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/*
*
* 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 <string.h>
#include "src/core/iomgr/socket_utils_posix.h"
#include <grpc/grpc.h>
#include <grpc/support/alloc.h>
#include <grpc/support/host_port.h>
#include <grpc/support/log.h>
#include <grpc/support/string_util.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(gpr_intptr 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));
} while (ev.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 *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;
char *details = NULL;
size_t details_capacity = 0;
int was_cancelled = 2;
grpc_call_details call_details;
char *peer;
if (port == 0) {
port = grpc_pick_unused_port_or_die();
}
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();
server = grpc_server_create(NULL);
grpc_server_register_completion_queue(server, cq);
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);
cqv = cq_verifier_create(cq);
/* Create client. */
if (client_host[0] == 'i') {
/* for ipv4:/ipv6: addresses, just concatenate the port */
gpr_asprintf(&client_hostport, "%s:%d", client_host, port);
} else {
gpr_join_host_port(&client_hostport, client_host, port);
}
client = grpc_insecure_channel_create(client_hostport, 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, cq, "/foo", "foo.test.google.fr",
deadline);
GPR_ASSERT(c);
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_CLOSE_FROM_CLIENT;
op->flags = 0;
op++;
op->op = GRPC_OP_RECV_INITIAL_METADATA;
op->data.recv_initial_metadata = &initial_metadata_recv;
op->flags = 0;
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++;
GPR_ASSERT(GRPC_CALL_OK == grpc_call_start_batch(c, ops, op - ops, tag(1)));
if (expect_ok) {
/* Check for a successful request. */
GPR_ASSERT(GRPC_CALL_OK == grpc_server_request_call(
server, &s, &call_details,
&request_metadata_recv, cq, cq, tag(101)));
cq_expect_completion(cqv, tag(101), 1);
cq_verify(cqv);
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++;
GPR_ASSERT(GRPC_CALL_OK ==
grpc_call_start_batch(s, ops, op - ops, tag(102)));
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_DEADLINE_EXCEEDED);
}
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))
.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);
}
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", "ipv6:[::ffff:127.0.0.1]", 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);
}
}
grpc_shutdown();
return 0;
}
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