ppapi/nacl_irt/irt_ppapi.cc

   1 // Copyright 2014 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 <unistd.h>
   6
   7 #include "build/build_config.h"
   8 #include "mojo/nacl/mojo_irt.h"
   9 #include "native_client/src/public/irt_core.h"
  10 #include "native_client/src/trusted/service_runtime/include/sys/unistd.h"
  11 #include "native_client/src/untrusted/irt/irt.h"
  12 #include "ppapi/nacl_irt/irt_manifest.h"
  13 #include "ppapi/nacl_irt/irt_ppapi.h"
  14 #include "ppapi/nacl_irt/plugin_main.h"
  15 #include "ppapi/nacl_irt/public/irt_ppapi.h"
  16 #include "ppapi/native_client/src/untrusted/pnacl_irt_shim/irt_shim_ppapi.h"
  17
  18 static struct PP_StartFunctions g_pp_functions;
  19
  20 int irt_ppapi_start(const struct PP_StartFunctions* funcs) {
  21   g_pp_functions = *funcs;
  22   return PpapiPluginMain();
  23 }
  24
  25 int32_t PPP_InitializeModule(PP_Module module_id,
  26                              PPB_GetInterface get_browser_interface) {
  27   return g_pp_functions.PPP_InitializeModule(module_id, get_browser_interface);
  28 }
  29
  30 void PPP_ShutdownModule(void) {
  31   g_pp_functions.PPP_ShutdownModule();
  32 }
  33
  34 const void* PPP_GetInterface(const char* interface_name) {
  35   return g_pp_functions.PPP_GetInterface(interface_name);
  36 }
  37
  38 static const struct nacl_irt_ppapihook nacl_irt_ppapihook = {
  39   irt_ppapi_start,
  40   PpapiPluginRegisterThreadCreator,
  41 };
  42
  43 #if defined(OS_NACL_SFI)
  44 static int ppapihook_pnacl_private_filter(void) {
  45   int pnacl_mode = sysconf(NACL_ABI__SC_NACL_PNACL_MODE);
  46   if (pnacl_mode == -1)
  47     return 0;
  48   return pnacl_mode;
  49 }
  50 #endif
  51
  52 static const nacl_irt_resource_open kIrtResourceOpen = {
  53   ppapi::IrtOpenResource,
  54 };
  55
  56 #if defined(OS_NACL_SFI)
  57 static int not_pnacl_filter(void) {
  58   int pnacl_mode = sysconf(NACL_ABI__SC_NACL_PNACL_MODE);
  59   if (pnacl_mode == -1)
  60     return 0;
  61   return !pnacl_mode;
  62 }
  63 #endif
  64
  65 static const struct nacl_irt_interface irt_interfaces[] = {
  66   { NACL_IRT_PPAPIHOOK_v0_1, &nacl_irt_ppapihook, sizeof(nacl_irt_ppapihook),
  67     NULL },
  68 #if defined(OS_NACL_SFI)
  69   { NACL_IRT_PPAPIHOOK_PNACL_PRIVATE_v0_1,
  70     &nacl_irt_ppapihook_pnacl_private, sizeof(nacl_irt_ppapihook_pnacl_private),
  71     ppapihook_pnacl_private_filter },
  72 #endif
  73   { NACL_IRT_RESOURCE_OPEN_v0_1, &kIrtResourceOpen,
  74     sizeof(kIrtResourceOpen),
  75 #if defined(OS_NACL_SFI)
  76     not_pnacl_filter,
  77 #else
  78     // If we change PNaCl to use Non-SFI Mode on the open web,
  79     // we should add a filter here.
  80     NULL,
  81 #endif
  82   },
  83 };
  84
  85 size_t chrome_irt_query(const char* interface_ident,
  86                         void* table, size_t tablesize) {
  87   size_t result = nacl_irt_query_list(interface_ident,
  88                                       table,
  89                                       tablesize,
  90                                       irt_interfaces,
  91                                       sizeof(irt_interfaces));
  92   if (result != 0)
  93     return result;
  94
  95 #if defined(OS_NACL_SFI)
  96   result = mojo_irt_query(interface_ident, table, tablesize);
  97   if (result != 0)
  98     return result;
  99 #endif
 100
 101   return nacl_irt_query_core(interface_ident, table, tablesize);
 102 }