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selftest/bpf: Add test for vsock removal from sockmap on close()

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Make sure the proto::close callback gets invoked on vsock release.

Signed-off-by: Michal Luczaj <mhal@rbox.co>
Acked-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20241118-vsock-bpf-poll-close-v1-4-f1b9669cacdc@rbox.co
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: John Fastabend <john.fastabend@gmail.com>
This commit is contained in:
Michal Luczaj 2024-11-18 22:03:44 +01:00 committed by Alexei Starovoitov
parent 135ffc7bec
commit 515745445e
1 changed files with 31 additions and 0 deletions
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31
tools/testing/selftests/bpf/prog_tests/sockmap_basic.c
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@ -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;
@ -987,6 +1016,8 @@ 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"))