diff options
| author |   Stanislav Fomichev <sdf@google.com> | 2019-10-07 09:21:03 -0700 |
|---|---|---|
| committer |   Alexei Starovoitov <ast@kernel.org> | 2019-10-07 20:16:33 -0700 |
| commit | 1d9626dc08bf0f5c6932b98e0f4dc5d6b305786f (patch) | |
| tree | a20d775996eee47d44f32888ab7cece80a115885 /tools | |
| parent | bpf/flow_dissector: add mode to enforce global BPF flow dissector (diff) | |
| download | linux-dev-1d9626dc08bf0f5c6932b98e0f4dc5d6b305786f.tar.xz linux-dev-1d9626dc08bf0f5c6932b98e0f4dc5d6b305786f.zip | |
selftests/bpf: add test for BPF flow dissector in the root namespace
Make sure non-root namespaces get an error if root flow dissector is
attached.
Cc: Petar Penkov <ppenkov@google.com>
Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Stanislav Fomichev <sdf@google.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'tools')
| -rwxr-xr-x | tools/testing/selftests/bpf/test_flow_dissector.sh | 48 |
1 files changed, 42 insertions, 6 deletions
diff --git a/tools/testing/selftests/bpf/test_flow_dissector.sh b/tools/testing/selftests/bpf/test_flow_dissector.sh index d23d4da66b83..2c3a25d64faf 100755 --- a/tools/testing/selftests/bpf/test_flow_dissector.sh +++ b/tools/testing/selftests/bpf/test_flow_dissector.sh @@ -18,19 +18,55 @@ fi # this is the case and run it with in_netns.sh if it is being run in the root # namespace. if [[ -z $(ip netns identify $$) ]]; then + err=0 + if bpftool="$(which bpftool)"; then + echo "Testing global flow dissector..." + + $bpftool prog loadall ./bpf_flow.o /sys/fs/bpf/flow \ + type flow_dissector + + if ! unshare --net $bpftool prog attach pinned \ + /sys/fs/bpf/flow/flow_dissector flow_dissector; then + echo "Unexpected unsuccessful attach in namespace" >&2 + err=1 + fi + + $bpftool prog attach pinned /sys/fs/bpf/flow/flow_dissector \ + flow_dissector + + if unshare --net $bpftool prog attach pinned \ + /sys/fs/bpf/flow/flow_dissector flow_dissector; then + echo "Unexpected successful attach in namespace" >&2 + err=1 + fi + + if ! $bpftool prog detach pinned \ + /sys/fs/bpf/flow/flow_dissector flow_dissector; then + echo "Failed to detach flow dissector" >&2 + err=1 + fi + + rm -rf /sys/fs/bpf/flow + else + echo "Skipping root flow dissector test, bpftool not found" >&2 + fi + + # Run the rest of the tests in a net namespace. ../net/in_netns.sh "$0" "$@" - exit $? -fi + err=$(( $err + $? )) -# Determine selftest success via shell exit code -exit_handler() -{ - if (( $? == 0 )); then + if (( $err == 0 )); then echo "selftests: $TESTNAME [PASS]"; else echo "selftests: $TESTNAME [FAILED]"; fi + exit $err +fi + +# Determine selftest success via shell exit code +exit_handler() +{ set +e # Cleanup |