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// Copyright (c) 2006-2010 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef SANDBOX_SRC_PROCESS_THREAD_POLICY_H_
#define SANDBOX_SRC_PROCESS_THREAD_POLICY_H_
#include <stdint.h>
#include <string>
#include "sandbox/win/src/crosscall_server.h"
#include "sandbox/win/src/policy_low_level.h"
#include "sandbox/win/src/sandbox_policy.h"
namespace sandbox {
// 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_t desired_access,
uint32_t 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_t desired_access,
uint32_t 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 its own
// token (using ::GetCurrentProcess()).
static NTSTATUS OpenProcessTokenAction(const ClientInfo& client_info,
HANDLE process,
uint32_t 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 its own
// token (using ::GetCurrentProcess()).
static NTSTATUS OpenProcessTokenExAction(const ClientInfo& client_info,
HANDLE process,
uint32_t desired_access,
uint32_t 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.
// 'current_dir' : The CWD with which to spawn the child process.
static DWORD CreateProcessWAction(EvalResult eval_result,
const ClientInfo& client_info,
const std::wstring& app_name,
const std::wstring& command_line,
const std::wstring& current_dir,
PROCESS_INFORMATION* process_info);
// Processes a 'CreateThread()' request from the target.
// 'client_info' : the target process that is making the request.
static DWORD CreateThreadAction(const ClientInfo& client_info,
SIZE_T stack_size,
LPTHREAD_START_ROUTINE start_address,
PVOID parameter,
DWORD creation_flags,
LPDWORD thread_id,
HANDLE* handle);
};
} // namespace sandbox
#endif // SANDBOX_SRC_PROCESS_THREAD_POLICY_H_
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