selftests/landlock: Add network tracepoint tests

Browse source

Add network-specific trace tests, co-located with the existing audit
fixture so each subsystem's functional, audit, and trace tests live
together.

Parameterized fixtures verify the landlock_deny_access_net event: a bind
or connect denied outside the ruleset emits exactly one event with the
expected sport/dport, an allowed bind or connect emits none, and the
unsandboxed baseline emits none.  A separate fixture verifies the
landlock_check_rule_net event on an allowed bind, anchoring its domain,
access_request, port, and grants to exact values; only check_rule_fs had
a dedicated field test before.

Port fields are read in host endianness, matching the
landlock_net_port_attr.port UAPI convention, so the decimal comparisons
also catch byte-order regressions in the tracepoint plumbing.  IPv6
trace tests are intentionally elided: IPv6 hook dispatch shares the
current_check_access_socket() path with IPv4 (covered by the audit
tests), and the trace fields do not depend on address family.

Cc: Günther Noack <gnoack@google.com>
Cc: Tingmao Wang <m@maowtm.org>
Link: https://patch.msgid.link/20260811094338.288094-17-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>

...

This commit is contained in:

Mickaël Salaün 2026-08-11 11:43:30 +02:00

parent 30478db56c

commit 6e2df0117b

No known key found for this signature in database

GPG key ID: E5E3D0E88C82F6D2

1 changed files with 589 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

590

tools/testing/selftests/landlock/net_test.c

View file