Protocol Buffers - Google's data interchange format (grpc依赖) https://developers.google.com/protocol-buffers/
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/*
* Copyright (c) 2009-2022, Google LLC
* 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 LLC 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 Google LLC 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.
*/
#ifndef UPB_TEST_FUZZ_UTIL_H_
#define UPB_TEST_FUZZ_UTIL_H_
#include <string>
#include <vector>
#include "upb/mini_table/extension_registry.h"
// #include "upb/mini_table/types.h"
namespace upb {
namespace fuzz {
struct MiniTableFuzzInput {
// MiniDescripotrs for N messages, in the format accepted by
// upb_MiniTable_Build().
std::vector<std::string> mini_descriptors;
// MiniDescripotrs for N enums, in the format accepted by
// upb_MiniTableEnum_Build().
std::vector<std::string> enum_mini_descriptors;
// A MiniDescriptor for N extensions, in the format accepted by
// upb_MiniTableExtension_Build().
std::string extensions;
// Integer indexes into the message or enum mini tables lists. These specify
// which message or enum to use for each sub-message or enum field. We mod
// by the total number of enums or messages so that any link value can be
// valid.
std::vector<uint32_t> links;
};
// Builds an arbitrary mini table corresponding to the random data in `input`.
// This function should be capable of producing any mini table that can
// successfully build, and any topology of messages and enums (including
// cycles).
//
// As currently written, it effectively fuzzes the mini descriptor parser also,
// and can therefore trigger any bugs in that parser. To better isolate these
// two, we may want to change this implementation to use the mini descriptor
// builder API so we are producing mini descriptors in a known good format. That
// would mostly eliminate the chance of crashing the mini descriptor parser
// itself.
//
// TODO: maps. If we give maps some space in the regular encoding instead of
// using a separate function, we could get that for free.
const upb_MiniTable* BuildMiniTable(const MiniTableFuzzInput& input,
upb_ExtensionRegistry** exts,
upb_Arena* arena);
} // namespace fuzz
} // namespace upb
#endif // UPB_TEST_FUZZ_UTIL_H_