From: Martin KaFai Lau <kafai@fb.com>
To: <bpf@vger.kernel.org>, <netdev@vger.kernel.org>
Cc: Alexei Starovoitov <ast@fb.com>,
Daniel Borkmann <daniel@iogearbox.net>,
David Miller <davem@davemloft.net>, <kernel-team@fb.com>,
Stanislav Fomichev <sdf@fomichev.me>
Subject: [PATCH v3 bpf-next 3/3] bpf: Add test for SO_REUSEPORT_DETACH_BPF
Date: Thu, 13 Jun 2019 15:00:05 -0700 [thread overview]
Message-ID: <20190613220005.3095815-1-kafai@fb.com> (raw)
In-Reply-To: <20190613215959.3095374-1-kafai@fb.com>
This patch adds a test for the new sockopt SO_REUSEPORT_DETACH_BPF.
Signed-off-by: Martin KaFai Lau <kafai@fb.com>
---
.../selftests/bpf/test_select_reuseport.c | 54 +++++++++++++++++++
1 file changed, 54 insertions(+)
diff --git a/tools/testing/selftests/bpf/test_select_reuseport.c b/tools/testing/selftests/bpf/test_select_reuseport.c
index 75646d9b34aa..7566c13eb51a 100644
--- a/tools/testing/selftests/bpf/test_select_reuseport.c
+++ b/tools/testing/selftests/bpf/test_select_reuseport.c
@@ -523,6 +523,58 @@ static void test_pass_on_err(int type, sa_family_t family)
printf("OK\n");
}
+static void test_detach_bpf(int type, sa_family_t family)
+{
+#ifdef SO_DETACH_REUSEPORT_BPF
+ __u32 nr_run_before = 0, nr_run_after = 0, tmp, i;
+ struct epoll_event ev;
+ int cli_fd, err, nev;
+ struct cmd cmd = {};
+ int optvalue = 0;
+
+ printf("%s: ", __func__);
+ err = setsockopt(sk_fds[0], SOL_SOCKET, SO_DETACH_REUSEPORT_BPF,
+ &optvalue, sizeof(optvalue));
+ CHECK(err == -1, "setsockopt(SO_DETACH_REUSEPORT_BPF)",
+ "err:%d errno:%d\n", err, errno);
+
+ err = setsockopt(sk_fds[1], SOL_SOCKET, SO_DETACH_REUSEPORT_BPF,
+ &optvalue, sizeof(optvalue));
+ CHECK(err == 0 || errno != ENOENT, "setsockopt(SO_DETACH_REUSEPORT_BPF)",
+ "err:%d errno:%d\n", err, errno);
+
+ for (i = 0; i < NR_RESULTS; i++) {
+ err = bpf_map_lookup_elem(result_map, &i, &tmp);
+ CHECK(err == -1, "lookup_elem(result_map)",
+ "i:%u err:%d errno:%d\n", i, err, errno);
+ nr_run_before += tmp;
+ }
+
+ cli_fd = send_data(type, family, &cmd, sizeof(cmd), PASS);
+ nev = epoll_wait(epfd, &ev, 1, 5);
+ CHECK(nev <= 0, "nev <= 0",
+ "nev:%d expected:1 type:%d family:%d data:(0, 0)\n",
+ nev, type, family);
+
+ for (i = 0; i < NR_RESULTS; i++) {
+ err = bpf_map_lookup_elem(result_map, &i, &tmp);
+ CHECK(err == -1, "lookup_elem(result_map)",
+ "i:%u err:%d errno:%d\n", i, err, errno);
+ nr_run_after += tmp;
+ }
+
+ CHECK(nr_run_before != nr_run_after,
+ "nr_run_before != nr_run_after",
+ "nr_run_before:%u nr_run_after:%u\n",
+ nr_run_before, nr_run_after);
+
+ printf("OK\n");
+ close(cli_fd);
+#else
+ printf("%s: SKIP\n", __func__);
+#endif
+}
+
static void prepare_sk_fds(int type, sa_family_t family, bool inany)
{
const int first = REUSEPORT_ARRAY_SIZE - 1;
@@ -664,6 +716,8 @@ static void test_all(void)
test_pass(type, family);
test_syncookie(type, family);
test_pass_on_err(type, family);
+ /* Must be the last test */
+ test_detach_bpf(type, family);
cleanup_per_test();
printf("\n");
--
2.17.1
next prev parent reply other threads:[~2019-06-13 22:00 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-13 21:59 [PATCH v3 bpf-next 0/3] bpf: net: Detach BPF prog from reuseport sk Martin KaFai Lau
2019-06-13 22:00 ` [PATCH v3 bpf-next 1/3] bpf: net: Add SO_DETACH_REUSEPORT_BPF Martin KaFai Lau
2019-06-13 22:00 ` [PATCH v3 bpf-next 2/3] bpf: Sync asm-generic/socket.h to tools/ Martin KaFai Lau
2019-06-13 22:00 ` Martin KaFai Lau [this message]
2019-06-13 22:13 ` [PATCH v3 bpf-next 0/3] bpf: net: Detach BPF prog from reuseport sk Stanislav Fomichev
2019-06-14 23:22 ` Daniel Borkmann
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