Verify that vsock's poll() notices when sk_psock::ingress_msg isn't empty.
Signed-off-by: Michal Luczaj mhal@rbox.co --- .../selftests/bpf/prog_tests/sockmap_basic.c | 46 ++++++++++++++++++++++ 1 file changed, 46 insertions(+)
diff --git a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c index 82bfb266741cfaceafa2a407cd2ccc937708c613..21d1e2e2308433e7475952dcab034e92f2f6101a 100644 --- a/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c +++ b/tools/testing/selftests/bpf/prog_tests/sockmap_basic.c @@ -885,6 +885,50 @@ static void test_sockmap_same_sock(void) test_sockmap_pass_prog__destroy(skel); }
+static void test_sockmap_skb_verdict_vsock_poll(void) +{ + struct test_sockmap_pass_prog *skel; + int err, map, conn, peer; + struct bpf_program *prog; + struct bpf_link *link; + char buf = 'x'; + int zero = 0; + + skel = test_sockmap_pass_prog__open_and_load(); + if (!ASSERT_OK_PTR(skel, "open_and_load")) + return; + + if (create_pair(AF_VSOCK, SOCK_STREAM, &conn, &peer)) + goto destroy; + + prog = skel->progs.prog_skb_verdict; + map = bpf_map__fd(skel->maps.sock_map_rx); + link = bpf_program__attach_sockmap(prog, map); + if (!ASSERT_OK_PTR(link, "bpf_program__attach_sockmap")) + goto close; + + err = bpf_map_update_elem(map, &zero, &conn, BPF_ANY); + if (!ASSERT_OK(err, "bpf_map_update_elem")) + goto detach; + + if (xsend(peer, &buf, 1, 0) != 1) + goto detach; + + err = poll_read(conn, IO_TIMEOUT_SEC); + if (!ASSERT_OK(err, "poll")) + goto detach; + + if (xrecv_nonblock(conn, &buf, 1, 0) != 1) + FAIL("xrecv_nonblock"); +detach: + bpf_link__detach(link); +close: + xclose(conn); + xclose(peer); +destroy: + test_sockmap_pass_prog__destroy(skel); +} + void test_sockmap_basic(void) { if (test__start_subtest("sockmap create_update_free")) @@ -943,4 +987,6 @@ void test_sockmap_basic(void) test_skmsg_helpers_with_link(BPF_MAP_TYPE_SOCKMAP); if (test__start_subtest("sockhash sk_msg attach sockhash helpers with link")) test_skmsg_helpers_with_link(BPF_MAP_TYPE_SOCKHASH); + if (test__start_subtest("sockmap skb_verdict vsock poll")) + test_sockmap_skb_verdict_vsock_poll(); }