src/ppapi/proxy/irt_ppapi.c

   1 /*
   2  * Copyright 2014 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/public/irt_core.h"
   8 #include "native_client/src/trusted/service_runtime/include/sys/unistd.h"
   9 #include "native_client/src/untrusted/irt/irt.h"
  10 #include "native_client/src/untrusted/irt/irt_private.h"
  11 #include "ppapi/nacl_irt/irt_ppapi.h"
  12 #include "ppapi/native_client/src/untrusted/pnacl_irt_shim/irt_shim_ppapi.h"
  13 #include "ppapi/proxy/plugin_main_irt.h"
  14
  15 static struct PP_StartFunctions g_pp_functions;
  16
  17 int irt_ppapi_start(const struct PP_StartFunctions* funcs) {
  18   /* Disable NaCl's open_resource() interface on this thread. */
  19   g_is_main_thread = 1;
  20
  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 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
  50 static const struct nacl_irt_interface irt_interfaces[] = {
  51   { NACL_IRT_PPAPIHOOK_v0_1, &nacl_irt_ppapihook, sizeof(nacl_irt_ppapihook),
  52     NULL },
  53   { NACL_IRT_PPAPIHOOK_PNACL_PRIVATE_v0_1,
  54     &nacl_irt_ppapihook_pnacl_private, sizeof(nacl_irt_ppapihook_pnacl_private),
  55     ppapihook_pnacl_private_filter },
  56 };
  57
  58 static size_t chrome_irt_query(const char* interface_ident,
  59                                void* table, size_t tablesize) {
  60   size_t result = nacl_irt_query_core(interface_ident, table, tablesize);
  61   if (result != 0)
  62     return result;
  63   return nacl_irt_query_list(interface_ident, table, tablesize,
  64                              irt_interfaces, sizeof(irt_interfaces));
  65 }
  66
  67 void nacl_irt_start(uint32_t* info) {
  68   nacl_irt_init(info);
  69   nacl_irt_enter_user_code(info, chrome_irt_query);
  70 }