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      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
     88