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author | Daniel Borkmann <daniel@iogearbox.net> | 2021-09-14 01:07:59 +0200 |
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committer | Alexei Starovoitov <ast@kernel.org> | 2021-09-13 16:35:58 -0700 |
commit | 43d2b88c29f2d120b4dc22f27b3483eb14bd9815 (patch) | |
tree | c54cd022d421cd2a2bba032fdb56a9a631a7d858 /kernel/cgroup | |
parent | d8079d8026f82e4435445297d1b77bba1c4c7960 (diff) | |
download | linux-43d2b88c29f2d120b4dc22f27b3483eb14bd9815.tar.gz linux-43d2b88c29f2d120b4dc22f27b3483eb14bd9815.tar.bz2 linux-43d2b88c29f2d120b4dc22f27b3483eb14bd9815.zip |
bpf, selftests: Add test case for mixed cgroup v1/v2
Minimal selftest which implements a small BPF policy program to the
connect(2) hook which rejects TCP connection requests to port 60123
with EPERM. This is being attached to a non-root cgroup v2 path. The
test asserts that this works under cgroup v2-only and under a mixed
cgroup v1/v2 environment where net_classid is set in the former case.
Before fix:
# ./test_progs -t cgroup_v1v2
test_cgroup_v1v2:PASS:server_fd 0 nsec
test_cgroup_v1v2:PASS:client_fd 0 nsec
test_cgroup_v1v2:PASS:cgroup_fd 0 nsec
test_cgroup_v1v2:PASS:server_fd 0 nsec
run_test:PASS:skel_open 0 nsec
run_test:PASS:prog_attach 0 nsec
test_cgroup_v1v2:PASS:cgroup-v2-only 0 nsec
run_test:PASS:skel_open 0 nsec
run_test:PASS:prog_attach 0 nsec
run_test:PASS:join_classid 0 nsec
(network_helpers.c:219: errno: None) Unexpected success to connect to server
test_cgroup_v1v2:FAIL:cgroup-v1v2 unexpected error: -1 (errno 0)
#27 cgroup_v1v2:FAIL
Summary: 0/0 PASSED, 0 SKIPPED, 1 FAILED
After fix:
# ./test_progs -t cgroup_v1v2
#27 cgroup_v1v2:OK
Summary: 1/0 PASSED, 0 SKIPPED, 0 FAILED
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210913230759.2313-3-daniel@iogearbox.net
Diffstat (limited to 'kernel/cgroup')
0 files changed, 0 insertions, 0 deletions