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_time.h"
   9 #include "native_client/src/trusted/desc/nrd_all_modules.h"
  10
  11
  12 #include "ppapi/native_client/src/trusted/plugin/module_ppapi.h"
  13 #include "ppapi/native_client/src/trusted/plugin/nacl_entry_points.h"
  14 #include "ppapi/native_client/src/trusted/plugin/plugin.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
  45   launch_nacl_process = reinterpret_cast<LaunchNaClProcessFunc>(
  46       private_interface_->LaunchSelLdr);
  47
  48 #if NACL_LINUX || NACL_OSX
  49   // Note that currently we do not need random numbers inside the
  50   // NaCl trusted plugin on Unix, but NaClSecureRngModuleInit() is
  51   // strict and will raise a fatal error unless we provide it with a
  52   // /dev/urandom FD beforehand.
  53   NaClSecureRngModuleSetUrandomFd(dup(private_interface_->UrandomFD()));
  54 #endif
  55
  56   // In the plugin, we don't need high resolution time of day.
  57   NaClAllowLowResolutionTimeOfDay();
  58   NaClNrdAllModulesInit();
  59   NaClSrpcModuleInit();
  60
  61 #if NACL_WINDOWS
  62   NaClSetBrokerDuplicateHandleFunc(private_interface_->BrokerDuplicateHandle);
  63 #endif
  64
  65   init_was_successful_ = true;
  66   return true;
  67 }
  68
  69 pp::Instance* ModulePpapi::CreateInstance(PP_Instance pp_instance) {
  70   MODULE_PRINTF(("ModulePpapi::CreateInstance (pp_instance=%" NACL_PRId32
  71                  ")\n",
  72                  pp_instance));
  73   Plugin* plugin = Plugin::New(pp_instance);
  74   MODULE_PRINTF(("ModulePpapi::CreateInstance (return %p)\n",
  75                  static_cast<void* >(plugin)));
  76   return plugin;
  77 }
  78
  79 }  // namespace plugin
  80
  81
  82 namespace pp {
  83
  84 Module* CreateModule() {
  85   MODULE_PRINTF(("CreateModule ()\n"));
  86   return new plugin::ModulePpapi();
  87 }
  88
  89 }  // namespace pp