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Author SHA1 Message Date
Kristoffer Dalby e8edef2625 noise: stop serving metrics inside the tunnel 
Any machine key reached it, bypassing metrics_listen_addr. No client
asks for it.
 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 68e5bfd755 hscontrol: bound client-chosen text in request logs 
Clip at the sinks: handler errors, the request line, SSH local_user.
 2026-10-28 18:28:22 +00:00
Kristoffer Dalby e785afd35a mapper: show an expired peer online, without endpoints or DERP 
A connected expired node shows online to its peers. Neither its map
entry nor endpoint, DERP or disco patches carry the paths to reach it.
 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 82d2090511 mapper: trim the Hostinfo sent to peers and to the node itself 
As on Tailscale SaaS, the node's own entry keeps Hostname, RequestTags,
RoutableIPs and Services; peers get Hostname, OS, Services without
peerapi-dns-proxy, SSH host keys and AppConnector, and resend on those.
 2026-10-28 18:28:22 +00:00
Kristoffer Dalby fd70994523 mapper: keep an expired node authorised in its own entry 
Tailscale SaaS sends an expired node MachineAuthorized and no Expired
flag; its past KeyExpiry already moves the client to NeedsLogin.
 2026-10-28 18:28:22 +00:00
Kristoffer Dalby ad1b6b5931 .github: regenerate integration test workflow 2026-10-28 18:28:22 +00:00
Kristoffer Dalby f7c630fdf9 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.
 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 9dfd78e42e 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.
 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 8fb3d320a5 state: drop auto-approved routes when they are withdrawn 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.
 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 32a78cde83 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 18:28:22 +00:00
Kristoffer Dalby 98380c2be4 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 18:28:22 +00:00
Kristoffer Dalby dde74266d9 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 18:28:22 +00:00
Kristoffer Dalby bebc563035 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 18:28:22 +00:00
Kristoffer Dalby d3b4e321f3 state: forget a node's SSH check approvals when it is expired 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 94b138e184 state: honour SSH check approvals only while the source keeps its owner 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 56af18051f 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 18:28:22 +00:00
Kristoffer Dalby fda03f277f state: serialise registrations presenting an unused single-use key 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 690d72b7ee 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 18:28:22 +00:00
Kristoffer Dalby c3702993ce state: undo a failed re-registration without reverting newer writes 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 26be57d2de state: write node rows from the NodeStore under persistMu 2026-10-28 18:28:22 +00:00
Kristoffer Dalby ab2a2bf4af state: apply map requests only under the node key that authorised them 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 95c6129315 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 18:28:22 +00:00
Kristoffer Dalby 7f9bc1ef30 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 18:28:22 +00:00
Kristoffer Dalby 49d8424634 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 18:28:22 +00:00
Kristoffer Dalby f7e2b3c49e 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 18:28:22 +00:00
Kristoffer Dalby 8191a88774 policy, state: log only the routes auto-approval adds 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 6cc37f50f5 poll: hold the map session's node as a view 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 3f97e68a20 policy/matcher, types: compare a node's routes to matchers as ranges 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 633d48604e policy/matcher: binary-search ranges in overlap checks 2026-10-28 18:28:22 +00:00
Kristoffer Dalby cce082d24b 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 18:28:22 +00:00
Kristoffer Dalby ff5d0307f9 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 18:28:22 +00:00
Kristoffer Dalby 6473122532 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 18:28:22 +00:00
Kristoffer Dalby f2f03b91b4 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 18:28:22 +00:00
Kristoffer Dalby 9b97dada51 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 18:28:22 +00:00
Kristoffer Dalby 3ce5bf5d9a 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 18:28:22 +00:00
Kristoffer Dalby acb45aadde types: add when a node's run of control sessions began 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 59b8d2afe3 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 18:28:22 +00:00
Kristoffer Dalby 4d5b202db1 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 18:28:22 +00:00
Kristoffer Dalby 3af27ccfcc state: withhold HA probe results only for routers tied to a deferred one 2026-10-28 18:28:22 +00:00
Kristoffer Dalby e31012f70c state: keep probing a lone advertiser while it is unhealthy 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 09717f1111 hscontrol, types: strip trailing slashes from server_url 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 981a63b41e db: bound the wait for a legacy hash verification slot 2026-10-28 18:28:22 +00:00
Kristoffer Dalby 2f93effcdd db: reload the credential row after a legacy hash verification 2026-10-28 18:28:21 +00:00
Kristoffer Dalby 1784673fe1 db: disable GORM's prepared statement cache on SQLite 
database.gorm.prepare_stmt is now ignored, with a startup warning.
 2026-10-28 18:28:21 +00:00
Kristoffer Dalby dcb31fe03a 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 18:28:21 +00:00
Kristoffer Dalby 6c2200ae6b 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 18:28:21 +00:00
Kristoffer Dalby 24f03fb786 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 18:28:21 +00:00
Kristoffer Dalby de6eed892c 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 18:28:21 +00:00
Kristoffer Dalby 8f833377ad 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 18:28:21 +00:00
Kristoffer Dalby 645fd16843 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 18:28:21 +00:00