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Author SHA1 Message Date
Kristoffer Dalby 97351a392f state: drop registration locks once unused 
The lock is taken before any credential check, so client-chosen machine
keys grew the map forever. Ref-count entries; delete at zero.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby d2749d9726 types, auth, noise: let one request wait on each auth session 
One verdict per session, so one waiter: the newest. A displaced one
returns at once (register error, SSH re-delegate), not at session end.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 71150e7990 auth: check the follow-up's machine key before it waits 
A session has one verdict; another machine holding the URL could take
it.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 62897a7f36 noise: stop serving metrics inside the tunnel 
Any machine key reached it, bypassing metrics_listen_addr. No client
asks for it.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby f28192a9d4 noise: time out stalled bodies and idle tunnels 
The hijack drops the outer server's deadlines; any machine key gets a
tunnel.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 0069b8dd38 hscontrol: bound client-chosen text in request logs 
Clip at the sinks: handler errors, the request line, SSH local_user.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby bddc7ce44b auth, state: keep announced routes out of pending registrations 
Routes are the one long list; the first MapRequest reports them.
A relogin keeps the node's own routes until then.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 717fa70da4 state: bound client reports of nodes loaded at startup 
Rows stored before the bounds would still fan out unbounded endpoints.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby c0f1f48483 types, noise: bound the Hostinfo and endpoints a client reports 
Cut lists and hostname at decode, refuse >64 KiB of non-route Hostinfo.
The body limit counted wire bytes, not what the cache, NodeStore and
peers keep.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 11cff1da0b 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby b67228a31a 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 0fdbe12e9e 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.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 92b0acb322 hscontrol: refuse a key expiry that cannot be encoded 
handleRegister, the OIDC auth path and SetNodeExpiry refuse it. Expiries
are stored in UTC, which SQLite can read back, and loaded in UTC, as
PostgreSQL returns the server's zone. The v1 API answers 400.
 2026-10-27 21:32:33 +00:00
Kristoffer Dalby 36bb3ccb25 mapper: skip peers whose key expiry cannot be encoded 
json.Marshal refuses a year outside [0,9999], so one stored expiry
failed every map with that node. TailNode and key patches send UTC, the
builder drops what fails and the boot scan names the node.
 2026-10-27 21:32:33 +00:00
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