/* * * Copyright 2015, 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 #include #include #include #include #include #include "src/core/lib/iomgr/resolve_address.h" #include "src/core/lib/iomgr/socket_utils_posix.h" #include "src/core/lib/support/string.h" #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(intptr_t i) { return (void *)i; } static gpr_timespec ms_from_now(int ms) { return GRPC_TIMEOUT_MILLIS_TO_DEADLINE(ms); } static void drain_cq(grpc_completion_queue *cq) { grpc_event ev; do { ev = grpc_completion_queue_next(cq, ms_from_now(5000), NULL); } while (ev.type != GRPC_QUEUE_SHUTDOWN); } static void do_nothing(void *ignored) {} 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 *cq; grpc_call *c; grpc_call *s; cq_verifier *cqv; gpr_timespec deadline; int got_port; grpc_op ops[6]; grpc_op *op; grpc_metadata_array initial_metadata_recv; grpc_metadata_array trailing_metadata_recv; grpc_metadata_array request_metadata_recv; grpc_status_code status; grpc_call_error error; char *details = NULL; size_t details_capacity = 0; int was_cancelled = 2; grpc_call_details call_details; char *peer; int picked_port = 0; if (port == 0) { port = grpc_pick_unused_port_or_die(); picked_port = 1; } gpr_join_host_port(&server_hostport, server_host, port); grpc_metadata_array_init(&initial_metadata_recv); grpc_metadata_array_init(&trailing_metadata_recv); grpc_metadata_array_init(&request_metadata_recv); grpc_call_details_init(&call_details); /* Create server. */ cq = grpc_completion_queue_create(NULL); server = grpc_server_create(NULL, NULL); grpc_server_register_completion_queue(server, cq, NULL); GPR_ASSERT((got_port = grpc_server_add_insecure_http2_port( server, server_hostport)) > 0); if (port == 0) { port = got_port; } else { GPR_ASSERT(port == got_port); } grpc_server_start(server); cqv = cq_verifier_create(cq); /* Create client. */ if (client_host[0] == 'i') { /* for ipv4:/ipv6: addresses, concatenate the port to each of the parts */ size_t i; gpr_slice uri_slice; gpr_slice_buffer uri_parts; char **hosts_with_port; uri_slice = gpr_slice_new((char *)client_host, strlen(client_host), do_nothing); gpr_slice_buffer_init(&uri_parts); gpr_slice_split(uri_slice, ",", &uri_parts); hosts_with_port = gpr_malloc(sizeof(char *) * uri_parts.count); for (i = 0; i < uri_parts.count; i++) { char *uri_part_str = gpr_dump_slice(uri_parts.slices[i], GPR_DUMP_ASCII); gpr_asprintf(&hosts_with_port[i], "%s:%d", uri_part_str, port); gpr_free(uri_part_str); } client_hostport = gpr_strjoin_sep((const char **)hosts_with_port, uri_parts.count, ",", NULL); for (i = 0; i < uri_parts.count; i++) { gpr_free(hosts_with_port[i]); } gpr_free(hosts_with_port); gpr_slice_buffer_destroy(&uri_parts); gpr_slice_unref(uri_slice); } else { gpr_join_host_port(&client_hostport, client_host, port); } client = grpc_insecure_channel_create(client_hostport, NULL, NULL); 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, NULL, GRPC_PROPAGATE_DEFAULTS, cq, "/foo", "foo.test.google.fr", deadline, NULL); GPR_ASSERT(c); memset(ops, 0, sizeof(ops)); op = ops; op->op = GRPC_OP_SEND_INITIAL_METADATA; op->data.send_initial_metadata.count = 0; op->flags = expect_ok ? GRPC_INITIAL_METADATA_IGNORE_CONNECTIVITY : 0; op->reserved = NULL; op++; op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT; op->flags = 0; op->reserved = NULL; op++; op->op = GRPC_OP_RECV_INITIAL_METADATA; op->data.recv_initial_metadata = &initial_metadata_recv; op->flags = 0; op->reserved = NULL; op++; op->op = GRPC_OP_RECV_STATUS_ON_CLIENT; op->data.recv_status_on_client.trailing_metadata = &trailing_metadata_recv; op->data.recv_status_on_client.status = &status; op->data.recv_status_on_client.status_details = &details; op->data.recv_status_on_client.status_details_capacity = &details_capacity; op->flags = 0; op->reserved = NULL; op++; error = grpc_call_start_batch(c, ops, (size_t)(op - ops), tag(1), NULL); GPR_ASSERT(GRPC_CALL_OK == error); if (expect_ok) { /* Check for a successful request. */ error = grpc_server_request_call(server, &s, &call_details, &request_metadata_recv, cq, cq, tag(101)); GPR_ASSERT(GRPC_CALL_OK == error); cq_expect_completion(cqv, tag(101), 1); cq_verify(cqv); memset(ops, 0, sizeof(ops)); op = ops; op->op = GRPC_OP_SEND_INITIAL_METADATA; op->data.send_initial_metadata.count = 0; op->flags = 0; op++; op->op = GRPC_OP_SEND_STATUS_FROM_SERVER; op->data.send_status_from_server.trailing_metadata_count = 0; op->data.send_status_from_server.status = GRPC_STATUS_UNIMPLEMENTED; op->data.send_status_from_server.status_details = "xyz"; op->flags = 0; op++; op->op = GRPC_OP_RECV_CLOSE_ON_SERVER; op->data.recv_close_on_server.cancelled = &was_cancelled; op->flags = 0; op++; error = grpc_call_start_batch(s, ops, (size_t)(op - ops), tag(102), NULL); GPR_ASSERT(GRPC_CALL_OK == error); cq_expect_completion(cqv, tag(102), 1); cq_expect_completion(cqv, tag(1), 1); cq_verify(cqv); peer = grpc_call_get_peer(c); gpr_log(GPR_DEBUG, "got peer: '%s'", peer); gpr_free(peer); GPR_ASSERT(status == GRPC_STATUS_UNIMPLEMENTED); GPR_ASSERT(0 == strcmp(details, "xyz")); GPR_ASSERT(0 == strcmp(call_details.method, "/foo")); GPR_ASSERT(0 == strcmp(call_details.host, "foo.test.google.fr")); GPR_ASSERT(was_cancelled == 1); grpc_call_destroy(s); } else { /* Check for a failed connection. */ cq_expect_completion(cqv, tag(1), 1); cq_verify(cqv); GPR_ASSERT(status == GRPC_STATUS_UNAVAILABLE); } grpc_call_destroy(c); cq_verifier_destroy(cqv); /* Destroy client. */ grpc_channel_destroy(client); /* Destroy server. */ grpc_server_shutdown_and_notify(server, cq, tag(1000)); GPR_ASSERT(grpc_completion_queue_pluck( cq, tag(1000), GRPC_TIMEOUT_SECONDS_TO_DEADLINE(5), NULL) .type == GRPC_OP_COMPLETE); grpc_server_destroy(server); grpc_completion_queue_shutdown(cq); drain_cq(cq); grpc_completion_queue_destroy(cq); grpc_metadata_array_destroy(&initial_metadata_recv); grpc_metadata_array_destroy(&trailing_metadata_recv); grpc_metadata_array_destroy(&request_metadata_recv); grpc_call_details_destroy(&call_details); gpr_free(details); if (picked_port) { grpc_recycle_unused_port(port); } } int external_dns_works(const char *host) { grpc_resolved_addresses *res = NULL; grpc_error *error = grpc_blocking_resolve_address(host, "80", &res); GRPC_ERROR_UNREF(error); if (res != NULL) { grpc_resolved_addresses_destroy(res); return 1; } return 0; } int main(int argc, char **argv) { int do_ipv6 = 1; 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 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", 0, 1); test_connect("::", "::ffff:127.0.0.1", 0, 1); test_connect("::", "ipv4:127.0.0.1", 0, 1); test_connect("::", "ipv6:[::ffff:127.0.0.1]", 0, 1); test_connect("::", "localhost", 0, 1); test_connect("0.0.0.0", "127.0.0.1", 0, 1); test_connect("0.0.0.0", "::ffff:127.0.0.1", 0, 1); test_connect("0.0.0.0", "ipv4:127.0.0.1", 0, 1); test_connect("0.0.0.0", "ipv4:127.0.0.1,127.0.0.2,127.0.0.3", 0, 1); test_connect("0.0.0.0", "ipv6:[::ffff:127.0.0.1],[::ffff:127.0.0.2]", 0, 1); test_connect("0.0.0.0", "localhost", 0, 1); if (do_ipv6) { test_connect("::", "::1", 0, 1); test_connect("0.0.0.0", "::1", 0, 1); test_connect("::", "ipv6:[::1]", 0, 1); test_connect("0.0.0.0", "ipv6:[::1]", 0, 1); } /* These only work when the families agree. */ test_connect("127.0.0.1", "127.0.0.1", 0, 1); test_connect("127.0.0.1", "ipv4:127.0.0.1", 0, 1); if (do_ipv6) { test_connect("::1", "::1", 0, 1); test_connect("::1", "127.0.0.1", 0, 0); test_connect("127.0.0.1", "::1", 0, 0); test_connect("::1", "ipv6:[::1]", 0, 1); test_connect("::1", "ipv4:127.0.0.1", 0, 0); test_connect("127.0.0.1", "ipv6:[::1]", 0, 0); } if (!external_dns_works("loopback46.unittest.grpc.io")) { gpr_log(GPR_INFO, "Skipping tests that depend on *.unittest.grpc.io."); } else { test_connect("loopback46.unittest.grpc.io", "loopback4.unittest.grpc.io", 0, 1); test_connect("loopback4.unittest.grpc.io", "loopback46.unittest.grpc.io", 0, 1); if (do_ipv6) { test_connect("loopback46.unittest.grpc.io", "loopback6.unittest.grpc.io", 0, 1); test_connect("loopback6.unittest.grpc.io", "loopback46.unittest.grpc.io", 0, 1); test_connect("loopback4.unittest.grpc.io", "loopback6.unittest.grpc.io", 0, 0); test_connect("loopback6.unittest.grpc.io", "loopback4.unittest.grpc.io", 0, 0); } } } grpc_shutdown(); return 0; }