95 lines
2.3 KiB
C++
95 lines
2.3 KiB
C++
// Copyright 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SANDBOXED_API_CALL_H_
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#define SANDBOXED_API_CALL_H_
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#include <cstddef>
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#include <cstdint>
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#include "sandboxed_api/var_type.h"
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namespace sapi {
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namespace comms {
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struct ReallocRequest {
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uintptr_t old_addr;
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size_t size;
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};
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// Types of TAGs used with Comms channel.
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// Call:
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constexpr uint32_t kMsgCall = 0x101;
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constexpr uint32_t kMsgAllocate = 0x102;
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constexpr uint32_t kMsgFree = 0x103;
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constexpr uint32_t kMsgExit = 0x104;
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constexpr uint32_t kMsgSymbol = 0x105;
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constexpr uint32_t kMsgSendFd = 0x106;
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constexpr uint32_t kMsgRecvFd = 0x107;
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constexpr uint32_t kMsgClose = 0x108;
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constexpr uint32_t kMsgReallocate = 0x109;
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constexpr uint32_t kMsgStrlen = 0x10A;
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// Return:
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constexpr uint32_t kMsgReturn = 0x201;
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} // namespace comms
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struct FuncCall {
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// Used with HandleCallMsg:
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enum {
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kFuncNameMax = 128,
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kArgsMax = 12,
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};
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// Function to be called.
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char func[kFuncNameMax];
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// Return type.
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v::Type ret_type;
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// Size of the return value (in bytes).
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size_t ret_size;
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// Number of input arguments.
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size_t argc;
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// Types of the input arguments.
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v::Type arg_type[kArgsMax];
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// Size (in bytes) of input arguments.
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size_t arg_size[kArgsMax];
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// Arguments to the call.
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union {
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uintptr_t arg_int;
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long double arg_float;
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} args[kArgsMax];
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// Auxiliary type:
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// For pointers: type of the data it points to,
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// For others: unspecified.
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v::Type aux_type[kArgsMax];
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// Size of the auxiliary data (e.g. a structure the pointer points to).
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size_t aux_size[kArgsMax];
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};
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struct FuncRet {
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// Return type:
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v::Type ret_type;
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// Return value.
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union {
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uintptr_t int_val;
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long double float_val;
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};
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// Status of the operation: success/failure.
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bool success;
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};
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} // namespace sapi
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#endif // SANDBOXED_API_CALL_H_
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