diff mbox series

[bpf-next,v3,6/6] selftests/bpf: Monitor traffic for select_reuseport.

Message ID 20240730002745.1484204-7-thinker.li@gmail.com (mailing list archive)
State Superseded
Delegated to: BPF
Headers show
Series monitor network traffic for flaky test cases | expand

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netdev/header_inline success No static functions without inline keyword in header files
netdev/build_32bit success Errors and warnings before: 7 this patch: 7
netdev/build_tools success Errors and warnings before: 10 this patch: 10
netdev/cc_maintainers warning 10 maintainers not CCed: kpsingh@kernel.org shuah@kernel.org haoluo@google.com daniel@iogearbox.net john.fastabend@gmail.com jolsa@kernel.org linux-kselftest@vger.kernel.org yonghong.song@linux.dev mykolal@fb.com eddyz87@gmail.com
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bpf/vmtest-bpf-next-PR fail merge-conflict

Commit Message

Kui-Feng Lee July 30, 2024, 12:27 a.m. UTC 
Enable traffic monitoring for the subtests of select_reuseport.

Signed-off-by: Kui-Feng Lee <thinker.li@gmail.com>
---
 .../bpf/prog_tests/select_reuseport.c         | 39 +++++++------------
 1 file changed, 15 insertions(+), 24 deletions(-)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c
index 64c5f5eb2994..1bb29137cd0a 100644
--- a/tools/testing/selftests/bpf/prog_tests/select_reuseport.c
+++ b/tools/testing/selftests/bpf/prog_tests/select_reuseport.c
@@ -37,9 +37,7 @@  static int sk_fds[REUSEPORT_ARRAY_SIZE];
 static int reuseport_array = -1, outer_map = -1;
 static enum bpf_map_type inner_map_type;
 static int select_by_skb_data_prog;
-static int saved_tcp_syncookie = -1;
 static struct bpf_object *obj;
-static int saved_tcp_fo = -1;
 static __u32 index_zero;
 static int epfd;
 
@@ -193,14 +191,6 @@  static int write_int_sysctl(const char *sysctl, int v)
 	return 0;
 }
 
-static void restore_sysctls(void)
-{
-	if (saved_tcp_fo != -1)
-		write_int_sysctl(TCP_FO_SYSCTL, saved_tcp_fo);
-	if (saved_tcp_syncookie != -1)
-		write_int_sysctl(TCP_SYNCOOKIE_SYSCTL, saved_tcp_syncookie);
-}
-
 static int enable_fastopen(void)
 {
 	int fo;
@@ -795,6 +785,7 @@  static void test_config(int sotype, sa_family_t family, bool inany)
 	};
 	char s[MAX_TEST_NAME];
 	const struct test *t;
+	struct netns_obj *netns;
 
 	for (t = tests; t < tests + ARRAY_SIZE(tests); t++) {
 		if (t->need_sotype && t->need_sotype != sotype)
@@ -808,9 +799,23 @@  static void test_config(int sotype, sa_family_t family, bool inany)
 		if (!test__start_subtest(s))
 			continue;
 
+		netns = netns_new("test", true);
+		if (!ASSERT_OK_PTR(netns, "netns_new"))
+			continue;
+
+		system("ip link set dev lo up");
+
+		if (CHECK_FAIL(enable_fastopen()))
+			goto out;
+		if (CHECK_FAIL(disable_syncookie()))
+			goto out;
+
 		setup_per_test(sotype, family, inany, t->no_inner_map);
 		t->fn(sotype, family);
 		cleanup_per_test(t->no_inner_map);
+
+out:
+		netns_free(netns);
 	}
 }
 
@@ -850,21 +855,7 @@  void test_map_type(enum bpf_map_type mt)
 
 void serial_test_select_reuseport(void)
 {
-	saved_tcp_fo = read_int_sysctl(TCP_FO_SYSCTL);
-	if (saved_tcp_fo < 0)
-		goto out;
-	saved_tcp_syncookie = read_int_sysctl(TCP_SYNCOOKIE_SYSCTL);
-	if (saved_tcp_syncookie < 0)
-		goto out;
-
-	if (enable_fastopen())
-		goto out;
-	if (disable_syncookie())
-		goto out;
-
 	test_map_type(BPF_MAP_TYPE_REUSEPORT_SOCKARRAY);
 	test_map_type(BPF_MAP_TYPE_SOCKMAP);
 	test_map_type(BPF_MAP_TYPE_SOCKHASH);
-out:
-	restore_sysctls();
 }