static void test_mirror(void) { int send_sock[2], recv_sock; char *cmdline; uint32_t ret = 0, len = 0; char send_buf[] = "Hello! filter-mirror~"; char sock_path[] = "filter-mirror.XXXXXX"; char *recv_buf; uint32_t size = sizeof(send_buf); size = htonl(size); ret = socketpair(PF_UNIX, SOCK_STREAM, 0, send_sock); g_assert_cmpint(ret, !=, -1); ret = mkstemp(sock_path); g_assert_cmpint(ret, !=, -1); cmdline = g_strdup_printf("-netdev socket,id=qtest-bn0,fd=%d " "-device e1000,netdev=qtest-bn0,id=qtest-e0 " "-chardev socket,id=mirror0,path=%s,server,nowait " "-object filter-mirror,id=qtest-f0,netdev=qtest-bn0,queue=tx,outdev=mirror0 " , send_sock[1], sock_path); qtest_start(cmdline); g_free(cmdline); recv_sock = unix_connect(sock_path, NULL); g_assert_cmpint(recv_sock, !=, -1); struct iovec iov[] = { { .iov_base = &size, .iov_len = sizeof(size), }, { .iov_base = send_buf, .iov_len = sizeof(send_buf), }, }; /* send a qmp command to guarantee that 'connected' is setting to true. */ qmp_discard_response("{ 'execute' : 'query-status'}"); ret = iov_send(send_sock[0], iov, 2, 0, sizeof(size) + sizeof(send_buf)); g_assert_cmpint(ret, ==, sizeof(send_buf) + sizeof(size)); close(send_sock[0]); ret = qemu_recv(recv_sock, &len, sizeof(len), 0); g_assert_cmpint(ret, ==, sizeof(len)); len = ntohl(len); g_assert_cmpint(len, ==, sizeof(send_buf)); recv_buf = g_malloc(len); ret = qemu_recv(recv_sock, recv_buf, len, 0); g_assert_cmpstr(recv_buf, ==, send_buf); g_free(recv_buf); close(recv_sock); unlink(sock_path); }