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We are hitting build error on CentOS 9:
audit_test.c:232:40: error: ‘O_CLOEXEC’ undeclared (...)
Fix this by including fcntl.h.
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20250605214416.1885878-1-song@kernel.org
Fixes: 6b4566400a29 ("selftests/landlock: Add PID tests for audit records")
Signed-off-by: Mickaël Salaün <mic@digikod.net>
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Add audit.thread tests to check that the PID tied to a domain is not a
thread ID but the thread group ID. These new tests would not pass
without the previous TGID fix.
Extend matches_log_domain_allocated() to check against the PID that
created the domain.
Test coverage for security/landlock is 93.6% of 1524 lines according to
gcc/gcov-14.
Cc: Christian Brauner <brauner@kernel.org>
Cc: Günther Noack <gnoack@google.com>
Cc: Paul Moore <paul@paul-moore.com>
Link: https://lore.kernel.org/r/20250410171725.1265860-3-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
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The audit fixture needlessly stores and manages domain_stack. Move it
to the audit.layers tests. This will be useful to reuse the audit
fixture with the next patch.
Cc: Günther Noack <gnoack@google.com>
Link: https://lore.kernel.org/r/20250410171725.1265860-2-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
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Add audit_exec tests to filter Landlock denials according to
cross-execution or muted subdomains.
Add a wait-pipe-sandbox.c test program to sandbox itself and send a
(denied) signals to its parent.
Cc: Günther Noack <gnoack@google.com>
Cc: Paul Moore <paul@paul-moore.com>
Link: https://lore.kernel.org/r/20250320190717.2287696-24-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
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Add audit_test.c to check with and without LANDLOCK_RESTRICT_SELF_*
flags against the two Landlock audit record types:
AUDIT_LANDLOCK_ACCESS and AUDIT_LANDLOCK_DOMAIN.
Check consistency of domain IDs per layer in AUDIT_LANDLOCK_ACCESS and
AUDIT_LANDLOCK_DOMAIN messages: denied access, domain allocation, and
domain deallocation.
These tests use signal scoping to make it simple. They are not in the
scoped_signal_test.c file but in the new dedicated audit_test.c file.
Tests are run with audit filters to ensure the audit records come from
the test program. Moreover, because there can only be one audit
process, tests would failed if run in parallel. Because of audit
limitations, tests can only be run in the initial namespace.
The audit test helpers were inspired by libaudit and
tools/testing/selftests/net/netfilter/audit_logread.c
Cc: Günther Noack <gnoack@google.com>
Cc: Paul Moore <paul@paul-moore.com>
Cc: Phil Sutter <phil@nwl.cc>
Link: https://lore.kernel.org/r/20250320190717.2287696-23-mic@digikod.net
Signed-off-by: Mickaël Salaün <mic@digikod.net>
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