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policy/v2: SaaS-derived compat tests for nodeAttrs

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Adds a data-driven test that loads testdata/nodeattrs_results/*.hujson
and diffs the captured SaaS-rendered netmaps against headscale's
compileNodeAttrs output. Each capture is one scenario the SaaS
control plane has rendered against the same policy headscale is asked
to compile -- the test enforces shape parity per node.

tailnet_state_caps.go enumerates the caps SaaS emits where headscale
has no equivalent concept yet (user-role admin/owner, tailnet lock,
services host, app connectors, internal magicsock and SSH tuning,
tailnet-state metadata) plus the always-on baseline (admin, ssh,
file-sharing) and the taildrive pair. stripUnmodelledTailnetStateCaps
filters both sides of cmp.Diff so the comparison focuses on the
policy-driven caps. PeerCapMap encodes which caps the Tailscale
client reads from the peer view (suggest-exit-node when exit routes
are approved, etc.) for use by the mapper.

testcapture switches to typed tailcfg/netmap/filtertype/apitype
values so schema drift between the capture tool and headscale
becomes a compile error rather than a silent test failure. Existing
compat suites (acl, grants, routes, ssh, issue_3212) move to the
typed shape.

The 53 SelfNode netmap captures and the 7 anonymizer-corrupted
suggest-charmander -> suggest-exit-node restorations in
routes_results / issue_3212 ride along.
This commit is contained in:
Kristoffer Dalby 2026-05-11 14:51:09 +00:00
parent 3f73ed5404
commit 078b9e308f
72 changed files with 463447 additions and 183 deletions
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4
hscontrol/policy/v2/tailscale_routes_data_compat_test.go
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@ -1,6 +1,6 @@
// This file implements data-driven test runners for routes compatibility tests.
// It loads HuJSON golden files from testdata/routes_results/routes-*.hujson,
// captured from Tailscale SaaS by tscap, and compares headscale's route-aware
// captured from a Tailscale-hosted control plane, and compares headscale's route-aware
// ACL engine output against the captured packet filter rules.
//
// Each capture file is a testcapture.Capture containing:
@ -57,7 +57,7 @@ func loadRoutesTestFile(t *testing.T, path string) *testcapture.Capture {
}
// convertSaaSEmail used to map SaaS-side emails to @example.com placeholders.
// tscap now anonymizes captures at write time (norse-god names + pokémon
// captures are anonymized at write time (norse-god names + pokémon
// hostnames), so the captured topology emails are already in their final
// form and this is a passthrough.
func convertSaaSEmail(email string) string {