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      1 // Copyright (c) 2006-2010 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "sandbox/win/src/named_pipe_dispatcher.h"
      6 
      7 #include "base/basictypes.h"
      8 
      9 #include "sandbox/win/src/crosscall_client.h"
     10 #include "sandbox/win/src/interception.h"
     11 #include "sandbox/win/src/interceptors.h"
     12 #include "sandbox/win/src/ipc_tags.h"
     13 #include "sandbox/win/src/named_pipe_interception.h"
     14 #include "sandbox/win/src/named_pipe_policy.h"
     15 #include "sandbox/win/src/policy_broker.h"
     16 #include "sandbox/win/src/policy_params.h"
     17 #include "sandbox/win/src/sandbox.h"
     18 
     19 
     20 namespace sandbox {
     21 
     22 NamedPipeDispatcher::NamedPipeDispatcher(PolicyBase* policy_base)
     23     : policy_base_(policy_base) {
     24   static const IPCCall create_params = {
     25     {IPC_CREATENAMEDPIPEW_TAG, WCHAR_TYPE, ULONG_TYPE, ULONG_TYPE, ULONG_TYPE,
     26      ULONG_TYPE, ULONG_TYPE, ULONG_TYPE},
     27     reinterpret_cast<CallbackGeneric>(&NamedPipeDispatcher::CreateNamedPipe)
     28   };
     29 
     30   ipc_calls_.push_back(create_params);
     31 }
     32 
     33 bool NamedPipeDispatcher::SetupService(InterceptionManager* manager,
     34                                        int service) {
     35   if (IPC_CREATENAMEDPIPEW_TAG == service)
     36     return INTERCEPT_EAT(manager, L"kernel32.dll", CreateNamedPipeW,
     37                          CREATE_NAMED_PIPE_ID, 36);
     38 
     39   return false;
     40 }
     41 
     42 bool NamedPipeDispatcher::CreateNamedPipe(
     43     IPCInfo* ipc, std::wstring* name, DWORD open_mode, DWORD pipe_mode,
     44     DWORD max_instances, DWORD out_buffer_size, DWORD in_buffer_size,
     45     DWORD default_timeout) {
     46   const wchar_t* pipe_name = name->c_str();
     47   CountedParameterSet<NameBased> params;
     48   params[NameBased::NAME] = ParamPickerMake(pipe_name);
     49 
     50   EvalResult eval = policy_base_->EvalPolicy(IPC_CREATENAMEDPIPEW_TAG,
     51                                              params.GetBase());
     52 
     53   HANDLE pipe;
     54   DWORD ret = NamedPipePolicy::CreateNamedPipeAction(eval, *ipc->client_info,
     55                                                      *name, open_mode,
     56                                                      pipe_mode, max_instances,
     57                                                      out_buffer_size,
     58                                                      in_buffer_size,
     59                                                      default_timeout, &pipe);
     60 
     61   ipc->return_info.win32_result = ret;
     62   ipc->return_info.handle = pipe;
     63   return true;
     64 }
     65 
     66 }  // namespace sandbox
     67