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RaagSrThL-kfeu6SQWstfvrtm8_H86xf X-Proofpoint-GUID: RaagSrThL-kfeu6SQWstfvrtm8_H86xf X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.0.607.475 definitions=2021-11-04_01,2021-11-03_01,2020-04-07_01 X-Proofpoint-Spam-Details: rule=fb_default_notspam policy=fb_default score=0 clxscore=1015 spamscore=0 impostorscore=0 suspectscore=0 priorityscore=1501 mlxscore=0 malwarescore=0 adultscore=0 phishscore=0 bulkscore=0 mlxlogscore=927 lowpriorityscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2111040033 X-FB-Internal: deliver Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 11/3/21 6:07 PM, Di Zhu wrote: > Add test for querying progs attached to sockmap. we use an existing > libbpf query interface to query prog cnt before and after progs > attaching to sockmap and check whether the queried prog id is right. > > Signed-off-by: Di Zhu > --- > .../selftests/bpf/prog_tests/sockmap_basic.c | 75 +++++++++++++++++++ > .../bpf/progs/test_sockmap_progs_query.c | 24 ++++++ > 2 files changed, 99 insertions(+) > create mode 100644 tools/testing/selftests/bpf/progs/test_sockmap_progs_query.c > > diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c > index 1352ec104149..de8f91d91240 100644 > --- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c > +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c > @@ -8,6 +8,7 @@ > #include "test_sockmap_update.skel.h" > #include "test_sockmap_invalid_update.skel.h" > #include "test_sockmap_skb_verdict_attach.skel.h" > +#include "test_sockmap_progs_query.skel.h" > #include "bpf_iter_sockmap.skel.h" > > #define TCP_REPAIR 19 /* TCP sock is under repair right now */ > @@ -315,6 +316,74 @@ static void test_sockmap_skb_verdict_attach(enum bpf_attach_type first, > test_sockmap_skb_verdict_attach__destroy(skel); > } > > +static __u32 query_prog_id(int prog_fd) > +{ > + struct bpf_prog_info info = {}; > + __u32 info_len = sizeof(info); > + int err; > + > + err = bpf_obj_get_info_by_fd(prog_fd, &info, &info_len); > + if (CHECK_FAIL(err || info_len != sizeof(info))) { > + perror("bpf_obj_get_info_by_fd"); Please use ASSERT_* macros. These macros are defined in test_progs.h. We may have some old files still using CHECK* which are not converted to ASSERT* yet. But for new contributions, we would like to use ASSERT* from start. You can check other prog_tests/*.c files for examples. For the above example, you can do if (!ASSERT_OK(err, "bpf_obj_get_info_by_fd") || !ASSERT_EQ(info_len, sizeof(info), "bpf_obj_get_info_by_fd")) return 0; > + return 0; > + } > + > + return info.id; [...] > + err = bpf_prog_query(map_fd, attach_type, 0 /* query flags */, > + &attach_flags, prog_ids, &prog_cnt); > + if (CHECK(err, "bpf_prog_query", "failed\n")) > + goto out; In this case, you can use if (!ASSERT_OK(err, "bpf_prog_query")) goto out; Please also change below other CHECK usages. > + > + if (CHECK(attach_flags != 0, "bpf_prog_query", > + "wrong attach_flags on query: %u", attach_flags)) > + goto out; > + > + if (CHECK(prog_cnt != 0, "bpf_prog_query", > + "wrong program count on query: %u", prog_cnt)) > + goto out; > + > + err = bpf_prog_attach(verdict_fd, map_fd, attach_type, 0); > + if (CHECK(err, "bpf_prog_attach", "failed\n")) > + goto out; > + > + prog_cnt = 1; > + err = bpf_prog_query(map_fd, attach_type, 0 /* query flags */, > + &attach_flags, prog_ids, &prog_cnt); > + > + CHECK(err, "bpf_prog_query", "failed\n"); > + CHECK(attach_flags != 0, "bpf_prog_query attach_flags", > + "wrong attach_flags on query: %u", attach_flags); > + CHECK(prog_cnt != 1, "bpf_prog_query prog_cnt", > + "wrong program count on query: %u", prog_cnt); > + CHECK(prog_ids[0] != query_prog_id(verdict_fd), "bpf_prog_query", > + "wrong prog_ids on query: %u", prog_ids[0]); [...]