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Use existing read buffer in security handshaker if present
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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 <arpa/inet.h> | ||
| #include <openssl/err.h> | ||
| #include <openssl/ssl.h> | ||
| #include <string.h> | ||
| #include <sys/socket.h> | ||
| #include <unistd.h> | ||
|
|
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| #include <grpc/grpc.h> | ||
| #include <grpc/grpc_security.h> | ||
| #include <grpc/support/alloc.h> | ||
| #include <grpc/support/log.h> | ||
| #include <grpc/support/string_util.h> | ||
| #include <grpc/support/sync.h> | ||
| #include <grpc/support/thd.h> | ||
| #include "src/core/lib/iomgr/load_file.h" | ||
| #include "test/core/util/port.h" | ||
| #include "test/core/util/test_config.h" | ||
|
|
||
| #include "src/core/lib/channel/handshaker_factory.h" | ||
| #include "src/core/lib/channel/handshaker_registry.h" | ||
| #include "src/core/lib/security/transport/security_handshaker.h" | ||
|
|
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| #include "test/core/handshake/server_ssl_common.h" | ||
|
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| /* The purpose of this test is to exercise the case when a | ||
| * grpc *security_handshaker* begins its handshake with data already | ||
| * in the read buffer of the handshaker arg. This scenario is created by | ||
| * adding a fake "readahead" handshaker at the beginning of the server's | ||
| * handshaker list, which just reads from the connection and then places | ||
| * read bytes into the read buffer of the handshake arg (to be passed down | ||
| * to the security_handshaker). This test is meant to protect code relying on | ||
| * this functionality that lives outside of this repo. */ | ||
|
|
||
| static void readahead_handshaker_destroy(grpc_exec_ctx *ctx, | ||
| grpc_handshaker *handshaker) { | ||
| gpr_free(handshaker); | ||
| } | ||
|
|
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| static void readahead_handshaker_shutdown(grpc_exec_ctx *ctx, | ||
| grpc_handshaker *handshaker, | ||
| grpc_error *error) {} | ||
|
|
||
| static void readahead_handshaker_do_handshake( | ||
| grpc_exec_ctx *ctx, grpc_handshaker *handshaker, | ||
| grpc_tcp_server_acceptor *acceptor, grpc_closure *on_handshake_done, | ||
| grpc_handshaker_args *args) { | ||
| grpc_endpoint_read(ctx, args->endpoint, args->read_buffer, on_handshake_done); | ||
| } | ||
|
|
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| const grpc_handshaker_vtable readahead_handshaker_vtable = { | ||
| readahead_handshaker_destroy, readahead_handshaker_shutdown, | ||
| readahead_handshaker_do_handshake}; | ||
|
|
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| static grpc_handshaker *readahead_handshaker_create(grpc_exec_ctx *ctx) { | ||
| grpc_handshaker *h = (grpc_handshaker *)gpr_zalloc(sizeof(grpc_handshaker)); | ||
| grpc_handshaker_init(&readahead_handshaker_vtable, h); | ||
| return h; | ||
| } | ||
|
|
||
| static void readahead_handshaker_factory_add_handshakers( | ||
| grpc_exec_ctx *exec_ctx, grpc_handshaker_factory *hf, | ||
| const grpc_channel_args *args, grpc_handshake_manager *handshake_mgr) { | ||
| grpc_handshake_manager_add(handshake_mgr, | ||
| readahead_handshaker_create(exec_ctx)); | ||
| } | ||
|
|
||
| static void readahead_handshaker_factory_destroy( | ||
| grpc_exec_ctx *exec_ctx, grpc_handshaker_factory *handshaker_factory) {} | ||
|
|
||
| static const grpc_handshaker_factory_vtable | ||
| readahead_handshaker_factory_vtable = { | ||
| readahead_handshaker_factory_add_handshakers, | ||
| readahead_handshaker_factory_destroy}; | ||
|
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||
| int main(int argc, char *argv[]) { | ||
| grpc_handshaker_factory readahead_handshaker_factory = { | ||
| &readahead_handshaker_factory_vtable}; | ||
| grpc_init(); | ||
| grpc_handshaker_factory_register(true /* at_start */, HANDSHAKER_SERVER, | ||
| &readahead_handshaker_factory); | ||
| const char *full_alpn_list[] = {"grpc-exp", "h2"}; | ||
| GPR_ASSERT(server_ssl_test(full_alpn_list, 2, "grpc-exp")); | ||
| grpc_shutdown(); | ||
| return 0; | ||
| } |
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