selftests/bpf: Use start_server_str in test_tcp_check_syncookie_user

Since start_server_str() is added now, it can be used in script
test_tcp_check_syncookie_user.c instead of start_server_addr() to
simplify the code.

Acked-by: Eduard Zingerman <eddyz87@gmail.com>
Signed-off-by: Geliang Tang <tanggeliang@kylinos.cn>
Link: https://lore.kernel.org/r/5d2f442261d37cff16c1f1b21a2b188508ab67fa.1718932493.git.tanggeliang@kylinos.cn
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

diff --git a/tools/testing/selftests/bpf/test_tcp_check_syncookie_user.c b/tools/testing/selftests/bpf/test_tcp_check_syncookie_user.c
index aebc58c..3844f9b 100644 (file)
--- a/tools/testing/selftests/bpf/test_tcp_check_syncookie_user.c
+++ b/tools/testing/selftests/bpf/test_tcp_check_syncookie_user.c
@@ -156,10 +156,6 @@ static int v6only_false(int fd, void *opts)
 int main(int argc, char **argv)
 {
        struct network_helper_opts opts = { 0 };
-       struct sockaddr_in addr4;
-       struct sockaddr_in6 addr6;
-       struct sockaddr_in addr4dual;
-       struct sockaddr_in6 addr6dual;
        int server = -1;
        int server_v6 = -1;
        int server_dual = -1;
@@ -181,36 +177,17 @@ int main(int argc, char **argv)
                goto err;
        }
 
-       memset(&addr4, 0, sizeof(addr4));
-       addr4.sin_family = AF_INET;
-       addr4.sin_addr.s_addr = htonl(INADDR_LOOPBACK);
-       addr4.sin_port = 0;
-       memcpy(&addr4dual, &addr4, sizeof(addr4dual));
-
-       memset(&addr6, 0, sizeof(addr6));
-       addr6.sin6_family = AF_INET6;
-       addr6.sin6_addr = in6addr_loopback;
-       addr6.sin6_port = 0;
-
-       memset(&addr6dual, 0, sizeof(addr6dual));
-       addr6dual.sin6_family = AF_INET6;
-       addr6dual.sin6_addr = in6addr_any;
-       addr6dual.sin6_port = 0;
-
-       server = start_server_addr(SOCK_STREAM, (struct sockaddr_storage *)&addr4,
-                                  sizeof(addr4), NULL);
+       server = start_server_str(AF_INET, SOCK_STREAM, "127.0.0.1", 0, NULL);
        if (server == -1)
                goto err;
 
        opts.post_socket_cb = v6only_true;
-       server_v6 = start_server_addr(SOCK_STREAM, (struct sockaddr_storage *)&addr6,
-                                     sizeof(addr6), &opts);
+       server_v6 = start_server_str(AF_INET6, SOCK_STREAM, "::1", 0, &opts);
        if (server_v6 == -1)
                goto err;
 
        opts.post_socket_cb = v6only_false;
-       server_dual = start_server_addr(SOCK_STREAM, (struct sockaddr_storage *)&addr6dual,
-                                       sizeof(addr6dual), &opts);
+       server_dual = start_server_str(AF_INET6, SOCK_STREAM, "::0", 0, &opts);
        if (server_dual == -1)
                goto err;