ppapi/native_client/src/trusted/plugin/module_ppapi.cc

   1 /*
   2  * Copyright (c) 2012 The Chromium Authors. All rights reserved.
   3  * Use of this source code is governed by a BSD-style license that can be
   4  * found in the LICENSE file.
   5  */
   6
   7 #include "native_client/src/shared/imc/nacl_imc_c.h"
   8 #include "native_client/src/shared/platform/nacl_secure_random.h"
   9 #include "native_client/src/shared/platform/nacl_time.h"
  10 #include "native_client/src/trusted/desc/nrd_all_modules.h"
  11
  12 #include "ppapi/native_client/src/trusted/plugin/module_ppapi.h"
  13 #include "ppapi/native_client/src/trusted/plugin/plugin.h"
  14 #include "ppapi/native_client/src/trusted/plugin/utility.h"
  15
  16 namespace plugin {
  17
  18 ModulePpapi::ModulePpapi() : pp::Module(),
  19                              init_was_successful_(false),
  20                              private_interface_(NULL) {
  21   MODULE_PRINTF(("ModulePpapi::ModulePpapi (this=%p)\n",
  22                  static_cast<void*>(this)));
  23 }
  24
  25 ModulePpapi::~ModulePpapi() {
  26   if (init_was_successful_) {
  27     NaClSrpcModuleFini();
  28     NaClNrdAllModulesFini();
  29   }
  30   MODULE_PRINTF(("ModulePpapi::~ModulePpapi (this=%p)\n",
  31                  static_cast<void*>(this)));
  32 }
  33
  34 bool ModulePpapi::Init() {
  35   // Ask the browser for an interface which provides missing functions
  36   private_interface_ = reinterpret_cast<const PPB_NaCl_Private*>(
  37       GetBrowserInterface(PPB_NACL_PRIVATE_INTERFACE));
  38
  39   if (NULL == private_interface_) {
  40     MODULE_PRINTF(("ModulePpapi::Init failed: "
  41                    "GetBrowserInterface returned NULL\n"));
  42     return false;
  43   }
  44   SetNaClInterface(private_interface_);
  45
  46 #if NACL_LINUX || NACL_OSX
  47   // Note that currently we do not need random numbers inside the
  48   // NaCl trusted plugin on Unix, but NaClSecureRngModuleInit() is
  49   // strict and will raise a fatal error unless we provide it with a
  50   // /dev/urandom FD beforehand.
  51   NaClSecureRngModuleSetUrandomFd(dup(private_interface_->UrandomFD()));
  52 #endif
  53
  54   // In the plugin, we don't need high resolution time of day.
  55   NaClAllowLowResolutionTimeOfDay();
  56   NaClNrdAllModulesInit();
  57   NaClSrpcModuleInit();
  58
  59 #if NACL_WINDOWS
  60   NaClSetBrokerDuplicateHandleFunc(private_interface_->BrokerDuplicateHandle);
  61 #endif
  62
  63   init_was_successful_ = true;
  64   return true;
  65 }
  66
  67 pp::Instance* ModulePpapi::CreateInstance(PP_Instance pp_instance) {
  68   MODULE_PRINTF(("ModulePpapi::CreateInstance (pp_instance=%" NACL_PRId32
  69                  ")\n",
  70                  pp_instance));
  71   Plugin* plugin = new Plugin(pp_instance);
  72   MODULE_PRINTF(("ModulePpapi::CreateInstance (return %p)\n",
  73                  static_cast<void* >(plugin)));
  74   return plugin;
  75 }
  76
  77 }  // namespace plugin
  78
  79
  80 namespace pp {
  81
  82 Module* CreateModule() {
  83   MODULE_PRINTF(("CreateModule ()\n"));
  84   return new plugin::ModulePpapi();
  85 }
  86
  87 }  // namespace pp