From: Ilya Leoshkevich <iii@linux.ibm.com>
To: Alexei Starovoitov <ast@kernel.org>,
Daniel Borkmann <daniel@iogearbox.net>
Cc: bpf@vger.kernel.org, Heiko Carstens <hca@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Ilya Leoshkevich <iii@linux.ibm.com>
Subject: [PATCH bpf-next 1/3] selftests/bpf: Fix endianness issue in test_sockopt_sk
Date: Thu, 10 Sep 2020 01:24:41 +0200 [thread overview]
Message-ID: <20200909232443.3099637-2-iii@linux.ibm.com> (raw)
In-Reply-To: <20200909232443.3099637-1-iii@linux.ibm.com>
getsetsockopt() calls getsockopt() with optlen == 1, but then checks
the resulting int. It is ok on little endian, but not on big endian.
Fix by checking char instead.
Fixes: 8a027dc0 ("selftests/bpf: add sockopt test that exercises sk helpers")
Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
---
tools/testing/selftests/bpf/prog_tests/sockopt_sk.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/bpf/prog_tests/sockopt_sk.c b/tools/testing/selftests/bpf/prog_tests/sockopt_sk.c
index 5f54c6aec7f0..ba4da50987d6 100644
--- a/tools/testing/selftests/bpf/prog_tests/sockopt_sk.c
+++ b/tools/testing/selftests/bpf/prog_tests/sockopt_sk.c
@@ -45,7 +45,7 @@ static int getsetsockopt(void)
goto err;
}
- if (*(int *)big_buf != 0x08) {
+ if (*big_buf != 0x08) {
log_err("Unexpected getsockopt(IP_TOS) optval 0x%x != 0x08",
*(int *)big_buf);
goto err;
--
2.25.4
next prev parent reply other threads:[~2020-09-10 2:52 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-09 23:24 [PATCH bpf-next 0/3] Fix three endianness issues in test_progs Ilya Leoshkevich
2020-09-09 23:24 ` Ilya Leoshkevich [this message]
2020-09-10 16:49 ` [PATCH bpf-next 1/3] selftests/bpf: Fix endianness issue in test_sockopt_sk Andrii Nakryiko
2020-09-09 23:24 ` [PATCH bpf-next 2/3] selftests/bpf: Fix endianness issues in sk_lookup/ctx_narrow_access Ilya Leoshkevich
2020-09-10 16:55 ` Andrii Nakryiko
2020-09-23 21:12 ` Ilya Leoshkevich
2020-09-24 7:49 ` Jakub Sitnicki
2020-09-24 9:24 ` Jakub Sitnicki
2020-09-09 23:24 ` [PATCH bpf-next 3/3] selftests/bpf: Fix endianness issue in sk_assign Ilya Leoshkevich
2020-09-10 16:56 ` Andrii Nakryiko
2020-09-10 16:58 ` [PATCH bpf-next 0/3] Fix three endianness issues in test_progs Andrii Nakryiko
2020-09-10 21:55 ` Ilya Leoshkevich
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