| /* |
| * |
| * 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 <string.h> |
| |
| #include <grpc/grpc.h> |
| #include <grpc/support/alloc.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/channel.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 void dont_log(gpr_log_func_args* args) {} |
| |
| extern "C" 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("client_fuzzer"); |
| grpc_endpoint* mock_endpoint = |
| grpc_mock_endpoint_create(discard_write, resource_quota); |
| grpc_resource_quota_unref_internal(&exec_ctx, resource_quota); |
| |
| grpc_completion_queue* cq = grpc_completion_queue_create_for_next(nullptr); |
| grpc_transport* transport = |
| grpc_create_chttp2_transport(&exec_ctx, nullptr, mock_endpoint, true); |
| grpc_chttp2_transport_start_reading(&exec_ctx, transport, nullptr, nullptr); |
| |
| grpc_channel* channel = grpc_channel_create( |
| &exec_ctx, "test-target", nullptr, GRPC_CLIENT_DIRECT_CHANNEL, transport); |
| grpc_slice host = grpc_slice_from_static_string("localhost"); |
| grpc_call* call = grpc_channel_create_call( |
| channel, nullptr, 0, cq, grpc_slice_from_static_string("/foo"), &host, |
| gpr_inf_future(GPR_CLOCK_REALTIME), nullptr); |
| |
| grpc_metadata_array initial_metadata_recv; |
| grpc_metadata_array_init(&initial_metadata_recv); |
| grpc_byte_buffer* response_payload_recv = nullptr; |
| grpc_metadata_array trailing_metadata_recv; |
| grpc_metadata_array_init(&trailing_metadata_recv); |
| grpc_status_code status; |
| grpc_slice details = grpc_empty_slice(); |
| |
| grpc_op ops[6]; |
| memset(ops, 0, sizeof(ops)); |
| grpc_op* op = ops; |
| op->op = GRPC_OP_SEND_INITIAL_METADATA; |
| op->data.send_initial_metadata.count = 0; |
| op->flags = 0; |
| op->reserved = nullptr; |
| op++; |
| op->op = GRPC_OP_SEND_CLOSE_FROM_CLIENT; |
| op->flags = 0; |
| op->reserved = nullptr; |
| op++; |
| op->op = GRPC_OP_RECV_INITIAL_METADATA; |
| op->data.recv_initial_metadata.recv_initial_metadata = &initial_metadata_recv; |
| op->flags = 0; |
| op->reserved = nullptr; |
| op++; |
| op->op = GRPC_OP_RECV_MESSAGE; |
| op->data.recv_message.recv_message = &response_payload_recv; |
| op->flags = 0; |
| op->reserved = nullptr; |
| 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 = nullptr; |
| op++; |
| grpc_call_error error = |
| grpc_call_start_batch(call, ops, (size_t)(op - ops), tag(1), nullptr); |
| int requested_calls = 1; |
| GPR_ASSERT(GRPC_CALL_OK == error); |
| |
| grpc_mock_endpoint_put_read( |
| &exec_ctx, mock_endpoint, |
| grpc_slice_from_copied_buffer((const char*)data, size)); |
| |
| grpc_event ev; |
| while (1) { |
| grpc_exec_ctx_flush(&exec_ctx); |
| ev = grpc_completion_queue_next(cq, gpr_inf_past(GPR_CLOCK_REALTIME), |
| nullptr); |
| switch (ev.type) { |
| case GRPC_QUEUE_TIMEOUT: |
| goto done; |
| case GRPC_QUEUE_SHUTDOWN: |
| break; |
| case GRPC_OP_COMPLETE: |
| requested_calls--; |
| break; |
| } |
| } |
| |
| done: |
| if (requested_calls) { |
| grpc_call_cancel(call, nullptr); |
| } |
| for (int i = 0; i < requested_calls; i++) { |
| ev = grpc_completion_queue_next(cq, gpr_inf_past(GPR_CLOCK_REALTIME), |
| nullptr); |
| 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), |
| nullptr); |
| GPR_ASSERT(ev.type == GRPC_QUEUE_SHUTDOWN); |
| } |
| grpc_call_unref(call); |
| grpc_completion_queue_destroy(cq); |
| grpc_metadata_array_destroy(&initial_metadata_recv); |
| grpc_metadata_array_destroy(&trailing_metadata_recv); |
| grpc_slice_unref(details); |
| grpc_channel_destroy(channel); |
| if (response_payload_recv != nullptr) { |
| grpc_byte_buffer_destroy(response_payload_recv); |
| } |
| grpc_shutdown(); |
| if (leak_check) { |
| counters = grpc_memory_counters_snapshot(); |
| grpc_memory_counters_destroy(); |
| GPR_ASSERT(counters.total_size_relative == 0); |
| } |
| return 0; |
| } |