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87 lines
2.6 KiB
C
87 lines
2.6 KiB
C
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// Copyright 2017 The Crashpad Authors. All rights reserved.
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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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// http://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 CRASHPAD_UTIL_LINUX_EXCEPTION_HANDLER_PROTOCOL_H_
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#define CRASHPAD_UTIL_LINUX_EXCEPTION_HANDLER_PROTOCOL_H_
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#include <errno.h>
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#include <stdint.h>
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#include <sys/types.h>
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#include "util/file/file_io.h"
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#include "util/misc/address_types.h"
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namespace crashpad {
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#pragma pack(push, 1)
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//! \brief The type used for error reporting.
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using Errno = int32_t;
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static_assert(sizeof(Errno) >= sizeof(errno), "Errno type is too small");
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//! \brief A boolean status suitable for communication between processes.
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enum Bool : char { kBoolFalse, kBoolTrue };
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//! \brief Information about a client registered with an ExceptionHandlerServer.
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struct ClientInformation {
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//! \brief The address in the client's address space of an
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//! ExceptionInformation struct.
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VMAddress exception_information_address;
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};
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//! \brief The message passed from client to server.
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struct ClientToServerMessage {
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static constexpr int32_t kVersion = 1;
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//! \brief Indicates what message version is being used.
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int32_t version = kVersion;
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enum Type : uint32_t {
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//! \brief Used to request a crash dump for the sending client.
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kCrashDumpRequest
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} type;
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union {
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//! \brief Valid for type == kCrashDumpRequest
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ClientInformation client_info;
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};
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};
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//! \brief The message passed from server to client.
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struct ServerToClientMessage {
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enum Type : uint32_t {
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//! \brief Indicates that the client should fork a PtraceBroker process.
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kTypeForkBroker,
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//! \brief Inidicates that the client should set allow the handler to trace
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//! it using PR_SET_PTRACER.
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kTypeSetPtracer,
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//! \brief Indicates that the handler has completed a requested crash dump.
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kTypeCrashDumpComplete,
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//! \brief Indicicates that the handler was unable to produce a crash dump.
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kTypeCrashDumpFailed
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} type;
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//! \brief The handler's process ID. Valid for kTypeSetPtracer.
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pid_t pid;
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};
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#pragma pack(pop)
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} // namespace crashpad
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#endif // CRASHPAD_UTIL_LINUX_EXCEPTION_HANDLER_PROTOCOL_H_
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