log only the routes auto-approval adds 2026-10-30 14:55:36 +00:00
Kristoffer Dalby bcc951ec54 poll: hold the map session's node as a view 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 05a5c11a20 policy/matcher, types: compare a node's routes to matchers as ranges 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 926998d553 policy/matcher: binary-search ranges in overlap checks 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 3c62eb17bb 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 5314508846 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 9093e0108b types: derive subnet and exit routes in one pass 
Emit each approved route once, in announcement order.
Skip derivation when no routes are approved.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 2dc2dfc8cd 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 8735976f26 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 2377e060f2 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 41dc97401b types: add when a node's run of control sessions began 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 160302e920 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby af6babc4fa 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby a1ab489eb2 state: withhold HA probe results only for routers tied to a deferred one 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 8571c2e989 state: keep probing a lone advertiser while it is unhealthy 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 2c265e1300 hscontrol, types: strip trailing slashes from server_url 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 08f600f045 db: bound the wait for a legacy hash verification slot 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 8c7d5e5551 db: reload the credential row after a legacy hash verification 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 3b2553755b db: disable GORM's prepared statement cache on SQLite 
database.gorm.prepare_stmt is now ignored, with a startup warning.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby f39d1b8928 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 7fa696a690 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby cae4033813 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 649e864819 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 39f928e6d8 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 19dc9873d1 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 58c1ccf86c 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby ad1d2bef2f 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 19d8960f10 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 5a316e83d0 policy/v2: refuse autogroup:member as an sshTests destination 
Tailscale SaaS refuses it when parsing; headscale evaluated it.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 63ccb1dad7 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 7a5f548ec3 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".
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 9e79b08fa6 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 0708870b6c 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby c4bf1cb46f 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.
 2026-10-30 14:55:36 +00:00
Kristoffer Dalby 7123c4b593 state: install a written policy only after it is stored 
Writers validated by installing the policy live, so a store failure
left a refused or unstored policy enforced. Validate on a throwaway
manager, store, then reload from the stored row.
 2026-10-30 14:55:36 +00:00