Commit Graph

4240 Commits

Author SHA1 Message Date
Kristoffer Dalby a518a5076a state: batch route auto-approval into one policy rebuild
Per-node SetApprovedRoutes made each policy reload O(m*n^2).
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 2c9164b1c4 policy: precompute node routes in the peer-map build
CanAccess recomputed each node's routes per pair, making the scan O(n^2)-heavy.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 0e7b154617 mapper: register reconnecting node atomically against cleanup
A reconnect could be deleted from b.nodes mid-AddNode and orphaned.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby ad2693ff13 mapper: record initial-map peers only after delivery
A timed-out initial map left phantom lastSentPeers, skewing later diffs.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 7d845ef65e db: advance allocator cursor under lock during IP backfill
Reading prev4/prev6 unlocked raced Next; not advancing made backfill O(n^2).
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 9f0c74e73a dns: release lock before extra-records channel send
A blocked send held the write lock and leaked the watcher at shutdown.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby e413919810 derp: clone regions when merging DERP maps
In-place node shuffling aliased regions shared with the served map.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 0921972f96 oidc: avoid slice panic in getCookieName for short values
A malformed short nonce no longer panics; it yields a non-matching name.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 99ad555d64 db: handle degenerate prefixes in random IP allocation
Single-address prefixes panicked; zero-high-byte addresses failed to encode.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 10696fa634 db: look up API keys by explicit primary key, not struct condition
GetAPIKeyByID(0) returned the first key instead of not-found.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 84c99023e5 util: check RNG error before slicing url-safe random string
A crypto/rand failure sliced empty output and panicked.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby ba54349176 util: handle single-address IPv4 prefix in reverse DNS generation
A /32 indexed past the 4-byte address and panicked at startup.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 08f186f22a state: skip database persist for keepalive-only map requests
A lone LastSeen bump no longer triggers a full-row write and policy rescan.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 017162dac1 state: signal NodeStore shutdown without closing writeQueue
Writes racing Stop now drop cleanly instead of panicking on send.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby bb06b90543 types: skip malformed derp.urls entries instead of panicking
A failed url.Parse left a nil pointer that was dereferenced at startup.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 5a70a72988 types: lock tailcfg DNS config access for extra-records updates
The watcher write raced per-client map builds cloning ExtraRecords.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby ec94573258 db: drop superseded ephemeral deletions in the GC drain loop
A node reconnecting after its deletion queued is no longer removed.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 4c165ae5e7 db: reap ephemeral GC watcher goroutine on cancel and reschedule
A stopped timer never fires, so the per-node watcher leaked until close.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 06d6816dc9 state: keep nil expiry for nodes that stay tagged on reauth
The convert-from-tag arm wrongly set an expiry on still-tagged nodes.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby f61753e737 db: bound IP allocation scan so exhausted prefixes error out
Random strategy previously spun forever under the allocator mutex.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 4f67300005 types: clone Hostinfo before applying DERP change
Stops mutating a NetInfo pointer shared with a published snapshot.
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 2e2401833b state: persist live NodeStore node in persistNodeToDB
Avoids clobbering concurrent admin writes (tags, routes, rename).
2026-06-08 10:04:49 +02:00
Kristoffer Dalby 29f87e5eaa flakehashes: refresh vendor hash after dropping gorilla/mux
Regenerated by `go run ./cmd/vendorhash update` so the Nix build's
vendorHash matches the new go.mod/go.sum fingerprint.

Updates #3296
2026-06-05 15:00:59 +02:00
Kristoffer Dalby f61d21b4a7 go.mod: drop unused gorilla/mux dependency
ApplePlatformConfig was the last consumer; go mod tidy removes the
require and the two checksum lines.

Updates #3296
2026-06-05 15:00:59 +02:00
Kristoffer Dalby b892b8f254 hscontrol: read Apple platform via chi.URLParam, not mux.Vars
ApplePlatformConfig still used gorilla mux.Vars after the chi
migration in 30338441, so every /apple/{platform} request returned
400 "no platform specified". Read the param via chi and add tests.

Fixes #3296
2026-06-05 15:00:59 +02:00
Florian Preinstorfer 6777a82ee6 Rewrite reverse proxy documentation
- Restructure and cleanup reverse proxy docs
- Update examples for Apache, Caddy, Nginx
- Provide some basic usage examples
2026-06-04 09:59:19 +02:00
Kristoffer Dalby 5228cb1a40 change: drop subnet-router full update, use policy change
Don't send a full update when a subnet router goes up or down; the gated
policy change already recomputes peers and is a smaller payload.

Updates #3293
2026-06-03 19:05:24 +02:00
Kristoffer Dalby cffdb77c8b mapper, change: coalesce duplicate policy recomputes per tick
Deduplicate broadcast policy changes within a tick so peers don't recompute
their netmap more than needed during a reconnect storm.

Updates #3293
2026-06-03 19:05:24 +02:00
Kristoffer Dalby 7706552c99 state: gate reconnect PolicyChange on NodeNeedsPeerRecompute
Connect and Disconnect appended change.PolicyChange() on every reconnect. PolicyChange sets RequiresRuntimePeerComputation, so the batcher rebuilt a full netmap (packet filters, SSH policy, peer serialization) for every connected node — O(N) per reconnect, O(N^2) on a restart storm. On a small VM this saturated CPU after the v0.28 -> v0.29 upgrade.

Emit it only when the node's online state changes what peers compute: subnet routers, relay targets, and via targets. An ordinary reconnect now sends just the lightweight online/offline peer patch. Relay and via targets still recompute, so peers drop a stale PeerRelay allocation when a relay goes offline.

Fixes #3293
2026-06-03 14:51:57 +02:00
Kristoffer Dalby bceac495f9 policy: add NodeNeedsPeerRecompute predicate
Reports whether a node's online/offline transition forces peers to recompute their netmap. True for subnet routers, relay targets (tailscale.com/cap/relay), and via targets; false otherwise.

The relay-target IP set and via-target tag set are precompiled from the grants in updateLocked, alongside the existing filter, so the per-node check is a cheap set lookup. Keyed on the node itself, so an ordinary node in a tailnet that uses relay or via for other nodes is still classified as not needing a recompute.

Updates #3293
2026-06-03 14:51:57 +02:00
Kristoffer Dalby 171fd7a3c5 policy: key autogroup:self invalidation on UserID not User view
invalidateAutogroupSelfCache derived the owning user from
node.User().ID(), dereferencing the User association view. The
NodeStore stores nodes by value with User as a *User pointer, and not
every write path hydrates that association, so a non-tagged node could
reach SetNodes with UserID set but User nil. UserView.ID() then
dereferenced a nil *User and panicked on /machine/map whenever an
autogroup:self policy was active and a node restarted tailscaled.

Group affected nodes by node.TypedUserID(), which reads the UserID
field directly. UserID is the authoritative ownership field for
non-tagged nodes, so this needs no hydrated association and fixes every
.User().ID() site in the function.
v0.29.0-beta.2
2026-05-29 21:42:56 +02:00
Shourya Gautam ea8fc72570 db: backfill zero-time node expiry to NULL
Versions before 0.28 persisted a pointer to a zero time.Time as
'0001-01-01 00:00:00+00:00' in nodes.expiry rather than NULL. 0.29
reports those rows as expired. #3197 and #3199 stopped new writes;
this normalises the existing rows so the column once again means
"no expiry" when unset.

Fixes: #3284

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-05-27 09:49:05 +02:00
Kristoffer Dalby 77ba225cdb db: treat Go module pseudo-versions as dev builds
Untagged main-sha builds inherit a Go module pseudo-version from
runtime/debug.BuildInfo (vX.Y.Z-<timestamp>-<hash>). isDev only
filtered "", "dev", and "(devel)", so the pseudo-version was stored
in database_versions and the next real release tripped the
multi-minor upgrade guard:

    headscale version v0.29.0-beta.1 cannot be used with a database
    last used by v0.0.0-20260520093041-e4e742c776ee, upgrading more
    than one minor version at a time is not supported

Add pseudoVersionTime, a regex + time.Parse predicate covering all
three Go pseudo-version forms (v0.0.0 base, pre-release ancestor,
release ancestor), and delegate from isDev. The dev gate at
db.go:790 already prevents pseudo-versions from being written, so
already-poisoned databases self-heal on the next real-release start.

Fixes #3281
2026-05-26 17:29:13 +02:00
Kristoffer Dalby 4483fd0cad tsic, gh: keep unstable on Docker Hub
ghcr.io/tailscale/tailscale:unstable is stale (last updated 2022,
points to v1.35.25). Only tailscale/tailscale on Docker Hub publishes
current unstable builds, so tsic.go reverts the unstable case and
build-tailscale-released pulls unstable from Docker Hub while keeping
release tags on ghcr.io.

Release tags on ghcr.io match Docker Hub by digest (verified v1.96),
so the rate-limit avoidance for the bulk of pulls is preserved.

Add the conditional docker/login-action step to the new job so the
main repo gets authenticated pulls; fork PRs fall through to anonymous
DH for the single unstable pull per CI run, well under the 100/6h
anonymous limit.
2026-05-22 14:29:24 +02:00
Kristoffer Dalby 66a5f99bfa gh: pre-pull released tailscale images for fork-PR CI
Fork PRs anonymous-pull tailscale/tailscale:vX.Y at test time and hit
Docker Hub rate limits, causing flakes. A new build-tailscale-released
job pulls the MustTestVersions set from ghcr.io once per CI run and
ships them to every test job as a gzipped tarball artifact, matching
the shape of the existing headscale/HEAD/postgres caches.

The version list is driven by 'hi list-versions' so capver is the
single source of truth; adding a version there propagates to CI
without YAML edits.

ghcr.io public reads need no auth, so the new job has no docker login
step.
2026-05-22 14:29:24 +02:00
Kristoffer Dalby 2e49f3dc67 tsic: pull tailscale images from ghcr.io
Anonymous reads on ghcr.io are unmetered. Pulling tailscale/tailscale
from Docker Hub fails on fork PRs without DOCKERHUB_USERNAME because
the unauthenticated rate limit is hit at test time.

ghcr.io/tailscale/tailscale publishes the same tags. The cache-hit
short-circuit in dockertestutil.PullWithAuth still skips the pull when
the image is already loaded locally, so the change is a no-op once CI
pre-pulls the images.
2026-05-22 14:29:24 +02:00
Kristoffer Dalby 79562b9782 hi: add list-versions subcommand
Prints the tailscale versions integration tests use, with optional
filter and format flags. Source of truth stays in hscontrol/capver;
CI shells out to this instead of duplicating the version list in
YAML.

Examples:
  hi list-versions
  hi list-versions --set=must --exclude=head
  hi list-versions --set=all --format=json
2026-05-22 14:29:24 +02:00
Kristoffer Dalby 58a85b68b3 CHANGELOG: bump 0.29.0 minimum tailscale client to v1.80.0
Reflects the capver floor move from 109 (v1.78) to 113 (v1.80) that
ships with this release.
v0.29.0-beta.1
2026-05-22 11:22:01 +02:00
Kristoffer Dalby eb23c125fa capver, types: bump to tailscale v1.98, drop LegacyDERPString
Regenerate capver for tailscale v1.98 — `MinSupportedCapabilityVersion`
slides 109 → 113 (v1.78 → v1.80). v1.80+ clients understand
`Node.HomeDERP`, which superseded `LegacyDERPString` upstream at capver
111. Drops the emit, plumbing, the trip-wire that caught this cleanup,
the golden test fixtures, and the integration check on
`peer.LegacyDERPString()` — the sibling `HomeDERP` check covers intent.

`v1.98` was added by hand to `capver_generated.go` because tailscale
skipped publishing v1.97/v1.98 to ghcr until late in the cycle; a clean
regeneration produces the same content.
2026-05-22 11:22:01 +02:00
Kristoffer Dalby 570735f204 gen: regenerate grpc stubs with protoc-gen-go-grpc v1.6.2 2026-05-22 11:22:01 +02:00
Kristoffer Dalby 78570c754f Dockerfile: bump base images
Bump golang to 1.26.3, alpine to 3.23, rust to 1.95 across the
integration, derper, tailscale-HEAD, and tailscale-rs Dockerfiles.
2026-05-22 11:22:01 +02:00
Kristoffer Dalby 25adfaf341 flake.nix, flake.lock: bump nixpkgs and pinned tools
nixpkgs: bump unstable revision. Pinned tools: grpc-gateway 2.28.0 ->
2.29.0 (matches the Go dep), golangci-lint 2.11.4 -> 2.12.2. Disable
gomodguard in .golangci.yaml since 2.12 deprecated it.
2026-05-22 11:22:01 +02:00
Kristoffer Dalby be90910d33 go.mod, go.sum: bump dependencies for v0.29.0
Refresh direct deps (tailscale v1.98.1, modernc.org/sqlite v1.50.1 +
libc v1.72.3 lockstep, otel cluster v1.43.0, x/* family, pgx v5.9.2,
go-jose v3.0.5, grpc v1.81.1, grpc-gateway v2.29.0) and bulk-update
remaining direct deps. tailscale held at v1.98.1 since v1.98.2 demands
go 1.26.3 which nixpkgs unstable does not yet ship.
2026-05-22 11:22:01 +02:00
Kristoffer Dalby 575d8ecbfd changelog: normalise 0.29.0 BREAKING and Changes sections
Move HA subnet router health probing above BREAKING so the layout
matches every other release. Drop **User deletion**: / **Node Expiry**:
bold prefixes redundant with the #### subgrouping. Fill missing PR
refs: #3202 (hostname rewrite), #3263 (sshTests + SSH rule validation),
#3194 (HA probe), #3251 (randomize_client_port removal), #3268
(trusted_proxies).
2026-05-20 14:17:24 +02:00
Kristoffer Dalby e4e742c776 noise: pin outer RemoteAddr onto tunnel requests
The HTTP/2 server inside the Noise tunnel fills r.RemoteAddr from the
hijacked TCP socket, so /machine/register and /machine/map logged the
reverse proxy's loopback peer (e.g. 127.0.0.1:44388) even with
trusted_proxies set. The outer router's realIPMiddleware had already
resolved the client IP onto req.RemoteAddr; that value never crossed
the hijack.

Replace the inner realIPMiddleware mount — dead inside the encrypted
tunnel — with overrideRemoteAddr(req.RemoteAddr) so requests served
over the tunnel report the outer-resolved client IP.
2026-05-20 11:30:41 +02:00
Kristoffer Dalby 4cca63155d all: apply godoc [Name] link conventions across comments
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
2026-05-19 09:55:22 +02:00
Kristoffer Dalby 17236fd284 all: annotate complex functions with gocyclo rationale
Splitting these functions does not buy clarity — each has been
extracted before and put back. Pin the //nolint:gocyclo on each
with the reason their shape resists clean decomposition.

  policy/v2/policy.go     ViaRoutesForPeer        — three-pass
                                                    via-grant resolution
  policy/v2/filter.go     compileSSHPolicy        — per-rule
                                                    branches with
                                                    intertwined
                                                    autogroup:self
                                                    handling
                                                    (annotated in the
                                                    earlier nil-error
                                                    commit)
  state/state.go          HandleNodeFromPreAuthKey — security-
                                                    sensitive
                                                    sequential
                                                    validation order
  servertest/routes_test  TestRoutes              — table-driven
                                                    test driver with
                                                    many independent
                                                    subtests

Also: //nolint:recvcheck on policy/v2.SSHUser — UnmarshalJSON
requires a pointer receiver; the other methods on this string
newtype use value receivers by convention.
2026-05-19 09:55:22 +02:00
Kristoffer Dalby 3e2aa5814e all: annotate gosec false positives with rationale
Each //nolint:gosec carries the gosec code and one line on why
the finding is a false positive or already mitigated.

  G124 cookies (oidc.go x3, oidc_confirm_test.go)
    Secure is set conditionally on req.TLS != nil; HttpOnly and
    SameSiteStrictMode already on. gosec misses the conditional.
    Test fixture cookie is explicitly a test fixture.

  G705 (debug.go)
    templates.PingPage(...).Render() is a templ component that
    auto-escapes user input.

  G706 (scenario.go)
    Integration log emits trusted scenario state. The pre-built
    image G706 sites in hsic.go / tsic.go ride along with the
    earlier constants commit.

  G710 (app.go, tailsql.go)
    Redirect target is "trusted ServerURL prefix + path". gosec
    cannot see past the prefix.
2026-05-19 09:55:22 +02:00
Kristoffer Dalby f905d58292 all: mechanical lint fixes
hscontrol/debug.go — pre-size nodes []nodeStatus to len(debugInfo)
    so the loop does not grow under append.
  hscontrol/mapper/batcher_test.go — testing.TB parameter on
    setupBatcherWithTestData renamed t → tb so thelper sees the
    expected name.
  hscontrol/db/text_serialiser.go — reflect.Ptr → reflect.Pointer
    (deprecated alias).
2026-05-19 09:55:22 +02:00
Kristoffer Dalby e00c899219 cmd, templates, integration: extract shared production constants
Constants the operator/test reader benefits from centralising.
Tests stay verbatim (the .golangci.yaml goconst tune skips them);
extraction here applies only where the same literal acts as
shared vocabulary across files.

  cmd/headscale/cli/strings.go (new)
    Cobra subcommand verbs and aliases shared by every list / show
    / new / delete / expire command across api_key, nodes, policy,
    preauthkeys, users — plus the Result / Created / Expiration
    column headers used in printOutput maps.

  hscontrol/templates/design.go
    cssBorderHS, cssBreakWord, cssCenter, cssOverflowWrap — shared
    styles applied across design.go, ping.go, register_confirm.go.
    spaceS already existed; switch raw "0.5rem" literals to it.

  integration/hsic/hsic.go
    binHeadscale, flagOutput, acceptJSON — names invoked across
    hsic.go and config.go.

  integration/tsic/tsic.go
    tailscaleBin — used across docker exec call sites.
2026-05-19 09:55:22 +02:00