/* * * Copyright 2014, Google Inc. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc. nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. * */ #include "src/core/iomgr/socket_utils_posix.h" #include #include #include #include #include "test/core/end2end/cq_verifier.h" #include "test/core/util/port.h" #include "test/core/util/test_config.h" /* This test exercises IPv4, IPv6, and dualstack sockets in various ways. */ static void *tag(gpr_intptr i) { return (void *)i; } static gpr_timespec ms_from_now(int ms) { return gpr_time_add(gpr_now(), gpr_time_from_micros(GPR_US_PER_MS * ms)); } static void drain_cq(grpc_completion_queue *cq) { grpc_event *ev; grpc_completion_type type; do { ev = grpc_completion_queue_next(cq, ms_from_now(5000)); GPR_ASSERT(ev); type = ev->type; grpc_event_finish(ev); gpr_log(GPR_INFO, "Drained event type %d", type); } while (type != GRPC_QUEUE_SHUTDOWN); } void test_connect(const char *server_host, const char *client_host, int port, int expect_ok) { char *client_hostport; char *server_hostport; grpc_channel *client; grpc_server *server; grpc_completion_queue *client_cq; grpc_completion_queue *server_cq; grpc_call *c; grpc_call *s; cq_verifier *v_client; cq_verifier *v_server; gpr_timespec deadline; int got_port; gpr_join_host_port(&server_hostport, server_host, port); /* Create server. */ server_cq = grpc_completion_queue_create(); server = grpc_server_create(server_cq, NULL); GPR_ASSERT((got_port = grpc_server_add_http2_port(server, server_hostport)) > 0); if (port == 0) { port = got_port; } else { GPR_ASSERT(port == got_port); } grpc_server_start(server); v_server = cq_verifier_create(server_cq); /* Create client. */ gpr_join_host_port(&client_hostport, client_host, port); client_cq = grpc_completion_queue_create(); client = grpc_channel_create(client_hostport, NULL); v_client = cq_verifier_create(client_cq); gpr_log(GPR_INFO, "Testing with server=%s client=%s (expecting %s)", server_hostport, client_hostport, expect_ok ? "success" : "failure"); gpr_free(client_hostport); gpr_free(server_hostport); if (expect_ok) { /* Normal deadline, shouldn't be reached. */ deadline = ms_from_now(60000); } else { /* Give up faster when failure is expected. BUG: Setting this to 1000 reveals a memory leak (b/18608927). */ deadline = ms_from_now(1500); } /* Send a trivial request. */ c = grpc_channel_create_call(client, "/foo", "test.google.com", deadline); GPR_ASSERT(c); GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_invoke(c, client_cq, tag(1), tag(2), tag(3), 0)); if (expect_ok) { /* Check for a successful request. */ cq_expect_invoke_accepted(v_client, tag(1), GRPC_OP_OK); cq_verify(v_client); GPR_ASSERT(GRPC_CALL_OK == grpc_call_writes_done(c, tag(4))); cq_expect_finish_accepted(v_client, tag(4), GRPC_OP_OK); cq_verify(v_client); GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call(server, tag(100))); cq_expect_server_rpc_new(v_server, &s, tag(100), "/foo", "test.google.com", deadline, NULL); cq_verify(v_server); GPR_ASSERT(GRPC_CALL_OK == grpc_call_server_accept(s, server_cq, tag(102))); GPR_ASSERT(GRPC_CALL_OK == grpc_call_server_end_initial_metadata(s, 0)); cq_expect_client_metadata_read(v_client, tag(2), NULL); cq_verify(v_client); GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_write_status(s, GRPC_STATUS_UNIMPLEMENTED, "xyz", tag(5))); cq_expect_finished_with_status(v_client, tag(3), GRPC_STATUS_UNIMPLEMENTED, "xyz", NULL); cq_verify(v_client); cq_expect_finish_accepted(v_server, tag(5), GRPC_OP_OK); cq_verify(v_server); cq_expect_finished(v_server, tag(102), NULL); cq_verify(v_server); grpc_call_destroy(c); grpc_call_destroy(s); } else { /* Check for a failed connection. */ cq_expect_invoke_accepted(v_client, tag(1), GRPC_OP_ERROR); cq_expect_client_metadata_read(v_client, tag(2), NULL); cq_expect_finished_with_status(v_client, tag(3), GRPC_STATUS_DEADLINE_EXCEEDED, "Deadline Exceeded", NULL); cq_verify(v_client); grpc_call_destroy(c); } cq_verifier_destroy(v_client); cq_verifier_destroy(v_server); /* Destroy client. */ grpc_channel_destroy(client); grpc_completion_queue_shutdown(client_cq); drain_cq(client_cq); grpc_completion_queue_destroy(client_cq); /* Destroy server. */ grpc_server_shutdown(server); grpc_server_destroy(server); grpc_completion_queue_shutdown(server_cq); drain_cq(server_cq); grpc_completion_queue_destroy(server_cq); } int main(int argc, char **argv) { int do_ipv6 = 1; int fixed_port; grpc_test_init(argc, argv); grpc_init(); if (!grpc_ipv6_loopback_available()) { gpr_log(GPR_INFO, "Can't bind to ::1. Skipping IPv6 tests."); do_ipv6 = 0; } for (fixed_port = 0; fixed_port <= 1; fixed_port++) { int port = fixed_port ? grpc_pick_unused_port_or_die() : 0; /* For coverage, test with and without dualstack sockets. */ for (grpc_forbid_dualstack_sockets_for_testing = 0; grpc_forbid_dualstack_sockets_for_testing <= 1; grpc_forbid_dualstack_sockets_for_testing++) { /* :: and 0.0.0.0 are handled identically. */ test_connect("::", "127.0.0.1", port, 1); test_connect("::", "::ffff:127.0.0.1", port, 1); test_connect("::", "localhost", port, 1); test_connect("0.0.0.0", "127.0.0.1", port, 1); test_connect("0.0.0.0", "::ffff:127.0.0.1", port, 1); test_connect("0.0.0.0", "localhost", port, 1); if (do_ipv6) { test_connect("::", "::1", port, 1); test_connect("0.0.0.0", "::1", port, 1); } /* These only work when the families agree. */ test_connect("127.0.0.1", "127.0.0.1", port, 1); if (do_ipv6) { test_connect("::1", "::1", port, 1); test_connect("::1", "127.0.0.1", port, 0); test_connect("127.0.0.1", "::1", port, 0); } } } grpc_shutdown(); return 0; }