diff mbox series

[bpf,4/4] selftest/bpf: Add test for vsock removal from sockmap on close()

Message ID 20241118-vsock-bpf-poll-close-v1-4-f1b9669cacdc@rbox.co (mailing list archive)
State New
Delegated to: BPF
Headers show
Series bpf, vsock: Fix poll() and close() | expand

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Commit Message

Michal Luczaj Nov. 18, 2024, 9:03 p.m. UTC 
Make sure the proto::close callback gets invoked on vsock release.

Signed-off-by: Michal Luczaj <mhal@rbox.co>
---
 .../selftests/bpf/prog_tests/sockmap_basic.c       | 31 ++++++++++++++++++++++
 1 file changed, 31 insertions(+)
diff mbox series

Patch

diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
index 21d1e2e2308433e7475952dcab034e92f2f6101a..c502e1590dcc1d8b06c82673e060839479d99590 100644
--- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
+++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
@@ -108,6 +108,35 @@  static void test_sockmap_create_update_free(enum bpf_map_type map_type)
 	close(s);
 }
 
+static void test_sockmap_vsock_delete_on_close(void)
+{
+	int err, c, p, map;
+	const int zero = 0;
+
+	err = create_pair(AF_VSOCK, SOCK_STREAM, &c, &p);
+	if (!ASSERT_OK(err, "create_pair(AF_VSOCK)"))
+		return;
+
+	map = bpf_map_create(BPF_MAP_TYPE_SOCKMAP, NULL, sizeof(int),
+			     sizeof(int), 1, NULL);
+	if (!ASSERT_GE(map, 0, "bpf_map_create")) {
+		close(c);
+		goto out;
+	}
+
+	err = bpf_map_update_elem(map, &zero, &c, BPF_NOEXIST);
+	close(c);
+	if (!ASSERT_OK(err, "bpf_map_update"))
+		goto out;
+
+	err = bpf_map_update_elem(map, &zero, &p, BPF_NOEXIST);
+	ASSERT_OK(err, "after close(), bpf_map_update");
+
+out:
+	close(p);
+	close(map);
+}
+
 static void test_skmsg_helpers(enum bpf_map_type map_type)
 {
 	struct test_skmsg_load_helpers *skel;
@@ -935,6 +964,8 @@  void test_sockmap_basic(void)
 		test_sockmap_create_update_free(BPF_MAP_TYPE_SOCKMAP);
 	if (test__start_subtest("sockhash create_update_free"))
 		test_sockmap_create_update_free(BPF_MAP_TYPE_SOCKHASH);
+	if (test__start_subtest("sockmap vsock delete on close"))
+		test_sockmap_vsock_delete_on_close();
 	if (test__start_subtest("sockmap sk_msg load helpers"))
 		test_skmsg_helpers(BPF_MAP_TYPE_SOCKMAP);
 	if (test__start_subtest("sockhash sk_msg load helpers"))