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/*
*
* Copyright 2017 gRPC authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
#include "test/core/end2end/end2end_tests.h"
#include <string.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>
#include <grpc/support/sync.h>
#include <grpc/support/thd.h>
#include <grpc/support/time.h>
#include <grpc/support/useful.h>
#include "test/core/end2end/cq_verifier.h"
#define MAX_PING_STRIKES 1
static void *tag(intptr_t t) { return (void *)t; }
static void drain_cq(grpc_completion_queue *cq) {
grpc_event ev;
do {
ev = grpc_completion_queue_next(cq, grpc_timeout_seconds_to_deadline(5),
NULL);
} while (ev.type != GRPC_QUEUE_SHUTDOWN);
}
static void shutdown_server(grpc_end2end_test_fixture *f) {
if (!f->server) return;
grpc_server_destroy(f->server);
f->server = NULL;
}
static void shutdown_client(grpc_end2end_test_fixture *f) {
if (!f->client) return;
grpc_channel_destroy(f->client);
f->client = NULL;
}
static void end_test(grpc_end2end_test_fixture *f) {
shutdown_server(f);
shutdown_client(f);
grpc_completion_queue_shutdown(f->cq);
drain_cq(f->cq);
grpc_completion_queue_destroy(f->cq);
grpc_completion_queue_destroy(f->shutdown_cq);
}
static void test_bad_ping(grpc_end2end_test_config config) {
grpc_end2end_test_fixture f = config.create_fixture(NULL, NULL);
cq_verifier *cqv = cq_verifier_create(f.cq);
grpc_arg client_a[] = {
{.type = GRPC_ARG_INTEGER,
.key = GRPC_ARG_HTTP2_MIN_SENT_PING_INTERVAL_WITHOUT_DATA_MS,
.value.integer = 10},
{.type = GRPC_ARG_INTEGER,
.key = GRPC_ARG_HTTP2_MAX_PINGS_WITHOUT_DATA,
.value.integer = 0},
{.type = GRPC_ARG_INTEGER,
.key = GRPC_ARG_HTTP2_BDP_PROBE,
.value.integer = 0}};
grpc_arg server_a[] = {
{.type = GRPC_ARG_INTEGER,
.key = GRPC_ARG_HTTP2_MIN_RECV_PING_INTERVAL_WITHOUT_DATA_MS,
.value.integer = 300000 /* 5 minutes */},
{.type = GRPC_ARG_INTEGER,
.key = GRPC_ARG_HTTP2_MAX_PING_STRIKES,
.value.integer = MAX_PING_STRIKES},
{.type = GRPC_ARG_INTEGER,
.key = GRPC_ARG_HTTP2_BDP_PROBE,
.value.integer = 0}};
grpc_channel_args client_args = {.num_args = GPR_ARRAY_SIZE(client_a),
.args = client_a};
grpc_channel_args server_args = {.num_args = GPR_ARRAY_SIZE(server_a),
.args = server_a};
config.init_client(&f, &client_args);
config.init_server(&f, &server_args);
grpc_call *c;
grpc_call *s;
gpr_timespec deadline = grpc_timeout_seconds_to_deadline(10);
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_call_details call_details;
grpc_status_code status;
grpc_call_error error;
grpc_slice details;
int was_cancelled = 2;
c = grpc_channel_create_call(
f.client, NULL, GRPC_PROPAGATE_DEFAULTS, f.cq,
grpc_slice_from_static_string("/foo"),
get_host_override_slice("foo.test.google.fr:1234", config), deadline,
NULL);
GPR_ASSERT(c);
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);
memset(ops, 0, sizeof(ops));
op = ops;
op->op = GRPC_OP_SEND_INITIAL_METADATA;
op->data.send_initial_metadata.count = 0;
op->data.send_initial_metadata.metadata = NULL;
op->flags = 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.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->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);
error =
grpc_server_request_call(f.server, &s, &call_details,
&request_metadata_recv, f.cq, f.cq, tag(101));
GPR_ASSERT(GRPC_CALL_OK == error);
CQ_EXPECT_COMPLETION(cqv, tag(101), 1);
cq_verify(cqv);
// Send too many pings to the server to trigger the punishment:
// Each ping will trigger a ping strike, and we need at least MAX_PING_STRIKES
// strikes to trigger the punishment. So (MAX_PING_STRIKES + 1) pings are
// needed here.
int i;
for (i = 1; i <= MAX_PING_STRIKES + 1; i++) {
grpc_channel_ping(f.client, f.cq, tag(200 + i), NULL);
CQ_EXPECT_COMPLETION(cqv, tag(200 + i), 1);
if (i == MAX_PING_STRIKES + 1) {
CQ_EXPECT_COMPLETION(cqv, tag(1), 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->reserved = NULL;
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;
grpc_slice status_details = grpc_slice_from_static_string("xyz");
op->data.send_status_from_server.status_details = &status_details;
op->flags = 0;
op->reserved = NULL;
op++;
op->op = GRPC_OP_RECV_CLOSE_ON_SERVER;
op->data.recv_close_on_server.cancelled = &was_cancelled;
op->flags = 0;
op->reserved = NULL;
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_verify(cqv);
grpc_server_shutdown_and_notify(f.server, f.cq, tag(0xdead));
CQ_EXPECT_COMPLETION(cqv, tag(0xdead), 1);
cq_verify(cqv);
grpc_call_unref(s);
// The connection should be closed immediately after the misbehaved pings,
// the in-progress RPC should fail.
GPR_ASSERT(status == GRPC_STATUS_UNAVAILABLE);
GPR_ASSERT(0 == grpc_slice_str_cmp(call_details.method, "/foo"));
validate_host_override_string("foo.test.google.fr:1234", call_details.host,
config);
GPR_ASSERT(was_cancelled == 1);
grpc_slice_unref(details);
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);
grpc_call_unref(c);
cq_verifier_destroy(cqv);
end_test(&f);
config.tear_down_data(&f);
}
void bad_ping(grpc_end2end_test_config config) {
GPR_ASSERT(config.feature_mask & FEATURE_MASK_SUPPORTS_DELAYED_CONNECTION);
test_bad_ping(config);
}
void bad_ping_pre_init(void) {}
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