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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_PROCESS_THREAD_POLICY_H__
#define SANDBOX_SRC_PROCESS_THREAD_POLICY_H__
#include <string>
#include "sandbox/src/policy_low_level.h"
#include "base/basictypes.h"
#include "sandbox/src/crosscall_server.h"
#include "sandbox/src/sandbox_policy.h"
namespace sandbox {
enum EvalResult;
// This class centralizes most of the knowledge related to process execution.
class ProcessPolicy {
public:
// Creates the required low-level policy rules to evaluate a high-level.
// policy rule for process creation
// 'name' is the executable to be spawn.
// 'semantics' is the desired semantics.
// 'policy' is the policy generator to which the rules are going to be added.
static bool GenerateRules(const wchar_t* name,
TargetPolicy::Semantics semantics,
LowLevelPolicy* policy);
// Opens a thread from the child process and returns the handle.
// client_info contains the information about the child process,
// desired_access is the access requested by the child and thread_id
// is the thread_id to be opened.
// The function returns the return value of NtOpenThread.
static NTSTATUS OpenThreadAction(const ClientInfo& client_info,
uint32 desired_access,
uint32 thread_id,
HANDLE *handle);
// Opens the process id passed in and returns the duplicated handle to
// the child. We only allow the child processes to open themselves. Any other
// pid open is denied.
static NTSTATUS OpenProcessAction(const ClientInfo& client_info,
uint32 desired_access,
uint32 process_id,
HANDLE *handle);
// Opens the token associated with the process and returns the duplicated
// handle to the child. We only allow the child processes to open his own
// token (using ::GetCurrentProcess()).
static NTSTATUS OpenProcessTokenAction(const ClientInfo& client_info,
uint32 process,
uint32 desired_access,
HANDLE *handle);
// Opens the token associated with the process and returns the duplicated
// handle to the child. We only allow the child processes to open his own
// token (using ::GetCurrentProcess()).
static NTSTATUS OpenProcessTokenExAction(const ClientInfo& client_info,
uint32 process,
uint32 desired_access,
uint32 attributes,
HANDLE *handle);
// Processes a 'CreateProcessW()' request from the target.
// 'client_info' : the target process that is making the request.
// 'eval_result' : The desired policy action to accomplish.
// 'app_name' : The full path of the process to be created.
// 'command_line' : The command line passed to the created process.
static DWORD CreateProcessWAction(EvalResult eval_result,
const ClientInfo& client_info,
const std::wstring &app_name,
const std::wstring &command_line,
PROCESS_INFORMATION* process_info);
};
} // namespace sandbox
#endif // SANDBOX_SRC_PROCESS_THREAD_POLICY_H__
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