2023-01-28 04:54:20 +00:00
|
|
|
// Copyright 2022 The Crashpad 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 "base/files/file_path.h"
|
|
|
|
#include "base/logging.h"
|
|
|
|
#include "client/crashpad_client.h"
|
|
|
|
#include "util/misc/paths.h"
|
|
|
|
|
|
|
|
#include <Windows.h>
|
|
|
|
|
|
|
|
// We set up a program that crashes with a CFG exception so must be built and
|
|
|
|
// linked with /guard:cf. We register the crashpad runtime exception helper
|
|
|
|
// module to intercept and trigger the crashpad handler. Note that Windows only
|
|
|
|
// loads the module in WerFault after the crash for Windows 10 >= 20h1 (19041).
|
|
|
|
namespace crashpad {
|
|
|
|
namespace {
|
|
|
|
|
|
|
|
// This function should not be on our stack as CFG prevents the modified
|
|
|
|
// icall from happening.
|
|
|
|
int CallRffeManyTimes() {
|
|
|
|
RaiseFailFastException(nullptr, nullptr, 0);
|
|
|
|
RaiseFailFastException(nullptr, nullptr, 0);
|
|
|
|
RaiseFailFastException(nullptr, nullptr, 0);
|
|
|
|
RaiseFailFastException(nullptr, nullptr, 0);
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
using FuncType = decltype(&CallRffeManyTimes);
|
|
|
|
void IndirectCall(FuncType* func) {
|
|
|
|
// This code always generates CFG guards.
|
|
|
|
(*func)();
|
|
|
|
}
|
|
|
|
|
|
|
|
void CfgCrash() {
|
|
|
|
// Call into the middle of the Crashy function.
|
|
|
|
FuncType func = reinterpret_cast<FuncType>(
|
|
|
|
(reinterpret_cast<uintptr_t>(CallRffeManyTimes)) + 16);
|
|
|
|
__try {
|
|
|
|
// Generates a STATUS_STACK_BUFFER_OVERRUN exception if CFG triggers.
|
|
|
|
IndirectCall(&func);
|
|
|
|
} __except (EXCEPTION_EXECUTE_HANDLER) {
|
|
|
|
// CFG fast fail should never be caught.
|
|
|
|
CHECK(false);
|
|
|
|
}
|
|
|
|
// Should only reach here if CFG is disabled.
|
|
|
|
abort();
|
|
|
|
}
|
|
|
|
|
|
|
|
void FastFailCrash() {
|
|
|
|
__fastfail(77);
|
|
|
|
}
|
|
|
|
|
|
|
|
int CrashyMain(int argc, wchar_t* argv[]) {
|
|
|
|
static CrashpadClient* client = new crashpad::CrashpadClient();
|
|
|
|
|
|
|
|
std::wstring type;
|
|
|
|
if (argc == 3) {
|
|
|
|
type = argv[2];
|
|
|
|
// We call this from end_to_end_test.py.
|
|
|
|
if (!client->SetHandlerIPCPipe(argv[1])) {
|
|
|
|
LOG(ERROR) << "SetHandler";
|
|
|
|
return EXIT_FAILURE;
|
|
|
|
}
|
|
|
|
} else if (argc == 4) {
|
|
|
|
type = argv[3];
|
|
|
|
// This is helpful for debugging.
|
|
|
|
if (!client->StartHandler(base::FilePath(argv[1]),
|
|
|
|
base::FilePath(argv[2]),
|
|
|
|
base::FilePath(),
|
|
|
|
std::string(),
|
|
|
|
std::map<std::string, std::string>(),
|
|
|
|
std::vector<std::string>(),
|
|
|
|
false,
|
|
|
|
true)) {
|
|
|
|
LOG(ERROR) << "StartHandler";
|
|
|
|
return EXIT_FAILURE;
|
|
|
|
}
|
|
|
|
// Got to have a handler & registration.
|
|
|
|
if (!client->WaitForHandlerStart(10000)) {
|
|
|
|
LOG(ERROR) << "Handler failed to start";
|
|
|
|
return EXIT_FAILURE;
|
|
|
|
}
|
|
|
|
} else {
|
|
|
|
fprintf(stderr, "Usage: %ls <server_pipe_name> [cf|ff]\n", argv[0]);
|
|
|
|
fprintf(
|
|
|
|
stderr, " %ls <handler_path> <database_path> [cf|ff]\n", argv[0]);
|
|
|
|
return EXIT_FAILURE;
|
|
|
|
}
|
|
|
|
|
|
|
|
base::FilePath exe_path;
|
|
|
|
if (!Paths::Executable(&exe_path)) {
|
|
|
|
LOG(ERROR) << "Failed getting path";
|
|
|
|
return EXIT_FAILURE;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Find the module.
|
|
|
|
auto mod_path = exe_path.DirName().Append(L"crashpad_wer.dll");
|
|
|
|
|
|
|
|
// Make sure it is registered in the registry.
|
|
|
|
DWORD dwOne = 1;
|
|
|
|
LSTATUS reg_res =
|
|
|
|
RegSetKeyValueW(HKEY_CURRENT_USER,
|
|
|
|
L"Software\\Microsoft\\Windows\\Windows Error Reporting\\"
|
|
|
|
L"RuntimeExceptionHelperModules",
|
|
|
|
mod_path.value().c_str(),
|
|
|
|
REG_DWORD,
|
|
|
|
&dwOne,
|
|
|
|
sizeof(DWORD));
|
|
|
|
if (reg_res != ERROR_SUCCESS) {
|
|
|
|
LOG(ERROR) << "RegSetKeyValueW";
|
|
|
|
return EXIT_FAILURE;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (!client->RegisterWerModule(mod_path.value())) {
|
|
|
|
LOG(ERROR) << "WerRegisterRuntimeExceptionModule";
|
|
|
|
return EXIT_FAILURE;
|
|
|
|
}
|
|
|
|
|
2023-12-18 02:39:10 +00:00
|
|
|
// Some versions of python call SetErrorMode() which extends to children, and
|
|
|
|
// prevents the WerFault infrastructure from running.
|
|
|
|
SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOOPENFILEERRORBOX);
|
|
|
|
|
2023-01-28 04:54:20 +00:00
|
|
|
if (type == L"cf")
|
|
|
|
CfgCrash();
|
|
|
|
if (type == L"ff")
|
|
|
|
FastFailCrash();
|
|
|
|
|
|
|
|
LOG(ERROR) << "Invalid type or exception failed.";
|
|
|
|
return EXIT_FAILURE;
|
|
|
|
}
|
|
|
|
|
|
|
|
} // namespace
|
|
|
|
} // namespace crashpad
|
|
|
|
|
|
|
|
int wmain(int argc, wchar_t* argv[]) {
|
|
|
|
return crashpad::CrashyMain(argc, argv);
|
|
|
|
}
|