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.
One peer build per tag/user/IP/route write; callers detect policy moves
via NodesGeneration. Per-node caches only store results for the node
pm holds, so a mapper reading mid-build cannot pin a stale filter.
waitForFollowup selected on ctx.Done() and the verdict channel with equal
priority; when both were ready, select picked at random and discarded a
successful registration as a spurious 401 timeout. Check for a completed
verdict first, race the deadline only if none is ready.
Fixes#3385
waitForFollowup returns nodeToRegisterResponse for a completed
registration without checking that the Noise session polling for the
result was started with the machine key that opened the registration.
That response carries the registering user's User and Login, so the auth
ID in the followup URL is the only thing protecting it.
handleRegister and handleLogout both call machineKeyMismatch before
handing back a node, so this is the one path of the three that does not.
The key is already available: HandleNodeFromAuthPath resolves the node
from the MachineKey cached in RegistrationData, so on the normal path the
node and the session agree and the check is a no-op.
The auth ID is 96 bits of randomness and is not guessable, so this is not
reachable by brute force. It is logged at info level when a registration
is created, which makes log access the realistic way to obtain one.
The existing followup_registration_success case built its node with
CreateNodeForTest, which picks a random machine key that no real
registration would produce. Set the registering machine key so the
fixture matches the production path.
Signed-off-by: Arpit Jain <arpitjain099@gmail.com>
Tailscale sends the sentinel time.Unix(123, 0) on logout; storing it
verbatim propagates a 1970 KeyExpiry to every peer's netmap. Same
semantics (expired as of now), saner logs and debug dumps.
Every Go-identifier reference in // and /* */ comments now uses
godoc's [Name] linking syntax so pkg.go.dev and `go doc` render
them as clickable cross-references. No behaviour change.
Pattern applied across the tree:
In-package [Foo], [Foo.Bar]
Cross-package [pkg.Foo], [pkg.Foo.Bar]
Stdlib [netip.Prefix], [errors.Is], [context.Context]
Tailscale [tailcfg.MapResponse], [tailcfg.Node.CapMap],
[tailcfg.NodeAttrSuggestExitNode]
Skip rules:
- File:line refs left as plain text
- HuJSON wire keys inside backtick raw strings untouched
- ACL/policy syntax tokens (tag:foo, autogroup:self, ...) not Go
symbols, left as plain text
- JSON/OIDC wire keys, gorm tags, RFC IPv6 placeholders, markdown
link tags, decorative dividers — all left as-is
The guard added for #2862 in handleRegister checked
node.Expiry().Valid() before preserving node state on
Auth=nil + Expiry=zero registration requests. Valid() returns false
when node.Expiry is nil, the default for tagged nodes and for untagged
nodes registered against a preauth key with no default node.expiry
configured. Both fell through to handleLogout, which wrote
&time.Time{} (0001-01-01T00:00:00Z) over the original nil — the
user-visible 0001-01-01 expiry that `headscale nodes list` reports
after restart.
IsExpired() already returns false for both nil and zero-time, so the
Valid() check was redundant. Drop it so all nil-expiry nodes are
covered by the same preservation path.
Fixes#3170Fixes#3262
Ingest (registration and MapRequest updates) now calls
dnsname.SanitizeHostname directly and lets NodeStore auto-bump on
collision. Admin rename uses dnsname.ValidLabel + SetGivenName so
conflicts are surfaced to the caller instead of silently mutated.
Three duplicate invalidDNSRegex definitions, the old NormaliseHostname
and ValidateHostname helpers, EnsureHostname, InvalidString,
ApplyHostnameFromHostInfo, GivenNameHasBeenChanged, generateGivenName
and EnsureUniqueGivenName are removed along with their tests.
ValidateHostname's username half is retained as ValidateUsername for
users.go.
The SaaS-matching collision rule replaces the random "invalid-xxxxxx"
fallback and the 8-character hash suffix; the empty-input fallback is
the literal "node". TestUpdateHostnameFromClient now exercises the
rewrite end-to-end with awkward macOS/Windows names.
Fixes#3188Fixes#2926Fixes#2343Fixes#2762Fixes#2449
Updates #2177
Updates #2121
Updates #363
The #2862 restart path returned nodeToRegisterResponse after a
NodeKey-only lookup without verifying MachineKey. Add the same
check handleLogout already performs.
Replace zcache with golang-lru/v2/expirable for both the state auth
cache and the OIDC state cache. Add tuning.register_cache_max_entries
(default 1024) to cap the number of pending registration entries.
Introduce types.RegistrationData to replace caching a full *Node;
only the fields the registration callback path reads are retained.
Remove the dead HSDatabase.regCache field. Drop zgo.at/zcache/v2
from go.mod.
Generalise the registration pipeline to a more general auth pipeline
supporting both node registrations and SSH check auth requests.
Rename RegistrationID to AuthID, unexport AuthRequest fields, and
introduce AuthVerdict to unify the auth finish API.
Add the urlParam generic helper for extracting typed URL parameters
from chi routes, used by the new auth request handler.
Updates #1850
Add --disable flag to "headscale nodes expire" CLI command and
disable_expiry field handling in the gRPC API to allow disabling
key expiry for nodes. When disabled, the node's expiry is set to
NULL and IsExpired() returns false.
The CLI follows the new grpcRunE/RunE/printOutput patterns
introduced in the recent CLI refactor.
Also fix NodeSetExpiry to persist directly to the database instead
of going through persistNodeToDB which omits the expiry field.
Fixes#2681
Co-authored-by: Marco Santos <me@marcopsantos.com>
Build / build-cross (GOARCH=amd64 GOOS=darwin) (push) Has been cancelled
Build / build-cross (GOARCH=amd64 GOOS=linux) (push) Has been cancelled
Build / build-cross (GOARCH=arm64 GOOS=darwin) (push) Has been cancelled
Build / build-cross (GOARCH=arm64 GOOS=linux) (push) Has been cancelled
Check Generated Files / check-generated (push) Has been cancelled
NixOS Module Tests / nix-module-check (push) Has been cancelled
Tests / test (push) Has been cancelled
Close inactive issues / close-issues (push) Has been cancelled
This commit upgrades the codebase from Go 1.25.5 to Go 1.26rc2 and
adopts new language features.
Toolchain updates:
- go.mod: go 1.25.5 → go 1.26rc2
- flake.nix: buildGo125Module → buildGo126Module, go_1_25 → go_1_26
- flake.nix: build golangci-lint from source with Go 1.26
- Dockerfile.integration: golang:1.25-trixie → golang:1.26rc2-trixie
- Dockerfile.tailscale-HEAD: golang:1.25-alpine → golang:1.26rc2-alpine
- Dockerfile.derper: golang:alpine → golang:1.26rc2-alpine
- .goreleaser.yml: go mod tidy -compat=1.25 → -compat=1.26
- cmd/hi/run.go: fallback Go version 1.25 → 1.26rc2
- .pre-commit-config.yaml: simplify golangci-lint hook entry
Code modernization using Go 1.26 features:
- Replace tsaddr.SortPrefixes with slices.SortFunc + netip.Prefix.Compare
- Replace ptr.To(x) with new(x) syntax
- Replace errors.As with errors.AsType[T]
Lint rule updates:
- Add forbidigo rules to prevent regression to old patterns
Go style recommends that log messages and error strings should not be
capitalized (unless beginning with proper nouns or acronyms) and should
not end with punctuation.
This change normalizes all zerolog .Msg() and .Msgf() calls to start
with lowercase letters, following Go conventions and making logs more
consistent across the codebase.
Build / build-cross (GOARCH=amd64 GOOS=darwin) (push) Has been cancelled
Build / build-cross (GOARCH=amd64 GOOS=linux) (push) Has been cancelled
Build / build-cross (GOARCH=arm64 GOOS=darwin) (push) Has been cancelled
Build / build-cross (GOARCH=arm64 GOOS=linux) (push) Has been cancelled
Check Generated Files / check-generated (push) Has been cancelled
NixOS Module Tests / nix-module-check (push) Has been cancelled
Tests / test (push) Has been cancelled
Close inactive issues / close-issues (push) Has been cancelled
This PR changes tags to be something that exists on nodes in addition to users, to being its own thing. It is part of moving our tags support towards the correct tailscale compatible implementation.
There are probably rough edges in this PR, but the intention is to get it in, and then start fixing bugs from 0.28.0 milestone (long standing tags issue) to discover what works and what doesnt.
Updates #2417Closes#2619
When tailscaled restarts, it sends RegisterRequest with Auth=nil and
Expiry=zero. Previously this was treated as a logout because
time.Time{}.Before(time.Now()) returns true.
Add early return in handleRegister() to detect this case and preserve
the existing node state without modification.
Fixes#2862
This PR addresses some consistency issues that was introduced or discovered with the nodestore.
nodestore:
Now returns the node that is being put or updated when it is finished. This closes a race condition where when we read it back, we do not necessarily get the node with the given change and it ensures we get all the other updates from that batch write.
auth:
Authentication paths have been unified and simplified. It removes a lot of bad branches and ensures we only do the minimal work.
A comprehensive auth test set has been created so we do not have to run integration tests to validate auth and it has allowed us to generate test cases for all the branches we currently know of.
integration:
added a lot more tooling and checks to validate that nodes reach the expected state when they come up and down. Standardised between the different auth models. A lot of this is to support or detect issues in the changes to nodestore (races) and auth (inconsistencies after login and reaching correct state)
This PR was assisted, particularly tests, by claude code.
Build / build-cross (GOARCH=amd64 GOOS=darwin) (push) Has been cancelled
Build / build-cross (GOARCH=amd64 GOOS=linux) (push) Has been cancelled
Build / build-cross (GOARCH=arm64 GOOS=darwin) (push) Has been cancelled
Build / build-cross (GOARCH=arm64 GOOS=linux) (push) Has been cancelled
Check Generated Files / check-generated (push) Has been cancelled
Tests / test (push) Has been cancelled
Close inactive issues / close-issues (push) Has been cancelled
update-flake-lock / lockfile (push) Has been cancelled
GitHub Actions Version Updater / build (push) Has been cancelled
- tailscale client gets a new AuthUrl and sets entry in the regcache
- regcache entry expires
- client doesn't know about that
- client always polls followup request а gets error
When user clicks "Login" in the app (after cache expiry), they visit
invalid URL and get "node not found in registration cache". Some clients
on Windows for e.g. can't get a new AuthUrl without restart the app.
To fix that we can issue a new reg id and return user a new valid
AuthUrl.
RegisterNode is refactored to be created with NewRegisterNode() to
autocreate channel and other stuff.
Initial work on a nodestore which stores all of the nodes
and their relations in memory with relationship for peers
precalculated.
It is a copy-on-write structure, replacing the "snapshot"
when a change to the structure occurs. It is optimised for reads,
and while batches are not fast, they are grouped together
to do less of the expensive peer calculation if there are many
changes rapidly.
Writes will block until commited, while reads are never
blocked.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
Build / build-cross (GOARCH=386 GOOS=linux) (push) Has been cancelled
Build / build-cross (GOARCH=amd64 GOOS=darwin) (push) Has been cancelled
Build / build-cross (GOARCH=amd64 GOOS=linux) (push) Has been cancelled
Build / build-cross (GOARCH=arm GOOS=linux GOARM=5) (push) Has been cancelled
Build / build-cross (GOARCH=arm GOOS=linux GOARM=6) (push) Has been cancelled
Build / build-cross (GOARCH=arm GOOS=linux GOARM=7) (push) Has been cancelled
Build / build-cross (GOARCH=arm64 GOOS=darwin) (push) Has been cancelled
Build / build-cross (GOARCH=arm64 GOOS=linux) (push) Has been cancelled
Tests / test (push) Has been cancelled
There was a bug in HA subnet router handover where we used stale node data
from the longpoll session that we handed to Connect. This meant that we got
some odd behaviour where routes would not be deactivated correctly.
This commit changes to the nodeview is used through out, and we load the
current node to be updated in the write path and then handle it all there
to be consistent.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
this commit moves all of the read and write logic, and all different parts
of headscale that manages some sort of persistent and in memory state into
a separate package.
The goal of this is to clearly define the boundry between parts of the app
which accesses and modifies data, and where it happens. Previously, different
state (routes, policy, db and so on) was used directly, and sometime passed to
functions as pointers.
Now all access has to go through state. In the initial implementation,
most of the same functions exists and have just been moved. In the future
centralising this will allow us to optimise bottle necks with the database
(in memory state) and make the different parts talking to eachother do so
in the same way across headscale components.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* integration: ensure route is set before node joins, reproduce
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* auth: ensure that routes are autoapproved when the node is stored
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
---------
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* fix issue auto approve route on register bug
This commit fixes an issue where routes where not approved
on a node during registration. This cause the auto approval
to require the node to readvertise the routes.
Fixes#2497Fixes#2485
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* hsic: only set db policy if exist
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* policy: calculate changed based on policy and filter
v1 is a bit simpler than v2, it does not pre calculate the auto approver map
and we cannot tell if it is changed.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
---------
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
This helps preventing messages being sent with the wrong update type
and payload combination, and it is shorter/neater.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
Build / build-cross (GOARCH=386 GOOS=linux) (push) Waiting to run
Build / build-cross (GOARCH=amd64 GOOS=darwin) (push) Waiting to run
Build / build-cross (GOARCH=amd64 GOOS=linux) (push) Waiting to run
Build / build-cross (GOARCH=arm GOOS=linux GOARM=5) (push) Waiting to run
Build / build-cross (GOARCH=arm GOOS=linux GOARM=6) (push) Waiting to run
Build / build-cross (GOARCH=arm GOOS=linux GOARM=7) (push) Waiting to run
Build / build-cross (GOARCH=arm64 GOOS=darwin) (push) Waiting to run
Build / build-cross (GOARCH=arm64 GOOS=linux) (push) Waiting to run
Tests / test (push) Waiting to run
update-flake-lock / lockfile (push) Has been cancelled
GitHub Actions Version Updater / build (push) Has been cancelled
* add dedicated http error to propagate to user
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* classify user errors in http handlers
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* move validation of pre auth key out of db
This move separates the logic a bit and allow us to
write specific errors for the caller, in this case the web
layer so we can present the user with the correct error
codes without bleeding web stuff into a generic validate.
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
* update changelog
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
---------
Signed-off-by: Kristoffer Dalby <kristoffer@tailscale.com>
Kristoffer Dalby
Kristoffer Dalby
Arpit Jain
Florian Preinstorfer
Andrey Bobelev