[PATCH net 5/5] vsock/test: Add test for connect() retries
From: Michal Luczaj <hidden>
Date: 2025-01-17 22:00:20
Subsystem:
the rest, vm sockets (af_vsock) · Maintainers:
Linus Torvalds, Stefano Garzarella
Deliberately fail a connect() attempt; expect error. Then verify that subsequent attempt (using the same socket) can still succeed, rather than fail outright. Signed-off-by: Michal Luczaj <redacted> --- tools/testing/vsock/vsock_test.c | 52 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 52 insertions(+)
diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c
index 7f1916e23858b5ba407c34742a05b7bd6cfdcc10..712650f993e9df68ceb68ae02334c2775be09c7c 100644
--- a/tools/testing/vsock/vsock_test.c
+++ b/tools/testing/vsock/vsock_test.c@@ -1520,6 +1520,53 @@ static void test_seqpacket_transport_uaf_server(const struct test_opts *opts) control_expectln("DONE"); } +static void test_stream_connect_retry_client(const struct test_opts *opts) +{ + struct sockaddr_vm addr = { + .svm_family = AF_VSOCK, + .svm_cid = opts->peer_cid, + .svm_port = opts->peer_port + }; + int s, alen = sizeof(addr); + + s = socket(AF_VSOCK, SOCK_STREAM, 0); + if (s < 0) { + perror("socket"); + exit(EXIT_FAILURE); + } + + if (!connect(s, (struct sockaddr *)&addr, alen)) { + fprintf(stderr, "Unexpected connect() #1 success\n"); + exit(EXIT_FAILURE); + } + + control_writeln("LISTEN"); + control_expectln("LISTENING"); + + if (connect(s, (struct sockaddr *)&addr, alen)) { + perror("connect() #2"); + exit(EXIT_FAILURE); + } + + close(s); +} + +static void test_stream_connect_retry_server(const struct test_opts *opts) +{ + int fd; + + control_expectln("LISTEN"); + + fd = vsock_stream_accept(VMADDR_CID_ANY, opts->peer_port, NULL); + if (fd < 0) { + perror("accept"); + exit(EXIT_FAILURE); + } + + vsock_wait_remote_close(fd); + close(fd); +} + static struct test_case test_cases[] = { { .name = "SOCK_STREAM connection reset",
@@ -1655,6 +1702,11 @@ static struct test_case test_cases[] = { .run_client = test_seqpacket_transport_uaf_client, .run_server = test_seqpacket_transport_uaf_server, }, + { + .name = "connectible retry failed connect()", + .run_client = test_stream_connect_retry_client, + .run_server = test_stream_connect_retry_server, + }, {}, };
--
2.47.1