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/*
*
* Copyright 2016 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 <grpc/grpc.h>
#include "src/core/ext/transport/chttp2/transport/chttp2_transport.h"
#include "src/core/lib/iomgr/executor.h"
#include "src/core/lib/slice/slice_internal.h"
#include "src/core/lib/surface/server.h"
#include "test/core/util/memory_counters.h"
#include "test/core/util/mock_endpoint.h"
bool squelch = true;
bool leak_check = true;
static void discard_write(grpc_slice slice) {}
static void* tag(int n) { return (void*)(uintptr_t)n; }
static int detag(void* p) { return (int)(uintptr_t)p; }
static void dont_log(gpr_log_func_args* args) {}
int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
grpc_test_only_set_slice_hash_seed(0);
struct grpc_memory_counters counters;
if (squelch) gpr_set_log_function(dont_log);
if (leak_check) grpc_memory_counters_init();
grpc_init();
grpc_exec_ctx exec_ctx = GRPC_EXEC_CTX_INIT;
grpc_executor_set_threading(&exec_ctx, false);
grpc_resource_quota* resource_quota =
grpc_resource_quota_create("server_fuzzer");
grpc_endpoint* mock_endpoint =
grpc_mock_endpoint_create(discard_write, resource_quota);
grpc_resource_quota_unref_internal(&exec_ctx, resource_quota);
grpc_mock_endpoint_put_read(
&exec_ctx, mock_endpoint,
grpc_slice_from_copied_buffer((const char*)data, size));
grpc_server* server = grpc_server_create(NULL, NULL);
grpc_completion_queue* cq = grpc_completion_queue_create_for_next(NULL);
grpc_server_register_completion_queue(server, cq, NULL);
// TODO(ctiller): add registered methods (one for POST, one for PUT)
// void *registered_method =
// grpc_server_register_method(server, "/reg", NULL, 0);
grpc_server_start(server);
grpc_transport* transport =
grpc_create_chttp2_transport(&exec_ctx, NULL, mock_endpoint, 0);
grpc_server_setup_transport(&exec_ctx, server, transport, NULL, NULL);
grpc_chttp2_transport_start_reading(&exec_ctx, transport, NULL);
grpc_call* call1 = NULL;
grpc_call_details call_details1;
grpc_metadata_array request_metadata1;
grpc_call_details_init(&call_details1);
grpc_metadata_array_init(&request_metadata1);
int requested_calls = 0;
GPR_ASSERT(GRPC_CALL_OK ==
grpc_server_request_call(server, &call1, &call_details1,
&request_metadata1, cq, cq, tag(1)));
requested_calls++;
grpc_event ev;
while (1) {
grpc_exec_ctx_flush(&exec_ctx);
ev = grpc_completion_queue_next(cq, gpr_inf_past(GPR_CLOCK_REALTIME), NULL);
switch (ev.type) {
case GRPC_QUEUE_TIMEOUT:
goto done;
case GRPC_QUEUE_SHUTDOWN:
break;
case GRPC_OP_COMPLETE:
switch (detag(ev.tag)) {
case 1:
requested_calls--;
// TODO(ctiller): keep reading that call!
break;
}
}
}
done:
if (call1 != NULL) grpc_call_unref(call1);
grpc_call_details_destroy(&call_details1);
grpc_metadata_array_destroy(&request_metadata1);
grpc_server_shutdown_and_notify(server, cq, tag(0xdead));
grpc_server_cancel_all_calls(server);
for (int i = 0; i <= requested_calls; i++) {
ev = grpc_completion_queue_next(cq, gpr_inf_past(GPR_CLOCK_REALTIME), NULL);
GPR_ASSERT(ev.type == GRPC_OP_COMPLETE);
}
grpc_completion_queue_shutdown(cq);
for (int i = 0; i <= requested_calls; i++) {
ev = grpc_completion_queue_next(cq, gpr_inf_past(GPR_CLOCK_REALTIME), NULL);
GPR_ASSERT(ev.type == GRPC_QUEUE_SHUTDOWN);
}
grpc_server_destroy(server);
grpc_completion_queue_destroy(cq);
grpc_shutdown();
if (leak_check) {
counters = grpc_memory_counters_snapshot();
grpc_memory_counters_destroy();
GPR_ASSERT(counters.total_size_relative == 0);
}
return 0;
}
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