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// Copyright 2008, Google Inc.
// 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 Inc. 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 THE COPYRIGHT
// OWNER OR CONTRIBUTORS 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 SANDBOX_SRC_TARGET_PROCESS_H__
#define SANDBOX_SRC_TARGET_PROCESS_H__
#include <Windows.h>
#include "base/basictypes.h"
#include "sandbox/src/crosscall_server.h"
#include "sandbox/src/sandbox_types.h"
namespace sandbox {
class BrokerServicesBase;
class SharedMemIPCServer;
class BrokerDispatcherBase;
class ThreadProvider;
// TargetProcess models a target instance (child process). Objects of this
// class are owned by the Policy used to create them.
class TargetProcess {
public:
// The constructor takes ownership of all the three handles given to it.
TargetProcess(HANDLE initial_token, HANDLE lockdown_token, HANDLE job,
ThreadProvider* thread_pool);
~TargetProcess();
// TODO(cpu): Currently there does not seem to be a reason to implement
// reference counting for this class since is internal, but kept the
// the same interface so the interception framework does not need to be
// touched at this point.
void AddRef() {}
void Release() {}
// Creates the new target process. The process is created suspended.
DWORD Create(const wchar_t* exe_path, const wchar_t* command_line,
const wchar_t* desktop, PROCESS_INFORMATION* target_info);
// Destroys the target process.
void Terminate();
// Creates the IPC objects such as the BrokerDispatcher and the
// IPC server. The IPC server uses the services of the thread_pool.
DWORD Init(Dispatcher* ipc_dispatcher, void* policy,
size_t shared_IPC_size, size_t shared_policy_size);
// Returns the handle to the target process.
HANDLE Process() const {
return sandbox_process_;
}
// Returns the handle to the job object that the target process belongs to.
HANDLE Job() const {
return job_;
}
// Returns the address of the target main exe. This is used by the
// interceptions framework.
HMODULE MainModule() const {
return reinterpret_cast<HMODULE>(base_address_);
}
// Returns the name of the executable.
const wchar_t* Name() const {
return exe_name_;
}
// Returns the process id.
DWORD ProcessId() const {
return sandbox_process_id_;
}
// Returns the handle to the main thread.
HANDLE MainThread() const {
return sandbox_thread_;
}
// Transfers a 32-bit variable between the broker and the target.
ResultCode TransferVariable(char* name, void* address, size_t size);
private:
// The handle to the target process.
HANDLE sandbox_process_;
// The handle to the main thread.
HANDLE sandbox_thread_;
// The process id of the target process.
DWORD sandbox_process_id_;
// The token associated with the process. It provides the core of the
// sbox security.
HANDLE lockdown_token_;
// The token given to the initial thread so that the target process can
// start. It has more powers than the lockdown_token.
HANDLE initial_token_;
// Kernel handle to the shared memory used by the IPC server.
HANDLE shared_section_;
// Job object containing the target process.
HANDLE job_;
// Reference to the IPC subsystem.
SharedMemIPCServer* ipc_server_;
// Provides the threads used by the IPC. This class does not own this pointer.
ThreadProvider* thread_pool_;
// Base address of the main executable
void* base_address_;
// Full name of the target executable.
wchar_t* exe_name_;
// Desktop where the target process is running.
HDESK desktop_handle_;
// Function used for testing.
friend TargetProcess* MakeTestTargetProcess(HANDLE process,
HMODULE base_address);
DISALLOW_IMPLICIT_CONSTRUCTORS(TargetProcess);
};
// Creates a mock TargetProcess used for testing interceptions.
// TODO(cpu): It seems that this method is not going to be used anymore.
TargetProcess* MakeTestTargetProcess(HANDLE process, HMODULE base_address);
} // namespace sandbox
#endif // SANDBOX_SRC_TARGET_PROCESS_H__
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