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selftests/bpf: Run reuseport tests only with supported socket types 

SOCKMAP and SOCKHASH map types can be used with reuseport BPF programs but
don't support yet storing UDP sockets. Instead of marking UDP tests with
SOCK{MAP,HASH} as skipped, don't run them at all.

Skipped test might signal that the test environment is not suitable for
running the test, while in reality the functionality is not implemented in
the kernel yet.

Before:

  sh# ./test_progs -t select_reuseport
  …
  #40 select_reuseport:OK
  Summary: 1/126 PASSED, 30 SKIPPED, 0 FAILED

After:

  sh# ./test_progs  -t select_reuseport
  …
  #40 select_reuseport:OK
  Summary: 1/98 PASSED, 2 SKIPPED, 0 FAILED

The remaining two skipped tests are SYN cookies tests, which will be
addressed in the subsequent patch.

Fixes: 11318ba8ca ("selftests/bpf: Extend SK_REUSEPORT tests to cover SOCKMAP/SOCKHASH")
Reported-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Jakub Sitnicki <jakub@cloudflare.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200224135327.121542-1-jakub@cloudflare.com
This commit is contained in:
Jakub Sitnicki 2020-02-24 14:53:26 +01:00 committed by Alexei Starovoitov
parent 80a836c250
commit 779e422d11
1 changed files with 6 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
tools/testing/selftests/bpf/prog_tests/select_reuseport.c
View File

@ -807,6 +807,12 @@ static void test_config(int sotype, sa_family_t family, bool inany)
char s[MAX_TEST_NAME];
const struct test *t;
/* SOCKMAP/SOCKHASH don't support UDP yet */
if (sotype == SOCK_DGRAM &&
(inner_map_type == BPF_MAP_TYPE_SOCKMAP ||
inner_map_type == BPF_MAP_TYPE_SOCKHASH))
return;
for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
snprintf(s, sizeof(s), "%s %s/%s %s %s",
maptype_str(inner_map_type),
@ -816,13 +822,6 @@ static void test_config(int sotype, sa_family_t family, bool inany)
if (!test__start_subtest(s))
continue;
if (sotype == SOCK_DGRAM &&
inner_map_type != BPF_MAP_TYPE_REUSEPORT_SOCKARRAY) {
/* SOCKMAP/SOCKHASH don't support UDP yet */
test__skip();
continue;
}
setup_per_test(sotype, family, inany, t->no_inner_map);
t->fn(sotype, family);
cleanup_per_test(t->no_inner_map);