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